hvc_iucv= [S390] Number of z/VM IUCV hypervisor console (HVC)
terminal devices. Valid values: 0..8
+ hvc_iucv_allow= [S390] Comma-separated list of z/VM user IDs.
+ If specified, z/VM IUCV HVC accepts connections
+ from listed z/VM user IDs only.
i8042.debug [HW] Toggle i8042 debug mode
i8042.direct [HW] Put keyboard port into non-translated mode
W: http://www.ibm.com/developerworks/linux/linux390/
S: Supported
+S390 ZCRYPT DRIVER
+P: Felix Beck
+M: felix.beck@de.ibm.com
+P: Ralph Wuerthner
+M: ralph.wuerthner@de.ibm.com
+M: linux390@de.ibm.com
+L: linux-s390@vger.kernel.org
+S: Supported
+
S390 ZFCP DRIVER
P: Christof Schmitt
M: christof.schmitt@de.ibm.com
comment "I/O subsystem configuration"
-config MACHCHK_WARNING
- bool "Process warning machine checks"
- help
- Select this option if you want the machine check handler on IBM S/390 or
- zSeries to process warning machine checks (e.g. on power failures).
- If unsure, say "Y".
-
config QDIO
tristate "QDIO support"
---help---
config APPLDATA_NET_SUM
tristate "Monitor overall network statistics"
- depends on APPLDATA_BASE
+ depends on APPLDATA_BASE && NET
help
This provides network related data to the Linux - VM Monitor Stream,
currently there is only a total sum of network I/O statistics, no
but is independent of hardware/microcode support.
config ZFCPDUMP
- tristate "zfcpdump support"
+ bool "zfcpdump support"
select SMP
default n
help
static void __exit prng_exit(void)
{
/* wipe me */
- memset(p->buf, 0, prng_chunk_size);
- kfree(p->buf);
+ kzfree(p->buf);
kfree(p);
misc_deregister(&prng_dev);
* with operation of the form "set_bit(bitnr, flags)".
*/
-/* bitmap tables from arch/S390/kernel/bitmap.S */
+/* bitmap tables from arch/s390/kernel/bitmap.c */
extern const char _oi_bitmap[];
extern const char _ni_bitmap[];
extern const char _zb_findmap[];
static inline unsigned long __ffz_word(unsigned long nr, unsigned long word)
{
#ifdef __s390x__
- if (likely((word & 0xffffffff) == 0xffffffff)) {
+ if ((word & 0xffffffff) == 0xffffffff) {
word >>= 32;
nr += 32;
}
#endif
- if (likely((word & 0xffff) == 0xffff)) {
+ if ((word & 0xffff) == 0xffff) {
word >>= 16;
nr += 16;
}
- if (likely((word & 0xff) == 0xff)) {
+ if ((word & 0xff) == 0xff) {
word >>= 8;
nr += 8;
}
static inline unsigned long __ffs_word(unsigned long nr, unsigned long word)
{
#ifdef __s390x__
- if (likely((word & 0xffffffff) == 0)) {
+ if ((word & 0xffffffff) == 0) {
word >>= 32;
nr += 32;
}
#endif
- if (likely((word & 0xffff) == 0)) {
+ if ((word & 0xffff) == 0) {
word >>= 16;
nr += 16;
}
- if (likely((word & 0xff) == 0)) {
+ if ((word & 0xff) == 0) {
word >>= 8;
nr += 8;
}
--- /dev/null
+/*
+ * Data definitions for channel report processing
+ * Copyright IBM Corp. 2000,2009
+ * Author(s): Ingo Adlung <adlung@de.ibm.com>,
+ * Martin Schwidefsky <schwidefsky@de.ibm.com>,
+ * Cornelia Huck <cornelia.huck@de.ibm.com>,
+ * Heiko Carstens <heiko.carstens@de.ibm.com>,
+ */
+
+#ifndef _ASM_S390_CRW_H
+#define _ASM_S390_CRW_H
+
+#include <linux/types.h>
+
+/*
+ * Channel Report Word
+ */
+struct crw {
+ __u32 res1 : 1; /* reserved zero */
+ __u32 slct : 1; /* solicited */
+ __u32 oflw : 1; /* overflow */
+ __u32 chn : 1; /* chained */
+ __u32 rsc : 4; /* reporting source code */
+ __u32 anc : 1; /* ancillary report */
+ __u32 res2 : 1; /* reserved zero */
+ __u32 erc : 6; /* error-recovery code */
+ __u32 rsid : 16; /* reporting-source ID */
+} __attribute__ ((packed));
+
+typedef void (*crw_handler_t)(struct crw *, struct crw *, int);
+
+extern int crw_register_handler(int rsc, crw_handler_t handler);
+extern void crw_unregister_handler(int rsc);
+extern void crw_handle_channel_report(void);
+
+#define NR_RSCS 16
+
+#define CRW_RSC_MONITOR 0x2 /* monitoring facility */
+#define CRW_RSC_SCH 0x3 /* subchannel */
+#define CRW_RSC_CPATH 0x4 /* channel path */
+#define CRW_RSC_CONFIG 0x9 /* configuration-alert facility */
+#define CRW_RSC_CSS 0xB /* channel subsystem */
+
+#define CRW_ERC_EVENT 0x00 /* event information pending */
+#define CRW_ERC_AVAIL 0x01 /* available */
+#define CRW_ERC_INIT 0x02 /* initialized */
+#define CRW_ERC_TERROR 0x03 /* temporary error */
+#define CRW_ERC_IPARM 0x04 /* installed parm initialized */
+#define CRW_ERC_TERM 0x05 /* terminal */
+#define CRW_ERC_PERRN 0x06 /* perm. error, fac. not init */
+#define CRW_ERC_PERRI 0x07 /* perm. error, facility init */
+#define CRW_ERC_PMOD 0x08 /* installed parameters modified */
+
+static inline int stcrw(struct crw *pcrw)
+{
+ int ccode;
+
+ asm volatile(
+ " stcrw 0(%2)\n"
+ " ipm %0\n"
+ " srl %0,28\n"
+ : "=d" (ccode), "=m" (*pcrw)
+ : "a" (pcrw)
+ : "cc" );
+ return ccode;
+}
+
+#endif /* _ASM_S390_CRW_H */
unsigned int dasd_io_nr_req[32]; /* histogram of # of requests in chanq */
} dasd_profile_info_t;
-/*
+/*
* struct format_data_t
* represents all data necessary to format a dasd
*/
typedef struct format_data_t {
- int start_unit; /* from track */
- int stop_unit; /* to track */
- int blksize; /* sectorsize */
- int intensity;
+ unsigned int start_unit; /* from track */
+ unsigned int stop_unit; /* to track */
+ unsigned int blksize; /* sectorsize */
+ unsigned int intensity;
} format_data_t;
/*
/*
* Return the number of idal words needed for an address/length pair.
*/
-static inline unsigned int
-idal_nr_words(void *vaddr, unsigned int length)
+static inline unsigned int idal_nr_words(void *vaddr, unsigned int length)
{
-#ifdef __s390x__
- if (idal_is_needed(vaddr, length))
- return ((__pa(vaddr) & (IDA_BLOCK_SIZE-1)) + length +
- (IDA_BLOCK_SIZE-1)) >> IDA_SIZE_LOG;
-#endif
- return 0;
+ return ((__pa(vaddr) & (IDA_BLOCK_SIZE-1)) + length +
+ (IDA_BLOCK_SIZE-1)) >> IDA_SIZE_LOG;
}
/*
* Create the list of idal words for an address/length pair.
*/
-static inline unsigned long *
-idal_create_words(unsigned long *idaws, void *vaddr, unsigned int length)
+static inline unsigned long *idal_create_words(unsigned long *idaws,
+ void *vaddr, unsigned int length)
{
-#ifdef __s390x__
unsigned long paddr;
unsigned int cidaw;
paddr += IDA_BLOCK_SIZE;
*idaws++ = paddr;
}
-#endif
return idaws;
}
#ifndef _ASM_S390_LOWCORE_H
#define _ASM_S390_LOWCORE_H
-#ifndef __s390x__
-#define __LC_EXT_OLD_PSW 0x018
-#define __LC_SVC_OLD_PSW 0x020
-#define __LC_PGM_OLD_PSW 0x028
-#define __LC_MCK_OLD_PSW 0x030
-#define __LC_IO_OLD_PSW 0x038
-#define __LC_EXT_NEW_PSW 0x058
-#define __LC_SVC_NEW_PSW 0x060
-#define __LC_PGM_NEW_PSW 0x068
-#define __LC_MCK_NEW_PSW 0x070
-#define __LC_IO_NEW_PSW 0x078
-#else /* !__s390x__ */
-#define __LC_EXT_OLD_PSW 0x0130
-#define __LC_SVC_OLD_PSW 0x0140
-#define __LC_PGM_OLD_PSW 0x0150
-#define __LC_MCK_OLD_PSW 0x0160
-#define __LC_IO_OLD_PSW 0x0170
-#define __LC_EXT_NEW_PSW 0x01b0
-#define __LC_SVC_NEW_PSW 0x01c0
-#define __LC_PGM_NEW_PSW 0x01d0
-#define __LC_MCK_NEW_PSW 0x01e0
-#define __LC_IO_NEW_PSW 0x01f0
-#endif /* !__s390x__ */
-
-#define __LC_IPL_PARMBLOCK_PTR 0x014
-#define __LC_EXT_PARAMS 0x080
-#define __LC_CPU_ADDRESS 0x084
-#define __LC_EXT_INT_CODE 0x086
-
-#define __LC_SVC_ILC 0x088
-#define __LC_SVC_INT_CODE 0x08A
-#define __LC_PGM_ILC 0x08C
-#define __LC_PGM_INT_CODE 0x08E
+#define __LC_IPL_PARMBLOCK_PTR 0x0014
+#define __LC_EXT_PARAMS 0x0080
+#define __LC_CPU_ADDRESS 0x0084
+#define __LC_EXT_INT_CODE 0x0086
-#define __LC_PER_ATMID 0x096
-#define __LC_PER_ADDRESS 0x098
-#define __LC_PER_ACCESS_ID 0x0A1
-#define __LC_AR_MODE_ID 0x0A3
+#define __LC_SVC_ILC 0x0088
+#define __LC_SVC_INT_CODE 0x008a
+#define __LC_PGM_ILC 0x008c
+#define __LC_PGM_INT_CODE 0x008e
-#define __LC_SUBCHANNEL_ID 0x0B8
-#define __LC_SUBCHANNEL_NR 0x0BA
-#define __LC_IO_INT_PARM 0x0BC
-#define __LC_IO_INT_WORD 0x0C0
-#define __LC_MCCK_CODE 0x0E8
+#define __LC_PER_ATMID 0x0096
+#define __LC_PER_ADDRESS 0x0098
+#define __LC_PER_ACCESS_ID 0x00a1
+#define __LC_AR_MODE_ID 0x00a3
-#define __LC_LAST_BREAK 0x110
-
-#define __LC_RETURN_PSW 0x200
-
-#define __LC_SAVE_AREA 0xC00
-
-#ifndef __s390x__
-#define __LC_IRB 0x208
-#define __LC_SYNC_ENTER_TIMER 0x248
-#define __LC_ASYNC_ENTER_TIMER 0x250
-#define __LC_EXIT_TIMER 0x258
-#define __LC_USER_TIMER 0x260
-#define __LC_SYSTEM_TIMER 0x268
-#define __LC_STEAL_TIMER 0x270
-#define __LC_LAST_UPDATE_TIMER 0x278
-#define __LC_LAST_UPDATE_CLOCK 0x280
-#define __LC_RETURN_MCCK_PSW 0x288
-#define __LC_KERNEL_STACK 0xC40
-#define __LC_THREAD_INFO 0xC44
-#define __LC_ASYNC_STACK 0xC48
-#define __LC_KERNEL_ASCE 0xC4C
-#define __LC_USER_ASCE 0xC50
-#define __LC_PANIC_STACK 0xC54
-#define __LC_CPUID 0xC60
-#define __LC_CPUADDR 0xC68
-#define __LC_IPLDEV 0xC7C
-#define __LC_CURRENT 0xC90
-#define __LC_INT_CLOCK 0xC98
-#else /* __s390x__ */
-#define __LC_IRB 0x210
-#define __LC_SYNC_ENTER_TIMER 0x250
-#define __LC_ASYNC_ENTER_TIMER 0x258
-#define __LC_EXIT_TIMER 0x260
-#define __LC_USER_TIMER 0x268
-#define __LC_SYSTEM_TIMER 0x270
-#define __LC_STEAL_TIMER 0x278
-#define __LC_LAST_UPDATE_TIMER 0x280
-#define __LC_LAST_UPDATE_CLOCK 0x288
-#define __LC_RETURN_MCCK_PSW 0x290
-#define __LC_KERNEL_STACK 0xD40
-#define __LC_THREAD_INFO 0xD48
-#define __LC_ASYNC_STACK 0xD50
-#define __LC_KERNEL_ASCE 0xD58
-#define __LC_USER_ASCE 0xD60
-#define __LC_PANIC_STACK 0xD68
-#define __LC_CPUID 0xD80
-#define __LC_CPUADDR 0xD88
-#define __LC_IPLDEV 0xDB8
-#define __LC_CURRENT 0xDD8
-#define __LC_INT_CLOCK 0xDE8
-#define __LC_VDSO_PER_CPU 0xE38
-#endif /* __s390x__ */
+#define __LC_SUBCHANNEL_ID 0x00b8
+#define __LC_SUBCHANNEL_NR 0x00ba
+#define __LC_IO_INT_PARM 0x00bc
+#define __LC_IO_INT_WORD 0x00c0
+#define __LC_MCCK_CODE 0x00e8
-#define __LC_PASTE 0xE40
+#define __LC_DUMP_REIPL 0x0e00
-#define __LC_PANIC_MAGIC 0xE00
#ifndef __s390x__
-#define __LC_PFAULT_INTPARM 0x080
-#define __LC_CPU_TIMER_SAVE_AREA 0x0D8
-#define __LC_CLOCK_COMP_SAVE_AREA 0x0E0
-#define __LC_PSW_SAVE_AREA 0x100
-#define __LC_PREFIX_SAVE_AREA 0x108
-#define __LC_AREGS_SAVE_AREA 0x120
-#define __LC_FPREGS_SAVE_AREA 0x160
-#define __LC_GPREGS_SAVE_AREA 0x180
-#define __LC_CREGS_SAVE_AREA 0x1C0
+#define __LC_EXT_OLD_PSW 0x0018
+#define __LC_SVC_OLD_PSW 0x0020
+#define __LC_PGM_OLD_PSW 0x0028
+#define __LC_MCK_OLD_PSW 0x0030
+#define __LC_IO_OLD_PSW 0x0038
+#define __LC_EXT_NEW_PSW 0x0058
+#define __LC_SVC_NEW_PSW 0x0060
+#define __LC_PGM_NEW_PSW 0x0068
+#define __LC_MCK_NEW_PSW 0x0070
+#define __LC_IO_NEW_PSW 0x0078
+#define __LC_SAVE_AREA 0x0200
+#define __LC_RETURN_PSW 0x0240
+#define __LC_RETURN_MCCK_PSW 0x0248
+#define __LC_SYNC_ENTER_TIMER 0x0250
+#define __LC_ASYNC_ENTER_TIMER 0x0258
+#define __LC_EXIT_TIMER 0x0260
+#define __LC_USER_TIMER 0x0268
+#define __LC_SYSTEM_TIMER 0x0270
+#define __LC_STEAL_TIMER 0x0278
+#define __LC_LAST_UPDATE_TIMER 0x0280
+#define __LC_LAST_UPDATE_CLOCK 0x0288
+#define __LC_CURRENT 0x0290
+#define __LC_THREAD_INFO 0x0294
+#define __LC_KERNEL_STACK 0x0298
+#define __LC_ASYNC_STACK 0x029c
+#define __LC_PANIC_STACK 0x02a0
+#define __LC_KERNEL_ASCE 0x02a4
+#define __LC_USER_ASCE 0x02a8
+#define __LC_USER_EXEC_ASCE 0x02ac
+#define __LC_CPUID 0x02b0
+#define __LC_INT_CLOCK 0x02c8
+#define __LC_IRB 0x0300
+#define __LC_PFAULT_INTPARM 0x0080
+#define __LC_CPU_TIMER_SAVE_AREA 0x00d8
+#define __LC_CLOCK_COMP_SAVE_AREA 0x00e0
+#define __LC_PSW_SAVE_AREA 0x0100
+#define __LC_PREFIX_SAVE_AREA 0x0108
+#define __LC_AREGS_SAVE_AREA 0x0120
+#define __LC_FPREGS_SAVE_AREA 0x0160
+#define __LC_GPREGS_SAVE_AREA 0x0180
+#define __LC_CREGS_SAVE_AREA 0x01c0
#else /* __s390x__ */
-#define __LC_PFAULT_INTPARM 0x11B8
+#define __LC_LAST_BREAK 0x0110
+#define __LC_EXT_OLD_PSW 0x0130
+#define __LC_SVC_OLD_PSW 0x0140
+#define __LC_PGM_OLD_PSW 0x0150
+#define __LC_MCK_OLD_PSW 0x0160
+#define __LC_IO_OLD_PSW 0x0170
+#define __LC_EXT_NEW_PSW 0x01b0
+#define __LC_SVC_NEW_PSW 0x01c0
+#define __LC_PGM_NEW_PSW 0x01d0
+#define __LC_MCK_NEW_PSW 0x01e0
+#define __LC_IO_NEW_PSW 0x01f0
+#define __LC_SAVE_AREA 0x0200
+#define __LC_RETURN_PSW 0x0280
+#define __LC_RETURN_MCCK_PSW 0x0290
+#define __LC_SYNC_ENTER_TIMER 0x02a0
+#define __LC_ASYNC_ENTER_TIMER 0x02a8
+#define __LC_EXIT_TIMER 0x02b0
+#define __LC_USER_TIMER 0x02b8
+#define __LC_SYSTEM_TIMER 0x02c0
+#define __LC_STEAL_TIMER 0x02c8
+#define __LC_LAST_UPDATE_TIMER 0x02d0
+#define __LC_LAST_UPDATE_CLOCK 0x02d8
+#define __LC_CURRENT 0x02e0
+#define __LC_THREAD_INFO 0x02e8
+#define __LC_KERNEL_STACK 0x02f0
+#define __LC_ASYNC_STACK 0x02f8
+#define __LC_PANIC_STACK 0x0300
+#define __LC_KERNEL_ASCE 0x0308
+#define __LC_USER_ASCE 0x0310
+#define __LC_USER_EXEC_ASCE 0x0318
+#define __LC_CPUID 0x0320
+#define __LC_INT_CLOCK 0x0340
+#define __LC_VDSO_PER_CPU 0x0350
+#define __LC_IRB 0x0380
+#define __LC_PASTE 0x03c0
+#define __LC_PFAULT_INTPARM 0x11b8
#define __LC_FPREGS_SAVE_AREA 0x1200
-#define __LC_GPREGS_SAVE_AREA 0x1280
+#define __LC_GPREGS_SAVE_AREA 0x1280
#define __LC_PSW_SAVE_AREA 0x1300
#define __LC_PREFIX_SAVE_AREA 0x1318
-#define __LC_FP_CREG_SAVE_AREA 0x131C
+#define __LC_FP_CREG_SAVE_AREA 0x131c
#define __LC_TODREG_SAVE_AREA 0x1324
-#define __LC_CPU_TIMER_SAVE_AREA 0x1328
+#define __LC_CPU_TIMER_SAVE_AREA 0x1328
#define __LC_CLOCK_COMP_SAVE_AREA 0x1331
-#define __LC_AREGS_SAVE_AREA 0x1340
-#define __LC_CREGS_SAVE_AREA 0x1380
+#define __LC_AREGS_SAVE_AREA 0x1340
+#define __LC_CREGS_SAVE_AREA 0x1380
#endif /* __s390x__ */
#ifndef __ASSEMBLY__
struct _lowcore
{
#ifndef __s390x__
- /* prefix area: defined by architecture */
- psw_t restart_psw; /* 0x000 */
- __u32 ccw2[4]; /* 0x008 */
- psw_t external_old_psw; /* 0x018 */
- psw_t svc_old_psw; /* 0x020 */
- psw_t program_old_psw; /* 0x028 */
- psw_t mcck_old_psw; /* 0x030 */
- psw_t io_old_psw; /* 0x038 */
- __u8 pad1[0x58-0x40]; /* 0x040 */
- psw_t external_new_psw; /* 0x058 */
- psw_t svc_new_psw; /* 0x060 */
- psw_t program_new_psw; /* 0x068 */
- psw_t mcck_new_psw; /* 0x070 */
- psw_t io_new_psw; /* 0x078 */
- __u32 ext_params; /* 0x080 */
- __u16 cpu_addr; /* 0x084 */
- __u16 ext_int_code; /* 0x086 */
- __u16 svc_ilc; /* 0x088 */
- __u16 svc_code; /* 0x08a */
- __u16 pgm_ilc; /* 0x08c */
- __u16 pgm_code; /* 0x08e */
- __u32 trans_exc_code; /* 0x090 */
- __u16 mon_class_num; /* 0x094 */
- __u16 per_perc_atmid; /* 0x096 */
- __u32 per_address; /* 0x098 */
- __u32 monitor_code; /* 0x09c */
- __u8 exc_access_id; /* 0x0a0 */
- __u8 per_access_id; /* 0x0a1 */
- __u8 pad2[0xB8-0xA2]; /* 0x0a2 */
- __u16 subchannel_id; /* 0x0b8 */
- __u16 subchannel_nr; /* 0x0ba */
- __u32 io_int_parm; /* 0x0bc */
- __u32 io_int_word; /* 0x0c0 */
- __u8 pad3[0xc8-0xc4]; /* 0x0c4 */
- __u32 stfl_fac_list; /* 0x0c8 */
- __u8 pad4[0xd4-0xcc]; /* 0x0cc */
- __u32 extended_save_area_addr; /* 0x0d4 */
- __u32 cpu_timer_save_area[2]; /* 0x0d8 */
- __u32 clock_comp_save_area[2]; /* 0x0e0 */
- __u32 mcck_interruption_code[2]; /* 0x0e8 */
- __u8 pad5[0xf4-0xf0]; /* 0x0f0 */
- __u32 external_damage_code; /* 0x0f4 */
- __u32 failing_storage_address; /* 0x0f8 */
- __u8 pad6[0x100-0xfc]; /* 0x0fc */
- __u32 st_status_fixed_logout[4];/* 0x100 */
- __u8 pad7[0x120-0x110]; /* 0x110 */
- __u32 access_regs_save_area[16];/* 0x120 */
- __u32 floating_pt_save_area[8]; /* 0x160 */
- __u32 gpregs_save_area[16]; /* 0x180 */
- __u32 cregs_save_area[16]; /* 0x1c0 */
-
- psw_t return_psw; /* 0x200 */
- __u8 irb[64]; /* 0x208 */
- __u64 sync_enter_timer; /* 0x248 */
- __u64 async_enter_timer; /* 0x250 */
- __u64 exit_timer; /* 0x258 */
- __u64 user_timer; /* 0x260 */
- __u64 system_timer; /* 0x268 */
- __u64 steal_timer; /* 0x270 */
- __u64 last_update_timer; /* 0x278 */
- __u64 last_update_clock; /* 0x280 */
- psw_t return_mcck_psw; /* 0x288 */
- __u8 pad8[0xc00-0x290]; /* 0x290 */
-
- /* System info area */
- __u32 save_area[16]; /* 0xc00 */
- __u32 kernel_stack; /* 0xc40 */
- __u32 thread_info; /* 0xc44 */
- __u32 async_stack; /* 0xc48 */
- __u32 kernel_asce; /* 0xc4c */
- __u32 user_asce; /* 0xc50 */
- __u32 panic_stack; /* 0xc54 */
- __u32 user_exec_asce; /* 0xc58 */
- __u8 pad10[0xc60-0xc5c]; /* 0xc5c */
- /* entry.S sensitive area start */
- struct cpuinfo_S390 cpu_data; /* 0xc60 */
- __u32 ipl_device; /* 0xc7c */
- /* entry.S sensitive area end */
-
- /* SMP info area: defined by DJB */
- __u64 clock_comparator; /* 0xc80 */
- __u32 ext_call_fast; /* 0xc88 */
- __u32 percpu_offset; /* 0xc8c */
- __u32 current_task; /* 0xc90 */
- __u32 softirq_pending; /* 0xc94 */
- __u64 int_clock; /* 0xc98 */
- __u8 pad11[0xe00-0xca0]; /* 0xca0 */
-
- /* 0xe00 is used as indicator for dump tools */
- /* whether the kernel died with panic() or not */
- __u32 panic_magic; /* 0xe00 */
-
- /* Align to the top 1k of prefix area */
- __u8 pad12[0x1000-0xe04]; /* 0xe04 */
+ /* 0x0000 - 0x01ff: defined by architecture */
+ psw_t restart_psw; /* 0x0000 */
+ __u32 ccw2[4]; /* 0x0008 */
+ psw_t external_old_psw; /* 0x0018 */
+ psw_t svc_old_psw; /* 0x0020 */
+ psw_t program_old_psw; /* 0x0028 */
+ psw_t mcck_old_psw; /* 0x0030 */
+ psw_t io_old_psw; /* 0x0038 */
+ __u8 pad_0x0040[0x0058-0x0040]; /* 0x0040 */
+ psw_t external_new_psw; /* 0x0058 */
+ psw_t svc_new_psw; /* 0x0060 */
+ psw_t program_new_psw; /* 0x0068 */
+ psw_t mcck_new_psw; /* 0x0070 */
+ psw_t io_new_psw; /* 0x0078 */
+ __u32 ext_params; /* 0x0080 */
+ __u16 cpu_addr; /* 0x0084 */
+ __u16 ext_int_code; /* 0x0086 */
+ __u16 svc_ilc; /* 0x0088 */
+ __u16 svc_code; /* 0x008a */
+ __u16 pgm_ilc; /* 0x008c */
+ __u16 pgm_code; /* 0x008e */
+ __u32 trans_exc_code; /* 0x0090 */
+ __u16 mon_class_num; /* 0x0094 */
+ __u16 per_perc_atmid; /* 0x0096 */
+ __u32 per_address; /* 0x0098 */
+ __u32 monitor_code; /* 0x009c */
+ __u8 exc_access_id; /* 0x00a0 */
+ __u8 per_access_id; /* 0x00a1 */
+ __u8 pad_0x00a2[0x00b8-0x00a2]; /* 0x00a2 */
+ __u16 subchannel_id; /* 0x00b8 */
+ __u16 subchannel_nr; /* 0x00ba */
+ __u32 io_int_parm; /* 0x00bc */
+ __u32 io_int_word; /* 0x00c0 */
+ __u8 pad_0x00c4[0x00c8-0x00c4]; /* 0x00c4 */
+ __u32 stfl_fac_list; /* 0x00c8 */
+ __u8 pad_0x00cc[0x00d4-0x00cc]; /* 0x00cc */
+ __u32 extended_save_area_addr; /* 0x00d4 */
+ __u32 cpu_timer_save_area[2]; /* 0x00d8 */
+ __u32 clock_comp_save_area[2]; /* 0x00e0 */
+ __u32 mcck_interruption_code[2]; /* 0x00e8 */
+ __u8 pad_0x00f0[0x00f4-0x00f0]; /* 0x00f0 */
+ __u32 external_damage_code; /* 0x00f4 */
+ __u32 failing_storage_address; /* 0x00f8 */
+ __u8 pad_0x00fc[0x0100-0x00fc]; /* 0x00fc */
+ __u32 st_status_fixed_logout[4]; /* 0x0100 */
+ __u8 pad_0x0110[0x0120-0x0110]; /* 0x0110 */
+
+ /* CPU register save area: defined by architecture */
+ __u32 access_regs_save_area[16]; /* 0x0120 */
+ __u32 floating_pt_save_area[8]; /* 0x0160 */
+ __u32 gpregs_save_area[16]; /* 0x0180 */
+ __u32 cregs_save_area[16]; /* 0x01c0 */
+
+ /* Return psws. */
+ __u32 save_area[16]; /* 0x0200 */
+ psw_t return_psw; /* 0x0240 */
+ psw_t return_mcck_psw; /* 0x0248 */
+
+ /* CPU time accounting values */
+ __u64 sync_enter_timer; /* 0x0250 */
+ __u64 async_enter_timer; /* 0x0258 */
+ __u64 exit_timer; /* 0x0260 */
+ __u64 user_timer; /* 0x0268 */
+ __u64 system_timer; /* 0x0270 */
+ __u64 steal_timer; /* 0x0278 */
+ __u64 last_update_timer; /* 0x0280 */
+ __u64 last_update_clock; /* 0x0288 */
+
+ /* Current process. */
+ __u32 current_task; /* 0x0290 */
+ __u32 thread_info; /* 0x0294 */
+ __u32 kernel_stack; /* 0x0298 */
+
+ /* Interrupt and panic stack. */
+ __u32 async_stack; /* 0x029c */
+ __u32 panic_stack; /* 0x02a0 */
+
+ /* Address space pointer. */
+ __u32 kernel_asce; /* 0x02a4 */
+ __u32 user_asce; /* 0x02a8 */
+ __u32 user_exec_asce; /* 0x02ac */
+
+ /* SMP info area */
+ cpuid_t cpu_id; /* 0x02b0 */
+ __u32 cpu_nr; /* 0x02b8 */
+ __u32 softirq_pending; /* 0x02bc */
+ __u32 percpu_offset; /* 0x02c0 */
+ __u32 ext_call_fast; /* 0x02c4 */
+ __u64 int_clock; /* 0x02c8 */
+ __u64 clock_comparator; /* 0x02d0 */
+ __u8 pad_0x02d8[0x0300-0x02d8]; /* 0x02d8 */
+
+ /* Interrupt response block */
+ __u8 irb[64]; /* 0x0300 */
+
+ __u8 pad_0x0400[0x0e00-0x0400]; /* 0x0400 */
+
+ /*
+ * 0xe00 contains the address of the IPL Parameter Information
+ * block. Dump tools need IPIB for IPL after dump.
+ * Note: do not change the position of any fields in 0x0e00-0x0f00
+ */
+ __u32 ipib; /* 0x0e00 */
+ __u32 ipib_checksum; /* 0x0e04 */
+
+ /* Align to the top 1k of prefix area */
+ __u8 pad_0x0e08[0x1000-0x0e08]; /* 0x0e08 */
#else /* !__s390x__ */
- /* prefix area: defined by architecture */
- __u32 ccw1[2]; /* 0x000 */
- __u32 ccw2[4]; /* 0x008 */
- __u8 pad1[0x80-0x18]; /* 0x018 */
- __u32 ext_params; /* 0x080 */
- __u16 cpu_addr; /* 0x084 */
- __u16 ext_int_code; /* 0x086 */
- __u16 svc_ilc; /* 0x088 */
- __u16 svc_code; /* 0x08a */
- __u16 pgm_ilc; /* 0x08c */
- __u16 pgm_code; /* 0x08e */
- __u32 data_exc_code; /* 0x090 */
- __u16 mon_class_num; /* 0x094 */
- __u16 per_perc_atmid; /* 0x096 */
- addr_t per_address; /* 0x098 */
- __u8 exc_access_id; /* 0x0a0 */
- __u8 per_access_id; /* 0x0a1 */
- __u8 op_access_id; /* 0x0a2 */
- __u8 ar_access_id; /* 0x0a3 */
- __u8 pad2[0xA8-0xA4]; /* 0x0a4 */
- addr_t trans_exc_code; /* 0x0A0 */
- addr_t monitor_code; /* 0x09c */
- __u16 subchannel_id; /* 0x0b8 */
- __u16 subchannel_nr; /* 0x0ba */
- __u32 io_int_parm; /* 0x0bc */
- __u32 io_int_word; /* 0x0c0 */
- __u8 pad3[0xc8-0xc4]; /* 0x0c4 */
- __u32 stfl_fac_list; /* 0x0c8 */
- __u8 pad4[0xe8-0xcc]; /* 0x0cc */
- __u32 mcck_interruption_code[2]; /* 0x0e8 */
- __u8 pad5[0xf4-0xf0]; /* 0x0f0 */
- __u32 external_damage_code; /* 0x0f4 */
- addr_t failing_storage_address; /* 0x0f8 */
- __u8 pad6[0x120-0x100]; /* 0x100 */
- psw_t restart_old_psw; /* 0x120 */
- psw_t external_old_psw; /* 0x130 */
- psw_t svc_old_psw; /* 0x140 */
- psw_t program_old_psw; /* 0x150 */
- psw_t mcck_old_psw; /* 0x160 */
- psw_t io_old_psw; /* 0x170 */
- __u8 pad7[0x1a0-0x180]; /* 0x180 */
- psw_t restart_psw; /* 0x1a0 */
- psw_t external_new_psw; /* 0x1b0 */
- psw_t svc_new_psw; /* 0x1c0 */
- psw_t program_new_psw; /* 0x1d0 */
- psw_t mcck_new_psw; /* 0x1e0 */
- psw_t io_new_psw; /* 0x1f0 */
- psw_t return_psw; /* 0x200 */
- __u8 irb[64]; /* 0x210 */
- __u64 sync_enter_timer; /* 0x250 */
- __u64 async_enter_timer; /* 0x258 */
- __u64 exit_timer; /* 0x260 */
- __u64 user_timer; /* 0x268 */
- __u64 system_timer; /* 0x270 */
- __u64 steal_timer; /* 0x278 */
- __u64 last_update_timer; /* 0x280 */
- __u64 last_update_clock; /* 0x288 */
- psw_t return_mcck_psw; /* 0x290 */
- __u8 pad8[0xc00-0x2a0]; /* 0x2a0 */
- /* System info area */
- __u64 save_area[16]; /* 0xc00 */
- __u8 pad9[0xd40-0xc80]; /* 0xc80 */
- __u64 kernel_stack; /* 0xd40 */
- __u64 thread_info; /* 0xd48 */
- __u64 async_stack; /* 0xd50 */
- __u64 kernel_asce; /* 0xd58 */
- __u64 user_asce; /* 0xd60 */
- __u64 panic_stack; /* 0xd68 */
- __u64 user_exec_asce; /* 0xd70 */
- __u8 pad10[0xd80-0xd78]; /* 0xd78 */
- /* entry.S sensitive area start */
- struct cpuinfo_S390 cpu_data; /* 0xd80 */
- __u32 ipl_device; /* 0xdb8 */
- __u32 pad11; /* 0xdbc */
- /* entry.S sensitive area end */
-
- /* SMP info area: defined by DJB */
- __u64 clock_comparator; /* 0xdc0 */
- __u64 ext_call_fast; /* 0xdc8 */
- __u64 percpu_offset; /* 0xdd0 */
- __u64 current_task; /* 0xdd8 */
- __u32 softirq_pending; /* 0xde0 */
- __u32 pad_0x0de4; /* 0xde4 */
- __u64 int_clock; /* 0xde8 */
- __u8 pad12[0xe00-0xdf0]; /* 0xdf0 */
-
- /* 0xe00 is used as indicator for dump tools */
- /* whether the kernel died with panic() or not */
- __u32 panic_magic; /* 0xe00 */
+ /* 0x0000 - 0x01ff: defined by architecture */
+ __u32 ccw1[2]; /* 0x0000 */
+ __u32 ccw2[4]; /* 0x0008 */
+ __u8 pad_0x0018[0x0080-0x0018]; /* 0x0018 */
+ __u32 ext_params; /* 0x0080 */
+ __u16 cpu_addr; /* 0x0084 */
+ __u16 ext_int_code; /* 0x0086 */
+ __u16 svc_ilc; /* 0x0088 */
+ __u16 svc_code; /* 0x008a */
+ __u16 pgm_ilc; /* 0x008c */
+ __u16 pgm_code; /* 0x008e */
+ __u32 data_exc_code; /* 0x0090 */
+ __u16 mon_class_num; /* 0x0094 */
+ __u16 per_perc_atmid; /* 0x0096 */
+ addr_t per_address; /* 0x0098 */
+ __u8 exc_access_id; /* 0x00a0 */
+ __u8 per_access_id; /* 0x00a1 */
+ __u8 op_access_id; /* 0x00a2 */
+ __u8 ar_access_id; /* 0x00a3 */
+ __u8 pad_0x00a4[0x00a8-0x00a4]; /* 0x00a4 */
+ addr_t trans_exc_code; /* 0x00a8 */
+ addr_t monitor_code; /* 0x00b0 */
+ __u16 subchannel_id; /* 0x00b8 */
+ __u16 subchannel_nr; /* 0x00ba */
+ __u32 io_int_parm; /* 0x00bc */
+ __u32 io_int_word; /* 0x00c0 */
+ __u8 pad_0x00c4[0x00c8-0x00c4]; /* 0x00c4 */
+ __u32 stfl_fac_list; /* 0x00c8 */
+ __u8 pad_0x00cc[0x00e8-0x00cc]; /* 0x00cc */
+ __u32 mcck_interruption_code[2]; /* 0x00e8 */
+ __u8 pad_0x00f0[0x00f4-0x00f0]; /* 0x00f0 */
+ __u32 external_damage_code; /* 0x00f4 */
+ addr_t failing_storage_address; /* 0x00f8 */
+ __u8 pad_0x0100[0x0120-0x0100]; /* 0x0100 */
+ psw_t restart_old_psw; /* 0x0120 */
+ psw_t external_old_psw; /* 0x0130 */
+ psw_t svc_old_psw; /* 0x0140 */
+ psw_t program_old_psw; /* 0x0150 */
+ psw_t mcck_old_psw; /* 0x0160 */
+ psw_t io_old_psw; /* 0x0170 */
+ __u8 pad_0x0180[0x01a0-0x0180]; /* 0x0180 */
+ psw_t restart_psw; /* 0x01a0 */
+ psw_t external_new_psw; /* 0x01b0 */
+ psw_t svc_new_psw; /* 0x01c0 */
+ psw_t program_new_psw; /* 0x01d0 */
+ psw_t mcck_new_psw; /* 0x01e0 */
+ psw_t io_new_psw; /* 0x01f0 */
+
+ /* Entry/exit save area & return psws. */
+ __u64 save_area[16]; /* 0x0200 */
+ psw_t return_psw; /* 0x0280 */
+ psw_t return_mcck_psw; /* 0x0290 */
+
+ /* CPU accounting and timing values. */
+ __u64 sync_enter_timer; /* 0x02a0 */
+ __u64 async_enter_timer; /* 0x02a8 */
+ __u64 exit_timer; /* 0x02b0 */
+ __u64 user_timer; /* 0x02b8 */
+ __u64 system_timer; /* 0x02c0 */
+ __u64 steal_timer; /* 0x02c8 */
+ __u64 last_update_timer; /* 0x02d0 */
+ __u64 last_update_clock; /* 0x02d8 */
+
+ /* Current process. */
+ __u64 current_task; /* 0x02e0 */
+ __u64 thread_info; /* 0x02e8 */
+ __u64 kernel_stack; /* 0x02f0 */
+
+ /* Interrupt and panic stack. */
+ __u64 async_stack; /* 0x02f8 */
+ __u64 panic_stack; /* 0x0300 */
+
+ /* Address space pointer. */
+ __u64 kernel_asce; /* 0x0308 */
+ __u64 user_asce; /* 0x0310 */
+ __u64 user_exec_asce; /* 0x0318 */
+
+ /* SMP info area */
+ cpuid_t cpu_id; /* 0x0320 */
+ __u32 cpu_nr; /* 0x0328 */
+ __u32 softirq_pending; /* 0x032c */
+ __u64 percpu_offset; /* 0x0330 */
+ __u64 ext_call_fast; /* 0x0338 */
+ __u64 int_clock; /* 0x0340 */
+ __u64 clock_comparator; /* 0x0348 */
+ __u64 vdso_per_cpu_data; /* 0x0350 */
+ __u8 pad_0x0358[0x0380-0x0358]; /* 0x0358 */
+
+ /* Interrupt response block. */
+ __u8 irb[64]; /* 0x0380 */
/* Per cpu primary space access list */
- __u8 pad_0xe04[0xe38-0xe04]; /* 0xe04 */
- __u64 vdso_per_cpu_data; /* 0xe38 */
- __u32 paste[16]; /* 0xe40 */
-
- __u8 pad13[0x11b8-0xe80]; /* 0xe80 */
-
- /* 64 bit extparam used for pfault, diag 250 etc */
- __u64 ext_params2; /* 0x11B8 */
-
- __u8 pad14[0x1200-0x11C0]; /* 0x11C0 */
-
- /* System info area */
-
- __u64 floating_pt_save_area[16]; /* 0x1200 */
- __u64 gpregs_save_area[16]; /* 0x1280 */
- __u32 st_status_fixed_logout[4]; /* 0x1300 */
- __u8 pad15[0x1318-0x1310]; /* 0x1310 */
- __u32 prefixreg_save_area; /* 0x1318 */
- __u32 fpt_creg_save_area; /* 0x131c */
- __u8 pad16[0x1324-0x1320]; /* 0x1320 */
- __u32 tod_progreg_save_area; /* 0x1324 */
- __u32 cpu_timer_save_area[2]; /* 0x1328 */
- __u32 clock_comp_save_area[2]; /* 0x1330 */
- __u8 pad17[0x1340-0x1338]; /* 0x1338 */
- __u32 access_regs_save_area[16]; /* 0x1340 */
- __u64 cregs_save_area[16]; /* 0x1380 */
+ __u32 paste[16]; /* 0x03c0 */
+
+ __u8 pad_0x0400[0x0e00-0x0400]; /* 0x0400 */
+
+ /*
+ * 0xe00 contains the address of the IPL Parameter Information
+ * block. Dump tools need IPIB for IPL after dump.
+ * Note: do not change the position of any fields in 0x0e00-0x0f00
+ */
+ __u64 ipib; /* 0x0e00 */
+ __u32 ipib_checksum; /* 0x0e08 */
+ __u8 pad_0x0e0c[0x11b8-0x0e0c]; /* 0x0e0c */
+
+ /* 64 bit extparam used for pfault/diag 250: defined by architecture */
+ __u64 ext_params2; /* 0x11B8 */
+ __u8 pad_0x11c0[0x1200-0x11C0]; /* 0x11C0 */
+
+ /* CPU register save area: defined by architecture */
+ __u64 floating_pt_save_area[16]; /* 0x1200 */
+ __u64 gpregs_save_area[16]; /* 0x1280 */
+ __u32 st_status_fixed_logout[4]; /* 0x1300 */
+ __u8 pad_0x1310[0x1318-0x1310]; /* 0x1310 */
+ __u32 prefixreg_save_area; /* 0x1318 */
+ __u32 fpt_creg_save_area; /* 0x131c */
+ __u8 pad_0x1320[0x1324-0x1320]; /* 0x1320 */
+ __u32 tod_progreg_save_area; /* 0x1324 */
+ __u32 cpu_timer_save_area[2]; /* 0x1328 */
+ __u32 clock_comp_save_area[2]; /* 0x1330 */
+ __u8 pad_0x1338[0x1340-0x1338]; /* 0x1338 */
+ __u32 access_regs_save_area[16]; /* 0x1340 */
+ __u64 cregs_save_area[16]; /* 0x1380 */
/* align to the top of the prefix area */
-
- __u8 pad18[0x2000-0x1400]; /* 0x1400 */
+ __u8 pad_0x1400[0x2000-0x1400]; /* 0x1400 */
#endif /* !__s390x__ */
} __attribute__((packed)); /* End structure*/
return address;
}
-#define __PANIC_MAGIC 0xDEADC0DE
-
#endif
#endif
static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
struct task_struct *tsk)
{
- cpu_set(smp_processor_id(), next->cpu_vm_mask);
+ cpumask_set_cpu(smp_processor_id(), mm_cpumask(next));
update_mm(next, tsk);
}
--- /dev/null
+/*
+ * Machine check handler definitions
+ *
+ * Copyright IBM Corp. 2000,2009
+ * Author(s): Ingo Adlung <adlung@de.ibm.com>,
+ * Martin Schwidefsky <schwidefsky@de.ibm.com>,
+ * Cornelia Huck <cornelia.huck@de.ibm.com>,
+ * Heiko Carstens <heiko.carstens@de.ibm.com>,
+ */
+
+#ifndef _ASM_S390_NMI_H
+#define _ASM_S390_NMI_H
+
+#include <linux/types.h>
+
+struct mci {
+ __u32 sd : 1; /* 00 system damage */
+ __u32 pd : 1; /* 01 instruction-processing damage */
+ __u32 sr : 1; /* 02 system recovery */
+ __u32 : 1; /* 03 */
+ __u32 cd : 1; /* 04 timing-facility damage */
+ __u32 ed : 1; /* 05 external damage */
+ __u32 : 1; /* 06 */
+ __u32 dg : 1; /* 07 degradation */
+ __u32 w : 1; /* 08 warning pending */
+ __u32 cp : 1; /* 09 channel-report pending */
+ __u32 sp : 1; /* 10 service-processor damage */
+ __u32 ck : 1; /* 11 channel-subsystem damage */
+ __u32 : 2; /* 12-13 */
+ __u32 b : 1; /* 14 backed up */
+ __u32 : 1; /* 15 */
+ __u32 se : 1; /* 16 storage error uncorrected */
+ __u32 sc : 1; /* 17 storage error corrected */
+ __u32 ke : 1; /* 18 storage-key error uncorrected */
+ __u32 ds : 1; /* 19 storage degradation */
+ __u32 wp : 1; /* 20 psw mwp validity */
+ __u32 ms : 1; /* 21 psw mask and key validity */
+ __u32 pm : 1; /* 22 psw program mask and cc validity */
+ __u32 ia : 1; /* 23 psw instruction address validity */
+ __u32 fa : 1; /* 24 failing storage address validity */
+ __u32 : 1; /* 25 */
+ __u32 ec : 1; /* 26 external damage code validity */
+ __u32 fp : 1; /* 27 floating point register validity */
+ __u32 gr : 1; /* 28 general register validity */
+ __u32 cr : 1; /* 29 control register validity */
+ __u32 : 1; /* 30 */
+ __u32 st : 1; /* 31 storage logical validity */
+ __u32 ie : 1; /* 32 indirect storage error */
+ __u32 ar : 1; /* 33 access register validity */
+ __u32 da : 1; /* 34 delayed access exception */
+ __u32 : 7; /* 35-41 */
+ __u32 pr : 1; /* 42 tod programmable register validity */
+ __u32 fc : 1; /* 43 fp control register validity */
+ __u32 ap : 1; /* 44 ancillary report */
+ __u32 : 1; /* 45 */
+ __u32 ct : 1; /* 46 cpu timer validity */
+ __u32 cc : 1; /* 47 clock comparator validity */
+ __u32 : 16; /* 47-63 */
+};
+
+struct pt_regs;
+
+extern void s390_handle_mcck(void);
+extern void s390_do_machine_check(struct pt_regs *regs);
+
+#endif /* _ASM_S390_NMI_H */
asm volatile("stidp 0(%1)" : "=m" (*ptr) : "a" (ptr));
}
-struct cpuinfo_S390
-{
- cpuid_t cpu_id;
- __u16 cpu_addr;
- __u16 cpu_nr;
- unsigned long loops_per_jiffy;
- unsigned long *pgd_quick;
-#ifdef __s390x__
- unsigned long *pmd_quick;
-#endif /* __s390x__ */
- unsigned long *pte_quick;
- unsigned long pgtable_cache_sz;
-};
-
extern void s390_adjust_jiffies(void);
-extern void print_cpu_info(struct cpuinfo_S390 *);
+extern void print_cpu_info(void);
extern int get_cpu_capability(unsigned int *);
/*
#define NUM_CRS 16
#define NUM_ACRS 16
+#define NUM_CR_WORDS 3
+
#define FPR_SIZE 8
#define FPC_SIZE 4
#define FPC_PAD_SIZE 4 /* gcc insists on aligning the fpregs */
*/
typedef struct
{
- unsigned long cr[3];
+ unsigned long cr[NUM_CR_WORDS];
} per_cr_words;
#define PER_EM_MASK 0xE8000000UL
int, int, unsigned long);
/* qdio errors reported to the upper-layer program */
+#define QDIO_ERROR_SIGA_TARGET 0x02
#define QDIO_ERROR_SIGA_ACCESS_EXCEPTION 0x10
#define QDIO_ERROR_SIGA_BUSY 0x20
#define QDIO_ERROR_ACTIVATE_CHECK_CONDITION 0x40
#define PROC_CHANGE_PENALTY 20 /* Schedule penalty */
-#define raw_smp_processor_id() (S390_lowcore.cpu_data.cpu_nr)
-
-static inline __u16 hard_smp_processor_id(void)
-{
- return stap();
-}
+#define raw_smp_processor_id() (S390_lowcore.cpu_nr)
/*
* returns 1 if cpu is in stopped/check stopped state or not operational
static inline char *strcpy(char *dst, const char *src)
{
+#if __GNUC__ < 4
register int r0 asm("0") = 0;
char *ret = dst;
: "+&a" (dst), "+&a" (src) : "d" (r0)
: "cc", "memory");
return ret;
+#else
+ return __builtin_strcpy(dst, src);
+#endif
}
static inline size_t strlen(const char *s)
{
+#if __GNUC__ < 4
register unsigned long r0 asm("0") = 0;
const char *tmp = s;
" jo 0b"
: "+d" (r0), "+a" (tmp) : : "cc");
return r0 - (unsigned long) s;
+#else
+ return __builtin_strlen(s);
+#endif
}
static inline size_t strnlen(const char * s, size_t n)
: "+a" (end), "+a" (tmp) : "d" (r0) : "cc");
return end - s;
}
-
+#else /* IN_ARCH_STRING_C */
+void *memchr(const void * s, int c, size_t n);
+void *memscan(void *s, int c, size_t n);
+char *strcat(char *dst, const char *src);
+char *strcpy(char *dst, const char *src);
+size_t strlen(const char *s);
+size_t strnlen(const char * s, size_t n);
#endif /* !IN_ARCH_STRING_C */
#endif /* __KERNEL__ */
char reserved_1[24];
} vm[8];
+ char reserved_544[3552];
};
static inline int stsi(void *sysinfo, int fc, int sel1, int sel2)
* If the process only ran on the local cpu, do a local flush.
*/
local_cpumask = cpumask_of_cpu(smp_processor_id());
- if (cpus_equal(mm->cpu_vm_mask, local_cpumask))
+ if (cpumask_equal(mm_cpumask(mm), &local_cpumask))
__tlb_flush_local();
else
__tlb_flush_global();
static inline void __tlb_flush_mm(struct mm_struct * mm)
{
- if (unlikely(cpus_empty(mm->cpu_vm_mask)))
+ if (unlikely(cpumask_empty(mm_cpumask(mm))))
return;
/*
* If the machine has IDTE we prefer to do a per mm flush
#define mc_capable() (1)
-cpumask_t cpu_coregroup_map(unsigned int cpu);
const struct cpumask *cpu_coregroup_mask(unsigned int cpu);
extern cpumask_t cpu_core_map[NR_CPUS];
__u16 day;
} __attribute__ ((packed));
-struct vtoc_volume_label
+struct vtoc_volume_label_cdl
{
char volkey[4]; /* volume key = volume label */
char vollbl[4]; /* volume label */
char res3[29]; /* reserved */
} __attribute__ ((packed));
+struct vtoc_volume_label_ldl {
+ char vollbl[4]; /* volume label */
+ char volid[6]; /* volume identifier */
+ char res3[69]; /* reserved */
+ char ldl_version; /* version number, valid for ldl format */
+ __u64 formatted_blocks; /* valid when ldl_version >= f2 */
+} __attribute__ ((packed));
+
struct vtoc_extent
{
__u8 typeind; /* extent type indicator */
char res2[10]; /* reserved */
__u8 DS4EFLVL; /* extended free-space management level */
struct vtoc_cchhb DS4EFPTR; /* pointer to extended free-space info */
- char res3[9]; /* reserved */
+ char res3; /* reserved */
+ __u32 DS4DCYL; /* number of logical cyls */
+ char res4[2]; /* reserved */
+ __u8 DS4DEVF2; /* device flags */
+ char res5; /* reserved */
} __attribute__ ((packed));
struct vtoc_ds5ext
#
CFLAGS_ptrace.o += -DUTS_MACHINE='"$(UTS_MACHINE)"'
+CFLAGS_sysinfo.o += -Iinclude/math-emu -Iarch/s390/math-emu -w
+
obj-y := bitmap.o traps.o time.o process.o base.o early.o setup.o \
processor.o sys_s390.o ptrace.o signal.o cpcmd.o ebcdic.o \
s390_ext.o debug.o irq.o ipl.o dis.o diag.o mem_detect.o \
- vdso.o vtime.o
+ vdso.o vtime.o sysinfo.o nmi.o
obj-y += $(if $(CONFIG_64BIT),entry64.o,entry.o)
obj-y += $(if $(CONFIG_64BIT),reipl64.o,reipl.o)
+++ /dev/null
-/*
- * arch/s390/kernel/bitmap.S
- * Bitmaps for set_bit, clear_bit, test_and_set_bit, ...
- * See include/asm-s390/{bitops.h|posix_types.h} for details
- *
- * S390 version
- * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
- * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com),
- */
-
- .globl _oi_bitmap
-_oi_bitmap:
- .byte 0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80
-
- .globl _ni_bitmap
-_ni_bitmap:
- .byte 0xFE,0xFD,0xFB,0xF7,0xEF,0xDF,0xBF,0x7F
-
- .globl _zb_findmap
-_zb_findmap:
- .byte 0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,4
- .byte 0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,5
- .byte 0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,4
- .byte 0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,6
- .byte 0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,4
- .byte 0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,5
- .byte 0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,4
- .byte 0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,7
- .byte 0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,4
- .byte 0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,5
- .byte 0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,4
- .byte 0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,6
- .byte 0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,4
- .byte 0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,5
- .byte 0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,4
- .byte 0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,8
-
- .globl _sb_findmap
-_sb_findmap:
- .byte 8,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0
- .byte 4,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0
- .byte 5,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0
- .byte 4,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0
- .byte 6,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0
- .byte 4,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0
- .byte 5,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0
- .byte 4,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0
- .byte 7,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0
- .byte 4,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0
- .byte 5,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0
- .byte 4,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0
- .byte 6,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0
- .byte 4,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0
- .byte 5,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0
- .byte 4,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0
-
--- /dev/null
+/*
+ * Bitmaps for set_bit, clear_bit, test_and_set_bit, ...
+ * See include/asm/{bitops.h|posix_types.h} for details
+ *
+ * Copyright IBM Corp. 1999,2009
+ * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>,
+ */
+
+#include <linux/bitops.h>
+#include <linux/module.h>
+
+const char _oi_bitmap[] = { 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80 };
+EXPORT_SYMBOL(_oi_bitmap);
+
+const char _ni_bitmap[] = { 0xfe, 0xfd, 0xfb, 0xf7, 0xef, 0xdf, 0xbf, 0x7f };
+EXPORT_SYMBOL(_ni_bitmap);
+
+const char _zb_findmap[] = {
+ 0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,4,
+ 0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,5,
+ 0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,4,
+ 0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,6,
+ 0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,4,
+ 0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,5,
+ 0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,4,
+ 0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,7,
+ 0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,4,
+ 0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,5,
+ 0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,4,
+ 0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,6,
+ 0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,4,
+ 0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,5,
+ 0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,4,
+ 0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,8 };
+EXPORT_SYMBOL(_zb_findmap);
+
+const char _sb_findmap[] = {
+ 8,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,
+ 4,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,
+ 5,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,
+ 4,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,
+ 6,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,
+ 4,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,
+ 5,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,
+ 4,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,
+ 7,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,
+ 4,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,
+ 5,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,
+ 4,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,
+ 6,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,
+ 4,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,
+ 5,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,
+ 4,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0 };
+EXPORT_SYMBOL(_sb_findmap);
#ifndef _PTRACE32_H
#define _PTRACE32_H
+#include <asm/ptrace.h> /* needed for NUM_CR_WORDS */
#include "compat_linux.h" /* needed for psw_compat_t */
typedef struct {
- __u32 cr[3];
+ __u32 cr[NUM_CR_WORDS];
} per_cr_words32;
typedef struct {
static int
debug_open(struct inode *inode, struct file *file)
{
- int i = 0, rc = 0;
+ int i, rc = 0;
file_private_info_t *p_info;
debug_info_t *debug_info, *debug_info_snapshot;
p_info = kmalloc(sizeof(file_private_info_t),
GFP_KERNEL);
if(!p_info){
- if(debug_info_snapshot)
- debug_info_free(debug_info_snapshot);
+ debug_info_free(debug_info_snapshot);
rc = -ENOMEM;
goto out;
}
if ((uid != 0) || (gid != 0))
pr_warning("Root becomes the owner of all s390dbf files "
"in sysfs\n");
- if (!initialized)
- BUG();
+ BUG_ON(!initialized);
mutex_lock(&debug_mutex);
/* create new debug_info */
else {
debugfs_remove(id->debugfs_entries[i]);
id->views[i] = NULL;
- rc = 0;
}
spin_unlock_irqrestore(&id->lock, flags);
out:
* Heiko Carstens <heiko.carstens@de.ibm.com>
*/
+#include <linux/compiler.h>
#include <linux/init.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <asm/processor.h>
#include <asm/sections.h>
#include <asm/setup.h>
+#include <asm/sysinfo.h>
#include <asm/cpcmd.h>
#include <asm/sclp.h>
#include "entry.h"
page_set_storage_key(init_pfn << PAGE_SHIFT, PAGE_DEFAULT_KEY);
}
+static __initdata struct sysinfo_3_2_2 vmms __aligned(PAGE_SIZE);
+
static noinline __init void detect_machine_type(void)
{
- struct cpuinfo_S390 *cpuinfo = &S390_lowcore.cpu_data;
-
- get_cpu_id(&S390_lowcore.cpu_data.cpu_id);
-
- /* Running under z/VM ? */
- if (cpuinfo->cpu_id.version == 0xff)
- machine_flags |= MACHINE_FLAG_VM;
+ /* No VM information? Looks like LPAR */
+ if (stsi(&vmms, 3, 2, 2) == -ENOSYS)
+ return;
+ if (!vmms.count)
+ return;
- /* Running under KVM ? */
- if (cpuinfo->cpu_id.version == 0xfe)
+ /* Running under KVM? If not we assume z/VM */
+ if (!memcmp(vmms.vm[0].cpi, "\xd2\xe5\xd4", 3))
machine_flags |= MACHINE_FLAG_KVM;
+ else
+ machine_flags |= MACHINE_FLAG_VM;
}
static __init void early_pgm_check_handler(void)
/* copy arch command line */
strlcpy(boot_command_line, COMMAND_LINE, ARCH_COMMAND_LINE_SIZE);
- boot_command_line[ARCH_COMMAND_LINE_SIZE - 1] = 0;
/* append IPL PARM data to the boot command line */
if (MACHINE_IS_VM) {
.org 0x10000
startup:basr %r13,0 # get base
.LPG0:
+ xc 0x200(256),0x200 # partially clear lowcore
+ xc 0x300(256),0x300
#ifndef CONFIG_MARCH_G5
# check processor version against MARCH_{G5,Z900,Z990,Z9_109,Z10}
lctl %c0,%c15,.Lctl-.LPG1(%r13) # load control registers
l %r12,.Lparmaddr-.LPG1(%r13) # pointer to parameter area
# move IPL device to lowcore
- mvc __LC_IPLDEV(4),IPL_DEVICE-PARMAREA(%r12)
#
# Setup stack
#
lctlg %c0,%c15,.Lctl-.LPG1(%r13) # load control registers
lg %r12,.Lparmaddr-.LPG1(%r13) # pointer to parameter area
# move IPL device to lowcore
- mvc __LC_IPLDEV(4),IPL_DEVICE+4-PARMAREA(%r12)
lghi %r0,__LC_PASTE
stg %r0,__LC_VDSO_PER_CPU
#
#include <asm/ebcdic.h>
#include <asm/reset.h>
#include <asm/sclp.h>
-#include <asm/setup.h>
+#include <asm/checksum.h>
#define IPL_PARM_BLOCK_VERSION 0
};
/*
- * Five shutdown action types are supported:
+ * The following shutdown action types are supported:
*/
#define SHUTDOWN_ACTION_IPL_STR "ipl"
#define SHUTDOWN_ACTION_REIPL_STR "reipl"
#define SHUTDOWN_ACTION_DUMP_STR "dump"
#define SHUTDOWN_ACTION_VMCMD_STR "vmcmd"
#define SHUTDOWN_ACTION_STOP_STR "stop"
+#define SHUTDOWN_ACTION_DUMP_REIPL_STR "dump_reipl"
struct shutdown_action {
char *name;
static struct ipl_parameter_block *reipl_block_fcp;
static struct ipl_parameter_block *reipl_block_ccw;
static struct ipl_parameter_block *reipl_block_nss;
+static struct ipl_parameter_block *reipl_block_actual;
static int dump_capabilities = DUMP_TYPE_NONE;
static enum dump_type dump_type = DUMP_TYPE_NONE;
reipl_method = REIPL_METHOD_CCW_VM;
else
reipl_method = REIPL_METHOD_CCW_CIO;
+ reipl_block_actual = reipl_block_ccw;
break;
case IPL_TYPE_FCP:
if (diag308_set_works)
reipl_method = REIPL_METHOD_FCP_RO_VM;
else
reipl_method = REIPL_METHOD_FCP_RO_DIAG;
+ reipl_block_actual = reipl_block_fcp;
break;
case IPL_TYPE_FCP_DUMP:
reipl_method = REIPL_METHOD_FCP_DUMP;
reipl_method = REIPL_METHOD_NSS_DIAG;
else
reipl_method = REIPL_METHOD_NSS;
+ reipl_block_actual = reipl_block_nss;
break;
case IPL_TYPE_UNKNOWN:
reipl_method = REIPL_METHOD_DEFAULT;
diag308(DIAG308_IPL, NULL);
break;
case REIPL_METHOD_FCP_DUMP:
- default:
break;
}
disabled_wait((unsigned long) __builtin_return_address(0));
{
int rc;
- if ((!diag308_set_works) && (ipl_info.type != IPL_TYPE_FCP))
- return 0;
- if ((!diag308_set_works) && (ipl_info.type == IPL_TYPE_FCP))
- make_attrs_ro(reipl_fcp_attrs);
+ if (!diag308_set_works) {
+ if (ipl_info.type == IPL_TYPE_FCP)
+ make_attrs_ro(reipl_fcp_attrs);
+ else
+ return 0;
+ }
reipl_block_fcp = (void *) get_zeroed_page(GFP_KERNEL);
if (!reipl_block_fcp)
diag308(DIAG308_DUMP, NULL);
break;
case DUMP_METHOD_NONE:
- default:
return;
}
printk(KERN_EMERG "Dump failed!\n");
.init = dump_init,
};
+static void dump_reipl_run(struct shutdown_trigger *trigger)
+{
+ preempt_disable();
+ /*
+ * Bypass dynamic address translation (DAT) when storing IPL parameter
+ * information block address and checksum into the prefix area
+ * (corresponding to absolute addresses 0-8191).
+ * When enhanced DAT applies and the STE format control in one,
+ * the absolute address is formed without prefixing. In this case a
+ * normal store (stg/st) into the prefix area would no more match to
+ * absolute addresses 0-8191.
+ */
+#ifdef CONFIG_64BIT
+ asm volatile("sturg %0,%1"
+ :: "a" ((unsigned long) reipl_block_actual),
+ "a" (&lowcore_ptr[smp_processor_id()]->ipib));
+#else
+ asm volatile("stura %0,%1"
+ :: "a" ((unsigned long) reipl_block_actual),
+ "a" (&lowcore_ptr[smp_processor_id()]->ipib));
+#endif
+ asm volatile("stura %0,%1"
+ :: "a" (csum_partial(reipl_block_actual,
+ reipl_block_actual->hdr.len, 0)),
+ "a" (&lowcore_ptr[smp_processor_id()]->ipib_checksum));
+ preempt_enable();
+ dump_run(trigger);
+}
+
+static int __init dump_reipl_init(void)
+{
+ if (!diag308_set_works)
+ return -EOPNOTSUPP;
+ else
+ return 0;
+}
+
+static struct shutdown_action __refdata dump_reipl_action = {
+ .name = SHUTDOWN_ACTION_DUMP_REIPL_STR,
+ .fn = dump_reipl_run,
+ .init = dump_reipl_init,
+};
+
/*
* vmcmd shutdown action: Trigger vm command on shutdown.
*/
/* action list */
static struct shutdown_action *shutdown_actions_list[] = {
- &ipl_action, &reipl_action, &dump_action, &vmcmd_action, &stop_action};
+ &ipl_action, &reipl_action, &dump_reipl_action, &dump_action,
+ &vmcmd_action, &stop_action};
#define SHUTDOWN_ACTIONS_COUNT (sizeof(shutdown_actions_list) / sizeof(void *))
/*
size_t len)
{
int i;
+
for (i = 0; i < SHUTDOWN_ACTIONS_COUNT; i++) {
if (!shutdown_actions_list[i])
continue;
- if (strncmp(buf, shutdown_actions_list[i]->name,
- strlen(shutdown_actions_list[i]->name)) == 0) {
+ if (sysfs_streq(buf, shutdown_actions_list[i]->name)) {
trigger->action = shutdown_actions_list[i];
return len;
}
static struct notifier_block on_panic_nb = {
.notifier_call = on_panic_notify,
- .priority = 0,
+ .priority = INT_MIN,
};
void __init setup_ipl(void)
sizeof(ipl_info.data.nss.name));
break;
case IPL_TYPE_UNKNOWN:
- default:
/* We have no info to copy */
break;
}
info->plt_initialized = 1;
}
if (r_type == R_390_PLTOFF16 ||
- r_type == R_390_PLTOFF32
- || r_type == R_390_PLTOFF64
- )
+ r_type == R_390_PLTOFF32 ||
+ r_type == R_390_PLTOFF64)
val = me->arch.plt_offset - me->arch.got_offset +
info->plt_offset + rela->r_addend;
- else
- val = (Elf_Addr) me->module_core +
- me->arch.plt_offset + info->plt_offset +
- rela->r_addend - loc;
+ else {
+ if (!((r_type == R_390_PLT16DBL &&
+ val - loc + 0xffffUL < 0x1ffffeUL) ||
+ (r_type == R_390_PLT32DBL &&
+ val - loc + 0xffffffffULL < 0x1fffffffeULL)))
+ val = (Elf_Addr) me->module_core +
+ me->arch.plt_offset +
+ info->plt_offset;
+ val += rela->r_addend - loc;
+ }
if (r_type == R_390_PLT16DBL)
*(unsigned short *) loc = val >> 1;
else if (r_type == R_390_PLTOFF16)
/*
- * drivers/s390/s390mach.c
- * S/390 machine check handler
+ * Machine check handler
*
- * Copyright IBM Corp. 2000,2008
- * Author(s): Ingo Adlung (adlung@de.ibm.com)
- * Martin Schwidefsky (schwidefsky@de.ibm.com)
- * Cornelia Huck <cornelia.huck@de.ibm.com>
+ * Copyright IBM Corp. 2000,2009
+ * Author(s): Ingo Adlung <adlung@de.ibm.com>,
+ * Martin Schwidefsky <schwidefsky@de.ibm.com>,
+ * Cornelia Huck <cornelia.huck@de.ibm.com>,
+ * Heiko Carstens <heiko.carstens@de.ibm.com>,
*/
#include <linux/init.h>
-#include <linux/sched.h>
#include <linux/errno.h>
-#include <linux/workqueue.h>
#include <linux/time.h>
-#include <linux/device.h>
-#include <linux/kthread.h>
-#include <asm/etr.h>
+#include <linux/module.h>
#include <asm/lowcore.h>
-#include <asm/cio.h>
+#include <asm/smp.h>
+#include <asm/etr.h>
#include <asm/cpu.h>
-#include "s390mach.h"
-
-static struct semaphore m_sem;
-
-static NORET_TYPE void
-s390_handle_damage(char *msg)
-{
-#ifdef CONFIG_SMP
- smp_send_stop();
-#endif
- disabled_wait((unsigned long) __builtin_return_address(0));
- for(;;);
-}
-
-static crw_handler_t crw_handlers[NR_RSCS];
-
-/**
- * s390_register_crw_handler() - register a channel report word handler
- * @rsc: reporting source code to handle
- * @handler: handler to be registered
- *
- * Returns %0 on success and a negative error value otherwise.
- */
-int s390_register_crw_handler(int rsc, crw_handler_t handler)
-{
- if ((rsc < 0) || (rsc >= NR_RSCS))
- return -EINVAL;
- if (!cmpxchg(&crw_handlers[rsc], NULL, handler))
- return 0;
- return -EBUSY;
-}
-
-/**
- * s390_unregister_crw_handler() - unregister a channel report word handler
- * @rsc: reporting source code to handle
- */
-void s390_unregister_crw_handler(int rsc)
-{
- if ((rsc < 0) || (rsc >= NR_RSCS))
- return;
- xchg(&crw_handlers[rsc], NULL);
- synchronize_sched();
-}
-
-/*
- * Retrieve CRWs and call function to handle event.
- */
-static int s390_collect_crw_info(void *param)
-{
- struct crw crw[2];
- int ccode;
- struct semaphore *sem;
- unsigned int chain;
- int ignore;
-
- sem = (struct semaphore *)param;
-repeat:
- ignore = down_interruptible(sem);
- chain = 0;
- while (1) {
- if (unlikely(chain > 1)) {
- struct crw tmp_crw;
-
- printk(KERN_WARNING"%s: Code does not support more "
- "than two chained crws; please report to "
- "linux390@de.ibm.com!\n", __func__);
- ccode = stcrw(&tmp_crw);
- printk(KERN_WARNING"%s: crw reports slct=%d, oflw=%d, "
- "chn=%d, rsc=%X, anc=%d, erc=%X, rsid=%X\n",
- __func__, tmp_crw.slct, tmp_crw.oflw,
- tmp_crw.chn, tmp_crw.rsc, tmp_crw.anc,
- tmp_crw.erc, tmp_crw.rsid);
- printk(KERN_WARNING"%s: This was crw number %x in the "
- "chain\n", __func__, chain);
- if (ccode != 0)
- break;
- chain = tmp_crw.chn ? chain + 1 : 0;
- continue;
- }
- ccode = stcrw(&crw[chain]);
- if (ccode != 0)
- break;
- printk(KERN_DEBUG "crw_info : CRW reports slct=%d, oflw=%d, "
- "chn=%d, rsc=%X, anc=%d, erc=%X, rsid=%X\n",
- crw[chain].slct, crw[chain].oflw, crw[chain].chn,
- crw[chain].rsc, crw[chain].anc, crw[chain].erc,
- crw[chain].rsid);
- /* Check for overflows. */
- if (crw[chain].oflw) {
- int i;
-
- pr_debug("%s: crw overflow detected!\n", __func__);
- for (i = 0; i < NR_RSCS; i++) {
- if (crw_handlers[i])
- crw_handlers[i](NULL, NULL, 1);
- }
- chain = 0;
- continue;
- }
- if (crw[0].chn && !chain) {
- chain++;
- continue;
- }
- if (crw_handlers[crw[chain].rsc])
- crw_handlers[crw[chain].rsc](&crw[0],
- chain ? &crw[1] : NULL,
- 0);
- /* chain is always 0 or 1 here. */
- chain = crw[chain].chn ? chain + 1 : 0;
- }
- goto repeat;
- return 0;
-}
+#include <asm/nmi.h>
+#include <asm/crw.h>
struct mcck_struct {
int kill_task;
static DEFINE_PER_CPU(struct mcck_struct, cpu_mcck);
+static NORET_TYPE void s390_handle_damage(char *msg)
+{
+ smp_send_stop();
+ disabled_wait((unsigned long) __builtin_return_address(0));
+ while (1);
+}
+
/*
* Main machine check handler function. Will be called with interrupts enabled
* or disabled and machine checks enabled or disabled.
*/
-void
-s390_handle_mcck(void)
+void s390_handle_mcck(void)
{
unsigned long flags;
struct mcck_struct mcck;
local_irq_restore(flags);
if (mcck.channel_report)
- up(&m_sem);
-
-#ifdef CONFIG_MACHCHK_WARNING
-/*
- * The warning may remain for a prolonged period on the bare iron.
- * (actually till the machine is powered off, or until the problem is gone)
- * So we just stop listening for the WARNING MCH and prevent continuously
- * being interrupted. One caveat is however, that we must do this per
- * processor and cannot use the smp version of ctl_clear_bit().
- * On VM we only get one interrupt per virtally presented machinecheck.
- * Though one suffices, we may get one interrupt per (virtual) processor.
- */
+ crw_handle_channel_report();
+ /*
+ * A warning may remain for a prolonged period on the bare iron.
+ * (actually until the machine is powered off, or the problem is gone)
+ * So we just stop listening for the WARNING MCH and avoid continuously
+ * being interrupted. One caveat is however, that we must do this per
+ * processor and cannot use the smp version of ctl_clear_bit().
+ * On VM we only get one interrupt per virtally presented machinecheck.
+ * Though one suffices, we may get one interrupt per (virtual) cpu.
+ */
if (mcck.warning) { /* WARNING pending ? */
static int mchchk_wng_posted = 0;
- /*
- * Use single machine clear, as we cannot handle smp right now
- */
+
+ /* Use single cpu clear, as we cannot handle smp here. */
__ctl_clear_bit(14, 24); /* Disable WARNING MCH */
if (xchg(&mchchk_wng_posted, 1) == 0)
kill_cad_pid(SIGPWR, 1);
}
-#endif
-
if (mcck.kill_task) {
local_irq_enable();
printk(KERN_EMERG "mcck: Terminating task because of machine "
* returns 0 if all registers could be validated
* returns 1 otherwise
*/
-static int
-s390_revalidate_registers(struct mci *mci)
+static int notrace s390_revalidate_registers(struct mci *mci)
{
int kill_task;
u64 tmpclock;
kill_task = 0;
zero = 0;
- /* General purpose registers */
- if (!mci->gr)
+
+ if (!mci->gr) {
/*
* General purpose registers couldn't be restored and have
* unknown contents. Process needs to be terminated.
*/
kill_task = 1;
-
- /* Revalidate floating point registers */
- if (!mci->fp)
+ }
+ if (!mci->fp) {
/*
* Floating point registers can't be restored and
* therefore the process needs to be terminated.
*/
kill_task = 1;
-
+ }
#ifndef CONFIG_64BIT
asm volatile(
" ld 0,0(%0)\n"
fpt_creg_save_area = &S390_lowcore.fpt_creg_save_area;
#else
fpt_save_area = (void *) S390_lowcore.extended_save_area_addr;
- fpt_creg_save_area = fpt_save_area+128;
+ fpt_creg_save_area = fpt_save_area + 128;
#endif
- /* Floating point control register */
if (!mci->fc) {
/*
* Floating point control register can't be restored.
" ld 15,120(%0)\n"
: : "a" (fpt_save_area));
}
-
/* Revalidate access registers */
asm volatile(
" lam 0,15,0(%0)"
: : "a" (&S390_lowcore.access_regs_save_area));
- if (!mci->ar)
+ if (!mci->ar) {
/*
* Access registers have unknown contents.
* Terminating task.
*/
kill_task = 1;
-
+ }
/* Revalidate control registers */
- if (!mci->cr)
+ if (!mci->cr) {
/*
* Control registers have unknown contents.
* Can't recover and therefore stopping machine.
*/
s390_handle_damage("invalid control registers.");
- else
+ } else {
#ifdef CONFIG_64BIT
asm volatile(
" lctlg 0,15,0(%0)"
" lctl 0,15,0(%0)"
: : "a" (&S390_lowcore.cregs_save_area));
#endif
-
+ }
/*
* We don't even try to revalidate the TOD register, since we simply
* can't write something sensible into that register.
*/
-
#ifdef CONFIG_64BIT
/*
* See if we can revalidate the TOD programmable register with its
: : "a" (&S390_lowcore.tod_progreg_save_area)
: "0", "cc");
#endif
-
/* Revalidate clock comparator register */
asm volatile(
" stck 0(%1)\n"
#define MAX_IPD_COUNT 29
#define MAX_IPD_TIME (5 * 60 * USEC_PER_SEC) /* 5 minutes */
+#define ED_STP_ISLAND 6 /* External damage STP island check */
+#define ED_STP_SYNC 7 /* External damage STP sync check */
+#define ED_ETR_SYNC 12 /* External damage ETR sync check */
+#define ED_ETR_SWITCH 13 /* External damage ETR switch to local */
+
/*
* machine check handler.
*/
-void
-s390_do_machine_check(struct pt_regs *regs)
+void notrace s390_do_machine_check(struct pt_regs *regs)
{
+ static int ipd_count;
static DEFINE_SPINLOCK(ipd_lock);
static unsigned long long last_ipd;
- static int ipd_count;
+ struct mcck_struct *mcck;
unsigned long long tmp;
struct mci *mci;
- struct mcck_struct *mcck;
int umode;
lockdep_off();
-
s390_idle_check();
mci = (struct mci *) &S390_lowcore.mcck_interruption_code;
mcck = &__get_cpu_var(cpu_mcck);
umode = user_mode(regs);
- if (mci->sd)
+ if (mci->sd) {
/* System damage -> stopping machine */
s390_handle_damage("received system damage machine check.");
-
+ }
if (mci->pd) {
if (mci->b) {
/* Processing backup -> verify if we can survive this */
* Nullifying exigent condition, therefore we might
* retry this instruction.
*/
-
spin_lock(&ipd_lock);
-
tmp = get_clock();
-
if (((tmp - last_ipd) >> 12) < MAX_IPD_TIME)
ipd_count++;
else
ipd_count = 1;
-
last_ipd = tmp;
-
if (ipd_count == MAX_IPD_COUNT)
s390_handle_damage("too many ipd retries.");
-
spin_unlock(&ipd_lock);
- }
- else {
+ } else {
/* Processing damage -> stopping machine */
s390_handle_damage("received instruction processing "
"damage machine check.");
mcck->kill_task = 1;
mcck->mcck_code = *(unsigned long long *) mci;
set_thread_flag(TIF_MCCK_PENDING);
- }
- else
+ } else {
/*
* Couldn't restore all register contents while in
* kernel mode -> stopping machine.
*/
s390_handle_damage("unable to revalidate registers.");
+ }
}
-
if (mci->cd) {
/* Timing facility damage */
s390_handle_damage("TOD clock damaged");
}
-
if (mci->ed && mci->ec) {
/* External damage */
if (S390_lowcore.external_damage_code & (1U << ED_ETR_SYNC))
if (S390_lowcore.external_damage_code & (1U << ED_STP_ISLAND))
stp_island_check();
}
-
if (mci->se)
/* Storage error uncorrected */
s390_handle_damage("received storage error uncorrected "
"machine check.");
-
if (mci->ke)
/* Storage key-error uncorrected */
s390_handle_damage("received storage key-error uncorrected "
"machine check.");
-
if (mci->ds && mci->fa)
/* Storage degradation */
s390_handle_damage("received storage degradation machine "
"check.");
-
if (mci->cp) {
/* Channel report word pending */
mcck->channel_report = 1;
set_thread_flag(TIF_MCCK_PENDING);
}
-
if (mci->w) {
/* Warning pending */
mcck->warning = 1;
lockdep_on();
}
-/*
- * s390_init_machine_check
- *
- * initialize machine check handling
- */
-static int
-machine_check_init(void)
+static int __init machine_check_init(void)
{
- init_MUTEX_LOCKED(&m_sem);
ctl_set_bit(14, 25); /* enable external damage MCH */
- ctl_set_bit(14, 27); /* enable system recovery MCH */
-#ifdef CONFIG_MACHCHK_WARNING
+ ctl_set_bit(14, 27); /* enable system recovery MCH */
ctl_set_bit(14, 24); /* enable warning MCH */
-#endif
return 0;
}
-
-/*
- * Initialize the machine check handler really early to be able to
- * catch all machine checks that happen during boot
- */
arch_initcall(machine_check_init);
-
-/*
- * Machine checks for the channel subsystem must be enabled
- * after the channel subsystem is initialized
- */
-static int __init
-machine_check_crw_init (void)
-{
- struct task_struct *task;
-
- task = kthread_run(s390_collect_crw_info, &m_sem, "kmcheck");
- if (IS_ERR(task))
- return PTR_ERR(task);
- ctl_set_bit(14, 28); /* enable channel report MCH */
- return 0;
-}
-
-device_initcall (machine_check_crw_init);
/*
- * arch/s390/kernel/process.c
+ * This file handles the architecture dependent parts of process handling.
*
- * S390 version
- * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
- * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com),
- * Hartmut Penner (hp@de.ibm.com),
- * Denis Joseph Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com),
- *
- * Derived from "arch/i386/kernel/process.c"
- * Copyright (C) 1995, Linus Torvalds
- */
-
-/*
- * This file handles the architecture-dependent parts of process handling..
+ * Copyright IBM Corp. 1999,2009
+ * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>,
+ * Hartmut Penner <hp@de.ibm.com>,
+ * Denis Joseph Barrow,
*/
#include <linux/compiler.h>
#include <asm/processor.h>
#include <asm/irq.h>
#include <asm/timer.h>
+#include <asm/nmi.h>
#include "entry.h"
asmlinkage void ret_from_fork(void) asm ("ret_from_fork");
return sf->gprs[8];
}
-extern void s390_handle_mcck(void);
/*
* The idle loop on a S390...
*/
return do_fork(flags | CLONE_VM | CLONE_UNTRACED,
0, ®s, 0, NULL, NULL);
}
+EXPORT_SYMBOL(kernel_thread);
/*
* Free current thread data structures etc..
}
int copy_thread(int nr, unsigned long clone_flags, unsigned long new_stackp,
- unsigned long unused,
- struct task_struct * p, struct pt_regs * regs)
+ unsigned long unused,
+ struct task_struct *p, struct pt_regs *regs)
{
- struct fake_frame
- {
- struct stack_frame sf;
- struct pt_regs childregs;
- } *frame;
-
- frame = container_of(task_pt_regs(p), struct fake_frame, childregs);
- p->thread.ksp = (unsigned long) frame;
+ struct thread_info *ti;
+ struct fake_frame
+ {
+ struct stack_frame sf;
+ struct pt_regs childregs;
+ } *frame;
+
+ frame = container_of(task_pt_regs(p), struct fake_frame, childregs);
+ p->thread.ksp = (unsigned long) frame;
/* Store access registers to kernel stack of new process. */
- frame->childregs = *regs;
+ frame->childregs = *regs;
frame->childregs.gprs[2] = 0; /* child returns 0 on fork. */
- frame->childregs.gprs[15] = new_stackp;
- frame->sf.back_chain = 0;
+ frame->childregs.gprs[15] = new_stackp;
+ frame->sf.back_chain = 0;
- /* new return point is ret_from_fork */
- frame->sf.gprs[8] = (unsigned long) ret_from_fork;
+ /* new return point is ret_from_fork */
+ frame->sf.gprs[8] = (unsigned long) ret_from_fork;
- /* fake return stack for resume(), don't go back to schedule */
- frame->sf.gprs[9] = (unsigned long) frame;
+ /* fake return stack for resume(), don't go back to schedule */
+ frame->sf.gprs[9] = (unsigned long) frame;
/* Save access registers to new thread structure. */
save_access_regs(&p->thread.acrs[0]);
#ifndef CONFIG_64BIT
- /*
+ /*
* save fprs to current->thread.fp_regs to merge them with
* the emulated registers and then copy the result to the child.
*/
#endif /* CONFIG_64BIT */
/* start new process with ar4 pointing to the correct address space */
p->thread.mm_segment = get_fs();
- /* Don't copy debug registers */
- memset(&p->thread.per_info,0,sizeof(p->thread.per_info));
-
- return 0;
+ /* Don't copy debug registers */
+ memset(&p->thread.per_info, 0, sizeof(p->thread.per_info));
+ /* Initialize per thread user and system timer values */
+ ti = task_thread_info(p);
+ ti->user_timer = 0;
+ ti->system_timer = 0;
+ return 0;
}
SYSCALL_DEFINE0(fork)
int dump_fpu (struct pt_regs * regs, s390_fp_regs *fpregs)
{
#ifndef CONFIG_64BIT
- /*
+ /*
* save fprs to current->thread.fp_regs to merge them with
* the emulated registers and then copy the result to the dump.
*/
#endif /* CONFIG_64BIT */
return 1;
}
+EXPORT_SYMBOL(dump_fpu);
unsigned long get_wchan(struct task_struct *p)
{
}
return 0;
}
-
#include <asm/lowcore.h>
#include <asm/param.h>
-void __cpuinit print_cpu_info(struct cpuinfo_S390 *cpuinfo)
+void __cpuinit print_cpu_info(void)
{
pr_info("Processor %d started, address %d, identification %06X\n",
- cpuinfo->cpu_nr, cpuinfo->cpu_addr, cpuinfo->cpu_id.ident);
+ S390_lowcore.cpu_nr, S390_lowcore.cpu_addr,
+ S390_lowcore.cpu_id.ident);
}
/*
static int show_cpuinfo(struct seq_file *m, void *v)
{
- static const char *hwcap_str[8] = {
+ static const char *hwcap_str[9] = {
"esan3", "zarch", "stfle", "msa", "ldisp", "eimm", "dfp",
- "edat"
+ "edat", "etf3eh"
};
- struct cpuinfo_S390 *cpuinfo;
- unsigned long n = (unsigned long) v - 1;
- int i;
+ struct _lowcore *lc;
+ unsigned long n = (unsigned long) v - 1;
+ int i;
- s390_adjust_jiffies();
- preempt_disable();
- if (!n) {
- seq_printf(m, "vendor_id : IBM/S390\n"
- "# processors : %i\n"
- "bogomips per cpu: %lu.%02lu\n",
- num_online_cpus(), loops_per_jiffy/(500000/HZ),
- (loops_per_jiffy/(5000/HZ))%100);
- seq_puts(m, "features\t: ");
- for (i = 0; i < 8; i++)
- if (hwcap_str[i] && (elf_hwcap & (1UL << i)))
- seq_printf(m, "%s ", hwcap_str[i]);
- seq_puts(m, "\n");
- }
+ s390_adjust_jiffies();
+ preempt_disable();
+ if (!n) {
+ seq_printf(m, "vendor_id : IBM/S390\n"
+ "# processors : %i\n"
+ "bogomips per cpu: %lu.%02lu\n",
+ num_online_cpus(), loops_per_jiffy/(500000/HZ),
+ (loops_per_jiffy/(5000/HZ))%100);
+ seq_puts(m, "features\t: ");
+ for (i = 0; i < 9; i++)
+ if (hwcap_str[i] && (elf_hwcap & (1UL << i)))
+ seq_printf(m, "%s ", hwcap_str[i]);
+ seq_puts(m, "\n");
+ }
- if (cpu_online(n)) {
+ if (cpu_online(n)) {
#ifdef CONFIG_SMP
- if (smp_processor_id() == n)
- cpuinfo = &S390_lowcore.cpu_data;
- else
- cpuinfo = &lowcore_ptr[n]->cpu_data;
+ lc = (smp_processor_id() == n) ?
+ &S390_lowcore : lowcore_ptr[n];
#else
- cpuinfo = &S390_lowcore.cpu_data;
+ lc = &S390_lowcore;
#endif
- seq_printf(m, "processor %li: "
- "version = %02X, "
- "identification = %06X, "
- "machine = %04X\n",
- n, cpuinfo->cpu_id.version,
- cpuinfo->cpu_id.ident,
- cpuinfo->cpu_id.machine);
- }
- preempt_enable();
- return 0;
+ seq_printf(m, "processor %li: "
+ "version = %02X, "
+ "identification = %06X, "
+ "machine = %04X\n",
+ n, lc->cpu_id.version,
+ lc->cpu_id.ident,
+ lc->cpu_id.machine);
+ }
+ preempt_enable();
+ return 0;
}
static void *c_start(struct seq_file *m, loff_t *pos)
/*
- * arch/s390/kernel/reipl.S
- *
- * S390 version
- * Copyright (C) 2000 IBM Deutschland Entwicklung GmbH, IBM Corporation
- * Author(s): Holger Smolinski (Holger.Smolinski@de.ibm.com)
- Denis Joseph Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com)
+ * Copyright IBM Corp 2000,2009
+ * Author(s): Holger Smolinski <Holger.Smolinski@de.ibm.com>,
+ * Denis Joseph Barrow,
*/
#include <asm/lowcore.h>
mvc __LC_PREFIX_SAVE_AREA-0x1000(4,%r1),0(%r10)
stfpc __LC_FP_CREG_SAVE_AREA-0x1000(%r1)
stckc .Lclkcmp-.Lpg0(%r13)
- mvc __LC_CLOCK_COMP_SAVE_AREA-0x1000(8,%r1),.Lclkcmp-.Lpg0(%r13)
+ mvc __LC_CLOCK_COMP_SAVE_AREA-0x1000(7,%r1),.Lclkcmp-.Lpg0(%r13)
stpt __LC_CPU_TIMER_SAVE_AREA-0x1000(%r1)
stg %r13, __LC_PSW_SAVE_AREA-0x1000+8(%r1)
-/*
- * arch/s390/kernel/s390_ksyms.c
- *
- * S390 version
- */
-#include <linux/highuid.h>
#include <linux/module.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/syscalls.h>
-#include <linux/interrupt.h>
-#include <asm/checksum.h>
-#include <asm/cpcmd.h>
-#include <asm/delay.h>
-#include <asm/pgalloc.h>
-#include <asm/setup.h>
#include <asm/ftrace.h>
-#ifdef CONFIG_IP_MULTICAST
-#include <net/arp.h>
-#endif
-
-/*
- * memory management
- */
-EXPORT_SYMBOL(_oi_bitmap);
-EXPORT_SYMBOL(_ni_bitmap);
-EXPORT_SYMBOL(_zb_findmap);
-EXPORT_SYMBOL(_sb_findmap);
-
-/*
- * binfmt_elf loader
- */
-extern int dump_fpu (struct pt_regs * regs, s390_fp_regs *fpregs);
-EXPORT_SYMBOL(dump_fpu);
-EXPORT_SYMBOL(empty_zero_page);
-
-/*
- * misc.
- */
-EXPORT_SYMBOL(machine_flags);
-EXPORT_SYMBOL(__udelay);
-EXPORT_SYMBOL(kernel_thread);
-EXPORT_SYMBOL(csum_fold);
-EXPORT_SYMBOL(console_mode);
-EXPORT_SYMBOL(console_devno);
-EXPORT_SYMBOL(console_irq);
#ifdef CONFIG_FUNCTION_TRACER
EXPORT_SYMBOL(_mcount);
* Machine setup..
*/
unsigned int console_mode = 0;
+EXPORT_SYMBOL(console_mode);
+
unsigned int console_devno = -1;
+EXPORT_SYMBOL(console_devno);
+
unsigned int console_irq = -1;
+EXPORT_SYMBOL(console_irq);
+
unsigned long machine_flags;
+EXPORT_SYMBOL(machine_flags);
+
unsigned long elf_hwcap = 0;
char elf_platform[ELF_PLATFORM_SIZE];
int __initdata memory_end_set;
unsigned long __initdata memory_end;
+/* An array with a pointer to the lowcore of every CPU. */
+struct _lowcore *lowcore_ptr[NR_CPUS];
+EXPORT_SYMBOL(lowcore_ptr);
+
/*
* This is set up by the setup-routine at boot-time
* for S390 need to find out, what we have to setup
*/
void __cpuinit cpu_init(void)
{
- int addr = hard_smp_processor_id();
-
/*
* Store processor id in lowcore (used e.g. in timer_interrupt)
*/
- get_cpu_id(&S390_lowcore.cpu_data.cpu_id);
- S390_lowcore.cpu_data.cpu_addr = addr;
+ get_cpu_id(&S390_lowcore.cpu_id);
/*
* Force FPU initialization:
atomic_inc(&init_mm.mm_count);
current->active_mm = &init_mm;
- if (current->mm)
- BUG();
+ BUG_ON(current->mm);
enter_lazy_tlb(&init_mm, current);
}
}
}
-#if defined(CONFIG_ZFCPDUMP) || defined(CONFIG_ZFCPDUMP_MODULE)
+#ifdef CONFIG_ZFCPDUMP
static void __init setup_zfcpdump(unsigned int console_devno)
{
static char str[41];
early_param("mem", early_parse_mem);
#ifdef CONFIG_S390_SWITCH_AMODE
-#ifdef CONFIG_PGSTE
-unsigned int switch_amode = 1;
-#else
unsigned int switch_amode = 0;
-#endif
EXPORT_SYMBOL_GPL(switch_amode);
static int set_amode_and_uaccess(unsigned long user_amode,
PSW_ADDR_AMODE | (unsigned long) mcck_int_handler;
lc->io_new_psw.mask = psw_kernel_bits;
lc->io_new_psw.addr = PSW_ADDR_AMODE | (unsigned long) io_int_handler;
- lc->ipl_device = S390_lowcore.ipl_device;
lc->clock_comparator = -1ULL;
lc->kernel_stack = ((unsigned long) &init_thread_union) + THREAD_SIZE;
lc->async_stack = (unsigned long)
lc->vdso_per_cpu_data = (unsigned long) &lc->paste[0];
#endif
set_prefix((u32)(unsigned long) lc);
+ lowcore_ptr[0] = lc;
}
static void __init
unsigned long max_mem;
int i;
-#if defined(CONFIG_ZFCPDUMP) || defined(CONFIG_ZFCPDUMP_MODULE)
+#ifdef CONFIG_ZFCPDUMP
if (ipl_info.type == IPL_TYPE_FCP_DUMP) {
memory_end = ZFCPDUMP_HSA_SIZE;
memory_end_set = 1;
static void __init setup_hwcaps(void)
{
static const int stfl_bits[6] = { 0, 2, 7, 17, 19, 21 };
- struct cpuinfo_S390 *cpuinfo = &S390_lowcore.cpu_data;
unsigned long long facility_list_extended;
unsigned int facility_list;
int i;
* Bit 17: the message-security assist is installed
* Bit 19: the long-displacement facility is installed
* Bit 21: the extended-immediate facility is installed
+ * Bit 22: extended-translation facility 3 is installed
+ * Bit 30: extended-translation facility 3 enhancement facility
* These get translated to:
* HWCAP_S390_ESAN3 bit 0, HWCAP_S390_ZARCH bit 1,
* HWCAP_S390_STFLE bit 2, HWCAP_S390_MSA bit 3,
- * HWCAP_S390_LDISP bit 4, and HWCAP_S390_EIMM bit 5.
+ * HWCAP_S390_LDISP bit 4, HWCAP_S390_EIMM bit 5 and
+ * HWCAP_S390_ETF3EH bit 8 (22 && 30).
*/
for (i = 0; i < 6; i++)
if (facility_list & (1UL << (31 - stfl_bits[i])))
elf_hwcap |= 1UL << i;
+ if ((facility_list & (1UL << (31 - 22)))
+ && (facility_list & (1UL << (31 - 30))))
+ elf_hwcap |= 1UL << 8;
+
/*
* Check for additional facilities with store-facility-list-extended.
* stfle stores doublewords (8 byte) with bit 1ULL<<63 as bit 0
* How many facility words are stored depends on the number of
* doublewords passed to the instruction. The additional facilites
* are:
- * Bit 43: decimal floating point facility is installed
+ * Bit 42: decimal floating point facility is installed
+ * Bit 44: perform floating point operation facility is installed
* translated to:
- * HWCAP_S390_DFP bit 6.
+ * HWCAP_S390_DFP bit 6 (42 && 44).
*/
if ((elf_hwcap & (1UL << 2)) &&
__stfle(&facility_list_extended, 1) > 0) {
- if (facility_list_extended & (1ULL << (64 - 43)))
+ if ((facility_list_extended & (1ULL << (63 - 42)))
+ && (facility_list_extended & (1ULL << (63 - 44))))
elf_hwcap |= 1UL << 6;
}
if (MACHINE_HAS_HPAGE)
elf_hwcap |= 1UL << 7;
- switch (cpuinfo->cpu_id.machine) {
+ switch (S390_lowcore.cpu_id.machine) {
case 0x9672:
#if !defined(CONFIG_64BIT)
default: /* Use "g5" as default for 31 bit kernels. */
setup_lowcore();
cpu_init();
- __cpu_logical_map[0] = S390_lowcore.cpu_data.cpu_addr;
+ __cpu_logical_map[0] = stap();
s390_init_cpu_topology();
/*
#include <linux/delay.h>
#include <linux/cache.h>
#include <linux/interrupt.h>
+#include <linux/irqflags.h>
#include <linux/cpu.h>
#include <linux/timex.h>
#include <linux/bootmem.h>
#include <asm/vdso.h>
#include "entry.h"
-/*
- * An array with a pointer the lowcore of every CPU.
- */
-struct _lowcore *lowcore_ptr[NR_CPUS];
-EXPORT_SYMBOL(lowcore_ptr);
-
static struct task_struct *current_set[NR_CPUS];
static u8 smp_cpu_type;
/* Disable all interrupts/machine checks */
__load_psw_mask(psw_kernel_bits & ~PSW_MASK_MCHECK);
-
- /* write magic number to zero page (absolute 0) */
- lowcore_ptr[smp_processor_id()]->panic_magic = __PANIC_MAGIC;
+ trace_hardirqs_off();
/* stop all processors */
for_each_online_cpu(cpu) {
*/
#define CPU_INIT_NO 1
-#if defined(CONFIG_ZFCPDUMP) || defined(CONFIG_ZFCPDUMP_MODULE)
+#ifdef CONFIG_ZFCPDUMP
/*
* zfcpdump_prefix_array holds prefix registers for the following scenario:
static inline void smp_get_save_area(unsigned int cpu, unsigned int phy_cpu) { }
-#endif /* CONFIG_ZFCPDUMP || CONFIG_ZFCPDUMP_MODULE */
+#endif /* CONFIG_ZFCPDUMP */
static int cpu_stopped(int cpu)
{
{
int cpu_id, logical_cpu;
- logical_cpu = first_cpu(avail);
- if (logical_cpu == NR_CPUS)
+ logical_cpu = cpumask_first(&avail);
+ if (logical_cpu >= nr_cpu_ids)
return 0;
for (cpu_id = 0; cpu_id <= 65535; cpu_id++) {
if (cpu_known(cpu_id))
continue;
cpu_set(logical_cpu, cpu_present_map);
smp_cpu_state[logical_cpu] = CPU_STATE_CONFIGURED;
- logical_cpu = next_cpu(logical_cpu, avail);
- if (logical_cpu == NR_CPUS)
+ logical_cpu = cpumask_next(logical_cpu, &avail);
+ if (logical_cpu >= nr_cpu_ids)
break;
}
return 0;
int cpu_id, logical_cpu, cpu;
int rc;
- logical_cpu = first_cpu(avail);
- if (logical_cpu == NR_CPUS)
+ logical_cpu = cpumask_first(&avail);
+ if (logical_cpu >= nr_cpu_ids)
return 0;
info = kmalloc(sizeof(*info), GFP_KERNEL);
if (!info)
smp_cpu_state[logical_cpu] = CPU_STATE_STANDBY;
else
smp_cpu_state[logical_cpu] = CPU_STATE_CONFIGURED;
- logical_cpu = next_cpu(logical_cpu, avail);
- if (logical_cpu == NR_CPUS)
+ logical_cpu = cpumask_next(logical_cpu, &avail);
+ if (logical_cpu >= nr_cpu_ids)
break;
}
out:
c_cpus = 1;
s_cpus = 0;
- boot_cpu_addr = S390_lowcore.cpu_data.cpu_addr;
+ boot_cpu_addr = __cpu_logical_map[0];
info = kmalloc(sizeof(*info), GFP_KERNEL);
if (!info)
panic("smp_detect_cpus failed to allocate memory\n");
/* Switch on interrupts */
local_irq_enable();
/* Print info about this processor */
- print_cpu_info(&S390_lowcore.cpu_data);
+ print_cpu_info();
/* cpu_idle will call schedule for us */
cpu_idle();
return 0;
return -ENOMEM;
}
-#ifdef CONFIG_HOTPLUG_CPU
static void smp_free_lowcore(int cpu)
{
struct _lowcore *lowcore;
free_pages((unsigned long) lowcore, lc_order);
lowcore_ptr[cpu] = NULL;
}
-#endif /* CONFIG_HOTPLUG_CPU */
/* Upping and downing of CPUs */
int __cpuinit __cpu_up(unsigned int cpu)
struct _lowcore *cpu_lowcore;
struct stack_frame *sf;
sigp_ccode ccode;
+ u32 lowcore;
if (smp_cpu_state[cpu] != CPU_STATE_CONFIGURED)
return -EIO;
if (smp_alloc_lowcore(cpu))
return -ENOMEM;
-
- ccode = signal_processor_p((__u32)(unsigned long)(lowcore_ptr[cpu]),
- cpu, sigp_set_prefix);
- if (ccode)
- return -EIO;
+ do {
+ ccode = signal_processor(cpu, sigp_initial_cpu_reset);
+ if (ccode == sigp_busy)
+ udelay(10);
+ if (ccode == sigp_not_operational)
+ goto err_out;
+ } while (ccode == sigp_busy);
+
+ lowcore = (u32)(unsigned long)lowcore_ptr[cpu];
+ while (signal_processor_p(lowcore, cpu, sigp_set_prefix) == sigp_busy)
+ udelay(10);
idle = current_set[cpu];
cpu_lowcore = lowcore_ptr[cpu];
: : "a" (&cpu_lowcore->access_regs_save_area) : "memory");
cpu_lowcore->percpu_offset = __per_cpu_offset[cpu];
cpu_lowcore->current_task = (unsigned long) idle;
- cpu_lowcore->cpu_data.cpu_nr = cpu;
+ cpu_lowcore->cpu_nr = cpu;
cpu_lowcore->kernel_asce = S390_lowcore.kernel_asce;
- cpu_lowcore->ipl_device = S390_lowcore.ipl_device;
eieio();
while (signal_processor(cpu, sigp_restart) == sigp_busy)
while (!cpu_online(cpu))
cpu_relax();
return 0;
+
+err_out:
+ smp_free_lowcore(cpu);
+ return -EIO;
}
static int __init setup_possible_cpus(char *s)
int pcpus, cpu;
pcpus = simple_strtoul(s, NULL, 0);
- cpu_possible_map = cpumask_of_cpu(0);
- for (cpu = 1; cpu < pcpus && cpu < NR_CPUS; cpu++)
- cpu_set(cpu, cpu_possible_map);
+ for (cpu = 0; cpu < pcpus && cpu < nr_cpu_ids; cpu++)
+ set_cpu_possible(cpu, true);
return 0;
}
early_param("possible_cpus", setup_possible_cpus);
/* request the 0x1201 emergency signal external interrupt */
if (register_external_interrupt(0x1201, do_ext_call_interrupt) != 0)
panic("Couldn't request external interrupt 0x1201");
- print_cpu_info(&S390_lowcore.cpu_data);
+ print_cpu_info();
/* Reallocate current lowcore, but keep its contents. */
lc_order = sizeof(long) == 8 ? 1 : 0;
/*
- * drivers/s390/sysinfo.c
- *
- * Copyright IBM Corp. 2001, 2008
- * Author(s): Ulrich Weigand (Ulrich.Weigand@de.ibm.com)
- * Martin Schwidefsky <schwidefsky@de.ibm.com>
+ * Copyright IBM Corp. 2001, 2009
+ * Author(s): Ulrich Weigand <Ulrich.Weigand@de.ibm.com>,
+ * Martin Schwidefsky <schwidefsky@de.ibm.com>,
*/
#include <linux/kernel.h>
static inline int stsi_0(void)
{
- int rc = stsi (NULL, 0, 0, 0);
+ int rc = stsi(NULL, 0, 0, 0);
return rc == -ENOSYS ? rc : (((unsigned int) rc) >> 28);
}
return len;
}
-#if 0 /* Currently unused */
-static int stsi_1_2_1(struct sysinfo_1_2_1 *info, char *page, int len)
-{
- if (stsi(info, 1, 2, 1) == -ENOSYS)
- return len;
-
- len += sprintf(page + len, "\n");
- EBCASC(info->sequence, sizeof(info->sequence));
- EBCASC(info->plant, sizeof(info->plant));
- len += sprintf(page + len, "Sequence Code of CPU: %-16.16s\n",
- info->sequence);
- len += sprintf(page + len, "Plant of CPU: %-16.16s\n",
- info->plant);
- return len;
-}
-#endif
-
static int stsi_1_2_2(struct sysinfo_1_2_2 *info, char *page, int len)
{
struct sysinfo_1_2_2_extension *ext;
if (info->secondary_capability != 0)
len += sprintf(page + len, "Secondary Capability: %d\n",
info->secondary_capability);
-
return len;
}
-#if 0 /* Currently unused */
-static int stsi_2_2_1(struct sysinfo_2_2_1 *info, char *page, int len)
-{
- if (stsi(info, 2, 2, 1) == -ENOSYS)
- return len;
-
- len += sprintf(page + len, "\n");
- EBCASC (info->sequence, sizeof(info->sequence));
- EBCASC (info->plant, sizeof(info->plant));
- len += sprintf(page + len, "Sequence Code of logical CPU: %-16.16s\n",
- info->sequence);
- len += sprintf(page + len, "Plant of logical CPU: %-16.16s\n",
- info->plant);
- return len;
-}
-#endif
-
static int stsi_2_2_2(struct sysinfo_2_2_2 *info, char *page, int len)
{
if (stsi(info, 2, 2, 2) == -ENOSYS)
return len;
- EBCASC (info->name, sizeof(info->name));
+ EBCASC(info->name, sizeof(info->name));
len += sprintf(page + len, "\n");
len += sprintf(page + len, "LPAR Number: %d\n",
if (stsi(info, 3, 2, 2) == -ENOSYS)
return len;
for (i = 0; i < info->count; i++) {
- EBCASC (info->vm[i].name, sizeof(info->vm[i].name));
- EBCASC (info->vm[i].cpi, sizeof(info->vm[i].cpi));
+ EBCASC(info->vm[i].name, sizeof(info->vm[i].name));
+ EBCASC(info->vm[i].cpi, sizeof(info->vm[i].cpi));
len += sprintf(page + len, "\n");
len += sprintf(page + len, "VM%02d Name: %-8.8s\n",
i, info->vm[i].name);
return len;
}
-
static int proc_read_sysinfo(char *page, char **start,
- off_t off, int count,
- int *eof, void *data)
+ off_t off, int count,
+ int *eof, void *data)
{
- unsigned long info = get_zeroed_page (GFP_KERNEL);
+ unsigned long info = get_zeroed_page(GFP_KERNEL);
int level, len;
-
+
if (!info)
return 0;
if (level >= 3)
len = stsi_3_2_2((struct sysinfo_3_2_2 *) info, page, len);
- free_page (info);
- return len;
+ free_page(info);
+ return len;
}
static __init int create_proc_sysinfo(void)
proc_read_sysinfo, NULL);
return 0;
}
-
-__initcall(create_proc_sysinfo);
+device_initcall(create_proc_sysinfo);
/*
* Service levels interface.
register_service_level(&service_level_vm);
return 0;
}
-
subsys_initcall(create_proc_service_level);
/*
* Bogomips calculation based on cpu capability.
*/
-
int get_cpu_capability(unsigned int *capability)
{
struct sysinfo_1_2_2 *info;
}
static DEFINE_PER_CPU(atomic_t, clock_sync_word);
+static DEFINE_MUTEX(clock_sync_mutex);
static unsigned long clock_sync_flags;
#define CLOCK_SYNC_HAS_ETR 0
atomic_set_mask(0x80000000, sw_ptr);
}
+/*
+ * Function to check if the clock is in sync.
+ */
+static inline int check_sync_clock(void)
+{
+ atomic_t *sw_ptr;
+ int rc;
+
+ sw_ptr = &get_cpu_var(clock_sync_word);
+ rc = (atomic_read(sw_ptr) & 0x80000000U) != 0;
+ put_cpu_var(clock_sync_sync);
+ return rc;
+}
+
/* Single threaded workqueue used for etr and stp sync events */
static struct workqueue_struct *time_sync_wq;
if (etr_setr(&etr_eacr) == 0) {
etr_tolec = get_clock();
set_bit(CLOCK_SYNC_HAS_ETR, &clock_sync_flags);
+ if (etr_port0_online && etr_port1_online)
+ set_bit(CLOCK_SYNC_ETR, &clock_sync_flags);
} else if (etr_port0_online || etr_port1_online) {
pr_warning("The real or virtual hardware system does "
"not provide an ETR interface\n");
{
if (!etr_eacr.sl)
return;
- if (test_bit(CLOCK_SYNC_ETR, &clock_sync_flags))
- disable_sync_clock(NULL);
+ disable_sync_clock(NULL);
set_bit(ETR_EVENT_SWITCH_LOCAL, &etr_events);
queue_work(time_sync_wq, &etr_work);
}
{
if (!etr_eacr.es)
return;
- if (test_bit(CLOCK_SYNC_ETR, &clock_sync_flags))
- disable_sync_clock(NULL);
+ disable_sync_clock(NULL);
set_bit(ETR_EVENT_SYNC_CHECK, &etr_events);
queue_work(time_sync_wq, &etr_work);
}
* Do not try to get the alternate port aib if the clock
* is not in sync yet.
*/
- if (!test_bit(CLOCK_SYNC_STP, &clock_sync_flags) && !eacr.es)
+ if (!check_sync_clock())
return eacr;
/*
on_each_cpu(disable_sync_clock, NULL, 1);
del_timer_sync(&etr_timer);
etr_update_eacr(eacr);
- clear_bit(CLOCK_SYNC_ETR, &clock_sync_flags);
goto out_unlock;
}
/* Both ports not usable. */
eacr.es = eacr.sl = 0;
sync_port = -1;
- clear_bit(CLOCK_SYNC_ETR, &clock_sync_flags);
}
- if (!test_bit(CLOCK_SYNC_ETR, &clock_sync_flags))
- eacr.es = 0;
-
/*
* If the clock is in sync just update the eacr and return.
* If there is no valid sync port wait for a port update.
*/
- if (test_bit(CLOCK_SYNC_STP, &clock_sync_flags) ||
- eacr.es || sync_port < 0) {
+ if (check_sync_clock() || sync_port < 0) {
etr_update_eacr(eacr);
etr_set_tolec_timeout(now);
goto out_unlock;
* and set up a timer to try again after 0.5 seconds
*/
etr_update_eacr(eacr);
- set_bit(CLOCK_SYNC_ETR, &clock_sync_flags);
if (now < etr_tolec + (1600000 << 12) ||
etr_sync_clock_stop(&aib, sync_port) != 0) {
/* Sync failed. Try again in 1/2 second. */
eacr.es = 0;
etr_update_eacr(eacr);
- clear_bit(CLOCK_SYNC_ETR, &clock_sync_flags);
etr_set_sync_timeout();
} else
etr_set_tolec_timeout(now);
return -EINVAL;
if (!test_bit(CLOCK_SYNC_HAS_ETR, &clock_sync_flags))
return -EOPNOTSUPP;
+ mutex_lock(&clock_sync_mutex);
if (dev == &etr_port0_dev) {
if (etr_port0_online == value)
- return count; /* Nothing to do. */
+ goto out; /* Nothing to do. */
etr_port0_online = value;
+ if (etr_port0_online && etr_port1_online)
+ set_bit(CLOCK_SYNC_ETR, &clock_sync_flags);
+ else
+ clear_bit(CLOCK_SYNC_ETR, &clock_sync_flags);
set_bit(ETR_EVENT_PORT0_CHANGE, &etr_events);
queue_work(time_sync_wq, &etr_work);
} else {
if (etr_port1_online == value)
- return count; /* Nothing to do. */
+ goto out; /* Nothing to do. */
etr_port1_online = value;
+ if (etr_port0_online && etr_port1_online)
+ set_bit(CLOCK_SYNC_ETR, &clock_sync_flags);
+ else
+ clear_bit(CLOCK_SYNC_ETR, &clock_sync_flags);
set_bit(ETR_EVENT_PORT1_CHANGE, &etr_events);
queue_work(time_sync_wq, &etr_work);
}
+out:
+ mutex_unlock(&clock_sync_mutex);
return count;
}
*/
void stp_sync_check(void)
{
- if (!test_bit(CLOCK_SYNC_STP, &clock_sync_flags))
- return;
disable_sync_clock(NULL);
queue_work(time_sync_wq, &stp_work);
}
*/
void stp_island_check(void)
{
- if (!test_bit(CLOCK_SYNC_STP, &clock_sync_flags))
- return;
disable_sync_clock(NULL);
queue_work(time_sync_wq, &stp_work);
}
enable_sync_clock();
- set_bit(CLOCK_SYNC_STP, &clock_sync_flags);
- if (test_and_clear_bit(CLOCK_SYNC_ETR, &clock_sync_flags))
- queue_work(time_sync_wq, &etr_work);
-
rc = 0;
if (stp_info.todoff[0] || stp_info.todoff[1] ||
stp_info.todoff[2] || stp_info.todoff[3] ||
if (rc) {
disable_sync_clock(NULL);
stp_sync->in_sync = -EAGAIN;
- clear_bit(CLOCK_SYNC_STP, &clock_sync_flags);
- if (etr_port0_online || etr_port1_online)
- queue_work(time_sync_wq, &etr_work);
} else
stp_sync->in_sync = 1;
xchg(&first, 0);
if (rc || stp_info.c == 0)
goto out_unlock;
+ /* Skip synchronization if the clock is already in sync. */
+ if (check_sync_clock())
+ goto out_unlock;
+
memset(&stp_sync, 0, sizeof(stp_sync));
get_online_cpus();
atomic_set(&stp_sync.cpus, num_online_cpus() - 1);
return -EINVAL;
if (!test_bit(CLOCK_SYNC_HAS_STP, &clock_sync_flags))
return -EOPNOTSUPP;
+ mutex_lock(&clock_sync_mutex);
stp_online = value;
+ if (stp_online)
+ set_bit(CLOCK_SYNC_STP, &clock_sync_flags);
+ else
+ clear_bit(CLOCK_SYNC_STP, &clock_sync_flags);
queue_work(time_sync_wq, &stp_work);
+ mutex_unlock(&clock_sync_mutex);
return count;
}
cpumask_t cpu_core_map[NR_CPUS];
-cpumask_t cpu_coregroup_map(unsigned int cpu)
+static cpumask_t cpu_coregroup_map(unsigned int cpu)
{
struct core_info *core = &core_info;
unsigned long flags;
#define stack_pointer ({ void **sp; asm("la %0,0(15)" : "=&d" (sp)); sp; })
#ifndef CONFIG_64BIT
+#define LONG "%08lx "
#define FOURLONG "%08lx %08lx %08lx %08lx\n"
static int kstack_depth_to_print = 12;
#else /* CONFIG_64BIT */
+#define LONG "%016lx "
#define FOURLONG "%016lx %016lx %016lx %016lx\n"
static int kstack_depth_to_print = 20;
#endif /* CONFIG_64BIT */
break;
if (i && ((i * sizeof (long) % 32) == 0))
printk("\n ");
- printk("%p ", (void *)*stack++);
+ printk(LONG, *stack++);
}
printk("\n");
show_trace(task, sp);
return -ENOMEM;
}
-#ifdef CONFIG_HOTPLUG_CPU
void vdso_free_per_cpu(int cpu, struct _lowcore *lowcore)
{
unsigned long segment_table, page_table, page_frame;
free_page(page_table);
free_pages(segment_table, SEGMENT_ORDER);
}
-#endif /* CONFIG_HOTPLUG_CPU */
static void __vdso_init_cr5(void *dummy)
{
EXIT_TEXT
}
+ /* early.c uses stsi, which requires page aligned data. */
+ . = ALIGN(PAGE_SIZE);
.init.data : {
INIT_DATA
}
#include <linux/timer.h>
#include <asm/lowcore.h>
#include <asm/pgtable.h>
-
+#include <asm/nmi.h>
#include "kvm-s390.h"
#include "gaccess.h"
setup_timer(&vcpu->arch.ckc_timer, kvm_s390_idle_wakeup,
(unsigned long) vcpu);
get_cpu_id(&vcpu->arch.cpu_id);
- vcpu->arch.cpu_id.version = 0xfe;
+ vcpu->arch.cpu_id.version = 0xff;
return 0;
}
return -EINVAL; /* not implemented yet */
}
-extern void s390_handle_mcck(void);
-
static void __vcpu_run(struct kvm_vcpu *vcpu)
{
memcpy(&vcpu->arch.sie_block->gg14, &vcpu->arch.guest_gprs[14], 16);
#include <linux/sched.h>
#include <linux/delay.h>
#include <linux/timex.h>
+#include <linux/module.h>
#include <linux/irqflags.h>
#include <linux/interrupt.h>
local_irq_restore(flags);
preempt_enable();
}
+EXPORT_SYMBOL(__udelay);
/*
* Simple udelay variant. To be used on startup and reboot
*/
size_t strlen(const char *s)
{
+#if __GNUC__ < 4
return __strend(s) - s;
+#else
+ return __builtin_strlen(s);
+#endif
}
EXPORT_SYMBOL(strlen);
*/
char *strcpy(char *dest, const char *src)
{
+#if __GNUC__ < 4
register int r0 asm("0") = 0;
char *ret = dest;
: "+&a" (dest), "+&a" (src) : "d" (r0)
: "cc", "memory" );
return ret;
+#else
+ return __builtin_strcpy(dest, src);
+#endif
}
EXPORT_SYMBOL(strcpy);
do_no_context(regs, error_code, 0);
}
-/*
- * We ran out of memory, or some other thing happened to us that made
- * us unable to handle the page fault gracefully.
- */
-static int do_out_of_memory(struct pt_regs *regs, unsigned long error_code,
- unsigned long address)
-{
- struct task_struct *tsk = current;
- struct mm_struct *mm = tsk->mm;
-
- up_read(&mm->mmap_sem);
- if (is_global_init(tsk)) {
- yield();
- down_read(&mm->mmap_sem);
- return 1;
- }
- printk("VM: killing process %s\n", tsk->comm);
- if (regs->psw.mask & PSW_MASK_PSTATE)
- do_group_exit(SIGKILL);
- do_no_context(regs, error_code, address);
- return 0;
-}
-
static void do_sigbus(struct pt_regs *regs, unsigned long error_code,
unsigned long address)
{
goto bad_area;
}
-survive:
if (is_vm_hugetlb_page(vma))
address &= HPAGE_MASK;
/*
fault = handle_mm_fault(mm, vma, address, write);
if (unlikely(fault & VM_FAULT_ERROR)) {
if (fault & VM_FAULT_OOM) {
- if (do_out_of_memory(regs, error_code, address))
- goto survive;
+ up_read(&mm->mmap_sem);
+ pagefault_out_of_memory();
return;
} else if (fault & VM_FAULT_SIGBUS) {
do_sigbus(regs, error_code, address);
DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
pgd_t swapper_pg_dir[PTRS_PER_PGD] __attribute__((__aligned__(PAGE_SIZE)));
+
char empty_zero_page[PAGE_SIZE] __attribute__((__aligned__(PAGE_SIZE)));
+EXPORT_SYMBOL(empty_zero_page);
/*
* paging_init() sets up the page tables
struct task_struct *tsk = current;
struct mm_struct *mm, *old_mm;
+ /* Do we have switched amode? If no, we cannot do sie */
+ if (!switch_amode)
+ return -EINVAL;
+
/* Do we have pgstes? if yes, we are done */
if (tsk->mm->context.has_pgste)
return 0;
tsk->mm = tsk->active_mm = mm;
preempt_disable();
update_mm(mm, tsk);
- cpu_set(smp_processor_id(), mm->cpu_vm_mask);
+ cpumask_set_cpu(smp_processor_id(), mm_cpumask(mm));
preempt_enable();
task_unlock(tsk);
mmput(old_mm);
#include <linux/types.h>
#include <asm/ebcdic.h>
+#include <linux/ctype.h>
#include <linux/delay.h>
#include <linux/init.h>
#include <linux/mempool.h>
-#include <linux/module.h>
+#include <linux/moduleparam.h>
#include <linux/tty.h>
#include <linux/wait.h>
#include <net/iucv/iucv.h>
/* Array of allocated hvc iucv tty lines... */
static struct hvc_iucv_private *hvc_iucv_table[MAX_HVC_IUCV_LINES];
#define IUCV_HVC_CON_IDX (0)
+/* List of z/VM user ID filter entries (struct iucv_vmid_filter) */
+#define MAX_VMID_FILTER (500)
+static size_t hvc_iucv_filter_size;
+static void *hvc_iucv_filter;
+static const char *hvc_iucv_filter_string;
+static DEFINE_RWLOCK(hvc_iucv_filter_lock);
/* Kmem cache and mempool for iucv_tty_buffer elements */
static struct kmem_cache *hvc_iucv_buffer_cache;
}
}
+/**
+ * hvc_iucv_filter_connreq() - Filter connection request based on z/VM user ID
+ * @ipvmid: Originating z/VM user ID (right padded with blanks)
+ *
+ * Returns 0 if the z/VM user ID @ipvmid is allowed to connection, otherwise
+ * non-zero.
+ */
+static int hvc_iucv_filter_connreq(u8 ipvmid[8])
+{
+ size_t i;
+
+ /* Note: default policy is ACCEPT if no filter is set */
+ if (!hvc_iucv_filter_size)
+ return 0;
+
+ for (i = 0; i < hvc_iucv_filter_size; i++)
+ if (0 == memcmp(ipvmid, hvc_iucv_filter + (8 * i), 8))
+ return 0;
+ return 1;
+}
+
/**
* hvc_iucv_path_pending() - IUCV handler to process a connection request.
* @path: Pending path (struct iucv_path)
{
struct hvc_iucv_private *priv;
u8 nuser_data[16];
+ u8 vm_user_id[9];
int i, rc;
priv = NULL;
if (!priv)
return -ENODEV;
+ /* Enforce that ipvmid is allowed to connect to us */
+ read_lock(&hvc_iucv_filter_lock);
+ rc = hvc_iucv_filter_connreq(ipvmid);
+ read_unlock(&hvc_iucv_filter_lock);
+ if (rc) {
+ iucv_path_sever(path, ipuser);
+ iucv_path_free(path);
+ memcpy(vm_user_id, ipvmid, 8);
+ vm_user_id[8] = 0;
+ pr_info("A connection request from z/VM user ID %s "
+ "was refused\n", vm_user_id);
+ return 0;
+ }
+
spin_lock(&priv->lock);
/* If the terminal is already connected or being severed, then sever
return 0;
}
+/**
+ * hvc_iucv_parse_filter() - Parse filter for a single z/VM user ID
+ * @filter: String containing a comma-separated list of z/VM user IDs
+ */
+static const char *hvc_iucv_parse_filter(const char *filter, char *dest)
+{
+ const char *nextdelim, *residual;
+ size_t len;
+
+ nextdelim = strchr(filter, ',');
+ if (nextdelim) {
+ len = nextdelim - filter;
+ residual = nextdelim + 1;
+ } else {
+ len = strlen(filter);
+ residual = filter + len;
+ }
+
+ if (len == 0)
+ return ERR_PTR(-EINVAL);
+
+ /* check for '\n' (if called from sysfs) */
+ if (filter[len - 1] == '\n')
+ len--;
+
+ if (len > 8)
+ return ERR_PTR(-EINVAL);
+
+ /* pad with blanks and save upper case version of user ID */
+ memset(dest, ' ', 8);
+ while (len--)
+ dest[len] = toupper(filter[len]);
+ return residual;
+}
+
+/**
+ * hvc_iucv_setup_filter() - Set up z/VM user ID filter
+ * @filter: String consisting of a comma-separated list of z/VM user IDs
+ *
+ * The function parses the @filter string and creates an array containing
+ * the list of z/VM user ID filter entries.
+ * Return code 0 means success, -EINVAL if the filter is syntactically
+ * incorrect, -ENOMEM if there was not enough memory to allocate the
+ * filter list array, or -ENOSPC if too many z/VM user IDs have been specified.
+ */
+static int hvc_iucv_setup_filter(const char *val)
+{
+ const char *residual;
+ int err;
+ size_t size, count;
+ void *array, *old_filter;
+
+ count = strlen(val);
+ if (count == 0 || (count == 1 && val[0] == '\n')) {
+ size = 0;
+ array = NULL;
+ goto out_replace_filter; /* clear filter */
+ }
+
+ /* count user IDs in order to allocate sufficient memory */
+ size = 1;
+ residual = val;
+ while ((residual = strchr(residual, ',')) != NULL) {
+ residual++;
+ size++;
+ }
+
+ /* check if the specified list exceeds the filter limit */
+ if (size > MAX_VMID_FILTER)
+ return -ENOSPC;
+
+ array = kzalloc(size * 8, GFP_KERNEL);
+ if (!array)
+ return -ENOMEM;
+
+ count = size;
+ residual = val;
+ while (*residual && count) {
+ residual = hvc_iucv_parse_filter(residual,
+ array + ((size - count) * 8));
+ if (IS_ERR(residual)) {
+ err = PTR_ERR(residual);
+ kfree(array);
+ goto out_err;
+ }
+ count--;
+ }
+
+out_replace_filter:
+ write_lock_bh(&hvc_iucv_filter_lock);
+ old_filter = hvc_iucv_filter;
+ hvc_iucv_filter_size = size;
+ hvc_iucv_filter = array;
+ write_unlock_bh(&hvc_iucv_filter_lock);
+ kfree(old_filter);
+
+ err = 0;
+out_err:
+ return err;
+}
+
+/**
+ * param_set_vmidfilter() - Set z/VM user ID filter parameter
+ * @val: String consisting of a comma-separated list of z/VM user IDs
+ * @kp: Kernel parameter pointing to hvc_iucv_filter array
+ *
+ * The function sets up the z/VM user ID filter specified as comma-separated
+ * list of user IDs in @val.
+ * Note: If it is called early in the boot process, @val is stored and
+ * parsed later in hvc_iucv_init().
+ */
+static int param_set_vmidfilter(const char *val, struct kernel_param *kp)
+{
+ int rc;
+
+ if (!MACHINE_IS_VM || !hvc_iucv_devices)
+ return -ENODEV;
+
+ if (!val)
+ return -EINVAL;
+
+ rc = 0;
+ if (slab_is_available())
+ rc = hvc_iucv_setup_filter(val);
+ else
+ hvc_iucv_filter_string = val; /* defer... */
+ return rc;
+}
+
+/**
+ * param_get_vmidfilter() - Get z/VM user ID filter
+ * @buffer: Buffer to store z/VM user ID filter,
+ * (buffer size assumption PAGE_SIZE)
+ * @kp: Kernel parameter pointing to the hvc_iucv_filter array
+ *
+ * The function stores the filter as a comma-separated list of z/VM user IDs
+ * in @buffer. Typically, sysfs routines call this function for attr show.
+ */
+static int param_get_vmidfilter(char *buffer, struct kernel_param *kp)
+{
+ int rc;
+ size_t index, len;
+ void *start, *end;
+
+ if (!MACHINE_IS_VM || !hvc_iucv_devices)
+ return -ENODEV;
+
+ rc = 0;
+ read_lock_bh(&hvc_iucv_filter_lock);
+ for (index = 0; index < hvc_iucv_filter_size; index++) {
+ start = hvc_iucv_filter + (8 * index);
+ end = memchr(start, ' ', 8);
+ len = (end) ? end - start : 8;
+ memcpy(buffer + rc, start, len);
+ rc += len;
+ buffer[rc++] = ',';
+ }
+ read_unlock_bh(&hvc_iucv_filter_lock);
+ if (rc)
+ buffer[--rc] = '\0'; /* replace last comma and update rc */
+ return rc;
+}
+
+#define param_check_vmidfilter(name, p) __param_check(name, p, void)
+
/**
* hvc_iucv_init() - z/VM IUCV HVC device driver initialization
*/
int rc;
unsigned int i;
+ if (!hvc_iucv_devices)
+ return -ENODEV;
+
if (!MACHINE_IS_VM) {
- pr_info("The z/VM IUCV HVC device driver cannot "
+ pr_notice("The z/VM IUCV HVC device driver cannot "
"be used without z/VM\n");
- return -ENODEV;
+ rc = -ENODEV;
+ goto out_error;
}
- if (!hvc_iucv_devices)
- return -ENODEV;
+ if (hvc_iucv_devices > MAX_HVC_IUCV_LINES) {
+ pr_err("%lu is not a valid value for the hvc_iucv= "
+ "kernel parameter\n", hvc_iucv_devices);
+ rc = -EINVAL;
+ goto out_error;
+ }
- if (hvc_iucv_devices > MAX_HVC_IUCV_LINES)
- return -EINVAL;
+ /* parse hvc_iucv_allow string and create z/VM user ID filter list */
+ if (hvc_iucv_filter_string) {
+ rc = hvc_iucv_setup_filter(hvc_iucv_filter_string);
+ switch (rc) {
+ case 0:
+ break;
+ case -ENOMEM:
+ pr_err("Allocating memory failed with "
+ "reason code=%d\n", 3);
+ goto out_error;
+ case -EINVAL:
+ pr_err("hvc_iucv_allow= does not specify a valid "
+ "z/VM user ID list\n");
+ goto out_error;
+ case -ENOSPC:
+ pr_err("hvc_iucv_allow= specifies too many "
+ "z/VM user IDs\n");
+ goto out_error;
+ default:
+ goto out_error;
+ }
+ }
hvc_iucv_buffer_cache = kmem_cache_create(KMSG_COMPONENT,
sizeof(struct iucv_tty_buffer),
0, 0, NULL);
if (!hvc_iucv_buffer_cache) {
pr_err("Allocating memory failed with reason code=%d\n", 1);
- return -ENOMEM;
+ rc = -ENOMEM;
+ goto out_error;
}
hvc_iucv_mempool = mempool_create_slab_pool(MEMPOOL_MIN_NR,
if (!hvc_iucv_mempool) {
pr_err("Allocating memory failed with reason code=%d\n", 2);
kmem_cache_destroy(hvc_iucv_buffer_cache);
- return -ENOMEM;
+ rc = -ENOMEM;
+ goto out_error;
}
/* register the first terminal device as console
out_error_memory:
mempool_destroy(hvc_iucv_mempool);
kmem_cache_destroy(hvc_iucv_buffer_cache);
+out_error:
+ hvc_iucv_devices = 0; /* ensure that we do not provide any device */
return rc;
}
device_initcall(hvc_iucv_init);
__setup("hvc_iucv=", hvc_iucv_config);
+core_param(hvc_iucv_allow, hvc_iucv_filter, vmidfilter, 0640);
# Makefile for the S/390 specific device drivers
#
-CFLAGS_sysinfo.o += -Iinclude/math-emu -Iarch/s390/math-emu -w
-
-obj-y += s390mach.o sysinfo.o
obj-y += cio/ block/ char/ crypto/ net/ scsi/ kvm/
drivers-y += drivers/s390/built-in.o
*
*/
+#define KMSG_COMPONENT "dasd"
+#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
+
#include <linux/kmod.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <asm/ebcdic.h>
#include <asm/idals.h>
#include <asm/todclk.h>
+#include <asm/itcw.h>
/* This is ugly... */
#define PRINTK_HEADER "dasd:"
return rc;
}
/* register 'device' debug area, used for all DBF_DEV_XXX calls */
- device->debug_area = debug_register(dev_name(&device->cdev->dev), 1, 1,
+ device->debug_area = debug_register(dev_name(&device->cdev->dev), 4, 1,
8 * sizeof(long));
debug_register_view(device->debug_area, &debug_sprintf_view);
debug_set_level(device->debug_area, DBF_WARNING);
return -EINVAL;
device = cqr->startdev;
if (strncmp((char *) &cqr->magic, device->discipline->ebcname, 4)) {
- DEV_MESSAGE(KERN_WARNING, device,
+ DBF_DEV_EVENT(DBF_WARNING, device,
" dasd_ccw_req 0x%08x magic doesn't match"
" discipline 0x%08x",
cqr->magic,
{
struct dasd_device *device;
int retries, rc;
+ char errorstring[ERRORLENGTH];
/* Check the cqr */
rc = dasd_check_cqr(cqr);
"device busy, retry later");
break;
default:
- DEV_MESSAGE(KERN_ERR, device,
- "line %d unknown RC=%d, please "
- "report to linux390@de.ibm.com",
- __LINE__, rc);
+ /* internal error 10 - unknown rc*/
+ snprintf(errorstring, ERRORLENGTH, "10 %d", rc);
+ dev_err(&device->cdev->dev, "An error occurred in the "
+ "DASD device driver, reason=%s\n", errorstring);
BUG();
break;
}
{
struct dasd_device *device;
int rc;
+ char errorstring[ERRORLENGTH];
/* Check the cqr */
rc = dasd_check_cqr(cqr);
return rc;
device = (struct dasd_device *) cqr->startdev;
if (cqr->retries < 0) {
- DEV_MESSAGE(KERN_DEBUG, device,
- "start_IO: request %p (%02x/%i) - no retry left.",
- cqr, cqr->status, cqr->retries);
+ /* internal error 14 - start_IO run out of retries */
+ sprintf(errorstring, "14 %p", cqr);
+ dev_err(&device->cdev->dev, "An error occurred in the DASD "
+ "device driver, reason=%s\n", errorstring);
cqr->status = DASD_CQR_ERROR;
return -EIO;
}
cqr->startclk = get_clock();
cqr->starttime = jiffies;
cqr->retries--;
- rc = ccw_device_start(device->cdev, cqr->cpaddr, (long) cqr,
- cqr->lpm, 0);
+ if (cqr->cpmode == 1) {
+ rc = ccw_device_tm_start(device->cdev, cqr->cpaddr,
+ (long) cqr, cqr->lpm);
+ } else {
+ rc = ccw_device_start(device->cdev, cqr->cpaddr,
+ (long) cqr, cqr->lpm, 0);
+ }
switch (rc) {
case 0:
cqr->status = DASD_CQR_IN_IO;
cqr);
break;
case -EBUSY:
- DBF_DEV_EVENT(DBF_ERR, device, "%s",
+ DBF_DEV_EVENT(DBF_DEBUG, device, "%s",
"start_IO: device busy, retry later");
break;
case -ETIMEDOUT:
- DBF_DEV_EVENT(DBF_ERR, device, "%s",
+ DBF_DEV_EVENT(DBF_DEBUG, device, "%s",
"start_IO: request timeout, retry later");
break;
case -EACCES:
* Do a retry with all available pathes.
*/
cqr->lpm = LPM_ANYPATH;
- DBF_DEV_EVENT(DBF_ERR, device, "%s",
+ DBF_DEV_EVENT(DBF_DEBUG, device, "%s",
"start_IO: selected pathes gone,"
" retry on all pathes");
break;
case -ENODEV:
+ DBF_DEV_EVENT(DBF_DEBUG, device, "%s",
+ "start_IO: -ENODEV device gone, retry");
+ break;
case -EIO:
- DBF_DEV_EVENT(DBF_ERR, device, "%s",
- "start_IO: device gone, retry");
+ DBF_DEV_EVENT(DBF_DEBUG, device, "%s",
+ "start_IO: -EIO device gone, retry");
break;
default:
- DEV_MESSAGE(KERN_ERR, device,
- "line %d unknown RC=%d, please report"
- " to linux390@de.ibm.com", __LINE__, rc);
+ /* internal error 11 - unknown rc */
+ snprintf(errorstring, ERRORLENGTH, "11 %d", rc);
+ dev_err(&device->cdev->dev,
+ "An error occurred in the DASD device driver, "
+ "reason=%s\n", errorstring);
BUG();
break;
}
return;
cqr = (struct dasd_ccw_req *) intparm;
if (cqr->status != DASD_CQR_IN_IO) {
- MESSAGE(KERN_DEBUG,
+ DBF_EVENT(DBF_DEBUG,
"invalid status in handle_killed_request: "
"bus_id %s, status %02x",
dev_name(&cdev->dev), cqr->status);
if (device == NULL ||
device != dasd_device_from_cdev_locked(cdev) ||
strncmp(device->discipline->ebcname, (char *) &cqr->magic, 4)) {
- MESSAGE(KERN_DEBUG, "invalid device in request: bus_id %s",
- dev_name(&cdev->dev));
+ DBF_DEV_EVENT(DBF_DEBUG, device, "invalid device in request: "
+ "bus_id %s", dev_name(&cdev->dev));
return;
}
case -EIO:
break;
case -ETIMEDOUT:
- printk(KERN_WARNING"%s(%s): request timed out\n",
+ DBF_EVENT(DBF_WARNING, "%s(%s): request timed out\n",
__func__, dev_name(&cdev->dev));
break;
default:
- printk(KERN_WARNING"%s(%s): unknown error %ld\n",
+ DBF_EVENT(DBF_WARNING, "%s(%s): unknown error %ld\n",
__func__, dev_name(&cdev->dev), PTR_ERR(irb));
}
dasd_handle_killed_request(cdev, intparm);
now = get_clock();
- DBF_EVENT(DBF_ERR, "Interrupt: bus_id %s CS/DS %04x ip %08x",
- dev_name(&cdev->dev), ((irb->scsw.cmd.cstat << 8) |
- irb->scsw.cmd.dstat), (unsigned int) intparm);
-
/* check for unsolicited interrupts */
cqr = (struct dasd_ccw_req *) intparm;
- if (!cqr || ((irb->scsw.cmd.cc == 1) &&
- (irb->scsw.cmd.fctl & SCSW_FCTL_START_FUNC) &&
- (irb->scsw.cmd.stctl & SCSW_STCTL_STATUS_PEND))) {
+ if (!cqr || ((scsw_cc(&irb->scsw) == 1) &&
+ (scsw_fctl(&irb->scsw) & SCSW_FCTL_START_FUNC) &&
+ (scsw_stctl(&irb->scsw) & SCSW_STCTL_STATUS_PEND))) {
if (cqr && cqr->status == DASD_CQR_IN_IO)
cqr->status = DASD_CQR_QUEUED;
device = dasd_device_from_cdev_locked(cdev);
device = (struct dasd_device *) cqr->startdev;
if (!device ||
strncmp(device->discipline->ebcname, (char *) &cqr->magic, 4)) {
- MESSAGE(KERN_DEBUG, "invalid device in request: bus_id %s",
- dev_name(&cdev->dev));
+ DBF_DEV_EVENT(DBF_DEBUG, device, "invalid device in request: "
+ "bus_id %s", dev_name(&cdev->dev));
return;
}
/* Check for clear pending */
if (cqr->status == DASD_CQR_CLEAR_PENDING &&
- irb->scsw.cmd.fctl & SCSW_FCTL_CLEAR_FUNC) {
+ scsw_fctl(&irb->scsw) & SCSW_FCTL_CLEAR_FUNC) {
cqr->status = DASD_CQR_CLEARED;
dasd_device_clear_timer(device);
wake_up(&dasd_flush_wq);
return;
}
- /* check status - the request might have been killed by dyn detach */
+ /* check status - the request might have been killed by dyn detach */
if (cqr->status != DASD_CQR_IN_IO) {
- MESSAGE(KERN_DEBUG,
- "invalid status: bus_id %s, status %02x",
- dev_name(&cdev->dev), cqr->status);
+ DBF_DEV_EVENT(DBF_DEBUG, device, "invalid status: bus_id %s, "
+ "status %02x", dev_name(&cdev->dev), cqr->status);
return;
}
- DBF_DEV_EVENT(DBF_DEBUG, device, "Int: CS/DS 0x%04x for cqr %p",
- ((irb->scsw.cmd.cstat << 8) | irb->scsw.cmd.dstat), cqr);
+
next = NULL;
expires = 0;
- if (irb->scsw.cmd.dstat == (DEV_STAT_CHN_END | DEV_STAT_DEV_END) &&
- irb->scsw.cmd.cstat == 0 && !irb->esw.esw0.erw.cons) {
+ if (scsw_dstat(&irb->scsw) == (DEV_STAT_CHN_END | DEV_STAT_DEV_END) &&
+ scsw_cstat(&irb->scsw) == 0) {
/* request was completed successfully */
cqr->status = DASD_CQR_SUCCESS;
cqr->stopclk = now;
}
} else { /* error */
memcpy(&cqr->irb, irb, sizeof(struct irb));
+ /* log sense for every failed I/O to s390 debugfeature */
+ dasd_log_sense_dbf(cqr, irb);
if (device->features & DASD_FEATURE_ERPLOG) {
dasd_log_sense(cqr, irb);
}
+
/*
* If we don't want complex ERP for this request, then just
* reset this and retry it in the fastpath
*/
if (!test_bit(DASD_CQR_FLAGS_USE_ERP, &cqr->flags) &&
cqr->retries > 0) {
- DEV_MESSAGE(KERN_DEBUG, device,
- "default ERP in fastpath (%i retries left)",
- cqr->retries);
+ if (cqr->lpm == LPM_ANYPATH)
+ DBF_DEV_EVENT(DBF_DEBUG, device,
+ "default ERP in fastpath "
+ "(%i retries left)",
+ cqr->retries);
cqr->lpm = LPM_ANYPATH;
cqr->status = DASD_CQR_QUEUED;
next = cqr;
(!device->stopped)) {
if (device->discipline->start_IO(next) == 0)
expires = next->expires;
- else
- DEV_MESSAGE(KERN_DEBUG, device, "%s",
- "Interrupt fastpath "
- "failed!");
}
if (expires != 0)
dasd_device_set_timer(device, expires);
struct dasd_block *block;
void (*callback)(struct dasd_ccw_req *, void *data);
void *callback_data;
+ char errorstring[ERRORLENGTH];
list_for_each_safe(l, n, final_queue) {
cqr = list_entry(l, struct dasd_ccw_req, devlist);
cqr->status = DASD_CQR_TERMINATED;
break;
default:
- DEV_MESSAGE(KERN_ERR, device,
- "wrong cqr status in __dasd_process_final_queue "
- "for cqr %p, status %x",
- cqr, cqr->status);
+ /* internal error 12 - wrong cqr status*/
+ snprintf(errorstring, ERRORLENGTH, "12 %p %x02", cqr, cqr->status);
+ dev_err(&device->cdev->dev,
+ "An error occurred in the DASD device driver, "
+ "reason=%s\n", errorstring);
BUG();
}
if (cqr->callback != NULL)
(time_after_eq(jiffies, cqr->expires + cqr->starttime))) {
if (device->discipline->term_IO(cqr) != 0) {
/* Hmpf, try again in 5 sec */
- DEV_MESSAGE(KERN_ERR, device,
- "internal error - timeout (%is) expired "
- "for cqr %p, termination failed, "
- "retrying in 5s",
- (cqr->expires/HZ), cqr);
+ dev_err(&device->cdev->dev,
+ "cqr %p timed out (%is) but cannot be "
+ "ended, retrying in 5 s\n",
+ cqr, (cqr->expires/HZ));
cqr->expires += 5*HZ;
dasd_device_set_timer(device, 5*HZ);
} else {
- DEV_MESSAGE(KERN_ERR, device,
- "internal error - timeout (%is) expired "
- "for cqr %p (%i retries left)",
- (cqr->expires/HZ), cqr, cqr->retries);
+ dev_err(&device->cdev->dev,
+ "cqr %p timed out (%is), %i retries "
+ "remaining\n", cqr, (cqr->expires/HZ),
+ cqr->retries);
}
}
}
rc = device->discipline->term_IO(cqr);
if (rc) {
/* unable to terminate requeust */
- DEV_MESSAGE(KERN_ERR, device,
- "dasd flush ccw_queue is unable "
- " to terminate request %p",
- cqr);
+ dev_err(&device->cdev->dev,
+ "Flushing the DASD request queue "
+ "failed for request %p\n", cqr);
/* stop flush processing */
goto finished;
}
/* request in IO - terminate IO and release again */
rc = device->discipline->term_IO(cqr);
if (rc) {
- DEV_MESSAGE(KERN_ERR, device,
- "dasd_cancel_req is unable "
- " to terminate request %p, rc = %d",
- cqr, rc);
+ dev_err(&device->cdev->dev,
+ "Cancelling request %p failed with rc=%d\n",
+ cqr, rc);
} else {
cqr->stopclk = get_clock();
rc = 1;
if (cqr->status == DASD_CQR_DONE)
DBF_DEV_EVENT(DBF_NOTICE, device, "%s", "ERP successful");
else
- DEV_MESSAGE(KERN_ERR, device, "%s", "ERP unsuccessful");
+ dev_err(&device->cdev->dev, "ERP failed for the DASD\n");
erp_fn = device->discipline->erp_postaction(cqr);
erp_fn(cqr);
}
blk_queue_max_sectors(block->request_queue, max);
blk_queue_max_phys_segments(block->request_queue, -1L);
blk_queue_max_hw_segments(block->request_queue, -1L);
- blk_queue_max_segment_size(block->request_queue, -1L);
- blk_queue_segment_boundary(block->request_queue, -1L);
+ /* with page sized segments we can translate each segement into
+ * one idaw/tidaw
+ */
+ blk_queue_max_segment_size(block->request_queue, PAGE_SIZE);
+ blk_queue_segment_boundary(block->request_queue, PAGE_SIZE - 1);
blk_queue_ordered(block->request_queue, QUEUE_ORDERED_DRAIN, NULL);
}
}
if (dasd_probeonly) {
- DEV_MESSAGE(KERN_INFO, base, "%s",
- "No access to device due to probeonly mode");
+ dev_info(&base->cdev->dev,
+ "Accessing the DASD failed because it is in "
+ "probeonly mode\n");
rc = -EPERM;
goto out;
}
.owner = THIS_MODULE,
.open = dasd_open,
.release = dasd_release,
- .locked_ioctl = dasd_ioctl,
+ .ioctl = dasd_ioctl,
+ .compat_ioctl = dasd_ioctl,
.getgeo = dasd_getgeo,
};
ret = ccw_device_set_options(cdev, CCWDEV_DO_PATHGROUP);
if (ret) {
- printk(KERN_WARNING
+ DBF_EVENT(DBF_WARNING,
"dasd_generic_probe: could not set ccw-device options "
"for %s\n", dev_name(&cdev->dev));
return ret;
}
ret = dasd_add_sysfs_files(cdev);
if (ret) {
- printk(KERN_WARNING
+ DBF_EVENT(DBF_WARNING,
"dasd_generic_probe: could not add sysfs entries "
"for %s\n", dev_name(&cdev->dev));
return ret;
(dasd_autodetect && dasd_busid_known(dev_name(&cdev->dev)) != 0))
ret = ccw_device_set_online(cdev);
if (ret)
- printk(KERN_WARNING
- "dasd_generic_probe: could not initially "
- "online ccw-device %s; return code: %d\n",
+ pr_warning("%s: Setting the DASD online failed with rc=%d\n",
dev_name(&cdev->dev), ret);
return 0;
}
discipline = base_discipline;
if (device->features & DASD_FEATURE_USEDIAG) {
if (!dasd_diag_discipline_pointer) {
- printk (KERN_WARNING
- "dasd_generic couldn't online device %s "
- "- discipline DIAG not available\n",
- dev_name(&cdev->dev));
+ pr_warning("%s Setting the DASD online failed because "
+ "of missing DIAG discipline\n",
+ dev_name(&cdev->dev));
dasd_delete_device(device);
return -ENODEV;
}
/* check_device will allocate block device if necessary */
rc = discipline->check_device(device);
if (rc) {
- printk (KERN_WARNING
- "dasd_generic couldn't online device %s "
- "with discipline %s rc=%i\n",
- dev_name(&cdev->dev), discipline->name, rc);
+ pr_warning("%s Setting the DASD online with discipline %s "
+ "failed with rc=%i\n",
+ dev_name(&cdev->dev), discipline->name, rc);
module_put(discipline->owner);
module_put(base_discipline->owner);
dasd_delete_device(device);
dasd_set_target_state(device, DASD_STATE_ONLINE);
if (device->state <= DASD_STATE_KNOWN) {
- printk (KERN_WARNING
- "dasd_generic discipline not found for %s\n",
- dev_name(&cdev->dev));
+ pr_warning("%s Setting the DASD online failed because of a "
+ "missing discipline\n", dev_name(&cdev->dev));
rc = -ENODEV;
dasd_set_target_state(device, DASD_STATE_NEW);
if (device->block)
open_count = atomic_read(&device->block->open_count);
if (open_count > max_count) {
if (open_count > 0)
- printk(KERN_WARNING "Can't offline dasd "
- "device with open count = %i.\n",
- open_count);
+ pr_warning("%s: The DASD cannot be set offline "
+ "with open count %i\n",
+ dev_name(&cdev->dev), open_count);
else
- printk(KERN_WARNING "%s",
- "Can't offline dasd device due "
- "to internal use\n");
+ pr_warning("%s: The DASD cannot be set offline "
+ "while it is in use\n",
+ dev_name(&cdev->dev));
clear_bit(DASD_FLAG_OFFLINE, &device->flags);
dasd_put_device(device);
return -EBUSY;
cqr = dasd_smalloc_request(magic, 1 /* RDC */, rdc_buffer_size, device);
if (IS_ERR(cqr)) {
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "Could not allocate RDC request");
+ /* internal error 13 - Allocating the RDC request failed*/
+ dev_err(&device->cdev->dev,
+ "An error occurred in the DASD device driver, "
+ "reason=%s\n", "13");
return cqr;
}
}
EXPORT_SYMBOL_GPL(dasd_generic_read_dev_chars);
+/*
+ * In command mode and transport mode we need to look for sense
+ * data in different places. The sense data itself is allways
+ * an array of 32 bytes, so we can unify the sense data access
+ * for both modes.
+ */
+char *dasd_get_sense(struct irb *irb)
+{
+ struct tsb *tsb = NULL;
+ char *sense = NULL;
+
+ if (scsw_is_tm(&irb->scsw) && (irb->scsw.tm.fcxs == 0x01)) {
+ if (irb->scsw.tm.tcw)
+ tsb = tcw_get_tsb((struct tcw *)(unsigned long)
+ irb->scsw.tm.tcw);
+ if (tsb && tsb->length == 64 && tsb->flags)
+ switch (tsb->flags & 0x07) {
+ case 1: /* tsa_iostat */
+ sense = tsb->tsa.iostat.sense;
+ break;
+ case 2: /* tsa_ddpc */
+ sense = tsb->tsa.ddpc.sense;
+ break;
+ default:
+ /* currently we don't use interrogate data */
+ break;
+ }
+ } else if (irb->esw.esw0.erw.cons) {
+ sense = irb->ecw;
+ }
+ return sense;
+}
+EXPORT_SYMBOL_GPL(dasd_get_sense);
+
static int __init dasd_init(void)
{
int rc;
return 0;
failed:
- MESSAGE(KERN_INFO, "%s", "initialization not performed due to errors");
+ pr_info("The DASD device driver could not be initialized\n");
dasd_exit();
return rc;
}
*
*/
+#define KMSG_COMPONENT "dasd"
+
#include <linux/timer.h>
#include <linux/slab.h>
#include <asm/idals.h>
struct dasd_device *device = erp->startdev;
unsigned long flags;
- DEV_MESSAGE(KERN_INFO, device,
+ DBF_DEV_EVENT(DBF_INFO, device,
"blocking request queue for %is", expires/HZ);
spin_lock_irqsave(get_ccwdev_lock(device->cdev), flags);
} else {
/* issue a message and wait for 'device ready' interrupt */
- DEV_MESSAGE(KERN_ERR, device, "%s",
+ dev_err(&device->cdev->dev,
"is offline or not installed - "
- "INTERVENTION REQUIRED!!");
+ "INTERVENTION REQUIRED!!\n");
dasd_3990_erp_block_queue(erp, 60*HZ);
}
if ((erp->lpm & opm) != 0x00) {
- DEV_MESSAGE(KERN_DEBUG, device,
+ DBF_DEV_EVENT(DBF_WARNING, device,
"try alternate lpm=%x (lpum=%x / opm=%x)",
erp->lpm, erp->irb.esw.esw0.sublog.lpum, opm);
erp->status = DASD_CQR_FILLED;
erp->retries = 10;
} else {
- DEV_MESSAGE(KERN_ERR, device,
- "No alternate channel path left (lpum=%x / "
- "opm=%x) -> permanent error",
- erp->irb.esw.esw0.sublog.lpum, opm);
+ dev_err(&device->cdev->dev,
+ "The DASD cannot be reached on any path (lpum=%x"
+ "/opm=%x)\n", erp->irb.esw.esw0.sublog.lpum, opm);
/* post request with permanent error */
erp->status = DASD_CQR_FAILED;
sizeof(struct DCTL_data),
device);
if (IS_ERR(dctl_cqr)) {
- DEV_MESSAGE(KERN_ERR, device, "%s",
- "Unable to allocate DCTL-CQR");
+ dev_err(&device->cdev->dev,
+ "Unable to allocate DCTL-CQR\n");
erp->status = DASD_CQR_FAILED;
return erp;
}
/* interrupt (this enables easier enqueing of the cqr) */
if (erp->function != dasd_3990_erp_action_4) {
- DEV_MESSAGE(KERN_INFO, device, "%s",
+ DBF_DEV_EVENT(DBF_INFO, device, "%s",
"dasd_3990_erp_action_4: first time retry");
erp->retries = 256;
} else {
if (sense && (sense[25] == 0x1D)) { /* state change pending */
- DEV_MESSAGE(KERN_INFO, device,
+ DBF_DEV_EVENT(DBF_INFO, device,
"waiting for state change pending "
"interrupt, %d retries left",
erp->retries);
dasd_3990_erp_block_queue(erp, 30*HZ);
} else if (sense && (sense[25] == 0x1E)) { /* busy */
- DEV_MESSAGE(KERN_INFO, device,
+ DBF_DEV_EVENT(DBF_INFO, device,
"busy - redriving request later, "
"%d retries left",
erp->retries);
dasd_3990_erp_block_queue(erp, HZ);
} else {
-
/* no state change pending - retry */
- DEV_MESSAGE (KERN_INFO, device,
+ DBF_DEV_EVENT(DBF_INFO, device,
"redriving request immediately, "
"%d retries left",
erp->retries);
struct dasd_device *device = erp->startdev;
char msg_format = (sense[7] & 0xF0);
char msg_no = (sense[7] & 0x0F);
+ char errorstring[ERRORLENGTH];
switch (msg_format) {
case 0x00: /* Format 0 - Program or System Checks */
case 0x00: /* No Message */
break;
case 0x01:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 0 - Invalid Command");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 0 - Invalid Command\n");
break;
case 0x02:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 0 - Invalid Command "
- "Sequence");
+ "Sequence\n");
break;
case 0x03:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 0 - CCW Count less than "
- "required");
+ "required\n");
break;
case 0x04:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 0 - Invalid Parameter");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 0 - Invalid Parameter\n");
break;
case 0x05:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 0 - Diagnostic of Sepecial"
- " Command Violates File Mask");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 0 - Diagnostic of Special"
+ " Command Violates File Mask\n");
break;
case 0x07:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 0 - Channel Returned with "
- "Incorrect retry CCW");
+ "Incorrect retry CCW\n");
break;
case 0x08:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 0 - Reset Notification");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 0 - Reset Notification\n");
break;
case 0x09:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 0 - Storage Path Restart");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 0 - Storage Path Restart\n");
break;
case 0x0A:
- DEV_MESSAGE(KERN_WARNING, device,
+ dev_warn(&device->cdev->dev,
"FORMAT 0 - Channel requested "
- "... %02x", sense[8]);
+ "... %02x\n", sense[8]);
break;
case 0x0B:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 0 - Invalid Defective/"
- "Alternate Track Pointer");
+ "Alternate Track Pointer\n");
break;
case 0x0C:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 0 - DPS Installation "
- "Check");
+ "Check\n");
break;
case 0x0E:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 0 - Command Invalid on "
- "Secondary Address");
+ "Secondary Address\n");
break;
case 0x0F:
- DEV_MESSAGE(KERN_WARNING, device,
+ dev_warn(&device->cdev->dev,
"FORMAT 0 - Status Not As "
- "Required: reason %02x", sense[8]);
+ "Required: reason %02x\n",
+ sense[8]);
break;
default:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 0 - Reseved");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 0 - Reserved\n");
}
} else {
switch (msg_no) {
case 0x00: /* No Message */
break;
case 0x01:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 0 - Device Error Source");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 0 - Device Error "
+ "Source\n");
break;
case 0x02:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 0 - Reserved");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 0 - Reserved\n");
break;
case 0x03:
- DEV_MESSAGE(KERN_WARNING, device,
+ dev_warn(&device->cdev->dev,
"FORMAT 0 - Device Fenced - "
- "device = %02x", sense[4]);
+ "device = %02x\n", sense[4]);
break;
case 0x04:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 0 - Data Pinned for "
- "Device");
+ "Device\n");
break;
default:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 0 - Reserved");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 0 - Reserved\n");
}
}
break;
case 0x00: /* No Message */
break;
case 0x01:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 1 - Device Status 1 not as "
- "expected");
+ "expected\n");
break;
case 0x03:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 1 - Index missing");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 1 - Index missing\n");
break;
case 0x04:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 1 - Interruption cannot be reset");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 1 - Interruption cannot be "
+ "reset\n");
break;
case 0x05:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 1 - Device did not respond to "
- "selection");
+ "selection\n");
break;
case 0x06:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 1 - Device check-2 error or Set "
- "Sector is not complete");
+ "Sector is not complete\n");
break;
case 0x07:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 1 - Head address does not "
- "compare");
+ "compare\n");
break;
case 0x08:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 1 - Device status 1 not valid");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 1 - Device status 1 not valid\n");
break;
case 0x09:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 1 - Device not ready");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 1 - Device not ready\n");
break;
case 0x0A:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 1 - Track physical address did "
- "not compare");
+ "not compare\n");
break;
case 0x0B:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 1 - Missing device address bit");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 1 - Missing device address bit\n");
break;
case 0x0C:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 1 - Drive motor switch is off");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 1 - Drive motor switch is off\n");
break;
case 0x0D:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 1 - Seek incomplete");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 1 - Seek incomplete\n");
break;
case 0x0E:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 1 - Cylinder address did not "
- "compare");
+ "compare\n");
break;
case 0x0F:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 1 - Offset active cannot be "
- "reset");
+ "reset\n");
break;
default:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 1 - Reserved");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 1 - Reserved\n");
}
break;
case 0x20: /* Format 2 - 3990 Equipment Checks */
switch (msg_no) {
case 0x08:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 2 - 3990 check-2 error");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 2 - 3990 check-2 error\n");
break;
case 0x0E:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 2 - Support facility errors");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 2 - Support facility errors\n");
break;
case 0x0F:
- DEV_MESSAGE(KERN_WARNING, device,
- "FORMAT 2 - Microcode detected error %02x",
- sense[8]);
+ dev_warn(&device->cdev->dev,
+ "FORMAT 2 - Microcode detected error "
+ "%02x\n",
+ sense[8]);
break;
default:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 2 - Reserved");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 2 - Reserved\n");
}
break;
case 0x30: /* Format 3 - 3990 Control Checks */
switch (msg_no) {
case 0x0F:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 3 - Allegiance terminated");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 3 - Allegiance terminated\n");
break;
default:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 3 - Reserved");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 3 - Reserved\n");
}
break;
case 0x40: /* Format 4 - Data Checks */
switch (msg_no) {
case 0x00:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 4 - Home address area error");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 4 - Home address area error\n");
break;
case 0x01:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 4 - Count area error");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 4 - Count area error\n");
break;
case 0x02:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 4 - Key area error");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 4 - Key area error\n");
break;
case 0x03:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 4 - Data area error");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 4 - Data area error\n");
break;
case 0x04:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 4 - No sync byte in home address "
- "area");
+ "area\n");
break;
case 0x05:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 4 - No sync byte in count address "
- "area");
+ "area\n");
break;
case 0x06:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 4 - No sync byte in key area");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 4 - No sync byte in key area\n");
break;
case 0x07:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 4 - No sync byte in data area");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 4 - No sync byte in data area\n");
break;
case 0x08:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 4 - Home address area error; "
- "offset active");
+ "offset active\n");
break;
case 0x09:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 4 - Count area error; offset "
- "active");
+ "active\n");
break;
case 0x0A:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 4 - Key area error; offset "
- "active");
+ "active\n");
break;
case 0x0B:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 4 - Data area error; "
- "offset active");
+ "offset active\n");
break;
case 0x0C:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 4 - No sync byte in home "
- "address area; offset active");
+ "address area; offset active\n");
break;
case 0x0D:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 4 - No syn byte in count "
- "address area; offset active");
+ "address area; offset active\n");
break;
case 0x0E:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 4 - No sync byte in key area; "
- "offset active");
+ "offset active\n");
break;
case 0x0F:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 4 - No syn byte in data area; "
- "offset active");
+ "offset active\n");
break;
default:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 4 - Reserved");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 4 - Reserved\n");
}
break;
case 0x50: /* Format 5 - Data Check with displacement information */
switch (msg_no) {
case 0x00:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 5 - Data Check in the "
- "home address area");
+ "home address area\n");
break;
case 0x01:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 5 - Data Check in the count area");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 5 - Data Check in the count "
+ "area\n");
break;
case 0x02:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 5 - Data Check in the key area");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 5 - Data Check in the key area\n");
break;
case 0x03:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 5 - Data Check in the data area");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 5 - Data Check in the data "
+ "area\n");
break;
case 0x08:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 5 - Data Check in the "
- "home address area; offset active");
+ "home address area; offset active\n");
break;
case 0x09:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 5 - Data Check in the count area; "
- "offset active");
+ "offset active\n");
break;
case 0x0A:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 5 - Data Check in the key area; "
- "offset active");
+ "offset active\n");
break;
case 0x0B:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 5 - Data Check in the data area; "
- "offset active");
+ "offset active\n");
break;
default:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 5 - Reserved");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 5 - Reserved\n");
}
break;
case 0x60: /* Format 6 - Usage Statistics/Overrun Errors */
switch (msg_no) {
case 0x00:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 6 - Overrun on channel A");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 6 - Overrun on channel A\n");
break;
case 0x01:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 6 - Overrun on channel B");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 6 - Overrun on channel B\n");
break;
case 0x02:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 6 - Overrun on channel C");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 6 - Overrun on channel C\n");
break;
case 0x03:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 6 - Overrun on channel D");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 6 - Overrun on channel D\n");
break;
case 0x04:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 6 - Overrun on channel E");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 6 - Overrun on channel E\n");
break;
case 0x05:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 6 - Overrun on channel F");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 6 - Overrun on channel F\n");
break;
case 0x06:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 6 - Overrun on channel G");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 6 - Overrun on channel G\n");
break;
case 0x07:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 6 - Overrun on channel H");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 6 - Overrun on channel H\n");
break;
default:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 6 - Reserved");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 6 - Reserved\n");
}
break;
case 0x70: /* Format 7 - Device Connection Control Checks */
switch (msg_no) {
case 0x00:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 7 - RCC initiated by a connection "
- "check alert");
+ "check alert\n");
break;
case 0x01:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 7 - RCC 1 sequence not "
- "successful");
+ "successful\n");
break;
case 0x02:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 7 - RCC 1 and RCC 2 sequences not "
- "successful");
+ "successful\n");
break;
case 0x03:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 7 - Invalid tag-in during "
- "selection sequence");
+ "selection sequence\n");
break;
case 0x04:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 7 - extra RCC required");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 7 - extra RCC required\n");
break;
case 0x05:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 7 - Invalid DCC selection "
- "response or timeout");
+ "response or timeout\n");
break;
case 0x06:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 7 - Missing end operation; device "
- "transfer complete");
+ "transfer complete\n");
break;
case 0x07:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 7 - Missing end operation; device "
- "transfer incomplete");
+ "transfer incomplete\n");
break;
case 0x08:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 7 - Invalid tag-in for an "
- "immediate command sequence");
+ "immediate command sequence\n");
break;
case 0x09:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 7 - Invalid tag-in for an "
- "extended command sequence");
+ "extended command sequence\n");
break;
case 0x0A:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 7 - 3990 microcode time out when "
- "stopping selection");
+ "stopping selection\n");
break;
case 0x0B:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 7 - No response to selection "
- "after a poll interruption");
+ "after a poll interruption\n");
break;
case 0x0C:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 7 - Permanent path error (DASD "
- "controller not available)");
+ "controller not available)\n");
break;
case 0x0D:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 7 - DASD controller not available"
- " on disconnected command chain");
+ " on disconnected command chain\n");
break;
default:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 7 - Reserved");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 7 - Reserved\n");
}
break;
switch (msg_no) {
case 0x00: /* No Message */
case 0x01:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 8 - Error correction code "
- "hardware fault");
+ "hardware fault\n");
break;
case 0x03:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 8 - Unexpected end operation "
- "response code");
+ "response code\n");
break;
case 0x04:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 8 - End operation with transfer "
- "count not zero");
+ "count not zero\n");
break;
case 0x05:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 8 - End operation with transfer "
- "count zero");
+ "count zero\n");
break;
case 0x06:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 8 - DPS checks after a system "
- "reset or selective reset");
+ "reset or selective reset\n");
break;
case 0x07:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 8 - DPS cannot be filled");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 8 - DPS cannot be filled\n");
break;
case 0x08:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 8 - Short busy time-out during "
- "device selection");
+ "device selection\n");
break;
case 0x09:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 8 - DASD controller failed to "
- "set or reset the long busy latch");
+ "set or reset the long busy latch\n");
break;
case 0x0A:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 8 - No interruption from device "
- "during a command chain");
+ "during a command chain\n");
break;
default:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 8 - Reserved");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 8 - Reserved\n");
}
break;
case 0x00:
break; /* No Message */
case 0x06:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 9 - Device check-2 error");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 9 - Device check-2 error\n");
break;
case 0x07:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 9 - Head address did not compare");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 9 - Head address did not "
+ "compare\n");
break;
case 0x0A:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 9 - Track physical address did "
- "not compare while oriented");
+ "not compare while oriented\n");
break;
case 0x0E:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT 9 - Cylinder address did not "
- "compare");
+ "compare\n");
break;
default:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT 9 - Reserved");
+ dev_warn(&device->cdev->dev,
+ "FORMAT 9 - Reserved\n");
}
break;
case 0xF0: /* Format F - Cache Storage Checks */
switch (msg_no) {
case 0x00:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT F - Operation Terminated");
+ dev_warn(&device->cdev->dev,
+ "FORMAT F - Operation Terminated\n");
break;
case 0x01:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT F - Subsystem Processing Error");
+ dev_warn(&device->cdev->dev,
+ "FORMAT F - Subsystem Processing Error\n");
break;
case 0x02:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT F - Cache or nonvolatile storage "
- "equipment failure");
+ "equipment failure\n");
break;
case 0x04:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT F - Caching terminated");
+ dev_warn(&device->cdev->dev,
+ "FORMAT F - Caching terminated\n");
break;
case 0x06:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT F - Cache fast write access not "
- "authorized");
+ "authorized\n");
break;
case 0x07:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT F - Track format incorrect");
+ dev_warn(&device->cdev->dev,
+ "FORMAT F - Track format incorrect\n");
break;
case 0x09:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT F - Caching reinitiated");
+ dev_warn(&device->cdev->dev,
+ "FORMAT F - Caching reinitiated\n");
break;
case 0x0A:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT F - Nonvolatile storage "
- "terminated");
+ "terminated\n");
break;
case 0x0B:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT F - Volume is suspended duplex");
+ dev_warn(&device->cdev->dev,
+ "FORMAT F - Volume is suspended duplex\n");
/* call extended error reporting (EER) */
dasd_eer_write(device, erp->refers,
DASD_EER_PPRCSUSPEND);
break;
case 0x0C:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT F - Subsystem status connot be "
- "determined");
+ dev_warn(&device->cdev->dev,
+ "FORMAT F - Subsystem status cannot be "
+ "determined\n");
break;
case 0x0D:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ dev_warn(&device->cdev->dev,
"FORMAT F - Caching status reset to "
- "default");
+ "default\n");
break;
case 0x0E:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT F - DASD Fast Write inhibited");
+ dev_warn(&device->cdev->dev,
+ "FORMAT F - DASD Fast Write inhibited\n");
break;
default:
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "FORMAT D - Reserved");
+ dev_warn(&device->cdev->dev,
+ "FORMAT D - Reserved\n");
}
break;
- default: /* unknown message format - should not happen */
- DEV_MESSAGE (KERN_WARNING, device,
- "unknown message format %02x",
- msg_format);
+ default: /* unknown message format - should not happen
+ internal error 03 - unknown message format */
+ snprintf(errorstring, ERRORLENGTH, "03 %x02", msg_format);
+ dev_err(&device->cdev->dev,
+ "An error occurred in the DASD device driver, "
+ "reason=%s\n", errorstring);
break;
} /* end switch message format */
/* env data present (ACTION 10 - retry should work) */
if (sense[2] & SNS2_ENV_DATA_PRESENT) {
- DEV_MESSAGE(KERN_DEBUG, device, "%s",
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"Command Reject - environmental data present");
dasd_3990_handle_env_data(erp, sense);
erp->retries = 5;
} else {
- /* fatal error - set status to FAILED */
- DEV_MESSAGE(KERN_ERR, device, "%s",
- "Command Reject - Fatal error");
+ /* fatal error - set status to FAILED
+ internal error 09 - Command Reject */
+ dev_err(&device->cdev->dev, "An error occurred in the DASD "
+ "device driver, reason=%s\n", "09");
erp = dasd_3990_erp_cleanup(erp, DASD_CQR_FAILED);
}
} else {
/* issue a message and wait for 'device ready' interrupt */
- DEV_MESSAGE(KERN_DEBUG, device, "%s",
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"bus out parity error or BOPC requested by "
"channel");
erp->function = dasd_3990_erp_equip_check;
if (sense[1] & SNS1_WRITE_INHIBITED) {
+ dev_info(&device->cdev->dev,
+ "Write inhibited path encountered\n");
- DEV_MESSAGE(KERN_DEBUG, device, "%s",
- "Write inhibited path encountered");
-
- /* vary path offline */
- DEV_MESSAGE(KERN_ERR, device, "%s",
- "Path should be varied off-line. "
- "This is not implemented yet \n - please report "
- "to linux390@de.ibm.com");
+ /* vary path offline
+ internal error 04 - Path should be varied off-line.*/
+ dev_err(&device->cdev->dev, "An error occurred in the DASD "
+ "device driver, reason=%s\n", "04");
erp = dasd_3990_erp_action_1(erp);
} else if (sense[2] & SNS2_ENV_DATA_PRESENT) {
- DEV_MESSAGE(KERN_DEBUG, device, "%s",
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"Equipment Check - " "environmental data present");
dasd_3990_handle_env_data(erp, sense);
} else if (sense[1] & SNS1_PERM_ERR) {
- DEV_MESSAGE(KERN_DEBUG, device, "%s",
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"Equipment Check - retry exhausted or "
"undesirable");
} else {
/* all other equipment checks - Action 5 */
/* rest is done when retries == 0 */
- DEV_MESSAGE(KERN_DEBUG, device, "%s",
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"Equipment check or processing error");
erp = dasd_3990_erp_action_5(erp);
if (sense[2] & SNS2_CORRECTABLE) { /* correctable data check */
/* issue message that the data has been corrected */
- DEV_MESSAGE(KERN_EMERG, device, "%s",
+ dev_emerg(&device->cdev->dev,
"Data recovered during retry with PCI "
- "fetch mode active");
+ "fetch mode active\n");
/* not possible to handle this situation in Linux */
panic("No way to inform application about the possibly "
} else if (sense[2] & SNS2_ENV_DATA_PRESENT) {
- DEV_MESSAGE(KERN_DEBUG, device, "%s",
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"Uncorrectable data check recovered secondary "
"addr of duplex pair");
} else if (sense[1] & SNS1_PERM_ERR) {
- DEV_MESSAGE(KERN_DEBUG, device, "%s",
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"Uncorrectable data check with internal "
"retry exhausted");
} else {
/* all other data checks */
- DEV_MESSAGE(KERN_DEBUG, device, "%s",
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"Uncorrectable data check with retry count "
"exhausted...");
erp->function = dasd_3990_erp_overrun;
- DEV_MESSAGE(KERN_DEBUG, device, "%s",
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"Overrun - service overrun or overrun"
" error requested by channel");
if (sense[2] & SNS2_ENV_DATA_PRESENT) {
- DEV_MESSAGE(KERN_DEBUG, device, "%s",
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"Track format error when destaging or "
"staging data");
erp = dasd_3990_erp_action_4(erp, sense);
} else {
- DEV_MESSAGE(KERN_ERR, device, "%s",
- "Invalid Track Format - Fatal error");
+ /* internal error 06 - The track format is not valid*/
+ dev_err(&device->cdev->dev,
+ "An error occurred in the DASD device driver, "
+ "reason=%s\n", "06");
erp = dasd_3990_erp_cleanup(erp, DASD_CQR_FAILED);
}
struct dasd_device *device = default_erp->startdev;
- DEV_MESSAGE(KERN_ERR, device, "%s",
- "End-of-Cylinder - must never happen");
+ dev_err(&device->cdev->dev,
+ "The cylinder data for accessing the DASD is inconsistent\n");
/* implement action 7 - BUG */
return dasd_3990_erp_cleanup(default_erp, DASD_CQR_FAILED);
erp->function = dasd_3990_erp_env_data;
- DEV_MESSAGE(KERN_DEBUG, device, "%s", "Environmental data present");
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s", "Environmental data present");
dasd_3990_handle_env_data(erp, sense);
struct dasd_device *device = default_erp->startdev;
- DEV_MESSAGE(KERN_ERR, device, "%s",
- "No Record Found - Fatal error ");
+ dev_err(&device->cdev->dev,
+ "The specified record was not found\n");
return dasd_3990_erp_cleanup(default_erp, DASD_CQR_FAILED);
struct dasd_device *device = erp->startdev;
- DEV_MESSAGE(KERN_ERR, device, "%s", "File Protected");
+ dev_err(&device->cdev->dev, "Accessing the DASD failed because of "
+ "a hardware error\n");
return dasd_3990_erp_cleanup(erp, DASD_CQR_FAILED);
if (cqr->block &&
(cqr->block->base != cqr->startdev)) {
if (cqr->startdev->features & DASD_FEATURE_ERPLOG) {
- DEV_MESSAGE(KERN_ERR, cqr->startdev,
+ DBF_DEV_EVENT(DBF_ERR, cqr->startdev,
"ERP on alias device for request %p,"
" recover on base device %s", cqr,
dev_name(&cqr->block->base->cdev->dev));
erp->retries = 256;
erp->function = dasd_3990_erp_action_10_32;
- DEV_MESSAGE(KERN_DEBUG, device, "%s", "Perform logging requested");
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s", "Perform logging requested");
return erp;
char *LO_data; /* LO_eckd_data_t */
struct ccw1 *ccw, *oldccw;
- DEV_MESSAGE(KERN_DEBUG, device, "%s",
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"Write not finished because of unexpected condition");
default_erp->function = dasd_3990_erp_action_1B_32;
cqr = cqr->refers;
}
+ if (scsw_is_tm(&cqr->irb.scsw)) {
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
+ "32 bit sense, action 1B is not defined"
+ " in transport mode - just retry");
+ return default_erp;
+ }
+
/* for imprecise ending just do default erp */
if (sense[1] & 0x01) {
-
- DEV_MESSAGE(KERN_DEBUG, device, "%s",
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"Imprecise ending is set - just retry");
return default_erp;
cpa = default_erp->refers->irb.scsw.cmd.cpa;
if (cpa == 0) {
-
- DEV_MESSAGE(KERN_DEBUG, device, "%s",
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"Unable to determine address of the CCW "
"to be restarted");
sizeof(struct LO_eckd_data), device);
if (IS_ERR(erp)) {
- DEV_MESSAGE(KERN_ERR, device, "%s", "Unable to allocate ERP");
+ /* internal error 01 - Unable to allocate ERP */
+ dev_err(&device->cdev->dev, "An error occurred in the DASD "
+ "device driver, reason=%s\n", "01");
return dasd_3990_erp_cleanup(default_erp, DASD_CQR_FAILED);
}
oldccw = cqr->cpaddr;
if (oldccw->cmd_code == DASD_ECKD_CCW_PFX) {
PFX_data = cqr->data;
- memcpy(DE_data, &PFX_data->define_extend,
+ memcpy(DE_data, &PFX_data->define_extent,
sizeof(struct DE_eckd_data));
} else
memcpy(DE_data, cqr->data, sizeof(struct DE_eckd_data));
LO_data = erp->data + sizeof(struct DE_eckd_data);
if ((sense[3] == 0x01) && (LO_data[1] & 0x01)) {
-
- DEV_MESSAGE(KERN_ERR, device, "%s",
- "BUG - this should not happen");
-
+ /* should not */
return dasd_3990_erp_cleanup(default_erp, DASD_CQR_FAILED);
}
char *LO_data; /* struct LO_eckd_data */
struct ccw1 *ccw;
- DEV_MESSAGE(KERN_DEBUG, device, "%s",
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"Write not finished because of unexpected condition"
" - follow on");
cqr = cqr->refers;
}
+ if (scsw_is_tm(&cqr->irb.scsw)) {
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
+ "32 bit sense, action 1B, update,"
+ " in transport mode - just retry");
+ return previous_erp;
+ }
+
/* for imprecise ending just do default erp */
if (sense[1] & 0x01) {
-
- DEV_MESSAGE(KERN_DEBUG, device, "%s",
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"Imprecise ending is set - just retry");
previous_erp->status = DASD_CQR_FILLED;
cpa = previous_erp->irb.scsw.cmd.cpa;
if (cpa == 0) {
-
- DEV_MESSAGE(KERN_DEBUG, device, "%s",
- "Unable to determine address of the CCW "
- "to be restarted");
+ /* internal error 02 -
+ Unable to determine address of the CCW to be restarted */
+ dev_err(&device->cdev->dev, "An error occurred in the DASD "
+ "device driver, reason=%s\n", "02");
previous_erp->status = DASD_CQR_FAILED;
LO_data = erp->data + sizeof(struct DE_eckd_data);
if ((sense[3] == 0x01) && (LO_data[1] & 0x01)) {
-
- DEV_MESSAGE(KERN_ERR, device, "%s",
- "BUG - this should not happen");
-
+ /* should not happen */
previous_erp->status = DASD_CQR_FAILED;
return previous_erp;
if ((sense[25] & DASD_SENSE_BIT_1) && (sense[26] & DASD_SENSE_BIT_2)) {
- /* set to suspended duplex state then restart */
+ /* set to suspended duplex state then restart
+ internal error 05 - Set device to suspended duplex state
+ should be done */
struct dasd_device *device = erp->startdev;
-
- DEV_MESSAGE(KERN_ERR, device, "%s",
- "Set device to suspended duplex state should be "
- "done!\n"
- "This is not implemented yet (for compound ERP)"
- " - please report to linux390@de.ibm.com");
+ dev_err(&device->cdev->dev,
+ "An error occurred in the DASD device driver, "
+ "reason=%s\n", "05");
}
{
/* print message according to log or message to operator mode */
if ((sense[24] & DASD_SIM_MSG_TO_OP) || (sense[1] & 0x10)) {
-
/* print SIM SRC from RefCode */
- DEV_MESSAGE(KERN_ERR, device, "SIM - SRC: "
- "%02x%02x%02x%02x", sense[22],
+ dev_err(&device->cdev->dev, "SIM - SRC: "
+ "%02x%02x%02x%02x\n", sense[22],
sense[23], sense[11], sense[12]);
} else if (sense[24] & DASD_SIM_LOG) {
/* print SIM SRC Refcode */
- DEV_MESSAGE(KERN_WARNING, device, "SIM - SRC: "
- "%02x%02x%02x%02x", sense[22],
+ dev_warn(&device->cdev->dev, "log SIM - SRC: "
+ "%02x%02x%02x%02x\n", sense[22],
sense[23], sense[11], sense[12]);
}
}
switch (sense[25]) {
case 0x00: /* success - use default ERP for retries */
- DEV_MESSAGE(KERN_DEBUG, device, "%s",
+ DBF_DEV_EVENT(DBF_DEBUG, device, "%s",
"ERP called for successful request"
" - just retry");
break;
case 0x01: /* fatal error */
- DEV_MESSAGE(KERN_ERR, device, "%s",
- "Retry not recommended - Fatal error");
+ dev_err(&device->cdev->dev,
+ "ERP failed for the DASD\n");
erp = dasd_3990_erp_cleanup(erp, DASD_CQR_FAILED);
break;
erp = dasd_3990_erp_int_req(erp);
break;
- case 0x0F: /* length mismatch during update write command */
- DEV_MESSAGE(KERN_ERR, device, "%s",
- "update write command error - should not "
- "happen;\n"
- "Please send this message together with "
- "the above sense data to linux390@de."
- "ibm.com");
+ case 0x0F: /* length mismatch during update write command
+ internal error 08 - update write command error*/
+ dev_err(&device->cdev->dev, "An error occurred in the "
+ "DASD device driver, reason=%s\n", "08");
erp = dasd_3990_erp_cleanup(erp, DASD_CQR_FAILED);
break;
erp = dasd_3990_erp_action_10_32(erp, sense);
break;
- case 0x15: /* next track outside defined extend */
- DEV_MESSAGE(KERN_ERR, device, "%s",
- "next track outside defined extend - "
- "should not happen;\n"
- "Please send this message together with "
- "the above sense data to linux390@de."
- "ibm.com");
+ case 0x15: /* next track outside defined extend
+ internal error 07 - The next track is not
+ within the defined storage extent */
+ dev_err(&device->cdev->dev,
+ "An error occurred in the DASD device driver, "
+ "reason=%s\n", "07");
erp = dasd_3990_erp_cleanup(erp, DASD_CQR_FAILED);
break;
break;
case 0x1C: /* invalid data */
- DEV_MESSAGE(KERN_EMERG, device, "%s",
+ dev_emerg(&device->cdev->dev,
"Data recovered during retry with PCI "
- "fetch mode active");
+ "fetch mode active\n");
/* not possible to handle this situation in Linux */
panic
break;
case 0x1D: /* state-change pending */
- DEV_MESSAGE(KERN_DEBUG, device, "%s",
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"A State change pending condition exists "
"for the subsystem or device");
break;
case 0x1E: /* busy */
- DEV_MESSAGE(KERN_DEBUG, device, "%s",
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"Busy condition exists "
"for the subsystem or device");
erp = dasd_3990_erp_action_4(erp, sense);
{
struct dasd_device *device = erp->startdev;
- if (erp->refers->irb.scsw.cmd.cstat & (SCHN_STAT_INTF_CTRL_CHK
+ if (scsw_cstat(&erp->refers->irb.scsw) & (SCHN_STAT_INTF_CTRL_CHK
| SCHN_STAT_CHN_CTRL_CHK)) {
- DEV_MESSAGE(KERN_DEBUG, device, "%s",
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"channel or interface control check");
erp = dasd_3990_erp_action_4(erp, NULL);
}
* erp_new contens was possibly modified
*/
static struct dasd_ccw_req *
-dasd_3990_erp_inspect(struct dasd_ccw_req * erp)
+dasd_3990_erp_inspect(struct dasd_ccw_req *erp)
{
struct dasd_ccw_req *erp_new = NULL;
- /* sense data are located in the refers record of the */
- /* already set up new ERP ! */
- char *sense = erp->refers->irb.ecw;
+ char *sense;
/* if this problem occured on an alias retry on base */
erp_new = dasd_3990_erp_inspect_alias(erp);
if (erp_new)
return erp_new;
- /* check if no concurrent sens is available */
- if (!erp->refers->irb.esw.esw0.erw.cons)
+ /* sense data are located in the refers record of the
+ * already set up new ERP !
+ * check if concurrent sens is available
+ */
+ sense = dasd_get_sense(&erp->refers->irb);
+ if (!sense)
erp_new = dasd_3990_erp_control_check(erp);
/* distinguish between 24 and 32 byte sense data */
else if (sense[27] & DASD_SENSE_BIT_0) {
* DESCRIPTION
* This funtion adds an additional request block (ERP) to the head of
* the given cqr (or erp).
- * This erp is initialized as an default erp (retry TIC)
+ * For a command mode cqr the erp is initialized as an default erp
+ * (retry TIC).
+ * For transport mode we make a copy of the original TCW (points to
+ * the original TCCB, TIDALs, etc.) but give it a fresh
+ * TSB so the original sense data will not be changed.
*
* PARAMETER
* cqr head of the current ERP-chain (or single cqr if
* RETURN VALUES
* erp pointer to new ERP-chain head
*/
-static struct dasd_ccw_req *
-dasd_3990_erp_add_erp(struct dasd_ccw_req * cqr)
+static struct dasd_ccw_req *dasd_3990_erp_add_erp(struct dasd_ccw_req *cqr)
{
struct dasd_device *device = cqr->startdev;
struct ccw1 *ccw;
-
- /* allocate additional request block */
struct dasd_ccw_req *erp;
+ int cplength, datasize;
+ struct tcw *tcw;
+ struct tsb *tsb;
+
+ if (cqr->cpmode == 1) {
+ cplength = 0;
+ datasize = sizeof(struct tcw) + sizeof(struct tsb);
+ } else {
+ cplength = 2;
+ datasize = 0;
+ }
- erp = dasd_alloc_erp_request((char *) &cqr->magic, 2, 0, device);
+ /* allocate additional request block */
+ erp = dasd_alloc_erp_request((char *) &cqr->magic,
+ cplength, datasize, device);
if (IS_ERR(erp)) {
if (cqr->retries <= 0) {
- DEV_MESSAGE(KERN_ERR, device, "%s",
+ DBF_DEV_EVENT(DBF_ERR, device, "%s",
"Unable to allocate ERP request");
cqr->status = DASD_CQR_FAILED;
cqr->stopclk = get_clock ();
} else {
- DEV_MESSAGE (KERN_ERR, device,
+ DBF_DEV_EVENT(DBF_ERR, device,
"Unable to allocate ERP request "
"(%i retries left)",
cqr->retries);
return cqr;
}
- /* initialize request with default TIC to current ERP/CQR */
- ccw = erp->cpaddr;
- ccw->cmd_code = CCW_CMD_NOOP;
- ccw->flags = CCW_FLAG_CC;
- ccw++;
- ccw->cmd_code = CCW_CMD_TIC;
- ccw->cda = (long)(cqr->cpaddr);
+ if (cqr->cpmode == 1) {
+ /* make a shallow copy of the original tcw but set new tsb */
+ erp->cpmode = 1;
+ erp->cpaddr = erp->data;
+ tcw = erp->data;
+ tsb = (struct tsb *) &tcw[1];
+ *tcw = *((struct tcw *)cqr->cpaddr);
+ tcw->tsb = (long)tsb;
+ } else {
+ /* initialize request with default TIC to current ERP/CQR */
+ ccw = erp->cpaddr;
+ ccw->cmd_code = CCW_CMD_NOOP;
+ ccw->flags = CCW_FLAG_CC;
+ ccw++;
+ ccw->cmd_code = CCW_CMD_TIC;
+ ccw->cda = (long)(cqr->cpaddr);
+ }
+
erp->function = dasd_3990_erp_add_erp;
erp->refers = cqr;
erp->startdev = device;
erp->expires = 0;
erp->retries = 256;
erp->buildclk = get_clock();
-
erp->status = DASD_CQR_FILLED;
return erp;
* match 'boolean' for match found
* returns 1 if match found, otherwise 0.
*/
-static int
-dasd_3990_erp_error_match(struct dasd_ccw_req *cqr1, struct dasd_ccw_req *cqr2)
+static int dasd_3990_erp_error_match(struct dasd_ccw_req *cqr1,
+ struct dasd_ccw_req *cqr2)
{
+ char *sense1, *sense2;
if (cqr1->startdev != cqr2->startdev)
return 0;
- if (cqr1->irb.esw.esw0.erw.cons != cqr2->irb.esw.esw0.erw.cons)
- return 0;
+ sense1 = dasd_get_sense(&cqr1->irb);
+ sense2 = dasd_get_sense(&cqr2->irb);
- if ((cqr1->irb.esw.esw0.erw.cons == 0) &&
- (cqr2->irb.esw.esw0.erw.cons == 0)) {
- if ((cqr1->irb.scsw.cmd.cstat & (SCHN_STAT_INTF_CTRL_CHK |
- SCHN_STAT_CHN_CTRL_CHK)) ==
- (cqr2->irb.scsw.cmd.cstat & (SCHN_STAT_INTF_CTRL_CHK |
- SCHN_STAT_CHN_CTRL_CHK)))
+ /* one request has sense data, the other not -> no match, return 0 */
+ if (!sense1 != !sense2)
+ return 0;
+ /* no sense data in both cases -> check cstat for IFCC */
+ if (!sense1 && !sense2) {
+ if ((scsw_cstat(&cqr1->irb.scsw) & (SCHN_STAT_INTF_CTRL_CHK |
+ SCHN_STAT_CHN_CTRL_CHK)) ==
+ (scsw_cstat(&cqr2->irb.scsw) & (SCHN_STAT_INTF_CTRL_CHK |
+ SCHN_STAT_CHN_CTRL_CHK)))
return 1; /* match with ifcc*/
}
/* check sense data; byte 0-2,25,27 */
- if (!((memcmp (cqr1->irb.ecw, cqr2->irb.ecw, 3) == 0) &&
- (cqr1->irb.ecw[27] == cqr2->irb.ecw[27]) &&
- (cqr1->irb.ecw[25] == cqr2->irb.ecw[25]))) {
+ if (!(sense1 && sense2 &&
+ (memcmp(sense1, sense2, 3) == 0) &&
+ (sense1[27] == sense2[27]) &&
+ (sense1[25] == sense2[25]))) {
return 0; /* sense doesn't match */
}
{
struct dasd_device *device = erp->startdev;
- char *sense = erp->irb.ecw;
+ char *sense = dasd_get_sense(&erp->irb);
/* check for 24 byte sense ERP */
if ((erp->function == dasd_3990_erp_bus_out) ||
/* prepare erp for retry on different channel path */
erp = dasd_3990_erp_action_1(erp);
- if (!(sense[2] & DASD_SENSE_BIT_0)) {
+ if (sense && !(sense[2] & DASD_SENSE_BIT_0)) {
/* issue a Diagnostic Control command with an
* Inhibit Write subcommand */
break;
}
default:
- DEV_MESSAGE(KERN_DEBUG, device,
+ DBF_DEV_EVENT(DBF_WARNING, device,
"invalid subcommand modifier 0x%x "
"for Diagnostic Control Command",
sense[25]);
}
/* check for 32 byte sense ERP */
- } else if ((erp->function == dasd_3990_erp_compound_retry) ||
- (erp->function == dasd_3990_erp_compound_path) ||
- (erp->function == dasd_3990_erp_compound_code) ||
- (erp->function == dasd_3990_erp_compound_config)) {
+ } else if (sense &&
+ ((erp->function == dasd_3990_erp_compound_retry) ||
+ (erp->function == dasd_3990_erp_compound_path) ||
+ (erp->function == dasd_3990_erp_compound_code) ||
+ (erp->function == dasd_3990_erp_compound_config))) {
erp = dasd_3990_erp_compound(erp, sense);
} else {
- /* No retry left and no additional special handling */
- /*necessary */
- DEV_MESSAGE(KERN_ERR, device,
- "no retries left for erp %p - "
- "set status to FAILED", erp);
+ /*
+ * No retry left and no additional special handling
+ * necessary
+ */
+ dev_err(&device->cdev->dev,
+ "ERP %p has run out of retries and failed\n", erp);
erp->status = DASD_CQR_FAILED;
}
if (erp->retries > 0) {
- char *sense = erp->refers->irb.ecw;
+ char *sense = dasd_get_sense(&erp->refers->irb);
/* check for special retries */
- if (erp->function == dasd_3990_erp_action_4) {
+ if (sense && erp->function == dasd_3990_erp_action_4) {
erp = dasd_3990_erp_action_4(erp, sense);
- } else if (erp->function == dasd_3990_erp_action_1B_32) {
+ } else if (sense &&
+ erp->function == dasd_3990_erp_action_1B_32) {
erp = dasd_3990_update_1B(erp, sense);
- } else if (erp->function == dasd_3990_erp_int_req) {
+ } else if (sense && erp->function == dasd_3990_erp_int_req) {
erp = dasd_3990_erp_int_req(erp);
} else {
/* simple retry */
- DEV_MESSAGE(KERN_DEBUG, device,
+ DBF_DEV_EVENT(DBF_DEBUG, device,
"%i retries left for erp %p",
erp->retries, erp);
if (device->features & DASD_FEATURE_ERPLOG) {
/* print current erp_chain */
- DEV_MESSAGE(KERN_ERR, device, "%s",
- "ERP chain at BEGINNING of ERP-ACTION");
+ dev_err(&device->cdev->dev,
+ "ERP chain at BEGINNING of ERP-ACTION\n");
for (temp_erp = cqr;
temp_erp != NULL; temp_erp = temp_erp->refers) {
- DEV_MESSAGE(KERN_ERR, device,
- " erp %p (%02x) refers to %p",
+ dev_err(&device->cdev->dev,
+ "ERP %p (%02x) refers to %p\n",
temp_erp, temp_erp->status,
temp_erp->refers);
}
}
/* double-check if current erp/cqr was successful */
- if ((cqr->irb.scsw.cmd.cstat == 0x00) &&
- (cqr->irb.scsw.cmd.dstat ==
+ if ((scsw_cstat(&cqr->irb.scsw) == 0x00) &&
+ (scsw_dstat(&cqr->irb.scsw) ==
(DEV_STAT_CHN_END | DEV_STAT_DEV_END))) {
- DEV_MESSAGE(KERN_DEBUG, device,
+ DBF_DEV_EVENT(DBF_DEBUG, device,
"ERP called for successful request %p"
" - NO ERP necessary", cqr);
if (device->features & DASD_FEATURE_ERPLOG) {
/* print current erp_chain */
- DEV_MESSAGE(KERN_ERR, device, "%s",
- "ERP chain at END of ERP-ACTION");
+ dev_err(&device->cdev->dev,
+ "ERP chain at END of ERP-ACTION\n");
for (temp_erp = erp;
temp_erp != NULL; temp_erp = temp_erp->refers) {
- DEV_MESSAGE(KERN_ERR, device,
- " erp %p (%02x) refers to %p",
+ dev_err(&device->cdev->dev,
+ "ERP %p (%02x) refers to %p\n",
temp_erp, temp_erp->status,
temp_erp->refers);
}
list_add_tail(&erp->blocklist, &cqr->blocklist);
}
+
+
return erp;
} /* end dasd_3990_erp_action */
* Author(s): Stefan Weinhuber <wein@de.ibm.com>
*/
+#define KMSG_COMPONENT "dasd"
+
#include <linux/list.h>
#include <asm/ebcdic.h>
#include "dasd_int.h"
*/
spin_lock_irqsave(&lcu->lock, flags);
if (rc || (lcu->flags & NEED_UAC_UPDATE)) {
- DEV_MESSAGE(KERN_WARNING, device, "could not update"
+ DBF_DEV_EVENT(DBF_WARNING, device, "could not update"
" alias data in lcu (rc = %d), retry later", rc);
schedule_delayed_work(&lcu->ruac_data.dwork, 30*HZ);
} else {
{
struct dasd_ccw_req *cqr;
int rc = 0;
+ struct ccw1 *ccw;
cqr = lcu->rsu_cqr;
strncpy((char *) &cqr->magic, "ECKD", 4);
ASCEBC((char *) &cqr->magic, 4);
- cqr->cpaddr->cmd_code = DASD_ECKD_CCW_RSCK;
- cqr->cpaddr->flags = 0 ;
- cqr->cpaddr->count = 16;
- cqr->cpaddr->cda = (__u32)(addr_t) cqr->data;
+ ccw = cqr->cpaddr;
+ ccw->cmd_code = DASD_ECKD_CCW_RSCK;
+ ccw->flags = 0 ;
+ ccw->count = 16;
+ ccw->cda = (__u32)(addr_t) cqr->data;
((char *)cqr->data)[0] = reason;
clear_bit(DASD_CQR_FLAGS_USE_ERP, &cqr->flags);
struct alias_lcu *lcu;
char reason;
struct dasd_eckd_private *private;
+ char *sense;
private = (struct dasd_eckd_private *) device->private;
- reason = irb->ecw[8];
- DEV_MESSAGE(KERN_WARNING, device, "%s %x",
- "eckd handle summary unit check: reason", reason);
+ sense = dasd_get_sense(irb);
+ if (sense) {
+ reason = sense[8];
+ DBF_DEV_EVENT(DBF_NOTICE, device, "%s %x",
+ "eckd handle summary unit check: reason", reason);
+ } else {
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
+ "eckd handle summary unit check:"
+ " no reason code available");
+ return;
+ }
lcu = private->lcu;
if (!lcu) {
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"device not ready to handle summary"
" unit check (no lcu structure)");
return;
* the next interrupt on a different device
*/
if (list_empty(&device->alias_list)) {
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"device is in offline processing,"
" don't do summary unit check handling");
spin_unlock(&lcu->lock);
}
if (lcu->suc_data.device) {
/* already scheduled or running */
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"previous instance of summary unit check worker"
" still pending");
spin_unlock(&lcu->lock);
*
*/
+#define KMSG_COMPONENT "dasd"
+
#include <linux/ctype.h>
#include <linux/init.h>
#include <linux/module.h>
int dasd_autodetect = 0; /* is true, when autodetection is active */
int dasd_nopav = 0; /* is true, when PAV is disabled */
EXPORT_SYMBOL_GPL(dasd_nopav);
+int dasd_nofcx; /* disable High Performance Ficon */
+EXPORT_SYMBOL_GPL(dasd_nofcx);
/*
* char *dasd[] is intended to hold the ranges supplied by the dasd= statement
* Read a device busid/devno from a string.
*/
static int
+
dasd_busid(char **str, int *id0, int *id1, int *devno)
{
int val, old_style;
/* Interpret ipldev busid */
if (strncmp(DASD_IPLDEV, *str, strlen(DASD_IPLDEV)) == 0) {
if (ipl_info.type != IPL_TYPE_CCW) {
- MESSAGE(KERN_ERR, "%s", "ipl device is not a ccw "
- "device");
+ pr_err("The IPL device is not a CCW device\n");
return -EINVAL;
}
*id0 = 0;
else if (len == 8 && !strncmp(str, "failfast", 8))
features |= DASD_FEATURE_FAILFAST;
else {
- MESSAGE(KERN_WARNING,
- "unsupported feature: %*s, "
- "ignoring setting", len, str);
+ pr_warning("%*s is not a supported device option\n",
+ len, str);
rc = -EINVAL;
}
str += len;
str++;
}
if (*str != ')') {
- MESSAGE(KERN_WARNING, "%s",
- "missing ')' in dasd parameter string\n");
+ pr_warning("A closing parenthesis ')' is missing in the "
+ "dasd= parameter\n");
rc = -EINVAL;
} else
str++;
}
if (strncmp("autodetect", parsestring, length) == 0) {
dasd_autodetect = 1;
- MESSAGE (KERN_INFO, "%s",
- "turning to autodetection mode");
+ pr_info("The autodetection mode has been activated\n");
return residual_str;
}
if (strncmp("probeonly", parsestring, length) == 0) {
dasd_probeonly = 1;
- MESSAGE(KERN_INFO, "%s",
- "turning to probeonly mode");
+ pr_info("The probeonly mode has been activated\n");
return residual_str;
}
if (strncmp("nopav", parsestring, length) == 0) {
if (MACHINE_IS_VM)
- MESSAGE(KERN_INFO, "%s", "'nopav' not supported on VM");
+ pr_info("'nopav' is not supported on z/VM\n");
else {
dasd_nopav = 1;
- MESSAGE(KERN_INFO, "%s", "disable PAV mode");
+ pr_info("PAV support has be deactivated\n");
}
return residual_str;
}
+ if (strncmp("nofcx", parsestring, length) == 0) {
+ dasd_nofcx = 1;
+ pr_info("High Performance FICON support has been "
+ "deactivated\n");
+ return residual_str;
+ }
if (strncmp("fixedbuffers", parsestring, length) == 0) {
if (dasd_page_cache)
return residual_str;
PAGE_SIZE, SLAB_CACHE_DMA,
NULL);
if (!dasd_page_cache)
- MESSAGE(KERN_WARNING, "%s", "Failed to create slab, "
+ DBF_EVENT(DBF_WARNING, "%s", "Failed to create slab, "
"fixed buffer mode disabled.");
else
- MESSAGE (KERN_INFO, "%s",
+ DBF_EVENT(DBF_INFO, "%s",
"turning on fixed buffer mode");
return residual_str;
}
(from_id0 != to_id0 || from_id1 != to_id1 || from > to))
rc = -EINVAL;
if (rc) {
- MESSAGE(KERN_ERR, "Invalid device range %s", parsestring);
+ pr_err("%s is not a valid device range\n", parsestring);
return ERR_PTR(rc);
}
features = dasd_feature_list(str, &str);
return str + 1;
if (*str == '\0')
return str;
- MESSAGE(KERN_WARNING,
- "junk at end of dasd parameter string: %s\n", str);
+ pr_warning("The dasd= parameter value %s has an invalid ending\n",
+ str);
return ERR_PTR(-EINVAL);
}
*
*/
+#define KMSG_COMPONENT "dasd"
+
#include <linux/stddef.h>
#include <linux/kernel.h>
#include <linux/slab.h>
mdsk_term_io(device);
rc = mdsk_init_io(device, device->block->bp_block, 0, NULL);
if (rc)
- DEV_MESSAGE(KERN_WARNING, device, "DIAG ERP unsuccessful, "
- "rc=%d", rc);
+ dev_warn(&device->cdev->dev, "DIAG ERP failed with "
+ "rc=%d\n", rc);
}
/* Start a given request at the device. Return zero on success, non-zero
device = cqr->startdev;
if (cqr->retries < 0) {
- DEV_MESSAGE(KERN_WARNING, device, "DIAG start_IO: request %p "
+ DBF_DEV_EVENT(DBF_ERR, device, "DIAG start_IO: request %p "
"- no retry left)", cqr);
cqr->status = DASD_CQR_ERROR;
return -EIO;
break;
default: /* Error condition */
cqr->status = DASD_CQR_QUEUED;
- DEV_MESSAGE(KERN_WARNING, device, "dia250 returned rc=%d", rc);
+ DBF_DEV_EVENT(DBF_WARNING, device, "dia250 returned rc=%d", rc);
dasd_diag_erp(device);
rc = -EIO;
break;
return;
}
if (!ip) { /* no intparm: unsolicited interrupt */
- MESSAGE(KERN_DEBUG, "%s", "caught unsolicited interrupt");
+ DBF_EVENT(DBF_NOTICE, "%s", "caught unsolicited "
+ "interrupt");
return;
}
cqr = (struct dasd_ccw_req *) ip;
device = (struct dasd_device *) cqr->startdev;
if (strncmp(device->discipline->ebcname, (char *) &cqr->magic, 4)) {
- DEV_MESSAGE(KERN_WARNING, device,
+ DBF_DEV_EVENT(DBF_WARNING, device,
" magic number of dasd_ccw_req 0x%08X doesn't"
" match discipline 0x%08X",
cqr->magic, *(int *) (&device->discipline->name));
rc = dasd_start_diag(next);
if (rc == 0)
expires = next->expires;
- else if (rc != -EACCES)
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "Interrupt fastpath "
- "failed!");
}
}
} else {
cqr->status = DASD_CQR_QUEUED;
- DEV_MESSAGE(KERN_WARNING, device, "interrupt status for "
+ DBF_DEV_EVENT(DBF_DEBUG, device, "interrupt status for "
"request %p was %d (%d retries left)", cqr, status,
cqr->retries);
dasd_diag_erp(device);
if (private == NULL) {
private = kzalloc(sizeof(struct dasd_diag_private),GFP_KERNEL);
if (private == NULL) {
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "memory allocation failed for private data");
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
+ "Allocating memory for private DASD data "
+ "failed\n");
return -ENOMEM;
}
ccw_device_get_id(device->cdev, &private->dev_id);
}
block = dasd_alloc_block();
if (IS_ERR(block)) {
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"could not allocate dasd block structure");
device->private = NULL;
kfree(private);
rc = diag210((struct diag210 *) rdc_data);
if (rc) {
- DEV_MESSAGE(KERN_WARNING, device, "failed to retrieve device "
+ DBF_DEV_EVENT(DBF_WARNING, device, "failed to retrieve device "
"information (rc=%d)", rc);
rc = -EOPNOTSUPP;
goto out;
private->pt_block = 2;
break;
default:
- DEV_MESSAGE(KERN_WARNING, device, "unsupported device class "
- "(class=%d)", private->rdc_data.vdev_class);
+ dev_warn(&device->cdev->dev, "Device type %d is not supported "
+ "in DIAG mode\n", private->rdc_data.vdev_class);
rc = -EOPNOTSUPP;
goto out;
}
/* figure out blocksize of device */
label = (struct vtoc_cms_label *) get_zeroed_page(GFP_KERNEL);
if (label == NULL) {
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"No memory to allocate initialization request");
rc = -ENOMEM;
goto out;
private->iob.flaga = DASD_DIAG_FLAGA_DEFAULT;
rc = dia250(&private->iob, RW_BIO);
if (rc == 3) {
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "DIAG call failed");
+ dev_warn(&device->cdev->dev,
+ "A 64-bit DIAG call failed\n");
rc = -EOPNOTSUPP;
goto out_label;
}
break;
}
if (bsize > PAGE_SIZE) {
- DEV_MESSAGE(KERN_WARNING, device, "device access failed "
- "(rc=%d)", rc);
+ dev_warn(&device->cdev->dev, "Accessing the DASD failed because"
+ " of an incorrect format (rc=%d)\n", rc);
rc = -EIO;
goto out_label;
}
block->s2b_shift++;
rc = mdsk_init_io(device, block->bp_block, 0, NULL);
if (rc) {
- DEV_MESSAGE(KERN_WARNING, device, "DIAG initialization "
- "failed (rc=%d)", rc);
+ dev_warn(&device->cdev->dev, "DIAG initialization "
+ "failed with rc=%d\n", rc);
rc = -EIO;
} else {
- DEV_MESSAGE(KERN_INFO, device,
- "(%ld B/blk): %ldkB",
- (unsigned long) block->bp_block,
- (unsigned long) (block->blocks <<
- block->s2b_shift) >> 1);
+ dev_info(&device->cdev->dev,
+ "New DASD with %ld byte/block, total size %ld KB\n",
+ (unsigned long) block->bp_block,
+ (unsigned long) (block->blocks <<
+ block->s2b_shift) >> 1);
}
out_label:
free_page((long) label);
dasd_diag_dump_sense(struct dasd_device *device, struct dasd_ccw_req * req,
struct irb *stat)
{
- DEV_MESSAGE(KERN_ERR, device, "%s",
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"dump sense not available for DIAG data");
}
dasd_diag_init(void)
{
if (!MACHINE_IS_VM) {
- MESSAGE_LOG(KERN_INFO,
- "Machine is not VM: %s "
- "discipline not initializing",
- dasd_diag_discipline.name);
+ pr_info("Discipline %s cannot be used without z/VM\n",
+ dasd_diag_discipline.name);
return -ENODEV;
}
ASCEBC(dasd_diag_discipline.ebcname, 4);
*
*/
+#define KMSG_COMPONENT "dasd"
+
#include <linux/stddef.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <asm/uaccess.h>
#include <asm/cio.h>
#include <asm/ccwdev.h>
+#include <asm/itcw.h>
#include "dasd_int.h"
#include "dasd_eckd.h"
+#include "../cio/chsc.h"
+
#ifdef PRINTK_HEADER
#undef PRINTK_HEADER
/* set ECKD specific ccw-device options */
ret = ccw_device_set_options(cdev, CCWDEV_ALLOW_FORCE);
if (ret) {
- printk(KERN_WARNING
+ DBF_EVENT(DBF_WARNING,
"dasd_eckd_probe: could not set ccw-device options "
"for %s\n", dev_name(&cdev->dev));
return ret;
return 0;
}
+static void set_ch_t(struct ch_t *geo, __u32 cyl, __u8 head)
+{
+ geo->cyl = (__u16) cyl;
+ geo->head = cyl >> 16;
+ geo->head <<= 4;
+ geo->head |= head;
+}
+
static int
check_XRC (struct ccw1 *de_ccw,
struct DE_eckd_data *data,
}
static int
-define_extent(struct ccw1 * ccw, struct DE_eckd_data * data, int trk,
- int totrk, int cmd, struct dasd_device * device)
+define_extent(struct ccw1 *ccw, struct DE_eckd_data *data, unsigned int trk,
+ unsigned int totrk, int cmd, struct dasd_device *device)
{
struct dasd_eckd_private *private;
- struct ch_t geo, beg, end;
+ u32 begcyl, endcyl;
+ u16 heads, beghead, endhead;
int rc = 0;
private = (struct dasd_eckd_private *) device->private;
rc = check_XRC (ccw, data, device);
break;
default:
- DEV_MESSAGE(KERN_ERR, device, "unknown opcode 0x%x", cmd);
+ dev_err(&device->cdev->dev,
+ "0x%x is not a known command\n", cmd);
break;
}
&& !(private->uses_cdl && trk < 2))
data->ga_extended |= 0x40; /* Regular Data Format Mode */
- geo.cyl = private->rdc_data.no_cyl;
- geo.head = private->rdc_data.trk_per_cyl;
- beg.cyl = trk / geo.head;
- beg.head = trk % geo.head;
- end.cyl = totrk / geo.head;
- end.head = totrk % geo.head;
+ heads = private->rdc_data.trk_per_cyl;
+ begcyl = trk / heads;
+ beghead = trk % heads;
+ endcyl = totrk / heads;
+ endhead = totrk % heads;
/* check for sequential prestage - enhance cylinder range */
if (data->attributes.operation == DASD_SEQ_PRESTAGE ||
data->attributes.operation == DASD_SEQ_ACCESS) {
- if (end.cyl + private->attrib.nr_cyl < geo.cyl)
- end.cyl += private->attrib.nr_cyl;
+ if (endcyl + private->attrib.nr_cyl < private->real_cyl)
+ endcyl += private->attrib.nr_cyl;
else
- end.cyl = (geo.cyl - 1);
+ endcyl = (private->real_cyl - 1);
}
- data->beg_ext.cyl = beg.cyl;
- data->beg_ext.head = beg.head;
- data->end_ext.cyl = end.cyl;
- data->end_ext.head = end.head;
+ set_ch_t(&data->beg_ext, begcyl, beghead);
+ set_ch_t(&data->end_ext, endcyl, endhead);
return rc;
}
return 0;
/* switch on System Time Stamp - needed for XRC Support */
- pfxdata->define_extend.ga_extended |= 0x08; /* 'Time Stamp Valid' */
- pfxdata->define_extend.ga_extended |= 0x02; /* 'Extended Parameter' */
+ pfxdata->define_extent.ga_extended |= 0x08; /* 'Time Stamp Valid' */
+ pfxdata->define_extent.ga_extended |= 0x02; /* 'Extended Parameter' */
pfxdata->validity.time_stamp = 1; /* 'Time Stamp Valid' */
- rc = get_sync_clock(&pfxdata->define_extend.ep_sys_time);
+ rc = get_sync_clock(&pfxdata->define_extent.ep_sys_time);
/* Ignore return code if sync clock is switched off. */
if (rc == -ENOSYS || rc == -EACCES)
rc = 0;
return rc;
}
-static int prefix(struct ccw1 *ccw, struct PFX_eckd_data *pfxdata, int trk,
- int totrk, int cmd, struct dasd_device *basedev,
- struct dasd_device *startdev)
+static void fill_LRE_data(struct LRE_eckd_data *data, unsigned int trk,
+ unsigned int rec_on_trk, int count, int cmd,
+ struct dasd_device *device, unsigned int reclen,
+ unsigned int tlf)
+{
+ struct dasd_eckd_private *private;
+ int sector;
+ int dn, d;
+
+ private = (struct dasd_eckd_private *) device->private;
+
+ memset(data, 0, sizeof(*data));
+ sector = 0;
+ if (rec_on_trk) {
+ switch (private->rdc_data.dev_type) {
+ case 0x3390:
+ dn = ceil_quot(reclen + 6, 232);
+ d = 9 + ceil_quot(reclen + 6 * (dn + 1), 34);
+ sector = (49 + (rec_on_trk - 1) * (10 + d)) / 8;
+ break;
+ case 0x3380:
+ d = 7 + ceil_quot(reclen + 12, 32);
+ sector = (39 + (rec_on_trk - 1) * (8 + d)) / 7;
+ break;
+ }
+ }
+ data->sector = sector;
+ /* note: meaning of count depends on the operation
+ * for record based I/O it's the number of records, but for
+ * track based I/O it's the number of tracks
+ */
+ data->count = count;
+ switch (cmd) {
+ case DASD_ECKD_CCW_WRITE_HOME_ADDRESS:
+ data->operation.orientation = 0x3;
+ data->operation.operation = 0x03;
+ break;
+ case DASD_ECKD_CCW_READ_HOME_ADDRESS:
+ data->operation.orientation = 0x3;
+ data->operation.operation = 0x16;
+ break;
+ case DASD_ECKD_CCW_WRITE_RECORD_ZERO:
+ data->operation.orientation = 0x1;
+ data->operation.operation = 0x03;
+ data->count++;
+ break;
+ case DASD_ECKD_CCW_READ_RECORD_ZERO:
+ data->operation.orientation = 0x3;
+ data->operation.operation = 0x16;
+ data->count++;
+ break;
+ case DASD_ECKD_CCW_WRITE:
+ case DASD_ECKD_CCW_WRITE_MT:
+ case DASD_ECKD_CCW_WRITE_KD:
+ case DASD_ECKD_CCW_WRITE_KD_MT:
+ data->auxiliary.length_valid = 0x1;
+ data->length = reclen;
+ data->operation.operation = 0x01;
+ break;
+ case DASD_ECKD_CCW_WRITE_CKD:
+ case DASD_ECKD_CCW_WRITE_CKD_MT:
+ data->auxiliary.length_valid = 0x1;
+ data->length = reclen;
+ data->operation.operation = 0x03;
+ break;
+ case DASD_ECKD_CCW_WRITE_TRACK_DATA:
+ data->auxiliary.length_valid = 0x1;
+ data->length = reclen; /* not tlf, as one might think */
+ data->operation.operation = 0x3F;
+ data->extended_operation = 0x23;
+ break;
+ case DASD_ECKD_CCW_READ:
+ case DASD_ECKD_CCW_READ_MT:
+ case DASD_ECKD_CCW_READ_KD:
+ case DASD_ECKD_CCW_READ_KD_MT:
+ data->auxiliary.length_valid = 0x1;
+ data->length = reclen;
+ data->operation.operation = 0x06;
+ break;
+ case DASD_ECKD_CCW_READ_CKD:
+ case DASD_ECKD_CCW_READ_CKD_MT:
+ data->auxiliary.length_valid = 0x1;
+ data->length = reclen;
+ data->operation.operation = 0x16;
+ break;
+ case DASD_ECKD_CCW_READ_COUNT:
+ data->operation.operation = 0x06;
+ break;
+ case DASD_ECKD_CCW_READ_TRACK_DATA:
+ data->auxiliary.length_valid = 0x1;
+ data->length = tlf;
+ data->operation.operation = 0x0C;
+ break;
+ case DASD_ECKD_CCW_ERASE:
+ data->length = reclen;
+ data->auxiliary.length_valid = 0x1;
+ data->operation.operation = 0x0b;
+ break;
+ default:
+ DBF_DEV_EVENT(DBF_ERR, device,
+ "fill LRE unknown opcode 0x%x", cmd);
+ BUG();
+ }
+ set_ch_t(&data->seek_addr,
+ trk / private->rdc_data.trk_per_cyl,
+ trk % private->rdc_data.trk_per_cyl);
+ data->search_arg.cyl = data->seek_addr.cyl;
+ data->search_arg.head = data->seek_addr.head;
+ data->search_arg.record = rec_on_trk;
+}
+
+static int prefix_LRE(struct ccw1 *ccw, struct PFX_eckd_data *pfxdata,
+ unsigned int trk, unsigned int totrk, int cmd,
+ struct dasd_device *basedev, struct dasd_device *startdev,
+ unsigned char format, unsigned int rec_on_trk, int count,
+ unsigned int blksize, unsigned int tlf)
{
struct dasd_eckd_private *basepriv, *startpriv;
- struct DE_eckd_data *data;
- struct ch_t geo, beg, end;
+ struct DE_eckd_data *dedata;
+ struct LRE_eckd_data *lredata;
+ u32 begcyl, endcyl;
+ u16 heads, beghead, endhead;
int rc = 0;
basepriv = (struct dasd_eckd_private *) basedev->private;
startpriv = (struct dasd_eckd_private *) startdev->private;
- data = &pfxdata->define_extend;
+ dedata = &pfxdata->define_extent;
+ lredata = &pfxdata->locate_record;
ccw->cmd_code = DASD_ECKD_CCW_PFX;
ccw->flags = 0;
memset(pfxdata, 0, sizeof(*pfxdata));
/* prefix data */
- pfxdata->format = 0;
+ if (format > 1) {
+ DBF_DEV_EVENT(DBF_ERR, basedev,
+ "PFX LRE unknown format 0x%x", format);
+ BUG();
+ return -EINVAL;
+ }
+ pfxdata->format = format;
pfxdata->base_address = basepriv->ned->unit_addr;
pfxdata->base_lss = basepriv->ned->ID;
- pfxdata->validity.define_extend = 1;
+ pfxdata->validity.define_extent = 1;
/* private uid is kept up to date, conf_data may be outdated */
if (startpriv->uid.type != UA_BASE_DEVICE) {
case DASD_ECKD_CCW_READ_KD:
case DASD_ECKD_CCW_READ_KD_MT:
case DASD_ECKD_CCW_READ_COUNT:
- data->mask.perm = 0x1;
- data->attributes.operation = basepriv->attrib.operation;
+ dedata->mask.perm = 0x1;
+ dedata->attributes.operation = basepriv->attrib.operation;
+ break;
+ case DASD_ECKD_CCW_READ_TRACK_DATA:
+ dedata->mask.perm = 0x1;
+ dedata->attributes.operation = basepriv->attrib.operation;
+ dedata->blk_size = 0;
break;
case DASD_ECKD_CCW_WRITE:
case DASD_ECKD_CCW_WRITE_MT:
case DASD_ECKD_CCW_WRITE_KD:
case DASD_ECKD_CCW_WRITE_KD_MT:
- data->mask.perm = 0x02;
- data->attributes.operation = basepriv->attrib.operation;
+ dedata->mask.perm = 0x02;
+ dedata->attributes.operation = basepriv->attrib.operation;
rc = check_XRC_on_prefix(pfxdata, basedev);
break;
case DASD_ECKD_CCW_WRITE_CKD:
case DASD_ECKD_CCW_WRITE_CKD_MT:
- data->attributes.operation = DASD_BYPASS_CACHE;
+ dedata->attributes.operation = DASD_BYPASS_CACHE;
rc = check_XRC_on_prefix(pfxdata, basedev);
break;
case DASD_ECKD_CCW_ERASE:
case DASD_ECKD_CCW_WRITE_HOME_ADDRESS:
case DASD_ECKD_CCW_WRITE_RECORD_ZERO:
- data->mask.perm = 0x3;
- data->mask.auth = 0x1;
- data->attributes.operation = DASD_BYPASS_CACHE;
+ dedata->mask.perm = 0x3;
+ dedata->mask.auth = 0x1;
+ dedata->attributes.operation = DASD_BYPASS_CACHE;
rc = check_XRC_on_prefix(pfxdata, basedev);
break;
- default:
- DEV_MESSAGE(KERN_ERR, basedev, "unknown opcode 0x%x", cmd);
+ case DASD_ECKD_CCW_WRITE_TRACK_DATA:
+ dedata->mask.perm = 0x02;
+ dedata->attributes.operation = basepriv->attrib.operation;
+ dedata->blk_size = blksize;
+ rc = check_XRC_on_prefix(pfxdata, basedev);
break;
+ default:
+ DBF_DEV_EVENT(DBF_ERR, basedev,
+ "PFX LRE unknown opcode 0x%x", cmd);
+ BUG();
+ return -EINVAL;
}
- data->attributes.mode = 0x3; /* ECKD */
+ dedata->attributes.mode = 0x3; /* ECKD */
if ((basepriv->rdc_data.cu_type == 0x2105 ||
basepriv->rdc_data.cu_type == 0x2107 ||
basepriv->rdc_data.cu_type == 0x1750)
&& !(basepriv->uses_cdl && trk < 2))
- data->ga_extended |= 0x40; /* Regular Data Format Mode */
+ dedata->ga_extended |= 0x40; /* Regular Data Format Mode */
- geo.cyl = basepriv->rdc_data.no_cyl;
- geo.head = basepriv->rdc_data.trk_per_cyl;
- beg.cyl = trk / geo.head;
- beg.head = trk % geo.head;
- end.cyl = totrk / geo.head;
- end.head = totrk % geo.head;
+ heads = basepriv->rdc_data.trk_per_cyl;
+ begcyl = trk / heads;
+ beghead = trk % heads;
+ endcyl = totrk / heads;
+ endhead = totrk % heads;
/* check for sequential prestage - enhance cylinder range */
- if (data->attributes.operation == DASD_SEQ_PRESTAGE ||
- data->attributes.operation == DASD_SEQ_ACCESS) {
+ if (dedata->attributes.operation == DASD_SEQ_PRESTAGE ||
+ dedata->attributes.operation == DASD_SEQ_ACCESS) {
- if (end.cyl + basepriv->attrib.nr_cyl < geo.cyl)
- end.cyl += basepriv->attrib.nr_cyl;
+ if (endcyl + basepriv->attrib.nr_cyl < basepriv->real_cyl)
+ endcyl += basepriv->attrib.nr_cyl;
else
- end.cyl = (geo.cyl - 1);
+ endcyl = (basepriv->real_cyl - 1);
+ }
+
+ set_ch_t(&dedata->beg_ext, begcyl, beghead);
+ set_ch_t(&dedata->end_ext, endcyl, endhead);
+
+ if (format == 1) {
+ fill_LRE_data(lredata, trk, rec_on_trk, count, cmd,
+ basedev, blksize, tlf);
}
- data->beg_ext.cyl = beg.cyl;
- data->beg_ext.head = beg.head;
- data->end_ext.cyl = end.cyl;
- data->end_ext.head = end.head;
return rc;
}
+static int prefix(struct ccw1 *ccw, struct PFX_eckd_data *pfxdata,
+ unsigned int trk, unsigned int totrk, int cmd,
+ struct dasd_device *basedev, struct dasd_device *startdev)
+{
+ return prefix_LRE(ccw, pfxdata, trk, totrk, cmd, basedev, startdev,
+ 0, 0, 0, 0, 0);
+}
+
static void
-locate_record(struct ccw1 *ccw, struct LO_eckd_data *data, int trk,
- int rec_on_trk, int no_rec, int cmd,
+locate_record(struct ccw1 *ccw, struct LO_eckd_data *data, unsigned int trk,
+ unsigned int rec_on_trk, int no_rec, int cmd,
struct dasd_device * device, int reclen)
{
struct dasd_eckd_private *private;
data->operation.operation = 0x0b;
break;
default:
- DEV_MESSAGE(KERN_ERR, device, "unknown opcode 0x%x", cmd);
- }
- data->seek_addr.cyl = data->search_arg.cyl =
- trk / private->rdc_data.trk_per_cyl;
- data->seek_addr.head = data->search_arg.head =
- trk % private->rdc_data.trk_per_cyl;
+ DBF_DEV_EVENT(DBF_ERR, device, "unknown locate record "
+ "opcode 0x%x", cmd);
+ }
+ set_ch_t(&data->seek_addr,
+ trk / private->rdc_data.trk_per_cyl,
+ trk % private->rdc_data.trk_per_cyl);
+ data->search_arg.cyl = data->seek_addr.cyl;
+ data->search_arg.head = data->seek_addr.head;
data->search_arg.record = rec_on_trk;
}
cqr = dasd_smalloc_request("ECKD", 1 /* RCD */, ciw->count, device);
if (IS_ERR(cqr)) {
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "Could not allocate RCD request");
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
+ "Could not allocate RCD request");
return cqr;
}
rc = dasd_eckd_read_conf_lpm(device, &conf_data,
&conf_len, lpm);
if (rc && rc != -EOPNOTSUPP) { /* -EOPNOTSUPP is ok */
- MESSAGE(KERN_WARNING,
- "Read configuration data returned "
- "error %d", rc);
+ DBF_EVENT(DBF_WARNING,
+ "Read configuration data returned "
+ "error %d for device: %s", rc,
+ dev_name(&device->cdev->dev));
return rc;
}
if (conf_data == NULL) {
- MESSAGE(KERN_WARNING, "%s", "No configuration "
- "data retrieved");
+ DBF_EVENT(DBF_WARNING, "No configuration "
+ "data retrieved for device: %s",
+ dev_name(&device->cdev->dev));
continue; /* no error */
}
/* save first valid configuration data */
sizeof(struct dasd_rssd_features)),
device);
if (IS_ERR(cqr)) {
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "Could not allocate initialization request");
+ DBF_EVENT(DBF_WARNING, "Could not allocate initialization "
+ "request for device: %s",
+ dev_name(&device->cdev->dev));
return PTR_ERR(cqr);
}
cqr->startdev = device;
/*
* Build CP for Perform Subsystem Function - SSC.
*/
-static struct dasd_ccw_req *dasd_eckd_build_psf_ssc(struct dasd_device *device)
+static struct dasd_ccw_req *dasd_eckd_build_psf_ssc(struct dasd_device *device,
+ int enable_pav)
{
struct dasd_ccw_req *cqr;
struct dasd_psf_ssc_data *psf_ssc_data;
device);
if (IS_ERR(cqr)) {
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"Could not allocate PSF-SSC request");
return cqr;
}
psf_ssc_data = (struct dasd_psf_ssc_data *)cqr->data;
psf_ssc_data->order = PSF_ORDER_SSC;
- psf_ssc_data->suborder = 0x88;
- psf_ssc_data->reserved[0] = 0x88;
-
+ psf_ssc_data->suborder = 0x40;
+ if (enable_pav) {
+ psf_ssc_data->suborder |= 0x88;
+ psf_ssc_data->reserved[0] = 0x88;
+ }
ccw = cqr->cpaddr;
ccw->cmd_code = DASD_ECKD_CCW_PSF;
ccw->cda = (__u32)(addr_t)psf_ssc_data;
* call might change behaviour of DASD devices.
*/
static int
-dasd_eckd_psf_ssc(struct dasd_device *device)
+dasd_eckd_psf_ssc(struct dasd_device *device, int enable_pav)
{
struct dasd_ccw_req *cqr;
int rc;
- cqr = dasd_eckd_build_psf_ssc(device);
+ cqr = dasd_eckd_build_psf_ssc(device, enable_pav);
if (IS_ERR(cqr))
return PTR_ERR(cqr);
{
int rc;
struct dasd_eckd_private *private;
+ int enable_pav;
- /* Currently PAV is the only reason to 'validate' server on LPAR */
if (dasd_nopav || MACHINE_IS_VM)
- return 0;
-
- rc = dasd_eckd_psf_ssc(device);
+ enable_pav = 0;
+ else
+ enable_pav = 1;
+ rc = dasd_eckd_psf_ssc(device, enable_pav);
/* may be requested feature is not available on server,
* therefore just report error and go ahead */
private = (struct dasd_eckd_private *) device->private;
- DEV_MESSAGE(KERN_INFO, device,
- "PSF-SSC on storage subsystem %s.%s.%04x returned rc=%d",
- private->uid.vendor, private->uid.serial,
- private->uid.ssid, rc);
+ DBF_EVENT(DBF_WARNING, "PSF-SSC on storage subsystem %s.%s.%04x "
+ "returned rc=%d for device: %s",
+ private->uid.vendor, private->uid.serial,
+ private->uid.ssid, rc, dev_name(&device->cdev->dev));
/* RE-Read Configuration Data */
return dasd_eckd_read_conf(device);
}
private = kzalloc(sizeof(struct dasd_eckd_private),
GFP_KERNEL | GFP_DMA);
if (private == NULL) {
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "memory allocation failed for private "
- "data");
+ dev_warn(&device->cdev->dev,
+ "Allocating memory for private DASD data "
+ "failed\n");
return -ENOMEM;
}
device->private = (void *) private;
if (private->uid.type == UA_BASE_DEVICE) {
block = dasd_alloc_block();
if (IS_ERR(block)) {
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "could not allocate dasd block structure");
+ DBF_EVENT(DBF_WARNING, "could not allocate dasd "
+ "block structure for device: %s",
+ dev_name(&device->cdev->dev));
rc = PTR_ERR(block);
goto out_err1;
}
memset(rdc_data, 0, sizeof(rdc_data));
rc = dasd_generic_read_dev_chars(device, "ECKD", &rdc_data, 64);
if (rc) {
- DEV_MESSAGE(KERN_WARNING, device,
- "Read device characteristics returned "
- "rc=%d", rc);
+ DBF_EVENT(DBF_WARNING,
+ "Read device characteristics failed, rc=%d for "
+ "device: %s", rc, dev_name(&device->cdev->dev));
goto out_err3;
}
- DEV_MESSAGE(KERN_INFO, device,
- "%04X/%02X(CU:%04X/%02X) Cyl:%d Head:%d Sec:%d",
- private->rdc_data.dev_type,
- private->rdc_data.dev_model,
- private->rdc_data.cu_type,
- private->rdc_data.cu_model.model,
- private->rdc_data.no_cyl,
- private->rdc_data.trk_per_cyl,
- private->rdc_data.sec_per_trk);
+ /* find the vaild cylinder size */
+ if (private->rdc_data.no_cyl == LV_COMPAT_CYL &&
+ private->rdc_data.long_no_cyl)
+ private->real_cyl = private->rdc_data.long_no_cyl;
+ else
+ private->real_cyl = private->rdc_data.no_cyl;
+
+ dev_info(&device->cdev->dev, "New DASD %04X/%02X (CU %04X/%02X) "
+ "with %d cylinders, %d heads, %d sectors\n",
+ private->rdc_data.dev_type,
+ private->rdc_data.dev_model,
+ private->rdc_data.cu_type,
+ private->rdc_data.cu_model.model,
+ private->real_cyl,
+ private->rdc_data.trk_per_cyl,
+ private->rdc_data.sec_per_trk);
return 0;
out_err3:
status = private->init_cqr_status;
private->init_cqr_status = -1;
if (status != DASD_CQR_DONE) {
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "volume analysis returned unformatted disk");
+ dev_warn(&device->cdev->dev,
+ "The DASD is not formatted\n");
return -EMEDIUMTYPE;
}
private->uses_cdl = 1;
- /* Calculate number of blocks/records per track. */
- blk_per_trk = recs_per_track(&private->rdc_data, 0, block->bp_block);
/* Check Track 0 for Compatible Disk Layout */
count_area = NULL;
for (i = 0; i < 3; i++) {
count_area = &private->count_area[0];
} else {
if (private->count_area[3].record == 1)
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "Trk 0: no records after VTOC!");
+ dev_warn(&device->cdev->dev,
+ "Track 0 has no records following the VTOC\n");
}
if (count_area != NULL && count_area->kl == 0) {
/* we found notthing violating our disk layout */
block->bp_block = count_area->dl;
}
if (block->bp_block == 0) {
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "Volume has incompatible disk layout");
+ dev_warn(&device->cdev->dev,
+ "The disk layout of the DASD is not supported\n");
return -EMEDIUMTYPE;
}
block->s2b_shift = 0; /* bits to shift 512 to get a block */
block->s2b_shift++;
blk_per_trk = recs_per_track(&private->rdc_data, 0, block->bp_block);
- block->blocks = (private->rdc_data.no_cyl *
+ block->blocks = (private->real_cyl *
private->rdc_data.trk_per_cyl *
blk_per_trk);
- DEV_MESSAGE(KERN_INFO, device,
- "(%dkB blks): %dkB at %dkB/trk %s",
- (block->bp_block >> 10),
- ((private->rdc_data.no_cyl *
- private->rdc_data.trk_per_cyl *
- blk_per_trk * (block->bp_block >> 9)) >> 1),
- ((blk_per_trk * block->bp_block) >> 10),
- private->uses_cdl ?
- "compatible disk layout" : "linux disk layout");
+ dev_info(&device->cdev->dev,
+ "DASD with %d KB/block, %d KB total size, %d KB/track, "
+ "%s\n", (block->bp_block >> 10),
+ ((private->real_cyl *
+ private->rdc_data.trk_per_cyl *
+ blk_per_trk * (block->bp_block >> 9)) >> 1),
+ ((blk_per_trk * block->bp_block) >> 10),
+ private->uses_cdl ?
+ "compatible disk layout" : "linux disk layout");
return 0;
}
struct eckd_count *ect;
struct ccw1 *ccw;
void *data;
- int rpt, cyl, head;
+ int rpt;
+ struct ch_t address;
int cplength, datasize;
int i;
+ int intensity = 0;
+ int r0_perm;
private = (struct dasd_eckd_private *) device->private;
rpt = recs_per_track(&private->rdc_data, 0, fdata->blksize);
- cyl = fdata->start_unit / private->rdc_data.trk_per_cyl;
- head = fdata->start_unit % private->rdc_data.trk_per_cyl;
+ set_ch_t(&address,
+ fdata->start_unit / private->rdc_data.trk_per_cyl,
+ fdata->start_unit % private->rdc_data.trk_per_cyl);
/* Sanity checks. */
if (fdata->start_unit >=
- (private->rdc_data.no_cyl * private->rdc_data.trk_per_cyl)) {
- DEV_MESSAGE(KERN_INFO, device, "Track no %d too big!",
- fdata->start_unit);
+ (private->real_cyl * private->rdc_data.trk_per_cyl)) {
+ dev_warn(&device->cdev->dev, "Start track number %d used in "
+ "formatting is too big\n", fdata->start_unit);
return ERR_PTR(-EINVAL);
}
if (fdata->start_unit > fdata->stop_unit) {
- DEV_MESSAGE(KERN_INFO, device, "Track %d reached! ending.",
- fdata->start_unit);
+ dev_warn(&device->cdev->dev, "Start track %d used in "
+ "formatting exceeds end track\n", fdata->start_unit);
return ERR_PTR(-EINVAL);
}
if (dasd_check_blocksize(fdata->blksize) != 0) {
- DEV_MESSAGE(KERN_WARNING, device,
- "Invalid blocksize %d...terminating!",
- fdata->blksize);
+ dev_warn(&device->cdev->dev,
+ "The DASD cannot be formatted with block size %d\n",
+ fdata->blksize);
return ERR_PTR(-EINVAL);
}
* Bit 1: write home address, currently not supported
* Bit 2: invalidate tracks
* Bit 3: use OS/390 compatible disk layout (cdl)
+ * Bit 4: do not allow storage subsystem to modify record zero
* Only some bit combinations do make sense.
*/
- switch (fdata->intensity) {
+ if (fdata->intensity & 0x10) {
+ r0_perm = 0;
+ intensity = fdata->intensity & ~0x10;
+ } else {
+ r0_perm = 1;
+ intensity = fdata->intensity;
+ }
+ switch (intensity) {
case 0x00: /* Normal format */
case 0x08: /* Normal format, use cdl. */
cplength = 2 + rpt;
sizeof(struct eckd_count);
break;
default:
- DEV_MESSAGE(KERN_WARNING, device, "Invalid flags 0x%x.",
- fdata->intensity);
+ dev_warn(&device->cdev->dev, "An I/O control call used "
+ "incorrect flags 0x%x\n", fdata->intensity);
return ERR_PTR(-EINVAL);
}
/* Allocate the format ccw request. */
data = fcp->data;
ccw = fcp->cpaddr;
- switch (fdata->intensity & ~0x08) {
+ switch (intensity & ~0x08) {
case 0x00: /* Normal format. */
define_extent(ccw++, (struct DE_eckd_data *) data,
fdata->start_unit, fdata->start_unit,
DASD_ECKD_CCW_WRITE_CKD, device);
+ /* grant subsystem permission to format R0 */
+ if (r0_perm)
+ ((struct DE_eckd_data *)data)->ga_extended |= 0x04;
data += sizeof(struct DE_eckd_data);
ccw[-1].flags |= CCW_FLAG_CC;
locate_record(ccw++, (struct LO_eckd_data *) data,
data += sizeof(struct LO_eckd_data);
break;
}
- if (fdata->intensity & 0x01) { /* write record zero */
+ if (intensity & 0x01) { /* write record zero */
ect = (struct eckd_count *) data;
data += sizeof(struct eckd_count);
- ect->cyl = cyl;
- ect->head = head;
+ ect->cyl = address.cyl;
+ ect->head = address.head;
ect->record = 0;
ect->kl = 0;
ect->dl = 8;
ccw->cda = (__u32)(addr_t) ect;
ccw++;
}
- if ((fdata->intensity & ~0x08) & 0x04) { /* erase track */
+ if ((intensity & ~0x08) & 0x04) { /* erase track */
ect = (struct eckd_count *) data;
data += sizeof(struct eckd_count);
- ect->cyl = cyl;
- ect->head = head;
+ ect->cyl = address.cyl;
+ ect->head = address.head;
ect->record = 1;
ect->kl = 0;
ect->dl = 0;
for (i = 0; i < rpt; i++) {
ect = (struct eckd_count *) data;
data += sizeof(struct eckd_count);
- ect->cyl = cyl;
- ect->head = head;
+ ect->cyl = address.cyl;
+ ect->head = address.head;
ect->record = i + 1;
ect->kl = 0;
ect->dl = fdata->blksize;
/* Check for special tracks 0-1 when formatting CDL */
- if ((fdata->intensity & 0x08) &&
+ if ((intensity & 0x08) &&
fdata->start_unit == 0) {
if (i < 3) {
ect->kl = 4;
ect->dl = sizes_trk0[i] - 4;
}
}
- if ((fdata->intensity & 0x08) &&
+ if ((intensity & 0x08) &&
fdata->start_unit == 1) {
ect->kl = 44;
ect->dl = LABEL_SIZE - 44;
struct irb *irb)
{
char mask;
+ char *sense = NULL;
/* first of all check for state change pending interrupt */
mask = DEV_STAT_ATTENTION | DEV_STAT_DEV_END | DEV_STAT_UNIT_EXCEP;
- if ((irb->scsw.cmd.dstat & mask) == mask) {
+ if ((scsw_dstat(&irb->scsw) & mask) == mask) {
dasd_generic_handle_state_change(device);
return;
}
/* summary unit check */
- if ((irb->scsw.cmd.dstat & DEV_STAT_UNIT_CHECK) &&
+ if ((scsw_dstat(&irb->scsw) & DEV_STAT_UNIT_CHECK) &&
(irb->ecw[7] == 0x0D)) {
dasd_alias_handle_summary_unit_check(device, irb);
return;
}
-
+ sense = dasd_get_sense(irb);
/* service information message SIM */
- if (irb->esw.esw0.erw.cons && !(irb->ecw[27] & DASD_SENSE_BIT_0) &&
- ((irb->ecw[6] & DASD_SIM_SENSE) == DASD_SIM_SENSE)) {
- dasd_3990_erp_handle_sim(device, irb->ecw);
+ if (sense && !(sense[27] & DASD_SENSE_BIT_0) &&
+ ((sense[6] & DASD_SIM_SENSE) == DASD_SIM_SENSE)) {
+ dasd_3990_erp_handle_sim(device, sense);
dasd_schedule_device_bh(device);
return;
}
- if ((irb->scsw.cmd.cc == 1) &&
- (irb->scsw.cmd.fctl & SCSW_FCTL_START_FUNC) &&
- (irb->scsw.cmd.actl & SCSW_ACTL_START_PEND) &&
- (irb->scsw.cmd.stctl & SCSW_STCTL_STATUS_PEND)) {
+ if ((scsw_cc(&irb->scsw) == 1) &&
+ (scsw_fctl(&irb->scsw) & SCSW_FCTL_START_FUNC) &&
+ (scsw_actl(&irb->scsw) & SCSW_ACTL_START_PEND) &&
+ (scsw_stctl(&irb->scsw) & SCSW_STCTL_STATUS_PEND)) {
/* fake irb do nothing, they are handled elsewhere */
dasd_schedule_device_bh(device);
return;
}
- if (!(irb->esw.esw0.erw.cons)) {
+ if (!sense) {
/* just report other unsolicited interrupts */
- DEV_MESSAGE(KERN_ERR, device, "%s",
+ DBF_DEV_EVENT(DBF_ERR, device, "%s",
"unsolicited interrupt received");
} else {
- DEV_MESSAGE(KERN_ERR, device, "%s",
+ DBF_DEV_EVENT(DBF_ERR, device, "%s",
"unsolicited interrupt received "
"(sense available)");
- device->discipline->dump_sense(device, NULL, irb);
+ device->discipline->dump_sense_dbf(device, NULL, irb,
+ "unsolicited");
}
dasd_schedule_device_bh(device);
return;
};
-static struct dasd_ccw_req *dasd_eckd_build_cp(struct dasd_device *startdev,
+
+static struct dasd_ccw_req *dasd_eckd_build_cp_cmd_single(
+ struct dasd_device *startdev,
struct dasd_block *block,
- struct request *req)
+ struct request *req,
+ sector_t first_rec,
+ sector_t last_rec,
+ sector_t first_trk,
+ sector_t last_trk,
+ unsigned int first_offs,
+ unsigned int last_offs,
+ unsigned int blk_per_trk,
+ unsigned int blksize)
{
struct dasd_eckd_private *private;
unsigned long *idaws;
struct req_iterator iter;
struct bio_vec *bv;
char *dst;
- unsigned int blksize, blk_per_trk, off;
+ unsigned int off;
int count, cidaw, cplength, datasize;
- sector_t recid, first_rec, last_rec;
- sector_t first_trk, last_trk;
- unsigned int first_offs, last_offs;
+ sector_t recid;
unsigned char cmd, rcmd;
int use_prefix;
struct dasd_device *basedev;
cmd = DASD_ECKD_CCW_WRITE_MT;
else
return ERR_PTR(-EINVAL);
- /* Calculate number of blocks/records per track. */
- blksize = block->bp_block;
- blk_per_trk = recs_per_track(&private->rdc_data, 0, blksize);
- /* Calculate record id of first and last block. */
- first_rec = first_trk = req->sector >> block->s2b_shift;
- first_offs = sector_div(first_trk, blk_per_trk);
- last_rec = last_trk =
- (req->sector + req->nr_sectors - 1) >> block->s2b_shift;
- last_offs = sector_div(last_trk, blk_per_trk);
+
/* Check struct bio and count the number of blocks for the request. */
count = 0;
cidaw = 0;
return cqr;
}
+static struct dasd_ccw_req *dasd_eckd_build_cp_cmd_track(
+ struct dasd_device *startdev,
+ struct dasd_block *block,
+ struct request *req,
+ sector_t first_rec,
+ sector_t last_rec,
+ sector_t first_trk,
+ sector_t last_trk,
+ unsigned int first_offs,
+ unsigned int last_offs,
+ unsigned int blk_per_trk,
+ unsigned int blksize)
+{
+ struct dasd_eckd_private *private;
+ unsigned long *idaws;
+ struct dasd_ccw_req *cqr;
+ struct ccw1 *ccw;
+ struct req_iterator iter;
+ struct bio_vec *bv;
+ char *dst, *idaw_dst;
+ unsigned int cidaw, cplength, datasize;
+ unsigned int tlf;
+ sector_t recid;
+ unsigned char cmd;
+ struct dasd_device *basedev;
+ unsigned int trkcount, count, count_to_trk_end;
+ unsigned int idaw_len, seg_len, part_len, len_to_track_end;
+ unsigned char new_track, end_idaw;
+ sector_t trkid;
+ unsigned int recoffs;
+
+ basedev = block->base;
+ private = (struct dasd_eckd_private *) basedev->private;
+ if (rq_data_dir(req) == READ)
+ cmd = DASD_ECKD_CCW_READ_TRACK_DATA;
+ else if (rq_data_dir(req) == WRITE)
+ cmd = DASD_ECKD_CCW_WRITE_TRACK_DATA;
+ else
+ return ERR_PTR(-EINVAL);
+
+ /* Track based I/O needs IDAWs for each page, and not just for
+ * 64 bit addresses. We need additional idals for pages
+ * that get filled from two tracks, so we use the number
+ * of records as upper limit.
+ */
+ cidaw = last_rec - first_rec + 1;
+ trkcount = last_trk - first_trk + 1;
+
+ /* 1x prefix + one read/write ccw per track */
+ cplength = 1 + trkcount;
+
+ /* on 31-bit we need space for two 32 bit addresses per page
+ * on 64-bit one 64 bit address
+ */
+ datasize = sizeof(struct PFX_eckd_data) +
+ cidaw * sizeof(unsigned long long);
+
+ /* Allocate the ccw request. */
+ cqr = dasd_smalloc_request(dasd_eckd_discipline.name,
+ cplength, datasize, startdev);
+ if (IS_ERR(cqr))
+ return cqr;
+ ccw = cqr->cpaddr;
+ /* transfer length factor: how many bytes to read from the last track */
+ if (first_trk == last_trk)
+ tlf = last_offs - first_offs + 1;
+ else
+ tlf = last_offs + 1;
+ tlf *= blksize;
+
+ if (prefix_LRE(ccw++, cqr->data, first_trk,
+ last_trk, cmd, basedev, startdev,
+ 1 /* format */, first_offs + 1,
+ trkcount, blksize,
+ tlf) == -EAGAIN) {
+ /* Clock not in sync and XRC is enabled.
+ * Try again later.
+ */
+ dasd_sfree_request(cqr, startdev);
+ return ERR_PTR(-EAGAIN);
+ }
+
+ /*
+ * The translation of request into ccw programs must meet the
+ * following conditions:
+ * - all idaws but the first and the last must address full pages
+ * (or 2K blocks on 31-bit)
+ * - the scope of a ccw and it's idal ends with the track boundaries
+ */
+ idaws = (unsigned long *) (cqr->data + sizeof(struct PFX_eckd_data));
+ recid = first_rec;
+ new_track = 1;
+ end_idaw = 0;
+ len_to_track_end = 0;
+ idaw_dst = 0;
+ idaw_len = 0;
+ rq_for_each_segment(bv, req, iter) {
+ dst = page_address(bv->bv_page) + bv->bv_offset;
+ seg_len = bv->bv_len;
+ while (seg_len) {
+ if (new_track) {
+ trkid = recid;
+ recoffs = sector_div(trkid, blk_per_trk);
+ count_to_trk_end = blk_per_trk - recoffs;
+ count = min((last_rec - recid + 1),
+ (sector_t)count_to_trk_end);
+ len_to_track_end = count * blksize;
+ ccw[-1].flags |= CCW_FLAG_CC;
+ ccw->cmd_code = cmd;
+ ccw->count = len_to_track_end;
+ ccw->cda = (__u32)(addr_t)idaws;
+ ccw->flags = CCW_FLAG_IDA;
+ ccw++;
+ recid += count;
+ new_track = 0;
+ }
+ /* If we start a new idaw, everything is fine and the
+ * start of the new idaw is the start of this segment.
+ * If we continue an idaw, we must make sure that the
+ * current segment begins where the so far accumulated
+ * idaw ends
+ */
+ if (!idaw_dst)
+ idaw_dst = dst;
+ if ((idaw_dst + idaw_len) != dst) {
+ dasd_sfree_request(cqr, startdev);
+ return ERR_PTR(-ERANGE);
+ }
+ part_len = min(seg_len, len_to_track_end);
+ seg_len -= part_len;
+ dst += part_len;
+ idaw_len += part_len;
+ len_to_track_end -= part_len;
+ /* collected memory area ends on an IDA_BLOCK border,
+ * -> create an idaw
+ * idal_create_words will handle cases where idaw_len
+ * is larger then IDA_BLOCK_SIZE
+ */
+ if (!(__pa(idaw_dst + idaw_len) & (IDA_BLOCK_SIZE-1)))
+ end_idaw = 1;
+ /* We also need to end the idaw at track end */
+ if (!len_to_track_end) {
+ new_track = 1;
+ end_idaw = 1;
+ }
+ if (end_idaw) {
+ idaws = idal_create_words(idaws, idaw_dst,
+ idaw_len);
+ idaw_dst = 0;
+ idaw_len = 0;
+ end_idaw = 0;
+ }
+ }
+ }
+
+ if (blk_noretry_request(req) ||
+ block->base->features & DASD_FEATURE_FAILFAST)
+ set_bit(DASD_CQR_FLAGS_FAILFAST, &cqr->flags);
+ cqr->startdev = startdev;
+ cqr->memdev = startdev;
+ cqr->block = block;
+ cqr->expires = 5 * 60 * HZ; /* 5 minutes */
+ cqr->lpm = private->path_data.ppm;
+ cqr->retries = 256;
+ cqr->buildclk = get_clock();
+ cqr->status = DASD_CQR_FILLED;
+ return cqr;
+}
+
+static int prepare_itcw(struct itcw *itcw,
+ unsigned int trk, unsigned int totrk, int cmd,
+ struct dasd_device *basedev,
+ struct dasd_device *startdev,
+ unsigned int rec_on_trk, int count,
+ unsigned int blksize,
+ unsigned int total_data_size,
+ unsigned int tlf,
+ unsigned int blk_per_trk)
+{
+ struct PFX_eckd_data pfxdata;
+ struct dasd_eckd_private *basepriv, *startpriv;
+ struct DE_eckd_data *dedata;
+ struct LRE_eckd_data *lredata;
+ struct dcw *dcw;
+
+ u32 begcyl, endcyl;
+ u16 heads, beghead, endhead;
+ u8 pfx_cmd;
+
+ int rc = 0;
+ int sector = 0;
+ int dn, d;
+
+
+ /* setup prefix data */
+ basepriv = (struct dasd_eckd_private *) basedev->private;
+ startpriv = (struct dasd_eckd_private *) startdev->private;
+ dedata = &pfxdata.define_extent;
+ lredata = &pfxdata.locate_record;
+
+ memset(&pfxdata, 0, sizeof(pfxdata));
+ pfxdata.format = 1; /* PFX with LRE */
+ pfxdata.base_address = basepriv->ned->unit_addr;
+ pfxdata.base_lss = basepriv->ned->ID;
+ pfxdata.validity.define_extent = 1;
+
+ /* private uid is kept up to date, conf_data may be outdated */
+ if (startpriv->uid.type != UA_BASE_DEVICE) {
+ pfxdata.validity.verify_base = 1;
+ if (startpriv->uid.type == UA_HYPER_PAV_ALIAS)
+ pfxdata.validity.hyper_pav = 1;
+ }
+
+ switch (cmd) {
+ case DASD_ECKD_CCW_READ_TRACK_DATA:
+ dedata->mask.perm = 0x1;
+ dedata->attributes.operation = basepriv->attrib.operation;
+ dedata->blk_size = blksize;
+ dedata->ga_extended |= 0x42;
+ lredata->operation.orientation = 0x0;
+ lredata->operation.operation = 0x0C;
+ lredata->auxiliary.check_bytes = 0x01;
+ pfx_cmd = DASD_ECKD_CCW_PFX_READ;
+ break;
+ case DASD_ECKD_CCW_WRITE_TRACK_DATA:
+ dedata->mask.perm = 0x02;
+ dedata->attributes.operation = basepriv->attrib.operation;
+ dedata->blk_size = blksize;
+ rc = check_XRC_on_prefix(&pfxdata, basedev);
+ dedata->ga_extended |= 0x42;
+ lredata->operation.orientation = 0x0;
+ lredata->operation.operation = 0x3F;
+ lredata->extended_operation = 0x23;
+ lredata->auxiliary.check_bytes = 0x2;
+ pfx_cmd = DASD_ECKD_CCW_PFX;
+ break;
+ default:
+ DBF_DEV_EVENT(DBF_ERR, basedev,
+ "prepare itcw, unknown opcode 0x%x", cmd);
+ BUG();
+ break;
+ }
+ if (rc)
+ return rc;
+
+ dedata->attributes.mode = 0x3; /* ECKD */
+
+ heads = basepriv->rdc_data.trk_per_cyl;
+ begcyl = trk / heads;
+ beghead = trk % heads;
+ endcyl = totrk / heads;
+ endhead = totrk % heads;
+
+ /* check for sequential prestage - enhance cylinder range */
+ if (dedata->attributes.operation == DASD_SEQ_PRESTAGE ||
+ dedata->attributes.operation == DASD_SEQ_ACCESS) {
+
+ if (endcyl + basepriv->attrib.nr_cyl < basepriv->real_cyl)
+ endcyl += basepriv->attrib.nr_cyl;
+ else
+ endcyl = (basepriv->real_cyl - 1);
+ }
+
+ set_ch_t(&dedata->beg_ext, begcyl, beghead);
+ set_ch_t(&dedata->end_ext, endcyl, endhead);
+
+ dedata->ep_format = 0x20; /* records per track is valid */
+ dedata->ep_rec_per_track = blk_per_trk;
+
+ if (rec_on_trk) {
+ switch (basepriv->rdc_data.dev_type) {
+ case 0x3390:
+ dn = ceil_quot(blksize + 6, 232);
+ d = 9 + ceil_quot(blksize + 6 * (dn + 1), 34);
+ sector = (49 + (rec_on_trk - 1) * (10 + d)) / 8;
+ break;
+ case 0x3380:
+ d = 7 + ceil_quot(blksize + 12, 32);
+ sector = (39 + (rec_on_trk - 1) * (8 + d)) / 7;
+ break;
+ }
+ }
+
+ lredata->auxiliary.length_valid = 1;
+ lredata->auxiliary.length_scope = 1;
+ lredata->auxiliary.imbedded_ccw_valid = 1;
+ lredata->length = tlf;
+ lredata->imbedded_ccw = cmd;
+ lredata->count = count;
+ lredata->sector = sector;
+ set_ch_t(&lredata->seek_addr, begcyl, beghead);
+ lredata->search_arg.cyl = lredata->seek_addr.cyl;
+ lredata->search_arg.head = lredata->seek_addr.head;
+ lredata->search_arg.record = rec_on_trk;
+
+ dcw = itcw_add_dcw(itcw, pfx_cmd, 0,
+ &pfxdata, sizeof(pfxdata), total_data_size);
+
+ return rc;
+}
+
+static struct dasd_ccw_req *dasd_eckd_build_cp_tpm_track(
+ struct dasd_device *startdev,
+ struct dasd_block *block,
+ struct request *req,
+ sector_t first_rec,
+ sector_t last_rec,
+ sector_t first_trk,
+ sector_t last_trk,
+ unsigned int first_offs,
+ unsigned int last_offs,
+ unsigned int blk_per_trk,
+ unsigned int blksize)
+{
+ struct dasd_eckd_private *private;
+ struct dasd_ccw_req *cqr;
+ struct req_iterator iter;
+ struct bio_vec *bv;
+ char *dst;
+ unsigned int trkcount, ctidaw;
+ unsigned char cmd;
+ struct dasd_device *basedev;
+ unsigned int tlf;
+ struct itcw *itcw;
+ struct tidaw *last_tidaw = NULL;
+ int itcw_op;
+ size_t itcw_size;
+
+ basedev = block->base;
+ private = (struct dasd_eckd_private *) basedev->private;
+ if (rq_data_dir(req) == READ) {
+ cmd = DASD_ECKD_CCW_READ_TRACK_DATA;
+ itcw_op = ITCW_OP_READ;
+ } else if (rq_data_dir(req) == WRITE) {
+ cmd = DASD_ECKD_CCW_WRITE_TRACK_DATA;
+ itcw_op = ITCW_OP_WRITE;
+ } else
+ return ERR_PTR(-EINVAL);
+
+ /* trackbased I/O needs address all memory via TIDAWs,
+ * not just for 64 bit addresses. This allows us to map
+ * each segment directly to one tidaw.
+ */
+ trkcount = last_trk - first_trk + 1;
+ ctidaw = 0;
+ rq_for_each_segment(bv, req, iter) {
+ ++ctidaw;
+ }
+
+ /* Allocate the ccw request. */
+ itcw_size = itcw_calc_size(0, ctidaw, 0);
+ cqr = dasd_smalloc_request(dasd_eckd_discipline.name,
+ 0, itcw_size, startdev);
+ if (IS_ERR(cqr))
+ return cqr;
+
+ cqr->cpmode = 1;
+ cqr->startdev = startdev;
+ cqr->memdev = startdev;
+ cqr->block = block;
+ cqr->expires = 100*HZ;
+ cqr->buildclk = get_clock();
+ cqr->status = DASD_CQR_FILLED;
+ cqr->retries = 10;
+
+ /* transfer length factor: how many bytes to read from the last track */
+ if (first_trk == last_trk)
+ tlf = last_offs - first_offs + 1;
+ else
+ tlf = last_offs + 1;
+ tlf *= blksize;
+
+ itcw = itcw_init(cqr->data, itcw_size, itcw_op, 0, ctidaw, 0);
+ cqr->cpaddr = itcw_get_tcw(itcw);
+
+ if (prepare_itcw(itcw, first_trk, last_trk,
+ cmd, basedev, startdev,
+ first_offs + 1,
+ trkcount, blksize,
+ (last_rec - first_rec + 1) * blksize,
+ tlf, blk_per_trk) == -EAGAIN) {
+ /* Clock not in sync and XRC is enabled.
+ * Try again later.
+ */
+ dasd_sfree_request(cqr, startdev);
+ return ERR_PTR(-EAGAIN);
+ }
+
+ /*
+ * A tidaw can address 4k of memory, but must not cross page boundaries
+ * We can let the block layer handle this by setting
+ * blk_queue_segment_boundary to page boundaries and
+ * blk_max_segment_size to page size when setting up the request queue.
+ */
+ rq_for_each_segment(bv, req, iter) {
+ dst = page_address(bv->bv_page) + bv->bv_offset;
+ last_tidaw = itcw_add_tidaw(itcw, 0x00, dst, bv->bv_len);
+ if (IS_ERR(last_tidaw))
+ return (struct dasd_ccw_req *)last_tidaw;
+ }
+
+ last_tidaw->flags |= 0x80;
+ itcw_finalize(itcw);
+
+ if (blk_noretry_request(req) ||
+ block->base->features & DASD_FEATURE_FAILFAST)
+ set_bit(DASD_CQR_FLAGS_FAILFAST, &cqr->flags);
+ cqr->startdev = startdev;
+ cqr->memdev = startdev;
+ cqr->block = block;
+ cqr->expires = 5 * 60 * HZ; /* 5 minutes */
+ cqr->lpm = private->path_data.ppm;
+ cqr->retries = 256;
+ cqr->buildclk = get_clock();
+ cqr->status = DASD_CQR_FILLED;
+ return cqr;
+}
+
+static struct dasd_ccw_req *dasd_eckd_build_cp(struct dasd_device *startdev,
+ struct dasd_block *block,
+ struct request *req)
+{
+ int tpm, cmdrtd, cmdwtd;
+ int use_prefix;
+
+ struct dasd_eckd_private *private;
+ int fcx_in_css, fcx_in_gneq, fcx_in_features;
+ struct dasd_device *basedev;
+ sector_t first_rec, last_rec;
+ sector_t first_trk, last_trk;
+ unsigned int first_offs, last_offs;
+ unsigned int blk_per_trk, blksize;
+ int cdlspecial;
+ struct dasd_ccw_req *cqr;
+
+ basedev = block->base;
+ private = (struct dasd_eckd_private *) basedev->private;
+
+ /* Calculate number of blocks/records per track. */
+ blksize = block->bp_block;
+ blk_per_trk = recs_per_track(&private->rdc_data, 0, blksize);
+ /* Calculate record id of first and last block. */
+ first_rec = first_trk = req->sector >> block->s2b_shift;
+ first_offs = sector_div(first_trk, blk_per_trk);
+ last_rec = last_trk =
+ (req->sector + req->nr_sectors - 1) >> block->s2b_shift;
+ last_offs = sector_div(last_trk, blk_per_trk);
+ cdlspecial = (private->uses_cdl && first_rec < 2*blk_per_trk);
+
+ /* is transport mode supported ? */
+ fcx_in_css = css_general_characteristics.fcx;
+ fcx_in_gneq = private->gneq->reserved2[7] & 0x04;
+ fcx_in_features = private->features.feature[40] & 0x80;
+ tpm = fcx_in_css && fcx_in_gneq && fcx_in_features;
+
+ /* is read track data and write track data in command mode supported? */
+ cmdrtd = private->features.feature[9] & 0x20;
+ cmdwtd = private->features.feature[12] & 0x40;
+ use_prefix = private->features.feature[8] & 0x01;
+
+ cqr = NULL;
+ if (cdlspecial || dasd_page_cache) {
+ /* do nothing, just fall through to the cmd mode single case */
+ } else if (!dasd_nofcx && tpm && (first_trk == last_trk)) {
+ cqr = dasd_eckd_build_cp_tpm_track(startdev, block, req,
+ first_rec, last_rec,
+ first_trk, last_trk,
+ first_offs, last_offs,
+ blk_per_trk, blksize);
+ if (IS_ERR(cqr) && PTR_ERR(cqr) != -EAGAIN)
+ cqr = NULL;
+ } else if (use_prefix &&
+ (((rq_data_dir(req) == READ) && cmdrtd) ||
+ ((rq_data_dir(req) == WRITE) && cmdwtd))) {
+ cqr = dasd_eckd_build_cp_cmd_track(startdev, block, req,
+ first_rec, last_rec,
+ first_trk, last_trk,
+ first_offs, last_offs,
+ blk_per_trk, blksize);
+ if (IS_ERR(cqr) && PTR_ERR(cqr) != -EAGAIN)
+ cqr = NULL;
+ }
+ if (!cqr)
+ cqr = dasd_eckd_build_cp_cmd_single(startdev, block, req,
+ first_rec, last_rec,
+ first_trk, last_trk,
+ first_offs, last_offs,
+ blk_per_trk, blksize);
+ return cqr;
+}
+
static int
dasd_eckd_free_cp(struct dasd_ccw_req *cqr, struct request *req)
{
}
/*
- * Modify ccw chain in cqr so it can be started on a base device.
+ * Modify ccw/tcw in cqr so it can be started on a base device.
*
* Note that this is not enough to restart the cqr!
* Either reset cqr->startdev as well (summary unit check handling)
{
struct ccw1 *ccw;
struct PFX_eckd_data *pfxdata;
-
- ccw = cqr->cpaddr;
- pfxdata = cqr->data;
-
- if (ccw->cmd_code == DASD_ECKD_CCW_PFX) {
+ struct tcw *tcw;
+ struct tccb *tccb;
+ struct dcw *dcw;
+
+ if (cqr->cpmode == 1) {
+ tcw = cqr->cpaddr;
+ tccb = tcw_get_tccb(tcw);
+ dcw = (struct dcw *)&tccb->tca[0];
+ pfxdata = (struct PFX_eckd_data *)&dcw->cd[0];
pfxdata->validity.verify_base = 0;
pfxdata->validity.hyper_pav = 0;
+ } else {
+ ccw = cqr->cpaddr;
+ pfxdata = cqr->data;
+ if (ccw->cmd_code == DASD_ECKD_CCW_PFX) {
+ pfxdata->validity.verify_base = 0;
+ pfxdata->validity.hyper_pav = 0;
+ }
}
}
{
struct dasd_ccw_req *cqr;
int rc;
+ struct ccw1 *ccw;
if (!capable(CAP_SYS_ADMIN))
return -EACCES;
cqr = dasd_smalloc_request(dasd_eckd_discipline.name,
1, 32, device);
if (IS_ERR(cqr)) {
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"Could not allocate initialization request");
return PTR_ERR(cqr);
}
- cqr->cpaddr->cmd_code = DASD_ECKD_CCW_RELEASE;
- cqr->cpaddr->flags |= CCW_FLAG_SLI;
- cqr->cpaddr->count = 32;
- cqr->cpaddr->cda = (__u32)(addr_t) cqr->data;
+ ccw = cqr->cpaddr;
+ ccw->cmd_code = DASD_ECKD_CCW_RELEASE;
+ ccw->flags |= CCW_FLAG_SLI;
+ ccw->count = 32;
+ ccw->cda = (__u32)(addr_t) cqr->data;
cqr->startdev = device;
cqr->memdev = device;
clear_bit(DASD_CQR_FLAGS_USE_ERP, &cqr->flags);
{
struct dasd_ccw_req *cqr;
int rc;
+ struct ccw1 *ccw;
if (!capable(CAP_SYS_ADMIN))
return -EACCES;
cqr = dasd_smalloc_request(dasd_eckd_discipline.name,
1, 32, device);
if (IS_ERR(cqr)) {
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"Could not allocate initialization request");
return PTR_ERR(cqr);
}
- cqr->cpaddr->cmd_code = DASD_ECKD_CCW_RESERVE;
- cqr->cpaddr->flags |= CCW_FLAG_SLI;
- cqr->cpaddr->count = 32;
- cqr->cpaddr->cda = (__u32)(addr_t) cqr->data;
+ ccw = cqr->cpaddr;
+ ccw->cmd_code = DASD_ECKD_CCW_RESERVE;
+ ccw->flags |= CCW_FLAG_SLI;
+ ccw->count = 32;
+ ccw->cda = (__u32)(addr_t) cqr->data;
cqr->startdev = device;
cqr->memdev = device;
clear_bit(DASD_CQR_FLAGS_USE_ERP, &cqr->flags);
{
struct dasd_ccw_req *cqr;
int rc;
+ struct ccw1 *ccw;
if (!capable(CAP_SYS_ADMIN))
return -EACCES;
cqr = dasd_smalloc_request(dasd_eckd_discipline.name,
1, 32, device);
if (IS_ERR(cqr)) {
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"Could not allocate initialization request");
return PTR_ERR(cqr);
}
- cqr->cpaddr->cmd_code = DASD_ECKD_CCW_SLCK;
- cqr->cpaddr->flags |= CCW_FLAG_SLI;
- cqr->cpaddr->count = 32;
- cqr->cpaddr->cda = (__u32)(addr_t) cqr->data;
+ ccw = cqr->cpaddr;
+ ccw->cmd_code = DASD_ECKD_CCW_SLCK;
+ ccw->flags |= CCW_FLAG_SLI;
+ ccw->count = 32;
+ ccw->cda = (__u32)(addr_t) cqr->data;
cqr->startdev = device;
cqr->memdev = device;
clear_bit(DASD_CQR_FLAGS_USE_ERP, &cqr->flags);
sizeof(struct dasd_rssd_perf_stats_t)),
device);
if (IS_ERR(cqr)) {
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"Could not allocate initialization request");
return PTR_ERR(cqr);
}
return -EFAULT;
private->attrib = attrib;
- DEV_MESSAGE(KERN_INFO, device,
- "cache operation mode set to %x (%i cylinder prestage)",
- private->attrib.operation, private->attrib.nr_cyl);
+ dev_info(&device->cdev->dev,
+ "The DASD cache mode was set to %x (%i cylinder prestage)\n",
+ private->attrib.operation, private->attrib.nr_cyl);
return 0;
}
/* setup CCWs for PSF + RSSD */
cqr = dasd_smalloc_request("ECKD", 2 , 0, device);
if (IS_ERR(cqr)) {
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"Could not allocate initialization request");
rc = PTR_ERR(cqr);
goto out_free;
return len;
}
+static void
+dasd_eckd_dump_sense_dbf(struct dasd_device *device, struct dasd_ccw_req *req,
+ struct irb *irb, char *reason)
+{
+ u64 *sense;
+ int sl;
+ struct tsb *tsb;
+
+ sense = NULL;
+ tsb = NULL;
+ if (req && scsw_is_tm(&req->irb.scsw)) {
+ if (irb->scsw.tm.tcw)
+ tsb = tcw_get_tsb(
+ (struct tcw *)(unsigned long)irb->scsw.tm.tcw);
+ if (tsb && (irb->scsw.tm.fcxs == 0x01)) {
+ switch (tsb->flags & 0x07) {
+ case 1: /* tsa_iostat */
+ sense = (u64 *)tsb->tsa.iostat.sense;
+ break;
+ case 2: /* ts_ddpc */
+ sense = (u64 *)tsb->tsa.ddpc.sense;
+ break;
+ case 3: /* tsa_intrg */
+ break;
+ }
+ }
+ } else {
+ if (irb->esw.esw0.erw.cons)
+ sense = (u64 *)irb->ecw;
+ }
+ if (sense) {
+ for (sl = 0; sl < 4; sl++) {
+ DBF_DEV_EVENT(DBF_EMERG, device,
+ "%s: %016llx %016llx %016llx %016llx",
+ reason, sense[0], sense[1], sense[2],
+ sense[3]);
+ }
+ } else {
+ DBF_DEV_EVENT(DBF_EMERG, device, "%s",
+ "SORRY - NO VALID SENSE AVAILABLE\n");
+ }
+}
+
/*
* Print sense data and related channel program.
* Parts are printed because printk buffer is only 1024 bytes.
*/
-static void dasd_eckd_dump_sense(struct dasd_device *device,
+static void dasd_eckd_dump_sense_ccw(struct dasd_device *device,
struct dasd_ccw_req *req, struct irb *irb)
{
char *page;
page = (char *) get_zeroed_page(GFP_ATOMIC);
if (page == NULL) {
- DEV_MESSAGE(KERN_ERR, device, " %s",
- "No memory to dump sense data");
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
+ "No memory to dump sense data\n");
return;
}
/* dump the sense data */
dev_name(&device->cdev->dev));
len += sprintf(page + len, KERN_ERR PRINTK_HEADER
" in req: %p CS: 0x%02X DS: 0x%02X\n", req,
- irb->scsw.cmd.cstat, irb->scsw.cmd.dstat);
+ scsw_cstat(&irb->scsw), scsw_dstat(&irb->scsw));
len += sprintf(page + len, KERN_ERR PRINTK_HEADER
" device %s: Failing CCW: %p\n",
dev_name(&device->cdev->dev),
free_page((unsigned long) page);
}
+
+/*
+ * Print sense data from a tcw.
+ */
+static void dasd_eckd_dump_sense_tcw(struct dasd_device *device,
+ struct dasd_ccw_req *req, struct irb *irb)
+{
+ char *page;
+ int len, sl, sct, residual;
+
+ struct tsb *tsb;
+ u8 *sense;
+
+
+ page = (char *) get_zeroed_page(GFP_ATOMIC);
+ if (page == NULL) {
+ DBF_DEV_EVENT(DBF_WARNING, device, " %s",
+ "No memory to dump sense data");
+ return;
+ }
+ /* dump the sense data */
+ len = sprintf(page, KERN_ERR PRINTK_HEADER
+ " I/O status report for device %s:\n",
+ dev_name(&device->cdev->dev));
+ len += sprintf(page + len, KERN_ERR PRINTK_HEADER
+ " in req: %p CS: 0x%02X DS: 0x%02X "
+ "fcxs: 0x%02X schxs: 0x%02X\n", req,
+ scsw_cstat(&irb->scsw), scsw_dstat(&irb->scsw),
+ irb->scsw.tm.fcxs, irb->scsw.tm.schxs);
+ len += sprintf(page + len, KERN_ERR PRINTK_HEADER
+ " device %s: Failing TCW: %p\n",
+ dev_name(&device->cdev->dev),
+ (void *) (addr_t) irb->scsw.tm.tcw);
+
+ tsb = NULL;
+ sense = NULL;
+ if (irb->scsw.tm.tcw)
+ tsb = tcw_get_tsb(
+ (struct tcw *)(unsigned long)irb->scsw.tm.tcw);
+
+ if (tsb && (irb->scsw.tm.fcxs == 0x01)) {
+ len += sprintf(page + len, KERN_ERR PRINTK_HEADER
+ " tsb->length %d\n", tsb->length);
+ len += sprintf(page + len, KERN_ERR PRINTK_HEADER
+ " tsb->flags %x\n", tsb->flags);
+ len += sprintf(page + len, KERN_ERR PRINTK_HEADER
+ " tsb->dcw_offset %d\n", tsb->dcw_offset);
+ len += sprintf(page + len, KERN_ERR PRINTK_HEADER
+ " tsb->count %d\n", tsb->count);
+ residual = tsb->count - 28;
+ len += sprintf(page + len, KERN_ERR PRINTK_HEADER
+ " residual %d\n", residual);
+
+ switch (tsb->flags & 0x07) {
+ case 1: /* tsa_iostat */
+ len += sprintf(page + len, KERN_ERR PRINTK_HEADER
+ " tsb->tsa.iostat.dev_time %d\n",
+ tsb->tsa.iostat.dev_time);
+ len += sprintf(page + len, KERN_ERR PRINTK_HEADER
+ " tsb->tsa.iostat.def_time %d\n",
+ tsb->tsa.iostat.def_time);
+ len += sprintf(page + len, KERN_ERR PRINTK_HEADER
+ " tsb->tsa.iostat.queue_time %d\n",
+ tsb->tsa.iostat.queue_time);
+ len += sprintf(page + len, KERN_ERR PRINTK_HEADER
+ " tsb->tsa.iostat.dev_busy_time %d\n",
+ tsb->tsa.iostat.dev_busy_time);
+ len += sprintf(page + len, KERN_ERR PRINTK_HEADER
+ " tsb->tsa.iostat.dev_act_time %d\n",
+ tsb->tsa.iostat.dev_act_time);
+ sense = tsb->tsa.iostat.sense;
+ break;
+ case 2: /* ts_ddpc */
+ len += sprintf(page + len, KERN_ERR PRINTK_HEADER
+ " tsb->tsa.ddpc.rc %d\n", tsb->tsa.ddpc.rc);
+ len += sprintf(page + len, KERN_ERR PRINTK_HEADER
+ " tsb->tsa.ddpc.rcq: ");
+ for (sl = 0; sl < 16; sl++) {
+ for (sct = 0; sct < 8; sct++) {
+ len += sprintf(page + len, " %02x",
+ tsb->tsa.ddpc.rcq[sl]);
+ }
+ len += sprintf(page + len, "\n");
+ }
+ sense = tsb->tsa.ddpc.sense;
+ break;
+ case 3: /* tsa_intrg */
+ len += sprintf(page + len, KERN_ERR PRINTK_HEADER
+ " tsb->tsa.intrg.: not supportet yet \n");
+ break;
+ }
+
+ if (sense) {
+ for (sl = 0; sl < 4; sl++) {
+ len += sprintf(page + len,
+ KERN_ERR PRINTK_HEADER
+ " Sense(hex) %2d-%2d:",
+ (8 * sl), ((8 * sl) + 7));
+ for (sct = 0; sct < 8; sct++) {
+ len += sprintf(page + len, " %02x",
+ sense[8 * sl + sct]);
+ }
+ len += sprintf(page + len, "\n");
+ }
+
+ if (sense[27] & DASD_SENSE_BIT_0) {
+ /* 24 Byte Sense Data */
+ sprintf(page + len, KERN_ERR PRINTK_HEADER
+ " 24 Byte: %x MSG %x, "
+ "%s MSGb to SYSOP\n",
+ sense[7] >> 4, sense[7] & 0x0f,
+ sense[1] & 0x10 ? "" : "no");
+ } else {
+ /* 32 Byte Sense Data */
+ sprintf(page + len, KERN_ERR PRINTK_HEADER
+ " 32 Byte: Format: %x "
+ "Exception class %x\n",
+ sense[6] & 0x0f, sense[22] >> 4);
+ }
+ } else {
+ sprintf(page + len, KERN_ERR PRINTK_HEADER
+ " SORRY - NO VALID SENSE AVAILABLE\n");
+ }
+ } else {
+ sprintf(page + len, KERN_ERR PRINTK_HEADER
+ " SORRY - NO TSB DATA AVAILABLE\n");
+ }
+ printk("%s", page);
+ free_page((unsigned long) page);
+}
+
+static void dasd_eckd_dump_sense(struct dasd_device *device,
+ struct dasd_ccw_req *req, struct irb *irb)
+{
+ if (req && scsw_is_tm(&req->irb.scsw))
+ dasd_eckd_dump_sense_tcw(device, req, irb);
+ else
+ dasd_eckd_dump_sense_ccw(device, req, irb);
+}
+
+
/*
* max_blocks is dependent on the amount of storage that is available
* in the static io buffer for each device. Currently each device has
.build_cp = dasd_eckd_build_alias_cp,
.free_cp = dasd_eckd_free_alias_cp,
.dump_sense = dasd_eckd_dump_sense,
+ .dump_sense_dbf = dasd_eckd_dump_sense_dbf,
.fill_info = dasd_eckd_fill_info,
.ioctl = dasd_eckd_ioctl,
};
#define DASD_ECKD_CCW_RELEASE 0x94
#define DASD_ECKD_CCW_READ_CKD_MT 0x9e
#define DASD_ECKD_CCW_WRITE_CKD_MT 0x9d
+#define DASD_ECKD_CCW_WRITE_TRACK_DATA 0xA5
+#define DASD_ECKD_CCW_READ_TRACK_DATA 0xA6
#define DASD_ECKD_CCW_RESERVE 0xB4
#define DASD_ECKD_CCW_PFX 0xE7
+#define DASD_ECKD_CCW_PFX_READ 0xEA
#define DASD_ECKD_CCW_RSCK 0xF9
/*
#define PSF_ORDER_PRSSD 0x18
#define PSF_ORDER_SSC 0x1D
+/*
+ * Size that is reportet for large volumes in the old 16-bit no_cyl field
+ */
+#define LV_COMPAT_CYL 0xFFFE
+
/*****************************************************************************
* SECTION: Type Definitions
****************************************************************************/
unsigned long long ep_sys_time; /* Ext Parameter - System Time Stamp */
__u8 ep_format; /* Extended Parameter format byte */
__u8 ep_prio; /* Extended Parameter priority I/O byte */
- __u8 ep_reserved[6]; /* Extended Parameter Reserved */
+ __u8 ep_reserved1; /* Extended Parameter Reserved */
+ __u8 ep_rec_per_track; /* Number of records on a track */
+ __u8 ep_reserved[4]; /* Extended Parameter Reserved */
} __attribute__ ((packed));
struct LO_eckd_data {
__u16 length;
} __attribute__ ((packed));
+struct LRE_eckd_data {
+ struct {
+ unsigned char orientation:2;
+ unsigned char operation:6;
+ } __attribute__ ((packed)) operation;
+ struct {
+ unsigned char length_valid:1;
+ unsigned char length_scope:1;
+ unsigned char imbedded_ccw_valid:1;
+ unsigned char check_bytes:2;
+ unsigned char imbedded_count_valid:1;
+ unsigned char reserved:1;
+ unsigned char read_count_suffix:1;
+ } __attribute__ ((packed)) auxiliary;
+ __u8 imbedded_ccw;
+ __u8 count;
+ struct ch_t seek_addr;
+ struct chr_t search_arg;
+ __u8 sector;
+ __u16 length;
+ __u8 imbedded_count;
+ __u8 extended_operation;
+ __u16 extended_parameter_length;
+ __u8 extended_parameter[0];
+} __attribute__ ((packed));
+
/* Prefix data for format 0x00 and 0x01 */
struct PFX_eckd_data {
unsigned char format;
struct {
- unsigned char define_extend:1;
+ unsigned char define_extent:1;
unsigned char time_stamp:1;
unsigned char verify_base:1;
unsigned char hyper_pav:1;
__u8 aux;
__u8 base_lss;
__u8 reserved[7];
- struct DE_eckd_data define_extend;
- struct LO_eckd_data locate_record;
- __u8 LO_extended_data[4];
+ struct DE_eckd_data define_extent;
+ struct LRE_eckd_data locate_record;
} __attribute__ ((packed));
struct dasd_eckd_characteristics {
__u8 factor7;
__u8 factor8;
__u8 reserved2[3];
- __u8 reserved3[10];
+ __u8 reserved3[6];
+ __u32 long_no_cyl;
} __attribute__ ((packed));
/* elements of the configuration data */
int uses_cdl;
struct attrib_data_t attrib; /* e.g. cache operations */
struct dasd_rssd_features features;
+ u32 real_cyl;
/* alias managemnet */
struct dasd_uid uid;
* Author(s): Stefan Weinhuber <wein@de.ibm.com>
*/
+#define KMSG_COMPONENT "dasd"
+
#include <linux/init.h>
#include <linux/fs.h>
#include <linux/kernel.h>
struct dasd_eer_header header;
unsigned long flags;
struct eerbuffer *eerb;
+ char *sense;
/* go through cqr chain and count the valid sense data sets */
data_size = 0;
for (temp_cqr = cqr; temp_cqr; temp_cqr = temp_cqr->refers)
- if (temp_cqr->irb.esw.esw0.erw.cons)
+ if (dasd_get_sense(&temp_cqr->irb))
data_size += 32;
header.total_size = sizeof(header) + data_size + 4; /* "EOR" */
list_for_each_entry(eerb, &bufferlist, list) {
dasd_eer_start_record(eerb, header.total_size);
dasd_eer_write_buffer(eerb, (char *) &header, sizeof(header));
- for (temp_cqr = cqr; temp_cqr; temp_cqr = temp_cqr->refers)
- if (temp_cqr->irb.esw.esw0.erw.cons)
- dasd_eer_write_buffer(eerb, cqr->irb.ecw, 32);
+ for (temp_cqr = cqr; temp_cqr; temp_cqr = temp_cqr->refers) {
+ sense = dasd_get_sense(&temp_cqr->irb);
+ if (sense)
+ dasd_eer_write_buffer(eerb, sense, 32);
+ }
dasd_eer_write_buffer(eerb, "EOR", 4);
}
spin_unlock_irqrestore(&bufferlock, flags);
{
struct dasd_ccw_req *cqr;
unsigned long flags;
+ struct ccw1 *ccw;
if (device->eer_cqr)
return 0;
cqr->expires = 10 * HZ;
clear_bit(DASD_CQR_FLAGS_USE_ERP, &cqr->flags);
- cqr->cpaddr->cmd_code = DASD_ECKD_CCW_SNSS;
- cqr->cpaddr->count = SNSS_DATA_SIZE;
- cqr->cpaddr->flags = 0;
- cqr->cpaddr->cda = (__u32)(addr_t) cqr->data;
+ ccw = cqr->cpaddr;
+ ccw->cmd_code = DASD_ECKD_CCW_SNSS;
+ ccw->count = SNSS_DATA_SIZE;
+ ccw->flags = 0;
+ ccw->cda = (__u32)(addr_t) cqr->data;
cqr->buildclk = get_clock();
cqr->status = DASD_CQR_FILLED;
if (eerb->buffer_page_count < 1 ||
eerb->buffer_page_count > INT_MAX / PAGE_SIZE) {
kfree(eerb);
- MESSAGE(KERN_WARNING, "can't open device since module "
+ DBF_EVENT(DBF_WARNING, "can't open device since module "
"parameter eer_pages is smaller than 1 or"
" bigger than %d", (int)(INT_MAX / PAGE_SIZE));
unlock_kernel();
if (rc) {
kfree(dasd_eer_dev);
dasd_eer_dev = NULL;
- MESSAGE(KERN_ERR, "%s", "dasd_eer_init could not "
+ DBF_EVENT(DBF_ERR, "%s", "dasd_eer_init could not "
"register misc device");
return rc;
}
*
*/
+#define KMSG_COMPONENT "dasd"
+
#include <linux/ctype.h>
#include <linux/init.h>
/* just retry - there is nothing to save ... I got no sense data.... */
if (cqr->retries > 0) {
- DEV_MESSAGE (KERN_DEBUG, device,
+ DBF_DEV_EVENT(DBF_DEBUG, device,
"default ERP called (%i retries left)",
cqr->retries);
cqr->lpm = LPM_ANYPATH;
cqr->status = DASD_CQR_FILLED;
} else {
- DEV_MESSAGE (KERN_WARNING, device, "%s",
- "default ERP called (NO retry left)");
+ dev_err(&device->cdev->dev,
+ "default ERP has run out of retries and failed\n");
cqr->status = DASD_CQR_FAILED;
cqr->stopclk = get_clock();
}
device->discipline->dump_sense(device, cqr, irb);
}
+void
+dasd_log_sense_dbf(struct dasd_ccw_req *cqr, struct irb *irb)
+{
+ struct dasd_device *device;
+
+ device = cqr->startdev;
+ /* dump sense data to s390 debugfeature*/
+ if (device->discipline && device->discipline->dump_sense_dbf)
+ device->discipline->dump_sense_dbf(device, cqr, irb, "log");
+}
+EXPORT_SYMBOL(dasd_log_sense_dbf);
+
EXPORT_SYMBOL(dasd_default_erp_action);
EXPORT_SYMBOL(dasd_default_erp_postaction);
EXPORT_SYMBOL(dasd_alloc_erp_request);
EXPORT_SYMBOL(dasd_free_erp_request);
EXPORT_SYMBOL(dasd_log_sense);
+
*
*/
+#define KMSG_COMPONENT "dasd"
+
#include <linux/stddef.h>
#include <linux/kernel.h>
#include <asm/debug.h>
private = kzalloc(sizeof(struct dasd_fba_private),
GFP_KERNEL | GFP_DMA);
if (private == NULL) {
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "memory allocation failed for private "
- "data");
+ dev_warn(&device->cdev->dev,
+ "Allocating memory for private DASD "
+ "data failed\n");
return -ENOMEM;
}
device->private = (void *) private;
}
block = dasd_alloc_block();
if (IS_ERR(block)) {
- DEV_MESSAGE(KERN_WARNING, device, "%s",
- "could not allocate dasd block structure");
+ DBF_EVENT(DBF_WARNING, "could not allocate dasd block "
+ "structure for device: %s",
+ dev_name(&device->cdev->dev));
device->private = NULL;
kfree(private);
return PTR_ERR(block);
rdc_data = (void *) &(private->rdc_data);
rc = dasd_generic_read_dev_chars(device, "FBA ", &rdc_data, 32);
if (rc) {
- DEV_MESSAGE(KERN_WARNING, device,
- "Read device characteristics returned error %d",
- rc);
+ DBF_EVENT(DBF_WARNING, "Read device characteristics returned "
+ "error %d for device: %s",
+ rc, dev_name(&device->cdev->dev));
device->block = NULL;
dasd_free_block(block);
device->private = NULL;
return rc;
}
- DEV_MESSAGE(KERN_INFO, device,
- "%04X/%02X(CU:%04X/%02X) %dMB at(%d B/blk)",
- cdev->id.dev_type,
- cdev->id.dev_model,
- cdev->id.cu_type,
- cdev->id.cu_model,
- ((private->rdc_data.blk_bdsa *
- (private->rdc_data.blk_size >> 9)) >> 11),
- private->rdc_data.blk_size);
+ dev_info(&device->cdev->dev,
+ "New FBA DASD %04X/%02X (CU %04X/%02X) with %d MB "
+ "and %d B/blk\n",
+ cdev->id.dev_type,
+ cdev->id.dev_model,
+ cdev->id.cu_type,
+ cdev->id.cu_model,
+ ((private->rdc_data.blk_bdsa *
+ (private->rdc_data.blk_size >> 9)) >> 11),
+ private->rdc_data.blk_size);
return 0;
}
private = (struct dasd_fba_private *) block->base->private;
rc = dasd_check_blocksize(private->rdc_data.blk_size);
if (rc) {
- DEV_MESSAGE(KERN_INFO, block->base, "unknown blocksize %d",
+ DBF_DEV_EVENT(DBF_WARNING, block->base, "unknown blocksize %d",
private->rdc_data.blk_size);
return rc;
}
if (cqr->function == dasd_default_erp_action)
return dasd_default_erp_postaction;
- DEV_MESSAGE(KERN_WARNING, cqr->startdev, "unknown ERP action %p",
+ DBF_DEV_EVENT(DBF_WARNING, cqr->startdev, "unknown ERP action %p",
cqr->function);
return NULL;
}
}
/* check for unsolicited interrupts */
- DEV_MESSAGE(KERN_DEBUG, device, "%s",
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"unsolicited interrupt received");
- device->discipline->dump_sense(device, NULL, irb);
+ device->discipline->dump_sense_dbf(device, NULL, irb, "unsolicited");
dasd_schedule_device_bh(device);
return;
};
return 0;
}
+static void
+dasd_fba_dump_sense_dbf(struct dasd_device *device, struct dasd_ccw_req *req,
+ struct irb *irb, char *reason)
+{
+ int sl;
+ if (irb->esw.esw0.erw.cons) {
+ for (sl = 0; sl < 4; sl++) {
+ DBF_DEV_EVENT(DBF_EMERG, device,
+ "%s: %08x %08x %08x %08x",
+ reason, irb->ecw[8 * 0], irb->ecw[8 * 1],
+ irb->ecw[8 * 2], irb->ecw[8 * 3]);
+ }
+ } else {
+ DBF_DEV_EVENT(DBF_EMERG, device, "%s",
+ "SORRY - NO VALID SENSE AVAILABLE\n");
+ }
+}
+
+
static void
dasd_fba_dump_sense(struct dasd_device *device, struct dasd_ccw_req * req,
struct irb *irb)
page = (char *) get_zeroed_page(GFP_ATOMIC);
if (page == NULL) {
- DEV_MESSAGE(KERN_ERR, device, " %s",
+ DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"No memory to dump sense data");
return;
}
len += sprintf(page + len, KERN_ERR PRINTK_HEADER
" SORRY - NO VALID SENSE AVAILABLE\n");
}
- MESSAGE_LOG(KERN_ERR, "%s",
- page + sizeof(KERN_ERR PRINTK_HEADER));
+ printk(KERN_ERR "%s", page);
/* dump the Channel Program */
/* print first CCWs (maximum 8) */
len += sprintf(page + len, "\n");
act++;
}
- MESSAGE_LOG(KERN_ERR, "%s",
- page + sizeof(KERN_ERR PRINTK_HEADER));
+ printk(KERN_ERR "%s", page);
/* print failing CCW area */
act++;
}
if (len > 0)
- MESSAGE_LOG(KERN_ERR, "%s",
- page + sizeof(KERN_ERR PRINTK_HEADER));
+ printk(KERN_ERR "%s", page);
free_page((unsigned long) page);
}
.build_cp = dasd_fba_build_cp,
.free_cp = dasd_fba_free_cp,
.dump_sense = dasd_fba_dump_sense,
+ .dump_sense_dbf = dasd_fba_dump_sense_dbf,
.fill_info = dasd_fba_fill_info,
};
*
*/
+#define KMSG_COMPONENT "dasd"
+
#include <linux/interrupt.h>
#include <linux/fs.h>
#include <linux/blkpg.h>
/* Register to static dasd major 94 */
rc = register_blkdev(DASD_MAJOR, "dasd");
if (rc != 0) {
- MESSAGE(KERN_WARNING,
- "Couldn't register successfully to "
- "major no %d", DASD_MAJOR);
+ pr_warning("Registering the device driver with major number "
+ "%d failed\n", DASD_MAJOR);
return rc;
}
return 0;
d_data); \
} while(0)
+/* limit size for an errorstring */
+#define ERRORLENGTH 30
+
/* definition of dbf debug levels */
#define DBF_EMERG 0 /* system is unusable */
#define DBF_ALERT 1 /* action must be taken immediately */
struct dasd_block *block; /* the originating block device */
struct dasd_device *memdev; /* the device used to allocate this */
struct dasd_device *startdev; /* device the request is started on */
- struct ccw1 *cpaddr; /* address of channel program */
+ void *cpaddr; /* address of ccw or tcw */
+ unsigned char cpmode; /* 0 = cmd mode, 1 = itcw */
char status; /* status of this request */
short retries; /* A retry counter */
unsigned long flags; /* flags of this request */
dasd_erp_fn_t(*erp_postaction) (struct dasd_ccw_req *);
void (*dump_sense) (struct dasd_device *, struct dasd_ccw_req *,
struct irb *);
+ void (*dump_sense_dbf) (struct dasd_device *, struct dasd_ccw_req *,
+ struct irb *, char *);
void (*handle_unsolicited_interrupt) (struct dasd_device *,
struct irb *);
struct block_device *bdev;
atomic_t open_count;
- unsigned long blocks; /* size of volume in blocks */
+ unsigned long long blocks; /* size of volume in blocks */
unsigned int bp_block; /* bytes per block */
unsigned int s2b_shift; /* log2 (bp_block/512) */
void dasd_generic_handle_state_change(struct dasd_device *);
int dasd_generic_read_dev_chars(struct dasd_device *, char *, void **, int);
+char *dasd_get_sense(struct irb *);
/* externals in dasd_devmap.c */
extern int dasd_max_devindex;
extern int dasd_probeonly;
extern int dasd_autodetect;
extern int dasd_nopav;
+extern int dasd_nofcx;
int dasd_devmap_init(void);
void dasd_devmap_exit(void);
struct dasd_device *);
void dasd_free_erp_request(struct dasd_ccw_req *, struct dasd_device *);
void dasd_log_sense(struct dasd_ccw_req *, struct irb *);
+void dasd_log_sense_dbf(struct dasd_ccw_req *cqr, struct irb *irb);
/* externals in dasd_3990_erp.c */
struct dasd_ccw_req *dasd_3990_erp_action(struct dasd_ccw_req *);
*
* i/o controls for the dasd driver.
*/
+
+#define KMSG_COMPONENT "dasd"
+
#include <linux/interrupt.h>
#include <linux/major.h>
#include <linux/fs.h>
if (!capable (CAP_SYS_ADMIN))
return -EACCES;
- DEV_MESSAGE(KERN_DEBUG, base, "%s", "Quiesce IO on device");
+ dev_info(&base->cdev->dev, "The DASD has been put in the quiesce "
+ "state\n");
spin_lock_irqsave(get_ccwdev_lock(base->cdev), flags);
base->stopped |= DASD_STOPPED_QUIESCE;
spin_unlock_irqrestore(get_ccwdev_lock(base->cdev), flags);
/*
- * Quiesce device.
+ * Resume device.
*/
static int dasd_ioctl_resume(struct dasd_block *block)
{
if (!capable (CAP_SYS_ADMIN))
return -EACCES;
- DEV_MESSAGE(KERN_DEBUG, base, "%s", "resume IO on device");
+ dev_info(&base->cdev->dev, "I/O operations have been resumed "
+ "on the DASD\n");
spin_lock_irqsave(get_ccwdev_lock(base->cdev), flags);
base->stopped &= ~DASD_STOPPED_QUIESCE;
spin_unlock_irqrestore(get_ccwdev_lock(base->cdev), flags);
return -EPERM;
if (base->state != DASD_STATE_BASIC) {
- DEV_MESSAGE(KERN_WARNING, base, "%s",
- "dasd_format: device is not disabled! ");
+ dev_warn(&base->cdev->dev,
+ "The DASD cannot be formatted while it is enabled\n");
return -EBUSY;
}
DBF_DEV_EVENT(DBF_NOTICE, base,
- "formatting units %d to %d (%d B blocks) flags %d",
+ "formatting units %u to %u (%u B blocks) flags %u",
fdata->start_unit,
fdata->stop_unit, fdata->blksize, fdata->intensity);
dasd_sfree_request(cqr, cqr->memdev);
if (rc) {
if (rc != -ERESTARTSYS)
- DEV_MESSAGE(KERN_ERR, base,
- " Formatting of unit %d failed "
- "with rc = %d",
- fdata->start_unit, rc);
+ dev_err(&base->cdev->dev,
+ "Formatting unit %d failed with "
+ "rc=%d\n", fdata->start_unit, rc);
return rc;
}
fdata->start_unit++;
if (copy_from_user(&fdata, argp, sizeof(struct format_data_t)))
return -EFAULT;
if (bdev != bdev->bd_contains) {
- DEV_MESSAGE(KERN_WARNING, block->base, "%s",
- "Cannot low-level format a partition");
+ dev_warn(&block->base->cdev->dev,
+ "The specified DASD is a partition and cannot be "
+ "formatted\n");
return -EINVAL;
}
return dasd_format(block, &fdata);
return ret;
}
-int
-dasd_ioctl(struct block_device *bdev, fmode_t mode,
- unsigned int cmd, unsigned long arg)
+static int
+dasd_do_ioctl(struct block_device *bdev, fmode_t mode,
+ unsigned int cmd, unsigned long arg)
{
struct dasd_block *block = bdev->bd_disk->private_data;
void __user *argp = (void __user *)arg;
return -EINVAL;
}
}
+
+int dasd_ioctl(struct block_device *bdev, fmode_t mode,
+ unsigned int cmd, unsigned long arg)
+{
+ int rc;
+
+ lock_kernel();
+ rc = dasd_do_ioctl(bdev, mode, cmd, arg);
+ unlock_kernel();
+ return rc;
+}
*
*/
+#define KMSG_COMPONENT "dasd"
+
#include <linux/ctype.h>
#include <linux/seq_file.h>
#include <linux/vmalloc.h>
seq_printf(m, "n/f ");
else
seq_printf(m,
- "at blocksize: %d, %ld blocks, %ld MB",
+ "at blocksize: %d, %lld blocks, %lld MB",
block->bp_block, block->blocks,
((block->bp_block >> 9) *
block->blocks) >> 11);
buffer = dasd_get_user_string(user_buf, user_len);
if (IS_ERR(buffer))
return PTR_ERR(buffer);
- MESSAGE_LOG(KERN_INFO, "/proc/dasd/statictics: '%s'", buffer);
+ DBF_EVENT(DBF_DEBUG, "/proc/dasd/statictics: '%s'\n", buffer);
/* check for valid verbs */
for (str = buffer; isspace(*str); str++);
if (strcmp(str, "on") == 0) {
/* switch on statistics profiling */
dasd_profile_level = DASD_PROFILE_ON;
- MESSAGE(KERN_INFO, "%s", "Statistics switched on");
+ pr_info("The statistics feature has been switched "
+ "on\n");
} else if (strcmp(str, "off") == 0) {
/* switch off and reset statistics profiling */
memset(&dasd_global_profile,
0, sizeof (struct dasd_profile_info_t));
dasd_profile_level = DASD_PROFILE_OFF;
- MESSAGE(KERN_INFO, "%s", "Statistics switched off");
+ pr_info("The statistics feature has been switched "
+ "off\n");
} else
goto out_error;
} else if (strncmp(str, "reset", 5) == 0) {
/* reset the statistics */
memset(&dasd_global_profile, 0,
sizeof (struct dasd_profile_info_t));
- MESSAGE(KERN_INFO, "%s", "Statistics reset");
+ pr_info("The statistics have been reset\n");
} else
goto out_error;
kfree(buffer);
return user_len;
out_error:
- MESSAGE(KERN_WARNING, "%s",
- "/proc/dasd/statistics: only 'set on', 'set off' "
- "and 'reset' are supported verbs");
+ pr_warning("%s is not a supported value for /proc/dasd/statistics\n",
+ str);
kfree(buffer);
return -EINVAL;
#else
- MESSAGE(KERN_WARNING, "%s",
- "/proc/dasd/statistics: is not activated in this kernel");
+ pr_warning("/proc/dasd/statistics: is not activated in this kernel\n");
return user_len;
#endif /* CONFIG_DASD_PROFILE */
}
#endif
/* a function for dumping device sense info */
-extern void tape_dump_sense(struct tape_device *, struct tape_request *,
- struct irb *);
extern void tape_dump_sense_dbf(struct tape_device *, struct tape_request *,
struct irb *);
* Martin Schwidefsky <schwidefsky@de.ibm.com>
*/
+#define KMSG_COMPONENT "tape"
+
#include <linux/module.h>
#include <linux/init.h>
#include <linux/bio.h>
#include "tape.h"
#include "tape_std.h"
-#define PRINTK_HEADER "TAPE_34XX: "
-
/*
* Pointer to debug area.
*/
tape_34xx_schedule_work(device, TO_MSEN);
} else {
DBF_EVENT(3, "unsol.irq! dev end: %08x\n", device->cdev_id);
- PRINT_WARN("Unsolicited IRQ (Device End) caught.\n");
- tape_dump_sense(device, NULL, irb);
+ tape_dump_sense_dbf(device, NULL, irb);
}
return TAPE_IO_SUCCESS;
}
tape_std_read_backward(device, request);
return tape_34xx_erp_retry(request);
}
- if (request->op != TO_RBA)
- PRINT_ERR("read_opposite called with state:%s\n",
- tape_op_verbose[request->op]);
+
/*
* We tried to read forward and backward, but hat no
* success -> failed.
struct irb *irb, int no)
{
if (request->op != TO_ASSIGN) {
- PRINT_WARN("An unexpected condition #%d was caught in "
- "tape error recovery.\n", no);
- PRINT_WARN("Please report this incident.\n");
- if (request)
- PRINT_WARN("Operation of tape:%s\n",
- tape_op_verbose[request->op]);
- tape_dump_sense(device, request, irb);
+ dev_err(&device->cdev->dev, "An unexpected condition %d "
+ "occurred in tape error recovery\n", no);
+ tape_dump_sense_dbf(device, request, irb);
}
return tape_34xx_erp_failed(request, -EIO);
}
struct irb *irb)
{
if (irb->ecw[3] == 0x40) {
- PRINT_WARN ("Data overrun error between control-unit "
- "and drive. Use a faster channel connection, "
- "if possible! \n");
+ dev_warn (&device->cdev->dev, "A data overrun occurred between"
+ " the control unit and tape unit\n");
return tape_34xx_erp_failed(request, -EIO);
}
return tape_34xx_erp_bug(device, request, irb, -1);
/*
* cu detected incorrect block-id sequence on tape.
*/
- PRINT_WARN("Illegal block-id sequence found!\n");
+ dev_warn (&device->cdev->dev, "The block ID sequence on the "
+ "tape is incorrect\n");
return tape_34xx_erp_failed(request, -EIO);
}
/*
/* Writing at physical end of volume */
return tape_34xx_erp_failed(request, -ENOSPC);
default:
- PRINT_ERR("Invalid op in %s:%i\n",
- __func__, __LINE__);
return tape_34xx_erp_failed(request, 0);
}
}
irb, -4);
/* data check is permanent, CU recovery has failed */
- PRINT_WARN("Permanent read error\n");
+ dev_warn (&device->cdev->dev, "A read error occurred "
+ "that cannot be recovered\n");
return tape_34xx_erp_failed(request, -EIO);
case 0x25:
// a write data check occurred
irb, -5);
// data check is permanent, cu-recovery has failed
- PRINT_WARN("Permanent write error\n");
+ dev_warn (&device->cdev->dev, "A write error on the "
+ "tape cannot be recovered\n");
return tape_34xx_erp_failed(request, -EIO);
case 0x26:
/* Data Check (read opposite) occurred. */
return tape_34xx_erp_read_opposite(device, request);
case 0x28:
/* ID-Mark at tape start couldn't be written */
- PRINT_WARN("ID-Mark could not be written.\n");
+ dev_warn (&device->cdev->dev, "Writing the ID-mark "
+ "failed\n");
return tape_34xx_erp_failed(request, -EIO);
case 0x31:
/* Tape void. Tried to read beyond end of device. */
- PRINT_WARN("Read beyond end of recorded area.\n");
+ dev_warn (&device->cdev->dev, "Reading the tape beyond"
+ " the end of the recorded area failed\n");
return tape_34xx_erp_failed(request, -ENOSPC);
case 0x41:
/* Record sequence error. */
- PRINT_WARN("Invalid block-id sequence found.\n");
+ dev_warn (&device->cdev->dev, "The tape contains an "
+ "incorrect block ID sequence\n");
return tape_34xx_erp_failed(request, -EIO);
default:
/* all data checks for 3480 should result in one of
switch (sense[3]) {
case 0x00:
/* Unit check with erpa code 0. Report and ignore. */
- PRINT_WARN("Non-error sense was found. "
- "Unit-check will be ignored.\n");
return TAPE_IO_SUCCESS;
case 0x21:
/*
* Data streaming not operational. CU will switch to
* interlock mode. Reissue the command.
*/
- PRINT_WARN("Data streaming not operational. "
- "Switching to interlock-mode.\n");
return tape_34xx_erp_retry(request);
case 0x22:
/*
* error on the lower interface, internal path not usable,
* or error during cartridge load.
*/
- PRINT_WARN("A path equipment check occurred. One of the "
- "following conditions occurred:\n");
- PRINT_WARN("drive adapter error, buffer error on the lower "
- "interface, internal path not usable, error "
- "during cartridge load.\n");
+ dev_warn (&device->cdev->dev, "A path equipment check occurred"
+ " for the tape device\n");
return tape_34xx_erp_failed(request, -EIO);
case 0x24:
/*
* but the hardware isn't capable to do idrc, or a perform
* subsystem func is issued and the CU is not on-line.
*/
- PRINT_WARN ("Function incompatible. Try to switch off idrc\n");
return tape_34xx_erp_failed(request, -EIO);
case 0x2a:
/*
* reading the format id mark or that that format specified
* is not supported by the drive.
*/
- PRINT_WARN("Drive not capable processing the tape format!\n");
+ dev_warn (&device->cdev->dev, "The tape unit cannot process "
+ "the tape format\n");
return tape_34xx_erp_failed(request, -EMEDIUMTYPE);
case 0x30:
/* The medium is write protected. */
- PRINT_WARN("Medium is write protected!\n");
+ dev_warn (&device->cdev->dev, "The tape medium is write-"
+ "protected\n");
return tape_34xx_erp_failed(request, -EACCES);
case 0x32:
// Tension loss. We cannot recover this, it's an I/O error.
- PRINT_WARN("The drive lost tape tension.\n");
+ dev_warn (&device->cdev->dev, "The tape does not have the "
+ "required tape tension\n");
return tape_34xx_erp_failed(request, -EIO);
case 0x33:
/*
* Load Failure. The cartridge was not inserted correctly or
* the tape is not threaded correctly.
*/
- PRINT_WARN("Cartridge load failure. Reload the cartridge "
- "and try again.\n");
+ dev_warn (&device->cdev->dev, "The tape unit failed to load"
+ " the cartridge\n");
tape_34xx_delete_sbid_from(device, 0);
return tape_34xx_erp_failed(request, -EIO);
case 0x34:
* Unload failure. The drive cannot maintain tape tension
* and control tape movement during an unload operation.
*/
- PRINT_WARN("Failure during cartridge unload. "
- "Please try manually.\n");
+ dev_warn (&device->cdev->dev, "Automatic unloading of the tape"
+ " cartridge failed\n");
if (request->op == TO_RUN)
return tape_34xx_erp_failed(request, -EIO);
return tape_34xx_erp_bug(device, request, irb, sense[3]);
* - the cartridge loader does not respond correctly
* - a failure occurs during an index, load, or unload cycle
*/
- PRINT_WARN("Equipment check! Please check the drive and "
- "the cartridge loader.\n");
+ dev_warn (&device->cdev->dev, "An equipment check has occurred"
+ " on the tape unit\n");
return tape_34xx_erp_failed(request, -EIO);
case 0x36:
if (device->cdev->id.driver_info == tape_3490)
* Tape length error. The tape is shorter than reported in
* the beginning-of-tape data.
*/
- PRINT_WARN("Tape length error.\n");
+ dev_warn (&device->cdev->dev, "The tape information states an"
+ " incorrect length\n");
return tape_34xx_erp_failed(request, -EIO);
case 0x38:
/*
return tape_34xx_erp_failed(request, -EIO);
case 0x3a:
/* Drive switched to not ready. */
- PRINT_WARN("Drive not ready. Turn the ready/not ready switch "
- "to ready position and try again.\n");
+ dev_warn (&device->cdev->dev, "The tape unit is not ready\n");
return tape_34xx_erp_failed(request, -EIO);
case 0x3b:
/* Manual rewind or unload. This causes an I/O error. */
- PRINT_WARN("Medium was rewound or unloaded manually.\n");
+ dev_warn (&device->cdev->dev, "The tape medium has been "
+ "rewound or unloaded manually\n");
tape_34xx_delete_sbid_from(device, 0);
return tape_34xx_erp_failed(request, -EIO);
case 0x42:
* Degraded mode. A condition that can cause degraded
* performance is detected.
*/
- PRINT_WARN("Subsystem is running in degraded mode.\n");
+ dev_warn (&device->cdev->dev, "The tape subsystem is running "
+ "in degraded mode\n");
return tape_34xx_erp_retry(request);
case 0x43:
/* Drive not ready. */
break;
}
}
- PRINT_WARN("The drive is not ready.\n");
return tape_34xx_erp_failed(request, -ENOMEDIUM);
case 0x44:
/* Locate Block unsuccessful. */
return tape_34xx_erp_failed(request, -EIO);
case 0x45:
/* The drive is assigned to a different channel path. */
- PRINT_WARN("The drive is assigned elsewhere.\n");
+ dev_warn (&device->cdev->dev, "The tape unit is already "
+ "assigned\n");
return tape_34xx_erp_failed(request, -EIO);
case 0x46:
/*
* the power supply may be switched off or
* the drive address may not be set correctly.
*/
- PRINT_WARN("The drive is not on-line.");
+ dev_warn (&device->cdev->dev, "The tape unit is not online\n");
return tape_34xx_erp_failed(request, -EIO);
case 0x47:
/* Volume fenced. CU reports volume integrity is lost. */
- PRINT_WARN("Volume fenced. The volume integrity is lost.\n");
+ dev_warn (&device->cdev->dev, "The control unit has fenced "
+ "access to the tape volume\n");
tape_34xx_delete_sbid_from(device, 0);
return tape_34xx_erp_failed(request, -EIO);
case 0x48:
return tape_34xx_erp_retry(request);
case 0x49:
/* Bus out check. A parity check error on the bus was found. */
- PRINT_WARN("Bus out check. A data transfer over the bus "
- "has been corrupted.\n");
+ dev_warn (&device->cdev->dev, "A parity error occurred on the "
+ "tape bus\n");
return tape_34xx_erp_failed(request, -EIO);
case 0x4a:
/* Control unit erp failed. */
- PRINT_WARN("The control unit I/O error recovery failed.\n");
+ dev_warn (&device->cdev->dev, "I/O error recovery failed on "
+ "the tape control unit\n");
return tape_34xx_erp_failed(request, -EIO);
case 0x4b:
/*
* CU and drive incompatible. The drive requests micro-program
* patches, which are not available on the CU.
*/
- PRINT_WARN("The drive needs microprogram patches from the "
- "control unit, which are not available.\n");
+ dev_warn (&device->cdev->dev, "The tape unit requires a "
+ "firmware update\n");
return tape_34xx_erp_failed(request, -EIO);
case 0x4c:
/*
* the block to be written is larger than allowed for
* buffered mode.
*/
- PRINT_WARN("Maximum block size for buffered "
- "mode exceeded.\n");
+ dev_warn (&device->cdev->dev, "The maximum block size"
+ " for buffered mode is exceeded\n");
return tape_34xx_erp_failed(request, -ENOBUFS);
}
/* This erpa is reserved for 3480. */
return tape_34xx_erp_retry(request);
case 0x55:
/* Channel interface recovery (permanent). */
- PRINT_WARN("A permanent channel interface error occurred.\n");
+ dev_warn (&device->cdev->dev, "A channel interface error cannot be"
+ " recovered\n");
return tape_34xx_erp_failed(request, -EIO);
case 0x56:
/* Channel protocol error. */
- PRINT_WARN("A channel protocol error occurred.\n");
+ dev_warn (&device->cdev->dev, "A channel protocol error "
+ "occurred\n");
return tape_34xx_erp_failed(request, -EIO);
case 0x57:
if (device->cdev->id.driver_info == tape_3480) {
/* Attention intercept. */
- PRINT_WARN("An attention intercept occurred, "
- "which will be recovered.\n");
return tape_34xx_erp_retry(request);
} else {
/* Global status intercept. */
- PRINT_WARN("An global status intercept was received, "
- "which will be recovered.\n");
return tape_34xx_erp_retry(request);
}
case 0x5a:
* Tape length incompatible. The tape inserted is too long,
* which could cause damage to the tape or the drive.
*/
- PRINT_WARN("Tape Length Incompatible\n");
- PRINT_WARN("Tape length exceeds IBM enhanced capacity "
- "cartdridge length or a medium\n");
- PRINT_WARN("with EC-CST identification mark has been mounted "
- "in a device that writes\n");
- PRINT_WARN("3480 or 3480 XF format.\n");
+ dev_warn (&device->cdev->dev, "The tape unit does not support "
+ "the tape length\n");
return tape_34xx_erp_failed(request, -EIO);
case 0x5b:
/* Format 3480 XF incompatible */
if (sense[1] & SENSE_BEGINNING_OF_TAPE)
/* The tape will get overwritten. */
return tape_34xx_erp_retry(request);
- PRINT_WARN("Format 3480 XF Incompatible\n");
- PRINT_WARN("Medium has been created in 3480 format. "
- "To change the format writes\n");
- PRINT_WARN("must be issued at BOT.\n");
+ dev_warn (&device->cdev->dev, "The tape unit does not support"
+ " format 3480 XF\n");
return tape_34xx_erp_failed(request, -EIO);
case 0x5c:
/* Format 3480-2 XF incompatible */
- PRINT_WARN("Format 3480-2 XF Incompatible\n");
- PRINT_WARN("Device can only read 3480 or 3480 XF format.\n");
+ dev_warn (&device->cdev->dev, "The tape unit does not support tape "
+ "format 3480-2 XF\n");
return tape_34xx_erp_failed(request, -EIO);
case 0x5d:
/* Tape length violation. */
- PRINT_WARN("Tape Length Violation\n");
- PRINT_WARN("The mounted tape exceeds IBM Enhanced Capacity "
- "Cartdridge System Tape length.\n");
- PRINT_WARN("This may cause damage to the drive or tape when "
- "processing to the EOV\n");
+ dev_warn (&device->cdev->dev, "The tape unit does not support"
+ " the current tape length\n");
return tape_34xx_erp_failed(request, -EMEDIUMTYPE);
case 0x5e:
/* Compaction algorithm incompatible. */
- PRINT_WARN("Compaction Algorithm Incompatible\n");
- PRINT_WARN("The volume is recorded using an incompatible "
- "compaction algorithm,\n");
- PRINT_WARN("which is not supported by the device.\n");
+ dev_warn (&device->cdev->dev, "The tape unit does not support"
+ " the compaction algorithm\n");
return tape_34xx_erp_failed(request, -EMEDIUMTYPE);
/* The following erpas should have been covered earlier. */
(irb->scsw.cmd.dstat & DEV_STAT_DEV_END) &&
(request->op == TO_WRI)) {
/* Write at end of volume */
- PRINT_INFO("End of volume\n"); /* XXX */
return tape_34xx_erp_failed(request, -ENOSPC);
}
}
DBF_EVENT(6, "xunknownirq\n");
- PRINT_ERR("Unexpected interrupt.\n");
- PRINT_ERR("Current op is: %s", tape_op_verbose[request->op]);
- tape_dump_sense(device, request, irb);
+ tape_dump_sense_dbf(device, request, irb);
return TAPE_IO_STOP;
}
* Martin Schwidefsky <schwidefsky@de.ibm.com>
*/
+#define KMSG_COMPONENT "tape"
+
#include <linux/module.h>
#include <linux/init.h>
#include <linux/bio.h>
#include <asm/ebcdic.h>
#define TAPE_DBF_AREA tape_3590_dbf
+#define BUFSIZE 512 /* size of buffers for dynamic generated messages */
#include "tape.h"
#include "tape_std.h"
* - Read Alternate: implemented
*******************************************************************/
-#define PRINTK_HEADER "TAPE_3590: "
+#define KMSG_COMPONENT "tape"
static const char *tape_3590_msg[TAPE_3590_MAX_MSG] = {
[0x00] = "",
ccw++;
dst += TAPEBLOCK_HSEC_SIZE;
}
- if (off > bv->bv_len)
- BUG();
+ BUG_ON(off > bv->bv_len);
}
ccw = tape_ccw_end(ccw, NOP, 0, NULL);
DBF_EVENT(6, "xBREDccwg\n");
}
c_info->medium_status |= TAPE390_MEDIUM_LOADED_MASK;
if (sense->flags & MSENSE_CRYPT_MASK) {
- PRINT_INFO("Medium is encrypted (%04x)\n", sense->flags);
+ DBF_EVENT(6, "Medium is encrypted (%04x)\n", sense->flags);
c_info->medium_status |= TAPE390_MEDIUM_ENCRYPTED_MASK;
} else {
DBF_EVENT(6, "Medium is not encrypted %04x\n", sense->flags);
tape_3590_schedule_work(device, TO_READ_ATTMSG);
} else {
DBF_EVENT(3, "unsol.irq! dev end: %08x\n", device->cdev_id);
- PRINT_WARN("Unsolicited IRQ (Device End) caught.\n");
- tape_dump_sense(device, NULL, irb);
+ tape_dump_sense_dbf(device, NULL, irb);
}
/* check medium state */
tape_3590_schedule_work(device, TO_MSEN);
case SENSE_BRA_DRE:
return tape_3590_erp_failed(device, request, irb, rc);
default:
- PRINT_ERR("Unknown BRA %x - This should not happen!\n",
- sense->bra);
BUG();
return TAPE_IO_STOP;
}
* should proceed with the new tape... this
* should probably be done in user space!
*/
- PRINT_WARN("(%s): Swap Tape Device!\n", dev_name(&device->cdev->dev));
+ dev_warn (&device->cdev->dev, "The tape medium must be loaded into a "
+ "different tape unit\n");
return tape_3590_erp_basic(device, request, irb, -EIO);
}
return tape_3590_erp_failed(device, request, irb, -EIO);
break;
default:
- PRINT_WARN("read_opposite_recovery_called_with_op: %s\n",
- tape_op_verbose[request->op]);
return tape_3590_erp_failed(device, request, irb, -EIO);
}
}
tape_3590_print_mim_msg_f0(struct tape_device *device, struct irb *irb)
{
struct tape_3590_sense *sense;
+ char *exception, *service;
+
+ exception = kmalloc(BUFSIZE, GFP_ATOMIC);
+ service = kmalloc(BUFSIZE, GFP_ATOMIC);
+
+ if (!exception || !service)
+ goto out_nomem;
sense = (struct tape_3590_sense *) irb->ecw;
/* Exception Message */
switch (sense->fmt.f70.emc) {
case 0x02:
- PRINT_WARN("(%s): Data degraded\n",
- dev_name(&device->cdev->dev));
+ snprintf(exception, BUFSIZE, "Data degraded");
break;
case 0x03:
- PRINT_WARN("(%s): Data degraded in partion %i\n",
- dev_name(&device->cdev->dev), sense->fmt.f70.mp);
+ snprintf(exception, BUFSIZE, "Data degraded in partion %i",
+ sense->fmt.f70.mp);
break;
case 0x04:
- PRINT_WARN("(%s): Medium degraded\n",
- dev_name(&device->cdev->dev));
+ snprintf(exception, BUFSIZE, "Medium degraded");
break;
case 0x05:
- PRINT_WARN("(%s): Medium degraded in partition %i\n",
- dev_name(&device->cdev->dev), sense->fmt.f70.mp);
+ snprintf(exception, BUFSIZE, "Medium degraded in partition %i",
+ sense->fmt.f70.mp);
break;
case 0x06:
- PRINT_WARN("(%s): Block 0 Error\n",
- dev_name(&device->cdev->dev));
+ snprintf(exception, BUFSIZE, "Block 0 Error");
break;
case 0x07:
- PRINT_WARN("(%s): Medium Exception 0x%02x\n",
- dev_name(&device->cdev->dev), sense->fmt.f70.md);
+ snprintf(exception, BUFSIZE, "Medium Exception 0x%02x",
+ sense->fmt.f70.md);
break;
default:
- PRINT_WARN("(%s): MIM ExMsg: 0x%02x\n",
- dev_name(&device->cdev->dev), sense->fmt.f70.emc);
+ snprintf(exception, BUFSIZE, "0x%02x",
+ sense->fmt.f70.emc);
break;
}
/* Service Message */
switch (sense->fmt.f70.smc) {
case 0x02:
- PRINT_WARN("(%s): Reference Media maintenance procedure %i\n",
- dev_name(&device->cdev->dev), sense->fmt.f70.md);
+ snprintf(service, BUFSIZE, "Reference Media maintenance "
+ "procedure %i", sense->fmt.f70.md);
break;
default:
- PRINT_WARN("(%s): MIM ServiceMsg: 0x%02x\n",
- dev_name(&device->cdev->dev), sense->fmt.f70.smc);
+ snprintf(service, BUFSIZE, "0x%02x",
+ sense->fmt.f70.smc);
break;
}
+
+ dev_warn (&device->cdev->dev, "Tape media information: exception %s, "
+ "service %s\n", exception, service);
+
+out_nomem:
+ kfree(exception);
+ kfree(service);
}
/*
tape_3590_print_io_sim_msg_f1(struct tape_device *device, struct irb *irb)
{
struct tape_3590_sense *sense;
+ char *exception, *service;
+
+ exception = kmalloc(BUFSIZE, GFP_ATOMIC);
+ service = kmalloc(BUFSIZE, GFP_ATOMIC);
+
+ if (!exception || !service)
+ goto out_nomem;
sense = (struct tape_3590_sense *) irb->ecw;
/* Exception Message */
switch (sense->fmt.f71.emc) {
case 0x01:
- PRINT_WARN("(%s): Effect of failure is unknown\n",
- dev_name(&device->cdev->dev));
+ snprintf(exception, BUFSIZE, "Effect of failure is unknown");
break;
case 0x02:
- PRINT_WARN("(%s): CU Exception - no performance impact\n",
- dev_name(&device->cdev->dev));
+ snprintf(exception, BUFSIZE, "CU Exception - no performance "
+ "impact");
break;
case 0x03:
- PRINT_WARN("(%s): CU Exception on channel interface 0x%02x\n",
- dev_name(&device->cdev->dev), sense->fmt.f71.md[0]);
+ snprintf(exception, BUFSIZE, "CU Exception on channel "
+ "interface 0x%02x", sense->fmt.f71.md[0]);
break;
case 0x04:
- PRINT_WARN("(%s): CU Exception on device path 0x%02x\n",
- dev_name(&device->cdev->dev), sense->fmt.f71.md[0]);
+ snprintf(exception, BUFSIZE, "CU Exception on device path "
+ "0x%02x", sense->fmt.f71.md[0]);
break;
case 0x05:
- PRINT_WARN("(%s): CU Exception on library path 0x%02x\n",
- dev_name(&device->cdev->dev), sense->fmt.f71.md[0]);
+ snprintf(exception, BUFSIZE, "CU Exception on library path "
+ "0x%02x", sense->fmt.f71.md[0]);
break;
case 0x06:
- PRINT_WARN("(%s): CU Exception on node 0x%02x\n",
- dev_name(&device->cdev->dev), sense->fmt.f71.md[0]);
+ snprintf(exception, BUFSIZE, "CU Exception on node 0x%02x",
+ sense->fmt.f71.md[0]);
break;
case 0x07:
- PRINT_WARN("(%s): CU Exception on partition 0x%02x\n",
- dev_name(&device->cdev->dev), sense->fmt.f71.md[0]);
+ snprintf(exception, BUFSIZE, "CU Exception on partition "
+ "0x%02x", sense->fmt.f71.md[0]);
break;
default:
- PRINT_WARN("(%s): SIM ExMsg: 0x%02x\n",
- dev_name(&device->cdev->dev), sense->fmt.f71.emc);
+ snprintf(exception, BUFSIZE, "0x%02x",
+ sense->fmt.f71.emc);
}
/* Service Message */
switch (sense->fmt.f71.smc) {
case 0x01:
- PRINT_WARN("(%s): Repair impact is unknown\n",
- dev_name(&device->cdev->dev));
+ snprintf(service, BUFSIZE, "Repair impact is unknown");
break;
case 0x02:
- PRINT_WARN("(%s): Repair will not impact cu performance\n",
- dev_name(&device->cdev->dev));
+ snprintf(service, BUFSIZE, "Repair will not impact cu "
+ "performance");
break;
case 0x03:
if (sense->fmt.f71.mdf == 0)
- PRINT_WARN("(%s): Repair will disable node "
- "0x%x on CU\n",
- dev_name(&device->cdev->dev),
- sense->fmt.f71.md[1]);
+ snprintf(service, BUFSIZE, "Repair will disable node "
+ "0x%x on CU", sense->fmt.f71.md[1]);
else
- PRINT_WARN("(%s): Repair will disable nodes "
- "(0x%x-0x%x) on CU\n",
- dev_name(&device->cdev->dev),
- sense->fmt.f71.md[1], sense->fmt.f71.md[2]);
+ snprintf(service, BUFSIZE, "Repair will disable "
+ "nodes (0x%x-0x%x) on CU", sense->fmt.f71.md[1],
+ sense->fmt.f71.md[2]);
break;
case 0x04:
if (sense->fmt.f71.mdf == 0)
- PRINT_WARN("(%s): Repair will disable cannel path "
- "0x%x on CU\n",
- dev_name(&device->cdev->dev),
- sense->fmt.f71.md[1]);
+ snprintf(service, BUFSIZE, "Repair will disable "
+ "channel path 0x%x on CU",
+ sense->fmt.f71.md[1]);
else
- PRINT_WARN("(%s): Repair will disable cannel paths "
- "(0x%x-0x%x) on CU\n",
- dev_name(&device->cdev->dev),
- sense->fmt.f71.md[1], sense->fmt.f71.md[2]);
+ snprintf(service, BUFSIZE, "Repair will disable cannel"
+ " paths (0x%x-0x%x) on CU",
+ sense->fmt.f71.md[1], sense->fmt.f71.md[2]);
break;
case 0x05:
if (sense->fmt.f71.mdf == 0)
- PRINT_WARN("(%s): Repair will disable device path "
- "0x%x on CU\n",
- dev_name(&device->cdev->dev),
- sense->fmt.f71.md[1]);
+ snprintf(service, BUFSIZE, "Repair will disable device"
+ " path 0x%x on CU", sense->fmt.f71.md[1]);
else
- PRINT_WARN("(%s): Repair will disable device paths "
- "(0x%x-0x%x) on CU\n",
- dev_name(&device->cdev->dev),
- sense->fmt.f71.md[1], sense->fmt.f71.md[2]);
+ snprintf(service, BUFSIZE, "Repair will disable device"
+ " paths (0x%x-0x%x) on CU",
+ sense->fmt.f71.md[1], sense->fmt.f71.md[2]);
break;
case 0x06:
if (sense->fmt.f71.mdf == 0)
- PRINT_WARN("(%s): Repair will disable library path "
- "0x%x on CU\n",
- dev_name(&device->cdev->dev),
- sense->fmt.f71.md[1]);
+ snprintf(service, BUFSIZE, "Repair will disable "
+ "library path 0x%x on CU",
+ sense->fmt.f71.md[1]);
else
- PRINT_WARN("(%s): Repair will disable library paths "
- "(0x%x-0x%x) on CU\n",
- dev_name(&device->cdev->dev),
- sense->fmt.f71.md[1], sense->fmt.f71.md[2]);
+ snprintf(service, BUFSIZE, "Repair will disable "
+ "library paths (0x%x-0x%x) on CU",
+ sense->fmt.f71.md[1], sense->fmt.f71.md[2]);
break;
case 0x07:
- PRINT_WARN("(%s): Repair will disable access to CU\n",
- dev_name(&device->cdev->dev));
+ snprintf(service, BUFSIZE, "Repair will disable access to CU");
break;
default:
- PRINT_WARN("(%s): SIM ServiceMsg: 0x%02x\n",
- dev_name(&device->cdev->dev), sense->fmt.f71.smc);
+ snprintf(service, BUFSIZE, "0x%02x",
+ sense->fmt.f71.smc);
}
+
+ dev_warn (&device->cdev->dev, "I/O subsystem information: exception"
+ " %s, service %s\n", exception, service);
+out_nomem:
+ kfree(exception);
+ kfree(service);
}
/*
tape_3590_print_dev_sim_msg_f2(struct tape_device *device, struct irb *irb)
{
struct tape_3590_sense *sense;
+ char *exception, *service;
+
+ exception = kmalloc(BUFSIZE, GFP_ATOMIC);
+ service = kmalloc(BUFSIZE, GFP_ATOMIC);
+
+ if (!exception || !service)
+ goto out_nomem;
sense = (struct tape_3590_sense *) irb->ecw;
/* Exception Message */
switch (sense->fmt.f71.emc) {
case 0x01:
- PRINT_WARN("(%s): Effect of failure is unknown\n",
- dev_name(&device->cdev->dev));
+ snprintf(exception, BUFSIZE, "Effect of failure is unknown");
break;
case 0x02:
- PRINT_WARN("(%s): DV Exception - no performance impact\n",
- dev_name(&device->cdev->dev));
+ snprintf(exception, BUFSIZE, "DV Exception - no performance"
+ " impact");
break;
case 0x03:
- PRINT_WARN("(%s): DV Exception on channel interface 0x%02x\n",
- dev_name(&device->cdev->dev), sense->fmt.f71.md[0]);
+ snprintf(exception, BUFSIZE, "DV Exception on channel "
+ "interface 0x%02x", sense->fmt.f71.md[0]);
break;
case 0x04:
- PRINT_WARN("(%s): DV Exception on loader 0x%02x\n",
- dev_name(&device->cdev->dev), sense->fmt.f71.md[0]);
+ snprintf(exception, BUFSIZE, "DV Exception on loader 0x%02x",
+ sense->fmt.f71.md[0]);
break;
case 0x05:
- PRINT_WARN("(%s): DV Exception on message display 0x%02x\n",
- dev_name(&device->cdev->dev), sense->fmt.f71.md[0]);
+ snprintf(exception, BUFSIZE, "DV Exception on message display"
+ " 0x%02x", sense->fmt.f71.md[0]);
break;
case 0x06:
- PRINT_WARN("(%s): DV Exception in tape path\n",
- dev_name(&device->cdev->dev));
+ snprintf(exception, BUFSIZE, "DV Exception in tape path");
break;
case 0x07:
- PRINT_WARN("(%s): DV Exception in drive\n",
- dev_name(&device->cdev->dev));
+ snprintf(exception, BUFSIZE, "DV Exception in drive");
break;
default:
- PRINT_WARN("(%s): DSIM ExMsg: 0x%02x\n",
- dev_name(&device->cdev->dev), sense->fmt.f71.emc);
+ snprintf(exception, BUFSIZE, "0x%02x",
+ sense->fmt.f71.emc);
}
/* Service Message */
switch (sense->fmt.f71.smc) {
case 0x01:
- PRINT_WARN("(%s): Repair impact is unknown\n",
- dev_name(&device->cdev->dev));
+ snprintf(service, BUFSIZE, "Repair impact is unknown");
break;
case 0x02:
- PRINT_WARN("(%s): Repair will not impact device performance\n",
- dev_name(&device->cdev->dev));
+ snprintf(service, BUFSIZE, "Repair will not impact device "
+ "performance");
break;
case 0x03:
if (sense->fmt.f71.mdf == 0)
- PRINT_WARN("(%s): Repair will disable channel path "
- "0x%x on DV\n",
- dev_name(&device->cdev->dev),
- sense->fmt.f71.md[1]);
+ snprintf(service, BUFSIZE, "Repair will disable "
+ "channel path 0x%x on DV",
+ sense->fmt.f71.md[1]);
else
- PRINT_WARN("(%s): Repair will disable channel path "
- "(0x%x-0x%x) on DV\n",
- dev_name(&device->cdev->dev),
- sense->fmt.f71.md[1], sense->fmt.f71.md[2]);
+ snprintf(service, BUFSIZE, "Repair will disable "
+ "channel path (0x%x-0x%x) on DV",
+ sense->fmt.f71.md[1], sense->fmt.f71.md[2]);
break;
case 0x04:
if (sense->fmt.f71.mdf == 0)
- PRINT_WARN("(%s): Repair will disable interface 0x%x "
- "on DV\n",
- dev_name(&device->cdev->dev),
- sense->fmt.f71.md[1]);
+ snprintf(service, BUFSIZE, "Repair will disable "
+ "interface 0x%x on DV", sense->fmt.f71.md[1]);
else
- PRINT_WARN("(%s): Repair will disable interfaces "
- "(0x%x-0x%x) on DV\n",
- dev_name(&device->cdev->dev),
- sense->fmt.f71.md[1], sense->fmt.f71.md[2]);
+ snprintf(service, BUFSIZE, "Repair will disable "
+ "interfaces (0x%x-0x%x) on DV",
+ sense->fmt.f71.md[1], sense->fmt.f71.md[2]);
break;
case 0x05:
if (sense->fmt.f71.mdf == 0)
- PRINT_WARN("(%s): Repair will disable loader 0x%x "
- "on DV\n",
- dev_name(&device->cdev->dev),
- sense->fmt.f71.md[1]);
+ snprintf(service, BUFSIZE, "Repair will disable loader"
+ " 0x%x on DV", sense->fmt.f71.md[1]);
else
- PRINT_WARN("(%s): Repair will disable loader "
- "(0x%x-0x%x) on DV\n",
- dev_name(&device->cdev->dev),
- sense->fmt.f71.md[1], sense->fmt.f71.md[2]);
+ snprintf(service, BUFSIZE, "Repair will disable loader"
+ " (0x%x-0x%x) on DV",
+ sense->fmt.f71.md[1], sense->fmt.f71.md[2]);
break;
case 0x07:
- PRINT_WARN("(%s): Repair will disable access to DV\n",
- dev_name(&device->cdev->dev));
+ snprintf(service, BUFSIZE, "Repair will disable access to DV");
break;
case 0x08:
if (sense->fmt.f71.mdf == 0)
- PRINT_WARN("(%s): Repair will disable message "
- "display 0x%x on DV\n",
- dev_name(&device->cdev->dev),
- sense->fmt.f71.md[1]);
+ snprintf(service, BUFSIZE, "Repair will disable "
+ "message display 0x%x on DV",
+ sense->fmt.f71.md[1]);
else
- PRINT_WARN("(%s): Repair will disable message "
- "displays (0x%x-0x%x) on DV\n",
- dev_name(&device->cdev->dev),
- sense->fmt.f71.md[1], sense->fmt.f71.md[2]);
+ snprintf(service, BUFSIZE, "Repair will disable "
+ "message displays (0x%x-0x%x) on DV",
+ sense->fmt.f71.md[1], sense->fmt.f71.md[2]);
break;
case 0x09:
- PRINT_WARN("(%s): Clean DV\n", dev_name(&device->cdev->dev));
+ snprintf(service, BUFSIZE, "Clean DV");
break;
default:
- PRINT_WARN("(%s): DSIM ServiceMsg: 0x%02x\n",
- dev_name(&device->cdev->dev), sense->fmt.f71.smc);
+ snprintf(service, BUFSIZE, "0x%02x",
+ sense->fmt.f71.smc);
}
+
+ dev_warn (&device->cdev->dev, "Device subsystem information: exception"
+ " %s, service %s\n", exception, service);
+out_nomem:
+ kfree(exception);
+ kfree(service);
}
/*
return;
if ((sense->mc > 0) && (sense->mc < TAPE_3590_MAX_MSG)) {
if (tape_3590_msg[sense->mc] != NULL)
- PRINT_WARN("(%s): %s\n", dev_name(&device->cdev->dev),
- tape_3590_msg[sense->mc]);
- else {
- PRINT_WARN("(%s): Message Code 0x%x\n",
- dev_name(&device->cdev->dev), sense->mc);
- }
+ dev_warn (&device->cdev->dev, "The tape unit has "
+ "issued sense message %s\n",
+ tape_3590_msg[sense->mc]);
+ else
+ dev_warn (&device->cdev->dev, "The tape unit has "
+ "issued an unknown sense message code 0x%x\n",
+ sense->mc);
return;
}
if (sense->mc == 0xf0) {
/* Standard Media Information Message */
- PRINT_WARN("(%s): MIM SEV=%i, MC=%02x, ES=%x/%x, "
- "RC=%02x-%04x-%02x\n", dev_name(&device->cdev->dev),
- sense->fmt.f70.sev, sense->mc,
- sense->fmt.f70.emc, sense->fmt.f70.smc,
- sense->fmt.f70.refcode, sense->fmt.f70.mid,
- sense->fmt.f70.fid);
+ dev_warn (&device->cdev->dev, "MIM SEV=%i, MC=%02x, ES=%x/%x, "
+ "RC=%02x-%04x-%02x\n", sense->fmt.f70.sev, sense->mc,
+ sense->fmt.f70.emc, sense->fmt.f70.smc,
+ sense->fmt.f70.refcode, sense->fmt.f70.mid,
+ sense->fmt.f70.fid);
tape_3590_print_mim_msg_f0(device, irb);
return;
}
if (sense->mc == 0xf1) {
/* Standard I/O Subsystem Service Information Message */
- PRINT_WARN("(%s): IOSIM SEV=%i, DEVTYPE=3590/%02x, "
- "MC=%02x, ES=%x/%x, REF=0x%04x-0x%04x-0x%04x\n",
- dev_name(&device->cdev->dev), sense->fmt.f71.sev,
- device->cdev->id.dev_model,
- sense->mc, sense->fmt.f71.emc,
- sense->fmt.f71.smc, sense->fmt.f71.refcode1,
- sense->fmt.f71.refcode2, sense->fmt.f71.refcode3);
+ dev_warn (&device->cdev->dev, "IOSIM SEV=%i, DEVTYPE=3590/%02x,"
+ " MC=%02x, ES=%x/%x, REF=0x%04x-0x%04x-0x%04x\n",
+ sense->fmt.f71.sev, device->cdev->id.dev_model,
+ sense->mc, sense->fmt.f71.emc, sense->fmt.f71.smc,
+ sense->fmt.f71.refcode1, sense->fmt.f71.refcode2,
+ sense->fmt.f71.refcode3);
tape_3590_print_io_sim_msg_f1(device, irb);
return;
}
if (sense->mc == 0xf2) {
/* Standard Device Service Information Message */
- PRINT_WARN("(%s): DEVSIM SEV=%i, DEVTYPE=3590/%02x, "
- "MC=%02x, ES=%x/%x, REF=0x%04x-0x%04x-0x%04x\n",
- dev_name(&device->cdev->dev), sense->fmt.f71.sev,
- device->cdev->id.dev_model,
- sense->mc, sense->fmt.f71.emc,
- sense->fmt.f71.smc, sense->fmt.f71.refcode1,
- sense->fmt.f71.refcode2, sense->fmt.f71.refcode3);
+ dev_warn (&device->cdev->dev, "DEVSIM SEV=%i, DEVTYPE=3590/%02x"
+ ", MC=%02x, ES=%x/%x, REF=0x%04x-0x%04x-0x%04x\n",
+ sense->fmt.f71.sev, device->cdev->id.dev_model,
+ sense->mc, sense->fmt.f71.emc, sense->fmt.f71.smc,
+ sense->fmt.f71.refcode1, sense->fmt.f71.refcode2,
+ sense->fmt.f71.refcode3);
tape_3590_print_dev_sim_msg_f2(device, irb);
return;
}
/* Standard Library Service Information Message */
return;
}
- PRINT_WARN("(%s): Device Message(%x)\n",
- dev_name(&device->cdev->dev), sense->mc);
+ dev_warn (&device->cdev->dev, "The tape unit has issued an unknown "
+ "sense message code %x\n", sense->mc);
}
static int tape_3590_crypt_error(struct tape_device *device,
/* No connection to EKM */
return tape_3590_erp_basic(device, request, irb, -ENOTCONN);
- PRINT_ERR("(%s): Unable to get encryption key from EKM\n", bus_id);
- PRINT_ERR("(%s): CU=%02X DRIVE=%06X EKM=%02X:%04X\n", bus_id, cu_rc,
- drv_rc, ekm_rc1, ekm_rc2);
+ dev_err (&device->cdev->dev, "The tape unit failed to obtain the "
+ "encryption key from EKM\n");
return tape_3590_erp_basic(device, request, irb, -ENOKEY);
}
* print additional msg since default msg
* "device intervention" is not very meaningfull
*/
- PRINT_WARN("(%s): Tape operation when medium not loaded\n",
- dev_name(&device->cdev->dev));
tape_med_state_set(device, MS_UNLOADED);
tape_3590_schedule_work(device, TO_CRYPT_OFF);
return tape_3590_erp_basic(device, request, irb, -ENOMEDIUM);
return tape_3590_erp_basic(device, request, irb, -ENOMEDIUM);
case 0x6020:
- PRINT_WARN("(%s): Cartridge of wrong type ?\n",
- dev_name(&device->cdev->dev));
return tape_3590_erp_basic(device, request, irb, -EMEDIUMTYPE);
case 0x8011:
- PRINT_WARN("(%s): Another host has reserved the tape device\n",
- dev_name(&device->cdev->dev));
return tape_3590_erp_basic(device, request, irb, -EPERM);
case 0x8013:
- PRINT_WARN("(%s): Another host has privileged access to the "
- "tape device\n", dev_name(&device->cdev->dev));
- PRINT_WARN("(%s): To solve the problem unload the current "
- "cartridge!\n", dev_name(&device->cdev->dev));
+ dev_warn (&device->cdev->dev, "A different host has privileged"
+ " access to the tape unit\n");
return tape_3590_erp_basic(device, request, irb, -EPERM);
default:
return tape_3590_erp_basic(device, request, irb, -EIO);
}
DBF_EVENT(6, "xunknownirq\n");
- PRINT_ERR("Unexpected interrupt.\n");
- PRINT_ERR("Current op is: %s", tape_op_verbose[request->op]);
- tape_dump_sense(device, request, irb);
+ tape_dump_sense_dbf(device, request, irb);
return TAPE_IO_STOP;
}
if (rc)
goto fail_rdc_data;
if (rdc_data->data[31] == 0x13) {
- PRINT_INFO("Device has crypto support\n");
data->crypt_info.capability |= TAPE390_CRYPT_SUPPORTED_MASK;
tape_3592_disable_crypt(device);
} else {
* Stefan Bader <shbader@de.ibm.com>
*/
+#define KMSG_COMPONENT "tape"
+
#include <linux/fs.h>
#include <linux/module.h>
#include <linux/blkdev.h>
#include "tape.h"
-#define PRINTK_HEADER "TAPE_BLOCK: "
-
#define TAPEBLOCK_MAX_SEC 100
#define TAPEBLOCK_MIN_REQUEUE 3
tape_put_device(device);
if (!device->blk_data.disk) {
- PRINT_ERR("(%s): No gendisk to clean up!\n",
- dev_name(&device->cdev->dev));
goto cleanup_queue;
}
if (!device->blk_data.medium_changed)
return 0;
- PRINT_INFO("Detecting media size...\n");
+ dev_info(&device->cdev->dev, "Determining the size of the recorded "
+ "area...\n");
rc = tape_mtop(device, MTFSFM, 1);
if (rc)
return rc;
device->bof = rc;
nr_of_blks -= rc;
- PRINT_INFO("Found %i blocks on media\n", nr_of_blks);
+ dev_info(&device->cdev->dev, "The size of the recorded area is %i "
+ "blocks\n", nr_of_blks);
set_capacity(device->blk_data.disk,
nr_of_blks*(TAPEBLOCK_HSEC_SIZE/512));
if (device->required_tapemarks) {
DBF_EVENT(2, "TBLOCK: missing tapemarks\n");
- PRINT_ERR("TBLOCK: Refusing to open tape with missing"
- " end of file marks.\n");
+ dev_warn(&device->cdev->dev, "Opening the tape failed because"
+ " of missing end-of-file marks\n");
rc = -EPERM;
goto put_device;
}
rc = -EINVAL;
break;
default:
- PRINT_WARN("invalid ioctl 0x%x\n", command);
rc = -EINVAL;
}
if (tapeblock_major == 0)
tapeblock_major = rc;
- PRINT_INFO("tape gets major %d for block device\n", tapeblock_major);
return 0;
}
#include "tape_std.h"
#include "tape_class.h"
-#define PRINTK_HEADER "TAPE_CHAR: "
-
#define TAPECHAR_MAJOR 0 /* get dynamic major */
/*
if (block_size > MAX_BLOCKSIZE) {
DBF_EVENT(3, "Invalid blocksize (%zd > %d)\n",
block_size, MAX_BLOCKSIZE);
- PRINT_ERR("Invalid blocksize (%zd> %d)\n",
- block_size, MAX_BLOCKSIZE);
return -EINVAL;
}
return -1;
tapechar_major = MAJOR(dev);
- PRINT_INFO("tape gets major %d for character devices\n", MAJOR(dev));
return 0;
}
void
tapechar_exit(void)
{
- PRINT_INFO("tape releases major %d for character devices\n",
- tapechar_major);
unregister_chrdev_region(MKDEV(tapechar_major, 0), 256);
}
* Stefan Bader <shbader@de.ibm.com>
*/
+#define KMSG_COMPONENT "tape"
#include <linux/module.h>
#include <linux/init.h> // for kernel parameters
#include <linux/kmod.h> // for requesting modules
#include "tape.h"
#include "tape_std.h"
-#define PRINTK_HEADER "TAPE_CORE: "
#define LONG_BUSY_TIMEOUT 180 /* seconds */
static void __tape_do_irq (struct ccw_device *, unsigned long, struct irb *);
switch(newstate){
case MS_UNLOADED:
device->tape_generic_status |= GMT_DR_OPEN(~0);
- PRINT_INFO("(%s): Tape is unloaded\n",
- dev_name(&device->cdev->dev));
+ dev_info(&device->cdev->dev, "The tape cartridge has been "
+ "successfully unloaded\n");
break;
case MS_LOADED:
device->tape_generic_status &= ~GMT_DR_OPEN(~0);
- PRINT_INFO("(%s): Tape has been mounted\n",
- dev_name(&device->cdev->dev));
+ dev_info(&device->cdev->dev, "A tape cartridge has been "
+ "mounted\n");
break;
default:
// print nothing
/* Let the discipline have a go at the device. */
device->discipline = discipline;
if (!try_module_get(discipline->owner)) {
- PRINT_ERR("Cannot get module. Module gone.\n");
return -EINVAL;
}
tape_generic_offline(struct tape_device *device)
{
if (!device) {
- PRINT_ERR("tape_generic_offline: no such device\n");
return -ENODEV;
}
DBF_EVENT(3, "(%08x): Set offline failed "
"- drive in use.\n",
device->cdev_id);
- PRINT_WARN("(%s): Set offline failed "
- "- drive in use.\n",
- dev_name(&device->cdev->dev));
spin_unlock_irq(get_ccwdev_lock(device->cdev));
return -EBUSY;
}
device = kzalloc(sizeof(struct tape_device), GFP_KERNEL);
if (device == NULL) {
DBF_EXCEPTION(2, "ti:no mem\n");
- PRINT_INFO ("can't allocate memory for "
- "tape info structure\n");
return ERR_PTR(-ENOMEM);
}
device->modeset_byte = kmalloc(1, GFP_KERNEL | GFP_DMA);
if (device->modeset_byte == NULL) {
DBF_EXCEPTION(2, "ti:no mem\n");
- PRINT_INFO("can't allocate memory for modeset byte\n");
kfree(device);
return ERR_PTR(-ENOMEM);
}
} else {
if (remain < 0) {
DBF_EVENT(4, "put device without reference\n");
- PRINT_ERR("put device without reference\n");
} else {
DBF_EVENT(4, "tape_free_device(%p)\n", device);
kfree(device->modeset_byte);
ret = sysfs_create_group(&cdev->dev.kobj, &tape_attr_group);
if (ret) {
tape_put_device(device);
- PRINT_ERR("probe failed for tape device %s\n",
- dev_name(&cdev->dev));
return ret;
}
cdev->dev.driver_data = device;
device->cdev = cdev;
ccw_device_get_id(cdev, &dev_id);
device->cdev_id = devid_to_int(&dev_id);
- PRINT_INFO("tape device %s found\n", dev_name(&cdev->dev));
return ret;
}
device = cdev->dev.driver_data;
if (!device) {
- PRINT_ERR("No device pointer in tape_generic_remove!\n");
return;
}
DBF_LH(3, "(%08x): tape_generic_remove(%p)\n", device->cdev_id, cdev);
*/
DBF_EVENT(3, "(%08x): Drive in use vanished!\n",
device->cdev_id);
- PRINT_WARN("(%s): Drive in use vanished - "
- "expect trouble!\n",
- dev_name(&device->cdev->dev));
- PRINT_WARN("State was %i\n", device->tape_state);
+ dev_warn(&device->cdev->dev, "A tape unit was detached"
+ " while in use\n");
tape_state_set(device, TS_NOT_OPER);
__tape_discard_requests(device);
spin_unlock_irq(get_ccwdev_lock(device->cdev));
{
struct tape_request *request;
- if (datasize > PAGE_SIZE || (cplength*sizeof(struct ccw1)) > PAGE_SIZE)
- BUG();
+ BUG_ON(datasize > PAGE_SIZE || (cplength*sizeof(struct ccw1)) > PAGE_SIZE);
DBF_LH(6, "tape_alloc_request(%d, %d)\n", cplength, datasize);
device = (struct tape_device *) data;
spin_lock_irq(get_ccwdev_lock(device->cdev));
request = list_entry(device->req_queue.next, struct tape_request, list);
- if (request->status != TAPE_REQUEST_LONG_BUSY)
- BUG();
+ BUG_ON(request->status != TAPE_REQUEST_LONG_BUSY);
DBF_LH(6, "%08x: Long busy timeout.\n", device->cdev_id);
__tape_start_next_request(device);
device->lb_timeout.data = (unsigned long) tape_put_device(device);
__tape_start_next_request(device);
}
-/*
- * Write sense data to console/dbf
- */
-void
-tape_dump_sense(struct tape_device* device, struct tape_request *request,
- struct irb *irb)
-{
- unsigned int *sptr;
-
- PRINT_INFO("-------------------------------------------------\n");
- PRINT_INFO("DSTAT : %02x CSTAT: %02x CPA: %04x\n",
- irb->scsw.cmd.dstat, irb->scsw.cmd.cstat, irb->scsw.cmd.cpa);
- PRINT_INFO("DEVICE: %s\n", dev_name(&device->cdev->dev));
- if (request != NULL)
- PRINT_INFO("OP : %s\n", tape_op_verbose[request->op]);
-
- sptr = (unsigned int *) irb->ecw;
- PRINT_INFO("Sense data: %08X %08X %08X %08X \n",
- sptr[0], sptr[1], sptr[2], sptr[3]);
- PRINT_INFO("Sense data: %08X %08X %08X %08X \n",
- sptr[4], sptr[5], sptr[6], sptr[7]);
- PRINT_INFO("--------------------------------------------------\n");
-}
-
/*
* Write sense data to dbf
*/
device = (struct tape_device *) cdev->dev.driver_data;
if (device == NULL) {
- PRINT_ERR("could not get device structure for %s "
- "in interrupt\n", dev_name(&cdev->dev));
return;
}
request = (struct tape_request *) intparm;
/* FIXME: What to do with the request? */
switch (PTR_ERR(irb)) {
case -ETIMEDOUT:
- PRINT_WARN("(%s): Request timed out\n",
+ DBF_LH(1, "(%s): Request timed out\n",
dev_name(&cdev->dev));
case -EIO:
__tape_end_request(device, request, -EIO);
break;
default:
- PRINT_ERR("(%s): Unexpected i/o error %li\n",
+ DBF_LH(1, "(%s): Unexpected i/o error %li\n",
dev_name(&cdev->dev),
PTR_ERR(irb));
}
default:
if (rc > 0) {
DBF_EVENT(6, "xunknownrc\n");
- PRINT_ERR("Invalid return code from discipline "
- "interrupt function.\n");
__tape_end_request(device, request, -EIO);
} else {
__tape_end_request(device, request, rc);
EXPORT_SYMBOL(tape_med_state_set);
EXPORT_SYMBOL(tape_alloc_request);
EXPORT_SYMBOL(tape_free_request);
-EXPORT_SYMBOL(tape_dump_sense);
EXPORT_SYMBOL(tape_dump_sense_dbf);
EXPORT_SYMBOL(tape_do_io);
EXPORT_SYMBOL(tape_do_io_async);
#include "tape.h"
-#define PRINTK_HEADER "TAPE_PROC: "
-
static const char *tape_med_st_verbose[MS_SIZE] =
{
[MS_UNKNOWN] = "UNKNOWN ",
proc_create("tapedevices", S_IFREG | S_IRUGO | S_IWUSR, NULL,
&tape_proc_ops);
if (tape_proc_devices == NULL) {
- PRINT_WARN("tape: Cannot register procfs entry tapedevices\n");
return;
}
}
#include "tape.h"
#include "tape_std.h"
-#define PRINTK_HEADER "TAPE_STD: "
-
/*
* tape_std_assign
*/
int rc;
request = (struct tape_request *) data;
- if ((device = request->device) == NULL)
- BUG();
+ device = request->device;
+ BUG_ON(!device);
DBF_EVENT(3, "%08x: Assignment timeout. Device busy.\n",
device->cdev_id);
rc = tape_cancel_io(device, request);
if(rc)
- PRINT_ERR("(%s): Assign timeout: Cancel failed with rc = %i\n",
+ DBF_EVENT(3, "(%s): Assign timeout: Cancel failed with rc = %i\n",
dev_name(&device->cdev->dev), rc);
-
}
int
del_timer(&timeout);
if (rc != 0) {
- PRINT_WARN("%s: assign failed - device might be busy\n",
- dev_name(&device->cdev->dev));
DBF_EVENT(3, "%08x: assign failed - device might be busy\n",
device->cdev_id);
} else {
if (device->tape_state == TS_NOT_OPER) {
DBF_EVENT(3, "(%08x): Can't unassign device\n",
device->cdev_id);
- PRINT_WARN("(%s): Can't unassign device - device gone\n",
- dev_name(&device->cdev->dev));
return -EIO;
}
if ((rc = tape_do_io(device, request)) != 0) {
DBF_EVENT(3, "%08x: Unassign failed\n", device->cdev_id);
- PRINT_WARN("%s: Unassign failed\n",
- dev_name(&device->cdev->dev));
} else {
DBF_EVENT(3, "%08x: Tape unassigned\n", device->cdev_id);
}
if (count > MAX_BLOCKSIZE) {
DBF_EVENT(3, "Invalid block size (%d > %d) given.\n",
count, MAX_BLOCKSIZE);
- PRINT_ERR("Invalid block size (%d > %d) given.\n",
- count, MAX_BLOCKSIZE);
return -EINVAL;
}
if (mt_count < 0 || mt_count > 1) {
DBF_EXCEPTION(6, "xcom parm\n");
- if (*device->modeset_byte & 0x08)
- PRINT_INFO("(%s) Compression is currently on\n",
- dev_name(&device->cdev->dev));
- else
- PRINT_INFO("(%s) Compression is currently off\n",
- dev_name(&device->cdev->dev));
- PRINT_INFO("Use 1 to switch compression on, 0 to "
- "switch it off\n");
return -EINVAL;
}
request = tape_alloc_request(2, 0);
*
* For more information please refer to Documentation/s390/zfcpdump.txt
*
- * Copyright IBM Corp. 2003,2007
+ * Copyright IBM Corp. 2003,2008
* Author(s): Michael Holzheu
*/
#include <asm/debug.h>
#include <asm/processor.h>
#include <asm/irqflags.h>
+#include <asm/checksum.h>
#include "sclp.h"
#define TRACE(x...) debug_sprintf_event(zcore_dbf, 1, x)
union save_area lc_mask;
};
+struct ipib_info {
+ unsigned long ipib;
+ u32 checksum;
+} __attribute__((packed));
+
static struct sys_info sys_info;
static struct debug_info *zcore_dbf;
static int hsa_available;
static struct dentry *zcore_dir;
static struct dentry *zcore_file;
static struct dentry *zcore_memmap_file;
+static struct dentry *zcore_reipl_file;
+static struct ipl_parameter_block *ipl_block;
/*
* Copy memory from HSA to kernel or user memory (not reentrant):
.release = zcore_memmap_release,
};
+static ssize_t zcore_reipl_write(struct file *filp, const char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ if (ipl_block) {
+ diag308(DIAG308_SET, ipl_block);
+ diag308(DIAG308_IPL, NULL);
+ }
+ return count;
+}
+
+static int zcore_reipl_open(struct inode *inode, struct file *filp)
+{
+ return 0;
+}
+
+static int zcore_reipl_release(struct inode *inode, struct file *filp)
+{
+ return 0;
+}
+
+static const struct file_operations zcore_reipl_fops = {
+ .owner = THIS_MODULE,
+ .write = zcore_reipl_write,
+ .open = zcore_reipl_open,
+ .release = zcore_reipl_release,
+};
+
static void __init set_s390_lc_mask(union save_area *map)
{
return 0;
}
+/*
+ * Provide IPL parameter information block from either HSA or memory
+ * for future reipl
+ */
+static int __init zcore_reipl_init(void)
+{
+ struct ipib_info ipib_info;
+ int rc;
+
+ rc = memcpy_hsa_kernel(&ipib_info, __LC_DUMP_REIPL, sizeof(ipib_info));
+ if (rc)
+ return rc;
+ if (ipib_info.ipib == 0)
+ return 0;
+ ipl_block = (void *) __get_free_page(GFP_KERNEL);
+ if (!ipl_block)
+ return -ENOMEM;
+ if (ipib_info.ipib < ZFCPDUMP_HSA_SIZE)
+ rc = memcpy_hsa_kernel(ipl_block, ipib_info.ipib, PAGE_SIZE);
+ else
+ rc = memcpy_real(ipl_block, ipib_info.ipib, PAGE_SIZE);
+ if (rc) {
+ free_page((unsigned long) ipl_block);
+ return rc;
+ }
+ if (csum_partial(ipl_block, ipl_block->hdr.len, 0) !=
+ ipib_info.checksum) {
+ TRACE("Checksum does not match\n");
+ free_page((unsigned long) ipl_block);
+ ipl_block = NULL;
+ }
+ return 0;
+}
+
static int __init zcore_init(void)
{
unsigned char arch;
if (rc)
goto fail;
+ rc = zcore_reipl_init();
+ if (rc)
+ goto fail;
+
zcore_dir = debugfs_create_dir("zcore" , NULL);
if (!zcore_dir) {
rc = -ENOMEM;
rc = -ENOMEM;
goto fail_file;
}
+ zcore_reipl_file = debugfs_create_file("reipl", S_IRUSR, zcore_dir,
+ NULL, &zcore_reipl_fops);
+ if (!zcore_reipl_file) {
+ rc = -ENOMEM;
+ goto fail_memmap_file;
+ }
hsa_available = 1;
return 0;
+fail_memmap_file:
+ debugfs_remove(zcore_memmap_file);
fail_file:
debugfs_remove(zcore_file);
fail_dir:
{
debug_unregister(zcore_dbf);
sclp_sdias_exit();
+ free_page((unsigned long) ipl_block);
+ debugfs_remove(zcore_reipl_file);
+ debugfs_remove(zcore_memmap_file);
+ debugfs_remove(zcore_file);
+ debugfs_remove(zcore_dir);
diag308(DIAG308_REL_HSA, NULL);
}
-MODULE_AUTHOR("Copyright IBM Corp. 2003,2007");
+MODULE_AUTHOR("Copyright IBM Corp. 2003,2008");
MODULE_DESCRIPTION("zcore module for zfcpdump support");
MODULE_LICENSE("GPL");
#
obj-y += airq.o blacklist.o chsc.o cio.o css.o chp.o idset.o isc.o scsw.o \
- fcx.o itcw.o
+ fcx.o itcw.o crw.o
ccw_device-objs += device.o device_fsm.o device_ops.o
ccw_device-objs += device_id.o device_pgid.o device_status.o
obj-y += ccw_device.o cmf.o
void *drv_data;
};
-static union indicator_t indicators[MAX_ISC];
-static struct airq_t *airqs[MAX_ISC][NR_AIRQS];
+static union indicator_t indicators[MAX_ISC+1];
+static struct airq_t *airqs[MAX_ISC+1][NR_AIRQS];
static int register_airq(struct airq_t *airq, u8 isc)
{
while (word) {
if (word & INDICATOR_MASK) {
airq = airqs[isc][i];
+ /* Make sure gcc reads from airqs only once. */
+ barrier();
if (likely(airq))
airq->handler(&indicators[isc].byte[i],
airq->drv_data);
size_t user_len, loff_t *offset)
{
char *buf;
- size_t i;
- ssize_t rc, ret;
+ ssize_t rc, ret, i;
if (*offset)
return -EINVAL;
}
EXPORT_SYMBOL(ccwgroup_create_from_string);
-static int __init
-init_ccwgroup (void)
+static int ccwgroup_notifier(struct notifier_block *nb, unsigned long action,
+ void *data);
+
+static struct notifier_block ccwgroup_nb = {
+ .notifier_call = ccwgroup_notifier
+};
+
+static int __init init_ccwgroup(void)
{
- return bus_register (&ccwgroup_bus_type);
+ int ret;
+
+ ret = bus_register(&ccwgroup_bus_type);
+ if (ret)
+ return ret;
+
+ ret = bus_register_notifier(&ccwgroup_bus_type, &ccwgroup_nb);
+ if (ret)
+ bus_unregister(&ccwgroup_bus_type);
+
+ return ret;
}
-static void __exit
-cleanup_ccwgroup (void)
+static void __exit cleanup_ccwgroup(void)
{
- bus_unregister (&ccwgroup_bus_type);
+ bus_unregister_notifier(&ccwgroup_bus_type, &ccwgroup_nb);
+ bus_unregister(&ccwgroup_bus_type);
}
module_init(init_ccwgroup);
unsigned long value;
int ret;
- gdev = to_ccwgroupdev(dev);
if (!dev->driver)
- return count;
+ return -ENODEV;
+
+ gdev = to_ccwgroupdev(dev);
+ gdrv = to_ccwgroupdrv(dev->driver);
- gdrv = to_ccwgroupdrv (gdev->dev.driver);
if (!try_module_get(gdrv->owner))
return -EINVAL;
ret = strict_strtoul(buf, 0, &value);
if (ret)
goto out;
- ret = count;
+
if (value == 1)
- ccwgroup_set_online(gdev);
+ ret = ccwgroup_set_online(gdev);
else if (value == 0)
- ccwgroup_set_offline(gdev);
+ ret = ccwgroup_set_offline(gdev);
else
ret = -EINVAL;
out:
module_put(gdrv->owner);
- return ret;
+ return (ret == 0) ? count : ret;
}
static ssize_t
struct ccwgroup_device *gdev;
struct ccwgroup_driver *gdrv;
+ device_remove_file(dev, &dev_attr_online);
+ device_remove_file(dev, &dev_attr_ungroup);
+
+ if (!dev->driver)
+ return 0;
+
gdev = to_ccwgroupdev(dev);
gdrv = to_ccwgroupdrv(dev->driver);
- device_remove_file(dev, &dev_attr_online);
-
- if (gdrv && gdrv->remove)
+ if (gdrv->remove)
gdrv->remove(gdev);
+
return 0;
}
struct ccwgroup_device *gdev;
struct ccwgroup_driver *gdrv;
+ if (!dev->driver)
+ return;
+
gdev = to_ccwgroupdev(dev);
gdrv = to_ccwgroupdrv(dev->driver);
- if (gdrv && gdrv->shutdown)
+
+ if (gdrv->shutdown)
gdrv->shutdown(gdev);
}
.shutdown = ccwgroup_shutdown,
};
+
+static int ccwgroup_notifier(struct notifier_block *nb, unsigned long action,
+ void *data)
+{
+ struct device *dev = data;
+
+ if (action == BUS_NOTIFY_UNBIND_DRIVER)
+ device_schedule_callback(dev, ccwgroup_ungroup_callback);
+
+ return NOTIFY_OK;
+}
+
+
/**
* ccwgroup_driver_register() - register a ccw group driver
* @cdriver: driver to be registered
#include <linux/errno.h>
#include <asm/chpid.h>
#include <asm/sclp.h>
+#include <asm/crw.h>
-#include "../s390mach.h"
#include "cio.h"
#include "css.h"
#include "ioasm.h"
struct chp_id chpid;
int ret;
- ret = s390_register_crw_handler(CRW_RSC_CPATH, chp_process_crw);
+ ret = crw_register_handler(CRW_RSC_CPATH, chp_process_crw);
if (ret)
return ret;
chp_wq = create_singlethread_workqueue("cio_chp");
if (!chp_wq) {
- s390_unregister_crw_handler(CRW_RSC_CPATH);
+ crw_unregister_handler(CRW_RSC_CPATH);
return -ENOMEM;
}
INIT_WORK(&cfg_work, cfg_func);
#include <asm/cio.h>
#include <asm/chpid.h>
#include <asm/chsc.h>
+#include <asm/crw.h>
-#include "../s390mach.h"
#include "css.h"
#include "cio.h"
#include "cio_debug.h"
case 0x0102:
case 0x0103:
ret = -EINVAL;
+ break;
default:
ret = chsc_error_from_response(secm_area->response.code);
}
"chsc machine checks!\n");
return -ENOMEM;
}
- ret = s390_register_crw_handler(CRW_RSC_CSS, chsc_process_crw);
+ ret = crw_register_handler(CRW_RSC_CSS, chsc_process_crw);
if (ret)
kfree(sei_page);
return ret;
void __init chsc_free_sei_area(void)
{
- s390_unregister_crw_handler(CRW_RSC_CSS);
+ crw_unregister_handler(CRW_RSC_CSS);
kfree(sei_page);
}
#include <asm/isc.h>
#include <asm/cpu.h>
#include <asm/fcx.h>
+#include <asm/nmi.h>
+#include <asm/crw.h>
#include "cio.h"
#include "css.h"
#include "chsc.h"
#include "blacklist.h"
#include "cio_debug.h"
#include "chp.h"
-#include "../s390mach.h"
debug_info_t *cio_debug_msg_id;
debug_info_t *cio_debug_trace_id;
int cio_disable_subchannel(struct subchannel *sch)
{
char dbf_txt[15];
+ int retry;
int ret;
CIO_TRACE_EVENT (2, "dissch");
if (cio_update_schib(sch))
return -ENODEV;
- if (scsw_actl(&sch->schib.scsw) != 0)
- /*
- * the disable function must not be called while there are
- * requests pending for completion !
- */
- return -EBUSY;
-
sch->config.ena = 0;
- ret = cio_commit_config(sch);
+ for (retry = 0; retry < 3; retry++) {
+ ret = cio_commit_config(sch);
+ if (ret == -EBUSY) {
+ struct irb irb;
+ if (tsch(sch->schid, &irb) != 0)
+ break;
+ } else
+ break;
+ }
sprintf (dbf_txt, "ret:%d", ret);
CIO_TRACE_EVENT (2, dbf_txt);
return ret;
--- /dev/null
+/*
+ * Channel report handling code
+ *
+ * Copyright IBM Corp. 2000,2009
+ * Author(s): Ingo Adlung <adlung@de.ibm.com>,
+ * Martin Schwidefsky <schwidefsky@de.ibm.com>,
+ * Cornelia Huck <cornelia.huck@de.ibm.com>,
+ * Heiko Carstens <heiko.carstens@de.ibm.com>,
+ */
+
+#include <linux/semaphore.h>
+#include <linux/mutex.h>
+#include <linux/kthread.h>
+#include <linux/init.h>
+#include <asm/crw.h>
+
+static struct semaphore crw_semaphore;
+static DEFINE_MUTEX(crw_handler_mutex);
+static crw_handler_t crw_handlers[NR_RSCS];
+
+/**
+ * crw_register_handler() - register a channel report word handler
+ * @rsc: reporting source code to handle
+ * @handler: handler to be registered
+ *
+ * Returns %0 on success and a negative error value otherwise.
+ */
+int crw_register_handler(int rsc, crw_handler_t handler)
+{
+ int rc = 0;
+
+ if ((rsc < 0) || (rsc >= NR_RSCS))
+ return -EINVAL;
+ mutex_lock(&crw_handler_mutex);
+ if (crw_handlers[rsc])
+ rc = -EBUSY;
+ else
+ crw_handlers[rsc] = handler;
+ mutex_unlock(&crw_handler_mutex);
+ return rc;
+}
+
+/**
+ * crw_unregister_handler() - unregister a channel report word handler
+ * @rsc: reporting source code to handle
+ */
+void crw_unregister_handler(int rsc)
+{
+ if ((rsc < 0) || (rsc >= NR_RSCS))
+ return;
+ mutex_lock(&crw_handler_mutex);
+ crw_handlers[rsc] = NULL;
+ mutex_unlock(&crw_handler_mutex);
+}
+
+/*
+ * Retrieve CRWs and call function to handle event.
+ */
+static int crw_collect_info(void *unused)
+{
+ struct crw crw[2];
+ int ccode;
+ unsigned int chain;
+ int ignore;
+
+repeat:
+ ignore = down_interruptible(&crw_semaphore);
+ chain = 0;
+ while (1) {
+ crw_handler_t handler;
+
+ if (unlikely(chain > 1)) {
+ struct crw tmp_crw;
+
+ printk(KERN_WARNING"%s: Code does not support more "
+ "than two chained crws; please report to "
+ "linux390@de.ibm.com!\n", __func__);
+ ccode = stcrw(&tmp_crw);
+ printk(KERN_WARNING"%s: crw reports slct=%d, oflw=%d, "
+ "chn=%d, rsc=%X, anc=%d, erc=%X, rsid=%X\n",
+ __func__, tmp_crw.slct, tmp_crw.oflw,
+ tmp_crw.chn, tmp_crw.rsc, tmp_crw.anc,
+ tmp_crw.erc, tmp_crw.rsid);
+ printk(KERN_WARNING"%s: This was crw number %x in the "
+ "chain\n", __func__, chain);
+ if (ccode != 0)
+ break;
+ chain = tmp_crw.chn ? chain + 1 : 0;
+ continue;
+ }
+ ccode = stcrw(&crw[chain]);
+ if (ccode != 0)
+ break;
+ printk(KERN_DEBUG "crw_info : CRW reports slct=%d, oflw=%d, "
+ "chn=%d, rsc=%X, anc=%d, erc=%X, rsid=%X\n",
+ crw[chain].slct, crw[chain].oflw, crw[chain].chn,
+ crw[chain].rsc, crw[chain].anc, crw[chain].erc,
+ crw[chain].rsid);
+ /* Check for overflows. */
+ if (crw[chain].oflw) {
+ int i;
+
+ pr_debug("%s: crw overflow detected!\n", __func__);
+ mutex_lock(&crw_handler_mutex);
+ for (i = 0; i < NR_RSCS; i++) {
+ if (crw_handlers[i])
+ crw_handlers[i](NULL, NULL, 1);
+ }
+ mutex_unlock(&crw_handler_mutex);
+ chain = 0;
+ continue;
+ }
+ if (crw[0].chn && !chain) {
+ chain++;
+ continue;
+ }
+ mutex_lock(&crw_handler_mutex);
+ handler = crw_handlers[crw[chain].rsc];
+ if (handler)
+ handler(&crw[0], chain ? &crw[1] : NULL, 0);
+ mutex_unlock(&crw_handler_mutex);
+ /* chain is always 0 or 1 here. */
+ chain = crw[chain].chn ? chain + 1 : 0;
+ }
+ goto repeat;
+ return 0;
+}
+
+void crw_handle_channel_report(void)
+{
+ up(&crw_semaphore);
+}
+
+/*
+ * Separate initcall needed for semaphore initialization since
+ * crw_handle_channel_report might be called before crw_machine_check_init.
+ */
+static int __init crw_init_semaphore(void)
+{
+ init_MUTEX_LOCKED(&crw_semaphore);
+ return 0;
+}
+pure_initcall(crw_init_semaphore);
+
+/*
+ * Machine checks for the channel subsystem must be enabled
+ * after the channel subsystem is initialized
+ */
+static int __init crw_machine_check_init(void)
+{
+ struct task_struct *task;
+
+ task = kthread_run(crw_collect_info, NULL, "kmcheck");
+ if (IS_ERR(task))
+ return PTR_ERR(task);
+ ctl_set_bit(14, 28); /* enable channel report MCH */
+ return 0;
+}
+device_initcall(crw_machine_check_init);
#include <linux/list.h>
#include <linux/reboot.h>
#include <asm/isc.h>
+#include <asm/crw.h>
-#include "../s390mach.h"
#include "css.h"
#include "cio.h"
#include "cio_debug.h"
return rc;
}
+static int call_fn_all_sch(struct subchannel_id schid, void *data)
+{
+ struct cb_data *cb = data;
+ struct subchannel *sch;
+ int rc = 0;
+
+ sch = get_subchannel_by_schid(schid);
+ if (sch) {
+ if (cb->fn_known_sch)
+ rc = cb->fn_known_sch(sch, cb->data);
+ put_device(&sch->dev);
+ } else {
+ if (cb->fn_unknown_sch)
+ rc = cb->fn_unknown_sch(schid, cb->data);
+ }
+
+ return rc;
+}
+
int for_each_subchannel_staged(int (*fn_known)(struct subchannel *, void *),
int (*fn_unknown)(struct subchannel_id,
void *), void *data)
struct cb_data cb;
int rc;
- cb.set = idset_sch_new();
- if (!cb.set)
- return -ENOMEM;
- idset_fill(cb.set);
cb.data = data;
cb.fn_known_sch = fn_known;
cb.fn_unknown_sch = fn_unknown;
+
+ cb.set = idset_sch_new();
+ if (!cb.set)
+ /* fall back to brute force scanning in case of oom */
+ return for_each_subchannel(call_fn_all_sch, &cb);
+
+ idset_fill(cb.set);
+
/* Process registered subchannels. */
rc = bus_for_each_dev(&css_bus_type, NULL, &cb, call_fn_known_sch);
if (rc)
return ret;
}
+static void reprobe_after_idle(struct work_struct *unused)
+{
+ /* Make sure initial subchannel scan is done. */
+ wait_event(ccw_device_init_wq,
+ atomic_read(&ccw_device_init_count) == 0);
+ if (need_reprobe)
+ css_schedule_reprobe();
+}
+
+static DECLARE_WORK(reprobe_idle_work, reprobe_after_idle);
+
/* Work function used to reprobe all unregistered subchannels. */
static void reprobe_all(struct work_struct *unused)
{
CIO_MSG_EVENT(4, "reprobe start\n");
- need_reprobe = 0;
/* Make sure initial subchannel scan is done. */
- wait_event(ccw_device_init_wq,
- atomic_read(&ccw_device_init_count) == 0);
+ if (atomic_read(&ccw_device_init_count) != 0) {
+ queue_work(ccw_device_work, &reprobe_idle_work);
+ return;
+ }
+ need_reprobe = 0;
ret = for_each_subchannel_staged(NULL, reprobe_subchannel, NULL);
CIO_MSG_EVENT(4, "reprobe done (rc=%d, need_reprobe=%d)\n", ret,
css->global_pgid.pgid_high.ext_cssid.cssid = css->cssid;
} else {
#ifdef CONFIG_SMP
- css->global_pgid.pgid_high.cpu_addr = hard_smp_processor_id();
+ css->global_pgid.pgid_high.cpu_addr = stap();
#else
css->global_pgid.pgid_high.cpu_addr = 0;
#endif
if (ret)
goto out;
- ret = s390_register_crw_handler(CRW_RSC_SCH, css_process_crw);
+ ret = crw_register_handler(CRW_RSC_SCH, css_process_crw);
if (ret)
goto out;
out_bus:
bus_unregister(&css_bus_type);
out:
- s390_unregister_crw_handler(CRW_RSC_CSS);
+ crw_unregister_handler(CRW_RSC_CSS);
chsc_free_sei_area();
kfree(slow_subchannel_set);
pr_alert("The CSS device driver initialization failed with "
return (ret == 0) ? -ENODEV : ret;
}
-static void online_store_handle_offline(struct ccw_device *cdev)
+static int online_store_handle_offline(struct ccw_device *cdev)
{
if (cdev->private->state == DEV_STATE_DISCONNECTED)
ccw_device_remove_disconnected(cdev);
- else if (cdev->drv && cdev->drv->set_offline)
- ccw_device_set_offline(cdev);
+ else if (cdev->online && cdev->drv && cdev->drv->set_offline)
+ return ccw_device_set_offline(cdev);
+ return 0;
}
static int online_store_recog_and_online(struct ccw_device *cdev)
goto out;
switch (i) {
case 0:
- online_store_handle_offline(cdev);
- ret = count;
+ ret = online_store_handle_offline(cdev);
break;
case 1:
ret = online_store_handle_online(cdev, force);
- if (!ret)
- ret = count;
break;
default:
ret = -EINVAL;
if (cdev->drv)
module_put(cdev->drv->owner);
atomic_set(&cdev->private->onoff, 0);
- return ret;
+ return (ret < 0) ? ret : count;
}
static ssize_t
return dev ? to_ccwdev(dev) : NULL;
}
-static void
-ccw_device_add_changed(struct work_struct *work)
-{
- struct ccw_device_private *priv;
- struct ccw_device *cdev;
-
- priv = container_of(work, struct ccw_device_private, kick_work);
- cdev = priv->cdev;
- if (device_add(&cdev->dev)) {
- put_device(&cdev->dev);
- return;
- }
- set_bit(1, &cdev->private->registered);
-}
-
-void ccw_device_do_unreg_rereg(struct work_struct *work)
+void ccw_device_do_unbind_bind(struct work_struct *work)
{
struct ccw_device_private *priv;
struct ccw_device *cdev;
struct subchannel *sch;
+ int ret;
priv = container_of(work, struct ccw_device_private, kick_work);
cdev = priv->cdev;
sch = to_subchannel(cdev->dev.parent);
- ccw_device_unregister(cdev);
- PREPARE_WORK(&cdev->private->kick_work,
- ccw_device_add_changed);
- queue_work(ccw_device_work, &cdev->private->kick_work);
+ if (test_bit(1, &cdev->private->registered)) {
+ device_release_driver(&cdev->dev);
+ ret = device_attach(&cdev->dev);
+ WARN_ON(ret == -ENODEV);
+ }
}
static void
void
io_subchannel_recog_done(struct ccw_device *cdev)
{
- struct subchannel *sch;
-
if (css_init_done == 0) {
cdev->private->flags.recog_done = 1;
return;
/* Remove device found not operational. */
if (!get_device(&cdev->dev))
break;
- sch = to_subchannel(cdev->dev.parent);
PREPARE_WORK(&cdev->private->kick_work,
ccw_device_call_sch_unregister);
queue_work(slow_path_wq, &cdev->private->kick_work);
int ccw_device_cancel_halt_clear(struct ccw_device *);
-void ccw_device_do_unreg_rereg(struct work_struct *);
+void ccw_device_do_unbind_bind(struct work_struct *);
void ccw_device_move_to_orphanage(struct work_struct *);
int ccw_device_is_orphan(struct ccw_device *);
cdev->id.dev_type != cdev->private->senseid.dev_type ||
cdev->id.dev_model != cdev->private->senseid.dev_model) {
PREPARE_WORK(&cdev->private->kick_work,
- ccw_device_do_unreg_rereg);
+ ccw_device_do_unbind_bind);
queue_work(ccw_device_work, &cdev->private->kick_work);
return 0;
}
}
/* Driver doesn't want device back. */
ccw_device_set_notoper(cdev);
- PREPARE_WORK(&cdev->private->kick_work, ccw_device_do_unreg_rereg);
+ PREPARE_WORK(&cdev->private->kick_work, ccw_device_do_unbind_bind);
queue_work(ccw_device_work, &cdev->private->kick_work);
}
{
struct subchannel *sch;
- cdev->private->state = DEV_STATE_NOT_OPER;
+ ccw_device_set_notoper(cdev);
sch = to_subchannel(cdev->dev.parent);
css_schedule_eval(sch->schid);
}
sch = to_subchannel(cdev->dev.parent);
/*
* An interrupt in state offline means a previous disable was not
- * successful. Try again.
+ * successful - should not happen, but we try to disable again.
*/
cio_disable_subchannel(sch);
}
if (cdev->private->state != DEV_STATE_ONLINE)
return -EIO;
if (!scsw_is_tm(&sch->schib.scsw) ||
- !(scsw_actl(&sch->schib.scsw) | SCSW_ACTL_START_PEND))
+ !(scsw_actl(&sch->schib.scsw) & SCSW_ACTL_START_PEND))
return -EINVAL;
return cio_tm_intrg(sch);
}
/* input buffer acknowledgement flag */
int polling;
+ /* first ACK'ed buffer */
+ int ack_start;
+
/* how much sbals are acknowledged with qebsm */
int ack_count;
int first_to_check;
/* first_to_check of the last time */
- int last_move_ftc;
+ int last_move;
/* beginning position for calling the program */
int first_to_kick;
struct qdio_irq *irq_ptr;
struct tasklet_struct tasklet;
- spinlock_t lock;
/* error condition during a data transfer */
unsigned int qdio_error;
int auto_ack);
void qdio_check_outbound_after_thinint(struct qdio_q *q);
int qdio_inbound_q_moved(struct qdio_q *q);
-void qdio_kick_inbound_handler(struct qdio_q *q);
+void qdio_kick_handler(struct qdio_q *q);
void qdio_stop_polling(struct qdio_q *q);
int qdio_siga_sync_q(struct qdio_q *q);
seq_printf(m, "device state indicator: %d\n", *(u32 *)q->irq_ptr->dsci);
seq_printf(m, "nr_used: %d\n", atomic_read(&q->nr_buf_used));
seq_printf(m, "ftc: %d\n", q->first_to_check);
- seq_printf(m, "last_move_ftc: %d\n", q->last_move_ftc);
+ seq_printf(m, "last_move: %d\n", q->last_move);
seq_printf(m, "polling: %d\n", q->u.in.polling);
+ seq_printf(m, "ack start: %d\n", q->u.in.ack_start);
seq_printf(m, "ack count: %d\n", q->u.in.ack_count);
seq_printf(m, "slsb buffer states:\n");
seq_printf(m, "|0 |8 |16 |24 |32 |40 |48 |56 63|\n");
/* show the card that we are not polling anymore */
if (is_qebsm(q)) {
- set_buf_states(q, q->last_move_ftc, SLSB_P_INPUT_NOT_INIT,
+ set_buf_states(q, q->u.in.ack_start, SLSB_P_INPUT_NOT_INIT,
q->u.in.ack_count);
q->u.in.ack_count = 0;
} else
- set_buf_state(q, q->last_move_ftc, SLSB_P_INPUT_NOT_INIT);
+ set_buf_state(q, q->u.in.ack_start, SLSB_P_INPUT_NOT_INIT);
}
static void announce_buffer_error(struct qdio_q *q, int count)
if (!q->u.in.polling) {
q->u.in.polling = 1;
q->u.in.ack_count = count;
- q->last_move_ftc = q->first_to_check;
+ q->u.in.ack_start = q->first_to_check;
return;
}
/* delete the previous ACK's */
- set_buf_states(q, q->last_move_ftc, SLSB_P_INPUT_NOT_INIT,
+ set_buf_states(q, q->u.in.ack_start, SLSB_P_INPUT_NOT_INIT,
q->u.in.ack_count);
q->u.in.ack_count = count;
- q->last_move_ftc = q->first_to_check;
+ q->u.in.ack_start = q->first_to_check;
return;
}
if (q->u.in.polling) {
/* reset the previous ACK but first set the new one */
set_buf_state(q, new, SLSB_P_INPUT_ACK);
- set_buf_state(q, q->last_move_ftc, SLSB_P_INPUT_NOT_INIT);
- }
- else {
+ set_buf_state(q, q->u.in.ack_start, SLSB_P_INPUT_NOT_INIT);
+ } else {
q->u.in.polling = 1;
- set_buf_state(q, q->first_to_check, SLSB_P_INPUT_ACK);
+ set_buf_state(q, new, SLSB_P_INPUT_ACK);
}
- q->last_move_ftc = new;
+ q->u.in.ack_start = new;
count--;
if (!count)
return;
* Need to change all PRIMED buffers to NOT_INIT, otherwise
* we're loosing initiative in the thinint code.
*/
- set_buf_states(q, next_buf(q->first_to_check), SLSB_P_INPUT_NOT_INIT,
+ set_buf_states(q, q->first_to_check, SLSB_P_INPUT_NOT_INIT,
count);
}
bufnr = get_inbound_buffer_frontier(q);
- if ((bufnr != q->last_move_ftc) || q->qdio_error) {
+ if ((bufnr != q->last_move) || q->qdio_error) {
+ q->last_move = bufnr;
if (!need_siga_sync(q) && !pci_out_supported(q))
q->u.in.timestamp = get_usecs();
}
}
-void qdio_kick_inbound_handler(struct qdio_q *q)
+void qdio_kick_handler(struct qdio_q *q)
{
- int count, start, end;
-
- qdio_perf_stat_inc(&perf_stats.inbound_handler);
-
- start = q->first_to_kick;
- end = q->first_to_check;
- if (end >= start)
- count = end - start;
- else
- count = end + QDIO_MAX_BUFFERS_PER_Q - start;
-
- DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "kih s:%3d c:%3d", start, count);
+ int start = q->first_to_kick;
+ int end = q->first_to_check;
+ int count;
if (unlikely(q->irq_ptr->state != QDIO_IRQ_STATE_ACTIVE))
return;
- q->handler(q->irq_ptr->cdev, q->qdio_error, q->nr,
- start, count, q->irq_ptr->int_parm);
+ count = sub_buf(end, start);
+
+ if (q->is_input_q) {
+ qdio_perf_stat_inc(&perf_stats.inbound_handler);
+ DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "kih s:%3d c:%3d", start, count);
+ } else {
+ DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "koh: nr:%1d", q->nr);
+ DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "s:%3d c:%3d", start, count);
+ }
+
+ q->handler(q->irq_ptr->cdev, q->qdio_error, q->nr, start, count,
+ q->irq_ptr->int_parm);
/* for the next time */
- q->first_to_kick = q->first_to_check;
+ q->first_to_kick = end;
q->qdio_error = 0;
}
if (!qdio_inbound_q_moved(q))
return;
- qdio_kick_inbound_handler(q);
+ qdio_kick_handler(q);
if (!qdio_inbound_q_done(q))
/* means poll time is not yet over */
bufnr = get_outbound_buffer_frontier(q);
- if ((bufnr != q->last_move_ftc) || q->qdio_error) {
- q->last_move_ftc = bufnr;
+ if ((bufnr != q->last_move) || q->qdio_error) {
+ q->last_move = bufnr;
DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "out moved:%1d", q->nr);
return 1;
} else
return 0;
}
-static void qdio_kick_outbound_q(struct qdio_q *q)
+static int qdio_kick_outbound_q(struct qdio_q *q)
{
unsigned int busy_bit;
int cc;
if (!need_siga_out(q))
- return;
+ return 0;
DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "siga-w:%1d", q->nr);
qdio_perf_stat_inc(&perf_stats.siga_out);
case 2:
if (busy_bit) {
DBF_ERROR("%4x cc2 REP:%1d", SCH_NO(q), q->nr);
- q->qdio_error = cc | QDIO_ERROR_SIGA_BUSY;
- } else {
- DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "siga-w cc2:%1d",
- q->nr);
- q->qdio_error = cc;
- }
+ cc |= QDIO_ERROR_SIGA_BUSY;
+ } else
+ DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "siga-w cc2:%1d", q->nr);
break;
case 1:
case 3:
DBF_ERROR("%4x SIGA-W:%1d", SCH_NO(q), cc);
- q->qdio_error = cc;
break;
}
-}
-
-static void qdio_kick_outbound_handler(struct qdio_q *q)
-{
- int start, end, count;
-
- start = q->first_to_kick;
- end = q->last_move_ftc;
- if (end >= start)
- count = end - start;
- else
- count = end + QDIO_MAX_BUFFERS_PER_Q - start;
-
- DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "kickouth: %1d", q->nr);
- DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "s:%3d c:%3d", start, count);
-
- if (unlikely(q->irq_ptr->state != QDIO_IRQ_STATE_ACTIVE))
- return;
-
- q->handler(q->irq_ptr->cdev, q->qdio_error, q->nr, start, count,
- q->irq_ptr->int_parm);
-
- /* for the next time: */
- q->first_to_kick = q->last_move_ftc;
- q->qdio_error = 0;
+ return cc;
}
static void __qdio_outbound_processing(struct qdio_q *q)
{
- unsigned long flags;
-
qdio_perf_stat_inc(&perf_stats.tasklet_outbound);
- spin_lock_irqsave(&q->lock, flags);
-
BUG_ON(atomic_read(&q->nr_buf_used) < 0);
if (qdio_outbound_q_moved(q))
- qdio_kick_outbound_handler(q);
-
- spin_unlock_irqrestore(&q->lock, flags);
+ qdio_kick_handler(q);
- if (queue_type(q) == QDIO_ZFCP_QFMT) {
+ if (queue_type(q) == QDIO_ZFCP_QFMT)
if (!pci_out_supported(q) && !qdio_outbound_q_done(q))
- tasklet_schedule(&q->tasklet);
- return;
- }
+ goto sched;
/* bail out for HiperSockets unicast queues */
if (queue_type(q) == QDIO_IQDIO_QFMT && !multicast_outbound(q))
return;
if ((queue_type(q) == QDIO_IQDIO_QFMT) &&
- (atomic_read(&q->nr_buf_used)) > QDIO_IQDIO_POLL_LVL) {
- tasklet_schedule(&q->tasklet);
- return;
- }
+ (atomic_read(&q->nr_buf_used)) > QDIO_IQDIO_POLL_LVL)
+ goto sched;
if (q->u.out.pci_out_enabled)
return;
qdio_perf_stat_inc(&perf_stats.debug_tl_out_timer);
}
}
+ return;
+
+sched:
+ if (unlikely(q->irq_ptr->state == QDIO_IRQ_STATE_STOPPED))
+ return;
+ tasklet_schedule(&q->tasklet);
}
/* outbound tasklet */
void qdio_outbound_timer(unsigned long data)
{
struct qdio_q *q = (struct qdio_q *)data;
+
+ if (unlikely(q->irq_ptr->state == QDIO_IRQ_STATE_STOPPED))
+ return;
tasklet_schedule(&q->tasklet);
}
int i;
struct qdio_q *q;
+ if (unlikely(irq_ptr->state == QDIO_IRQ_STATE_STOPPED))
+ return;
+
qdio_perf_stat_inc(&perf_stats.pci_int);
for_each_input_queue(irq_ptr, q, i)
* @cdev: associated ccw device
* @how: use halt or clear to shutdown
*
- * This function calls qdio_shutdown() for @cdev with method @how
- * and on success qdio_free() for @cdev.
+ * This function calls qdio_shutdown() for @cdev with method @how.
+ * and qdio_free(). The qdio_free() return value is ignored since
+ * !irq_ptr is already checked.
*/
int qdio_cleanup(struct ccw_device *cdev, int how)
{
return -ENODEV;
rc = qdio_shutdown(cdev, how);
- if (rc == 0)
- rc = qdio_free(cdev);
+
+ qdio_free(cdev);
return rc;
}
EXPORT_SYMBOL_GPL(qdio_cleanup);
int i;
for_each_input_queue(irq_ptr, q, i)
- tasklet_disable(&q->tasklet);
+ tasklet_kill(&q->tasklet);
for_each_output_queue(irq_ptr, q, i) {
- tasklet_disable(&q->tasklet);
del_timer(&q->u.out.timer);
+ tasklet_kill(&q->tasklet);
}
}
if (!irq_ptr)
return -ENODEV;
+ BUG_ON(irqs_disabled());
DBF_EVENT("qshutdown:%4x", cdev->private->schid.sch_no);
mutex_lock(&irq_ptr->setup_mutex);
return 0;
}
+ /*
+ * Indicate that the device is going down. Scheduling the queue
+ * tasklets is forbidden from here on.
+ */
+ qdio_set_state(irq_ptr, QDIO_IRQ_STATE_STOPPED);
+
tiqdio_remove_input_queues(irq_ptr);
qdio_shutdown_queues(cdev);
qdio_shutdown_debug_entries(irq_ptr, cdev);
switch (irq_ptr->state) {
case QDIO_IRQ_STATE_STOPPED:
case QDIO_IRQ_STATE_ERR:
- mutex_unlock(&irq_ptr->setup_mutex);
- qdio_shutdown(cdev, QDIO_FLAG_CLEANUP_USING_CLEAR);
- return -EIO;
+ rc = -EIO;
+ break;
default:
qdio_set_state(irq_ptr, QDIO_IRQ_STATE_ACTIVE);
rc = 0;
* @bufnr: first buffer to process
* @count: how many buffers are emptied
*/
-static void handle_inbound(struct qdio_q *q, unsigned int callflags,
- int bufnr, int count)
+static int handle_inbound(struct qdio_q *q, unsigned int callflags,
+ int bufnr, int count)
{
- int used, cc, diff;
+ int used, diff;
if (!q->u.in.polling)
goto set;
q->u.in.polling = 0;
q->u.in.ack_count = 0;
goto set;
- } else if (buf_in_between(q->last_move_ftc, bufnr, count)) {
+ } else if (buf_in_between(q->u.in.ack_start, bufnr, count)) {
if (is_qebsm(q)) {
- /* partial overwrite, just update last_move_ftc */
+ /* partial overwrite, just update ack_start */
diff = add_buf(bufnr, count);
- diff = sub_buf(diff, q->last_move_ftc);
+ diff = sub_buf(diff, q->u.in.ack_start);
q->u.in.ack_count -= diff;
if (q->u.in.ack_count <= 0) {
q->u.in.polling = 0;
q->u.in.ack_count = 0;
- /* TODO: must we set last_move_ftc to something meaningful? */
goto set;
}
- q->last_move_ftc = add_buf(q->last_move_ftc, diff);
+ q->u.in.ack_start = add_buf(q->u.in.ack_start, diff);
}
else
/* the only ACK will be deleted, so stop polling */
/* no need to signal as long as the adapter had free buffers */
if (used)
- return;
+ return 0;
- if (need_siga_in(q)) {
- cc = qdio_siga_input(q);
- if (cc)
- q->qdio_error = cc;
- }
+ if (need_siga_in(q))
+ return qdio_siga_input(q);
+ return 0;
}
/**
* @bufnr: first buffer to process
* @count: how many buffers are filled
*/
-static void handle_outbound(struct qdio_q *q, unsigned int callflags,
- int bufnr, int count)
+static int handle_outbound(struct qdio_q *q, unsigned int callflags,
+ int bufnr, int count)
{
unsigned char state;
- int used;
+ int used, rc = 0;
qdio_perf_stat_inc(&perf_stats.outbound_handler);
if (queue_type(q) == QDIO_IQDIO_QFMT) {
if (multicast_outbound(q))
- qdio_kick_outbound_q(q);
+ rc = qdio_kick_outbound_q(q);
else
if ((q->irq_ptr->ssqd_desc.mmwc > 1) &&
(count > 1) &&
(count <= q->irq_ptr->ssqd_desc.mmwc)) {
/* exploit enhanced SIGA */
q->u.out.use_enh_siga = 1;
- qdio_kick_outbound_q(q);
+ rc = qdio_kick_outbound_q(q);
} else {
/*
* One siga-w per buffer required for unicast
* HiperSockets.
*/
q->u.out.use_enh_siga = 0;
- while (count--)
- qdio_kick_outbound_q(q);
+ while (count--) {
+ rc = qdio_kick_outbound_q(q);
+ if (rc)
+ goto out;
+ }
}
-
- /* report CC=2 conditions synchronously */
- if (q->qdio_error)
- __qdio_outbound_processing(q);
goto out;
}
/* try to fast requeue buffers */
get_buf_state(q, prev_buf(bufnr), &state, 0);
if (state != SLSB_CU_OUTPUT_PRIMED)
- qdio_kick_outbound_q(q);
+ rc = qdio_kick_outbound_q(q);
else {
DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "fast-req");
qdio_perf_stat_inc(&perf_stats.fast_requeue);
}
out:
- /* Fixme: could wait forever if called from process context */
tasklet_schedule(&q->tasklet);
+ return rc;
}
/**
return -EBUSY;
if (callflags & QDIO_FLAG_SYNC_INPUT)
- handle_inbound(irq_ptr->input_qs[q_nr], callflags, bufnr,
- count);
+ return handle_inbound(irq_ptr->input_qs[q_nr],
+ callflags, bufnr, count);
else if (callflags & QDIO_FLAG_SYNC_OUTPUT)
- handle_outbound(irq_ptr->output_qs[q_nr], callflags, bufnr,
- count);
- else
- return -EINVAL;
- return 0;
+ return handle_outbound(irq_ptr->output_qs[q_nr],
+ callflags, bufnr, count);
+ return -EINVAL;
}
EXPORT_SYMBOL_GPL(do_QDIO);
q->mask = 1 << (31 - i);
q->nr = i;
q->handler = handler;
- spin_lock_init(&q->lock);
}
static void setup_storage_lists(struct qdio_q *q, struct qdio_irq *irq_ptr,
/* list of thin interrupt input queues */
static LIST_HEAD(tiq_list);
+DEFINE_MUTEX(tiq_list_lock);
/* adapter local summary indicator */
static unsigned char *tiqdio_alsi;
if (!css_qdio_omit_svs && irq_ptr->siga_flag.sync)
css_qdio_omit_svs = 1;
- for_each_input_queue(irq_ptr, q, i) {
+ mutex_lock(&tiq_list_lock);
+ for_each_input_queue(irq_ptr, q, i)
list_add_rcu(&q->entry, &tiq_list);
- synchronize_rcu();
- }
+ mutex_unlock(&tiq_list_lock);
xchg(irq_ptr->dsci, 1);
- tasklet_schedule(&tiqdio_tasklet);
}
/*
/* if establish triggered an error */
if (!q || !q->entry.prev || !q->entry.next)
continue;
+
+ mutex_lock(&tiq_list_lock);
list_del_rcu(&q->entry);
+ mutex_unlock(&tiq_list_lock);
synchronize_rcu();
}
}
*/
qdio_check_outbound_after_thinint(q);
-again:
if (!qdio_inbound_q_moved(q))
return;
- qdio_kick_inbound_handler(q);
+ qdio_kick_handler(q);
if (!tiqdio_inbound_q_done(q)) {
qdio_perf_stat_inc(&perf_stats.thinint_inbound_loop);
- goto again;
+ if (likely(q->irq_ptr->state != QDIO_IRQ_STATE_STOPPED))
+ tasklet_schedule(&q->tasklet);
}
qdio_stop_polling(q);
*/
if (!tiqdio_inbound_q_done(q)) {
qdio_perf_stat_inc(&perf_stats.thinint_inbound_loop2);
- goto again;
+ if (likely(q->irq_ptr->state != QDIO_IRQ_STATE_STOPPED))
+ tasklet_schedule(&q->tasklet);
}
}
void __exit tiqdio_unregister_thinints(void)
{
- tasklet_disable(&tiqdio_tasklet);
+ WARN_ON(!list_empty(&tiq_list));
if (tiqdio_alsi) {
s390_unregister_adapter_interrupt(tiqdio_alsi, QDIO_AIRQ_ISC);
isc_unregister(QDIO_AIRQ_ISC);
}
+ tasklet_kill(&tiqdio_tasklet);
}
if (l == zdev->list.prev)
return;
/* Move zdev behind l */
- list_del(&zdev->list);
- list_add(&zdev->list, l);
+ list_move(&zdev->list, l);
}
/**
if (l == zdev->list.next)
return;
/* Move zdev before l */
- list_del(&zdev->list);
- list_add_tail(&zdev->list, l);
+ list_move_tail(&zdev->list, l);
}
static void zcrypt_device_release(struct kref *kref)
/* Signal pending. */
ap_cancel_message(zdev->ap_dev, &ap_msg);
out_free:
- memset(ap_msg.message, 0x0, ap_msg.length);
- kfree(ap_msg.message);
+ kzfree(ap_msg.message);
return rc;
}
+++ /dev/null
-/*
- * arch/s390/kernel/ebcdic.c
- * ECBDIC -> ASCII, ASCII -> ECBDIC conversion tables.
- *
- * S390 version
- * Copyright (C) 1998 IBM Corporation
- * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>
- */
-
-#include <asm/types.h>
-
-/*
- * ASCII -> EBCDIC
- */
-__u8 _ascebc[256] =
-{
- /*00 NL SH SX EX ET NQ AK BL */
- 0x00, 0x01, 0x02, 0x03, 0x37, 0x2D, 0x2E, 0x2F,
- /*08 BS HT LF VT FF CR SO SI */
- 0x16, 0x05, 0x15, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
- /*10 DL D1 D2 D3 D4 NK SN EB */
- 0x10, 0x11, 0x12, 0x13, 0x3C, 0x15, 0x32, 0x26,
- /*18 CN EM SB EC FS GS RS US */
- 0x18, 0x19, 0x3F, 0x27, 0x1C, 0x1D, 0x1E, 0x1F,
- /*20 SP ! " # $ % & ' */
- 0x40, 0x5A, 0x7F, 0x7B, 0x5B, 0x6C, 0x50, 0x7D,
- /*28 ( ) * + , - . / */
- 0x4D, 0x5D, 0x5C, 0x4E, 0x6B, 0x60, 0x4B, 0x61,
- /*30 0 1 2 3 4 5 6 7 */
- 0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7,
- /*38 8 9 : ; < = > ? */
- 0xF8, 0xF9, 0x7A, 0x5E, 0x4C, 0x7E, 0x6E, 0x6F,
- /*40 @ A B C D E F G */
- 0x7C, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7,
- /*48 H I J K L M N O */
- 0xC8, 0xC9, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6,
- /*50 P Q R S T U V W */
- 0xD7, 0xD8, 0xD9, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6,
- /*58 X Y Z [ \ ] ^ _ */
- 0xE7, 0xE8, 0xE9, 0xAD, 0xE0, 0xBD, 0x5F, 0x6D,
- /*60 ` a b c d e f g */
- 0x79, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
- /*68 h i j k l m n o */
- 0x88, 0x89, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96,
- /*70 p q r s t u v w */
- 0x97, 0x98, 0x99, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6,
- /*78 x y z { | } ~ DL */
- 0xA7, 0xA8, 0xA9, 0xC0, 0x4F, 0xD0, 0xA1, 0x07,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0xFF
-};
-
-/*
- * EBCDIC -> ASCII
- */
-__u8 _ebcasc[256] =
-{
- /* 0x00 NUL SOH STX ETX *SEL HT *RNL DEL */
- 0x00, 0x01, 0x02, 0x03, 0x07, 0x09, 0x07, 0x7F,
- /* 0x08 -GE -SPS -RPT VT FF CR SO SI */
- 0x07, 0x07, 0x07, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
- /* 0x10 DLE DC1 DC2 DC3 -RES -NL BS -POC
- -ENP ->LF */
- 0x10, 0x11, 0x12, 0x13, 0x07, 0x0A, 0x08, 0x07,
- /* 0x18 CAN EM -UBS -CU1 -IFS -IGS -IRS -ITB
- -IUS */
- 0x18, 0x19, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07,
- /* 0x20 -DS -SOS FS -WUS -BYP LF ETB ESC
- -INP */
- 0x07, 0x07, 0x1C, 0x07, 0x07, 0x0A, 0x17, 0x1B,
- /* 0x28 -SA -SFE -SM -CSP -MFA ENQ ACK BEL
- -SW */
- 0x07, 0x07, 0x07, 0x07, 0x07, 0x05, 0x06, 0x07,
- /* 0x30 ---- ---- SYN -IR -PP -TRN -NBS EOT */
- 0x07, 0x07, 0x16, 0x07, 0x07, 0x07, 0x07, 0x04,
- /* 0x38 -SBS -IT -RFF -CU3 DC4 NAK ---- SUB */
- 0x07, 0x07, 0x07, 0x07, 0x14, 0x15, 0x07, 0x1A,
- /* 0x40 SP RSP \81ä ---- */
- 0x20, 0xFF, 0x83, 0x84, 0x85, 0xA0, 0x07, 0x86,
- /* 0x48 . < ( + | */
- 0x87, 0xA4, 0x9B, 0x2E, 0x3C, 0x28, 0x2B, 0x7C,
- /* 0x50 & ---- */
- 0x26, 0x82, 0x88, 0x89, 0x8A, 0xA1, 0x8C, 0x07,
- /* 0x58 \81ß ! $ * ) ; */
- 0x8D, 0xE1, 0x21, 0x24, 0x2A, 0x29, 0x3B, 0xAA,
- /* 0x60 - / ---- \81Ä ---- ---- ---- */
- 0x2D, 0x2F, 0x07, 0x8E, 0x07, 0x07, 0x07, 0x8F,
- /* 0x68 ---- , % _ > ? */
- 0x80, 0xA5, 0x07, 0x2C, 0x25, 0x5F, 0x3E, 0x3F,
- /* 0x70 ---- ---- ---- ---- ---- ---- ---- */
- 0x07, 0x90, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07,
- /* 0x78 * ` : # @ ' = " */
- 0x70, 0x60, 0x3A, 0x23, 0x40, 0x27, 0x3D, 0x22,
- /* 0x80 * a b c d e f g */
- 0x07, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
- /* 0x88 h i ---- ---- ---- */
- 0x68, 0x69, 0xAE, 0xAF, 0x07, 0x07, 0x07, 0xF1,
- /* 0x90 \81° j k l m n o p */
- 0xF8, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, 0x70,
- /* 0x98 q r ---- ---- */
- 0x71, 0x72, 0xA6, 0xA7, 0x91, 0x07, 0x92, 0x07,
- /* 0xA0 ~ s t u v w x */
- 0xE6, 0x7E, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78,
- /* 0xA8 y z ---- ---- ---- ---- */
- 0x79, 0x7A, 0xAD, 0xAB, 0x07, 0x07, 0x07, 0x07,
- /* 0xB0 ^ ---- \81§ ---- */
- 0x5E, 0x9C, 0x9D, 0xFA, 0x07, 0x07, 0x07, 0xAC,
- /* 0xB8 ---- [ ] ---- ---- ---- ---- */
- 0xAB, 0x07, 0x5B, 0x5D, 0x07, 0x07, 0x07, 0x07,
- /* 0xC0 { A B C D E F G */
- 0x7B, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47,
- /* 0xC8 H I ---- \81ö ---- */
- 0x48, 0x49, 0x07, 0x93, 0x94, 0x95, 0xA2, 0x07,
- /* 0xD0 } J K L M N O P */
- 0x7D, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, 0x50,
- /* 0xD8 Q R ---- \81ü */
- 0x51, 0x52, 0x07, 0x96, 0x81, 0x97, 0xA3, 0x98,
- /* 0xE0 \ S T U V W X */
- 0x5C, 0xF6, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58,
- /* 0xE8 Y Z ---- \81Ö ---- ---- ---- */
- 0x59, 0x5A, 0xFD, 0x07, 0x99, 0x07, 0x07, 0x07,
- /* 0xF0 0 1 2 3 4 5 6 7 */
- 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
- /* 0xF8 8 9 ---- ---- \81Ü ---- ---- ---- */
- 0x38, 0x39, 0x07, 0x07, 0x9A, 0x07, 0x07, 0x07
-};
-
-/*
- * EBCDIC (capitals) -> ASCII (small case)
- */
-__u8 _ebcasc_reduce_case[256] =
-{
- /* 0x00 NUL SOH STX ETX *SEL HT *RNL DEL */
- 0x00, 0x01, 0x02, 0x03, 0x07, 0x09, 0x07, 0x7F,
-
- /* 0x08 -GE -SPS -RPT VT FF CR SO SI */
- 0x07, 0x07, 0x07, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
-
- /* 0x10 DLE DC1 DC2 DC3 -RES -NL BS -POC
- -ENP ->LF */
- 0x10, 0x11, 0x12, 0x13, 0x07, 0x0A, 0x08, 0x07,
-
- /* 0x18 CAN EM -UBS -CU1 -IFS -IGS -IRS -ITB
- -IUS */
- 0x18, 0x19, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07,
-
- /* 0x20 -DS -SOS FS -WUS -BYP LF ETB ESC
- -INP */
- 0x07, 0x07, 0x1C, 0x07, 0x07, 0x0A, 0x17, 0x1B,
-
- /* 0x28 -SA -SFE -SM -CSP -MFA ENQ ACK BEL
- -SW */
- 0x07, 0x07, 0x07, 0x07, 0x07, 0x05, 0x06, 0x07,
-
- /* 0x30 ---- ---- SYN -IR -PP -TRN -NBS EOT */
- 0x07, 0x07, 0x16, 0x07, 0x07, 0x07, 0x07, 0x04,
-
- /* 0x38 -SBS -IT -RFF -CU3 DC4 NAK ---- SUB */
- 0x07, 0x07, 0x07, 0x07, 0x14, 0x15, 0x07, 0x1A,
-
- /* 0x40 SP RSP \81ä ---- */
- 0x20, 0xFF, 0x83, 0x84, 0x85, 0xA0, 0x07, 0x86,
-
- /* 0x48 . < ( + | */
- 0x87, 0xA4, 0x9B, 0x2E, 0x3C, 0x28, 0x2B, 0x7C,
-
- /* 0x50 & ---- */
- 0x26, 0x82, 0x88, 0x89, 0x8A, 0xA1, 0x8C, 0x07,
-
- /* 0x58 \81ß ! $ * ) ; */
- 0x8D, 0xE1, 0x21, 0x24, 0x2A, 0x29, 0x3B, 0xAA,
-
- /* 0x60 - / ---- \81Ä ---- ---- ---- */
- 0x2D, 0x2F, 0x07, 0x84, 0x07, 0x07, 0x07, 0x8F,
-
- /* 0x68 ---- , % _ > ? */
- 0x80, 0xA5, 0x07, 0x2C, 0x25, 0x5F, 0x3E, 0x3F,
-
- /* 0x70 ---- ---- ---- ---- ---- ---- ---- */
- 0x07, 0x90, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07,
-
- /* 0x78 * ` : # @ ' = " */
- 0x70, 0x60, 0x3A, 0x23, 0x40, 0x27, 0x3D, 0x22,
-
- /* 0x80 * a b c d e f g */
- 0x07, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
-
- /* 0x88 h i ---- ---- ---- */
- 0x68, 0x69, 0xAE, 0xAF, 0x07, 0x07, 0x07, 0xF1,
-
- /* 0x90 \81° j k l m n o p */
- 0xF8, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, 0x70,
-
- /* 0x98 q r ---- ---- */
- 0x71, 0x72, 0xA6, 0xA7, 0x91, 0x07, 0x92, 0x07,
-
- /* 0xA0 ~ s t u v w x */
- 0xE6, 0x7E, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78,
-
- /* 0xA8 y z ---- ---- ---- ---- */
- 0x79, 0x7A, 0xAD, 0xAB, 0x07, 0x07, 0x07, 0x07,
-
- /* 0xB0 ^ ---- \81§ ---- */
- 0x5E, 0x9C, 0x9D, 0xFA, 0x07, 0x07, 0x07, 0xAC,
-
- /* 0xB8 ---- [ ] ---- ---- ---- ---- */
- 0xAB, 0x07, 0x5B, 0x5D, 0x07, 0x07, 0x07, 0x07,
-
- /* 0xC0 { A B C D E F G */
- 0x7B, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
-
- /* 0xC8 H I ---- \81ö ---- */
- 0x68, 0x69, 0x07, 0x93, 0x94, 0x95, 0xA2, 0x07,
-
- /* 0xD0 } J K L M N O P */
- 0x7D, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, 0x70,
-
- /* 0xD8 Q R ---- \81ü */
- 0x71, 0x72, 0x07, 0x96, 0x81, 0x97, 0xA3, 0x98,
-
- /* 0xE0 \ S T U V W X */
- 0x5C, 0xF6, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78,
-
- /* 0xE8 Y Z ---- \81Ö ---- ---- ---- */
- 0x79, 0x7A, 0xFD, 0x07, 0x94, 0x07, 0x07, 0x07,
-
- /* 0xF0 0 1 2 3 4 5 6 7 */
- 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
-
- /* 0xF8 8 9 ---- ---- \81Ü ---- ---- ---- */
- 0x38, 0x39, 0x07, 0x07, 0x81, 0x07, 0x07, 0x07
-};
struct qeth_qdio_out_buffer *buffer, unsigned int qdio_err)
{
int sbalf15 = buffer->buffer->element[15].flags & 0xff;
- int cc = qdio_err & 3;
QETH_DBF_TEXT(TRACE, 6, "hdsnderr");
qeth_check_qdio_errors(buffer->buffer, qdio_err, "qouterr");
- switch (cc) {
- case 0:
- if (qdio_err) {
- QETH_DBF_TEXT(TRACE, 1, "lnkfail");
- QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card));
- QETH_DBF_TEXT_(TRACE, 1, "%04x %02x",
- (u16)qdio_err, (u8)sbalf15);
- return QETH_SEND_ERROR_LINK_FAILURE;
- }
+
+ if (!qdio_err)
return QETH_SEND_ERROR_NONE;
- case 2:
- if (qdio_err & QDIO_ERROR_SIGA_BUSY) {
- QETH_DBF_TEXT(TRACE, 1, "SIGAcc2B");
- QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card));
- return QETH_SEND_ERROR_KICK_IT;
- }
- if ((sbalf15 >= 15) && (sbalf15 <= 31))
- return QETH_SEND_ERROR_RETRY;
- return QETH_SEND_ERROR_LINK_FAILURE;
- /* look at qdio_error and sbalf 15 */
- case 1:
- QETH_DBF_TEXT(TRACE, 1, "SIGAcc1");
- QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card));
- return QETH_SEND_ERROR_LINK_FAILURE;
- case 3:
- default:
- QETH_DBF_TEXT(TRACE, 1, "SIGAcc3");
- QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card));
- return QETH_SEND_ERROR_KICK_IT;
- }
+
+ if ((sbalf15 >= 15) && (sbalf15 <= 31))
+ return QETH_SEND_ERROR_RETRY;
+
+ QETH_DBF_TEXT(TRACE, 1, "lnkfail");
+ QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card));
+ QETH_DBF_TEXT_(TRACE, 1, "%04x %02x",
+ (u16)qdio_err, (u8)sbalf15);
+ return QETH_SEND_ERROR_LINK_FAILURE;
}
/*
qeth_get_micros() -
queue->card->perf_stats.outbound_do_qdio_start_time;
if (rc) {
+ queue->card->stats.tx_errors += count;
+ /* ignore temporary SIGA errors without busy condition */
+ if (rc == QDIO_ERROR_SIGA_TARGET)
+ return;
QETH_DBF_TEXT(TRACE, 2, "flushbuf");
QETH_DBF_TEXT_(TRACE, 2, " err%d", rc);
QETH_DBF_TEXT_(TRACE, 2, "%s", CARD_DDEV_ID(queue->card));
- queue->card->stats.tx_errors += count;
+
/* this must not happen under normal circumstances. if it
* happens something is really wrong -> recover */
qeth_schedule_recovery(queue->card);
}
for (i = first_element; i < (first_element + count); ++i) {
buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
- /*we only handle the KICK_IT error by doing a recovery */
- if (qeth_handle_send_error(card, buffer, qdio_error)
- == QETH_SEND_ERROR_KICK_IT){
- netif_stop_queue(card->dev);
- qeth_schedule_recovery(card);
- return;
- }
+ qeth_handle_send_error(card, buffer, qdio_error);
qeth_clear_output_buffer(queue, buffer);
}
atomic_sub(count, &queue->used_buffers);
+++ /dev/null
-/*
- * drivers/s390/s390mach.h
- * S/390 data definitions for machine check processing
- *
- * S390 version
- * Copyright (C) 2000 IBM Deutschland Entwicklung GmbH, IBM Corporation
- * Author(s): Ingo Adlung (adlung@de.ibm.com)
- */
-
-#ifndef __s390mach_h
-#define __s390mach_h
-
-#include <asm/types.h>
-
-struct mci {
- __u32 sd : 1; /* 00 system damage */
- __u32 pd : 1; /* 01 instruction-processing damage */
- __u32 sr : 1; /* 02 system recovery */
- __u32 to_be_defined_1 : 1; /* 03 */
- __u32 cd : 1; /* 04 timing-facility damage */
- __u32 ed : 1; /* 05 external damage */
- __u32 to_be_defined_2 : 1; /* 06 */
- __u32 dg : 1; /* 07 degradation */
- __u32 w : 1; /* 08 warning pending */
- __u32 cp : 1; /* 09 channel-report pending */
- __u32 sp : 1; /* 10 service-processor damage */
- __u32 ck : 1; /* 11 channel-subsystem damage */
- __u32 to_be_defined_3 : 2; /* 12-13 */
- __u32 b : 1; /* 14 backed up */
- __u32 to_be_defined_4 : 1; /* 15 */
- __u32 se : 1; /* 16 storage error uncorrected */
- __u32 sc : 1; /* 17 storage error corrected */
- __u32 ke : 1; /* 18 storage-key error uncorrected */
- __u32 ds : 1; /* 19 storage degradation */
- __u32 wp : 1; /* 20 psw mwp validity */
- __u32 ms : 1; /* 21 psw mask and key validity */
- __u32 pm : 1; /* 22 psw program mask and cc validity */
- __u32 ia : 1; /* 23 psw instruction address validity */
- __u32 fa : 1; /* 24 failing storage address validity */
- __u32 to_be_defined_5 : 1; /* 25 */
- __u32 ec : 1; /* 26 external damage code validity */
- __u32 fp : 1; /* 27 floating point register validity */
- __u32 gr : 1; /* 28 general register validity */
- __u32 cr : 1; /* 29 control register validity */
- __u32 to_be_defined_6 : 1; /* 30 */
- __u32 st : 1; /* 31 storage logical validity */
- __u32 ie : 1; /* 32 indirect storage error */
- __u32 ar : 1; /* 33 access register validity */
- __u32 da : 1; /* 34 delayed access exception */
- __u32 to_be_defined_7 : 7; /* 35-41 */
- __u32 pr : 1; /* 42 tod programmable register validity */
- __u32 fc : 1; /* 43 fp control register validity */
- __u32 ap : 1; /* 44 ancillary report */
- __u32 to_be_defined_8 : 1; /* 45 */
- __u32 ct : 1; /* 46 cpu timer validity */
- __u32 cc : 1; /* 47 clock comparator validity */
- __u32 to_be_defined_9 : 16; /* 47-63 */
-};
-
-/*
- * Channel Report Word
- */
-struct crw {
- __u32 res1 : 1; /* reserved zero */
- __u32 slct : 1; /* solicited */
- __u32 oflw : 1; /* overflow */
- __u32 chn : 1; /* chained */
- __u32 rsc : 4; /* reporting source code */
- __u32 anc : 1; /* ancillary report */
- __u32 res2 : 1; /* reserved zero */
- __u32 erc : 6; /* error-recovery code */
- __u32 rsid : 16; /* reporting-source ID */
-} __attribute__ ((packed));
-
-typedef void (*crw_handler_t)(struct crw *, struct crw *, int);
-
-extern int s390_register_crw_handler(int rsc, crw_handler_t handler);
-extern void s390_unregister_crw_handler(int rsc);
-
-#define NR_RSCS 16
-
-#define CRW_RSC_MONITOR 0x2 /* monitoring facility */
-#define CRW_RSC_SCH 0x3 /* subchannel */
-#define CRW_RSC_CPATH 0x4 /* channel path */
-#define CRW_RSC_CONFIG 0x9 /* configuration-alert facility */
-#define CRW_RSC_CSS 0xB /* channel subsystem */
-
-#define CRW_ERC_EVENT 0x00 /* event information pending */
-#define CRW_ERC_AVAIL 0x01 /* available */
-#define CRW_ERC_INIT 0x02 /* initialized */
-#define CRW_ERC_TERROR 0x03 /* temporary error */
-#define CRW_ERC_IPARM 0x04 /* installed parm initialized */
-#define CRW_ERC_TERM 0x05 /* terminal */
-#define CRW_ERC_PERRN 0x06 /* perm. error, fac. not init */
-#define CRW_ERC_PERRI 0x07 /* perm. error, facility init */
-#define CRW_ERC_PMOD 0x08 /* installed parameters modified */
-
-static inline int stcrw(struct crw *pcrw )
-{
- int ccode;
-
- __asm__ __volatile__(
- "stcrw 0(%2)\n\t"
- "ipm %0\n\t"
- "srl %0,28\n\t"
- : "=d" (ccode), "=m" (*pcrw)
- : "a" (pcrw)
- : "cc" );
- return ccode;
-}
-
-#define ED_ETR_SYNC 12 /* External damage ETR sync check */
-#define ED_ETR_SWITCH 13 /* External damage ETR switch to local */
-
-#define ED_STP_SYNC 7 /* External damage STP sync check */
-#define ED_STP_ISLAND 6 /* External damage STP island check */
-
-struct pt_regs;
-
-void s390_handle_mcck(void);
-void s390_do_machine_check(struct pt_regs *regs);
-#endif /* __s390mach */
* compute the block number from a
* cyl-cyl-head-head structure
*/
-static inline int
+static sector_t
cchh2blk (struct vtoc_cchh *ptr, struct hd_geometry *geo) {
- return ptr->cc * geo->heads * geo->sectors +
- ptr->hh * geo->sectors;
+
+ sector_t cyl;
+ __u16 head;
+
+ /*decode cylinder and heads for large volumes */
+ cyl = ptr->hh & 0xFFF0;
+ cyl <<= 12;
+ cyl |= ptr->cc;
+ head = ptr->hh & 0x000F;
+ return cyl * geo->heads * geo->sectors +
+ head * geo->sectors;
}
/*
* compute the block number from a
* cyl-cyl-head-head-block structure
*/
-static inline int
+static sector_t
cchhb2blk (struct vtoc_cchhb *ptr, struct hd_geometry *geo) {
- return ptr->cc * geo->heads * geo->sectors +
- ptr->hh * geo->sectors +
+
+ sector_t cyl;
+ __u16 head;
+
+ /*decode cylinder and heads for large volumes */
+ cyl = ptr->hh & 0xFFF0;
+ cyl <<= 12;
+ cyl |= ptr->cc;
+ head = ptr->hh & 0x000F;
+ return cyl * geo->heads * geo->sectors +
+ head * geo->sectors +
ptr->b;
}
int
ibm_partition(struct parsed_partitions *state, struct block_device *bdev)
{
- int blocksize, offset, size,res;
- loff_t i_size;
+ int blocksize, res;
+ loff_t i_size, offset, size, fmt_size;
dasd_information2_t *info;
struct hd_geometry *geo;
char type[5] = {0,};
char name[7] = {0,};
union label_t {
- struct vtoc_volume_label vol;
+ struct vtoc_volume_label_cdl vol;
+ struct vtoc_volume_label_ldl lnx;
struct vtoc_cms_label cms;
} *label;
unsigned char *data;
if (data == NULL)
goto out_readerr;
- strncpy (type, data, 4);
- if ((!info->FBA_layout) && (!strcmp(info->type, "ECKD")))
- strncpy(name, data + 8, 6);
- else
- strncpy(name, data + 4, 6);
memcpy(label, data, sizeof(union label_t));
put_dev_sector(sect);
+ if ((!info->FBA_layout) && (!strcmp(info->type, "ECKD"))) {
+ strncpy(type, label->vol.vollbl, 4);
+ strncpy(name, label->vol.volid, 6);
+ } else {
+ strncpy(type, label->lnx.vollbl, 4);
+ strncpy(name, label->lnx.volid, 6);
+ }
EBCASC(type, 4);
EBCASC(name, 6);
/*
* VM style CMS1 labeled disk
*/
+ blocksize = label->cms.block_size;
if (label->cms.disk_offset != 0) {
printk("CMS1/%8s(MDSK):", name);
/* disk is reserved minidisk */
- blocksize = label->cms.block_size;
offset = label->cms.disk_offset;
size = (label->cms.block_count - 1)
* (blocksize >> 9);
} else {
printk("CMS1/%8s:", name);
offset = (info->label_block + 1);
- size = i_size >> 9;
+ size = label->cms.block_count
+ * (blocksize >> 9);
}
+ put_partition(state, 1, offset*(blocksize >> 9),
+ size-offset*(blocksize >> 9));
} else {
- /*
- * Old style LNX1 or unlabeled disk
- */
- if (strncmp(type, "LNX1", 4) == 0)
- printk ("LNX1/%8s:", name);
- else
+ if (strncmp(type, "LNX1", 4) == 0) {
+ printk("LNX1/%8s:", name);
+ if (label->lnx.ldl_version == 0xf2) {
+ fmt_size = label->lnx.formatted_blocks
+ * (blocksize >> 9);
+ } else if (!strcmp(info->type, "ECKD")) {
+ /* formated w/o large volume support */
+ fmt_size = geo->cylinders * geo->heads
+ * geo->sectors * (blocksize >> 9);
+ } else {
+ /* old label and no usable disk geometry
+ * (e.g. DIAG) */
+ fmt_size = i_size >> 9;
+ }
+ size = i_size >> 9;
+ if (fmt_size < size)
+ size = fmt_size;
+ offset = (info->label_block + 1);
+ } else {
+ /* unlabeled disk */
printk("(nonl)");
- offset = (info->label_block + 1);
- size = i_size >> 9;
- }
- put_partition(state, 1, offset*(blocksize >> 9),
+ size = i_size >> 9;
+ offset = (info->label_block + 1);
+ }
+ put_partition(state, 1, offset*(blocksize >> 9),
size-offset*(blocksize >> 9));
+ }
} else if (info->format == DASD_FORMAT_CDL) {
/*
* New style CDL formatted disk
*/
- unsigned int blk;
+ sector_t blk;
int counter;
/*
/* skip FMT4 / FMT5 / FMT7 labels */
if (f1.DS1FMTID == _ascebc['4']
|| f1.DS1FMTID == _ascebc['5']
- || f1.DS1FMTID == _ascebc['7']) {
+ || f1.DS1FMTID == _ascebc['7']
+ || f1.DS1FMTID == _ascebc['9']) {
blk++;
data = read_dev_sector(bdev, blk *
(blocksize/512),
continue;
}
- /* only FMT1 valid at this point */
- if (f1.DS1FMTID != _ascebc['1'])
+ /* only FMT1 and 8 labels valid at this point */
+ if (f1.DS1FMTID != _ascebc['1'] &&
+ f1.DS1FMTID != _ascebc['8'])
break;
/* OK, we got valid partition data */
projects / linux-2.6-omap-h63xx.git / commitdiff