IB/ipath: Indicate a couple of chip bugs to userspace

[linux-2.6-omap-h63xx.git] / drivers / infiniband / hw / ipath / ipath_common.h

diff --git a/drivers/infiniband/hw/ipath/ipath_common.h b/drivers/infiniband/hw/ipath/ipath_common.h
index 54139d3981812a2ffdc78166d2dcf7722ea29b91..851df8a75e79cfc6ea5dc386530966f9a8c0206d 100644 (file)
--- a/drivers/infiniband/hw/ipath/ipath_common.h
+++ b/drivers/infiniband/hw/ipath/ipath_common.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006 QLogic, Inc. All rights reserved.
+ * Copyright (c) 2006, 2007 QLogic Corporation. All rights reserved.
  * Copyright (c) 2003, 2004, 2005, 2006 PathScale, Inc. All rights reserved.
  *
  * This software is available to you under a choice of one of two
@@ -78,6 +78,8 @@
 #define IPATH_IB_LINKINIT              3
 #define IPATH_IB_LINKDOWN_SLEEP                4
 #define IPATH_IB_LINKDOWN_DISABLE      5
+#define IPATH_IB_LINK_LOOPBACK 6 /* enable local loopback */
+#define IPATH_IB_LINK_EXTERNAL 7 /* normal, disable local loopback */
 
 /*
  * stats maintained by the driver.  For now, at least, this is global
@@ -98,8 +100,7 @@ struct infinipath_stats {
        __u64 sps_hwerrs;
        /* number of times IB link changed state unexpectedly */
        __u64 sps_iblink;
-       /* kernel receive interrupts that didn't read intstat */
-       __u64 sps_fastrcvint;
+       __u64 sps_unused; /* was fastrcvint, no longer implemented */
        /* number of kernel (port0) packets received */
        __u64 sps_port0pkts;
        /* number of "ethernet" packets sent by driver */
@@ -187,8 +188,9 @@ typedef enum _ipath_ureg {
 #define IPATH_RUNTIME_FORCE_WC_ORDER   0x4
 #define IPATH_RUNTIME_RCVHDR_COPY      0x8
 #define IPATH_RUNTIME_MASTER   0x10
-#define IPATH_RUNTIME_PBC_REWRITE 0x20
-#define IPATH_RUNTIME_LOOSE_DMA_ALIGN 0x40
+/* 0x20 and 0x40 are no longer used, but are reserved for ABI compatibility */
+#define IPATH_RUNTIME_FORCE_PIOAVAIL 0x400
+#define IPATH_RUNTIME_PIO_REGSWAPPED 0x800
 
 /*
  * This structure is returned by ipath_userinit() immediately after
@@ -316,11 +318,17 @@ struct ipath_base_info {
        /* address of readonly memory copy of the rcvhdrq tail register. */
        __u64 spi_rcvhdr_tailaddr;
 
-       /* shared memory pages for subports if IPATH_RUNTIME_MASTER is set */
+       /* shared memory pages for subports if port is shared */
        __u64 spi_subport_uregbase;
        __u64 spi_subport_rcvegrbuf;
        __u64 spi_subport_rcvhdr_base;
 
+       /* shared memory page for hardware port if it is shared */
+       __u64 spi_port_uregbase;
+       __u64 spi_port_rcvegrbuf;
+       __u64 spi_port_rcvhdr_base;
+       __u64 spi_port_rcvhdr_tailaddr;
+
 } __attribute__ ((aligned(8)));
 
 
@@ -344,7 +352,7 @@ struct ipath_base_info {
  * may not be implemented; the user code must deal with this if it
  * cares, or it must abort after initialization reports the difference.
  */
-#define IPATH_USER_SWMINOR 3
+#define IPATH_USER_SWMINOR 6
 
 #define IPATH_USER_SWVERSION ((IPATH_USER_SWMAJOR<<16) | IPATH_USER_SWMINOR)
 
@@ -418,11 +426,21 @@ struct ipath_user_info {
 #define IPATH_CMD_TID_UPDATE   19      /* update expected TID entries */
 #define IPATH_CMD_TID_FREE     20      /* free expected TID entries */
 #define IPATH_CMD_SET_PART_KEY 21      /* add partition key */
-#define IPATH_CMD_SLAVE_INFO   22      /* return info on slave processes */
+#define __IPATH_CMD_SLAVE_INFO 22      /* return info on slave processes (for old user code) */
 #define IPATH_CMD_ASSIGN_PORT  23      /* allocate HCA and port */
 #define IPATH_CMD_USER_INIT    24      /* set up userspace */
+#define IPATH_CMD_UNUSED_1     25
+#define IPATH_CMD_UNUSED_2     26
+#define IPATH_CMD_PIOAVAILUPD  27      /* force an update of PIOAvail reg */
+#define IPATH_CMD_POLL_TYPE    28      /* set the kind of polling we want */
+
+#define IPATH_CMD_MAX          28
 
-#define IPATH_CMD_MAX          24
+/*
+ * Poll types
+ */
+#define IPATH_POLL_TYPE_URGENT  0x01
+#define IPATH_POLL_TYPE_OVERFLOW 0x02
 
 struct ipath_port_info {
        __u32 num_active;       /* number of active units */
@@ -430,7 +448,7 @@ struct ipath_port_info {
        __u16 port;             /* port on unit assigned to caller */
        __u16 subport;          /* subport on unit assigned to caller */
        __u16 num_ports;        /* number of ports available on unit */
-       __u16 num_subports;     /* number of subport slaves opened on port */
+       __u16 num_subports;     /* number of subports opened on port */
 };
 
 struct ipath_tid_info {
@@ -463,6 +481,8 @@ struct ipath_cmd {
                __u16 part_key;
                /* user address of __u32 bitmask of active slaves */
                __u64 slave_mask_addr;
+               /* type of polling we want */
+               __u16 poll_type;
        } cmd;
 };
 
@@ -491,13 +511,30 @@ struct __ipath_sendpkt {
        struct ipath_iovec sps_iov[4];
 };
 
-/* Passed into diag data special file's ->write method. */
+/*
+ * diagnostics can send a packet by "writing" one of the following
+ * two structs to diag data special file
+ * The first is the legacy version for backward compatibility
+ */
 struct ipath_diag_pkt {
        __u32 unit;
        __u64 data;
        __u32 len;
 };
 
+/* The second diag_pkt struct is the expanded version that allows
+ * more control over the packet, specifically, by allowing a custom
+ * pbc (+ extra) qword, so that special modes and deliberate
+ * changes to CRCs can be used. The elements were also re-ordered
+ * for better alignment and to avoid padding issues.
+ */
+struct ipath_diag_xpkt {
+       __u64 data;
+       __u64 pbc_wd;
+       __u32 unit;
+       __u32 len;
+};
+
 /*
  * Data layout in I2C flash (for GUID, etc.)
  * All fields are little-endian binary unless otherwise stated