2 * This code is derived from the VIA reference driver (copyright message
3 * below) provided to Red Hat by VIA Networking Technologies, Inc. for
4 * addition to the Linux kernel.
6 * The code has been merged into one source file, cleaned up to follow
7 * Linux coding style, ported to the Linux 2.6 kernel tree and cleaned
8 * for 64bit hardware platforms.
11 * rx_copybreak/alignment
15 * The changes are (c) Copyright 2004, Red Hat Inc. <alan@redhat.com>
16 * Additional fixes and clean up: Francois Romieu
18 * This source has not been verified for use in safety critical systems.
20 * Please direct queries about the revamped driver to the linux-kernel
25 * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
26 * All rights reserved.
28 * This software may be redistributed and/or modified under
29 * the terms of the GNU General Public License as published by the Free
30 * Software Foundation; either version 2 of the License, or
33 * This program is distributed in the hope that it will be useful, but
34 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
35 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
38 * Author: Chuang Liang-Shing, AJ Jiang
42 * MODULE_LICENSE("GPL");
47 #include <linux/module.h>
48 #include <linux/types.h>
49 #include <linux/init.h>
51 #include <linux/errno.h>
52 #include <linux/ioport.h>
53 #include <linux/pci.h>
54 #include <linux/kernel.h>
55 #include <linux/netdevice.h>
56 #include <linux/etherdevice.h>
57 #include <linux/skbuff.h>
58 #include <linux/delay.h>
59 #include <linux/timer.h>
60 #include <linux/slab.h>
61 #include <linux/interrupt.h>
62 #include <linux/string.h>
63 #include <linux/wait.h>
66 #include <asm/uaccess.h>
67 #include <linux/proc_fs.h>
68 #include <linux/inetdevice.h>
69 #include <linux/reboot.h>
70 #include <linux/ethtool.h>
71 #include <linux/mii.h>
73 #include <linux/if_arp.h>
74 #include <linux/if_vlan.h>
76 #include <linux/tcp.h>
77 #include <linux/udp.h>
78 #include <linux/crc-ccitt.h>
79 #include <linux/crc32.h>
81 #include "via-velocity.h"
84 static int velocity_nics = 0;
85 static int msglevel = MSG_LEVEL_INFO;
88 * mac_get_cam_mask - Read a CAM mask
89 * @regs: register block for this velocity
90 * @mask: buffer to store mask
92 * Fetch the mask bits of the selected CAM and store them into the
93 * provided mask buffer.
96 static void mac_get_cam_mask(struct mac_regs __iomem * regs, u8 * mask)
100 /* Select CAM mask */
101 BYTE_REG_BITS_SET(CAMCR_PS_CAM_MASK, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR);
103 writeb(0, ®s->CAMADDR);
106 for (i = 0; i < 8; i++)
107 *mask++ = readb(&(regs->MARCAM[i]));
110 writeb(0, ®s->CAMADDR);
113 BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR);
119 * mac_set_cam_mask - Set a CAM mask
120 * @regs: register block for this velocity
121 * @mask: CAM mask to load
123 * Store a new mask into a CAM
126 static void mac_set_cam_mask(struct mac_regs __iomem * regs, u8 * mask)
129 /* Select CAM mask */
130 BYTE_REG_BITS_SET(CAMCR_PS_CAM_MASK, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR);
132 writeb(CAMADDR_CAMEN, ®s->CAMADDR);
134 for (i = 0; i < 8; i++) {
135 writeb(*mask++, &(regs->MARCAM[i]));
138 writeb(0, ®s->CAMADDR);
141 BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR);
144 static void mac_set_vlan_cam_mask(struct mac_regs __iomem * regs, u8 * mask)
147 /* Select CAM mask */
148 BYTE_REG_BITS_SET(CAMCR_PS_CAM_MASK, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR);
150 writeb(CAMADDR_CAMEN | CAMADDR_VCAMSL, ®s->CAMADDR);
152 for (i = 0; i < 8; i++) {
153 writeb(*mask++, &(regs->MARCAM[i]));
156 writeb(0, ®s->CAMADDR);
159 BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR);
163 * mac_set_cam - set CAM data
164 * @regs: register block of this velocity
166 * @addr: 2 or 6 bytes of CAM data
168 * Load an address or vlan tag into a CAM
171 static void mac_set_cam(struct mac_regs __iomem * regs, int idx, const u8 *addr)
175 /* Select CAM mask */
176 BYTE_REG_BITS_SET(CAMCR_PS_CAM_DATA, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR);
180 writeb(CAMADDR_CAMEN | idx, ®s->CAMADDR);
182 for (i = 0; i < 6; i++) {
183 writeb(*addr++, &(regs->MARCAM[i]));
185 BYTE_REG_BITS_ON(CAMCR_CAMWR, ®s->CAMCR);
189 writeb(0, ®s->CAMADDR);
192 BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR);
195 static void mac_set_vlan_cam(struct mac_regs __iomem * regs, int idx,
199 /* Select CAM mask */
200 BYTE_REG_BITS_SET(CAMCR_PS_CAM_DATA, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR);
204 writeb(CAMADDR_CAMEN | CAMADDR_VCAMSL | idx, ®s->CAMADDR);
205 writew(*((u16 *) addr), ®s->MARCAM[0]);
207 BYTE_REG_BITS_ON(CAMCR_CAMWR, ®s->CAMCR);
211 writeb(0, ®s->CAMADDR);
214 BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR);
219 * mac_wol_reset - reset WOL after exiting low power
220 * @regs: register block of this velocity
222 * Called after we drop out of wake on lan mode in order to
223 * reset the Wake on lan features. This function doesn't restore
224 * the rest of the logic from the result of sleep/wakeup
227 static void mac_wol_reset(struct mac_regs __iomem * regs)
230 /* Turn off SWPTAG right after leaving power mode */
231 BYTE_REG_BITS_OFF(STICKHW_SWPTAG, ®s->STICKHW);
232 /* clear sticky bits */
233 BYTE_REG_BITS_OFF((STICKHW_DS1 | STICKHW_DS0), ®s->STICKHW);
235 BYTE_REG_BITS_OFF(CHIPGCR_FCGMII, ®s->CHIPGCR);
236 BYTE_REG_BITS_OFF(CHIPGCR_FCMODE, ®s->CHIPGCR);
237 /* disable force PME-enable */
238 writeb(WOLCFG_PMEOVR, ®s->WOLCFGClr);
239 /* disable power-event config bit */
240 writew(0xFFFF, ®s->WOLCRClr);
241 /* clear power status */
242 writew(0xFFFF, ®s->WOLSRClr);
245 static int velocity_mii_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd);
246 static const struct ethtool_ops velocity_ethtool_ops;
249 Define module options
252 MODULE_AUTHOR("VIA Networking Technologies, Inc.");
253 MODULE_LICENSE("GPL");
254 MODULE_DESCRIPTION("VIA Networking Velocity Family Gigabit Ethernet Adapter Driver");
256 #define VELOCITY_PARAM(N,D) \
257 static int N[MAX_UNITS]=OPTION_DEFAULT;\
258 module_param_array(N, int, NULL, 0); \
259 MODULE_PARM_DESC(N, D);
261 #define RX_DESC_MIN 64
262 #define RX_DESC_MAX 255
263 #define RX_DESC_DEF 64
264 VELOCITY_PARAM(RxDescriptors, "Number of receive descriptors");
266 #define TX_DESC_MIN 16
267 #define TX_DESC_MAX 256
268 #define TX_DESC_DEF 64
269 VELOCITY_PARAM(TxDescriptors, "Number of transmit descriptors");
271 #define RX_THRESH_MIN 0
272 #define RX_THRESH_MAX 3
273 #define RX_THRESH_DEF 0
274 /* rx_thresh[] is used for controlling the receive fifo threshold.
275 0: indicate the rxfifo threshold is 128 bytes.
276 1: indicate the rxfifo threshold is 512 bytes.
277 2: indicate the rxfifo threshold is 1024 bytes.
278 3: indicate the rxfifo threshold is store & forward.
280 VELOCITY_PARAM(rx_thresh, "Receive fifo threshold");
282 #define DMA_LENGTH_MIN 0
283 #define DMA_LENGTH_MAX 7
284 #define DMA_LENGTH_DEF 0
286 /* DMA_length[] is used for controlling the DMA length
293 6: SF(flush till emply)
294 7: SF(flush till emply)
296 VELOCITY_PARAM(DMA_length, "DMA length");
298 #define IP_ALIG_DEF 0
299 /* IP_byte_align[] is used for IP header DWORD byte aligned
300 0: indicate the IP header won't be DWORD byte aligned.(Default) .
301 1: indicate the IP header will be DWORD byte aligned.
302 In some enviroment, the IP header should be DWORD byte aligned,
303 or the packet will be droped when we receive it. (eg: IPVS)
305 VELOCITY_PARAM(IP_byte_align, "Enable IP header dword aligned");
307 #define TX_CSUM_DEF 1
308 /* txcsum_offload[] is used for setting the checksum offload ability of NIC.
309 (We only support RX checksum offload now)
310 0: disable csum_offload[checksum offload
311 1: enable checksum offload. (Default)
313 VELOCITY_PARAM(txcsum_offload, "Enable transmit packet checksum offload");
315 #define FLOW_CNTL_DEF 1
316 #define FLOW_CNTL_MIN 1
317 #define FLOW_CNTL_MAX 5
319 /* flow_control[] is used for setting the flow control ability of NIC.
320 1: hardware deafult - AUTO (default). Use Hardware default value in ANAR.
321 2: enable TX flow control.
322 3: enable RX flow control.
323 4: enable RX/TX flow control.
326 VELOCITY_PARAM(flow_control, "Enable flow control ability");
328 #define MED_LNK_DEF 0
329 #define MED_LNK_MIN 0
330 #define MED_LNK_MAX 4
331 /* speed_duplex[] is used for setting the speed and duplex mode of NIC.
332 0: indicate autonegotiation for both speed and duplex mode
333 1: indicate 100Mbps half duplex mode
334 2: indicate 100Mbps full duplex mode
335 3: indicate 10Mbps half duplex mode
336 4: indicate 10Mbps full duplex mode
339 if EEPROM have been set to the force mode, this option is ignored
342 VELOCITY_PARAM(speed_duplex, "Setting the speed and duplex mode");
344 #define VAL_PKT_LEN_DEF 0
345 /* ValPktLen[] is used for setting the checksum offload ability of NIC.
346 0: Receive frame with invalid layer 2 length (Default)
347 1: Drop frame with invalid layer 2 length
349 VELOCITY_PARAM(ValPktLen, "Receiving or Drop invalid 802.3 frame");
351 #define WOL_OPT_DEF 0
352 #define WOL_OPT_MIN 0
353 #define WOL_OPT_MAX 7
354 /* wol_opts[] is used for controlling wake on lan behavior.
355 0: Wake up if recevied a magic packet. (Default)
356 1: Wake up if link status is on/off.
357 2: Wake up if recevied an arp packet.
358 4: Wake up if recevied any unicast packet.
359 Those value can be sumed up to support more than one option.
361 VELOCITY_PARAM(wol_opts, "Wake On Lan options");
363 #define INT_WORKS_DEF 20
364 #define INT_WORKS_MIN 10
365 #define INT_WORKS_MAX 64
367 VELOCITY_PARAM(int_works, "Number of packets per interrupt services");
369 static int rx_copybreak = 200;
370 module_param(rx_copybreak, int, 0644);
371 MODULE_PARM_DESC(rx_copybreak, "Copy breakpoint for copy-only-tiny-frames");
373 static void velocity_init_info(struct pci_dev *pdev, struct velocity_info *vptr,
374 const struct velocity_info_tbl *info);
375 static int velocity_get_pci_info(struct velocity_info *, struct pci_dev *pdev);
376 static void velocity_print_info(struct velocity_info *vptr);
377 static int velocity_open(struct net_device *dev);
378 static int velocity_change_mtu(struct net_device *dev, int mtu);
379 static int velocity_xmit(struct sk_buff *skb, struct net_device *dev);
380 static int velocity_intr(int irq, void *dev_instance);
381 static void velocity_set_multi(struct net_device *dev);
382 static struct net_device_stats *velocity_get_stats(struct net_device *dev);
383 static int velocity_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
384 static int velocity_close(struct net_device *dev);
385 static int velocity_receive_frame(struct velocity_info *, int idx);
386 static int velocity_alloc_rx_buf(struct velocity_info *, int idx);
387 static void velocity_free_rd_ring(struct velocity_info *vptr);
388 static void velocity_free_tx_buf(struct velocity_info *vptr, struct velocity_td_info *);
389 static int velocity_soft_reset(struct velocity_info *vptr);
390 static void mii_init(struct velocity_info *vptr, u32 mii_status);
391 static u32 velocity_get_link(struct net_device *dev);
392 static u32 velocity_get_opt_media_mode(struct velocity_info *vptr);
393 static void velocity_print_link_status(struct velocity_info *vptr);
394 static void safe_disable_mii_autopoll(struct mac_regs __iomem * regs);
395 static void velocity_shutdown(struct velocity_info *vptr);
396 static void enable_flow_control_ability(struct velocity_info *vptr);
397 static void enable_mii_autopoll(struct mac_regs __iomem * regs);
398 static int velocity_mii_read(struct mac_regs __iomem *, u8 byIdx, u16 * pdata);
399 static int velocity_mii_write(struct mac_regs __iomem *, u8 byMiiAddr, u16 data);
400 static u32 mii_check_media_mode(struct mac_regs __iomem * regs);
401 static u32 check_connection_type(struct mac_regs __iomem * regs);
402 static int velocity_set_media_mode(struct velocity_info *vptr, u32 mii_status);
406 static int velocity_suspend(struct pci_dev *pdev, pm_message_t state);
407 static int velocity_resume(struct pci_dev *pdev);
409 static DEFINE_SPINLOCK(velocity_dev_list_lock);
410 static LIST_HEAD(velocity_dev_list);
414 #if defined(CONFIG_PM) && defined(CONFIG_INET)
416 static int velocity_netdev_event(struct notifier_block *nb, unsigned long notification, void *ptr);
418 static struct notifier_block velocity_inetaddr_notifier = {
419 .notifier_call = velocity_netdev_event,
422 static void velocity_register_notifier(void)
424 register_inetaddr_notifier(&velocity_inetaddr_notifier);
427 static void velocity_unregister_notifier(void)
429 unregister_inetaddr_notifier(&velocity_inetaddr_notifier);
434 #define velocity_register_notifier() do {} while (0)
435 #define velocity_unregister_notifier() do {} while (0)
440 * Internal board variants. At the moment we have only one
443 static struct velocity_info_tbl chip_info_table[] = {
444 {CHIP_TYPE_VT6110, "VIA Networking Velocity Family Gigabit Ethernet Adapter", 1, 0x00FFFFFFUL},
449 * Describe the PCI device identifiers that we support in this
450 * device driver. Used for hotplug autoloading.
453 static const struct pci_device_id velocity_id_table[] __devinitdata = {
454 { PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_612X) },
458 MODULE_DEVICE_TABLE(pci, velocity_id_table);
461 * get_chip_name - identifier to name
462 * @id: chip identifier
464 * Given a chip identifier return a suitable description. Returns
465 * a pointer a static string valid while the driver is loaded.
468 static const char __devinit *get_chip_name(enum chip_type chip_id)
471 for (i = 0; chip_info_table[i].name != NULL; i++)
472 if (chip_info_table[i].chip_id == chip_id)
474 return chip_info_table[i].name;
478 * velocity_remove1 - device unplug
479 * @pdev: PCI device being removed
481 * Device unload callback. Called on an unplug or on module
482 * unload for each active device that is present. Disconnects
483 * the device from the network layer and frees all the resources
486 static void __devexit velocity_remove1(struct pci_dev *pdev)
488 struct net_device *dev = pci_get_drvdata(pdev);
489 struct velocity_info *vptr = netdev_priv(dev);
494 spin_lock_irqsave(&velocity_dev_list_lock, flags);
495 if (!list_empty(&velocity_dev_list))
496 list_del(&vptr->list);
497 spin_unlock_irqrestore(&velocity_dev_list_lock, flags);
499 unregister_netdev(dev);
500 iounmap(vptr->mac_regs);
501 pci_release_regions(pdev);
502 pci_disable_device(pdev);
503 pci_set_drvdata(pdev, NULL);
510 * velocity_set_int_opt - parser for integer options
511 * @opt: pointer to option value
512 * @val: value the user requested (or -1 for default)
513 * @min: lowest value allowed
514 * @max: highest value allowed
515 * @def: default value
516 * @name: property name
519 * Set an integer property in the module options. This function does
520 * all the verification and checking as well as reporting so that
521 * we don't duplicate code for each option.
524 static void __devinit velocity_set_int_opt(int *opt, int val, int min, int max, int def, char *name, char *devname)
528 else if (val < min || val > max) {
529 VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: the value of parameter %s is invalid, the valid range is (%d-%d)\n",
530 devname, name, min, max);
533 VELOCITY_PRT(MSG_LEVEL_INFO, KERN_INFO "%s: set value of parameter %s to %d\n",
540 * velocity_set_bool_opt - parser for boolean options
541 * @opt: pointer to option value
542 * @val: value the user requested (or -1 for default)
543 * @def: default value (yes/no)
544 * @flag: numeric value to set for true.
545 * @name: property name
548 * Set a boolean property in the module options. This function does
549 * all the verification and checking as well as reporting so that
550 * we don't duplicate code for each option.
553 static void __devinit velocity_set_bool_opt(u32 * opt, int val, int def, u32 flag, char *name, char *devname)
557 *opt |= (def ? flag : 0);
558 else if (val < 0 || val > 1) {
559 printk(KERN_NOTICE "%s: the value of parameter %s is invalid, the valid range is (0-1)\n",
561 *opt |= (def ? flag : 0);
563 printk(KERN_INFO "%s: set parameter %s to %s\n",
564 devname, name, val ? "TRUE" : "FALSE");
565 *opt |= (val ? flag : 0);
570 * velocity_get_options - set options on device
571 * @opts: option structure for the device
572 * @index: index of option to use in module options array
573 * @devname: device name
575 * Turn the module and command options into a single structure
576 * for the current device
579 static void __devinit velocity_get_options(struct velocity_opt *opts, int index, char *devname)
582 velocity_set_int_opt(&opts->rx_thresh, rx_thresh[index], RX_THRESH_MIN, RX_THRESH_MAX, RX_THRESH_DEF, "rx_thresh", devname);
583 velocity_set_int_opt(&opts->DMA_length, DMA_length[index], DMA_LENGTH_MIN, DMA_LENGTH_MAX, DMA_LENGTH_DEF, "DMA_length", devname);
584 velocity_set_int_opt(&opts->numrx, RxDescriptors[index], RX_DESC_MIN, RX_DESC_MAX, RX_DESC_DEF, "RxDescriptors", devname);
585 velocity_set_int_opt(&opts->numtx, TxDescriptors[index], TX_DESC_MIN, TX_DESC_MAX, TX_DESC_DEF, "TxDescriptors", devname);
587 velocity_set_bool_opt(&opts->flags, txcsum_offload[index], TX_CSUM_DEF, VELOCITY_FLAGS_TX_CSUM, "txcsum_offload", devname);
588 velocity_set_int_opt(&opts->flow_cntl, flow_control[index], FLOW_CNTL_MIN, FLOW_CNTL_MAX, FLOW_CNTL_DEF, "flow_control", devname);
589 velocity_set_bool_opt(&opts->flags, IP_byte_align[index], IP_ALIG_DEF, VELOCITY_FLAGS_IP_ALIGN, "IP_byte_align", devname);
590 velocity_set_bool_opt(&opts->flags, ValPktLen[index], VAL_PKT_LEN_DEF, VELOCITY_FLAGS_VAL_PKT_LEN, "ValPktLen", devname);
591 velocity_set_int_opt((int *) &opts->spd_dpx, speed_duplex[index], MED_LNK_MIN, MED_LNK_MAX, MED_LNK_DEF, "Media link mode", devname);
592 velocity_set_int_opt((int *) &opts->wol_opts, wol_opts[index], WOL_OPT_MIN, WOL_OPT_MAX, WOL_OPT_DEF, "Wake On Lan options", devname);
593 velocity_set_int_opt((int *) &opts->int_works, int_works[index], INT_WORKS_MIN, INT_WORKS_MAX, INT_WORKS_DEF, "Interrupt service works", devname);
594 opts->numrx = (opts->numrx & ~3);
598 * velocity_init_cam_filter - initialise CAM
599 * @vptr: velocity to program
601 * Initialize the content addressable memory used for filters. Load
602 * appropriately according to the presence of VLAN
605 static void velocity_init_cam_filter(struct velocity_info *vptr)
607 struct mac_regs __iomem * regs = vptr->mac_regs;
609 /* Turn on MCFG_PQEN, turn off MCFG_RTGOPT */
610 WORD_REG_BITS_SET(MCFG_PQEN, MCFG_RTGOPT, ®s->MCFG);
611 WORD_REG_BITS_ON(MCFG_VIDFR, ®s->MCFG);
613 /* Disable all CAMs */
614 memset(vptr->vCAMmask, 0, sizeof(u8) * 8);
615 memset(vptr->mCAMmask, 0, sizeof(u8) * 8);
616 mac_set_vlan_cam_mask(regs, vptr->vCAMmask);
617 mac_set_cam_mask(regs, vptr->mCAMmask);
621 unsigned int vid, i = 0;
623 if (!vlan_group_get_device(vptr->vlgrp, 0))
624 WORD_REG_BITS_ON(MCFG_RTGOPT, ®s->MCFG);
626 for (vid = 1; (vid < VLAN_VID_MASK); vid++) {
627 if (vlan_group_get_device(vptr->vlgrp, vid)) {
628 mac_set_vlan_cam(regs, i, (u8 *) &vid);
629 vptr->vCAMmask[i / 8] |= 0x1 << (i % 8);
630 if (++i >= VCAM_SIZE)
634 mac_set_vlan_cam_mask(regs, vptr->vCAMmask);
638 static void velocity_vlan_rx_register(struct net_device *dev,
639 struct vlan_group *grp)
641 struct velocity_info *vptr = netdev_priv(dev);
646 static void velocity_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
648 struct velocity_info *vptr = netdev_priv(dev);
650 spin_lock_irq(&vptr->lock);
651 velocity_init_cam_filter(vptr);
652 spin_unlock_irq(&vptr->lock);
655 static void velocity_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
657 struct velocity_info *vptr = netdev_priv(dev);
659 spin_lock_irq(&vptr->lock);
660 vlan_group_set_device(vptr->vlgrp, vid, NULL);
661 velocity_init_cam_filter(vptr);
662 spin_unlock_irq(&vptr->lock);
667 * velocity_rx_reset - handle a receive reset
668 * @vptr: velocity we are resetting
670 * Reset the ownership and status for the receive ring side.
671 * Hand all the receive queue to the NIC.
674 static void velocity_rx_reset(struct velocity_info *vptr)
677 struct mac_regs __iomem * regs = vptr->mac_regs;
680 vptr->rx.dirty = vptr->rx.filled = vptr->rx.curr = 0;
683 * Init state, all RD entries belong to the NIC
685 for (i = 0; i < vptr->options.numrx; ++i)
686 vptr->rx.ring[i].rdesc0.len |= OWNED_BY_NIC;
688 writew(vptr->options.numrx, ®s->RBRDU);
689 writel(vptr->rx.pool_dma, ®s->RDBaseLo);
690 writew(0, ®s->RDIdx);
691 writew(vptr->options.numrx - 1, ®s->RDCSize);
695 * velocity_init_registers - initialise MAC registers
696 * @vptr: velocity to init
697 * @type: type of initialisation (hot or cold)
699 * Initialise the MAC on a reset or on first set up on the
703 static void velocity_init_registers(struct velocity_info *vptr,
704 enum velocity_init_type type)
706 struct mac_regs __iomem * regs = vptr->mac_regs;
712 case VELOCITY_INIT_RESET:
713 case VELOCITY_INIT_WOL:
715 netif_stop_queue(vptr->dev);
718 * Reset RX to prevent RX pointer not on the 4X location
720 velocity_rx_reset(vptr);
721 mac_rx_queue_run(regs);
722 mac_rx_queue_wake(regs);
724 mii_status = velocity_get_opt_media_mode(vptr);
725 if (velocity_set_media_mode(vptr, mii_status) != VELOCITY_LINK_CHANGE) {
726 velocity_print_link_status(vptr);
727 if (!(vptr->mii_status & VELOCITY_LINK_FAIL))
728 netif_wake_queue(vptr->dev);
731 enable_flow_control_ability(vptr);
734 writel(CR0_STOP, ®s->CR0Clr);
735 writel((CR0_DPOLL | CR0_TXON | CR0_RXON | CR0_STRT),
740 case VELOCITY_INIT_COLD:
745 velocity_soft_reset(vptr);
748 mac_eeprom_reload(regs);
749 for (i = 0; i < 6; i++) {
750 writeb(vptr->dev->dev_addr[i], &(regs->PAR[i]));
753 * clear Pre_ACPI bit.
755 BYTE_REG_BITS_OFF(CFGA_PACPI, &(regs->CFGA));
756 mac_set_rx_thresh(regs, vptr->options.rx_thresh);
757 mac_set_dma_length(regs, vptr->options.DMA_length);
759 writeb(WOLCFG_SAM | WOLCFG_SAB, ®s->WOLCFGSet);
761 * Back off algorithm use original IEEE standard
763 BYTE_REG_BITS_SET(CFGB_OFSET, (CFGB_CRANDOM | CFGB_CAP | CFGB_MBA | CFGB_BAKOPT), ®s->CFGB);
768 velocity_init_cam_filter(vptr);
771 * Set packet filter: Receive directed and broadcast address
773 velocity_set_multi(vptr->dev);
776 * Enable MII auto-polling
778 enable_mii_autopoll(regs);
780 vptr->int_mask = INT_MASK_DEF;
782 writel(vptr->rx.pool_dma, ®s->RDBaseLo);
783 writew(vptr->options.numrx - 1, ®s->RDCSize);
784 mac_rx_queue_run(regs);
785 mac_rx_queue_wake(regs);
787 writew(vptr->options.numtx - 1, ®s->TDCSize);
789 for (i = 0; i < vptr->tx.numq; i++) {
790 writel(vptr->tx.pool_dma[i], ®s->TDBaseLo[i]);
791 mac_tx_queue_run(regs, i);
794 init_flow_control_register(vptr);
796 writel(CR0_STOP, ®s->CR0Clr);
797 writel((CR0_DPOLL | CR0_TXON | CR0_RXON | CR0_STRT), ®s->CR0Set);
799 mii_status = velocity_get_opt_media_mode(vptr);
800 netif_stop_queue(vptr->dev);
802 mii_init(vptr, mii_status);
804 if (velocity_set_media_mode(vptr, mii_status) != VELOCITY_LINK_CHANGE) {
805 velocity_print_link_status(vptr);
806 if (!(vptr->mii_status & VELOCITY_LINK_FAIL))
807 netif_wake_queue(vptr->dev);
810 enable_flow_control_ability(vptr);
811 mac_hw_mibs_init(regs);
812 mac_write_int_mask(vptr->int_mask, regs);
819 * velocity_soft_reset - soft reset
820 * @vptr: velocity to reset
822 * Kick off a soft reset of the velocity adapter and then poll
823 * until the reset sequence has completed before returning.
826 static int velocity_soft_reset(struct velocity_info *vptr)
828 struct mac_regs __iomem * regs = vptr->mac_regs;
831 writel(CR0_SFRST, ®s->CR0Set);
833 for (i = 0; i < W_MAX_TIMEOUT; i++) {
835 if (!DWORD_REG_BITS_IS_ON(CR0_SFRST, ®s->CR0Set))
839 if (i == W_MAX_TIMEOUT) {
840 writel(CR0_FORSRST, ®s->CR0Set);
841 /* FIXME: PCI POSTING */
849 * velocity_found1 - set up discovered velocity card
851 * @ent: PCI device table entry that matched
853 * Configure a discovered adapter from scratch. Return a negative
854 * errno error code on failure paths.
857 static int __devinit velocity_found1(struct pci_dev *pdev, const struct pci_device_id *ent)
859 static int first = 1;
860 struct net_device *dev;
862 const struct velocity_info_tbl *info = &chip_info_table[ent->driver_data];
863 struct velocity_info *vptr;
864 struct mac_regs __iomem * regs;
867 /* FIXME: this driver, like almost all other ethernet drivers,
868 * can support more than MAX_UNITS.
870 if (velocity_nics >= MAX_UNITS) {
871 dev_notice(&pdev->dev, "already found %d NICs.\n",
876 dev = alloc_etherdev(sizeof(struct velocity_info));
878 dev_err(&pdev->dev, "allocate net device failed.\n");
882 /* Chain it all together */
884 SET_NETDEV_DEV(dev, &pdev->dev);
885 vptr = netdev_priv(dev);
889 printk(KERN_INFO "%s Ver. %s\n",
890 VELOCITY_FULL_DRV_NAM, VELOCITY_VERSION);
891 printk(KERN_INFO "Copyright (c) 2002, 2003 VIA Networking Technologies, Inc.\n");
892 printk(KERN_INFO "Copyright (c) 2004 Red Hat Inc.\n");
896 velocity_init_info(pdev, vptr, info);
900 dev->irq = pdev->irq;
902 ret = pci_enable_device(pdev);
906 ret = velocity_get_pci_info(vptr, pdev);
908 /* error message already printed */
912 ret = pci_request_regions(pdev, VELOCITY_NAME);
914 dev_err(&pdev->dev, "No PCI resources.\n");
918 regs = ioremap(vptr->memaddr, VELOCITY_IO_SIZE);
921 goto err_release_res;
924 vptr->mac_regs = regs;
928 dev->base_addr = vptr->ioaddr;
930 for (i = 0; i < 6; i++)
931 dev->dev_addr[i] = readb(®s->PAR[i]);
934 velocity_get_options(&vptr->options, velocity_nics, dev->name);
937 * Mask out the options cannot be set to the chip
940 vptr->options.flags &= info->flags;
943 * Enable the chip specified capbilities
946 vptr->flags = vptr->options.flags | (info->flags & 0xFF000000UL);
948 vptr->wol_opts = vptr->options.wol_opts;
949 vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED;
951 vptr->phy_id = MII_GET_PHY_ID(vptr->mac_regs);
953 dev->irq = pdev->irq;
954 dev->open = velocity_open;
955 dev->hard_start_xmit = velocity_xmit;
956 dev->stop = velocity_close;
957 dev->get_stats = velocity_get_stats;
958 dev->set_multicast_list = velocity_set_multi;
959 dev->do_ioctl = velocity_ioctl;
960 dev->ethtool_ops = &velocity_ethtool_ops;
961 dev->change_mtu = velocity_change_mtu;
963 dev->vlan_rx_add_vid = velocity_vlan_rx_add_vid;
964 dev->vlan_rx_kill_vid = velocity_vlan_rx_kill_vid;
965 dev->vlan_rx_register = velocity_vlan_rx_register;
967 #ifdef VELOCITY_ZERO_COPY_SUPPORT
968 dev->features |= NETIF_F_SG;
970 dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_FILTER |
973 if (vptr->flags & VELOCITY_FLAGS_TX_CSUM)
974 dev->features |= NETIF_F_IP_CSUM;
976 ret = register_netdev(dev);
980 if (velocity_get_link(dev))
981 netif_carrier_off(dev);
983 velocity_print_info(vptr);
984 pci_set_drvdata(pdev, dev);
986 /* and leave the chip powered down */
988 pci_set_power_state(pdev, PCI_D3hot);
993 spin_lock_irqsave(&velocity_dev_list_lock, flags);
994 list_add(&vptr->list, &velocity_dev_list);
995 spin_unlock_irqrestore(&velocity_dev_list_lock, flags);
1005 pci_release_regions(pdev);
1007 pci_disable_device(pdev);
1014 * velocity_print_info - per driver data
1017 * Print per driver data as the kernel driver finds Velocity
1021 static void __devinit velocity_print_info(struct velocity_info *vptr)
1023 struct net_device *dev = vptr->dev;
1025 printk(KERN_INFO "%s: %s\n", dev->name, get_chip_name(vptr->chip_id));
1026 printk(KERN_INFO "%s: Ethernet Address: %2.2X:%2.2X:%2.2X:%2.2X:%2.2X:%2.2X\n",
1028 dev->dev_addr[0], dev->dev_addr[1], dev->dev_addr[2],
1029 dev->dev_addr[3], dev->dev_addr[4], dev->dev_addr[5]);
1033 * velocity_init_info - init private data
1035 * @vptr: Velocity info
1038 * Set up the initial velocity_info struct for the device that has been
1042 static void __devinit velocity_init_info(struct pci_dev *pdev,
1043 struct velocity_info *vptr,
1044 const struct velocity_info_tbl *info)
1046 memset(vptr, 0, sizeof(struct velocity_info));
1049 vptr->chip_id = info->chip_id;
1050 vptr->tx.numq = info->txqueue;
1051 vptr->multicast_limit = MCAM_SIZE;
1052 spin_lock_init(&vptr->lock);
1053 INIT_LIST_HEAD(&vptr->list);
1057 * velocity_get_pci_info - retrieve PCI info for device
1058 * @vptr: velocity device
1059 * @pdev: PCI device it matches
1061 * Retrieve the PCI configuration space data that interests us from
1062 * the kernel PCI layer
1065 static int __devinit velocity_get_pci_info(struct velocity_info *vptr, struct pci_dev *pdev)
1067 vptr->rev_id = pdev->revision;
1069 pci_set_master(pdev);
1071 vptr->ioaddr = pci_resource_start(pdev, 0);
1072 vptr->memaddr = pci_resource_start(pdev, 1);
1074 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_IO)) {
1076 "region #0 is not an I/O resource, aborting.\n");
1080 if ((pci_resource_flags(pdev, 1) & IORESOURCE_IO)) {
1082 "region #1 is an I/O resource, aborting.\n");
1086 if (pci_resource_len(pdev, 1) < VELOCITY_IO_SIZE) {
1087 dev_err(&pdev->dev, "region #1 is too small.\n");
1096 * velocity_init_rings - set up DMA rings
1097 * @vptr: Velocity to set up
1099 * Allocate PCI mapped DMA rings for the receive and transmit layer
1103 static int velocity_init_rings(struct velocity_info *vptr)
1105 struct velocity_opt *opt = &vptr->options;
1106 const unsigned int rx_ring_size = opt->numrx * sizeof(struct rx_desc);
1107 const unsigned int tx_ring_size = opt->numtx * sizeof(struct tx_desc);
1108 struct pci_dev *pdev = vptr->pdev;
1109 dma_addr_t pool_dma;
1114 * Allocate all RD/TD rings a single pool.
1116 * pci_alloc_consistent() fulfills the requirement for 64 bytes
1119 pool = pci_alloc_consistent(pdev, tx_ring_size * vptr->tx.numq +
1120 rx_ring_size, &pool_dma);
1122 dev_err(&pdev->dev, "%s : DMA memory allocation failed.\n",
1127 vptr->rx.ring = pool;
1128 vptr->rx.pool_dma = pool_dma;
1130 pool += rx_ring_size;
1131 pool_dma += rx_ring_size;
1133 for (i = 0; i < vptr->tx.numq; i++) {
1134 vptr->tx.rings[i] = pool;
1135 vptr->tx.pool_dma[i] = pool_dma;
1136 pool += tx_ring_size;
1137 pool_dma += tx_ring_size;
1144 * velocity_free_rings - free PCI ring pointers
1145 * @vptr: Velocity to free from
1147 * Clean up the PCI ring buffers allocated to this velocity.
1150 static void velocity_free_rings(struct velocity_info *vptr)
1152 const int size = vptr->options.numrx * sizeof(struct rx_desc) +
1153 vptr->options.numtx * sizeof(struct tx_desc) * vptr->tx.numq;
1155 pci_free_consistent(vptr->pdev, size, vptr->rx.ring, vptr->rx.pool_dma);
1158 static void velocity_give_many_rx_descs(struct velocity_info *vptr)
1160 struct mac_regs __iomem *regs = vptr->mac_regs;
1161 int avail, dirty, unusable;
1164 * RD number must be equal to 4X per hardware spec
1165 * (programming guide rev 1.20, p.13)
1167 if (vptr->rx.filled < 4)
1172 unusable = vptr->rx.filled & 0x0003;
1173 dirty = vptr->rx.dirty - unusable;
1174 for (avail = vptr->rx.filled & 0xfffc; avail; avail--) {
1175 dirty = (dirty > 0) ? dirty - 1 : vptr->options.numrx - 1;
1176 vptr->rx.ring[dirty].rdesc0.len |= OWNED_BY_NIC;
1179 writew(vptr->rx.filled & 0xfffc, ®s->RBRDU);
1180 vptr->rx.filled = unusable;
1183 static int velocity_rx_refill(struct velocity_info *vptr)
1185 int dirty = vptr->rx.dirty, done = 0;
1188 struct rx_desc *rd = vptr->rx.ring + dirty;
1190 /* Fine for an all zero Rx desc at init time as well */
1191 if (rd->rdesc0.len & OWNED_BY_NIC)
1194 if (!vptr->rx.info[dirty].skb) {
1195 if (velocity_alloc_rx_buf(vptr, dirty) < 0)
1199 dirty = (dirty < vptr->options.numrx - 1) ? dirty + 1 : 0;
1200 } while (dirty != vptr->rx.curr);
1203 vptr->rx.dirty = dirty;
1204 vptr->rx.filled += done;
1210 static void velocity_set_rxbufsize(struct velocity_info *vptr, int mtu)
1212 vptr->rx.buf_sz = (mtu <= ETH_DATA_LEN) ? PKT_BUF_SZ : mtu + 32;
1216 * velocity_init_rd_ring - set up receive ring
1217 * @vptr: velocity to configure
1219 * Allocate and set up the receive buffers for each ring slot and
1220 * assign them to the network adapter.
1223 static int velocity_init_rd_ring(struct velocity_info *vptr)
1227 vptr->rx.info = kcalloc(vptr->options.numrx,
1228 sizeof(struct velocity_rd_info), GFP_KERNEL);
1232 vptr->rx.filled = vptr->rx.dirty = vptr->rx.curr = 0;
1234 if (velocity_rx_refill(vptr) != vptr->options.numrx) {
1235 VELOCITY_PRT(MSG_LEVEL_ERR, KERN_ERR
1236 "%s: failed to allocate RX buffer.\n", vptr->dev->name);
1237 velocity_free_rd_ring(vptr);
1247 * velocity_free_rd_ring - free receive ring
1248 * @vptr: velocity to clean up
1250 * Free the receive buffers for each ring slot and any
1251 * attached socket buffers that need to go away.
1254 static void velocity_free_rd_ring(struct velocity_info *vptr)
1258 if (vptr->rx.info == NULL)
1261 for (i = 0; i < vptr->options.numrx; i++) {
1262 struct velocity_rd_info *rd_info = &(vptr->rx.info[i]);
1263 struct rx_desc *rd = vptr->rx.ring + i;
1265 memset(rd, 0, sizeof(*rd));
1269 pci_unmap_single(vptr->pdev, rd_info->skb_dma, vptr->rx.buf_sz,
1270 PCI_DMA_FROMDEVICE);
1271 rd_info->skb_dma = (dma_addr_t) NULL;
1273 dev_kfree_skb(rd_info->skb);
1274 rd_info->skb = NULL;
1277 kfree(vptr->rx.info);
1278 vptr->rx.info = NULL;
1282 * velocity_init_td_ring - set up transmit ring
1285 * Set up the transmit ring and chain the ring pointers together.
1286 * Returns zero on success or a negative posix errno code for
1290 static int velocity_init_td_ring(struct velocity_info *vptr)
1295 /* Init the TD ring entries */
1296 for (j = 0; j < vptr->tx.numq; j++) {
1297 curr = vptr->tx.pool_dma[j];
1299 vptr->tx.infos[j] = kcalloc(vptr->options.numtx,
1300 sizeof(struct velocity_td_info),
1302 if (!vptr->tx.infos[j]) {
1304 kfree(vptr->tx.infos[j]);
1308 vptr->tx.tail[j] = vptr->tx.curr[j] = vptr->tx.used[j] = 0;
1314 * FIXME: could we merge this with velocity_free_tx_buf ?
1317 static void velocity_free_td_ring_entry(struct velocity_info *vptr,
1320 struct velocity_td_info * td_info = &(vptr->tx.infos[q][n]);
1323 if (td_info == NULL)
1327 for (i = 0; i < td_info->nskb_dma; i++)
1329 if (td_info->skb_dma[i]) {
1330 pci_unmap_single(vptr->pdev, td_info->skb_dma[i],
1331 td_info->skb->len, PCI_DMA_TODEVICE);
1332 td_info->skb_dma[i] = (dma_addr_t) NULL;
1335 dev_kfree_skb(td_info->skb);
1336 td_info->skb = NULL;
1341 * velocity_free_td_ring - free td ring
1344 * Free up the transmit ring for this particular velocity adapter.
1345 * We free the ring contents but not the ring itself.
1348 static void velocity_free_td_ring(struct velocity_info *vptr)
1352 for (j = 0; j < vptr->tx.numq; j++) {
1353 if (vptr->tx.infos[j] == NULL)
1355 for (i = 0; i < vptr->options.numtx; i++) {
1356 velocity_free_td_ring_entry(vptr, j, i);
1359 kfree(vptr->tx.infos[j]);
1360 vptr->tx.infos[j] = NULL;
1365 * velocity_rx_srv - service RX interrupt
1367 * @status: adapter status (unused)
1369 * Walk the receive ring of the velocity adapter and remove
1370 * any received packets from the receive queue. Hand the ring
1371 * slots back to the adapter for reuse.
1374 static int velocity_rx_srv(struct velocity_info *vptr, int status)
1376 struct net_device_stats *stats = &vptr->stats;
1377 int rd_curr = vptr->rx.curr;
1381 struct rx_desc *rd = vptr->rx.ring + rd_curr;
1383 if (!vptr->rx.info[rd_curr].skb)
1386 if (rd->rdesc0.len & OWNED_BY_NIC)
1392 * Don't drop CE or RL error frame although RXOK is off
1394 if (rd->rdesc0.RSR & (RSR_RXOK | RSR_CE | RSR_RL)) {
1395 if (velocity_receive_frame(vptr, rd_curr) < 0)
1396 stats->rx_dropped++;
1398 if (rd->rdesc0.RSR & RSR_CRC)
1399 stats->rx_crc_errors++;
1400 if (rd->rdesc0.RSR & RSR_FAE)
1401 stats->rx_frame_errors++;
1403 stats->rx_dropped++;
1406 rd->size |= RX_INTEN;
1408 vptr->dev->last_rx = jiffies;
1411 if (rd_curr >= vptr->options.numrx)
1413 } while (++works <= 15);
1415 vptr->rx.curr = rd_curr;
1417 if ((works > 0) && (velocity_rx_refill(vptr) > 0))
1418 velocity_give_many_rx_descs(vptr);
1425 * velocity_rx_csum - checksum process
1426 * @rd: receive packet descriptor
1427 * @skb: network layer packet buffer
1429 * Process the status bits for the received packet and determine
1430 * if the checksum was computed and verified by the hardware
1433 static inline void velocity_rx_csum(struct rx_desc *rd, struct sk_buff *skb)
1435 skb->ip_summed = CHECKSUM_NONE;
1437 if (rd->rdesc1.CSM & CSM_IPKT) {
1438 if (rd->rdesc1.CSM & CSM_IPOK) {
1439 if ((rd->rdesc1.CSM & CSM_TCPKT) ||
1440 (rd->rdesc1.CSM & CSM_UDPKT)) {
1441 if (!(rd->rdesc1.CSM & CSM_TUPOK)) {
1445 skb->ip_summed = CHECKSUM_UNNECESSARY;
1451 * velocity_rx_copy - in place Rx copy for small packets
1452 * @rx_skb: network layer packet buffer candidate
1453 * @pkt_size: received data size
1454 * @rd: receive packet descriptor
1455 * @dev: network device
1457 * Replace the current skb that is scheduled for Rx processing by a
1458 * shorter, immediatly allocated skb, if the received packet is small
1459 * enough. This function returns a negative value if the received
1460 * packet is too big or if memory is exhausted.
1462 static int velocity_rx_copy(struct sk_buff **rx_skb, int pkt_size,
1463 struct velocity_info *vptr)
1466 if (pkt_size < rx_copybreak) {
1467 struct sk_buff *new_skb;
1469 new_skb = netdev_alloc_skb(vptr->dev, pkt_size + 2);
1471 new_skb->ip_summed = rx_skb[0]->ip_summed;
1472 skb_reserve(new_skb, 2);
1473 skb_copy_from_linear_data(*rx_skb, new_skb->data, pkt_size);
1483 * velocity_iph_realign - IP header alignment
1484 * @vptr: velocity we are handling
1485 * @skb: network layer packet buffer
1486 * @pkt_size: received data size
1488 * Align IP header on a 2 bytes boundary. This behavior can be
1489 * configured by the user.
1491 static inline void velocity_iph_realign(struct velocity_info *vptr,
1492 struct sk_buff *skb, int pkt_size)
1494 if (vptr->flags & VELOCITY_FLAGS_IP_ALIGN) {
1495 memmove(skb->data + 2, skb->data, pkt_size);
1496 skb_reserve(skb, 2);
1501 * velocity_receive_frame - received packet processor
1502 * @vptr: velocity we are handling
1505 * A packet has arrived. We process the packet and if appropriate
1506 * pass the frame up the network stack
1509 static int velocity_receive_frame(struct velocity_info *vptr, int idx)
1511 void (*pci_action)(struct pci_dev *, dma_addr_t, size_t, int);
1512 struct net_device_stats *stats = &vptr->stats;
1513 struct velocity_rd_info *rd_info = &(vptr->rx.info[idx]);
1514 struct rx_desc *rd = &(vptr->rx.ring[idx]);
1515 int pkt_len = le16_to_cpu(rd->rdesc0.len) & 0x3fff;
1516 struct sk_buff *skb;
1518 if (rd->rdesc0.RSR & (RSR_STP | RSR_EDP)) {
1519 VELOCITY_PRT(MSG_LEVEL_VERBOSE, KERN_ERR " %s : the received frame span multple RDs.\n", vptr->dev->name);
1520 stats->rx_length_errors++;
1524 if (rd->rdesc0.RSR & RSR_MAR)
1525 vptr->stats.multicast++;
1529 pci_dma_sync_single_for_cpu(vptr->pdev, rd_info->skb_dma,
1530 vptr->rx.buf_sz, PCI_DMA_FROMDEVICE);
1533 * Drop frame not meeting IEEE 802.3
1536 if (vptr->flags & VELOCITY_FLAGS_VAL_PKT_LEN) {
1537 if (rd->rdesc0.RSR & RSR_RL) {
1538 stats->rx_length_errors++;
1543 pci_action = pci_dma_sync_single_for_device;
1545 velocity_rx_csum(rd, skb);
1547 if (velocity_rx_copy(&skb, pkt_len, vptr) < 0) {
1548 velocity_iph_realign(vptr, skb, pkt_len);
1549 pci_action = pci_unmap_single;
1550 rd_info->skb = NULL;
1553 pci_action(vptr->pdev, rd_info->skb_dma, vptr->rx.buf_sz,
1554 PCI_DMA_FROMDEVICE);
1556 skb_put(skb, pkt_len - 4);
1557 skb->protocol = eth_type_trans(skb, vptr->dev);
1559 if (vptr->vlgrp && (rd->rdesc0.RSR & RSR_DETAG)) {
1560 vlan_hwaccel_rx(skb, vptr->vlgrp,
1561 swab16(le16_to_cpu(rd->rdesc1.PQTAG)));
1565 stats->rx_bytes += pkt_len;
1571 * velocity_alloc_rx_buf - allocate aligned receive buffer
1575 * Allocate a new full sized buffer for the reception of a frame and
1576 * map it into PCI space for the hardware to use. The hardware
1577 * requires *64* byte alignment of the buffer which makes life
1578 * less fun than would be ideal.
1581 static int velocity_alloc_rx_buf(struct velocity_info *vptr, int idx)
1583 struct rx_desc *rd = &(vptr->rx.ring[idx]);
1584 struct velocity_rd_info *rd_info = &(vptr->rx.info[idx]);
1586 rd_info->skb = dev_alloc_skb(vptr->rx.buf_sz + 64);
1587 if (rd_info->skb == NULL)
1591 * Do the gymnastics to get the buffer head for data at
1594 skb_reserve(rd_info->skb, (unsigned long) rd_info->skb->data & 63);
1595 rd_info->skb_dma = pci_map_single(vptr->pdev, rd_info->skb->data,
1596 vptr->rx.buf_sz, PCI_DMA_FROMDEVICE);
1599 * Fill in the descriptor to match
1602 *((u32 *) & (rd->rdesc0)) = 0;
1603 rd->size = cpu_to_le16(vptr->rx.buf_sz) | RX_INTEN;
1604 rd->pa_low = cpu_to_le32(rd_info->skb_dma);
1610 * tx_srv - transmit interrupt service
1614 * Scan the queues looking for transmitted packets that
1615 * we can complete and clean up. Update any statistics as
1619 static int velocity_tx_srv(struct velocity_info *vptr, u32 status)
1626 struct velocity_td_info *tdinfo;
1627 struct net_device_stats *stats = &vptr->stats;
1629 for (qnum = 0; qnum < vptr->tx.numq; qnum++) {
1630 for (idx = vptr->tx.tail[qnum]; vptr->tx.used[qnum] > 0;
1631 idx = (idx + 1) % vptr->options.numtx) {
1636 td = &(vptr->tx.rings[qnum][idx]);
1637 tdinfo = &(vptr->tx.infos[qnum][idx]);
1639 if (td->tdesc0.len & OWNED_BY_NIC)
1645 if (td->tdesc0.TSR & TSR0_TERR) {
1647 stats->tx_dropped++;
1648 if (td->tdesc0.TSR & TSR0_CDH)
1649 stats->tx_heartbeat_errors++;
1650 if (td->tdesc0.TSR & TSR0_CRS)
1651 stats->tx_carrier_errors++;
1652 if (td->tdesc0.TSR & TSR0_ABT)
1653 stats->tx_aborted_errors++;
1654 if (td->tdesc0.TSR & TSR0_OWC)
1655 stats->tx_window_errors++;
1657 stats->tx_packets++;
1658 stats->tx_bytes += tdinfo->skb->len;
1660 velocity_free_tx_buf(vptr, tdinfo);
1661 vptr->tx.used[qnum]--;
1663 vptr->tx.tail[qnum] = idx;
1665 if (AVAIL_TD(vptr, qnum) < 1) {
1670 * Look to see if we should kick the transmit network
1671 * layer for more work.
1673 if (netif_queue_stopped(vptr->dev) && (full == 0)
1674 && (!(vptr->mii_status & VELOCITY_LINK_FAIL))) {
1675 netif_wake_queue(vptr->dev);
1681 * velocity_print_link_status - link status reporting
1682 * @vptr: velocity to report on
1684 * Turn the link status of the velocity card into a kernel log
1685 * description of the new link state, detailing speed and duplex
1689 static void velocity_print_link_status(struct velocity_info *vptr)
1692 if (vptr->mii_status & VELOCITY_LINK_FAIL) {
1693 VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: failed to detect cable link\n", vptr->dev->name);
1694 } else if (vptr->options.spd_dpx == SPD_DPX_AUTO) {
1695 VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: Link auto-negotiation", vptr->dev->name);
1697 if (vptr->mii_status & VELOCITY_SPEED_1000)
1698 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 1000M bps");
1699 else if (vptr->mii_status & VELOCITY_SPEED_100)
1700 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 100M bps");
1702 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 10M bps");
1704 if (vptr->mii_status & VELOCITY_DUPLEX_FULL)
1705 VELOCITY_PRT(MSG_LEVEL_INFO, " full duplex\n");
1707 VELOCITY_PRT(MSG_LEVEL_INFO, " half duplex\n");
1709 VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: Link forced", vptr->dev->name);
1710 switch (vptr->options.spd_dpx) {
1711 case SPD_DPX_100_HALF:
1712 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 100M bps half duplex\n");
1714 case SPD_DPX_100_FULL:
1715 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 100M bps full duplex\n");
1717 case SPD_DPX_10_HALF:
1718 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 10M bps half duplex\n");
1720 case SPD_DPX_10_FULL:
1721 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 10M bps full duplex\n");
1730 * velocity_error - handle error from controller
1732 * @status: card status
1734 * Process an error report from the hardware and attempt to recover
1735 * the card itself. At the moment we cannot recover from some
1736 * theoretically impossible errors but this could be fixed using
1737 * the pci_device_failed logic to bounce the hardware
1741 static void velocity_error(struct velocity_info *vptr, int status)
1744 if (status & ISR_TXSTLI) {
1745 struct mac_regs __iomem * regs = vptr->mac_regs;
1747 printk(KERN_ERR "TD structure error TDindex=%hx\n", readw(®s->TDIdx[0]));
1748 BYTE_REG_BITS_ON(TXESR_TDSTR, ®s->TXESR);
1749 writew(TRDCSR_RUN, ®s->TDCSRClr);
1750 netif_stop_queue(vptr->dev);
1752 /* FIXME: port over the pci_device_failed code and use it
1756 if (status & ISR_SRCI) {
1757 struct mac_regs __iomem * regs = vptr->mac_regs;
1760 if (vptr->options.spd_dpx == SPD_DPX_AUTO) {
1761 vptr->mii_status = check_connection_type(regs);
1764 * If it is a 3119, disable frame bursting in
1765 * halfduplex mode and enable it in fullduplex
1768 if (vptr->rev_id < REV_ID_VT3216_A0) {
1769 if (vptr->mii_status | VELOCITY_DUPLEX_FULL)
1770 BYTE_REG_BITS_ON(TCR_TB2BDIS, ®s->TCR);
1772 BYTE_REG_BITS_OFF(TCR_TB2BDIS, ®s->TCR);
1775 * Only enable CD heart beat counter in 10HD mode
1777 if (!(vptr->mii_status & VELOCITY_DUPLEX_FULL) && (vptr->mii_status & VELOCITY_SPEED_10)) {
1778 BYTE_REG_BITS_OFF(TESTCFG_HBDIS, ®s->TESTCFG);
1780 BYTE_REG_BITS_ON(TESTCFG_HBDIS, ®s->TESTCFG);
1784 * Get link status from PHYSR0
1786 linked = readb(®s->PHYSR0) & PHYSR0_LINKGD;
1789 vptr->mii_status &= ~VELOCITY_LINK_FAIL;
1790 netif_carrier_on(vptr->dev);
1792 vptr->mii_status |= VELOCITY_LINK_FAIL;
1793 netif_carrier_off(vptr->dev);
1796 velocity_print_link_status(vptr);
1797 enable_flow_control_ability(vptr);
1800 * Re-enable auto-polling because SRCI will disable
1804 enable_mii_autopoll(regs);
1806 if (vptr->mii_status & VELOCITY_LINK_FAIL)
1807 netif_stop_queue(vptr->dev);
1809 netif_wake_queue(vptr->dev);
1812 if (status & ISR_MIBFI)
1813 velocity_update_hw_mibs(vptr);
1814 if (status & ISR_LSTEI)
1815 mac_rx_queue_wake(vptr->mac_regs);
1819 * velocity_free_tx_buf - free transmit buffer
1823 * Release an transmit buffer. If the buffer was preallocated then
1824 * recycle it, if not then unmap the buffer.
1827 static void velocity_free_tx_buf(struct velocity_info *vptr, struct velocity_td_info *tdinfo)
1829 struct sk_buff *skb = tdinfo->skb;
1833 * Don't unmap the pre-allocated tx_bufs
1835 if (tdinfo->skb_dma) {
1837 for (i = 0; i < tdinfo->nskb_dma; i++) {
1838 #ifdef VELOCITY_ZERO_COPY_SUPPORT
1839 pci_unmap_single(vptr->pdev, tdinfo->skb_dma[i], le16_to_cpu(td->tdesc1.len), PCI_DMA_TODEVICE);
1841 pci_unmap_single(vptr->pdev, tdinfo->skb_dma[i], skb->len, PCI_DMA_TODEVICE);
1843 tdinfo->skb_dma[i] = 0;
1846 dev_kfree_skb_irq(skb);
1851 * velocity_open - interface activation callback
1852 * @dev: network layer device to open
1854 * Called when the network layer brings the interface up. Returns
1855 * a negative posix error code on failure, or zero on success.
1857 * All the ring allocation and set up is done on open for this
1858 * adapter to minimise memory usage when inactive
1861 static int velocity_open(struct net_device *dev)
1863 struct velocity_info *vptr = netdev_priv(dev);
1866 velocity_set_rxbufsize(vptr, dev->mtu);
1868 ret = velocity_init_rings(vptr);
1872 ret = velocity_init_rd_ring(vptr);
1874 goto err_free_desc_rings;
1876 ret = velocity_init_td_ring(vptr);
1878 goto err_free_rd_ring;
1880 /* Ensure chip is running */
1881 pci_set_power_state(vptr->pdev, PCI_D0);
1883 velocity_give_many_rx_descs(vptr);
1885 velocity_init_registers(vptr, VELOCITY_INIT_COLD);
1887 ret = request_irq(vptr->pdev->irq, &velocity_intr, IRQF_SHARED,
1890 /* Power down the chip */
1891 pci_set_power_state(vptr->pdev, PCI_D3hot);
1892 goto err_free_td_ring;
1895 mac_enable_int(vptr->mac_regs);
1896 netif_start_queue(dev);
1897 vptr->flags |= VELOCITY_FLAGS_OPENED;
1902 velocity_free_td_ring(vptr);
1904 velocity_free_rd_ring(vptr);
1905 err_free_desc_rings:
1906 velocity_free_rings(vptr);
1911 * velocity_change_mtu - MTU change callback
1912 * @dev: network device
1913 * @new_mtu: desired MTU
1915 * Handle requests from the networking layer for MTU change on
1916 * this interface. It gets called on a change by the network layer.
1917 * Return zero for success or negative posix error code.
1920 static int velocity_change_mtu(struct net_device *dev, int new_mtu)
1922 struct velocity_info *vptr = netdev_priv(dev);
1923 unsigned long flags;
1924 int oldmtu = dev->mtu;
1927 if ((new_mtu < VELOCITY_MIN_MTU) || new_mtu > (VELOCITY_MAX_MTU)) {
1928 VELOCITY_PRT(MSG_LEVEL_ERR, KERN_NOTICE "%s: Invalid MTU.\n",
1933 if (!netif_running(dev)) {
1938 if (new_mtu != oldmtu) {
1939 spin_lock_irqsave(&vptr->lock, flags);
1941 netif_stop_queue(dev);
1942 velocity_shutdown(vptr);
1944 velocity_free_td_ring(vptr);
1945 velocity_free_rd_ring(vptr);
1949 velocity_set_rxbufsize(vptr, new_mtu);
1951 ret = velocity_init_rd_ring(vptr);
1955 ret = velocity_init_td_ring(vptr);
1959 velocity_init_registers(vptr, VELOCITY_INIT_COLD);
1961 mac_enable_int(vptr->mac_regs);
1962 netif_start_queue(dev);
1964 spin_unlock_irqrestore(&vptr->lock, flags);
1971 * velocity_shutdown - shut down the chip
1972 * @vptr: velocity to deactivate
1974 * Shuts down the internal operations of the velocity and
1975 * disables interrupts, autopolling, transmit and receive
1978 static void velocity_shutdown(struct velocity_info *vptr)
1980 struct mac_regs __iomem * regs = vptr->mac_regs;
1981 mac_disable_int(regs);
1982 writel(CR0_STOP, ®s->CR0Set);
1983 writew(0xFFFF, ®s->TDCSRClr);
1984 writeb(0xFF, ®s->RDCSRClr);
1985 safe_disable_mii_autopoll(regs);
1986 mac_clear_isr(regs);
1990 * velocity_close - close adapter callback
1991 * @dev: network device
1993 * Callback from the network layer when the velocity is being
1994 * deactivated by the network layer
1997 static int velocity_close(struct net_device *dev)
1999 struct velocity_info *vptr = netdev_priv(dev);
2001 netif_stop_queue(dev);
2002 velocity_shutdown(vptr);
2004 if (vptr->flags & VELOCITY_FLAGS_WOL_ENABLED)
2005 velocity_get_ip(vptr);
2007 free_irq(dev->irq, dev);
2009 /* Power down the chip */
2010 pci_set_power_state(vptr->pdev, PCI_D3hot);
2012 /* Free the resources */
2013 velocity_free_td_ring(vptr);
2014 velocity_free_rd_ring(vptr);
2015 velocity_free_rings(vptr);
2017 vptr->flags &= (~VELOCITY_FLAGS_OPENED);
2022 * velocity_xmit - transmit packet callback
2023 * @skb: buffer to transmit
2024 * @dev: network device
2026 * Called by the networ layer to request a packet is queued to
2027 * the velocity. Returns zero on success.
2030 static int velocity_xmit(struct sk_buff *skb, struct net_device *dev)
2032 struct velocity_info *vptr = netdev_priv(dev);
2034 struct tx_desc *td_ptr;
2035 struct velocity_td_info *tdinfo;
2036 unsigned long flags;
2037 int pktlen = skb->len;
2043 if (skb->len < ETH_ZLEN) {
2044 if (skb_padto(skb, ETH_ZLEN))
2049 len = cpu_to_le16(pktlen);
2051 #ifdef VELOCITY_ZERO_COPY_SUPPORT
2052 if (skb_shinfo(skb)->nr_frags > 6 && __skb_linearize(skb)) {
2058 spin_lock_irqsave(&vptr->lock, flags);
2060 index = vptr->tx.curr[qnum];
2061 td_ptr = &(vptr->tx.rings[qnum][index]);
2062 tdinfo = &(vptr->tx.infos[qnum][index]);
2064 td_ptr->tdesc1.TCR = TCR0_TIC;
2065 td_ptr->td_buf[0].size &= ~TD_QUEUE;
2067 #ifdef VELOCITY_ZERO_COPY_SUPPORT
2068 if (skb_shinfo(skb)->nr_frags > 0) {
2069 int nfrags = skb_shinfo(skb)->nr_frags;
2072 skb_copy_from_linear_data(skb, tdinfo->buf, skb->len);
2073 tdinfo->skb_dma[0] = tdinfo->buf_dma;
2074 td_ptr->tdesc0.len = len;
2075 td_ptr->tx.buf[0].pa_low = cpu_to_le32(tdinfo->skb_dma[0]);
2076 td_ptr->tx.buf[0].pa_high = 0;
2077 td_ptr->tx.buf[0].size = len; /* queue is 0 anyway */
2078 tdinfo->nskb_dma = 1;
2081 tdinfo->nskb_dma = 0;
2082 tdinfo->skb_dma[i] = pci_map_single(vptr->pdev, skb->data,
2083 skb_headlen(skb), PCI_DMA_TODEVICE);
2085 td_ptr->tdesc0.len = len;
2087 /* FIXME: support 48bit DMA later */
2088 td_ptr->tx.buf[i].pa_low = cpu_to_le32(tdinfo->skb_dma);
2089 td_ptr->tx.buf[i].pa_high = 0;
2090 td_ptr->tx.buf[i].size = cpu_to_le16(skb_headlen(skb));
2092 for (i = 0; i < nfrags; i++) {
2093 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
2094 void *addr = (void *)page_address(frag->page) + frag->page_offset;
2096 tdinfo->skb_dma[i + 1] = pci_map_single(vptr->pdev, addr, frag->size, PCI_DMA_TODEVICE);
2098 td_ptr->tx.buf[i + 1].pa_low = cpu_to_le32(tdinfo->skb_dma[i + 1]);
2099 td_ptr->tx.buf[i + 1].pa_high = 0;
2100 td_ptr->tx.buf[i + 1].size = cpu_to_le16(frag->size);
2102 tdinfo->nskb_dma = i - 1;
2109 * Map the linear network buffer into PCI space and
2110 * add it to the transmit ring.
2113 tdinfo->skb_dma[0] = pci_map_single(vptr->pdev, skb->data, pktlen, PCI_DMA_TODEVICE);
2114 td_ptr->tdesc0.len = len;
2115 td_ptr->td_buf[0].pa_low = cpu_to_le32(tdinfo->skb_dma[0]);
2116 td_ptr->td_buf[0].pa_high = 0;
2117 td_ptr->td_buf[0].size = len;
2118 tdinfo->nskb_dma = 1;
2120 td_ptr->tdesc1.cmd = TCPLS_NORMAL + (tdinfo->nskb_dma + 1) * 16;
2122 if (vptr->vlgrp && vlan_tx_tag_present(skb)) {
2123 td_ptr->tdesc1.vlan = cpu_to_le16(vlan_tx_tag_get(skb));
2124 td_ptr->tdesc1.TCR |= TCR0_VETAG;
2128 * Handle hardware checksum
2130 if ((vptr->flags & VELOCITY_FLAGS_TX_CSUM)
2131 && (skb->ip_summed == CHECKSUM_PARTIAL)) {
2132 const struct iphdr *ip = ip_hdr(skb);
2133 if (ip->protocol == IPPROTO_TCP)
2134 td_ptr->tdesc1.TCR |= TCR0_TCPCK;
2135 else if (ip->protocol == IPPROTO_UDP)
2136 td_ptr->tdesc1.TCR |= (TCR0_UDPCK);
2137 td_ptr->tdesc1.TCR |= TCR0_IPCK;
2141 int prev = index - 1;
2144 prev = vptr->options.numtx - 1;
2145 td_ptr->tdesc0.len |= OWNED_BY_NIC;
2146 vptr->tx.used[qnum]++;
2147 vptr->tx.curr[qnum] = (index + 1) % vptr->options.numtx;
2149 if (AVAIL_TD(vptr, qnum) < 1)
2150 netif_stop_queue(dev);
2152 td_ptr = &(vptr->tx.rings[qnum][prev]);
2153 td_ptr->td_buf[0].size |= TD_QUEUE;
2154 mac_tx_queue_wake(vptr->mac_regs, qnum);
2156 dev->trans_start = jiffies;
2157 spin_unlock_irqrestore(&vptr->lock, flags);
2159 return NETDEV_TX_OK;
2163 * velocity_intr - interrupt callback
2164 * @irq: interrupt number
2165 * @dev_instance: interrupting device
2167 * Called whenever an interrupt is generated by the velocity
2168 * adapter IRQ line. We may not be the source of the interrupt
2169 * and need to identify initially if we are, and if not exit as
2170 * efficiently as possible.
2173 static int velocity_intr(int irq, void *dev_instance)
2175 struct net_device *dev = dev_instance;
2176 struct velocity_info *vptr = netdev_priv(dev);
2181 spin_lock(&vptr->lock);
2182 isr_status = mac_read_isr(vptr->mac_regs);
2185 if (isr_status == 0) {
2186 spin_unlock(&vptr->lock);
2190 mac_disable_int(vptr->mac_regs);
2193 * Keep processing the ISR until we have completed
2194 * processing and the isr_status becomes zero
2197 while (isr_status != 0) {
2198 mac_write_isr(vptr->mac_regs, isr_status);
2199 if (isr_status & (~(ISR_PRXI | ISR_PPRXI | ISR_PTXI | ISR_PPTXI)))
2200 velocity_error(vptr, isr_status);
2201 if (isr_status & (ISR_PRXI | ISR_PPRXI))
2202 max_count += velocity_rx_srv(vptr, isr_status);
2203 if (isr_status & (ISR_PTXI | ISR_PPTXI))
2204 max_count += velocity_tx_srv(vptr, isr_status);
2205 isr_status = mac_read_isr(vptr->mac_regs);
2206 if (max_count > vptr->options.int_works)
2208 printk(KERN_WARNING "%s: excessive work at interrupt.\n",
2213 spin_unlock(&vptr->lock);
2214 mac_enable_int(vptr->mac_regs);
2221 * velocity_set_multi - filter list change callback
2222 * @dev: network device
2224 * Called by the network layer when the filter lists need to change
2225 * for a velocity adapter. Reload the CAMs with the new address
2229 static void velocity_set_multi(struct net_device *dev)
2231 struct velocity_info *vptr = netdev_priv(dev);
2232 struct mac_regs __iomem * regs = vptr->mac_regs;
2235 struct dev_mc_list *mclist;
2237 if (dev->flags & IFF_PROMISC) { /* Set promiscuous. */
2238 writel(0xffffffff, ®s->MARCAM[0]);
2239 writel(0xffffffff, ®s->MARCAM[4]);
2240 rx_mode = (RCR_AM | RCR_AB | RCR_PROM);
2241 } else if ((dev->mc_count > vptr->multicast_limit)
2242 || (dev->flags & IFF_ALLMULTI)) {
2243 writel(0xffffffff, ®s->MARCAM[0]);
2244 writel(0xffffffff, ®s->MARCAM[4]);
2245 rx_mode = (RCR_AM | RCR_AB);
2247 int offset = MCAM_SIZE - vptr->multicast_limit;
2248 mac_get_cam_mask(regs, vptr->mCAMmask);
2250 for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count; i++, mclist = mclist->next) {
2251 mac_set_cam(regs, i + offset, mclist->dmi_addr);
2252 vptr->mCAMmask[(offset + i) / 8] |= 1 << ((offset + i) & 7);
2255 mac_set_cam_mask(regs, vptr->mCAMmask);
2256 rx_mode = (RCR_AM | RCR_AB);
2258 if (dev->mtu > 1500)
2261 BYTE_REG_BITS_ON(rx_mode, ®s->RCR);
2266 * velocity_get_status - statistics callback
2267 * @dev: network device
2269 * Callback from the network layer to allow driver statistics
2270 * to be resynchronized with hardware collected state. In the
2271 * case of the velocity we need to pull the MIB counters from
2272 * the hardware into the counters before letting the network
2273 * layer display them.
2276 static struct net_device_stats *velocity_get_stats(struct net_device *dev)
2278 struct velocity_info *vptr = netdev_priv(dev);
2280 /* If the hardware is down, don't touch MII */
2281 if(!netif_running(dev))
2282 return &vptr->stats;
2284 spin_lock_irq(&vptr->lock);
2285 velocity_update_hw_mibs(vptr);
2286 spin_unlock_irq(&vptr->lock);
2288 vptr->stats.rx_packets = vptr->mib_counter[HW_MIB_ifRxAllPkts];
2289 vptr->stats.rx_errors = vptr->mib_counter[HW_MIB_ifRxErrorPkts];
2290 vptr->stats.rx_length_errors = vptr->mib_counter[HW_MIB_ifInRangeLengthErrors];
2292 // unsigned long rx_dropped; /* no space in linux buffers */
2293 vptr->stats.collisions = vptr->mib_counter[HW_MIB_ifTxEtherCollisions];
2294 /* detailed rx_errors: */
2295 // unsigned long rx_length_errors;
2296 // unsigned long rx_over_errors; /* receiver ring buff overflow */
2297 vptr->stats.rx_crc_errors = vptr->mib_counter[HW_MIB_ifRxPktCRCE];
2298 // unsigned long rx_frame_errors; /* recv'd frame alignment error */
2299 // unsigned long rx_fifo_errors; /* recv'r fifo overrun */
2300 // unsigned long rx_missed_errors; /* receiver missed packet */
2302 /* detailed tx_errors */
2303 // unsigned long tx_fifo_errors;
2305 return &vptr->stats;
2310 * velocity_ioctl - ioctl entry point
2311 * @dev: network device
2312 * @rq: interface request ioctl
2313 * @cmd: command code
2315 * Called when the user issues an ioctl request to the network
2316 * device in question. The velocity interface supports MII.
2319 static int velocity_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
2321 struct velocity_info *vptr = netdev_priv(dev);
2324 /* If we are asked for information and the device is power
2325 saving then we need to bring the device back up to talk to it */
2327 if (!netif_running(dev))
2328 pci_set_power_state(vptr->pdev, PCI_D0);
2331 case SIOCGMIIPHY: /* Get address of MII PHY in use. */
2332 case SIOCGMIIREG: /* Read MII PHY register. */
2333 case SIOCSMIIREG: /* Write to MII PHY register. */
2334 ret = velocity_mii_ioctl(dev, rq, cmd);
2340 if (!netif_running(dev))
2341 pci_set_power_state(vptr->pdev, PCI_D3hot);
2348 * Definition for our device driver. The PCI layer interface
2349 * uses this to handle all our card discover and plugging
2352 static struct pci_driver velocity_driver = {
2353 .name = VELOCITY_NAME,
2354 .id_table = velocity_id_table,
2355 .probe = velocity_found1,
2356 .remove = __devexit_p(velocity_remove1),
2358 .suspend = velocity_suspend,
2359 .resume = velocity_resume,
2364 * velocity_init_module - load time function
2366 * Called when the velocity module is loaded. The PCI driver
2367 * is registered with the PCI layer, and in turn will call
2368 * the probe functions for each velocity adapter installed
2372 static int __init velocity_init_module(void)
2376 velocity_register_notifier();
2377 ret = pci_register_driver(&velocity_driver);
2379 velocity_unregister_notifier();
2384 * velocity_cleanup - module unload
2386 * When the velocity hardware is unloaded this function is called.
2387 * It will clean up the notifiers and the unregister the PCI
2388 * driver interface for this hardware. This in turn cleans up
2389 * all discovered interfaces before returning from the function
2392 static void __exit velocity_cleanup_module(void)
2394 velocity_unregister_notifier();
2395 pci_unregister_driver(&velocity_driver);
2398 module_init(velocity_init_module);
2399 module_exit(velocity_cleanup_module);
2403 * MII access , media link mode setting functions
2408 * mii_init - set up MII
2409 * @vptr: velocity adapter
2410 * @mii_status: links tatus
2412 * Set up the PHY for the current link state.
2415 static void mii_init(struct velocity_info *vptr, u32 mii_status)
2419 switch (PHYID_GET_PHY_ID(vptr->phy_id)) {
2420 case PHYID_CICADA_CS8201:
2422 * Reset to hardware default
2424 MII_REG_BITS_OFF((ANAR_ASMDIR | ANAR_PAUSE), MII_REG_ANAR, vptr->mac_regs);
2426 * Turn on ECHODIS bit in NWay-forced full mode and turn it
2427 * off it in NWay-forced half mode for NWay-forced v.s.
2428 * legacy-forced issue.
2430 if (vptr->mii_status & VELOCITY_DUPLEX_FULL)
2431 MII_REG_BITS_ON(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs);
2433 MII_REG_BITS_OFF(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs);
2435 * Turn on Link/Activity LED enable bit for CIS8201
2437 MII_REG_BITS_ON(PLED_LALBE, MII_REG_PLED, vptr->mac_regs);
2439 case PHYID_VT3216_32BIT:
2440 case PHYID_VT3216_64BIT:
2442 * Reset to hardware default
2444 MII_REG_BITS_ON((ANAR_ASMDIR | ANAR_PAUSE), MII_REG_ANAR, vptr->mac_regs);
2446 * Turn on ECHODIS bit in NWay-forced full mode and turn it
2447 * off it in NWay-forced half mode for NWay-forced v.s.
2448 * legacy-forced issue
2450 if (vptr->mii_status & VELOCITY_DUPLEX_FULL)
2451 MII_REG_BITS_ON(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs);
2453 MII_REG_BITS_OFF(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs);
2456 case PHYID_MARVELL_1000:
2457 case PHYID_MARVELL_1000S:
2459 * Assert CRS on Transmit
2461 MII_REG_BITS_ON(PSCR_ACRSTX, MII_REG_PSCR, vptr->mac_regs);
2463 * Reset to hardware default
2465 MII_REG_BITS_ON((ANAR_ASMDIR | ANAR_PAUSE), MII_REG_ANAR, vptr->mac_regs);
2470 velocity_mii_read(vptr->mac_regs, MII_REG_BMCR, &BMCR);
2471 if (BMCR & BMCR_ISO) {
2473 velocity_mii_write(vptr->mac_regs, MII_REG_BMCR, BMCR);
2478 * safe_disable_mii_autopoll - autopoll off
2479 * @regs: velocity registers
2481 * Turn off the autopoll and wait for it to disable on the chip
2484 static void safe_disable_mii_autopoll(struct mac_regs __iomem * regs)
2488 /* turn off MAUTO */
2489 writeb(0, ®s->MIICR);
2490 for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
2492 if (BYTE_REG_BITS_IS_ON(MIISR_MIDLE, ®s->MIISR))
2498 * enable_mii_autopoll - turn on autopolling
2499 * @regs: velocity registers
2501 * Enable the MII link status autopoll feature on the Velocity
2502 * hardware. Wait for it to enable.
2505 static void enable_mii_autopoll(struct mac_regs __iomem * regs)
2509 writeb(0, &(regs->MIICR));
2510 writeb(MIIADR_SWMPL, ®s->MIIADR);
2512 for (ii = 0; ii < W_MAX_TIMEOUT; ii++) {
2514 if (BYTE_REG_BITS_IS_ON(MIISR_MIDLE, ®s->MIISR))
2518 writeb(MIICR_MAUTO, ®s->MIICR);
2520 for (ii = 0; ii < W_MAX_TIMEOUT; ii++) {
2522 if (!BYTE_REG_BITS_IS_ON(MIISR_MIDLE, ®s->MIISR))
2529 * velocity_mii_read - read MII data
2530 * @regs: velocity registers
2531 * @index: MII register index
2532 * @data: buffer for received data
2534 * Perform a single read of an MII 16bit register. Returns zero
2535 * on success or -ETIMEDOUT if the PHY did not respond.
2538 static int velocity_mii_read(struct mac_regs __iomem *regs, u8 index, u16 *data)
2543 * Disable MIICR_MAUTO, so that mii addr can be set normally
2545 safe_disable_mii_autopoll(regs);
2547 writeb(index, ®s->MIIADR);
2549 BYTE_REG_BITS_ON(MIICR_RCMD, ®s->MIICR);
2551 for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
2552 if (!(readb(®s->MIICR) & MIICR_RCMD))
2556 *data = readw(®s->MIIDATA);
2558 enable_mii_autopoll(regs);
2559 if (ww == W_MAX_TIMEOUT)
2565 * velocity_mii_write - write MII data
2566 * @regs: velocity registers
2567 * @index: MII register index
2568 * @data: 16bit data for the MII register
2570 * Perform a single write to an MII 16bit register. Returns zero
2571 * on success or -ETIMEDOUT if the PHY did not respond.
2574 static int velocity_mii_write(struct mac_regs __iomem *regs, u8 mii_addr, u16 data)
2579 * Disable MIICR_MAUTO, so that mii addr can be set normally
2581 safe_disable_mii_autopoll(regs);
2583 /* MII reg offset */
2584 writeb(mii_addr, ®s->MIIADR);
2586 writew(data, ®s->MIIDATA);
2588 /* turn on MIICR_WCMD */
2589 BYTE_REG_BITS_ON(MIICR_WCMD, ®s->MIICR);
2591 /* W_MAX_TIMEOUT is the timeout period */
2592 for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
2594 if (!(readb(®s->MIICR) & MIICR_WCMD))
2597 enable_mii_autopoll(regs);
2599 if (ww == W_MAX_TIMEOUT)
2605 * velocity_get_opt_media_mode - get media selection
2606 * @vptr: velocity adapter
2608 * Get the media mode stored in EEPROM or module options and load
2609 * mii_status accordingly. The requested link state information
2613 static u32 velocity_get_opt_media_mode(struct velocity_info *vptr)
2617 switch (vptr->options.spd_dpx) {
2619 status = VELOCITY_AUTONEG_ENABLE;
2621 case SPD_DPX_100_FULL:
2622 status = VELOCITY_SPEED_100 | VELOCITY_DUPLEX_FULL;
2624 case SPD_DPX_10_FULL:
2625 status = VELOCITY_SPEED_10 | VELOCITY_DUPLEX_FULL;
2627 case SPD_DPX_100_HALF:
2628 status = VELOCITY_SPEED_100;
2630 case SPD_DPX_10_HALF:
2631 status = VELOCITY_SPEED_10;
2634 vptr->mii_status = status;
2639 * mii_set_auto_on - autonegotiate on
2642 * Enable autonegotation on this interface
2645 static void mii_set_auto_on(struct velocity_info *vptr)
2647 if (MII_REG_BITS_IS_ON(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs))
2648 MII_REG_BITS_ON(BMCR_REAUTO, MII_REG_BMCR, vptr->mac_regs);
2650 MII_REG_BITS_ON(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs);
2655 static void mii_set_auto_off(struct velocity_info * vptr)
2657 MII_REG_BITS_OFF(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs);
2662 * set_mii_flow_control - flow control setup
2663 * @vptr: velocity interface
2665 * Set up the flow control on this interface according to
2666 * the supplied user/eeprom options.
2669 static void set_mii_flow_control(struct velocity_info *vptr)
2671 /*Enable or Disable PAUSE in ANAR */
2672 switch (vptr->options.flow_cntl) {
2674 MII_REG_BITS_OFF(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs);
2675 MII_REG_BITS_ON(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs);
2679 MII_REG_BITS_ON(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs);
2680 MII_REG_BITS_ON(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs);
2683 case FLOW_CNTL_TX_RX:
2684 MII_REG_BITS_ON(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs);
2685 MII_REG_BITS_ON(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs);
2688 case FLOW_CNTL_DISABLE:
2689 MII_REG_BITS_OFF(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs);
2690 MII_REG_BITS_OFF(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs);
2698 * velocity_set_media_mode - set media mode
2699 * @mii_status: old MII link state
2701 * Check the media link state and configure the flow control
2702 * PHY and also velocity hardware setup accordingly. In particular
2703 * we need to set up CD polling and frame bursting.
2706 static int velocity_set_media_mode(struct velocity_info *vptr, u32 mii_status)
2709 struct mac_regs __iomem * regs = vptr->mac_regs;
2711 vptr->mii_status = mii_check_media_mode(vptr->mac_regs);
2712 curr_status = vptr->mii_status & (~VELOCITY_LINK_FAIL);
2714 /* Set mii link status */
2715 set_mii_flow_control(vptr);
2718 Check if new status is consisent with current status
2719 if (((mii_status & curr_status) & VELOCITY_AUTONEG_ENABLE)
2720 || (mii_status==curr_status)) {
2721 vptr->mii_status=mii_check_media_mode(vptr->mac_regs);
2722 vptr->mii_status=check_connection_type(vptr->mac_regs);
2723 VELOCITY_PRT(MSG_LEVEL_INFO, "Velocity link no change\n");
2728 if (PHYID_GET_PHY_ID(vptr->phy_id) == PHYID_CICADA_CS8201) {
2729 MII_REG_BITS_ON(AUXCR_MDPPS, MII_REG_AUXCR, vptr->mac_regs);
2733 * If connection type is AUTO
2735 if (mii_status & VELOCITY_AUTONEG_ENABLE) {
2736 VELOCITY_PRT(MSG_LEVEL_INFO, "Velocity is AUTO mode\n");
2737 /* clear force MAC mode bit */
2738 BYTE_REG_BITS_OFF(CHIPGCR_FCMODE, ®s->CHIPGCR);
2739 /* set duplex mode of MAC according to duplex mode of MII */
2740 MII_REG_BITS_ON(ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10, MII_REG_ANAR, vptr->mac_regs);
2741 MII_REG_BITS_ON(G1000CR_1000FD | G1000CR_1000, MII_REG_G1000CR, vptr->mac_regs);
2742 MII_REG_BITS_ON(BMCR_SPEED1G, MII_REG_BMCR, vptr->mac_regs);
2744 /* enable AUTO-NEGO mode */
2745 mii_set_auto_on(vptr);
2751 * 1. if it's 3119, disable frame bursting in halfduplex mode
2752 * and enable it in fullduplex mode
2753 * 2. set correct MII/GMII and half/full duplex mode in CHIPGCR
2754 * 3. only enable CD heart beat counter in 10HD mode
2757 /* set force MAC mode bit */
2758 BYTE_REG_BITS_ON(CHIPGCR_FCMODE, ®s->CHIPGCR);
2760 CHIPGCR = readb(®s->CHIPGCR);
2761 CHIPGCR &= ~CHIPGCR_FCGMII;
2763 if (mii_status & VELOCITY_DUPLEX_FULL) {
2764 CHIPGCR |= CHIPGCR_FCFDX;
2765 writeb(CHIPGCR, ®s->CHIPGCR);
2766 VELOCITY_PRT(MSG_LEVEL_INFO, "set Velocity to forced full mode\n");
2767 if (vptr->rev_id < REV_ID_VT3216_A0)
2768 BYTE_REG_BITS_OFF(TCR_TB2BDIS, ®s->TCR);
2770 CHIPGCR &= ~CHIPGCR_FCFDX;
2771 VELOCITY_PRT(MSG_LEVEL_INFO, "set Velocity to forced half mode\n");
2772 writeb(CHIPGCR, ®s->CHIPGCR);
2773 if (vptr->rev_id < REV_ID_VT3216_A0)
2774 BYTE_REG_BITS_ON(TCR_TB2BDIS, ®s->TCR);
2777 MII_REG_BITS_OFF(G1000CR_1000FD | G1000CR_1000, MII_REG_G1000CR, vptr->mac_regs);
2779 if (!(mii_status & VELOCITY_DUPLEX_FULL) && (mii_status & VELOCITY_SPEED_10)) {
2780 BYTE_REG_BITS_OFF(TESTCFG_HBDIS, ®s->TESTCFG);
2782 BYTE_REG_BITS_ON(TESTCFG_HBDIS, ®s->TESTCFG);
2784 /* MII_REG_BITS_OFF(BMCR_SPEED1G, MII_REG_BMCR, vptr->mac_regs); */
2785 velocity_mii_read(vptr->mac_regs, MII_REG_ANAR, &ANAR);
2786 ANAR &= (~(ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10));
2787 if (mii_status & VELOCITY_SPEED_100) {
2788 if (mii_status & VELOCITY_DUPLEX_FULL)
2793 if (mii_status & VELOCITY_DUPLEX_FULL)
2798 velocity_mii_write(vptr->mac_regs, MII_REG_ANAR, ANAR);
2799 /* enable AUTO-NEGO mode */
2800 mii_set_auto_on(vptr);
2801 /* MII_REG_BITS_ON(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs); */
2803 /* vptr->mii_status=mii_check_media_mode(vptr->mac_regs); */
2804 /* vptr->mii_status=check_connection_type(vptr->mac_regs); */
2805 return VELOCITY_LINK_CHANGE;
2809 * mii_check_media_mode - check media state
2810 * @regs: velocity registers
2812 * Check the current MII status and determine the link status
2816 static u32 mii_check_media_mode(struct mac_regs __iomem * regs)
2821 if (!MII_REG_BITS_IS_ON(BMSR_LNK, MII_REG_BMSR, regs))
2822 status |= VELOCITY_LINK_FAIL;
2824 if (MII_REG_BITS_IS_ON(G1000CR_1000FD, MII_REG_G1000CR, regs))
2825 status |= VELOCITY_SPEED_1000 | VELOCITY_DUPLEX_FULL;
2826 else if (MII_REG_BITS_IS_ON(G1000CR_1000, MII_REG_G1000CR, regs))
2827 status |= (VELOCITY_SPEED_1000);
2829 velocity_mii_read(regs, MII_REG_ANAR, &ANAR);
2830 if (ANAR & ANAR_TXFD)
2831 status |= (VELOCITY_SPEED_100 | VELOCITY_DUPLEX_FULL);
2832 else if (ANAR & ANAR_TX)
2833 status |= VELOCITY_SPEED_100;
2834 else if (ANAR & ANAR_10FD)
2835 status |= (VELOCITY_SPEED_10 | VELOCITY_DUPLEX_FULL);
2837 status |= (VELOCITY_SPEED_10);
2840 if (MII_REG_BITS_IS_ON(BMCR_AUTO, MII_REG_BMCR, regs)) {
2841 velocity_mii_read(regs, MII_REG_ANAR, &ANAR);
2842 if ((ANAR & (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10))
2843 == (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10)) {
2844 if (MII_REG_BITS_IS_ON(G1000CR_1000 | G1000CR_1000FD, MII_REG_G1000CR, regs))
2845 status |= VELOCITY_AUTONEG_ENABLE;
2852 static u32 check_connection_type(struct mac_regs __iomem * regs)
2857 PHYSR0 = readb(®s->PHYSR0);
2860 if (!(PHYSR0 & PHYSR0_LINKGD))
2861 status|=VELOCITY_LINK_FAIL;
2864 if (PHYSR0 & PHYSR0_FDPX)
2865 status |= VELOCITY_DUPLEX_FULL;
2867 if (PHYSR0 & PHYSR0_SPDG)
2868 status |= VELOCITY_SPEED_1000;
2869 else if (PHYSR0 & PHYSR0_SPD10)
2870 status |= VELOCITY_SPEED_10;
2872 status |= VELOCITY_SPEED_100;
2874 if (MII_REG_BITS_IS_ON(BMCR_AUTO, MII_REG_BMCR, regs)) {
2875 velocity_mii_read(regs, MII_REG_ANAR, &ANAR);
2876 if ((ANAR & (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10))
2877 == (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10)) {
2878 if (MII_REG_BITS_IS_ON(G1000CR_1000 | G1000CR_1000FD, MII_REG_G1000CR, regs))
2879 status |= VELOCITY_AUTONEG_ENABLE;
2887 * enable_flow_control_ability - flow control
2888 * @vptr: veloity to configure
2890 * Set up flow control according to the flow control options
2891 * determined by the eeprom/configuration.
2894 static void enable_flow_control_ability(struct velocity_info *vptr)
2897 struct mac_regs __iomem * regs = vptr->mac_regs;
2899 switch (vptr->options.flow_cntl) {
2901 case FLOW_CNTL_DEFAULT:
2902 if (BYTE_REG_BITS_IS_ON(PHYSR0_RXFLC, ®s->PHYSR0))
2903 writel(CR0_FDXRFCEN, ®s->CR0Set);
2905 writel(CR0_FDXRFCEN, ®s->CR0Clr);
2907 if (BYTE_REG_BITS_IS_ON(PHYSR0_TXFLC, ®s->PHYSR0))
2908 writel(CR0_FDXTFCEN, ®s->CR0Set);
2910 writel(CR0_FDXTFCEN, ®s->CR0Clr);
2914 writel(CR0_FDXTFCEN, ®s->CR0Set);
2915 writel(CR0_FDXRFCEN, ®s->CR0Clr);
2919 writel(CR0_FDXRFCEN, ®s->CR0Set);
2920 writel(CR0_FDXTFCEN, ®s->CR0Clr);
2923 case FLOW_CNTL_TX_RX:
2924 writel(CR0_FDXTFCEN, ®s->CR0Set);
2925 writel(CR0_FDXRFCEN, ®s->CR0Set);
2928 case FLOW_CNTL_DISABLE:
2929 writel(CR0_FDXRFCEN, ®s->CR0Clr);
2930 writel(CR0_FDXTFCEN, ®s->CR0Clr);
2941 * velocity_ethtool_up - pre hook for ethtool
2942 * @dev: network device
2944 * Called before an ethtool operation. We need to make sure the
2945 * chip is out of D3 state before we poke at it.
2948 static int velocity_ethtool_up(struct net_device *dev)
2950 struct velocity_info *vptr = netdev_priv(dev);
2951 if (!netif_running(dev))
2952 pci_set_power_state(vptr->pdev, PCI_D0);
2957 * velocity_ethtool_down - post hook for ethtool
2958 * @dev: network device
2960 * Called after an ethtool operation. Restore the chip back to D3
2961 * state if it isn't running.
2964 static void velocity_ethtool_down(struct net_device *dev)
2966 struct velocity_info *vptr = netdev_priv(dev);
2967 if (!netif_running(dev))
2968 pci_set_power_state(vptr->pdev, PCI_D3hot);
2971 static int velocity_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
2973 struct velocity_info *vptr = netdev_priv(dev);
2974 struct mac_regs __iomem * regs = vptr->mac_regs;
2976 status = check_connection_type(vptr->mac_regs);
2978 cmd->supported = SUPPORTED_TP |
2980 SUPPORTED_10baseT_Half |
2981 SUPPORTED_10baseT_Full |
2982 SUPPORTED_100baseT_Half |
2983 SUPPORTED_100baseT_Full |
2984 SUPPORTED_1000baseT_Half |
2985 SUPPORTED_1000baseT_Full;
2986 if (status & VELOCITY_SPEED_1000)
2987 cmd->speed = SPEED_1000;
2988 else if (status & VELOCITY_SPEED_100)
2989 cmd->speed = SPEED_100;
2991 cmd->speed = SPEED_10;
2992 cmd->autoneg = (status & VELOCITY_AUTONEG_ENABLE) ? AUTONEG_ENABLE : AUTONEG_DISABLE;
2993 cmd->port = PORT_TP;
2994 cmd->transceiver = XCVR_INTERNAL;
2995 cmd->phy_address = readb(®s->MIIADR) & 0x1F;
2997 if (status & VELOCITY_DUPLEX_FULL)
2998 cmd->duplex = DUPLEX_FULL;
3000 cmd->duplex = DUPLEX_HALF;
3005 static int velocity_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
3007 struct velocity_info *vptr = netdev_priv(dev);
3012 curr_status = check_connection_type(vptr->mac_regs);
3013 curr_status &= (~VELOCITY_LINK_FAIL);
3015 new_status |= ((cmd->autoneg) ? VELOCITY_AUTONEG_ENABLE : 0);
3016 new_status |= ((cmd->speed == SPEED_100) ? VELOCITY_SPEED_100 : 0);
3017 new_status |= ((cmd->speed == SPEED_10) ? VELOCITY_SPEED_10 : 0);
3018 new_status |= ((cmd->duplex == DUPLEX_FULL) ? VELOCITY_DUPLEX_FULL : 0);
3020 if ((new_status & VELOCITY_AUTONEG_ENABLE) && (new_status != (curr_status | VELOCITY_AUTONEG_ENABLE)))
3023 velocity_set_media_mode(vptr, new_status);
3028 static u32 velocity_get_link(struct net_device *dev)
3030 struct velocity_info *vptr = netdev_priv(dev);
3031 struct mac_regs __iomem * regs = vptr->mac_regs;
3032 return BYTE_REG_BITS_IS_ON(PHYSR0_LINKGD, ®s->PHYSR0) ? 1 : 0;
3035 static void velocity_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
3037 struct velocity_info *vptr = netdev_priv(dev);
3038 strcpy(info->driver, VELOCITY_NAME);
3039 strcpy(info->version, VELOCITY_VERSION);
3040 strcpy(info->bus_info, pci_name(vptr->pdev));
3043 static void velocity_ethtool_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
3045 struct velocity_info *vptr = netdev_priv(dev);
3046 wol->supported = WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_ARP;
3047 wol->wolopts |= WAKE_MAGIC;
3049 if (vptr->wol_opts & VELOCITY_WOL_PHY)
3050 wol.wolopts|=WAKE_PHY;
3052 if (vptr->wol_opts & VELOCITY_WOL_UCAST)
3053 wol->wolopts |= WAKE_UCAST;
3054 if (vptr->wol_opts & VELOCITY_WOL_ARP)
3055 wol->wolopts |= WAKE_ARP;
3056 memcpy(&wol->sopass, vptr->wol_passwd, 6);
3059 static int velocity_ethtool_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
3061 struct velocity_info *vptr = netdev_priv(dev);
3063 if (!(wol->wolopts & (WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_ARP)))
3065 vptr->wol_opts = VELOCITY_WOL_MAGIC;
3068 if (wol.wolopts & WAKE_PHY) {
3069 vptr->wol_opts|=VELOCITY_WOL_PHY;
3070 vptr->flags |=VELOCITY_FLAGS_WOL_ENABLED;
3074 if (wol->wolopts & WAKE_MAGIC) {
3075 vptr->wol_opts |= VELOCITY_WOL_MAGIC;
3076 vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED;
3078 if (wol->wolopts & WAKE_UCAST) {
3079 vptr->wol_opts |= VELOCITY_WOL_UCAST;
3080 vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED;
3082 if (wol->wolopts & WAKE_ARP) {
3083 vptr->wol_opts |= VELOCITY_WOL_ARP;
3084 vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED;
3086 memcpy(vptr->wol_passwd, wol->sopass, 6);
3090 static u32 velocity_get_msglevel(struct net_device *dev)
3095 static void velocity_set_msglevel(struct net_device *dev, u32 value)
3100 static const struct ethtool_ops velocity_ethtool_ops = {
3101 .get_settings = velocity_get_settings,
3102 .set_settings = velocity_set_settings,
3103 .get_drvinfo = velocity_get_drvinfo,
3104 .get_wol = velocity_ethtool_get_wol,
3105 .set_wol = velocity_ethtool_set_wol,
3106 .get_msglevel = velocity_get_msglevel,
3107 .set_msglevel = velocity_set_msglevel,
3108 .get_link = velocity_get_link,
3109 .begin = velocity_ethtool_up,
3110 .complete = velocity_ethtool_down
3114 * velocity_mii_ioctl - MII ioctl handler
3115 * @dev: network device
3116 * @ifr: the ifreq block for the ioctl
3119 * Process MII requests made via ioctl from the network layer. These
3120 * are used by tools like kudzu to interrogate the link state of the
3124 static int velocity_mii_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
3126 struct velocity_info *vptr = netdev_priv(dev);
3127 struct mac_regs __iomem * regs = vptr->mac_regs;
3128 unsigned long flags;
3129 struct mii_ioctl_data *miidata = if_mii(ifr);
3134 miidata->phy_id = readb(®s->MIIADR) & 0x1f;
3137 if (!capable(CAP_NET_ADMIN))
3139 if(velocity_mii_read(vptr->mac_regs, miidata->reg_num & 0x1f, &(miidata->val_out)) < 0)
3143 if (!capable(CAP_NET_ADMIN))
3145 spin_lock_irqsave(&vptr->lock, flags);
3146 err = velocity_mii_write(vptr->mac_regs, miidata->reg_num & 0x1f, miidata->val_in);
3147 spin_unlock_irqrestore(&vptr->lock, flags);
3148 check_connection_type(vptr->mac_regs);
3161 * velocity_save_context - save registers
3163 * @context: buffer for stored context
3165 * Retrieve the current configuration from the velocity hardware
3166 * and stash it in the context structure, for use by the context
3167 * restore functions. This allows us to save things we need across
3171 static void velocity_save_context(struct velocity_info *vptr, struct velocity_context * context)
3173 struct mac_regs __iomem * regs = vptr->mac_regs;
3175 u8 __iomem *ptr = (u8 __iomem *)regs;
3177 for (i = MAC_REG_PAR; i < MAC_REG_CR0_CLR; i += 4)
3178 *((u32 *) (context->mac_reg + i)) = readl(ptr + i);
3180 for (i = MAC_REG_MAR; i < MAC_REG_TDCSR_CLR; i += 4)
3181 *((u32 *) (context->mac_reg + i)) = readl(ptr + i);
3183 for (i = MAC_REG_RDBASE_LO; i < MAC_REG_FIFO_TEST0; i += 4)
3184 *((u32 *) (context->mac_reg + i)) = readl(ptr + i);
3189 * velocity_restore_context - restore registers
3191 * @context: buffer for stored context
3193 * Reload the register configuration from the velocity context
3194 * created by velocity_save_context.
3197 static void velocity_restore_context(struct velocity_info *vptr, struct velocity_context *context)
3199 struct mac_regs __iomem * regs = vptr->mac_regs;
3201 u8 __iomem *ptr = (u8 __iomem *)regs;
3203 for (i = MAC_REG_PAR; i < MAC_REG_CR0_SET; i += 4) {
3204 writel(*((u32 *) (context->mac_reg + i)), ptr + i);
3208 for (i = MAC_REG_CR1_SET; i < MAC_REG_CR0_CLR; i++) {
3210 writeb(~(*((u8 *) (context->mac_reg + i))), ptr + i + 4);
3212 writeb(*((u8 *) (context->mac_reg + i)), ptr + i);
3215 for (i = MAC_REG_MAR; i < MAC_REG_IMR; i += 4) {
3216 writel(*((u32 *) (context->mac_reg + i)), ptr + i);
3219 for (i = MAC_REG_RDBASE_LO; i < MAC_REG_FIFO_TEST0; i += 4) {
3220 writel(*((u32 *) (context->mac_reg + i)), ptr + i);
3223 for (i = MAC_REG_TDCSR_SET; i <= MAC_REG_RDCSR_SET; i++) {
3224 writeb(*((u8 *) (context->mac_reg + i)), ptr + i);
3230 * wol_calc_crc - WOL CRC
3231 * @pattern: data pattern
3232 * @mask_pattern: mask
3234 * Compute the wake on lan crc hashes for the packet header
3235 * we are interested in.
3238 static u16 wol_calc_crc(int size, u8 * pattern, u8 *mask_pattern)
3244 for (i = 0; i < size; i++) {
3245 mask = mask_pattern[i];
3247 /* Skip this loop if the mask equals to zero */
3251 for (j = 0; j < 8; j++) {
3252 if ((mask & 0x01) == 0) {
3257 crc = crc_ccitt(crc, &(pattern[i * 8 + j]), 1);
3260 /* Finally, invert the result once to get the correct data */
3262 return bitrev32(crc) >> 16;
3266 * velocity_set_wol - set up for wake on lan
3267 * @vptr: velocity to set WOL status on
3269 * Set a card up for wake on lan either by unicast or by
3272 * FIXME: check static buffer is safe here
3275 static int velocity_set_wol(struct velocity_info *vptr)
3277 struct mac_regs __iomem * regs = vptr->mac_regs;
3281 static u32 mask_pattern[2][4] = {
3282 {0x00203000, 0x000003C0, 0x00000000, 0x0000000}, /* ARP */
3283 {0xfffff000, 0xffffffff, 0xffffffff, 0x000ffff} /* Magic Packet */
3286 writew(0xFFFF, ®s->WOLCRClr);
3287 writeb(WOLCFG_SAB | WOLCFG_SAM, ®s->WOLCFGSet);
3288 writew(WOLCR_MAGIC_EN, ®s->WOLCRSet);
3291 if (vptr->wol_opts & VELOCITY_WOL_PHY)
3292 writew((WOLCR_LINKON_EN|WOLCR_LINKOFF_EN), ®s->WOLCRSet);
3295 if (vptr->wol_opts & VELOCITY_WOL_UCAST) {
3296 writew(WOLCR_UNICAST_EN, ®s->WOLCRSet);
3299 if (vptr->wol_opts & VELOCITY_WOL_ARP) {
3300 struct arp_packet *arp = (struct arp_packet *) buf;
3302 memset(buf, 0, sizeof(struct arp_packet) + 7);
3304 for (i = 0; i < 4; i++)
3305 writel(mask_pattern[0][i], ®s->ByteMask[0][i]);
3307 arp->type = htons(ETH_P_ARP);
3308 arp->ar_op = htons(1);
3310 memcpy(arp->ar_tip, vptr->ip_addr, 4);
3312 crc = wol_calc_crc((sizeof(struct arp_packet) + 7) / 8, buf,
3313 (u8 *) & mask_pattern[0][0]);
3315 writew(crc, ®s->PatternCRC[0]);
3316 writew(WOLCR_ARP_EN, ®s->WOLCRSet);
3319 BYTE_REG_BITS_ON(PWCFG_WOLTYPE, ®s->PWCFGSet);
3320 BYTE_REG_BITS_ON(PWCFG_LEGACY_WOLEN, ®s->PWCFGSet);
3322 writew(0x0FFF, ®s->WOLSRClr);
3324 if (vptr->mii_status & VELOCITY_AUTONEG_ENABLE) {
3325 if (PHYID_GET_PHY_ID(vptr->phy_id) == PHYID_CICADA_CS8201)
3326 MII_REG_BITS_ON(AUXCR_MDPPS, MII_REG_AUXCR, vptr->mac_regs);
3328 MII_REG_BITS_OFF(G1000CR_1000FD | G1000CR_1000, MII_REG_G1000CR, vptr->mac_regs);
3331 if (vptr->mii_status & VELOCITY_SPEED_1000)
3332 MII_REG_BITS_ON(BMCR_REAUTO, MII_REG_BMCR, vptr->mac_regs);
3334 BYTE_REG_BITS_ON(CHIPGCR_FCMODE, ®s->CHIPGCR);
3338 GCR = readb(®s->CHIPGCR);
3339 GCR = (GCR & ~CHIPGCR_FCGMII) | CHIPGCR_FCFDX;
3340 writeb(GCR, ®s->CHIPGCR);
3343 BYTE_REG_BITS_OFF(ISR_PWEI, ®s->ISR);
3344 /* Turn on SWPTAG just before entering power mode */
3345 BYTE_REG_BITS_ON(STICKHW_SWPTAG, ®s->STICKHW);
3346 /* Go to bed ..... */
3347 BYTE_REG_BITS_ON((STICKHW_DS1 | STICKHW_DS0), ®s->STICKHW);
3352 static int velocity_suspend(struct pci_dev *pdev, pm_message_t state)
3354 struct net_device *dev = pci_get_drvdata(pdev);
3355 struct velocity_info *vptr = netdev_priv(dev);
3356 unsigned long flags;
3358 if(!netif_running(vptr->dev))
3361 netif_device_detach(vptr->dev);
3363 spin_lock_irqsave(&vptr->lock, flags);
3364 pci_save_state(pdev);
3366 if (vptr->flags & VELOCITY_FLAGS_WOL_ENABLED) {
3367 velocity_get_ip(vptr);
3368 velocity_save_context(vptr, &vptr->context);
3369 velocity_shutdown(vptr);
3370 velocity_set_wol(vptr);
3371 pci_enable_wake(pdev, PCI_D3hot, 1);
3372 pci_set_power_state(pdev, PCI_D3hot);
3374 velocity_save_context(vptr, &vptr->context);
3375 velocity_shutdown(vptr);
3376 pci_disable_device(pdev);
3377 pci_set_power_state(pdev, pci_choose_state(pdev, state));
3380 pci_set_power_state(pdev, pci_choose_state(pdev, state));
3382 spin_unlock_irqrestore(&vptr->lock, flags);
3386 static int velocity_resume(struct pci_dev *pdev)
3388 struct net_device *dev = pci_get_drvdata(pdev);
3389 struct velocity_info *vptr = netdev_priv(dev);
3390 unsigned long flags;
3393 if(!netif_running(vptr->dev))
3396 pci_set_power_state(pdev, PCI_D0);
3397 pci_enable_wake(pdev, 0, 0);
3398 pci_restore_state(pdev);
3400 mac_wol_reset(vptr->mac_regs);
3402 spin_lock_irqsave(&vptr->lock, flags);
3403 velocity_restore_context(vptr, &vptr->context);
3404 velocity_init_registers(vptr, VELOCITY_INIT_WOL);
3405 mac_disable_int(vptr->mac_regs);
3407 velocity_tx_srv(vptr, 0);
3409 for (i = 0; i < vptr->tx.numq; i++) {
3410 if (vptr->tx.used[i]) {
3411 mac_tx_queue_wake(vptr->mac_regs, i);
3415 mac_enable_int(vptr->mac_regs);
3416 spin_unlock_irqrestore(&vptr->lock, flags);
3417 netif_device_attach(vptr->dev);
3424 static int velocity_netdev_event(struct notifier_block *nb, unsigned long notification, void *ptr)
3426 struct in_ifaddr *ifa = (struct in_ifaddr *) ptr;
3427 struct net_device *dev = ifa->ifa_dev->dev;
3428 struct velocity_info *vptr;
3429 unsigned long flags;
3431 if (dev_net(dev) != &init_net)
3434 spin_lock_irqsave(&velocity_dev_list_lock, flags);
3435 list_for_each_entry(vptr, &velocity_dev_list, list) {
3436 if (vptr->dev == dev) {
3437 velocity_get_ip(vptr);
3441 spin_unlock_irqrestore(&velocity_dev_list_lock, flags);