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.
12 * rx_copybreak/alignment
16 * The changes are (c) Copyright 2004, Red Hat Inc. <alan@redhat.com>
17 * Additional fixes and clean up: Francois Romieu
19 * This source has not been verified for use in safety critical systems.
21 * Please direct queries about the revamped driver to the linux-kernel
26 * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
27 * All rights reserved.
29 * This software may be redistributed and/or modified under
30 * the terms of the GNU General Public License as published by the Free
31 * Software Foundation; either version 2 of the License, or
34 * This program is distributed in the hope that it will be useful, but
35 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
36 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
39 * Author: Chuang Liang-Shing, AJ Jiang
43 * MODULE_LICENSE("GPL");
48 #include <linux/module.h>
49 #include <linux/types.h>
50 #include <linux/init.h>
52 #include <linux/errno.h>
53 #include <linux/ioport.h>
54 #include <linux/pci.h>
55 #include <linux/kernel.h>
56 #include <linux/netdevice.h>
57 #include <linux/etherdevice.h>
58 #include <linux/skbuff.h>
59 #include <linux/delay.h>
60 #include <linux/timer.h>
61 #include <linux/slab.h>
62 #include <linux/interrupt.h>
63 #include <linux/string.h>
64 #include <linux/wait.h>
67 #include <asm/uaccess.h>
68 #include <linux/proc_fs.h>
69 #include <linux/inetdevice.h>
70 #include <linux/reboot.h>
71 #include <linux/ethtool.h>
72 #include <linux/mii.h>
74 #include <linux/if_arp.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 static int velocity_mii_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd);
89 static const struct ethtool_ops velocity_ethtool_ops;
95 MODULE_AUTHOR("VIA Networking Technologies, Inc.");
96 MODULE_LICENSE("GPL");
97 MODULE_DESCRIPTION("VIA Networking Velocity Family Gigabit Ethernet Adapter Driver");
99 #define VELOCITY_PARAM(N,D) \
100 static int N[MAX_UNITS]=OPTION_DEFAULT;\
101 module_param_array(N, int, NULL, 0); \
102 MODULE_PARM_DESC(N, D);
104 #define RX_DESC_MIN 64
105 #define RX_DESC_MAX 255
106 #define RX_DESC_DEF 64
107 VELOCITY_PARAM(RxDescriptors, "Number of receive descriptors");
109 #define TX_DESC_MIN 16
110 #define TX_DESC_MAX 256
111 #define TX_DESC_DEF 64
112 VELOCITY_PARAM(TxDescriptors, "Number of transmit descriptors");
114 #define VLAN_ID_MIN 0
115 #define VLAN_ID_MAX 4095
116 #define VLAN_ID_DEF 0
117 /* VID_setting[] is used for setting the VID of NIC.
121 VELOCITY_PARAM(VID_setting, "802.1Q VLAN ID");
123 #define RX_THRESH_MIN 0
124 #define RX_THRESH_MAX 3
125 #define RX_THRESH_DEF 0
126 /* rx_thresh[] is used for controlling the receive fifo threshold.
127 0: indicate the rxfifo threshold is 128 bytes.
128 1: indicate the rxfifo threshold is 512 bytes.
129 2: indicate the rxfifo threshold is 1024 bytes.
130 3: indicate the rxfifo threshold is store & forward.
132 VELOCITY_PARAM(rx_thresh, "Receive fifo threshold");
134 #define DMA_LENGTH_MIN 0
135 #define DMA_LENGTH_MAX 7
136 #define DMA_LENGTH_DEF 0
138 /* DMA_length[] is used for controlling the DMA length
145 6: SF(flush till emply)
146 7: SF(flush till emply)
148 VELOCITY_PARAM(DMA_length, "DMA length");
150 #define TAGGING_DEF 0
151 /* enable_tagging[] is used for enabling 802.1Q VID tagging.
152 0: disable VID seeting(default).
153 1: enable VID setting.
155 VELOCITY_PARAM(enable_tagging, "Enable 802.1Q tagging");
157 #define IP_ALIG_DEF 0
158 /* IP_byte_align[] is used for IP header DWORD byte aligned
159 0: indicate the IP header won't be DWORD byte aligned.(Default) .
160 1: indicate the IP header will be DWORD byte aligned.
161 In some enviroment, the IP header should be DWORD byte aligned,
162 or the packet will be droped when we receive it. (eg: IPVS)
164 VELOCITY_PARAM(IP_byte_align, "Enable IP header dword aligned");
166 #define TX_CSUM_DEF 1
167 /* txcsum_offload[] is used for setting the checksum offload ability of NIC.
168 (We only support RX checksum offload now)
169 0: disable csum_offload[checksum offload
170 1: enable checksum offload. (Default)
172 VELOCITY_PARAM(txcsum_offload, "Enable transmit packet checksum offload");
174 #define FLOW_CNTL_DEF 1
175 #define FLOW_CNTL_MIN 1
176 #define FLOW_CNTL_MAX 5
178 /* flow_control[] is used for setting the flow control ability of NIC.
179 1: hardware deafult - AUTO (default). Use Hardware default value in ANAR.
180 2: enable TX flow control.
181 3: enable RX flow control.
182 4: enable RX/TX flow control.
185 VELOCITY_PARAM(flow_control, "Enable flow control ability");
187 #define MED_LNK_DEF 0
188 #define MED_LNK_MIN 0
189 #define MED_LNK_MAX 4
190 /* speed_duplex[] is used for setting the speed and duplex mode of NIC.
191 0: indicate autonegotiation for both speed and duplex mode
192 1: indicate 100Mbps half duplex mode
193 2: indicate 100Mbps full duplex mode
194 3: indicate 10Mbps half duplex mode
195 4: indicate 10Mbps full duplex mode
198 if EEPROM have been set to the force mode, this option is ignored
201 VELOCITY_PARAM(speed_duplex, "Setting the speed and duplex mode");
203 #define VAL_PKT_LEN_DEF 0
204 /* ValPktLen[] is used for setting the checksum offload ability of NIC.
205 0: Receive frame with invalid layer 2 length (Default)
206 1: Drop frame with invalid layer 2 length
208 VELOCITY_PARAM(ValPktLen, "Receiving or Drop invalid 802.3 frame");
210 #define WOL_OPT_DEF 0
211 #define WOL_OPT_MIN 0
212 #define WOL_OPT_MAX 7
213 /* wol_opts[] is used for controlling wake on lan behavior.
214 0: Wake up if recevied a magic packet. (Default)
215 1: Wake up if link status is on/off.
216 2: Wake up if recevied an arp packet.
217 4: Wake up if recevied any unicast packet.
218 Those value can be sumed up to support more than one option.
220 VELOCITY_PARAM(wol_opts, "Wake On Lan options");
222 #define INT_WORKS_DEF 20
223 #define INT_WORKS_MIN 10
224 #define INT_WORKS_MAX 64
226 VELOCITY_PARAM(int_works, "Number of packets per interrupt services");
228 static int rx_copybreak = 200;
229 module_param(rx_copybreak, int, 0644);
230 MODULE_PARM_DESC(rx_copybreak, "Copy breakpoint for copy-only-tiny-frames");
232 static void velocity_init_info(struct pci_dev *pdev, struct velocity_info *vptr,
233 const struct velocity_info_tbl *info);
234 static int velocity_get_pci_info(struct velocity_info *, struct pci_dev *pdev);
235 static void velocity_print_info(struct velocity_info *vptr);
236 static int velocity_open(struct net_device *dev);
237 static int velocity_change_mtu(struct net_device *dev, int mtu);
238 static int velocity_xmit(struct sk_buff *skb, struct net_device *dev);
239 static int velocity_intr(int irq, void *dev_instance);
240 static void velocity_set_multi(struct net_device *dev);
241 static struct net_device_stats *velocity_get_stats(struct net_device *dev);
242 static int velocity_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
243 static int velocity_close(struct net_device *dev);
244 static int velocity_receive_frame(struct velocity_info *, int idx);
245 static int velocity_alloc_rx_buf(struct velocity_info *, int idx);
246 static void velocity_free_rd_ring(struct velocity_info *vptr);
247 static void velocity_free_tx_buf(struct velocity_info *vptr, struct velocity_td_info *);
248 static int velocity_soft_reset(struct velocity_info *vptr);
249 static void mii_init(struct velocity_info *vptr, u32 mii_status);
250 static u32 velocity_get_link(struct net_device *dev);
251 static u32 velocity_get_opt_media_mode(struct velocity_info *vptr);
252 static void velocity_print_link_status(struct velocity_info *vptr);
253 static void safe_disable_mii_autopoll(struct mac_regs __iomem * regs);
254 static void velocity_shutdown(struct velocity_info *vptr);
255 static void enable_flow_control_ability(struct velocity_info *vptr);
256 static void enable_mii_autopoll(struct mac_regs __iomem * regs);
257 static int velocity_mii_read(struct mac_regs __iomem *, u8 byIdx, u16 * pdata);
258 static int velocity_mii_write(struct mac_regs __iomem *, u8 byMiiAddr, u16 data);
259 static u32 mii_check_media_mode(struct mac_regs __iomem * regs);
260 static u32 check_connection_type(struct mac_regs __iomem * regs);
261 static int velocity_set_media_mode(struct velocity_info *vptr, u32 mii_status);
265 static int velocity_suspend(struct pci_dev *pdev, pm_message_t state);
266 static int velocity_resume(struct pci_dev *pdev);
268 static DEFINE_SPINLOCK(velocity_dev_list_lock);
269 static LIST_HEAD(velocity_dev_list);
273 #if defined(CONFIG_PM) && defined(CONFIG_INET)
275 static int velocity_netdev_event(struct notifier_block *nb, unsigned long notification, void *ptr);
277 static struct notifier_block velocity_inetaddr_notifier = {
278 .notifier_call = velocity_netdev_event,
281 static void velocity_register_notifier(void)
283 register_inetaddr_notifier(&velocity_inetaddr_notifier);
286 static void velocity_unregister_notifier(void)
288 unregister_inetaddr_notifier(&velocity_inetaddr_notifier);
293 #define velocity_register_notifier() do {} while (0)
294 #define velocity_unregister_notifier() do {} while (0)
299 * Internal board variants. At the moment we have only one
302 static const struct velocity_info_tbl chip_info_table[] __devinitdata = {
303 {CHIP_TYPE_VT6110, "VIA Networking Velocity Family Gigabit Ethernet Adapter", 1, 0x00FFFFFFUL},
308 * Describe the PCI device identifiers that we support in this
309 * device driver. Used for hotplug autoloading.
312 static const struct pci_device_id velocity_id_table[] __devinitdata = {
313 { PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_612X) },
317 MODULE_DEVICE_TABLE(pci, velocity_id_table);
320 * get_chip_name - identifier to name
321 * @id: chip identifier
323 * Given a chip identifier return a suitable description. Returns
324 * a pointer a static string valid while the driver is loaded.
327 static char __devinit *get_chip_name(enum chip_type chip_id)
330 for (i = 0; chip_info_table[i].name != NULL; i++)
331 if (chip_info_table[i].chip_id == chip_id)
333 return chip_info_table[i].name;
337 * velocity_remove1 - device unplug
338 * @pdev: PCI device being removed
340 * Device unload callback. Called on an unplug or on module
341 * unload for each active device that is present. Disconnects
342 * the device from the network layer and frees all the resources
345 static void __devexit velocity_remove1(struct pci_dev *pdev)
347 struct net_device *dev = pci_get_drvdata(pdev);
348 struct velocity_info *vptr = netdev_priv(dev);
353 spin_lock_irqsave(&velocity_dev_list_lock, flags);
354 if (!list_empty(&velocity_dev_list))
355 list_del(&vptr->list);
356 spin_unlock_irqrestore(&velocity_dev_list_lock, flags);
358 unregister_netdev(dev);
359 iounmap(vptr->mac_regs);
360 pci_release_regions(pdev);
361 pci_disable_device(pdev);
362 pci_set_drvdata(pdev, NULL);
369 * velocity_set_int_opt - parser for integer options
370 * @opt: pointer to option value
371 * @val: value the user requested (or -1 for default)
372 * @min: lowest value allowed
373 * @max: highest value allowed
374 * @def: default value
375 * @name: property name
378 * Set an integer property in the module options. This function does
379 * all the verification and checking as well as reporting so that
380 * we don't duplicate code for each option.
383 static void __devinit velocity_set_int_opt(int *opt, int val, int min, int max, int def, char *name, char *devname)
387 else if (val < min || val > max) {
388 VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: the value of parameter %s is invalid, the valid range is (%d-%d)\n",
389 devname, name, min, max);
392 VELOCITY_PRT(MSG_LEVEL_INFO, KERN_INFO "%s: set value of parameter %s to %d\n",
399 * velocity_set_bool_opt - parser for boolean options
400 * @opt: pointer to option value
401 * @val: value the user requested (or -1 for default)
402 * @def: default value (yes/no)
403 * @flag: numeric value to set for true.
404 * @name: property name
407 * Set a boolean property in the module options. This function does
408 * all the verification and checking as well as reporting so that
409 * we don't duplicate code for each option.
412 static void __devinit velocity_set_bool_opt(u32 * opt, int val, int def, u32 flag, char *name, char *devname)
416 *opt |= (def ? flag : 0);
417 else if (val < 0 || val > 1) {
418 printk(KERN_NOTICE "%s: the value of parameter %s is invalid, the valid range is (0-1)\n",
420 *opt |= (def ? flag : 0);
422 printk(KERN_INFO "%s: set parameter %s to %s\n",
423 devname, name, val ? "TRUE" : "FALSE");
424 *opt |= (val ? flag : 0);
429 * velocity_get_options - set options on device
430 * @opts: option structure for the device
431 * @index: index of option to use in module options array
432 * @devname: device name
434 * Turn the module and command options into a single structure
435 * for the current device
438 static void __devinit velocity_get_options(struct velocity_opt *opts, int index, char *devname)
441 velocity_set_int_opt(&opts->rx_thresh, rx_thresh[index], RX_THRESH_MIN, RX_THRESH_MAX, RX_THRESH_DEF, "rx_thresh", devname);
442 velocity_set_int_opt(&opts->DMA_length, DMA_length[index], DMA_LENGTH_MIN, DMA_LENGTH_MAX, DMA_LENGTH_DEF, "DMA_length", devname);
443 velocity_set_int_opt(&opts->numrx, RxDescriptors[index], RX_DESC_MIN, RX_DESC_MAX, RX_DESC_DEF, "RxDescriptors", devname);
444 velocity_set_int_opt(&opts->numtx, TxDescriptors[index], TX_DESC_MIN, TX_DESC_MAX, TX_DESC_DEF, "TxDescriptors", devname);
445 velocity_set_int_opt(&opts->vid, VID_setting[index], VLAN_ID_MIN, VLAN_ID_MAX, VLAN_ID_DEF, "VID_setting", devname);
446 velocity_set_bool_opt(&opts->flags, enable_tagging[index], TAGGING_DEF, VELOCITY_FLAGS_TAGGING, "enable_tagging", devname);
447 velocity_set_bool_opt(&opts->flags, txcsum_offload[index], TX_CSUM_DEF, VELOCITY_FLAGS_TX_CSUM, "txcsum_offload", devname);
448 velocity_set_int_opt(&opts->flow_cntl, flow_control[index], FLOW_CNTL_MIN, FLOW_CNTL_MAX, FLOW_CNTL_DEF, "flow_control", devname);
449 velocity_set_bool_opt(&opts->flags, IP_byte_align[index], IP_ALIG_DEF, VELOCITY_FLAGS_IP_ALIGN, "IP_byte_align", devname);
450 velocity_set_bool_opt(&opts->flags, ValPktLen[index], VAL_PKT_LEN_DEF, VELOCITY_FLAGS_VAL_PKT_LEN, "ValPktLen", devname);
451 velocity_set_int_opt((int *) &opts->spd_dpx, speed_duplex[index], MED_LNK_MIN, MED_LNK_MAX, MED_LNK_DEF, "Media link mode", devname);
452 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);
453 velocity_set_int_opt((int *) &opts->int_works, int_works[index], INT_WORKS_MIN, INT_WORKS_MAX, INT_WORKS_DEF, "Interrupt service works", devname);
454 opts->numrx = (opts->numrx & ~3);
458 * velocity_init_cam_filter - initialise CAM
459 * @vptr: velocity to program
461 * Initialize the content addressable memory used for filters. Load
462 * appropriately according to the presence of VLAN
465 static void velocity_init_cam_filter(struct velocity_info *vptr)
467 struct mac_regs __iomem * regs = vptr->mac_regs;
469 /* Turn on MCFG_PQEN, turn off MCFG_RTGOPT */
470 WORD_REG_BITS_SET(MCFG_PQEN, MCFG_RTGOPT, ®s->MCFG);
471 WORD_REG_BITS_ON(MCFG_VIDFR, ®s->MCFG);
473 /* Disable all CAMs */
474 memset(vptr->vCAMmask, 0, sizeof(u8) * 8);
475 memset(vptr->mCAMmask, 0, sizeof(u8) * 8);
476 mac_set_cam_mask(regs, vptr->vCAMmask, VELOCITY_VLAN_ID_CAM);
477 mac_set_cam_mask(regs, vptr->mCAMmask, VELOCITY_MULTICAST_CAM);
479 /* Enable first VCAM */
480 if (vptr->flags & VELOCITY_FLAGS_TAGGING) {
481 /* If Tagging option is enabled and VLAN ID is not zero, then
482 turn on MCFG_RTGOPT also */
483 if (vptr->options.vid != 0)
484 WORD_REG_BITS_ON(MCFG_RTGOPT, ®s->MCFG);
486 mac_set_cam(regs, 0, (u8 *) & (vptr->options.vid), VELOCITY_VLAN_ID_CAM);
487 vptr->vCAMmask[0] |= 1;
488 mac_set_cam_mask(regs, vptr->vCAMmask, VELOCITY_VLAN_ID_CAM);
491 mac_set_cam(regs, 0, (u8 *) &temp, VELOCITY_VLAN_ID_CAM);
493 mac_set_cam_mask(regs, (u8 *) &temp, VELOCITY_VLAN_ID_CAM);
498 * velocity_rx_reset - handle a receive reset
499 * @vptr: velocity we are resetting
501 * Reset the ownership and status for the receive ring side.
502 * Hand all the receive queue to the NIC.
505 static void velocity_rx_reset(struct velocity_info *vptr)
508 struct mac_regs __iomem * regs = vptr->mac_regs;
511 vptr->rd_dirty = vptr->rd_filled = vptr->rd_curr = 0;
514 * Init state, all RD entries belong to the NIC
516 for (i = 0; i < vptr->options.numrx; ++i)
517 vptr->rd_ring[i].rdesc0.owner = OWNED_BY_NIC;
519 writew(vptr->options.numrx, ®s->RBRDU);
520 writel(vptr->rd_pool_dma, ®s->RDBaseLo);
521 writew(0, ®s->RDIdx);
522 writew(vptr->options.numrx - 1, ®s->RDCSize);
526 * velocity_init_registers - initialise MAC registers
527 * @vptr: velocity to init
528 * @type: type of initialisation (hot or cold)
530 * Initialise the MAC on a reset or on first set up on the
534 static void velocity_init_registers(struct velocity_info *vptr,
535 enum velocity_init_type type)
537 struct mac_regs __iomem * regs = vptr->mac_regs;
543 case VELOCITY_INIT_RESET:
544 case VELOCITY_INIT_WOL:
546 netif_stop_queue(vptr->dev);
549 * Reset RX to prevent RX pointer not on the 4X location
551 velocity_rx_reset(vptr);
552 mac_rx_queue_run(regs);
553 mac_rx_queue_wake(regs);
555 mii_status = velocity_get_opt_media_mode(vptr);
556 if (velocity_set_media_mode(vptr, mii_status) != VELOCITY_LINK_CHANGE) {
557 velocity_print_link_status(vptr);
558 if (!(vptr->mii_status & VELOCITY_LINK_FAIL))
559 netif_wake_queue(vptr->dev);
562 enable_flow_control_ability(vptr);
565 writel(CR0_STOP, ®s->CR0Clr);
566 writel((CR0_DPOLL | CR0_TXON | CR0_RXON | CR0_STRT),
571 case VELOCITY_INIT_COLD:
576 velocity_soft_reset(vptr);
579 mac_eeprom_reload(regs);
580 for (i = 0; i < 6; i++) {
581 writeb(vptr->dev->dev_addr[i], &(regs->PAR[i]));
584 * clear Pre_ACPI bit.
586 BYTE_REG_BITS_OFF(CFGA_PACPI, &(regs->CFGA));
587 mac_set_rx_thresh(regs, vptr->options.rx_thresh);
588 mac_set_dma_length(regs, vptr->options.DMA_length);
590 writeb(WOLCFG_SAM | WOLCFG_SAB, ®s->WOLCFGSet);
592 * Back off algorithm use original IEEE standard
594 BYTE_REG_BITS_SET(CFGB_OFSET, (CFGB_CRANDOM | CFGB_CAP | CFGB_MBA | CFGB_BAKOPT), ®s->CFGB);
599 velocity_init_cam_filter(vptr);
602 * Set packet filter: Receive directed and broadcast address
604 velocity_set_multi(vptr->dev);
607 * Enable MII auto-polling
609 enable_mii_autopoll(regs);
611 vptr->int_mask = INT_MASK_DEF;
613 writel(cpu_to_le32(vptr->rd_pool_dma), ®s->RDBaseLo);
614 writew(vptr->options.numrx - 1, ®s->RDCSize);
615 mac_rx_queue_run(regs);
616 mac_rx_queue_wake(regs);
618 writew(vptr->options.numtx - 1, ®s->TDCSize);
620 for (i = 0; i < vptr->num_txq; i++) {
621 writel(cpu_to_le32(vptr->td_pool_dma[i]), &(regs->TDBaseLo[i]));
622 mac_tx_queue_run(regs, i);
625 init_flow_control_register(vptr);
627 writel(CR0_STOP, ®s->CR0Clr);
628 writel((CR0_DPOLL | CR0_TXON | CR0_RXON | CR0_STRT), ®s->CR0Set);
630 mii_status = velocity_get_opt_media_mode(vptr);
631 netif_stop_queue(vptr->dev);
633 mii_init(vptr, mii_status);
635 if (velocity_set_media_mode(vptr, mii_status) != VELOCITY_LINK_CHANGE) {
636 velocity_print_link_status(vptr);
637 if (!(vptr->mii_status & VELOCITY_LINK_FAIL))
638 netif_wake_queue(vptr->dev);
641 enable_flow_control_ability(vptr);
642 mac_hw_mibs_init(regs);
643 mac_write_int_mask(vptr->int_mask, regs);
650 * velocity_soft_reset - soft reset
651 * @vptr: velocity to reset
653 * Kick off a soft reset of the velocity adapter and then poll
654 * until the reset sequence has completed before returning.
657 static int velocity_soft_reset(struct velocity_info *vptr)
659 struct mac_regs __iomem * regs = vptr->mac_regs;
662 writel(CR0_SFRST, ®s->CR0Set);
664 for (i = 0; i < W_MAX_TIMEOUT; i++) {
666 if (!DWORD_REG_BITS_IS_ON(CR0_SFRST, ®s->CR0Set))
670 if (i == W_MAX_TIMEOUT) {
671 writel(CR0_FORSRST, ®s->CR0Set);
672 /* FIXME: PCI POSTING */
680 * velocity_found1 - set up discovered velocity card
682 * @ent: PCI device table entry that matched
684 * Configure a discovered adapter from scratch. Return a negative
685 * errno error code on failure paths.
688 static int __devinit velocity_found1(struct pci_dev *pdev, const struct pci_device_id *ent)
690 static int first = 1;
691 struct net_device *dev;
693 const struct velocity_info_tbl *info = &chip_info_table[ent->driver_data];
694 struct velocity_info *vptr;
695 struct mac_regs __iomem * regs;
698 /* FIXME: this driver, like almost all other ethernet drivers,
699 * can support more than MAX_UNITS.
701 if (velocity_nics >= MAX_UNITS) {
702 dev_notice(&pdev->dev, "already found %d NICs.\n",
707 dev = alloc_etherdev(sizeof(struct velocity_info));
709 dev_err(&pdev->dev, "allocate net device failed.\n");
713 /* Chain it all together */
715 SET_MODULE_OWNER(dev);
716 SET_NETDEV_DEV(dev, &pdev->dev);
717 vptr = netdev_priv(dev);
721 printk(KERN_INFO "%s Ver. %s\n",
722 VELOCITY_FULL_DRV_NAM, VELOCITY_VERSION);
723 printk(KERN_INFO "Copyright (c) 2002, 2003 VIA Networking Technologies, Inc.\n");
724 printk(KERN_INFO "Copyright (c) 2004 Red Hat Inc.\n");
728 velocity_init_info(pdev, vptr, info);
732 dev->irq = pdev->irq;
734 ret = pci_enable_device(pdev);
738 ret = velocity_get_pci_info(vptr, pdev);
740 /* error message already printed */
744 ret = pci_request_regions(pdev, VELOCITY_NAME);
746 dev_err(&pdev->dev, "No PCI resources.\n");
750 regs = ioremap(vptr->memaddr, VELOCITY_IO_SIZE);
753 goto err_release_res;
756 vptr->mac_regs = regs;
760 dev->base_addr = vptr->ioaddr;
762 for (i = 0; i < 6; i++)
763 dev->dev_addr[i] = readb(®s->PAR[i]);
766 velocity_get_options(&vptr->options, velocity_nics, dev->name);
769 * Mask out the options cannot be set to the chip
772 vptr->options.flags &= info->flags;
775 * Enable the chip specified capbilities
778 vptr->flags = vptr->options.flags | (info->flags & 0xFF000000UL);
780 vptr->wol_opts = vptr->options.wol_opts;
781 vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED;
783 vptr->phy_id = MII_GET_PHY_ID(vptr->mac_regs);
785 dev->irq = pdev->irq;
786 dev->open = velocity_open;
787 dev->hard_start_xmit = velocity_xmit;
788 dev->stop = velocity_close;
789 dev->get_stats = velocity_get_stats;
790 dev->set_multicast_list = velocity_set_multi;
791 dev->do_ioctl = velocity_ioctl;
792 dev->ethtool_ops = &velocity_ethtool_ops;
793 dev->change_mtu = velocity_change_mtu;
794 #ifdef VELOCITY_ZERO_COPY_SUPPORT
795 dev->features |= NETIF_F_SG;
798 if (vptr->flags & VELOCITY_FLAGS_TX_CSUM) {
799 dev->features |= NETIF_F_IP_CSUM;
802 ret = register_netdev(dev);
806 if (velocity_get_link(dev))
807 netif_carrier_off(dev);
809 velocity_print_info(vptr);
810 pci_set_drvdata(pdev, dev);
812 /* and leave the chip powered down */
814 pci_set_power_state(pdev, PCI_D3hot);
819 spin_lock_irqsave(&velocity_dev_list_lock, flags);
820 list_add(&vptr->list, &velocity_dev_list);
821 spin_unlock_irqrestore(&velocity_dev_list_lock, flags);
831 pci_release_regions(pdev);
833 pci_disable_device(pdev);
840 * velocity_print_info - per driver data
843 * Print per driver data as the kernel driver finds Velocity
847 static void __devinit velocity_print_info(struct velocity_info *vptr)
849 struct net_device *dev = vptr->dev;
851 printk(KERN_INFO "%s: %s\n", dev->name, get_chip_name(vptr->chip_id));
852 printk(KERN_INFO "%s: Ethernet Address: %2.2X:%2.2X:%2.2X:%2.2X:%2.2X:%2.2X\n",
854 dev->dev_addr[0], dev->dev_addr[1], dev->dev_addr[2],
855 dev->dev_addr[3], dev->dev_addr[4], dev->dev_addr[5]);
859 * velocity_init_info - init private data
861 * @vptr: Velocity info
864 * Set up the initial velocity_info struct for the device that has been
868 static void __devinit velocity_init_info(struct pci_dev *pdev,
869 struct velocity_info *vptr,
870 const struct velocity_info_tbl *info)
872 memset(vptr, 0, sizeof(struct velocity_info));
875 vptr->chip_id = info->chip_id;
876 vptr->num_txq = info->txqueue;
877 vptr->multicast_limit = MCAM_SIZE;
878 spin_lock_init(&vptr->lock);
879 INIT_LIST_HEAD(&vptr->list);
883 * velocity_get_pci_info - retrieve PCI info for device
884 * @vptr: velocity device
885 * @pdev: PCI device it matches
887 * Retrieve the PCI configuration space data that interests us from
888 * the kernel PCI layer
891 static int __devinit velocity_get_pci_info(struct velocity_info *vptr, struct pci_dev *pdev)
893 vptr->rev_id = pdev->revision;
895 pci_set_master(pdev);
897 vptr->ioaddr = pci_resource_start(pdev, 0);
898 vptr->memaddr = pci_resource_start(pdev, 1);
900 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_IO)) {
902 "region #0 is not an I/O resource, aborting.\n");
906 if ((pci_resource_flags(pdev, 1) & IORESOURCE_IO)) {
908 "region #1 is an I/O resource, aborting.\n");
912 if (pci_resource_len(pdev, 1) < VELOCITY_IO_SIZE) {
913 dev_err(&pdev->dev, "region #1 is too small.\n");
922 * velocity_init_rings - set up DMA rings
923 * @vptr: Velocity to set up
925 * Allocate PCI mapped DMA rings for the receive and transmit layer
929 static int velocity_init_rings(struct velocity_info *vptr)
938 * Allocate all RD/TD rings a single pool
941 psize = vptr->options.numrx * sizeof(struct rx_desc) +
942 vptr->options.numtx * sizeof(struct tx_desc) * vptr->num_txq;
945 * pci_alloc_consistent() fulfills the requirement for 64 bytes
948 pool = pci_alloc_consistent(vptr->pdev, psize, &pool_dma);
951 printk(KERN_ERR "%s : DMA memory allocation failed.\n",
956 memset(pool, 0, psize);
958 vptr->rd_ring = (struct rx_desc *) pool;
960 vptr->rd_pool_dma = pool_dma;
962 tsize = vptr->options.numtx * PKT_BUF_SZ * vptr->num_txq;
963 vptr->tx_bufs = pci_alloc_consistent(vptr->pdev, tsize,
966 if (vptr->tx_bufs == NULL) {
967 printk(KERN_ERR "%s: DMA memory allocation failed.\n",
969 pci_free_consistent(vptr->pdev, psize, pool, pool_dma);
973 memset(vptr->tx_bufs, 0, vptr->options.numtx * PKT_BUF_SZ * vptr->num_txq);
975 i = vptr->options.numrx * sizeof(struct rx_desc);
978 for (i = 0; i < vptr->num_txq; i++) {
979 int offset = vptr->options.numtx * sizeof(struct tx_desc);
981 vptr->td_pool_dma[i] = pool_dma;
982 vptr->td_rings[i] = (struct tx_desc *) pool;
990 * velocity_free_rings - free PCI ring pointers
991 * @vptr: Velocity to free from
993 * Clean up the PCI ring buffers allocated to this velocity.
996 static void velocity_free_rings(struct velocity_info *vptr)
1000 size = vptr->options.numrx * sizeof(struct rx_desc) +
1001 vptr->options.numtx * sizeof(struct tx_desc) * vptr->num_txq;
1003 pci_free_consistent(vptr->pdev, size, vptr->rd_ring, vptr->rd_pool_dma);
1005 size = vptr->options.numtx * PKT_BUF_SZ * vptr->num_txq;
1007 pci_free_consistent(vptr->pdev, size, vptr->tx_bufs, vptr->tx_bufs_dma);
1010 static inline void velocity_give_many_rx_descs(struct velocity_info *vptr)
1012 struct mac_regs __iomem *regs = vptr->mac_regs;
1013 int avail, dirty, unusable;
1016 * RD number must be equal to 4X per hardware spec
1017 * (programming guide rev 1.20, p.13)
1019 if (vptr->rd_filled < 4)
1024 unusable = vptr->rd_filled & 0x0003;
1025 dirty = vptr->rd_dirty - unusable;
1026 for (avail = vptr->rd_filled & 0xfffc; avail; avail--) {
1027 dirty = (dirty > 0) ? dirty - 1 : vptr->options.numrx - 1;
1028 vptr->rd_ring[dirty].rdesc0.owner = OWNED_BY_NIC;
1031 writew(vptr->rd_filled & 0xfffc, ®s->RBRDU);
1032 vptr->rd_filled = unusable;
1035 static int velocity_rx_refill(struct velocity_info *vptr)
1037 int dirty = vptr->rd_dirty, done = 0, ret = 0;
1040 struct rx_desc *rd = vptr->rd_ring + dirty;
1042 /* Fine for an all zero Rx desc at init time as well */
1043 if (rd->rdesc0.owner == OWNED_BY_NIC)
1046 if (!vptr->rd_info[dirty].skb) {
1047 ret = velocity_alloc_rx_buf(vptr, dirty);
1052 dirty = (dirty < vptr->options.numrx - 1) ? dirty + 1 : 0;
1053 } while (dirty != vptr->rd_curr);
1056 vptr->rd_dirty = dirty;
1057 vptr->rd_filled += done;
1058 velocity_give_many_rx_descs(vptr);
1065 * velocity_init_rd_ring - set up receive ring
1066 * @vptr: velocity to configure
1068 * Allocate and set up the receive buffers for each ring slot and
1069 * assign them to the network adapter.
1072 static int velocity_init_rd_ring(struct velocity_info *vptr)
1075 unsigned int rsize = sizeof(struct velocity_rd_info) *
1076 vptr->options.numrx;
1078 vptr->rd_info = kmalloc(rsize, GFP_KERNEL);
1079 if(vptr->rd_info == NULL)
1081 memset(vptr->rd_info, 0, rsize);
1083 vptr->rd_filled = vptr->rd_dirty = vptr->rd_curr = 0;
1085 ret = velocity_rx_refill(vptr);
1087 VELOCITY_PRT(MSG_LEVEL_ERR, KERN_ERR
1088 "%s: failed to allocate RX buffer.\n", vptr->dev->name);
1089 velocity_free_rd_ring(vptr);
1096 * velocity_free_rd_ring - free receive ring
1097 * @vptr: velocity to clean up
1099 * Free the receive buffers for each ring slot and any
1100 * attached socket buffers that need to go away.
1103 static void velocity_free_rd_ring(struct velocity_info *vptr)
1107 if (vptr->rd_info == NULL)
1110 for (i = 0; i < vptr->options.numrx; i++) {
1111 struct velocity_rd_info *rd_info = &(vptr->rd_info[i]);
1112 struct rx_desc *rd = vptr->rd_ring + i;
1114 memset(rd, 0, sizeof(*rd));
1118 pci_unmap_single(vptr->pdev, rd_info->skb_dma, vptr->rx_buf_sz,
1119 PCI_DMA_FROMDEVICE);
1120 rd_info->skb_dma = (dma_addr_t) NULL;
1122 dev_kfree_skb(rd_info->skb);
1123 rd_info->skb = NULL;
1126 kfree(vptr->rd_info);
1127 vptr->rd_info = NULL;
1131 * velocity_init_td_ring - set up transmit ring
1134 * Set up the transmit ring and chain the ring pointers together.
1135 * Returns zero on success or a negative posix errno code for
1139 static int velocity_init_td_ring(struct velocity_info *vptr)
1144 struct velocity_td_info *td_info;
1145 unsigned int tsize = sizeof(struct velocity_td_info) *
1146 vptr->options.numtx;
1148 /* Init the TD ring entries */
1149 for (j = 0; j < vptr->num_txq; j++) {
1150 curr = vptr->td_pool_dma[j];
1152 vptr->td_infos[j] = kmalloc(tsize, GFP_KERNEL);
1153 if(vptr->td_infos[j] == NULL)
1156 kfree(vptr->td_infos[j]);
1159 memset(vptr->td_infos[j], 0, tsize);
1161 for (i = 0; i < vptr->options.numtx; i++, curr += sizeof(struct tx_desc)) {
1162 td = &(vptr->td_rings[j][i]);
1163 td_info = &(vptr->td_infos[j][i]);
1164 td_info->buf = vptr->tx_bufs +
1165 (j * vptr->options.numtx + i) * PKT_BUF_SZ;
1166 td_info->buf_dma = vptr->tx_bufs_dma +
1167 (j * vptr->options.numtx + i) * PKT_BUF_SZ;
1169 vptr->td_tail[j] = vptr->td_curr[j] = vptr->td_used[j] = 0;
1175 * FIXME: could we merge this with velocity_free_tx_buf ?
1178 static void velocity_free_td_ring_entry(struct velocity_info *vptr,
1181 struct velocity_td_info * td_info = &(vptr->td_infos[q][n]);
1184 if (td_info == NULL)
1188 for (i = 0; i < td_info->nskb_dma; i++)
1190 if (td_info->skb_dma[i]) {
1191 pci_unmap_single(vptr->pdev, td_info->skb_dma[i],
1192 td_info->skb->len, PCI_DMA_TODEVICE);
1193 td_info->skb_dma[i] = (dma_addr_t) NULL;
1196 dev_kfree_skb(td_info->skb);
1197 td_info->skb = NULL;
1202 * velocity_free_td_ring - free td ring
1205 * Free up the transmit ring for this particular velocity adapter.
1206 * We free the ring contents but not the ring itself.
1209 static void velocity_free_td_ring(struct velocity_info *vptr)
1213 for (j = 0; j < vptr->num_txq; j++) {
1214 if (vptr->td_infos[j] == NULL)
1216 for (i = 0; i < vptr->options.numtx; i++) {
1217 velocity_free_td_ring_entry(vptr, j, i);
1220 kfree(vptr->td_infos[j]);
1221 vptr->td_infos[j] = NULL;
1226 * velocity_rx_srv - service RX interrupt
1228 * @status: adapter status (unused)
1230 * Walk the receive ring of the velocity adapter and remove
1231 * any received packets from the receive queue. Hand the ring
1232 * slots back to the adapter for reuse.
1235 static int velocity_rx_srv(struct velocity_info *vptr, int status)
1237 struct net_device_stats *stats = &vptr->stats;
1238 int rd_curr = vptr->rd_curr;
1242 struct rx_desc *rd = vptr->rd_ring + rd_curr;
1244 if (!vptr->rd_info[rd_curr].skb)
1247 if (rd->rdesc0.owner == OWNED_BY_NIC)
1253 * Don't drop CE or RL error frame although RXOK is off
1255 if ((rd->rdesc0.RSR & RSR_RXOK) || (!(rd->rdesc0.RSR & RSR_RXOK) && (rd->rdesc0.RSR & (RSR_CE | RSR_RL)))) {
1256 if (velocity_receive_frame(vptr, rd_curr) < 0)
1257 stats->rx_dropped++;
1259 if (rd->rdesc0.RSR & RSR_CRC)
1260 stats->rx_crc_errors++;
1261 if (rd->rdesc0.RSR & RSR_FAE)
1262 stats->rx_frame_errors++;
1264 stats->rx_dropped++;
1269 vptr->dev->last_rx = jiffies;
1272 if (rd_curr >= vptr->options.numrx)
1274 } while (++works <= 15);
1276 vptr->rd_curr = rd_curr;
1278 if (works > 0 && velocity_rx_refill(vptr) < 0) {
1279 VELOCITY_PRT(MSG_LEVEL_ERR, KERN_ERR
1280 "%s: rx buf allocation failure\n", vptr->dev->name);
1288 * velocity_rx_csum - checksum process
1289 * @rd: receive packet descriptor
1290 * @skb: network layer packet buffer
1292 * Process the status bits for the received packet and determine
1293 * if the checksum was computed and verified by the hardware
1296 static inline void velocity_rx_csum(struct rx_desc *rd, struct sk_buff *skb)
1298 skb->ip_summed = CHECKSUM_NONE;
1300 if (rd->rdesc1.CSM & CSM_IPKT) {
1301 if (rd->rdesc1.CSM & CSM_IPOK) {
1302 if ((rd->rdesc1.CSM & CSM_TCPKT) ||
1303 (rd->rdesc1.CSM & CSM_UDPKT)) {
1304 if (!(rd->rdesc1.CSM & CSM_TUPOK)) {
1308 skb->ip_summed = CHECKSUM_UNNECESSARY;
1314 * velocity_rx_copy - in place Rx copy for small packets
1315 * @rx_skb: network layer packet buffer candidate
1316 * @pkt_size: received data size
1317 * @rd: receive packet descriptor
1318 * @dev: network device
1320 * Replace the current skb that is scheduled for Rx processing by a
1321 * shorter, immediatly allocated skb, if the received packet is small
1322 * enough. This function returns a negative value if the received
1323 * packet is too big or if memory is exhausted.
1325 static inline int velocity_rx_copy(struct sk_buff **rx_skb, int pkt_size,
1326 struct velocity_info *vptr)
1330 if (pkt_size < rx_copybreak) {
1331 struct sk_buff *new_skb;
1333 new_skb = dev_alloc_skb(pkt_size + 2);
1335 new_skb->dev = vptr->dev;
1336 new_skb->ip_summed = rx_skb[0]->ip_summed;
1338 if (vptr->flags & VELOCITY_FLAGS_IP_ALIGN)
1339 skb_reserve(new_skb, 2);
1341 skb_copy_from_linear_data(rx_skb[0], new_skb->data,
1352 * velocity_iph_realign - IP header alignment
1353 * @vptr: velocity we are handling
1354 * @skb: network layer packet buffer
1355 * @pkt_size: received data size
1357 * Align IP header on a 2 bytes boundary. This behavior can be
1358 * configured by the user.
1360 static inline void velocity_iph_realign(struct velocity_info *vptr,
1361 struct sk_buff *skb, int pkt_size)
1363 /* FIXME - memmove ? */
1364 if (vptr->flags & VELOCITY_FLAGS_IP_ALIGN) {
1367 for (i = pkt_size; i >= 0; i--)
1368 *(skb->data + i + 2) = *(skb->data + i);
1369 skb_reserve(skb, 2);
1374 * velocity_receive_frame - received packet processor
1375 * @vptr: velocity we are handling
1378 * A packet has arrived. We process the packet and if appropriate
1379 * pass the frame up the network stack
1382 static int velocity_receive_frame(struct velocity_info *vptr, int idx)
1384 void (*pci_action)(struct pci_dev *, dma_addr_t, size_t, int);
1385 struct net_device_stats *stats = &vptr->stats;
1386 struct velocity_rd_info *rd_info = &(vptr->rd_info[idx]);
1387 struct rx_desc *rd = &(vptr->rd_ring[idx]);
1388 int pkt_len = rd->rdesc0.len;
1389 struct sk_buff *skb;
1391 if (rd->rdesc0.RSR & (RSR_STP | RSR_EDP)) {
1392 VELOCITY_PRT(MSG_LEVEL_VERBOSE, KERN_ERR " %s : the received frame span multple RDs.\n", vptr->dev->name);
1393 stats->rx_length_errors++;
1397 if (rd->rdesc0.RSR & RSR_MAR)
1398 vptr->stats.multicast++;
1402 pci_dma_sync_single_for_cpu(vptr->pdev, rd_info->skb_dma,
1403 vptr->rx_buf_sz, PCI_DMA_FROMDEVICE);
1406 * Drop frame not meeting IEEE 802.3
1409 if (vptr->flags & VELOCITY_FLAGS_VAL_PKT_LEN) {
1410 if (rd->rdesc0.RSR & RSR_RL) {
1411 stats->rx_length_errors++;
1416 pci_action = pci_dma_sync_single_for_device;
1418 velocity_rx_csum(rd, skb);
1420 if (velocity_rx_copy(&skb, pkt_len, vptr) < 0) {
1421 velocity_iph_realign(vptr, skb, pkt_len);
1422 pci_action = pci_unmap_single;
1423 rd_info->skb = NULL;
1426 pci_action(vptr->pdev, rd_info->skb_dma, vptr->rx_buf_sz,
1427 PCI_DMA_FROMDEVICE);
1429 skb_put(skb, pkt_len - 4);
1430 skb->protocol = eth_type_trans(skb, vptr->dev);
1432 stats->rx_bytes += pkt_len;
1439 * velocity_alloc_rx_buf - allocate aligned receive buffer
1443 * Allocate a new full sized buffer for the reception of a frame and
1444 * map it into PCI space for the hardware to use. The hardware
1445 * requires *64* byte alignment of the buffer which makes life
1446 * less fun than would be ideal.
1449 static int velocity_alloc_rx_buf(struct velocity_info *vptr, int idx)
1451 struct rx_desc *rd = &(vptr->rd_ring[idx]);
1452 struct velocity_rd_info *rd_info = &(vptr->rd_info[idx]);
1454 rd_info->skb = dev_alloc_skb(vptr->rx_buf_sz + 64);
1455 if (rd_info->skb == NULL)
1459 * Do the gymnastics to get the buffer head for data at
1462 skb_reserve(rd_info->skb, (unsigned long) rd_info->skb->data & 63);
1463 rd_info->skb->dev = vptr->dev;
1464 rd_info->skb_dma = pci_map_single(vptr->pdev, rd_info->skb->data, vptr->rx_buf_sz, PCI_DMA_FROMDEVICE);
1467 * Fill in the descriptor to match
1470 *((u32 *) & (rd->rdesc0)) = 0;
1471 rd->len = cpu_to_le32(vptr->rx_buf_sz);
1473 rd->pa_low = cpu_to_le32(rd_info->skb_dma);
1479 * tx_srv - transmit interrupt service
1483 * Scan the queues looking for transmitted packets that
1484 * we can complete and clean up. Update any statistics as
1488 static int velocity_tx_srv(struct velocity_info *vptr, u32 status)
1495 struct velocity_td_info *tdinfo;
1496 struct net_device_stats *stats = &vptr->stats;
1498 for (qnum = 0; qnum < vptr->num_txq; qnum++) {
1499 for (idx = vptr->td_tail[qnum]; vptr->td_used[qnum] > 0;
1500 idx = (idx + 1) % vptr->options.numtx) {
1505 td = &(vptr->td_rings[qnum][idx]);
1506 tdinfo = &(vptr->td_infos[qnum][idx]);
1508 if (td->tdesc0.owner == OWNED_BY_NIC)
1514 if (td->tdesc0.TSR & TSR0_TERR) {
1516 stats->tx_dropped++;
1517 if (td->tdesc0.TSR & TSR0_CDH)
1518 stats->tx_heartbeat_errors++;
1519 if (td->tdesc0.TSR & TSR0_CRS)
1520 stats->tx_carrier_errors++;
1521 if (td->tdesc0.TSR & TSR0_ABT)
1522 stats->tx_aborted_errors++;
1523 if (td->tdesc0.TSR & TSR0_OWC)
1524 stats->tx_window_errors++;
1526 stats->tx_packets++;
1527 stats->tx_bytes += tdinfo->skb->len;
1529 velocity_free_tx_buf(vptr, tdinfo);
1530 vptr->td_used[qnum]--;
1532 vptr->td_tail[qnum] = idx;
1534 if (AVAIL_TD(vptr, qnum) < 1) {
1539 * Look to see if we should kick the transmit network
1540 * layer for more work.
1542 if (netif_queue_stopped(vptr->dev) && (full == 0)
1543 && (!(vptr->mii_status & VELOCITY_LINK_FAIL))) {
1544 netif_wake_queue(vptr->dev);
1550 * velocity_print_link_status - link status reporting
1551 * @vptr: velocity to report on
1553 * Turn the link status of the velocity card into a kernel log
1554 * description of the new link state, detailing speed and duplex
1558 static void velocity_print_link_status(struct velocity_info *vptr)
1561 if (vptr->mii_status & VELOCITY_LINK_FAIL) {
1562 VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: failed to detect cable link\n", vptr->dev->name);
1563 } else if (vptr->options.spd_dpx == SPD_DPX_AUTO) {
1564 VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: Link auto-negotiation", vptr->dev->name);
1566 if (vptr->mii_status & VELOCITY_SPEED_1000)
1567 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 1000M bps");
1568 else if (vptr->mii_status & VELOCITY_SPEED_100)
1569 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 100M bps");
1571 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 10M bps");
1573 if (vptr->mii_status & VELOCITY_DUPLEX_FULL)
1574 VELOCITY_PRT(MSG_LEVEL_INFO, " full duplex\n");
1576 VELOCITY_PRT(MSG_LEVEL_INFO, " half duplex\n");
1578 VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: Link forced", vptr->dev->name);
1579 switch (vptr->options.spd_dpx) {
1580 case SPD_DPX_100_HALF:
1581 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 100M bps half duplex\n");
1583 case SPD_DPX_100_FULL:
1584 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 100M bps full duplex\n");
1586 case SPD_DPX_10_HALF:
1587 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 10M bps half duplex\n");
1589 case SPD_DPX_10_FULL:
1590 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 10M bps full duplex\n");
1599 * velocity_error - handle error from controller
1601 * @status: card status
1603 * Process an error report from the hardware and attempt to recover
1604 * the card itself. At the moment we cannot recover from some
1605 * theoretically impossible errors but this could be fixed using
1606 * the pci_device_failed logic to bounce the hardware
1610 static void velocity_error(struct velocity_info *vptr, int status)
1613 if (status & ISR_TXSTLI) {
1614 struct mac_regs __iomem * regs = vptr->mac_regs;
1616 printk(KERN_ERR "TD structure error TDindex=%hx\n", readw(®s->TDIdx[0]));
1617 BYTE_REG_BITS_ON(TXESR_TDSTR, ®s->TXESR);
1618 writew(TRDCSR_RUN, ®s->TDCSRClr);
1619 netif_stop_queue(vptr->dev);
1621 /* FIXME: port over the pci_device_failed code and use it
1625 if (status & ISR_SRCI) {
1626 struct mac_regs __iomem * regs = vptr->mac_regs;
1629 if (vptr->options.spd_dpx == SPD_DPX_AUTO) {
1630 vptr->mii_status = check_connection_type(regs);
1633 * If it is a 3119, disable frame bursting in
1634 * halfduplex mode and enable it in fullduplex
1637 if (vptr->rev_id < REV_ID_VT3216_A0) {
1638 if (vptr->mii_status | VELOCITY_DUPLEX_FULL)
1639 BYTE_REG_BITS_ON(TCR_TB2BDIS, ®s->TCR);
1641 BYTE_REG_BITS_OFF(TCR_TB2BDIS, ®s->TCR);
1644 * Only enable CD heart beat counter in 10HD mode
1646 if (!(vptr->mii_status & VELOCITY_DUPLEX_FULL) && (vptr->mii_status & VELOCITY_SPEED_10)) {
1647 BYTE_REG_BITS_OFF(TESTCFG_HBDIS, ®s->TESTCFG);
1649 BYTE_REG_BITS_ON(TESTCFG_HBDIS, ®s->TESTCFG);
1653 * Get link status from PHYSR0
1655 linked = readb(®s->PHYSR0) & PHYSR0_LINKGD;
1658 vptr->mii_status &= ~VELOCITY_LINK_FAIL;
1659 netif_carrier_on(vptr->dev);
1661 vptr->mii_status |= VELOCITY_LINK_FAIL;
1662 netif_carrier_off(vptr->dev);
1665 velocity_print_link_status(vptr);
1666 enable_flow_control_ability(vptr);
1669 * Re-enable auto-polling because SRCI will disable
1673 enable_mii_autopoll(regs);
1675 if (vptr->mii_status & VELOCITY_LINK_FAIL)
1676 netif_stop_queue(vptr->dev);
1678 netif_wake_queue(vptr->dev);
1681 if (status & ISR_MIBFI)
1682 velocity_update_hw_mibs(vptr);
1683 if (status & ISR_LSTEI)
1684 mac_rx_queue_wake(vptr->mac_regs);
1688 * velocity_free_tx_buf - free transmit buffer
1692 * Release an transmit buffer. If the buffer was preallocated then
1693 * recycle it, if not then unmap the buffer.
1696 static void velocity_free_tx_buf(struct velocity_info *vptr, struct velocity_td_info *tdinfo)
1698 struct sk_buff *skb = tdinfo->skb;
1702 * Don't unmap the pre-allocated tx_bufs
1704 if (tdinfo->skb_dma && (tdinfo->skb_dma[0] != tdinfo->buf_dma)) {
1706 for (i = 0; i < tdinfo->nskb_dma; i++) {
1707 #ifdef VELOCITY_ZERO_COPY_SUPPORT
1708 pci_unmap_single(vptr->pdev, tdinfo->skb_dma[i], td->tdesc1.len, PCI_DMA_TODEVICE);
1710 pci_unmap_single(vptr->pdev, tdinfo->skb_dma[i], skb->len, PCI_DMA_TODEVICE);
1712 tdinfo->skb_dma[i] = 0;
1715 dev_kfree_skb_irq(skb);
1720 * velocity_open - interface activation callback
1721 * @dev: network layer device to open
1723 * Called when the network layer brings the interface up. Returns
1724 * a negative posix error code on failure, or zero on success.
1726 * All the ring allocation and set up is done on open for this
1727 * adapter to minimise memory usage when inactive
1730 static int velocity_open(struct net_device *dev)
1732 struct velocity_info *vptr = netdev_priv(dev);
1735 vptr->rx_buf_sz = (dev->mtu <= 1504 ? PKT_BUF_SZ : dev->mtu + 32);
1737 ret = velocity_init_rings(vptr);
1741 ret = velocity_init_rd_ring(vptr);
1743 goto err_free_desc_rings;
1745 ret = velocity_init_td_ring(vptr);
1747 goto err_free_rd_ring;
1749 /* Ensure chip is running */
1750 pci_set_power_state(vptr->pdev, PCI_D0);
1752 velocity_init_registers(vptr, VELOCITY_INIT_COLD);
1754 ret = request_irq(vptr->pdev->irq, &velocity_intr, IRQF_SHARED,
1757 /* Power down the chip */
1758 pci_set_power_state(vptr->pdev, PCI_D3hot);
1759 goto err_free_td_ring;
1762 mac_enable_int(vptr->mac_regs);
1763 netif_start_queue(dev);
1764 vptr->flags |= VELOCITY_FLAGS_OPENED;
1769 velocity_free_td_ring(vptr);
1771 velocity_free_rd_ring(vptr);
1772 err_free_desc_rings:
1773 velocity_free_rings(vptr);
1778 * velocity_change_mtu - MTU change callback
1779 * @dev: network device
1780 * @new_mtu: desired MTU
1782 * Handle requests from the networking layer for MTU change on
1783 * this interface. It gets called on a change by the network layer.
1784 * Return zero for success or negative posix error code.
1787 static int velocity_change_mtu(struct net_device *dev, int new_mtu)
1789 struct velocity_info *vptr = netdev_priv(dev);
1790 unsigned long flags;
1791 int oldmtu = dev->mtu;
1794 if ((new_mtu < VELOCITY_MIN_MTU) || new_mtu > (VELOCITY_MAX_MTU)) {
1795 VELOCITY_PRT(MSG_LEVEL_ERR, KERN_NOTICE "%s: Invalid MTU.\n",
1800 if (new_mtu != oldmtu) {
1801 spin_lock_irqsave(&vptr->lock, flags);
1803 netif_stop_queue(dev);
1804 velocity_shutdown(vptr);
1806 velocity_free_td_ring(vptr);
1807 velocity_free_rd_ring(vptr);
1811 vptr->rx_buf_sz = 9 * 1024;
1812 else if (new_mtu > 4096)
1813 vptr->rx_buf_sz = 8192;
1815 vptr->rx_buf_sz = 4 * 1024;
1817 ret = velocity_init_rd_ring(vptr);
1821 ret = velocity_init_td_ring(vptr);
1825 velocity_init_registers(vptr, VELOCITY_INIT_COLD);
1827 mac_enable_int(vptr->mac_regs);
1828 netif_start_queue(dev);
1830 spin_unlock_irqrestore(&vptr->lock, flags);
1837 * velocity_shutdown - shut down the chip
1838 * @vptr: velocity to deactivate
1840 * Shuts down the internal operations of the velocity and
1841 * disables interrupts, autopolling, transmit and receive
1844 static void velocity_shutdown(struct velocity_info *vptr)
1846 struct mac_regs __iomem * regs = vptr->mac_regs;
1847 mac_disable_int(regs);
1848 writel(CR0_STOP, ®s->CR0Set);
1849 writew(0xFFFF, ®s->TDCSRClr);
1850 writeb(0xFF, ®s->RDCSRClr);
1851 safe_disable_mii_autopoll(regs);
1852 mac_clear_isr(regs);
1856 * velocity_close - close adapter callback
1857 * @dev: network device
1859 * Callback from the network layer when the velocity is being
1860 * deactivated by the network layer
1863 static int velocity_close(struct net_device *dev)
1865 struct velocity_info *vptr = netdev_priv(dev);
1867 netif_stop_queue(dev);
1868 velocity_shutdown(vptr);
1870 if (vptr->flags & VELOCITY_FLAGS_WOL_ENABLED)
1871 velocity_get_ip(vptr);
1873 free_irq(dev->irq, dev);
1875 /* Power down the chip */
1876 pci_set_power_state(vptr->pdev, PCI_D3hot);
1878 /* Free the resources */
1879 velocity_free_td_ring(vptr);
1880 velocity_free_rd_ring(vptr);
1881 velocity_free_rings(vptr);
1883 vptr->flags &= (~VELOCITY_FLAGS_OPENED);
1888 * velocity_xmit - transmit packet callback
1889 * @skb: buffer to transmit
1890 * @dev: network device
1892 * Called by the networ layer to request a packet is queued to
1893 * the velocity. Returns zero on success.
1896 static int velocity_xmit(struct sk_buff *skb, struct net_device *dev)
1898 struct velocity_info *vptr = netdev_priv(dev);
1900 struct tx_desc *td_ptr;
1901 struct velocity_td_info *tdinfo;
1902 unsigned long flags;
1905 int pktlen = skb->len;
1907 #ifdef VELOCITY_ZERO_COPY_SUPPORT
1908 if (skb_shinfo(skb)->nr_frags > 6 && __skb_linearize(skb)) {
1914 spin_lock_irqsave(&vptr->lock, flags);
1916 index = vptr->td_curr[qnum];
1917 td_ptr = &(vptr->td_rings[qnum][index]);
1918 tdinfo = &(vptr->td_infos[qnum][index]);
1920 td_ptr->tdesc1.TCPLS = TCPLS_NORMAL;
1921 td_ptr->tdesc1.TCR = TCR0_TIC;
1922 td_ptr->td_buf[0].queue = 0;
1927 if (pktlen < ETH_ZLEN) {
1928 /* Cannot occur until ZC support */
1930 skb_copy_from_linear_data(skb, tdinfo->buf, skb->len);
1931 memset(tdinfo->buf + skb->len, 0, ETH_ZLEN - skb->len);
1933 tdinfo->skb_dma[0] = tdinfo->buf_dma;
1934 td_ptr->tdesc0.pktsize = pktlen;
1935 td_ptr->td_buf[0].pa_low = cpu_to_le32(tdinfo->skb_dma[0]);
1936 td_ptr->td_buf[0].pa_high = 0;
1937 td_ptr->td_buf[0].bufsize = td_ptr->tdesc0.pktsize;
1938 tdinfo->nskb_dma = 1;
1939 td_ptr->tdesc1.CMDZ = 2;
1941 #ifdef VELOCITY_ZERO_COPY_SUPPORT
1942 if (skb_shinfo(skb)->nr_frags > 0) {
1943 int nfrags = skb_shinfo(skb)->nr_frags;
1946 skb_copy_from_linear_data(skb, tdinfo->buf, skb->len);
1947 tdinfo->skb_dma[0] = tdinfo->buf_dma;
1948 td_ptr->tdesc0.pktsize =
1949 td_ptr->td_buf[0].pa_low = cpu_to_le32(tdinfo->skb_dma[0]);
1950 td_ptr->td_buf[0].pa_high = 0;
1951 td_ptr->td_buf[0].bufsize = td_ptr->tdesc0.pktsize;
1952 tdinfo->nskb_dma = 1;
1953 td_ptr->tdesc1.CMDZ = 2;
1956 tdinfo->nskb_dma = 0;
1957 tdinfo->skb_dma[i] = pci_map_single(vptr->pdev, skb->data, skb->len - skb->data_len, PCI_DMA_TODEVICE);
1959 td_ptr->tdesc0.pktsize = pktlen;
1961 /* FIXME: support 48bit DMA later */
1962 td_ptr->td_buf[i].pa_low = cpu_to_le32(tdinfo->skb_dma);
1963 td_ptr->td_buf[i].pa_high = 0;
1964 td_ptr->td_buf[i].bufsize = skb->len->skb->data_len;
1966 for (i = 0; i < nfrags; i++) {
1967 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
1968 void *addr = ((void *) page_address(frag->page + frag->page_offset));
1970 tdinfo->skb_dma[i + 1] = pci_map_single(vptr->pdev, addr, frag->size, PCI_DMA_TODEVICE);
1972 td_ptr->td_buf[i + 1].pa_low = cpu_to_le32(tdinfo->skb_dma[i + 1]);
1973 td_ptr->td_buf[i + 1].pa_high = 0;
1974 td_ptr->td_buf[i + 1].bufsize = frag->size;
1976 tdinfo->nskb_dma = i - 1;
1977 td_ptr->tdesc1.CMDZ = i;
1984 * Map the linear network buffer into PCI space and
1985 * add it to the transmit ring.
1988 tdinfo->skb_dma[0] = pci_map_single(vptr->pdev, skb->data, pktlen, PCI_DMA_TODEVICE);
1989 td_ptr->tdesc0.pktsize = pktlen;
1990 td_ptr->td_buf[0].pa_low = cpu_to_le32(tdinfo->skb_dma[0]);
1991 td_ptr->td_buf[0].pa_high = 0;
1992 td_ptr->td_buf[0].bufsize = td_ptr->tdesc0.pktsize;
1993 tdinfo->nskb_dma = 1;
1994 td_ptr->tdesc1.CMDZ = 2;
1997 if (vptr->flags & VELOCITY_FLAGS_TAGGING) {
1998 td_ptr->tdesc1.pqinf.VID = (vptr->options.vid & 0xfff);
1999 td_ptr->tdesc1.pqinf.priority = 0;
2000 td_ptr->tdesc1.pqinf.CFI = 0;
2001 td_ptr->tdesc1.TCR |= TCR0_VETAG;
2005 * Handle hardware checksum
2007 if ((vptr->flags & VELOCITY_FLAGS_TX_CSUM)
2008 && (skb->ip_summed == CHECKSUM_PARTIAL)) {
2009 const struct iphdr *ip = ip_hdr(skb);
2010 if (ip->protocol == IPPROTO_TCP)
2011 td_ptr->tdesc1.TCR |= TCR0_TCPCK;
2012 else if (ip->protocol == IPPROTO_UDP)
2013 td_ptr->tdesc1.TCR |= (TCR0_UDPCK);
2014 td_ptr->tdesc1.TCR |= TCR0_IPCK;
2018 int prev = index - 1;
2021 prev = vptr->options.numtx - 1;
2022 td_ptr->tdesc0.owner = OWNED_BY_NIC;
2023 vptr->td_used[qnum]++;
2024 vptr->td_curr[qnum] = (index + 1) % vptr->options.numtx;
2026 if (AVAIL_TD(vptr, qnum) < 1)
2027 netif_stop_queue(dev);
2029 td_ptr = &(vptr->td_rings[qnum][prev]);
2030 td_ptr->td_buf[0].queue = 1;
2031 mac_tx_queue_wake(vptr->mac_regs, qnum);
2033 dev->trans_start = jiffies;
2034 spin_unlock_irqrestore(&vptr->lock, flags);
2039 * velocity_intr - interrupt callback
2040 * @irq: interrupt number
2041 * @dev_instance: interrupting device
2043 * Called whenever an interrupt is generated by the velocity
2044 * adapter IRQ line. We may not be the source of the interrupt
2045 * and need to identify initially if we are, and if not exit as
2046 * efficiently as possible.
2049 static int velocity_intr(int irq, void *dev_instance)
2051 struct net_device *dev = dev_instance;
2052 struct velocity_info *vptr = netdev_priv(dev);
2057 spin_lock(&vptr->lock);
2058 isr_status = mac_read_isr(vptr->mac_regs);
2061 if (isr_status == 0) {
2062 spin_unlock(&vptr->lock);
2066 mac_disable_int(vptr->mac_regs);
2069 * Keep processing the ISR until we have completed
2070 * processing and the isr_status becomes zero
2073 while (isr_status != 0) {
2074 mac_write_isr(vptr->mac_regs, isr_status);
2075 if (isr_status & (~(ISR_PRXI | ISR_PPRXI | ISR_PTXI | ISR_PPTXI)))
2076 velocity_error(vptr, isr_status);
2077 if (isr_status & (ISR_PRXI | ISR_PPRXI))
2078 max_count += velocity_rx_srv(vptr, isr_status);
2079 if (isr_status & (ISR_PTXI | ISR_PPTXI))
2080 max_count += velocity_tx_srv(vptr, isr_status);
2081 isr_status = mac_read_isr(vptr->mac_regs);
2082 if (max_count > vptr->options.int_works)
2084 printk(KERN_WARNING "%s: excessive work at interrupt.\n",
2089 spin_unlock(&vptr->lock);
2090 mac_enable_int(vptr->mac_regs);
2097 * velocity_set_multi - filter list change callback
2098 * @dev: network device
2100 * Called by the network layer when the filter lists need to change
2101 * for a velocity adapter. Reload the CAMs with the new address
2105 static void velocity_set_multi(struct net_device *dev)
2107 struct velocity_info *vptr = netdev_priv(dev);
2108 struct mac_regs __iomem * regs = vptr->mac_regs;
2111 struct dev_mc_list *mclist;
2113 if (dev->flags & IFF_PROMISC) { /* Set promiscuous. */
2114 writel(0xffffffff, ®s->MARCAM[0]);
2115 writel(0xffffffff, ®s->MARCAM[4]);
2116 rx_mode = (RCR_AM | RCR_AB | RCR_PROM);
2117 } else if ((dev->mc_count > vptr->multicast_limit)
2118 || (dev->flags & IFF_ALLMULTI)) {
2119 writel(0xffffffff, ®s->MARCAM[0]);
2120 writel(0xffffffff, ®s->MARCAM[4]);
2121 rx_mode = (RCR_AM | RCR_AB);
2123 int offset = MCAM_SIZE - vptr->multicast_limit;
2124 mac_get_cam_mask(regs, vptr->mCAMmask, VELOCITY_MULTICAST_CAM);
2126 for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count; i++, mclist = mclist->next) {
2127 mac_set_cam(regs, i + offset, mclist->dmi_addr, VELOCITY_MULTICAST_CAM);
2128 vptr->mCAMmask[(offset + i) / 8] |= 1 << ((offset + i) & 7);
2131 mac_set_cam_mask(regs, vptr->mCAMmask, VELOCITY_MULTICAST_CAM);
2132 rx_mode = (RCR_AM | RCR_AB);
2134 if (dev->mtu > 1500)
2137 BYTE_REG_BITS_ON(rx_mode, ®s->RCR);
2142 * velocity_get_status - statistics callback
2143 * @dev: network device
2145 * Callback from the network layer to allow driver statistics
2146 * to be resynchronized with hardware collected state. In the
2147 * case of the velocity we need to pull the MIB counters from
2148 * the hardware into the counters before letting the network
2149 * layer display them.
2152 static struct net_device_stats *velocity_get_stats(struct net_device *dev)
2154 struct velocity_info *vptr = netdev_priv(dev);
2156 /* If the hardware is down, don't touch MII */
2157 if(!netif_running(dev))
2158 return &vptr->stats;
2160 spin_lock_irq(&vptr->lock);
2161 velocity_update_hw_mibs(vptr);
2162 spin_unlock_irq(&vptr->lock);
2164 vptr->stats.rx_packets = vptr->mib_counter[HW_MIB_ifRxAllPkts];
2165 vptr->stats.rx_errors = vptr->mib_counter[HW_MIB_ifRxErrorPkts];
2166 vptr->stats.rx_length_errors = vptr->mib_counter[HW_MIB_ifInRangeLengthErrors];
2168 // unsigned long rx_dropped; /* no space in linux buffers */
2169 vptr->stats.collisions = vptr->mib_counter[HW_MIB_ifTxEtherCollisions];
2170 /* detailed rx_errors: */
2171 // unsigned long rx_length_errors;
2172 // unsigned long rx_over_errors; /* receiver ring buff overflow */
2173 vptr->stats.rx_crc_errors = vptr->mib_counter[HW_MIB_ifRxPktCRCE];
2174 // unsigned long rx_frame_errors; /* recv'd frame alignment error */
2175 // unsigned long rx_fifo_errors; /* recv'r fifo overrun */
2176 // unsigned long rx_missed_errors; /* receiver missed packet */
2178 /* detailed tx_errors */
2179 // unsigned long tx_fifo_errors;
2181 return &vptr->stats;
2186 * velocity_ioctl - ioctl entry point
2187 * @dev: network device
2188 * @rq: interface request ioctl
2189 * @cmd: command code
2191 * Called when the user issues an ioctl request to the network
2192 * device in question. The velocity interface supports MII.
2195 static int velocity_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
2197 struct velocity_info *vptr = netdev_priv(dev);
2200 /* If we are asked for information and the device is power
2201 saving then we need to bring the device back up to talk to it */
2203 if (!netif_running(dev))
2204 pci_set_power_state(vptr->pdev, PCI_D0);
2207 case SIOCGMIIPHY: /* Get address of MII PHY in use. */
2208 case SIOCGMIIREG: /* Read MII PHY register. */
2209 case SIOCSMIIREG: /* Write to MII PHY register. */
2210 ret = velocity_mii_ioctl(dev, rq, cmd);
2216 if (!netif_running(dev))
2217 pci_set_power_state(vptr->pdev, PCI_D3hot);
2224 * Definition for our device driver. The PCI layer interface
2225 * uses this to handle all our card discover and plugging
2228 static struct pci_driver velocity_driver = {
2229 .name = VELOCITY_NAME,
2230 .id_table = velocity_id_table,
2231 .probe = velocity_found1,
2232 .remove = __devexit_p(velocity_remove1),
2234 .suspend = velocity_suspend,
2235 .resume = velocity_resume,
2240 * velocity_init_module - load time function
2242 * Called when the velocity module is loaded. The PCI driver
2243 * is registered with the PCI layer, and in turn will call
2244 * the probe functions for each velocity adapter installed
2248 static int __init velocity_init_module(void)
2252 velocity_register_notifier();
2253 ret = pci_register_driver(&velocity_driver);
2255 velocity_unregister_notifier();
2260 * velocity_cleanup - module unload
2262 * When the velocity hardware is unloaded this function is called.
2263 * It will clean up the notifiers and the unregister the PCI
2264 * driver interface for this hardware. This in turn cleans up
2265 * all discovered interfaces before returning from the function
2268 static void __exit velocity_cleanup_module(void)
2270 velocity_unregister_notifier();
2271 pci_unregister_driver(&velocity_driver);
2274 module_init(velocity_init_module);
2275 module_exit(velocity_cleanup_module);
2279 * MII access , media link mode setting functions
2284 * mii_init - set up MII
2285 * @vptr: velocity adapter
2286 * @mii_status: links tatus
2288 * Set up the PHY for the current link state.
2291 static void mii_init(struct velocity_info *vptr, u32 mii_status)
2295 switch (PHYID_GET_PHY_ID(vptr->phy_id)) {
2296 case PHYID_CICADA_CS8201:
2298 * Reset to hardware default
2300 MII_REG_BITS_OFF((ANAR_ASMDIR | ANAR_PAUSE), MII_REG_ANAR, vptr->mac_regs);
2302 * Turn on ECHODIS bit in NWay-forced full mode and turn it
2303 * off it in NWay-forced half mode for NWay-forced v.s.
2304 * legacy-forced issue.
2306 if (vptr->mii_status & VELOCITY_DUPLEX_FULL)
2307 MII_REG_BITS_ON(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs);
2309 MII_REG_BITS_OFF(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs);
2311 * Turn on Link/Activity LED enable bit for CIS8201
2313 MII_REG_BITS_ON(PLED_LALBE, MII_REG_PLED, vptr->mac_regs);
2315 case PHYID_VT3216_32BIT:
2316 case PHYID_VT3216_64BIT:
2318 * Reset to hardware default
2320 MII_REG_BITS_ON((ANAR_ASMDIR | ANAR_PAUSE), MII_REG_ANAR, vptr->mac_regs);
2322 * Turn on ECHODIS bit in NWay-forced full mode and turn it
2323 * off it in NWay-forced half mode for NWay-forced v.s.
2324 * legacy-forced issue
2326 if (vptr->mii_status & VELOCITY_DUPLEX_FULL)
2327 MII_REG_BITS_ON(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs);
2329 MII_REG_BITS_OFF(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs);
2332 case PHYID_MARVELL_1000:
2333 case PHYID_MARVELL_1000S:
2335 * Assert CRS on Transmit
2337 MII_REG_BITS_ON(PSCR_ACRSTX, MII_REG_PSCR, vptr->mac_regs);
2339 * Reset to hardware default
2341 MII_REG_BITS_ON((ANAR_ASMDIR | ANAR_PAUSE), MII_REG_ANAR, vptr->mac_regs);
2346 velocity_mii_read(vptr->mac_regs, MII_REG_BMCR, &BMCR);
2347 if (BMCR & BMCR_ISO) {
2349 velocity_mii_write(vptr->mac_regs, MII_REG_BMCR, BMCR);
2354 * safe_disable_mii_autopoll - autopoll off
2355 * @regs: velocity registers
2357 * Turn off the autopoll and wait for it to disable on the chip
2360 static void safe_disable_mii_autopoll(struct mac_regs __iomem * regs)
2364 /* turn off MAUTO */
2365 writeb(0, ®s->MIICR);
2366 for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
2368 if (BYTE_REG_BITS_IS_ON(MIISR_MIDLE, ®s->MIISR))
2374 * enable_mii_autopoll - turn on autopolling
2375 * @regs: velocity registers
2377 * Enable the MII link status autopoll feature on the Velocity
2378 * hardware. Wait for it to enable.
2381 static void enable_mii_autopoll(struct mac_regs __iomem * regs)
2385 writeb(0, &(regs->MIICR));
2386 writeb(MIIADR_SWMPL, ®s->MIIADR);
2388 for (ii = 0; ii < W_MAX_TIMEOUT; ii++) {
2390 if (BYTE_REG_BITS_IS_ON(MIISR_MIDLE, ®s->MIISR))
2394 writeb(MIICR_MAUTO, ®s->MIICR);
2396 for (ii = 0; ii < W_MAX_TIMEOUT; ii++) {
2398 if (!BYTE_REG_BITS_IS_ON(MIISR_MIDLE, ®s->MIISR))
2405 * velocity_mii_read - read MII data
2406 * @regs: velocity registers
2407 * @index: MII register index
2408 * @data: buffer for received data
2410 * Perform a single read of an MII 16bit register. Returns zero
2411 * on success or -ETIMEDOUT if the PHY did not respond.
2414 static int velocity_mii_read(struct mac_regs __iomem *regs, u8 index, u16 *data)
2419 * Disable MIICR_MAUTO, so that mii addr can be set normally
2421 safe_disable_mii_autopoll(regs);
2423 writeb(index, ®s->MIIADR);
2425 BYTE_REG_BITS_ON(MIICR_RCMD, ®s->MIICR);
2427 for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
2428 if (!(readb(®s->MIICR) & MIICR_RCMD))
2432 *data = readw(®s->MIIDATA);
2434 enable_mii_autopoll(regs);
2435 if (ww == W_MAX_TIMEOUT)
2441 * velocity_mii_write - write MII data
2442 * @regs: velocity registers
2443 * @index: MII register index
2444 * @data: 16bit data for the MII register
2446 * Perform a single write to an MII 16bit register. Returns zero
2447 * on success or -ETIMEDOUT if the PHY did not respond.
2450 static int velocity_mii_write(struct mac_regs __iomem *regs, u8 mii_addr, u16 data)
2455 * Disable MIICR_MAUTO, so that mii addr can be set normally
2457 safe_disable_mii_autopoll(regs);
2459 /* MII reg offset */
2460 writeb(mii_addr, ®s->MIIADR);
2462 writew(data, ®s->MIIDATA);
2464 /* turn on MIICR_WCMD */
2465 BYTE_REG_BITS_ON(MIICR_WCMD, ®s->MIICR);
2467 /* W_MAX_TIMEOUT is the timeout period */
2468 for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
2470 if (!(readb(®s->MIICR) & MIICR_WCMD))
2473 enable_mii_autopoll(regs);
2475 if (ww == W_MAX_TIMEOUT)
2481 * velocity_get_opt_media_mode - get media selection
2482 * @vptr: velocity adapter
2484 * Get the media mode stored in EEPROM or module options and load
2485 * mii_status accordingly. The requested link state information
2489 static u32 velocity_get_opt_media_mode(struct velocity_info *vptr)
2493 switch (vptr->options.spd_dpx) {
2495 status = VELOCITY_AUTONEG_ENABLE;
2497 case SPD_DPX_100_FULL:
2498 status = VELOCITY_SPEED_100 | VELOCITY_DUPLEX_FULL;
2500 case SPD_DPX_10_FULL:
2501 status = VELOCITY_SPEED_10 | VELOCITY_DUPLEX_FULL;
2503 case SPD_DPX_100_HALF:
2504 status = VELOCITY_SPEED_100;
2506 case SPD_DPX_10_HALF:
2507 status = VELOCITY_SPEED_10;
2510 vptr->mii_status = status;
2515 * mii_set_auto_on - autonegotiate on
2518 * Enable autonegotation on this interface
2521 static void mii_set_auto_on(struct velocity_info *vptr)
2523 if (MII_REG_BITS_IS_ON(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs))
2524 MII_REG_BITS_ON(BMCR_REAUTO, MII_REG_BMCR, vptr->mac_regs);
2526 MII_REG_BITS_ON(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs);
2531 static void mii_set_auto_off(struct velocity_info * vptr)
2533 MII_REG_BITS_OFF(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs);
2538 * set_mii_flow_control - flow control setup
2539 * @vptr: velocity interface
2541 * Set up the flow control on this interface according to
2542 * the supplied user/eeprom options.
2545 static void set_mii_flow_control(struct velocity_info *vptr)
2547 /*Enable or Disable PAUSE in ANAR */
2548 switch (vptr->options.flow_cntl) {
2550 MII_REG_BITS_OFF(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs);
2551 MII_REG_BITS_ON(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs);
2555 MII_REG_BITS_ON(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs);
2556 MII_REG_BITS_ON(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs);
2559 case FLOW_CNTL_TX_RX:
2560 MII_REG_BITS_ON(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs);
2561 MII_REG_BITS_ON(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs);
2564 case FLOW_CNTL_DISABLE:
2565 MII_REG_BITS_OFF(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs);
2566 MII_REG_BITS_OFF(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs);
2574 * velocity_set_media_mode - set media mode
2575 * @mii_status: old MII link state
2577 * Check the media link state and configure the flow control
2578 * PHY and also velocity hardware setup accordingly. In particular
2579 * we need to set up CD polling and frame bursting.
2582 static int velocity_set_media_mode(struct velocity_info *vptr, u32 mii_status)
2585 struct mac_regs __iomem * regs = vptr->mac_regs;
2587 vptr->mii_status = mii_check_media_mode(vptr->mac_regs);
2588 curr_status = vptr->mii_status & (~VELOCITY_LINK_FAIL);
2590 /* Set mii link status */
2591 set_mii_flow_control(vptr);
2594 Check if new status is consisent with current status
2595 if (((mii_status & curr_status) & VELOCITY_AUTONEG_ENABLE)
2596 || (mii_status==curr_status)) {
2597 vptr->mii_status=mii_check_media_mode(vptr->mac_regs);
2598 vptr->mii_status=check_connection_type(vptr->mac_regs);
2599 VELOCITY_PRT(MSG_LEVEL_INFO, "Velocity link no change\n");
2604 if (PHYID_GET_PHY_ID(vptr->phy_id) == PHYID_CICADA_CS8201) {
2605 MII_REG_BITS_ON(AUXCR_MDPPS, MII_REG_AUXCR, vptr->mac_regs);
2609 * If connection type is AUTO
2611 if (mii_status & VELOCITY_AUTONEG_ENABLE) {
2612 VELOCITY_PRT(MSG_LEVEL_INFO, "Velocity is AUTO mode\n");
2613 /* clear force MAC mode bit */
2614 BYTE_REG_BITS_OFF(CHIPGCR_FCMODE, ®s->CHIPGCR);
2615 /* set duplex mode of MAC according to duplex mode of MII */
2616 MII_REG_BITS_ON(ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10, MII_REG_ANAR, vptr->mac_regs);
2617 MII_REG_BITS_ON(G1000CR_1000FD | G1000CR_1000, MII_REG_G1000CR, vptr->mac_regs);
2618 MII_REG_BITS_ON(BMCR_SPEED1G, MII_REG_BMCR, vptr->mac_regs);
2620 /* enable AUTO-NEGO mode */
2621 mii_set_auto_on(vptr);
2627 * 1. if it's 3119, disable frame bursting in halfduplex mode
2628 * and enable it in fullduplex mode
2629 * 2. set correct MII/GMII and half/full duplex mode in CHIPGCR
2630 * 3. only enable CD heart beat counter in 10HD mode
2633 /* set force MAC mode bit */
2634 BYTE_REG_BITS_ON(CHIPGCR_FCMODE, ®s->CHIPGCR);
2636 CHIPGCR = readb(®s->CHIPGCR);
2637 CHIPGCR &= ~CHIPGCR_FCGMII;
2639 if (mii_status & VELOCITY_DUPLEX_FULL) {
2640 CHIPGCR |= CHIPGCR_FCFDX;
2641 writeb(CHIPGCR, ®s->CHIPGCR);
2642 VELOCITY_PRT(MSG_LEVEL_INFO, "set Velocity to forced full mode\n");
2643 if (vptr->rev_id < REV_ID_VT3216_A0)
2644 BYTE_REG_BITS_OFF(TCR_TB2BDIS, ®s->TCR);
2646 CHIPGCR &= ~CHIPGCR_FCFDX;
2647 VELOCITY_PRT(MSG_LEVEL_INFO, "set Velocity to forced half mode\n");
2648 writeb(CHIPGCR, ®s->CHIPGCR);
2649 if (vptr->rev_id < REV_ID_VT3216_A0)
2650 BYTE_REG_BITS_ON(TCR_TB2BDIS, ®s->TCR);
2653 MII_REG_BITS_OFF(G1000CR_1000FD | G1000CR_1000, MII_REG_G1000CR, vptr->mac_regs);
2655 if (!(mii_status & VELOCITY_DUPLEX_FULL) && (mii_status & VELOCITY_SPEED_10)) {
2656 BYTE_REG_BITS_OFF(TESTCFG_HBDIS, ®s->TESTCFG);
2658 BYTE_REG_BITS_ON(TESTCFG_HBDIS, ®s->TESTCFG);
2660 /* MII_REG_BITS_OFF(BMCR_SPEED1G, MII_REG_BMCR, vptr->mac_regs); */
2661 velocity_mii_read(vptr->mac_regs, MII_REG_ANAR, &ANAR);
2662 ANAR &= (~(ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10));
2663 if (mii_status & VELOCITY_SPEED_100) {
2664 if (mii_status & VELOCITY_DUPLEX_FULL)
2669 if (mii_status & VELOCITY_DUPLEX_FULL)
2674 velocity_mii_write(vptr->mac_regs, MII_REG_ANAR, ANAR);
2675 /* enable AUTO-NEGO mode */
2676 mii_set_auto_on(vptr);
2677 /* MII_REG_BITS_ON(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs); */
2679 /* vptr->mii_status=mii_check_media_mode(vptr->mac_regs); */
2680 /* vptr->mii_status=check_connection_type(vptr->mac_regs); */
2681 return VELOCITY_LINK_CHANGE;
2685 * mii_check_media_mode - check media state
2686 * @regs: velocity registers
2688 * Check the current MII status and determine the link status
2692 static u32 mii_check_media_mode(struct mac_regs __iomem * regs)
2697 if (!MII_REG_BITS_IS_ON(BMSR_LNK, MII_REG_BMSR, regs))
2698 status |= VELOCITY_LINK_FAIL;
2700 if (MII_REG_BITS_IS_ON(G1000CR_1000FD, MII_REG_G1000CR, regs))
2701 status |= VELOCITY_SPEED_1000 | VELOCITY_DUPLEX_FULL;
2702 else if (MII_REG_BITS_IS_ON(G1000CR_1000, MII_REG_G1000CR, regs))
2703 status |= (VELOCITY_SPEED_1000);
2705 velocity_mii_read(regs, MII_REG_ANAR, &ANAR);
2706 if (ANAR & ANAR_TXFD)
2707 status |= (VELOCITY_SPEED_100 | VELOCITY_DUPLEX_FULL);
2708 else if (ANAR & ANAR_TX)
2709 status |= VELOCITY_SPEED_100;
2710 else if (ANAR & ANAR_10FD)
2711 status |= (VELOCITY_SPEED_10 | VELOCITY_DUPLEX_FULL);
2713 status |= (VELOCITY_SPEED_10);
2716 if (MII_REG_BITS_IS_ON(BMCR_AUTO, MII_REG_BMCR, regs)) {
2717 velocity_mii_read(regs, MII_REG_ANAR, &ANAR);
2718 if ((ANAR & (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10))
2719 == (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10)) {
2720 if (MII_REG_BITS_IS_ON(G1000CR_1000 | G1000CR_1000FD, MII_REG_G1000CR, regs))
2721 status |= VELOCITY_AUTONEG_ENABLE;
2728 static u32 check_connection_type(struct mac_regs __iomem * regs)
2733 PHYSR0 = readb(®s->PHYSR0);
2736 if (!(PHYSR0 & PHYSR0_LINKGD))
2737 status|=VELOCITY_LINK_FAIL;
2740 if (PHYSR0 & PHYSR0_FDPX)
2741 status |= VELOCITY_DUPLEX_FULL;
2743 if (PHYSR0 & PHYSR0_SPDG)
2744 status |= VELOCITY_SPEED_1000;
2745 else if (PHYSR0 & PHYSR0_SPD10)
2746 status |= VELOCITY_SPEED_10;
2748 status |= VELOCITY_SPEED_100;
2750 if (MII_REG_BITS_IS_ON(BMCR_AUTO, MII_REG_BMCR, regs)) {
2751 velocity_mii_read(regs, MII_REG_ANAR, &ANAR);
2752 if ((ANAR & (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10))
2753 == (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10)) {
2754 if (MII_REG_BITS_IS_ON(G1000CR_1000 | G1000CR_1000FD, MII_REG_G1000CR, regs))
2755 status |= VELOCITY_AUTONEG_ENABLE;
2763 * enable_flow_control_ability - flow control
2764 * @vptr: veloity to configure
2766 * Set up flow control according to the flow control options
2767 * determined by the eeprom/configuration.
2770 static void enable_flow_control_ability(struct velocity_info *vptr)
2773 struct mac_regs __iomem * regs = vptr->mac_regs;
2775 switch (vptr->options.flow_cntl) {
2777 case FLOW_CNTL_DEFAULT:
2778 if (BYTE_REG_BITS_IS_ON(PHYSR0_RXFLC, ®s->PHYSR0))
2779 writel(CR0_FDXRFCEN, ®s->CR0Set);
2781 writel(CR0_FDXRFCEN, ®s->CR0Clr);
2783 if (BYTE_REG_BITS_IS_ON(PHYSR0_TXFLC, ®s->PHYSR0))
2784 writel(CR0_FDXTFCEN, ®s->CR0Set);
2786 writel(CR0_FDXTFCEN, ®s->CR0Clr);
2790 writel(CR0_FDXTFCEN, ®s->CR0Set);
2791 writel(CR0_FDXRFCEN, ®s->CR0Clr);
2795 writel(CR0_FDXRFCEN, ®s->CR0Set);
2796 writel(CR0_FDXTFCEN, ®s->CR0Clr);
2799 case FLOW_CNTL_TX_RX:
2800 writel(CR0_FDXTFCEN, ®s->CR0Set);
2801 writel(CR0_FDXRFCEN, ®s->CR0Set);
2804 case FLOW_CNTL_DISABLE:
2805 writel(CR0_FDXRFCEN, ®s->CR0Clr);
2806 writel(CR0_FDXTFCEN, ®s->CR0Clr);
2817 * velocity_ethtool_up - pre hook for ethtool
2818 * @dev: network device
2820 * Called before an ethtool operation. We need to make sure the
2821 * chip is out of D3 state before we poke at it.
2824 static int velocity_ethtool_up(struct net_device *dev)
2826 struct velocity_info *vptr = netdev_priv(dev);
2827 if (!netif_running(dev))
2828 pci_set_power_state(vptr->pdev, PCI_D0);
2833 * velocity_ethtool_down - post hook for ethtool
2834 * @dev: network device
2836 * Called after an ethtool operation. Restore the chip back to D3
2837 * state if it isn't running.
2840 static void velocity_ethtool_down(struct net_device *dev)
2842 struct velocity_info *vptr = netdev_priv(dev);
2843 if (!netif_running(dev))
2844 pci_set_power_state(vptr->pdev, PCI_D3hot);
2847 static int velocity_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
2849 struct velocity_info *vptr = netdev_priv(dev);
2850 struct mac_regs __iomem * regs = vptr->mac_regs;
2852 status = check_connection_type(vptr->mac_regs);
2854 cmd->supported = SUPPORTED_TP |
2856 SUPPORTED_10baseT_Half |
2857 SUPPORTED_10baseT_Full |
2858 SUPPORTED_100baseT_Half |
2859 SUPPORTED_100baseT_Full |
2860 SUPPORTED_1000baseT_Half |
2861 SUPPORTED_1000baseT_Full;
2862 if (status & VELOCITY_SPEED_1000)
2863 cmd->speed = SPEED_1000;
2864 else if (status & VELOCITY_SPEED_100)
2865 cmd->speed = SPEED_100;
2867 cmd->speed = SPEED_10;
2868 cmd->autoneg = (status & VELOCITY_AUTONEG_ENABLE) ? AUTONEG_ENABLE : AUTONEG_DISABLE;
2869 cmd->port = PORT_TP;
2870 cmd->transceiver = XCVR_INTERNAL;
2871 cmd->phy_address = readb(®s->MIIADR) & 0x1F;
2873 if (status & VELOCITY_DUPLEX_FULL)
2874 cmd->duplex = DUPLEX_FULL;
2876 cmd->duplex = DUPLEX_HALF;
2881 static int velocity_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
2883 struct velocity_info *vptr = netdev_priv(dev);
2888 curr_status = check_connection_type(vptr->mac_regs);
2889 curr_status &= (~VELOCITY_LINK_FAIL);
2891 new_status |= ((cmd->autoneg) ? VELOCITY_AUTONEG_ENABLE : 0);
2892 new_status |= ((cmd->speed == SPEED_100) ? VELOCITY_SPEED_100 : 0);
2893 new_status |= ((cmd->speed == SPEED_10) ? VELOCITY_SPEED_10 : 0);
2894 new_status |= ((cmd->duplex == DUPLEX_FULL) ? VELOCITY_DUPLEX_FULL : 0);
2896 if ((new_status & VELOCITY_AUTONEG_ENABLE) && (new_status != (curr_status | VELOCITY_AUTONEG_ENABLE)))
2899 velocity_set_media_mode(vptr, new_status);
2904 static u32 velocity_get_link(struct net_device *dev)
2906 struct velocity_info *vptr = netdev_priv(dev);
2907 struct mac_regs __iomem * regs = vptr->mac_regs;
2908 return BYTE_REG_BITS_IS_ON(PHYSR0_LINKGD, ®s->PHYSR0) ? 1 : 0;
2911 static void velocity_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
2913 struct velocity_info *vptr = netdev_priv(dev);
2914 strcpy(info->driver, VELOCITY_NAME);
2915 strcpy(info->version, VELOCITY_VERSION);
2916 strcpy(info->bus_info, pci_name(vptr->pdev));
2919 static void velocity_ethtool_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
2921 struct velocity_info *vptr = netdev_priv(dev);
2922 wol->supported = WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_ARP;
2923 wol->wolopts |= WAKE_MAGIC;
2925 if (vptr->wol_opts & VELOCITY_WOL_PHY)
2926 wol.wolopts|=WAKE_PHY;
2928 if (vptr->wol_opts & VELOCITY_WOL_UCAST)
2929 wol->wolopts |= WAKE_UCAST;
2930 if (vptr->wol_opts & VELOCITY_WOL_ARP)
2931 wol->wolopts |= WAKE_ARP;
2932 memcpy(&wol->sopass, vptr->wol_passwd, 6);
2935 static int velocity_ethtool_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
2937 struct velocity_info *vptr = netdev_priv(dev);
2939 if (!(wol->wolopts & (WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_ARP)))
2941 vptr->wol_opts = VELOCITY_WOL_MAGIC;
2944 if (wol.wolopts & WAKE_PHY) {
2945 vptr->wol_opts|=VELOCITY_WOL_PHY;
2946 vptr->flags |=VELOCITY_FLAGS_WOL_ENABLED;
2950 if (wol->wolopts & WAKE_MAGIC) {
2951 vptr->wol_opts |= VELOCITY_WOL_MAGIC;
2952 vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED;
2954 if (wol->wolopts & WAKE_UCAST) {
2955 vptr->wol_opts |= VELOCITY_WOL_UCAST;
2956 vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED;
2958 if (wol->wolopts & WAKE_ARP) {
2959 vptr->wol_opts |= VELOCITY_WOL_ARP;
2960 vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED;
2962 memcpy(vptr->wol_passwd, wol->sopass, 6);
2966 static u32 velocity_get_msglevel(struct net_device *dev)
2971 static void velocity_set_msglevel(struct net_device *dev, u32 value)
2976 static const struct ethtool_ops velocity_ethtool_ops = {
2977 .get_settings = velocity_get_settings,
2978 .set_settings = velocity_set_settings,
2979 .get_drvinfo = velocity_get_drvinfo,
2980 .get_wol = velocity_ethtool_get_wol,
2981 .set_wol = velocity_ethtool_set_wol,
2982 .get_msglevel = velocity_get_msglevel,
2983 .set_msglevel = velocity_set_msglevel,
2984 .get_link = velocity_get_link,
2985 .begin = velocity_ethtool_up,
2986 .complete = velocity_ethtool_down
2990 * velocity_mii_ioctl - MII ioctl handler
2991 * @dev: network device
2992 * @ifr: the ifreq block for the ioctl
2995 * Process MII requests made via ioctl from the network layer. These
2996 * are used by tools like kudzu to interrogate the link state of the
3000 static int velocity_mii_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
3002 struct velocity_info *vptr = netdev_priv(dev);
3003 struct mac_regs __iomem * regs = vptr->mac_regs;
3004 unsigned long flags;
3005 struct mii_ioctl_data *miidata = if_mii(ifr);
3010 miidata->phy_id = readb(®s->MIIADR) & 0x1f;
3013 if (!capable(CAP_NET_ADMIN))
3015 if(velocity_mii_read(vptr->mac_regs, miidata->reg_num & 0x1f, &(miidata->val_out)) < 0)
3019 if (!capable(CAP_NET_ADMIN))
3021 spin_lock_irqsave(&vptr->lock, flags);
3022 err = velocity_mii_write(vptr->mac_regs, miidata->reg_num & 0x1f, miidata->val_in);
3023 spin_unlock_irqrestore(&vptr->lock, flags);
3024 check_connection_type(vptr->mac_regs);
3037 * velocity_save_context - save registers
3039 * @context: buffer for stored context
3041 * Retrieve the current configuration from the velocity hardware
3042 * and stash it in the context structure, for use by the context
3043 * restore functions. This allows us to save things we need across
3047 static void velocity_save_context(struct velocity_info *vptr, struct velocity_context * context)
3049 struct mac_regs __iomem * regs = vptr->mac_regs;
3051 u8 __iomem *ptr = (u8 __iomem *)regs;
3053 for (i = MAC_REG_PAR; i < MAC_REG_CR0_CLR; i += 4)
3054 *((u32 *) (context->mac_reg + i)) = readl(ptr + i);
3056 for (i = MAC_REG_MAR; i < MAC_REG_TDCSR_CLR; i += 4)
3057 *((u32 *) (context->mac_reg + i)) = readl(ptr + i);
3059 for (i = MAC_REG_RDBASE_LO; i < MAC_REG_FIFO_TEST0; i += 4)
3060 *((u32 *) (context->mac_reg + i)) = readl(ptr + i);
3065 * velocity_restore_context - restore registers
3067 * @context: buffer for stored context
3069 * Reload the register configuration from the velocity context
3070 * created by velocity_save_context.
3073 static void velocity_restore_context(struct velocity_info *vptr, struct velocity_context *context)
3075 struct mac_regs __iomem * regs = vptr->mac_regs;
3077 u8 __iomem *ptr = (u8 __iomem *)regs;
3079 for (i = MAC_REG_PAR; i < MAC_REG_CR0_SET; i += 4) {
3080 writel(*((u32 *) (context->mac_reg + i)), ptr + i);
3084 for (i = MAC_REG_CR1_SET; i < MAC_REG_CR0_CLR; i++) {
3086 writeb(~(*((u8 *) (context->mac_reg + i))), ptr + i + 4);
3088 writeb(*((u8 *) (context->mac_reg + i)), ptr + i);
3091 for (i = MAC_REG_MAR; i < MAC_REG_IMR; i += 4) {
3092 writel(*((u32 *) (context->mac_reg + i)), ptr + i);
3095 for (i = MAC_REG_RDBASE_LO; i < MAC_REG_FIFO_TEST0; i += 4) {
3096 writel(*((u32 *) (context->mac_reg + i)), ptr + i);
3099 for (i = MAC_REG_TDCSR_SET; i <= MAC_REG_RDCSR_SET; i++) {
3100 writeb(*((u8 *) (context->mac_reg + i)), ptr + i);
3106 * wol_calc_crc - WOL CRC
3107 * @pattern: data pattern
3108 * @mask_pattern: mask
3110 * Compute the wake on lan crc hashes for the packet header
3111 * we are interested in.
3114 static u16 wol_calc_crc(int size, u8 * pattern, u8 *mask_pattern)
3120 for (i = 0; i < size; i++) {
3121 mask = mask_pattern[i];
3123 /* Skip this loop if the mask equals to zero */
3127 for (j = 0; j < 8; j++) {
3128 if ((mask & 0x01) == 0) {
3133 crc = crc_ccitt(crc, &(pattern[i * 8 + j]), 1);
3136 /* Finally, invert the result once to get the correct data */
3138 return bitrev32(crc) >> 16;
3142 * velocity_set_wol - set up for wake on lan
3143 * @vptr: velocity to set WOL status on
3145 * Set a card up for wake on lan either by unicast or by
3148 * FIXME: check static buffer is safe here
3151 static int velocity_set_wol(struct velocity_info *vptr)
3153 struct mac_regs __iomem * regs = vptr->mac_regs;
3157 static u32 mask_pattern[2][4] = {
3158 {0x00203000, 0x000003C0, 0x00000000, 0x0000000}, /* ARP */
3159 {0xfffff000, 0xffffffff, 0xffffffff, 0x000ffff} /* Magic Packet */
3162 writew(0xFFFF, ®s->WOLCRClr);
3163 writeb(WOLCFG_SAB | WOLCFG_SAM, ®s->WOLCFGSet);
3164 writew(WOLCR_MAGIC_EN, ®s->WOLCRSet);
3167 if (vptr->wol_opts & VELOCITY_WOL_PHY)
3168 writew((WOLCR_LINKON_EN|WOLCR_LINKOFF_EN), ®s->WOLCRSet);
3171 if (vptr->wol_opts & VELOCITY_WOL_UCAST) {
3172 writew(WOLCR_UNICAST_EN, ®s->WOLCRSet);
3175 if (vptr->wol_opts & VELOCITY_WOL_ARP) {
3176 struct arp_packet *arp = (struct arp_packet *) buf;
3178 memset(buf, 0, sizeof(struct arp_packet) + 7);
3180 for (i = 0; i < 4; i++)
3181 writel(mask_pattern[0][i], ®s->ByteMask[0][i]);
3183 arp->type = htons(ETH_P_ARP);
3184 arp->ar_op = htons(1);
3186 memcpy(arp->ar_tip, vptr->ip_addr, 4);
3188 crc = wol_calc_crc((sizeof(struct arp_packet) + 7) / 8, buf,
3189 (u8 *) & mask_pattern[0][0]);
3191 writew(crc, ®s->PatternCRC[0]);
3192 writew(WOLCR_ARP_EN, ®s->WOLCRSet);
3195 BYTE_REG_BITS_ON(PWCFG_WOLTYPE, ®s->PWCFGSet);
3196 BYTE_REG_BITS_ON(PWCFG_LEGACY_WOLEN, ®s->PWCFGSet);
3198 writew(0x0FFF, ®s->WOLSRClr);
3200 if (vptr->mii_status & VELOCITY_AUTONEG_ENABLE) {
3201 if (PHYID_GET_PHY_ID(vptr->phy_id) == PHYID_CICADA_CS8201)
3202 MII_REG_BITS_ON(AUXCR_MDPPS, MII_REG_AUXCR, vptr->mac_regs);
3204 MII_REG_BITS_OFF(G1000CR_1000FD | G1000CR_1000, MII_REG_G1000CR, vptr->mac_regs);
3207 if (vptr->mii_status & VELOCITY_SPEED_1000)
3208 MII_REG_BITS_ON(BMCR_REAUTO, MII_REG_BMCR, vptr->mac_regs);
3210 BYTE_REG_BITS_ON(CHIPGCR_FCMODE, ®s->CHIPGCR);
3214 GCR = readb(®s->CHIPGCR);
3215 GCR = (GCR & ~CHIPGCR_FCGMII) | CHIPGCR_FCFDX;
3216 writeb(GCR, ®s->CHIPGCR);
3219 BYTE_REG_BITS_OFF(ISR_PWEI, ®s->ISR);
3220 /* Turn on SWPTAG just before entering power mode */
3221 BYTE_REG_BITS_ON(STICKHW_SWPTAG, ®s->STICKHW);
3222 /* Go to bed ..... */
3223 BYTE_REG_BITS_ON((STICKHW_DS1 | STICKHW_DS0), ®s->STICKHW);
3228 static int velocity_suspend(struct pci_dev *pdev, pm_message_t state)
3230 struct net_device *dev = pci_get_drvdata(pdev);
3231 struct velocity_info *vptr = netdev_priv(dev);
3232 unsigned long flags;
3234 if(!netif_running(vptr->dev))
3237 netif_device_detach(vptr->dev);
3239 spin_lock_irqsave(&vptr->lock, flags);
3240 pci_save_state(pdev);
3242 if (vptr->flags & VELOCITY_FLAGS_WOL_ENABLED) {
3243 velocity_get_ip(vptr);
3244 velocity_save_context(vptr, &vptr->context);
3245 velocity_shutdown(vptr);
3246 velocity_set_wol(vptr);
3247 pci_enable_wake(pdev, 3, 1);
3248 pci_set_power_state(pdev, PCI_D3hot);
3250 velocity_save_context(vptr, &vptr->context);
3251 velocity_shutdown(vptr);
3252 pci_disable_device(pdev);
3253 pci_set_power_state(pdev, pci_choose_state(pdev, state));
3256 pci_set_power_state(pdev, pci_choose_state(pdev, state));
3258 spin_unlock_irqrestore(&vptr->lock, flags);
3262 static int velocity_resume(struct pci_dev *pdev)
3264 struct net_device *dev = pci_get_drvdata(pdev);
3265 struct velocity_info *vptr = netdev_priv(dev);
3266 unsigned long flags;
3269 if(!netif_running(vptr->dev))
3272 pci_set_power_state(pdev, PCI_D0);
3273 pci_enable_wake(pdev, 0, 0);
3274 pci_restore_state(pdev);
3276 mac_wol_reset(vptr->mac_regs);
3278 spin_lock_irqsave(&vptr->lock, flags);
3279 velocity_restore_context(vptr, &vptr->context);
3280 velocity_init_registers(vptr, VELOCITY_INIT_WOL);
3281 mac_disable_int(vptr->mac_regs);
3283 velocity_tx_srv(vptr, 0);
3285 for (i = 0; i < vptr->num_txq; i++) {
3286 if (vptr->td_used[i]) {
3287 mac_tx_queue_wake(vptr->mac_regs, i);
3291 mac_enable_int(vptr->mac_regs);
3292 spin_unlock_irqrestore(&vptr->lock, flags);
3293 netif_device_attach(vptr->dev);
3300 static int velocity_netdev_event(struct notifier_block *nb, unsigned long notification, void *ptr)
3302 struct in_ifaddr *ifa = (struct in_ifaddr *) ptr;
3305 struct net_device *dev = ifa->ifa_dev->dev;
3306 struct velocity_info *vptr;
3307 unsigned long flags;
3309 spin_lock_irqsave(&velocity_dev_list_lock, flags);
3310 list_for_each_entry(vptr, &velocity_dev_list, list) {
3311 if (vptr->dev == dev) {
3312 velocity_get_ip(vptr);
3316 spin_unlock_irqrestore(&velocity_dev_list_lock, flags);