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/config.h>
51 #include <linux/init.h>
53 #include <linux/errno.h>
54 #include <linux/ioport.h>
55 #include <linux/pci.h>
56 #include <linux/kernel.h>
57 #include <linux/netdevice.h>
58 #include <linux/etherdevice.h>
59 #include <linux/skbuff.h>
60 #include <linux/delay.h>
61 #include <linux/timer.h>
62 #include <linux/slab.h>
63 #include <linux/interrupt.h>
64 #include <linux/string.h>
65 #include <linux/wait.h>
68 #include <linux/config.h>
69 #include <asm/uaccess.h>
70 #include <linux/proc_fs.h>
71 #include <linux/inetdevice.h>
72 #include <linux/reboot.h>
73 #include <linux/ethtool.h>
74 #include <linux/mii.h>
76 #include <linux/if_arp.h>
78 #include <linux/tcp.h>
79 #include <linux/udp.h>
80 #include <linux/crc-ccitt.h>
81 #include <linux/crc32.h>
83 #include "via-velocity.h"
86 static int velocity_nics = 0;
87 static int msglevel = MSG_LEVEL_INFO;
90 static int velocity_mii_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd);
91 static struct ethtool_ops velocity_ethtool_ops;
97 MODULE_AUTHOR("VIA Networking Technologies, Inc.");
98 MODULE_LICENSE("GPL");
99 MODULE_DESCRIPTION("VIA Networking Velocity Family Gigabit Ethernet Adapter Driver");
101 #define VELOCITY_PARAM(N,D) \
102 static int N[MAX_UNITS]=OPTION_DEFAULT;\
103 module_param_array(N, int, NULL, 0); \
104 MODULE_PARM_DESC(N, D);
106 #define RX_DESC_MIN 64
107 #define RX_DESC_MAX 255
108 #define RX_DESC_DEF 64
109 VELOCITY_PARAM(RxDescriptors, "Number of receive descriptors");
111 #define TX_DESC_MIN 16
112 #define TX_DESC_MAX 256
113 #define TX_DESC_DEF 64
114 VELOCITY_PARAM(TxDescriptors, "Number of transmit descriptors");
116 #define VLAN_ID_MIN 0
117 #define VLAN_ID_MAX 4095
118 #define VLAN_ID_DEF 0
119 /* VID_setting[] is used for setting the VID of NIC.
123 VELOCITY_PARAM(VID_setting, "802.1Q VLAN ID");
125 #define RX_THRESH_MIN 0
126 #define RX_THRESH_MAX 3
127 #define RX_THRESH_DEF 0
128 /* rx_thresh[] is used for controlling the receive fifo threshold.
129 0: indicate the rxfifo threshold is 128 bytes.
130 1: indicate the rxfifo threshold is 512 bytes.
131 2: indicate the rxfifo threshold is 1024 bytes.
132 3: indicate the rxfifo threshold is store & forward.
134 VELOCITY_PARAM(rx_thresh, "Receive fifo threshold");
136 #define DMA_LENGTH_MIN 0
137 #define DMA_LENGTH_MAX 7
138 #define DMA_LENGTH_DEF 0
140 /* DMA_length[] is used for controlling the DMA length
147 6: SF(flush till emply)
148 7: SF(flush till emply)
150 VELOCITY_PARAM(DMA_length, "DMA length");
152 #define TAGGING_DEF 0
153 /* enable_tagging[] is used for enabling 802.1Q VID tagging.
154 0: disable VID seeting(default).
155 1: enable VID setting.
157 VELOCITY_PARAM(enable_tagging, "Enable 802.1Q tagging");
159 #define IP_ALIG_DEF 0
160 /* IP_byte_align[] is used for IP header DWORD byte aligned
161 0: indicate the IP header won't be DWORD byte aligned.(Default) .
162 1: indicate the IP header will be DWORD byte aligned.
163 In some enviroment, the IP header should be DWORD byte aligned,
164 or the packet will be droped when we receive it. (eg: IPVS)
166 VELOCITY_PARAM(IP_byte_align, "Enable IP header dword aligned");
168 #define TX_CSUM_DEF 1
169 /* txcsum_offload[] is used for setting the checksum offload ability of NIC.
170 (We only support RX checksum offload now)
171 0: disable csum_offload[checksum offload
172 1: enable checksum offload. (Default)
174 VELOCITY_PARAM(txcsum_offload, "Enable transmit packet checksum offload");
176 #define FLOW_CNTL_DEF 1
177 #define FLOW_CNTL_MIN 1
178 #define FLOW_CNTL_MAX 5
180 /* flow_control[] is used for setting the flow control ability of NIC.
181 1: hardware deafult - AUTO (default). Use Hardware default value in ANAR.
182 2: enable TX flow control.
183 3: enable RX flow control.
184 4: enable RX/TX flow control.
187 VELOCITY_PARAM(flow_control, "Enable flow control ability");
189 #define MED_LNK_DEF 0
190 #define MED_LNK_MIN 0
191 #define MED_LNK_MAX 4
192 /* speed_duplex[] is used for setting the speed and duplex mode of NIC.
193 0: indicate autonegotiation for both speed and duplex mode
194 1: indicate 100Mbps half duplex mode
195 2: indicate 100Mbps full duplex mode
196 3: indicate 10Mbps half duplex mode
197 4: indicate 10Mbps full duplex mode
200 if EEPROM have been set to the force mode, this option is ignored
203 VELOCITY_PARAM(speed_duplex, "Setting the speed and duplex mode");
205 #define VAL_PKT_LEN_DEF 0
206 /* ValPktLen[] is used for setting the checksum offload ability of NIC.
207 0: Receive frame with invalid layer 2 length (Default)
208 1: Drop frame with invalid layer 2 length
210 VELOCITY_PARAM(ValPktLen, "Receiving or Drop invalid 802.3 frame");
212 #define WOL_OPT_DEF 0
213 #define WOL_OPT_MIN 0
214 #define WOL_OPT_MAX 7
215 /* wol_opts[] is used for controlling wake on lan behavior.
216 0: Wake up if recevied a magic packet. (Default)
217 1: Wake up if link status is on/off.
218 2: Wake up if recevied an arp packet.
219 4: Wake up if recevied any unicast packet.
220 Those value can be sumed up to support more than one option.
222 VELOCITY_PARAM(wol_opts, "Wake On Lan options");
224 #define INT_WORKS_DEF 20
225 #define INT_WORKS_MIN 10
226 #define INT_WORKS_MAX 64
228 VELOCITY_PARAM(int_works, "Number of packets per interrupt services");
230 static int rx_copybreak = 200;
231 module_param(rx_copybreak, int, 0644);
232 MODULE_PARM_DESC(rx_copybreak, "Copy breakpoint for copy-only-tiny-frames");
234 static void velocity_init_info(struct pci_dev *pdev, struct velocity_info *vptr, struct velocity_info_tbl *info);
235 static int velocity_get_pci_info(struct velocity_info *, struct pci_dev *pdev);
236 static void velocity_print_info(struct velocity_info *vptr);
237 static int velocity_open(struct net_device *dev);
238 static int velocity_change_mtu(struct net_device *dev, int mtu);
239 static int velocity_xmit(struct sk_buff *skb, struct net_device *dev);
240 static int velocity_intr(int irq, void *dev_instance, struct pt_regs *regs);
241 static void velocity_set_multi(struct net_device *dev);
242 static struct net_device_stats *velocity_get_stats(struct net_device *dev);
243 static int velocity_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
244 static int velocity_close(struct net_device *dev);
245 static int velocity_receive_frame(struct velocity_info *, int idx);
246 static int velocity_alloc_rx_buf(struct velocity_info *, int idx);
247 static void velocity_free_rd_ring(struct velocity_info *vptr);
248 static void velocity_free_tx_buf(struct velocity_info *vptr, struct velocity_td_info *);
249 static int velocity_soft_reset(struct velocity_info *vptr);
250 static void mii_init(struct velocity_info *vptr, u32 mii_status);
251 static u32 velocity_get_link(struct net_device *dev);
252 static u32 velocity_get_opt_media_mode(struct velocity_info *vptr);
253 static void velocity_print_link_status(struct velocity_info *vptr);
254 static void safe_disable_mii_autopoll(struct mac_regs __iomem * regs);
255 static void velocity_shutdown(struct velocity_info *vptr);
256 static void enable_flow_control_ability(struct velocity_info *vptr);
257 static void enable_mii_autopoll(struct mac_regs __iomem * regs);
258 static int velocity_mii_read(struct mac_regs __iomem *, u8 byIdx, u16 * pdata);
259 static int velocity_mii_write(struct mac_regs __iomem *, u8 byMiiAddr, u16 data);
260 static u32 mii_check_media_mode(struct mac_regs __iomem * regs);
261 static u32 check_connection_type(struct mac_regs __iomem * regs);
262 static int velocity_set_media_mode(struct velocity_info *vptr, u32 mii_status);
266 static int velocity_suspend(struct pci_dev *pdev, pm_message_t state);
267 static int velocity_resume(struct pci_dev *pdev);
269 static int velocity_netdev_event(struct notifier_block *nb, unsigned long notification, void *ptr);
271 static struct notifier_block velocity_inetaddr_notifier = {
272 .notifier_call = velocity_netdev_event,
275 static DEFINE_SPINLOCK(velocity_dev_list_lock);
276 static LIST_HEAD(velocity_dev_list);
278 static void velocity_register_notifier(void)
280 register_inetaddr_notifier(&velocity_inetaddr_notifier);
283 static void velocity_unregister_notifier(void)
285 unregister_inetaddr_notifier(&velocity_inetaddr_notifier);
288 #else /* CONFIG_PM */
290 #define velocity_register_notifier() do {} while (0)
291 #define velocity_unregister_notifier() do {} while (0)
293 #endif /* !CONFIG_PM */
296 * Internal board variants. At the moment we have only one
299 static struct velocity_info_tbl chip_info_table[] = {
300 {CHIP_TYPE_VT6110, "VIA Networking Velocity Family Gigabit Ethernet Adapter", 256, 1, 0x00FFFFFFUL},
305 * Describe the PCI device identifiers that we support in this
306 * device driver. Used for hotplug autoloading.
309 static struct pci_device_id velocity_id_table[] __devinitdata = {
310 {PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_612X,
311 PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) chip_info_table},
315 MODULE_DEVICE_TABLE(pci, velocity_id_table);
318 * get_chip_name - identifier to name
319 * @id: chip identifier
321 * Given a chip identifier return a suitable description. Returns
322 * a pointer a static string valid while the driver is loaded.
325 static char __devinit *get_chip_name(enum chip_type chip_id)
328 for (i = 0; chip_info_table[i].name != NULL; i++)
329 if (chip_info_table[i].chip_id == chip_id)
331 return chip_info_table[i].name;
335 * velocity_remove1 - device unplug
336 * @pdev: PCI device being removed
338 * Device unload callback. Called on an unplug or on module
339 * unload for each active device that is present. Disconnects
340 * the device from the network layer and frees all the resources
343 static void __devexit velocity_remove1(struct pci_dev *pdev)
345 struct net_device *dev = pci_get_drvdata(pdev);
346 struct velocity_info *vptr = dev->priv;
351 spin_lock_irqsave(&velocity_dev_list_lock, flags);
352 if (!list_empty(&velocity_dev_list))
353 list_del(&vptr->list);
354 spin_unlock_irqrestore(&velocity_dev_list_lock, flags);
356 unregister_netdev(dev);
357 iounmap(vptr->mac_regs);
358 pci_release_regions(pdev);
359 pci_disable_device(pdev);
360 pci_set_drvdata(pdev, NULL);
367 * velocity_set_int_opt - parser for integer options
368 * @opt: pointer to option value
369 * @val: value the user requested (or -1 for default)
370 * @min: lowest value allowed
371 * @max: highest value allowed
372 * @def: default value
373 * @name: property name
376 * Set an integer property in the module options. This function does
377 * all the verification and checking as well as reporting so that
378 * we don't duplicate code for each option.
381 static void __devinit velocity_set_int_opt(int *opt, int val, int min, int max, int def, char *name, char *devname)
385 else if (val < min || val > max) {
386 VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: the value of parameter %s is invalid, the valid range is (%d-%d)\n",
387 devname, name, min, max);
390 VELOCITY_PRT(MSG_LEVEL_INFO, KERN_INFO "%s: set value of parameter %s to %d\n",
397 * velocity_set_bool_opt - parser for boolean options
398 * @opt: pointer to option value
399 * @val: value the user requested (or -1 for default)
400 * @def: default value (yes/no)
401 * @flag: numeric value to set for true.
402 * @name: property name
405 * Set a boolean property in the module options. This function does
406 * all the verification and checking as well as reporting so that
407 * we don't duplicate code for each option.
410 static void __devinit velocity_set_bool_opt(u32 * opt, int val, int def, u32 flag, char *name, char *devname)
414 *opt |= (def ? flag : 0);
415 else if (val < 0 || val > 1) {
416 printk(KERN_NOTICE "%s: the value of parameter %s is invalid, the valid range is (0-1)\n",
418 *opt |= (def ? flag : 0);
420 printk(KERN_INFO "%s: set parameter %s to %s\n",
421 devname, name, val ? "TRUE" : "FALSE");
422 *opt |= (val ? flag : 0);
427 * velocity_get_options - set options on device
428 * @opts: option structure for the device
429 * @index: index of option to use in module options array
430 * @devname: device name
432 * Turn the module and command options into a single structure
433 * for the current device
436 static void __devinit velocity_get_options(struct velocity_opt *opts, int index, char *devname)
439 velocity_set_int_opt(&opts->rx_thresh, rx_thresh[index], RX_THRESH_MIN, RX_THRESH_MAX, RX_THRESH_DEF, "rx_thresh", devname);
440 velocity_set_int_opt(&opts->DMA_length, DMA_length[index], DMA_LENGTH_MIN, DMA_LENGTH_MAX, DMA_LENGTH_DEF, "DMA_length", devname);
441 velocity_set_int_opt(&opts->numrx, RxDescriptors[index], RX_DESC_MIN, RX_DESC_MAX, RX_DESC_DEF, "RxDescriptors", devname);
442 velocity_set_int_opt(&opts->numtx, TxDescriptors[index], TX_DESC_MIN, TX_DESC_MAX, TX_DESC_DEF, "TxDescriptors", devname);
443 velocity_set_int_opt(&opts->vid, VID_setting[index], VLAN_ID_MIN, VLAN_ID_MAX, VLAN_ID_DEF, "VID_setting", devname);
444 velocity_set_bool_opt(&opts->flags, enable_tagging[index], TAGGING_DEF, VELOCITY_FLAGS_TAGGING, "enable_tagging", devname);
445 velocity_set_bool_opt(&opts->flags, txcsum_offload[index], TX_CSUM_DEF, VELOCITY_FLAGS_TX_CSUM, "txcsum_offload", devname);
446 velocity_set_int_opt(&opts->flow_cntl, flow_control[index], FLOW_CNTL_MIN, FLOW_CNTL_MAX, FLOW_CNTL_DEF, "flow_control", devname);
447 velocity_set_bool_opt(&opts->flags, IP_byte_align[index], IP_ALIG_DEF, VELOCITY_FLAGS_IP_ALIGN, "IP_byte_align", devname);
448 velocity_set_bool_opt(&opts->flags, ValPktLen[index], VAL_PKT_LEN_DEF, VELOCITY_FLAGS_VAL_PKT_LEN, "ValPktLen", devname);
449 velocity_set_int_opt((int *) &opts->spd_dpx, speed_duplex[index], MED_LNK_MIN, MED_LNK_MAX, MED_LNK_DEF, "Media link mode", devname);
450 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);
451 velocity_set_int_opt((int *) &opts->int_works, int_works[index], INT_WORKS_MIN, INT_WORKS_MAX, INT_WORKS_DEF, "Interrupt service works", devname);
452 opts->numrx = (opts->numrx & ~3);
456 * velocity_init_cam_filter - initialise CAM
457 * @vptr: velocity to program
459 * Initialize the content addressable memory used for filters. Load
460 * appropriately according to the presence of VLAN
463 static void velocity_init_cam_filter(struct velocity_info *vptr)
465 struct mac_regs __iomem * regs = vptr->mac_regs;
467 /* Turn on MCFG_PQEN, turn off MCFG_RTGOPT */
468 WORD_REG_BITS_SET(MCFG_PQEN, MCFG_RTGOPT, ®s->MCFG);
469 WORD_REG_BITS_ON(MCFG_VIDFR, ®s->MCFG);
471 /* Disable all CAMs */
472 memset(vptr->vCAMmask, 0, sizeof(u8) * 8);
473 memset(vptr->mCAMmask, 0, sizeof(u8) * 8);
474 mac_set_cam_mask(regs, vptr->vCAMmask, VELOCITY_VLAN_ID_CAM);
475 mac_set_cam_mask(regs, vptr->mCAMmask, VELOCITY_MULTICAST_CAM);
477 /* Enable first VCAM */
478 if (vptr->flags & VELOCITY_FLAGS_TAGGING) {
479 /* If Tagging option is enabled and VLAN ID is not zero, then
480 turn on MCFG_RTGOPT also */
481 if (vptr->options.vid != 0)
482 WORD_REG_BITS_ON(MCFG_RTGOPT, ®s->MCFG);
484 mac_set_cam(regs, 0, (u8 *) & (vptr->options.vid), VELOCITY_VLAN_ID_CAM);
485 vptr->vCAMmask[0] |= 1;
486 mac_set_cam_mask(regs, vptr->vCAMmask, VELOCITY_VLAN_ID_CAM);
489 mac_set_cam(regs, 0, (u8 *) &temp, VELOCITY_VLAN_ID_CAM);
491 mac_set_cam_mask(regs, (u8 *) &temp, VELOCITY_VLAN_ID_CAM);
496 * velocity_rx_reset - handle a receive reset
497 * @vptr: velocity we are resetting
499 * Reset the ownership and status for the receive ring side.
500 * Hand all the receive queue to the NIC.
503 static void velocity_rx_reset(struct velocity_info *vptr)
506 struct mac_regs __iomem * regs = vptr->mac_regs;
509 vptr->rd_dirty = vptr->rd_filled = vptr->rd_curr = 0;
512 * Init state, all RD entries belong to the NIC
514 for (i = 0; i < vptr->options.numrx; ++i)
515 vptr->rd_ring[i].rdesc0.owner = OWNED_BY_NIC;
517 writew(vptr->options.numrx, ®s->RBRDU);
518 writel(vptr->rd_pool_dma, ®s->RDBaseLo);
519 writew(0, ®s->RDIdx);
520 writew(vptr->options.numrx - 1, ®s->RDCSize);
524 * velocity_init_registers - initialise MAC registers
525 * @vptr: velocity to init
526 * @type: type of initialisation (hot or cold)
528 * Initialise the MAC on a reset or on first set up on the
532 static void velocity_init_registers(struct velocity_info *vptr,
533 enum velocity_init_type type)
535 struct mac_regs __iomem * regs = vptr->mac_regs;
541 case VELOCITY_INIT_RESET:
542 case VELOCITY_INIT_WOL:
544 netif_stop_queue(vptr->dev);
547 * Reset RX to prevent RX pointer not on the 4X location
549 velocity_rx_reset(vptr);
550 mac_rx_queue_run(regs);
551 mac_rx_queue_wake(regs);
553 mii_status = velocity_get_opt_media_mode(vptr);
554 if (velocity_set_media_mode(vptr, mii_status) != VELOCITY_LINK_CHANGE) {
555 velocity_print_link_status(vptr);
556 if (!(vptr->mii_status & VELOCITY_LINK_FAIL))
557 netif_wake_queue(vptr->dev);
560 enable_flow_control_ability(vptr);
563 writel(CR0_STOP, ®s->CR0Clr);
564 writel((CR0_DPOLL | CR0_TXON | CR0_RXON | CR0_STRT),
569 case VELOCITY_INIT_COLD:
574 velocity_soft_reset(vptr);
577 mac_eeprom_reload(regs);
578 for (i = 0; i < 6; i++) {
579 writeb(vptr->dev->dev_addr[i], &(regs->PAR[i]));
582 * clear Pre_ACPI bit.
584 BYTE_REG_BITS_OFF(CFGA_PACPI, &(regs->CFGA));
585 mac_set_rx_thresh(regs, vptr->options.rx_thresh);
586 mac_set_dma_length(regs, vptr->options.DMA_length);
588 writeb(WOLCFG_SAM | WOLCFG_SAB, ®s->WOLCFGSet);
590 * Back off algorithm use original IEEE standard
592 BYTE_REG_BITS_SET(CFGB_OFSET, (CFGB_CRANDOM | CFGB_CAP | CFGB_MBA | CFGB_BAKOPT), ®s->CFGB);
597 velocity_init_cam_filter(vptr);
600 * Set packet filter: Receive directed and broadcast address
602 velocity_set_multi(vptr->dev);
605 * Enable MII auto-polling
607 enable_mii_autopoll(regs);
609 vptr->int_mask = INT_MASK_DEF;
611 writel(cpu_to_le32(vptr->rd_pool_dma), ®s->RDBaseLo);
612 writew(vptr->options.numrx - 1, ®s->RDCSize);
613 mac_rx_queue_run(regs);
614 mac_rx_queue_wake(regs);
616 writew(vptr->options.numtx - 1, ®s->TDCSize);
618 for (i = 0; i < vptr->num_txq; i++) {
619 writel(cpu_to_le32(vptr->td_pool_dma[i]), &(regs->TDBaseLo[i]));
620 mac_tx_queue_run(regs, i);
623 init_flow_control_register(vptr);
625 writel(CR0_STOP, ®s->CR0Clr);
626 writel((CR0_DPOLL | CR0_TXON | CR0_RXON | CR0_STRT), ®s->CR0Set);
628 mii_status = velocity_get_opt_media_mode(vptr);
629 netif_stop_queue(vptr->dev);
631 mii_init(vptr, mii_status);
633 if (velocity_set_media_mode(vptr, mii_status) != VELOCITY_LINK_CHANGE) {
634 velocity_print_link_status(vptr);
635 if (!(vptr->mii_status & VELOCITY_LINK_FAIL))
636 netif_wake_queue(vptr->dev);
639 enable_flow_control_ability(vptr);
640 mac_hw_mibs_init(regs);
641 mac_write_int_mask(vptr->int_mask, regs);
648 * velocity_soft_reset - soft reset
649 * @vptr: velocity to reset
651 * Kick off a soft reset of the velocity adapter and then poll
652 * until the reset sequence has completed before returning.
655 static int velocity_soft_reset(struct velocity_info *vptr)
657 struct mac_regs __iomem * regs = vptr->mac_regs;
660 writel(CR0_SFRST, ®s->CR0Set);
662 for (i = 0; i < W_MAX_TIMEOUT; i++) {
664 if (!DWORD_REG_BITS_IS_ON(CR0_SFRST, ®s->CR0Set))
668 if (i == W_MAX_TIMEOUT) {
669 writel(CR0_FORSRST, ®s->CR0Set);
670 /* FIXME: PCI POSTING */
678 * velocity_found1 - set up discovered velocity card
680 * @ent: PCI device table entry that matched
682 * Configure a discovered adapter from scratch. Return a negative
683 * errno error code on failure paths.
686 static int __devinit velocity_found1(struct pci_dev *pdev, const struct pci_device_id *ent)
688 static int first = 1;
689 struct net_device *dev;
691 struct velocity_info_tbl *info = (struct velocity_info_tbl *) ent->driver_data;
692 struct velocity_info *vptr;
693 struct mac_regs __iomem * regs;
696 if (velocity_nics >= MAX_UNITS) {
697 printk(KERN_NOTICE VELOCITY_NAME ": already found %d NICs.\n",
702 dev = alloc_etherdev(sizeof(struct velocity_info));
705 printk(KERN_ERR VELOCITY_NAME ": allocate net device failed.\n");
709 /* Chain it all together */
711 SET_MODULE_OWNER(dev);
712 SET_NETDEV_DEV(dev, &pdev->dev);
717 printk(KERN_INFO "%s Ver. %s\n",
718 VELOCITY_FULL_DRV_NAM, VELOCITY_VERSION);
719 printk(KERN_INFO "Copyright (c) 2002, 2003 VIA Networking Technologies, Inc.\n");
720 printk(KERN_INFO "Copyright (c) 2004 Red Hat Inc.\n");
724 velocity_init_info(pdev, vptr, info);
728 dev->irq = pdev->irq;
730 ret = pci_enable_device(pdev);
734 ret = velocity_get_pci_info(vptr, pdev);
736 printk(KERN_ERR VELOCITY_NAME ": Failed to find PCI device.\n");
740 ret = pci_request_regions(pdev, VELOCITY_NAME);
742 printk(KERN_ERR VELOCITY_NAME ": Failed to find PCI device.\n");
746 regs = ioremap(vptr->memaddr, vptr->io_size);
749 goto err_release_res;
752 vptr->mac_regs = regs;
756 dev->base_addr = vptr->ioaddr;
758 for (i = 0; i < 6; i++)
759 dev->dev_addr[i] = readb(®s->PAR[i]);
762 velocity_get_options(&vptr->options, velocity_nics, dev->name);
765 * Mask out the options cannot be set to the chip
768 vptr->options.flags &= info->flags;
771 * Enable the chip specified capbilities
774 vptr->flags = vptr->options.flags | (info->flags & 0xFF000000UL);
776 vptr->wol_opts = vptr->options.wol_opts;
777 vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED;
779 vptr->phy_id = MII_GET_PHY_ID(vptr->mac_regs);
781 dev->irq = pdev->irq;
782 dev->open = velocity_open;
783 dev->hard_start_xmit = velocity_xmit;
784 dev->stop = velocity_close;
785 dev->get_stats = velocity_get_stats;
786 dev->set_multicast_list = velocity_set_multi;
787 dev->do_ioctl = velocity_ioctl;
788 dev->ethtool_ops = &velocity_ethtool_ops;
789 dev->change_mtu = velocity_change_mtu;
790 #ifdef VELOCITY_ZERO_COPY_SUPPORT
791 dev->features |= NETIF_F_SG;
794 if (vptr->flags & VELOCITY_FLAGS_TX_CSUM) {
795 dev->features |= NETIF_F_IP_CSUM;
798 ret = register_netdev(dev);
802 if (velocity_get_link(dev))
803 netif_carrier_off(dev);
805 velocity_print_info(vptr);
806 pci_set_drvdata(pdev, dev);
808 /* and leave the chip powered down */
810 pci_set_power_state(pdev, PCI_D3hot);
815 spin_lock_irqsave(&velocity_dev_list_lock, flags);
816 list_add(&vptr->list, &velocity_dev_list);
817 spin_unlock_irqrestore(&velocity_dev_list_lock, flags);
827 pci_release_regions(pdev);
829 pci_disable_device(pdev);
836 * velocity_print_info - per driver data
839 * Print per driver data as the kernel driver finds Velocity
843 static void __devinit velocity_print_info(struct velocity_info *vptr)
845 struct net_device *dev = vptr->dev;
847 printk(KERN_INFO "%s: %s\n", dev->name, get_chip_name(vptr->chip_id));
848 printk(KERN_INFO "%s: Ethernet Address: %2.2X:%2.2X:%2.2X:%2.2X:%2.2X:%2.2X\n",
850 dev->dev_addr[0], dev->dev_addr[1], dev->dev_addr[2],
851 dev->dev_addr[3], dev->dev_addr[4], dev->dev_addr[5]);
855 * velocity_init_info - init private data
857 * @vptr: Velocity info
860 * Set up the initial velocity_info struct for the device that has been
864 static void __devinit velocity_init_info(struct pci_dev *pdev, struct velocity_info *vptr, struct velocity_info_tbl *info)
866 memset(vptr, 0, sizeof(struct velocity_info));
869 vptr->chip_id = info->chip_id;
870 vptr->io_size = info->io_size;
871 vptr->num_txq = info->txqueue;
872 vptr->multicast_limit = MCAM_SIZE;
873 spin_lock_init(&vptr->lock);
874 INIT_LIST_HEAD(&vptr->list);
878 * velocity_get_pci_info - retrieve PCI info for device
879 * @vptr: velocity device
880 * @pdev: PCI device it matches
882 * Retrieve the PCI configuration space data that interests us from
883 * the kernel PCI layer
886 static int __devinit velocity_get_pci_info(struct velocity_info *vptr, struct pci_dev *pdev)
889 if(pci_read_config_byte(pdev, PCI_REVISION_ID, &vptr->rev_id) < 0)
892 pci_set_master(pdev);
894 vptr->ioaddr = pci_resource_start(pdev, 0);
895 vptr->memaddr = pci_resource_start(pdev, 1);
897 if(!(pci_resource_flags(pdev, 0) & IORESOURCE_IO))
899 printk(KERN_ERR "%s: region #0 is not an I/O resource, aborting.\n",
904 if((pci_resource_flags(pdev, 1) & IORESOURCE_IO))
906 printk(KERN_ERR "%s: region #1 is an I/O resource, aborting.\n",
911 if(pci_resource_len(pdev, 1) < 256)
913 printk(KERN_ERR "%s: region #1 is too small.\n",
923 * velocity_init_rings - set up DMA rings
924 * @vptr: Velocity to set up
926 * Allocate PCI mapped DMA rings for the receive and transmit layer
930 static int velocity_init_rings(struct velocity_info *vptr)
939 * Allocate all RD/TD rings a single pool
942 psize = vptr->options.numrx * sizeof(struct rx_desc) +
943 vptr->options.numtx * sizeof(struct tx_desc) * vptr->num_txq;
946 * pci_alloc_consistent() fulfills the requirement for 64 bytes
949 pool = pci_alloc_consistent(vptr->pdev, psize, &pool_dma);
952 printk(KERN_ERR "%s : DMA memory allocation failed.\n",
957 memset(pool, 0, psize);
959 vptr->rd_ring = (struct rx_desc *) pool;
961 vptr->rd_pool_dma = pool_dma;
963 tsize = vptr->options.numtx * PKT_BUF_SZ * vptr->num_txq;
964 vptr->tx_bufs = pci_alloc_consistent(vptr->pdev, tsize,
967 if (vptr->tx_bufs == NULL) {
968 printk(KERN_ERR "%s: DMA memory allocation failed.\n",
970 pci_free_consistent(vptr->pdev, psize, pool, pool_dma);
974 memset(vptr->tx_bufs, 0, vptr->options.numtx * PKT_BUF_SZ * vptr->num_txq);
976 i = vptr->options.numrx * sizeof(struct rx_desc);
979 for (i = 0; i < vptr->num_txq; i++) {
980 int offset = vptr->options.numtx * sizeof(struct tx_desc);
982 vptr->td_pool_dma[i] = pool_dma;
983 vptr->td_rings[i] = (struct tx_desc *) pool;
991 * velocity_free_rings - free PCI ring pointers
992 * @vptr: Velocity to free from
994 * Clean up the PCI ring buffers allocated to this velocity.
997 static void velocity_free_rings(struct velocity_info *vptr)
1001 size = vptr->options.numrx * sizeof(struct rx_desc) +
1002 vptr->options.numtx * sizeof(struct tx_desc) * vptr->num_txq;
1004 pci_free_consistent(vptr->pdev, size, vptr->rd_ring, vptr->rd_pool_dma);
1006 size = vptr->options.numtx * PKT_BUF_SZ * vptr->num_txq;
1008 pci_free_consistent(vptr->pdev, size, vptr->tx_bufs, vptr->tx_bufs_dma);
1011 static inline void velocity_give_many_rx_descs(struct velocity_info *vptr)
1013 struct mac_regs __iomem *regs = vptr->mac_regs;
1014 int avail, dirty, unusable;
1017 * RD number must be equal to 4X per hardware spec
1018 * (programming guide rev 1.20, p.13)
1020 if (vptr->rd_filled < 4)
1025 unusable = vptr->rd_filled & 0x0003;
1026 dirty = vptr->rd_dirty - unusable;
1027 for (avail = vptr->rd_filled & 0xfffc; avail; avail--) {
1028 dirty = (dirty > 0) ? dirty - 1 : vptr->options.numrx - 1;
1029 vptr->rd_ring[dirty].rdesc0.owner = OWNED_BY_NIC;
1032 writew(vptr->rd_filled & 0xfffc, ®s->RBRDU);
1033 vptr->rd_filled = unusable;
1036 static int velocity_rx_refill(struct velocity_info *vptr)
1038 int dirty = vptr->rd_dirty, done = 0, ret = 0;
1041 struct rx_desc *rd = vptr->rd_ring + dirty;
1043 /* Fine for an all zero Rx desc at init time as well */
1044 if (rd->rdesc0.owner == OWNED_BY_NIC)
1047 if (!vptr->rd_info[dirty].skb) {
1048 ret = velocity_alloc_rx_buf(vptr, dirty);
1053 dirty = (dirty < vptr->options.numrx - 1) ? dirty + 1 : 0;
1054 } while (dirty != vptr->rd_curr);
1057 vptr->rd_dirty = dirty;
1058 vptr->rd_filled += done;
1059 velocity_give_many_rx_descs(vptr);
1066 * velocity_init_rd_ring - set up receive ring
1067 * @vptr: velocity to configure
1069 * Allocate and set up the receive buffers for each ring slot and
1070 * assign them to the network adapter.
1073 static int velocity_init_rd_ring(struct velocity_info *vptr)
1076 unsigned int rsize = sizeof(struct velocity_rd_info) *
1077 vptr->options.numrx;
1079 vptr->rd_info = kmalloc(rsize, GFP_KERNEL);
1080 if(vptr->rd_info == NULL)
1082 memset(vptr->rd_info, 0, rsize);
1084 vptr->rd_filled = vptr->rd_dirty = vptr->rd_curr = 0;
1086 ret = velocity_rx_refill(vptr);
1088 VELOCITY_PRT(MSG_LEVEL_ERR, KERN_ERR
1089 "%s: failed to allocate RX buffer.\n", vptr->dev->name);
1090 velocity_free_rd_ring(vptr);
1097 * velocity_free_rd_ring - free receive ring
1098 * @vptr: velocity to clean up
1100 * Free the receive buffers for each ring slot and any
1101 * attached socket buffers that need to go away.
1104 static void velocity_free_rd_ring(struct velocity_info *vptr)
1108 if (vptr->rd_info == NULL)
1111 for (i = 0; i < vptr->options.numrx; i++) {
1112 struct velocity_rd_info *rd_info = &(vptr->rd_info[i]);
1113 struct rx_desc *rd = vptr->rd_ring + i;
1115 memset(rd, 0, sizeof(*rd));
1119 pci_unmap_single(vptr->pdev, rd_info->skb_dma, vptr->rx_buf_sz,
1120 PCI_DMA_FROMDEVICE);
1121 rd_info->skb_dma = (dma_addr_t) NULL;
1123 dev_kfree_skb(rd_info->skb);
1124 rd_info->skb = NULL;
1127 kfree(vptr->rd_info);
1128 vptr->rd_info = NULL;
1132 * velocity_init_td_ring - set up transmit ring
1135 * Set up the transmit ring and chain the ring pointers together.
1136 * Returns zero on success or a negative posix errno code for
1140 static int velocity_init_td_ring(struct velocity_info *vptr)
1145 struct velocity_td_info *td_info;
1146 unsigned int tsize = sizeof(struct velocity_td_info) *
1147 vptr->options.numtx;
1149 /* Init the TD ring entries */
1150 for (j = 0; j < vptr->num_txq; j++) {
1151 curr = vptr->td_pool_dma[j];
1153 vptr->td_infos[j] = kmalloc(tsize, GFP_KERNEL);
1154 if(vptr->td_infos[j] == NULL)
1157 kfree(vptr->td_infos[j]);
1160 memset(vptr->td_infos[j], 0, tsize);
1162 for (i = 0; i < vptr->options.numtx; i++, curr += sizeof(struct tx_desc)) {
1163 td = &(vptr->td_rings[j][i]);
1164 td_info = &(vptr->td_infos[j][i]);
1165 td_info->buf = vptr->tx_bufs +
1166 (j * vptr->options.numtx + i) * PKT_BUF_SZ;
1167 td_info->buf_dma = vptr->tx_bufs_dma +
1168 (j * vptr->options.numtx + i) * PKT_BUF_SZ;
1170 vptr->td_tail[j] = vptr->td_curr[j] = vptr->td_used[j] = 0;
1176 * FIXME: could we merge this with velocity_free_tx_buf ?
1179 static void velocity_free_td_ring_entry(struct velocity_info *vptr,
1182 struct velocity_td_info * td_info = &(vptr->td_infos[q][n]);
1185 if (td_info == NULL)
1189 for (i = 0; i < td_info->nskb_dma; i++)
1191 if (td_info->skb_dma[i]) {
1192 pci_unmap_single(vptr->pdev, td_info->skb_dma[i],
1193 td_info->skb->len, PCI_DMA_TODEVICE);
1194 td_info->skb_dma[i] = (dma_addr_t) NULL;
1197 dev_kfree_skb(td_info->skb);
1198 td_info->skb = NULL;
1203 * velocity_free_td_ring - free td ring
1206 * Free up the transmit ring for this particular velocity adapter.
1207 * We free the ring contents but not the ring itself.
1210 static void velocity_free_td_ring(struct velocity_info *vptr)
1214 for (j = 0; j < vptr->num_txq; j++) {
1215 if (vptr->td_infos[j] == NULL)
1217 for (i = 0; i < vptr->options.numtx; i++) {
1218 velocity_free_td_ring_entry(vptr, j, i);
1221 kfree(vptr->td_infos[j]);
1222 vptr->td_infos[j] = NULL;
1227 * velocity_rx_srv - service RX interrupt
1229 * @status: adapter status (unused)
1231 * Walk the receive ring of the velocity adapter and remove
1232 * any received packets from the receive queue. Hand the ring
1233 * slots back to the adapter for reuse.
1236 static int velocity_rx_srv(struct velocity_info *vptr, int status)
1238 struct net_device_stats *stats = &vptr->stats;
1239 int rd_curr = vptr->rd_curr;
1243 struct rx_desc *rd = vptr->rd_ring + rd_curr;
1245 if (!vptr->rd_info[rd_curr].skb)
1248 if (rd->rdesc0.owner == OWNED_BY_NIC)
1254 * Don't drop CE or RL error frame although RXOK is off
1256 if ((rd->rdesc0.RSR & RSR_RXOK) || (!(rd->rdesc0.RSR & RSR_RXOK) && (rd->rdesc0.RSR & (RSR_CE | RSR_RL)))) {
1257 if (velocity_receive_frame(vptr, rd_curr) < 0)
1258 stats->rx_dropped++;
1260 if (rd->rdesc0.RSR & RSR_CRC)
1261 stats->rx_crc_errors++;
1262 if (rd->rdesc0.RSR & RSR_FAE)
1263 stats->rx_frame_errors++;
1265 stats->rx_dropped++;
1270 vptr->dev->last_rx = jiffies;
1273 if (rd_curr >= vptr->options.numrx)
1275 } while (++works <= 15);
1277 vptr->rd_curr = rd_curr;
1279 if (works > 0 && velocity_rx_refill(vptr) < 0) {
1280 VELOCITY_PRT(MSG_LEVEL_ERR, KERN_ERR
1281 "%s: rx buf allocation failure\n", vptr->dev->name);
1289 * velocity_rx_csum - checksum process
1290 * @rd: receive packet descriptor
1291 * @skb: network layer packet buffer
1293 * Process the status bits for the received packet and determine
1294 * if the checksum was computed and verified by the hardware
1297 static inline void velocity_rx_csum(struct rx_desc *rd, struct sk_buff *skb)
1299 skb->ip_summed = CHECKSUM_NONE;
1301 if (rd->rdesc1.CSM & CSM_IPKT) {
1302 if (rd->rdesc1.CSM & CSM_IPOK) {
1303 if ((rd->rdesc1.CSM & CSM_TCPKT) ||
1304 (rd->rdesc1.CSM & CSM_UDPKT)) {
1305 if (!(rd->rdesc1.CSM & CSM_TUPOK)) {
1309 skb->ip_summed = CHECKSUM_UNNECESSARY;
1315 * velocity_rx_copy - in place Rx copy for small packets
1316 * @rx_skb: network layer packet buffer candidate
1317 * @pkt_size: received data size
1318 * @rd: receive packet descriptor
1319 * @dev: network device
1321 * Replace the current skb that is scheduled for Rx processing by a
1322 * shorter, immediatly allocated skb, if the received packet is small
1323 * enough. This function returns a negative value if the received
1324 * packet is too big or if memory is exhausted.
1326 static inline int velocity_rx_copy(struct sk_buff **rx_skb, int pkt_size,
1327 struct velocity_info *vptr)
1331 if (pkt_size < rx_copybreak) {
1332 struct sk_buff *new_skb;
1334 new_skb = dev_alloc_skb(pkt_size + 2);
1336 new_skb->dev = vptr->dev;
1337 new_skb->ip_summed = rx_skb[0]->ip_summed;
1339 if (vptr->flags & VELOCITY_FLAGS_IP_ALIGN)
1340 skb_reserve(new_skb, 2);
1342 memcpy(new_skb->data, rx_skb[0]->data, pkt_size);
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++;
1401 skb->dev = vptr->dev;
1403 pci_dma_sync_single_for_cpu(vptr->pdev, rd_info->skb_dma,
1404 vptr->rx_buf_sz, PCI_DMA_FROMDEVICE);
1407 * Drop frame not meeting IEEE 802.3
1410 if (vptr->flags & VELOCITY_FLAGS_VAL_PKT_LEN) {
1411 if (rd->rdesc0.RSR & RSR_RL) {
1412 stats->rx_length_errors++;
1417 pci_action = pci_dma_sync_single_for_device;
1419 velocity_rx_csum(rd, skb);
1421 if (velocity_rx_copy(&skb, pkt_len, vptr) < 0) {
1422 velocity_iph_realign(vptr, skb, pkt_len);
1423 pci_action = pci_unmap_single;
1424 rd_info->skb = NULL;
1427 pci_action(vptr->pdev, rd_info->skb_dma, vptr->rx_buf_sz,
1428 PCI_DMA_FROMDEVICE);
1430 skb_put(skb, pkt_len - 4);
1431 skb->protocol = eth_type_trans(skb, skb->dev);
1433 stats->rx_bytes += pkt_len;
1440 * velocity_alloc_rx_buf - allocate aligned receive buffer
1444 * Allocate a new full sized buffer for the reception of a frame and
1445 * map it into PCI space for the hardware to use. The hardware
1446 * requires *64* byte alignment of the buffer which makes life
1447 * less fun than would be ideal.
1450 static int velocity_alloc_rx_buf(struct velocity_info *vptr, int idx)
1452 struct rx_desc *rd = &(vptr->rd_ring[idx]);
1453 struct velocity_rd_info *rd_info = &(vptr->rd_info[idx]);
1455 rd_info->skb = dev_alloc_skb(vptr->rx_buf_sz + 64);
1456 if (rd_info->skb == NULL)
1460 * Do the gymnastics to get the buffer head for data at
1463 skb_reserve(rd_info->skb, (unsigned long) rd_info->skb->data & 63);
1464 rd_info->skb->dev = vptr->dev;
1465 rd_info->skb_dma = pci_map_single(vptr->pdev, rd_info->skb->data, vptr->rx_buf_sz, PCI_DMA_FROMDEVICE);
1468 * Fill in the descriptor to match
1471 *((u32 *) & (rd->rdesc0)) = 0;
1472 rd->len = cpu_to_le32(vptr->rx_buf_sz);
1474 rd->pa_low = cpu_to_le32(rd_info->skb_dma);
1480 * tx_srv - transmit interrupt service
1484 * Scan the queues looking for transmitted packets that
1485 * we can complete and clean up. Update any statistics as
1489 static int velocity_tx_srv(struct velocity_info *vptr, u32 status)
1496 struct velocity_td_info *tdinfo;
1497 struct net_device_stats *stats = &vptr->stats;
1499 for (qnum = 0; qnum < vptr->num_txq; qnum++) {
1500 for (idx = vptr->td_tail[qnum]; vptr->td_used[qnum] > 0;
1501 idx = (idx + 1) % vptr->options.numtx) {
1506 td = &(vptr->td_rings[qnum][idx]);
1507 tdinfo = &(vptr->td_infos[qnum][idx]);
1509 if (td->tdesc0.owner == OWNED_BY_NIC)
1515 if (td->tdesc0.TSR & TSR0_TERR) {
1517 stats->tx_dropped++;
1518 if (td->tdesc0.TSR & TSR0_CDH)
1519 stats->tx_heartbeat_errors++;
1520 if (td->tdesc0.TSR & TSR0_CRS)
1521 stats->tx_carrier_errors++;
1522 if (td->tdesc0.TSR & TSR0_ABT)
1523 stats->tx_aborted_errors++;
1524 if (td->tdesc0.TSR & TSR0_OWC)
1525 stats->tx_window_errors++;
1527 stats->tx_packets++;
1528 stats->tx_bytes += tdinfo->skb->len;
1530 velocity_free_tx_buf(vptr, tdinfo);
1531 vptr->td_used[qnum]--;
1533 vptr->td_tail[qnum] = idx;
1535 if (AVAIL_TD(vptr, qnum) < 1) {
1540 * Look to see if we should kick the transmit network
1541 * layer for more work.
1543 if (netif_queue_stopped(vptr->dev) && (full == 0)
1544 && (!(vptr->mii_status & VELOCITY_LINK_FAIL))) {
1545 netif_wake_queue(vptr->dev);
1551 * velocity_print_link_status - link status reporting
1552 * @vptr: velocity to report on
1554 * Turn the link status of the velocity card into a kernel log
1555 * description of the new link state, detailing speed and duplex
1559 static void velocity_print_link_status(struct velocity_info *vptr)
1562 if (vptr->mii_status & VELOCITY_LINK_FAIL) {
1563 VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: failed to detect cable link\n", vptr->dev->name);
1564 } else if (vptr->options.spd_dpx == SPD_DPX_AUTO) {
1565 VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: Link autonegation", vptr->dev->name);
1567 if (vptr->mii_status & VELOCITY_SPEED_1000)
1568 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 1000M bps");
1569 else if (vptr->mii_status & VELOCITY_SPEED_100)
1570 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 100M bps");
1572 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 10M bps");
1574 if (vptr->mii_status & VELOCITY_DUPLEX_FULL)
1575 VELOCITY_PRT(MSG_LEVEL_INFO, " full duplex\n");
1577 VELOCITY_PRT(MSG_LEVEL_INFO, " half duplex\n");
1579 VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: Link forced", vptr->dev->name);
1580 switch (vptr->options.spd_dpx) {
1581 case SPD_DPX_100_HALF:
1582 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 100M bps half duplex\n");
1584 case SPD_DPX_100_FULL:
1585 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 100M bps full duplex\n");
1587 case SPD_DPX_10_HALF:
1588 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 10M bps half duplex\n");
1590 case SPD_DPX_10_FULL:
1591 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 10M bps full duplex\n");
1600 * velocity_error - handle error from controller
1602 * @status: card status
1604 * Process an error report from the hardware and attempt to recover
1605 * the card itself. At the moment we cannot recover from some
1606 * theoretically impossible errors but this could be fixed using
1607 * the pci_device_failed logic to bounce the hardware
1611 static void velocity_error(struct velocity_info *vptr, int status)
1614 if (status & ISR_TXSTLI) {
1615 struct mac_regs __iomem * regs = vptr->mac_regs;
1617 printk(KERN_ERR "TD structure errror TDindex=%hx\n", readw(®s->TDIdx[0]));
1618 BYTE_REG_BITS_ON(TXESR_TDSTR, ®s->TXESR);
1619 writew(TRDCSR_RUN, ®s->TDCSRClr);
1620 netif_stop_queue(vptr->dev);
1622 /* FIXME: port over the pci_device_failed code and use it
1626 if (status & ISR_SRCI) {
1627 struct mac_regs __iomem * regs = vptr->mac_regs;
1630 if (vptr->options.spd_dpx == SPD_DPX_AUTO) {
1631 vptr->mii_status = check_connection_type(regs);
1634 * If it is a 3119, disable frame bursting in
1635 * halfduplex mode and enable it in fullduplex
1638 if (vptr->rev_id < REV_ID_VT3216_A0) {
1639 if (vptr->mii_status | VELOCITY_DUPLEX_FULL)
1640 BYTE_REG_BITS_ON(TCR_TB2BDIS, ®s->TCR);
1642 BYTE_REG_BITS_OFF(TCR_TB2BDIS, ®s->TCR);
1645 * Only enable CD heart beat counter in 10HD mode
1647 if (!(vptr->mii_status & VELOCITY_DUPLEX_FULL) && (vptr->mii_status & VELOCITY_SPEED_10)) {
1648 BYTE_REG_BITS_OFF(TESTCFG_HBDIS, ®s->TESTCFG);
1650 BYTE_REG_BITS_ON(TESTCFG_HBDIS, ®s->TESTCFG);
1654 * Get link status from PHYSR0
1656 linked = readb(®s->PHYSR0) & PHYSR0_LINKGD;
1659 vptr->mii_status &= ~VELOCITY_LINK_FAIL;
1660 netif_carrier_on(vptr->dev);
1662 vptr->mii_status |= VELOCITY_LINK_FAIL;
1663 netif_carrier_off(vptr->dev);
1666 velocity_print_link_status(vptr);
1667 enable_flow_control_ability(vptr);
1670 * Re-enable auto-polling because SRCI will disable
1674 enable_mii_autopoll(regs);
1676 if (vptr->mii_status & VELOCITY_LINK_FAIL)
1677 netif_stop_queue(vptr->dev);
1679 netif_wake_queue(vptr->dev);
1682 if (status & ISR_MIBFI)
1683 velocity_update_hw_mibs(vptr);
1684 if (status & ISR_LSTEI)
1685 mac_rx_queue_wake(vptr->mac_regs);
1689 * velocity_free_tx_buf - free transmit buffer
1693 * Release an transmit buffer. If the buffer was preallocated then
1694 * recycle it, if not then unmap the buffer.
1697 static void velocity_free_tx_buf(struct velocity_info *vptr, struct velocity_td_info *tdinfo)
1699 struct sk_buff *skb = tdinfo->skb;
1703 * Don't unmap the pre-allocated tx_bufs
1705 if (tdinfo->skb_dma && (tdinfo->skb_dma[0] != tdinfo->buf_dma)) {
1707 for (i = 0; i < tdinfo->nskb_dma; i++) {
1708 #ifdef VELOCITY_ZERO_COPY_SUPPORT
1709 pci_unmap_single(vptr->pdev, tdinfo->skb_dma[i], td->tdesc1.len, PCI_DMA_TODEVICE);
1711 pci_unmap_single(vptr->pdev, tdinfo->skb_dma[i], skb->len, PCI_DMA_TODEVICE);
1713 tdinfo->skb_dma[i] = 0;
1716 dev_kfree_skb_irq(skb);
1721 * velocity_open - interface activation callback
1722 * @dev: network layer device to open
1724 * Called when the network layer brings the interface up. Returns
1725 * a negative posix error code on failure, or zero on success.
1727 * All the ring allocation and set up is done on open for this
1728 * adapter to minimise memory usage when inactive
1731 static int velocity_open(struct net_device *dev)
1733 struct velocity_info *vptr = dev->priv;
1736 vptr->rx_buf_sz = (dev->mtu <= 1504 ? PKT_BUF_SZ : dev->mtu + 32);
1738 ret = velocity_init_rings(vptr);
1742 ret = velocity_init_rd_ring(vptr);
1744 goto err_free_desc_rings;
1746 ret = velocity_init_td_ring(vptr);
1748 goto err_free_rd_ring;
1750 /* Ensure chip is running */
1751 pci_set_power_state(vptr->pdev, PCI_D0);
1753 velocity_init_registers(vptr, VELOCITY_INIT_COLD);
1755 ret = request_irq(vptr->pdev->irq, &velocity_intr, SA_SHIRQ,
1758 /* Power down the chip */
1759 pci_set_power_state(vptr->pdev, PCI_D3hot);
1760 goto err_free_td_ring;
1763 mac_enable_int(vptr->mac_regs);
1764 netif_start_queue(dev);
1765 vptr->flags |= VELOCITY_FLAGS_OPENED;
1770 velocity_free_td_ring(vptr);
1772 velocity_free_rd_ring(vptr);
1773 err_free_desc_rings:
1774 velocity_free_rings(vptr);
1779 * velocity_change_mtu - MTU change callback
1780 * @dev: network device
1781 * @new_mtu: desired MTU
1783 * Handle requests from the networking layer for MTU change on
1784 * this interface. It gets called on a change by the network layer.
1785 * Return zero for success or negative posix error code.
1788 static int velocity_change_mtu(struct net_device *dev, int new_mtu)
1790 struct velocity_info *vptr = dev->priv;
1791 unsigned long flags;
1792 int oldmtu = dev->mtu;
1795 if ((new_mtu < VELOCITY_MIN_MTU) || new_mtu > (VELOCITY_MAX_MTU)) {
1796 VELOCITY_PRT(MSG_LEVEL_ERR, KERN_NOTICE "%s: Invalid MTU.\n",
1801 if (new_mtu != oldmtu) {
1802 spin_lock_irqsave(&vptr->lock, flags);
1804 netif_stop_queue(dev);
1805 velocity_shutdown(vptr);
1807 velocity_free_td_ring(vptr);
1808 velocity_free_rd_ring(vptr);
1812 vptr->rx_buf_sz = 9 * 1024;
1813 else if (new_mtu > 4096)
1814 vptr->rx_buf_sz = 8192;
1816 vptr->rx_buf_sz = 4 * 1024;
1818 ret = velocity_init_rd_ring(vptr);
1822 ret = velocity_init_td_ring(vptr);
1826 velocity_init_registers(vptr, VELOCITY_INIT_COLD);
1828 mac_enable_int(vptr->mac_regs);
1829 netif_start_queue(dev);
1831 spin_unlock_irqrestore(&vptr->lock, flags);
1838 * velocity_shutdown - shut down the chip
1839 * @vptr: velocity to deactivate
1841 * Shuts down the internal operations of the velocity and
1842 * disables interrupts, autopolling, transmit and receive
1845 static void velocity_shutdown(struct velocity_info *vptr)
1847 struct mac_regs __iomem * regs = vptr->mac_regs;
1848 mac_disable_int(regs);
1849 writel(CR0_STOP, ®s->CR0Set);
1850 writew(0xFFFF, ®s->TDCSRClr);
1851 writeb(0xFF, ®s->RDCSRClr);
1852 safe_disable_mii_autopoll(regs);
1853 mac_clear_isr(regs);
1857 * velocity_close - close adapter callback
1858 * @dev: network device
1860 * Callback from the network layer when the velocity is being
1861 * deactivated by the network layer
1864 static int velocity_close(struct net_device *dev)
1866 struct velocity_info *vptr = dev->priv;
1868 netif_stop_queue(dev);
1869 velocity_shutdown(vptr);
1871 if (vptr->flags & VELOCITY_FLAGS_WOL_ENABLED)
1872 velocity_get_ip(vptr);
1874 free_irq(dev->irq, dev);
1876 /* Power down the chip */
1877 pci_set_power_state(vptr->pdev, PCI_D3hot);
1879 /* Free the resources */
1880 velocity_free_td_ring(vptr);
1881 velocity_free_rd_ring(vptr);
1882 velocity_free_rings(vptr);
1884 vptr->flags &= (~VELOCITY_FLAGS_OPENED);
1889 * velocity_xmit - transmit packet callback
1890 * @skb: buffer to transmit
1891 * @dev: network device
1893 * Called by the networ layer to request a packet is queued to
1894 * the velocity. Returns zero on success.
1897 static int velocity_xmit(struct sk_buff *skb, struct net_device *dev)
1899 struct velocity_info *vptr = dev->priv;
1901 struct tx_desc *td_ptr;
1902 struct velocity_td_info *tdinfo;
1903 unsigned long flags;
1906 int pktlen = skb->len;
1908 #ifdef VELOCITY_ZERO_COPY_SUPPORT
1909 if (skb_shinfo(skb)->nr_frags > 6 && __skb_linearize(skb)) {
1915 spin_lock_irqsave(&vptr->lock, flags);
1917 index = vptr->td_curr[qnum];
1918 td_ptr = &(vptr->td_rings[qnum][index]);
1919 tdinfo = &(vptr->td_infos[qnum][index]);
1921 td_ptr->tdesc1.TCPLS = TCPLS_NORMAL;
1922 td_ptr->tdesc1.TCR = TCR0_TIC;
1923 td_ptr->td_buf[0].queue = 0;
1928 if (pktlen < ETH_ZLEN) {
1929 /* Cannot occur until ZC support */
1931 memcpy(tdinfo->buf, skb->data, skb->len);
1932 memset(tdinfo->buf + skb->len, 0, ETH_ZLEN - skb->len);
1934 tdinfo->skb_dma[0] = tdinfo->buf_dma;
1935 td_ptr->tdesc0.pktsize = pktlen;
1936 td_ptr->td_buf[0].pa_low = cpu_to_le32(tdinfo->skb_dma[0]);
1937 td_ptr->td_buf[0].pa_high = 0;
1938 td_ptr->td_buf[0].bufsize = td_ptr->tdesc0.pktsize;
1939 tdinfo->nskb_dma = 1;
1940 td_ptr->tdesc1.CMDZ = 2;
1942 #ifdef VELOCITY_ZERO_COPY_SUPPORT
1943 if (skb_shinfo(skb)->nr_frags > 0) {
1944 int nfrags = skb_shinfo(skb)->nr_frags;
1947 memcpy(tdinfo->buf, skb->data, skb->len);
1948 tdinfo->skb_dma[0] = tdinfo->buf_dma;
1949 td_ptr->tdesc0.pktsize =
1950 td_ptr->td_buf[0].pa_low = cpu_to_le32(tdinfo->skb_dma[0]);
1951 td_ptr->td_buf[0].pa_high = 0;
1952 td_ptr->td_buf[0].bufsize = td_ptr->tdesc0.pktsize;
1953 tdinfo->nskb_dma = 1;
1954 td_ptr->tdesc1.CMDZ = 2;
1957 tdinfo->nskb_dma = 0;
1958 tdinfo->skb_dma[i] = pci_map_single(vptr->pdev, skb->data, skb->len - skb->data_len, PCI_DMA_TODEVICE);
1960 td_ptr->tdesc0.pktsize = pktlen;
1962 /* FIXME: support 48bit DMA later */
1963 td_ptr->td_buf[i].pa_low = cpu_to_le32(tdinfo->skb_dma);
1964 td_ptr->td_buf[i].pa_high = 0;
1965 td_ptr->td_buf[i].bufsize = skb->len->skb->data_len;
1967 for (i = 0; i < nfrags; i++) {
1968 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
1969 void *addr = ((void *) page_address(frag->page + frag->page_offset));
1971 tdinfo->skb_dma[i + 1] = pci_map_single(vptr->pdev, addr, frag->size, PCI_DMA_TODEVICE);
1973 td_ptr->td_buf[i + 1].pa_low = cpu_to_le32(tdinfo->skb_dma[i + 1]);
1974 td_ptr->td_buf[i + 1].pa_high = 0;
1975 td_ptr->td_buf[i + 1].bufsize = frag->size;
1977 tdinfo->nskb_dma = i - 1;
1978 td_ptr->tdesc1.CMDZ = i;
1985 * Map the linear network buffer into PCI space and
1986 * add it to the transmit ring.
1989 tdinfo->skb_dma[0] = pci_map_single(vptr->pdev, skb->data, pktlen, PCI_DMA_TODEVICE);
1990 td_ptr->tdesc0.pktsize = pktlen;
1991 td_ptr->td_buf[0].pa_low = cpu_to_le32(tdinfo->skb_dma[0]);
1992 td_ptr->td_buf[0].pa_high = 0;
1993 td_ptr->td_buf[0].bufsize = td_ptr->tdesc0.pktsize;
1994 tdinfo->nskb_dma = 1;
1995 td_ptr->tdesc1.CMDZ = 2;
1998 if (vptr->flags & VELOCITY_FLAGS_TAGGING) {
1999 td_ptr->tdesc1.pqinf.VID = (vptr->options.vid & 0xfff);
2000 td_ptr->tdesc1.pqinf.priority = 0;
2001 td_ptr->tdesc1.pqinf.CFI = 0;
2002 td_ptr->tdesc1.TCR |= TCR0_VETAG;
2006 * Handle hardware checksum
2008 if ((vptr->flags & VELOCITY_FLAGS_TX_CSUM)
2009 && (skb->ip_summed == CHECKSUM_HW)) {
2010 struct iphdr *ip = skb->nh.iph;
2011 if (ip->protocol == IPPROTO_TCP)
2012 td_ptr->tdesc1.TCR |= TCR0_TCPCK;
2013 else if (ip->protocol == IPPROTO_UDP)
2014 td_ptr->tdesc1.TCR |= (TCR0_UDPCK);
2015 td_ptr->tdesc1.TCR |= TCR0_IPCK;
2019 int prev = index - 1;
2022 prev = vptr->options.numtx - 1;
2023 td_ptr->tdesc0.owner = OWNED_BY_NIC;
2024 vptr->td_used[qnum]++;
2025 vptr->td_curr[qnum] = (index + 1) % vptr->options.numtx;
2027 if (AVAIL_TD(vptr, qnum) < 1)
2028 netif_stop_queue(dev);
2030 td_ptr = &(vptr->td_rings[qnum][prev]);
2031 td_ptr->td_buf[0].queue = 1;
2032 mac_tx_queue_wake(vptr->mac_regs, qnum);
2034 dev->trans_start = jiffies;
2035 spin_unlock_irqrestore(&vptr->lock, flags);
2040 * velocity_intr - interrupt callback
2041 * @irq: interrupt number
2042 * @dev_instance: interrupting device
2043 * @pt_regs: CPU register state at interrupt
2045 * Called whenever an interrupt is generated by the velocity
2046 * adapter IRQ line. We may not be the source of the interrupt
2047 * and need to identify initially if we are, and if not exit as
2048 * efficiently as possible.
2051 static int velocity_intr(int irq, void *dev_instance, struct pt_regs *regs)
2053 struct net_device *dev = dev_instance;
2054 struct velocity_info *vptr = dev->priv;
2059 spin_lock(&vptr->lock);
2060 isr_status = mac_read_isr(vptr->mac_regs);
2063 if (isr_status == 0) {
2064 spin_unlock(&vptr->lock);
2068 mac_disable_int(vptr->mac_regs);
2071 * Keep processing the ISR until we have completed
2072 * processing and the isr_status becomes zero
2075 while (isr_status != 0) {
2076 mac_write_isr(vptr->mac_regs, isr_status);
2077 if (isr_status & (~(ISR_PRXI | ISR_PPRXI | ISR_PTXI | ISR_PPTXI)))
2078 velocity_error(vptr, isr_status);
2079 if (isr_status & (ISR_PRXI | ISR_PPRXI))
2080 max_count += velocity_rx_srv(vptr, isr_status);
2081 if (isr_status & (ISR_PTXI | ISR_PPTXI))
2082 max_count += velocity_tx_srv(vptr, isr_status);
2083 isr_status = mac_read_isr(vptr->mac_regs);
2084 if (max_count > vptr->options.int_works)
2086 printk(KERN_WARNING "%s: excessive work at interrupt.\n",
2091 spin_unlock(&vptr->lock);
2092 mac_enable_int(vptr->mac_regs);
2099 * velocity_set_multi - filter list change callback
2100 * @dev: network device
2102 * Called by the network layer when the filter lists need to change
2103 * for a velocity adapter. Reload the CAMs with the new address
2107 static void velocity_set_multi(struct net_device *dev)
2109 struct velocity_info *vptr = dev->priv;
2110 struct mac_regs __iomem * regs = vptr->mac_regs;
2113 struct dev_mc_list *mclist;
2115 if (dev->flags & IFF_PROMISC) { /* Set promiscuous. */
2116 /* Unconditionally log net taps. */
2117 printk(KERN_NOTICE "%s: Promiscuous mode enabled.\n", dev->name);
2118 writel(0xffffffff, ®s->MARCAM[0]);
2119 writel(0xffffffff, ®s->MARCAM[4]);
2120 rx_mode = (RCR_AM | RCR_AB | RCR_PROM);
2121 } else if ((dev->mc_count > vptr->multicast_limit)
2122 || (dev->flags & IFF_ALLMULTI)) {
2123 writel(0xffffffff, ®s->MARCAM[0]);
2124 writel(0xffffffff, ®s->MARCAM[4]);
2125 rx_mode = (RCR_AM | RCR_AB);
2127 int offset = MCAM_SIZE - vptr->multicast_limit;
2128 mac_get_cam_mask(regs, vptr->mCAMmask, VELOCITY_MULTICAST_CAM);
2130 for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count; i++, mclist = mclist->next) {
2131 mac_set_cam(regs, i + offset, mclist->dmi_addr, VELOCITY_MULTICAST_CAM);
2132 vptr->mCAMmask[(offset + i) / 8] |= 1 << ((offset + i) & 7);
2135 mac_set_cam_mask(regs, vptr->mCAMmask, VELOCITY_MULTICAST_CAM);
2136 rx_mode = (RCR_AM | RCR_AB);
2138 if (dev->mtu > 1500)
2141 BYTE_REG_BITS_ON(rx_mode, ®s->RCR);
2146 * velocity_get_status - statistics callback
2147 * @dev: network device
2149 * Callback from the network layer to allow driver statistics
2150 * to be resynchronized with hardware collected state. In the
2151 * case of the velocity we need to pull the MIB counters from
2152 * the hardware into the counters before letting the network
2153 * layer display them.
2156 static struct net_device_stats *velocity_get_stats(struct net_device *dev)
2158 struct velocity_info *vptr = dev->priv;
2160 /* If the hardware is down, don't touch MII */
2161 if(!netif_running(dev))
2162 return &vptr->stats;
2164 spin_lock_irq(&vptr->lock);
2165 velocity_update_hw_mibs(vptr);
2166 spin_unlock_irq(&vptr->lock);
2168 vptr->stats.rx_packets = vptr->mib_counter[HW_MIB_ifRxAllPkts];
2169 vptr->stats.rx_errors = vptr->mib_counter[HW_MIB_ifRxErrorPkts];
2170 vptr->stats.rx_length_errors = vptr->mib_counter[HW_MIB_ifInRangeLengthErrors];
2172 // unsigned long rx_dropped; /* no space in linux buffers */
2173 vptr->stats.collisions = vptr->mib_counter[HW_MIB_ifTxEtherCollisions];
2174 /* detailed rx_errors: */
2175 // unsigned long rx_length_errors;
2176 // unsigned long rx_over_errors; /* receiver ring buff overflow */
2177 vptr->stats.rx_crc_errors = vptr->mib_counter[HW_MIB_ifRxPktCRCE];
2178 // unsigned long rx_frame_errors; /* recv'd frame alignment error */
2179 // unsigned long rx_fifo_errors; /* recv'r fifo overrun */
2180 // unsigned long rx_missed_errors; /* receiver missed packet */
2182 /* detailed tx_errors */
2183 // unsigned long tx_fifo_errors;
2185 return &vptr->stats;
2190 * velocity_ioctl - ioctl entry point
2191 * @dev: network device
2192 * @rq: interface request ioctl
2193 * @cmd: command code
2195 * Called when the user issues an ioctl request to the network
2196 * device in question. The velocity interface supports MII.
2199 static int velocity_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
2201 struct velocity_info *vptr = dev->priv;
2204 /* If we are asked for information and the device is power
2205 saving then we need to bring the device back up to talk to it */
2207 if (!netif_running(dev))
2208 pci_set_power_state(vptr->pdev, PCI_D0);
2211 case SIOCGMIIPHY: /* Get address of MII PHY in use. */
2212 case SIOCGMIIREG: /* Read MII PHY register. */
2213 case SIOCSMIIREG: /* Write to MII PHY register. */
2214 ret = velocity_mii_ioctl(dev, rq, cmd);
2220 if (!netif_running(dev))
2221 pci_set_power_state(vptr->pdev, PCI_D3hot);
2228 * Definition for our device driver. The PCI layer interface
2229 * uses this to handle all our card discover and plugging
2232 static struct pci_driver velocity_driver = {
2233 .name = VELOCITY_NAME,
2234 .id_table = velocity_id_table,
2235 .probe = velocity_found1,
2236 .remove = __devexit_p(velocity_remove1),
2238 .suspend = velocity_suspend,
2239 .resume = velocity_resume,
2244 * velocity_init_module - load time function
2246 * Called when the velocity module is loaded. The PCI driver
2247 * is registered with the PCI layer, and in turn will call
2248 * the probe functions for each velocity adapter installed
2252 static int __init velocity_init_module(void)
2256 velocity_register_notifier();
2257 ret = pci_module_init(&velocity_driver);
2259 velocity_unregister_notifier();
2264 * velocity_cleanup - module unload
2266 * When the velocity hardware is unloaded this function is called.
2267 * It will clean up the notifiers and the unregister the PCI
2268 * driver interface for this hardware. This in turn cleans up
2269 * all discovered interfaces before returning from the function
2272 static void __exit velocity_cleanup_module(void)
2274 velocity_unregister_notifier();
2275 pci_unregister_driver(&velocity_driver);
2278 module_init(velocity_init_module);
2279 module_exit(velocity_cleanup_module);
2283 * MII access , media link mode setting functions
2288 * mii_init - set up MII
2289 * @vptr: velocity adapter
2290 * @mii_status: links tatus
2292 * Set up the PHY for the current link state.
2295 static void mii_init(struct velocity_info *vptr, u32 mii_status)
2299 switch (PHYID_GET_PHY_ID(vptr->phy_id)) {
2300 case PHYID_CICADA_CS8201:
2302 * Reset to hardware default
2304 MII_REG_BITS_OFF((ANAR_ASMDIR | ANAR_PAUSE), MII_REG_ANAR, vptr->mac_regs);
2306 * Turn on ECHODIS bit in NWay-forced full mode and turn it
2307 * off it in NWay-forced half mode for NWay-forced v.s.
2308 * legacy-forced issue.
2310 if (vptr->mii_status & VELOCITY_DUPLEX_FULL)
2311 MII_REG_BITS_ON(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs);
2313 MII_REG_BITS_OFF(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs);
2315 * Turn on Link/Activity LED enable bit for CIS8201
2317 MII_REG_BITS_ON(PLED_LALBE, MII_REG_PLED, vptr->mac_regs);
2319 case PHYID_VT3216_32BIT:
2320 case PHYID_VT3216_64BIT:
2322 * Reset to hardware default
2324 MII_REG_BITS_ON((ANAR_ASMDIR | ANAR_PAUSE), MII_REG_ANAR, vptr->mac_regs);
2326 * Turn on ECHODIS bit in NWay-forced full mode and turn it
2327 * off it in NWay-forced half mode for NWay-forced v.s.
2328 * legacy-forced issue
2330 if (vptr->mii_status & VELOCITY_DUPLEX_FULL)
2331 MII_REG_BITS_ON(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs);
2333 MII_REG_BITS_OFF(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs);
2336 case PHYID_MARVELL_1000:
2337 case PHYID_MARVELL_1000S:
2339 * Assert CRS on Transmit
2341 MII_REG_BITS_ON(PSCR_ACRSTX, MII_REG_PSCR, vptr->mac_regs);
2343 * Reset to hardware default
2345 MII_REG_BITS_ON((ANAR_ASMDIR | ANAR_PAUSE), MII_REG_ANAR, vptr->mac_regs);
2350 velocity_mii_read(vptr->mac_regs, MII_REG_BMCR, &BMCR);
2351 if (BMCR & BMCR_ISO) {
2353 velocity_mii_write(vptr->mac_regs, MII_REG_BMCR, BMCR);
2358 * safe_disable_mii_autopoll - autopoll off
2359 * @regs: velocity registers
2361 * Turn off the autopoll and wait for it to disable on the chip
2364 static void safe_disable_mii_autopoll(struct mac_regs __iomem * regs)
2368 /* turn off MAUTO */
2369 writeb(0, ®s->MIICR);
2370 for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
2372 if (BYTE_REG_BITS_IS_ON(MIISR_MIDLE, ®s->MIISR))
2378 * enable_mii_autopoll - turn on autopolling
2379 * @regs: velocity registers
2381 * Enable the MII link status autopoll feature on the Velocity
2382 * hardware. Wait for it to enable.
2385 static void enable_mii_autopoll(struct mac_regs __iomem * regs)
2389 writeb(0, &(regs->MIICR));
2390 writeb(MIIADR_SWMPL, ®s->MIIADR);
2392 for (ii = 0; ii < W_MAX_TIMEOUT; ii++) {
2394 if (BYTE_REG_BITS_IS_ON(MIISR_MIDLE, ®s->MIISR))
2398 writeb(MIICR_MAUTO, ®s->MIICR);
2400 for (ii = 0; ii < W_MAX_TIMEOUT; ii++) {
2402 if (!BYTE_REG_BITS_IS_ON(MIISR_MIDLE, ®s->MIISR))
2409 * velocity_mii_read - read MII data
2410 * @regs: velocity registers
2411 * @index: MII register index
2412 * @data: buffer for received data
2414 * Perform a single read of an MII 16bit register. Returns zero
2415 * on success or -ETIMEDOUT if the PHY did not respond.
2418 static int velocity_mii_read(struct mac_regs __iomem *regs, u8 index, u16 *data)
2423 * Disable MIICR_MAUTO, so that mii addr can be set normally
2425 safe_disable_mii_autopoll(regs);
2427 writeb(index, ®s->MIIADR);
2429 BYTE_REG_BITS_ON(MIICR_RCMD, ®s->MIICR);
2431 for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
2432 if (!(readb(®s->MIICR) & MIICR_RCMD))
2436 *data = readw(®s->MIIDATA);
2438 enable_mii_autopoll(regs);
2439 if (ww == W_MAX_TIMEOUT)
2445 * velocity_mii_write - write MII data
2446 * @regs: velocity registers
2447 * @index: MII register index
2448 * @data: 16bit data for the MII register
2450 * Perform a single write to an MII 16bit register. Returns zero
2451 * on success or -ETIMEDOUT if the PHY did not respond.
2454 static int velocity_mii_write(struct mac_regs __iomem *regs, u8 mii_addr, u16 data)
2459 * Disable MIICR_MAUTO, so that mii addr can be set normally
2461 safe_disable_mii_autopoll(regs);
2463 /* MII reg offset */
2464 writeb(mii_addr, ®s->MIIADR);
2466 writew(data, ®s->MIIDATA);
2468 /* turn on MIICR_WCMD */
2469 BYTE_REG_BITS_ON(MIICR_WCMD, ®s->MIICR);
2471 /* W_MAX_TIMEOUT is the timeout period */
2472 for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
2474 if (!(readb(®s->MIICR) & MIICR_WCMD))
2477 enable_mii_autopoll(regs);
2479 if (ww == W_MAX_TIMEOUT)
2485 * velocity_get_opt_media_mode - get media selection
2486 * @vptr: velocity adapter
2488 * Get the media mode stored in EEPROM or module options and load
2489 * mii_status accordingly. The requested link state information
2493 static u32 velocity_get_opt_media_mode(struct velocity_info *vptr)
2497 switch (vptr->options.spd_dpx) {
2499 status = VELOCITY_AUTONEG_ENABLE;
2501 case SPD_DPX_100_FULL:
2502 status = VELOCITY_SPEED_100 | VELOCITY_DUPLEX_FULL;
2504 case SPD_DPX_10_FULL:
2505 status = VELOCITY_SPEED_10 | VELOCITY_DUPLEX_FULL;
2507 case SPD_DPX_100_HALF:
2508 status = VELOCITY_SPEED_100;
2510 case SPD_DPX_10_HALF:
2511 status = VELOCITY_SPEED_10;
2514 vptr->mii_status = status;
2519 * mii_set_auto_on - autonegotiate on
2522 * Enable autonegotation on this interface
2525 static void mii_set_auto_on(struct velocity_info *vptr)
2527 if (MII_REG_BITS_IS_ON(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs))
2528 MII_REG_BITS_ON(BMCR_REAUTO, MII_REG_BMCR, vptr->mac_regs);
2530 MII_REG_BITS_ON(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs);
2535 static void mii_set_auto_off(struct velocity_info * vptr)
2537 MII_REG_BITS_OFF(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs);
2542 * set_mii_flow_control - flow control setup
2543 * @vptr: velocity interface
2545 * Set up the flow control on this interface according to
2546 * the supplied user/eeprom options.
2549 static void set_mii_flow_control(struct velocity_info *vptr)
2551 /*Enable or Disable PAUSE in ANAR */
2552 switch (vptr->options.flow_cntl) {
2554 MII_REG_BITS_OFF(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs);
2555 MII_REG_BITS_ON(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs);
2559 MII_REG_BITS_ON(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs);
2560 MII_REG_BITS_ON(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs);
2563 case FLOW_CNTL_TX_RX:
2564 MII_REG_BITS_ON(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs);
2565 MII_REG_BITS_ON(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs);
2568 case FLOW_CNTL_DISABLE:
2569 MII_REG_BITS_OFF(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs);
2570 MII_REG_BITS_OFF(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs);
2578 * velocity_set_media_mode - set media mode
2579 * @mii_status: old MII link state
2581 * Check the media link state and configure the flow control
2582 * PHY and also velocity hardware setup accordingly. In particular
2583 * we need to set up CD polling and frame bursting.
2586 static int velocity_set_media_mode(struct velocity_info *vptr, u32 mii_status)
2589 struct mac_regs __iomem * regs = vptr->mac_regs;
2591 vptr->mii_status = mii_check_media_mode(vptr->mac_regs);
2592 curr_status = vptr->mii_status & (~VELOCITY_LINK_FAIL);
2594 /* Set mii link status */
2595 set_mii_flow_control(vptr);
2598 Check if new status is consisent with current status
2599 if (((mii_status & curr_status) & VELOCITY_AUTONEG_ENABLE)
2600 || (mii_status==curr_status)) {
2601 vptr->mii_status=mii_check_media_mode(vptr->mac_regs);
2602 vptr->mii_status=check_connection_type(vptr->mac_regs);
2603 VELOCITY_PRT(MSG_LEVEL_INFO, "Velocity link no change\n");
2608 if (PHYID_GET_PHY_ID(vptr->phy_id) == PHYID_CICADA_CS8201) {
2609 MII_REG_BITS_ON(AUXCR_MDPPS, MII_REG_AUXCR, vptr->mac_regs);
2613 * If connection type is AUTO
2615 if (mii_status & VELOCITY_AUTONEG_ENABLE) {
2616 VELOCITY_PRT(MSG_LEVEL_INFO, "Velocity is AUTO mode\n");
2617 /* clear force MAC mode bit */
2618 BYTE_REG_BITS_OFF(CHIPGCR_FCMODE, ®s->CHIPGCR);
2619 /* set duplex mode of MAC according to duplex mode of MII */
2620 MII_REG_BITS_ON(ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10, MII_REG_ANAR, vptr->mac_regs);
2621 MII_REG_BITS_ON(G1000CR_1000FD | G1000CR_1000, MII_REG_G1000CR, vptr->mac_regs);
2622 MII_REG_BITS_ON(BMCR_SPEED1G, MII_REG_BMCR, vptr->mac_regs);
2624 /* enable AUTO-NEGO mode */
2625 mii_set_auto_on(vptr);
2631 * 1. if it's 3119, disable frame bursting in halfduplex mode
2632 * and enable it in fullduplex mode
2633 * 2. set correct MII/GMII and half/full duplex mode in CHIPGCR
2634 * 3. only enable CD heart beat counter in 10HD mode
2637 /* set force MAC mode bit */
2638 BYTE_REG_BITS_ON(CHIPGCR_FCMODE, ®s->CHIPGCR);
2640 CHIPGCR = readb(®s->CHIPGCR);
2641 CHIPGCR &= ~CHIPGCR_FCGMII;
2643 if (mii_status & VELOCITY_DUPLEX_FULL) {
2644 CHIPGCR |= CHIPGCR_FCFDX;
2645 writeb(CHIPGCR, ®s->CHIPGCR);
2646 VELOCITY_PRT(MSG_LEVEL_INFO, "set Velocity to forced full mode\n");
2647 if (vptr->rev_id < REV_ID_VT3216_A0)
2648 BYTE_REG_BITS_OFF(TCR_TB2BDIS, ®s->TCR);
2650 CHIPGCR &= ~CHIPGCR_FCFDX;
2651 VELOCITY_PRT(MSG_LEVEL_INFO, "set Velocity to forced half mode\n");
2652 writeb(CHIPGCR, ®s->CHIPGCR);
2653 if (vptr->rev_id < REV_ID_VT3216_A0)
2654 BYTE_REG_BITS_ON(TCR_TB2BDIS, ®s->TCR);
2657 MII_REG_BITS_OFF(G1000CR_1000FD | G1000CR_1000, MII_REG_G1000CR, vptr->mac_regs);
2659 if (!(mii_status & VELOCITY_DUPLEX_FULL) && (mii_status & VELOCITY_SPEED_10)) {
2660 BYTE_REG_BITS_OFF(TESTCFG_HBDIS, ®s->TESTCFG);
2662 BYTE_REG_BITS_ON(TESTCFG_HBDIS, ®s->TESTCFG);
2664 /* MII_REG_BITS_OFF(BMCR_SPEED1G, MII_REG_BMCR, vptr->mac_regs); */
2665 velocity_mii_read(vptr->mac_regs, MII_REG_ANAR, &ANAR);
2666 ANAR &= (~(ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10));
2667 if (mii_status & VELOCITY_SPEED_100) {
2668 if (mii_status & VELOCITY_DUPLEX_FULL)
2673 if (mii_status & VELOCITY_DUPLEX_FULL)
2678 velocity_mii_write(vptr->mac_regs, MII_REG_ANAR, ANAR);
2679 /* enable AUTO-NEGO mode */
2680 mii_set_auto_on(vptr);
2681 /* MII_REG_BITS_ON(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs); */
2683 /* vptr->mii_status=mii_check_media_mode(vptr->mac_regs); */
2684 /* vptr->mii_status=check_connection_type(vptr->mac_regs); */
2685 return VELOCITY_LINK_CHANGE;
2689 * mii_check_media_mode - check media state
2690 * @regs: velocity registers
2692 * Check the current MII status and determine the link status
2696 static u32 mii_check_media_mode(struct mac_regs __iomem * regs)
2701 if (!MII_REG_BITS_IS_ON(BMSR_LNK, MII_REG_BMSR, regs))
2702 status |= VELOCITY_LINK_FAIL;
2704 if (MII_REG_BITS_IS_ON(G1000CR_1000FD, MII_REG_G1000CR, regs))
2705 status |= VELOCITY_SPEED_1000 | VELOCITY_DUPLEX_FULL;
2706 else if (MII_REG_BITS_IS_ON(G1000CR_1000, MII_REG_G1000CR, regs))
2707 status |= (VELOCITY_SPEED_1000);
2709 velocity_mii_read(regs, MII_REG_ANAR, &ANAR);
2710 if (ANAR & ANAR_TXFD)
2711 status |= (VELOCITY_SPEED_100 | VELOCITY_DUPLEX_FULL);
2712 else if (ANAR & ANAR_TX)
2713 status |= VELOCITY_SPEED_100;
2714 else if (ANAR & ANAR_10FD)
2715 status |= (VELOCITY_SPEED_10 | VELOCITY_DUPLEX_FULL);
2717 status |= (VELOCITY_SPEED_10);
2720 if (MII_REG_BITS_IS_ON(BMCR_AUTO, MII_REG_BMCR, regs)) {
2721 velocity_mii_read(regs, MII_REG_ANAR, &ANAR);
2722 if ((ANAR & (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10))
2723 == (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10)) {
2724 if (MII_REG_BITS_IS_ON(G1000CR_1000 | G1000CR_1000FD, MII_REG_G1000CR, regs))
2725 status |= VELOCITY_AUTONEG_ENABLE;
2732 static u32 check_connection_type(struct mac_regs __iomem * regs)
2737 PHYSR0 = readb(®s->PHYSR0);
2740 if (!(PHYSR0 & PHYSR0_LINKGD))
2741 status|=VELOCITY_LINK_FAIL;
2744 if (PHYSR0 & PHYSR0_FDPX)
2745 status |= VELOCITY_DUPLEX_FULL;
2747 if (PHYSR0 & PHYSR0_SPDG)
2748 status |= VELOCITY_SPEED_1000;
2749 if (PHYSR0 & PHYSR0_SPD10)
2750 status |= VELOCITY_SPEED_10;
2752 status |= VELOCITY_SPEED_100;
2754 if (MII_REG_BITS_IS_ON(BMCR_AUTO, MII_REG_BMCR, regs)) {
2755 velocity_mii_read(regs, MII_REG_ANAR, &ANAR);
2756 if ((ANAR & (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10))
2757 == (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10)) {
2758 if (MII_REG_BITS_IS_ON(G1000CR_1000 | G1000CR_1000FD, MII_REG_G1000CR, regs))
2759 status |= VELOCITY_AUTONEG_ENABLE;
2767 * enable_flow_control_ability - flow control
2768 * @vptr: veloity to configure
2770 * Set up flow control according to the flow control options
2771 * determined by the eeprom/configuration.
2774 static void enable_flow_control_ability(struct velocity_info *vptr)
2777 struct mac_regs __iomem * regs = vptr->mac_regs;
2779 switch (vptr->options.flow_cntl) {
2781 case FLOW_CNTL_DEFAULT:
2782 if (BYTE_REG_BITS_IS_ON(PHYSR0_RXFLC, ®s->PHYSR0))
2783 writel(CR0_FDXRFCEN, ®s->CR0Set);
2785 writel(CR0_FDXRFCEN, ®s->CR0Clr);
2787 if (BYTE_REG_BITS_IS_ON(PHYSR0_TXFLC, ®s->PHYSR0))
2788 writel(CR0_FDXTFCEN, ®s->CR0Set);
2790 writel(CR0_FDXTFCEN, ®s->CR0Clr);
2794 writel(CR0_FDXTFCEN, ®s->CR0Set);
2795 writel(CR0_FDXRFCEN, ®s->CR0Clr);
2799 writel(CR0_FDXRFCEN, ®s->CR0Set);
2800 writel(CR0_FDXTFCEN, ®s->CR0Clr);
2803 case FLOW_CNTL_TX_RX:
2804 writel(CR0_FDXTFCEN, ®s->CR0Set);
2805 writel(CR0_FDXRFCEN, ®s->CR0Set);
2808 case FLOW_CNTL_DISABLE:
2809 writel(CR0_FDXRFCEN, ®s->CR0Clr);
2810 writel(CR0_FDXTFCEN, ®s->CR0Clr);
2821 * velocity_ethtool_up - pre hook for ethtool
2822 * @dev: network device
2824 * Called before an ethtool operation. We need to make sure the
2825 * chip is out of D3 state before we poke at it.
2828 static int velocity_ethtool_up(struct net_device *dev)
2830 struct velocity_info *vptr = dev->priv;
2831 if (!netif_running(dev))
2832 pci_set_power_state(vptr->pdev, PCI_D0);
2837 * velocity_ethtool_down - post hook for ethtool
2838 * @dev: network device
2840 * Called after an ethtool operation. Restore the chip back to D3
2841 * state if it isn't running.
2844 static void velocity_ethtool_down(struct net_device *dev)
2846 struct velocity_info *vptr = dev->priv;
2847 if (!netif_running(dev))
2848 pci_set_power_state(vptr->pdev, PCI_D3hot);
2851 static int velocity_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
2853 struct velocity_info *vptr = dev->priv;
2854 struct mac_regs __iomem * regs = vptr->mac_regs;
2856 status = check_connection_type(vptr->mac_regs);
2858 cmd->supported = SUPPORTED_TP | SUPPORTED_Autoneg | SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full | SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full | SUPPORTED_1000baseT_Half | SUPPORTED_1000baseT_Full;
2859 if (status & VELOCITY_SPEED_100)
2860 cmd->speed = SPEED_100;
2862 cmd->speed = SPEED_10;
2863 cmd->autoneg = (status & VELOCITY_AUTONEG_ENABLE) ? AUTONEG_ENABLE : AUTONEG_DISABLE;
2864 cmd->port = PORT_TP;
2865 cmd->transceiver = XCVR_INTERNAL;
2866 cmd->phy_address = readb(®s->MIIADR) & 0x1F;
2868 if (status & VELOCITY_DUPLEX_FULL)
2869 cmd->duplex = DUPLEX_FULL;
2871 cmd->duplex = DUPLEX_HALF;
2876 static int velocity_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
2878 struct velocity_info *vptr = dev->priv;
2883 curr_status = check_connection_type(vptr->mac_regs);
2884 curr_status &= (~VELOCITY_LINK_FAIL);
2886 new_status |= ((cmd->autoneg) ? VELOCITY_AUTONEG_ENABLE : 0);
2887 new_status |= ((cmd->speed == SPEED_100) ? VELOCITY_SPEED_100 : 0);
2888 new_status |= ((cmd->speed == SPEED_10) ? VELOCITY_SPEED_10 : 0);
2889 new_status |= ((cmd->duplex == DUPLEX_FULL) ? VELOCITY_DUPLEX_FULL : 0);
2891 if ((new_status & VELOCITY_AUTONEG_ENABLE) && (new_status != (curr_status | VELOCITY_AUTONEG_ENABLE)))
2894 velocity_set_media_mode(vptr, new_status);
2899 static u32 velocity_get_link(struct net_device *dev)
2901 struct velocity_info *vptr = dev->priv;
2902 struct mac_regs __iomem * regs = vptr->mac_regs;
2903 return BYTE_REG_BITS_IS_ON(PHYSR0_LINKGD, ®s->PHYSR0) ? 0 : 1;
2906 static void velocity_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
2908 struct velocity_info *vptr = dev->priv;
2909 strcpy(info->driver, VELOCITY_NAME);
2910 strcpy(info->version, VELOCITY_VERSION);
2911 strcpy(info->bus_info, pci_name(vptr->pdev));
2914 static void velocity_ethtool_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
2916 struct velocity_info *vptr = dev->priv;
2917 wol->supported = WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_ARP;
2918 wol->wolopts |= WAKE_MAGIC;
2920 if (vptr->wol_opts & VELOCITY_WOL_PHY)
2921 wol.wolopts|=WAKE_PHY;
2923 if (vptr->wol_opts & VELOCITY_WOL_UCAST)
2924 wol->wolopts |= WAKE_UCAST;
2925 if (vptr->wol_opts & VELOCITY_WOL_ARP)
2926 wol->wolopts |= WAKE_ARP;
2927 memcpy(&wol->sopass, vptr->wol_passwd, 6);
2930 static int velocity_ethtool_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
2932 struct velocity_info *vptr = dev->priv;
2934 if (!(wol->wolopts & (WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_ARP)))
2936 vptr->wol_opts = VELOCITY_WOL_MAGIC;
2939 if (wol.wolopts & WAKE_PHY) {
2940 vptr->wol_opts|=VELOCITY_WOL_PHY;
2941 vptr->flags |=VELOCITY_FLAGS_WOL_ENABLED;
2945 if (wol->wolopts & WAKE_MAGIC) {
2946 vptr->wol_opts |= VELOCITY_WOL_MAGIC;
2947 vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED;
2949 if (wol->wolopts & WAKE_UCAST) {
2950 vptr->wol_opts |= VELOCITY_WOL_UCAST;
2951 vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED;
2953 if (wol->wolopts & WAKE_ARP) {
2954 vptr->wol_opts |= VELOCITY_WOL_ARP;
2955 vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED;
2957 memcpy(vptr->wol_passwd, wol->sopass, 6);
2961 static u32 velocity_get_msglevel(struct net_device *dev)
2966 static void velocity_set_msglevel(struct net_device *dev, u32 value)
2971 static struct ethtool_ops velocity_ethtool_ops = {
2972 .get_settings = velocity_get_settings,
2973 .set_settings = velocity_set_settings,
2974 .get_drvinfo = velocity_get_drvinfo,
2975 .get_wol = velocity_ethtool_get_wol,
2976 .set_wol = velocity_ethtool_set_wol,
2977 .get_msglevel = velocity_get_msglevel,
2978 .set_msglevel = velocity_set_msglevel,
2979 .get_link = velocity_get_link,
2980 .begin = velocity_ethtool_up,
2981 .complete = velocity_ethtool_down
2985 * velocity_mii_ioctl - MII ioctl handler
2986 * @dev: network device
2987 * @ifr: the ifreq block for the ioctl
2990 * Process MII requests made via ioctl from the network layer. These
2991 * are used by tools like kudzu to interrogate the link state of the
2995 static int velocity_mii_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
2997 struct velocity_info *vptr = dev->priv;
2998 struct mac_regs __iomem * regs = vptr->mac_regs;
2999 unsigned long flags;
3000 struct mii_ioctl_data *miidata = if_mii(ifr);
3005 miidata->phy_id = readb(®s->MIIADR) & 0x1f;
3008 if (!capable(CAP_NET_ADMIN))
3010 if(velocity_mii_read(vptr->mac_regs, miidata->reg_num & 0x1f, &(miidata->val_out)) < 0)
3014 if (!capable(CAP_NET_ADMIN))
3016 spin_lock_irqsave(&vptr->lock, flags);
3017 err = velocity_mii_write(vptr->mac_regs, miidata->reg_num & 0x1f, miidata->val_in);
3018 spin_unlock_irqrestore(&vptr->lock, flags);
3019 check_connection_type(vptr->mac_regs);
3032 * velocity_save_context - save registers
3034 * @context: buffer for stored context
3036 * Retrieve the current configuration from the velocity hardware
3037 * and stash it in the context structure, for use by the context
3038 * restore functions. This allows us to save things we need across
3042 static void velocity_save_context(struct velocity_info *vptr, struct velocity_context * context)
3044 struct mac_regs __iomem * regs = vptr->mac_regs;
3046 u8 __iomem *ptr = (u8 __iomem *)regs;
3048 for (i = MAC_REG_PAR; i < MAC_REG_CR0_CLR; i += 4)
3049 *((u32 *) (context->mac_reg + i)) = readl(ptr + i);
3051 for (i = MAC_REG_MAR; i < MAC_REG_TDCSR_CLR; i += 4)
3052 *((u32 *) (context->mac_reg + i)) = readl(ptr + i);
3054 for (i = MAC_REG_RDBASE_LO; i < MAC_REG_FIFO_TEST0; i += 4)
3055 *((u32 *) (context->mac_reg + i)) = readl(ptr + i);
3060 * velocity_restore_context - restore registers
3062 * @context: buffer for stored context
3064 * Reload the register configuration from the velocity context
3065 * created by velocity_save_context.
3068 static void velocity_restore_context(struct velocity_info *vptr, struct velocity_context *context)
3070 struct mac_regs __iomem * regs = vptr->mac_regs;
3072 u8 __iomem *ptr = (u8 __iomem *)regs;
3074 for (i = MAC_REG_PAR; i < MAC_REG_CR0_SET; i += 4) {
3075 writel(*((u32 *) (context->mac_reg + i)), ptr + i);
3079 for (i = MAC_REG_CR1_SET; i < MAC_REG_CR0_CLR; i++) {
3081 writeb(~(*((u8 *) (context->mac_reg + i))), ptr + i + 4);
3083 writeb(*((u8 *) (context->mac_reg + i)), ptr + i);
3086 for (i = MAC_REG_MAR; i < MAC_REG_IMR; i += 4) {
3087 writel(*((u32 *) (context->mac_reg + i)), ptr + i);
3090 for (i = MAC_REG_RDBASE_LO; i < MAC_REG_FIFO_TEST0; i += 4) {
3091 writel(*((u32 *) (context->mac_reg + i)), ptr + i);
3094 for (i = MAC_REG_TDCSR_SET; i <= MAC_REG_RDCSR_SET; i++) {
3095 writeb(*((u8 *) (context->mac_reg + i)), ptr + i);
3101 * wol_calc_crc - WOL CRC
3102 * @pattern: data pattern
3103 * @mask_pattern: mask
3105 * Compute the wake on lan crc hashes for the packet header
3106 * we are interested in.
3109 static u16 wol_calc_crc(int size, u8 * pattern, u8 *mask_pattern)
3115 for (i = 0; i < size; i++) {
3116 mask = mask_pattern[i];
3118 /* Skip this loop if the mask equals to zero */
3122 for (j = 0; j < 8; j++) {
3123 if ((mask & 0x01) == 0) {
3128 crc = crc_ccitt(crc, &(pattern[i * 8 + j]), 1);
3131 /* Finally, invert the result once to get the correct data */
3133 return bitreverse(crc) >> 16;
3137 * velocity_set_wol - set up for wake on lan
3138 * @vptr: velocity to set WOL status on
3140 * Set a card up for wake on lan either by unicast or by
3143 * FIXME: check static buffer is safe here
3146 static int velocity_set_wol(struct velocity_info *vptr)
3148 struct mac_regs __iomem * regs = vptr->mac_regs;
3152 static u32 mask_pattern[2][4] = {
3153 {0x00203000, 0x000003C0, 0x00000000, 0x0000000}, /* ARP */
3154 {0xfffff000, 0xffffffff, 0xffffffff, 0x000ffff} /* Magic Packet */
3157 writew(0xFFFF, ®s->WOLCRClr);
3158 writeb(WOLCFG_SAB | WOLCFG_SAM, ®s->WOLCFGSet);
3159 writew(WOLCR_MAGIC_EN, ®s->WOLCRSet);
3162 if (vptr->wol_opts & VELOCITY_WOL_PHY)
3163 writew((WOLCR_LINKON_EN|WOLCR_LINKOFF_EN), ®s->WOLCRSet);
3166 if (vptr->wol_opts & VELOCITY_WOL_UCAST) {
3167 writew(WOLCR_UNICAST_EN, ®s->WOLCRSet);
3170 if (vptr->wol_opts & VELOCITY_WOL_ARP) {
3171 struct arp_packet *arp = (struct arp_packet *) buf;
3173 memset(buf, 0, sizeof(struct arp_packet) + 7);
3175 for (i = 0; i < 4; i++)
3176 writel(mask_pattern[0][i], ®s->ByteMask[0][i]);
3178 arp->type = htons(ETH_P_ARP);
3179 arp->ar_op = htons(1);
3181 memcpy(arp->ar_tip, vptr->ip_addr, 4);
3183 crc = wol_calc_crc((sizeof(struct arp_packet) + 7) / 8, buf,
3184 (u8 *) & mask_pattern[0][0]);
3186 writew(crc, ®s->PatternCRC[0]);
3187 writew(WOLCR_ARP_EN, ®s->WOLCRSet);
3190 BYTE_REG_BITS_ON(PWCFG_WOLTYPE, ®s->PWCFGSet);
3191 BYTE_REG_BITS_ON(PWCFG_LEGACY_WOLEN, ®s->PWCFGSet);
3193 writew(0x0FFF, ®s->WOLSRClr);
3195 if (vptr->mii_status & VELOCITY_AUTONEG_ENABLE) {
3196 if (PHYID_GET_PHY_ID(vptr->phy_id) == PHYID_CICADA_CS8201)
3197 MII_REG_BITS_ON(AUXCR_MDPPS, MII_REG_AUXCR, vptr->mac_regs);
3199 MII_REG_BITS_OFF(G1000CR_1000FD | G1000CR_1000, MII_REG_G1000CR, vptr->mac_regs);
3202 if (vptr->mii_status & VELOCITY_SPEED_1000)
3203 MII_REG_BITS_ON(BMCR_REAUTO, MII_REG_BMCR, vptr->mac_regs);
3205 BYTE_REG_BITS_ON(CHIPGCR_FCMODE, ®s->CHIPGCR);
3209 GCR = readb(®s->CHIPGCR);
3210 GCR = (GCR & ~CHIPGCR_FCGMII) | CHIPGCR_FCFDX;
3211 writeb(GCR, ®s->CHIPGCR);
3214 BYTE_REG_BITS_OFF(ISR_PWEI, ®s->ISR);
3215 /* Turn on SWPTAG just before entering power mode */
3216 BYTE_REG_BITS_ON(STICKHW_SWPTAG, ®s->STICKHW);
3217 /* Go to bed ..... */
3218 BYTE_REG_BITS_ON((STICKHW_DS1 | STICKHW_DS0), ®s->STICKHW);
3223 static int velocity_suspend(struct pci_dev *pdev, pm_message_t state)
3225 struct net_device *dev = pci_get_drvdata(pdev);
3226 struct velocity_info *vptr = netdev_priv(dev);
3227 unsigned long flags;
3229 if(!netif_running(vptr->dev))
3232 netif_device_detach(vptr->dev);
3234 spin_lock_irqsave(&vptr->lock, flags);
3235 pci_save_state(pdev);
3237 if (vptr->flags & VELOCITY_FLAGS_WOL_ENABLED) {
3238 velocity_get_ip(vptr);
3239 velocity_save_context(vptr, &vptr->context);
3240 velocity_shutdown(vptr);
3241 velocity_set_wol(vptr);
3242 pci_enable_wake(pdev, 3, 1);
3243 pci_set_power_state(pdev, PCI_D3hot);
3245 velocity_save_context(vptr, &vptr->context);
3246 velocity_shutdown(vptr);
3247 pci_disable_device(pdev);
3248 pci_set_power_state(pdev, pci_choose_state(pdev, state));
3251 pci_set_power_state(pdev, pci_choose_state(pdev, state));
3253 spin_unlock_irqrestore(&vptr->lock, flags);
3257 static int velocity_resume(struct pci_dev *pdev)
3259 struct net_device *dev = pci_get_drvdata(pdev);
3260 struct velocity_info *vptr = netdev_priv(dev);
3261 unsigned long flags;
3264 if(!netif_running(vptr->dev))
3267 pci_set_power_state(pdev, PCI_D0);
3268 pci_enable_wake(pdev, 0, 0);
3269 pci_restore_state(pdev);
3271 mac_wol_reset(vptr->mac_regs);
3273 spin_lock_irqsave(&vptr->lock, flags);
3274 velocity_restore_context(vptr, &vptr->context);
3275 velocity_init_registers(vptr, VELOCITY_INIT_WOL);
3276 mac_disable_int(vptr->mac_regs);
3278 velocity_tx_srv(vptr, 0);
3280 for (i = 0; i < vptr->num_txq; i++) {
3281 if (vptr->td_used[i]) {
3282 mac_tx_queue_wake(vptr->mac_regs, i);
3286 mac_enable_int(vptr->mac_regs);
3287 spin_unlock_irqrestore(&vptr->lock, flags);
3288 netif_device_attach(vptr->dev);
3293 static int velocity_netdev_event(struct notifier_block *nb, unsigned long notification, void *ptr)
3295 struct in_ifaddr *ifa = (struct in_ifaddr *) ptr;
3298 struct net_device *dev = ifa->ifa_dev->dev;
3299 struct velocity_info *vptr;
3300 unsigned long flags;
3302 spin_lock_irqsave(&velocity_dev_list_lock, flags);
3303 list_for_each_entry(vptr, &velocity_dev_list, list) {
3304 if (vptr->dev == dev) {
3305 velocity_get_ip(vptr);
3309 spin_unlock_irqrestore(&velocity_dev_list_lock, flags);