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/version.h>
65 #include <linux/string.h>
66 #include <linux/wait.h>
69 #include <linux/config.h>
70 #include <asm/uaccess.h>
71 #include <linux/proc_fs.h>
72 #include <linux/inetdevice.h>
73 #include <linux/reboot.h>
74 #include <linux/ethtool.h>
75 #include <linux/mii.h>
77 #include <linux/if_arp.h>
79 #include <linux/tcp.h>
80 #include <linux/udp.h>
81 #include <linux/crc-ccitt.h>
82 #include <linux/crc32.h>
84 #include "via-velocity.h"
87 static int velocity_nics = 0;
88 static int msglevel = MSG_LEVEL_INFO;
91 static int velocity_mii_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd);
92 static struct ethtool_ops velocity_ethtool_ops;
98 MODULE_AUTHOR("VIA Networking Technologies, Inc.");
99 MODULE_LICENSE("GPL");
100 MODULE_DESCRIPTION("VIA Networking Velocity Family Gigabit Ethernet Adapter Driver");
102 #define VELOCITY_PARAM(N,D) \
103 static int N[MAX_UNITS]=OPTION_DEFAULT;\
104 module_param_array(N, int, NULL, 0); \
105 MODULE_PARM_DESC(N, D);
107 #define RX_DESC_MIN 64
108 #define RX_DESC_MAX 255
109 #define RX_DESC_DEF 64
110 VELOCITY_PARAM(RxDescriptors, "Number of receive descriptors");
112 #define TX_DESC_MIN 16
113 #define TX_DESC_MAX 256
114 #define TX_DESC_DEF 64
115 VELOCITY_PARAM(TxDescriptors, "Number of transmit descriptors");
117 #define VLAN_ID_MIN 0
118 #define VLAN_ID_MAX 4095
119 #define VLAN_ID_DEF 0
120 /* VID_setting[] is used for setting the VID of NIC.
124 VELOCITY_PARAM(VID_setting, "802.1Q VLAN ID");
126 #define RX_THRESH_MIN 0
127 #define RX_THRESH_MAX 3
128 #define RX_THRESH_DEF 0
129 /* rx_thresh[] is used for controlling the receive fifo threshold.
130 0: indicate the rxfifo threshold is 128 bytes.
131 1: indicate the rxfifo threshold is 512 bytes.
132 2: indicate the rxfifo threshold is 1024 bytes.
133 3: indicate the rxfifo threshold is store & forward.
135 VELOCITY_PARAM(rx_thresh, "Receive fifo threshold");
137 #define DMA_LENGTH_MIN 0
138 #define DMA_LENGTH_MAX 7
139 #define DMA_LENGTH_DEF 0
141 /* DMA_length[] is used for controlling the DMA length
148 6: SF(flush till emply)
149 7: SF(flush till emply)
151 VELOCITY_PARAM(DMA_length, "DMA length");
153 #define TAGGING_DEF 0
154 /* enable_tagging[] is used for enabling 802.1Q VID tagging.
155 0: disable VID seeting(default).
156 1: enable VID setting.
158 VELOCITY_PARAM(enable_tagging, "Enable 802.1Q tagging");
160 #define IP_ALIG_DEF 0
161 /* IP_byte_align[] is used for IP header DWORD byte aligned
162 0: indicate the IP header won't be DWORD byte aligned.(Default) .
163 1: indicate the IP header will be DWORD byte aligned.
164 In some enviroment, the IP header should be DWORD byte aligned,
165 or the packet will be droped when we receive it. (eg: IPVS)
167 VELOCITY_PARAM(IP_byte_align, "Enable IP header dword aligned");
169 #define TX_CSUM_DEF 1
170 /* txcsum_offload[] is used for setting the checksum offload ability of NIC.
171 (We only support RX checksum offload now)
172 0: disable csum_offload[checksum offload
173 1: enable checksum offload. (Default)
175 VELOCITY_PARAM(txcsum_offload, "Enable transmit packet checksum offload");
177 #define FLOW_CNTL_DEF 1
178 #define FLOW_CNTL_MIN 1
179 #define FLOW_CNTL_MAX 5
181 /* flow_control[] is used for setting the flow control ability of NIC.
182 1: hardware deafult - AUTO (default). Use Hardware default value in ANAR.
183 2: enable TX flow control.
184 3: enable RX flow control.
185 4: enable RX/TX flow control.
188 VELOCITY_PARAM(flow_control, "Enable flow control ability");
190 #define MED_LNK_DEF 0
191 #define MED_LNK_MIN 0
192 #define MED_LNK_MAX 4
193 /* speed_duplex[] is used for setting the speed and duplex mode of NIC.
194 0: indicate autonegotiation for both speed and duplex mode
195 1: indicate 100Mbps half duplex mode
196 2: indicate 100Mbps full duplex mode
197 3: indicate 10Mbps half duplex mode
198 4: indicate 10Mbps full duplex mode
201 if EEPROM have been set to the force mode, this option is ignored
204 VELOCITY_PARAM(speed_duplex, "Setting the speed and duplex mode");
206 #define VAL_PKT_LEN_DEF 0
207 /* ValPktLen[] is used for setting the checksum offload ability of NIC.
208 0: Receive frame with invalid layer 2 length (Default)
209 1: Drop frame with invalid layer 2 length
211 VELOCITY_PARAM(ValPktLen, "Receiving or Drop invalid 802.3 frame");
213 #define WOL_OPT_DEF 0
214 #define WOL_OPT_MIN 0
215 #define WOL_OPT_MAX 7
216 /* wol_opts[] is used for controlling wake on lan behavior.
217 0: Wake up if recevied a magic packet. (Default)
218 1: Wake up if link status is on/off.
219 2: Wake up if recevied an arp packet.
220 4: Wake up if recevied any unicast packet.
221 Those value can be sumed up to support more than one option.
223 VELOCITY_PARAM(wol_opts, "Wake On Lan options");
225 #define INT_WORKS_DEF 20
226 #define INT_WORKS_MIN 10
227 #define INT_WORKS_MAX 64
229 VELOCITY_PARAM(int_works, "Number of packets per interrupt services");
231 static int rx_copybreak = 200;
232 module_param(rx_copybreak, int, 0644);
233 MODULE_PARM_DESC(rx_copybreak, "Copy breakpoint for copy-only-tiny-frames");
235 static void velocity_init_info(struct pci_dev *pdev, struct velocity_info *vptr, struct velocity_info_tbl *info);
236 static int velocity_get_pci_info(struct velocity_info *, struct pci_dev *pdev);
237 static void velocity_print_info(struct velocity_info *vptr);
238 static int velocity_open(struct net_device *dev);
239 static int velocity_change_mtu(struct net_device *dev, int mtu);
240 static int velocity_xmit(struct sk_buff *skb, struct net_device *dev);
241 static int velocity_intr(int irq, void *dev_instance, struct pt_regs *regs);
242 static void velocity_set_multi(struct net_device *dev);
243 static struct net_device_stats *velocity_get_stats(struct net_device *dev);
244 static int velocity_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
245 static int velocity_close(struct net_device *dev);
246 static int velocity_receive_frame(struct velocity_info *, int idx);
247 static int velocity_alloc_rx_buf(struct velocity_info *, int idx);
248 static void velocity_free_rd_ring(struct velocity_info *vptr);
249 static void velocity_free_tx_buf(struct velocity_info *vptr, struct velocity_td_info *);
250 static int velocity_soft_reset(struct velocity_info *vptr);
251 static void mii_init(struct velocity_info *vptr, u32 mii_status);
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_HW_CSUM;
798 ret = register_netdev(dev);
802 velocity_print_info(vptr);
803 pci_set_drvdata(pdev, dev);
805 /* and leave the chip powered down */
807 pci_set_power_state(pdev, PCI_D3hot);
812 spin_lock_irqsave(&velocity_dev_list_lock, flags);
813 list_add(&vptr->list, &velocity_dev_list);
814 spin_unlock_irqrestore(&velocity_dev_list_lock, flags);
824 pci_release_regions(pdev);
826 pci_disable_device(pdev);
833 * velocity_print_info - per driver data
836 * Print per driver data as the kernel driver finds Velocity
840 static void __devinit velocity_print_info(struct velocity_info *vptr)
842 struct net_device *dev = vptr->dev;
844 printk(KERN_INFO "%s: %s\n", dev->name, get_chip_name(vptr->chip_id));
845 printk(KERN_INFO "%s: Ethernet Address: %2.2X:%2.2X:%2.2X:%2.2X:%2.2X:%2.2X\n",
847 dev->dev_addr[0], dev->dev_addr[1], dev->dev_addr[2],
848 dev->dev_addr[3], dev->dev_addr[4], dev->dev_addr[5]);
852 * velocity_init_info - init private data
854 * @vptr: Velocity info
857 * Set up the initial velocity_info struct for the device that has been
861 static void __devinit velocity_init_info(struct pci_dev *pdev, struct velocity_info *vptr, struct velocity_info_tbl *info)
863 memset(vptr, 0, sizeof(struct velocity_info));
866 vptr->chip_id = info->chip_id;
867 vptr->io_size = info->io_size;
868 vptr->num_txq = info->txqueue;
869 vptr->multicast_limit = MCAM_SIZE;
870 spin_lock_init(&vptr->lock);
871 INIT_LIST_HEAD(&vptr->list);
875 * velocity_get_pci_info - retrieve PCI info for device
876 * @vptr: velocity device
877 * @pdev: PCI device it matches
879 * Retrieve the PCI configuration space data that interests us from
880 * the kernel PCI layer
883 static int __devinit velocity_get_pci_info(struct velocity_info *vptr, struct pci_dev *pdev)
886 if(pci_read_config_byte(pdev, PCI_REVISION_ID, &vptr->rev_id) < 0)
889 pci_set_master(pdev);
891 vptr->ioaddr = pci_resource_start(pdev, 0);
892 vptr->memaddr = pci_resource_start(pdev, 1);
894 if(!(pci_resource_flags(pdev, 0) & IORESOURCE_IO))
896 printk(KERN_ERR "%s: region #0 is not an I/O resource, aborting.\n",
901 if((pci_resource_flags(pdev, 1) & IORESOURCE_IO))
903 printk(KERN_ERR "%s: region #1 is an I/O resource, aborting.\n",
908 if(pci_resource_len(pdev, 1) < 256)
910 printk(KERN_ERR "%s: region #1 is too small.\n",
920 * velocity_init_rings - set up DMA rings
921 * @vptr: Velocity to set up
923 * Allocate PCI mapped DMA rings for the receive and transmit layer
927 static int velocity_init_rings(struct velocity_info *vptr)
936 * Allocate all RD/TD rings a single pool
939 psize = vptr->options.numrx * sizeof(struct rx_desc) +
940 vptr->options.numtx * sizeof(struct tx_desc) * vptr->num_txq;
943 * pci_alloc_consistent() fulfills the requirement for 64 bytes
946 pool = pci_alloc_consistent(vptr->pdev, psize, &pool_dma);
949 printk(KERN_ERR "%s : DMA memory allocation failed.\n",
954 memset(pool, 0, psize);
956 vptr->rd_ring = (struct rx_desc *) pool;
958 vptr->rd_pool_dma = pool_dma;
960 tsize = vptr->options.numtx * PKT_BUF_SZ * vptr->num_txq;
961 vptr->tx_bufs = pci_alloc_consistent(vptr->pdev, tsize,
964 if (vptr->tx_bufs == NULL) {
965 printk(KERN_ERR "%s: DMA memory allocation failed.\n",
967 pci_free_consistent(vptr->pdev, psize, pool, pool_dma);
971 memset(vptr->tx_bufs, 0, vptr->options.numtx * PKT_BUF_SZ * vptr->num_txq);
973 i = vptr->options.numrx * sizeof(struct rx_desc);
976 for (i = 0; i < vptr->num_txq; i++) {
977 int offset = vptr->options.numtx * sizeof(struct tx_desc);
979 vptr->td_pool_dma[i] = pool_dma;
980 vptr->td_rings[i] = (struct tx_desc *) pool;
988 * velocity_free_rings - free PCI ring pointers
989 * @vptr: Velocity to free from
991 * Clean up the PCI ring buffers allocated to this velocity.
994 static void velocity_free_rings(struct velocity_info *vptr)
998 size = vptr->options.numrx * sizeof(struct rx_desc) +
999 vptr->options.numtx * sizeof(struct tx_desc) * vptr->num_txq;
1001 pci_free_consistent(vptr->pdev, size, vptr->rd_ring, vptr->rd_pool_dma);
1003 size = vptr->options.numtx * PKT_BUF_SZ * vptr->num_txq;
1005 pci_free_consistent(vptr->pdev, size, vptr->tx_bufs, vptr->tx_bufs_dma);
1008 static inline void velocity_give_many_rx_descs(struct velocity_info *vptr)
1010 struct mac_regs __iomem *regs = vptr->mac_regs;
1011 int avail, dirty, unusable;
1014 * RD number must be equal to 4X per hardware spec
1015 * (programming guide rev 1.20, p.13)
1017 if (vptr->rd_filled < 4)
1022 unusable = vptr->rd_filled & 0x0003;
1023 dirty = vptr->rd_dirty - unusable;
1024 for (avail = vptr->rd_filled & 0xfffc; avail; avail--) {
1025 dirty = (dirty > 0) ? dirty - 1 : vptr->options.numrx - 1;
1026 vptr->rd_ring[dirty].rdesc0.owner = OWNED_BY_NIC;
1029 writew(vptr->rd_filled & 0xfffc, ®s->RBRDU);
1030 vptr->rd_filled = unusable;
1033 static int velocity_rx_refill(struct velocity_info *vptr)
1035 int dirty = vptr->rd_dirty, done = 0, ret = 0;
1038 struct rx_desc *rd = vptr->rd_ring + dirty;
1040 /* Fine for an all zero Rx desc at init time as well */
1041 if (rd->rdesc0.owner == OWNED_BY_NIC)
1044 if (!vptr->rd_info[dirty].skb) {
1045 ret = velocity_alloc_rx_buf(vptr, dirty);
1050 dirty = (dirty < vptr->options.numrx - 1) ? dirty + 1 : 0;
1051 } while (dirty != vptr->rd_curr);
1054 vptr->rd_dirty = dirty;
1055 vptr->rd_filled += done;
1056 velocity_give_many_rx_descs(vptr);
1063 * velocity_init_rd_ring - set up receive ring
1064 * @vptr: velocity to configure
1066 * Allocate and set up the receive buffers for each ring slot and
1067 * assign them to the network adapter.
1070 static int velocity_init_rd_ring(struct velocity_info *vptr)
1073 unsigned int rsize = sizeof(struct velocity_rd_info) *
1074 vptr->options.numrx;
1076 vptr->rd_info = kmalloc(rsize, GFP_KERNEL);
1077 if(vptr->rd_info == NULL)
1079 memset(vptr->rd_info, 0, rsize);
1081 vptr->rd_filled = vptr->rd_dirty = vptr->rd_curr = 0;
1083 ret = velocity_rx_refill(vptr);
1085 VELOCITY_PRT(MSG_LEVEL_ERR, KERN_ERR
1086 "%s: failed to allocate RX buffer.\n", vptr->dev->name);
1087 velocity_free_rd_ring(vptr);
1094 * velocity_free_rd_ring - free receive ring
1095 * @vptr: velocity to clean up
1097 * Free the receive buffers for each ring slot and any
1098 * attached socket buffers that need to go away.
1101 static void velocity_free_rd_ring(struct velocity_info *vptr)
1105 if (vptr->rd_info == NULL)
1108 for (i = 0; i < vptr->options.numrx; i++) {
1109 struct velocity_rd_info *rd_info = &(vptr->rd_info[i]);
1113 pci_unmap_single(vptr->pdev, rd_info->skb_dma, vptr->rx_buf_sz,
1114 PCI_DMA_FROMDEVICE);
1115 rd_info->skb_dma = (dma_addr_t) NULL;
1117 dev_kfree_skb(rd_info->skb);
1118 rd_info->skb = NULL;
1121 kfree(vptr->rd_info);
1122 vptr->rd_info = NULL;
1126 * velocity_init_td_ring - set up transmit ring
1129 * Set up the transmit ring and chain the ring pointers together.
1130 * Returns zero on success or a negative posix errno code for
1134 static int velocity_init_td_ring(struct velocity_info *vptr)
1139 struct velocity_td_info *td_info;
1140 unsigned int tsize = sizeof(struct velocity_td_info) *
1141 vptr->options.numtx;
1143 /* Init the TD ring entries */
1144 for (j = 0; j < vptr->num_txq; j++) {
1145 curr = vptr->td_pool_dma[j];
1147 vptr->td_infos[j] = kmalloc(tsize, GFP_KERNEL);
1148 if(vptr->td_infos[j] == NULL)
1151 kfree(vptr->td_infos[j]);
1154 memset(vptr->td_infos[j], 0, tsize);
1156 for (i = 0; i < vptr->options.numtx; i++, curr += sizeof(struct tx_desc)) {
1157 td = &(vptr->td_rings[j][i]);
1158 td_info = &(vptr->td_infos[j][i]);
1159 td_info->buf = vptr->tx_bufs +
1160 (j * vptr->options.numtx + i) * PKT_BUF_SZ;
1161 td_info->buf_dma = vptr->tx_bufs_dma +
1162 (j * vptr->options.numtx + i) * PKT_BUF_SZ;
1164 vptr->td_tail[j] = vptr->td_curr[j] = vptr->td_used[j] = 0;
1170 * FIXME: could we merge this with velocity_free_tx_buf ?
1173 static void velocity_free_td_ring_entry(struct velocity_info *vptr,
1176 struct velocity_td_info * td_info = &(vptr->td_infos[q][n]);
1179 if (td_info == NULL)
1183 for (i = 0; i < td_info->nskb_dma; i++)
1185 if (td_info->skb_dma[i]) {
1186 pci_unmap_single(vptr->pdev, td_info->skb_dma[i],
1187 td_info->skb->len, PCI_DMA_TODEVICE);
1188 td_info->skb_dma[i] = (dma_addr_t) NULL;
1191 dev_kfree_skb(td_info->skb);
1192 td_info->skb = NULL;
1197 * velocity_free_td_ring - free td ring
1200 * Free up the transmit ring for this particular velocity adapter.
1201 * We free the ring contents but not the ring itself.
1204 static void velocity_free_td_ring(struct velocity_info *vptr)
1208 for (j = 0; j < vptr->num_txq; j++) {
1209 if (vptr->td_infos[j] == NULL)
1211 for (i = 0; i < vptr->options.numtx; i++) {
1212 velocity_free_td_ring_entry(vptr, j, i);
1215 if (vptr->td_infos[j]) {
1216 kfree(vptr->td_infos[j]);
1217 vptr->td_infos[j] = NULL;
1223 * velocity_rx_srv - service RX interrupt
1225 * @status: adapter status (unused)
1227 * Walk the receive ring of the velocity adapter and remove
1228 * any received packets from the receive queue. Hand the ring
1229 * slots back to the adapter for reuse.
1232 static int velocity_rx_srv(struct velocity_info *vptr, int status)
1234 struct net_device_stats *stats = &vptr->stats;
1235 int rd_curr = vptr->rd_curr;
1239 struct rx_desc *rd = vptr->rd_ring + rd_curr;
1241 if (!vptr->rd_info[rd_curr].skb)
1244 if (rd->rdesc0.owner == OWNED_BY_NIC)
1250 * Don't drop CE or RL error frame although RXOK is off
1252 if ((rd->rdesc0.RSR & RSR_RXOK) || (!(rd->rdesc0.RSR & RSR_RXOK) && (rd->rdesc0.RSR & (RSR_CE | RSR_RL)))) {
1253 if (velocity_receive_frame(vptr, rd_curr) < 0)
1254 stats->rx_dropped++;
1256 if (rd->rdesc0.RSR & RSR_CRC)
1257 stats->rx_crc_errors++;
1258 if (rd->rdesc0.RSR & RSR_FAE)
1259 stats->rx_frame_errors++;
1261 stats->rx_dropped++;
1266 vptr->dev->last_rx = jiffies;
1269 if (rd_curr >= vptr->options.numrx)
1271 } while (++works <= 15);
1273 vptr->rd_curr = rd_curr;
1275 if (works > 0 && velocity_rx_refill(vptr) < 0) {
1276 VELOCITY_PRT(MSG_LEVEL_ERR, KERN_ERR
1277 "%s: rx buf allocation failure\n", vptr->dev->name);
1285 * velocity_rx_csum - checksum process
1286 * @rd: receive packet descriptor
1287 * @skb: network layer packet buffer
1289 * Process the status bits for the received packet and determine
1290 * if the checksum was computed and verified by the hardware
1293 static inline void velocity_rx_csum(struct rx_desc *rd, struct sk_buff *skb)
1295 skb->ip_summed = CHECKSUM_NONE;
1297 if (rd->rdesc1.CSM & CSM_IPKT) {
1298 if (rd->rdesc1.CSM & CSM_IPOK) {
1299 if ((rd->rdesc1.CSM & CSM_TCPKT) ||
1300 (rd->rdesc1.CSM & CSM_UDPKT)) {
1301 if (!(rd->rdesc1.CSM & CSM_TUPOK)) {
1305 skb->ip_summed = CHECKSUM_UNNECESSARY;
1311 * velocity_rx_copy - in place Rx copy for small packets
1312 * @rx_skb: network layer packet buffer candidate
1313 * @pkt_size: received data size
1314 * @rd: receive packet descriptor
1315 * @dev: network device
1317 * Replace the current skb that is scheduled for Rx processing by a
1318 * shorter, immediatly allocated skb, if the received packet is small
1319 * enough. This function returns a negative value if the received
1320 * packet is too big or if memory is exhausted.
1322 static inline int velocity_rx_copy(struct sk_buff **rx_skb, int pkt_size,
1323 struct velocity_info *vptr)
1327 if (pkt_size < rx_copybreak) {
1328 struct sk_buff *new_skb;
1330 new_skb = dev_alloc_skb(pkt_size + 2);
1332 new_skb->dev = vptr->dev;
1333 new_skb->ip_summed = rx_skb[0]->ip_summed;
1335 if (vptr->flags & VELOCITY_FLAGS_IP_ALIGN)
1336 skb_reserve(new_skb, 2);
1338 memcpy(new_skb->data, rx_skb[0]->data, pkt_size);
1348 * velocity_iph_realign - IP header alignment
1349 * @vptr: velocity we are handling
1350 * @skb: network layer packet buffer
1351 * @pkt_size: received data size
1353 * Align IP header on a 2 bytes boundary. This behavior can be
1354 * configured by the user.
1356 static inline void velocity_iph_realign(struct velocity_info *vptr,
1357 struct sk_buff *skb, int pkt_size)
1359 /* FIXME - memmove ? */
1360 if (vptr->flags & VELOCITY_FLAGS_IP_ALIGN) {
1363 for (i = pkt_size; i >= 0; i--)
1364 *(skb->data + i + 2) = *(skb->data + i);
1365 skb_reserve(skb, 2);
1370 * velocity_receive_frame - received packet processor
1371 * @vptr: velocity we are handling
1374 * A packet has arrived. We process the packet and if appropriate
1375 * pass the frame up the network stack
1378 static int velocity_receive_frame(struct velocity_info *vptr, int idx)
1380 void (*pci_action)(struct pci_dev *, dma_addr_t, size_t, int);
1381 struct net_device_stats *stats = &vptr->stats;
1382 struct velocity_rd_info *rd_info = &(vptr->rd_info[idx]);
1383 struct rx_desc *rd = &(vptr->rd_ring[idx]);
1384 int pkt_len = rd->rdesc0.len;
1385 struct sk_buff *skb;
1387 if (rd->rdesc0.RSR & (RSR_STP | RSR_EDP)) {
1388 VELOCITY_PRT(MSG_LEVEL_VERBOSE, KERN_ERR " %s : the received frame span multple RDs.\n", vptr->dev->name);
1389 stats->rx_length_errors++;
1393 if (rd->rdesc0.RSR & RSR_MAR)
1394 vptr->stats.multicast++;
1397 skb->dev = vptr->dev;
1399 pci_dma_sync_single_for_cpu(vptr->pdev, rd_info->skb_dma,
1400 vptr->rx_buf_sz, PCI_DMA_FROMDEVICE);
1403 * Drop frame not meeting IEEE 802.3
1406 if (vptr->flags & VELOCITY_FLAGS_VAL_PKT_LEN) {
1407 if (rd->rdesc0.RSR & RSR_RL) {
1408 stats->rx_length_errors++;
1413 pci_action = pci_dma_sync_single_for_device;
1415 velocity_rx_csum(rd, skb);
1417 if (velocity_rx_copy(&skb, pkt_len, vptr) < 0) {
1418 velocity_iph_realign(vptr, skb, pkt_len);
1419 pci_action = pci_unmap_single;
1420 rd_info->skb = NULL;
1423 pci_action(vptr->pdev, rd_info->skb_dma, vptr->rx_buf_sz,
1424 PCI_DMA_FROMDEVICE);
1426 skb_put(skb, pkt_len - 4);
1427 skb->protocol = eth_type_trans(skb, skb->dev);
1429 stats->rx_bytes += pkt_len;
1436 * velocity_alloc_rx_buf - allocate aligned receive buffer
1440 * Allocate a new full sized buffer for the reception of a frame and
1441 * map it into PCI space for the hardware to use. The hardware
1442 * requires *64* byte alignment of the buffer which makes life
1443 * less fun than would be ideal.
1446 static int velocity_alloc_rx_buf(struct velocity_info *vptr, int idx)
1448 struct rx_desc *rd = &(vptr->rd_ring[idx]);
1449 struct velocity_rd_info *rd_info = &(vptr->rd_info[idx]);
1451 rd_info->skb = dev_alloc_skb(vptr->rx_buf_sz + 64);
1452 if (rd_info->skb == NULL)
1456 * Do the gymnastics to get the buffer head for data at
1459 skb_reserve(rd_info->skb, (unsigned long) rd_info->skb->data & 63);
1460 rd_info->skb->dev = vptr->dev;
1461 rd_info->skb_dma = pci_map_single(vptr->pdev, rd_info->skb->data, vptr->rx_buf_sz, PCI_DMA_FROMDEVICE);
1464 * Fill in the descriptor to match
1467 *((u32 *) & (rd->rdesc0)) = 0;
1468 rd->len = cpu_to_le32(vptr->rx_buf_sz);
1470 rd->pa_low = cpu_to_le32(rd_info->skb_dma);
1476 * tx_srv - transmit interrupt service
1480 * Scan the queues looking for transmitted packets that
1481 * we can complete and clean up. Update any statistics as
1485 static int velocity_tx_srv(struct velocity_info *vptr, u32 status)
1492 struct velocity_td_info *tdinfo;
1493 struct net_device_stats *stats = &vptr->stats;
1495 for (qnum = 0; qnum < vptr->num_txq; qnum++) {
1496 for (idx = vptr->td_tail[qnum]; vptr->td_used[qnum] > 0;
1497 idx = (idx + 1) % vptr->options.numtx) {
1502 td = &(vptr->td_rings[qnum][idx]);
1503 tdinfo = &(vptr->td_infos[qnum][idx]);
1505 if (td->tdesc0.owner == OWNED_BY_NIC)
1511 if (td->tdesc0.TSR & TSR0_TERR) {
1513 stats->tx_dropped++;
1514 if (td->tdesc0.TSR & TSR0_CDH)
1515 stats->tx_heartbeat_errors++;
1516 if (td->tdesc0.TSR & TSR0_CRS)
1517 stats->tx_carrier_errors++;
1518 if (td->tdesc0.TSR & TSR0_ABT)
1519 stats->tx_aborted_errors++;
1520 if (td->tdesc0.TSR & TSR0_OWC)
1521 stats->tx_window_errors++;
1523 stats->tx_packets++;
1524 stats->tx_bytes += tdinfo->skb->len;
1526 velocity_free_tx_buf(vptr, tdinfo);
1527 vptr->td_used[qnum]--;
1529 vptr->td_tail[qnum] = idx;
1531 if (AVAIL_TD(vptr, qnum) < 1) {
1536 * Look to see if we should kick the transmit network
1537 * layer for more work.
1539 if (netif_queue_stopped(vptr->dev) && (full == 0)
1540 && (!(vptr->mii_status & VELOCITY_LINK_FAIL))) {
1541 netif_wake_queue(vptr->dev);
1547 * velocity_print_link_status - link status reporting
1548 * @vptr: velocity to report on
1550 * Turn the link status of the velocity card into a kernel log
1551 * description of the new link state, detailing speed and duplex
1555 static void velocity_print_link_status(struct velocity_info *vptr)
1558 if (vptr->mii_status & VELOCITY_LINK_FAIL) {
1559 VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: failed to detect cable link\n", vptr->dev->name);
1560 } else if (vptr->options.spd_dpx == SPD_DPX_AUTO) {
1561 VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: Link autonegation", vptr->dev->name);
1563 if (vptr->mii_status & VELOCITY_SPEED_1000)
1564 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 1000M bps");
1565 else if (vptr->mii_status & VELOCITY_SPEED_100)
1566 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 100M bps");
1568 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 10M bps");
1570 if (vptr->mii_status & VELOCITY_DUPLEX_FULL)
1571 VELOCITY_PRT(MSG_LEVEL_INFO, " full duplex\n");
1573 VELOCITY_PRT(MSG_LEVEL_INFO, " half duplex\n");
1575 VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: Link forced", vptr->dev->name);
1576 switch (vptr->options.spd_dpx) {
1577 case SPD_DPX_100_HALF:
1578 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 100M bps half duplex\n");
1580 case SPD_DPX_100_FULL:
1581 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 100M bps full duplex\n");
1583 case SPD_DPX_10_HALF:
1584 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 10M bps half duplex\n");
1586 case SPD_DPX_10_FULL:
1587 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 10M bps full duplex\n");
1596 * velocity_error - handle error from controller
1598 * @status: card status
1600 * Process an error report from the hardware and attempt to recover
1601 * the card itself. At the moment we cannot recover from some
1602 * theoretically impossible errors but this could be fixed using
1603 * the pci_device_failed logic to bounce the hardware
1607 static void velocity_error(struct velocity_info *vptr, int status)
1610 if (status & ISR_TXSTLI) {
1611 struct mac_regs __iomem * regs = vptr->mac_regs;
1613 printk(KERN_ERR "TD structure errror TDindex=%hx\n", readw(®s->TDIdx[0]));
1614 BYTE_REG_BITS_ON(TXESR_TDSTR, ®s->TXESR);
1615 writew(TRDCSR_RUN, ®s->TDCSRClr);
1616 netif_stop_queue(vptr->dev);
1618 /* FIXME: port over the pci_device_failed code and use it
1622 if (status & ISR_SRCI) {
1623 struct mac_regs __iomem * regs = vptr->mac_regs;
1626 if (vptr->options.spd_dpx == SPD_DPX_AUTO) {
1627 vptr->mii_status = check_connection_type(regs);
1630 * If it is a 3119, disable frame bursting in
1631 * halfduplex mode and enable it in fullduplex
1634 if (vptr->rev_id < REV_ID_VT3216_A0) {
1635 if (vptr->mii_status | VELOCITY_DUPLEX_FULL)
1636 BYTE_REG_BITS_ON(TCR_TB2BDIS, ®s->TCR);
1638 BYTE_REG_BITS_OFF(TCR_TB2BDIS, ®s->TCR);
1641 * Only enable CD heart beat counter in 10HD mode
1643 if (!(vptr->mii_status & VELOCITY_DUPLEX_FULL) && (vptr->mii_status & VELOCITY_SPEED_10)) {
1644 BYTE_REG_BITS_OFF(TESTCFG_HBDIS, ®s->TESTCFG);
1646 BYTE_REG_BITS_ON(TESTCFG_HBDIS, ®s->TESTCFG);
1650 * Get link status from PHYSR0
1652 linked = readb(®s->PHYSR0) & PHYSR0_LINKGD;
1655 vptr->mii_status &= ~VELOCITY_LINK_FAIL;
1657 vptr->mii_status |= VELOCITY_LINK_FAIL;
1660 velocity_print_link_status(vptr);
1661 enable_flow_control_ability(vptr);
1664 * Re-enable auto-polling because SRCI will disable
1668 enable_mii_autopoll(regs);
1670 if (vptr->mii_status & VELOCITY_LINK_FAIL)
1671 netif_stop_queue(vptr->dev);
1673 netif_wake_queue(vptr->dev);
1676 if (status & ISR_MIBFI)
1677 velocity_update_hw_mibs(vptr);
1678 if (status & ISR_LSTEI)
1679 mac_rx_queue_wake(vptr->mac_regs);
1683 * velocity_free_tx_buf - free transmit buffer
1687 * Release an transmit buffer. If the buffer was preallocated then
1688 * recycle it, if not then unmap the buffer.
1691 static void velocity_free_tx_buf(struct velocity_info *vptr, struct velocity_td_info *tdinfo)
1693 struct sk_buff *skb = tdinfo->skb;
1697 * Don't unmap the pre-allocated tx_bufs
1699 if (tdinfo->skb_dma && (tdinfo->skb_dma[0] != tdinfo->buf_dma)) {
1701 for (i = 0; i < tdinfo->nskb_dma; i++) {
1702 #ifdef VELOCITY_ZERO_COPY_SUPPORT
1703 pci_unmap_single(vptr->pdev, tdinfo->skb_dma[i], td->tdesc1.len, PCI_DMA_TODEVICE);
1705 pci_unmap_single(vptr->pdev, tdinfo->skb_dma[i], skb->len, PCI_DMA_TODEVICE);
1707 tdinfo->skb_dma[i] = 0;
1710 dev_kfree_skb_irq(skb);
1715 * velocity_open - interface activation callback
1716 * @dev: network layer device to open
1718 * Called when the network layer brings the interface up. Returns
1719 * a negative posix error code on failure, or zero on success.
1721 * All the ring allocation and set up is done on open for this
1722 * adapter to minimise memory usage when inactive
1725 static int velocity_open(struct net_device *dev)
1727 struct velocity_info *vptr = dev->priv;
1730 vptr->rx_buf_sz = (dev->mtu <= 1504 ? PKT_BUF_SZ : dev->mtu + 32);
1732 ret = velocity_init_rings(vptr);
1736 ret = velocity_init_rd_ring(vptr);
1738 goto err_free_desc_rings;
1740 ret = velocity_init_td_ring(vptr);
1742 goto err_free_rd_ring;
1744 /* Ensure chip is running */
1745 pci_set_power_state(vptr->pdev, PCI_D0);
1747 velocity_init_registers(vptr, VELOCITY_INIT_COLD);
1749 ret = request_irq(vptr->pdev->irq, &velocity_intr, SA_SHIRQ,
1752 /* Power down the chip */
1753 pci_set_power_state(vptr->pdev, PCI_D3hot);
1754 goto err_free_td_ring;
1757 mac_enable_int(vptr->mac_regs);
1758 netif_start_queue(dev);
1759 vptr->flags |= VELOCITY_FLAGS_OPENED;
1764 velocity_free_td_ring(vptr);
1766 velocity_free_rd_ring(vptr);
1767 err_free_desc_rings:
1768 velocity_free_rings(vptr);
1773 * velocity_change_mtu - MTU change callback
1774 * @dev: network device
1775 * @new_mtu: desired MTU
1777 * Handle requests from the networking layer for MTU change on
1778 * this interface. It gets called on a change by the network layer.
1779 * Return zero for success or negative posix error code.
1782 static int velocity_change_mtu(struct net_device *dev, int new_mtu)
1784 struct velocity_info *vptr = dev->priv;
1785 unsigned long flags;
1786 int oldmtu = dev->mtu;
1789 if ((new_mtu < VELOCITY_MIN_MTU) || new_mtu > (VELOCITY_MAX_MTU)) {
1790 VELOCITY_PRT(MSG_LEVEL_ERR, KERN_NOTICE "%s: Invalid MTU.\n",
1795 if (new_mtu != oldmtu) {
1796 spin_lock_irqsave(&vptr->lock, flags);
1798 netif_stop_queue(dev);
1799 velocity_shutdown(vptr);
1801 velocity_free_td_ring(vptr);
1802 velocity_free_rd_ring(vptr);
1806 vptr->rx_buf_sz = 9 * 1024;
1807 else if (new_mtu > 4096)
1808 vptr->rx_buf_sz = 8192;
1810 vptr->rx_buf_sz = 4 * 1024;
1812 ret = velocity_init_rd_ring(vptr);
1816 ret = velocity_init_td_ring(vptr);
1820 velocity_init_registers(vptr, VELOCITY_INIT_COLD);
1822 mac_enable_int(vptr->mac_regs);
1823 netif_start_queue(dev);
1825 spin_unlock_irqrestore(&vptr->lock, flags);
1832 * velocity_shutdown - shut down the chip
1833 * @vptr: velocity to deactivate
1835 * Shuts down the internal operations of the velocity and
1836 * disables interrupts, autopolling, transmit and receive
1839 static void velocity_shutdown(struct velocity_info *vptr)
1841 struct mac_regs __iomem * regs = vptr->mac_regs;
1842 mac_disable_int(regs);
1843 writel(CR0_STOP, ®s->CR0Set);
1844 writew(0xFFFF, ®s->TDCSRClr);
1845 writeb(0xFF, ®s->RDCSRClr);
1846 safe_disable_mii_autopoll(regs);
1847 mac_clear_isr(regs);
1851 * velocity_close - close adapter callback
1852 * @dev: network device
1854 * Callback from the network layer when the velocity is being
1855 * deactivated by the network layer
1858 static int velocity_close(struct net_device *dev)
1860 struct velocity_info *vptr = dev->priv;
1862 netif_stop_queue(dev);
1863 velocity_shutdown(vptr);
1865 if (vptr->flags & VELOCITY_FLAGS_WOL_ENABLED)
1866 velocity_get_ip(vptr);
1868 free_irq(dev->irq, dev);
1870 /* Power down the chip */
1871 pci_set_power_state(vptr->pdev, PCI_D3hot);
1873 /* Free the resources */
1874 velocity_free_td_ring(vptr);
1875 velocity_free_rd_ring(vptr);
1876 velocity_free_rings(vptr);
1878 vptr->flags &= (~VELOCITY_FLAGS_OPENED);
1883 * velocity_xmit - transmit packet callback
1884 * @skb: buffer to transmit
1885 * @dev: network device
1887 * Called by the networ layer to request a packet is queued to
1888 * the velocity. Returns zero on success.
1891 static int velocity_xmit(struct sk_buff *skb, struct net_device *dev)
1893 struct velocity_info *vptr = dev->priv;
1895 struct tx_desc *td_ptr;
1896 struct velocity_td_info *tdinfo;
1897 unsigned long flags;
1900 int pktlen = skb->len;
1902 spin_lock_irqsave(&vptr->lock, flags);
1904 index = vptr->td_curr[qnum];
1905 td_ptr = &(vptr->td_rings[qnum][index]);
1906 tdinfo = &(vptr->td_infos[qnum][index]);
1908 td_ptr->tdesc1.TCPLS = TCPLS_NORMAL;
1909 td_ptr->tdesc1.TCR = TCR0_TIC;
1910 td_ptr->td_buf[0].queue = 0;
1915 if (pktlen < ETH_ZLEN) {
1916 /* Cannot occur until ZC support */
1917 if(skb_linearize(skb, GFP_ATOMIC))
1920 memcpy(tdinfo->buf, skb->data, skb->len);
1921 memset(tdinfo->buf + skb->len, 0, ETH_ZLEN - skb->len);
1923 tdinfo->skb_dma[0] = tdinfo->buf_dma;
1924 td_ptr->tdesc0.pktsize = pktlen;
1925 td_ptr->td_buf[0].pa_low = cpu_to_le32(tdinfo->skb_dma[0]);
1926 td_ptr->td_buf[0].pa_high = 0;
1927 td_ptr->td_buf[0].bufsize = td_ptr->tdesc0.pktsize;
1928 tdinfo->nskb_dma = 1;
1929 td_ptr->tdesc1.CMDZ = 2;
1931 #ifdef VELOCITY_ZERO_COPY_SUPPORT
1932 if (skb_shinfo(skb)->nr_frags > 0) {
1933 int nfrags = skb_shinfo(skb)->nr_frags;
1936 skb_linearize(skb, GFP_ATOMIC);
1937 memcpy(tdinfo->buf, skb->data, skb->len);
1938 tdinfo->skb_dma[0] = tdinfo->buf_dma;
1939 td_ptr->tdesc0.pktsize =
1940 td_ptr->td_buf[0].pa_low = cpu_to_le32(tdinfo->skb_dma[0]);
1941 td_ptr->td_buf[0].pa_high = 0;
1942 td_ptr->td_buf[0].bufsize = td_ptr->tdesc0.pktsize;
1943 tdinfo->nskb_dma = 1;
1944 td_ptr->tdesc1.CMDZ = 2;
1947 tdinfo->nskb_dma = 0;
1948 tdinfo->skb_dma[i] = pci_map_single(vptr->pdev, skb->data, skb->len - skb->data_len, PCI_DMA_TODEVICE);
1950 td_ptr->tdesc0.pktsize = pktlen;
1952 /* FIXME: support 48bit DMA later */
1953 td_ptr->td_buf[i].pa_low = cpu_to_le32(tdinfo->skb_dma);
1954 td_ptr->td_buf[i].pa_high = 0;
1955 td_ptr->td_buf[i].bufsize = skb->len->skb->data_len;
1957 for (i = 0; i < nfrags; i++) {
1958 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
1959 void *addr = ((void *) page_address(frag->page + frag->page_offset));
1961 tdinfo->skb_dma[i + 1] = pci_map_single(vptr->pdev, addr, frag->size, PCI_DMA_TODEVICE);
1963 td_ptr->td_buf[i + 1].pa_low = cpu_to_le32(tdinfo->skb_dma[i + 1]);
1964 td_ptr->td_buf[i + 1].pa_high = 0;
1965 td_ptr->td_buf[i + 1].bufsize = frag->size;
1967 tdinfo->nskb_dma = i - 1;
1968 td_ptr->tdesc1.CMDZ = i;
1975 * Map the linear network buffer into PCI space and
1976 * add it to the transmit ring.
1979 tdinfo->skb_dma[0] = pci_map_single(vptr->pdev, skb->data, pktlen, PCI_DMA_TODEVICE);
1980 td_ptr->tdesc0.pktsize = pktlen;
1981 td_ptr->td_buf[0].pa_low = cpu_to_le32(tdinfo->skb_dma[0]);
1982 td_ptr->td_buf[0].pa_high = 0;
1983 td_ptr->td_buf[0].bufsize = td_ptr->tdesc0.pktsize;
1984 tdinfo->nskb_dma = 1;
1985 td_ptr->tdesc1.CMDZ = 2;
1988 if (vptr->flags & VELOCITY_FLAGS_TAGGING) {
1989 td_ptr->tdesc1.pqinf.VID = (vptr->options.vid & 0xfff);
1990 td_ptr->tdesc1.pqinf.priority = 0;
1991 td_ptr->tdesc1.pqinf.CFI = 0;
1992 td_ptr->tdesc1.TCR |= TCR0_VETAG;
1996 * Handle hardware checksum
1998 if ((vptr->flags & VELOCITY_FLAGS_TX_CSUM)
1999 && (skb->ip_summed == CHECKSUM_HW)) {
2000 struct iphdr *ip = skb->nh.iph;
2001 if (ip->protocol == IPPROTO_TCP)
2002 td_ptr->tdesc1.TCR |= TCR0_TCPCK;
2003 else if (ip->protocol == IPPROTO_UDP)
2004 td_ptr->tdesc1.TCR |= (TCR0_UDPCK);
2005 td_ptr->tdesc1.TCR |= TCR0_IPCK;
2009 int prev = index - 1;
2012 prev = vptr->options.numtx - 1;
2013 td_ptr->tdesc0.owner = OWNED_BY_NIC;
2014 vptr->td_used[qnum]++;
2015 vptr->td_curr[qnum] = (index + 1) % vptr->options.numtx;
2017 if (AVAIL_TD(vptr, qnum) < 1)
2018 netif_stop_queue(dev);
2020 td_ptr = &(vptr->td_rings[qnum][prev]);
2021 td_ptr->td_buf[0].queue = 1;
2022 mac_tx_queue_wake(vptr->mac_regs, qnum);
2024 dev->trans_start = jiffies;
2025 spin_unlock_irqrestore(&vptr->lock, flags);
2030 * velocity_intr - interrupt callback
2031 * @irq: interrupt number
2032 * @dev_instance: interrupting device
2033 * @pt_regs: CPU register state at interrupt
2035 * Called whenever an interrupt is generated by the velocity
2036 * adapter IRQ line. We may not be the source of the interrupt
2037 * and need to identify initially if we are, and if not exit as
2038 * efficiently as possible.
2041 static int velocity_intr(int irq, void *dev_instance, struct pt_regs *regs)
2043 struct net_device *dev = dev_instance;
2044 struct velocity_info *vptr = dev->priv;
2049 spin_lock(&vptr->lock);
2050 isr_status = mac_read_isr(vptr->mac_regs);
2053 if (isr_status == 0) {
2054 spin_unlock(&vptr->lock);
2058 mac_disable_int(vptr->mac_regs);
2061 * Keep processing the ISR until we have completed
2062 * processing and the isr_status becomes zero
2065 while (isr_status != 0) {
2066 mac_write_isr(vptr->mac_regs, isr_status);
2067 if (isr_status & (~(ISR_PRXI | ISR_PPRXI | ISR_PTXI | ISR_PPTXI)))
2068 velocity_error(vptr, isr_status);
2069 if (isr_status & (ISR_PRXI | ISR_PPRXI))
2070 max_count += velocity_rx_srv(vptr, isr_status);
2071 if (isr_status & (ISR_PTXI | ISR_PPTXI))
2072 max_count += velocity_tx_srv(vptr, isr_status);
2073 isr_status = mac_read_isr(vptr->mac_regs);
2074 if (max_count > vptr->options.int_works)
2076 printk(KERN_WARNING "%s: excessive work at interrupt.\n",
2081 spin_unlock(&vptr->lock);
2082 mac_enable_int(vptr->mac_regs);
2089 * velocity_set_multi - filter list change callback
2090 * @dev: network device
2092 * Called by the network layer when the filter lists need to change
2093 * for a velocity adapter. Reload the CAMs with the new address
2097 static void velocity_set_multi(struct net_device *dev)
2099 struct velocity_info *vptr = dev->priv;
2100 struct mac_regs __iomem * regs = vptr->mac_regs;
2103 struct dev_mc_list *mclist;
2105 if (dev->flags & IFF_PROMISC) { /* Set promiscuous. */
2106 /* Unconditionally log net taps. */
2107 printk(KERN_NOTICE "%s: Promiscuous mode enabled.\n", dev->name);
2108 writel(0xffffffff, ®s->MARCAM[0]);
2109 writel(0xffffffff, ®s->MARCAM[4]);
2110 rx_mode = (RCR_AM | RCR_AB | RCR_PROM);
2111 } else if ((dev->mc_count > vptr->multicast_limit)
2112 || (dev->flags & IFF_ALLMULTI)) {
2113 writel(0xffffffff, ®s->MARCAM[0]);
2114 writel(0xffffffff, ®s->MARCAM[4]);
2115 rx_mode = (RCR_AM | RCR_AB);
2117 int offset = MCAM_SIZE - vptr->multicast_limit;
2118 mac_get_cam_mask(regs, vptr->mCAMmask, VELOCITY_MULTICAST_CAM);
2120 for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count; i++, mclist = mclist->next) {
2121 mac_set_cam(regs, i + offset, mclist->dmi_addr, VELOCITY_MULTICAST_CAM);
2122 vptr->mCAMmask[(offset + i) / 8] |= 1 << ((offset + i) & 7);
2125 mac_set_cam_mask(regs, vptr->mCAMmask, VELOCITY_MULTICAST_CAM);
2126 rx_mode = (RCR_AM | RCR_AB);
2128 if (dev->mtu > 1500)
2131 BYTE_REG_BITS_ON(rx_mode, ®s->RCR);
2136 * velocity_get_status - statistics callback
2137 * @dev: network device
2139 * Callback from the network layer to allow driver statistics
2140 * to be resynchronized with hardware collected state. In the
2141 * case of the velocity we need to pull the MIB counters from
2142 * the hardware into the counters before letting the network
2143 * layer display them.
2146 static struct net_device_stats *velocity_get_stats(struct net_device *dev)
2148 struct velocity_info *vptr = dev->priv;
2150 /* If the hardware is down, don't touch MII */
2151 if(!netif_running(dev))
2152 return &vptr->stats;
2154 spin_lock_irq(&vptr->lock);
2155 velocity_update_hw_mibs(vptr);
2156 spin_unlock_irq(&vptr->lock);
2158 vptr->stats.rx_packets = vptr->mib_counter[HW_MIB_ifRxAllPkts];
2159 vptr->stats.rx_errors = vptr->mib_counter[HW_MIB_ifRxErrorPkts];
2160 vptr->stats.rx_length_errors = vptr->mib_counter[HW_MIB_ifInRangeLengthErrors];
2162 // unsigned long rx_dropped; /* no space in linux buffers */
2163 vptr->stats.collisions = vptr->mib_counter[HW_MIB_ifTxEtherCollisions];
2164 /* detailed rx_errors: */
2165 // unsigned long rx_length_errors;
2166 // unsigned long rx_over_errors; /* receiver ring buff overflow */
2167 vptr->stats.rx_crc_errors = vptr->mib_counter[HW_MIB_ifRxPktCRCE];
2168 // unsigned long rx_frame_errors; /* recv'd frame alignment error */
2169 // unsigned long rx_fifo_errors; /* recv'r fifo overrun */
2170 // unsigned long rx_missed_errors; /* receiver missed packet */
2172 /* detailed tx_errors */
2173 // unsigned long tx_fifo_errors;
2175 return &vptr->stats;
2180 * velocity_ioctl - ioctl entry point
2181 * @dev: network device
2182 * @rq: interface request ioctl
2183 * @cmd: command code
2185 * Called when the user issues an ioctl request to the network
2186 * device in question. The velocity interface supports MII.
2189 static int velocity_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
2191 struct velocity_info *vptr = dev->priv;
2194 /* If we are asked for information and the device is power
2195 saving then we need to bring the device back up to talk to it */
2197 if (!netif_running(dev))
2198 pci_set_power_state(vptr->pdev, PCI_D0);
2201 case SIOCGMIIPHY: /* Get address of MII PHY in use. */
2202 case SIOCGMIIREG: /* Read MII PHY register. */
2203 case SIOCSMIIREG: /* Write to MII PHY register. */
2204 ret = velocity_mii_ioctl(dev, rq, cmd);
2210 if (!netif_running(dev))
2211 pci_set_power_state(vptr->pdev, PCI_D3hot);
2218 * Definition for our device driver. The PCI layer interface
2219 * uses this to handle all our card discover and plugging
2222 static struct pci_driver velocity_driver = {
2223 .name = VELOCITY_NAME,
2224 .id_table = velocity_id_table,
2225 .probe = velocity_found1,
2226 .remove = __devexit_p(velocity_remove1),
2228 .suspend = velocity_suspend,
2229 .resume = velocity_resume,
2234 * velocity_init_module - load time function
2236 * Called when the velocity module is loaded. The PCI driver
2237 * is registered with the PCI layer, and in turn will call
2238 * the probe functions for each velocity adapter installed
2242 static int __init velocity_init_module(void)
2246 velocity_register_notifier();
2247 ret = pci_module_init(&velocity_driver);
2249 velocity_unregister_notifier();
2254 * velocity_cleanup - module unload
2256 * When the velocity hardware is unloaded this function is called.
2257 * It will clean up the notifiers and the unregister the PCI
2258 * driver interface for this hardware. This in turn cleans up
2259 * all discovered interfaces before returning from the function
2262 static void __exit velocity_cleanup_module(void)
2264 velocity_unregister_notifier();
2265 pci_unregister_driver(&velocity_driver);
2268 module_init(velocity_init_module);
2269 module_exit(velocity_cleanup_module);
2273 * MII access , media link mode setting functions
2278 * mii_init - set up MII
2279 * @vptr: velocity adapter
2280 * @mii_status: links tatus
2282 * Set up the PHY for the current link state.
2285 static void mii_init(struct velocity_info *vptr, u32 mii_status)
2289 switch (PHYID_GET_PHY_ID(vptr->phy_id)) {
2290 case PHYID_CICADA_CS8201:
2292 * Reset to hardware default
2294 MII_REG_BITS_OFF((ANAR_ASMDIR | ANAR_PAUSE), MII_REG_ANAR, vptr->mac_regs);
2296 * Turn on ECHODIS bit in NWay-forced full mode and turn it
2297 * off it in NWay-forced half mode for NWay-forced v.s.
2298 * legacy-forced issue.
2300 if (vptr->mii_status & VELOCITY_DUPLEX_FULL)
2301 MII_REG_BITS_ON(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs);
2303 MII_REG_BITS_OFF(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs);
2305 * Turn on Link/Activity LED enable bit for CIS8201
2307 MII_REG_BITS_ON(PLED_LALBE, MII_REG_PLED, vptr->mac_regs);
2309 case PHYID_VT3216_32BIT:
2310 case PHYID_VT3216_64BIT:
2312 * Reset to hardware default
2314 MII_REG_BITS_ON((ANAR_ASMDIR | ANAR_PAUSE), MII_REG_ANAR, vptr->mac_regs);
2316 * Turn on ECHODIS bit in NWay-forced full mode and turn it
2317 * off it in NWay-forced half mode for NWay-forced v.s.
2318 * legacy-forced issue
2320 if (vptr->mii_status & VELOCITY_DUPLEX_FULL)
2321 MII_REG_BITS_ON(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs);
2323 MII_REG_BITS_OFF(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs);
2326 case PHYID_MARVELL_1000:
2327 case PHYID_MARVELL_1000S:
2329 * Assert CRS on Transmit
2331 MII_REG_BITS_ON(PSCR_ACRSTX, MII_REG_PSCR, vptr->mac_regs);
2333 * Reset to hardware default
2335 MII_REG_BITS_ON((ANAR_ASMDIR | ANAR_PAUSE), MII_REG_ANAR, vptr->mac_regs);
2340 velocity_mii_read(vptr->mac_regs, MII_REG_BMCR, &BMCR);
2341 if (BMCR & BMCR_ISO) {
2343 velocity_mii_write(vptr->mac_regs, MII_REG_BMCR, BMCR);
2348 * safe_disable_mii_autopoll - autopoll off
2349 * @regs: velocity registers
2351 * Turn off the autopoll and wait for it to disable on the chip
2354 static void safe_disable_mii_autopoll(struct mac_regs __iomem * regs)
2358 /* turn off MAUTO */
2359 writeb(0, ®s->MIICR);
2360 for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
2362 if (BYTE_REG_BITS_IS_ON(MIISR_MIDLE, ®s->MIISR))
2368 * enable_mii_autopoll - turn on autopolling
2369 * @regs: velocity registers
2371 * Enable the MII link status autopoll feature on the Velocity
2372 * hardware. Wait for it to enable.
2375 static void enable_mii_autopoll(struct mac_regs __iomem * regs)
2379 writeb(0, &(regs->MIICR));
2380 writeb(MIIADR_SWMPL, ®s->MIIADR);
2382 for (ii = 0; ii < W_MAX_TIMEOUT; ii++) {
2384 if (BYTE_REG_BITS_IS_ON(MIISR_MIDLE, ®s->MIISR))
2388 writeb(MIICR_MAUTO, ®s->MIICR);
2390 for (ii = 0; ii < W_MAX_TIMEOUT; ii++) {
2392 if (!BYTE_REG_BITS_IS_ON(MIISR_MIDLE, ®s->MIISR))
2399 * velocity_mii_read - read MII data
2400 * @regs: velocity registers
2401 * @index: MII register index
2402 * @data: buffer for received data
2404 * Perform a single read of an MII 16bit register. Returns zero
2405 * on success or -ETIMEDOUT if the PHY did not respond.
2408 static int velocity_mii_read(struct mac_regs __iomem *regs, u8 index, u16 *data)
2413 * Disable MIICR_MAUTO, so that mii addr can be set normally
2415 safe_disable_mii_autopoll(regs);
2417 writeb(index, ®s->MIIADR);
2419 BYTE_REG_BITS_ON(MIICR_RCMD, ®s->MIICR);
2421 for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
2422 if (!(readb(®s->MIICR) & MIICR_RCMD))
2426 *data = readw(®s->MIIDATA);
2428 enable_mii_autopoll(regs);
2429 if (ww == W_MAX_TIMEOUT)
2435 * velocity_mii_write - write MII data
2436 * @regs: velocity registers
2437 * @index: MII register index
2438 * @data: 16bit data for the MII register
2440 * Perform a single write to an MII 16bit register. Returns zero
2441 * on success or -ETIMEDOUT if the PHY did not respond.
2444 static int velocity_mii_write(struct mac_regs __iomem *regs, u8 mii_addr, u16 data)
2449 * Disable MIICR_MAUTO, so that mii addr can be set normally
2451 safe_disable_mii_autopoll(regs);
2453 /* MII reg offset */
2454 writeb(mii_addr, ®s->MIIADR);
2456 writew(data, ®s->MIIDATA);
2458 /* turn on MIICR_WCMD */
2459 BYTE_REG_BITS_ON(MIICR_WCMD, ®s->MIICR);
2461 /* W_MAX_TIMEOUT is the timeout period */
2462 for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
2464 if (!(readb(®s->MIICR) & MIICR_WCMD))
2467 enable_mii_autopoll(regs);
2469 if (ww == W_MAX_TIMEOUT)
2475 * velocity_get_opt_media_mode - get media selection
2476 * @vptr: velocity adapter
2478 * Get the media mode stored in EEPROM or module options and load
2479 * mii_status accordingly. The requested link state information
2483 static u32 velocity_get_opt_media_mode(struct velocity_info *vptr)
2487 switch (vptr->options.spd_dpx) {
2489 status = VELOCITY_AUTONEG_ENABLE;
2491 case SPD_DPX_100_FULL:
2492 status = VELOCITY_SPEED_100 | VELOCITY_DUPLEX_FULL;
2494 case SPD_DPX_10_FULL:
2495 status = VELOCITY_SPEED_10 | VELOCITY_DUPLEX_FULL;
2497 case SPD_DPX_100_HALF:
2498 status = VELOCITY_SPEED_100;
2500 case SPD_DPX_10_HALF:
2501 status = VELOCITY_SPEED_10;
2504 vptr->mii_status = status;
2509 * mii_set_auto_on - autonegotiate on
2512 * Enable autonegotation on this interface
2515 static void mii_set_auto_on(struct velocity_info *vptr)
2517 if (MII_REG_BITS_IS_ON(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs))
2518 MII_REG_BITS_ON(BMCR_REAUTO, MII_REG_BMCR, vptr->mac_regs);
2520 MII_REG_BITS_ON(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs);
2525 static void mii_set_auto_off(struct velocity_info * vptr)
2527 MII_REG_BITS_OFF(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs);
2532 * set_mii_flow_control - flow control setup
2533 * @vptr: velocity interface
2535 * Set up the flow control on this interface according to
2536 * the supplied user/eeprom options.
2539 static void set_mii_flow_control(struct velocity_info *vptr)
2541 /*Enable or Disable PAUSE in ANAR */
2542 switch (vptr->options.flow_cntl) {
2544 MII_REG_BITS_OFF(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs);
2545 MII_REG_BITS_ON(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs);
2549 MII_REG_BITS_ON(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs);
2550 MII_REG_BITS_ON(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs);
2553 case FLOW_CNTL_TX_RX:
2554 MII_REG_BITS_ON(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs);
2555 MII_REG_BITS_ON(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs);
2558 case FLOW_CNTL_DISABLE:
2559 MII_REG_BITS_OFF(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs);
2560 MII_REG_BITS_OFF(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs);
2568 * velocity_set_media_mode - set media mode
2569 * @mii_status: old MII link state
2571 * Check the media link state and configure the flow control
2572 * PHY and also velocity hardware setup accordingly. In particular
2573 * we need to set up CD polling and frame bursting.
2576 static int velocity_set_media_mode(struct velocity_info *vptr, u32 mii_status)
2579 struct mac_regs __iomem * regs = vptr->mac_regs;
2581 vptr->mii_status = mii_check_media_mode(vptr->mac_regs);
2582 curr_status = vptr->mii_status & (~VELOCITY_LINK_FAIL);
2584 /* Set mii link status */
2585 set_mii_flow_control(vptr);
2588 Check if new status is consisent with current status
2589 if (((mii_status & curr_status) & VELOCITY_AUTONEG_ENABLE)
2590 || (mii_status==curr_status)) {
2591 vptr->mii_status=mii_check_media_mode(vptr->mac_regs);
2592 vptr->mii_status=check_connection_type(vptr->mac_regs);
2593 VELOCITY_PRT(MSG_LEVEL_INFO, "Velocity link no change\n");
2598 if (PHYID_GET_PHY_ID(vptr->phy_id) == PHYID_CICADA_CS8201) {
2599 MII_REG_BITS_ON(AUXCR_MDPPS, MII_REG_AUXCR, vptr->mac_regs);
2603 * If connection type is AUTO
2605 if (mii_status & VELOCITY_AUTONEG_ENABLE) {
2606 VELOCITY_PRT(MSG_LEVEL_INFO, "Velocity is AUTO mode\n");
2607 /* clear force MAC mode bit */
2608 BYTE_REG_BITS_OFF(CHIPGCR_FCMODE, ®s->CHIPGCR);
2609 /* set duplex mode of MAC according to duplex mode of MII */
2610 MII_REG_BITS_ON(ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10, MII_REG_ANAR, vptr->mac_regs);
2611 MII_REG_BITS_ON(G1000CR_1000FD | G1000CR_1000, MII_REG_G1000CR, vptr->mac_regs);
2612 MII_REG_BITS_ON(BMCR_SPEED1G, MII_REG_BMCR, vptr->mac_regs);
2614 /* enable AUTO-NEGO mode */
2615 mii_set_auto_on(vptr);
2621 * 1. if it's 3119, disable frame bursting in halfduplex mode
2622 * and enable it in fullduplex mode
2623 * 2. set correct MII/GMII and half/full duplex mode in CHIPGCR
2624 * 3. only enable CD heart beat counter in 10HD mode
2627 /* set force MAC mode bit */
2628 BYTE_REG_BITS_ON(CHIPGCR_FCMODE, ®s->CHIPGCR);
2630 CHIPGCR = readb(®s->CHIPGCR);
2631 CHIPGCR &= ~CHIPGCR_FCGMII;
2633 if (mii_status & VELOCITY_DUPLEX_FULL) {
2634 CHIPGCR |= CHIPGCR_FCFDX;
2635 writeb(CHIPGCR, ®s->CHIPGCR);
2636 VELOCITY_PRT(MSG_LEVEL_INFO, "set Velocity to forced full mode\n");
2637 if (vptr->rev_id < REV_ID_VT3216_A0)
2638 BYTE_REG_BITS_OFF(TCR_TB2BDIS, ®s->TCR);
2640 CHIPGCR &= ~CHIPGCR_FCFDX;
2641 VELOCITY_PRT(MSG_LEVEL_INFO, "set Velocity to forced half mode\n");
2642 writeb(CHIPGCR, ®s->CHIPGCR);
2643 if (vptr->rev_id < REV_ID_VT3216_A0)
2644 BYTE_REG_BITS_ON(TCR_TB2BDIS, ®s->TCR);
2647 MII_REG_BITS_OFF(G1000CR_1000FD | G1000CR_1000, MII_REG_G1000CR, vptr->mac_regs);
2649 if (!(mii_status & VELOCITY_DUPLEX_FULL) && (mii_status & VELOCITY_SPEED_10)) {
2650 BYTE_REG_BITS_OFF(TESTCFG_HBDIS, ®s->TESTCFG);
2652 BYTE_REG_BITS_ON(TESTCFG_HBDIS, ®s->TESTCFG);
2654 /* MII_REG_BITS_OFF(BMCR_SPEED1G, MII_REG_BMCR, vptr->mac_regs); */
2655 velocity_mii_read(vptr->mac_regs, MII_REG_ANAR, &ANAR);
2656 ANAR &= (~(ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10));
2657 if (mii_status & VELOCITY_SPEED_100) {
2658 if (mii_status & VELOCITY_DUPLEX_FULL)
2663 if (mii_status & VELOCITY_DUPLEX_FULL)
2668 velocity_mii_write(vptr->mac_regs, MII_REG_ANAR, ANAR);
2669 /* enable AUTO-NEGO mode */
2670 mii_set_auto_on(vptr);
2671 /* MII_REG_BITS_ON(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs); */
2673 /* vptr->mii_status=mii_check_media_mode(vptr->mac_regs); */
2674 /* vptr->mii_status=check_connection_type(vptr->mac_regs); */
2675 return VELOCITY_LINK_CHANGE;
2679 * mii_check_media_mode - check media state
2680 * @regs: velocity registers
2682 * Check the current MII status and determine the link status
2686 static u32 mii_check_media_mode(struct mac_regs __iomem * regs)
2691 if (!MII_REG_BITS_IS_ON(BMSR_LNK, MII_REG_BMSR, regs))
2692 status |= VELOCITY_LINK_FAIL;
2694 if (MII_REG_BITS_IS_ON(G1000CR_1000FD, MII_REG_G1000CR, regs))
2695 status |= VELOCITY_SPEED_1000 | VELOCITY_DUPLEX_FULL;
2696 else if (MII_REG_BITS_IS_ON(G1000CR_1000, MII_REG_G1000CR, regs))
2697 status |= (VELOCITY_SPEED_1000);
2699 velocity_mii_read(regs, MII_REG_ANAR, &ANAR);
2700 if (ANAR & ANAR_TXFD)
2701 status |= (VELOCITY_SPEED_100 | VELOCITY_DUPLEX_FULL);
2702 else if (ANAR & ANAR_TX)
2703 status |= VELOCITY_SPEED_100;
2704 else if (ANAR & ANAR_10FD)
2705 status |= (VELOCITY_SPEED_10 | VELOCITY_DUPLEX_FULL);
2707 status |= (VELOCITY_SPEED_10);
2710 if (MII_REG_BITS_IS_ON(BMCR_AUTO, MII_REG_BMCR, regs)) {
2711 velocity_mii_read(regs, MII_REG_ANAR, &ANAR);
2712 if ((ANAR & (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10))
2713 == (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10)) {
2714 if (MII_REG_BITS_IS_ON(G1000CR_1000 | G1000CR_1000FD, MII_REG_G1000CR, regs))
2715 status |= VELOCITY_AUTONEG_ENABLE;
2722 static u32 check_connection_type(struct mac_regs __iomem * regs)
2727 PHYSR0 = readb(®s->PHYSR0);
2730 if (!(PHYSR0 & PHYSR0_LINKGD))
2731 status|=VELOCITY_LINK_FAIL;
2734 if (PHYSR0 & PHYSR0_FDPX)
2735 status |= VELOCITY_DUPLEX_FULL;
2737 if (PHYSR0 & PHYSR0_SPDG)
2738 status |= VELOCITY_SPEED_1000;
2739 if (PHYSR0 & PHYSR0_SPD10)
2740 status |= VELOCITY_SPEED_10;
2742 status |= VELOCITY_SPEED_100;
2744 if (MII_REG_BITS_IS_ON(BMCR_AUTO, MII_REG_BMCR, regs)) {
2745 velocity_mii_read(regs, MII_REG_ANAR, &ANAR);
2746 if ((ANAR & (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10))
2747 == (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10)) {
2748 if (MII_REG_BITS_IS_ON(G1000CR_1000 | G1000CR_1000FD, MII_REG_G1000CR, regs))
2749 status |= VELOCITY_AUTONEG_ENABLE;
2757 * enable_flow_control_ability - flow control
2758 * @vptr: veloity to configure
2760 * Set up flow control according to the flow control options
2761 * determined by the eeprom/configuration.
2764 static void enable_flow_control_ability(struct velocity_info *vptr)
2767 struct mac_regs __iomem * regs = vptr->mac_regs;
2769 switch (vptr->options.flow_cntl) {
2771 case FLOW_CNTL_DEFAULT:
2772 if (BYTE_REG_BITS_IS_ON(PHYSR0_RXFLC, ®s->PHYSR0))
2773 writel(CR0_FDXRFCEN, ®s->CR0Set);
2775 writel(CR0_FDXRFCEN, ®s->CR0Clr);
2777 if (BYTE_REG_BITS_IS_ON(PHYSR0_TXFLC, ®s->PHYSR0))
2778 writel(CR0_FDXTFCEN, ®s->CR0Set);
2780 writel(CR0_FDXTFCEN, ®s->CR0Clr);
2784 writel(CR0_FDXTFCEN, ®s->CR0Set);
2785 writel(CR0_FDXRFCEN, ®s->CR0Clr);
2789 writel(CR0_FDXRFCEN, ®s->CR0Set);
2790 writel(CR0_FDXTFCEN, ®s->CR0Clr);
2793 case FLOW_CNTL_TX_RX:
2794 writel(CR0_FDXTFCEN, ®s->CR0Set);
2795 writel(CR0_FDXRFCEN, ®s->CR0Set);
2798 case FLOW_CNTL_DISABLE:
2799 writel(CR0_FDXRFCEN, ®s->CR0Clr);
2800 writel(CR0_FDXTFCEN, ®s->CR0Clr);
2811 * velocity_ethtool_up - pre hook for ethtool
2812 * @dev: network device
2814 * Called before an ethtool operation. We need to make sure the
2815 * chip is out of D3 state before we poke at it.
2818 static int velocity_ethtool_up(struct net_device *dev)
2820 struct velocity_info *vptr = dev->priv;
2821 if (!netif_running(dev))
2822 pci_set_power_state(vptr->pdev, PCI_D0);
2827 * velocity_ethtool_down - post hook for ethtool
2828 * @dev: network device
2830 * Called after an ethtool operation. Restore the chip back to D3
2831 * state if it isn't running.
2834 static void velocity_ethtool_down(struct net_device *dev)
2836 struct velocity_info *vptr = dev->priv;
2837 if (!netif_running(dev))
2838 pci_set_power_state(vptr->pdev, PCI_D3hot);
2841 static int velocity_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
2843 struct velocity_info *vptr = dev->priv;
2844 struct mac_regs __iomem * regs = vptr->mac_regs;
2846 status = check_connection_type(vptr->mac_regs);
2848 cmd->supported = SUPPORTED_TP | SUPPORTED_Autoneg | SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full | SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full | SUPPORTED_1000baseT_Half | SUPPORTED_1000baseT_Full;
2849 if (status & VELOCITY_SPEED_100)
2850 cmd->speed = SPEED_100;
2852 cmd->speed = SPEED_10;
2853 cmd->autoneg = (status & VELOCITY_AUTONEG_ENABLE) ? AUTONEG_ENABLE : AUTONEG_DISABLE;
2854 cmd->port = PORT_TP;
2855 cmd->transceiver = XCVR_INTERNAL;
2856 cmd->phy_address = readb(®s->MIIADR) & 0x1F;
2858 if (status & VELOCITY_DUPLEX_FULL)
2859 cmd->duplex = DUPLEX_FULL;
2861 cmd->duplex = DUPLEX_HALF;
2866 static int velocity_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
2868 struct velocity_info *vptr = dev->priv;
2873 curr_status = check_connection_type(vptr->mac_regs);
2874 curr_status &= (~VELOCITY_LINK_FAIL);
2876 new_status |= ((cmd->autoneg) ? VELOCITY_AUTONEG_ENABLE : 0);
2877 new_status |= ((cmd->speed == SPEED_100) ? VELOCITY_SPEED_100 : 0);
2878 new_status |= ((cmd->speed == SPEED_10) ? VELOCITY_SPEED_10 : 0);
2879 new_status |= ((cmd->duplex == DUPLEX_FULL) ? VELOCITY_DUPLEX_FULL : 0);
2881 if ((new_status & VELOCITY_AUTONEG_ENABLE) && (new_status != (curr_status | VELOCITY_AUTONEG_ENABLE)))
2884 velocity_set_media_mode(vptr, new_status);
2889 static u32 velocity_get_link(struct net_device *dev)
2891 struct velocity_info *vptr = dev->priv;
2892 struct mac_regs __iomem * regs = vptr->mac_regs;
2893 return BYTE_REG_BITS_IS_ON(PHYSR0_LINKGD, ®s->PHYSR0) ? 0 : 1;
2896 static void velocity_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
2898 struct velocity_info *vptr = dev->priv;
2899 strcpy(info->driver, VELOCITY_NAME);
2900 strcpy(info->version, VELOCITY_VERSION);
2901 strcpy(info->bus_info, pci_name(vptr->pdev));
2904 static void velocity_ethtool_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
2906 struct velocity_info *vptr = dev->priv;
2907 wol->supported = WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_ARP;
2908 wol->wolopts |= WAKE_MAGIC;
2910 if (vptr->wol_opts & VELOCITY_WOL_PHY)
2911 wol.wolopts|=WAKE_PHY;
2913 if (vptr->wol_opts & VELOCITY_WOL_UCAST)
2914 wol->wolopts |= WAKE_UCAST;
2915 if (vptr->wol_opts & VELOCITY_WOL_ARP)
2916 wol->wolopts |= WAKE_ARP;
2917 memcpy(&wol->sopass, vptr->wol_passwd, 6);
2920 static int velocity_ethtool_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
2922 struct velocity_info *vptr = dev->priv;
2924 if (!(wol->wolopts & (WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_ARP)))
2926 vptr->wol_opts = VELOCITY_WOL_MAGIC;
2929 if (wol.wolopts & WAKE_PHY) {
2930 vptr->wol_opts|=VELOCITY_WOL_PHY;
2931 vptr->flags |=VELOCITY_FLAGS_WOL_ENABLED;
2935 if (wol->wolopts & WAKE_MAGIC) {
2936 vptr->wol_opts |= VELOCITY_WOL_MAGIC;
2937 vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED;
2939 if (wol->wolopts & WAKE_UCAST) {
2940 vptr->wol_opts |= VELOCITY_WOL_UCAST;
2941 vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED;
2943 if (wol->wolopts & WAKE_ARP) {
2944 vptr->wol_opts |= VELOCITY_WOL_ARP;
2945 vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED;
2947 memcpy(vptr->wol_passwd, wol->sopass, 6);
2951 static u32 velocity_get_msglevel(struct net_device *dev)
2956 static void velocity_set_msglevel(struct net_device *dev, u32 value)
2961 static struct ethtool_ops velocity_ethtool_ops = {
2962 .get_settings = velocity_get_settings,
2963 .set_settings = velocity_set_settings,
2964 .get_drvinfo = velocity_get_drvinfo,
2965 .get_wol = velocity_ethtool_get_wol,
2966 .set_wol = velocity_ethtool_set_wol,
2967 .get_msglevel = velocity_get_msglevel,
2968 .set_msglevel = velocity_set_msglevel,
2969 .get_link = velocity_get_link,
2970 .begin = velocity_ethtool_up,
2971 .complete = velocity_ethtool_down
2975 * velocity_mii_ioctl - MII ioctl handler
2976 * @dev: network device
2977 * @ifr: the ifreq block for the ioctl
2980 * Process MII requests made via ioctl from the network layer. These
2981 * are used by tools like kudzu to interrogate the link state of the
2985 static int velocity_mii_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
2987 struct velocity_info *vptr = dev->priv;
2988 struct mac_regs __iomem * regs = vptr->mac_regs;
2989 unsigned long flags;
2990 struct mii_ioctl_data *miidata = if_mii(ifr);
2995 miidata->phy_id = readb(®s->MIIADR) & 0x1f;
2998 if (!capable(CAP_NET_ADMIN))
3000 if(velocity_mii_read(vptr->mac_regs, miidata->reg_num & 0x1f, &(miidata->val_out)) < 0)
3004 if (!capable(CAP_NET_ADMIN))
3006 spin_lock_irqsave(&vptr->lock, flags);
3007 err = velocity_mii_write(vptr->mac_regs, miidata->reg_num & 0x1f, miidata->val_in);
3008 spin_unlock_irqrestore(&vptr->lock, flags);
3009 check_connection_type(vptr->mac_regs);
3022 * velocity_save_context - save registers
3024 * @context: buffer for stored context
3026 * Retrieve the current configuration from the velocity hardware
3027 * and stash it in the context structure, for use by the context
3028 * restore functions. This allows us to save things we need across
3032 static void velocity_save_context(struct velocity_info *vptr, struct velocity_context * context)
3034 struct mac_regs __iomem * regs = vptr->mac_regs;
3036 u8 __iomem *ptr = (u8 __iomem *)regs;
3038 for (i = MAC_REG_PAR; i < MAC_REG_CR0_CLR; i += 4)
3039 *((u32 *) (context->mac_reg + i)) = readl(ptr + i);
3041 for (i = MAC_REG_MAR; i < MAC_REG_TDCSR_CLR; i += 4)
3042 *((u32 *) (context->mac_reg + i)) = readl(ptr + i);
3044 for (i = MAC_REG_RDBASE_LO; i < MAC_REG_FIFO_TEST0; i += 4)
3045 *((u32 *) (context->mac_reg + i)) = readl(ptr + i);
3050 * velocity_restore_context - restore registers
3052 * @context: buffer for stored context
3054 * Reload the register configuration from the velocity context
3055 * created by velocity_save_context.
3058 static void velocity_restore_context(struct velocity_info *vptr, struct velocity_context *context)
3060 struct mac_regs __iomem * regs = vptr->mac_regs;
3062 u8 __iomem *ptr = (u8 __iomem *)regs;
3064 for (i = MAC_REG_PAR; i < MAC_REG_CR0_SET; i += 4) {
3065 writel(*((u32 *) (context->mac_reg + i)), ptr + i);
3069 for (i = MAC_REG_CR1_SET; i < MAC_REG_CR0_CLR; i++) {
3071 writeb(~(*((u8 *) (context->mac_reg + i))), ptr + i + 4);
3073 writeb(*((u8 *) (context->mac_reg + i)), ptr + i);
3076 for (i = MAC_REG_MAR; i < MAC_REG_IMR; i += 4) {
3077 writel(*((u32 *) (context->mac_reg + i)), ptr + i);
3080 for (i = MAC_REG_RDBASE_LO; i < MAC_REG_FIFO_TEST0; i += 4) {
3081 writel(*((u32 *) (context->mac_reg + i)), ptr + i);
3084 for (i = MAC_REG_TDCSR_SET; i <= MAC_REG_RDCSR_SET; i++) {
3085 writeb(*((u8 *) (context->mac_reg + i)), ptr + i);
3091 * wol_calc_crc - WOL CRC
3092 * @pattern: data pattern
3093 * @mask_pattern: mask
3095 * Compute the wake on lan crc hashes for the packet header
3096 * we are interested in.
3099 static u16 wol_calc_crc(int size, u8 * pattern, u8 *mask_pattern)
3105 for (i = 0; i < size; i++) {
3106 mask = mask_pattern[i];
3108 /* Skip this loop if the mask equals to zero */
3112 for (j = 0; j < 8; j++) {
3113 if ((mask & 0x01) == 0) {
3118 crc = crc_ccitt(crc, &(pattern[i * 8 + j]), 1);
3121 /* Finally, invert the result once to get the correct data */
3123 return bitreverse(crc) >> 16;
3127 * velocity_set_wol - set up for wake on lan
3128 * @vptr: velocity to set WOL status on
3130 * Set a card up for wake on lan either by unicast or by
3133 * FIXME: check static buffer is safe here
3136 static int velocity_set_wol(struct velocity_info *vptr)
3138 struct mac_regs __iomem * regs = vptr->mac_regs;
3142 static u32 mask_pattern[2][4] = {
3143 {0x00203000, 0x000003C0, 0x00000000, 0x0000000}, /* ARP */
3144 {0xfffff000, 0xffffffff, 0xffffffff, 0x000ffff} /* Magic Packet */
3147 writew(0xFFFF, ®s->WOLCRClr);
3148 writeb(WOLCFG_SAB | WOLCFG_SAM, ®s->WOLCFGSet);
3149 writew(WOLCR_MAGIC_EN, ®s->WOLCRSet);
3152 if (vptr->wol_opts & VELOCITY_WOL_PHY)
3153 writew((WOLCR_LINKON_EN|WOLCR_LINKOFF_EN), ®s->WOLCRSet);
3156 if (vptr->wol_opts & VELOCITY_WOL_UCAST) {
3157 writew(WOLCR_UNICAST_EN, ®s->WOLCRSet);
3160 if (vptr->wol_opts & VELOCITY_WOL_ARP) {
3161 struct arp_packet *arp = (struct arp_packet *) buf;
3163 memset(buf, 0, sizeof(struct arp_packet) + 7);
3165 for (i = 0; i < 4; i++)
3166 writel(mask_pattern[0][i], ®s->ByteMask[0][i]);
3168 arp->type = htons(ETH_P_ARP);
3169 arp->ar_op = htons(1);
3171 memcpy(arp->ar_tip, vptr->ip_addr, 4);
3173 crc = wol_calc_crc((sizeof(struct arp_packet) + 7) / 8, buf,
3174 (u8 *) & mask_pattern[0][0]);
3176 writew(crc, ®s->PatternCRC[0]);
3177 writew(WOLCR_ARP_EN, ®s->WOLCRSet);
3180 BYTE_REG_BITS_ON(PWCFG_WOLTYPE, ®s->PWCFGSet);
3181 BYTE_REG_BITS_ON(PWCFG_LEGACY_WOLEN, ®s->PWCFGSet);
3183 writew(0x0FFF, ®s->WOLSRClr);
3185 if (vptr->mii_status & VELOCITY_AUTONEG_ENABLE) {
3186 if (PHYID_GET_PHY_ID(vptr->phy_id) == PHYID_CICADA_CS8201)
3187 MII_REG_BITS_ON(AUXCR_MDPPS, MII_REG_AUXCR, vptr->mac_regs);
3189 MII_REG_BITS_OFF(G1000CR_1000FD | G1000CR_1000, MII_REG_G1000CR, vptr->mac_regs);
3192 if (vptr->mii_status & VELOCITY_SPEED_1000)
3193 MII_REG_BITS_ON(BMCR_REAUTO, MII_REG_BMCR, vptr->mac_regs);
3195 BYTE_REG_BITS_ON(CHIPGCR_FCMODE, ®s->CHIPGCR);
3199 GCR = readb(®s->CHIPGCR);
3200 GCR = (GCR & ~CHIPGCR_FCGMII) | CHIPGCR_FCFDX;
3201 writeb(GCR, ®s->CHIPGCR);
3204 BYTE_REG_BITS_OFF(ISR_PWEI, ®s->ISR);
3205 /* Turn on SWPTAG just before entering power mode */
3206 BYTE_REG_BITS_ON(STICKHW_SWPTAG, ®s->STICKHW);
3207 /* Go to bed ..... */
3208 BYTE_REG_BITS_ON((STICKHW_DS1 | STICKHW_DS0), ®s->STICKHW);
3213 static int velocity_suspend(struct pci_dev *pdev, pm_message_t state)
3215 struct net_device *dev = pci_get_drvdata(pdev);
3216 struct velocity_info *vptr = netdev_priv(dev);
3217 unsigned long flags;
3219 if(!netif_running(vptr->dev))
3222 netif_device_detach(vptr->dev);
3224 spin_lock_irqsave(&vptr->lock, flags);
3225 pci_save_state(pdev);
3227 if (vptr->flags & VELOCITY_FLAGS_WOL_ENABLED) {
3228 velocity_get_ip(vptr);
3229 velocity_save_context(vptr, &vptr->context);
3230 velocity_shutdown(vptr);
3231 velocity_set_wol(vptr);
3232 pci_enable_wake(pdev, 3, 1);
3233 pci_set_power_state(pdev, PCI_D3hot);
3235 velocity_save_context(vptr, &vptr->context);
3236 velocity_shutdown(vptr);
3237 pci_disable_device(pdev);
3238 pci_set_power_state(pdev, pci_choose_state(pdev, state));
3241 pci_set_power_state(pdev, pci_choose_state(pdev, state));
3243 spin_unlock_irqrestore(&vptr->lock, flags);
3247 static int velocity_resume(struct pci_dev *pdev)
3249 struct net_device *dev = pci_get_drvdata(pdev);
3250 struct velocity_info *vptr = netdev_priv(dev);
3251 unsigned long flags;
3254 if(!netif_running(vptr->dev))
3257 pci_set_power_state(pdev, PCI_D0);
3258 pci_enable_wake(pdev, 0, 0);
3259 pci_restore_state(pdev);
3261 mac_wol_reset(vptr->mac_regs);
3263 spin_lock_irqsave(&vptr->lock, flags);
3264 velocity_restore_context(vptr, &vptr->context);
3265 velocity_init_registers(vptr, VELOCITY_INIT_WOL);
3266 mac_disable_int(vptr->mac_regs);
3268 velocity_tx_srv(vptr, 0);
3270 for (i = 0; i < vptr->num_txq; i++) {
3271 if (vptr->td_used[i]) {
3272 mac_tx_queue_wake(vptr->mac_regs, i);
3276 mac_enable_int(vptr->mac_regs);
3277 spin_unlock_irqrestore(&vptr->lock, flags);
3278 netif_device_attach(vptr->dev);
3283 static int velocity_netdev_event(struct notifier_block *nb, unsigned long notification, void *ptr)
3285 struct in_ifaddr *ifa = (struct in_ifaddr *) ptr;
3288 struct net_device *dev = ifa->ifa_dev->dev;
3289 struct velocity_info *vptr;
3290 unsigned long flags;
3292 spin_lock_irqsave(&velocity_dev_list_lock, flags);
3293 list_for_each_entry(vptr, &velocity_dev_list, list) {
3294 if (vptr->dev == dev) {
3295 velocity_get_ip(vptr);
3299 spin_unlock_irqrestore(&velocity_dev_list_lock, flags);