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 kfree(vptr->td_infos[j]);
1216 vptr->td_infos[j] = NULL;
1221 * velocity_rx_srv - service RX interrupt
1223 * @status: adapter status (unused)
1225 * Walk the receive ring of the velocity adapter and remove
1226 * any received packets from the receive queue. Hand the ring
1227 * slots back to the adapter for reuse.
1230 static int velocity_rx_srv(struct velocity_info *vptr, int status)
1232 struct net_device_stats *stats = &vptr->stats;
1233 int rd_curr = vptr->rd_curr;
1237 struct rx_desc *rd = vptr->rd_ring + rd_curr;
1239 if (!vptr->rd_info[rd_curr].skb)
1242 if (rd->rdesc0.owner == OWNED_BY_NIC)
1248 * Don't drop CE or RL error frame although RXOK is off
1250 if ((rd->rdesc0.RSR & RSR_RXOK) || (!(rd->rdesc0.RSR & RSR_RXOK) && (rd->rdesc0.RSR & (RSR_CE | RSR_RL)))) {
1251 if (velocity_receive_frame(vptr, rd_curr) < 0)
1252 stats->rx_dropped++;
1254 if (rd->rdesc0.RSR & RSR_CRC)
1255 stats->rx_crc_errors++;
1256 if (rd->rdesc0.RSR & RSR_FAE)
1257 stats->rx_frame_errors++;
1259 stats->rx_dropped++;
1264 vptr->dev->last_rx = jiffies;
1267 if (rd_curr >= vptr->options.numrx)
1269 } while (++works <= 15);
1271 vptr->rd_curr = rd_curr;
1273 if (works > 0 && velocity_rx_refill(vptr) < 0) {
1274 VELOCITY_PRT(MSG_LEVEL_ERR, KERN_ERR
1275 "%s: rx buf allocation failure\n", vptr->dev->name);
1283 * velocity_rx_csum - checksum process
1284 * @rd: receive packet descriptor
1285 * @skb: network layer packet buffer
1287 * Process the status bits for the received packet and determine
1288 * if the checksum was computed and verified by the hardware
1291 static inline void velocity_rx_csum(struct rx_desc *rd, struct sk_buff *skb)
1293 skb->ip_summed = CHECKSUM_NONE;
1295 if (rd->rdesc1.CSM & CSM_IPKT) {
1296 if (rd->rdesc1.CSM & CSM_IPOK) {
1297 if ((rd->rdesc1.CSM & CSM_TCPKT) ||
1298 (rd->rdesc1.CSM & CSM_UDPKT)) {
1299 if (!(rd->rdesc1.CSM & CSM_TUPOK)) {
1303 skb->ip_summed = CHECKSUM_UNNECESSARY;
1309 * velocity_rx_copy - in place Rx copy for small packets
1310 * @rx_skb: network layer packet buffer candidate
1311 * @pkt_size: received data size
1312 * @rd: receive packet descriptor
1313 * @dev: network device
1315 * Replace the current skb that is scheduled for Rx processing by a
1316 * shorter, immediatly allocated skb, if the received packet is small
1317 * enough. This function returns a negative value if the received
1318 * packet is too big or if memory is exhausted.
1320 static inline int velocity_rx_copy(struct sk_buff **rx_skb, int pkt_size,
1321 struct velocity_info *vptr)
1325 if (pkt_size < rx_copybreak) {
1326 struct sk_buff *new_skb;
1328 new_skb = dev_alloc_skb(pkt_size + 2);
1330 new_skb->dev = vptr->dev;
1331 new_skb->ip_summed = rx_skb[0]->ip_summed;
1333 if (vptr->flags & VELOCITY_FLAGS_IP_ALIGN)
1334 skb_reserve(new_skb, 2);
1336 memcpy(new_skb->data, rx_skb[0]->data, pkt_size);
1346 * velocity_iph_realign - IP header alignment
1347 * @vptr: velocity we are handling
1348 * @skb: network layer packet buffer
1349 * @pkt_size: received data size
1351 * Align IP header on a 2 bytes boundary. This behavior can be
1352 * configured by the user.
1354 static inline void velocity_iph_realign(struct velocity_info *vptr,
1355 struct sk_buff *skb, int pkt_size)
1357 /* FIXME - memmove ? */
1358 if (vptr->flags & VELOCITY_FLAGS_IP_ALIGN) {
1361 for (i = pkt_size; i >= 0; i--)
1362 *(skb->data + i + 2) = *(skb->data + i);
1363 skb_reserve(skb, 2);
1368 * velocity_receive_frame - received packet processor
1369 * @vptr: velocity we are handling
1372 * A packet has arrived. We process the packet and if appropriate
1373 * pass the frame up the network stack
1376 static int velocity_receive_frame(struct velocity_info *vptr, int idx)
1378 void (*pci_action)(struct pci_dev *, dma_addr_t, size_t, int);
1379 struct net_device_stats *stats = &vptr->stats;
1380 struct velocity_rd_info *rd_info = &(vptr->rd_info[idx]);
1381 struct rx_desc *rd = &(vptr->rd_ring[idx]);
1382 int pkt_len = rd->rdesc0.len;
1383 struct sk_buff *skb;
1385 if (rd->rdesc0.RSR & (RSR_STP | RSR_EDP)) {
1386 VELOCITY_PRT(MSG_LEVEL_VERBOSE, KERN_ERR " %s : the received frame span multple RDs.\n", vptr->dev->name);
1387 stats->rx_length_errors++;
1391 if (rd->rdesc0.RSR & RSR_MAR)
1392 vptr->stats.multicast++;
1395 skb->dev = vptr->dev;
1397 pci_dma_sync_single_for_cpu(vptr->pdev, rd_info->skb_dma,
1398 vptr->rx_buf_sz, PCI_DMA_FROMDEVICE);
1401 * Drop frame not meeting IEEE 802.3
1404 if (vptr->flags & VELOCITY_FLAGS_VAL_PKT_LEN) {
1405 if (rd->rdesc0.RSR & RSR_RL) {
1406 stats->rx_length_errors++;
1411 pci_action = pci_dma_sync_single_for_device;
1413 velocity_rx_csum(rd, skb);
1415 if (velocity_rx_copy(&skb, pkt_len, vptr) < 0) {
1416 velocity_iph_realign(vptr, skb, pkt_len);
1417 pci_action = pci_unmap_single;
1418 rd_info->skb = NULL;
1421 pci_action(vptr->pdev, rd_info->skb_dma, vptr->rx_buf_sz,
1422 PCI_DMA_FROMDEVICE);
1424 skb_put(skb, pkt_len - 4);
1425 skb->protocol = eth_type_trans(skb, skb->dev);
1427 stats->rx_bytes += pkt_len;
1434 * velocity_alloc_rx_buf - allocate aligned receive buffer
1438 * Allocate a new full sized buffer for the reception of a frame and
1439 * map it into PCI space for the hardware to use. The hardware
1440 * requires *64* byte alignment of the buffer which makes life
1441 * less fun than would be ideal.
1444 static int velocity_alloc_rx_buf(struct velocity_info *vptr, int idx)
1446 struct rx_desc *rd = &(vptr->rd_ring[idx]);
1447 struct velocity_rd_info *rd_info = &(vptr->rd_info[idx]);
1449 rd_info->skb = dev_alloc_skb(vptr->rx_buf_sz + 64);
1450 if (rd_info->skb == NULL)
1454 * Do the gymnastics to get the buffer head for data at
1457 skb_reserve(rd_info->skb, (unsigned long) rd_info->skb->data & 63);
1458 rd_info->skb->dev = vptr->dev;
1459 rd_info->skb_dma = pci_map_single(vptr->pdev, rd_info->skb->data, vptr->rx_buf_sz, PCI_DMA_FROMDEVICE);
1462 * Fill in the descriptor to match
1465 *((u32 *) & (rd->rdesc0)) = 0;
1466 rd->len = cpu_to_le32(vptr->rx_buf_sz);
1468 rd->pa_low = cpu_to_le32(rd_info->skb_dma);
1474 * tx_srv - transmit interrupt service
1478 * Scan the queues looking for transmitted packets that
1479 * we can complete and clean up. Update any statistics as
1483 static int velocity_tx_srv(struct velocity_info *vptr, u32 status)
1490 struct velocity_td_info *tdinfo;
1491 struct net_device_stats *stats = &vptr->stats;
1493 for (qnum = 0; qnum < vptr->num_txq; qnum++) {
1494 for (idx = vptr->td_tail[qnum]; vptr->td_used[qnum] > 0;
1495 idx = (idx + 1) % vptr->options.numtx) {
1500 td = &(vptr->td_rings[qnum][idx]);
1501 tdinfo = &(vptr->td_infos[qnum][idx]);
1503 if (td->tdesc0.owner == OWNED_BY_NIC)
1509 if (td->tdesc0.TSR & TSR0_TERR) {
1511 stats->tx_dropped++;
1512 if (td->tdesc0.TSR & TSR0_CDH)
1513 stats->tx_heartbeat_errors++;
1514 if (td->tdesc0.TSR & TSR0_CRS)
1515 stats->tx_carrier_errors++;
1516 if (td->tdesc0.TSR & TSR0_ABT)
1517 stats->tx_aborted_errors++;
1518 if (td->tdesc0.TSR & TSR0_OWC)
1519 stats->tx_window_errors++;
1521 stats->tx_packets++;
1522 stats->tx_bytes += tdinfo->skb->len;
1524 velocity_free_tx_buf(vptr, tdinfo);
1525 vptr->td_used[qnum]--;
1527 vptr->td_tail[qnum] = idx;
1529 if (AVAIL_TD(vptr, qnum) < 1) {
1534 * Look to see if we should kick the transmit network
1535 * layer for more work.
1537 if (netif_queue_stopped(vptr->dev) && (full == 0)
1538 && (!(vptr->mii_status & VELOCITY_LINK_FAIL))) {
1539 netif_wake_queue(vptr->dev);
1545 * velocity_print_link_status - link status reporting
1546 * @vptr: velocity to report on
1548 * Turn the link status of the velocity card into a kernel log
1549 * description of the new link state, detailing speed and duplex
1553 static void velocity_print_link_status(struct velocity_info *vptr)
1556 if (vptr->mii_status & VELOCITY_LINK_FAIL) {
1557 VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: failed to detect cable link\n", vptr->dev->name);
1558 } else if (vptr->options.spd_dpx == SPD_DPX_AUTO) {
1559 VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: Link autonegation", vptr->dev->name);
1561 if (vptr->mii_status & VELOCITY_SPEED_1000)
1562 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 1000M bps");
1563 else if (vptr->mii_status & VELOCITY_SPEED_100)
1564 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 100M bps");
1566 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 10M bps");
1568 if (vptr->mii_status & VELOCITY_DUPLEX_FULL)
1569 VELOCITY_PRT(MSG_LEVEL_INFO, " full duplex\n");
1571 VELOCITY_PRT(MSG_LEVEL_INFO, " half duplex\n");
1573 VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: Link forced", vptr->dev->name);
1574 switch (vptr->options.spd_dpx) {
1575 case SPD_DPX_100_HALF:
1576 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 100M bps half duplex\n");
1578 case SPD_DPX_100_FULL:
1579 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 100M bps full duplex\n");
1581 case SPD_DPX_10_HALF:
1582 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 10M bps half duplex\n");
1584 case SPD_DPX_10_FULL:
1585 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 10M bps full duplex\n");
1594 * velocity_error - handle error from controller
1596 * @status: card status
1598 * Process an error report from the hardware and attempt to recover
1599 * the card itself. At the moment we cannot recover from some
1600 * theoretically impossible errors but this could be fixed using
1601 * the pci_device_failed logic to bounce the hardware
1605 static void velocity_error(struct velocity_info *vptr, int status)
1608 if (status & ISR_TXSTLI) {
1609 struct mac_regs __iomem * regs = vptr->mac_regs;
1611 printk(KERN_ERR "TD structure errror TDindex=%hx\n", readw(®s->TDIdx[0]));
1612 BYTE_REG_BITS_ON(TXESR_TDSTR, ®s->TXESR);
1613 writew(TRDCSR_RUN, ®s->TDCSRClr);
1614 netif_stop_queue(vptr->dev);
1616 /* FIXME: port over the pci_device_failed code and use it
1620 if (status & ISR_SRCI) {
1621 struct mac_regs __iomem * regs = vptr->mac_regs;
1624 if (vptr->options.spd_dpx == SPD_DPX_AUTO) {
1625 vptr->mii_status = check_connection_type(regs);
1628 * If it is a 3119, disable frame bursting in
1629 * halfduplex mode and enable it in fullduplex
1632 if (vptr->rev_id < REV_ID_VT3216_A0) {
1633 if (vptr->mii_status | VELOCITY_DUPLEX_FULL)
1634 BYTE_REG_BITS_ON(TCR_TB2BDIS, ®s->TCR);
1636 BYTE_REG_BITS_OFF(TCR_TB2BDIS, ®s->TCR);
1639 * Only enable CD heart beat counter in 10HD mode
1641 if (!(vptr->mii_status & VELOCITY_DUPLEX_FULL) && (vptr->mii_status & VELOCITY_SPEED_10)) {
1642 BYTE_REG_BITS_OFF(TESTCFG_HBDIS, ®s->TESTCFG);
1644 BYTE_REG_BITS_ON(TESTCFG_HBDIS, ®s->TESTCFG);
1648 * Get link status from PHYSR0
1650 linked = readb(®s->PHYSR0) & PHYSR0_LINKGD;
1653 vptr->mii_status &= ~VELOCITY_LINK_FAIL;
1655 vptr->mii_status |= VELOCITY_LINK_FAIL;
1658 velocity_print_link_status(vptr);
1659 enable_flow_control_ability(vptr);
1662 * Re-enable auto-polling because SRCI will disable
1666 enable_mii_autopoll(regs);
1668 if (vptr->mii_status & VELOCITY_LINK_FAIL)
1669 netif_stop_queue(vptr->dev);
1671 netif_wake_queue(vptr->dev);
1674 if (status & ISR_MIBFI)
1675 velocity_update_hw_mibs(vptr);
1676 if (status & ISR_LSTEI)
1677 mac_rx_queue_wake(vptr->mac_regs);
1681 * velocity_free_tx_buf - free transmit buffer
1685 * Release an transmit buffer. If the buffer was preallocated then
1686 * recycle it, if not then unmap the buffer.
1689 static void velocity_free_tx_buf(struct velocity_info *vptr, struct velocity_td_info *tdinfo)
1691 struct sk_buff *skb = tdinfo->skb;
1695 * Don't unmap the pre-allocated tx_bufs
1697 if (tdinfo->skb_dma && (tdinfo->skb_dma[0] != tdinfo->buf_dma)) {
1699 for (i = 0; i < tdinfo->nskb_dma; i++) {
1700 #ifdef VELOCITY_ZERO_COPY_SUPPORT
1701 pci_unmap_single(vptr->pdev, tdinfo->skb_dma[i], td->tdesc1.len, PCI_DMA_TODEVICE);
1703 pci_unmap_single(vptr->pdev, tdinfo->skb_dma[i], skb->len, PCI_DMA_TODEVICE);
1705 tdinfo->skb_dma[i] = 0;
1708 dev_kfree_skb_irq(skb);
1713 * velocity_open - interface activation callback
1714 * @dev: network layer device to open
1716 * Called when the network layer brings the interface up. Returns
1717 * a negative posix error code on failure, or zero on success.
1719 * All the ring allocation and set up is done on open for this
1720 * adapter to minimise memory usage when inactive
1723 static int velocity_open(struct net_device *dev)
1725 struct velocity_info *vptr = dev->priv;
1728 vptr->rx_buf_sz = (dev->mtu <= 1504 ? PKT_BUF_SZ : dev->mtu + 32);
1730 ret = velocity_init_rings(vptr);
1734 ret = velocity_init_rd_ring(vptr);
1736 goto err_free_desc_rings;
1738 ret = velocity_init_td_ring(vptr);
1740 goto err_free_rd_ring;
1742 /* Ensure chip is running */
1743 pci_set_power_state(vptr->pdev, PCI_D0);
1745 velocity_init_registers(vptr, VELOCITY_INIT_COLD);
1747 ret = request_irq(vptr->pdev->irq, &velocity_intr, SA_SHIRQ,
1750 /* Power down the chip */
1751 pci_set_power_state(vptr->pdev, PCI_D3hot);
1752 goto err_free_td_ring;
1755 mac_enable_int(vptr->mac_regs);
1756 netif_start_queue(dev);
1757 vptr->flags |= VELOCITY_FLAGS_OPENED;
1762 velocity_free_td_ring(vptr);
1764 velocity_free_rd_ring(vptr);
1765 err_free_desc_rings:
1766 velocity_free_rings(vptr);
1771 * velocity_change_mtu - MTU change callback
1772 * @dev: network device
1773 * @new_mtu: desired MTU
1775 * Handle requests from the networking layer for MTU change on
1776 * this interface. It gets called on a change by the network layer.
1777 * Return zero for success or negative posix error code.
1780 static int velocity_change_mtu(struct net_device *dev, int new_mtu)
1782 struct velocity_info *vptr = dev->priv;
1783 unsigned long flags;
1784 int oldmtu = dev->mtu;
1787 if ((new_mtu < VELOCITY_MIN_MTU) || new_mtu > (VELOCITY_MAX_MTU)) {
1788 VELOCITY_PRT(MSG_LEVEL_ERR, KERN_NOTICE "%s: Invalid MTU.\n",
1793 if (new_mtu != oldmtu) {
1794 spin_lock_irqsave(&vptr->lock, flags);
1796 netif_stop_queue(dev);
1797 velocity_shutdown(vptr);
1799 velocity_free_td_ring(vptr);
1800 velocity_free_rd_ring(vptr);
1804 vptr->rx_buf_sz = 9 * 1024;
1805 else if (new_mtu > 4096)
1806 vptr->rx_buf_sz = 8192;
1808 vptr->rx_buf_sz = 4 * 1024;
1810 ret = velocity_init_rd_ring(vptr);
1814 ret = velocity_init_td_ring(vptr);
1818 velocity_init_registers(vptr, VELOCITY_INIT_COLD);
1820 mac_enable_int(vptr->mac_regs);
1821 netif_start_queue(dev);
1823 spin_unlock_irqrestore(&vptr->lock, flags);
1830 * velocity_shutdown - shut down the chip
1831 * @vptr: velocity to deactivate
1833 * Shuts down the internal operations of the velocity and
1834 * disables interrupts, autopolling, transmit and receive
1837 static void velocity_shutdown(struct velocity_info *vptr)
1839 struct mac_regs __iomem * regs = vptr->mac_regs;
1840 mac_disable_int(regs);
1841 writel(CR0_STOP, ®s->CR0Set);
1842 writew(0xFFFF, ®s->TDCSRClr);
1843 writeb(0xFF, ®s->RDCSRClr);
1844 safe_disable_mii_autopoll(regs);
1845 mac_clear_isr(regs);
1849 * velocity_close - close adapter callback
1850 * @dev: network device
1852 * Callback from the network layer when the velocity is being
1853 * deactivated by the network layer
1856 static int velocity_close(struct net_device *dev)
1858 struct velocity_info *vptr = dev->priv;
1860 netif_stop_queue(dev);
1861 velocity_shutdown(vptr);
1863 if (vptr->flags & VELOCITY_FLAGS_WOL_ENABLED)
1864 velocity_get_ip(vptr);
1866 free_irq(dev->irq, dev);
1868 /* Power down the chip */
1869 pci_set_power_state(vptr->pdev, PCI_D3hot);
1871 /* Free the resources */
1872 velocity_free_td_ring(vptr);
1873 velocity_free_rd_ring(vptr);
1874 velocity_free_rings(vptr);
1876 vptr->flags &= (~VELOCITY_FLAGS_OPENED);
1881 * velocity_xmit - transmit packet callback
1882 * @skb: buffer to transmit
1883 * @dev: network device
1885 * Called by the networ layer to request a packet is queued to
1886 * the velocity. Returns zero on success.
1889 static int velocity_xmit(struct sk_buff *skb, struct net_device *dev)
1891 struct velocity_info *vptr = dev->priv;
1893 struct tx_desc *td_ptr;
1894 struct velocity_td_info *tdinfo;
1895 unsigned long flags;
1898 int pktlen = skb->len;
1900 spin_lock_irqsave(&vptr->lock, flags);
1902 index = vptr->td_curr[qnum];
1903 td_ptr = &(vptr->td_rings[qnum][index]);
1904 tdinfo = &(vptr->td_infos[qnum][index]);
1906 td_ptr->tdesc1.TCPLS = TCPLS_NORMAL;
1907 td_ptr->tdesc1.TCR = TCR0_TIC;
1908 td_ptr->td_buf[0].queue = 0;
1913 if (pktlen < ETH_ZLEN) {
1914 /* Cannot occur until ZC support */
1915 if(skb_linearize(skb, GFP_ATOMIC))
1918 memcpy(tdinfo->buf, skb->data, skb->len);
1919 memset(tdinfo->buf + skb->len, 0, ETH_ZLEN - skb->len);
1921 tdinfo->skb_dma[0] = tdinfo->buf_dma;
1922 td_ptr->tdesc0.pktsize = pktlen;
1923 td_ptr->td_buf[0].pa_low = cpu_to_le32(tdinfo->skb_dma[0]);
1924 td_ptr->td_buf[0].pa_high = 0;
1925 td_ptr->td_buf[0].bufsize = td_ptr->tdesc0.pktsize;
1926 tdinfo->nskb_dma = 1;
1927 td_ptr->tdesc1.CMDZ = 2;
1929 #ifdef VELOCITY_ZERO_COPY_SUPPORT
1930 if (skb_shinfo(skb)->nr_frags > 0) {
1931 int nfrags = skb_shinfo(skb)->nr_frags;
1934 skb_linearize(skb, GFP_ATOMIC);
1935 memcpy(tdinfo->buf, skb->data, skb->len);
1936 tdinfo->skb_dma[0] = tdinfo->buf_dma;
1937 td_ptr->tdesc0.pktsize =
1938 td_ptr->td_buf[0].pa_low = cpu_to_le32(tdinfo->skb_dma[0]);
1939 td_ptr->td_buf[0].pa_high = 0;
1940 td_ptr->td_buf[0].bufsize = td_ptr->tdesc0.pktsize;
1941 tdinfo->nskb_dma = 1;
1942 td_ptr->tdesc1.CMDZ = 2;
1945 tdinfo->nskb_dma = 0;
1946 tdinfo->skb_dma[i] = pci_map_single(vptr->pdev, skb->data, skb->len - skb->data_len, PCI_DMA_TODEVICE);
1948 td_ptr->tdesc0.pktsize = pktlen;
1950 /* FIXME: support 48bit DMA later */
1951 td_ptr->td_buf[i].pa_low = cpu_to_le32(tdinfo->skb_dma);
1952 td_ptr->td_buf[i].pa_high = 0;
1953 td_ptr->td_buf[i].bufsize = skb->len->skb->data_len;
1955 for (i = 0; i < nfrags; i++) {
1956 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
1957 void *addr = ((void *) page_address(frag->page + frag->page_offset));
1959 tdinfo->skb_dma[i + 1] = pci_map_single(vptr->pdev, addr, frag->size, PCI_DMA_TODEVICE);
1961 td_ptr->td_buf[i + 1].pa_low = cpu_to_le32(tdinfo->skb_dma[i + 1]);
1962 td_ptr->td_buf[i + 1].pa_high = 0;
1963 td_ptr->td_buf[i + 1].bufsize = frag->size;
1965 tdinfo->nskb_dma = i - 1;
1966 td_ptr->tdesc1.CMDZ = i;
1973 * Map the linear network buffer into PCI space and
1974 * add it to the transmit ring.
1977 tdinfo->skb_dma[0] = pci_map_single(vptr->pdev, skb->data, pktlen, PCI_DMA_TODEVICE);
1978 td_ptr->tdesc0.pktsize = pktlen;
1979 td_ptr->td_buf[0].pa_low = cpu_to_le32(tdinfo->skb_dma[0]);
1980 td_ptr->td_buf[0].pa_high = 0;
1981 td_ptr->td_buf[0].bufsize = td_ptr->tdesc0.pktsize;
1982 tdinfo->nskb_dma = 1;
1983 td_ptr->tdesc1.CMDZ = 2;
1986 if (vptr->flags & VELOCITY_FLAGS_TAGGING) {
1987 td_ptr->tdesc1.pqinf.VID = (vptr->options.vid & 0xfff);
1988 td_ptr->tdesc1.pqinf.priority = 0;
1989 td_ptr->tdesc1.pqinf.CFI = 0;
1990 td_ptr->tdesc1.TCR |= TCR0_VETAG;
1994 * Handle hardware checksum
1996 if ((vptr->flags & VELOCITY_FLAGS_TX_CSUM)
1997 && (skb->ip_summed == CHECKSUM_HW)) {
1998 struct iphdr *ip = skb->nh.iph;
1999 if (ip->protocol == IPPROTO_TCP)
2000 td_ptr->tdesc1.TCR |= TCR0_TCPCK;
2001 else if (ip->protocol == IPPROTO_UDP)
2002 td_ptr->tdesc1.TCR |= (TCR0_UDPCK);
2003 td_ptr->tdesc1.TCR |= TCR0_IPCK;
2007 int prev = index - 1;
2010 prev = vptr->options.numtx - 1;
2011 td_ptr->tdesc0.owner = OWNED_BY_NIC;
2012 vptr->td_used[qnum]++;
2013 vptr->td_curr[qnum] = (index + 1) % vptr->options.numtx;
2015 if (AVAIL_TD(vptr, qnum) < 1)
2016 netif_stop_queue(dev);
2018 td_ptr = &(vptr->td_rings[qnum][prev]);
2019 td_ptr->td_buf[0].queue = 1;
2020 mac_tx_queue_wake(vptr->mac_regs, qnum);
2022 dev->trans_start = jiffies;
2023 spin_unlock_irqrestore(&vptr->lock, flags);
2028 * velocity_intr - interrupt callback
2029 * @irq: interrupt number
2030 * @dev_instance: interrupting device
2031 * @pt_regs: CPU register state at interrupt
2033 * Called whenever an interrupt is generated by the velocity
2034 * adapter IRQ line. We may not be the source of the interrupt
2035 * and need to identify initially if we are, and if not exit as
2036 * efficiently as possible.
2039 static int velocity_intr(int irq, void *dev_instance, struct pt_regs *regs)
2041 struct net_device *dev = dev_instance;
2042 struct velocity_info *vptr = dev->priv;
2047 spin_lock(&vptr->lock);
2048 isr_status = mac_read_isr(vptr->mac_regs);
2051 if (isr_status == 0) {
2052 spin_unlock(&vptr->lock);
2056 mac_disable_int(vptr->mac_regs);
2059 * Keep processing the ISR until we have completed
2060 * processing and the isr_status becomes zero
2063 while (isr_status != 0) {
2064 mac_write_isr(vptr->mac_regs, isr_status);
2065 if (isr_status & (~(ISR_PRXI | ISR_PPRXI | ISR_PTXI | ISR_PPTXI)))
2066 velocity_error(vptr, isr_status);
2067 if (isr_status & (ISR_PRXI | ISR_PPRXI))
2068 max_count += velocity_rx_srv(vptr, isr_status);
2069 if (isr_status & (ISR_PTXI | ISR_PPTXI))
2070 max_count += velocity_tx_srv(vptr, isr_status);
2071 isr_status = mac_read_isr(vptr->mac_regs);
2072 if (max_count > vptr->options.int_works)
2074 printk(KERN_WARNING "%s: excessive work at interrupt.\n",
2079 spin_unlock(&vptr->lock);
2080 mac_enable_int(vptr->mac_regs);
2087 * velocity_set_multi - filter list change callback
2088 * @dev: network device
2090 * Called by the network layer when the filter lists need to change
2091 * for a velocity adapter. Reload the CAMs with the new address
2095 static void velocity_set_multi(struct net_device *dev)
2097 struct velocity_info *vptr = dev->priv;
2098 struct mac_regs __iomem * regs = vptr->mac_regs;
2101 struct dev_mc_list *mclist;
2103 if (dev->flags & IFF_PROMISC) { /* Set promiscuous. */
2104 /* Unconditionally log net taps. */
2105 printk(KERN_NOTICE "%s: Promiscuous mode enabled.\n", dev->name);
2106 writel(0xffffffff, ®s->MARCAM[0]);
2107 writel(0xffffffff, ®s->MARCAM[4]);
2108 rx_mode = (RCR_AM | RCR_AB | RCR_PROM);
2109 } else if ((dev->mc_count > vptr->multicast_limit)
2110 || (dev->flags & IFF_ALLMULTI)) {
2111 writel(0xffffffff, ®s->MARCAM[0]);
2112 writel(0xffffffff, ®s->MARCAM[4]);
2113 rx_mode = (RCR_AM | RCR_AB);
2115 int offset = MCAM_SIZE - vptr->multicast_limit;
2116 mac_get_cam_mask(regs, vptr->mCAMmask, VELOCITY_MULTICAST_CAM);
2118 for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count; i++, mclist = mclist->next) {
2119 mac_set_cam(regs, i + offset, mclist->dmi_addr, VELOCITY_MULTICAST_CAM);
2120 vptr->mCAMmask[(offset + i) / 8] |= 1 << ((offset + i) & 7);
2123 mac_set_cam_mask(regs, vptr->mCAMmask, VELOCITY_MULTICAST_CAM);
2124 rx_mode = (RCR_AM | RCR_AB);
2126 if (dev->mtu > 1500)
2129 BYTE_REG_BITS_ON(rx_mode, ®s->RCR);
2134 * velocity_get_status - statistics callback
2135 * @dev: network device
2137 * Callback from the network layer to allow driver statistics
2138 * to be resynchronized with hardware collected state. In the
2139 * case of the velocity we need to pull the MIB counters from
2140 * the hardware into the counters before letting the network
2141 * layer display them.
2144 static struct net_device_stats *velocity_get_stats(struct net_device *dev)
2146 struct velocity_info *vptr = dev->priv;
2148 /* If the hardware is down, don't touch MII */
2149 if(!netif_running(dev))
2150 return &vptr->stats;
2152 spin_lock_irq(&vptr->lock);
2153 velocity_update_hw_mibs(vptr);
2154 spin_unlock_irq(&vptr->lock);
2156 vptr->stats.rx_packets = vptr->mib_counter[HW_MIB_ifRxAllPkts];
2157 vptr->stats.rx_errors = vptr->mib_counter[HW_MIB_ifRxErrorPkts];
2158 vptr->stats.rx_length_errors = vptr->mib_counter[HW_MIB_ifInRangeLengthErrors];
2160 // unsigned long rx_dropped; /* no space in linux buffers */
2161 vptr->stats.collisions = vptr->mib_counter[HW_MIB_ifTxEtherCollisions];
2162 /* detailed rx_errors: */
2163 // unsigned long rx_length_errors;
2164 // unsigned long rx_over_errors; /* receiver ring buff overflow */
2165 vptr->stats.rx_crc_errors = vptr->mib_counter[HW_MIB_ifRxPktCRCE];
2166 // unsigned long rx_frame_errors; /* recv'd frame alignment error */
2167 // unsigned long rx_fifo_errors; /* recv'r fifo overrun */
2168 // unsigned long rx_missed_errors; /* receiver missed packet */
2170 /* detailed tx_errors */
2171 // unsigned long tx_fifo_errors;
2173 return &vptr->stats;
2178 * velocity_ioctl - ioctl entry point
2179 * @dev: network device
2180 * @rq: interface request ioctl
2181 * @cmd: command code
2183 * Called when the user issues an ioctl request to the network
2184 * device in question. The velocity interface supports MII.
2187 static int velocity_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
2189 struct velocity_info *vptr = dev->priv;
2192 /* If we are asked for information and the device is power
2193 saving then we need to bring the device back up to talk to it */
2195 if (!netif_running(dev))
2196 pci_set_power_state(vptr->pdev, PCI_D0);
2199 case SIOCGMIIPHY: /* Get address of MII PHY in use. */
2200 case SIOCGMIIREG: /* Read MII PHY register. */
2201 case SIOCSMIIREG: /* Write to MII PHY register. */
2202 ret = velocity_mii_ioctl(dev, rq, cmd);
2208 if (!netif_running(dev))
2209 pci_set_power_state(vptr->pdev, PCI_D3hot);
2216 * Definition for our device driver. The PCI layer interface
2217 * uses this to handle all our card discover and plugging
2220 static struct pci_driver velocity_driver = {
2221 .name = VELOCITY_NAME,
2222 .id_table = velocity_id_table,
2223 .probe = velocity_found1,
2224 .remove = __devexit_p(velocity_remove1),
2226 .suspend = velocity_suspend,
2227 .resume = velocity_resume,
2232 * velocity_init_module - load time function
2234 * Called when the velocity module is loaded. The PCI driver
2235 * is registered with the PCI layer, and in turn will call
2236 * the probe functions for each velocity adapter installed
2240 static int __init velocity_init_module(void)
2244 velocity_register_notifier();
2245 ret = pci_module_init(&velocity_driver);
2247 velocity_unregister_notifier();
2252 * velocity_cleanup - module unload
2254 * When the velocity hardware is unloaded this function is called.
2255 * It will clean up the notifiers and the unregister the PCI
2256 * driver interface for this hardware. This in turn cleans up
2257 * all discovered interfaces before returning from the function
2260 static void __exit velocity_cleanup_module(void)
2262 velocity_unregister_notifier();
2263 pci_unregister_driver(&velocity_driver);
2266 module_init(velocity_init_module);
2267 module_exit(velocity_cleanup_module);
2271 * MII access , media link mode setting functions
2276 * mii_init - set up MII
2277 * @vptr: velocity adapter
2278 * @mii_status: links tatus
2280 * Set up the PHY for the current link state.
2283 static void mii_init(struct velocity_info *vptr, u32 mii_status)
2287 switch (PHYID_GET_PHY_ID(vptr->phy_id)) {
2288 case PHYID_CICADA_CS8201:
2290 * Reset to hardware default
2292 MII_REG_BITS_OFF((ANAR_ASMDIR | ANAR_PAUSE), MII_REG_ANAR, vptr->mac_regs);
2294 * Turn on ECHODIS bit in NWay-forced full mode and turn it
2295 * off it in NWay-forced half mode for NWay-forced v.s.
2296 * legacy-forced issue.
2298 if (vptr->mii_status & VELOCITY_DUPLEX_FULL)
2299 MII_REG_BITS_ON(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs);
2301 MII_REG_BITS_OFF(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs);
2303 * Turn on Link/Activity LED enable bit for CIS8201
2305 MII_REG_BITS_ON(PLED_LALBE, MII_REG_PLED, vptr->mac_regs);
2307 case PHYID_VT3216_32BIT:
2308 case PHYID_VT3216_64BIT:
2310 * Reset to hardware default
2312 MII_REG_BITS_ON((ANAR_ASMDIR | ANAR_PAUSE), MII_REG_ANAR, vptr->mac_regs);
2314 * Turn on ECHODIS bit in NWay-forced full mode and turn it
2315 * off it in NWay-forced half mode for NWay-forced v.s.
2316 * legacy-forced issue
2318 if (vptr->mii_status & VELOCITY_DUPLEX_FULL)
2319 MII_REG_BITS_ON(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs);
2321 MII_REG_BITS_OFF(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs);
2324 case PHYID_MARVELL_1000:
2325 case PHYID_MARVELL_1000S:
2327 * Assert CRS on Transmit
2329 MII_REG_BITS_ON(PSCR_ACRSTX, MII_REG_PSCR, vptr->mac_regs);
2331 * Reset to hardware default
2333 MII_REG_BITS_ON((ANAR_ASMDIR | ANAR_PAUSE), MII_REG_ANAR, vptr->mac_regs);
2338 velocity_mii_read(vptr->mac_regs, MII_REG_BMCR, &BMCR);
2339 if (BMCR & BMCR_ISO) {
2341 velocity_mii_write(vptr->mac_regs, MII_REG_BMCR, BMCR);
2346 * safe_disable_mii_autopoll - autopoll off
2347 * @regs: velocity registers
2349 * Turn off the autopoll and wait for it to disable on the chip
2352 static void safe_disable_mii_autopoll(struct mac_regs __iomem * regs)
2356 /* turn off MAUTO */
2357 writeb(0, ®s->MIICR);
2358 for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
2360 if (BYTE_REG_BITS_IS_ON(MIISR_MIDLE, ®s->MIISR))
2366 * enable_mii_autopoll - turn on autopolling
2367 * @regs: velocity registers
2369 * Enable the MII link status autopoll feature on the Velocity
2370 * hardware. Wait for it to enable.
2373 static void enable_mii_autopoll(struct mac_regs __iomem * regs)
2377 writeb(0, &(regs->MIICR));
2378 writeb(MIIADR_SWMPL, ®s->MIIADR);
2380 for (ii = 0; ii < W_MAX_TIMEOUT; ii++) {
2382 if (BYTE_REG_BITS_IS_ON(MIISR_MIDLE, ®s->MIISR))
2386 writeb(MIICR_MAUTO, ®s->MIICR);
2388 for (ii = 0; ii < W_MAX_TIMEOUT; ii++) {
2390 if (!BYTE_REG_BITS_IS_ON(MIISR_MIDLE, ®s->MIISR))
2397 * velocity_mii_read - read MII data
2398 * @regs: velocity registers
2399 * @index: MII register index
2400 * @data: buffer for received data
2402 * Perform a single read of an MII 16bit register. Returns zero
2403 * on success or -ETIMEDOUT if the PHY did not respond.
2406 static int velocity_mii_read(struct mac_regs __iomem *regs, u8 index, u16 *data)
2411 * Disable MIICR_MAUTO, so that mii addr can be set normally
2413 safe_disable_mii_autopoll(regs);
2415 writeb(index, ®s->MIIADR);
2417 BYTE_REG_BITS_ON(MIICR_RCMD, ®s->MIICR);
2419 for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
2420 if (!(readb(®s->MIICR) & MIICR_RCMD))
2424 *data = readw(®s->MIIDATA);
2426 enable_mii_autopoll(regs);
2427 if (ww == W_MAX_TIMEOUT)
2433 * velocity_mii_write - write MII data
2434 * @regs: velocity registers
2435 * @index: MII register index
2436 * @data: 16bit data for the MII register
2438 * Perform a single write to an MII 16bit register. Returns zero
2439 * on success or -ETIMEDOUT if the PHY did not respond.
2442 static int velocity_mii_write(struct mac_regs __iomem *regs, u8 mii_addr, u16 data)
2447 * Disable MIICR_MAUTO, so that mii addr can be set normally
2449 safe_disable_mii_autopoll(regs);
2451 /* MII reg offset */
2452 writeb(mii_addr, ®s->MIIADR);
2454 writew(data, ®s->MIIDATA);
2456 /* turn on MIICR_WCMD */
2457 BYTE_REG_BITS_ON(MIICR_WCMD, ®s->MIICR);
2459 /* W_MAX_TIMEOUT is the timeout period */
2460 for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
2462 if (!(readb(®s->MIICR) & MIICR_WCMD))
2465 enable_mii_autopoll(regs);
2467 if (ww == W_MAX_TIMEOUT)
2473 * velocity_get_opt_media_mode - get media selection
2474 * @vptr: velocity adapter
2476 * Get the media mode stored in EEPROM or module options and load
2477 * mii_status accordingly. The requested link state information
2481 static u32 velocity_get_opt_media_mode(struct velocity_info *vptr)
2485 switch (vptr->options.spd_dpx) {
2487 status = VELOCITY_AUTONEG_ENABLE;
2489 case SPD_DPX_100_FULL:
2490 status = VELOCITY_SPEED_100 | VELOCITY_DUPLEX_FULL;
2492 case SPD_DPX_10_FULL:
2493 status = VELOCITY_SPEED_10 | VELOCITY_DUPLEX_FULL;
2495 case SPD_DPX_100_HALF:
2496 status = VELOCITY_SPEED_100;
2498 case SPD_DPX_10_HALF:
2499 status = VELOCITY_SPEED_10;
2502 vptr->mii_status = status;
2507 * mii_set_auto_on - autonegotiate on
2510 * Enable autonegotation on this interface
2513 static void mii_set_auto_on(struct velocity_info *vptr)
2515 if (MII_REG_BITS_IS_ON(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs))
2516 MII_REG_BITS_ON(BMCR_REAUTO, MII_REG_BMCR, vptr->mac_regs);
2518 MII_REG_BITS_ON(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs);
2523 static void mii_set_auto_off(struct velocity_info * vptr)
2525 MII_REG_BITS_OFF(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs);
2530 * set_mii_flow_control - flow control setup
2531 * @vptr: velocity interface
2533 * Set up the flow control on this interface according to
2534 * the supplied user/eeprom options.
2537 static void set_mii_flow_control(struct velocity_info *vptr)
2539 /*Enable or Disable PAUSE in ANAR */
2540 switch (vptr->options.flow_cntl) {
2542 MII_REG_BITS_OFF(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs);
2543 MII_REG_BITS_ON(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs);
2547 MII_REG_BITS_ON(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs);
2548 MII_REG_BITS_ON(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs);
2551 case FLOW_CNTL_TX_RX:
2552 MII_REG_BITS_ON(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs);
2553 MII_REG_BITS_ON(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs);
2556 case FLOW_CNTL_DISABLE:
2557 MII_REG_BITS_OFF(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs);
2558 MII_REG_BITS_OFF(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs);
2566 * velocity_set_media_mode - set media mode
2567 * @mii_status: old MII link state
2569 * Check the media link state and configure the flow control
2570 * PHY and also velocity hardware setup accordingly. In particular
2571 * we need to set up CD polling and frame bursting.
2574 static int velocity_set_media_mode(struct velocity_info *vptr, u32 mii_status)
2577 struct mac_regs __iomem * regs = vptr->mac_regs;
2579 vptr->mii_status = mii_check_media_mode(vptr->mac_regs);
2580 curr_status = vptr->mii_status & (~VELOCITY_LINK_FAIL);
2582 /* Set mii link status */
2583 set_mii_flow_control(vptr);
2586 Check if new status is consisent with current status
2587 if (((mii_status & curr_status) & VELOCITY_AUTONEG_ENABLE)
2588 || (mii_status==curr_status)) {
2589 vptr->mii_status=mii_check_media_mode(vptr->mac_regs);
2590 vptr->mii_status=check_connection_type(vptr->mac_regs);
2591 VELOCITY_PRT(MSG_LEVEL_INFO, "Velocity link no change\n");
2596 if (PHYID_GET_PHY_ID(vptr->phy_id) == PHYID_CICADA_CS8201) {
2597 MII_REG_BITS_ON(AUXCR_MDPPS, MII_REG_AUXCR, vptr->mac_regs);
2601 * If connection type is AUTO
2603 if (mii_status & VELOCITY_AUTONEG_ENABLE) {
2604 VELOCITY_PRT(MSG_LEVEL_INFO, "Velocity is AUTO mode\n");
2605 /* clear force MAC mode bit */
2606 BYTE_REG_BITS_OFF(CHIPGCR_FCMODE, ®s->CHIPGCR);
2607 /* set duplex mode of MAC according to duplex mode of MII */
2608 MII_REG_BITS_ON(ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10, MII_REG_ANAR, vptr->mac_regs);
2609 MII_REG_BITS_ON(G1000CR_1000FD | G1000CR_1000, MII_REG_G1000CR, vptr->mac_regs);
2610 MII_REG_BITS_ON(BMCR_SPEED1G, MII_REG_BMCR, vptr->mac_regs);
2612 /* enable AUTO-NEGO mode */
2613 mii_set_auto_on(vptr);
2619 * 1. if it's 3119, disable frame bursting in halfduplex mode
2620 * and enable it in fullduplex mode
2621 * 2. set correct MII/GMII and half/full duplex mode in CHIPGCR
2622 * 3. only enable CD heart beat counter in 10HD mode
2625 /* set force MAC mode bit */
2626 BYTE_REG_BITS_ON(CHIPGCR_FCMODE, ®s->CHIPGCR);
2628 CHIPGCR = readb(®s->CHIPGCR);
2629 CHIPGCR &= ~CHIPGCR_FCGMII;
2631 if (mii_status & VELOCITY_DUPLEX_FULL) {
2632 CHIPGCR |= CHIPGCR_FCFDX;
2633 writeb(CHIPGCR, ®s->CHIPGCR);
2634 VELOCITY_PRT(MSG_LEVEL_INFO, "set Velocity to forced full mode\n");
2635 if (vptr->rev_id < REV_ID_VT3216_A0)
2636 BYTE_REG_BITS_OFF(TCR_TB2BDIS, ®s->TCR);
2638 CHIPGCR &= ~CHIPGCR_FCFDX;
2639 VELOCITY_PRT(MSG_LEVEL_INFO, "set Velocity to forced half mode\n");
2640 writeb(CHIPGCR, ®s->CHIPGCR);
2641 if (vptr->rev_id < REV_ID_VT3216_A0)
2642 BYTE_REG_BITS_ON(TCR_TB2BDIS, ®s->TCR);
2645 MII_REG_BITS_OFF(G1000CR_1000FD | G1000CR_1000, MII_REG_G1000CR, vptr->mac_regs);
2647 if (!(mii_status & VELOCITY_DUPLEX_FULL) && (mii_status & VELOCITY_SPEED_10)) {
2648 BYTE_REG_BITS_OFF(TESTCFG_HBDIS, ®s->TESTCFG);
2650 BYTE_REG_BITS_ON(TESTCFG_HBDIS, ®s->TESTCFG);
2652 /* MII_REG_BITS_OFF(BMCR_SPEED1G, MII_REG_BMCR, vptr->mac_regs); */
2653 velocity_mii_read(vptr->mac_regs, MII_REG_ANAR, &ANAR);
2654 ANAR &= (~(ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10));
2655 if (mii_status & VELOCITY_SPEED_100) {
2656 if (mii_status & VELOCITY_DUPLEX_FULL)
2661 if (mii_status & VELOCITY_DUPLEX_FULL)
2666 velocity_mii_write(vptr->mac_regs, MII_REG_ANAR, ANAR);
2667 /* enable AUTO-NEGO mode */
2668 mii_set_auto_on(vptr);
2669 /* MII_REG_BITS_ON(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs); */
2671 /* vptr->mii_status=mii_check_media_mode(vptr->mac_regs); */
2672 /* vptr->mii_status=check_connection_type(vptr->mac_regs); */
2673 return VELOCITY_LINK_CHANGE;
2677 * mii_check_media_mode - check media state
2678 * @regs: velocity registers
2680 * Check the current MII status and determine the link status
2684 static u32 mii_check_media_mode(struct mac_regs __iomem * regs)
2689 if (!MII_REG_BITS_IS_ON(BMSR_LNK, MII_REG_BMSR, regs))
2690 status |= VELOCITY_LINK_FAIL;
2692 if (MII_REG_BITS_IS_ON(G1000CR_1000FD, MII_REG_G1000CR, regs))
2693 status |= VELOCITY_SPEED_1000 | VELOCITY_DUPLEX_FULL;
2694 else if (MII_REG_BITS_IS_ON(G1000CR_1000, MII_REG_G1000CR, regs))
2695 status |= (VELOCITY_SPEED_1000);
2697 velocity_mii_read(regs, MII_REG_ANAR, &ANAR);
2698 if (ANAR & ANAR_TXFD)
2699 status |= (VELOCITY_SPEED_100 | VELOCITY_DUPLEX_FULL);
2700 else if (ANAR & ANAR_TX)
2701 status |= VELOCITY_SPEED_100;
2702 else if (ANAR & ANAR_10FD)
2703 status |= (VELOCITY_SPEED_10 | VELOCITY_DUPLEX_FULL);
2705 status |= (VELOCITY_SPEED_10);
2708 if (MII_REG_BITS_IS_ON(BMCR_AUTO, MII_REG_BMCR, regs)) {
2709 velocity_mii_read(regs, MII_REG_ANAR, &ANAR);
2710 if ((ANAR & (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10))
2711 == (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10)) {
2712 if (MII_REG_BITS_IS_ON(G1000CR_1000 | G1000CR_1000FD, MII_REG_G1000CR, regs))
2713 status |= VELOCITY_AUTONEG_ENABLE;
2720 static u32 check_connection_type(struct mac_regs __iomem * regs)
2725 PHYSR0 = readb(®s->PHYSR0);
2728 if (!(PHYSR0 & PHYSR0_LINKGD))
2729 status|=VELOCITY_LINK_FAIL;
2732 if (PHYSR0 & PHYSR0_FDPX)
2733 status |= VELOCITY_DUPLEX_FULL;
2735 if (PHYSR0 & PHYSR0_SPDG)
2736 status |= VELOCITY_SPEED_1000;
2737 if (PHYSR0 & PHYSR0_SPD10)
2738 status |= VELOCITY_SPEED_10;
2740 status |= VELOCITY_SPEED_100;
2742 if (MII_REG_BITS_IS_ON(BMCR_AUTO, MII_REG_BMCR, regs)) {
2743 velocity_mii_read(regs, MII_REG_ANAR, &ANAR);
2744 if ((ANAR & (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10))
2745 == (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10)) {
2746 if (MII_REG_BITS_IS_ON(G1000CR_1000 | G1000CR_1000FD, MII_REG_G1000CR, regs))
2747 status |= VELOCITY_AUTONEG_ENABLE;
2755 * enable_flow_control_ability - flow control
2756 * @vptr: veloity to configure
2758 * Set up flow control according to the flow control options
2759 * determined by the eeprom/configuration.
2762 static void enable_flow_control_ability(struct velocity_info *vptr)
2765 struct mac_regs __iomem * regs = vptr->mac_regs;
2767 switch (vptr->options.flow_cntl) {
2769 case FLOW_CNTL_DEFAULT:
2770 if (BYTE_REG_BITS_IS_ON(PHYSR0_RXFLC, ®s->PHYSR0))
2771 writel(CR0_FDXRFCEN, ®s->CR0Set);
2773 writel(CR0_FDXRFCEN, ®s->CR0Clr);
2775 if (BYTE_REG_BITS_IS_ON(PHYSR0_TXFLC, ®s->PHYSR0))
2776 writel(CR0_FDXTFCEN, ®s->CR0Set);
2778 writel(CR0_FDXTFCEN, ®s->CR0Clr);
2782 writel(CR0_FDXTFCEN, ®s->CR0Set);
2783 writel(CR0_FDXRFCEN, ®s->CR0Clr);
2787 writel(CR0_FDXRFCEN, ®s->CR0Set);
2788 writel(CR0_FDXTFCEN, ®s->CR0Clr);
2791 case FLOW_CNTL_TX_RX:
2792 writel(CR0_FDXTFCEN, ®s->CR0Set);
2793 writel(CR0_FDXRFCEN, ®s->CR0Set);
2796 case FLOW_CNTL_DISABLE:
2797 writel(CR0_FDXRFCEN, ®s->CR0Clr);
2798 writel(CR0_FDXTFCEN, ®s->CR0Clr);
2809 * velocity_ethtool_up - pre hook for ethtool
2810 * @dev: network device
2812 * Called before an ethtool operation. We need to make sure the
2813 * chip is out of D3 state before we poke at it.
2816 static int velocity_ethtool_up(struct net_device *dev)
2818 struct velocity_info *vptr = dev->priv;
2819 if (!netif_running(dev))
2820 pci_set_power_state(vptr->pdev, PCI_D0);
2825 * velocity_ethtool_down - post hook for ethtool
2826 * @dev: network device
2828 * Called after an ethtool operation. Restore the chip back to D3
2829 * state if it isn't running.
2832 static void velocity_ethtool_down(struct net_device *dev)
2834 struct velocity_info *vptr = dev->priv;
2835 if (!netif_running(dev))
2836 pci_set_power_state(vptr->pdev, PCI_D3hot);
2839 static int velocity_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
2841 struct velocity_info *vptr = dev->priv;
2842 struct mac_regs __iomem * regs = vptr->mac_regs;
2844 status = check_connection_type(vptr->mac_regs);
2846 cmd->supported = SUPPORTED_TP | SUPPORTED_Autoneg | SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full | SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full | SUPPORTED_1000baseT_Half | SUPPORTED_1000baseT_Full;
2847 if (status & VELOCITY_SPEED_100)
2848 cmd->speed = SPEED_100;
2850 cmd->speed = SPEED_10;
2851 cmd->autoneg = (status & VELOCITY_AUTONEG_ENABLE) ? AUTONEG_ENABLE : AUTONEG_DISABLE;
2852 cmd->port = PORT_TP;
2853 cmd->transceiver = XCVR_INTERNAL;
2854 cmd->phy_address = readb(®s->MIIADR) & 0x1F;
2856 if (status & VELOCITY_DUPLEX_FULL)
2857 cmd->duplex = DUPLEX_FULL;
2859 cmd->duplex = DUPLEX_HALF;
2864 static int velocity_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
2866 struct velocity_info *vptr = dev->priv;
2871 curr_status = check_connection_type(vptr->mac_regs);
2872 curr_status &= (~VELOCITY_LINK_FAIL);
2874 new_status |= ((cmd->autoneg) ? VELOCITY_AUTONEG_ENABLE : 0);
2875 new_status |= ((cmd->speed == SPEED_100) ? VELOCITY_SPEED_100 : 0);
2876 new_status |= ((cmd->speed == SPEED_10) ? VELOCITY_SPEED_10 : 0);
2877 new_status |= ((cmd->duplex == DUPLEX_FULL) ? VELOCITY_DUPLEX_FULL : 0);
2879 if ((new_status & VELOCITY_AUTONEG_ENABLE) && (new_status != (curr_status | VELOCITY_AUTONEG_ENABLE)))
2882 velocity_set_media_mode(vptr, new_status);
2887 static u32 velocity_get_link(struct net_device *dev)
2889 struct velocity_info *vptr = dev->priv;
2890 struct mac_regs __iomem * regs = vptr->mac_regs;
2891 return BYTE_REG_BITS_IS_ON(PHYSR0_LINKGD, ®s->PHYSR0) ? 0 : 1;
2894 static void velocity_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
2896 struct velocity_info *vptr = dev->priv;
2897 strcpy(info->driver, VELOCITY_NAME);
2898 strcpy(info->version, VELOCITY_VERSION);
2899 strcpy(info->bus_info, pci_name(vptr->pdev));
2902 static void velocity_ethtool_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
2904 struct velocity_info *vptr = dev->priv;
2905 wol->supported = WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_ARP;
2906 wol->wolopts |= WAKE_MAGIC;
2908 if (vptr->wol_opts & VELOCITY_WOL_PHY)
2909 wol.wolopts|=WAKE_PHY;
2911 if (vptr->wol_opts & VELOCITY_WOL_UCAST)
2912 wol->wolopts |= WAKE_UCAST;
2913 if (vptr->wol_opts & VELOCITY_WOL_ARP)
2914 wol->wolopts |= WAKE_ARP;
2915 memcpy(&wol->sopass, vptr->wol_passwd, 6);
2918 static int velocity_ethtool_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
2920 struct velocity_info *vptr = dev->priv;
2922 if (!(wol->wolopts & (WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_ARP)))
2924 vptr->wol_opts = VELOCITY_WOL_MAGIC;
2927 if (wol.wolopts & WAKE_PHY) {
2928 vptr->wol_opts|=VELOCITY_WOL_PHY;
2929 vptr->flags |=VELOCITY_FLAGS_WOL_ENABLED;
2933 if (wol->wolopts & WAKE_MAGIC) {
2934 vptr->wol_opts |= VELOCITY_WOL_MAGIC;
2935 vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED;
2937 if (wol->wolopts & WAKE_UCAST) {
2938 vptr->wol_opts |= VELOCITY_WOL_UCAST;
2939 vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED;
2941 if (wol->wolopts & WAKE_ARP) {
2942 vptr->wol_opts |= VELOCITY_WOL_ARP;
2943 vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED;
2945 memcpy(vptr->wol_passwd, wol->sopass, 6);
2949 static u32 velocity_get_msglevel(struct net_device *dev)
2954 static void velocity_set_msglevel(struct net_device *dev, u32 value)
2959 static struct ethtool_ops velocity_ethtool_ops = {
2960 .get_settings = velocity_get_settings,
2961 .set_settings = velocity_set_settings,
2962 .get_drvinfo = velocity_get_drvinfo,
2963 .get_wol = velocity_ethtool_get_wol,
2964 .set_wol = velocity_ethtool_set_wol,
2965 .get_msglevel = velocity_get_msglevel,
2966 .set_msglevel = velocity_set_msglevel,
2967 .get_link = velocity_get_link,
2968 .begin = velocity_ethtool_up,
2969 .complete = velocity_ethtool_down
2973 * velocity_mii_ioctl - MII ioctl handler
2974 * @dev: network device
2975 * @ifr: the ifreq block for the ioctl
2978 * Process MII requests made via ioctl from the network layer. These
2979 * are used by tools like kudzu to interrogate the link state of the
2983 static int velocity_mii_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
2985 struct velocity_info *vptr = dev->priv;
2986 struct mac_regs __iomem * regs = vptr->mac_regs;
2987 unsigned long flags;
2988 struct mii_ioctl_data *miidata = if_mii(ifr);
2993 miidata->phy_id = readb(®s->MIIADR) & 0x1f;
2996 if (!capable(CAP_NET_ADMIN))
2998 if(velocity_mii_read(vptr->mac_regs, miidata->reg_num & 0x1f, &(miidata->val_out)) < 0)
3002 if (!capable(CAP_NET_ADMIN))
3004 spin_lock_irqsave(&vptr->lock, flags);
3005 err = velocity_mii_write(vptr->mac_regs, miidata->reg_num & 0x1f, miidata->val_in);
3006 spin_unlock_irqrestore(&vptr->lock, flags);
3007 check_connection_type(vptr->mac_regs);
3020 * velocity_save_context - save registers
3022 * @context: buffer for stored context
3024 * Retrieve the current configuration from the velocity hardware
3025 * and stash it in the context structure, for use by the context
3026 * restore functions. This allows us to save things we need across
3030 static void velocity_save_context(struct velocity_info *vptr, struct velocity_context * context)
3032 struct mac_regs __iomem * regs = vptr->mac_regs;
3034 u8 __iomem *ptr = (u8 __iomem *)regs;
3036 for (i = MAC_REG_PAR; i < MAC_REG_CR0_CLR; i += 4)
3037 *((u32 *) (context->mac_reg + i)) = readl(ptr + i);
3039 for (i = MAC_REG_MAR; i < MAC_REG_TDCSR_CLR; i += 4)
3040 *((u32 *) (context->mac_reg + i)) = readl(ptr + i);
3042 for (i = MAC_REG_RDBASE_LO; i < MAC_REG_FIFO_TEST0; i += 4)
3043 *((u32 *) (context->mac_reg + i)) = readl(ptr + i);
3048 * velocity_restore_context - restore registers
3050 * @context: buffer for stored context
3052 * Reload the register configuration from the velocity context
3053 * created by velocity_save_context.
3056 static void velocity_restore_context(struct velocity_info *vptr, struct velocity_context *context)
3058 struct mac_regs __iomem * regs = vptr->mac_regs;
3060 u8 __iomem *ptr = (u8 __iomem *)regs;
3062 for (i = MAC_REG_PAR; i < MAC_REG_CR0_SET; i += 4) {
3063 writel(*((u32 *) (context->mac_reg + i)), ptr + i);
3067 for (i = MAC_REG_CR1_SET; i < MAC_REG_CR0_CLR; i++) {
3069 writeb(~(*((u8 *) (context->mac_reg + i))), ptr + i + 4);
3071 writeb(*((u8 *) (context->mac_reg + i)), ptr + i);
3074 for (i = MAC_REG_MAR; i < MAC_REG_IMR; i += 4) {
3075 writel(*((u32 *) (context->mac_reg + i)), ptr + i);
3078 for (i = MAC_REG_RDBASE_LO; i < MAC_REG_FIFO_TEST0; i += 4) {
3079 writel(*((u32 *) (context->mac_reg + i)), ptr + i);
3082 for (i = MAC_REG_TDCSR_SET; i <= MAC_REG_RDCSR_SET; i++) {
3083 writeb(*((u8 *) (context->mac_reg + i)), ptr + i);
3089 * wol_calc_crc - WOL CRC
3090 * @pattern: data pattern
3091 * @mask_pattern: mask
3093 * Compute the wake on lan crc hashes for the packet header
3094 * we are interested in.
3097 static u16 wol_calc_crc(int size, u8 * pattern, u8 *mask_pattern)
3103 for (i = 0; i < size; i++) {
3104 mask = mask_pattern[i];
3106 /* Skip this loop if the mask equals to zero */
3110 for (j = 0; j < 8; j++) {
3111 if ((mask & 0x01) == 0) {
3116 crc = crc_ccitt(crc, &(pattern[i * 8 + j]), 1);
3119 /* Finally, invert the result once to get the correct data */
3121 return bitreverse(crc) >> 16;
3125 * velocity_set_wol - set up for wake on lan
3126 * @vptr: velocity to set WOL status on
3128 * Set a card up for wake on lan either by unicast or by
3131 * FIXME: check static buffer is safe here
3134 static int velocity_set_wol(struct velocity_info *vptr)
3136 struct mac_regs __iomem * regs = vptr->mac_regs;
3140 static u32 mask_pattern[2][4] = {
3141 {0x00203000, 0x000003C0, 0x00000000, 0x0000000}, /* ARP */
3142 {0xfffff000, 0xffffffff, 0xffffffff, 0x000ffff} /* Magic Packet */
3145 writew(0xFFFF, ®s->WOLCRClr);
3146 writeb(WOLCFG_SAB | WOLCFG_SAM, ®s->WOLCFGSet);
3147 writew(WOLCR_MAGIC_EN, ®s->WOLCRSet);
3150 if (vptr->wol_opts & VELOCITY_WOL_PHY)
3151 writew((WOLCR_LINKON_EN|WOLCR_LINKOFF_EN), ®s->WOLCRSet);
3154 if (vptr->wol_opts & VELOCITY_WOL_UCAST) {
3155 writew(WOLCR_UNICAST_EN, ®s->WOLCRSet);
3158 if (vptr->wol_opts & VELOCITY_WOL_ARP) {
3159 struct arp_packet *arp = (struct arp_packet *) buf;
3161 memset(buf, 0, sizeof(struct arp_packet) + 7);
3163 for (i = 0; i < 4; i++)
3164 writel(mask_pattern[0][i], ®s->ByteMask[0][i]);
3166 arp->type = htons(ETH_P_ARP);
3167 arp->ar_op = htons(1);
3169 memcpy(arp->ar_tip, vptr->ip_addr, 4);
3171 crc = wol_calc_crc((sizeof(struct arp_packet) + 7) / 8, buf,
3172 (u8 *) & mask_pattern[0][0]);
3174 writew(crc, ®s->PatternCRC[0]);
3175 writew(WOLCR_ARP_EN, ®s->WOLCRSet);
3178 BYTE_REG_BITS_ON(PWCFG_WOLTYPE, ®s->PWCFGSet);
3179 BYTE_REG_BITS_ON(PWCFG_LEGACY_WOLEN, ®s->PWCFGSet);
3181 writew(0x0FFF, ®s->WOLSRClr);
3183 if (vptr->mii_status & VELOCITY_AUTONEG_ENABLE) {
3184 if (PHYID_GET_PHY_ID(vptr->phy_id) == PHYID_CICADA_CS8201)
3185 MII_REG_BITS_ON(AUXCR_MDPPS, MII_REG_AUXCR, vptr->mac_regs);
3187 MII_REG_BITS_OFF(G1000CR_1000FD | G1000CR_1000, MII_REG_G1000CR, vptr->mac_regs);
3190 if (vptr->mii_status & VELOCITY_SPEED_1000)
3191 MII_REG_BITS_ON(BMCR_REAUTO, MII_REG_BMCR, vptr->mac_regs);
3193 BYTE_REG_BITS_ON(CHIPGCR_FCMODE, ®s->CHIPGCR);
3197 GCR = readb(®s->CHIPGCR);
3198 GCR = (GCR & ~CHIPGCR_FCGMII) | CHIPGCR_FCFDX;
3199 writeb(GCR, ®s->CHIPGCR);
3202 BYTE_REG_BITS_OFF(ISR_PWEI, ®s->ISR);
3203 /* Turn on SWPTAG just before entering power mode */
3204 BYTE_REG_BITS_ON(STICKHW_SWPTAG, ®s->STICKHW);
3205 /* Go to bed ..... */
3206 BYTE_REG_BITS_ON((STICKHW_DS1 | STICKHW_DS0), ®s->STICKHW);
3211 static int velocity_suspend(struct pci_dev *pdev, pm_message_t state)
3213 struct net_device *dev = pci_get_drvdata(pdev);
3214 struct velocity_info *vptr = netdev_priv(dev);
3215 unsigned long flags;
3217 if(!netif_running(vptr->dev))
3220 netif_device_detach(vptr->dev);
3222 spin_lock_irqsave(&vptr->lock, flags);
3223 pci_save_state(pdev);
3225 if (vptr->flags & VELOCITY_FLAGS_WOL_ENABLED) {
3226 velocity_get_ip(vptr);
3227 velocity_save_context(vptr, &vptr->context);
3228 velocity_shutdown(vptr);
3229 velocity_set_wol(vptr);
3230 pci_enable_wake(pdev, 3, 1);
3231 pci_set_power_state(pdev, PCI_D3hot);
3233 velocity_save_context(vptr, &vptr->context);
3234 velocity_shutdown(vptr);
3235 pci_disable_device(pdev);
3236 pci_set_power_state(pdev, pci_choose_state(pdev, state));
3239 pci_set_power_state(pdev, pci_choose_state(pdev, state));
3241 spin_unlock_irqrestore(&vptr->lock, flags);
3245 static int velocity_resume(struct pci_dev *pdev)
3247 struct net_device *dev = pci_get_drvdata(pdev);
3248 struct velocity_info *vptr = netdev_priv(dev);
3249 unsigned long flags;
3252 if(!netif_running(vptr->dev))
3255 pci_set_power_state(pdev, PCI_D0);
3256 pci_enable_wake(pdev, 0, 0);
3257 pci_restore_state(pdev);
3259 mac_wol_reset(vptr->mac_regs);
3261 spin_lock_irqsave(&vptr->lock, flags);
3262 velocity_restore_context(vptr, &vptr->context);
3263 velocity_init_registers(vptr, VELOCITY_INIT_WOL);
3264 mac_disable_int(vptr->mac_regs);
3266 velocity_tx_srv(vptr, 0);
3268 for (i = 0; i < vptr->num_txq; i++) {
3269 if (vptr->td_used[i]) {
3270 mac_tx_queue_wake(vptr->mac_regs, i);
3274 mac_enable_int(vptr->mac_regs);
3275 spin_unlock_irqrestore(&vptr->lock, flags);
3276 netif_device_attach(vptr->dev);
3281 static int velocity_netdev_event(struct notifier_block *nb, unsigned long notification, void *ptr)
3283 struct in_ifaddr *ifa = (struct in_ifaddr *) ptr;
3286 struct net_device *dev = ifa->ifa_dev->dev;
3287 struct velocity_info *vptr;
3288 unsigned long flags;
3290 spin_lock_irqsave(&velocity_dev_list_lock, flags);
3291 list_for_each_entry(vptr, &velocity_dev_list, list) {
3292 if (vptr->dev == dev) {
3293 velocity_get_ip(vptr);
3297 spin_unlock_irqrestore(&velocity_dev_list_lock, flags);