2 * This code is derived from the VIA reference driver (copyright message
3 * below) provided to Red Hat by VIA Networking Technologies, Inc. for
4 * addition to the Linux kernel.
6 * The code has been merged into one source file, cleaned up to follow
7 * Linux coding style, ported to the Linux 2.6 kernel tree and cleaned
8 * for 64bit hardware platforms.
11 * rx_copybreak/alignment
15 * The changes are (c) Copyright 2004, Red Hat Inc. <alan@redhat.com>
16 * Additional fixes and clean up: Francois Romieu
18 * This source has not been verified for use in safety critical systems.
20 * Please direct queries about the revamped driver to the linux-kernel
25 * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
26 * All rights reserved.
28 * This software may be redistributed and/or modified under
29 * the terms of the GNU General Public License as published by the Free
30 * Software Foundation; either version 2 of the License, or
33 * This program is distributed in the hope that it will be useful, but
34 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
35 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
38 * Author: Chuang Liang-Shing, AJ Jiang
42 * MODULE_LICENSE("GPL");
47 #include <linux/module.h>
48 #include <linux/types.h>
49 #include <linux/init.h>
51 #include <linux/errno.h>
52 #include <linux/ioport.h>
53 #include <linux/pci.h>
54 #include <linux/kernel.h>
55 #include <linux/netdevice.h>
56 #include <linux/etherdevice.h>
57 #include <linux/skbuff.h>
58 #include <linux/delay.h>
59 #include <linux/timer.h>
60 #include <linux/slab.h>
61 #include <linux/interrupt.h>
62 #include <linux/string.h>
63 #include <linux/wait.h>
66 #include <asm/uaccess.h>
67 #include <linux/proc_fs.h>
68 #include <linux/inetdevice.h>
69 #include <linux/reboot.h>
70 #include <linux/ethtool.h>
71 #include <linux/mii.h>
73 #include <linux/if_arp.h>
74 #include <linux/if_vlan.h>
76 #include <linux/tcp.h>
77 #include <linux/udp.h>
78 #include <linux/crc-ccitt.h>
79 #include <linux/crc32.h>
81 #include "via-velocity.h"
84 static int velocity_nics = 0;
85 static int msglevel = MSG_LEVEL_INFO;
88 * mac_get_cam_mask - Read a CAM mask
89 * @regs: register block for this velocity
90 * @mask: buffer to store mask
92 * Fetch the mask bits of the selected CAM and store them into the
93 * provided mask buffer.
96 static void mac_get_cam_mask(struct mac_regs __iomem * regs, u8 * mask)
100 /* Select CAM mask */
101 BYTE_REG_BITS_SET(CAMCR_PS_CAM_MASK, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR);
103 writeb(0, ®s->CAMADDR);
106 for (i = 0; i < 8; i++)
107 *mask++ = readb(&(regs->MARCAM[i]));
110 writeb(0, ®s->CAMADDR);
113 BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR);
119 * mac_set_cam_mask - Set a CAM mask
120 * @regs: register block for this velocity
121 * @mask: CAM mask to load
123 * Store a new mask into a CAM
126 static void mac_set_cam_mask(struct mac_regs __iomem * regs, u8 * mask)
129 /* Select CAM mask */
130 BYTE_REG_BITS_SET(CAMCR_PS_CAM_MASK, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR);
132 writeb(CAMADDR_CAMEN, ®s->CAMADDR);
134 for (i = 0; i < 8; i++) {
135 writeb(*mask++, &(regs->MARCAM[i]));
138 writeb(0, ®s->CAMADDR);
141 BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR);
144 static void mac_set_vlan_cam_mask(struct mac_regs __iomem * regs, u8 * mask)
147 /* Select CAM mask */
148 BYTE_REG_BITS_SET(CAMCR_PS_CAM_MASK, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR);
150 writeb(CAMADDR_CAMEN | CAMADDR_VCAMSL, ®s->CAMADDR);
152 for (i = 0; i < 8; i++) {
153 writeb(*mask++, &(regs->MARCAM[i]));
156 writeb(0, ®s->CAMADDR);
159 BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR);
163 * mac_set_cam - set CAM data
164 * @regs: register block of this velocity
166 * @addr: 2 or 6 bytes of CAM data
168 * Load an address or vlan tag into a CAM
171 static void mac_set_cam(struct mac_regs __iomem * regs, int idx, const u8 *addr)
175 /* Select CAM mask */
176 BYTE_REG_BITS_SET(CAMCR_PS_CAM_DATA, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR);
180 writeb(CAMADDR_CAMEN | idx, ®s->CAMADDR);
182 for (i = 0; i < 6; i++) {
183 writeb(*addr++, &(regs->MARCAM[i]));
185 BYTE_REG_BITS_ON(CAMCR_CAMWR, ®s->CAMCR);
189 writeb(0, ®s->CAMADDR);
192 BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR);
195 static void mac_set_vlan_cam(struct mac_regs __iomem * regs, int idx,
199 /* Select CAM mask */
200 BYTE_REG_BITS_SET(CAMCR_PS_CAM_DATA, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR);
204 writeb(CAMADDR_CAMEN | CAMADDR_VCAMSL | idx, ®s->CAMADDR);
205 writew(*((u16 *) addr), ®s->MARCAM[0]);
207 BYTE_REG_BITS_ON(CAMCR_CAMWR, ®s->CAMCR);
211 writeb(0, ®s->CAMADDR);
214 BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR);
219 * mac_wol_reset - reset WOL after exiting low power
220 * @regs: register block of this velocity
222 * Called after we drop out of wake on lan mode in order to
223 * reset the Wake on lan features. This function doesn't restore
224 * the rest of the logic from the result of sleep/wakeup
227 static void mac_wol_reset(struct mac_regs __iomem * regs)
230 /* Turn off SWPTAG right after leaving power mode */
231 BYTE_REG_BITS_OFF(STICKHW_SWPTAG, ®s->STICKHW);
232 /* clear sticky bits */
233 BYTE_REG_BITS_OFF((STICKHW_DS1 | STICKHW_DS0), ®s->STICKHW);
235 BYTE_REG_BITS_OFF(CHIPGCR_FCGMII, ®s->CHIPGCR);
236 BYTE_REG_BITS_OFF(CHIPGCR_FCMODE, ®s->CHIPGCR);
237 /* disable force PME-enable */
238 writeb(WOLCFG_PMEOVR, ®s->WOLCFGClr);
239 /* disable power-event config bit */
240 writew(0xFFFF, ®s->WOLCRClr);
241 /* clear power status */
242 writew(0xFFFF, ®s->WOLSRClr);
245 static int velocity_mii_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd);
246 static const struct ethtool_ops velocity_ethtool_ops;
249 Define module options
252 MODULE_AUTHOR("VIA Networking Technologies, Inc.");
253 MODULE_LICENSE("GPL");
254 MODULE_DESCRIPTION("VIA Networking Velocity Family Gigabit Ethernet Adapter Driver");
256 #define VELOCITY_PARAM(N,D) \
257 static int N[MAX_UNITS]=OPTION_DEFAULT;\
258 module_param_array(N, int, NULL, 0); \
259 MODULE_PARM_DESC(N, D);
261 #define RX_DESC_MIN 64
262 #define RX_DESC_MAX 255
263 #define RX_DESC_DEF 64
264 VELOCITY_PARAM(RxDescriptors, "Number of receive descriptors");
266 #define TX_DESC_MIN 16
267 #define TX_DESC_MAX 256
268 #define TX_DESC_DEF 64
269 VELOCITY_PARAM(TxDescriptors, "Number of transmit descriptors");
271 #define RX_THRESH_MIN 0
272 #define RX_THRESH_MAX 3
273 #define RX_THRESH_DEF 0
274 /* rx_thresh[] is used for controlling the receive fifo threshold.
275 0: indicate the rxfifo threshold is 128 bytes.
276 1: indicate the rxfifo threshold is 512 bytes.
277 2: indicate the rxfifo threshold is 1024 bytes.
278 3: indicate the rxfifo threshold is store & forward.
280 VELOCITY_PARAM(rx_thresh, "Receive fifo threshold");
282 #define DMA_LENGTH_MIN 0
283 #define DMA_LENGTH_MAX 7
284 #define DMA_LENGTH_DEF 0
286 /* DMA_length[] is used for controlling the DMA length
293 6: SF(flush till emply)
294 7: SF(flush till emply)
296 VELOCITY_PARAM(DMA_length, "DMA length");
298 #define IP_ALIG_DEF 0
299 /* IP_byte_align[] is used for IP header DWORD byte aligned
300 0: indicate the IP header won't be DWORD byte aligned.(Default) .
301 1: indicate the IP header will be DWORD byte aligned.
302 In some enviroment, the IP header should be DWORD byte aligned,
303 or the packet will be droped when we receive it. (eg: IPVS)
305 VELOCITY_PARAM(IP_byte_align, "Enable IP header dword aligned");
307 #define TX_CSUM_DEF 1
308 /* txcsum_offload[] is used for setting the checksum offload ability of NIC.
309 (We only support RX checksum offload now)
310 0: disable csum_offload[checksum offload
311 1: enable checksum offload. (Default)
313 VELOCITY_PARAM(txcsum_offload, "Enable transmit packet checksum offload");
315 #define FLOW_CNTL_DEF 1
316 #define FLOW_CNTL_MIN 1
317 #define FLOW_CNTL_MAX 5
319 /* flow_control[] is used for setting the flow control ability of NIC.
320 1: hardware deafult - AUTO (default). Use Hardware default value in ANAR.
321 2: enable TX flow control.
322 3: enable RX flow control.
323 4: enable RX/TX flow control.
326 VELOCITY_PARAM(flow_control, "Enable flow control ability");
328 #define MED_LNK_DEF 0
329 #define MED_LNK_MIN 0
330 #define MED_LNK_MAX 4
331 /* speed_duplex[] is used for setting the speed and duplex mode of NIC.
332 0: indicate autonegotiation for both speed and duplex mode
333 1: indicate 100Mbps half duplex mode
334 2: indicate 100Mbps full duplex mode
335 3: indicate 10Mbps half duplex mode
336 4: indicate 10Mbps full duplex mode
339 if EEPROM have been set to the force mode, this option is ignored
342 VELOCITY_PARAM(speed_duplex, "Setting the speed and duplex mode");
344 #define VAL_PKT_LEN_DEF 0
345 /* ValPktLen[] is used for setting the checksum offload ability of NIC.
346 0: Receive frame with invalid layer 2 length (Default)
347 1: Drop frame with invalid layer 2 length
349 VELOCITY_PARAM(ValPktLen, "Receiving or Drop invalid 802.3 frame");
351 #define WOL_OPT_DEF 0
352 #define WOL_OPT_MIN 0
353 #define WOL_OPT_MAX 7
354 /* wol_opts[] is used for controlling wake on lan behavior.
355 0: Wake up if recevied a magic packet. (Default)
356 1: Wake up if link status is on/off.
357 2: Wake up if recevied an arp packet.
358 4: Wake up if recevied any unicast packet.
359 Those value can be sumed up to support more than one option.
361 VELOCITY_PARAM(wol_opts, "Wake On Lan options");
363 #define INT_WORKS_DEF 20
364 #define INT_WORKS_MIN 10
365 #define INT_WORKS_MAX 64
367 VELOCITY_PARAM(int_works, "Number of packets per interrupt services");
369 static int rx_copybreak = 200;
370 module_param(rx_copybreak, int, 0644);
371 MODULE_PARM_DESC(rx_copybreak, "Copy breakpoint for copy-only-tiny-frames");
373 static void velocity_init_info(struct pci_dev *pdev, struct velocity_info *vptr,
374 const struct velocity_info_tbl *info);
375 static int velocity_get_pci_info(struct velocity_info *, struct pci_dev *pdev);
376 static void velocity_print_info(struct velocity_info *vptr);
377 static int velocity_open(struct net_device *dev);
378 static int velocity_change_mtu(struct net_device *dev, int mtu);
379 static int velocity_xmit(struct sk_buff *skb, struct net_device *dev);
380 static int velocity_intr(int irq, void *dev_instance);
381 static void velocity_set_multi(struct net_device *dev);
382 static struct net_device_stats *velocity_get_stats(struct net_device *dev);
383 static int velocity_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
384 static int velocity_close(struct net_device *dev);
385 static int velocity_receive_frame(struct velocity_info *, int idx);
386 static int velocity_alloc_rx_buf(struct velocity_info *, int idx);
387 static void velocity_free_rd_ring(struct velocity_info *vptr);
388 static void velocity_free_tx_buf(struct velocity_info *vptr, struct velocity_td_info *);
389 static int velocity_soft_reset(struct velocity_info *vptr);
390 static void mii_init(struct velocity_info *vptr, u32 mii_status);
391 static u32 velocity_get_link(struct net_device *dev);
392 static u32 velocity_get_opt_media_mode(struct velocity_info *vptr);
393 static void velocity_print_link_status(struct velocity_info *vptr);
394 static void safe_disable_mii_autopoll(struct mac_regs __iomem * regs);
395 static void velocity_shutdown(struct velocity_info *vptr);
396 static void enable_flow_control_ability(struct velocity_info *vptr);
397 static void enable_mii_autopoll(struct mac_regs __iomem * regs);
398 static int velocity_mii_read(struct mac_regs __iomem *, u8 byIdx, u16 * pdata);
399 static int velocity_mii_write(struct mac_regs __iomem *, u8 byMiiAddr, u16 data);
400 static u32 mii_check_media_mode(struct mac_regs __iomem * regs);
401 static u32 check_connection_type(struct mac_regs __iomem * regs);
402 static int velocity_set_media_mode(struct velocity_info *vptr, u32 mii_status);
406 static int velocity_suspend(struct pci_dev *pdev, pm_message_t state);
407 static int velocity_resume(struct pci_dev *pdev);
409 static DEFINE_SPINLOCK(velocity_dev_list_lock);
410 static LIST_HEAD(velocity_dev_list);
414 #if defined(CONFIG_PM) && defined(CONFIG_INET)
416 static int velocity_netdev_event(struct notifier_block *nb, unsigned long notification, void *ptr);
418 static struct notifier_block velocity_inetaddr_notifier = {
419 .notifier_call = velocity_netdev_event,
422 static void velocity_register_notifier(void)
424 register_inetaddr_notifier(&velocity_inetaddr_notifier);
427 static void velocity_unregister_notifier(void)
429 unregister_inetaddr_notifier(&velocity_inetaddr_notifier);
434 #define velocity_register_notifier() do {} while (0)
435 #define velocity_unregister_notifier() do {} while (0)
440 * Internal board variants. At the moment we have only one
443 static struct velocity_info_tbl chip_info_table[] = {
444 {CHIP_TYPE_VT6110, "VIA Networking Velocity Family Gigabit Ethernet Adapter", 1, 0x00FFFFFFUL},
449 * Describe the PCI device identifiers that we support in this
450 * device driver. Used for hotplug autoloading.
453 static const struct pci_device_id velocity_id_table[] __devinitdata = {
454 { PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_612X) },
458 MODULE_DEVICE_TABLE(pci, velocity_id_table);
461 * get_chip_name - identifier to name
462 * @id: chip identifier
464 * Given a chip identifier return a suitable description. Returns
465 * a pointer a static string valid while the driver is loaded.
468 static const char __devinit *get_chip_name(enum chip_type chip_id)
471 for (i = 0; chip_info_table[i].name != NULL; i++)
472 if (chip_info_table[i].chip_id == chip_id)
474 return chip_info_table[i].name;
478 * velocity_remove1 - device unplug
479 * @pdev: PCI device being removed
481 * Device unload callback. Called on an unplug or on module
482 * unload for each active device that is present. Disconnects
483 * the device from the network layer and frees all the resources
486 static void __devexit velocity_remove1(struct pci_dev *pdev)
488 struct net_device *dev = pci_get_drvdata(pdev);
489 struct velocity_info *vptr = netdev_priv(dev);
494 spin_lock_irqsave(&velocity_dev_list_lock, flags);
495 if (!list_empty(&velocity_dev_list))
496 list_del(&vptr->list);
497 spin_unlock_irqrestore(&velocity_dev_list_lock, flags);
499 unregister_netdev(dev);
500 iounmap(vptr->mac_regs);
501 pci_release_regions(pdev);
502 pci_disable_device(pdev);
503 pci_set_drvdata(pdev, NULL);
510 * velocity_set_int_opt - parser for integer options
511 * @opt: pointer to option value
512 * @val: value the user requested (or -1 for default)
513 * @min: lowest value allowed
514 * @max: highest value allowed
515 * @def: default value
516 * @name: property name
519 * Set an integer property in the module options. This function does
520 * all the verification and checking as well as reporting so that
521 * we don't duplicate code for each option.
524 static void __devinit velocity_set_int_opt(int *opt, int val, int min, int max, int def, char *name, char *devname)
528 else if (val < min || val > max) {
529 VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: the value of parameter %s is invalid, the valid range is (%d-%d)\n",
530 devname, name, min, max);
533 VELOCITY_PRT(MSG_LEVEL_INFO, KERN_INFO "%s: set value of parameter %s to %d\n",
540 * velocity_set_bool_opt - parser for boolean options
541 * @opt: pointer to option value
542 * @val: value the user requested (or -1 for default)
543 * @def: default value (yes/no)
544 * @flag: numeric value to set for true.
545 * @name: property name
548 * Set a boolean property in the module options. This function does
549 * all the verification and checking as well as reporting so that
550 * we don't duplicate code for each option.
553 static void __devinit velocity_set_bool_opt(u32 * opt, int val, int def, u32 flag, char *name, char *devname)
557 *opt |= (def ? flag : 0);
558 else if (val < 0 || val > 1) {
559 printk(KERN_NOTICE "%s: the value of parameter %s is invalid, the valid range is (0-1)\n",
561 *opt |= (def ? flag : 0);
563 printk(KERN_INFO "%s: set parameter %s to %s\n",
564 devname, name, val ? "TRUE" : "FALSE");
565 *opt |= (val ? flag : 0);
570 * velocity_get_options - set options on device
571 * @opts: option structure for the device
572 * @index: index of option to use in module options array
573 * @devname: device name
575 * Turn the module and command options into a single structure
576 * for the current device
579 static void __devinit velocity_get_options(struct velocity_opt *opts, int index, char *devname)
582 velocity_set_int_opt(&opts->rx_thresh, rx_thresh[index], RX_THRESH_MIN, RX_THRESH_MAX, RX_THRESH_DEF, "rx_thresh", devname);
583 velocity_set_int_opt(&opts->DMA_length, DMA_length[index], DMA_LENGTH_MIN, DMA_LENGTH_MAX, DMA_LENGTH_DEF, "DMA_length", devname);
584 velocity_set_int_opt(&opts->numrx, RxDescriptors[index], RX_DESC_MIN, RX_DESC_MAX, RX_DESC_DEF, "RxDescriptors", devname);
585 velocity_set_int_opt(&opts->numtx, TxDescriptors[index], TX_DESC_MIN, TX_DESC_MAX, TX_DESC_DEF, "TxDescriptors", devname);
587 velocity_set_bool_opt(&opts->flags, txcsum_offload[index], TX_CSUM_DEF, VELOCITY_FLAGS_TX_CSUM, "txcsum_offload", devname);
588 velocity_set_int_opt(&opts->flow_cntl, flow_control[index], FLOW_CNTL_MIN, FLOW_CNTL_MAX, FLOW_CNTL_DEF, "flow_control", devname);
589 velocity_set_bool_opt(&opts->flags, IP_byte_align[index], IP_ALIG_DEF, VELOCITY_FLAGS_IP_ALIGN, "IP_byte_align", devname);
590 velocity_set_bool_opt(&opts->flags, ValPktLen[index], VAL_PKT_LEN_DEF, VELOCITY_FLAGS_VAL_PKT_LEN, "ValPktLen", devname);
591 velocity_set_int_opt((int *) &opts->spd_dpx, speed_duplex[index], MED_LNK_MIN, MED_LNK_MAX, MED_LNK_DEF, "Media link mode", devname);
592 velocity_set_int_opt((int *) &opts->wol_opts, wol_opts[index], WOL_OPT_MIN, WOL_OPT_MAX, WOL_OPT_DEF, "Wake On Lan options", devname);
593 velocity_set_int_opt((int *) &opts->int_works, int_works[index], INT_WORKS_MIN, INT_WORKS_MAX, INT_WORKS_DEF, "Interrupt service works", devname);
594 opts->numrx = (opts->numrx & ~3);
598 * velocity_init_cam_filter - initialise CAM
599 * @vptr: velocity to program
601 * Initialize the content addressable memory used for filters. Load
602 * appropriately according to the presence of VLAN
605 static void velocity_init_cam_filter(struct velocity_info *vptr)
607 struct mac_regs __iomem * regs = vptr->mac_regs;
609 /* Turn on MCFG_PQEN, turn off MCFG_RTGOPT */
610 WORD_REG_BITS_SET(MCFG_PQEN, MCFG_RTGOPT, ®s->MCFG);
611 WORD_REG_BITS_ON(MCFG_VIDFR, ®s->MCFG);
613 /* Disable all CAMs */
614 memset(vptr->vCAMmask, 0, sizeof(u8) * 8);
615 memset(vptr->mCAMmask, 0, sizeof(u8) * 8);
616 mac_set_vlan_cam_mask(regs, vptr->vCAMmask);
617 mac_set_cam_mask(regs, vptr->mCAMmask);
621 unsigned int vid, i = 0;
623 if (!vlan_group_get_device(vptr->vlgrp, 0))
624 WORD_REG_BITS_ON(MCFG_RTGOPT, ®s->MCFG);
626 for (vid = 1; (vid < VLAN_VID_MASK); vid++) {
627 if (vlan_group_get_device(vptr->vlgrp, vid)) {
628 mac_set_vlan_cam(regs, i, (u8 *) &vid);
629 vptr->vCAMmask[i / 8] |= 0x1 << (i % 8);
630 if (++i >= VCAM_SIZE)
634 mac_set_vlan_cam_mask(regs, vptr->vCAMmask);
638 static void velocity_vlan_rx_register(struct net_device *dev,
639 struct vlan_group *grp)
641 struct velocity_info *vptr = netdev_priv(dev);
646 static void velocity_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
648 struct velocity_info *vptr = netdev_priv(dev);
650 spin_lock_irq(&vptr->lock);
651 velocity_init_cam_filter(vptr);
652 spin_unlock_irq(&vptr->lock);
655 static void velocity_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
657 struct velocity_info *vptr = netdev_priv(dev);
659 spin_lock_irq(&vptr->lock);
660 vlan_group_set_device(vptr->vlgrp, vid, NULL);
661 velocity_init_cam_filter(vptr);
662 spin_unlock_irq(&vptr->lock);
667 * velocity_rx_reset - handle a receive reset
668 * @vptr: velocity we are resetting
670 * Reset the ownership and status for the receive ring side.
671 * Hand all the receive queue to the NIC.
674 static void velocity_rx_reset(struct velocity_info *vptr)
677 struct mac_regs __iomem * regs = vptr->mac_regs;
680 vptr->rd_dirty = vptr->rd_filled = vptr->rd_curr = 0;
683 * Init state, all RD entries belong to the NIC
685 for (i = 0; i < vptr->options.numrx; ++i)
686 vptr->rd_ring[i].rdesc0.len |= OWNED_BY_NIC;
688 writew(vptr->options.numrx, ®s->RBRDU);
689 writel(vptr->rd_pool_dma, ®s->RDBaseLo);
690 writew(0, ®s->RDIdx);
691 writew(vptr->options.numrx - 1, ®s->RDCSize);
695 * velocity_init_registers - initialise MAC registers
696 * @vptr: velocity to init
697 * @type: type of initialisation (hot or cold)
699 * Initialise the MAC on a reset or on first set up on the
703 static void velocity_init_registers(struct velocity_info *vptr,
704 enum velocity_init_type type)
706 struct mac_regs __iomem * regs = vptr->mac_regs;
712 case VELOCITY_INIT_RESET:
713 case VELOCITY_INIT_WOL:
715 netif_stop_queue(vptr->dev);
718 * Reset RX to prevent RX pointer not on the 4X location
720 velocity_rx_reset(vptr);
721 mac_rx_queue_run(regs);
722 mac_rx_queue_wake(regs);
724 mii_status = velocity_get_opt_media_mode(vptr);
725 if (velocity_set_media_mode(vptr, mii_status) != VELOCITY_LINK_CHANGE) {
726 velocity_print_link_status(vptr);
727 if (!(vptr->mii_status & VELOCITY_LINK_FAIL))
728 netif_wake_queue(vptr->dev);
731 enable_flow_control_ability(vptr);
734 writel(CR0_STOP, ®s->CR0Clr);
735 writel((CR0_DPOLL | CR0_TXON | CR0_RXON | CR0_STRT),
740 case VELOCITY_INIT_COLD:
745 velocity_soft_reset(vptr);
748 mac_eeprom_reload(regs);
749 for (i = 0; i < 6; i++) {
750 writeb(vptr->dev->dev_addr[i], &(regs->PAR[i]));
753 * clear Pre_ACPI bit.
755 BYTE_REG_BITS_OFF(CFGA_PACPI, &(regs->CFGA));
756 mac_set_rx_thresh(regs, vptr->options.rx_thresh);
757 mac_set_dma_length(regs, vptr->options.DMA_length);
759 writeb(WOLCFG_SAM | WOLCFG_SAB, ®s->WOLCFGSet);
761 * Back off algorithm use original IEEE standard
763 BYTE_REG_BITS_SET(CFGB_OFSET, (CFGB_CRANDOM | CFGB_CAP | CFGB_MBA | CFGB_BAKOPT), ®s->CFGB);
768 velocity_init_cam_filter(vptr);
771 * Set packet filter: Receive directed and broadcast address
773 velocity_set_multi(vptr->dev);
776 * Enable MII auto-polling
778 enable_mii_autopoll(regs);
780 vptr->int_mask = INT_MASK_DEF;
782 writel(vptr->rd_pool_dma, ®s->RDBaseLo);
783 writew(vptr->options.numrx - 1, ®s->RDCSize);
784 mac_rx_queue_run(regs);
785 mac_rx_queue_wake(regs);
787 writew(vptr->options.numtx - 1, ®s->TDCSize);
789 for (i = 0; i < vptr->num_txq; i++) {
790 writel(vptr->td_pool_dma[i], ®s->TDBaseLo[i]);
791 mac_tx_queue_run(regs, i);
794 init_flow_control_register(vptr);
796 writel(CR0_STOP, ®s->CR0Clr);
797 writel((CR0_DPOLL | CR0_TXON | CR0_RXON | CR0_STRT), ®s->CR0Set);
799 mii_status = velocity_get_opt_media_mode(vptr);
800 netif_stop_queue(vptr->dev);
802 mii_init(vptr, mii_status);
804 if (velocity_set_media_mode(vptr, mii_status) != VELOCITY_LINK_CHANGE) {
805 velocity_print_link_status(vptr);
806 if (!(vptr->mii_status & VELOCITY_LINK_FAIL))
807 netif_wake_queue(vptr->dev);
810 enable_flow_control_ability(vptr);
811 mac_hw_mibs_init(regs);
812 mac_write_int_mask(vptr->int_mask, regs);
819 * velocity_soft_reset - soft reset
820 * @vptr: velocity to reset
822 * Kick off a soft reset of the velocity adapter and then poll
823 * until the reset sequence has completed before returning.
826 static int velocity_soft_reset(struct velocity_info *vptr)
828 struct mac_regs __iomem * regs = vptr->mac_regs;
831 writel(CR0_SFRST, ®s->CR0Set);
833 for (i = 0; i < W_MAX_TIMEOUT; i++) {
835 if (!DWORD_REG_BITS_IS_ON(CR0_SFRST, ®s->CR0Set))
839 if (i == W_MAX_TIMEOUT) {
840 writel(CR0_FORSRST, ®s->CR0Set);
841 /* FIXME: PCI POSTING */
849 * velocity_found1 - set up discovered velocity card
851 * @ent: PCI device table entry that matched
853 * Configure a discovered adapter from scratch. Return a negative
854 * errno error code on failure paths.
857 static int __devinit velocity_found1(struct pci_dev *pdev, const struct pci_device_id *ent)
859 static int first = 1;
860 struct net_device *dev;
862 const struct velocity_info_tbl *info = &chip_info_table[ent->driver_data];
863 struct velocity_info *vptr;
864 struct mac_regs __iomem * regs;
867 /* FIXME: this driver, like almost all other ethernet drivers,
868 * can support more than MAX_UNITS.
870 if (velocity_nics >= MAX_UNITS) {
871 dev_notice(&pdev->dev, "already found %d NICs.\n",
876 dev = alloc_etherdev(sizeof(struct velocity_info));
878 dev_err(&pdev->dev, "allocate net device failed.\n");
882 /* Chain it all together */
884 SET_NETDEV_DEV(dev, &pdev->dev);
885 vptr = netdev_priv(dev);
889 printk(KERN_INFO "%s Ver. %s\n",
890 VELOCITY_FULL_DRV_NAM, VELOCITY_VERSION);
891 printk(KERN_INFO "Copyright (c) 2002, 2003 VIA Networking Technologies, Inc.\n");
892 printk(KERN_INFO "Copyright (c) 2004 Red Hat Inc.\n");
896 velocity_init_info(pdev, vptr, info);
900 dev->irq = pdev->irq;
902 ret = pci_enable_device(pdev);
906 ret = velocity_get_pci_info(vptr, pdev);
908 /* error message already printed */
912 ret = pci_request_regions(pdev, VELOCITY_NAME);
914 dev_err(&pdev->dev, "No PCI resources.\n");
918 regs = ioremap(vptr->memaddr, VELOCITY_IO_SIZE);
921 goto err_release_res;
924 vptr->mac_regs = regs;
928 dev->base_addr = vptr->ioaddr;
930 for (i = 0; i < 6; i++)
931 dev->dev_addr[i] = readb(®s->PAR[i]);
934 velocity_get_options(&vptr->options, velocity_nics, dev->name);
937 * Mask out the options cannot be set to the chip
940 vptr->options.flags &= info->flags;
943 * Enable the chip specified capbilities
946 vptr->flags = vptr->options.flags | (info->flags & 0xFF000000UL);
948 vptr->wol_opts = vptr->options.wol_opts;
949 vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED;
951 vptr->phy_id = MII_GET_PHY_ID(vptr->mac_regs);
953 dev->irq = pdev->irq;
954 dev->open = velocity_open;
955 dev->hard_start_xmit = velocity_xmit;
956 dev->stop = velocity_close;
957 dev->get_stats = velocity_get_stats;
958 dev->set_multicast_list = velocity_set_multi;
959 dev->do_ioctl = velocity_ioctl;
960 dev->ethtool_ops = &velocity_ethtool_ops;
961 dev->change_mtu = velocity_change_mtu;
963 dev->vlan_rx_add_vid = velocity_vlan_rx_add_vid;
964 dev->vlan_rx_kill_vid = velocity_vlan_rx_kill_vid;
965 dev->vlan_rx_register = velocity_vlan_rx_register;
967 #ifdef VELOCITY_ZERO_COPY_SUPPORT
968 dev->features |= NETIF_F_SG;
970 dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_FILTER |
973 if (vptr->flags & VELOCITY_FLAGS_TX_CSUM)
974 dev->features |= NETIF_F_IP_CSUM;
976 ret = register_netdev(dev);
980 if (velocity_get_link(dev))
981 netif_carrier_off(dev);
983 velocity_print_info(vptr);
984 pci_set_drvdata(pdev, dev);
986 /* and leave the chip powered down */
988 pci_set_power_state(pdev, PCI_D3hot);
993 spin_lock_irqsave(&velocity_dev_list_lock, flags);
994 list_add(&vptr->list, &velocity_dev_list);
995 spin_unlock_irqrestore(&velocity_dev_list_lock, flags);
1005 pci_release_regions(pdev);
1007 pci_disable_device(pdev);
1014 * velocity_print_info - per driver data
1017 * Print per driver data as the kernel driver finds Velocity
1021 static void __devinit velocity_print_info(struct velocity_info *vptr)
1023 struct net_device *dev = vptr->dev;
1025 printk(KERN_INFO "%s: %s\n", dev->name, get_chip_name(vptr->chip_id));
1026 printk(KERN_INFO "%s: Ethernet Address: %2.2X:%2.2X:%2.2X:%2.2X:%2.2X:%2.2X\n",
1028 dev->dev_addr[0], dev->dev_addr[1], dev->dev_addr[2],
1029 dev->dev_addr[3], dev->dev_addr[4], dev->dev_addr[5]);
1033 * velocity_init_info - init private data
1035 * @vptr: Velocity info
1038 * Set up the initial velocity_info struct for the device that has been
1042 static void __devinit velocity_init_info(struct pci_dev *pdev,
1043 struct velocity_info *vptr,
1044 const struct velocity_info_tbl *info)
1046 memset(vptr, 0, sizeof(struct velocity_info));
1049 vptr->chip_id = info->chip_id;
1050 vptr->num_txq = info->txqueue;
1051 vptr->multicast_limit = MCAM_SIZE;
1052 spin_lock_init(&vptr->lock);
1053 INIT_LIST_HEAD(&vptr->list);
1057 * velocity_get_pci_info - retrieve PCI info for device
1058 * @vptr: velocity device
1059 * @pdev: PCI device it matches
1061 * Retrieve the PCI configuration space data that interests us from
1062 * the kernel PCI layer
1065 static int __devinit velocity_get_pci_info(struct velocity_info *vptr, struct pci_dev *pdev)
1067 vptr->rev_id = pdev->revision;
1069 pci_set_master(pdev);
1071 vptr->ioaddr = pci_resource_start(pdev, 0);
1072 vptr->memaddr = pci_resource_start(pdev, 1);
1074 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_IO)) {
1076 "region #0 is not an I/O resource, aborting.\n");
1080 if ((pci_resource_flags(pdev, 1) & IORESOURCE_IO)) {
1082 "region #1 is an I/O resource, aborting.\n");
1086 if (pci_resource_len(pdev, 1) < VELOCITY_IO_SIZE) {
1087 dev_err(&pdev->dev, "region #1 is too small.\n");
1096 * velocity_init_rings - set up DMA rings
1097 * @vptr: Velocity to set up
1099 * Allocate PCI mapped DMA rings for the receive and transmit layer
1103 static int velocity_init_rings(struct velocity_info *vptr)
1105 struct velocity_opt *opt = &vptr->options;
1106 const unsigned int rx_ring_size = opt->numrx * sizeof(struct rx_desc);
1107 const unsigned int tx_ring_size = opt->numtx * sizeof(struct tx_desc);
1108 struct pci_dev *pdev = vptr->pdev;
1109 dma_addr_t pool_dma;
1114 * Allocate all RD/TD rings a single pool.
1116 * pci_alloc_consistent() fulfills the requirement for 64 bytes
1119 pool = pci_alloc_consistent(pdev, tx_ring_size * vptr->num_txq +
1120 rx_ring_size, &pool_dma);
1122 dev_err(&pdev->dev, "%s : DMA memory allocation failed.\n",
1127 vptr->rd_ring = pool;
1128 vptr->rd_pool_dma = pool_dma;
1130 pool += rx_ring_size;
1131 pool_dma += rx_ring_size;
1133 for (i = 0; i < vptr->num_txq; i++) {
1134 vptr->td_rings[i] = pool;
1135 vptr->td_pool_dma[i] = pool_dma;
1136 pool += tx_ring_size;
1137 pool_dma += tx_ring_size;
1144 * velocity_free_rings - free PCI ring pointers
1145 * @vptr: Velocity to free from
1147 * Clean up the PCI ring buffers allocated to this velocity.
1150 static void velocity_free_rings(struct velocity_info *vptr)
1152 const int size = vptr->options.numrx * sizeof(struct rx_desc) +
1153 vptr->options.numtx * sizeof(struct tx_desc) * vptr->num_txq;
1155 pci_free_consistent(vptr->pdev, size, vptr->rd_ring, vptr->rd_pool_dma);
1158 static inline void velocity_give_many_rx_descs(struct velocity_info *vptr)
1160 struct mac_regs __iomem *regs = vptr->mac_regs;
1161 int avail, dirty, unusable;
1164 * RD number must be equal to 4X per hardware spec
1165 * (programming guide rev 1.20, p.13)
1167 if (vptr->rd_filled < 4)
1172 unusable = vptr->rd_filled & 0x0003;
1173 dirty = vptr->rd_dirty - unusable;
1174 for (avail = vptr->rd_filled & 0xfffc; avail; avail--) {
1175 dirty = (dirty > 0) ? dirty - 1 : vptr->options.numrx - 1;
1176 vptr->rd_ring[dirty].rdesc0.len |= OWNED_BY_NIC;
1179 writew(vptr->rd_filled & 0xfffc, ®s->RBRDU);
1180 vptr->rd_filled = unusable;
1183 static int velocity_rx_refill(struct velocity_info *vptr)
1185 int dirty = vptr->rd_dirty, done = 0, ret = 0;
1188 struct rx_desc *rd = vptr->rd_ring + dirty;
1190 /* Fine for an all zero Rx desc at init time as well */
1191 if (rd->rdesc0.len & OWNED_BY_NIC)
1194 if (!vptr->rd_info[dirty].skb) {
1195 ret = velocity_alloc_rx_buf(vptr, dirty);
1200 dirty = (dirty < vptr->options.numrx - 1) ? dirty + 1 : 0;
1201 } while (dirty != vptr->rd_curr);
1204 vptr->rd_dirty = dirty;
1205 vptr->rd_filled += done;
1206 velocity_give_many_rx_descs(vptr);
1213 * velocity_init_rd_ring - set up receive ring
1214 * @vptr: velocity to configure
1216 * Allocate and set up the receive buffers for each ring slot and
1217 * assign them to the network adapter.
1220 static int velocity_init_rd_ring(struct velocity_info *vptr)
1223 int mtu = vptr->dev->mtu;
1225 vptr->rx_buf_sz = (mtu <= ETH_DATA_LEN) ? PKT_BUF_SZ : mtu + 32;
1227 vptr->rd_info = kcalloc(vptr->options.numrx,
1228 sizeof(struct velocity_rd_info), GFP_KERNEL);
1232 vptr->rd_filled = vptr->rd_dirty = vptr->rd_curr = 0;
1234 ret = velocity_rx_refill(vptr);
1236 VELOCITY_PRT(MSG_LEVEL_ERR, KERN_ERR
1237 "%s: failed to allocate RX buffer.\n", vptr->dev->name);
1238 velocity_free_rd_ring(vptr);
1245 * velocity_free_rd_ring - free receive ring
1246 * @vptr: velocity to clean up
1248 * Free the receive buffers for each ring slot and any
1249 * attached socket buffers that need to go away.
1252 static void velocity_free_rd_ring(struct velocity_info *vptr)
1256 if (vptr->rd_info == NULL)
1259 for (i = 0; i < vptr->options.numrx; i++) {
1260 struct velocity_rd_info *rd_info = &(vptr->rd_info[i]);
1261 struct rx_desc *rd = vptr->rd_ring + i;
1263 memset(rd, 0, sizeof(*rd));
1267 pci_unmap_single(vptr->pdev, rd_info->skb_dma, vptr->rx_buf_sz,
1268 PCI_DMA_FROMDEVICE);
1269 rd_info->skb_dma = (dma_addr_t) NULL;
1271 dev_kfree_skb(rd_info->skb);
1272 rd_info->skb = NULL;
1275 kfree(vptr->rd_info);
1276 vptr->rd_info = NULL;
1280 * velocity_init_td_ring - set up transmit ring
1283 * Set up the transmit ring and chain the ring pointers together.
1284 * Returns zero on success or a negative posix errno code for
1288 static int velocity_init_td_ring(struct velocity_info *vptr)
1293 /* Init the TD ring entries */
1294 for (j = 0; j < vptr->num_txq; j++) {
1295 curr = vptr->td_pool_dma[j];
1297 vptr->td_infos[j] = kcalloc(vptr->options.numtx,
1298 sizeof(struct velocity_td_info),
1300 if (!vptr->td_infos[j]) {
1302 kfree(vptr->td_infos[j]);
1306 vptr->td_tail[j] = vptr->td_curr[j] = vptr->td_used[j] = 0;
1312 * FIXME: could we merge this with velocity_free_tx_buf ?
1315 static void velocity_free_td_ring_entry(struct velocity_info *vptr,
1318 struct velocity_td_info * td_info = &(vptr->td_infos[q][n]);
1321 if (td_info == NULL)
1325 for (i = 0; i < td_info->nskb_dma; i++)
1327 if (td_info->skb_dma[i]) {
1328 pci_unmap_single(vptr->pdev, td_info->skb_dma[i],
1329 td_info->skb->len, PCI_DMA_TODEVICE);
1330 td_info->skb_dma[i] = (dma_addr_t) NULL;
1333 dev_kfree_skb(td_info->skb);
1334 td_info->skb = NULL;
1339 * velocity_free_td_ring - free td ring
1342 * Free up the transmit ring for this particular velocity adapter.
1343 * We free the ring contents but not the ring itself.
1346 static void velocity_free_td_ring(struct velocity_info *vptr)
1350 for (j = 0; j < vptr->num_txq; j++) {
1351 if (vptr->td_infos[j] == NULL)
1353 for (i = 0; i < vptr->options.numtx; i++) {
1354 velocity_free_td_ring_entry(vptr, j, i);
1357 kfree(vptr->td_infos[j]);
1358 vptr->td_infos[j] = NULL;
1363 * velocity_rx_srv - service RX interrupt
1365 * @status: adapter status (unused)
1367 * Walk the receive ring of the velocity adapter and remove
1368 * any received packets from the receive queue. Hand the ring
1369 * slots back to the adapter for reuse.
1372 static int velocity_rx_srv(struct velocity_info *vptr, int status)
1374 struct net_device_stats *stats = &vptr->stats;
1375 int rd_curr = vptr->rd_curr;
1379 struct rx_desc *rd = vptr->rd_ring + rd_curr;
1381 if (!vptr->rd_info[rd_curr].skb)
1384 if (rd->rdesc0.len & OWNED_BY_NIC)
1390 * Don't drop CE or RL error frame although RXOK is off
1392 if (rd->rdesc0.RSR & (RSR_RXOK | RSR_CE | RSR_RL)) {
1393 if (velocity_receive_frame(vptr, rd_curr) < 0)
1394 stats->rx_dropped++;
1396 if (rd->rdesc0.RSR & RSR_CRC)
1397 stats->rx_crc_errors++;
1398 if (rd->rdesc0.RSR & RSR_FAE)
1399 stats->rx_frame_errors++;
1401 stats->rx_dropped++;
1404 rd->size |= RX_INTEN;
1406 vptr->dev->last_rx = jiffies;
1409 if (rd_curr >= vptr->options.numrx)
1411 } while (++works <= 15);
1413 vptr->rd_curr = rd_curr;
1415 if (works > 0 && velocity_rx_refill(vptr) < 0) {
1416 VELOCITY_PRT(MSG_LEVEL_ERR, KERN_ERR
1417 "%s: rx buf allocation failure\n", vptr->dev->name);
1425 * velocity_rx_csum - checksum process
1426 * @rd: receive packet descriptor
1427 * @skb: network layer packet buffer
1429 * Process the status bits for the received packet and determine
1430 * if the checksum was computed and verified by the hardware
1433 static inline void velocity_rx_csum(struct rx_desc *rd, struct sk_buff *skb)
1435 skb->ip_summed = CHECKSUM_NONE;
1437 if (rd->rdesc1.CSM & CSM_IPKT) {
1438 if (rd->rdesc1.CSM & CSM_IPOK) {
1439 if ((rd->rdesc1.CSM & CSM_TCPKT) ||
1440 (rd->rdesc1.CSM & CSM_UDPKT)) {
1441 if (!(rd->rdesc1.CSM & CSM_TUPOK)) {
1445 skb->ip_summed = CHECKSUM_UNNECESSARY;
1451 * velocity_rx_copy - in place Rx copy for small packets
1452 * @rx_skb: network layer packet buffer candidate
1453 * @pkt_size: received data size
1454 * @rd: receive packet descriptor
1455 * @dev: network device
1457 * Replace the current skb that is scheduled for Rx processing by a
1458 * shorter, immediatly allocated skb, if the received packet is small
1459 * enough. This function returns a negative value if the received
1460 * packet is too big or if memory is exhausted.
1462 static int velocity_rx_copy(struct sk_buff **rx_skb, int pkt_size,
1463 struct velocity_info *vptr)
1466 if (pkt_size < rx_copybreak) {
1467 struct sk_buff *new_skb;
1469 new_skb = netdev_alloc_skb(vptr->dev, pkt_size + 2);
1471 new_skb->ip_summed = rx_skb[0]->ip_summed;
1472 skb_reserve(new_skb, 2);
1473 skb_copy_from_linear_data(*rx_skb, new_skb->data, pkt_size);
1483 * velocity_iph_realign - IP header alignment
1484 * @vptr: velocity we are handling
1485 * @skb: network layer packet buffer
1486 * @pkt_size: received data size
1488 * Align IP header on a 2 bytes boundary. This behavior can be
1489 * configured by the user.
1491 static inline void velocity_iph_realign(struct velocity_info *vptr,
1492 struct sk_buff *skb, int pkt_size)
1494 if (vptr->flags & VELOCITY_FLAGS_IP_ALIGN) {
1495 memmove(skb->data + 2, skb->data, pkt_size);
1496 skb_reserve(skb, 2);
1501 * velocity_receive_frame - received packet processor
1502 * @vptr: velocity we are handling
1505 * A packet has arrived. We process the packet and if appropriate
1506 * pass the frame up the network stack
1509 static int velocity_receive_frame(struct velocity_info *vptr, int idx)
1511 void (*pci_action)(struct pci_dev *, dma_addr_t, size_t, int);
1512 struct net_device_stats *stats = &vptr->stats;
1513 struct velocity_rd_info *rd_info = &(vptr->rd_info[idx]);
1514 struct rx_desc *rd = &(vptr->rd_ring[idx]);
1515 int pkt_len = le16_to_cpu(rd->rdesc0.len) & 0x3fff;
1516 struct sk_buff *skb;
1518 if (rd->rdesc0.RSR & (RSR_STP | RSR_EDP)) {
1519 VELOCITY_PRT(MSG_LEVEL_VERBOSE, KERN_ERR " %s : the received frame span multple RDs.\n", vptr->dev->name);
1520 stats->rx_length_errors++;
1524 if (rd->rdesc0.RSR & RSR_MAR)
1525 vptr->stats.multicast++;
1529 pci_dma_sync_single_for_cpu(vptr->pdev, rd_info->skb_dma,
1530 vptr->rx_buf_sz, PCI_DMA_FROMDEVICE);
1533 * Drop frame not meeting IEEE 802.3
1536 if (vptr->flags & VELOCITY_FLAGS_VAL_PKT_LEN) {
1537 if (rd->rdesc0.RSR & RSR_RL) {
1538 stats->rx_length_errors++;
1543 pci_action = pci_dma_sync_single_for_device;
1545 velocity_rx_csum(rd, skb);
1547 if (velocity_rx_copy(&skb, pkt_len, vptr) < 0) {
1548 velocity_iph_realign(vptr, skb, pkt_len);
1549 pci_action = pci_unmap_single;
1550 rd_info->skb = NULL;
1553 pci_action(vptr->pdev, rd_info->skb_dma, vptr->rx_buf_sz,
1554 PCI_DMA_FROMDEVICE);
1556 skb_put(skb, pkt_len - 4);
1557 skb->protocol = eth_type_trans(skb, vptr->dev);
1559 if (vptr->vlgrp && (rd->rdesc0.RSR & RSR_DETAG)) {
1560 vlan_hwaccel_rx(skb, vptr->vlgrp,
1561 swab16(le16_to_cpu(rd->rdesc1.PQTAG)));
1565 stats->rx_bytes += pkt_len;
1571 * velocity_alloc_rx_buf - allocate aligned receive buffer
1575 * Allocate a new full sized buffer for the reception of a frame and
1576 * map it into PCI space for the hardware to use. The hardware
1577 * requires *64* byte alignment of the buffer which makes life
1578 * less fun than would be ideal.
1581 static int velocity_alloc_rx_buf(struct velocity_info *vptr, int idx)
1583 struct rx_desc *rd = &(vptr->rd_ring[idx]);
1584 struct velocity_rd_info *rd_info = &(vptr->rd_info[idx]);
1586 rd_info->skb = netdev_alloc_skb(vptr->dev, vptr->rx_buf_sz + 64);
1587 if (rd_info->skb == NULL)
1591 * Do the gymnastics to get the buffer head for data at
1594 skb_reserve(rd_info->skb, (unsigned long) rd_info->skb->data & 63);
1595 rd_info->skb_dma = pci_map_single(vptr->pdev, rd_info->skb->data, vptr->rx_buf_sz, PCI_DMA_FROMDEVICE);
1598 * Fill in the descriptor to match
1601 *((u32 *) & (rd->rdesc0)) = 0;
1602 rd->size = cpu_to_le16(vptr->rx_buf_sz) | RX_INTEN;
1603 rd->pa_low = cpu_to_le32(rd_info->skb_dma);
1609 * tx_srv - transmit interrupt service
1613 * Scan the queues looking for transmitted packets that
1614 * we can complete and clean up. Update any statistics as
1618 static int velocity_tx_srv(struct velocity_info *vptr, u32 status)
1625 struct velocity_td_info *tdinfo;
1626 struct net_device_stats *stats = &vptr->stats;
1628 for (qnum = 0; qnum < vptr->num_txq; qnum++) {
1629 for (idx = vptr->td_tail[qnum]; vptr->td_used[qnum] > 0;
1630 idx = (idx + 1) % vptr->options.numtx) {
1635 td = &(vptr->td_rings[qnum][idx]);
1636 tdinfo = &(vptr->td_infos[qnum][idx]);
1638 if (td->tdesc0.len & OWNED_BY_NIC)
1644 if (td->tdesc0.TSR & TSR0_TERR) {
1646 stats->tx_dropped++;
1647 if (td->tdesc0.TSR & TSR0_CDH)
1648 stats->tx_heartbeat_errors++;
1649 if (td->tdesc0.TSR & TSR0_CRS)
1650 stats->tx_carrier_errors++;
1651 if (td->tdesc0.TSR & TSR0_ABT)
1652 stats->tx_aborted_errors++;
1653 if (td->tdesc0.TSR & TSR0_OWC)
1654 stats->tx_window_errors++;
1656 stats->tx_packets++;
1657 stats->tx_bytes += tdinfo->skb->len;
1659 velocity_free_tx_buf(vptr, tdinfo);
1660 vptr->td_used[qnum]--;
1662 vptr->td_tail[qnum] = idx;
1664 if (AVAIL_TD(vptr, qnum) < 1) {
1669 * Look to see if we should kick the transmit network
1670 * layer for more work.
1672 if (netif_queue_stopped(vptr->dev) && (full == 0)
1673 && (!(vptr->mii_status & VELOCITY_LINK_FAIL))) {
1674 netif_wake_queue(vptr->dev);
1680 * velocity_print_link_status - link status reporting
1681 * @vptr: velocity to report on
1683 * Turn the link status of the velocity card into a kernel log
1684 * description of the new link state, detailing speed and duplex
1688 static void velocity_print_link_status(struct velocity_info *vptr)
1691 if (vptr->mii_status & VELOCITY_LINK_FAIL) {
1692 VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: failed to detect cable link\n", vptr->dev->name);
1693 } else if (vptr->options.spd_dpx == SPD_DPX_AUTO) {
1694 VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: Link auto-negotiation", vptr->dev->name);
1696 if (vptr->mii_status & VELOCITY_SPEED_1000)
1697 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 1000M bps");
1698 else if (vptr->mii_status & VELOCITY_SPEED_100)
1699 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 100M bps");
1701 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 10M bps");
1703 if (vptr->mii_status & VELOCITY_DUPLEX_FULL)
1704 VELOCITY_PRT(MSG_LEVEL_INFO, " full duplex\n");
1706 VELOCITY_PRT(MSG_LEVEL_INFO, " half duplex\n");
1708 VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: Link forced", vptr->dev->name);
1709 switch (vptr->options.spd_dpx) {
1710 case SPD_DPX_100_HALF:
1711 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 100M bps half duplex\n");
1713 case SPD_DPX_100_FULL:
1714 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 100M bps full duplex\n");
1716 case SPD_DPX_10_HALF:
1717 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 10M bps half duplex\n");
1719 case SPD_DPX_10_FULL:
1720 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 10M bps full duplex\n");
1729 * velocity_error - handle error from controller
1731 * @status: card status
1733 * Process an error report from the hardware and attempt to recover
1734 * the card itself. At the moment we cannot recover from some
1735 * theoretically impossible errors but this could be fixed using
1736 * the pci_device_failed logic to bounce the hardware
1740 static void velocity_error(struct velocity_info *vptr, int status)
1743 if (status & ISR_TXSTLI) {
1744 struct mac_regs __iomem * regs = vptr->mac_regs;
1746 printk(KERN_ERR "TD structure error TDindex=%hx\n", readw(®s->TDIdx[0]));
1747 BYTE_REG_BITS_ON(TXESR_TDSTR, ®s->TXESR);
1748 writew(TRDCSR_RUN, ®s->TDCSRClr);
1749 netif_stop_queue(vptr->dev);
1751 /* FIXME: port over the pci_device_failed code and use it
1755 if (status & ISR_SRCI) {
1756 struct mac_regs __iomem * regs = vptr->mac_regs;
1759 if (vptr->options.spd_dpx == SPD_DPX_AUTO) {
1760 vptr->mii_status = check_connection_type(regs);
1763 * If it is a 3119, disable frame bursting in
1764 * halfduplex mode and enable it in fullduplex
1767 if (vptr->rev_id < REV_ID_VT3216_A0) {
1768 if (vptr->mii_status | VELOCITY_DUPLEX_FULL)
1769 BYTE_REG_BITS_ON(TCR_TB2BDIS, ®s->TCR);
1771 BYTE_REG_BITS_OFF(TCR_TB2BDIS, ®s->TCR);
1774 * Only enable CD heart beat counter in 10HD mode
1776 if (!(vptr->mii_status & VELOCITY_DUPLEX_FULL) && (vptr->mii_status & VELOCITY_SPEED_10)) {
1777 BYTE_REG_BITS_OFF(TESTCFG_HBDIS, ®s->TESTCFG);
1779 BYTE_REG_BITS_ON(TESTCFG_HBDIS, ®s->TESTCFG);
1783 * Get link status from PHYSR0
1785 linked = readb(®s->PHYSR0) & PHYSR0_LINKGD;
1788 vptr->mii_status &= ~VELOCITY_LINK_FAIL;
1789 netif_carrier_on(vptr->dev);
1791 vptr->mii_status |= VELOCITY_LINK_FAIL;
1792 netif_carrier_off(vptr->dev);
1795 velocity_print_link_status(vptr);
1796 enable_flow_control_ability(vptr);
1799 * Re-enable auto-polling because SRCI will disable
1803 enable_mii_autopoll(regs);
1805 if (vptr->mii_status & VELOCITY_LINK_FAIL)
1806 netif_stop_queue(vptr->dev);
1808 netif_wake_queue(vptr->dev);
1811 if (status & ISR_MIBFI)
1812 velocity_update_hw_mibs(vptr);
1813 if (status & ISR_LSTEI)
1814 mac_rx_queue_wake(vptr->mac_regs);
1818 * velocity_free_tx_buf - free transmit buffer
1822 * Release an transmit buffer. If the buffer was preallocated then
1823 * recycle it, if not then unmap the buffer.
1826 static void velocity_free_tx_buf(struct velocity_info *vptr, struct velocity_td_info *tdinfo)
1828 struct sk_buff *skb = tdinfo->skb;
1832 * Don't unmap the pre-allocated tx_bufs
1834 if (tdinfo->skb_dma) {
1836 for (i = 0; i < tdinfo->nskb_dma; i++) {
1837 #ifdef VELOCITY_ZERO_COPY_SUPPORT
1838 pci_unmap_single(vptr->pdev, tdinfo->skb_dma[i], le16_to_cpu(td->tdesc1.len), PCI_DMA_TODEVICE);
1840 pci_unmap_single(vptr->pdev, tdinfo->skb_dma[i], skb->len, PCI_DMA_TODEVICE);
1842 tdinfo->skb_dma[i] = 0;
1845 dev_kfree_skb_irq(skb);
1850 * velocity_open - interface activation callback
1851 * @dev: network layer device to open
1853 * Called when the network layer brings the interface up. Returns
1854 * a negative posix error code on failure, or zero on success.
1856 * All the ring allocation and set up is done on open for this
1857 * adapter to minimise memory usage when inactive
1860 static int velocity_open(struct net_device *dev)
1862 struct velocity_info *vptr = netdev_priv(dev);
1865 ret = velocity_init_rings(vptr);
1869 ret = velocity_init_rd_ring(vptr);
1871 goto err_free_desc_rings;
1873 ret = velocity_init_td_ring(vptr);
1875 goto err_free_rd_ring;
1877 /* Ensure chip is running */
1878 pci_set_power_state(vptr->pdev, PCI_D0);
1880 velocity_init_registers(vptr, VELOCITY_INIT_COLD);
1882 ret = request_irq(vptr->pdev->irq, &velocity_intr, IRQF_SHARED,
1885 /* Power down the chip */
1886 pci_set_power_state(vptr->pdev, PCI_D3hot);
1887 goto err_free_td_ring;
1890 mac_enable_int(vptr->mac_regs);
1891 netif_start_queue(dev);
1892 vptr->flags |= VELOCITY_FLAGS_OPENED;
1897 velocity_free_td_ring(vptr);
1899 velocity_free_rd_ring(vptr);
1900 err_free_desc_rings:
1901 velocity_free_rings(vptr);
1906 * velocity_change_mtu - MTU change callback
1907 * @dev: network device
1908 * @new_mtu: desired MTU
1910 * Handle requests from the networking layer for MTU change on
1911 * this interface. It gets called on a change by the network layer.
1912 * Return zero for success or negative posix error code.
1915 static int velocity_change_mtu(struct net_device *dev, int new_mtu)
1917 struct velocity_info *vptr = netdev_priv(dev);
1918 unsigned long flags;
1919 int oldmtu = dev->mtu;
1922 if ((new_mtu < VELOCITY_MIN_MTU) || new_mtu > (VELOCITY_MAX_MTU)) {
1923 VELOCITY_PRT(MSG_LEVEL_ERR, KERN_NOTICE "%s: Invalid MTU.\n",
1928 if (!netif_running(dev)) {
1933 if (new_mtu != oldmtu) {
1934 spin_lock_irqsave(&vptr->lock, flags);
1936 netif_stop_queue(dev);
1937 velocity_shutdown(vptr);
1939 velocity_free_td_ring(vptr);
1940 velocity_free_rd_ring(vptr);
1944 ret = velocity_init_rd_ring(vptr);
1948 ret = velocity_init_td_ring(vptr);
1952 velocity_init_registers(vptr, VELOCITY_INIT_COLD);
1954 mac_enable_int(vptr->mac_regs);
1955 netif_start_queue(dev);
1957 spin_unlock_irqrestore(&vptr->lock, flags);
1964 * velocity_shutdown - shut down the chip
1965 * @vptr: velocity to deactivate
1967 * Shuts down the internal operations of the velocity and
1968 * disables interrupts, autopolling, transmit and receive
1971 static void velocity_shutdown(struct velocity_info *vptr)
1973 struct mac_regs __iomem * regs = vptr->mac_regs;
1974 mac_disable_int(regs);
1975 writel(CR0_STOP, ®s->CR0Set);
1976 writew(0xFFFF, ®s->TDCSRClr);
1977 writeb(0xFF, ®s->RDCSRClr);
1978 safe_disable_mii_autopoll(regs);
1979 mac_clear_isr(regs);
1983 * velocity_close - close adapter callback
1984 * @dev: network device
1986 * Callback from the network layer when the velocity is being
1987 * deactivated by the network layer
1990 static int velocity_close(struct net_device *dev)
1992 struct velocity_info *vptr = netdev_priv(dev);
1994 netif_stop_queue(dev);
1995 velocity_shutdown(vptr);
1997 if (vptr->flags & VELOCITY_FLAGS_WOL_ENABLED)
1998 velocity_get_ip(vptr);
2000 free_irq(dev->irq, dev);
2002 /* Power down the chip */
2003 pci_set_power_state(vptr->pdev, PCI_D3hot);
2005 /* Free the resources */
2006 velocity_free_td_ring(vptr);
2007 velocity_free_rd_ring(vptr);
2008 velocity_free_rings(vptr);
2010 vptr->flags &= (~VELOCITY_FLAGS_OPENED);
2015 * velocity_xmit - transmit packet callback
2016 * @skb: buffer to transmit
2017 * @dev: network device
2019 * Called by the networ layer to request a packet is queued to
2020 * the velocity. Returns zero on success.
2023 static int velocity_xmit(struct sk_buff *skb, struct net_device *dev)
2025 struct velocity_info *vptr = netdev_priv(dev);
2027 struct tx_desc *td_ptr;
2028 struct velocity_td_info *tdinfo;
2029 unsigned long flags;
2030 int pktlen = skb->len;
2036 if (skb->len < ETH_ZLEN) {
2037 if (skb_padto(skb, ETH_ZLEN))
2042 len = cpu_to_le16(pktlen);
2044 #ifdef VELOCITY_ZERO_COPY_SUPPORT
2045 if (skb_shinfo(skb)->nr_frags > 6 && __skb_linearize(skb)) {
2051 spin_lock_irqsave(&vptr->lock, flags);
2053 index = vptr->td_curr[qnum];
2054 td_ptr = &(vptr->td_rings[qnum][index]);
2055 tdinfo = &(vptr->td_infos[qnum][index]);
2057 td_ptr->tdesc1.TCR = TCR0_TIC;
2058 td_ptr->td_buf[0].size &= ~TD_QUEUE;
2060 #ifdef VELOCITY_ZERO_COPY_SUPPORT
2061 if (skb_shinfo(skb)->nr_frags > 0) {
2062 int nfrags = skb_shinfo(skb)->nr_frags;
2065 skb_copy_from_linear_data(skb, tdinfo->buf, skb->len);
2066 tdinfo->skb_dma[0] = tdinfo->buf_dma;
2067 td_ptr->tdesc0.len = len;
2068 td_ptr->td_buf[0].pa_low = cpu_to_le32(tdinfo->skb_dma[0]);
2069 td_ptr->td_buf[0].pa_high = 0;
2070 td_ptr->td_buf[0].size = len; /* queue is 0 anyway */
2071 tdinfo->nskb_dma = 1;
2074 tdinfo->nskb_dma = 0;
2075 tdinfo->skb_dma[i] = pci_map_single(vptr->pdev, skb->data,
2076 skb_headlen(skb), PCI_DMA_TODEVICE);
2078 td_ptr->tdesc0.len = len;
2080 /* FIXME: support 48bit DMA later */
2081 td_ptr->td_buf[i].pa_low = cpu_to_le32(tdinfo->skb_dma);
2082 td_ptr->td_buf[i].pa_high = 0;
2083 td_ptr->td_buf[i].size = cpu_to_le16(skb_headlen(skb));
2085 for (i = 0; i < nfrags; i++) {
2086 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
2087 void *addr = (void *)page_address(frag->page) + frag->page_offset;
2089 tdinfo->skb_dma[i + 1] = pci_map_single(vptr->pdev, addr, frag->size, PCI_DMA_TODEVICE);
2091 td_ptr->td_buf[i + 1].pa_low = cpu_to_le32(tdinfo->skb_dma[i + 1]);
2092 td_ptr->td_buf[i + 1].pa_high = 0;
2093 td_ptr->td_buf[i + 1].size = cpu_to_le16(frag->size);
2095 tdinfo->nskb_dma = i - 1;
2102 * Map the linear network buffer into PCI space and
2103 * add it to the transmit ring.
2106 tdinfo->skb_dma[0] = pci_map_single(vptr->pdev, skb->data, pktlen, PCI_DMA_TODEVICE);
2107 td_ptr->tdesc0.len = len;
2108 td_ptr->td_buf[0].pa_low = cpu_to_le32(tdinfo->skb_dma[0]);
2109 td_ptr->td_buf[0].pa_high = 0;
2110 td_ptr->td_buf[0].size = len;
2111 tdinfo->nskb_dma = 1;
2113 td_ptr->tdesc1.cmd = TCPLS_NORMAL + (tdinfo->nskb_dma + 1) * 16;
2115 if (vptr->vlgrp && vlan_tx_tag_present(skb)) {
2116 td_ptr->tdesc1.vlan = cpu_to_le16(vlan_tx_tag_get(skb));
2117 td_ptr->tdesc1.TCR |= TCR0_VETAG;
2121 * Handle hardware checksum
2123 if ((vptr->flags & VELOCITY_FLAGS_TX_CSUM)
2124 && (skb->ip_summed == CHECKSUM_PARTIAL)) {
2125 const struct iphdr *ip = ip_hdr(skb);
2126 if (ip->protocol == IPPROTO_TCP)
2127 td_ptr->tdesc1.TCR |= TCR0_TCPCK;
2128 else if (ip->protocol == IPPROTO_UDP)
2129 td_ptr->tdesc1.TCR |= (TCR0_UDPCK);
2130 td_ptr->tdesc1.TCR |= TCR0_IPCK;
2134 int prev = index - 1;
2137 prev = vptr->options.numtx - 1;
2138 td_ptr->tdesc0.len |= OWNED_BY_NIC;
2139 vptr->td_used[qnum]++;
2140 vptr->td_curr[qnum] = (index + 1) % vptr->options.numtx;
2142 if (AVAIL_TD(vptr, qnum) < 1)
2143 netif_stop_queue(dev);
2145 td_ptr = &(vptr->td_rings[qnum][prev]);
2146 td_ptr->td_buf[0].size |= TD_QUEUE;
2147 mac_tx_queue_wake(vptr->mac_regs, qnum);
2149 dev->trans_start = jiffies;
2150 spin_unlock_irqrestore(&vptr->lock, flags);
2152 return NETDEV_TX_OK;
2156 * velocity_intr - interrupt callback
2157 * @irq: interrupt number
2158 * @dev_instance: interrupting device
2160 * Called whenever an interrupt is generated by the velocity
2161 * adapter IRQ line. We may not be the source of the interrupt
2162 * and need to identify initially if we are, and if not exit as
2163 * efficiently as possible.
2166 static int velocity_intr(int irq, void *dev_instance)
2168 struct net_device *dev = dev_instance;
2169 struct velocity_info *vptr = netdev_priv(dev);
2174 spin_lock(&vptr->lock);
2175 isr_status = mac_read_isr(vptr->mac_regs);
2178 if (isr_status == 0) {
2179 spin_unlock(&vptr->lock);
2183 mac_disable_int(vptr->mac_regs);
2186 * Keep processing the ISR until we have completed
2187 * processing and the isr_status becomes zero
2190 while (isr_status != 0) {
2191 mac_write_isr(vptr->mac_regs, isr_status);
2192 if (isr_status & (~(ISR_PRXI | ISR_PPRXI | ISR_PTXI | ISR_PPTXI)))
2193 velocity_error(vptr, isr_status);
2194 if (isr_status & (ISR_PRXI | ISR_PPRXI))
2195 max_count += velocity_rx_srv(vptr, isr_status);
2196 if (isr_status & (ISR_PTXI | ISR_PPTXI))
2197 max_count += velocity_tx_srv(vptr, isr_status);
2198 isr_status = mac_read_isr(vptr->mac_regs);
2199 if (max_count > vptr->options.int_works)
2201 printk(KERN_WARNING "%s: excessive work at interrupt.\n",
2206 spin_unlock(&vptr->lock);
2207 mac_enable_int(vptr->mac_regs);
2214 * velocity_set_multi - filter list change callback
2215 * @dev: network device
2217 * Called by the network layer when the filter lists need to change
2218 * for a velocity adapter. Reload the CAMs with the new address
2222 static void velocity_set_multi(struct net_device *dev)
2224 struct velocity_info *vptr = netdev_priv(dev);
2225 struct mac_regs __iomem * regs = vptr->mac_regs;
2228 struct dev_mc_list *mclist;
2230 if (dev->flags & IFF_PROMISC) { /* Set promiscuous. */
2231 writel(0xffffffff, ®s->MARCAM[0]);
2232 writel(0xffffffff, ®s->MARCAM[4]);
2233 rx_mode = (RCR_AM | RCR_AB | RCR_PROM);
2234 } else if ((dev->mc_count > vptr->multicast_limit)
2235 || (dev->flags & IFF_ALLMULTI)) {
2236 writel(0xffffffff, ®s->MARCAM[0]);
2237 writel(0xffffffff, ®s->MARCAM[4]);
2238 rx_mode = (RCR_AM | RCR_AB);
2240 int offset = MCAM_SIZE - vptr->multicast_limit;
2241 mac_get_cam_mask(regs, vptr->mCAMmask);
2243 for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count; i++, mclist = mclist->next) {
2244 mac_set_cam(regs, i + offset, mclist->dmi_addr);
2245 vptr->mCAMmask[(offset + i) / 8] |= 1 << ((offset + i) & 7);
2248 mac_set_cam_mask(regs, vptr->mCAMmask);
2249 rx_mode = (RCR_AM | RCR_AB);
2251 if (dev->mtu > 1500)
2254 BYTE_REG_BITS_ON(rx_mode, ®s->RCR);
2259 * velocity_get_status - statistics callback
2260 * @dev: network device
2262 * Callback from the network layer to allow driver statistics
2263 * to be resynchronized with hardware collected state. In the
2264 * case of the velocity we need to pull the MIB counters from
2265 * the hardware into the counters before letting the network
2266 * layer display them.
2269 static struct net_device_stats *velocity_get_stats(struct net_device *dev)
2271 struct velocity_info *vptr = netdev_priv(dev);
2273 /* If the hardware is down, don't touch MII */
2274 if(!netif_running(dev))
2275 return &vptr->stats;
2277 spin_lock_irq(&vptr->lock);
2278 velocity_update_hw_mibs(vptr);
2279 spin_unlock_irq(&vptr->lock);
2281 vptr->stats.rx_packets = vptr->mib_counter[HW_MIB_ifRxAllPkts];
2282 vptr->stats.rx_errors = vptr->mib_counter[HW_MIB_ifRxErrorPkts];
2283 vptr->stats.rx_length_errors = vptr->mib_counter[HW_MIB_ifInRangeLengthErrors];
2285 // unsigned long rx_dropped; /* no space in linux buffers */
2286 vptr->stats.collisions = vptr->mib_counter[HW_MIB_ifTxEtherCollisions];
2287 /* detailed rx_errors: */
2288 // unsigned long rx_length_errors;
2289 // unsigned long rx_over_errors; /* receiver ring buff overflow */
2290 vptr->stats.rx_crc_errors = vptr->mib_counter[HW_MIB_ifRxPktCRCE];
2291 // unsigned long rx_frame_errors; /* recv'd frame alignment error */
2292 // unsigned long rx_fifo_errors; /* recv'r fifo overrun */
2293 // unsigned long rx_missed_errors; /* receiver missed packet */
2295 /* detailed tx_errors */
2296 // unsigned long tx_fifo_errors;
2298 return &vptr->stats;
2303 * velocity_ioctl - ioctl entry point
2304 * @dev: network device
2305 * @rq: interface request ioctl
2306 * @cmd: command code
2308 * Called when the user issues an ioctl request to the network
2309 * device in question. The velocity interface supports MII.
2312 static int velocity_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
2314 struct velocity_info *vptr = netdev_priv(dev);
2317 /* If we are asked for information and the device is power
2318 saving then we need to bring the device back up to talk to it */
2320 if (!netif_running(dev))
2321 pci_set_power_state(vptr->pdev, PCI_D0);
2324 case SIOCGMIIPHY: /* Get address of MII PHY in use. */
2325 case SIOCGMIIREG: /* Read MII PHY register. */
2326 case SIOCSMIIREG: /* Write to MII PHY register. */
2327 ret = velocity_mii_ioctl(dev, rq, cmd);
2333 if (!netif_running(dev))
2334 pci_set_power_state(vptr->pdev, PCI_D3hot);
2341 * Definition for our device driver. The PCI layer interface
2342 * uses this to handle all our card discover and plugging
2345 static struct pci_driver velocity_driver = {
2346 .name = VELOCITY_NAME,
2347 .id_table = velocity_id_table,
2348 .probe = velocity_found1,
2349 .remove = __devexit_p(velocity_remove1),
2351 .suspend = velocity_suspend,
2352 .resume = velocity_resume,
2357 * velocity_init_module - load time function
2359 * Called when the velocity module is loaded. The PCI driver
2360 * is registered with the PCI layer, and in turn will call
2361 * the probe functions for each velocity adapter installed
2365 static int __init velocity_init_module(void)
2369 velocity_register_notifier();
2370 ret = pci_register_driver(&velocity_driver);
2372 velocity_unregister_notifier();
2377 * velocity_cleanup - module unload
2379 * When the velocity hardware is unloaded this function is called.
2380 * It will clean up the notifiers and the unregister the PCI
2381 * driver interface for this hardware. This in turn cleans up
2382 * all discovered interfaces before returning from the function
2385 static void __exit velocity_cleanup_module(void)
2387 velocity_unregister_notifier();
2388 pci_unregister_driver(&velocity_driver);
2391 module_init(velocity_init_module);
2392 module_exit(velocity_cleanup_module);
2396 * MII access , media link mode setting functions
2401 * mii_init - set up MII
2402 * @vptr: velocity adapter
2403 * @mii_status: links tatus
2405 * Set up the PHY for the current link state.
2408 static void mii_init(struct velocity_info *vptr, u32 mii_status)
2412 switch (PHYID_GET_PHY_ID(vptr->phy_id)) {
2413 case PHYID_CICADA_CS8201:
2415 * Reset to hardware default
2417 MII_REG_BITS_OFF((ANAR_ASMDIR | ANAR_PAUSE), MII_REG_ANAR, vptr->mac_regs);
2419 * Turn on ECHODIS bit in NWay-forced full mode and turn it
2420 * off it in NWay-forced half mode for NWay-forced v.s.
2421 * legacy-forced issue.
2423 if (vptr->mii_status & VELOCITY_DUPLEX_FULL)
2424 MII_REG_BITS_ON(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs);
2426 MII_REG_BITS_OFF(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs);
2428 * Turn on Link/Activity LED enable bit for CIS8201
2430 MII_REG_BITS_ON(PLED_LALBE, MII_REG_PLED, vptr->mac_regs);
2432 case PHYID_VT3216_32BIT:
2433 case PHYID_VT3216_64BIT:
2435 * Reset to hardware default
2437 MII_REG_BITS_ON((ANAR_ASMDIR | ANAR_PAUSE), MII_REG_ANAR, vptr->mac_regs);
2439 * Turn on ECHODIS bit in NWay-forced full mode and turn it
2440 * off it in NWay-forced half mode for NWay-forced v.s.
2441 * legacy-forced issue
2443 if (vptr->mii_status & VELOCITY_DUPLEX_FULL)
2444 MII_REG_BITS_ON(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs);
2446 MII_REG_BITS_OFF(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs);
2449 case PHYID_MARVELL_1000:
2450 case PHYID_MARVELL_1000S:
2452 * Assert CRS on Transmit
2454 MII_REG_BITS_ON(PSCR_ACRSTX, MII_REG_PSCR, vptr->mac_regs);
2456 * Reset to hardware default
2458 MII_REG_BITS_ON((ANAR_ASMDIR | ANAR_PAUSE), MII_REG_ANAR, vptr->mac_regs);
2463 velocity_mii_read(vptr->mac_regs, MII_REG_BMCR, &BMCR);
2464 if (BMCR & BMCR_ISO) {
2466 velocity_mii_write(vptr->mac_regs, MII_REG_BMCR, BMCR);
2471 * safe_disable_mii_autopoll - autopoll off
2472 * @regs: velocity registers
2474 * Turn off the autopoll and wait for it to disable on the chip
2477 static void safe_disable_mii_autopoll(struct mac_regs __iomem * regs)
2481 /* turn off MAUTO */
2482 writeb(0, ®s->MIICR);
2483 for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
2485 if (BYTE_REG_BITS_IS_ON(MIISR_MIDLE, ®s->MIISR))
2491 * enable_mii_autopoll - turn on autopolling
2492 * @regs: velocity registers
2494 * Enable the MII link status autopoll feature on the Velocity
2495 * hardware. Wait for it to enable.
2498 static void enable_mii_autopoll(struct mac_regs __iomem * regs)
2502 writeb(0, &(regs->MIICR));
2503 writeb(MIIADR_SWMPL, ®s->MIIADR);
2505 for (ii = 0; ii < W_MAX_TIMEOUT; ii++) {
2507 if (BYTE_REG_BITS_IS_ON(MIISR_MIDLE, ®s->MIISR))
2511 writeb(MIICR_MAUTO, ®s->MIICR);
2513 for (ii = 0; ii < W_MAX_TIMEOUT; ii++) {
2515 if (!BYTE_REG_BITS_IS_ON(MIISR_MIDLE, ®s->MIISR))
2522 * velocity_mii_read - read MII data
2523 * @regs: velocity registers
2524 * @index: MII register index
2525 * @data: buffer for received data
2527 * Perform a single read of an MII 16bit register. Returns zero
2528 * on success or -ETIMEDOUT if the PHY did not respond.
2531 static int velocity_mii_read(struct mac_regs __iomem *regs, u8 index, u16 *data)
2536 * Disable MIICR_MAUTO, so that mii addr can be set normally
2538 safe_disable_mii_autopoll(regs);
2540 writeb(index, ®s->MIIADR);
2542 BYTE_REG_BITS_ON(MIICR_RCMD, ®s->MIICR);
2544 for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
2545 if (!(readb(®s->MIICR) & MIICR_RCMD))
2549 *data = readw(®s->MIIDATA);
2551 enable_mii_autopoll(regs);
2552 if (ww == W_MAX_TIMEOUT)
2558 * velocity_mii_write - write MII data
2559 * @regs: velocity registers
2560 * @index: MII register index
2561 * @data: 16bit data for the MII register
2563 * Perform a single write to an MII 16bit register. Returns zero
2564 * on success or -ETIMEDOUT if the PHY did not respond.
2567 static int velocity_mii_write(struct mac_regs __iomem *regs, u8 mii_addr, u16 data)
2572 * Disable MIICR_MAUTO, so that mii addr can be set normally
2574 safe_disable_mii_autopoll(regs);
2576 /* MII reg offset */
2577 writeb(mii_addr, ®s->MIIADR);
2579 writew(data, ®s->MIIDATA);
2581 /* turn on MIICR_WCMD */
2582 BYTE_REG_BITS_ON(MIICR_WCMD, ®s->MIICR);
2584 /* W_MAX_TIMEOUT is the timeout period */
2585 for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
2587 if (!(readb(®s->MIICR) & MIICR_WCMD))
2590 enable_mii_autopoll(regs);
2592 if (ww == W_MAX_TIMEOUT)
2598 * velocity_get_opt_media_mode - get media selection
2599 * @vptr: velocity adapter
2601 * Get the media mode stored in EEPROM or module options and load
2602 * mii_status accordingly. The requested link state information
2606 static u32 velocity_get_opt_media_mode(struct velocity_info *vptr)
2610 switch (vptr->options.spd_dpx) {
2612 status = VELOCITY_AUTONEG_ENABLE;
2614 case SPD_DPX_100_FULL:
2615 status = VELOCITY_SPEED_100 | VELOCITY_DUPLEX_FULL;
2617 case SPD_DPX_10_FULL:
2618 status = VELOCITY_SPEED_10 | VELOCITY_DUPLEX_FULL;
2620 case SPD_DPX_100_HALF:
2621 status = VELOCITY_SPEED_100;
2623 case SPD_DPX_10_HALF:
2624 status = VELOCITY_SPEED_10;
2627 vptr->mii_status = status;
2632 * mii_set_auto_on - autonegotiate on
2635 * Enable autonegotation on this interface
2638 static void mii_set_auto_on(struct velocity_info *vptr)
2640 if (MII_REG_BITS_IS_ON(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs))
2641 MII_REG_BITS_ON(BMCR_REAUTO, MII_REG_BMCR, vptr->mac_regs);
2643 MII_REG_BITS_ON(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs);
2648 static void mii_set_auto_off(struct velocity_info * vptr)
2650 MII_REG_BITS_OFF(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs);
2655 * set_mii_flow_control - flow control setup
2656 * @vptr: velocity interface
2658 * Set up the flow control on this interface according to
2659 * the supplied user/eeprom options.
2662 static void set_mii_flow_control(struct velocity_info *vptr)
2664 /*Enable or Disable PAUSE in ANAR */
2665 switch (vptr->options.flow_cntl) {
2667 MII_REG_BITS_OFF(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs);
2668 MII_REG_BITS_ON(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs);
2672 MII_REG_BITS_ON(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs);
2673 MII_REG_BITS_ON(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs);
2676 case FLOW_CNTL_TX_RX:
2677 MII_REG_BITS_ON(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs);
2678 MII_REG_BITS_ON(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs);
2681 case FLOW_CNTL_DISABLE:
2682 MII_REG_BITS_OFF(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs);
2683 MII_REG_BITS_OFF(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs);
2691 * velocity_set_media_mode - set media mode
2692 * @mii_status: old MII link state
2694 * Check the media link state and configure the flow control
2695 * PHY and also velocity hardware setup accordingly. In particular
2696 * we need to set up CD polling and frame bursting.
2699 static int velocity_set_media_mode(struct velocity_info *vptr, u32 mii_status)
2702 struct mac_regs __iomem * regs = vptr->mac_regs;
2704 vptr->mii_status = mii_check_media_mode(vptr->mac_regs);
2705 curr_status = vptr->mii_status & (~VELOCITY_LINK_FAIL);
2707 /* Set mii link status */
2708 set_mii_flow_control(vptr);
2711 Check if new status is consisent with current status
2712 if (((mii_status & curr_status) & VELOCITY_AUTONEG_ENABLE)
2713 || (mii_status==curr_status)) {
2714 vptr->mii_status=mii_check_media_mode(vptr->mac_regs);
2715 vptr->mii_status=check_connection_type(vptr->mac_regs);
2716 VELOCITY_PRT(MSG_LEVEL_INFO, "Velocity link no change\n");
2721 if (PHYID_GET_PHY_ID(vptr->phy_id) == PHYID_CICADA_CS8201) {
2722 MII_REG_BITS_ON(AUXCR_MDPPS, MII_REG_AUXCR, vptr->mac_regs);
2726 * If connection type is AUTO
2728 if (mii_status & VELOCITY_AUTONEG_ENABLE) {
2729 VELOCITY_PRT(MSG_LEVEL_INFO, "Velocity is AUTO mode\n");
2730 /* clear force MAC mode bit */
2731 BYTE_REG_BITS_OFF(CHIPGCR_FCMODE, ®s->CHIPGCR);
2732 /* set duplex mode of MAC according to duplex mode of MII */
2733 MII_REG_BITS_ON(ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10, MII_REG_ANAR, vptr->mac_regs);
2734 MII_REG_BITS_ON(G1000CR_1000FD | G1000CR_1000, MII_REG_G1000CR, vptr->mac_regs);
2735 MII_REG_BITS_ON(BMCR_SPEED1G, MII_REG_BMCR, vptr->mac_regs);
2737 /* enable AUTO-NEGO mode */
2738 mii_set_auto_on(vptr);
2744 * 1. if it's 3119, disable frame bursting in halfduplex mode
2745 * and enable it in fullduplex mode
2746 * 2. set correct MII/GMII and half/full duplex mode in CHIPGCR
2747 * 3. only enable CD heart beat counter in 10HD mode
2750 /* set force MAC mode bit */
2751 BYTE_REG_BITS_ON(CHIPGCR_FCMODE, ®s->CHIPGCR);
2753 CHIPGCR = readb(®s->CHIPGCR);
2754 CHIPGCR &= ~CHIPGCR_FCGMII;
2756 if (mii_status & VELOCITY_DUPLEX_FULL) {
2757 CHIPGCR |= CHIPGCR_FCFDX;
2758 writeb(CHIPGCR, ®s->CHIPGCR);
2759 VELOCITY_PRT(MSG_LEVEL_INFO, "set Velocity to forced full mode\n");
2760 if (vptr->rev_id < REV_ID_VT3216_A0)
2761 BYTE_REG_BITS_OFF(TCR_TB2BDIS, ®s->TCR);
2763 CHIPGCR &= ~CHIPGCR_FCFDX;
2764 VELOCITY_PRT(MSG_LEVEL_INFO, "set Velocity to forced half mode\n");
2765 writeb(CHIPGCR, ®s->CHIPGCR);
2766 if (vptr->rev_id < REV_ID_VT3216_A0)
2767 BYTE_REG_BITS_ON(TCR_TB2BDIS, ®s->TCR);
2770 MII_REG_BITS_OFF(G1000CR_1000FD | G1000CR_1000, MII_REG_G1000CR, vptr->mac_regs);
2772 if (!(mii_status & VELOCITY_DUPLEX_FULL) && (mii_status & VELOCITY_SPEED_10)) {
2773 BYTE_REG_BITS_OFF(TESTCFG_HBDIS, ®s->TESTCFG);
2775 BYTE_REG_BITS_ON(TESTCFG_HBDIS, ®s->TESTCFG);
2777 /* MII_REG_BITS_OFF(BMCR_SPEED1G, MII_REG_BMCR, vptr->mac_regs); */
2778 velocity_mii_read(vptr->mac_regs, MII_REG_ANAR, &ANAR);
2779 ANAR &= (~(ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10));
2780 if (mii_status & VELOCITY_SPEED_100) {
2781 if (mii_status & VELOCITY_DUPLEX_FULL)
2786 if (mii_status & VELOCITY_DUPLEX_FULL)
2791 velocity_mii_write(vptr->mac_regs, MII_REG_ANAR, ANAR);
2792 /* enable AUTO-NEGO mode */
2793 mii_set_auto_on(vptr);
2794 /* MII_REG_BITS_ON(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs); */
2796 /* vptr->mii_status=mii_check_media_mode(vptr->mac_regs); */
2797 /* vptr->mii_status=check_connection_type(vptr->mac_regs); */
2798 return VELOCITY_LINK_CHANGE;
2802 * mii_check_media_mode - check media state
2803 * @regs: velocity registers
2805 * Check the current MII status and determine the link status
2809 static u32 mii_check_media_mode(struct mac_regs __iomem * regs)
2814 if (!MII_REG_BITS_IS_ON(BMSR_LNK, MII_REG_BMSR, regs))
2815 status |= VELOCITY_LINK_FAIL;
2817 if (MII_REG_BITS_IS_ON(G1000CR_1000FD, MII_REG_G1000CR, regs))
2818 status |= VELOCITY_SPEED_1000 | VELOCITY_DUPLEX_FULL;
2819 else if (MII_REG_BITS_IS_ON(G1000CR_1000, MII_REG_G1000CR, regs))
2820 status |= (VELOCITY_SPEED_1000);
2822 velocity_mii_read(regs, MII_REG_ANAR, &ANAR);
2823 if (ANAR & ANAR_TXFD)
2824 status |= (VELOCITY_SPEED_100 | VELOCITY_DUPLEX_FULL);
2825 else if (ANAR & ANAR_TX)
2826 status |= VELOCITY_SPEED_100;
2827 else if (ANAR & ANAR_10FD)
2828 status |= (VELOCITY_SPEED_10 | VELOCITY_DUPLEX_FULL);
2830 status |= (VELOCITY_SPEED_10);
2833 if (MII_REG_BITS_IS_ON(BMCR_AUTO, MII_REG_BMCR, regs)) {
2834 velocity_mii_read(regs, MII_REG_ANAR, &ANAR);
2835 if ((ANAR & (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10))
2836 == (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10)) {
2837 if (MII_REG_BITS_IS_ON(G1000CR_1000 | G1000CR_1000FD, MII_REG_G1000CR, regs))
2838 status |= VELOCITY_AUTONEG_ENABLE;
2845 static u32 check_connection_type(struct mac_regs __iomem * regs)
2850 PHYSR0 = readb(®s->PHYSR0);
2853 if (!(PHYSR0 & PHYSR0_LINKGD))
2854 status|=VELOCITY_LINK_FAIL;
2857 if (PHYSR0 & PHYSR0_FDPX)
2858 status |= VELOCITY_DUPLEX_FULL;
2860 if (PHYSR0 & PHYSR0_SPDG)
2861 status |= VELOCITY_SPEED_1000;
2862 else if (PHYSR0 & PHYSR0_SPD10)
2863 status |= VELOCITY_SPEED_10;
2865 status |= VELOCITY_SPEED_100;
2867 if (MII_REG_BITS_IS_ON(BMCR_AUTO, MII_REG_BMCR, regs)) {
2868 velocity_mii_read(regs, MII_REG_ANAR, &ANAR);
2869 if ((ANAR & (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10))
2870 == (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10)) {
2871 if (MII_REG_BITS_IS_ON(G1000CR_1000 | G1000CR_1000FD, MII_REG_G1000CR, regs))
2872 status |= VELOCITY_AUTONEG_ENABLE;
2880 * enable_flow_control_ability - flow control
2881 * @vptr: veloity to configure
2883 * Set up flow control according to the flow control options
2884 * determined by the eeprom/configuration.
2887 static void enable_flow_control_ability(struct velocity_info *vptr)
2890 struct mac_regs __iomem * regs = vptr->mac_regs;
2892 switch (vptr->options.flow_cntl) {
2894 case FLOW_CNTL_DEFAULT:
2895 if (BYTE_REG_BITS_IS_ON(PHYSR0_RXFLC, ®s->PHYSR0))
2896 writel(CR0_FDXRFCEN, ®s->CR0Set);
2898 writel(CR0_FDXRFCEN, ®s->CR0Clr);
2900 if (BYTE_REG_BITS_IS_ON(PHYSR0_TXFLC, ®s->PHYSR0))
2901 writel(CR0_FDXTFCEN, ®s->CR0Set);
2903 writel(CR0_FDXTFCEN, ®s->CR0Clr);
2907 writel(CR0_FDXTFCEN, ®s->CR0Set);
2908 writel(CR0_FDXRFCEN, ®s->CR0Clr);
2912 writel(CR0_FDXRFCEN, ®s->CR0Set);
2913 writel(CR0_FDXTFCEN, ®s->CR0Clr);
2916 case FLOW_CNTL_TX_RX:
2917 writel(CR0_FDXTFCEN, ®s->CR0Set);
2918 writel(CR0_FDXRFCEN, ®s->CR0Set);
2921 case FLOW_CNTL_DISABLE:
2922 writel(CR0_FDXRFCEN, ®s->CR0Clr);
2923 writel(CR0_FDXTFCEN, ®s->CR0Clr);
2934 * velocity_ethtool_up - pre hook for ethtool
2935 * @dev: network device
2937 * Called before an ethtool operation. We need to make sure the
2938 * chip is out of D3 state before we poke at it.
2941 static int velocity_ethtool_up(struct net_device *dev)
2943 struct velocity_info *vptr = netdev_priv(dev);
2944 if (!netif_running(dev))
2945 pci_set_power_state(vptr->pdev, PCI_D0);
2950 * velocity_ethtool_down - post hook for ethtool
2951 * @dev: network device
2953 * Called after an ethtool operation. Restore the chip back to D3
2954 * state if it isn't running.
2957 static void velocity_ethtool_down(struct net_device *dev)
2959 struct velocity_info *vptr = netdev_priv(dev);
2960 if (!netif_running(dev))
2961 pci_set_power_state(vptr->pdev, PCI_D3hot);
2964 static int velocity_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
2966 struct velocity_info *vptr = netdev_priv(dev);
2967 struct mac_regs __iomem * regs = vptr->mac_regs;
2969 status = check_connection_type(vptr->mac_regs);
2971 cmd->supported = SUPPORTED_TP |
2973 SUPPORTED_10baseT_Half |
2974 SUPPORTED_10baseT_Full |
2975 SUPPORTED_100baseT_Half |
2976 SUPPORTED_100baseT_Full |
2977 SUPPORTED_1000baseT_Half |
2978 SUPPORTED_1000baseT_Full;
2979 if (status & VELOCITY_SPEED_1000)
2980 cmd->speed = SPEED_1000;
2981 else if (status & VELOCITY_SPEED_100)
2982 cmd->speed = SPEED_100;
2984 cmd->speed = SPEED_10;
2985 cmd->autoneg = (status & VELOCITY_AUTONEG_ENABLE) ? AUTONEG_ENABLE : AUTONEG_DISABLE;
2986 cmd->port = PORT_TP;
2987 cmd->transceiver = XCVR_INTERNAL;
2988 cmd->phy_address = readb(®s->MIIADR) & 0x1F;
2990 if (status & VELOCITY_DUPLEX_FULL)
2991 cmd->duplex = DUPLEX_FULL;
2993 cmd->duplex = DUPLEX_HALF;
2998 static int velocity_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
3000 struct velocity_info *vptr = netdev_priv(dev);
3005 curr_status = check_connection_type(vptr->mac_regs);
3006 curr_status &= (~VELOCITY_LINK_FAIL);
3008 new_status |= ((cmd->autoneg) ? VELOCITY_AUTONEG_ENABLE : 0);
3009 new_status |= ((cmd->speed == SPEED_100) ? VELOCITY_SPEED_100 : 0);
3010 new_status |= ((cmd->speed == SPEED_10) ? VELOCITY_SPEED_10 : 0);
3011 new_status |= ((cmd->duplex == DUPLEX_FULL) ? VELOCITY_DUPLEX_FULL : 0);
3013 if ((new_status & VELOCITY_AUTONEG_ENABLE) && (new_status != (curr_status | VELOCITY_AUTONEG_ENABLE)))
3016 velocity_set_media_mode(vptr, new_status);
3021 static u32 velocity_get_link(struct net_device *dev)
3023 struct velocity_info *vptr = netdev_priv(dev);
3024 struct mac_regs __iomem * regs = vptr->mac_regs;
3025 return BYTE_REG_BITS_IS_ON(PHYSR0_LINKGD, ®s->PHYSR0) ? 1 : 0;
3028 static void velocity_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
3030 struct velocity_info *vptr = netdev_priv(dev);
3031 strcpy(info->driver, VELOCITY_NAME);
3032 strcpy(info->version, VELOCITY_VERSION);
3033 strcpy(info->bus_info, pci_name(vptr->pdev));
3036 static void velocity_ethtool_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
3038 struct velocity_info *vptr = netdev_priv(dev);
3039 wol->supported = WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_ARP;
3040 wol->wolopts |= WAKE_MAGIC;
3042 if (vptr->wol_opts & VELOCITY_WOL_PHY)
3043 wol.wolopts|=WAKE_PHY;
3045 if (vptr->wol_opts & VELOCITY_WOL_UCAST)
3046 wol->wolopts |= WAKE_UCAST;
3047 if (vptr->wol_opts & VELOCITY_WOL_ARP)
3048 wol->wolopts |= WAKE_ARP;
3049 memcpy(&wol->sopass, vptr->wol_passwd, 6);
3052 static int velocity_ethtool_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
3054 struct velocity_info *vptr = netdev_priv(dev);
3056 if (!(wol->wolopts & (WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_ARP)))
3058 vptr->wol_opts = VELOCITY_WOL_MAGIC;
3061 if (wol.wolopts & WAKE_PHY) {
3062 vptr->wol_opts|=VELOCITY_WOL_PHY;
3063 vptr->flags |=VELOCITY_FLAGS_WOL_ENABLED;
3067 if (wol->wolopts & WAKE_MAGIC) {
3068 vptr->wol_opts |= VELOCITY_WOL_MAGIC;
3069 vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED;
3071 if (wol->wolopts & WAKE_UCAST) {
3072 vptr->wol_opts |= VELOCITY_WOL_UCAST;
3073 vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED;
3075 if (wol->wolopts & WAKE_ARP) {
3076 vptr->wol_opts |= VELOCITY_WOL_ARP;
3077 vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED;
3079 memcpy(vptr->wol_passwd, wol->sopass, 6);
3083 static u32 velocity_get_msglevel(struct net_device *dev)
3088 static void velocity_set_msglevel(struct net_device *dev, u32 value)
3093 static const struct ethtool_ops velocity_ethtool_ops = {
3094 .get_settings = velocity_get_settings,
3095 .set_settings = velocity_set_settings,
3096 .get_drvinfo = velocity_get_drvinfo,
3097 .get_wol = velocity_ethtool_get_wol,
3098 .set_wol = velocity_ethtool_set_wol,
3099 .get_msglevel = velocity_get_msglevel,
3100 .set_msglevel = velocity_set_msglevel,
3101 .get_link = velocity_get_link,
3102 .begin = velocity_ethtool_up,
3103 .complete = velocity_ethtool_down
3107 * velocity_mii_ioctl - MII ioctl handler
3108 * @dev: network device
3109 * @ifr: the ifreq block for the ioctl
3112 * Process MII requests made via ioctl from the network layer. These
3113 * are used by tools like kudzu to interrogate the link state of the
3117 static int velocity_mii_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
3119 struct velocity_info *vptr = netdev_priv(dev);
3120 struct mac_regs __iomem * regs = vptr->mac_regs;
3121 unsigned long flags;
3122 struct mii_ioctl_data *miidata = if_mii(ifr);
3127 miidata->phy_id = readb(®s->MIIADR) & 0x1f;
3130 if (!capable(CAP_NET_ADMIN))
3132 if(velocity_mii_read(vptr->mac_regs, miidata->reg_num & 0x1f, &(miidata->val_out)) < 0)
3136 if (!capable(CAP_NET_ADMIN))
3138 spin_lock_irqsave(&vptr->lock, flags);
3139 err = velocity_mii_write(vptr->mac_regs, miidata->reg_num & 0x1f, miidata->val_in);
3140 spin_unlock_irqrestore(&vptr->lock, flags);
3141 check_connection_type(vptr->mac_regs);
3154 * velocity_save_context - save registers
3156 * @context: buffer for stored context
3158 * Retrieve the current configuration from the velocity hardware
3159 * and stash it in the context structure, for use by the context
3160 * restore functions. This allows us to save things we need across
3164 static void velocity_save_context(struct velocity_info *vptr, struct velocity_context * context)
3166 struct mac_regs __iomem * regs = vptr->mac_regs;
3168 u8 __iomem *ptr = (u8 __iomem *)regs;
3170 for (i = MAC_REG_PAR; i < MAC_REG_CR0_CLR; i += 4)
3171 *((u32 *) (context->mac_reg + i)) = readl(ptr + i);
3173 for (i = MAC_REG_MAR; i < MAC_REG_TDCSR_CLR; i += 4)
3174 *((u32 *) (context->mac_reg + i)) = readl(ptr + i);
3176 for (i = MAC_REG_RDBASE_LO; i < MAC_REG_FIFO_TEST0; i += 4)
3177 *((u32 *) (context->mac_reg + i)) = readl(ptr + i);
3182 * velocity_restore_context - restore registers
3184 * @context: buffer for stored context
3186 * Reload the register configuration from the velocity context
3187 * created by velocity_save_context.
3190 static void velocity_restore_context(struct velocity_info *vptr, struct velocity_context *context)
3192 struct mac_regs __iomem * regs = vptr->mac_regs;
3194 u8 __iomem *ptr = (u8 __iomem *)regs;
3196 for (i = MAC_REG_PAR; i < MAC_REG_CR0_SET; i += 4) {
3197 writel(*((u32 *) (context->mac_reg + i)), ptr + i);
3201 for (i = MAC_REG_CR1_SET; i < MAC_REG_CR0_CLR; i++) {
3203 writeb(~(*((u8 *) (context->mac_reg + i))), ptr + i + 4);
3205 writeb(*((u8 *) (context->mac_reg + i)), ptr + i);
3208 for (i = MAC_REG_MAR; i < MAC_REG_IMR; i += 4) {
3209 writel(*((u32 *) (context->mac_reg + i)), ptr + i);
3212 for (i = MAC_REG_RDBASE_LO; i < MAC_REG_FIFO_TEST0; i += 4) {
3213 writel(*((u32 *) (context->mac_reg + i)), ptr + i);
3216 for (i = MAC_REG_TDCSR_SET; i <= MAC_REG_RDCSR_SET; i++) {
3217 writeb(*((u8 *) (context->mac_reg + i)), ptr + i);
3223 * wol_calc_crc - WOL CRC
3224 * @pattern: data pattern
3225 * @mask_pattern: mask
3227 * Compute the wake on lan crc hashes for the packet header
3228 * we are interested in.
3231 static u16 wol_calc_crc(int size, u8 * pattern, u8 *mask_pattern)
3237 for (i = 0; i < size; i++) {
3238 mask = mask_pattern[i];
3240 /* Skip this loop if the mask equals to zero */
3244 for (j = 0; j < 8; j++) {
3245 if ((mask & 0x01) == 0) {
3250 crc = crc_ccitt(crc, &(pattern[i * 8 + j]), 1);
3253 /* Finally, invert the result once to get the correct data */
3255 return bitrev32(crc) >> 16;
3259 * velocity_set_wol - set up for wake on lan
3260 * @vptr: velocity to set WOL status on
3262 * Set a card up for wake on lan either by unicast or by
3265 * FIXME: check static buffer is safe here
3268 static int velocity_set_wol(struct velocity_info *vptr)
3270 struct mac_regs __iomem * regs = vptr->mac_regs;
3274 static u32 mask_pattern[2][4] = {
3275 {0x00203000, 0x000003C0, 0x00000000, 0x0000000}, /* ARP */
3276 {0xfffff000, 0xffffffff, 0xffffffff, 0x000ffff} /* Magic Packet */
3279 writew(0xFFFF, ®s->WOLCRClr);
3280 writeb(WOLCFG_SAB | WOLCFG_SAM, ®s->WOLCFGSet);
3281 writew(WOLCR_MAGIC_EN, ®s->WOLCRSet);
3284 if (vptr->wol_opts & VELOCITY_WOL_PHY)
3285 writew((WOLCR_LINKON_EN|WOLCR_LINKOFF_EN), ®s->WOLCRSet);
3288 if (vptr->wol_opts & VELOCITY_WOL_UCAST) {
3289 writew(WOLCR_UNICAST_EN, ®s->WOLCRSet);
3292 if (vptr->wol_opts & VELOCITY_WOL_ARP) {
3293 struct arp_packet *arp = (struct arp_packet *) buf;
3295 memset(buf, 0, sizeof(struct arp_packet) + 7);
3297 for (i = 0; i < 4; i++)
3298 writel(mask_pattern[0][i], ®s->ByteMask[0][i]);
3300 arp->type = htons(ETH_P_ARP);
3301 arp->ar_op = htons(1);
3303 memcpy(arp->ar_tip, vptr->ip_addr, 4);
3305 crc = wol_calc_crc((sizeof(struct arp_packet) + 7) / 8, buf,
3306 (u8 *) & mask_pattern[0][0]);
3308 writew(crc, ®s->PatternCRC[0]);
3309 writew(WOLCR_ARP_EN, ®s->WOLCRSet);
3312 BYTE_REG_BITS_ON(PWCFG_WOLTYPE, ®s->PWCFGSet);
3313 BYTE_REG_BITS_ON(PWCFG_LEGACY_WOLEN, ®s->PWCFGSet);
3315 writew(0x0FFF, ®s->WOLSRClr);
3317 if (vptr->mii_status & VELOCITY_AUTONEG_ENABLE) {
3318 if (PHYID_GET_PHY_ID(vptr->phy_id) == PHYID_CICADA_CS8201)
3319 MII_REG_BITS_ON(AUXCR_MDPPS, MII_REG_AUXCR, vptr->mac_regs);
3321 MII_REG_BITS_OFF(G1000CR_1000FD | G1000CR_1000, MII_REG_G1000CR, vptr->mac_regs);
3324 if (vptr->mii_status & VELOCITY_SPEED_1000)
3325 MII_REG_BITS_ON(BMCR_REAUTO, MII_REG_BMCR, vptr->mac_regs);
3327 BYTE_REG_BITS_ON(CHIPGCR_FCMODE, ®s->CHIPGCR);
3331 GCR = readb(®s->CHIPGCR);
3332 GCR = (GCR & ~CHIPGCR_FCGMII) | CHIPGCR_FCFDX;
3333 writeb(GCR, ®s->CHIPGCR);
3336 BYTE_REG_BITS_OFF(ISR_PWEI, ®s->ISR);
3337 /* Turn on SWPTAG just before entering power mode */
3338 BYTE_REG_BITS_ON(STICKHW_SWPTAG, ®s->STICKHW);
3339 /* Go to bed ..... */
3340 BYTE_REG_BITS_ON((STICKHW_DS1 | STICKHW_DS0), ®s->STICKHW);
3345 static int velocity_suspend(struct pci_dev *pdev, pm_message_t state)
3347 struct net_device *dev = pci_get_drvdata(pdev);
3348 struct velocity_info *vptr = netdev_priv(dev);
3349 unsigned long flags;
3351 if(!netif_running(vptr->dev))
3354 netif_device_detach(vptr->dev);
3356 spin_lock_irqsave(&vptr->lock, flags);
3357 pci_save_state(pdev);
3359 if (vptr->flags & VELOCITY_FLAGS_WOL_ENABLED) {
3360 velocity_get_ip(vptr);
3361 velocity_save_context(vptr, &vptr->context);
3362 velocity_shutdown(vptr);
3363 velocity_set_wol(vptr);
3364 pci_enable_wake(pdev, PCI_D3hot, 1);
3365 pci_set_power_state(pdev, PCI_D3hot);
3367 velocity_save_context(vptr, &vptr->context);
3368 velocity_shutdown(vptr);
3369 pci_disable_device(pdev);
3370 pci_set_power_state(pdev, pci_choose_state(pdev, state));
3373 pci_set_power_state(pdev, pci_choose_state(pdev, state));
3375 spin_unlock_irqrestore(&vptr->lock, flags);
3379 static int velocity_resume(struct pci_dev *pdev)
3381 struct net_device *dev = pci_get_drvdata(pdev);
3382 struct velocity_info *vptr = netdev_priv(dev);
3383 unsigned long flags;
3386 if(!netif_running(vptr->dev))
3389 pci_set_power_state(pdev, PCI_D0);
3390 pci_enable_wake(pdev, 0, 0);
3391 pci_restore_state(pdev);
3393 mac_wol_reset(vptr->mac_regs);
3395 spin_lock_irqsave(&vptr->lock, flags);
3396 velocity_restore_context(vptr, &vptr->context);
3397 velocity_init_registers(vptr, VELOCITY_INIT_WOL);
3398 mac_disable_int(vptr->mac_regs);
3400 velocity_tx_srv(vptr, 0);
3402 for (i = 0; i < vptr->num_txq; i++) {
3403 if (vptr->td_used[i]) {
3404 mac_tx_queue_wake(vptr->mac_regs, i);
3408 mac_enable_int(vptr->mac_regs);
3409 spin_unlock_irqrestore(&vptr->lock, flags);
3410 netif_device_attach(vptr->dev);
3417 static int velocity_netdev_event(struct notifier_block *nb, unsigned long notification, void *ptr)
3419 struct in_ifaddr *ifa = (struct in_ifaddr *) ptr;
3420 struct net_device *dev = ifa->ifa_dev->dev;
3421 struct velocity_info *vptr;
3422 unsigned long flags;
3424 if (dev_net(dev) != &init_net)
3427 spin_lock_irqsave(&velocity_dev_list_lock, flags);
3428 list_for_each_entry(vptr, &velocity_dev_list, list) {
3429 if (vptr->dev == dev) {
3430 velocity_get_ip(vptr);
3434 spin_unlock_irqrestore(&velocity_dev_list_lock, flags);