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@lxorguk.ukuu.org.uk>
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 irqreturn_t 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, const 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, const 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, const 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);
665 static void velocity_init_rx_ring_indexes(struct velocity_info *vptr)
667 vptr->rx.dirty = vptr->rx.filled = vptr->rx.curr = 0;
671 * velocity_rx_reset - handle a receive reset
672 * @vptr: velocity we are resetting
674 * Reset the ownership and status for the receive ring side.
675 * Hand all the receive queue to the NIC.
678 static void velocity_rx_reset(struct velocity_info *vptr)
681 struct mac_regs __iomem * regs = vptr->mac_regs;
684 velocity_init_rx_ring_indexes(vptr);
687 * Init state, all RD entries belong to the NIC
689 for (i = 0; i < vptr->options.numrx; ++i)
690 vptr->rx.ring[i].rdesc0.len |= OWNED_BY_NIC;
692 writew(vptr->options.numrx, ®s->RBRDU);
693 writel(vptr->rx.pool_dma, ®s->RDBaseLo);
694 writew(0, ®s->RDIdx);
695 writew(vptr->options.numrx - 1, ®s->RDCSize);
699 * velocity_init_registers - initialise MAC registers
700 * @vptr: velocity to init
701 * @type: type of initialisation (hot or cold)
703 * Initialise the MAC on a reset or on first set up on the
707 static void velocity_init_registers(struct velocity_info *vptr,
708 enum velocity_init_type type)
710 struct mac_regs __iomem * regs = vptr->mac_regs;
716 case VELOCITY_INIT_RESET:
717 case VELOCITY_INIT_WOL:
719 netif_stop_queue(vptr->dev);
722 * Reset RX to prevent RX pointer not on the 4X location
724 velocity_rx_reset(vptr);
725 mac_rx_queue_run(regs);
726 mac_rx_queue_wake(regs);
728 mii_status = velocity_get_opt_media_mode(vptr);
729 if (velocity_set_media_mode(vptr, mii_status) != VELOCITY_LINK_CHANGE) {
730 velocity_print_link_status(vptr);
731 if (!(vptr->mii_status & VELOCITY_LINK_FAIL))
732 netif_wake_queue(vptr->dev);
735 enable_flow_control_ability(vptr);
738 writel(CR0_STOP, ®s->CR0Clr);
739 writel((CR0_DPOLL | CR0_TXON | CR0_RXON | CR0_STRT),
744 case VELOCITY_INIT_COLD:
749 velocity_soft_reset(vptr);
752 mac_eeprom_reload(regs);
753 for (i = 0; i < 6; i++) {
754 writeb(vptr->dev->dev_addr[i], &(regs->PAR[i]));
757 * clear Pre_ACPI bit.
759 BYTE_REG_BITS_OFF(CFGA_PACPI, &(regs->CFGA));
760 mac_set_rx_thresh(regs, vptr->options.rx_thresh);
761 mac_set_dma_length(regs, vptr->options.DMA_length);
763 writeb(WOLCFG_SAM | WOLCFG_SAB, ®s->WOLCFGSet);
765 * Back off algorithm use original IEEE standard
767 BYTE_REG_BITS_SET(CFGB_OFSET, (CFGB_CRANDOM | CFGB_CAP | CFGB_MBA | CFGB_BAKOPT), ®s->CFGB);
772 velocity_init_cam_filter(vptr);
775 * Set packet filter: Receive directed and broadcast address
777 velocity_set_multi(vptr->dev);
780 * Enable MII auto-polling
782 enable_mii_autopoll(regs);
784 vptr->int_mask = INT_MASK_DEF;
786 writel(vptr->rx.pool_dma, ®s->RDBaseLo);
787 writew(vptr->options.numrx - 1, ®s->RDCSize);
788 mac_rx_queue_run(regs);
789 mac_rx_queue_wake(regs);
791 writew(vptr->options.numtx - 1, ®s->TDCSize);
793 for (i = 0; i < vptr->tx.numq; i++) {
794 writel(vptr->tx.pool_dma[i], ®s->TDBaseLo[i]);
795 mac_tx_queue_run(regs, i);
798 init_flow_control_register(vptr);
800 writel(CR0_STOP, ®s->CR0Clr);
801 writel((CR0_DPOLL | CR0_TXON | CR0_RXON | CR0_STRT), ®s->CR0Set);
803 mii_status = velocity_get_opt_media_mode(vptr);
804 netif_stop_queue(vptr->dev);
806 mii_init(vptr, mii_status);
808 if (velocity_set_media_mode(vptr, mii_status) != VELOCITY_LINK_CHANGE) {
809 velocity_print_link_status(vptr);
810 if (!(vptr->mii_status & VELOCITY_LINK_FAIL))
811 netif_wake_queue(vptr->dev);
814 enable_flow_control_ability(vptr);
815 mac_hw_mibs_init(regs);
816 mac_write_int_mask(vptr->int_mask, regs);
823 * velocity_soft_reset - soft reset
824 * @vptr: velocity to reset
826 * Kick off a soft reset of the velocity adapter and then poll
827 * until the reset sequence has completed before returning.
830 static int velocity_soft_reset(struct velocity_info *vptr)
832 struct mac_regs __iomem * regs = vptr->mac_regs;
835 writel(CR0_SFRST, ®s->CR0Set);
837 for (i = 0; i < W_MAX_TIMEOUT; i++) {
839 if (!DWORD_REG_BITS_IS_ON(CR0_SFRST, ®s->CR0Set))
843 if (i == W_MAX_TIMEOUT) {
844 writel(CR0_FORSRST, ®s->CR0Set);
845 /* FIXME: PCI POSTING */
852 static const struct net_device_ops velocity_netdev_ops = {
853 .ndo_open = velocity_open,
854 .ndo_stop = velocity_close,
855 .ndo_start_xmit = velocity_xmit,
856 .ndo_get_stats = velocity_get_stats,
857 .ndo_validate_addr = eth_validate_addr,
858 .ndo_set_mac_address = eth_mac_addr,
859 .ndo_set_multicast_list = velocity_set_multi,
860 .ndo_change_mtu = velocity_change_mtu,
861 .ndo_do_ioctl = velocity_ioctl,
862 .ndo_vlan_rx_add_vid = velocity_vlan_rx_add_vid,
863 .ndo_vlan_rx_kill_vid = velocity_vlan_rx_kill_vid,
864 .ndo_vlan_rx_register = velocity_vlan_rx_register,
868 * velocity_found1 - set up discovered velocity card
870 * @ent: PCI device table entry that matched
872 * Configure a discovered adapter from scratch. Return a negative
873 * errno error code on failure paths.
876 static int __devinit velocity_found1(struct pci_dev *pdev, const struct pci_device_id *ent)
878 static int first = 1;
879 struct net_device *dev;
881 const char *drv_string;
882 const struct velocity_info_tbl *info = &chip_info_table[ent->driver_data];
883 struct velocity_info *vptr;
884 struct mac_regs __iomem * regs;
887 /* FIXME: this driver, like almost all other ethernet drivers,
888 * can support more than MAX_UNITS.
890 if (velocity_nics >= MAX_UNITS) {
891 dev_notice(&pdev->dev, "already found %d NICs.\n",
896 dev = alloc_etherdev(sizeof(struct velocity_info));
898 dev_err(&pdev->dev, "allocate net device failed.\n");
902 /* Chain it all together */
904 SET_NETDEV_DEV(dev, &pdev->dev);
905 vptr = netdev_priv(dev);
909 printk(KERN_INFO "%s Ver. %s\n",
910 VELOCITY_FULL_DRV_NAM, VELOCITY_VERSION);
911 printk(KERN_INFO "Copyright (c) 2002, 2003 VIA Networking Technologies, Inc.\n");
912 printk(KERN_INFO "Copyright (c) 2004 Red Hat Inc.\n");
916 velocity_init_info(pdev, vptr, info);
920 dev->irq = pdev->irq;
922 ret = pci_enable_device(pdev);
926 ret = velocity_get_pci_info(vptr, pdev);
928 /* error message already printed */
932 ret = pci_request_regions(pdev, VELOCITY_NAME);
934 dev_err(&pdev->dev, "No PCI resources.\n");
938 regs = ioremap(vptr->memaddr, VELOCITY_IO_SIZE);
941 goto err_release_res;
944 vptr->mac_regs = regs;
948 dev->base_addr = vptr->ioaddr;
950 for (i = 0; i < 6; i++)
951 dev->dev_addr[i] = readb(®s->PAR[i]);
954 drv_string = dev_driver_string(&pdev->dev);
956 velocity_get_options(&vptr->options, velocity_nics, drv_string);
959 * Mask out the options cannot be set to the chip
962 vptr->options.flags &= info->flags;
965 * Enable the chip specified capbilities
968 vptr->flags = vptr->options.flags | (info->flags & 0xFF000000UL);
970 vptr->wol_opts = vptr->options.wol_opts;
971 vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED;
973 vptr->phy_id = MII_GET_PHY_ID(vptr->mac_regs);
975 dev->irq = pdev->irq;
976 dev->netdev_ops = &velocity_netdev_ops;
977 dev->ethtool_ops = &velocity_ethtool_ops;
979 dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_FILTER |
982 if (vptr->flags & VELOCITY_FLAGS_TX_CSUM)
983 dev->features |= NETIF_F_IP_CSUM;
985 ret = register_netdev(dev);
989 if (!velocity_get_link(dev)) {
990 netif_carrier_off(dev);
991 vptr->mii_status |= VELOCITY_LINK_FAIL;
994 velocity_print_info(vptr);
995 pci_set_drvdata(pdev, dev);
997 /* and leave the chip powered down */
999 pci_set_power_state(pdev, PCI_D3hot);
1002 unsigned long flags;
1004 spin_lock_irqsave(&velocity_dev_list_lock, flags);
1005 list_add(&vptr->list, &velocity_dev_list);
1006 spin_unlock_irqrestore(&velocity_dev_list_lock, flags);
1016 pci_release_regions(pdev);
1018 pci_disable_device(pdev);
1025 * velocity_print_info - per driver data
1028 * Print per driver data as the kernel driver finds Velocity
1032 static void __devinit velocity_print_info(struct velocity_info *vptr)
1034 struct net_device *dev = vptr->dev;
1036 printk(KERN_INFO "%s: %s\n", dev->name, get_chip_name(vptr->chip_id));
1037 printk(KERN_INFO "%s: Ethernet Address: %2.2X:%2.2X:%2.2X:%2.2X:%2.2X:%2.2X\n",
1039 dev->dev_addr[0], dev->dev_addr[1], dev->dev_addr[2],
1040 dev->dev_addr[3], dev->dev_addr[4], dev->dev_addr[5]);
1044 * velocity_init_info - init private data
1046 * @vptr: Velocity info
1049 * Set up the initial velocity_info struct for the device that has been
1053 static void __devinit velocity_init_info(struct pci_dev *pdev,
1054 struct velocity_info *vptr,
1055 const struct velocity_info_tbl *info)
1057 memset(vptr, 0, sizeof(struct velocity_info));
1060 vptr->chip_id = info->chip_id;
1061 vptr->tx.numq = info->txqueue;
1062 vptr->multicast_limit = MCAM_SIZE;
1063 spin_lock_init(&vptr->lock);
1064 INIT_LIST_HEAD(&vptr->list);
1068 * velocity_get_pci_info - retrieve PCI info for device
1069 * @vptr: velocity device
1070 * @pdev: PCI device it matches
1072 * Retrieve the PCI configuration space data that interests us from
1073 * the kernel PCI layer
1076 static int __devinit velocity_get_pci_info(struct velocity_info *vptr, struct pci_dev *pdev)
1078 vptr->rev_id = pdev->revision;
1080 pci_set_master(pdev);
1082 vptr->ioaddr = pci_resource_start(pdev, 0);
1083 vptr->memaddr = pci_resource_start(pdev, 1);
1085 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_IO)) {
1087 "region #0 is not an I/O resource, aborting.\n");
1091 if ((pci_resource_flags(pdev, 1) & IORESOURCE_IO)) {
1093 "region #1 is an I/O resource, aborting.\n");
1097 if (pci_resource_len(pdev, 1) < VELOCITY_IO_SIZE) {
1098 dev_err(&pdev->dev, "region #1 is too small.\n");
1107 * velocity_init_dma_rings - set up DMA rings
1108 * @vptr: Velocity to set up
1110 * Allocate PCI mapped DMA rings for the receive and transmit layer
1114 static int velocity_init_dma_rings(struct velocity_info *vptr)
1116 struct velocity_opt *opt = &vptr->options;
1117 const unsigned int rx_ring_size = opt->numrx * sizeof(struct rx_desc);
1118 const unsigned int tx_ring_size = opt->numtx * sizeof(struct tx_desc);
1119 struct pci_dev *pdev = vptr->pdev;
1120 dma_addr_t pool_dma;
1125 * Allocate all RD/TD rings a single pool.
1127 * pci_alloc_consistent() fulfills the requirement for 64 bytes
1130 pool = pci_alloc_consistent(pdev, tx_ring_size * vptr->tx.numq +
1131 rx_ring_size, &pool_dma);
1133 dev_err(&pdev->dev, "%s : DMA memory allocation failed.\n",
1138 vptr->rx.ring = pool;
1139 vptr->rx.pool_dma = pool_dma;
1141 pool += rx_ring_size;
1142 pool_dma += rx_ring_size;
1144 for (i = 0; i < vptr->tx.numq; i++) {
1145 vptr->tx.rings[i] = pool;
1146 vptr->tx.pool_dma[i] = pool_dma;
1147 pool += tx_ring_size;
1148 pool_dma += tx_ring_size;
1155 * velocity_free_dma_rings - free PCI ring pointers
1156 * @vptr: Velocity to free from
1158 * Clean up the PCI ring buffers allocated to this velocity.
1161 static void velocity_free_dma_rings(struct velocity_info *vptr)
1163 const int size = vptr->options.numrx * sizeof(struct rx_desc) +
1164 vptr->options.numtx * sizeof(struct tx_desc) * vptr->tx.numq;
1166 pci_free_consistent(vptr->pdev, size, vptr->rx.ring, vptr->rx.pool_dma);
1169 static void velocity_give_many_rx_descs(struct velocity_info *vptr)
1171 struct mac_regs __iomem *regs = vptr->mac_regs;
1172 int avail, dirty, unusable;
1175 * RD number must be equal to 4X per hardware spec
1176 * (programming guide rev 1.20, p.13)
1178 if (vptr->rx.filled < 4)
1183 unusable = vptr->rx.filled & 0x0003;
1184 dirty = vptr->rx.dirty - unusable;
1185 for (avail = vptr->rx.filled & 0xfffc; avail; avail--) {
1186 dirty = (dirty > 0) ? dirty - 1 : vptr->options.numrx - 1;
1187 vptr->rx.ring[dirty].rdesc0.len |= OWNED_BY_NIC;
1190 writew(vptr->rx.filled & 0xfffc, ®s->RBRDU);
1191 vptr->rx.filled = unusable;
1194 static int velocity_rx_refill(struct velocity_info *vptr)
1196 int dirty = vptr->rx.dirty, done = 0;
1199 struct rx_desc *rd = vptr->rx.ring + dirty;
1201 /* Fine for an all zero Rx desc at init time as well */
1202 if (rd->rdesc0.len & OWNED_BY_NIC)
1205 if (!vptr->rx.info[dirty].skb) {
1206 if (velocity_alloc_rx_buf(vptr, dirty) < 0)
1210 dirty = (dirty < vptr->options.numrx - 1) ? dirty + 1 : 0;
1211 } while (dirty != vptr->rx.curr);
1214 vptr->rx.dirty = dirty;
1215 vptr->rx.filled += done;
1221 static void velocity_set_rxbufsize(struct velocity_info *vptr, int mtu)
1223 vptr->rx.buf_sz = (mtu <= ETH_DATA_LEN) ? PKT_BUF_SZ : mtu + 32;
1227 * velocity_init_rd_ring - set up receive ring
1228 * @vptr: velocity to configure
1230 * Allocate and set up the receive buffers for each ring slot and
1231 * assign them to the network adapter.
1234 static int velocity_init_rd_ring(struct velocity_info *vptr)
1238 vptr->rx.info = kcalloc(vptr->options.numrx,
1239 sizeof(struct velocity_rd_info), GFP_KERNEL);
1243 velocity_init_rx_ring_indexes(vptr);
1245 if (velocity_rx_refill(vptr) != vptr->options.numrx) {
1246 VELOCITY_PRT(MSG_LEVEL_ERR, KERN_ERR
1247 "%s: failed to allocate RX buffer.\n", vptr->dev->name);
1248 velocity_free_rd_ring(vptr);
1258 * velocity_free_rd_ring - free receive ring
1259 * @vptr: velocity to clean up
1261 * Free the receive buffers for each ring slot and any
1262 * attached socket buffers that need to go away.
1265 static void velocity_free_rd_ring(struct velocity_info *vptr)
1269 if (vptr->rx.info == NULL)
1272 for (i = 0; i < vptr->options.numrx; i++) {
1273 struct velocity_rd_info *rd_info = &(vptr->rx.info[i]);
1274 struct rx_desc *rd = vptr->rx.ring + i;
1276 memset(rd, 0, sizeof(*rd));
1280 pci_unmap_single(vptr->pdev, rd_info->skb_dma, vptr->rx.buf_sz,
1281 PCI_DMA_FROMDEVICE);
1282 rd_info->skb_dma = 0;
1284 dev_kfree_skb(rd_info->skb);
1285 rd_info->skb = NULL;
1288 kfree(vptr->rx.info);
1289 vptr->rx.info = NULL;
1293 * velocity_init_td_ring - set up transmit ring
1296 * Set up the transmit ring and chain the ring pointers together.
1297 * Returns zero on success or a negative posix errno code for
1301 static int velocity_init_td_ring(struct velocity_info *vptr)
1306 /* Init the TD ring entries */
1307 for (j = 0; j < vptr->tx.numq; j++) {
1308 curr = vptr->tx.pool_dma[j];
1310 vptr->tx.infos[j] = kcalloc(vptr->options.numtx,
1311 sizeof(struct velocity_td_info),
1313 if (!vptr->tx.infos[j]) {
1315 kfree(vptr->tx.infos[j]);
1319 vptr->tx.tail[j] = vptr->tx.curr[j] = vptr->tx.used[j] = 0;
1325 * FIXME: could we merge this with velocity_free_tx_buf ?
1328 static void velocity_free_td_ring_entry(struct velocity_info *vptr,
1331 struct velocity_td_info * td_info = &(vptr->tx.infos[q][n]);
1334 if (td_info == NULL)
1338 for (i = 0; i < td_info->nskb_dma; i++)
1340 if (td_info->skb_dma[i]) {
1341 pci_unmap_single(vptr->pdev, td_info->skb_dma[i],
1342 td_info->skb->len, PCI_DMA_TODEVICE);
1343 td_info->skb_dma[i] = 0;
1346 dev_kfree_skb(td_info->skb);
1347 td_info->skb = NULL;
1352 * velocity_free_td_ring - free td ring
1355 * Free up the transmit ring for this particular velocity adapter.
1356 * We free the ring contents but not the ring itself.
1359 static void velocity_free_td_ring(struct velocity_info *vptr)
1363 for (j = 0; j < vptr->tx.numq; j++) {
1364 if (vptr->tx.infos[j] == NULL)
1366 for (i = 0; i < vptr->options.numtx; i++) {
1367 velocity_free_td_ring_entry(vptr, j, i);
1370 kfree(vptr->tx.infos[j]);
1371 vptr->tx.infos[j] = NULL;
1376 * velocity_rx_srv - service RX interrupt
1378 * @status: adapter status (unused)
1380 * Walk the receive ring of the velocity adapter and remove
1381 * any received packets from the receive queue. Hand the ring
1382 * slots back to the adapter for reuse.
1385 static int velocity_rx_srv(struct velocity_info *vptr, int status)
1387 struct net_device_stats *stats = &vptr->dev->stats;
1388 int rd_curr = vptr->rx.curr;
1392 struct rx_desc *rd = vptr->rx.ring + rd_curr;
1394 if (!vptr->rx.info[rd_curr].skb)
1397 if (rd->rdesc0.len & OWNED_BY_NIC)
1403 * Don't drop CE or RL error frame although RXOK is off
1405 if (rd->rdesc0.RSR & (RSR_RXOK | RSR_CE | RSR_RL)) {
1406 if (velocity_receive_frame(vptr, rd_curr) < 0)
1407 stats->rx_dropped++;
1409 if (rd->rdesc0.RSR & RSR_CRC)
1410 stats->rx_crc_errors++;
1411 if (rd->rdesc0.RSR & RSR_FAE)
1412 stats->rx_frame_errors++;
1414 stats->rx_dropped++;
1417 rd->size |= RX_INTEN;
1420 if (rd_curr >= vptr->options.numrx)
1422 } while (++works <= 15);
1424 vptr->rx.curr = rd_curr;
1426 if ((works > 0) && (velocity_rx_refill(vptr) > 0))
1427 velocity_give_many_rx_descs(vptr);
1434 * velocity_rx_csum - checksum process
1435 * @rd: receive packet descriptor
1436 * @skb: network layer packet buffer
1438 * Process the status bits for the received packet and determine
1439 * if the checksum was computed and verified by the hardware
1442 static inline void velocity_rx_csum(struct rx_desc *rd, struct sk_buff *skb)
1444 skb->ip_summed = CHECKSUM_NONE;
1446 if (rd->rdesc1.CSM & CSM_IPKT) {
1447 if (rd->rdesc1.CSM & CSM_IPOK) {
1448 if ((rd->rdesc1.CSM & CSM_TCPKT) ||
1449 (rd->rdesc1.CSM & CSM_UDPKT)) {
1450 if (!(rd->rdesc1.CSM & CSM_TUPOK)) {
1454 skb->ip_summed = CHECKSUM_UNNECESSARY;
1460 * velocity_rx_copy - in place Rx copy for small packets
1461 * @rx_skb: network layer packet buffer candidate
1462 * @pkt_size: received data size
1463 * @rd: receive packet descriptor
1464 * @dev: network device
1466 * Replace the current skb that is scheduled for Rx processing by a
1467 * shorter, immediatly allocated skb, if the received packet is small
1468 * enough. This function returns a negative value if the received
1469 * packet is too big or if memory is exhausted.
1471 static int velocity_rx_copy(struct sk_buff **rx_skb, int pkt_size,
1472 struct velocity_info *vptr)
1475 if (pkt_size < rx_copybreak) {
1476 struct sk_buff *new_skb;
1478 new_skb = netdev_alloc_skb(vptr->dev, pkt_size + 2);
1480 new_skb->ip_summed = rx_skb[0]->ip_summed;
1481 skb_reserve(new_skb, 2);
1482 skb_copy_from_linear_data(*rx_skb, new_skb->data, pkt_size);
1492 * velocity_iph_realign - IP header alignment
1493 * @vptr: velocity we are handling
1494 * @skb: network layer packet buffer
1495 * @pkt_size: received data size
1497 * Align IP header on a 2 bytes boundary. This behavior can be
1498 * configured by the user.
1500 static inline void velocity_iph_realign(struct velocity_info *vptr,
1501 struct sk_buff *skb, int pkt_size)
1503 if (vptr->flags & VELOCITY_FLAGS_IP_ALIGN) {
1504 memmove(skb->data + 2, skb->data, pkt_size);
1505 skb_reserve(skb, 2);
1510 * velocity_receive_frame - received packet processor
1511 * @vptr: velocity we are handling
1514 * A packet has arrived. We process the packet and if appropriate
1515 * pass the frame up the network stack
1518 static int velocity_receive_frame(struct velocity_info *vptr, int idx)
1520 void (*pci_action)(struct pci_dev *, dma_addr_t, size_t, int);
1521 struct net_device_stats *stats = &vptr->dev->stats;
1522 struct velocity_rd_info *rd_info = &(vptr->rx.info[idx]);
1523 struct rx_desc *rd = &(vptr->rx.ring[idx]);
1524 int pkt_len = le16_to_cpu(rd->rdesc0.len) & 0x3fff;
1525 struct sk_buff *skb;
1527 if (rd->rdesc0.RSR & (RSR_STP | RSR_EDP)) {
1528 VELOCITY_PRT(MSG_LEVEL_VERBOSE, KERN_ERR " %s : the received frame span multple RDs.\n", vptr->dev->name);
1529 stats->rx_length_errors++;
1533 if (rd->rdesc0.RSR & RSR_MAR)
1538 pci_dma_sync_single_for_cpu(vptr->pdev, rd_info->skb_dma,
1539 vptr->rx.buf_sz, PCI_DMA_FROMDEVICE);
1542 * Drop frame not meeting IEEE 802.3
1545 if (vptr->flags & VELOCITY_FLAGS_VAL_PKT_LEN) {
1546 if (rd->rdesc0.RSR & RSR_RL) {
1547 stats->rx_length_errors++;
1552 pci_action = pci_dma_sync_single_for_device;
1554 velocity_rx_csum(rd, skb);
1556 if (velocity_rx_copy(&skb, pkt_len, vptr) < 0) {
1557 velocity_iph_realign(vptr, skb, pkt_len);
1558 pci_action = pci_unmap_single;
1559 rd_info->skb = NULL;
1562 pci_action(vptr->pdev, rd_info->skb_dma, vptr->rx.buf_sz,
1563 PCI_DMA_FROMDEVICE);
1565 skb_put(skb, pkt_len - 4);
1566 skb->protocol = eth_type_trans(skb, vptr->dev);
1568 if (vptr->vlgrp && (rd->rdesc0.RSR & RSR_DETAG)) {
1569 vlan_hwaccel_rx(skb, vptr->vlgrp,
1570 swab16(le16_to_cpu(rd->rdesc1.PQTAG)));
1574 stats->rx_bytes += pkt_len;
1580 * velocity_alloc_rx_buf - allocate aligned receive buffer
1584 * Allocate a new full sized buffer for the reception of a frame and
1585 * map it into PCI space for the hardware to use. The hardware
1586 * requires *64* byte alignment of the buffer which makes life
1587 * less fun than would be ideal.
1590 static int velocity_alloc_rx_buf(struct velocity_info *vptr, int idx)
1592 struct rx_desc *rd = &(vptr->rx.ring[idx]);
1593 struct velocity_rd_info *rd_info = &(vptr->rx.info[idx]);
1595 rd_info->skb = dev_alloc_skb(vptr->rx.buf_sz + 64);
1596 if (rd_info->skb == NULL)
1600 * Do the gymnastics to get the buffer head for data at
1603 skb_reserve(rd_info->skb, (unsigned long) rd_info->skb->data & 63);
1604 rd_info->skb_dma = pci_map_single(vptr->pdev, rd_info->skb->data,
1605 vptr->rx.buf_sz, PCI_DMA_FROMDEVICE);
1608 * Fill in the descriptor to match
1611 *((u32 *) & (rd->rdesc0)) = 0;
1612 rd->size = cpu_to_le16(vptr->rx.buf_sz) | RX_INTEN;
1613 rd->pa_low = cpu_to_le32(rd_info->skb_dma);
1619 * tx_srv - transmit interrupt service
1623 * Scan the queues looking for transmitted packets that
1624 * we can complete and clean up. Update any statistics as
1628 static int velocity_tx_srv(struct velocity_info *vptr, u32 status)
1635 struct velocity_td_info *tdinfo;
1636 struct net_device_stats *stats = &vptr->dev->stats;
1638 for (qnum = 0; qnum < vptr->tx.numq; qnum++) {
1639 for (idx = vptr->tx.tail[qnum]; vptr->tx.used[qnum] > 0;
1640 idx = (idx + 1) % vptr->options.numtx) {
1645 td = &(vptr->tx.rings[qnum][idx]);
1646 tdinfo = &(vptr->tx.infos[qnum][idx]);
1648 if (td->tdesc0.len & OWNED_BY_NIC)
1654 if (td->tdesc0.TSR & TSR0_TERR) {
1656 stats->tx_dropped++;
1657 if (td->tdesc0.TSR & TSR0_CDH)
1658 stats->tx_heartbeat_errors++;
1659 if (td->tdesc0.TSR & TSR0_CRS)
1660 stats->tx_carrier_errors++;
1661 if (td->tdesc0.TSR & TSR0_ABT)
1662 stats->tx_aborted_errors++;
1663 if (td->tdesc0.TSR & TSR0_OWC)
1664 stats->tx_window_errors++;
1666 stats->tx_packets++;
1667 stats->tx_bytes += tdinfo->skb->len;
1669 velocity_free_tx_buf(vptr, tdinfo);
1670 vptr->tx.used[qnum]--;
1672 vptr->tx.tail[qnum] = idx;
1674 if (AVAIL_TD(vptr, qnum) < 1) {
1679 * Look to see if we should kick the transmit network
1680 * layer for more work.
1682 if (netif_queue_stopped(vptr->dev) && (full == 0)
1683 && (!(vptr->mii_status & VELOCITY_LINK_FAIL))) {
1684 netif_wake_queue(vptr->dev);
1690 * velocity_print_link_status - link status reporting
1691 * @vptr: velocity to report on
1693 * Turn the link status of the velocity card into a kernel log
1694 * description of the new link state, detailing speed and duplex
1698 static void velocity_print_link_status(struct velocity_info *vptr)
1701 if (vptr->mii_status & VELOCITY_LINK_FAIL) {
1702 VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: failed to detect cable link\n", vptr->dev->name);
1703 } else if (vptr->options.spd_dpx == SPD_DPX_AUTO) {
1704 VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: Link auto-negotiation", vptr->dev->name);
1706 if (vptr->mii_status & VELOCITY_SPEED_1000)
1707 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 1000M bps");
1708 else if (vptr->mii_status & VELOCITY_SPEED_100)
1709 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 100M bps");
1711 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 10M bps");
1713 if (vptr->mii_status & VELOCITY_DUPLEX_FULL)
1714 VELOCITY_PRT(MSG_LEVEL_INFO, " full duplex\n");
1716 VELOCITY_PRT(MSG_LEVEL_INFO, " half duplex\n");
1718 VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: Link forced", vptr->dev->name);
1719 switch (vptr->options.spd_dpx) {
1720 case SPD_DPX_100_HALF:
1721 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 100M bps half duplex\n");
1723 case SPD_DPX_100_FULL:
1724 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 100M bps full duplex\n");
1726 case SPD_DPX_10_HALF:
1727 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 10M bps half duplex\n");
1729 case SPD_DPX_10_FULL:
1730 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 10M bps full duplex\n");
1739 * velocity_error - handle error from controller
1741 * @status: card status
1743 * Process an error report from the hardware and attempt to recover
1744 * the card itself. At the moment we cannot recover from some
1745 * theoretically impossible errors but this could be fixed using
1746 * the pci_device_failed logic to bounce the hardware
1750 static void velocity_error(struct velocity_info *vptr, int status)
1753 if (status & ISR_TXSTLI) {
1754 struct mac_regs __iomem * regs = vptr->mac_regs;
1756 printk(KERN_ERR "TD structure error TDindex=%hx\n", readw(®s->TDIdx[0]));
1757 BYTE_REG_BITS_ON(TXESR_TDSTR, ®s->TXESR);
1758 writew(TRDCSR_RUN, ®s->TDCSRClr);
1759 netif_stop_queue(vptr->dev);
1761 /* FIXME: port over the pci_device_failed code and use it
1765 if (status & ISR_SRCI) {
1766 struct mac_regs __iomem * regs = vptr->mac_regs;
1769 if (vptr->options.spd_dpx == SPD_DPX_AUTO) {
1770 vptr->mii_status = check_connection_type(regs);
1773 * If it is a 3119, disable frame bursting in
1774 * halfduplex mode and enable it in fullduplex
1777 if (vptr->rev_id < REV_ID_VT3216_A0) {
1778 if (vptr->mii_status | VELOCITY_DUPLEX_FULL)
1779 BYTE_REG_BITS_ON(TCR_TB2BDIS, ®s->TCR);
1781 BYTE_REG_BITS_OFF(TCR_TB2BDIS, ®s->TCR);
1784 * Only enable CD heart beat counter in 10HD mode
1786 if (!(vptr->mii_status & VELOCITY_DUPLEX_FULL) && (vptr->mii_status & VELOCITY_SPEED_10)) {
1787 BYTE_REG_BITS_OFF(TESTCFG_HBDIS, ®s->TESTCFG);
1789 BYTE_REG_BITS_ON(TESTCFG_HBDIS, ®s->TESTCFG);
1793 * Get link status from PHYSR0
1795 linked = readb(®s->PHYSR0) & PHYSR0_LINKGD;
1798 vptr->mii_status &= ~VELOCITY_LINK_FAIL;
1799 netif_carrier_on(vptr->dev);
1801 vptr->mii_status |= VELOCITY_LINK_FAIL;
1802 netif_carrier_off(vptr->dev);
1805 velocity_print_link_status(vptr);
1806 enable_flow_control_ability(vptr);
1809 * Re-enable auto-polling because SRCI will disable
1813 enable_mii_autopoll(regs);
1815 if (vptr->mii_status & VELOCITY_LINK_FAIL)
1816 netif_stop_queue(vptr->dev);
1818 netif_wake_queue(vptr->dev);
1821 if (status & ISR_MIBFI)
1822 velocity_update_hw_mibs(vptr);
1823 if (status & ISR_LSTEI)
1824 mac_rx_queue_wake(vptr->mac_regs);
1828 * velocity_free_tx_buf - free transmit buffer
1832 * Release an transmit buffer. If the buffer was preallocated then
1833 * recycle it, if not then unmap the buffer.
1836 static void velocity_free_tx_buf(struct velocity_info *vptr, struct velocity_td_info *tdinfo)
1838 struct sk_buff *skb = tdinfo->skb;
1843 * Don't unmap the pre-allocated tx_bufs
1845 if (tdinfo->skb_dma) {
1847 pktlen = max_t(unsigned int, skb->len, ETH_ZLEN);
1848 for (i = 0; i < tdinfo->nskb_dma; i++) {
1849 pci_unmap_single(vptr->pdev, tdinfo->skb_dma[i], pktlen, PCI_DMA_TODEVICE);
1850 tdinfo->skb_dma[i] = 0;
1853 dev_kfree_skb_irq(skb);
1857 static int velocity_init_rings(struct velocity_info *vptr, int mtu)
1861 velocity_set_rxbufsize(vptr, mtu);
1863 ret = velocity_init_dma_rings(vptr);
1867 ret = velocity_init_rd_ring(vptr);
1869 goto err_free_dma_rings_0;
1871 ret = velocity_init_td_ring(vptr);
1873 goto err_free_rd_ring_1;
1878 velocity_free_rd_ring(vptr);
1879 err_free_dma_rings_0:
1880 velocity_free_dma_rings(vptr);
1884 static void velocity_free_rings(struct velocity_info *vptr)
1886 velocity_free_td_ring(vptr);
1887 velocity_free_rd_ring(vptr);
1888 velocity_free_dma_rings(vptr);
1892 * velocity_open - interface activation callback
1893 * @dev: network layer device to open
1895 * Called when the network layer brings the interface up. Returns
1896 * a negative posix error code on failure, or zero on success.
1898 * All the ring allocation and set up is done on open for this
1899 * adapter to minimise memory usage when inactive
1902 static int velocity_open(struct net_device *dev)
1904 struct velocity_info *vptr = netdev_priv(dev);
1907 ret = velocity_init_rings(vptr, dev->mtu);
1911 /* Ensure chip is running */
1912 pci_set_power_state(vptr->pdev, PCI_D0);
1914 velocity_give_many_rx_descs(vptr);
1916 velocity_init_registers(vptr, VELOCITY_INIT_COLD);
1918 ret = request_irq(vptr->pdev->irq, &velocity_intr, IRQF_SHARED,
1921 /* Power down the chip */
1922 pci_set_power_state(vptr->pdev, PCI_D3hot);
1923 velocity_free_rings(vptr);
1927 mac_enable_int(vptr->mac_regs);
1928 netif_start_queue(dev);
1929 vptr->flags |= VELOCITY_FLAGS_OPENED;
1935 * velocity_change_mtu - MTU change callback
1936 * @dev: network device
1937 * @new_mtu: desired MTU
1939 * Handle requests from the networking layer for MTU change on
1940 * this interface. It gets called on a change by the network layer.
1941 * Return zero for success or negative posix error code.
1944 static int velocity_change_mtu(struct net_device *dev, int new_mtu)
1946 struct velocity_info *vptr = netdev_priv(dev);
1949 if ((new_mtu < VELOCITY_MIN_MTU) || new_mtu > (VELOCITY_MAX_MTU)) {
1950 VELOCITY_PRT(MSG_LEVEL_ERR, KERN_NOTICE "%s: Invalid MTU.\n",
1956 if (!netif_running(dev)) {
1961 if (dev->mtu != new_mtu) {
1962 struct velocity_info *tmp_vptr;
1963 unsigned long flags;
1967 tmp_vptr = kzalloc(sizeof(*tmp_vptr), GFP_KERNEL);
1973 tmp_vptr->dev = dev;
1974 tmp_vptr->pdev = vptr->pdev;
1975 tmp_vptr->options = vptr->options;
1976 tmp_vptr->tx.numq = vptr->tx.numq;
1978 ret = velocity_init_rings(tmp_vptr, new_mtu);
1980 goto out_free_tmp_vptr_1;
1982 spin_lock_irqsave(&vptr->lock, flags);
1984 netif_stop_queue(dev);
1985 velocity_shutdown(vptr);
1990 vptr->rx = tmp_vptr->rx;
1991 vptr->tx = tmp_vptr->tx;
1998 velocity_give_many_rx_descs(vptr);
2000 velocity_init_registers(vptr, VELOCITY_INIT_COLD);
2002 mac_enable_int(vptr->mac_regs);
2003 netif_start_queue(dev);
2005 spin_unlock_irqrestore(&vptr->lock, flags);
2007 velocity_free_rings(tmp_vptr);
2009 out_free_tmp_vptr_1:
2017 * velocity_shutdown - shut down the chip
2018 * @vptr: velocity to deactivate
2020 * Shuts down the internal operations of the velocity and
2021 * disables interrupts, autopolling, transmit and receive
2024 static void velocity_shutdown(struct velocity_info *vptr)
2026 struct mac_regs __iomem * regs = vptr->mac_regs;
2027 mac_disable_int(regs);
2028 writel(CR0_STOP, ®s->CR0Set);
2029 writew(0xFFFF, ®s->TDCSRClr);
2030 writeb(0xFF, ®s->RDCSRClr);
2031 safe_disable_mii_autopoll(regs);
2032 mac_clear_isr(regs);
2036 * velocity_close - close adapter callback
2037 * @dev: network device
2039 * Callback from the network layer when the velocity is being
2040 * deactivated by the network layer
2043 static int velocity_close(struct net_device *dev)
2045 struct velocity_info *vptr = netdev_priv(dev);
2047 netif_stop_queue(dev);
2048 velocity_shutdown(vptr);
2050 if (vptr->flags & VELOCITY_FLAGS_WOL_ENABLED)
2051 velocity_get_ip(vptr);
2053 free_irq(dev->irq, dev);
2055 /* Power down the chip */
2056 pci_set_power_state(vptr->pdev, PCI_D3hot);
2058 velocity_free_rings(vptr);
2060 vptr->flags &= (~VELOCITY_FLAGS_OPENED);
2065 * velocity_xmit - transmit packet callback
2066 * @skb: buffer to transmit
2067 * @dev: network device
2069 * Called by the networ layer to request a packet is queued to
2070 * the velocity. Returns zero on success.
2073 static int velocity_xmit(struct sk_buff *skb, struct net_device *dev)
2075 struct velocity_info *vptr = netdev_priv(dev);
2077 struct tx_desc *td_ptr;
2078 struct velocity_td_info *tdinfo;
2079 unsigned long flags;
2085 if (skb_padto(skb, ETH_ZLEN))
2087 pktlen = max_t(unsigned int, skb->len, ETH_ZLEN);
2089 len = cpu_to_le16(pktlen);
2091 spin_lock_irqsave(&vptr->lock, flags);
2093 index = vptr->tx.curr[qnum];
2094 td_ptr = &(vptr->tx.rings[qnum][index]);
2095 tdinfo = &(vptr->tx.infos[qnum][index]);
2097 td_ptr->tdesc1.TCR = TCR0_TIC;
2098 td_ptr->td_buf[0].size &= ~TD_QUEUE;
2101 * Map the linear network buffer into PCI space and
2102 * add it to the transmit ring.
2105 tdinfo->skb_dma[0] = pci_map_single(vptr->pdev, skb->data, pktlen, PCI_DMA_TODEVICE);
2106 td_ptr->tdesc0.len = len;
2107 td_ptr->td_buf[0].pa_low = cpu_to_le32(tdinfo->skb_dma[0]);
2108 td_ptr->td_buf[0].pa_high = 0;
2109 td_ptr->td_buf[0].size = len;
2110 tdinfo->nskb_dma = 1;
2112 td_ptr->tdesc1.cmd = TCPLS_NORMAL + (tdinfo->nskb_dma + 1) * 16;
2114 if (vptr->vlgrp && vlan_tx_tag_present(skb)) {
2115 td_ptr->tdesc1.vlan = cpu_to_le16(vlan_tx_tag_get(skb));
2116 td_ptr->tdesc1.TCR |= TCR0_VETAG;
2120 * Handle hardware checksum
2122 if ((vptr->flags & VELOCITY_FLAGS_TX_CSUM)
2123 && (skb->ip_summed == CHECKSUM_PARTIAL)) {
2124 const struct iphdr *ip = ip_hdr(skb);
2125 if (ip->protocol == IPPROTO_TCP)
2126 td_ptr->tdesc1.TCR |= TCR0_TCPCK;
2127 else if (ip->protocol == IPPROTO_UDP)
2128 td_ptr->tdesc1.TCR |= (TCR0_UDPCK);
2129 td_ptr->tdesc1.TCR |= TCR0_IPCK;
2133 int prev = index - 1;
2136 prev = vptr->options.numtx - 1;
2137 td_ptr->tdesc0.len |= OWNED_BY_NIC;
2138 vptr->tx.used[qnum]++;
2139 vptr->tx.curr[qnum] = (index + 1) % vptr->options.numtx;
2141 if (AVAIL_TD(vptr, qnum) < 1)
2142 netif_stop_queue(dev);
2144 td_ptr = &(vptr->tx.rings[qnum][prev]);
2145 td_ptr->td_buf[0].size |= TD_QUEUE;
2146 mac_tx_queue_wake(vptr->mac_regs, qnum);
2148 dev->trans_start = jiffies;
2149 spin_unlock_irqrestore(&vptr->lock, flags);
2151 return NETDEV_TX_OK;
2155 * velocity_intr - interrupt callback
2156 * @irq: interrupt number
2157 * @dev_instance: interrupting device
2159 * Called whenever an interrupt is generated by the velocity
2160 * adapter IRQ line. We may not be the source of the interrupt
2161 * and need to identify initially if we are, and if not exit as
2162 * efficiently as possible.
2165 static irqreturn_t velocity_intr(int irq, void *dev_instance)
2167 struct net_device *dev = dev_instance;
2168 struct velocity_info *vptr = netdev_priv(dev);
2173 spin_lock(&vptr->lock);
2174 isr_status = mac_read_isr(vptr->mac_regs);
2177 if (isr_status == 0) {
2178 spin_unlock(&vptr->lock);
2182 mac_disable_int(vptr->mac_regs);
2185 * Keep processing the ISR until we have completed
2186 * processing and the isr_status becomes zero
2189 while (isr_status != 0) {
2190 mac_write_isr(vptr->mac_regs, isr_status);
2191 if (isr_status & (~(ISR_PRXI | ISR_PPRXI | ISR_PTXI | ISR_PPTXI)))
2192 velocity_error(vptr, isr_status);
2193 if (isr_status & (ISR_PRXI | ISR_PPRXI))
2194 max_count += velocity_rx_srv(vptr, isr_status);
2195 if (isr_status & (ISR_PTXI | ISR_PPTXI))
2196 max_count += velocity_tx_srv(vptr, isr_status);
2197 isr_status = mac_read_isr(vptr->mac_regs);
2198 if (max_count > vptr->options.int_works)
2200 printk(KERN_WARNING "%s: excessive work at interrupt.\n",
2205 spin_unlock(&vptr->lock);
2206 mac_enable_int(vptr->mac_regs);
2213 * velocity_set_multi - filter list change callback
2214 * @dev: network device
2216 * Called by the network layer when the filter lists need to change
2217 * for a velocity adapter. Reload the CAMs with the new address
2221 static void velocity_set_multi(struct net_device *dev)
2223 struct velocity_info *vptr = netdev_priv(dev);
2224 struct mac_regs __iomem * regs = vptr->mac_regs;
2227 struct dev_mc_list *mclist;
2229 if (dev->flags & IFF_PROMISC) { /* Set promiscuous. */
2230 writel(0xffffffff, ®s->MARCAM[0]);
2231 writel(0xffffffff, ®s->MARCAM[4]);
2232 rx_mode = (RCR_AM | RCR_AB | RCR_PROM);
2233 } else if ((dev->mc_count > vptr->multicast_limit)
2234 || (dev->flags & IFF_ALLMULTI)) {
2235 writel(0xffffffff, ®s->MARCAM[0]);
2236 writel(0xffffffff, ®s->MARCAM[4]);
2237 rx_mode = (RCR_AM | RCR_AB);
2239 int offset = MCAM_SIZE - vptr->multicast_limit;
2240 mac_get_cam_mask(regs, vptr->mCAMmask);
2242 for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count; i++, mclist = mclist->next) {
2243 mac_set_cam(regs, i + offset, mclist->dmi_addr);
2244 vptr->mCAMmask[(offset + i) / 8] |= 1 << ((offset + i) & 7);
2247 mac_set_cam_mask(regs, vptr->mCAMmask);
2248 rx_mode = RCR_AM | RCR_AB | RCR_AP;
2250 if (dev->mtu > 1500)
2253 BYTE_REG_BITS_ON(rx_mode, ®s->RCR);
2258 * velocity_get_status - statistics callback
2259 * @dev: network device
2261 * Callback from the network layer to allow driver statistics
2262 * to be resynchronized with hardware collected state. In the
2263 * case of the velocity we need to pull the MIB counters from
2264 * the hardware into the counters before letting the network
2265 * layer display them.
2268 static struct net_device_stats *velocity_get_stats(struct net_device *dev)
2270 struct velocity_info *vptr = netdev_priv(dev);
2272 /* If the hardware is down, don't touch MII */
2273 if(!netif_running(dev))
2276 spin_lock_irq(&vptr->lock);
2277 velocity_update_hw_mibs(vptr);
2278 spin_unlock_irq(&vptr->lock);
2280 dev->stats.rx_packets = vptr->mib_counter[HW_MIB_ifRxAllPkts];
2281 dev->stats.rx_errors = vptr->mib_counter[HW_MIB_ifRxErrorPkts];
2282 dev->stats.rx_length_errors = vptr->mib_counter[HW_MIB_ifInRangeLengthErrors];
2284 // unsigned long rx_dropped; /* no space in linux buffers */
2285 dev->stats.collisions = vptr->mib_counter[HW_MIB_ifTxEtherCollisions];
2286 /* detailed rx_errors: */
2287 // unsigned long rx_length_errors;
2288 // unsigned long rx_over_errors; /* receiver ring buff overflow */
2289 dev->stats.rx_crc_errors = vptr->mib_counter[HW_MIB_ifRxPktCRCE];
2290 // unsigned long rx_frame_errors; /* recv'd frame alignment error */
2291 // unsigned long rx_fifo_errors; /* recv'r fifo overrun */
2292 // unsigned long rx_missed_errors; /* receiver missed packet */
2294 /* detailed tx_errors */
2295 // unsigned long tx_fifo_errors;
2302 * velocity_ioctl - ioctl entry point
2303 * @dev: network device
2304 * @rq: interface request ioctl
2305 * @cmd: command code
2307 * Called when the user issues an ioctl request to the network
2308 * device in question. The velocity interface supports MII.
2311 static int velocity_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
2313 struct velocity_info *vptr = netdev_priv(dev);
2316 /* If we are asked for information and the device is power
2317 saving then we need to bring the device back up to talk to it */
2319 if (!netif_running(dev))
2320 pci_set_power_state(vptr->pdev, PCI_D0);
2323 case SIOCGMIIPHY: /* Get address of MII PHY in use. */
2324 case SIOCGMIIREG: /* Read MII PHY register. */
2325 case SIOCSMIIREG: /* Write to MII PHY register. */
2326 ret = velocity_mii_ioctl(dev, rq, cmd);
2332 if (!netif_running(dev))
2333 pci_set_power_state(vptr->pdev, PCI_D3hot);
2340 * Definition for our device driver. The PCI layer interface
2341 * uses this to handle all our card discover and plugging
2344 static struct pci_driver velocity_driver = {
2345 .name = VELOCITY_NAME,
2346 .id_table = velocity_id_table,
2347 .probe = velocity_found1,
2348 .remove = __devexit_p(velocity_remove1),
2350 .suspend = velocity_suspend,
2351 .resume = velocity_resume,
2356 * velocity_init_module - load time function
2358 * Called when the velocity module is loaded. The PCI driver
2359 * is registered with the PCI layer, and in turn will call
2360 * the probe functions for each velocity adapter installed
2364 static int __init velocity_init_module(void)
2368 velocity_register_notifier();
2369 ret = pci_register_driver(&velocity_driver);
2371 velocity_unregister_notifier();
2376 * velocity_cleanup - module unload
2378 * When the velocity hardware is unloaded this function is called.
2379 * It will clean up the notifiers and the unregister the PCI
2380 * driver interface for this hardware. This in turn cleans up
2381 * all discovered interfaces before returning from the function
2384 static void __exit velocity_cleanup_module(void)
2386 velocity_unregister_notifier();
2387 pci_unregister_driver(&velocity_driver);
2390 module_init(velocity_init_module);
2391 module_exit(velocity_cleanup_module);
2395 * MII access , media link mode setting functions
2400 * mii_init - set up MII
2401 * @vptr: velocity adapter
2402 * @mii_status: links tatus
2404 * Set up the PHY for the current link state.
2407 static void mii_init(struct velocity_info *vptr, u32 mii_status)
2411 switch (PHYID_GET_PHY_ID(vptr->phy_id)) {
2412 case PHYID_CICADA_CS8201:
2414 * Reset to hardware default
2416 MII_REG_BITS_OFF((ANAR_ASMDIR | ANAR_PAUSE), MII_REG_ANAR, vptr->mac_regs);
2418 * Turn on ECHODIS bit in NWay-forced full mode and turn it
2419 * off it in NWay-forced half mode for NWay-forced v.s.
2420 * legacy-forced issue.
2422 if (vptr->mii_status & VELOCITY_DUPLEX_FULL)
2423 MII_REG_BITS_ON(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs);
2425 MII_REG_BITS_OFF(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs);
2427 * Turn on Link/Activity LED enable bit for CIS8201
2429 MII_REG_BITS_ON(PLED_LALBE, MII_REG_PLED, vptr->mac_regs);
2431 case PHYID_VT3216_32BIT:
2432 case PHYID_VT3216_64BIT:
2434 * Reset to hardware default
2436 MII_REG_BITS_ON((ANAR_ASMDIR | ANAR_PAUSE), MII_REG_ANAR, vptr->mac_regs);
2438 * Turn on ECHODIS bit in NWay-forced full mode and turn it
2439 * off it in NWay-forced half mode for NWay-forced v.s.
2440 * legacy-forced issue
2442 if (vptr->mii_status & VELOCITY_DUPLEX_FULL)
2443 MII_REG_BITS_ON(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs);
2445 MII_REG_BITS_OFF(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs);
2448 case PHYID_MARVELL_1000:
2449 case PHYID_MARVELL_1000S:
2451 * Assert CRS on Transmit
2453 MII_REG_BITS_ON(PSCR_ACRSTX, MII_REG_PSCR, vptr->mac_regs);
2455 * Reset to hardware default
2457 MII_REG_BITS_ON((ANAR_ASMDIR | ANAR_PAUSE), MII_REG_ANAR, vptr->mac_regs);
2462 velocity_mii_read(vptr->mac_regs, MII_REG_BMCR, &BMCR);
2463 if (BMCR & BMCR_ISO) {
2465 velocity_mii_write(vptr->mac_regs, MII_REG_BMCR, BMCR);
2470 * safe_disable_mii_autopoll - autopoll off
2471 * @regs: velocity registers
2473 * Turn off the autopoll and wait for it to disable on the chip
2476 static void safe_disable_mii_autopoll(struct mac_regs __iomem * regs)
2480 /* turn off MAUTO */
2481 writeb(0, ®s->MIICR);
2482 for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
2484 if (BYTE_REG_BITS_IS_ON(MIISR_MIDLE, ®s->MIISR))
2490 * enable_mii_autopoll - turn on autopolling
2491 * @regs: velocity registers
2493 * Enable the MII link status autopoll feature on the Velocity
2494 * hardware. Wait for it to enable.
2497 static void enable_mii_autopoll(struct mac_regs __iomem * regs)
2501 writeb(0, &(regs->MIICR));
2502 writeb(MIIADR_SWMPL, ®s->MIIADR);
2504 for (ii = 0; ii < W_MAX_TIMEOUT; ii++) {
2506 if (BYTE_REG_BITS_IS_ON(MIISR_MIDLE, ®s->MIISR))
2510 writeb(MIICR_MAUTO, ®s->MIICR);
2512 for (ii = 0; ii < W_MAX_TIMEOUT; ii++) {
2514 if (!BYTE_REG_BITS_IS_ON(MIISR_MIDLE, ®s->MIISR))
2521 * velocity_mii_read - read MII data
2522 * @regs: velocity registers
2523 * @index: MII register index
2524 * @data: buffer for received data
2526 * Perform a single read of an MII 16bit register. Returns zero
2527 * on success or -ETIMEDOUT if the PHY did not respond.
2530 static int velocity_mii_read(struct mac_regs __iomem *regs, u8 index, u16 *data)
2535 * Disable MIICR_MAUTO, so that mii addr can be set normally
2537 safe_disable_mii_autopoll(regs);
2539 writeb(index, ®s->MIIADR);
2541 BYTE_REG_BITS_ON(MIICR_RCMD, ®s->MIICR);
2543 for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
2544 if (!(readb(®s->MIICR) & MIICR_RCMD))
2548 *data = readw(®s->MIIDATA);
2550 enable_mii_autopoll(regs);
2551 if (ww == W_MAX_TIMEOUT)
2557 * velocity_mii_write - write MII data
2558 * @regs: velocity registers
2559 * @index: MII register index
2560 * @data: 16bit data for the MII register
2562 * Perform a single write to an MII 16bit register. Returns zero
2563 * on success or -ETIMEDOUT if the PHY did not respond.
2566 static int velocity_mii_write(struct mac_regs __iomem *regs, u8 mii_addr, u16 data)
2571 * Disable MIICR_MAUTO, so that mii addr can be set normally
2573 safe_disable_mii_autopoll(regs);
2575 /* MII reg offset */
2576 writeb(mii_addr, ®s->MIIADR);
2578 writew(data, ®s->MIIDATA);
2580 /* turn on MIICR_WCMD */
2581 BYTE_REG_BITS_ON(MIICR_WCMD, ®s->MIICR);
2583 /* W_MAX_TIMEOUT is the timeout period */
2584 for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
2586 if (!(readb(®s->MIICR) & MIICR_WCMD))
2589 enable_mii_autopoll(regs);
2591 if (ww == W_MAX_TIMEOUT)
2597 * velocity_get_opt_media_mode - get media selection
2598 * @vptr: velocity adapter
2600 * Get the media mode stored in EEPROM or module options and load
2601 * mii_status accordingly. The requested link state information
2605 static u32 velocity_get_opt_media_mode(struct velocity_info *vptr)
2609 switch (vptr->options.spd_dpx) {
2611 status = VELOCITY_AUTONEG_ENABLE;
2613 case SPD_DPX_100_FULL:
2614 status = VELOCITY_SPEED_100 | VELOCITY_DUPLEX_FULL;
2616 case SPD_DPX_10_FULL:
2617 status = VELOCITY_SPEED_10 | VELOCITY_DUPLEX_FULL;
2619 case SPD_DPX_100_HALF:
2620 status = VELOCITY_SPEED_100;
2622 case SPD_DPX_10_HALF:
2623 status = VELOCITY_SPEED_10;
2626 vptr->mii_status = status;
2631 * mii_set_auto_on - autonegotiate on
2634 * Enable autonegotation on this interface
2637 static void mii_set_auto_on(struct velocity_info *vptr)
2639 if (MII_REG_BITS_IS_ON(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs))
2640 MII_REG_BITS_ON(BMCR_REAUTO, MII_REG_BMCR, vptr->mac_regs);
2642 MII_REG_BITS_ON(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs);
2647 static void mii_set_auto_off(struct velocity_info * vptr)
2649 MII_REG_BITS_OFF(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs);
2654 * set_mii_flow_control - flow control setup
2655 * @vptr: velocity interface
2657 * Set up the flow control on this interface according to
2658 * the supplied user/eeprom options.
2661 static void set_mii_flow_control(struct velocity_info *vptr)
2663 /*Enable or Disable PAUSE in ANAR */
2664 switch (vptr->options.flow_cntl) {
2666 MII_REG_BITS_OFF(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs);
2667 MII_REG_BITS_ON(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs);
2671 MII_REG_BITS_ON(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs);
2672 MII_REG_BITS_ON(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs);
2675 case FLOW_CNTL_TX_RX:
2676 MII_REG_BITS_ON(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs);
2677 MII_REG_BITS_ON(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs);
2680 case FLOW_CNTL_DISABLE:
2681 MII_REG_BITS_OFF(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs);
2682 MII_REG_BITS_OFF(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs);
2690 * velocity_set_media_mode - set media mode
2691 * @mii_status: old MII link state
2693 * Check the media link state and configure the flow control
2694 * PHY and also velocity hardware setup accordingly. In particular
2695 * we need to set up CD polling and frame bursting.
2698 static int velocity_set_media_mode(struct velocity_info *vptr, u32 mii_status)
2701 struct mac_regs __iomem * regs = vptr->mac_regs;
2703 vptr->mii_status = mii_check_media_mode(vptr->mac_regs);
2704 curr_status = vptr->mii_status & (~VELOCITY_LINK_FAIL);
2706 /* Set mii link status */
2707 set_mii_flow_control(vptr);
2710 Check if new status is consisent with current status
2711 if (((mii_status & curr_status) & VELOCITY_AUTONEG_ENABLE)
2712 || (mii_status==curr_status)) {
2713 vptr->mii_status=mii_check_media_mode(vptr->mac_regs);
2714 vptr->mii_status=check_connection_type(vptr->mac_regs);
2715 VELOCITY_PRT(MSG_LEVEL_INFO, "Velocity link no change\n");
2720 if (PHYID_GET_PHY_ID(vptr->phy_id) == PHYID_CICADA_CS8201) {
2721 MII_REG_BITS_ON(AUXCR_MDPPS, MII_REG_AUXCR, vptr->mac_regs);
2725 * If connection type is AUTO
2727 if (mii_status & VELOCITY_AUTONEG_ENABLE) {
2728 VELOCITY_PRT(MSG_LEVEL_INFO, "Velocity is AUTO mode\n");
2729 /* clear force MAC mode bit */
2730 BYTE_REG_BITS_OFF(CHIPGCR_FCMODE, ®s->CHIPGCR);
2731 /* set duplex mode of MAC according to duplex mode of MII */
2732 MII_REG_BITS_ON(ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10, MII_REG_ANAR, vptr->mac_regs);
2733 MII_REG_BITS_ON(G1000CR_1000FD | G1000CR_1000, MII_REG_G1000CR, vptr->mac_regs);
2734 MII_REG_BITS_ON(BMCR_SPEED1G, MII_REG_BMCR, vptr->mac_regs);
2736 /* enable AUTO-NEGO mode */
2737 mii_set_auto_on(vptr);
2743 * 1. if it's 3119, disable frame bursting in halfduplex mode
2744 * and enable it in fullduplex mode
2745 * 2. set correct MII/GMII and half/full duplex mode in CHIPGCR
2746 * 3. only enable CD heart beat counter in 10HD mode
2749 /* set force MAC mode bit */
2750 BYTE_REG_BITS_ON(CHIPGCR_FCMODE, ®s->CHIPGCR);
2752 CHIPGCR = readb(®s->CHIPGCR);
2753 CHIPGCR &= ~CHIPGCR_FCGMII;
2755 if (mii_status & VELOCITY_DUPLEX_FULL) {
2756 CHIPGCR |= CHIPGCR_FCFDX;
2757 writeb(CHIPGCR, ®s->CHIPGCR);
2758 VELOCITY_PRT(MSG_LEVEL_INFO, "set Velocity to forced full mode\n");
2759 if (vptr->rev_id < REV_ID_VT3216_A0)
2760 BYTE_REG_BITS_OFF(TCR_TB2BDIS, ®s->TCR);
2762 CHIPGCR &= ~CHIPGCR_FCFDX;
2763 VELOCITY_PRT(MSG_LEVEL_INFO, "set Velocity to forced half mode\n");
2764 writeb(CHIPGCR, ®s->CHIPGCR);
2765 if (vptr->rev_id < REV_ID_VT3216_A0)
2766 BYTE_REG_BITS_ON(TCR_TB2BDIS, ®s->TCR);
2769 MII_REG_BITS_OFF(G1000CR_1000FD | G1000CR_1000, MII_REG_G1000CR, vptr->mac_regs);
2771 if (!(mii_status & VELOCITY_DUPLEX_FULL) && (mii_status & VELOCITY_SPEED_10)) {
2772 BYTE_REG_BITS_OFF(TESTCFG_HBDIS, ®s->TESTCFG);
2774 BYTE_REG_BITS_ON(TESTCFG_HBDIS, ®s->TESTCFG);
2776 /* MII_REG_BITS_OFF(BMCR_SPEED1G, MII_REG_BMCR, vptr->mac_regs); */
2777 velocity_mii_read(vptr->mac_regs, MII_REG_ANAR, &ANAR);
2778 ANAR &= (~(ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10));
2779 if (mii_status & VELOCITY_SPEED_100) {
2780 if (mii_status & VELOCITY_DUPLEX_FULL)
2785 if (mii_status & VELOCITY_DUPLEX_FULL)
2790 velocity_mii_write(vptr->mac_regs, MII_REG_ANAR, ANAR);
2791 /* enable AUTO-NEGO mode */
2792 mii_set_auto_on(vptr);
2793 /* MII_REG_BITS_ON(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs); */
2795 /* vptr->mii_status=mii_check_media_mode(vptr->mac_regs); */
2796 /* vptr->mii_status=check_connection_type(vptr->mac_regs); */
2797 return VELOCITY_LINK_CHANGE;
2801 * mii_check_media_mode - check media state
2802 * @regs: velocity registers
2804 * Check the current MII status and determine the link status
2808 static u32 mii_check_media_mode(struct mac_regs __iomem * regs)
2813 if (!MII_REG_BITS_IS_ON(BMSR_LNK, MII_REG_BMSR, regs))
2814 status |= VELOCITY_LINK_FAIL;
2816 if (MII_REG_BITS_IS_ON(G1000CR_1000FD, MII_REG_G1000CR, regs))
2817 status |= VELOCITY_SPEED_1000 | VELOCITY_DUPLEX_FULL;
2818 else if (MII_REG_BITS_IS_ON(G1000CR_1000, MII_REG_G1000CR, regs))
2819 status |= (VELOCITY_SPEED_1000);
2821 velocity_mii_read(regs, MII_REG_ANAR, &ANAR);
2822 if (ANAR & ANAR_TXFD)
2823 status |= (VELOCITY_SPEED_100 | VELOCITY_DUPLEX_FULL);
2824 else if (ANAR & ANAR_TX)
2825 status |= VELOCITY_SPEED_100;
2826 else if (ANAR & ANAR_10FD)
2827 status |= (VELOCITY_SPEED_10 | VELOCITY_DUPLEX_FULL);
2829 status |= (VELOCITY_SPEED_10);
2832 if (MII_REG_BITS_IS_ON(BMCR_AUTO, MII_REG_BMCR, regs)) {
2833 velocity_mii_read(regs, MII_REG_ANAR, &ANAR);
2834 if ((ANAR & (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10))
2835 == (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10)) {
2836 if (MII_REG_BITS_IS_ON(G1000CR_1000 | G1000CR_1000FD, MII_REG_G1000CR, regs))
2837 status |= VELOCITY_AUTONEG_ENABLE;
2844 static u32 check_connection_type(struct mac_regs __iomem * regs)
2849 PHYSR0 = readb(®s->PHYSR0);
2852 if (!(PHYSR0 & PHYSR0_LINKGD))
2853 status|=VELOCITY_LINK_FAIL;
2856 if (PHYSR0 & PHYSR0_FDPX)
2857 status |= VELOCITY_DUPLEX_FULL;
2859 if (PHYSR0 & PHYSR0_SPDG)
2860 status |= VELOCITY_SPEED_1000;
2861 else if (PHYSR0 & PHYSR0_SPD10)
2862 status |= VELOCITY_SPEED_10;
2864 status |= VELOCITY_SPEED_100;
2866 if (MII_REG_BITS_IS_ON(BMCR_AUTO, MII_REG_BMCR, regs)) {
2867 velocity_mii_read(regs, MII_REG_ANAR, &ANAR);
2868 if ((ANAR & (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10))
2869 == (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10)) {
2870 if (MII_REG_BITS_IS_ON(G1000CR_1000 | G1000CR_1000FD, MII_REG_G1000CR, regs))
2871 status |= VELOCITY_AUTONEG_ENABLE;
2879 * enable_flow_control_ability - flow control
2880 * @vptr: veloity to configure
2882 * Set up flow control according to the flow control options
2883 * determined by the eeprom/configuration.
2886 static void enable_flow_control_ability(struct velocity_info *vptr)
2889 struct mac_regs __iomem * regs = vptr->mac_regs;
2891 switch (vptr->options.flow_cntl) {
2893 case FLOW_CNTL_DEFAULT:
2894 if (BYTE_REG_BITS_IS_ON(PHYSR0_RXFLC, ®s->PHYSR0))
2895 writel(CR0_FDXRFCEN, ®s->CR0Set);
2897 writel(CR0_FDXRFCEN, ®s->CR0Clr);
2899 if (BYTE_REG_BITS_IS_ON(PHYSR0_TXFLC, ®s->PHYSR0))
2900 writel(CR0_FDXTFCEN, ®s->CR0Set);
2902 writel(CR0_FDXTFCEN, ®s->CR0Clr);
2906 writel(CR0_FDXTFCEN, ®s->CR0Set);
2907 writel(CR0_FDXRFCEN, ®s->CR0Clr);
2911 writel(CR0_FDXRFCEN, ®s->CR0Set);
2912 writel(CR0_FDXTFCEN, ®s->CR0Clr);
2915 case FLOW_CNTL_TX_RX:
2916 writel(CR0_FDXTFCEN, ®s->CR0Set);
2917 writel(CR0_FDXRFCEN, ®s->CR0Set);
2920 case FLOW_CNTL_DISABLE:
2921 writel(CR0_FDXRFCEN, ®s->CR0Clr);
2922 writel(CR0_FDXTFCEN, ®s->CR0Clr);
2933 * velocity_ethtool_up - pre hook for ethtool
2934 * @dev: network device
2936 * Called before an ethtool operation. We need to make sure the
2937 * chip is out of D3 state before we poke at it.
2940 static int velocity_ethtool_up(struct net_device *dev)
2942 struct velocity_info *vptr = netdev_priv(dev);
2943 if (!netif_running(dev))
2944 pci_set_power_state(vptr->pdev, PCI_D0);
2949 * velocity_ethtool_down - post hook for ethtool
2950 * @dev: network device
2952 * Called after an ethtool operation. Restore the chip back to D3
2953 * state if it isn't running.
2956 static void velocity_ethtool_down(struct net_device *dev)
2958 struct velocity_info *vptr = netdev_priv(dev);
2959 if (!netif_running(dev))
2960 pci_set_power_state(vptr->pdev, PCI_D3hot);
2963 static int velocity_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
2965 struct velocity_info *vptr = netdev_priv(dev);
2966 struct mac_regs __iomem * regs = vptr->mac_regs;
2968 status = check_connection_type(vptr->mac_regs);
2970 cmd->supported = SUPPORTED_TP |
2972 SUPPORTED_10baseT_Half |
2973 SUPPORTED_10baseT_Full |
2974 SUPPORTED_100baseT_Half |
2975 SUPPORTED_100baseT_Full |
2976 SUPPORTED_1000baseT_Half |
2977 SUPPORTED_1000baseT_Full;
2978 if (status & VELOCITY_SPEED_1000)
2979 cmd->speed = SPEED_1000;
2980 else if (status & VELOCITY_SPEED_100)
2981 cmd->speed = SPEED_100;
2983 cmd->speed = SPEED_10;
2984 cmd->autoneg = (status & VELOCITY_AUTONEG_ENABLE) ? AUTONEG_ENABLE : AUTONEG_DISABLE;
2985 cmd->port = PORT_TP;
2986 cmd->transceiver = XCVR_INTERNAL;
2987 cmd->phy_address = readb(®s->MIIADR) & 0x1F;
2989 if (status & VELOCITY_DUPLEX_FULL)
2990 cmd->duplex = DUPLEX_FULL;
2992 cmd->duplex = DUPLEX_HALF;
2997 static int velocity_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
2999 struct velocity_info *vptr = netdev_priv(dev);
3004 curr_status = check_connection_type(vptr->mac_regs);
3005 curr_status &= (~VELOCITY_LINK_FAIL);
3007 new_status |= ((cmd->autoneg) ? VELOCITY_AUTONEG_ENABLE : 0);
3008 new_status |= ((cmd->speed == SPEED_100) ? VELOCITY_SPEED_100 : 0);
3009 new_status |= ((cmd->speed == SPEED_10) ? VELOCITY_SPEED_10 : 0);
3010 new_status |= ((cmd->duplex == DUPLEX_FULL) ? VELOCITY_DUPLEX_FULL : 0);
3012 if ((new_status & VELOCITY_AUTONEG_ENABLE) && (new_status != (curr_status | VELOCITY_AUTONEG_ENABLE)))
3015 velocity_set_media_mode(vptr, new_status);
3020 static u32 velocity_get_link(struct net_device *dev)
3022 struct velocity_info *vptr = netdev_priv(dev);
3023 struct mac_regs __iomem * regs = vptr->mac_regs;
3024 return BYTE_REG_BITS_IS_ON(PHYSR0_LINKGD, ®s->PHYSR0) ? 1 : 0;
3027 static void velocity_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
3029 struct velocity_info *vptr = netdev_priv(dev);
3030 strcpy(info->driver, VELOCITY_NAME);
3031 strcpy(info->version, VELOCITY_VERSION);
3032 strcpy(info->bus_info, pci_name(vptr->pdev));
3035 static void velocity_ethtool_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
3037 struct velocity_info *vptr = netdev_priv(dev);
3038 wol->supported = WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_ARP;
3039 wol->wolopts |= WAKE_MAGIC;
3041 if (vptr->wol_opts & VELOCITY_WOL_PHY)
3042 wol.wolopts|=WAKE_PHY;
3044 if (vptr->wol_opts & VELOCITY_WOL_UCAST)
3045 wol->wolopts |= WAKE_UCAST;
3046 if (vptr->wol_opts & VELOCITY_WOL_ARP)
3047 wol->wolopts |= WAKE_ARP;
3048 memcpy(&wol->sopass, vptr->wol_passwd, 6);
3051 static int velocity_ethtool_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
3053 struct velocity_info *vptr = netdev_priv(dev);
3055 if (!(wol->wolopts & (WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_ARP)))
3057 vptr->wol_opts = VELOCITY_WOL_MAGIC;
3060 if (wol.wolopts & WAKE_PHY) {
3061 vptr->wol_opts|=VELOCITY_WOL_PHY;
3062 vptr->flags |=VELOCITY_FLAGS_WOL_ENABLED;
3066 if (wol->wolopts & WAKE_MAGIC) {
3067 vptr->wol_opts |= VELOCITY_WOL_MAGIC;
3068 vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED;
3070 if (wol->wolopts & WAKE_UCAST) {
3071 vptr->wol_opts |= VELOCITY_WOL_UCAST;
3072 vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED;
3074 if (wol->wolopts & WAKE_ARP) {
3075 vptr->wol_opts |= VELOCITY_WOL_ARP;
3076 vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED;
3078 memcpy(vptr->wol_passwd, wol->sopass, 6);
3082 static u32 velocity_get_msglevel(struct net_device *dev)
3087 static void velocity_set_msglevel(struct net_device *dev, u32 value)
3092 static const struct ethtool_ops velocity_ethtool_ops = {
3093 .get_settings = velocity_get_settings,
3094 .set_settings = velocity_set_settings,
3095 .get_drvinfo = velocity_get_drvinfo,
3096 .get_wol = velocity_ethtool_get_wol,
3097 .set_wol = velocity_ethtool_set_wol,
3098 .get_msglevel = velocity_get_msglevel,
3099 .set_msglevel = velocity_set_msglevel,
3100 .get_link = velocity_get_link,
3101 .begin = velocity_ethtool_up,
3102 .complete = velocity_ethtool_down
3106 * velocity_mii_ioctl - MII ioctl handler
3107 * @dev: network device
3108 * @ifr: the ifreq block for the ioctl
3111 * Process MII requests made via ioctl from the network layer. These
3112 * are used by tools like kudzu to interrogate the link state of the
3116 static int velocity_mii_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
3118 struct velocity_info *vptr = netdev_priv(dev);
3119 struct mac_regs __iomem * regs = vptr->mac_regs;
3120 unsigned long flags;
3121 struct mii_ioctl_data *miidata = if_mii(ifr);
3126 miidata->phy_id = readb(®s->MIIADR) & 0x1f;
3129 if (!capable(CAP_NET_ADMIN))
3131 if(velocity_mii_read(vptr->mac_regs, miidata->reg_num & 0x1f, &(miidata->val_out)) < 0)
3135 if (!capable(CAP_NET_ADMIN))
3137 spin_lock_irqsave(&vptr->lock, flags);
3138 err = velocity_mii_write(vptr->mac_regs, miidata->reg_num & 0x1f, miidata->val_in);
3139 spin_unlock_irqrestore(&vptr->lock, flags);
3140 check_connection_type(vptr->mac_regs);
3153 * velocity_save_context - save registers
3155 * @context: buffer for stored context
3157 * Retrieve the current configuration from the velocity hardware
3158 * and stash it in the context structure, for use by the context
3159 * restore functions. This allows us to save things we need across
3163 static void velocity_save_context(struct velocity_info *vptr, struct velocity_context * context)
3165 struct mac_regs __iomem * regs = vptr->mac_regs;
3167 u8 __iomem *ptr = (u8 __iomem *)regs;
3169 for (i = MAC_REG_PAR; i < MAC_REG_CR0_CLR; i += 4)
3170 *((u32 *) (context->mac_reg + i)) = readl(ptr + i);
3172 for (i = MAC_REG_MAR; i < MAC_REG_TDCSR_CLR; i += 4)
3173 *((u32 *) (context->mac_reg + i)) = readl(ptr + i);
3175 for (i = MAC_REG_RDBASE_LO; i < MAC_REG_FIFO_TEST0; i += 4)
3176 *((u32 *) (context->mac_reg + i)) = readl(ptr + i);
3181 * velocity_restore_context - restore registers
3183 * @context: buffer for stored context
3185 * Reload the register configuration from the velocity context
3186 * created by velocity_save_context.
3189 static void velocity_restore_context(struct velocity_info *vptr, struct velocity_context *context)
3191 struct mac_regs __iomem * regs = vptr->mac_regs;
3193 u8 __iomem *ptr = (u8 __iomem *)regs;
3195 for (i = MAC_REG_PAR; i < MAC_REG_CR0_SET; i += 4) {
3196 writel(*((u32 *) (context->mac_reg + i)), ptr + i);
3200 for (i = MAC_REG_CR1_SET; i < MAC_REG_CR0_CLR; i++) {
3202 writeb(~(*((u8 *) (context->mac_reg + i))), ptr + i + 4);
3204 writeb(*((u8 *) (context->mac_reg + i)), ptr + i);
3207 for (i = MAC_REG_MAR; i < MAC_REG_IMR; i += 4) {
3208 writel(*((u32 *) (context->mac_reg + i)), ptr + i);
3211 for (i = MAC_REG_RDBASE_LO; i < MAC_REG_FIFO_TEST0; i += 4) {
3212 writel(*((u32 *) (context->mac_reg + i)), ptr + i);
3215 for (i = MAC_REG_TDCSR_SET; i <= MAC_REG_RDCSR_SET; i++) {
3216 writeb(*((u8 *) (context->mac_reg + i)), ptr + i);
3222 * wol_calc_crc - WOL CRC
3223 * @pattern: data pattern
3224 * @mask_pattern: mask
3226 * Compute the wake on lan crc hashes for the packet header
3227 * we are interested in.
3230 static u16 wol_calc_crc(int size, u8 * pattern, u8 *mask_pattern)
3236 for (i = 0; i < size; i++) {
3237 mask = mask_pattern[i];
3239 /* Skip this loop if the mask equals to zero */
3243 for (j = 0; j < 8; j++) {
3244 if ((mask & 0x01) == 0) {
3249 crc = crc_ccitt(crc, &(pattern[i * 8 + j]), 1);
3252 /* Finally, invert the result once to get the correct data */
3254 return bitrev32(crc) >> 16;
3258 * velocity_set_wol - set up for wake on lan
3259 * @vptr: velocity to set WOL status on
3261 * Set a card up for wake on lan either by unicast or by
3264 * FIXME: check static buffer is safe here
3267 static int velocity_set_wol(struct velocity_info *vptr)
3269 struct mac_regs __iomem * regs = vptr->mac_regs;
3273 static u32 mask_pattern[2][4] = {
3274 {0x00203000, 0x000003C0, 0x00000000, 0x0000000}, /* ARP */
3275 {0xfffff000, 0xffffffff, 0xffffffff, 0x000ffff} /* Magic Packet */
3278 writew(0xFFFF, ®s->WOLCRClr);
3279 writeb(WOLCFG_SAB | WOLCFG_SAM, ®s->WOLCFGSet);
3280 writew(WOLCR_MAGIC_EN, ®s->WOLCRSet);
3283 if (vptr->wol_opts & VELOCITY_WOL_PHY)
3284 writew((WOLCR_LINKON_EN|WOLCR_LINKOFF_EN), ®s->WOLCRSet);
3287 if (vptr->wol_opts & VELOCITY_WOL_UCAST) {
3288 writew(WOLCR_UNICAST_EN, ®s->WOLCRSet);
3291 if (vptr->wol_opts & VELOCITY_WOL_ARP) {
3292 struct arp_packet *arp = (struct arp_packet *) buf;
3294 memset(buf, 0, sizeof(struct arp_packet) + 7);
3296 for (i = 0; i < 4; i++)
3297 writel(mask_pattern[0][i], ®s->ByteMask[0][i]);
3299 arp->type = htons(ETH_P_ARP);
3300 arp->ar_op = htons(1);
3302 memcpy(arp->ar_tip, vptr->ip_addr, 4);
3304 crc = wol_calc_crc((sizeof(struct arp_packet) + 7) / 8, buf,
3305 (u8 *) & mask_pattern[0][0]);
3307 writew(crc, ®s->PatternCRC[0]);
3308 writew(WOLCR_ARP_EN, ®s->WOLCRSet);
3311 BYTE_REG_BITS_ON(PWCFG_WOLTYPE, ®s->PWCFGSet);
3312 BYTE_REG_BITS_ON(PWCFG_LEGACY_WOLEN, ®s->PWCFGSet);
3314 writew(0x0FFF, ®s->WOLSRClr);
3316 if (vptr->mii_status & VELOCITY_AUTONEG_ENABLE) {
3317 if (PHYID_GET_PHY_ID(vptr->phy_id) == PHYID_CICADA_CS8201)
3318 MII_REG_BITS_ON(AUXCR_MDPPS, MII_REG_AUXCR, vptr->mac_regs);
3320 MII_REG_BITS_OFF(G1000CR_1000FD | G1000CR_1000, MII_REG_G1000CR, vptr->mac_regs);
3323 if (vptr->mii_status & VELOCITY_SPEED_1000)
3324 MII_REG_BITS_ON(BMCR_REAUTO, MII_REG_BMCR, vptr->mac_regs);
3326 BYTE_REG_BITS_ON(CHIPGCR_FCMODE, ®s->CHIPGCR);
3330 GCR = readb(®s->CHIPGCR);
3331 GCR = (GCR & ~CHIPGCR_FCGMII) | CHIPGCR_FCFDX;
3332 writeb(GCR, ®s->CHIPGCR);
3335 BYTE_REG_BITS_OFF(ISR_PWEI, ®s->ISR);
3336 /* Turn on SWPTAG just before entering power mode */
3337 BYTE_REG_BITS_ON(STICKHW_SWPTAG, ®s->STICKHW);
3338 /* Go to bed ..... */
3339 BYTE_REG_BITS_ON((STICKHW_DS1 | STICKHW_DS0), ®s->STICKHW);
3344 static int velocity_suspend(struct pci_dev *pdev, pm_message_t state)
3346 struct net_device *dev = pci_get_drvdata(pdev);
3347 struct velocity_info *vptr = netdev_priv(dev);
3348 unsigned long flags;
3350 if(!netif_running(vptr->dev))
3353 netif_device_detach(vptr->dev);
3355 spin_lock_irqsave(&vptr->lock, flags);
3356 pci_save_state(pdev);
3358 if (vptr->flags & VELOCITY_FLAGS_WOL_ENABLED) {
3359 velocity_get_ip(vptr);
3360 velocity_save_context(vptr, &vptr->context);
3361 velocity_shutdown(vptr);
3362 velocity_set_wol(vptr);
3363 pci_enable_wake(pdev, PCI_D3hot, 1);
3364 pci_set_power_state(pdev, PCI_D3hot);
3366 velocity_save_context(vptr, &vptr->context);
3367 velocity_shutdown(vptr);
3368 pci_disable_device(pdev);
3369 pci_set_power_state(pdev, pci_choose_state(pdev, state));
3372 pci_set_power_state(pdev, pci_choose_state(pdev, state));
3374 spin_unlock_irqrestore(&vptr->lock, flags);
3378 static int velocity_resume(struct pci_dev *pdev)
3380 struct net_device *dev = pci_get_drvdata(pdev);
3381 struct velocity_info *vptr = netdev_priv(dev);
3382 unsigned long flags;
3385 if(!netif_running(vptr->dev))
3388 pci_set_power_state(pdev, PCI_D0);
3389 pci_enable_wake(pdev, 0, 0);
3390 pci_restore_state(pdev);
3392 mac_wol_reset(vptr->mac_regs);
3394 spin_lock_irqsave(&vptr->lock, flags);
3395 velocity_restore_context(vptr, &vptr->context);
3396 velocity_init_registers(vptr, VELOCITY_INIT_WOL);
3397 mac_disable_int(vptr->mac_regs);
3399 velocity_tx_srv(vptr, 0);
3401 for (i = 0; i < vptr->tx.numq; i++) {
3402 if (vptr->tx.used[i]) {
3403 mac_tx_queue_wake(vptr->mac_regs, i);
3407 mac_enable_int(vptr->mac_regs);
3408 spin_unlock_irqrestore(&vptr->lock, flags);
3409 netif_device_attach(vptr->dev);
3416 static int velocity_netdev_event(struct notifier_block *nb, unsigned long notification, void *ptr)
3418 struct in_ifaddr *ifa = (struct in_ifaddr *) ptr;
3419 struct net_device *dev = ifa->ifa_dev->dev;
3420 struct velocity_info *vptr;
3421 unsigned long flags;
3423 if (dev_net(dev) != &init_net)
3426 spin_lock_irqsave(&velocity_dev_list_lock, flags);
3427 list_for_each_entry(vptr, &velocity_dev_list, list) {
3428 if (vptr->dev == dev) {
3429 velocity_get_ip(vptr);
3433 spin_unlock_irqrestore(&velocity_dev_list_lock, flags);