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);
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 */
853 * velocity_found1 - set up discovered velocity card
855 * @ent: PCI device table entry that matched
857 * Configure a discovered adapter from scratch. Return a negative
858 * errno error code on failure paths.
861 static int __devinit velocity_found1(struct pci_dev *pdev, const struct pci_device_id *ent)
863 static int first = 1;
864 struct net_device *dev;
866 const struct velocity_info_tbl *info = &chip_info_table[ent->driver_data];
867 struct velocity_info *vptr;
868 struct mac_regs __iomem * regs;
871 /* FIXME: this driver, like almost all other ethernet drivers,
872 * can support more than MAX_UNITS.
874 if (velocity_nics >= MAX_UNITS) {
875 dev_notice(&pdev->dev, "already found %d NICs.\n",
880 dev = alloc_etherdev(sizeof(struct velocity_info));
882 dev_err(&pdev->dev, "allocate net device failed.\n");
886 /* Chain it all together */
888 SET_NETDEV_DEV(dev, &pdev->dev);
889 vptr = netdev_priv(dev);
893 printk(KERN_INFO "%s Ver. %s\n",
894 VELOCITY_FULL_DRV_NAM, VELOCITY_VERSION);
895 printk(KERN_INFO "Copyright (c) 2002, 2003 VIA Networking Technologies, Inc.\n");
896 printk(KERN_INFO "Copyright (c) 2004 Red Hat Inc.\n");
900 velocity_init_info(pdev, vptr, info);
904 dev->irq = pdev->irq;
906 ret = pci_enable_device(pdev);
910 ret = velocity_get_pci_info(vptr, pdev);
912 /* error message already printed */
916 ret = pci_request_regions(pdev, VELOCITY_NAME);
918 dev_err(&pdev->dev, "No PCI resources.\n");
922 regs = ioremap(vptr->memaddr, VELOCITY_IO_SIZE);
925 goto err_release_res;
928 vptr->mac_regs = regs;
932 dev->base_addr = vptr->ioaddr;
934 for (i = 0; i < 6; i++)
935 dev->dev_addr[i] = readb(®s->PAR[i]);
938 velocity_get_options(&vptr->options, velocity_nics, dev->name);
941 * Mask out the options cannot be set to the chip
944 vptr->options.flags &= info->flags;
947 * Enable the chip specified capbilities
950 vptr->flags = vptr->options.flags | (info->flags & 0xFF000000UL);
952 vptr->wol_opts = vptr->options.wol_opts;
953 vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED;
955 vptr->phy_id = MII_GET_PHY_ID(vptr->mac_regs);
957 dev->irq = pdev->irq;
958 dev->open = velocity_open;
959 dev->hard_start_xmit = velocity_xmit;
960 dev->stop = velocity_close;
961 dev->get_stats = velocity_get_stats;
962 dev->set_multicast_list = velocity_set_multi;
963 dev->do_ioctl = velocity_ioctl;
964 dev->ethtool_ops = &velocity_ethtool_ops;
965 dev->change_mtu = velocity_change_mtu;
967 dev->vlan_rx_add_vid = velocity_vlan_rx_add_vid;
968 dev->vlan_rx_kill_vid = velocity_vlan_rx_kill_vid;
969 dev->vlan_rx_register = velocity_vlan_rx_register;
971 #ifdef VELOCITY_ZERO_COPY_SUPPORT
972 dev->features |= NETIF_F_SG;
974 dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_FILTER |
977 if (vptr->flags & VELOCITY_FLAGS_TX_CSUM)
978 dev->features |= NETIF_F_IP_CSUM;
980 ret = register_netdev(dev);
984 if (velocity_get_link(dev))
985 netif_carrier_off(dev);
987 velocity_print_info(vptr);
988 pci_set_drvdata(pdev, dev);
990 /* and leave the chip powered down */
992 pci_set_power_state(pdev, PCI_D3hot);
997 spin_lock_irqsave(&velocity_dev_list_lock, flags);
998 list_add(&vptr->list, &velocity_dev_list);
999 spin_unlock_irqrestore(&velocity_dev_list_lock, flags);
1009 pci_release_regions(pdev);
1011 pci_disable_device(pdev);
1018 * velocity_print_info - per driver data
1021 * Print per driver data as the kernel driver finds Velocity
1025 static void __devinit velocity_print_info(struct velocity_info *vptr)
1027 struct net_device *dev = vptr->dev;
1029 printk(KERN_INFO "%s: %s\n", dev->name, get_chip_name(vptr->chip_id));
1030 printk(KERN_INFO "%s: Ethernet Address: %2.2X:%2.2X:%2.2X:%2.2X:%2.2X:%2.2X\n",
1032 dev->dev_addr[0], dev->dev_addr[1], dev->dev_addr[2],
1033 dev->dev_addr[3], dev->dev_addr[4], dev->dev_addr[5]);
1037 * velocity_init_info - init private data
1039 * @vptr: Velocity info
1042 * Set up the initial velocity_info struct for the device that has been
1046 static void __devinit velocity_init_info(struct pci_dev *pdev,
1047 struct velocity_info *vptr,
1048 const struct velocity_info_tbl *info)
1050 memset(vptr, 0, sizeof(struct velocity_info));
1053 vptr->chip_id = info->chip_id;
1054 vptr->tx.numq = info->txqueue;
1055 vptr->multicast_limit = MCAM_SIZE;
1056 spin_lock_init(&vptr->lock);
1057 INIT_LIST_HEAD(&vptr->list);
1061 * velocity_get_pci_info - retrieve PCI info for device
1062 * @vptr: velocity device
1063 * @pdev: PCI device it matches
1065 * Retrieve the PCI configuration space data that interests us from
1066 * the kernel PCI layer
1069 static int __devinit velocity_get_pci_info(struct velocity_info *vptr, struct pci_dev *pdev)
1071 vptr->rev_id = pdev->revision;
1073 pci_set_master(pdev);
1075 vptr->ioaddr = pci_resource_start(pdev, 0);
1076 vptr->memaddr = pci_resource_start(pdev, 1);
1078 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_IO)) {
1080 "region #0 is not an I/O resource, aborting.\n");
1084 if ((pci_resource_flags(pdev, 1) & IORESOURCE_IO)) {
1086 "region #1 is an I/O resource, aborting.\n");
1090 if (pci_resource_len(pdev, 1) < VELOCITY_IO_SIZE) {
1091 dev_err(&pdev->dev, "region #1 is too small.\n");
1100 * velocity_init_dma_rings - set up DMA rings
1101 * @vptr: Velocity to set up
1103 * Allocate PCI mapped DMA rings for the receive and transmit layer
1107 static int velocity_init_dma_rings(struct velocity_info *vptr)
1109 struct velocity_opt *opt = &vptr->options;
1110 const unsigned int rx_ring_size = opt->numrx * sizeof(struct rx_desc);
1111 const unsigned int tx_ring_size = opt->numtx * sizeof(struct tx_desc);
1112 struct pci_dev *pdev = vptr->pdev;
1113 dma_addr_t pool_dma;
1118 * Allocate all RD/TD rings a single pool.
1120 * pci_alloc_consistent() fulfills the requirement for 64 bytes
1123 pool = pci_alloc_consistent(pdev, tx_ring_size * vptr->tx.numq +
1124 rx_ring_size, &pool_dma);
1126 dev_err(&pdev->dev, "%s : DMA memory allocation failed.\n",
1131 vptr->rx.ring = pool;
1132 vptr->rx.pool_dma = pool_dma;
1134 pool += rx_ring_size;
1135 pool_dma += rx_ring_size;
1137 for (i = 0; i < vptr->tx.numq; i++) {
1138 vptr->tx.rings[i] = pool;
1139 vptr->tx.pool_dma[i] = pool_dma;
1140 pool += tx_ring_size;
1141 pool_dma += tx_ring_size;
1148 * velocity_free_dma_rings - free PCI ring pointers
1149 * @vptr: Velocity to free from
1151 * Clean up the PCI ring buffers allocated to this velocity.
1154 static void velocity_free_dma_rings(struct velocity_info *vptr)
1156 const int size = vptr->options.numrx * sizeof(struct rx_desc) +
1157 vptr->options.numtx * sizeof(struct tx_desc) * vptr->tx.numq;
1159 pci_free_consistent(vptr->pdev, size, vptr->rx.ring, vptr->rx.pool_dma);
1162 static void velocity_give_many_rx_descs(struct velocity_info *vptr)
1164 struct mac_regs __iomem *regs = vptr->mac_regs;
1165 int avail, dirty, unusable;
1168 * RD number must be equal to 4X per hardware spec
1169 * (programming guide rev 1.20, p.13)
1171 if (vptr->rx.filled < 4)
1176 unusable = vptr->rx.filled & 0x0003;
1177 dirty = vptr->rx.dirty - unusable;
1178 for (avail = vptr->rx.filled & 0xfffc; avail; avail--) {
1179 dirty = (dirty > 0) ? dirty - 1 : vptr->options.numrx - 1;
1180 vptr->rx.ring[dirty].rdesc0.len |= OWNED_BY_NIC;
1183 writew(vptr->rx.filled & 0xfffc, ®s->RBRDU);
1184 vptr->rx.filled = unusable;
1187 static int velocity_rx_refill(struct velocity_info *vptr)
1189 int dirty = vptr->rx.dirty, done = 0;
1192 struct rx_desc *rd = vptr->rx.ring + dirty;
1194 /* Fine for an all zero Rx desc at init time as well */
1195 if (rd->rdesc0.len & OWNED_BY_NIC)
1198 if (!vptr->rx.info[dirty].skb) {
1199 if (velocity_alloc_rx_buf(vptr, dirty) < 0)
1203 dirty = (dirty < vptr->options.numrx - 1) ? dirty + 1 : 0;
1204 } while (dirty != vptr->rx.curr);
1207 vptr->rx.dirty = dirty;
1208 vptr->rx.filled += done;
1214 static void velocity_set_rxbufsize(struct velocity_info *vptr, int mtu)
1216 vptr->rx.buf_sz = (mtu <= ETH_DATA_LEN) ? PKT_BUF_SZ : mtu + 32;
1220 * velocity_init_rd_ring - set up receive ring
1221 * @vptr: velocity to configure
1223 * Allocate and set up the receive buffers for each ring slot and
1224 * assign them to the network adapter.
1227 static int velocity_init_rd_ring(struct velocity_info *vptr)
1231 vptr->rx.info = kcalloc(vptr->options.numrx,
1232 sizeof(struct velocity_rd_info), GFP_KERNEL);
1236 velocity_init_rx_ring_indexes(vptr);
1238 if (velocity_rx_refill(vptr) != vptr->options.numrx) {
1239 VELOCITY_PRT(MSG_LEVEL_ERR, KERN_ERR
1240 "%s: failed to allocate RX buffer.\n", vptr->dev->name);
1241 velocity_free_rd_ring(vptr);
1251 * velocity_free_rd_ring - free receive ring
1252 * @vptr: velocity to clean up
1254 * Free the receive buffers for each ring slot and any
1255 * attached socket buffers that need to go away.
1258 static void velocity_free_rd_ring(struct velocity_info *vptr)
1262 if (vptr->rx.info == NULL)
1265 for (i = 0; i < vptr->options.numrx; i++) {
1266 struct velocity_rd_info *rd_info = &(vptr->rx.info[i]);
1267 struct rx_desc *rd = vptr->rx.ring + i;
1269 memset(rd, 0, sizeof(*rd));
1273 pci_unmap_single(vptr->pdev, rd_info->skb_dma, vptr->rx.buf_sz,
1274 PCI_DMA_FROMDEVICE);
1275 rd_info->skb_dma = 0;
1277 dev_kfree_skb(rd_info->skb);
1278 rd_info->skb = NULL;
1281 kfree(vptr->rx.info);
1282 vptr->rx.info = NULL;
1286 * velocity_init_td_ring - set up transmit ring
1289 * Set up the transmit ring and chain the ring pointers together.
1290 * Returns zero on success or a negative posix errno code for
1294 static int velocity_init_td_ring(struct velocity_info *vptr)
1299 /* Init the TD ring entries */
1300 for (j = 0; j < vptr->tx.numq; j++) {
1301 curr = vptr->tx.pool_dma[j];
1303 vptr->tx.infos[j] = kcalloc(vptr->options.numtx,
1304 sizeof(struct velocity_td_info),
1306 if (!vptr->tx.infos[j]) {
1308 kfree(vptr->tx.infos[j]);
1312 vptr->tx.tail[j] = vptr->tx.curr[j] = vptr->tx.used[j] = 0;
1318 * FIXME: could we merge this with velocity_free_tx_buf ?
1321 static void velocity_free_td_ring_entry(struct velocity_info *vptr,
1324 struct velocity_td_info * td_info = &(vptr->tx.infos[q][n]);
1327 if (td_info == NULL)
1331 for (i = 0; i < td_info->nskb_dma; i++)
1333 if (td_info->skb_dma[i]) {
1334 pci_unmap_single(vptr->pdev, td_info->skb_dma[i],
1335 td_info->skb->len, PCI_DMA_TODEVICE);
1336 td_info->skb_dma[i] = 0;
1339 dev_kfree_skb(td_info->skb);
1340 td_info->skb = NULL;
1345 * velocity_free_td_ring - free td ring
1348 * Free up the transmit ring for this particular velocity adapter.
1349 * We free the ring contents but not the ring itself.
1352 static void velocity_free_td_ring(struct velocity_info *vptr)
1356 for (j = 0; j < vptr->tx.numq; j++) {
1357 if (vptr->tx.infos[j] == NULL)
1359 for (i = 0; i < vptr->options.numtx; i++) {
1360 velocity_free_td_ring_entry(vptr, j, i);
1363 kfree(vptr->tx.infos[j]);
1364 vptr->tx.infos[j] = NULL;
1369 * velocity_rx_srv - service RX interrupt
1371 * @status: adapter status (unused)
1373 * Walk the receive ring of the velocity adapter and remove
1374 * any received packets from the receive queue. Hand the ring
1375 * slots back to the adapter for reuse.
1378 static int velocity_rx_srv(struct velocity_info *vptr, int status)
1380 struct net_device_stats *stats = &vptr->stats;
1381 int rd_curr = vptr->rx.curr;
1385 struct rx_desc *rd = vptr->rx.ring + rd_curr;
1387 if (!vptr->rx.info[rd_curr].skb)
1390 if (rd->rdesc0.len & OWNED_BY_NIC)
1396 * Don't drop CE or RL error frame although RXOK is off
1398 if (rd->rdesc0.RSR & (RSR_RXOK | RSR_CE | RSR_RL)) {
1399 if (velocity_receive_frame(vptr, rd_curr) < 0)
1400 stats->rx_dropped++;
1402 if (rd->rdesc0.RSR & RSR_CRC)
1403 stats->rx_crc_errors++;
1404 if (rd->rdesc0.RSR & RSR_FAE)
1405 stats->rx_frame_errors++;
1407 stats->rx_dropped++;
1410 rd->size |= RX_INTEN;
1412 vptr->dev->last_rx = jiffies;
1415 if (rd_curr >= vptr->options.numrx)
1417 } while (++works <= 15);
1419 vptr->rx.curr = rd_curr;
1421 if ((works > 0) && (velocity_rx_refill(vptr) > 0))
1422 velocity_give_many_rx_descs(vptr);
1429 * velocity_rx_csum - checksum process
1430 * @rd: receive packet descriptor
1431 * @skb: network layer packet buffer
1433 * Process the status bits for the received packet and determine
1434 * if the checksum was computed and verified by the hardware
1437 static inline void velocity_rx_csum(struct rx_desc *rd, struct sk_buff *skb)
1439 skb->ip_summed = CHECKSUM_NONE;
1441 if (rd->rdesc1.CSM & CSM_IPKT) {
1442 if (rd->rdesc1.CSM & CSM_IPOK) {
1443 if ((rd->rdesc1.CSM & CSM_TCPKT) ||
1444 (rd->rdesc1.CSM & CSM_UDPKT)) {
1445 if (!(rd->rdesc1.CSM & CSM_TUPOK)) {
1449 skb->ip_summed = CHECKSUM_UNNECESSARY;
1455 * velocity_rx_copy - in place Rx copy for small packets
1456 * @rx_skb: network layer packet buffer candidate
1457 * @pkt_size: received data size
1458 * @rd: receive packet descriptor
1459 * @dev: network device
1461 * Replace the current skb that is scheduled for Rx processing by a
1462 * shorter, immediatly allocated skb, if the received packet is small
1463 * enough. This function returns a negative value if the received
1464 * packet is too big or if memory is exhausted.
1466 static int velocity_rx_copy(struct sk_buff **rx_skb, int pkt_size,
1467 struct velocity_info *vptr)
1470 if (pkt_size < rx_copybreak) {
1471 struct sk_buff *new_skb;
1473 new_skb = netdev_alloc_skb(vptr->dev, pkt_size + 2);
1475 new_skb->ip_summed = rx_skb[0]->ip_summed;
1476 skb_reserve(new_skb, 2);
1477 skb_copy_from_linear_data(*rx_skb, new_skb->data, pkt_size);
1487 * velocity_iph_realign - IP header alignment
1488 * @vptr: velocity we are handling
1489 * @skb: network layer packet buffer
1490 * @pkt_size: received data size
1492 * Align IP header on a 2 bytes boundary. This behavior can be
1493 * configured by the user.
1495 static inline void velocity_iph_realign(struct velocity_info *vptr,
1496 struct sk_buff *skb, int pkt_size)
1498 if (vptr->flags & VELOCITY_FLAGS_IP_ALIGN) {
1499 memmove(skb->data + 2, skb->data, pkt_size);
1500 skb_reserve(skb, 2);
1505 * velocity_receive_frame - received packet processor
1506 * @vptr: velocity we are handling
1509 * A packet has arrived. We process the packet and if appropriate
1510 * pass the frame up the network stack
1513 static int velocity_receive_frame(struct velocity_info *vptr, int idx)
1515 void (*pci_action)(struct pci_dev *, dma_addr_t, size_t, int);
1516 struct net_device_stats *stats = &vptr->stats;
1517 struct velocity_rd_info *rd_info = &(vptr->rx.info[idx]);
1518 struct rx_desc *rd = &(vptr->rx.ring[idx]);
1519 int pkt_len = le16_to_cpu(rd->rdesc0.len) & 0x3fff;
1520 struct sk_buff *skb;
1522 if (rd->rdesc0.RSR & (RSR_STP | RSR_EDP)) {
1523 VELOCITY_PRT(MSG_LEVEL_VERBOSE, KERN_ERR " %s : the received frame span multple RDs.\n", vptr->dev->name);
1524 stats->rx_length_errors++;
1528 if (rd->rdesc0.RSR & RSR_MAR)
1529 vptr->stats.multicast++;
1533 pci_dma_sync_single_for_cpu(vptr->pdev, rd_info->skb_dma,
1534 vptr->rx.buf_sz, PCI_DMA_FROMDEVICE);
1537 * Drop frame not meeting IEEE 802.3
1540 if (vptr->flags & VELOCITY_FLAGS_VAL_PKT_LEN) {
1541 if (rd->rdesc0.RSR & RSR_RL) {
1542 stats->rx_length_errors++;
1547 pci_action = pci_dma_sync_single_for_device;
1549 velocity_rx_csum(rd, skb);
1551 if (velocity_rx_copy(&skb, pkt_len, vptr) < 0) {
1552 velocity_iph_realign(vptr, skb, pkt_len);
1553 pci_action = pci_unmap_single;
1554 rd_info->skb = NULL;
1557 pci_action(vptr->pdev, rd_info->skb_dma, vptr->rx.buf_sz,
1558 PCI_DMA_FROMDEVICE);
1560 skb_put(skb, pkt_len - 4);
1561 skb->protocol = eth_type_trans(skb, vptr->dev);
1563 if (vptr->vlgrp && (rd->rdesc0.RSR & RSR_DETAG)) {
1564 vlan_hwaccel_rx(skb, vptr->vlgrp,
1565 swab16(le16_to_cpu(rd->rdesc1.PQTAG)));
1569 stats->rx_bytes += pkt_len;
1575 * velocity_alloc_rx_buf - allocate aligned receive buffer
1579 * Allocate a new full sized buffer for the reception of a frame and
1580 * map it into PCI space for the hardware to use. The hardware
1581 * requires *64* byte alignment of the buffer which makes life
1582 * less fun than would be ideal.
1585 static int velocity_alloc_rx_buf(struct velocity_info *vptr, int idx)
1587 struct rx_desc *rd = &(vptr->rx.ring[idx]);
1588 struct velocity_rd_info *rd_info = &(vptr->rx.info[idx]);
1590 rd_info->skb = dev_alloc_skb(vptr->rx.buf_sz + 64);
1591 if (rd_info->skb == NULL)
1595 * Do the gymnastics to get the buffer head for data at
1598 skb_reserve(rd_info->skb, (unsigned long) rd_info->skb->data & 63);
1599 rd_info->skb_dma = pci_map_single(vptr->pdev, rd_info->skb->data,
1600 vptr->rx.buf_sz, PCI_DMA_FROMDEVICE);
1603 * Fill in the descriptor to match
1606 *((u32 *) & (rd->rdesc0)) = 0;
1607 rd->size = cpu_to_le16(vptr->rx.buf_sz) | RX_INTEN;
1608 rd->pa_low = cpu_to_le32(rd_info->skb_dma);
1614 * tx_srv - transmit interrupt service
1618 * Scan the queues looking for transmitted packets that
1619 * we can complete and clean up. Update any statistics as
1623 static int velocity_tx_srv(struct velocity_info *vptr, u32 status)
1630 struct velocity_td_info *tdinfo;
1631 struct net_device_stats *stats = &vptr->stats;
1633 for (qnum = 0; qnum < vptr->tx.numq; qnum++) {
1634 for (idx = vptr->tx.tail[qnum]; vptr->tx.used[qnum] > 0;
1635 idx = (idx + 1) % vptr->options.numtx) {
1640 td = &(vptr->tx.rings[qnum][idx]);
1641 tdinfo = &(vptr->tx.infos[qnum][idx]);
1643 if (td->tdesc0.len & OWNED_BY_NIC)
1649 if (td->tdesc0.TSR & TSR0_TERR) {
1651 stats->tx_dropped++;
1652 if (td->tdesc0.TSR & TSR0_CDH)
1653 stats->tx_heartbeat_errors++;
1654 if (td->tdesc0.TSR & TSR0_CRS)
1655 stats->tx_carrier_errors++;
1656 if (td->tdesc0.TSR & TSR0_ABT)
1657 stats->tx_aborted_errors++;
1658 if (td->tdesc0.TSR & TSR0_OWC)
1659 stats->tx_window_errors++;
1661 stats->tx_packets++;
1662 stats->tx_bytes += tdinfo->skb->len;
1664 velocity_free_tx_buf(vptr, tdinfo);
1665 vptr->tx.used[qnum]--;
1667 vptr->tx.tail[qnum] = idx;
1669 if (AVAIL_TD(vptr, qnum) < 1) {
1674 * Look to see if we should kick the transmit network
1675 * layer for more work.
1677 if (netif_queue_stopped(vptr->dev) && (full == 0)
1678 && (!(vptr->mii_status & VELOCITY_LINK_FAIL))) {
1679 netif_wake_queue(vptr->dev);
1685 * velocity_print_link_status - link status reporting
1686 * @vptr: velocity to report on
1688 * Turn the link status of the velocity card into a kernel log
1689 * description of the new link state, detailing speed and duplex
1693 static void velocity_print_link_status(struct velocity_info *vptr)
1696 if (vptr->mii_status & VELOCITY_LINK_FAIL) {
1697 VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: failed to detect cable link\n", vptr->dev->name);
1698 } else if (vptr->options.spd_dpx == SPD_DPX_AUTO) {
1699 VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: Link auto-negotiation", vptr->dev->name);
1701 if (vptr->mii_status & VELOCITY_SPEED_1000)
1702 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 1000M bps");
1703 else if (vptr->mii_status & VELOCITY_SPEED_100)
1704 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 100M bps");
1706 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 10M bps");
1708 if (vptr->mii_status & VELOCITY_DUPLEX_FULL)
1709 VELOCITY_PRT(MSG_LEVEL_INFO, " full duplex\n");
1711 VELOCITY_PRT(MSG_LEVEL_INFO, " half duplex\n");
1713 VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: Link forced", vptr->dev->name);
1714 switch (vptr->options.spd_dpx) {
1715 case SPD_DPX_100_HALF:
1716 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 100M bps half duplex\n");
1718 case SPD_DPX_100_FULL:
1719 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 100M bps full duplex\n");
1721 case SPD_DPX_10_HALF:
1722 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 10M bps half duplex\n");
1724 case SPD_DPX_10_FULL:
1725 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 10M bps full duplex\n");
1734 * velocity_error - handle error from controller
1736 * @status: card status
1738 * Process an error report from the hardware and attempt to recover
1739 * the card itself. At the moment we cannot recover from some
1740 * theoretically impossible errors but this could be fixed using
1741 * the pci_device_failed logic to bounce the hardware
1745 static void velocity_error(struct velocity_info *vptr, int status)
1748 if (status & ISR_TXSTLI) {
1749 struct mac_regs __iomem * regs = vptr->mac_regs;
1751 printk(KERN_ERR "TD structure error TDindex=%hx\n", readw(®s->TDIdx[0]));
1752 BYTE_REG_BITS_ON(TXESR_TDSTR, ®s->TXESR);
1753 writew(TRDCSR_RUN, ®s->TDCSRClr);
1754 netif_stop_queue(vptr->dev);
1756 /* FIXME: port over the pci_device_failed code and use it
1760 if (status & ISR_SRCI) {
1761 struct mac_regs __iomem * regs = vptr->mac_regs;
1764 if (vptr->options.spd_dpx == SPD_DPX_AUTO) {
1765 vptr->mii_status = check_connection_type(regs);
1768 * If it is a 3119, disable frame bursting in
1769 * halfduplex mode and enable it in fullduplex
1772 if (vptr->rev_id < REV_ID_VT3216_A0) {
1773 if (vptr->mii_status | VELOCITY_DUPLEX_FULL)
1774 BYTE_REG_BITS_ON(TCR_TB2BDIS, ®s->TCR);
1776 BYTE_REG_BITS_OFF(TCR_TB2BDIS, ®s->TCR);
1779 * Only enable CD heart beat counter in 10HD mode
1781 if (!(vptr->mii_status & VELOCITY_DUPLEX_FULL) && (vptr->mii_status & VELOCITY_SPEED_10)) {
1782 BYTE_REG_BITS_OFF(TESTCFG_HBDIS, ®s->TESTCFG);
1784 BYTE_REG_BITS_ON(TESTCFG_HBDIS, ®s->TESTCFG);
1788 * Get link status from PHYSR0
1790 linked = readb(®s->PHYSR0) & PHYSR0_LINKGD;
1793 vptr->mii_status &= ~VELOCITY_LINK_FAIL;
1794 netif_carrier_on(vptr->dev);
1796 vptr->mii_status |= VELOCITY_LINK_FAIL;
1797 netif_carrier_off(vptr->dev);
1800 velocity_print_link_status(vptr);
1801 enable_flow_control_ability(vptr);
1804 * Re-enable auto-polling because SRCI will disable
1808 enable_mii_autopoll(regs);
1810 if (vptr->mii_status & VELOCITY_LINK_FAIL)
1811 netif_stop_queue(vptr->dev);
1813 netif_wake_queue(vptr->dev);
1816 if (status & ISR_MIBFI)
1817 velocity_update_hw_mibs(vptr);
1818 if (status & ISR_LSTEI)
1819 mac_rx_queue_wake(vptr->mac_regs);
1823 * velocity_free_tx_buf - free transmit buffer
1827 * Release an transmit buffer. If the buffer was preallocated then
1828 * recycle it, if not then unmap the buffer.
1831 static void velocity_free_tx_buf(struct velocity_info *vptr, struct velocity_td_info *tdinfo)
1833 struct sk_buff *skb = tdinfo->skb;
1837 * Don't unmap the pre-allocated tx_bufs
1839 if (tdinfo->skb_dma) {
1841 for (i = 0; i < tdinfo->nskb_dma; i++) {
1842 #ifdef VELOCITY_ZERO_COPY_SUPPORT
1843 pci_unmap_single(vptr->pdev, tdinfo->skb_dma[i], le16_to_cpu(td->tdesc1.len), PCI_DMA_TODEVICE);
1845 pci_unmap_single(vptr->pdev, tdinfo->skb_dma[i], skb->len, PCI_DMA_TODEVICE);
1847 tdinfo->skb_dma[i] = 0;
1850 dev_kfree_skb_irq(skb);
1854 static int velocity_init_rings(struct velocity_info *vptr, int mtu)
1858 velocity_set_rxbufsize(vptr, mtu);
1860 ret = velocity_init_dma_rings(vptr);
1864 ret = velocity_init_rd_ring(vptr);
1866 goto err_free_dma_rings_0;
1868 ret = velocity_init_td_ring(vptr);
1870 goto err_free_rd_ring_1;
1875 velocity_free_rd_ring(vptr);
1876 err_free_dma_rings_0:
1877 velocity_free_dma_rings(vptr);
1881 static void velocity_free_rings(struct velocity_info *vptr)
1883 velocity_free_td_ring(vptr);
1884 velocity_free_rd_ring(vptr);
1885 velocity_free_dma_rings(vptr);
1889 * velocity_open - interface activation callback
1890 * @dev: network layer device to open
1892 * Called when the network layer brings the interface up. Returns
1893 * a negative posix error code on failure, or zero on success.
1895 * All the ring allocation and set up is done on open for this
1896 * adapter to minimise memory usage when inactive
1899 static int velocity_open(struct net_device *dev)
1901 struct velocity_info *vptr = netdev_priv(dev);
1904 ret = velocity_init_rings(vptr, dev->mtu);
1908 /* Ensure chip is running */
1909 pci_set_power_state(vptr->pdev, PCI_D0);
1911 velocity_give_many_rx_descs(vptr);
1913 velocity_init_registers(vptr, VELOCITY_INIT_COLD);
1915 ret = request_irq(vptr->pdev->irq, &velocity_intr, IRQF_SHARED,
1918 /* Power down the chip */
1919 pci_set_power_state(vptr->pdev, PCI_D3hot);
1920 velocity_free_rings(vptr);
1924 mac_enable_int(vptr->mac_regs);
1925 netif_start_queue(dev);
1926 vptr->flags |= VELOCITY_FLAGS_OPENED;
1932 * velocity_change_mtu - MTU change callback
1933 * @dev: network device
1934 * @new_mtu: desired MTU
1936 * Handle requests from the networking layer for MTU change on
1937 * this interface. It gets called on a change by the network layer.
1938 * Return zero for success or negative posix error code.
1941 static int velocity_change_mtu(struct net_device *dev, int new_mtu)
1943 struct velocity_info *vptr = netdev_priv(dev);
1946 if ((new_mtu < VELOCITY_MIN_MTU) || new_mtu > (VELOCITY_MAX_MTU)) {
1947 VELOCITY_PRT(MSG_LEVEL_ERR, KERN_NOTICE "%s: Invalid MTU.\n",
1953 if (!netif_running(dev)) {
1958 if (dev->mtu != new_mtu) {
1959 struct velocity_info *tmp_vptr;
1960 unsigned long flags;
1964 tmp_vptr = kzalloc(sizeof(*tmp_vptr), GFP_KERNEL);
1970 tmp_vptr->dev = dev;
1971 tmp_vptr->pdev = vptr->pdev;
1972 tmp_vptr->options = vptr->options;
1973 tmp_vptr->tx.numq = vptr->tx.numq;
1975 ret = velocity_init_rings(tmp_vptr, new_mtu);
1977 goto out_free_tmp_vptr_1;
1979 spin_lock_irqsave(&vptr->lock, flags);
1981 netif_stop_queue(dev);
1982 velocity_shutdown(vptr);
1987 vptr->rx = tmp_vptr->rx;
1988 vptr->tx = tmp_vptr->tx;
1995 velocity_give_many_rx_descs(vptr);
1997 velocity_init_registers(vptr, VELOCITY_INIT_COLD);
1999 mac_enable_int(vptr->mac_regs);
2000 netif_start_queue(dev);
2002 spin_unlock_irqrestore(&vptr->lock, flags);
2004 velocity_free_rings(tmp_vptr);
2006 out_free_tmp_vptr_1:
2014 * velocity_shutdown - shut down the chip
2015 * @vptr: velocity to deactivate
2017 * Shuts down the internal operations of the velocity and
2018 * disables interrupts, autopolling, transmit and receive
2021 static void velocity_shutdown(struct velocity_info *vptr)
2023 struct mac_regs __iomem * regs = vptr->mac_regs;
2024 mac_disable_int(regs);
2025 writel(CR0_STOP, ®s->CR0Set);
2026 writew(0xFFFF, ®s->TDCSRClr);
2027 writeb(0xFF, ®s->RDCSRClr);
2028 safe_disable_mii_autopoll(regs);
2029 mac_clear_isr(regs);
2033 * velocity_close - close adapter callback
2034 * @dev: network device
2036 * Callback from the network layer when the velocity is being
2037 * deactivated by the network layer
2040 static int velocity_close(struct net_device *dev)
2042 struct velocity_info *vptr = netdev_priv(dev);
2044 netif_stop_queue(dev);
2045 velocity_shutdown(vptr);
2047 if (vptr->flags & VELOCITY_FLAGS_WOL_ENABLED)
2048 velocity_get_ip(vptr);
2050 free_irq(dev->irq, dev);
2052 /* Power down the chip */
2053 pci_set_power_state(vptr->pdev, PCI_D3hot);
2055 velocity_free_rings(vptr);
2057 vptr->flags &= (~VELOCITY_FLAGS_OPENED);
2062 * velocity_xmit - transmit packet callback
2063 * @skb: buffer to transmit
2064 * @dev: network device
2066 * Called by the networ layer to request a packet is queued to
2067 * the velocity. Returns zero on success.
2070 static int velocity_xmit(struct sk_buff *skb, struct net_device *dev)
2072 struct velocity_info *vptr = netdev_priv(dev);
2074 struct tx_desc *td_ptr;
2075 struct velocity_td_info *tdinfo;
2076 unsigned long flags;
2077 int pktlen = skb->len;
2083 if (skb->len < ETH_ZLEN) {
2084 if (skb_padto(skb, ETH_ZLEN))
2089 len = cpu_to_le16(pktlen);
2091 #ifdef VELOCITY_ZERO_COPY_SUPPORT
2092 if (skb_shinfo(skb)->nr_frags > 6 && __skb_linearize(skb)) {
2098 spin_lock_irqsave(&vptr->lock, flags);
2100 index = vptr->tx.curr[qnum];
2101 td_ptr = &(vptr->tx.rings[qnum][index]);
2102 tdinfo = &(vptr->tx.infos[qnum][index]);
2104 td_ptr->tdesc1.TCR = TCR0_TIC;
2105 td_ptr->td_buf[0].size &= ~TD_QUEUE;
2107 #ifdef VELOCITY_ZERO_COPY_SUPPORT
2108 if (skb_shinfo(skb)->nr_frags > 0) {
2109 int nfrags = skb_shinfo(skb)->nr_frags;
2112 skb_copy_from_linear_data(skb, tdinfo->buf, skb->len);
2113 tdinfo->skb_dma[0] = tdinfo->buf_dma;
2114 td_ptr->tdesc0.len = len;
2115 td_ptr->tx.buf[0].pa_low = cpu_to_le32(tdinfo->skb_dma[0]);
2116 td_ptr->tx.buf[0].pa_high = 0;
2117 td_ptr->tx.buf[0].size = len; /* queue is 0 anyway */
2118 tdinfo->nskb_dma = 1;
2121 tdinfo->nskb_dma = 0;
2122 tdinfo->skb_dma[i] = pci_map_single(vptr->pdev, skb->data,
2123 skb_headlen(skb), PCI_DMA_TODEVICE);
2125 td_ptr->tdesc0.len = len;
2127 /* FIXME: support 48bit DMA later */
2128 td_ptr->tx.buf[i].pa_low = cpu_to_le32(tdinfo->skb_dma);
2129 td_ptr->tx.buf[i].pa_high = 0;
2130 td_ptr->tx.buf[i].size = cpu_to_le16(skb_headlen(skb));
2132 for (i = 0; i < nfrags; i++) {
2133 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
2134 void *addr = (void *)page_address(frag->page) + frag->page_offset;
2136 tdinfo->skb_dma[i + 1] = pci_map_single(vptr->pdev, addr, frag->size, PCI_DMA_TODEVICE);
2138 td_ptr->tx.buf[i + 1].pa_low = cpu_to_le32(tdinfo->skb_dma[i + 1]);
2139 td_ptr->tx.buf[i + 1].pa_high = 0;
2140 td_ptr->tx.buf[i + 1].size = cpu_to_le16(frag->size);
2142 tdinfo->nskb_dma = i - 1;
2149 * Map the linear network buffer into PCI space and
2150 * add it to the transmit ring.
2153 tdinfo->skb_dma[0] = pci_map_single(vptr->pdev, skb->data, pktlen, PCI_DMA_TODEVICE);
2154 td_ptr->tdesc0.len = len;
2155 td_ptr->td_buf[0].pa_low = cpu_to_le32(tdinfo->skb_dma[0]);
2156 td_ptr->td_buf[0].pa_high = 0;
2157 td_ptr->td_buf[0].size = len;
2158 tdinfo->nskb_dma = 1;
2160 td_ptr->tdesc1.cmd = TCPLS_NORMAL + (tdinfo->nskb_dma + 1) * 16;
2162 if (vptr->vlgrp && vlan_tx_tag_present(skb)) {
2163 td_ptr->tdesc1.vlan = cpu_to_le16(vlan_tx_tag_get(skb));
2164 td_ptr->tdesc1.TCR |= TCR0_VETAG;
2168 * Handle hardware checksum
2170 if ((vptr->flags & VELOCITY_FLAGS_TX_CSUM)
2171 && (skb->ip_summed == CHECKSUM_PARTIAL)) {
2172 const struct iphdr *ip = ip_hdr(skb);
2173 if (ip->protocol == IPPROTO_TCP)
2174 td_ptr->tdesc1.TCR |= TCR0_TCPCK;
2175 else if (ip->protocol == IPPROTO_UDP)
2176 td_ptr->tdesc1.TCR |= (TCR0_UDPCK);
2177 td_ptr->tdesc1.TCR |= TCR0_IPCK;
2181 int prev = index - 1;
2184 prev = vptr->options.numtx - 1;
2185 td_ptr->tdesc0.len |= OWNED_BY_NIC;
2186 vptr->tx.used[qnum]++;
2187 vptr->tx.curr[qnum] = (index + 1) % vptr->options.numtx;
2189 if (AVAIL_TD(vptr, qnum) < 1)
2190 netif_stop_queue(dev);
2192 td_ptr = &(vptr->tx.rings[qnum][prev]);
2193 td_ptr->td_buf[0].size |= TD_QUEUE;
2194 mac_tx_queue_wake(vptr->mac_regs, qnum);
2196 dev->trans_start = jiffies;
2197 spin_unlock_irqrestore(&vptr->lock, flags);
2199 return NETDEV_TX_OK;
2203 * velocity_intr - interrupt callback
2204 * @irq: interrupt number
2205 * @dev_instance: interrupting device
2207 * Called whenever an interrupt is generated by the velocity
2208 * adapter IRQ line. We may not be the source of the interrupt
2209 * and need to identify initially if we are, and if not exit as
2210 * efficiently as possible.
2213 static int velocity_intr(int irq, void *dev_instance)
2215 struct net_device *dev = dev_instance;
2216 struct velocity_info *vptr = netdev_priv(dev);
2221 spin_lock(&vptr->lock);
2222 isr_status = mac_read_isr(vptr->mac_regs);
2225 if (isr_status == 0) {
2226 spin_unlock(&vptr->lock);
2230 mac_disable_int(vptr->mac_regs);
2233 * Keep processing the ISR until we have completed
2234 * processing and the isr_status becomes zero
2237 while (isr_status != 0) {
2238 mac_write_isr(vptr->mac_regs, isr_status);
2239 if (isr_status & (~(ISR_PRXI | ISR_PPRXI | ISR_PTXI | ISR_PPTXI)))
2240 velocity_error(vptr, isr_status);
2241 if (isr_status & (ISR_PRXI | ISR_PPRXI))
2242 max_count += velocity_rx_srv(vptr, isr_status);
2243 if (isr_status & (ISR_PTXI | ISR_PPTXI))
2244 max_count += velocity_tx_srv(vptr, isr_status);
2245 isr_status = mac_read_isr(vptr->mac_regs);
2246 if (max_count > vptr->options.int_works)
2248 printk(KERN_WARNING "%s: excessive work at interrupt.\n",
2253 spin_unlock(&vptr->lock);
2254 mac_enable_int(vptr->mac_regs);
2261 * velocity_set_multi - filter list change callback
2262 * @dev: network device
2264 * Called by the network layer when the filter lists need to change
2265 * for a velocity adapter. Reload the CAMs with the new address
2269 static void velocity_set_multi(struct net_device *dev)
2271 struct velocity_info *vptr = netdev_priv(dev);
2272 struct mac_regs __iomem * regs = vptr->mac_regs;
2275 struct dev_mc_list *mclist;
2277 if (dev->flags & IFF_PROMISC) { /* Set promiscuous. */
2278 writel(0xffffffff, ®s->MARCAM[0]);
2279 writel(0xffffffff, ®s->MARCAM[4]);
2280 rx_mode = (RCR_AM | RCR_AB | RCR_PROM);
2281 } else if ((dev->mc_count > vptr->multicast_limit)
2282 || (dev->flags & IFF_ALLMULTI)) {
2283 writel(0xffffffff, ®s->MARCAM[0]);
2284 writel(0xffffffff, ®s->MARCAM[4]);
2285 rx_mode = (RCR_AM | RCR_AB);
2287 int offset = MCAM_SIZE - vptr->multicast_limit;
2288 mac_get_cam_mask(regs, vptr->mCAMmask);
2290 for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count; i++, mclist = mclist->next) {
2291 mac_set_cam(regs, i + offset, mclist->dmi_addr);
2292 vptr->mCAMmask[(offset + i) / 8] |= 1 << ((offset + i) & 7);
2295 mac_set_cam_mask(regs, vptr->mCAMmask);
2296 rx_mode = (RCR_AM | RCR_AB);
2298 if (dev->mtu > 1500)
2301 BYTE_REG_BITS_ON(rx_mode, ®s->RCR);
2306 * velocity_get_status - statistics callback
2307 * @dev: network device
2309 * Callback from the network layer to allow driver statistics
2310 * to be resynchronized with hardware collected state. In the
2311 * case of the velocity we need to pull the MIB counters from
2312 * the hardware into the counters before letting the network
2313 * layer display them.
2316 static struct net_device_stats *velocity_get_stats(struct net_device *dev)
2318 struct velocity_info *vptr = netdev_priv(dev);
2320 /* If the hardware is down, don't touch MII */
2321 if(!netif_running(dev))
2322 return &vptr->stats;
2324 spin_lock_irq(&vptr->lock);
2325 velocity_update_hw_mibs(vptr);
2326 spin_unlock_irq(&vptr->lock);
2328 vptr->stats.rx_packets = vptr->mib_counter[HW_MIB_ifRxAllPkts];
2329 vptr->stats.rx_errors = vptr->mib_counter[HW_MIB_ifRxErrorPkts];
2330 vptr->stats.rx_length_errors = vptr->mib_counter[HW_MIB_ifInRangeLengthErrors];
2332 // unsigned long rx_dropped; /* no space in linux buffers */
2333 vptr->stats.collisions = vptr->mib_counter[HW_MIB_ifTxEtherCollisions];
2334 /* detailed rx_errors: */
2335 // unsigned long rx_length_errors;
2336 // unsigned long rx_over_errors; /* receiver ring buff overflow */
2337 vptr->stats.rx_crc_errors = vptr->mib_counter[HW_MIB_ifRxPktCRCE];
2338 // unsigned long rx_frame_errors; /* recv'd frame alignment error */
2339 // unsigned long rx_fifo_errors; /* recv'r fifo overrun */
2340 // unsigned long rx_missed_errors; /* receiver missed packet */
2342 /* detailed tx_errors */
2343 // unsigned long tx_fifo_errors;
2345 return &vptr->stats;
2350 * velocity_ioctl - ioctl entry point
2351 * @dev: network device
2352 * @rq: interface request ioctl
2353 * @cmd: command code
2355 * Called when the user issues an ioctl request to the network
2356 * device in question. The velocity interface supports MII.
2359 static int velocity_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
2361 struct velocity_info *vptr = netdev_priv(dev);
2364 /* If we are asked for information and the device is power
2365 saving then we need to bring the device back up to talk to it */
2367 if (!netif_running(dev))
2368 pci_set_power_state(vptr->pdev, PCI_D0);
2371 case SIOCGMIIPHY: /* Get address of MII PHY in use. */
2372 case SIOCGMIIREG: /* Read MII PHY register. */
2373 case SIOCSMIIREG: /* Write to MII PHY register. */
2374 ret = velocity_mii_ioctl(dev, rq, cmd);
2380 if (!netif_running(dev))
2381 pci_set_power_state(vptr->pdev, PCI_D3hot);
2388 * Definition for our device driver. The PCI layer interface
2389 * uses this to handle all our card discover and plugging
2392 static struct pci_driver velocity_driver = {
2393 .name = VELOCITY_NAME,
2394 .id_table = velocity_id_table,
2395 .probe = velocity_found1,
2396 .remove = __devexit_p(velocity_remove1),
2398 .suspend = velocity_suspend,
2399 .resume = velocity_resume,
2404 * velocity_init_module - load time function
2406 * Called when the velocity module is loaded. The PCI driver
2407 * is registered with the PCI layer, and in turn will call
2408 * the probe functions for each velocity adapter installed
2412 static int __init velocity_init_module(void)
2416 velocity_register_notifier();
2417 ret = pci_register_driver(&velocity_driver);
2419 velocity_unregister_notifier();
2424 * velocity_cleanup - module unload
2426 * When the velocity hardware is unloaded this function is called.
2427 * It will clean up the notifiers and the unregister the PCI
2428 * driver interface for this hardware. This in turn cleans up
2429 * all discovered interfaces before returning from the function
2432 static void __exit velocity_cleanup_module(void)
2434 velocity_unregister_notifier();
2435 pci_unregister_driver(&velocity_driver);
2438 module_init(velocity_init_module);
2439 module_exit(velocity_cleanup_module);
2443 * MII access , media link mode setting functions
2448 * mii_init - set up MII
2449 * @vptr: velocity adapter
2450 * @mii_status: links tatus
2452 * Set up the PHY for the current link state.
2455 static void mii_init(struct velocity_info *vptr, u32 mii_status)
2459 switch (PHYID_GET_PHY_ID(vptr->phy_id)) {
2460 case PHYID_CICADA_CS8201:
2462 * Reset to hardware default
2464 MII_REG_BITS_OFF((ANAR_ASMDIR | ANAR_PAUSE), MII_REG_ANAR, vptr->mac_regs);
2466 * Turn on ECHODIS bit in NWay-forced full mode and turn it
2467 * off it in NWay-forced half mode for NWay-forced v.s.
2468 * legacy-forced issue.
2470 if (vptr->mii_status & VELOCITY_DUPLEX_FULL)
2471 MII_REG_BITS_ON(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs);
2473 MII_REG_BITS_OFF(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs);
2475 * Turn on Link/Activity LED enable bit for CIS8201
2477 MII_REG_BITS_ON(PLED_LALBE, MII_REG_PLED, vptr->mac_regs);
2479 case PHYID_VT3216_32BIT:
2480 case PHYID_VT3216_64BIT:
2482 * Reset to hardware default
2484 MII_REG_BITS_ON((ANAR_ASMDIR | ANAR_PAUSE), MII_REG_ANAR, vptr->mac_regs);
2486 * Turn on ECHODIS bit in NWay-forced full mode and turn it
2487 * off it in NWay-forced half mode for NWay-forced v.s.
2488 * legacy-forced issue
2490 if (vptr->mii_status & VELOCITY_DUPLEX_FULL)
2491 MII_REG_BITS_ON(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs);
2493 MII_REG_BITS_OFF(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs);
2496 case PHYID_MARVELL_1000:
2497 case PHYID_MARVELL_1000S:
2499 * Assert CRS on Transmit
2501 MII_REG_BITS_ON(PSCR_ACRSTX, MII_REG_PSCR, vptr->mac_regs);
2503 * Reset to hardware default
2505 MII_REG_BITS_ON((ANAR_ASMDIR | ANAR_PAUSE), MII_REG_ANAR, vptr->mac_regs);
2510 velocity_mii_read(vptr->mac_regs, MII_REG_BMCR, &BMCR);
2511 if (BMCR & BMCR_ISO) {
2513 velocity_mii_write(vptr->mac_regs, MII_REG_BMCR, BMCR);
2518 * safe_disable_mii_autopoll - autopoll off
2519 * @regs: velocity registers
2521 * Turn off the autopoll and wait for it to disable on the chip
2524 static void safe_disable_mii_autopoll(struct mac_regs __iomem * regs)
2528 /* turn off MAUTO */
2529 writeb(0, ®s->MIICR);
2530 for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
2532 if (BYTE_REG_BITS_IS_ON(MIISR_MIDLE, ®s->MIISR))
2538 * enable_mii_autopoll - turn on autopolling
2539 * @regs: velocity registers
2541 * Enable the MII link status autopoll feature on the Velocity
2542 * hardware. Wait for it to enable.
2545 static void enable_mii_autopoll(struct mac_regs __iomem * regs)
2549 writeb(0, &(regs->MIICR));
2550 writeb(MIIADR_SWMPL, ®s->MIIADR);
2552 for (ii = 0; ii < W_MAX_TIMEOUT; ii++) {
2554 if (BYTE_REG_BITS_IS_ON(MIISR_MIDLE, ®s->MIISR))
2558 writeb(MIICR_MAUTO, ®s->MIICR);
2560 for (ii = 0; ii < W_MAX_TIMEOUT; ii++) {
2562 if (!BYTE_REG_BITS_IS_ON(MIISR_MIDLE, ®s->MIISR))
2569 * velocity_mii_read - read MII data
2570 * @regs: velocity registers
2571 * @index: MII register index
2572 * @data: buffer for received data
2574 * Perform a single read of an MII 16bit register. Returns zero
2575 * on success or -ETIMEDOUT if the PHY did not respond.
2578 static int velocity_mii_read(struct mac_regs __iomem *regs, u8 index, u16 *data)
2583 * Disable MIICR_MAUTO, so that mii addr can be set normally
2585 safe_disable_mii_autopoll(regs);
2587 writeb(index, ®s->MIIADR);
2589 BYTE_REG_BITS_ON(MIICR_RCMD, ®s->MIICR);
2591 for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
2592 if (!(readb(®s->MIICR) & MIICR_RCMD))
2596 *data = readw(®s->MIIDATA);
2598 enable_mii_autopoll(regs);
2599 if (ww == W_MAX_TIMEOUT)
2605 * velocity_mii_write - write MII data
2606 * @regs: velocity registers
2607 * @index: MII register index
2608 * @data: 16bit data for the MII register
2610 * Perform a single write to an MII 16bit register. Returns zero
2611 * on success or -ETIMEDOUT if the PHY did not respond.
2614 static int velocity_mii_write(struct mac_regs __iomem *regs, u8 mii_addr, u16 data)
2619 * Disable MIICR_MAUTO, so that mii addr can be set normally
2621 safe_disable_mii_autopoll(regs);
2623 /* MII reg offset */
2624 writeb(mii_addr, ®s->MIIADR);
2626 writew(data, ®s->MIIDATA);
2628 /* turn on MIICR_WCMD */
2629 BYTE_REG_BITS_ON(MIICR_WCMD, ®s->MIICR);
2631 /* W_MAX_TIMEOUT is the timeout period */
2632 for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
2634 if (!(readb(®s->MIICR) & MIICR_WCMD))
2637 enable_mii_autopoll(regs);
2639 if (ww == W_MAX_TIMEOUT)
2645 * velocity_get_opt_media_mode - get media selection
2646 * @vptr: velocity adapter
2648 * Get the media mode stored in EEPROM or module options and load
2649 * mii_status accordingly. The requested link state information
2653 static u32 velocity_get_opt_media_mode(struct velocity_info *vptr)
2657 switch (vptr->options.spd_dpx) {
2659 status = VELOCITY_AUTONEG_ENABLE;
2661 case SPD_DPX_100_FULL:
2662 status = VELOCITY_SPEED_100 | VELOCITY_DUPLEX_FULL;
2664 case SPD_DPX_10_FULL:
2665 status = VELOCITY_SPEED_10 | VELOCITY_DUPLEX_FULL;
2667 case SPD_DPX_100_HALF:
2668 status = VELOCITY_SPEED_100;
2670 case SPD_DPX_10_HALF:
2671 status = VELOCITY_SPEED_10;
2674 vptr->mii_status = status;
2679 * mii_set_auto_on - autonegotiate on
2682 * Enable autonegotation on this interface
2685 static void mii_set_auto_on(struct velocity_info *vptr)
2687 if (MII_REG_BITS_IS_ON(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs))
2688 MII_REG_BITS_ON(BMCR_REAUTO, MII_REG_BMCR, vptr->mac_regs);
2690 MII_REG_BITS_ON(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs);
2695 static void mii_set_auto_off(struct velocity_info * vptr)
2697 MII_REG_BITS_OFF(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs);
2702 * set_mii_flow_control - flow control setup
2703 * @vptr: velocity interface
2705 * Set up the flow control on this interface according to
2706 * the supplied user/eeprom options.
2709 static void set_mii_flow_control(struct velocity_info *vptr)
2711 /*Enable or Disable PAUSE in ANAR */
2712 switch (vptr->options.flow_cntl) {
2714 MII_REG_BITS_OFF(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs);
2715 MII_REG_BITS_ON(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs);
2719 MII_REG_BITS_ON(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs);
2720 MII_REG_BITS_ON(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs);
2723 case FLOW_CNTL_TX_RX:
2724 MII_REG_BITS_ON(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs);
2725 MII_REG_BITS_ON(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs);
2728 case FLOW_CNTL_DISABLE:
2729 MII_REG_BITS_OFF(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs);
2730 MII_REG_BITS_OFF(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs);
2738 * velocity_set_media_mode - set media mode
2739 * @mii_status: old MII link state
2741 * Check the media link state and configure the flow control
2742 * PHY and also velocity hardware setup accordingly. In particular
2743 * we need to set up CD polling and frame bursting.
2746 static int velocity_set_media_mode(struct velocity_info *vptr, u32 mii_status)
2749 struct mac_regs __iomem * regs = vptr->mac_regs;
2751 vptr->mii_status = mii_check_media_mode(vptr->mac_regs);
2752 curr_status = vptr->mii_status & (~VELOCITY_LINK_FAIL);
2754 /* Set mii link status */
2755 set_mii_flow_control(vptr);
2758 Check if new status is consisent with current status
2759 if (((mii_status & curr_status) & VELOCITY_AUTONEG_ENABLE)
2760 || (mii_status==curr_status)) {
2761 vptr->mii_status=mii_check_media_mode(vptr->mac_regs);
2762 vptr->mii_status=check_connection_type(vptr->mac_regs);
2763 VELOCITY_PRT(MSG_LEVEL_INFO, "Velocity link no change\n");
2768 if (PHYID_GET_PHY_ID(vptr->phy_id) == PHYID_CICADA_CS8201) {
2769 MII_REG_BITS_ON(AUXCR_MDPPS, MII_REG_AUXCR, vptr->mac_regs);
2773 * If connection type is AUTO
2775 if (mii_status & VELOCITY_AUTONEG_ENABLE) {
2776 VELOCITY_PRT(MSG_LEVEL_INFO, "Velocity is AUTO mode\n");
2777 /* clear force MAC mode bit */
2778 BYTE_REG_BITS_OFF(CHIPGCR_FCMODE, ®s->CHIPGCR);
2779 /* set duplex mode of MAC according to duplex mode of MII */
2780 MII_REG_BITS_ON(ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10, MII_REG_ANAR, vptr->mac_regs);
2781 MII_REG_BITS_ON(G1000CR_1000FD | G1000CR_1000, MII_REG_G1000CR, vptr->mac_regs);
2782 MII_REG_BITS_ON(BMCR_SPEED1G, MII_REG_BMCR, vptr->mac_regs);
2784 /* enable AUTO-NEGO mode */
2785 mii_set_auto_on(vptr);
2791 * 1. if it's 3119, disable frame bursting in halfduplex mode
2792 * and enable it in fullduplex mode
2793 * 2. set correct MII/GMII and half/full duplex mode in CHIPGCR
2794 * 3. only enable CD heart beat counter in 10HD mode
2797 /* set force MAC mode bit */
2798 BYTE_REG_BITS_ON(CHIPGCR_FCMODE, ®s->CHIPGCR);
2800 CHIPGCR = readb(®s->CHIPGCR);
2801 CHIPGCR &= ~CHIPGCR_FCGMII;
2803 if (mii_status & VELOCITY_DUPLEX_FULL) {
2804 CHIPGCR |= CHIPGCR_FCFDX;
2805 writeb(CHIPGCR, ®s->CHIPGCR);
2806 VELOCITY_PRT(MSG_LEVEL_INFO, "set Velocity to forced full mode\n");
2807 if (vptr->rev_id < REV_ID_VT3216_A0)
2808 BYTE_REG_BITS_OFF(TCR_TB2BDIS, ®s->TCR);
2810 CHIPGCR &= ~CHIPGCR_FCFDX;
2811 VELOCITY_PRT(MSG_LEVEL_INFO, "set Velocity to forced half mode\n");
2812 writeb(CHIPGCR, ®s->CHIPGCR);
2813 if (vptr->rev_id < REV_ID_VT3216_A0)
2814 BYTE_REG_BITS_ON(TCR_TB2BDIS, ®s->TCR);
2817 MII_REG_BITS_OFF(G1000CR_1000FD | G1000CR_1000, MII_REG_G1000CR, vptr->mac_regs);
2819 if (!(mii_status & VELOCITY_DUPLEX_FULL) && (mii_status & VELOCITY_SPEED_10)) {
2820 BYTE_REG_BITS_OFF(TESTCFG_HBDIS, ®s->TESTCFG);
2822 BYTE_REG_BITS_ON(TESTCFG_HBDIS, ®s->TESTCFG);
2824 /* MII_REG_BITS_OFF(BMCR_SPEED1G, MII_REG_BMCR, vptr->mac_regs); */
2825 velocity_mii_read(vptr->mac_regs, MII_REG_ANAR, &ANAR);
2826 ANAR &= (~(ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10));
2827 if (mii_status & VELOCITY_SPEED_100) {
2828 if (mii_status & VELOCITY_DUPLEX_FULL)
2833 if (mii_status & VELOCITY_DUPLEX_FULL)
2838 velocity_mii_write(vptr->mac_regs, MII_REG_ANAR, ANAR);
2839 /* enable AUTO-NEGO mode */
2840 mii_set_auto_on(vptr);
2841 /* MII_REG_BITS_ON(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs); */
2843 /* vptr->mii_status=mii_check_media_mode(vptr->mac_regs); */
2844 /* vptr->mii_status=check_connection_type(vptr->mac_regs); */
2845 return VELOCITY_LINK_CHANGE;
2849 * mii_check_media_mode - check media state
2850 * @regs: velocity registers
2852 * Check the current MII status and determine the link status
2856 static u32 mii_check_media_mode(struct mac_regs __iomem * regs)
2861 if (!MII_REG_BITS_IS_ON(BMSR_LNK, MII_REG_BMSR, regs))
2862 status |= VELOCITY_LINK_FAIL;
2864 if (MII_REG_BITS_IS_ON(G1000CR_1000FD, MII_REG_G1000CR, regs))
2865 status |= VELOCITY_SPEED_1000 | VELOCITY_DUPLEX_FULL;
2866 else if (MII_REG_BITS_IS_ON(G1000CR_1000, MII_REG_G1000CR, regs))
2867 status |= (VELOCITY_SPEED_1000);
2869 velocity_mii_read(regs, MII_REG_ANAR, &ANAR);
2870 if (ANAR & ANAR_TXFD)
2871 status |= (VELOCITY_SPEED_100 | VELOCITY_DUPLEX_FULL);
2872 else if (ANAR & ANAR_TX)
2873 status |= VELOCITY_SPEED_100;
2874 else if (ANAR & ANAR_10FD)
2875 status |= (VELOCITY_SPEED_10 | VELOCITY_DUPLEX_FULL);
2877 status |= (VELOCITY_SPEED_10);
2880 if (MII_REG_BITS_IS_ON(BMCR_AUTO, MII_REG_BMCR, regs)) {
2881 velocity_mii_read(regs, MII_REG_ANAR, &ANAR);
2882 if ((ANAR & (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10))
2883 == (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10)) {
2884 if (MII_REG_BITS_IS_ON(G1000CR_1000 | G1000CR_1000FD, MII_REG_G1000CR, regs))
2885 status |= VELOCITY_AUTONEG_ENABLE;
2892 static u32 check_connection_type(struct mac_regs __iomem * regs)
2897 PHYSR0 = readb(®s->PHYSR0);
2900 if (!(PHYSR0 & PHYSR0_LINKGD))
2901 status|=VELOCITY_LINK_FAIL;
2904 if (PHYSR0 & PHYSR0_FDPX)
2905 status |= VELOCITY_DUPLEX_FULL;
2907 if (PHYSR0 & PHYSR0_SPDG)
2908 status |= VELOCITY_SPEED_1000;
2909 else if (PHYSR0 & PHYSR0_SPD10)
2910 status |= VELOCITY_SPEED_10;
2912 status |= VELOCITY_SPEED_100;
2914 if (MII_REG_BITS_IS_ON(BMCR_AUTO, MII_REG_BMCR, regs)) {
2915 velocity_mii_read(regs, MII_REG_ANAR, &ANAR);
2916 if ((ANAR & (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10))
2917 == (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10)) {
2918 if (MII_REG_BITS_IS_ON(G1000CR_1000 | G1000CR_1000FD, MII_REG_G1000CR, regs))
2919 status |= VELOCITY_AUTONEG_ENABLE;
2927 * enable_flow_control_ability - flow control
2928 * @vptr: veloity to configure
2930 * Set up flow control according to the flow control options
2931 * determined by the eeprom/configuration.
2934 static void enable_flow_control_ability(struct velocity_info *vptr)
2937 struct mac_regs __iomem * regs = vptr->mac_regs;
2939 switch (vptr->options.flow_cntl) {
2941 case FLOW_CNTL_DEFAULT:
2942 if (BYTE_REG_BITS_IS_ON(PHYSR0_RXFLC, ®s->PHYSR0))
2943 writel(CR0_FDXRFCEN, ®s->CR0Set);
2945 writel(CR0_FDXRFCEN, ®s->CR0Clr);
2947 if (BYTE_REG_BITS_IS_ON(PHYSR0_TXFLC, ®s->PHYSR0))
2948 writel(CR0_FDXTFCEN, ®s->CR0Set);
2950 writel(CR0_FDXTFCEN, ®s->CR0Clr);
2954 writel(CR0_FDXTFCEN, ®s->CR0Set);
2955 writel(CR0_FDXRFCEN, ®s->CR0Clr);
2959 writel(CR0_FDXRFCEN, ®s->CR0Set);
2960 writel(CR0_FDXTFCEN, ®s->CR0Clr);
2963 case FLOW_CNTL_TX_RX:
2964 writel(CR0_FDXTFCEN, ®s->CR0Set);
2965 writel(CR0_FDXRFCEN, ®s->CR0Set);
2968 case FLOW_CNTL_DISABLE:
2969 writel(CR0_FDXRFCEN, ®s->CR0Clr);
2970 writel(CR0_FDXTFCEN, ®s->CR0Clr);
2981 * velocity_ethtool_up - pre hook for ethtool
2982 * @dev: network device
2984 * Called before an ethtool operation. We need to make sure the
2985 * chip is out of D3 state before we poke at it.
2988 static int velocity_ethtool_up(struct net_device *dev)
2990 struct velocity_info *vptr = netdev_priv(dev);
2991 if (!netif_running(dev))
2992 pci_set_power_state(vptr->pdev, PCI_D0);
2997 * velocity_ethtool_down - post hook for ethtool
2998 * @dev: network device
3000 * Called after an ethtool operation. Restore the chip back to D3
3001 * state if it isn't running.
3004 static void velocity_ethtool_down(struct net_device *dev)
3006 struct velocity_info *vptr = netdev_priv(dev);
3007 if (!netif_running(dev))
3008 pci_set_power_state(vptr->pdev, PCI_D3hot);
3011 static int velocity_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
3013 struct velocity_info *vptr = netdev_priv(dev);
3014 struct mac_regs __iomem * regs = vptr->mac_regs;
3016 status = check_connection_type(vptr->mac_regs);
3018 cmd->supported = SUPPORTED_TP |
3020 SUPPORTED_10baseT_Half |
3021 SUPPORTED_10baseT_Full |
3022 SUPPORTED_100baseT_Half |
3023 SUPPORTED_100baseT_Full |
3024 SUPPORTED_1000baseT_Half |
3025 SUPPORTED_1000baseT_Full;
3026 if (status & VELOCITY_SPEED_1000)
3027 cmd->speed = SPEED_1000;
3028 else if (status & VELOCITY_SPEED_100)
3029 cmd->speed = SPEED_100;
3031 cmd->speed = SPEED_10;
3032 cmd->autoneg = (status & VELOCITY_AUTONEG_ENABLE) ? AUTONEG_ENABLE : AUTONEG_DISABLE;
3033 cmd->port = PORT_TP;
3034 cmd->transceiver = XCVR_INTERNAL;
3035 cmd->phy_address = readb(®s->MIIADR) & 0x1F;
3037 if (status & VELOCITY_DUPLEX_FULL)
3038 cmd->duplex = DUPLEX_FULL;
3040 cmd->duplex = DUPLEX_HALF;
3045 static int velocity_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
3047 struct velocity_info *vptr = netdev_priv(dev);
3052 curr_status = check_connection_type(vptr->mac_regs);
3053 curr_status &= (~VELOCITY_LINK_FAIL);
3055 new_status |= ((cmd->autoneg) ? VELOCITY_AUTONEG_ENABLE : 0);
3056 new_status |= ((cmd->speed == SPEED_100) ? VELOCITY_SPEED_100 : 0);
3057 new_status |= ((cmd->speed == SPEED_10) ? VELOCITY_SPEED_10 : 0);
3058 new_status |= ((cmd->duplex == DUPLEX_FULL) ? VELOCITY_DUPLEX_FULL : 0);
3060 if ((new_status & VELOCITY_AUTONEG_ENABLE) && (new_status != (curr_status | VELOCITY_AUTONEG_ENABLE)))
3063 velocity_set_media_mode(vptr, new_status);
3068 static u32 velocity_get_link(struct net_device *dev)
3070 struct velocity_info *vptr = netdev_priv(dev);
3071 struct mac_regs __iomem * regs = vptr->mac_regs;
3072 return BYTE_REG_BITS_IS_ON(PHYSR0_LINKGD, ®s->PHYSR0) ? 1 : 0;
3075 static void velocity_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
3077 struct velocity_info *vptr = netdev_priv(dev);
3078 strcpy(info->driver, VELOCITY_NAME);
3079 strcpy(info->version, VELOCITY_VERSION);
3080 strcpy(info->bus_info, pci_name(vptr->pdev));
3083 static void velocity_ethtool_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
3085 struct velocity_info *vptr = netdev_priv(dev);
3086 wol->supported = WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_ARP;
3087 wol->wolopts |= WAKE_MAGIC;
3089 if (vptr->wol_opts & VELOCITY_WOL_PHY)
3090 wol.wolopts|=WAKE_PHY;
3092 if (vptr->wol_opts & VELOCITY_WOL_UCAST)
3093 wol->wolopts |= WAKE_UCAST;
3094 if (vptr->wol_opts & VELOCITY_WOL_ARP)
3095 wol->wolopts |= WAKE_ARP;
3096 memcpy(&wol->sopass, vptr->wol_passwd, 6);
3099 static int velocity_ethtool_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
3101 struct velocity_info *vptr = netdev_priv(dev);
3103 if (!(wol->wolopts & (WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_ARP)))
3105 vptr->wol_opts = VELOCITY_WOL_MAGIC;
3108 if (wol.wolopts & WAKE_PHY) {
3109 vptr->wol_opts|=VELOCITY_WOL_PHY;
3110 vptr->flags |=VELOCITY_FLAGS_WOL_ENABLED;
3114 if (wol->wolopts & WAKE_MAGIC) {
3115 vptr->wol_opts |= VELOCITY_WOL_MAGIC;
3116 vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED;
3118 if (wol->wolopts & WAKE_UCAST) {
3119 vptr->wol_opts |= VELOCITY_WOL_UCAST;
3120 vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED;
3122 if (wol->wolopts & WAKE_ARP) {
3123 vptr->wol_opts |= VELOCITY_WOL_ARP;
3124 vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED;
3126 memcpy(vptr->wol_passwd, wol->sopass, 6);
3130 static u32 velocity_get_msglevel(struct net_device *dev)
3135 static void velocity_set_msglevel(struct net_device *dev, u32 value)
3140 static const struct ethtool_ops velocity_ethtool_ops = {
3141 .get_settings = velocity_get_settings,
3142 .set_settings = velocity_set_settings,
3143 .get_drvinfo = velocity_get_drvinfo,
3144 .get_wol = velocity_ethtool_get_wol,
3145 .set_wol = velocity_ethtool_set_wol,
3146 .get_msglevel = velocity_get_msglevel,
3147 .set_msglevel = velocity_set_msglevel,
3148 .get_link = velocity_get_link,
3149 .begin = velocity_ethtool_up,
3150 .complete = velocity_ethtool_down
3154 * velocity_mii_ioctl - MII ioctl handler
3155 * @dev: network device
3156 * @ifr: the ifreq block for the ioctl
3159 * Process MII requests made via ioctl from the network layer. These
3160 * are used by tools like kudzu to interrogate the link state of the
3164 static int velocity_mii_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
3166 struct velocity_info *vptr = netdev_priv(dev);
3167 struct mac_regs __iomem * regs = vptr->mac_regs;
3168 unsigned long flags;
3169 struct mii_ioctl_data *miidata = if_mii(ifr);
3174 miidata->phy_id = readb(®s->MIIADR) & 0x1f;
3177 if (!capable(CAP_NET_ADMIN))
3179 if(velocity_mii_read(vptr->mac_regs, miidata->reg_num & 0x1f, &(miidata->val_out)) < 0)
3183 if (!capable(CAP_NET_ADMIN))
3185 spin_lock_irqsave(&vptr->lock, flags);
3186 err = velocity_mii_write(vptr->mac_regs, miidata->reg_num & 0x1f, miidata->val_in);
3187 spin_unlock_irqrestore(&vptr->lock, flags);
3188 check_connection_type(vptr->mac_regs);
3201 * velocity_save_context - save registers
3203 * @context: buffer for stored context
3205 * Retrieve the current configuration from the velocity hardware
3206 * and stash it in the context structure, for use by the context
3207 * restore functions. This allows us to save things we need across
3211 static void velocity_save_context(struct velocity_info *vptr, struct velocity_context * context)
3213 struct mac_regs __iomem * regs = vptr->mac_regs;
3215 u8 __iomem *ptr = (u8 __iomem *)regs;
3217 for (i = MAC_REG_PAR; i < MAC_REG_CR0_CLR; i += 4)
3218 *((u32 *) (context->mac_reg + i)) = readl(ptr + i);
3220 for (i = MAC_REG_MAR; i < MAC_REG_TDCSR_CLR; i += 4)
3221 *((u32 *) (context->mac_reg + i)) = readl(ptr + i);
3223 for (i = MAC_REG_RDBASE_LO; i < MAC_REG_FIFO_TEST0; i += 4)
3224 *((u32 *) (context->mac_reg + i)) = readl(ptr + i);
3229 * velocity_restore_context - restore registers
3231 * @context: buffer for stored context
3233 * Reload the register configuration from the velocity context
3234 * created by velocity_save_context.
3237 static void velocity_restore_context(struct velocity_info *vptr, struct velocity_context *context)
3239 struct mac_regs __iomem * regs = vptr->mac_regs;
3241 u8 __iomem *ptr = (u8 __iomem *)regs;
3243 for (i = MAC_REG_PAR; i < MAC_REG_CR0_SET; i += 4) {
3244 writel(*((u32 *) (context->mac_reg + i)), ptr + i);
3248 for (i = MAC_REG_CR1_SET; i < MAC_REG_CR0_CLR; i++) {
3250 writeb(~(*((u8 *) (context->mac_reg + i))), ptr + i + 4);
3252 writeb(*((u8 *) (context->mac_reg + i)), ptr + i);
3255 for (i = MAC_REG_MAR; i < MAC_REG_IMR; i += 4) {
3256 writel(*((u32 *) (context->mac_reg + i)), ptr + i);
3259 for (i = MAC_REG_RDBASE_LO; i < MAC_REG_FIFO_TEST0; i += 4) {
3260 writel(*((u32 *) (context->mac_reg + i)), ptr + i);
3263 for (i = MAC_REG_TDCSR_SET; i <= MAC_REG_RDCSR_SET; i++) {
3264 writeb(*((u8 *) (context->mac_reg + i)), ptr + i);
3270 * wol_calc_crc - WOL CRC
3271 * @pattern: data pattern
3272 * @mask_pattern: mask
3274 * Compute the wake on lan crc hashes for the packet header
3275 * we are interested in.
3278 static u16 wol_calc_crc(int size, u8 * pattern, u8 *mask_pattern)
3284 for (i = 0; i < size; i++) {
3285 mask = mask_pattern[i];
3287 /* Skip this loop if the mask equals to zero */
3291 for (j = 0; j < 8; j++) {
3292 if ((mask & 0x01) == 0) {
3297 crc = crc_ccitt(crc, &(pattern[i * 8 + j]), 1);
3300 /* Finally, invert the result once to get the correct data */
3302 return bitrev32(crc) >> 16;
3306 * velocity_set_wol - set up for wake on lan
3307 * @vptr: velocity to set WOL status on
3309 * Set a card up for wake on lan either by unicast or by
3312 * FIXME: check static buffer is safe here
3315 static int velocity_set_wol(struct velocity_info *vptr)
3317 struct mac_regs __iomem * regs = vptr->mac_regs;
3321 static u32 mask_pattern[2][4] = {
3322 {0x00203000, 0x000003C0, 0x00000000, 0x0000000}, /* ARP */
3323 {0xfffff000, 0xffffffff, 0xffffffff, 0x000ffff} /* Magic Packet */
3326 writew(0xFFFF, ®s->WOLCRClr);
3327 writeb(WOLCFG_SAB | WOLCFG_SAM, ®s->WOLCFGSet);
3328 writew(WOLCR_MAGIC_EN, ®s->WOLCRSet);
3331 if (vptr->wol_opts & VELOCITY_WOL_PHY)
3332 writew((WOLCR_LINKON_EN|WOLCR_LINKOFF_EN), ®s->WOLCRSet);
3335 if (vptr->wol_opts & VELOCITY_WOL_UCAST) {
3336 writew(WOLCR_UNICAST_EN, ®s->WOLCRSet);
3339 if (vptr->wol_opts & VELOCITY_WOL_ARP) {
3340 struct arp_packet *arp = (struct arp_packet *) buf;
3342 memset(buf, 0, sizeof(struct arp_packet) + 7);
3344 for (i = 0; i < 4; i++)
3345 writel(mask_pattern[0][i], ®s->ByteMask[0][i]);
3347 arp->type = htons(ETH_P_ARP);
3348 arp->ar_op = htons(1);
3350 memcpy(arp->ar_tip, vptr->ip_addr, 4);
3352 crc = wol_calc_crc((sizeof(struct arp_packet) + 7) / 8, buf,
3353 (u8 *) & mask_pattern[0][0]);
3355 writew(crc, ®s->PatternCRC[0]);
3356 writew(WOLCR_ARP_EN, ®s->WOLCRSet);
3359 BYTE_REG_BITS_ON(PWCFG_WOLTYPE, ®s->PWCFGSet);
3360 BYTE_REG_BITS_ON(PWCFG_LEGACY_WOLEN, ®s->PWCFGSet);
3362 writew(0x0FFF, ®s->WOLSRClr);
3364 if (vptr->mii_status & VELOCITY_AUTONEG_ENABLE) {
3365 if (PHYID_GET_PHY_ID(vptr->phy_id) == PHYID_CICADA_CS8201)
3366 MII_REG_BITS_ON(AUXCR_MDPPS, MII_REG_AUXCR, vptr->mac_regs);
3368 MII_REG_BITS_OFF(G1000CR_1000FD | G1000CR_1000, MII_REG_G1000CR, vptr->mac_regs);
3371 if (vptr->mii_status & VELOCITY_SPEED_1000)
3372 MII_REG_BITS_ON(BMCR_REAUTO, MII_REG_BMCR, vptr->mac_regs);
3374 BYTE_REG_BITS_ON(CHIPGCR_FCMODE, ®s->CHIPGCR);
3378 GCR = readb(®s->CHIPGCR);
3379 GCR = (GCR & ~CHIPGCR_FCGMII) | CHIPGCR_FCFDX;
3380 writeb(GCR, ®s->CHIPGCR);
3383 BYTE_REG_BITS_OFF(ISR_PWEI, ®s->ISR);
3384 /* Turn on SWPTAG just before entering power mode */
3385 BYTE_REG_BITS_ON(STICKHW_SWPTAG, ®s->STICKHW);
3386 /* Go to bed ..... */
3387 BYTE_REG_BITS_ON((STICKHW_DS1 | STICKHW_DS0), ®s->STICKHW);
3392 static int velocity_suspend(struct pci_dev *pdev, pm_message_t state)
3394 struct net_device *dev = pci_get_drvdata(pdev);
3395 struct velocity_info *vptr = netdev_priv(dev);
3396 unsigned long flags;
3398 if(!netif_running(vptr->dev))
3401 netif_device_detach(vptr->dev);
3403 spin_lock_irqsave(&vptr->lock, flags);
3404 pci_save_state(pdev);
3406 if (vptr->flags & VELOCITY_FLAGS_WOL_ENABLED) {
3407 velocity_get_ip(vptr);
3408 velocity_save_context(vptr, &vptr->context);
3409 velocity_shutdown(vptr);
3410 velocity_set_wol(vptr);
3411 pci_enable_wake(pdev, PCI_D3hot, 1);
3412 pci_set_power_state(pdev, PCI_D3hot);
3414 velocity_save_context(vptr, &vptr->context);
3415 velocity_shutdown(vptr);
3416 pci_disable_device(pdev);
3417 pci_set_power_state(pdev, pci_choose_state(pdev, state));
3420 pci_set_power_state(pdev, pci_choose_state(pdev, state));
3422 spin_unlock_irqrestore(&vptr->lock, flags);
3426 static int velocity_resume(struct pci_dev *pdev)
3428 struct net_device *dev = pci_get_drvdata(pdev);
3429 struct velocity_info *vptr = netdev_priv(dev);
3430 unsigned long flags;
3433 if(!netif_running(vptr->dev))
3436 pci_set_power_state(pdev, PCI_D0);
3437 pci_enable_wake(pdev, 0, 0);
3438 pci_restore_state(pdev);
3440 mac_wol_reset(vptr->mac_regs);
3442 spin_lock_irqsave(&vptr->lock, flags);
3443 velocity_restore_context(vptr, &vptr->context);
3444 velocity_init_registers(vptr, VELOCITY_INIT_WOL);
3445 mac_disable_int(vptr->mac_regs);
3447 velocity_tx_srv(vptr, 0);
3449 for (i = 0; i < vptr->tx.numq; i++) {
3450 if (vptr->tx.used[i]) {
3451 mac_tx_queue_wake(vptr->mac_regs, i);
3455 mac_enable_int(vptr->mac_regs);
3456 spin_unlock_irqrestore(&vptr->lock, flags);
3457 netif_device_attach(vptr->dev);
3464 static int velocity_netdev_event(struct notifier_block *nb, unsigned long notification, void *ptr)
3466 struct in_ifaddr *ifa = (struct in_ifaddr *) ptr;
3467 struct net_device *dev = ifa->ifa_dev->dev;
3468 struct velocity_info *vptr;
3469 unsigned long flags;
3471 if (dev_net(dev) != &init_net)
3474 spin_lock_irqsave(&velocity_dev_list_lock, flags);
3475 list_for_each_entry(vptr, &velocity_dev_list, list) {
3476 if (vptr->dev == dev) {
3477 velocity_get_ip(vptr);
3481 spin_unlock_irqrestore(&velocity_dev_list_lock, flags);