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 <linux/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;
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.
95 static void mac_get_cam_mask(struct mac_regs __iomem *regs, u8 *mask)
100 BYTE_REG_BITS_SET(CAMCR_PS_CAM_MASK, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR);
102 writeb(0, ®s->CAMADDR);
105 for (i = 0; i < 8; i++)
106 *mask++ = readb(&(regs->MARCAM[i]));
109 writeb(0, ®s->CAMADDR);
112 BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR);
117 * mac_set_cam_mask - Set a CAM mask
118 * @regs: register block for this velocity
119 * @mask: CAM mask to load
121 * Store a new mask into a CAM
123 static void mac_set_cam_mask(struct mac_regs __iomem *regs, u8 *mask)
126 /* Select CAM mask */
127 BYTE_REG_BITS_SET(CAMCR_PS_CAM_MASK, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR);
129 writeb(CAMADDR_CAMEN, ®s->CAMADDR);
131 for (i = 0; i < 8; i++)
132 writeb(*mask++, &(regs->MARCAM[i]));
135 writeb(0, ®s->CAMADDR);
138 BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR);
141 static void mac_set_vlan_cam_mask(struct mac_regs __iomem *regs, u8 *mask)
144 /* Select CAM mask */
145 BYTE_REG_BITS_SET(CAMCR_PS_CAM_MASK, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR);
147 writeb(CAMADDR_CAMEN | CAMADDR_VCAMSL, ®s->CAMADDR);
149 for (i = 0; i < 8; i++)
150 writeb(*mask++, &(regs->MARCAM[i]));
153 writeb(0, ®s->CAMADDR);
156 BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR);
160 * mac_set_cam - set CAM data
161 * @regs: register block of this velocity
163 * @addr: 2 or 6 bytes of CAM data
165 * Load an address or vlan tag into a CAM
167 static void mac_set_cam(struct mac_regs __iomem *regs, int idx, const u8 *addr)
171 /* Select CAM mask */
172 BYTE_REG_BITS_SET(CAMCR_PS_CAM_DATA, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR);
176 writeb(CAMADDR_CAMEN | idx, ®s->CAMADDR);
178 for (i = 0; i < 6; i++)
179 writeb(*addr++, &(regs->MARCAM[i]));
181 BYTE_REG_BITS_ON(CAMCR_CAMWR, ®s->CAMCR);
185 writeb(0, ®s->CAMADDR);
188 BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR);
191 static void mac_set_vlan_cam(struct mac_regs __iomem *regs, int idx,
195 /* Select CAM mask */
196 BYTE_REG_BITS_SET(CAMCR_PS_CAM_DATA, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR);
200 writeb(CAMADDR_CAMEN | CAMADDR_VCAMSL | idx, ®s->CAMADDR);
201 writew(*((u16 *) addr), ®s->MARCAM[0]);
203 BYTE_REG_BITS_ON(CAMCR_CAMWR, ®s->CAMCR);
207 writeb(0, ®s->CAMADDR);
210 BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR);
215 * mac_wol_reset - reset WOL after exiting low power
216 * @regs: register block of this velocity
218 * Called after we drop out of wake on lan mode in order to
219 * reset the Wake on lan features. This function doesn't restore
220 * the rest of the logic from the result of sleep/wakeup
222 static void mac_wol_reset(struct mac_regs __iomem *regs)
225 /* Turn off SWPTAG right after leaving power mode */
226 BYTE_REG_BITS_OFF(STICKHW_SWPTAG, ®s->STICKHW);
227 /* clear sticky bits */
228 BYTE_REG_BITS_OFF((STICKHW_DS1 | STICKHW_DS0), ®s->STICKHW);
230 BYTE_REG_BITS_OFF(CHIPGCR_FCGMII, ®s->CHIPGCR);
231 BYTE_REG_BITS_OFF(CHIPGCR_FCMODE, ®s->CHIPGCR);
232 /* disable force PME-enable */
233 writeb(WOLCFG_PMEOVR, ®s->WOLCFGClr);
234 /* disable power-event config bit */
235 writew(0xFFFF, ®s->WOLCRClr);
236 /* clear power status */
237 writew(0xFFFF, ®s->WOLSRClr);
240 static const struct ethtool_ops velocity_ethtool_ops;
243 Define module options
246 MODULE_AUTHOR("VIA Networking Technologies, Inc.");
247 MODULE_LICENSE("GPL");
248 MODULE_DESCRIPTION("VIA Networking Velocity Family Gigabit Ethernet Adapter Driver");
250 #define VELOCITY_PARAM(N, D) \
251 static int N[MAX_UNITS] = OPTION_DEFAULT;\
252 module_param_array(N, int, NULL, 0); \
253 MODULE_PARM_DESC(N, D);
255 #define RX_DESC_MIN 64
256 #define RX_DESC_MAX 255
257 #define RX_DESC_DEF 64
258 VELOCITY_PARAM(RxDescriptors, "Number of receive descriptors");
260 #define TX_DESC_MIN 16
261 #define TX_DESC_MAX 256
262 #define TX_DESC_DEF 64
263 VELOCITY_PARAM(TxDescriptors, "Number of transmit descriptors");
265 #define RX_THRESH_MIN 0
266 #define RX_THRESH_MAX 3
267 #define RX_THRESH_DEF 0
268 /* rx_thresh[] is used for controlling the receive fifo threshold.
269 0: indicate the rxfifo threshold is 128 bytes.
270 1: indicate the rxfifo threshold is 512 bytes.
271 2: indicate the rxfifo threshold is 1024 bytes.
272 3: indicate the rxfifo threshold is store & forward.
274 VELOCITY_PARAM(rx_thresh, "Receive fifo threshold");
276 #define DMA_LENGTH_MIN 0
277 #define DMA_LENGTH_MAX 7
278 #define DMA_LENGTH_DEF 0
280 /* DMA_length[] is used for controlling the DMA length
287 6: SF(flush till emply)
288 7: SF(flush till emply)
290 VELOCITY_PARAM(DMA_length, "DMA length");
292 #define IP_ALIG_DEF 0
293 /* IP_byte_align[] is used for IP header DWORD byte aligned
294 0: indicate the IP header won't be DWORD byte aligned.(Default) .
295 1: indicate the IP header will be DWORD byte aligned.
296 In some enviroment, the IP header should be DWORD byte aligned,
297 or the packet will be droped when we receive it. (eg: IPVS)
299 VELOCITY_PARAM(IP_byte_align, "Enable IP header dword aligned");
301 #define TX_CSUM_DEF 1
302 /* txcsum_offload[] is used for setting the checksum offload ability of NIC.
303 (We only support RX checksum offload now)
304 0: disable csum_offload[checksum offload
305 1: enable checksum offload. (Default)
307 VELOCITY_PARAM(txcsum_offload, "Enable transmit packet checksum offload");
309 #define FLOW_CNTL_DEF 1
310 #define FLOW_CNTL_MIN 1
311 #define FLOW_CNTL_MAX 5
313 /* flow_control[] is used for setting the flow control ability of NIC.
314 1: hardware deafult - AUTO (default). Use Hardware default value in ANAR.
315 2: enable TX flow control.
316 3: enable RX flow control.
317 4: enable RX/TX flow control.
320 VELOCITY_PARAM(flow_control, "Enable flow control ability");
322 #define MED_LNK_DEF 0
323 #define MED_LNK_MIN 0
324 #define MED_LNK_MAX 4
325 /* speed_duplex[] is used for setting the speed and duplex mode of NIC.
326 0: indicate autonegotiation for both speed and duplex mode
327 1: indicate 100Mbps half duplex mode
328 2: indicate 100Mbps full duplex mode
329 3: indicate 10Mbps half duplex mode
330 4: indicate 10Mbps full duplex mode
333 if EEPROM have been set to the force mode, this option is ignored
336 VELOCITY_PARAM(speed_duplex, "Setting the speed and duplex mode");
338 #define VAL_PKT_LEN_DEF 0
339 /* ValPktLen[] is used for setting the checksum offload ability of NIC.
340 0: Receive frame with invalid layer 2 length (Default)
341 1: Drop frame with invalid layer 2 length
343 VELOCITY_PARAM(ValPktLen, "Receiving or Drop invalid 802.3 frame");
345 #define WOL_OPT_DEF 0
346 #define WOL_OPT_MIN 0
347 #define WOL_OPT_MAX 7
348 /* wol_opts[] is used for controlling wake on lan behavior.
349 0: Wake up if recevied a magic packet. (Default)
350 1: Wake up if link status is on/off.
351 2: Wake up if recevied an arp packet.
352 4: Wake up if recevied any unicast packet.
353 Those value can be sumed up to support more than one option.
355 VELOCITY_PARAM(wol_opts, "Wake On Lan options");
357 #define INT_WORKS_DEF 20
358 #define INT_WORKS_MIN 10
359 #define INT_WORKS_MAX 64
361 VELOCITY_PARAM(int_works, "Number of packets per interrupt services");
363 static int rx_copybreak = 200;
364 module_param(rx_copybreak, int, 0644);
365 MODULE_PARM_DESC(rx_copybreak, "Copy breakpoint for copy-only-tiny-frames");
368 static DEFINE_SPINLOCK(velocity_dev_list_lock);
369 static LIST_HEAD(velocity_dev_list);
373 * Internal board variants. At the moment we have only one
375 static struct velocity_info_tbl chip_info_table[] = {
376 {CHIP_TYPE_VT6110, "VIA Networking Velocity Family Gigabit Ethernet Adapter", 1, 0x00FFFFFFUL},
381 * Describe the PCI device identifiers that we support in this
382 * device driver. Used for hotplug autoloading.
384 static const struct pci_device_id velocity_id_table[] __devinitdata = {
385 { PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_612X) },
389 MODULE_DEVICE_TABLE(pci, velocity_id_table);
392 * get_chip_name - identifier to name
393 * @id: chip identifier
395 * Given a chip identifier return a suitable description. Returns
396 * a pointer a static string valid while the driver is loaded.
398 static const char __devinit *get_chip_name(enum chip_type chip_id)
401 for (i = 0; chip_info_table[i].name != NULL; i++)
402 if (chip_info_table[i].chip_id == chip_id)
404 return chip_info_table[i].name;
408 * velocity_remove1 - device unplug
409 * @pdev: PCI device being removed
411 * Device unload callback. Called on an unplug or on module
412 * unload for each active device that is present. Disconnects
413 * the device from the network layer and frees all the resources
415 static void __devexit velocity_remove1(struct pci_dev *pdev)
417 struct net_device *dev = pci_get_drvdata(pdev);
418 struct velocity_info *vptr = netdev_priv(dev);
423 spin_lock_irqsave(&velocity_dev_list_lock, flags);
424 if (!list_empty(&velocity_dev_list))
425 list_del(&vptr->list);
426 spin_unlock_irqrestore(&velocity_dev_list_lock, flags);
428 unregister_netdev(dev);
429 iounmap(vptr->mac_regs);
430 pci_release_regions(pdev);
431 pci_disable_device(pdev);
432 pci_set_drvdata(pdev, NULL);
439 * velocity_set_int_opt - parser for integer options
440 * @opt: pointer to option value
441 * @val: value the user requested (or -1 for default)
442 * @min: lowest value allowed
443 * @max: highest value allowed
444 * @def: default value
445 * @name: property name
448 * Set an integer property in the module options. This function does
449 * all the verification and checking as well as reporting so that
450 * we don't duplicate code for each option.
452 static void __devinit velocity_set_int_opt(int *opt, int val, int min, int max, int def, char *name, const char *devname)
456 else if (val < min || val > max) {
457 VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: the value of parameter %s is invalid, the valid range is (%d-%d)\n",
458 devname, name, min, max);
461 VELOCITY_PRT(MSG_LEVEL_INFO, KERN_INFO "%s: set value of parameter %s to %d\n",
468 * velocity_set_bool_opt - parser for boolean options
469 * @opt: pointer to option value
470 * @val: value the user requested (or -1 for default)
471 * @def: default value (yes/no)
472 * @flag: numeric value to set for true.
473 * @name: property name
476 * Set a boolean property in the module options. This function does
477 * all the verification and checking as well as reporting so that
478 * we don't duplicate code for each option.
480 static void __devinit velocity_set_bool_opt(u32 *opt, int val, int def, u32 flag, char *name, const char *devname)
484 *opt |= (def ? flag : 0);
485 else if (val < 0 || val > 1) {
486 printk(KERN_NOTICE "%s: the value of parameter %s is invalid, the valid range is (0-1)\n",
488 *opt |= (def ? flag : 0);
490 printk(KERN_INFO "%s: set parameter %s to %s\n",
491 devname, name, val ? "TRUE" : "FALSE");
492 *opt |= (val ? flag : 0);
497 * velocity_get_options - set options on device
498 * @opts: option structure for the device
499 * @index: index of option to use in module options array
500 * @devname: device name
502 * Turn the module and command options into a single structure
503 * for the current device
505 static void __devinit velocity_get_options(struct velocity_opt *opts, int index, const char *devname)
508 velocity_set_int_opt(&opts->rx_thresh, rx_thresh[index], RX_THRESH_MIN, RX_THRESH_MAX, RX_THRESH_DEF, "rx_thresh", devname);
509 velocity_set_int_opt(&opts->DMA_length, DMA_length[index], DMA_LENGTH_MIN, DMA_LENGTH_MAX, DMA_LENGTH_DEF, "DMA_length", devname);
510 velocity_set_int_opt(&opts->numrx, RxDescriptors[index], RX_DESC_MIN, RX_DESC_MAX, RX_DESC_DEF, "RxDescriptors", devname);
511 velocity_set_int_opt(&opts->numtx, TxDescriptors[index], TX_DESC_MIN, TX_DESC_MAX, TX_DESC_DEF, "TxDescriptors", devname);
513 velocity_set_bool_opt(&opts->flags, txcsum_offload[index], TX_CSUM_DEF, VELOCITY_FLAGS_TX_CSUM, "txcsum_offload", devname);
514 velocity_set_int_opt(&opts->flow_cntl, flow_control[index], FLOW_CNTL_MIN, FLOW_CNTL_MAX, FLOW_CNTL_DEF, "flow_control", devname);
515 velocity_set_bool_opt(&opts->flags, IP_byte_align[index], IP_ALIG_DEF, VELOCITY_FLAGS_IP_ALIGN, "IP_byte_align", devname);
516 velocity_set_bool_opt(&opts->flags, ValPktLen[index], VAL_PKT_LEN_DEF, VELOCITY_FLAGS_VAL_PKT_LEN, "ValPktLen", devname);
517 velocity_set_int_opt((int *) &opts->spd_dpx, speed_duplex[index], MED_LNK_MIN, MED_LNK_MAX, MED_LNK_DEF, "Media link mode", devname);
518 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);
519 velocity_set_int_opt((int *) &opts->int_works, int_works[index], INT_WORKS_MIN, INT_WORKS_MAX, INT_WORKS_DEF, "Interrupt service works", devname);
520 opts->numrx = (opts->numrx & ~3);
524 * velocity_init_cam_filter - initialise CAM
525 * @vptr: velocity to program
527 * Initialize the content addressable memory used for filters. Load
528 * appropriately according to the presence of VLAN
530 static void velocity_init_cam_filter(struct velocity_info *vptr)
532 struct mac_regs __iomem *regs = vptr->mac_regs;
534 /* Turn on MCFG_PQEN, turn off MCFG_RTGOPT */
535 WORD_REG_BITS_SET(MCFG_PQEN, MCFG_RTGOPT, ®s->MCFG);
536 WORD_REG_BITS_ON(MCFG_VIDFR, ®s->MCFG);
538 /* Disable all CAMs */
539 memset(vptr->vCAMmask, 0, sizeof(u8) * 8);
540 memset(vptr->mCAMmask, 0, sizeof(u8) * 8);
541 mac_set_vlan_cam_mask(regs, vptr->vCAMmask);
542 mac_set_cam_mask(regs, vptr->mCAMmask);
546 unsigned int vid, i = 0;
548 if (!vlan_group_get_device(vptr->vlgrp, 0))
549 WORD_REG_BITS_ON(MCFG_RTGOPT, ®s->MCFG);
551 for (vid = 1; (vid < VLAN_VID_MASK); vid++) {
552 if (vlan_group_get_device(vptr->vlgrp, vid)) {
553 mac_set_vlan_cam(regs, i, (u8 *) &vid);
554 vptr->vCAMmask[i / 8] |= 0x1 << (i % 8);
555 if (++i >= VCAM_SIZE)
559 mac_set_vlan_cam_mask(regs, vptr->vCAMmask);
563 static void velocity_vlan_rx_register(struct net_device *dev,
564 struct vlan_group *grp)
566 struct velocity_info *vptr = netdev_priv(dev);
571 static void velocity_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
573 struct velocity_info *vptr = netdev_priv(dev);
575 spin_lock_irq(&vptr->lock);
576 velocity_init_cam_filter(vptr);
577 spin_unlock_irq(&vptr->lock);
580 static void velocity_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
582 struct velocity_info *vptr = netdev_priv(dev);
584 spin_lock_irq(&vptr->lock);
585 vlan_group_set_device(vptr->vlgrp, vid, NULL);
586 velocity_init_cam_filter(vptr);
587 spin_unlock_irq(&vptr->lock);
590 static void velocity_init_rx_ring_indexes(struct velocity_info *vptr)
592 vptr->rx.dirty = vptr->rx.filled = vptr->rx.curr = 0;
596 * velocity_rx_reset - handle a receive reset
597 * @vptr: velocity we are resetting
599 * Reset the ownership and status for the receive ring side.
600 * Hand all the receive queue to the NIC.
602 static void velocity_rx_reset(struct velocity_info *vptr)
605 struct mac_regs __iomem *regs = vptr->mac_regs;
608 velocity_init_rx_ring_indexes(vptr);
611 * Init state, all RD entries belong to the NIC
613 for (i = 0; i < vptr->options.numrx; ++i)
614 vptr->rx.ring[i].rdesc0.len |= OWNED_BY_NIC;
616 writew(vptr->options.numrx, ®s->RBRDU);
617 writel(vptr->rx.pool_dma, ®s->RDBaseLo);
618 writew(0, ®s->RDIdx);
619 writew(vptr->options.numrx - 1, ®s->RDCSize);
623 * velocity_get_opt_media_mode - get media selection
624 * @vptr: velocity adapter
626 * Get the media mode stored in EEPROM or module options and load
627 * mii_status accordingly. The requested link state information
630 static u32 velocity_get_opt_media_mode(struct velocity_info *vptr)
634 switch (vptr->options.spd_dpx) {
636 status = VELOCITY_AUTONEG_ENABLE;
638 case SPD_DPX_100_FULL:
639 status = VELOCITY_SPEED_100 | VELOCITY_DUPLEX_FULL;
641 case SPD_DPX_10_FULL:
642 status = VELOCITY_SPEED_10 | VELOCITY_DUPLEX_FULL;
644 case SPD_DPX_100_HALF:
645 status = VELOCITY_SPEED_100;
647 case SPD_DPX_10_HALF:
648 status = VELOCITY_SPEED_10;
651 vptr->mii_status = status;
656 * safe_disable_mii_autopoll - autopoll off
657 * @regs: velocity registers
659 * Turn off the autopoll and wait for it to disable on the chip
661 static void safe_disable_mii_autopoll(struct mac_regs __iomem *regs)
666 writeb(0, ®s->MIICR);
667 for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
669 if (BYTE_REG_BITS_IS_ON(MIISR_MIDLE, ®s->MIISR))
675 * enable_mii_autopoll - turn on autopolling
676 * @regs: velocity registers
678 * Enable the MII link status autopoll feature on the Velocity
679 * hardware. Wait for it to enable.
681 static void enable_mii_autopoll(struct mac_regs __iomem *regs)
685 writeb(0, &(regs->MIICR));
686 writeb(MIIADR_SWMPL, ®s->MIIADR);
688 for (ii = 0; ii < W_MAX_TIMEOUT; ii++) {
690 if (BYTE_REG_BITS_IS_ON(MIISR_MIDLE, ®s->MIISR))
694 writeb(MIICR_MAUTO, ®s->MIICR);
696 for (ii = 0; ii < W_MAX_TIMEOUT; ii++) {
698 if (!BYTE_REG_BITS_IS_ON(MIISR_MIDLE, ®s->MIISR))
705 * velocity_mii_read - read MII data
706 * @regs: velocity registers
707 * @index: MII register index
708 * @data: buffer for received data
710 * Perform a single read of an MII 16bit register. Returns zero
711 * on success or -ETIMEDOUT if the PHY did not respond.
713 static int velocity_mii_read(struct mac_regs __iomem *regs, u8 index, u16 *data)
718 * Disable MIICR_MAUTO, so that mii addr can be set normally
720 safe_disable_mii_autopoll(regs);
722 writeb(index, ®s->MIIADR);
724 BYTE_REG_BITS_ON(MIICR_RCMD, ®s->MIICR);
726 for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
727 if (!(readb(®s->MIICR) & MIICR_RCMD))
731 *data = readw(®s->MIIDATA);
733 enable_mii_autopoll(regs);
734 if (ww == W_MAX_TIMEOUT)
741 * mii_check_media_mode - check media state
742 * @regs: velocity registers
744 * Check the current MII status and determine the link status
747 static u32 mii_check_media_mode(struct mac_regs __iomem *regs)
752 if (!MII_REG_BITS_IS_ON(BMSR_LNK, MII_REG_BMSR, regs))
753 status |= VELOCITY_LINK_FAIL;
755 if (MII_REG_BITS_IS_ON(G1000CR_1000FD, MII_REG_G1000CR, regs))
756 status |= VELOCITY_SPEED_1000 | VELOCITY_DUPLEX_FULL;
757 else if (MII_REG_BITS_IS_ON(G1000CR_1000, MII_REG_G1000CR, regs))
758 status |= (VELOCITY_SPEED_1000);
760 velocity_mii_read(regs, MII_REG_ANAR, &ANAR);
761 if (ANAR & ANAR_TXFD)
762 status |= (VELOCITY_SPEED_100 | VELOCITY_DUPLEX_FULL);
763 else if (ANAR & ANAR_TX)
764 status |= VELOCITY_SPEED_100;
765 else if (ANAR & ANAR_10FD)
766 status |= (VELOCITY_SPEED_10 | VELOCITY_DUPLEX_FULL);
768 status |= (VELOCITY_SPEED_10);
771 if (MII_REG_BITS_IS_ON(BMCR_AUTO, MII_REG_BMCR, regs)) {
772 velocity_mii_read(regs, MII_REG_ANAR, &ANAR);
773 if ((ANAR & (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10))
774 == (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10)) {
775 if (MII_REG_BITS_IS_ON(G1000CR_1000 | G1000CR_1000FD, MII_REG_G1000CR, regs))
776 status |= VELOCITY_AUTONEG_ENABLE;
784 * velocity_mii_write - write MII data
785 * @regs: velocity registers
786 * @index: MII register index
787 * @data: 16bit data for the MII register
789 * Perform a single write to an MII 16bit register. Returns zero
790 * on success or -ETIMEDOUT if the PHY did not respond.
792 static int velocity_mii_write(struct mac_regs __iomem *regs, u8 mii_addr, u16 data)
797 * Disable MIICR_MAUTO, so that mii addr can be set normally
799 safe_disable_mii_autopoll(regs);
802 writeb(mii_addr, ®s->MIIADR);
804 writew(data, ®s->MIIDATA);
806 /* turn on MIICR_WCMD */
807 BYTE_REG_BITS_ON(MIICR_WCMD, ®s->MIICR);
809 /* W_MAX_TIMEOUT is the timeout period */
810 for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
812 if (!(readb(®s->MIICR) & MIICR_WCMD))
815 enable_mii_autopoll(regs);
817 if (ww == W_MAX_TIMEOUT)
823 * set_mii_flow_control - flow control setup
824 * @vptr: velocity interface
826 * Set up the flow control on this interface according to
827 * the supplied user/eeprom options.
829 static void set_mii_flow_control(struct velocity_info *vptr)
831 /*Enable or Disable PAUSE in ANAR */
832 switch (vptr->options.flow_cntl) {
834 MII_REG_BITS_OFF(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs);
835 MII_REG_BITS_ON(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs);
839 MII_REG_BITS_ON(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs);
840 MII_REG_BITS_ON(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs);
843 case FLOW_CNTL_TX_RX:
844 MII_REG_BITS_ON(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs);
845 MII_REG_BITS_ON(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs);
848 case FLOW_CNTL_DISABLE:
849 MII_REG_BITS_OFF(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs);
850 MII_REG_BITS_OFF(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs);
858 * mii_set_auto_on - autonegotiate on
861 * Enable autonegotation on this interface
863 static void mii_set_auto_on(struct velocity_info *vptr)
865 if (MII_REG_BITS_IS_ON(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs))
866 MII_REG_BITS_ON(BMCR_REAUTO, MII_REG_BMCR, vptr->mac_regs);
868 MII_REG_BITS_ON(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs);
871 static u32 check_connection_type(struct mac_regs __iomem *regs)
876 PHYSR0 = readb(®s->PHYSR0);
879 if (!(PHYSR0 & PHYSR0_LINKGD))
880 status|=VELOCITY_LINK_FAIL;
883 if (PHYSR0 & PHYSR0_FDPX)
884 status |= VELOCITY_DUPLEX_FULL;
886 if (PHYSR0 & PHYSR0_SPDG)
887 status |= VELOCITY_SPEED_1000;
888 else if (PHYSR0 & PHYSR0_SPD10)
889 status |= VELOCITY_SPEED_10;
891 status |= VELOCITY_SPEED_100;
893 if (MII_REG_BITS_IS_ON(BMCR_AUTO, MII_REG_BMCR, regs)) {
894 velocity_mii_read(regs, MII_REG_ANAR, &ANAR);
895 if ((ANAR & (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10))
896 == (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10)) {
897 if (MII_REG_BITS_IS_ON(G1000CR_1000 | G1000CR_1000FD, MII_REG_G1000CR, regs))
898 status |= VELOCITY_AUTONEG_ENABLE;
908 * velocity_set_media_mode - set media mode
909 * @mii_status: old MII link state
911 * Check the media link state and configure the flow control
912 * PHY and also velocity hardware setup accordingly. In particular
913 * we need to set up CD polling and frame bursting.
915 static int velocity_set_media_mode(struct velocity_info *vptr, u32 mii_status)
918 struct mac_regs __iomem *regs = vptr->mac_regs;
920 vptr->mii_status = mii_check_media_mode(vptr->mac_regs);
921 curr_status = vptr->mii_status & (~VELOCITY_LINK_FAIL);
923 /* Set mii link status */
924 set_mii_flow_control(vptr);
927 Check if new status is consisent with current status
928 if (((mii_status & curr_status) & VELOCITY_AUTONEG_ENABLE)
929 || (mii_status==curr_status)) {
930 vptr->mii_status=mii_check_media_mode(vptr->mac_regs);
931 vptr->mii_status=check_connection_type(vptr->mac_regs);
932 VELOCITY_PRT(MSG_LEVEL_INFO, "Velocity link no change\n");
937 if (PHYID_GET_PHY_ID(vptr->phy_id) == PHYID_CICADA_CS8201)
938 MII_REG_BITS_ON(AUXCR_MDPPS, MII_REG_AUXCR, vptr->mac_regs);
941 * If connection type is AUTO
943 if (mii_status & VELOCITY_AUTONEG_ENABLE) {
944 VELOCITY_PRT(MSG_LEVEL_INFO, "Velocity is AUTO mode\n");
945 /* clear force MAC mode bit */
946 BYTE_REG_BITS_OFF(CHIPGCR_FCMODE, ®s->CHIPGCR);
947 /* set duplex mode of MAC according to duplex mode of MII */
948 MII_REG_BITS_ON(ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10, MII_REG_ANAR, vptr->mac_regs);
949 MII_REG_BITS_ON(G1000CR_1000FD | G1000CR_1000, MII_REG_G1000CR, vptr->mac_regs);
950 MII_REG_BITS_ON(BMCR_SPEED1G, MII_REG_BMCR, vptr->mac_regs);
952 /* enable AUTO-NEGO mode */
953 mii_set_auto_on(vptr);
959 * 1. if it's 3119, disable frame bursting in halfduplex mode
960 * and enable it in fullduplex mode
961 * 2. set correct MII/GMII and half/full duplex mode in CHIPGCR
962 * 3. only enable CD heart beat counter in 10HD mode
965 /* set force MAC mode bit */
966 BYTE_REG_BITS_ON(CHIPGCR_FCMODE, ®s->CHIPGCR);
968 CHIPGCR = readb(®s->CHIPGCR);
969 CHIPGCR &= ~CHIPGCR_FCGMII;
971 if (mii_status & VELOCITY_DUPLEX_FULL) {
972 CHIPGCR |= CHIPGCR_FCFDX;
973 writeb(CHIPGCR, ®s->CHIPGCR);
974 VELOCITY_PRT(MSG_LEVEL_INFO, "set Velocity to forced full mode\n");
975 if (vptr->rev_id < REV_ID_VT3216_A0)
976 BYTE_REG_BITS_OFF(TCR_TB2BDIS, ®s->TCR);
978 CHIPGCR &= ~CHIPGCR_FCFDX;
979 VELOCITY_PRT(MSG_LEVEL_INFO, "set Velocity to forced half mode\n");
980 writeb(CHIPGCR, ®s->CHIPGCR);
981 if (vptr->rev_id < REV_ID_VT3216_A0)
982 BYTE_REG_BITS_ON(TCR_TB2BDIS, ®s->TCR);
985 MII_REG_BITS_OFF(G1000CR_1000FD | G1000CR_1000, MII_REG_G1000CR, vptr->mac_regs);
987 if (!(mii_status & VELOCITY_DUPLEX_FULL) && (mii_status & VELOCITY_SPEED_10))
988 BYTE_REG_BITS_OFF(TESTCFG_HBDIS, ®s->TESTCFG);
990 BYTE_REG_BITS_ON(TESTCFG_HBDIS, ®s->TESTCFG);
992 /* MII_REG_BITS_OFF(BMCR_SPEED1G, MII_REG_BMCR, vptr->mac_regs); */
993 velocity_mii_read(vptr->mac_regs, MII_REG_ANAR, &ANAR);
994 ANAR &= (~(ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10));
995 if (mii_status & VELOCITY_SPEED_100) {
996 if (mii_status & VELOCITY_DUPLEX_FULL)
1001 if (mii_status & VELOCITY_DUPLEX_FULL)
1006 velocity_mii_write(vptr->mac_regs, MII_REG_ANAR, ANAR);
1007 /* enable AUTO-NEGO mode */
1008 mii_set_auto_on(vptr);
1009 /* MII_REG_BITS_ON(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs); */
1011 /* vptr->mii_status=mii_check_media_mode(vptr->mac_regs); */
1012 /* vptr->mii_status=check_connection_type(vptr->mac_regs); */
1013 return VELOCITY_LINK_CHANGE;
1017 * velocity_print_link_status - link status reporting
1018 * @vptr: velocity to report on
1020 * Turn the link status of the velocity card into a kernel log
1021 * description of the new link state, detailing speed and duplex
1024 static void velocity_print_link_status(struct velocity_info *vptr)
1027 if (vptr->mii_status & VELOCITY_LINK_FAIL) {
1028 VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: failed to detect cable link\n", vptr->dev->name);
1029 } else if (vptr->options.spd_dpx == SPD_DPX_AUTO) {
1030 VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: Link auto-negotiation", vptr->dev->name);
1032 if (vptr->mii_status & VELOCITY_SPEED_1000)
1033 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 1000M bps");
1034 else if (vptr->mii_status & VELOCITY_SPEED_100)
1035 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 100M bps");
1037 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 10M bps");
1039 if (vptr->mii_status & VELOCITY_DUPLEX_FULL)
1040 VELOCITY_PRT(MSG_LEVEL_INFO, " full duplex\n");
1042 VELOCITY_PRT(MSG_LEVEL_INFO, " half duplex\n");
1044 VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: Link forced", vptr->dev->name);
1045 switch (vptr->options.spd_dpx) {
1046 case SPD_DPX_100_HALF:
1047 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 100M bps half duplex\n");
1049 case SPD_DPX_100_FULL:
1050 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 100M bps full duplex\n");
1052 case SPD_DPX_10_HALF:
1053 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 10M bps half duplex\n");
1055 case SPD_DPX_10_FULL:
1056 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 10M bps full duplex\n");
1065 * enable_flow_control_ability - flow control
1066 * @vptr: veloity to configure
1068 * Set up flow control according to the flow control options
1069 * determined by the eeprom/configuration.
1071 static void enable_flow_control_ability(struct velocity_info *vptr)
1074 struct mac_regs __iomem *regs = vptr->mac_regs;
1076 switch (vptr->options.flow_cntl) {
1078 case FLOW_CNTL_DEFAULT:
1079 if (BYTE_REG_BITS_IS_ON(PHYSR0_RXFLC, ®s->PHYSR0))
1080 writel(CR0_FDXRFCEN, ®s->CR0Set);
1082 writel(CR0_FDXRFCEN, ®s->CR0Clr);
1084 if (BYTE_REG_BITS_IS_ON(PHYSR0_TXFLC, ®s->PHYSR0))
1085 writel(CR0_FDXTFCEN, ®s->CR0Set);
1087 writel(CR0_FDXTFCEN, ®s->CR0Clr);
1091 writel(CR0_FDXTFCEN, ®s->CR0Set);
1092 writel(CR0_FDXRFCEN, ®s->CR0Clr);
1096 writel(CR0_FDXRFCEN, ®s->CR0Set);
1097 writel(CR0_FDXTFCEN, ®s->CR0Clr);
1100 case FLOW_CNTL_TX_RX:
1101 writel(CR0_FDXTFCEN, ®s->CR0Set);
1102 writel(CR0_FDXRFCEN, ®s->CR0Set);
1105 case FLOW_CNTL_DISABLE:
1106 writel(CR0_FDXRFCEN, ®s->CR0Clr);
1107 writel(CR0_FDXTFCEN, ®s->CR0Clr);
1117 * velocity_soft_reset - soft reset
1118 * @vptr: velocity to reset
1120 * Kick off a soft reset of the velocity adapter and then poll
1121 * until the reset sequence has completed before returning.
1123 static int velocity_soft_reset(struct velocity_info *vptr)
1125 struct mac_regs __iomem *regs = vptr->mac_regs;
1128 writel(CR0_SFRST, ®s->CR0Set);
1130 for (i = 0; i < W_MAX_TIMEOUT; i++) {
1132 if (!DWORD_REG_BITS_IS_ON(CR0_SFRST, ®s->CR0Set))
1136 if (i == W_MAX_TIMEOUT) {
1137 writel(CR0_FORSRST, ®s->CR0Set);
1138 /* FIXME: PCI POSTING */
1146 * velocity_set_multi - filter list change callback
1147 * @dev: network device
1149 * Called by the network layer when the filter lists need to change
1150 * for a velocity adapter. Reload the CAMs with the new address
1153 static void velocity_set_multi(struct net_device *dev)
1155 struct velocity_info *vptr = netdev_priv(dev);
1156 struct mac_regs __iomem *regs = vptr->mac_regs;
1159 struct dev_mc_list *mclist;
1161 if (dev->flags & IFF_PROMISC) { /* Set promiscuous. */
1162 writel(0xffffffff, ®s->MARCAM[0]);
1163 writel(0xffffffff, ®s->MARCAM[4]);
1164 rx_mode = (RCR_AM | RCR_AB | RCR_PROM);
1165 } else if ((dev->mc_count > vptr->multicast_limit)
1166 || (dev->flags & IFF_ALLMULTI)) {
1167 writel(0xffffffff, ®s->MARCAM[0]);
1168 writel(0xffffffff, ®s->MARCAM[4]);
1169 rx_mode = (RCR_AM | RCR_AB);
1171 int offset = MCAM_SIZE - vptr->multicast_limit;
1172 mac_get_cam_mask(regs, vptr->mCAMmask);
1174 for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count; i++, mclist = mclist->next) {
1175 mac_set_cam(regs, i + offset, mclist->dmi_addr);
1176 vptr->mCAMmask[(offset + i) / 8] |= 1 << ((offset + i) & 7);
1179 mac_set_cam_mask(regs, vptr->mCAMmask);
1180 rx_mode = RCR_AM | RCR_AB | RCR_AP;
1182 if (dev->mtu > 1500)
1185 BYTE_REG_BITS_ON(rx_mode, ®s->RCR);
1190 * MII access , media link mode setting functions
1194 * mii_init - set up MII
1195 * @vptr: velocity adapter
1196 * @mii_status: links tatus
1198 * Set up the PHY for the current link state.
1200 static void mii_init(struct velocity_info *vptr, u32 mii_status)
1204 switch (PHYID_GET_PHY_ID(vptr->phy_id)) {
1205 case PHYID_CICADA_CS8201:
1207 * Reset to hardware default
1209 MII_REG_BITS_OFF((ANAR_ASMDIR | ANAR_PAUSE), MII_REG_ANAR, vptr->mac_regs);
1211 * Turn on ECHODIS bit in NWay-forced full mode and turn it
1212 * off it in NWay-forced half mode for NWay-forced v.s.
1213 * legacy-forced issue.
1215 if (vptr->mii_status & VELOCITY_DUPLEX_FULL)
1216 MII_REG_BITS_ON(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs);
1218 MII_REG_BITS_OFF(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs);
1220 * Turn on Link/Activity LED enable bit for CIS8201
1222 MII_REG_BITS_ON(PLED_LALBE, MII_REG_PLED, vptr->mac_regs);
1224 case PHYID_VT3216_32BIT:
1225 case PHYID_VT3216_64BIT:
1227 * Reset to hardware default
1229 MII_REG_BITS_ON((ANAR_ASMDIR | ANAR_PAUSE), MII_REG_ANAR, vptr->mac_regs);
1231 * Turn on ECHODIS bit in NWay-forced full mode and turn it
1232 * off it in NWay-forced half mode for NWay-forced v.s.
1233 * legacy-forced issue
1235 if (vptr->mii_status & VELOCITY_DUPLEX_FULL)
1236 MII_REG_BITS_ON(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs);
1238 MII_REG_BITS_OFF(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs);
1241 case PHYID_MARVELL_1000:
1242 case PHYID_MARVELL_1000S:
1244 * Assert CRS on Transmit
1246 MII_REG_BITS_ON(PSCR_ACRSTX, MII_REG_PSCR, vptr->mac_regs);
1248 * Reset to hardware default
1250 MII_REG_BITS_ON((ANAR_ASMDIR | ANAR_PAUSE), MII_REG_ANAR, vptr->mac_regs);
1255 velocity_mii_read(vptr->mac_regs, MII_REG_BMCR, &BMCR);
1256 if (BMCR & BMCR_ISO) {
1258 velocity_mii_write(vptr->mac_regs, MII_REG_BMCR, BMCR);
1264 * velocity_init_registers - initialise MAC registers
1265 * @vptr: velocity to init
1266 * @type: type of initialisation (hot or cold)
1268 * Initialise the MAC on a reset or on first set up on the
1271 static void velocity_init_registers(struct velocity_info *vptr,
1272 enum velocity_init_type type)
1274 struct mac_regs __iomem *regs = vptr->mac_regs;
1277 mac_wol_reset(regs);
1280 case VELOCITY_INIT_RESET:
1281 case VELOCITY_INIT_WOL:
1283 netif_stop_queue(vptr->dev);
1286 * Reset RX to prevent RX pointer not on the 4X location
1288 velocity_rx_reset(vptr);
1289 mac_rx_queue_run(regs);
1290 mac_rx_queue_wake(regs);
1292 mii_status = velocity_get_opt_media_mode(vptr);
1293 if (velocity_set_media_mode(vptr, mii_status) != VELOCITY_LINK_CHANGE) {
1294 velocity_print_link_status(vptr);
1295 if (!(vptr->mii_status & VELOCITY_LINK_FAIL))
1296 netif_wake_queue(vptr->dev);
1299 enable_flow_control_ability(vptr);
1301 mac_clear_isr(regs);
1302 writel(CR0_STOP, ®s->CR0Clr);
1303 writel((CR0_DPOLL | CR0_TXON | CR0_RXON | CR0_STRT),
1308 case VELOCITY_INIT_COLD:
1313 velocity_soft_reset(vptr);
1316 mac_eeprom_reload(regs);
1317 for (i = 0; i < 6; i++)
1318 writeb(vptr->dev->dev_addr[i], &(regs->PAR[i]));
1321 * clear Pre_ACPI bit.
1323 BYTE_REG_BITS_OFF(CFGA_PACPI, &(regs->CFGA));
1324 mac_set_rx_thresh(regs, vptr->options.rx_thresh);
1325 mac_set_dma_length(regs, vptr->options.DMA_length);
1327 writeb(WOLCFG_SAM | WOLCFG_SAB, ®s->WOLCFGSet);
1329 * Back off algorithm use original IEEE standard
1331 BYTE_REG_BITS_SET(CFGB_OFSET, (CFGB_CRANDOM | CFGB_CAP | CFGB_MBA | CFGB_BAKOPT), ®s->CFGB);
1336 velocity_init_cam_filter(vptr);
1339 * Set packet filter: Receive directed and broadcast address
1341 velocity_set_multi(vptr->dev);
1344 * Enable MII auto-polling
1346 enable_mii_autopoll(regs);
1348 vptr->int_mask = INT_MASK_DEF;
1350 writel(vptr->rx.pool_dma, ®s->RDBaseLo);
1351 writew(vptr->options.numrx - 1, ®s->RDCSize);
1352 mac_rx_queue_run(regs);
1353 mac_rx_queue_wake(regs);
1355 writew(vptr->options.numtx - 1, ®s->TDCSize);
1357 for (i = 0; i < vptr->tx.numq; i++) {
1358 writel(vptr->tx.pool_dma[i], ®s->TDBaseLo[i]);
1359 mac_tx_queue_run(regs, i);
1362 init_flow_control_register(vptr);
1364 writel(CR0_STOP, ®s->CR0Clr);
1365 writel((CR0_DPOLL | CR0_TXON | CR0_RXON | CR0_STRT), ®s->CR0Set);
1367 mii_status = velocity_get_opt_media_mode(vptr);
1368 netif_stop_queue(vptr->dev);
1370 mii_init(vptr, mii_status);
1372 if (velocity_set_media_mode(vptr, mii_status) != VELOCITY_LINK_CHANGE) {
1373 velocity_print_link_status(vptr);
1374 if (!(vptr->mii_status & VELOCITY_LINK_FAIL))
1375 netif_wake_queue(vptr->dev);
1378 enable_flow_control_ability(vptr);
1379 mac_hw_mibs_init(regs);
1380 mac_write_int_mask(vptr->int_mask, regs);
1381 mac_clear_isr(regs);
1386 static void velocity_give_many_rx_descs(struct velocity_info *vptr)
1388 struct mac_regs __iomem *regs = vptr->mac_regs;
1389 int avail, dirty, unusable;
1392 * RD number must be equal to 4X per hardware spec
1393 * (programming guide rev 1.20, p.13)
1395 if (vptr->rx.filled < 4)
1400 unusable = vptr->rx.filled & 0x0003;
1401 dirty = vptr->rx.dirty - unusable;
1402 for (avail = vptr->rx.filled & 0xfffc; avail; avail--) {
1403 dirty = (dirty > 0) ? dirty - 1 : vptr->options.numrx - 1;
1404 vptr->rx.ring[dirty].rdesc0.len |= OWNED_BY_NIC;
1407 writew(vptr->rx.filled & 0xfffc, ®s->RBRDU);
1408 vptr->rx.filled = unusable;
1412 * velocity_init_dma_rings - set up DMA rings
1413 * @vptr: Velocity to set up
1415 * Allocate PCI mapped DMA rings for the receive and transmit layer
1418 static int velocity_init_dma_rings(struct velocity_info *vptr)
1420 struct velocity_opt *opt = &vptr->options;
1421 const unsigned int rx_ring_size = opt->numrx * sizeof(struct rx_desc);
1422 const unsigned int tx_ring_size = opt->numtx * sizeof(struct tx_desc);
1423 struct pci_dev *pdev = vptr->pdev;
1424 dma_addr_t pool_dma;
1429 * Allocate all RD/TD rings a single pool.
1431 * pci_alloc_consistent() fulfills the requirement for 64 bytes
1434 pool = pci_alloc_consistent(pdev, tx_ring_size * vptr->tx.numq +
1435 rx_ring_size, &pool_dma);
1437 dev_err(&pdev->dev, "%s : DMA memory allocation failed.\n",
1442 vptr->rx.ring = pool;
1443 vptr->rx.pool_dma = pool_dma;
1445 pool += rx_ring_size;
1446 pool_dma += rx_ring_size;
1448 for (i = 0; i < vptr->tx.numq; i++) {
1449 vptr->tx.rings[i] = pool;
1450 vptr->tx.pool_dma[i] = pool_dma;
1451 pool += tx_ring_size;
1452 pool_dma += tx_ring_size;
1458 static void velocity_set_rxbufsize(struct velocity_info *vptr, int mtu)
1460 vptr->rx.buf_sz = (mtu <= ETH_DATA_LEN) ? PKT_BUF_SZ : mtu + 32;
1464 * velocity_alloc_rx_buf - allocate aligned receive buffer
1468 * Allocate a new full sized buffer for the reception of a frame and
1469 * map it into PCI space for the hardware to use. The hardware
1470 * requires *64* byte alignment of the buffer which makes life
1471 * less fun than would be ideal.
1473 static int velocity_alloc_rx_buf(struct velocity_info *vptr, int idx)
1475 struct rx_desc *rd = &(vptr->rx.ring[idx]);
1476 struct velocity_rd_info *rd_info = &(vptr->rx.info[idx]);
1478 rd_info->skb = dev_alloc_skb(vptr->rx.buf_sz + 64);
1479 if (rd_info->skb == NULL)
1483 * Do the gymnastics to get the buffer head for data at
1486 skb_reserve(rd_info->skb, (unsigned long) rd_info->skb->data & 63);
1487 rd_info->skb_dma = pci_map_single(vptr->pdev, rd_info->skb->data,
1488 vptr->rx.buf_sz, PCI_DMA_FROMDEVICE);
1491 * Fill in the descriptor to match
1494 *((u32 *) & (rd->rdesc0)) = 0;
1495 rd->size = cpu_to_le16(vptr->rx.buf_sz) | RX_INTEN;
1496 rd->pa_low = cpu_to_le32(rd_info->skb_dma);
1502 static int velocity_rx_refill(struct velocity_info *vptr)
1504 int dirty = vptr->rx.dirty, done = 0;
1507 struct rx_desc *rd = vptr->rx.ring + dirty;
1509 /* Fine for an all zero Rx desc at init time as well */
1510 if (rd->rdesc0.len & OWNED_BY_NIC)
1513 if (!vptr->rx.info[dirty].skb) {
1514 if (velocity_alloc_rx_buf(vptr, dirty) < 0)
1518 dirty = (dirty < vptr->options.numrx - 1) ? dirty + 1 : 0;
1519 } while (dirty != vptr->rx.curr);
1522 vptr->rx.dirty = dirty;
1523 vptr->rx.filled += done;
1530 * velocity_free_rd_ring - free receive ring
1531 * @vptr: velocity to clean up
1533 * Free the receive buffers for each ring slot and any
1534 * attached socket buffers that need to go away.
1536 static void velocity_free_rd_ring(struct velocity_info *vptr)
1540 if (vptr->rx.info == NULL)
1543 for (i = 0; i < vptr->options.numrx; i++) {
1544 struct velocity_rd_info *rd_info = &(vptr->rx.info[i]);
1545 struct rx_desc *rd = vptr->rx.ring + i;
1547 memset(rd, 0, sizeof(*rd));
1551 pci_unmap_single(vptr->pdev, rd_info->skb_dma, vptr->rx.buf_sz,
1552 PCI_DMA_FROMDEVICE);
1553 rd_info->skb_dma = 0;
1555 dev_kfree_skb(rd_info->skb);
1556 rd_info->skb = NULL;
1559 kfree(vptr->rx.info);
1560 vptr->rx.info = NULL;
1566 * velocity_init_rd_ring - set up receive ring
1567 * @vptr: velocity to configure
1569 * Allocate and set up the receive buffers for each ring slot and
1570 * assign them to the network adapter.
1572 static int velocity_init_rd_ring(struct velocity_info *vptr)
1576 vptr->rx.info = kcalloc(vptr->options.numrx,
1577 sizeof(struct velocity_rd_info), GFP_KERNEL);
1581 velocity_init_rx_ring_indexes(vptr);
1583 if (velocity_rx_refill(vptr) != vptr->options.numrx) {
1584 VELOCITY_PRT(MSG_LEVEL_ERR, KERN_ERR
1585 "%s: failed to allocate RX buffer.\n", vptr->dev->name);
1586 velocity_free_rd_ring(vptr);
1596 * velocity_init_td_ring - set up transmit ring
1599 * Set up the transmit ring and chain the ring pointers together.
1600 * Returns zero on success or a negative posix errno code for
1603 static int velocity_init_td_ring(struct velocity_info *vptr)
1608 /* Init the TD ring entries */
1609 for (j = 0; j < vptr->tx.numq; j++) {
1610 curr = vptr->tx.pool_dma[j];
1612 vptr->tx.infos[j] = kcalloc(vptr->options.numtx,
1613 sizeof(struct velocity_td_info),
1615 if (!vptr->tx.infos[j]) {
1617 kfree(vptr->tx.infos[j]);
1621 vptr->tx.tail[j] = vptr->tx.curr[j] = vptr->tx.used[j] = 0;
1627 * velocity_free_dma_rings - free PCI ring pointers
1628 * @vptr: Velocity to free from
1630 * Clean up the PCI ring buffers allocated to this velocity.
1632 static void velocity_free_dma_rings(struct velocity_info *vptr)
1634 const int size = vptr->options.numrx * sizeof(struct rx_desc) +
1635 vptr->options.numtx * sizeof(struct tx_desc) * vptr->tx.numq;
1637 pci_free_consistent(vptr->pdev, size, vptr->rx.ring, vptr->rx.pool_dma);
1641 static int velocity_init_rings(struct velocity_info *vptr, int mtu)
1645 velocity_set_rxbufsize(vptr, mtu);
1647 ret = velocity_init_dma_rings(vptr);
1651 ret = velocity_init_rd_ring(vptr);
1653 goto err_free_dma_rings_0;
1655 ret = velocity_init_td_ring(vptr);
1657 goto err_free_rd_ring_1;
1662 velocity_free_rd_ring(vptr);
1663 err_free_dma_rings_0:
1664 velocity_free_dma_rings(vptr);
1669 * velocity_free_tx_buf - free transmit buffer
1673 * Release an transmit buffer. If the buffer was preallocated then
1674 * recycle it, if not then unmap the buffer.
1676 static void velocity_free_tx_buf(struct velocity_info *vptr, struct velocity_td_info *tdinfo)
1678 struct sk_buff *skb = tdinfo->skb;
1683 * Don't unmap the pre-allocated tx_bufs
1685 if (tdinfo->skb_dma) {
1687 pktlen = max_t(unsigned int, skb->len, ETH_ZLEN);
1688 for (i = 0; i < tdinfo->nskb_dma; i++) {
1689 pci_unmap_single(vptr->pdev, tdinfo->skb_dma[i], pktlen, PCI_DMA_TODEVICE);
1690 tdinfo->skb_dma[i] = 0;
1693 dev_kfree_skb_irq(skb);
1699 * FIXME: could we merge this with velocity_free_tx_buf ?
1701 static void velocity_free_td_ring_entry(struct velocity_info *vptr,
1704 struct velocity_td_info *td_info = &(vptr->tx.infos[q][n]);
1707 if (td_info == NULL)
1711 for (i = 0; i < td_info->nskb_dma; i++) {
1712 if (td_info->skb_dma[i]) {
1713 pci_unmap_single(vptr->pdev, td_info->skb_dma[i],
1714 td_info->skb->len, PCI_DMA_TODEVICE);
1715 td_info->skb_dma[i] = 0;
1718 dev_kfree_skb(td_info->skb);
1719 td_info->skb = NULL;
1724 * velocity_free_td_ring - free td ring
1727 * Free up the transmit ring for this particular velocity adapter.
1728 * We free the ring contents but not the ring itself.
1730 static void velocity_free_td_ring(struct velocity_info *vptr)
1734 for (j = 0; j < vptr->tx.numq; j++) {
1735 if (vptr->tx.infos[j] == NULL)
1737 for (i = 0; i < vptr->options.numtx; i++)
1738 velocity_free_td_ring_entry(vptr, j, i);
1740 kfree(vptr->tx.infos[j]);
1741 vptr->tx.infos[j] = NULL;
1746 static void velocity_free_rings(struct velocity_info *vptr)
1748 velocity_free_td_ring(vptr);
1749 velocity_free_rd_ring(vptr);
1750 velocity_free_dma_rings(vptr);
1754 * velocity_error - handle error from controller
1756 * @status: card status
1758 * Process an error report from the hardware and attempt to recover
1759 * the card itself. At the moment we cannot recover from some
1760 * theoretically impossible errors but this could be fixed using
1761 * the pci_device_failed logic to bounce the hardware
1764 static void velocity_error(struct velocity_info *vptr, int status)
1767 if (status & ISR_TXSTLI) {
1768 struct mac_regs __iomem *regs = vptr->mac_regs;
1770 printk(KERN_ERR "TD structure error TDindex=%hx\n", readw(®s->TDIdx[0]));
1771 BYTE_REG_BITS_ON(TXESR_TDSTR, ®s->TXESR);
1772 writew(TRDCSR_RUN, ®s->TDCSRClr);
1773 netif_stop_queue(vptr->dev);
1775 /* FIXME: port over the pci_device_failed code and use it
1779 if (status & ISR_SRCI) {
1780 struct mac_regs __iomem *regs = vptr->mac_regs;
1783 if (vptr->options.spd_dpx == SPD_DPX_AUTO) {
1784 vptr->mii_status = check_connection_type(regs);
1787 * If it is a 3119, disable frame bursting in
1788 * halfduplex mode and enable it in fullduplex
1791 if (vptr->rev_id < REV_ID_VT3216_A0) {
1792 if (vptr->mii_status & VELOCITY_DUPLEX_FULL)
1793 BYTE_REG_BITS_ON(TCR_TB2BDIS, ®s->TCR);
1795 BYTE_REG_BITS_OFF(TCR_TB2BDIS, ®s->TCR);
1798 * Only enable CD heart beat counter in 10HD mode
1800 if (!(vptr->mii_status & VELOCITY_DUPLEX_FULL) && (vptr->mii_status & VELOCITY_SPEED_10))
1801 BYTE_REG_BITS_OFF(TESTCFG_HBDIS, ®s->TESTCFG);
1803 BYTE_REG_BITS_ON(TESTCFG_HBDIS, ®s->TESTCFG);
1806 * Get link status from PHYSR0
1808 linked = readb(®s->PHYSR0) & PHYSR0_LINKGD;
1811 vptr->mii_status &= ~VELOCITY_LINK_FAIL;
1812 netif_carrier_on(vptr->dev);
1814 vptr->mii_status |= VELOCITY_LINK_FAIL;
1815 netif_carrier_off(vptr->dev);
1818 velocity_print_link_status(vptr);
1819 enable_flow_control_ability(vptr);
1822 * Re-enable auto-polling because SRCI will disable
1826 enable_mii_autopoll(regs);
1828 if (vptr->mii_status & VELOCITY_LINK_FAIL)
1829 netif_stop_queue(vptr->dev);
1831 netif_wake_queue(vptr->dev);
1834 if (status & ISR_MIBFI)
1835 velocity_update_hw_mibs(vptr);
1836 if (status & ISR_LSTEI)
1837 mac_rx_queue_wake(vptr->mac_regs);
1841 * tx_srv - transmit interrupt service
1845 * Scan the queues looking for transmitted packets that
1846 * we can complete and clean up. Update any statistics as
1849 static int velocity_tx_srv(struct velocity_info *vptr, u32 status)
1856 struct velocity_td_info *tdinfo;
1857 struct net_device_stats *stats = &vptr->dev->stats;
1859 for (qnum = 0; qnum < vptr->tx.numq; qnum++) {
1860 for (idx = vptr->tx.tail[qnum]; vptr->tx.used[qnum] > 0;
1861 idx = (idx + 1) % vptr->options.numtx) {
1866 td = &(vptr->tx.rings[qnum][idx]);
1867 tdinfo = &(vptr->tx.infos[qnum][idx]);
1869 if (td->tdesc0.len & OWNED_BY_NIC)
1875 if (td->tdesc0.TSR & TSR0_TERR) {
1877 stats->tx_dropped++;
1878 if (td->tdesc0.TSR & TSR0_CDH)
1879 stats->tx_heartbeat_errors++;
1880 if (td->tdesc0.TSR & TSR0_CRS)
1881 stats->tx_carrier_errors++;
1882 if (td->tdesc0.TSR & TSR0_ABT)
1883 stats->tx_aborted_errors++;
1884 if (td->tdesc0.TSR & TSR0_OWC)
1885 stats->tx_window_errors++;
1887 stats->tx_packets++;
1888 stats->tx_bytes += tdinfo->skb->len;
1890 velocity_free_tx_buf(vptr, tdinfo);
1891 vptr->tx.used[qnum]--;
1893 vptr->tx.tail[qnum] = idx;
1895 if (AVAIL_TD(vptr, qnum) < 1)
1899 * Look to see if we should kick the transmit network
1900 * layer for more work.
1902 if (netif_queue_stopped(vptr->dev) && (full == 0)
1903 && (!(vptr->mii_status & VELOCITY_LINK_FAIL))) {
1904 netif_wake_queue(vptr->dev);
1910 * velocity_rx_csum - checksum process
1911 * @rd: receive packet descriptor
1912 * @skb: network layer packet buffer
1914 * Process the status bits for the received packet and determine
1915 * if the checksum was computed and verified by the hardware
1917 static inline void velocity_rx_csum(struct rx_desc *rd, struct sk_buff *skb)
1919 skb->ip_summed = CHECKSUM_NONE;
1921 if (rd->rdesc1.CSM & CSM_IPKT) {
1922 if (rd->rdesc1.CSM & CSM_IPOK) {
1923 if ((rd->rdesc1.CSM & CSM_TCPKT) ||
1924 (rd->rdesc1.CSM & CSM_UDPKT)) {
1925 if (!(rd->rdesc1.CSM & CSM_TUPOK))
1928 skb->ip_summed = CHECKSUM_UNNECESSARY;
1934 * velocity_rx_copy - in place Rx copy for small packets
1935 * @rx_skb: network layer packet buffer candidate
1936 * @pkt_size: received data size
1937 * @rd: receive packet descriptor
1938 * @dev: network device
1940 * Replace the current skb that is scheduled for Rx processing by a
1941 * shorter, immediatly allocated skb, if the received packet is small
1942 * enough. This function returns a negative value if the received
1943 * packet is too big or if memory is exhausted.
1945 static int velocity_rx_copy(struct sk_buff **rx_skb, int pkt_size,
1946 struct velocity_info *vptr)
1949 if (pkt_size < rx_copybreak) {
1950 struct sk_buff *new_skb;
1952 new_skb = netdev_alloc_skb_ip_align(vptr->dev, pkt_size);
1954 new_skb->ip_summed = rx_skb[0]->ip_summed;
1955 skb_copy_from_linear_data(*rx_skb, new_skb->data, pkt_size);
1965 * velocity_iph_realign - IP header alignment
1966 * @vptr: velocity we are handling
1967 * @skb: network layer packet buffer
1968 * @pkt_size: received data size
1970 * Align IP header on a 2 bytes boundary. This behavior can be
1971 * configured by the user.
1973 static inline void velocity_iph_realign(struct velocity_info *vptr,
1974 struct sk_buff *skb, int pkt_size)
1976 if (vptr->flags & VELOCITY_FLAGS_IP_ALIGN) {
1977 memmove(skb->data + 2, skb->data, pkt_size);
1978 skb_reserve(skb, 2);
1984 * velocity_receive_frame - received packet processor
1985 * @vptr: velocity we are handling
1988 * A packet has arrived. We process the packet and if appropriate
1989 * pass the frame up the network stack
1991 static int velocity_receive_frame(struct velocity_info *vptr, int idx)
1993 void (*pci_action)(struct pci_dev *, dma_addr_t, size_t, int);
1994 struct net_device_stats *stats = &vptr->dev->stats;
1995 struct velocity_rd_info *rd_info = &(vptr->rx.info[idx]);
1996 struct rx_desc *rd = &(vptr->rx.ring[idx]);
1997 int pkt_len = le16_to_cpu(rd->rdesc0.len) & 0x3fff;
1998 struct sk_buff *skb;
2000 if (rd->rdesc0.RSR & (RSR_STP | RSR_EDP)) {
2001 VELOCITY_PRT(MSG_LEVEL_VERBOSE, KERN_ERR " %s : the received frame span multple RDs.\n", vptr->dev->name);
2002 stats->rx_length_errors++;
2006 if (rd->rdesc0.RSR & RSR_MAR)
2011 pci_dma_sync_single_for_cpu(vptr->pdev, rd_info->skb_dma,
2012 vptr->rx.buf_sz, PCI_DMA_FROMDEVICE);
2015 * Drop frame not meeting IEEE 802.3
2018 if (vptr->flags & VELOCITY_FLAGS_VAL_PKT_LEN) {
2019 if (rd->rdesc0.RSR & RSR_RL) {
2020 stats->rx_length_errors++;
2025 pci_action = pci_dma_sync_single_for_device;
2027 velocity_rx_csum(rd, skb);
2029 if (velocity_rx_copy(&skb, pkt_len, vptr) < 0) {
2030 velocity_iph_realign(vptr, skb, pkt_len);
2031 pci_action = pci_unmap_single;
2032 rd_info->skb = NULL;
2035 pci_action(vptr->pdev, rd_info->skb_dma, vptr->rx.buf_sz,
2036 PCI_DMA_FROMDEVICE);
2038 skb_put(skb, pkt_len - 4);
2039 skb->protocol = eth_type_trans(skb, vptr->dev);
2041 if (vptr->vlgrp && (rd->rdesc0.RSR & RSR_DETAG)) {
2042 vlan_hwaccel_rx(skb, vptr->vlgrp,
2043 swab16(le16_to_cpu(rd->rdesc1.PQTAG)));
2047 stats->rx_bytes += pkt_len;
2054 * velocity_rx_srv - service RX interrupt
2056 * @status: adapter status (unused)
2058 * Walk the receive ring of the velocity adapter and remove
2059 * any received packets from the receive queue. Hand the ring
2060 * slots back to the adapter for reuse.
2062 static int velocity_rx_srv(struct velocity_info *vptr, int status)
2064 struct net_device_stats *stats = &vptr->dev->stats;
2065 int rd_curr = vptr->rx.curr;
2069 struct rx_desc *rd = vptr->rx.ring + rd_curr;
2071 if (!vptr->rx.info[rd_curr].skb)
2074 if (rd->rdesc0.len & OWNED_BY_NIC)
2080 * Don't drop CE or RL error frame although RXOK is off
2082 if (rd->rdesc0.RSR & (RSR_RXOK | RSR_CE | RSR_RL)) {
2083 if (velocity_receive_frame(vptr, rd_curr) < 0)
2084 stats->rx_dropped++;
2086 if (rd->rdesc0.RSR & RSR_CRC)
2087 stats->rx_crc_errors++;
2088 if (rd->rdesc0.RSR & RSR_FAE)
2089 stats->rx_frame_errors++;
2091 stats->rx_dropped++;
2094 rd->size |= RX_INTEN;
2097 if (rd_curr >= vptr->options.numrx)
2099 } while (++works <= 15);
2101 vptr->rx.curr = rd_curr;
2103 if ((works > 0) && (velocity_rx_refill(vptr) > 0))
2104 velocity_give_many_rx_descs(vptr);
2112 * velocity_intr - interrupt callback
2113 * @irq: interrupt number
2114 * @dev_instance: interrupting device
2116 * Called whenever an interrupt is generated by the velocity
2117 * adapter IRQ line. We may not be the source of the interrupt
2118 * and need to identify initially if we are, and if not exit as
2119 * efficiently as possible.
2121 static irqreturn_t velocity_intr(int irq, void *dev_instance)
2123 struct net_device *dev = dev_instance;
2124 struct velocity_info *vptr = netdev_priv(dev);
2129 spin_lock(&vptr->lock);
2130 isr_status = mac_read_isr(vptr->mac_regs);
2133 if (isr_status == 0) {
2134 spin_unlock(&vptr->lock);
2138 mac_disable_int(vptr->mac_regs);
2141 * Keep processing the ISR until we have completed
2142 * processing and the isr_status becomes zero
2145 while (isr_status != 0) {
2146 mac_write_isr(vptr->mac_regs, isr_status);
2147 if (isr_status & (~(ISR_PRXI | ISR_PPRXI | ISR_PTXI | ISR_PPTXI)))
2148 velocity_error(vptr, isr_status);
2149 if (isr_status & (ISR_PRXI | ISR_PPRXI))
2150 max_count += velocity_rx_srv(vptr, isr_status);
2151 if (isr_status & (ISR_PTXI | ISR_PPTXI))
2152 max_count += velocity_tx_srv(vptr, isr_status);
2153 isr_status = mac_read_isr(vptr->mac_regs);
2154 if (max_count > vptr->options.int_works) {
2155 printk(KERN_WARNING "%s: excessive work at interrupt.\n",
2160 spin_unlock(&vptr->lock);
2161 mac_enable_int(vptr->mac_regs);
2167 * velocity_open - interface activation callback
2168 * @dev: network layer device to open
2170 * Called when the network layer brings the interface up. Returns
2171 * a negative posix error code on failure, or zero on success.
2173 * All the ring allocation and set up is done on open for this
2174 * adapter to minimise memory usage when inactive
2176 static int velocity_open(struct net_device *dev)
2178 struct velocity_info *vptr = netdev_priv(dev);
2181 ret = velocity_init_rings(vptr, dev->mtu);
2185 /* Ensure chip is running */
2186 pci_set_power_state(vptr->pdev, PCI_D0);
2188 velocity_give_many_rx_descs(vptr);
2190 velocity_init_registers(vptr, VELOCITY_INIT_COLD);
2192 ret = request_irq(vptr->pdev->irq, &velocity_intr, IRQF_SHARED,
2195 /* Power down the chip */
2196 pci_set_power_state(vptr->pdev, PCI_D3hot);
2197 velocity_free_rings(vptr);
2201 mac_enable_int(vptr->mac_regs);
2202 netif_start_queue(dev);
2203 vptr->flags |= VELOCITY_FLAGS_OPENED;
2209 * velocity_shutdown - shut down the chip
2210 * @vptr: velocity to deactivate
2212 * Shuts down the internal operations of the velocity and
2213 * disables interrupts, autopolling, transmit and receive
2215 static void velocity_shutdown(struct velocity_info *vptr)
2217 struct mac_regs __iomem *regs = vptr->mac_regs;
2218 mac_disable_int(regs);
2219 writel(CR0_STOP, ®s->CR0Set);
2220 writew(0xFFFF, ®s->TDCSRClr);
2221 writeb(0xFF, ®s->RDCSRClr);
2222 safe_disable_mii_autopoll(regs);
2223 mac_clear_isr(regs);
2227 * velocity_change_mtu - MTU change callback
2228 * @dev: network device
2229 * @new_mtu: desired MTU
2231 * Handle requests from the networking layer for MTU change on
2232 * this interface. It gets called on a change by the network layer.
2233 * Return zero for success or negative posix error code.
2235 static int velocity_change_mtu(struct net_device *dev, int new_mtu)
2237 struct velocity_info *vptr = netdev_priv(dev);
2240 if ((new_mtu < VELOCITY_MIN_MTU) || new_mtu > (VELOCITY_MAX_MTU)) {
2241 VELOCITY_PRT(MSG_LEVEL_ERR, KERN_NOTICE "%s: Invalid MTU.\n",
2247 if (!netif_running(dev)) {
2252 if (dev->mtu != new_mtu) {
2253 struct velocity_info *tmp_vptr;
2254 unsigned long flags;
2258 tmp_vptr = kzalloc(sizeof(*tmp_vptr), GFP_KERNEL);
2264 tmp_vptr->dev = dev;
2265 tmp_vptr->pdev = vptr->pdev;
2266 tmp_vptr->options = vptr->options;
2267 tmp_vptr->tx.numq = vptr->tx.numq;
2269 ret = velocity_init_rings(tmp_vptr, new_mtu);
2271 goto out_free_tmp_vptr_1;
2273 spin_lock_irqsave(&vptr->lock, flags);
2275 netif_stop_queue(dev);
2276 velocity_shutdown(vptr);
2281 vptr->rx = tmp_vptr->rx;
2282 vptr->tx = tmp_vptr->tx;
2289 velocity_give_many_rx_descs(vptr);
2291 velocity_init_registers(vptr, VELOCITY_INIT_COLD);
2293 mac_enable_int(vptr->mac_regs);
2294 netif_start_queue(dev);
2296 spin_unlock_irqrestore(&vptr->lock, flags);
2298 velocity_free_rings(tmp_vptr);
2300 out_free_tmp_vptr_1:
2308 * velocity_mii_ioctl - MII ioctl handler
2309 * @dev: network device
2310 * @ifr: the ifreq block for the ioctl
2313 * Process MII requests made via ioctl from the network layer. These
2314 * are used by tools like kudzu to interrogate the link state of the
2317 static int velocity_mii_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
2319 struct velocity_info *vptr = netdev_priv(dev);
2320 struct mac_regs __iomem *regs = vptr->mac_regs;
2321 unsigned long flags;
2322 struct mii_ioctl_data *miidata = if_mii(ifr);
2327 miidata->phy_id = readb(®s->MIIADR) & 0x1f;
2330 if (velocity_mii_read(vptr->mac_regs, miidata->reg_num & 0x1f, &(miidata->val_out)) < 0)
2334 spin_lock_irqsave(&vptr->lock, flags);
2335 err = velocity_mii_write(vptr->mac_regs, miidata->reg_num & 0x1f, miidata->val_in);
2336 spin_unlock_irqrestore(&vptr->lock, flags);
2337 check_connection_type(vptr->mac_regs);
2349 * velocity_ioctl - ioctl entry point
2350 * @dev: network device
2351 * @rq: interface request ioctl
2352 * @cmd: command code
2354 * Called when the user issues an ioctl request to the network
2355 * device in question. The velocity interface supports MII.
2357 static int velocity_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
2359 struct velocity_info *vptr = netdev_priv(dev);
2362 /* If we are asked for information and the device is power
2363 saving then we need to bring the device back up to talk to it */
2365 if (!netif_running(dev))
2366 pci_set_power_state(vptr->pdev, PCI_D0);
2369 case SIOCGMIIPHY: /* Get address of MII PHY in use. */
2370 case SIOCGMIIREG: /* Read MII PHY register. */
2371 case SIOCSMIIREG: /* Write to MII PHY register. */
2372 ret = velocity_mii_ioctl(dev, rq, cmd);
2378 if (!netif_running(dev))
2379 pci_set_power_state(vptr->pdev, PCI_D3hot);
2386 * velocity_get_status - statistics callback
2387 * @dev: network device
2389 * Callback from the network layer to allow driver statistics
2390 * to be resynchronized with hardware collected state. In the
2391 * case of the velocity we need to pull the MIB counters from
2392 * the hardware into the counters before letting the network
2393 * layer display them.
2395 static struct net_device_stats *velocity_get_stats(struct net_device *dev)
2397 struct velocity_info *vptr = netdev_priv(dev);
2399 /* If the hardware is down, don't touch MII */
2400 if (!netif_running(dev))
2403 spin_lock_irq(&vptr->lock);
2404 velocity_update_hw_mibs(vptr);
2405 spin_unlock_irq(&vptr->lock);
2407 dev->stats.rx_packets = vptr->mib_counter[HW_MIB_ifRxAllPkts];
2408 dev->stats.rx_errors = vptr->mib_counter[HW_MIB_ifRxErrorPkts];
2409 dev->stats.rx_length_errors = vptr->mib_counter[HW_MIB_ifInRangeLengthErrors];
2411 // unsigned long rx_dropped; /* no space in linux buffers */
2412 dev->stats.collisions = vptr->mib_counter[HW_MIB_ifTxEtherCollisions];
2413 /* detailed rx_errors: */
2414 // unsigned long rx_length_errors;
2415 // unsigned long rx_over_errors; /* receiver ring buff overflow */
2416 dev->stats.rx_crc_errors = vptr->mib_counter[HW_MIB_ifRxPktCRCE];
2417 // unsigned long rx_frame_errors; /* recv'd frame alignment error */
2418 // unsigned long rx_fifo_errors; /* recv'r fifo overrun */
2419 // unsigned long rx_missed_errors; /* receiver missed packet */
2421 /* detailed tx_errors */
2422 // unsigned long tx_fifo_errors;
2428 * velocity_close - close adapter callback
2429 * @dev: network device
2431 * Callback from the network layer when the velocity is being
2432 * deactivated by the network layer
2434 static int velocity_close(struct net_device *dev)
2436 struct velocity_info *vptr = netdev_priv(dev);
2438 netif_stop_queue(dev);
2439 velocity_shutdown(vptr);
2441 if (vptr->flags & VELOCITY_FLAGS_WOL_ENABLED)
2442 velocity_get_ip(vptr);
2444 free_irq(dev->irq, dev);
2446 /* Power down the chip */
2447 pci_set_power_state(vptr->pdev, PCI_D3hot);
2449 velocity_free_rings(vptr);
2451 vptr->flags &= (~VELOCITY_FLAGS_OPENED);
2456 * velocity_xmit - transmit packet callback
2457 * @skb: buffer to transmit
2458 * @dev: network device
2460 * Called by the networ layer to request a packet is queued to
2461 * the velocity. Returns zero on success.
2463 static netdev_tx_t velocity_xmit(struct sk_buff *skb,
2464 struct net_device *dev)
2466 struct velocity_info *vptr = netdev_priv(dev);
2468 struct tx_desc *td_ptr;
2469 struct velocity_td_info *tdinfo;
2470 unsigned long flags;
2475 if (skb_padto(skb, ETH_ZLEN))
2477 pktlen = max_t(unsigned int, skb->len, ETH_ZLEN);
2479 len = cpu_to_le16(pktlen);
2481 spin_lock_irqsave(&vptr->lock, flags);
2483 index = vptr->tx.curr[qnum];
2484 td_ptr = &(vptr->tx.rings[qnum][index]);
2485 tdinfo = &(vptr->tx.infos[qnum][index]);
2487 td_ptr->tdesc1.TCR = TCR0_TIC;
2488 td_ptr->td_buf[0].size &= ~TD_QUEUE;
2491 * Map the linear network buffer into PCI space and
2492 * add it to the transmit ring.
2495 tdinfo->skb_dma[0] = pci_map_single(vptr->pdev, skb->data, pktlen, PCI_DMA_TODEVICE);
2496 td_ptr->tdesc0.len = len;
2497 td_ptr->td_buf[0].pa_low = cpu_to_le32(tdinfo->skb_dma[0]);
2498 td_ptr->td_buf[0].pa_high = 0;
2499 td_ptr->td_buf[0].size = len;
2500 tdinfo->nskb_dma = 1;
2502 td_ptr->tdesc1.cmd = TCPLS_NORMAL + (tdinfo->nskb_dma + 1) * 16;
2504 if (vptr->vlgrp && vlan_tx_tag_present(skb)) {
2505 td_ptr->tdesc1.vlan = cpu_to_le16(vlan_tx_tag_get(skb));
2506 td_ptr->tdesc1.TCR |= TCR0_VETAG;
2510 * Handle hardware checksum
2512 if ((vptr->flags & VELOCITY_FLAGS_TX_CSUM)
2513 && (skb->ip_summed == CHECKSUM_PARTIAL)) {
2514 const struct iphdr *ip = ip_hdr(skb);
2515 if (ip->protocol == IPPROTO_TCP)
2516 td_ptr->tdesc1.TCR |= TCR0_TCPCK;
2517 else if (ip->protocol == IPPROTO_UDP)
2518 td_ptr->tdesc1.TCR |= (TCR0_UDPCK);
2519 td_ptr->tdesc1.TCR |= TCR0_IPCK;
2523 int prev = index - 1;
2526 prev = vptr->options.numtx - 1;
2527 td_ptr->tdesc0.len |= OWNED_BY_NIC;
2528 vptr->tx.used[qnum]++;
2529 vptr->tx.curr[qnum] = (index + 1) % vptr->options.numtx;
2531 if (AVAIL_TD(vptr, qnum) < 1)
2532 netif_stop_queue(dev);
2534 td_ptr = &(vptr->tx.rings[qnum][prev]);
2535 td_ptr->td_buf[0].size |= TD_QUEUE;
2536 mac_tx_queue_wake(vptr->mac_regs, qnum);
2538 dev->trans_start = jiffies;
2539 spin_unlock_irqrestore(&vptr->lock, flags);
2541 return NETDEV_TX_OK;
2545 static const struct net_device_ops velocity_netdev_ops = {
2546 .ndo_open = velocity_open,
2547 .ndo_stop = velocity_close,
2548 .ndo_start_xmit = velocity_xmit,
2549 .ndo_get_stats = velocity_get_stats,
2550 .ndo_validate_addr = eth_validate_addr,
2551 .ndo_set_mac_address = eth_mac_addr,
2552 .ndo_set_multicast_list = velocity_set_multi,
2553 .ndo_change_mtu = velocity_change_mtu,
2554 .ndo_do_ioctl = velocity_ioctl,
2555 .ndo_vlan_rx_add_vid = velocity_vlan_rx_add_vid,
2556 .ndo_vlan_rx_kill_vid = velocity_vlan_rx_kill_vid,
2557 .ndo_vlan_rx_register = velocity_vlan_rx_register,
2561 * velocity_init_info - init private data
2563 * @vptr: Velocity info
2566 * Set up the initial velocity_info struct for the device that has been
2569 static void __devinit velocity_init_info(struct pci_dev *pdev,
2570 struct velocity_info *vptr,
2571 const struct velocity_info_tbl *info)
2573 memset(vptr, 0, sizeof(struct velocity_info));
2576 vptr->chip_id = info->chip_id;
2577 vptr->tx.numq = info->txqueue;
2578 vptr->multicast_limit = MCAM_SIZE;
2579 spin_lock_init(&vptr->lock);
2580 INIT_LIST_HEAD(&vptr->list);
2584 * velocity_get_pci_info - retrieve PCI info for device
2585 * @vptr: velocity device
2586 * @pdev: PCI device it matches
2588 * Retrieve the PCI configuration space data that interests us from
2589 * the kernel PCI layer
2591 static int __devinit velocity_get_pci_info(struct velocity_info *vptr, struct pci_dev *pdev)
2593 vptr->rev_id = pdev->revision;
2595 pci_set_master(pdev);
2597 vptr->ioaddr = pci_resource_start(pdev, 0);
2598 vptr->memaddr = pci_resource_start(pdev, 1);
2600 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_IO)) {
2602 "region #0 is not an I/O resource, aborting.\n");
2606 if ((pci_resource_flags(pdev, 1) & IORESOURCE_IO)) {
2608 "region #1 is an I/O resource, aborting.\n");
2612 if (pci_resource_len(pdev, 1) < VELOCITY_IO_SIZE) {
2613 dev_err(&pdev->dev, "region #1 is too small.\n");
2622 * velocity_print_info - per driver data
2625 * Print per driver data as the kernel driver finds Velocity
2628 static void __devinit velocity_print_info(struct velocity_info *vptr)
2630 struct net_device *dev = vptr->dev;
2632 printk(KERN_INFO "%s: %s\n", dev->name, get_chip_name(vptr->chip_id));
2633 printk(KERN_INFO "%s: Ethernet Address: %2.2X:%2.2X:%2.2X:%2.2X:%2.2X:%2.2X\n",
2635 dev->dev_addr[0], dev->dev_addr[1], dev->dev_addr[2],
2636 dev->dev_addr[3], dev->dev_addr[4], dev->dev_addr[5]);
2639 static u32 velocity_get_link(struct net_device *dev)
2641 struct velocity_info *vptr = netdev_priv(dev);
2642 struct mac_regs __iomem *regs = vptr->mac_regs;
2643 return BYTE_REG_BITS_IS_ON(PHYSR0_LINKGD, ®s->PHYSR0) ? 1 : 0;
2648 * velocity_found1 - set up discovered velocity card
2650 * @ent: PCI device table entry that matched
2652 * Configure a discovered adapter from scratch. Return a negative
2653 * errno error code on failure paths.
2655 static int __devinit velocity_found1(struct pci_dev *pdev, const struct pci_device_id *ent)
2657 static int first = 1;
2658 struct net_device *dev;
2660 const char *drv_string;
2661 const struct velocity_info_tbl *info = &chip_info_table[ent->driver_data];
2662 struct velocity_info *vptr;
2663 struct mac_regs __iomem *regs;
2666 /* FIXME: this driver, like almost all other ethernet drivers,
2667 * can support more than MAX_UNITS.
2669 if (velocity_nics >= MAX_UNITS) {
2670 dev_notice(&pdev->dev, "already found %d NICs.\n",
2675 dev = alloc_etherdev(sizeof(struct velocity_info));
2677 dev_err(&pdev->dev, "allocate net device failed.\n");
2681 /* Chain it all together */
2683 SET_NETDEV_DEV(dev, &pdev->dev);
2684 vptr = netdev_priv(dev);
2688 printk(KERN_INFO "%s Ver. %s\n",
2689 VELOCITY_FULL_DRV_NAM, VELOCITY_VERSION);
2690 printk(KERN_INFO "Copyright (c) 2002, 2003 VIA Networking Technologies, Inc.\n");
2691 printk(KERN_INFO "Copyright (c) 2004 Red Hat Inc.\n");
2695 velocity_init_info(pdev, vptr, info);
2699 dev->irq = pdev->irq;
2701 ret = pci_enable_device(pdev);
2705 ret = velocity_get_pci_info(vptr, pdev);
2707 /* error message already printed */
2711 ret = pci_request_regions(pdev, VELOCITY_NAME);
2713 dev_err(&pdev->dev, "No PCI resources.\n");
2717 regs = ioremap(vptr->memaddr, VELOCITY_IO_SIZE);
2720 goto err_release_res;
2723 vptr->mac_regs = regs;
2725 mac_wol_reset(regs);
2727 dev->base_addr = vptr->ioaddr;
2729 for (i = 0; i < 6; i++)
2730 dev->dev_addr[i] = readb(®s->PAR[i]);
2733 drv_string = dev_driver_string(&pdev->dev);
2735 velocity_get_options(&vptr->options, velocity_nics, drv_string);
2738 * Mask out the options cannot be set to the chip
2741 vptr->options.flags &= info->flags;
2744 * Enable the chip specified capbilities
2747 vptr->flags = vptr->options.flags | (info->flags & 0xFF000000UL);
2749 vptr->wol_opts = vptr->options.wol_opts;
2750 vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED;
2752 vptr->phy_id = MII_GET_PHY_ID(vptr->mac_regs);
2754 dev->irq = pdev->irq;
2755 dev->netdev_ops = &velocity_netdev_ops;
2756 dev->ethtool_ops = &velocity_ethtool_ops;
2758 dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_FILTER |
2761 if (vptr->flags & VELOCITY_FLAGS_TX_CSUM)
2762 dev->features |= NETIF_F_IP_CSUM;
2764 ret = register_netdev(dev);
2768 if (!velocity_get_link(dev)) {
2769 netif_carrier_off(dev);
2770 vptr->mii_status |= VELOCITY_LINK_FAIL;
2773 velocity_print_info(vptr);
2774 pci_set_drvdata(pdev, dev);
2776 /* and leave the chip powered down */
2778 pci_set_power_state(pdev, PCI_D3hot);
2781 unsigned long flags;
2783 spin_lock_irqsave(&velocity_dev_list_lock, flags);
2784 list_add(&vptr->list, &velocity_dev_list);
2785 spin_unlock_irqrestore(&velocity_dev_list_lock, flags);
2795 pci_release_regions(pdev);
2797 pci_disable_device(pdev);
2806 * wol_calc_crc - WOL CRC
2807 * @pattern: data pattern
2808 * @mask_pattern: mask
2810 * Compute the wake on lan crc hashes for the packet header
2811 * we are interested in.
2813 static u16 wol_calc_crc(int size, u8 *pattern, u8 *mask_pattern)
2819 for (i = 0; i < size; i++) {
2820 mask = mask_pattern[i];
2822 /* Skip this loop if the mask equals to zero */
2826 for (j = 0; j < 8; j++) {
2827 if ((mask & 0x01) == 0) {
2832 crc = crc_ccitt(crc, &(pattern[i * 8 + j]), 1);
2835 /* Finally, invert the result once to get the correct data */
2837 return bitrev32(crc) >> 16;
2841 * velocity_set_wol - set up for wake on lan
2842 * @vptr: velocity to set WOL status on
2844 * Set a card up for wake on lan either by unicast or by
2847 * FIXME: check static buffer is safe here
2849 static int velocity_set_wol(struct velocity_info *vptr)
2851 struct mac_regs __iomem *regs = vptr->mac_regs;
2855 static u32 mask_pattern[2][4] = {
2856 {0x00203000, 0x000003C0, 0x00000000, 0x0000000}, /* ARP */
2857 {0xfffff000, 0xffffffff, 0xffffffff, 0x000ffff} /* Magic Packet */
2860 writew(0xFFFF, ®s->WOLCRClr);
2861 writeb(WOLCFG_SAB | WOLCFG_SAM, ®s->WOLCFGSet);
2862 writew(WOLCR_MAGIC_EN, ®s->WOLCRSet);
2865 if (vptr->wol_opts & VELOCITY_WOL_PHY)
2866 writew((WOLCR_LINKON_EN|WOLCR_LINKOFF_EN), ®s->WOLCRSet);
2869 if (vptr->wol_opts & VELOCITY_WOL_UCAST)
2870 writew(WOLCR_UNICAST_EN, ®s->WOLCRSet);
2872 if (vptr->wol_opts & VELOCITY_WOL_ARP) {
2873 struct arp_packet *arp = (struct arp_packet *) buf;
2875 memset(buf, 0, sizeof(struct arp_packet) + 7);
2877 for (i = 0; i < 4; i++)
2878 writel(mask_pattern[0][i], ®s->ByteMask[0][i]);
2880 arp->type = htons(ETH_P_ARP);
2881 arp->ar_op = htons(1);
2883 memcpy(arp->ar_tip, vptr->ip_addr, 4);
2885 crc = wol_calc_crc((sizeof(struct arp_packet) + 7) / 8, buf,
2886 (u8 *) & mask_pattern[0][0]);
2888 writew(crc, ®s->PatternCRC[0]);
2889 writew(WOLCR_ARP_EN, ®s->WOLCRSet);
2892 BYTE_REG_BITS_ON(PWCFG_WOLTYPE, ®s->PWCFGSet);
2893 BYTE_REG_BITS_ON(PWCFG_LEGACY_WOLEN, ®s->PWCFGSet);
2895 writew(0x0FFF, ®s->WOLSRClr);
2897 if (vptr->mii_status & VELOCITY_AUTONEG_ENABLE) {
2898 if (PHYID_GET_PHY_ID(vptr->phy_id) == PHYID_CICADA_CS8201)
2899 MII_REG_BITS_ON(AUXCR_MDPPS, MII_REG_AUXCR, vptr->mac_regs);
2901 MII_REG_BITS_OFF(G1000CR_1000FD | G1000CR_1000, MII_REG_G1000CR, vptr->mac_regs);
2904 if (vptr->mii_status & VELOCITY_SPEED_1000)
2905 MII_REG_BITS_ON(BMCR_REAUTO, MII_REG_BMCR, vptr->mac_regs);
2907 BYTE_REG_BITS_ON(CHIPGCR_FCMODE, ®s->CHIPGCR);
2911 GCR = readb(®s->CHIPGCR);
2912 GCR = (GCR & ~CHIPGCR_FCGMII) | CHIPGCR_FCFDX;
2913 writeb(GCR, ®s->CHIPGCR);
2916 BYTE_REG_BITS_OFF(ISR_PWEI, ®s->ISR);
2917 /* Turn on SWPTAG just before entering power mode */
2918 BYTE_REG_BITS_ON(STICKHW_SWPTAG, ®s->STICKHW);
2919 /* Go to bed ..... */
2920 BYTE_REG_BITS_ON((STICKHW_DS1 | STICKHW_DS0), ®s->STICKHW);
2926 * velocity_save_context - save registers
2928 * @context: buffer for stored context
2930 * Retrieve the current configuration from the velocity hardware
2931 * and stash it in the context structure, for use by the context
2932 * restore functions. This allows us to save things we need across
2935 static void velocity_save_context(struct velocity_info *vptr, struct velocity_context *context)
2937 struct mac_regs __iomem *regs = vptr->mac_regs;
2939 u8 __iomem *ptr = (u8 __iomem *)regs;
2941 for (i = MAC_REG_PAR; i < MAC_REG_CR0_CLR; i += 4)
2942 *((u32 *) (context->mac_reg + i)) = readl(ptr + i);
2944 for (i = MAC_REG_MAR; i < MAC_REG_TDCSR_CLR; i += 4)
2945 *((u32 *) (context->mac_reg + i)) = readl(ptr + i);
2947 for (i = MAC_REG_RDBASE_LO; i < MAC_REG_FIFO_TEST0; i += 4)
2948 *((u32 *) (context->mac_reg + i)) = readl(ptr + i);
2952 static int velocity_suspend(struct pci_dev *pdev, pm_message_t state)
2954 struct net_device *dev = pci_get_drvdata(pdev);
2955 struct velocity_info *vptr = netdev_priv(dev);
2956 unsigned long flags;
2958 if (!netif_running(vptr->dev))
2961 netif_device_detach(vptr->dev);
2963 spin_lock_irqsave(&vptr->lock, flags);
2964 pci_save_state(pdev);
2966 if (vptr->flags & VELOCITY_FLAGS_WOL_ENABLED) {
2967 velocity_get_ip(vptr);
2968 velocity_save_context(vptr, &vptr->context);
2969 velocity_shutdown(vptr);
2970 velocity_set_wol(vptr);
2971 pci_enable_wake(pdev, PCI_D3hot, 1);
2972 pci_set_power_state(pdev, PCI_D3hot);
2974 velocity_save_context(vptr, &vptr->context);
2975 velocity_shutdown(vptr);
2976 pci_disable_device(pdev);
2977 pci_set_power_state(pdev, pci_choose_state(pdev, state));
2980 pci_set_power_state(pdev, pci_choose_state(pdev, state));
2982 spin_unlock_irqrestore(&vptr->lock, flags);
2987 * velocity_restore_context - restore registers
2989 * @context: buffer for stored context
2991 * Reload the register configuration from the velocity context
2992 * created by velocity_save_context.
2994 static void velocity_restore_context(struct velocity_info *vptr, struct velocity_context *context)
2996 struct mac_regs __iomem *regs = vptr->mac_regs;
2998 u8 __iomem *ptr = (u8 __iomem *)regs;
3000 for (i = MAC_REG_PAR; i < MAC_REG_CR0_SET; i += 4)
3001 writel(*((u32 *) (context->mac_reg + i)), ptr + i);
3004 for (i = MAC_REG_CR1_SET; i < MAC_REG_CR0_CLR; i++) {
3006 writeb(~(*((u8 *) (context->mac_reg + i))), ptr + i + 4);
3008 writeb(*((u8 *) (context->mac_reg + i)), ptr + i);
3011 for (i = MAC_REG_MAR; i < MAC_REG_IMR; i += 4)
3012 writel(*((u32 *) (context->mac_reg + i)), ptr + i);
3014 for (i = MAC_REG_RDBASE_LO; i < MAC_REG_FIFO_TEST0; i += 4)
3015 writel(*((u32 *) (context->mac_reg + i)), ptr + i);
3017 for (i = MAC_REG_TDCSR_SET; i <= MAC_REG_RDCSR_SET; i++)
3018 writeb(*((u8 *) (context->mac_reg + i)), ptr + i);
3021 static int velocity_resume(struct pci_dev *pdev)
3023 struct net_device *dev = pci_get_drvdata(pdev);
3024 struct velocity_info *vptr = netdev_priv(dev);
3025 unsigned long flags;
3028 if (!netif_running(vptr->dev))
3031 pci_set_power_state(pdev, PCI_D0);
3032 pci_enable_wake(pdev, 0, 0);
3033 pci_restore_state(pdev);
3035 mac_wol_reset(vptr->mac_regs);
3037 spin_lock_irqsave(&vptr->lock, flags);
3038 velocity_restore_context(vptr, &vptr->context);
3039 velocity_init_registers(vptr, VELOCITY_INIT_WOL);
3040 mac_disable_int(vptr->mac_regs);
3042 velocity_tx_srv(vptr, 0);
3044 for (i = 0; i < vptr->tx.numq; i++) {
3045 if (vptr->tx.used[i])
3046 mac_tx_queue_wake(vptr->mac_regs, i);
3049 mac_enable_int(vptr->mac_regs);
3050 spin_unlock_irqrestore(&vptr->lock, flags);
3051 netif_device_attach(vptr->dev);
3058 * Definition for our device driver. The PCI layer interface
3059 * uses this to handle all our card discover and plugging
3061 static struct pci_driver velocity_driver = {
3062 .name = VELOCITY_NAME,
3063 .id_table = velocity_id_table,
3064 .probe = velocity_found1,
3065 .remove = __devexit_p(velocity_remove1),
3067 .suspend = velocity_suspend,
3068 .resume = velocity_resume,
3074 * velocity_ethtool_up - pre hook for ethtool
3075 * @dev: network device
3077 * Called before an ethtool operation. We need to make sure the
3078 * chip is out of D3 state before we poke at it.
3080 static int velocity_ethtool_up(struct net_device *dev)
3082 struct velocity_info *vptr = netdev_priv(dev);
3083 if (!netif_running(dev))
3084 pci_set_power_state(vptr->pdev, PCI_D0);
3089 * velocity_ethtool_down - post hook for ethtool
3090 * @dev: network device
3092 * Called after an ethtool operation. Restore the chip back to D3
3093 * state if it isn't running.
3095 static void velocity_ethtool_down(struct net_device *dev)
3097 struct velocity_info *vptr = netdev_priv(dev);
3098 if (!netif_running(dev))
3099 pci_set_power_state(vptr->pdev, PCI_D3hot);
3102 static int velocity_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
3104 struct velocity_info *vptr = netdev_priv(dev);
3105 struct mac_regs __iomem *regs = vptr->mac_regs;
3107 status = check_connection_type(vptr->mac_regs);
3109 cmd->supported = SUPPORTED_TP |
3111 SUPPORTED_10baseT_Half |
3112 SUPPORTED_10baseT_Full |
3113 SUPPORTED_100baseT_Half |
3114 SUPPORTED_100baseT_Full |
3115 SUPPORTED_1000baseT_Half |
3116 SUPPORTED_1000baseT_Full;
3117 if (status & VELOCITY_SPEED_1000)
3118 cmd->speed = SPEED_1000;
3119 else if (status & VELOCITY_SPEED_100)
3120 cmd->speed = SPEED_100;
3122 cmd->speed = SPEED_10;
3123 cmd->autoneg = (status & VELOCITY_AUTONEG_ENABLE) ? AUTONEG_ENABLE : AUTONEG_DISABLE;
3124 cmd->port = PORT_TP;
3125 cmd->transceiver = XCVR_INTERNAL;
3126 cmd->phy_address = readb(®s->MIIADR) & 0x1F;
3128 if (status & VELOCITY_DUPLEX_FULL)
3129 cmd->duplex = DUPLEX_FULL;
3131 cmd->duplex = DUPLEX_HALF;
3136 static int velocity_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
3138 struct velocity_info *vptr = netdev_priv(dev);
3143 curr_status = check_connection_type(vptr->mac_regs);
3144 curr_status &= (~VELOCITY_LINK_FAIL);
3146 new_status |= ((cmd->autoneg) ? VELOCITY_AUTONEG_ENABLE : 0);
3147 new_status |= ((cmd->speed == SPEED_100) ? VELOCITY_SPEED_100 : 0);
3148 new_status |= ((cmd->speed == SPEED_10) ? VELOCITY_SPEED_10 : 0);
3149 new_status |= ((cmd->duplex == DUPLEX_FULL) ? VELOCITY_DUPLEX_FULL : 0);
3151 if ((new_status & VELOCITY_AUTONEG_ENABLE) && (new_status != (curr_status | VELOCITY_AUTONEG_ENABLE)))
3154 velocity_set_media_mode(vptr, new_status);
3159 static void velocity_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
3161 struct velocity_info *vptr = netdev_priv(dev);
3162 strcpy(info->driver, VELOCITY_NAME);
3163 strcpy(info->version, VELOCITY_VERSION);
3164 strcpy(info->bus_info, pci_name(vptr->pdev));
3167 static void velocity_ethtool_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
3169 struct velocity_info *vptr = netdev_priv(dev);
3170 wol->supported = WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_ARP;
3171 wol->wolopts |= WAKE_MAGIC;
3173 if (vptr->wol_opts & VELOCITY_WOL_PHY)
3174 wol.wolopts|=WAKE_PHY;
3176 if (vptr->wol_opts & VELOCITY_WOL_UCAST)
3177 wol->wolopts |= WAKE_UCAST;
3178 if (vptr->wol_opts & VELOCITY_WOL_ARP)
3179 wol->wolopts |= WAKE_ARP;
3180 memcpy(&wol->sopass, vptr->wol_passwd, 6);
3183 static int velocity_ethtool_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
3185 struct velocity_info *vptr = netdev_priv(dev);
3187 if (!(wol->wolopts & (WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_ARP)))
3189 vptr->wol_opts = VELOCITY_WOL_MAGIC;
3192 if (wol.wolopts & WAKE_PHY) {
3193 vptr->wol_opts|=VELOCITY_WOL_PHY;
3194 vptr->flags |=VELOCITY_FLAGS_WOL_ENABLED;
3198 if (wol->wolopts & WAKE_MAGIC) {
3199 vptr->wol_opts |= VELOCITY_WOL_MAGIC;
3200 vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED;
3202 if (wol->wolopts & WAKE_UCAST) {
3203 vptr->wol_opts |= VELOCITY_WOL_UCAST;
3204 vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED;
3206 if (wol->wolopts & WAKE_ARP) {
3207 vptr->wol_opts |= VELOCITY_WOL_ARP;
3208 vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED;
3210 memcpy(vptr->wol_passwd, wol->sopass, 6);
3214 static u32 velocity_get_msglevel(struct net_device *dev)
3219 static void velocity_set_msglevel(struct net_device *dev, u32 value)
3224 static const struct ethtool_ops velocity_ethtool_ops = {
3225 .get_settings = velocity_get_settings,
3226 .set_settings = velocity_set_settings,
3227 .get_drvinfo = velocity_get_drvinfo,
3228 .get_wol = velocity_ethtool_get_wol,
3229 .set_wol = velocity_ethtool_set_wol,
3230 .get_msglevel = velocity_get_msglevel,
3231 .set_msglevel = velocity_set_msglevel,
3232 .get_link = velocity_get_link,
3233 .begin = velocity_ethtool_up,
3234 .complete = velocity_ethtool_down
3239 static int velocity_netdev_event(struct notifier_block *nb, unsigned long notification, void *ptr)
3241 struct in_ifaddr *ifa = (struct in_ifaddr *) ptr;
3242 struct net_device *dev = ifa->ifa_dev->dev;
3243 struct velocity_info *vptr;
3244 unsigned long flags;
3246 if (dev_net(dev) != &init_net)
3249 spin_lock_irqsave(&velocity_dev_list_lock, flags);
3250 list_for_each_entry(vptr, &velocity_dev_list, list) {
3251 if (vptr->dev == dev) {
3252 velocity_get_ip(vptr);
3256 spin_unlock_irqrestore(&velocity_dev_list_lock, flags);
3260 #endif /* CONFIG_INET */
3261 #endif /* CONFIG_PM */
3263 #if defined(CONFIG_PM) && defined(CONFIG_INET)
3264 static struct notifier_block velocity_inetaddr_notifier = {
3265 .notifier_call = velocity_netdev_event,
3268 static void velocity_register_notifier(void)
3270 register_inetaddr_notifier(&velocity_inetaddr_notifier);
3273 static void velocity_unregister_notifier(void)
3275 unregister_inetaddr_notifier(&velocity_inetaddr_notifier);
3280 #define velocity_register_notifier() do {} while (0)
3281 #define velocity_unregister_notifier() do {} while (0)
3283 #endif /* defined(CONFIG_PM) && defined(CONFIG_INET) */
3286 * velocity_init_module - load time function
3288 * Called when the velocity module is loaded. The PCI driver
3289 * is registered with the PCI layer, and in turn will call
3290 * the probe functions for each velocity adapter installed
3293 static int __init velocity_init_module(void)
3297 velocity_register_notifier();
3298 ret = pci_register_driver(&velocity_driver);
3300 velocity_unregister_notifier();
3305 * velocity_cleanup - module unload
3307 * When the velocity hardware is unloaded this function is called.
3308 * It will clean up the notifiers and the unregister the PCI
3309 * driver interface for this hardware. This in turn cleans up
3310 * all discovered interfaces before returning from the function
3312 static void __exit velocity_cleanup_module(void)
3314 velocity_unregister_notifier();
3315 pci_unregister_driver(&velocity_driver);
3318 module_init(velocity_init_module);
3319 module_exit(velocity_cleanup_module);