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 * Internal board variants. At the moment we have only one
370 static struct velocity_info_tbl chip_info_table[] = {
371 {CHIP_TYPE_VT6110, "VIA Networking Velocity Family Gigabit Ethernet Adapter", 1, 0x00FFFFFFUL},
376 * Describe the PCI device identifiers that we support in this
377 * device driver. Used for hotplug autoloading.
379 static const struct pci_device_id velocity_id_table[] __devinitdata = {
380 { PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_612X) },
384 MODULE_DEVICE_TABLE(pci, velocity_id_table);
387 * get_chip_name - identifier to name
388 * @id: chip identifier
390 * Given a chip identifier return a suitable description. Returns
391 * a pointer a static string valid while the driver is loaded.
393 static const char __devinit *get_chip_name(enum chip_type chip_id)
396 for (i = 0; chip_info_table[i].name != NULL; i++)
397 if (chip_info_table[i].chip_id == chip_id)
399 return chip_info_table[i].name;
403 * velocity_remove1 - device unplug
404 * @pdev: PCI device being removed
406 * Device unload callback. Called on an unplug or on module
407 * unload for each active device that is present. Disconnects
408 * the device from the network layer and frees all the resources
410 static void __devexit velocity_remove1(struct pci_dev *pdev)
412 struct net_device *dev = pci_get_drvdata(pdev);
413 struct velocity_info *vptr = netdev_priv(dev);
415 unregister_netdev(dev);
416 iounmap(vptr->mac_regs);
417 pci_release_regions(pdev);
418 pci_disable_device(pdev);
419 pci_set_drvdata(pdev, NULL);
426 * velocity_set_int_opt - parser for integer options
427 * @opt: pointer to option value
428 * @val: value the user requested (or -1 for default)
429 * @min: lowest value allowed
430 * @max: highest value allowed
431 * @def: default value
432 * @name: property name
435 * Set an integer property in the module options. This function does
436 * all the verification and checking as well as reporting so that
437 * we don't duplicate code for each option.
439 static void __devinit velocity_set_int_opt(int *opt, int val, int min, int max, int def, char *name, const char *devname)
443 else if (val < min || val > max) {
444 VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: the value of parameter %s is invalid, the valid range is (%d-%d)\n",
445 devname, name, min, max);
448 VELOCITY_PRT(MSG_LEVEL_INFO, KERN_INFO "%s: set value of parameter %s to %d\n",
455 * velocity_set_bool_opt - parser for boolean options
456 * @opt: pointer to option value
457 * @val: value the user requested (or -1 for default)
458 * @def: default value (yes/no)
459 * @flag: numeric value to set for true.
460 * @name: property name
463 * Set a boolean property in the module options. This function does
464 * all the verification and checking as well as reporting so that
465 * we don't duplicate code for each option.
467 static void __devinit velocity_set_bool_opt(u32 *opt, int val, int def, u32 flag, char *name, const char *devname)
471 *opt |= (def ? flag : 0);
472 else if (val < 0 || val > 1) {
473 printk(KERN_NOTICE "%s: the value of parameter %s is invalid, the valid range is (0-1)\n",
475 *opt |= (def ? flag : 0);
477 printk(KERN_INFO "%s: set parameter %s to %s\n",
478 devname, name, val ? "TRUE" : "FALSE");
479 *opt |= (val ? flag : 0);
484 * velocity_get_options - set options on device
485 * @opts: option structure for the device
486 * @index: index of option to use in module options array
487 * @devname: device name
489 * Turn the module and command options into a single structure
490 * for the current device
492 static void __devinit velocity_get_options(struct velocity_opt *opts, int index, const char *devname)
495 velocity_set_int_opt(&opts->rx_thresh, rx_thresh[index], RX_THRESH_MIN, RX_THRESH_MAX, RX_THRESH_DEF, "rx_thresh", devname);
496 velocity_set_int_opt(&opts->DMA_length, DMA_length[index], DMA_LENGTH_MIN, DMA_LENGTH_MAX, DMA_LENGTH_DEF, "DMA_length", devname);
497 velocity_set_int_opt(&opts->numrx, RxDescriptors[index], RX_DESC_MIN, RX_DESC_MAX, RX_DESC_DEF, "RxDescriptors", devname);
498 velocity_set_int_opt(&opts->numtx, TxDescriptors[index], TX_DESC_MIN, TX_DESC_MAX, TX_DESC_DEF, "TxDescriptors", devname);
500 velocity_set_bool_opt(&opts->flags, txcsum_offload[index], TX_CSUM_DEF, VELOCITY_FLAGS_TX_CSUM, "txcsum_offload", devname);
501 velocity_set_int_opt(&opts->flow_cntl, flow_control[index], FLOW_CNTL_MIN, FLOW_CNTL_MAX, FLOW_CNTL_DEF, "flow_control", devname);
502 velocity_set_bool_opt(&opts->flags, IP_byte_align[index], IP_ALIG_DEF, VELOCITY_FLAGS_IP_ALIGN, "IP_byte_align", devname);
503 velocity_set_bool_opt(&opts->flags, ValPktLen[index], VAL_PKT_LEN_DEF, VELOCITY_FLAGS_VAL_PKT_LEN, "ValPktLen", devname);
504 velocity_set_int_opt((int *) &opts->spd_dpx, speed_duplex[index], MED_LNK_MIN, MED_LNK_MAX, MED_LNK_DEF, "Media link mode", devname);
505 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);
506 velocity_set_int_opt((int *) &opts->int_works, int_works[index], INT_WORKS_MIN, INT_WORKS_MAX, INT_WORKS_DEF, "Interrupt service works", devname);
507 opts->numrx = (opts->numrx & ~3);
511 * velocity_init_cam_filter - initialise CAM
512 * @vptr: velocity to program
514 * Initialize the content addressable memory used for filters. Load
515 * appropriately according to the presence of VLAN
517 static void velocity_init_cam_filter(struct velocity_info *vptr)
519 struct mac_regs __iomem *regs = vptr->mac_regs;
521 /* Turn on MCFG_PQEN, turn off MCFG_RTGOPT */
522 WORD_REG_BITS_SET(MCFG_PQEN, MCFG_RTGOPT, ®s->MCFG);
523 WORD_REG_BITS_ON(MCFG_VIDFR, ®s->MCFG);
525 /* Disable all CAMs */
526 memset(vptr->vCAMmask, 0, sizeof(u8) * 8);
527 memset(vptr->mCAMmask, 0, sizeof(u8) * 8);
528 mac_set_vlan_cam_mask(regs, vptr->vCAMmask);
529 mac_set_cam_mask(regs, vptr->mCAMmask);
533 unsigned int vid, i = 0;
535 if (!vlan_group_get_device(vptr->vlgrp, 0))
536 WORD_REG_BITS_ON(MCFG_RTGOPT, ®s->MCFG);
538 for (vid = 1; (vid < VLAN_VID_MASK); vid++) {
539 if (vlan_group_get_device(vptr->vlgrp, vid)) {
540 mac_set_vlan_cam(regs, i, (u8 *) &vid);
541 vptr->vCAMmask[i / 8] |= 0x1 << (i % 8);
542 if (++i >= VCAM_SIZE)
546 mac_set_vlan_cam_mask(regs, vptr->vCAMmask);
550 static void velocity_vlan_rx_register(struct net_device *dev,
551 struct vlan_group *grp)
553 struct velocity_info *vptr = netdev_priv(dev);
558 static void velocity_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
560 struct velocity_info *vptr = netdev_priv(dev);
562 spin_lock_irq(&vptr->lock);
563 velocity_init_cam_filter(vptr);
564 spin_unlock_irq(&vptr->lock);
567 static void velocity_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
569 struct velocity_info *vptr = netdev_priv(dev);
571 spin_lock_irq(&vptr->lock);
572 vlan_group_set_device(vptr->vlgrp, vid, NULL);
573 velocity_init_cam_filter(vptr);
574 spin_unlock_irq(&vptr->lock);
577 static void velocity_init_rx_ring_indexes(struct velocity_info *vptr)
579 vptr->rx.dirty = vptr->rx.filled = vptr->rx.curr = 0;
583 * velocity_rx_reset - handle a receive reset
584 * @vptr: velocity we are resetting
586 * Reset the ownership and status for the receive ring side.
587 * Hand all the receive queue to the NIC.
589 static void velocity_rx_reset(struct velocity_info *vptr)
592 struct mac_regs __iomem *regs = vptr->mac_regs;
595 velocity_init_rx_ring_indexes(vptr);
598 * Init state, all RD entries belong to the NIC
600 for (i = 0; i < vptr->options.numrx; ++i)
601 vptr->rx.ring[i].rdesc0.len |= OWNED_BY_NIC;
603 writew(vptr->options.numrx, ®s->RBRDU);
604 writel(vptr->rx.pool_dma, ®s->RDBaseLo);
605 writew(0, ®s->RDIdx);
606 writew(vptr->options.numrx - 1, ®s->RDCSize);
610 * velocity_get_opt_media_mode - get media selection
611 * @vptr: velocity adapter
613 * Get the media mode stored in EEPROM or module options and load
614 * mii_status accordingly. The requested link state information
617 static u32 velocity_get_opt_media_mode(struct velocity_info *vptr)
621 switch (vptr->options.spd_dpx) {
623 status = VELOCITY_AUTONEG_ENABLE;
625 case SPD_DPX_100_FULL:
626 status = VELOCITY_SPEED_100 | VELOCITY_DUPLEX_FULL;
628 case SPD_DPX_10_FULL:
629 status = VELOCITY_SPEED_10 | VELOCITY_DUPLEX_FULL;
631 case SPD_DPX_100_HALF:
632 status = VELOCITY_SPEED_100;
634 case SPD_DPX_10_HALF:
635 status = VELOCITY_SPEED_10;
638 vptr->mii_status = status;
643 * safe_disable_mii_autopoll - autopoll off
644 * @regs: velocity registers
646 * Turn off the autopoll and wait for it to disable on the chip
648 static void safe_disable_mii_autopoll(struct mac_regs __iomem *regs)
653 writeb(0, ®s->MIICR);
654 for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
656 if (BYTE_REG_BITS_IS_ON(MIISR_MIDLE, ®s->MIISR))
662 * enable_mii_autopoll - turn on autopolling
663 * @regs: velocity registers
665 * Enable the MII link status autopoll feature on the Velocity
666 * hardware. Wait for it to enable.
668 static void enable_mii_autopoll(struct mac_regs __iomem *regs)
672 writeb(0, &(regs->MIICR));
673 writeb(MIIADR_SWMPL, ®s->MIIADR);
675 for (ii = 0; ii < W_MAX_TIMEOUT; ii++) {
677 if (BYTE_REG_BITS_IS_ON(MIISR_MIDLE, ®s->MIISR))
681 writeb(MIICR_MAUTO, ®s->MIICR);
683 for (ii = 0; ii < W_MAX_TIMEOUT; ii++) {
685 if (!BYTE_REG_BITS_IS_ON(MIISR_MIDLE, ®s->MIISR))
692 * velocity_mii_read - read MII data
693 * @regs: velocity registers
694 * @index: MII register index
695 * @data: buffer for received data
697 * Perform a single read of an MII 16bit register. Returns zero
698 * on success or -ETIMEDOUT if the PHY did not respond.
700 static int velocity_mii_read(struct mac_regs __iomem *regs, u8 index, u16 *data)
705 * Disable MIICR_MAUTO, so that mii addr can be set normally
707 safe_disable_mii_autopoll(regs);
709 writeb(index, ®s->MIIADR);
711 BYTE_REG_BITS_ON(MIICR_RCMD, ®s->MIICR);
713 for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
714 if (!(readb(®s->MIICR) & MIICR_RCMD))
718 *data = readw(®s->MIIDATA);
720 enable_mii_autopoll(regs);
721 if (ww == W_MAX_TIMEOUT)
728 * mii_check_media_mode - check media state
729 * @regs: velocity registers
731 * Check the current MII status and determine the link status
734 static u32 mii_check_media_mode(struct mac_regs __iomem *regs)
739 if (!MII_REG_BITS_IS_ON(BMSR_LNK, MII_REG_BMSR, regs))
740 status |= VELOCITY_LINK_FAIL;
742 if (MII_REG_BITS_IS_ON(G1000CR_1000FD, MII_REG_G1000CR, regs))
743 status |= VELOCITY_SPEED_1000 | VELOCITY_DUPLEX_FULL;
744 else if (MII_REG_BITS_IS_ON(G1000CR_1000, MII_REG_G1000CR, regs))
745 status |= (VELOCITY_SPEED_1000);
747 velocity_mii_read(regs, MII_REG_ANAR, &ANAR);
748 if (ANAR & ANAR_TXFD)
749 status |= (VELOCITY_SPEED_100 | VELOCITY_DUPLEX_FULL);
750 else if (ANAR & ANAR_TX)
751 status |= VELOCITY_SPEED_100;
752 else if (ANAR & ANAR_10FD)
753 status |= (VELOCITY_SPEED_10 | VELOCITY_DUPLEX_FULL);
755 status |= (VELOCITY_SPEED_10);
758 if (MII_REG_BITS_IS_ON(BMCR_AUTO, MII_REG_BMCR, regs)) {
759 velocity_mii_read(regs, MII_REG_ANAR, &ANAR);
760 if ((ANAR & (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10))
761 == (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10)) {
762 if (MII_REG_BITS_IS_ON(G1000CR_1000 | G1000CR_1000FD, MII_REG_G1000CR, regs))
763 status |= VELOCITY_AUTONEG_ENABLE;
771 * velocity_mii_write - write MII data
772 * @regs: velocity registers
773 * @index: MII register index
774 * @data: 16bit data for the MII register
776 * Perform a single write to an MII 16bit register. Returns zero
777 * on success or -ETIMEDOUT if the PHY did not respond.
779 static int velocity_mii_write(struct mac_regs __iomem *regs, u8 mii_addr, u16 data)
784 * Disable MIICR_MAUTO, so that mii addr can be set normally
786 safe_disable_mii_autopoll(regs);
789 writeb(mii_addr, ®s->MIIADR);
791 writew(data, ®s->MIIDATA);
793 /* turn on MIICR_WCMD */
794 BYTE_REG_BITS_ON(MIICR_WCMD, ®s->MIICR);
796 /* W_MAX_TIMEOUT is the timeout period */
797 for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
799 if (!(readb(®s->MIICR) & MIICR_WCMD))
802 enable_mii_autopoll(regs);
804 if (ww == W_MAX_TIMEOUT)
810 * set_mii_flow_control - flow control setup
811 * @vptr: velocity interface
813 * Set up the flow control on this interface according to
814 * the supplied user/eeprom options.
816 static void set_mii_flow_control(struct velocity_info *vptr)
818 /*Enable or Disable PAUSE in ANAR */
819 switch (vptr->options.flow_cntl) {
821 MII_REG_BITS_OFF(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs);
822 MII_REG_BITS_ON(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs);
826 MII_REG_BITS_ON(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs);
827 MII_REG_BITS_ON(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs);
830 case FLOW_CNTL_TX_RX:
831 MII_REG_BITS_ON(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs);
832 MII_REG_BITS_ON(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs);
835 case FLOW_CNTL_DISABLE:
836 MII_REG_BITS_OFF(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs);
837 MII_REG_BITS_OFF(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs);
845 * mii_set_auto_on - autonegotiate on
848 * Enable autonegotation on this interface
850 static void mii_set_auto_on(struct velocity_info *vptr)
852 if (MII_REG_BITS_IS_ON(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs))
853 MII_REG_BITS_ON(BMCR_REAUTO, MII_REG_BMCR, vptr->mac_regs);
855 MII_REG_BITS_ON(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs);
858 static u32 check_connection_type(struct mac_regs __iomem *regs)
863 PHYSR0 = readb(®s->PHYSR0);
866 if (!(PHYSR0 & PHYSR0_LINKGD))
867 status|=VELOCITY_LINK_FAIL;
870 if (PHYSR0 & PHYSR0_FDPX)
871 status |= VELOCITY_DUPLEX_FULL;
873 if (PHYSR0 & PHYSR0_SPDG)
874 status |= VELOCITY_SPEED_1000;
875 else if (PHYSR0 & PHYSR0_SPD10)
876 status |= VELOCITY_SPEED_10;
878 status |= VELOCITY_SPEED_100;
880 if (MII_REG_BITS_IS_ON(BMCR_AUTO, MII_REG_BMCR, regs)) {
881 velocity_mii_read(regs, MII_REG_ANAR, &ANAR);
882 if ((ANAR & (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10))
883 == (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10)) {
884 if (MII_REG_BITS_IS_ON(G1000CR_1000 | G1000CR_1000FD, MII_REG_G1000CR, regs))
885 status |= VELOCITY_AUTONEG_ENABLE;
895 * velocity_set_media_mode - set media mode
896 * @mii_status: old MII link state
898 * Check the media link state and configure the flow control
899 * PHY and also velocity hardware setup accordingly. In particular
900 * we need to set up CD polling and frame bursting.
902 static int velocity_set_media_mode(struct velocity_info *vptr, u32 mii_status)
905 struct mac_regs __iomem *regs = vptr->mac_regs;
907 vptr->mii_status = mii_check_media_mode(vptr->mac_regs);
908 curr_status = vptr->mii_status & (~VELOCITY_LINK_FAIL);
910 /* Set mii link status */
911 set_mii_flow_control(vptr);
914 Check if new status is consisent with current status
915 if (((mii_status & curr_status) & VELOCITY_AUTONEG_ENABLE)
916 || (mii_status==curr_status)) {
917 vptr->mii_status=mii_check_media_mode(vptr->mac_regs);
918 vptr->mii_status=check_connection_type(vptr->mac_regs);
919 VELOCITY_PRT(MSG_LEVEL_INFO, "Velocity link no change\n");
924 if (PHYID_GET_PHY_ID(vptr->phy_id) == PHYID_CICADA_CS8201)
925 MII_REG_BITS_ON(AUXCR_MDPPS, MII_REG_AUXCR, vptr->mac_regs);
928 * If connection type is AUTO
930 if (mii_status & VELOCITY_AUTONEG_ENABLE) {
931 VELOCITY_PRT(MSG_LEVEL_INFO, "Velocity is AUTO mode\n");
932 /* clear force MAC mode bit */
933 BYTE_REG_BITS_OFF(CHIPGCR_FCMODE, ®s->CHIPGCR);
934 /* set duplex mode of MAC according to duplex mode of MII */
935 MII_REG_BITS_ON(ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10, MII_REG_ANAR, vptr->mac_regs);
936 MII_REG_BITS_ON(G1000CR_1000FD | G1000CR_1000, MII_REG_G1000CR, vptr->mac_regs);
937 MII_REG_BITS_ON(BMCR_SPEED1G, MII_REG_BMCR, vptr->mac_regs);
939 /* enable AUTO-NEGO mode */
940 mii_set_auto_on(vptr);
946 * 1. if it's 3119, disable frame bursting in halfduplex mode
947 * and enable it in fullduplex mode
948 * 2. set correct MII/GMII and half/full duplex mode in CHIPGCR
949 * 3. only enable CD heart beat counter in 10HD mode
952 /* set force MAC mode bit */
953 BYTE_REG_BITS_ON(CHIPGCR_FCMODE, ®s->CHIPGCR);
955 CHIPGCR = readb(®s->CHIPGCR);
956 CHIPGCR &= ~CHIPGCR_FCGMII;
958 if (mii_status & VELOCITY_DUPLEX_FULL) {
959 CHIPGCR |= CHIPGCR_FCFDX;
960 writeb(CHIPGCR, ®s->CHIPGCR);
961 VELOCITY_PRT(MSG_LEVEL_INFO, "set Velocity to forced full mode\n");
962 if (vptr->rev_id < REV_ID_VT3216_A0)
963 BYTE_REG_BITS_OFF(TCR_TB2BDIS, ®s->TCR);
965 CHIPGCR &= ~CHIPGCR_FCFDX;
966 VELOCITY_PRT(MSG_LEVEL_INFO, "set Velocity to forced half mode\n");
967 writeb(CHIPGCR, ®s->CHIPGCR);
968 if (vptr->rev_id < REV_ID_VT3216_A0)
969 BYTE_REG_BITS_ON(TCR_TB2BDIS, ®s->TCR);
972 MII_REG_BITS_OFF(G1000CR_1000FD | G1000CR_1000, MII_REG_G1000CR, vptr->mac_regs);
974 if (!(mii_status & VELOCITY_DUPLEX_FULL) && (mii_status & VELOCITY_SPEED_10))
975 BYTE_REG_BITS_OFF(TESTCFG_HBDIS, ®s->TESTCFG);
977 BYTE_REG_BITS_ON(TESTCFG_HBDIS, ®s->TESTCFG);
979 /* MII_REG_BITS_OFF(BMCR_SPEED1G, MII_REG_BMCR, vptr->mac_regs); */
980 velocity_mii_read(vptr->mac_regs, MII_REG_ANAR, &ANAR);
981 ANAR &= (~(ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10));
982 if (mii_status & VELOCITY_SPEED_100) {
983 if (mii_status & VELOCITY_DUPLEX_FULL)
988 if (mii_status & VELOCITY_DUPLEX_FULL)
993 velocity_mii_write(vptr->mac_regs, MII_REG_ANAR, ANAR);
994 /* enable AUTO-NEGO mode */
995 mii_set_auto_on(vptr);
996 /* MII_REG_BITS_ON(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs); */
998 /* vptr->mii_status=mii_check_media_mode(vptr->mac_regs); */
999 /* vptr->mii_status=check_connection_type(vptr->mac_regs); */
1000 return VELOCITY_LINK_CHANGE;
1004 * velocity_print_link_status - link status reporting
1005 * @vptr: velocity to report on
1007 * Turn the link status of the velocity card into a kernel log
1008 * description of the new link state, detailing speed and duplex
1011 static void velocity_print_link_status(struct velocity_info *vptr)
1014 if (vptr->mii_status & VELOCITY_LINK_FAIL) {
1015 VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: failed to detect cable link\n", vptr->dev->name);
1016 } else if (vptr->options.spd_dpx == SPD_DPX_AUTO) {
1017 VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: Link auto-negotiation", vptr->dev->name);
1019 if (vptr->mii_status & VELOCITY_SPEED_1000)
1020 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 1000M bps");
1021 else if (vptr->mii_status & VELOCITY_SPEED_100)
1022 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 100M bps");
1024 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 10M bps");
1026 if (vptr->mii_status & VELOCITY_DUPLEX_FULL)
1027 VELOCITY_PRT(MSG_LEVEL_INFO, " full duplex\n");
1029 VELOCITY_PRT(MSG_LEVEL_INFO, " half duplex\n");
1031 VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: Link forced", vptr->dev->name);
1032 switch (vptr->options.spd_dpx) {
1033 case SPD_DPX_100_HALF:
1034 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 100M bps half duplex\n");
1036 case SPD_DPX_100_FULL:
1037 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 100M bps full duplex\n");
1039 case SPD_DPX_10_HALF:
1040 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 10M bps half duplex\n");
1042 case SPD_DPX_10_FULL:
1043 VELOCITY_PRT(MSG_LEVEL_INFO, " speed 10M bps full duplex\n");
1052 * enable_flow_control_ability - flow control
1053 * @vptr: veloity to configure
1055 * Set up flow control according to the flow control options
1056 * determined by the eeprom/configuration.
1058 static void enable_flow_control_ability(struct velocity_info *vptr)
1061 struct mac_regs __iomem *regs = vptr->mac_regs;
1063 switch (vptr->options.flow_cntl) {
1065 case FLOW_CNTL_DEFAULT:
1066 if (BYTE_REG_BITS_IS_ON(PHYSR0_RXFLC, ®s->PHYSR0))
1067 writel(CR0_FDXRFCEN, ®s->CR0Set);
1069 writel(CR0_FDXRFCEN, ®s->CR0Clr);
1071 if (BYTE_REG_BITS_IS_ON(PHYSR0_TXFLC, ®s->PHYSR0))
1072 writel(CR0_FDXTFCEN, ®s->CR0Set);
1074 writel(CR0_FDXTFCEN, ®s->CR0Clr);
1078 writel(CR0_FDXTFCEN, ®s->CR0Set);
1079 writel(CR0_FDXRFCEN, ®s->CR0Clr);
1083 writel(CR0_FDXRFCEN, ®s->CR0Set);
1084 writel(CR0_FDXTFCEN, ®s->CR0Clr);
1087 case FLOW_CNTL_TX_RX:
1088 writel(CR0_FDXTFCEN, ®s->CR0Set);
1089 writel(CR0_FDXRFCEN, ®s->CR0Set);
1092 case FLOW_CNTL_DISABLE:
1093 writel(CR0_FDXRFCEN, ®s->CR0Clr);
1094 writel(CR0_FDXTFCEN, ®s->CR0Clr);
1104 * velocity_soft_reset - soft reset
1105 * @vptr: velocity to reset
1107 * Kick off a soft reset of the velocity adapter and then poll
1108 * until the reset sequence has completed before returning.
1110 static int velocity_soft_reset(struct velocity_info *vptr)
1112 struct mac_regs __iomem *regs = vptr->mac_regs;
1115 writel(CR0_SFRST, ®s->CR0Set);
1117 for (i = 0; i < W_MAX_TIMEOUT; i++) {
1119 if (!DWORD_REG_BITS_IS_ON(CR0_SFRST, ®s->CR0Set))
1123 if (i == W_MAX_TIMEOUT) {
1124 writel(CR0_FORSRST, ®s->CR0Set);
1125 /* FIXME: PCI POSTING */
1133 * velocity_set_multi - filter list change callback
1134 * @dev: network device
1136 * Called by the network layer when the filter lists need to change
1137 * for a velocity adapter. Reload the CAMs with the new address
1140 static void velocity_set_multi(struct net_device *dev)
1142 struct velocity_info *vptr = netdev_priv(dev);
1143 struct mac_regs __iomem *regs = vptr->mac_regs;
1146 struct dev_mc_list *mclist;
1148 if (dev->flags & IFF_PROMISC) { /* Set promiscuous. */
1149 writel(0xffffffff, ®s->MARCAM[0]);
1150 writel(0xffffffff, ®s->MARCAM[4]);
1151 rx_mode = (RCR_AM | RCR_AB | RCR_PROM);
1152 } else if ((dev->mc_count > vptr->multicast_limit)
1153 || (dev->flags & IFF_ALLMULTI)) {
1154 writel(0xffffffff, ®s->MARCAM[0]);
1155 writel(0xffffffff, ®s->MARCAM[4]);
1156 rx_mode = (RCR_AM | RCR_AB);
1158 int offset = MCAM_SIZE - vptr->multicast_limit;
1159 mac_get_cam_mask(regs, vptr->mCAMmask);
1161 for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count; i++, mclist = mclist->next) {
1162 mac_set_cam(regs, i + offset, mclist->dmi_addr);
1163 vptr->mCAMmask[(offset + i) / 8] |= 1 << ((offset + i) & 7);
1166 mac_set_cam_mask(regs, vptr->mCAMmask);
1167 rx_mode = RCR_AM | RCR_AB | RCR_AP;
1169 if (dev->mtu > 1500)
1172 BYTE_REG_BITS_ON(rx_mode, ®s->RCR);
1177 * MII access , media link mode setting functions
1181 * mii_init - set up MII
1182 * @vptr: velocity adapter
1183 * @mii_status: links tatus
1185 * Set up the PHY for the current link state.
1187 static void mii_init(struct velocity_info *vptr, u32 mii_status)
1191 switch (PHYID_GET_PHY_ID(vptr->phy_id)) {
1192 case PHYID_CICADA_CS8201:
1194 * Reset to hardware default
1196 MII_REG_BITS_OFF((ANAR_ASMDIR | ANAR_PAUSE), MII_REG_ANAR, vptr->mac_regs);
1198 * Turn on ECHODIS bit in NWay-forced full mode and turn it
1199 * off it in NWay-forced half mode for NWay-forced v.s.
1200 * legacy-forced issue.
1202 if (vptr->mii_status & VELOCITY_DUPLEX_FULL)
1203 MII_REG_BITS_ON(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs);
1205 MII_REG_BITS_OFF(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs);
1207 * Turn on Link/Activity LED enable bit for CIS8201
1209 MII_REG_BITS_ON(PLED_LALBE, MII_REG_PLED, vptr->mac_regs);
1211 case PHYID_VT3216_32BIT:
1212 case PHYID_VT3216_64BIT:
1214 * Reset to hardware default
1216 MII_REG_BITS_ON((ANAR_ASMDIR | ANAR_PAUSE), MII_REG_ANAR, vptr->mac_regs);
1218 * Turn on ECHODIS bit in NWay-forced full mode and turn it
1219 * off it in NWay-forced half mode for NWay-forced v.s.
1220 * legacy-forced issue
1222 if (vptr->mii_status & VELOCITY_DUPLEX_FULL)
1223 MII_REG_BITS_ON(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs);
1225 MII_REG_BITS_OFF(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs);
1228 case PHYID_MARVELL_1000:
1229 case PHYID_MARVELL_1000S:
1231 * Assert CRS on Transmit
1233 MII_REG_BITS_ON(PSCR_ACRSTX, MII_REG_PSCR, vptr->mac_regs);
1235 * Reset to hardware default
1237 MII_REG_BITS_ON((ANAR_ASMDIR | ANAR_PAUSE), MII_REG_ANAR, vptr->mac_regs);
1242 velocity_mii_read(vptr->mac_regs, MII_REG_BMCR, &BMCR);
1243 if (BMCR & BMCR_ISO) {
1245 velocity_mii_write(vptr->mac_regs, MII_REG_BMCR, BMCR);
1251 * velocity_init_registers - initialise MAC registers
1252 * @vptr: velocity to init
1253 * @type: type of initialisation (hot or cold)
1255 * Initialise the MAC on a reset or on first set up on the
1258 static void velocity_init_registers(struct velocity_info *vptr,
1259 enum velocity_init_type type)
1261 struct mac_regs __iomem *regs = vptr->mac_regs;
1264 mac_wol_reset(regs);
1267 case VELOCITY_INIT_RESET:
1268 case VELOCITY_INIT_WOL:
1270 netif_stop_queue(vptr->dev);
1273 * Reset RX to prevent RX pointer not on the 4X location
1275 velocity_rx_reset(vptr);
1276 mac_rx_queue_run(regs);
1277 mac_rx_queue_wake(regs);
1279 mii_status = velocity_get_opt_media_mode(vptr);
1280 if (velocity_set_media_mode(vptr, mii_status) != VELOCITY_LINK_CHANGE) {
1281 velocity_print_link_status(vptr);
1282 if (!(vptr->mii_status & VELOCITY_LINK_FAIL))
1283 netif_wake_queue(vptr->dev);
1286 enable_flow_control_ability(vptr);
1288 mac_clear_isr(regs);
1289 writel(CR0_STOP, ®s->CR0Clr);
1290 writel((CR0_DPOLL | CR0_TXON | CR0_RXON | CR0_STRT),
1295 case VELOCITY_INIT_COLD:
1300 velocity_soft_reset(vptr);
1303 mac_eeprom_reload(regs);
1304 for (i = 0; i < 6; i++)
1305 writeb(vptr->dev->dev_addr[i], &(regs->PAR[i]));
1308 * clear Pre_ACPI bit.
1310 BYTE_REG_BITS_OFF(CFGA_PACPI, &(regs->CFGA));
1311 mac_set_rx_thresh(regs, vptr->options.rx_thresh);
1312 mac_set_dma_length(regs, vptr->options.DMA_length);
1314 writeb(WOLCFG_SAM | WOLCFG_SAB, ®s->WOLCFGSet);
1316 * Back off algorithm use original IEEE standard
1318 BYTE_REG_BITS_SET(CFGB_OFSET, (CFGB_CRANDOM | CFGB_CAP | CFGB_MBA | CFGB_BAKOPT), ®s->CFGB);
1323 velocity_init_cam_filter(vptr);
1326 * Set packet filter: Receive directed and broadcast address
1328 velocity_set_multi(vptr->dev);
1331 * Enable MII auto-polling
1333 enable_mii_autopoll(regs);
1335 vptr->int_mask = INT_MASK_DEF;
1337 writel(vptr->rx.pool_dma, ®s->RDBaseLo);
1338 writew(vptr->options.numrx - 1, ®s->RDCSize);
1339 mac_rx_queue_run(regs);
1340 mac_rx_queue_wake(regs);
1342 writew(vptr->options.numtx - 1, ®s->TDCSize);
1344 for (i = 0; i < vptr->tx.numq; i++) {
1345 writel(vptr->tx.pool_dma[i], ®s->TDBaseLo[i]);
1346 mac_tx_queue_run(regs, i);
1349 init_flow_control_register(vptr);
1351 writel(CR0_STOP, ®s->CR0Clr);
1352 writel((CR0_DPOLL | CR0_TXON | CR0_RXON | CR0_STRT), ®s->CR0Set);
1354 mii_status = velocity_get_opt_media_mode(vptr);
1355 netif_stop_queue(vptr->dev);
1357 mii_init(vptr, mii_status);
1359 if (velocity_set_media_mode(vptr, mii_status) != VELOCITY_LINK_CHANGE) {
1360 velocity_print_link_status(vptr);
1361 if (!(vptr->mii_status & VELOCITY_LINK_FAIL))
1362 netif_wake_queue(vptr->dev);
1365 enable_flow_control_ability(vptr);
1366 mac_hw_mibs_init(regs);
1367 mac_write_int_mask(vptr->int_mask, regs);
1368 mac_clear_isr(regs);
1373 static void velocity_give_many_rx_descs(struct velocity_info *vptr)
1375 struct mac_regs __iomem *regs = vptr->mac_regs;
1376 int avail, dirty, unusable;
1379 * RD number must be equal to 4X per hardware spec
1380 * (programming guide rev 1.20, p.13)
1382 if (vptr->rx.filled < 4)
1387 unusable = vptr->rx.filled & 0x0003;
1388 dirty = vptr->rx.dirty - unusable;
1389 for (avail = vptr->rx.filled & 0xfffc; avail; avail--) {
1390 dirty = (dirty > 0) ? dirty - 1 : vptr->options.numrx - 1;
1391 vptr->rx.ring[dirty].rdesc0.len |= OWNED_BY_NIC;
1394 writew(vptr->rx.filled & 0xfffc, ®s->RBRDU);
1395 vptr->rx.filled = unusable;
1399 * velocity_init_dma_rings - set up DMA rings
1400 * @vptr: Velocity to set up
1402 * Allocate PCI mapped DMA rings for the receive and transmit layer
1405 static int velocity_init_dma_rings(struct velocity_info *vptr)
1407 struct velocity_opt *opt = &vptr->options;
1408 const unsigned int rx_ring_size = opt->numrx * sizeof(struct rx_desc);
1409 const unsigned int tx_ring_size = opt->numtx * sizeof(struct tx_desc);
1410 struct pci_dev *pdev = vptr->pdev;
1411 dma_addr_t pool_dma;
1416 * Allocate all RD/TD rings a single pool.
1418 * pci_alloc_consistent() fulfills the requirement for 64 bytes
1421 pool = pci_alloc_consistent(pdev, tx_ring_size * vptr->tx.numq +
1422 rx_ring_size, &pool_dma);
1424 dev_err(&pdev->dev, "%s : DMA memory allocation failed.\n",
1429 vptr->rx.ring = pool;
1430 vptr->rx.pool_dma = pool_dma;
1432 pool += rx_ring_size;
1433 pool_dma += rx_ring_size;
1435 for (i = 0; i < vptr->tx.numq; i++) {
1436 vptr->tx.rings[i] = pool;
1437 vptr->tx.pool_dma[i] = pool_dma;
1438 pool += tx_ring_size;
1439 pool_dma += tx_ring_size;
1445 static void velocity_set_rxbufsize(struct velocity_info *vptr, int mtu)
1447 vptr->rx.buf_sz = (mtu <= ETH_DATA_LEN) ? PKT_BUF_SZ : mtu + 32;
1451 * velocity_alloc_rx_buf - allocate aligned receive buffer
1455 * Allocate a new full sized buffer for the reception of a frame and
1456 * map it into PCI space for the hardware to use. The hardware
1457 * requires *64* byte alignment of the buffer which makes life
1458 * less fun than would be ideal.
1460 static int velocity_alloc_rx_buf(struct velocity_info *vptr, int idx)
1462 struct rx_desc *rd = &(vptr->rx.ring[idx]);
1463 struct velocity_rd_info *rd_info = &(vptr->rx.info[idx]);
1465 rd_info->skb = dev_alloc_skb(vptr->rx.buf_sz + 64);
1466 if (rd_info->skb == NULL)
1470 * Do the gymnastics to get the buffer head for data at
1473 skb_reserve(rd_info->skb,
1474 64 - ((unsigned long) rd_info->skb->data & 63));
1475 rd_info->skb_dma = pci_map_single(vptr->pdev, rd_info->skb->data,
1476 vptr->rx.buf_sz, PCI_DMA_FROMDEVICE);
1479 * Fill in the descriptor to match
1482 *((u32 *) & (rd->rdesc0)) = 0;
1483 rd->size = cpu_to_le16(vptr->rx.buf_sz) | RX_INTEN;
1484 rd->pa_low = cpu_to_le32(rd_info->skb_dma);
1490 static int velocity_rx_refill(struct velocity_info *vptr)
1492 int dirty = vptr->rx.dirty, done = 0;
1495 struct rx_desc *rd = vptr->rx.ring + dirty;
1497 /* Fine for an all zero Rx desc at init time as well */
1498 if (rd->rdesc0.len & OWNED_BY_NIC)
1501 if (!vptr->rx.info[dirty].skb) {
1502 if (velocity_alloc_rx_buf(vptr, dirty) < 0)
1506 dirty = (dirty < vptr->options.numrx - 1) ? dirty + 1 : 0;
1507 } while (dirty != vptr->rx.curr);
1510 vptr->rx.dirty = dirty;
1511 vptr->rx.filled += done;
1518 * velocity_free_rd_ring - free receive ring
1519 * @vptr: velocity to clean up
1521 * Free the receive buffers for each ring slot and any
1522 * attached socket buffers that need to go away.
1524 static void velocity_free_rd_ring(struct velocity_info *vptr)
1528 if (vptr->rx.info == NULL)
1531 for (i = 0; i < vptr->options.numrx; i++) {
1532 struct velocity_rd_info *rd_info = &(vptr->rx.info[i]);
1533 struct rx_desc *rd = vptr->rx.ring + i;
1535 memset(rd, 0, sizeof(*rd));
1539 pci_unmap_single(vptr->pdev, rd_info->skb_dma, vptr->rx.buf_sz,
1540 PCI_DMA_FROMDEVICE);
1541 rd_info->skb_dma = 0;
1543 dev_kfree_skb(rd_info->skb);
1544 rd_info->skb = NULL;
1547 kfree(vptr->rx.info);
1548 vptr->rx.info = NULL;
1554 * velocity_init_rd_ring - set up receive ring
1555 * @vptr: velocity to configure
1557 * Allocate and set up the receive buffers for each ring slot and
1558 * assign them to the network adapter.
1560 static int velocity_init_rd_ring(struct velocity_info *vptr)
1564 vptr->rx.info = kcalloc(vptr->options.numrx,
1565 sizeof(struct velocity_rd_info), GFP_KERNEL);
1569 velocity_init_rx_ring_indexes(vptr);
1571 if (velocity_rx_refill(vptr) != vptr->options.numrx) {
1572 VELOCITY_PRT(MSG_LEVEL_ERR, KERN_ERR
1573 "%s: failed to allocate RX buffer.\n", vptr->dev->name);
1574 velocity_free_rd_ring(vptr);
1584 * velocity_init_td_ring - set up transmit ring
1587 * Set up the transmit ring and chain the ring pointers together.
1588 * Returns zero on success or a negative posix errno code for
1591 static int velocity_init_td_ring(struct velocity_info *vptr)
1596 /* Init the TD ring entries */
1597 for (j = 0; j < vptr->tx.numq; j++) {
1598 curr = vptr->tx.pool_dma[j];
1600 vptr->tx.infos[j] = kcalloc(vptr->options.numtx,
1601 sizeof(struct velocity_td_info),
1603 if (!vptr->tx.infos[j]) {
1605 kfree(vptr->tx.infos[j]);
1609 vptr->tx.tail[j] = vptr->tx.curr[j] = vptr->tx.used[j] = 0;
1615 * velocity_free_dma_rings - free PCI ring pointers
1616 * @vptr: Velocity to free from
1618 * Clean up the PCI ring buffers allocated to this velocity.
1620 static void velocity_free_dma_rings(struct velocity_info *vptr)
1622 const int size = vptr->options.numrx * sizeof(struct rx_desc) +
1623 vptr->options.numtx * sizeof(struct tx_desc) * vptr->tx.numq;
1625 pci_free_consistent(vptr->pdev, size, vptr->rx.ring, vptr->rx.pool_dma);
1629 static int velocity_init_rings(struct velocity_info *vptr, int mtu)
1633 velocity_set_rxbufsize(vptr, mtu);
1635 ret = velocity_init_dma_rings(vptr);
1639 ret = velocity_init_rd_ring(vptr);
1641 goto err_free_dma_rings_0;
1643 ret = velocity_init_td_ring(vptr);
1645 goto err_free_rd_ring_1;
1650 velocity_free_rd_ring(vptr);
1651 err_free_dma_rings_0:
1652 velocity_free_dma_rings(vptr);
1657 * velocity_free_tx_buf - free transmit buffer
1661 * Release an transmit buffer. If the buffer was preallocated then
1662 * recycle it, if not then unmap the buffer.
1664 static void velocity_free_tx_buf(struct velocity_info *vptr, struct velocity_td_info *tdinfo)
1666 struct sk_buff *skb = tdinfo->skb;
1671 * Don't unmap the pre-allocated tx_bufs
1673 if (tdinfo->skb_dma) {
1675 pktlen = max_t(unsigned int, skb->len, ETH_ZLEN);
1676 for (i = 0; i < tdinfo->nskb_dma; i++) {
1677 pci_unmap_single(vptr->pdev, tdinfo->skb_dma[i], pktlen, PCI_DMA_TODEVICE);
1678 tdinfo->skb_dma[i] = 0;
1681 dev_kfree_skb_irq(skb);
1687 * FIXME: could we merge this with velocity_free_tx_buf ?
1689 static void velocity_free_td_ring_entry(struct velocity_info *vptr,
1692 struct velocity_td_info *td_info = &(vptr->tx.infos[q][n]);
1695 if (td_info == NULL)
1699 for (i = 0; i < td_info->nskb_dma; i++) {
1700 if (td_info->skb_dma[i]) {
1701 pci_unmap_single(vptr->pdev, td_info->skb_dma[i],
1702 td_info->skb->len, PCI_DMA_TODEVICE);
1703 td_info->skb_dma[i] = 0;
1706 dev_kfree_skb(td_info->skb);
1707 td_info->skb = NULL;
1712 * velocity_free_td_ring - free td ring
1715 * Free up the transmit ring for this particular velocity adapter.
1716 * We free the ring contents but not the ring itself.
1718 static void velocity_free_td_ring(struct velocity_info *vptr)
1722 for (j = 0; j < vptr->tx.numq; j++) {
1723 if (vptr->tx.infos[j] == NULL)
1725 for (i = 0; i < vptr->options.numtx; i++)
1726 velocity_free_td_ring_entry(vptr, j, i);
1728 kfree(vptr->tx.infos[j]);
1729 vptr->tx.infos[j] = NULL;
1734 static void velocity_free_rings(struct velocity_info *vptr)
1736 velocity_free_td_ring(vptr);
1737 velocity_free_rd_ring(vptr);
1738 velocity_free_dma_rings(vptr);
1742 * velocity_error - handle error from controller
1744 * @status: card status
1746 * Process an error report from the hardware and attempt to recover
1747 * the card itself. At the moment we cannot recover from some
1748 * theoretically impossible errors but this could be fixed using
1749 * the pci_device_failed logic to bounce the hardware
1752 static void velocity_error(struct velocity_info *vptr, int status)
1755 if (status & ISR_TXSTLI) {
1756 struct mac_regs __iomem *regs = vptr->mac_regs;
1758 printk(KERN_ERR "TD structure error TDindex=%hx\n", readw(®s->TDIdx[0]));
1759 BYTE_REG_BITS_ON(TXESR_TDSTR, ®s->TXESR);
1760 writew(TRDCSR_RUN, ®s->TDCSRClr);
1761 netif_stop_queue(vptr->dev);
1763 /* FIXME: port over the pci_device_failed code and use it
1767 if (status & ISR_SRCI) {
1768 struct mac_regs __iomem *regs = vptr->mac_regs;
1771 if (vptr->options.spd_dpx == SPD_DPX_AUTO) {
1772 vptr->mii_status = check_connection_type(regs);
1775 * If it is a 3119, disable frame bursting in
1776 * halfduplex mode and enable it in fullduplex
1779 if (vptr->rev_id < REV_ID_VT3216_A0) {
1780 if (vptr->mii_status & VELOCITY_DUPLEX_FULL)
1781 BYTE_REG_BITS_ON(TCR_TB2BDIS, ®s->TCR);
1783 BYTE_REG_BITS_OFF(TCR_TB2BDIS, ®s->TCR);
1786 * Only enable CD heart beat counter in 10HD mode
1788 if (!(vptr->mii_status & VELOCITY_DUPLEX_FULL) && (vptr->mii_status & VELOCITY_SPEED_10))
1789 BYTE_REG_BITS_OFF(TESTCFG_HBDIS, ®s->TESTCFG);
1791 BYTE_REG_BITS_ON(TESTCFG_HBDIS, ®s->TESTCFG);
1794 * Get link status from PHYSR0
1796 linked = readb(®s->PHYSR0) & PHYSR0_LINKGD;
1799 vptr->mii_status &= ~VELOCITY_LINK_FAIL;
1800 netif_carrier_on(vptr->dev);
1802 vptr->mii_status |= VELOCITY_LINK_FAIL;
1803 netif_carrier_off(vptr->dev);
1806 velocity_print_link_status(vptr);
1807 enable_flow_control_ability(vptr);
1810 * Re-enable auto-polling because SRCI will disable
1814 enable_mii_autopoll(regs);
1816 if (vptr->mii_status & VELOCITY_LINK_FAIL)
1817 netif_stop_queue(vptr->dev);
1819 netif_wake_queue(vptr->dev);
1822 if (status & ISR_MIBFI)
1823 velocity_update_hw_mibs(vptr);
1824 if (status & ISR_LSTEI)
1825 mac_rx_queue_wake(vptr->mac_regs);
1829 * tx_srv - transmit interrupt service
1833 * Scan the queues looking for transmitted packets that
1834 * we can complete and clean up. Update any statistics as
1837 static int velocity_tx_srv(struct velocity_info *vptr, u32 status)
1844 struct velocity_td_info *tdinfo;
1845 struct net_device_stats *stats = &vptr->dev->stats;
1847 for (qnum = 0; qnum < vptr->tx.numq; qnum++) {
1848 for (idx = vptr->tx.tail[qnum]; vptr->tx.used[qnum] > 0;
1849 idx = (idx + 1) % vptr->options.numtx) {
1854 td = &(vptr->tx.rings[qnum][idx]);
1855 tdinfo = &(vptr->tx.infos[qnum][idx]);
1857 if (td->tdesc0.len & OWNED_BY_NIC)
1863 if (td->tdesc0.TSR & TSR0_TERR) {
1865 stats->tx_dropped++;
1866 if (td->tdesc0.TSR & TSR0_CDH)
1867 stats->tx_heartbeat_errors++;
1868 if (td->tdesc0.TSR & TSR0_CRS)
1869 stats->tx_carrier_errors++;
1870 if (td->tdesc0.TSR & TSR0_ABT)
1871 stats->tx_aborted_errors++;
1872 if (td->tdesc0.TSR & TSR0_OWC)
1873 stats->tx_window_errors++;
1875 stats->tx_packets++;
1876 stats->tx_bytes += tdinfo->skb->len;
1878 velocity_free_tx_buf(vptr, tdinfo);
1879 vptr->tx.used[qnum]--;
1881 vptr->tx.tail[qnum] = idx;
1883 if (AVAIL_TD(vptr, qnum) < 1)
1887 * Look to see if we should kick the transmit network
1888 * layer for more work.
1890 if (netif_queue_stopped(vptr->dev) && (full == 0)
1891 && (!(vptr->mii_status & VELOCITY_LINK_FAIL))) {
1892 netif_wake_queue(vptr->dev);
1898 * velocity_rx_csum - checksum process
1899 * @rd: receive packet descriptor
1900 * @skb: network layer packet buffer
1902 * Process the status bits for the received packet and determine
1903 * if the checksum was computed and verified by the hardware
1905 static inline void velocity_rx_csum(struct rx_desc *rd, struct sk_buff *skb)
1907 skb->ip_summed = CHECKSUM_NONE;
1909 if (rd->rdesc1.CSM & CSM_IPKT) {
1910 if (rd->rdesc1.CSM & CSM_IPOK) {
1911 if ((rd->rdesc1.CSM & CSM_TCPKT) ||
1912 (rd->rdesc1.CSM & CSM_UDPKT)) {
1913 if (!(rd->rdesc1.CSM & CSM_TUPOK))
1916 skb->ip_summed = CHECKSUM_UNNECESSARY;
1922 * velocity_rx_copy - in place Rx copy for small packets
1923 * @rx_skb: network layer packet buffer candidate
1924 * @pkt_size: received data size
1925 * @rd: receive packet descriptor
1926 * @dev: network device
1928 * Replace the current skb that is scheduled for Rx processing by a
1929 * shorter, immediatly allocated skb, if the received packet is small
1930 * enough. This function returns a negative value if the received
1931 * packet is too big or if memory is exhausted.
1933 static int velocity_rx_copy(struct sk_buff **rx_skb, int pkt_size,
1934 struct velocity_info *vptr)
1937 if (pkt_size < rx_copybreak) {
1938 struct sk_buff *new_skb;
1940 new_skb = netdev_alloc_skb_ip_align(vptr->dev, pkt_size);
1942 new_skb->ip_summed = rx_skb[0]->ip_summed;
1943 skb_copy_from_linear_data(*rx_skb, new_skb->data, pkt_size);
1953 * velocity_iph_realign - IP header alignment
1954 * @vptr: velocity we are handling
1955 * @skb: network layer packet buffer
1956 * @pkt_size: received data size
1958 * Align IP header on a 2 bytes boundary. This behavior can be
1959 * configured by the user.
1961 static inline void velocity_iph_realign(struct velocity_info *vptr,
1962 struct sk_buff *skb, int pkt_size)
1964 if (vptr->flags & VELOCITY_FLAGS_IP_ALIGN) {
1965 memmove(skb->data + 2, skb->data, pkt_size);
1966 skb_reserve(skb, 2);
1972 * velocity_receive_frame - received packet processor
1973 * @vptr: velocity we are handling
1976 * A packet has arrived. We process the packet and if appropriate
1977 * pass the frame up the network stack
1979 static int velocity_receive_frame(struct velocity_info *vptr, int idx)
1981 void (*pci_action)(struct pci_dev *, dma_addr_t, size_t, int);
1982 struct net_device_stats *stats = &vptr->dev->stats;
1983 struct velocity_rd_info *rd_info = &(vptr->rx.info[idx]);
1984 struct rx_desc *rd = &(vptr->rx.ring[idx]);
1985 int pkt_len = le16_to_cpu(rd->rdesc0.len) & 0x3fff;
1986 struct sk_buff *skb;
1988 if (rd->rdesc0.RSR & (RSR_STP | RSR_EDP)) {
1989 VELOCITY_PRT(MSG_LEVEL_VERBOSE, KERN_ERR " %s : the received frame span multple RDs.\n", vptr->dev->name);
1990 stats->rx_length_errors++;
1994 if (rd->rdesc0.RSR & RSR_MAR)
1999 pci_dma_sync_single_for_cpu(vptr->pdev, rd_info->skb_dma,
2000 vptr->rx.buf_sz, PCI_DMA_FROMDEVICE);
2003 * Drop frame not meeting IEEE 802.3
2006 if (vptr->flags & VELOCITY_FLAGS_VAL_PKT_LEN) {
2007 if (rd->rdesc0.RSR & RSR_RL) {
2008 stats->rx_length_errors++;
2013 pci_action = pci_dma_sync_single_for_device;
2015 velocity_rx_csum(rd, skb);
2017 if (velocity_rx_copy(&skb, pkt_len, vptr) < 0) {
2018 velocity_iph_realign(vptr, skb, pkt_len);
2019 pci_action = pci_unmap_single;
2020 rd_info->skb = NULL;
2023 pci_action(vptr->pdev, rd_info->skb_dma, vptr->rx.buf_sz,
2024 PCI_DMA_FROMDEVICE);
2026 skb_put(skb, pkt_len - 4);
2027 skb->protocol = eth_type_trans(skb, vptr->dev);
2029 if (vptr->vlgrp && (rd->rdesc0.RSR & RSR_DETAG)) {
2030 vlan_hwaccel_rx(skb, vptr->vlgrp,
2031 swab16(le16_to_cpu(rd->rdesc1.PQTAG)));
2035 stats->rx_bytes += pkt_len;
2042 * velocity_rx_srv - service RX interrupt
2044 * @status: adapter status (unused)
2046 * Walk the receive ring of the velocity adapter and remove
2047 * any received packets from the receive queue. Hand the ring
2048 * slots back to the adapter for reuse.
2050 static int velocity_rx_srv(struct velocity_info *vptr, int status)
2052 struct net_device_stats *stats = &vptr->dev->stats;
2053 int rd_curr = vptr->rx.curr;
2057 struct rx_desc *rd = vptr->rx.ring + rd_curr;
2059 if (!vptr->rx.info[rd_curr].skb)
2062 if (rd->rdesc0.len & OWNED_BY_NIC)
2068 * Don't drop CE or RL error frame although RXOK is off
2070 if (rd->rdesc0.RSR & (RSR_RXOK | RSR_CE | RSR_RL)) {
2071 if (velocity_receive_frame(vptr, rd_curr) < 0)
2072 stats->rx_dropped++;
2074 if (rd->rdesc0.RSR & RSR_CRC)
2075 stats->rx_crc_errors++;
2076 if (rd->rdesc0.RSR & RSR_FAE)
2077 stats->rx_frame_errors++;
2079 stats->rx_dropped++;
2082 rd->size |= RX_INTEN;
2085 if (rd_curr >= vptr->options.numrx)
2087 } while (++works <= 15);
2089 vptr->rx.curr = rd_curr;
2091 if ((works > 0) && (velocity_rx_refill(vptr) > 0))
2092 velocity_give_many_rx_descs(vptr);
2100 * velocity_intr - interrupt callback
2101 * @irq: interrupt number
2102 * @dev_instance: interrupting device
2104 * Called whenever an interrupt is generated by the velocity
2105 * adapter IRQ line. We may not be the source of the interrupt
2106 * and need to identify initially if we are, and if not exit as
2107 * efficiently as possible.
2109 static irqreturn_t velocity_intr(int irq, void *dev_instance)
2111 struct net_device *dev = dev_instance;
2112 struct velocity_info *vptr = netdev_priv(dev);
2117 spin_lock(&vptr->lock);
2118 isr_status = mac_read_isr(vptr->mac_regs);
2121 if (isr_status == 0) {
2122 spin_unlock(&vptr->lock);
2126 mac_disable_int(vptr->mac_regs);
2129 * Keep processing the ISR until we have completed
2130 * processing and the isr_status becomes zero
2133 while (isr_status != 0) {
2134 mac_write_isr(vptr->mac_regs, isr_status);
2135 if (isr_status & (~(ISR_PRXI | ISR_PPRXI | ISR_PTXI | ISR_PPTXI)))
2136 velocity_error(vptr, isr_status);
2137 if (isr_status & (ISR_PRXI | ISR_PPRXI))
2138 max_count += velocity_rx_srv(vptr, isr_status);
2139 if (isr_status & (ISR_PTXI | ISR_PPTXI))
2140 max_count += velocity_tx_srv(vptr, isr_status);
2141 isr_status = mac_read_isr(vptr->mac_regs);
2142 if (max_count > vptr->options.int_works) {
2143 printk(KERN_WARNING "%s: excessive work at interrupt.\n",
2148 spin_unlock(&vptr->lock);
2149 mac_enable_int(vptr->mac_regs);
2155 * velocity_open - interface activation callback
2156 * @dev: network layer device to open
2158 * Called when the network layer brings the interface up. Returns
2159 * a negative posix error code on failure, or zero on success.
2161 * All the ring allocation and set up is done on open for this
2162 * adapter to minimise memory usage when inactive
2164 static int velocity_open(struct net_device *dev)
2166 struct velocity_info *vptr = netdev_priv(dev);
2169 ret = velocity_init_rings(vptr, dev->mtu);
2173 /* Ensure chip is running */
2174 pci_set_power_state(vptr->pdev, PCI_D0);
2176 velocity_give_many_rx_descs(vptr);
2178 velocity_init_registers(vptr, VELOCITY_INIT_COLD);
2180 ret = request_irq(vptr->pdev->irq, velocity_intr, IRQF_SHARED,
2183 /* Power down the chip */
2184 pci_set_power_state(vptr->pdev, PCI_D3hot);
2185 velocity_free_rings(vptr);
2189 mac_enable_int(vptr->mac_regs);
2190 netif_start_queue(dev);
2191 vptr->flags |= VELOCITY_FLAGS_OPENED;
2197 * velocity_shutdown - shut down the chip
2198 * @vptr: velocity to deactivate
2200 * Shuts down the internal operations of the velocity and
2201 * disables interrupts, autopolling, transmit and receive
2203 static void velocity_shutdown(struct velocity_info *vptr)
2205 struct mac_regs __iomem *regs = vptr->mac_regs;
2206 mac_disable_int(regs);
2207 writel(CR0_STOP, ®s->CR0Set);
2208 writew(0xFFFF, ®s->TDCSRClr);
2209 writeb(0xFF, ®s->RDCSRClr);
2210 safe_disable_mii_autopoll(regs);
2211 mac_clear_isr(regs);
2215 * velocity_change_mtu - MTU change callback
2216 * @dev: network device
2217 * @new_mtu: desired MTU
2219 * Handle requests from the networking layer for MTU change on
2220 * this interface. It gets called on a change by the network layer.
2221 * Return zero for success or negative posix error code.
2223 static int velocity_change_mtu(struct net_device *dev, int new_mtu)
2225 struct velocity_info *vptr = netdev_priv(dev);
2228 if ((new_mtu < VELOCITY_MIN_MTU) || new_mtu > (VELOCITY_MAX_MTU)) {
2229 VELOCITY_PRT(MSG_LEVEL_ERR, KERN_NOTICE "%s: Invalid MTU.\n",
2235 if (!netif_running(dev)) {
2240 if (dev->mtu != new_mtu) {
2241 struct velocity_info *tmp_vptr;
2242 unsigned long flags;
2246 tmp_vptr = kzalloc(sizeof(*tmp_vptr), GFP_KERNEL);
2252 tmp_vptr->dev = dev;
2253 tmp_vptr->pdev = vptr->pdev;
2254 tmp_vptr->options = vptr->options;
2255 tmp_vptr->tx.numq = vptr->tx.numq;
2257 ret = velocity_init_rings(tmp_vptr, new_mtu);
2259 goto out_free_tmp_vptr_1;
2261 spin_lock_irqsave(&vptr->lock, flags);
2263 netif_stop_queue(dev);
2264 velocity_shutdown(vptr);
2269 vptr->rx = tmp_vptr->rx;
2270 vptr->tx = tmp_vptr->tx;
2277 velocity_give_many_rx_descs(vptr);
2279 velocity_init_registers(vptr, VELOCITY_INIT_COLD);
2281 mac_enable_int(vptr->mac_regs);
2282 netif_start_queue(dev);
2284 spin_unlock_irqrestore(&vptr->lock, flags);
2286 velocity_free_rings(tmp_vptr);
2288 out_free_tmp_vptr_1:
2296 * velocity_mii_ioctl - MII ioctl handler
2297 * @dev: network device
2298 * @ifr: the ifreq block for the ioctl
2301 * Process MII requests made via ioctl from the network layer. These
2302 * are used by tools like kudzu to interrogate the link state of the
2305 static int velocity_mii_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
2307 struct velocity_info *vptr = netdev_priv(dev);
2308 struct mac_regs __iomem *regs = vptr->mac_regs;
2309 unsigned long flags;
2310 struct mii_ioctl_data *miidata = if_mii(ifr);
2315 miidata->phy_id = readb(®s->MIIADR) & 0x1f;
2318 if (velocity_mii_read(vptr->mac_regs, miidata->reg_num & 0x1f, &(miidata->val_out)) < 0)
2322 spin_lock_irqsave(&vptr->lock, flags);
2323 err = velocity_mii_write(vptr->mac_regs, miidata->reg_num & 0x1f, miidata->val_in);
2324 spin_unlock_irqrestore(&vptr->lock, flags);
2325 check_connection_type(vptr->mac_regs);
2337 * velocity_ioctl - ioctl entry point
2338 * @dev: network device
2339 * @rq: interface request ioctl
2340 * @cmd: command code
2342 * Called when the user issues an ioctl request to the network
2343 * device in question. The velocity interface supports MII.
2345 static int velocity_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
2347 struct velocity_info *vptr = netdev_priv(dev);
2350 /* If we are asked for information and the device is power
2351 saving then we need to bring the device back up to talk to it */
2353 if (!netif_running(dev))
2354 pci_set_power_state(vptr->pdev, PCI_D0);
2357 case SIOCGMIIPHY: /* Get address of MII PHY in use. */
2358 case SIOCGMIIREG: /* Read MII PHY register. */
2359 case SIOCSMIIREG: /* Write to MII PHY register. */
2360 ret = velocity_mii_ioctl(dev, rq, cmd);
2366 if (!netif_running(dev))
2367 pci_set_power_state(vptr->pdev, PCI_D3hot);
2374 * velocity_get_status - statistics callback
2375 * @dev: network device
2377 * Callback from the network layer to allow driver statistics
2378 * to be resynchronized with hardware collected state. In the
2379 * case of the velocity we need to pull the MIB counters from
2380 * the hardware into the counters before letting the network
2381 * layer display them.
2383 static struct net_device_stats *velocity_get_stats(struct net_device *dev)
2385 struct velocity_info *vptr = netdev_priv(dev);
2387 /* If the hardware is down, don't touch MII */
2388 if (!netif_running(dev))
2391 spin_lock_irq(&vptr->lock);
2392 velocity_update_hw_mibs(vptr);
2393 spin_unlock_irq(&vptr->lock);
2395 dev->stats.rx_packets = vptr->mib_counter[HW_MIB_ifRxAllPkts];
2396 dev->stats.rx_errors = vptr->mib_counter[HW_MIB_ifRxErrorPkts];
2397 dev->stats.rx_length_errors = vptr->mib_counter[HW_MIB_ifInRangeLengthErrors];
2399 // unsigned long rx_dropped; /* no space in linux buffers */
2400 dev->stats.collisions = vptr->mib_counter[HW_MIB_ifTxEtherCollisions];
2401 /* detailed rx_errors: */
2402 // unsigned long rx_length_errors;
2403 // unsigned long rx_over_errors; /* receiver ring buff overflow */
2404 dev->stats.rx_crc_errors = vptr->mib_counter[HW_MIB_ifRxPktCRCE];
2405 // unsigned long rx_frame_errors; /* recv'd frame alignment error */
2406 // unsigned long rx_fifo_errors; /* recv'r fifo overrun */
2407 // unsigned long rx_missed_errors; /* receiver missed packet */
2409 /* detailed tx_errors */
2410 // unsigned long tx_fifo_errors;
2416 * velocity_close - close adapter callback
2417 * @dev: network device
2419 * Callback from the network layer when the velocity is being
2420 * deactivated by the network layer
2422 static int velocity_close(struct net_device *dev)
2424 struct velocity_info *vptr = netdev_priv(dev);
2426 netif_stop_queue(dev);
2427 velocity_shutdown(vptr);
2429 if (vptr->flags & VELOCITY_FLAGS_WOL_ENABLED)
2430 velocity_get_ip(vptr);
2432 free_irq(dev->irq, dev);
2434 /* Power down the chip */
2435 pci_set_power_state(vptr->pdev, PCI_D3hot);
2437 velocity_free_rings(vptr);
2439 vptr->flags &= (~VELOCITY_FLAGS_OPENED);
2444 * velocity_xmit - transmit packet callback
2445 * @skb: buffer to transmit
2446 * @dev: network device
2448 * Called by the networ layer to request a packet is queued to
2449 * the velocity. Returns zero on success.
2451 static netdev_tx_t velocity_xmit(struct sk_buff *skb,
2452 struct net_device *dev)
2454 struct velocity_info *vptr = netdev_priv(dev);
2456 struct tx_desc *td_ptr;
2457 struct velocity_td_info *tdinfo;
2458 unsigned long flags;
2463 if (skb_padto(skb, ETH_ZLEN))
2465 pktlen = max_t(unsigned int, skb->len, ETH_ZLEN);
2467 len = cpu_to_le16(pktlen);
2469 spin_lock_irqsave(&vptr->lock, flags);
2471 index = vptr->tx.curr[qnum];
2472 td_ptr = &(vptr->tx.rings[qnum][index]);
2473 tdinfo = &(vptr->tx.infos[qnum][index]);
2475 td_ptr->tdesc1.TCR = TCR0_TIC;
2476 td_ptr->td_buf[0].size &= ~TD_QUEUE;
2479 * Map the linear network buffer into PCI space and
2480 * add it to the transmit ring.
2483 tdinfo->skb_dma[0] = pci_map_single(vptr->pdev, skb->data, pktlen, PCI_DMA_TODEVICE);
2484 td_ptr->tdesc0.len = len;
2485 td_ptr->td_buf[0].pa_low = cpu_to_le32(tdinfo->skb_dma[0]);
2486 td_ptr->td_buf[0].pa_high = 0;
2487 td_ptr->td_buf[0].size = len;
2488 tdinfo->nskb_dma = 1;
2490 td_ptr->tdesc1.cmd = TCPLS_NORMAL + (tdinfo->nskb_dma + 1) * 16;
2492 if (vptr->vlgrp && vlan_tx_tag_present(skb)) {
2493 td_ptr->tdesc1.vlan = cpu_to_le16(vlan_tx_tag_get(skb));
2494 td_ptr->tdesc1.TCR |= TCR0_VETAG;
2498 * Handle hardware checksum
2500 if ((vptr->flags & VELOCITY_FLAGS_TX_CSUM)
2501 && (skb->ip_summed == CHECKSUM_PARTIAL)) {
2502 const struct iphdr *ip = ip_hdr(skb);
2503 if (ip->protocol == IPPROTO_TCP)
2504 td_ptr->tdesc1.TCR |= TCR0_TCPCK;
2505 else if (ip->protocol == IPPROTO_UDP)
2506 td_ptr->tdesc1.TCR |= (TCR0_UDPCK);
2507 td_ptr->tdesc1.TCR |= TCR0_IPCK;
2511 int prev = index - 1;
2514 prev = vptr->options.numtx - 1;
2515 td_ptr->tdesc0.len |= OWNED_BY_NIC;
2516 vptr->tx.used[qnum]++;
2517 vptr->tx.curr[qnum] = (index + 1) % vptr->options.numtx;
2519 if (AVAIL_TD(vptr, qnum) < 1)
2520 netif_stop_queue(dev);
2522 td_ptr = &(vptr->tx.rings[qnum][prev]);
2523 td_ptr->td_buf[0].size |= TD_QUEUE;
2524 mac_tx_queue_wake(vptr->mac_regs, qnum);
2526 dev->trans_start = jiffies;
2527 spin_unlock_irqrestore(&vptr->lock, flags);
2529 return NETDEV_TX_OK;
2533 static const struct net_device_ops velocity_netdev_ops = {
2534 .ndo_open = velocity_open,
2535 .ndo_stop = velocity_close,
2536 .ndo_start_xmit = velocity_xmit,
2537 .ndo_get_stats = velocity_get_stats,
2538 .ndo_validate_addr = eth_validate_addr,
2539 .ndo_set_mac_address = eth_mac_addr,
2540 .ndo_set_multicast_list = velocity_set_multi,
2541 .ndo_change_mtu = velocity_change_mtu,
2542 .ndo_do_ioctl = velocity_ioctl,
2543 .ndo_vlan_rx_add_vid = velocity_vlan_rx_add_vid,
2544 .ndo_vlan_rx_kill_vid = velocity_vlan_rx_kill_vid,
2545 .ndo_vlan_rx_register = velocity_vlan_rx_register,
2549 * velocity_init_info - init private data
2551 * @vptr: Velocity info
2554 * Set up the initial velocity_info struct for the device that has been
2557 static void __devinit velocity_init_info(struct pci_dev *pdev,
2558 struct velocity_info *vptr,
2559 const struct velocity_info_tbl *info)
2561 memset(vptr, 0, sizeof(struct velocity_info));
2564 vptr->chip_id = info->chip_id;
2565 vptr->tx.numq = info->txqueue;
2566 vptr->multicast_limit = MCAM_SIZE;
2567 spin_lock_init(&vptr->lock);
2571 * velocity_get_pci_info - retrieve PCI info for device
2572 * @vptr: velocity device
2573 * @pdev: PCI device it matches
2575 * Retrieve the PCI configuration space data that interests us from
2576 * the kernel PCI layer
2578 static int __devinit velocity_get_pci_info(struct velocity_info *vptr, struct pci_dev *pdev)
2580 vptr->rev_id = pdev->revision;
2582 pci_set_master(pdev);
2584 vptr->ioaddr = pci_resource_start(pdev, 0);
2585 vptr->memaddr = pci_resource_start(pdev, 1);
2587 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_IO)) {
2589 "region #0 is not an I/O resource, aborting.\n");
2593 if ((pci_resource_flags(pdev, 1) & IORESOURCE_IO)) {
2595 "region #1 is an I/O resource, aborting.\n");
2599 if (pci_resource_len(pdev, 1) < VELOCITY_IO_SIZE) {
2600 dev_err(&pdev->dev, "region #1 is too small.\n");
2609 * velocity_print_info - per driver data
2612 * Print per driver data as the kernel driver finds Velocity
2615 static void __devinit velocity_print_info(struct velocity_info *vptr)
2617 struct net_device *dev = vptr->dev;
2619 printk(KERN_INFO "%s: %s\n", dev->name, get_chip_name(vptr->chip_id));
2620 printk(KERN_INFO "%s: Ethernet Address: %2.2X:%2.2X:%2.2X:%2.2X:%2.2X:%2.2X\n",
2622 dev->dev_addr[0], dev->dev_addr[1], dev->dev_addr[2],
2623 dev->dev_addr[3], dev->dev_addr[4], dev->dev_addr[5]);
2626 static u32 velocity_get_link(struct net_device *dev)
2628 struct velocity_info *vptr = netdev_priv(dev);
2629 struct mac_regs __iomem *regs = vptr->mac_regs;
2630 return BYTE_REG_BITS_IS_ON(PHYSR0_LINKGD, ®s->PHYSR0) ? 1 : 0;
2635 * velocity_found1 - set up discovered velocity card
2637 * @ent: PCI device table entry that matched
2639 * Configure a discovered adapter from scratch. Return a negative
2640 * errno error code on failure paths.
2642 static int __devinit velocity_found1(struct pci_dev *pdev, const struct pci_device_id *ent)
2644 static int first = 1;
2645 struct net_device *dev;
2647 const char *drv_string;
2648 const struct velocity_info_tbl *info = &chip_info_table[ent->driver_data];
2649 struct velocity_info *vptr;
2650 struct mac_regs __iomem *regs;
2653 /* FIXME: this driver, like almost all other ethernet drivers,
2654 * can support more than MAX_UNITS.
2656 if (velocity_nics >= MAX_UNITS) {
2657 dev_notice(&pdev->dev, "already found %d NICs.\n",
2662 dev = alloc_etherdev(sizeof(struct velocity_info));
2664 dev_err(&pdev->dev, "allocate net device failed.\n");
2668 /* Chain it all together */
2670 SET_NETDEV_DEV(dev, &pdev->dev);
2671 vptr = netdev_priv(dev);
2675 printk(KERN_INFO "%s Ver. %s\n",
2676 VELOCITY_FULL_DRV_NAM, VELOCITY_VERSION);
2677 printk(KERN_INFO "Copyright (c) 2002, 2003 VIA Networking Technologies, Inc.\n");
2678 printk(KERN_INFO "Copyright (c) 2004 Red Hat Inc.\n");
2682 velocity_init_info(pdev, vptr, info);
2686 dev->irq = pdev->irq;
2688 ret = pci_enable_device(pdev);
2692 ret = velocity_get_pci_info(vptr, pdev);
2694 /* error message already printed */
2698 ret = pci_request_regions(pdev, VELOCITY_NAME);
2700 dev_err(&pdev->dev, "No PCI resources.\n");
2704 regs = ioremap(vptr->memaddr, VELOCITY_IO_SIZE);
2707 goto err_release_res;
2710 vptr->mac_regs = regs;
2712 mac_wol_reset(regs);
2714 dev->base_addr = vptr->ioaddr;
2716 for (i = 0; i < 6; i++)
2717 dev->dev_addr[i] = readb(®s->PAR[i]);
2720 drv_string = dev_driver_string(&pdev->dev);
2722 velocity_get_options(&vptr->options, velocity_nics, drv_string);
2725 * Mask out the options cannot be set to the chip
2728 vptr->options.flags &= info->flags;
2731 * Enable the chip specified capbilities
2734 vptr->flags = vptr->options.flags | (info->flags & 0xFF000000UL);
2736 vptr->wol_opts = vptr->options.wol_opts;
2737 vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED;
2739 vptr->phy_id = MII_GET_PHY_ID(vptr->mac_regs);
2741 dev->irq = pdev->irq;
2742 dev->netdev_ops = &velocity_netdev_ops;
2743 dev->ethtool_ops = &velocity_ethtool_ops;
2745 dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_FILTER |
2748 if (vptr->flags & VELOCITY_FLAGS_TX_CSUM)
2749 dev->features |= NETIF_F_IP_CSUM;
2751 ret = register_netdev(dev);
2755 if (!velocity_get_link(dev)) {
2756 netif_carrier_off(dev);
2757 vptr->mii_status |= VELOCITY_LINK_FAIL;
2760 velocity_print_info(vptr);
2761 pci_set_drvdata(pdev, dev);
2763 /* and leave the chip powered down */
2765 pci_set_power_state(pdev, PCI_D3hot);
2773 pci_release_regions(pdev);
2775 pci_disable_device(pdev);
2784 * wol_calc_crc - WOL CRC
2785 * @pattern: data pattern
2786 * @mask_pattern: mask
2788 * Compute the wake on lan crc hashes for the packet header
2789 * we are interested in.
2791 static u16 wol_calc_crc(int size, u8 *pattern, u8 *mask_pattern)
2797 for (i = 0; i < size; i++) {
2798 mask = mask_pattern[i];
2800 /* Skip this loop if the mask equals to zero */
2804 for (j = 0; j < 8; j++) {
2805 if ((mask & 0x01) == 0) {
2810 crc = crc_ccitt(crc, &(pattern[i * 8 + j]), 1);
2813 /* Finally, invert the result once to get the correct data */
2815 return bitrev32(crc) >> 16;
2819 * velocity_set_wol - set up for wake on lan
2820 * @vptr: velocity to set WOL status on
2822 * Set a card up for wake on lan either by unicast or by
2825 * FIXME: check static buffer is safe here
2827 static int velocity_set_wol(struct velocity_info *vptr)
2829 struct mac_regs __iomem *regs = vptr->mac_regs;
2833 static u32 mask_pattern[2][4] = {
2834 {0x00203000, 0x000003C0, 0x00000000, 0x0000000}, /* ARP */
2835 {0xfffff000, 0xffffffff, 0xffffffff, 0x000ffff} /* Magic Packet */
2838 writew(0xFFFF, ®s->WOLCRClr);
2839 writeb(WOLCFG_SAB | WOLCFG_SAM, ®s->WOLCFGSet);
2840 writew(WOLCR_MAGIC_EN, ®s->WOLCRSet);
2843 if (vptr->wol_opts & VELOCITY_WOL_PHY)
2844 writew((WOLCR_LINKON_EN|WOLCR_LINKOFF_EN), ®s->WOLCRSet);
2847 if (vptr->wol_opts & VELOCITY_WOL_UCAST)
2848 writew(WOLCR_UNICAST_EN, ®s->WOLCRSet);
2850 if (vptr->wol_opts & VELOCITY_WOL_ARP) {
2851 struct arp_packet *arp = (struct arp_packet *) buf;
2853 memset(buf, 0, sizeof(struct arp_packet) + 7);
2855 for (i = 0; i < 4; i++)
2856 writel(mask_pattern[0][i], ®s->ByteMask[0][i]);
2858 arp->type = htons(ETH_P_ARP);
2859 arp->ar_op = htons(1);
2861 memcpy(arp->ar_tip, vptr->ip_addr, 4);
2863 crc = wol_calc_crc((sizeof(struct arp_packet) + 7) / 8, buf,
2864 (u8 *) & mask_pattern[0][0]);
2866 writew(crc, ®s->PatternCRC[0]);
2867 writew(WOLCR_ARP_EN, ®s->WOLCRSet);
2870 BYTE_REG_BITS_ON(PWCFG_WOLTYPE, ®s->PWCFGSet);
2871 BYTE_REG_BITS_ON(PWCFG_LEGACY_WOLEN, ®s->PWCFGSet);
2873 writew(0x0FFF, ®s->WOLSRClr);
2875 if (vptr->mii_status & VELOCITY_AUTONEG_ENABLE) {
2876 if (PHYID_GET_PHY_ID(vptr->phy_id) == PHYID_CICADA_CS8201)
2877 MII_REG_BITS_ON(AUXCR_MDPPS, MII_REG_AUXCR, vptr->mac_regs);
2879 MII_REG_BITS_OFF(G1000CR_1000FD | G1000CR_1000, MII_REG_G1000CR, vptr->mac_regs);
2882 if (vptr->mii_status & VELOCITY_SPEED_1000)
2883 MII_REG_BITS_ON(BMCR_REAUTO, MII_REG_BMCR, vptr->mac_regs);
2885 BYTE_REG_BITS_ON(CHIPGCR_FCMODE, ®s->CHIPGCR);
2889 GCR = readb(®s->CHIPGCR);
2890 GCR = (GCR & ~CHIPGCR_FCGMII) | CHIPGCR_FCFDX;
2891 writeb(GCR, ®s->CHIPGCR);
2894 BYTE_REG_BITS_OFF(ISR_PWEI, ®s->ISR);
2895 /* Turn on SWPTAG just before entering power mode */
2896 BYTE_REG_BITS_ON(STICKHW_SWPTAG, ®s->STICKHW);
2897 /* Go to bed ..... */
2898 BYTE_REG_BITS_ON((STICKHW_DS1 | STICKHW_DS0), ®s->STICKHW);
2904 * velocity_save_context - save registers
2906 * @context: buffer for stored context
2908 * Retrieve the current configuration from the velocity hardware
2909 * and stash it in the context structure, for use by the context
2910 * restore functions. This allows us to save things we need across
2913 static void velocity_save_context(struct velocity_info *vptr, struct velocity_context *context)
2915 struct mac_regs __iomem *regs = vptr->mac_regs;
2917 u8 __iomem *ptr = (u8 __iomem *)regs;
2919 for (i = MAC_REG_PAR; i < MAC_REG_CR0_CLR; i += 4)
2920 *((u32 *) (context->mac_reg + i)) = readl(ptr + i);
2922 for (i = MAC_REG_MAR; i < MAC_REG_TDCSR_CLR; i += 4)
2923 *((u32 *) (context->mac_reg + i)) = readl(ptr + i);
2925 for (i = MAC_REG_RDBASE_LO; i < MAC_REG_FIFO_TEST0; i += 4)
2926 *((u32 *) (context->mac_reg + i)) = readl(ptr + i);
2930 static int velocity_suspend(struct pci_dev *pdev, pm_message_t state)
2932 struct net_device *dev = pci_get_drvdata(pdev);
2933 struct velocity_info *vptr = netdev_priv(dev);
2934 unsigned long flags;
2936 if (!netif_running(vptr->dev))
2939 netif_device_detach(vptr->dev);
2941 spin_lock_irqsave(&vptr->lock, flags);
2942 pci_save_state(pdev);
2944 if (vptr->flags & VELOCITY_FLAGS_WOL_ENABLED) {
2945 velocity_get_ip(vptr);
2946 velocity_save_context(vptr, &vptr->context);
2947 velocity_shutdown(vptr);
2948 velocity_set_wol(vptr);
2949 pci_enable_wake(pdev, PCI_D3hot, 1);
2950 pci_set_power_state(pdev, PCI_D3hot);
2952 velocity_save_context(vptr, &vptr->context);
2953 velocity_shutdown(vptr);
2954 pci_disable_device(pdev);
2955 pci_set_power_state(pdev, pci_choose_state(pdev, state));
2958 pci_set_power_state(pdev, pci_choose_state(pdev, state));
2960 spin_unlock_irqrestore(&vptr->lock, flags);
2965 * velocity_restore_context - restore registers
2967 * @context: buffer for stored context
2969 * Reload the register configuration from the velocity context
2970 * created by velocity_save_context.
2972 static void velocity_restore_context(struct velocity_info *vptr, struct velocity_context *context)
2974 struct mac_regs __iomem *regs = vptr->mac_regs;
2976 u8 __iomem *ptr = (u8 __iomem *)regs;
2978 for (i = MAC_REG_PAR; i < MAC_REG_CR0_SET; i += 4)
2979 writel(*((u32 *) (context->mac_reg + i)), ptr + i);
2982 for (i = MAC_REG_CR1_SET; i < MAC_REG_CR0_CLR; i++) {
2984 writeb(~(*((u8 *) (context->mac_reg + i))), ptr + i + 4);
2986 writeb(*((u8 *) (context->mac_reg + i)), ptr + i);
2989 for (i = MAC_REG_MAR; i < MAC_REG_IMR; i += 4)
2990 writel(*((u32 *) (context->mac_reg + i)), ptr + i);
2992 for (i = MAC_REG_RDBASE_LO; i < MAC_REG_FIFO_TEST0; i += 4)
2993 writel(*((u32 *) (context->mac_reg + i)), ptr + i);
2995 for (i = MAC_REG_TDCSR_SET; i <= MAC_REG_RDCSR_SET; i++)
2996 writeb(*((u8 *) (context->mac_reg + i)), ptr + i);
2999 static int velocity_resume(struct pci_dev *pdev)
3001 struct net_device *dev = pci_get_drvdata(pdev);
3002 struct velocity_info *vptr = netdev_priv(dev);
3003 unsigned long flags;
3006 if (!netif_running(vptr->dev))
3009 pci_set_power_state(pdev, PCI_D0);
3010 pci_enable_wake(pdev, 0, 0);
3011 pci_restore_state(pdev);
3013 mac_wol_reset(vptr->mac_regs);
3015 spin_lock_irqsave(&vptr->lock, flags);
3016 velocity_restore_context(vptr, &vptr->context);
3017 velocity_init_registers(vptr, VELOCITY_INIT_WOL);
3018 mac_disable_int(vptr->mac_regs);
3020 velocity_tx_srv(vptr, 0);
3022 for (i = 0; i < vptr->tx.numq; i++) {
3023 if (vptr->tx.used[i])
3024 mac_tx_queue_wake(vptr->mac_regs, i);
3027 mac_enable_int(vptr->mac_regs);
3028 spin_unlock_irqrestore(&vptr->lock, flags);
3029 netif_device_attach(vptr->dev);
3036 * Definition for our device driver. The PCI layer interface
3037 * uses this to handle all our card discover and plugging
3039 static struct pci_driver velocity_driver = {
3040 .name = VELOCITY_NAME,
3041 .id_table = velocity_id_table,
3042 .probe = velocity_found1,
3043 .remove = __devexit_p(velocity_remove1),
3045 .suspend = velocity_suspend,
3046 .resume = velocity_resume,
3052 * velocity_ethtool_up - pre hook for ethtool
3053 * @dev: network device
3055 * Called before an ethtool operation. We need to make sure the
3056 * chip is out of D3 state before we poke at it.
3058 static int velocity_ethtool_up(struct net_device *dev)
3060 struct velocity_info *vptr = netdev_priv(dev);
3061 if (!netif_running(dev))
3062 pci_set_power_state(vptr->pdev, PCI_D0);
3067 * velocity_ethtool_down - post hook for ethtool
3068 * @dev: network device
3070 * Called after an ethtool operation. Restore the chip back to D3
3071 * state if it isn't running.
3073 static void velocity_ethtool_down(struct net_device *dev)
3075 struct velocity_info *vptr = netdev_priv(dev);
3076 if (!netif_running(dev))
3077 pci_set_power_state(vptr->pdev, PCI_D3hot);
3080 static int velocity_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
3082 struct velocity_info *vptr = netdev_priv(dev);
3083 struct mac_regs __iomem *regs = vptr->mac_regs;
3085 status = check_connection_type(vptr->mac_regs);
3087 cmd->supported = SUPPORTED_TP |
3089 SUPPORTED_10baseT_Half |
3090 SUPPORTED_10baseT_Full |
3091 SUPPORTED_100baseT_Half |
3092 SUPPORTED_100baseT_Full |
3093 SUPPORTED_1000baseT_Half |
3094 SUPPORTED_1000baseT_Full;
3095 if (status & VELOCITY_SPEED_1000)
3096 cmd->speed = SPEED_1000;
3097 else if (status & VELOCITY_SPEED_100)
3098 cmd->speed = SPEED_100;
3100 cmd->speed = SPEED_10;
3101 cmd->autoneg = (status & VELOCITY_AUTONEG_ENABLE) ? AUTONEG_ENABLE : AUTONEG_DISABLE;
3102 cmd->port = PORT_TP;
3103 cmd->transceiver = XCVR_INTERNAL;
3104 cmd->phy_address = readb(®s->MIIADR) & 0x1F;
3106 if (status & VELOCITY_DUPLEX_FULL)
3107 cmd->duplex = DUPLEX_FULL;
3109 cmd->duplex = DUPLEX_HALF;
3114 static int velocity_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
3116 struct velocity_info *vptr = netdev_priv(dev);
3121 curr_status = check_connection_type(vptr->mac_regs);
3122 curr_status &= (~VELOCITY_LINK_FAIL);
3124 new_status |= ((cmd->autoneg) ? VELOCITY_AUTONEG_ENABLE : 0);
3125 new_status |= ((cmd->speed == SPEED_100) ? VELOCITY_SPEED_100 : 0);
3126 new_status |= ((cmd->speed == SPEED_10) ? VELOCITY_SPEED_10 : 0);
3127 new_status |= ((cmd->duplex == DUPLEX_FULL) ? VELOCITY_DUPLEX_FULL : 0);
3129 if ((new_status & VELOCITY_AUTONEG_ENABLE) && (new_status != (curr_status | VELOCITY_AUTONEG_ENABLE)))
3132 velocity_set_media_mode(vptr, new_status);
3137 static void velocity_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
3139 struct velocity_info *vptr = netdev_priv(dev);
3140 strcpy(info->driver, VELOCITY_NAME);
3141 strcpy(info->version, VELOCITY_VERSION);
3142 strcpy(info->bus_info, pci_name(vptr->pdev));
3145 static void velocity_ethtool_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
3147 struct velocity_info *vptr = netdev_priv(dev);
3148 wol->supported = WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_ARP;
3149 wol->wolopts |= WAKE_MAGIC;
3151 if (vptr->wol_opts & VELOCITY_WOL_PHY)
3152 wol.wolopts|=WAKE_PHY;
3154 if (vptr->wol_opts & VELOCITY_WOL_UCAST)
3155 wol->wolopts |= WAKE_UCAST;
3156 if (vptr->wol_opts & VELOCITY_WOL_ARP)
3157 wol->wolopts |= WAKE_ARP;
3158 memcpy(&wol->sopass, vptr->wol_passwd, 6);
3161 static int velocity_ethtool_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
3163 struct velocity_info *vptr = netdev_priv(dev);
3165 if (!(wol->wolopts & (WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_ARP)))
3167 vptr->wol_opts = VELOCITY_WOL_MAGIC;
3170 if (wol.wolopts & WAKE_PHY) {
3171 vptr->wol_opts|=VELOCITY_WOL_PHY;
3172 vptr->flags |=VELOCITY_FLAGS_WOL_ENABLED;
3176 if (wol->wolopts & WAKE_MAGIC) {
3177 vptr->wol_opts |= VELOCITY_WOL_MAGIC;
3178 vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED;
3180 if (wol->wolopts & WAKE_UCAST) {
3181 vptr->wol_opts |= VELOCITY_WOL_UCAST;
3182 vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED;
3184 if (wol->wolopts & WAKE_ARP) {
3185 vptr->wol_opts |= VELOCITY_WOL_ARP;
3186 vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED;
3188 memcpy(vptr->wol_passwd, wol->sopass, 6);
3192 static u32 velocity_get_msglevel(struct net_device *dev)
3197 static void velocity_set_msglevel(struct net_device *dev, u32 value)
3202 static const struct ethtool_ops velocity_ethtool_ops = {
3203 .get_settings = velocity_get_settings,
3204 .set_settings = velocity_set_settings,
3205 .get_drvinfo = velocity_get_drvinfo,
3206 .get_wol = velocity_ethtool_get_wol,
3207 .set_wol = velocity_ethtool_set_wol,
3208 .get_msglevel = velocity_get_msglevel,
3209 .set_msglevel = velocity_set_msglevel,
3210 .get_link = velocity_get_link,
3211 .begin = velocity_ethtool_up,
3212 .complete = velocity_ethtool_down
3217 static int velocity_netdev_event(struct notifier_block *nb, unsigned long notification, void *ptr)
3219 struct in_ifaddr *ifa = (struct in_ifaddr *) ptr;
3220 struct net_device *dev = ifa->ifa_dev->dev;
3222 if (dev_net(dev) == &init_net &&
3223 dev->netdev_ops == &velocity_netdev_ops)
3224 velocity_get_ip(netdev_priv(dev));
3228 #endif /* CONFIG_INET */
3229 #endif /* CONFIG_PM */
3231 #if defined(CONFIG_PM) && defined(CONFIG_INET)
3232 static struct notifier_block velocity_inetaddr_notifier = {
3233 .notifier_call = velocity_netdev_event,
3236 static void velocity_register_notifier(void)
3238 register_inetaddr_notifier(&velocity_inetaddr_notifier);
3241 static void velocity_unregister_notifier(void)
3243 unregister_inetaddr_notifier(&velocity_inetaddr_notifier);
3248 #define velocity_register_notifier() do {} while (0)
3249 #define velocity_unregister_notifier() do {} while (0)
3251 #endif /* defined(CONFIG_PM) && defined(CONFIG_INET) */
3254 * velocity_init_module - load time function
3256 * Called when the velocity module is loaded. The PCI driver
3257 * is registered with the PCI layer, and in turn will call
3258 * the probe functions for each velocity adapter installed
3261 static int __init velocity_init_module(void)
3265 velocity_register_notifier();
3266 ret = pci_register_driver(&velocity_driver);
3268 velocity_unregister_notifier();
3273 * velocity_cleanup - module unload
3275 * When the velocity hardware is unloaded this function is called.
3276 * It will clean up the notifiers and the unregister the PCI
3277 * driver interface for this hardware. This in turn cleans up
3278 * all discovered interfaces before returning from the function
3280 static void __exit velocity_cleanup_module(void)
3282 velocity_unregister_notifier();
3283 pci_unregister_driver(&velocity_driver);
3286 module_init(velocity_init_module);
3287 module_exit(velocity_cleanup_module);