Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 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. |
| 5 | * |
| 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. |
| 9 | * |
| 10 | * TODO |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 11 | * rx_copybreak/alignment |
| 12 | * Scatter gather |
| 13 | * More testing |
| 14 | * |
| 15 | * The changes are (c) Copyright 2004, Red Hat Inc. <alan@redhat.com> |
| 16 | * Additional fixes and clean up: Francois Romieu |
| 17 | * |
| 18 | * This source has not been verified for use in safety critical systems. |
| 19 | * |
| 20 | * Please direct queries about the revamped driver to the linux-kernel |
| 21 | * list not VIA. |
| 22 | * |
| 23 | * Original code: |
| 24 | * |
| 25 | * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. |
| 26 | * All rights reserved. |
| 27 | * |
| 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 |
| 31 | * any later version. |
| 32 | * |
| 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 |
| 36 | * for more details. |
| 37 | * |
| 38 | * Author: Chuang Liang-Shing, AJ Jiang |
| 39 | * |
| 40 | * Date: Jan 24, 2003 |
| 41 | * |
| 42 | * MODULE_LICENSE("GPL"); |
| 43 | * |
| 44 | */ |
| 45 | |
| 46 | |
| 47 | #include <linux/module.h> |
| 48 | #include <linux/types.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 49 | #include <linux/init.h> |
| 50 | #include <linux/mm.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> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 62 | #include <linux/string.h> |
| 63 | #include <linux/wait.h> |
| 64 | #include <asm/io.h> |
| 65 | #include <linux/if.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 66 | #include <asm/uaccess.h> |
| 67 | #include <linux/proc_fs.h> |
| 68 | #include <linux/inetdevice.h> |
| 69 | #include <linux/reboot.h> |
| 70 | #include <linux/ethtool.h> |
| 71 | #include <linux/mii.h> |
| 72 | #include <linux/in.h> |
| 73 | #include <linux/if_arp.h> |
Stephen Hemminger | 501e4d2 | 2007-08-24 13:56:49 -0700 | [diff] [blame] | 74 | #include <linux/if_vlan.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 75 | #include <linux/ip.h> |
| 76 | #include <linux/tcp.h> |
| 77 | #include <linux/udp.h> |
| 78 | #include <linux/crc-ccitt.h> |
| 79 | #include <linux/crc32.h> |
| 80 | |
| 81 | #include "via-velocity.h" |
| 82 | |
| 83 | |
| 84 | static int velocity_nics = 0; |
| 85 | static int msglevel = MSG_LEVEL_INFO; |
| 86 | |
Stephen Hemminger | 01faccb | 2007-08-24 14:40:45 -0700 | [diff] [blame] | 87 | /** |
| 88 | * mac_get_cam_mask - Read a CAM mask |
| 89 | * @regs: register block for this velocity |
| 90 | * @mask: buffer to store mask |
| 91 | * |
| 92 | * Fetch the mask bits of the selected CAM and store them into the |
| 93 | * provided mask buffer. |
| 94 | */ |
| 95 | |
| 96 | static void mac_get_cam_mask(struct mac_regs __iomem * regs, u8 * mask) |
| 97 | { |
| 98 | int i; |
| 99 | |
| 100 | /* Select CAM mask */ |
| 101 | BYTE_REG_BITS_SET(CAMCR_PS_CAM_MASK, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR); |
| 102 | |
| 103 | writeb(0, ®s->CAMADDR); |
| 104 | |
| 105 | /* read mask */ |
| 106 | for (i = 0; i < 8; i++) |
| 107 | *mask++ = readb(&(regs->MARCAM[i])); |
| 108 | |
| 109 | /* disable CAMEN */ |
| 110 | writeb(0, ®s->CAMADDR); |
| 111 | |
| 112 | /* Select mar */ |
| 113 | BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR); |
| 114 | |
| 115 | } |
| 116 | |
| 117 | |
| 118 | /** |
| 119 | * mac_set_cam_mask - Set a CAM mask |
| 120 | * @regs: register block for this velocity |
| 121 | * @mask: CAM mask to load |
| 122 | * |
| 123 | * Store a new mask into a CAM |
| 124 | */ |
| 125 | |
| 126 | static void mac_set_cam_mask(struct mac_regs __iomem * regs, u8 * mask) |
| 127 | { |
| 128 | int i; |
| 129 | /* Select CAM mask */ |
| 130 | BYTE_REG_BITS_SET(CAMCR_PS_CAM_MASK, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR); |
| 131 | |
| 132 | writeb(CAMADDR_CAMEN, ®s->CAMADDR); |
| 133 | |
| 134 | for (i = 0; i < 8; i++) { |
| 135 | writeb(*mask++, &(regs->MARCAM[i])); |
| 136 | } |
| 137 | /* disable CAMEN */ |
| 138 | writeb(0, ®s->CAMADDR); |
| 139 | |
| 140 | /* Select mar */ |
| 141 | BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR); |
| 142 | } |
| 143 | |
| 144 | static void mac_set_vlan_cam_mask(struct mac_regs __iomem * regs, u8 * mask) |
| 145 | { |
| 146 | int i; |
| 147 | /* Select CAM mask */ |
| 148 | BYTE_REG_BITS_SET(CAMCR_PS_CAM_MASK, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR); |
| 149 | |
| 150 | writeb(CAMADDR_CAMEN | CAMADDR_VCAMSL, ®s->CAMADDR); |
| 151 | |
| 152 | for (i = 0; i < 8; i++) { |
| 153 | writeb(*mask++, &(regs->MARCAM[i])); |
| 154 | } |
| 155 | /* disable CAMEN */ |
| 156 | writeb(0, ®s->CAMADDR); |
| 157 | |
| 158 | /* Select mar */ |
| 159 | BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR); |
| 160 | } |
| 161 | |
| 162 | /** |
| 163 | * mac_set_cam - set CAM data |
| 164 | * @regs: register block of this velocity |
| 165 | * @idx: Cam index |
| 166 | * @addr: 2 or 6 bytes of CAM data |
| 167 | * |
| 168 | * Load an address or vlan tag into a CAM |
| 169 | */ |
| 170 | |
| 171 | static void mac_set_cam(struct mac_regs __iomem * regs, int idx, const u8 *addr) |
| 172 | { |
| 173 | int i; |
| 174 | |
| 175 | /* Select CAM mask */ |
| 176 | BYTE_REG_BITS_SET(CAMCR_PS_CAM_DATA, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR); |
| 177 | |
| 178 | idx &= (64 - 1); |
| 179 | |
| 180 | writeb(CAMADDR_CAMEN | idx, ®s->CAMADDR); |
| 181 | |
| 182 | for (i = 0; i < 6; i++) { |
| 183 | writeb(*addr++, &(regs->MARCAM[i])); |
| 184 | } |
| 185 | BYTE_REG_BITS_ON(CAMCR_CAMWR, ®s->CAMCR); |
| 186 | |
| 187 | udelay(10); |
| 188 | |
| 189 | writeb(0, ®s->CAMADDR); |
| 190 | |
| 191 | /* Select mar */ |
| 192 | BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR); |
| 193 | } |
| 194 | |
| 195 | static void mac_set_vlan_cam(struct mac_regs __iomem * regs, int idx, |
| 196 | const u8 *addr) |
| 197 | { |
| 198 | |
| 199 | /* Select CAM mask */ |
| 200 | BYTE_REG_BITS_SET(CAMCR_PS_CAM_DATA, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR); |
| 201 | |
| 202 | idx &= (64 - 1); |
| 203 | |
| 204 | writeb(CAMADDR_CAMEN | CAMADDR_VCAMSL | idx, ®s->CAMADDR); |
| 205 | writew(*((u16 *) addr), ®s->MARCAM[0]); |
| 206 | |
| 207 | BYTE_REG_BITS_ON(CAMCR_CAMWR, ®s->CAMCR); |
| 208 | |
| 209 | udelay(10); |
| 210 | |
| 211 | writeb(0, ®s->CAMADDR); |
| 212 | |
| 213 | /* Select mar */ |
| 214 | BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR); |
| 215 | } |
| 216 | |
| 217 | |
| 218 | /** |
| 219 | * mac_wol_reset - reset WOL after exiting low power |
| 220 | * @regs: register block of this velocity |
| 221 | * |
| 222 | * Called after we drop out of wake on lan mode in order to |
| 223 | * reset the Wake on lan features. This function doesn't restore |
| 224 | * the rest of the logic from the result of sleep/wakeup |
| 225 | */ |
| 226 | |
| 227 | static void mac_wol_reset(struct mac_regs __iomem * regs) |
| 228 | { |
| 229 | |
| 230 | /* Turn off SWPTAG right after leaving power mode */ |
| 231 | BYTE_REG_BITS_OFF(STICKHW_SWPTAG, ®s->STICKHW); |
| 232 | /* clear sticky bits */ |
| 233 | BYTE_REG_BITS_OFF((STICKHW_DS1 | STICKHW_DS0), ®s->STICKHW); |
| 234 | |
| 235 | BYTE_REG_BITS_OFF(CHIPGCR_FCGMII, ®s->CHIPGCR); |
| 236 | BYTE_REG_BITS_OFF(CHIPGCR_FCMODE, ®s->CHIPGCR); |
| 237 | /* disable force PME-enable */ |
| 238 | writeb(WOLCFG_PMEOVR, ®s->WOLCFGClr); |
| 239 | /* disable power-event config bit */ |
| 240 | writew(0xFFFF, ®s->WOLCRClr); |
| 241 | /* clear power status */ |
| 242 | writew(0xFFFF, ®s->WOLSRClr); |
| 243 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 244 | |
| 245 | static int velocity_mii_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd); |
Jeff Garzik | 7282d49 | 2006-09-13 14:30:00 -0400 | [diff] [blame] | 246 | static const struct ethtool_ops velocity_ethtool_ops; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 247 | |
| 248 | /* |
| 249 | Define module options |
| 250 | */ |
| 251 | |
| 252 | MODULE_AUTHOR("VIA Networking Technologies, Inc."); |
| 253 | MODULE_LICENSE("GPL"); |
| 254 | MODULE_DESCRIPTION("VIA Networking Velocity Family Gigabit Ethernet Adapter Driver"); |
| 255 | |
| 256 | #define VELOCITY_PARAM(N,D) \ |
| 257 | static int N[MAX_UNITS]=OPTION_DEFAULT;\ |
| 258 | module_param_array(N, int, NULL, 0); \ |
| 259 | MODULE_PARM_DESC(N, D); |
| 260 | |
| 261 | #define RX_DESC_MIN 64 |
| 262 | #define RX_DESC_MAX 255 |
| 263 | #define RX_DESC_DEF 64 |
| 264 | VELOCITY_PARAM(RxDescriptors, "Number of receive descriptors"); |
| 265 | |
| 266 | #define TX_DESC_MIN 16 |
| 267 | #define TX_DESC_MAX 256 |
| 268 | #define TX_DESC_DEF 64 |
| 269 | VELOCITY_PARAM(TxDescriptors, "Number of transmit descriptors"); |
| 270 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 271 | #define RX_THRESH_MIN 0 |
| 272 | #define RX_THRESH_MAX 3 |
| 273 | #define RX_THRESH_DEF 0 |
| 274 | /* rx_thresh[] is used for controlling the receive fifo threshold. |
| 275 | 0: indicate the rxfifo threshold is 128 bytes. |
| 276 | 1: indicate the rxfifo threshold is 512 bytes. |
| 277 | 2: indicate the rxfifo threshold is 1024 bytes. |
| 278 | 3: indicate the rxfifo threshold is store & forward. |
| 279 | */ |
| 280 | VELOCITY_PARAM(rx_thresh, "Receive fifo threshold"); |
| 281 | |
| 282 | #define DMA_LENGTH_MIN 0 |
| 283 | #define DMA_LENGTH_MAX 7 |
| 284 | #define DMA_LENGTH_DEF 0 |
| 285 | |
| 286 | /* DMA_length[] is used for controlling the DMA length |
| 287 | 0: 8 DWORDs |
| 288 | 1: 16 DWORDs |
| 289 | 2: 32 DWORDs |
| 290 | 3: 64 DWORDs |
| 291 | 4: 128 DWORDs |
| 292 | 5: 256 DWORDs |
| 293 | 6: SF(flush till emply) |
| 294 | 7: SF(flush till emply) |
| 295 | */ |
| 296 | VELOCITY_PARAM(DMA_length, "DMA length"); |
| 297 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 298 | #define IP_ALIG_DEF 0 |
| 299 | /* IP_byte_align[] is used for IP header DWORD byte aligned |
| 300 | 0: indicate the IP header won't be DWORD byte aligned.(Default) . |
| 301 | 1: indicate the IP header will be DWORD byte aligned. |
| 302 | In some enviroment, the IP header should be DWORD byte aligned, |
| 303 | or the packet will be droped when we receive it. (eg: IPVS) |
| 304 | */ |
| 305 | VELOCITY_PARAM(IP_byte_align, "Enable IP header dword aligned"); |
| 306 | |
| 307 | #define TX_CSUM_DEF 1 |
| 308 | /* txcsum_offload[] is used for setting the checksum offload ability of NIC. |
| 309 | (We only support RX checksum offload now) |
| 310 | 0: disable csum_offload[checksum offload |
| 311 | 1: enable checksum offload. (Default) |
| 312 | */ |
| 313 | VELOCITY_PARAM(txcsum_offload, "Enable transmit packet checksum offload"); |
| 314 | |
| 315 | #define FLOW_CNTL_DEF 1 |
| 316 | #define FLOW_CNTL_MIN 1 |
| 317 | #define FLOW_CNTL_MAX 5 |
| 318 | |
| 319 | /* flow_control[] is used for setting the flow control ability of NIC. |
| 320 | 1: hardware deafult - AUTO (default). Use Hardware default value in ANAR. |
| 321 | 2: enable TX flow control. |
| 322 | 3: enable RX flow control. |
| 323 | 4: enable RX/TX flow control. |
| 324 | 5: disable |
| 325 | */ |
| 326 | VELOCITY_PARAM(flow_control, "Enable flow control ability"); |
| 327 | |
| 328 | #define MED_LNK_DEF 0 |
| 329 | #define MED_LNK_MIN 0 |
| 330 | #define MED_LNK_MAX 4 |
| 331 | /* speed_duplex[] is used for setting the speed and duplex mode of NIC. |
| 332 | 0: indicate autonegotiation for both speed and duplex mode |
| 333 | 1: indicate 100Mbps half duplex mode |
| 334 | 2: indicate 100Mbps full duplex mode |
| 335 | 3: indicate 10Mbps half duplex mode |
| 336 | 4: indicate 10Mbps full duplex mode |
| 337 | |
| 338 | Note: |
| 339 | if EEPROM have been set to the force mode, this option is ignored |
| 340 | by driver. |
| 341 | */ |
| 342 | VELOCITY_PARAM(speed_duplex, "Setting the speed and duplex mode"); |
| 343 | |
| 344 | #define VAL_PKT_LEN_DEF 0 |
| 345 | /* ValPktLen[] is used for setting the checksum offload ability of NIC. |
| 346 | 0: Receive frame with invalid layer 2 length (Default) |
| 347 | 1: Drop frame with invalid layer 2 length |
| 348 | */ |
| 349 | VELOCITY_PARAM(ValPktLen, "Receiving or Drop invalid 802.3 frame"); |
| 350 | |
| 351 | #define WOL_OPT_DEF 0 |
| 352 | #define WOL_OPT_MIN 0 |
| 353 | #define WOL_OPT_MAX 7 |
| 354 | /* wol_opts[] is used for controlling wake on lan behavior. |
| 355 | 0: Wake up if recevied a magic packet. (Default) |
| 356 | 1: Wake up if link status is on/off. |
| 357 | 2: Wake up if recevied an arp packet. |
| 358 | 4: Wake up if recevied any unicast packet. |
| 359 | Those value can be sumed up to support more than one option. |
| 360 | */ |
| 361 | VELOCITY_PARAM(wol_opts, "Wake On Lan options"); |
| 362 | |
| 363 | #define INT_WORKS_DEF 20 |
| 364 | #define INT_WORKS_MIN 10 |
| 365 | #define INT_WORKS_MAX 64 |
| 366 | |
| 367 | VELOCITY_PARAM(int_works, "Number of packets per interrupt services"); |
| 368 | |
| 369 | static int rx_copybreak = 200; |
| 370 | module_param(rx_copybreak, int, 0644); |
| 371 | MODULE_PARM_DESC(rx_copybreak, "Copy breakpoint for copy-only-tiny-frames"); |
| 372 | |
Jeff Garzik | cabb766 | 2006-06-27 09:25:28 -0400 | [diff] [blame] | 373 | static void velocity_init_info(struct pci_dev *pdev, struct velocity_info *vptr, |
| 374 | const struct velocity_info_tbl *info); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 375 | static int velocity_get_pci_info(struct velocity_info *, struct pci_dev *pdev); |
| 376 | static void velocity_print_info(struct velocity_info *vptr); |
| 377 | static int velocity_open(struct net_device *dev); |
| 378 | static int velocity_change_mtu(struct net_device *dev, int mtu); |
| 379 | static int velocity_xmit(struct sk_buff *skb, struct net_device *dev); |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 380 | static int velocity_intr(int irq, void *dev_instance); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 381 | static void velocity_set_multi(struct net_device *dev); |
| 382 | static struct net_device_stats *velocity_get_stats(struct net_device *dev); |
| 383 | static int velocity_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); |
| 384 | static int velocity_close(struct net_device *dev); |
| 385 | static int velocity_receive_frame(struct velocity_info *, int idx); |
| 386 | static int velocity_alloc_rx_buf(struct velocity_info *, int idx); |
| 387 | static void velocity_free_rd_ring(struct velocity_info *vptr); |
| 388 | static void velocity_free_tx_buf(struct velocity_info *vptr, struct velocity_td_info *); |
| 389 | static int velocity_soft_reset(struct velocity_info *vptr); |
| 390 | static void mii_init(struct velocity_info *vptr, u32 mii_status); |
Francois Romieu | 8a22ddd | 2006-06-23 00:47:06 +0200 | [diff] [blame] | 391 | static u32 velocity_get_link(struct net_device *dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 392 | static u32 velocity_get_opt_media_mode(struct velocity_info *vptr); |
| 393 | static void velocity_print_link_status(struct velocity_info *vptr); |
| 394 | static void safe_disable_mii_autopoll(struct mac_regs __iomem * regs); |
| 395 | static void velocity_shutdown(struct velocity_info *vptr); |
| 396 | static void enable_flow_control_ability(struct velocity_info *vptr); |
| 397 | static void enable_mii_autopoll(struct mac_regs __iomem * regs); |
| 398 | static int velocity_mii_read(struct mac_regs __iomem *, u8 byIdx, u16 * pdata); |
| 399 | static int velocity_mii_write(struct mac_regs __iomem *, u8 byMiiAddr, u16 data); |
| 400 | static u32 mii_check_media_mode(struct mac_regs __iomem * regs); |
| 401 | static u32 check_connection_type(struct mac_regs __iomem * regs); |
| 402 | static int velocity_set_media_mode(struct velocity_info *vptr, u32 mii_status); |
| 403 | |
| 404 | #ifdef CONFIG_PM |
| 405 | |
| 406 | static int velocity_suspend(struct pci_dev *pdev, pm_message_t state); |
| 407 | static int velocity_resume(struct pci_dev *pdev); |
| 408 | |
Randy Dunlap | ce9f7fe | 2006-12-18 21:21:10 -0800 | [diff] [blame] | 409 | static DEFINE_SPINLOCK(velocity_dev_list_lock); |
| 410 | static LIST_HEAD(velocity_dev_list); |
| 411 | |
| 412 | #endif |
| 413 | |
| 414 | #if defined(CONFIG_PM) && defined(CONFIG_INET) |
| 415 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 416 | static int velocity_netdev_event(struct notifier_block *nb, unsigned long notification, void *ptr); |
| 417 | |
| 418 | static struct notifier_block velocity_inetaddr_notifier = { |
| 419 | .notifier_call = velocity_netdev_event, |
| 420 | }; |
| 421 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 422 | static void velocity_register_notifier(void) |
| 423 | { |
| 424 | register_inetaddr_notifier(&velocity_inetaddr_notifier); |
| 425 | } |
| 426 | |
| 427 | static void velocity_unregister_notifier(void) |
| 428 | { |
| 429 | unregister_inetaddr_notifier(&velocity_inetaddr_notifier); |
| 430 | } |
| 431 | |
Randy Dunlap | ce9f7fe | 2006-12-18 21:21:10 -0800 | [diff] [blame] | 432 | #else |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 433 | |
| 434 | #define velocity_register_notifier() do {} while (0) |
| 435 | #define velocity_unregister_notifier() do {} while (0) |
| 436 | |
Randy Dunlap | ce9f7fe | 2006-12-18 21:21:10 -0800 | [diff] [blame] | 437 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 438 | |
| 439 | /* |
| 440 | * Internal board variants. At the moment we have only one |
| 441 | */ |
| 442 | |
Andrew Morton | 4f14b92 | 2008-02-09 23:41:40 -0800 | [diff] [blame] | 443 | static struct velocity_info_tbl chip_info_table[] = { |
Jeff Garzik | cabb766 | 2006-06-27 09:25:28 -0400 | [diff] [blame] | 444 | {CHIP_TYPE_VT6110, "VIA Networking Velocity Family Gigabit Ethernet Adapter", 1, 0x00FFFFFFUL}, |
| 445 | { } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 446 | }; |
| 447 | |
| 448 | /* |
| 449 | * Describe the PCI device identifiers that we support in this |
| 450 | * device driver. Used for hotplug autoloading. |
| 451 | */ |
| 452 | |
Jeff Garzik | e54f489 | 2006-06-27 09:20:08 -0400 | [diff] [blame] | 453 | static const struct pci_device_id velocity_id_table[] __devinitdata = { |
| 454 | { PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_612X) }, |
| 455 | { } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 456 | }; |
| 457 | |
| 458 | MODULE_DEVICE_TABLE(pci, velocity_id_table); |
| 459 | |
| 460 | /** |
| 461 | * get_chip_name - identifier to name |
| 462 | * @id: chip identifier |
| 463 | * |
| 464 | * Given a chip identifier return a suitable description. Returns |
| 465 | * a pointer a static string valid while the driver is loaded. |
| 466 | */ |
| 467 | |
Stephen Hemminger | 01faccb | 2007-08-24 14:40:45 -0700 | [diff] [blame] | 468 | static const char __devinit *get_chip_name(enum chip_type chip_id) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 469 | { |
| 470 | int i; |
| 471 | for (i = 0; chip_info_table[i].name != NULL; i++) |
| 472 | if (chip_info_table[i].chip_id == chip_id) |
| 473 | break; |
| 474 | return chip_info_table[i].name; |
| 475 | } |
| 476 | |
| 477 | /** |
| 478 | * velocity_remove1 - device unplug |
| 479 | * @pdev: PCI device being removed |
| 480 | * |
| 481 | * Device unload callback. Called on an unplug or on module |
| 482 | * unload for each active device that is present. Disconnects |
| 483 | * the device from the network layer and frees all the resources |
| 484 | */ |
| 485 | |
| 486 | static void __devexit velocity_remove1(struct pci_dev *pdev) |
| 487 | { |
| 488 | struct net_device *dev = pci_get_drvdata(pdev); |
Jeff Garzik | 8ab6f3f | 2006-06-27 08:56:23 -0400 | [diff] [blame] | 489 | struct velocity_info *vptr = netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 490 | |
| 491 | #ifdef CONFIG_PM |
| 492 | unsigned long flags; |
| 493 | |
| 494 | spin_lock_irqsave(&velocity_dev_list_lock, flags); |
| 495 | if (!list_empty(&velocity_dev_list)) |
| 496 | list_del(&vptr->list); |
| 497 | spin_unlock_irqrestore(&velocity_dev_list_lock, flags); |
| 498 | #endif |
| 499 | unregister_netdev(dev); |
| 500 | iounmap(vptr->mac_regs); |
| 501 | pci_release_regions(pdev); |
| 502 | pci_disable_device(pdev); |
| 503 | pci_set_drvdata(pdev, NULL); |
| 504 | free_netdev(dev); |
| 505 | |
| 506 | velocity_nics--; |
| 507 | } |
| 508 | |
| 509 | /** |
| 510 | * velocity_set_int_opt - parser for integer options |
| 511 | * @opt: pointer to option value |
| 512 | * @val: value the user requested (or -1 for default) |
| 513 | * @min: lowest value allowed |
| 514 | * @max: highest value allowed |
| 515 | * @def: default value |
| 516 | * @name: property name |
| 517 | * @dev: device name |
| 518 | * |
| 519 | * Set an integer property in the module options. This function does |
| 520 | * all the verification and checking as well as reporting so that |
| 521 | * we don't duplicate code for each option. |
| 522 | */ |
| 523 | |
| 524 | static void __devinit velocity_set_int_opt(int *opt, int val, int min, int max, int def, char *name, char *devname) |
| 525 | { |
| 526 | if (val == -1) |
| 527 | *opt = def; |
| 528 | else if (val < min || val > max) { |
| 529 | VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: the value of parameter %s is invalid, the valid range is (%d-%d)\n", |
| 530 | devname, name, min, max); |
| 531 | *opt = def; |
| 532 | } else { |
| 533 | VELOCITY_PRT(MSG_LEVEL_INFO, KERN_INFO "%s: set value of parameter %s to %d\n", |
| 534 | devname, name, val); |
| 535 | *opt = val; |
| 536 | } |
| 537 | } |
| 538 | |
| 539 | /** |
| 540 | * velocity_set_bool_opt - parser for boolean options |
| 541 | * @opt: pointer to option value |
| 542 | * @val: value the user requested (or -1 for default) |
| 543 | * @def: default value (yes/no) |
| 544 | * @flag: numeric value to set for true. |
| 545 | * @name: property name |
| 546 | * @dev: device name |
| 547 | * |
| 548 | * Set a boolean property in the module options. This function does |
| 549 | * all the verification and checking as well as reporting so that |
| 550 | * we don't duplicate code for each option. |
| 551 | */ |
| 552 | |
| 553 | static void __devinit velocity_set_bool_opt(u32 * opt, int val, int def, u32 flag, char *name, char *devname) |
| 554 | { |
| 555 | (*opt) &= (~flag); |
| 556 | if (val == -1) |
| 557 | *opt |= (def ? flag : 0); |
| 558 | else if (val < 0 || val > 1) { |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 559 | printk(KERN_NOTICE "%s: the value of parameter %s is invalid, the valid range is (0-1)\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 560 | devname, name); |
| 561 | *opt |= (def ? flag : 0); |
| 562 | } else { |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 563 | printk(KERN_INFO "%s: set parameter %s to %s\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 564 | devname, name, val ? "TRUE" : "FALSE"); |
| 565 | *opt |= (val ? flag : 0); |
| 566 | } |
| 567 | } |
| 568 | |
| 569 | /** |
| 570 | * velocity_get_options - set options on device |
| 571 | * @opts: option structure for the device |
| 572 | * @index: index of option to use in module options array |
| 573 | * @devname: device name |
| 574 | * |
| 575 | * Turn the module and command options into a single structure |
| 576 | * for the current device |
| 577 | */ |
| 578 | |
| 579 | static void __devinit velocity_get_options(struct velocity_opt *opts, int index, char *devname) |
| 580 | { |
| 581 | |
| 582 | velocity_set_int_opt(&opts->rx_thresh, rx_thresh[index], RX_THRESH_MIN, RX_THRESH_MAX, RX_THRESH_DEF, "rx_thresh", devname); |
| 583 | velocity_set_int_opt(&opts->DMA_length, DMA_length[index], DMA_LENGTH_MIN, DMA_LENGTH_MAX, DMA_LENGTH_DEF, "DMA_length", devname); |
| 584 | velocity_set_int_opt(&opts->numrx, RxDescriptors[index], RX_DESC_MIN, RX_DESC_MAX, RX_DESC_DEF, "RxDescriptors", devname); |
| 585 | velocity_set_int_opt(&opts->numtx, TxDescriptors[index], TX_DESC_MIN, TX_DESC_MAX, TX_DESC_DEF, "TxDescriptors", devname); |
Stephen Hemminger | 501e4d2 | 2007-08-24 13:56:49 -0700 | [diff] [blame] | 586 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 587 | velocity_set_bool_opt(&opts->flags, txcsum_offload[index], TX_CSUM_DEF, VELOCITY_FLAGS_TX_CSUM, "txcsum_offload", devname); |
| 588 | velocity_set_int_opt(&opts->flow_cntl, flow_control[index], FLOW_CNTL_MIN, FLOW_CNTL_MAX, FLOW_CNTL_DEF, "flow_control", devname); |
| 589 | velocity_set_bool_opt(&opts->flags, IP_byte_align[index], IP_ALIG_DEF, VELOCITY_FLAGS_IP_ALIGN, "IP_byte_align", devname); |
| 590 | velocity_set_bool_opt(&opts->flags, ValPktLen[index], VAL_PKT_LEN_DEF, VELOCITY_FLAGS_VAL_PKT_LEN, "ValPktLen", devname); |
| 591 | velocity_set_int_opt((int *) &opts->spd_dpx, speed_duplex[index], MED_LNK_MIN, MED_LNK_MAX, MED_LNK_DEF, "Media link mode", devname); |
| 592 | velocity_set_int_opt((int *) &opts->wol_opts, wol_opts[index], WOL_OPT_MIN, WOL_OPT_MAX, WOL_OPT_DEF, "Wake On Lan options", devname); |
| 593 | velocity_set_int_opt((int *) &opts->int_works, int_works[index], INT_WORKS_MIN, INT_WORKS_MAX, INT_WORKS_DEF, "Interrupt service works", devname); |
| 594 | opts->numrx = (opts->numrx & ~3); |
| 595 | } |
| 596 | |
| 597 | /** |
| 598 | * velocity_init_cam_filter - initialise CAM |
| 599 | * @vptr: velocity to program |
| 600 | * |
| 601 | * Initialize the content addressable memory used for filters. Load |
| 602 | * appropriately according to the presence of VLAN |
| 603 | */ |
| 604 | |
| 605 | static void velocity_init_cam_filter(struct velocity_info *vptr) |
| 606 | { |
| 607 | struct mac_regs __iomem * regs = vptr->mac_regs; |
Stephen Hemminger | 501e4d2 | 2007-08-24 13:56:49 -0700 | [diff] [blame] | 608 | unsigned short vid; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 609 | |
| 610 | /* Turn on MCFG_PQEN, turn off MCFG_RTGOPT */ |
| 611 | WORD_REG_BITS_SET(MCFG_PQEN, MCFG_RTGOPT, ®s->MCFG); |
| 612 | WORD_REG_BITS_ON(MCFG_VIDFR, ®s->MCFG); |
| 613 | |
| 614 | /* Disable all CAMs */ |
| 615 | memset(vptr->vCAMmask, 0, sizeof(u8) * 8); |
| 616 | memset(vptr->mCAMmask, 0, sizeof(u8) * 8); |
Stephen Hemminger | 01faccb | 2007-08-24 14:40:45 -0700 | [diff] [blame] | 617 | mac_set_vlan_cam_mask(regs, vptr->vCAMmask); |
| 618 | mac_set_cam_mask(regs, vptr->mCAMmask); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 619 | |
| 620 | /* Enable first VCAM */ |
Stephen Hemminger | 501e4d2 | 2007-08-24 13:56:49 -0700 | [diff] [blame] | 621 | if (vptr->vlgrp) { |
| 622 | for (vid = 0; vid < VLAN_VID_MASK; vid++) { |
| 623 | if (vlan_group_get_device(vptr->vlgrp, vid)) { |
| 624 | /* If Tagging option is enabled and |
| 625 | VLAN ID is not zero, then |
| 626 | turn on MCFG_RTGOPT also */ |
| 627 | if (vid != 0) |
| 628 | WORD_REG_BITS_ON(MCFG_RTGOPT, ®s->MCFG); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 629 | |
Stephen Hemminger | 01faccb | 2007-08-24 14:40:45 -0700 | [diff] [blame] | 630 | mac_set_vlan_cam(regs, 0, (u8 *) &vid); |
Stephen Hemminger | 501e4d2 | 2007-08-24 13:56:49 -0700 | [diff] [blame] | 631 | } |
| 632 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 633 | vptr->vCAMmask[0] |= 1; |
Stephen Hemminger | 01faccb | 2007-08-24 14:40:45 -0700 | [diff] [blame] | 634 | mac_set_vlan_cam_mask(regs, vptr->vCAMmask); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 635 | } else { |
| 636 | u16 temp = 0; |
Stephen Hemminger | 01faccb | 2007-08-24 14:40:45 -0700 | [diff] [blame] | 637 | mac_set_vlan_cam(regs, 0, (u8 *) &temp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 638 | temp = 1; |
Stephen Hemminger | 01faccb | 2007-08-24 14:40:45 -0700 | [diff] [blame] | 639 | mac_set_vlan_cam_mask(regs, (u8 *) &temp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 640 | } |
| 641 | } |
| 642 | |
Stephen Hemminger | 501e4d2 | 2007-08-24 13:56:49 -0700 | [diff] [blame] | 643 | static void velocity_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) |
| 644 | { |
| 645 | struct velocity_info *vptr = netdev_priv(dev); |
| 646 | |
| 647 | spin_lock_irq(&vptr->lock); |
| 648 | velocity_init_cam_filter(vptr); |
| 649 | spin_unlock_irq(&vptr->lock); |
| 650 | } |
| 651 | |
| 652 | static void velocity_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) |
| 653 | { |
| 654 | struct velocity_info *vptr = netdev_priv(dev); |
| 655 | |
| 656 | spin_lock_irq(&vptr->lock); |
| 657 | vlan_group_set_device(vptr->vlgrp, vid, NULL); |
| 658 | velocity_init_cam_filter(vptr); |
| 659 | spin_unlock_irq(&vptr->lock); |
| 660 | } |
| 661 | |
| 662 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 663 | /** |
| 664 | * velocity_rx_reset - handle a receive reset |
| 665 | * @vptr: velocity we are resetting |
| 666 | * |
| 667 | * Reset the ownership and status for the receive ring side. |
| 668 | * Hand all the receive queue to the NIC. |
| 669 | */ |
| 670 | |
| 671 | static void velocity_rx_reset(struct velocity_info *vptr) |
| 672 | { |
| 673 | |
| 674 | struct mac_regs __iomem * regs = vptr->mac_regs; |
| 675 | int i; |
| 676 | |
| 677 | vptr->rd_dirty = vptr->rd_filled = vptr->rd_curr = 0; |
| 678 | |
| 679 | /* |
| 680 | * Init state, all RD entries belong to the NIC |
| 681 | */ |
| 682 | for (i = 0; i < vptr->options.numrx; ++i) |
Al Viro | 4a51c0d | 2008-01-30 19:10:13 +0000 | [diff] [blame] | 683 | vptr->rd_ring[i].rdesc0.len |= OWNED_BY_NIC; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 684 | |
| 685 | writew(vptr->options.numrx, ®s->RBRDU); |
| 686 | writel(vptr->rd_pool_dma, ®s->RDBaseLo); |
| 687 | writew(0, ®s->RDIdx); |
| 688 | writew(vptr->options.numrx - 1, ®s->RDCSize); |
| 689 | } |
| 690 | |
| 691 | /** |
| 692 | * velocity_init_registers - initialise MAC registers |
| 693 | * @vptr: velocity to init |
| 694 | * @type: type of initialisation (hot or cold) |
| 695 | * |
| 696 | * Initialise the MAC on a reset or on first set up on the |
| 697 | * hardware. |
| 698 | */ |
| 699 | |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 700 | static void velocity_init_registers(struct velocity_info *vptr, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 701 | enum velocity_init_type type) |
| 702 | { |
| 703 | struct mac_regs __iomem * regs = vptr->mac_regs; |
| 704 | int i, mii_status; |
| 705 | |
| 706 | mac_wol_reset(regs); |
| 707 | |
| 708 | switch (type) { |
| 709 | case VELOCITY_INIT_RESET: |
| 710 | case VELOCITY_INIT_WOL: |
| 711 | |
| 712 | netif_stop_queue(vptr->dev); |
| 713 | |
| 714 | /* |
| 715 | * Reset RX to prevent RX pointer not on the 4X location |
| 716 | */ |
| 717 | velocity_rx_reset(vptr); |
| 718 | mac_rx_queue_run(regs); |
| 719 | mac_rx_queue_wake(regs); |
| 720 | |
| 721 | mii_status = velocity_get_opt_media_mode(vptr); |
| 722 | if (velocity_set_media_mode(vptr, mii_status) != VELOCITY_LINK_CHANGE) { |
| 723 | velocity_print_link_status(vptr); |
| 724 | if (!(vptr->mii_status & VELOCITY_LINK_FAIL)) |
| 725 | netif_wake_queue(vptr->dev); |
| 726 | } |
| 727 | |
| 728 | enable_flow_control_ability(vptr); |
| 729 | |
| 730 | mac_clear_isr(regs); |
| 731 | writel(CR0_STOP, ®s->CR0Clr); |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 732 | writel((CR0_DPOLL | CR0_TXON | CR0_RXON | CR0_STRT), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 733 | ®s->CR0Set); |
| 734 | |
| 735 | break; |
| 736 | |
| 737 | case VELOCITY_INIT_COLD: |
| 738 | default: |
| 739 | /* |
| 740 | * Do reset |
| 741 | */ |
| 742 | velocity_soft_reset(vptr); |
| 743 | mdelay(5); |
| 744 | |
| 745 | mac_eeprom_reload(regs); |
| 746 | for (i = 0; i < 6; i++) { |
| 747 | writeb(vptr->dev->dev_addr[i], &(regs->PAR[i])); |
| 748 | } |
| 749 | /* |
| 750 | * clear Pre_ACPI bit. |
| 751 | */ |
| 752 | BYTE_REG_BITS_OFF(CFGA_PACPI, &(regs->CFGA)); |
| 753 | mac_set_rx_thresh(regs, vptr->options.rx_thresh); |
| 754 | mac_set_dma_length(regs, vptr->options.DMA_length); |
| 755 | |
| 756 | writeb(WOLCFG_SAM | WOLCFG_SAB, ®s->WOLCFGSet); |
| 757 | /* |
| 758 | * Back off algorithm use original IEEE standard |
| 759 | */ |
| 760 | BYTE_REG_BITS_SET(CFGB_OFSET, (CFGB_CRANDOM | CFGB_CAP | CFGB_MBA | CFGB_BAKOPT), ®s->CFGB); |
| 761 | |
| 762 | /* |
| 763 | * Init CAM filter |
| 764 | */ |
| 765 | velocity_init_cam_filter(vptr); |
| 766 | |
| 767 | /* |
| 768 | * Set packet filter: Receive directed and broadcast address |
| 769 | */ |
| 770 | velocity_set_multi(vptr->dev); |
| 771 | |
| 772 | /* |
| 773 | * Enable MII auto-polling |
| 774 | */ |
| 775 | enable_mii_autopoll(regs); |
| 776 | |
| 777 | vptr->int_mask = INT_MASK_DEF; |
| 778 | |
Al Viro | 4a51c0d | 2008-01-30 19:10:13 +0000 | [diff] [blame] | 779 | writel(vptr->rd_pool_dma, ®s->RDBaseLo); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 780 | writew(vptr->options.numrx - 1, ®s->RDCSize); |
| 781 | mac_rx_queue_run(regs); |
| 782 | mac_rx_queue_wake(regs); |
| 783 | |
| 784 | writew(vptr->options.numtx - 1, ®s->TDCSize); |
| 785 | |
| 786 | for (i = 0; i < vptr->num_txq; i++) { |
Al Viro | 4a51c0d | 2008-01-30 19:10:13 +0000 | [diff] [blame] | 787 | writel(vptr->td_pool_dma[i], ®s->TDBaseLo[i]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 788 | mac_tx_queue_run(regs, i); |
| 789 | } |
| 790 | |
| 791 | init_flow_control_register(vptr); |
| 792 | |
| 793 | writel(CR0_STOP, ®s->CR0Clr); |
| 794 | writel((CR0_DPOLL | CR0_TXON | CR0_RXON | CR0_STRT), ®s->CR0Set); |
| 795 | |
| 796 | mii_status = velocity_get_opt_media_mode(vptr); |
| 797 | netif_stop_queue(vptr->dev); |
| 798 | |
| 799 | mii_init(vptr, mii_status); |
| 800 | |
| 801 | if (velocity_set_media_mode(vptr, mii_status) != VELOCITY_LINK_CHANGE) { |
| 802 | velocity_print_link_status(vptr); |
| 803 | if (!(vptr->mii_status & VELOCITY_LINK_FAIL)) |
| 804 | netif_wake_queue(vptr->dev); |
| 805 | } |
| 806 | |
| 807 | enable_flow_control_ability(vptr); |
| 808 | mac_hw_mibs_init(regs); |
| 809 | mac_write_int_mask(vptr->int_mask, regs); |
| 810 | mac_clear_isr(regs); |
| 811 | |
| 812 | } |
| 813 | } |
| 814 | |
| 815 | /** |
| 816 | * velocity_soft_reset - soft reset |
| 817 | * @vptr: velocity to reset |
| 818 | * |
| 819 | * Kick off a soft reset of the velocity adapter and then poll |
| 820 | * until the reset sequence has completed before returning. |
| 821 | */ |
| 822 | |
| 823 | static int velocity_soft_reset(struct velocity_info *vptr) |
| 824 | { |
| 825 | struct mac_regs __iomem * regs = vptr->mac_regs; |
| 826 | int i = 0; |
| 827 | |
| 828 | writel(CR0_SFRST, ®s->CR0Set); |
| 829 | |
| 830 | for (i = 0; i < W_MAX_TIMEOUT; i++) { |
| 831 | udelay(5); |
| 832 | if (!DWORD_REG_BITS_IS_ON(CR0_SFRST, ®s->CR0Set)) |
| 833 | break; |
| 834 | } |
| 835 | |
| 836 | if (i == W_MAX_TIMEOUT) { |
| 837 | writel(CR0_FORSRST, ®s->CR0Set); |
| 838 | /* FIXME: PCI POSTING */ |
| 839 | /* delay 2ms */ |
| 840 | mdelay(2); |
| 841 | } |
| 842 | return 0; |
| 843 | } |
| 844 | |
| 845 | /** |
| 846 | * velocity_found1 - set up discovered velocity card |
| 847 | * @pdev: PCI device |
| 848 | * @ent: PCI device table entry that matched |
| 849 | * |
| 850 | * Configure a discovered adapter from scratch. Return a negative |
| 851 | * errno error code on failure paths. |
| 852 | */ |
| 853 | |
| 854 | static int __devinit velocity_found1(struct pci_dev *pdev, const struct pci_device_id *ent) |
| 855 | { |
| 856 | static int first = 1; |
| 857 | struct net_device *dev; |
| 858 | int i; |
Jeff Garzik | cabb766 | 2006-06-27 09:25:28 -0400 | [diff] [blame] | 859 | const struct velocity_info_tbl *info = &chip_info_table[ent->driver_data]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 860 | struct velocity_info *vptr; |
| 861 | struct mac_regs __iomem * regs; |
| 862 | int ret = -ENOMEM; |
| 863 | |
Jeff Garzik | e54f489 | 2006-06-27 09:20:08 -0400 | [diff] [blame] | 864 | /* FIXME: this driver, like almost all other ethernet drivers, |
| 865 | * can support more than MAX_UNITS. |
| 866 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 867 | if (velocity_nics >= MAX_UNITS) { |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 868 | dev_notice(&pdev->dev, "already found %d NICs.\n", |
Jeff Garzik | e54f489 | 2006-06-27 09:20:08 -0400 | [diff] [blame] | 869 | velocity_nics); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 870 | return -ENODEV; |
| 871 | } |
| 872 | |
| 873 | dev = alloc_etherdev(sizeof(struct velocity_info)); |
Jeff Garzik | e54f489 | 2006-06-27 09:20:08 -0400 | [diff] [blame] | 874 | if (!dev) { |
Jeff Garzik | 9b91cf9 | 2006-06-27 11:39:50 -0400 | [diff] [blame] | 875 | dev_err(&pdev->dev, "allocate net device failed.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 876 | goto out; |
| 877 | } |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 878 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 879 | /* Chain it all together */ |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 880 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 881 | SET_NETDEV_DEV(dev, &pdev->dev); |
Jeff Garzik | 8ab6f3f | 2006-06-27 08:56:23 -0400 | [diff] [blame] | 882 | vptr = netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 883 | |
| 884 | |
| 885 | if (first) { |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 886 | printk(KERN_INFO "%s Ver. %s\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 887 | VELOCITY_FULL_DRV_NAM, VELOCITY_VERSION); |
| 888 | printk(KERN_INFO "Copyright (c) 2002, 2003 VIA Networking Technologies, Inc.\n"); |
| 889 | printk(KERN_INFO "Copyright (c) 2004 Red Hat Inc.\n"); |
| 890 | first = 0; |
| 891 | } |
| 892 | |
| 893 | velocity_init_info(pdev, vptr, info); |
| 894 | |
| 895 | vptr->dev = dev; |
| 896 | |
| 897 | dev->irq = pdev->irq; |
| 898 | |
| 899 | ret = pci_enable_device(pdev); |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 900 | if (ret < 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 901 | goto err_free_dev; |
| 902 | |
| 903 | ret = velocity_get_pci_info(vptr, pdev); |
| 904 | if (ret < 0) { |
Jeff Garzik | e54f489 | 2006-06-27 09:20:08 -0400 | [diff] [blame] | 905 | /* error message already printed */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 906 | goto err_disable; |
| 907 | } |
| 908 | |
| 909 | ret = pci_request_regions(pdev, VELOCITY_NAME); |
| 910 | if (ret < 0) { |
Jeff Garzik | 9b91cf9 | 2006-06-27 11:39:50 -0400 | [diff] [blame] | 911 | dev_err(&pdev->dev, "No PCI resources.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 912 | goto err_disable; |
| 913 | } |
| 914 | |
Jeff Garzik | cabb766 | 2006-06-27 09:25:28 -0400 | [diff] [blame] | 915 | regs = ioremap(vptr->memaddr, VELOCITY_IO_SIZE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 916 | if (regs == NULL) { |
| 917 | ret = -EIO; |
| 918 | goto err_release_res; |
| 919 | } |
| 920 | |
| 921 | vptr->mac_regs = regs; |
| 922 | |
| 923 | mac_wol_reset(regs); |
| 924 | |
| 925 | dev->base_addr = vptr->ioaddr; |
| 926 | |
| 927 | for (i = 0; i < 6; i++) |
| 928 | dev->dev_addr[i] = readb(®s->PAR[i]); |
| 929 | |
| 930 | |
| 931 | velocity_get_options(&vptr->options, velocity_nics, dev->name); |
| 932 | |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 933 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 934 | * Mask out the options cannot be set to the chip |
| 935 | */ |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 936 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 937 | vptr->options.flags &= info->flags; |
| 938 | |
| 939 | /* |
| 940 | * Enable the chip specified capbilities |
| 941 | */ |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 942 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 943 | vptr->flags = vptr->options.flags | (info->flags & 0xFF000000UL); |
| 944 | |
| 945 | vptr->wol_opts = vptr->options.wol_opts; |
| 946 | vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED; |
| 947 | |
| 948 | vptr->phy_id = MII_GET_PHY_ID(vptr->mac_regs); |
| 949 | |
| 950 | dev->irq = pdev->irq; |
| 951 | dev->open = velocity_open; |
| 952 | dev->hard_start_xmit = velocity_xmit; |
| 953 | dev->stop = velocity_close; |
| 954 | dev->get_stats = velocity_get_stats; |
| 955 | dev->set_multicast_list = velocity_set_multi; |
| 956 | dev->do_ioctl = velocity_ioctl; |
| 957 | dev->ethtool_ops = &velocity_ethtool_ops; |
| 958 | dev->change_mtu = velocity_change_mtu; |
Stephen Hemminger | 501e4d2 | 2007-08-24 13:56:49 -0700 | [diff] [blame] | 959 | |
| 960 | dev->vlan_rx_add_vid = velocity_vlan_rx_add_vid; |
| 961 | dev->vlan_rx_kill_vid = velocity_vlan_rx_kill_vid; |
| 962 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 963 | #ifdef VELOCITY_ZERO_COPY_SUPPORT |
| 964 | dev->features |= NETIF_F_SG; |
| 965 | #endif |
Stephen Hemminger | 501e4d2 | 2007-08-24 13:56:49 -0700 | [diff] [blame] | 966 | dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_FILTER; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 967 | |
Stephen Hemminger | 501e4d2 | 2007-08-24 13:56:49 -0700 | [diff] [blame] | 968 | if (vptr->flags & VELOCITY_FLAGS_TX_CSUM) |
John W. Linville | 9f3f46b | 2005-12-09 10:36:09 -0500 | [diff] [blame] | 969 | dev->features |= NETIF_F_IP_CSUM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 970 | |
| 971 | ret = register_netdev(dev); |
| 972 | if (ret < 0) |
| 973 | goto err_iounmap; |
| 974 | |
Francois Romieu | 8a22ddd | 2006-06-23 00:47:06 +0200 | [diff] [blame] | 975 | if (velocity_get_link(dev)) |
| 976 | netif_carrier_off(dev); |
| 977 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 978 | velocity_print_info(vptr); |
| 979 | pci_set_drvdata(pdev, dev); |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 980 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 981 | /* and leave the chip powered down */ |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 982 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 983 | pci_set_power_state(pdev, PCI_D3hot); |
| 984 | #ifdef CONFIG_PM |
| 985 | { |
| 986 | unsigned long flags; |
| 987 | |
| 988 | spin_lock_irqsave(&velocity_dev_list_lock, flags); |
| 989 | list_add(&vptr->list, &velocity_dev_list); |
| 990 | spin_unlock_irqrestore(&velocity_dev_list_lock, flags); |
| 991 | } |
| 992 | #endif |
| 993 | velocity_nics++; |
| 994 | out: |
| 995 | return ret; |
| 996 | |
| 997 | err_iounmap: |
| 998 | iounmap(regs); |
| 999 | err_release_res: |
| 1000 | pci_release_regions(pdev); |
| 1001 | err_disable: |
| 1002 | pci_disable_device(pdev); |
| 1003 | err_free_dev: |
| 1004 | free_netdev(dev); |
| 1005 | goto out; |
| 1006 | } |
| 1007 | |
| 1008 | /** |
| 1009 | * velocity_print_info - per driver data |
| 1010 | * @vptr: velocity |
| 1011 | * |
| 1012 | * Print per driver data as the kernel driver finds Velocity |
| 1013 | * hardware |
| 1014 | */ |
| 1015 | |
| 1016 | static void __devinit velocity_print_info(struct velocity_info *vptr) |
| 1017 | { |
| 1018 | struct net_device *dev = vptr->dev; |
| 1019 | |
| 1020 | printk(KERN_INFO "%s: %s\n", dev->name, get_chip_name(vptr->chip_id)); |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1021 | printk(KERN_INFO "%s: Ethernet Address: %2.2X:%2.2X:%2.2X:%2.2X:%2.2X:%2.2X\n", |
| 1022 | dev->name, |
| 1023 | dev->dev_addr[0], dev->dev_addr[1], dev->dev_addr[2], |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1024 | dev->dev_addr[3], dev->dev_addr[4], dev->dev_addr[5]); |
| 1025 | } |
| 1026 | |
| 1027 | /** |
| 1028 | * velocity_init_info - init private data |
| 1029 | * @pdev: PCI device |
| 1030 | * @vptr: Velocity info |
| 1031 | * @info: Board type |
| 1032 | * |
| 1033 | * Set up the initial velocity_info struct for the device that has been |
| 1034 | * discovered. |
| 1035 | */ |
| 1036 | |
Jeff Garzik | cabb766 | 2006-06-27 09:25:28 -0400 | [diff] [blame] | 1037 | static void __devinit velocity_init_info(struct pci_dev *pdev, |
| 1038 | struct velocity_info *vptr, |
| 1039 | const struct velocity_info_tbl *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1040 | { |
| 1041 | memset(vptr, 0, sizeof(struct velocity_info)); |
| 1042 | |
| 1043 | vptr->pdev = pdev; |
| 1044 | vptr->chip_id = info->chip_id; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1045 | vptr->num_txq = info->txqueue; |
| 1046 | vptr->multicast_limit = MCAM_SIZE; |
| 1047 | spin_lock_init(&vptr->lock); |
| 1048 | INIT_LIST_HEAD(&vptr->list); |
| 1049 | } |
| 1050 | |
| 1051 | /** |
| 1052 | * velocity_get_pci_info - retrieve PCI info for device |
| 1053 | * @vptr: velocity device |
| 1054 | * @pdev: PCI device it matches |
| 1055 | * |
| 1056 | * Retrieve the PCI configuration space data that interests us from |
| 1057 | * the kernel PCI layer |
| 1058 | */ |
| 1059 | |
| 1060 | static int __devinit velocity_get_pci_info(struct velocity_info *vptr, struct pci_dev *pdev) |
| 1061 | { |
Auke Kok | 44c1013 | 2007-06-08 15:46:36 -0700 | [diff] [blame] | 1062 | vptr->rev_id = pdev->revision; |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1063 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1064 | pci_set_master(pdev); |
| 1065 | |
| 1066 | vptr->ioaddr = pci_resource_start(pdev, 0); |
| 1067 | vptr->memaddr = pci_resource_start(pdev, 1); |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1068 | |
Jeff Garzik | e54f489 | 2006-06-27 09:20:08 -0400 | [diff] [blame] | 1069 | if (!(pci_resource_flags(pdev, 0) & IORESOURCE_IO)) { |
Jeff Garzik | 9b91cf9 | 2006-06-27 11:39:50 -0400 | [diff] [blame] | 1070 | dev_err(&pdev->dev, |
Jeff Garzik | e54f489 | 2006-06-27 09:20:08 -0400 | [diff] [blame] | 1071 | "region #0 is not an I/O resource, aborting.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1072 | return -EINVAL; |
| 1073 | } |
| 1074 | |
Jeff Garzik | e54f489 | 2006-06-27 09:20:08 -0400 | [diff] [blame] | 1075 | if ((pci_resource_flags(pdev, 1) & IORESOURCE_IO)) { |
Jeff Garzik | 9b91cf9 | 2006-06-27 11:39:50 -0400 | [diff] [blame] | 1076 | dev_err(&pdev->dev, |
Jeff Garzik | e54f489 | 2006-06-27 09:20:08 -0400 | [diff] [blame] | 1077 | "region #1 is an I/O resource, aborting.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1078 | return -EINVAL; |
| 1079 | } |
| 1080 | |
Jeff Garzik | cabb766 | 2006-06-27 09:25:28 -0400 | [diff] [blame] | 1081 | if (pci_resource_len(pdev, 1) < VELOCITY_IO_SIZE) { |
Jeff Garzik | 9b91cf9 | 2006-06-27 11:39:50 -0400 | [diff] [blame] | 1082 | dev_err(&pdev->dev, "region #1 is too small.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1083 | return -EINVAL; |
| 1084 | } |
| 1085 | vptr->pdev = pdev; |
| 1086 | |
| 1087 | return 0; |
| 1088 | } |
| 1089 | |
| 1090 | /** |
| 1091 | * velocity_init_rings - set up DMA rings |
| 1092 | * @vptr: Velocity to set up |
| 1093 | * |
| 1094 | * Allocate PCI mapped DMA rings for the receive and transmit layer |
| 1095 | * to use. |
| 1096 | */ |
| 1097 | |
| 1098 | static int velocity_init_rings(struct velocity_info *vptr) |
| 1099 | { |
| 1100 | int i; |
| 1101 | unsigned int psize; |
| 1102 | unsigned int tsize; |
| 1103 | dma_addr_t pool_dma; |
| 1104 | u8 *pool; |
| 1105 | |
| 1106 | /* |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1107 | * Allocate all RD/TD rings a single pool |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1108 | */ |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1109 | |
| 1110 | psize = vptr->options.numrx * sizeof(struct rx_desc) + |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1111 | vptr->options.numtx * sizeof(struct tx_desc) * vptr->num_txq; |
| 1112 | |
| 1113 | /* |
| 1114 | * pci_alloc_consistent() fulfills the requirement for 64 bytes |
| 1115 | * alignment |
| 1116 | */ |
| 1117 | pool = pci_alloc_consistent(vptr->pdev, psize, &pool_dma); |
| 1118 | |
| 1119 | if (pool == NULL) { |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1120 | printk(KERN_ERR "%s : DMA memory allocation failed.\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1121 | vptr->dev->name); |
| 1122 | return -ENOMEM; |
| 1123 | } |
| 1124 | |
| 1125 | memset(pool, 0, psize); |
| 1126 | |
| 1127 | vptr->rd_ring = (struct rx_desc *) pool; |
| 1128 | |
| 1129 | vptr->rd_pool_dma = pool_dma; |
| 1130 | |
| 1131 | tsize = vptr->options.numtx * PKT_BUF_SZ * vptr->num_txq; |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1132 | vptr->tx_bufs = pci_alloc_consistent(vptr->pdev, tsize, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1133 | &vptr->tx_bufs_dma); |
| 1134 | |
| 1135 | if (vptr->tx_bufs == NULL) { |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1136 | printk(KERN_ERR "%s: DMA memory allocation failed.\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1137 | vptr->dev->name); |
| 1138 | pci_free_consistent(vptr->pdev, psize, pool, pool_dma); |
| 1139 | return -ENOMEM; |
| 1140 | } |
| 1141 | |
| 1142 | memset(vptr->tx_bufs, 0, vptr->options.numtx * PKT_BUF_SZ * vptr->num_txq); |
| 1143 | |
| 1144 | i = vptr->options.numrx * sizeof(struct rx_desc); |
| 1145 | pool += i; |
| 1146 | pool_dma += i; |
| 1147 | for (i = 0; i < vptr->num_txq; i++) { |
| 1148 | int offset = vptr->options.numtx * sizeof(struct tx_desc); |
| 1149 | |
| 1150 | vptr->td_pool_dma[i] = pool_dma; |
| 1151 | vptr->td_rings[i] = (struct tx_desc *) pool; |
| 1152 | pool += offset; |
| 1153 | pool_dma += offset; |
| 1154 | } |
| 1155 | return 0; |
| 1156 | } |
| 1157 | |
| 1158 | /** |
| 1159 | * velocity_free_rings - free PCI ring pointers |
| 1160 | * @vptr: Velocity to free from |
| 1161 | * |
| 1162 | * Clean up the PCI ring buffers allocated to this velocity. |
| 1163 | */ |
| 1164 | |
| 1165 | static void velocity_free_rings(struct velocity_info *vptr) |
| 1166 | { |
| 1167 | int size; |
| 1168 | |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1169 | size = vptr->options.numrx * sizeof(struct rx_desc) + |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1170 | vptr->options.numtx * sizeof(struct tx_desc) * vptr->num_txq; |
| 1171 | |
| 1172 | pci_free_consistent(vptr->pdev, size, vptr->rd_ring, vptr->rd_pool_dma); |
| 1173 | |
| 1174 | size = vptr->options.numtx * PKT_BUF_SZ * vptr->num_txq; |
| 1175 | |
| 1176 | pci_free_consistent(vptr->pdev, size, vptr->tx_bufs, vptr->tx_bufs_dma); |
| 1177 | } |
| 1178 | |
| 1179 | static inline void velocity_give_many_rx_descs(struct velocity_info *vptr) |
| 1180 | { |
| 1181 | struct mac_regs __iomem *regs = vptr->mac_regs; |
| 1182 | int avail, dirty, unusable; |
| 1183 | |
| 1184 | /* |
| 1185 | * RD number must be equal to 4X per hardware spec |
| 1186 | * (programming guide rev 1.20, p.13) |
| 1187 | */ |
| 1188 | if (vptr->rd_filled < 4) |
| 1189 | return; |
| 1190 | |
| 1191 | wmb(); |
| 1192 | |
| 1193 | unusable = vptr->rd_filled & 0x0003; |
| 1194 | dirty = vptr->rd_dirty - unusable; |
| 1195 | for (avail = vptr->rd_filled & 0xfffc; avail; avail--) { |
| 1196 | dirty = (dirty > 0) ? dirty - 1 : vptr->options.numrx - 1; |
Al Viro | 4a51c0d | 2008-01-30 19:10:13 +0000 | [diff] [blame] | 1197 | vptr->rd_ring[dirty].rdesc0.len |= OWNED_BY_NIC; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1198 | } |
| 1199 | |
| 1200 | writew(vptr->rd_filled & 0xfffc, ®s->RBRDU); |
| 1201 | vptr->rd_filled = unusable; |
| 1202 | } |
| 1203 | |
| 1204 | static int velocity_rx_refill(struct velocity_info *vptr) |
| 1205 | { |
| 1206 | int dirty = vptr->rd_dirty, done = 0, ret = 0; |
| 1207 | |
| 1208 | do { |
| 1209 | struct rx_desc *rd = vptr->rd_ring + dirty; |
| 1210 | |
| 1211 | /* Fine for an all zero Rx desc at init time as well */ |
Al Viro | 4a51c0d | 2008-01-30 19:10:13 +0000 | [diff] [blame] | 1212 | if (rd->rdesc0.len & OWNED_BY_NIC) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1213 | break; |
| 1214 | |
| 1215 | if (!vptr->rd_info[dirty].skb) { |
| 1216 | ret = velocity_alloc_rx_buf(vptr, dirty); |
| 1217 | if (ret < 0) |
| 1218 | break; |
| 1219 | } |
| 1220 | done++; |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1221 | dirty = (dirty < vptr->options.numrx - 1) ? dirty + 1 : 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1222 | } while (dirty != vptr->rd_curr); |
| 1223 | |
| 1224 | if (done) { |
| 1225 | vptr->rd_dirty = dirty; |
| 1226 | vptr->rd_filled += done; |
| 1227 | velocity_give_many_rx_descs(vptr); |
| 1228 | } |
| 1229 | |
| 1230 | return ret; |
| 1231 | } |
| 1232 | |
| 1233 | /** |
| 1234 | * velocity_init_rd_ring - set up receive ring |
| 1235 | * @vptr: velocity to configure |
| 1236 | * |
| 1237 | * Allocate and set up the receive buffers for each ring slot and |
| 1238 | * assign them to the network adapter. |
| 1239 | */ |
| 1240 | |
| 1241 | static int velocity_init_rd_ring(struct velocity_info *vptr) |
| 1242 | { |
Mariusz Kozlowski | ae94607 | 2007-08-01 00:11:50 +0200 | [diff] [blame] | 1243 | int ret; |
Stephen Hemminger | 48f6b05 | 2007-11-28 14:20:16 -0800 | [diff] [blame] | 1244 | int mtu = vptr->dev->mtu; |
| 1245 | |
| 1246 | vptr->rx_buf_sz = (mtu <= ETH_DATA_LEN) ? PKT_BUF_SZ : mtu + 32; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1247 | |
Mariusz Kozlowski | ae94607 | 2007-08-01 00:11:50 +0200 | [diff] [blame] | 1248 | vptr->rd_info = kcalloc(vptr->options.numrx, |
| 1249 | sizeof(struct velocity_rd_info), GFP_KERNEL); |
| 1250 | if (!vptr->rd_info) |
| 1251 | return -ENOMEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1252 | |
| 1253 | vptr->rd_filled = vptr->rd_dirty = vptr->rd_curr = 0; |
| 1254 | |
| 1255 | ret = velocity_rx_refill(vptr); |
| 1256 | if (ret < 0) { |
| 1257 | VELOCITY_PRT(MSG_LEVEL_ERR, KERN_ERR |
| 1258 | "%s: failed to allocate RX buffer.\n", vptr->dev->name); |
| 1259 | velocity_free_rd_ring(vptr); |
| 1260 | } |
Mariusz Kozlowski | ae94607 | 2007-08-01 00:11:50 +0200 | [diff] [blame] | 1261 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1262 | return ret; |
| 1263 | } |
| 1264 | |
| 1265 | /** |
| 1266 | * velocity_free_rd_ring - free receive ring |
| 1267 | * @vptr: velocity to clean up |
| 1268 | * |
| 1269 | * Free the receive buffers for each ring slot and any |
| 1270 | * attached socket buffers that need to go away. |
| 1271 | */ |
| 1272 | |
| 1273 | static void velocity_free_rd_ring(struct velocity_info *vptr) |
| 1274 | { |
| 1275 | int i; |
| 1276 | |
| 1277 | if (vptr->rd_info == NULL) |
| 1278 | return; |
| 1279 | |
| 1280 | for (i = 0; i < vptr->options.numrx; i++) { |
| 1281 | struct velocity_rd_info *rd_info = &(vptr->rd_info[i]); |
Francois Romieu | b3c3e7d | 2006-02-27 23:11:08 +0100 | [diff] [blame] | 1282 | struct rx_desc *rd = vptr->rd_ring + i; |
| 1283 | |
| 1284 | memset(rd, 0, sizeof(*rd)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1285 | |
| 1286 | if (!rd_info->skb) |
| 1287 | continue; |
| 1288 | pci_unmap_single(vptr->pdev, rd_info->skb_dma, vptr->rx_buf_sz, |
| 1289 | PCI_DMA_FROMDEVICE); |
| 1290 | rd_info->skb_dma = (dma_addr_t) NULL; |
| 1291 | |
| 1292 | dev_kfree_skb(rd_info->skb); |
| 1293 | rd_info->skb = NULL; |
| 1294 | } |
| 1295 | |
| 1296 | kfree(vptr->rd_info); |
| 1297 | vptr->rd_info = NULL; |
| 1298 | } |
| 1299 | |
| 1300 | /** |
| 1301 | * velocity_init_td_ring - set up transmit ring |
| 1302 | * @vptr: velocity |
| 1303 | * |
| 1304 | * Set up the transmit ring and chain the ring pointers together. |
| 1305 | * Returns zero on success or a negative posix errno code for |
| 1306 | * failure. |
| 1307 | */ |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1308 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1309 | static int velocity_init_td_ring(struct velocity_info *vptr) |
| 1310 | { |
| 1311 | int i, j; |
| 1312 | dma_addr_t curr; |
| 1313 | struct tx_desc *td; |
| 1314 | struct velocity_td_info *td_info; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1315 | |
| 1316 | /* Init the TD ring entries */ |
| 1317 | for (j = 0; j < vptr->num_txq; j++) { |
| 1318 | curr = vptr->td_pool_dma[j]; |
| 1319 | |
Mariusz Kozlowski | ae94607 | 2007-08-01 00:11:50 +0200 | [diff] [blame] | 1320 | vptr->td_infos[j] = kcalloc(vptr->options.numtx, |
| 1321 | sizeof(struct velocity_td_info), |
| 1322 | GFP_KERNEL); |
| 1323 | if (!vptr->td_infos[j]) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1324 | while(--j >= 0) |
| 1325 | kfree(vptr->td_infos[j]); |
| 1326 | return -ENOMEM; |
| 1327 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1328 | |
| 1329 | for (i = 0; i < vptr->options.numtx; i++, curr += sizeof(struct tx_desc)) { |
| 1330 | td = &(vptr->td_rings[j][i]); |
| 1331 | td_info = &(vptr->td_infos[j][i]); |
| 1332 | td_info->buf = vptr->tx_bufs + |
| 1333 | (j * vptr->options.numtx + i) * PKT_BUF_SZ; |
| 1334 | td_info->buf_dma = vptr->tx_bufs_dma + |
| 1335 | (j * vptr->options.numtx + i) * PKT_BUF_SZ; |
| 1336 | } |
| 1337 | vptr->td_tail[j] = vptr->td_curr[j] = vptr->td_used[j] = 0; |
| 1338 | } |
| 1339 | return 0; |
| 1340 | } |
| 1341 | |
| 1342 | /* |
| 1343 | * FIXME: could we merge this with velocity_free_tx_buf ? |
| 1344 | */ |
| 1345 | |
| 1346 | static void velocity_free_td_ring_entry(struct velocity_info *vptr, |
| 1347 | int q, int n) |
| 1348 | { |
| 1349 | struct velocity_td_info * td_info = &(vptr->td_infos[q][n]); |
| 1350 | int i; |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1351 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1352 | if (td_info == NULL) |
| 1353 | return; |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1354 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1355 | if (td_info->skb) { |
| 1356 | for (i = 0; i < td_info->nskb_dma; i++) |
| 1357 | { |
| 1358 | if (td_info->skb_dma[i]) { |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1359 | pci_unmap_single(vptr->pdev, td_info->skb_dma[i], |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1360 | td_info->skb->len, PCI_DMA_TODEVICE); |
| 1361 | td_info->skb_dma[i] = (dma_addr_t) NULL; |
| 1362 | } |
| 1363 | } |
| 1364 | dev_kfree_skb(td_info->skb); |
| 1365 | td_info->skb = NULL; |
| 1366 | } |
| 1367 | } |
| 1368 | |
| 1369 | /** |
| 1370 | * velocity_free_td_ring - free td ring |
| 1371 | * @vptr: velocity |
| 1372 | * |
| 1373 | * Free up the transmit ring for this particular velocity adapter. |
| 1374 | * We free the ring contents but not the ring itself. |
| 1375 | */ |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1376 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1377 | static void velocity_free_td_ring(struct velocity_info *vptr) |
| 1378 | { |
| 1379 | int i, j; |
| 1380 | |
| 1381 | for (j = 0; j < vptr->num_txq; j++) { |
| 1382 | if (vptr->td_infos[j] == NULL) |
| 1383 | continue; |
| 1384 | for (i = 0; i < vptr->options.numtx; i++) { |
| 1385 | velocity_free_td_ring_entry(vptr, j, i); |
| 1386 | |
| 1387 | } |
Jesper Juhl | b4558ea | 2005-10-28 16:53:13 -0400 | [diff] [blame] | 1388 | kfree(vptr->td_infos[j]); |
| 1389 | vptr->td_infos[j] = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1390 | } |
| 1391 | } |
| 1392 | |
| 1393 | /** |
| 1394 | * velocity_rx_srv - service RX interrupt |
| 1395 | * @vptr: velocity |
| 1396 | * @status: adapter status (unused) |
| 1397 | * |
| 1398 | * Walk the receive ring of the velocity adapter and remove |
| 1399 | * any received packets from the receive queue. Hand the ring |
| 1400 | * slots back to the adapter for reuse. |
| 1401 | */ |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1402 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1403 | static int velocity_rx_srv(struct velocity_info *vptr, int status) |
| 1404 | { |
| 1405 | struct net_device_stats *stats = &vptr->stats; |
| 1406 | int rd_curr = vptr->rd_curr; |
| 1407 | int works = 0; |
| 1408 | |
| 1409 | do { |
| 1410 | struct rx_desc *rd = vptr->rd_ring + rd_curr; |
| 1411 | |
| 1412 | if (!vptr->rd_info[rd_curr].skb) |
| 1413 | break; |
| 1414 | |
Al Viro | 4a51c0d | 2008-01-30 19:10:13 +0000 | [diff] [blame] | 1415 | if (rd->rdesc0.len & OWNED_BY_NIC) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1416 | break; |
| 1417 | |
| 1418 | rmb(); |
| 1419 | |
| 1420 | /* |
| 1421 | * Don't drop CE or RL error frame although RXOK is off |
| 1422 | */ |
Al Viro | 4a51c0d | 2008-01-30 19:10:13 +0000 | [diff] [blame] | 1423 | if (rd->rdesc0.RSR & (RSR_RXOK | RSR_CE | RSR_RL)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1424 | if (velocity_receive_frame(vptr, rd_curr) < 0) |
| 1425 | stats->rx_dropped++; |
| 1426 | } else { |
| 1427 | if (rd->rdesc0.RSR & RSR_CRC) |
| 1428 | stats->rx_crc_errors++; |
| 1429 | if (rd->rdesc0.RSR & RSR_FAE) |
| 1430 | stats->rx_frame_errors++; |
| 1431 | |
| 1432 | stats->rx_dropped++; |
| 1433 | } |
| 1434 | |
Al Viro | 4a51c0d | 2008-01-30 19:10:13 +0000 | [diff] [blame] | 1435 | rd->size |= RX_INTEN; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1436 | |
| 1437 | vptr->dev->last_rx = jiffies; |
| 1438 | |
| 1439 | rd_curr++; |
| 1440 | if (rd_curr >= vptr->options.numrx) |
| 1441 | rd_curr = 0; |
| 1442 | } while (++works <= 15); |
| 1443 | |
| 1444 | vptr->rd_curr = rd_curr; |
| 1445 | |
| 1446 | if (works > 0 && velocity_rx_refill(vptr) < 0) { |
| 1447 | VELOCITY_PRT(MSG_LEVEL_ERR, KERN_ERR |
| 1448 | "%s: rx buf allocation failure\n", vptr->dev->name); |
| 1449 | } |
| 1450 | |
| 1451 | VAR_USED(stats); |
| 1452 | return works; |
| 1453 | } |
| 1454 | |
| 1455 | /** |
| 1456 | * velocity_rx_csum - checksum process |
| 1457 | * @rd: receive packet descriptor |
| 1458 | * @skb: network layer packet buffer |
| 1459 | * |
| 1460 | * Process the status bits for the received packet and determine |
| 1461 | * if the checksum was computed and verified by the hardware |
| 1462 | */ |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1463 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1464 | static inline void velocity_rx_csum(struct rx_desc *rd, struct sk_buff *skb) |
| 1465 | { |
| 1466 | skb->ip_summed = CHECKSUM_NONE; |
| 1467 | |
| 1468 | if (rd->rdesc1.CSM & CSM_IPKT) { |
| 1469 | if (rd->rdesc1.CSM & CSM_IPOK) { |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1470 | if ((rd->rdesc1.CSM & CSM_TCPKT) || |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1471 | (rd->rdesc1.CSM & CSM_UDPKT)) { |
| 1472 | if (!(rd->rdesc1.CSM & CSM_TUPOK)) { |
| 1473 | return; |
| 1474 | } |
| 1475 | } |
| 1476 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
| 1477 | } |
| 1478 | } |
| 1479 | } |
| 1480 | |
| 1481 | /** |
| 1482 | * velocity_rx_copy - in place Rx copy for small packets |
| 1483 | * @rx_skb: network layer packet buffer candidate |
| 1484 | * @pkt_size: received data size |
| 1485 | * @rd: receive packet descriptor |
| 1486 | * @dev: network device |
| 1487 | * |
| 1488 | * Replace the current skb that is scheduled for Rx processing by a |
| 1489 | * shorter, immediatly allocated skb, if the received packet is small |
| 1490 | * enough. This function returns a negative value if the received |
| 1491 | * packet is too big or if memory is exhausted. |
| 1492 | */ |
| 1493 | static inline int velocity_rx_copy(struct sk_buff **rx_skb, int pkt_size, |
| 1494 | struct velocity_info *vptr) |
| 1495 | { |
| 1496 | int ret = -1; |
| 1497 | |
| 1498 | if (pkt_size < rx_copybreak) { |
| 1499 | struct sk_buff *new_skb; |
| 1500 | |
| 1501 | new_skb = dev_alloc_skb(pkt_size + 2); |
| 1502 | if (new_skb) { |
| 1503 | new_skb->dev = vptr->dev; |
| 1504 | new_skb->ip_summed = rx_skb[0]->ip_summed; |
| 1505 | |
| 1506 | if (vptr->flags & VELOCITY_FLAGS_IP_ALIGN) |
| 1507 | skb_reserve(new_skb, 2); |
| 1508 | |
Arnaldo Carvalho de Melo | d626f62 | 2007-03-27 18:55:52 -0300 | [diff] [blame] | 1509 | skb_copy_from_linear_data(rx_skb[0], new_skb->data, |
| 1510 | pkt_size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1511 | *rx_skb = new_skb; |
| 1512 | ret = 0; |
| 1513 | } |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1514 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1515 | } |
| 1516 | return ret; |
| 1517 | } |
| 1518 | |
| 1519 | /** |
| 1520 | * velocity_iph_realign - IP header alignment |
| 1521 | * @vptr: velocity we are handling |
| 1522 | * @skb: network layer packet buffer |
| 1523 | * @pkt_size: received data size |
| 1524 | * |
| 1525 | * Align IP header on a 2 bytes boundary. This behavior can be |
| 1526 | * configured by the user. |
| 1527 | */ |
| 1528 | static inline void velocity_iph_realign(struct velocity_info *vptr, |
| 1529 | struct sk_buff *skb, int pkt_size) |
| 1530 | { |
| 1531 | /* FIXME - memmove ? */ |
| 1532 | if (vptr->flags & VELOCITY_FLAGS_IP_ALIGN) { |
| 1533 | int i; |
| 1534 | |
| 1535 | for (i = pkt_size; i >= 0; i--) |
| 1536 | *(skb->data + i + 2) = *(skb->data + i); |
| 1537 | skb_reserve(skb, 2); |
| 1538 | } |
| 1539 | } |
| 1540 | |
| 1541 | /** |
| 1542 | * velocity_receive_frame - received packet processor |
| 1543 | * @vptr: velocity we are handling |
| 1544 | * @idx: ring index |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1545 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1546 | * A packet has arrived. We process the packet and if appropriate |
| 1547 | * pass the frame up the network stack |
| 1548 | */ |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1549 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1550 | static int velocity_receive_frame(struct velocity_info *vptr, int idx) |
| 1551 | { |
| 1552 | void (*pci_action)(struct pci_dev *, dma_addr_t, size_t, int); |
| 1553 | struct net_device_stats *stats = &vptr->stats; |
| 1554 | struct velocity_rd_info *rd_info = &(vptr->rd_info[idx]); |
| 1555 | struct rx_desc *rd = &(vptr->rd_ring[idx]); |
Al Viro | 4a51c0d | 2008-01-30 19:10:13 +0000 | [diff] [blame] | 1556 | int pkt_len = le16_to_cpu(rd->rdesc0.len) & 0x3fff; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1557 | struct sk_buff *skb; |
| 1558 | |
| 1559 | if (rd->rdesc0.RSR & (RSR_STP | RSR_EDP)) { |
| 1560 | VELOCITY_PRT(MSG_LEVEL_VERBOSE, KERN_ERR " %s : the received frame span multple RDs.\n", vptr->dev->name); |
| 1561 | stats->rx_length_errors++; |
| 1562 | return -EINVAL; |
| 1563 | } |
| 1564 | |
| 1565 | if (rd->rdesc0.RSR & RSR_MAR) |
| 1566 | vptr->stats.multicast++; |
| 1567 | |
| 1568 | skb = rd_info->skb; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1569 | |
| 1570 | pci_dma_sync_single_for_cpu(vptr->pdev, rd_info->skb_dma, |
| 1571 | vptr->rx_buf_sz, PCI_DMA_FROMDEVICE); |
| 1572 | |
| 1573 | /* |
| 1574 | * Drop frame not meeting IEEE 802.3 |
| 1575 | */ |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1576 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1577 | if (vptr->flags & VELOCITY_FLAGS_VAL_PKT_LEN) { |
| 1578 | if (rd->rdesc0.RSR & RSR_RL) { |
| 1579 | stats->rx_length_errors++; |
| 1580 | return -EINVAL; |
| 1581 | } |
| 1582 | } |
| 1583 | |
| 1584 | pci_action = pci_dma_sync_single_for_device; |
| 1585 | |
| 1586 | velocity_rx_csum(rd, skb); |
| 1587 | |
| 1588 | if (velocity_rx_copy(&skb, pkt_len, vptr) < 0) { |
| 1589 | velocity_iph_realign(vptr, skb, pkt_len); |
| 1590 | pci_action = pci_unmap_single; |
| 1591 | rd_info->skb = NULL; |
| 1592 | } |
| 1593 | |
| 1594 | pci_action(vptr->pdev, rd_info->skb_dma, vptr->rx_buf_sz, |
| 1595 | PCI_DMA_FROMDEVICE); |
| 1596 | |
| 1597 | skb_put(skb, pkt_len - 4); |
Arnaldo Carvalho de Melo | 4c13eb6 | 2007-04-25 17:40:23 -0700 | [diff] [blame] | 1598 | skb->protocol = eth_type_trans(skb, vptr->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1599 | |
| 1600 | stats->rx_bytes += pkt_len; |
| 1601 | netif_rx(skb); |
| 1602 | |
| 1603 | return 0; |
| 1604 | } |
| 1605 | |
| 1606 | /** |
| 1607 | * velocity_alloc_rx_buf - allocate aligned receive buffer |
| 1608 | * @vptr: velocity |
| 1609 | * @idx: ring index |
| 1610 | * |
| 1611 | * Allocate a new full sized buffer for the reception of a frame and |
| 1612 | * map it into PCI space for the hardware to use. The hardware |
| 1613 | * requires *64* byte alignment of the buffer which makes life |
| 1614 | * less fun than would be ideal. |
| 1615 | */ |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1616 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1617 | static int velocity_alloc_rx_buf(struct velocity_info *vptr, int idx) |
| 1618 | { |
| 1619 | struct rx_desc *rd = &(vptr->rd_ring[idx]); |
| 1620 | struct velocity_rd_info *rd_info = &(vptr->rd_info[idx]); |
| 1621 | |
| 1622 | rd_info->skb = dev_alloc_skb(vptr->rx_buf_sz + 64); |
| 1623 | if (rd_info->skb == NULL) |
| 1624 | return -ENOMEM; |
| 1625 | |
| 1626 | /* |
| 1627 | * Do the gymnastics to get the buffer head for data at |
| 1628 | * 64byte alignment. |
| 1629 | */ |
David S. Miller | 689be43 | 2005-06-28 15:25:31 -0700 | [diff] [blame] | 1630 | skb_reserve(rd_info->skb, (unsigned long) rd_info->skb->data & 63); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1631 | rd_info->skb->dev = vptr->dev; |
David S. Miller | 689be43 | 2005-06-28 15:25:31 -0700 | [diff] [blame] | 1632 | rd_info->skb_dma = pci_map_single(vptr->pdev, rd_info->skb->data, vptr->rx_buf_sz, PCI_DMA_FROMDEVICE); |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1633 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1634 | /* |
| 1635 | * Fill in the descriptor to match |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1636 | */ |
| 1637 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1638 | *((u32 *) & (rd->rdesc0)) = 0; |
Al Viro | 4a51c0d | 2008-01-30 19:10:13 +0000 | [diff] [blame] | 1639 | rd->size = cpu_to_le16(vptr->rx_buf_sz) | RX_INTEN; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1640 | rd->pa_low = cpu_to_le32(rd_info->skb_dma); |
| 1641 | rd->pa_high = 0; |
| 1642 | return 0; |
| 1643 | } |
| 1644 | |
| 1645 | /** |
| 1646 | * tx_srv - transmit interrupt service |
| 1647 | * @vptr; Velocity |
| 1648 | * @status: |
| 1649 | * |
| 1650 | * Scan the queues looking for transmitted packets that |
| 1651 | * we can complete and clean up. Update any statistics as |
Robert P. J. Day | 3a4fa0a | 2007-10-19 23:10:43 +0200 | [diff] [blame] | 1652 | * necessary/ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1653 | */ |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1654 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1655 | static int velocity_tx_srv(struct velocity_info *vptr, u32 status) |
| 1656 | { |
| 1657 | struct tx_desc *td; |
| 1658 | int qnum; |
| 1659 | int full = 0; |
| 1660 | int idx; |
| 1661 | int works = 0; |
| 1662 | struct velocity_td_info *tdinfo; |
| 1663 | struct net_device_stats *stats = &vptr->stats; |
| 1664 | |
| 1665 | for (qnum = 0; qnum < vptr->num_txq; qnum++) { |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1666 | for (idx = vptr->td_tail[qnum]; vptr->td_used[qnum] > 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1667 | idx = (idx + 1) % vptr->options.numtx) { |
| 1668 | |
| 1669 | /* |
| 1670 | * Get Tx Descriptor |
| 1671 | */ |
| 1672 | td = &(vptr->td_rings[qnum][idx]); |
| 1673 | tdinfo = &(vptr->td_infos[qnum][idx]); |
| 1674 | |
Al Viro | 4a51c0d | 2008-01-30 19:10:13 +0000 | [diff] [blame] | 1675 | if (td->tdesc0.len & OWNED_BY_NIC) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1676 | break; |
| 1677 | |
| 1678 | if ((works++ > 15)) |
| 1679 | break; |
| 1680 | |
| 1681 | if (td->tdesc0.TSR & TSR0_TERR) { |
| 1682 | stats->tx_errors++; |
| 1683 | stats->tx_dropped++; |
| 1684 | if (td->tdesc0.TSR & TSR0_CDH) |
| 1685 | stats->tx_heartbeat_errors++; |
| 1686 | if (td->tdesc0.TSR & TSR0_CRS) |
| 1687 | stats->tx_carrier_errors++; |
| 1688 | if (td->tdesc0.TSR & TSR0_ABT) |
| 1689 | stats->tx_aborted_errors++; |
| 1690 | if (td->tdesc0.TSR & TSR0_OWC) |
| 1691 | stats->tx_window_errors++; |
| 1692 | } else { |
| 1693 | stats->tx_packets++; |
| 1694 | stats->tx_bytes += tdinfo->skb->len; |
| 1695 | } |
| 1696 | velocity_free_tx_buf(vptr, tdinfo); |
| 1697 | vptr->td_used[qnum]--; |
| 1698 | } |
| 1699 | vptr->td_tail[qnum] = idx; |
| 1700 | |
| 1701 | if (AVAIL_TD(vptr, qnum) < 1) { |
| 1702 | full = 1; |
| 1703 | } |
| 1704 | } |
| 1705 | /* |
| 1706 | * Look to see if we should kick the transmit network |
| 1707 | * layer for more work. |
| 1708 | */ |
| 1709 | if (netif_queue_stopped(vptr->dev) && (full == 0) |
| 1710 | && (!(vptr->mii_status & VELOCITY_LINK_FAIL))) { |
| 1711 | netif_wake_queue(vptr->dev); |
| 1712 | } |
| 1713 | return works; |
| 1714 | } |
| 1715 | |
| 1716 | /** |
| 1717 | * velocity_print_link_status - link status reporting |
| 1718 | * @vptr: velocity to report on |
| 1719 | * |
| 1720 | * Turn the link status of the velocity card into a kernel log |
| 1721 | * description of the new link state, detailing speed and duplex |
| 1722 | * status |
| 1723 | */ |
| 1724 | |
| 1725 | static void velocity_print_link_status(struct velocity_info *vptr) |
| 1726 | { |
| 1727 | |
| 1728 | if (vptr->mii_status & VELOCITY_LINK_FAIL) { |
| 1729 | VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: failed to detect cable link\n", vptr->dev->name); |
| 1730 | } else if (vptr->options.spd_dpx == SPD_DPX_AUTO) { |
Dave Jones | b4fea61 | 2007-06-06 03:07:52 -0400 | [diff] [blame] | 1731 | VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: Link auto-negotiation", vptr->dev->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1732 | |
| 1733 | if (vptr->mii_status & VELOCITY_SPEED_1000) |
| 1734 | VELOCITY_PRT(MSG_LEVEL_INFO, " speed 1000M bps"); |
| 1735 | else if (vptr->mii_status & VELOCITY_SPEED_100) |
| 1736 | VELOCITY_PRT(MSG_LEVEL_INFO, " speed 100M bps"); |
| 1737 | else |
| 1738 | VELOCITY_PRT(MSG_LEVEL_INFO, " speed 10M bps"); |
| 1739 | |
| 1740 | if (vptr->mii_status & VELOCITY_DUPLEX_FULL) |
| 1741 | VELOCITY_PRT(MSG_LEVEL_INFO, " full duplex\n"); |
| 1742 | else |
| 1743 | VELOCITY_PRT(MSG_LEVEL_INFO, " half duplex\n"); |
| 1744 | } else { |
| 1745 | VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: Link forced", vptr->dev->name); |
| 1746 | switch (vptr->options.spd_dpx) { |
| 1747 | case SPD_DPX_100_HALF: |
| 1748 | VELOCITY_PRT(MSG_LEVEL_INFO, " speed 100M bps half duplex\n"); |
| 1749 | break; |
| 1750 | case SPD_DPX_100_FULL: |
| 1751 | VELOCITY_PRT(MSG_LEVEL_INFO, " speed 100M bps full duplex\n"); |
| 1752 | break; |
| 1753 | case SPD_DPX_10_HALF: |
| 1754 | VELOCITY_PRT(MSG_LEVEL_INFO, " speed 10M bps half duplex\n"); |
| 1755 | break; |
| 1756 | case SPD_DPX_10_FULL: |
| 1757 | VELOCITY_PRT(MSG_LEVEL_INFO, " speed 10M bps full duplex\n"); |
| 1758 | break; |
| 1759 | default: |
| 1760 | break; |
| 1761 | } |
| 1762 | } |
| 1763 | } |
| 1764 | |
| 1765 | /** |
| 1766 | * velocity_error - handle error from controller |
| 1767 | * @vptr: velocity |
| 1768 | * @status: card status |
| 1769 | * |
| 1770 | * Process an error report from the hardware and attempt to recover |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1771 | * the card itself. At the moment we cannot recover from some |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1772 | * theoretically impossible errors but this could be fixed using |
| 1773 | * the pci_device_failed logic to bounce the hardware |
| 1774 | * |
| 1775 | */ |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1776 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1777 | static void velocity_error(struct velocity_info *vptr, int status) |
| 1778 | { |
| 1779 | |
| 1780 | if (status & ISR_TXSTLI) { |
| 1781 | struct mac_regs __iomem * regs = vptr->mac_regs; |
| 1782 | |
Eddy L O Jansson | 0e6ff15 | 2007-07-31 00:38:53 -0700 | [diff] [blame] | 1783 | printk(KERN_ERR "TD structure error TDindex=%hx\n", readw(®s->TDIdx[0])); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1784 | BYTE_REG_BITS_ON(TXESR_TDSTR, ®s->TXESR); |
| 1785 | writew(TRDCSR_RUN, ®s->TDCSRClr); |
| 1786 | netif_stop_queue(vptr->dev); |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1787 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1788 | /* FIXME: port over the pci_device_failed code and use it |
| 1789 | here */ |
| 1790 | } |
| 1791 | |
| 1792 | if (status & ISR_SRCI) { |
| 1793 | struct mac_regs __iomem * regs = vptr->mac_regs; |
| 1794 | int linked; |
| 1795 | |
| 1796 | if (vptr->options.spd_dpx == SPD_DPX_AUTO) { |
| 1797 | vptr->mii_status = check_connection_type(regs); |
| 1798 | |
| 1799 | /* |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1800 | * If it is a 3119, disable frame bursting in |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1801 | * halfduplex mode and enable it in fullduplex |
| 1802 | * mode |
| 1803 | */ |
| 1804 | if (vptr->rev_id < REV_ID_VT3216_A0) { |
| 1805 | if (vptr->mii_status | VELOCITY_DUPLEX_FULL) |
| 1806 | BYTE_REG_BITS_ON(TCR_TB2BDIS, ®s->TCR); |
| 1807 | else |
| 1808 | BYTE_REG_BITS_OFF(TCR_TB2BDIS, ®s->TCR); |
| 1809 | } |
| 1810 | /* |
| 1811 | * Only enable CD heart beat counter in 10HD mode |
| 1812 | */ |
| 1813 | if (!(vptr->mii_status & VELOCITY_DUPLEX_FULL) && (vptr->mii_status & VELOCITY_SPEED_10)) { |
| 1814 | BYTE_REG_BITS_OFF(TESTCFG_HBDIS, ®s->TESTCFG); |
| 1815 | } else { |
| 1816 | BYTE_REG_BITS_ON(TESTCFG_HBDIS, ®s->TESTCFG); |
| 1817 | } |
| 1818 | } |
| 1819 | /* |
| 1820 | * Get link status from PHYSR0 |
| 1821 | */ |
| 1822 | linked = readb(®s->PHYSR0) & PHYSR0_LINKGD; |
| 1823 | |
| 1824 | if (linked) { |
| 1825 | vptr->mii_status &= ~VELOCITY_LINK_FAIL; |
Francois Romieu | 8a22ddd | 2006-06-23 00:47:06 +0200 | [diff] [blame] | 1826 | netif_carrier_on(vptr->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1827 | } else { |
| 1828 | vptr->mii_status |= VELOCITY_LINK_FAIL; |
Francois Romieu | 8a22ddd | 2006-06-23 00:47:06 +0200 | [diff] [blame] | 1829 | netif_carrier_off(vptr->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1830 | } |
| 1831 | |
| 1832 | velocity_print_link_status(vptr); |
| 1833 | enable_flow_control_ability(vptr); |
| 1834 | |
| 1835 | /* |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1836 | * Re-enable auto-polling because SRCI will disable |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1837 | * auto-polling |
| 1838 | */ |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1839 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1840 | enable_mii_autopoll(regs); |
| 1841 | |
| 1842 | if (vptr->mii_status & VELOCITY_LINK_FAIL) |
| 1843 | netif_stop_queue(vptr->dev); |
| 1844 | else |
| 1845 | netif_wake_queue(vptr->dev); |
| 1846 | |
| 1847 | }; |
| 1848 | if (status & ISR_MIBFI) |
| 1849 | velocity_update_hw_mibs(vptr); |
| 1850 | if (status & ISR_LSTEI) |
| 1851 | mac_rx_queue_wake(vptr->mac_regs); |
| 1852 | } |
| 1853 | |
| 1854 | /** |
| 1855 | * velocity_free_tx_buf - free transmit buffer |
| 1856 | * @vptr: velocity |
| 1857 | * @tdinfo: buffer |
| 1858 | * |
| 1859 | * Release an transmit buffer. If the buffer was preallocated then |
| 1860 | * recycle it, if not then unmap the buffer. |
| 1861 | */ |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1862 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1863 | static void velocity_free_tx_buf(struct velocity_info *vptr, struct velocity_td_info *tdinfo) |
| 1864 | { |
| 1865 | struct sk_buff *skb = tdinfo->skb; |
| 1866 | int i; |
| 1867 | |
| 1868 | /* |
| 1869 | * Don't unmap the pre-allocated tx_bufs |
| 1870 | */ |
| 1871 | if (tdinfo->skb_dma && (tdinfo->skb_dma[0] != tdinfo->buf_dma)) { |
| 1872 | |
| 1873 | for (i = 0; i < tdinfo->nskb_dma; i++) { |
| 1874 | #ifdef VELOCITY_ZERO_COPY_SUPPORT |
Al Viro | 4a51c0d | 2008-01-30 19:10:13 +0000 | [diff] [blame] | 1875 | pci_unmap_single(vptr->pdev, tdinfo->skb_dma[i], le16_to_cpu(td->tdesc1.len), PCI_DMA_TODEVICE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1876 | #else |
| 1877 | pci_unmap_single(vptr->pdev, tdinfo->skb_dma[i], skb->len, PCI_DMA_TODEVICE); |
| 1878 | #endif |
| 1879 | tdinfo->skb_dma[i] = 0; |
| 1880 | } |
| 1881 | } |
| 1882 | dev_kfree_skb_irq(skb); |
| 1883 | tdinfo->skb = NULL; |
| 1884 | } |
| 1885 | |
| 1886 | /** |
| 1887 | * velocity_open - interface activation callback |
| 1888 | * @dev: network layer device to open |
| 1889 | * |
| 1890 | * Called when the network layer brings the interface up. Returns |
| 1891 | * a negative posix error code on failure, or zero on success. |
| 1892 | * |
| 1893 | * All the ring allocation and set up is done on open for this |
| 1894 | * adapter to minimise memory usage when inactive |
| 1895 | */ |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1896 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1897 | static int velocity_open(struct net_device *dev) |
| 1898 | { |
Jeff Garzik | 8ab6f3f | 2006-06-27 08:56:23 -0400 | [diff] [blame] | 1899 | struct velocity_info *vptr = netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1900 | int ret; |
| 1901 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1902 | ret = velocity_init_rings(vptr); |
| 1903 | if (ret < 0) |
| 1904 | goto out; |
| 1905 | |
| 1906 | ret = velocity_init_rd_ring(vptr); |
| 1907 | if (ret < 0) |
| 1908 | goto err_free_desc_rings; |
| 1909 | |
| 1910 | ret = velocity_init_td_ring(vptr); |
| 1911 | if (ret < 0) |
| 1912 | goto err_free_rd_ring; |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1913 | |
| 1914 | /* Ensure chip is running */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1915 | pci_set_power_state(vptr->pdev, PCI_D0); |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1916 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1917 | velocity_init_registers(vptr, VELOCITY_INIT_COLD); |
| 1918 | |
Thomas Gleixner | 1fb9df5 | 2006-07-01 19:29:39 -0700 | [diff] [blame] | 1919 | ret = request_irq(vptr->pdev->irq, &velocity_intr, IRQF_SHARED, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1920 | dev->name, dev); |
| 1921 | if (ret < 0) { |
| 1922 | /* Power down the chip */ |
| 1923 | pci_set_power_state(vptr->pdev, PCI_D3hot); |
| 1924 | goto err_free_td_ring; |
| 1925 | } |
| 1926 | |
| 1927 | mac_enable_int(vptr->mac_regs); |
| 1928 | netif_start_queue(dev); |
| 1929 | vptr->flags |= VELOCITY_FLAGS_OPENED; |
| 1930 | out: |
| 1931 | return ret; |
| 1932 | |
| 1933 | err_free_td_ring: |
| 1934 | velocity_free_td_ring(vptr); |
| 1935 | err_free_rd_ring: |
| 1936 | velocity_free_rd_ring(vptr); |
| 1937 | err_free_desc_rings: |
| 1938 | velocity_free_rings(vptr); |
| 1939 | goto out; |
| 1940 | } |
| 1941 | |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1942 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1943 | * velocity_change_mtu - MTU change callback |
| 1944 | * @dev: network device |
| 1945 | * @new_mtu: desired MTU |
| 1946 | * |
| 1947 | * Handle requests from the networking layer for MTU change on |
| 1948 | * this interface. It gets called on a change by the network layer. |
| 1949 | * Return zero for success or negative posix error code. |
| 1950 | */ |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1951 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1952 | static int velocity_change_mtu(struct net_device *dev, int new_mtu) |
| 1953 | { |
Jeff Garzik | 8ab6f3f | 2006-06-27 08:56:23 -0400 | [diff] [blame] | 1954 | struct velocity_info *vptr = netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1955 | unsigned long flags; |
| 1956 | int oldmtu = dev->mtu; |
| 1957 | int ret = 0; |
| 1958 | |
| 1959 | if ((new_mtu < VELOCITY_MIN_MTU) || new_mtu > (VELOCITY_MAX_MTU)) { |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1960 | VELOCITY_PRT(MSG_LEVEL_ERR, KERN_NOTICE "%s: Invalid MTU.\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1961 | vptr->dev->name); |
| 1962 | return -EINVAL; |
| 1963 | } |
| 1964 | |
Stephen Hemminger | bd7b3f3 | 2007-11-14 19:47:27 -0800 | [diff] [blame] | 1965 | if (!netif_running(dev)) { |
| 1966 | dev->mtu = new_mtu; |
| 1967 | return 0; |
| 1968 | } |
| 1969 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1970 | if (new_mtu != oldmtu) { |
| 1971 | spin_lock_irqsave(&vptr->lock, flags); |
| 1972 | |
| 1973 | netif_stop_queue(dev); |
| 1974 | velocity_shutdown(vptr); |
| 1975 | |
| 1976 | velocity_free_td_ring(vptr); |
| 1977 | velocity_free_rd_ring(vptr); |
| 1978 | |
| 1979 | dev->mtu = new_mtu; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1980 | |
| 1981 | ret = velocity_init_rd_ring(vptr); |
| 1982 | if (ret < 0) |
| 1983 | goto out_unlock; |
| 1984 | |
| 1985 | ret = velocity_init_td_ring(vptr); |
| 1986 | if (ret < 0) |
| 1987 | goto out_unlock; |
| 1988 | |
| 1989 | velocity_init_registers(vptr, VELOCITY_INIT_COLD); |
| 1990 | |
| 1991 | mac_enable_int(vptr->mac_regs); |
| 1992 | netif_start_queue(dev); |
| 1993 | out_unlock: |
| 1994 | spin_unlock_irqrestore(&vptr->lock, flags); |
| 1995 | } |
| 1996 | |
| 1997 | return ret; |
| 1998 | } |
| 1999 | |
| 2000 | /** |
| 2001 | * velocity_shutdown - shut down the chip |
| 2002 | * @vptr: velocity to deactivate |
| 2003 | * |
| 2004 | * Shuts down the internal operations of the velocity and |
| 2005 | * disables interrupts, autopolling, transmit and receive |
| 2006 | */ |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2007 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2008 | static void velocity_shutdown(struct velocity_info *vptr) |
| 2009 | { |
| 2010 | struct mac_regs __iomem * regs = vptr->mac_regs; |
| 2011 | mac_disable_int(regs); |
| 2012 | writel(CR0_STOP, ®s->CR0Set); |
| 2013 | writew(0xFFFF, ®s->TDCSRClr); |
| 2014 | writeb(0xFF, ®s->RDCSRClr); |
| 2015 | safe_disable_mii_autopoll(regs); |
| 2016 | mac_clear_isr(regs); |
| 2017 | } |
| 2018 | |
| 2019 | /** |
| 2020 | * velocity_close - close adapter callback |
| 2021 | * @dev: network device |
| 2022 | * |
| 2023 | * Callback from the network layer when the velocity is being |
| 2024 | * deactivated by the network layer |
| 2025 | */ |
| 2026 | |
| 2027 | static int velocity_close(struct net_device *dev) |
| 2028 | { |
Jeff Garzik | 8ab6f3f | 2006-06-27 08:56:23 -0400 | [diff] [blame] | 2029 | struct velocity_info *vptr = netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2030 | |
| 2031 | netif_stop_queue(dev); |
| 2032 | velocity_shutdown(vptr); |
| 2033 | |
| 2034 | if (vptr->flags & VELOCITY_FLAGS_WOL_ENABLED) |
| 2035 | velocity_get_ip(vptr); |
| 2036 | if (dev->irq != 0) |
| 2037 | free_irq(dev->irq, dev); |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2038 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2039 | /* Power down the chip */ |
| 2040 | pci_set_power_state(vptr->pdev, PCI_D3hot); |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2041 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2042 | /* Free the resources */ |
| 2043 | velocity_free_td_ring(vptr); |
| 2044 | velocity_free_rd_ring(vptr); |
| 2045 | velocity_free_rings(vptr); |
| 2046 | |
| 2047 | vptr->flags &= (~VELOCITY_FLAGS_OPENED); |
| 2048 | return 0; |
| 2049 | } |
| 2050 | |
| 2051 | /** |
| 2052 | * velocity_xmit - transmit packet callback |
| 2053 | * @skb: buffer to transmit |
| 2054 | * @dev: network device |
| 2055 | * |
| 2056 | * Called by the networ layer to request a packet is queued to |
| 2057 | * the velocity. Returns zero on success. |
| 2058 | */ |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2059 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2060 | static int velocity_xmit(struct sk_buff *skb, struct net_device *dev) |
| 2061 | { |
Jeff Garzik | 8ab6f3f | 2006-06-27 08:56:23 -0400 | [diff] [blame] | 2062 | struct velocity_info *vptr = netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2063 | int qnum = 0; |
| 2064 | struct tx_desc *td_ptr; |
| 2065 | struct velocity_td_info *tdinfo; |
| 2066 | unsigned long flags; |
| 2067 | int index; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2068 | int pktlen = skb->len; |
Al Viro | 4a51c0d | 2008-01-30 19:10:13 +0000 | [diff] [blame] | 2069 | __le16 len = cpu_to_le16(pktlen); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2070 | |
Herbert Xu | 364c6ba | 2006-06-09 16:10:40 -0700 | [diff] [blame] | 2071 | #ifdef VELOCITY_ZERO_COPY_SUPPORT |
| 2072 | if (skb_shinfo(skb)->nr_frags > 6 && __skb_linearize(skb)) { |
| 2073 | kfree_skb(skb); |
| 2074 | return 0; |
| 2075 | } |
| 2076 | #endif |
| 2077 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2078 | spin_lock_irqsave(&vptr->lock, flags); |
| 2079 | |
| 2080 | index = vptr->td_curr[qnum]; |
| 2081 | td_ptr = &(vptr->td_rings[qnum][index]); |
| 2082 | tdinfo = &(vptr->td_infos[qnum][index]); |
| 2083 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2084 | td_ptr->tdesc1.TCR = TCR0_TIC; |
Al Viro | 4a51c0d | 2008-01-30 19:10:13 +0000 | [diff] [blame] | 2085 | td_ptr->td_buf[0].size &= ~TD_QUEUE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2086 | |
| 2087 | /* |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2088 | * Pad short frames. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2089 | */ |
| 2090 | if (pktlen < ETH_ZLEN) { |
| 2091 | /* Cannot occur until ZC support */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2092 | pktlen = ETH_ZLEN; |
Al Viro | 4a51c0d | 2008-01-30 19:10:13 +0000 | [diff] [blame] | 2093 | len = cpu_to_le16(ETH_ZLEN); |
Arnaldo Carvalho de Melo | d626f62 | 2007-03-27 18:55:52 -0300 | [diff] [blame] | 2094 | skb_copy_from_linear_data(skb, tdinfo->buf, skb->len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2095 | memset(tdinfo->buf + skb->len, 0, ETH_ZLEN - skb->len); |
| 2096 | tdinfo->skb = skb; |
| 2097 | tdinfo->skb_dma[0] = tdinfo->buf_dma; |
Al Viro | 4a51c0d | 2008-01-30 19:10:13 +0000 | [diff] [blame] | 2098 | td_ptr->tdesc0.len = len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2099 | td_ptr->td_buf[0].pa_low = cpu_to_le32(tdinfo->skb_dma[0]); |
| 2100 | td_ptr->td_buf[0].pa_high = 0; |
Al Viro | 4a51c0d | 2008-01-30 19:10:13 +0000 | [diff] [blame] | 2101 | td_ptr->td_buf[0].size = len; /* queue is 0 anyway */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2102 | tdinfo->nskb_dma = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2103 | } else |
| 2104 | #ifdef VELOCITY_ZERO_COPY_SUPPORT |
| 2105 | if (skb_shinfo(skb)->nr_frags > 0) { |
| 2106 | int nfrags = skb_shinfo(skb)->nr_frags; |
| 2107 | tdinfo->skb = skb; |
| 2108 | if (nfrags > 6) { |
Arnaldo Carvalho de Melo | d626f62 | 2007-03-27 18:55:52 -0300 | [diff] [blame] | 2109 | skb_copy_from_linear_data(skb, tdinfo->buf, skb->len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2110 | tdinfo->skb_dma[0] = tdinfo->buf_dma; |
Al Viro | 4a51c0d | 2008-01-30 19:10:13 +0000 | [diff] [blame] | 2111 | td_ptr->tdesc0.len = len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2112 | td_ptr->td_buf[0].pa_low = cpu_to_le32(tdinfo->skb_dma[0]); |
| 2113 | td_ptr->td_buf[0].pa_high = 0; |
Al Viro | 4a51c0d | 2008-01-30 19:10:13 +0000 | [diff] [blame] | 2114 | td_ptr->td_buf[0].size = len; /* queue is 0 anyway */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2115 | tdinfo->nskb_dma = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2116 | } else { |
| 2117 | int i = 0; |
| 2118 | tdinfo->nskb_dma = 0; |
Al Viro | 4a51c0d | 2008-01-30 19:10:13 +0000 | [diff] [blame] | 2119 | tdinfo->skb_dma[i] = pci_map_single(vptr->pdev, skb->data, |
| 2120 | skb_headlen(skb), PCI_DMA_TODEVICE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2121 | |
Al Viro | 4a51c0d | 2008-01-30 19:10:13 +0000 | [diff] [blame] | 2122 | td_ptr->tdesc0.len = len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2123 | |
| 2124 | /* FIXME: support 48bit DMA later */ |
| 2125 | td_ptr->td_buf[i].pa_low = cpu_to_le32(tdinfo->skb_dma); |
| 2126 | td_ptr->td_buf[i].pa_high = 0; |
Al Viro | 4a51c0d | 2008-01-30 19:10:13 +0000 | [diff] [blame] | 2127 | td_ptr->td_buf[i].size = cpu_to_le16(skb_headlen(skb)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2128 | |
| 2129 | for (i = 0; i < nfrags; i++) { |
| 2130 | skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; |
Al Viro | 4a51c0d | 2008-01-30 19:10:13 +0000 | [diff] [blame] | 2131 | void *addr = (void *)page_address(frag->page) + frag->page_offset; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2132 | |
| 2133 | tdinfo->skb_dma[i + 1] = pci_map_single(vptr->pdev, addr, frag->size, PCI_DMA_TODEVICE); |
| 2134 | |
| 2135 | td_ptr->td_buf[i + 1].pa_low = cpu_to_le32(tdinfo->skb_dma[i + 1]); |
| 2136 | td_ptr->td_buf[i + 1].pa_high = 0; |
Al Viro | 4a51c0d | 2008-01-30 19:10:13 +0000 | [diff] [blame] | 2137 | td_ptr->td_buf[i + 1].size = cpu_to_le16(frag->size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2138 | } |
| 2139 | tdinfo->nskb_dma = i - 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2140 | } |
| 2141 | |
| 2142 | } else |
| 2143 | #endif |
| 2144 | { |
| 2145 | /* |
| 2146 | * Map the linear network buffer into PCI space and |
| 2147 | * add it to the transmit ring. |
| 2148 | */ |
| 2149 | tdinfo->skb = skb; |
| 2150 | tdinfo->skb_dma[0] = pci_map_single(vptr->pdev, skb->data, pktlen, PCI_DMA_TODEVICE); |
Al Viro | 4a51c0d | 2008-01-30 19:10:13 +0000 | [diff] [blame] | 2151 | td_ptr->tdesc0.len = len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2152 | td_ptr->td_buf[0].pa_low = cpu_to_le32(tdinfo->skb_dma[0]); |
| 2153 | td_ptr->td_buf[0].pa_high = 0; |
Al Viro | 4a51c0d | 2008-01-30 19:10:13 +0000 | [diff] [blame] | 2154 | td_ptr->td_buf[0].size = len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2155 | tdinfo->nskb_dma = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2156 | } |
Al Viro | 4a51c0d | 2008-01-30 19:10:13 +0000 | [diff] [blame] | 2157 | td_ptr->tdesc1.cmd = TCPLS_NORMAL + (tdinfo->nskb_dma + 1) * 16; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2158 | |
Stephen Hemminger | 501e4d2 | 2007-08-24 13:56:49 -0700 | [diff] [blame] | 2159 | if (vptr->vlgrp && vlan_tx_tag_present(skb)) { |
Al Viro | 4a51c0d | 2008-01-30 19:10:13 +0000 | [diff] [blame] | 2160 | td_ptr->tdesc1.vlan = cpu_to_le16(vlan_tx_tag_get(skb)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2161 | td_ptr->tdesc1.TCR |= TCR0_VETAG; |
| 2162 | } |
| 2163 | |
| 2164 | /* |
| 2165 | * Handle hardware checksum |
| 2166 | */ |
| 2167 | if ((vptr->flags & VELOCITY_FLAGS_TX_CSUM) |
Patrick McHardy | 84fa793 | 2006-08-29 16:44:56 -0700 | [diff] [blame] | 2168 | && (skb->ip_summed == CHECKSUM_PARTIAL)) { |
Arnaldo Carvalho de Melo | eddc9ec | 2007-04-20 22:47:35 -0700 | [diff] [blame] | 2169 | const struct iphdr *ip = ip_hdr(skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2170 | if (ip->protocol == IPPROTO_TCP) |
| 2171 | td_ptr->tdesc1.TCR |= TCR0_TCPCK; |
| 2172 | else if (ip->protocol == IPPROTO_UDP) |
| 2173 | td_ptr->tdesc1.TCR |= (TCR0_UDPCK); |
| 2174 | td_ptr->tdesc1.TCR |= TCR0_IPCK; |
| 2175 | } |
| 2176 | { |
| 2177 | |
| 2178 | int prev = index - 1; |
| 2179 | |
| 2180 | if (prev < 0) |
| 2181 | prev = vptr->options.numtx - 1; |
Al Viro | 4a51c0d | 2008-01-30 19:10:13 +0000 | [diff] [blame] | 2182 | td_ptr->tdesc0.len |= OWNED_BY_NIC; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2183 | vptr->td_used[qnum]++; |
| 2184 | vptr->td_curr[qnum] = (index + 1) % vptr->options.numtx; |
| 2185 | |
| 2186 | if (AVAIL_TD(vptr, qnum) < 1) |
| 2187 | netif_stop_queue(dev); |
| 2188 | |
| 2189 | td_ptr = &(vptr->td_rings[qnum][prev]); |
Al Viro | 4a51c0d | 2008-01-30 19:10:13 +0000 | [diff] [blame] | 2190 | td_ptr->td_buf[0].size |= TD_QUEUE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2191 | mac_tx_queue_wake(vptr->mac_regs, qnum); |
| 2192 | } |
| 2193 | dev->trans_start = jiffies; |
| 2194 | spin_unlock_irqrestore(&vptr->lock, flags); |
| 2195 | return 0; |
| 2196 | } |
| 2197 | |
| 2198 | /** |
| 2199 | * velocity_intr - interrupt callback |
| 2200 | * @irq: interrupt number |
| 2201 | * @dev_instance: interrupting device |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2202 | * |
| 2203 | * Called whenever an interrupt is generated by the velocity |
| 2204 | * adapter IRQ line. We may not be the source of the interrupt |
| 2205 | * and need to identify initially if we are, and if not exit as |
| 2206 | * efficiently as possible. |
| 2207 | */ |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2208 | |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 2209 | static int velocity_intr(int irq, void *dev_instance) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2210 | { |
| 2211 | struct net_device *dev = dev_instance; |
Jeff Garzik | 8ab6f3f | 2006-06-27 08:56:23 -0400 | [diff] [blame] | 2212 | struct velocity_info *vptr = netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2213 | u32 isr_status; |
| 2214 | int max_count = 0; |
| 2215 | |
| 2216 | |
| 2217 | spin_lock(&vptr->lock); |
| 2218 | isr_status = mac_read_isr(vptr->mac_regs); |
| 2219 | |
| 2220 | /* Not us ? */ |
| 2221 | if (isr_status == 0) { |
| 2222 | spin_unlock(&vptr->lock); |
| 2223 | return IRQ_NONE; |
| 2224 | } |
| 2225 | |
| 2226 | mac_disable_int(vptr->mac_regs); |
| 2227 | |
| 2228 | /* |
| 2229 | * Keep processing the ISR until we have completed |
| 2230 | * processing and the isr_status becomes zero |
| 2231 | */ |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2232 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2233 | while (isr_status != 0) { |
| 2234 | mac_write_isr(vptr->mac_regs, isr_status); |
| 2235 | if (isr_status & (~(ISR_PRXI | ISR_PPRXI | ISR_PTXI | ISR_PPTXI))) |
| 2236 | velocity_error(vptr, isr_status); |
| 2237 | if (isr_status & (ISR_PRXI | ISR_PPRXI)) |
| 2238 | max_count += velocity_rx_srv(vptr, isr_status); |
| 2239 | if (isr_status & (ISR_PTXI | ISR_PPTXI)) |
| 2240 | max_count += velocity_tx_srv(vptr, isr_status); |
| 2241 | isr_status = mac_read_isr(vptr->mac_regs); |
| 2242 | if (max_count > vptr->options.int_works) |
| 2243 | { |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2244 | printk(KERN_WARNING "%s: excessive work at interrupt.\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2245 | dev->name); |
| 2246 | max_count = 0; |
| 2247 | } |
| 2248 | } |
| 2249 | spin_unlock(&vptr->lock); |
| 2250 | mac_enable_int(vptr->mac_regs); |
| 2251 | return IRQ_HANDLED; |
| 2252 | |
| 2253 | } |
| 2254 | |
| 2255 | |
| 2256 | /** |
| 2257 | * velocity_set_multi - filter list change callback |
| 2258 | * @dev: network device |
| 2259 | * |
| 2260 | * Called by the network layer when the filter lists need to change |
| 2261 | * for a velocity adapter. Reload the CAMs with the new address |
| 2262 | * filter ruleset. |
| 2263 | */ |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2264 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2265 | static void velocity_set_multi(struct net_device *dev) |
| 2266 | { |
Jeff Garzik | 8ab6f3f | 2006-06-27 08:56:23 -0400 | [diff] [blame] | 2267 | struct velocity_info *vptr = netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2268 | struct mac_regs __iomem * regs = vptr->mac_regs; |
| 2269 | u8 rx_mode; |
| 2270 | int i; |
| 2271 | struct dev_mc_list *mclist; |
| 2272 | |
| 2273 | if (dev->flags & IFF_PROMISC) { /* Set promiscuous. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2274 | writel(0xffffffff, ®s->MARCAM[0]); |
| 2275 | writel(0xffffffff, ®s->MARCAM[4]); |
| 2276 | rx_mode = (RCR_AM | RCR_AB | RCR_PROM); |
| 2277 | } else if ((dev->mc_count > vptr->multicast_limit) |
| 2278 | || (dev->flags & IFF_ALLMULTI)) { |
| 2279 | writel(0xffffffff, ®s->MARCAM[0]); |
| 2280 | writel(0xffffffff, ®s->MARCAM[4]); |
| 2281 | rx_mode = (RCR_AM | RCR_AB); |
| 2282 | } else { |
| 2283 | int offset = MCAM_SIZE - vptr->multicast_limit; |
Stephen Hemminger | 01faccb | 2007-08-24 14:40:45 -0700 | [diff] [blame] | 2284 | mac_get_cam_mask(regs, vptr->mCAMmask); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2285 | |
| 2286 | for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count; i++, mclist = mclist->next) { |
Stephen Hemminger | 01faccb | 2007-08-24 14:40:45 -0700 | [diff] [blame] | 2287 | mac_set_cam(regs, i + offset, mclist->dmi_addr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2288 | vptr->mCAMmask[(offset + i) / 8] |= 1 << ((offset + i) & 7); |
| 2289 | } |
| 2290 | |
Stephen Hemminger | 01faccb | 2007-08-24 14:40:45 -0700 | [diff] [blame] | 2291 | mac_set_cam_mask(regs, vptr->mCAMmask); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2292 | rx_mode = (RCR_AM | RCR_AB); |
| 2293 | } |
| 2294 | if (dev->mtu > 1500) |
| 2295 | rx_mode |= RCR_AL; |
| 2296 | |
| 2297 | BYTE_REG_BITS_ON(rx_mode, ®s->RCR); |
| 2298 | |
| 2299 | } |
| 2300 | |
| 2301 | /** |
| 2302 | * velocity_get_status - statistics callback |
| 2303 | * @dev: network device |
| 2304 | * |
| 2305 | * Callback from the network layer to allow driver statistics |
| 2306 | * to be resynchronized with hardware collected state. In the |
| 2307 | * case of the velocity we need to pull the MIB counters from |
| 2308 | * the hardware into the counters before letting the network |
| 2309 | * layer display them. |
| 2310 | */ |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2311 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2312 | static struct net_device_stats *velocity_get_stats(struct net_device *dev) |
| 2313 | { |
Jeff Garzik | 8ab6f3f | 2006-06-27 08:56:23 -0400 | [diff] [blame] | 2314 | struct velocity_info *vptr = netdev_priv(dev); |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2315 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2316 | /* If the hardware is down, don't touch MII */ |
| 2317 | if(!netif_running(dev)) |
| 2318 | return &vptr->stats; |
| 2319 | |
| 2320 | spin_lock_irq(&vptr->lock); |
| 2321 | velocity_update_hw_mibs(vptr); |
| 2322 | spin_unlock_irq(&vptr->lock); |
| 2323 | |
| 2324 | vptr->stats.rx_packets = vptr->mib_counter[HW_MIB_ifRxAllPkts]; |
| 2325 | vptr->stats.rx_errors = vptr->mib_counter[HW_MIB_ifRxErrorPkts]; |
| 2326 | vptr->stats.rx_length_errors = vptr->mib_counter[HW_MIB_ifInRangeLengthErrors]; |
| 2327 | |
| 2328 | // unsigned long rx_dropped; /* no space in linux buffers */ |
| 2329 | vptr->stats.collisions = vptr->mib_counter[HW_MIB_ifTxEtherCollisions]; |
| 2330 | /* detailed rx_errors: */ |
| 2331 | // unsigned long rx_length_errors; |
| 2332 | // unsigned long rx_over_errors; /* receiver ring buff overflow */ |
| 2333 | vptr->stats.rx_crc_errors = vptr->mib_counter[HW_MIB_ifRxPktCRCE]; |
| 2334 | // unsigned long rx_frame_errors; /* recv'd frame alignment error */ |
| 2335 | // unsigned long rx_fifo_errors; /* recv'r fifo overrun */ |
| 2336 | // unsigned long rx_missed_errors; /* receiver missed packet */ |
| 2337 | |
| 2338 | /* detailed tx_errors */ |
| 2339 | // unsigned long tx_fifo_errors; |
| 2340 | |
| 2341 | return &vptr->stats; |
| 2342 | } |
| 2343 | |
| 2344 | |
| 2345 | /** |
| 2346 | * velocity_ioctl - ioctl entry point |
| 2347 | * @dev: network device |
| 2348 | * @rq: interface request ioctl |
| 2349 | * @cmd: command code |
| 2350 | * |
| 2351 | * Called when the user issues an ioctl request to the network |
| 2352 | * device in question. The velocity interface supports MII. |
| 2353 | */ |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2354 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2355 | static int velocity_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) |
| 2356 | { |
Jeff Garzik | 8ab6f3f | 2006-06-27 08:56:23 -0400 | [diff] [blame] | 2357 | struct velocity_info *vptr = netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2358 | int ret; |
| 2359 | |
| 2360 | /* If we are asked for information and the device is power |
| 2361 | saving then we need to bring the device back up to talk to it */ |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2362 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2363 | if (!netif_running(dev)) |
| 2364 | pci_set_power_state(vptr->pdev, PCI_D0); |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2365 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2366 | switch (cmd) { |
| 2367 | case SIOCGMIIPHY: /* Get address of MII PHY in use. */ |
| 2368 | case SIOCGMIIREG: /* Read MII PHY register. */ |
| 2369 | case SIOCSMIIREG: /* Write to MII PHY register. */ |
| 2370 | ret = velocity_mii_ioctl(dev, rq, cmd); |
| 2371 | break; |
| 2372 | |
| 2373 | default: |
| 2374 | ret = -EOPNOTSUPP; |
| 2375 | } |
| 2376 | if (!netif_running(dev)) |
| 2377 | pci_set_power_state(vptr->pdev, PCI_D3hot); |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2378 | |
| 2379 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2380 | return ret; |
| 2381 | } |
| 2382 | |
| 2383 | /* |
| 2384 | * Definition for our device driver. The PCI layer interface |
| 2385 | * uses this to handle all our card discover and plugging |
| 2386 | */ |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2387 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2388 | static struct pci_driver velocity_driver = { |
| 2389 | .name = VELOCITY_NAME, |
| 2390 | .id_table = velocity_id_table, |
| 2391 | .probe = velocity_found1, |
| 2392 | .remove = __devexit_p(velocity_remove1), |
| 2393 | #ifdef CONFIG_PM |
| 2394 | .suspend = velocity_suspend, |
| 2395 | .resume = velocity_resume, |
| 2396 | #endif |
| 2397 | }; |
| 2398 | |
| 2399 | /** |
| 2400 | * velocity_init_module - load time function |
| 2401 | * |
| 2402 | * Called when the velocity module is loaded. The PCI driver |
| 2403 | * is registered with the PCI layer, and in turn will call |
| 2404 | * the probe functions for each velocity adapter installed |
| 2405 | * in the system. |
| 2406 | */ |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2407 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2408 | static int __init velocity_init_module(void) |
| 2409 | { |
| 2410 | int ret; |
| 2411 | |
| 2412 | velocity_register_notifier(); |
Jeff Garzik | 2991762 | 2006-08-19 17:48:59 -0400 | [diff] [blame] | 2413 | ret = pci_register_driver(&velocity_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2414 | if (ret < 0) |
| 2415 | velocity_unregister_notifier(); |
| 2416 | return ret; |
| 2417 | } |
| 2418 | |
| 2419 | /** |
| 2420 | * velocity_cleanup - module unload |
| 2421 | * |
| 2422 | * When the velocity hardware is unloaded this function is called. |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2423 | * It will clean up the notifiers and the unregister the PCI |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2424 | * driver interface for this hardware. This in turn cleans up |
| 2425 | * all discovered interfaces before returning from the function |
| 2426 | */ |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2427 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2428 | static void __exit velocity_cleanup_module(void) |
| 2429 | { |
| 2430 | velocity_unregister_notifier(); |
| 2431 | pci_unregister_driver(&velocity_driver); |
| 2432 | } |
| 2433 | |
| 2434 | module_init(velocity_init_module); |
| 2435 | module_exit(velocity_cleanup_module); |
| 2436 | |
| 2437 | |
| 2438 | /* |
| 2439 | * MII access , media link mode setting functions |
| 2440 | */ |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2441 | |
| 2442 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2443 | /** |
| 2444 | * mii_init - set up MII |
| 2445 | * @vptr: velocity adapter |
| 2446 | * @mii_status: links tatus |
| 2447 | * |
| 2448 | * Set up the PHY for the current link state. |
| 2449 | */ |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2450 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2451 | static void mii_init(struct velocity_info *vptr, u32 mii_status) |
| 2452 | { |
| 2453 | u16 BMCR; |
| 2454 | |
| 2455 | switch (PHYID_GET_PHY_ID(vptr->phy_id)) { |
| 2456 | case PHYID_CICADA_CS8201: |
| 2457 | /* |
| 2458 | * Reset to hardware default |
| 2459 | */ |
| 2460 | MII_REG_BITS_OFF((ANAR_ASMDIR | ANAR_PAUSE), MII_REG_ANAR, vptr->mac_regs); |
| 2461 | /* |
| 2462 | * Turn on ECHODIS bit in NWay-forced full mode and turn it |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2463 | * off it in NWay-forced half mode for NWay-forced v.s. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2464 | * legacy-forced issue. |
| 2465 | */ |
| 2466 | if (vptr->mii_status & VELOCITY_DUPLEX_FULL) |
| 2467 | MII_REG_BITS_ON(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs); |
| 2468 | else |
| 2469 | MII_REG_BITS_OFF(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs); |
| 2470 | /* |
| 2471 | * Turn on Link/Activity LED enable bit for CIS8201 |
| 2472 | */ |
| 2473 | MII_REG_BITS_ON(PLED_LALBE, MII_REG_PLED, vptr->mac_regs); |
| 2474 | break; |
| 2475 | case PHYID_VT3216_32BIT: |
| 2476 | case PHYID_VT3216_64BIT: |
| 2477 | /* |
| 2478 | * Reset to hardware default |
| 2479 | */ |
| 2480 | MII_REG_BITS_ON((ANAR_ASMDIR | ANAR_PAUSE), MII_REG_ANAR, vptr->mac_regs); |
| 2481 | /* |
| 2482 | * Turn on ECHODIS bit in NWay-forced full mode and turn it |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2483 | * off it in NWay-forced half mode for NWay-forced v.s. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2484 | * legacy-forced issue |
| 2485 | */ |
| 2486 | if (vptr->mii_status & VELOCITY_DUPLEX_FULL) |
| 2487 | MII_REG_BITS_ON(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs); |
| 2488 | else |
| 2489 | MII_REG_BITS_OFF(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs); |
| 2490 | break; |
| 2491 | |
| 2492 | case PHYID_MARVELL_1000: |
| 2493 | case PHYID_MARVELL_1000S: |
| 2494 | /* |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2495 | * Assert CRS on Transmit |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2496 | */ |
| 2497 | MII_REG_BITS_ON(PSCR_ACRSTX, MII_REG_PSCR, vptr->mac_regs); |
| 2498 | /* |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2499 | * Reset to hardware default |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2500 | */ |
| 2501 | MII_REG_BITS_ON((ANAR_ASMDIR | ANAR_PAUSE), MII_REG_ANAR, vptr->mac_regs); |
| 2502 | break; |
| 2503 | default: |
| 2504 | ; |
| 2505 | } |
| 2506 | velocity_mii_read(vptr->mac_regs, MII_REG_BMCR, &BMCR); |
| 2507 | if (BMCR & BMCR_ISO) { |
| 2508 | BMCR &= ~BMCR_ISO; |
| 2509 | velocity_mii_write(vptr->mac_regs, MII_REG_BMCR, BMCR); |
| 2510 | } |
| 2511 | } |
| 2512 | |
| 2513 | /** |
| 2514 | * safe_disable_mii_autopoll - autopoll off |
| 2515 | * @regs: velocity registers |
| 2516 | * |
| 2517 | * Turn off the autopoll and wait for it to disable on the chip |
| 2518 | */ |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2519 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2520 | static void safe_disable_mii_autopoll(struct mac_regs __iomem * regs) |
| 2521 | { |
| 2522 | u16 ww; |
| 2523 | |
| 2524 | /* turn off MAUTO */ |
| 2525 | writeb(0, ®s->MIICR); |
| 2526 | for (ww = 0; ww < W_MAX_TIMEOUT; ww++) { |
| 2527 | udelay(1); |
| 2528 | if (BYTE_REG_BITS_IS_ON(MIISR_MIDLE, ®s->MIISR)) |
| 2529 | break; |
| 2530 | } |
| 2531 | } |
| 2532 | |
| 2533 | /** |
| 2534 | * enable_mii_autopoll - turn on autopolling |
| 2535 | * @regs: velocity registers |
| 2536 | * |
| 2537 | * Enable the MII link status autopoll feature on the Velocity |
| 2538 | * hardware. Wait for it to enable. |
| 2539 | */ |
| 2540 | |
| 2541 | static void enable_mii_autopoll(struct mac_regs __iomem * regs) |
| 2542 | { |
| 2543 | int ii; |
| 2544 | |
| 2545 | writeb(0, &(regs->MIICR)); |
| 2546 | writeb(MIIADR_SWMPL, ®s->MIIADR); |
| 2547 | |
| 2548 | for (ii = 0; ii < W_MAX_TIMEOUT; ii++) { |
| 2549 | udelay(1); |
| 2550 | if (BYTE_REG_BITS_IS_ON(MIISR_MIDLE, ®s->MIISR)) |
| 2551 | break; |
| 2552 | } |
| 2553 | |
| 2554 | writeb(MIICR_MAUTO, ®s->MIICR); |
| 2555 | |
| 2556 | for (ii = 0; ii < W_MAX_TIMEOUT; ii++) { |
| 2557 | udelay(1); |
| 2558 | if (!BYTE_REG_BITS_IS_ON(MIISR_MIDLE, ®s->MIISR)) |
| 2559 | break; |
| 2560 | } |
| 2561 | |
| 2562 | } |
| 2563 | |
| 2564 | /** |
| 2565 | * velocity_mii_read - read MII data |
| 2566 | * @regs: velocity registers |
| 2567 | * @index: MII register index |
| 2568 | * @data: buffer for received data |
| 2569 | * |
| 2570 | * Perform a single read of an MII 16bit register. Returns zero |
| 2571 | * on success or -ETIMEDOUT if the PHY did not respond. |
| 2572 | */ |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2573 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2574 | static int velocity_mii_read(struct mac_regs __iomem *regs, u8 index, u16 *data) |
| 2575 | { |
| 2576 | u16 ww; |
| 2577 | |
| 2578 | /* |
| 2579 | * Disable MIICR_MAUTO, so that mii addr can be set normally |
| 2580 | */ |
| 2581 | safe_disable_mii_autopoll(regs); |
| 2582 | |
| 2583 | writeb(index, ®s->MIIADR); |
| 2584 | |
| 2585 | BYTE_REG_BITS_ON(MIICR_RCMD, ®s->MIICR); |
| 2586 | |
| 2587 | for (ww = 0; ww < W_MAX_TIMEOUT; ww++) { |
| 2588 | if (!(readb(®s->MIICR) & MIICR_RCMD)) |
| 2589 | break; |
| 2590 | } |
| 2591 | |
| 2592 | *data = readw(®s->MIIDATA); |
| 2593 | |
| 2594 | enable_mii_autopoll(regs); |
| 2595 | if (ww == W_MAX_TIMEOUT) |
| 2596 | return -ETIMEDOUT; |
| 2597 | return 0; |
| 2598 | } |
| 2599 | |
| 2600 | /** |
| 2601 | * velocity_mii_write - write MII data |
| 2602 | * @regs: velocity registers |
| 2603 | * @index: MII register index |
| 2604 | * @data: 16bit data for the MII register |
| 2605 | * |
| 2606 | * Perform a single write to an MII 16bit register. Returns zero |
| 2607 | * on success or -ETIMEDOUT if the PHY did not respond. |
| 2608 | */ |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2609 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2610 | static int velocity_mii_write(struct mac_regs __iomem *regs, u8 mii_addr, u16 data) |
| 2611 | { |
| 2612 | u16 ww; |
| 2613 | |
| 2614 | /* |
| 2615 | * Disable MIICR_MAUTO, so that mii addr can be set normally |
| 2616 | */ |
| 2617 | safe_disable_mii_autopoll(regs); |
| 2618 | |
| 2619 | /* MII reg offset */ |
| 2620 | writeb(mii_addr, ®s->MIIADR); |
| 2621 | /* set MII data */ |
| 2622 | writew(data, ®s->MIIDATA); |
| 2623 | |
| 2624 | /* turn on MIICR_WCMD */ |
| 2625 | BYTE_REG_BITS_ON(MIICR_WCMD, ®s->MIICR); |
| 2626 | |
| 2627 | /* W_MAX_TIMEOUT is the timeout period */ |
| 2628 | for (ww = 0; ww < W_MAX_TIMEOUT; ww++) { |
| 2629 | udelay(5); |
| 2630 | if (!(readb(®s->MIICR) & MIICR_WCMD)) |
| 2631 | break; |
| 2632 | } |
| 2633 | enable_mii_autopoll(regs); |
| 2634 | |
| 2635 | if (ww == W_MAX_TIMEOUT) |
| 2636 | return -ETIMEDOUT; |
| 2637 | return 0; |
| 2638 | } |
| 2639 | |
| 2640 | /** |
| 2641 | * velocity_get_opt_media_mode - get media selection |
| 2642 | * @vptr: velocity adapter |
| 2643 | * |
| 2644 | * Get the media mode stored in EEPROM or module options and load |
| 2645 | * mii_status accordingly. The requested link state information |
| 2646 | * is also returned. |
| 2647 | */ |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2648 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2649 | static u32 velocity_get_opt_media_mode(struct velocity_info *vptr) |
| 2650 | { |
| 2651 | u32 status = 0; |
| 2652 | |
| 2653 | switch (vptr->options.spd_dpx) { |
| 2654 | case SPD_DPX_AUTO: |
| 2655 | status = VELOCITY_AUTONEG_ENABLE; |
| 2656 | break; |
| 2657 | case SPD_DPX_100_FULL: |
| 2658 | status = VELOCITY_SPEED_100 | VELOCITY_DUPLEX_FULL; |
| 2659 | break; |
| 2660 | case SPD_DPX_10_FULL: |
| 2661 | status = VELOCITY_SPEED_10 | VELOCITY_DUPLEX_FULL; |
| 2662 | break; |
| 2663 | case SPD_DPX_100_HALF: |
| 2664 | status = VELOCITY_SPEED_100; |
| 2665 | break; |
| 2666 | case SPD_DPX_10_HALF: |
| 2667 | status = VELOCITY_SPEED_10; |
| 2668 | break; |
| 2669 | } |
| 2670 | vptr->mii_status = status; |
| 2671 | return status; |
| 2672 | } |
| 2673 | |
| 2674 | /** |
| 2675 | * mii_set_auto_on - autonegotiate on |
| 2676 | * @vptr: velocity |
| 2677 | * |
| 2678 | * Enable autonegotation on this interface |
| 2679 | */ |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2680 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2681 | static void mii_set_auto_on(struct velocity_info *vptr) |
| 2682 | { |
| 2683 | if (MII_REG_BITS_IS_ON(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs)) |
| 2684 | MII_REG_BITS_ON(BMCR_REAUTO, MII_REG_BMCR, vptr->mac_regs); |
| 2685 | else |
| 2686 | MII_REG_BITS_ON(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs); |
| 2687 | } |
| 2688 | |
| 2689 | |
| 2690 | /* |
| 2691 | static void mii_set_auto_off(struct velocity_info * vptr) |
| 2692 | { |
| 2693 | MII_REG_BITS_OFF(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs); |
| 2694 | } |
| 2695 | */ |
| 2696 | |
| 2697 | /** |
| 2698 | * set_mii_flow_control - flow control setup |
| 2699 | * @vptr: velocity interface |
| 2700 | * |
| 2701 | * Set up the flow control on this interface according to |
| 2702 | * the supplied user/eeprom options. |
| 2703 | */ |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2704 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2705 | static void set_mii_flow_control(struct velocity_info *vptr) |
| 2706 | { |
| 2707 | /*Enable or Disable PAUSE in ANAR */ |
| 2708 | switch (vptr->options.flow_cntl) { |
| 2709 | case FLOW_CNTL_TX: |
| 2710 | MII_REG_BITS_OFF(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs); |
| 2711 | MII_REG_BITS_ON(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs); |
| 2712 | break; |
| 2713 | |
| 2714 | case FLOW_CNTL_RX: |
| 2715 | MII_REG_BITS_ON(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs); |
| 2716 | MII_REG_BITS_ON(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs); |
| 2717 | break; |
| 2718 | |
| 2719 | case FLOW_CNTL_TX_RX: |
| 2720 | MII_REG_BITS_ON(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs); |
| 2721 | MII_REG_BITS_ON(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs); |
| 2722 | break; |
| 2723 | |
| 2724 | case FLOW_CNTL_DISABLE: |
| 2725 | MII_REG_BITS_OFF(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs); |
| 2726 | MII_REG_BITS_OFF(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs); |
| 2727 | break; |
| 2728 | default: |
| 2729 | break; |
| 2730 | } |
| 2731 | } |
| 2732 | |
| 2733 | /** |
| 2734 | * velocity_set_media_mode - set media mode |
| 2735 | * @mii_status: old MII link state |
| 2736 | * |
| 2737 | * Check the media link state and configure the flow control |
| 2738 | * PHY and also velocity hardware setup accordingly. In particular |
| 2739 | * we need to set up CD polling and frame bursting. |
| 2740 | */ |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2741 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2742 | static int velocity_set_media_mode(struct velocity_info *vptr, u32 mii_status) |
| 2743 | { |
| 2744 | u32 curr_status; |
| 2745 | struct mac_regs __iomem * regs = vptr->mac_regs; |
| 2746 | |
| 2747 | vptr->mii_status = mii_check_media_mode(vptr->mac_regs); |
| 2748 | curr_status = vptr->mii_status & (~VELOCITY_LINK_FAIL); |
| 2749 | |
| 2750 | /* Set mii link status */ |
| 2751 | set_mii_flow_control(vptr); |
| 2752 | |
| 2753 | /* |
| 2754 | Check if new status is consisent with current status |
| 2755 | if (((mii_status & curr_status) & VELOCITY_AUTONEG_ENABLE) |
| 2756 | || (mii_status==curr_status)) { |
| 2757 | vptr->mii_status=mii_check_media_mode(vptr->mac_regs); |
| 2758 | vptr->mii_status=check_connection_type(vptr->mac_regs); |
| 2759 | VELOCITY_PRT(MSG_LEVEL_INFO, "Velocity link no change\n"); |
| 2760 | return 0; |
| 2761 | } |
| 2762 | */ |
| 2763 | |
| 2764 | if (PHYID_GET_PHY_ID(vptr->phy_id) == PHYID_CICADA_CS8201) { |
| 2765 | MII_REG_BITS_ON(AUXCR_MDPPS, MII_REG_AUXCR, vptr->mac_regs); |
| 2766 | } |
| 2767 | |
| 2768 | /* |
| 2769 | * If connection type is AUTO |
| 2770 | */ |
| 2771 | if (mii_status & VELOCITY_AUTONEG_ENABLE) { |
| 2772 | VELOCITY_PRT(MSG_LEVEL_INFO, "Velocity is AUTO mode\n"); |
| 2773 | /* clear force MAC mode bit */ |
| 2774 | BYTE_REG_BITS_OFF(CHIPGCR_FCMODE, ®s->CHIPGCR); |
| 2775 | /* set duplex mode of MAC according to duplex mode of MII */ |
| 2776 | MII_REG_BITS_ON(ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10, MII_REG_ANAR, vptr->mac_regs); |
| 2777 | MII_REG_BITS_ON(G1000CR_1000FD | G1000CR_1000, MII_REG_G1000CR, vptr->mac_regs); |
| 2778 | MII_REG_BITS_ON(BMCR_SPEED1G, MII_REG_BMCR, vptr->mac_regs); |
| 2779 | |
| 2780 | /* enable AUTO-NEGO mode */ |
| 2781 | mii_set_auto_on(vptr); |
| 2782 | } else { |
| 2783 | u16 ANAR; |
| 2784 | u8 CHIPGCR; |
| 2785 | |
| 2786 | /* |
| 2787 | * 1. if it's 3119, disable frame bursting in halfduplex mode |
| 2788 | * and enable it in fullduplex mode |
| 2789 | * 2. set correct MII/GMII and half/full duplex mode in CHIPGCR |
| 2790 | * 3. only enable CD heart beat counter in 10HD mode |
| 2791 | */ |
| 2792 | |
| 2793 | /* set force MAC mode bit */ |
| 2794 | BYTE_REG_BITS_ON(CHIPGCR_FCMODE, ®s->CHIPGCR); |
| 2795 | |
| 2796 | CHIPGCR = readb(®s->CHIPGCR); |
| 2797 | CHIPGCR &= ~CHIPGCR_FCGMII; |
| 2798 | |
| 2799 | if (mii_status & VELOCITY_DUPLEX_FULL) { |
| 2800 | CHIPGCR |= CHIPGCR_FCFDX; |
| 2801 | writeb(CHIPGCR, ®s->CHIPGCR); |
| 2802 | VELOCITY_PRT(MSG_LEVEL_INFO, "set Velocity to forced full mode\n"); |
| 2803 | if (vptr->rev_id < REV_ID_VT3216_A0) |
| 2804 | BYTE_REG_BITS_OFF(TCR_TB2BDIS, ®s->TCR); |
| 2805 | } else { |
| 2806 | CHIPGCR &= ~CHIPGCR_FCFDX; |
| 2807 | VELOCITY_PRT(MSG_LEVEL_INFO, "set Velocity to forced half mode\n"); |
| 2808 | writeb(CHIPGCR, ®s->CHIPGCR); |
| 2809 | if (vptr->rev_id < REV_ID_VT3216_A0) |
| 2810 | BYTE_REG_BITS_ON(TCR_TB2BDIS, ®s->TCR); |
| 2811 | } |
| 2812 | |
| 2813 | MII_REG_BITS_OFF(G1000CR_1000FD | G1000CR_1000, MII_REG_G1000CR, vptr->mac_regs); |
| 2814 | |
| 2815 | if (!(mii_status & VELOCITY_DUPLEX_FULL) && (mii_status & VELOCITY_SPEED_10)) { |
| 2816 | BYTE_REG_BITS_OFF(TESTCFG_HBDIS, ®s->TESTCFG); |
| 2817 | } else { |
| 2818 | BYTE_REG_BITS_ON(TESTCFG_HBDIS, ®s->TESTCFG); |
| 2819 | } |
| 2820 | /* MII_REG_BITS_OFF(BMCR_SPEED1G, MII_REG_BMCR, vptr->mac_regs); */ |
| 2821 | velocity_mii_read(vptr->mac_regs, MII_REG_ANAR, &ANAR); |
| 2822 | ANAR &= (~(ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10)); |
| 2823 | if (mii_status & VELOCITY_SPEED_100) { |
| 2824 | if (mii_status & VELOCITY_DUPLEX_FULL) |
| 2825 | ANAR |= ANAR_TXFD; |
| 2826 | else |
| 2827 | ANAR |= ANAR_TX; |
| 2828 | } else { |
| 2829 | if (mii_status & VELOCITY_DUPLEX_FULL) |
| 2830 | ANAR |= ANAR_10FD; |
| 2831 | else |
| 2832 | ANAR |= ANAR_10; |
| 2833 | } |
| 2834 | velocity_mii_write(vptr->mac_regs, MII_REG_ANAR, ANAR); |
| 2835 | /* enable AUTO-NEGO mode */ |
| 2836 | mii_set_auto_on(vptr); |
| 2837 | /* MII_REG_BITS_ON(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs); */ |
| 2838 | } |
| 2839 | /* vptr->mii_status=mii_check_media_mode(vptr->mac_regs); */ |
| 2840 | /* vptr->mii_status=check_connection_type(vptr->mac_regs); */ |
| 2841 | return VELOCITY_LINK_CHANGE; |
| 2842 | } |
| 2843 | |
| 2844 | /** |
| 2845 | * mii_check_media_mode - check media state |
| 2846 | * @regs: velocity registers |
| 2847 | * |
| 2848 | * Check the current MII status and determine the link status |
| 2849 | * accordingly |
| 2850 | */ |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2851 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2852 | static u32 mii_check_media_mode(struct mac_regs __iomem * regs) |
| 2853 | { |
| 2854 | u32 status = 0; |
| 2855 | u16 ANAR; |
| 2856 | |
| 2857 | if (!MII_REG_BITS_IS_ON(BMSR_LNK, MII_REG_BMSR, regs)) |
| 2858 | status |= VELOCITY_LINK_FAIL; |
| 2859 | |
| 2860 | if (MII_REG_BITS_IS_ON(G1000CR_1000FD, MII_REG_G1000CR, regs)) |
| 2861 | status |= VELOCITY_SPEED_1000 | VELOCITY_DUPLEX_FULL; |
| 2862 | else if (MII_REG_BITS_IS_ON(G1000CR_1000, MII_REG_G1000CR, regs)) |
| 2863 | status |= (VELOCITY_SPEED_1000); |
| 2864 | else { |
| 2865 | velocity_mii_read(regs, MII_REG_ANAR, &ANAR); |
| 2866 | if (ANAR & ANAR_TXFD) |
| 2867 | status |= (VELOCITY_SPEED_100 | VELOCITY_DUPLEX_FULL); |
| 2868 | else if (ANAR & ANAR_TX) |
| 2869 | status |= VELOCITY_SPEED_100; |
| 2870 | else if (ANAR & ANAR_10FD) |
| 2871 | status |= (VELOCITY_SPEED_10 | VELOCITY_DUPLEX_FULL); |
| 2872 | else |
| 2873 | status |= (VELOCITY_SPEED_10); |
| 2874 | } |
| 2875 | |
| 2876 | if (MII_REG_BITS_IS_ON(BMCR_AUTO, MII_REG_BMCR, regs)) { |
| 2877 | velocity_mii_read(regs, MII_REG_ANAR, &ANAR); |
| 2878 | if ((ANAR & (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10)) |
| 2879 | == (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10)) { |
| 2880 | if (MII_REG_BITS_IS_ON(G1000CR_1000 | G1000CR_1000FD, MII_REG_G1000CR, regs)) |
| 2881 | status |= VELOCITY_AUTONEG_ENABLE; |
| 2882 | } |
| 2883 | } |
| 2884 | |
| 2885 | return status; |
| 2886 | } |
| 2887 | |
| 2888 | static u32 check_connection_type(struct mac_regs __iomem * regs) |
| 2889 | { |
| 2890 | u32 status = 0; |
| 2891 | u8 PHYSR0; |
| 2892 | u16 ANAR; |
| 2893 | PHYSR0 = readb(®s->PHYSR0); |
| 2894 | |
| 2895 | /* |
| 2896 | if (!(PHYSR0 & PHYSR0_LINKGD)) |
| 2897 | status|=VELOCITY_LINK_FAIL; |
| 2898 | */ |
| 2899 | |
| 2900 | if (PHYSR0 & PHYSR0_FDPX) |
| 2901 | status |= VELOCITY_DUPLEX_FULL; |
| 2902 | |
| 2903 | if (PHYSR0 & PHYSR0_SPDG) |
| 2904 | status |= VELOCITY_SPEED_1000; |
Jay Cliburn | 59b693f | 2006-07-20 23:23:57 +0200 | [diff] [blame] | 2905 | else if (PHYSR0 & PHYSR0_SPD10) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2906 | status |= VELOCITY_SPEED_10; |
| 2907 | else |
| 2908 | status |= VELOCITY_SPEED_100; |
| 2909 | |
| 2910 | if (MII_REG_BITS_IS_ON(BMCR_AUTO, MII_REG_BMCR, regs)) { |
| 2911 | velocity_mii_read(regs, MII_REG_ANAR, &ANAR); |
| 2912 | if ((ANAR & (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10)) |
| 2913 | == (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10)) { |
| 2914 | if (MII_REG_BITS_IS_ON(G1000CR_1000 | G1000CR_1000FD, MII_REG_G1000CR, regs)) |
| 2915 | status |= VELOCITY_AUTONEG_ENABLE; |
| 2916 | } |
| 2917 | } |
| 2918 | |
| 2919 | return status; |
| 2920 | } |
| 2921 | |
| 2922 | /** |
| 2923 | * enable_flow_control_ability - flow control |
| 2924 | * @vptr: veloity to configure |
| 2925 | * |
| 2926 | * Set up flow control according to the flow control options |
| 2927 | * determined by the eeprom/configuration. |
| 2928 | */ |
| 2929 | |
| 2930 | static void enable_flow_control_ability(struct velocity_info *vptr) |
| 2931 | { |
| 2932 | |
| 2933 | struct mac_regs __iomem * regs = vptr->mac_regs; |
| 2934 | |
| 2935 | switch (vptr->options.flow_cntl) { |
| 2936 | |
| 2937 | case FLOW_CNTL_DEFAULT: |
| 2938 | if (BYTE_REG_BITS_IS_ON(PHYSR0_RXFLC, ®s->PHYSR0)) |
| 2939 | writel(CR0_FDXRFCEN, ®s->CR0Set); |
| 2940 | else |
| 2941 | writel(CR0_FDXRFCEN, ®s->CR0Clr); |
| 2942 | |
| 2943 | if (BYTE_REG_BITS_IS_ON(PHYSR0_TXFLC, ®s->PHYSR0)) |
| 2944 | writel(CR0_FDXTFCEN, ®s->CR0Set); |
| 2945 | else |
| 2946 | writel(CR0_FDXTFCEN, ®s->CR0Clr); |
| 2947 | break; |
| 2948 | |
| 2949 | case FLOW_CNTL_TX: |
| 2950 | writel(CR0_FDXTFCEN, ®s->CR0Set); |
| 2951 | writel(CR0_FDXRFCEN, ®s->CR0Clr); |
| 2952 | break; |
| 2953 | |
| 2954 | case FLOW_CNTL_RX: |
| 2955 | writel(CR0_FDXRFCEN, ®s->CR0Set); |
| 2956 | writel(CR0_FDXTFCEN, ®s->CR0Clr); |
| 2957 | break; |
| 2958 | |
| 2959 | case FLOW_CNTL_TX_RX: |
| 2960 | writel(CR0_FDXTFCEN, ®s->CR0Set); |
| 2961 | writel(CR0_FDXRFCEN, ®s->CR0Set); |
| 2962 | break; |
| 2963 | |
| 2964 | case FLOW_CNTL_DISABLE: |
| 2965 | writel(CR0_FDXRFCEN, ®s->CR0Clr); |
| 2966 | writel(CR0_FDXTFCEN, ®s->CR0Clr); |
| 2967 | break; |
| 2968 | |
| 2969 | default: |
| 2970 | break; |
| 2971 | } |
| 2972 | |
| 2973 | } |
| 2974 | |
| 2975 | |
| 2976 | /** |
| 2977 | * velocity_ethtool_up - pre hook for ethtool |
| 2978 | * @dev: network device |
| 2979 | * |
| 2980 | * Called before an ethtool operation. We need to make sure the |
| 2981 | * chip is out of D3 state before we poke at it. |
| 2982 | */ |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2983 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2984 | static int velocity_ethtool_up(struct net_device *dev) |
| 2985 | { |
Jeff Garzik | 8ab6f3f | 2006-06-27 08:56:23 -0400 | [diff] [blame] | 2986 | struct velocity_info *vptr = netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2987 | if (!netif_running(dev)) |
| 2988 | pci_set_power_state(vptr->pdev, PCI_D0); |
| 2989 | return 0; |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2990 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2991 | |
| 2992 | /** |
| 2993 | * velocity_ethtool_down - post hook for ethtool |
| 2994 | * @dev: network device |
| 2995 | * |
| 2996 | * Called after an ethtool operation. Restore the chip back to D3 |
| 2997 | * state if it isn't running. |
| 2998 | */ |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2999 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3000 | static void velocity_ethtool_down(struct net_device *dev) |
| 3001 | { |
Jeff Garzik | 8ab6f3f | 2006-06-27 08:56:23 -0400 | [diff] [blame] | 3002 | struct velocity_info *vptr = netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3003 | if (!netif_running(dev)) |
| 3004 | pci_set_power_state(vptr->pdev, PCI_D3hot); |
| 3005 | } |
| 3006 | |
| 3007 | static int velocity_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
| 3008 | { |
Jeff Garzik | 8ab6f3f | 2006-06-27 08:56:23 -0400 | [diff] [blame] | 3009 | struct velocity_info *vptr = netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3010 | struct mac_regs __iomem * regs = vptr->mac_regs; |
| 3011 | u32 status; |
| 3012 | status = check_connection_type(vptr->mac_regs); |
| 3013 | |
Jay Cliburn | 59b693f | 2006-07-20 23:23:57 +0200 | [diff] [blame] | 3014 | cmd->supported = SUPPORTED_TP | |
| 3015 | SUPPORTED_Autoneg | |
| 3016 | SUPPORTED_10baseT_Half | |
| 3017 | SUPPORTED_10baseT_Full | |
| 3018 | SUPPORTED_100baseT_Half | |
| 3019 | SUPPORTED_100baseT_Full | |
| 3020 | SUPPORTED_1000baseT_Half | |
| 3021 | SUPPORTED_1000baseT_Full; |
| 3022 | if (status & VELOCITY_SPEED_1000) |
| 3023 | cmd->speed = SPEED_1000; |
| 3024 | else if (status & VELOCITY_SPEED_100) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3025 | cmd->speed = SPEED_100; |
| 3026 | else |
| 3027 | cmd->speed = SPEED_10; |
| 3028 | cmd->autoneg = (status & VELOCITY_AUTONEG_ENABLE) ? AUTONEG_ENABLE : AUTONEG_DISABLE; |
| 3029 | cmd->port = PORT_TP; |
| 3030 | cmd->transceiver = XCVR_INTERNAL; |
| 3031 | cmd->phy_address = readb(®s->MIIADR) & 0x1F; |
| 3032 | |
| 3033 | if (status & VELOCITY_DUPLEX_FULL) |
| 3034 | cmd->duplex = DUPLEX_FULL; |
| 3035 | else |
| 3036 | cmd->duplex = DUPLEX_HALF; |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 3037 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3038 | return 0; |
| 3039 | } |
| 3040 | |
| 3041 | static int velocity_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
| 3042 | { |
Jeff Garzik | 8ab6f3f | 2006-06-27 08:56:23 -0400 | [diff] [blame] | 3043 | struct velocity_info *vptr = netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3044 | u32 curr_status; |
| 3045 | u32 new_status = 0; |
| 3046 | int ret = 0; |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 3047 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3048 | curr_status = check_connection_type(vptr->mac_regs); |
| 3049 | curr_status &= (~VELOCITY_LINK_FAIL); |
| 3050 | |
| 3051 | new_status |= ((cmd->autoneg) ? VELOCITY_AUTONEG_ENABLE : 0); |
| 3052 | new_status |= ((cmd->speed == SPEED_100) ? VELOCITY_SPEED_100 : 0); |
| 3053 | new_status |= ((cmd->speed == SPEED_10) ? VELOCITY_SPEED_10 : 0); |
| 3054 | new_status |= ((cmd->duplex == DUPLEX_FULL) ? VELOCITY_DUPLEX_FULL : 0); |
| 3055 | |
| 3056 | if ((new_status & VELOCITY_AUTONEG_ENABLE) && (new_status != (curr_status | VELOCITY_AUTONEG_ENABLE))) |
| 3057 | ret = -EINVAL; |
| 3058 | else |
| 3059 | velocity_set_media_mode(vptr, new_status); |
| 3060 | |
| 3061 | return ret; |
| 3062 | } |
| 3063 | |
| 3064 | static u32 velocity_get_link(struct net_device *dev) |
| 3065 | { |
Jeff Garzik | 8ab6f3f | 2006-06-27 08:56:23 -0400 | [diff] [blame] | 3066 | struct velocity_info *vptr = netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3067 | struct mac_regs __iomem * regs = vptr->mac_regs; |
Jay Cliburn | 59b693f | 2006-07-20 23:23:57 +0200 | [diff] [blame] | 3068 | return BYTE_REG_BITS_IS_ON(PHYSR0_LINKGD, ®s->PHYSR0) ? 1 : 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3069 | } |
| 3070 | |
| 3071 | static void velocity_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) |
| 3072 | { |
Jeff Garzik | 8ab6f3f | 2006-06-27 08:56:23 -0400 | [diff] [blame] | 3073 | struct velocity_info *vptr = netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3074 | strcpy(info->driver, VELOCITY_NAME); |
| 3075 | strcpy(info->version, VELOCITY_VERSION); |
| 3076 | strcpy(info->bus_info, pci_name(vptr->pdev)); |
| 3077 | } |
| 3078 | |
| 3079 | static void velocity_ethtool_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) |
| 3080 | { |
Jeff Garzik | 8ab6f3f | 2006-06-27 08:56:23 -0400 | [diff] [blame] | 3081 | struct velocity_info *vptr = netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3082 | wol->supported = WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_ARP; |
| 3083 | wol->wolopts |= WAKE_MAGIC; |
| 3084 | /* |
| 3085 | if (vptr->wol_opts & VELOCITY_WOL_PHY) |
| 3086 | wol.wolopts|=WAKE_PHY; |
| 3087 | */ |
| 3088 | if (vptr->wol_opts & VELOCITY_WOL_UCAST) |
| 3089 | wol->wolopts |= WAKE_UCAST; |
| 3090 | if (vptr->wol_opts & VELOCITY_WOL_ARP) |
| 3091 | wol->wolopts |= WAKE_ARP; |
| 3092 | memcpy(&wol->sopass, vptr->wol_passwd, 6); |
| 3093 | } |
| 3094 | |
| 3095 | static int velocity_ethtool_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) |
| 3096 | { |
Jeff Garzik | 8ab6f3f | 2006-06-27 08:56:23 -0400 | [diff] [blame] | 3097 | struct velocity_info *vptr = netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3098 | |
| 3099 | if (!(wol->wolopts & (WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_ARP))) |
| 3100 | return -EFAULT; |
| 3101 | vptr->wol_opts = VELOCITY_WOL_MAGIC; |
| 3102 | |
| 3103 | /* |
| 3104 | if (wol.wolopts & WAKE_PHY) { |
| 3105 | vptr->wol_opts|=VELOCITY_WOL_PHY; |
| 3106 | vptr->flags |=VELOCITY_FLAGS_WOL_ENABLED; |
| 3107 | } |
| 3108 | */ |
| 3109 | |
| 3110 | if (wol->wolopts & WAKE_MAGIC) { |
| 3111 | vptr->wol_opts |= VELOCITY_WOL_MAGIC; |
| 3112 | vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED; |
| 3113 | } |
| 3114 | if (wol->wolopts & WAKE_UCAST) { |
| 3115 | vptr->wol_opts |= VELOCITY_WOL_UCAST; |
| 3116 | vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED; |
| 3117 | } |
| 3118 | if (wol->wolopts & WAKE_ARP) { |
| 3119 | vptr->wol_opts |= VELOCITY_WOL_ARP; |
| 3120 | vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED; |
| 3121 | } |
| 3122 | memcpy(vptr->wol_passwd, wol->sopass, 6); |
| 3123 | return 0; |
| 3124 | } |
| 3125 | |
| 3126 | static u32 velocity_get_msglevel(struct net_device *dev) |
| 3127 | { |
| 3128 | return msglevel; |
| 3129 | } |
| 3130 | |
| 3131 | static void velocity_set_msglevel(struct net_device *dev, u32 value) |
| 3132 | { |
| 3133 | msglevel = value; |
| 3134 | } |
| 3135 | |
Jeff Garzik | 7282d49 | 2006-09-13 14:30:00 -0400 | [diff] [blame] | 3136 | static const struct ethtool_ops velocity_ethtool_ops = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3137 | .get_settings = velocity_get_settings, |
| 3138 | .set_settings = velocity_set_settings, |
| 3139 | .get_drvinfo = velocity_get_drvinfo, |
| 3140 | .get_wol = velocity_ethtool_get_wol, |
| 3141 | .set_wol = velocity_ethtool_set_wol, |
| 3142 | .get_msglevel = velocity_get_msglevel, |
| 3143 | .set_msglevel = velocity_set_msglevel, |
| 3144 | .get_link = velocity_get_link, |
| 3145 | .begin = velocity_ethtool_up, |
| 3146 | .complete = velocity_ethtool_down |
| 3147 | }; |
| 3148 | |
| 3149 | /** |
| 3150 | * velocity_mii_ioctl - MII ioctl handler |
| 3151 | * @dev: network device |
| 3152 | * @ifr: the ifreq block for the ioctl |
| 3153 | * @cmd: the command |
| 3154 | * |
| 3155 | * Process MII requests made via ioctl from the network layer. These |
| 3156 | * are used by tools like kudzu to interrogate the link state of the |
| 3157 | * hardware |
| 3158 | */ |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 3159 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3160 | static int velocity_mii_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) |
| 3161 | { |
Jeff Garzik | 8ab6f3f | 2006-06-27 08:56:23 -0400 | [diff] [blame] | 3162 | struct velocity_info *vptr = netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3163 | struct mac_regs __iomem * regs = vptr->mac_regs; |
| 3164 | unsigned long flags; |
| 3165 | struct mii_ioctl_data *miidata = if_mii(ifr); |
| 3166 | int err; |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 3167 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3168 | switch (cmd) { |
| 3169 | case SIOCGMIIPHY: |
| 3170 | miidata->phy_id = readb(®s->MIIADR) & 0x1f; |
| 3171 | break; |
| 3172 | case SIOCGMIIREG: |
| 3173 | if (!capable(CAP_NET_ADMIN)) |
| 3174 | return -EPERM; |
| 3175 | if(velocity_mii_read(vptr->mac_regs, miidata->reg_num & 0x1f, &(miidata->val_out)) < 0) |
| 3176 | return -ETIMEDOUT; |
| 3177 | break; |
| 3178 | case SIOCSMIIREG: |
| 3179 | if (!capable(CAP_NET_ADMIN)) |
| 3180 | return -EPERM; |
| 3181 | spin_lock_irqsave(&vptr->lock, flags); |
| 3182 | err = velocity_mii_write(vptr->mac_regs, miidata->reg_num & 0x1f, miidata->val_in); |
| 3183 | spin_unlock_irqrestore(&vptr->lock, flags); |
| 3184 | check_connection_type(vptr->mac_regs); |
| 3185 | if(err) |
| 3186 | return err; |
| 3187 | break; |
| 3188 | default: |
| 3189 | return -EOPNOTSUPP; |
| 3190 | } |
| 3191 | return 0; |
| 3192 | } |
| 3193 | |
| 3194 | #ifdef CONFIG_PM |
| 3195 | |
| 3196 | /** |
| 3197 | * velocity_save_context - save registers |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 3198 | * @vptr: velocity |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3199 | * @context: buffer for stored context |
| 3200 | * |
| 3201 | * Retrieve the current configuration from the velocity hardware |
| 3202 | * and stash it in the context structure, for use by the context |
| 3203 | * restore functions. This allows us to save things we need across |
| 3204 | * power down states |
| 3205 | */ |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 3206 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3207 | static void velocity_save_context(struct velocity_info *vptr, struct velocity_context * context) |
| 3208 | { |
| 3209 | struct mac_regs __iomem * regs = vptr->mac_regs; |
| 3210 | u16 i; |
| 3211 | u8 __iomem *ptr = (u8 __iomem *)regs; |
| 3212 | |
| 3213 | for (i = MAC_REG_PAR; i < MAC_REG_CR0_CLR; i += 4) |
| 3214 | *((u32 *) (context->mac_reg + i)) = readl(ptr + i); |
| 3215 | |
| 3216 | for (i = MAC_REG_MAR; i < MAC_REG_TDCSR_CLR; i += 4) |
| 3217 | *((u32 *) (context->mac_reg + i)) = readl(ptr + i); |
| 3218 | |
| 3219 | for (i = MAC_REG_RDBASE_LO; i < MAC_REG_FIFO_TEST0; i += 4) |
| 3220 | *((u32 *) (context->mac_reg + i)) = readl(ptr + i); |
| 3221 | |
| 3222 | } |
| 3223 | |
| 3224 | /** |
| 3225 | * velocity_restore_context - restore registers |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 3226 | * @vptr: velocity |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3227 | * @context: buffer for stored context |
| 3228 | * |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 3229 | * Reload the register configuration from the velocity context |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3230 | * created by velocity_save_context. |
| 3231 | */ |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 3232 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3233 | static void velocity_restore_context(struct velocity_info *vptr, struct velocity_context *context) |
| 3234 | { |
| 3235 | struct mac_regs __iomem * regs = vptr->mac_regs; |
| 3236 | int i; |
| 3237 | u8 __iomem *ptr = (u8 __iomem *)regs; |
| 3238 | |
| 3239 | for (i = MAC_REG_PAR; i < MAC_REG_CR0_SET; i += 4) { |
| 3240 | writel(*((u32 *) (context->mac_reg + i)), ptr + i); |
| 3241 | } |
| 3242 | |
| 3243 | /* Just skip cr0 */ |
| 3244 | for (i = MAC_REG_CR1_SET; i < MAC_REG_CR0_CLR; i++) { |
| 3245 | /* Clear */ |
| 3246 | writeb(~(*((u8 *) (context->mac_reg + i))), ptr + i + 4); |
| 3247 | /* Set */ |
| 3248 | writeb(*((u8 *) (context->mac_reg + i)), ptr + i); |
| 3249 | } |
| 3250 | |
| 3251 | for (i = MAC_REG_MAR; i < MAC_REG_IMR; i += 4) { |
| 3252 | writel(*((u32 *) (context->mac_reg + i)), ptr + i); |
| 3253 | } |
| 3254 | |
| 3255 | for (i = MAC_REG_RDBASE_LO; i < MAC_REG_FIFO_TEST0; i += 4) { |
| 3256 | writel(*((u32 *) (context->mac_reg + i)), ptr + i); |
| 3257 | } |
| 3258 | |
| 3259 | for (i = MAC_REG_TDCSR_SET; i <= MAC_REG_RDCSR_SET; i++) { |
| 3260 | writeb(*((u8 *) (context->mac_reg + i)), ptr + i); |
| 3261 | } |
| 3262 | |
| 3263 | } |
| 3264 | |
| 3265 | /** |
| 3266 | * wol_calc_crc - WOL CRC |
| 3267 | * @pattern: data pattern |
| 3268 | * @mask_pattern: mask |
| 3269 | * |
| 3270 | * Compute the wake on lan crc hashes for the packet header |
| 3271 | * we are interested in. |
| 3272 | */ |
| 3273 | |
| 3274 | static u16 wol_calc_crc(int size, u8 * pattern, u8 *mask_pattern) |
| 3275 | { |
| 3276 | u16 crc = 0xFFFF; |
| 3277 | u8 mask; |
| 3278 | int i, j; |
| 3279 | |
| 3280 | for (i = 0; i < size; i++) { |
| 3281 | mask = mask_pattern[i]; |
| 3282 | |
| 3283 | /* Skip this loop if the mask equals to zero */ |
| 3284 | if (mask == 0x00) |
| 3285 | continue; |
| 3286 | |
| 3287 | for (j = 0; j < 8; j++) { |
| 3288 | if ((mask & 0x01) == 0) { |
| 3289 | mask >>= 1; |
| 3290 | continue; |
| 3291 | } |
| 3292 | mask >>= 1; |
| 3293 | crc = crc_ccitt(crc, &(pattern[i * 8 + j]), 1); |
| 3294 | } |
| 3295 | } |
| 3296 | /* Finally, invert the result once to get the correct data */ |
| 3297 | crc = ~crc; |
Akinobu Mita | 906d66d | 2006-12-08 02:36:25 -0800 | [diff] [blame] | 3298 | return bitrev32(crc) >> 16; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3299 | } |
| 3300 | |
| 3301 | /** |
| 3302 | * velocity_set_wol - set up for wake on lan |
| 3303 | * @vptr: velocity to set WOL status on |
| 3304 | * |
| 3305 | * Set a card up for wake on lan either by unicast or by |
| 3306 | * ARP packet. |
| 3307 | * |
| 3308 | * FIXME: check static buffer is safe here |
| 3309 | */ |
| 3310 | |
| 3311 | static int velocity_set_wol(struct velocity_info *vptr) |
| 3312 | { |
| 3313 | struct mac_regs __iomem * regs = vptr->mac_regs; |
| 3314 | static u8 buf[256]; |
| 3315 | int i; |
| 3316 | |
| 3317 | static u32 mask_pattern[2][4] = { |
| 3318 | {0x00203000, 0x000003C0, 0x00000000, 0x0000000}, /* ARP */ |
| 3319 | {0xfffff000, 0xffffffff, 0xffffffff, 0x000ffff} /* Magic Packet */ |
| 3320 | }; |
| 3321 | |
| 3322 | writew(0xFFFF, ®s->WOLCRClr); |
| 3323 | writeb(WOLCFG_SAB | WOLCFG_SAM, ®s->WOLCFGSet); |
| 3324 | writew(WOLCR_MAGIC_EN, ®s->WOLCRSet); |
| 3325 | |
| 3326 | /* |
| 3327 | if (vptr->wol_opts & VELOCITY_WOL_PHY) |
| 3328 | writew((WOLCR_LINKON_EN|WOLCR_LINKOFF_EN), ®s->WOLCRSet); |
| 3329 | */ |
| 3330 | |
| 3331 | if (vptr->wol_opts & VELOCITY_WOL_UCAST) { |
| 3332 | writew(WOLCR_UNICAST_EN, ®s->WOLCRSet); |
| 3333 | } |
| 3334 | |
| 3335 | if (vptr->wol_opts & VELOCITY_WOL_ARP) { |
| 3336 | struct arp_packet *arp = (struct arp_packet *) buf; |
| 3337 | u16 crc; |
| 3338 | memset(buf, 0, sizeof(struct arp_packet) + 7); |
| 3339 | |
| 3340 | for (i = 0; i < 4; i++) |
| 3341 | writel(mask_pattern[0][i], ®s->ByteMask[0][i]); |
| 3342 | |
| 3343 | arp->type = htons(ETH_P_ARP); |
| 3344 | arp->ar_op = htons(1); |
| 3345 | |
| 3346 | memcpy(arp->ar_tip, vptr->ip_addr, 4); |
| 3347 | |
| 3348 | crc = wol_calc_crc((sizeof(struct arp_packet) + 7) / 8, buf, |
| 3349 | (u8 *) & mask_pattern[0][0]); |
| 3350 | |
| 3351 | writew(crc, ®s->PatternCRC[0]); |
| 3352 | writew(WOLCR_ARP_EN, ®s->WOLCRSet); |
| 3353 | } |
| 3354 | |
| 3355 | BYTE_REG_BITS_ON(PWCFG_WOLTYPE, ®s->PWCFGSet); |
| 3356 | BYTE_REG_BITS_ON(PWCFG_LEGACY_WOLEN, ®s->PWCFGSet); |
| 3357 | |
| 3358 | writew(0x0FFF, ®s->WOLSRClr); |
| 3359 | |
| 3360 | if (vptr->mii_status & VELOCITY_AUTONEG_ENABLE) { |
| 3361 | if (PHYID_GET_PHY_ID(vptr->phy_id) == PHYID_CICADA_CS8201) |
| 3362 | MII_REG_BITS_ON(AUXCR_MDPPS, MII_REG_AUXCR, vptr->mac_regs); |
| 3363 | |
| 3364 | MII_REG_BITS_OFF(G1000CR_1000FD | G1000CR_1000, MII_REG_G1000CR, vptr->mac_regs); |
| 3365 | } |
| 3366 | |
| 3367 | if (vptr->mii_status & VELOCITY_SPEED_1000) |
| 3368 | MII_REG_BITS_ON(BMCR_REAUTO, MII_REG_BMCR, vptr->mac_regs); |
| 3369 | |
| 3370 | BYTE_REG_BITS_ON(CHIPGCR_FCMODE, ®s->CHIPGCR); |
| 3371 | |
| 3372 | { |
| 3373 | u8 GCR; |
| 3374 | GCR = readb(®s->CHIPGCR); |
| 3375 | GCR = (GCR & ~CHIPGCR_FCGMII) | CHIPGCR_FCFDX; |
| 3376 | writeb(GCR, ®s->CHIPGCR); |
| 3377 | } |
| 3378 | |
| 3379 | BYTE_REG_BITS_OFF(ISR_PWEI, ®s->ISR); |
| 3380 | /* Turn on SWPTAG just before entering power mode */ |
| 3381 | BYTE_REG_BITS_ON(STICKHW_SWPTAG, ®s->STICKHW); |
| 3382 | /* Go to bed ..... */ |
| 3383 | BYTE_REG_BITS_ON((STICKHW_DS1 | STICKHW_DS0), ®s->STICKHW); |
| 3384 | |
| 3385 | return 0; |
| 3386 | } |
| 3387 | |
| 3388 | static int velocity_suspend(struct pci_dev *pdev, pm_message_t state) |
| 3389 | { |
| 3390 | struct net_device *dev = pci_get_drvdata(pdev); |
| 3391 | struct velocity_info *vptr = netdev_priv(dev); |
| 3392 | unsigned long flags; |
| 3393 | |
| 3394 | if(!netif_running(vptr->dev)) |
| 3395 | return 0; |
| 3396 | |
| 3397 | netif_device_detach(vptr->dev); |
| 3398 | |
| 3399 | spin_lock_irqsave(&vptr->lock, flags); |
| 3400 | pci_save_state(pdev); |
| 3401 | #ifdef ETHTOOL_GWOL |
| 3402 | if (vptr->flags & VELOCITY_FLAGS_WOL_ENABLED) { |
| 3403 | velocity_get_ip(vptr); |
| 3404 | velocity_save_context(vptr, &vptr->context); |
| 3405 | velocity_shutdown(vptr); |
| 3406 | velocity_set_wol(vptr); |
Al Viro | 4a51c0d | 2008-01-30 19:10:13 +0000 | [diff] [blame] | 3407 | pci_enable_wake(pdev, PCI_D3hot, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3408 | pci_set_power_state(pdev, PCI_D3hot); |
| 3409 | } else { |
| 3410 | velocity_save_context(vptr, &vptr->context); |
| 3411 | velocity_shutdown(vptr); |
| 3412 | pci_disable_device(pdev); |
| 3413 | pci_set_power_state(pdev, pci_choose_state(pdev, state)); |
| 3414 | } |
| 3415 | #else |
| 3416 | pci_set_power_state(pdev, pci_choose_state(pdev, state)); |
| 3417 | #endif |
| 3418 | spin_unlock_irqrestore(&vptr->lock, flags); |
| 3419 | return 0; |
| 3420 | } |
| 3421 | |
| 3422 | static int velocity_resume(struct pci_dev *pdev) |
| 3423 | { |
| 3424 | struct net_device *dev = pci_get_drvdata(pdev); |
| 3425 | struct velocity_info *vptr = netdev_priv(dev); |
| 3426 | unsigned long flags; |
| 3427 | int i; |
| 3428 | |
| 3429 | if(!netif_running(vptr->dev)) |
| 3430 | return 0; |
| 3431 | |
| 3432 | pci_set_power_state(pdev, PCI_D0); |
| 3433 | pci_enable_wake(pdev, 0, 0); |
| 3434 | pci_restore_state(pdev); |
| 3435 | |
| 3436 | mac_wol_reset(vptr->mac_regs); |
| 3437 | |
| 3438 | spin_lock_irqsave(&vptr->lock, flags); |
| 3439 | velocity_restore_context(vptr, &vptr->context); |
| 3440 | velocity_init_registers(vptr, VELOCITY_INIT_WOL); |
| 3441 | mac_disable_int(vptr->mac_regs); |
| 3442 | |
| 3443 | velocity_tx_srv(vptr, 0); |
| 3444 | |
| 3445 | for (i = 0; i < vptr->num_txq; i++) { |
| 3446 | if (vptr->td_used[i]) { |
| 3447 | mac_tx_queue_wake(vptr->mac_regs, i); |
| 3448 | } |
| 3449 | } |
| 3450 | |
| 3451 | mac_enable_int(vptr->mac_regs); |
| 3452 | spin_unlock_irqrestore(&vptr->lock, flags); |
| 3453 | netif_device_attach(vptr->dev); |
| 3454 | |
| 3455 | return 0; |
| 3456 | } |
| 3457 | |
Randy Dunlap | ce9f7fe | 2006-12-18 21:21:10 -0800 | [diff] [blame] | 3458 | #ifdef CONFIG_INET |
| 3459 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3460 | static int velocity_netdev_event(struct notifier_block *nb, unsigned long notification, void *ptr) |
| 3461 | { |
| 3462 | struct in_ifaddr *ifa = (struct in_ifaddr *) ptr; |
| 3463 | |
| 3464 | if (ifa) { |
| 3465 | struct net_device *dev = ifa->ifa_dev->dev; |
| 3466 | struct velocity_info *vptr; |
| 3467 | unsigned long flags; |
| 3468 | |
| 3469 | spin_lock_irqsave(&velocity_dev_list_lock, flags); |
| 3470 | list_for_each_entry(vptr, &velocity_dev_list, list) { |
| 3471 | if (vptr->dev == dev) { |
| 3472 | velocity_get_ip(vptr); |
| 3473 | break; |
| 3474 | } |
| 3475 | } |
| 3476 | spin_unlock_irqrestore(&velocity_dev_list_lock, flags); |
| 3477 | } |
| 3478 | return NOTIFY_DONE; |
| 3479 | } |
Randy Dunlap | ce9f7fe | 2006-12-18 21:21:10 -0800 | [diff] [blame] | 3480 | |
| 3481 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3482 | #endif |