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 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 12 | * More testing |
| 13 | * |
Alan Cox | 113aa83 | 2008-10-13 19:01:08 -0700 | [diff] [blame] | 14 | * The changes are (c) Copyright 2004, Red Hat Inc. <alan@lxorguk.ukuu.org.uk> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 15 | * Additional fixes and clean up: Francois Romieu |
| 16 | * |
| 17 | * This source has not been verified for use in safety critical systems. |
| 18 | * |
| 19 | * Please direct queries about the revamped driver to the linux-kernel |
| 20 | * list not VIA. |
| 21 | * |
| 22 | * Original code: |
| 23 | * |
| 24 | * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. |
| 25 | * All rights reserved. |
| 26 | * |
| 27 | * This software may be redistributed and/or modified under |
| 28 | * the terms of the GNU General Public License as published by the Free |
| 29 | * Software Foundation; either version 2 of the License, or |
| 30 | * any later version. |
| 31 | * |
| 32 | * This program is distributed in the hope that it will be useful, but |
| 33 | * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY |
| 34 | * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 35 | * for more details. |
| 36 | * |
| 37 | * Author: Chuang Liang-Shing, AJ Jiang |
| 38 | * |
| 39 | * Date: Jan 24, 2003 |
| 40 | * |
| 41 | * MODULE_LICENSE("GPL"); |
| 42 | * |
| 43 | */ |
| 44 | |
| 45 | |
| 46 | #include <linux/module.h> |
| 47 | #include <linux/types.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 48 | #include <linux/init.h> |
| 49 | #include <linux/mm.h> |
| 50 | #include <linux/errno.h> |
| 51 | #include <linux/ioport.h> |
| 52 | #include <linux/pci.h> |
| 53 | #include <linux/kernel.h> |
| 54 | #include <linux/netdevice.h> |
| 55 | #include <linux/etherdevice.h> |
| 56 | #include <linux/skbuff.h> |
| 57 | #include <linux/delay.h> |
| 58 | #include <linux/timer.h> |
| 59 | #include <linux/slab.h> |
| 60 | #include <linux/interrupt.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 61 | #include <linux/string.h> |
| 62 | #include <linux/wait.h> |
Dave Jones | c406740 | 2009-07-20 17:35:21 +0000 | [diff] [blame] | 63 | #include <linux/io.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 64 | #include <linux/if.h> |
Dave Jones | c406740 | 2009-07-20 17:35:21 +0000 | [diff] [blame] | 65 | #include <linux/uaccess.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 66 | #include <linux/proc_fs.h> |
| 67 | #include <linux/inetdevice.h> |
| 68 | #include <linux/reboot.h> |
| 69 | #include <linux/ethtool.h> |
| 70 | #include <linux/mii.h> |
| 71 | #include <linux/in.h> |
| 72 | #include <linux/if_arp.h> |
Stephen Hemminger | 501e4d2 | 2007-08-24 13:56:49 -0700 | [diff] [blame] | 73 | #include <linux/if_vlan.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 74 | #include <linux/ip.h> |
| 75 | #include <linux/tcp.h> |
| 76 | #include <linux/udp.h> |
| 77 | #include <linux/crc-ccitt.h> |
| 78 | #include <linux/crc32.h> |
| 79 | |
| 80 | #include "via-velocity.h" |
| 81 | |
| 82 | |
Dave Jones | c406740 | 2009-07-20 17:35:21 +0000 | [diff] [blame] | 83 | static int velocity_nics; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 84 | static int msglevel = MSG_LEVEL_INFO; |
| 85 | |
Stephen Hemminger | 01faccb | 2007-08-24 14:40:45 -0700 | [diff] [blame] | 86 | /** |
| 87 | * mac_get_cam_mask - Read a CAM mask |
| 88 | * @regs: register block for this velocity |
| 89 | * @mask: buffer to store mask |
| 90 | * |
| 91 | * Fetch the mask bits of the selected CAM and store them into the |
| 92 | * provided mask buffer. |
| 93 | */ |
Dave Jones | c406740 | 2009-07-20 17:35:21 +0000 | [diff] [blame] | 94 | static void mac_get_cam_mask(struct mac_regs __iomem *regs, u8 *mask) |
Stephen Hemminger | 01faccb | 2007-08-24 14:40:45 -0700 | [diff] [blame] | 95 | { |
| 96 | int i; |
| 97 | |
| 98 | /* Select CAM mask */ |
| 99 | BYTE_REG_BITS_SET(CAMCR_PS_CAM_MASK, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR); |
| 100 | |
| 101 | writeb(0, ®s->CAMADDR); |
| 102 | |
| 103 | /* read mask */ |
| 104 | for (i = 0; i < 8; i++) |
| 105 | *mask++ = readb(&(regs->MARCAM[i])); |
| 106 | |
| 107 | /* disable CAMEN */ |
| 108 | writeb(0, ®s->CAMADDR); |
| 109 | |
| 110 | /* Select mar */ |
| 111 | BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR); |
Stephen Hemminger | 01faccb | 2007-08-24 14:40:45 -0700 | [diff] [blame] | 112 | } |
| 113 | |
| 114 | |
| 115 | /** |
| 116 | * mac_set_cam_mask - Set a CAM mask |
| 117 | * @regs: register block for this velocity |
| 118 | * @mask: CAM mask to load |
| 119 | * |
| 120 | * Store a new mask into a CAM |
| 121 | */ |
Dave Jones | c406740 | 2009-07-20 17:35:21 +0000 | [diff] [blame] | 122 | static void mac_set_cam_mask(struct mac_regs __iomem *regs, u8 *mask) |
Stephen Hemminger | 01faccb | 2007-08-24 14:40:45 -0700 | [diff] [blame] | 123 | { |
| 124 | int i; |
| 125 | /* Select CAM mask */ |
| 126 | BYTE_REG_BITS_SET(CAMCR_PS_CAM_MASK, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR); |
| 127 | |
| 128 | writeb(CAMADDR_CAMEN, ®s->CAMADDR); |
| 129 | |
Dave Jones | c406740 | 2009-07-20 17:35:21 +0000 | [diff] [blame] | 130 | for (i = 0; i < 8; i++) |
Stephen Hemminger | 01faccb | 2007-08-24 14:40:45 -0700 | [diff] [blame] | 131 | writeb(*mask++, &(regs->MARCAM[i])); |
Dave Jones | c406740 | 2009-07-20 17:35:21 +0000 | [diff] [blame] | 132 | |
Stephen Hemminger | 01faccb | 2007-08-24 14:40:45 -0700 | [diff] [blame] | 133 | /* disable CAMEN */ |
| 134 | writeb(0, ®s->CAMADDR); |
| 135 | |
| 136 | /* Select mar */ |
| 137 | BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR); |
| 138 | } |
| 139 | |
Dave Jones | c406740 | 2009-07-20 17:35:21 +0000 | [diff] [blame] | 140 | static void mac_set_vlan_cam_mask(struct mac_regs __iomem *regs, u8 *mask) |
Stephen Hemminger | 01faccb | 2007-08-24 14:40:45 -0700 | [diff] [blame] | 141 | { |
| 142 | int i; |
| 143 | /* Select CAM mask */ |
| 144 | BYTE_REG_BITS_SET(CAMCR_PS_CAM_MASK, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR); |
| 145 | |
| 146 | writeb(CAMADDR_CAMEN | CAMADDR_VCAMSL, ®s->CAMADDR); |
| 147 | |
Dave Jones | c406740 | 2009-07-20 17:35:21 +0000 | [diff] [blame] | 148 | for (i = 0; i < 8; i++) |
Stephen Hemminger | 01faccb | 2007-08-24 14:40:45 -0700 | [diff] [blame] | 149 | writeb(*mask++, &(regs->MARCAM[i])); |
Dave Jones | c406740 | 2009-07-20 17:35:21 +0000 | [diff] [blame] | 150 | |
Stephen Hemminger | 01faccb | 2007-08-24 14:40:45 -0700 | [diff] [blame] | 151 | /* disable CAMEN */ |
| 152 | writeb(0, ®s->CAMADDR); |
| 153 | |
| 154 | /* Select mar */ |
| 155 | BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR); |
| 156 | } |
| 157 | |
| 158 | /** |
| 159 | * mac_set_cam - set CAM data |
| 160 | * @regs: register block of this velocity |
| 161 | * @idx: Cam index |
| 162 | * @addr: 2 or 6 bytes of CAM data |
| 163 | * |
| 164 | * Load an address or vlan tag into a CAM |
| 165 | */ |
Dave Jones | c406740 | 2009-07-20 17:35:21 +0000 | [diff] [blame] | 166 | static void mac_set_cam(struct mac_regs __iomem *regs, int idx, const u8 *addr) |
Stephen Hemminger | 01faccb | 2007-08-24 14:40:45 -0700 | [diff] [blame] | 167 | { |
| 168 | int i; |
| 169 | |
| 170 | /* Select CAM mask */ |
| 171 | BYTE_REG_BITS_SET(CAMCR_PS_CAM_DATA, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR); |
| 172 | |
| 173 | idx &= (64 - 1); |
| 174 | |
| 175 | writeb(CAMADDR_CAMEN | idx, ®s->CAMADDR); |
| 176 | |
Dave Jones | c406740 | 2009-07-20 17:35:21 +0000 | [diff] [blame] | 177 | for (i = 0; i < 6; i++) |
Stephen Hemminger | 01faccb | 2007-08-24 14:40:45 -0700 | [diff] [blame] | 178 | writeb(*addr++, &(regs->MARCAM[i])); |
Dave Jones | c406740 | 2009-07-20 17:35:21 +0000 | [diff] [blame] | 179 | |
Stephen Hemminger | 01faccb | 2007-08-24 14:40:45 -0700 | [diff] [blame] | 180 | BYTE_REG_BITS_ON(CAMCR_CAMWR, ®s->CAMCR); |
| 181 | |
| 182 | udelay(10); |
| 183 | |
| 184 | writeb(0, ®s->CAMADDR); |
| 185 | |
| 186 | /* Select mar */ |
| 187 | BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR); |
| 188 | } |
| 189 | |
Dave Jones | c406740 | 2009-07-20 17:35:21 +0000 | [diff] [blame] | 190 | static void mac_set_vlan_cam(struct mac_regs __iomem *regs, int idx, |
Stephen Hemminger | 01faccb | 2007-08-24 14:40:45 -0700 | [diff] [blame] | 191 | const u8 *addr) |
| 192 | { |
| 193 | |
| 194 | /* Select CAM mask */ |
| 195 | BYTE_REG_BITS_SET(CAMCR_PS_CAM_DATA, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR); |
| 196 | |
| 197 | idx &= (64 - 1); |
| 198 | |
| 199 | writeb(CAMADDR_CAMEN | CAMADDR_VCAMSL | idx, ®s->CAMADDR); |
| 200 | writew(*((u16 *) addr), ®s->MARCAM[0]); |
| 201 | |
| 202 | BYTE_REG_BITS_ON(CAMCR_CAMWR, ®s->CAMCR); |
| 203 | |
| 204 | udelay(10); |
| 205 | |
| 206 | writeb(0, ®s->CAMADDR); |
| 207 | |
| 208 | /* Select mar */ |
| 209 | BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR); |
| 210 | } |
| 211 | |
| 212 | |
| 213 | /** |
| 214 | * mac_wol_reset - reset WOL after exiting low power |
| 215 | * @regs: register block of this velocity |
| 216 | * |
| 217 | * Called after we drop out of wake on lan mode in order to |
| 218 | * reset the Wake on lan features. This function doesn't restore |
| 219 | * the rest of the logic from the result of sleep/wakeup |
| 220 | */ |
Dave Jones | c406740 | 2009-07-20 17:35:21 +0000 | [diff] [blame] | 221 | static void mac_wol_reset(struct mac_regs __iomem *regs) |
Stephen Hemminger | 01faccb | 2007-08-24 14:40:45 -0700 | [diff] [blame] | 222 | { |
| 223 | |
| 224 | /* Turn off SWPTAG right after leaving power mode */ |
| 225 | BYTE_REG_BITS_OFF(STICKHW_SWPTAG, ®s->STICKHW); |
| 226 | /* clear sticky bits */ |
| 227 | BYTE_REG_BITS_OFF((STICKHW_DS1 | STICKHW_DS0), ®s->STICKHW); |
| 228 | |
| 229 | BYTE_REG_BITS_OFF(CHIPGCR_FCGMII, ®s->CHIPGCR); |
| 230 | BYTE_REG_BITS_OFF(CHIPGCR_FCMODE, ®s->CHIPGCR); |
| 231 | /* disable force PME-enable */ |
| 232 | writeb(WOLCFG_PMEOVR, ®s->WOLCFGClr); |
| 233 | /* disable power-event config bit */ |
| 234 | writew(0xFFFF, ®s->WOLCRClr); |
| 235 | /* clear power status */ |
| 236 | writew(0xFFFF, ®s->WOLSRClr); |
| 237 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 238 | |
Jeff Garzik | 7282d49 | 2006-09-13 14:30:00 -0400 | [diff] [blame] | 239 | static const struct ethtool_ops velocity_ethtool_ops; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 240 | |
| 241 | /* |
| 242 | Define module options |
| 243 | */ |
| 244 | |
| 245 | MODULE_AUTHOR("VIA Networking Technologies, Inc."); |
| 246 | MODULE_LICENSE("GPL"); |
| 247 | MODULE_DESCRIPTION("VIA Networking Velocity Family Gigabit Ethernet Adapter Driver"); |
| 248 | |
Dave Jones | c406740 | 2009-07-20 17:35:21 +0000 | [diff] [blame] | 249 | #define VELOCITY_PARAM(N, D) \ |
| 250 | static int N[MAX_UNITS] = OPTION_DEFAULT;\ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 251 | module_param_array(N, int, NULL, 0); \ |
Dave Jones | c406740 | 2009-07-20 17:35:21 +0000 | [diff] [blame] | 252 | MODULE_PARM_DESC(N, D); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 253 | |
| 254 | #define RX_DESC_MIN 64 |
| 255 | #define RX_DESC_MAX 255 |
| 256 | #define RX_DESC_DEF 64 |
| 257 | VELOCITY_PARAM(RxDescriptors, "Number of receive descriptors"); |
| 258 | |
| 259 | #define TX_DESC_MIN 16 |
| 260 | #define TX_DESC_MAX 256 |
| 261 | #define TX_DESC_DEF 64 |
| 262 | VELOCITY_PARAM(TxDescriptors, "Number of transmit descriptors"); |
| 263 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 264 | #define RX_THRESH_MIN 0 |
| 265 | #define RX_THRESH_MAX 3 |
| 266 | #define RX_THRESH_DEF 0 |
| 267 | /* rx_thresh[] is used for controlling the receive fifo threshold. |
| 268 | 0: indicate the rxfifo threshold is 128 bytes. |
| 269 | 1: indicate the rxfifo threshold is 512 bytes. |
| 270 | 2: indicate the rxfifo threshold is 1024 bytes. |
| 271 | 3: indicate the rxfifo threshold is store & forward. |
| 272 | */ |
| 273 | VELOCITY_PARAM(rx_thresh, "Receive fifo threshold"); |
| 274 | |
| 275 | #define DMA_LENGTH_MIN 0 |
| 276 | #define DMA_LENGTH_MAX 7 |
Simon Kagstrom | 2a5774f | 2009-11-25 22:10:34 +0000 | [diff] [blame] | 277 | #define DMA_LENGTH_DEF 6 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 278 | |
| 279 | /* DMA_length[] is used for controlling the DMA length |
| 280 | 0: 8 DWORDs |
| 281 | 1: 16 DWORDs |
| 282 | 2: 32 DWORDs |
| 283 | 3: 64 DWORDs |
| 284 | 4: 128 DWORDs |
| 285 | 5: 256 DWORDs |
| 286 | 6: SF(flush till emply) |
| 287 | 7: SF(flush till emply) |
| 288 | */ |
| 289 | VELOCITY_PARAM(DMA_length, "DMA length"); |
| 290 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 291 | #define IP_ALIG_DEF 0 |
| 292 | /* IP_byte_align[] is used for IP header DWORD byte aligned |
| 293 | 0: indicate the IP header won't be DWORD byte aligned.(Default) . |
| 294 | 1: indicate the IP header will be DWORD byte aligned. |
| 295 | In some enviroment, the IP header should be DWORD byte aligned, |
| 296 | or the packet will be droped when we receive it. (eg: IPVS) |
| 297 | */ |
| 298 | VELOCITY_PARAM(IP_byte_align, "Enable IP header dword aligned"); |
| 299 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 300 | #define FLOW_CNTL_DEF 1 |
| 301 | #define FLOW_CNTL_MIN 1 |
| 302 | #define FLOW_CNTL_MAX 5 |
| 303 | |
| 304 | /* flow_control[] is used for setting the flow control ability of NIC. |
| 305 | 1: hardware deafult - AUTO (default). Use Hardware default value in ANAR. |
| 306 | 2: enable TX flow control. |
| 307 | 3: enable RX flow control. |
| 308 | 4: enable RX/TX flow control. |
| 309 | 5: disable |
| 310 | */ |
| 311 | VELOCITY_PARAM(flow_control, "Enable flow control ability"); |
| 312 | |
| 313 | #define MED_LNK_DEF 0 |
| 314 | #define MED_LNK_MIN 0 |
| 315 | #define MED_LNK_MAX 4 |
| 316 | /* speed_duplex[] is used for setting the speed and duplex mode of NIC. |
| 317 | 0: indicate autonegotiation for both speed and duplex mode |
| 318 | 1: indicate 100Mbps half duplex mode |
| 319 | 2: indicate 100Mbps full duplex mode |
| 320 | 3: indicate 10Mbps half duplex mode |
| 321 | 4: indicate 10Mbps full duplex mode |
| 322 | |
| 323 | Note: |
Dave Jones | c406740 | 2009-07-20 17:35:21 +0000 | [diff] [blame] | 324 | if EEPROM have been set to the force mode, this option is ignored |
| 325 | by driver. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 326 | */ |
| 327 | VELOCITY_PARAM(speed_duplex, "Setting the speed and duplex mode"); |
| 328 | |
| 329 | #define VAL_PKT_LEN_DEF 0 |
| 330 | /* ValPktLen[] is used for setting the checksum offload ability of NIC. |
| 331 | 0: Receive frame with invalid layer 2 length (Default) |
| 332 | 1: Drop frame with invalid layer 2 length |
| 333 | */ |
| 334 | VELOCITY_PARAM(ValPktLen, "Receiving or Drop invalid 802.3 frame"); |
| 335 | |
| 336 | #define WOL_OPT_DEF 0 |
| 337 | #define WOL_OPT_MIN 0 |
| 338 | #define WOL_OPT_MAX 7 |
| 339 | /* wol_opts[] is used for controlling wake on lan behavior. |
| 340 | 0: Wake up if recevied a magic packet. (Default) |
| 341 | 1: Wake up if link status is on/off. |
| 342 | 2: Wake up if recevied an arp packet. |
| 343 | 4: Wake up if recevied any unicast packet. |
| 344 | Those value can be sumed up to support more than one option. |
| 345 | */ |
| 346 | VELOCITY_PARAM(wol_opts, "Wake On Lan options"); |
| 347 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 348 | static int rx_copybreak = 200; |
| 349 | module_param(rx_copybreak, int, 0644); |
| 350 | MODULE_PARM_DESC(rx_copybreak, "Copy breakpoint for copy-only-tiny-frames"); |
| 351 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 352 | /* |
| 353 | * Internal board variants. At the moment we have only one |
| 354 | */ |
Andrew Morton | 4f14b92 | 2008-02-09 23:41:40 -0800 | [diff] [blame] | 355 | static struct velocity_info_tbl chip_info_table[] = { |
Jeff Garzik | cabb766 | 2006-06-27 09:25:28 -0400 | [diff] [blame] | 356 | {CHIP_TYPE_VT6110, "VIA Networking Velocity Family Gigabit Ethernet Adapter", 1, 0x00FFFFFFUL}, |
| 357 | { } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 358 | }; |
| 359 | |
| 360 | /* |
| 361 | * Describe the PCI device identifiers that we support in this |
| 362 | * device driver. Used for hotplug autoloading. |
| 363 | */ |
Alexey Dobriyan | a3aa188 | 2010-01-07 11:58:11 +0000 | [diff] [blame] | 364 | static DEFINE_PCI_DEVICE_TABLE(velocity_id_table) = { |
Jeff Garzik | e54f489 | 2006-06-27 09:20:08 -0400 | [diff] [blame] | 365 | { PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_612X) }, |
| 366 | { } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 367 | }; |
| 368 | |
| 369 | MODULE_DEVICE_TABLE(pci, velocity_id_table); |
| 370 | |
| 371 | /** |
| 372 | * get_chip_name - identifier to name |
| 373 | * @id: chip identifier |
| 374 | * |
| 375 | * Given a chip identifier return a suitable description. Returns |
| 376 | * a pointer a static string valid while the driver is loaded. |
| 377 | */ |
Stephen Hemminger | 01faccb | 2007-08-24 14:40:45 -0700 | [diff] [blame] | 378 | static const char __devinit *get_chip_name(enum chip_type chip_id) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 379 | { |
| 380 | int i; |
| 381 | for (i = 0; chip_info_table[i].name != NULL; i++) |
| 382 | if (chip_info_table[i].chip_id == chip_id) |
| 383 | break; |
| 384 | return chip_info_table[i].name; |
| 385 | } |
| 386 | |
| 387 | /** |
| 388 | * velocity_remove1 - device unplug |
| 389 | * @pdev: PCI device being removed |
| 390 | * |
| 391 | * Device unload callback. Called on an unplug or on module |
| 392 | * unload for each active device that is present. Disconnects |
| 393 | * the device from the network layer and frees all the resources |
| 394 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 395 | static void __devexit velocity_remove1(struct pci_dev *pdev) |
| 396 | { |
| 397 | struct net_device *dev = pci_get_drvdata(pdev); |
Jeff Garzik | 8ab6f3f | 2006-06-27 08:56:23 -0400 | [diff] [blame] | 398 | struct velocity_info *vptr = netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 399 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 400 | unregister_netdev(dev); |
| 401 | iounmap(vptr->mac_regs); |
| 402 | pci_release_regions(pdev); |
| 403 | pci_disable_device(pdev); |
| 404 | pci_set_drvdata(pdev, NULL); |
| 405 | free_netdev(dev); |
| 406 | |
| 407 | velocity_nics--; |
| 408 | } |
| 409 | |
| 410 | /** |
| 411 | * velocity_set_int_opt - parser for integer options |
| 412 | * @opt: pointer to option value |
| 413 | * @val: value the user requested (or -1 for default) |
| 414 | * @min: lowest value allowed |
| 415 | * @max: highest value allowed |
| 416 | * @def: default value |
| 417 | * @name: property name |
| 418 | * @dev: device name |
| 419 | * |
| 420 | * Set an integer property in the module options. This function does |
| 421 | * all the verification and checking as well as reporting so that |
| 422 | * we don't duplicate code for each option. |
| 423 | */ |
Sven Hartge | 07b5f6a | 2008-10-23 13:03:44 +0000 | [diff] [blame] | 424 | static void __devinit velocity_set_int_opt(int *opt, int val, int min, int max, int def, char *name, const char *devname) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 425 | { |
| 426 | if (val == -1) |
| 427 | *opt = def; |
| 428 | else if (val < min || val > max) { |
| 429 | VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: the value of parameter %s is invalid, the valid range is (%d-%d)\n", |
| 430 | devname, name, min, max); |
| 431 | *opt = def; |
| 432 | } else { |
| 433 | VELOCITY_PRT(MSG_LEVEL_INFO, KERN_INFO "%s: set value of parameter %s to %d\n", |
| 434 | devname, name, val); |
| 435 | *opt = val; |
| 436 | } |
| 437 | } |
| 438 | |
| 439 | /** |
| 440 | * velocity_set_bool_opt - parser for boolean options |
| 441 | * @opt: pointer to option value |
| 442 | * @val: value the user requested (or -1 for default) |
| 443 | * @def: default value (yes/no) |
| 444 | * @flag: numeric value to set for true. |
| 445 | * @name: property name |
| 446 | * @dev: device name |
| 447 | * |
| 448 | * Set a boolean property in the module options. This function does |
| 449 | * all the verification and checking as well as reporting so that |
| 450 | * we don't duplicate code for each option. |
| 451 | */ |
Dave Jones | c406740 | 2009-07-20 17:35:21 +0000 | [diff] [blame] | 452 | static void __devinit velocity_set_bool_opt(u32 *opt, int val, int def, u32 flag, char *name, const char *devname) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 453 | { |
| 454 | (*opt) &= (~flag); |
| 455 | if (val == -1) |
| 456 | *opt |= (def ? flag : 0); |
| 457 | else if (val < 0 || val > 1) { |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 458 | 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] | 459 | devname, name); |
| 460 | *opt |= (def ? flag : 0); |
| 461 | } else { |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 462 | printk(KERN_INFO "%s: set parameter %s to %s\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 463 | devname, name, val ? "TRUE" : "FALSE"); |
| 464 | *opt |= (val ? flag : 0); |
| 465 | } |
| 466 | } |
| 467 | |
| 468 | /** |
| 469 | * velocity_get_options - set options on device |
| 470 | * @opts: option structure for the device |
| 471 | * @index: index of option to use in module options array |
| 472 | * @devname: device name |
| 473 | * |
| 474 | * Turn the module and command options into a single structure |
| 475 | * for the current device |
| 476 | */ |
Sven Hartge | 07b5f6a | 2008-10-23 13:03:44 +0000 | [diff] [blame] | 477 | static void __devinit velocity_get_options(struct velocity_opt *opts, int index, const char *devname) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 478 | { |
| 479 | |
| 480 | velocity_set_int_opt(&opts->rx_thresh, rx_thresh[index], RX_THRESH_MIN, RX_THRESH_MAX, RX_THRESH_DEF, "rx_thresh", devname); |
| 481 | velocity_set_int_opt(&opts->DMA_length, DMA_length[index], DMA_LENGTH_MIN, DMA_LENGTH_MAX, DMA_LENGTH_DEF, "DMA_length", devname); |
| 482 | velocity_set_int_opt(&opts->numrx, RxDescriptors[index], RX_DESC_MIN, RX_DESC_MAX, RX_DESC_DEF, "RxDescriptors", devname); |
| 483 | 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] | 484 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 485 | velocity_set_int_opt(&opts->flow_cntl, flow_control[index], FLOW_CNTL_MIN, FLOW_CNTL_MAX, FLOW_CNTL_DEF, "flow_control", devname); |
| 486 | velocity_set_bool_opt(&opts->flags, IP_byte_align[index], IP_ALIG_DEF, VELOCITY_FLAGS_IP_ALIGN, "IP_byte_align", devname); |
| 487 | velocity_set_bool_opt(&opts->flags, ValPktLen[index], VAL_PKT_LEN_DEF, VELOCITY_FLAGS_VAL_PKT_LEN, "ValPktLen", devname); |
| 488 | velocity_set_int_opt((int *) &opts->spd_dpx, speed_duplex[index], MED_LNK_MIN, MED_LNK_MAX, MED_LNK_DEF, "Media link mode", devname); |
| 489 | 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); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 490 | opts->numrx = (opts->numrx & ~3); |
| 491 | } |
| 492 | |
| 493 | /** |
| 494 | * velocity_init_cam_filter - initialise CAM |
| 495 | * @vptr: velocity to program |
| 496 | * |
| 497 | * Initialize the content addressable memory used for filters. Load |
| 498 | * appropriately according to the presence of VLAN |
| 499 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 500 | static void velocity_init_cam_filter(struct velocity_info *vptr) |
| 501 | { |
Dave Jones | c406740 | 2009-07-20 17:35:21 +0000 | [diff] [blame] | 502 | struct mac_regs __iomem *regs = vptr->mac_regs; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 503 | |
| 504 | /* Turn on MCFG_PQEN, turn off MCFG_RTGOPT */ |
| 505 | WORD_REG_BITS_SET(MCFG_PQEN, MCFG_RTGOPT, ®s->MCFG); |
| 506 | WORD_REG_BITS_ON(MCFG_VIDFR, ®s->MCFG); |
| 507 | |
| 508 | /* Disable all CAMs */ |
| 509 | memset(vptr->vCAMmask, 0, sizeof(u8) * 8); |
| 510 | memset(vptr->mCAMmask, 0, sizeof(u8) * 8); |
Stephen Hemminger | 01faccb | 2007-08-24 14:40:45 -0700 | [diff] [blame] | 511 | mac_set_vlan_cam_mask(regs, vptr->vCAMmask); |
| 512 | mac_set_cam_mask(regs, vptr->mCAMmask); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 513 | |
Francois Romieu | d4f73c8 | 2008-04-24 23:32:33 +0200 | [diff] [blame] | 514 | /* Enable VCAMs */ |
Stephen Hemminger | 501e4d2 | 2007-08-24 13:56:49 -0700 | [diff] [blame] | 515 | if (vptr->vlgrp) { |
Francois Romieu | d4f73c8 | 2008-04-24 23:32:33 +0200 | [diff] [blame] | 516 | unsigned int vid, i = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 517 | |
Francois Romieu | d4f73c8 | 2008-04-24 23:32:33 +0200 | [diff] [blame] | 518 | if (!vlan_group_get_device(vptr->vlgrp, 0)) |
| 519 | WORD_REG_BITS_ON(MCFG_RTGOPT, ®s->MCFG); |
| 520 | |
| 521 | for (vid = 1; (vid < VLAN_VID_MASK); vid++) { |
| 522 | if (vlan_group_get_device(vptr->vlgrp, vid)) { |
| 523 | mac_set_vlan_cam(regs, i, (u8 *) &vid); |
| 524 | vptr->vCAMmask[i / 8] |= 0x1 << (i % 8); |
| 525 | if (++i >= VCAM_SIZE) |
| 526 | break; |
Stephen Hemminger | 501e4d2 | 2007-08-24 13:56:49 -0700 | [diff] [blame] | 527 | } |
| 528 | } |
Stephen Hemminger | 01faccb | 2007-08-24 14:40:45 -0700 | [diff] [blame] | 529 | mac_set_vlan_cam_mask(regs, vptr->vCAMmask); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 530 | } |
| 531 | } |
| 532 | |
Francois Romieu | d4f73c8 | 2008-04-24 23:32:33 +0200 | [diff] [blame] | 533 | static void velocity_vlan_rx_register(struct net_device *dev, |
| 534 | struct vlan_group *grp) |
| 535 | { |
| 536 | struct velocity_info *vptr = netdev_priv(dev); |
| 537 | |
| 538 | vptr->vlgrp = grp; |
| 539 | } |
| 540 | |
Stephen Hemminger | 501e4d2 | 2007-08-24 13:56:49 -0700 | [diff] [blame] | 541 | static void velocity_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) |
| 542 | { |
| 543 | struct velocity_info *vptr = netdev_priv(dev); |
| 544 | |
Dave Jones | c406740 | 2009-07-20 17:35:21 +0000 | [diff] [blame] | 545 | spin_lock_irq(&vptr->lock); |
Stephen Hemminger | 501e4d2 | 2007-08-24 13:56:49 -0700 | [diff] [blame] | 546 | velocity_init_cam_filter(vptr); |
Dave Jones | c406740 | 2009-07-20 17:35:21 +0000 | [diff] [blame] | 547 | spin_unlock_irq(&vptr->lock); |
Stephen Hemminger | 501e4d2 | 2007-08-24 13:56:49 -0700 | [diff] [blame] | 548 | } |
| 549 | |
| 550 | static void velocity_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) |
| 551 | { |
| 552 | struct velocity_info *vptr = netdev_priv(dev); |
| 553 | |
Dave Jones | c406740 | 2009-07-20 17:35:21 +0000 | [diff] [blame] | 554 | spin_lock_irq(&vptr->lock); |
Stephen Hemminger | 501e4d2 | 2007-08-24 13:56:49 -0700 | [diff] [blame] | 555 | vlan_group_set_device(vptr->vlgrp, vid, NULL); |
| 556 | velocity_init_cam_filter(vptr); |
Dave Jones | c406740 | 2009-07-20 17:35:21 +0000 | [diff] [blame] | 557 | spin_unlock_irq(&vptr->lock); |
Stephen Hemminger | 501e4d2 | 2007-08-24 13:56:49 -0700 | [diff] [blame] | 558 | } |
| 559 | |
Francois Romieu | 3c4dc71 | 2008-07-31 22:51:18 +0200 | [diff] [blame] | 560 | static void velocity_init_rx_ring_indexes(struct velocity_info *vptr) |
| 561 | { |
| 562 | vptr->rx.dirty = vptr->rx.filled = vptr->rx.curr = 0; |
| 563 | } |
Stephen Hemminger | 501e4d2 | 2007-08-24 13:56:49 -0700 | [diff] [blame] | 564 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 565 | /** |
| 566 | * velocity_rx_reset - handle a receive reset |
| 567 | * @vptr: velocity we are resetting |
| 568 | * |
| 569 | * Reset the ownership and status for the receive ring side. |
| 570 | * Hand all the receive queue to the NIC. |
| 571 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 572 | static void velocity_rx_reset(struct velocity_info *vptr) |
| 573 | { |
| 574 | |
Dave Jones | c406740 | 2009-07-20 17:35:21 +0000 | [diff] [blame] | 575 | struct mac_regs __iomem *regs = vptr->mac_regs; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 576 | int i; |
| 577 | |
Francois Romieu | 3c4dc71 | 2008-07-31 22:51:18 +0200 | [diff] [blame] | 578 | velocity_init_rx_ring_indexes(vptr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 579 | |
| 580 | /* |
| 581 | * Init state, all RD entries belong to the NIC |
| 582 | */ |
| 583 | for (i = 0; i < vptr->options.numrx; ++i) |
Francois Romieu | 0fe9f15 | 2008-07-31 22:10:10 +0200 | [diff] [blame] | 584 | vptr->rx.ring[i].rdesc0.len |= OWNED_BY_NIC; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 585 | |
| 586 | writew(vptr->options.numrx, ®s->RBRDU); |
Francois Romieu | 0fe9f15 | 2008-07-31 22:10:10 +0200 | [diff] [blame] | 587 | writel(vptr->rx.pool_dma, ®s->RDBaseLo); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 588 | writew(0, ®s->RDIdx); |
| 589 | writew(vptr->options.numrx - 1, ®s->RDCSize); |
| 590 | } |
| 591 | |
| 592 | /** |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 593 | * velocity_get_opt_media_mode - get media selection |
| 594 | * @vptr: velocity adapter |
| 595 | * |
| 596 | * Get the media mode stored in EEPROM or module options and load |
| 597 | * mii_status accordingly. The requested link state information |
| 598 | * is also returned. |
| 599 | */ |
| 600 | static u32 velocity_get_opt_media_mode(struct velocity_info *vptr) |
| 601 | { |
| 602 | u32 status = 0; |
| 603 | |
| 604 | switch (vptr->options.spd_dpx) { |
| 605 | case SPD_DPX_AUTO: |
| 606 | status = VELOCITY_AUTONEG_ENABLE; |
| 607 | break; |
| 608 | case SPD_DPX_100_FULL: |
| 609 | status = VELOCITY_SPEED_100 | VELOCITY_DUPLEX_FULL; |
| 610 | break; |
| 611 | case SPD_DPX_10_FULL: |
| 612 | status = VELOCITY_SPEED_10 | VELOCITY_DUPLEX_FULL; |
| 613 | break; |
| 614 | case SPD_DPX_100_HALF: |
| 615 | status = VELOCITY_SPEED_100; |
| 616 | break; |
| 617 | case SPD_DPX_10_HALF: |
| 618 | status = VELOCITY_SPEED_10; |
| 619 | break; |
| 620 | } |
| 621 | vptr->mii_status = status; |
| 622 | return status; |
| 623 | } |
| 624 | |
| 625 | /** |
| 626 | * safe_disable_mii_autopoll - autopoll off |
| 627 | * @regs: velocity registers |
| 628 | * |
| 629 | * Turn off the autopoll and wait for it to disable on the chip |
| 630 | */ |
| 631 | static void safe_disable_mii_autopoll(struct mac_regs __iomem *regs) |
| 632 | { |
| 633 | u16 ww; |
| 634 | |
| 635 | /* turn off MAUTO */ |
| 636 | writeb(0, ®s->MIICR); |
| 637 | for (ww = 0; ww < W_MAX_TIMEOUT; ww++) { |
| 638 | udelay(1); |
| 639 | if (BYTE_REG_BITS_IS_ON(MIISR_MIDLE, ®s->MIISR)) |
| 640 | break; |
| 641 | } |
| 642 | } |
| 643 | |
| 644 | /** |
| 645 | * enable_mii_autopoll - turn on autopolling |
| 646 | * @regs: velocity registers |
| 647 | * |
| 648 | * Enable the MII link status autopoll feature on the Velocity |
| 649 | * hardware. Wait for it to enable. |
| 650 | */ |
| 651 | static void enable_mii_autopoll(struct mac_regs __iomem *regs) |
| 652 | { |
| 653 | int ii; |
| 654 | |
| 655 | writeb(0, &(regs->MIICR)); |
| 656 | writeb(MIIADR_SWMPL, ®s->MIIADR); |
| 657 | |
| 658 | for (ii = 0; ii < W_MAX_TIMEOUT; ii++) { |
| 659 | udelay(1); |
| 660 | if (BYTE_REG_BITS_IS_ON(MIISR_MIDLE, ®s->MIISR)) |
| 661 | break; |
| 662 | } |
| 663 | |
| 664 | writeb(MIICR_MAUTO, ®s->MIICR); |
| 665 | |
| 666 | for (ii = 0; ii < W_MAX_TIMEOUT; ii++) { |
| 667 | udelay(1); |
| 668 | if (!BYTE_REG_BITS_IS_ON(MIISR_MIDLE, ®s->MIISR)) |
| 669 | break; |
| 670 | } |
| 671 | |
| 672 | } |
| 673 | |
| 674 | /** |
| 675 | * velocity_mii_read - read MII data |
| 676 | * @regs: velocity registers |
| 677 | * @index: MII register index |
| 678 | * @data: buffer for received data |
| 679 | * |
| 680 | * Perform a single read of an MII 16bit register. Returns zero |
| 681 | * on success or -ETIMEDOUT if the PHY did not respond. |
| 682 | */ |
| 683 | static int velocity_mii_read(struct mac_regs __iomem *regs, u8 index, u16 *data) |
| 684 | { |
| 685 | u16 ww; |
| 686 | |
| 687 | /* |
| 688 | * Disable MIICR_MAUTO, so that mii addr can be set normally |
| 689 | */ |
| 690 | safe_disable_mii_autopoll(regs); |
| 691 | |
| 692 | writeb(index, ®s->MIIADR); |
| 693 | |
| 694 | BYTE_REG_BITS_ON(MIICR_RCMD, ®s->MIICR); |
| 695 | |
| 696 | for (ww = 0; ww < W_MAX_TIMEOUT; ww++) { |
| 697 | if (!(readb(®s->MIICR) & MIICR_RCMD)) |
| 698 | break; |
| 699 | } |
| 700 | |
| 701 | *data = readw(®s->MIIDATA); |
| 702 | |
| 703 | enable_mii_autopoll(regs); |
| 704 | if (ww == W_MAX_TIMEOUT) |
| 705 | return -ETIMEDOUT; |
| 706 | return 0; |
| 707 | } |
| 708 | |
| 709 | |
| 710 | /** |
| 711 | * mii_check_media_mode - check media state |
| 712 | * @regs: velocity registers |
| 713 | * |
| 714 | * Check the current MII status and determine the link status |
| 715 | * accordingly |
| 716 | */ |
| 717 | static u32 mii_check_media_mode(struct mac_regs __iomem *regs) |
| 718 | { |
| 719 | u32 status = 0; |
| 720 | u16 ANAR; |
| 721 | |
| 722 | if (!MII_REG_BITS_IS_ON(BMSR_LNK, MII_REG_BMSR, regs)) |
| 723 | status |= VELOCITY_LINK_FAIL; |
| 724 | |
| 725 | if (MII_REG_BITS_IS_ON(G1000CR_1000FD, MII_REG_G1000CR, regs)) |
| 726 | status |= VELOCITY_SPEED_1000 | VELOCITY_DUPLEX_FULL; |
| 727 | else if (MII_REG_BITS_IS_ON(G1000CR_1000, MII_REG_G1000CR, regs)) |
| 728 | status |= (VELOCITY_SPEED_1000); |
| 729 | else { |
| 730 | velocity_mii_read(regs, MII_REG_ANAR, &ANAR); |
| 731 | if (ANAR & ANAR_TXFD) |
| 732 | status |= (VELOCITY_SPEED_100 | VELOCITY_DUPLEX_FULL); |
| 733 | else if (ANAR & ANAR_TX) |
| 734 | status |= VELOCITY_SPEED_100; |
| 735 | else if (ANAR & ANAR_10FD) |
| 736 | status |= (VELOCITY_SPEED_10 | VELOCITY_DUPLEX_FULL); |
| 737 | else |
| 738 | status |= (VELOCITY_SPEED_10); |
| 739 | } |
| 740 | |
| 741 | if (MII_REG_BITS_IS_ON(BMCR_AUTO, MII_REG_BMCR, regs)) { |
| 742 | velocity_mii_read(regs, MII_REG_ANAR, &ANAR); |
| 743 | if ((ANAR & (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10)) |
| 744 | == (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10)) { |
| 745 | if (MII_REG_BITS_IS_ON(G1000CR_1000 | G1000CR_1000FD, MII_REG_G1000CR, regs)) |
| 746 | status |= VELOCITY_AUTONEG_ENABLE; |
| 747 | } |
| 748 | } |
| 749 | |
| 750 | return status; |
| 751 | } |
| 752 | |
| 753 | /** |
| 754 | * velocity_mii_write - write MII data |
| 755 | * @regs: velocity registers |
| 756 | * @index: MII register index |
| 757 | * @data: 16bit data for the MII register |
| 758 | * |
| 759 | * Perform a single write to an MII 16bit register. Returns zero |
| 760 | * on success or -ETIMEDOUT if the PHY did not respond. |
| 761 | */ |
| 762 | static int velocity_mii_write(struct mac_regs __iomem *regs, u8 mii_addr, u16 data) |
| 763 | { |
| 764 | u16 ww; |
| 765 | |
| 766 | /* |
| 767 | * Disable MIICR_MAUTO, so that mii addr can be set normally |
| 768 | */ |
| 769 | safe_disable_mii_autopoll(regs); |
| 770 | |
| 771 | /* MII reg offset */ |
| 772 | writeb(mii_addr, ®s->MIIADR); |
| 773 | /* set MII data */ |
| 774 | writew(data, ®s->MIIDATA); |
| 775 | |
| 776 | /* turn on MIICR_WCMD */ |
| 777 | BYTE_REG_BITS_ON(MIICR_WCMD, ®s->MIICR); |
| 778 | |
| 779 | /* W_MAX_TIMEOUT is the timeout period */ |
| 780 | for (ww = 0; ww < W_MAX_TIMEOUT; ww++) { |
| 781 | udelay(5); |
| 782 | if (!(readb(®s->MIICR) & MIICR_WCMD)) |
| 783 | break; |
| 784 | } |
| 785 | enable_mii_autopoll(regs); |
| 786 | |
| 787 | if (ww == W_MAX_TIMEOUT) |
| 788 | return -ETIMEDOUT; |
| 789 | return 0; |
| 790 | } |
| 791 | |
| 792 | /** |
| 793 | * set_mii_flow_control - flow control setup |
| 794 | * @vptr: velocity interface |
| 795 | * |
| 796 | * Set up the flow control on this interface according to |
| 797 | * the supplied user/eeprom options. |
| 798 | */ |
| 799 | static void set_mii_flow_control(struct velocity_info *vptr) |
| 800 | { |
| 801 | /*Enable or Disable PAUSE in ANAR */ |
| 802 | switch (vptr->options.flow_cntl) { |
| 803 | case FLOW_CNTL_TX: |
| 804 | MII_REG_BITS_OFF(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs); |
| 805 | MII_REG_BITS_ON(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs); |
| 806 | break; |
| 807 | |
| 808 | case FLOW_CNTL_RX: |
| 809 | MII_REG_BITS_ON(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs); |
| 810 | MII_REG_BITS_ON(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs); |
| 811 | break; |
| 812 | |
| 813 | case FLOW_CNTL_TX_RX: |
| 814 | MII_REG_BITS_ON(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs); |
| 815 | MII_REG_BITS_ON(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs); |
| 816 | break; |
| 817 | |
| 818 | case FLOW_CNTL_DISABLE: |
| 819 | MII_REG_BITS_OFF(ANAR_PAUSE, MII_REG_ANAR, vptr->mac_regs); |
| 820 | MII_REG_BITS_OFF(ANAR_ASMDIR, MII_REG_ANAR, vptr->mac_regs); |
| 821 | break; |
| 822 | default: |
| 823 | break; |
| 824 | } |
| 825 | } |
| 826 | |
| 827 | /** |
| 828 | * mii_set_auto_on - autonegotiate on |
| 829 | * @vptr: velocity |
| 830 | * |
| 831 | * Enable autonegotation on this interface |
| 832 | */ |
| 833 | static void mii_set_auto_on(struct velocity_info *vptr) |
| 834 | { |
| 835 | if (MII_REG_BITS_IS_ON(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs)) |
| 836 | MII_REG_BITS_ON(BMCR_REAUTO, MII_REG_BMCR, vptr->mac_regs); |
| 837 | else |
| 838 | MII_REG_BITS_ON(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs); |
| 839 | } |
| 840 | |
| 841 | static u32 check_connection_type(struct mac_regs __iomem *regs) |
| 842 | { |
| 843 | u32 status = 0; |
| 844 | u8 PHYSR0; |
| 845 | u16 ANAR; |
| 846 | PHYSR0 = readb(®s->PHYSR0); |
| 847 | |
| 848 | /* |
| 849 | if (!(PHYSR0 & PHYSR0_LINKGD)) |
| 850 | status|=VELOCITY_LINK_FAIL; |
| 851 | */ |
| 852 | |
| 853 | if (PHYSR0 & PHYSR0_FDPX) |
| 854 | status |= VELOCITY_DUPLEX_FULL; |
| 855 | |
| 856 | if (PHYSR0 & PHYSR0_SPDG) |
| 857 | status |= VELOCITY_SPEED_1000; |
| 858 | else if (PHYSR0 & PHYSR0_SPD10) |
| 859 | status |= VELOCITY_SPEED_10; |
| 860 | else |
| 861 | status |= VELOCITY_SPEED_100; |
| 862 | |
| 863 | if (MII_REG_BITS_IS_ON(BMCR_AUTO, MII_REG_BMCR, regs)) { |
| 864 | velocity_mii_read(regs, MII_REG_ANAR, &ANAR); |
| 865 | if ((ANAR & (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10)) |
| 866 | == (ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10)) { |
| 867 | if (MII_REG_BITS_IS_ON(G1000CR_1000 | G1000CR_1000FD, MII_REG_G1000CR, regs)) |
| 868 | status |= VELOCITY_AUTONEG_ENABLE; |
| 869 | } |
| 870 | } |
| 871 | |
| 872 | return status; |
| 873 | } |
| 874 | |
| 875 | |
| 876 | |
| 877 | /** |
| 878 | * velocity_set_media_mode - set media mode |
| 879 | * @mii_status: old MII link state |
| 880 | * |
| 881 | * Check the media link state and configure the flow control |
| 882 | * PHY and also velocity hardware setup accordingly. In particular |
| 883 | * we need to set up CD polling and frame bursting. |
| 884 | */ |
| 885 | static int velocity_set_media_mode(struct velocity_info *vptr, u32 mii_status) |
| 886 | { |
| 887 | u32 curr_status; |
| 888 | struct mac_regs __iomem *regs = vptr->mac_regs; |
| 889 | |
| 890 | vptr->mii_status = mii_check_media_mode(vptr->mac_regs); |
| 891 | curr_status = vptr->mii_status & (~VELOCITY_LINK_FAIL); |
| 892 | |
| 893 | /* Set mii link status */ |
| 894 | set_mii_flow_control(vptr); |
| 895 | |
| 896 | /* |
| 897 | Check if new status is consisent with current status |
Joe Perches | 8e95a20 | 2009-12-03 07:58:21 +0000 | [diff] [blame] | 898 | if (((mii_status & curr_status) & VELOCITY_AUTONEG_ENABLE) || |
| 899 | (mii_status==curr_status)) { |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 900 | vptr->mii_status=mii_check_media_mode(vptr->mac_regs); |
| 901 | vptr->mii_status=check_connection_type(vptr->mac_regs); |
| 902 | VELOCITY_PRT(MSG_LEVEL_INFO, "Velocity link no change\n"); |
| 903 | return 0; |
| 904 | } |
| 905 | */ |
| 906 | |
| 907 | if (PHYID_GET_PHY_ID(vptr->phy_id) == PHYID_CICADA_CS8201) |
| 908 | MII_REG_BITS_ON(AUXCR_MDPPS, MII_REG_AUXCR, vptr->mac_regs); |
| 909 | |
| 910 | /* |
| 911 | * If connection type is AUTO |
| 912 | */ |
| 913 | if (mii_status & VELOCITY_AUTONEG_ENABLE) { |
| 914 | VELOCITY_PRT(MSG_LEVEL_INFO, "Velocity is AUTO mode\n"); |
| 915 | /* clear force MAC mode bit */ |
| 916 | BYTE_REG_BITS_OFF(CHIPGCR_FCMODE, ®s->CHIPGCR); |
| 917 | /* set duplex mode of MAC according to duplex mode of MII */ |
| 918 | MII_REG_BITS_ON(ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10, MII_REG_ANAR, vptr->mac_regs); |
| 919 | MII_REG_BITS_ON(G1000CR_1000FD | G1000CR_1000, MII_REG_G1000CR, vptr->mac_regs); |
| 920 | MII_REG_BITS_ON(BMCR_SPEED1G, MII_REG_BMCR, vptr->mac_regs); |
| 921 | |
| 922 | /* enable AUTO-NEGO mode */ |
| 923 | mii_set_auto_on(vptr); |
| 924 | } else { |
| 925 | u16 ANAR; |
| 926 | u8 CHIPGCR; |
| 927 | |
| 928 | /* |
| 929 | * 1. if it's 3119, disable frame bursting in halfduplex mode |
| 930 | * and enable it in fullduplex mode |
| 931 | * 2. set correct MII/GMII and half/full duplex mode in CHIPGCR |
| 932 | * 3. only enable CD heart beat counter in 10HD mode |
| 933 | */ |
| 934 | |
| 935 | /* set force MAC mode bit */ |
| 936 | BYTE_REG_BITS_ON(CHIPGCR_FCMODE, ®s->CHIPGCR); |
| 937 | |
| 938 | CHIPGCR = readb(®s->CHIPGCR); |
| 939 | CHIPGCR &= ~CHIPGCR_FCGMII; |
| 940 | |
| 941 | if (mii_status & VELOCITY_DUPLEX_FULL) { |
| 942 | CHIPGCR |= CHIPGCR_FCFDX; |
| 943 | writeb(CHIPGCR, ®s->CHIPGCR); |
| 944 | VELOCITY_PRT(MSG_LEVEL_INFO, "set Velocity to forced full mode\n"); |
| 945 | if (vptr->rev_id < REV_ID_VT3216_A0) |
| 946 | BYTE_REG_BITS_OFF(TCR_TB2BDIS, ®s->TCR); |
| 947 | } else { |
| 948 | CHIPGCR &= ~CHIPGCR_FCFDX; |
| 949 | VELOCITY_PRT(MSG_LEVEL_INFO, "set Velocity to forced half mode\n"); |
| 950 | writeb(CHIPGCR, ®s->CHIPGCR); |
| 951 | if (vptr->rev_id < REV_ID_VT3216_A0) |
| 952 | BYTE_REG_BITS_ON(TCR_TB2BDIS, ®s->TCR); |
| 953 | } |
| 954 | |
| 955 | MII_REG_BITS_OFF(G1000CR_1000FD | G1000CR_1000, MII_REG_G1000CR, vptr->mac_regs); |
| 956 | |
| 957 | if (!(mii_status & VELOCITY_DUPLEX_FULL) && (mii_status & VELOCITY_SPEED_10)) |
| 958 | BYTE_REG_BITS_OFF(TESTCFG_HBDIS, ®s->TESTCFG); |
| 959 | else |
| 960 | BYTE_REG_BITS_ON(TESTCFG_HBDIS, ®s->TESTCFG); |
| 961 | |
| 962 | /* MII_REG_BITS_OFF(BMCR_SPEED1G, MII_REG_BMCR, vptr->mac_regs); */ |
| 963 | velocity_mii_read(vptr->mac_regs, MII_REG_ANAR, &ANAR); |
| 964 | ANAR &= (~(ANAR_TXFD | ANAR_TX | ANAR_10FD | ANAR_10)); |
| 965 | if (mii_status & VELOCITY_SPEED_100) { |
| 966 | if (mii_status & VELOCITY_DUPLEX_FULL) |
| 967 | ANAR |= ANAR_TXFD; |
| 968 | else |
| 969 | ANAR |= ANAR_TX; |
| 970 | } else { |
| 971 | if (mii_status & VELOCITY_DUPLEX_FULL) |
| 972 | ANAR |= ANAR_10FD; |
| 973 | else |
| 974 | ANAR |= ANAR_10; |
| 975 | } |
| 976 | velocity_mii_write(vptr->mac_regs, MII_REG_ANAR, ANAR); |
| 977 | /* enable AUTO-NEGO mode */ |
| 978 | mii_set_auto_on(vptr); |
| 979 | /* MII_REG_BITS_ON(BMCR_AUTO, MII_REG_BMCR, vptr->mac_regs); */ |
| 980 | } |
| 981 | /* vptr->mii_status=mii_check_media_mode(vptr->mac_regs); */ |
| 982 | /* vptr->mii_status=check_connection_type(vptr->mac_regs); */ |
| 983 | return VELOCITY_LINK_CHANGE; |
| 984 | } |
| 985 | |
| 986 | /** |
| 987 | * velocity_print_link_status - link status reporting |
| 988 | * @vptr: velocity to report on |
| 989 | * |
| 990 | * Turn the link status of the velocity card into a kernel log |
| 991 | * description of the new link state, detailing speed and duplex |
| 992 | * status |
| 993 | */ |
| 994 | static void velocity_print_link_status(struct velocity_info *vptr) |
| 995 | { |
| 996 | |
| 997 | if (vptr->mii_status & VELOCITY_LINK_FAIL) { |
| 998 | VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: failed to detect cable link\n", vptr->dev->name); |
| 999 | } else if (vptr->options.spd_dpx == SPD_DPX_AUTO) { |
| 1000 | VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: Link auto-negotiation", vptr->dev->name); |
| 1001 | |
| 1002 | if (vptr->mii_status & VELOCITY_SPEED_1000) |
| 1003 | VELOCITY_PRT(MSG_LEVEL_INFO, " speed 1000M bps"); |
| 1004 | else if (vptr->mii_status & VELOCITY_SPEED_100) |
| 1005 | VELOCITY_PRT(MSG_LEVEL_INFO, " speed 100M bps"); |
| 1006 | else |
| 1007 | VELOCITY_PRT(MSG_LEVEL_INFO, " speed 10M bps"); |
| 1008 | |
| 1009 | if (vptr->mii_status & VELOCITY_DUPLEX_FULL) |
| 1010 | VELOCITY_PRT(MSG_LEVEL_INFO, " full duplex\n"); |
| 1011 | else |
| 1012 | VELOCITY_PRT(MSG_LEVEL_INFO, " half duplex\n"); |
| 1013 | } else { |
| 1014 | VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: Link forced", vptr->dev->name); |
| 1015 | switch (vptr->options.spd_dpx) { |
| 1016 | case SPD_DPX_100_HALF: |
| 1017 | VELOCITY_PRT(MSG_LEVEL_INFO, " speed 100M bps half duplex\n"); |
| 1018 | break; |
| 1019 | case SPD_DPX_100_FULL: |
| 1020 | VELOCITY_PRT(MSG_LEVEL_INFO, " speed 100M bps full duplex\n"); |
| 1021 | break; |
| 1022 | case SPD_DPX_10_HALF: |
| 1023 | VELOCITY_PRT(MSG_LEVEL_INFO, " speed 10M bps half duplex\n"); |
| 1024 | break; |
| 1025 | case SPD_DPX_10_FULL: |
| 1026 | VELOCITY_PRT(MSG_LEVEL_INFO, " speed 10M bps full duplex\n"); |
| 1027 | break; |
| 1028 | default: |
| 1029 | break; |
| 1030 | } |
| 1031 | } |
| 1032 | } |
| 1033 | |
| 1034 | /** |
| 1035 | * enable_flow_control_ability - flow control |
| 1036 | * @vptr: veloity to configure |
| 1037 | * |
| 1038 | * Set up flow control according to the flow control options |
| 1039 | * determined by the eeprom/configuration. |
| 1040 | */ |
| 1041 | static void enable_flow_control_ability(struct velocity_info *vptr) |
| 1042 | { |
| 1043 | |
| 1044 | struct mac_regs __iomem *regs = vptr->mac_regs; |
| 1045 | |
| 1046 | switch (vptr->options.flow_cntl) { |
| 1047 | |
| 1048 | case FLOW_CNTL_DEFAULT: |
| 1049 | if (BYTE_REG_BITS_IS_ON(PHYSR0_RXFLC, ®s->PHYSR0)) |
| 1050 | writel(CR0_FDXRFCEN, ®s->CR0Set); |
| 1051 | else |
| 1052 | writel(CR0_FDXRFCEN, ®s->CR0Clr); |
| 1053 | |
| 1054 | if (BYTE_REG_BITS_IS_ON(PHYSR0_TXFLC, ®s->PHYSR0)) |
| 1055 | writel(CR0_FDXTFCEN, ®s->CR0Set); |
| 1056 | else |
| 1057 | writel(CR0_FDXTFCEN, ®s->CR0Clr); |
| 1058 | break; |
| 1059 | |
| 1060 | case FLOW_CNTL_TX: |
| 1061 | writel(CR0_FDXTFCEN, ®s->CR0Set); |
| 1062 | writel(CR0_FDXRFCEN, ®s->CR0Clr); |
| 1063 | break; |
| 1064 | |
| 1065 | case FLOW_CNTL_RX: |
| 1066 | writel(CR0_FDXRFCEN, ®s->CR0Set); |
| 1067 | writel(CR0_FDXTFCEN, ®s->CR0Clr); |
| 1068 | break; |
| 1069 | |
| 1070 | case FLOW_CNTL_TX_RX: |
| 1071 | writel(CR0_FDXTFCEN, ®s->CR0Set); |
| 1072 | writel(CR0_FDXRFCEN, ®s->CR0Set); |
| 1073 | break; |
| 1074 | |
| 1075 | case FLOW_CNTL_DISABLE: |
| 1076 | writel(CR0_FDXRFCEN, ®s->CR0Clr); |
| 1077 | writel(CR0_FDXTFCEN, ®s->CR0Clr); |
| 1078 | break; |
| 1079 | |
| 1080 | default: |
| 1081 | break; |
| 1082 | } |
| 1083 | |
| 1084 | } |
| 1085 | |
| 1086 | /** |
| 1087 | * velocity_soft_reset - soft reset |
| 1088 | * @vptr: velocity to reset |
| 1089 | * |
| 1090 | * Kick off a soft reset of the velocity adapter and then poll |
| 1091 | * until the reset sequence has completed before returning. |
| 1092 | */ |
| 1093 | static int velocity_soft_reset(struct velocity_info *vptr) |
| 1094 | { |
| 1095 | struct mac_regs __iomem *regs = vptr->mac_regs; |
| 1096 | int i = 0; |
| 1097 | |
| 1098 | writel(CR0_SFRST, ®s->CR0Set); |
| 1099 | |
| 1100 | for (i = 0; i < W_MAX_TIMEOUT; i++) { |
| 1101 | udelay(5); |
| 1102 | if (!DWORD_REG_BITS_IS_ON(CR0_SFRST, ®s->CR0Set)) |
| 1103 | break; |
| 1104 | } |
| 1105 | |
| 1106 | if (i == W_MAX_TIMEOUT) { |
| 1107 | writel(CR0_FORSRST, ®s->CR0Set); |
| 1108 | /* FIXME: PCI POSTING */ |
| 1109 | /* delay 2ms */ |
| 1110 | mdelay(2); |
| 1111 | } |
| 1112 | return 0; |
| 1113 | } |
| 1114 | |
| 1115 | /** |
| 1116 | * velocity_set_multi - filter list change callback |
| 1117 | * @dev: network device |
| 1118 | * |
| 1119 | * Called by the network layer when the filter lists need to change |
| 1120 | * for a velocity adapter. Reload the CAMs with the new address |
| 1121 | * filter ruleset. |
| 1122 | */ |
| 1123 | static void velocity_set_multi(struct net_device *dev) |
| 1124 | { |
| 1125 | struct velocity_info *vptr = netdev_priv(dev); |
| 1126 | struct mac_regs __iomem *regs = vptr->mac_regs; |
| 1127 | u8 rx_mode; |
| 1128 | int i; |
| 1129 | struct dev_mc_list *mclist; |
| 1130 | |
| 1131 | if (dev->flags & IFF_PROMISC) { /* Set promiscuous. */ |
| 1132 | writel(0xffffffff, ®s->MARCAM[0]); |
| 1133 | writel(0xffffffff, ®s->MARCAM[4]); |
| 1134 | rx_mode = (RCR_AM | RCR_AB | RCR_PROM); |
Jiri Pirko | 4cd24ea | 2010-02-08 04:30:35 +0000 | [diff] [blame] | 1135 | } else if ((netdev_mc_count(dev) > vptr->multicast_limit) || |
Joe Perches | 8e95a20 | 2009-12-03 07:58:21 +0000 | [diff] [blame] | 1136 | (dev->flags & IFF_ALLMULTI)) { |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 1137 | writel(0xffffffff, ®s->MARCAM[0]); |
| 1138 | writel(0xffffffff, ®s->MARCAM[4]); |
| 1139 | rx_mode = (RCR_AM | RCR_AB); |
| 1140 | } else { |
| 1141 | int offset = MCAM_SIZE - vptr->multicast_limit; |
| 1142 | mac_get_cam_mask(regs, vptr->mCAMmask); |
| 1143 | |
Jiri Pirko | 567ec87 | 2010-02-23 23:17:07 +0000 | [diff] [blame] | 1144 | i = 0; |
| 1145 | netdev_for_each_mc_addr(mclist, dev) { |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 1146 | mac_set_cam(regs, i + offset, mclist->dmi_addr); |
| 1147 | vptr->mCAMmask[(offset + i) / 8] |= 1 << ((offset + i) & 7); |
Jiri Pirko | 567ec87 | 2010-02-23 23:17:07 +0000 | [diff] [blame] | 1148 | i++; |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 1149 | } |
| 1150 | |
| 1151 | mac_set_cam_mask(regs, vptr->mCAMmask); |
| 1152 | rx_mode = RCR_AM | RCR_AB | RCR_AP; |
| 1153 | } |
| 1154 | if (dev->mtu > 1500) |
| 1155 | rx_mode |= RCR_AL; |
| 1156 | |
| 1157 | BYTE_REG_BITS_ON(rx_mode, ®s->RCR); |
| 1158 | |
| 1159 | } |
| 1160 | |
| 1161 | /* |
| 1162 | * MII access , media link mode setting functions |
| 1163 | */ |
| 1164 | |
| 1165 | /** |
| 1166 | * mii_init - set up MII |
| 1167 | * @vptr: velocity adapter |
| 1168 | * @mii_status: links tatus |
| 1169 | * |
| 1170 | * Set up the PHY for the current link state. |
| 1171 | */ |
| 1172 | static void mii_init(struct velocity_info *vptr, u32 mii_status) |
| 1173 | { |
| 1174 | u16 BMCR; |
| 1175 | |
| 1176 | switch (PHYID_GET_PHY_ID(vptr->phy_id)) { |
| 1177 | case PHYID_CICADA_CS8201: |
| 1178 | /* |
| 1179 | * Reset to hardware default |
| 1180 | */ |
| 1181 | MII_REG_BITS_OFF((ANAR_ASMDIR | ANAR_PAUSE), MII_REG_ANAR, vptr->mac_regs); |
| 1182 | /* |
| 1183 | * Turn on ECHODIS bit in NWay-forced full mode and turn it |
| 1184 | * off it in NWay-forced half mode for NWay-forced v.s. |
| 1185 | * legacy-forced issue. |
| 1186 | */ |
| 1187 | if (vptr->mii_status & VELOCITY_DUPLEX_FULL) |
| 1188 | MII_REG_BITS_ON(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs); |
| 1189 | else |
| 1190 | MII_REG_BITS_OFF(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs); |
| 1191 | /* |
| 1192 | * Turn on Link/Activity LED enable bit for CIS8201 |
| 1193 | */ |
| 1194 | MII_REG_BITS_ON(PLED_LALBE, MII_REG_PLED, vptr->mac_regs); |
| 1195 | break; |
| 1196 | case PHYID_VT3216_32BIT: |
| 1197 | case PHYID_VT3216_64BIT: |
| 1198 | /* |
| 1199 | * Reset to hardware default |
| 1200 | */ |
| 1201 | MII_REG_BITS_ON((ANAR_ASMDIR | ANAR_PAUSE), MII_REG_ANAR, vptr->mac_regs); |
| 1202 | /* |
| 1203 | * Turn on ECHODIS bit in NWay-forced full mode and turn it |
| 1204 | * off it in NWay-forced half mode for NWay-forced v.s. |
| 1205 | * legacy-forced issue |
| 1206 | */ |
| 1207 | if (vptr->mii_status & VELOCITY_DUPLEX_FULL) |
| 1208 | MII_REG_BITS_ON(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs); |
| 1209 | else |
| 1210 | MII_REG_BITS_OFF(TCSR_ECHODIS, MII_REG_TCSR, vptr->mac_regs); |
| 1211 | break; |
| 1212 | |
| 1213 | case PHYID_MARVELL_1000: |
| 1214 | case PHYID_MARVELL_1000S: |
| 1215 | /* |
| 1216 | * Assert CRS on Transmit |
| 1217 | */ |
| 1218 | MII_REG_BITS_ON(PSCR_ACRSTX, MII_REG_PSCR, vptr->mac_regs); |
| 1219 | /* |
| 1220 | * Reset to hardware default |
| 1221 | */ |
| 1222 | MII_REG_BITS_ON((ANAR_ASMDIR | ANAR_PAUSE), MII_REG_ANAR, vptr->mac_regs); |
| 1223 | break; |
| 1224 | default: |
| 1225 | ; |
| 1226 | } |
| 1227 | velocity_mii_read(vptr->mac_regs, MII_REG_BMCR, &BMCR); |
| 1228 | if (BMCR & BMCR_ISO) { |
| 1229 | BMCR &= ~BMCR_ISO; |
| 1230 | velocity_mii_write(vptr->mac_regs, MII_REG_BMCR, BMCR); |
| 1231 | } |
| 1232 | } |
| 1233 | |
Simon Kagstrom | 6dfc4b9 | 2009-11-25 22:10:12 +0000 | [diff] [blame] | 1234 | /** |
| 1235 | * setup_queue_timers - Setup interrupt timers |
| 1236 | * |
| 1237 | * Setup interrupt frequency during suppression (timeout if the frame |
| 1238 | * count isn't filled). |
| 1239 | */ |
| 1240 | static void setup_queue_timers(struct velocity_info *vptr) |
| 1241 | { |
| 1242 | /* Only for newer revisions */ |
| 1243 | if (vptr->rev_id >= REV_ID_VT3216_A0) { |
| 1244 | u8 txqueue_timer = 0; |
| 1245 | u8 rxqueue_timer = 0; |
| 1246 | |
| 1247 | if (vptr->mii_status & (VELOCITY_SPEED_1000 | |
| 1248 | VELOCITY_SPEED_100)) { |
| 1249 | txqueue_timer = vptr->options.txqueue_timer; |
| 1250 | rxqueue_timer = vptr->options.rxqueue_timer; |
| 1251 | } |
| 1252 | |
| 1253 | writeb(txqueue_timer, &vptr->mac_regs->TQETMR); |
| 1254 | writeb(rxqueue_timer, &vptr->mac_regs->RQETMR); |
| 1255 | } |
| 1256 | } |
| 1257 | /** |
| 1258 | * setup_adaptive_interrupts - Setup interrupt suppression |
| 1259 | * |
| 1260 | * @vptr velocity adapter |
| 1261 | * |
| 1262 | * The velocity is able to suppress interrupt during high interrupt load. |
| 1263 | * This function turns on that feature. |
| 1264 | */ |
| 1265 | static void setup_adaptive_interrupts(struct velocity_info *vptr) |
| 1266 | { |
| 1267 | struct mac_regs __iomem *regs = vptr->mac_regs; |
| 1268 | u16 tx_intsup = vptr->options.tx_intsup; |
| 1269 | u16 rx_intsup = vptr->options.rx_intsup; |
| 1270 | |
| 1271 | /* Setup default interrupt mask (will be changed below) */ |
| 1272 | vptr->int_mask = INT_MASK_DEF; |
| 1273 | |
| 1274 | /* Set Tx Interrupt Suppression Threshold */ |
| 1275 | writeb(CAMCR_PS0, ®s->CAMCR); |
| 1276 | if (tx_intsup != 0) { |
| 1277 | vptr->int_mask &= ~(ISR_PTXI | ISR_PTX0I | ISR_PTX1I | |
| 1278 | ISR_PTX2I | ISR_PTX3I); |
| 1279 | writew(tx_intsup, ®s->ISRCTL); |
| 1280 | } else |
| 1281 | writew(ISRCTL_TSUPDIS, ®s->ISRCTL); |
| 1282 | |
| 1283 | /* Set Rx Interrupt Suppression Threshold */ |
| 1284 | writeb(CAMCR_PS1, ®s->CAMCR); |
| 1285 | if (rx_intsup != 0) { |
| 1286 | vptr->int_mask &= ~ISR_PRXI; |
| 1287 | writew(rx_intsup, ®s->ISRCTL); |
| 1288 | } else |
| 1289 | writew(ISRCTL_RSUPDIS, ®s->ISRCTL); |
| 1290 | |
| 1291 | /* Select page to interrupt hold timer */ |
| 1292 | writeb(0, ®s->CAMCR); |
| 1293 | } |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 1294 | |
| 1295 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1296 | * velocity_init_registers - initialise MAC registers |
| 1297 | * @vptr: velocity to init |
| 1298 | * @type: type of initialisation (hot or cold) |
| 1299 | * |
| 1300 | * Initialise the MAC on a reset or on first set up on the |
| 1301 | * hardware. |
| 1302 | */ |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1303 | static void velocity_init_registers(struct velocity_info *vptr, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1304 | enum velocity_init_type type) |
| 1305 | { |
Dave Jones | c406740 | 2009-07-20 17:35:21 +0000 | [diff] [blame] | 1306 | struct mac_regs __iomem *regs = vptr->mac_regs; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1307 | int i, mii_status; |
| 1308 | |
| 1309 | mac_wol_reset(regs); |
| 1310 | |
| 1311 | switch (type) { |
| 1312 | case VELOCITY_INIT_RESET: |
| 1313 | case VELOCITY_INIT_WOL: |
| 1314 | |
| 1315 | netif_stop_queue(vptr->dev); |
| 1316 | |
| 1317 | /* |
| 1318 | * Reset RX to prevent RX pointer not on the 4X location |
| 1319 | */ |
| 1320 | velocity_rx_reset(vptr); |
| 1321 | mac_rx_queue_run(regs); |
| 1322 | mac_rx_queue_wake(regs); |
| 1323 | |
| 1324 | mii_status = velocity_get_opt_media_mode(vptr); |
| 1325 | if (velocity_set_media_mode(vptr, mii_status) != VELOCITY_LINK_CHANGE) { |
| 1326 | velocity_print_link_status(vptr); |
| 1327 | if (!(vptr->mii_status & VELOCITY_LINK_FAIL)) |
| 1328 | netif_wake_queue(vptr->dev); |
| 1329 | } |
| 1330 | |
| 1331 | enable_flow_control_ability(vptr); |
| 1332 | |
| 1333 | mac_clear_isr(regs); |
| 1334 | writel(CR0_STOP, ®s->CR0Clr); |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 1335 | writel((CR0_DPOLL | CR0_TXON | CR0_RXON | CR0_STRT), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1336 | ®s->CR0Set); |
| 1337 | |
| 1338 | break; |
| 1339 | |
| 1340 | case VELOCITY_INIT_COLD: |
| 1341 | default: |
| 1342 | /* |
| 1343 | * Do reset |
| 1344 | */ |
| 1345 | velocity_soft_reset(vptr); |
| 1346 | mdelay(5); |
| 1347 | |
| 1348 | mac_eeprom_reload(regs); |
Dave Jones | c406740 | 2009-07-20 17:35:21 +0000 | [diff] [blame] | 1349 | for (i = 0; i < 6; i++) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1350 | writeb(vptr->dev->dev_addr[i], &(regs->PAR[i])); |
Dave Jones | c406740 | 2009-07-20 17:35:21 +0000 | [diff] [blame] | 1351 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1352 | /* |
| 1353 | * clear Pre_ACPI bit. |
| 1354 | */ |
| 1355 | BYTE_REG_BITS_OFF(CFGA_PACPI, &(regs->CFGA)); |
| 1356 | mac_set_rx_thresh(regs, vptr->options.rx_thresh); |
| 1357 | mac_set_dma_length(regs, vptr->options.DMA_length); |
| 1358 | |
| 1359 | writeb(WOLCFG_SAM | WOLCFG_SAB, ®s->WOLCFGSet); |
| 1360 | /* |
| 1361 | * Back off algorithm use original IEEE standard |
| 1362 | */ |
| 1363 | BYTE_REG_BITS_SET(CFGB_OFSET, (CFGB_CRANDOM | CFGB_CAP | CFGB_MBA | CFGB_BAKOPT), ®s->CFGB); |
| 1364 | |
| 1365 | /* |
| 1366 | * Init CAM filter |
| 1367 | */ |
| 1368 | velocity_init_cam_filter(vptr); |
| 1369 | |
| 1370 | /* |
| 1371 | * Set packet filter: Receive directed and broadcast address |
| 1372 | */ |
| 1373 | velocity_set_multi(vptr->dev); |
| 1374 | |
| 1375 | /* |
| 1376 | * Enable MII auto-polling |
| 1377 | */ |
| 1378 | enable_mii_autopoll(regs); |
| 1379 | |
Simon Kagstrom | 6dfc4b9 | 2009-11-25 22:10:12 +0000 | [diff] [blame] | 1380 | setup_adaptive_interrupts(vptr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1381 | |
Francois Romieu | 0fe9f15 | 2008-07-31 22:10:10 +0200 | [diff] [blame] | 1382 | writel(vptr->rx.pool_dma, ®s->RDBaseLo); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1383 | writew(vptr->options.numrx - 1, ®s->RDCSize); |
| 1384 | mac_rx_queue_run(regs); |
| 1385 | mac_rx_queue_wake(regs); |
| 1386 | |
| 1387 | writew(vptr->options.numtx - 1, ®s->TDCSize); |
| 1388 | |
Francois Romieu | 0fe9f15 | 2008-07-31 22:10:10 +0200 | [diff] [blame] | 1389 | for (i = 0; i < vptr->tx.numq; i++) { |
| 1390 | writel(vptr->tx.pool_dma[i], ®s->TDBaseLo[i]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1391 | mac_tx_queue_run(regs, i); |
| 1392 | } |
| 1393 | |
| 1394 | init_flow_control_register(vptr); |
| 1395 | |
| 1396 | writel(CR0_STOP, ®s->CR0Clr); |
| 1397 | writel((CR0_DPOLL | CR0_TXON | CR0_RXON | CR0_STRT), ®s->CR0Set); |
| 1398 | |
| 1399 | mii_status = velocity_get_opt_media_mode(vptr); |
| 1400 | netif_stop_queue(vptr->dev); |
| 1401 | |
| 1402 | mii_init(vptr, mii_status); |
| 1403 | |
| 1404 | if (velocity_set_media_mode(vptr, mii_status) != VELOCITY_LINK_CHANGE) { |
| 1405 | velocity_print_link_status(vptr); |
| 1406 | if (!(vptr->mii_status & VELOCITY_LINK_FAIL)) |
| 1407 | netif_wake_queue(vptr->dev); |
| 1408 | } |
| 1409 | |
| 1410 | enable_flow_control_ability(vptr); |
| 1411 | mac_hw_mibs_init(regs); |
| 1412 | mac_write_int_mask(vptr->int_mask, regs); |
| 1413 | mac_clear_isr(regs); |
| 1414 | |
| 1415 | } |
| 1416 | } |
| 1417 | |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 1418 | static void velocity_give_many_rx_descs(struct velocity_info *vptr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1419 | { |
Dave Jones | c406740 | 2009-07-20 17:35:21 +0000 | [diff] [blame] | 1420 | struct mac_regs __iomem *regs = vptr->mac_regs; |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 1421 | int avail, dirty, unusable; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1422 | |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 1423 | /* |
| 1424 | * RD number must be equal to 4X per hardware spec |
| 1425 | * (programming guide rev 1.20, p.13) |
| 1426 | */ |
| 1427 | if (vptr->rx.filled < 4) |
| 1428 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1429 | |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 1430 | wmb(); |
| 1431 | |
| 1432 | unusable = vptr->rx.filled & 0x0003; |
| 1433 | dirty = vptr->rx.dirty - unusable; |
| 1434 | for (avail = vptr->rx.filled & 0xfffc; avail; avail--) { |
| 1435 | dirty = (dirty > 0) ? dirty - 1 : vptr->options.numrx - 1; |
| 1436 | vptr->rx.ring[dirty].rdesc0.len |= OWNED_BY_NIC; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1437 | } |
| 1438 | |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 1439 | writew(vptr->rx.filled & 0xfffc, ®s->RBRDU); |
| 1440 | vptr->rx.filled = unusable; |
| 1441 | } |
| 1442 | |
| 1443 | /** |
| 1444 | * velocity_init_dma_rings - set up DMA rings |
| 1445 | * @vptr: Velocity to set up |
| 1446 | * |
| 1447 | * Allocate PCI mapped DMA rings for the receive and transmit layer |
| 1448 | * to use. |
| 1449 | */ |
| 1450 | static int velocity_init_dma_rings(struct velocity_info *vptr) |
| 1451 | { |
| 1452 | struct velocity_opt *opt = &vptr->options; |
| 1453 | const unsigned int rx_ring_size = opt->numrx * sizeof(struct rx_desc); |
| 1454 | const unsigned int tx_ring_size = opt->numtx * sizeof(struct tx_desc); |
| 1455 | struct pci_dev *pdev = vptr->pdev; |
| 1456 | dma_addr_t pool_dma; |
| 1457 | void *pool; |
| 1458 | unsigned int i; |
| 1459 | |
| 1460 | /* |
| 1461 | * Allocate all RD/TD rings a single pool. |
| 1462 | * |
| 1463 | * pci_alloc_consistent() fulfills the requirement for 64 bytes |
| 1464 | * alignment |
| 1465 | */ |
| 1466 | pool = pci_alloc_consistent(pdev, tx_ring_size * vptr->tx.numq + |
| 1467 | rx_ring_size, &pool_dma); |
| 1468 | if (!pool) { |
| 1469 | dev_err(&pdev->dev, "%s : DMA memory allocation failed.\n", |
| 1470 | vptr->dev->name); |
| 1471 | return -ENOMEM; |
| 1472 | } |
| 1473 | |
| 1474 | vptr->rx.ring = pool; |
| 1475 | vptr->rx.pool_dma = pool_dma; |
| 1476 | |
| 1477 | pool += rx_ring_size; |
| 1478 | pool_dma += rx_ring_size; |
| 1479 | |
| 1480 | for (i = 0; i < vptr->tx.numq; i++) { |
| 1481 | vptr->tx.rings[i] = pool; |
| 1482 | vptr->tx.pool_dma[i] = pool_dma; |
| 1483 | pool += tx_ring_size; |
| 1484 | pool_dma += tx_ring_size; |
| 1485 | } |
| 1486 | |
| 1487 | return 0; |
| 1488 | } |
| 1489 | |
| 1490 | static void velocity_set_rxbufsize(struct velocity_info *vptr, int mtu) |
| 1491 | { |
| 1492 | vptr->rx.buf_sz = (mtu <= ETH_DATA_LEN) ? PKT_BUF_SZ : mtu + 32; |
| 1493 | } |
| 1494 | |
| 1495 | /** |
| 1496 | * velocity_alloc_rx_buf - allocate aligned receive buffer |
| 1497 | * @vptr: velocity |
| 1498 | * @idx: ring index |
| 1499 | * |
| 1500 | * Allocate a new full sized buffer for the reception of a frame and |
| 1501 | * map it into PCI space for the hardware to use. The hardware |
| 1502 | * requires *64* byte alignment of the buffer which makes life |
| 1503 | * less fun than would be ideal. |
| 1504 | */ |
| 1505 | static int velocity_alloc_rx_buf(struct velocity_info *vptr, int idx) |
| 1506 | { |
| 1507 | struct rx_desc *rd = &(vptr->rx.ring[idx]); |
| 1508 | struct velocity_rd_info *rd_info = &(vptr->rx.info[idx]); |
| 1509 | |
| 1510 | rd_info->skb = dev_alloc_skb(vptr->rx.buf_sz + 64); |
| 1511 | if (rd_info->skb == NULL) |
| 1512 | return -ENOMEM; |
| 1513 | |
| 1514 | /* |
| 1515 | * Do the gymnastics to get the buffer head for data at |
| 1516 | * 64byte alignment. |
| 1517 | */ |
Simon Kagstrom | da95b2d | 2009-11-25 22:09:53 +0000 | [diff] [blame] | 1518 | skb_reserve(rd_info->skb, |
| 1519 | 64 - ((unsigned long) rd_info->skb->data & 63)); |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 1520 | rd_info->skb_dma = pci_map_single(vptr->pdev, rd_info->skb->data, |
| 1521 | vptr->rx.buf_sz, PCI_DMA_FROMDEVICE); |
| 1522 | |
| 1523 | /* |
| 1524 | * Fill in the descriptor to match |
| 1525 | */ |
| 1526 | |
| 1527 | *((u32 *) & (rd->rdesc0)) = 0; |
| 1528 | rd->size = cpu_to_le16(vptr->rx.buf_sz) | RX_INTEN; |
| 1529 | rd->pa_low = cpu_to_le32(rd_info->skb_dma); |
| 1530 | rd->pa_high = 0; |
| 1531 | return 0; |
| 1532 | } |
| 1533 | |
| 1534 | |
| 1535 | static int velocity_rx_refill(struct velocity_info *vptr) |
| 1536 | { |
| 1537 | int dirty = vptr->rx.dirty, done = 0; |
| 1538 | |
| 1539 | do { |
| 1540 | struct rx_desc *rd = vptr->rx.ring + dirty; |
| 1541 | |
| 1542 | /* Fine for an all zero Rx desc at init time as well */ |
| 1543 | if (rd->rdesc0.len & OWNED_BY_NIC) |
| 1544 | break; |
| 1545 | |
| 1546 | if (!vptr->rx.info[dirty].skb) { |
| 1547 | if (velocity_alloc_rx_buf(vptr, dirty) < 0) |
| 1548 | break; |
| 1549 | } |
| 1550 | done++; |
| 1551 | dirty = (dirty < vptr->options.numrx - 1) ? dirty + 1 : 0; |
| 1552 | } while (dirty != vptr->rx.curr); |
| 1553 | |
| 1554 | if (done) { |
| 1555 | vptr->rx.dirty = dirty; |
| 1556 | vptr->rx.filled += done; |
| 1557 | } |
| 1558 | |
| 1559 | return done; |
| 1560 | } |
| 1561 | |
| 1562 | /** |
| 1563 | * velocity_free_rd_ring - free receive ring |
| 1564 | * @vptr: velocity to clean up |
| 1565 | * |
| 1566 | * Free the receive buffers for each ring slot and any |
| 1567 | * attached socket buffers that need to go away. |
| 1568 | */ |
| 1569 | static void velocity_free_rd_ring(struct velocity_info *vptr) |
| 1570 | { |
| 1571 | int i; |
| 1572 | |
| 1573 | if (vptr->rx.info == NULL) |
| 1574 | return; |
| 1575 | |
| 1576 | for (i = 0; i < vptr->options.numrx; i++) { |
| 1577 | struct velocity_rd_info *rd_info = &(vptr->rx.info[i]); |
| 1578 | struct rx_desc *rd = vptr->rx.ring + i; |
| 1579 | |
| 1580 | memset(rd, 0, sizeof(*rd)); |
| 1581 | |
| 1582 | if (!rd_info->skb) |
| 1583 | continue; |
| 1584 | pci_unmap_single(vptr->pdev, rd_info->skb_dma, vptr->rx.buf_sz, |
| 1585 | PCI_DMA_FROMDEVICE); |
| 1586 | rd_info->skb_dma = 0; |
| 1587 | |
| 1588 | dev_kfree_skb(rd_info->skb); |
| 1589 | rd_info->skb = NULL; |
| 1590 | } |
| 1591 | |
| 1592 | kfree(vptr->rx.info); |
| 1593 | vptr->rx.info = NULL; |
| 1594 | } |
| 1595 | |
| 1596 | |
| 1597 | |
| 1598 | /** |
| 1599 | * velocity_init_rd_ring - set up receive ring |
| 1600 | * @vptr: velocity to configure |
| 1601 | * |
| 1602 | * Allocate and set up the receive buffers for each ring slot and |
| 1603 | * assign them to the network adapter. |
| 1604 | */ |
| 1605 | static int velocity_init_rd_ring(struct velocity_info *vptr) |
| 1606 | { |
| 1607 | int ret = -ENOMEM; |
| 1608 | |
| 1609 | vptr->rx.info = kcalloc(vptr->options.numrx, |
| 1610 | sizeof(struct velocity_rd_info), GFP_KERNEL); |
| 1611 | if (!vptr->rx.info) |
| 1612 | goto out; |
| 1613 | |
| 1614 | velocity_init_rx_ring_indexes(vptr); |
| 1615 | |
| 1616 | if (velocity_rx_refill(vptr) != vptr->options.numrx) { |
| 1617 | VELOCITY_PRT(MSG_LEVEL_ERR, KERN_ERR |
| 1618 | "%s: failed to allocate RX buffer.\n", vptr->dev->name); |
| 1619 | velocity_free_rd_ring(vptr); |
| 1620 | goto out; |
| 1621 | } |
| 1622 | |
| 1623 | ret = 0; |
| 1624 | out: |
| 1625 | return ret; |
| 1626 | } |
| 1627 | |
| 1628 | /** |
| 1629 | * velocity_init_td_ring - set up transmit ring |
| 1630 | * @vptr: velocity |
| 1631 | * |
| 1632 | * Set up the transmit ring and chain the ring pointers together. |
| 1633 | * Returns zero on success or a negative posix errno code for |
| 1634 | * failure. |
| 1635 | */ |
| 1636 | static int velocity_init_td_ring(struct velocity_info *vptr) |
| 1637 | { |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 1638 | int j; |
| 1639 | |
| 1640 | /* Init the TD ring entries */ |
| 1641 | for (j = 0; j < vptr->tx.numq; j++) { |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 1642 | |
| 1643 | vptr->tx.infos[j] = kcalloc(vptr->options.numtx, |
| 1644 | sizeof(struct velocity_td_info), |
| 1645 | GFP_KERNEL); |
| 1646 | if (!vptr->tx.infos[j]) { |
| 1647 | while (--j >= 0) |
| 1648 | kfree(vptr->tx.infos[j]); |
| 1649 | return -ENOMEM; |
| 1650 | } |
| 1651 | |
| 1652 | vptr->tx.tail[j] = vptr->tx.curr[j] = vptr->tx.used[j] = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1653 | } |
| 1654 | return 0; |
| 1655 | } |
| 1656 | |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 1657 | /** |
| 1658 | * velocity_free_dma_rings - free PCI ring pointers |
| 1659 | * @vptr: Velocity to free from |
| 1660 | * |
| 1661 | * Clean up the PCI ring buffers allocated to this velocity. |
| 1662 | */ |
| 1663 | static void velocity_free_dma_rings(struct velocity_info *vptr) |
| 1664 | { |
| 1665 | const int size = vptr->options.numrx * sizeof(struct rx_desc) + |
| 1666 | vptr->options.numtx * sizeof(struct tx_desc) * vptr->tx.numq; |
| 1667 | |
| 1668 | pci_free_consistent(vptr->pdev, size, vptr->rx.ring, vptr->rx.pool_dma); |
| 1669 | } |
| 1670 | |
| 1671 | |
| 1672 | static int velocity_init_rings(struct velocity_info *vptr, int mtu) |
| 1673 | { |
| 1674 | int ret; |
| 1675 | |
| 1676 | velocity_set_rxbufsize(vptr, mtu); |
| 1677 | |
| 1678 | ret = velocity_init_dma_rings(vptr); |
| 1679 | if (ret < 0) |
| 1680 | goto out; |
| 1681 | |
| 1682 | ret = velocity_init_rd_ring(vptr); |
| 1683 | if (ret < 0) |
| 1684 | goto err_free_dma_rings_0; |
| 1685 | |
| 1686 | ret = velocity_init_td_ring(vptr); |
| 1687 | if (ret < 0) |
| 1688 | goto err_free_rd_ring_1; |
| 1689 | out: |
| 1690 | return ret; |
| 1691 | |
| 1692 | err_free_rd_ring_1: |
| 1693 | velocity_free_rd_ring(vptr); |
| 1694 | err_free_dma_rings_0: |
| 1695 | velocity_free_dma_rings(vptr); |
| 1696 | goto out; |
| 1697 | } |
| 1698 | |
| 1699 | /** |
| 1700 | * velocity_free_tx_buf - free transmit buffer |
| 1701 | * @vptr: velocity |
| 1702 | * @tdinfo: buffer |
| 1703 | * |
| 1704 | * Release an transmit buffer. If the buffer was preallocated then |
| 1705 | * recycle it, if not then unmap the buffer. |
| 1706 | */ |
Simon Kagstrom | c79992f | 2009-11-25 22:10:43 +0000 | [diff] [blame] | 1707 | static void velocity_free_tx_buf(struct velocity_info *vptr, |
| 1708 | struct velocity_td_info *tdinfo, struct tx_desc *td) |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 1709 | { |
| 1710 | struct sk_buff *skb = tdinfo->skb; |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 1711 | |
| 1712 | /* |
| 1713 | * Don't unmap the pre-allocated tx_bufs |
| 1714 | */ |
| 1715 | if (tdinfo->skb_dma) { |
Simon Kagstrom | c79992f | 2009-11-25 22:10:43 +0000 | [diff] [blame] | 1716 | int i; |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 1717 | |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 1718 | for (i = 0; i < tdinfo->nskb_dma; i++) { |
Simon Kagstrom | c79992f | 2009-11-25 22:10:43 +0000 | [diff] [blame] | 1719 | size_t pktlen = max_t(size_t, skb->len, ETH_ZLEN); |
| 1720 | |
| 1721 | /* For scatter-gather */ |
| 1722 | if (skb_shinfo(skb)->nr_frags > 0) |
| 1723 | pktlen = max_t(size_t, pktlen, |
| 1724 | td->td_buf[i].size & ~TD_QUEUE); |
| 1725 | |
| 1726 | pci_unmap_single(vptr->pdev, tdinfo->skb_dma[i], |
| 1727 | le16_to_cpu(pktlen), PCI_DMA_TODEVICE); |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 1728 | } |
| 1729 | } |
| 1730 | dev_kfree_skb_irq(skb); |
| 1731 | tdinfo->skb = NULL; |
| 1732 | } |
| 1733 | |
| 1734 | |
| 1735 | /* |
| 1736 | * FIXME: could we merge this with velocity_free_tx_buf ? |
| 1737 | */ |
| 1738 | static void velocity_free_td_ring_entry(struct velocity_info *vptr, |
| 1739 | int q, int n) |
| 1740 | { |
| 1741 | struct velocity_td_info *td_info = &(vptr->tx.infos[q][n]); |
| 1742 | int i; |
| 1743 | |
| 1744 | if (td_info == NULL) |
| 1745 | return; |
| 1746 | |
| 1747 | if (td_info->skb) { |
| 1748 | for (i = 0; i < td_info->nskb_dma; i++) { |
| 1749 | if (td_info->skb_dma[i]) { |
| 1750 | pci_unmap_single(vptr->pdev, td_info->skb_dma[i], |
| 1751 | td_info->skb->len, PCI_DMA_TODEVICE); |
| 1752 | td_info->skb_dma[i] = 0; |
| 1753 | } |
| 1754 | } |
| 1755 | dev_kfree_skb(td_info->skb); |
| 1756 | td_info->skb = NULL; |
| 1757 | } |
| 1758 | } |
| 1759 | |
| 1760 | /** |
| 1761 | * velocity_free_td_ring - free td ring |
| 1762 | * @vptr: velocity |
| 1763 | * |
| 1764 | * Free up the transmit ring for this particular velocity adapter. |
| 1765 | * We free the ring contents but not the ring itself. |
| 1766 | */ |
| 1767 | static void velocity_free_td_ring(struct velocity_info *vptr) |
| 1768 | { |
| 1769 | int i, j; |
| 1770 | |
| 1771 | for (j = 0; j < vptr->tx.numq; j++) { |
| 1772 | if (vptr->tx.infos[j] == NULL) |
| 1773 | continue; |
| 1774 | for (i = 0; i < vptr->options.numtx; i++) |
| 1775 | velocity_free_td_ring_entry(vptr, j, i); |
| 1776 | |
| 1777 | kfree(vptr->tx.infos[j]); |
| 1778 | vptr->tx.infos[j] = NULL; |
| 1779 | } |
| 1780 | } |
| 1781 | |
| 1782 | |
| 1783 | static void velocity_free_rings(struct velocity_info *vptr) |
| 1784 | { |
| 1785 | velocity_free_td_ring(vptr); |
| 1786 | velocity_free_rd_ring(vptr); |
| 1787 | velocity_free_dma_rings(vptr); |
| 1788 | } |
| 1789 | |
| 1790 | /** |
| 1791 | * velocity_error - handle error from controller |
| 1792 | * @vptr: velocity |
| 1793 | * @status: card status |
| 1794 | * |
| 1795 | * Process an error report from the hardware and attempt to recover |
| 1796 | * the card itself. At the moment we cannot recover from some |
| 1797 | * theoretically impossible errors but this could be fixed using |
| 1798 | * the pci_device_failed logic to bounce the hardware |
| 1799 | * |
| 1800 | */ |
| 1801 | static void velocity_error(struct velocity_info *vptr, int status) |
| 1802 | { |
| 1803 | |
| 1804 | if (status & ISR_TXSTLI) { |
| 1805 | struct mac_regs __iomem *regs = vptr->mac_regs; |
| 1806 | |
| 1807 | printk(KERN_ERR "TD structure error TDindex=%hx\n", readw(®s->TDIdx[0])); |
| 1808 | BYTE_REG_BITS_ON(TXESR_TDSTR, ®s->TXESR); |
| 1809 | writew(TRDCSR_RUN, ®s->TDCSRClr); |
| 1810 | netif_stop_queue(vptr->dev); |
| 1811 | |
| 1812 | /* FIXME: port over the pci_device_failed code and use it |
| 1813 | here */ |
| 1814 | } |
| 1815 | |
| 1816 | if (status & ISR_SRCI) { |
| 1817 | struct mac_regs __iomem *regs = vptr->mac_regs; |
| 1818 | int linked; |
| 1819 | |
| 1820 | if (vptr->options.spd_dpx == SPD_DPX_AUTO) { |
| 1821 | vptr->mii_status = check_connection_type(regs); |
| 1822 | |
| 1823 | /* |
| 1824 | * If it is a 3119, disable frame bursting in |
| 1825 | * halfduplex mode and enable it in fullduplex |
| 1826 | * mode |
| 1827 | */ |
| 1828 | if (vptr->rev_id < REV_ID_VT3216_A0) { |
David S. Miller | 6cdee2f | 2009-09-02 00:32:56 -0700 | [diff] [blame] | 1829 | if (vptr->mii_status & VELOCITY_DUPLEX_FULL) |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 1830 | BYTE_REG_BITS_ON(TCR_TB2BDIS, ®s->TCR); |
| 1831 | else |
| 1832 | BYTE_REG_BITS_OFF(TCR_TB2BDIS, ®s->TCR); |
| 1833 | } |
| 1834 | /* |
| 1835 | * Only enable CD heart beat counter in 10HD mode |
| 1836 | */ |
| 1837 | if (!(vptr->mii_status & VELOCITY_DUPLEX_FULL) && (vptr->mii_status & VELOCITY_SPEED_10)) |
| 1838 | BYTE_REG_BITS_OFF(TESTCFG_HBDIS, ®s->TESTCFG); |
| 1839 | else |
| 1840 | BYTE_REG_BITS_ON(TESTCFG_HBDIS, ®s->TESTCFG); |
Simon Kagstrom | 6dfc4b9 | 2009-11-25 22:10:12 +0000 | [diff] [blame] | 1841 | |
| 1842 | setup_queue_timers(vptr); |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 1843 | } |
| 1844 | /* |
| 1845 | * Get link status from PHYSR0 |
| 1846 | */ |
| 1847 | linked = readb(®s->PHYSR0) & PHYSR0_LINKGD; |
| 1848 | |
| 1849 | if (linked) { |
| 1850 | vptr->mii_status &= ~VELOCITY_LINK_FAIL; |
| 1851 | netif_carrier_on(vptr->dev); |
| 1852 | } else { |
| 1853 | vptr->mii_status |= VELOCITY_LINK_FAIL; |
| 1854 | netif_carrier_off(vptr->dev); |
| 1855 | } |
| 1856 | |
| 1857 | velocity_print_link_status(vptr); |
| 1858 | enable_flow_control_ability(vptr); |
| 1859 | |
| 1860 | /* |
| 1861 | * Re-enable auto-polling because SRCI will disable |
| 1862 | * auto-polling |
| 1863 | */ |
| 1864 | |
| 1865 | enable_mii_autopoll(regs); |
| 1866 | |
| 1867 | if (vptr->mii_status & VELOCITY_LINK_FAIL) |
| 1868 | netif_stop_queue(vptr->dev); |
| 1869 | else |
| 1870 | netif_wake_queue(vptr->dev); |
| 1871 | |
| 1872 | }; |
| 1873 | if (status & ISR_MIBFI) |
| 1874 | velocity_update_hw_mibs(vptr); |
| 1875 | if (status & ISR_LSTEI) |
| 1876 | mac_rx_queue_wake(vptr->mac_regs); |
| 1877 | } |
| 1878 | |
| 1879 | /** |
| 1880 | * tx_srv - transmit interrupt service |
| 1881 | * @vptr; Velocity |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 1882 | * |
| 1883 | * Scan the queues looking for transmitted packets that |
| 1884 | * we can complete and clean up. Update any statistics as |
| 1885 | * necessary/ |
| 1886 | */ |
Simon Kagstrom | d6cade0 | 2010-02-09 23:37:54 +0000 | [diff] [blame] | 1887 | static int velocity_tx_srv(struct velocity_info *vptr) |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 1888 | { |
| 1889 | struct tx_desc *td; |
| 1890 | int qnum; |
| 1891 | int full = 0; |
| 1892 | int idx; |
| 1893 | int works = 0; |
| 1894 | struct velocity_td_info *tdinfo; |
| 1895 | struct net_device_stats *stats = &vptr->dev->stats; |
| 1896 | |
| 1897 | for (qnum = 0; qnum < vptr->tx.numq; qnum++) { |
| 1898 | for (idx = vptr->tx.tail[qnum]; vptr->tx.used[qnum] > 0; |
| 1899 | idx = (idx + 1) % vptr->options.numtx) { |
| 1900 | |
| 1901 | /* |
| 1902 | * Get Tx Descriptor |
| 1903 | */ |
| 1904 | td = &(vptr->tx.rings[qnum][idx]); |
| 1905 | tdinfo = &(vptr->tx.infos[qnum][idx]); |
| 1906 | |
| 1907 | if (td->tdesc0.len & OWNED_BY_NIC) |
| 1908 | break; |
| 1909 | |
| 1910 | if ((works++ > 15)) |
| 1911 | break; |
| 1912 | |
| 1913 | if (td->tdesc0.TSR & TSR0_TERR) { |
| 1914 | stats->tx_errors++; |
| 1915 | stats->tx_dropped++; |
| 1916 | if (td->tdesc0.TSR & TSR0_CDH) |
| 1917 | stats->tx_heartbeat_errors++; |
| 1918 | if (td->tdesc0.TSR & TSR0_CRS) |
| 1919 | stats->tx_carrier_errors++; |
| 1920 | if (td->tdesc0.TSR & TSR0_ABT) |
| 1921 | stats->tx_aborted_errors++; |
| 1922 | if (td->tdesc0.TSR & TSR0_OWC) |
| 1923 | stats->tx_window_errors++; |
| 1924 | } else { |
| 1925 | stats->tx_packets++; |
| 1926 | stats->tx_bytes += tdinfo->skb->len; |
| 1927 | } |
Simon Kagstrom | c79992f | 2009-11-25 22:10:43 +0000 | [diff] [blame] | 1928 | velocity_free_tx_buf(vptr, tdinfo, td); |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 1929 | vptr->tx.used[qnum]--; |
| 1930 | } |
| 1931 | vptr->tx.tail[qnum] = idx; |
| 1932 | |
| 1933 | if (AVAIL_TD(vptr, qnum) < 1) |
| 1934 | full = 1; |
| 1935 | } |
| 1936 | /* |
| 1937 | * Look to see if we should kick the transmit network |
| 1938 | * layer for more work. |
| 1939 | */ |
Joe Perches | 8e95a20 | 2009-12-03 07:58:21 +0000 | [diff] [blame] | 1940 | if (netif_queue_stopped(vptr->dev) && (full == 0) && |
| 1941 | (!(vptr->mii_status & VELOCITY_LINK_FAIL))) { |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 1942 | netif_wake_queue(vptr->dev); |
| 1943 | } |
| 1944 | return works; |
| 1945 | } |
| 1946 | |
| 1947 | /** |
| 1948 | * velocity_rx_csum - checksum process |
| 1949 | * @rd: receive packet descriptor |
| 1950 | * @skb: network layer packet buffer |
| 1951 | * |
| 1952 | * Process the status bits for the received packet and determine |
| 1953 | * if the checksum was computed and verified by the hardware |
| 1954 | */ |
| 1955 | static inline void velocity_rx_csum(struct rx_desc *rd, struct sk_buff *skb) |
| 1956 | { |
| 1957 | skb->ip_summed = CHECKSUM_NONE; |
| 1958 | |
| 1959 | if (rd->rdesc1.CSM & CSM_IPKT) { |
| 1960 | if (rd->rdesc1.CSM & CSM_IPOK) { |
| 1961 | if ((rd->rdesc1.CSM & CSM_TCPKT) || |
| 1962 | (rd->rdesc1.CSM & CSM_UDPKT)) { |
| 1963 | if (!(rd->rdesc1.CSM & CSM_TUPOK)) |
| 1964 | return; |
| 1965 | } |
| 1966 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
| 1967 | } |
| 1968 | } |
| 1969 | } |
| 1970 | |
| 1971 | /** |
| 1972 | * velocity_rx_copy - in place Rx copy for small packets |
| 1973 | * @rx_skb: network layer packet buffer candidate |
| 1974 | * @pkt_size: received data size |
| 1975 | * @rd: receive packet descriptor |
| 1976 | * @dev: network device |
| 1977 | * |
| 1978 | * Replace the current skb that is scheduled for Rx processing by a |
| 1979 | * shorter, immediatly allocated skb, if the received packet is small |
| 1980 | * enough. This function returns a negative value if the received |
| 1981 | * packet is too big or if memory is exhausted. |
| 1982 | */ |
| 1983 | static int velocity_rx_copy(struct sk_buff **rx_skb, int pkt_size, |
| 1984 | struct velocity_info *vptr) |
| 1985 | { |
| 1986 | int ret = -1; |
| 1987 | if (pkt_size < rx_copybreak) { |
| 1988 | struct sk_buff *new_skb; |
| 1989 | |
Eric Dumazet | 89d71a6 | 2009-10-13 05:34:20 +0000 | [diff] [blame] | 1990 | new_skb = netdev_alloc_skb_ip_align(vptr->dev, pkt_size); |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 1991 | if (new_skb) { |
| 1992 | new_skb->ip_summed = rx_skb[0]->ip_summed; |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 1993 | skb_copy_from_linear_data(*rx_skb, new_skb->data, pkt_size); |
| 1994 | *rx_skb = new_skb; |
| 1995 | ret = 0; |
| 1996 | } |
| 1997 | |
| 1998 | } |
| 1999 | return ret; |
| 2000 | } |
| 2001 | |
| 2002 | /** |
| 2003 | * velocity_iph_realign - IP header alignment |
| 2004 | * @vptr: velocity we are handling |
| 2005 | * @skb: network layer packet buffer |
| 2006 | * @pkt_size: received data size |
| 2007 | * |
| 2008 | * Align IP header on a 2 bytes boundary. This behavior can be |
| 2009 | * configured by the user. |
| 2010 | */ |
| 2011 | static inline void velocity_iph_realign(struct velocity_info *vptr, |
| 2012 | struct sk_buff *skb, int pkt_size) |
| 2013 | { |
| 2014 | if (vptr->flags & VELOCITY_FLAGS_IP_ALIGN) { |
| 2015 | memmove(skb->data + 2, skb->data, pkt_size); |
| 2016 | skb_reserve(skb, 2); |
| 2017 | } |
| 2018 | } |
| 2019 | |
| 2020 | |
| 2021 | /** |
| 2022 | * velocity_receive_frame - received packet processor |
| 2023 | * @vptr: velocity we are handling |
| 2024 | * @idx: ring index |
| 2025 | * |
| 2026 | * A packet has arrived. We process the packet and if appropriate |
| 2027 | * pass the frame up the network stack |
| 2028 | */ |
| 2029 | static int velocity_receive_frame(struct velocity_info *vptr, int idx) |
| 2030 | { |
| 2031 | void (*pci_action)(struct pci_dev *, dma_addr_t, size_t, int); |
| 2032 | struct net_device_stats *stats = &vptr->dev->stats; |
| 2033 | struct velocity_rd_info *rd_info = &(vptr->rx.info[idx]); |
| 2034 | struct rx_desc *rd = &(vptr->rx.ring[idx]); |
| 2035 | int pkt_len = le16_to_cpu(rd->rdesc0.len) & 0x3fff; |
| 2036 | struct sk_buff *skb; |
| 2037 | |
| 2038 | if (rd->rdesc0.RSR & (RSR_STP | RSR_EDP)) { |
| 2039 | VELOCITY_PRT(MSG_LEVEL_VERBOSE, KERN_ERR " %s : the received frame span multple RDs.\n", vptr->dev->name); |
| 2040 | stats->rx_length_errors++; |
| 2041 | return -EINVAL; |
| 2042 | } |
| 2043 | |
| 2044 | if (rd->rdesc0.RSR & RSR_MAR) |
| 2045 | stats->multicast++; |
| 2046 | |
| 2047 | skb = rd_info->skb; |
| 2048 | |
| 2049 | pci_dma_sync_single_for_cpu(vptr->pdev, rd_info->skb_dma, |
| 2050 | vptr->rx.buf_sz, PCI_DMA_FROMDEVICE); |
| 2051 | |
| 2052 | /* |
| 2053 | * Drop frame not meeting IEEE 802.3 |
| 2054 | */ |
| 2055 | |
| 2056 | if (vptr->flags & VELOCITY_FLAGS_VAL_PKT_LEN) { |
| 2057 | if (rd->rdesc0.RSR & RSR_RL) { |
| 2058 | stats->rx_length_errors++; |
| 2059 | return -EINVAL; |
| 2060 | } |
| 2061 | } |
| 2062 | |
| 2063 | pci_action = pci_dma_sync_single_for_device; |
| 2064 | |
| 2065 | velocity_rx_csum(rd, skb); |
| 2066 | |
| 2067 | if (velocity_rx_copy(&skb, pkt_len, vptr) < 0) { |
| 2068 | velocity_iph_realign(vptr, skb, pkt_len); |
| 2069 | pci_action = pci_unmap_single; |
| 2070 | rd_info->skb = NULL; |
| 2071 | } |
| 2072 | |
| 2073 | pci_action(vptr->pdev, rd_info->skb_dma, vptr->rx.buf_sz, |
| 2074 | PCI_DMA_FROMDEVICE); |
| 2075 | |
| 2076 | skb_put(skb, pkt_len - 4); |
| 2077 | skb->protocol = eth_type_trans(skb, vptr->dev); |
| 2078 | |
| 2079 | if (vptr->vlgrp && (rd->rdesc0.RSR & RSR_DETAG)) { |
| 2080 | vlan_hwaccel_rx(skb, vptr->vlgrp, |
| 2081 | swab16(le16_to_cpu(rd->rdesc1.PQTAG))); |
| 2082 | } else |
| 2083 | netif_rx(skb); |
| 2084 | |
| 2085 | stats->rx_bytes += pkt_len; |
| 2086 | |
| 2087 | return 0; |
| 2088 | } |
| 2089 | |
| 2090 | |
| 2091 | /** |
| 2092 | * velocity_rx_srv - service RX interrupt |
| 2093 | * @vptr: velocity |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2094 | * |
| 2095 | * Walk the receive ring of the velocity adapter and remove |
| 2096 | * any received packets from the receive queue. Hand the ring |
| 2097 | * slots back to the adapter for reuse. |
| 2098 | */ |
Simon Kagstrom | d6cade0 | 2010-02-09 23:37:54 +0000 | [diff] [blame] | 2099 | static int velocity_rx_srv(struct velocity_info *vptr, int budget_left) |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2100 | { |
| 2101 | struct net_device_stats *stats = &vptr->dev->stats; |
| 2102 | int rd_curr = vptr->rx.curr; |
| 2103 | int works = 0; |
| 2104 | |
Simon Kagstrom | dfff714 | 2009-11-25 22:10:26 +0000 | [diff] [blame] | 2105 | while (works < budget_left) { |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2106 | struct rx_desc *rd = vptr->rx.ring + rd_curr; |
| 2107 | |
| 2108 | if (!vptr->rx.info[rd_curr].skb) |
| 2109 | break; |
| 2110 | |
| 2111 | if (rd->rdesc0.len & OWNED_BY_NIC) |
| 2112 | break; |
| 2113 | |
| 2114 | rmb(); |
| 2115 | |
| 2116 | /* |
| 2117 | * Don't drop CE or RL error frame although RXOK is off |
| 2118 | */ |
| 2119 | if (rd->rdesc0.RSR & (RSR_RXOK | RSR_CE | RSR_RL)) { |
| 2120 | if (velocity_receive_frame(vptr, rd_curr) < 0) |
| 2121 | stats->rx_dropped++; |
| 2122 | } else { |
| 2123 | if (rd->rdesc0.RSR & RSR_CRC) |
| 2124 | stats->rx_crc_errors++; |
| 2125 | if (rd->rdesc0.RSR & RSR_FAE) |
| 2126 | stats->rx_frame_errors++; |
| 2127 | |
| 2128 | stats->rx_dropped++; |
| 2129 | } |
| 2130 | |
| 2131 | rd->size |= RX_INTEN; |
| 2132 | |
| 2133 | rd_curr++; |
| 2134 | if (rd_curr >= vptr->options.numrx) |
| 2135 | rd_curr = 0; |
Simon Kagstrom | dfff714 | 2009-11-25 22:10:26 +0000 | [diff] [blame] | 2136 | works++; |
| 2137 | } |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2138 | |
| 2139 | vptr->rx.curr = rd_curr; |
| 2140 | |
| 2141 | if ((works > 0) && (velocity_rx_refill(vptr) > 0)) |
| 2142 | velocity_give_many_rx_descs(vptr); |
| 2143 | |
| 2144 | VAR_USED(stats); |
| 2145 | return works; |
| 2146 | } |
| 2147 | |
Simon Kagstrom | dfff714 | 2009-11-25 22:10:26 +0000 | [diff] [blame] | 2148 | static int velocity_poll(struct napi_struct *napi, int budget) |
| 2149 | { |
| 2150 | struct velocity_info *vptr = container_of(napi, |
| 2151 | struct velocity_info, napi); |
| 2152 | unsigned int rx_done; |
Simon Kagstrom | 3f2e8d9 | 2010-02-09 23:38:25 +0000 | [diff] [blame] | 2153 | unsigned long flags; |
Simon Kagstrom | dfff714 | 2009-11-25 22:10:26 +0000 | [diff] [blame] | 2154 | |
Simon Kagstrom | 3f2e8d9 | 2010-02-09 23:38:25 +0000 | [diff] [blame] | 2155 | spin_lock_irqsave(&vptr->lock, flags); |
Simon Kagstrom | dfff714 | 2009-11-25 22:10:26 +0000 | [diff] [blame] | 2156 | /* |
| 2157 | * Do rx and tx twice for performance (taken from the VIA |
| 2158 | * out-of-tree driver). |
| 2159 | */ |
Simon Kagstrom | d6cade0 | 2010-02-09 23:37:54 +0000 | [diff] [blame] | 2160 | rx_done = velocity_rx_srv(vptr, budget / 2); |
| 2161 | velocity_tx_srv(vptr); |
| 2162 | rx_done += velocity_rx_srv(vptr, budget - rx_done); |
| 2163 | velocity_tx_srv(vptr); |
Simon Kagstrom | dfff714 | 2009-11-25 22:10:26 +0000 | [diff] [blame] | 2164 | |
| 2165 | /* If budget not fully consumed, exit the polling mode */ |
| 2166 | if (rx_done < budget) { |
| 2167 | napi_complete(napi); |
| 2168 | mac_enable_int(vptr->mac_regs); |
| 2169 | } |
Simon Kagstrom | 3f2e8d9 | 2010-02-09 23:38:25 +0000 | [diff] [blame] | 2170 | spin_unlock_irqrestore(&vptr->lock, flags); |
Simon Kagstrom | dfff714 | 2009-11-25 22:10:26 +0000 | [diff] [blame] | 2171 | |
| 2172 | return rx_done; |
| 2173 | } |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2174 | |
| 2175 | /** |
| 2176 | * velocity_intr - interrupt callback |
| 2177 | * @irq: interrupt number |
| 2178 | * @dev_instance: interrupting device |
| 2179 | * |
| 2180 | * Called whenever an interrupt is generated by the velocity |
| 2181 | * adapter IRQ line. We may not be the source of the interrupt |
| 2182 | * and need to identify initially if we are, and if not exit as |
| 2183 | * efficiently as possible. |
| 2184 | */ |
| 2185 | static irqreturn_t velocity_intr(int irq, void *dev_instance) |
| 2186 | { |
| 2187 | struct net_device *dev = dev_instance; |
| 2188 | struct velocity_info *vptr = netdev_priv(dev); |
| 2189 | u32 isr_status; |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2190 | |
| 2191 | spin_lock(&vptr->lock); |
| 2192 | isr_status = mac_read_isr(vptr->mac_regs); |
| 2193 | |
| 2194 | /* Not us ? */ |
| 2195 | if (isr_status == 0) { |
| 2196 | spin_unlock(&vptr->lock); |
| 2197 | return IRQ_NONE; |
| 2198 | } |
| 2199 | |
Simon Kagstrom | 3f2e8d9 | 2010-02-09 23:38:25 +0000 | [diff] [blame] | 2200 | /* Ack the interrupt */ |
| 2201 | mac_write_isr(vptr->mac_regs, isr_status); |
| 2202 | |
Simon Kagstrom | dfff714 | 2009-11-25 22:10:26 +0000 | [diff] [blame] | 2203 | if (likely(napi_schedule_prep(&vptr->napi))) { |
| 2204 | mac_disable_int(vptr->mac_regs); |
| 2205 | __napi_schedule(&vptr->napi); |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2206 | } |
Simon Kagstrom | 3f2e8d9 | 2010-02-09 23:38:25 +0000 | [diff] [blame] | 2207 | |
| 2208 | if (isr_status & (~(ISR_PRXI | ISR_PPRXI | ISR_PTXI | ISR_PPTXI))) |
| 2209 | velocity_error(vptr, isr_status); |
| 2210 | |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2211 | spin_unlock(&vptr->lock); |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2212 | |
Simon Kagstrom | dfff714 | 2009-11-25 22:10:26 +0000 | [diff] [blame] | 2213 | return IRQ_HANDLED; |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2214 | } |
| 2215 | |
| 2216 | /** |
| 2217 | * velocity_open - interface activation callback |
| 2218 | * @dev: network layer device to open |
| 2219 | * |
| 2220 | * Called when the network layer brings the interface up. Returns |
| 2221 | * a negative posix error code on failure, or zero on success. |
| 2222 | * |
| 2223 | * All the ring allocation and set up is done on open for this |
| 2224 | * adapter to minimise memory usage when inactive |
| 2225 | */ |
| 2226 | static int velocity_open(struct net_device *dev) |
| 2227 | { |
| 2228 | struct velocity_info *vptr = netdev_priv(dev); |
| 2229 | int ret; |
| 2230 | |
| 2231 | ret = velocity_init_rings(vptr, dev->mtu); |
| 2232 | if (ret < 0) |
| 2233 | goto out; |
| 2234 | |
| 2235 | /* Ensure chip is running */ |
| 2236 | pci_set_power_state(vptr->pdev, PCI_D0); |
| 2237 | |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2238 | velocity_init_registers(vptr, VELOCITY_INIT_COLD); |
| 2239 | |
Julia Lawall | 1ede9b5 | 2009-11-18 08:24:13 +0000 | [diff] [blame] | 2240 | ret = request_irq(vptr->pdev->irq, velocity_intr, IRQF_SHARED, |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2241 | dev->name, dev); |
| 2242 | if (ret < 0) { |
| 2243 | /* Power down the chip */ |
| 2244 | pci_set_power_state(vptr->pdev, PCI_D3hot); |
| 2245 | velocity_free_rings(vptr); |
| 2246 | goto out; |
| 2247 | } |
| 2248 | |
Ben Hutchings | 35bb5ca | 2009-12-14 16:05:09 +0000 | [diff] [blame] | 2249 | velocity_give_many_rx_descs(vptr); |
| 2250 | |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2251 | mac_enable_int(vptr->mac_regs); |
| 2252 | netif_start_queue(dev); |
Simon Kagstrom | dfff714 | 2009-11-25 22:10:26 +0000 | [diff] [blame] | 2253 | napi_enable(&vptr->napi); |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2254 | vptr->flags |= VELOCITY_FLAGS_OPENED; |
| 2255 | out: |
| 2256 | return ret; |
| 2257 | } |
| 2258 | |
| 2259 | /** |
| 2260 | * velocity_shutdown - shut down the chip |
| 2261 | * @vptr: velocity to deactivate |
| 2262 | * |
| 2263 | * Shuts down the internal operations of the velocity and |
| 2264 | * disables interrupts, autopolling, transmit and receive |
| 2265 | */ |
| 2266 | static void velocity_shutdown(struct velocity_info *vptr) |
| 2267 | { |
| 2268 | struct mac_regs __iomem *regs = vptr->mac_regs; |
| 2269 | mac_disable_int(regs); |
| 2270 | writel(CR0_STOP, ®s->CR0Set); |
| 2271 | writew(0xFFFF, ®s->TDCSRClr); |
| 2272 | writeb(0xFF, ®s->RDCSRClr); |
| 2273 | safe_disable_mii_autopoll(regs); |
| 2274 | mac_clear_isr(regs); |
| 2275 | } |
| 2276 | |
| 2277 | /** |
| 2278 | * velocity_change_mtu - MTU change callback |
| 2279 | * @dev: network device |
| 2280 | * @new_mtu: desired MTU |
| 2281 | * |
| 2282 | * Handle requests from the networking layer for MTU change on |
| 2283 | * this interface. It gets called on a change by the network layer. |
| 2284 | * Return zero for success or negative posix error code. |
| 2285 | */ |
| 2286 | static int velocity_change_mtu(struct net_device *dev, int new_mtu) |
| 2287 | { |
| 2288 | struct velocity_info *vptr = netdev_priv(dev); |
| 2289 | int ret = 0; |
| 2290 | |
| 2291 | if ((new_mtu < VELOCITY_MIN_MTU) || new_mtu > (VELOCITY_MAX_MTU)) { |
| 2292 | VELOCITY_PRT(MSG_LEVEL_ERR, KERN_NOTICE "%s: Invalid MTU.\n", |
| 2293 | vptr->dev->name); |
| 2294 | ret = -EINVAL; |
| 2295 | goto out_0; |
| 2296 | } |
| 2297 | |
| 2298 | if (!netif_running(dev)) { |
| 2299 | dev->mtu = new_mtu; |
| 2300 | goto out_0; |
| 2301 | } |
| 2302 | |
| 2303 | if (dev->mtu != new_mtu) { |
| 2304 | struct velocity_info *tmp_vptr; |
| 2305 | unsigned long flags; |
| 2306 | struct rx_info rx; |
| 2307 | struct tx_info tx; |
| 2308 | |
| 2309 | tmp_vptr = kzalloc(sizeof(*tmp_vptr), GFP_KERNEL); |
| 2310 | if (!tmp_vptr) { |
| 2311 | ret = -ENOMEM; |
| 2312 | goto out_0; |
| 2313 | } |
| 2314 | |
| 2315 | tmp_vptr->dev = dev; |
| 2316 | tmp_vptr->pdev = vptr->pdev; |
| 2317 | tmp_vptr->options = vptr->options; |
| 2318 | tmp_vptr->tx.numq = vptr->tx.numq; |
| 2319 | |
| 2320 | ret = velocity_init_rings(tmp_vptr, new_mtu); |
| 2321 | if (ret < 0) |
| 2322 | goto out_free_tmp_vptr_1; |
| 2323 | |
| 2324 | spin_lock_irqsave(&vptr->lock, flags); |
| 2325 | |
| 2326 | netif_stop_queue(dev); |
| 2327 | velocity_shutdown(vptr); |
| 2328 | |
| 2329 | rx = vptr->rx; |
| 2330 | tx = vptr->tx; |
| 2331 | |
| 2332 | vptr->rx = tmp_vptr->rx; |
| 2333 | vptr->tx = tmp_vptr->tx; |
| 2334 | |
| 2335 | tmp_vptr->rx = rx; |
| 2336 | tmp_vptr->tx = tx; |
| 2337 | |
| 2338 | dev->mtu = new_mtu; |
| 2339 | |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2340 | velocity_init_registers(vptr, VELOCITY_INIT_COLD); |
| 2341 | |
Ben Hutchings | 35bb5ca | 2009-12-14 16:05:09 +0000 | [diff] [blame] | 2342 | velocity_give_many_rx_descs(vptr); |
| 2343 | |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2344 | mac_enable_int(vptr->mac_regs); |
| 2345 | netif_start_queue(dev); |
| 2346 | |
| 2347 | spin_unlock_irqrestore(&vptr->lock, flags); |
| 2348 | |
| 2349 | velocity_free_rings(tmp_vptr); |
| 2350 | |
| 2351 | out_free_tmp_vptr_1: |
| 2352 | kfree(tmp_vptr); |
| 2353 | } |
| 2354 | out_0: |
| 2355 | return ret; |
| 2356 | } |
| 2357 | |
| 2358 | /** |
| 2359 | * velocity_mii_ioctl - MII ioctl handler |
| 2360 | * @dev: network device |
| 2361 | * @ifr: the ifreq block for the ioctl |
| 2362 | * @cmd: the command |
| 2363 | * |
| 2364 | * Process MII requests made via ioctl from the network layer. These |
| 2365 | * are used by tools like kudzu to interrogate the link state of the |
| 2366 | * hardware |
| 2367 | */ |
| 2368 | static int velocity_mii_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) |
| 2369 | { |
| 2370 | struct velocity_info *vptr = netdev_priv(dev); |
| 2371 | struct mac_regs __iomem *regs = vptr->mac_regs; |
| 2372 | unsigned long flags; |
| 2373 | struct mii_ioctl_data *miidata = if_mii(ifr); |
| 2374 | int err; |
| 2375 | |
| 2376 | switch (cmd) { |
| 2377 | case SIOCGMIIPHY: |
| 2378 | miidata->phy_id = readb(®s->MIIADR) & 0x1f; |
| 2379 | break; |
| 2380 | case SIOCGMIIREG: |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2381 | if (velocity_mii_read(vptr->mac_regs, miidata->reg_num & 0x1f, &(miidata->val_out)) < 0) |
| 2382 | return -ETIMEDOUT; |
| 2383 | break; |
| 2384 | case SIOCSMIIREG: |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2385 | spin_lock_irqsave(&vptr->lock, flags); |
| 2386 | err = velocity_mii_write(vptr->mac_regs, miidata->reg_num & 0x1f, miidata->val_in); |
| 2387 | spin_unlock_irqrestore(&vptr->lock, flags); |
| 2388 | check_connection_type(vptr->mac_regs); |
| 2389 | if (err) |
| 2390 | return err; |
| 2391 | break; |
| 2392 | default: |
| 2393 | return -EOPNOTSUPP; |
| 2394 | } |
| 2395 | return 0; |
| 2396 | } |
| 2397 | |
| 2398 | |
| 2399 | /** |
| 2400 | * velocity_ioctl - ioctl entry point |
| 2401 | * @dev: network device |
| 2402 | * @rq: interface request ioctl |
| 2403 | * @cmd: command code |
| 2404 | * |
| 2405 | * Called when the user issues an ioctl request to the network |
| 2406 | * device in question. The velocity interface supports MII. |
| 2407 | */ |
| 2408 | static int velocity_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) |
| 2409 | { |
| 2410 | struct velocity_info *vptr = netdev_priv(dev); |
| 2411 | int ret; |
| 2412 | |
| 2413 | /* If we are asked for information and the device is power |
| 2414 | saving then we need to bring the device back up to talk to it */ |
| 2415 | |
| 2416 | if (!netif_running(dev)) |
| 2417 | pci_set_power_state(vptr->pdev, PCI_D0); |
| 2418 | |
| 2419 | switch (cmd) { |
| 2420 | case SIOCGMIIPHY: /* Get address of MII PHY in use. */ |
| 2421 | case SIOCGMIIREG: /* Read MII PHY register. */ |
| 2422 | case SIOCSMIIREG: /* Write to MII PHY register. */ |
| 2423 | ret = velocity_mii_ioctl(dev, rq, cmd); |
| 2424 | break; |
| 2425 | |
| 2426 | default: |
| 2427 | ret = -EOPNOTSUPP; |
| 2428 | } |
| 2429 | if (!netif_running(dev)) |
| 2430 | pci_set_power_state(vptr->pdev, PCI_D3hot); |
| 2431 | |
| 2432 | |
| 2433 | return ret; |
| 2434 | } |
| 2435 | |
| 2436 | /** |
| 2437 | * velocity_get_status - statistics callback |
| 2438 | * @dev: network device |
| 2439 | * |
| 2440 | * Callback from the network layer to allow driver statistics |
| 2441 | * to be resynchronized with hardware collected state. In the |
| 2442 | * case of the velocity we need to pull the MIB counters from |
| 2443 | * the hardware into the counters before letting the network |
| 2444 | * layer display them. |
| 2445 | */ |
| 2446 | static struct net_device_stats *velocity_get_stats(struct net_device *dev) |
| 2447 | { |
| 2448 | struct velocity_info *vptr = netdev_priv(dev); |
| 2449 | |
| 2450 | /* If the hardware is down, don't touch MII */ |
| 2451 | if (!netif_running(dev)) |
| 2452 | return &dev->stats; |
| 2453 | |
| 2454 | spin_lock_irq(&vptr->lock); |
| 2455 | velocity_update_hw_mibs(vptr); |
| 2456 | spin_unlock_irq(&vptr->lock); |
| 2457 | |
| 2458 | dev->stats.rx_packets = vptr->mib_counter[HW_MIB_ifRxAllPkts]; |
| 2459 | dev->stats.rx_errors = vptr->mib_counter[HW_MIB_ifRxErrorPkts]; |
| 2460 | dev->stats.rx_length_errors = vptr->mib_counter[HW_MIB_ifInRangeLengthErrors]; |
| 2461 | |
| 2462 | // unsigned long rx_dropped; /* no space in linux buffers */ |
| 2463 | dev->stats.collisions = vptr->mib_counter[HW_MIB_ifTxEtherCollisions]; |
| 2464 | /* detailed rx_errors: */ |
| 2465 | // unsigned long rx_length_errors; |
| 2466 | // unsigned long rx_over_errors; /* receiver ring buff overflow */ |
| 2467 | dev->stats.rx_crc_errors = vptr->mib_counter[HW_MIB_ifRxPktCRCE]; |
| 2468 | // unsigned long rx_frame_errors; /* recv'd frame alignment error */ |
| 2469 | // unsigned long rx_fifo_errors; /* recv'r fifo overrun */ |
| 2470 | // unsigned long rx_missed_errors; /* receiver missed packet */ |
| 2471 | |
| 2472 | /* detailed tx_errors */ |
| 2473 | // unsigned long tx_fifo_errors; |
| 2474 | |
| 2475 | return &dev->stats; |
| 2476 | } |
| 2477 | |
| 2478 | /** |
| 2479 | * velocity_close - close adapter callback |
| 2480 | * @dev: network device |
| 2481 | * |
| 2482 | * Callback from the network layer when the velocity is being |
| 2483 | * deactivated by the network layer |
| 2484 | */ |
| 2485 | static int velocity_close(struct net_device *dev) |
| 2486 | { |
| 2487 | struct velocity_info *vptr = netdev_priv(dev); |
| 2488 | |
Simon Kagstrom | dfff714 | 2009-11-25 22:10:26 +0000 | [diff] [blame] | 2489 | napi_disable(&vptr->napi); |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2490 | netif_stop_queue(dev); |
| 2491 | velocity_shutdown(vptr); |
| 2492 | |
| 2493 | if (vptr->flags & VELOCITY_FLAGS_WOL_ENABLED) |
| 2494 | velocity_get_ip(vptr); |
| 2495 | if (dev->irq != 0) |
| 2496 | free_irq(dev->irq, dev); |
| 2497 | |
| 2498 | /* Power down the chip */ |
| 2499 | pci_set_power_state(vptr->pdev, PCI_D3hot); |
| 2500 | |
| 2501 | velocity_free_rings(vptr); |
| 2502 | |
| 2503 | vptr->flags &= (~VELOCITY_FLAGS_OPENED); |
| 2504 | return 0; |
| 2505 | } |
| 2506 | |
| 2507 | /** |
| 2508 | * velocity_xmit - transmit packet callback |
| 2509 | * @skb: buffer to transmit |
| 2510 | * @dev: network device |
| 2511 | * |
| 2512 | * Called by the networ layer to request a packet is queued to |
| 2513 | * the velocity. Returns zero on success. |
| 2514 | */ |
Stephen Hemminger | 61357325 | 2009-08-31 19:50:58 +0000 | [diff] [blame] | 2515 | static netdev_tx_t velocity_xmit(struct sk_buff *skb, |
| 2516 | struct net_device *dev) |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2517 | { |
| 2518 | struct velocity_info *vptr = netdev_priv(dev); |
| 2519 | int qnum = 0; |
| 2520 | struct tx_desc *td_ptr; |
| 2521 | struct velocity_td_info *tdinfo; |
| 2522 | unsigned long flags; |
| 2523 | int pktlen; |
Simon Kagstrom | c79992f | 2009-11-25 22:10:43 +0000 | [diff] [blame] | 2524 | int index, prev; |
| 2525 | int i = 0; |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2526 | |
| 2527 | if (skb_padto(skb, ETH_ZLEN)) |
| 2528 | goto out; |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2529 | |
Simon Kagstrom | c79992f | 2009-11-25 22:10:43 +0000 | [diff] [blame] | 2530 | /* The hardware can handle at most 7 memory segments, so merge |
| 2531 | * the skb if there are more */ |
| 2532 | if (skb_shinfo(skb)->nr_frags > 6 && __skb_linearize(skb)) { |
| 2533 | kfree_skb(skb); |
| 2534 | return NETDEV_TX_OK; |
| 2535 | } |
| 2536 | |
| 2537 | pktlen = skb_shinfo(skb)->nr_frags == 0 ? |
| 2538 | max_t(unsigned int, skb->len, ETH_ZLEN) : |
| 2539 | skb_headlen(skb); |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2540 | |
| 2541 | spin_lock_irqsave(&vptr->lock, flags); |
| 2542 | |
| 2543 | index = vptr->tx.curr[qnum]; |
| 2544 | td_ptr = &(vptr->tx.rings[qnum][index]); |
| 2545 | tdinfo = &(vptr->tx.infos[qnum][index]); |
| 2546 | |
| 2547 | td_ptr->tdesc1.TCR = TCR0_TIC; |
| 2548 | td_ptr->td_buf[0].size &= ~TD_QUEUE; |
| 2549 | |
| 2550 | /* |
| 2551 | * Map the linear network buffer into PCI space and |
| 2552 | * add it to the transmit ring. |
| 2553 | */ |
| 2554 | tdinfo->skb = skb; |
| 2555 | tdinfo->skb_dma[0] = pci_map_single(vptr->pdev, skb->data, pktlen, PCI_DMA_TODEVICE); |
Simon Kagstrom | c79992f | 2009-11-25 22:10:43 +0000 | [diff] [blame] | 2556 | td_ptr->tdesc0.len = cpu_to_le16(pktlen); |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2557 | td_ptr->td_buf[0].pa_low = cpu_to_le32(tdinfo->skb_dma[0]); |
| 2558 | td_ptr->td_buf[0].pa_high = 0; |
Simon Kagstrom | c79992f | 2009-11-25 22:10:43 +0000 | [diff] [blame] | 2559 | td_ptr->td_buf[0].size = cpu_to_le16(pktlen); |
| 2560 | |
| 2561 | /* Handle fragments */ |
| 2562 | for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { |
| 2563 | skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; |
| 2564 | |
| 2565 | tdinfo->skb_dma[i + 1] = pci_map_page(vptr->pdev, frag->page, |
| 2566 | frag->page_offset, frag->size, |
| 2567 | PCI_DMA_TODEVICE); |
| 2568 | |
| 2569 | td_ptr->td_buf[i + 1].pa_low = cpu_to_le32(tdinfo->skb_dma[i + 1]); |
| 2570 | td_ptr->td_buf[i + 1].pa_high = 0; |
| 2571 | td_ptr->td_buf[i + 1].size = cpu_to_le16(frag->size); |
| 2572 | } |
| 2573 | tdinfo->nskb_dma = i + 1; |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2574 | |
| 2575 | td_ptr->tdesc1.cmd = TCPLS_NORMAL + (tdinfo->nskb_dma + 1) * 16; |
| 2576 | |
| 2577 | if (vptr->vlgrp && vlan_tx_tag_present(skb)) { |
| 2578 | td_ptr->tdesc1.vlan = cpu_to_le16(vlan_tx_tag_get(skb)); |
| 2579 | td_ptr->tdesc1.TCR |= TCR0_VETAG; |
| 2580 | } |
| 2581 | |
| 2582 | /* |
| 2583 | * Handle hardware checksum |
| 2584 | */ |
Joe Perches | 8e95a20 | 2009-12-03 07:58:21 +0000 | [diff] [blame] | 2585 | if ((dev->features & NETIF_F_IP_CSUM) && |
| 2586 | (skb->ip_summed == CHECKSUM_PARTIAL)) { |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2587 | const struct iphdr *ip = ip_hdr(skb); |
| 2588 | if (ip->protocol == IPPROTO_TCP) |
| 2589 | td_ptr->tdesc1.TCR |= TCR0_TCPCK; |
| 2590 | else if (ip->protocol == IPPROTO_UDP) |
| 2591 | td_ptr->tdesc1.TCR |= (TCR0_UDPCK); |
| 2592 | td_ptr->tdesc1.TCR |= TCR0_IPCK; |
| 2593 | } |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2594 | |
Simon Kagstrom | c79992f | 2009-11-25 22:10:43 +0000 | [diff] [blame] | 2595 | prev = index - 1; |
| 2596 | if (prev < 0) |
| 2597 | prev = vptr->options.numtx - 1; |
| 2598 | td_ptr->tdesc0.len |= OWNED_BY_NIC; |
| 2599 | vptr->tx.used[qnum]++; |
| 2600 | vptr->tx.curr[qnum] = (index + 1) % vptr->options.numtx; |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2601 | |
Simon Kagstrom | c79992f | 2009-11-25 22:10:43 +0000 | [diff] [blame] | 2602 | if (AVAIL_TD(vptr, qnum) < 1) |
| 2603 | netif_stop_queue(dev); |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2604 | |
Simon Kagstrom | c79992f | 2009-11-25 22:10:43 +0000 | [diff] [blame] | 2605 | td_ptr = &(vptr->tx.rings[qnum][prev]); |
| 2606 | td_ptr->td_buf[0].size |= TD_QUEUE; |
| 2607 | mac_tx_queue_wake(vptr->mac_regs, qnum); |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2608 | |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2609 | dev->trans_start = jiffies; |
| 2610 | spin_unlock_irqrestore(&vptr->lock, flags); |
| 2611 | out: |
| 2612 | return NETDEV_TX_OK; |
| 2613 | } |
| 2614 | |
| 2615 | |
Stephen Hemminger | 39a11bd | 2008-11-19 22:19:33 -0800 | [diff] [blame] | 2616 | static const struct net_device_ops velocity_netdev_ops = { |
| 2617 | .ndo_open = velocity_open, |
| 2618 | .ndo_stop = velocity_close, |
Stephen Hemminger | 0082982 | 2008-11-20 20:14:53 -0800 | [diff] [blame] | 2619 | .ndo_start_xmit = velocity_xmit, |
Stephen Hemminger | 39a11bd | 2008-11-19 22:19:33 -0800 | [diff] [blame] | 2620 | .ndo_get_stats = velocity_get_stats, |
| 2621 | .ndo_validate_addr = eth_validate_addr, |
Stephen Hemminger | fe96aaa | 2009-01-09 11:13:14 +0000 | [diff] [blame] | 2622 | .ndo_set_mac_address = eth_mac_addr, |
Stephen Hemminger | 39a11bd | 2008-11-19 22:19:33 -0800 | [diff] [blame] | 2623 | .ndo_set_multicast_list = velocity_set_multi, |
| 2624 | .ndo_change_mtu = velocity_change_mtu, |
| 2625 | .ndo_do_ioctl = velocity_ioctl, |
| 2626 | .ndo_vlan_rx_add_vid = velocity_vlan_rx_add_vid, |
| 2627 | .ndo_vlan_rx_kill_vid = velocity_vlan_rx_kill_vid, |
| 2628 | .ndo_vlan_rx_register = velocity_vlan_rx_register, |
| 2629 | }; |
| 2630 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2631 | /** |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2632 | * velocity_init_info - init private data |
| 2633 | * @pdev: PCI device |
| 2634 | * @vptr: Velocity info |
| 2635 | * @info: Board type |
| 2636 | * |
| 2637 | * Set up the initial velocity_info struct for the device that has been |
| 2638 | * discovered. |
| 2639 | */ |
| 2640 | static void __devinit velocity_init_info(struct pci_dev *pdev, |
| 2641 | struct velocity_info *vptr, |
| 2642 | const struct velocity_info_tbl *info) |
| 2643 | { |
| 2644 | memset(vptr, 0, sizeof(struct velocity_info)); |
| 2645 | |
| 2646 | vptr->pdev = pdev; |
| 2647 | vptr->chip_id = info->chip_id; |
| 2648 | vptr->tx.numq = info->txqueue; |
| 2649 | vptr->multicast_limit = MCAM_SIZE; |
| 2650 | spin_lock_init(&vptr->lock); |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2651 | } |
| 2652 | |
| 2653 | /** |
| 2654 | * velocity_get_pci_info - retrieve PCI info for device |
| 2655 | * @vptr: velocity device |
| 2656 | * @pdev: PCI device it matches |
| 2657 | * |
| 2658 | * Retrieve the PCI configuration space data that interests us from |
| 2659 | * the kernel PCI layer |
| 2660 | */ |
| 2661 | static int __devinit velocity_get_pci_info(struct velocity_info *vptr, struct pci_dev *pdev) |
| 2662 | { |
| 2663 | vptr->rev_id = pdev->revision; |
| 2664 | |
| 2665 | pci_set_master(pdev); |
| 2666 | |
| 2667 | vptr->ioaddr = pci_resource_start(pdev, 0); |
| 2668 | vptr->memaddr = pci_resource_start(pdev, 1); |
| 2669 | |
| 2670 | if (!(pci_resource_flags(pdev, 0) & IORESOURCE_IO)) { |
| 2671 | dev_err(&pdev->dev, |
| 2672 | "region #0 is not an I/O resource, aborting.\n"); |
| 2673 | return -EINVAL; |
| 2674 | } |
| 2675 | |
| 2676 | if ((pci_resource_flags(pdev, 1) & IORESOURCE_IO)) { |
| 2677 | dev_err(&pdev->dev, |
| 2678 | "region #1 is an I/O resource, aborting.\n"); |
| 2679 | return -EINVAL; |
| 2680 | } |
| 2681 | |
| 2682 | if (pci_resource_len(pdev, 1) < VELOCITY_IO_SIZE) { |
| 2683 | dev_err(&pdev->dev, "region #1 is too small.\n"); |
| 2684 | return -EINVAL; |
| 2685 | } |
| 2686 | vptr->pdev = pdev; |
| 2687 | |
| 2688 | return 0; |
| 2689 | } |
| 2690 | |
| 2691 | /** |
| 2692 | * velocity_print_info - per driver data |
| 2693 | * @vptr: velocity |
| 2694 | * |
| 2695 | * Print per driver data as the kernel driver finds Velocity |
| 2696 | * hardware |
| 2697 | */ |
| 2698 | static void __devinit velocity_print_info(struct velocity_info *vptr) |
| 2699 | { |
| 2700 | struct net_device *dev = vptr->dev; |
| 2701 | |
| 2702 | printk(KERN_INFO "%s: %s\n", dev->name, get_chip_name(vptr->chip_id)); |
H Hartley Sweeten | aa7c68a | 2009-12-29 20:04:14 -0800 | [diff] [blame] | 2703 | printk(KERN_INFO "%s: Ethernet Address: %pM\n", |
| 2704 | dev->name, dev->dev_addr); |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2705 | } |
| 2706 | |
| 2707 | static u32 velocity_get_link(struct net_device *dev) |
| 2708 | { |
| 2709 | struct velocity_info *vptr = netdev_priv(dev); |
| 2710 | struct mac_regs __iomem *regs = vptr->mac_regs; |
| 2711 | return BYTE_REG_BITS_IS_ON(PHYSR0_LINKGD, ®s->PHYSR0) ? 1 : 0; |
| 2712 | } |
| 2713 | |
| 2714 | |
| 2715 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2716 | * velocity_found1 - set up discovered velocity card |
| 2717 | * @pdev: PCI device |
| 2718 | * @ent: PCI device table entry that matched |
| 2719 | * |
| 2720 | * Configure a discovered adapter from scratch. Return a negative |
| 2721 | * errno error code on failure paths. |
| 2722 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2723 | static int __devinit velocity_found1(struct pci_dev *pdev, const struct pci_device_id *ent) |
| 2724 | { |
| 2725 | static int first = 1; |
| 2726 | struct net_device *dev; |
| 2727 | int i; |
Sven Hartge | 07b5f6a | 2008-10-23 13:03:44 +0000 | [diff] [blame] | 2728 | const char *drv_string; |
Jeff Garzik | cabb766 | 2006-06-27 09:25:28 -0400 | [diff] [blame] | 2729 | const struct velocity_info_tbl *info = &chip_info_table[ent->driver_data]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2730 | struct velocity_info *vptr; |
Dave Jones | c406740 | 2009-07-20 17:35:21 +0000 | [diff] [blame] | 2731 | struct mac_regs __iomem *regs; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2732 | int ret = -ENOMEM; |
| 2733 | |
Jeff Garzik | e54f489 | 2006-06-27 09:20:08 -0400 | [diff] [blame] | 2734 | /* FIXME: this driver, like almost all other ethernet drivers, |
| 2735 | * can support more than MAX_UNITS. |
| 2736 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2737 | if (velocity_nics >= MAX_UNITS) { |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2738 | dev_notice(&pdev->dev, "already found %d NICs.\n", |
Jeff Garzik | e54f489 | 2006-06-27 09:20:08 -0400 | [diff] [blame] | 2739 | velocity_nics); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2740 | return -ENODEV; |
| 2741 | } |
| 2742 | |
| 2743 | dev = alloc_etherdev(sizeof(struct velocity_info)); |
Jeff Garzik | e54f489 | 2006-06-27 09:20:08 -0400 | [diff] [blame] | 2744 | if (!dev) { |
Jeff Garzik | 9b91cf9 | 2006-06-27 11:39:50 -0400 | [diff] [blame] | 2745 | dev_err(&pdev->dev, "allocate net device failed.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2746 | goto out; |
| 2747 | } |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2748 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2749 | /* Chain it all together */ |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2750 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2751 | SET_NETDEV_DEV(dev, &pdev->dev); |
Jeff Garzik | 8ab6f3f | 2006-06-27 08:56:23 -0400 | [diff] [blame] | 2752 | vptr = netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2753 | |
| 2754 | |
| 2755 | if (first) { |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2756 | printk(KERN_INFO "%s Ver. %s\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2757 | VELOCITY_FULL_DRV_NAM, VELOCITY_VERSION); |
| 2758 | printk(KERN_INFO "Copyright (c) 2002, 2003 VIA Networking Technologies, Inc.\n"); |
| 2759 | printk(KERN_INFO "Copyright (c) 2004 Red Hat Inc.\n"); |
| 2760 | first = 0; |
| 2761 | } |
| 2762 | |
| 2763 | velocity_init_info(pdev, vptr, info); |
| 2764 | |
| 2765 | vptr->dev = dev; |
| 2766 | |
| 2767 | dev->irq = pdev->irq; |
| 2768 | |
| 2769 | ret = pci_enable_device(pdev); |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2770 | if (ret < 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2771 | goto err_free_dev; |
| 2772 | |
| 2773 | ret = velocity_get_pci_info(vptr, pdev); |
| 2774 | if (ret < 0) { |
Jeff Garzik | e54f489 | 2006-06-27 09:20:08 -0400 | [diff] [blame] | 2775 | /* error message already printed */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2776 | goto err_disable; |
| 2777 | } |
| 2778 | |
| 2779 | ret = pci_request_regions(pdev, VELOCITY_NAME); |
| 2780 | if (ret < 0) { |
Jeff Garzik | 9b91cf9 | 2006-06-27 11:39:50 -0400 | [diff] [blame] | 2781 | dev_err(&pdev->dev, "No PCI resources.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2782 | goto err_disable; |
| 2783 | } |
| 2784 | |
Jeff Garzik | cabb766 | 2006-06-27 09:25:28 -0400 | [diff] [blame] | 2785 | regs = ioremap(vptr->memaddr, VELOCITY_IO_SIZE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2786 | if (regs == NULL) { |
| 2787 | ret = -EIO; |
| 2788 | goto err_release_res; |
| 2789 | } |
| 2790 | |
| 2791 | vptr->mac_regs = regs; |
| 2792 | |
| 2793 | mac_wol_reset(regs); |
| 2794 | |
| 2795 | dev->base_addr = vptr->ioaddr; |
| 2796 | |
| 2797 | for (i = 0; i < 6; i++) |
| 2798 | dev->dev_addr[i] = readb(®s->PAR[i]); |
| 2799 | |
| 2800 | |
Sven Hartge | 07b5f6a | 2008-10-23 13:03:44 +0000 | [diff] [blame] | 2801 | drv_string = dev_driver_string(&pdev->dev); |
| 2802 | |
| 2803 | velocity_get_options(&vptr->options, velocity_nics, drv_string); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2804 | |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2805 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2806 | * Mask out the options cannot be set to the chip |
| 2807 | */ |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2808 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2809 | vptr->options.flags &= info->flags; |
| 2810 | |
| 2811 | /* |
| 2812 | * Enable the chip specified capbilities |
| 2813 | */ |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2814 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2815 | vptr->flags = vptr->options.flags | (info->flags & 0xFF000000UL); |
| 2816 | |
| 2817 | vptr->wol_opts = vptr->options.wol_opts; |
| 2818 | vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED; |
| 2819 | |
| 2820 | vptr->phy_id = MII_GET_PHY_ID(vptr->mac_regs); |
| 2821 | |
| 2822 | dev->irq = pdev->irq; |
Stephen Hemminger | 39a11bd | 2008-11-19 22:19:33 -0800 | [diff] [blame] | 2823 | dev->netdev_ops = &velocity_netdev_ops; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2824 | dev->ethtool_ops = &velocity_ethtool_ops; |
Simon Kagstrom | dfff714 | 2009-11-25 22:10:26 +0000 | [diff] [blame] | 2825 | netif_napi_add(dev, &vptr->napi, velocity_poll, VELOCITY_NAPI_WEIGHT); |
Stephen Hemminger | 501e4d2 | 2007-08-24 13:56:49 -0700 | [diff] [blame] | 2826 | |
Francois Romieu | d4f73c8 | 2008-04-24 23:32:33 +0200 | [diff] [blame] | 2827 | dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_FILTER | |
Simon Kagstrom | b6ca430 | 2010-02-11 05:39:55 +0000 | [diff] [blame] | 2828 | NETIF_F_HW_VLAN_RX | NETIF_F_IP_CSUM | NETIF_F_SG; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2829 | |
| 2830 | ret = register_netdev(dev); |
| 2831 | if (ret < 0) |
| 2832 | goto err_iounmap; |
| 2833 | |
Séguier Régis | d3b238a | 2009-06-16 11:25:49 +0000 | [diff] [blame] | 2834 | if (!velocity_get_link(dev)) { |
Francois Romieu | 8a22ddd | 2006-06-23 00:47:06 +0200 | [diff] [blame] | 2835 | netif_carrier_off(dev); |
Séguier Régis | d3b238a | 2009-06-16 11:25:49 +0000 | [diff] [blame] | 2836 | vptr->mii_status |= VELOCITY_LINK_FAIL; |
| 2837 | } |
Francois Romieu | 8a22ddd | 2006-06-23 00:47:06 +0200 | [diff] [blame] | 2838 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2839 | velocity_print_info(vptr); |
| 2840 | pci_set_drvdata(pdev, dev); |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2841 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2842 | /* and leave the chip powered down */ |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2843 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2844 | pci_set_power_state(pdev, PCI_D3hot); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2845 | velocity_nics++; |
| 2846 | out: |
| 2847 | return ret; |
| 2848 | |
| 2849 | err_iounmap: |
| 2850 | iounmap(regs); |
| 2851 | err_release_res: |
| 2852 | pci_release_regions(pdev); |
| 2853 | err_disable: |
| 2854 | pci_disable_device(pdev); |
| 2855 | err_free_dev: |
| 2856 | free_netdev(dev); |
| 2857 | goto out; |
| 2858 | } |
| 2859 | |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2860 | |
| 2861 | #ifdef CONFIG_PM |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2862 | /** |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2863 | * wol_calc_crc - WOL CRC |
| 2864 | * @pattern: data pattern |
| 2865 | * @mask_pattern: mask |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2866 | * |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2867 | * Compute the wake on lan crc hashes for the packet header |
| 2868 | * we are interested in. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2869 | */ |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2870 | static u16 wol_calc_crc(int size, u8 *pattern, u8 *mask_pattern) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2871 | { |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2872 | u16 crc = 0xFFFF; |
| 2873 | u8 mask; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2874 | int i, j; |
| 2875 | |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2876 | for (i = 0; i < size; i++) { |
| 2877 | mask = mask_pattern[i]; |
| 2878 | |
| 2879 | /* Skip this loop if the mask equals to zero */ |
| 2880 | if (mask == 0x00) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2881 | continue; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2882 | |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2883 | for (j = 0; j < 8; j++) { |
| 2884 | if ((mask & 0x01) == 0) { |
| 2885 | mask >>= 1; |
| 2886 | continue; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2887 | } |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2888 | mask >>= 1; |
| 2889 | crc = crc_ccitt(crc, &(pattern[i * 8 + j]), 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2890 | } |
| 2891 | } |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2892 | /* Finally, invert the result once to get the correct data */ |
| 2893 | crc = ~crc; |
| 2894 | return bitrev32(crc) >> 16; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2895 | } |
| 2896 | |
| 2897 | /** |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2898 | * velocity_set_wol - set up for wake on lan |
| 2899 | * @vptr: velocity to set WOL status on |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2900 | * |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2901 | * Set a card up for wake on lan either by unicast or by |
| 2902 | * ARP packet. |
| 2903 | * |
| 2904 | * FIXME: check static buffer is safe here |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2905 | */ |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2906 | static int velocity_set_wol(struct velocity_info *vptr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2907 | { |
Dave Jones | c406740 | 2009-07-20 17:35:21 +0000 | [diff] [blame] | 2908 | struct mac_regs __iomem *regs = vptr->mac_regs; |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2909 | static u8 buf[256]; |
| 2910 | int i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2911 | |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2912 | static u32 mask_pattern[2][4] = { |
| 2913 | {0x00203000, 0x000003C0, 0x00000000, 0x0000000}, /* ARP */ |
| 2914 | {0xfffff000, 0xffffffff, 0xffffffff, 0x000ffff} /* Magic Packet */ |
| 2915 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2916 | |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2917 | writew(0xFFFF, ®s->WOLCRClr); |
| 2918 | writeb(WOLCFG_SAB | WOLCFG_SAM, ®s->WOLCFGSet); |
| 2919 | writew(WOLCR_MAGIC_EN, ®s->WOLCRSet); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2920 | |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2921 | /* |
| 2922 | if (vptr->wol_opts & VELOCITY_WOL_PHY) |
| 2923 | writew((WOLCR_LINKON_EN|WOLCR_LINKOFF_EN), ®s->WOLCRSet); |
| 2924 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2925 | |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2926 | if (vptr->wol_opts & VELOCITY_WOL_UCAST) |
| 2927 | writew(WOLCR_UNICAST_EN, ®s->WOLCRSet); |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2928 | |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2929 | if (vptr->wol_opts & VELOCITY_WOL_ARP) { |
| 2930 | struct arp_packet *arp = (struct arp_packet *) buf; |
| 2931 | u16 crc; |
| 2932 | memset(buf, 0, sizeof(struct arp_packet) + 7); |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2933 | |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2934 | for (i = 0; i < 4; i++) |
| 2935 | writel(mask_pattern[0][i], ®s->ByteMask[0][i]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2936 | |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2937 | arp->type = htons(ETH_P_ARP); |
| 2938 | arp->ar_op = htons(1); |
| 2939 | |
| 2940 | memcpy(arp->ar_tip, vptr->ip_addr, 4); |
| 2941 | |
| 2942 | crc = wol_calc_crc((sizeof(struct arp_packet) + 7) / 8, buf, |
| 2943 | (u8 *) & mask_pattern[0][0]); |
| 2944 | |
| 2945 | writew(crc, ®s->PatternCRC[0]); |
| 2946 | writew(WOLCR_ARP_EN, ®s->WOLCRSet); |
| 2947 | } |
| 2948 | |
| 2949 | BYTE_REG_BITS_ON(PWCFG_WOLTYPE, ®s->PWCFGSet); |
| 2950 | BYTE_REG_BITS_ON(PWCFG_LEGACY_WOLEN, ®s->PWCFGSet); |
| 2951 | |
| 2952 | writew(0x0FFF, ®s->WOLSRClr); |
| 2953 | |
| 2954 | if (vptr->mii_status & VELOCITY_AUTONEG_ENABLE) { |
| 2955 | if (PHYID_GET_PHY_ID(vptr->phy_id) == PHYID_CICADA_CS8201) |
| 2956 | MII_REG_BITS_ON(AUXCR_MDPPS, MII_REG_AUXCR, vptr->mac_regs); |
| 2957 | |
| 2958 | MII_REG_BITS_OFF(G1000CR_1000FD | G1000CR_1000, MII_REG_G1000CR, vptr->mac_regs); |
| 2959 | } |
| 2960 | |
| 2961 | if (vptr->mii_status & VELOCITY_SPEED_1000) |
| 2962 | MII_REG_BITS_ON(BMCR_REAUTO, MII_REG_BMCR, vptr->mac_regs); |
| 2963 | |
| 2964 | BYTE_REG_BITS_ON(CHIPGCR_FCMODE, ®s->CHIPGCR); |
| 2965 | |
| 2966 | { |
| 2967 | u8 GCR; |
| 2968 | GCR = readb(®s->CHIPGCR); |
| 2969 | GCR = (GCR & ~CHIPGCR_FCGMII) | CHIPGCR_FCFDX; |
| 2970 | writeb(GCR, ®s->CHIPGCR); |
| 2971 | } |
| 2972 | |
| 2973 | BYTE_REG_BITS_OFF(ISR_PWEI, ®s->ISR); |
| 2974 | /* Turn on SWPTAG just before entering power mode */ |
| 2975 | BYTE_REG_BITS_ON(STICKHW_SWPTAG, ®s->STICKHW); |
| 2976 | /* Go to bed ..... */ |
| 2977 | BYTE_REG_BITS_ON((STICKHW_DS1 | STICKHW_DS0), ®s->STICKHW); |
| 2978 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2979 | return 0; |
| 2980 | } |
| 2981 | |
| 2982 | /** |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2983 | * velocity_save_context - save registers |
| 2984 | * @vptr: velocity |
| 2985 | * @context: buffer for stored context |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2986 | * |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2987 | * Retrieve the current configuration from the velocity hardware |
| 2988 | * and stash it in the context structure, for use by the context |
| 2989 | * restore functions. This allows us to save things we need across |
| 2990 | * power down states |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2991 | */ |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2992 | static void velocity_save_context(struct velocity_info *vptr, struct velocity_context *context) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2993 | { |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 2994 | struct mac_regs __iomem *regs = vptr->mac_regs; |
| 2995 | u16 i; |
| 2996 | u8 __iomem *ptr = (u8 __iomem *)regs; |
| 2997 | |
| 2998 | for (i = MAC_REG_PAR; i < MAC_REG_CR0_CLR; i += 4) |
| 2999 | *((u32 *) (context->mac_reg + i)) = readl(ptr + i); |
| 3000 | |
| 3001 | for (i = MAC_REG_MAR; i < MAC_REG_TDCSR_CLR; i += 4) |
| 3002 | *((u32 *) (context->mac_reg + i)) = readl(ptr + i); |
| 3003 | |
| 3004 | for (i = MAC_REG_RDBASE_LO; i < MAC_REG_FIFO_TEST0; i += 4) |
| 3005 | *((u32 *) (context->mac_reg + i)) = readl(ptr + i); |
| 3006 | |
| 3007 | } |
| 3008 | |
| 3009 | static int velocity_suspend(struct pci_dev *pdev, pm_message_t state) |
| 3010 | { |
| 3011 | struct net_device *dev = pci_get_drvdata(pdev); |
Jeff Garzik | 8ab6f3f | 2006-06-27 08:56:23 -0400 | [diff] [blame] | 3012 | struct velocity_info *vptr = netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3013 | unsigned long flags; |
Francois Romieu | 580a690 | 2008-07-11 00:03:44 +0200 | [diff] [blame] | 3014 | |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 3015 | if (!netif_running(vptr->dev)) |
| 3016 | return 0; |
Francois Romieu | 580a690 | 2008-07-11 00:03:44 +0200 | [diff] [blame] | 3017 | |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 3018 | netif_device_detach(vptr->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3019 | |
| 3020 | spin_lock_irqsave(&vptr->lock, flags); |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 3021 | pci_save_state(pdev); |
| 3022 | #ifdef ETHTOOL_GWOL |
| 3023 | if (vptr->flags & VELOCITY_FLAGS_WOL_ENABLED) { |
| 3024 | velocity_get_ip(vptr); |
| 3025 | velocity_save_context(vptr, &vptr->context); |
| 3026 | velocity_shutdown(vptr); |
| 3027 | velocity_set_wol(vptr); |
| 3028 | pci_enable_wake(pdev, PCI_D3hot, 1); |
| 3029 | pci_set_power_state(pdev, PCI_D3hot); |
| 3030 | } else { |
| 3031 | velocity_save_context(vptr, &vptr->context); |
| 3032 | velocity_shutdown(vptr); |
| 3033 | pci_disable_device(pdev); |
| 3034 | pci_set_power_state(pdev, pci_choose_state(pdev, state)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3035 | } |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 3036 | #else |
| 3037 | pci_set_power_state(pdev, pci_choose_state(pdev, state)); |
| 3038 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3039 | spin_unlock_irqrestore(&vptr->lock, flags); |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 3040 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3041 | } |
| 3042 | |
| 3043 | /** |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 3044 | * velocity_restore_context - restore registers |
| 3045 | * @vptr: velocity |
| 3046 | * @context: buffer for stored context |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3047 | * |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 3048 | * Reload the register configuration from the velocity context |
| 3049 | * created by velocity_save_context. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3050 | */ |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 3051 | static void velocity_restore_context(struct velocity_info *vptr, struct velocity_context *context) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3052 | { |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 3053 | struct mac_regs __iomem *regs = vptr->mac_regs; |
| 3054 | int i; |
| 3055 | u8 __iomem *ptr = (u8 __iomem *)regs; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3056 | |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 3057 | for (i = MAC_REG_PAR; i < MAC_REG_CR0_SET; i += 4) |
| 3058 | writel(*((u32 *) (context->mac_reg + i)), ptr + i); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3059 | |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 3060 | /* Just skip cr0 */ |
| 3061 | for (i = MAC_REG_CR1_SET; i < MAC_REG_CR0_CLR; i++) { |
| 3062 | /* Clear */ |
| 3063 | writeb(~(*((u8 *) (context->mac_reg + i))), ptr + i + 4); |
| 3064 | /* Set */ |
| 3065 | writeb(*((u8 *) (context->mac_reg + i)), ptr + i); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3066 | } |
| 3067 | |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 3068 | for (i = MAC_REG_MAR; i < MAC_REG_IMR; i += 4) |
| 3069 | writel(*((u32 *) (context->mac_reg + i)), ptr + i); |
| 3070 | |
| 3071 | for (i = MAC_REG_RDBASE_LO; i < MAC_REG_FIFO_TEST0; i += 4) |
| 3072 | writel(*((u32 *) (context->mac_reg + i)), ptr + i); |
| 3073 | |
| 3074 | for (i = MAC_REG_TDCSR_SET; i <= MAC_REG_RDCSR_SET; i++) |
| 3075 | writeb(*((u8 *) (context->mac_reg + i)), ptr + i); |
| 3076 | } |
| 3077 | |
| 3078 | static int velocity_resume(struct pci_dev *pdev) |
| 3079 | { |
| 3080 | struct net_device *dev = pci_get_drvdata(pdev); |
| 3081 | struct velocity_info *vptr = netdev_priv(dev); |
| 3082 | unsigned long flags; |
| 3083 | int i; |
| 3084 | |
| 3085 | if (!netif_running(vptr->dev)) |
| 3086 | return 0; |
| 3087 | |
| 3088 | pci_set_power_state(pdev, PCI_D0); |
| 3089 | pci_enable_wake(pdev, 0, 0); |
| 3090 | pci_restore_state(pdev); |
| 3091 | |
| 3092 | mac_wol_reset(vptr->mac_regs); |
| 3093 | |
| 3094 | spin_lock_irqsave(&vptr->lock, flags); |
| 3095 | velocity_restore_context(vptr, &vptr->context); |
| 3096 | velocity_init_registers(vptr, VELOCITY_INIT_WOL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3097 | mac_disable_int(vptr->mac_regs); |
| 3098 | |
Simon Kagstrom | d6cade0 | 2010-02-09 23:37:54 +0000 | [diff] [blame] | 3099 | velocity_tx_srv(vptr); |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 3100 | |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 3101 | for (i = 0; i < vptr->tx.numq; i++) { |
| 3102 | if (vptr->tx.used[i]) |
| 3103 | mac_tx_queue_wake(vptr->mac_regs, i); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3104 | } |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 3105 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3106 | mac_enable_int(vptr->mac_regs); |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 3107 | spin_unlock_irqrestore(&vptr->lock, flags); |
| 3108 | netif_device_attach(vptr->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3109 | |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 3110 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3111 | } |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 3112 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3113 | |
| 3114 | /* |
| 3115 | * Definition for our device driver. The PCI layer interface |
| 3116 | * uses this to handle all our card discover and plugging |
| 3117 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3118 | static struct pci_driver velocity_driver = { |
| 3119 | .name = VELOCITY_NAME, |
| 3120 | .id_table = velocity_id_table, |
| 3121 | .probe = velocity_found1, |
| 3122 | .remove = __devexit_p(velocity_remove1), |
| 3123 | #ifdef CONFIG_PM |
| 3124 | .suspend = velocity_suspend, |
| 3125 | .resume = velocity_resume, |
| 3126 | #endif |
| 3127 | }; |
| 3128 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3129 | |
| 3130 | /** |
| 3131 | * velocity_ethtool_up - pre hook for ethtool |
| 3132 | * @dev: network device |
| 3133 | * |
| 3134 | * Called before an ethtool operation. We need to make sure the |
| 3135 | * chip is out of D3 state before we poke at it. |
| 3136 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3137 | static int velocity_ethtool_up(struct net_device *dev) |
| 3138 | { |
Jeff Garzik | 8ab6f3f | 2006-06-27 08:56:23 -0400 | [diff] [blame] | 3139 | struct velocity_info *vptr = netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3140 | if (!netif_running(dev)) |
| 3141 | pci_set_power_state(vptr->pdev, PCI_D0); |
| 3142 | return 0; |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 3143 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3144 | |
| 3145 | /** |
| 3146 | * velocity_ethtool_down - post hook for ethtool |
| 3147 | * @dev: network device |
| 3148 | * |
| 3149 | * Called after an ethtool operation. Restore the chip back to D3 |
| 3150 | * state if it isn't running. |
| 3151 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3152 | static void velocity_ethtool_down(struct net_device *dev) |
| 3153 | { |
Jeff Garzik | 8ab6f3f | 2006-06-27 08:56:23 -0400 | [diff] [blame] | 3154 | struct velocity_info *vptr = netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3155 | if (!netif_running(dev)) |
| 3156 | pci_set_power_state(vptr->pdev, PCI_D3hot); |
| 3157 | } |
| 3158 | |
| 3159 | static int velocity_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
| 3160 | { |
Jeff Garzik | 8ab6f3f | 2006-06-27 08:56:23 -0400 | [diff] [blame] | 3161 | struct velocity_info *vptr = netdev_priv(dev); |
Dave Jones | c406740 | 2009-07-20 17:35:21 +0000 | [diff] [blame] | 3162 | struct mac_regs __iomem *regs = vptr->mac_regs; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3163 | u32 status; |
| 3164 | status = check_connection_type(vptr->mac_regs); |
| 3165 | |
Jay Cliburn | 59b693f | 2006-07-20 23:23:57 +0200 | [diff] [blame] | 3166 | cmd->supported = SUPPORTED_TP | |
| 3167 | SUPPORTED_Autoneg | |
| 3168 | SUPPORTED_10baseT_Half | |
| 3169 | SUPPORTED_10baseT_Full | |
| 3170 | SUPPORTED_100baseT_Half | |
| 3171 | SUPPORTED_100baseT_Full | |
| 3172 | SUPPORTED_1000baseT_Half | |
| 3173 | SUPPORTED_1000baseT_Full; |
| 3174 | if (status & VELOCITY_SPEED_1000) |
| 3175 | cmd->speed = SPEED_1000; |
| 3176 | else if (status & VELOCITY_SPEED_100) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3177 | cmd->speed = SPEED_100; |
| 3178 | else |
| 3179 | cmd->speed = SPEED_10; |
| 3180 | cmd->autoneg = (status & VELOCITY_AUTONEG_ENABLE) ? AUTONEG_ENABLE : AUTONEG_DISABLE; |
| 3181 | cmd->port = PORT_TP; |
| 3182 | cmd->transceiver = XCVR_INTERNAL; |
| 3183 | cmd->phy_address = readb(®s->MIIADR) & 0x1F; |
| 3184 | |
| 3185 | if (status & VELOCITY_DUPLEX_FULL) |
| 3186 | cmd->duplex = DUPLEX_FULL; |
| 3187 | else |
| 3188 | cmd->duplex = DUPLEX_HALF; |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 3189 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3190 | return 0; |
| 3191 | } |
| 3192 | |
| 3193 | static int velocity_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
| 3194 | { |
Jeff Garzik | 8ab6f3f | 2006-06-27 08:56:23 -0400 | [diff] [blame] | 3195 | struct velocity_info *vptr = netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3196 | u32 curr_status; |
| 3197 | u32 new_status = 0; |
| 3198 | int ret = 0; |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 3199 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3200 | curr_status = check_connection_type(vptr->mac_regs); |
| 3201 | curr_status &= (~VELOCITY_LINK_FAIL); |
| 3202 | |
| 3203 | new_status |= ((cmd->autoneg) ? VELOCITY_AUTONEG_ENABLE : 0); |
| 3204 | new_status |= ((cmd->speed == SPEED_100) ? VELOCITY_SPEED_100 : 0); |
| 3205 | new_status |= ((cmd->speed == SPEED_10) ? VELOCITY_SPEED_10 : 0); |
| 3206 | new_status |= ((cmd->duplex == DUPLEX_FULL) ? VELOCITY_DUPLEX_FULL : 0); |
| 3207 | |
| 3208 | if ((new_status & VELOCITY_AUTONEG_ENABLE) && (new_status != (curr_status | VELOCITY_AUTONEG_ENABLE))) |
| 3209 | ret = -EINVAL; |
| 3210 | else |
| 3211 | velocity_set_media_mode(vptr, new_status); |
| 3212 | |
| 3213 | return ret; |
| 3214 | } |
| 3215 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3216 | static void velocity_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) |
| 3217 | { |
Jeff Garzik | 8ab6f3f | 2006-06-27 08:56:23 -0400 | [diff] [blame] | 3218 | struct velocity_info *vptr = netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3219 | strcpy(info->driver, VELOCITY_NAME); |
| 3220 | strcpy(info->version, VELOCITY_VERSION); |
| 3221 | strcpy(info->bus_info, pci_name(vptr->pdev)); |
| 3222 | } |
| 3223 | |
| 3224 | static void velocity_ethtool_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) |
| 3225 | { |
Jeff Garzik | 8ab6f3f | 2006-06-27 08:56:23 -0400 | [diff] [blame] | 3226 | struct velocity_info *vptr = netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3227 | wol->supported = WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_ARP; |
| 3228 | wol->wolopts |= WAKE_MAGIC; |
| 3229 | /* |
| 3230 | if (vptr->wol_opts & VELOCITY_WOL_PHY) |
| 3231 | wol.wolopts|=WAKE_PHY; |
| 3232 | */ |
| 3233 | if (vptr->wol_opts & VELOCITY_WOL_UCAST) |
| 3234 | wol->wolopts |= WAKE_UCAST; |
| 3235 | if (vptr->wol_opts & VELOCITY_WOL_ARP) |
| 3236 | wol->wolopts |= WAKE_ARP; |
| 3237 | memcpy(&wol->sopass, vptr->wol_passwd, 6); |
| 3238 | } |
| 3239 | |
| 3240 | static int velocity_ethtool_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) |
| 3241 | { |
Jeff Garzik | 8ab6f3f | 2006-06-27 08:56:23 -0400 | [diff] [blame] | 3242 | struct velocity_info *vptr = netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3243 | |
| 3244 | if (!(wol->wolopts & (WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_ARP))) |
| 3245 | return -EFAULT; |
| 3246 | vptr->wol_opts = VELOCITY_WOL_MAGIC; |
| 3247 | |
| 3248 | /* |
| 3249 | if (wol.wolopts & WAKE_PHY) { |
| 3250 | vptr->wol_opts|=VELOCITY_WOL_PHY; |
| 3251 | vptr->flags |=VELOCITY_FLAGS_WOL_ENABLED; |
| 3252 | } |
| 3253 | */ |
| 3254 | |
| 3255 | if (wol->wolopts & WAKE_MAGIC) { |
| 3256 | vptr->wol_opts |= VELOCITY_WOL_MAGIC; |
| 3257 | vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED; |
| 3258 | } |
| 3259 | if (wol->wolopts & WAKE_UCAST) { |
| 3260 | vptr->wol_opts |= VELOCITY_WOL_UCAST; |
| 3261 | vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED; |
| 3262 | } |
| 3263 | if (wol->wolopts & WAKE_ARP) { |
| 3264 | vptr->wol_opts |= VELOCITY_WOL_ARP; |
| 3265 | vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED; |
| 3266 | } |
| 3267 | memcpy(vptr->wol_passwd, wol->sopass, 6); |
| 3268 | return 0; |
| 3269 | } |
| 3270 | |
| 3271 | static u32 velocity_get_msglevel(struct net_device *dev) |
| 3272 | { |
| 3273 | return msglevel; |
| 3274 | } |
| 3275 | |
| 3276 | static void velocity_set_msglevel(struct net_device *dev, u32 value) |
| 3277 | { |
| 3278 | msglevel = value; |
| 3279 | } |
| 3280 | |
Simon Kagstrom | 6dfc4b9 | 2009-11-25 22:10:12 +0000 | [diff] [blame] | 3281 | static int get_pending_timer_val(int val) |
| 3282 | { |
| 3283 | int mult_bits = val >> 6; |
| 3284 | int mult = 1; |
| 3285 | |
| 3286 | switch (mult_bits) |
| 3287 | { |
| 3288 | case 1: |
| 3289 | mult = 4; break; |
| 3290 | case 2: |
| 3291 | mult = 16; break; |
| 3292 | case 3: |
| 3293 | mult = 64; break; |
| 3294 | case 0: |
| 3295 | default: |
| 3296 | break; |
| 3297 | } |
| 3298 | |
| 3299 | return (val & 0x3f) * mult; |
| 3300 | } |
| 3301 | |
| 3302 | static void set_pending_timer_val(int *val, u32 us) |
| 3303 | { |
| 3304 | u8 mult = 0; |
| 3305 | u8 shift = 0; |
| 3306 | |
| 3307 | if (us >= 0x3f) { |
| 3308 | mult = 1; /* mult with 4 */ |
| 3309 | shift = 2; |
| 3310 | } |
| 3311 | if (us >= 0x3f * 4) { |
| 3312 | mult = 2; /* mult with 16 */ |
| 3313 | shift = 4; |
| 3314 | } |
| 3315 | if (us >= 0x3f * 16) { |
| 3316 | mult = 3; /* mult with 64 */ |
| 3317 | shift = 6; |
| 3318 | } |
| 3319 | |
| 3320 | *val = (mult << 6) | ((us >> shift) & 0x3f); |
| 3321 | } |
| 3322 | |
| 3323 | |
| 3324 | static int velocity_get_coalesce(struct net_device *dev, |
| 3325 | struct ethtool_coalesce *ecmd) |
| 3326 | { |
| 3327 | struct velocity_info *vptr = netdev_priv(dev); |
| 3328 | |
| 3329 | ecmd->tx_max_coalesced_frames = vptr->options.tx_intsup; |
| 3330 | ecmd->rx_max_coalesced_frames = vptr->options.rx_intsup; |
| 3331 | |
| 3332 | ecmd->rx_coalesce_usecs = get_pending_timer_val(vptr->options.rxqueue_timer); |
| 3333 | ecmd->tx_coalesce_usecs = get_pending_timer_val(vptr->options.txqueue_timer); |
| 3334 | |
| 3335 | return 0; |
| 3336 | } |
| 3337 | |
| 3338 | static int velocity_set_coalesce(struct net_device *dev, |
| 3339 | struct ethtool_coalesce *ecmd) |
| 3340 | { |
| 3341 | struct velocity_info *vptr = netdev_priv(dev); |
| 3342 | int max_us = 0x3f * 64; |
Simon Kagstrom | 39c2ff4 | 2010-02-09 23:38:07 +0000 | [diff] [blame] | 3343 | unsigned long flags; |
Simon Kagstrom | 6dfc4b9 | 2009-11-25 22:10:12 +0000 | [diff] [blame] | 3344 | |
| 3345 | /* 6 bits of */ |
| 3346 | if (ecmd->tx_coalesce_usecs > max_us) |
| 3347 | return -EINVAL; |
| 3348 | if (ecmd->rx_coalesce_usecs > max_us) |
| 3349 | return -EINVAL; |
| 3350 | |
| 3351 | if (ecmd->tx_max_coalesced_frames > 0xff) |
| 3352 | return -EINVAL; |
| 3353 | if (ecmd->rx_max_coalesced_frames > 0xff) |
| 3354 | return -EINVAL; |
| 3355 | |
| 3356 | vptr->options.rx_intsup = ecmd->rx_max_coalesced_frames; |
| 3357 | vptr->options.tx_intsup = ecmd->tx_max_coalesced_frames; |
| 3358 | |
| 3359 | set_pending_timer_val(&vptr->options.rxqueue_timer, |
| 3360 | ecmd->rx_coalesce_usecs); |
| 3361 | set_pending_timer_val(&vptr->options.txqueue_timer, |
| 3362 | ecmd->tx_coalesce_usecs); |
| 3363 | |
| 3364 | /* Setup the interrupt suppression and queue timers */ |
Simon Kagstrom | 39c2ff4 | 2010-02-09 23:38:07 +0000 | [diff] [blame] | 3365 | spin_lock_irqsave(&vptr->lock, flags); |
Simon Kagstrom | 6dfc4b9 | 2009-11-25 22:10:12 +0000 | [diff] [blame] | 3366 | mac_disable_int(vptr->mac_regs); |
| 3367 | setup_adaptive_interrupts(vptr); |
| 3368 | setup_queue_timers(vptr); |
| 3369 | |
| 3370 | mac_write_int_mask(vptr->int_mask, vptr->mac_regs); |
| 3371 | mac_clear_isr(vptr->mac_regs); |
| 3372 | mac_enable_int(vptr->mac_regs); |
Simon Kagstrom | 39c2ff4 | 2010-02-09 23:38:07 +0000 | [diff] [blame] | 3373 | spin_unlock_irqrestore(&vptr->lock, flags); |
Simon Kagstrom | 6dfc4b9 | 2009-11-25 22:10:12 +0000 | [diff] [blame] | 3374 | |
| 3375 | return 0; |
| 3376 | } |
| 3377 | |
Jeff Garzik | 7282d49 | 2006-09-13 14:30:00 -0400 | [diff] [blame] | 3378 | static const struct ethtool_ops velocity_ethtool_ops = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3379 | .get_settings = velocity_get_settings, |
| 3380 | .set_settings = velocity_set_settings, |
| 3381 | .get_drvinfo = velocity_get_drvinfo, |
Simon Kagstrom | b06f78f | 2009-11-25 22:10:52 +0000 | [diff] [blame] | 3382 | .set_tx_csum = ethtool_op_set_tx_csum, |
| 3383 | .get_tx_csum = ethtool_op_get_tx_csum, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3384 | .get_wol = velocity_ethtool_get_wol, |
| 3385 | .set_wol = velocity_ethtool_set_wol, |
| 3386 | .get_msglevel = velocity_get_msglevel, |
| 3387 | .set_msglevel = velocity_set_msglevel, |
Simon Kagstrom | c79992f | 2009-11-25 22:10:43 +0000 | [diff] [blame] | 3388 | .set_sg = ethtool_op_set_sg, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3389 | .get_link = velocity_get_link, |
Simon Kagstrom | 6dfc4b9 | 2009-11-25 22:10:12 +0000 | [diff] [blame] | 3390 | .get_coalesce = velocity_get_coalesce, |
| 3391 | .set_coalesce = velocity_set_coalesce, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3392 | .begin = velocity_ethtool_up, |
| 3393 | .complete = velocity_ethtool_down |
| 3394 | }; |
| 3395 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3396 | #ifdef CONFIG_PM |
Randy Dunlap | ce9f7fe | 2006-12-18 21:21:10 -0800 | [diff] [blame] | 3397 | #ifdef CONFIG_INET |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3398 | static int velocity_netdev_event(struct notifier_block *nb, unsigned long notification, void *ptr) |
| 3399 | { |
| 3400 | struct in_ifaddr *ifa = (struct in_ifaddr *) ptr; |
Denis V. Lunev | a337499 | 2008-02-28 20:44:27 -0800 | [diff] [blame] | 3401 | struct net_device *dev = ifa->ifa_dev->dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3402 | |
Ben Hutchings | 516b4df | 2009-10-28 04:01:46 -0700 | [diff] [blame] | 3403 | if (dev_net(dev) == &init_net && |
| 3404 | dev->netdev_ops == &velocity_netdev_ops) |
| 3405 | velocity_get_ip(netdev_priv(dev)); |
Denis V. Lunev | a337499 | 2008-02-28 20:44:27 -0800 | [diff] [blame] | 3406 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3407 | return NOTIFY_DONE; |
| 3408 | } |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 3409 | #endif /* CONFIG_INET */ |
| 3410 | #endif /* CONFIG_PM */ |
Randy Dunlap | ce9f7fe | 2006-12-18 21:21:10 -0800 | [diff] [blame] | 3411 | |
Dave Jones | 2cf71d2 | 2009-07-23 18:11:12 -0700 | [diff] [blame] | 3412 | #if defined(CONFIG_PM) && defined(CONFIG_INET) |
| 3413 | static struct notifier_block velocity_inetaddr_notifier = { |
| 3414 | .notifier_call = velocity_netdev_event, |
| 3415 | }; |
| 3416 | |
| 3417 | static void velocity_register_notifier(void) |
| 3418 | { |
| 3419 | register_inetaddr_notifier(&velocity_inetaddr_notifier); |
| 3420 | } |
| 3421 | |
| 3422 | static void velocity_unregister_notifier(void) |
| 3423 | { |
| 3424 | unregister_inetaddr_notifier(&velocity_inetaddr_notifier); |
| 3425 | } |
| 3426 | |
| 3427 | #else |
| 3428 | |
| 3429 | #define velocity_register_notifier() do {} while (0) |
| 3430 | #define velocity_unregister_notifier() do {} while (0) |
| 3431 | |
| 3432 | #endif /* defined(CONFIG_PM) && defined(CONFIG_INET) */ |
| 3433 | |
| 3434 | /** |
| 3435 | * velocity_init_module - load time function |
| 3436 | * |
| 3437 | * Called when the velocity module is loaded. The PCI driver |
| 3438 | * is registered with the PCI layer, and in turn will call |
| 3439 | * the probe functions for each velocity adapter installed |
| 3440 | * in the system. |
| 3441 | */ |
| 3442 | static int __init velocity_init_module(void) |
| 3443 | { |
| 3444 | int ret; |
| 3445 | |
| 3446 | velocity_register_notifier(); |
| 3447 | ret = pci_register_driver(&velocity_driver); |
| 3448 | if (ret < 0) |
| 3449 | velocity_unregister_notifier(); |
| 3450 | return ret; |
| 3451 | } |
| 3452 | |
| 3453 | /** |
| 3454 | * velocity_cleanup - module unload |
| 3455 | * |
| 3456 | * When the velocity hardware is unloaded this function is called. |
| 3457 | * It will clean up the notifiers and the unregister the PCI |
| 3458 | * driver interface for this hardware. This in turn cleans up |
| 3459 | * all discovered interfaces before returning from the function |
| 3460 | */ |
| 3461 | static void __exit velocity_cleanup_module(void) |
| 3462 | { |
| 3463 | velocity_unregister_notifier(); |
| 3464 | pci_unregister_driver(&velocity_driver); |
| 3465 | } |
| 3466 | |
| 3467 | module_init(velocity_init_module); |
| 3468 | module_exit(velocity_cleanup_module); |