Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1 | /* |
| 2 | * tc35815.c: A TOSHIBA TC35815CF PCI 10/100Mbps ethernet driver for linux. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3 | * |
| 4 | * Based on skelton.c by Donald Becker. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5 | * |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 6 | * This driver is a replacement of older and less maintained version. |
| 7 | * This is a header of the older version: |
| 8 | * -----<snip>----- |
| 9 | * Copyright 2001 MontaVista Software Inc. |
| 10 | * Author: MontaVista Software, Inc. |
| 11 | * ahennessy@mvista.com |
| 12 | * Copyright (C) 2000-2001 Toshiba Corporation |
| 13 | * static const char *version = |
| 14 | * "tc35815.c:v0.00 26/07/2000 by Toshiba Corporation\n"; |
| 15 | * -----<snip>----- |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 16 | * |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 17 | * This file is subject to the terms and conditions of the GNU General Public |
| 18 | * License. See the file "COPYING" in the main directory of this archive |
| 19 | * for more details. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 20 | * |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 21 | * (C) Copyright TOSHIBA CORPORATION 2004-2005 |
| 22 | * All Rights Reserved. |
| 23 | * |
| 24 | * Revision History: |
| 25 | * 1.13 64-bit proof. |
| 26 | * 1.14 Do not round-up transmit length. |
| 27 | * 1.15 Define TC35815_DMA_SYNC_ONDEMAND, cleanup. |
| 28 | * 1.16 Fix free_page bug introduced in 1.15 |
| 29 | * 1.17 Add mii/ethtool ioctl support. |
| 30 | * Remove workaround for early TX4938. Cleanup. |
| 31 | * 1.20 Kernel 2.6. |
| 32 | * 1.21 Fix receive packet length (omit CRC). |
| 33 | * Call netif_carrier_on/netif_carrier_off. |
| 34 | * Add kernel/module options (speed, duplex, doforce). |
| 35 | * Do not try "force link mode" by default. |
| 36 | * Reconfigure CAM on restarting. |
| 37 | * Reset PHY on restarting. |
| 38 | * Add workaround for 100MHalf HUB. |
| 39 | * 1.22 Minor fix. |
| 40 | * 1.23 Minor cleanup. |
| 41 | * 1.24 Remove tc35815_setup since new stype option |
| 42 | * ("tc35815.speed=10", etc.) can be used for 2.6 kernel. |
| 43 | * 1.25 TX4939 support. |
| 44 | * 1.26 Minor cleanup. |
| 45 | * 1.27 Move TX4939 PCFG.SPEEDn control code out from this driver. |
| 46 | * Cleanup init_dev_addr. (NETDEV_REGISTER event notifier |
| 47 | * can overwrite dev_addr) |
| 48 | * support ETHTOOL_GPERMADDR. |
| 49 | * 1.28 Minor cleanup. |
| 50 | * 1.29 support netpoll. |
| 51 | * 1.30 Minor cleanup. |
| 52 | * 1.31 NAPI support. (disabled by default) |
| 53 | * Use DMA_RxAlign_2 if possible. |
| 54 | * Do not use PackedBuffer. |
| 55 | * Cleanup. |
| 56 | * 1.32 Fix free buffer management on non-PackedBuffer mode. |
| 57 | * 1.33 Fix netpoll build. |
| 58 | * 1.34 Fix netpoll locking. "BH rule" for NAPI is not enough with |
| 59 | * netpoll, hard_start_xmit might be called from irq context. |
| 60 | * PM support. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 61 | */ |
| 62 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 63 | #ifdef TC35815_NAPI |
| 64 | #define DRV_VERSION "1.34-NAPI" |
| 65 | #else |
| 66 | #define DRV_VERSION "1.34" |
| 67 | #endif |
| 68 | static const char *version = "tc35815.c:v" DRV_VERSION "\n"; |
| 69 | #define MODNAME "tc35815" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 70 | |
| 71 | #include <linux/module.h> |
| 72 | #include <linux/kernel.h> |
| 73 | #include <linux/types.h> |
| 74 | #include <linux/fcntl.h> |
| 75 | #include <linux/interrupt.h> |
| 76 | #include <linux/ioport.h> |
| 77 | #include <linux/in.h> |
| 78 | #include <linux/slab.h> |
| 79 | #include <linux/string.h> |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 80 | #include <linux/spinlock.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 81 | #include <linux/errno.h> |
| 82 | #include <linux/init.h> |
| 83 | #include <linux/netdevice.h> |
| 84 | #include <linux/etherdevice.h> |
| 85 | #include <linux/skbuff.h> |
| 86 | #include <linux/delay.h> |
| 87 | #include <linux/pci.h> |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 88 | #include <linux/mii.h> |
| 89 | #include <linux/ethtool.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 90 | #include <asm/io.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 91 | #include <asm/byteorder.h> |
| 92 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 93 | /* First, a few definitions that the brave might change. */ |
| 94 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 95 | #define GATHER_TXINT /* On-Demand Tx Interrupt */ |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 96 | #define WORKAROUND_LOSTCAR |
| 97 | #define WORKAROUND_100HALF_PROMISC |
| 98 | /* #define TC35815_USE_PACKEDBUFFER */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 99 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 100 | typedef enum { |
| 101 | TC35815CF = 0, |
| 102 | TC35815_NWU, |
| 103 | TC35815_TX4939, |
| 104 | } board_t; |
| 105 | |
| 106 | /* indexed by board_t, above */ |
| 107 | static const struct { |
| 108 | const char *name; |
| 109 | } board_info[] __devinitdata = { |
| 110 | { "TOSHIBA TC35815CF 10/100BaseTX" }, |
| 111 | { "TOSHIBA TC35815 with Wake on LAN" }, |
| 112 | { "TOSHIBA TC35815/TX4939" }, |
| 113 | }; |
| 114 | |
| 115 | static const struct pci_device_id tc35815_pci_tbl[] = { |
| 116 | {PCI_DEVICE(PCI_VENDOR_ID_TOSHIBA_2, PCI_DEVICE_ID_TOSHIBA_TC35815CF), .driver_data = TC35815CF }, |
| 117 | {PCI_DEVICE(PCI_VENDOR_ID_TOSHIBA_2, PCI_DEVICE_ID_TOSHIBA_TC35815_NWU), .driver_data = TC35815_NWU }, |
| 118 | {PCI_DEVICE(PCI_VENDOR_ID_TOSHIBA_2, PCI_DEVICE_ID_TOSHIBA_TC35815_TX4939), .driver_data = TC35815_TX4939 }, |
| 119 | {0,} |
| 120 | }; |
| 121 | MODULE_DEVICE_TABLE (pci, tc35815_pci_tbl); |
| 122 | |
| 123 | /* see MODULE_PARM_DESC */ |
| 124 | static struct tc35815_options { |
| 125 | int speed; |
| 126 | int duplex; |
| 127 | int doforce; |
| 128 | } options; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 129 | |
| 130 | /* |
| 131 | * Registers |
| 132 | */ |
| 133 | struct tc35815_regs { |
| 134 | volatile __u32 DMA_Ctl; /* 0x00 */ |
| 135 | volatile __u32 TxFrmPtr; |
| 136 | volatile __u32 TxThrsh; |
| 137 | volatile __u32 TxPollCtr; |
| 138 | volatile __u32 BLFrmPtr; |
| 139 | volatile __u32 RxFragSize; |
| 140 | volatile __u32 Int_En; |
| 141 | volatile __u32 FDA_Bas; |
| 142 | volatile __u32 FDA_Lim; /* 0x20 */ |
| 143 | volatile __u32 Int_Src; |
| 144 | volatile __u32 unused0[2]; |
| 145 | volatile __u32 PauseCnt; |
| 146 | volatile __u32 RemPauCnt; |
| 147 | volatile __u32 TxCtlFrmStat; |
| 148 | volatile __u32 unused1; |
| 149 | volatile __u32 MAC_Ctl; /* 0x40 */ |
| 150 | volatile __u32 CAM_Ctl; |
| 151 | volatile __u32 Tx_Ctl; |
| 152 | volatile __u32 Tx_Stat; |
| 153 | volatile __u32 Rx_Ctl; |
| 154 | volatile __u32 Rx_Stat; |
| 155 | volatile __u32 MD_Data; |
| 156 | volatile __u32 MD_CA; |
| 157 | volatile __u32 CAM_Adr; /* 0x60 */ |
| 158 | volatile __u32 CAM_Data; |
| 159 | volatile __u32 CAM_Ena; |
| 160 | volatile __u32 PROM_Ctl; |
| 161 | volatile __u32 PROM_Data; |
| 162 | volatile __u32 Algn_Cnt; |
| 163 | volatile __u32 CRC_Cnt; |
| 164 | volatile __u32 Miss_Cnt; |
| 165 | }; |
| 166 | |
| 167 | /* |
| 168 | * Bit assignments |
| 169 | */ |
| 170 | /* DMA_Ctl bit asign ------------------------------------------------------- */ |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 171 | #define DMA_RxAlign 0x00c00000 /* 1:Reception Alignment */ |
| 172 | #define DMA_RxAlign_1 0x00400000 |
| 173 | #define DMA_RxAlign_2 0x00800000 |
| 174 | #define DMA_RxAlign_3 0x00c00000 |
| 175 | #define DMA_M66EnStat 0x00080000 /* 1:66MHz Enable State */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 176 | #define DMA_IntMask 0x00040000 /* 1:Interupt mask */ |
| 177 | #define DMA_SWIntReq 0x00020000 /* 1:Software Interrupt request */ |
| 178 | #define DMA_TxWakeUp 0x00010000 /* 1:Transmit Wake Up */ |
| 179 | #define DMA_RxBigE 0x00008000 /* 1:Receive Big Endian */ |
| 180 | #define DMA_TxBigE 0x00004000 /* 1:Transmit Big Endian */ |
| 181 | #define DMA_TestMode 0x00002000 /* 1:Test Mode */ |
| 182 | #define DMA_PowrMgmnt 0x00001000 /* 1:Power Management */ |
| 183 | #define DMA_DmBurst_Mask 0x000001fc /* DMA Burst size */ |
| 184 | |
| 185 | /* RxFragSize bit asign ---------------------------------------------------- */ |
| 186 | #define RxFrag_EnPack 0x00008000 /* 1:Enable Packing */ |
| 187 | #define RxFrag_MinFragMask 0x00000ffc /* Minimum Fragment */ |
| 188 | |
| 189 | /* MAC_Ctl bit asign ------------------------------------------------------- */ |
| 190 | #define MAC_Link10 0x00008000 /* 1:Link Status 10Mbits */ |
| 191 | #define MAC_EnMissRoll 0x00002000 /* 1:Enable Missed Roll */ |
| 192 | #define MAC_MissRoll 0x00000400 /* 1:Missed Roll */ |
| 193 | #define MAC_Loop10 0x00000080 /* 1:Loop 10 Mbps */ |
| 194 | #define MAC_Conn_Auto 0x00000000 /*00:Connection mode (Automatic) */ |
| 195 | #define MAC_Conn_10M 0x00000020 /*01: (10Mbps endec)*/ |
| 196 | #define MAC_Conn_Mll 0x00000040 /*10: (Mll clock) */ |
| 197 | #define MAC_MacLoop 0x00000010 /* 1:MAC Loopback */ |
| 198 | #define MAC_FullDup 0x00000008 /* 1:Full Duplex 0:Half Duplex */ |
| 199 | #define MAC_Reset 0x00000004 /* 1:Software Reset */ |
| 200 | #define MAC_HaltImm 0x00000002 /* 1:Halt Immediate */ |
| 201 | #define MAC_HaltReq 0x00000001 /* 1:Halt request */ |
| 202 | |
| 203 | /* PROM_Ctl bit asign ------------------------------------------------------ */ |
| 204 | #define PROM_Busy 0x00008000 /* 1:Busy (Start Operation) */ |
| 205 | #define PROM_Read 0x00004000 /*10:Read operation */ |
| 206 | #define PROM_Write 0x00002000 /*01:Write operation */ |
| 207 | #define PROM_Erase 0x00006000 /*11:Erase operation */ |
| 208 | /*00:Enable or Disable Writting, */ |
| 209 | /* as specified in PROM_Addr. */ |
| 210 | #define PROM_Addr_Ena 0x00000030 /*11xxxx:PROM Write enable */ |
| 211 | /*00xxxx: disable */ |
| 212 | |
| 213 | /* CAM_Ctl bit asign ------------------------------------------------------- */ |
| 214 | #define CAM_CompEn 0x00000010 /* 1:CAM Compare Enable */ |
| 215 | #define CAM_NegCAM 0x00000008 /* 1:Reject packets CAM recognizes,*/ |
| 216 | /* accept other */ |
| 217 | #define CAM_BroadAcc 0x00000004 /* 1:Broadcast assept */ |
| 218 | #define CAM_GroupAcc 0x00000002 /* 1:Multicast assept */ |
| 219 | #define CAM_StationAcc 0x00000001 /* 1:unicast accept */ |
| 220 | |
| 221 | /* CAM_Ena bit asign ------------------------------------------------------- */ |
| 222 | #define CAM_ENTRY_MAX 21 /* CAM Data entry max count */ |
| 223 | #define CAM_Ena_Mask ((1<<CAM_ENTRY_MAX)-1) /* CAM Enable bits (Max 21bits) */ |
| 224 | #define CAM_Ena_Bit(index) (1<<(index)) |
| 225 | #define CAM_ENTRY_DESTINATION 0 |
| 226 | #define CAM_ENTRY_SOURCE 1 |
| 227 | #define CAM_ENTRY_MACCTL 20 |
| 228 | |
| 229 | /* Tx_Ctl bit asign -------------------------------------------------------- */ |
| 230 | #define Tx_En 0x00000001 /* 1:Transmit enable */ |
| 231 | #define Tx_TxHalt 0x00000002 /* 1:Transmit Halt Request */ |
| 232 | #define Tx_NoPad 0x00000004 /* 1:Suppress Padding */ |
| 233 | #define Tx_NoCRC 0x00000008 /* 1:Suppress Padding */ |
| 234 | #define Tx_FBack 0x00000010 /* 1:Fast Back-off */ |
| 235 | #define Tx_EnUnder 0x00000100 /* 1:Enable Underrun */ |
| 236 | #define Tx_EnExDefer 0x00000200 /* 1:Enable Excessive Deferral */ |
| 237 | #define Tx_EnLCarr 0x00000400 /* 1:Enable Lost Carrier */ |
| 238 | #define Tx_EnExColl 0x00000800 /* 1:Enable Excessive Collision */ |
| 239 | #define Tx_EnLateColl 0x00001000 /* 1:Enable Late Collision */ |
| 240 | #define Tx_EnTxPar 0x00002000 /* 1:Enable Transmit Parity */ |
| 241 | #define Tx_EnComp 0x00004000 /* 1:Enable Completion */ |
| 242 | |
| 243 | /* Tx_Stat bit asign ------------------------------------------------------- */ |
| 244 | #define Tx_TxColl_MASK 0x0000000F /* Tx Collision Count */ |
| 245 | #define Tx_ExColl 0x00000010 /* Excessive Collision */ |
| 246 | #define Tx_TXDefer 0x00000020 /* Transmit Defered */ |
| 247 | #define Tx_Paused 0x00000040 /* Transmit Paused */ |
| 248 | #define Tx_IntTx 0x00000080 /* Interrupt on Tx */ |
| 249 | #define Tx_Under 0x00000100 /* Underrun */ |
| 250 | #define Tx_Defer 0x00000200 /* Deferral */ |
| 251 | #define Tx_NCarr 0x00000400 /* No Carrier */ |
| 252 | #define Tx_10Stat 0x00000800 /* 10Mbps Status */ |
| 253 | #define Tx_LateColl 0x00001000 /* Late Collision */ |
| 254 | #define Tx_TxPar 0x00002000 /* Tx Parity Error */ |
| 255 | #define Tx_Comp 0x00004000 /* Completion */ |
| 256 | #define Tx_Halted 0x00008000 /* Tx Halted */ |
| 257 | #define Tx_SQErr 0x00010000 /* Signal Quality Error(SQE) */ |
| 258 | |
| 259 | /* Rx_Ctl bit asign -------------------------------------------------------- */ |
| 260 | #define Rx_EnGood 0x00004000 /* 1:Enable Good */ |
| 261 | #define Rx_EnRxPar 0x00002000 /* 1:Enable Receive Parity */ |
| 262 | #define Rx_EnLongErr 0x00000800 /* 1:Enable Long Error */ |
| 263 | #define Rx_EnOver 0x00000400 /* 1:Enable OverFlow */ |
| 264 | #define Rx_EnCRCErr 0x00000200 /* 1:Enable CRC Error */ |
| 265 | #define Rx_EnAlign 0x00000100 /* 1:Enable Alignment */ |
| 266 | #define Rx_IgnoreCRC 0x00000040 /* 1:Ignore CRC Value */ |
| 267 | #define Rx_StripCRC 0x00000010 /* 1:Strip CRC Value */ |
| 268 | #define Rx_ShortEn 0x00000008 /* 1:Short Enable */ |
| 269 | #define Rx_LongEn 0x00000004 /* 1:Long Enable */ |
| 270 | #define Rx_RxHalt 0x00000002 /* 1:Receive Halt Request */ |
| 271 | #define Rx_RxEn 0x00000001 /* 1:Receive Intrrupt Enable */ |
| 272 | |
| 273 | /* Rx_Stat bit asign ------------------------------------------------------- */ |
| 274 | #define Rx_Halted 0x00008000 /* Rx Halted */ |
| 275 | #define Rx_Good 0x00004000 /* Rx Good */ |
| 276 | #define Rx_RxPar 0x00002000 /* Rx Parity Error */ |
| 277 | /* 0x00001000 not use */ |
| 278 | #define Rx_LongErr 0x00000800 /* Rx Long Error */ |
| 279 | #define Rx_Over 0x00000400 /* Rx Overflow */ |
| 280 | #define Rx_CRCErr 0x00000200 /* Rx CRC Error */ |
| 281 | #define Rx_Align 0x00000100 /* Rx Alignment Error */ |
| 282 | #define Rx_10Stat 0x00000080 /* Rx 10Mbps Status */ |
| 283 | #define Rx_IntRx 0x00000040 /* Rx Interrupt */ |
| 284 | #define Rx_CtlRecd 0x00000020 /* Rx Control Receive */ |
| 285 | |
| 286 | #define Rx_Stat_Mask 0x0000EFC0 /* Rx All Status Mask */ |
| 287 | |
| 288 | /* Int_En bit asign -------------------------------------------------------- */ |
| 289 | #define Int_NRAbtEn 0x00000800 /* 1:Non-recoverable Abort Enable */ |
| 290 | #define Int_TxCtlCmpEn 0x00000400 /* 1:Transmit Control Complete Enable */ |
| 291 | #define Int_DmParErrEn 0x00000200 /* 1:DMA Parity Error Enable */ |
| 292 | #define Int_DParDEn 0x00000100 /* 1:Data Parity Error Enable */ |
| 293 | #define Int_EarNotEn 0x00000080 /* 1:Early Notify Enable */ |
| 294 | #define Int_DParErrEn 0x00000040 /* 1:Detected Parity Error Enable */ |
| 295 | #define Int_SSysErrEn 0x00000020 /* 1:Signalled System Error Enable */ |
| 296 | #define Int_RMasAbtEn 0x00000010 /* 1:Received Master Abort Enable */ |
| 297 | #define Int_RTargAbtEn 0x00000008 /* 1:Received Target Abort Enable */ |
| 298 | #define Int_STargAbtEn 0x00000004 /* 1:Signalled Target Abort Enable */ |
| 299 | #define Int_BLExEn 0x00000002 /* 1:Buffer List Exhausted Enable */ |
| 300 | #define Int_FDAExEn 0x00000001 /* 1:Free Descriptor Area */ |
| 301 | /* Exhausted Enable */ |
| 302 | |
| 303 | /* Int_Src bit asign ------------------------------------------------------- */ |
| 304 | #define Int_NRabt 0x00004000 /* 1:Non Recoverable error */ |
| 305 | #define Int_DmParErrStat 0x00002000 /* 1:DMA Parity Error & Clear */ |
| 306 | #define Int_BLEx 0x00001000 /* 1:Buffer List Empty & Clear */ |
| 307 | #define Int_FDAEx 0x00000800 /* 1:FDA Empty & Clear */ |
| 308 | #define Int_IntNRAbt 0x00000400 /* 1:Non Recoverable Abort */ |
| 309 | #define Int_IntCmp 0x00000200 /* 1:MAC control packet complete */ |
| 310 | #define Int_IntExBD 0x00000100 /* 1:Interrupt Extra BD & Clear */ |
| 311 | #define Int_DmParErr 0x00000080 /* 1:DMA Parity Error & Clear */ |
| 312 | #define Int_IntEarNot 0x00000040 /* 1:Receive Data write & Clear */ |
| 313 | #define Int_SWInt 0x00000020 /* 1:Software request & Clear */ |
| 314 | #define Int_IntBLEx 0x00000010 /* 1:Buffer List Empty & Clear */ |
| 315 | #define Int_IntFDAEx 0x00000008 /* 1:FDA Empty & Clear */ |
| 316 | #define Int_IntPCI 0x00000004 /* 1:PCI controller & Clear */ |
| 317 | #define Int_IntMacRx 0x00000002 /* 1:Rx controller & Clear */ |
| 318 | #define Int_IntMacTx 0x00000001 /* 1:Tx controller & Clear */ |
| 319 | |
| 320 | /* MD_CA bit asign --------------------------------------------------------- */ |
| 321 | #define MD_CA_PreSup 0x00001000 /* 1:Preamble Supress */ |
| 322 | #define MD_CA_Busy 0x00000800 /* 1:Busy (Start Operation) */ |
| 323 | #define MD_CA_Wr 0x00000400 /* 1:Write 0:Read */ |
| 324 | |
| 325 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 326 | /* |
| 327 | * Descriptors |
| 328 | */ |
| 329 | |
| 330 | /* Frame descripter */ |
| 331 | struct FDesc { |
| 332 | volatile __u32 FDNext; |
| 333 | volatile __u32 FDSystem; |
| 334 | volatile __u32 FDStat; |
| 335 | volatile __u32 FDCtl; |
| 336 | }; |
| 337 | |
| 338 | /* Buffer descripter */ |
| 339 | struct BDesc { |
| 340 | volatile __u32 BuffData; |
| 341 | volatile __u32 BDCtl; |
| 342 | }; |
| 343 | |
| 344 | #define FD_ALIGN 16 |
| 345 | |
| 346 | /* Frame Descripter bit asign ---------------------------------------------- */ |
| 347 | #define FD_FDLength_MASK 0x0000FFFF /* Length MASK */ |
| 348 | #define FD_BDCnt_MASK 0x001F0000 /* BD count MASK in FD */ |
| 349 | #define FD_FrmOpt_MASK 0x7C000000 /* Frame option MASK */ |
| 350 | #define FD_FrmOpt_BigEndian 0x40000000 /* Tx/Rx */ |
| 351 | #define FD_FrmOpt_IntTx 0x20000000 /* Tx only */ |
| 352 | #define FD_FrmOpt_NoCRC 0x10000000 /* Tx only */ |
| 353 | #define FD_FrmOpt_NoPadding 0x08000000 /* Tx only */ |
| 354 | #define FD_FrmOpt_Packing 0x04000000 /* Rx only */ |
| 355 | #define FD_CownsFD 0x80000000 /* FD Controller owner bit */ |
| 356 | #define FD_Next_EOL 0x00000001 /* FD EOL indicator */ |
| 357 | #define FD_BDCnt_SHIFT 16 |
| 358 | |
| 359 | /* Buffer Descripter bit asign --------------------------------------------- */ |
| 360 | #define BD_BuffLength_MASK 0x0000FFFF /* Recieve Data Size */ |
| 361 | #define BD_RxBDID_MASK 0x00FF0000 /* BD ID Number MASK */ |
| 362 | #define BD_RxBDSeqN_MASK 0x7F000000 /* Rx BD Sequence Number */ |
| 363 | #define BD_CownsBD 0x80000000 /* BD Controller owner bit */ |
| 364 | #define BD_RxBDID_SHIFT 16 |
| 365 | #define BD_RxBDSeqN_SHIFT 24 |
| 366 | |
| 367 | |
| 368 | /* Some useful constants. */ |
| 369 | #undef NO_CHECK_CARRIER /* Does not check No-Carrier with TP */ |
| 370 | |
| 371 | #ifdef NO_CHECK_CARRIER |
| 372 | #define TX_CTL_CMD (Tx_EnComp | Tx_EnTxPar | Tx_EnLateColl | \ |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 373 | Tx_EnExColl | Tx_EnExDefer | Tx_EnUnder | \ |
| 374 | Tx_En) /* maybe 0x7b01 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 375 | #else |
| 376 | #define TX_CTL_CMD (Tx_EnComp | Tx_EnTxPar | Tx_EnLateColl | \ |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 377 | Tx_EnExColl | Tx_EnLCarr | Tx_EnExDefer | Tx_EnUnder | \ |
| 378 | Tx_En) /* maybe 0x7b01 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 379 | #endif |
| 380 | #define RX_CTL_CMD (Rx_EnGood | Rx_EnRxPar | Rx_EnLongErr | Rx_EnOver \ |
| 381 | | Rx_EnCRCErr | Rx_EnAlign | Rx_RxEn) /* maybe 0x6f01 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 382 | #define INT_EN_CMD (Int_NRAbtEn | \ |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 383 | Int_DmParErrEn | Int_DParDEn | Int_DParErrEn | \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 384 | Int_SSysErrEn | Int_RMasAbtEn | Int_RTargAbtEn | \ |
| 385 | Int_STargAbtEn | \ |
| 386 | Int_BLExEn | Int_FDAExEn) /* maybe 0xb7f*/ |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 387 | #define DMA_CTL_CMD DMA_BURST_SIZE |
| 388 | #define HAVE_DMA_RXALIGN(lp) likely((lp)->boardtype != TC35815CF) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 389 | |
| 390 | /* Tuning parameters */ |
| 391 | #define DMA_BURST_SIZE 32 |
| 392 | #define TX_THRESHOLD 1024 |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 393 | #define TX_THRESHOLD_MAX 1536 /* used threshold with packet max byte for low pci transfer ability.*/ |
| 394 | #define TX_THRESHOLD_KEEP_LIMIT 10 /* setting threshold max value when overrun error occured this count. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 395 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 396 | /* 16 + RX_BUF_NUM * 8 + RX_FD_NUM * 16 + TX_FD_NUM * 32 <= PAGE_SIZE*FD_PAGE_NUM */ |
| 397 | #ifdef TC35815_USE_PACKEDBUFFER |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 398 | #define FD_PAGE_NUM 2 |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 399 | #define RX_BUF_NUM 8 /* >= 2 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 400 | #define RX_FD_NUM 250 /* >= 32 */ |
| 401 | #define TX_FD_NUM 128 |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 402 | #define RX_BUF_SIZE PAGE_SIZE |
| 403 | #else /* TC35815_USE_PACKEDBUFFER */ |
| 404 | #define FD_PAGE_NUM 4 |
| 405 | #define RX_BUF_NUM 128 /* < 256 */ |
| 406 | #define RX_FD_NUM 256 /* >= 32 */ |
| 407 | #define TX_FD_NUM 128 |
| 408 | #if RX_CTL_CMD & Rx_LongEn |
| 409 | #define RX_BUF_SIZE PAGE_SIZE |
| 410 | #elif RX_CTL_CMD & Rx_StripCRC |
| 411 | #define RX_BUF_SIZE ALIGN(ETH_FRAME_LEN + 4 + 2, 32) /* +2: reserve */ |
| 412 | #else |
| 413 | #define RX_BUF_SIZE ALIGN(ETH_FRAME_LEN + 2, 32) /* +2: reserve */ |
| 414 | #endif |
| 415 | #endif /* TC35815_USE_PACKEDBUFFER */ |
| 416 | #define RX_FD_RESERVE (2 / 2) /* max 2 BD per RxFD */ |
| 417 | #define NAPI_WEIGHT 16 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 418 | |
| 419 | struct TxFD { |
| 420 | struct FDesc fd; |
| 421 | struct BDesc bd; |
| 422 | struct BDesc unused; |
| 423 | }; |
| 424 | |
| 425 | struct RxFD { |
| 426 | struct FDesc fd; |
| 427 | struct BDesc bd[0]; /* variable length */ |
| 428 | }; |
| 429 | |
| 430 | struct FrFD { |
| 431 | struct FDesc fd; |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 432 | struct BDesc bd[RX_BUF_NUM]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 433 | }; |
| 434 | |
| 435 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 436 | #define tc_readl(addr) readl(addr) |
| 437 | #define tc_writel(d, addr) writel(d, addr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 438 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 439 | #define TC35815_TX_TIMEOUT msecs_to_jiffies(400) |
| 440 | |
| 441 | /* Timer state engine. */ |
| 442 | enum tc35815_timer_state { |
| 443 | arbwait = 0, /* Waiting for auto negotiation to complete. */ |
| 444 | lupwait = 1, /* Auto-neg complete, awaiting link-up status. */ |
| 445 | ltrywait = 2, /* Forcing try of all modes, from fastest to slowest. */ |
| 446 | asleep = 3, /* Time inactive. */ |
| 447 | lcheck = 4, /* Check link status. */ |
| 448 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 449 | |
| 450 | /* Information that need to be kept for each board. */ |
| 451 | struct tc35815_local { |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 452 | struct pci_dev *pci_dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 453 | |
| 454 | /* statistics */ |
| 455 | struct net_device_stats stats; |
| 456 | struct { |
| 457 | int max_tx_qlen; |
| 458 | int tx_ints; |
| 459 | int rx_ints; |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 460 | int tx_underrun; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 461 | } lstats; |
| 462 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 463 | /* Tx control lock. This protects the transmit buffer ring |
| 464 | * state along with the "tx full" state of the driver. This |
| 465 | * means all netif_queue flow control actions are protected |
| 466 | * by this lock as well. |
| 467 | */ |
| 468 | spinlock_t lock; |
| 469 | |
| 470 | int phy_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 471 | int fullduplex; |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 472 | unsigned short saved_lpa; |
| 473 | struct timer_list timer; |
| 474 | enum tc35815_timer_state timer_state; /* State of auto-neg timer. */ |
| 475 | unsigned int timer_ticks; /* Number of clicks at each state */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 476 | |
| 477 | /* |
| 478 | * Transmitting: Batch Mode. |
| 479 | * 1 BD in 1 TxFD. |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 480 | * Receiving: Packing Mode. (TC35815_USE_PACKEDBUFFER) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 481 | * 1 circular FD for Free Buffer List. |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 482 | * RX_BUF_NUM BD in Free Buffer FD. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 483 | * One Free Buffer BD has PAGE_SIZE data buffer. |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 484 | * Or Non-Packing Mode. |
| 485 | * 1 circular FD for Free Buffer List. |
| 486 | * RX_BUF_NUM BD in Free Buffer FD. |
| 487 | * One Free Buffer BD has ETH_FRAME_LEN data buffer. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 488 | */ |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 489 | void * fd_buf; /* for TxFD, RxFD, FrFD */ |
| 490 | dma_addr_t fd_buf_dma; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 491 | struct TxFD *tfd_base; |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 492 | unsigned int tfd_start; |
| 493 | unsigned int tfd_end; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 494 | struct RxFD *rfd_base; |
| 495 | struct RxFD *rfd_limit; |
| 496 | struct RxFD *rfd_cur; |
| 497 | struct FrFD *fbl_ptr; |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 498 | #ifdef TC35815_USE_PACKEDBUFFER |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 499 | unsigned char fbl_curid; |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 500 | void * data_buf[RX_BUF_NUM]; /* packing */ |
| 501 | dma_addr_t data_buf_dma[RX_BUF_NUM]; |
| 502 | struct { |
| 503 | struct sk_buff *skb; |
| 504 | dma_addr_t skb_dma; |
| 505 | } tx_skbs[TX_FD_NUM]; |
| 506 | #else |
| 507 | unsigned int fbl_count; |
| 508 | struct { |
| 509 | struct sk_buff *skb; |
| 510 | dma_addr_t skb_dma; |
| 511 | } tx_skbs[TX_FD_NUM], rx_skbs[RX_BUF_NUM]; |
| 512 | #endif |
| 513 | struct mii_if_info mii; |
| 514 | unsigned short mii_id[2]; |
| 515 | u32 msg_enable; |
| 516 | board_t boardtype; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 517 | }; |
| 518 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 519 | static inline dma_addr_t fd_virt_to_bus(struct tc35815_local *lp, void *virt) |
| 520 | { |
| 521 | return lp->fd_buf_dma + ((u8 *)virt - (u8 *)lp->fd_buf); |
| 522 | } |
| 523 | #ifdef DEBUG |
| 524 | static inline void *fd_bus_to_virt(struct tc35815_local *lp, dma_addr_t bus) |
| 525 | { |
| 526 | return (void *)((u8 *)lp->fd_buf + (bus - lp->fd_buf_dma)); |
| 527 | } |
| 528 | #endif |
| 529 | #ifdef TC35815_USE_PACKEDBUFFER |
| 530 | static inline void *rxbuf_bus_to_virt(struct tc35815_local *lp, dma_addr_t bus) |
| 531 | { |
| 532 | int i; |
| 533 | for (i = 0; i < RX_BUF_NUM; i++) { |
| 534 | if (bus >= lp->data_buf_dma[i] && |
| 535 | bus < lp->data_buf_dma[i] + PAGE_SIZE) |
| 536 | return (void *)((u8 *)lp->data_buf[i] + |
| 537 | (bus - lp->data_buf_dma[i])); |
| 538 | } |
| 539 | return NULL; |
| 540 | } |
| 541 | |
| 542 | #define TC35815_DMA_SYNC_ONDEMAND |
| 543 | static void* alloc_rxbuf_page(struct pci_dev *hwdev, dma_addr_t *dma_handle) |
| 544 | { |
| 545 | #ifdef TC35815_DMA_SYNC_ONDEMAND |
| 546 | void *buf; |
| 547 | /* pci_map + pci_dma_sync will be more effective than |
| 548 | * pci_alloc_consistent on some archs. */ |
| 549 | if ((buf = (void *)__get_free_page(GFP_ATOMIC)) == NULL) |
| 550 | return NULL; |
| 551 | *dma_handle = pci_map_single(hwdev, buf, PAGE_SIZE, |
| 552 | PCI_DMA_FROMDEVICE); |
| 553 | if (pci_dma_mapping_error(*dma_handle)) { |
| 554 | free_page((unsigned long)buf); |
| 555 | return NULL; |
| 556 | } |
| 557 | return buf; |
| 558 | #else |
| 559 | return pci_alloc_consistent(hwdev, PAGE_SIZE, dma_handle); |
| 560 | #endif |
| 561 | } |
| 562 | |
| 563 | static void free_rxbuf_page(struct pci_dev *hwdev, void *buf, dma_addr_t dma_handle) |
| 564 | { |
| 565 | #ifdef TC35815_DMA_SYNC_ONDEMAND |
| 566 | pci_unmap_single(hwdev, dma_handle, PAGE_SIZE, PCI_DMA_FROMDEVICE); |
| 567 | free_page((unsigned long)buf); |
| 568 | #else |
| 569 | pci_free_consistent(hwdev, PAGE_SIZE, buf, dma_handle); |
| 570 | #endif |
| 571 | } |
| 572 | #else /* TC35815_USE_PACKEDBUFFER */ |
| 573 | static struct sk_buff *alloc_rxbuf_skb(struct net_device *dev, |
| 574 | struct pci_dev *hwdev, |
| 575 | dma_addr_t *dma_handle) |
| 576 | { |
| 577 | struct sk_buff *skb; |
| 578 | skb = dev_alloc_skb(RX_BUF_SIZE); |
| 579 | if (!skb) |
| 580 | return NULL; |
| 581 | skb->dev = dev; |
| 582 | *dma_handle = pci_map_single(hwdev, skb->data, RX_BUF_SIZE, |
| 583 | PCI_DMA_FROMDEVICE); |
| 584 | if (pci_dma_mapping_error(*dma_handle)) { |
| 585 | dev_kfree_skb_any(skb); |
| 586 | return NULL; |
| 587 | } |
| 588 | skb_reserve(skb, 2); /* make IP header 4byte aligned */ |
| 589 | return skb; |
| 590 | } |
| 591 | |
| 592 | static void free_rxbuf_skb(struct pci_dev *hwdev, struct sk_buff *skb, dma_addr_t dma_handle) |
| 593 | { |
| 594 | pci_unmap_single(hwdev, dma_handle, RX_BUF_SIZE, |
| 595 | PCI_DMA_FROMDEVICE); |
| 596 | dev_kfree_skb_any(skb); |
| 597 | } |
| 598 | #endif /* TC35815_USE_PACKEDBUFFER */ |
| 599 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 600 | /* Index to functions, as function prototypes. */ |
| 601 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 602 | static int tc35815_open(struct net_device *dev); |
| 603 | static int tc35815_send_packet(struct sk_buff *skb, struct net_device *dev); |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 604 | static irqreturn_t tc35815_interrupt(int irq, void *dev_id); |
| 605 | #ifdef TC35815_NAPI |
| 606 | static int tc35815_rx(struct net_device *dev, int limit); |
| 607 | static int tc35815_poll(struct net_device *dev, int *budget); |
| 608 | #else |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 609 | static void tc35815_rx(struct net_device *dev); |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 610 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 611 | static void tc35815_txdone(struct net_device *dev); |
| 612 | static int tc35815_close(struct net_device *dev); |
| 613 | static struct net_device_stats *tc35815_get_stats(struct net_device *dev); |
| 614 | static void tc35815_set_multicast_list(struct net_device *dev); |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 615 | static void tc35815_tx_timeout(struct net_device *dev); |
| 616 | static int tc35815_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); |
| 617 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 618 | static void tc35815_poll_controller(struct net_device *dev); |
| 619 | #endif |
| 620 | static const struct ethtool_ops tc35815_ethtool_ops; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 621 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 622 | /* Example routines you must write ;->. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 623 | static void tc35815_chip_reset(struct net_device *dev); |
| 624 | static void tc35815_chip_init(struct net_device *dev); |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 625 | static void tc35815_find_phy(struct net_device *dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 626 | static void tc35815_phy_chip_init(struct net_device *dev); |
| 627 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 628 | #ifdef DEBUG |
| 629 | static void panic_queues(struct net_device *dev); |
| 630 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 631 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 632 | static void tc35815_timer(unsigned long data); |
| 633 | static void tc35815_start_auto_negotiation(struct net_device *dev, |
| 634 | struct ethtool_cmd *ep); |
| 635 | static int tc_mdio_read(struct net_device *dev, int phy_id, int location); |
| 636 | static void tc_mdio_write(struct net_device *dev, int phy_id, int location, |
| 637 | int val); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 638 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 639 | static void __devinit tc35815_init_dev_addr (struct net_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 640 | { |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 641 | struct tc35815_regs __iomem *tr = |
| 642 | (struct tc35815_regs __iomem *)dev->base_addr; |
| 643 | int i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 644 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 645 | /* dev_addr will be overwritten on NETDEV_REGISTER event */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 646 | while (tc_readl(&tr->PROM_Ctl) & PROM_Busy) |
| 647 | ; |
| 648 | for (i = 0; i < 6; i += 2) { |
| 649 | unsigned short data; |
| 650 | tc_writel(PROM_Busy | PROM_Read | (i / 2 + 2), &tr->PROM_Ctl); |
| 651 | while (tc_readl(&tr->PROM_Ctl) & PROM_Busy) |
| 652 | ; |
| 653 | data = tc_readl(&tr->PROM_Data); |
| 654 | dev->dev_addr[i] = data & 0xff; |
| 655 | dev->dev_addr[i+1] = data >> 8; |
| 656 | } |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 657 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 658 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 659 | static int __devinit tc35815_init_one (struct pci_dev *pdev, |
| 660 | const struct pci_device_id *ent) |
| 661 | { |
| 662 | void __iomem *ioaddr = NULL; |
| 663 | struct net_device *dev; |
| 664 | struct tc35815_local *lp; |
| 665 | int rc; |
| 666 | unsigned long mmio_start, mmio_end, mmio_flags, mmio_len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 667 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 668 | static int printed_version; |
| 669 | if (!printed_version++) { |
| 670 | printk(version); |
| 671 | dev_printk(KERN_DEBUG, &pdev->dev, |
| 672 | "speed:%d duplex:%d doforce:%d\n", |
| 673 | options.speed, options.duplex, options.doforce); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 674 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 675 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 676 | if (!pdev->irq) { |
| 677 | dev_warn(&pdev->dev, "no IRQ assigned.\n"); |
| 678 | return -ENODEV; |
| 679 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 680 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 681 | /* dev zeroed in alloc_etherdev */ |
| 682 | dev = alloc_etherdev (sizeof (*lp)); |
| 683 | if (dev == NULL) { |
| 684 | dev_err(&pdev->dev, "unable to alloc new ethernet\n"); |
| 685 | return -ENOMEM; |
| 686 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 687 | SET_MODULE_OWNER(dev); |
| 688 | SET_NETDEV_DEV(dev, &pdev->dev); |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 689 | lp = dev->priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 690 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 691 | /* enable device (incl. PCI PM wakeup), and bus-mastering */ |
| 692 | rc = pci_enable_device (pdev); |
| 693 | if (rc) |
| 694 | goto err_out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 695 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 696 | mmio_start = pci_resource_start (pdev, 1); |
| 697 | mmio_end = pci_resource_end (pdev, 1); |
| 698 | mmio_flags = pci_resource_flags (pdev, 1); |
| 699 | mmio_len = pci_resource_len (pdev, 1); |
| 700 | |
| 701 | /* set this immediately, we need to know before |
| 702 | * we talk to the chip directly */ |
| 703 | |
| 704 | /* make sure PCI base addr 1 is MMIO */ |
| 705 | if (!(mmio_flags & IORESOURCE_MEM)) { |
| 706 | dev_err(&pdev->dev, "region #1 not an MMIO resource, aborting\n"); |
| 707 | rc = -ENODEV; |
| 708 | goto err_out; |
| 709 | } |
| 710 | |
| 711 | /* check for weird/broken PCI region reporting */ |
| 712 | if ((mmio_len < sizeof(struct tc35815_regs))) { |
| 713 | dev_err(&pdev->dev, "Invalid PCI region size(s), aborting\n"); |
| 714 | rc = -ENODEV; |
| 715 | goto err_out; |
| 716 | } |
| 717 | |
| 718 | rc = pci_request_regions (pdev, MODNAME); |
| 719 | if (rc) |
| 720 | goto err_out; |
| 721 | |
| 722 | pci_set_master (pdev); |
| 723 | |
| 724 | /* ioremap MMIO region */ |
| 725 | ioaddr = ioremap (mmio_start, mmio_len); |
| 726 | if (ioaddr == NULL) { |
| 727 | dev_err(&pdev->dev, "cannot remap MMIO, aborting\n"); |
| 728 | rc = -EIO; |
| 729 | goto err_out_free_res; |
| 730 | } |
| 731 | |
| 732 | /* Initialize the device structure. */ |
| 733 | dev->open = tc35815_open; |
| 734 | dev->hard_start_xmit = tc35815_send_packet; |
| 735 | dev->stop = tc35815_close; |
| 736 | dev->get_stats = tc35815_get_stats; |
| 737 | dev->set_multicast_list = tc35815_set_multicast_list; |
| 738 | dev->do_ioctl = tc35815_ioctl; |
| 739 | dev->ethtool_ops = &tc35815_ethtool_ops; |
| 740 | dev->tx_timeout = tc35815_tx_timeout; |
| 741 | dev->watchdog_timeo = TC35815_TX_TIMEOUT; |
| 742 | #ifdef TC35815_NAPI |
| 743 | dev->poll = tc35815_poll; |
| 744 | dev->weight = NAPI_WEIGHT; |
| 745 | #endif |
| 746 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 747 | dev->poll_controller = tc35815_poll_controller; |
| 748 | #endif |
| 749 | |
| 750 | dev->irq = pdev->irq; |
| 751 | dev->base_addr = (unsigned long) ioaddr; |
| 752 | |
| 753 | /* dev->priv/lp zeroed and aligned in alloc_etherdev */ |
| 754 | lp = dev->priv; |
| 755 | spin_lock_init(&lp->lock); |
| 756 | lp->pci_dev = pdev; |
| 757 | lp->boardtype = ent->driver_data; |
| 758 | |
| 759 | lp->msg_enable = NETIF_MSG_TX_ERR | NETIF_MSG_HW | NETIF_MSG_DRV | NETIF_MSG_LINK; |
| 760 | pci_set_drvdata(pdev, dev); |
| 761 | |
| 762 | /* Soft reset the chip. */ |
| 763 | tc35815_chip_reset(dev); |
| 764 | |
| 765 | /* Retrieve the ethernet address. */ |
| 766 | tc35815_init_dev_addr(dev); |
| 767 | |
| 768 | rc = register_netdev (dev); |
| 769 | if (rc) |
| 770 | goto err_out_unmap; |
| 771 | |
| 772 | memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len); |
| 773 | printk(KERN_INFO "%s: %s at 0x%lx, " |
| 774 | "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x, " |
| 775 | "IRQ %d\n", |
| 776 | dev->name, |
| 777 | board_info[ent->driver_data].name, |
| 778 | dev->base_addr, |
| 779 | dev->dev_addr[0], dev->dev_addr[1], |
| 780 | dev->dev_addr[2], dev->dev_addr[3], |
| 781 | dev->dev_addr[4], dev->dev_addr[5], |
| 782 | dev->irq); |
| 783 | |
| 784 | setup_timer(&lp->timer, tc35815_timer, (unsigned long) dev); |
| 785 | lp->mii.dev = dev; |
| 786 | lp->mii.mdio_read = tc_mdio_read; |
| 787 | lp->mii.mdio_write = tc_mdio_write; |
| 788 | lp->mii.phy_id_mask = 0x1f; |
| 789 | lp->mii.reg_num_mask = 0x1f; |
| 790 | tc35815_find_phy(dev); |
| 791 | lp->mii.phy_id = lp->phy_addr; |
| 792 | lp->mii.full_duplex = 0; |
| 793 | lp->mii.force_media = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 794 | |
| 795 | return 0; |
| 796 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 797 | err_out_unmap: |
| 798 | iounmap(ioaddr); |
| 799 | err_out_free_res: |
| 800 | pci_release_regions (pdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 801 | err_out: |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 802 | free_netdev (dev); |
| 803 | return rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 804 | } |
| 805 | |
| 806 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 807 | static void __devexit tc35815_remove_one (struct pci_dev *pdev) |
| 808 | { |
| 809 | struct net_device *dev = pci_get_drvdata (pdev); |
| 810 | unsigned long mmio_addr; |
| 811 | |
| 812 | mmio_addr = dev->base_addr; |
| 813 | |
| 814 | unregister_netdev (dev); |
| 815 | |
| 816 | if (mmio_addr) { |
| 817 | iounmap ((void __iomem *)mmio_addr); |
| 818 | pci_release_regions (pdev); |
| 819 | } |
| 820 | |
| 821 | free_netdev (dev); |
| 822 | |
| 823 | pci_set_drvdata (pdev, NULL); |
| 824 | } |
| 825 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 826 | static int |
| 827 | tc35815_init_queues(struct net_device *dev) |
| 828 | { |
| 829 | struct tc35815_local *lp = dev->priv; |
| 830 | int i; |
| 831 | unsigned long fd_addr; |
| 832 | |
| 833 | if (!lp->fd_buf) { |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 834 | BUG_ON(sizeof(struct FDesc) + |
| 835 | sizeof(struct BDesc) * RX_BUF_NUM + |
| 836 | sizeof(struct FDesc) * RX_FD_NUM + |
| 837 | sizeof(struct TxFD) * TX_FD_NUM > |
| 838 | PAGE_SIZE * FD_PAGE_NUM); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 839 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 840 | if ((lp->fd_buf = pci_alloc_consistent(lp->pci_dev, PAGE_SIZE * FD_PAGE_NUM, &lp->fd_buf_dma)) == 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 841 | return -ENOMEM; |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 842 | for (i = 0; i < RX_BUF_NUM; i++) { |
| 843 | #ifdef TC35815_USE_PACKEDBUFFER |
| 844 | if ((lp->data_buf[i] = alloc_rxbuf_page(lp->pci_dev, &lp->data_buf_dma[i])) == NULL) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 845 | while (--i >= 0) { |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 846 | free_rxbuf_page(lp->pci_dev, |
| 847 | lp->data_buf[i], |
| 848 | lp->data_buf_dma[i]); |
| 849 | lp->data_buf[i] = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 850 | } |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 851 | pci_free_consistent(lp->pci_dev, |
| 852 | PAGE_SIZE * FD_PAGE_NUM, |
| 853 | lp->fd_buf, |
| 854 | lp->fd_buf_dma); |
| 855 | lp->fd_buf = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 856 | return -ENOMEM; |
| 857 | } |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 858 | #else |
| 859 | lp->rx_skbs[i].skb = |
| 860 | alloc_rxbuf_skb(dev, lp->pci_dev, |
| 861 | &lp->rx_skbs[i].skb_dma); |
| 862 | if (!lp->rx_skbs[i].skb) { |
| 863 | while (--i >= 0) { |
| 864 | free_rxbuf_skb(lp->pci_dev, |
| 865 | lp->rx_skbs[i].skb, |
| 866 | lp->rx_skbs[i].skb_dma); |
| 867 | lp->rx_skbs[i].skb = NULL; |
| 868 | } |
| 869 | pci_free_consistent(lp->pci_dev, |
| 870 | PAGE_SIZE * FD_PAGE_NUM, |
| 871 | lp->fd_buf, |
| 872 | lp->fd_buf_dma); |
| 873 | lp->fd_buf = NULL; |
| 874 | return -ENOMEM; |
| 875 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 876 | #endif |
| 877 | } |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 878 | printk(KERN_DEBUG "%s: FD buf %p DataBuf", |
| 879 | dev->name, lp->fd_buf); |
| 880 | #ifdef TC35815_USE_PACKEDBUFFER |
| 881 | printk(" DataBuf"); |
| 882 | for (i = 0; i < RX_BUF_NUM; i++) |
| 883 | printk(" %p", lp->data_buf[i]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 884 | #endif |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 885 | printk("\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 886 | } else { |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 887 | for (i = 0; i < FD_PAGE_NUM; i++) { |
| 888 | clear_page((void *)((unsigned long)lp->fd_buf + i * PAGE_SIZE)); |
| 889 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 890 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 891 | fd_addr = (unsigned long)lp->fd_buf; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 892 | |
| 893 | /* Free Descriptors (for Receive) */ |
| 894 | lp->rfd_base = (struct RxFD *)fd_addr; |
| 895 | fd_addr += sizeof(struct RxFD) * RX_FD_NUM; |
| 896 | for (i = 0; i < RX_FD_NUM; i++) { |
| 897 | lp->rfd_base[i].fd.FDCtl = cpu_to_le32(FD_CownsFD); |
| 898 | } |
| 899 | lp->rfd_cur = lp->rfd_base; |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 900 | lp->rfd_limit = (struct RxFD *)fd_addr - (RX_FD_RESERVE + 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 901 | |
| 902 | /* Transmit Descriptors */ |
| 903 | lp->tfd_base = (struct TxFD *)fd_addr; |
| 904 | fd_addr += sizeof(struct TxFD) * TX_FD_NUM; |
| 905 | for (i = 0; i < TX_FD_NUM; i++) { |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 906 | lp->tfd_base[i].fd.FDNext = cpu_to_le32(fd_virt_to_bus(lp, &lp->tfd_base[i+1])); |
| 907 | lp->tfd_base[i].fd.FDSystem = cpu_to_le32(0xffffffff); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 908 | lp->tfd_base[i].fd.FDCtl = cpu_to_le32(0); |
| 909 | } |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 910 | lp->tfd_base[TX_FD_NUM-1].fd.FDNext = cpu_to_le32(fd_virt_to_bus(lp, &lp->tfd_base[0])); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 911 | lp->tfd_start = 0; |
| 912 | lp->tfd_end = 0; |
| 913 | |
| 914 | /* Buffer List (for Receive) */ |
| 915 | lp->fbl_ptr = (struct FrFD *)fd_addr; |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 916 | lp->fbl_ptr->fd.FDNext = cpu_to_le32(fd_virt_to_bus(lp, lp->fbl_ptr)); |
| 917 | lp->fbl_ptr->fd.FDCtl = cpu_to_le32(RX_BUF_NUM | FD_CownsFD); |
| 918 | #ifndef TC35815_USE_PACKEDBUFFER |
| 919 | /* |
| 920 | * move all allocated skbs to head of rx_skbs[] array. |
| 921 | * fbl_count mighe not be RX_BUF_NUM if alloc_rxbuf_skb() in |
| 922 | * tc35815_rx() had failed. |
| 923 | */ |
| 924 | lp->fbl_count = 0; |
| 925 | for (i = 0; i < RX_BUF_NUM; i++) { |
| 926 | if (lp->rx_skbs[i].skb) { |
| 927 | if (i != lp->fbl_count) { |
| 928 | lp->rx_skbs[lp->fbl_count].skb = |
| 929 | lp->rx_skbs[i].skb; |
| 930 | lp->rx_skbs[lp->fbl_count].skb_dma = |
| 931 | lp->rx_skbs[i].skb_dma; |
| 932 | } |
| 933 | lp->fbl_count++; |
| 934 | } |
| 935 | } |
| 936 | #endif |
| 937 | for (i = 0; i < RX_BUF_NUM; i++) { |
| 938 | #ifdef TC35815_USE_PACKEDBUFFER |
| 939 | lp->fbl_ptr->bd[i].BuffData = cpu_to_le32(lp->data_buf_dma[i]); |
| 940 | #else |
| 941 | if (i >= lp->fbl_count) { |
| 942 | lp->fbl_ptr->bd[i].BuffData = 0; |
| 943 | lp->fbl_ptr->bd[i].BDCtl = 0; |
| 944 | continue; |
| 945 | } |
| 946 | lp->fbl_ptr->bd[i].BuffData = |
| 947 | cpu_to_le32(lp->rx_skbs[i].skb_dma); |
| 948 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 949 | /* BDID is index of FrFD.bd[] */ |
| 950 | lp->fbl_ptr->bd[i].BDCtl = |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 951 | cpu_to_le32(BD_CownsBD | (i << BD_RxBDID_SHIFT) | |
| 952 | RX_BUF_SIZE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 953 | } |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 954 | #ifdef TC35815_USE_PACKEDBUFFER |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 955 | lp->fbl_curid = 0; |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 956 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 957 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 958 | printk(KERN_DEBUG "%s: TxFD %p RxFD %p FrFD %p\n", |
| 959 | dev->name, lp->tfd_base, lp->rfd_base, lp->fbl_ptr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 960 | return 0; |
| 961 | } |
| 962 | |
| 963 | static void |
| 964 | tc35815_clear_queues(struct net_device *dev) |
| 965 | { |
| 966 | struct tc35815_local *lp = dev->priv; |
| 967 | int i; |
| 968 | |
| 969 | for (i = 0; i < TX_FD_NUM; i++) { |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 970 | u32 fdsystem = le32_to_cpu(lp->tfd_base[i].fd.FDSystem); |
| 971 | struct sk_buff *skb = |
| 972 | fdsystem != 0xffffffff ? |
| 973 | lp->tx_skbs[fdsystem].skb : NULL; |
| 974 | #ifdef DEBUG |
| 975 | if (lp->tx_skbs[i].skb != skb) { |
| 976 | printk("%s: tx_skbs mismatch(%d).\n", dev->name, i); |
| 977 | panic_queues(dev); |
| 978 | } |
| 979 | #else |
| 980 | BUG_ON(lp->tx_skbs[i].skb != skb); |
| 981 | #endif |
| 982 | if (skb) { |
| 983 | pci_unmap_single(lp->pci_dev, lp->tx_skbs[i].skb_dma, skb->len, PCI_DMA_TODEVICE); |
| 984 | lp->tx_skbs[i].skb = NULL; |
| 985 | lp->tx_skbs[i].skb_dma = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 986 | dev_kfree_skb_any(skb); |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 987 | } |
| 988 | lp->tfd_base[i].fd.FDSystem = cpu_to_le32(0xffffffff); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 989 | } |
| 990 | |
| 991 | tc35815_init_queues(dev); |
| 992 | } |
| 993 | |
| 994 | static void |
| 995 | tc35815_free_queues(struct net_device *dev) |
| 996 | { |
| 997 | struct tc35815_local *lp = dev->priv; |
| 998 | int i; |
| 999 | |
| 1000 | if (lp->tfd_base) { |
| 1001 | for (i = 0; i < TX_FD_NUM; i++) { |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1002 | u32 fdsystem = le32_to_cpu(lp->tfd_base[i].fd.FDSystem); |
| 1003 | struct sk_buff *skb = |
| 1004 | fdsystem != 0xffffffff ? |
| 1005 | lp->tx_skbs[fdsystem].skb : NULL; |
| 1006 | #ifdef DEBUG |
| 1007 | if (lp->tx_skbs[i].skb != skb) { |
| 1008 | printk("%s: tx_skbs mismatch(%d).\n", dev->name, i); |
| 1009 | panic_queues(dev); |
| 1010 | } |
| 1011 | #else |
| 1012 | BUG_ON(lp->tx_skbs[i].skb != skb); |
| 1013 | #endif |
| 1014 | if (skb) { |
| 1015 | dev_kfree_skb(skb); |
| 1016 | pci_unmap_single(lp->pci_dev, lp->tx_skbs[i].skb_dma, skb->len, PCI_DMA_TODEVICE); |
| 1017 | lp->tx_skbs[i].skb = NULL; |
| 1018 | lp->tx_skbs[i].skb_dma = 0; |
| 1019 | } |
| 1020 | lp->tfd_base[i].fd.FDSystem = cpu_to_le32(0xffffffff); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1021 | } |
| 1022 | } |
| 1023 | |
| 1024 | lp->rfd_base = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1025 | lp->rfd_limit = NULL; |
| 1026 | lp->rfd_cur = NULL; |
| 1027 | lp->fbl_ptr = NULL; |
| 1028 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1029 | for (i = 0; i < RX_BUF_NUM; i++) { |
| 1030 | #ifdef TC35815_USE_PACKEDBUFFER |
| 1031 | if (lp->data_buf[i]) { |
| 1032 | free_rxbuf_page(lp->pci_dev, |
| 1033 | lp->data_buf[i], lp->data_buf_dma[i]); |
| 1034 | lp->data_buf[i] = NULL; |
| 1035 | } |
| 1036 | #else |
| 1037 | if (lp->rx_skbs[i].skb) { |
| 1038 | free_rxbuf_skb(lp->pci_dev, lp->rx_skbs[i].skb, |
| 1039 | lp->rx_skbs[i].skb_dma); |
| 1040 | lp->rx_skbs[i].skb = NULL; |
| 1041 | } |
| 1042 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1043 | } |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1044 | if (lp->fd_buf) { |
| 1045 | pci_free_consistent(lp->pci_dev, PAGE_SIZE * FD_PAGE_NUM, |
| 1046 | lp->fd_buf, lp->fd_buf_dma); |
| 1047 | lp->fd_buf = NULL; |
| 1048 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1049 | } |
| 1050 | |
| 1051 | static void |
| 1052 | dump_txfd(struct TxFD *fd) |
| 1053 | { |
| 1054 | printk("TxFD(%p): %08x %08x %08x %08x\n", fd, |
| 1055 | le32_to_cpu(fd->fd.FDNext), |
| 1056 | le32_to_cpu(fd->fd.FDSystem), |
| 1057 | le32_to_cpu(fd->fd.FDStat), |
| 1058 | le32_to_cpu(fd->fd.FDCtl)); |
| 1059 | printk("BD: "); |
| 1060 | printk(" %08x %08x", |
| 1061 | le32_to_cpu(fd->bd.BuffData), |
| 1062 | le32_to_cpu(fd->bd.BDCtl)); |
| 1063 | printk("\n"); |
| 1064 | } |
| 1065 | |
| 1066 | static int |
| 1067 | dump_rxfd(struct RxFD *fd) |
| 1068 | { |
| 1069 | int i, bd_count = (le32_to_cpu(fd->fd.FDCtl) & FD_BDCnt_MASK) >> FD_BDCnt_SHIFT; |
| 1070 | if (bd_count > 8) |
| 1071 | bd_count = 8; |
| 1072 | printk("RxFD(%p): %08x %08x %08x %08x\n", fd, |
| 1073 | le32_to_cpu(fd->fd.FDNext), |
| 1074 | le32_to_cpu(fd->fd.FDSystem), |
| 1075 | le32_to_cpu(fd->fd.FDStat), |
| 1076 | le32_to_cpu(fd->fd.FDCtl)); |
| 1077 | if (le32_to_cpu(fd->fd.FDCtl) & FD_CownsFD) |
| 1078 | return 0; |
| 1079 | printk("BD: "); |
| 1080 | for (i = 0; i < bd_count; i++) |
| 1081 | printk(" %08x %08x", |
| 1082 | le32_to_cpu(fd->bd[i].BuffData), |
| 1083 | le32_to_cpu(fd->bd[i].BDCtl)); |
| 1084 | printk("\n"); |
| 1085 | return bd_count; |
| 1086 | } |
| 1087 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1088 | #if defined(DEBUG) || defined(TC35815_USE_PACKEDBUFFER) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1089 | static void |
| 1090 | dump_frfd(struct FrFD *fd) |
| 1091 | { |
| 1092 | int i; |
| 1093 | printk("FrFD(%p): %08x %08x %08x %08x\n", fd, |
| 1094 | le32_to_cpu(fd->fd.FDNext), |
| 1095 | le32_to_cpu(fd->fd.FDSystem), |
| 1096 | le32_to_cpu(fd->fd.FDStat), |
| 1097 | le32_to_cpu(fd->fd.FDCtl)); |
| 1098 | printk("BD: "); |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1099 | for (i = 0; i < RX_BUF_NUM; i++) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1100 | printk(" %08x %08x", |
| 1101 | le32_to_cpu(fd->bd[i].BuffData), |
| 1102 | le32_to_cpu(fd->bd[i].BDCtl)); |
| 1103 | printk("\n"); |
| 1104 | } |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1105 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1106 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1107 | #ifdef DEBUG |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1108 | static void |
| 1109 | panic_queues(struct net_device *dev) |
| 1110 | { |
| 1111 | struct tc35815_local *lp = dev->priv; |
| 1112 | int i; |
| 1113 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1114 | printk("TxFD base %p, start %u, end %u\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1115 | lp->tfd_base, lp->tfd_start, lp->tfd_end); |
| 1116 | printk("RxFD base %p limit %p cur %p\n", |
| 1117 | lp->rfd_base, lp->rfd_limit, lp->rfd_cur); |
| 1118 | printk("FrFD %p\n", lp->fbl_ptr); |
| 1119 | for (i = 0; i < TX_FD_NUM; i++) |
| 1120 | dump_txfd(&lp->tfd_base[i]); |
| 1121 | for (i = 0; i < RX_FD_NUM; i++) { |
| 1122 | int bd_count = dump_rxfd(&lp->rfd_base[i]); |
| 1123 | i += (bd_count + 1) / 2; /* skip BDs */ |
| 1124 | } |
| 1125 | dump_frfd(lp->fbl_ptr); |
| 1126 | panic("%s: Illegal queue state.", dev->name); |
| 1127 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1128 | #endif |
| 1129 | |
| 1130 | static void print_eth(char *add) |
| 1131 | { |
| 1132 | int i; |
| 1133 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1134 | printk("print_eth(%p)\n", add); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1135 | for (i = 0; i < 6; i++) |
| 1136 | printk(" %2.2X", (unsigned char) add[i + 6]); |
| 1137 | printk(" =>"); |
| 1138 | for (i = 0; i < 6; i++) |
| 1139 | printk(" %2.2X", (unsigned char) add[i]); |
| 1140 | printk(" : %2.2X%2.2X\n", (unsigned char) add[12], (unsigned char) add[13]); |
| 1141 | } |
| 1142 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1143 | static int tc35815_tx_full(struct net_device *dev) |
| 1144 | { |
| 1145 | struct tc35815_local *lp = dev->priv; |
| 1146 | return ((lp->tfd_start + 1) % TX_FD_NUM == lp->tfd_end); |
| 1147 | } |
| 1148 | |
| 1149 | static void tc35815_restart(struct net_device *dev) |
| 1150 | { |
| 1151 | struct tc35815_local *lp = dev->priv; |
| 1152 | int pid = lp->phy_addr; |
| 1153 | int do_phy_reset = 1; |
| 1154 | del_timer(&lp->timer); /* Kill if running */ |
| 1155 | |
| 1156 | if (lp->mii_id[0] == 0x0016 && (lp->mii_id[1] & 0xfc00) == 0xf800) { |
| 1157 | /* Resetting PHY cause problem on some chip... (SEEQ 80221) */ |
| 1158 | do_phy_reset = 0; |
| 1159 | } |
| 1160 | if (do_phy_reset) { |
| 1161 | int timeout; |
| 1162 | tc_mdio_write(dev, pid, MII_BMCR, BMCR_RESET); |
| 1163 | timeout = 100; |
| 1164 | while (--timeout) { |
| 1165 | if (!(tc_mdio_read(dev, pid, MII_BMCR) & BMCR_RESET)) |
| 1166 | break; |
| 1167 | udelay(1); |
| 1168 | } |
| 1169 | if (!timeout) |
| 1170 | printk(KERN_ERR "%s: BMCR reset failed.\n", dev->name); |
| 1171 | } |
| 1172 | |
| 1173 | tc35815_chip_reset(dev); |
| 1174 | tc35815_clear_queues(dev); |
| 1175 | tc35815_chip_init(dev); |
| 1176 | /* Reconfigure CAM again since tc35815_chip_init() initialize it. */ |
| 1177 | tc35815_set_multicast_list(dev); |
| 1178 | } |
| 1179 | |
| 1180 | static void tc35815_tx_timeout(struct net_device *dev) |
| 1181 | { |
| 1182 | struct tc35815_local *lp = dev->priv; |
| 1183 | struct tc35815_regs __iomem *tr = |
| 1184 | (struct tc35815_regs __iomem *)dev->base_addr; |
| 1185 | |
| 1186 | printk(KERN_WARNING "%s: transmit timed out, status %#x\n", |
| 1187 | dev->name, tc_readl(&tr->Tx_Stat)); |
| 1188 | |
| 1189 | /* Try to restart the adaptor. */ |
| 1190 | spin_lock_irq(&lp->lock); |
| 1191 | tc35815_restart(dev); |
| 1192 | spin_unlock_irq(&lp->lock); |
| 1193 | |
| 1194 | lp->stats.tx_errors++; |
| 1195 | |
| 1196 | /* If we have space available to accept new transmit |
| 1197 | * requests, wake up the queueing layer. This would |
| 1198 | * be the case if the chipset_init() call above just |
| 1199 | * flushes out the tx queue and empties it. |
| 1200 | * |
| 1201 | * If instead, the tx queue is retained then the |
| 1202 | * netif_wake_queue() call should be placed in the |
| 1203 | * TX completion interrupt handler of the driver instead |
| 1204 | * of here. |
| 1205 | */ |
| 1206 | if (!tc35815_tx_full(dev)) |
| 1207 | netif_wake_queue(dev); |
| 1208 | } |
| 1209 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1210 | /* |
| 1211 | * Open/initialize the board. This is called (in the current kernel) |
| 1212 | * sometime after booting when the 'ifconfig' program is run. |
| 1213 | * |
| 1214 | * This routine should set everything up anew at each open, even |
| 1215 | * registers that "should" only need to be set once at boot, so that |
| 1216 | * there is non-reboot way to recover if something goes wrong. |
| 1217 | */ |
| 1218 | static int |
| 1219 | tc35815_open(struct net_device *dev) |
| 1220 | { |
| 1221 | struct tc35815_local *lp = dev->priv; |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1222 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1223 | /* |
| 1224 | * This is used if the interrupt line can turned off (shared). |
| 1225 | * See 3c503.c for an example of selecting the IRQ at config-time. |
| 1226 | */ |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1227 | if (request_irq(dev->irq, &tc35815_interrupt, IRQF_SHARED, dev->name, dev)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1228 | return -EAGAIN; |
| 1229 | } |
| 1230 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1231 | del_timer(&lp->timer); /* Kill if running */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1232 | tc35815_chip_reset(dev); |
| 1233 | |
| 1234 | if (tc35815_init_queues(dev) != 0) { |
| 1235 | free_irq(dev->irq, dev); |
| 1236 | return -EAGAIN; |
| 1237 | } |
| 1238 | |
| 1239 | /* Reset the hardware here. Don't forget to set the station address. */ |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1240 | spin_lock_irq(&lp->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1241 | tc35815_chip_init(dev); |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1242 | spin_unlock_irq(&lp->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1243 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1244 | /* We are now ready to accept transmit requeusts from |
| 1245 | * the queueing layer of the networking. |
| 1246 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1247 | netif_start_queue(dev); |
| 1248 | |
| 1249 | return 0; |
| 1250 | } |
| 1251 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1252 | /* This will only be invoked if your driver is _not_ in XOFF state. |
| 1253 | * What this means is that you need not check it, and that this |
| 1254 | * invariant will hold if you make sure that the netif_*_queue() |
| 1255 | * calls are done at the proper times. |
| 1256 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1257 | static int tc35815_send_packet(struct sk_buff *skb, struct net_device *dev) |
| 1258 | { |
| 1259 | struct tc35815_local *lp = dev->priv; |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1260 | struct TxFD *txfd; |
| 1261 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1262 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1263 | /* If some error occurs while trying to transmit this |
| 1264 | * packet, you should return '1' from this function. |
| 1265 | * In such a case you _may not_ do anything to the |
| 1266 | * SKB, it is still owned by the network queueing |
| 1267 | * layer when an error is returned. This means you |
| 1268 | * may not modify any SKB fields, you may not free |
| 1269 | * the SKB, etc. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1270 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1271 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1272 | /* This is the most common case for modern hardware. |
| 1273 | * The spinlock protects this code from the TX complete |
| 1274 | * hardware interrupt handler. Queue flow control is |
| 1275 | * thus managed under this lock as well. |
| 1276 | */ |
| 1277 | spin_lock_irqsave(&lp->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1278 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1279 | /* failsafe... (handle txdone now if half of FDs are used) */ |
| 1280 | if ((lp->tfd_start + TX_FD_NUM - lp->tfd_end) % TX_FD_NUM > |
| 1281 | TX_FD_NUM / 2) |
| 1282 | tc35815_txdone(dev); |
| 1283 | |
| 1284 | if (netif_msg_pktdata(lp)) |
| 1285 | print_eth(skb->data); |
| 1286 | #ifdef DEBUG |
| 1287 | if (lp->tx_skbs[lp->tfd_start].skb) { |
| 1288 | printk("%s: tx_skbs conflict.\n", dev->name); |
| 1289 | panic_queues(dev); |
| 1290 | } |
| 1291 | #else |
| 1292 | BUG_ON(lp->tx_skbs[lp->tfd_start].skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1293 | #endif |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1294 | lp->tx_skbs[lp->tfd_start].skb = skb; |
| 1295 | lp->tx_skbs[lp->tfd_start].skb_dma = pci_map_single(lp->pci_dev, skb->data, skb->len, PCI_DMA_TODEVICE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1296 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1297 | /*add to ring */ |
| 1298 | txfd = &lp->tfd_base[lp->tfd_start]; |
| 1299 | txfd->bd.BuffData = cpu_to_le32(lp->tx_skbs[lp->tfd_start].skb_dma); |
| 1300 | txfd->bd.BDCtl = cpu_to_le32(skb->len); |
| 1301 | txfd->fd.FDSystem = cpu_to_le32(lp->tfd_start); |
| 1302 | txfd->fd.FDCtl = cpu_to_le32(FD_CownsFD | (1 << FD_BDCnt_SHIFT)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1303 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1304 | if (lp->tfd_start == lp->tfd_end) { |
| 1305 | struct tc35815_regs __iomem *tr = |
| 1306 | (struct tc35815_regs __iomem *)dev->base_addr; |
| 1307 | /* Start DMA Transmitter. */ |
| 1308 | txfd->fd.FDNext |= cpu_to_le32(FD_Next_EOL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1309 | #ifdef GATHER_TXINT |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1310 | txfd->fd.FDCtl |= cpu_to_le32(FD_FrmOpt_IntTx); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1311 | #endif |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1312 | if (netif_msg_tx_queued(lp)) { |
| 1313 | printk("%s: starting TxFD.\n", dev->name); |
| 1314 | dump_txfd(txfd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1315 | } |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1316 | tc_writel(fd_virt_to_bus(lp, txfd), &tr->TxFrmPtr); |
| 1317 | } else { |
| 1318 | txfd->fd.FDNext &= cpu_to_le32(~FD_Next_EOL); |
| 1319 | if (netif_msg_tx_queued(lp)) { |
| 1320 | printk("%s: queueing TxFD.\n", dev->name); |
| 1321 | dump_txfd(txfd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1322 | } |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1323 | } |
| 1324 | lp->tfd_start = (lp->tfd_start + 1) % TX_FD_NUM; |
| 1325 | |
| 1326 | dev->trans_start = jiffies; |
| 1327 | |
| 1328 | /* If we just used up the very last entry in the |
| 1329 | * TX ring on this device, tell the queueing |
| 1330 | * layer to send no more. |
| 1331 | */ |
| 1332 | if (tc35815_tx_full(dev)) { |
| 1333 | if (netif_msg_tx_queued(lp)) |
| 1334 | printk(KERN_WARNING "%s: TxFD Exhausted.\n", dev->name); |
| 1335 | netif_stop_queue(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1336 | } |
| 1337 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1338 | /* When the TX completion hw interrupt arrives, this |
| 1339 | * is when the transmit statistics are updated. |
| 1340 | */ |
| 1341 | |
| 1342 | spin_unlock_irqrestore(&lp->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1343 | return 0; |
| 1344 | } |
| 1345 | |
| 1346 | #define FATAL_ERROR_INT \ |
| 1347 | (Int_IntPCI | Int_DmParErr | Int_IntNRAbt) |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1348 | static void tc35815_fatal_error_interrupt(struct net_device *dev, u32 status) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1349 | { |
| 1350 | static int count; |
| 1351 | printk(KERN_WARNING "%s: Fatal Error Intterrupt (%#x):", |
| 1352 | dev->name, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1353 | if (status & Int_IntPCI) |
| 1354 | printk(" IntPCI"); |
| 1355 | if (status & Int_DmParErr) |
| 1356 | printk(" DmParErr"); |
| 1357 | if (status & Int_IntNRAbt) |
| 1358 | printk(" IntNRAbt"); |
| 1359 | printk("\n"); |
| 1360 | if (count++ > 100) |
| 1361 | panic("%s: Too many fatal errors.", dev->name); |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1362 | printk(KERN_WARNING "%s: Resetting ...\n", dev->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1363 | /* Try to restart the adaptor. */ |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1364 | tc35815_restart(dev); |
| 1365 | } |
| 1366 | |
| 1367 | #ifdef TC35815_NAPI |
| 1368 | static int tc35815_do_interrupt(struct net_device *dev, u32 status, int limit) |
| 1369 | #else |
| 1370 | static int tc35815_do_interrupt(struct net_device *dev, u32 status) |
| 1371 | #endif |
| 1372 | { |
| 1373 | struct tc35815_local *lp = dev->priv; |
| 1374 | struct tc35815_regs __iomem *tr = |
| 1375 | (struct tc35815_regs __iomem *)dev->base_addr; |
| 1376 | int ret = -1; |
| 1377 | |
| 1378 | /* Fatal errors... */ |
| 1379 | if (status & FATAL_ERROR_INT) { |
| 1380 | tc35815_fatal_error_interrupt(dev, status); |
| 1381 | return 0; |
| 1382 | } |
| 1383 | /* recoverable errors */ |
| 1384 | if (status & Int_IntFDAEx) { |
| 1385 | /* disable FDAEx int. (until we make rooms...) */ |
| 1386 | tc_writel(tc_readl(&tr->Int_En) & ~Int_FDAExEn, &tr->Int_En); |
| 1387 | printk(KERN_WARNING |
| 1388 | "%s: Free Descriptor Area Exhausted (%#x).\n", |
| 1389 | dev->name, status); |
| 1390 | lp->stats.rx_dropped++; |
| 1391 | ret = 0; |
| 1392 | } |
| 1393 | if (status & Int_IntBLEx) { |
| 1394 | /* disable BLEx int. (until we make rooms...) */ |
| 1395 | tc_writel(tc_readl(&tr->Int_En) & ~Int_BLExEn, &tr->Int_En); |
| 1396 | printk(KERN_WARNING |
| 1397 | "%s: Buffer List Exhausted (%#x).\n", |
| 1398 | dev->name, status); |
| 1399 | lp->stats.rx_dropped++; |
| 1400 | ret = 0; |
| 1401 | } |
| 1402 | if (status & Int_IntExBD) { |
| 1403 | printk(KERN_WARNING |
| 1404 | "%s: Excessive Buffer Descriptiors (%#x).\n", |
| 1405 | dev->name, status); |
| 1406 | lp->stats.rx_length_errors++; |
| 1407 | ret = 0; |
| 1408 | } |
| 1409 | |
| 1410 | /* normal notification */ |
| 1411 | if (status & Int_IntMacRx) { |
| 1412 | /* Got a packet(s). */ |
| 1413 | #ifdef TC35815_NAPI |
| 1414 | ret = tc35815_rx(dev, limit); |
| 1415 | #else |
| 1416 | tc35815_rx(dev); |
| 1417 | ret = 0; |
| 1418 | #endif |
| 1419 | lp->lstats.rx_ints++; |
| 1420 | } |
| 1421 | if (status & Int_IntMacTx) { |
| 1422 | /* Transmit complete. */ |
| 1423 | lp->lstats.tx_ints++; |
| 1424 | tc35815_txdone(dev); |
| 1425 | netif_wake_queue(dev); |
| 1426 | ret = 0; |
| 1427 | } |
| 1428 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1429 | } |
| 1430 | |
| 1431 | /* |
| 1432 | * The typical workload of the driver: |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1433 | * Handle the network interface interrupts. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1434 | */ |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 1435 | static irqreturn_t tc35815_interrupt(int irq, void *dev_id) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1436 | { |
| 1437 | struct net_device *dev = dev_id; |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1438 | struct tc35815_regs __iomem *tr = |
| 1439 | (struct tc35815_regs __iomem *)dev->base_addr; |
| 1440 | #ifdef TC35815_NAPI |
| 1441 | u32 dmactl = tc_readl(&tr->DMA_Ctl); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1442 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1443 | if (!(dmactl & DMA_IntMask)) { |
| 1444 | /* disable interrupts */ |
| 1445 | tc_writel(dmactl | DMA_IntMask, &tr->DMA_Ctl); |
| 1446 | if (netif_rx_schedule_prep(dev)) |
| 1447 | __netif_rx_schedule(dev); |
| 1448 | else { |
| 1449 | printk(KERN_ERR "%s: interrupt taken in poll\n", |
| 1450 | dev->name); |
| 1451 | BUG(); |
| 1452 | } |
| 1453 | (void)tc_readl(&tr->Int_Src); /* flush */ |
| 1454 | return IRQ_HANDLED; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1455 | } |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1456 | return IRQ_NONE; |
| 1457 | #else |
| 1458 | struct tc35815_local *lp = dev->priv; |
| 1459 | int handled; |
| 1460 | u32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1461 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1462 | spin_lock(&lp->lock); |
| 1463 | status = tc_readl(&tr->Int_Src); |
| 1464 | tc_writel(status, &tr->Int_Src); /* write to clear */ |
| 1465 | handled = tc35815_do_interrupt(dev, status); |
| 1466 | (void)tc_readl(&tr->Int_Src); /* flush */ |
| 1467 | spin_unlock(&lp->lock); |
| 1468 | return IRQ_RETVAL(handled >= 0); |
| 1469 | #endif /* TC35815_NAPI */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1470 | } |
| 1471 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1472 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 1473 | static void tc35815_poll_controller(struct net_device *dev) |
| 1474 | { |
| 1475 | disable_irq(dev->irq); |
| 1476 | tc35815_interrupt(dev->irq, dev); |
| 1477 | enable_irq(dev->irq); |
| 1478 | } |
| 1479 | #endif |
| 1480 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1481 | /* We have a good packet(s), get it/them out of the buffers. */ |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1482 | #ifdef TC35815_NAPI |
| 1483 | static int |
| 1484 | tc35815_rx(struct net_device *dev, int limit) |
| 1485 | #else |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1486 | static void |
| 1487 | tc35815_rx(struct net_device *dev) |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1488 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1489 | { |
| 1490 | struct tc35815_local *lp = dev->priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1491 | unsigned int fdctl; |
| 1492 | int i; |
| 1493 | int buf_free_count = 0; |
| 1494 | int fd_free_count = 0; |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1495 | #ifdef TC35815_NAPI |
| 1496 | int received = 0; |
| 1497 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1498 | |
| 1499 | while (!((fdctl = le32_to_cpu(lp->rfd_cur->fd.FDCtl)) & FD_CownsFD)) { |
| 1500 | int status = le32_to_cpu(lp->rfd_cur->fd.FDStat); |
| 1501 | int pkt_len = fdctl & FD_FDLength_MASK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1502 | int bd_count = (fdctl & FD_BDCnt_MASK) >> FD_BDCnt_SHIFT; |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1503 | #ifdef DEBUG |
| 1504 | struct RxFD *next_rfd; |
| 1505 | #endif |
| 1506 | #if (RX_CTL_CMD & Rx_StripCRC) == 0 |
| 1507 | pkt_len -= 4; |
| 1508 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1509 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1510 | if (netif_msg_rx_status(lp)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1511 | dump_rxfd(lp->rfd_cur); |
| 1512 | if (status & Rx_Good) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1513 | struct sk_buff *skb; |
| 1514 | unsigned char *data; |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1515 | int cur_bd; |
| 1516 | #ifdef TC35815_USE_PACKEDBUFFER |
| 1517 | int offset; |
| 1518 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1519 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1520 | #ifdef TC35815_NAPI |
| 1521 | if (--limit < 0) |
| 1522 | break; |
| 1523 | #endif |
| 1524 | #ifdef TC35815_USE_PACKEDBUFFER |
| 1525 | BUG_ON(bd_count > 2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1526 | skb = dev_alloc_skb(pkt_len + 2); /* +2: for reserve */ |
| 1527 | if (skb == NULL) { |
| 1528 | printk(KERN_NOTICE "%s: Memory squeeze, dropping packet.\n", |
| 1529 | dev->name); |
| 1530 | lp->stats.rx_dropped++; |
| 1531 | break; |
| 1532 | } |
| 1533 | skb_reserve(skb, 2); /* 16 bit alignment */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1534 | |
| 1535 | data = skb_put(skb, pkt_len); |
| 1536 | |
| 1537 | /* copy from receive buffer */ |
| 1538 | cur_bd = 0; |
| 1539 | offset = 0; |
| 1540 | while (offset < pkt_len && cur_bd < bd_count) { |
| 1541 | int len = le32_to_cpu(lp->rfd_cur->bd[cur_bd].BDCtl) & |
| 1542 | BD_BuffLength_MASK; |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1543 | dma_addr_t dma = le32_to_cpu(lp->rfd_cur->bd[cur_bd].BuffData); |
| 1544 | void *rxbuf = rxbuf_bus_to_virt(lp, dma); |
| 1545 | if (offset + len > pkt_len) |
| 1546 | len = pkt_len - offset; |
| 1547 | #ifdef TC35815_DMA_SYNC_ONDEMAND |
| 1548 | pci_dma_sync_single_for_cpu(lp->pci_dev, |
| 1549 | dma, len, |
| 1550 | PCI_DMA_FROMDEVICE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1551 | #endif |
| 1552 | memcpy(data + offset, rxbuf, len); |
| 1553 | offset += len; |
| 1554 | cur_bd++; |
| 1555 | } |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1556 | #else /* TC35815_USE_PACKEDBUFFER */ |
| 1557 | BUG_ON(bd_count > 1); |
| 1558 | cur_bd = (le32_to_cpu(lp->rfd_cur->bd[0].BDCtl) |
| 1559 | & BD_RxBDID_MASK) >> BD_RxBDID_SHIFT; |
| 1560 | #ifdef DEBUG |
| 1561 | if (cur_bd >= RX_BUF_NUM) { |
| 1562 | printk("%s: invalid BDID.\n", dev->name); |
| 1563 | panic_queues(dev); |
| 1564 | } |
| 1565 | BUG_ON(lp->rx_skbs[cur_bd].skb_dma != |
| 1566 | (le32_to_cpu(lp->rfd_cur->bd[0].BuffData) & ~3)); |
| 1567 | if (!lp->rx_skbs[cur_bd].skb) { |
| 1568 | printk("%s: NULL skb.\n", dev->name); |
| 1569 | panic_queues(dev); |
| 1570 | } |
| 1571 | #else |
| 1572 | BUG_ON(cur_bd >= RX_BUF_NUM); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1573 | #endif |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1574 | skb = lp->rx_skbs[cur_bd].skb; |
| 1575 | prefetch(skb->data); |
| 1576 | lp->rx_skbs[cur_bd].skb = NULL; |
| 1577 | lp->fbl_count--; |
| 1578 | pci_unmap_single(lp->pci_dev, |
| 1579 | lp->rx_skbs[cur_bd].skb_dma, |
| 1580 | RX_BUF_SIZE, PCI_DMA_FROMDEVICE); |
| 1581 | if (!HAVE_DMA_RXALIGN(lp)) |
| 1582 | memmove(skb->data, skb->data - 2, pkt_len); |
| 1583 | data = skb_put(skb, pkt_len); |
| 1584 | #endif /* TC35815_USE_PACKEDBUFFER */ |
| 1585 | if (netif_msg_pktdata(lp)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1586 | print_eth(data); |
| 1587 | skb->protocol = eth_type_trans(skb, dev); |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1588 | #ifdef TC35815_NAPI |
| 1589 | netif_receive_skb(skb); |
| 1590 | received++; |
| 1591 | #else |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1592 | netif_rx(skb); |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1593 | #endif |
| 1594 | dev->last_rx = jiffies; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1595 | lp->stats.rx_packets++; |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1596 | lp->stats.rx_bytes += pkt_len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1597 | } else { |
| 1598 | lp->stats.rx_errors++; |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1599 | printk(KERN_DEBUG "%s: Rx error (status %x)\n", |
| 1600 | dev->name, status & Rx_Stat_Mask); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1601 | /* WORKAROUND: LongErr and CRCErr means Overflow. */ |
| 1602 | if ((status & Rx_LongErr) && (status & Rx_CRCErr)) { |
| 1603 | status &= ~(Rx_LongErr|Rx_CRCErr); |
| 1604 | status |= Rx_Over; |
| 1605 | } |
| 1606 | if (status & Rx_LongErr) lp->stats.rx_length_errors++; |
| 1607 | if (status & Rx_Over) lp->stats.rx_fifo_errors++; |
| 1608 | if (status & Rx_CRCErr) lp->stats.rx_crc_errors++; |
| 1609 | if (status & Rx_Align) lp->stats.rx_frame_errors++; |
| 1610 | } |
| 1611 | |
| 1612 | if (bd_count > 0) { |
| 1613 | /* put Free Buffer back to controller */ |
| 1614 | int bdctl = le32_to_cpu(lp->rfd_cur->bd[bd_count - 1].BDCtl); |
| 1615 | unsigned char id = |
| 1616 | (bdctl & BD_RxBDID_MASK) >> BD_RxBDID_SHIFT; |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1617 | #ifdef DEBUG |
| 1618 | if (id >= RX_BUF_NUM) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1619 | printk("%s: invalid BDID.\n", dev->name); |
| 1620 | panic_queues(dev); |
| 1621 | } |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1622 | #else |
| 1623 | BUG_ON(id >= RX_BUF_NUM); |
| 1624 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1625 | /* free old buffers */ |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1626 | #ifdef TC35815_USE_PACKEDBUFFER |
| 1627 | while (lp->fbl_curid != id) |
| 1628 | #else |
| 1629 | while (lp->fbl_count < RX_BUF_NUM) |
| 1630 | #endif |
| 1631 | { |
| 1632 | #ifdef TC35815_USE_PACKEDBUFFER |
| 1633 | unsigned char curid = lp->fbl_curid; |
| 1634 | #else |
| 1635 | unsigned char curid = |
| 1636 | (id + 1 + lp->fbl_count) % RX_BUF_NUM; |
| 1637 | #endif |
| 1638 | struct BDesc *bd = &lp->fbl_ptr->bd[curid]; |
| 1639 | #ifdef DEBUG |
| 1640 | bdctl = le32_to_cpu(bd->BDCtl); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1641 | if (bdctl & BD_CownsBD) { |
| 1642 | printk("%s: Freeing invalid BD.\n", |
| 1643 | dev->name); |
| 1644 | panic_queues(dev); |
| 1645 | } |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1646 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1647 | /* pass BD to controler */ |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1648 | #ifndef TC35815_USE_PACKEDBUFFER |
| 1649 | if (!lp->rx_skbs[curid].skb) { |
| 1650 | lp->rx_skbs[curid].skb = |
| 1651 | alloc_rxbuf_skb(dev, |
| 1652 | lp->pci_dev, |
| 1653 | &lp->rx_skbs[curid].skb_dma); |
| 1654 | if (!lp->rx_skbs[curid].skb) |
| 1655 | break; /* try on next reception */ |
| 1656 | bd->BuffData = cpu_to_le32(lp->rx_skbs[curid].skb_dma); |
| 1657 | } |
| 1658 | #endif /* TC35815_USE_PACKEDBUFFER */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1659 | /* Note: BDLength was modified by chip. */ |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1660 | bd->BDCtl = cpu_to_le32(BD_CownsBD | |
| 1661 | (curid << BD_RxBDID_SHIFT) | |
| 1662 | RX_BUF_SIZE); |
| 1663 | #ifdef TC35815_USE_PACKEDBUFFER |
| 1664 | lp->fbl_curid = (curid + 1) % RX_BUF_NUM; |
| 1665 | if (netif_msg_rx_status(lp)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1666 | printk("%s: Entering new FBD %d\n", |
| 1667 | dev->name, lp->fbl_curid); |
| 1668 | dump_frfd(lp->fbl_ptr); |
| 1669 | } |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1670 | #else |
| 1671 | lp->fbl_count++; |
| 1672 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1673 | buf_free_count++; |
| 1674 | } |
| 1675 | } |
| 1676 | |
| 1677 | /* put RxFD back to controller */ |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1678 | #ifdef DEBUG |
| 1679 | next_rfd = fd_bus_to_virt(lp, |
| 1680 | le32_to_cpu(lp->rfd_cur->fd.FDNext)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1681 | if (next_rfd < lp->rfd_base || next_rfd > lp->rfd_limit) { |
| 1682 | printk("%s: RxFD FDNext invalid.\n", dev->name); |
| 1683 | panic_queues(dev); |
| 1684 | } |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1685 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1686 | for (i = 0; i < (bd_count + 1) / 2 + 1; i++) { |
| 1687 | /* pass FD to controler */ |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1688 | #ifdef DEBUG |
| 1689 | lp->rfd_cur->fd.FDNext = cpu_to_le32(0xdeaddead); |
| 1690 | #else |
| 1691 | lp->rfd_cur->fd.FDNext = cpu_to_le32(FD_Next_EOL); |
| 1692 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1693 | lp->rfd_cur->fd.FDCtl = cpu_to_le32(FD_CownsFD); |
| 1694 | lp->rfd_cur++; |
| 1695 | fd_free_count++; |
| 1696 | } |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1697 | if (lp->rfd_cur > lp->rfd_limit) |
| 1698 | lp->rfd_cur = lp->rfd_base; |
| 1699 | #ifdef DEBUG |
| 1700 | if (lp->rfd_cur != next_rfd) |
| 1701 | printk("rfd_cur = %p, next_rfd %p\n", |
| 1702 | lp->rfd_cur, next_rfd); |
| 1703 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1704 | } |
| 1705 | |
| 1706 | /* re-enable BL/FDA Exhaust interrupts. */ |
| 1707 | if (fd_free_count) { |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1708 | struct tc35815_regs __iomem *tr = |
| 1709 | (struct tc35815_regs __iomem *)dev->base_addr; |
| 1710 | u32 en, en_old = tc_readl(&tr->Int_En); |
| 1711 | en = en_old | Int_FDAExEn; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1712 | if (buf_free_count) |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1713 | en |= Int_BLExEn; |
| 1714 | if (en != en_old) |
| 1715 | tc_writel(en, &tr->Int_En); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1716 | } |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1717 | #ifdef TC35815_NAPI |
| 1718 | return received; |
| 1719 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1720 | } |
| 1721 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1722 | #ifdef TC35815_NAPI |
| 1723 | static int |
| 1724 | tc35815_poll(struct net_device *dev, int *budget) |
| 1725 | { |
| 1726 | struct tc35815_local *lp = dev->priv; |
| 1727 | struct tc35815_regs __iomem *tr = |
| 1728 | (struct tc35815_regs __iomem *)dev->base_addr; |
| 1729 | int limit = min(*budget, dev->quota); |
| 1730 | int received = 0, handled; |
| 1731 | u32 status; |
| 1732 | |
| 1733 | spin_lock(&lp->lock); |
| 1734 | status = tc_readl(&tr->Int_Src); |
| 1735 | do { |
| 1736 | tc_writel(status, &tr->Int_Src); /* write to clear */ |
| 1737 | |
| 1738 | handled = tc35815_do_interrupt(dev, status, limit); |
| 1739 | if (handled >= 0) { |
| 1740 | received += handled; |
| 1741 | limit -= handled; |
| 1742 | if (limit <= 0) |
| 1743 | break; |
| 1744 | } |
| 1745 | status = tc_readl(&tr->Int_Src); |
| 1746 | } while (status); |
| 1747 | spin_unlock(&lp->lock); |
| 1748 | |
| 1749 | dev->quota -= received; |
| 1750 | *budget -= received; |
| 1751 | if (limit <= 0) |
| 1752 | return 1; |
| 1753 | |
| 1754 | netif_rx_complete(dev); |
| 1755 | /* enable interrupts */ |
| 1756 | tc_writel(tc_readl(&tr->DMA_Ctl) & ~DMA_IntMask, &tr->DMA_Ctl); |
| 1757 | return 0; |
| 1758 | } |
| 1759 | #endif |
| 1760 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1761 | #ifdef NO_CHECK_CARRIER |
| 1762 | #define TX_STA_ERR (Tx_ExColl|Tx_Under|Tx_Defer|Tx_LateColl|Tx_TxPar|Tx_SQErr) |
| 1763 | #else |
| 1764 | #define TX_STA_ERR (Tx_ExColl|Tx_Under|Tx_Defer|Tx_NCarr|Tx_LateColl|Tx_TxPar|Tx_SQErr) |
| 1765 | #endif |
| 1766 | |
| 1767 | static void |
| 1768 | tc35815_check_tx_stat(struct net_device *dev, int status) |
| 1769 | { |
| 1770 | struct tc35815_local *lp = dev->priv; |
| 1771 | const char *msg = NULL; |
| 1772 | |
| 1773 | /* count collisions */ |
| 1774 | if (status & Tx_ExColl) |
| 1775 | lp->stats.collisions += 16; |
| 1776 | if (status & Tx_TxColl_MASK) |
| 1777 | lp->stats.collisions += status & Tx_TxColl_MASK; |
| 1778 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1779 | #ifndef NO_CHECK_CARRIER |
| 1780 | /* TX4939 does not have NCarr */ |
| 1781 | if (lp->boardtype == TC35815_TX4939) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1782 | status &= ~Tx_NCarr; |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1783 | #ifdef WORKAROUND_LOSTCAR |
| 1784 | /* WORKAROUND: ignore LostCrS in full duplex operation */ |
| 1785 | if ((lp->timer_state != asleep && lp->timer_state != lcheck) |
| 1786 | || lp->fullduplex) |
| 1787 | status &= ~Tx_NCarr; |
| 1788 | #endif |
| 1789 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1790 | |
| 1791 | if (!(status & TX_STA_ERR)) { |
| 1792 | /* no error. */ |
| 1793 | lp->stats.tx_packets++; |
| 1794 | return; |
| 1795 | } |
| 1796 | |
| 1797 | lp->stats.tx_errors++; |
| 1798 | if (status & Tx_ExColl) { |
| 1799 | lp->stats.tx_aborted_errors++; |
| 1800 | msg = "Excessive Collision."; |
| 1801 | } |
| 1802 | if (status & Tx_Under) { |
| 1803 | lp->stats.tx_fifo_errors++; |
| 1804 | msg = "Tx FIFO Underrun."; |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1805 | if (lp->lstats.tx_underrun < TX_THRESHOLD_KEEP_LIMIT) { |
| 1806 | lp->lstats.tx_underrun++; |
| 1807 | if (lp->lstats.tx_underrun >= TX_THRESHOLD_KEEP_LIMIT) { |
| 1808 | struct tc35815_regs __iomem *tr = |
| 1809 | (struct tc35815_regs __iomem *)dev->base_addr; |
| 1810 | tc_writel(TX_THRESHOLD_MAX, &tr->TxThrsh); |
| 1811 | msg = "Tx FIFO Underrun.Change Tx threshold to max."; |
| 1812 | } |
| 1813 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1814 | } |
| 1815 | if (status & Tx_Defer) { |
| 1816 | lp->stats.tx_fifo_errors++; |
| 1817 | msg = "Excessive Deferral."; |
| 1818 | } |
| 1819 | #ifndef NO_CHECK_CARRIER |
| 1820 | if (status & Tx_NCarr) { |
| 1821 | lp->stats.tx_carrier_errors++; |
| 1822 | msg = "Lost Carrier Sense."; |
| 1823 | } |
| 1824 | #endif |
| 1825 | if (status & Tx_LateColl) { |
| 1826 | lp->stats.tx_aborted_errors++; |
| 1827 | msg = "Late Collision."; |
| 1828 | } |
| 1829 | if (status & Tx_TxPar) { |
| 1830 | lp->stats.tx_fifo_errors++; |
| 1831 | msg = "Transmit Parity Error."; |
| 1832 | } |
| 1833 | if (status & Tx_SQErr) { |
| 1834 | lp->stats.tx_heartbeat_errors++; |
| 1835 | msg = "Signal Quality Error."; |
| 1836 | } |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1837 | if (msg && netif_msg_tx_err(lp)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1838 | printk(KERN_WARNING "%s: %s (%#x)\n", dev->name, msg, status); |
| 1839 | } |
| 1840 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1841 | /* This handles TX complete events posted by the device |
| 1842 | * via interrupts. |
| 1843 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1844 | static void |
| 1845 | tc35815_txdone(struct net_device *dev) |
| 1846 | { |
| 1847 | struct tc35815_local *lp = dev->priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1848 | struct TxFD *txfd; |
| 1849 | unsigned int fdctl; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1850 | |
| 1851 | txfd = &lp->tfd_base[lp->tfd_end]; |
| 1852 | while (lp->tfd_start != lp->tfd_end && |
| 1853 | !((fdctl = le32_to_cpu(txfd->fd.FDCtl)) & FD_CownsFD)) { |
| 1854 | int status = le32_to_cpu(txfd->fd.FDStat); |
| 1855 | struct sk_buff *skb; |
| 1856 | unsigned long fdnext = le32_to_cpu(txfd->fd.FDNext); |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1857 | u32 fdsystem = le32_to_cpu(txfd->fd.FDSystem); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1858 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1859 | if (netif_msg_tx_done(lp)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1860 | printk("%s: complete TxFD.\n", dev->name); |
| 1861 | dump_txfd(txfd); |
| 1862 | } |
| 1863 | tc35815_check_tx_stat(dev, status); |
| 1864 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1865 | skb = fdsystem != 0xffffffff ? |
| 1866 | lp->tx_skbs[fdsystem].skb : NULL; |
| 1867 | #ifdef DEBUG |
| 1868 | if (lp->tx_skbs[lp->tfd_end].skb != skb) { |
| 1869 | printk("%s: tx_skbs mismatch.\n", dev->name); |
| 1870 | panic_queues(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1871 | } |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1872 | #else |
| 1873 | BUG_ON(lp->tx_skbs[lp->tfd_end].skb != skb); |
| 1874 | #endif |
| 1875 | if (skb) { |
| 1876 | lp->stats.tx_bytes += skb->len; |
| 1877 | pci_unmap_single(lp->pci_dev, lp->tx_skbs[lp->tfd_end].skb_dma, skb->len, PCI_DMA_TODEVICE); |
| 1878 | lp->tx_skbs[lp->tfd_end].skb = NULL; |
| 1879 | lp->tx_skbs[lp->tfd_end].skb_dma = 0; |
| 1880 | #ifdef TC35815_NAPI |
| 1881 | dev_kfree_skb_any(skb); |
| 1882 | #else |
| 1883 | dev_kfree_skb_irq(skb); |
| 1884 | #endif |
| 1885 | } |
| 1886 | txfd->fd.FDSystem = cpu_to_le32(0xffffffff); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1887 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1888 | lp->tfd_end = (lp->tfd_end + 1) % TX_FD_NUM; |
| 1889 | txfd = &lp->tfd_base[lp->tfd_end]; |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1890 | #ifdef DEBUG |
| 1891 | if ((fdnext & ~FD_Next_EOL) != fd_virt_to_bus(lp, txfd)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1892 | printk("%s: TxFD FDNext invalid.\n", dev->name); |
| 1893 | panic_queues(dev); |
| 1894 | } |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1895 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1896 | if (fdnext & FD_Next_EOL) { |
| 1897 | /* DMA Transmitter has been stopping... */ |
| 1898 | if (lp->tfd_end != lp->tfd_start) { |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1899 | struct tc35815_regs __iomem *tr = |
| 1900 | (struct tc35815_regs __iomem *)dev->base_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1901 | int head = (lp->tfd_start + TX_FD_NUM - 1) % TX_FD_NUM; |
| 1902 | struct TxFD* txhead = &lp->tfd_base[head]; |
| 1903 | int qlen = (lp->tfd_start + TX_FD_NUM |
| 1904 | - lp->tfd_end) % TX_FD_NUM; |
| 1905 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1906 | #ifdef DEBUG |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1907 | if (!(le32_to_cpu(txfd->fd.FDCtl) & FD_CownsFD)) { |
| 1908 | printk("%s: TxFD FDCtl invalid.\n", dev->name); |
| 1909 | panic_queues(dev); |
| 1910 | } |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1911 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1912 | /* log max queue length */ |
| 1913 | if (lp->lstats.max_tx_qlen < qlen) |
| 1914 | lp->lstats.max_tx_qlen = qlen; |
| 1915 | |
| 1916 | |
| 1917 | /* start DMA Transmitter again */ |
| 1918 | txhead->fd.FDNext |= cpu_to_le32(FD_Next_EOL); |
| 1919 | #ifdef GATHER_TXINT |
| 1920 | txhead->fd.FDCtl |= cpu_to_le32(FD_FrmOpt_IntTx); |
| 1921 | #endif |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1922 | if (netif_msg_tx_queued(lp)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1923 | printk("%s: start TxFD on queue.\n", |
| 1924 | dev->name); |
| 1925 | dump_txfd(txfd); |
| 1926 | } |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1927 | tc_writel(fd_virt_to_bus(lp, txfd), &tr->TxFrmPtr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1928 | } |
| 1929 | break; |
| 1930 | } |
| 1931 | } |
| 1932 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1933 | /* If we had stopped the queue due to a "tx full" |
| 1934 | * condition, and space has now been made available, |
| 1935 | * wake up the queue. |
| 1936 | */ |
| 1937 | if (netif_queue_stopped(dev) && ! tc35815_tx_full(dev)) |
| 1938 | netif_wake_queue(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1939 | } |
| 1940 | |
| 1941 | /* The inverse routine to tc35815_open(). */ |
| 1942 | static int |
| 1943 | tc35815_close(struct net_device *dev) |
| 1944 | { |
| 1945 | struct tc35815_local *lp = dev->priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1946 | netif_stop_queue(dev); |
| 1947 | |
| 1948 | /* Flush the Tx and disable Rx here. */ |
| 1949 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1950 | del_timer(&lp->timer); /* Kill if running */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1951 | tc35815_chip_reset(dev); |
| 1952 | free_irq(dev->irq, dev); |
| 1953 | |
| 1954 | tc35815_free_queues(dev); |
| 1955 | |
| 1956 | return 0; |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1957 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1958 | } |
| 1959 | |
| 1960 | /* |
| 1961 | * Get the current statistics. |
| 1962 | * This may be called with the card open or closed. |
| 1963 | */ |
| 1964 | static struct net_device_stats *tc35815_get_stats(struct net_device *dev) |
| 1965 | { |
| 1966 | struct tc35815_local *lp = dev->priv; |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1967 | struct tc35815_regs __iomem *tr = |
| 1968 | (struct tc35815_regs __iomem *)dev->base_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1969 | if (netif_running(dev)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1970 | /* Update the statistics from the device registers. */ |
| 1971 | lp->stats.rx_missed_errors = tc_readl(&tr->Miss_Cnt); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1972 | } |
| 1973 | |
| 1974 | return &lp->stats; |
| 1975 | } |
| 1976 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1977 | static void tc35815_set_cam_entry(struct net_device *dev, int index, unsigned char *addr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1978 | { |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1979 | struct tc35815_local *lp = dev->priv; |
| 1980 | struct tc35815_regs __iomem *tr = |
| 1981 | (struct tc35815_regs __iomem *)dev->base_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1982 | int cam_index = index * 6; |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1983 | u32 cam_data; |
| 1984 | u32 saved_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1985 | saved_addr = tc_readl(&tr->CAM_Adr); |
| 1986 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1987 | if (netif_msg_hw(lp)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1988 | int i; |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 1989 | printk(KERN_DEBUG "%s: CAM %d:", dev->name, index); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1990 | for (i = 0; i < 6; i++) |
| 1991 | printk(" %02x", addr[i]); |
| 1992 | printk("\n"); |
| 1993 | } |
| 1994 | if (index & 1) { |
| 1995 | /* read modify write */ |
| 1996 | tc_writel(cam_index - 2, &tr->CAM_Adr); |
| 1997 | cam_data = tc_readl(&tr->CAM_Data) & 0xffff0000; |
| 1998 | cam_data |= addr[0] << 8 | addr[1]; |
| 1999 | tc_writel(cam_data, &tr->CAM_Data); |
| 2000 | /* write whole word */ |
| 2001 | tc_writel(cam_index + 2, &tr->CAM_Adr); |
| 2002 | cam_data = (addr[2] << 24) | (addr[3] << 16) | (addr[4] << 8) | addr[5]; |
| 2003 | tc_writel(cam_data, &tr->CAM_Data); |
| 2004 | } else { |
| 2005 | /* write whole word */ |
| 2006 | tc_writel(cam_index, &tr->CAM_Adr); |
| 2007 | cam_data = (addr[0] << 24) | (addr[1] << 16) | (addr[2] << 8) | addr[3]; |
| 2008 | tc_writel(cam_data, &tr->CAM_Data); |
| 2009 | /* read modify write */ |
| 2010 | tc_writel(cam_index + 4, &tr->CAM_Adr); |
| 2011 | cam_data = tc_readl(&tr->CAM_Data) & 0x0000ffff; |
| 2012 | cam_data |= addr[4] << 24 | (addr[5] << 16); |
| 2013 | tc_writel(cam_data, &tr->CAM_Data); |
| 2014 | } |
| 2015 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2016 | tc_writel(saved_addr, &tr->CAM_Adr); |
| 2017 | } |
| 2018 | |
| 2019 | |
| 2020 | /* |
| 2021 | * Set or clear the multicast filter for this adaptor. |
| 2022 | * num_addrs == -1 Promiscuous mode, receive all packets |
| 2023 | * num_addrs == 0 Normal mode, clear multicast list |
| 2024 | * num_addrs > 0 Multicast mode, receive normal and MC packets, |
| 2025 | * and do best-effort filtering. |
| 2026 | */ |
| 2027 | static void |
| 2028 | tc35815_set_multicast_list(struct net_device *dev) |
| 2029 | { |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 2030 | struct tc35815_regs __iomem *tr = |
| 2031 | (struct tc35815_regs __iomem *)dev->base_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2032 | |
| 2033 | if (dev->flags&IFF_PROMISC) |
| 2034 | { |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 2035 | #ifdef WORKAROUND_100HALF_PROMISC |
| 2036 | /* With some (all?) 100MHalf HUB, controller will hang |
| 2037 | * if we enabled promiscuous mode before linkup... */ |
| 2038 | struct tc35815_local *lp = dev->priv; |
| 2039 | int pid = lp->phy_addr; |
| 2040 | if (!(tc_mdio_read(dev, pid, MII_BMSR) & BMSR_LSTATUS)) |
| 2041 | return; |
| 2042 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2043 | /* Enable promiscuous mode */ |
| 2044 | tc_writel(CAM_CompEn | CAM_BroadAcc | CAM_GroupAcc | CAM_StationAcc, &tr->CAM_Ctl); |
| 2045 | } |
| 2046 | else if((dev->flags&IFF_ALLMULTI) || dev->mc_count > CAM_ENTRY_MAX - 3) |
| 2047 | { |
| 2048 | /* CAM 0, 1, 20 are reserved. */ |
| 2049 | /* Disable promiscuous mode, use normal mode. */ |
| 2050 | tc_writel(CAM_CompEn | CAM_BroadAcc | CAM_GroupAcc, &tr->CAM_Ctl); |
| 2051 | } |
| 2052 | else if(dev->mc_count) |
| 2053 | { |
| 2054 | struct dev_mc_list* cur_addr = dev->mc_list; |
| 2055 | int i; |
| 2056 | int ena_bits = CAM_Ena_Bit(CAM_ENTRY_SOURCE); |
| 2057 | |
| 2058 | tc_writel(0, &tr->CAM_Ctl); |
| 2059 | /* Walk the address list, and load the filter */ |
| 2060 | for (i = 0; i < dev->mc_count; i++, cur_addr = cur_addr->next) { |
| 2061 | if (!cur_addr) |
| 2062 | break; |
| 2063 | /* entry 0,1 is reserved. */ |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 2064 | tc35815_set_cam_entry(dev, i + 2, cur_addr->dmi_addr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2065 | ena_bits |= CAM_Ena_Bit(i + 2); |
| 2066 | } |
| 2067 | tc_writel(ena_bits, &tr->CAM_Ena); |
| 2068 | tc_writel(CAM_CompEn | CAM_BroadAcc, &tr->CAM_Ctl); |
| 2069 | } |
| 2070 | else { |
| 2071 | tc_writel(CAM_Ena_Bit(CAM_ENTRY_SOURCE), &tr->CAM_Ena); |
| 2072 | tc_writel(CAM_CompEn | CAM_BroadAcc, &tr->CAM_Ctl); |
| 2073 | } |
| 2074 | } |
| 2075 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 2076 | static void tc35815_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2077 | { |
| 2078 | struct tc35815_local *lp = dev->priv; |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 2079 | strcpy(info->driver, MODNAME); |
| 2080 | strcpy(info->version, DRV_VERSION); |
| 2081 | strcpy(info->bus_info, pci_name(lp->pci_dev)); |
| 2082 | } |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2083 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 2084 | static int tc35815_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
| 2085 | { |
| 2086 | struct tc35815_local *lp = dev->priv; |
| 2087 | spin_lock_irq(&lp->lock); |
| 2088 | mii_ethtool_gset(&lp->mii, cmd); |
| 2089 | spin_unlock_irq(&lp->lock); |
| 2090 | return 0; |
| 2091 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2092 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 2093 | static int tc35815_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
| 2094 | { |
| 2095 | struct tc35815_local *lp = dev->priv; |
| 2096 | int rc; |
| 2097 | #if 1 /* use our negotiation method... */ |
| 2098 | /* Verify the settings we care about. */ |
| 2099 | if (cmd->autoneg != AUTONEG_ENABLE && |
| 2100 | cmd->autoneg != AUTONEG_DISABLE) |
| 2101 | return -EINVAL; |
| 2102 | if (cmd->autoneg == AUTONEG_DISABLE && |
| 2103 | ((cmd->speed != SPEED_100 && |
| 2104 | cmd->speed != SPEED_10) || |
| 2105 | (cmd->duplex != DUPLEX_HALF && |
| 2106 | cmd->duplex != DUPLEX_FULL))) |
| 2107 | return -EINVAL; |
| 2108 | |
| 2109 | /* Ok, do it to it. */ |
| 2110 | spin_lock_irq(&lp->lock); |
| 2111 | del_timer(&lp->timer); |
| 2112 | tc35815_start_auto_negotiation(dev, cmd); |
| 2113 | spin_unlock_irq(&lp->lock); |
| 2114 | rc = 0; |
| 2115 | #else |
| 2116 | spin_lock_irq(&lp->lock); |
| 2117 | rc = mii_ethtool_sset(&lp->mii, cmd); |
| 2118 | spin_unlock_irq(&lp->lock); |
| 2119 | #endif |
| 2120 | return rc; |
| 2121 | } |
| 2122 | |
| 2123 | static int tc35815_nway_reset(struct net_device *dev) |
| 2124 | { |
| 2125 | struct tc35815_local *lp = dev->priv; |
| 2126 | int rc; |
| 2127 | spin_lock_irq(&lp->lock); |
| 2128 | rc = mii_nway_restart(&lp->mii); |
| 2129 | spin_unlock_irq(&lp->lock); |
| 2130 | return rc; |
| 2131 | } |
| 2132 | |
| 2133 | static u32 tc35815_get_link(struct net_device *dev) |
| 2134 | { |
| 2135 | struct tc35815_local *lp = dev->priv; |
| 2136 | int rc; |
| 2137 | spin_lock_irq(&lp->lock); |
| 2138 | rc = mii_link_ok(&lp->mii); |
| 2139 | spin_unlock_irq(&lp->lock); |
| 2140 | return rc; |
| 2141 | } |
| 2142 | |
| 2143 | static u32 tc35815_get_msglevel(struct net_device *dev) |
| 2144 | { |
| 2145 | struct tc35815_local *lp = dev->priv; |
| 2146 | return lp->msg_enable; |
| 2147 | } |
| 2148 | |
| 2149 | static void tc35815_set_msglevel(struct net_device *dev, u32 datum) |
| 2150 | { |
| 2151 | struct tc35815_local *lp = dev->priv; |
| 2152 | lp->msg_enable = datum; |
| 2153 | } |
| 2154 | |
| 2155 | static int tc35815_get_stats_count(struct net_device *dev) |
| 2156 | { |
| 2157 | struct tc35815_local *lp = dev->priv; |
| 2158 | return sizeof(lp->lstats) / sizeof(int); |
| 2159 | } |
| 2160 | |
| 2161 | static void tc35815_get_ethtool_stats(struct net_device *dev, struct ethtool_stats *stats, u64 *data) |
| 2162 | { |
| 2163 | struct tc35815_local *lp = dev->priv; |
| 2164 | data[0] = lp->lstats.max_tx_qlen; |
| 2165 | data[1] = lp->lstats.tx_ints; |
| 2166 | data[2] = lp->lstats.rx_ints; |
| 2167 | data[3] = lp->lstats.tx_underrun; |
| 2168 | } |
| 2169 | |
| 2170 | static struct { |
| 2171 | const char str[ETH_GSTRING_LEN]; |
| 2172 | } ethtool_stats_keys[] = { |
| 2173 | { "max_tx_qlen" }, |
| 2174 | { "tx_ints" }, |
| 2175 | { "rx_ints" }, |
| 2176 | { "tx_underrun" }, |
| 2177 | }; |
| 2178 | |
| 2179 | static void tc35815_get_strings(struct net_device *dev, u32 stringset, u8 *data) |
| 2180 | { |
| 2181 | memcpy(data, ethtool_stats_keys, sizeof(ethtool_stats_keys)); |
| 2182 | } |
| 2183 | |
| 2184 | static const struct ethtool_ops tc35815_ethtool_ops = { |
| 2185 | .get_drvinfo = tc35815_get_drvinfo, |
| 2186 | .get_settings = tc35815_get_settings, |
| 2187 | .set_settings = tc35815_set_settings, |
| 2188 | .nway_reset = tc35815_nway_reset, |
| 2189 | .get_link = tc35815_get_link, |
| 2190 | .get_msglevel = tc35815_get_msglevel, |
| 2191 | .set_msglevel = tc35815_set_msglevel, |
| 2192 | .get_strings = tc35815_get_strings, |
| 2193 | .get_stats_count = tc35815_get_stats_count, |
| 2194 | .get_ethtool_stats = tc35815_get_ethtool_stats, |
| 2195 | .get_perm_addr = ethtool_op_get_perm_addr, |
| 2196 | }; |
| 2197 | |
| 2198 | static int tc35815_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) |
| 2199 | { |
| 2200 | struct tc35815_local *lp = dev->priv; |
| 2201 | int rc; |
| 2202 | |
| 2203 | if (!netif_running(dev)) |
| 2204 | return -EINVAL; |
| 2205 | |
| 2206 | spin_lock_irq(&lp->lock); |
| 2207 | rc = generic_mii_ioctl(&lp->mii, if_mii(rq), cmd, NULL); |
| 2208 | spin_unlock_irq(&lp->lock); |
| 2209 | |
| 2210 | return rc; |
| 2211 | } |
| 2212 | |
| 2213 | static int tc_mdio_read(struct net_device *dev, int phy_id, int location) |
| 2214 | { |
| 2215 | struct tc35815_regs __iomem *tr = |
| 2216 | (struct tc35815_regs __iomem *)dev->base_addr; |
| 2217 | u32 data; |
| 2218 | tc_writel(MD_CA_Busy | (phy_id << 5) | location, &tr->MD_CA); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2219 | while (tc_readl(&tr->MD_CA) & MD_CA_Busy) |
| 2220 | ; |
| 2221 | data = tc_readl(&tr->MD_Data); |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 2222 | return data & 0xffff; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2223 | } |
| 2224 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 2225 | static void tc_mdio_write(struct net_device *dev, int phy_id, int location, |
| 2226 | int val) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2227 | { |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 2228 | struct tc35815_regs __iomem *tr = |
| 2229 | (struct tc35815_regs __iomem *)dev->base_addr; |
| 2230 | tc_writel(val, &tr->MD_Data); |
| 2231 | tc_writel(MD_CA_Busy | MD_CA_Wr | (phy_id << 5) | location, &tr->MD_CA); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2232 | while (tc_readl(&tr->MD_CA) & MD_CA_Busy) |
| 2233 | ; |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 2234 | } |
| 2235 | |
| 2236 | /* Auto negotiation. The scheme is very simple. We have a timer routine |
| 2237 | * that keeps watching the auto negotiation process as it progresses. |
| 2238 | * The DP83840 is first told to start doing it's thing, we set up the time |
| 2239 | * and place the timer state machine in it's initial state. |
| 2240 | * |
| 2241 | * Here the timer peeks at the DP83840 status registers at each click to see |
| 2242 | * if the auto negotiation has completed, we assume here that the DP83840 PHY |
| 2243 | * will time out at some point and just tell us what (didn't) happen. For |
| 2244 | * complete coverage we only allow so many of the ticks at this level to run, |
| 2245 | * when this has expired we print a warning message and try another strategy. |
| 2246 | * This "other" strategy is to force the interface into various speed/duplex |
| 2247 | * configurations and we stop when we see a link-up condition before the |
| 2248 | * maximum number of "peek" ticks have occurred. |
| 2249 | * |
| 2250 | * Once a valid link status has been detected we configure the BigMAC and |
| 2251 | * the rest of the Happy Meal to speak the most efficient protocol we could |
| 2252 | * get a clean link for. The priority for link configurations, highest first |
| 2253 | * is: |
| 2254 | * 100 Base-T Full Duplex |
| 2255 | * 100 Base-T Half Duplex |
| 2256 | * 10 Base-T Full Duplex |
| 2257 | * 10 Base-T Half Duplex |
| 2258 | * |
| 2259 | * We start a new timer now, after a successful auto negotiation status has |
| 2260 | * been detected. This timer just waits for the link-up bit to get set in |
| 2261 | * the BMCR of the DP83840. When this occurs we print a kernel log message |
| 2262 | * describing the link type in use and the fact that it is up. |
| 2263 | * |
| 2264 | * If a fatal error of some sort is signalled and detected in the interrupt |
| 2265 | * service routine, and the chip is reset, or the link is ifconfig'd down |
| 2266 | * and then back up, this entire process repeats itself all over again. |
| 2267 | */ |
| 2268 | /* Note: Above comments are come from sunhme driver. */ |
| 2269 | |
| 2270 | static int tc35815_try_next_permutation(struct net_device *dev) |
| 2271 | { |
| 2272 | struct tc35815_local *lp = dev->priv; |
| 2273 | int pid = lp->phy_addr; |
| 2274 | unsigned short bmcr; |
| 2275 | |
| 2276 | bmcr = tc_mdio_read(dev, pid, MII_BMCR); |
| 2277 | |
| 2278 | /* Downgrade from full to half duplex. Only possible via ethtool. */ |
| 2279 | if (bmcr & BMCR_FULLDPLX) { |
| 2280 | bmcr &= ~BMCR_FULLDPLX; |
| 2281 | printk(KERN_DEBUG "%s: try next permutation (BMCR %x)\n", dev->name, bmcr); |
| 2282 | tc_mdio_write(dev, pid, MII_BMCR, bmcr); |
| 2283 | return 0; |
| 2284 | } |
| 2285 | |
| 2286 | /* Downgrade from 100 to 10. */ |
| 2287 | if (bmcr & BMCR_SPEED100) { |
| 2288 | bmcr &= ~BMCR_SPEED100; |
| 2289 | printk(KERN_DEBUG "%s: try next permutation (BMCR %x)\n", dev->name, bmcr); |
| 2290 | tc_mdio_write(dev, pid, MII_BMCR, bmcr); |
| 2291 | return 0; |
| 2292 | } |
| 2293 | |
| 2294 | /* We've tried everything. */ |
| 2295 | return -1; |
| 2296 | } |
| 2297 | |
| 2298 | static void |
| 2299 | tc35815_display_link_mode(struct net_device *dev) |
| 2300 | { |
| 2301 | struct tc35815_local *lp = dev->priv; |
| 2302 | int pid = lp->phy_addr; |
| 2303 | unsigned short lpa, bmcr; |
| 2304 | char *speed = "", *duplex = ""; |
| 2305 | |
| 2306 | lpa = tc_mdio_read(dev, pid, MII_LPA); |
| 2307 | bmcr = tc_mdio_read(dev, pid, MII_BMCR); |
| 2308 | if (options.speed ? (bmcr & BMCR_SPEED100) : (lpa & (LPA_100HALF | LPA_100FULL))) |
| 2309 | speed = "100Mb/s"; |
| 2310 | else |
| 2311 | speed = "10Mb/s"; |
| 2312 | if (options.duplex ? (bmcr & BMCR_FULLDPLX) : (lpa & (LPA_100FULL | LPA_10FULL))) |
| 2313 | duplex = "Full Duplex"; |
| 2314 | else |
| 2315 | duplex = "Half Duplex"; |
| 2316 | |
| 2317 | if (netif_msg_link(lp)) |
| 2318 | printk(KERN_INFO "%s: Link is up at %s, %s.\n", |
| 2319 | dev->name, speed, duplex); |
| 2320 | printk(KERN_DEBUG "%s: MII BMCR %04x BMSR %04x LPA %04x\n", |
| 2321 | dev->name, |
| 2322 | bmcr, tc_mdio_read(dev, pid, MII_BMSR), lpa); |
| 2323 | } |
| 2324 | |
| 2325 | static void tc35815_display_forced_link_mode(struct net_device *dev) |
| 2326 | { |
| 2327 | struct tc35815_local *lp = dev->priv; |
| 2328 | int pid = lp->phy_addr; |
| 2329 | unsigned short bmcr; |
| 2330 | char *speed = "", *duplex = ""; |
| 2331 | |
| 2332 | bmcr = tc_mdio_read(dev, pid, MII_BMCR); |
| 2333 | if (bmcr & BMCR_SPEED100) |
| 2334 | speed = "100Mb/s"; |
| 2335 | else |
| 2336 | speed = "10Mb/s"; |
| 2337 | if (bmcr & BMCR_FULLDPLX) |
| 2338 | duplex = "Full Duplex.\n"; |
| 2339 | else |
| 2340 | duplex = "Half Duplex.\n"; |
| 2341 | |
| 2342 | if (netif_msg_link(lp)) |
| 2343 | printk(KERN_INFO "%s: Link has been forced up at %s, %s", |
| 2344 | dev->name, speed, duplex); |
| 2345 | } |
| 2346 | |
| 2347 | static void tc35815_set_link_modes(struct net_device *dev) |
| 2348 | { |
| 2349 | struct tc35815_local *lp = dev->priv; |
| 2350 | struct tc35815_regs __iomem *tr = |
| 2351 | (struct tc35815_regs __iomem *)dev->base_addr; |
| 2352 | int pid = lp->phy_addr; |
| 2353 | unsigned short bmcr, lpa; |
| 2354 | int speed; |
| 2355 | |
| 2356 | if (lp->timer_state == arbwait) { |
| 2357 | lpa = tc_mdio_read(dev, pid, MII_LPA); |
| 2358 | bmcr = tc_mdio_read(dev, pid, MII_BMCR); |
| 2359 | printk(KERN_DEBUG "%s: MII BMCR %04x BMSR %04x LPA %04x\n", |
| 2360 | dev->name, |
| 2361 | bmcr, tc_mdio_read(dev, pid, MII_BMSR), lpa); |
| 2362 | if (!(lpa & (LPA_10HALF | LPA_10FULL | |
| 2363 | LPA_100HALF | LPA_100FULL))) { |
| 2364 | /* fall back to 10HALF */ |
| 2365 | printk(KERN_INFO "%s: bad ability %04x - falling back to 10HD.\n", |
| 2366 | dev->name, lpa); |
| 2367 | lpa = LPA_10HALF; |
| 2368 | } |
| 2369 | if (options.duplex ? (bmcr & BMCR_FULLDPLX) : (lpa & (LPA_100FULL | LPA_10FULL))) |
| 2370 | lp->fullduplex = 1; |
| 2371 | else |
| 2372 | lp->fullduplex = 0; |
| 2373 | if (options.speed ? (bmcr & BMCR_SPEED100) : (lpa & (LPA_100HALF | LPA_100FULL))) |
| 2374 | speed = 100; |
| 2375 | else |
| 2376 | speed = 10; |
| 2377 | } else { |
| 2378 | /* Forcing a link mode. */ |
| 2379 | bmcr = tc_mdio_read(dev, pid, MII_BMCR); |
| 2380 | if (bmcr & BMCR_FULLDPLX) |
| 2381 | lp->fullduplex = 1; |
| 2382 | else |
| 2383 | lp->fullduplex = 0; |
| 2384 | if (bmcr & BMCR_SPEED100) |
| 2385 | speed = 100; |
| 2386 | else |
| 2387 | speed = 10; |
| 2388 | } |
| 2389 | |
| 2390 | tc_writel(tc_readl(&tr->MAC_Ctl) | MAC_HaltReq, &tr->MAC_Ctl); |
| 2391 | if (lp->fullduplex) { |
| 2392 | tc_writel(tc_readl(&tr->MAC_Ctl) | MAC_FullDup, &tr->MAC_Ctl); |
| 2393 | } else { |
| 2394 | tc_writel(tc_readl(&tr->MAC_Ctl) & ~MAC_FullDup, &tr->MAC_Ctl); |
| 2395 | } |
| 2396 | tc_writel(tc_readl(&tr->MAC_Ctl) & ~MAC_HaltReq, &tr->MAC_Ctl); |
| 2397 | |
| 2398 | /* TX4939 PCFG.SPEEDn bit will be changed on NETDEV_CHANGE event. */ |
| 2399 | |
| 2400 | #ifndef NO_CHECK_CARRIER |
| 2401 | /* TX4939 does not have EnLCarr */ |
| 2402 | if (lp->boardtype != TC35815_TX4939) { |
| 2403 | #ifdef WORKAROUND_LOSTCAR |
| 2404 | /* WORKAROUND: enable LostCrS only if half duplex operation */ |
| 2405 | if (!lp->fullduplex && lp->boardtype != TC35815_TX4939) |
| 2406 | tc_writel(tc_readl(&tr->Tx_Ctl) | Tx_EnLCarr, &tr->Tx_Ctl); |
| 2407 | #endif |
| 2408 | } |
| 2409 | #endif |
| 2410 | lp->mii.full_duplex = lp->fullduplex; |
| 2411 | } |
| 2412 | |
| 2413 | static void tc35815_timer(unsigned long data) |
| 2414 | { |
| 2415 | struct net_device *dev = (struct net_device *)data; |
| 2416 | struct tc35815_local *lp = dev->priv; |
| 2417 | int pid = lp->phy_addr; |
| 2418 | unsigned short bmsr, bmcr, lpa; |
| 2419 | int restart_timer = 0; |
| 2420 | |
| 2421 | spin_lock_irq(&lp->lock); |
| 2422 | |
| 2423 | lp->timer_ticks++; |
| 2424 | switch (lp->timer_state) { |
| 2425 | case arbwait: |
| 2426 | /* |
| 2427 | * Only allow for 5 ticks, thats 10 seconds and much too |
| 2428 | * long to wait for arbitration to complete. |
| 2429 | */ |
| 2430 | /* TC35815 need more times... */ |
| 2431 | if (lp->timer_ticks >= 10) { |
| 2432 | /* Enter force mode. */ |
| 2433 | if (!options.doforce) { |
| 2434 | printk(KERN_NOTICE "%s: Auto-Negotiation unsuccessful," |
| 2435 | " cable probblem?\n", dev->name); |
| 2436 | /* Try to restart the adaptor. */ |
| 2437 | tc35815_restart(dev); |
| 2438 | goto out; |
| 2439 | } |
| 2440 | printk(KERN_NOTICE "%s: Auto-Negotiation unsuccessful," |
| 2441 | " trying force link mode\n", dev->name); |
| 2442 | printk(KERN_DEBUG "%s: BMCR %x BMSR %x\n", dev->name, |
| 2443 | tc_mdio_read(dev, pid, MII_BMCR), |
| 2444 | tc_mdio_read(dev, pid, MII_BMSR)); |
| 2445 | bmcr = BMCR_SPEED100; |
| 2446 | tc_mdio_write(dev, pid, MII_BMCR, bmcr); |
| 2447 | |
| 2448 | /* |
| 2449 | * OK, seems we need do disable the transceiver |
| 2450 | * for the first tick to make sure we get an |
| 2451 | * accurate link state at the second tick. |
| 2452 | */ |
| 2453 | |
| 2454 | lp->timer_state = ltrywait; |
| 2455 | lp->timer_ticks = 0; |
| 2456 | restart_timer = 1; |
| 2457 | } else { |
| 2458 | /* Anything interesting happen? */ |
| 2459 | bmsr = tc_mdio_read(dev, pid, MII_BMSR); |
| 2460 | if (bmsr & BMSR_ANEGCOMPLETE) { |
| 2461 | /* Just what we've been waiting for... */ |
| 2462 | tc35815_set_link_modes(dev); |
| 2463 | |
| 2464 | /* |
| 2465 | * Success, at least so far, advance our state |
| 2466 | * engine. |
| 2467 | */ |
| 2468 | lp->timer_state = lupwait; |
| 2469 | restart_timer = 1; |
| 2470 | } else { |
| 2471 | restart_timer = 1; |
| 2472 | } |
| 2473 | } |
| 2474 | break; |
| 2475 | |
| 2476 | case lupwait: |
| 2477 | /* |
| 2478 | * Auto negotiation was successful and we are awaiting a |
| 2479 | * link up status. I have decided to let this timer run |
| 2480 | * forever until some sort of error is signalled, reporting |
| 2481 | * a message to the user at 10 second intervals. |
| 2482 | */ |
| 2483 | bmsr = tc_mdio_read(dev, pid, MII_BMSR); |
| 2484 | if (bmsr & BMSR_LSTATUS) { |
| 2485 | /* |
| 2486 | * Wheee, it's up, display the link mode in use and put |
| 2487 | * the timer to sleep. |
| 2488 | */ |
| 2489 | tc35815_display_link_mode(dev); |
| 2490 | netif_carrier_on(dev); |
| 2491 | #ifdef WORKAROUND_100HALF_PROMISC |
| 2492 | /* delayed promiscuous enabling */ |
| 2493 | if (dev->flags & IFF_PROMISC) |
| 2494 | tc35815_set_multicast_list(dev); |
| 2495 | #endif |
| 2496 | #if 1 |
| 2497 | lp->saved_lpa = tc_mdio_read(dev, pid, MII_LPA); |
| 2498 | lp->timer_state = lcheck; |
| 2499 | restart_timer = 1; |
| 2500 | #else |
| 2501 | lp->timer_state = asleep; |
| 2502 | restart_timer = 0; |
| 2503 | #endif |
| 2504 | } else { |
| 2505 | if (lp->timer_ticks >= 10) { |
| 2506 | printk(KERN_NOTICE "%s: Auto negotiation successful, link still " |
| 2507 | "not completely up.\n", dev->name); |
| 2508 | lp->timer_ticks = 0; |
| 2509 | restart_timer = 1; |
| 2510 | } else { |
| 2511 | restart_timer = 1; |
| 2512 | } |
| 2513 | } |
| 2514 | break; |
| 2515 | |
| 2516 | case ltrywait: |
| 2517 | /* |
| 2518 | * Making the timeout here too long can make it take |
| 2519 | * annoyingly long to attempt all of the link mode |
| 2520 | * permutations, but then again this is essentially |
| 2521 | * error recovery code for the most part. |
| 2522 | */ |
| 2523 | bmsr = tc_mdio_read(dev, pid, MII_BMSR); |
| 2524 | bmcr = tc_mdio_read(dev, pid, MII_BMCR); |
| 2525 | if (lp->timer_ticks == 1) { |
| 2526 | /* |
| 2527 | * Re-enable transceiver, we'll re-enable the |
| 2528 | * transceiver next tick, then check link state |
| 2529 | * on the following tick. |
| 2530 | */ |
| 2531 | restart_timer = 1; |
| 2532 | break; |
| 2533 | } |
| 2534 | if (lp->timer_ticks == 2) { |
| 2535 | restart_timer = 1; |
| 2536 | break; |
| 2537 | } |
| 2538 | if (bmsr & BMSR_LSTATUS) { |
| 2539 | /* Force mode selection success. */ |
| 2540 | tc35815_display_forced_link_mode(dev); |
| 2541 | netif_carrier_on(dev); |
| 2542 | tc35815_set_link_modes(dev); |
| 2543 | #ifdef WORKAROUND_100HALF_PROMISC |
| 2544 | /* delayed promiscuous enabling */ |
| 2545 | if (dev->flags & IFF_PROMISC) |
| 2546 | tc35815_set_multicast_list(dev); |
| 2547 | #endif |
| 2548 | #if 1 |
| 2549 | lp->saved_lpa = tc_mdio_read(dev, pid, MII_LPA); |
| 2550 | lp->timer_state = lcheck; |
| 2551 | restart_timer = 1; |
| 2552 | #else |
| 2553 | lp->timer_state = asleep; |
| 2554 | restart_timer = 0; |
| 2555 | #endif |
| 2556 | } else { |
| 2557 | if (lp->timer_ticks >= 4) { /* 6 seconds or so... */ |
| 2558 | int ret; |
| 2559 | |
| 2560 | ret = tc35815_try_next_permutation(dev); |
| 2561 | if (ret == -1) { |
| 2562 | /* |
| 2563 | * Aieee, tried them all, reset the |
| 2564 | * chip and try all over again. |
| 2565 | */ |
| 2566 | printk(KERN_NOTICE "%s: Link down, " |
| 2567 | "cable problem?\n", |
| 2568 | dev->name); |
| 2569 | |
| 2570 | /* Try to restart the adaptor. */ |
| 2571 | tc35815_restart(dev); |
| 2572 | goto out; |
| 2573 | } |
| 2574 | lp->timer_ticks = 0; |
| 2575 | restart_timer = 1; |
| 2576 | } else { |
| 2577 | restart_timer = 1; |
| 2578 | } |
| 2579 | } |
| 2580 | break; |
| 2581 | |
| 2582 | case lcheck: |
| 2583 | bmcr = tc_mdio_read(dev, pid, MII_BMCR); |
| 2584 | lpa = tc_mdio_read(dev, pid, MII_LPA); |
| 2585 | if (bmcr & (BMCR_PDOWN | BMCR_ISOLATE | BMCR_RESET)) { |
| 2586 | printk(KERN_ERR "%s: PHY down? (BMCR %x)\n", dev->name, |
| 2587 | bmcr); |
| 2588 | } else if ((lp->saved_lpa ^ lpa) & |
| 2589 | (LPA_100FULL|LPA_100HALF|LPA_10FULL|LPA_10HALF)) { |
| 2590 | printk(KERN_NOTICE "%s: link status changed" |
| 2591 | " (BMCR %x LPA %x->%x)\n", dev->name, |
| 2592 | bmcr, lp->saved_lpa, lpa); |
| 2593 | } else { |
| 2594 | /* go on */ |
| 2595 | restart_timer = 1; |
| 2596 | break; |
| 2597 | } |
| 2598 | /* Try to restart the adaptor. */ |
| 2599 | tc35815_restart(dev); |
| 2600 | goto out; |
| 2601 | |
| 2602 | case asleep: |
| 2603 | default: |
| 2604 | /* Can't happens.... */ |
| 2605 | printk(KERN_ERR "%s: Aieee, link timer is asleep but we got " |
| 2606 | "one anyways!\n", dev->name); |
| 2607 | restart_timer = 0; |
| 2608 | lp->timer_ticks = 0; |
| 2609 | lp->timer_state = asleep; /* foo on you */ |
| 2610 | break; |
| 2611 | } |
| 2612 | |
| 2613 | if (restart_timer) { |
| 2614 | lp->timer.expires = jiffies + msecs_to_jiffies(1200); |
| 2615 | add_timer(&lp->timer); |
| 2616 | } |
| 2617 | out: |
| 2618 | spin_unlock_irq(&lp->lock); |
| 2619 | } |
| 2620 | |
| 2621 | static void tc35815_start_auto_negotiation(struct net_device *dev, |
| 2622 | struct ethtool_cmd *ep) |
| 2623 | { |
| 2624 | struct tc35815_local *lp = dev->priv; |
| 2625 | int pid = lp->phy_addr; |
| 2626 | unsigned short bmsr, bmcr, advertize; |
| 2627 | int timeout; |
| 2628 | |
| 2629 | netif_carrier_off(dev); |
| 2630 | bmsr = tc_mdio_read(dev, pid, MII_BMSR); |
| 2631 | bmcr = tc_mdio_read(dev, pid, MII_BMCR); |
| 2632 | advertize = tc_mdio_read(dev, pid, MII_ADVERTISE); |
| 2633 | |
| 2634 | if (ep == NULL || ep->autoneg == AUTONEG_ENABLE) { |
| 2635 | if (options.speed || options.duplex) { |
| 2636 | /* Advertise only specified configuration. */ |
| 2637 | advertize &= ~(ADVERTISE_10HALF | |
| 2638 | ADVERTISE_10FULL | |
| 2639 | ADVERTISE_100HALF | |
| 2640 | ADVERTISE_100FULL); |
| 2641 | if (options.speed != 10) { |
| 2642 | if (options.duplex != 1) |
| 2643 | advertize |= ADVERTISE_100FULL; |
| 2644 | if (options.duplex != 2) |
| 2645 | advertize |= ADVERTISE_100HALF; |
| 2646 | } |
| 2647 | if (options.speed != 100) { |
| 2648 | if (options.duplex != 1) |
| 2649 | advertize |= ADVERTISE_10FULL; |
| 2650 | if (options.duplex != 2) |
| 2651 | advertize |= ADVERTISE_10HALF; |
| 2652 | } |
| 2653 | if (options.speed == 100) |
| 2654 | bmcr |= BMCR_SPEED100; |
| 2655 | else if (options.speed == 10) |
| 2656 | bmcr &= ~BMCR_SPEED100; |
| 2657 | if (options.duplex == 2) |
| 2658 | bmcr |= BMCR_FULLDPLX; |
| 2659 | else if (options.duplex == 1) |
| 2660 | bmcr &= ~BMCR_FULLDPLX; |
| 2661 | } else { |
| 2662 | /* Advertise everything we can support. */ |
| 2663 | if (bmsr & BMSR_10HALF) |
| 2664 | advertize |= ADVERTISE_10HALF; |
| 2665 | else |
| 2666 | advertize &= ~ADVERTISE_10HALF; |
| 2667 | if (bmsr & BMSR_10FULL) |
| 2668 | advertize |= ADVERTISE_10FULL; |
| 2669 | else |
| 2670 | advertize &= ~ADVERTISE_10FULL; |
| 2671 | if (bmsr & BMSR_100HALF) |
| 2672 | advertize |= ADVERTISE_100HALF; |
| 2673 | else |
| 2674 | advertize &= ~ADVERTISE_100HALF; |
| 2675 | if (bmsr & BMSR_100FULL) |
| 2676 | advertize |= ADVERTISE_100FULL; |
| 2677 | else |
| 2678 | advertize &= ~ADVERTISE_100FULL; |
| 2679 | } |
| 2680 | |
| 2681 | tc_mdio_write(dev, pid, MII_ADVERTISE, advertize); |
| 2682 | |
| 2683 | /* Enable Auto-Negotiation, this is usually on already... */ |
| 2684 | bmcr |= BMCR_ANENABLE; |
| 2685 | tc_mdio_write(dev, pid, MII_BMCR, bmcr); |
| 2686 | |
| 2687 | /* Restart it to make sure it is going. */ |
| 2688 | bmcr |= BMCR_ANRESTART; |
| 2689 | tc_mdio_write(dev, pid, MII_BMCR, bmcr); |
| 2690 | printk(KERN_DEBUG "%s: ADVERTISE %x BMCR %x\n", dev->name, advertize, bmcr); |
| 2691 | |
| 2692 | /* BMCR_ANRESTART self clears when the process has begun. */ |
| 2693 | timeout = 64; /* More than enough. */ |
| 2694 | while (--timeout) { |
| 2695 | bmcr = tc_mdio_read(dev, pid, MII_BMCR); |
| 2696 | if (!(bmcr & BMCR_ANRESTART)) |
| 2697 | break; /* got it. */ |
| 2698 | udelay(10); |
| 2699 | } |
| 2700 | if (!timeout) { |
| 2701 | printk(KERN_ERR "%s: TC35815 would not start auto " |
| 2702 | "negotiation BMCR=0x%04x\n", |
| 2703 | dev->name, bmcr); |
| 2704 | printk(KERN_NOTICE "%s: Performing force link " |
| 2705 | "detection.\n", dev->name); |
| 2706 | goto force_link; |
| 2707 | } else { |
| 2708 | printk(KERN_DEBUG "%s: auto negotiation started.\n", dev->name); |
| 2709 | lp->timer_state = arbwait; |
| 2710 | } |
| 2711 | } else { |
| 2712 | force_link: |
| 2713 | /* Force the link up, trying first a particular mode. |
| 2714 | * Either we are here at the request of ethtool or |
| 2715 | * because the Happy Meal would not start to autoneg. |
| 2716 | */ |
| 2717 | |
| 2718 | /* Disable auto-negotiation in BMCR, enable the duplex and |
| 2719 | * speed setting, init the timer state machine, and fire it off. |
| 2720 | */ |
| 2721 | if (ep == NULL || ep->autoneg == AUTONEG_ENABLE) { |
| 2722 | bmcr = BMCR_SPEED100; |
| 2723 | } else { |
| 2724 | if (ep->speed == SPEED_100) |
| 2725 | bmcr = BMCR_SPEED100; |
| 2726 | else |
| 2727 | bmcr = 0; |
| 2728 | if (ep->duplex == DUPLEX_FULL) |
| 2729 | bmcr |= BMCR_FULLDPLX; |
| 2730 | } |
| 2731 | tc_mdio_write(dev, pid, MII_BMCR, bmcr); |
| 2732 | |
| 2733 | /* OK, seems we need do disable the transceiver for the first |
| 2734 | * tick to make sure we get an accurate link state at the |
| 2735 | * second tick. |
| 2736 | */ |
| 2737 | lp->timer_state = ltrywait; |
| 2738 | } |
| 2739 | |
| 2740 | del_timer(&lp->timer); |
| 2741 | lp->timer_ticks = 0; |
| 2742 | lp->timer.expires = jiffies + msecs_to_jiffies(1200); |
| 2743 | add_timer(&lp->timer); |
| 2744 | } |
| 2745 | |
| 2746 | static void tc35815_find_phy(struct net_device *dev) |
| 2747 | { |
| 2748 | struct tc35815_local *lp = dev->priv; |
| 2749 | int pid = lp->phy_addr; |
| 2750 | unsigned short id0; |
| 2751 | |
| 2752 | /* find MII phy */ |
| 2753 | for (pid = 31; pid >= 0; pid--) { |
| 2754 | id0 = tc_mdio_read(dev, pid, MII_BMSR); |
| 2755 | if (id0 != 0xffff && id0 != 0x0000 && |
| 2756 | (id0 & BMSR_RESV) != (0xffff & BMSR_RESV) /* paranoia? */ |
| 2757 | ) { |
| 2758 | lp->phy_addr = pid; |
| 2759 | break; |
| 2760 | } |
| 2761 | } |
| 2762 | if (pid < 0) { |
| 2763 | printk(KERN_ERR "%s: No MII Phy found.\n", |
| 2764 | dev->name); |
| 2765 | lp->phy_addr = pid = 0; |
| 2766 | } |
| 2767 | |
| 2768 | lp->mii_id[0] = tc_mdio_read(dev, pid, MII_PHYSID1); |
| 2769 | lp->mii_id[1] = tc_mdio_read(dev, pid, MII_PHYSID2); |
| 2770 | if (netif_msg_hw(lp)) |
| 2771 | printk(KERN_INFO "%s: PHY(%02x) ID %04x %04x\n", dev->name, |
| 2772 | pid, lp->mii_id[0], lp->mii_id[1]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2773 | } |
| 2774 | |
| 2775 | static void tc35815_phy_chip_init(struct net_device *dev) |
| 2776 | { |
| 2777 | struct tc35815_local *lp = dev->priv; |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 2778 | int pid = lp->phy_addr; |
| 2779 | unsigned short bmcr; |
| 2780 | struct ethtool_cmd ecmd, *ep; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2781 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 2782 | /* dis-isolate if needed. */ |
| 2783 | bmcr = tc_mdio_read(dev, pid, MII_BMCR); |
| 2784 | if (bmcr & BMCR_ISOLATE) { |
| 2785 | int count = 32; |
| 2786 | printk(KERN_DEBUG "%s: unisolating...", dev->name); |
| 2787 | tc_mdio_write(dev, pid, MII_BMCR, bmcr & ~BMCR_ISOLATE); |
| 2788 | while (--count) { |
| 2789 | if (!(tc_mdio_read(dev, pid, MII_BMCR) & BMCR_ISOLATE)) |
| 2790 | break; |
| 2791 | udelay(20); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2792 | } |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 2793 | printk(" %s.\n", count ? "done" : "failed"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2794 | } |
| 2795 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 2796 | if (options.speed && options.duplex) { |
| 2797 | ecmd.autoneg = AUTONEG_DISABLE; |
| 2798 | ecmd.speed = options.speed == 10 ? SPEED_10 : SPEED_100; |
| 2799 | ecmd.duplex = options.duplex == 1 ? DUPLEX_HALF : DUPLEX_FULL; |
| 2800 | ep = &ecmd; |
| 2801 | } else { |
| 2802 | ep = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2803 | } |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 2804 | tc35815_start_auto_negotiation(dev, ep); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2805 | } |
| 2806 | |
| 2807 | static void tc35815_chip_reset(struct net_device *dev) |
| 2808 | { |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 2809 | struct tc35815_regs __iomem *tr = |
| 2810 | (struct tc35815_regs __iomem *)dev->base_addr; |
| 2811 | int i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2812 | /* reset the controller */ |
| 2813 | tc_writel(MAC_Reset, &tr->MAC_Ctl); |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 2814 | udelay(4); /* 3200ns */ |
| 2815 | i = 0; |
| 2816 | while (tc_readl(&tr->MAC_Ctl) & MAC_Reset) { |
| 2817 | if (i++ > 100) { |
| 2818 | printk(KERN_ERR "%s: MAC reset failed.\n", dev->name); |
| 2819 | break; |
| 2820 | } |
| 2821 | mdelay(1); |
| 2822 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2823 | tc_writel(0, &tr->MAC_Ctl); |
| 2824 | |
| 2825 | /* initialize registers to default value */ |
| 2826 | tc_writel(0, &tr->DMA_Ctl); |
| 2827 | tc_writel(0, &tr->TxThrsh); |
| 2828 | tc_writel(0, &tr->TxPollCtr); |
| 2829 | tc_writel(0, &tr->RxFragSize); |
| 2830 | tc_writel(0, &tr->Int_En); |
| 2831 | tc_writel(0, &tr->FDA_Bas); |
| 2832 | tc_writel(0, &tr->FDA_Lim); |
| 2833 | tc_writel(0xffffffff, &tr->Int_Src); /* Write 1 to clear */ |
| 2834 | tc_writel(0, &tr->CAM_Ctl); |
| 2835 | tc_writel(0, &tr->Tx_Ctl); |
| 2836 | tc_writel(0, &tr->Rx_Ctl); |
| 2837 | tc_writel(0, &tr->CAM_Ena); |
| 2838 | (void)tc_readl(&tr->Miss_Cnt); /* Read to clear */ |
| 2839 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 2840 | /* initialize internal SRAM */ |
| 2841 | tc_writel(DMA_TestMode, &tr->DMA_Ctl); |
| 2842 | for (i = 0; i < 0x1000; i += 4) { |
| 2843 | tc_writel(i, &tr->CAM_Adr); |
| 2844 | tc_writel(0, &tr->CAM_Data); |
| 2845 | } |
| 2846 | tc_writel(0, &tr->DMA_Ctl); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2847 | } |
| 2848 | |
| 2849 | static void tc35815_chip_init(struct net_device *dev) |
| 2850 | { |
| 2851 | struct tc35815_local *lp = dev->priv; |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 2852 | struct tc35815_regs __iomem *tr = |
| 2853 | (struct tc35815_regs __iomem *)dev->base_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2854 | unsigned long txctl = TX_CTL_CMD; |
| 2855 | |
| 2856 | tc35815_phy_chip_init(dev); |
| 2857 | |
| 2858 | /* load station address to CAM */ |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 2859 | tc35815_set_cam_entry(dev, CAM_ENTRY_SOURCE, dev->dev_addr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2860 | |
| 2861 | /* Enable CAM (broadcast and unicast) */ |
| 2862 | tc_writel(CAM_Ena_Bit(CAM_ENTRY_SOURCE), &tr->CAM_Ena); |
| 2863 | tc_writel(CAM_CompEn | CAM_BroadAcc, &tr->CAM_Ctl); |
| 2864 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 2865 | /* Use DMA_RxAlign_2 to make IP header 4-byte aligned. */ |
| 2866 | if (HAVE_DMA_RXALIGN(lp)) |
| 2867 | tc_writel(DMA_BURST_SIZE | DMA_RxAlign_2, &tr->DMA_Ctl); |
| 2868 | else |
| 2869 | tc_writel(DMA_BURST_SIZE, &tr->DMA_Ctl); |
| 2870 | #ifdef TC35815_USE_PACKEDBUFFER |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2871 | tc_writel(RxFrag_EnPack | ETH_ZLEN, &tr->RxFragSize); /* Packing */ |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 2872 | #else |
| 2873 | tc_writel(ETH_ZLEN, &tr->RxFragSize); |
| 2874 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2875 | tc_writel(0, &tr->TxPollCtr); /* Batch mode */ |
| 2876 | tc_writel(TX_THRESHOLD, &tr->TxThrsh); |
| 2877 | tc_writel(INT_EN_CMD, &tr->Int_En); |
| 2878 | |
| 2879 | /* set queues */ |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 2880 | tc_writel(fd_virt_to_bus(lp, lp->rfd_base), &tr->FDA_Bas); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2881 | tc_writel((unsigned long)lp->rfd_limit - (unsigned long)lp->rfd_base, |
| 2882 | &tr->FDA_Lim); |
| 2883 | /* |
| 2884 | * Activation method: |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 2885 | * First, enable the MAC Transmitter and the DMA Receive circuits. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2886 | * Then enable the DMA Transmitter and the MAC Receive circuits. |
| 2887 | */ |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 2888 | tc_writel(fd_virt_to_bus(lp, lp->fbl_ptr), &tr->BLFrmPtr); /* start DMA receiver */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2889 | tc_writel(RX_CTL_CMD, &tr->Rx_Ctl); /* start MAC receiver */ |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 2890 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2891 | /* start MAC transmitter */ |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 2892 | #ifndef NO_CHECK_CARRIER |
| 2893 | /* TX4939 does not have EnLCarr */ |
| 2894 | if (lp->boardtype == TC35815_TX4939) |
| 2895 | txctl &= ~Tx_EnLCarr; |
| 2896 | #ifdef WORKAROUND_LOSTCAR |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2897 | /* WORKAROUND: ignore LostCrS in full duplex operation */ |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 2898 | if ((lp->timer_state != asleep && lp->timer_state != lcheck) || |
| 2899 | lp->fullduplex) |
| 2900 | txctl &= ~Tx_EnLCarr; |
| 2901 | #endif |
| 2902 | #endif /* !NO_CHECK_CARRIER */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2903 | #ifdef GATHER_TXINT |
| 2904 | txctl &= ~Tx_EnComp; /* disable global tx completion int. */ |
| 2905 | #endif |
| 2906 | tc_writel(txctl, &tr->Tx_Ctl); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2907 | } |
| 2908 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 2909 | #ifdef CONFIG_PM |
| 2910 | static int tc35815_suspend(struct pci_dev *pdev, pm_message_t state) |
| 2911 | { |
| 2912 | struct net_device *dev = pci_get_drvdata(pdev); |
| 2913 | struct tc35815_local *lp = dev->priv; |
| 2914 | unsigned long flags; |
| 2915 | |
| 2916 | pci_save_state(pdev); |
| 2917 | if (!netif_running(dev)) |
| 2918 | return 0; |
| 2919 | netif_device_detach(dev); |
| 2920 | spin_lock_irqsave(&lp->lock, flags); |
| 2921 | del_timer(&lp->timer); /* Kill if running */ |
| 2922 | tc35815_chip_reset(dev); |
| 2923 | spin_unlock_irqrestore(&lp->lock, flags); |
| 2924 | pci_set_power_state(pdev, PCI_D3hot); |
| 2925 | return 0; |
| 2926 | } |
| 2927 | |
| 2928 | static int tc35815_resume(struct pci_dev *pdev) |
| 2929 | { |
| 2930 | struct net_device *dev = pci_get_drvdata(pdev); |
| 2931 | struct tc35815_local *lp = dev->priv; |
| 2932 | unsigned long flags; |
| 2933 | |
| 2934 | pci_restore_state(pdev); |
| 2935 | if (!netif_running(dev)) |
| 2936 | return 0; |
| 2937 | pci_set_power_state(pdev, PCI_D0); |
| 2938 | spin_lock_irqsave(&lp->lock, flags); |
| 2939 | tc35815_restart(dev); |
| 2940 | spin_unlock_irqrestore(&lp->lock, flags); |
| 2941 | netif_device_attach(dev); |
| 2942 | return 0; |
| 2943 | } |
| 2944 | #endif /* CONFIG_PM */ |
| 2945 | |
| 2946 | static struct pci_driver tc35815_pci_driver = { |
| 2947 | .name = MODNAME, |
| 2948 | .id_table = tc35815_pci_tbl, |
| 2949 | .probe = tc35815_init_one, |
| 2950 | .remove = __devexit_p(tc35815_remove_one), |
| 2951 | #ifdef CONFIG_PM |
| 2952 | .suspend = tc35815_suspend, |
| 2953 | .resume = tc35815_resume, |
| 2954 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2955 | }; |
| 2956 | |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 2957 | module_param_named(speed, options.speed, int, 0); |
| 2958 | MODULE_PARM_DESC(speed, "0:auto, 10:10Mbps, 100:100Mbps"); |
| 2959 | module_param_named(duplex, options.duplex, int, 0); |
| 2960 | MODULE_PARM_DESC(duplex, "0:auto, 1:half, 2:full"); |
| 2961 | module_param_named(doforce, options.doforce, int, 0); |
| 2962 | MODULE_PARM_DESC(doforce, "try force link mode if auto-negotiation failed"); |
| 2963 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2964 | static int __init tc35815_init_module(void) |
| 2965 | { |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 2966 | return pci_register_driver(&tc35815_pci_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2967 | } |
| 2968 | |
| 2969 | static void __exit tc35815_cleanup_module(void) |
| 2970 | { |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 2971 | pci_unregister_driver(&tc35815_pci_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2972 | } |
Jeff Garzik | 420e852 | 2007-02-24 17:02:16 -0500 | [diff] [blame] | 2973 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2974 | module_init(tc35815_init_module); |
| 2975 | module_exit(tc35815_cleanup_module); |
Atsushi Nemoto | eea221ce | 2007-03-03 23:54:59 +0900 | [diff] [blame^] | 2976 | |
| 2977 | MODULE_DESCRIPTION("TOSHIBA TC35815 PCI 10M/100M Ethernet driver"); |
| 2978 | MODULE_LICENSE("GPL"); |