Atsushi Nemoto | eea221c | 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 | eea221c | 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 | eea221c | 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 | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 21 | * (C) Copyright TOSHIBA CORPORATION 2004-2005 |
| 22 | * All Rights Reserved. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 23 | */ |
| 24 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 25 | #ifdef TC35815_NAPI |
Atsushi Nemoto | bd43da8 | 2007-06-29 22:34:53 +0900 | [diff] [blame] | 26 | #define DRV_VERSION "1.36-NAPI" |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 27 | #else |
Atsushi Nemoto | bd43da8 | 2007-06-29 22:34:53 +0900 | [diff] [blame] | 28 | #define DRV_VERSION "1.36" |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 29 | #endif |
| 30 | static const char *version = "tc35815.c:v" DRV_VERSION "\n"; |
| 31 | #define MODNAME "tc35815" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 32 | |
| 33 | #include <linux/module.h> |
| 34 | #include <linux/kernel.h> |
| 35 | #include <linux/types.h> |
| 36 | #include <linux/fcntl.h> |
| 37 | #include <linux/interrupt.h> |
| 38 | #include <linux/ioport.h> |
| 39 | #include <linux/in.h> |
| 40 | #include <linux/slab.h> |
| 41 | #include <linux/string.h> |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 42 | #include <linux/spinlock.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 43 | #include <linux/errno.h> |
| 44 | #include <linux/init.h> |
| 45 | #include <linux/netdevice.h> |
| 46 | #include <linux/etherdevice.h> |
| 47 | #include <linux/skbuff.h> |
| 48 | #include <linux/delay.h> |
| 49 | #include <linux/pci.h> |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 50 | #include <linux/mii.h> |
| 51 | #include <linux/ethtool.h> |
Atsushi Nemoto | bd43da8 | 2007-06-29 22:34:53 +0900 | [diff] [blame] | 52 | #include <linux/platform_device.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 53 | #include <asm/io.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 54 | #include <asm/byteorder.h> |
| 55 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 56 | /* First, a few definitions that the brave might change. */ |
| 57 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 58 | #define GATHER_TXINT /* On-Demand Tx Interrupt */ |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 59 | #define WORKAROUND_LOSTCAR |
| 60 | #define WORKAROUND_100HALF_PROMISC |
| 61 | /* #define TC35815_USE_PACKEDBUFFER */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 62 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 63 | typedef enum { |
| 64 | TC35815CF = 0, |
| 65 | TC35815_NWU, |
| 66 | TC35815_TX4939, |
| 67 | } board_t; |
| 68 | |
| 69 | /* indexed by board_t, above */ |
| 70 | static const struct { |
| 71 | const char *name; |
| 72 | } board_info[] __devinitdata = { |
| 73 | { "TOSHIBA TC35815CF 10/100BaseTX" }, |
| 74 | { "TOSHIBA TC35815 with Wake on LAN" }, |
| 75 | { "TOSHIBA TC35815/TX4939" }, |
| 76 | }; |
| 77 | |
| 78 | static const struct pci_device_id tc35815_pci_tbl[] = { |
| 79 | {PCI_DEVICE(PCI_VENDOR_ID_TOSHIBA_2, PCI_DEVICE_ID_TOSHIBA_TC35815CF), .driver_data = TC35815CF }, |
| 80 | {PCI_DEVICE(PCI_VENDOR_ID_TOSHIBA_2, PCI_DEVICE_ID_TOSHIBA_TC35815_NWU), .driver_data = TC35815_NWU }, |
| 81 | {PCI_DEVICE(PCI_VENDOR_ID_TOSHIBA_2, PCI_DEVICE_ID_TOSHIBA_TC35815_TX4939), .driver_data = TC35815_TX4939 }, |
| 82 | {0,} |
| 83 | }; |
| 84 | MODULE_DEVICE_TABLE (pci, tc35815_pci_tbl); |
| 85 | |
| 86 | /* see MODULE_PARM_DESC */ |
| 87 | static struct tc35815_options { |
| 88 | int speed; |
| 89 | int duplex; |
| 90 | int doforce; |
| 91 | } options; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 92 | |
| 93 | /* |
| 94 | * Registers |
| 95 | */ |
| 96 | struct tc35815_regs { |
| 97 | volatile __u32 DMA_Ctl; /* 0x00 */ |
| 98 | volatile __u32 TxFrmPtr; |
| 99 | volatile __u32 TxThrsh; |
| 100 | volatile __u32 TxPollCtr; |
| 101 | volatile __u32 BLFrmPtr; |
| 102 | volatile __u32 RxFragSize; |
| 103 | volatile __u32 Int_En; |
| 104 | volatile __u32 FDA_Bas; |
| 105 | volatile __u32 FDA_Lim; /* 0x20 */ |
| 106 | volatile __u32 Int_Src; |
| 107 | volatile __u32 unused0[2]; |
| 108 | volatile __u32 PauseCnt; |
| 109 | volatile __u32 RemPauCnt; |
| 110 | volatile __u32 TxCtlFrmStat; |
| 111 | volatile __u32 unused1; |
| 112 | volatile __u32 MAC_Ctl; /* 0x40 */ |
| 113 | volatile __u32 CAM_Ctl; |
| 114 | volatile __u32 Tx_Ctl; |
| 115 | volatile __u32 Tx_Stat; |
| 116 | volatile __u32 Rx_Ctl; |
| 117 | volatile __u32 Rx_Stat; |
| 118 | volatile __u32 MD_Data; |
| 119 | volatile __u32 MD_CA; |
| 120 | volatile __u32 CAM_Adr; /* 0x60 */ |
| 121 | volatile __u32 CAM_Data; |
| 122 | volatile __u32 CAM_Ena; |
| 123 | volatile __u32 PROM_Ctl; |
| 124 | volatile __u32 PROM_Data; |
| 125 | volatile __u32 Algn_Cnt; |
| 126 | volatile __u32 CRC_Cnt; |
| 127 | volatile __u32 Miss_Cnt; |
| 128 | }; |
| 129 | |
| 130 | /* |
| 131 | * Bit assignments |
| 132 | */ |
| 133 | /* DMA_Ctl bit asign ------------------------------------------------------- */ |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 134 | #define DMA_RxAlign 0x00c00000 /* 1:Reception Alignment */ |
| 135 | #define DMA_RxAlign_1 0x00400000 |
| 136 | #define DMA_RxAlign_2 0x00800000 |
| 137 | #define DMA_RxAlign_3 0x00c00000 |
| 138 | #define DMA_M66EnStat 0x00080000 /* 1:66MHz Enable State */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 139 | #define DMA_IntMask 0x00040000 /* 1:Interupt mask */ |
| 140 | #define DMA_SWIntReq 0x00020000 /* 1:Software Interrupt request */ |
| 141 | #define DMA_TxWakeUp 0x00010000 /* 1:Transmit Wake Up */ |
| 142 | #define DMA_RxBigE 0x00008000 /* 1:Receive Big Endian */ |
| 143 | #define DMA_TxBigE 0x00004000 /* 1:Transmit Big Endian */ |
| 144 | #define DMA_TestMode 0x00002000 /* 1:Test Mode */ |
| 145 | #define DMA_PowrMgmnt 0x00001000 /* 1:Power Management */ |
| 146 | #define DMA_DmBurst_Mask 0x000001fc /* DMA Burst size */ |
| 147 | |
| 148 | /* RxFragSize bit asign ---------------------------------------------------- */ |
| 149 | #define RxFrag_EnPack 0x00008000 /* 1:Enable Packing */ |
| 150 | #define RxFrag_MinFragMask 0x00000ffc /* Minimum Fragment */ |
| 151 | |
| 152 | /* MAC_Ctl bit asign ------------------------------------------------------- */ |
| 153 | #define MAC_Link10 0x00008000 /* 1:Link Status 10Mbits */ |
| 154 | #define MAC_EnMissRoll 0x00002000 /* 1:Enable Missed Roll */ |
| 155 | #define MAC_MissRoll 0x00000400 /* 1:Missed Roll */ |
| 156 | #define MAC_Loop10 0x00000080 /* 1:Loop 10 Mbps */ |
| 157 | #define MAC_Conn_Auto 0x00000000 /*00:Connection mode (Automatic) */ |
| 158 | #define MAC_Conn_10M 0x00000020 /*01: (10Mbps endec)*/ |
| 159 | #define MAC_Conn_Mll 0x00000040 /*10: (Mll clock) */ |
| 160 | #define MAC_MacLoop 0x00000010 /* 1:MAC Loopback */ |
| 161 | #define MAC_FullDup 0x00000008 /* 1:Full Duplex 0:Half Duplex */ |
| 162 | #define MAC_Reset 0x00000004 /* 1:Software Reset */ |
| 163 | #define MAC_HaltImm 0x00000002 /* 1:Halt Immediate */ |
| 164 | #define MAC_HaltReq 0x00000001 /* 1:Halt request */ |
| 165 | |
| 166 | /* PROM_Ctl bit asign ------------------------------------------------------ */ |
| 167 | #define PROM_Busy 0x00008000 /* 1:Busy (Start Operation) */ |
| 168 | #define PROM_Read 0x00004000 /*10:Read operation */ |
| 169 | #define PROM_Write 0x00002000 /*01:Write operation */ |
| 170 | #define PROM_Erase 0x00006000 /*11:Erase operation */ |
| 171 | /*00:Enable or Disable Writting, */ |
| 172 | /* as specified in PROM_Addr. */ |
| 173 | #define PROM_Addr_Ena 0x00000030 /*11xxxx:PROM Write enable */ |
| 174 | /*00xxxx: disable */ |
| 175 | |
| 176 | /* CAM_Ctl bit asign ------------------------------------------------------- */ |
| 177 | #define CAM_CompEn 0x00000010 /* 1:CAM Compare Enable */ |
| 178 | #define CAM_NegCAM 0x00000008 /* 1:Reject packets CAM recognizes,*/ |
| 179 | /* accept other */ |
| 180 | #define CAM_BroadAcc 0x00000004 /* 1:Broadcast assept */ |
| 181 | #define CAM_GroupAcc 0x00000002 /* 1:Multicast assept */ |
| 182 | #define CAM_StationAcc 0x00000001 /* 1:unicast accept */ |
| 183 | |
| 184 | /* CAM_Ena bit asign ------------------------------------------------------- */ |
| 185 | #define CAM_ENTRY_MAX 21 /* CAM Data entry max count */ |
| 186 | #define CAM_Ena_Mask ((1<<CAM_ENTRY_MAX)-1) /* CAM Enable bits (Max 21bits) */ |
| 187 | #define CAM_Ena_Bit(index) (1<<(index)) |
| 188 | #define CAM_ENTRY_DESTINATION 0 |
| 189 | #define CAM_ENTRY_SOURCE 1 |
| 190 | #define CAM_ENTRY_MACCTL 20 |
| 191 | |
| 192 | /* Tx_Ctl bit asign -------------------------------------------------------- */ |
| 193 | #define Tx_En 0x00000001 /* 1:Transmit enable */ |
| 194 | #define Tx_TxHalt 0x00000002 /* 1:Transmit Halt Request */ |
| 195 | #define Tx_NoPad 0x00000004 /* 1:Suppress Padding */ |
| 196 | #define Tx_NoCRC 0x00000008 /* 1:Suppress Padding */ |
| 197 | #define Tx_FBack 0x00000010 /* 1:Fast Back-off */ |
| 198 | #define Tx_EnUnder 0x00000100 /* 1:Enable Underrun */ |
| 199 | #define Tx_EnExDefer 0x00000200 /* 1:Enable Excessive Deferral */ |
| 200 | #define Tx_EnLCarr 0x00000400 /* 1:Enable Lost Carrier */ |
| 201 | #define Tx_EnExColl 0x00000800 /* 1:Enable Excessive Collision */ |
| 202 | #define Tx_EnLateColl 0x00001000 /* 1:Enable Late Collision */ |
| 203 | #define Tx_EnTxPar 0x00002000 /* 1:Enable Transmit Parity */ |
| 204 | #define Tx_EnComp 0x00004000 /* 1:Enable Completion */ |
| 205 | |
| 206 | /* Tx_Stat bit asign ------------------------------------------------------- */ |
| 207 | #define Tx_TxColl_MASK 0x0000000F /* Tx Collision Count */ |
| 208 | #define Tx_ExColl 0x00000010 /* Excessive Collision */ |
| 209 | #define Tx_TXDefer 0x00000020 /* Transmit Defered */ |
| 210 | #define Tx_Paused 0x00000040 /* Transmit Paused */ |
| 211 | #define Tx_IntTx 0x00000080 /* Interrupt on Tx */ |
| 212 | #define Tx_Under 0x00000100 /* Underrun */ |
| 213 | #define Tx_Defer 0x00000200 /* Deferral */ |
| 214 | #define Tx_NCarr 0x00000400 /* No Carrier */ |
| 215 | #define Tx_10Stat 0x00000800 /* 10Mbps Status */ |
| 216 | #define Tx_LateColl 0x00001000 /* Late Collision */ |
| 217 | #define Tx_TxPar 0x00002000 /* Tx Parity Error */ |
| 218 | #define Tx_Comp 0x00004000 /* Completion */ |
| 219 | #define Tx_Halted 0x00008000 /* Tx Halted */ |
| 220 | #define Tx_SQErr 0x00010000 /* Signal Quality Error(SQE) */ |
| 221 | |
| 222 | /* Rx_Ctl bit asign -------------------------------------------------------- */ |
| 223 | #define Rx_EnGood 0x00004000 /* 1:Enable Good */ |
| 224 | #define Rx_EnRxPar 0x00002000 /* 1:Enable Receive Parity */ |
| 225 | #define Rx_EnLongErr 0x00000800 /* 1:Enable Long Error */ |
| 226 | #define Rx_EnOver 0x00000400 /* 1:Enable OverFlow */ |
| 227 | #define Rx_EnCRCErr 0x00000200 /* 1:Enable CRC Error */ |
| 228 | #define Rx_EnAlign 0x00000100 /* 1:Enable Alignment */ |
| 229 | #define Rx_IgnoreCRC 0x00000040 /* 1:Ignore CRC Value */ |
| 230 | #define Rx_StripCRC 0x00000010 /* 1:Strip CRC Value */ |
| 231 | #define Rx_ShortEn 0x00000008 /* 1:Short Enable */ |
| 232 | #define Rx_LongEn 0x00000004 /* 1:Long Enable */ |
| 233 | #define Rx_RxHalt 0x00000002 /* 1:Receive Halt Request */ |
| 234 | #define Rx_RxEn 0x00000001 /* 1:Receive Intrrupt Enable */ |
| 235 | |
| 236 | /* Rx_Stat bit asign ------------------------------------------------------- */ |
| 237 | #define Rx_Halted 0x00008000 /* Rx Halted */ |
| 238 | #define Rx_Good 0x00004000 /* Rx Good */ |
| 239 | #define Rx_RxPar 0x00002000 /* Rx Parity Error */ |
| 240 | /* 0x00001000 not use */ |
| 241 | #define Rx_LongErr 0x00000800 /* Rx Long Error */ |
| 242 | #define Rx_Over 0x00000400 /* Rx Overflow */ |
| 243 | #define Rx_CRCErr 0x00000200 /* Rx CRC Error */ |
| 244 | #define Rx_Align 0x00000100 /* Rx Alignment Error */ |
| 245 | #define Rx_10Stat 0x00000080 /* Rx 10Mbps Status */ |
| 246 | #define Rx_IntRx 0x00000040 /* Rx Interrupt */ |
| 247 | #define Rx_CtlRecd 0x00000020 /* Rx Control Receive */ |
| 248 | |
| 249 | #define Rx_Stat_Mask 0x0000EFC0 /* Rx All Status Mask */ |
| 250 | |
| 251 | /* Int_En bit asign -------------------------------------------------------- */ |
| 252 | #define Int_NRAbtEn 0x00000800 /* 1:Non-recoverable Abort Enable */ |
| 253 | #define Int_TxCtlCmpEn 0x00000400 /* 1:Transmit Control Complete Enable */ |
| 254 | #define Int_DmParErrEn 0x00000200 /* 1:DMA Parity Error Enable */ |
| 255 | #define Int_DParDEn 0x00000100 /* 1:Data Parity Error Enable */ |
| 256 | #define Int_EarNotEn 0x00000080 /* 1:Early Notify Enable */ |
| 257 | #define Int_DParErrEn 0x00000040 /* 1:Detected Parity Error Enable */ |
| 258 | #define Int_SSysErrEn 0x00000020 /* 1:Signalled System Error Enable */ |
| 259 | #define Int_RMasAbtEn 0x00000010 /* 1:Received Master Abort Enable */ |
| 260 | #define Int_RTargAbtEn 0x00000008 /* 1:Received Target Abort Enable */ |
| 261 | #define Int_STargAbtEn 0x00000004 /* 1:Signalled Target Abort Enable */ |
| 262 | #define Int_BLExEn 0x00000002 /* 1:Buffer List Exhausted Enable */ |
| 263 | #define Int_FDAExEn 0x00000001 /* 1:Free Descriptor Area */ |
| 264 | /* Exhausted Enable */ |
| 265 | |
| 266 | /* Int_Src bit asign ------------------------------------------------------- */ |
| 267 | #define Int_NRabt 0x00004000 /* 1:Non Recoverable error */ |
| 268 | #define Int_DmParErrStat 0x00002000 /* 1:DMA Parity Error & Clear */ |
| 269 | #define Int_BLEx 0x00001000 /* 1:Buffer List Empty & Clear */ |
| 270 | #define Int_FDAEx 0x00000800 /* 1:FDA Empty & Clear */ |
| 271 | #define Int_IntNRAbt 0x00000400 /* 1:Non Recoverable Abort */ |
| 272 | #define Int_IntCmp 0x00000200 /* 1:MAC control packet complete */ |
| 273 | #define Int_IntExBD 0x00000100 /* 1:Interrupt Extra BD & Clear */ |
| 274 | #define Int_DmParErr 0x00000080 /* 1:DMA Parity Error & Clear */ |
| 275 | #define Int_IntEarNot 0x00000040 /* 1:Receive Data write & Clear */ |
| 276 | #define Int_SWInt 0x00000020 /* 1:Software request & Clear */ |
| 277 | #define Int_IntBLEx 0x00000010 /* 1:Buffer List Empty & Clear */ |
| 278 | #define Int_IntFDAEx 0x00000008 /* 1:FDA Empty & Clear */ |
| 279 | #define Int_IntPCI 0x00000004 /* 1:PCI controller & Clear */ |
| 280 | #define Int_IntMacRx 0x00000002 /* 1:Rx controller & Clear */ |
| 281 | #define Int_IntMacTx 0x00000001 /* 1:Tx controller & Clear */ |
| 282 | |
| 283 | /* MD_CA bit asign --------------------------------------------------------- */ |
| 284 | #define MD_CA_PreSup 0x00001000 /* 1:Preamble Supress */ |
| 285 | #define MD_CA_Busy 0x00000800 /* 1:Busy (Start Operation) */ |
| 286 | #define MD_CA_Wr 0x00000400 /* 1:Write 0:Read */ |
| 287 | |
| 288 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 289 | /* |
| 290 | * Descriptors |
| 291 | */ |
| 292 | |
| 293 | /* Frame descripter */ |
| 294 | struct FDesc { |
| 295 | volatile __u32 FDNext; |
| 296 | volatile __u32 FDSystem; |
| 297 | volatile __u32 FDStat; |
| 298 | volatile __u32 FDCtl; |
| 299 | }; |
| 300 | |
| 301 | /* Buffer descripter */ |
| 302 | struct BDesc { |
| 303 | volatile __u32 BuffData; |
| 304 | volatile __u32 BDCtl; |
| 305 | }; |
| 306 | |
| 307 | #define FD_ALIGN 16 |
| 308 | |
| 309 | /* Frame Descripter bit asign ---------------------------------------------- */ |
| 310 | #define FD_FDLength_MASK 0x0000FFFF /* Length MASK */ |
| 311 | #define FD_BDCnt_MASK 0x001F0000 /* BD count MASK in FD */ |
| 312 | #define FD_FrmOpt_MASK 0x7C000000 /* Frame option MASK */ |
| 313 | #define FD_FrmOpt_BigEndian 0x40000000 /* Tx/Rx */ |
| 314 | #define FD_FrmOpt_IntTx 0x20000000 /* Tx only */ |
| 315 | #define FD_FrmOpt_NoCRC 0x10000000 /* Tx only */ |
| 316 | #define FD_FrmOpt_NoPadding 0x08000000 /* Tx only */ |
| 317 | #define FD_FrmOpt_Packing 0x04000000 /* Rx only */ |
| 318 | #define FD_CownsFD 0x80000000 /* FD Controller owner bit */ |
| 319 | #define FD_Next_EOL 0x00000001 /* FD EOL indicator */ |
| 320 | #define FD_BDCnt_SHIFT 16 |
| 321 | |
| 322 | /* Buffer Descripter bit asign --------------------------------------------- */ |
| 323 | #define BD_BuffLength_MASK 0x0000FFFF /* Recieve Data Size */ |
| 324 | #define BD_RxBDID_MASK 0x00FF0000 /* BD ID Number MASK */ |
| 325 | #define BD_RxBDSeqN_MASK 0x7F000000 /* Rx BD Sequence Number */ |
| 326 | #define BD_CownsBD 0x80000000 /* BD Controller owner bit */ |
| 327 | #define BD_RxBDID_SHIFT 16 |
| 328 | #define BD_RxBDSeqN_SHIFT 24 |
| 329 | |
| 330 | |
| 331 | /* Some useful constants. */ |
| 332 | #undef NO_CHECK_CARRIER /* Does not check No-Carrier with TP */ |
| 333 | |
| 334 | #ifdef NO_CHECK_CARRIER |
| 335 | #define TX_CTL_CMD (Tx_EnComp | Tx_EnTxPar | Tx_EnLateColl | \ |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 336 | Tx_EnExColl | Tx_EnExDefer | Tx_EnUnder | \ |
| 337 | Tx_En) /* maybe 0x7b01 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 338 | #else |
| 339 | #define TX_CTL_CMD (Tx_EnComp | Tx_EnTxPar | Tx_EnLateColl | \ |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 340 | Tx_EnExColl | Tx_EnLCarr | Tx_EnExDefer | Tx_EnUnder | \ |
| 341 | Tx_En) /* maybe 0x7b01 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 342 | #endif |
| 343 | #define RX_CTL_CMD (Rx_EnGood | Rx_EnRxPar | Rx_EnLongErr | Rx_EnOver \ |
| 344 | | Rx_EnCRCErr | Rx_EnAlign | Rx_RxEn) /* maybe 0x6f01 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 345 | #define INT_EN_CMD (Int_NRAbtEn | \ |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 346 | Int_DmParErrEn | Int_DParDEn | Int_DParErrEn | \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 347 | Int_SSysErrEn | Int_RMasAbtEn | Int_RTargAbtEn | \ |
| 348 | Int_STargAbtEn | \ |
| 349 | Int_BLExEn | Int_FDAExEn) /* maybe 0xb7f*/ |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 350 | #define DMA_CTL_CMD DMA_BURST_SIZE |
| 351 | #define HAVE_DMA_RXALIGN(lp) likely((lp)->boardtype != TC35815CF) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 352 | |
| 353 | /* Tuning parameters */ |
| 354 | #define DMA_BURST_SIZE 32 |
| 355 | #define TX_THRESHOLD 1024 |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 356 | #define TX_THRESHOLD_MAX 1536 /* used threshold with packet max byte for low pci transfer ability.*/ |
| 357 | #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] | 358 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 359 | /* 16 + RX_BUF_NUM * 8 + RX_FD_NUM * 16 + TX_FD_NUM * 32 <= PAGE_SIZE*FD_PAGE_NUM */ |
| 360 | #ifdef TC35815_USE_PACKEDBUFFER |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 361 | #define FD_PAGE_NUM 2 |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 362 | #define RX_BUF_NUM 8 /* >= 2 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 363 | #define RX_FD_NUM 250 /* >= 32 */ |
| 364 | #define TX_FD_NUM 128 |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 365 | #define RX_BUF_SIZE PAGE_SIZE |
| 366 | #else /* TC35815_USE_PACKEDBUFFER */ |
| 367 | #define FD_PAGE_NUM 4 |
| 368 | #define RX_BUF_NUM 128 /* < 256 */ |
| 369 | #define RX_FD_NUM 256 /* >= 32 */ |
| 370 | #define TX_FD_NUM 128 |
| 371 | #if RX_CTL_CMD & Rx_LongEn |
| 372 | #define RX_BUF_SIZE PAGE_SIZE |
| 373 | #elif RX_CTL_CMD & Rx_StripCRC |
| 374 | #define RX_BUF_SIZE ALIGN(ETH_FRAME_LEN + 4 + 2, 32) /* +2: reserve */ |
| 375 | #else |
| 376 | #define RX_BUF_SIZE ALIGN(ETH_FRAME_LEN + 2, 32) /* +2: reserve */ |
| 377 | #endif |
| 378 | #endif /* TC35815_USE_PACKEDBUFFER */ |
| 379 | #define RX_FD_RESERVE (2 / 2) /* max 2 BD per RxFD */ |
| 380 | #define NAPI_WEIGHT 16 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 381 | |
| 382 | struct TxFD { |
| 383 | struct FDesc fd; |
| 384 | struct BDesc bd; |
| 385 | struct BDesc unused; |
| 386 | }; |
| 387 | |
| 388 | struct RxFD { |
| 389 | struct FDesc fd; |
| 390 | struct BDesc bd[0]; /* variable length */ |
| 391 | }; |
| 392 | |
| 393 | struct FrFD { |
| 394 | struct FDesc fd; |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 395 | struct BDesc bd[RX_BUF_NUM]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 396 | }; |
| 397 | |
| 398 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 399 | #define tc_readl(addr) readl(addr) |
| 400 | #define tc_writel(d, addr) writel(d, addr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 401 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 402 | #define TC35815_TX_TIMEOUT msecs_to_jiffies(400) |
| 403 | |
| 404 | /* Timer state engine. */ |
| 405 | enum tc35815_timer_state { |
| 406 | arbwait = 0, /* Waiting for auto negotiation to complete. */ |
| 407 | lupwait = 1, /* Auto-neg complete, awaiting link-up status. */ |
| 408 | ltrywait = 2, /* Forcing try of all modes, from fastest to slowest. */ |
| 409 | asleep = 3, /* Time inactive. */ |
| 410 | lcheck = 4, /* Check link status. */ |
| 411 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 412 | |
| 413 | /* Information that need to be kept for each board. */ |
| 414 | struct tc35815_local { |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 415 | struct pci_dev *pci_dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 416 | |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 417 | struct net_device *dev; |
| 418 | struct napi_struct napi; |
| 419 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 420 | /* statistics */ |
| 421 | struct net_device_stats stats; |
| 422 | struct { |
| 423 | int max_tx_qlen; |
| 424 | int tx_ints; |
| 425 | int rx_ints; |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 426 | int tx_underrun; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 427 | } lstats; |
| 428 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 429 | /* Tx control lock. This protects the transmit buffer ring |
| 430 | * state along with the "tx full" state of the driver. This |
| 431 | * means all netif_queue flow control actions are protected |
| 432 | * by this lock as well. |
| 433 | */ |
| 434 | spinlock_t lock; |
| 435 | |
| 436 | int phy_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 437 | int fullduplex; |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 438 | unsigned short saved_lpa; |
| 439 | struct timer_list timer; |
| 440 | enum tc35815_timer_state timer_state; /* State of auto-neg timer. */ |
| 441 | unsigned int timer_ticks; /* Number of clicks at each state */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 442 | |
| 443 | /* |
| 444 | * Transmitting: Batch Mode. |
| 445 | * 1 BD in 1 TxFD. |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 446 | * Receiving: Packing Mode. (TC35815_USE_PACKEDBUFFER) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 447 | * 1 circular FD for Free Buffer List. |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 448 | * RX_BUF_NUM BD in Free Buffer FD. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 449 | * One Free Buffer BD has PAGE_SIZE data buffer. |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 450 | * Or Non-Packing Mode. |
| 451 | * 1 circular FD for Free Buffer List. |
| 452 | * RX_BUF_NUM BD in Free Buffer FD. |
| 453 | * One Free Buffer BD has ETH_FRAME_LEN data buffer. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 454 | */ |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 455 | void * fd_buf; /* for TxFD, RxFD, FrFD */ |
| 456 | dma_addr_t fd_buf_dma; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 457 | struct TxFD *tfd_base; |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 458 | unsigned int tfd_start; |
| 459 | unsigned int tfd_end; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 460 | struct RxFD *rfd_base; |
| 461 | struct RxFD *rfd_limit; |
| 462 | struct RxFD *rfd_cur; |
| 463 | struct FrFD *fbl_ptr; |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 464 | #ifdef TC35815_USE_PACKEDBUFFER |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 465 | unsigned char fbl_curid; |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 466 | void * data_buf[RX_BUF_NUM]; /* packing */ |
| 467 | dma_addr_t data_buf_dma[RX_BUF_NUM]; |
| 468 | struct { |
| 469 | struct sk_buff *skb; |
| 470 | dma_addr_t skb_dma; |
| 471 | } tx_skbs[TX_FD_NUM]; |
| 472 | #else |
| 473 | unsigned int fbl_count; |
| 474 | struct { |
| 475 | struct sk_buff *skb; |
| 476 | dma_addr_t skb_dma; |
| 477 | } tx_skbs[TX_FD_NUM], rx_skbs[RX_BUF_NUM]; |
| 478 | #endif |
| 479 | struct mii_if_info mii; |
| 480 | unsigned short mii_id[2]; |
| 481 | u32 msg_enable; |
| 482 | board_t boardtype; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 483 | }; |
| 484 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 485 | static inline dma_addr_t fd_virt_to_bus(struct tc35815_local *lp, void *virt) |
| 486 | { |
| 487 | return lp->fd_buf_dma + ((u8 *)virt - (u8 *)lp->fd_buf); |
| 488 | } |
| 489 | #ifdef DEBUG |
| 490 | static inline void *fd_bus_to_virt(struct tc35815_local *lp, dma_addr_t bus) |
| 491 | { |
| 492 | return (void *)((u8 *)lp->fd_buf + (bus - lp->fd_buf_dma)); |
| 493 | } |
| 494 | #endif |
| 495 | #ifdef TC35815_USE_PACKEDBUFFER |
| 496 | static inline void *rxbuf_bus_to_virt(struct tc35815_local *lp, dma_addr_t bus) |
| 497 | { |
| 498 | int i; |
| 499 | for (i = 0; i < RX_BUF_NUM; i++) { |
| 500 | if (bus >= lp->data_buf_dma[i] && |
| 501 | bus < lp->data_buf_dma[i] + PAGE_SIZE) |
| 502 | return (void *)((u8 *)lp->data_buf[i] + |
| 503 | (bus - lp->data_buf_dma[i])); |
| 504 | } |
| 505 | return NULL; |
| 506 | } |
| 507 | |
| 508 | #define TC35815_DMA_SYNC_ONDEMAND |
| 509 | static void* alloc_rxbuf_page(struct pci_dev *hwdev, dma_addr_t *dma_handle) |
| 510 | { |
| 511 | #ifdef TC35815_DMA_SYNC_ONDEMAND |
| 512 | void *buf; |
| 513 | /* pci_map + pci_dma_sync will be more effective than |
| 514 | * pci_alloc_consistent on some archs. */ |
| 515 | if ((buf = (void *)__get_free_page(GFP_ATOMIC)) == NULL) |
| 516 | return NULL; |
| 517 | *dma_handle = pci_map_single(hwdev, buf, PAGE_SIZE, |
| 518 | PCI_DMA_FROMDEVICE); |
| 519 | if (pci_dma_mapping_error(*dma_handle)) { |
| 520 | free_page((unsigned long)buf); |
| 521 | return NULL; |
| 522 | } |
| 523 | return buf; |
| 524 | #else |
| 525 | return pci_alloc_consistent(hwdev, PAGE_SIZE, dma_handle); |
| 526 | #endif |
| 527 | } |
| 528 | |
| 529 | static void free_rxbuf_page(struct pci_dev *hwdev, void *buf, dma_addr_t dma_handle) |
| 530 | { |
| 531 | #ifdef TC35815_DMA_SYNC_ONDEMAND |
| 532 | pci_unmap_single(hwdev, dma_handle, PAGE_SIZE, PCI_DMA_FROMDEVICE); |
| 533 | free_page((unsigned long)buf); |
| 534 | #else |
| 535 | pci_free_consistent(hwdev, PAGE_SIZE, buf, dma_handle); |
| 536 | #endif |
| 537 | } |
| 538 | #else /* TC35815_USE_PACKEDBUFFER */ |
| 539 | static struct sk_buff *alloc_rxbuf_skb(struct net_device *dev, |
| 540 | struct pci_dev *hwdev, |
| 541 | dma_addr_t *dma_handle) |
| 542 | { |
| 543 | struct sk_buff *skb; |
| 544 | skb = dev_alloc_skb(RX_BUF_SIZE); |
| 545 | if (!skb) |
| 546 | return NULL; |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 547 | *dma_handle = pci_map_single(hwdev, skb->data, RX_BUF_SIZE, |
| 548 | PCI_DMA_FROMDEVICE); |
| 549 | if (pci_dma_mapping_error(*dma_handle)) { |
| 550 | dev_kfree_skb_any(skb); |
| 551 | return NULL; |
| 552 | } |
| 553 | skb_reserve(skb, 2); /* make IP header 4byte aligned */ |
| 554 | return skb; |
| 555 | } |
| 556 | |
| 557 | static void free_rxbuf_skb(struct pci_dev *hwdev, struct sk_buff *skb, dma_addr_t dma_handle) |
| 558 | { |
| 559 | pci_unmap_single(hwdev, dma_handle, RX_BUF_SIZE, |
| 560 | PCI_DMA_FROMDEVICE); |
| 561 | dev_kfree_skb_any(skb); |
| 562 | } |
| 563 | #endif /* TC35815_USE_PACKEDBUFFER */ |
| 564 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 565 | /* Index to functions, as function prototypes. */ |
| 566 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 567 | static int tc35815_open(struct net_device *dev); |
| 568 | static int tc35815_send_packet(struct sk_buff *skb, struct net_device *dev); |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 569 | static irqreturn_t tc35815_interrupt(int irq, void *dev_id); |
| 570 | #ifdef TC35815_NAPI |
| 571 | static int tc35815_rx(struct net_device *dev, int limit); |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 572 | static int tc35815_poll(struct napi_struct *napi, int budget); |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 573 | #else |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 574 | static void tc35815_rx(struct net_device *dev); |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 575 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 576 | static void tc35815_txdone(struct net_device *dev); |
| 577 | static int tc35815_close(struct net_device *dev); |
| 578 | static struct net_device_stats *tc35815_get_stats(struct net_device *dev); |
| 579 | static void tc35815_set_multicast_list(struct net_device *dev); |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 580 | static void tc35815_tx_timeout(struct net_device *dev); |
| 581 | static int tc35815_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); |
| 582 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 583 | static void tc35815_poll_controller(struct net_device *dev); |
| 584 | #endif |
| 585 | static const struct ethtool_ops tc35815_ethtool_ops; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 586 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 587 | /* Example routines you must write ;->. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 588 | static void tc35815_chip_reset(struct net_device *dev); |
| 589 | static void tc35815_chip_init(struct net_device *dev); |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 590 | static void tc35815_find_phy(struct net_device *dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 591 | static void tc35815_phy_chip_init(struct net_device *dev); |
| 592 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 593 | #ifdef DEBUG |
| 594 | static void panic_queues(struct net_device *dev); |
| 595 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 596 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 597 | static void tc35815_timer(unsigned long data); |
| 598 | static void tc35815_start_auto_negotiation(struct net_device *dev, |
| 599 | struct ethtool_cmd *ep); |
| 600 | static int tc_mdio_read(struct net_device *dev, int phy_id, int location); |
| 601 | static void tc_mdio_write(struct net_device *dev, int phy_id, int location, |
| 602 | int val); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 603 | |
Atsushi Nemoto | bd43da8 | 2007-06-29 22:34:53 +0900 | [diff] [blame] | 604 | #ifdef CONFIG_CPU_TX49XX |
| 605 | /* |
| 606 | * Find a platform_device providing a MAC address. The platform code |
| 607 | * should provide a "tc35815-mac" device with a MAC address in its |
| 608 | * platform_data. |
| 609 | */ |
| 610 | static int __devinit tc35815_mac_match(struct device *dev, void *data) |
| 611 | { |
| 612 | struct platform_device *plat_dev = to_platform_device(dev); |
| 613 | struct pci_dev *pci_dev = data; |
| 614 | unsigned int id = (pci_dev->bus->number << 8) | pci_dev->devfn; |
| 615 | return !strcmp(plat_dev->name, "tc35815-mac") && plat_dev->id == id; |
| 616 | } |
| 617 | |
| 618 | static int __devinit tc35815_read_plat_dev_addr(struct net_device *dev) |
| 619 | { |
| 620 | struct tc35815_local *lp = dev->priv; |
| 621 | struct device *pd = bus_find_device(&platform_bus_type, NULL, |
| 622 | lp->pci_dev, tc35815_mac_match); |
| 623 | if (pd) { |
| 624 | if (pd->platform_data) |
| 625 | memcpy(dev->dev_addr, pd->platform_data, ETH_ALEN); |
| 626 | put_device(pd); |
| 627 | return is_valid_ether_addr(dev->dev_addr) ? 0 : -ENODEV; |
| 628 | } |
| 629 | return -ENODEV; |
| 630 | } |
| 631 | #else |
Yoichi Yuasa | 308a906 | 2007-07-18 11:13:42 +0900 | [diff] [blame] | 632 | static int __devinit tc35815_read_plat_dev_addr(struct net_device *dev) |
Atsushi Nemoto | bd43da8 | 2007-06-29 22:34:53 +0900 | [diff] [blame] | 633 | { |
| 634 | return -ENODEV; |
| 635 | } |
| 636 | #endif |
| 637 | |
| 638 | static int __devinit tc35815_init_dev_addr (struct net_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 639 | { |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 640 | struct tc35815_regs __iomem *tr = |
| 641 | (struct tc35815_regs __iomem *)dev->base_addr; |
| 642 | int i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 643 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 644 | while (tc_readl(&tr->PROM_Ctl) & PROM_Busy) |
| 645 | ; |
| 646 | for (i = 0; i < 6; i += 2) { |
| 647 | unsigned short data; |
| 648 | tc_writel(PROM_Busy | PROM_Read | (i / 2 + 2), &tr->PROM_Ctl); |
| 649 | while (tc_readl(&tr->PROM_Ctl) & PROM_Busy) |
| 650 | ; |
| 651 | data = tc_readl(&tr->PROM_Data); |
| 652 | dev->dev_addr[i] = data & 0xff; |
| 653 | dev->dev_addr[i+1] = data >> 8; |
| 654 | } |
Atsushi Nemoto | bd43da8 | 2007-06-29 22:34:53 +0900 | [diff] [blame] | 655 | if (!is_valid_ether_addr(dev->dev_addr)) |
| 656 | return tc35815_read_plat_dev_addr(dev); |
| 657 | return 0; |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 658 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 659 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 660 | static int __devinit tc35815_init_one (struct pci_dev *pdev, |
| 661 | const struct pci_device_id *ent) |
| 662 | { |
| 663 | void __iomem *ioaddr = NULL; |
| 664 | struct net_device *dev; |
| 665 | struct tc35815_local *lp; |
| 666 | int rc; |
| 667 | unsigned long mmio_start, mmio_end, mmio_flags, mmio_len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 668 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 669 | static int printed_version; |
| 670 | if (!printed_version++) { |
| 671 | printk(version); |
| 672 | dev_printk(KERN_DEBUG, &pdev->dev, |
| 673 | "speed:%d duplex:%d doforce:%d\n", |
| 674 | options.speed, options.duplex, options.doforce); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 675 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 676 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 677 | if (!pdev->irq) { |
| 678 | dev_warn(&pdev->dev, "no IRQ assigned.\n"); |
| 679 | return -ENODEV; |
| 680 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 681 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 682 | /* dev zeroed in alloc_etherdev */ |
| 683 | dev = alloc_etherdev (sizeof (*lp)); |
| 684 | if (dev == NULL) { |
| 685 | dev_err(&pdev->dev, "unable to alloc new ethernet\n"); |
| 686 | return -ENOMEM; |
| 687 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 688 | SET_NETDEV_DEV(dev, &pdev->dev); |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 689 | lp = dev->priv; |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 690 | lp->dev = dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 691 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 692 | /* enable device (incl. PCI PM wakeup), and bus-mastering */ |
| 693 | rc = pci_enable_device (pdev); |
| 694 | if (rc) |
| 695 | goto err_out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 696 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 697 | mmio_start = pci_resource_start (pdev, 1); |
| 698 | mmio_end = pci_resource_end (pdev, 1); |
| 699 | mmio_flags = pci_resource_flags (pdev, 1); |
| 700 | mmio_len = pci_resource_len (pdev, 1); |
| 701 | |
| 702 | /* set this immediately, we need to know before |
| 703 | * we talk to the chip directly */ |
| 704 | |
| 705 | /* make sure PCI base addr 1 is MMIO */ |
| 706 | if (!(mmio_flags & IORESOURCE_MEM)) { |
| 707 | dev_err(&pdev->dev, "region #1 not an MMIO resource, aborting\n"); |
| 708 | rc = -ENODEV; |
| 709 | goto err_out; |
| 710 | } |
| 711 | |
| 712 | /* check for weird/broken PCI region reporting */ |
| 713 | if ((mmio_len < sizeof(struct tc35815_regs))) { |
| 714 | dev_err(&pdev->dev, "Invalid PCI region size(s), aborting\n"); |
| 715 | rc = -ENODEV; |
| 716 | goto err_out; |
| 717 | } |
| 718 | |
| 719 | rc = pci_request_regions (pdev, MODNAME); |
| 720 | if (rc) |
| 721 | goto err_out; |
| 722 | |
| 723 | pci_set_master (pdev); |
| 724 | |
| 725 | /* ioremap MMIO region */ |
| 726 | ioaddr = ioremap (mmio_start, mmio_len); |
| 727 | if (ioaddr == NULL) { |
| 728 | dev_err(&pdev->dev, "cannot remap MMIO, aborting\n"); |
| 729 | rc = -EIO; |
| 730 | goto err_out_free_res; |
| 731 | } |
| 732 | |
| 733 | /* Initialize the device structure. */ |
| 734 | dev->open = tc35815_open; |
| 735 | dev->hard_start_xmit = tc35815_send_packet; |
| 736 | dev->stop = tc35815_close; |
| 737 | dev->get_stats = tc35815_get_stats; |
| 738 | dev->set_multicast_list = tc35815_set_multicast_list; |
| 739 | dev->do_ioctl = tc35815_ioctl; |
| 740 | dev->ethtool_ops = &tc35815_ethtool_ops; |
| 741 | dev->tx_timeout = tc35815_tx_timeout; |
| 742 | dev->watchdog_timeo = TC35815_TX_TIMEOUT; |
| 743 | #ifdef TC35815_NAPI |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 744 | netif_napi_add(dev, &lp->napi, tc35815_poll, NAPI_WEIGHT); |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 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 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 753 | spin_lock_init(&lp->lock); |
| 754 | lp->pci_dev = pdev; |
| 755 | lp->boardtype = ent->driver_data; |
| 756 | |
| 757 | lp->msg_enable = NETIF_MSG_TX_ERR | NETIF_MSG_HW | NETIF_MSG_DRV | NETIF_MSG_LINK; |
| 758 | pci_set_drvdata(pdev, dev); |
| 759 | |
| 760 | /* Soft reset the chip. */ |
| 761 | tc35815_chip_reset(dev); |
| 762 | |
| 763 | /* Retrieve the ethernet address. */ |
Atsushi Nemoto | bd43da8 | 2007-06-29 22:34:53 +0900 | [diff] [blame] | 764 | if (tc35815_init_dev_addr(dev)) { |
| 765 | dev_warn(&pdev->dev, "not valid ether addr\n"); |
| 766 | random_ether_addr(dev->dev_addr); |
| 767 | } |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 768 | |
| 769 | rc = register_netdev (dev); |
| 770 | if (rc) |
| 771 | goto err_out_unmap; |
| 772 | |
| 773 | memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len); |
| 774 | printk(KERN_INFO "%s: %s at 0x%lx, " |
| 775 | "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x, " |
| 776 | "IRQ %d\n", |
| 777 | dev->name, |
| 778 | board_info[ent->driver_data].name, |
| 779 | dev->base_addr, |
| 780 | dev->dev_addr[0], dev->dev_addr[1], |
| 781 | dev->dev_addr[2], dev->dev_addr[3], |
| 782 | dev->dev_addr[4], dev->dev_addr[5], |
| 783 | dev->irq); |
| 784 | |
| 785 | setup_timer(&lp->timer, tc35815_timer, (unsigned long) dev); |
| 786 | lp->mii.dev = dev; |
| 787 | lp->mii.mdio_read = tc_mdio_read; |
| 788 | lp->mii.mdio_write = tc_mdio_write; |
| 789 | lp->mii.phy_id_mask = 0x1f; |
| 790 | lp->mii.reg_num_mask = 0x1f; |
| 791 | tc35815_find_phy(dev); |
| 792 | lp->mii.phy_id = lp->phy_addr; |
| 793 | lp->mii.full_duplex = 0; |
| 794 | lp->mii.force_media = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 795 | |
| 796 | return 0; |
| 797 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 798 | err_out_unmap: |
| 799 | iounmap(ioaddr); |
| 800 | err_out_free_res: |
| 801 | pci_release_regions (pdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 802 | err_out: |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 803 | free_netdev (dev); |
| 804 | return rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 805 | } |
| 806 | |
| 807 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 808 | static void __devexit tc35815_remove_one (struct pci_dev *pdev) |
| 809 | { |
| 810 | struct net_device *dev = pci_get_drvdata (pdev); |
| 811 | unsigned long mmio_addr; |
| 812 | |
| 813 | mmio_addr = dev->base_addr; |
| 814 | |
| 815 | unregister_netdev (dev); |
| 816 | |
| 817 | if (mmio_addr) { |
| 818 | iounmap ((void __iomem *)mmio_addr); |
| 819 | pci_release_regions (pdev); |
| 820 | } |
| 821 | |
| 822 | free_netdev (dev); |
| 823 | |
| 824 | pci_set_drvdata (pdev, NULL); |
| 825 | } |
| 826 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 827 | static int |
| 828 | tc35815_init_queues(struct net_device *dev) |
| 829 | { |
| 830 | struct tc35815_local *lp = dev->priv; |
| 831 | int i; |
| 832 | unsigned long fd_addr; |
| 833 | |
| 834 | if (!lp->fd_buf) { |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 835 | BUG_ON(sizeof(struct FDesc) + |
| 836 | sizeof(struct BDesc) * RX_BUF_NUM + |
| 837 | sizeof(struct FDesc) * RX_FD_NUM + |
| 838 | sizeof(struct TxFD) * TX_FD_NUM > |
| 839 | PAGE_SIZE * FD_PAGE_NUM); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 840 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 841 | 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] | 842 | return -ENOMEM; |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 843 | for (i = 0; i < RX_BUF_NUM; i++) { |
| 844 | #ifdef TC35815_USE_PACKEDBUFFER |
| 845 | 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] | 846 | while (--i >= 0) { |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 847 | free_rxbuf_page(lp->pci_dev, |
| 848 | lp->data_buf[i], |
| 849 | lp->data_buf_dma[i]); |
| 850 | lp->data_buf[i] = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 851 | } |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 852 | pci_free_consistent(lp->pci_dev, |
| 853 | PAGE_SIZE * FD_PAGE_NUM, |
| 854 | lp->fd_buf, |
| 855 | lp->fd_buf_dma); |
| 856 | lp->fd_buf = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 857 | return -ENOMEM; |
| 858 | } |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 859 | #else |
| 860 | lp->rx_skbs[i].skb = |
| 861 | alloc_rxbuf_skb(dev, lp->pci_dev, |
| 862 | &lp->rx_skbs[i].skb_dma); |
| 863 | if (!lp->rx_skbs[i].skb) { |
| 864 | while (--i >= 0) { |
| 865 | free_rxbuf_skb(lp->pci_dev, |
| 866 | lp->rx_skbs[i].skb, |
| 867 | lp->rx_skbs[i].skb_dma); |
| 868 | lp->rx_skbs[i].skb = NULL; |
| 869 | } |
| 870 | pci_free_consistent(lp->pci_dev, |
| 871 | PAGE_SIZE * FD_PAGE_NUM, |
| 872 | lp->fd_buf, |
| 873 | lp->fd_buf_dma); |
| 874 | lp->fd_buf = NULL; |
| 875 | return -ENOMEM; |
| 876 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 877 | #endif |
| 878 | } |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 879 | printk(KERN_DEBUG "%s: FD buf %p DataBuf", |
| 880 | dev->name, lp->fd_buf); |
| 881 | #ifdef TC35815_USE_PACKEDBUFFER |
| 882 | printk(" DataBuf"); |
| 883 | for (i = 0; i < RX_BUF_NUM; i++) |
| 884 | printk(" %p", lp->data_buf[i]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 885 | #endif |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 886 | printk("\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 887 | } else { |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 888 | for (i = 0; i < FD_PAGE_NUM; i++) { |
| 889 | clear_page((void *)((unsigned long)lp->fd_buf + i * PAGE_SIZE)); |
| 890 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 891 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 892 | fd_addr = (unsigned long)lp->fd_buf; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 893 | |
| 894 | /* Free Descriptors (for Receive) */ |
| 895 | lp->rfd_base = (struct RxFD *)fd_addr; |
| 896 | fd_addr += sizeof(struct RxFD) * RX_FD_NUM; |
| 897 | for (i = 0; i < RX_FD_NUM; i++) { |
| 898 | lp->rfd_base[i].fd.FDCtl = cpu_to_le32(FD_CownsFD); |
| 899 | } |
| 900 | lp->rfd_cur = lp->rfd_base; |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 901 | lp->rfd_limit = (struct RxFD *)fd_addr - (RX_FD_RESERVE + 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 902 | |
| 903 | /* Transmit Descriptors */ |
| 904 | lp->tfd_base = (struct TxFD *)fd_addr; |
| 905 | fd_addr += sizeof(struct TxFD) * TX_FD_NUM; |
| 906 | for (i = 0; i < TX_FD_NUM; i++) { |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 907 | lp->tfd_base[i].fd.FDNext = cpu_to_le32(fd_virt_to_bus(lp, &lp->tfd_base[i+1])); |
| 908 | lp->tfd_base[i].fd.FDSystem = cpu_to_le32(0xffffffff); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 909 | lp->tfd_base[i].fd.FDCtl = cpu_to_le32(0); |
| 910 | } |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 911 | 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] | 912 | lp->tfd_start = 0; |
| 913 | lp->tfd_end = 0; |
| 914 | |
| 915 | /* Buffer List (for Receive) */ |
| 916 | lp->fbl_ptr = (struct FrFD *)fd_addr; |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 917 | lp->fbl_ptr->fd.FDNext = cpu_to_le32(fd_virt_to_bus(lp, lp->fbl_ptr)); |
| 918 | lp->fbl_ptr->fd.FDCtl = cpu_to_le32(RX_BUF_NUM | FD_CownsFD); |
| 919 | #ifndef TC35815_USE_PACKEDBUFFER |
| 920 | /* |
| 921 | * move all allocated skbs to head of rx_skbs[] array. |
| 922 | * fbl_count mighe not be RX_BUF_NUM if alloc_rxbuf_skb() in |
| 923 | * tc35815_rx() had failed. |
| 924 | */ |
| 925 | lp->fbl_count = 0; |
| 926 | for (i = 0; i < RX_BUF_NUM; i++) { |
| 927 | if (lp->rx_skbs[i].skb) { |
| 928 | if (i != lp->fbl_count) { |
| 929 | lp->rx_skbs[lp->fbl_count].skb = |
| 930 | lp->rx_skbs[i].skb; |
| 931 | lp->rx_skbs[lp->fbl_count].skb_dma = |
| 932 | lp->rx_skbs[i].skb_dma; |
| 933 | } |
| 934 | lp->fbl_count++; |
| 935 | } |
| 936 | } |
| 937 | #endif |
| 938 | for (i = 0; i < RX_BUF_NUM; i++) { |
| 939 | #ifdef TC35815_USE_PACKEDBUFFER |
| 940 | lp->fbl_ptr->bd[i].BuffData = cpu_to_le32(lp->data_buf_dma[i]); |
| 941 | #else |
| 942 | if (i >= lp->fbl_count) { |
| 943 | lp->fbl_ptr->bd[i].BuffData = 0; |
| 944 | lp->fbl_ptr->bd[i].BDCtl = 0; |
| 945 | continue; |
| 946 | } |
| 947 | lp->fbl_ptr->bd[i].BuffData = |
| 948 | cpu_to_le32(lp->rx_skbs[i].skb_dma); |
| 949 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 950 | /* BDID is index of FrFD.bd[] */ |
| 951 | lp->fbl_ptr->bd[i].BDCtl = |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 952 | cpu_to_le32(BD_CownsBD | (i << BD_RxBDID_SHIFT) | |
| 953 | RX_BUF_SIZE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 954 | } |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 955 | #ifdef TC35815_USE_PACKEDBUFFER |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 956 | lp->fbl_curid = 0; |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 957 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 958 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 959 | printk(KERN_DEBUG "%s: TxFD %p RxFD %p FrFD %p\n", |
| 960 | dev->name, lp->tfd_base, lp->rfd_base, lp->fbl_ptr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 961 | return 0; |
| 962 | } |
| 963 | |
| 964 | static void |
| 965 | tc35815_clear_queues(struct net_device *dev) |
| 966 | { |
| 967 | struct tc35815_local *lp = dev->priv; |
| 968 | int i; |
| 969 | |
| 970 | for (i = 0; i < TX_FD_NUM; i++) { |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 971 | u32 fdsystem = le32_to_cpu(lp->tfd_base[i].fd.FDSystem); |
| 972 | struct sk_buff *skb = |
| 973 | fdsystem != 0xffffffff ? |
| 974 | lp->tx_skbs[fdsystem].skb : NULL; |
| 975 | #ifdef DEBUG |
| 976 | if (lp->tx_skbs[i].skb != skb) { |
| 977 | printk("%s: tx_skbs mismatch(%d).\n", dev->name, i); |
| 978 | panic_queues(dev); |
| 979 | } |
| 980 | #else |
| 981 | BUG_ON(lp->tx_skbs[i].skb != skb); |
| 982 | #endif |
| 983 | if (skb) { |
| 984 | pci_unmap_single(lp->pci_dev, lp->tx_skbs[i].skb_dma, skb->len, PCI_DMA_TODEVICE); |
| 985 | lp->tx_skbs[i].skb = NULL; |
| 986 | lp->tx_skbs[i].skb_dma = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 987 | dev_kfree_skb_any(skb); |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 988 | } |
| 989 | lp->tfd_base[i].fd.FDSystem = cpu_to_le32(0xffffffff); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 990 | } |
| 991 | |
| 992 | tc35815_init_queues(dev); |
| 993 | } |
| 994 | |
| 995 | static void |
| 996 | tc35815_free_queues(struct net_device *dev) |
| 997 | { |
| 998 | struct tc35815_local *lp = dev->priv; |
| 999 | int i; |
| 1000 | |
| 1001 | if (lp->tfd_base) { |
| 1002 | for (i = 0; i < TX_FD_NUM; i++) { |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1003 | u32 fdsystem = le32_to_cpu(lp->tfd_base[i].fd.FDSystem); |
| 1004 | struct sk_buff *skb = |
| 1005 | fdsystem != 0xffffffff ? |
| 1006 | lp->tx_skbs[fdsystem].skb : NULL; |
| 1007 | #ifdef DEBUG |
| 1008 | if (lp->tx_skbs[i].skb != skb) { |
| 1009 | printk("%s: tx_skbs mismatch(%d).\n", dev->name, i); |
| 1010 | panic_queues(dev); |
| 1011 | } |
| 1012 | #else |
| 1013 | BUG_ON(lp->tx_skbs[i].skb != skb); |
| 1014 | #endif |
| 1015 | if (skb) { |
| 1016 | dev_kfree_skb(skb); |
| 1017 | pci_unmap_single(lp->pci_dev, lp->tx_skbs[i].skb_dma, skb->len, PCI_DMA_TODEVICE); |
| 1018 | lp->tx_skbs[i].skb = NULL; |
| 1019 | lp->tx_skbs[i].skb_dma = 0; |
| 1020 | } |
| 1021 | lp->tfd_base[i].fd.FDSystem = cpu_to_le32(0xffffffff); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1022 | } |
| 1023 | } |
| 1024 | |
| 1025 | lp->rfd_base = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1026 | lp->rfd_limit = NULL; |
| 1027 | lp->rfd_cur = NULL; |
| 1028 | lp->fbl_ptr = NULL; |
| 1029 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1030 | for (i = 0; i < RX_BUF_NUM; i++) { |
| 1031 | #ifdef TC35815_USE_PACKEDBUFFER |
| 1032 | if (lp->data_buf[i]) { |
| 1033 | free_rxbuf_page(lp->pci_dev, |
| 1034 | lp->data_buf[i], lp->data_buf_dma[i]); |
| 1035 | lp->data_buf[i] = NULL; |
| 1036 | } |
| 1037 | #else |
| 1038 | if (lp->rx_skbs[i].skb) { |
| 1039 | free_rxbuf_skb(lp->pci_dev, lp->rx_skbs[i].skb, |
| 1040 | lp->rx_skbs[i].skb_dma); |
| 1041 | lp->rx_skbs[i].skb = NULL; |
| 1042 | } |
| 1043 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1044 | } |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1045 | if (lp->fd_buf) { |
| 1046 | pci_free_consistent(lp->pci_dev, PAGE_SIZE * FD_PAGE_NUM, |
| 1047 | lp->fd_buf, lp->fd_buf_dma); |
| 1048 | lp->fd_buf = NULL; |
| 1049 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1050 | } |
| 1051 | |
| 1052 | static void |
| 1053 | dump_txfd(struct TxFD *fd) |
| 1054 | { |
| 1055 | printk("TxFD(%p): %08x %08x %08x %08x\n", fd, |
| 1056 | le32_to_cpu(fd->fd.FDNext), |
| 1057 | le32_to_cpu(fd->fd.FDSystem), |
| 1058 | le32_to_cpu(fd->fd.FDStat), |
| 1059 | le32_to_cpu(fd->fd.FDCtl)); |
| 1060 | printk("BD: "); |
| 1061 | printk(" %08x %08x", |
| 1062 | le32_to_cpu(fd->bd.BuffData), |
| 1063 | le32_to_cpu(fd->bd.BDCtl)); |
| 1064 | printk("\n"); |
| 1065 | } |
| 1066 | |
| 1067 | static int |
| 1068 | dump_rxfd(struct RxFD *fd) |
| 1069 | { |
| 1070 | int i, bd_count = (le32_to_cpu(fd->fd.FDCtl) & FD_BDCnt_MASK) >> FD_BDCnt_SHIFT; |
| 1071 | if (bd_count > 8) |
| 1072 | bd_count = 8; |
| 1073 | printk("RxFD(%p): %08x %08x %08x %08x\n", fd, |
| 1074 | le32_to_cpu(fd->fd.FDNext), |
| 1075 | le32_to_cpu(fd->fd.FDSystem), |
| 1076 | le32_to_cpu(fd->fd.FDStat), |
| 1077 | le32_to_cpu(fd->fd.FDCtl)); |
| 1078 | if (le32_to_cpu(fd->fd.FDCtl) & FD_CownsFD) |
| 1079 | return 0; |
| 1080 | printk("BD: "); |
| 1081 | for (i = 0; i < bd_count; i++) |
| 1082 | printk(" %08x %08x", |
| 1083 | le32_to_cpu(fd->bd[i].BuffData), |
| 1084 | le32_to_cpu(fd->bd[i].BDCtl)); |
| 1085 | printk("\n"); |
| 1086 | return bd_count; |
| 1087 | } |
| 1088 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1089 | #if defined(DEBUG) || defined(TC35815_USE_PACKEDBUFFER) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1090 | static void |
| 1091 | dump_frfd(struct FrFD *fd) |
| 1092 | { |
| 1093 | int i; |
| 1094 | printk("FrFD(%p): %08x %08x %08x %08x\n", fd, |
| 1095 | le32_to_cpu(fd->fd.FDNext), |
| 1096 | le32_to_cpu(fd->fd.FDSystem), |
| 1097 | le32_to_cpu(fd->fd.FDStat), |
| 1098 | le32_to_cpu(fd->fd.FDCtl)); |
| 1099 | printk("BD: "); |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1100 | for (i = 0; i < RX_BUF_NUM; i++) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1101 | printk(" %08x %08x", |
| 1102 | le32_to_cpu(fd->bd[i].BuffData), |
| 1103 | le32_to_cpu(fd->bd[i].BDCtl)); |
| 1104 | printk("\n"); |
| 1105 | } |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1106 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1107 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1108 | #ifdef DEBUG |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1109 | static void |
| 1110 | panic_queues(struct net_device *dev) |
| 1111 | { |
| 1112 | struct tc35815_local *lp = dev->priv; |
| 1113 | int i; |
| 1114 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1115 | printk("TxFD base %p, start %u, end %u\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1116 | lp->tfd_base, lp->tfd_start, lp->tfd_end); |
| 1117 | printk("RxFD base %p limit %p cur %p\n", |
| 1118 | lp->rfd_base, lp->rfd_limit, lp->rfd_cur); |
| 1119 | printk("FrFD %p\n", lp->fbl_ptr); |
| 1120 | for (i = 0; i < TX_FD_NUM; i++) |
| 1121 | dump_txfd(&lp->tfd_base[i]); |
| 1122 | for (i = 0; i < RX_FD_NUM; i++) { |
| 1123 | int bd_count = dump_rxfd(&lp->rfd_base[i]); |
| 1124 | i += (bd_count + 1) / 2; /* skip BDs */ |
| 1125 | } |
| 1126 | dump_frfd(lp->fbl_ptr); |
| 1127 | panic("%s: Illegal queue state.", dev->name); |
| 1128 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1129 | #endif |
| 1130 | |
| 1131 | static void print_eth(char *add) |
| 1132 | { |
| 1133 | int i; |
| 1134 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1135 | printk("print_eth(%p)\n", add); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1136 | for (i = 0; i < 6; i++) |
| 1137 | printk(" %2.2X", (unsigned char) add[i + 6]); |
| 1138 | printk(" =>"); |
| 1139 | for (i = 0; i < 6; i++) |
| 1140 | printk(" %2.2X", (unsigned char) add[i]); |
| 1141 | printk(" : %2.2X%2.2X\n", (unsigned char) add[12], (unsigned char) add[13]); |
| 1142 | } |
| 1143 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1144 | static int tc35815_tx_full(struct net_device *dev) |
| 1145 | { |
| 1146 | struct tc35815_local *lp = dev->priv; |
| 1147 | return ((lp->tfd_start + 1) % TX_FD_NUM == lp->tfd_end); |
| 1148 | } |
| 1149 | |
| 1150 | static void tc35815_restart(struct net_device *dev) |
| 1151 | { |
| 1152 | struct tc35815_local *lp = dev->priv; |
| 1153 | int pid = lp->phy_addr; |
| 1154 | int do_phy_reset = 1; |
| 1155 | del_timer(&lp->timer); /* Kill if running */ |
| 1156 | |
| 1157 | if (lp->mii_id[0] == 0x0016 && (lp->mii_id[1] & 0xfc00) == 0xf800) { |
| 1158 | /* Resetting PHY cause problem on some chip... (SEEQ 80221) */ |
| 1159 | do_phy_reset = 0; |
| 1160 | } |
| 1161 | if (do_phy_reset) { |
| 1162 | int timeout; |
| 1163 | tc_mdio_write(dev, pid, MII_BMCR, BMCR_RESET); |
| 1164 | timeout = 100; |
| 1165 | while (--timeout) { |
| 1166 | if (!(tc_mdio_read(dev, pid, MII_BMCR) & BMCR_RESET)) |
| 1167 | break; |
| 1168 | udelay(1); |
| 1169 | } |
| 1170 | if (!timeout) |
| 1171 | printk(KERN_ERR "%s: BMCR reset failed.\n", dev->name); |
| 1172 | } |
| 1173 | |
| 1174 | tc35815_chip_reset(dev); |
| 1175 | tc35815_clear_queues(dev); |
| 1176 | tc35815_chip_init(dev); |
| 1177 | /* Reconfigure CAM again since tc35815_chip_init() initialize it. */ |
| 1178 | tc35815_set_multicast_list(dev); |
| 1179 | } |
| 1180 | |
| 1181 | static void tc35815_tx_timeout(struct net_device *dev) |
| 1182 | { |
| 1183 | struct tc35815_local *lp = dev->priv; |
| 1184 | struct tc35815_regs __iomem *tr = |
| 1185 | (struct tc35815_regs __iomem *)dev->base_addr; |
| 1186 | |
| 1187 | printk(KERN_WARNING "%s: transmit timed out, status %#x\n", |
| 1188 | dev->name, tc_readl(&tr->Tx_Stat)); |
| 1189 | |
| 1190 | /* Try to restart the adaptor. */ |
| 1191 | spin_lock_irq(&lp->lock); |
| 1192 | tc35815_restart(dev); |
| 1193 | spin_unlock_irq(&lp->lock); |
| 1194 | |
| 1195 | lp->stats.tx_errors++; |
| 1196 | |
| 1197 | /* If we have space available to accept new transmit |
| 1198 | * requests, wake up the queueing layer. This would |
| 1199 | * be the case if the chipset_init() call above just |
| 1200 | * flushes out the tx queue and empties it. |
| 1201 | * |
| 1202 | * If instead, the tx queue is retained then the |
| 1203 | * netif_wake_queue() call should be placed in the |
| 1204 | * TX completion interrupt handler of the driver instead |
| 1205 | * of here. |
| 1206 | */ |
| 1207 | if (!tc35815_tx_full(dev)) |
| 1208 | netif_wake_queue(dev); |
| 1209 | } |
| 1210 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1211 | /* |
| 1212 | * Open/initialize the board. This is called (in the current kernel) |
| 1213 | * sometime after booting when the 'ifconfig' program is run. |
| 1214 | * |
| 1215 | * This routine should set everything up anew at each open, even |
| 1216 | * registers that "should" only need to be set once at boot, so that |
| 1217 | * there is non-reboot way to recover if something goes wrong. |
| 1218 | */ |
| 1219 | static int |
| 1220 | tc35815_open(struct net_device *dev) |
| 1221 | { |
| 1222 | struct tc35815_local *lp = dev->priv; |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1223 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1224 | /* |
| 1225 | * This is used if the interrupt line can turned off (shared). |
| 1226 | * See 3c503.c for an example of selecting the IRQ at config-time. |
| 1227 | */ |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1228 | if (request_irq(dev->irq, &tc35815_interrupt, IRQF_SHARED, dev->name, dev)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1229 | return -EAGAIN; |
| 1230 | } |
| 1231 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1232 | del_timer(&lp->timer); /* Kill if running */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1233 | tc35815_chip_reset(dev); |
| 1234 | |
| 1235 | if (tc35815_init_queues(dev) != 0) { |
| 1236 | free_irq(dev->irq, dev); |
| 1237 | return -EAGAIN; |
| 1238 | } |
| 1239 | |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 1240 | #ifdef TC35815_NAPI |
| 1241 | napi_enable(&lp->napi); |
| 1242 | #endif |
| 1243 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1244 | /* Reset the hardware here. Don't forget to set the station address. */ |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1245 | spin_lock_irq(&lp->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1246 | tc35815_chip_init(dev); |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1247 | spin_unlock_irq(&lp->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1248 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1249 | /* We are now ready to accept transmit requeusts from |
| 1250 | * the queueing layer of the networking. |
| 1251 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1252 | netif_start_queue(dev); |
| 1253 | |
| 1254 | return 0; |
| 1255 | } |
| 1256 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1257 | /* This will only be invoked if your driver is _not_ in XOFF state. |
| 1258 | * What this means is that you need not check it, and that this |
| 1259 | * invariant will hold if you make sure that the netif_*_queue() |
| 1260 | * calls are done at the proper times. |
| 1261 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1262 | static int tc35815_send_packet(struct sk_buff *skb, struct net_device *dev) |
| 1263 | { |
| 1264 | struct tc35815_local *lp = dev->priv; |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1265 | struct TxFD *txfd; |
| 1266 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1267 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1268 | /* If some error occurs while trying to transmit this |
| 1269 | * packet, you should return '1' from this function. |
| 1270 | * In such a case you _may not_ do anything to the |
| 1271 | * SKB, it is still owned by the network queueing |
| 1272 | * layer when an error is returned. This means you |
| 1273 | * may not modify any SKB fields, you may not free |
| 1274 | * the SKB, etc. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1275 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1276 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1277 | /* This is the most common case for modern hardware. |
| 1278 | * The spinlock protects this code from the TX complete |
| 1279 | * hardware interrupt handler. Queue flow control is |
| 1280 | * thus managed under this lock as well. |
| 1281 | */ |
| 1282 | spin_lock_irqsave(&lp->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1283 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1284 | /* failsafe... (handle txdone now if half of FDs are used) */ |
| 1285 | if ((lp->tfd_start + TX_FD_NUM - lp->tfd_end) % TX_FD_NUM > |
| 1286 | TX_FD_NUM / 2) |
| 1287 | tc35815_txdone(dev); |
| 1288 | |
| 1289 | if (netif_msg_pktdata(lp)) |
| 1290 | print_eth(skb->data); |
| 1291 | #ifdef DEBUG |
| 1292 | if (lp->tx_skbs[lp->tfd_start].skb) { |
| 1293 | printk("%s: tx_skbs conflict.\n", dev->name); |
| 1294 | panic_queues(dev); |
| 1295 | } |
| 1296 | #else |
| 1297 | BUG_ON(lp->tx_skbs[lp->tfd_start].skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1298 | #endif |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1299 | lp->tx_skbs[lp->tfd_start].skb = skb; |
| 1300 | 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] | 1301 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1302 | /*add to ring */ |
| 1303 | txfd = &lp->tfd_base[lp->tfd_start]; |
| 1304 | txfd->bd.BuffData = cpu_to_le32(lp->tx_skbs[lp->tfd_start].skb_dma); |
| 1305 | txfd->bd.BDCtl = cpu_to_le32(skb->len); |
| 1306 | txfd->fd.FDSystem = cpu_to_le32(lp->tfd_start); |
| 1307 | txfd->fd.FDCtl = cpu_to_le32(FD_CownsFD | (1 << FD_BDCnt_SHIFT)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1308 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1309 | if (lp->tfd_start == lp->tfd_end) { |
| 1310 | struct tc35815_regs __iomem *tr = |
| 1311 | (struct tc35815_regs __iomem *)dev->base_addr; |
| 1312 | /* Start DMA Transmitter. */ |
| 1313 | txfd->fd.FDNext |= cpu_to_le32(FD_Next_EOL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1314 | #ifdef GATHER_TXINT |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1315 | txfd->fd.FDCtl |= cpu_to_le32(FD_FrmOpt_IntTx); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1316 | #endif |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1317 | if (netif_msg_tx_queued(lp)) { |
| 1318 | printk("%s: starting TxFD.\n", dev->name); |
| 1319 | dump_txfd(txfd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1320 | } |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1321 | tc_writel(fd_virt_to_bus(lp, txfd), &tr->TxFrmPtr); |
| 1322 | } else { |
| 1323 | txfd->fd.FDNext &= cpu_to_le32(~FD_Next_EOL); |
| 1324 | if (netif_msg_tx_queued(lp)) { |
| 1325 | printk("%s: queueing TxFD.\n", dev->name); |
| 1326 | dump_txfd(txfd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1327 | } |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1328 | } |
| 1329 | lp->tfd_start = (lp->tfd_start + 1) % TX_FD_NUM; |
| 1330 | |
| 1331 | dev->trans_start = jiffies; |
| 1332 | |
| 1333 | /* If we just used up the very last entry in the |
| 1334 | * TX ring on this device, tell the queueing |
| 1335 | * layer to send no more. |
| 1336 | */ |
| 1337 | if (tc35815_tx_full(dev)) { |
| 1338 | if (netif_msg_tx_queued(lp)) |
| 1339 | printk(KERN_WARNING "%s: TxFD Exhausted.\n", dev->name); |
| 1340 | netif_stop_queue(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1341 | } |
| 1342 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1343 | /* When the TX completion hw interrupt arrives, this |
| 1344 | * is when the transmit statistics are updated. |
| 1345 | */ |
| 1346 | |
| 1347 | spin_unlock_irqrestore(&lp->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1348 | return 0; |
| 1349 | } |
| 1350 | |
| 1351 | #define FATAL_ERROR_INT \ |
| 1352 | (Int_IntPCI | Int_DmParErr | Int_IntNRAbt) |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1353 | static void tc35815_fatal_error_interrupt(struct net_device *dev, u32 status) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1354 | { |
| 1355 | static int count; |
| 1356 | printk(KERN_WARNING "%s: Fatal Error Intterrupt (%#x):", |
| 1357 | dev->name, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1358 | if (status & Int_IntPCI) |
| 1359 | printk(" IntPCI"); |
| 1360 | if (status & Int_DmParErr) |
| 1361 | printk(" DmParErr"); |
| 1362 | if (status & Int_IntNRAbt) |
| 1363 | printk(" IntNRAbt"); |
| 1364 | printk("\n"); |
| 1365 | if (count++ > 100) |
| 1366 | panic("%s: Too many fatal errors.", dev->name); |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1367 | printk(KERN_WARNING "%s: Resetting ...\n", dev->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1368 | /* Try to restart the adaptor. */ |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1369 | tc35815_restart(dev); |
| 1370 | } |
| 1371 | |
| 1372 | #ifdef TC35815_NAPI |
| 1373 | static int tc35815_do_interrupt(struct net_device *dev, u32 status, int limit) |
| 1374 | #else |
| 1375 | static int tc35815_do_interrupt(struct net_device *dev, u32 status) |
| 1376 | #endif |
| 1377 | { |
| 1378 | struct tc35815_local *lp = dev->priv; |
| 1379 | struct tc35815_regs __iomem *tr = |
| 1380 | (struct tc35815_regs __iomem *)dev->base_addr; |
| 1381 | int ret = -1; |
| 1382 | |
| 1383 | /* Fatal errors... */ |
| 1384 | if (status & FATAL_ERROR_INT) { |
| 1385 | tc35815_fatal_error_interrupt(dev, status); |
| 1386 | return 0; |
| 1387 | } |
| 1388 | /* recoverable errors */ |
| 1389 | if (status & Int_IntFDAEx) { |
| 1390 | /* disable FDAEx int. (until we make rooms...) */ |
| 1391 | tc_writel(tc_readl(&tr->Int_En) & ~Int_FDAExEn, &tr->Int_En); |
| 1392 | printk(KERN_WARNING |
| 1393 | "%s: Free Descriptor Area Exhausted (%#x).\n", |
| 1394 | dev->name, status); |
| 1395 | lp->stats.rx_dropped++; |
| 1396 | ret = 0; |
| 1397 | } |
| 1398 | if (status & Int_IntBLEx) { |
| 1399 | /* disable BLEx int. (until we make rooms...) */ |
| 1400 | tc_writel(tc_readl(&tr->Int_En) & ~Int_BLExEn, &tr->Int_En); |
| 1401 | printk(KERN_WARNING |
| 1402 | "%s: Buffer List Exhausted (%#x).\n", |
| 1403 | dev->name, status); |
| 1404 | lp->stats.rx_dropped++; |
| 1405 | ret = 0; |
| 1406 | } |
| 1407 | if (status & Int_IntExBD) { |
| 1408 | printk(KERN_WARNING |
| 1409 | "%s: Excessive Buffer Descriptiors (%#x).\n", |
| 1410 | dev->name, status); |
| 1411 | lp->stats.rx_length_errors++; |
| 1412 | ret = 0; |
| 1413 | } |
| 1414 | |
| 1415 | /* normal notification */ |
| 1416 | if (status & Int_IntMacRx) { |
| 1417 | /* Got a packet(s). */ |
| 1418 | #ifdef TC35815_NAPI |
| 1419 | ret = tc35815_rx(dev, limit); |
| 1420 | #else |
| 1421 | tc35815_rx(dev); |
| 1422 | ret = 0; |
| 1423 | #endif |
| 1424 | lp->lstats.rx_ints++; |
| 1425 | } |
| 1426 | if (status & Int_IntMacTx) { |
| 1427 | /* Transmit complete. */ |
| 1428 | lp->lstats.tx_ints++; |
| 1429 | tc35815_txdone(dev); |
| 1430 | netif_wake_queue(dev); |
| 1431 | ret = 0; |
| 1432 | } |
| 1433 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1434 | } |
| 1435 | |
| 1436 | /* |
| 1437 | * The typical workload of the driver: |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1438 | * Handle the network interface interrupts. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1439 | */ |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 1440 | static irqreturn_t tc35815_interrupt(int irq, void *dev_id) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1441 | { |
| 1442 | struct net_device *dev = dev_id; |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 1443 | struct tc35815_local *lp = netdev_priv(dev); |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1444 | struct tc35815_regs __iomem *tr = |
| 1445 | (struct tc35815_regs __iomem *)dev->base_addr; |
| 1446 | #ifdef TC35815_NAPI |
| 1447 | u32 dmactl = tc_readl(&tr->DMA_Ctl); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1448 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1449 | if (!(dmactl & DMA_IntMask)) { |
| 1450 | /* disable interrupts */ |
| 1451 | tc_writel(dmactl | DMA_IntMask, &tr->DMA_Ctl); |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 1452 | if (netif_rx_schedule_prep(dev, &lp->napi)) |
| 1453 | __netif_rx_schedule(dev, &lp->napi); |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1454 | else { |
| 1455 | printk(KERN_ERR "%s: interrupt taken in poll\n", |
| 1456 | dev->name); |
| 1457 | BUG(); |
| 1458 | } |
| 1459 | (void)tc_readl(&tr->Int_Src); /* flush */ |
| 1460 | return IRQ_HANDLED; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1461 | } |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1462 | return IRQ_NONE; |
| 1463 | #else |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1464 | int handled; |
| 1465 | u32 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1466 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1467 | spin_lock(&lp->lock); |
| 1468 | status = tc_readl(&tr->Int_Src); |
| 1469 | tc_writel(status, &tr->Int_Src); /* write to clear */ |
| 1470 | handled = tc35815_do_interrupt(dev, status); |
| 1471 | (void)tc_readl(&tr->Int_Src); /* flush */ |
| 1472 | spin_unlock(&lp->lock); |
| 1473 | return IRQ_RETVAL(handled >= 0); |
| 1474 | #endif /* TC35815_NAPI */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1475 | } |
| 1476 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1477 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 1478 | static void tc35815_poll_controller(struct net_device *dev) |
| 1479 | { |
| 1480 | disable_irq(dev->irq); |
| 1481 | tc35815_interrupt(dev->irq, dev); |
| 1482 | enable_irq(dev->irq); |
| 1483 | } |
| 1484 | #endif |
| 1485 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1486 | /* We have a good packet(s), get it/them out of the buffers. */ |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1487 | #ifdef TC35815_NAPI |
| 1488 | static int |
| 1489 | tc35815_rx(struct net_device *dev, int limit) |
| 1490 | #else |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1491 | static void |
| 1492 | tc35815_rx(struct net_device *dev) |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1493 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1494 | { |
| 1495 | struct tc35815_local *lp = dev->priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1496 | unsigned int fdctl; |
| 1497 | int i; |
| 1498 | int buf_free_count = 0; |
| 1499 | int fd_free_count = 0; |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1500 | #ifdef TC35815_NAPI |
| 1501 | int received = 0; |
| 1502 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1503 | |
| 1504 | while (!((fdctl = le32_to_cpu(lp->rfd_cur->fd.FDCtl)) & FD_CownsFD)) { |
| 1505 | int status = le32_to_cpu(lp->rfd_cur->fd.FDStat); |
| 1506 | int pkt_len = fdctl & FD_FDLength_MASK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1507 | int bd_count = (fdctl & FD_BDCnt_MASK) >> FD_BDCnt_SHIFT; |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1508 | #ifdef DEBUG |
| 1509 | struct RxFD *next_rfd; |
| 1510 | #endif |
| 1511 | #if (RX_CTL_CMD & Rx_StripCRC) == 0 |
| 1512 | pkt_len -= 4; |
| 1513 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1514 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1515 | if (netif_msg_rx_status(lp)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1516 | dump_rxfd(lp->rfd_cur); |
| 1517 | if (status & Rx_Good) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1518 | struct sk_buff *skb; |
| 1519 | unsigned char *data; |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1520 | int cur_bd; |
| 1521 | #ifdef TC35815_USE_PACKEDBUFFER |
| 1522 | int offset; |
| 1523 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1524 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1525 | #ifdef TC35815_NAPI |
| 1526 | if (--limit < 0) |
| 1527 | break; |
| 1528 | #endif |
| 1529 | #ifdef TC35815_USE_PACKEDBUFFER |
| 1530 | BUG_ON(bd_count > 2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1531 | skb = dev_alloc_skb(pkt_len + 2); /* +2: for reserve */ |
| 1532 | if (skb == NULL) { |
| 1533 | printk(KERN_NOTICE "%s: Memory squeeze, dropping packet.\n", |
| 1534 | dev->name); |
| 1535 | lp->stats.rx_dropped++; |
| 1536 | break; |
| 1537 | } |
| 1538 | skb_reserve(skb, 2); /* 16 bit alignment */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1539 | |
| 1540 | data = skb_put(skb, pkt_len); |
| 1541 | |
| 1542 | /* copy from receive buffer */ |
| 1543 | cur_bd = 0; |
| 1544 | offset = 0; |
| 1545 | while (offset < pkt_len && cur_bd < bd_count) { |
| 1546 | int len = le32_to_cpu(lp->rfd_cur->bd[cur_bd].BDCtl) & |
| 1547 | BD_BuffLength_MASK; |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1548 | dma_addr_t dma = le32_to_cpu(lp->rfd_cur->bd[cur_bd].BuffData); |
| 1549 | void *rxbuf = rxbuf_bus_to_virt(lp, dma); |
| 1550 | if (offset + len > pkt_len) |
| 1551 | len = pkt_len - offset; |
| 1552 | #ifdef TC35815_DMA_SYNC_ONDEMAND |
| 1553 | pci_dma_sync_single_for_cpu(lp->pci_dev, |
| 1554 | dma, len, |
| 1555 | PCI_DMA_FROMDEVICE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1556 | #endif |
| 1557 | memcpy(data + offset, rxbuf, len); |
Atsushi Nemoto | 793bc0a | 2007-03-14 01:02:20 +0900 | [diff] [blame] | 1558 | #ifdef TC35815_DMA_SYNC_ONDEMAND |
| 1559 | pci_dma_sync_single_for_device(lp->pci_dev, |
| 1560 | dma, len, |
| 1561 | PCI_DMA_FROMDEVICE); |
| 1562 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1563 | offset += len; |
| 1564 | cur_bd++; |
| 1565 | } |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1566 | #else /* TC35815_USE_PACKEDBUFFER */ |
| 1567 | BUG_ON(bd_count > 1); |
| 1568 | cur_bd = (le32_to_cpu(lp->rfd_cur->bd[0].BDCtl) |
| 1569 | & BD_RxBDID_MASK) >> BD_RxBDID_SHIFT; |
| 1570 | #ifdef DEBUG |
| 1571 | if (cur_bd >= RX_BUF_NUM) { |
| 1572 | printk("%s: invalid BDID.\n", dev->name); |
| 1573 | panic_queues(dev); |
| 1574 | } |
| 1575 | BUG_ON(lp->rx_skbs[cur_bd].skb_dma != |
| 1576 | (le32_to_cpu(lp->rfd_cur->bd[0].BuffData) & ~3)); |
| 1577 | if (!lp->rx_skbs[cur_bd].skb) { |
| 1578 | printk("%s: NULL skb.\n", dev->name); |
| 1579 | panic_queues(dev); |
| 1580 | } |
| 1581 | #else |
| 1582 | BUG_ON(cur_bd >= RX_BUF_NUM); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1583 | #endif |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1584 | skb = lp->rx_skbs[cur_bd].skb; |
| 1585 | prefetch(skb->data); |
| 1586 | lp->rx_skbs[cur_bd].skb = NULL; |
| 1587 | lp->fbl_count--; |
| 1588 | pci_unmap_single(lp->pci_dev, |
| 1589 | lp->rx_skbs[cur_bd].skb_dma, |
| 1590 | RX_BUF_SIZE, PCI_DMA_FROMDEVICE); |
| 1591 | if (!HAVE_DMA_RXALIGN(lp)) |
| 1592 | memmove(skb->data, skb->data - 2, pkt_len); |
| 1593 | data = skb_put(skb, pkt_len); |
| 1594 | #endif /* TC35815_USE_PACKEDBUFFER */ |
| 1595 | if (netif_msg_pktdata(lp)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1596 | print_eth(data); |
| 1597 | skb->protocol = eth_type_trans(skb, dev); |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1598 | #ifdef TC35815_NAPI |
| 1599 | netif_receive_skb(skb); |
| 1600 | received++; |
| 1601 | #else |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1602 | netif_rx(skb); |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1603 | #endif |
| 1604 | dev->last_rx = jiffies; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1605 | lp->stats.rx_packets++; |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1606 | lp->stats.rx_bytes += pkt_len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1607 | } else { |
| 1608 | lp->stats.rx_errors++; |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1609 | printk(KERN_DEBUG "%s: Rx error (status %x)\n", |
| 1610 | dev->name, status & Rx_Stat_Mask); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1611 | /* WORKAROUND: LongErr and CRCErr means Overflow. */ |
| 1612 | if ((status & Rx_LongErr) && (status & Rx_CRCErr)) { |
| 1613 | status &= ~(Rx_LongErr|Rx_CRCErr); |
| 1614 | status |= Rx_Over; |
| 1615 | } |
| 1616 | if (status & Rx_LongErr) lp->stats.rx_length_errors++; |
| 1617 | if (status & Rx_Over) lp->stats.rx_fifo_errors++; |
| 1618 | if (status & Rx_CRCErr) lp->stats.rx_crc_errors++; |
| 1619 | if (status & Rx_Align) lp->stats.rx_frame_errors++; |
| 1620 | } |
| 1621 | |
| 1622 | if (bd_count > 0) { |
| 1623 | /* put Free Buffer back to controller */ |
| 1624 | int bdctl = le32_to_cpu(lp->rfd_cur->bd[bd_count - 1].BDCtl); |
| 1625 | unsigned char id = |
| 1626 | (bdctl & BD_RxBDID_MASK) >> BD_RxBDID_SHIFT; |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1627 | #ifdef DEBUG |
| 1628 | if (id >= RX_BUF_NUM) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1629 | printk("%s: invalid BDID.\n", dev->name); |
| 1630 | panic_queues(dev); |
| 1631 | } |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1632 | #else |
| 1633 | BUG_ON(id >= RX_BUF_NUM); |
| 1634 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1635 | /* free old buffers */ |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1636 | #ifdef TC35815_USE_PACKEDBUFFER |
| 1637 | while (lp->fbl_curid != id) |
| 1638 | #else |
| 1639 | while (lp->fbl_count < RX_BUF_NUM) |
| 1640 | #endif |
| 1641 | { |
| 1642 | #ifdef TC35815_USE_PACKEDBUFFER |
| 1643 | unsigned char curid = lp->fbl_curid; |
| 1644 | #else |
| 1645 | unsigned char curid = |
| 1646 | (id + 1 + lp->fbl_count) % RX_BUF_NUM; |
| 1647 | #endif |
| 1648 | struct BDesc *bd = &lp->fbl_ptr->bd[curid]; |
| 1649 | #ifdef DEBUG |
| 1650 | bdctl = le32_to_cpu(bd->BDCtl); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1651 | if (bdctl & BD_CownsBD) { |
| 1652 | printk("%s: Freeing invalid BD.\n", |
| 1653 | dev->name); |
| 1654 | panic_queues(dev); |
| 1655 | } |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1656 | #endif |
Robert P. J. Day | 3a4fa0a | 2007-10-19 23:10:43 +0200 | [diff] [blame] | 1657 | /* pass BD to controller */ |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1658 | #ifndef TC35815_USE_PACKEDBUFFER |
| 1659 | if (!lp->rx_skbs[curid].skb) { |
| 1660 | lp->rx_skbs[curid].skb = |
| 1661 | alloc_rxbuf_skb(dev, |
| 1662 | lp->pci_dev, |
| 1663 | &lp->rx_skbs[curid].skb_dma); |
| 1664 | if (!lp->rx_skbs[curid].skb) |
| 1665 | break; /* try on next reception */ |
| 1666 | bd->BuffData = cpu_to_le32(lp->rx_skbs[curid].skb_dma); |
| 1667 | } |
| 1668 | #endif /* TC35815_USE_PACKEDBUFFER */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1669 | /* Note: BDLength was modified by chip. */ |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1670 | bd->BDCtl = cpu_to_le32(BD_CownsBD | |
| 1671 | (curid << BD_RxBDID_SHIFT) | |
| 1672 | RX_BUF_SIZE); |
| 1673 | #ifdef TC35815_USE_PACKEDBUFFER |
| 1674 | lp->fbl_curid = (curid + 1) % RX_BUF_NUM; |
| 1675 | if (netif_msg_rx_status(lp)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1676 | printk("%s: Entering new FBD %d\n", |
| 1677 | dev->name, lp->fbl_curid); |
| 1678 | dump_frfd(lp->fbl_ptr); |
| 1679 | } |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1680 | #else |
| 1681 | lp->fbl_count++; |
| 1682 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1683 | buf_free_count++; |
| 1684 | } |
| 1685 | } |
| 1686 | |
| 1687 | /* put RxFD back to controller */ |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1688 | #ifdef DEBUG |
| 1689 | next_rfd = fd_bus_to_virt(lp, |
| 1690 | le32_to_cpu(lp->rfd_cur->fd.FDNext)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1691 | if (next_rfd < lp->rfd_base || next_rfd > lp->rfd_limit) { |
| 1692 | printk("%s: RxFD FDNext invalid.\n", dev->name); |
| 1693 | panic_queues(dev); |
| 1694 | } |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1695 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1696 | for (i = 0; i < (bd_count + 1) / 2 + 1; i++) { |
Robert P. J. Day | 3a4fa0a | 2007-10-19 23:10:43 +0200 | [diff] [blame] | 1697 | /* pass FD to controller */ |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1698 | #ifdef DEBUG |
| 1699 | lp->rfd_cur->fd.FDNext = cpu_to_le32(0xdeaddead); |
| 1700 | #else |
| 1701 | lp->rfd_cur->fd.FDNext = cpu_to_le32(FD_Next_EOL); |
| 1702 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1703 | lp->rfd_cur->fd.FDCtl = cpu_to_le32(FD_CownsFD); |
| 1704 | lp->rfd_cur++; |
| 1705 | fd_free_count++; |
| 1706 | } |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1707 | if (lp->rfd_cur > lp->rfd_limit) |
| 1708 | lp->rfd_cur = lp->rfd_base; |
| 1709 | #ifdef DEBUG |
| 1710 | if (lp->rfd_cur != next_rfd) |
| 1711 | printk("rfd_cur = %p, next_rfd %p\n", |
| 1712 | lp->rfd_cur, next_rfd); |
| 1713 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1714 | } |
| 1715 | |
| 1716 | /* re-enable BL/FDA Exhaust interrupts. */ |
| 1717 | if (fd_free_count) { |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1718 | struct tc35815_regs __iomem *tr = |
| 1719 | (struct tc35815_regs __iomem *)dev->base_addr; |
| 1720 | u32 en, en_old = tc_readl(&tr->Int_En); |
| 1721 | en = en_old | Int_FDAExEn; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1722 | if (buf_free_count) |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1723 | en |= Int_BLExEn; |
| 1724 | if (en != en_old) |
| 1725 | tc_writel(en, &tr->Int_En); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1726 | } |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1727 | #ifdef TC35815_NAPI |
| 1728 | return received; |
| 1729 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1730 | } |
| 1731 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1732 | #ifdef TC35815_NAPI |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 1733 | static int tc35815_poll(struct napi_struct *napi, int budget) |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1734 | { |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 1735 | struct tc35815_local *lp = container_of(napi, struct tc35815_local, napi); |
| 1736 | struct net_device *dev = lp->dev; |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1737 | struct tc35815_regs __iomem *tr = |
| 1738 | (struct tc35815_regs __iomem *)dev->base_addr; |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1739 | int received = 0, handled; |
| 1740 | u32 status; |
| 1741 | |
| 1742 | spin_lock(&lp->lock); |
| 1743 | status = tc_readl(&tr->Int_Src); |
| 1744 | do { |
| 1745 | tc_writel(status, &tr->Int_Src); /* write to clear */ |
| 1746 | |
| 1747 | handled = tc35815_do_interrupt(dev, status, limit); |
| 1748 | if (handled >= 0) { |
| 1749 | received += handled; |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 1750 | if (received >= budget) |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1751 | break; |
| 1752 | } |
| 1753 | status = tc_readl(&tr->Int_Src); |
| 1754 | } while (status); |
| 1755 | spin_unlock(&lp->lock); |
| 1756 | |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 1757 | if (received < budget) { |
| 1758 | netif_rx_complete(dev, napi); |
| 1759 | /* enable interrupts */ |
| 1760 | tc_writel(tc_readl(&tr->DMA_Ctl) & ~DMA_IntMask, &tr->DMA_Ctl); |
| 1761 | } |
| 1762 | return received; |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1763 | } |
| 1764 | #endif |
| 1765 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1766 | #ifdef NO_CHECK_CARRIER |
| 1767 | #define TX_STA_ERR (Tx_ExColl|Tx_Under|Tx_Defer|Tx_LateColl|Tx_TxPar|Tx_SQErr) |
| 1768 | #else |
| 1769 | #define TX_STA_ERR (Tx_ExColl|Tx_Under|Tx_Defer|Tx_NCarr|Tx_LateColl|Tx_TxPar|Tx_SQErr) |
| 1770 | #endif |
| 1771 | |
| 1772 | static void |
| 1773 | tc35815_check_tx_stat(struct net_device *dev, int status) |
| 1774 | { |
| 1775 | struct tc35815_local *lp = dev->priv; |
| 1776 | const char *msg = NULL; |
| 1777 | |
| 1778 | /* count collisions */ |
| 1779 | if (status & Tx_ExColl) |
| 1780 | lp->stats.collisions += 16; |
| 1781 | if (status & Tx_TxColl_MASK) |
| 1782 | lp->stats.collisions += status & Tx_TxColl_MASK; |
| 1783 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1784 | #ifndef NO_CHECK_CARRIER |
| 1785 | /* TX4939 does not have NCarr */ |
| 1786 | if (lp->boardtype == TC35815_TX4939) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1787 | status &= ~Tx_NCarr; |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1788 | #ifdef WORKAROUND_LOSTCAR |
| 1789 | /* WORKAROUND: ignore LostCrS in full duplex operation */ |
| 1790 | if ((lp->timer_state != asleep && lp->timer_state != lcheck) |
| 1791 | || lp->fullduplex) |
| 1792 | status &= ~Tx_NCarr; |
| 1793 | #endif |
| 1794 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1795 | |
| 1796 | if (!(status & TX_STA_ERR)) { |
| 1797 | /* no error. */ |
| 1798 | lp->stats.tx_packets++; |
| 1799 | return; |
| 1800 | } |
| 1801 | |
| 1802 | lp->stats.tx_errors++; |
| 1803 | if (status & Tx_ExColl) { |
| 1804 | lp->stats.tx_aborted_errors++; |
| 1805 | msg = "Excessive Collision."; |
| 1806 | } |
| 1807 | if (status & Tx_Under) { |
| 1808 | lp->stats.tx_fifo_errors++; |
| 1809 | msg = "Tx FIFO Underrun."; |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1810 | if (lp->lstats.tx_underrun < TX_THRESHOLD_KEEP_LIMIT) { |
| 1811 | lp->lstats.tx_underrun++; |
| 1812 | if (lp->lstats.tx_underrun >= TX_THRESHOLD_KEEP_LIMIT) { |
| 1813 | struct tc35815_regs __iomem *tr = |
| 1814 | (struct tc35815_regs __iomem *)dev->base_addr; |
| 1815 | tc_writel(TX_THRESHOLD_MAX, &tr->TxThrsh); |
| 1816 | msg = "Tx FIFO Underrun.Change Tx threshold to max."; |
| 1817 | } |
| 1818 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1819 | } |
| 1820 | if (status & Tx_Defer) { |
| 1821 | lp->stats.tx_fifo_errors++; |
| 1822 | msg = "Excessive Deferral."; |
| 1823 | } |
| 1824 | #ifndef NO_CHECK_CARRIER |
| 1825 | if (status & Tx_NCarr) { |
| 1826 | lp->stats.tx_carrier_errors++; |
| 1827 | msg = "Lost Carrier Sense."; |
| 1828 | } |
| 1829 | #endif |
| 1830 | if (status & Tx_LateColl) { |
| 1831 | lp->stats.tx_aborted_errors++; |
| 1832 | msg = "Late Collision."; |
| 1833 | } |
| 1834 | if (status & Tx_TxPar) { |
| 1835 | lp->stats.tx_fifo_errors++; |
| 1836 | msg = "Transmit Parity Error."; |
| 1837 | } |
| 1838 | if (status & Tx_SQErr) { |
| 1839 | lp->stats.tx_heartbeat_errors++; |
| 1840 | msg = "Signal Quality Error."; |
| 1841 | } |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1842 | if (msg && netif_msg_tx_err(lp)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1843 | printk(KERN_WARNING "%s: %s (%#x)\n", dev->name, msg, status); |
| 1844 | } |
| 1845 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1846 | /* This handles TX complete events posted by the device |
| 1847 | * via interrupts. |
| 1848 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1849 | static void |
| 1850 | tc35815_txdone(struct net_device *dev) |
| 1851 | { |
| 1852 | struct tc35815_local *lp = dev->priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1853 | struct TxFD *txfd; |
| 1854 | unsigned int fdctl; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1855 | |
| 1856 | txfd = &lp->tfd_base[lp->tfd_end]; |
| 1857 | while (lp->tfd_start != lp->tfd_end && |
| 1858 | !((fdctl = le32_to_cpu(txfd->fd.FDCtl)) & FD_CownsFD)) { |
| 1859 | int status = le32_to_cpu(txfd->fd.FDStat); |
| 1860 | struct sk_buff *skb; |
| 1861 | unsigned long fdnext = le32_to_cpu(txfd->fd.FDNext); |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1862 | u32 fdsystem = le32_to_cpu(txfd->fd.FDSystem); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1863 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1864 | if (netif_msg_tx_done(lp)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1865 | printk("%s: complete TxFD.\n", dev->name); |
| 1866 | dump_txfd(txfd); |
| 1867 | } |
| 1868 | tc35815_check_tx_stat(dev, status); |
| 1869 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1870 | skb = fdsystem != 0xffffffff ? |
| 1871 | lp->tx_skbs[fdsystem].skb : NULL; |
| 1872 | #ifdef DEBUG |
| 1873 | if (lp->tx_skbs[lp->tfd_end].skb != skb) { |
| 1874 | printk("%s: tx_skbs mismatch.\n", dev->name); |
| 1875 | panic_queues(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1876 | } |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1877 | #else |
| 1878 | BUG_ON(lp->tx_skbs[lp->tfd_end].skb != skb); |
| 1879 | #endif |
| 1880 | if (skb) { |
| 1881 | lp->stats.tx_bytes += skb->len; |
| 1882 | pci_unmap_single(lp->pci_dev, lp->tx_skbs[lp->tfd_end].skb_dma, skb->len, PCI_DMA_TODEVICE); |
| 1883 | lp->tx_skbs[lp->tfd_end].skb = NULL; |
| 1884 | lp->tx_skbs[lp->tfd_end].skb_dma = 0; |
| 1885 | #ifdef TC35815_NAPI |
| 1886 | dev_kfree_skb_any(skb); |
| 1887 | #else |
| 1888 | dev_kfree_skb_irq(skb); |
| 1889 | #endif |
| 1890 | } |
| 1891 | txfd->fd.FDSystem = cpu_to_le32(0xffffffff); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1892 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1893 | lp->tfd_end = (lp->tfd_end + 1) % TX_FD_NUM; |
| 1894 | txfd = &lp->tfd_base[lp->tfd_end]; |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1895 | #ifdef DEBUG |
| 1896 | if ((fdnext & ~FD_Next_EOL) != fd_virt_to_bus(lp, txfd)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1897 | printk("%s: TxFD FDNext invalid.\n", dev->name); |
| 1898 | panic_queues(dev); |
| 1899 | } |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1900 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1901 | if (fdnext & FD_Next_EOL) { |
| 1902 | /* DMA Transmitter has been stopping... */ |
| 1903 | if (lp->tfd_end != lp->tfd_start) { |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1904 | struct tc35815_regs __iomem *tr = |
| 1905 | (struct tc35815_regs __iomem *)dev->base_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1906 | int head = (lp->tfd_start + TX_FD_NUM - 1) % TX_FD_NUM; |
| 1907 | struct TxFD* txhead = &lp->tfd_base[head]; |
| 1908 | int qlen = (lp->tfd_start + TX_FD_NUM |
| 1909 | - lp->tfd_end) % TX_FD_NUM; |
| 1910 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1911 | #ifdef DEBUG |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1912 | if (!(le32_to_cpu(txfd->fd.FDCtl) & FD_CownsFD)) { |
| 1913 | printk("%s: TxFD FDCtl invalid.\n", dev->name); |
| 1914 | panic_queues(dev); |
| 1915 | } |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1916 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1917 | /* log max queue length */ |
| 1918 | if (lp->lstats.max_tx_qlen < qlen) |
| 1919 | lp->lstats.max_tx_qlen = qlen; |
| 1920 | |
| 1921 | |
| 1922 | /* start DMA Transmitter again */ |
| 1923 | txhead->fd.FDNext |= cpu_to_le32(FD_Next_EOL); |
| 1924 | #ifdef GATHER_TXINT |
| 1925 | txhead->fd.FDCtl |= cpu_to_le32(FD_FrmOpt_IntTx); |
| 1926 | #endif |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1927 | if (netif_msg_tx_queued(lp)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1928 | printk("%s: start TxFD on queue.\n", |
| 1929 | dev->name); |
| 1930 | dump_txfd(txfd); |
| 1931 | } |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1932 | tc_writel(fd_virt_to_bus(lp, txfd), &tr->TxFrmPtr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1933 | } |
| 1934 | break; |
| 1935 | } |
| 1936 | } |
| 1937 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1938 | /* If we had stopped the queue due to a "tx full" |
| 1939 | * condition, and space has now been made available, |
| 1940 | * wake up the queue. |
| 1941 | */ |
| 1942 | if (netif_queue_stopped(dev) && ! tc35815_tx_full(dev)) |
| 1943 | netif_wake_queue(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1944 | } |
| 1945 | |
| 1946 | /* The inverse routine to tc35815_open(). */ |
| 1947 | static int |
| 1948 | tc35815_close(struct net_device *dev) |
| 1949 | { |
| 1950 | struct tc35815_local *lp = dev->priv; |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 1951 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1952 | netif_stop_queue(dev); |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 1953 | #ifdef TC35815_NAPI |
| 1954 | napi_disable(&lp->napi); |
| 1955 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1956 | |
| 1957 | /* Flush the Tx and disable Rx here. */ |
| 1958 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1959 | del_timer(&lp->timer); /* Kill if running */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1960 | tc35815_chip_reset(dev); |
| 1961 | free_irq(dev->irq, dev); |
| 1962 | |
| 1963 | tc35815_free_queues(dev); |
| 1964 | |
| 1965 | return 0; |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1966 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1967 | } |
| 1968 | |
| 1969 | /* |
| 1970 | * Get the current statistics. |
| 1971 | * This may be called with the card open or closed. |
| 1972 | */ |
| 1973 | static struct net_device_stats *tc35815_get_stats(struct net_device *dev) |
| 1974 | { |
| 1975 | struct tc35815_local *lp = dev->priv; |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1976 | struct tc35815_regs __iomem *tr = |
| 1977 | (struct tc35815_regs __iomem *)dev->base_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1978 | if (netif_running(dev)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1979 | /* Update the statistics from the device registers. */ |
| 1980 | lp->stats.rx_missed_errors = tc_readl(&tr->Miss_Cnt); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1981 | } |
| 1982 | |
| 1983 | return &lp->stats; |
| 1984 | } |
| 1985 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1986 | 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] | 1987 | { |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1988 | struct tc35815_local *lp = dev->priv; |
| 1989 | struct tc35815_regs __iomem *tr = |
| 1990 | (struct tc35815_regs __iomem *)dev->base_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1991 | int cam_index = index * 6; |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1992 | u32 cam_data; |
| 1993 | u32 saved_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1994 | saved_addr = tc_readl(&tr->CAM_Adr); |
| 1995 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1996 | if (netif_msg_hw(lp)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1997 | int i; |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 1998 | printk(KERN_DEBUG "%s: CAM %d:", dev->name, index); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1999 | for (i = 0; i < 6; i++) |
| 2000 | printk(" %02x", addr[i]); |
| 2001 | printk("\n"); |
| 2002 | } |
| 2003 | if (index & 1) { |
| 2004 | /* read modify write */ |
| 2005 | tc_writel(cam_index - 2, &tr->CAM_Adr); |
| 2006 | cam_data = tc_readl(&tr->CAM_Data) & 0xffff0000; |
| 2007 | cam_data |= addr[0] << 8 | addr[1]; |
| 2008 | tc_writel(cam_data, &tr->CAM_Data); |
| 2009 | /* write whole word */ |
| 2010 | tc_writel(cam_index + 2, &tr->CAM_Adr); |
| 2011 | cam_data = (addr[2] << 24) | (addr[3] << 16) | (addr[4] << 8) | addr[5]; |
| 2012 | tc_writel(cam_data, &tr->CAM_Data); |
| 2013 | } else { |
| 2014 | /* write whole word */ |
| 2015 | tc_writel(cam_index, &tr->CAM_Adr); |
| 2016 | cam_data = (addr[0] << 24) | (addr[1] << 16) | (addr[2] << 8) | addr[3]; |
| 2017 | tc_writel(cam_data, &tr->CAM_Data); |
| 2018 | /* read modify write */ |
| 2019 | tc_writel(cam_index + 4, &tr->CAM_Adr); |
| 2020 | cam_data = tc_readl(&tr->CAM_Data) & 0x0000ffff; |
| 2021 | cam_data |= addr[4] << 24 | (addr[5] << 16); |
| 2022 | tc_writel(cam_data, &tr->CAM_Data); |
| 2023 | } |
| 2024 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2025 | tc_writel(saved_addr, &tr->CAM_Adr); |
| 2026 | } |
| 2027 | |
| 2028 | |
| 2029 | /* |
| 2030 | * Set or clear the multicast filter for this adaptor. |
| 2031 | * num_addrs == -1 Promiscuous mode, receive all packets |
| 2032 | * num_addrs == 0 Normal mode, clear multicast list |
| 2033 | * num_addrs > 0 Multicast mode, receive normal and MC packets, |
| 2034 | * and do best-effort filtering. |
| 2035 | */ |
| 2036 | static void |
| 2037 | tc35815_set_multicast_list(struct net_device *dev) |
| 2038 | { |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 2039 | struct tc35815_regs __iomem *tr = |
| 2040 | (struct tc35815_regs __iomem *)dev->base_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2041 | |
| 2042 | if (dev->flags&IFF_PROMISC) |
| 2043 | { |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 2044 | #ifdef WORKAROUND_100HALF_PROMISC |
| 2045 | /* With some (all?) 100MHalf HUB, controller will hang |
| 2046 | * if we enabled promiscuous mode before linkup... */ |
| 2047 | struct tc35815_local *lp = dev->priv; |
| 2048 | int pid = lp->phy_addr; |
| 2049 | if (!(tc_mdio_read(dev, pid, MII_BMSR) & BMSR_LSTATUS)) |
| 2050 | return; |
| 2051 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2052 | /* Enable promiscuous mode */ |
| 2053 | tc_writel(CAM_CompEn | CAM_BroadAcc | CAM_GroupAcc | CAM_StationAcc, &tr->CAM_Ctl); |
| 2054 | } |
| 2055 | else if((dev->flags&IFF_ALLMULTI) || dev->mc_count > CAM_ENTRY_MAX - 3) |
| 2056 | { |
| 2057 | /* CAM 0, 1, 20 are reserved. */ |
| 2058 | /* Disable promiscuous mode, use normal mode. */ |
| 2059 | tc_writel(CAM_CompEn | CAM_BroadAcc | CAM_GroupAcc, &tr->CAM_Ctl); |
| 2060 | } |
| 2061 | else if(dev->mc_count) |
| 2062 | { |
| 2063 | struct dev_mc_list* cur_addr = dev->mc_list; |
| 2064 | int i; |
| 2065 | int ena_bits = CAM_Ena_Bit(CAM_ENTRY_SOURCE); |
| 2066 | |
| 2067 | tc_writel(0, &tr->CAM_Ctl); |
| 2068 | /* Walk the address list, and load the filter */ |
| 2069 | for (i = 0; i < dev->mc_count; i++, cur_addr = cur_addr->next) { |
| 2070 | if (!cur_addr) |
| 2071 | break; |
| 2072 | /* entry 0,1 is reserved. */ |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 2073 | tc35815_set_cam_entry(dev, i + 2, cur_addr->dmi_addr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2074 | ena_bits |= CAM_Ena_Bit(i + 2); |
| 2075 | } |
| 2076 | tc_writel(ena_bits, &tr->CAM_Ena); |
| 2077 | tc_writel(CAM_CompEn | CAM_BroadAcc, &tr->CAM_Ctl); |
| 2078 | } |
| 2079 | else { |
| 2080 | tc_writel(CAM_Ena_Bit(CAM_ENTRY_SOURCE), &tr->CAM_Ena); |
| 2081 | tc_writel(CAM_CompEn | CAM_BroadAcc, &tr->CAM_Ctl); |
| 2082 | } |
| 2083 | } |
| 2084 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 2085 | 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] | 2086 | { |
| 2087 | struct tc35815_local *lp = dev->priv; |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 2088 | strcpy(info->driver, MODNAME); |
| 2089 | strcpy(info->version, DRV_VERSION); |
| 2090 | strcpy(info->bus_info, pci_name(lp->pci_dev)); |
| 2091 | } |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 2092 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 2093 | static int tc35815_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
| 2094 | { |
| 2095 | struct tc35815_local *lp = dev->priv; |
| 2096 | spin_lock_irq(&lp->lock); |
| 2097 | mii_ethtool_gset(&lp->mii, cmd); |
| 2098 | spin_unlock_irq(&lp->lock); |
| 2099 | return 0; |
| 2100 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2101 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 2102 | static int tc35815_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
| 2103 | { |
| 2104 | struct tc35815_local *lp = dev->priv; |
| 2105 | int rc; |
| 2106 | #if 1 /* use our negotiation method... */ |
| 2107 | /* Verify the settings we care about. */ |
| 2108 | if (cmd->autoneg != AUTONEG_ENABLE && |
| 2109 | cmd->autoneg != AUTONEG_DISABLE) |
| 2110 | return -EINVAL; |
| 2111 | if (cmd->autoneg == AUTONEG_DISABLE && |
| 2112 | ((cmd->speed != SPEED_100 && |
| 2113 | cmd->speed != SPEED_10) || |
| 2114 | (cmd->duplex != DUPLEX_HALF && |
| 2115 | cmd->duplex != DUPLEX_FULL))) |
| 2116 | return -EINVAL; |
| 2117 | |
| 2118 | /* Ok, do it to it. */ |
| 2119 | spin_lock_irq(&lp->lock); |
| 2120 | del_timer(&lp->timer); |
| 2121 | tc35815_start_auto_negotiation(dev, cmd); |
| 2122 | spin_unlock_irq(&lp->lock); |
| 2123 | rc = 0; |
| 2124 | #else |
| 2125 | spin_lock_irq(&lp->lock); |
| 2126 | rc = mii_ethtool_sset(&lp->mii, cmd); |
| 2127 | spin_unlock_irq(&lp->lock); |
| 2128 | #endif |
| 2129 | return rc; |
| 2130 | } |
| 2131 | |
| 2132 | static int tc35815_nway_reset(struct net_device *dev) |
| 2133 | { |
| 2134 | struct tc35815_local *lp = dev->priv; |
| 2135 | int rc; |
| 2136 | spin_lock_irq(&lp->lock); |
| 2137 | rc = mii_nway_restart(&lp->mii); |
| 2138 | spin_unlock_irq(&lp->lock); |
| 2139 | return rc; |
| 2140 | } |
| 2141 | |
| 2142 | static u32 tc35815_get_link(struct net_device *dev) |
| 2143 | { |
| 2144 | struct tc35815_local *lp = dev->priv; |
| 2145 | int rc; |
| 2146 | spin_lock_irq(&lp->lock); |
| 2147 | rc = mii_link_ok(&lp->mii); |
| 2148 | spin_unlock_irq(&lp->lock); |
| 2149 | return rc; |
| 2150 | } |
| 2151 | |
| 2152 | static u32 tc35815_get_msglevel(struct net_device *dev) |
| 2153 | { |
| 2154 | struct tc35815_local *lp = dev->priv; |
| 2155 | return lp->msg_enable; |
| 2156 | } |
| 2157 | |
| 2158 | static void tc35815_set_msglevel(struct net_device *dev, u32 datum) |
| 2159 | { |
| 2160 | struct tc35815_local *lp = dev->priv; |
| 2161 | lp->msg_enable = datum; |
| 2162 | } |
| 2163 | |
Jeff Garzik | b9f2c04 | 2007-10-03 18:07:32 -0700 | [diff] [blame] | 2164 | static int tc35815_get_sset_count(struct net_device *dev, int sset) |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 2165 | { |
| 2166 | struct tc35815_local *lp = dev->priv; |
Jeff Garzik | b9f2c04 | 2007-10-03 18:07:32 -0700 | [diff] [blame] | 2167 | |
| 2168 | switch (sset) { |
| 2169 | case ETH_SS_STATS: |
| 2170 | return sizeof(lp->lstats) / sizeof(int); |
| 2171 | default: |
| 2172 | return -EOPNOTSUPP; |
| 2173 | } |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 2174 | } |
| 2175 | |
| 2176 | static void tc35815_get_ethtool_stats(struct net_device *dev, struct ethtool_stats *stats, u64 *data) |
| 2177 | { |
| 2178 | struct tc35815_local *lp = dev->priv; |
| 2179 | data[0] = lp->lstats.max_tx_qlen; |
| 2180 | data[1] = lp->lstats.tx_ints; |
| 2181 | data[2] = lp->lstats.rx_ints; |
| 2182 | data[3] = lp->lstats.tx_underrun; |
| 2183 | } |
| 2184 | |
| 2185 | static struct { |
| 2186 | const char str[ETH_GSTRING_LEN]; |
| 2187 | } ethtool_stats_keys[] = { |
| 2188 | { "max_tx_qlen" }, |
| 2189 | { "tx_ints" }, |
| 2190 | { "rx_ints" }, |
| 2191 | { "tx_underrun" }, |
| 2192 | }; |
| 2193 | |
| 2194 | static void tc35815_get_strings(struct net_device *dev, u32 stringset, u8 *data) |
| 2195 | { |
| 2196 | memcpy(data, ethtool_stats_keys, sizeof(ethtool_stats_keys)); |
| 2197 | } |
| 2198 | |
| 2199 | static const struct ethtool_ops tc35815_ethtool_ops = { |
| 2200 | .get_drvinfo = tc35815_get_drvinfo, |
| 2201 | .get_settings = tc35815_get_settings, |
| 2202 | .set_settings = tc35815_set_settings, |
| 2203 | .nway_reset = tc35815_nway_reset, |
| 2204 | .get_link = tc35815_get_link, |
| 2205 | .get_msglevel = tc35815_get_msglevel, |
| 2206 | .set_msglevel = tc35815_set_msglevel, |
| 2207 | .get_strings = tc35815_get_strings, |
Jeff Garzik | b9f2c04 | 2007-10-03 18:07:32 -0700 | [diff] [blame] | 2208 | .get_sset_count = tc35815_get_sset_count, |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 2209 | .get_ethtool_stats = tc35815_get_ethtool_stats, |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 2210 | }; |
| 2211 | |
| 2212 | static int tc35815_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) |
| 2213 | { |
| 2214 | struct tc35815_local *lp = dev->priv; |
| 2215 | int rc; |
| 2216 | |
| 2217 | if (!netif_running(dev)) |
| 2218 | return -EINVAL; |
| 2219 | |
| 2220 | spin_lock_irq(&lp->lock); |
| 2221 | rc = generic_mii_ioctl(&lp->mii, if_mii(rq), cmd, NULL); |
| 2222 | spin_unlock_irq(&lp->lock); |
| 2223 | |
| 2224 | return rc; |
| 2225 | } |
| 2226 | |
| 2227 | static int tc_mdio_read(struct net_device *dev, int phy_id, int location) |
| 2228 | { |
| 2229 | struct tc35815_regs __iomem *tr = |
| 2230 | (struct tc35815_regs __iomem *)dev->base_addr; |
| 2231 | u32 data; |
| 2232 | tc_writel(MD_CA_Busy | (phy_id << 5) | location, &tr->MD_CA); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2233 | while (tc_readl(&tr->MD_CA) & MD_CA_Busy) |
| 2234 | ; |
| 2235 | data = tc_readl(&tr->MD_Data); |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 2236 | return data & 0xffff; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2237 | } |
| 2238 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 2239 | static void tc_mdio_write(struct net_device *dev, int phy_id, int location, |
| 2240 | int val) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2241 | { |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 2242 | struct tc35815_regs __iomem *tr = |
| 2243 | (struct tc35815_regs __iomem *)dev->base_addr; |
| 2244 | tc_writel(val, &tr->MD_Data); |
| 2245 | 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] | 2246 | while (tc_readl(&tr->MD_CA) & MD_CA_Busy) |
| 2247 | ; |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 2248 | } |
| 2249 | |
| 2250 | /* Auto negotiation. The scheme is very simple. We have a timer routine |
| 2251 | * that keeps watching the auto negotiation process as it progresses. |
| 2252 | * The DP83840 is first told to start doing it's thing, we set up the time |
| 2253 | * and place the timer state machine in it's initial state. |
| 2254 | * |
| 2255 | * Here the timer peeks at the DP83840 status registers at each click to see |
| 2256 | * if the auto negotiation has completed, we assume here that the DP83840 PHY |
| 2257 | * will time out at some point and just tell us what (didn't) happen. For |
| 2258 | * complete coverage we only allow so many of the ticks at this level to run, |
| 2259 | * when this has expired we print a warning message and try another strategy. |
| 2260 | * This "other" strategy is to force the interface into various speed/duplex |
| 2261 | * configurations and we stop when we see a link-up condition before the |
| 2262 | * maximum number of "peek" ticks have occurred. |
| 2263 | * |
| 2264 | * Once a valid link status has been detected we configure the BigMAC and |
| 2265 | * the rest of the Happy Meal to speak the most efficient protocol we could |
| 2266 | * get a clean link for. The priority for link configurations, highest first |
| 2267 | * is: |
| 2268 | * 100 Base-T Full Duplex |
| 2269 | * 100 Base-T Half Duplex |
| 2270 | * 10 Base-T Full Duplex |
| 2271 | * 10 Base-T Half Duplex |
| 2272 | * |
| 2273 | * We start a new timer now, after a successful auto negotiation status has |
| 2274 | * been detected. This timer just waits for the link-up bit to get set in |
| 2275 | * the BMCR of the DP83840. When this occurs we print a kernel log message |
| 2276 | * describing the link type in use and the fact that it is up. |
| 2277 | * |
| 2278 | * If a fatal error of some sort is signalled and detected in the interrupt |
| 2279 | * service routine, and the chip is reset, or the link is ifconfig'd down |
| 2280 | * and then back up, this entire process repeats itself all over again. |
| 2281 | */ |
| 2282 | /* Note: Above comments are come from sunhme driver. */ |
| 2283 | |
| 2284 | static int tc35815_try_next_permutation(struct net_device *dev) |
| 2285 | { |
| 2286 | struct tc35815_local *lp = dev->priv; |
| 2287 | int pid = lp->phy_addr; |
| 2288 | unsigned short bmcr; |
| 2289 | |
| 2290 | bmcr = tc_mdio_read(dev, pid, MII_BMCR); |
| 2291 | |
| 2292 | /* Downgrade from full to half duplex. Only possible via ethtool. */ |
| 2293 | if (bmcr & BMCR_FULLDPLX) { |
| 2294 | bmcr &= ~BMCR_FULLDPLX; |
| 2295 | printk(KERN_DEBUG "%s: try next permutation (BMCR %x)\n", dev->name, bmcr); |
| 2296 | tc_mdio_write(dev, pid, MII_BMCR, bmcr); |
| 2297 | return 0; |
| 2298 | } |
| 2299 | |
| 2300 | /* Downgrade from 100 to 10. */ |
| 2301 | if (bmcr & BMCR_SPEED100) { |
| 2302 | bmcr &= ~BMCR_SPEED100; |
| 2303 | printk(KERN_DEBUG "%s: try next permutation (BMCR %x)\n", dev->name, bmcr); |
| 2304 | tc_mdio_write(dev, pid, MII_BMCR, bmcr); |
| 2305 | return 0; |
| 2306 | } |
| 2307 | |
| 2308 | /* We've tried everything. */ |
| 2309 | return -1; |
| 2310 | } |
| 2311 | |
| 2312 | static void |
| 2313 | tc35815_display_link_mode(struct net_device *dev) |
| 2314 | { |
| 2315 | struct tc35815_local *lp = dev->priv; |
| 2316 | int pid = lp->phy_addr; |
| 2317 | unsigned short lpa, bmcr; |
| 2318 | char *speed = "", *duplex = ""; |
| 2319 | |
| 2320 | lpa = tc_mdio_read(dev, pid, MII_LPA); |
| 2321 | bmcr = tc_mdio_read(dev, pid, MII_BMCR); |
| 2322 | if (options.speed ? (bmcr & BMCR_SPEED100) : (lpa & (LPA_100HALF | LPA_100FULL))) |
| 2323 | speed = "100Mb/s"; |
| 2324 | else |
| 2325 | speed = "10Mb/s"; |
| 2326 | if (options.duplex ? (bmcr & BMCR_FULLDPLX) : (lpa & (LPA_100FULL | LPA_10FULL))) |
| 2327 | duplex = "Full Duplex"; |
| 2328 | else |
| 2329 | duplex = "Half Duplex"; |
| 2330 | |
| 2331 | if (netif_msg_link(lp)) |
| 2332 | printk(KERN_INFO "%s: Link is up at %s, %s.\n", |
| 2333 | dev->name, speed, duplex); |
| 2334 | printk(KERN_DEBUG "%s: MII BMCR %04x BMSR %04x LPA %04x\n", |
| 2335 | dev->name, |
| 2336 | bmcr, tc_mdio_read(dev, pid, MII_BMSR), lpa); |
| 2337 | } |
| 2338 | |
| 2339 | static void tc35815_display_forced_link_mode(struct net_device *dev) |
| 2340 | { |
| 2341 | struct tc35815_local *lp = dev->priv; |
| 2342 | int pid = lp->phy_addr; |
| 2343 | unsigned short bmcr; |
| 2344 | char *speed = "", *duplex = ""; |
| 2345 | |
| 2346 | bmcr = tc_mdio_read(dev, pid, MII_BMCR); |
| 2347 | if (bmcr & BMCR_SPEED100) |
| 2348 | speed = "100Mb/s"; |
| 2349 | else |
| 2350 | speed = "10Mb/s"; |
| 2351 | if (bmcr & BMCR_FULLDPLX) |
| 2352 | duplex = "Full Duplex.\n"; |
| 2353 | else |
| 2354 | duplex = "Half Duplex.\n"; |
| 2355 | |
| 2356 | if (netif_msg_link(lp)) |
| 2357 | printk(KERN_INFO "%s: Link has been forced up at %s, %s", |
| 2358 | dev->name, speed, duplex); |
| 2359 | } |
| 2360 | |
| 2361 | static void tc35815_set_link_modes(struct net_device *dev) |
| 2362 | { |
| 2363 | struct tc35815_local *lp = dev->priv; |
| 2364 | struct tc35815_regs __iomem *tr = |
| 2365 | (struct tc35815_regs __iomem *)dev->base_addr; |
| 2366 | int pid = lp->phy_addr; |
| 2367 | unsigned short bmcr, lpa; |
| 2368 | int speed; |
| 2369 | |
| 2370 | if (lp->timer_state == arbwait) { |
| 2371 | lpa = tc_mdio_read(dev, pid, MII_LPA); |
| 2372 | bmcr = tc_mdio_read(dev, pid, MII_BMCR); |
| 2373 | printk(KERN_DEBUG "%s: MII BMCR %04x BMSR %04x LPA %04x\n", |
| 2374 | dev->name, |
| 2375 | bmcr, tc_mdio_read(dev, pid, MII_BMSR), lpa); |
| 2376 | if (!(lpa & (LPA_10HALF | LPA_10FULL | |
| 2377 | LPA_100HALF | LPA_100FULL))) { |
| 2378 | /* fall back to 10HALF */ |
| 2379 | printk(KERN_INFO "%s: bad ability %04x - falling back to 10HD.\n", |
| 2380 | dev->name, lpa); |
| 2381 | lpa = LPA_10HALF; |
| 2382 | } |
| 2383 | if (options.duplex ? (bmcr & BMCR_FULLDPLX) : (lpa & (LPA_100FULL | LPA_10FULL))) |
| 2384 | lp->fullduplex = 1; |
| 2385 | else |
| 2386 | lp->fullduplex = 0; |
| 2387 | if (options.speed ? (bmcr & BMCR_SPEED100) : (lpa & (LPA_100HALF | LPA_100FULL))) |
| 2388 | speed = 100; |
| 2389 | else |
| 2390 | speed = 10; |
| 2391 | } else { |
| 2392 | /* Forcing a link mode. */ |
| 2393 | bmcr = tc_mdio_read(dev, pid, MII_BMCR); |
| 2394 | if (bmcr & BMCR_FULLDPLX) |
| 2395 | lp->fullduplex = 1; |
| 2396 | else |
| 2397 | lp->fullduplex = 0; |
| 2398 | if (bmcr & BMCR_SPEED100) |
| 2399 | speed = 100; |
| 2400 | else |
| 2401 | speed = 10; |
| 2402 | } |
| 2403 | |
| 2404 | tc_writel(tc_readl(&tr->MAC_Ctl) | MAC_HaltReq, &tr->MAC_Ctl); |
| 2405 | if (lp->fullduplex) { |
| 2406 | tc_writel(tc_readl(&tr->MAC_Ctl) | MAC_FullDup, &tr->MAC_Ctl); |
| 2407 | } else { |
| 2408 | tc_writel(tc_readl(&tr->MAC_Ctl) & ~MAC_FullDup, &tr->MAC_Ctl); |
| 2409 | } |
| 2410 | tc_writel(tc_readl(&tr->MAC_Ctl) & ~MAC_HaltReq, &tr->MAC_Ctl); |
| 2411 | |
| 2412 | /* TX4939 PCFG.SPEEDn bit will be changed on NETDEV_CHANGE event. */ |
| 2413 | |
| 2414 | #ifndef NO_CHECK_CARRIER |
| 2415 | /* TX4939 does not have EnLCarr */ |
| 2416 | if (lp->boardtype != TC35815_TX4939) { |
| 2417 | #ifdef WORKAROUND_LOSTCAR |
| 2418 | /* WORKAROUND: enable LostCrS only if half duplex operation */ |
| 2419 | if (!lp->fullduplex && lp->boardtype != TC35815_TX4939) |
| 2420 | tc_writel(tc_readl(&tr->Tx_Ctl) | Tx_EnLCarr, &tr->Tx_Ctl); |
| 2421 | #endif |
| 2422 | } |
| 2423 | #endif |
| 2424 | lp->mii.full_duplex = lp->fullduplex; |
| 2425 | } |
| 2426 | |
| 2427 | static void tc35815_timer(unsigned long data) |
| 2428 | { |
| 2429 | struct net_device *dev = (struct net_device *)data; |
| 2430 | struct tc35815_local *lp = dev->priv; |
| 2431 | int pid = lp->phy_addr; |
| 2432 | unsigned short bmsr, bmcr, lpa; |
| 2433 | int restart_timer = 0; |
| 2434 | |
| 2435 | spin_lock_irq(&lp->lock); |
| 2436 | |
| 2437 | lp->timer_ticks++; |
| 2438 | switch (lp->timer_state) { |
| 2439 | case arbwait: |
| 2440 | /* |
| 2441 | * Only allow for 5 ticks, thats 10 seconds and much too |
| 2442 | * long to wait for arbitration to complete. |
| 2443 | */ |
| 2444 | /* TC35815 need more times... */ |
| 2445 | if (lp->timer_ticks >= 10) { |
| 2446 | /* Enter force mode. */ |
| 2447 | if (!options.doforce) { |
| 2448 | printk(KERN_NOTICE "%s: Auto-Negotiation unsuccessful," |
| 2449 | " cable probblem?\n", dev->name); |
| 2450 | /* Try to restart the adaptor. */ |
| 2451 | tc35815_restart(dev); |
| 2452 | goto out; |
| 2453 | } |
| 2454 | printk(KERN_NOTICE "%s: Auto-Negotiation unsuccessful," |
| 2455 | " trying force link mode\n", dev->name); |
| 2456 | printk(KERN_DEBUG "%s: BMCR %x BMSR %x\n", dev->name, |
| 2457 | tc_mdio_read(dev, pid, MII_BMCR), |
| 2458 | tc_mdio_read(dev, pid, MII_BMSR)); |
| 2459 | bmcr = BMCR_SPEED100; |
| 2460 | tc_mdio_write(dev, pid, MII_BMCR, bmcr); |
| 2461 | |
| 2462 | /* |
| 2463 | * OK, seems we need do disable the transceiver |
| 2464 | * for the first tick to make sure we get an |
| 2465 | * accurate link state at the second tick. |
| 2466 | */ |
| 2467 | |
| 2468 | lp->timer_state = ltrywait; |
| 2469 | lp->timer_ticks = 0; |
| 2470 | restart_timer = 1; |
| 2471 | } else { |
| 2472 | /* Anything interesting happen? */ |
| 2473 | bmsr = tc_mdio_read(dev, pid, MII_BMSR); |
| 2474 | if (bmsr & BMSR_ANEGCOMPLETE) { |
| 2475 | /* Just what we've been waiting for... */ |
| 2476 | tc35815_set_link_modes(dev); |
| 2477 | |
| 2478 | /* |
| 2479 | * Success, at least so far, advance our state |
| 2480 | * engine. |
| 2481 | */ |
| 2482 | lp->timer_state = lupwait; |
| 2483 | restart_timer = 1; |
| 2484 | } else { |
| 2485 | restart_timer = 1; |
| 2486 | } |
| 2487 | } |
| 2488 | break; |
| 2489 | |
| 2490 | case lupwait: |
| 2491 | /* |
| 2492 | * Auto negotiation was successful and we are awaiting a |
| 2493 | * link up status. I have decided to let this timer run |
| 2494 | * forever until some sort of error is signalled, reporting |
| 2495 | * a message to the user at 10 second intervals. |
| 2496 | */ |
| 2497 | bmsr = tc_mdio_read(dev, pid, MII_BMSR); |
| 2498 | if (bmsr & BMSR_LSTATUS) { |
| 2499 | /* |
| 2500 | * Wheee, it's up, display the link mode in use and put |
| 2501 | * the timer to sleep. |
| 2502 | */ |
| 2503 | tc35815_display_link_mode(dev); |
| 2504 | netif_carrier_on(dev); |
| 2505 | #ifdef WORKAROUND_100HALF_PROMISC |
| 2506 | /* delayed promiscuous enabling */ |
| 2507 | if (dev->flags & IFF_PROMISC) |
| 2508 | tc35815_set_multicast_list(dev); |
| 2509 | #endif |
| 2510 | #if 1 |
| 2511 | lp->saved_lpa = tc_mdio_read(dev, pid, MII_LPA); |
| 2512 | lp->timer_state = lcheck; |
| 2513 | restart_timer = 1; |
| 2514 | #else |
| 2515 | lp->timer_state = asleep; |
| 2516 | restart_timer = 0; |
| 2517 | #endif |
| 2518 | } else { |
| 2519 | if (lp->timer_ticks >= 10) { |
| 2520 | printk(KERN_NOTICE "%s: Auto negotiation successful, link still " |
| 2521 | "not completely up.\n", dev->name); |
| 2522 | lp->timer_ticks = 0; |
| 2523 | restart_timer = 1; |
| 2524 | } else { |
| 2525 | restart_timer = 1; |
| 2526 | } |
| 2527 | } |
| 2528 | break; |
| 2529 | |
| 2530 | case ltrywait: |
| 2531 | /* |
| 2532 | * Making the timeout here too long can make it take |
| 2533 | * annoyingly long to attempt all of the link mode |
| 2534 | * permutations, but then again this is essentially |
| 2535 | * error recovery code for the most part. |
| 2536 | */ |
| 2537 | bmsr = tc_mdio_read(dev, pid, MII_BMSR); |
| 2538 | bmcr = tc_mdio_read(dev, pid, MII_BMCR); |
| 2539 | if (lp->timer_ticks == 1) { |
| 2540 | /* |
| 2541 | * Re-enable transceiver, we'll re-enable the |
| 2542 | * transceiver next tick, then check link state |
| 2543 | * on the following tick. |
| 2544 | */ |
| 2545 | restart_timer = 1; |
| 2546 | break; |
| 2547 | } |
| 2548 | if (lp->timer_ticks == 2) { |
| 2549 | restart_timer = 1; |
| 2550 | break; |
| 2551 | } |
| 2552 | if (bmsr & BMSR_LSTATUS) { |
| 2553 | /* Force mode selection success. */ |
| 2554 | tc35815_display_forced_link_mode(dev); |
| 2555 | netif_carrier_on(dev); |
| 2556 | tc35815_set_link_modes(dev); |
| 2557 | #ifdef WORKAROUND_100HALF_PROMISC |
| 2558 | /* delayed promiscuous enabling */ |
| 2559 | if (dev->flags & IFF_PROMISC) |
| 2560 | tc35815_set_multicast_list(dev); |
| 2561 | #endif |
| 2562 | #if 1 |
| 2563 | lp->saved_lpa = tc_mdio_read(dev, pid, MII_LPA); |
| 2564 | lp->timer_state = lcheck; |
| 2565 | restart_timer = 1; |
| 2566 | #else |
| 2567 | lp->timer_state = asleep; |
| 2568 | restart_timer = 0; |
| 2569 | #endif |
| 2570 | } else { |
| 2571 | if (lp->timer_ticks >= 4) { /* 6 seconds or so... */ |
| 2572 | int ret; |
| 2573 | |
| 2574 | ret = tc35815_try_next_permutation(dev); |
| 2575 | if (ret == -1) { |
| 2576 | /* |
| 2577 | * Aieee, tried them all, reset the |
| 2578 | * chip and try all over again. |
| 2579 | */ |
| 2580 | printk(KERN_NOTICE "%s: Link down, " |
| 2581 | "cable problem?\n", |
| 2582 | dev->name); |
| 2583 | |
| 2584 | /* Try to restart the adaptor. */ |
| 2585 | tc35815_restart(dev); |
| 2586 | goto out; |
| 2587 | } |
| 2588 | lp->timer_ticks = 0; |
| 2589 | restart_timer = 1; |
| 2590 | } else { |
| 2591 | restart_timer = 1; |
| 2592 | } |
| 2593 | } |
| 2594 | break; |
| 2595 | |
| 2596 | case lcheck: |
| 2597 | bmcr = tc_mdio_read(dev, pid, MII_BMCR); |
| 2598 | lpa = tc_mdio_read(dev, pid, MII_LPA); |
| 2599 | if (bmcr & (BMCR_PDOWN | BMCR_ISOLATE | BMCR_RESET)) { |
| 2600 | printk(KERN_ERR "%s: PHY down? (BMCR %x)\n", dev->name, |
| 2601 | bmcr); |
| 2602 | } else if ((lp->saved_lpa ^ lpa) & |
| 2603 | (LPA_100FULL|LPA_100HALF|LPA_10FULL|LPA_10HALF)) { |
| 2604 | printk(KERN_NOTICE "%s: link status changed" |
| 2605 | " (BMCR %x LPA %x->%x)\n", dev->name, |
| 2606 | bmcr, lp->saved_lpa, lpa); |
| 2607 | } else { |
| 2608 | /* go on */ |
| 2609 | restart_timer = 1; |
| 2610 | break; |
| 2611 | } |
| 2612 | /* Try to restart the adaptor. */ |
| 2613 | tc35815_restart(dev); |
| 2614 | goto out; |
| 2615 | |
| 2616 | case asleep: |
| 2617 | default: |
| 2618 | /* Can't happens.... */ |
| 2619 | printk(KERN_ERR "%s: Aieee, link timer is asleep but we got " |
| 2620 | "one anyways!\n", dev->name); |
| 2621 | restart_timer = 0; |
| 2622 | lp->timer_ticks = 0; |
| 2623 | lp->timer_state = asleep; /* foo on you */ |
| 2624 | break; |
| 2625 | } |
| 2626 | |
| 2627 | if (restart_timer) { |
| 2628 | lp->timer.expires = jiffies + msecs_to_jiffies(1200); |
| 2629 | add_timer(&lp->timer); |
| 2630 | } |
| 2631 | out: |
| 2632 | spin_unlock_irq(&lp->lock); |
| 2633 | } |
| 2634 | |
| 2635 | static void tc35815_start_auto_negotiation(struct net_device *dev, |
| 2636 | struct ethtool_cmd *ep) |
| 2637 | { |
| 2638 | struct tc35815_local *lp = dev->priv; |
| 2639 | int pid = lp->phy_addr; |
| 2640 | unsigned short bmsr, bmcr, advertize; |
| 2641 | int timeout; |
| 2642 | |
| 2643 | netif_carrier_off(dev); |
| 2644 | bmsr = tc_mdio_read(dev, pid, MII_BMSR); |
| 2645 | bmcr = tc_mdio_read(dev, pid, MII_BMCR); |
| 2646 | advertize = tc_mdio_read(dev, pid, MII_ADVERTISE); |
| 2647 | |
| 2648 | if (ep == NULL || ep->autoneg == AUTONEG_ENABLE) { |
| 2649 | if (options.speed || options.duplex) { |
| 2650 | /* Advertise only specified configuration. */ |
| 2651 | advertize &= ~(ADVERTISE_10HALF | |
| 2652 | ADVERTISE_10FULL | |
| 2653 | ADVERTISE_100HALF | |
| 2654 | ADVERTISE_100FULL); |
| 2655 | if (options.speed != 10) { |
| 2656 | if (options.duplex != 1) |
| 2657 | advertize |= ADVERTISE_100FULL; |
| 2658 | if (options.duplex != 2) |
| 2659 | advertize |= ADVERTISE_100HALF; |
| 2660 | } |
| 2661 | if (options.speed != 100) { |
| 2662 | if (options.duplex != 1) |
| 2663 | advertize |= ADVERTISE_10FULL; |
| 2664 | if (options.duplex != 2) |
| 2665 | advertize |= ADVERTISE_10HALF; |
| 2666 | } |
| 2667 | if (options.speed == 100) |
| 2668 | bmcr |= BMCR_SPEED100; |
| 2669 | else if (options.speed == 10) |
| 2670 | bmcr &= ~BMCR_SPEED100; |
| 2671 | if (options.duplex == 2) |
| 2672 | bmcr |= BMCR_FULLDPLX; |
| 2673 | else if (options.duplex == 1) |
| 2674 | bmcr &= ~BMCR_FULLDPLX; |
| 2675 | } else { |
| 2676 | /* Advertise everything we can support. */ |
| 2677 | if (bmsr & BMSR_10HALF) |
| 2678 | advertize |= ADVERTISE_10HALF; |
| 2679 | else |
| 2680 | advertize &= ~ADVERTISE_10HALF; |
| 2681 | if (bmsr & BMSR_10FULL) |
| 2682 | advertize |= ADVERTISE_10FULL; |
| 2683 | else |
| 2684 | advertize &= ~ADVERTISE_10FULL; |
| 2685 | if (bmsr & BMSR_100HALF) |
| 2686 | advertize |= ADVERTISE_100HALF; |
| 2687 | else |
| 2688 | advertize &= ~ADVERTISE_100HALF; |
| 2689 | if (bmsr & BMSR_100FULL) |
| 2690 | advertize |= ADVERTISE_100FULL; |
| 2691 | else |
| 2692 | advertize &= ~ADVERTISE_100FULL; |
| 2693 | } |
| 2694 | |
| 2695 | tc_mdio_write(dev, pid, MII_ADVERTISE, advertize); |
| 2696 | |
| 2697 | /* Enable Auto-Negotiation, this is usually on already... */ |
| 2698 | bmcr |= BMCR_ANENABLE; |
| 2699 | tc_mdio_write(dev, pid, MII_BMCR, bmcr); |
| 2700 | |
| 2701 | /* Restart it to make sure it is going. */ |
| 2702 | bmcr |= BMCR_ANRESTART; |
| 2703 | tc_mdio_write(dev, pid, MII_BMCR, bmcr); |
| 2704 | printk(KERN_DEBUG "%s: ADVERTISE %x BMCR %x\n", dev->name, advertize, bmcr); |
| 2705 | |
| 2706 | /* BMCR_ANRESTART self clears when the process has begun. */ |
| 2707 | timeout = 64; /* More than enough. */ |
| 2708 | while (--timeout) { |
| 2709 | bmcr = tc_mdio_read(dev, pid, MII_BMCR); |
| 2710 | if (!(bmcr & BMCR_ANRESTART)) |
| 2711 | break; /* got it. */ |
| 2712 | udelay(10); |
| 2713 | } |
| 2714 | if (!timeout) { |
| 2715 | printk(KERN_ERR "%s: TC35815 would not start auto " |
| 2716 | "negotiation BMCR=0x%04x\n", |
| 2717 | dev->name, bmcr); |
| 2718 | printk(KERN_NOTICE "%s: Performing force link " |
| 2719 | "detection.\n", dev->name); |
| 2720 | goto force_link; |
| 2721 | } else { |
| 2722 | printk(KERN_DEBUG "%s: auto negotiation started.\n", dev->name); |
| 2723 | lp->timer_state = arbwait; |
| 2724 | } |
| 2725 | } else { |
| 2726 | force_link: |
| 2727 | /* Force the link up, trying first a particular mode. |
| 2728 | * Either we are here at the request of ethtool or |
| 2729 | * because the Happy Meal would not start to autoneg. |
| 2730 | */ |
| 2731 | |
| 2732 | /* Disable auto-negotiation in BMCR, enable the duplex and |
| 2733 | * speed setting, init the timer state machine, and fire it off. |
| 2734 | */ |
| 2735 | if (ep == NULL || ep->autoneg == AUTONEG_ENABLE) { |
| 2736 | bmcr = BMCR_SPEED100; |
| 2737 | } else { |
| 2738 | if (ep->speed == SPEED_100) |
| 2739 | bmcr = BMCR_SPEED100; |
| 2740 | else |
| 2741 | bmcr = 0; |
| 2742 | if (ep->duplex == DUPLEX_FULL) |
| 2743 | bmcr |= BMCR_FULLDPLX; |
| 2744 | } |
| 2745 | tc_mdio_write(dev, pid, MII_BMCR, bmcr); |
| 2746 | |
| 2747 | /* OK, seems we need do disable the transceiver for the first |
| 2748 | * tick to make sure we get an accurate link state at the |
| 2749 | * second tick. |
| 2750 | */ |
| 2751 | lp->timer_state = ltrywait; |
| 2752 | } |
| 2753 | |
| 2754 | del_timer(&lp->timer); |
| 2755 | lp->timer_ticks = 0; |
| 2756 | lp->timer.expires = jiffies + msecs_to_jiffies(1200); |
| 2757 | add_timer(&lp->timer); |
| 2758 | } |
| 2759 | |
| 2760 | static void tc35815_find_phy(struct net_device *dev) |
| 2761 | { |
| 2762 | struct tc35815_local *lp = dev->priv; |
| 2763 | int pid = lp->phy_addr; |
| 2764 | unsigned short id0; |
| 2765 | |
| 2766 | /* find MII phy */ |
| 2767 | for (pid = 31; pid >= 0; pid--) { |
| 2768 | id0 = tc_mdio_read(dev, pid, MII_BMSR); |
| 2769 | if (id0 != 0xffff && id0 != 0x0000 && |
| 2770 | (id0 & BMSR_RESV) != (0xffff & BMSR_RESV) /* paranoia? */ |
| 2771 | ) { |
| 2772 | lp->phy_addr = pid; |
| 2773 | break; |
| 2774 | } |
| 2775 | } |
| 2776 | if (pid < 0) { |
| 2777 | printk(KERN_ERR "%s: No MII Phy found.\n", |
| 2778 | dev->name); |
| 2779 | lp->phy_addr = pid = 0; |
| 2780 | } |
| 2781 | |
| 2782 | lp->mii_id[0] = tc_mdio_read(dev, pid, MII_PHYSID1); |
| 2783 | lp->mii_id[1] = tc_mdio_read(dev, pid, MII_PHYSID2); |
| 2784 | if (netif_msg_hw(lp)) |
| 2785 | printk(KERN_INFO "%s: PHY(%02x) ID %04x %04x\n", dev->name, |
| 2786 | pid, lp->mii_id[0], lp->mii_id[1]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2787 | } |
| 2788 | |
| 2789 | static void tc35815_phy_chip_init(struct net_device *dev) |
| 2790 | { |
| 2791 | struct tc35815_local *lp = dev->priv; |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 2792 | int pid = lp->phy_addr; |
| 2793 | unsigned short bmcr; |
| 2794 | struct ethtool_cmd ecmd, *ep; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2795 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 2796 | /* dis-isolate if needed. */ |
| 2797 | bmcr = tc_mdio_read(dev, pid, MII_BMCR); |
| 2798 | if (bmcr & BMCR_ISOLATE) { |
| 2799 | int count = 32; |
| 2800 | printk(KERN_DEBUG "%s: unisolating...", dev->name); |
| 2801 | tc_mdio_write(dev, pid, MII_BMCR, bmcr & ~BMCR_ISOLATE); |
| 2802 | while (--count) { |
| 2803 | if (!(tc_mdio_read(dev, pid, MII_BMCR) & BMCR_ISOLATE)) |
| 2804 | break; |
| 2805 | udelay(20); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2806 | } |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 2807 | printk(" %s.\n", count ? "done" : "failed"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2808 | } |
| 2809 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 2810 | if (options.speed && options.duplex) { |
| 2811 | ecmd.autoneg = AUTONEG_DISABLE; |
| 2812 | ecmd.speed = options.speed == 10 ? SPEED_10 : SPEED_100; |
| 2813 | ecmd.duplex = options.duplex == 1 ? DUPLEX_HALF : DUPLEX_FULL; |
| 2814 | ep = &ecmd; |
| 2815 | } else { |
| 2816 | ep = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2817 | } |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 2818 | tc35815_start_auto_negotiation(dev, ep); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2819 | } |
| 2820 | |
| 2821 | static void tc35815_chip_reset(struct net_device *dev) |
| 2822 | { |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 2823 | struct tc35815_regs __iomem *tr = |
| 2824 | (struct tc35815_regs __iomem *)dev->base_addr; |
| 2825 | int i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2826 | /* reset the controller */ |
| 2827 | tc_writel(MAC_Reset, &tr->MAC_Ctl); |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 2828 | udelay(4); /* 3200ns */ |
| 2829 | i = 0; |
| 2830 | while (tc_readl(&tr->MAC_Ctl) & MAC_Reset) { |
| 2831 | if (i++ > 100) { |
| 2832 | printk(KERN_ERR "%s: MAC reset failed.\n", dev->name); |
| 2833 | break; |
| 2834 | } |
| 2835 | mdelay(1); |
| 2836 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2837 | tc_writel(0, &tr->MAC_Ctl); |
| 2838 | |
| 2839 | /* initialize registers to default value */ |
| 2840 | tc_writel(0, &tr->DMA_Ctl); |
| 2841 | tc_writel(0, &tr->TxThrsh); |
| 2842 | tc_writel(0, &tr->TxPollCtr); |
| 2843 | tc_writel(0, &tr->RxFragSize); |
| 2844 | tc_writel(0, &tr->Int_En); |
| 2845 | tc_writel(0, &tr->FDA_Bas); |
| 2846 | tc_writel(0, &tr->FDA_Lim); |
| 2847 | tc_writel(0xffffffff, &tr->Int_Src); /* Write 1 to clear */ |
| 2848 | tc_writel(0, &tr->CAM_Ctl); |
| 2849 | tc_writel(0, &tr->Tx_Ctl); |
| 2850 | tc_writel(0, &tr->Rx_Ctl); |
| 2851 | tc_writel(0, &tr->CAM_Ena); |
| 2852 | (void)tc_readl(&tr->Miss_Cnt); /* Read to clear */ |
| 2853 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 2854 | /* initialize internal SRAM */ |
| 2855 | tc_writel(DMA_TestMode, &tr->DMA_Ctl); |
| 2856 | for (i = 0; i < 0x1000; i += 4) { |
| 2857 | tc_writel(i, &tr->CAM_Adr); |
| 2858 | tc_writel(0, &tr->CAM_Data); |
| 2859 | } |
| 2860 | tc_writel(0, &tr->DMA_Ctl); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2861 | } |
| 2862 | |
| 2863 | static void tc35815_chip_init(struct net_device *dev) |
| 2864 | { |
| 2865 | struct tc35815_local *lp = dev->priv; |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 2866 | struct tc35815_regs __iomem *tr = |
| 2867 | (struct tc35815_regs __iomem *)dev->base_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2868 | unsigned long txctl = TX_CTL_CMD; |
| 2869 | |
| 2870 | tc35815_phy_chip_init(dev); |
| 2871 | |
| 2872 | /* load station address to CAM */ |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 2873 | tc35815_set_cam_entry(dev, CAM_ENTRY_SOURCE, dev->dev_addr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2874 | |
| 2875 | /* Enable CAM (broadcast and unicast) */ |
| 2876 | tc_writel(CAM_Ena_Bit(CAM_ENTRY_SOURCE), &tr->CAM_Ena); |
| 2877 | tc_writel(CAM_CompEn | CAM_BroadAcc, &tr->CAM_Ctl); |
| 2878 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 2879 | /* Use DMA_RxAlign_2 to make IP header 4-byte aligned. */ |
| 2880 | if (HAVE_DMA_RXALIGN(lp)) |
| 2881 | tc_writel(DMA_BURST_SIZE | DMA_RxAlign_2, &tr->DMA_Ctl); |
| 2882 | else |
| 2883 | tc_writel(DMA_BURST_SIZE, &tr->DMA_Ctl); |
| 2884 | #ifdef TC35815_USE_PACKEDBUFFER |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2885 | tc_writel(RxFrag_EnPack | ETH_ZLEN, &tr->RxFragSize); /* Packing */ |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 2886 | #else |
| 2887 | tc_writel(ETH_ZLEN, &tr->RxFragSize); |
| 2888 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2889 | tc_writel(0, &tr->TxPollCtr); /* Batch mode */ |
| 2890 | tc_writel(TX_THRESHOLD, &tr->TxThrsh); |
| 2891 | tc_writel(INT_EN_CMD, &tr->Int_En); |
| 2892 | |
| 2893 | /* set queues */ |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 2894 | 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] | 2895 | tc_writel((unsigned long)lp->rfd_limit - (unsigned long)lp->rfd_base, |
| 2896 | &tr->FDA_Lim); |
| 2897 | /* |
| 2898 | * Activation method: |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 2899 | * First, enable the MAC Transmitter and the DMA Receive circuits. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2900 | * Then enable the DMA Transmitter and the MAC Receive circuits. |
| 2901 | */ |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 2902 | 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] | 2903 | tc_writel(RX_CTL_CMD, &tr->Rx_Ctl); /* start MAC receiver */ |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 2904 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2905 | /* start MAC transmitter */ |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 2906 | #ifndef NO_CHECK_CARRIER |
| 2907 | /* TX4939 does not have EnLCarr */ |
| 2908 | if (lp->boardtype == TC35815_TX4939) |
| 2909 | txctl &= ~Tx_EnLCarr; |
| 2910 | #ifdef WORKAROUND_LOSTCAR |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2911 | /* WORKAROUND: ignore LostCrS in full duplex operation */ |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 2912 | if ((lp->timer_state != asleep && lp->timer_state != lcheck) || |
| 2913 | lp->fullduplex) |
| 2914 | txctl &= ~Tx_EnLCarr; |
| 2915 | #endif |
| 2916 | #endif /* !NO_CHECK_CARRIER */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2917 | #ifdef GATHER_TXINT |
| 2918 | txctl &= ~Tx_EnComp; /* disable global tx completion int. */ |
| 2919 | #endif |
| 2920 | tc_writel(txctl, &tr->Tx_Ctl); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2921 | } |
| 2922 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 2923 | #ifdef CONFIG_PM |
| 2924 | static int tc35815_suspend(struct pci_dev *pdev, pm_message_t state) |
| 2925 | { |
| 2926 | struct net_device *dev = pci_get_drvdata(pdev); |
| 2927 | struct tc35815_local *lp = dev->priv; |
| 2928 | unsigned long flags; |
| 2929 | |
| 2930 | pci_save_state(pdev); |
| 2931 | if (!netif_running(dev)) |
| 2932 | return 0; |
| 2933 | netif_device_detach(dev); |
| 2934 | spin_lock_irqsave(&lp->lock, flags); |
| 2935 | del_timer(&lp->timer); /* Kill if running */ |
| 2936 | tc35815_chip_reset(dev); |
| 2937 | spin_unlock_irqrestore(&lp->lock, flags); |
| 2938 | pci_set_power_state(pdev, PCI_D3hot); |
| 2939 | return 0; |
| 2940 | } |
| 2941 | |
| 2942 | static int tc35815_resume(struct pci_dev *pdev) |
| 2943 | { |
| 2944 | struct net_device *dev = pci_get_drvdata(pdev); |
| 2945 | struct tc35815_local *lp = dev->priv; |
| 2946 | unsigned long flags; |
| 2947 | |
| 2948 | pci_restore_state(pdev); |
| 2949 | if (!netif_running(dev)) |
| 2950 | return 0; |
| 2951 | pci_set_power_state(pdev, PCI_D0); |
| 2952 | spin_lock_irqsave(&lp->lock, flags); |
| 2953 | tc35815_restart(dev); |
| 2954 | spin_unlock_irqrestore(&lp->lock, flags); |
| 2955 | netif_device_attach(dev); |
| 2956 | return 0; |
| 2957 | } |
| 2958 | #endif /* CONFIG_PM */ |
| 2959 | |
| 2960 | static struct pci_driver tc35815_pci_driver = { |
| 2961 | .name = MODNAME, |
| 2962 | .id_table = tc35815_pci_tbl, |
| 2963 | .probe = tc35815_init_one, |
| 2964 | .remove = __devexit_p(tc35815_remove_one), |
| 2965 | #ifdef CONFIG_PM |
| 2966 | .suspend = tc35815_suspend, |
| 2967 | .resume = tc35815_resume, |
| 2968 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2969 | }; |
| 2970 | |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 2971 | module_param_named(speed, options.speed, int, 0); |
| 2972 | MODULE_PARM_DESC(speed, "0:auto, 10:10Mbps, 100:100Mbps"); |
| 2973 | module_param_named(duplex, options.duplex, int, 0); |
| 2974 | MODULE_PARM_DESC(duplex, "0:auto, 1:half, 2:full"); |
| 2975 | module_param_named(doforce, options.doforce, int, 0); |
| 2976 | MODULE_PARM_DESC(doforce, "try force link mode if auto-negotiation failed"); |
| 2977 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2978 | static int __init tc35815_init_module(void) |
| 2979 | { |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 2980 | return pci_register_driver(&tc35815_pci_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2981 | } |
| 2982 | |
| 2983 | static void __exit tc35815_cleanup_module(void) |
| 2984 | { |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 2985 | pci_unregister_driver(&tc35815_pci_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2986 | } |
Jeff Garzik | 420e852 | 2007-02-24 17:02:16 -0500 | [diff] [blame] | 2987 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2988 | module_init(tc35815_init_module); |
| 2989 | module_exit(tc35815_cleanup_module); |
Atsushi Nemoto | eea221c | 2007-03-03 23:54:59 +0900 | [diff] [blame] | 2990 | |
| 2991 | MODULE_DESCRIPTION("TOSHIBA TC35815 PCI 10M/100M Ethernet driver"); |
| 2992 | MODULE_LICENSE("GPL"); |