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Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001/*
2 * tc35815.c: A TOSHIBA TC35815CF PCI 10/100Mbps ethernet driver for linux.
Linus Torvalds1da177e2005-04-16 15:20:36 -07003 *
4 * Based on skelton.c by Donald Becker.
Linus Torvalds1da177e2005-04-16 15:20:36 -07005 *
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09006 * 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 Torvalds1da177e2005-04-16 15:20:36 -070016 *
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +090017 * 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 Torvalds1da177e2005-04-16 15:20:36 -070020 *
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +090021 * (C) Copyright TOSHIBA CORPORATION 2004-2005
22 * All Rights Reserved.
Linus Torvalds1da177e2005-04-16 15:20:36 -070023 */
24
Atsushi Nemotoc6a2dbb2009-11-02 04:34:46 +000025#define DRV_VERSION "1.39"
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +090026static const char *version = "tc35815.c:v" DRV_VERSION "\n";
27#define MODNAME "tc35815"
Linus Torvalds1da177e2005-04-16 15:20:36 -070028
29#include <linux/module.h>
30#include <linux/kernel.h>
31#include <linux/types.h>
32#include <linux/fcntl.h>
33#include <linux/interrupt.h>
34#include <linux/ioport.h>
35#include <linux/in.h>
Atsushi Nemoto82a99282008-12-11 20:58:04 -080036#include <linux/if_vlan.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070037#include <linux/slab.h>
38#include <linux/string.h>
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +090039#include <linux/spinlock.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070040#include <linux/errno.h>
41#include <linux/init.h>
42#include <linux/netdevice.h>
43#include <linux/etherdevice.h>
44#include <linux/skbuff.h>
45#include <linux/delay.h>
46#include <linux/pci.h>
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +090047#include <linux/phy.h>
48#include <linux/workqueue.h>
Atsushi Nemotobd43da82007-06-29 22:34:53 +090049#include <linux/platform_device.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070050#include <asm/io.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070051#include <asm/byteorder.h>
52
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +090053enum tc35815_chiptype {
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +090054 TC35815CF = 0,
55 TC35815_NWU,
56 TC35815_TX4939,
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +090057};
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +090058
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +090059/* indexed by tc35815_chiptype, above */
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +090060static const struct {
61 const char *name;
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +090062} chip_info[] __devinitdata = {
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +090063 { "TOSHIBA TC35815CF 10/100BaseTX" },
64 { "TOSHIBA TC35815 with Wake on LAN" },
65 { "TOSHIBA TC35815/TX4939" },
66};
67
Alexey Dobriyana3aa1882010-01-07 11:58:11 +000068static DEFINE_PCI_DEVICE_TABLE(tc35815_pci_tbl) = {
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +090069 {PCI_DEVICE(PCI_VENDOR_ID_TOSHIBA_2, PCI_DEVICE_ID_TOSHIBA_TC35815CF), .driver_data = TC35815CF },
70 {PCI_DEVICE(PCI_VENDOR_ID_TOSHIBA_2, PCI_DEVICE_ID_TOSHIBA_TC35815_NWU), .driver_data = TC35815_NWU },
71 {PCI_DEVICE(PCI_VENDOR_ID_TOSHIBA_2, PCI_DEVICE_ID_TOSHIBA_TC35815_TX4939), .driver_data = TC35815_TX4939 },
72 {0,}
73};
Atsushi Nemoto7f225b42008-04-11 00:25:31 +090074MODULE_DEVICE_TABLE(pci, tc35815_pci_tbl);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +090075
76/* see MODULE_PARM_DESC */
77static struct tc35815_options {
78 int speed;
79 int duplex;
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +090080} options;
Linus Torvalds1da177e2005-04-16 15:20:36 -070081
82/*
83 * Registers
84 */
85struct tc35815_regs {
Atsushi Nemoto22adf7e2008-04-11 00:24:45 +090086 __u32 DMA_Ctl; /* 0x00 */
87 __u32 TxFrmPtr;
88 __u32 TxThrsh;
89 __u32 TxPollCtr;
90 __u32 BLFrmPtr;
91 __u32 RxFragSize;
92 __u32 Int_En;
93 __u32 FDA_Bas;
94 __u32 FDA_Lim; /* 0x20 */
95 __u32 Int_Src;
96 __u32 unused0[2];
97 __u32 PauseCnt;
98 __u32 RemPauCnt;
99 __u32 TxCtlFrmStat;
100 __u32 unused1;
101 __u32 MAC_Ctl; /* 0x40 */
102 __u32 CAM_Ctl;
103 __u32 Tx_Ctl;
104 __u32 Tx_Stat;
105 __u32 Rx_Ctl;
106 __u32 Rx_Stat;
107 __u32 MD_Data;
108 __u32 MD_CA;
109 __u32 CAM_Adr; /* 0x60 */
110 __u32 CAM_Data;
111 __u32 CAM_Ena;
112 __u32 PROM_Ctl;
113 __u32 PROM_Data;
114 __u32 Algn_Cnt;
115 __u32 CRC_Cnt;
116 __u32 Miss_Cnt;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700117};
118
119/*
120 * Bit assignments
121 */
122/* DMA_Ctl bit asign ------------------------------------------------------- */
Atsushi Nemoto7f225b42008-04-11 00:25:31 +0900123#define DMA_RxAlign 0x00c00000 /* 1:Reception Alignment */
124#define DMA_RxAlign_1 0x00400000
125#define DMA_RxAlign_2 0x00800000
126#define DMA_RxAlign_3 0x00c00000
127#define DMA_M66EnStat 0x00080000 /* 1:66MHz Enable State */
128#define DMA_IntMask 0x00040000 /* 1:Interupt mask */
129#define DMA_SWIntReq 0x00020000 /* 1:Software Interrupt request */
130#define DMA_TxWakeUp 0x00010000 /* 1:Transmit Wake Up */
131#define DMA_RxBigE 0x00008000 /* 1:Receive Big Endian */
132#define DMA_TxBigE 0x00004000 /* 1:Transmit Big Endian */
133#define DMA_TestMode 0x00002000 /* 1:Test Mode */
134#define DMA_PowrMgmnt 0x00001000 /* 1:Power Management */
135#define DMA_DmBurst_Mask 0x000001fc /* DMA Burst size */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700136
137/* RxFragSize bit asign ---------------------------------------------------- */
Atsushi Nemoto7f225b42008-04-11 00:25:31 +0900138#define RxFrag_EnPack 0x00008000 /* 1:Enable Packing */
139#define RxFrag_MinFragMask 0x00000ffc /* Minimum Fragment */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700140
141/* MAC_Ctl bit asign ------------------------------------------------------- */
Atsushi Nemoto7f225b42008-04-11 00:25:31 +0900142#define MAC_Link10 0x00008000 /* 1:Link Status 10Mbits */
143#define MAC_EnMissRoll 0x00002000 /* 1:Enable Missed Roll */
144#define MAC_MissRoll 0x00000400 /* 1:Missed Roll */
145#define MAC_Loop10 0x00000080 /* 1:Loop 10 Mbps */
146#define MAC_Conn_Auto 0x00000000 /*00:Connection mode (Automatic) */
147#define MAC_Conn_10M 0x00000020 /*01: (10Mbps endec)*/
148#define MAC_Conn_Mll 0x00000040 /*10: (Mll clock) */
149#define MAC_MacLoop 0x00000010 /* 1:MAC Loopback */
150#define MAC_FullDup 0x00000008 /* 1:Full Duplex 0:Half Duplex */
151#define MAC_Reset 0x00000004 /* 1:Software Reset */
152#define MAC_HaltImm 0x00000002 /* 1:Halt Immediate */
153#define MAC_HaltReq 0x00000001 /* 1:Halt request */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700154
155/* PROM_Ctl bit asign ------------------------------------------------------ */
Atsushi Nemoto7f225b42008-04-11 00:25:31 +0900156#define PROM_Busy 0x00008000 /* 1:Busy (Start Operation) */
157#define PROM_Read 0x00004000 /*10:Read operation */
158#define PROM_Write 0x00002000 /*01:Write operation */
159#define PROM_Erase 0x00006000 /*11:Erase operation */
160 /*00:Enable or Disable Writting, */
161 /* as specified in PROM_Addr. */
162#define PROM_Addr_Ena 0x00000030 /*11xxxx:PROM Write enable */
163 /*00xxxx: disable */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700164
165/* CAM_Ctl bit asign ------------------------------------------------------- */
Atsushi Nemoto7f225b42008-04-11 00:25:31 +0900166#define CAM_CompEn 0x00000010 /* 1:CAM Compare Enable */
167#define CAM_NegCAM 0x00000008 /* 1:Reject packets CAM recognizes,*/
168 /* accept other */
169#define CAM_BroadAcc 0x00000004 /* 1:Broadcast assept */
170#define CAM_GroupAcc 0x00000002 /* 1:Multicast assept */
171#define CAM_StationAcc 0x00000001 /* 1:unicast accept */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700172
173/* CAM_Ena bit asign ------------------------------------------------------- */
Atsushi Nemoto7f225b42008-04-11 00:25:31 +0900174#define CAM_ENTRY_MAX 21 /* CAM Data entry max count */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700175#define CAM_Ena_Mask ((1<<CAM_ENTRY_MAX)-1) /* CAM Enable bits (Max 21bits) */
Atsushi Nemoto7f225b42008-04-11 00:25:31 +0900176#define CAM_Ena_Bit(index) (1 << (index))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700177#define CAM_ENTRY_DESTINATION 0
178#define CAM_ENTRY_SOURCE 1
179#define CAM_ENTRY_MACCTL 20
180
181/* Tx_Ctl bit asign -------------------------------------------------------- */
Atsushi Nemoto7f225b42008-04-11 00:25:31 +0900182#define Tx_En 0x00000001 /* 1:Transmit enable */
183#define Tx_TxHalt 0x00000002 /* 1:Transmit Halt Request */
184#define Tx_NoPad 0x00000004 /* 1:Suppress Padding */
185#define Tx_NoCRC 0x00000008 /* 1:Suppress Padding */
186#define Tx_FBack 0x00000010 /* 1:Fast Back-off */
187#define Tx_EnUnder 0x00000100 /* 1:Enable Underrun */
188#define Tx_EnExDefer 0x00000200 /* 1:Enable Excessive Deferral */
189#define Tx_EnLCarr 0x00000400 /* 1:Enable Lost Carrier */
190#define Tx_EnExColl 0x00000800 /* 1:Enable Excessive Collision */
191#define Tx_EnLateColl 0x00001000 /* 1:Enable Late Collision */
192#define Tx_EnTxPar 0x00002000 /* 1:Enable Transmit Parity */
193#define Tx_EnComp 0x00004000 /* 1:Enable Completion */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700194
195/* Tx_Stat bit asign ------------------------------------------------------- */
Atsushi Nemoto7f225b42008-04-11 00:25:31 +0900196#define Tx_TxColl_MASK 0x0000000F /* Tx Collision Count */
197#define Tx_ExColl 0x00000010 /* Excessive Collision */
198#define Tx_TXDefer 0x00000020 /* Transmit Defered */
199#define Tx_Paused 0x00000040 /* Transmit Paused */
200#define Tx_IntTx 0x00000080 /* Interrupt on Tx */
201#define Tx_Under 0x00000100 /* Underrun */
202#define Tx_Defer 0x00000200 /* Deferral */
203#define Tx_NCarr 0x00000400 /* No Carrier */
204#define Tx_10Stat 0x00000800 /* 10Mbps Status */
205#define Tx_LateColl 0x00001000 /* Late Collision */
206#define Tx_TxPar 0x00002000 /* Tx Parity Error */
207#define Tx_Comp 0x00004000 /* Completion */
208#define Tx_Halted 0x00008000 /* Tx Halted */
209#define Tx_SQErr 0x00010000 /* Signal Quality Error(SQE) */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700210
211/* Rx_Ctl bit asign -------------------------------------------------------- */
Atsushi Nemoto7f225b42008-04-11 00:25:31 +0900212#define Rx_EnGood 0x00004000 /* 1:Enable Good */
213#define Rx_EnRxPar 0x00002000 /* 1:Enable Receive Parity */
214#define Rx_EnLongErr 0x00000800 /* 1:Enable Long Error */
215#define Rx_EnOver 0x00000400 /* 1:Enable OverFlow */
216#define Rx_EnCRCErr 0x00000200 /* 1:Enable CRC Error */
217#define Rx_EnAlign 0x00000100 /* 1:Enable Alignment */
218#define Rx_IgnoreCRC 0x00000040 /* 1:Ignore CRC Value */
219#define Rx_StripCRC 0x00000010 /* 1:Strip CRC Value */
220#define Rx_ShortEn 0x00000008 /* 1:Short Enable */
221#define Rx_LongEn 0x00000004 /* 1:Long Enable */
222#define Rx_RxHalt 0x00000002 /* 1:Receive Halt Request */
223#define Rx_RxEn 0x00000001 /* 1:Receive Intrrupt Enable */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700224
225/* Rx_Stat bit asign ------------------------------------------------------- */
Atsushi Nemoto7f225b42008-04-11 00:25:31 +0900226#define Rx_Halted 0x00008000 /* Rx Halted */
227#define Rx_Good 0x00004000 /* Rx Good */
228#define Rx_RxPar 0x00002000 /* Rx Parity Error */
Atsushi Nemoto842e08b2008-10-28 22:30:23 +0900229#define Rx_TypePkt 0x00001000 /* Rx Type Packet */
Atsushi Nemoto7f225b42008-04-11 00:25:31 +0900230#define Rx_LongErr 0x00000800 /* Rx Long Error */
231#define Rx_Over 0x00000400 /* Rx Overflow */
232#define Rx_CRCErr 0x00000200 /* Rx CRC Error */
233#define Rx_Align 0x00000100 /* Rx Alignment Error */
234#define Rx_10Stat 0x00000080 /* Rx 10Mbps Status */
235#define Rx_IntRx 0x00000040 /* Rx Interrupt */
236#define Rx_CtlRecd 0x00000020 /* Rx Control Receive */
Atsushi Nemoto842e08b2008-10-28 22:30:23 +0900237#define Rx_InLenErr 0x00000010 /* Rx In Range Frame Length Error */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700238
Atsushi Nemoto842e08b2008-10-28 22:30:23 +0900239#define Rx_Stat_Mask 0x0000FFF0 /* Rx All Status Mask */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700240
241/* Int_En bit asign -------------------------------------------------------- */
Atsushi Nemoto7f225b42008-04-11 00:25:31 +0900242#define Int_NRAbtEn 0x00000800 /* 1:Non-recoverable Abort Enable */
243#define Int_TxCtlCmpEn 0x00000400 /* 1:Transmit Ctl Complete Enable */
244#define Int_DmParErrEn 0x00000200 /* 1:DMA Parity Error Enable */
245#define Int_DParDEn 0x00000100 /* 1:Data Parity Error Enable */
246#define Int_EarNotEn 0x00000080 /* 1:Early Notify Enable */
247#define Int_DParErrEn 0x00000040 /* 1:Detected Parity Error Enable */
248#define Int_SSysErrEn 0x00000020 /* 1:Signalled System Error Enable */
249#define Int_RMasAbtEn 0x00000010 /* 1:Received Master Abort Enable */
250#define Int_RTargAbtEn 0x00000008 /* 1:Received Target Abort Enable */
251#define Int_STargAbtEn 0x00000004 /* 1:Signalled Target Abort Enable */
252#define Int_BLExEn 0x00000002 /* 1:Buffer List Exhausted Enable */
253#define Int_FDAExEn 0x00000001 /* 1:Free Descriptor Area */
254 /* Exhausted Enable */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700255
256/* Int_Src bit asign ------------------------------------------------------- */
Atsushi Nemoto7f225b42008-04-11 00:25:31 +0900257#define Int_NRabt 0x00004000 /* 1:Non Recoverable error */
258#define Int_DmParErrStat 0x00002000 /* 1:DMA Parity Error & Clear */
259#define Int_BLEx 0x00001000 /* 1:Buffer List Empty & Clear */
260#define Int_FDAEx 0x00000800 /* 1:FDA Empty & Clear */
261#define Int_IntNRAbt 0x00000400 /* 1:Non Recoverable Abort */
262#define Int_IntCmp 0x00000200 /* 1:MAC control packet complete */
263#define Int_IntExBD 0x00000100 /* 1:Interrupt Extra BD & Clear */
264#define Int_DmParErr 0x00000080 /* 1:DMA Parity Error & Clear */
265#define Int_IntEarNot 0x00000040 /* 1:Receive Data write & Clear */
266#define Int_SWInt 0x00000020 /* 1:Software request & Clear */
267#define Int_IntBLEx 0x00000010 /* 1:Buffer List Empty & Clear */
268#define Int_IntFDAEx 0x00000008 /* 1:FDA Empty & Clear */
269#define Int_IntPCI 0x00000004 /* 1:PCI controller & Clear */
270#define Int_IntMacRx 0x00000002 /* 1:Rx controller & Clear */
271#define Int_IntMacTx 0x00000001 /* 1:Tx controller & Clear */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700272
273/* MD_CA bit asign --------------------------------------------------------- */
Atsushi Nemoto7f225b42008-04-11 00:25:31 +0900274#define MD_CA_PreSup 0x00001000 /* 1:Preamble Supress */
275#define MD_CA_Busy 0x00000800 /* 1:Busy (Start Operation) */
276#define MD_CA_Wr 0x00000400 /* 1:Write 0:Read */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700277
278
Linus Torvalds1da177e2005-04-16 15:20:36 -0700279/*
280 * Descriptors
281 */
282
283/* Frame descripter */
284struct FDesc {
285 volatile __u32 FDNext;
286 volatile __u32 FDSystem;
287 volatile __u32 FDStat;
288 volatile __u32 FDCtl;
289};
290
291/* Buffer descripter */
292struct BDesc {
293 volatile __u32 BuffData;
294 volatile __u32 BDCtl;
295};
296
297#define FD_ALIGN 16
298
299/* Frame Descripter bit asign ---------------------------------------------- */
Atsushi Nemoto7f225b42008-04-11 00:25:31 +0900300#define FD_FDLength_MASK 0x0000FFFF /* Length MASK */
301#define FD_BDCnt_MASK 0x001F0000 /* BD count MASK in FD */
302#define FD_FrmOpt_MASK 0x7C000000 /* Frame option MASK */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700303#define FD_FrmOpt_BigEndian 0x40000000 /* Tx/Rx */
Atsushi Nemoto7f225b42008-04-11 00:25:31 +0900304#define FD_FrmOpt_IntTx 0x20000000 /* Tx only */
305#define FD_FrmOpt_NoCRC 0x10000000 /* Tx only */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700306#define FD_FrmOpt_NoPadding 0x08000000 /* Tx only */
307#define FD_FrmOpt_Packing 0x04000000 /* Rx only */
Atsushi Nemoto7f225b42008-04-11 00:25:31 +0900308#define FD_CownsFD 0x80000000 /* FD Controller owner bit */
309#define FD_Next_EOL 0x00000001 /* FD EOL indicator */
310#define FD_BDCnt_SHIFT 16
Linus Torvalds1da177e2005-04-16 15:20:36 -0700311
312/* Buffer Descripter bit asign --------------------------------------------- */
Atsushi Nemoto7f225b42008-04-11 00:25:31 +0900313#define BD_BuffLength_MASK 0x0000FFFF /* Recieve Data Size */
314#define BD_RxBDID_MASK 0x00FF0000 /* BD ID Number MASK */
315#define BD_RxBDSeqN_MASK 0x7F000000 /* Rx BD Sequence Number */
316#define BD_CownsBD 0x80000000 /* BD Controller owner bit */
317#define BD_RxBDID_SHIFT 16
Linus Torvalds1da177e2005-04-16 15:20:36 -0700318#define BD_RxBDSeqN_SHIFT 24
319
320
321/* Some useful constants. */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700322
Atsushi Nemotoa02b7b72009-11-02 04:34:47 +0000323#define TX_CTL_CMD (Tx_EnTxPar | Tx_EnLateColl | \
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900324 Tx_EnExColl | Tx_EnLCarr | Tx_EnExDefer | Tx_EnUnder | \
325 Tx_En) /* maybe 0x7b01 */
Atsushi Nemoto297713d2009-08-06 04:41:45 +0000326/* Do not use Rx_StripCRC -- it causes trouble on BLEx/FDAEx condition */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700327#define RX_CTL_CMD (Rx_EnGood | Rx_EnRxPar | Rx_EnLongErr | Rx_EnOver \
Atsushi Nemoto297713d2009-08-06 04:41:45 +0000328 | Rx_EnCRCErr | Rx_EnAlign | Rx_RxEn) /* maybe 0x6f01 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700329#define INT_EN_CMD (Int_NRAbtEn | \
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900330 Int_DmParErrEn | Int_DParDEn | Int_DParErrEn | \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700331 Int_SSysErrEn | Int_RMasAbtEn | Int_RTargAbtEn | \
332 Int_STargAbtEn | \
333 Int_BLExEn | Int_FDAExEn) /* maybe 0xb7f*/
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900334#define DMA_CTL_CMD DMA_BURST_SIZE
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +0900335#define HAVE_DMA_RXALIGN(lp) likely((lp)->chiptype != TC35815CF)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700336
337/* Tuning parameters */
338#define DMA_BURST_SIZE 32
339#define TX_THRESHOLD 1024
Atsushi Nemoto7f225b42008-04-11 00:25:31 +0900340/* used threshold with packet max byte for low pci transfer ability.*/
341#define TX_THRESHOLD_MAX 1536
342/* setting threshold max value when overrun error occured this count. */
343#define TX_THRESHOLD_KEEP_LIMIT 10
Linus Torvalds1da177e2005-04-16 15:20:36 -0700344
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900345/* 16 + RX_BUF_NUM * 8 + RX_FD_NUM * 16 + TX_FD_NUM * 32 <= PAGE_SIZE*FD_PAGE_NUM */
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900346#define FD_PAGE_NUM 4
347#define RX_BUF_NUM 128 /* < 256 */
348#define RX_FD_NUM 256 /* >= 32 */
349#define TX_FD_NUM 128
350#if RX_CTL_CMD & Rx_LongEn
351#define RX_BUF_SIZE PAGE_SIZE
352#elif RX_CTL_CMD & Rx_StripCRC
Atsushi Nemoto82a99282008-12-11 20:58:04 -0800353#define RX_BUF_SIZE \
354 L1_CACHE_ALIGN(ETH_FRAME_LEN + VLAN_HLEN + NET_IP_ALIGN)
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900355#else
Atsushi Nemoto82a99282008-12-11 20:58:04 -0800356#define RX_BUF_SIZE \
357 L1_CACHE_ALIGN(ETH_FRAME_LEN + VLAN_HLEN + ETH_FCS_LEN + NET_IP_ALIGN)
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900358#endif
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900359#define RX_FD_RESERVE (2 / 2) /* max 2 BD per RxFD */
360#define NAPI_WEIGHT 16
Linus Torvalds1da177e2005-04-16 15:20:36 -0700361
362struct TxFD {
363 struct FDesc fd;
364 struct BDesc bd;
365 struct BDesc unused;
366};
367
368struct RxFD {
369 struct FDesc fd;
370 struct BDesc bd[0]; /* variable length */
371};
372
373struct FrFD {
374 struct FDesc fd;
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900375 struct BDesc bd[RX_BUF_NUM];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700376};
377
378
Atsushi Nemoto22adf7e2008-04-11 00:24:45 +0900379#define tc_readl(addr) ioread32(addr)
380#define tc_writel(d, addr) iowrite32(d, addr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700381
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900382#define TC35815_TX_TIMEOUT msecs_to_jiffies(400)
383
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +0900384/* Information that need to be kept for each controller. */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700385struct tc35815_local {
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900386 struct pci_dev *pci_dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700387
Stephen Hemmingerbea33482007-10-03 16:41:36 -0700388 struct net_device *dev;
389 struct napi_struct napi;
390
Linus Torvalds1da177e2005-04-16 15:20:36 -0700391 /* statistics */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700392 struct {
393 int max_tx_qlen;
394 int tx_ints;
395 int rx_ints;
Atsushi Nemoto7f225b42008-04-11 00:25:31 +0900396 int tx_underrun;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700397 } lstats;
398
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900399 /* Tx control lock. This protects the transmit buffer ring
400 * state along with the "tx full" state of the driver. This
401 * means all netif_queue flow control actions are protected
402 * by this lock as well.
403 */
404 spinlock_t lock;
Atsushi Nemotodee73992010-02-24 06:00:34 +0000405 spinlock_t rx_lock;
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900406
Lennert Buytenhek298cf9be2008-10-08 16:29:57 -0700407 struct mii_bus *mii_bus;
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +0900408 struct phy_device *phy_dev;
409 int duplex;
410 int speed;
411 int link;
412 struct work_struct restart_work;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700413
414 /*
415 * Transmitting: Batch Mode.
416 * 1 BD in 1 TxFD.
Atsushi Nemotoa02b7b72009-11-02 04:34:47 +0000417 * Receiving: Non-Packing Mode.
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900418 * 1 circular FD for Free Buffer List.
419 * RX_BUF_NUM BD in Free Buffer FD.
420 * One Free Buffer BD has ETH_FRAME_LEN data buffer.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700421 */
Atsushi Nemoto7f225b42008-04-11 00:25:31 +0900422 void *fd_buf; /* for TxFD, RxFD, FrFD */
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900423 dma_addr_t fd_buf_dma;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700424 struct TxFD *tfd_base;
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900425 unsigned int tfd_start;
426 unsigned int tfd_end;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700427 struct RxFD *rfd_base;
428 struct RxFD *rfd_limit;
429 struct RxFD *rfd_cur;
430 struct FrFD *fbl_ptr;
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900431 unsigned int fbl_count;
432 struct {
433 struct sk_buff *skb;
434 dma_addr_t skb_dma;
435 } tx_skbs[TX_FD_NUM], rx_skbs[RX_BUF_NUM];
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900436 u32 msg_enable;
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +0900437 enum tc35815_chiptype chiptype;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700438};
439
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900440static inline dma_addr_t fd_virt_to_bus(struct tc35815_local *lp, void *virt)
441{
442 return lp->fd_buf_dma + ((u8 *)virt - (u8 *)lp->fd_buf);
443}
444#ifdef DEBUG
445static inline void *fd_bus_to_virt(struct tc35815_local *lp, dma_addr_t bus)
446{
447 return (void *)((u8 *)lp->fd_buf + (bus - lp->fd_buf_dma));
448}
449#endif
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900450static struct sk_buff *alloc_rxbuf_skb(struct net_device *dev,
451 struct pci_dev *hwdev,
452 dma_addr_t *dma_handle)
453{
454 struct sk_buff *skb;
455 skb = dev_alloc_skb(RX_BUF_SIZE);
456 if (!skb)
457 return NULL;
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900458 *dma_handle = pci_map_single(hwdev, skb->data, RX_BUF_SIZE,
459 PCI_DMA_FROMDEVICE);
FUJITA Tomonori8d8bb392008-07-25 19:44:49 -0700460 if (pci_dma_mapping_error(hwdev, *dma_handle)) {
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900461 dev_kfree_skb_any(skb);
462 return NULL;
463 }
464 skb_reserve(skb, 2); /* make IP header 4byte aligned */
465 return skb;
466}
467
468static void free_rxbuf_skb(struct pci_dev *hwdev, struct sk_buff *skb, dma_addr_t dma_handle)
469{
470 pci_unmap_single(hwdev, dma_handle, RX_BUF_SIZE,
471 PCI_DMA_FROMDEVICE);
472 dev_kfree_skb_any(skb);
473}
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900474
Linus Torvalds1da177e2005-04-16 15:20:36 -0700475/* Index to functions, as function prototypes. */
476
Linus Torvalds1da177e2005-04-16 15:20:36 -0700477static int tc35815_open(struct net_device *dev);
478static int tc35815_send_packet(struct sk_buff *skb, struct net_device *dev);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900479static irqreturn_t tc35815_interrupt(int irq, void *dev_id);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900480static int tc35815_rx(struct net_device *dev, int limit);
Stephen Hemmingerbea33482007-10-03 16:41:36 -0700481static int tc35815_poll(struct napi_struct *napi, int budget);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700482static void tc35815_txdone(struct net_device *dev);
483static int tc35815_close(struct net_device *dev);
484static struct net_device_stats *tc35815_get_stats(struct net_device *dev);
485static void tc35815_set_multicast_list(struct net_device *dev);
Atsushi Nemoto7f225b42008-04-11 00:25:31 +0900486static void tc35815_tx_timeout(struct net_device *dev);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900487static int tc35815_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
488#ifdef CONFIG_NET_POLL_CONTROLLER
489static void tc35815_poll_controller(struct net_device *dev);
490#endif
491static const struct ethtool_ops tc35815_ethtool_ops;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700492
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900493/* Example routines you must write ;->. */
Atsushi Nemoto7f225b42008-04-11 00:25:31 +0900494static void tc35815_chip_reset(struct net_device *dev);
495static void tc35815_chip_init(struct net_device *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700496
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900497#ifdef DEBUG
498static void panic_queues(struct net_device *dev);
499#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700500
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +0900501static void tc35815_restart_work(struct work_struct *work);
502
503static int tc_mdio_read(struct mii_bus *bus, int mii_id, int regnum)
504{
505 struct net_device *dev = bus->priv;
506 struct tc35815_regs __iomem *tr =
507 (struct tc35815_regs __iomem *)dev->base_addr;
Atsushi Nemotoc60a5cf2009-08-06 04:41:47 +0000508 unsigned long timeout = jiffies + HZ;
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +0900509
510 tc_writel(MD_CA_Busy | (mii_id << 5) | (regnum & 0x1f), &tr->MD_CA);
Atsushi Nemotoc60a5cf2009-08-06 04:41:47 +0000511 udelay(12); /* it takes 32 x 400ns at least */
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +0900512 while (tc_readl(&tr->MD_CA) & MD_CA_Busy) {
513 if (time_after(jiffies, timeout))
514 return -EIO;
515 cpu_relax();
516 }
517 return tc_readl(&tr->MD_Data) & 0xffff;
518}
519
520static int tc_mdio_write(struct mii_bus *bus, int mii_id, int regnum, u16 val)
521{
522 struct net_device *dev = bus->priv;
523 struct tc35815_regs __iomem *tr =
524 (struct tc35815_regs __iomem *)dev->base_addr;
Atsushi Nemotoc60a5cf2009-08-06 04:41:47 +0000525 unsigned long timeout = jiffies + HZ;
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +0900526
527 tc_writel(val, &tr->MD_Data);
528 tc_writel(MD_CA_Busy | MD_CA_Wr | (mii_id << 5) | (regnum & 0x1f),
529 &tr->MD_CA);
Atsushi Nemotoc60a5cf2009-08-06 04:41:47 +0000530 udelay(12); /* it takes 32 x 400ns at least */
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +0900531 while (tc_readl(&tr->MD_CA) & MD_CA_Busy) {
532 if (time_after(jiffies, timeout))
533 return -EIO;
534 cpu_relax();
535 }
536 return 0;
537}
538
539static void tc_handle_link_change(struct net_device *dev)
540{
541 struct tc35815_local *lp = netdev_priv(dev);
542 struct phy_device *phydev = lp->phy_dev;
543 unsigned long flags;
544 int status_change = 0;
545
546 spin_lock_irqsave(&lp->lock, flags);
547 if (phydev->link &&
548 (lp->speed != phydev->speed || lp->duplex != phydev->duplex)) {
549 struct tc35815_regs __iomem *tr =
550 (struct tc35815_regs __iomem *)dev->base_addr;
551 u32 reg;
552
553 reg = tc_readl(&tr->MAC_Ctl);
554 reg |= MAC_HaltReq;
555 tc_writel(reg, &tr->MAC_Ctl);
556 if (phydev->duplex == DUPLEX_FULL)
557 reg |= MAC_FullDup;
558 else
559 reg &= ~MAC_FullDup;
560 tc_writel(reg, &tr->MAC_Ctl);
561 reg &= ~MAC_HaltReq;
562 tc_writel(reg, &tr->MAC_Ctl);
563
564 /*
565 * TX4939 PCFG.SPEEDn bit will be changed on
566 * NETDEV_CHANGE event.
567 */
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +0900568 /*
569 * WORKAROUND: enable LostCrS only if half duplex
570 * operation.
571 * (TX4939 does not have EnLCarr)
572 */
573 if (phydev->duplex == DUPLEX_HALF &&
574 lp->chiptype != TC35815_TX4939)
575 tc_writel(tc_readl(&tr->Tx_Ctl) | Tx_EnLCarr,
576 &tr->Tx_Ctl);
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +0900577
578 lp->speed = phydev->speed;
579 lp->duplex = phydev->duplex;
580 status_change = 1;
581 }
582
583 if (phydev->link != lp->link) {
584 if (phydev->link) {
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +0900585 /* delayed promiscuous enabling */
586 if (dev->flags & IFF_PROMISC)
587 tc35815_set_multicast_list(dev);
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +0900588 } else {
589 lp->speed = 0;
590 lp->duplex = -1;
591 }
592 lp->link = phydev->link;
593
594 status_change = 1;
595 }
596 spin_unlock_irqrestore(&lp->lock, flags);
597
598 if (status_change && netif_msg_link(lp)) {
599 phy_print_status(phydev);
Joe Perches72903832009-05-15 07:59:42 +0000600 pr_debug("%s: MII BMCR %04x BMSR %04x LPA %04x\n",
601 dev->name,
602 phy_read(phydev, MII_BMCR),
603 phy_read(phydev, MII_BMSR),
604 phy_read(phydev, MII_LPA));
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +0900605 }
606}
607
608static int tc_mii_probe(struct net_device *dev)
609{
610 struct tc35815_local *lp = netdev_priv(dev);
611 struct phy_device *phydev = NULL;
612 int phy_addr;
613 u32 dropmask;
614
615 /* find the first phy */
616 for (phy_addr = 0; phy_addr < PHY_MAX_ADDR; phy_addr++) {
Lennert Buytenhek298cf9be2008-10-08 16:29:57 -0700617 if (lp->mii_bus->phy_map[phy_addr]) {
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +0900618 if (phydev) {
619 printk(KERN_ERR "%s: multiple PHYs found\n",
620 dev->name);
621 return -EINVAL;
622 }
Lennert Buytenhek298cf9be2008-10-08 16:29:57 -0700623 phydev = lp->mii_bus->phy_map[phy_addr];
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +0900624 break;
625 }
626 }
627
628 if (!phydev) {
629 printk(KERN_ERR "%s: no PHY found\n", dev->name);
630 return -ENODEV;
631 }
632
633 /* attach the mac to the phy */
Kay Sieversdb1d7bf2009-01-26 21:12:58 -0800634 phydev = phy_connect(dev, dev_name(&phydev->dev),
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +0900635 &tc_handle_link_change, 0,
636 lp->chiptype == TC35815_TX4939 ?
637 PHY_INTERFACE_MODE_RMII : PHY_INTERFACE_MODE_MII);
638 if (IS_ERR(phydev)) {
639 printk(KERN_ERR "%s: Could not attach to PHY\n", dev->name);
640 return PTR_ERR(phydev);
641 }
642 printk(KERN_INFO "%s: attached PHY driver [%s] "
643 "(mii_bus:phy_addr=%s, id=%x)\n",
Kay Sieversdb1d7bf2009-01-26 21:12:58 -0800644 dev->name, phydev->drv->name, dev_name(&phydev->dev),
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +0900645 phydev->phy_id);
646
647 /* mask with MAC supported features */
648 phydev->supported &= PHY_BASIC_FEATURES;
649 dropmask = 0;
650 if (options.speed == 10)
651 dropmask |= SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full;
652 else if (options.speed == 100)
653 dropmask |= SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full;
654 if (options.duplex == 1)
655 dropmask |= SUPPORTED_10baseT_Full | SUPPORTED_100baseT_Full;
656 else if (options.duplex == 2)
657 dropmask |= SUPPORTED_10baseT_Half | SUPPORTED_100baseT_Half;
658 phydev->supported &= ~dropmask;
659 phydev->advertising = phydev->supported;
660
661 lp->link = 0;
662 lp->speed = 0;
663 lp->duplex = -1;
664 lp->phy_dev = phydev;
665
666 return 0;
667}
668
669static int tc_mii_init(struct net_device *dev)
670{
671 struct tc35815_local *lp = netdev_priv(dev);
672 int err;
673 int i;
674
Lennert Buytenhek298cf9be2008-10-08 16:29:57 -0700675 lp->mii_bus = mdiobus_alloc();
676 if (lp->mii_bus == NULL) {
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +0900677 err = -ENOMEM;
678 goto err_out;
679 }
680
Lennert Buytenhek298cf9be2008-10-08 16:29:57 -0700681 lp->mii_bus->name = "tc35815_mii_bus";
682 lp->mii_bus->read = tc_mdio_read;
683 lp->mii_bus->write = tc_mdio_write;
684 snprintf(lp->mii_bus->id, MII_BUS_ID_SIZE, "%x",
685 (lp->pci_dev->bus->number << 8) | lp->pci_dev->devfn);
686 lp->mii_bus->priv = dev;
687 lp->mii_bus->parent = &lp->pci_dev->dev;
688 lp->mii_bus->irq = kmalloc(sizeof(int) * PHY_MAX_ADDR, GFP_KERNEL);
689 if (!lp->mii_bus->irq) {
690 err = -ENOMEM;
691 goto err_out_free_mii_bus;
692 }
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +0900693
Lennert Buytenhek298cf9be2008-10-08 16:29:57 -0700694 for (i = 0; i < PHY_MAX_ADDR; i++)
695 lp->mii_bus->irq[i] = PHY_POLL;
696
697 err = mdiobus_register(lp->mii_bus);
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +0900698 if (err)
699 goto err_out_free_mdio_irq;
700 err = tc_mii_probe(dev);
701 if (err)
702 goto err_out_unregister_bus;
703 return 0;
704
705err_out_unregister_bus:
Lennert Buytenhek298cf9be2008-10-08 16:29:57 -0700706 mdiobus_unregister(lp->mii_bus);
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +0900707err_out_free_mdio_irq:
Lennert Buytenhek298cf9be2008-10-08 16:29:57 -0700708 kfree(lp->mii_bus->irq);
Adrian Bunk51cf7562008-10-12 21:01:53 -0700709err_out_free_mii_bus:
Lennert Buytenhek298cf9be2008-10-08 16:29:57 -0700710 mdiobus_free(lp->mii_bus);
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +0900711err_out:
712 return err;
713}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700714
Atsushi Nemotobd43da82007-06-29 22:34:53 +0900715#ifdef CONFIG_CPU_TX49XX
716/*
717 * Find a platform_device providing a MAC address. The platform code
718 * should provide a "tc35815-mac" device with a MAC address in its
719 * platform_data.
720 */
721static int __devinit tc35815_mac_match(struct device *dev, void *data)
722{
723 struct platform_device *plat_dev = to_platform_device(dev);
724 struct pci_dev *pci_dev = data;
Atsushi Nemoto06675e62008-01-19 01:15:52 +0900725 unsigned int id = pci_dev->irq;
Atsushi Nemotobd43da82007-06-29 22:34:53 +0900726 return !strcmp(plat_dev->name, "tc35815-mac") && plat_dev->id == id;
727}
728
729static int __devinit tc35815_read_plat_dev_addr(struct net_device *dev)
730{
Atsushi Nemotoee79b7f2008-04-11 00:24:36 +0900731 struct tc35815_local *lp = netdev_priv(dev);
Atsushi Nemotobd43da82007-06-29 22:34:53 +0900732 struct device *pd = bus_find_device(&platform_bus_type, NULL,
733 lp->pci_dev, tc35815_mac_match);
734 if (pd) {
735 if (pd->platform_data)
736 memcpy(dev->dev_addr, pd->platform_data, ETH_ALEN);
737 put_device(pd);
738 return is_valid_ether_addr(dev->dev_addr) ? 0 : -ENODEV;
739 }
740 return -ENODEV;
741}
742#else
Yoichi Yuasa308a9062007-07-18 11:13:42 +0900743static int __devinit tc35815_read_plat_dev_addr(struct net_device *dev)
Atsushi Nemotobd43da82007-06-29 22:34:53 +0900744{
745 return -ENODEV;
746}
747#endif
748
Atsushi Nemoto7f225b42008-04-11 00:25:31 +0900749static int __devinit tc35815_init_dev_addr(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700750{
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900751 struct tc35815_regs __iomem *tr =
752 (struct tc35815_regs __iomem *)dev->base_addr;
753 int i;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700754
Linus Torvalds1da177e2005-04-16 15:20:36 -0700755 while (tc_readl(&tr->PROM_Ctl) & PROM_Busy)
756 ;
757 for (i = 0; i < 6; i += 2) {
758 unsigned short data;
759 tc_writel(PROM_Busy | PROM_Read | (i / 2 + 2), &tr->PROM_Ctl);
760 while (tc_readl(&tr->PROM_Ctl) & PROM_Busy)
761 ;
762 data = tc_readl(&tr->PROM_Data);
763 dev->dev_addr[i] = data & 0xff;
764 dev->dev_addr[i+1] = data >> 8;
765 }
Atsushi Nemotobd43da82007-06-29 22:34:53 +0900766 if (!is_valid_ether_addr(dev->dev_addr))
767 return tc35815_read_plat_dev_addr(dev);
768 return 0;
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900769}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700770
Alexander Beregalov5a1c28b2009-04-11 07:38:54 +0000771static const struct net_device_ops tc35815_netdev_ops = {
772 .ndo_open = tc35815_open,
773 .ndo_stop = tc35815_close,
774 .ndo_start_xmit = tc35815_send_packet,
775 .ndo_get_stats = tc35815_get_stats,
776 .ndo_set_multicast_list = tc35815_set_multicast_list,
777 .ndo_tx_timeout = tc35815_tx_timeout,
778 .ndo_do_ioctl = tc35815_ioctl,
779 .ndo_validate_addr = eth_validate_addr,
780 .ndo_change_mtu = eth_change_mtu,
781 .ndo_set_mac_address = eth_mac_addr,
782#ifdef CONFIG_NET_POLL_CONTROLLER
783 .ndo_poll_controller = tc35815_poll_controller,
784#endif
785};
786
Atsushi Nemoto7f225b42008-04-11 00:25:31 +0900787static int __devinit tc35815_init_one(struct pci_dev *pdev,
788 const struct pci_device_id *ent)
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900789{
790 void __iomem *ioaddr = NULL;
791 struct net_device *dev;
792 struct tc35815_local *lp;
793 int rc;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700794
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900795 static int printed_version;
796 if (!printed_version++) {
797 printk(version);
798 dev_printk(KERN_DEBUG, &pdev->dev,
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +0900799 "speed:%d duplex:%d\n",
800 options.speed, options.duplex);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700801 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700802
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900803 if (!pdev->irq) {
804 dev_warn(&pdev->dev, "no IRQ assigned.\n");
805 return -ENODEV;
806 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700807
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900808 /* dev zeroed in alloc_etherdev */
Atsushi Nemoto7f225b42008-04-11 00:25:31 +0900809 dev = alloc_etherdev(sizeof(*lp));
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900810 if (dev == NULL) {
811 dev_err(&pdev->dev, "unable to alloc new ethernet\n");
812 return -ENOMEM;
813 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700814 SET_NETDEV_DEV(dev, &pdev->dev);
Atsushi Nemotoee79b7f2008-04-11 00:24:36 +0900815 lp = netdev_priv(dev);
Stephen Hemmingerbea33482007-10-03 16:41:36 -0700816 lp->dev = dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700817
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900818 /* enable device (incl. PCI PM wakeup), and bus-mastering */
Atsushi Nemoto22adf7e2008-04-11 00:24:45 +0900819 rc = pcim_enable_device(pdev);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900820 if (rc)
821 goto err_out;
Atsushi Nemoto22adf7e2008-04-11 00:24:45 +0900822 rc = pcim_iomap_regions(pdev, 1 << 1, MODNAME);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900823 if (rc)
824 goto err_out;
Atsushi Nemoto22adf7e2008-04-11 00:24:45 +0900825 pci_set_master(pdev);
826 ioaddr = pcim_iomap_table(pdev)[1];
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900827
828 /* Initialize the device structure. */
Alexander Beregalov5a1c28b2009-04-11 07:38:54 +0000829 dev->netdev_ops = &tc35815_netdev_ops;
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900830 dev->ethtool_ops = &tc35815_ethtool_ops;
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900831 dev->watchdog_timeo = TC35815_TX_TIMEOUT;
Stephen Hemmingerbea33482007-10-03 16:41:36 -0700832 netif_napi_add(dev, &lp->napi, tc35815_poll, NAPI_WEIGHT);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900833
834 dev->irq = pdev->irq;
Atsushi Nemoto7f225b42008-04-11 00:25:31 +0900835 dev->base_addr = (unsigned long)ioaddr;
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900836
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +0900837 INIT_WORK(&lp->restart_work, tc35815_restart_work);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900838 spin_lock_init(&lp->lock);
Atsushi Nemotodee73992010-02-24 06:00:34 +0000839 spin_lock_init(&lp->rx_lock);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900840 lp->pci_dev = pdev;
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +0900841 lp->chiptype = ent->driver_data;
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900842
843 lp->msg_enable = NETIF_MSG_TX_ERR | NETIF_MSG_HW | NETIF_MSG_DRV | NETIF_MSG_LINK;
844 pci_set_drvdata(pdev, dev);
845
846 /* Soft reset the chip. */
847 tc35815_chip_reset(dev);
848
849 /* Retrieve the ethernet address. */
Atsushi Nemotobd43da82007-06-29 22:34:53 +0900850 if (tc35815_init_dev_addr(dev)) {
851 dev_warn(&pdev->dev, "not valid ether addr\n");
852 random_ether_addr(dev->dev_addr);
853 }
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900854
Atsushi Nemoto7f225b42008-04-11 00:25:31 +0900855 rc = register_netdev(dev);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900856 if (rc)
Atsushi Nemoto22adf7e2008-04-11 00:24:45 +0900857 goto err_out;
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900858
859 memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
Johannes Berge1749612008-10-27 15:59:26 -0700860 printk(KERN_INFO "%s: %s at 0x%lx, %pM, IRQ %d\n",
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900861 dev->name,
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +0900862 chip_info[ent->driver_data].name,
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900863 dev->base_addr,
Johannes Berge1749612008-10-27 15:59:26 -0700864 dev->dev_addr,
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900865 dev->irq);
866
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +0900867 rc = tc_mii_init(dev);
868 if (rc)
869 goto err_out_unregister;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700870
871 return 0;
872
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +0900873err_out_unregister:
874 unregister_netdev(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700875err_out:
Atsushi Nemoto7f225b42008-04-11 00:25:31 +0900876 free_netdev(dev);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900877 return rc;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700878}
879
880
Atsushi Nemoto7f225b42008-04-11 00:25:31 +0900881static void __devexit tc35815_remove_one(struct pci_dev *pdev)
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900882{
Atsushi Nemoto7f225b42008-04-11 00:25:31 +0900883 struct net_device *dev = pci_get_drvdata(pdev);
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +0900884 struct tc35815_local *lp = netdev_priv(dev);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900885
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +0900886 phy_disconnect(lp->phy_dev);
Lennert Buytenhek298cf9be2008-10-08 16:29:57 -0700887 mdiobus_unregister(lp->mii_bus);
888 kfree(lp->mii_bus->irq);
889 mdiobus_free(lp->mii_bus);
Atsushi Nemoto7f225b42008-04-11 00:25:31 +0900890 unregister_netdev(dev);
891 free_netdev(dev);
892 pci_set_drvdata(pdev, NULL);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900893}
894
Linus Torvalds1da177e2005-04-16 15:20:36 -0700895static int
896tc35815_init_queues(struct net_device *dev)
897{
Atsushi Nemotoee79b7f2008-04-11 00:24:36 +0900898 struct tc35815_local *lp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700899 int i;
900 unsigned long fd_addr;
901
902 if (!lp->fd_buf) {
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900903 BUG_ON(sizeof(struct FDesc) +
904 sizeof(struct BDesc) * RX_BUF_NUM +
905 sizeof(struct FDesc) * RX_FD_NUM +
906 sizeof(struct TxFD) * TX_FD_NUM >
907 PAGE_SIZE * FD_PAGE_NUM);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700908
Atsushi Nemoto7f225b42008-04-11 00:25:31 +0900909 lp->fd_buf = pci_alloc_consistent(lp->pci_dev,
910 PAGE_SIZE * FD_PAGE_NUM,
911 &lp->fd_buf_dma);
912 if (!lp->fd_buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700913 return -ENOMEM;
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900914 for (i = 0; i < RX_BUF_NUM; i++) {
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900915 lp->rx_skbs[i].skb =
916 alloc_rxbuf_skb(dev, lp->pci_dev,
917 &lp->rx_skbs[i].skb_dma);
918 if (!lp->rx_skbs[i].skb) {
919 while (--i >= 0) {
920 free_rxbuf_skb(lp->pci_dev,
921 lp->rx_skbs[i].skb,
922 lp->rx_skbs[i].skb_dma);
923 lp->rx_skbs[i].skb = NULL;
924 }
925 pci_free_consistent(lp->pci_dev,
926 PAGE_SIZE * FD_PAGE_NUM,
927 lp->fd_buf,
928 lp->fd_buf_dma);
929 lp->fd_buf = NULL;
930 return -ENOMEM;
931 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700932 }
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900933 printk(KERN_DEBUG "%s: FD buf %p DataBuf",
934 dev->name, lp->fd_buf);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900935 printk("\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700936 } else {
Atsushi Nemoto7f225b42008-04-11 00:25:31 +0900937 for (i = 0; i < FD_PAGE_NUM; i++)
938 clear_page((void *)((unsigned long)lp->fd_buf +
939 i * PAGE_SIZE));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700940 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700941 fd_addr = (unsigned long)lp->fd_buf;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700942
943 /* Free Descriptors (for Receive) */
944 lp->rfd_base = (struct RxFD *)fd_addr;
945 fd_addr += sizeof(struct RxFD) * RX_FD_NUM;
Atsushi Nemoto7f225b42008-04-11 00:25:31 +0900946 for (i = 0; i < RX_FD_NUM; i++)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700947 lp->rfd_base[i].fd.FDCtl = cpu_to_le32(FD_CownsFD);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700948 lp->rfd_cur = lp->rfd_base;
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900949 lp->rfd_limit = (struct RxFD *)fd_addr - (RX_FD_RESERVE + 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700950
951 /* Transmit Descriptors */
952 lp->tfd_base = (struct TxFD *)fd_addr;
953 fd_addr += sizeof(struct TxFD) * TX_FD_NUM;
954 for (i = 0; i < TX_FD_NUM; i++) {
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900955 lp->tfd_base[i].fd.FDNext = cpu_to_le32(fd_virt_to_bus(lp, &lp->tfd_base[i+1]));
956 lp->tfd_base[i].fd.FDSystem = cpu_to_le32(0xffffffff);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700957 lp->tfd_base[i].fd.FDCtl = cpu_to_le32(0);
958 }
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900959 lp->tfd_base[TX_FD_NUM-1].fd.FDNext = cpu_to_le32(fd_virt_to_bus(lp, &lp->tfd_base[0]));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700960 lp->tfd_start = 0;
961 lp->tfd_end = 0;
962
963 /* Buffer List (for Receive) */
964 lp->fbl_ptr = (struct FrFD *)fd_addr;
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900965 lp->fbl_ptr->fd.FDNext = cpu_to_le32(fd_virt_to_bus(lp, lp->fbl_ptr));
966 lp->fbl_ptr->fd.FDCtl = cpu_to_le32(RX_BUF_NUM | FD_CownsFD);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900967 /*
968 * move all allocated skbs to head of rx_skbs[] array.
969 * fbl_count mighe not be RX_BUF_NUM if alloc_rxbuf_skb() in
970 * tc35815_rx() had failed.
971 */
972 lp->fbl_count = 0;
973 for (i = 0; i < RX_BUF_NUM; i++) {
974 if (lp->rx_skbs[i].skb) {
975 if (i != lp->fbl_count) {
976 lp->rx_skbs[lp->fbl_count].skb =
977 lp->rx_skbs[i].skb;
978 lp->rx_skbs[lp->fbl_count].skb_dma =
979 lp->rx_skbs[i].skb_dma;
980 }
981 lp->fbl_count++;
982 }
983 }
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900984 for (i = 0; i < RX_BUF_NUM; i++) {
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900985 if (i >= lp->fbl_count) {
986 lp->fbl_ptr->bd[i].BuffData = 0;
987 lp->fbl_ptr->bd[i].BDCtl = 0;
988 continue;
989 }
990 lp->fbl_ptr->bd[i].BuffData =
991 cpu_to_le32(lp->rx_skbs[i].skb_dma);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700992 /* BDID is index of FrFD.bd[] */
993 lp->fbl_ptr->bd[i].BDCtl =
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900994 cpu_to_le32(BD_CownsBD | (i << BD_RxBDID_SHIFT) |
995 RX_BUF_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700996 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700997
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +0900998 printk(KERN_DEBUG "%s: TxFD %p RxFD %p FrFD %p\n",
999 dev->name, lp->tfd_base, lp->rfd_base, lp->fbl_ptr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001000 return 0;
1001}
1002
1003static void
1004tc35815_clear_queues(struct net_device *dev)
1005{
Atsushi Nemotoee79b7f2008-04-11 00:24:36 +09001006 struct tc35815_local *lp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001007 int i;
1008
1009 for (i = 0; i < TX_FD_NUM; i++) {
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001010 u32 fdsystem = le32_to_cpu(lp->tfd_base[i].fd.FDSystem);
1011 struct sk_buff *skb =
1012 fdsystem != 0xffffffff ?
1013 lp->tx_skbs[fdsystem].skb : NULL;
1014#ifdef DEBUG
1015 if (lp->tx_skbs[i].skb != skb) {
1016 printk("%s: tx_skbs mismatch(%d).\n", dev->name, i);
1017 panic_queues(dev);
1018 }
1019#else
1020 BUG_ON(lp->tx_skbs[i].skb != skb);
1021#endif
1022 if (skb) {
1023 pci_unmap_single(lp->pci_dev, lp->tx_skbs[i].skb_dma, skb->len, PCI_DMA_TODEVICE);
1024 lp->tx_skbs[i].skb = NULL;
1025 lp->tx_skbs[i].skb_dma = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001026 dev_kfree_skb_any(skb);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001027 }
1028 lp->tfd_base[i].fd.FDSystem = cpu_to_le32(0xffffffff);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001029 }
1030
1031 tc35815_init_queues(dev);
1032}
1033
1034static void
1035tc35815_free_queues(struct net_device *dev)
1036{
Atsushi Nemotoee79b7f2008-04-11 00:24:36 +09001037 struct tc35815_local *lp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001038 int i;
1039
1040 if (lp->tfd_base) {
1041 for (i = 0; i < TX_FD_NUM; i++) {
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001042 u32 fdsystem = le32_to_cpu(lp->tfd_base[i].fd.FDSystem);
1043 struct sk_buff *skb =
1044 fdsystem != 0xffffffff ?
1045 lp->tx_skbs[fdsystem].skb : NULL;
1046#ifdef DEBUG
1047 if (lp->tx_skbs[i].skb != skb) {
1048 printk("%s: tx_skbs mismatch(%d).\n", dev->name, i);
1049 panic_queues(dev);
1050 }
1051#else
1052 BUG_ON(lp->tx_skbs[i].skb != skb);
1053#endif
1054 if (skb) {
1055 dev_kfree_skb(skb);
1056 pci_unmap_single(lp->pci_dev, lp->tx_skbs[i].skb_dma, skb->len, PCI_DMA_TODEVICE);
1057 lp->tx_skbs[i].skb = NULL;
1058 lp->tx_skbs[i].skb_dma = 0;
1059 }
1060 lp->tfd_base[i].fd.FDSystem = cpu_to_le32(0xffffffff);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001061 }
1062 }
1063
1064 lp->rfd_base = NULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001065 lp->rfd_limit = NULL;
1066 lp->rfd_cur = NULL;
1067 lp->fbl_ptr = NULL;
1068
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001069 for (i = 0; i < RX_BUF_NUM; i++) {
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001070 if (lp->rx_skbs[i].skb) {
1071 free_rxbuf_skb(lp->pci_dev, lp->rx_skbs[i].skb,
1072 lp->rx_skbs[i].skb_dma);
1073 lp->rx_skbs[i].skb = NULL;
1074 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001075 }
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001076 if (lp->fd_buf) {
1077 pci_free_consistent(lp->pci_dev, PAGE_SIZE * FD_PAGE_NUM,
1078 lp->fd_buf, lp->fd_buf_dma);
1079 lp->fd_buf = NULL;
1080 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001081}
1082
1083static void
1084dump_txfd(struct TxFD *fd)
1085{
1086 printk("TxFD(%p): %08x %08x %08x %08x\n", fd,
1087 le32_to_cpu(fd->fd.FDNext),
1088 le32_to_cpu(fd->fd.FDSystem),
1089 le32_to_cpu(fd->fd.FDStat),
1090 le32_to_cpu(fd->fd.FDCtl));
1091 printk("BD: ");
1092 printk(" %08x %08x",
1093 le32_to_cpu(fd->bd.BuffData),
1094 le32_to_cpu(fd->bd.BDCtl));
1095 printk("\n");
1096}
1097
1098static int
1099dump_rxfd(struct RxFD *fd)
1100{
1101 int i, bd_count = (le32_to_cpu(fd->fd.FDCtl) & FD_BDCnt_MASK) >> FD_BDCnt_SHIFT;
1102 if (bd_count > 8)
1103 bd_count = 8;
1104 printk("RxFD(%p): %08x %08x %08x %08x\n", fd,
1105 le32_to_cpu(fd->fd.FDNext),
1106 le32_to_cpu(fd->fd.FDSystem),
1107 le32_to_cpu(fd->fd.FDStat),
1108 le32_to_cpu(fd->fd.FDCtl));
1109 if (le32_to_cpu(fd->fd.FDCtl) & FD_CownsFD)
Atsushi Nemoto7f225b42008-04-11 00:25:31 +09001110 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001111 printk("BD: ");
1112 for (i = 0; i < bd_count; i++)
1113 printk(" %08x %08x",
1114 le32_to_cpu(fd->bd[i].BuffData),
1115 le32_to_cpu(fd->bd[i].BDCtl));
1116 printk("\n");
1117 return bd_count;
1118}
1119
Atsushi Nemotoa02b7b72009-11-02 04:34:47 +00001120#ifdef DEBUG
Linus Torvalds1da177e2005-04-16 15:20:36 -07001121static void
1122dump_frfd(struct FrFD *fd)
1123{
1124 int i;
1125 printk("FrFD(%p): %08x %08x %08x %08x\n", fd,
1126 le32_to_cpu(fd->fd.FDNext),
1127 le32_to_cpu(fd->fd.FDSystem),
1128 le32_to_cpu(fd->fd.FDStat),
1129 le32_to_cpu(fd->fd.FDCtl));
1130 printk("BD: ");
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001131 for (i = 0; i < RX_BUF_NUM; i++)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001132 printk(" %08x %08x",
1133 le32_to_cpu(fd->bd[i].BuffData),
1134 le32_to_cpu(fd->bd[i].BDCtl));
1135 printk("\n");
1136}
1137
1138static void
1139panic_queues(struct net_device *dev)
1140{
Atsushi Nemotoee79b7f2008-04-11 00:24:36 +09001141 struct tc35815_local *lp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001142 int i;
1143
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001144 printk("TxFD base %p, start %u, end %u\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001145 lp->tfd_base, lp->tfd_start, lp->tfd_end);
1146 printk("RxFD base %p limit %p cur %p\n",
1147 lp->rfd_base, lp->rfd_limit, lp->rfd_cur);
1148 printk("FrFD %p\n", lp->fbl_ptr);
1149 for (i = 0; i < TX_FD_NUM; i++)
1150 dump_txfd(&lp->tfd_base[i]);
1151 for (i = 0; i < RX_FD_NUM; i++) {
1152 int bd_count = dump_rxfd(&lp->rfd_base[i]);
1153 i += (bd_count + 1) / 2; /* skip BDs */
1154 }
1155 dump_frfd(lp->fbl_ptr);
1156 panic("%s: Illegal queue state.", dev->name);
1157}
Linus Torvalds1da177e2005-04-16 15:20:36 -07001158#endif
1159
Atsushi Nemoto958eb802008-04-11 00:24:24 +09001160static void print_eth(const u8 *add)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001161{
Atsushi Nemoto958eb802008-04-11 00:24:24 +09001162 printk(KERN_DEBUG "print_eth(%p)\n", add);
Johannes Berge1749612008-10-27 15:59:26 -07001163 printk(KERN_DEBUG " %pM => %pM : %02x%02x\n",
1164 add + 6, add, add[12], add[13]);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001165}
1166
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001167static int tc35815_tx_full(struct net_device *dev)
1168{
Atsushi Nemotoee79b7f2008-04-11 00:24:36 +09001169 struct tc35815_local *lp = netdev_priv(dev);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001170 return ((lp->tfd_start + 1) % TX_FD_NUM == lp->tfd_end);
1171}
1172
1173static void tc35815_restart(struct net_device *dev)
1174{
Atsushi Nemotoee79b7f2008-04-11 00:24:36 +09001175 struct tc35815_local *lp = netdev_priv(dev);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001176
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +09001177 if (lp->phy_dev) {
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001178 int timeout;
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +09001179
1180 phy_write(lp->phy_dev, MII_BMCR, BMCR_RESET);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001181 timeout = 100;
1182 while (--timeout) {
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +09001183 if (!(phy_read(lp->phy_dev, MII_BMCR) & BMCR_RESET))
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001184 break;
1185 udelay(1);
1186 }
1187 if (!timeout)
1188 printk(KERN_ERR "%s: BMCR reset failed.\n", dev->name);
1189 }
1190
Atsushi Nemotodee73992010-02-24 06:00:34 +00001191 spin_lock_bh(&lp->rx_lock);
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +09001192 spin_lock_irq(&lp->lock);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001193 tc35815_chip_reset(dev);
1194 tc35815_clear_queues(dev);
1195 tc35815_chip_init(dev);
1196 /* Reconfigure CAM again since tc35815_chip_init() initialize it. */
1197 tc35815_set_multicast_list(dev);
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +09001198 spin_unlock_irq(&lp->lock);
Atsushi Nemotodee73992010-02-24 06:00:34 +00001199 spin_unlock_bh(&lp->rx_lock);
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +09001200
1201 netif_wake_queue(dev);
1202}
1203
1204static void tc35815_restart_work(struct work_struct *work)
1205{
1206 struct tc35815_local *lp =
1207 container_of(work, struct tc35815_local, restart_work);
1208 struct net_device *dev = lp->dev;
1209
1210 tc35815_restart(dev);
1211}
1212
1213static void tc35815_schedule_restart(struct net_device *dev)
1214{
1215 struct tc35815_local *lp = netdev_priv(dev);
1216 struct tc35815_regs __iomem *tr =
1217 (struct tc35815_regs __iomem *)dev->base_addr;
Atsushi Nemotodee73992010-02-24 06:00:34 +00001218 unsigned long flags;
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +09001219
1220 /* disable interrupts */
Atsushi Nemotodee73992010-02-24 06:00:34 +00001221 spin_lock_irqsave(&lp->lock, flags);
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +09001222 tc_writel(0, &tr->Int_En);
1223 tc_writel(tc_readl(&tr->DMA_Ctl) | DMA_IntMask, &tr->DMA_Ctl);
1224 schedule_work(&lp->restart_work);
Atsushi Nemotodee73992010-02-24 06:00:34 +00001225 spin_unlock_irqrestore(&lp->lock, flags);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001226}
1227
1228static void tc35815_tx_timeout(struct net_device *dev)
1229{
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001230 struct tc35815_regs __iomem *tr =
1231 (struct tc35815_regs __iomem *)dev->base_addr;
1232
1233 printk(KERN_WARNING "%s: transmit timed out, status %#x\n",
1234 dev->name, tc_readl(&tr->Tx_Stat));
1235
1236 /* Try to restart the adaptor. */
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +09001237 tc35815_schedule_restart(dev);
Atsushi Nemotoc201abd92008-04-11 00:24:12 +09001238 dev->stats.tx_errors++;
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001239}
1240
Linus Torvalds1da177e2005-04-16 15:20:36 -07001241/*
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +09001242 * Open/initialize the controller. This is called (in the current kernel)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001243 * sometime after booting when the 'ifconfig' program is run.
1244 *
1245 * This routine should set everything up anew at each open, even
1246 * registers that "should" only need to be set once at boot, so that
1247 * there is non-reboot way to recover if something goes wrong.
1248 */
1249static int
1250tc35815_open(struct net_device *dev)
1251{
Atsushi Nemotoee79b7f2008-04-11 00:24:36 +09001252 struct tc35815_local *lp = netdev_priv(dev);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001253
Linus Torvalds1da177e2005-04-16 15:20:36 -07001254 /*
1255 * This is used if the interrupt line can turned off (shared).
1256 * See 3c503.c for an example of selecting the IRQ at config-time.
1257 */
Joe Perchesa0607fd2009-11-18 23:29:17 -08001258 if (request_irq(dev->irq, tc35815_interrupt, IRQF_SHARED,
Atsushi Nemoto7f225b42008-04-11 00:25:31 +09001259 dev->name, dev))
Linus Torvalds1da177e2005-04-16 15:20:36 -07001260 return -EAGAIN;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001261
1262 tc35815_chip_reset(dev);
1263
1264 if (tc35815_init_queues(dev) != 0) {
1265 free_irq(dev->irq, dev);
1266 return -EAGAIN;
1267 }
1268
Stephen Hemmingerbea33482007-10-03 16:41:36 -07001269 napi_enable(&lp->napi);
Stephen Hemmingerbea33482007-10-03 16:41:36 -07001270
Linus Torvalds1da177e2005-04-16 15:20:36 -07001271 /* Reset the hardware here. Don't forget to set the station address. */
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001272 spin_lock_irq(&lp->lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001273 tc35815_chip_init(dev);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001274 spin_unlock_irq(&lp->lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001275
Atsushi Nemoto59524a32008-06-25 11:41:01 +09001276 netif_carrier_off(dev);
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +09001277 /* schedule a link state check */
1278 phy_start(lp->phy_dev);
1279
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001280 /* We are now ready to accept transmit requeusts from
1281 * the queueing layer of the networking.
1282 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001283 netif_start_queue(dev);
1284
1285 return 0;
1286}
1287
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001288/* This will only be invoked if your driver is _not_ in XOFF state.
1289 * What this means is that you need not check it, and that this
1290 * invariant will hold if you make sure that the netif_*_queue()
1291 * calls are done at the proper times.
1292 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001293static int tc35815_send_packet(struct sk_buff *skb, struct net_device *dev)
1294{
Atsushi Nemotoee79b7f2008-04-11 00:24:36 +09001295 struct tc35815_local *lp = netdev_priv(dev);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001296 struct TxFD *txfd;
1297 unsigned long flags;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001298
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001299 /* If some error occurs while trying to transmit this
1300 * packet, you should return '1' from this function.
1301 * In such a case you _may not_ do anything to the
1302 * SKB, it is still owned by the network queueing
1303 * layer when an error is returned. This means you
1304 * may not modify any SKB fields, you may not free
1305 * the SKB, etc.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001306 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001307
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001308 /* This is the most common case for modern hardware.
1309 * The spinlock protects this code from the TX complete
1310 * hardware interrupt handler. Queue flow control is
1311 * thus managed under this lock as well.
1312 */
1313 spin_lock_irqsave(&lp->lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001314
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001315 /* failsafe... (handle txdone now if half of FDs are used) */
1316 if ((lp->tfd_start + TX_FD_NUM - lp->tfd_end) % TX_FD_NUM >
1317 TX_FD_NUM / 2)
1318 tc35815_txdone(dev);
1319
1320 if (netif_msg_pktdata(lp))
1321 print_eth(skb->data);
1322#ifdef DEBUG
1323 if (lp->tx_skbs[lp->tfd_start].skb) {
1324 printk("%s: tx_skbs conflict.\n", dev->name);
1325 panic_queues(dev);
1326 }
1327#else
1328 BUG_ON(lp->tx_skbs[lp->tfd_start].skb);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001329#endif
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001330 lp->tx_skbs[lp->tfd_start].skb = skb;
1331 lp->tx_skbs[lp->tfd_start].skb_dma = pci_map_single(lp->pci_dev, skb->data, skb->len, PCI_DMA_TODEVICE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001332
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001333 /*add to ring */
1334 txfd = &lp->tfd_base[lp->tfd_start];
1335 txfd->bd.BuffData = cpu_to_le32(lp->tx_skbs[lp->tfd_start].skb_dma);
1336 txfd->bd.BDCtl = cpu_to_le32(skb->len);
1337 txfd->fd.FDSystem = cpu_to_le32(lp->tfd_start);
1338 txfd->fd.FDCtl = cpu_to_le32(FD_CownsFD | (1 << FD_BDCnt_SHIFT));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001339
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001340 if (lp->tfd_start == lp->tfd_end) {
1341 struct tc35815_regs __iomem *tr =
1342 (struct tc35815_regs __iomem *)dev->base_addr;
1343 /* Start DMA Transmitter. */
1344 txfd->fd.FDNext |= cpu_to_le32(FD_Next_EOL);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001345 txfd->fd.FDCtl |= cpu_to_le32(FD_FrmOpt_IntTx);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001346 if (netif_msg_tx_queued(lp)) {
1347 printk("%s: starting TxFD.\n", dev->name);
1348 dump_txfd(txfd);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001349 }
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001350 tc_writel(fd_virt_to_bus(lp, txfd), &tr->TxFrmPtr);
1351 } else {
1352 txfd->fd.FDNext &= cpu_to_le32(~FD_Next_EOL);
1353 if (netif_msg_tx_queued(lp)) {
1354 printk("%s: queueing TxFD.\n", dev->name);
1355 dump_txfd(txfd);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001356 }
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001357 }
1358 lp->tfd_start = (lp->tfd_start + 1) % TX_FD_NUM;
1359
1360 dev->trans_start = jiffies;
1361
1362 /* If we just used up the very last entry in the
1363 * TX ring on this device, tell the queueing
1364 * layer to send no more.
1365 */
1366 if (tc35815_tx_full(dev)) {
1367 if (netif_msg_tx_queued(lp))
1368 printk(KERN_WARNING "%s: TxFD Exhausted.\n", dev->name);
1369 netif_stop_queue(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001370 }
1371
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001372 /* When the TX completion hw interrupt arrives, this
1373 * is when the transmit statistics are updated.
1374 */
1375
1376 spin_unlock_irqrestore(&lp->lock, flags);
Patrick McHardy6ed10652009-06-23 06:03:08 +00001377 return NETDEV_TX_OK;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001378}
1379
1380#define FATAL_ERROR_INT \
1381 (Int_IntPCI | Int_DmParErr | Int_IntNRAbt)
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001382static void tc35815_fatal_error_interrupt(struct net_device *dev, u32 status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001383{
1384 static int count;
1385 printk(KERN_WARNING "%s: Fatal Error Intterrupt (%#x):",
1386 dev->name, status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001387 if (status & Int_IntPCI)
1388 printk(" IntPCI");
1389 if (status & Int_DmParErr)
1390 printk(" DmParErr");
1391 if (status & Int_IntNRAbt)
1392 printk(" IntNRAbt");
1393 printk("\n");
1394 if (count++ > 100)
1395 panic("%s: Too many fatal errors.", dev->name);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001396 printk(KERN_WARNING "%s: Resetting ...\n", dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001397 /* Try to restart the adaptor. */
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +09001398 tc35815_schedule_restart(dev);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001399}
1400
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001401static int tc35815_do_interrupt(struct net_device *dev, u32 status, int limit)
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001402{
Atsushi Nemotoee79b7f2008-04-11 00:24:36 +09001403 struct tc35815_local *lp = netdev_priv(dev);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001404 int ret = -1;
1405
1406 /* Fatal errors... */
1407 if (status & FATAL_ERROR_INT) {
1408 tc35815_fatal_error_interrupt(dev, status);
1409 return 0;
1410 }
1411 /* recoverable errors */
1412 if (status & Int_IntFDAEx) {
Atsushi Nemotodb30f5e2009-08-06 04:41:46 +00001413 if (netif_msg_rx_err(lp))
1414 dev_warn(&dev->dev,
1415 "Free Descriptor Area Exhausted (%#x).\n",
1416 status);
Atsushi Nemotoc201abd92008-04-11 00:24:12 +09001417 dev->stats.rx_dropped++;
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001418 ret = 0;
1419 }
1420 if (status & Int_IntBLEx) {
Atsushi Nemotodb30f5e2009-08-06 04:41:46 +00001421 if (netif_msg_rx_err(lp))
1422 dev_warn(&dev->dev,
1423 "Buffer List Exhausted (%#x).\n",
1424 status);
Atsushi Nemotoc201abd92008-04-11 00:24:12 +09001425 dev->stats.rx_dropped++;
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001426 ret = 0;
1427 }
1428 if (status & Int_IntExBD) {
Atsushi Nemotodb30f5e2009-08-06 04:41:46 +00001429 if (netif_msg_rx_err(lp))
1430 dev_warn(&dev->dev,
1431 "Excessive Buffer Descriptiors (%#x).\n",
1432 status);
Atsushi Nemotoc201abd92008-04-11 00:24:12 +09001433 dev->stats.rx_length_errors++;
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001434 ret = 0;
1435 }
1436
1437 /* normal notification */
1438 if (status & Int_IntMacRx) {
1439 /* Got a packet(s). */
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001440 ret = tc35815_rx(dev, limit);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001441 lp->lstats.rx_ints++;
1442 }
1443 if (status & Int_IntMacTx) {
1444 /* Transmit complete. */
1445 lp->lstats.tx_ints++;
Atsushi Nemotodee73992010-02-24 06:00:34 +00001446 spin_lock_irq(&lp->lock);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001447 tc35815_txdone(dev);
Atsushi Nemotodee73992010-02-24 06:00:34 +00001448 spin_unlock_irq(&lp->lock);
Atsushi Nemoto02c5c8e2009-10-26 03:46:21 +00001449 if (ret < 0)
1450 ret = 0;
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001451 }
1452 return ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001453}
1454
1455/*
1456 * The typical workload of the driver:
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001457 * Handle the network interface interrupts.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001458 */
David Howells7d12e782006-10-05 14:55:46 +01001459static irqreturn_t tc35815_interrupt(int irq, void *dev_id)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001460{
1461 struct net_device *dev = dev_id;
Stephen Hemmingerbea33482007-10-03 16:41:36 -07001462 struct tc35815_local *lp = netdev_priv(dev);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001463 struct tc35815_regs __iomem *tr =
1464 (struct tc35815_regs __iomem *)dev->base_addr;
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001465 u32 dmactl = tc_readl(&tr->DMA_Ctl);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001466
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001467 if (!(dmactl & DMA_IntMask)) {
1468 /* disable interrupts */
1469 tc_writel(dmactl | DMA_IntMask, &tr->DMA_Ctl);
Ben Hutchings288379f2009-01-19 16:43:59 -08001470 if (napi_schedule_prep(&lp->napi))
1471 __napi_schedule(&lp->napi);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001472 else {
1473 printk(KERN_ERR "%s: interrupt taken in poll\n",
1474 dev->name);
1475 BUG();
1476 }
1477 (void)tc_readl(&tr->Int_Src); /* flush */
1478 return IRQ_HANDLED;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001479 }
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001480 return IRQ_NONE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001481}
1482
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001483#ifdef CONFIG_NET_POLL_CONTROLLER
1484static void tc35815_poll_controller(struct net_device *dev)
1485{
1486 disable_irq(dev->irq);
1487 tc35815_interrupt(dev->irq, dev);
1488 enable_irq(dev->irq);
1489}
1490#endif
1491
Linus Torvalds1da177e2005-04-16 15:20:36 -07001492/* We have a good packet(s), get it/them out of the buffers. */
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001493static int
1494tc35815_rx(struct net_device *dev, int limit)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001495{
Atsushi Nemotoee79b7f2008-04-11 00:24:36 +09001496 struct tc35815_local *lp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001497 unsigned int fdctl;
1498 int i;
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001499 int received = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001500
1501 while (!((fdctl = le32_to_cpu(lp->rfd_cur->fd.FDCtl)) & FD_CownsFD)) {
1502 int status = le32_to_cpu(lp->rfd_cur->fd.FDStat);
1503 int pkt_len = fdctl & FD_FDLength_MASK;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001504 int bd_count = (fdctl & FD_BDCnt_MASK) >> FD_BDCnt_SHIFT;
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001505#ifdef DEBUG
1506 struct RxFD *next_rfd;
1507#endif
1508#if (RX_CTL_CMD & Rx_StripCRC) == 0
Atsushi Nemoto82a99282008-12-11 20:58:04 -08001509 pkt_len -= ETH_FCS_LEN;
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001510#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07001511
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001512 if (netif_msg_rx_status(lp))
Linus Torvalds1da177e2005-04-16 15:20:36 -07001513 dump_rxfd(lp->rfd_cur);
1514 if (status & Rx_Good) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001515 struct sk_buff *skb;
1516 unsigned char *data;
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001517 int cur_bd;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001518
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001519 if (--limit < 0)
1520 break;
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001521 BUG_ON(bd_count > 1);
1522 cur_bd = (le32_to_cpu(lp->rfd_cur->bd[0].BDCtl)
1523 & BD_RxBDID_MASK) >> BD_RxBDID_SHIFT;
1524#ifdef DEBUG
1525 if (cur_bd >= RX_BUF_NUM) {
1526 printk("%s: invalid BDID.\n", dev->name);
1527 panic_queues(dev);
1528 }
1529 BUG_ON(lp->rx_skbs[cur_bd].skb_dma !=
1530 (le32_to_cpu(lp->rfd_cur->bd[0].BuffData) & ~3));
1531 if (!lp->rx_skbs[cur_bd].skb) {
1532 printk("%s: NULL skb.\n", dev->name);
1533 panic_queues(dev);
1534 }
1535#else
1536 BUG_ON(cur_bd >= RX_BUF_NUM);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001537#endif
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001538 skb = lp->rx_skbs[cur_bd].skb;
1539 prefetch(skb->data);
1540 lp->rx_skbs[cur_bd].skb = NULL;
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001541 pci_unmap_single(lp->pci_dev,
1542 lp->rx_skbs[cur_bd].skb_dma,
1543 RX_BUF_SIZE, PCI_DMA_FROMDEVICE);
Atsushi Nemoto82a99282008-12-11 20:58:04 -08001544 if (!HAVE_DMA_RXALIGN(lp) && NET_IP_ALIGN)
1545 memmove(skb->data, skb->data - NET_IP_ALIGN,
1546 pkt_len);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001547 data = skb_put(skb, pkt_len);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001548 if (netif_msg_pktdata(lp))
Linus Torvalds1da177e2005-04-16 15:20:36 -07001549 print_eth(data);
1550 skb->protocol = eth_type_trans(skb, dev);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001551 netif_receive_skb(skb);
1552 received++;
Atsushi Nemotoc201abd92008-04-11 00:24:12 +09001553 dev->stats.rx_packets++;
1554 dev->stats.rx_bytes += pkt_len;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001555 } else {
Atsushi Nemotoc201abd92008-04-11 00:24:12 +09001556 dev->stats.rx_errors++;
Atsushi Nemotodb30f5e2009-08-06 04:41:46 +00001557 if (netif_msg_rx_err(lp))
1558 dev_info(&dev->dev, "Rx error (status %x)\n",
1559 status & Rx_Stat_Mask);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001560 /* WORKAROUND: LongErr and CRCErr means Overflow. */
1561 if ((status & Rx_LongErr) && (status & Rx_CRCErr)) {
1562 status &= ~(Rx_LongErr|Rx_CRCErr);
1563 status |= Rx_Over;
1564 }
Atsushi Nemotoc201abd92008-04-11 00:24:12 +09001565 if (status & Rx_LongErr)
1566 dev->stats.rx_length_errors++;
1567 if (status & Rx_Over)
1568 dev->stats.rx_fifo_errors++;
1569 if (status & Rx_CRCErr)
1570 dev->stats.rx_crc_errors++;
1571 if (status & Rx_Align)
1572 dev->stats.rx_frame_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001573 }
1574
1575 if (bd_count > 0) {
1576 /* put Free Buffer back to controller */
1577 int bdctl = le32_to_cpu(lp->rfd_cur->bd[bd_count - 1].BDCtl);
1578 unsigned char id =
1579 (bdctl & BD_RxBDID_MASK) >> BD_RxBDID_SHIFT;
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001580#ifdef DEBUG
1581 if (id >= RX_BUF_NUM) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001582 printk("%s: invalid BDID.\n", dev->name);
1583 panic_queues(dev);
1584 }
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001585#else
1586 BUG_ON(id >= RX_BUF_NUM);
1587#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07001588 /* free old buffers */
Atsushi Nemotoccc57aa2008-06-26 17:14:15 +09001589 lp->fbl_count--;
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001590 while (lp->fbl_count < RX_BUF_NUM)
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001591 {
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001592 unsigned char curid =
1593 (id + 1 + lp->fbl_count) % RX_BUF_NUM;
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001594 struct BDesc *bd = &lp->fbl_ptr->bd[curid];
1595#ifdef DEBUG
1596 bdctl = le32_to_cpu(bd->BDCtl);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001597 if (bdctl & BD_CownsBD) {
1598 printk("%s: Freeing invalid BD.\n",
1599 dev->name);
1600 panic_queues(dev);
1601 }
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001602#endif
Robert P. J. Day3a4fa0a2007-10-19 23:10:43 +02001603 /* pass BD to controller */
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001604 if (!lp->rx_skbs[curid].skb) {
1605 lp->rx_skbs[curid].skb =
1606 alloc_rxbuf_skb(dev,
1607 lp->pci_dev,
1608 &lp->rx_skbs[curid].skb_dma);
1609 if (!lp->rx_skbs[curid].skb)
1610 break; /* try on next reception */
1611 bd->BuffData = cpu_to_le32(lp->rx_skbs[curid].skb_dma);
1612 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001613 /* Note: BDLength was modified by chip. */
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001614 bd->BDCtl = cpu_to_le32(BD_CownsBD |
1615 (curid << BD_RxBDID_SHIFT) |
1616 RX_BUF_SIZE);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001617 lp->fbl_count++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001618 }
1619 }
1620
1621 /* put RxFD back to controller */
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001622#ifdef DEBUG
1623 next_rfd = fd_bus_to_virt(lp,
1624 le32_to_cpu(lp->rfd_cur->fd.FDNext));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001625 if (next_rfd < lp->rfd_base || next_rfd > lp->rfd_limit) {
1626 printk("%s: RxFD FDNext invalid.\n", dev->name);
1627 panic_queues(dev);
1628 }
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001629#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07001630 for (i = 0; i < (bd_count + 1) / 2 + 1; i++) {
Robert P. J. Day3a4fa0a2007-10-19 23:10:43 +02001631 /* pass FD to controller */
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001632#ifdef DEBUG
1633 lp->rfd_cur->fd.FDNext = cpu_to_le32(0xdeaddead);
1634#else
1635 lp->rfd_cur->fd.FDNext = cpu_to_le32(FD_Next_EOL);
1636#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07001637 lp->rfd_cur->fd.FDCtl = cpu_to_le32(FD_CownsFD);
1638 lp->rfd_cur++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001639 }
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001640 if (lp->rfd_cur > lp->rfd_limit)
1641 lp->rfd_cur = lp->rfd_base;
1642#ifdef DEBUG
1643 if (lp->rfd_cur != next_rfd)
1644 printk("rfd_cur = %p, next_rfd %p\n",
1645 lp->rfd_cur, next_rfd);
1646#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07001647 }
1648
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001649 return received;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001650}
1651
Stephen Hemmingerbea33482007-10-03 16:41:36 -07001652static int tc35815_poll(struct napi_struct *napi, int budget)
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001653{
Stephen Hemmingerbea33482007-10-03 16:41:36 -07001654 struct tc35815_local *lp = container_of(napi, struct tc35815_local, napi);
1655 struct net_device *dev = lp->dev;
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001656 struct tc35815_regs __iomem *tr =
1657 (struct tc35815_regs __iomem *)dev->base_addr;
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001658 int received = 0, handled;
1659 u32 status;
1660
Atsushi Nemotodee73992010-02-24 06:00:34 +00001661 spin_lock(&lp->rx_lock);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001662 status = tc_readl(&tr->Int_Src);
1663 do {
Atsushi Nemotodb30f5e2009-08-06 04:41:46 +00001664 /* BLEx, FDAEx will be cleared later */
1665 tc_writel(status & ~(Int_BLEx | Int_FDAEx),
1666 &tr->Int_Src); /* write to clear */
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001667
Atsushi Nemotoa2c465d2009-04-02 01:17:36 -07001668 handled = tc35815_do_interrupt(dev, status, budget - received);
Atsushi Nemotodb30f5e2009-08-06 04:41:46 +00001669 if (status & (Int_BLEx | Int_FDAEx))
1670 tc_writel(status & (Int_BLEx | Int_FDAEx),
1671 &tr->Int_Src);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001672 if (handled >= 0) {
1673 received += handled;
Stephen Hemmingerbea33482007-10-03 16:41:36 -07001674 if (received >= budget)
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001675 break;
1676 }
1677 status = tc_readl(&tr->Int_Src);
1678 } while (status);
Atsushi Nemotodee73992010-02-24 06:00:34 +00001679 spin_unlock(&lp->rx_lock);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001680
Stephen Hemmingerbea33482007-10-03 16:41:36 -07001681 if (received < budget) {
Ben Hutchings288379f2009-01-19 16:43:59 -08001682 napi_complete(napi);
Stephen Hemmingerbea33482007-10-03 16:41:36 -07001683 /* enable interrupts */
1684 tc_writel(tc_readl(&tr->DMA_Ctl) & ~DMA_IntMask, &tr->DMA_Ctl);
1685 }
1686 return received;
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001687}
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001688
Linus Torvalds1da177e2005-04-16 15:20:36 -07001689#define TX_STA_ERR (Tx_ExColl|Tx_Under|Tx_Defer|Tx_NCarr|Tx_LateColl|Tx_TxPar|Tx_SQErr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001690
1691static void
1692tc35815_check_tx_stat(struct net_device *dev, int status)
1693{
Atsushi Nemotoee79b7f2008-04-11 00:24:36 +09001694 struct tc35815_local *lp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001695 const char *msg = NULL;
1696
1697 /* count collisions */
1698 if (status & Tx_ExColl)
Atsushi Nemotoc201abd92008-04-11 00:24:12 +09001699 dev->stats.collisions += 16;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001700 if (status & Tx_TxColl_MASK)
Atsushi Nemotoc201abd92008-04-11 00:24:12 +09001701 dev->stats.collisions += status & Tx_TxColl_MASK;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001702
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001703 /* TX4939 does not have NCarr */
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +09001704 if (lp->chiptype == TC35815_TX4939)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001705 status &= ~Tx_NCarr;
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001706 /* WORKAROUND: ignore LostCrS in full duplex operation */
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +09001707 if (!lp->link || lp->duplex == DUPLEX_FULL)
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001708 status &= ~Tx_NCarr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001709
1710 if (!(status & TX_STA_ERR)) {
1711 /* no error. */
Atsushi Nemotoc201abd92008-04-11 00:24:12 +09001712 dev->stats.tx_packets++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001713 return;
1714 }
1715
Atsushi Nemotoc201abd92008-04-11 00:24:12 +09001716 dev->stats.tx_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001717 if (status & Tx_ExColl) {
Atsushi Nemotoc201abd92008-04-11 00:24:12 +09001718 dev->stats.tx_aborted_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001719 msg = "Excessive Collision.";
1720 }
1721 if (status & Tx_Under) {
Atsushi Nemotoc201abd92008-04-11 00:24:12 +09001722 dev->stats.tx_fifo_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001723 msg = "Tx FIFO Underrun.";
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001724 if (lp->lstats.tx_underrun < TX_THRESHOLD_KEEP_LIMIT) {
1725 lp->lstats.tx_underrun++;
1726 if (lp->lstats.tx_underrun >= TX_THRESHOLD_KEEP_LIMIT) {
1727 struct tc35815_regs __iomem *tr =
1728 (struct tc35815_regs __iomem *)dev->base_addr;
1729 tc_writel(TX_THRESHOLD_MAX, &tr->TxThrsh);
1730 msg = "Tx FIFO Underrun.Change Tx threshold to max.";
1731 }
1732 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001733 }
1734 if (status & Tx_Defer) {
Atsushi Nemotoc201abd92008-04-11 00:24:12 +09001735 dev->stats.tx_fifo_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001736 msg = "Excessive Deferral.";
1737 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001738 if (status & Tx_NCarr) {
Atsushi Nemotoc201abd92008-04-11 00:24:12 +09001739 dev->stats.tx_carrier_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001740 msg = "Lost Carrier Sense.";
1741 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001742 if (status & Tx_LateColl) {
Atsushi Nemotoc201abd92008-04-11 00:24:12 +09001743 dev->stats.tx_aborted_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001744 msg = "Late Collision.";
1745 }
1746 if (status & Tx_TxPar) {
Atsushi Nemotoc201abd92008-04-11 00:24:12 +09001747 dev->stats.tx_fifo_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001748 msg = "Transmit Parity Error.";
1749 }
1750 if (status & Tx_SQErr) {
Atsushi Nemotoc201abd92008-04-11 00:24:12 +09001751 dev->stats.tx_heartbeat_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001752 msg = "Signal Quality Error.";
1753 }
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001754 if (msg && netif_msg_tx_err(lp))
Linus Torvalds1da177e2005-04-16 15:20:36 -07001755 printk(KERN_WARNING "%s: %s (%#x)\n", dev->name, msg, status);
1756}
1757
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001758/* This handles TX complete events posted by the device
1759 * via interrupts.
1760 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001761static void
1762tc35815_txdone(struct net_device *dev)
1763{
Atsushi Nemotoee79b7f2008-04-11 00:24:36 +09001764 struct tc35815_local *lp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001765 struct TxFD *txfd;
1766 unsigned int fdctl;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001767
1768 txfd = &lp->tfd_base[lp->tfd_end];
1769 while (lp->tfd_start != lp->tfd_end &&
1770 !((fdctl = le32_to_cpu(txfd->fd.FDCtl)) & FD_CownsFD)) {
1771 int status = le32_to_cpu(txfd->fd.FDStat);
1772 struct sk_buff *skb;
1773 unsigned long fdnext = le32_to_cpu(txfd->fd.FDNext);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001774 u32 fdsystem = le32_to_cpu(txfd->fd.FDSystem);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001775
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001776 if (netif_msg_tx_done(lp)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001777 printk("%s: complete TxFD.\n", dev->name);
1778 dump_txfd(txfd);
1779 }
1780 tc35815_check_tx_stat(dev, status);
1781
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001782 skb = fdsystem != 0xffffffff ?
1783 lp->tx_skbs[fdsystem].skb : NULL;
1784#ifdef DEBUG
1785 if (lp->tx_skbs[lp->tfd_end].skb != skb) {
1786 printk("%s: tx_skbs mismatch.\n", dev->name);
1787 panic_queues(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001788 }
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001789#else
1790 BUG_ON(lp->tx_skbs[lp->tfd_end].skb != skb);
1791#endif
1792 if (skb) {
Atsushi Nemotoc201abd92008-04-11 00:24:12 +09001793 dev->stats.tx_bytes += skb->len;
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001794 pci_unmap_single(lp->pci_dev, lp->tx_skbs[lp->tfd_end].skb_dma, skb->len, PCI_DMA_TODEVICE);
1795 lp->tx_skbs[lp->tfd_end].skb = NULL;
1796 lp->tx_skbs[lp->tfd_end].skb_dma = 0;
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001797 dev_kfree_skb_any(skb);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001798 }
1799 txfd->fd.FDSystem = cpu_to_le32(0xffffffff);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001800
Linus Torvalds1da177e2005-04-16 15:20:36 -07001801 lp->tfd_end = (lp->tfd_end + 1) % TX_FD_NUM;
1802 txfd = &lp->tfd_base[lp->tfd_end];
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001803#ifdef DEBUG
1804 if ((fdnext & ~FD_Next_EOL) != fd_virt_to_bus(lp, txfd)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001805 printk("%s: TxFD FDNext invalid.\n", dev->name);
1806 panic_queues(dev);
1807 }
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001808#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07001809 if (fdnext & FD_Next_EOL) {
1810 /* DMA Transmitter has been stopping... */
1811 if (lp->tfd_end != lp->tfd_start) {
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001812 struct tc35815_regs __iomem *tr =
1813 (struct tc35815_regs __iomem *)dev->base_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001814 int head = (lp->tfd_start + TX_FD_NUM - 1) % TX_FD_NUM;
Atsushi Nemoto7f225b42008-04-11 00:25:31 +09001815 struct TxFD *txhead = &lp->tfd_base[head];
Linus Torvalds1da177e2005-04-16 15:20:36 -07001816 int qlen = (lp->tfd_start + TX_FD_NUM
1817 - lp->tfd_end) % TX_FD_NUM;
1818
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001819#ifdef DEBUG
Linus Torvalds1da177e2005-04-16 15:20:36 -07001820 if (!(le32_to_cpu(txfd->fd.FDCtl) & FD_CownsFD)) {
1821 printk("%s: TxFD FDCtl invalid.\n", dev->name);
1822 panic_queues(dev);
1823 }
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001824#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07001825 /* log max queue length */
1826 if (lp->lstats.max_tx_qlen < qlen)
1827 lp->lstats.max_tx_qlen = qlen;
1828
1829
1830 /* start DMA Transmitter again */
1831 txhead->fd.FDNext |= cpu_to_le32(FD_Next_EOL);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001832 txhead->fd.FDCtl |= cpu_to_le32(FD_FrmOpt_IntTx);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001833 if (netif_msg_tx_queued(lp)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001834 printk("%s: start TxFD on queue.\n",
1835 dev->name);
1836 dump_txfd(txfd);
1837 }
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001838 tc_writel(fd_virt_to_bus(lp, txfd), &tr->TxFrmPtr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001839 }
1840 break;
1841 }
1842 }
1843
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001844 /* If we had stopped the queue due to a "tx full"
1845 * condition, and space has now been made available,
1846 * wake up the queue.
1847 */
Atsushi Nemoto7f225b42008-04-11 00:25:31 +09001848 if (netif_queue_stopped(dev) && !tc35815_tx_full(dev))
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001849 netif_wake_queue(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001850}
1851
1852/* The inverse routine to tc35815_open(). */
1853static int
1854tc35815_close(struct net_device *dev)
1855{
Atsushi Nemotoee79b7f2008-04-11 00:24:36 +09001856 struct tc35815_local *lp = netdev_priv(dev);
Stephen Hemmingerbea33482007-10-03 16:41:36 -07001857
Linus Torvalds1da177e2005-04-16 15:20:36 -07001858 netif_stop_queue(dev);
Stephen Hemmingerbea33482007-10-03 16:41:36 -07001859 napi_disable(&lp->napi);
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +09001860 if (lp->phy_dev)
1861 phy_stop(lp->phy_dev);
1862 cancel_work_sync(&lp->restart_work);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001863
1864 /* Flush the Tx and disable Rx here. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001865 tc35815_chip_reset(dev);
1866 free_irq(dev->irq, dev);
1867
1868 tc35815_free_queues(dev);
1869
1870 return 0;
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001871
Linus Torvalds1da177e2005-04-16 15:20:36 -07001872}
1873
1874/*
1875 * Get the current statistics.
1876 * This may be called with the card open or closed.
1877 */
1878static struct net_device_stats *tc35815_get_stats(struct net_device *dev)
1879{
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001880 struct tc35815_regs __iomem *tr =
1881 (struct tc35815_regs __iomem *)dev->base_addr;
Atsushi Nemotoc201abd92008-04-11 00:24:12 +09001882 if (netif_running(dev))
Linus Torvalds1da177e2005-04-16 15:20:36 -07001883 /* Update the statistics from the device registers. */
Atsushi Nemoto7bb82e82009-08-06 04:41:48 +00001884 dev->stats.rx_missed_errors += tc_readl(&tr->Miss_Cnt);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001885
Atsushi Nemotoc201abd92008-04-11 00:24:12 +09001886 return &dev->stats;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001887}
1888
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001889static void tc35815_set_cam_entry(struct net_device *dev, int index, unsigned char *addr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001890{
Atsushi Nemotoee79b7f2008-04-11 00:24:36 +09001891 struct tc35815_local *lp = netdev_priv(dev);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001892 struct tc35815_regs __iomem *tr =
1893 (struct tc35815_regs __iomem *)dev->base_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001894 int cam_index = index * 6;
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001895 u32 cam_data;
1896 u32 saved_addr;
Atsushi Nemoto958eb802008-04-11 00:24:24 +09001897
Linus Torvalds1da177e2005-04-16 15:20:36 -07001898 saved_addr = tc_readl(&tr->CAM_Adr);
1899
Atsushi Nemoto958eb802008-04-11 00:24:24 +09001900 if (netif_msg_hw(lp))
Johannes Berge1749612008-10-27 15:59:26 -07001901 printk(KERN_DEBUG "%s: CAM %d: %pM\n",
1902 dev->name, index, addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001903 if (index & 1) {
1904 /* read modify write */
1905 tc_writel(cam_index - 2, &tr->CAM_Adr);
1906 cam_data = tc_readl(&tr->CAM_Data) & 0xffff0000;
1907 cam_data |= addr[0] << 8 | addr[1];
1908 tc_writel(cam_data, &tr->CAM_Data);
1909 /* write whole word */
1910 tc_writel(cam_index + 2, &tr->CAM_Adr);
1911 cam_data = (addr[2] << 24) | (addr[3] << 16) | (addr[4] << 8) | addr[5];
1912 tc_writel(cam_data, &tr->CAM_Data);
1913 } else {
1914 /* write whole word */
1915 tc_writel(cam_index, &tr->CAM_Adr);
1916 cam_data = (addr[0] << 24) | (addr[1] << 16) | (addr[2] << 8) | addr[3];
1917 tc_writel(cam_data, &tr->CAM_Data);
1918 /* read modify write */
1919 tc_writel(cam_index + 4, &tr->CAM_Adr);
1920 cam_data = tc_readl(&tr->CAM_Data) & 0x0000ffff;
1921 cam_data |= addr[4] << 24 | (addr[5] << 16);
1922 tc_writel(cam_data, &tr->CAM_Data);
1923 }
1924
Linus Torvalds1da177e2005-04-16 15:20:36 -07001925 tc_writel(saved_addr, &tr->CAM_Adr);
1926}
1927
1928
1929/*
1930 * Set or clear the multicast filter for this adaptor.
1931 * num_addrs == -1 Promiscuous mode, receive all packets
1932 * num_addrs == 0 Normal mode, clear multicast list
1933 * num_addrs > 0 Multicast mode, receive normal and MC packets,
1934 * and do best-effort filtering.
1935 */
1936static void
1937tc35815_set_multicast_list(struct net_device *dev)
1938{
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001939 struct tc35815_regs __iomem *tr =
1940 (struct tc35815_regs __iomem *)dev->base_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001941
Atsushi Nemoto7f225b42008-04-11 00:25:31 +09001942 if (dev->flags & IFF_PROMISC) {
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001943 /* With some (all?) 100MHalf HUB, controller will hang
1944 * if we enabled promiscuous mode before linkup... */
Atsushi Nemotoee79b7f2008-04-11 00:24:36 +09001945 struct tc35815_local *lp = netdev_priv(dev);
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +09001946
1947 if (!lp->link)
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001948 return;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001949 /* Enable promiscuous mode */
1950 tc_writel(CAM_CompEn | CAM_BroadAcc | CAM_GroupAcc | CAM_StationAcc, &tr->CAM_Ctl);
Atsushi Nemoto7f225b42008-04-11 00:25:31 +09001951 } else if ((dev->flags & IFF_ALLMULTI) ||
Jiri Pirko4cd24ea2010-02-08 04:30:35 +00001952 netdev_mc_count(dev) > CAM_ENTRY_MAX - 3) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001953 /* CAM 0, 1, 20 are reserved. */
1954 /* Disable promiscuous mode, use normal mode. */
1955 tc_writel(CAM_CompEn | CAM_BroadAcc | CAM_GroupAcc, &tr->CAM_Ctl);
Jiri Pirko4cd24ea2010-02-08 04:30:35 +00001956 } else if (!netdev_mc_empty(dev)) {
Jiri Pirko567ec872010-02-23 23:17:07 +00001957 struct dev_mc_list *cur_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001958 int i;
1959 int ena_bits = CAM_Ena_Bit(CAM_ENTRY_SOURCE);
1960
1961 tc_writel(0, &tr->CAM_Ctl);
1962 /* Walk the address list, and load the filter */
Jiri Pirko567ec872010-02-23 23:17:07 +00001963 i = 0;
1964 netdev_for_each_mc_addr(cur_addr, dev) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001965 /* entry 0,1 is reserved. */
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001966 tc35815_set_cam_entry(dev, i + 2, cur_addr->dmi_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001967 ena_bits |= CAM_Ena_Bit(i + 2);
Jiri Pirko567ec872010-02-23 23:17:07 +00001968 i++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001969 }
1970 tc_writel(ena_bits, &tr->CAM_Ena);
1971 tc_writel(CAM_CompEn | CAM_BroadAcc, &tr->CAM_Ctl);
Atsushi Nemoto7f225b42008-04-11 00:25:31 +09001972 } else {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001973 tc_writel(CAM_Ena_Bit(CAM_ENTRY_SOURCE), &tr->CAM_Ena);
1974 tc_writel(CAM_CompEn | CAM_BroadAcc, &tr->CAM_Ctl);
1975 }
1976}
1977
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001978static void tc35815_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001979{
Atsushi Nemotoee79b7f2008-04-11 00:24:36 +09001980 struct tc35815_local *lp = netdev_priv(dev);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001981 strcpy(info->driver, MODNAME);
1982 strcpy(info->version, DRV_VERSION);
1983 strcpy(info->bus_info, pci_name(lp->pci_dev));
1984}
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001985
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001986static int tc35815_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
1987{
Atsushi Nemotoee79b7f2008-04-11 00:24:36 +09001988 struct tc35815_local *lp = netdev_priv(dev);
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +09001989
1990 if (!lp->phy_dev)
1991 return -ENODEV;
1992 return phy_ethtool_gset(lp->phy_dev, cmd);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001993}
Linus Torvalds1da177e2005-04-16 15:20:36 -07001994
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001995static int tc35815_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
1996{
Atsushi Nemotoee79b7f2008-04-11 00:24:36 +09001997 struct tc35815_local *lp = netdev_priv(dev);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09001998
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +09001999 if (!lp->phy_dev)
2000 return -ENODEV;
2001 return phy_ethtool_sset(lp->phy_dev, cmd);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09002002}
2003
2004static u32 tc35815_get_msglevel(struct net_device *dev)
2005{
Atsushi Nemotoee79b7f2008-04-11 00:24:36 +09002006 struct tc35815_local *lp = netdev_priv(dev);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09002007 return lp->msg_enable;
2008}
2009
2010static void tc35815_set_msglevel(struct net_device *dev, u32 datum)
2011{
Atsushi Nemotoee79b7f2008-04-11 00:24:36 +09002012 struct tc35815_local *lp = netdev_priv(dev);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09002013 lp->msg_enable = datum;
2014}
2015
Jeff Garzikb9f2c042007-10-03 18:07:32 -07002016static int tc35815_get_sset_count(struct net_device *dev, int sset)
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09002017{
Atsushi Nemotoee79b7f2008-04-11 00:24:36 +09002018 struct tc35815_local *lp = netdev_priv(dev);
Jeff Garzikb9f2c042007-10-03 18:07:32 -07002019
2020 switch (sset) {
2021 case ETH_SS_STATS:
2022 return sizeof(lp->lstats) / sizeof(int);
2023 default:
2024 return -EOPNOTSUPP;
2025 }
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09002026}
2027
2028static void tc35815_get_ethtool_stats(struct net_device *dev, struct ethtool_stats *stats, u64 *data)
2029{
Atsushi Nemotoee79b7f2008-04-11 00:24:36 +09002030 struct tc35815_local *lp = netdev_priv(dev);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09002031 data[0] = lp->lstats.max_tx_qlen;
2032 data[1] = lp->lstats.tx_ints;
2033 data[2] = lp->lstats.rx_ints;
2034 data[3] = lp->lstats.tx_underrun;
2035}
2036
2037static struct {
2038 const char str[ETH_GSTRING_LEN];
2039} ethtool_stats_keys[] = {
2040 { "max_tx_qlen" },
2041 { "tx_ints" },
2042 { "rx_ints" },
2043 { "tx_underrun" },
2044};
2045
2046static void tc35815_get_strings(struct net_device *dev, u32 stringset, u8 *data)
2047{
2048 memcpy(data, ethtool_stats_keys, sizeof(ethtool_stats_keys));
2049}
2050
2051static const struct ethtool_ops tc35815_ethtool_ops = {
2052 .get_drvinfo = tc35815_get_drvinfo,
2053 .get_settings = tc35815_get_settings,
2054 .set_settings = tc35815_set_settings,
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +09002055 .get_link = ethtool_op_get_link,
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09002056 .get_msglevel = tc35815_get_msglevel,
2057 .set_msglevel = tc35815_set_msglevel,
2058 .get_strings = tc35815_get_strings,
Jeff Garzikb9f2c042007-10-03 18:07:32 -07002059 .get_sset_count = tc35815_get_sset_count,
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09002060 .get_ethtool_stats = tc35815_get_ethtool_stats,
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09002061};
2062
2063static int tc35815_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
2064{
Atsushi Nemotoee79b7f2008-04-11 00:24:36 +09002065 struct tc35815_local *lp = netdev_priv(dev);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09002066
2067 if (!netif_running(dev))
2068 return -EINVAL;
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +09002069 if (!lp->phy_dev)
2070 return -ENODEV;
2071 return phy_mii_ioctl(lp->phy_dev, if_mii(rq), cmd);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002072}
2073
2074static void tc35815_chip_reset(struct net_device *dev)
2075{
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09002076 struct tc35815_regs __iomem *tr =
2077 (struct tc35815_regs __iomem *)dev->base_addr;
2078 int i;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002079 /* reset the controller */
2080 tc_writel(MAC_Reset, &tr->MAC_Ctl);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09002081 udelay(4); /* 3200ns */
2082 i = 0;
2083 while (tc_readl(&tr->MAC_Ctl) & MAC_Reset) {
2084 if (i++ > 100) {
2085 printk(KERN_ERR "%s: MAC reset failed.\n", dev->name);
2086 break;
2087 }
2088 mdelay(1);
2089 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002090 tc_writel(0, &tr->MAC_Ctl);
2091
2092 /* initialize registers to default value */
2093 tc_writel(0, &tr->DMA_Ctl);
2094 tc_writel(0, &tr->TxThrsh);
2095 tc_writel(0, &tr->TxPollCtr);
2096 tc_writel(0, &tr->RxFragSize);
2097 tc_writel(0, &tr->Int_En);
2098 tc_writel(0, &tr->FDA_Bas);
2099 tc_writel(0, &tr->FDA_Lim);
2100 tc_writel(0xffffffff, &tr->Int_Src); /* Write 1 to clear */
2101 tc_writel(0, &tr->CAM_Ctl);
2102 tc_writel(0, &tr->Tx_Ctl);
2103 tc_writel(0, &tr->Rx_Ctl);
2104 tc_writel(0, &tr->CAM_Ena);
2105 (void)tc_readl(&tr->Miss_Cnt); /* Read to clear */
2106
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09002107 /* initialize internal SRAM */
2108 tc_writel(DMA_TestMode, &tr->DMA_Ctl);
2109 for (i = 0; i < 0x1000; i += 4) {
2110 tc_writel(i, &tr->CAM_Adr);
2111 tc_writel(0, &tr->CAM_Data);
2112 }
2113 tc_writel(0, &tr->DMA_Ctl);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002114}
2115
2116static void tc35815_chip_init(struct net_device *dev)
2117{
Atsushi Nemotoee79b7f2008-04-11 00:24:36 +09002118 struct tc35815_local *lp = netdev_priv(dev);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09002119 struct tc35815_regs __iomem *tr =
2120 (struct tc35815_regs __iomem *)dev->base_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002121 unsigned long txctl = TX_CTL_CMD;
2122
Linus Torvalds1da177e2005-04-16 15:20:36 -07002123 /* load station address to CAM */
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09002124 tc35815_set_cam_entry(dev, CAM_ENTRY_SOURCE, dev->dev_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002125
2126 /* Enable CAM (broadcast and unicast) */
2127 tc_writel(CAM_Ena_Bit(CAM_ENTRY_SOURCE), &tr->CAM_Ena);
2128 tc_writel(CAM_CompEn | CAM_BroadAcc, &tr->CAM_Ctl);
2129
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09002130 /* Use DMA_RxAlign_2 to make IP header 4-byte aligned. */
2131 if (HAVE_DMA_RXALIGN(lp))
2132 tc_writel(DMA_BURST_SIZE | DMA_RxAlign_2, &tr->DMA_Ctl);
2133 else
2134 tc_writel(DMA_BURST_SIZE, &tr->DMA_Ctl);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002135 tc_writel(0, &tr->TxPollCtr); /* Batch mode */
2136 tc_writel(TX_THRESHOLD, &tr->TxThrsh);
2137 tc_writel(INT_EN_CMD, &tr->Int_En);
2138
2139 /* set queues */
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09002140 tc_writel(fd_virt_to_bus(lp, lp->rfd_base), &tr->FDA_Bas);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002141 tc_writel((unsigned long)lp->rfd_limit - (unsigned long)lp->rfd_base,
2142 &tr->FDA_Lim);
2143 /*
2144 * Activation method:
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09002145 * First, enable the MAC Transmitter and the DMA Receive circuits.
Linus Torvalds1da177e2005-04-16 15:20:36 -07002146 * Then enable the DMA Transmitter and the MAC Receive circuits.
2147 */
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09002148 tc_writel(fd_virt_to_bus(lp, lp->fbl_ptr), &tr->BLFrmPtr); /* start DMA receiver */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002149 tc_writel(RX_CTL_CMD, &tr->Rx_Ctl); /* start MAC receiver */
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09002150
Linus Torvalds1da177e2005-04-16 15:20:36 -07002151 /* start MAC transmitter */
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09002152 /* TX4939 does not have EnLCarr */
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +09002153 if (lp->chiptype == TC35815_TX4939)
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09002154 txctl &= ~Tx_EnLCarr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002155 /* WORKAROUND: ignore LostCrS in full duplex operation */
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +09002156 if (!lp->phy_dev || !lp->link || lp->duplex == DUPLEX_FULL)
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09002157 txctl &= ~Tx_EnLCarr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002158 tc_writel(txctl, &tr->Tx_Ctl);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002159}
2160
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09002161#ifdef CONFIG_PM
2162static int tc35815_suspend(struct pci_dev *pdev, pm_message_t state)
2163{
2164 struct net_device *dev = pci_get_drvdata(pdev);
Atsushi Nemotoee79b7f2008-04-11 00:24:36 +09002165 struct tc35815_local *lp = netdev_priv(dev);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09002166 unsigned long flags;
2167
2168 pci_save_state(pdev);
2169 if (!netif_running(dev))
2170 return 0;
2171 netif_device_detach(dev);
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +09002172 if (lp->phy_dev)
2173 phy_stop(lp->phy_dev);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09002174 spin_lock_irqsave(&lp->lock, flags);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09002175 tc35815_chip_reset(dev);
2176 spin_unlock_irqrestore(&lp->lock, flags);
2177 pci_set_power_state(pdev, PCI_D3hot);
2178 return 0;
2179}
2180
2181static int tc35815_resume(struct pci_dev *pdev)
2182{
2183 struct net_device *dev = pci_get_drvdata(pdev);
Atsushi Nemotoee79b7f2008-04-11 00:24:36 +09002184 struct tc35815_local *lp = netdev_priv(dev);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09002185
2186 pci_restore_state(pdev);
2187 if (!netif_running(dev))
2188 return 0;
2189 pci_set_power_state(pdev, PCI_D0);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09002190 tc35815_restart(dev);
Atsushi Nemoto59524a32008-06-25 11:41:01 +09002191 netif_carrier_off(dev);
Atsushi Nemotoc6686fe2008-04-12 00:47:46 +09002192 if (lp->phy_dev)
2193 phy_start(lp->phy_dev);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09002194 netif_device_attach(dev);
2195 return 0;
2196}
2197#endif /* CONFIG_PM */
2198
2199static struct pci_driver tc35815_pci_driver = {
2200 .name = MODNAME,
2201 .id_table = tc35815_pci_tbl,
2202 .probe = tc35815_init_one,
2203 .remove = __devexit_p(tc35815_remove_one),
2204#ifdef CONFIG_PM
2205 .suspend = tc35815_suspend,
2206 .resume = tc35815_resume,
2207#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07002208};
2209
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09002210module_param_named(speed, options.speed, int, 0);
2211MODULE_PARM_DESC(speed, "0:auto, 10:10Mbps, 100:100Mbps");
2212module_param_named(duplex, options.duplex, int, 0);
2213MODULE_PARM_DESC(duplex, "0:auto, 1:half, 2:full");
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09002214
Linus Torvalds1da177e2005-04-16 15:20:36 -07002215static int __init tc35815_init_module(void)
2216{
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09002217 return pci_register_driver(&tc35815_pci_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002218}
2219
2220static void __exit tc35815_cleanup_module(void)
2221{
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09002222 pci_unregister_driver(&tc35815_pci_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002223}
Jeff Garzik420e8522007-02-24 17:02:16 -05002224
Linus Torvalds1da177e2005-04-16 15:20:36 -07002225module_init(tc35815_init_module);
2226module_exit(tc35815_cleanup_module);
Atsushi Nemotoeea221ce2007-03-03 23:54:59 +09002227
2228MODULE_DESCRIPTION("TOSHIBA TC35815 PCI 10M/100M Ethernet driver");
2229MODULE_LICENSE("GPL");