Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* pcnet32.c: An AMD PCnet32 ethernet driver for linux. */ |
| 2 | /* |
| 3 | * Copyright 1996-1999 Thomas Bogendoerfer |
| 4 | * |
| 5 | * Derived from the lance driver written 1993,1994,1995 by Donald Becker. |
| 6 | * |
| 7 | * Copyright 1993 United States Government as represented by the |
| 8 | * Director, National Security Agency. |
| 9 | * |
| 10 | * This software may be used and distributed according to the terms |
| 11 | * of the GNU General Public License, incorporated herein by reference. |
| 12 | * |
| 13 | * This driver is for PCnet32 and PCnetPCI based ethercards |
| 14 | */ |
| 15 | /************************************************************************** |
| 16 | * 23 Oct, 2000. |
| 17 | * Fixed a few bugs, related to running the controller in 32bit mode. |
| 18 | * |
| 19 | * Carsten Langgaard, carstenl@mips.com |
| 20 | * Copyright (C) 2000 MIPS Technologies, Inc. All rights reserved. |
| 21 | * |
| 22 | *************************************************************************/ |
| 23 | |
| 24 | #define DRV_NAME "pcnet32" |
Don Fry | 7de745e | 2006-09-13 10:16:53 -0700 | [diff] [blame] | 25 | #ifdef CONFIG_PCNET32_NAPI |
Don Fry | 917270c | 2007-08-26 21:22:32 -0700 | [diff] [blame] | 26 | #define DRV_VERSION "1.34-NAPI" |
Don Fry | 7de745e | 2006-09-13 10:16:53 -0700 | [diff] [blame] | 27 | #else |
Don Fry | 917270c | 2007-08-26 21:22:32 -0700 | [diff] [blame] | 28 | #define DRV_VERSION "1.34" |
Don Fry | 7de745e | 2006-09-13 10:16:53 -0700 | [diff] [blame] | 29 | #endif |
Don Fry | 917270c | 2007-08-26 21:22:32 -0700 | [diff] [blame] | 30 | #define DRV_RELDATE "14.Aug.2007" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 31 | #define PFX DRV_NAME ": " |
| 32 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 33 | static const char *const version = |
| 34 | DRV_NAME ".c:v" DRV_VERSION " " DRV_RELDATE " tsbogend@alpha.franken.de\n"; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 35 | |
| 36 | #include <linux/module.h> |
| 37 | #include <linux/kernel.h> |
| 38 | #include <linux/string.h> |
| 39 | #include <linux/errno.h> |
| 40 | #include <linux/ioport.h> |
| 41 | #include <linux/slab.h> |
| 42 | #include <linux/interrupt.h> |
| 43 | #include <linux/pci.h> |
| 44 | #include <linux/delay.h> |
| 45 | #include <linux/init.h> |
| 46 | #include <linux/ethtool.h> |
| 47 | #include <linux/mii.h> |
| 48 | #include <linux/crc32.h> |
| 49 | #include <linux/netdevice.h> |
| 50 | #include <linux/etherdevice.h> |
| 51 | #include <linux/skbuff.h> |
| 52 | #include <linux/spinlock.h> |
| 53 | #include <linux/moduleparam.h> |
| 54 | #include <linux/bitops.h> |
| 55 | |
| 56 | #include <asm/dma.h> |
| 57 | #include <asm/io.h> |
| 58 | #include <asm/uaccess.h> |
| 59 | #include <asm/irq.h> |
| 60 | |
| 61 | /* |
| 62 | * PCI device identifiers for "new style" Linux PCI Device Drivers |
| 63 | */ |
| 64 | static struct pci_device_id pcnet32_pci_tbl[] = { |
Don Fry | f2622a2 | 2006-06-29 13:52:58 -0700 | [diff] [blame] | 65 | { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_LANCE_HOME), }, |
| 66 | { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_LANCE), }, |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 67 | |
| 68 | /* |
| 69 | * Adapters that were sold with IBM's RS/6000 or pSeries hardware have |
| 70 | * the incorrect vendor id. |
| 71 | */ |
Don Fry | f2622a2 | 2006-06-29 13:52:58 -0700 | [diff] [blame] | 72 | { PCI_DEVICE(PCI_VENDOR_ID_TRIDENT, PCI_DEVICE_ID_AMD_LANCE), |
| 73 | .class = (PCI_CLASS_NETWORK_ETHERNET << 8), .class_mask = 0xffff00, }, |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 74 | |
| 75 | { } /* terminate list */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 76 | }; |
| 77 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 78 | MODULE_DEVICE_TABLE(pci, pcnet32_pci_tbl); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 79 | |
| 80 | static int cards_found; |
| 81 | |
| 82 | /* |
| 83 | * VLB I/O addresses |
| 84 | */ |
| 85 | static unsigned int pcnet32_portlist[] __initdata = |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 86 | { 0x300, 0x320, 0x340, 0x360, 0 }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 87 | |
| 88 | static int pcnet32_debug = 0; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 89 | static int tx_start = 1; /* Mapping -- 0:20, 1:64, 2:128, 3:~220 (depends on chip vers) */ |
| 90 | static int pcnet32vlb; /* check for VLB cards ? */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 91 | |
| 92 | static struct net_device *pcnet32_dev; |
| 93 | |
| 94 | static int max_interrupt_work = 2; |
| 95 | static int rx_copybreak = 200; |
| 96 | |
| 97 | #define PCNET32_PORT_AUI 0x00 |
| 98 | #define PCNET32_PORT_10BT 0x01 |
| 99 | #define PCNET32_PORT_GPSI 0x02 |
| 100 | #define PCNET32_PORT_MII 0x03 |
| 101 | |
| 102 | #define PCNET32_PORT_PORTSEL 0x03 |
| 103 | #define PCNET32_PORT_ASEL 0x04 |
| 104 | #define PCNET32_PORT_100 0x40 |
| 105 | #define PCNET32_PORT_FD 0x80 |
| 106 | |
| 107 | #define PCNET32_DMA_MASK 0xffffffff |
| 108 | |
| 109 | #define PCNET32_WATCHDOG_TIMEOUT (jiffies + (2 * HZ)) |
| 110 | #define PCNET32_BLINK_TIMEOUT (jiffies + (HZ/4)) |
| 111 | |
| 112 | /* |
| 113 | * table to translate option values from tulip |
| 114 | * to internal options |
| 115 | */ |
Arjan van de Ven | f71e130 | 2006-03-03 21:33:57 -0500 | [diff] [blame] | 116 | static const unsigned char options_mapping[] = { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 117 | PCNET32_PORT_ASEL, /* 0 Auto-select */ |
| 118 | PCNET32_PORT_AUI, /* 1 BNC/AUI */ |
| 119 | PCNET32_PORT_AUI, /* 2 AUI/BNC */ |
| 120 | PCNET32_PORT_ASEL, /* 3 not supported */ |
| 121 | PCNET32_PORT_10BT | PCNET32_PORT_FD, /* 4 10baseT-FD */ |
| 122 | PCNET32_PORT_ASEL, /* 5 not supported */ |
| 123 | PCNET32_PORT_ASEL, /* 6 not supported */ |
| 124 | PCNET32_PORT_ASEL, /* 7 not supported */ |
| 125 | PCNET32_PORT_ASEL, /* 8 not supported */ |
| 126 | PCNET32_PORT_MII, /* 9 MII 10baseT */ |
| 127 | PCNET32_PORT_MII | PCNET32_PORT_FD, /* 10 MII 10baseT-FD */ |
| 128 | PCNET32_PORT_MII, /* 11 MII (autosel) */ |
| 129 | PCNET32_PORT_10BT, /* 12 10BaseT */ |
| 130 | PCNET32_PORT_MII | PCNET32_PORT_100, /* 13 MII 100BaseTx */ |
| 131 | /* 14 MII 100BaseTx-FD */ |
| 132 | PCNET32_PORT_MII | PCNET32_PORT_100 | PCNET32_PORT_FD, |
| 133 | PCNET32_PORT_ASEL /* 15 not supported */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 134 | }; |
| 135 | |
| 136 | static const char pcnet32_gstrings_test[][ETH_GSTRING_LEN] = { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 137 | "Loopback test (offline)" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 138 | }; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 139 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 140 | #define PCNET32_TEST_LEN (sizeof(pcnet32_gstrings_test) / ETH_GSTRING_LEN) |
| 141 | |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 142 | #define PCNET32_NUM_REGS 136 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 143 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 144 | #define MAX_UNITS 8 /* More are supported, limit only on options */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 145 | static int options[MAX_UNITS]; |
| 146 | static int full_duplex[MAX_UNITS]; |
| 147 | static int homepna[MAX_UNITS]; |
| 148 | |
| 149 | /* |
| 150 | * Theory of Operation |
| 151 | * |
| 152 | * This driver uses the same software structure as the normal lance |
| 153 | * driver. So look for a verbose description in lance.c. The differences |
| 154 | * to the normal lance driver is the use of the 32bit mode of PCnet32 |
| 155 | * and PCnetPCI chips. Because these chips are 32bit chips, there is no |
| 156 | * 16MB limitation and we don't need bounce buffers. |
| 157 | */ |
| 158 | |
| 159 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 160 | * Set the number of Tx and Rx buffers, using Log_2(# buffers). |
| 161 | * Reasonable default values are 4 Tx buffers, and 16 Rx buffers. |
| 162 | * That translates to 2 (4 == 2^^2) and 4 (16 == 2^^4). |
| 163 | */ |
| 164 | #ifndef PCNET32_LOG_TX_BUFFERS |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 165 | #define PCNET32_LOG_TX_BUFFERS 4 |
| 166 | #define PCNET32_LOG_RX_BUFFERS 5 |
| 167 | #define PCNET32_LOG_MAX_TX_BUFFERS 9 /* 2^9 == 512 */ |
| 168 | #define PCNET32_LOG_MAX_RX_BUFFERS 9 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 169 | #endif |
| 170 | |
| 171 | #define TX_RING_SIZE (1 << (PCNET32_LOG_TX_BUFFERS)) |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 172 | #define TX_MAX_RING_SIZE (1 << (PCNET32_LOG_MAX_TX_BUFFERS)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 173 | |
| 174 | #define RX_RING_SIZE (1 << (PCNET32_LOG_RX_BUFFERS)) |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 175 | #define RX_MAX_RING_SIZE (1 << (PCNET32_LOG_MAX_RX_BUFFERS)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 176 | |
| 177 | #define PKT_BUF_SZ 1544 |
| 178 | |
| 179 | /* Offsets from base I/O address. */ |
| 180 | #define PCNET32_WIO_RDP 0x10 |
| 181 | #define PCNET32_WIO_RAP 0x12 |
| 182 | #define PCNET32_WIO_RESET 0x14 |
| 183 | #define PCNET32_WIO_BDP 0x16 |
| 184 | |
| 185 | #define PCNET32_DWIO_RDP 0x10 |
| 186 | #define PCNET32_DWIO_RAP 0x14 |
| 187 | #define PCNET32_DWIO_RESET 0x18 |
| 188 | #define PCNET32_DWIO_BDP 0x1C |
| 189 | |
| 190 | #define PCNET32_TOTAL_SIZE 0x20 |
| 191 | |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 192 | #define CSR0 0 |
| 193 | #define CSR0_INIT 0x1 |
| 194 | #define CSR0_START 0x2 |
| 195 | #define CSR0_STOP 0x4 |
| 196 | #define CSR0_TXPOLL 0x8 |
| 197 | #define CSR0_INTEN 0x40 |
| 198 | #define CSR0_IDON 0x0100 |
| 199 | #define CSR0_NORMAL (CSR0_START | CSR0_INTEN) |
| 200 | #define PCNET32_INIT_LOW 1 |
| 201 | #define PCNET32_INIT_HIGH 2 |
| 202 | #define CSR3 3 |
| 203 | #define CSR4 4 |
| 204 | #define CSR5 5 |
| 205 | #define CSR5_SUSPEND 0x0001 |
| 206 | #define CSR15 15 |
| 207 | #define PCNET32_MC_FILTER 8 |
| 208 | |
Don Fry | 8d91626 | 2006-08-22 10:22:37 -0700 | [diff] [blame] | 209 | #define PCNET32_79C970A 0x2621 |
| 210 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 211 | /* The PCNET32 Rx and Tx ring descriptors. */ |
| 212 | struct pcnet32_rx_head { |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 213 | __le32 base; |
| 214 | __le16 buf_length; /* two`s complement of length */ |
| 215 | __le16 status; |
| 216 | __le32 msg_length; |
| 217 | __le32 reserved; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 218 | }; |
| 219 | |
| 220 | struct pcnet32_tx_head { |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 221 | __le32 base; |
| 222 | __le16 length; /* two`s complement of length */ |
| 223 | __le16 status; |
| 224 | __le32 misc; |
| 225 | __le32 reserved; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 226 | }; |
| 227 | |
| 228 | /* The PCNET32 32-Bit initialization block, described in databook. */ |
| 229 | struct pcnet32_init_block { |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 230 | __le16 mode; |
| 231 | __le16 tlen_rlen; |
Jeff Garzik | 0b5bf22 | 2006-03-21 16:22:47 -0500 | [diff] [blame] | 232 | u8 phys_addr[6]; |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 233 | __le16 reserved; |
| 234 | __le32 filter[2]; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 235 | /* Receive and transmit ring base, along with extra bits. */ |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 236 | __le32 rx_ring; |
| 237 | __le32 tx_ring; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 238 | }; |
| 239 | |
| 240 | /* PCnet32 access functions */ |
| 241 | struct pcnet32_access { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 242 | u16 (*read_csr) (unsigned long, int); |
| 243 | void (*write_csr) (unsigned long, int, u16); |
| 244 | u16 (*read_bcr) (unsigned long, int); |
| 245 | void (*write_bcr) (unsigned long, int, u16); |
| 246 | u16 (*read_rap) (unsigned long); |
| 247 | void (*write_rap) (unsigned long, u16); |
| 248 | void (*reset) (unsigned long); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 249 | }; |
| 250 | |
| 251 | /* |
Hubert WS Lin | 7620992 | 2005-09-14 11:39:27 -0700 | [diff] [blame] | 252 | * The first field of pcnet32_private is read by the ethernet device |
| 253 | * so the structure should be allocated using pci_alloc_consistent(). |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 254 | */ |
| 255 | struct pcnet32_private { |
Don Fry | 6ecb766 | 2007-03-06 10:45:23 -0800 | [diff] [blame] | 256 | struct pcnet32_init_block *init_block; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 257 | /* The Tx and Rx ring entries must be aligned on 16-byte boundaries in 32bit mode. */ |
Jeff Garzik | 0b5bf22 | 2006-03-21 16:22:47 -0500 | [diff] [blame] | 258 | struct pcnet32_rx_head *rx_ring; |
| 259 | struct pcnet32_tx_head *tx_ring; |
Don Fry | 6ecb766 | 2007-03-06 10:45:23 -0800 | [diff] [blame] | 260 | dma_addr_t init_dma_addr;/* DMA address of beginning of the init block, |
| 261 | returned by pci_alloc_consistent */ |
Jeff Garzik | 0b5bf22 | 2006-03-21 16:22:47 -0500 | [diff] [blame] | 262 | struct pci_dev *pci_dev; |
| 263 | const char *name; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 264 | /* The saved address of a sent-in-place packet/buffer, for skfree(). */ |
Jeff Garzik | 0b5bf22 | 2006-03-21 16:22:47 -0500 | [diff] [blame] | 265 | struct sk_buff **tx_skbuff; |
| 266 | struct sk_buff **rx_skbuff; |
| 267 | dma_addr_t *tx_dma_addr; |
| 268 | dma_addr_t *rx_dma_addr; |
| 269 | struct pcnet32_access a; |
| 270 | spinlock_t lock; /* Guard lock */ |
| 271 | unsigned int cur_rx, cur_tx; /* The next free ring entry */ |
| 272 | unsigned int rx_ring_size; /* current rx ring size */ |
| 273 | unsigned int tx_ring_size; /* current tx ring size */ |
| 274 | unsigned int rx_mod_mask; /* rx ring modular mask */ |
| 275 | unsigned int tx_mod_mask; /* tx ring modular mask */ |
| 276 | unsigned short rx_len_bits; |
| 277 | unsigned short tx_len_bits; |
| 278 | dma_addr_t rx_ring_dma_addr; |
| 279 | dma_addr_t tx_ring_dma_addr; |
| 280 | unsigned int dirty_rx, /* ring entries to be freed. */ |
| 281 | dirty_tx; |
| 282 | |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 283 | struct net_device *dev; |
| 284 | struct napi_struct napi; |
Jeff Garzik | 0b5bf22 | 2006-03-21 16:22:47 -0500 | [diff] [blame] | 285 | struct net_device_stats stats; |
| 286 | char tx_full; |
| 287 | char phycount; /* number of phys found */ |
| 288 | int options; |
| 289 | unsigned int shared_irq:1, /* shared irq possible */ |
| 290 | dxsuflo:1, /* disable transmit stop on uflo */ |
| 291 | mii:1; /* mii port available */ |
| 292 | struct net_device *next; |
| 293 | struct mii_if_info mii_if; |
| 294 | struct timer_list watchdog_timer; |
| 295 | struct timer_list blink_timer; |
| 296 | u32 msg_enable; /* debug message level */ |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 297 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 298 | /* each bit indicates an available PHY */ |
Jeff Garzik | 0b5bf22 | 2006-03-21 16:22:47 -0500 | [diff] [blame] | 299 | u32 phymask; |
Don Fry | 8d91626 | 2006-08-22 10:22:37 -0700 | [diff] [blame] | 300 | unsigned short chip_version; /* which variant this is */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 301 | }; |
| 302 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 303 | static int pcnet32_probe_pci(struct pci_dev *, const struct pci_device_id *); |
| 304 | static int pcnet32_probe1(unsigned long, int, struct pci_dev *); |
| 305 | static int pcnet32_open(struct net_device *); |
| 306 | static int pcnet32_init_ring(struct net_device *); |
| 307 | static int pcnet32_start_xmit(struct sk_buff *, struct net_device *); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 308 | static void pcnet32_tx_timeout(struct net_device *dev); |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 309 | static irqreturn_t pcnet32_interrupt(int, void *); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 310 | static int pcnet32_close(struct net_device *); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 311 | static struct net_device_stats *pcnet32_get_stats(struct net_device *); |
| 312 | static void pcnet32_load_multicast(struct net_device *dev); |
| 313 | static void pcnet32_set_multicast_list(struct net_device *); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 314 | static int pcnet32_ioctl(struct net_device *, struct ifreq *, int); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 315 | static void pcnet32_watchdog(struct net_device *); |
| 316 | static int mdio_read(struct net_device *dev, int phy_id, int reg_num); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 317 | static void mdio_write(struct net_device *dev, int phy_id, int reg_num, |
| 318 | int val); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 319 | static void pcnet32_restart(struct net_device *dev, unsigned int csr0_bits); |
| 320 | static void pcnet32_ethtool_test(struct net_device *dev, |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 321 | struct ethtool_test *eth_test, u64 * data); |
| 322 | static int pcnet32_loopback_test(struct net_device *dev, uint64_t * data1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 323 | static int pcnet32_phys_id(struct net_device *dev, u32 data); |
| 324 | static void pcnet32_led_blink_callback(struct net_device *dev); |
| 325 | static int pcnet32_get_regs_len(struct net_device *dev); |
| 326 | static void pcnet32_get_regs(struct net_device *dev, struct ethtool_regs *regs, |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 327 | void *ptr); |
Don Fry | 1bcd315 | 2005-04-29 14:51:17 -0700 | [diff] [blame] | 328 | static void pcnet32_purge_tx_ring(struct net_device *dev); |
Don Fry | a88c844 | 2005-11-01 12:04:33 -0800 | [diff] [blame] | 329 | static int pcnet32_alloc_ring(struct net_device *dev, char *name); |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 330 | static void pcnet32_free_ring(struct net_device *dev); |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 331 | static void pcnet32_check_media(struct net_device *dev, int verbose); |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 332 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 333 | static u16 pcnet32_wio_read_csr(unsigned long addr, int index) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 334 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 335 | outw(index, addr + PCNET32_WIO_RAP); |
| 336 | return inw(addr + PCNET32_WIO_RDP); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 337 | } |
| 338 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 339 | static void pcnet32_wio_write_csr(unsigned long addr, int index, u16 val) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 340 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 341 | outw(index, addr + PCNET32_WIO_RAP); |
| 342 | outw(val, addr + PCNET32_WIO_RDP); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 343 | } |
| 344 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 345 | static u16 pcnet32_wio_read_bcr(unsigned long addr, int index) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 346 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 347 | outw(index, addr + PCNET32_WIO_RAP); |
| 348 | return inw(addr + PCNET32_WIO_BDP); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 349 | } |
| 350 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 351 | static void pcnet32_wio_write_bcr(unsigned long addr, int index, u16 val) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 352 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 353 | outw(index, addr + PCNET32_WIO_RAP); |
| 354 | outw(val, addr + PCNET32_WIO_BDP); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 355 | } |
| 356 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 357 | static u16 pcnet32_wio_read_rap(unsigned long addr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 358 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 359 | return inw(addr + PCNET32_WIO_RAP); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 360 | } |
| 361 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 362 | static void pcnet32_wio_write_rap(unsigned long addr, u16 val) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 363 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 364 | outw(val, addr + PCNET32_WIO_RAP); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 365 | } |
| 366 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 367 | static void pcnet32_wio_reset(unsigned long addr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 368 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 369 | inw(addr + PCNET32_WIO_RESET); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 370 | } |
| 371 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 372 | static int pcnet32_wio_check(unsigned long addr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 373 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 374 | outw(88, addr + PCNET32_WIO_RAP); |
| 375 | return (inw(addr + PCNET32_WIO_RAP) == 88); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 376 | } |
| 377 | |
| 378 | static struct pcnet32_access pcnet32_wio = { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 379 | .read_csr = pcnet32_wio_read_csr, |
| 380 | .write_csr = pcnet32_wio_write_csr, |
| 381 | .read_bcr = pcnet32_wio_read_bcr, |
| 382 | .write_bcr = pcnet32_wio_write_bcr, |
| 383 | .read_rap = pcnet32_wio_read_rap, |
| 384 | .write_rap = pcnet32_wio_write_rap, |
| 385 | .reset = pcnet32_wio_reset |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 386 | }; |
| 387 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 388 | static u16 pcnet32_dwio_read_csr(unsigned long addr, int index) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 389 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 390 | outl(index, addr + PCNET32_DWIO_RAP); |
| 391 | return (inl(addr + PCNET32_DWIO_RDP) & 0xffff); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 392 | } |
| 393 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 394 | static void pcnet32_dwio_write_csr(unsigned long addr, int index, u16 val) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 395 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 396 | outl(index, addr + PCNET32_DWIO_RAP); |
| 397 | outl(val, addr + PCNET32_DWIO_RDP); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 398 | } |
| 399 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 400 | static u16 pcnet32_dwio_read_bcr(unsigned long addr, int index) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 401 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 402 | outl(index, addr + PCNET32_DWIO_RAP); |
| 403 | return (inl(addr + PCNET32_DWIO_BDP) & 0xffff); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 404 | } |
| 405 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 406 | static void pcnet32_dwio_write_bcr(unsigned long addr, int index, u16 val) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 407 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 408 | outl(index, addr + PCNET32_DWIO_RAP); |
| 409 | outl(val, addr + PCNET32_DWIO_BDP); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 410 | } |
| 411 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 412 | static u16 pcnet32_dwio_read_rap(unsigned long addr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 413 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 414 | return (inl(addr + PCNET32_DWIO_RAP) & 0xffff); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 415 | } |
| 416 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 417 | static void pcnet32_dwio_write_rap(unsigned long addr, u16 val) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 418 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 419 | outl(val, addr + PCNET32_DWIO_RAP); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 420 | } |
| 421 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 422 | static void pcnet32_dwio_reset(unsigned long addr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 423 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 424 | inl(addr + PCNET32_DWIO_RESET); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 425 | } |
| 426 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 427 | static int pcnet32_dwio_check(unsigned long addr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 428 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 429 | outl(88, addr + PCNET32_DWIO_RAP); |
| 430 | return ((inl(addr + PCNET32_DWIO_RAP) & 0xffff) == 88); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 431 | } |
| 432 | |
| 433 | static struct pcnet32_access pcnet32_dwio = { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 434 | .read_csr = pcnet32_dwio_read_csr, |
| 435 | .write_csr = pcnet32_dwio_write_csr, |
| 436 | .read_bcr = pcnet32_dwio_read_bcr, |
| 437 | .write_bcr = pcnet32_dwio_write_bcr, |
| 438 | .read_rap = pcnet32_dwio_read_rap, |
| 439 | .write_rap = pcnet32_dwio_write_rap, |
| 440 | .reset = pcnet32_dwio_reset |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 441 | }; |
| 442 | |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 443 | static void pcnet32_netif_stop(struct net_device *dev) |
| 444 | { |
Don Fry | 6ad6c75 | 2007-10-17 16:10:10 -0700 | [diff] [blame^] | 445 | #ifdef CONFIG_PCNET32_NAPI |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 446 | struct pcnet32_private *lp = netdev_priv(dev); |
Don Fry | 6ad6c75 | 2007-10-17 16:10:10 -0700 | [diff] [blame^] | 447 | #endif |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 448 | dev->trans_start = jiffies; |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 449 | #ifdef CONFIG_PCNET32_NAPI |
| 450 | napi_disable(&lp->napi); |
| 451 | #endif |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 452 | netif_tx_disable(dev); |
| 453 | } |
| 454 | |
| 455 | static void pcnet32_netif_start(struct net_device *dev) |
| 456 | { |
Don Fry | 6ad6c75 | 2007-10-17 16:10:10 -0700 | [diff] [blame^] | 457 | #ifdef CONFIG_PCNET32_NAPI |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 458 | struct pcnet32_private *lp = netdev_priv(dev); |
Don Fry | 6ad6c75 | 2007-10-17 16:10:10 -0700 | [diff] [blame^] | 459 | #endif |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 460 | netif_wake_queue(dev); |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 461 | #ifdef CONFIG_PCNET32_NAPI |
| 462 | napi_enable(&lp->napi); |
| 463 | #endif |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 464 | } |
| 465 | |
| 466 | /* |
| 467 | * Allocate space for the new sized tx ring. |
| 468 | * Free old resources |
| 469 | * Save new resources. |
| 470 | * Any failure keeps old resources. |
| 471 | * Must be called with lp->lock held. |
| 472 | */ |
| 473 | static void pcnet32_realloc_tx_ring(struct net_device *dev, |
| 474 | struct pcnet32_private *lp, |
| 475 | unsigned int size) |
| 476 | { |
| 477 | dma_addr_t new_ring_dma_addr; |
| 478 | dma_addr_t *new_dma_addr_list; |
| 479 | struct pcnet32_tx_head *new_tx_ring; |
| 480 | struct sk_buff **new_skb_list; |
| 481 | |
| 482 | pcnet32_purge_tx_ring(dev); |
| 483 | |
| 484 | new_tx_ring = pci_alloc_consistent(lp->pci_dev, |
| 485 | sizeof(struct pcnet32_tx_head) * |
| 486 | (1 << size), |
| 487 | &new_ring_dma_addr); |
| 488 | if (new_tx_ring == NULL) { |
| 489 | if (netif_msg_drv(lp)) |
| 490 | printk("\n" KERN_ERR |
| 491 | "%s: Consistent memory allocation failed.\n", |
| 492 | dev->name); |
| 493 | return; |
| 494 | } |
| 495 | memset(new_tx_ring, 0, sizeof(struct pcnet32_tx_head) * (1 << size)); |
| 496 | |
| 497 | new_dma_addr_list = kcalloc((1 << size), sizeof(dma_addr_t), |
| 498 | GFP_ATOMIC); |
| 499 | if (!new_dma_addr_list) { |
| 500 | if (netif_msg_drv(lp)) |
| 501 | printk("\n" KERN_ERR |
| 502 | "%s: Memory allocation failed.\n", dev->name); |
| 503 | goto free_new_tx_ring; |
| 504 | } |
| 505 | |
| 506 | new_skb_list = kcalloc((1 << size), sizeof(struct sk_buff *), |
| 507 | GFP_ATOMIC); |
| 508 | if (!new_skb_list) { |
| 509 | if (netif_msg_drv(lp)) |
| 510 | printk("\n" KERN_ERR |
| 511 | "%s: Memory allocation failed.\n", dev->name); |
| 512 | goto free_new_lists; |
| 513 | } |
| 514 | |
| 515 | kfree(lp->tx_skbuff); |
| 516 | kfree(lp->tx_dma_addr); |
| 517 | pci_free_consistent(lp->pci_dev, |
| 518 | sizeof(struct pcnet32_tx_head) * |
| 519 | lp->tx_ring_size, lp->tx_ring, |
| 520 | lp->tx_ring_dma_addr); |
| 521 | |
| 522 | lp->tx_ring_size = (1 << size); |
| 523 | lp->tx_mod_mask = lp->tx_ring_size - 1; |
| 524 | lp->tx_len_bits = (size << 12); |
| 525 | lp->tx_ring = new_tx_ring; |
| 526 | lp->tx_ring_dma_addr = new_ring_dma_addr; |
| 527 | lp->tx_dma_addr = new_dma_addr_list; |
| 528 | lp->tx_skbuff = new_skb_list; |
| 529 | return; |
| 530 | |
| 531 | free_new_lists: |
| 532 | kfree(new_dma_addr_list); |
| 533 | free_new_tx_ring: |
| 534 | pci_free_consistent(lp->pci_dev, |
| 535 | sizeof(struct pcnet32_tx_head) * |
| 536 | (1 << size), |
| 537 | new_tx_ring, |
| 538 | new_ring_dma_addr); |
| 539 | return; |
| 540 | } |
| 541 | |
| 542 | /* |
| 543 | * Allocate space for the new sized rx ring. |
| 544 | * Re-use old receive buffers. |
| 545 | * alloc extra buffers |
| 546 | * free unneeded buffers |
| 547 | * free unneeded buffers |
| 548 | * Save new resources. |
| 549 | * Any failure keeps old resources. |
| 550 | * Must be called with lp->lock held. |
| 551 | */ |
| 552 | static void pcnet32_realloc_rx_ring(struct net_device *dev, |
| 553 | struct pcnet32_private *lp, |
| 554 | unsigned int size) |
| 555 | { |
| 556 | dma_addr_t new_ring_dma_addr; |
| 557 | dma_addr_t *new_dma_addr_list; |
| 558 | struct pcnet32_rx_head *new_rx_ring; |
| 559 | struct sk_buff **new_skb_list; |
| 560 | int new, overlap; |
| 561 | |
| 562 | new_rx_ring = pci_alloc_consistent(lp->pci_dev, |
| 563 | sizeof(struct pcnet32_rx_head) * |
| 564 | (1 << size), |
| 565 | &new_ring_dma_addr); |
| 566 | if (new_rx_ring == NULL) { |
| 567 | if (netif_msg_drv(lp)) |
| 568 | printk("\n" KERN_ERR |
| 569 | "%s: Consistent memory allocation failed.\n", |
| 570 | dev->name); |
| 571 | return; |
| 572 | } |
| 573 | memset(new_rx_ring, 0, sizeof(struct pcnet32_rx_head) * (1 << size)); |
| 574 | |
| 575 | new_dma_addr_list = kcalloc((1 << size), sizeof(dma_addr_t), |
| 576 | GFP_ATOMIC); |
| 577 | if (!new_dma_addr_list) { |
| 578 | if (netif_msg_drv(lp)) |
| 579 | printk("\n" KERN_ERR |
| 580 | "%s: Memory allocation failed.\n", dev->name); |
| 581 | goto free_new_rx_ring; |
| 582 | } |
| 583 | |
| 584 | new_skb_list = kcalloc((1 << size), sizeof(struct sk_buff *), |
| 585 | GFP_ATOMIC); |
| 586 | if (!new_skb_list) { |
| 587 | if (netif_msg_drv(lp)) |
| 588 | printk("\n" KERN_ERR |
| 589 | "%s: Memory allocation failed.\n", dev->name); |
| 590 | goto free_new_lists; |
| 591 | } |
| 592 | |
| 593 | /* first copy the current receive buffers */ |
| 594 | overlap = min(size, lp->rx_ring_size); |
| 595 | for (new = 0; new < overlap; new++) { |
| 596 | new_rx_ring[new] = lp->rx_ring[new]; |
| 597 | new_dma_addr_list[new] = lp->rx_dma_addr[new]; |
| 598 | new_skb_list[new] = lp->rx_skbuff[new]; |
| 599 | } |
| 600 | /* now allocate any new buffers needed */ |
| 601 | for (; new < size; new++ ) { |
| 602 | struct sk_buff *rx_skbuff; |
| 603 | new_skb_list[new] = dev_alloc_skb(PKT_BUF_SZ); |
| 604 | if (!(rx_skbuff = new_skb_list[new])) { |
| 605 | /* keep the original lists and buffers */ |
| 606 | if (netif_msg_drv(lp)) |
| 607 | printk(KERN_ERR |
| 608 | "%s: pcnet32_realloc_rx_ring dev_alloc_skb failed.\n", |
| 609 | dev->name); |
| 610 | goto free_all_new; |
| 611 | } |
| 612 | skb_reserve(rx_skbuff, 2); |
| 613 | |
| 614 | new_dma_addr_list[new] = |
| 615 | pci_map_single(lp->pci_dev, rx_skbuff->data, |
| 616 | PKT_BUF_SZ - 2, PCI_DMA_FROMDEVICE); |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 617 | new_rx_ring[new].base = cpu_to_le32(new_dma_addr_list[new]); |
| 618 | new_rx_ring[new].buf_length = cpu_to_le16(2 - PKT_BUF_SZ); |
| 619 | new_rx_ring[new].status = cpu_to_le16(0x8000); |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 620 | } |
| 621 | /* and free any unneeded buffers */ |
| 622 | for (; new < lp->rx_ring_size; new++) { |
| 623 | if (lp->rx_skbuff[new]) { |
| 624 | pci_unmap_single(lp->pci_dev, lp->rx_dma_addr[new], |
| 625 | PKT_BUF_SZ - 2, PCI_DMA_FROMDEVICE); |
| 626 | dev_kfree_skb(lp->rx_skbuff[new]); |
| 627 | } |
| 628 | } |
| 629 | |
| 630 | kfree(lp->rx_skbuff); |
| 631 | kfree(lp->rx_dma_addr); |
| 632 | pci_free_consistent(lp->pci_dev, |
| 633 | sizeof(struct pcnet32_rx_head) * |
| 634 | lp->rx_ring_size, lp->rx_ring, |
| 635 | lp->rx_ring_dma_addr); |
| 636 | |
| 637 | lp->rx_ring_size = (1 << size); |
| 638 | lp->rx_mod_mask = lp->rx_ring_size - 1; |
| 639 | lp->rx_len_bits = (size << 4); |
| 640 | lp->rx_ring = new_rx_ring; |
| 641 | lp->rx_ring_dma_addr = new_ring_dma_addr; |
| 642 | lp->rx_dma_addr = new_dma_addr_list; |
| 643 | lp->rx_skbuff = new_skb_list; |
| 644 | return; |
| 645 | |
| 646 | free_all_new: |
| 647 | for (; --new >= lp->rx_ring_size; ) { |
| 648 | if (new_skb_list[new]) { |
| 649 | pci_unmap_single(lp->pci_dev, new_dma_addr_list[new], |
| 650 | PKT_BUF_SZ - 2, PCI_DMA_FROMDEVICE); |
| 651 | dev_kfree_skb(new_skb_list[new]); |
| 652 | } |
| 653 | } |
| 654 | kfree(new_skb_list); |
| 655 | free_new_lists: |
| 656 | kfree(new_dma_addr_list); |
| 657 | free_new_rx_ring: |
| 658 | pci_free_consistent(lp->pci_dev, |
| 659 | sizeof(struct pcnet32_rx_head) * |
| 660 | (1 << size), |
| 661 | new_rx_ring, |
| 662 | new_ring_dma_addr); |
| 663 | return; |
| 664 | } |
| 665 | |
Don Fry | ac5bfe4 | 2006-06-29 13:55:27 -0700 | [diff] [blame] | 666 | static void pcnet32_purge_rx_ring(struct net_device *dev) |
| 667 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 668 | struct pcnet32_private *lp = netdev_priv(dev); |
Don Fry | ac5bfe4 | 2006-06-29 13:55:27 -0700 | [diff] [blame] | 669 | int i; |
| 670 | |
| 671 | /* free all allocated skbuffs */ |
| 672 | for (i = 0; i < lp->rx_ring_size; i++) { |
| 673 | lp->rx_ring[i].status = 0; /* CPU owns buffer */ |
| 674 | wmb(); /* Make sure adapter sees owner change */ |
| 675 | if (lp->rx_skbuff[i]) { |
| 676 | pci_unmap_single(lp->pci_dev, lp->rx_dma_addr[i], |
| 677 | PKT_BUF_SZ - 2, PCI_DMA_FROMDEVICE); |
| 678 | dev_kfree_skb_any(lp->rx_skbuff[i]); |
| 679 | } |
| 680 | lp->rx_skbuff[i] = NULL; |
| 681 | lp->rx_dma_addr[i] = 0; |
| 682 | } |
| 683 | } |
| 684 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 685 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 686 | static void pcnet32_poll_controller(struct net_device *dev) |
| 687 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 688 | disable_irq(dev->irq); |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 689 | pcnet32_interrupt(0, dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 690 | enable_irq(dev->irq); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 691 | } |
| 692 | #endif |
| 693 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 694 | static int pcnet32_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
| 695 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 696 | struct pcnet32_private *lp = netdev_priv(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 697 | unsigned long flags; |
| 698 | int r = -EOPNOTSUPP; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 699 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 700 | if (lp->mii) { |
| 701 | spin_lock_irqsave(&lp->lock, flags); |
| 702 | mii_ethtool_gset(&lp->mii_if, cmd); |
| 703 | spin_unlock_irqrestore(&lp->lock, flags); |
| 704 | r = 0; |
| 705 | } |
| 706 | return r; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 707 | } |
| 708 | |
| 709 | static int pcnet32_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
| 710 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 711 | struct pcnet32_private *lp = netdev_priv(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 712 | unsigned long flags; |
| 713 | int r = -EOPNOTSUPP; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 714 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 715 | if (lp->mii) { |
| 716 | spin_lock_irqsave(&lp->lock, flags); |
| 717 | r = mii_ethtool_sset(&lp->mii_if, cmd); |
| 718 | spin_unlock_irqrestore(&lp->lock, flags); |
| 719 | } |
| 720 | return r; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 721 | } |
| 722 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 723 | static void pcnet32_get_drvinfo(struct net_device *dev, |
| 724 | struct ethtool_drvinfo *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 725 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 726 | struct pcnet32_private *lp = netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 727 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 728 | strcpy(info->driver, DRV_NAME); |
| 729 | strcpy(info->version, DRV_VERSION); |
| 730 | if (lp->pci_dev) |
| 731 | strcpy(info->bus_info, pci_name(lp->pci_dev)); |
| 732 | else |
| 733 | sprintf(info->bus_info, "VLB 0x%lx", dev->base_addr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 734 | } |
| 735 | |
| 736 | static u32 pcnet32_get_link(struct net_device *dev) |
| 737 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 738 | struct pcnet32_private *lp = netdev_priv(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 739 | unsigned long flags; |
| 740 | int r; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 741 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 742 | spin_lock_irqsave(&lp->lock, flags); |
| 743 | if (lp->mii) { |
| 744 | r = mii_link_ok(&lp->mii_if); |
Don Fry | 8d91626 | 2006-08-22 10:22:37 -0700 | [diff] [blame] | 745 | } else if (lp->chip_version >= PCNET32_79C970A) { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 746 | ulong ioaddr = dev->base_addr; /* card base I/O address */ |
| 747 | r = (lp->a.read_bcr(ioaddr, 4) != 0xc0); |
Don Fry | 8d91626 | 2006-08-22 10:22:37 -0700 | [diff] [blame] | 748 | } else { /* can not detect link on really old chips */ |
| 749 | r = 1; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 750 | } |
| 751 | spin_unlock_irqrestore(&lp->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 752 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 753 | return r; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 754 | } |
| 755 | |
| 756 | static u32 pcnet32_get_msglevel(struct net_device *dev) |
| 757 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 758 | struct pcnet32_private *lp = netdev_priv(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 759 | return lp->msg_enable; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 760 | } |
| 761 | |
| 762 | static void pcnet32_set_msglevel(struct net_device *dev, u32 value) |
| 763 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 764 | struct pcnet32_private *lp = netdev_priv(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 765 | lp->msg_enable = value; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 766 | } |
| 767 | |
| 768 | static int pcnet32_nway_reset(struct net_device *dev) |
| 769 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 770 | struct pcnet32_private *lp = netdev_priv(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 771 | unsigned long flags; |
| 772 | int r = -EOPNOTSUPP; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 773 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 774 | if (lp->mii) { |
| 775 | spin_lock_irqsave(&lp->lock, flags); |
| 776 | r = mii_nway_restart(&lp->mii_if); |
| 777 | spin_unlock_irqrestore(&lp->lock, flags); |
| 778 | } |
| 779 | return r; |
| 780 | } |
| 781 | |
| 782 | static void pcnet32_get_ringparam(struct net_device *dev, |
| 783 | struct ethtool_ringparam *ering) |
| 784 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 785 | struct pcnet32_private *lp = netdev_priv(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 786 | |
Don Fry | 6dcd60c | 2006-06-29 13:53:23 -0700 | [diff] [blame] | 787 | ering->tx_max_pending = TX_MAX_RING_SIZE; |
| 788 | ering->tx_pending = lp->tx_ring_size; |
| 789 | ering->rx_max_pending = RX_MAX_RING_SIZE; |
| 790 | ering->rx_pending = lp->rx_ring_size; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 791 | } |
| 792 | |
| 793 | static int pcnet32_set_ringparam(struct net_device *dev, |
| 794 | struct ethtool_ringparam *ering) |
| 795 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 796 | struct pcnet32_private *lp = netdev_priv(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 797 | unsigned long flags; |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 798 | unsigned int size; |
| 799 | ulong ioaddr = dev->base_addr; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 800 | int i; |
| 801 | |
| 802 | if (ering->rx_mini_pending || ering->rx_jumbo_pending) |
| 803 | return -EINVAL; |
| 804 | |
| 805 | if (netif_running(dev)) |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 806 | pcnet32_netif_stop(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 807 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 808 | spin_lock_irqsave(&lp->lock, flags); |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 809 | lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); /* stop the chip */ |
| 810 | |
| 811 | size = min(ering->tx_pending, (unsigned int)TX_MAX_RING_SIZE); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 812 | |
| 813 | /* set the minimum ring size to 4, to allow the loopback test to work |
| 814 | * unchanged. |
| 815 | */ |
| 816 | for (i = 2; i <= PCNET32_LOG_MAX_TX_BUFFERS; i++) { |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 817 | if (size <= (1 << i)) |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 818 | break; |
| 819 | } |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 820 | if ((1 << i) != lp->tx_ring_size) |
| 821 | pcnet32_realloc_tx_ring(dev, lp, i); |
Don Fry | b368a3f | 2006-09-13 10:16:07 -0700 | [diff] [blame] | 822 | |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 823 | size = min(ering->rx_pending, (unsigned int)RX_MAX_RING_SIZE); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 824 | for (i = 2; i <= PCNET32_LOG_MAX_RX_BUFFERS; i++) { |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 825 | if (size <= (1 << i)) |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 826 | break; |
| 827 | } |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 828 | if ((1 << i) != lp->rx_ring_size) |
| 829 | pcnet32_realloc_rx_ring(dev, lp, i); |
Don Fry | b368a3f | 2006-09-13 10:16:07 -0700 | [diff] [blame] | 830 | |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 831 | lp->napi.weight = lp->rx_ring_size / 2; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 832 | |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 833 | if (netif_running(dev)) { |
| 834 | pcnet32_netif_start(dev); |
| 835 | pcnet32_restart(dev, CSR0_NORMAL); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 836 | } |
| 837 | |
Don Fry | a88c844 | 2005-11-01 12:04:33 -0800 | [diff] [blame] | 838 | spin_unlock_irqrestore(&lp->lock, flags); |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 839 | |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 840 | if (netif_msg_drv(lp)) |
| 841 | printk(KERN_INFO |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 842 | "%s: Ring Param Settings: RX: %d, TX: %d\n", dev->name, |
| 843 | lp->rx_ring_size, lp->tx_ring_size); |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 844 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 845 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 846 | } |
| 847 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 848 | static void pcnet32_get_strings(struct net_device *dev, u32 stringset, |
| 849 | u8 * data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 850 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 851 | memcpy(data, pcnet32_gstrings_test, sizeof(pcnet32_gstrings_test)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 852 | } |
| 853 | |
Jeff Garzik | b9f2c04 | 2007-10-03 18:07:32 -0700 | [diff] [blame] | 854 | static int pcnet32_get_sset_count(struct net_device *dev, int sset) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 855 | { |
Jeff Garzik | b9f2c04 | 2007-10-03 18:07:32 -0700 | [diff] [blame] | 856 | switch (sset) { |
| 857 | case ETH_SS_TEST: |
| 858 | return PCNET32_TEST_LEN; |
| 859 | default: |
| 860 | return -EOPNOTSUPP; |
| 861 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 862 | } |
| 863 | |
| 864 | static void pcnet32_ethtool_test(struct net_device *dev, |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 865 | struct ethtool_test *test, u64 * data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 866 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 867 | struct pcnet32_private *lp = netdev_priv(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 868 | int rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 869 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 870 | if (test->flags == ETH_TEST_FL_OFFLINE) { |
| 871 | rc = pcnet32_loopback_test(dev, data); |
| 872 | if (rc) { |
| 873 | if (netif_msg_hw(lp)) |
| 874 | printk(KERN_DEBUG "%s: Loopback test failed.\n", |
| 875 | dev->name); |
| 876 | test->flags |= ETH_TEST_FL_FAILED; |
| 877 | } else if (netif_msg_hw(lp)) |
| 878 | printk(KERN_DEBUG "%s: Loopback test passed.\n", |
| 879 | dev->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 880 | } else if (netif_msg_hw(lp)) |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 881 | printk(KERN_DEBUG |
| 882 | "%s: No tests to run (specify 'Offline' on ethtool).", |
| 883 | dev->name); |
| 884 | } /* end pcnet32_ethtool_test */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 885 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 886 | static int pcnet32_loopback_test(struct net_device *dev, uint64_t * data1) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 887 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 888 | struct pcnet32_private *lp = netdev_priv(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 889 | struct pcnet32_access *a = &lp->a; /* access to registers */ |
| 890 | ulong ioaddr = dev->base_addr; /* card base I/O address */ |
| 891 | struct sk_buff *skb; /* sk buff */ |
| 892 | int x, i; /* counters */ |
| 893 | int numbuffs = 4; /* number of TX/RX buffers and descs */ |
| 894 | u16 status = 0x8300; /* TX ring status */ |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 895 | __le16 teststatus; /* test of ring status */ |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 896 | int rc; /* return code */ |
| 897 | int size; /* size of packets */ |
| 898 | unsigned char *packet; /* source packet data */ |
| 899 | static const int data_len = 60; /* length of source packets */ |
| 900 | unsigned long flags; |
| 901 | unsigned long ticks; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 902 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 903 | rc = 1; /* default to fail */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 904 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 905 | if (netif_running(dev)) |
Don Fry | 7de745e | 2006-09-13 10:16:53 -0700 | [diff] [blame] | 906 | #ifdef CONFIG_PCNET32_NAPI |
| 907 | pcnet32_netif_stop(dev); |
| 908 | #else |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 909 | pcnet32_close(dev); |
Don Fry | 7de745e | 2006-09-13 10:16:53 -0700 | [diff] [blame] | 910 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 911 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 912 | spin_lock_irqsave(&lp->lock, flags); |
Don Fry | ac5bfe4 | 2006-06-29 13:55:27 -0700 | [diff] [blame] | 913 | lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); /* stop the chip */ |
| 914 | |
| 915 | numbuffs = min(numbuffs, (int)min(lp->rx_ring_size, lp->tx_ring_size)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 916 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 917 | /* Reset the PCNET32 */ |
| 918 | lp->a.reset(ioaddr); |
Don Fry | b368a3f | 2006-09-13 10:16:07 -0700 | [diff] [blame] | 919 | lp->a.write_csr(ioaddr, CSR4, 0x0915); /* auto tx pad */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 920 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 921 | /* switch pcnet32 to 32bit mode */ |
| 922 | lp->a.write_bcr(ioaddr, 20, 2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 923 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 924 | /* purge & init rings but don't actually restart */ |
| 925 | pcnet32_restart(dev, 0x0000); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 926 | |
Don Fry | ac5bfe4 | 2006-06-29 13:55:27 -0700 | [diff] [blame] | 927 | lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); /* Set STOP bit */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 928 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 929 | /* Initialize Transmit buffers. */ |
| 930 | size = data_len + 15; |
| 931 | for (x = 0; x < numbuffs; x++) { |
| 932 | if (!(skb = dev_alloc_skb(size))) { |
| 933 | if (netif_msg_hw(lp)) |
| 934 | printk(KERN_DEBUG |
| 935 | "%s: Cannot allocate skb at line: %d!\n", |
| 936 | dev->name, __LINE__); |
| 937 | goto clean_up; |
| 938 | } else { |
| 939 | packet = skb->data; |
| 940 | skb_put(skb, size); /* create space for data */ |
| 941 | lp->tx_skbuff[x] = skb; |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 942 | lp->tx_ring[x].length = cpu_to_le16(-skb->len); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 943 | lp->tx_ring[x].misc = 0; |
| 944 | |
| 945 | /* put DA and SA into the skb */ |
| 946 | for (i = 0; i < 6; i++) |
| 947 | *packet++ = dev->dev_addr[i]; |
| 948 | for (i = 0; i < 6; i++) |
| 949 | *packet++ = dev->dev_addr[i]; |
| 950 | /* type */ |
| 951 | *packet++ = 0x08; |
| 952 | *packet++ = 0x06; |
| 953 | /* packet number */ |
| 954 | *packet++ = x; |
| 955 | /* fill packet with data */ |
| 956 | for (i = 0; i < data_len; i++) |
| 957 | *packet++ = i; |
| 958 | |
| 959 | lp->tx_dma_addr[x] = |
| 960 | pci_map_single(lp->pci_dev, skb->data, skb->len, |
| 961 | PCI_DMA_TODEVICE); |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 962 | lp->tx_ring[x].base = cpu_to_le32(lp->tx_dma_addr[x]); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 963 | wmb(); /* Make sure owner changes after all others are visible */ |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 964 | lp->tx_ring[x].status = cpu_to_le16(status); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 965 | } |
| 966 | } |
| 967 | |
Don Fry | ac5bfe4 | 2006-06-29 13:55:27 -0700 | [diff] [blame] | 968 | x = a->read_bcr(ioaddr, 32); /* set internal loopback in BCR32 */ |
| 969 | a->write_bcr(ioaddr, 32, x | 0x0002); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 970 | |
Don Fry | ac5bfe4 | 2006-06-29 13:55:27 -0700 | [diff] [blame] | 971 | /* set int loopback in CSR15 */ |
| 972 | x = a->read_csr(ioaddr, CSR15) & 0xfffc; |
| 973 | lp->a.write_csr(ioaddr, CSR15, x | 0x0044); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 974 | |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 975 | teststatus = cpu_to_le16(0x8000); |
Don Fry | ac5bfe4 | 2006-06-29 13:55:27 -0700 | [diff] [blame] | 976 | lp->a.write_csr(ioaddr, CSR0, CSR0_START); /* Set STRT bit */ |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 977 | |
| 978 | /* Check status of descriptors */ |
| 979 | for (x = 0; x < numbuffs; x++) { |
| 980 | ticks = 0; |
| 981 | rmb(); |
| 982 | while ((lp->rx_ring[x].status & teststatus) && (ticks < 200)) { |
| 983 | spin_unlock_irqrestore(&lp->lock, flags); |
Don Fry | ac5bfe4 | 2006-06-29 13:55:27 -0700 | [diff] [blame] | 984 | msleep(1); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 985 | spin_lock_irqsave(&lp->lock, flags); |
| 986 | rmb(); |
| 987 | ticks++; |
| 988 | } |
| 989 | if (ticks == 200) { |
| 990 | if (netif_msg_hw(lp)) |
| 991 | printk("%s: Desc %d failed to reset!\n", |
| 992 | dev->name, x); |
| 993 | break; |
| 994 | } |
| 995 | } |
| 996 | |
Don Fry | ac5bfe4 | 2006-06-29 13:55:27 -0700 | [diff] [blame] | 997 | lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); /* Set STOP bit */ |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 998 | wmb(); |
| 999 | if (netif_msg_hw(lp) && netif_msg_pktdata(lp)) { |
| 1000 | printk(KERN_DEBUG "%s: RX loopback packets:\n", dev->name); |
| 1001 | |
| 1002 | for (x = 0; x < numbuffs; x++) { |
| 1003 | printk(KERN_DEBUG "%s: Packet %d:\n", dev->name, x); |
| 1004 | skb = lp->rx_skbuff[x]; |
| 1005 | for (i = 0; i < size; i++) { |
| 1006 | printk("%02x ", *(skb->data + i)); |
| 1007 | } |
| 1008 | printk("\n"); |
| 1009 | } |
| 1010 | } |
| 1011 | |
| 1012 | x = 0; |
| 1013 | rc = 0; |
| 1014 | while (x < numbuffs && !rc) { |
| 1015 | skb = lp->rx_skbuff[x]; |
| 1016 | packet = lp->tx_skbuff[x]->data; |
| 1017 | for (i = 0; i < size; i++) { |
| 1018 | if (*(skb->data + i) != packet[i]) { |
| 1019 | if (netif_msg_hw(lp)) |
| 1020 | printk(KERN_DEBUG |
| 1021 | "%s: Error in compare! %2x - %02x %02x\n", |
| 1022 | dev->name, i, *(skb->data + i), |
| 1023 | packet[i]); |
| 1024 | rc = 1; |
| 1025 | break; |
| 1026 | } |
| 1027 | } |
| 1028 | x++; |
| 1029 | } |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1030 | |
| 1031 | clean_up: |
Don Fry | ac5bfe4 | 2006-06-29 13:55:27 -0700 | [diff] [blame] | 1032 | *data1 = rc; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1033 | pcnet32_purge_tx_ring(dev); |
Don Fry | ac5bfe4 | 2006-06-29 13:55:27 -0700 | [diff] [blame] | 1034 | |
| 1035 | x = a->read_csr(ioaddr, CSR15); |
| 1036 | a->write_csr(ioaddr, CSR15, (x & ~0x0044)); /* reset bits 6 and 2 */ |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1037 | |
| 1038 | x = a->read_bcr(ioaddr, 32); /* reset internal loopback */ |
Don Fry | ac5bfe4 | 2006-06-29 13:55:27 -0700 | [diff] [blame] | 1039 | a->write_bcr(ioaddr, 32, (x & ~0x0002)); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1040 | |
Don Fry | 7de745e | 2006-09-13 10:16:53 -0700 | [diff] [blame] | 1041 | #ifdef CONFIG_PCNET32_NAPI |
| 1042 | if (netif_running(dev)) { |
| 1043 | pcnet32_netif_start(dev); |
| 1044 | pcnet32_restart(dev, CSR0_NORMAL); |
| 1045 | } else { |
| 1046 | pcnet32_purge_rx_ring(dev); |
| 1047 | lp->a.write_bcr(ioaddr, 20, 4); /* return to 16bit mode */ |
| 1048 | } |
| 1049 | spin_unlock_irqrestore(&lp->lock, flags); |
| 1050 | #else |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1051 | if (netif_running(dev)) { |
Don Fry | ac5bfe4 | 2006-06-29 13:55:27 -0700 | [diff] [blame] | 1052 | spin_unlock_irqrestore(&lp->lock, flags); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1053 | pcnet32_open(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1054 | } else { |
Don Fry | ac5bfe4 | 2006-06-29 13:55:27 -0700 | [diff] [blame] | 1055 | pcnet32_purge_rx_ring(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1056 | lp->a.write_bcr(ioaddr, 20, 4); /* return to 16bit mode */ |
Don Fry | ac5bfe4 | 2006-06-29 13:55:27 -0700 | [diff] [blame] | 1057 | spin_unlock_irqrestore(&lp->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1058 | } |
Don Fry | 7de745e | 2006-09-13 10:16:53 -0700 | [diff] [blame] | 1059 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1060 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1061 | return (rc); |
| 1062 | } /* end pcnet32_loopback_test */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1063 | |
| 1064 | static void pcnet32_led_blink_callback(struct net_device *dev) |
| 1065 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 1066 | struct pcnet32_private *lp = netdev_priv(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1067 | struct pcnet32_access *a = &lp->a; |
| 1068 | ulong ioaddr = dev->base_addr; |
| 1069 | unsigned long flags; |
| 1070 | int i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1071 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1072 | spin_lock_irqsave(&lp->lock, flags); |
| 1073 | for (i = 4; i < 8; i++) { |
| 1074 | a->write_bcr(ioaddr, i, a->read_bcr(ioaddr, i) ^ 0x4000); |
| 1075 | } |
| 1076 | spin_unlock_irqrestore(&lp->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1077 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1078 | mod_timer(&lp->blink_timer, PCNET32_BLINK_TIMEOUT); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1079 | } |
| 1080 | |
| 1081 | static int pcnet32_phys_id(struct net_device *dev, u32 data) |
| 1082 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 1083 | struct pcnet32_private *lp = netdev_priv(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1084 | struct pcnet32_access *a = &lp->a; |
| 1085 | ulong ioaddr = dev->base_addr; |
| 1086 | unsigned long flags; |
| 1087 | int i, regs[4]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1088 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1089 | if (!lp->blink_timer.function) { |
| 1090 | init_timer(&lp->blink_timer); |
| 1091 | lp->blink_timer.function = (void *)pcnet32_led_blink_callback; |
| 1092 | lp->blink_timer.data = (unsigned long)dev; |
| 1093 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1094 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1095 | /* Save the current value of the bcrs */ |
| 1096 | spin_lock_irqsave(&lp->lock, flags); |
| 1097 | for (i = 4; i < 8; i++) { |
| 1098 | regs[i - 4] = a->read_bcr(ioaddr, i); |
| 1099 | } |
| 1100 | spin_unlock_irqrestore(&lp->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1101 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1102 | mod_timer(&lp->blink_timer, jiffies); |
| 1103 | set_current_state(TASK_INTERRUPTIBLE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1104 | |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 1105 | /* AV: the limit here makes no sense whatsoever */ |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1106 | if ((!data) || (data > (u32) (MAX_SCHEDULE_TIMEOUT / HZ))) |
| 1107 | data = (u32) (MAX_SCHEDULE_TIMEOUT / HZ); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1108 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1109 | msleep_interruptible(data * 1000); |
| 1110 | del_timer_sync(&lp->blink_timer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1111 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1112 | /* Restore the original value of the bcrs */ |
| 1113 | spin_lock_irqsave(&lp->lock, flags); |
| 1114 | for (i = 4; i < 8; i++) { |
| 1115 | a->write_bcr(ioaddr, i, regs[i - 4]); |
| 1116 | } |
| 1117 | spin_unlock_irqrestore(&lp->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1118 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1119 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1120 | } |
| 1121 | |
Don Fry | df27f4a | 2006-06-29 13:55:02 -0700 | [diff] [blame] | 1122 | /* |
| 1123 | * lp->lock must be held. |
| 1124 | */ |
| 1125 | static int pcnet32_suspend(struct net_device *dev, unsigned long *flags, |
| 1126 | int can_sleep) |
| 1127 | { |
| 1128 | int csr5; |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 1129 | struct pcnet32_private *lp = netdev_priv(dev); |
Don Fry | df27f4a | 2006-06-29 13:55:02 -0700 | [diff] [blame] | 1130 | struct pcnet32_access *a = &lp->a; |
| 1131 | ulong ioaddr = dev->base_addr; |
| 1132 | int ticks; |
| 1133 | |
Don Fry | 8d91626 | 2006-08-22 10:22:37 -0700 | [diff] [blame] | 1134 | /* really old chips have to be stopped. */ |
| 1135 | if (lp->chip_version < PCNET32_79C970A) |
| 1136 | return 0; |
| 1137 | |
Don Fry | df27f4a | 2006-06-29 13:55:02 -0700 | [diff] [blame] | 1138 | /* set SUSPEND (SPND) - CSR5 bit 0 */ |
| 1139 | csr5 = a->read_csr(ioaddr, CSR5); |
| 1140 | a->write_csr(ioaddr, CSR5, csr5 | CSR5_SUSPEND); |
| 1141 | |
| 1142 | /* poll waiting for bit to be set */ |
| 1143 | ticks = 0; |
| 1144 | while (!(a->read_csr(ioaddr, CSR5) & CSR5_SUSPEND)) { |
| 1145 | spin_unlock_irqrestore(&lp->lock, *flags); |
| 1146 | if (can_sleep) |
| 1147 | msleep(1); |
| 1148 | else |
| 1149 | mdelay(1); |
| 1150 | spin_lock_irqsave(&lp->lock, *flags); |
| 1151 | ticks++; |
| 1152 | if (ticks > 200) { |
| 1153 | if (netif_msg_hw(lp)) |
| 1154 | printk(KERN_DEBUG |
| 1155 | "%s: Error getting into suspend!\n", |
| 1156 | dev->name); |
| 1157 | return 0; |
| 1158 | } |
| 1159 | } |
| 1160 | return 1; |
| 1161 | } |
| 1162 | |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 1163 | /* |
| 1164 | * process one receive descriptor entry |
| 1165 | */ |
Don Fry | 9691edd | 2006-09-13 10:16:21 -0700 | [diff] [blame] | 1166 | |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 1167 | static void pcnet32_rx_entry(struct net_device *dev, |
| 1168 | struct pcnet32_private *lp, |
| 1169 | struct pcnet32_rx_head *rxp, |
| 1170 | int entry) |
| 1171 | { |
| 1172 | int status = (short)le16_to_cpu(rxp->status) >> 8; |
| 1173 | int rx_in_place = 0; |
| 1174 | struct sk_buff *skb; |
| 1175 | short pkt_len; |
| 1176 | |
| 1177 | if (status != 0x03) { /* There was an error. */ |
| 1178 | /* |
| 1179 | * There is a tricky error noted by John Murphy, |
| 1180 | * <murf@perftech.com> to Russ Nelson: Even with full-sized |
| 1181 | * buffers it's possible for a jabber packet to use two |
| 1182 | * buffers, with only the last correctly noting the error. |
| 1183 | */ |
| 1184 | if (status & 0x01) /* Only count a general error at the */ |
| 1185 | lp->stats.rx_errors++; /* end of a packet. */ |
| 1186 | if (status & 0x20) |
| 1187 | lp->stats.rx_frame_errors++; |
| 1188 | if (status & 0x10) |
| 1189 | lp->stats.rx_over_errors++; |
| 1190 | if (status & 0x08) |
| 1191 | lp->stats.rx_crc_errors++; |
| 1192 | if (status & 0x04) |
| 1193 | lp->stats.rx_fifo_errors++; |
| 1194 | return; |
| 1195 | } |
| 1196 | |
| 1197 | pkt_len = (le32_to_cpu(rxp->msg_length) & 0xfff) - 4; |
| 1198 | |
| 1199 | /* Discard oversize frames. */ |
| 1200 | if (unlikely(pkt_len > PKT_BUF_SZ - 2)) { |
| 1201 | if (netif_msg_drv(lp)) |
| 1202 | printk(KERN_ERR "%s: Impossible packet size %d!\n", |
| 1203 | dev->name, pkt_len); |
| 1204 | lp->stats.rx_errors++; |
| 1205 | return; |
| 1206 | } |
| 1207 | if (pkt_len < 60) { |
| 1208 | if (netif_msg_rx_err(lp)) |
| 1209 | printk(KERN_ERR "%s: Runt packet!\n", dev->name); |
| 1210 | lp->stats.rx_errors++; |
| 1211 | return; |
| 1212 | } |
| 1213 | |
| 1214 | if (pkt_len > rx_copybreak) { |
| 1215 | struct sk_buff *newskb; |
| 1216 | |
| 1217 | if ((newskb = dev_alloc_skb(PKT_BUF_SZ))) { |
| 1218 | skb_reserve(newskb, 2); |
| 1219 | skb = lp->rx_skbuff[entry]; |
| 1220 | pci_unmap_single(lp->pci_dev, |
| 1221 | lp->rx_dma_addr[entry], |
| 1222 | PKT_BUF_SZ - 2, |
| 1223 | PCI_DMA_FROMDEVICE); |
| 1224 | skb_put(skb, pkt_len); |
| 1225 | lp->rx_skbuff[entry] = newskb; |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 1226 | lp->rx_dma_addr[entry] = |
| 1227 | pci_map_single(lp->pci_dev, |
| 1228 | newskb->data, |
| 1229 | PKT_BUF_SZ - 2, |
| 1230 | PCI_DMA_FROMDEVICE); |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 1231 | rxp->base = cpu_to_le32(lp->rx_dma_addr[entry]); |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 1232 | rx_in_place = 1; |
| 1233 | } else |
| 1234 | skb = NULL; |
| 1235 | } else { |
| 1236 | skb = dev_alloc_skb(pkt_len + 2); |
| 1237 | } |
| 1238 | |
| 1239 | if (skb == NULL) { |
| 1240 | if (netif_msg_drv(lp)) |
| 1241 | printk(KERN_ERR |
| 1242 | "%s: Memory squeeze, dropping packet.\n", |
| 1243 | dev->name); |
| 1244 | lp->stats.rx_dropped++; |
| 1245 | return; |
| 1246 | } |
| 1247 | skb->dev = dev; |
| 1248 | if (!rx_in_place) { |
| 1249 | skb_reserve(skb, 2); /* 16 byte align */ |
| 1250 | skb_put(skb, pkt_len); /* Make room */ |
| 1251 | pci_dma_sync_single_for_cpu(lp->pci_dev, |
| 1252 | lp->rx_dma_addr[entry], |
Don Fry | b2cbbd8 | 2007-03-05 18:13:09 -0800 | [diff] [blame] | 1253 | pkt_len, |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 1254 | PCI_DMA_FROMDEVICE); |
David S. Miller | 8c7b7fa | 2007-07-10 22:08:12 -0700 | [diff] [blame] | 1255 | skb_copy_to_linear_data(skb, |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 1256 | (unsigned char *)(lp->rx_skbuff[entry]->data), |
David S. Miller | 8c7b7fa | 2007-07-10 22:08:12 -0700 | [diff] [blame] | 1257 | pkt_len); |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 1258 | pci_dma_sync_single_for_device(lp->pci_dev, |
| 1259 | lp->rx_dma_addr[entry], |
Don Fry | b2cbbd8 | 2007-03-05 18:13:09 -0800 | [diff] [blame] | 1260 | pkt_len, |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 1261 | PCI_DMA_FROMDEVICE); |
| 1262 | } |
| 1263 | lp->stats.rx_bytes += skb->len; |
| 1264 | skb->protocol = eth_type_trans(skb, dev); |
Don Fry | 7de745e | 2006-09-13 10:16:53 -0700 | [diff] [blame] | 1265 | #ifdef CONFIG_PCNET32_NAPI |
| 1266 | netif_receive_skb(skb); |
| 1267 | #else |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 1268 | netif_rx(skb); |
Don Fry | 7de745e | 2006-09-13 10:16:53 -0700 | [diff] [blame] | 1269 | #endif |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 1270 | dev->last_rx = jiffies; |
| 1271 | lp->stats.rx_packets++; |
| 1272 | return; |
| 1273 | } |
| 1274 | |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 1275 | static int pcnet32_rx(struct net_device *dev, int budget) |
Don Fry | 9691edd | 2006-09-13 10:16:21 -0700 | [diff] [blame] | 1276 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 1277 | struct pcnet32_private *lp = netdev_priv(dev); |
Don Fry | 9691edd | 2006-09-13 10:16:21 -0700 | [diff] [blame] | 1278 | int entry = lp->cur_rx & lp->rx_mod_mask; |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 1279 | struct pcnet32_rx_head *rxp = &lp->rx_ring[entry]; |
| 1280 | int npackets = 0; |
Don Fry | 9691edd | 2006-09-13 10:16:21 -0700 | [diff] [blame] | 1281 | |
| 1282 | /* If we own the next entry, it's a new packet. Send it up. */ |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 1283 | while (npackets < budget && (short)le16_to_cpu(rxp->status) >= 0) { |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 1284 | pcnet32_rx_entry(dev, lp, rxp, entry); |
| 1285 | npackets += 1; |
Don Fry | 9691edd | 2006-09-13 10:16:21 -0700 | [diff] [blame] | 1286 | /* |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 1287 | * The docs say that the buffer length isn't touched, but Andrew |
| 1288 | * Boyd of QNX reports that some revs of the 79C965 clear it. |
Don Fry | 9691edd | 2006-09-13 10:16:21 -0700 | [diff] [blame] | 1289 | */ |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 1290 | rxp->buf_length = cpu_to_le16(2 - PKT_BUF_SZ); |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 1291 | wmb(); /* Make sure owner changes after others are visible */ |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 1292 | rxp->status = cpu_to_le16(0x8000); |
Don Fry | 9691edd | 2006-09-13 10:16:21 -0700 | [diff] [blame] | 1293 | entry = (++lp->cur_rx) & lp->rx_mod_mask; |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 1294 | rxp = &lp->rx_ring[entry]; |
Don Fry | 9691edd | 2006-09-13 10:16:21 -0700 | [diff] [blame] | 1295 | } |
| 1296 | |
Don Fry | 7de745e | 2006-09-13 10:16:53 -0700 | [diff] [blame] | 1297 | return npackets; |
Don Fry | 9691edd | 2006-09-13 10:16:21 -0700 | [diff] [blame] | 1298 | } |
| 1299 | |
Don Fry | 7de745e | 2006-09-13 10:16:53 -0700 | [diff] [blame] | 1300 | static int pcnet32_tx(struct net_device *dev) |
Don Fry | 9691edd | 2006-09-13 10:16:21 -0700 | [diff] [blame] | 1301 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 1302 | struct pcnet32_private *lp = netdev_priv(dev); |
Don Fry | 9691edd | 2006-09-13 10:16:21 -0700 | [diff] [blame] | 1303 | unsigned int dirty_tx = lp->dirty_tx; |
| 1304 | int delta; |
| 1305 | int must_restart = 0; |
| 1306 | |
| 1307 | while (dirty_tx != lp->cur_tx) { |
| 1308 | int entry = dirty_tx & lp->tx_mod_mask; |
| 1309 | int status = (short)le16_to_cpu(lp->tx_ring[entry].status); |
| 1310 | |
| 1311 | if (status < 0) |
| 1312 | break; /* It still hasn't been Txed */ |
| 1313 | |
| 1314 | lp->tx_ring[entry].base = 0; |
| 1315 | |
| 1316 | if (status & 0x4000) { |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 1317 | /* There was a major error, log it. */ |
Don Fry | 9691edd | 2006-09-13 10:16:21 -0700 | [diff] [blame] | 1318 | int err_status = le32_to_cpu(lp->tx_ring[entry].misc); |
| 1319 | lp->stats.tx_errors++; |
| 1320 | if (netif_msg_tx_err(lp)) |
| 1321 | printk(KERN_ERR |
| 1322 | "%s: Tx error status=%04x err_status=%08x\n", |
| 1323 | dev->name, status, |
| 1324 | err_status); |
| 1325 | if (err_status & 0x04000000) |
| 1326 | lp->stats.tx_aborted_errors++; |
| 1327 | if (err_status & 0x08000000) |
| 1328 | lp->stats.tx_carrier_errors++; |
| 1329 | if (err_status & 0x10000000) |
| 1330 | lp->stats.tx_window_errors++; |
| 1331 | #ifndef DO_DXSUFLO |
| 1332 | if (err_status & 0x40000000) { |
| 1333 | lp->stats.tx_fifo_errors++; |
| 1334 | /* Ackk! On FIFO errors the Tx unit is turned off! */ |
| 1335 | /* Remove this verbosity later! */ |
| 1336 | if (netif_msg_tx_err(lp)) |
| 1337 | printk(KERN_ERR |
Don Fry | 7de745e | 2006-09-13 10:16:53 -0700 | [diff] [blame] | 1338 | "%s: Tx FIFO error!\n", |
| 1339 | dev->name); |
Don Fry | 9691edd | 2006-09-13 10:16:21 -0700 | [diff] [blame] | 1340 | must_restart = 1; |
| 1341 | } |
| 1342 | #else |
| 1343 | if (err_status & 0x40000000) { |
| 1344 | lp->stats.tx_fifo_errors++; |
| 1345 | if (!lp->dxsuflo) { /* If controller doesn't recover ... */ |
| 1346 | /* Ackk! On FIFO errors the Tx unit is turned off! */ |
| 1347 | /* Remove this verbosity later! */ |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 1348 | if (netif_msg_tx_err(lp)) |
Don Fry | 9691edd | 2006-09-13 10:16:21 -0700 | [diff] [blame] | 1349 | printk(KERN_ERR |
Don Fry | 7de745e | 2006-09-13 10:16:53 -0700 | [diff] [blame] | 1350 | "%s: Tx FIFO error!\n", |
| 1351 | dev->name); |
Don Fry | 9691edd | 2006-09-13 10:16:21 -0700 | [diff] [blame] | 1352 | must_restart = 1; |
| 1353 | } |
| 1354 | } |
| 1355 | #endif |
| 1356 | } else { |
| 1357 | if (status & 0x1800) |
| 1358 | lp->stats.collisions++; |
| 1359 | lp->stats.tx_packets++; |
| 1360 | } |
| 1361 | |
| 1362 | /* We must free the original skb */ |
| 1363 | if (lp->tx_skbuff[entry]) { |
| 1364 | pci_unmap_single(lp->pci_dev, |
| 1365 | lp->tx_dma_addr[entry], |
| 1366 | lp->tx_skbuff[entry]-> |
| 1367 | len, PCI_DMA_TODEVICE); |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 1368 | dev_kfree_skb_any(lp->tx_skbuff[entry]); |
Don Fry | 9691edd | 2006-09-13 10:16:21 -0700 | [diff] [blame] | 1369 | lp->tx_skbuff[entry] = NULL; |
| 1370 | lp->tx_dma_addr[entry] = 0; |
| 1371 | } |
| 1372 | dirty_tx++; |
| 1373 | } |
| 1374 | |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 1375 | delta = (lp->cur_tx - dirty_tx) & (lp->tx_mod_mask + lp->tx_ring_size); |
Don Fry | 9691edd | 2006-09-13 10:16:21 -0700 | [diff] [blame] | 1376 | if (delta > lp->tx_ring_size) { |
| 1377 | if (netif_msg_drv(lp)) |
| 1378 | printk(KERN_ERR |
| 1379 | "%s: out-of-sync dirty pointer, %d vs. %d, full=%d.\n", |
| 1380 | dev->name, dirty_tx, lp->cur_tx, |
| 1381 | lp->tx_full); |
| 1382 | dirty_tx += lp->tx_ring_size; |
| 1383 | delta -= lp->tx_ring_size; |
| 1384 | } |
| 1385 | |
| 1386 | if (lp->tx_full && |
| 1387 | netif_queue_stopped(dev) && |
| 1388 | delta < lp->tx_ring_size - 2) { |
| 1389 | /* The ring is no longer full, clear tbusy. */ |
| 1390 | lp->tx_full = 0; |
| 1391 | netif_wake_queue(dev); |
| 1392 | } |
| 1393 | lp->dirty_tx = dirty_tx; |
| 1394 | |
| 1395 | return must_restart; |
| 1396 | } |
| 1397 | |
Don Fry | 7de745e | 2006-09-13 10:16:53 -0700 | [diff] [blame] | 1398 | #ifdef CONFIG_PCNET32_NAPI |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 1399 | static int pcnet32_poll(struct napi_struct *napi, int budget) |
Don Fry | 7de745e | 2006-09-13 10:16:53 -0700 | [diff] [blame] | 1400 | { |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 1401 | struct pcnet32_private *lp = container_of(napi, struct pcnet32_private, napi); |
| 1402 | struct net_device *dev = lp->dev; |
Don Fry | 7de745e | 2006-09-13 10:16:53 -0700 | [diff] [blame] | 1403 | unsigned long ioaddr = dev->base_addr; |
| 1404 | unsigned long flags; |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 1405 | int work_done; |
Don Fry | 7de745e | 2006-09-13 10:16:53 -0700 | [diff] [blame] | 1406 | u16 val; |
| 1407 | |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 1408 | work_done = pcnet32_rx(dev, budget); |
Don Fry | 7de745e | 2006-09-13 10:16:53 -0700 | [diff] [blame] | 1409 | |
| 1410 | spin_lock_irqsave(&lp->lock, flags); |
| 1411 | if (pcnet32_tx(dev)) { |
| 1412 | /* reset the chip to clear the error condition, then restart */ |
| 1413 | lp->a.reset(ioaddr); |
| 1414 | lp->a.write_csr(ioaddr, CSR4, 0x0915); /* auto tx pad */ |
| 1415 | pcnet32_restart(dev, CSR0_START); |
| 1416 | netif_wake_queue(dev); |
| 1417 | } |
| 1418 | spin_unlock_irqrestore(&lp->lock, flags); |
| 1419 | |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 1420 | if (work_done < budget) { |
| 1421 | spin_lock_irqsave(&lp->lock, flags); |
Don Fry | 7de745e | 2006-09-13 10:16:53 -0700 | [diff] [blame] | 1422 | |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 1423 | __netif_rx_complete(dev, napi); |
| 1424 | |
| 1425 | /* clear interrupt masks */ |
| 1426 | val = lp->a.read_csr(ioaddr, CSR3); |
| 1427 | val &= 0x00ff; |
| 1428 | lp->a.write_csr(ioaddr, CSR3, val); |
| 1429 | |
| 1430 | /* Set interrupt enable. */ |
| 1431 | lp->a.write_csr(ioaddr, CSR0, CSR0_INTEN); |
| 1432 | mmiowb(); |
| 1433 | spin_unlock_irqrestore(&lp->lock, flags); |
Don Fry | 7de745e | 2006-09-13 10:16:53 -0700 | [diff] [blame] | 1434 | } |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 1435 | return work_done; |
Don Fry | 7de745e | 2006-09-13 10:16:53 -0700 | [diff] [blame] | 1436 | } |
| 1437 | #endif |
| 1438 | |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 1439 | #define PCNET32_REGS_PER_PHY 32 |
| 1440 | #define PCNET32_MAX_PHYS 32 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1441 | static int pcnet32_get_regs_len(struct net_device *dev) |
| 1442 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 1443 | struct pcnet32_private *lp = netdev_priv(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1444 | int j = lp->phycount * PCNET32_REGS_PER_PHY; |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 1445 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1446 | return ((PCNET32_NUM_REGS + j) * sizeof(u16)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1447 | } |
| 1448 | |
| 1449 | static void pcnet32_get_regs(struct net_device *dev, struct ethtool_regs *regs, |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1450 | void *ptr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1451 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1452 | int i, csr0; |
| 1453 | u16 *buff = ptr; |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 1454 | struct pcnet32_private *lp = netdev_priv(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1455 | struct pcnet32_access *a = &lp->a; |
| 1456 | ulong ioaddr = dev->base_addr; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1457 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1458 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1459 | spin_lock_irqsave(&lp->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1460 | |
Don Fry | df27f4a | 2006-06-29 13:55:02 -0700 | [diff] [blame] | 1461 | csr0 = a->read_csr(ioaddr, CSR0); |
| 1462 | if (!(csr0 & CSR0_STOP)) /* If not stopped */ |
| 1463 | pcnet32_suspend(dev, &flags, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1464 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1465 | /* read address PROM */ |
| 1466 | for (i = 0; i < 16; i += 2) |
| 1467 | *buff++ = inw(ioaddr + i); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1468 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1469 | /* read control and status registers */ |
| 1470 | for (i = 0; i < 90; i++) { |
| 1471 | *buff++ = a->read_csr(ioaddr, i); |
| 1472 | } |
| 1473 | |
| 1474 | *buff++ = a->read_csr(ioaddr, 112); |
| 1475 | *buff++ = a->read_csr(ioaddr, 114); |
| 1476 | |
| 1477 | /* read bus configuration registers */ |
| 1478 | for (i = 0; i < 30; i++) { |
| 1479 | *buff++ = a->read_bcr(ioaddr, i); |
| 1480 | } |
| 1481 | *buff++ = 0; /* skip bcr30 so as not to hang 79C976 */ |
| 1482 | for (i = 31; i < 36; i++) { |
| 1483 | *buff++ = a->read_bcr(ioaddr, i); |
| 1484 | } |
| 1485 | |
| 1486 | /* read mii phy registers */ |
| 1487 | if (lp->mii) { |
| 1488 | int j; |
| 1489 | for (j = 0; j < PCNET32_MAX_PHYS; j++) { |
| 1490 | if (lp->phymask & (1 << j)) { |
| 1491 | for (i = 0; i < PCNET32_REGS_PER_PHY; i++) { |
| 1492 | lp->a.write_bcr(ioaddr, 33, |
| 1493 | (j << 5) | i); |
| 1494 | *buff++ = lp->a.read_bcr(ioaddr, 34); |
| 1495 | } |
| 1496 | } |
| 1497 | } |
| 1498 | } |
| 1499 | |
Don Fry | df27f4a | 2006-06-29 13:55:02 -0700 | [diff] [blame] | 1500 | if (!(csr0 & CSR0_STOP)) { /* If not stopped */ |
| 1501 | int csr5; |
| 1502 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1503 | /* clear SUSPEND (SPND) - CSR5 bit 0 */ |
Don Fry | df27f4a | 2006-06-29 13:55:02 -0700 | [diff] [blame] | 1504 | csr5 = a->read_csr(ioaddr, CSR5); |
| 1505 | a->write_csr(ioaddr, CSR5, csr5 & (~CSR5_SUSPEND)); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1506 | } |
| 1507 | |
| 1508 | spin_unlock_irqrestore(&lp->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1509 | } |
| 1510 | |
Jeff Garzik | 7282d49 | 2006-09-13 14:30:00 -0400 | [diff] [blame] | 1511 | static const struct ethtool_ops pcnet32_ethtool_ops = { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1512 | .get_settings = pcnet32_get_settings, |
| 1513 | .set_settings = pcnet32_set_settings, |
| 1514 | .get_drvinfo = pcnet32_get_drvinfo, |
| 1515 | .get_msglevel = pcnet32_get_msglevel, |
| 1516 | .set_msglevel = pcnet32_set_msglevel, |
| 1517 | .nway_reset = pcnet32_nway_reset, |
| 1518 | .get_link = pcnet32_get_link, |
| 1519 | .get_ringparam = pcnet32_get_ringparam, |
| 1520 | .set_ringparam = pcnet32_set_ringparam, |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1521 | .get_strings = pcnet32_get_strings, |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1522 | .self_test = pcnet32_ethtool_test, |
| 1523 | .phys_id = pcnet32_phys_id, |
| 1524 | .get_regs_len = pcnet32_get_regs_len, |
| 1525 | .get_regs = pcnet32_get_regs, |
Jeff Garzik | b9f2c04 | 2007-10-03 18:07:32 -0700 | [diff] [blame] | 1526 | .get_sset_count = pcnet32_get_sset_count, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1527 | }; |
| 1528 | |
| 1529 | /* only probes for non-PCI devices, the rest are handled by |
| 1530 | * pci_register_driver via pcnet32_probe_pci */ |
| 1531 | |
Don Fry | dcaf976 | 2006-06-29 13:52:29 -0700 | [diff] [blame] | 1532 | static void __devinit pcnet32_probe_vlbus(unsigned int *pcnet32_portlist) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1533 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1534 | unsigned int *port, ioaddr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1535 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1536 | /* search for PCnet32 VLB cards at known addresses */ |
| 1537 | for (port = pcnet32_portlist; (ioaddr = *port); port++) { |
| 1538 | if (request_region |
| 1539 | (ioaddr, PCNET32_TOTAL_SIZE, "pcnet32_probe_vlbus")) { |
| 1540 | /* check if there is really a pcnet chip on that ioaddr */ |
| 1541 | if ((inb(ioaddr + 14) == 0x57) |
| 1542 | && (inb(ioaddr + 15) == 0x57)) { |
| 1543 | pcnet32_probe1(ioaddr, 0, NULL); |
| 1544 | } else { |
| 1545 | release_region(ioaddr, PCNET32_TOTAL_SIZE); |
| 1546 | } |
| 1547 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1548 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1549 | } |
| 1550 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1551 | static int __devinit |
| 1552 | pcnet32_probe_pci(struct pci_dev *pdev, const struct pci_device_id *ent) |
| 1553 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1554 | unsigned long ioaddr; |
| 1555 | int err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1556 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1557 | err = pci_enable_device(pdev); |
| 1558 | if (err < 0) { |
| 1559 | if (pcnet32_debug & NETIF_MSG_PROBE) |
| 1560 | printk(KERN_ERR PFX |
| 1561 | "failed to enable device -- err=%d\n", err); |
| 1562 | return err; |
| 1563 | } |
| 1564 | pci_set_master(pdev); |
| 1565 | |
| 1566 | ioaddr = pci_resource_start(pdev, 0); |
| 1567 | if (!ioaddr) { |
| 1568 | if (pcnet32_debug & NETIF_MSG_PROBE) |
| 1569 | printk(KERN_ERR PFX |
| 1570 | "card has no PCI IO resources, aborting\n"); |
| 1571 | return -ENODEV; |
| 1572 | } |
| 1573 | |
| 1574 | if (!pci_dma_supported(pdev, PCNET32_DMA_MASK)) { |
| 1575 | if (pcnet32_debug & NETIF_MSG_PROBE) |
| 1576 | printk(KERN_ERR PFX |
| 1577 | "architecture does not support 32bit PCI busmaster DMA\n"); |
| 1578 | return -ENODEV; |
| 1579 | } |
| 1580 | if (request_region(ioaddr, PCNET32_TOTAL_SIZE, "pcnet32_probe_pci") == |
| 1581 | NULL) { |
| 1582 | if (pcnet32_debug & NETIF_MSG_PROBE) |
| 1583 | printk(KERN_ERR PFX |
| 1584 | "io address range already allocated\n"); |
| 1585 | return -EBUSY; |
| 1586 | } |
| 1587 | |
| 1588 | err = pcnet32_probe1(ioaddr, 1, pdev); |
| 1589 | if (err < 0) { |
| 1590 | pci_disable_device(pdev); |
| 1591 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1592 | return err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1593 | } |
| 1594 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1595 | /* pcnet32_probe1 |
| 1596 | * Called from both pcnet32_probe_vlbus and pcnet_probe_pci. |
| 1597 | * pdev will be NULL when called from pcnet32_probe_vlbus. |
| 1598 | */ |
| 1599 | static int __devinit |
| 1600 | pcnet32_probe1(unsigned long ioaddr, int shared, struct pci_dev *pdev) |
| 1601 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1602 | struct pcnet32_private *lp; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1603 | int i, media; |
| 1604 | int fdx, mii, fset, dxsuflo; |
| 1605 | int chip_version; |
| 1606 | char *chipname; |
| 1607 | struct net_device *dev; |
| 1608 | struct pcnet32_access *a = NULL; |
| 1609 | u8 promaddr[6]; |
| 1610 | int ret = -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1611 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1612 | /* reset the chip */ |
| 1613 | pcnet32_wio_reset(ioaddr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1614 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1615 | /* NOTE: 16-bit check is first, otherwise some older PCnet chips fail */ |
| 1616 | if (pcnet32_wio_read_csr(ioaddr, 0) == 4 && pcnet32_wio_check(ioaddr)) { |
| 1617 | a = &pcnet32_wio; |
| 1618 | } else { |
| 1619 | pcnet32_dwio_reset(ioaddr); |
| 1620 | if (pcnet32_dwio_read_csr(ioaddr, 0) == 4 |
| 1621 | && pcnet32_dwio_check(ioaddr)) { |
| 1622 | a = &pcnet32_dwio; |
| 1623 | } else |
| 1624 | goto err_release_region; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1625 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1626 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1627 | chip_version = |
| 1628 | a->read_csr(ioaddr, 88) | (a->read_csr(ioaddr, 89) << 16); |
| 1629 | if ((pcnet32_debug & NETIF_MSG_PROBE) && (pcnet32_debug & NETIF_MSG_HW)) |
| 1630 | printk(KERN_INFO " PCnet chip version is %#x.\n", |
| 1631 | chip_version); |
| 1632 | if ((chip_version & 0xfff) != 0x003) { |
| 1633 | if (pcnet32_debug & NETIF_MSG_PROBE) |
| 1634 | printk(KERN_INFO PFX "Unsupported chip version.\n"); |
| 1635 | goto err_release_region; |
| 1636 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1637 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1638 | /* initialize variables */ |
| 1639 | fdx = mii = fset = dxsuflo = 0; |
| 1640 | chip_version = (chip_version >> 12) & 0xffff; |
| 1641 | |
| 1642 | switch (chip_version) { |
| 1643 | case 0x2420: |
| 1644 | chipname = "PCnet/PCI 79C970"; /* PCI */ |
| 1645 | break; |
| 1646 | case 0x2430: |
| 1647 | if (shared) |
| 1648 | chipname = "PCnet/PCI 79C970"; /* 970 gives the wrong chip id back */ |
| 1649 | else |
| 1650 | chipname = "PCnet/32 79C965"; /* 486/VL bus */ |
| 1651 | break; |
| 1652 | case 0x2621: |
| 1653 | chipname = "PCnet/PCI II 79C970A"; /* PCI */ |
| 1654 | fdx = 1; |
| 1655 | break; |
| 1656 | case 0x2623: |
| 1657 | chipname = "PCnet/FAST 79C971"; /* PCI */ |
| 1658 | fdx = 1; |
| 1659 | mii = 1; |
| 1660 | fset = 1; |
| 1661 | break; |
| 1662 | case 0x2624: |
| 1663 | chipname = "PCnet/FAST+ 79C972"; /* PCI */ |
| 1664 | fdx = 1; |
| 1665 | mii = 1; |
| 1666 | fset = 1; |
| 1667 | break; |
| 1668 | case 0x2625: |
| 1669 | chipname = "PCnet/FAST III 79C973"; /* PCI */ |
| 1670 | fdx = 1; |
| 1671 | mii = 1; |
| 1672 | break; |
| 1673 | case 0x2626: |
| 1674 | chipname = "PCnet/Home 79C978"; /* PCI */ |
| 1675 | fdx = 1; |
| 1676 | /* |
| 1677 | * This is based on specs published at www.amd.com. This section |
| 1678 | * assumes that a card with a 79C978 wants to go into standard |
| 1679 | * ethernet mode. The 79C978 can also go into 1Mb HomePNA mode, |
| 1680 | * and the module option homepna=1 can select this instead. |
| 1681 | */ |
| 1682 | media = a->read_bcr(ioaddr, 49); |
| 1683 | media &= ~3; /* default to 10Mb ethernet */ |
| 1684 | if (cards_found < MAX_UNITS && homepna[cards_found]) |
| 1685 | media |= 1; /* switch to home wiring mode */ |
| 1686 | if (pcnet32_debug & NETIF_MSG_PROBE) |
| 1687 | printk(KERN_DEBUG PFX "media set to %sMbit mode.\n", |
| 1688 | (media & 1) ? "1" : "10"); |
| 1689 | a->write_bcr(ioaddr, 49, media); |
| 1690 | break; |
| 1691 | case 0x2627: |
| 1692 | chipname = "PCnet/FAST III 79C975"; /* PCI */ |
| 1693 | fdx = 1; |
| 1694 | mii = 1; |
| 1695 | break; |
| 1696 | case 0x2628: |
| 1697 | chipname = "PCnet/PRO 79C976"; |
| 1698 | fdx = 1; |
| 1699 | mii = 1; |
| 1700 | break; |
| 1701 | default: |
| 1702 | if (pcnet32_debug & NETIF_MSG_PROBE) |
| 1703 | printk(KERN_INFO PFX |
| 1704 | "PCnet version %#x, no PCnet32 chip.\n", |
| 1705 | chip_version); |
| 1706 | goto err_release_region; |
| 1707 | } |
| 1708 | |
| 1709 | /* |
| 1710 | * On selected chips turn on the BCR18:NOUFLO bit. This stops transmit |
| 1711 | * starting until the packet is loaded. Strike one for reliability, lose |
| 1712 | * one for latency - although on PCI this isnt a big loss. Older chips |
| 1713 | * have FIFO's smaller than a packet, so you can't do this. |
| 1714 | * Turn on BCR18:BurstRdEn and BCR18:BurstWrEn. |
| 1715 | */ |
| 1716 | |
| 1717 | if (fset) { |
| 1718 | a->write_bcr(ioaddr, 18, (a->read_bcr(ioaddr, 18) | 0x0860)); |
| 1719 | a->write_csr(ioaddr, 80, |
| 1720 | (a->read_csr(ioaddr, 80) & 0x0C00) | 0x0c00); |
| 1721 | dxsuflo = 1; |
| 1722 | } |
| 1723 | |
Don Fry | 6ecb766 | 2007-03-06 10:45:23 -0800 | [diff] [blame] | 1724 | dev = alloc_etherdev(sizeof(*lp)); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1725 | if (!dev) { |
| 1726 | if (pcnet32_debug & NETIF_MSG_PROBE) |
| 1727 | printk(KERN_ERR PFX "Memory allocation failed.\n"); |
| 1728 | ret = -ENOMEM; |
| 1729 | goto err_release_region; |
| 1730 | } |
| 1731 | SET_NETDEV_DEV(dev, &pdev->dev); |
| 1732 | |
| 1733 | if (pcnet32_debug & NETIF_MSG_PROBE) |
| 1734 | printk(KERN_INFO PFX "%s at %#3lx,", chipname, ioaddr); |
| 1735 | |
| 1736 | /* In most chips, after a chip reset, the ethernet address is read from the |
| 1737 | * station address PROM at the base address and programmed into the |
| 1738 | * "Physical Address Registers" CSR12-14. |
| 1739 | * As a precautionary measure, we read the PROM values and complain if |
Linas Vepstas | bc0e1fc | 2006-03-28 16:36:23 -0600 | [diff] [blame] | 1740 | * they disagree with the CSRs. If they miscompare, and the PROM addr |
| 1741 | * is valid, then the PROM addr is used. |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1742 | */ |
| 1743 | for (i = 0; i < 3; i++) { |
| 1744 | unsigned int val; |
| 1745 | val = a->read_csr(ioaddr, i + 12) & 0x0ffff; |
| 1746 | /* There may be endianness issues here. */ |
| 1747 | dev->dev_addr[2 * i] = val & 0x0ff; |
| 1748 | dev->dev_addr[2 * i + 1] = (val >> 8) & 0x0ff; |
| 1749 | } |
| 1750 | |
| 1751 | /* read PROM address and compare with CSR address */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1752 | for (i = 0; i < 6; i++) |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1753 | promaddr[i] = inb(ioaddr + i); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1754 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1755 | if (memcmp(promaddr, dev->dev_addr, 6) |
| 1756 | || !is_valid_ether_addr(dev->dev_addr)) { |
| 1757 | if (is_valid_ether_addr(promaddr)) { |
| 1758 | if (pcnet32_debug & NETIF_MSG_PROBE) { |
| 1759 | printk(" warning: CSR address invalid,\n"); |
| 1760 | printk(KERN_INFO |
| 1761 | " using instead PROM address of"); |
| 1762 | } |
| 1763 | memcpy(dev->dev_addr, promaddr, 6); |
| 1764 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1765 | } |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1766 | memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1767 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1768 | /* if the ethernet address is not valid, force to 00:00:00:00:00:00 */ |
| 1769 | if (!is_valid_ether_addr(dev->perm_addr)) |
| 1770 | memset(dev->dev_addr, 0, sizeof(dev->dev_addr)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1771 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1772 | if (pcnet32_debug & NETIF_MSG_PROBE) { |
| 1773 | for (i = 0; i < 6; i++) |
| 1774 | printk(" %2.2x", dev->dev_addr[i]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1775 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1776 | /* Version 0x2623 and 0x2624 */ |
| 1777 | if (((chip_version + 1) & 0xfffe) == 0x2624) { |
| 1778 | i = a->read_csr(ioaddr, 80) & 0x0C00; /* Check tx_start_pt */ |
| 1779 | printk("\n" KERN_INFO " tx_start_pt(0x%04x):", i); |
| 1780 | switch (i >> 10) { |
| 1781 | case 0: |
| 1782 | printk(" 20 bytes,"); |
| 1783 | break; |
| 1784 | case 1: |
| 1785 | printk(" 64 bytes,"); |
| 1786 | break; |
| 1787 | case 2: |
| 1788 | printk(" 128 bytes,"); |
| 1789 | break; |
| 1790 | case 3: |
| 1791 | printk("~220 bytes,"); |
| 1792 | break; |
| 1793 | } |
| 1794 | i = a->read_bcr(ioaddr, 18); /* Check Burst/Bus control */ |
| 1795 | printk(" BCR18(%x):", i & 0xffff); |
| 1796 | if (i & (1 << 5)) |
| 1797 | printk("BurstWrEn "); |
| 1798 | if (i & (1 << 6)) |
| 1799 | printk("BurstRdEn "); |
| 1800 | if (i & (1 << 7)) |
| 1801 | printk("DWordIO "); |
| 1802 | if (i & (1 << 11)) |
| 1803 | printk("NoUFlow "); |
| 1804 | i = a->read_bcr(ioaddr, 25); |
| 1805 | printk("\n" KERN_INFO " SRAMSIZE=0x%04x,", i << 8); |
| 1806 | i = a->read_bcr(ioaddr, 26); |
| 1807 | printk(" SRAM_BND=0x%04x,", i << 8); |
| 1808 | i = a->read_bcr(ioaddr, 27); |
| 1809 | if (i & (1 << 14)) |
| 1810 | printk("LowLatRx"); |
| 1811 | } |
| 1812 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1813 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1814 | dev->base_addr = ioaddr; |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 1815 | lp = netdev_priv(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1816 | /* pci_alloc_consistent returns page-aligned memory, so we do not have to check the alignment */ |
Don Fry | 6ecb766 | 2007-03-06 10:45:23 -0800 | [diff] [blame] | 1817 | if ((lp->init_block = |
| 1818 | pci_alloc_consistent(pdev, sizeof(*lp->init_block), &lp->init_dma_addr)) == NULL) { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1819 | if (pcnet32_debug & NETIF_MSG_PROBE) |
| 1820 | printk(KERN_ERR PFX |
| 1821 | "Consistent memory allocation failed.\n"); |
| 1822 | ret = -ENOMEM; |
| 1823 | goto err_free_netdev; |
| 1824 | } |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1825 | lp->pci_dev = pdev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1826 | |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 1827 | lp->dev = dev; |
| 1828 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1829 | spin_lock_init(&lp->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1830 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1831 | SET_NETDEV_DEV(dev, &pdev->dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1832 | lp->name = chipname; |
| 1833 | lp->shared_irq = shared; |
| 1834 | lp->tx_ring_size = TX_RING_SIZE; /* default tx ring size */ |
| 1835 | lp->rx_ring_size = RX_RING_SIZE; /* default rx ring size */ |
| 1836 | lp->tx_mod_mask = lp->tx_ring_size - 1; |
| 1837 | lp->rx_mod_mask = lp->rx_ring_size - 1; |
| 1838 | lp->tx_len_bits = (PCNET32_LOG_TX_BUFFERS << 12); |
| 1839 | lp->rx_len_bits = (PCNET32_LOG_RX_BUFFERS << 4); |
| 1840 | lp->mii_if.full_duplex = fdx; |
| 1841 | lp->mii_if.phy_id_mask = 0x1f; |
| 1842 | lp->mii_if.reg_num_mask = 0x1f; |
| 1843 | lp->dxsuflo = dxsuflo; |
| 1844 | lp->mii = mii; |
Don Fry | 8d91626 | 2006-08-22 10:22:37 -0700 | [diff] [blame] | 1845 | lp->chip_version = chip_version; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1846 | lp->msg_enable = pcnet32_debug; |
| 1847 | if ((cards_found >= MAX_UNITS) |
| 1848 | || (options[cards_found] > sizeof(options_mapping))) |
| 1849 | lp->options = PCNET32_PORT_ASEL; |
| 1850 | else |
| 1851 | lp->options = options_mapping[options[cards_found]]; |
| 1852 | lp->mii_if.dev = dev; |
| 1853 | lp->mii_if.mdio_read = mdio_read; |
| 1854 | lp->mii_if.mdio_write = mdio_write; |
| 1855 | |
Don Fry | feff348 | 2007-10-17 15:59:22 -0700 | [diff] [blame] | 1856 | /* napi.weight is used in both the napi and non-napi cases */ |
| 1857 | lp->napi.weight = lp->rx_ring_size / 2; |
| 1858 | |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 1859 | #ifdef CONFIG_PCNET32_NAPI |
| 1860 | netif_napi_add(dev, &lp->napi, pcnet32_poll, lp->rx_ring_size / 2); |
| 1861 | #endif |
| 1862 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1863 | if (fdx && !(lp->options & PCNET32_PORT_ASEL) && |
| 1864 | ((cards_found >= MAX_UNITS) || full_duplex[cards_found])) |
| 1865 | lp->options |= PCNET32_PORT_FD; |
| 1866 | |
| 1867 | if (!a) { |
| 1868 | if (pcnet32_debug & NETIF_MSG_PROBE) |
| 1869 | printk(KERN_ERR PFX "No access methods\n"); |
| 1870 | ret = -ENODEV; |
| 1871 | goto err_free_consistent; |
| 1872 | } |
| 1873 | lp->a = *a; |
| 1874 | |
| 1875 | /* prior to register_netdev, dev->name is not yet correct */ |
| 1876 | if (pcnet32_alloc_ring(dev, pci_name(lp->pci_dev))) { |
| 1877 | ret = -ENOMEM; |
| 1878 | goto err_free_ring; |
| 1879 | } |
| 1880 | /* detect special T1/E1 WAN card by checking for MAC address */ |
| 1881 | if (dev->dev_addr[0] == 0x00 && dev->dev_addr[1] == 0xe0 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1882 | && dev->dev_addr[2] == 0x75) |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1883 | lp->options = PCNET32_PORT_FD | PCNET32_PORT_GPSI; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1884 | |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 1885 | lp->init_block->mode = cpu_to_le16(0x0003); /* Disable Rx and Tx. */ |
Don Fry | 6ecb766 | 2007-03-06 10:45:23 -0800 | [diff] [blame] | 1886 | lp->init_block->tlen_rlen = |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 1887 | cpu_to_le16(lp->tx_len_bits | lp->rx_len_bits); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1888 | for (i = 0; i < 6; i++) |
Don Fry | 6ecb766 | 2007-03-06 10:45:23 -0800 | [diff] [blame] | 1889 | lp->init_block->phys_addr[i] = dev->dev_addr[i]; |
| 1890 | lp->init_block->filter[0] = 0x00000000; |
| 1891 | lp->init_block->filter[1] = 0x00000000; |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 1892 | lp->init_block->rx_ring = cpu_to_le32(lp->rx_ring_dma_addr); |
| 1893 | lp->init_block->tx_ring = cpu_to_le32(lp->tx_ring_dma_addr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1894 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1895 | /* switch pcnet32 to 32bit mode */ |
| 1896 | a->write_bcr(ioaddr, 20, 2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1897 | |
Don Fry | 6ecb766 | 2007-03-06 10:45:23 -0800 | [diff] [blame] | 1898 | a->write_csr(ioaddr, 1, (lp->init_dma_addr & 0xffff)); |
| 1899 | a->write_csr(ioaddr, 2, (lp->init_dma_addr >> 16)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1900 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1901 | if (pdev) { /* use the IRQ provided by PCI */ |
| 1902 | dev->irq = pdev->irq; |
| 1903 | if (pcnet32_debug & NETIF_MSG_PROBE) |
| 1904 | printk(" assigned IRQ %d.\n", dev->irq); |
| 1905 | } else { |
| 1906 | unsigned long irq_mask = probe_irq_on(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1907 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1908 | /* |
| 1909 | * To auto-IRQ we enable the initialization-done and DMA error |
| 1910 | * interrupts. For ISA boards we get a DMA error, but VLB and PCI |
| 1911 | * boards will work. |
| 1912 | */ |
| 1913 | /* Trigger an initialization just for the interrupt. */ |
Don Fry | b368a3f | 2006-09-13 10:16:07 -0700 | [diff] [blame] | 1914 | a->write_csr(ioaddr, CSR0, CSR0_INTEN | CSR0_INIT); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1915 | mdelay(1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1916 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1917 | dev->irq = probe_irq_off(irq_mask); |
| 1918 | if (!dev->irq) { |
| 1919 | if (pcnet32_debug & NETIF_MSG_PROBE) |
| 1920 | printk(", failed to detect IRQ line.\n"); |
| 1921 | ret = -ENODEV; |
| 1922 | goto err_free_ring; |
| 1923 | } |
| 1924 | if (pcnet32_debug & NETIF_MSG_PROBE) |
| 1925 | printk(", probed IRQ %d.\n", dev->irq); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1926 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1927 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1928 | /* Set the mii phy_id so that we can query the link state */ |
| 1929 | if (lp->mii) { |
| 1930 | /* lp->phycount and lp->phymask are set to 0 by memset above */ |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 1931 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1932 | lp->mii_if.phy_id = ((lp->a.read_bcr(ioaddr, 33)) >> 5) & 0x1f; |
| 1933 | /* scan for PHYs */ |
| 1934 | for (i = 0; i < PCNET32_MAX_PHYS; i++) { |
| 1935 | unsigned short id1, id2; |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 1936 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1937 | id1 = mdio_read(dev, i, MII_PHYSID1); |
| 1938 | if (id1 == 0xffff) |
| 1939 | continue; |
| 1940 | id2 = mdio_read(dev, i, MII_PHYSID2); |
| 1941 | if (id2 == 0xffff) |
| 1942 | continue; |
| 1943 | if (i == 31 && ((chip_version + 1) & 0xfffe) == 0x2624) |
| 1944 | continue; /* 79C971 & 79C972 have phantom phy at id 31 */ |
| 1945 | lp->phycount++; |
| 1946 | lp->phymask |= (1 << i); |
| 1947 | lp->mii_if.phy_id = i; |
| 1948 | if (pcnet32_debug & NETIF_MSG_PROBE) |
| 1949 | printk(KERN_INFO PFX |
| 1950 | "Found PHY %04x:%04x at address %d.\n", |
| 1951 | id1, id2, i); |
| 1952 | } |
| 1953 | lp->a.write_bcr(ioaddr, 33, (lp->mii_if.phy_id) << 5); |
| 1954 | if (lp->phycount > 1) { |
| 1955 | lp->options |= PCNET32_PORT_MII; |
| 1956 | } |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 1957 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1958 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1959 | init_timer(&lp->watchdog_timer); |
| 1960 | lp->watchdog_timer.data = (unsigned long)dev; |
| 1961 | lp->watchdog_timer.function = (void *)&pcnet32_watchdog; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1962 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1963 | /* The PCNET32-specific entries in the device structure. */ |
| 1964 | dev->open = &pcnet32_open; |
| 1965 | dev->hard_start_xmit = &pcnet32_start_xmit; |
| 1966 | dev->stop = &pcnet32_close; |
| 1967 | dev->get_stats = &pcnet32_get_stats; |
| 1968 | dev->set_multicast_list = &pcnet32_set_multicast_list; |
| 1969 | dev->do_ioctl = &pcnet32_ioctl; |
| 1970 | dev->ethtool_ops = &pcnet32_ethtool_ops; |
| 1971 | dev->tx_timeout = pcnet32_tx_timeout; |
| 1972 | dev->watchdog_timeo = (5 * HZ); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1973 | |
| 1974 | #ifdef CONFIG_NET_POLL_CONTROLLER |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1975 | dev->poll_controller = pcnet32_poll_controller; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1976 | #endif |
| 1977 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1978 | /* Fill in the generic fields of the device structure. */ |
| 1979 | if (register_netdev(dev)) |
| 1980 | goto err_free_ring; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1981 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1982 | if (pdev) { |
| 1983 | pci_set_drvdata(pdev, dev); |
| 1984 | } else { |
| 1985 | lp->next = pcnet32_dev; |
| 1986 | pcnet32_dev = dev; |
| 1987 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1988 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1989 | if (pcnet32_debug & NETIF_MSG_PROBE) |
| 1990 | printk(KERN_INFO "%s: registered as %s\n", dev->name, lp->name); |
| 1991 | cards_found++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1992 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1993 | /* enable LED writes */ |
| 1994 | a->write_bcr(ioaddr, 2, a->read_bcr(ioaddr, 2) | 0x1000); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1995 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1996 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1997 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1998 | err_free_ring: |
| 1999 | pcnet32_free_ring(dev); |
| 2000 | err_free_consistent: |
Don Fry | 6ecb766 | 2007-03-06 10:45:23 -0800 | [diff] [blame] | 2001 | pci_free_consistent(lp->pci_dev, sizeof(*lp->init_block), |
| 2002 | lp->init_block, lp->init_dma_addr); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2003 | err_free_netdev: |
| 2004 | free_netdev(dev); |
| 2005 | err_release_region: |
| 2006 | release_region(ioaddr, PCNET32_TOTAL_SIZE); |
| 2007 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2008 | } |
| 2009 | |
Don Fry | a88c844 | 2005-11-01 12:04:33 -0800 | [diff] [blame] | 2010 | /* if any allocation fails, caller must also call pcnet32_free_ring */ |
| 2011 | static int pcnet32_alloc_ring(struct net_device *dev, char *name) |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 2012 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 2013 | struct pcnet32_private *lp = netdev_priv(dev); |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 2014 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2015 | lp->tx_ring = pci_alloc_consistent(lp->pci_dev, |
| 2016 | sizeof(struct pcnet32_tx_head) * |
| 2017 | lp->tx_ring_size, |
| 2018 | &lp->tx_ring_dma_addr); |
| 2019 | if (lp->tx_ring == NULL) { |
Don Fry | 12fa30f | 2006-06-29 13:53:48 -0700 | [diff] [blame] | 2020 | if (netif_msg_drv(lp)) |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2021 | printk("\n" KERN_ERR PFX |
| 2022 | "%s: Consistent memory allocation failed.\n", |
| 2023 | name); |
| 2024 | return -ENOMEM; |
| 2025 | } |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 2026 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2027 | lp->rx_ring = pci_alloc_consistent(lp->pci_dev, |
| 2028 | sizeof(struct pcnet32_rx_head) * |
| 2029 | lp->rx_ring_size, |
| 2030 | &lp->rx_ring_dma_addr); |
| 2031 | if (lp->rx_ring == NULL) { |
Don Fry | 12fa30f | 2006-06-29 13:53:48 -0700 | [diff] [blame] | 2032 | if (netif_msg_drv(lp)) |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2033 | printk("\n" KERN_ERR PFX |
| 2034 | "%s: Consistent memory allocation failed.\n", |
| 2035 | name); |
| 2036 | return -ENOMEM; |
| 2037 | } |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 2038 | |
Don Fry | 12fa30f | 2006-06-29 13:53:48 -0700 | [diff] [blame] | 2039 | lp->tx_dma_addr = kcalloc(lp->tx_ring_size, sizeof(dma_addr_t), |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2040 | GFP_ATOMIC); |
| 2041 | if (!lp->tx_dma_addr) { |
Don Fry | 12fa30f | 2006-06-29 13:53:48 -0700 | [diff] [blame] | 2042 | if (netif_msg_drv(lp)) |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2043 | printk("\n" KERN_ERR PFX |
| 2044 | "%s: Memory allocation failed.\n", name); |
| 2045 | return -ENOMEM; |
| 2046 | } |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 2047 | |
Don Fry | 12fa30f | 2006-06-29 13:53:48 -0700 | [diff] [blame] | 2048 | lp->rx_dma_addr = kcalloc(lp->rx_ring_size, sizeof(dma_addr_t), |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2049 | GFP_ATOMIC); |
| 2050 | if (!lp->rx_dma_addr) { |
Don Fry | 12fa30f | 2006-06-29 13:53:48 -0700 | [diff] [blame] | 2051 | if (netif_msg_drv(lp)) |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2052 | printk("\n" KERN_ERR PFX |
| 2053 | "%s: Memory allocation failed.\n", name); |
| 2054 | return -ENOMEM; |
| 2055 | } |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 2056 | |
Don Fry | 12fa30f | 2006-06-29 13:53:48 -0700 | [diff] [blame] | 2057 | lp->tx_skbuff = kcalloc(lp->tx_ring_size, sizeof(struct sk_buff *), |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2058 | GFP_ATOMIC); |
| 2059 | if (!lp->tx_skbuff) { |
Don Fry | 12fa30f | 2006-06-29 13:53:48 -0700 | [diff] [blame] | 2060 | if (netif_msg_drv(lp)) |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2061 | printk("\n" KERN_ERR PFX |
| 2062 | "%s: Memory allocation failed.\n", name); |
| 2063 | return -ENOMEM; |
| 2064 | } |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 2065 | |
Don Fry | 12fa30f | 2006-06-29 13:53:48 -0700 | [diff] [blame] | 2066 | lp->rx_skbuff = kcalloc(lp->rx_ring_size, sizeof(struct sk_buff *), |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2067 | GFP_ATOMIC); |
| 2068 | if (!lp->rx_skbuff) { |
Don Fry | 12fa30f | 2006-06-29 13:53:48 -0700 | [diff] [blame] | 2069 | if (netif_msg_drv(lp)) |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2070 | printk("\n" KERN_ERR PFX |
| 2071 | "%s: Memory allocation failed.\n", name); |
| 2072 | return -ENOMEM; |
| 2073 | } |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 2074 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2075 | return 0; |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 2076 | } |
| 2077 | |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 2078 | static void pcnet32_free_ring(struct net_device *dev) |
| 2079 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 2080 | struct pcnet32_private *lp = netdev_priv(dev); |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 2081 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2082 | kfree(lp->tx_skbuff); |
| 2083 | lp->tx_skbuff = NULL; |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 2084 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2085 | kfree(lp->rx_skbuff); |
| 2086 | lp->rx_skbuff = NULL; |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 2087 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2088 | kfree(lp->tx_dma_addr); |
| 2089 | lp->tx_dma_addr = NULL; |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 2090 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2091 | kfree(lp->rx_dma_addr); |
| 2092 | lp->rx_dma_addr = NULL; |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 2093 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2094 | if (lp->tx_ring) { |
| 2095 | pci_free_consistent(lp->pci_dev, |
| 2096 | sizeof(struct pcnet32_tx_head) * |
| 2097 | lp->tx_ring_size, lp->tx_ring, |
| 2098 | lp->tx_ring_dma_addr); |
| 2099 | lp->tx_ring = NULL; |
| 2100 | } |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 2101 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2102 | if (lp->rx_ring) { |
| 2103 | pci_free_consistent(lp->pci_dev, |
| 2104 | sizeof(struct pcnet32_rx_head) * |
| 2105 | lp->rx_ring_size, lp->rx_ring, |
| 2106 | lp->rx_ring_dma_addr); |
| 2107 | lp->rx_ring = NULL; |
| 2108 | } |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 2109 | } |
| 2110 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2111 | static int pcnet32_open(struct net_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2112 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 2113 | struct pcnet32_private *lp = netdev_priv(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2114 | unsigned long ioaddr = dev->base_addr; |
| 2115 | u16 val; |
| 2116 | int i; |
| 2117 | int rc; |
| 2118 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2119 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2120 | if (request_irq(dev->irq, &pcnet32_interrupt, |
Thomas Gleixner | 1fb9df5 | 2006-07-01 19:29:39 -0700 | [diff] [blame] | 2121 | lp->shared_irq ? IRQF_SHARED : 0, dev->name, |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2122 | (void *)dev)) { |
| 2123 | return -EAGAIN; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2124 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2125 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2126 | spin_lock_irqsave(&lp->lock, flags); |
| 2127 | /* Check for a valid station address */ |
| 2128 | if (!is_valid_ether_addr(dev->dev_addr)) { |
| 2129 | rc = -EINVAL; |
| 2130 | goto err_free_irq; |
| 2131 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2132 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2133 | /* Reset the PCNET32 */ |
| 2134 | lp->a.reset(ioaddr); |
| 2135 | |
| 2136 | /* switch pcnet32 to 32bit mode */ |
| 2137 | lp->a.write_bcr(ioaddr, 20, 2); |
| 2138 | |
| 2139 | if (netif_msg_ifup(lp)) |
| 2140 | printk(KERN_DEBUG |
| 2141 | "%s: pcnet32_open() irq %d tx/rx rings %#x/%#x init %#x.\n", |
| 2142 | dev->name, dev->irq, (u32) (lp->tx_ring_dma_addr), |
| 2143 | (u32) (lp->rx_ring_dma_addr), |
Don Fry | 6ecb766 | 2007-03-06 10:45:23 -0800 | [diff] [blame] | 2144 | (u32) (lp->init_dma_addr)); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2145 | |
| 2146 | /* set/reset autoselect bit */ |
| 2147 | val = lp->a.read_bcr(ioaddr, 2) & ~2; |
| 2148 | if (lp->options & PCNET32_PORT_ASEL) |
| 2149 | val |= 2; |
| 2150 | lp->a.write_bcr(ioaddr, 2, val); |
| 2151 | |
| 2152 | /* handle full duplex setting */ |
| 2153 | if (lp->mii_if.full_duplex) { |
| 2154 | val = lp->a.read_bcr(ioaddr, 9) & ~3; |
| 2155 | if (lp->options & PCNET32_PORT_FD) { |
| 2156 | val |= 1; |
| 2157 | if (lp->options == (PCNET32_PORT_FD | PCNET32_PORT_AUI)) |
| 2158 | val |= 2; |
| 2159 | } else if (lp->options & PCNET32_PORT_ASEL) { |
| 2160 | /* workaround of xSeries250, turn on for 79C975 only */ |
Don Fry | 8d91626 | 2006-08-22 10:22:37 -0700 | [diff] [blame] | 2161 | if (lp->chip_version == 0x2627) |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2162 | val |= 3; |
| 2163 | } |
| 2164 | lp->a.write_bcr(ioaddr, 9, val); |
| 2165 | } |
| 2166 | |
| 2167 | /* set/reset GPSI bit in test register */ |
| 2168 | val = lp->a.read_csr(ioaddr, 124) & ~0x10; |
| 2169 | if ((lp->options & PCNET32_PORT_PORTSEL) == PCNET32_PORT_GPSI) |
| 2170 | val |= 0x10; |
| 2171 | lp->a.write_csr(ioaddr, 124, val); |
| 2172 | |
| 2173 | /* Allied Telesyn AT 2700/2701 FX are 100Mbit only and do not negotiate */ |
| 2174 | if (lp->pci_dev->subsystem_vendor == PCI_VENDOR_ID_AT && |
Don Fry | 2964bbd | 2005-11-01 12:50:57 -0800 | [diff] [blame] | 2175 | (lp->pci_dev->subsystem_device == PCI_SUBDEVICE_ID_AT_2700FX || |
| 2176 | lp->pci_dev->subsystem_device == PCI_SUBDEVICE_ID_AT_2701FX)) { |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 2177 | if (lp->options & PCNET32_PORT_ASEL) { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2178 | lp->options = PCNET32_PORT_FD | PCNET32_PORT_100; |
| 2179 | if (netif_msg_link(lp)) |
| 2180 | printk(KERN_DEBUG |
| 2181 | "%s: Setting 100Mb-Full Duplex.\n", |
| 2182 | dev->name); |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 2183 | } |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2184 | } |
| 2185 | if (lp->phycount < 2) { |
| 2186 | /* |
| 2187 | * 24 Jun 2004 according AMD, in order to change the PHY, |
| 2188 | * DANAS (or DISPM for 79C976) must be set; then select the speed, |
| 2189 | * duplex, and/or enable auto negotiation, and clear DANAS |
| 2190 | */ |
| 2191 | if (lp->mii && !(lp->options & PCNET32_PORT_ASEL)) { |
| 2192 | lp->a.write_bcr(ioaddr, 32, |
| 2193 | lp->a.read_bcr(ioaddr, 32) | 0x0080); |
| 2194 | /* disable Auto Negotiation, set 10Mpbs, HD */ |
| 2195 | val = lp->a.read_bcr(ioaddr, 32) & ~0xb8; |
| 2196 | if (lp->options & PCNET32_PORT_FD) |
| 2197 | val |= 0x10; |
| 2198 | if (lp->options & PCNET32_PORT_100) |
| 2199 | val |= 0x08; |
| 2200 | lp->a.write_bcr(ioaddr, 32, val); |
| 2201 | } else { |
| 2202 | if (lp->options & PCNET32_PORT_ASEL) { |
| 2203 | lp->a.write_bcr(ioaddr, 32, |
| 2204 | lp->a.read_bcr(ioaddr, |
| 2205 | 32) | 0x0080); |
| 2206 | /* enable auto negotiate, setup, disable fd */ |
| 2207 | val = lp->a.read_bcr(ioaddr, 32) & ~0x98; |
| 2208 | val |= 0x20; |
| 2209 | lp->a.write_bcr(ioaddr, 32, val); |
| 2210 | } |
| 2211 | } |
| 2212 | } else { |
| 2213 | int first_phy = -1; |
| 2214 | u16 bmcr; |
| 2215 | u32 bcr9; |
| 2216 | struct ethtool_cmd ecmd; |
| 2217 | |
| 2218 | /* |
| 2219 | * There is really no good other way to handle multiple PHYs |
| 2220 | * other than turning off all automatics |
| 2221 | */ |
| 2222 | val = lp->a.read_bcr(ioaddr, 2); |
| 2223 | lp->a.write_bcr(ioaddr, 2, val & ~2); |
| 2224 | val = lp->a.read_bcr(ioaddr, 32); |
| 2225 | lp->a.write_bcr(ioaddr, 32, val & ~(1 << 7)); /* stop MII manager */ |
| 2226 | |
| 2227 | if (!(lp->options & PCNET32_PORT_ASEL)) { |
| 2228 | /* setup ecmd */ |
| 2229 | ecmd.port = PORT_MII; |
| 2230 | ecmd.transceiver = XCVR_INTERNAL; |
| 2231 | ecmd.autoneg = AUTONEG_DISABLE; |
| 2232 | ecmd.speed = |
| 2233 | lp-> |
| 2234 | options & PCNET32_PORT_100 ? SPEED_100 : SPEED_10; |
| 2235 | bcr9 = lp->a.read_bcr(ioaddr, 9); |
| 2236 | |
| 2237 | if (lp->options & PCNET32_PORT_FD) { |
| 2238 | ecmd.duplex = DUPLEX_FULL; |
| 2239 | bcr9 |= (1 << 0); |
| 2240 | } else { |
| 2241 | ecmd.duplex = DUPLEX_HALF; |
| 2242 | bcr9 |= ~(1 << 0); |
| 2243 | } |
| 2244 | lp->a.write_bcr(ioaddr, 9, bcr9); |
| 2245 | } |
| 2246 | |
| 2247 | for (i = 0; i < PCNET32_MAX_PHYS; i++) { |
| 2248 | if (lp->phymask & (1 << i)) { |
| 2249 | /* isolate all but the first PHY */ |
| 2250 | bmcr = mdio_read(dev, i, MII_BMCR); |
| 2251 | if (first_phy == -1) { |
| 2252 | first_phy = i; |
| 2253 | mdio_write(dev, i, MII_BMCR, |
| 2254 | bmcr & ~BMCR_ISOLATE); |
| 2255 | } else { |
| 2256 | mdio_write(dev, i, MII_BMCR, |
| 2257 | bmcr | BMCR_ISOLATE); |
| 2258 | } |
| 2259 | /* use mii_ethtool_sset to setup PHY */ |
| 2260 | lp->mii_if.phy_id = i; |
| 2261 | ecmd.phy_address = i; |
| 2262 | if (lp->options & PCNET32_PORT_ASEL) { |
| 2263 | mii_ethtool_gset(&lp->mii_if, &ecmd); |
| 2264 | ecmd.autoneg = AUTONEG_ENABLE; |
| 2265 | } |
| 2266 | mii_ethtool_sset(&lp->mii_if, &ecmd); |
| 2267 | } |
| 2268 | } |
| 2269 | lp->mii_if.phy_id = first_phy; |
| 2270 | if (netif_msg_link(lp)) |
| 2271 | printk(KERN_INFO "%s: Using PHY number %d.\n", |
| 2272 | dev->name, first_phy); |
| 2273 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2274 | |
| 2275 | #ifdef DO_DXSUFLO |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2276 | if (lp->dxsuflo) { /* Disable transmit stop on underflow */ |
Don Fry | b368a3f | 2006-09-13 10:16:07 -0700 | [diff] [blame] | 2277 | val = lp->a.read_csr(ioaddr, CSR3); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2278 | val |= 0x40; |
Don Fry | b368a3f | 2006-09-13 10:16:07 -0700 | [diff] [blame] | 2279 | lp->a.write_csr(ioaddr, CSR3, val); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2280 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2281 | #endif |
| 2282 | |
Don Fry | 6ecb766 | 2007-03-06 10:45:23 -0800 | [diff] [blame] | 2283 | lp->init_block->mode = |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 2284 | cpu_to_le16((lp->options & PCNET32_PORT_PORTSEL) << 7); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2285 | pcnet32_load_multicast(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2286 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2287 | if (pcnet32_init_ring(dev)) { |
| 2288 | rc = -ENOMEM; |
| 2289 | goto err_free_ring; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2290 | } |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 2291 | |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 2292 | #ifdef CONFIG_PCNET32_NAPI |
| 2293 | napi_enable(&lp->napi); |
| 2294 | #endif |
| 2295 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2296 | /* Re-initialize the PCNET32, and start it when done. */ |
Don Fry | 6ecb766 | 2007-03-06 10:45:23 -0800 | [diff] [blame] | 2297 | lp->a.write_csr(ioaddr, 1, (lp->init_dma_addr & 0xffff)); |
| 2298 | lp->a.write_csr(ioaddr, 2, (lp->init_dma_addr >> 16)); |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 2299 | |
Don Fry | b368a3f | 2006-09-13 10:16:07 -0700 | [diff] [blame] | 2300 | lp->a.write_csr(ioaddr, CSR4, 0x0915); /* auto tx pad */ |
| 2301 | lp->a.write_csr(ioaddr, CSR0, CSR0_INIT); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2302 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2303 | netif_start_queue(dev); |
| 2304 | |
Don Fry | 8d91626 | 2006-08-22 10:22:37 -0700 | [diff] [blame] | 2305 | if (lp->chip_version >= PCNET32_79C970A) { |
| 2306 | /* Print the link status and start the watchdog */ |
| 2307 | pcnet32_check_media(dev, 1); |
| 2308 | mod_timer(&(lp->watchdog_timer), PCNET32_WATCHDOG_TIMEOUT); |
| 2309 | } |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2310 | |
| 2311 | i = 0; |
| 2312 | while (i++ < 100) |
Don Fry | b368a3f | 2006-09-13 10:16:07 -0700 | [diff] [blame] | 2313 | if (lp->a.read_csr(ioaddr, CSR0) & CSR0_IDON) |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2314 | break; |
| 2315 | /* |
| 2316 | * We used to clear the InitDone bit, 0x0100, here but Mark Stockton |
| 2317 | * reports that doing so triggers a bug in the '974. |
| 2318 | */ |
Don Fry | b368a3f | 2006-09-13 10:16:07 -0700 | [diff] [blame] | 2319 | lp->a.write_csr(ioaddr, CSR0, CSR0_NORMAL); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2320 | |
| 2321 | if (netif_msg_ifup(lp)) |
| 2322 | printk(KERN_DEBUG |
| 2323 | "%s: pcnet32 open after %d ticks, init block %#x csr0 %4.4x.\n", |
| 2324 | dev->name, i, |
Don Fry | 6ecb766 | 2007-03-06 10:45:23 -0800 | [diff] [blame] | 2325 | (u32) (lp->init_dma_addr), |
Don Fry | b368a3f | 2006-09-13 10:16:07 -0700 | [diff] [blame] | 2326 | lp->a.read_csr(ioaddr, CSR0)); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2327 | |
| 2328 | spin_unlock_irqrestore(&lp->lock, flags); |
| 2329 | |
| 2330 | return 0; /* Always succeed */ |
| 2331 | |
| 2332 | err_free_ring: |
| 2333 | /* free any allocated skbuffs */ |
Don Fry | ac5bfe4 | 2006-06-29 13:55:27 -0700 | [diff] [blame] | 2334 | pcnet32_purge_rx_ring(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2335 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2336 | /* |
| 2337 | * Switch back to 16bit mode to avoid problems with dumb |
| 2338 | * DOS packet driver after a warm reboot |
| 2339 | */ |
| 2340 | lp->a.write_bcr(ioaddr, 20, 4); |
| 2341 | |
| 2342 | err_free_irq: |
| 2343 | spin_unlock_irqrestore(&lp->lock, flags); |
| 2344 | free_irq(dev->irq, dev); |
| 2345 | return rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2346 | } |
| 2347 | |
| 2348 | /* |
| 2349 | * The LANCE has been halted for one reason or another (busmaster memory |
| 2350 | * arbitration error, Tx FIFO underflow, driver stopped it to reconfigure, |
| 2351 | * etc.). Modern LANCE variants always reload their ring-buffer |
| 2352 | * configuration when restarted, so we must reinitialize our ring |
| 2353 | * context before restarting. As part of this reinitialization, |
| 2354 | * find all packets still on the Tx ring and pretend that they had been |
| 2355 | * sent (in effect, drop the packets on the floor) - the higher-level |
| 2356 | * protocols will time out and retransmit. It'd be better to shuffle |
| 2357 | * these skbs to a temp list and then actually re-Tx them after |
| 2358 | * restarting the chip, but I'm too lazy to do so right now. dplatt@3do.com |
| 2359 | */ |
| 2360 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2361 | static void pcnet32_purge_tx_ring(struct net_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2362 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 2363 | struct pcnet32_private *lp = netdev_priv(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2364 | int i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2365 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2366 | for (i = 0; i < lp->tx_ring_size; i++) { |
| 2367 | lp->tx_ring[i].status = 0; /* CPU owns buffer */ |
| 2368 | wmb(); /* Make sure adapter sees owner change */ |
| 2369 | if (lp->tx_skbuff[i]) { |
| 2370 | pci_unmap_single(lp->pci_dev, lp->tx_dma_addr[i], |
| 2371 | lp->tx_skbuff[i]->len, |
| 2372 | PCI_DMA_TODEVICE); |
| 2373 | dev_kfree_skb_any(lp->tx_skbuff[i]); |
| 2374 | } |
| 2375 | lp->tx_skbuff[i] = NULL; |
| 2376 | lp->tx_dma_addr[i] = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2377 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2378 | } |
| 2379 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2380 | /* Initialize the PCNET32 Rx and Tx rings. */ |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2381 | static int pcnet32_init_ring(struct net_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2382 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 2383 | struct pcnet32_private *lp = netdev_priv(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2384 | int i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2385 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2386 | lp->tx_full = 0; |
| 2387 | lp->cur_rx = lp->cur_tx = 0; |
| 2388 | lp->dirty_rx = lp->dirty_tx = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2389 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2390 | for (i = 0; i < lp->rx_ring_size; i++) { |
| 2391 | struct sk_buff *rx_skbuff = lp->rx_skbuff[i]; |
| 2392 | if (rx_skbuff == NULL) { |
| 2393 | if (! |
| 2394 | (rx_skbuff = lp->rx_skbuff[i] = |
| 2395 | dev_alloc_skb(PKT_BUF_SZ))) { |
| 2396 | /* there is not much, we can do at this point */ |
Don Fry | b368a3f | 2006-09-13 10:16:07 -0700 | [diff] [blame] | 2397 | if (netif_msg_drv(lp)) |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2398 | printk(KERN_ERR |
| 2399 | "%s: pcnet32_init_ring dev_alloc_skb failed.\n", |
| 2400 | dev->name); |
| 2401 | return -1; |
| 2402 | } |
| 2403 | skb_reserve(rx_skbuff, 2); |
| 2404 | } |
| 2405 | |
| 2406 | rmb(); |
| 2407 | if (lp->rx_dma_addr[i] == 0) |
| 2408 | lp->rx_dma_addr[i] = |
| 2409 | pci_map_single(lp->pci_dev, rx_skbuff->data, |
| 2410 | PKT_BUF_SZ - 2, PCI_DMA_FROMDEVICE); |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 2411 | lp->rx_ring[i].base = cpu_to_le32(lp->rx_dma_addr[i]); |
| 2412 | lp->rx_ring[i].buf_length = cpu_to_le16(2 - PKT_BUF_SZ); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2413 | wmb(); /* Make sure owner changes after all others are visible */ |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 2414 | lp->rx_ring[i].status = cpu_to_le16(0x8000); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2415 | } |
| 2416 | /* The Tx buffer address is filled in as needed, but we do need to clear |
| 2417 | * the upper ownership bit. */ |
| 2418 | for (i = 0; i < lp->tx_ring_size; i++) { |
| 2419 | lp->tx_ring[i].status = 0; /* CPU owns buffer */ |
| 2420 | wmb(); /* Make sure adapter sees owner change */ |
| 2421 | lp->tx_ring[i].base = 0; |
| 2422 | lp->tx_dma_addr[i] = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2423 | } |
| 2424 | |
Don Fry | 6ecb766 | 2007-03-06 10:45:23 -0800 | [diff] [blame] | 2425 | lp->init_block->tlen_rlen = |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 2426 | cpu_to_le16(lp->tx_len_bits | lp->rx_len_bits); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2427 | for (i = 0; i < 6; i++) |
Don Fry | 6ecb766 | 2007-03-06 10:45:23 -0800 | [diff] [blame] | 2428 | lp->init_block->phys_addr[i] = dev->dev_addr[i]; |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 2429 | lp->init_block->rx_ring = cpu_to_le32(lp->rx_ring_dma_addr); |
| 2430 | lp->init_block->tx_ring = cpu_to_le32(lp->tx_ring_dma_addr); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2431 | wmb(); /* Make sure all changes are visible */ |
| 2432 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2433 | } |
| 2434 | |
| 2435 | /* the pcnet32 has been issued a stop or reset. Wait for the stop bit |
| 2436 | * then flush the pending transmit operations, re-initialize the ring, |
| 2437 | * and tell the chip to initialize. |
| 2438 | */ |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2439 | static void pcnet32_restart(struct net_device *dev, unsigned int csr0_bits) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2440 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 2441 | struct pcnet32_private *lp = netdev_priv(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2442 | unsigned long ioaddr = dev->base_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2443 | int i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2444 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2445 | /* wait for stop */ |
| 2446 | for (i = 0; i < 100; i++) |
Don Fry | b368a3f | 2006-09-13 10:16:07 -0700 | [diff] [blame] | 2447 | if (lp->a.read_csr(ioaddr, CSR0) & CSR0_STOP) |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2448 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2449 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2450 | if (i >= 100 && netif_msg_drv(lp)) |
| 2451 | printk(KERN_ERR |
| 2452 | "%s: pcnet32_restart timed out waiting for stop.\n", |
| 2453 | dev->name); |
| 2454 | |
| 2455 | pcnet32_purge_tx_ring(dev); |
| 2456 | if (pcnet32_init_ring(dev)) |
| 2457 | return; |
| 2458 | |
| 2459 | /* ReInit Ring */ |
Don Fry | b368a3f | 2006-09-13 10:16:07 -0700 | [diff] [blame] | 2460 | lp->a.write_csr(ioaddr, CSR0, CSR0_INIT); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2461 | i = 0; |
| 2462 | while (i++ < 1000) |
Don Fry | b368a3f | 2006-09-13 10:16:07 -0700 | [diff] [blame] | 2463 | if (lp->a.read_csr(ioaddr, CSR0) & CSR0_IDON) |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2464 | break; |
| 2465 | |
Don Fry | b368a3f | 2006-09-13 10:16:07 -0700 | [diff] [blame] | 2466 | lp->a.write_csr(ioaddr, CSR0, csr0_bits); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2467 | } |
| 2468 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2469 | static void pcnet32_tx_timeout(struct net_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2470 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 2471 | struct pcnet32_private *lp = netdev_priv(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2472 | unsigned long ioaddr = dev->base_addr, flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2473 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2474 | spin_lock_irqsave(&lp->lock, flags); |
| 2475 | /* Transmitter timeout, serious problems. */ |
| 2476 | if (pcnet32_debug & NETIF_MSG_DRV) |
| 2477 | printk(KERN_ERR |
| 2478 | "%s: transmit timed out, status %4.4x, resetting.\n", |
Don Fry | b368a3f | 2006-09-13 10:16:07 -0700 | [diff] [blame] | 2479 | dev->name, lp->a.read_csr(ioaddr, CSR0)); |
| 2480 | lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2481 | lp->stats.tx_errors++; |
| 2482 | if (netif_msg_tx_err(lp)) { |
| 2483 | int i; |
| 2484 | printk(KERN_DEBUG |
| 2485 | " Ring data dump: dirty_tx %d cur_tx %d%s cur_rx %d.", |
| 2486 | lp->dirty_tx, lp->cur_tx, lp->tx_full ? " (full)" : "", |
| 2487 | lp->cur_rx); |
| 2488 | for (i = 0; i < lp->rx_ring_size; i++) |
| 2489 | printk("%s %08x %04x %08x %04x", i & 1 ? "" : "\n ", |
| 2490 | le32_to_cpu(lp->rx_ring[i].base), |
| 2491 | (-le16_to_cpu(lp->rx_ring[i].buf_length)) & |
| 2492 | 0xffff, le32_to_cpu(lp->rx_ring[i].msg_length), |
| 2493 | le16_to_cpu(lp->rx_ring[i].status)); |
| 2494 | for (i = 0; i < lp->tx_ring_size; i++) |
| 2495 | printk("%s %08x %04x %08x %04x", i & 1 ? "" : "\n ", |
| 2496 | le32_to_cpu(lp->tx_ring[i].base), |
| 2497 | (-le16_to_cpu(lp->tx_ring[i].length)) & 0xffff, |
| 2498 | le32_to_cpu(lp->tx_ring[i].misc), |
| 2499 | le16_to_cpu(lp->tx_ring[i].status)); |
| 2500 | printk("\n"); |
| 2501 | } |
Don Fry | b368a3f | 2006-09-13 10:16:07 -0700 | [diff] [blame] | 2502 | pcnet32_restart(dev, CSR0_NORMAL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2503 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2504 | dev->trans_start = jiffies; |
| 2505 | netif_wake_queue(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2506 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2507 | spin_unlock_irqrestore(&lp->lock, flags); |
| 2508 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2509 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2510 | static int pcnet32_start_xmit(struct sk_buff *skb, struct net_device *dev) |
| 2511 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 2512 | struct pcnet32_private *lp = netdev_priv(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2513 | unsigned long ioaddr = dev->base_addr; |
| 2514 | u16 status; |
| 2515 | int entry; |
| 2516 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2517 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2518 | spin_lock_irqsave(&lp->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2519 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2520 | if (netif_msg_tx_queued(lp)) { |
| 2521 | printk(KERN_DEBUG |
| 2522 | "%s: pcnet32_start_xmit() called, csr0 %4.4x.\n", |
Don Fry | b368a3f | 2006-09-13 10:16:07 -0700 | [diff] [blame] | 2523 | dev->name, lp->a.read_csr(ioaddr, CSR0)); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2524 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2525 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2526 | /* Default status -- will not enable Successful-TxDone |
| 2527 | * interrupt when that option is available to us. |
| 2528 | */ |
| 2529 | status = 0x8300; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2530 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2531 | /* Fill in a Tx ring entry */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2532 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2533 | /* Mask to ring buffer boundary. */ |
| 2534 | entry = lp->cur_tx & lp->tx_mod_mask; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2535 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2536 | /* Caution: the write order is important here, set the status |
| 2537 | * with the "ownership" bits last. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2538 | |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 2539 | lp->tx_ring[entry].length = cpu_to_le16(-skb->len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2540 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2541 | lp->tx_ring[entry].misc = 0x00000000; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2542 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2543 | lp->tx_skbuff[entry] = skb; |
| 2544 | lp->tx_dma_addr[entry] = |
| 2545 | pci_map_single(lp->pci_dev, skb->data, skb->len, PCI_DMA_TODEVICE); |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 2546 | lp->tx_ring[entry].base = cpu_to_le32(lp->tx_dma_addr[entry]); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2547 | wmb(); /* Make sure owner changes after all others are visible */ |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 2548 | lp->tx_ring[entry].status = cpu_to_le16(status); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2549 | |
| 2550 | lp->cur_tx++; |
| 2551 | lp->stats.tx_bytes += skb->len; |
| 2552 | |
| 2553 | /* Trigger an immediate send poll. */ |
Don Fry | b368a3f | 2006-09-13 10:16:07 -0700 | [diff] [blame] | 2554 | lp->a.write_csr(ioaddr, CSR0, CSR0_INTEN | CSR0_TXPOLL); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2555 | |
| 2556 | dev->trans_start = jiffies; |
| 2557 | |
| 2558 | if (lp->tx_ring[(entry + 1) & lp->tx_mod_mask].base != 0) { |
| 2559 | lp->tx_full = 1; |
| 2560 | netif_stop_queue(dev); |
| 2561 | } |
| 2562 | spin_unlock_irqrestore(&lp->lock, flags); |
| 2563 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2564 | } |
| 2565 | |
| 2566 | /* The PCNET32 interrupt handler. */ |
| 2567 | static irqreturn_t |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 2568 | pcnet32_interrupt(int irq, void *dev_id) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2569 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2570 | struct net_device *dev = dev_id; |
| 2571 | struct pcnet32_private *lp; |
| 2572 | unsigned long ioaddr; |
Don Fry | 5c99346 | 2006-09-13 10:15:43 -0700 | [diff] [blame] | 2573 | u16 csr0; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2574 | int boguscnt = max_interrupt_work; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2575 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2576 | ioaddr = dev->base_addr; |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 2577 | lp = netdev_priv(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2578 | |
| 2579 | spin_lock(&lp->lock); |
| 2580 | |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 2581 | csr0 = lp->a.read_csr(ioaddr, CSR0); |
| 2582 | while ((csr0 & 0x8f00) && --boguscnt >= 0) { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2583 | if (csr0 == 0xffff) { |
| 2584 | break; /* PCMCIA remove happened */ |
| 2585 | } |
| 2586 | /* Acknowledge all of the current interrupt sources ASAP. */ |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 2587 | lp->a.write_csr(ioaddr, CSR0, csr0 & ~0x004f); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2588 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2589 | if (netif_msg_intr(lp)) |
| 2590 | printk(KERN_DEBUG |
| 2591 | "%s: interrupt csr0=%#2.2x new csr=%#2.2x.\n", |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 2592 | dev->name, csr0, lp->a.read_csr(ioaddr, CSR0)); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2593 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2594 | /* Log misc errors. */ |
| 2595 | if (csr0 & 0x4000) |
| 2596 | lp->stats.tx_errors++; /* Tx babble. */ |
| 2597 | if (csr0 & 0x1000) { |
| 2598 | /* |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 2599 | * This happens when our receive ring is full. This |
| 2600 | * shouldn't be a problem as we will see normal rx |
| 2601 | * interrupts for the frames in the receive ring. But |
| 2602 | * there are some PCI chipsets (I can reproduce this |
| 2603 | * on SP3G with Intel saturn chipset) which have |
| 2604 | * sometimes problems and will fill up the receive |
| 2605 | * ring with error descriptors. In this situation we |
| 2606 | * don't get a rx interrupt, but a missed frame |
Don Fry | 7de745e | 2006-09-13 10:16:53 -0700 | [diff] [blame] | 2607 | * interrupt sooner or later. |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2608 | */ |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2609 | lp->stats.rx_errors++; /* Missed a Rx frame. */ |
| 2610 | } |
| 2611 | if (csr0 & 0x0800) { |
| 2612 | if (netif_msg_drv(lp)) |
| 2613 | printk(KERN_ERR |
| 2614 | "%s: Bus master arbitration failure, status %4.4x.\n", |
| 2615 | dev->name, csr0); |
| 2616 | /* unlike for the lance, there is no restart needed */ |
| 2617 | } |
Don Fry | 7de745e | 2006-09-13 10:16:53 -0700 | [diff] [blame] | 2618 | #ifdef CONFIG_PCNET32_NAPI |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 2619 | if (netif_rx_schedule_prep(dev, &lp->napi)) { |
Don Fry | 7de745e | 2006-09-13 10:16:53 -0700 | [diff] [blame] | 2620 | u16 val; |
| 2621 | /* set interrupt masks */ |
| 2622 | val = lp->a.read_csr(ioaddr, CSR3); |
| 2623 | val |= 0x5f00; |
| 2624 | lp->a.write_csr(ioaddr, CSR3, val); |
| 2625 | mmiowb(); |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 2626 | __netif_rx_schedule(dev, &lp->napi); |
Don Fry | 7de745e | 2006-09-13 10:16:53 -0700 | [diff] [blame] | 2627 | break; |
| 2628 | } |
| 2629 | #else |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 2630 | pcnet32_rx(dev, lp->napi.weight); |
Don Fry | 7de745e | 2006-09-13 10:16:53 -0700 | [diff] [blame] | 2631 | if (pcnet32_tx(dev)) { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2632 | /* reset the chip to clear the error condition, then restart */ |
| 2633 | lp->a.reset(ioaddr); |
Don Fry | 7de745e | 2006-09-13 10:16:53 -0700 | [diff] [blame] | 2634 | lp->a.write_csr(ioaddr, CSR4, 0x0915); /* auto tx pad */ |
Don Fry | b368a3f | 2006-09-13 10:16:07 -0700 | [diff] [blame] | 2635 | pcnet32_restart(dev, CSR0_START); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2636 | netif_wake_queue(dev); |
| 2637 | } |
Don Fry | 7de745e | 2006-09-13 10:16:53 -0700 | [diff] [blame] | 2638 | #endif |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 2639 | csr0 = lp->a.read_csr(ioaddr, CSR0); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2640 | } |
| 2641 | |
Don Fry | 7de745e | 2006-09-13 10:16:53 -0700 | [diff] [blame] | 2642 | #ifndef CONFIG_PCNET32_NAPI |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2643 | /* Set interrupt enable. */ |
Don Fry | b368a3f | 2006-09-13 10:16:07 -0700 | [diff] [blame] | 2644 | lp->a.write_csr(ioaddr, CSR0, CSR0_INTEN); |
Don Fry | 7de745e | 2006-09-13 10:16:53 -0700 | [diff] [blame] | 2645 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2646 | |
| 2647 | if (netif_msg_intr(lp)) |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2648 | printk(KERN_DEBUG "%s: exiting interrupt, csr0=%#4.4x.\n", |
Don Fry | b368a3f | 2006-09-13 10:16:07 -0700 | [diff] [blame] | 2649 | dev->name, lp->a.read_csr(ioaddr, CSR0)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2650 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2651 | spin_unlock(&lp->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2652 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2653 | return IRQ_HANDLED; |
| 2654 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2655 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2656 | static int pcnet32_close(struct net_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2657 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2658 | unsigned long ioaddr = dev->base_addr; |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 2659 | struct pcnet32_private *lp = netdev_priv(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2660 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2661 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2662 | del_timer_sync(&lp->watchdog_timer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2663 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2664 | netif_stop_queue(dev); |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 2665 | #ifdef CONFIG_PCNET32_NAPI |
| 2666 | napi_disable(&lp->napi); |
| 2667 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2668 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2669 | spin_lock_irqsave(&lp->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2670 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2671 | lp->stats.rx_missed_errors = lp->a.read_csr(ioaddr, 112); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2672 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2673 | if (netif_msg_ifdown(lp)) |
| 2674 | printk(KERN_DEBUG |
| 2675 | "%s: Shutting down ethercard, status was %2.2x.\n", |
Don Fry | b368a3f | 2006-09-13 10:16:07 -0700 | [diff] [blame] | 2676 | dev->name, lp->a.read_csr(ioaddr, CSR0)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2677 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2678 | /* We stop the PCNET32 here -- it occasionally polls memory if we don't. */ |
Don Fry | b368a3f | 2006-09-13 10:16:07 -0700 | [diff] [blame] | 2679 | lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2680 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2681 | /* |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2682 | * Switch back to 16bit mode to avoid problems with dumb |
| 2683 | * DOS packet driver after a warm reboot |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2684 | */ |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2685 | lp->a.write_bcr(ioaddr, 20, 4); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2686 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2687 | spin_unlock_irqrestore(&lp->lock, flags); |
| 2688 | |
| 2689 | free_irq(dev->irq, dev); |
| 2690 | |
| 2691 | spin_lock_irqsave(&lp->lock, flags); |
| 2692 | |
Don Fry | ac5bfe4 | 2006-06-29 13:55:27 -0700 | [diff] [blame] | 2693 | pcnet32_purge_rx_ring(dev); |
| 2694 | pcnet32_purge_tx_ring(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2695 | |
| 2696 | spin_unlock_irqrestore(&lp->lock, flags); |
| 2697 | |
| 2698 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2699 | } |
| 2700 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2701 | static struct net_device_stats *pcnet32_get_stats(struct net_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2702 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 2703 | struct pcnet32_private *lp = netdev_priv(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2704 | unsigned long ioaddr = dev->base_addr; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2705 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2706 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2707 | spin_lock_irqsave(&lp->lock, flags); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2708 | lp->stats.rx_missed_errors = lp->a.read_csr(ioaddr, 112); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2709 | spin_unlock_irqrestore(&lp->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2710 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2711 | return &lp->stats; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2712 | } |
| 2713 | |
| 2714 | /* taken from the sunlance driver, which it took from the depca driver */ |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2715 | static void pcnet32_load_multicast(struct net_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2716 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 2717 | struct pcnet32_private *lp = netdev_priv(dev); |
Don Fry | 6ecb766 | 2007-03-06 10:45:23 -0800 | [diff] [blame] | 2718 | volatile struct pcnet32_init_block *ib = lp->init_block; |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 2719 | volatile __le16 *mcast_table = (__le16 *)ib->filter; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2720 | struct dev_mc_list *dmi = dev->mc_list; |
Don Fry | df27f4a | 2006-06-29 13:55:02 -0700 | [diff] [blame] | 2721 | unsigned long ioaddr = dev->base_addr; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2722 | char *addrs; |
| 2723 | int i; |
| 2724 | u32 crc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2725 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2726 | /* set all multicast bits */ |
| 2727 | if (dev->flags & IFF_ALLMULTI) { |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 2728 | ib->filter[0] = cpu_to_le32(~0U); |
| 2729 | ib->filter[1] = cpu_to_le32(~0U); |
Don Fry | df27f4a | 2006-06-29 13:55:02 -0700 | [diff] [blame] | 2730 | lp->a.write_csr(ioaddr, PCNET32_MC_FILTER, 0xffff); |
| 2731 | lp->a.write_csr(ioaddr, PCNET32_MC_FILTER+1, 0xffff); |
| 2732 | lp->a.write_csr(ioaddr, PCNET32_MC_FILTER+2, 0xffff); |
| 2733 | lp->a.write_csr(ioaddr, PCNET32_MC_FILTER+3, 0xffff); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2734 | return; |
| 2735 | } |
| 2736 | /* clear the multicast filter */ |
| 2737 | ib->filter[0] = 0; |
| 2738 | ib->filter[1] = 0; |
| 2739 | |
| 2740 | /* Add addresses */ |
| 2741 | for (i = 0; i < dev->mc_count; i++) { |
| 2742 | addrs = dmi->dmi_addr; |
| 2743 | dmi = dmi->next; |
| 2744 | |
| 2745 | /* multicast address? */ |
| 2746 | if (!(*addrs & 1)) |
| 2747 | continue; |
| 2748 | |
| 2749 | crc = ether_crc_le(6, addrs); |
| 2750 | crc = crc >> 26; |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 2751 | mcast_table[crc >> 4] |= cpu_to_le16(1 << (crc & 0xf)); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2752 | } |
Don Fry | df27f4a | 2006-06-29 13:55:02 -0700 | [diff] [blame] | 2753 | for (i = 0; i < 4; i++) |
| 2754 | lp->a.write_csr(ioaddr, PCNET32_MC_FILTER + i, |
| 2755 | le16_to_cpu(mcast_table[i])); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2756 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2757 | } |
| 2758 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2759 | /* |
| 2760 | * Set or clear the multicast filter for this adaptor. |
| 2761 | */ |
| 2762 | static void pcnet32_set_multicast_list(struct net_device *dev) |
| 2763 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2764 | unsigned long ioaddr = dev->base_addr, flags; |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 2765 | struct pcnet32_private *lp = netdev_priv(dev); |
Don Fry | df27f4a | 2006-06-29 13:55:02 -0700 | [diff] [blame] | 2766 | int csr15, suspended; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2767 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2768 | spin_lock_irqsave(&lp->lock, flags); |
Don Fry | df27f4a | 2006-06-29 13:55:02 -0700 | [diff] [blame] | 2769 | suspended = pcnet32_suspend(dev, &flags, 0); |
| 2770 | csr15 = lp->a.read_csr(ioaddr, CSR15); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2771 | if (dev->flags & IFF_PROMISC) { |
| 2772 | /* Log any net taps. */ |
| 2773 | if (netif_msg_hw(lp)) |
| 2774 | printk(KERN_INFO "%s: Promiscuous mode enabled.\n", |
| 2775 | dev->name); |
Don Fry | 6ecb766 | 2007-03-06 10:45:23 -0800 | [diff] [blame] | 2776 | lp->init_block->mode = |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 2777 | cpu_to_le16(0x8000 | (lp->options & PCNET32_PORT_PORTSEL) << |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2778 | 7); |
Don Fry | df27f4a | 2006-06-29 13:55:02 -0700 | [diff] [blame] | 2779 | lp->a.write_csr(ioaddr, CSR15, csr15 | 0x8000); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2780 | } else { |
Don Fry | 6ecb766 | 2007-03-06 10:45:23 -0800 | [diff] [blame] | 2781 | lp->init_block->mode = |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 2782 | cpu_to_le16((lp->options & PCNET32_PORT_PORTSEL) << 7); |
Don Fry | df27f4a | 2006-06-29 13:55:02 -0700 | [diff] [blame] | 2783 | lp->a.write_csr(ioaddr, CSR15, csr15 & 0x7fff); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2784 | pcnet32_load_multicast(dev); |
| 2785 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2786 | |
Don Fry | df27f4a | 2006-06-29 13:55:02 -0700 | [diff] [blame] | 2787 | if (suspended) { |
| 2788 | int csr5; |
| 2789 | /* clear SUSPEND (SPND) - CSR5 bit 0 */ |
| 2790 | csr5 = lp->a.read_csr(ioaddr, CSR5); |
| 2791 | lp->a.write_csr(ioaddr, CSR5, csr5 & (~CSR5_SUSPEND)); |
Don Fry | b368a3f | 2006-09-13 10:16:07 -0700 | [diff] [blame] | 2792 | } else { |
Don Fry | df27f4a | 2006-06-29 13:55:02 -0700 | [diff] [blame] | 2793 | lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); |
| 2794 | pcnet32_restart(dev, CSR0_NORMAL); |
| 2795 | netif_wake_queue(dev); |
| 2796 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2797 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2798 | spin_unlock_irqrestore(&lp->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2799 | } |
| 2800 | |
| 2801 | /* This routine assumes that the lp->lock is held */ |
| 2802 | static int mdio_read(struct net_device *dev, int phy_id, int reg_num) |
| 2803 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 2804 | struct pcnet32_private *lp = netdev_priv(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2805 | unsigned long ioaddr = dev->base_addr; |
| 2806 | u16 val_out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2807 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2808 | if (!lp->mii) |
| 2809 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2810 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2811 | lp->a.write_bcr(ioaddr, 33, ((phy_id & 0x1f) << 5) | (reg_num & 0x1f)); |
| 2812 | val_out = lp->a.read_bcr(ioaddr, 34); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2813 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2814 | return val_out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2815 | } |
| 2816 | |
| 2817 | /* This routine assumes that the lp->lock is held */ |
| 2818 | static void mdio_write(struct net_device *dev, int phy_id, int reg_num, int val) |
| 2819 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 2820 | struct pcnet32_private *lp = netdev_priv(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2821 | unsigned long ioaddr = dev->base_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2822 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2823 | if (!lp->mii) |
| 2824 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2825 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2826 | lp->a.write_bcr(ioaddr, 33, ((phy_id & 0x1f) << 5) | (reg_num & 0x1f)); |
| 2827 | lp->a.write_bcr(ioaddr, 34, val); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2828 | } |
| 2829 | |
| 2830 | static int pcnet32_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) |
| 2831 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 2832 | struct pcnet32_private *lp = netdev_priv(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2833 | int rc; |
| 2834 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2835 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2836 | /* SIOC[GS]MIIxxx ioctls */ |
| 2837 | if (lp->mii) { |
| 2838 | spin_lock_irqsave(&lp->lock, flags); |
| 2839 | rc = generic_mii_ioctl(&lp->mii_if, if_mii(rq), cmd, NULL); |
| 2840 | spin_unlock_irqrestore(&lp->lock, flags); |
| 2841 | } else { |
| 2842 | rc = -EOPNOTSUPP; |
| 2843 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2844 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2845 | return rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2846 | } |
| 2847 | |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 2848 | static int pcnet32_check_otherphy(struct net_device *dev) |
| 2849 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 2850 | struct pcnet32_private *lp = netdev_priv(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2851 | struct mii_if_info mii = lp->mii_if; |
| 2852 | u16 bmcr; |
| 2853 | int i; |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 2854 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2855 | for (i = 0; i < PCNET32_MAX_PHYS; i++) { |
| 2856 | if (i == lp->mii_if.phy_id) |
| 2857 | continue; /* skip active phy */ |
| 2858 | if (lp->phymask & (1 << i)) { |
| 2859 | mii.phy_id = i; |
| 2860 | if (mii_link_ok(&mii)) { |
| 2861 | /* found PHY with active link */ |
| 2862 | if (netif_msg_link(lp)) |
| 2863 | printk(KERN_INFO |
| 2864 | "%s: Using PHY number %d.\n", |
| 2865 | dev->name, i); |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 2866 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2867 | /* isolate inactive phy */ |
| 2868 | bmcr = |
| 2869 | mdio_read(dev, lp->mii_if.phy_id, MII_BMCR); |
| 2870 | mdio_write(dev, lp->mii_if.phy_id, MII_BMCR, |
| 2871 | bmcr | BMCR_ISOLATE); |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 2872 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2873 | /* de-isolate new phy */ |
| 2874 | bmcr = mdio_read(dev, i, MII_BMCR); |
| 2875 | mdio_write(dev, i, MII_BMCR, |
| 2876 | bmcr & ~BMCR_ISOLATE); |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 2877 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2878 | /* set new phy address */ |
| 2879 | lp->mii_if.phy_id = i; |
| 2880 | return 1; |
| 2881 | } |
| 2882 | } |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 2883 | } |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2884 | return 0; |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 2885 | } |
| 2886 | |
| 2887 | /* |
| 2888 | * Show the status of the media. Similar to mii_check_media however it |
| 2889 | * correctly shows the link speed for all (tested) pcnet32 variants. |
| 2890 | * Devices with no mii just report link state without speed. |
| 2891 | * |
| 2892 | * Caller is assumed to hold and release the lp->lock. |
| 2893 | */ |
| 2894 | |
| 2895 | static void pcnet32_check_media(struct net_device *dev, int verbose) |
| 2896 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 2897 | struct pcnet32_private *lp = netdev_priv(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2898 | int curr_link; |
| 2899 | int prev_link = netif_carrier_ok(dev) ? 1 : 0; |
| 2900 | u32 bcr9; |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 2901 | |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 2902 | if (lp->mii) { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2903 | curr_link = mii_link_ok(&lp->mii_if); |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 2904 | } else { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2905 | ulong ioaddr = dev->base_addr; /* card base I/O address */ |
| 2906 | curr_link = (lp->a.read_bcr(ioaddr, 4) != 0xc0); |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 2907 | } |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2908 | if (!curr_link) { |
| 2909 | if (prev_link || verbose) { |
| 2910 | netif_carrier_off(dev); |
| 2911 | if (netif_msg_link(lp)) |
| 2912 | printk(KERN_INFO "%s: link down\n", dev->name); |
| 2913 | } |
| 2914 | if (lp->phycount > 1) { |
| 2915 | curr_link = pcnet32_check_otherphy(dev); |
| 2916 | prev_link = 0; |
| 2917 | } |
| 2918 | } else if (verbose || !prev_link) { |
| 2919 | netif_carrier_on(dev); |
| 2920 | if (lp->mii) { |
| 2921 | if (netif_msg_link(lp)) { |
| 2922 | struct ethtool_cmd ecmd; |
| 2923 | mii_ethtool_gset(&lp->mii_if, &ecmd); |
| 2924 | printk(KERN_INFO |
| 2925 | "%s: link up, %sMbps, %s-duplex\n", |
| 2926 | dev->name, |
| 2927 | (ecmd.speed == SPEED_100) ? "100" : "10", |
| 2928 | (ecmd.duplex == |
| 2929 | DUPLEX_FULL) ? "full" : "half"); |
| 2930 | } |
| 2931 | bcr9 = lp->a.read_bcr(dev->base_addr, 9); |
| 2932 | if ((bcr9 & (1 << 0)) != lp->mii_if.full_duplex) { |
| 2933 | if (lp->mii_if.full_duplex) |
| 2934 | bcr9 |= (1 << 0); |
| 2935 | else |
| 2936 | bcr9 &= ~(1 << 0); |
| 2937 | lp->a.write_bcr(dev->base_addr, 9, bcr9); |
| 2938 | } |
| 2939 | } else { |
| 2940 | if (netif_msg_link(lp)) |
| 2941 | printk(KERN_INFO "%s: link up\n", dev->name); |
| 2942 | } |
| 2943 | } |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 2944 | } |
| 2945 | |
| 2946 | /* |
| 2947 | * Check for loss of link and link establishment. |
| 2948 | * Can not use mii_check_media because it does nothing if mode is forced. |
| 2949 | */ |
| 2950 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2951 | static void pcnet32_watchdog(struct net_device *dev) |
| 2952 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 2953 | struct pcnet32_private *lp = netdev_priv(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2954 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2955 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2956 | /* Print the link status if it has changed */ |
| 2957 | spin_lock_irqsave(&lp->lock, flags); |
| 2958 | pcnet32_check_media(dev, 0); |
| 2959 | spin_unlock_irqrestore(&lp->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2960 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2961 | mod_timer(&(lp->watchdog_timer), PCNET32_WATCHDOG_TIMEOUT); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2962 | } |
| 2963 | |
Don Fry | 917270c | 2007-08-26 21:22:32 -0700 | [diff] [blame] | 2964 | static int pcnet32_pm_suspend(struct pci_dev *pdev, pm_message_t state) |
| 2965 | { |
| 2966 | struct net_device *dev = pci_get_drvdata(pdev); |
| 2967 | |
| 2968 | if (netif_running(dev)) { |
| 2969 | netif_device_detach(dev); |
| 2970 | pcnet32_close(dev); |
| 2971 | } |
| 2972 | pci_save_state(pdev); |
| 2973 | pci_set_power_state(pdev, pci_choose_state(pdev, state)); |
| 2974 | return 0; |
| 2975 | } |
| 2976 | |
| 2977 | static int pcnet32_pm_resume(struct pci_dev *pdev) |
| 2978 | { |
| 2979 | struct net_device *dev = pci_get_drvdata(pdev); |
| 2980 | |
| 2981 | pci_set_power_state(pdev, PCI_D0); |
| 2982 | pci_restore_state(pdev); |
| 2983 | |
| 2984 | if (netif_running(dev)) { |
| 2985 | pcnet32_open(dev); |
| 2986 | netif_device_attach(dev); |
| 2987 | } |
| 2988 | return 0; |
| 2989 | } |
| 2990 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2991 | static void __devexit pcnet32_remove_one(struct pci_dev *pdev) |
| 2992 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2993 | struct net_device *dev = pci_get_drvdata(pdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2994 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2995 | if (dev) { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 2996 | struct pcnet32_private *lp = netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2997 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2998 | unregister_netdev(dev); |
| 2999 | pcnet32_free_ring(dev); |
| 3000 | release_region(dev->base_addr, PCNET32_TOTAL_SIZE); |
Don Fry | 6ecb766 | 2007-03-06 10:45:23 -0800 | [diff] [blame] | 3001 | pci_free_consistent(lp->pci_dev, sizeof(*lp->init_block), |
| 3002 | lp->init_block, lp->init_dma_addr); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 3003 | free_netdev(dev); |
| 3004 | pci_disable_device(pdev); |
| 3005 | pci_set_drvdata(pdev, NULL); |
| 3006 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3007 | } |
| 3008 | |
| 3009 | static struct pci_driver pcnet32_driver = { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 3010 | .name = DRV_NAME, |
| 3011 | .probe = pcnet32_probe_pci, |
| 3012 | .remove = __devexit_p(pcnet32_remove_one), |
| 3013 | .id_table = pcnet32_pci_tbl, |
Don Fry | 917270c | 2007-08-26 21:22:32 -0700 | [diff] [blame] | 3014 | .suspend = pcnet32_pm_suspend, |
| 3015 | .resume = pcnet32_pm_resume, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3016 | }; |
| 3017 | |
| 3018 | /* An additional parameter that may be passed in... */ |
| 3019 | static int debug = -1; |
| 3020 | static int tx_start_pt = -1; |
| 3021 | static int pcnet32_have_pci; |
| 3022 | |
| 3023 | module_param(debug, int, 0); |
| 3024 | MODULE_PARM_DESC(debug, DRV_NAME " debug level"); |
| 3025 | module_param(max_interrupt_work, int, 0); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 3026 | MODULE_PARM_DESC(max_interrupt_work, |
| 3027 | DRV_NAME " maximum events handled per interrupt"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3028 | module_param(rx_copybreak, int, 0); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 3029 | MODULE_PARM_DESC(rx_copybreak, |
| 3030 | DRV_NAME " copy breakpoint for copy-only-tiny-frames"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3031 | module_param(tx_start_pt, int, 0); |
| 3032 | MODULE_PARM_DESC(tx_start_pt, DRV_NAME " transmit start point (0-3)"); |
| 3033 | module_param(pcnet32vlb, int, 0); |
| 3034 | MODULE_PARM_DESC(pcnet32vlb, DRV_NAME " Vesa local bus (VLB) support (0/1)"); |
| 3035 | module_param_array(options, int, NULL, 0); |
| 3036 | MODULE_PARM_DESC(options, DRV_NAME " initial option setting(s) (0-15)"); |
| 3037 | module_param_array(full_duplex, int, NULL, 0); |
| 3038 | MODULE_PARM_DESC(full_duplex, DRV_NAME " full duplex setting(s) (1)"); |
| 3039 | /* Module Parameter for HomePNA cards added by Patrick Simmons, 2004 */ |
| 3040 | module_param_array(homepna, int, NULL, 0); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 3041 | MODULE_PARM_DESC(homepna, |
| 3042 | DRV_NAME |
| 3043 | " mode for 79C978 cards (1 for HomePNA, 0 for Ethernet, default Ethernet"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3044 | |
| 3045 | MODULE_AUTHOR("Thomas Bogendoerfer"); |
| 3046 | MODULE_DESCRIPTION("Driver for PCnet32 and PCnetPCI based ethercards"); |
| 3047 | MODULE_LICENSE("GPL"); |
| 3048 | |
| 3049 | #define PCNET32_MSG_DEFAULT (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK) |
| 3050 | |
| 3051 | static int __init pcnet32_init_module(void) |
| 3052 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 3053 | printk(KERN_INFO "%s", version); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3054 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 3055 | pcnet32_debug = netif_msg_init(debug, PCNET32_MSG_DEFAULT); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3056 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 3057 | if ((tx_start_pt >= 0) && (tx_start_pt <= 3)) |
| 3058 | tx_start = tx_start_pt; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3059 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 3060 | /* find the PCI devices */ |
Jeff Garzik | 2991762 | 2006-08-19 17:48:59 -0400 | [diff] [blame] | 3061 | if (!pci_register_driver(&pcnet32_driver)) |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 3062 | pcnet32_have_pci = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3063 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 3064 | /* should we find any remaining VLbus devices ? */ |
| 3065 | if (pcnet32vlb) |
Don Fry | dcaf976 | 2006-06-29 13:52:29 -0700 | [diff] [blame] | 3066 | pcnet32_probe_vlbus(pcnet32_portlist); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3067 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 3068 | if (cards_found && (pcnet32_debug & NETIF_MSG_PROBE)) |
| 3069 | printk(KERN_INFO PFX "%d cards_found.\n", cards_found); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3070 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 3071 | return (pcnet32_have_pci + cards_found) ? 0 : -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3072 | } |
| 3073 | |
| 3074 | static void __exit pcnet32_cleanup_module(void) |
| 3075 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 3076 | struct net_device *next_dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3077 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 3078 | while (pcnet32_dev) { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 3079 | struct pcnet32_private *lp = netdev_priv(pcnet32_dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 3080 | next_dev = lp->next; |
| 3081 | unregister_netdev(pcnet32_dev); |
| 3082 | pcnet32_free_ring(pcnet32_dev); |
| 3083 | release_region(pcnet32_dev->base_addr, PCNET32_TOTAL_SIZE); |
Don Fry | 6ecb766 | 2007-03-06 10:45:23 -0800 | [diff] [blame] | 3084 | pci_free_consistent(lp->pci_dev, sizeof(*lp->init_block), |
| 3085 | lp->init_block, lp->init_dma_addr); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 3086 | free_netdev(pcnet32_dev); |
| 3087 | pcnet32_dev = next_dev; |
| 3088 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3089 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 3090 | if (pcnet32_have_pci) |
| 3091 | pci_unregister_driver(&pcnet32_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3092 | } |
| 3093 | |
| 3094 | module_init(pcnet32_init_module); |
| 3095 | module_exit(pcnet32_cleanup_module); |
| 3096 | |
| 3097 | /* |
| 3098 | * Local variables: |
| 3099 | * c-indent-level: 4 |
| 3100 | * tab-width: 8 |
| 3101 | * End: |
| 3102 | */ |