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 | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 25 | #define DRV_VERSION "1.32" |
| 26 | #define DRV_RELDATE "18.Mar.2006" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 27 | #define PFX DRV_NAME ": " |
| 28 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 29 | static const char *const version = |
| 30 | 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] | 31 | |
| 32 | #include <linux/module.h> |
| 33 | #include <linux/kernel.h> |
| 34 | #include <linux/string.h> |
| 35 | #include <linux/errno.h> |
| 36 | #include <linux/ioport.h> |
| 37 | #include <linux/slab.h> |
| 38 | #include <linux/interrupt.h> |
| 39 | #include <linux/pci.h> |
| 40 | #include <linux/delay.h> |
| 41 | #include <linux/init.h> |
| 42 | #include <linux/ethtool.h> |
| 43 | #include <linux/mii.h> |
| 44 | #include <linux/crc32.h> |
| 45 | #include <linux/netdevice.h> |
| 46 | #include <linux/etherdevice.h> |
| 47 | #include <linux/skbuff.h> |
| 48 | #include <linux/spinlock.h> |
| 49 | #include <linux/moduleparam.h> |
| 50 | #include <linux/bitops.h> |
| 51 | |
| 52 | #include <asm/dma.h> |
| 53 | #include <asm/io.h> |
| 54 | #include <asm/uaccess.h> |
| 55 | #include <asm/irq.h> |
| 56 | |
| 57 | /* |
| 58 | * PCI device identifiers for "new style" Linux PCI Device Drivers |
| 59 | */ |
| 60 | static struct pci_device_id pcnet32_pci_tbl[] = { |
Don Fry | f2622a2 | 2006-06-29 13:52:58 -0700 | [diff] [blame] | 61 | { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_LANCE_HOME), }, |
| 62 | { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_LANCE), }, |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 63 | |
| 64 | /* |
| 65 | * Adapters that were sold with IBM's RS/6000 or pSeries hardware have |
| 66 | * the incorrect vendor id. |
| 67 | */ |
Don Fry | f2622a2 | 2006-06-29 13:52:58 -0700 | [diff] [blame] | 68 | { PCI_DEVICE(PCI_VENDOR_ID_TRIDENT, PCI_DEVICE_ID_AMD_LANCE), |
| 69 | .class = (PCI_CLASS_NETWORK_ETHERNET << 8), .class_mask = 0xffff00, }, |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 70 | |
| 71 | { } /* terminate list */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 72 | }; |
| 73 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 74 | MODULE_DEVICE_TABLE(pci, pcnet32_pci_tbl); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 75 | |
| 76 | static int cards_found; |
| 77 | |
| 78 | /* |
| 79 | * VLB I/O addresses |
| 80 | */ |
| 81 | static unsigned int pcnet32_portlist[] __initdata = |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 82 | { 0x300, 0x320, 0x340, 0x360, 0 }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 83 | |
| 84 | static int pcnet32_debug = 0; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 85 | static int tx_start = 1; /* Mapping -- 0:20, 1:64, 2:128, 3:~220 (depends on chip vers) */ |
| 86 | static int pcnet32vlb; /* check for VLB cards ? */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 87 | |
| 88 | static struct net_device *pcnet32_dev; |
| 89 | |
| 90 | static int max_interrupt_work = 2; |
| 91 | static int rx_copybreak = 200; |
| 92 | |
| 93 | #define PCNET32_PORT_AUI 0x00 |
| 94 | #define PCNET32_PORT_10BT 0x01 |
| 95 | #define PCNET32_PORT_GPSI 0x02 |
| 96 | #define PCNET32_PORT_MII 0x03 |
| 97 | |
| 98 | #define PCNET32_PORT_PORTSEL 0x03 |
| 99 | #define PCNET32_PORT_ASEL 0x04 |
| 100 | #define PCNET32_PORT_100 0x40 |
| 101 | #define PCNET32_PORT_FD 0x80 |
| 102 | |
| 103 | #define PCNET32_DMA_MASK 0xffffffff |
| 104 | |
| 105 | #define PCNET32_WATCHDOG_TIMEOUT (jiffies + (2 * HZ)) |
| 106 | #define PCNET32_BLINK_TIMEOUT (jiffies + (HZ/4)) |
| 107 | |
| 108 | /* |
| 109 | * table to translate option values from tulip |
| 110 | * to internal options |
| 111 | */ |
Arjan van de Ven | f71e130 | 2006-03-03 21:33:57 -0500 | [diff] [blame] | 112 | static const unsigned char options_mapping[] = { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 113 | PCNET32_PORT_ASEL, /* 0 Auto-select */ |
| 114 | PCNET32_PORT_AUI, /* 1 BNC/AUI */ |
| 115 | PCNET32_PORT_AUI, /* 2 AUI/BNC */ |
| 116 | PCNET32_PORT_ASEL, /* 3 not supported */ |
| 117 | PCNET32_PORT_10BT | PCNET32_PORT_FD, /* 4 10baseT-FD */ |
| 118 | PCNET32_PORT_ASEL, /* 5 not supported */ |
| 119 | PCNET32_PORT_ASEL, /* 6 not supported */ |
| 120 | PCNET32_PORT_ASEL, /* 7 not supported */ |
| 121 | PCNET32_PORT_ASEL, /* 8 not supported */ |
| 122 | PCNET32_PORT_MII, /* 9 MII 10baseT */ |
| 123 | PCNET32_PORT_MII | PCNET32_PORT_FD, /* 10 MII 10baseT-FD */ |
| 124 | PCNET32_PORT_MII, /* 11 MII (autosel) */ |
| 125 | PCNET32_PORT_10BT, /* 12 10BaseT */ |
| 126 | PCNET32_PORT_MII | PCNET32_PORT_100, /* 13 MII 100BaseTx */ |
| 127 | /* 14 MII 100BaseTx-FD */ |
| 128 | PCNET32_PORT_MII | PCNET32_PORT_100 | PCNET32_PORT_FD, |
| 129 | PCNET32_PORT_ASEL /* 15 not supported */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 130 | }; |
| 131 | |
| 132 | static const char pcnet32_gstrings_test[][ETH_GSTRING_LEN] = { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 133 | "Loopback test (offline)" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 134 | }; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 135 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 136 | #define PCNET32_TEST_LEN (sizeof(pcnet32_gstrings_test) / ETH_GSTRING_LEN) |
| 137 | |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 138 | #define PCNET32_NUM_REGS 136 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 139 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 140 | #define MAX_UNITS 8 /* More are supported, limit only on options */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 141 | static int options[MAX_UNITS]; |
| 142 | static int full_duplex[MAX_UNITS]; |
| 143 | static int homepna[MAX_UNITS]; |
| 144 | |
| 145 | /* |
| 146 | * Theory of Operation |
| 147 | * |
| 148 | * This driver uses the same software structure as the normal lance |
| 149 | * driver. So look for a verbose description in lance.c. The differences |
| 150 | * to the normal lance driver is the use of the 32bit mode of PCnet32 |
| 151 | * and PCnetPCI chips. Because these chips are 32bit chips, there is no |
| 152 | * 16MB limitation and we don't need bounce buffers. |
| 153 | */ |
| 154 | |
| 155 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 156 | * Set the number of Tx and Rx buffers, using Log_2(# buffers). |
| 157 | * Reasonable default values are 4 Tx buffers, and 16 Rx buffers. |
| 158 | * That translates to 2 (4 == 2^^2) and 4 (16 == 2^^4). |
| 159 | */ |
| 160 | #ifndef PCNET32_LOG_TX_BUFFERS |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 161 | #define PCNET32_LOG_TX_BUFFERS 4 |
| 162 | #define PCNET32_LOG_RX_BUFFERS 5 |
| 163 | #define PCNET32_LOG_MAX_TX_BUFFERS 9 /* 2^9 == 512 */ |
| 164 | #define PCNET32_LOG_MAX_RX_BUFFERS 9 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 165 | #endif |
| 166 | |
| 167 | #define TX_RING_SIZE (1 << (PCNET32_LOG_TX_BUFFERS)) |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 168 | #define TX_MAX_RING_SIZE (1 << (PCNET32_LOG_MAX_TX_BUFFERS)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 169 | |
| 170 | #define RX_RING_SIZE (1 << (PCNET32_LOG_RX_BUFFERS)) |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 171 | #define RX_MAX_RING_SIZE (1 << (PCNET32_LOG_MAX_RX_BUFFERS)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 172 | |
| 173 | #define PKT_BUF_SZ 1544 |
| 174 | |
| 175 | /* Offsets from base I/O address. */ |
| 176 | #define PCNET32_WIO_RDP 0x10 |
| 177 | #define PCNET32_WIO_RAP 0x12 |
| 178 | #define PCNET32_WIO_RESET 0x14 |
| 179 | #define PCNET32_WIO_BDP 0x16 |
| 180 | |
| 181 | #define PCNET32_DWIO_RDP 0x10 |
| 182 | #define PCNET32_DWIO_RAP 0x14 |
| 183 | #define PCNET32_DWIO_RESET 0x18 |
| 184 | #define PCNET32_DWIO_BDP 0x1C |
| 185 | |
| 186 | #define PCNET32_TOTAL_SIZE 0x20 |
| 187 | |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 188 | #define CSR0 0 |
| 189 | #define CSR0_INIT 0x1 |
| 190 | #define CSR0_START 0x2 |
| 191 | #define CSR0_STOP 0x4 |
| 192 | #define CSR0_TXPOLL 0x8 |
| 193 | #define CSR0_INTEN 0x40 |
| 194 | #define CSR0_IDON 0x0100 |
| 195 | #define CSR0_NORMAL (CSR0_START | CSR0_INTEN) |
| 196 | #define PCNET32_INIT_LOW 1 |
| 197 | #define PCNET32_INIT_HIGH 2 |
| 198 | #define CSR3 3 |
| 199 | #define CSR4 4 |
| 200 | #define CSR5 5 |
| 201 | #define CSR5_SUSPEND 0x0001 |
| 202 | #define CSR15 15 |
| 203 | #define PCNET32_MC_FILTER 8 |
| 204 | |
Don Fry | 8d91626 | 2006-08-22 10:22:37 -0700 | [diff] [blame] | 205 | #define PCNET32_79C970A 0x2621 |
| 206 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 207 | /* The PCNET32 Rx and Tx ring descriptors. */ |
| 208 | struct pcnet32_rx_head { |
Jeff Garzik | 0b5bf22 | 2006-03-21 16:22:47 -0500 | [diff] [blame] | 209 | u32 base; |
Don Fry | b368a3f | 2006-09-13 10:16:07 -0700 | [diff] [blame] | 210 | s16 buf_length; /* two`s complement of length */ |
Jeff Garzik | 0b5bf22 | 2006-03-21 16:22:47 -0500 | [diff] [blame] | 211 | s16 status; |
| 212 | u32 msg_length; |
| 213 | u32 reserved; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 214 | }; |
| 215 | |
| 216 | struct pcnet32_tx_head { |
Jeff Garzik | 0b5bf22 | 2006-03-21 16:22:47 -0500 | [diff] [blame] | 217 | u32 base; |
Don Fry | b368a3f | 2006-09-13 10:16:07 -0700 | [diff] [blame] | 218 | s16 length; /* two`s complement of length */ |
Jeff Garzik | 0b5bf22 | 2006-03-21 16:22:47 -0500 | [diff] [blame] | 219 | s16 status; |
| 220 | u32 misc; |
| 221 | u32 reserved; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 222 | }; |
| 223 | |
| 224 | /* The PCNET32 32-Bit initialization block, described in databook. */ |
| 225 | struct pcnet32_init_block { |
Jeff Garzik | 0b5bf22 | 2006-03-21 16:22:47 -0500 | [diff] [blame] | 226 | u16 mode; |
| 227 | u16 tlen_rlen; |
| 228 | u8 phys_addr[6]; |
| 229 | u16 reserved; |
| 230 | u32 filter[2]; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 231 | /* Receive and transmit ring base, along with extra bits. */ |
Jeff Garzik | 0b5bf22 | 2006-03-21 16:22:47 -0500 | [diff] [blame] | 232 | u32 rx_ring; |
| 233 | u32 tx_ring; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 234 | }; |
| 235 | |
| 236 | /* PCnet32 access functions */ |
| 237 | struct pcnet32_access { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 238 | u16 (*read_csr) (unsigned long, int); |
| 239 | void (*write_csr) (unsigned long, int, u16); |
| 240 | u16 (*read_bcr) (unsigned long, int); |
| 241 | void (*write_bcr) (unsigned long, int, u16); |
| 242 | u16 (*read_rap) (unsigned long); |
| 243 | void (*write_rap) (unsigned long, u16); |
| 244 | void (*reset) (unsigned long); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 245 | }; |
| 246 | |
| 247 | /* |
Hubert WS Lin | 7620992 | 2005-09-14 11:39:27 -0700 | [diff] [blame] | 248 | * The first field of pcnet32_private is read by the ethernet device |
| 249 | * so the structure should be allocated using pci_alloc_consistent(). |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 250 | */ |
| 251 | struct pcnet32_private { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 252 | struct pcnet32_init_block init_block; |
| 253 | /* 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] | 254 | struct pcnet32_rx_head *rx_ring; |
| 255 | struct pcnet32_tx_head *tx_ring; |
| 256 | dma_addr_t dma_addr;/* DMA address of beginning of this |
| 257 | object, returned by pci_alloc_consistent */ |
| 258 | struct pci_dev *pci_dev; |
| 259 | const char *name; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 260 | /* The saved address of a sent-in-place packet/buffer, for skfree(). */ |
Jeff Garzik | 0b5bf22 | 2006-03-21 16:22:47 -0500 | [diff] [blame] | 261 | struct sk_buff **tx_skbuff; |
| 262 | struct sk_buff **rx_skbuff; |
| 263 | dma_addr_t *tx_dma_addr; |
| 264 | dma_addr_t *rx_dma_addr; |
| 265 | struct pcnet32_access a; |
| 266 | spinlock_t lock; /* Guard lock */ |
| 267 | unsigned int cur_rx, cur_tx; /* The next free ring entry */ |
| 268 | unsigned int rx_ring_size; /* current rx ring size */ |
| 269 | unsigned int tx_ring_size; /* current tx ring size */ |
| 270 | unsigned int rx_mod_mask; /* rx ring modular mask */ |
| 271 | unsigned int tx_mod_mask; /* tx ring modular mask */ |
| 272 | unsigned short rx_len_bits; |
| 273 | unsigned short tx_len_bits; |
| 274 | dma_addr_t rx_ring_dma_addr; |
| 275 | dma_addr_t tx_ring_dma_addr; |
| 276 | unsigned int dirty_rx, /* ring entries to be freed. */ |
| 277 | dirty_tx; |
| 278 | |
| 279 | struct net_device_stats stats; |
| 280 | char tx_full; |
| 281 | char phycount; /* number of phys found */ |
| 282 | int options; |
| 283 | unsigned int shared_irq:1, /* shared irq possible */ |
| 284 | dxsuflo:1, /* disable transmit stop on uflo */ |
| 285 | mii:1; /* mii port available */ |
| 286 | struct net_device *next; |
| 287 | struct mii_if_info mii_if; |
| 288 | struct timer_list watchdog_timer; |
| 289 | struct timer_list blink_timer; |
| 290 | u32 msg_enable; /* debug message level */ |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 291 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 292 | /* each bit indicates an available PHY */ |
Jeff Garzik | 0b5bf22 | 2006-03-21 16:22:47 -0500 | [diff] [blame] | 293 | u32 phymask; |
Don Fry | 8d91626 | 2006-08-22 10:22:37 -0700 | [diff] [blame] | 294 | unsigned short chip_version; /* which variant this is */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 295 | }; |
| 296 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 297 | static int pcnet32_probe_pci(struct pci_dev *, const struct pci_device_id *); |
| 298 | static int pcnet32_probe1(unsigned long, int, struct pci_dev *); |
| 299 | static int pcnet32_open(struct net_device *); |
| 300 | static int pcnet32_init_ring(struct net_device *); |
| 301 | static int pcnet32_start_xmit(struct sk_buff *, struct net_device *); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 302 | static void pcnet32_tx_timeout(struct net_device *dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 303 | static irqreturn_t pcnet32_interrupt(int, void *, struct pt_regs *); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 304 | static int pcnet32_close(struct net_device *); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 305 | static struct net_device_stats *pcnet32_get_stats(struct net_device *); |
| 306 | static void pcnet32_load_multicast(struct net_device *dev); |
| 307 | static void pcnet32_set_multicast_list(struct net_device *); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 308 | static int pcnet32_ioctl(struct net_device *, struct ifreq *, int); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 309 | static void pcnet32_watchdog(struct net_device *); |
| 310 | 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] | 311 | static void mdio_write(struct net_device *dev, int phy_id, int reg_num, |
| 312 | int val); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 313 | static void pcnet32_restart(struct net_device *dev, unsigned int csr0_bits); |
| 314 | static void pcnet32_ethtool_test(struct net_device *dev, |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 315 | struct ethtool_test *eth_test, u64 * data); |
| 316 | static int pcnet32_loopback_test(struct net_device *dev, uint64_t * data1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 317 | static int pcnet32_phys_id(struct net_device *dev, u32 data); |
| 318 | static void pcnet32_led_blink_callback(struct net_device *dev); |
| 319 | static int pcnet32_get_regs_len(struct net_device *dev); |
| 320 | 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] | 321 | void *ptr); |
Don Fry | 1bcd315 | 2005-04-29 14:51:17 -0700 | [diff] [blame] | 322 | static void pcnet32_purge_tx_ring(struct net_device *dev); |
Don Fry | a88c844 | 2005-11-01 12:04:33 -0800 | [diff] [blame] | 323 | static int pcnet32_alloc_ring(struct net_device *dev, char *name); |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 324 | static void pcnet32_free_ring(struct net_device *dev); |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 325 | static void pcnet32_check_media(struct net_device *dev, int verbose); |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 326 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 327 | static u16 pcnet32_wio_read_csr(unsigned long addr, int index) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 328 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 329 | outw(index, addr + PCNET32_WIO_RAP); |
| 330 | return inw(addr + PCNET32_WIO_RDP); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 331 | } |
| 332 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 333 | 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] | 334 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 335 | outw(index, addr + PCNET32_WIO_RAP); |
| 336 | outw(val, 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 u16 pcnet32_wio_read_bcr(unsigned long addr, int index) |
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 | return inw(addr + PCNET32_WIO_BDP); |
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 void pcnet32_wio_write_bcr(unsigned long addr, int index, u16 val) |
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 | outw(val, 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 u16 pcnet32_wio_read_rap(unsigned long addr) |
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 | return inw(addr + PCNET32_WIO_RAP); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 354 | } |
| 355 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 356 | static void pcnet32_wio_write_rap(unsigned long addr, u16 val) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 357 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 358 | outw(val, addr + PCNET32_WIO_RAP); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 359 | } |
| 360 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 361 | static void pcnet32_wio_reset(unsigned long addr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 362 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 363 | inw(addr + PCNET32_WIO_RESET); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 364 | } |
| 365 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 366 | static int pcnet32_wio_check(unsigned long addr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 367 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 368 | outw(88, addr + PCNET32_WIO_RAP); |
| 369 | return (inw(addr + PCNET32_WIO_RAP) == 88); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 370 | } |
| 371 | |
| 372 | static struct pcnet32_access pcnet32_wio = { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 373 | .read_csr = pcnet32_wio_read_csr, |
| 374 | .write_csr = pcnet32_wio_write_csr, |
| 375 | .read_bcr = pcnet32_wio_read_bcr, |
| 376 | .write_bcr = pcnet32_wio_write_bcr, |
| 377 | .read_rap = pcnet32_wio_read_rap, |
| 378 | .write_rap = pcnet32_wio_write_rap, |
| 379 | .reset = pcnet32_wio_reset |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 380 | }; |
| 381 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 382 | static u16 pcnet32_dwio_read_csr(unsigned long addr, int index) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 383 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 384 | outl(index, addr + PCNET32_DWIO_RAP); |
| 385 | return (inl(addr + PCNET32_DWIO_RDP) & 0xffff); |
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 void pcnet32_dwio_write_csr(unsigned long addr, int index, u16 val) |
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 | outl(val, addr + PCNET32_DWIO_RDP); |
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 u16 pcnet32_dwio_read_bcr(unsigned long addr, int index) |
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 | return (inl(addr + PCNET32_DWIO_BDP) & 0xffff); |
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 void pcnet32_dwio_write_bcr(unsigned long addr, int index, u16 val) |
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 | outl(val, addr + PCNET32_DWIO_BDP); |
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 u16 pcnet32_dwio_read_rap(unsigned long addr) |
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 | return (inl(addr + PCNET32_DWIO_RAP) & 0xffff); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 409 | } |
| 410 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 411 | static void pcnet32_dwio_write_rap(unsigned long addr, u16 val) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 412 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 413 | outl(val, addr + PCNET32_DWIO_RAP); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 414 | } |
| 415 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 416 | static void pcnet32_dwio_reset(unsigned long addr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 417 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 418 | inl(addr + PCNET32_DWIO_RESET); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 419 | } |
| 420 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 421 | static int pcnet32_dwio_check(unsigned long addr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 422 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 423 | outl(88, addr + PCNET32_DWIO_RAP); |
| 424 | return ((inl(addr + PCNET32_DWIO_RAP) & 0xffff) == 88); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 425 | } |
| 426 | |
| 427 | static struct pcnet32_access pcnet32_dwio = { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 428 | .read_csr = pcnet32_dwio_read_csr, |
| 429 | .write_csr = pcnet32_dwio_write_csr, |
| 430 | .read_bcr = pcnet32_dwio_read_bcr, |
| 431 | .write_bcr = pcnet32_dwio_write_bcr, |
| 432 | .read_rap = pcnet32_dwio_read_rap, |
| 433 | .write_rap = pcnet32_dwio_write_rap, |
| 434 | .reset = pcnet32_dwio_reset |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 435 | }; |
| 436 | |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 437 | static void pcnet32_netif_stop(struct net_device *dev) |
| 438 | { |
| 439 | dev->trans_start = jiffies; |
| 440 | netif_poll_disable(dev); |
| 441 | netif_tx_disable(dev); |
| 442 | } |
| 443 | |
| 444 | static void pcnet32_netif_start(struct net_device *dev) |
| 445 | { |
| 446 | netif_wake_queue(dev); |
| 447 | netif_poll_enable(dev); |
| 448 | } |
| 449 | |
| 450 | /* |
| 451 | * Allocate space for the new sized tx ring. |
| 452 | * Free old resources |
| 453 | * Save new resources. |
| 454 | * Any failure keeps old resources. |
| 455 | * Must be called with lp->lock held. |
| 456 | */ |
| 457 | static void pcnet32_realloc_tx_ring(struct net_device *dev, |
| 458 | struct pcnet32_private *lp, |
| 459 | unsigned int size) |
| 460 | { |
| 461 | dma_addr_t new_ring_dma_addr; |
| 462 | dma_addr_t *new_dma_addr_list; |
| 463 | struct pcnet32_tx_head *new_tx_ring; |
| 464 | struct sk_buff **new_skb_list; |
| 465 | |
| 466 | pcnet32_purge_tx_ring(dev); |
| 467 | |
| 468 | new_tx_ring = pci_alloc_consistent(lp->pci_dev, |
| 469 | sizeof(struct pcnet32_tx_head) * |
| 470 | (1 << size), |
| 471 | &new_ring_dma_addr); |
| 472 | if (new_tx_ring == NULL) { |
| 473 | if (netif_msg_drv(lp)) |
| 474 | printk("\n" KERN_ERR |
| 475 | "%s: Consistent memory allocation failed.\n", |
| 476 | dev->name); |
| 477 | return; |
| 478 | } |
| 479 | memset(new_tx_ring, 0, sizeof(struct pcnet32_tx_head) * (1 << size)); |
| 480 | |
| 481 | new_dma_addr_list = kcalloc((1 << size), sizeof(dma_addr_t), |
| 482 | GFP_ATOMIC); |
| 483 | if (!new_dma_addr_list) { |
| 484 | if (netif_msg_drv(lp)) |
| 485 | printk("\n" KERN_ERR |
| 486 | "%s: Memory allocation failed.\n", dev->name); |
| 487 | goto free_new_tx_ring; |
| 488 | } |
| 489 | |
| 490 | new_skb_list = kcalloc((1 << size), sizeof(struct sk_buff *), |
| 491 | GFP_ATOMIC); |
| 492 | if (!new_skb_list) { |
| 493 | if (netif_msg_drv(lp)) |
| 494 | printk("\n" KERN_ERR |
| 495 | "%s: Memory allocation failed.\n", dev->name); |
| 496 | goto free_new_lists; |
| 497 | } |
| 498 | |
| 499 | kfree(lp->tx_skbuff); |
| 500 | kfree(lp->tx_dma_addr); |
| 501 | pci_free_consistent(lp->pci_dev, |
| 502 | sizeof(struct pcnet32_tx_head) * |
| 503 | lp->tx_ring_size, lp->tx_ring, |
| 504 | lp->tx_ring_dma_addr); |
| 505 | |
| 506 | lp->tx_ring_size = (1 << size); |
| 507 | lp->tx_mod_mask = lp->tx_ring_size - 1; |
| 508 | lp->tx_len_bits = (size << 12); |
| 509 | lp->tx_ring = new_tx_ring; |
| 510 | lp->tx_ring_dma_addr = new_ring_dma_addr; |
| 511 | lp->tx_dma_addr = new_dma_addr_list; |
| 512 | lp->tx_skbuff = new_skb_list; |
| 513 | return; |
| 514 | |
| 515 | free_new_lists: |
| 516 | kfree(new_dma_addr_list); |
| 517 | free_new_tx_ring: |
| 518 | pci_free_consistent(lp->pci_dev, |
| 519 | sizeof(struct pcnet32_tx_head) * |
| 520 | (1 << size), |
| 521 | new_tx_ring, |
| 522 | new_ring_dma_addr); |
| 523 | return; |
| 524 | } |
| 525 | |
| 526 | /* |
| 527 | * Allocate space for the new sized rx ring. |
| 528 | * Re-use old receive buffers. |
| 529 | * alloc extra buffers |
| 530 | * free unneeded buffers |
| 531 | * free unneeded buffers |
| 532 | * Save new resources. |
| 533 | * Any failure keeps old resources. |
| 534 | * Must be called with lp->lock held. |
| 535 | */ |
| 536 | static void pcnet32_realloc_rx_ring(struct net_device *dev, |
| 537 | struct pcnet32_private *lp, |
| 538 | unsigned int size) |
| 539 | { |
| 540 | dma_addr_t new_ring_dma_addr; |
| 541 | dma_addr_t *new_dma_addr_list; |
| 542 | struct pcnet32_rx_head *new_rx_ring; |
| 543 | struct sk_buff **new_skb_list; |
| 544 | int new, overlap; |
| 545 | |
| 546 | new_rx_ring = pci_alloc_consistent(lp->pci_dev, |
| 547 | sizeof(struct pcnet32_rx_head) * |
| 548 | (1 << size), |
| 549 | &new_ring_dma_addr); |
| 550 | if (new_rx_ring == NULL) { |
| 551 | if (netif_msg_drv(lp)) |
| 552 | printk("\n" KERN_ERR |
| 553 | "%s: Consistent memory allocation failed.\n", |
| 554 | dev->name); |
| 555 | return; |
| 556 | } |
| 557 | memset(new_rx_ring, 0, sizeof(struct pcnet32_rx_head) * (1 << size)); |
| 558 | |
| 559 | new_dma_addr_list = kcalloc((1 << size), sizeof(dma_addr_t), |
| 560 | GFP_ATOMIC); |
| 561 | if (!new_dma_addr_list) { |
| 562 | if (netif_msg_drv(lp)) |
| 563 | printk("\n" KERN_ERR |
| 564 | "%s: Memory allocation failed.\n", dev->name); |
| 565 | goto free_new_rx_ring; |
| 566 | } |
| 567 | |
| 568 | new_skb_list = kcalloc((1 << size), sizeof(struct sk_buff *), |
| 569 | GFP_ATOMIC); |
| 570 | if (!new_skb_list) { |
| 571 | if (netif_msg_drv(lp)) |
| 572 | printk("\n" KERN_ERR |
| 573 | "%s: Memory allocation failed.\n", dev->name); |
| 574 | goto free_new_lists; |
| 575 | } |
| 576 | |
| 577 | /* first copy the current receive buffers */ |
| 578 | overlap = min(size, lp->rx_ring_size); |
| 579 | for (new = 0; new < overlap; new++) { |
| 580 | new_rx_ring[new] = lp->rx_ring[new]; |
| 581 | new_dma_addr_list[new] = lp->rx_dma_addr[new]; |
| 582 | new_skb_list[new] = lp->rx_skbuff[new]; |
| 583 | } |
| 584 | /* now allocate any new buffers needed */ |
| 585 | for (; new < size; new++ ) { |
| 586 | struct sk_buff *rx_skbuff; |
| 587 | new_skb_list[new] = dev_alloc_skb(PKT_BUF_SZ); |
| 588 | if (!(rx_skbuff = new_skb_list[new])) { |
| 589 | /* keep the original lists and buffers */ |
| 590 | if (netif_msg_drv(lp)) |
| 591 | printk(KERN_ERR |
| 592 | "%s: pcnet32_realloc_rx_ring dev_alloc_skb failed.\n", |
| 593 | dev->name); |
| 594 | goto free_all_new; |
| 595 | } |
| 596 | skb_reserve(rx_skbuff, 2); |
| 597 | |
| 598 | new_dma_addr_list[new] = |
| 599 | pci_map_single(lp->pci_dev, rx_skbuff->data, |
| 600 | PKT_BUF_SZ - 2, PCI_DMA_FROMDEVICE); |
| 601 | new_rx_ring[new].base = (u32) le32_to_cpu(new_dma_addr_list[new]); |
| 602 | new_rx_ring[new].buf_length = le16_to_cpu(2 - PKT_BUF_SZ); |
| 603 | new_rx_ring[new].status = le16_to_cpu(0x8000); |
| 604 | } |
| 605 | /* and free any unneeded buffers */ |
| 606 | for (; new < lp->rx_ring_size; new++) { |
| 607 | if (lp->rx_skbuff[new]) { |
| 608 | pci_unmap_single(lp->pci_dev, lp->rx_dma_addr[new], |
| 609 | PKT_BUF_SZ - 2, PCI_DMA_FROMDEVICE); |
| 610 | dev_kfree_skb(lp->rx_skbuff[new]); |
| 611 | } |
| 612 | } |
| 613 | |
| 614 | kfree(lp->rx_skbuff); |
| 615 | kfree(lp->rx_dma_addr); |
| 616 | pci_free_consistent(lp->pci_dev, |
| 617 | sizeof(struct pcnet32_rx_head) * |
| 618 | lp->rx_ring_size, lp->rx_ring, |
| 619 | lp->rx_ring_dma_addr); |
| 620 | |
| 621 | lp->rx_ring_size = (1 << size); |
| 622 | lp->rx_mod_mask = lp->rx_ring_size - 1; |
| 623 | lp->rx_len_bits = (size << 4); |
| 624 | lp->rx_ring = new_rx_ring; |
| 625 | lp->rx_ring_dma_addr = new_ring_dma_addr; |
| 626 | lp->rx_dma_addr = new_dma_addr_list; |
| 627 | lp->rx_skbuff = new_skb_list; |
| 628 | return; |
| 629 | |
| 630 | free_all_new: |
| 631 | for (; --new >= lp->rx_ring_size; ) { |
| 632 | if (new_skb_list[new]) { |
| 633 | pci_unmap_single(lp->pci_dev, new_dma_addr_list[new], |
| 634 | PKT_BUF_SZ - 2, PCI_DMA_FROMDEVICE); |
| 635 | dev_kfree_skb(new_skb_list[new]); |
| 636 | } |
| 637 | } |
| 638 | kfree(new_skb_list); |
| 639 | free_new_lists: |
| 640 | kfree(new_dma_addr_list); |
| 641 | free_new_rx_ring: |
| 642 | pci_free_consistent(lp->pci_dev, |
| 643 | sizeof(struct pcnet32_rx_head) * |
| 644 | (1 << size), |
| 645 | new_rx_ring, |
| 646 | new_ring_dma_addr); |
| 647 | return; |
| 648 | } |
| 649 | |
Don Fry | ac5bfe4 | 2006-06-29 13:55:27 -0700 | [diff] [blame] | 650 | static void pcnet32_purge_rx_ring(struct net_device *dev) |
| 651 | { |
| 652 | struct pcnet32_private *lp = dev->priv; |
| 653 | int i; |
| 654 | |
| 655 | /* free all allocated skbuffs */ |
| 656 | for (i = 0; i < lp->rx_ring_size; i++) { |
| 657 | lp->rx_ring[i].status = 0; /* CPU owns buffer */ |
| 658 | wmb(); /* Make sure adapter sees owner change */ |
| 659 | if (lp->rx_skbuff[i]) { |
| 660 | pci_unmap_single(lp->pci_dev, lp->rx_dma_addr[i], |
| 661 | PKT_BUF_SZ - 2, PCI_DMA_FROMDEVICE); |
| 662 | dev_kfree_skb_any(lp->rx_skbuff[i]); |
| 663 | } |
| 664 | lp->rx_skbuff[i] = NULL; |
| 665 | lp->rx_dma_addr[i] = 0; |
| 666 | } |
| 667 | } |
| 668 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 669 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 670 | static void pcnet32_poll_controller(struct net_device *dev) |
| 671 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 672 | disable_irq(dev->irq); |
| 673 | pcnet32_interrupt(0, dev, NULL); |
| 674 | enable_irq(dev->irq); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 675 | } |
| 676 | #endif |
| 677 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 678 | static int pcnet32_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
| 679 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 680 | struct pcnet32_private *lp = dev->priv; |
| 681 | unsigned long flags; |
| 682 | int r = -EOPNOTSUPP; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 683 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 684 | if (lp->mii) { |
| 685 | spin_lock_irqsave(&lp->lock, flags); |
| 686 | mii_ethtool_gset(&lp->mii_if, cmd); |
| 687 | spin_unlock_irqrestore(&lp->lock, flags); |
| 688 | r = 0; |
| 689 | } |
| 690 | return r; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 691 | } |
| 692 | |
| 693 | static int pcnet32_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
| 694 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 695 | struct pcnet32_private *lp = dev->priv; |
| 696 | unsigned long flags; |
| 697 | int r = -EOPNOTSUPP; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 698 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 699 | if (lp->mii) { |
| 700 | spin_lock_irqsave(&lp->lock, flags); |
| 701 | r = mii_ethtool_sset(&lp->mii_if, cmd); |
| 702 | spin_unlock_irqrestore(&lp->lock, flags); |
| 703 | } |
| 704 | return r; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 705 | } |
| 706 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 707 | static void pcnet32_get_drvinfo(struct net_device *dev, |
| 708 | struct ethtool_drvinfo *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 709 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 710 | struct pcnet32_private *lp = dev->priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 711 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 712 | strcpy(info->driver, DRV_NAME); |
| 713 | strcpy(info->version, DRV_VERSION); |
| 714 | if (lp->pci_dev) |
| 715 | strcpy(info->bus_info, pci_name(lp->pci_dev)); |
| 716 | else |
| 717 | sprintf(info->bus_info, "VLB 0x%lx", dev->base_addr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 718 | } |
| 719 | |
| 720 | static u32 pcnet32_get_link(struct net_device *dev) |
| 721 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 722 | struct pcnet32_private *lp = dev->priv; |
| 723 | unsigned long flags; |
| 724 | int r; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 725 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 726 | spin_lock_irqsave(&lp->lock, flags); |
| 727 | if (lp->mii) { |
| 728 | r = mii_link_ok(&lp->mii_if); |
Don Fry | 8d91626 | 2006-08-22 10:22:37 -0700 | [diff] [blame] | 729 | } else if (lp->chip_version >= PCNET32_79C970A) { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 730 | ulong ioaddr = dev->base_addr; /* card base I/O address */ |
| 731 | r = (lp->a.read_bcr(ioaddr, 4) != 0xc0); |
Don Fry | 8d91626 | 2006-08-22 10:22:37 -0700 | [diff] [blame] | 732 | } else { /* can not detect link on really old chips */ |
| 733 | r = 1; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 734 | } |
| 735 | spin_unlock_irqrestore(&lp->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 736 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 737 | return r; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 738 | } |
| 739 | |
| 740 | static u32 pcnet32_get_msglevel(struct net_device *dev) |
| 741 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 742 | struct pcnet32_private *lp = dev->priv; |
| 743 | return lp->msg_enable; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 744 | } |
| 745 | |
| 746 | static void pcnet32_set_msglevel(struct net_device *dev, u32 value) |
| 747 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 748 | struct pcnet32_private *lp = dev->priv; |
| 749 | lp->msg_enable = value; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 750 | } |
| 751 | |
| 752 | static int pcnet32_nway_reset(struct net_device *dev) |
| 753 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 754 | struct pcnet32_private *lp = dev->priv; |
| 755 | unsigned long flags; |
| 756 | int r = -EOPNOTSUPP; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 757 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 758 | if (lp->mii) { |
| 759 | spin_lock_irqsave(&lp->lock, flags); |
| 760 | r = mii_nway_restart(&lp->mii_if); |
| 761 | spin_unlock_irqrestore(&lp->lock, flags); |
| 762 | } |
| 763 | return r; |
| 764 | } |
| 765 | |
| 766 | static void pcnet32_get_ringparam(struct net_device *dev, |
| 767 | struct ethtool_ringparam *ering) |
| 768 | { |
| 769 | struct pcnet32_private *lp = dev->priv; |
| 770 | |
Don Fry | 6dcd60c | 2006-06-29 13:53:23 -0700 | [diff] [blame] | 771 | ering->tx_max_pending = TX_MAX_RING_SIZE; |
| 772 | ering->tx_pending = lp->tx_ring_size; |
| 773 | ering->rx_max_pending = RX_MAX_RING_SIZE; |
| 774 | ering->rx_pending = lp->rx_ring_size; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 775 | } |
| 776 | |
| 777 | static int pcnet32_set_ringparam(struct net_device *dev, |
| 778 | struct ethtool_ringparam *ering) |
| 779 | { |
| 780 | struct pcnet32_private *lp = dev->priv; |
| 781 | unsigned long flags; |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 782 | unsigned int size; |
| 783 | ulong ioaddr = dev->base_addr; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 784 | int i; |
| 785 | |
| 786 | if (ering->rx_mini_pending || ering->rx_jumbo_pending) |
| 787 | return -EINVAL; |
| 788 | |
| 789 | if (netif_running(dev)) |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 790 | pcnet32_netif_stop(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 791 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 792 | spin_lock_irqsave(&lp->lock, flags); |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 793 | lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); /* stop the chip */ |
| 794 | |
| 795 | size = min(ering->tx_pending, (unsigned int)TX_MAX_RING_SIZE); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 796 | |
| 797 | /* set the minimum ring size to 4, to allow the loopback test to work |
| 798 | * unchanged. |
| 799 | */ |
| 800 | for (i = 2; i <= PCNET32_LOG_MAX_TX_BUFFERS; i++) { |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 801 | if (size <= (1 << i)) |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 802 | break; |
| 803 | } |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 804 | if ((1 << i) != lp->tx_ring_size) |
| 805 | pcnet32_realloc_tx_ring(dev, lp, i); |
Don Fry | b368a3f | 2006-09-13 10:16:07 -0700 | [diff] [blame] | 806 | |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 807 | size = min(ering->rx_pending, (unsigned int)RX_MAX_RING_SIZE); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 808 | for (i = 2; i <= PCNET32_LOG_MAX_RX_BUFFERS; i++) { |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 809 | if (size <= (1 << i)) |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 810 | break; |
| 811 | } |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 812 | if ((1 << i) != lp->rx_ring_size) |
| 813 | pcnet32_realloc_rx_ring(dev, lp, i); |
Don Fry | b368a3f | 2006-09-13 10:16:07 -0700 | [diff] [blame] | 814 | |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 815 | dev->weight = lp->rx_ring_size / 2; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 816 | |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 817 | if (netif_running(dev)) { |
| 818 | pcnet32_netif_start(dev); |
| 819 | pcnet32_restart(dev, CSR0_NORMAL); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 820 | } |
| 821 | |
Don Fry | a88c844 | 2005-11-01 12:04:33 -0800 | [diff] [blame] | 822 | spin_unlock_irqrestore(&lp->lock, flags); |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 823 | |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 824 | if (netif_msg_drv(lp)) |
| 825 | printk(KERN_INFO |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 826 | "%s: Ring Param Settings: RX: %d, TX: %d\n", dev->name, |
| 827 | lp->rx_ring_size, lp->tx_ring_size); |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 828 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 829 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 830 | } |
| 831 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 832 | static void pcnet32_get_strings(struct net_device *dev, u32 stringset, |
| 833 | u8 * data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 834 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 835 | memcpy(data, pcnet32_gstrings_test, sizeof(pcnet32_gstrings_test)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 836 | } |
| 837 | |
| 838 | static int pcnet32_self_test_count(struct net_device *dev) |
| 839 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 840 | return PCNET32_TEST_LEN; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 841 | } |
| 842 | |
| 843 | static void pcnet32_ethtool_test(struct net_device *dev, |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 844 | struct ethtool_test *test, u64 * data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 845 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 846 | struct pcnet32_private *lp = dev->priv; |
| 847 | int rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 848 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 849 | if (test->flags == ETH_TEST_FL_OFFLINE) { |
| 850 | rc = pcnet32_loopback_test(dev, data); |
| 851 | if (rc) { |
| 852 | if (netif_msg_hw(lp)) |
| 853 | printk(KERN_DEBUG "%s: Loopback test failed.\n", |
| 854 | dev->name); |
| 855 | test->flags |= ETH_TEST_FL_FAILED; |
| 856 | } else if (netif_msg_hw(lp)) |
| 857 | printk(KERN_DEBUG "%s: Loopback test passed.\n", |
| 858 | dev->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 859 | } else if (netif_msg_hw(lp)) |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 860 | printk(KERN_DEBUG |
| 861 | "%s: No tests to run (specify 'Offline' on ethtool).", |
| 862 | dev->name); |
| 863 | } /* end pcnet32_ethtool_test */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 864 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 865 | static int pcnet32_loopback_test(struct net_device *dev, uint64_t * data1) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 866 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 867 | struct pcnet32_private *lp = dev->priv; |
| 868 | struct pcnet32_access *a = &lp->a; /* access to registers */ |
| 869 | ulong ioaddr = dev->base_addr; /* card base I/O address */ |
| 870 | struct sk_buff *skb; /* sk buff */ |
| 871 | int x, i; /* counters */ |
| 872 | int numbuffs = 4; /* number of TX/RX buffers and descs */ |
| 873 | u16 status = 0x8300; /* TX ring status */ |
| 874 | u16 teststatus; /* test of ring status */ |
| 875 | int rc; /* return code */ |
| 876 | int size; /* size of packets */ |
| 877 | unsigned char *packet; /* source packet data */ |
| 878 | static const int data_len = 60; /* length of source packets */ |
| 879 | unsigned long flags; |
| 880 | unsigned long ticks; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 881 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 882 | rc = 1; /* default to fail */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 883 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 884 | if (netif_running(dev)) |
| 885 | pcnet32_close(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 886 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 887 | spin_lock_irqsave(&lp->lock, flags); |
Don Fry | ac5bfe4 | 2006-06-29 13:55:27 -0700 | [diff] [blame] | 888 | lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); /* stop the chip */ |
| 889 | |
| 890 | 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] | 891 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 892 | /* Reset the PCNET32 */ |
| 893 | lp->a.reset(ioaddr); |
Don Fry | b368a3f | 2006-09-13 10:16:07 -0700 | [diff] [blame] | 894 | lp->a.write_csr(ioaddr, CSR4, 0x0915); /* auto tx pad */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 895 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 896 | /* switch pcnet32 to 32bit mode */ |
| 897 | lp->a.write_bcr(ioaddr, 20, 2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 898 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 899 | /* purge & init rings but don't actually restart */ |
| 900 | pcnet32_restart(dev, 0x0000); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 901 | |
Don Fry | ac5bfe4 | 2006-06-29 13:55:27 -0700 | [diff] [blame] | 902 | lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); /* Set STOP bit */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 903 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 904 | /* Initialize Transmit buffers. */ |
| 905 | size = data_len + 15; |
| 906 | for (x = 0; x < numbuffs; x++) { |
| 907 | if (!(skb = dev_alloc_skb(size))) { |
| 908 | if (netif_msg_hw(lp)) |
| 909 | printk(KERN_DEBUG |
| 910 | "%s: Cannot allocate skb at line: %d!\n", |
| 911 | dev->name, __LINE__); |
| 912 | goto clean_up; |
| 913 | } else { |
| 914 | packet = skb->data; |
| 915 | skb_put(skb, size); /* create space for data */ |
| 916 | lp->tx_skbuff[x] = skb; |
| 917 | lp->tx_ring[x].length = le16_to_cpu(-skb->len); |
| 918 | lp->tx_ring[x].misc = 0; |
| 919 | |
| 920 | /* put DA and SA into the skb */ |
| 921 | for (i = 0; i < 6; i++) |
| 922 | *packet++ = dev->dev_addr[i]; |
| 923 | for (i = 0; i < 6; i++) |
| 924 | *packet++ = dev->dev_addr[i]; |
| 925 | /* type */ |
| 926 | *packet++ = 0x08; |
| 927 | *packet++ = 0x06; |
| 928 | /* packet number */ |
| 929 | *packet++ = x; |
| 930 | /* fill packet with data */ |
| 931 | for (i = 0; i < data_len; i++) |
| 932 | *packet++ = i; |
| 933 | |
| 934 | lp->tx_dma_addr[x] = |
| 935 | pci_map_single(lp->pci_dev, skb->data, skb->len, |
| 936 | PCI_DMA_TODEVICE); |
| 937 | lp->tx_ring[x].base = |
| 938 | (u32) le32_to_cpu(lp->tx_dma_addr[x]); |
| 939 | wmb(); /* Make sure owner changes after all others are visible */ |
| 940 | lp->tx_ring[x].status = le16_to_cpu(status); |
| 941 | } |
| 942 | } |
| 943 | |
Don Fry | ac5bfe4 | 2006-06-29 13:55:27 -0700 | [diff] [blame] | 944 | x = a->read_bcr(ioaddr, 32); /* set internal loopback in BCR32 */ |
| 945 | a->write_bcr(ioaddr, 32, x | 0x0002); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 946 | |
Don Fry | ac5bfe4 | 2006-06-29 13:55:27 -0700 | [diff] [blame] | 947 | /* set int loopback in CSR15 */ |
| 948 | x = a->read_csr(ioaddr, CSR15) & 0xfffc; |
| 949 | lp->a.write_csr(ioaddr, CSR15, x | 0x0044); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 950 | |
| 951 | teststatus = le16_to_cpu(0x8000); |
Don Fry | ac5bfe4 | 2006-06-29 13:55:27 -0700 | [diff] [blame] | 952 | lp->a.write_csr(ioaddr, CSR0, CSR0_START); /* Set STRT bit */ |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 953 | |
| 954 | /* Check status of descriptors */ |
| 955 | for (x = 0; x < numbuffs; x++) { |
| 956 | ticks = 0; |
| 957 | rmb(); |
| 958 | while ((lp->rx_ring[x].status & teststatus) && (ticks < 200)) { |
| 959 | spin_unlock_irqrestore(&lp->lock, flags); |
Don Fry | ac5bfe4 | 2006-06-29 13:55:27 -0700 | [diff] [blame] | 960 | msleep(1); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 961 | spin_lock_irqsave(&lp->lock, flags); |
| 962 | rmb(); |
| 963 | ticks++; |
| 964 | } |
| 965 | if (ticks == 200) { |
| 966 | if (netif_msg_hw(lp)) |
| 967 | printk("%s: Desc %d failed to reset!\n", |
| 968 | dev->name, x); |
| 969 | break; |
| 970 | } |
| 971 | } |
| 972 | |
Don Fry | ac5bfe4 | 2006-06-29 13:55:27 -0700 | [diff] [blame] | 973 | lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); /* Set STOP bit */ |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 974 | wmb(); |
| 975 | if (netif_msg_hw(lp) && netif_msg_pktdata(lp)) { |
| 976 | printk(KERN_DEBUG "%s: RX loopback packets:\n", dev->name); |
| 977 | |
| 978 | for (x = 0; x < numbuffs; x++) { |
| 979 | printk(KERN_DEBUG "%s: Packet %d:\n", dev->name, x); |
| 980 | skb = lp->rx_skbuff[x]; |
| 981 | for (i = 0; i < size; i++) { |
| 982 | printk("%02x ", *(skb->data + i)); |
| 983 | } |
| 984 | printk("\n"); |
| 985 | } |
| 986 | } |
| 987 | |
| 988 | x = 0; |
| 989 | rc = 0; |
| 990 | while (x < numbuffs && !rc) { |
| 991 | skb = lp->rx_skbuff[x]; |
| 992 | packet = lp->tx_skbuff[x]->data; |
| 993 | for (i = 0; i < size; i++) { |
| 994 | if (*(skb->data + i) != packet[i]) { |
| 995 | if (netif_msg_hw(lp)) |
| 996 | printk(KERN_DEBUG |
| 997 | "%s: Error in compare! %2x - %02x %02x\n", |
| 998 | dev->name, i, *(skb->data + i), |
| 999 | packet[i]); |
| 1000 | rc = 1; |
| 1001 | break; |
| 1002 | } |
| 1003 | } |
| 1004 | x++; |
| 1005 | } |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1006 | |
| 1007 | clean_up: |
Don Fry | ac5bfe4 | 2006-06-29 13:55:27 -0700 | [diff] [blame] | 1008 | *data1 = rc; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1009 | pcnet32_purge_tx_ring(dev); |
Don Fry | ac5bfe4 | 2006-06-29 13:55:27 -0700 | [diff] [blame] | 1010 | |
| 1011 | x = a->read_csr(ioaddr, CSR15); |
| 1012 | a->write_csr(ioaddr, CSR15, (x & ~0x0044)); /* reset bits 6 and 2 */ |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1013 | |
| 1014 | x = a->read_bcr(ioaddr, 32); /* reset internal loopback */ |
Don Fry | ac5bfe4 | 2006-06-29 13:55:27 -0700 | [diff] [blame] | 1015 | a->write_bcr(ioaddr, 32, (x & ~0x0002)); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1016 | |
| 1017 | if (netif_running(dev)) { |
Don Fry | ac5bfe4 | 2006-06-29 13:55:27 -0700 | [diff] [blame] | 1018 | spin_unlock_irqrestore(&lp->lock, flags); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1019 | pcnet32_open(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1020 | } else { |
Don Fry | ac5bfe4 | 2006-06-29 13:55:27 -0700 | [diff] [blame] | 1021 | pcnet32_purge_rx_ring(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1022 | lp->a.write_bcr(ioaddr, 20, 4); /* return to 16bit mode */ |
Don Fry | ac5bfe4 | 2006-06-29 13:55:27 -0700 | [diff] [blame] | 1023 | spin_unlock_irqrestore(&lp->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1024 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1025 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1026 | return (rc); |
| 1027 | } /* end pcnet32_loopback_test */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1028 | |
| 1029 | static void pcnet32_led_blink_callback(struct net_device *dev) |
| 1030 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1031 | struct pcnet32_private *lp = dev->priv; |
| 1032 | struct pcnet32_access *a = &lp->a; |
| 1033 | ulong ioaddr = dev->base_addr; |
| 1034 | unsigned long flags; |
| 1035 | int i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1036 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1037 | spin_lock_irqsave(&lp->lock, flags); |
| 1038 | for (i = 4; i < 8; i++) { |
| 1039 | a->write_bcr(ioaddr, i, a->read_bcr(ioaddr, i) ^ 0x4000); |
| 1040 | } |
| 1041 | spin_unlock_irqrestore(&lp->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1042 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1043 | mod_timer(&lp->blink_timer, PCNET32_BLINK_TIMEOUT); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1044 | } |
| 1045 | |
| 1046 | static int pcnet32_phys_id(struct net_device *dev, u32 data) |
| 1047 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1048 | struct pcnet32_private *lp = dev->priv; |
| 1049 | struct pcnet32_access *a = &lp->a; |
| 1050 | ulong ioaddr = dev->base_addr; |
| 1051 | unsigned long flags; |
| 1052 | int i, regs[4]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1053 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1054 | if (!lp->blink_timer.function) { |
| 1055 | init_timer(&lp->blink_timer); |
| 1056 | lp->blink_timer.function = (void *)pcnet32_led_blink_callback; |
| 1057 | lp->blink_timer.data = (unsigned long)dev; |
| 1058 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1059 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1060 | /* Save the current value of the bcrs */ |
| 1061 | spin_lock_irqsave(&lp->lock, flags); |
| 1062 | for (i = 4; i < 8; i++) { |
| 1063 | regs[i - 4] = a->read_bcr(ioaddr, i); |
| 1064 | } |
| 1065 | spin_unlock_irqrestore(&lp->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1066 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1067 | mod_timer(&lp->blink_timer, jiffies); |
| 1068 | set_current_state(TASK_INTERRUPTIBLE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1069 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1070 | if ((!data) || (data > (u32) (MAX_SCHEDULE_TIMEOUT / HZ))) |
| 1071 | data = (u32) (MAX_SCHEDULE_TIMEOUT / HZ); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1072 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1073 | msleep_interruptible(data * 1000); |
| 1074 | del_timer_sync(&lp->blink_timer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1075 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1076 | /* Restore the original value of the bcrs */ |
| 1077 | spin_lock_irqsave(&lp->lock, flags); |
| 1078 | for (i = 4; i < 8; i++) { |
| 1079 | a->write_bcr(ioaddr, i, regs[i - 4]); |
| 1080 | } |
| 1081 | spin_unlock_irqrestore(&lp->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1082 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1083 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1084 | } |
| 1085 | |
Don Fry | df27f4a | 2006-06-29 13:55:02 -0700 | [diff] [blame] | 1086 | /* |
| 1087 | * lp->lock must be held. |
| 1088 | */ |
| 1089 | static int pcnet32_suspend(struct net_device *dev, unsigned long *flags, |
| 1090 | int can_sleep) |
| 1091 | { |
| 1092 | int csr5; |
| 1093 | struct pcnet32_private *lp = dev->priv; |
| 1094 | struct pcnet32_access *a = &lp->a; |
| 1095 | ulong ioaddr = dev->base_addr; |
| 1096 | int ticks; |
| 1097 | |
Don Fry | 8d91626 | 2006-08-22 10:22:37 -0700 | [diff] [blame] | 1098 | /* really old chips have to be stopped. */ |
| 1099 | if (lp->chip_version < PCNET32_79C970A) |
| 1100 | return 0; |
| 1101 | |
Don Fry | df27f4a | 2006-06-29 13:55:02 -0700 | [diff] [blame] | 1102 | /* set SUSPEND (SPND) - CSR5 bit 0 */ |
| 1103 | csr5 = a->read_csr(ioaddr, CSR5); |
| 1104 | a->write_csr(ioaddr, CSR5, csr5 | CSR5_SUSPEND); |
| 1105 | |
| 1106 | /* poll waiting for bit to be set */ |
| 1107 | ticks = 0; |
| 1108 | while (!(a->read_csr(ioaddr, CSR5) & CSR5_SUSPEND)) { |
| 1109 | spin_unlock_irqrestore(&lp->lock, *flags); |
| 1110 | if (can_sleep) |
| 1111 | msleep(1); |
| 1112 | else |
| 1113 | mdelay(1); |
| 1114 | spin_lock_irqsave(&lp->lock, *flags); |
| 1115 | ticks++; |
| 1116 | if (ticks > 200) { |
| 1117 | if (netif_msg_hw(lp)) |
| 1118 | printk(KERN_DEBUG |
| 1119 | "%s: Error getting into suspend!\n", |
| 1120 | dev->name); |
| 1121 | return 0; |
| 1122 | } |
| 1123 | } |
| 1124 | return 1; |
| 1125 | } |
| 1126 | |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame^] | 1127 | /* |
| 1128 | * process one receive descriptor entry |
| 1129 | */ |
Don Fry | 9691edd | 2006-09-13 10:16:21 -0700 | [diff] [blame] | 1130 | |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame^] | 1131 | static void pcnet32_rx_entry(struct net_device *dev, |
| 1132 | struct pcnet32_private *lp, |
| 1133 | struct pcnet32_rx_head *rxp, |
| 1134 | int entry) |
| 1135 | { |
| 1136 | int status = (short)le16_to_cpu(rxp->status) >> 8; |
| 1137 | int rx_in_place = 0; |
| 1138 | struct sk_buff *skb; |
| 1139 | short pkt_len; |
| 1140 | |
| 1141 | if (status != 0x03) { /* There was an error. */ |
| 1142 | /* |
| 1143 | * There is a tricky error noted by John Murphy, |
| 1144 | * <murf@perftech.com> to Russ Nelson: Even with full-sized |
| 1145 | * buffers it's possible for a jabber packet to use two |
| 1146 | * buffers, with only the last correctly noting the error. |
| 1147 | */ |
| 1148 | if (status & 0x01) /* Only count a general error at the */ |
| 1149 | lp->stats.rx_errors++; /* end of a packet. */ |
| 1150 | if (status & 0x20) |
| 1151 | lp->stats.rx_frame_errors++; |
| 1152 | if (status & 0x10) |
| 1153 | lp->stats.rx_over_errors++; |
| 1154 | if (status & 0x08) |
| 1155 | lp->stats.rx_crc_errors++; |
| 1156 | if (status & 0x04) |
| 1157 | lp->stats.rx_fifo_errors++; |
| 1158 | return; |
| 1159 | } |
| 1160 | |
| 1161 | pkt_len = (le32_to_cpu(rxp->msg_length) & 0xfff) - 4; |
| 1162 | |
| 1163 | /* Discard oversize frames. */ |
| 1164 | if (unlikely(pkt_len > PKT_BUF_SZ - 2)) { |
| 1165 | if (netif_msg_drv(lp)) |
| 1166 | printk(KERN_ERR "%s: Impossible packet size %d!\n", |
| 1167 | dev->name, pkt_len); |
| 1168 | lp->stats.rx_errors++; |
| 1169 | return; |
| 1170 | } |
| 1171 | if (pkt_len < 60) { |
| 1172 | if (netif_msg_rx_err(lp)) |
| 1173 | printk(KERN_ERR "%s: Runt packet!\n", dev->name); |
| 1174 | lp->stats.rx_errors++; |
| 1175 | return; |
| 1176 | } |
| 1177 | |
| 1178 | if (pkt_len > rx_copybreak) { |
| 1179 | struct sk_buff *newskb; |
| 1180 | |
| 1181 | if ((newskb = dev_alloc_skb(PKT_BUF_SZ))) { |
| 1182 | skb_reserve(newskb, 2); |
| 1183 | skb = lp->rx_skbuff[entry]; |
| 1184 | pci_unmap_single(lp->pci_dev, |
| 1185 | lp->rx_dma_addr[entry], |
| 1186 | PKT_BUF_SZ - 2, |
| 1187 | PCI_DMA_FROMDEVICE); |
| 1188 | skb_put(skb, pkt_len); |
| 1189 | lp->rx_skbuff[entry] = newskb; |
| 1190 | newskb->dev = dev; |
| 1191 | lp->rx_dma_addr[entry] = |
| 1192 | pci_map_single(lp->pci_dev, |
| 1193 | newskb->data, |
| 1194 | PKT_BUF_SZ - 2, |
| 1195 | PCI_DMA_FROMDEVICE); |
| 1196 | rxp->base = le32_to_cpu(lp->rx_dma_addr[entry]); |
| 1197 | rx_in_place = 1; |
| 1198 | } else |
| 1199 | skb = NULL; |
| 1200 | } else { |
| 1201 | skb = dev_alloc_skb(pkt_len + 2); |
| 1202 | } |
| 1203 | |
| 1204 | if (skb == NULL) { |
| 1205 | if (netif_msg_drv(lp)) |
| 1206 | printk(KERN_ERR |
| 1207 | "%s: Memory squeeze, dropping packet.\n", |
| 1208 | dev->name); |
| 1209 | lp->stats.rx_dropped++; |
| 1210 | return; |
| 1211 | } |
| 1212 | skb->dev = dev; |
| 1213 | if (!rx_in_place) { |
| 1214 | skb_reserve(skb, 2); /* 16 byte align */ |
| 1215 | skb_put(skb, pkt_len); /* Make room */ |
| 1216 | pci_dma_sync_single_for_cpu(lp->pci_dev, |
| 1217 | lp->rx_dma_addr[entry], |
| 1218 | PKT_BUF_SZ - 2, |
| 1219 | PCI_DMA_FROMDEVICE); |
| 1220 | eth_copy_and_sum(skb, |
| 1221 | (unsigned char *)(lp->rx_skbuff[entry]->data), |
| 1222 | pkt_len, 0); |
| 1223 | pci_dma_sync_single_for_device(lp->pci_dev, |
| 1224 | lp->rx_dma_addr[entry], |
| 1225 | PKT_BUF_SZ - 2, |
| 1226 | PCI_DMA_FROMDEVICE); |
| 1227 | } |
| 1228 | lp->stats.rx_bytes += skb->len; |
| 1229 | skb->protocol = eth_type_trans(skb, dev); |
| 1230 | netif_rx(skb); |
| 1231 | dev->last_rx = jiffies; |
| 1232 | lp->stats.rx_packets++; |
| 1233 | return; |
| 1234 | } |
| 1235 | |
| 1236 | |
| 1237 | static void pcnet32_rx(struct net_device *dev) |
Don Fry | 9691edd | 2006-09-13 10:16:21 -0700 | [diff] [blame] | 1238 | { |
| 1239 | struct pcnet32_private *lp = dev->priv; |
| 1240 | int entry = lp->cur_rx & lp->rx_mod_mask; |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame^] | 1241 | struct pcnet32_rx_head *rxp = &lp->rx_ring[entry]; |
| 1242 | int npackets = 0; |
Don Fry | 9691edd | 2006-09-13 10:16:21 -0700 | [diff] [blame] | 1243 | int boguscnt = lp->rx_ring_size / 2; |
| 1244 | |
| 1245 | /* If we own the next entry, it's a new packet. Send it up. */ |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame^] | 1246 | while (boguscnt > npackets && (short)le16_to_cpu(rxp->status) >= 0) { |
| 1247 | pcnet32_rx_entry(dev, lp, rxp, entry); |
| 1248 | npackets += 1; |
Don Fry | 9691edd | 2006-09-13 10:16:21 -0700 | [diff] [blame] | 1249 | /* |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame^] | 1250 | * The docs say that the buffer length isn't touched, but Andrew |
| 1251 | * Boyd of QNX reports that some revs of the 79C965 clear it. |
Don Fry | 9691edd | 2006-09-13 10:16:21 -0700 | [diff] [blame] | 1252 | */ |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame^] | 1253 | rxp->buf_length = le16_to_cpu(2 - PKT_BUF_SZ); |
| 1254 | wmb(); /* Make sure owner changes after others are visible */ |
| 1255 | rxp->status = le16_to_cpu(0x8000); |
Don Fry | 9691edd | 2006-09-13 10:16:21 -0700 | [diff] [blame] | 1256 | entry = (++lp->cur_rx) & lp->rx_mod_mask; |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame^] | 1257 | rxp = &lp->rx_ring[entry]; |
Don Fry | 9691edd | 2006-09-13 10:16:21 -0700 | [diff] [blame] | 1258 | } |
| 1259 | |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame^] | 1260 | return; |
Don Fry | 9691edd | 2006-09-13 10:16:21 -0700 | [diff] [blame] | 1261 | } |
| 1262 | |
| 1263 | static int pcnet32_tx(struct net_device *dev, u16 csr0) |
| 1264 | { |
| 1265 | struct pcnet32_private *lp = dev->priv; |
| 1266 | unsigned int dirty_tx = lp->dirty_tx; |
| 1267 | int delta; |
| 1268 | int must_restart = 0; |
| 1269 | |
| 1270 | while (dirty_tx != lp->cur_tx) { |
| 1271 | int entry = dirty_tx & lp->tx_mod_mask; |
| 1272 | int status = (short)le16_to_cpu(lp->tx_ring[entry].status); |
| 1273 | |
| 1274 | if (status < 0) |
| 1275 | break; /* It still hasn't been Txed */ |
| 1276 | |
| 1277 | lp->tx_ring[entry].base = 0; |
| 1278 | |
| 1279 | if (status & 0x4000) { |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame^] | 1280 | /* There was a major error, log it. */ |
Don Fry | 9691edd | 2006-09-13 10:16:21 -0700 | [diff] [blame] | 1281 | int err_status = le32_to_cpu(lp->tx_ring[entry].misc); |
| 1282 | lp->stats.tx_errors++; |
| 1283 | if (netif_msg_tx_err(lp)) |
| 1284 | printk(KERN_ERR |
| 1285 | "%s: Tx error status=%04x err_status=%08x\n", |
| 1286 | dev->name, status, |
| 1287 | err_status); |
| 1288 | if (err_status & 0x04000000) |
| 1289 | lp->stats.tx_aborted_errors++; |
| 1290 | if (err_status & 0x08000000) |
| 1291 | lp->stats.tx_carrier_errors++; |
| 1292 | if (err_status & 0x10000000) |
| 1293 | lp->stats.tx_window_errors++; |
| 1294 | #ifndef DO_DXSUFLO |
| 1295 | if (err_status & 0x40000000) { |
| 1296 | lp->stats.tx_fifo_errors++; |
| 1297 | /* Ackk! On FIFO errors the Tx unit is turned off! */ |
| 1298 | /* Remove this verbosity later! */ |
| 1299 | if (netif_msg_tx_err(lp)) |
| 1300 | printk(KERN_ERR |
| 1301 | "%s: Tx FIFO error! CSR0=%4.4x\n", |
| 1302 | dev->name, csr0); |
| 1303 | must_restart = 1; |
| 1304 | } |
| 1305 | #else |
| 1306 | if (err_status & 0x40000000) { |
| 1307 | lp->stats.tx_fifo_errors++; |
| 1308 | if (!lp->dxsuflo) { /* If controller doesn't recover ... */ |
| 1309 | /* Ackk! On FIFO errors the Tx unit is turned off! */ |
| 1310 | /* Remove this verbosity later! */ |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame^] | 1311 | if (netif_msg_tx_err(lp)) |
Don Fry | 9691edd | 2006-09-13 10:16:21 -0700 | [diff] [blame] | 1312 | printk(KERN_ERR |
| 1313 | "%s: Tx FIFO error! CSR0=%4.4x\n", |
| 1314 | dev->name, csr0); |
| 1315 | must_restart = 1; |
| 1316 | } |
| 1317 | } |
| 1318 | #endif |
| 1319 | } else { |
| 1320 | if (status & 0x1800) |
| 1321 | lp->stats.collisions++; |
| 1322 | lp->stats.tx_packets++; |
| 1323 | } |
| 1324 | |
| 1325 | /* We must free the original skb */ |
| 1326 | if (lp->tx_skbuff[entry]) { |
| 1327 | pci_unmap_single(lp->pci_dev, |
| 1328 | lp->tx_dma_addr[entry], |
| 1329 | lp->tx_skbuff[entry]-> |
| 1330 | len, PCI_DMA_TODEVICE); |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame^] | 1331 | dev_kfree_skb_any(lp->tx_skbuff[entry]); |
Don Fry | 9691edd | 2006-09-13 10:16:21 -0700 | [diff] [blame] | 1332 | lp->tx_skbuff[entry] = NULL; |
| 1333 | lp->tx_dma_addr[entry] = 0; |
| 1334 | } |
| 1335 | dirty_tx++; |
| 1336 | } |
| 1337 | |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame^] | 1338 | 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] | 1339 | if (delta > lp->tx_ring_size) { |
| 1340 | if (netif_msg_drv(lp)) |
| 1341 | printk(KERN_ERR |
| 1342 | "%s: out-of-sync dirty pointer, %d vs. %d, full=%d.\n", |
| 1343 | dev->name, dirty_tx, lp->cur_tx, |
| 1344 | lp->tx_full); |
| 1345 | dirty_tx += lp->tx_ring_size; |
| 1346 | delta -= lp->tx_ring_size; |
| 1347 | } |
| 1348 | |
| 1349 | if (lp->tx_full && |
| 1350 | netif_queue_stopped(dev) && |
| 1351 | delta < lp->tx_ring_size - 2) { |
| 1352 | /* The ring is no longer full, clear tbusy. */ |
| 1353 | lp->tx_full = 0; |
| 1354 | netif_wake_queue(dev); |
| 1355 | } |
| 1356 | lp->dirty_tx = dirty_tx; |
| 1357 | |
| 1358 | return must_restart; |
| 1359 | } |
| 1360 | |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 1361 | #define PCNET32_REGS_PER_PHY 32 |
| 1362 | #define PCNET32_MAX_PHYS 32 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1363 | static int pcnet32_get_regs_len(struct net_device *dev) |
| 1364 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1365 | struct pcnet32_private *lp = dev->priv; |
| 1366 | int j = lp->phycount * PCNET32_REGS_PER_PHY; |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 1367 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1368 | return ((PCNET32_NUM_REGS + j) * sizeof(u16)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1369 | } |
| 1370 | |
| 1371 | 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] | 1372 | void *ptr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1373 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1374 | int i, csr0; |
| 1375 | u16 *buff = ptr; |
| 1376 | struct pcnet32_private *lp = dev->priv; |
| 1377 | struct pcnet32_access *a = &lp->a; |
| 1378 | ulong ioaddr = dev->base_addr; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1379 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1380 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1381 | spin_lock_irqsave(&lp->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1382 | |
Don Fry | df27f4a | 2006-06-29 13:55:02 -0700 | [diff] [blame] | 1383 | csr0 = a->read_csr(ioaddr, CSR0); |
| 1384 | if (!(csr0 & CSR0_STOP)) /* If not stopped */ |
| 1385 | pcnet32_suspend(dev, &flags, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1386 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1387 | /* read address PROM */ |
| 1388 | for (i = 0; i < 16; i += 2) |
| 1389 | *buff++ = inw(ioaddr + i); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1390 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1391 | /* read control and status registers */ |
| 1392 | for (i = 0; i < 90; i++) { |
| 1393 | *buff++ = a->read_csr(ioaddr, i); |
| 1394 | } |
| 1395 | |
| 1396 | *buff++ = a->read_csr(ioaddr, 112); |
| 1397 | *buff++ = a->read_csr(ioaddr, 114); |
| 1398 | |
| 1399 | /* read bus configuration registers */ |
| 1400 | for (i = 0; i < 30; i++) { |
| 1401 | *buff++ = a->read_bcr(ioaddr, i); |
| 1402 | } |
| 1403 | *buff++ = 0; /* skip bcr30 so as not to hang 79C976 */ |
| 1404 | for (i = 31; i < 36; i++) { |
| 1405 | *buff++ = a->read_bcr(ioaddr, i); |
| 1406 | } |
| 1407 | |
| 1408 | /* read mii phy registers */ |
| 1409 | if (lp->mii) { |
| 1410 | int j; |
| 1411 | for (j = 0; j < PCNET32_MAX_PHYS; j++) { |
| 1412 | if (lp->phymask & (1 << j)) { |
| 1413 | for (i = 0; i < PCNET32_REGS_PER_PHY; i++) { |
| 1414 | lp->a.write_bcr(ioaddr, 33, |
| 1415 | (j << 5) | i); |
| 1416 | *buff++ = lp->a.read_bcr(ioaddr, 34); |
| 1417 | } |
| 1418 | } |
| 1419 | } |
| 1420 | } |
| 1421 | |
Don Fry | df27f4a | 2006-06-29 13:55:02 -0700 | [diff] [blame] | 1422 | if (!(csr0 & CSR0_STOP)) { /* If not stopped */ |
| 1423 | int csr5; |
| 1424 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1425 | /* clear SUSPEND (SPND) - CSR5 bit 0 */ |
Don Fry | df27f4a | 2006-06-29 13:55:02 -0700 | [diff] [blame] | 1426 | csr5 = a->read_csr(ioaddr, CSR5); |
| 1427 | a->write_csr(ioaddr, CSR5, csr5 & (~CSR5_SUSPEND)); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1428 | } |
| 1429 | |
| 1430 | spin_unlock_irqrestore(&lp->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1431 | } |
| 1432 | |
| 1433 | static struct ethtool_ops pcnet32_ethtool_ops = { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1434 | .get_settings = pcnet32_get_settings, |
| 1435 | .set_settings = pcnet32_set_settings, |
| 1436 | .get_drvinfo = pcnet32_get_drvinfo, |
| 1437 | .get_msglevel = pcnet32_get_msglevel, |
| 1438 | .set_msglevel = pcnet32_set_msglevel, |
| 1439 | .nway_reset = pcnet32_nway_reset, |
| 1440 | .get_link = pcnet32_get_link, |
| 1441 | .get_ringparam = pcnet32_get_ringparam, |
| 1442 | .set_ringparam = pcnet32_set_ringparam, |
| 1443 | .get_tx_csum = ethtool_op_get_tx_csum, |
| 1444 | .get_sg = ethtool_op_get_sg, |
| 1445 | .get_tso = ethtool_op_get_tso, |
| 1446 | .get_strings = pcnet32_get_strings, |
| 1447 | .self_test_count = pcnet32_self_test_count, |
| 1448 | .self_test = pcnet32_ethtool_test, |
| 1449 | .phys_id = pcnet32_phys_id, |
| 1450 | .get_regs_len = pcnet32_get_regs_len, |
| 1451 | .get_regs = pcnet32_get_regs, |
| 1452 | .get_perm_addr = ethtool_op_get_perm_addr, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1453 | }; |
| 1454 | |
| 1455 | /* only probes for non-PCI devices, the rest are handled by |
| 1456 | * pci_register_driver via pcnet32_probe_pci */ |
| 1457 | |
Don Fry | dcaf976 | 2006-06-29 13:52:29 -0700 | [diff] [blame] | 1458 | static void __devinit pcnet32_probe_vlbus(unsigned int *pcnet32_portlist) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1459 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1460 | unsigned int *port, ioaddr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1461 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1462 | /* search for PCnet32 VLB cards at known addresses */ |
| 1463 | for (port = pcnet32_portlist; (ioaddr = *port); port++) { |
| 1464 | if (request_region |
| 1465 | (ioaddr, PCNET32_TOTAL_SIZE, "pcnet32_probe_vlbus")) { |
| 1466 | /* check if there is really a pcnet chip on that ioaddr */ |
| 1467 | if ((inb(ioaddr + 14) == 0x57) |
| 1468 | && (inb(ioaddr + 15) == 0x57)) { |
| 1469 | pcnet32_probe1(ioaddr, 0, NULL); |
| 1470 | } else { |
| 1471 | release_region(ioaddr, PCNET32_TOTAL_SIZE); |
| 1472 | } |
| 1473 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1474 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1475 | } |
| 1476 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1477 | static int __devinit |
| 1478 | pcnet32_probe_pci(struct pci_dev *pdev, const struct pci_device_id *ent) |
| 1479 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1480 | unsigned long ioaddr; |
| 1481 | int err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1482 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1483 | err = pci_enable_device(pdev); |
| 1484 | if (err < 0) { |
| 1485 | if (pcnet32_debug & NETIF_MSG_PROBE) |
| 1486 | printk(KERN_ERR PFX |
| 1487 | "failed to enable device -- err=%d\n", err); |
| 1488 | return err; |
| 1489 | } |
| 1490 | pci_set_master(pdev); |
| 1491 | |
| 1492 | ioaddr = pci_resource_start(pdev, 0); |
| 1493 | if (!ioaddr) { |
| 1494 | if (pcnet32_debug & NETIF_MSG_PROBE) |
| 1495 | printk(KERN_ERR PFX |
| 1496 | "card has no PCI IO resources, aborting\n"); |
| 1497 | return -ENODEV; |
| 1498 | } |
| 1499 | |
| 1500 | if (!pci_dma_supported(pdev, PCNET32_DMA_MASK)) { |
| 1501 | if (pcnet32_debug & NETIF_MSG_PROBE) |
| 1502 | printk(KERN_ERR PFX |
| 1503 | "architecture does not support 32bit PCI busmaster DMA\n"); |
| 1504 | return -ENODEV; |
| 1505 | } |
| 1506 | if (request_region(ioaddr, PCNET32_TOTAL_SIZE, "pcnet32_probe_pci") == |
| 1507 | NULL) { |
| 1508 | if (pcnet32_debug & NETIF_MSG_PROBE) |
| 1509 | printk(KERN_ERR PFX |
| 1510 | "io address range already allocated\n"); |
| 1511 | return -EBUSY; |
| 1512 | } |
| 1513 | |
| 1514 | err = pcnet32_probe1(ioaddr, 1, pdev); |
| 1515 | if (err < 0) { |
| 1516 | pci_disable_device(pdev); |
| 1517 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1518 | return err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1519 | } |
| 1520 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1521 | /* pcnet32_probe1 |
| 1522 | * Called from both pcnet32_probe_vlbus and pcnet_probe_pci. |
| 1523 | * pdev will be NULL when called from pcnet32_probe_vlbus. |
| 1524 | */ |
| 1525 | static int __devinit |
| 1526 | pcnet32_probe1(unsigned long ioaddr, int shared, struct pci_dev *pdev) |
| 1527 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1528 | struct pcnet32_private *lp; |
| 1529 | dma_addr_t lp_dma_addr; |
| 1530 | int i, media; |
| 1531 | int fdx, mii, fset, dxsuflo; |
| 1532 | int chip_version; |
| 1533 | char *chipname; |
| 1534 | struct net_device *dev; |
| 1535 | struct pcnet32_access *a = NULL; |
| 1536 | u8 promaddr[6]; |
| 1537 | int ret = -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1538 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1539 | /* reset the chip */ |
| 1540 | pcnet32_wio_reset(ioaddr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1541 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1542 | /* NOTE: 16-bit check is first, otherwise some older PCnet chips fail */ |
| 1543 | if (pcnet32_wio_read_csr(ioaddr, 0) == 4 && pcnet32_wio_check(ioaddr)) { |
| 1544 | a = &pcnet32_wio; |
| 1545 | } else { |
| 1546 | pcnet32_dwio_reset(ioaddr); |
| 1547 | if (pcnet32_dwio_read_csr(ioaddr, 0) == 4 |
| 1548 | && pcnet32_dwio_check(ioaddr)) { |
| 1549 | a = &pcnet32_dwio; |
| 1550 | } else |
| 1551 | goto err_release_region; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1552 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1553 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1554 | chip_version = |
| 1555 | a->read_csr(ioaddr, 88) | (a->read_csr(ioaddr, 89) << 16); |
| 1556 | if ((pcnet32_debug & NETIF_MSG_PROBE) && (pcnet32_debug & NETIF_MSG_HW)) |
| 1557 | printk(KERN_INFO " PCnet chip version is %#x.\n", |
| 1558 | chip_version); |
| 1559 | if ((chip_version & 0xfff) != 0x003) { |
| 1560 | if (pcnet32_debug & NETIF_MSG_PROBE) |
| 1561 | printk(KERN_INFO PFX "Unsupported chip version.\n"); |
| 1562 | goto err_release_region; |
| 1563 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1564 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1565 | /* initialize variables */ |
| 1566 | fdx = mii = fset = dxsuflo = 0; |
| 1567 | chip_version = (chip_version >> 12) & 0xffff; |
| 1568 | |
| 1569 | switch (chip_version) { |
| 1570 | case 0x2420: |
| 1571 | chipname = "PCnet/PCI 79C970"; /* PCI */ |
| 1572 | break; |
| 1573 | case 0x2430: |
| 1574 | if (shared) |
| 1575 | chipname = "PCnet/PCI 79C970"; /* 970 gives the wrong chip id back */ |
| 1576 | else |
| 1577 | chipname = "PCnet/32 79C965"; /* 486/VL bus */ |
| 1578 | break; |
| 1579 | case 0x2621: |
| 1580 | chipname = "PCnet/PCI II 79C970A"; /* PCI */ |
| 1581 | fdx = 1; |
| 1582 | break; |
| 1583 | case 0x2623: |
| 1584 | chipname = "PCnet/FAST 79C971"; /* PCI */ |
| 1585 | fdx = 1; |
| 1586 | mii = 1; |
| 1587 | fset = 1; |
| 1588 | break; |
| 1589 | case 0x2624: |
| 1590 | chipname = "PCnet/FAST+ 79C972"; /* PCI */ |
| 1591 | fdx = 1; |
| 1592 | mii = 1; |
| 1593 | fset = 1; |
| 1594 | break; |
| 1595 | case 0x2625: |
| 1596 | chipname = "PCnet/FAST III 79C973"; /* PCI */ |
| 1597 | fdx = 1; |
| 1598 | mii = 1; |
| 1599 | break; |
| 1600 | case 0x2626: |
| 1601 | chipname = "PCnet/Home 79C978"; /* PCI */ |
| 1602 | fdx = 1; |
| 1603 | /* |
| 1604 | * This is based on specs published at www.amd.com. This section |
| 1605 | * assumes that a card with a 79C978 wants to go into standard |
| 1606 | * ethernet mode. The 79C978 can also go into 1Mb HomePNA mode, |
| 1607 | * and the module option homepna=1 can select this instead. |
| 1608 | */ |
| 1609 | media = a->read_bcr(ioaddr, 49); |
| 1610 | media &= ~3; /* default to 10Mb ethernet */ |
| 1611 | if (cards_found < MAX_UNITS && homepna[cards_found]) |
| 1612 | media |= 1; /* switch to home wiring mode */ |
| 1613 | if (pcnet32_debug & NETIF_MSG_PROBE) |
| 1614 | printk(KERN_DEBUG PFX "media set to %sMbit mode.\n", |
| 1615 | (media & 1) ? "1" : "10"); |
| 1616 | a->write_bcr(ioaddr, 49, media); |
| 1617 | break; |
| 1618 | case 0x2627: |
| 1619 | chipname = "PCnet/FAST III 79C975"; /* PCI */ |
| 1620 | fdx = 1; |
| 1621 | mii = 1; |
| 1622 | break; |
| 1623 | case 0x2628: |
| 1624 | chipname = "PCnet/PRO 79C976"; |
| 1625 | fdx = 1; |
| 1626 | mii = 1; |
| 1627 | break; |
| 1628 | default: |
| 1629 | if (pcnet32_debug & NETIF_MSG_PROBE) |
| 1630 | printk(KERN_INFO PFX |
| 1631 | "PCnet version %#x, no PCnet32 chip.\n", |
| 1632 | chip_version); |
| 1633 | goto err_release_region; |
| 1634 | } |
| 1635 | |
| 1636 | /* |
| 1637 | * On selected chips turn on the BCR18:NOUFLO bit. This stops transmit |
| 1638 | * starting until the packet is loaded. Strike one for reliability, lose |
| 1639 | * one for latency - although on PCI this isnt a big loss. Older chips |
| 1640 | * have FIFO's smaller than a packet, so you can't do this. |
| 1641 | * Turn on BCR18:BurstRdEn and BCR18:BurstWrEn. |
| 1642 | */ |
| 1643 | |
| 1644 | if (fset) { |
| 1645 | a->write_bcr(ioaddr, 18, (a->read_bcr(ioaddr, 18) | 0x0860)); |
| 1646 | a->write_csr(ioaddr, 80, |
| 1647 | (a->read_csr(ioaddr, 80) & 0x0C00) | 0x0c00); |
| 1648 | dxsuflo = 1; |
| 1649 | } |
| 1650 | |
| 1651 | dev = alloc_etherdev(0); |
| 1652 | if (!dev) { |
| 1653 | if (pcnet32_debug & NETIF_MSG_PROBE) |
| 1654 | printk(KERN_ERR PFX "Memory allocation failed.\n"); |
| 1655 | ret = -ENOMEM; |
| 1656 | goto err_release_region; |
| 1657 | } |
| 1658 | SET_NETDEV_DEV(dev, &pdev->dev); |
| 1659 | |
| 1660 | if (pcnet32_debug & NETIF_MSG_PROBE) |
| 1661 | printk(KERN_INFO PFX "%s at %#3lx,", chipname, ioaddr); |
| 1662 | |
| 1663 | /* In most chips, after a chip reset, the ethernet address is read from the |
| 1664 | * station address PROM at the base address and programmed into the |
| 1665 | * "Physical Address Registers" CSR12-14. |
| 1666 | * As a precautionary measure, we read the PROM values and complain if |
Linas Vepstas | bc0e1fc | 2006-03-28 16:36:23 -0600 | [diff] [blame] | 1667 | * they disagree with the CSRs. If they miscompare, and the PROM addr |
| 1668 | * is valid, then the PROM addr is used. |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1669 | */ |
| 1670 | for (i = 0; i < 3; i++) { |
| 1671 | unsigned int val; |
| 1672 | val = a->read_csr(ioaddr, i + 12) & 0x0ffff; |
| 1673 | /* There may be endianness issues here. */ |
| 1674 | dev->dev_addr[2 * i] = val & 0x0ff; |
| 1675 | dev->dev_addr[2 * i + 1] = (val >> 8) & 0x0ff; |
| 1676 | } |
| 1677 | |
| 1678 | /* read PROM address and compare with CSR address */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1679 | for (i = 0; i < 6; i++) |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1680 | promaddr[i] = inb(ioaddr + i); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1681 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1682 | if (memcmp(promaddr, dev->dev_addr, 6) |
| 1683 | || !is_valid_ether_addr(dev->dev_addr)) { |
| 1684 | if (is_valid_ether_addr(promaddr)) { |
| 1685 | if (pcnet32_debug & NETIF_MSG_PROBE) { |
| 1686 | printk(" warning: CSR address invalid,\n"); |
| 1687 | printk(KERN_INFO |
| 1688 | " using instead PROM address of"); |
| 1689 | } |
| 1690 | memcpy(dev->dev_addr, promaddr, 6); |
| 1691 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1692 | } |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1693 | memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1694 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1695 | /* if the ethernet address is not valid, force to 00:00:00:00:00:00 */ |
| 1696 | if (!is_valid_ether_addr(dev->perm_addr)) |
| 1697 | memset(dev->dev_addr, 0, sizeof(dev->dev_addr)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1698 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1699 | if (pcnet32_debug & NETIF_MSG_PROBE) { |
| 1700 | for (i = 0; i < 6; i++) |
| 1701 | printk(" %2.2x", dev->dev_addr[i]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1702 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1703 | /* Version 0x2623 and 0x2624 */ |
| 1704 | if (((chip_version + 1) & 0xfffe) == 0x2624) { |
| 1705 | i = a->read_csr(ioaddr, 80) & 0x0C00; /* Check tx_start_pt */ |
| 1706 | printk("\n" KERN_INFO " tx_start_pt(0x%04x):", i); |
| 1707 | switch (i >> 10) { |
| 1708 | case 0: |
| 1709 | printk(" 20 bytes,"); |
| 1710 | break; |
| 1711 | case 1: |
| 1712 | printk(" 64 bytes,"); |
| 1713 | break; |
| 1714 | case 2: |
| 1715 | printk(" 128 bytes,"); |
| 1716 | break; |
| 1717 | case 3: |
| 1718 | printk("~220 bytes,"); |
| 1719 | break; |
| 1720 | } |
| 1721 | i = a->read_bcr(ioaddr, 18); /* Check Burst/Bus control */ |
| 1722 | printk(" BCR18(%x):", i & 0xffff); |
| 1723 | if (i & (1 << 5)) |
| 1724 | printk("BurstWrEn "); |
| 1725 | if (i & (1 << 6)) |
| 1726 | printk("BurstRdEn "); |
| 1727 | if (i & (1 << 7)) |
| 1728 | printk("DWordIO "); |
| 1729 | if (i & (1 << 11)) |
| 1730 | printk("NoUFlow "); |
| 1731 | i = a->read_bcr(ioaddr, 25); |
| 1732 | printk("\n" KERN_INFO " SRAMSIZE=0x%04x,", i << 8); |
| 1733 | i = a->read_bcr(ioaddr, 26); |
| 1734 | printk(" SRAM_BND=0x%04x,", i << 8); |
| 1735 | i = a->read_bcr(ioaddr, 27); |
| 1736 | if (i & (1 << 14)) |
| 1737 | printk("LowLatRx"); |
| 1738 | } |
| 1739 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1740 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1741 | dev->base_addr = ioaddr; |
| 1742 | /* pci_alloc_consistent returns page-aligned memory, so we do not have to check the alignment */ |
| 1743 | if ((lp = |
| 1744 | pci_alloc_consistent(pdev, sizeof(*lp), &lp_dma_addr)) == NULL) { |
| 1745 | if (pcnet32_debug & NETIF_MSG_PROBE) |
| 1746 | printk(KERN_ERR PFX |
| 1747 | "Consistent memory allocation failed.\n"); |
| 1748 | ret = -ENOMEM; |
| 1749 | goto err_free_netdev; |
| 1750 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1751 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1752 | memset(lp, 0, sizeof(*lp)); |
| 1753 | lp->dma_addr = lp_dma_addr; |
| 1754 | lp->pci_dev = pdev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1755 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1756 | spin_lock_init(&lp->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1757 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1758 | SET_MODULE_OWNER(dev); |
| 1759 | SET_NETDEV_DEV(dev, &pdev->dev); |
| 1760 | dev->priv = lp; |
| 1761 | lp->name = chipname; |
| 1762 | lp->shared_irq = shared; |
| 1763 | lp->tx_ring_size = TX_RING_SIZE; /* default tx ring size */ |
| 1764 | lp->rx_ring_size = RX_RING_SIZE; /* default rx ring size */ |
| 1765 | lp->tx_mod_mask = lp->tx_ring_size - 1; |
| 1766 | lp->rx_mod_mask = lp->rx_ring_size - 1; |
| 1767 | lp->tx_len_bits = (PCNET32_LOG_TX_BUFFERS << 12); |
| 1768 | lp->rx_len_bits = (PCNET32_LOG_RX_BUFFERS << 4); |
| 1769 | lp->mii_if.full_duplex = fdx; |
| 1770 | lp->mii_if.phy_id_mask = 0x1f; |
| 1771 | lp->mii_if.reg_num_mask = 0x1f; |
| 1772 | lp->dxsuflo = dxsuflo; |
| 1773 | lp->mii = mii; |
Don Fry | 8d91626 | 2006-08-22 10:22:37 -0700 | [diff] [blame] | 1774 | lp->chip_version = chip_version; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1775 | lp->msg_enable = pcnet32_debug; |
| 1776 | if ((cards_found >= MAX_UNITS) |
| 1777 | || (options[cards_found] > sizeof(options_mapping))) |
| 1778 | lp->options = PCNET32_PORT_ASEL; |
| 1779 | else |
| 1780 | lp->options = options_mapping[options[cards_found]]; |
| 1781 | lp->mii_if.dev = dev; |
| 1782 | lp->mii_if.mdio_read = mdio_read; |
| 1783 | lp->mii_if.mdio_write = mdio_write; |
| 1784 | |
| 1785 | if (fdx && !(lp->options & PCNET32_PORT_ASEL) && |
| 1786 | ((cards_found >= MAX_UNITS) || full_duplex[cards_found])) |
| 1787 | lp->options |= PCNET32_PORT_FD; |
| 1788 | |
| 1789 | if (!a) { |
| 1790 | if (pcnet32_debug & NETIF_MSG_PROBE) |
| 1791 | printk(KERN_ERR PFX "No access methods\n"); |
| 1792 | ret = -ENODEV; |
| 1793 | goto err_free_consistent; |
| 1794 | } |
| 1795 | lp->a = *a; |
| 1796 | |
| 1797 | /* prior to register_netdev, dev->name is not yet correct */ |
| 1798 | if (pcnet32_alloc_ring(dev, pci_name(lp->pci_dev))) { |
| 1799 | ret = -ENOMEM; |
| 1800 | goto err_free_ring; |
| 1801 | } |
| 1802 | /* detect special T1/E1 WAN card by checking for MAC address */ |
| 1803 | if (dev->dev_addr[0] == 0x00 && dev->dev_addr[1] == 0xe0 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1804 | && dev->dev_addr[2] == 0x75) |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1805 | lp->options = PCNET32_PORT_FD | PCNET32_PORT_GPSI; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1806 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1807 | lp->init_block.mode = le16_to_cpu(0x0003); /* Disable Rx and Tx. */ |
| 1808 | lp->init_block.tlen_rlen = |
| 1809 | le16_to_cpu(lp->tx_len_bits | lp->rx_len_bits); |
| 1810 | for (i = 0; i < 6; i++) |
| 1811 | lp->init_block.phys_addr[i] = dev->dev_addr[i]; |
| 1812 | lp->init_block.filter[0] = 0x00000000; |
| 1813 | lp->init_block.filter[1] = 0x00000000; |
| 1814 | lp->init_block.rx_ring = (u32) le32_to_cpu(lp->rx_ring_dma_addr); |
| 1815 | lp->init_block.tx_ring = (u32) le32_to_cpu(lp->tx_ring_dma_addr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1816 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1817 | /* switch pcnet32 to 32bit mode */ |
| 1818 | a->write_bcr(ioaddr, 20, 2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1819 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1820 | a->write_csr(ioaddr, 1, (lp->dma_addr + offsetof(struct pcnet32_private, |
| 1821 | init_block)) & 0xffff); |
| 1822 | a->write_csr(ioaddr, 2, (lp->dma_addr + offsetof(struct pcnet32_private, |
| 1823 | init_block)) >> 16); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1824 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1825 | if (pdev) { /* use the IRQ provided by PCI */ |
| 1826 | dev->irq = pdev->irq; |
| 1827 | if (pcnet32_debug & NETIF_MSG_PROBE) |
| 1828 | printk(" assigned IRQ %d.\n", dev->irq); |
| 1829 | } else { |
| 1830 | unsigned long irq_mask = probe_irq_on(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1831 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1832 | /* |
| 1833 | * To auto-IRQ we enable the initialization-done and DMA error |
| 1834 | * interrupts. For ISA boards we get a DMA error, but VLB and PCI |
| 1835 | * boards will work. |
| 1836 | */ |
| 1837 | /* Trigger an initialization just for the interrupt. */ |
Don Fry | b368a3f | 2006-09-13 10:16:07 -0700 | [diff] [blame] | 1838 | a->write_csr(ioaddr, CSR0, CSR0_INTEN | CSR0_INIT); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1839 | mdelay(1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1840 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1841 | dev->irq = probe_irq_off(irq_mask); |
| 1842 | if (!dev->irq) { |
| 1843 | if (pcnet32_debug & NETIF_MSG_PROBE) |
| 1844 | printk(", failed to detect IRQ line.\n"); |
| 1845 | ret = -ENODEV; |
| 1846 | goto err_free_ring; |
| 1847 | } |
| 1848 | if (pcnet32_debug & NETIF_MSG_PROBE) |
| 1849 | printk(", probed IRQ %d.\n", dev->irq); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1850 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1851 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1852 | /* Set the mii phy_id so that we can query the link state */ |
| 1853 | if (lp->mii) { |
| 1854 | /* lp->phycount and lp->phymask are set to 0 by memset above */ |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 1855 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1856 | lp->mii_if.phy_id = ((lp->a.read_bcr(ioaddr, 33)) >> 5) & 0x1f; |
| 1857 | /* scan for PHYs */ |
| 1858 | for (i = 0; i < PCNET32_MAX_PHYS; i++) { |
| 1859 | unsigned short id1, id2; |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 1860 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1861 | id1 = mdio_read(dev, i, MII_PHYSID1); |
| 1862 | if (id1 == 0xffff) |
| 1863 | continue; |
| 1864 | id2 = mdio_read(dev, i, MII_PHYSID2); |
| 1865 | if (id2 == 0xffff) |
| 1866 | continue; |
| 1867 | if (i == 31 && ((chip_version + 1) & 0xfffe) == 0x2624) |
| 1868 | continue; /* 79C971 & 79C972 have phantom phy at id 31 */ |
| 1869 | lp->phycount++; |
| 1870 | lp->phymask |= (1 << i); |
| 1871 | lp->mii_if.phy_id = i; |
| 1872 | if (pcnet32_debug & NETIF_MSG_PROBE) |
| 1873 | printk(KERN_INFO PFX |
| 1874 | "Found PHY %04x:%04x at address %d.\n", |
| 1875 | id1, id2, i); |
| 1876 | } |
| 1877 | lp->a.write_bcr(ioaddr, 33, (lp->mii_if.phy_id) << 5); |
| 1878 | if (lp->phycount > 1) { |
| 1879 | lp->options |= PCNET32_PORT_MII; |
| 1880 | } |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 1881 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1882 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1883 | init_timer(&lp->watchdog_timer); |
| 1884 | lp->watchdog_timer.data = (unsigned long)dev; |
| 1885 | lp->watchdog_timer.function = (void *)&pcnet32_watchdog; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1886 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1887 | /* The PCNET32-specific entries in the device structure. */ |
| 1888 | dev->open = &pcnet32_open; |
| 1889 | dev->hard_start_xmit = &pcnet32_start_xmit; |
| 1890 | dev->stop = &pcnet32_close; |
| 1891 | dev->get_stats = &pcnet32_get_stats; |
| 1892 | dev->set_multicast_list = &pcnet32_set_multicast_list; |
| 1893 | dev->do_ioctl = &pcnet32_ioctl; |
| 1894 | dev->ethtool_ops = &pcnet32_ethtool_ops; |
| 1895 | dev->tx_timeout = pcnet32_tx_timeout; |
| 1896 | dev->watchdog_timeo = (5 * HZ); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1897 | |
| 1898 | #ifdef CONFIG_NET_POLL_CONTROLLER |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1899 | dev->poll_controller = pcnet32_poll_controller; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1900 | #endif |
| 1901 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1902 | /* Fill in the generic fields of the device structure. */ |
| 1903 | if (register_netdev(dev)) |
| 1904 | goto err_free_ring; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1905 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1906 | if (pdev) { |
| 1907 | pci_set_drvdata(pdev, dev); |
| 1908 | } else { |
| 1909 | lp->next = pcnet32_dev; |
| 1910 | pcnet32_dev = dev; |
| 1911 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1912 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1913 | if (pcnet32_debug & NETIF_MSG_PROBE) |
| 1914 | printk(KERN_INFO "%s: registered as %s\n", dev->name, lp->name); |
| 1915 | cards_found++; |
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 | /* enable LED writes */ |
| 1918 | a->write_bcr(ioaddr, 2, a->read_bcr(ioaddr, 2) | 0x1000); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1919 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1920 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1921 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1922 | err_free_ring: |
| 1923 | pcnet32_free_ring(dev); |
| 1924 | err_free_consistent: |
| 1925 | pci_free_consistent(lp->pci_dev, sizeof(*lp), lp, lp->dma_addr); |
| 1926 | err_free_netdev: |
| 1927 | free_netdev(dev); |
| 1928 | err_release_region: |
| 1929 | release_region(ioaddr, PCNET32_TOTAL_SIZE); |
| 1930 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1931 | } |
| 1932 | |
Don Fry | a88c844 | 2005-11-01 12:04:33 -0800 | [diff] [blame] | 1933 | /* if any allocation fails, caller must also call pcnet32_free_ring */ |
| 1934 | static int pcnet32_alloc_ring(struct net_device *dev, char *name) |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 1935 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1936 | struct pcnet32_private *lp = dev->priv; |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 1937 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1938 | lp->tx_ring = pci_alloc_consistent(lp->pci_dev, |
| 1939 | sizeof(struct pcnet32_tx_head) * |
| 1940 | lp->tx_ring_size, |
| 1941 | &lp->tx_ring_dma_addr); |
| 1942 | if (lp->tx_ring == NULL) { |
Don Fry | 12fa30f | 2006-06-29 13:53:48 -0700 | [diff] [blame] | 1943 | if (netif_msg_drv(lp)) |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1944 | printk("\n" KERN_ERR PFX |
| 1945 | "%s: Consistent memory allocation failed.\n", |
| 1946 | name); |
| 1947 | return -ENOMEM; |
| 1948 | } |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 1949 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1950 | lp->rx_ring = pci_alloc_consistent(lp->pci_dev, |
| 1951 | sizeof(struct pcnet32_rx_head) * |
| 1952 | lp->rx_ring_size, |
| 1953 | &lp->rx_ring_dma_addr); |
| 1954 | if (lp->rx_ring == NULL) { |
Don Fry | 12fa30f | 2006-06-29 13:53:48 -0700 | [diff] [blame] | 1955 | if (netif_msg_drv(lp)) |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1956 | printk("\n" KERN_ERR PFX |
| 1957 | "%s: Consistent memory allocation failed.\n", |
| 1958 | name); |
| 1959 | return -ENOMEM; |
| 1960 | } |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 1961 | |
Don Fry | 12fa30f | 2006-06-29 13:53:48 -0700 | [diff] [blame] | 1962 | 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] | 1963 | GFP_ATOMIC); |
| 1964 | if (!lp->tx_dma_addr) { |
Don Fry | 12fa30f | 2006-06-29 13:53:48 -0700 | [diff] [blame] | 1965 | if (netif_msg_drv(lp)) |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1966 | printk("\n" KERN_ERR PFX |
| 1967 | "%s: Memory allocation failed.\n", name); |
| 1968 | return -ENOMEM; |
| 1969 | } |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 1970 | |
Don Fry | 12fa30f | 2006-06-29 13:53:48 -0700 | [diff] [blame] | 1971 | 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] | 1972 | GFP_ATOMIC); |
| 1973 | if (!lp->rx_dma_addr) { |
Don Fry | 12fa30f | 2006-06-29 13:53:48 -0700 | [diff] [blame] | 1974 | if (netif_msg_drv(lp)) |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1975 | printk("\n" KERN_ERR PFX |
| 1976 | "%s: Memory allocation failed.\n", name); |
| 1977 | return -ENOMEM; |
| 1978 | } |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 1979 | |
Don Fry | 12fa30f | 2006-06-29 13:53:48 -0700 | [diff] [blame] | 1980 | lp->tx_skbuff = kcalloc(lp->tx_ring_size, sizeof(struct sk_buff *), |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1981 | GFP_ATOMIC); |
| 1982 | if (!lp->tx_skbuff) { |
Don Fry | 12fa30f | 2006-06-29 13:53:48 -0700 | [diff] [blame] | 1983 | if (netif_msg_drv(lp)) |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1984 | printk("\n" KERN_ERR PFX |
| 1985 | "%s: Memory allocation failed.\n", name); |
| 1986 | return -ENOMEM; |
| 1987 | } |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 1988 | |
Don Fry | 12fa30f | 2006-06-29 13:53:48 -0700 | [diff] [blame] | 1989 | lp->rx_skbuff = kcalloc(lp->rx_ring_size, sizeof(struct sk_buff *), |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1990 | GFP_ATOMIC); |
| 1991 | if (!lp->rx_skbuff) { |
Don Fry | 12fa30f | 2006-06-29 13:53:48 -0700 | [diff] [blame] | 1992 | if (netif_msg_drv(lp)) |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1993 | printk("\n" KERN_ERR PFX |
| 1994 | "%s: Memory allocation failed.\n", name); |
| 1995 | return -ENOMEM; |
| 1996 | } |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 1997 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1998 | return 0; |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 1999 | } |
| 2000 | |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 2001 | static void pcnet32_free_ring(struct net_device *dev) |
| 2002 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2003 | struct pcnet32_private *lp = dev->priv; |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 2004 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2005 | kfree(lp->tx_skbuff); |
| 2006 | lp->tx_skbuff = NULL; |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 2007 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2008 | kfree(lp->rx_skbuff); |
| 2009 | lp->rx_skbuff = NULL; |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 2010 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2011 | kfree(lp->tx_dma_addr); |
| 2012 | lp->tx_dma_addr = NULL; |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 2013 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2014 | kfree(lp->rx_dma_addr); |
| 2015 | lp->rx_dma_addr = NULL; |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 2016 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2017 | if (lp->tx_ring) { |
| 2018 | pci_free_consistent(lp->pci_dev, |
| 2019 | sizeof(struct pcnet32_tx_head) * |
| 2020 | lp->tx_ring_size, lp->tx_ring, |
| 2021 | lp->tx_ring_dma_addr); |
| 2022 | lp->tx_ring = NULL; |
| 2023 | } |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 2024 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2025 | if (lp->rx_ring) { |
| 2026 | pci_free_consistent(lp->pci_dev, |
| 2027 | sizeof(struct pcnet32_rx_head) * |
| 2028 | lp->rx_ring_size, lp->rx_ring, |
| 2029 | lp->rx_ring_dma_addr); |
| 2030 | lp->rx_ring = NULL; |
| 2031 | } |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 2032 | } |
| 2033 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2034 | static int pcnet32_open(struct net_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2035 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2036 | struct pcnet32_private *lp = dev->priv; |
| 2037 | unsigned long ioaddr = dev->base_addr; |
| 2038 | u16 val; |
| 2039 | int i; |
| 2040 | int rc; |
| 2041 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2042 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2043 | if (request_irq(dev->irq, &pcnet32_interrupt, |
Thomas Gleixner | 1fb9df5 | 2006-07-01 19:29:39 -0700 | [diff] [blame] | 2044 | lp->shared_irq ? IRQF_SHARED : 0, dev->name, |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2045 | (void *)dev)) { |
| 2046 | return -EAGAIN; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2047 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2048 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2049 | spin_lock_irqsave(&lp->lock, flags); |
| 2050 | /* Check for a valid station address */ |
| 2051 | if (!is_valid_ether_addr(dev->dev_addr)) { |
| 2052 | rc = -EINVAL; |
| 2053 | goto err_free_irq; |
| 2054 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2055 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2056 | /* Reset the PCNET32 */ |
| 2057 | lp->a.reset(ioaddr); |
| 2058 | |
| 2059 | /* switch pcnet32 to 32bit mode */ |
| 2060 | lp->a.write_bcr(ioaddr, 20, 2); |
| 2061 | |
| 2062 | if (netif_msg_ifup(lp)) |
| 2063 | printk(KERN_DEBUG |
| 2064 | "%s: pcnet32_open() irq %d tx/rx rings %#x/%#x init %#x.\n", |
| 2065 | dev->name, dev->irq, (u32) (lp->tx_ring_dma_addr), |
| 2066 | (u32) (lp->rx_ring_dma_addr), |
| 2067 | (u32) (lp->dma_addr + |
| 2068 | offsetof(struct pcnet32_private, init_block))); |
| 2069 | |
| 2070 | /* set/reset autoselect bit */ |
| 2071 | val = lp->a.read_bcr(ioaddr, 2) & ~2; |
| 2072 | if (lp->options & PCNET32_PORT_ASEL) |
| 2073 | val |= 2; |
| 2074 | lp->a.write_bcr(ioaddr, 2, val); |
| 2075 | |
| 2076 | /* handle full duplex setting */ |
| 2077 | if (lp->mii_if.full_duplex) { |
| 2078 | val = lp->a.read_bcr(ioaddr, 9) & ~3; |
| 2079 | if (lp->options & PCNET32_PORT_FD) { |
| 2080 | val |= 1; |
| 2081 | if (lp->options == (PCNET32_PORT_FD | PCNET32_PORT_AUI)) |
| 2082 | val |= 2; |
| 2083 | } else if (lp->options & PCNET32_PORT_ASEL) { |
| 2084 | /* workaround of xSeries250, turn on for 79C975 only */ |
Don Fry | 8d91626 | 2006-08-22 10:22:37 -0700 | [diff] [blame] | 2085 | if (lp->chip_version == 0x2627) |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2086 | val |= 3; |
| 2087 | } |
| 2088 | lp->a.write_bcr(ioaddr, 9, val); |
| 2089 | } |
| 2090 | |
| 2091 | /* set/reset GPSI bit in test register */ |
| 2092 | val = lp->a.read_csr(ioaddr, 124) & ~0x10; |
| 2093 | if ((lp->options & PCNET32_PORT_PORTSEL) == PCNET32_PORT_GPSI) |
| 2094 | val |= 0x10; |
| 2095 | lp->a.write_csr(ioaddr, 124, val); |
| 2096 | |
| 2097 | /* Allied Telesyn AT 2700/2701 FX are 100Mbit only and do not negotiate */ |
| 2098 | if (lp->pci_dev->subsystem_vendor == PCI_VENDOR_ID_AT && |
Don Fry | 2964bbd | 2005-11-01 12:50:57 -0800 | [diff] [blame] | 2099 | (lp->pci_dev->subsystem_device == PCI_SUBDEVICE_ID_AT_2700FX || |
| 2100 | lp->pci_dev->subsystem_device == PCI_SUBDEVICE_ID_AT_2701FX)) { |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 2101 | if (lp->options & PCNET32_PORT_ASEL) { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2102 | lp->options = PCNET32_PORT_FD | PCNET32_PORT_100; |
| 2103 | if (netif_msg_link(lp)) |
| 2104 | printk(KERN_DEBUG |
| 2105 | "%s: Setting 100Mb-Full Duplex.\n", |
| 2106 | dev->name); |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 2107 | } |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2108 | } |
| 2109 | if (lp->phycount < 2) { |
| 2110 | /* |
| 2111 | * 24 Jun 2004 according AMD, in order to change the PHY, |
| 2112 | * DANAS (or DISPM for 79C976) must be set; then select the speed, |
| 2113 | * duplex, and/or enable auto negotiation, and clear DANAS |
| 2114 | */ |
| 2115 | if (lp->mii && !(lp->options & PCNET32_PORT_ASEL)) { |
| 2116 | lp->a.write_bcr(ioaddr, 32, |
| 2117 | lp->a.read_bcr(ioaddr, 32) | 0x0080); |
| 2118 | /* disable Auto Negotiation, set 10Mpbs, HD */ |
| 2119 | val = lp->a.read_bcr(ioaddr, 32) & ~0xb8; |
| 2120 | if (lp->options & PCNET32_PORT_FD) |
| 2121 | val |= 0x10; |
| 2122 | if (lp->options & PCNET32_PORT_100) |
| 2123 | val |= 0x08; |
| 2124 | lp->a.write_bcr(ioaddr, 32, val); |
| 2125 | } else { |
| 2126 | if (lp->options & PCNET32_PORT_ASEL) { |
| 2127 | lp->a.write_bcr(ioaddr, 32, |
| 2128 | lp->a.read_bcr(ioaddr, |
| 2129 | 32) | 0x0080); |
| 2130 | /* enable auto negotiate, setup, disable fd */ |
| 2131 | val = lp->a.read_bcr(ioaddr, 32) & ~0x98; |
| 2132 | val |= 0x20; |
| 2133 | lp->a.write_bcr(ioaddr, 32, val); |
| 2134 | } |
| 2135 | } |
| 2136 | } else { |
| 2137 | int first_phy = -1; |
| 2138 | u16 bmcr; |
| 2139 | u32 bcr9; |
| 2140 | struct ethtool_cmd ecmd; |
| 2141 | |
| 2142 | /* |
| 2143 | * There is really no good other way to handle multiple PHYs |
| 2144 | * other than turning off all automatics |
| 2145 | */ |
| 2146 | val = lp->a.read_bcr(ioaddr, 2); |
| 2147 | lp->a.write_bcr(ioaddr, 2, val & ~2); |
| 2148 | val = lp->a.read_bcr(ioaddr, 32); |
| 2149 | lp->a.write_bcr(ioaddr, 32, val & ~(1 << 7)); /* stop MII manager */ |
| 2150 | |
| 2151 | if (!(lp->options & PCNET32_PORT_ASEL)) { |
| 2152 | /* setup ecmd */ |
| 2153 | ecmd.port = PORT_MII; |
| 2154 | ecmd.transceiver = XCVR_INTERNAL; |
| 2155 | ecmd.autoneg = AUTONEG_DISABLE; |
| 2156 | ecmd.speed = |
| 2157 | lp-> |
| 2158 | options & PCNET32_PORT_100 ? SPEED_100 : SPEED_10; |
| 2159 | bcr9 = lp->a.read_bcr(ioaddr, 9); |
| 2160 | |
| 2161 | if (lp->options & PCNET32_PORT_FD) { |
| 2162 | ecmd.duplex = DUPLEX_FULL; |
| 2163 | bcr9 |= (1 << 0); |
| 2164 | } else { |
| 2165 | ecmd.duplex = DUPLEX_HALF; |
| 2166 | bcr9 |= ~(1 << 0); |
| 2167 | } |
| 2168 | lp->a.write_bcr(ioaddr, 9, bcr9); |
| 2169 | } |
| 2170 | |
| 2171 | for (i = 0; i < PCNET32_MAX_PHYS; i++) { |
| 2172 | if (lp->phymask & (1 << i)) { |
| 2173 | /* isolate all but the first PHY */ |
| 2174 | bmcr = mdio_read(dev, i, MII_BMCR); |
| 2175 | if (first_phy == -1) { |
| 2176 | first_phy = i; |
| 2177 | mdio_write(dev, i, MII_BMCR, |
| 2178 | bmcr & ~BMCR_ISOLATE); |
| 2179 | } else { |
| 2180 | mdio_write(dev, i, MII_BMCR, |
| 2181 | bmcr | BMCR_ISOLATE); |
| 2182 | } |
| 2183 | /* use mii_ethtool_sset to setup PHY */ |
| 2184 | lp->mii_if.phy_id = i; |
| 2185 | ecmd.phy_address = i; |
| 2186 | if (lp->options & PCNET32_PORT_ASEL) { |
| 2187 | mii_ethtool_gset(&lp->mii_if, &ecmd); |
| 2188 | ecmd.autoneg = AUTONEG_ENABLE; |
| 2189 | } |
| 2190 | mii_ethtool_sset(&lp->mii_if, &ecmd); |
| 2191 | } |
| 2192 | } |
| 2193 | lp->mii_if.phy_id = first_phy; |
| 2194 | if (netif_msg_link(lp)) |
| 2195 | printk(KERN_INFO "%s: Using PHY number %d.\n", |
| 2196 | dev->name, first_phy); |
| 2197 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2198 | |
| 2199 | #ifdef DO_DXSUFLO |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2200 | if (lp->dxsuflo) { /* Disable transmit stop on underflow */ |
Don Fry | b368a3f | 2006-09-13 10:16:07 -0700 | [diff] [blame] | 2201 | val = lp->a.read_csr(ioaddr, CSR3); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2202 | val |= 0x40; |
Don Fry | b368a3f | 2006-09-13 10:16:07 -0700 | [diff] [blame] | 2203 | lp->a.write_csr(ioaddr, CSR3, val); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2204 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2205 | #endif |
| 2206 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2207 | lp->init_block.mode = |
| 2208 | le16_to_cpu((lp->options & PCNET32_PORT_PORTSEL) << 7); |
| 2209 | pcnet32_load_multicast(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2210 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2211 | if (pcnet32_init_ring(dev)) { |
| 2212 | rc = -ENOMEM; |
| 2213 | goto err_free_ring; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2214 | } |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 2215 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2216 | /* Re-initialize the PCNET32, and start it when done. */ |
| 2217 | lp->a.write_csr(ioaddr, 1, (lp->dma_addr + |
| 2218 | offsetof(struct pcnet32_private, |
| 2219 | init_block)) & 0xffff); |
| 2220 | lp->a.write_csr(ioaddr, 2, |
| 2221 | (lp->dma_addr + |
| 2222 | offsetof(struct pcnet32_private, init_block)) >> 16); |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 2223 | |
Don Fry | b368a3f | 2006-09-13 10:16:07 -0700 | [diff] [blame] | 2224 | lp->a.write_csr(ioaddr, CSR4, 0x0915); /* auto tx pad */ |
| 2225 | lp->a.write_csr(ioaddr, CSR0, CSR0_INIT); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2226 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2227 | netif_start_queue(dev); |
| 2228 | |
Don Fry | 8d91626 | 2006-08-22 10:22:37 -0700 | [diff] [blame] | 2229 | if (lp->chip_version >= PCNET32_79C970A) { |
| 2230 | /* Print the link status and start the watchdog */ |
| 2231 | pcnet32_check_media(dev, 1); |
| 2232 | mod_timer(&(lp->watchdog_timer), PCNET32_WATCHDOG_TIMEOUT); |
| 2233 | } |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2234 | |
| 2235 | i = 0; |
| 2236 | while (i++ < 100) |
Don Fry | b368a3f | 2006-09-13 10:16:07 -0700 | [diff] [blame] | 2237 | if (lp->a.read_csr(ioaddr, CSR0) & CSR0_IDON) |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2238 | break; |
| 2239 | /* |
| 2240 | * We used to clear the InitDone bit, 0x0100, here but Mark Stockton |
| 2241 | * reports that doing so triggers a bug in the '974. |
| 2242 | */ |
Don Fry | b368a3f | 2006-09-13 10:16:07 -0700 | [diff] [blame] | 2243 | lp->a.write_csr(ioaddr, CSR0, CSR0_NORMAL); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2244 | |
| 2245 | if (netif_msg_ifup(lp)) |
| 2246 | printk(KERN_DEBUG |
| 2247 | "%s: pcnet32 open after %d ticks, init block %#x csr0 %4.4x.\n", |
| 2248 | dev->name, i, |
| 2249 | (u32) (lp->dma_addr + |
| 2250 | offsetof(struct pcnet32_private, init_block)), |
Don Fry | b368a3f | 2006-09-13 10:16:07 -0700 | [diff] [blame] | 2251 | lp->a.read_csr(ioaddr, CSR0)); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2252 | |
| 2253 | spin_unlock_irqrestore(&lp->lock, flags); |
| 2254 | |
| 2255 | return 0; /* Always succeed */ |
| 2256 | |
| 2257 | err_free_ring: |
| 2258 | /* free any allocated skbuffs */ |
Don Fry | ac5bfe4 | 2006-06-29 13:55:27 -0700 | [diff] [blame] | 2259 | pcnet32_purge_rx_ring(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2260 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2261 | /* |
| 2262 | * Switch back to 16bit mode to avoid problems with dumb |
| 2263 | * DOS packet driver after a warm reboot |
| 2264 | */ |
| 2265 | lp->a.write_bcr(ioaddr, 20, 4); |
| 2266 | |
| 2267 | err_free_irq: |
| 2268 | spin_unlock_irqrestore(&lp->lock, flags); |
| 2269 | free_irq(dev->irq, dev); |
| 2270 | return rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2271 | } |
| 2272 | |
| 2273 | /* |
| 2274 | * The LANCE has been halted for one reason or another (busmaster memory |
| 2275 | * arbitration error, Tx FIFO underflow, driver stopped it to reconfigure, |
| 2276 | * etc.). Modern LANCE variants always reload their ring-buffer |
| 2277 | * configuration when restarted, so we must reinitialize our ring |
| 2278 | * context before restarting. As part of this reinitialization, |
| 2279 | * find all packets still on the Tx ring and pretend that they had been |
| 2280 | * sent (in effect, drop the packets on the floor) - the higher-level |
| 2281 | * protocols will time out and retransmit. It'd be better to shuffle |
| 2282 | * these skbs to a temp list and then actually re-Tx them after |
| 2283 | * restarting the chip, but I'm too lazy to do so right now. dplatt@3do.com |
| 2284 | */ |
| 2285 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2286 | static void pcnet32_purge_tx_ring(struct net_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2287 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2288 | struct pcnet32_private *lp = dev->priv; |
| 2289 | int i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2290 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2291 | for (i = 0; i < lp->tx_ring_size; i++) { |
| 2292 | lp->tx_ring[i].status = 0; /* CPU owns buffer */ |
| 2293 | wmb(); /* Make sure adapter sees owner change */ |
| 2294 | if (lp->tx_skbuff[i]) { |
| 2295 | pci_unmap_single(lp->pci_dev, lp->tx_dma_addr[i], |
| 2296 | lp->tx_skbuff[i]->len, |
| 2297 | PCI_DMA_TODEVICE); |
| 2298 | dev_kfree_skb_any(lp->tx_skbuff[i]); |
| 2299 | } |
| 2300 | lp->tx_skbuff[i] = NULL; |
| 2301 | lp->tx_dma_addr[i] = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2302 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2303 | } |
| 2304 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2305 | /* Initialize the PCNET32 Rx and Tx rings. */ |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2306 | static int pcnet32_init_ring(struct net_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2307 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2308 | struct pcnet32_private *lp = dev->priv; |
| 2309 | int i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2310 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2311 | lp->tx_full = 0; |
| 2312 | lp->cur_rx = lp->cur_tx = 0; |
| 2313 | lp->dirty_rx = lp->dirty_tx = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2314 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2315 | for (i = 0; i < lp->rx_ring_size; i++) { |
| 2316 | struct sk_buff *rx_skbuff = lp->rx_skbuff[i]; |
| 2317 | if (rx_skbuff == NULL) { |
| 2318 | if (! |
| 2319 | (rx_skbuff = lp->rx_skbuff[i] = |
| 2320 | dev_alloc_skb(PKT_BUF_SZ))) { |
| 2321 | /* there is not much, we can do at this point */ |
Don Fry | b368a3f | 2006-09-13 10:16:07 -0700 | [diff] [blame] | 2322 | if (netif_msg_drv(lp)) |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2323 | printk(KERN_ERR |
| 2324 | "%s: pcnet32_init_ring dev_alloc_skb failed.\n", |
| 2325 | dev->name); |
| 2326 | return -1; |
| 2327 | } |
| 2328 | skb_reserve(rx_skbuff, 2); |
| 2329 | } |
| 2330 | |
| 2331 | rmb(); |
| 2332 | if (lp->rx_dma_addr[i] == 0) |
| 2333 | lp->rx_dma_addr[i] = |
| 2334 | pci_map_single(lp->pci_dev, rx_skbuff->data, |
| 2335 | PKT_BUF_SZ - 2, PCI_DMA_FROMDEVICE); |
| 2336 | lp->rx_ring[i].base = (u32) le32_to_cpu(lp->rx_dma_addr[i]); |
| 2337 | lp->rx_ring[i].buf_length = le16_to_cpu(2 - PKT_BUF_SZ); |
| 2338 | wmb(); /* Make sure owner changes after all others are visible */ |
| 2339 | lp->rx_ring[i].status = le16_to_cpu(0x8000); |
| 2340 | } |
| 2341 | /* The Tx buffer address is filled in as needed, but we do need to clear |
| 2342 | * the upper ownership bit. */ |
| 2343 | for (i = 0; i < lp->tx_ring_size; i++) { |
| 2344 | lp->tx_ring[i].status = 0; /* CPU owns buffer */ |
| 2345 | wmb(); /* Make sure adapter sees owner change */ |
| 2346 | lp->tx_ring[i].base = 0; |
| 2347 | lp->tx_dma_addr[i] = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2348 | } |
| 2349 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2350 | lp->init_block.tlen_rlen = |
| 2351 | le16_to_cpu(lp->tx_len_bits | lp->rx_len_bits); |
| 2352 | for (i = 0; i < 6; i++) |
| 2353 | lp->init_block.phys_addr[i] = dev->dev_addr[i]; |
| 2354 | lp->init_block.rx_ring = (u32) le32_to_cpu(lp->rx_ring_dma_addr); |
| 2355 | lp->init_block.tx_ring = (u32) le32_to_cpu(lp->tx_ring_dma_addr); |
| 2356 | wmb(); /* Make sure all changes are visible */ |
| 2357 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2358 | } |
| 2359 | |
| 2360 | /* the pcnet32 has been issued a stop or reset. Wait for the stop bit |
| 2361 | * then flush the pending transmit operations, re-initialize the ring, |
| 2362 | * and tell the chip to initialize. |
| 2363 | */ |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2364 | static void pcnet32_restart(struct net_device *dev, unsigned int csr0_bits) |
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 | struct pcnet32_private *lp = dev->priv; |
| 2367 | unsigned long ioaddr = dev->base_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2368 | int i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2369 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2370 | /* wait for stop */ |
| 2371 | for (i = 0; i < 100; i++) |
Don Fry | b368a3f | 2006-09-13 10:16:07 -0700 | [diff] [blame] | 2372 | if (lp->a.read_csr(ioaddr, CSR0) & CSR0_STOP) |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2373 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2374 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2375 | if (i >= 100 && netif_msg_drv(lp)) |
| 2376 | printk(KERN_ERR |
| 2377 | "%s: pcnet32_restart timed out waiting for stop.\n", |
| 2378 | dev->name); |
| 2379 | |
| 2380 | pcnet32_purge_tx_ring(dev); |
| 2381 | if (pcnet32_init_ring(dev)) |
| 2382 | return; |
| 2383 | |
| 2384 | /* ReInit Ring */ |
Don Fry | b368a3f | 2006-09-13 10:16:07 -0700 | [diff] [blame] | 2385 | lp->a.write_csr(ioaddr, CSR0, CSR0_INIT); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2386 | i = 0; |
| 2387 | while (i++ < 1000) |
Don Fry | b368a3f | 2006-09-13 10:16:07 -0700 | [diff] [blame] | 2388 | if (lp->a.read_csr(ioaddr, CSR0) & CSR0_IDON) |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2389 | break; |
| 2390 | |
Don Fry | b368a3f | 2006-09-13 10:16:07 -0700 | [diff] [blame] | 2391 | lp->a.write_csr(ioaddr, CSR0, csr0_bits); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2392 | } |
| 2393 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2394 | static void pcnet32_tx_timeout(struct net_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2395 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2396 | struct pcnet32_private *lp = dev->priv; |
| 2397 | unsigned long ioaddr = dev->base_addr, flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2398 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2399 | spin_lock_irqsave(&lp->lock, flags); |
| 2400 | /* Transmitter timeout, serious problems. */ |
| 2401 | if (pcnet32_debug & NETIF_MSG_DRV) |
| 2402 | printk(KERN_ERR |
| 2403 | "%s: transmit timed out, status %4.4x, resetting.\n", |
Don Fry | b368a3f | 2006-09-13 10:16:07 -0700 | [diff] [blame] | 2404 | dev->name, lp->a.read_csr(ioaddr, CSR0)); |
| 2405 | lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2406 | lp->stats.tx_errors++; |
| 2407 | if (netif_msg_tx_err(lp)) { |
| 2408 | int i; |
| 2409 | printk(KERN_DEBUG |
| 2410 | " Ring data dump: dirty_tx %d cur_tx %d%s cur_rx %d.", |
| 2411 | lp->dirty_tx, lp->cur_tx, lp->tx_full ? " (full)" : "", |
| 2412 | lp->cur_rx); |
| 2413 | for (i = 0; i < lp->rx_ring_size; i++) |
| 2414 | printk("%s %08x %04x %08x %04x", i & 1 ? "" : "\n ", |
| 2415 | le32_to_cpu(lp->rx_ring[i].base), |
| 2416 | (-le16_to_cpu(lp->rx_ring[i].buf_length)) & |
| 2417 | 0xffff, le32_to_cpu(lp->rx_ring[i].msg_length), |
| 2418 | le16_to_cpu(lp->rx_ring[i].status)); |
| 2419 | for (i = 0; i < lp->tx_ring_size; i++) |
| 2420 | printk("%s %08x %04x %08x %04x", i & 1 ? "" : "\n ", |
| 2421 | le32_to_cpu(lp->tx_ring[i].base), |
| 2422 | (-le16_to_cpu(lp->tx_ring[i].length)) & 0xffff, |
| 2423 | le32_to_cpu(lp->tx_ring[i].misc), |
| 2424 | le16_to_cpu(lp->tx_ring[i].status)); |
| 2425 | printk("\n"); |
| 2426 | } |
Don Fry | b368a3f | 2006-09-13 10:16:07 -0700 | [diff] [blame] | 2427 | pcnet32_restart(dev, CSR0_NORMAL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2428 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2429 | dev->trans_start = jiffies; |
| 2430 | netif_wake_queue(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2431 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2432 | spin_unlock_irqrestore(&lp->lock, flags); |
| 2433 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2434 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2435 | static int pcnet32_start_xmit(struct sk_buff *skb, struct net_device *dev) |
| 2436 | { |
| 2437 | struct pcnet32_private *lp = dev->priv; |
| 2438 | unsigned long ioaddr = dev->base_addr; |
| 2439 | u16 status; |
| 2440 | int entry; |
| 2441 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2442 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2443 | spin_lock_irqsave(&lp->lock, flags); |
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 | if (netif_msg_tx_queued(lp)) { |
| 2446 | printk(KERN_DEBUG |
| 2447 | "%s: pcnet32_start_xmit() called, csr0 %4.4x.\n", |
Don Fry | b368a3f | 2006-09-13 10:16:07 -0700 | [diff] [blame] | 2448 | dev->name, lp->a.read_csr(ioaddr, CSR0)); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2449 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2450 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2451 | /* Default status -- will not enable Successful-TxDone |
| 2452 | * interrupt when that option is available to us. |
| 2453 | */ |
| 2454 | status = 0x8300; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2455 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2456 | /* Fill in a Tx ring entry */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2457 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2458 | /* Mask to ring buffer boundary. */ |
| 2459 | entry = lp->cur_tx & lp->tx_mod_mask; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2460 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2461 | /* Caution: the write order is important here, set the status |
| 2462 | * with the "ownership" bits last. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2463 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2464 | lp->tx_ring[entry].length = le16_to_cpu(-skb->len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2465 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2466 | lp->tx_ring[entry].misc = 0x00000000; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2467 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2468 | lp->tx_skbuff[entry] = skb; |
| 2469 | lp->tx_dma_addr[entry] = |
| 2470 | pci_map_single(lp->pci_dev, skb->data, skb->len, PCI_DMA_TODEVICE); |
| 2471 | lp->tx_ring[entry].base = (u32) le32_to_cpu(lp->tx_dma_addr[entry]); |
| 2472 | wmb(); /* Make sure owner changes after all others are visible */ |
| 2473 | lp->tx_ring[entry].status = le16_to_cpu(status); |
| 2474 | |
| 2475 | lp->cur_tx++; |
| 2476 | lp->stats.tx_bytes += skb->len; |
| 2477 | |
| 2478 | /* Trigger an immediate send poll. */ |
Don Fry | b368a3f | 2006-09-13 10:16:07 -0700 | [diff] [blame] | 2479 | lp->a.write_csr(ioaddr, CSR0, CSR0_INTEN | CSR0_TXPOLL); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2480 | |
| 2481 | dev->trans_start = jiffies; |
| 2482 | |
| 2483 | if (lp->tx_ring[(entry + 1) & lp->tx_mod_mask].base != 0) { |
| 2484 | lp->tx_full = 1; |
| 2485 | netif_stop_queue(dev); |
| 2486 | } |
| 2487 | spin_unlock_irqrestore(&lp->lock, flags); |
| 2488 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2489 | } |
| 2490 | |
| 2491 | /* The PCNET32 interrupt handler. */ |
| 2492 | static irqreturn_t |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2493 | pcnet32_interrupt(int irq, void *dev_id, struct pt_regs *regs) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2494 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2495 | struct net_device *dev = dev_id; |
| 2496 | struct pcnet32_private *lp; |
| 2497 | unsigned long ioaddr; |
Don Fry | 5c99346 | 2006-09-13 10:15:43 -0700 | [diff] [blame] | 2498 | u16 csr0; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2499 | int boguscnt = max_interrupt_work; |
| 2500 | int must_restart; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2501 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2502 | if (!dev) { |
| 2503 | if (pcnet32_debug & NETIF_MSG_INTR) |
| 2504 | printk(KERN_DEBUG "%s(): irq %d for unknown device\n", |
| 2505 | __FUNCTION__, irq); |
| 2506 | return IRQ_NONE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2507 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2508 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2509 | ioaddr = dev->base_addr; |
| 2510 | lp = dev->priv; |
| 2511 | |
| 2512 | spin_lock(&lp->lock); |
| 2513 | |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame^] | 2514 | csr0 = lp->a.read_csr(ioaddr, CSR0); |
| 2515 | while ((csr0 & 0x8f00) && --boguscnt >= 0) { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2516 | if (csr0 == 0xffff) { |
| 2517 | break; /* PCMCIA remove happened */ |
| 2518 | } |
| 2519 | /* Acknowledge all of the current interrupt sources ASAP. */ |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame^] | 2520 | lp->a.write_csr(ioaddr, CSR0, csr0 & ~0x004f); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2521 | |
| 2522 | must_restart = 0; |
| 2523 | |
| 2524 | if (netif_msg_intr(lp)) |
| 2525 | printk(KERN_DEBUG |
| 2526 | "%s: interrupt csr0=%#2.2x new csr=%#2.2x.\n", |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame^] | 2527 | dev->name, csr0, lp->a.read_csr(ioaddr, CSR0)); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2528 | |
| 2529 | if (csr0 & 0x0400) /* Rx interrupt */ |
| 2530 | pcnet32_rx(dev); |
| 2531 | |
| 2532 | if (csr0 & 0x0200) { /* Tx-done interrupt */ |
Don Fry | 9691edd | 2006-09-13 10:16:21 -0700 | [diff] [blame] | 2533 | must_restart = pcnet32_tx(dev, csr0); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2534 | } |
| 2535 | |
| 2536 | /* Log misc errors. */ |
| 2537 | if (csr0 & 0x4000) |
| 2538 | lp->stats.tx_errors++; /* Tx babble. */ |
| 2539 | if (csr0 & 0x1000) { |
| 2540 | /* |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame^] | 2541 | * This happens when our receive ring is full. This |
| 2542 | * shouldn't be a problem as we will see normal rx |
| 2543 | * interrupts for the frames in the receive ring. But |
| 2544 | * there are some PCI chipsets (I can reproduce this |
| 2545 | * on SP3G with Intel saturn chipset) which have |
| 2546 | * sometimes problems and will fill up the receive |
| 2547 | * ring with error descriptors. In this situation we |
| 2548 | * don't get a rx interrupt, but a missed frame |
| 2549 | * interrupt sooner or later. So we try to clean up |
| 2550 | * our receive ring here. |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2551 | */ |
| 2552 | pcnet32_rx(dev); |
| 2553 | lp->stats.rx_errors++; /* Missed a Rx frame. */ |
| 2554 | } |
| 2555 | if (csr0 & 0x0800) { |
| 2556 | if (netif_msg_drv(lp)) |
| 2557 | printk(KERN_ERR |
| 2558 | "%s: Bus master arbitration failure, status %4.4x.\n", |
| 2559 | dev->name, csr0); |
| 2560 | /* unlike for the lance, there is no restart needed */ |
| 2561 | } |
| 2562 | |
| 2563 | if (must_restart) { |
| 2564 | /* reset the chip to clear the error condition, then restart */ |
| 2565 | lp->a.reset(ioaddr); |
Don Fry | b368a3f | 2006-09-13 10:16:07 -0700 | [diff] [blame] | 2566 | lp->a.write_csr(ioaddr, CSR4, 0x0915); /* auto tx pad */ |
| 2567 | pcnet32_restart(dev, CSR0_START); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2568 | netif_wake_queue(dev); |
| 2569 | } |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame^] | 2570 | csr0 = lp->a.read_csr(ioaddr, CSR0); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2571 | } |
| 2572 | |
| 2573 | /* Set interrupt enable. */ |
Don Fry | b368a3f | 2006-09-13 10:16:07 -0700 | [diff] [blame] | 2574 | lp->a.write_csr(ioaddr, CSR0, CSR0_INTEN); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2575 | |
| 2576 | if (netif_msg_intr(lp)) |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2577 | printk(KERN_DEBUG "%s: exiting interrupt, csr0=%#4.4x.\n", |
Don Fry | b368a3f | 2006-09-13 10:16:07 -0700 | [diff] [blame] | 2578 | dev->name, lp->a.read_csr(ioaddr, CSR0)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2579 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2580 | spin_unlock(&lp->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2581 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2582 | return IRQ_HANDLED; |
| 2583 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2584 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2585 | static int pcnet32_close(struct net_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2586 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2587 | unsigned long ioaddr = dev->base_addr; |
| 2588 | struct pcnet32_private *lp = dev->priv; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2589 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2590 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2591 | del_timer_sync(&lp->watchdog_timer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2592 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2593 | netif_stop_queue(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2594 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2595 | spin_lock_irqsave(&lp->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2596 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2597 | lp->stats.rx_missed_errors = lp->a.read_csr(ioaddr, 112); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2598 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2599 | if (netif_msg_ifdown(lp)) |
| 2600 | printk(KERN_DEBUG |
| 2601 | "%s: Shutting down ethercard, status was %2.2x.\n", |
Don Fry | b368a3f | 2006-09-13 10:16:07 -0700 | [diff] [blame] | 2602 | dev->name, lp->a.read_csr(ioaddr, CSR0)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2603 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2604 | /* 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] | 2605 | lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2606 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2607 | /* |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2608 | * Switch back to 16bit mode to avoid problems with dumb |
| 2609 | * DOS packet driver after a warm reboot |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2610 | */ |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2611 | lp->a.write_bcr(ioaddr, 20, 4); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2612 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2613 | spin_unlock_irqrestore(&lp->lock, flags); |
| 2614 | |
| 2615 | free_irq(dev->irq, dev); |
| 2616 | |
| 2617 | spin_lock_irqsave(&lp->lock, flags); |
| 2618 | |
Don Fry | ac5bfe4 | 2006-06-29 13:55:27 -0700 | [diff] [blame] | 2619 | pcnet32_purge_rx_ring(dev); |
| 2620 | pcnet32_purge_tx_ring(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2621 | |
| 2622 | spin_unlock_irqrestore(&lp->lock, flags); |
| 2623 | |
| 2624 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2625 | } |
| 2626 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2627 | static struct net_device_stats *pcnet32_get_stats(struct net_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2628 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2629 | struct pcnet32_private *lp = dev->priv; |
| 2630 | unsigned long ioaddr = dev->base_addr; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2631 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2632 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2633 | spin_lock_irqsave(&lp->lock, flags); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2634 | lp->stats.rx_missed_errors = lp->a.read_csr(ioaddr, 112); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2635 | spin_unlock_irqrestore(&lp->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2636 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2637 | return &lp->stats; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2638 | } |
| 2639 | |
| 2640 | /* taken from the sunlance driver, which it took from the depca driver */ |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2641 | static void pcnet32_load_multicast(struct net_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2642 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2643 | struct pcnet32_private *lp = dev->priv; |
| 2644 | volatile struct pcnet32_init_block *ib = &lp->init_block; |
| 2645 | volatile u16 *mcast_table = (u16 *) & ib->filter; |
| 2646 | struct dev_mc_list *dmi = dev->mc_list; |
Don Fry | df27f4a | 2006-06-29 13:55:02 -0700 | [diff] [blame] | 2647 | unsigned long ioaddr = dev->base_addr; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2648 | char *addrs; |
| 2649 | int i; |
| 2650 | u32 crc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2651 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2652 | /* set all multicast bits */ |
| 2653 | if (dev->flags & IFF_ALLMULTI) { |
| 2654 | ib->filter[0] = 0xffffffff; |
| 2655 | ib->filter[1] = 0xffffffff; |
Don Fry | df27f4a | 2006-06-29 13:55:02 -0700 | [diff] [blame] | 2656 | lp->a.write_csr(ioaddr, PCNET32_MC_FILTER, 0xffff); |
| 2657 | lp->a.write_csr(ioaddr, PCNET32_MC_FILTER+1, 0xffff); |
| 2658 | lp->a.write_csr(ioaddr, PCNET32_MC_FILTER+2, 0xffff); |
| 2659 | lp->a.write_csr(ioaddr, PCNET32_MC_FILTER+3, 0xffff); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2660 | return; |
| 2661 | } |
| 2662 | /* clear the multicast filter */ |
| 2663 | ib->filter[0] = 0; |
| 2664 | ib->filter[1] = 0; |
| 2665 | |
| 2666 | /* Add addresses */ |
| 2667 | for (i = 0; i < dev->mc_count; i++) { |
| 2668 | addrs = dmi->dmi_addr; |
| 2669 | dmi = dmi->next; |
| 2670 | |
| 2671 | /* multicast address? */ |
| 2672 | if (!(*addrs & 1)) |
| 2673 | continue; |
| 2674 | |
| 2675 | crc = ether_crc_le(6, addrs); |
| 2676 | crc = crc >> 26; |
| 2677 | mcast_table[crc >> 4] = |
| 2678 | le16_to_cpu(le16_to_cpu(mcast_table[crc >> 4]) | |
| 2679 | (1 << (crc & 0xf))); |
| 2680 | } |
Don Fry | df27f4a | 2006-06-29 13:55:02 -0700 | [diff] [blame] | 2681 | for (i = 0; i < 4; i++) |
| 2682 | lp->a.write_csr(ioaddr, PCNET32_MC_FILTER + i, |
| 2683 | le16_to_cpu(mcast_table[i])); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2684 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2685 | } |
| 2686 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2687 | /* |
| 2688 | * Set or clear the multicast filter for this adaptor. |
| 2689 | */ |
| 2690 | static void pcnet32_set_multicast_list(struct net_device *dev) |
| 2691 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2692 | unsigned long ioaddr = dev->base_addr, flags; |
| 2693 | struct pcnet32_private *lp = dev->priv; |
Don Fry | df27f4a | 2006-06-29 13:55:02 -0700 | [diff] [blame] | 2694 | int csr15, suspended; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2695 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2696 | spin_lock_irqsave(&lp->lock, flags); |
Don Fry | df27f4a | 2006-06-29 13:55:02 -0700 | [diff] [blame] | 2697 | suspended = pcnet32_suspend(dev, &flags, 0); |
| 2698 | csr15 = lp->a.read_csr(ioaddr, CSR15); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2699 | if (dev->flags & IFF_PROMISC) { |
| 2700 | /* Log any net taps. */ |
| 2701 | if (netif_msg_hw(lp)) |
| 2702 | printk(KERN_INFO "%s: Promiscuous mode enabled.\n", |
| 2703 | dev->name); |
| 2704 | lp->init_block.mode = |
| 2705 | le16_to_cpu(0x8000 | (lp->options & PCNET32_PORT_PORTSEL) << |
| 2706 | 7); |
Don Fry | df27f4a | 2006-06-29 13:55:02 -0700 | [diff] [blame] | 2707 | lp->a.write_csr(ioaddr, CSR15, csr15 | 0x8000); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2708 | } else { |
| 2709 | lp->init_block.mode = |
| 2710 | le16_to_cpu((lp->options & PCNET32_PORT_PORTSEL) << 7); |
Don Fry | df27f4a | 2006-06-29 13:55:02 -0700 | [diff] [blame] | 2711 | lp->a.write_csr(ioaddr, CSR15, csr15 & 0x7fff); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2712 | pcnet32_load_multicast(dev); |
| 2713 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2714 | |
Don Fry | df27f4a | 2006-06-29 13:55:02 -0700 | [diff] [blame] | 2715 | if (suspended) { |
| 2716 | int csr5; |
| 2717 | /* clear SUSPEND (SPND) - CSR5 bit 0 */ |
| 2718 | csr5 = lp->a.read_csr(ioaddr, CSR5); |
| 2719 | lp->a.write_csr(ioaddr, CSR5, csr5 & (~CSR5_SUSPEND)); |
Don Fry | b368a3f | 2006-09-13 10:16:07 -0700 | [diff] [blame] | 2720 | } else { |
Don Fry | df27f4a | 2006-06-29 13:55:02 -0700 | [diff] [blame] | 2721 | lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); |
| 2722 | pcnet32_restart(dev, CSR0_NORMAL); |
| 2723 | netif_wake_queue(dev); |
| 2724 | } |
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 | spin_unlock_irqrestore(&lp->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2727 | } |
| 2728 | |
| 2729 | /* This routine assumes that the lp->lock is held */ |
| 2730 | static int mdio_read(struct net_device *dev, int phy_id, int reg_num) |
| 2731 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2732 | struct pcnet32_private *lp = dev->priv; |
| 2733 | unsigned long ioaddr = dev->base_addr; |
| 2734 | u16 val_out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2735 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2736 | if (!lp->mii) |
| 2737 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2738 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2739 | lp->a.write_bcr(ioaddr, 33, ((phy_id & 0x1f) << 5) | (reg_num & 0x1f)); |
| 2740 | val_out = lp->a.read_bcr(ioaddr, 34); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2741 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2742 | return val_out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2743 | } |
| 2744 | |
| 2745 | /* This routine assumes that the lp->lock is held */ |
| 2746 | static void mdio_write(struct net_device *dev, int phy_id, int reg_num, int val) |
| 2747 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2748 | struct pcnet32_private *lp = dev->priv; |
| 2749 | unsigned long ioaddr = dev->base_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2750 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2751 | if (!lp->mii) |
| 2752 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2753 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2754 | lp->a.write_bcr(ioaddr, 33, ((phy_id & 0x1f) << 5) | (reg_num & 0x1f)); |
| 2755 | lp->a.write_bcr(ioaddr, 34, val); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2756 | } |
| 2757 | |
| 2758 | static int pcnet32_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) |
| 2759 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2760 | struct pcnet32_private *lp = dev->priv; |
| 2761 | int rc; |
| 2762 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2763 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2764 | /* SIOC[GS]MIIxxx ioctls */ |
| 2765 | if (lp->mii) { |
| 2766 | spin_lock_irqsave(&lp->lock, flags); |
| 2767 | rc = generic_mii_ioctl(&lp->mii_if, if_mii(rq), cmd, NULL); |
| 2768 | spin_unlock_irqrestore(&lp->lock, flags); |
| 2769 | } else { |
| 2770 | rc = -EOPNOTSUPP; |
| 2771 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2772 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2773 | return rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2774 | } |
| 2775 | |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 2776 | static int pcnet32_check_otherphy(struct net_device *dev) |
| 2777 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2778 | struct pcnet32_private *lp = dev->priv; |
| 2779 | struct mii_if_info mii = lp->mii_if; |
| 2780 | u16 bmcr; |
| 2781 | int i; |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 2782 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2783 | for (i = 0; i < PCNET32_MAX_PHYS; i++) { |
| 2784 | if (i == lp->mii_if.phy_id) |
| 2785 | continue; /* skip active phy */ |
| 2786 | if (lp->phymask & (1 << i)) { |
| 2787 | mii.phy_id = i; |
| 2788 | if (mii_link_ok(&mii)) { |
| 2789 | /* found PHY with active link */ |
| 2790 | if (netif_msg_link(lp)) |
| 2791 | printk(KERN_INFO |
| 2792 | "%s: Using PHY number %d.\n", |
| 2793 | dev->name, i); |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 2794 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2795 | /* isolate inactive phy */ |
| 2796 | bmcr = |
| 2797 | mdio_read(dev, lp->mii_if.phy_id, MII_BMCR); |
| 2798 | mdio_write(dev, lp->mii_if.phy_id, MII_BMCR, |
| 2799 | bmcr | BMCR_ISOLATE); |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 2800 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2801 | /* de-isolate new phy */ |
| 2802 | bmcr = mdio_read(dev, i, MII_BMCR); |
| 2803 | mdio_write(dev, i, MII_BMCR, |
| 2804 | bmcr & ~BMCR_ISOLATE); |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 2805 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2806 | /* set new phy address */ |
| 2807 | lp->mii_if.phy_id = i; |
| 2808 | return 1; |
| 2809 | } |
| 2810 | } |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 2811 | } |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2812 | return 0; |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 2813 | } |
| 2814 | |
| 2815 | /* |
| 2816 | * Show the status of the media. Similar to mii_check_media however it |
| 2817 | * correctly shows the link speed for all (tested) pcnet32 variants. |
| 2818 | * Devices with no mii just report link state without speed. |
| 2819 | * |
| 2820 | * Caller is assumed to hold and release the lp->lock. |
| 2821 | */ |
| 2822 | |
| 2823 | static void pcnet32_check_media(struct net_device *dev, int verbose) |
| 2824 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2825 | struct pcnet32_private *lp = dev->priv; |
| 2826 | int curr_link; |
| 2827 | int prev_link = netif_carrier_ok(dev) ? 1 : 0; |
| 2828 | u32 bcr9; |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 2829 | |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 2830 | if (lp->mii) { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2831 | curr_link = mii_link_ok(&lp->mii_if); |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 2832 | } else { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2833 | ulong ioaddr = dev->base_addr; /* card base I/O address */ |
| 2834 | curr_link = (lp->a.read_bcr(ioaddr, 4) != 0xc0); |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 2835 | } |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2836 | if (!curr_link) { |
| 2837 | if (prev_link || verbose) { |
| 2838 | netif_carrier_off(dev); |
| 2839 | if (netif_msg_link(lp)) |
| 2840 | printk(KERN_INFO "%s: link down\n", dev->name); |
| 2841 | } |
| 2842 | if (lp->phycount > 1) { |
| 2843 | curr_link = pcnet32_check_otherphy(dev); |
| 2844 | prev_link = 0; |
| 2845 | } |
| 2846 | } else if (verbose || !prev_link) { |
| 2847 | netif_carrier_on(dev); |
| 2848 | if (lp->mii) { |
| 2849 | if (netif_msg_link(lp)) { |
| 2850 | struct ethtool_cmd ecmd; |
| 2851 | mii_ethtool_gset(&lp->mii_if, &ecmd); |
| 2852 | printk(KERN_INFO |
| 2853 | "%s: link up, %sMbps, %s-duplex\n", |
| 2854 | dev->name, |
| 2855 | (ecmd.speed == SPEED_100) ? "100" : "10", |
| 2856 | (ecmd.duplex == |
| 2857 | DUPLEX_FULL) ? "full" : "half"); |
| 2858 | } |
| 2859 | bcr9 = lp->a.read_bcr(dev->base_addr, 9); |
| 2860 | if ((bcr9 & (1 << 0)) != lp->mii_if.full_duplex) { |
| 2861 | if (lp->mii_if.full_duplex) |
| 2862 | bcr9 |= (1 << 0); |
| 2863 | else |
| 2864 | bcr9 &= ~(1 << 0); |
| 2865 | lp->a.write_bcr(dev->base_addr, 9, bcr9); |
| 2866 | } |
| 2867 | } else { |
| 2868 | if (netif_msg_link(lp)) |
| 2869 | printk(KERN_INFO "%s: link up\n", dev->name); |
| 2870 | } |
| 2871 | } |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 2872 | } |
| 2873 | |
| 2874 | /* |
| 2875 | * Check for loss of link and link establishment. |
| 2876 | * Can not use mii_check_media because it does nothing if mode is forced. |
| 2877 | */ |
| 2878 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2879 | static void pcnet32_watchdog(struct net_device *dev) |
| 2880 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2881 | struct pcnet32_private *lp = dev->priv; |
| 2882 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2883 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2884 | /* Print the link status if it has changed */ |
| 2885 | spin_lock_irqsave(&lp->lock, flags); |
| 2886 | pcnet32_check_media(dev, 0); |
| 2887 | spin_unlock_irqrestore(&lp->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2888 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2889 | mod_timer(&(lp->watchdog_timer), PCNET32_WATCHDOG_TIMEOUT); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2890 | } |
| 2891 | |
| 2892 | static void __devexit pcnet32_remove_one(struct pci_dev *pdev) |
| 2893 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2894 | struct net_device *dev = pci_get_drvdata(pdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2895 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2896 | if (dev) { |
| 2897 | struct pcnet32_private *lp = dev->priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2898 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2899 | unregister_netdev(dev); |
| 2900 | pcnet32_free_ring(dev); |
| 2901 | release_region(dev->base_addr, PCNET32_TOTAL_SIZE); |
| 2902 | pci_free_consistent(lp->pci_dev, sizeof(*lp), lp, lp->dma_addr); |
| 2903 | free_netdev(dev); |
| 2904 | pci_disable_device(pdev); |
| 2905 | pci_set_drvdata(pdev, NULL); |
| 2906 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2907 | } |
| 2908 | |
| 2909 | static struct pci_driver pcnet32_driver = { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2910 | .name = DRV_NAME, |
| 2911 | .probe = pcnet32_probe_pci, |
| 2912 | .remove = __devexit_p(pcnet32_remove_one), |
| 2913 | .id_table = pcnet32_pci_tbl, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2914 | }; |
| 2915 | |
| 2916 | /* An additional parameter that may be passed in... */ |
| 2917 | static int debug = -1; |
| 2918 | static int tx_start_pt = -1; |
| 2919 | static int pcnet32_have_pci; |
| 2920 | |
| 2921 | module_param(debug, int, 0); |
| 2922 | MODULE_PARM_DESC(debug, DRV_NAME " debug level"); |
| 2923 | module_param(max_interrupt_work, int, 0); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2924 | MODULE_PARM_DESC(max_interrupt_work, |
| 2925 | DRV_NAME " maximum events handled per interrupt"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2926 | module_param(rx_copybreak, int, 0); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2927 | MODULE_PARM_DESC(rx_copybreak, |
| 2928 | DRV_NAME " copy breakpoint for copy-only-tiny-frames"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2929 | module_param(tx_start_pt, int, 0); |
| 2930 | MODULE_PARM_DESC(tx_start_pt, DRV_NAME " transmit start point (0-3)"); |
| 2931 | module_param(pcnet32vlb, int, 0); |
| 2932 | MODULE_PARM_DESC(pcnet32vlb, DRV_NAME " Vesa local bus (VLB) support (0/1)"); |
| 2933 | module_param_array(options, int, NULL, 0); |
| 2934 | MODULE_PARM_DESC(options, DRV_NAME " initial option setting(s) (0-15)"); |
| 2935 | module_param_array(full_duplex, int, NULL, 0); |
| 2936 | MODULE_PARM_DESC(full_duplex, DRV_NAME " full duplex setting(s) (1)"); |
| 2937 | /* Module Parameter for HomePNA cards added by Patrick Simmons, 2004 */ |
| 2938 | module_param_array(homepna, int, NULL, 0); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2939 | MODULE_PARM_DESC(homepna, |
| 2940 | DRV_NAME |
| 2941 | " mode for 79C978 cards (1 for HomePNA, 0 for Ethernet, default Ethernet"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2942 | |
| 2943 | MODULE_AUTHOR("Thomas Bogendoerfer"); |
| 2944 | MODULE_DESCRIPTION("Driver for PCnet32 and PCnetPCI based ethercards"); |
| 2945 | MODULE_LICENSE("GPL"); |
| 2946 | |
| 2947 | #define PCNET32_MSG_DEFAULT (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK) |
| 2948 | |
| 2949 | static int __init pcnet32_init_module(void) |
| 2950 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2951 | printk(KERN_INFO "%s", version); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2952 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2953 | pcnet32_debug = netif_msg_init(debug, PCNET32_MSG_DEFAULT); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2954 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2955 | if ((tx_start_pt >= 0) && (tx_start_pt <= 3)) |
| 2956 | tx_start = tx_start_pt; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2957 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2958 | /* find the PCI devices */ |
Jeff Garzik | 2991762 | 2006-08-19 17:48:59 -0400 | [diff] [blame] | 2959 | if (!pci_register_driver(&pcnet32_driver)) |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2960 | pcnet32_have_pci = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2961 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2962 | /* should we find any remaining VLbus devices ? */ |
| 2963 | if (pcnet32vlb) |
Don Fry | dcaf976 | 2006-06-29 13:52:29 -0700 | [diff] [blame] | 2964 | pcnet32_probe_vlbus(pcnet32_portlist); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2965 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2966 | if (cards_found && (pcnet32_debug & NETIF_MSG_PROBE)) |
| 2967 | printk(KERN_INFO PFX "%d cards_found.\n", cards_found); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2968 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2969 | return (pcnet32_have_pci + cards_found) ? 0 : -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2970 | } |
| 2971 | |
| 2972 | static void __exit pcnet32_cleanup_module(void) |
| 2973 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2974 | struct net_device *next_dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2975 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2976 | while (pcnet32_dev) { |
| 2977 | struct pcnet32_private *lp = pcnet32_dev->priv; |
| 2978 | next_dev = lp->next; |
| 2979 | unregister_netdev(pcnet32_dev); |
| 2980 | pcnet32_free_ring(pcnet32_dev); |
| 2981 | release_region(pcnet32_dev->base_addr, PCNET32_TOTAL_SIZE); |
| 2982 | pci_free_consistent(lp->pci_dev, sizeof(*lp), lp, lp->dma_addr); |
| 2983 | free_netdev(pcnet32_dev); |
| 2984 | pcnet32_dev = next_dev; |
| 2985 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2986 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2987 | if (pcnet32_have_pci) |
| 2988 | pci_unregister_driver(&pcnet32_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2989 | } |
| 2990 | |
| 2991 | module_init(pcnet32_init_module); |
| 2992 | module_exit(pcnet32_cleanup_module); |
| 2993 | |
| 2994 | /* |
| 2995 | * Local variables: |
| 2996 | * c-indent-level: 4 |
| 2997 | * tab-width: 8 |
| 2998 | * End: |
| 2999 | */ |