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 | |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 24 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
| 25 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 26 | #define DRV_NAME "pcnet32" |
Don Fry | 01935d7 | 2008-04-29 13:49:58 -0700 | [diff] [blame] | 27 | #define DRV_VERSION "1.35" |
| 28 | #define DRV_RELDATE "21.Apr.2008" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 29 | #define PFX DRV_NAME ": " |
| 30 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 31 | static const char *const version = |
| 32 | 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] | 33 | |
| 34 | #include <linux/module.h> |
| 35 | #include <linux/kernel.h> |
Alexey Dobriyan | d43c36d | 2009-10-07 17:09:06 +0400 | [diff] [blame] | 36 | #include <linux/sched.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 37 | #include <linux/string.h> |
| 38 | #include <linux/errno.h> |
| 39 | #include <linux/ioport.h> |
| 40 | #include <linux/slab.h> |
| 41 | #include <linux/interrupt.h> |
| 42 | #include <linux/pci.h> |
| 43 | #include <linux/delay.h> |
| 44 | #include <linux/init.h> |
| 45 | #include <linux/ethtool.h> |
| 46 | #include <linux/mii.h> |
| 47 | #include <linux/crc32.h> |
| 48 | #include <linux/netdevice.h> |
| 49 | #include <linux/etherdevice.h> |
Daniel Drake | 1f04493 | 2009-12-24 08:11:24 +0000 | [diff] [blame] | 50 | #include <linux/if_ether.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 51 | #include <linux/skbuff.h> |
| 52 | #include <linux/spinlock.h> |
| 53 | #include <linux/moduleparam.h> |
| 54 | #include <linux/bitops.h> |
Joe Perches | 9e3f806 | 2010-02-15 08:34:26 +0000 | [diff] [blame] | 55 | #include <linux/io.h> |
| 56 | #include <linux/uaccess.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 57 | |
| 58 | #include <asm/dma.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 59 | #include <asm/irq.h> |
| 60 | |
| 61 | /* |
| 62 | * PCI device identifiers for "new style" Linux PCI Device Drivers |
| 63 | */ |
Alexey Dobriyan | a3aa188 | 2010-01-07 11:58:11 +0000 | [diff] [blame] | 64 | static DEFINE_PCI_DEVICE_TABLE(pcnet32_pci_tbl) = { |
Don Fry | f2622a2 | 2006-06-29 13:52:58 -0700 | [diff] [blame] | 65 | { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_LANCE_HOME), }, |
| 66 | { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_LANCE), }, |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 67 | |
| 68 | /* |
| 69 | * Adapters that were sold with IBM's RS/6000 or pSeries hardware have |
| 70 | * the incorrect vendor id. |
| 71 | */ |
Don Fry | f2622a2 | 2006-06-29 13:52:58 -0700 | [diff] [blame] | 72 | { PCI_DEVICE(PCI_VENDOR_ID_TRIDENT, PCI_DEVICE_ID_AMD_LANCE), |
| 73 | .class = (PCI_CLASS_NETWORK_ETHERNET << 8), .class_mask = 0xffff00, }, |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 74 | |
| 75 | { } /* terminate list */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 76 | }; |
| 77 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 78 | MODULE_DEVICE_TABLE(pci, pcnet32_pci_tbl); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 79 | |
| 80 | static int cards_found; |
| 81 | |
| 82 | /* |
| 83 | * VLB I/O addresses |
| 84 | */ |
David S. Miller | 823dcd2 | 2011-08-20 10:39:12 -0700 | [diff] [blame] | 85 | static unsigned int pcnet32_portlist[] = |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 86 | { 0x300, 0x320, 0x340, 0x360, 0 }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 87 | |
Joe Perches | 9e3f806 | 2010-02-15 08:34:26 +0000 | [diff] [blame] | 88 | static int pcnet32_debug; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 89 | static int tx_start = 1; /* Mapping -- 0:20, 1:64, 2:128, 3:~220 (depends on chip vers) */ |
| 90 | static int pcnet32vlb; /* check for VLB cards ? */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 91 | |
| 92 | static struct net_device *pcnet32_dev; |
| 93 | |
| 94 | static int max_interrupt_work = 2; |
| 95 | static int rx_copybreak = 200; |
| 96 | |
| 97 | #define PCNET32_PORT_AUI 0x00 |
| 98 | #define PCNET32_PORT_10BT 0x01 |
| 99 | #define PCNET32_PORT_GPSI 0x02 |
| 100 | #define PCNET32_PORT_MII 0x03 |
| 101 | |
| 102 | #define PCNET32_PORT_PORTSEL 0x03 |
| 103 | #define PCNET32_PORT_ASEL 0x04 |
| 104 | #define PCNET32_PORT_100 0x40 |
| 105 | #define PCNET32_PORT_FD 0x80 |
| 106 | |
| 107 | #define PCNET32_DMA_MASK 0xffffffff |
| 108 | |
| 109 | #define PCNET32_WATCHDOG_TIMEOUT (jiffies + (2 * HZ)) |
| 110 | #define PCNET32_BLINK_TIMEOUT (jiffies + (HZ/4)) |
| 111 | |
| 112 | /* |
| 113 | * table to translate option values from tulip |
| 114 | * to internal options |
| 115 | */ |
Arjan van de Ven | f71e130 | 2006-03-03 21:33:57 -0500 | [diff] [blame] | 116 | static const unsigned char options_mapping[] = { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 117 | PCNET32_PORT_ASEL, /* 0 Auto-select */ |
| 118 | PCNET32_PORT_AUI, /* 1 BNC/AUI */ |
| 119 | PCNET32_PORT_AUI, /* 2 AUI/BNC */ |
| 120 | PCNET32_PORT_ASEL, /* 3 not supported */ |
| 121 | PCNET32_PORT_10BT | PCNET32_PORT_FD, /* 4 10baseT-FD */ |
| 122 | PCNET32_PORT_ASEL, /* 5 not supported */ |
| 123 | PCNET32_PORT_ASEL, /* 6 not supported */ |
| 124 | PCNET32_PORT_ASEL, /* 7 not supported */ |
| 125 | PCNET32_PORT_ASEL, /* 8 not supported */ |
| 126 | PCNET32_PORT_MII, /* 9 MII 10baseT */ |
| 127 | PCNET32_PORT_MII | PCNET32_PORT_FD, /* 10 MII 10baseT-FD */ |
| 128 | PCNET32_PORT_MII, /* 11 MII (autosel) */ |
| 129 | PCNET32_PORT_10BT, /* 12 10BaseT */ |
| 130 | PCNET32_PORT_MII | PCNET32_PORT_100, /* 13 MII 100BaseTx */ |
| 131 | /* 14 MII 100BaseTx-FD */ |
| 132 | PCNET32_PORT_MII | PCNET32_PORT_100 | PCNET32_PORT_FD, |
| 133 | PCNET32_PORT_ASEL /* 15 not supported */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 134 | }; |
| 135 | |
| 136 | static const char pcnet32_gstrings_test[][ETH_GSTRING_LEN] = { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 137 | "Loopback test (offline)" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 138 | }; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 139 | |
Alejandro Martinez Ruiz | 4c3616c | 2007-10-18 10:00:15 +0200 | [diff] [blame] | 140 | #define PCNET32_TEST_LEN ARRAY_SIZE(pcnet32_gstrings_test) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 141 | |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 142 | #define PCNET32_NUM_REGS 136 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 143 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 144 | #define MAX_UNITS 8 /* More are supported, limit only on options */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 145 | static int options[MAX_UNITS]; |
| 146 | static int full_duplex[MAX_UNITS]; |
| 147 | static int homepna[MAX_UNITS]; |
| 148 | |
| 149 | /* |
| 150 | * Theory of Operation |
| 151 | * |
| 152 | * This driver uses the same software structure as the normal lance |
| 153 | * driver. So look for a verbose description in lance.c. The differences |
| 154 | * to the normal lance driver is the use of the 32bit mode of PCnet32 |
| 155 | * and PCnetPCI chips. Because these chips are 32bit chips, there is no |
| 156 | * 16MB limitation and we don't need bounce buffers. |
| 157 | */ |
| 158 | |
| 159 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 160 | * Set the number of Tx and Rx buffers, using Log_2(# buffers). |
| 161 | * Reasonable default values are 4 Tx buffers, and 16 Rx buffers. |
| 162 | * That translates to 2 (4 == 2^^2) and 4 (16 == 2^^4). |
| 163 | */ |
| 164 | #ifndef PCNET32_LOG_TX_BUFFERS |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 165 | #define PCNET32_LOG_TX_BUFFERS 4 |
| 166 | #define PCNET32_LOG_RX_BUFFERS 5 |
| 167 | #define PCNET32_LOG_MAX_TX_BUFFERS 9 /* 2^9 == 512 */ |
| 168 | #define PCNET32_LOG_MAX_RX_BUFFERS 9 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 169 | #endif |
| 170 | |
| 171 | #define TX_RING_SIZE (1 << (PCNET32_LOG_TX_BUFFERS)) |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 172 | #define TX_MAX_RING_SIZE (1 << (PCNET32_LOG_MAX_TX_BUFFERS)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 173 | |
| 174 | #define RX_RING_SIZE (1 << (PCNET32_LOG_RX_BUFFERS)) |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 175 | #define RX_MAX_RING_SIZE (1 << (PCNET32_LOG_MAX_RX_BUFFERS)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 176 | |
Don Fry | 232c564 | 2008-02-08 07:32:26 -0800 | [diff] [blame] | 177 | #define PKT_BUF_SKB 1544 |
| 178 | /* actual buffer length after being aligned */ |
| 179 | #define PKT_BUF_SIZE (PKT_BUF_SKB - NET_IP_ALIGN) |
| 180 | /* chip wants twos complement of the (aligned) buffer length */ |
| 181 | #define NEG_BUF_SIZE (NET_IP_ALIGN - PKT_BUF_SKB) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 182 | |
| 183 | /* Offsets from base I/O address. */ |
| 184 | #define PCNET32_WIO_RDP 0x10 |
| 185 | #define PCNET32_WIO_RAP 0x12 |
| 186 | #define PCNET32_WIO_RESET 0x14 |
| 187 | #define PCNET32_WIO_BDP 0x16 |
| 188 | |
| 189 | #define PCNET32_DWIO_RDP 0x10 |
| 190 | #define PCNET32_DWIO_RAP 0x14 |
| 191 | #define PCNET32_DWIO_RESET 0x18 |
| 192 | #define PCNET32_DWIO_BDP 0x1C |
| 193 | |
| 194 | #define PCNET32_TOTAL_SIZE 0x20 |
| 195 | |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 196 | #define CSR0 0 |
| 197 | #define CSR0_INIT 0x1 |
| 198 | #define CSR0_START 0x2 |
| 199 | #define CSR0_STOP 0x4 |
| 200 | #define CSR0_TXPOLL 0x8 |
| 201 | #define CSR0_INTEN 0x40 |
| 202 | #define CSR0_IDON 0x0100 |
| 203 | #define CSR0_NORMAL (CSR0_START | CSR0_INTEN) |
| 204 | #define PCNET32_INIT_LOW 1 |
| 205 | #define PCNET32_INIT_HIGH 2 |
| 206 | #define CSR3 3 |
| 207 | #define CSR4 4 |
| 208 | #define CSR5 5 |
| 209 | #define CSR5_SUSPEND 0x0001 |
| 210 | #define CSR15 15 |
| 211 | #define PCNET32_MC_FILTER 8 |
| 212 | |
Don Fry | 8d91626 | 2006-08-22 10:22:37 -0700 | [diff] [blame] | 213 | #define PCNET32_79C970A 0x2621 |
| 214 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 215 | /* The PCNET32 Rx and Tx ring descriptors. */ |
| 216 | struct pcnet32_rx_head { |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 217 | __le32 base; |
| 218 | __le16 buf_length; /* two`s complement of length */ |
| 219 | __le16 status; |
| 220 | __le32 msg_length; |
| 221 | __le32 reserved; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 222 | }; |
| 223 | |
| 224 | struct pcnet32_tx_head { |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 225 | __le32 base; |
| 226 | __le16 length; /* two`s complement of length */ |
| 227 | __le16 status; |
| 228 | __le32 misc; |
| 229 | __le32 reserved; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 230 | }; |
| 231 | |
| 232 | /* The PCNET32 32-Bit initialization block, described in databook. */ |
| 233 | struct pcnet32_init_block { |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 234 | __le16 mode; |
| 235 | __le16 tlen_rlen; |
Jeff Garzik | 0b5bf22 | 2006-03-21 16:22:47 -0500 | [diff] [blame] | 236 | u8 phys_addr[6]; |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 237 | __le16 reserved; |
| 238 | __le32 filter[2]; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 239 | /* Receive and transmit ring base, along with extra bits. */ |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 240 | __le32 rx_ring; |
| 241 | __le32 tx_ring; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 242 | }; |
| 243 | |
| 244 | /* PCnet32 access functions */ |
| 245 | struct pcnet32_access { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 246 | u16 (*read_csr) (unsigned long, int); |
| 247 | void (*write_csr) (unsigned long, int, u16); |
| 248 | u16 (*read_bcr) (unsigned long, int); |
| 249 | void (*write_bcr) (unsigned long, int, u16); |
| 250 | u16 (*read_rap) (unsigned long); |
| 251 | void (*write_rap) (unsigned long, u16); |
| 252 | void (*reset) (unsigned long); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 253 | }; |
| 254 | |
| 255 | /* |
Hubert WS Lin | 7620992 | 2005-09-14 11:39:27 -0700 | [diff] [blame] | 256 | * The first field of pcnet32_private is read by the ethernet device |
| 257 | * so the structure should be allocated using pci_alloc_consistent(). |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 258 | */ |
| 259 | struct pcnet32_private { |
Don Fry | 6ecb766 | 2007-03-06 10:45:23 -0800 | [diff] [blame] | 260 | struct pcnet32_init_block *init_block; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 261 | /* 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] | 262 | struct pcnet32_rx_head *rx_ring; |
| 263 | struct pcnet32_tx_head *tx_ring; |
Don Fry | 6ecb766 | 2007-03-06 10:45:23 -0800 | [diff] [blame] | 264 | dma_addr_t init_dma_addr;/* DMA address of beginning of the init block, |
| 265 | returned by pci_alloc_consistent */ |
Jeff Garzik | 0b5bf22 | 2006-03-21 16:22:47 -0500 | [diff] [blame] | 266 | struct pci_dev *pci_dev; |
| 267 | const char *name; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 268 | /* The saved address of a sent-in-place packet/buffer, for skfree(). */ |
Jeff Garzik | 0b5bf22 | 2006-03-21 16:22:47 -0500 | [diff] [blame] | 269 | struct sk_buff **tx_skbuff; |
| 270 | struct sk_buff **rx_skbuff; |
| 271 | dma_addr_t *tx_dma_addr; |
| 272 | dma_addr_t *rx_dma_addr; |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 273 | const struct pcnet32_access *a; |
Jeff Garzik | 0b5bf22 | 2006-03-21 16:22:47 -0500 | [diff] [blame] | 274 | spinlock_t lock; /* Guard lock */ |
| 275 | unsigned int cur_rx, cur_tx; /* The next free ring entry */ |
| 276 | unsigned int rx_ring_size; /* current rx ring size */ |
| 277 | unsigned int tx_ring_size; /* current tx ring size */ |
| 278 | unsigned int rx_mod_mask; /* rx ring modular mask */ |
| 279 | unsigned int tx_mod_mask; /* tx ring modular mask */ |
| 280 | unsigned short rx_len_bits; |
| 281 | unsigned short tx_len_bits; |
| 282 | dma_addr_t rx_ring_dma_addr; |
| 283 | dma_addr_t tx_ring_dma_addr; |
| 284 | unsigned int dirty_rx, /* ring entries to be freed. */ |
| 285 | dirty_tx; |
| 286 | |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 287 | struct net_device *dev; |
| 288 | struct napi_struct napi; |
Jeff Garzik | 0b5bf22 | 2006-03-21 16:22:47 -0500 | [diff] [blame] | 289 | char tx_full; |
| 290 | char phycount; /* number of phys found */ |
| 291 | int options; |
| 292 | unsigned int shared_irq:1, /* shared irq possible */ |
| 293 | dxsuflo:1, /* disable transmit stop on uflo */ |
| 294 | mii:1; /* mii port available */ |
| 295 | struct net_device *next; |
| 296 | struct mii_if_info mii_if; |
| 297 | struct timer_list watchdog_timer; |
Jeff Garzik | 0b5bf22 | 2006-03-21 16:22:47 -0500 | [diff] [blame] | 298 | u32 msg_enable; /* debug message level */ |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 299 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 300 | /* each bit indicates an available PHY */ |
Jeff Garzik | 0b5bf22 | 2006-03-21 16:22:47 -0500 | [diff] [blame] | 301 | u32 phymask; |
Don Fry | 8d91626 | 2006-08-22 10:22:37 -0700 | [diff] [blame] | 302 | unsigned short chip_version; /* which variant this is */ |
stephen hemminger | 9871acf | 2011-04-04 11:06:41 +0000 | [diff] [blame] | 303 | |
| 304 | /* saved registers during ethtool blink */ |
| 305 | u16 save_regs[4]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 306 | }; |
| 307 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 308 | static int pcnet32_probe_pci(struct pci_dev *, const struct pci_device_id *); |
| 309 | static int pcnet32_probe1(unsigned long, int, struct pci_dev *); |
| 310 | static int pcnet32_open(struct net_device *); |
| 311 | static int pcnet32_init_ring(struct net_device *); |
Stephen Hemminger | 61357325 | 2009-08-31 19:50:58 +0000 | [diff] [blame] | 312 | static netdev_tx_t pcnet32_start_xmit(struct sk_buff *, |
| 313 | struct net_device *); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 314 | static void pcnet32_tx_timeout(struct net_device *dev); |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 315 | static irqreturn_t pcnet32_interrupt(int, void *); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 316 | static int pcnet32_close(struct net_device *); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 317 | static struct net_device_stats *pcnet32_get_stats(struct net_device *); |
| 318 | static void pcnet32_load_multicast(struct net_device *dev); |
| 319 | static void pcnet32_set_multicast_list(struct net_device *); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 320 | static int pcnet32_ioctl(struct net_device *, struct ifreq *, int); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 321 | static void pcnet32_watchdog(struct net_device *); |
| 322 | 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] | 323 | static void mdio_write(struct net_device *dev, int phy_id, int reg_num, |
| 324 | int val); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 325 | static void pcnet32_restart(struct net_device *dev, unsigned int csr0_bits); |
| 326 | static void pcnet32_ethtool_test(struct net_device *dev, |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 327 | struct ethtool_test *eth_test, u64 * data); |
| 328 | static int pcnet32_loopback_test(struct net_device *dev, uint64_t * data1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 329 | static int pcnet32_get_regs_len(struct net_device *dev); |
| 330 | 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] | 331 | void *ptr); |
Don Fry | 1bcd315 | 2005-04-29 14:51:17 -0700 | [diff] [blame] | 332 | static void pcnet32_purge_tx_ring(struct net_device *dev); |
Andrew Morton | b166cfb | 2008-05-14 16:20:14 -0700 | [diff] [blame] | 333 | static int pcnet32_alloc_ring(struct net_device *dev, const char *name); |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 334 | static void pcnet32_free_ring(struct net_device *dev); |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 335 | static void pcnet32_check_media(struct net_device *dev, int verbose); |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 336 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 337 | static u16 pcnet32_wio_read_csr(unsigned long addr, int index) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 338 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 339 | outw(index, addr + PCNET32_WIO_RAP); |
| 340 | return inw(addr + PCNET32_WIO_RDP); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 341 | } |
| 342 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 343 | 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] | 344 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 345 | outw(index, addr + PCNET32_WIO_RAP); |
| 346 | outw(val, addr + PCNET32_WIO_RDP); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 347 | } |
| 348 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 349 | static u16 pcnet32_wio_read_bcr(unsigned long addr, int index) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 350 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 351 | outw(index, addr + PCNET32_WIO_RAP); |
| 352 | return inw(addr + PCNET32_WIO_BDP); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 353 | } |
| 354 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 355 | 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] | 356 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 357 | outw(index, addr + PCNET32_WIO_RAP); |
| 358 | outw(val, addr + PCNET32_WIO_BDP); |
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 u16 pcnet32_wio_read_rap(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 | return inw(addr + PCNET32_WIO_RAP); |
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 void pcnet32_wio_write_rap(unsigned long addr, u16 val) |
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(val, addr + PCNET32_WIO_RAP); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 369 | } |
| 370 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 371 | static void pcnet32_wio_reset(unsigned long addr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 372 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 373 | inw(addr + PCNET32_WIO_RESET); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 374 | } |
| 375 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 376 | static int pcnet32_wio_check(unsigned long addr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 377 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 378 | outw(88, addr + PCNET32_WIO_RAP); |
Eric Dumazet | 807540b | 2010-09-23 05:40:09 +0000 | [diff] [blame] | 379 | return inw(addr + PCNET32_WIO_RAP) == 88; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 380 | } |
| 381 | |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 382 | static const struct pcnet32_access pcnet32_wio = { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 383 | .read_csr = pcnet32_wio_read_csr, |
| 384 | .write_csr = pcnet32_wio_write_csr, |
| 385 | .read_bcr = pcnet32_wio_read_bcr, |
| 386 | .write_bcr = pcnet32_wio_write_bcr, |
| 387 | .read_rap = pcnet32_wio_read_rap, |
| 388 | .write_rap = pcnet32_wio_write_rap, |
| 389 | .reset = pcnet32_wio_reset |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 390 | }; |
| 391 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 392 | static u16 pcnet32_dwio_read_csr(unsigned long addr, int index) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 393 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 394 | outl(index, addr + PCNET32_DWIO_RAP); |
Joe Perches | 9e3f806 | 2010-02-15 08:34:26 +0000 | [diff] [blame] | 395 | return inl(addr + PCNET32_DWIO_RDP) & 0xffff; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 396 | } |
| 397 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 398 | 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] | 399 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 400 | outl(index, addr + PCNET32_DWIO_RAP); |
| 401 | outl(val, addr + PCNET32_DWIO_RDP); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 402 | } |
| 403 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 404 | static u16 pcnet32_dwio_read_bcr(unsigned long addr, int index) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 405 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 406 | outl(index, addr + PCNET32_DWIO_RAP); |
Joe Perches | 9e3f806 | 2010-02-15 08:34:26 +0000 | [diff] [blame] | 407 | return inl(addr + PCNET32_DWIO_BDP) & 0xffff; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 408 | } |
| 409 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 410 | 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] | 411 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 412 | outl(index, addr + PCNET32_DWIO_RAP); |
| 413 | outl(val, addr + PCNET32_DWIO_BDP); |
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 u16 pcnet32_dwio_read_rap(unsigned long addr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 417 | { |
Joe Perches | 9e3f806 | 2010-02-15 08:34:26 +0000 | [diff] [blame] | 418 | return inl(addr + PCNET32_DWIO_RAP) & 0xffff; |
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 void pcnet32_dwio_write_rap(unsigned long addr, u16 val) |
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(val, addr + PCNET32_DWIO_RAP); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 424 | } |
| 425 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 426 | static void pcnet32_dwio_reset(unsigned long addr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 427 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 428 | inl(addr + PCNET32_DWIO_RESET); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 429 | } |
| 430 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 431 | static int pcnet32_dwio_check(unsigned long addr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 432 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 433 | outl(88, addr + PCNET32_DWIO_RAP); |
Eric Dumazet | 807540b | 2010-09-23 05:40:09 +0000 | [diff] [blame] | 434 | return (inl(addr + PCNET32_DWIO_RAP) & 0xffff) == 88; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 435 | } |
| 436 | |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 437 | static const struct pcnet32_access pcnet32_dwio = { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 438 | .read_csr = pcnet32_dwio_read_csr, |
| 439 | .write_csr = pcnet32_dwio_write_csr, |
| 440 | .read_bcr = pcnet32_dwio_read_bcr, |
| 441 | .write_bcr = pcnet32_dwio_write_bcr, |
| 442 | .read_rap = pcnet32_dwio_read_rap, |
| 443 | .write_rap = pcnet32_dwio_write_rap, |
| 444 | .reset = pcnet32_dwio_reset |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 445 | }; |
| 446 | |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 447 | static void pcnet32_netif_stop(struct net_device *dev) |
| 448 | { |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 449 | struct pcnet32_private *lp = netdev_priv(dev); |
Don Fry | 01935d7 | 2008-04-29 13:49:58 -0700 | [diff] [blame] | 450 | |
Eric Dumazet | 1ae5dc3 | 2010-05-10 05:01:31 -0700 | [diff] [blame] | 451 | dev->trans_start = jiffies; /* prevent tx timeout */ |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 452 | napi_disable(&lp->napi); |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 453 | netif_tx_disable(dev); |
| 454 | } |
| 455 | |
| 456 | static void pcnet32_netif_start(struct net_device *dev) |
| 457 | { |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 458 | struct pcnet32_private *lp = netdev_priv(dev); |
David S. Miller | d1d08d1 | 2008-01-07 20:53:33 -0800 | [diff] [blame] | 459 | ulong ioaddr = dev->base_addr; |
| 460 | u16 val; |
Don Fry | 01935d7 | 2008-04-29 13:49:58 -0700 | [diff] [blame] | 461 | |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 462 | netif_wake_queue(dev); |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 463 | val = lp->a->read_csr(ioaddr, CSR3); |
David S. Miller | d1d08d1 | 2008-01-07 20:53:33 -0800 | [diff] [blame] | 464 | val &= 0x00ff; |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 465 | lp->a->write_csr(ioaddr, CSR3, val); |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 466 | napi_enable(&lp->napi); |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 467 | } |
| 468 | |
| 469 | /* |
| 470 | * Allocate space for the new sized tx ring. |
| 471 | * Free old resources |
| 472 | * Save new resources. |
| 473 | * Any failure keeps old resources. |
| 474 | * Must be called with lp->lock held. |
| 475 | */ |
| 476 | static void pcnet32_realloc_tx_ring(struct net_device *dev, |
| 477 | struct pcnet32_private *lp, |
| 478 | unsigned int size) |
| 479 | { |
| 480 | dma_addr_t new_ring_dma_addr; |
| 481 | dma_addr_t *new_dma_addr_list; |
| 482 | struct pcnet32_tx_head *new_tx_ring; |
| 483 | struct sk_buff **new_skb_list; |
| 484 | |
| 485 | pcnet32_purge_tx_ring(dev); |
| 486 | |
| 487 | new_tx_ring = pci_alloc_consistent(lp->pci_dev, |
| 488 | sizeof(struct pcnet32_tx_head) * |
| 489 | (1 << size), |
| 490 | &new_ring_dma_addr); |
| 491 | if (new_tx_ring == NULL) { |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 492 | netif_err(lp, drv, dev, "Consistent memory allocation failed\n"); |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 493 | return; |
| 494 | } |
| 495 | memset(new_tx_ring, 0, sizeof(struct pcnet32_tx_head) * (1 << size)); |
| 496 | |
| 497 | new_dma_addr_list = kcalloc((1 << size), sizeof(dma_addr_t), |
| 498 | GFP_ATOMIC); |
| 499 | if (!new_dma_addr_list) { |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 500 | netif_err(lp, drv, dev, "Memory allocation failed\n"); |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 501 | goto free_new_tx_ring; |
| 502 | } |
| 503 | |
| 504 | new_skb_list = kcalloc((1 << size), sizeof(struct sk_buff *), |
| 505 | GFP_ATOMIC); |
| 506 | if (!new_skb_list) { |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 507 | netif_err(lp, drv, dev, "Memory allocation failed\n"); |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 508 | goto free_new_lists; |
| 509 | } |
| 510 | |
| 511 | kfree(lp->tx_skbuff); |
| 512 | kfree(lp->tx_dma_addr); |
| 513 | pci_free_consistent(lp->pci_dev, |
| 514 | sizeof(struct pcnet32_tx_head) * |
| 515 | lp->tx_ring_size, lp->tx_ring, |
| 516 | lp->tx_ring_dma_addr); |
| 517 | |
| 518 | lp->tx_ring_size = (1 << size); |
| 519 | lp->tx_mod_mask = lp->tx_ring_size - 1; |
| 520 | lp->tx_len_bits = (size << 12); |
| 521 | lp->tx_ring = new_tx_ring; |
| 522 | lp->tx_ring_dma_addr = new_ring_dma_addr; |
| 523 | lp->tx_dma_addr = new_dma_addr_list; |
| 524 | lp->tx_skbuff = new_skb_list; |
| 525 | return; |
| 526 | |
Joe Perches | 9e3f806 | 2010-02-15 08:34:26 +0000 | [diff] [blame] | 527 | free_new_lists: |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 528 | kfree(new_dma_addr_list); |
Joe Perches | 9e3f806 | 2010-02-15 08:34:26 +0000 | [diff] [blame] | 529 | free_new_tx_ring: |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 530 | pci_free_consistent(lp->pci_dev, |
| 531 | sizeof(struct pcnet32_tx_head) * |
| 532 | (1 << size), |
| 533 | new_tx_ring, |
| 534 | new_ring_dma_addr); |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 535 | } |
| 536 | |
| 537 | /* |
| 538 | * Allocate space for the new sized rx ring. |
| 539 | * Re-use old receive buffers. |
| 540 | * alloc extra buffers |
| 541 | * free unneeded buffers |
| 542 | * free unneeded buffers |
| 543 | * Save new resources. |
| 544 | * Any failure keeps old resources. |
| 545 | * Must be called with lp->lock held. |
| 546 | */ |
| 547 | static void pcnet32_realloc_rx_ring(struct net_device *dev, |
| 548 | struct pcnet32_private *lp, |
| 549 | unsigned int size) |
| 550 | { |
| 551 | dma_addr_t new_ring_dma_addr; |
| 552 | dma_addr_t *new_dma_addr_list; |
| 553 | struct pcnet32_rx_head *new_rx_ring; |
| 554 | struct sk_buff **new_skb_list; |
| 555 | int new, overlap; |
| 556 | |
| 557 | new_rx_ring = pci_alloc_consistent(lp->pci_dev, |
| 558 | sizeof(struct pcnet32_rx_head) * |
| 559 | (1 << size), |
| 560 | &new_ring_dma_addr); |
| 561 | if (new_rx_ring == NULL) { |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 562 | netif_err(lp, drv, dev, "Consistent memory allocation failed\n"); |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 563 | return; |
| 564 | } |
| 565 | memset(new_rx_ring, 0, sizeof(struct pcnet32_rx_head) * (1 << size)); |
| 566 | |
| 567 | new_dma_addr_list = kcalloc((1 << size), sizeof(dma_addr_t), |
| 568 | GFP_ATOMIC); |
| 569 | if (!new_dma_addr_list) { |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 570 | netif_err(lp, drv, dev, "Memory allocation failed\n"); |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 571 | goto free_new_rx_ring; |
| 572 | } |
| 573 | |
| 574 | new_skb_list = kcalloc((1 << size), sizeof(struct sk_buff *), |
| 575 | GFP_ATOMIC); |
| 576 | if (!new_skb_list) { |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 577 | netif_err(lp, drv, dev, "Memory allocation failed\n"); |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 578 | goto free_new_lists; |
| 579 | } |
| 580 | |
| 581 | /* first copy the current receive buffers */ |
| 582 | overlap = min(size, lp->rx_ring_size); |
| 583 | for (new = 0; new < overlap; new++) { |
| 584 | new_rx_ring[new] = lp->rx_ring[new]; |
| 585 | new_dma_addr_list[new] = lp->rx_dma_addr[new]; |
| 586 | new_skb_list[new] = lp->rx_skbuff[new]; |
| 587 | } |
| 588 | /* now allocate any new buffers needed */ |
Joe Perches | 9e3f806 | 2010-02-15 08:34:26 +0000 | [diff] [blame] | 589 | for (; new < size; new++) { |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 590 | struct sk_buff *rx_skbuff; |
Pradeep A Dalvi | 1d26643 | 2012-02-05 02:49:09 +0000 | [diff] [blame] | 591 | new_skb_list[new] = netdev_alloc_skb(dev, PKT_BUF_SKB); |
Joe Perches | 9e3f806 | 2010-02-15 08:34:26 +0000 | [diff] [blame] | 592 | rx_skbuff = new_skb_list[new]; |
| 593 | if (!rx_skbuff) { |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 594 | /* keep the original lists and buffers */ |
Pradeep A Dalvi | 1d26643 | 2012-02-05 02:49:09 +0000 | [diff] [blame] | 595 | netif_err(lp, drv, dev, "%s netdev_alloc_skb failed\n", |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 596 | __func__); |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 597 | goto free_all_new; |
| 598 | } |
Don Fry | 232c564 | 2008-02-08 07:32:26 -0800 | [diff] [blame] | 599 | skb_reserve(rx_skbuff, NET_IP_ALIGN); |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 600 | |
| 601 | new_dma_addr_list[new] = |
| 602 | pci_map_single(lp->pci_dev, rx_skbuff->data, |
Don Fry | 232c564 | 2008-02-08 07:32:26 -0800 | [diff] [blame] | 603 | PKT_BUF_SIZE, PCI_DMA_FROMDEVICE); |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 604 | new_rx_ring[new].base = cpu_to_le32(new_dma_addr_list[new]); |
Don Fry | 232c564 | 2008-02-08 07:32:26 -0800 | [diff] [blame] | 605 | new_rx_ring[new].buf_length = cpu_to_le16(NEG_BUF_SIZE); |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 606 | new_rx_ring[new].status = cpu_to_le16(0x8000); |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 607 | } |
| 608 | /* and free any unneeded buffers */ |
| 609 | for (; new < lp->rx_ring_size; new++) { |
| 610 | if (lp->rx_skbuff[new]) { |
| 611 | pci_unmap_single(lp->pci_dev, lp->rx_dma_addr[new], |
Don Fry | 232c564 | 2008-02-08 07:32:26 -0800 | [diff] [blame] | 612 | PKT_BUF_SIZE, PCI_DMA_FROMDEVICE); |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 613 | dev_kfree_skb(lp->rx_skbuff[new]); |
| 614 | } |
| 615 | } |
| 616 | |
| 617 | kfree(lp->rx_skbuff); |
| 618 | kfree(lp->rx_dma_addr); |
| 619 | pci_free_consistent(lp->pci_dev, |
| 620 | sizeof(struct pcnet32_rx_head) * |
| 621 | lp->rx_ring_size, lp->rx_ring, |
| 622 | lp->rx_ring_dma_addr); |
| 623 | |
| 624 | lp->rx_ring_size = (1 << size); |
| 625 | lp->rx_mod_mask = lp->rx_ring_size - 1; |
| 626 | lp->rx_len_bits = (size << 4); |
| 627 | lp->rx_ring = new_rx_ring; |
| 628 | lp->rx_ring_dma_addr = new_ring_dma_addr; |
| 629 | lp->rx_dma_addr = new_dma_addr_list; |
| 630 | lp->rx_skbuff = new_skb_list; |
| 631 | return; |
| 632 | |
Joe Perches | 9e3f806 | 2010-02-15 08:34:26 +0000 | [diff] [blame] | 633 | free_all_new: |
| 634 | while (--new >= lp->rx_ring_size) { |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 635 | if (new_skb_list[new]) { |
| 636 | pci_unmap_single(lp->pci_dev, new_dma_addr_list[new], |
Don Fry | 232c564 | 2008-02-08 07:32:26 -0800 | [diff] [blame] | 637 | PKT_BUF_SIZE, PCI_DMA_FROMDEVICE); |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 638 | dev_kfree_skb(new_skb_list[new]); |
| 639 | } |
| 640 | } |
| 641 | kfree(new_skb_list); |
Joe Perches | 9e3f806 | 2010-02-15 08:34:26 +0000 | [diff] [blame] | 642 | free_new_lists: |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 643 | kfree(new_dma_addr_list); |
Joe Perches | 9e3f806 | 2010-02-15 08:34:26 +0000 | [diff] [blame] | 644 | free_new_rx_ring: |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 645 | pci_free_consistent(lp->pci_dev, |
| 646 | sizeof(struct pcnet32_rx_head) * |
| 647 | (1 << size), |
| 648 | new_rx_ring, |
| 649 | new_ring_dma_addr); |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 650 | } |
| 651 | |
Don Fry | ac5bfe4 | 2006-06-29 13:55:27 -0700 | [diff] [blame] | 652 | static void pcnet32_purge_rx_ring(struct net_device *dev) |
| 653 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 654 | struct pcnet32_private *lp = netdev_priv(dev); |
Don Fry | ac5bfe4 | 2006-06-29 13:55:27 -0700 | [diff] [blame] | 655 | int i; |
| 656 | |
| 657 | /* free all allocated skbuffs */ |
| 658 | for (i = 0; i < lp->rx_ring_size; i++) { |
| 659 | lp->rx_ring[i].status = 0; /* CPU owns buffer */ |
| 660 | wmb(); /* Make sure adapter sees owner change */ |
| 661 | if (lp->rx_skbuff[i]) { |
| 662 | pci_unmap_single(lp->pci_dev, lp->rx_dma_addr[i], |
Don Fry | 232c564 | 2008-02-08 07:32:26 -0800 | [diff] [blame] | 663 | PKT_BUF_SIZE, PCI_DMA_FROMDEVICE); |
Don Fry | ac5bfe4 | 2006-06-29 13:55:27 -0700 | [diff] [blame] | 664 | dev_kfree_skb_any(lp->rx_skbuff[i]); |
| 665 | } |
| 666 | lp->rx_skbuff[i] = NULL; |
| 667 | lp->rx_dma_addr[i] = 0; |
| 668 | } |
| 669 | } |
| 670 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 671 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 672 | static void pcnet32_poll_controller(struct net_device *dev) |
| 673 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 674 | disable_irq(dev->irq); |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 675 | pcnet32_interrupt(0, dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 676 | enable_irq(dev->irq); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 677 | } |
| 678 | #endif |
| 679 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 680 | static int pcnet32_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
| 681 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 682 | struct pcnet32_private *lp = netdev_priv(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 683 | unsigned long flags; |
| 684 | int r = -EOPNOTSUPP; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 685 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 686 | if (lp->mii) { |
| 687 | spin_lock_irqsave(&lp->lock, flags); |
| 688 | mii_ethtool_gset(&lp->mii_if, cmd); |
| 689 | spin_unlock_irqrestore(&lp->lock, flags); |
| 690 | r = 0; |
| 691 | } |
| 692 | return r; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 693 | } |
| 694 | |
| 695 | static int pcnet32_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
| 696 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 697 | struct pcnet32_private *lp = netdev_priv(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 698 | unsigned long flags; |
| 699 | int r = -EOPNOTSUPP; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 700 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 701 | if (lp->mii) { |
| 702 | spin_lock_irqsave(&lp->lock, flags); |
| 703 | r = mii_ethtool_sset(&lp->mii_if, cmd); |
| 704 | spin_unlock_irqrestore(&lp->lock, flags); |
| 705 | } |
| 706 | return r; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 707 | } |
| 708 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 709 | static void pcnet32_get_drvinfo(struct net_device *dev, |
| 710 | struct ethtool_drvinfo *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 711 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 712 | struct pcnet32_private *lp = netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 713 | |
Rick Jones | 23020ab | 2011-11-09 09:58:07 +0000 | [diff] [blame] | 714 | strlcpy(info->driver, DRV_NAME, sizeof(info->driver)); |
| 715 | strlcpy(info->version, DRV_VERSION, sizeof(info->version)); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 716 | if (lp->pci_dev) |
Rick Jones | 23020ab | 2011-11-09 09:58:07 +0000 | [diff] [blame] | 717 | strlcpy(info->bus_info, pci_name(lp->pci_dev), |
| 718 | sizeof(info->bus_info)); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 719 | else |
Rick Jones | 23020ab | 2011-11-09 09:58:07 +0000 | [diff] [blame] | 720 | snprintf(info->bus_info, sizeof(info->bus_info), |
| 721 | "VLB 0x%lx", dev->base_addr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 722 | } |
| 723 | |
| 724 | static u32 pcnet32_get_link(struct net_device *dev) |
| 725 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 726 | struct pcnet32_private *lp = netdev_priv(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 727 | unsigned long flags; |
| 728 | int r; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 729 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 730 | spin_lock_irqsave(&lp->lock, flags); |
| 731 | if (lp->mii) { |
| 732 | r = mii_link_ok(&lp->mii_if); |
Don Fry | 8d91626 | 2006-08-22 10:22:37 -0700 | [diff] [blame] | 733 | } else if (lp->chip_version >= PCNET32_79C970A) { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 734 | ulong ioaddr = dev->base_addr; /* card base I/O address */ |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 735 | r = (lp->a->read_bcr(ioaddr, 4) != 0xc0); |
Don Fry | 8d91626 | 2006-08-22 10:22:37 -0700 | [diff] [blame] | 736 | } else { /* can not detect link on really old chips */ |
| 737 | r = 1; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 738 | } |
| 739 | spin_unlock_irqrestore(&lp->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 740 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 741 | return r; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 742 | } |
| 743 | |
| 744 | static u32 pcnet32_get_msglevel(struct net_device *dev) |
| 745 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 746 | struct pcnet32_private *lp = netdev_priv(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 747 | return lp->msg_enable; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 748 | } |
| 749 | |
| 750 | static void pcnet32_set_msglevel(struct net_device *dev, u32 value) |
| 751 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 752 | struct pcnet32_private *lp = netdev_priv(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 753 | lp->msg_enable = value; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 754 | } |
| 755 | |
| 756 | static int pcnet32_nway_reset(struct net_device *dev) |
| 757 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 758 | struct pcnet32_private *lp = netdev_priv(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 759 | unsigned long flags; |
| 760 | int r = -EOPNOTSUPP; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 761 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 762 | if (lp->mii) { |
| 763 | spin_lock_irqsave(&lp->lock, flags); |
| 764 | r = mii_nway_restart(&lp->mii_if); |
| 765 | spin_unlock_irqrestore(&lp->lock, flags); |
| 766 | } |
| 767 | return r; |
| 768 | } |
| 769 | |
| 770 | static void pcnet32_get_ringparam(struct net_device *dev, |
| 771 | struct ethtool_ringparam *ering) |
| 772 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 773 | struct pcnet32_private *lp = netdev_priv(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 774 | |
Don Fry | 6dcd60c | 2006-06-29 13:53:23 -0700 | [diff] [blame] | 775 | ering->tx_max_pending = TX_MAX_RING_SIZE; |
| 776 | ering->tx_pending = lp->tx_ring_size; |
| 777 | ering->rx_max_pending = RX_MAX_RING_SIZE; |
| 778 | ering->rx_pending = lp->rx_ring_size; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 779 | } |
| 780 | |
| 781 | static int pcnet32_set_ringparam(struct net_device *dev, |
| 782 | struct ethtool_ringparam *ering) |
| 783 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 784 | struct pcnet32_private *lp = netdev_priv(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 785 | unsigned long flags; |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 786 | unsigned int size; |
| 787 | ulong ioaddr = dev->base_addr; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 788 | int i; |
| 789 | |
| 790 | if (ering->rx_mini_pending || ering->rx_jumbo_pending) |
| 791 | return -EINVAL; |
| 792 | |
| 793 | if (netif_running(dev)) |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 794 | pcnet32_netif_stop(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 795 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 796 | spin_lock_irqsave(&lp->lock, flags); |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 797 | lp->a->write_csr(ioaddr, CSR0, CSR0_STOP); /* stop the chip */ |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 798 | |
| 799 | size = min(ering->tx_pending, (unsigned int)TX_MAX_RING_SIZE); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 800 | |
| 801 | /* set the minimum ring size to 4, to allow the loopback test to work |
| 802 | * unchanged. |
| 803 | */ |
| 804 | for (i = 2; i <= PCNET32_LOG_MAX_TX_BUFFERS; i++) { |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 805 | if (size <= (1 << i)) |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 806 | break; |
| 807 | } |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 808 | if ((1 << i) != lp->tx_ring_size) |
| 809 | pcnet32_realloc_tx_ring(dev, lp, i); |
Don Fry | b368a3f | 2006-09-13 10:16:07 -0700 | [diff] [blame] | 810 | |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 811 | size = min(ering->rx_pending, (unsigned int)RX_MAX_RING_SIZE); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 812 | for (i = 2; i <= PCNET32_LOG_MAX_RX_BUFFERS; i++) { |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 813 | if (size <= (1 << i)) |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 814 | break; |
| 815 | } |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 816 | if ((1 << i) != lp->rx_ring_size) |
| 817 | pcnet32_realloc_rx_ring(dev, lp, i); |
Don Fry | b368a3f | 2006-09-13 10:16:07 -0700 | [diff] [blame] | 818 | |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 819 | lp->napi.weight = lp->rx_ring_size / 2; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 820 | |
Don Fry | 06c8785 | 2006-06-29 13:54:38 -0700 | [diff] [blame] | 821 | if (netif_running(dev)) { |
| 822 | pcnet32_netif_start(dev); |
| 823 | pcnet32_restart(dev, CSR0_NORMAL); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 824 | } |
| 825 | |
Don Fry | a88c844 | 2005-11-01 12:04:33 -0800 | [diff] [blame] | 826 | spin_unlock_irqrestore(&lp->lock, flags); |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 827 | |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 828 | netif_info(lp, drv, dev, "Ring Param Settings: RX: %d, TX: %d\n", |
| 829 | lp->rx_ring_size, lp->tx_ring_size); |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 830 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 831 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 832 | } |
| 833 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 834 | static void pcnet32_get_strings(struct net_device *dev, u32 stringset, |
Joe Perches | 9e3f806 | 2010-02-15 08:34:26 +0000 | [diff] [blame] | 835 | u8 *data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 836 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 837 | memcpy(data, pcnet32_gstrings_test, sizeof(pcnet32_gstrings_test)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 838 | } |
| 839 | |
Jeff Garzik | b9f2c04 | 2007-10-03 18:07:32 -0700 | [diff] [blame] | 840 | static int pcnet32_get_sset_count(struct net_device *dev, int sset) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 841 | { |
Jeff Garzik | b9f2c04 | 2007-10-03 18:07:32 -0700 | [diff] [blame] | 842 | switch (sset) { |
| 843 | case ETH_SS_TEST: |
| 844 | return PCNET32_TEST_LEN; |
| 845 | default: |
| 846 | return -EOPNOTSUPP; |
| 847 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 848 | } |
| 849 | |
| 850 | static void pcnet32_ethtool_test(struct net_device *dev, |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 851 | struct ethtool_test *test, u64 * data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 852 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 853 | struct pcnet32_private *lp = netdev_priv(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 854 | int rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 855 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 856 | if (test->flags == ETH_TEST_FL_OFFLINE) { |
| 857 | rc = pcnet32_loopback_test(dev, data); |
| 858 | if (rc) { |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 859 | netif_printk(lp, hw, KERN_DEBUG, dev, |
| 860 | "Loopback test failed\n"); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 861 | test->flags |= ETH_TEST_FL_FAILED; |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 862 | } else |
| 863 | netif_printk(lp, hw, KERN_DEBUG, dev, |
| 864 | "Loopback test passed\n"); |
| 865 | } else |
| 866 | netif_printk(lp, hw, KERN_DEBUG, dev, |
| 867 | "No tests to run (specify 'Offline' on ethtool)\n"); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 868 | } /* end pcnet32_ethtool_test */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 869 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 870 | static int pcnet32_loopback_test(struct net_device *dev, uint64_t * data1) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 871 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 872 | struct pcnet32_private *lp = netdev_priv(dev); |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 873 | const struct pcnet32_access *a = lp->a; /* access to registers */ |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 874 | ulong ioaddr = dev->base_addr; /* card base I/O address */ |
| 875 | struct sk_buff *skb; /* sk buff */ |
| 876 | int x, i; /* counters */ |
| 877 | int numbuffs = 4; /* number of TX/RX buffers and descs */ |
| 878 | u16 status = 0x8300; /* TX ring status */ |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 879 | __le16 teststatus; /* test of ring status */ |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 880 | int rc; /* return code */ |
| 881 | int size; /* size of packets */ |
| 882 | unsigned char *packet; /* source packet data */ |
| 883 | static const int data_len = 60; /* length of source packets */ |
| 884 | unsigned long flags; |
| 885 | unsigned long ticks; |
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 | rc = 1; /* default to fail */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 888 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 889 | if (netif_running(dev)) |
Don Fry | 7de745e | 2006-09-13 10:16:53 -0700 | [diff] [blame] | 890 | pcnet32_netif_stop(dev); |
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 | spin_lock_irqsave(&lp->lock, flags); |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 893 | lp->a->write_csr(ioaddr, CSR0, CSR0_STOP); /* stop the chip */ |
Don Fry | ac5bfe4 | 2006-06-29 13:55:27 -0700 | [diff] [blame] | 894 | |
| 895 | 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] | 896 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 897 | /* Reset the PCNET32 */ |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 898 | lp->a->reset(ioaddr); |
| 899 | lp->a->write_csr(ioaddr, CSR4, 0x0915); /* auto tx pad */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 900 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 901 | /* switch pcnet32 to 32bit mode */ |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 902 | lp->a->write_bcr(ioaddr, 20, 2); |
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 | /* purge & init rings but don't actually restart */ |
| 905 | pcnet32_restart(dev, 0x0000); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 906 | |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 907 | lp->a->write_csr(ioaddr, CSR0, CSR0_STOP); /* Set STOP bit */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 908 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 909 | /* Initialize Transmit buffers. */ |
| 910 | size = data_len + 15; |
| 911 | for (x = 0; x < numbuffs; x++) { |
Pradeep A Dalvi | 1d26643 | 2012-02-05 02:49:09 +0000 | [diff] [blame] | 912 | skb = netdev_alloc_skb(dev, size); |
Joe Perches | 9e3f806 | 2010-02-15 08:34:26 +0000 | [diff] [blame] | 913 | if (!skb) { |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 914 | netif_printk(lp, hw, KERN_DEBUG, dev, |
| 915 | "Cannot allocate skb at line: %d!\n", |
| 916 | __LINE__); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 917 | goto clean_up; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 918 | } |
Joe Perches | 9e3f806 | 2010-02-15 08:34:26 +0000 | [diff] [blame] | 919 | packet = skb->data; |
| 920 | skb_put(skb, size); /* create space for data */ |
| 921 | lp->tx_skbuff[x] = skb; |
| 922 | lp->tx_ring[x].length = cpu_to_le16(-skb->len); |
| 923 | lp->tx_ring[x].misc = 0; |
| 924 | |
| 925 | /* put DA and SA into the skb */ |
| 926 | for (i = 0; i < 6; i++) |
| 927 | *packet++ = dev->dev_addr[i]; |
| 928 | for (i = 0; i < 6; i++) |
| 929 | *packet++ = dev->dev_addr[i]; |
| 930 | /* type */ |
| 931 | *packet++ = 0x08; |
| 932 | *packet++ = 0x06; |
| 933 | /* packet number */ |
| 934 | *packet++ = x; |
| 935 | /* fill packet with data */ |
| 936 | for (i = 0; i < data_len; i++) |
| 937 | *packet++ = i; |
| 938 | |
| 939 | lp->tx_dma_addr[x] = |
| 940 | pci_map_single(lp->pci_dev, skb->data, skb->len, |
| 941 | PCI_DMA_TODEVICE); |
| 942 | lp->tx_ring[x].base = cpu_to_le32(lp->tx_dma_addr[x]); |
| 943 | wmb(); /* Make sure owner changes after all others are visible */ |
| 944 | lp->tx_ring[x].status = cpu_to_le16(status); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 945 | } |
| 946 | |
Don Fry | ac5bfe4 | 2006-06-29 13:55:27 -0700 | [diff] [blame] | 947 | x = a->read_bcr(ioaddr, 32); /* set internal loopback in BCR32 */ |
| 948 | a->write_bcr(ioaddr, 32, x | 0x0002); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 949 | |
Don Fry | ac5bfe4 | 2006-06-29 13:55:27 -0700 | [diff] [blame] | 950 | /* set int loopback in CSR15 */ |
| 951 | x = a->read_csr(ioaddr, CSR15) & 0xfffc; |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 952 | lp->a->write_csr(ioaddr, CSR15, x | 0x0044); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 953 | |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 954 | teststatus = cpu_to_le16(0x8000); |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 955 | lp->a->write_csr(ioaddr, CSR0, CSR0_START); /* Set STRT bit */ |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 956 | |
| 957 | /* Check status of descriptors */ |
| 958 | for (x = 0; x < numbuffs; x++) { |
| 959 | ticks = 0; |
| 960 | rmb(); |
| 961 | while ((lp->rx_ring[x].status & teststatus) && (ticks < 200)) { |
| 962 | spin_unlock_irqrestore(&lp->lock, flags); |
Don Fry | ac5bfe4 | 2006-06-29 13:55:27 -0700 | [diff] [blame] | 963 | msleep(1); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 964 | spin_lock_irqsave(&lp->lock, flags); |
| 965 | rmb(); |
| 966 | ticks++; |
| 967 | } |
| 968 | if (ticks == 200) { |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 969 | netif_err(lp, hw, dev, "Desc %d failed to reset!\n", x); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 970 | break; |
| 971 | } |
| 972 | } |
| 973 | |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 974 | lp->a->write_csr(ioaddr, CSR0, CSR0_STOP); /* Set STOP bit */ |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 975 | wmb(); |
| 976 | if (netif_msg_hw(lp) && netif_msg_pktdata(lp)) { |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 977 | netdev_printk(KERN_DEBUG, dev, "RX loopback packets:\n"); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 978 | |
| 979 | for (x = 0; x < numbuffs; x++) { |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 980 | netdev_printk(KERN_DEBUG, dev, "Packet %d: ", x); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 981 | skb = lp->rx_skbuff[x]; |
Joe Perches | 9e3f806 | 2010-02-15 08:34:26 +0000 | [diff] [blame] | 982 | for (i = 0; i < size; i++) |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 983 | pr_cont(" %02x", *(skb->data + i)); |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 984 | pr_cont("\n"); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 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]) { |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 995 | netif_printk(lp, hw, KERN_DEBUG, dev, |
| 996 | "Error in compare! %2x - %02x %02x\n", |
| 997 | i, *(skb->data + i), packet[i]); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 998 | rc = 1; |
| 999 | break; |
| 1000 | } |
| 1001 | } |
| 1002 | x++; |
| 1003 | } |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1004 | |
Joe Perches | 9e3f806 | 2010-02-15 08:34:26 +0000 | [diff] [blame] | 1005 | clean_up: |
Don Fry | ac5bfe4 | 2006-06-29 13:55:27 -0700 | [diff] [blame] | 1006 | *data1 = rc; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1007 | pcnet32_purge_tx_ring(dev); |
Don Fry | ac5bfe4 | 2006-06-29 13:55:27 -0700 | [diff] [blame] | 1008 | |
| 1009 | x = a->read_csr(ioaddr, CSR15); |
| 1010 | a->write_csr(ioaddr, CSR15, (x & ~0x0044)); /* reset bits 6 and 2 */ |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1011 | |
| 1012 | x = a->read_bcr(ioaddr, 32); /* reset internal loopback */ |
Don Fry | ac5bfe4 | 2006-06-29 13:55:27 -0700 | [diff] [blame] | 1013 | a->write_bcr(ioaddr, 32, (x & ~0x0002)); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1014 | |
Don Fry | 7de745e | 2006-09-13 10:16:53 -0700 | [diff] [blame] | 1015 | if (netif_running(dev)) { |
| 1016 | pcnet32_netif_start(dev); |
| 1017 | pcnet32_restart(dev, CSR0_NORMAL); |
| 1018 | } else { |
| 1019 | pcnet32_purge_rx_ring(dev); |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 1020 | lp->a->write_bcr(ioaddr, 20, 4); /* return to 16bit mode */ |
Don Fry | 7de745e | 2006-09-13 10:16:53 -0700 | [diff] [blame] | 1021 | } |
| 1022 | spin_unlock_irqrestore(&lp->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1023 | |
Joe Perches | 9e3f806 | 2010-02-15 08:34:26 +0000 | [diff] [blame] | 1024 | return rc; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1025 | } /* end pcnet32_loopback_test */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1026 | |
stephen hemminger | 9871acf | 2011-04-04 11:06:41 +0000 | [diff] [blame] | 1027 | static int pcnet32_set_phys_id(struct net_device *dev, |
| 1028 | enum ethtool_phys_id_state state) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1029 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 1030 | struct pcnet32_private *lp = netdev_priv(dev); |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 1031 | const struct pcnet32_access *a = lp->a; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1032 | ulong ioaddr = dev->base_addr; |
| 1033 | unsigned long flags; |
| 1034 | int i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1035 | |
stephen hemminger | 9871acf | 2011-04-04 11:06:41 +0000 | [diff] [blame] | 1036 | switch (state) { |
| 1037 | case ETHTOOL_ID_ACTIVE: |
| 1038 | /* Save the current value of the bcrs */ |
| 1039 | spin_lock_irqsave(&lp->lock, flags); |
| 1040 | for (i = 4; i < 8; i++) |
| 1041 | lp->save_regs[i - 4] = a->read_bcr(ioaddr, i); |
| 1042 | spin_unlock_irqrestore(&lp->lock, flags); |
Allan, Bruce W | fce5592 | 2011-04-13 13:09:10 +0000 | [diff] [blame] | 1043 | return 2; /* cycle on/off twice per second */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1044 | |
stephen hemminger | 9871acf | 2011-04-04 11:06:41 +0000 | [diff] [blame] | 1045 | case ETHTOOL_ID_ON: |
| 1046 | case ETHTOOL_ID_OFF: |
| 1047 | /* Blink the led */ |
| 1048 | spin_lock_irqsave(&lp->lock, flags); |
| 1049 | for (i = 4; i < 8; i++) |
| 1050 | a->write_bcr(ioaddr, i, a->read_bcr(ioaddr, i) ^ 0x4000); |
| 1051 | spin_unlock_irqrestore(&lp->lock, flags); |
| 1052 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1053 | |
stephen hemminger | 9871acf | 2011-04-04 11:06:41 +0000 | [diff] [blame] | 1054 | case ETHTOOL_ID_INACTIVE: |
| 1055 | /* Restore the original value of the bcrs */ |
| 1056 | spin_lock_irqsave(&lp->lock, flags); |
| 1057 | for (i = 4; i < 8; i++) |
| 1058 | a->write_bcr(ioaddr, i, lp->save_regs[i - 4]); |
| 1059 | spin_unlock_irqrestore(&lp->lock, flags); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1060 | } |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1061 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1062 | } |
| 1063 | |
Don Fry | df27f4a | 2006-06-29 13:55:02 -0700 | [diff] [blame] | 1064 | /* |
| 1065 | * lp->lock must be held. |
| 1066 | */ |
| 1067 | static int pcnet32_suspend(struct net_device *dev, unsigned long *flags, |
| 1068 | int can_sleep) |
| 1069 | { |
| 1070 | int csr5; |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 1071 | struct pcnet32_private *lp = netdev_priv(dev); |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 1072 | const struct pcnet32_access *a = lp->a; |
Don Fry | df27f4a | 2006-06-29 13:55:02 -0700 | [diff] [blame] | 1073 | ulong ioaddr = dev->base_addr; |
| 1074 | int ticks; |
| 1075 | |
Don Fry | 8d91626 | 2006-08-22 10:22:37 -0700 | [diff] [blame] | 1076 | /* really old chips have to be stopped. */ |
| 1077 | if (lp->chip_version < PCNET32_79C970A) |
| 1078 | return 0; |
| 1079 | |
Don Fry | df27f4a | 2006-06-29 13:55:02 -0700 | [diff] [blame] | 1080 | /* set SUSPEND (SPND) - CSR5 bit 0 */ |
| 1081 | csr5 = a->read_csr(ioaddr, CSR5); |
| 1082 | a->write_csr(ioaddr, CSR5, csr5 | CSR5_SUSPEND); |
| 1083 | |
| 1084 | /* poll waiting for bit to be set */ |
| 1085 | ticks = 0; |
| 1086 | while (!(a->read_csr(ioaddr, CSR5) & CSR5_SUSPEND)) { |
| 1087 | spin_unlock_irqrestore(&lp->lock, *flags); |
| 1088 | if (can_sleep) |
| 1089 | msleep(1); |
| 1090 | else |
| 1091 | mdelay(1); |
| 1092 | spin_lock_irqsave(&lp->lock, *flags); |
| 1093 | ticks++; |
| 1094 | if (ticks > 200) { |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 1095 | netif_printk(lp, hw, KERN_DEBUG, dev, |
| 1096 | "Error getting into suspend!\n"); |
Don Fry | df27f4a | 2006-06-29 13:55:02 -0700 | [diff] [blame] | 1097 | return 0; |
| 1098 | } |
| 1099 | } |
| 1100 | return 1; |
| 1101 | } |
| 1102 | |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 1103 | /* |
| 1104 | * process one receive descriptor entry |
| 1105 | */ |
Don Fry | 9691edd | 2006-09-13 10:16:21 -0700 | [diff] [blame] | 1106 | |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 1107 | static void pcnet32_rx_entry(struct net_device *dev, |
| 1108 | struct pcnet32_private *lp, |
| 1109 | struct pcnet32_rx_head *rxp, |
| 1110 | int entry) |
| 1111 | { |
| 1112 | int status = (short)le16_to_cpu(rxp->status) >> 8; |
| 1113 | int rx_in_place = 0; |
| 1114 | struct sk_buff *skb; |
| 1115 | short pkt_len; |
| 1116 | |
| 1117 | if (status != 0x03) { /* There was an error. */ |
| 1118 | /* |
| 1119 | * There is a tricky error noted by John Murphy, |
| 1120 | * <murf@perftech.com> to Russ Nelson: Even with full-sized |
| 1121 | * buffers it's possible for a jabber packet to use two |
| 1122 | * buffers, with only the last correctly noting the error. |
| 1123 | */ |
| 1124 | if (status & 0x01) /* Only count a general error at the */ |
Don Fry | 4f1e5ba | 2007-10-17 17:06:19 -0700 | [diff] [blame] | 1125 | dev->stats.rx_errors++; /* end of a packet. */ |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 1126 | if (status & 0x20) |
Don Fry | 4f1e5ba | 2007-10-17 17:06:19 -0700 | [diff] [blame] | 1127 | dev->stats.rx_frame_errors++; |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 1128 | if (status & 0x10) |
Don Fry | 4f1e5ba | 2007-10-17 17:06:19 -0700 | [diff] [blame] | 1129 | dev->stats.rx_over_errors++; |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 1130 | if (status & 0x08) |
Don Fry | 4f1e5ba | 2007-10-17 17:06:19 -0700 | [diff] [blame] | 1131 | dev->stats.rx_crc_errors++; |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 1132 | if (status & 0x04) |
Don Fry | 4f1e5ba | 2007-10-17 17:06:19 -0700 | [diff] [blame] | 1133 | dev->stats.rx_fifo_errors++; |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 1134 | return; |
| 1135 | } |
| 1136 | |
| 1137 | pkt_len = (le32_to_cpu(rxp->msg_length) & 0xfff) - 4; |
| 1138 | |
| 1139 | /* Discard oversize frames. */ |
Don Fry | 232c564 | 2008-02-08 07:32:26 -0800 | [diff] [blame] | 1140 | if (unlikely(pkt_len > PKT_BUF_SIZE)) { |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 1141 | netif_err(lp, drv, dev, "Impossible packet size %d!\n", |
| 1142 | pkt_len); |
Don Fry | 4f1e5ba | 2007-10-17 17:06:19 -0700 | [diff] [blame] | 1143 | dev->stats.rx_errors++; |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 1144 | return; |
| 1145 | } |
| 1146 | if (pkt_len < 60) { |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 1147 | netif_err(lp, rx_err, dev, "Runt packet!\n"); |
Don Fry | 4f1e5ba | 2007-10-17 17:06:19 -0700 | [diff] [blame] | 1148 | dev->stats.rx_errors++; |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 1149 | return; |
| 1150 | } |
| 1151 | |
| 1152 | if (pkt_len > rx_copybreak) { |
| 1153 | struct sk_buff *newskb; |
| 1154 | |
Pradeep A Dalvi | 1d26643 | 2012-02-05 02:49:09 +0000 | [diff] [blame] | 1155 | newskb = netdev_alloc_skb(dev, PKT_BUF_SKB); |
Joe Perches | 9e3f806 | 2010-02-15 08:34:26 +0000 | [diff] [blame] | 1156 | if (newskb) { |
Don Fry | 232c564 | 2008-02-08 07:32:26 -0800 | [diff] [blame] | 1157 | skb_reserve(newskb, NET_IP_ALIGN); |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 1158 | skb = lp->rx_skbuff[entry]; |
| 1159 | pci_unmap_single(lp->pci_dev, |
| 1160 | lp->rx_dma_addr[entry], |
Don Fry | 232c564 | 2008-02-08 07:32:26 -0800 | [diff] [blame] | 1161 | PKT_BUF_SIZE, |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 1162 | PCI_DMA_FROMDEVICE); |
| 1163 | skb_put(skb, pkt_len); |
| 1164 | lp->rx_skbuff[entry] = newskb; |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 1165 | lp->rx_dma_addr[entry] = |
| 1166 | pci_map_single(lp->pci_dev, |
| 1167 | newskb->data, |
Don Fry | 232c564 | 2008-02-08 07:32:26 -0800 | [diff] [blame] | 1168 | PKT_BUF_SIZE, |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 1169 | PCI_DMA_FROMDEVICE); |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 1170 | rxp->base = cpu_to_le32(lp->rx_dma_addr[entry]); |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 1171 | rx_in_place = 1; |
| 1172 | } else |
| 1173 | skb = NULL; |
Joe Perches | 9e3f806 | 2010-02-15 08:34:26 +0000 | [diff] [blame] | 1174 | } else |
Pradeep A Dalvi | 1d26643 | 2012-02-05 02:49:09 +0000 | [diff] [blame] | 1175 | skb = netdev_alloc_skb(dev, pkt_len + NET_IP_ALIGN); |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 1176 | |
| 1177 | if (skb == NULL) { |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 1178 | netif_err(lp, drv, dev, "Memory squeeze, dropping packet\n"); |
Don Fry | 4f1e5ba | 2007-10-17 17:06:19 -0700 | [diff] [blame] | 1179 | dev->stats.rx_dropped++; |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 1180 | return; |
| 1181 | } |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 1182 | if (!rx_in_place) { |
Don Fry | 232c564 | 2008-02-08 07:32:26 -0800 | [diff] [blame] | 1183 | skb_reserve(skb, NET_IP_ALIGN); |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 1184 | skb_put(skb, pkt_len); /* Make room */ |
| 1185 | pci_dma_sync_single_for_cpu(lp->pci_dev, |
| 1186 | lp->rx_dma_addr[entry], |
Don Fry | b2cbbd8 | 2007-03-05 18:13:09 -0800 | [diff] [blame] | 1187 | pkt_len, |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 1188 | PCI_DMA_FROMDEVICE); |
David S. Miller | 8c7b7fa | 2007-07-10 22:08:12 -0700 | [diff] [blame] | 1189 | skb_copy_to_linear_data(skb, |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 1190 | (unsigned char *)(lp->rx_skbuff[entry]->data), |
David S. Miller | 8c7b7fa | 2007-07-10 22:08:12 -0700 | [diff] [blame] | 1191 | pkt_len); |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 1192 | pci_dma_sync_single_for_device(lp->pci_dev, |
| 1193 | lp->rx_dma_addr[entry], |
Don Fry | b2cbbd8 | 2007-03-05 18:13:09 -0800 | [diff] [blame] | 1194 | pkt_len, |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 1195 | PCI_DMA_FROMDEVICE); |
| 1196 | } |
Don Fry | 4f1e5ba | 2007-10-17 17:06:19 -0700 | [diff] [blame] | 1197 | dev->stats.rx_bytes += skb->len; |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 1198 | skb->protocol = eth_type_trans(skb, dev); |
Don Fry | 7de745e | 2006-09-13 10:16:53 -0700 | [diff] [blame] | 1199 | netif_receive_skb(skb); |
Don Fry | 4f1e5ba | 2007-10-17 17:06:19 -0700 | [diff] [blame] | 1200 | dev->stats.rx_packets++; |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 1201 | } |
| 1202 | |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 1203 | static int pcnet32_rx(struct net_device *dev, int budget) |
Don Fry | 9691edd | 2006-09-13 10:16:21 -0700 | [diff] [blame] | 1204 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 1205 | struct pcnet32_private *lp = netdev_priv(dev); |
Don Fry | 9691edd | 2006-09-13 10:16:21 -0700 | [diff] [blame] | 1206 | int entry = lp->cur_rx & lp->rx_mod_mask; |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 1207 | struct pcnet32_rx_head *rxp = &lp->rx_ring[entry]; |
| 1208 | int npackets = 0; |
Don Fry | 9691edd | 2006-09-13 10:16:21 -0700 | [diff] [blame] | 1209 | |
| 1210 | /* If we own the next entry, it's a new packet. Send it up. */ |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 1211 | while (npackets < budget && (short)le16_to_cpu(rxp->status) >= 0) { |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 1212 | pcnet32_rx_entry(dev, lp, rxp, entry); |
| 1213 | npackets += 1; |
Don Fry | 9691edd | 2006-09-13 10:16:21 -0700 | [diff] [blame] | 1214 | /* |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 1215 | * The docs say that the buffer length isn't touched, but Andrew |
| 1216 | * Boyd of QNX reports that some revs of the 79C965 clear it. |
Don Fry | 9691edd | 2006-09-13 10:16:21 -0700 | [diff] [blame] | 1217 | */ |
Don Fry | 232c564 | 2008-02-08 07:32:26 -0800 | [diff] [blame] | 1218 | rxp->buf_length = cpu_to_le16(NEG_BUF_SIZE); |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 1219 | wmb(); /* Make sure owner changes after others are visible */ |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 1220 | rxp->status = cpu_to_le16(0x8000); |
Don Fry | 9691edd | 2006-09-13 10:16:21 -0700 | [diff] [blame] | 1221 | entry = (++lp->cur_rx) & lp->rx_mod_mask; |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 1222 | rxp = &lp->rx_ring[entry]; |
Don Fry | 9691edd | 2006-09-13 10:16:21 -0700 | [diff] [blame] | 1223 | } |
| 1224 | |
Don Fry | 7de745e | 2006-09-13 10:16:53 -0700 | [diff] [blame] | 1225 | return npackets; |
Don Fry | 9691edd | 2006-09-13 10:16:21 -0700 | [diff] [blame] | 1226 | } |
| 1227 | |
Don Fry | 7de745e | 2006-09-13 10:16:53 -0700 | [diff] [blame] | 1228 | static int pcnet32_tx(struct net_device *dev) |
Don Fry | 9691edd | 2006-09-13 10:16:21 -0700 | [diff] [blame] | 1229 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 1230 | struct pcnet32_private *lp = netdev_priv(dev); |
Don Fry | 9691edd | 2006-09-13 10:16:21 -0700 | [diff] [blame] | 1231 | unsigned int dirty_tx = lp->dirty_tx; |
| 1232 | int delta; |
| 1233 | int must_restart = 0; |
| 1234 | |
| 1235 | while (dirty_tx != lp->cur_tx) { |
| 1236 | int entry = dirty_tx & lp->tx_mod_mask; |
| 1237 | int status = (short)le16_to_cpu(lp->tx_ring[entry].status); |
| 1238 | |
| 1239 | if (status < 0) |
| 1240 | break; /* It still hasn't been Txed */ |
| 1241 | |
| 1242 | lp->tx_ring[entry].base = 0; |
| 1243 | |
| 1244 | if (status & 0x4000) { |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 1245 | /* There was a major error, log it. */ |
Don Fry | 9691edd | 2006-09-13 10:16:21 -0700 | [diff] [blame] | 1246 | int err_status = le32_to_cpu(lp->tx_ring[entry].misc); |
Don Fry | 4f1e5ba | 2007-10-17 17:06:19 -0700 | [diff] [blame] | 1247 | dev->stats.tx_errors++; |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 1248 | netif_err(lp, tx_err, dev, |
| 1249 | "Tx error status=%04x err_status=%08x\n", |
| 1250 | status, err_status); |
Don Fry | 9691edd | 2006-09-13 10:16:21 -0700 | [diff] [blame] | 1251 | if (err_status & 0x04000000) |
Don Fry | 4f1e5ba | 2007-10-17 17:06:19 -0700 | [diff] [blame] | 1252 | dev->stats.tx_aborted_errors++; |
Don Fry | 9691edd | 2006-09-13 10:16:21 -0700 | [diff] [blame] | 1253 | if (err_status & 0x08000000) |
Don Fry | 4f1e5ba | 2007-10-17 17:06:19 -0700 | [diff] [blame] | 1254 | dev->stats.tx_carrier_errors++; |
Don Fry | 9691edd | 2006-09-13 10:16:21 -0700 | [diff] [blame] | 1255 | if (err_status & 0x10000000) |
Don Fry | 4f1e5ba | 2007-10-17 17:06:19 -0700 | [diff] [blame] | 1256 | dev->stats.tx_window_errors++; |
Don Fry | 9691edd | 2006-09-13 10:16:21 -0700 | [diff] [blame] | 1257 | #ifndef DO_DXSUFLO |
| 1258 | if (err_status & 0x40000000) { |
Don Fry | 4f1e5ba | 2007-10-17 17:06:19 -0700 | [diff] [blame] | 1259 | dev->stats.tx_fifo_errors++; |
Don Fry | 9691edd | 2006-09-13 10:16:21 -0700 | [diff] [blame] | 1260 | /* Ackk! On FIFO errors the Tx unit is turned off! */ |
| 1261 | /* Remove this verbosity later! */ |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 1262 | netif_err(lp, tx_err, dev, "Tx FIFO error!\n"); |
Don Fry | 9691edd | 2006-09-13 10:16:21 -0700 | [diff] [blame] | 1263 | must_restart = 1; |
| 1264 | } |
| 1265 | #else |
| 1266 | if (err_status & 0x40000000) { |
Don Fry | 4f1e5ba | 2007-10-17 17:06:19 -0700 | [diff] [blame] | 1267 | dev->stats.tx_fifo_errors++; |
Don Fry | 9691edd | 2006-09-13 10:16:21 -0700 | [diff] [blame] | 1268 | if (!lp->dxsuflo) { /* If controller doesn't recover ... */ |
| 1269 | /* Ackk! On FIFO errors the Tx unit is turned off! */ |
| 1270 | /* Remove this verbosity later! */ |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 1271 | netif_err(lp, tx_err, dev, "Tx FIFO error!\n"); |
Don Fry | 9691edd | 2006-09-13 10:16:21 -0700 | [diff] [blame] | 1272 | must_restart = 1; |
| 1273 | } |
| 1274 | } |
| 1275 | #endif |
| 1276 | } else { |
| 1277 | if (status & 0x1800) |
Don Fry | 4f1e5ba | 2007-10-17 17:06:19 -0700 | [diff] [blame] | 1278 | dev->stats.collisions++; |
| 1279 | dev->stats.tx_packets++; |
Don Fry | 9691edd | 2006-09-13 10:16:21 -0700 | [diff] [blame] | 1280 | } |
| 1281 | |
| 1282 | /* We must free the original skb */ |
| 1283 | if (lp->tx_skbuff[entry]) { |
| 1284 | pci_unmap_single(lp->pci_dev, |
| 1285 | lp->tx_dma_addr[entry], |
| 1286 | lp->tx_skbuff[entry]-> |
| 1287 | len, PCI_DMA_TODEVICE); |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 1288 | dev_kfree_skb_any(lp->tx_skbuff[entry]); |
Don Fry | 9691edd | 2006-09-13 10:16:21 -0700 | [diff] [blame] | 1289 | lp->tx_skbuff[entry] = NULL; |
| 1290 | lp->tx_dma_addr[entry] = 0; |
| 1291 | } |
| 1292 | dirty_tx++; |
| 1293 | } |
| 1294 | |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 1295 | 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] | 1296 | if (delta > lp->tx_ring_size) { |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 1297 | netif_err(lp, drv, dev, "out-of-sync dirty pointer, %d vs. %d, full=%d\n", |
| 1298 | dirty_tx, lp->cur_tx, lp->tx_full); |
Don Fry | 9691edd | 2006-09-13 10:16:21 -0700 | [diff] [blame] | 1299 | dirty_tx += lp->tx_ring_size; |
| 1300 | delta -= lp->tx_ring_size; |
| 1301 | } |
| 1302 | |
| 1303 | if (lp->tx_full && |
| 1304 | netif_queue_stopped(dev) && |
| 1305 | delta < lp->tx_ring_size - 2) { |
| 1306 | /* The ring is no longer full, clear tbusy. */ |
| 1307 | lp->tx_full = 0; |
| 1308 | netif_wake_queue(dev); |
| 1309 | } |
| 1310 | lp->dirty_tx = dirty_tx; |
| 1311 | |
| 1312 | return must_restart; |
| 1313 | } |
| 1314 | |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 1315 | static int pcnet32_poll(struct napi_struct *napi, int budget) |
Don Fry | 7de745e | 2006-09-13 10:16:53 -0700 | [diff] [blame] | 1316 | { |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 1317 | struct pcnet32_private *lp = container_of(napi, struct pcnet32_private, napi); |
| 1318 | struct net_device *dev = lp->dev; |
Don Fry | 7de745e | 2006-09-13 10:16:53 -0700 | [diff] [blame] | 1319 | unsigned long ioaddr = dev->base_addr; |
| 1320 | unsigned long flags; |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 1321 | int work_done; |
Don Fry | 7de745e | 2006-09-13 10:16:53 -0700 | [diff] [blame] | 1322 | u16 val; |
| 1323 | |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 1324 | work_done = pcnet32_rx(dev, budget); |
Don Fry | 7de745e | 2006-09-13 10:16:53 -0700 | [diff] [blame] | 1325 | |
| 1326 | spin_lock_irqsave(&lp->lock, flags); |
| 1327 | if (pcnet32_tx(dev)) { |
| 1328 | /* reset the chip to clear the error condition, then restart */ |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 1329 | lp->a->reset(ioaddr); |
| 1330 | lp->a->write_csr(ioaddr, CSR4, 0x0915); /* auto tx pad */ |
Don Fry | 7de745e | 2006-09-13 10:16:53 -0700 | [diff] [blame] | 1331 | pcnet32_restart(dev, CSR0_START); |
| 1332 | netif_wake_queue(dev); |
| 1333 | } |
| 1334 | spin_unlock_irqrestore(&lp->lock, flags); |
| 1335 | |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 1336 | if (work_done < budget) { |
| 1337 | spin_lock_irqsave(&lp->lock, flags); |
Don Fry | 7de745e | 2006-09-13 10:16:53 -0700 | [diff] [blame] | 1338 | |
Ben Hutchings | 288379f | 2009-01-19 16:43:59 -0800 | [diff] [blame] | 1339 | __napi_complete(napi); |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 1340 | |
| 1341 | /* clear interrupt masks */ |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 1342 | val = lp->a->read_csr(ioaddr, CSR3); |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 1343 | val &= 0x00ff; |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 1344 | lp->a->write_csr(ioaddr, CSR3, val); |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 1345 | |
| 1346 | /* Set interrupt enable. */ |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 1347 | lp->a->write_csr(ioaddr, CSR0, CSR0_INTEN); |
John Dykstra | ce105a0 | 2009-04-29 17:22:30 -0700 | [diff] [blame] | 1348 | |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 1349 | spin_unlock_irqrestore(&lp->lock, flags); |
Don Fry | 7de745e | 2006-09-13 10:16:53 -0700 | [diff] [blame] | 1350 | } |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 1351 | return work_done; |
Don Fry | 7de745e | 2006-09-13 10:16:53 -0700 | [diff] [blame] | 1352 | } |
Don Fry | 7de745e | 2006-09-13 10:16:53 -0700 | [diff] [blame] | 1353 | |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 1354 | #define PCNET32_REGS_PER_PHY 32 |
| 1355 | #define PCNET32_MAX_PHYS 32 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1356 | static int pcnet32_get_regs_len(struct net_device *dev) |
| 1357 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 1358 | struct pcnet32_private *lp = netdev_priv(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1359 | int j = lp->phycount * PCNET32_REGS_PER_PHY; |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 1360 | |
Joe Perches | 9e3f806 | 2010-02-15 08:34:26 +0000 | [diff] [blame] | 1361 | return (PCNET32_NUM_REGS + j) * sizeof(u16); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1362 | } |
| 1363 | |
| 1364 | 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] | 1365 | void *ptr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1366 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1367 | int i, csr0; |
| 1368 | u16 *buff = ptr; |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 1369 | struct pcnet32_private *lp = netdev_priv(dev); |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 1370 | const struct pcnet32_access *a = lp->a; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1371 | ulong ioaddr = dev->base_addr; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1372 | unsigned long flags; |
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 | spin_lock_irqsave(&lp->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1375 | |
Don Fry | df27f4a | 2006-06-29 13:55:02 -0700 | [diff] [blame] | 1376 | csr0 = a->read_csr(ioaddr, CSR0); |
| 1377 | if (!(csr0 & CSR0_STOP)) /* If not stopped */ |
| 1378 | pcnet32_suspend(dev, &flags, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1379 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1380 | /* read address PROM */ |
| 1381 | for (i = 0; i < 16; i += 2) |
| 1382 | *buff++ = inw(ioaddr + i); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1383 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1384 | /* read control and status registers */ |
Joe Perches | 9e3f806 | 2010-02-15 08:34:26 +0000 | [diff] [blame] | 1385 | for (i = 0; i < 90; i++) |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1386 | *buff++ = a->read_csr(ioaddr, i); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1387 | |
| 1388 | *buff++ = a->read_csr(ioaddr, 112); |
| 1389 | *buff++ = a->read_csr(ioaddr, 114); |
| 1390 | |
| 1391 | /* read bus configuration registers */ |
Joe Perches | 9e3f806 | 2010-02-15 08:34:26 +0000 | [diff] [blame] | 1392 | for (i = 0; i < 30; i++) |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1393 | *buff++ = a->read_bcr(ioaddr, i); |
Joe Perches | 9e3f806 | 2010-02-15 08:34:26 +0000 | [diff] [blame] | 1394 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1395 | *buff++ = 0; /* skip bcr30 so as not to hang 79C976 */ |
Joe Perches | 9e3f806 | 2010-02-15 08:34:26 +0000 | [diff] [blame] | 1396 | |
| 1397 | for (i = 31; i < 36; i++) |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1398 | *buff++ = a->read_bcr(ioaddr, i); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1399 | |
| 1400 | /* read mii phy registers */ |
| 1401 | if (lp->mii) { |
| 1402 | int j; |
| 1403 | for (j = 0; j < PCNET32_MAX_PHYS; j++) { |
| 1404 | if (lp->phymask & (1 << j)) { |
| 1405 | for (i = 0; i < PCNET32_REGS_PER_PHY; i++) { |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 1406 | lp->a->write_bcr(ioaddr, 33, |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1407 | (j << 5) | i); |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 1408 | *buff++ = lp->a->read_bcr(ioaddr, 34); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1409 | } |
| 1410 | } |
| 1411 | } |
| 1412 | } |
| 1413 | |
Don Fry | df27f4a | 2006-06-29 13:55:02 -0700 | [diff] [blame] | 1414 | if (!(csr0 & CSR0_STOP)) { /* If not stopped */ |
| 1415 | int csr5; |
| 1416 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1417 | /* clear SUSPEND (SPND) - CSR5 bit 0 */ |
Don Fry | df27f4a | 2006-06-29 13:55:02 -0700 | [diff] [blame] | 1418 | csr5 = a->read_csr(ioaddr, CSR5); |
| 1419 | a->write_csr(ioaddr, CSR5, csr5 & (~CSR5_SUSPEND)); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1420 | } |
| 1421 | |
| 1422 | spin_unlock_irqrestore(&lp->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1423 | } |
| 1424 | |
Jeff Garzik | 7282d49 | 2006-09-13 14:30:00 -0400 | [diff] [blame] | 1425 | static const struct ethtool_ops pcnet32_ethtool_ops = { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1426 | .get_settings = pcnet32_get_settings, |
| 1427 | .set_settings = pcnet32_set_settings, |
| 1428 | .get_drvinfo = pcnet32_get_drvinfo, |
| 1429 | .get_msglevel = pcnet32_get_msglevel, |
| 1430 | .set_msglevel = pcnet32_set_msglevel, |
| 1431 | .nway_reset = pcnet32_nway_reset, |
| 1432 | .get_link = pcnet32_get_link, |
| 1433 | .get_ringparam = pcnet32_get_ringparam, |
| 1434 | .set_ringparam = pcnet32_set_ringparam, |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1435 | .get_strings = pcnet32_get_strings, |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1436 | .self_test = pcnet32_ethtool_test, |
stephen hemminger | 9871acf | 2011-04-04 11:06:41 +0000 | [diff] [blame] | 1437 | .set_phys_id = pcnet32_set_phys_id, |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1438 | .get_regs_len = pcnet32_get_regs_len, |
| 1439 | .get_regs = pcnet32_get_regs, |
Jeff Garzik | b9f2c04 | 2007-10-03 18:07:32 -0700 | [diff] [blame] | 1440 | .get_sset_count = pcnet32_get_sset_count, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1441 | }; |
| 1442 | |
| 1443 | /* only probes for non-PCI devices, the rest are handled by |
| 1444 | * pci_register_driver via pcnet32_probe_pci */ |
| 1445 | |
Don Fry | dcaf976 | 2006-06-29 13:52:29 -0700 | [diff] [blame] | 1446 | static void __devinit pcnet32_probe_vlbus(unsigned int *pcnet32_portlist) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1447 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1448 | unsigned int *port, ioaddr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1449 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1450 | /* search for PCnet32 VLB cards at known addresses */ |
| 1451 | for (port = pcnet32_portlist; (ioaddr = *port); port++) { |
| 1452 | if (request_region |
| 1453 | (ioaddr, PCNET32_TOTAL_SIZE, "pcnet32_probe_vlbus")) { |
| 1454 | /* check if there is really a pcnet chip on that ioaddr */ |
Joe Perches | 8e95a20 | 2009-12-03 07:58:21 +0000 | [diff] [blame] | 1455 | if ((inb(ioaddr + 14) == 0x57) && |
| 1456 | (inb(ioaddr + 15) == 0x57)) { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1457 | pcnet32_probe1(ioaddr, 0, NULL); |
| 1458 | } else { |
| 1459 | release_region(ioaddr, PCNET32_TOTAL_SIZE); |
| 1460 | } |
| 1461 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1462 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1463 | } |
| 1464 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1465 | static int __devinit |
| 1466 | pcnet32_probe_pci(struct pci_dev *pdev, const struct pci_device_id *ent) |
| 1467 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1468 | unsigned long ioaddr; |
| 1469 | int err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1470 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1471 | err = pci_enable_device(pdev); |
| 1472 | if (err < 0) { |
| 1473 | if (pcnet32_debug & NETIF_MSG_PROBE) |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 1474 | pr_err("failed to enable device -- err=%d\n", err); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1475 | return err; |
| 1476 | } |
| 1477 | pci_set_master(pdev); |
| 1478 | |
| 1479 | ioaddr = pci_resource_start(pdev, 0); |
| 1480 | if (!ioaddr) { |
| 1481 | if (pcnet32_debug & NETIF_MSG_PROBE) |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 1482 | pr_err("card has no PCI IO resources, aborting\n"); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1483 | return -ENODEV; |
| 1484 | } |
| 1485 | |
| 1486 | if (!pci_dma_supported(pdev, PCNET32_DMA_MASK)) { |
| 1487 | if (pcnet32_debug & NETIF_MSG_PROBE) |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 1488 | pr_err("architecture does not support 32bit PCI busmaster DMA\n"); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1489 | return -ENODEV; |
| 1490 | } |
Joe Perches | 9e3f806 | 2010-02-15 08:34:26 +0000 | [diff] [blame] | 1491 | if (!request_region(ioaddr, PCNET32_TOTAL_SIZE, "pcnet32_probe_pci")) { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1492 | if (pcnet32_debug & NETIF_MSG_PROBE) |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 1493 | pr_err("io address range already allocated\n"); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1494 | return -EBUSY; |
| 1495 | } |
| 1496 | |
| 1497 | err = pcnet32_probe1(ioaddr, 1, pdev); |
Joe Perches | 9e3f806 | 2010-02-15 08:34:26 +0000 | [diff] [blame] | 1498 | if (err < 0) |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1499 | pci_disable_device(pdev); |
Joe Perches | 9e3f806 | 2010-02-15 08:34:26 +0000 | [diff] [blame] | 1500 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1501 | return err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1502 | } |
| 1503 | |
Stephen Hemminger | 3bc124d | 2009-01-07 17:29:16 -0800 | [diff] [blame] | 1504 | static const struct net_device_ops pcnet32_netdev_ops = { |
| 1505 | .ndo_open = pcnet32_open, |
| 1506 | .ndo_stop = pcnet32_close, |
| 1507 | .ndo_start_xmit = pcnet32_start_xmit, |
| 1508 | .ndo_tx_timeout = pcnet32_tx_timeout, |
| 1509 | .ndo_get_stats = pcnet32_get_stats, |
Jiri Pirko | afc4b13 | 2011-08-16 06:29:01 +0000 | [diff] [blame] | 1510 | .ndo_set_rx_mode = pcnet32_set_multicast_list, |
Stephen Hemminger | 3bc124d | 2009-01-07 17:29:16 -0800 | [diff] [blame] | 1511 | .ndo_do_ioctl = pcnet32_ioctl, |
| 1512 | .ndo_change_mtu = eth_change_mtu, |
| 1513 | .ndo_set_mac_address = eth_mac_addr, |
| 1514 | .ndo_validate_addr = eth_validate_addr, |
| 1515 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 1516 | .ndo_poll_controller = pcnet32_poll_controller, |
| 1517 | #endif |
| 1518 | }; |
| 1519 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1520 | /* pcnet32_probe1 |
| 1521 | * Called from both pcnet32_probe_vlbus and pcnet_probe_pci. |
| 1522 | * pdev will be NULL when called from pcnet32_probe_vlbus. |
| 1523 | */ |
| 1524 | static int __devinit |
| 1525 | pcnet32_probe1(unsigned long ioaddr, int shared, struct pci_dev *pdev) |
| 1526 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1527 | struct pcnet32_private *lp; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1528 | int i, media; |
| 1529 | int fdx, mii, fset, dxsuflo; |
| 1530 | int chip_version; |
| 1531 | char *chipname; |
| 1532 | struct net_device *dev; |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 1533 | const struct pcnet32_access *a = NULL; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1534 | u8 promaddr[6]; |
| 1535 | int ret = -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1536 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1537 | /* reset the chip */ |
| 1538 | pcnet32_wio_reset(ioaddr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1539 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1540 | /* NOTE: 16-bit check is first, otherwise some older PCnet chips fail */ |
| 1541 | if (pcnet32_wio_read_csr(ioaddr, 0) == 4 && pcnet32_wio_check(ioaddr)) { |
| 1542 | a = &pcnet32_wio; |
| 1543 | } else { |
| 1544 | pcnet32_dwio_reset(ioaddr); |
Joe Perches | 8e95a20 | 2009-12-03 07:58:21 +0000 | [diff] [blame] | 1545 | if (pcnet32_dwio_read_csr(ioaddr, 0) == 4 && |
| 1546 | pcnet32_dwio_check(ioaddr)) { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1547 | a = &pcnet32_dwio; |
Don Fry | df4e7f7 | 2009-07-31 08:40:06 +0000 | [diff] [blame] | 1548 | } else { |
| 1549 | if (pcnet32_debug & NETIF_MSG_PROBE) |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 1550 | pr_err("No access methods\n"); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1551 | goto err_release_region; |
Don Fry | df4e7f7 | 2009-07-31 08:40:06 +0000 | [diff] [blame] | 1552 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1553 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1554 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1555 | chip_version = |
| 1556 | a->read_csr(ioaddr, 88) | (a->read_csr(ioaddr, 89) << 16); |
| 1557 | if ((pcnet32_debug & NETIF_MSG_PROBE) && (pcnet32_debug & NETIF_MSG_HW)) |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 1558 | pr_info(" PCnet chip version is %#x\n", chip_version); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1559 | if ((chip_version & 0xfff) != 0x003) { |
| 1560 | if (pcnet32_debug & NETIF_MSG_PROBE) |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 1561 | pr_info("Unsupported chip version\n"); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 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) |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 1614 | printk(KERN_DEBUG PFX "media set to %sMbit mode\n", |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 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) |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 1630 | pr_info("PCnet version %#x, no PCnet32 chip\n", |
| 1631 | chip_version); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1632 | goto err_release_region; |
| 1633 | } |
| 1634 | |
| 1635 | /* |
| 1636 | * On selected chips turn on the BCR18:NOUFLO bit. This stops transmit |
| 1637 | * starting until the packet is loaded. Strike one for reliability, lose |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 1638 | * one for latency - although on PCI this isn't a big loss. Older chips |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1639 | * have FIFO's smaller than a packet, so you can't do this. |
| 1640 | * Turn on BCR18:BurstRdEn and BCR18:BurstWrEn. |
| 1641 | */ |
| 1642 | |
| 1643 | if (fset) { |
| 1644 | a->write_bcr(ioaddr, 18, (a->read_bcr(ioaddr, 18) | 0x0860)); |
| 1645 | a->write_csr(ioaddr, 80, |
| 1646 | (a->read_csr(ioaddr, 80) & 0x0C00) | 0x0c00); |
| 1647 | dxsuflo = 1; |
| 1648 | } |
| 1649 | |
Don Fry | 6ecb766 | 2007-03-06 10:45:23 -0800 | [diff] [blame] | 1650 | dev = alloc_etherdev(sizeof(*lp)); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1651 | if (!dev) { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1652 | ret = -ENOMEM; |
| 1653 | goto err_release_region; |
| 1654 | } |
Don Fry | 63097b3 | 2009-07-31 08:45:29 +0000 | [diff] [blame] | 1655 | |
| 1656 | if (pdev) |
| 1657 | SET_NETDEV_DEV(dev, &pdev->dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1658 | |
| 1659 | if (pcnet32_debug & NETIF_MSG_PROBE) |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 1660 | pr_info("%s at %#3lx,", chipname, ioaddr); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1661 | |
| 1662 | /* In most chips, after a chip reset, the ethernet address is read from the |
| 1663 | * station address PROM at the base address and programmed into the |
| 1664 | * "Physical Address Registers" CSR12-14. |
| 1665 | * As a precautionary measure, we read the PROM values and complain if |
Linas Vepstas | bc0e1fc | 2006-03-28 16:36:23 -0600 | [diff] [blame] | 1666 | * they disagree with the CSRs. If they miscompare, and the PROM addr |
| 1667 | * is valid, then the PROM addr is used. |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1668 | */ |
| 1669 | for (i = 0; i < 3; i++) { |
| 1670 | unsigned int val; |
| 1671 | val = a->read_csr(ioaddr, i + 12) & 0x0ffff; |
| 1672 | /* There may be endianness issues here. */ |
| 1673 | dev->dev_addr[2 * i] = val & 0x0ff; |
| 1674 | dev->dev_addr[2 * i + 1] = (val >> 8) & 0x0ff; |
| 1675 | } |
| 1676 | |
| 1677 | /* read PROM address and compare with CSR address */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1678 | for (i = 0; i < 6; i++) |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1679 | promaddr[i] = inb(ioaddr + i); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1680 | |
Joe Perches | 8e95a20 | 2009-12-03 07:58:21 +0000 | [diff] [blame] | 1681 | if (memcmp(promaddr, dev->dev_addr, 6) || |
| 1682 | !is_valid_ether_addr(dev->dev_addr)) { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1683 | if (is_valid_ether_addr(promaddr)) { |
| 1684 | if (pcnet32_debug & NETIF_MSG_PROBE) { |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 1685 | pr_cont(" warning: CSR address invalid,\n"); |
| 1686 | pr_info(" using instead PROM address of"); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1687 | } |
| 1688 | memcpy(dev->dev_addr, promaddr, 6); |
| 1689 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1690 | } |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1691 | memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len); |
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 | /* if the ethernet address is not valid, force to 00:00:00:00:00:00 */ |
| 1694 | if (!is_valid_ether_addr(dev->perm_addr)) |
Daniel Drake | 1f04493 | 2009-12-24 08:11:24 +0000 | [diff] [blame] | 1695 | memset(dev->dev_addr, 0, ETH_ALEN); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1696 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1697 | if (pcnet32_debug & NETIF_MSG_PROBE) { |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 1698 | pr_cont(" %pM", dev->dev_addr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1699 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1700 | /* Version 0x2623 and 0x2624 */ |
| 1701 | if (((chip_version + 1) & 0xfffe) == 0x2624) { |
| 1702 | i = a->read_csr(ioaddr, 80) & 0x0C00; /* Check tx_start_pt */ |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 1703 | pr_info(" tx_start_pt(0x%04x):", i); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1704 | switch (i >> 10) { |
| 1705 | case 0: |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 1706 | pr_cont(" 20 bytes,"); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1707 | break; |
| 1708 | case 1: |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 1709 | pr_cont(" 64 bytes,"); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1710 | break; |
| 1711 | case 2: |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 1712 | pr_cont(" 128 bytes,"); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1713 | break; |
| 1714 | case 3: |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 1715 | pr_cont("~220 bytes,"); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1716 | break; |
| 1717 | } |
| 1718 | i = a->read_bcr(ioaddr, 18); /* Check Burst/Bus control */ |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 1719 | pr_cont(" BCR18(%x):", i & 0xffff); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1720 | if (i & (1 << 5)) |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 1721 | pr_cont("BurstWrEn "); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1722 | if (i & (1 << 6)) |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 1723 | pr_cont("BurstRdEn "); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1724 | if (i & (1 << 7)) |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 1725 | pr_cont("DWordIO "); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1726 | if (i & (1 << 11)) |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 1727 | pr_cont("NoUFlow "); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1728 | i = a->read_bcr(ioaddr, 25); |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 1729 | pr_info(" SRAMSIZE=0x%04x,", i << 8); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1730 | i = a->read_bcr(ioaddr, 26); |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 1731 | pr_cont(" SRAM_BND=0x%04x,", i << 8); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1732 | i = a->read_bcr(ioaddr, 27); |
| 1733 | if (i & (1 << 14)) |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 1734 | pr_cont("LowLatRx"); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1735 | } |
| 1736 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1737 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1738 | dev->base_addr = ioaddr; |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 1739 | lp = netdev_priv(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1740 | /* pci_alloc_consistent returns page-aligned memory, so we do not have to check the alignment */ |
Joe Perches | 9e3f806 | 2010-02-15 08:34:26 +0000 | [diff] [blame] | 1741 | lp->init_block = pci_alloc_consistent(pdev, sizeof(*lp->init_block), |
| 1742 | &lp->init_dma_addr); |
| 1743 | if (!lp->init_block) { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1744 | if (pcnet32_debug & NETIF_MSG_PROBE) |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 1745 | pr_err("Consistent memory allocation failed\n"); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1746 | ret = -ENOMEM; |
| 1747 | goto err_free_netdev; |
| 1748 | } |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1749 | lp->pci_dev = pdev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1750 | |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 1751 | lp->dev = dev; |
| 1752 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1753 | spin_lock_init(&lp->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1754 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1755 | lp->name = chipname; |
| 1756 | lp->shared_irq = shared; |
| 1757 | lp->tx_ring_size = TX_RING_SIZE; /* default tx ring size */ |
| 1758 | lp->rx_ring_size = RX_RING_SIZE; /* default rx ring size */ |
| 1759 | lp->tx_mod_mask = lp->tx_ring_size - 1; |
| 1760 | lp->rx_mod_mask = lp->rx_ring_size - 1; |
| 1761 | lp->tx_len_bits = (PCNET32_LOG_TX_BUFFERS << 12); |
| 1762 | lp->rx_len_bits = (PCNET32_LOG_RX_BUFFERS << 4); |
| 1763 | lp->mii_if.full_duplex = fdx; |
| 1764 | lp->mii_if.phy_id_mask = 0x1f; |
| 1765 | lp->mii_if.reg_num_mask = 0x1f; |
| 1766 | lp->dxsuflo = dxsuflo; |
| 1767 | lp->mii = mii; |
Don Fry | 8d91626 | 2006-08-22 10:22:37 -0700 | [diff] [blame] | 1768 | lp->chip_version = chip_version; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1769 | lp->msg_enable = pcnet32_debug; |
Joe Perches | 8e95a20 | 2009-12-03 07:58:21 +0000 | [diff] [blame] | 1770 | if ((cards_found >= MAX_UNITS) || |
| 1771 | (options[cards_found] >= sizeof(options_mapping))) |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1772 | lp->options = PCNET32_PORT_ASEL; |
| 1773 | else |
| 1774 | lp->options = options_mapping[options[cards_found]]; |
| 1775 | lp->mii_if.dev = dev; |
| 1776 | lp->mii_if.mdio_read = mdio_read; |
| 1777 | lp->mii_if.mdio_write = mdio_write; |
| 1778 | |
Don Fry | feff348 | 2007-10-17 15:59:22 -0700 | [diff] [blame] | 1779 | /* napi.weight is used in both the napi and non-napi cases */ |
| 1780 | lp->napi.weight = lp->rx_ring_size / 2; |
| 1781 | |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 1782 | netif_napi_add(dev, &lp->napi, pcnet32_poll, lp->rx_ring_size / 2); |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 1783 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1784 | if (fdx && !(lp->options & PCNET32_PORT_ASEL) && |
| 1785 | ((cards_found >= MAX_UNITS) || full_duplex[cards_found])) |
| 1786 | lp->options |= PCNET32_PORT_FD; |
| 1787 | |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 1788 | lp->a = a; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1789 | |
| 1790 | /* prior to register_netdev, dev->name is not yet correct */ |
| 1791 | if (pcnet32_alloc_ring(dev, pci_name(lp->pci_dev))) { |
| 1792 | ret = -ENOMEM; |
| 1793 | goto err_free_ring; |
| 1794 | } |
| 1795 | /* detect special T1/E1 WAN card by checking for MAC address */ |
Joe Perches | 8e95a20 | 2009-12-03 07:58:21 +0000 | [diff] [blame] | 1796 | if (dev->dev_addr[0] == 0x00 && dev->dev_addr[1] == 0xe0 && |
| 1797 | dev->dev_addr[2] == 0x75) |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1798 | lp->options = PCNET32_PORT_FD | PCNET32_PORT_GPSI; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1799 | |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 1800 | lp->init_block->mode = cpu_to_le16(0x0003); /* Disable Rx and Tx. */ |
Don Fry | 6ecb766 | 2007-03-06 10:45:23 -0800 | [diff] [blame] | 1801 | lp->init_block->tlen_rlen = |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 1802 | cpu_to_le16(lp->tx_len_bits | lp->rx_len_bits); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1803 | for (i = 0; i < 6; i++) |
Don Fry | 6ecb766 | 2007-03-06 10:45:23 -0800 | [diff] [blame] | 1804 | lp->init_block->phys_addr[i] = dev->dev_addr[i]; |
| 1805 | lp->init_block->filter[0] = 0x00000000; |
| 1806 | lp->init_block->filter[1] = 0x00000000; |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 1807 | lp->init_block->rx_ring = cpu_to_le32(lp->rx_ring_dma_addr); |
| 1808 | lp->init_block->tx_ring = cpu_to_le32(lp->tx_ring_dma_addr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1809 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1810 | /* switch pcnet32 to 32bit mode */ |
| 1811 | a->write_bcr(ioaddr, 20, 2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1812 | |
Don Fry | 6ecb766 | 2007-03-06 10:45:23 -0800 | [diff] [blame] | 1813 | a->write_csr(ioaddr, 1, (lp->init_dma_addr & 0xffff)); |
| 1814 | a->write_csr(ioaddr, 2, (lp->init_dma_addr >> 16)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1815 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1816 | if (pdev) { /* use the IRQ provided by PCI */ |
| 1817 | dev->irq = pdev->irq; |
| 1818 | if (pcnet32_debug & NETIF_MSG_PROBE) |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 1819 | pr_cont(" assigned IRQ %d\n", dev->irq); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1820 | } else { |
| 1821 | unsigned long irq_mask = probe_irq_on(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1822 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1823 | /* |
| 1824 | * To auto-IRQ we enable the initialization-done and DMA error |
| 1825 | * interrupts. For ISA boards we get a DMA error, but VLB and PCI |
| 1826 | * boards will work. |
| 1827 | */ |
| 1828 | /* Trigger an initialization just for the interrupt. */ |
Don Fry | b368a3f | 2006-09-13 10:16:07 -0700 | [diff] [blame] | 1829 | a->write_csr(ioaddr, CSR0, CSR0_INTEN | CSR0_INIT); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1830 | mdelay(1); |
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 | dev->irq = probe_irq_off(irq_mask); |
| 1833 | if (!dev->irq) { |
| 1834 | if (pcnet32_debug & NETIF_MSG_PROBE) |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 1835 | pr_cont(", failed to detect IRQ line\n"); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1836 | ret = -ENODEV; |
| 1837 | goto err_free_ring; |
| 1838 | } |
| 1839 | if (pcnet32_debug & NETIF_MSG_PROBE) |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 1840 | pr_cont(", probed IRQ %d\n", dev->irq); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1841 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1842 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1843 | /* Set the mii phy_id so that we can query the link state */ |
| 1844 | if (lp->mii) { |
| 1845 | /* lp->phycount and lp->phymask are set to 0 by memset above */ |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 1846 | |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 1847 | lp->mii_if.phy_id = ((lp->a->read_bcr(ioaddr, 33)) >> 5) & 0x1f; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1848 | /* scan for PHYs */ |
| 1849 | for (i = 0; i < PCNET32_MAX_PHYS; i++) { |
| 1850 | unsigned short id1, id2; |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 1851 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1852 | id1 = mdio_read(dev, i, MII_PHYSID1); |
| 1853 | if (id1 == 0xffff) |
| 1854 | continue; |
| 1855 | id2 = mdio_read(dev, i, MII_PHYSID2); |
| 1856 | if (id2 == 0xffff) |
| 1857 | continue; |
| 1858 | if (i == 31 && ((chip_version + 1) & 0xfffe) == 0x2624) |
| 1859 | continue; /* 79C971 & 79C972 have phantom phy at id 31 */ |
| 1860 | lp->phycount++; |
| 1861 | lp->phymask |= (1 << i); |
| 1862 | lp->mii_if.phy_id = i; |
| 1863 | if (pcnet32_debug & NETIF_MSG_PROBE) |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 1864 | pr_info("Found PHY %04x:%04x at address %d\n", |
| 1865 | id1, id2, i); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1866 | } |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 1867 | lp->a->write_bcr(ioaddr, 33, (lp->mii_if.phy_id) << 5); |
Joe Perches | 9e3f806 | 2010-02-15 08:34:26 +0000 | [diff] [blame] | 1868 | if (lp->phycount > 1) |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1869 | lp->options |= PCNET32_PORT_MII; |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 1870 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1871 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1872 | init_timer(&lp->watchdog_timer); |
| 1873 | lp->watchdog_timer.data = (unsigned long)dev; |
| 1874 | lp->watchdog_timer.function = (void *)&pcnet32_watchdog; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1875 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1876 | /* The PCNET32-specific entries in the device structure. */ |
Stephen Hemminger | 3bc124d | 2009-01-07 17:29:16 -0800 | [diff] [blame] | 1877 | dev->netdev_ops = &pcnet32_netdev_ops; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1878 | dev->ethtool_ops = &pcnet32_ethtool_ops; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1879 | dev->watchdog_timeo = (5 * HZ); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1880 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1881 | /* Fill in the generic fields of the device structure. */ |
| 1882 | if (register_netdev(dev)) |
| 1883 | goto err_free_ring; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1884 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1885 | if (pdev) { |
| 1886 | pci_set_drvdata(pdev, dev); |
| 1887 | } else { |
| 1888 | lp->next = pcnet32_dev; |
| 1889 | pcnet32_dev = dev; |
| 1890 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1891 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1892 | if (pcnet32_debug & NETIF_MSG_PROBE) |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 1893 | pr_info("%s: registered as %s\n", dev->name, lp->name); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1894 | cards_found++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1895 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1896 | /* enable LED writes */ |
| 1897 | a->write_bcr(ioaddr, 2, a->read_bcr(ioaddr, 2) | 0x1000); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1898 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1899 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1900 | |
Don Fry | df4e7f7 | 2009-07-31 08:40:06 +0000 | [diff] [blame] | 1901 | err_free_ring: |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1902 | pcnet32_free_ring(dev); |
Jeff Garzik | 7d2e3cb | 2008-05-13 01:41:58 -0400 | [diff] [blame] | 1903 | pci_free_consistent(lp->pci_dev, sizeof(*lp->init_block), |
Don Fry | 6ecb766 | 2007-03-06 10:45:23 -0800 | [diff] [blame] | 1904 | lp->init_block, lp->init_dma_addr); |
Don Fry | df4e7f7 | 2009-07-31 08:40:06 +0000 | [diff] [blame] | 1905 | err_free_netdev: |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1906 | free_netdev(dev); |
Don Fry | df4e7f7 | 2009-07-31 08:40:06 +0000 | [diff] [blame] | 1907 | err_release_region: |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1908 | release_region(ioaddr, PCNET32_TOTAL_SIZE); |
| 1909 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1910 | } |
| 1911 | |
Don Fry | a88c844 | 2005-11-01 12:04:33 -0800 | [diff] [blame] | 1912 | /* if any allocation fails, caller must also call pcnet32_free_ring */ |
Andrew Morton | b166cfb | 2008-05-14 16:20:14 -0700 | [diff] [blame] | 1913 | static int pcnet32_alloc_ring(struct net_device *dev, const char *name) |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 1914 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 1915 | struct pcnet32_private *lp = netdev_priv(dev); |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 1916 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1917 | lp->tx_ring = pci_alloc_consistent(lp->pci_dev, |
| 1918 | sizeof(struct pcnet32_tx_head) * |
| 1919 | lp->tx_ring_size, |
| 1920 | &lp->tx_ring_dma_addr); |
| 1921 | if (lp->tx_ring == NULL) { |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 1922 | netif_err(lp, drv, dev, "Consistent memory allocation failed\n"); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1923 | return -ENOMEM; |
| 1924 | } |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 1925 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1926 | lp->rx_ring = pci_alloc_consistent(lp->pci_dev, |
| 1927 | sizeof(struct pcnet32_rx_head) * |
| 1928 | lp->rx_ring_size, |
| 1929 | &lp->rx_ring_dma_addr); |
| 1930 | if (lp->rx_ring == NULL) { |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 1931 | netif_err(lp, drv, dev, "Consistent memory allocation failed\n"); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1932 | return -ENOMEM; |
| 1933 | } |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 1934 | |
Don Fry | 12fa30f | 2006-06-29 13:53:48 -0700 | [diff] [blame] | 1935 | 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] | 1936 | GFP_ATOMIC); |
| 1937 | if (!lp->tx_dma_addr) { |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 1938 | netif_err(lp, drv, dev, "Memory allocation failed\n"); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1939 | return -ENOMEM; |
| 1940 | } |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 1941 | |
Don Fry | 12fa30f | 2006-06-29 13:53:48 -0700 | [diff] [blame] | 1942 | 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] | 1943 | GFP_ATOMIC); |
| 1944 | if (!lp->rx_dma_addr) { |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 1945 | netif_err(lp, drv, dev, "Memory allocation failed\n"); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1946 | return -ENOMEM; |
| 1947 | } |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 1948 | |
Don Fry | 12fa30f | 2006-06-29 13:53:48 -0700 | [diff] [blame] | 1949 | lp->tx_skbuff = kcalloc(lp->tx_ring_size, sizeof(struct sk_buff *), |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1950 | GFP_ATOMIC); |
| 1951 | if (!lp->tx_skbuff) { |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 1952 | netif_err(lp, drv, dev, "Memory allocation failed\n"); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1953 | return -ENOMEM; |
| 1954 | } |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 1955 | |
Don Fry | 12fa30f | 2006-06-29 13:53:48 -0700 | [diff] [blame] | 1956 | lp->rx_skbuff = kcalloc(lp->rx_ring_size, sizeof(struct sk_buff *), |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1957 | GFP_ATOMIC); |
| 1958 | if (!lp->rx_skbuff) { |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 1959 | netif_err(lp, drv, dev, "Memory allocation failed\n"); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1960 | return -ENOMEM; |
| 1961 | } |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 1962 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1963 | return 0; |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 1964 | } |
| 1965 | |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 1966 | static void pcnet32_free_ring(struct net_device *dev) |
| 1967 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 1968 | struct pcnet32_private *lp = netdev_priv(dev); |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 1969 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1970 | kfree(lp->tx_skbuff); |
| 1971 | lp->tx_skbuff = NULL; |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 1972 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1973 | kfree(lp->rx_skbuff); |
| 1974 | lp->rx_skbuff = NULL; |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 1975 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1976 | kfree(lp->tx_dma_addr); |
| 1977 | lp->tx_dma_addr = NULL; |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 1978 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1979 | kfree(lp->rx_dma_addr); |
| 1980 | lp->rx_dma_addr = NULL; |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 1981 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1982 | if (lp->tx_ring) { |
| 1983 | pci_free_consistent(lp->pci_dev, |
| 1984 | sizeof(struct pcnet32_tx_head) * |
| 1985 | lp->tx_ring_size, lp->tx_ring, |
| 1986 | lp->tx_ring_dma_addr); |
| 1987 | lp->tx_ring = NULL; |
| 1988 | } |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 1989 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1990 | if (lp->rx_ring) { |
| 1991 | pci_free_consistent(lp->pci_dev, |
| 1992 | sizeof(struct pcnet32_rx_head) * |
| 1993 | lp->rx_ring_size, lp->rx_ring, |
| 1994 | lp->rx_ring_dma_addr); |
| 1995 | lp->rx_ring = NULL; |
| 1996 | } |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 1997 | } |
| 1998 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 1999 | static int pcnet32_open(struct net_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2000 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 2001 | struct pcnet32_private *lp = netdev_priv(dev); |
Don Fry | 63097b3 | 2009-07-31 08:45:29 +0000 | [diff] [blame] | 2002 | struct pci_dev *pdev = lp->pci_dev; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2003 | unsigned long ioaddr = dev->base_addr; |
| 2004 | u16 val; |
| 2005 | int i; |
| 2006 | int rc; |
| 2007 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2008 | |
Joe Perches | a0607fd | 2009-11-18 23:29:17 -0800 | [diff] [blame] | 2009 | if (request_irq(dev->irq, pcnet32_interrupt, |
Thomas Gleixner | 1fb9df5 | 2006-07-01 19:29:39 -0700 | [diff] [blame] | 2010 | lp->shared_irq ? IRQF_SHARED : 0, dev->name, |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2011 | (void *)dev)) { |
| 2012 | return -EAGAIN; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2013 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2014 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2015 | spin_lock_irqsave(&lp->lock, flags); |
| 2016 | /* Check for a valid station address */ |
| 2017 | if (!is_valid_ether_addr(dev->dev_addr)) { |
| 2018 | rc = -EINVAL; |
| 2019 | goto err_free_irq; |
| 2020 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2021 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2022 | /* Reset the PCNET32 */ |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 2023 | lp->a->reset(ioaddr); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2024 | |
| 2025 | /* switch pcnet32 to 32bit mode */ |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 2026 | lp->a->write_bcr(ioaddr, 20, 2); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2027 | |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 2028 | netif_printk(lp, ifup, KERN_DEBUG, dev, |
| 2029 | "%s() irq %d tx/rx rings %#x/%#x init %#x\n", |
| 2030 | __func__, dev->irq, (u32) (lp->tx_ring_dma_addr), |
| 2031 | (u32) (lp->rx_ring_dma_addr), |
| 2032 | (u32) (lp->init_dma_addr)); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2033 | |
| 2034 | /* set/reset autoselect bit */ |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 2035 | val = lp->a->read_bcr(ioaddr, 2) & ~2; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2036 | if (lp->options & PCNET32_PORT_ASEL) |
| 2037 | val |= 2; |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 2038 | lp->a->write_bcr(ioaddr, 2, val); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2039 | |
| 2040 | /* handle full duplex setting */ |
| 2041 | if (lp->mii_if.full_duplex) { |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 2042 | val = lp->a->read_bcr(ioaddr, 9) & ~3; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2043 | if (lp->options & PCNET32_PORT_FD) { |
| 2044 | val |= 1; |
| 2045 | if (lp->options == (PCNET32_PORT_FD | PCNET32_PORT_AUI)) |
| 2046 | val |= 2; |
| 2047 | } else if (lp->options & PCNET32_PORT_ASEL) { |
| 2048 | /* workaround of xSeries250, turn on for 79C975 only */ |
Don Fry | 8d91626 | 2006-08-22 10:22:37 -0700 | [diff] [blame] | 2049 | if (lp->chip_version == 0x2627) |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2050 | val |= 3; |
| 2051 | } |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 2052 | lp->a->write_bcr(ioaddr, 9, val); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2053 | } |
| 2054 | |
| 2055 | /* set/reset GPSI bit in test register */ |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 2056 | val = lp->a->read_csr(ioaddr, 124) & ~0x10; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2057 | if ((lp->options & PCNET32_PORT_PORTSEL) == PCNET32_PORT_GPSI) |
| 2058 | val |= 0x10; |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 2059 | lp->a->write_csr(ioaddr, 124, val); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2060 | |
| 2061 | /* Allied Telesyn AT 2700/2701 FX are 100Mbit only and do not negotiate */ |
Don Fry | 63097b3 | 2009-07-31 08:45:29 +0000 | [diff] [blame] | 2062 | if (pdev && pdev->subsystem_vendor == PCI_VENDOR_ID_AT && |
| 2063 | (pdev->subsystem_device == PCI_SUBDEVICE_ID_AT_2700FX || |
| 2064 | pdev->subsystem_device == PCI_SUBDEVICE_ID_AT_2701FX)) { |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 2065 | if (lp->options & PCNET32_PORT_ASEL) { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2066 | lp->options = PCNET32_PORT_FD | PCNET32_PORT_100; |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 2067 | netif_printk(lp, link, KERN_DEBUG, dev, |
| 2068 | "Setting 100Mb-Full Duplex\n"); |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 2069 | } |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2070 | } |
| 2071 | if (lp->phycount < 2) { |
| 2072 | /* |
| 2073 | * 24 Jun 2004 according AMD, in order to change the PHY, |
| 2074 | * DANAS (or DISPM for 79C976) must be set; then select the speed, |
| 2075 | * duplex, and/or enable auto negotiation, and clear DANAS |
| 2076 | */ |
| 2077 | if (lp->mii && !(lp->options & PCNET32_PORT_ASEL)) { |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 2078 | lp->a->write_bcr(ioaddr, 32, |
| 2079 | lp->a->read_bcr(ioaddr, 32) | 0x0080); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2080 | /* disable Auto Negotiation, set 10Mpbs, HD */ |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 2081 | val = lp->a->read_bcr(ioaddr, 32) & ~0xb8; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2082 | if (lp->options & PCNET32_PORT_FD) |
| 2083 | val |= 0x10; |
| 2084 | if (lp->options & PCNET32_PORT_100) |
| 2085 | val |= 0x08; |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 2086 | lp->a->write_bcr(ioaddr, 32, val); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2087 | } else { |
| 2088 | if (lp->options & PCNET32_PORT_ASEL) { |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 2089 | lp->a->write_bcr(ioaddr, 32, |
| 2090 | lp->a->read_bcr(ioaddr, |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2091 | 32) | 0x0080); |
| 2092 | /* enable auto negotiate, setup, disable fd */ |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 2093 | val = lp->a->read_bcr(ioaddr, 32) & ~0x98; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2094 | val |= 0x20; |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 2095 | lp->a->write_bcr(ioaddr, 32, val); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2096 | } |
| 2097 | } |
| 2098 | } else { |
| 2099 | int first_phy = -1; |
| 2100 | u16 bmcr; |
| 2101 | u32 bcr9; |
David Decotigny | 8ae6dac | 2011-04-27 18:32:38 +0000 | [diff] [blame] | 2102 | struct ethtool_cmd ecmd = { .cmd = ETHTOOL_GSET }; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2103 | |
| 2104 | /* |
| 2105 | * There is really no good other way to handle multiple PHYs |
| 2106 | * other than turning off all automatics |
| 2107 | */ |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 2108 | val = lp->a->read_bcr(ioaddr, 2); |
| 2109 | lp->a->write_bcr(ioaddr, 2, val & ~2); |
| 2110 | val = lp->a->read_bcr(ioaddr, 32); |
| 2111 | lp->a->write_bcr(ioaddr, 32, val & ~(1 << 7)); /* stop MII manager */ |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2112 | |
| 2113 | if (!(lp->options & PCNET32_PORT_ASEL)) { |
| 2114 | /* setup ecmd */ |
| 2115 | ecmd.port = PORT_MII; |
| 2116 | ecmd.transceiver = XCVR_INTERNAL; |
| 2117 | ecmd.autoneg = AUTONEG_DISABLE; |
David Decotigny | 8ae6dac | 2011-04-27 18:32:38 +0000 | [diff] [blame] | 2118 | ethtool_cmd_speed_set(&ecmd, |
| 2119 | (lp->options & PCNET32_PORT_100) ? |
| 2120 | SPEED_100 : SPEED_10); |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 2121 | bcr9 = lp->a->read_bcr(ioaddr, 9); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2122 | |
| 2123 | if (lp->options & PCNET32_PORT_FD) { |
| 2124 | ecmd.duplex = DUPLEX_FULL; |
| 2125 | bcr9 |= (1 << 0); |
| 2126 | } else { |
| 2127 | ecmd.duplex = DUPLEX_HALF; |
| 2128 | bcr9 |= ~(1 << 0); |
| 2129 | } |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 2130 | lp->a->write_bcr(ioaddr, 9, bcr9); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2131 | } |
| 2132 | |
| 2133 | for (i = 0; i < PCNET32_MAX_PHYS; i++) { |
| 2134 | if (lp->phymask & (1 << i)) { |
| 2135 | /* isolate all but the first PHY */ |
| 2136 | bmcr = mdio_read(dev, i, MII_BMCR); |
| 2137 | if (first_phy == -1) { |
| 2138 | first_phy = i; |
| 2139 | mdio_write(dev, i, MII_BMCR, |
| 2140 | bmcr & ~BMCR_ISOLATE); |
| 2141 | } else { |
| 2142 | mdio_write(dev, i, MII_BMCR, |
| 2143 | bmcr | BMCR_ISOLATE); |
| 2144 | } |
| 2145 | /* use mii_ethtool_sset to setup PHY */ |
| 2146 | lp->mii_if.phy_id = i; |
| 2147 | ecmd.phy_address = i; |
| 2148 | if (lp->options & PCNET32_PORT_ASEL) { |
| 2149 | mii_ethtool_gset(&lp->mii_if, &ecmd); |
| 2150 | ecmd.autoneg = AUTONEG_ENABLE; |
| 2151 | } |
| 2152 | mii_ethtool_sset(&lp->mii_if, &ecmd); |
| 2153 | } |
| 2154 | } |
| 2155 | lp->mii_if.phy_id = first_phy; |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 2156 | netif_info(lp, link, dev, "Using PHY number %d\n", first_phy); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2157 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2158 | |
| 2159 | #ifdef DO_DXSUFLO |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2160 | if (lp->dxsuflo) { /* Disable transmit stop on underflow */ |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 2161 | val = lp->a->read_csr(ioaddr, CSR3); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2162 | val |= 0x40; |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 2163 | lp->a->write_csr(ioaddr, CSR3, val); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2164 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2165 | #endif |
| 2166 | |
Don Fry | 6ecb766 | 2007-03-06 10:45:23 -0800 | [diff] [blame] | 2167 | lp->init_block->mode = |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 2168 | cpu_to_le16((lp->options & PCNET32_PORT_PORTSEL) << 7); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2169 | pcnet32_load_multicast(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2170 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2171 | if (pcnet32_init_ring(dev)) { |
| 2172 | rc = -ENOMEM; |
| 2173 | goto err_free_ring; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2174 | } |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 2175 | |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 2176 | napi_enable(&lp->napi); |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 2177 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2178 | /* Re-initialize the PCNET32, and start it when done. */ |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 2179 | lp->a->write_csr(ioaddr, 1, (lp->init_dma_addr & 0xffff)); |
| 2180 | lp->a->write_csr(ioaddr, 2, (lp->init_dma_addr >> 16)); |
Hubert WS Lin | eabf041 | 2005-09-14 11:39:25 -0700 | [diff] [blame] | 2181 | |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 2182 | lp->a->write_csr(ioaddr, CSR4, 0x0915); /* auto tx pad */ |
| 2183 | lp->a->write_csr(ioaddr, CSR0, CSR0_INIT); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2184 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2185 | netif_start_queue(dev); |
| 2186 | |
Don Fry | 8d91626 | 2006-08-22 10:22:37 -0700 | [diff] [blame] | 2187 | if (lp->chip_version >= PCNET32_79C970A) { |
| 2188 | /* Print the link status and start the watchdog */ |
| 2189 | pcnet32_check_media(dev, 1); |
Stephen Hemminger | 283a21d | 2009-01-08 11:17:13 -0800 | [diff] [blame] | 2190 | mod_timer(&lp->watchdog_timer, PCNET32_WATCHDOG_TIMEOUT); |
Don Fry | 8d91626 | 2006-08-22 10:22:37 -0700 | [diff] [blame] | 2191 | } |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2192 | |
| 2193 | i = 0; |
| 2194 | while (i++ < 100) |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 2195 | if (lp->a->read_csr(ioaddr, CSR0) & CSR0_IDON) |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2196 | break; |
| 2197 | /* |
| 2198 | * We used to clear the InitDone bit, 0x0100, here but Mark Stockton |
| 2199 | * reports that doing so triggers a bug in the '974. |
| 2200 | */ |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 2201 | lp->a->write_csr(ioaddr, CSR0, CSR0_NORMAL); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2202 | |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 2203 | netif_printk(lp, ifup, KERN_DEBUG, dev, |
| 2204 | "pcnet32 open after %d ticks, init block %#x csr0 %4.4x\n", |
| 2205 | i, |
| 2206 | (u32) (lp->init_dma_addr), |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 2207 | lp->a->read_csr(ioaddr, CSR0)); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2208 | |
| 2209 | spin_unlock_irqrestore(&lp->lock, flags); |
| 2210 | |
| 2211 | return 0; /* Always succeed */ |
| 2212 | |
Joe Perches | 9e3f806 | 2010-02-15 08:34:26 +0000 | [diff] [blame] | 2213 | err_free_ring: |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2214 | /* free any allocated skbuffs */ |
Don Fry | ac5bfe4 | 2006-06-29 13:55:27 -0700 | [diff] [blame] | 2215 | pcnet32_purge_rx_ring(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2216 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2217 | /* |
| 2218 | * Switch back to 16bit mode to avoid problems with dumb |
| 2219 | * DOS packet driver after a warm reboot |
| 2220 | */ |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 2221 | lp->a->write_bcr(ioaddr, 20, 4); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2222 | |
Joe Perches | 9e3f806 | 2010-02-15 08:34:26 +0000 | [diff] [blame] | 2223 | err_free_irq: |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2224 | spin_unlock_irqrestore(&lp->lock, flags); |
| 2225 | free_irq(dev->irq, dev); |
| 2226 | return rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2227 | } |
| 2228 | |
| 2229 | /* |
| 2230 | * The LANCE has been halted for one reason or another (busmaster memory |
| 2231 | * arbitration error, Tx FIFO underflow, driver stopped it to reconfigure, |
| 2232 | * etc.). Modern LANCE variants always reload their ring-buffer |
| 2233 | * configuration when restarted, so we must reinitialize our ring |
| 2234 | * context before restarting. As part of this reinitialization, |
| 2235 | * find all packets still on the Tx ring and pretend that they had been |
| 2236 | * sent (in effect, drop the packets on the floor) - the higher-level |
| 2237 | * protocols will time out and retransmit. It'd be better to shuffle |
| 2238 | * these skbs to a temp list and then actually re-Tx them after |
| 2239 | * restarting the chip, but I'm too lazy to do so right now. dplatt@3do.com |
| 2240 | */ |
| 2241 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2242 | static void pcnet32_purge_tx_ring(struct net_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2243 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 2244 | struct pcnet32_private *lp = netdev_priv(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2245 | int i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2246 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2247 | for (i = 0; i < lp->tx_ring_size; i++) { |
| 2248 | lp->tx_ring[i].status = 0; /* CPU owns buffer */ |
| 2249 | wmb(); /* Make sure adapter sees owner change */ |
| 2250 | if (lp->tx_skbuff[i]) { |
| 2251 | pci_unmap_single(lp->pci_dev, lp->tx_dma_addr[i], |
| 2252 | lp->tx_skbuff[i]->len, |
| 2253 | PCI_DMA_TODEVICE); |
| 2254 | dev_kfree_skb_any(lp->tx_skbuff[i]); |
| 2255 | } |
| 2256 | lp->tx_skbuff[i] = NULL; |
| 2257 | lp->tx_dma_addr[i] = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2258 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2259 | } |
| 2260 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2261 | /* Initialize the PCNET32 Rx and Tx rings. */ |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2262 | static int pcnet32_init_ring(struct net_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2263 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 2264 | struct pcnet32_private *lp = netdev_priv(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2265 | int i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2266 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2267 | lp->tx_full = 0; |
| 2268 | lp->cur_rx = lp->cur_tx = 0; |
| 2269 | lp->dirty_rx = lp->dirty_tx = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2270 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2271 | for (i = 0; i < lp->rx_ring_size; i++) { |
| 2272 | struct sk_buff *rx_skbuff = lp->rx_skbuff[i]; |
| 2273 | if (rx_skbuff == NULL) { |
Pradeep A Dalvi | 1d26643 | 2012-02-05 02:49:09 +0000 | [diff] [blame] | 2274 | lp->rx_skbuff[i] = netdev_alloc_skb(dev, PKT_BUF_SKB); |
Joe Perches | 9e3f806 | 2010-02-15 08:34:26 +0000 | [diff] [blame] | 2275 | rx_skbuff = lp->rx_skbuff[i]; |
| 2276 | if (!rx_skbuff) { |
| 2277 | /* there is not much we can do at this point */ |
Pradeep A Dalvi | 1d26643 | 2012-02-05 02:49:09 +0000 | [diff] [blame] | 2278 | netif_err(lp, drv, dev, "%s netdev_alloc_skb failed\n", |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 2279 | __func__); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2280 | return -1; |
| 2281 | } |
Don Fry | 232c564 | 2008-02-08 07:32:26 -0800 | [diff] [blame] | 2282 | skb_reserve(rx_skbuff, NET_IP_ALIGN); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2283 | } |
| 2284 | |
| 2285 | rmb(); |
| 2286 | if (lp->rx_dma_addr[i] == 0) |
| 2287 | lp->rx_dma_addr[i] = |
| 2288 | pci_map_single(lp->pci_dev, rx_skbuff->data, |
Don Fry | 232c564 | 2008-02-08 07:32:26 -0800 | [diff] [blame] | 2289 | PKT_BUF_SIZE, PCI_DMA_FROMDEVICE); |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 2290 | lp->rx_ring[i].base = cpu_to_le32(lp->rx_dma_addr[i]); |
Don Fry | 232c564 | 2008-02-08 07:32:26 -0800 | [diff] [blame] | 2291 | lp->rx_ring[i].buf_length = cpu_to_le16(NEG_BUF_SIZE); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2292 | wmb(); /* Make sure owner changes after all others are visible */ |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 2293 | lp->rx_ring[i].status = cpu_to_le16(0x8000); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2294 | } |
| 2295 | /* The Tx buffer address is filled in as needed, but we do need to clear |
| 2296 | * the upper ownership bit. */ |
| 2297 | for (i = 0; i < lp->tx_ring_size; i++) { |
| 2298 | lp->tx_ring[i].status = 0; /* CPU owns buffer */ |
| 2299 | wmb(); /* Make sure adapter sees owner change */ |
| 2300 | lp->tx_ring[i].base = 0; |
| 2301 | lp->tx_dma_addr[i] = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2302 | } |
| 2303 | |
Don Fry | 6ecb766 | 2007-03-06 10:45:23 -0800 | [diff] [blame] | 2304 | lp->init_block->tlen_rlen = |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 2305 | cpu_to_le16(lp->tx_len_bits | lp->rx_len_bits); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2306 | for (i = 0; i < 6; i++) |
Don Fry | 6ecb766 | 2007-03-06 10:45:23 -0800 | [diff] [blame] | 2307 | lp->init_block->phys_addr[i] = dev->dev_addr[i]; |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 2308 | lp->init_block->rx_ring = cpu_to_le32(lp->rx_ring_dma_addr); |
| 2309 | lp->init_block->tx_ring = cpu_to_le32(lp->tx_ring_dma_addr); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2310 | wmb(); /* Make sure all changes are visible */ |
| 2311 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2312 | } |
| 2313 | |
| 2314 | /* the pcnet32 has been issued a stop or reset. Wait for the stop bit |
| 2315 | * then flush the pending transmit operations, re-initialize the ring, |
| 2316 | * and tell the chip to initialize. |
| 2317 | */ |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2318 | static void pcnet32_restart(struct net_device *dev, unsigned int csr0_bits) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2319 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 2320 | struct pcnet32_private *lp = netdev_priv(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2321 | unsigned long ioaddr = dev->base_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2322 | int i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2323 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2324 | /* wait for stop */ |
| 2325 | for (i = 0; i < 100; i++) |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 2326 | if (lp->a->read_csr(ioaddr, CSR0) & CSR0_STOP) |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2327 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2328 | |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 2329 | if (i >= 100) |
| 2330 | netif_err(lp, drv, dev, "%s timed out waiting for stop\n", |
| 2331 | __func__); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2332 | |
| 2333 | pcnet32_purge_tx_ring(dev); |
| 2334 | if (pcnet32_init_ring(dev)) |
| 2335 | return; |
| 2336 | |
| 2337 | /* ReInit Ring */ |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 2338 | lp->a->write_csr(ioaddr, CSR0, CSR0_INIT); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2339 | i = 0; |
| 2340 | while (i++ < 1000) |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 2341 | if (lp->a->read_csr(ioaddr, CSR0) & CSR0_IDON) |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2342 | break; |
| 2343 | |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 2344 | lp->a->write_csr(ioaddr, CSR0, csr0_bits); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2345 | } |
| 2346 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2347 | static void pcnet32_tx_timeout(struct net_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2348 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 2349 | struct pcnet32_private *lp = netdev_priv(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2350 | unsigned long ioaddr = dev->base_addr, flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2351 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2352 | spin_lock_irqsave(&lp->lock, flags); |
| 2353 | /* Transmitter timeout, serious problems. */ |
| 2354 | if (pcnet32_debug & NETIF_MSG_DRV) |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 2355 | pr_err("%s: transmit timed out, status %4.4x, resetting\n", |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 2356 | dev->name, lp->a->read_csr(ioaddr, CSR0)); |
| 2357 | lp->a->write_csr(ioaddr, CSR0, CSR0_STOP); |
Don Fry | 4f1e5ba | 2007-10-17 17:06:19 -0700 | [diff] [blame] | 2358 | dev->stats.tx_errors++; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2359 | if (netif_msg_tx_err(lp)) { |
| 2360 | int i; |
| 2361 | printk(KERN_DEBUG |
| 2362 | " Ring data dump: dirty_tx %d cur_tx %d%s cur_rx %d.", |
| 2363 | lp->dirty_tx, lp->cur_tx, lp->tx_full ? " (full)" : "", |
| 2364 | lp->cur_rx); |
| 2365 | for (i = 0; i < lp->rx_ring_size; i++) |
| 2366 | printk("%s %08x %04x %08x %04x", i & 1 ? "" : "\n ", |
| 2367 | le32_to_cpu(lp->rx_ring[i].base), |
| 2368 | (-le16_to_cpu(lp->rx_ring[i].buf_length)) & |
| 2369 | 0xffff, le32_to_cpu(lp->rx_ring[i].msg_length), |
| 2370 | le16_to_cpu(lp->rx_ring[i].status)); |
| 2371 | for (i = 0; i < lp->tx_ring_size; i++) |
| 2372 | printk("%s %08x %04x %08x %04x", i & 1 ? "" : "\n ", |
| 2373 | le32_to_cpu(lp->tx_ring[i].base), |
| 2374 | (-le16_to_cpu(lp->tx_ring[i].length)) & 0xffff, |
| 2375 | le32_to_cpu(lp->tx_ring[i].misc), |
| 2376 | le16_to_cpu(lp->tx_ring[i].status)); |
| 2377 | printk("\n"); |
| 2378 | } |
Don Fry | b368a3f | 2006-09-13 10:16:07 -0700 | [diff] [blame] | 2379 | pcnet32_restart(dev, CSR0_NORMAL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2380 | |
Eric Dumazet | 1ae5dc3 | 2010-05-10 05:01:31 -0700 | [diff] [blame] | 2381 | dev->trans_start = jiffies; /* prevent tx timeout */ |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2382 | netif_wake_queue(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2383 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2384 | spin_unlock_irqrestore(&lp->lock, flags); |
| 2385 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2386 | |
Stephen Hemminger | 61357325 | 2009-08-31 19:50:58 +0000 | [diff] [blame] | 2387 | static netdev_tx_t pcnet32_start_xmit(struct sk_buff *skb, |
| 2388 | struct net_device *dev) |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2389 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 2390 | struct pcnet32_private *lp = netdev_priv(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2391 | unsigned long ioaddr = dev->base_addr; |
| 2392 | u16 status; |
| 2393 | int entry; |
| 2394 | unsigned long flags; |
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 | spin_lock_irqsave(&lp->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2397 | |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 2398 | netif_printk(lp, tx_queued, KERN_DEBUG, dev, |
| 2399 | "%s() called, csr0 %4.4x\n", |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 2400 | __func__, lp->a->read_csr(ioaddr, CSR0)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2401 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2402 | /* Default status -- will not enable Successful-TxDone |
| 2403 | * interrupt when that option is available to us. |
| 2404 | */ |
| 2405 | status = 0x8300; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2406 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2407 | /* Fill in a Tx ring entry */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2408 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2409 | /* Mask to ring buffer boundary. */ |
| 2410 | entry = lp->cur_tx & lp->tx_mod_mask; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2411 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2412 | /* Caution: the write order is important here, set the status |
| 2413 | * with the "ownership" bits last. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2414 | |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 2415 | lp->tx_ring[entry].length = cpu_to_le16(-skb->len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2416 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2417 | lp->tx_ring[entry].misc = 0x00000000; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2418 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2419 | lp->tx_skbuff[entry] = skb; |
| 2420 | lp->tx_dma_addr[entry] = |
| 2421 | pci_map_single(lp->pci_dev, skb->data, skb->len, PCI_DMA_TODEVICE); |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 2422 | lp->tx_ring[entry].base = cpu_to_le32(lp->tx_dma_addr[entry]); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2423 | wmb(); /* Make sure owner changes after all others are visible */ |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 2424 | lp->tx_ring[entry].status = cpu_to_le16(status); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2425 | |
| 2426 | lp->cur_tx++; |
Don Fry | 4f1e5ba | 2007-10-17 17:06:19 -0700 | [diff] [blame] | 2427 | dev->stats.tx_bytes += skb->len; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2428 | |
| 2429 | /* Trigger an immediate send poll. */ |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 2430 | lp->a->write_csr(ioaddr, CSR0, CSR0_INTEN | CSR0_TXPOLL); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2431 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2432 | if (lp->tx_ring[(entry + 1) & lp->tx_mod_mask].base != 0) { |
| 2433 | lp->tx_full = 1; |
| 2434 | netif_stop_queue(dev); |
| 2435 | } |
| 2436 | spin_unlock_irqrestore(&lp->lock, flags); |
Patrick McHardy | 6ed1065 | 2009-06-23 06:03:08 +0000 | [diff] [blame] | 2437 | return NETDEV_TX_OK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2438 | } |
| 2439 | |
| 2440 | /* The PCNET32 interrupt handler. */ |
| 2441 | static irqreturn_t |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 2442 | pcnet32_interrupt(int irq, void *dev_id) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2443 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2444 | struct net_device *dev = dev_id; |
| 2445 | struct pcnet32_private *lp; |
| 2446 | unsigned long ioaddr; |
Don Fry | 5c99346 | 2006-09-13 10:15:43 -0700 | [diff] [blame] | 2447 | u16 csr0; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2448 | int boguscnt = max_interrupt_work; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2449 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2450 | ioaddr = dev->base_addr; |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 2451 | lp = netdev_priv(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2452 | |
| 2453 | spin_lock(&lp->lock); |
| 2454 | |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 2455 | csr0 = lp->a->read_csr(ioaddr, CSR0); |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 2456 | while ((csr0 & 0x8f00) && --boguscnt >= 0) { |
Joe Perches | 9e3f806 | 2010-02-15 08:34:26 +0000 | [diff] [blame] | 2457 | if (csr0 == 0xffff) |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2458 | break; /* PCMCIA remove happened */ |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2459 | /* Acknowledge all of the current interrupt sources ASAP. */ |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 2460 | lp->a->write_csr(ioaddr, CSR0, csr0 & ~0x004f); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2461 | |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 2462 | netif_printk(lp, intr, KERN_DEBUG, dev, |
| 2463 | "interrupt csr0=%#2.2x new csr=%#2.2x\n", |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 2464 | csr0, lp->a->read_csr(ioaddr, CSR0)); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2465 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2466 | /* Log misc errors. */ |
| 2467 | if (csr0 & 0x4000) |
Don Fry | 4f1e5ba | 2007-10-17 17:06:19 -0700 | [diff] [blame] | 2468 | dev->stats.tx_errors++; /* Tx babble. */ |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2469 | if (csr0 & 0x1000) { |
| 2470 | /* |
Don Fry | 3904c32 | 2006-09-13 10:16:38 -0700 | [diff] [blame] | 2471 | * This happens when our receive ring is full. This |
| 2472 | * shouldn't be a problem as we will see normal rx |
| 2473 | * interrupts for the frames in the receive ring. But |
| 2474 | * there are some PCI chipsets (I can reproduce this |
| 2475 | * on SP3G with Intel saturn chipset) which have |
| 2476 | * sometimes problems and will fill up the receive |
| 2477 | * ring with error descriptors. In this situation we |
| 2478 | * don't get a rx interrupt, but a missed frame |
Don Fry | 7de745e | 2006-09-13 10:16:53 -0700 | [diff] [blame] | 2479 | * interrupt sooner or later. |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2480 | */ |
Don Fry | 4f1e5ba | 2007-10-17 17:06:19 -0700 | [diff] [blame] | 2481 | dev->stats.rx_errors++; /* Missed a Rx frame. */ |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2482 | } |
| 2483 | if (csr0 & 0x0800) { |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 2484 | netif_err(lp, drv, dev, "Bus master arbitration failure, status %4.4x\n", |
| 2485 | csr0); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2486 | /* unlike for the lance, there is no restart needed */ |
| 2487 | } |
Ben Hutchings | 288379f | 2009-01-19 16:43:59 -0800 | [diff] [blame] | 2488 | if (napi_schedule_prep(&lp->napi)) { |
Don Fry | 7de745e | 2006-09-13 10:16:53 -0700 | [diff] [blame] | 2489 | u16 val; |
| 2490 | /* set interrupt masks */ |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 2491 | val = lp->a->read_csr(ioaddr, CSR3); |
Don Fry | 7de745e | 2006-09-13 10:16:53 -0700 | [diff] [blame] | 2492 | val |= 0x5f00; |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 2493 | lp->a->write_csr(ioaddr, CSR3, val); |
John Dykstra | ce105a0 | 2009-04-29 17:22:30 -0700 | [diff] [blame] | 2494 | |
Ben Hutchings | 288379f | 2009-01-19 16:43:59 -0800 | [diff] [blame] | 2495 | __napi_schedule(&lp->napi); |
Don Fry | 7de745e | 2006-09-13 10:16:53 -0700 | [diff] [blame] | 2496 | break; |
| 2497 | } |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 2498 | csr0 = lp->a->read_csr(ioaddr, CSR0); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2499 | } |
| 2500 | |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 2501 | netif_printk(lp, intr, KERN_DEBUG, dev, |
| 2502 | "exiting interrupt, csr0=%#4.4x\n", |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 2503 | lp->a->read_csr(ioaddr, CSR0)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2504 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2505 | spin_unlock(&lp->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2506 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2507 | return IRQ_HANDLED; |
| 2508 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2509 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2510 | static int pcnet32_close(struct net_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2511 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2512 | unsigned long ioaddr = dev->base_addr; |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 2513 | struct pcnet32_private *lp = netdev_priv(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2514 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2515 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2516 | del_timer_sync(&lp->watchdog_timer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2517 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2518 | netif_stop_queue(dev); |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 2519 | napi_disable(&lp->napi); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2520 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2521 | spin_lock_irqsave(&lp->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2522 | |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 2523 | dev->stats.rx_missed_errors = lp->a->read_csr(ioaddr, 112); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2524 | |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 2525 | netif_printk(lp, ifdown, KERN_DEBUG, dev, |
| 2526 | "Shutting down ethercard, status was %2.2x\n", |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 2527 | lp->a->read_csr(ioaddr, CSR0)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2528 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2529 | /* We stop the PCNET32 here -- it occasionally polls memory if we don't. */ |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 2530 | lp->a->write_csr(ioaddr, CSR0, CSR0_STOP); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2531 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2532 | /* |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2533 | * Switch back to 16bit mode to avoid problems with dumb |
| 2534 | * DOS packet driver after a warm reboot |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2535 | */ |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 2536 | lp->a->write_bcr(ioaddr, 20, 4); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2537 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2538 | spin_unlock_irqrestore(&lp->lock, flags); |
| 2539 | |
| 2540 | free_irq(dev->irq, dev); |
| 2541 | |
| 2542 | spin_lock_irqsave(&lp->lock, flags); |
| 2543 | |
Don Fry | ac5bfe4 | 2006-06-29 13:55:27 -0700 | [diff] [blame] | 2544 | pcnet32_purge_rx_ring(dev); |
| 2545 | pcnet32_purge_tx_ring(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2546 | |
| 2547 | spin_unlock_irqrestore(&lp->lock, flags); |
| 2548 | |
| 2549 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2550 | } |
| 2551 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2552 | static struct net_device_stats *pcnet32_get_stats(struct net_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2553 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 2554 | struct pcnet32_private *lp = netdev_priv(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2555 | unsigned long ioaddr = dev->base_addr; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2556 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2557 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2558 | spin_lock_irqsave(&lp->lock, flags); |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 2559 | dev->stats.rx_missed_errors = lp->a->read_csr(ioaddr, 112); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2560 | spin_unlock_irqrestore(&lp->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2561 | |
Don Fry | 4f1e5ba | 2007-10-17 17:06:19 -0700 | [diff] [blame] | 2562 | return &dev->stats; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2563 | } |
| 2564 | |
| 2565 | /* taken from the sunlance driver, which it took from the depca driver */ |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2566 | static void pcnet32_load_multicast(struct net_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2567 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 2568 | struct pcnet32_private *lp = netdev_priv(dev); |
Don Fry | 6ecb766 | 2007-03-06 10:45:23 -0800 | [diff] [blame] | 2569 | volatile struct pcnet32_init_block *ib = lp->init_block; |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 2570 | volatile __le16 *mcast_table = (__le16 *)ib->filter; |
Jiri Pirko | 22bedad | 2010-04-01 21:22:57 +0000 | [diff] [blame] | 2571 | struct netdev_hw_addr *ha; |
Don Fry | df27f4a | 2006-06-29 13:55:02 -0700 | [diff] [blame] | 2572 | unsigned long ioaddr = dev->base_addr; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2573 | int i; |
| 2574 | u32 crc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2575 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2576 | /* set all multicast bits */ |
| 2577 | if (dev->flags & IFF_ALLMULTI) { |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 2578 | ib->filter[0] = cpu_to_le32(~0U); |
| 2579 | ib->filter[1] = cpu_to_le32(~0U); |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 2580 | lp->a->write_csr(ioaddr, PCNET32_MC_FILTER, 0xffff); |
| 2581 | lp->a->write_csr(ioaddr, PCNET32_MC_FILTER+1, 0xffff); |
| 2582 | lp->a->write_csr(ioaddr, PCNET32_MC_FILTER+2, 0xffff); |
| 2583 | lp->a->write_csr(ioaddr, PCNET32_MC_FILTER+3, 0xffff); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2584 | return; |
| 2585 | } |
| 2586 | /* clear the multicast filter */ |
| 2587 | ib->filter[0] = 0; |
| 2588 | ib->filter[1] = 0; |
| 2589 | |
| 2590 | /* Add addresses */ |
Jiri Pirko | 22bedad | 2010-04-01 21:22:57 +0000 | [diff] [blame] | 2591 | netdev_for_each_mc_addr(ha, dev) { |
Tobias Klauser | 498d8e2 | 2011-07-07 22:06:26 +0000 | [diff] [blame] | 2592 | crc = ether_crc_le(6, ha->addr); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2593 | crc = crc >> 26; |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 2594 | mcast_table[crc >> 4] |= cpu_to_le16(1 << (crc & 0xf)); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2595 | } |
Don Fry | df27f4a | 2006-06-29 13:55:02 -0700 | [diff] [blame] | 2596 | for (i = 0; i < 4; i++) |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 2597 | lp->a->write_csr(ioaddr, PCNET32_MC_FILTER + i, |
Don Fry | df27f4a | 2006-06-29 13:55:02 -0700 | [diff] [blame] | 2598 | le16_to_cpu(mcast_table[i])); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2599 | } |
| 2600 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2601 | /* |
| 2602 | * Set or clear the multicast filter for this adaptor. |
| 2603 | */ |
| 2604 | static void pcnet32_set_multicast_list(struct net_device *dev) |
| 2605 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2606 | unsigned long ioaddr = dev->base_addr, flags; |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 2607 | struct pcnet32_private *lp = netdev_priv(dev); |
Don Fry | df27f4a | 2006-06-29 13:55:02 -0700 | [diff] [blame] | 2608 | int csr15, suspended; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2609 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2610 | spin_lock_irqsave(&lp->lock, flags); |
Don Fry | df27f4a | 2006-06-29 13:55:02 -0700 | [diff] [blame] | 2611 | suspended = pcnet32_suspend(dev, &flags, 0); |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 2612 | csr15 = lp->a->read_csr(ioaddr, CSR15); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2613 | if (dev->flags & IFF_PROMISC) { |
| 2614 | /* Log any net taps. */ |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 2615 | netif_info(lp, hw, dev, "Promiscuous mode enabled\n"); |
Don Fry | 6ecb766 | 2007-03-06 10:45:23 -0800 | [diff] [blame] | 2616 | lp->init_block->mode = |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 2617 | cpu_to_le16(0x8000 | (lp->options & PCNET32_PORT_PORTSEL) << |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2618 | 7); |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 2619 | lp->a->write_csr(ioaddr, CSR15, csr15 | 0x8000); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2620 | } else { |
Don Fry | 6ecb766 | 2007-03-06 10:45:23 -0800 | [diff] [blame] | 2621 | lp->init_block->mode = |
Al Viro | 3e33545 | 2007-08-23 00:45:46 -0400 | [diff] [blame] | 2622 | cpu_to_le16((lp->options & PCNET32_PORT_PORTSEL) << 7); |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 2623 | lp->a->write_csr(ioaddr, CSR15, csr15 & 0x7fff); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2624 | pcnet32_load_multicast(dev); |
| 2625 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2626 | |
Don Fry | df27f4a | 2006-06-29 13:55:02 -0700 | [diff] [blame] | 2627 | if (suspended) { |
| 2628 | int csr5; |
| 2629 | /* clear SUSPEND (SPND) - CSR5 bit 0 */ |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 2630 | csr5 = lp->a->read_csr(ioaddr, CSR5); |
| 2631 | lp->a->write_csr(ioaddr, CSR5, csr5 & (~CSR5_SUSPEND)); |
Don Fry | b368a3f | 2006-09-13 10:16:07 -0700 | [diff] [blame] | 2632 | } else { |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 2633 | lp->a->write_csr(ioaddr, CSR0, CSR0_STOP); |
Don Fry | df27f4a | 2006-06-29 13:55:02 -0700 | [diff] [blame] | 2634 | pcnet32_restart(dev, CSR0_NORMAL); |
| 2635 | netif_wake_queue(dev); |
| 2636 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2637 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2638 | spin_unlock_irqrestore(&lp->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2639 | } |
| 2640 | |
| 2641 | /* This routine assumes that the lp->lock is held */ |
| 2642 | static int mdio_read(struct net_device *dev, int phy_id, int reg_num) |
| 2643 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 2644 | struct pcnet32_private *lp = netdev_priv(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2645 | unsigned long ioaddr = dev->base_addr; |
| 2646 | u16 val_out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2647 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2648 | if (!lp->mii) |
| 2649 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2650 | |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 2651 | lp->a->write_bcr(ioaddr, 33, ((phy_id & 0x1f) << 5) | (reg_num & 0x1f)); |
| 2652 | val_out = lp->a->read_bcr(ioaddr, 34); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2653 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2654 | return val_out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2655 | } |
| 2656 | |
| 2657 | /* This routine assumes that the lp->lock is held */ |
| 2658 | static void mdio_write(struct net_device *dev, int phy_id, int reg_num, int val) |
| 2659 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 2660 | struct pcnet32_private *lp = netdev_priv(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2661 | unsigned long ioaddr = dev->base_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2662 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2663 | if (!lp->mii) |
| 2664 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2665 | |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 2666 | lp->a->write_bcr(ioaddr, 33, ((phy_id & 0x1f) << 5) | (reg_num & 0x1f)); |
| 2667 | lp->a->write_bcr(ioaddr, 34, val); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2668 | } |
| 2669 | |
| 2670 | static int pcnet32_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) |
| 2671 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 2672 | struct pcnet32_private *lp = netdev_priv(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2673 | int rc; |
| 2674 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2675 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2676 | /* SIOC[GS]MIIxxx ioctls */ |
| 2677 | if (lp->mii) { |
| 2678 | spin_lock_irqsave(&lp->lock, flags); |
| 2679 | rc = generic_mii_ioctl(&lp->mii_if, if_mii(rq), cmd, NULL); |
| 2680 | spin_unlock_irqrestore(&lp->lock, flags); |
| 2681 | } else { |
| 2682 | rc = -EOPNOTSUPP; |
| 2683 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2684 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2685 | return rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2686 | } |
| 2687 | |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 2688 | static int pcnet32_check_otherphy(struct net_device *dev) |
| 2689 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 2690 | struct pcnet32_private *lp = netdev_priv(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2691 | struct mii_if_info mii = lp->mii_if; |
| 2692 | u16 bmcr; |
| 2693 | int i; |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 2694 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2695 | for (i = 0; i < PCNET32_MAX_PHYS; i++) { |
| 2696 | if (i == lp->mii_if.phy_id) |
| 2697 | continue; /* skip active phy */ |
| 2698 | if (lp->phymask & (1 << i)) { |
| 2699 | mii.phy_id = i; |
| 2700 | if (mii_link_ok(&mii)) { |
| 2701 | /* found PHY with active link */ |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 2702 | netif_info(lp, link, dev, "Using PHY number %d\n", |
| 2703 | i); |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 2704 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2705 | /* isolate inactive phy */ |
| 2706 | bmcr = |
| 2707 | mdio_read(dev, lp->mii_if.phy_id, MII_BMCR); |
| 2708 | mdio_write(dev, lp->mii_if.phy_id, MII_BMCR, |
| 2709 | bmcr | BMCR_ISOLATE); |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 2710 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2711 | /* de-isolate new phy */ |
| 2712 | bmcr = mdio_read(dev, i, MII_BMCR); |
| 2713 | mdio_write(dev, i, MII_BMCR, |
| 2714 | bmcr & ~BMCR_ISOLATE); |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 2715 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2716 | /* set new phy address */ |
| 2717 | lp->mii_if.phy_id = i; |
| 2718 | return 1; |
| 2719 | } |
| 2720 | } |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 2721 | } |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2722 | return 0; |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 2723 | } |
| 2724 | |
| 2725 | /* |
| 2726 | * Show the status of the media. Similar to mii_check_media however it |
| 2727 | * correctly shows the link speed for all (tested) pcnet32 variants. |
| 2728 | * Devices with no mii just report link state without speed. |
| 2729 | * |
| 2730 | * Caller is assumed to hold and release the lp->lock. |
| 2731 | */ |
| 2732 | |
| 2733 | static void pcnet32_check_media(struct net_device *dev, int verbose) |
| 2734 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 2735 | struct pcnet32_private *lp = netdev_priv(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2736 | int curr_link; |
| 2737 | int prev_link = netif_carrier_ok(dev) ? 1 : 0; |
| 2738 | u32 bcr9; |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 2739 | |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 2740 | if (lp->mii) { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2741 | curr_link = mii_link_ok(&lp->mii_if); |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 2742 | } else { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2743 | ulong ioaddr = dev->base_addr; /* card base I/O address */ |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 2744 | curr_link = (lp->a->read_bcr(ioaddr, 4) != 0xc0); |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 2745 | } |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2746 | if (!curr_link) { |
| 2747 | if (prev_link || verbose) { |
| 2748 | netif_carrier_off(dev); |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 2749 | netif_info(lp, link, dev, "link down\n"); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2750 | } |
| 2751 | if (lp->phycount > 1) { |
| 2752 | curr_link = pcnet32_check_otherphy(dev); |
| 2753 | prev_link = 0; |
| 2754 | } |
| 2755 | } else if (verbose || !prev_link) { |
| 2756 | netif_carrier_on(dev); |
| 2757 | if (lp->mii) { |
| 2758 | if (netif_msg_link(lp)) { |
David Decotigny | 8ae6dac | 2011-04-27 18:32:38 +0000 | [diff] [blame] | 2759 | struct ethtool_cmd ecmd = { |
| 2760 | .cmd = ETHTOOL_GSET }; |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2761 | mii_ethtool_gset(&lp->mii_if, &ecmd); |
David Decotigny | 8ae6dac | 2011-04-27 18:32:38 +0000 | [diff] [blame] | 2762 | netdev_info(dev, "link up, %uMbps, %s-duplex\n", |
| 2763 | ethtool_cmd_speed(&ecmd), |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 2764 | (ecmd.duplex == DUPLEX_FULL) |
| 2765 | ? "full" : "half"); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2766 | } |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 2767 | bcr9 = lp->a->read_bcr(dev->base_addr, 9); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2768 | if ((bcr9 & (1 << 0)) != lp->mii_if.full_duplex) { |
| 2769 | if (lp->mii_if.full_duplex) |
| 2770 | bcr9 |= (1 << 0); |
| 2771 | else |
| 2772 | bcr9 &= ~(1 << 0); |
stephen hemminger | 1d70cb0 | 2011-09-16 11:06:26 +0000 | [diff] [blame] | 2773 | lp->a->write_bcr(dev->base_addr, 9, bcr9); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2774 | } |
| 2775 | } else { |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 2776 | netif_info(lp, link, dev, "link up\n"); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2777 | } |
| 2778 | } |
Don Fry | ac62ef0 | 2006-03-20 15:26:03 -0800 | [diff] [blame] | 2779 | } |
| 2780 | |
| 2781 | /* |
| 2782 | * Check for loss of link and link establishment. |
| 2783 | * Can not use mii_check_media because it does nothing if mode is forced. |
| 2784 | */ |
| 2785 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2786 | static void pcnet32_watchdog(struct net_device *dev) |
| 2787 | { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 2788 | struct pcnet32_private *lp = netdev_priv(dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2789 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2790 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2791 | /* Print the link status if it has changed */ |
| 2792 | spin_lock_irqsave(&lp->lock, flags); |
| 2793 | pcnet32_check_media(dev, 0); |
| 2794 | spin_unlock_irqrestore(&lp->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2795 | |
Stephen Hemminger | 283a21d | 2009-01-08 11:17:13 -0800 | [diff] [blame] | 2796 | mod_timer(&lp->watchdog_timer, round_jiffies(PCNET32_WATCHDOG_TIMEOUT)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2797 | } |
| 2798 | |
Don Fry | 917270c | 2007-08-26 21:22:32 -0700 | [diff] [blame] | 2799 | static int pcnet32_pm_suspend(struct pci_dev *pdev, pm_message_t state) |
| 2800 | { |
| 2801 | struct net_device *dev = pci_get_drvdata(pdev); |
| 2802 | |
| 2803 | if (netif_running(dev)) { |
| 2804 | netif_device_detach(dev); |
| 2805 | pcnet32_close(dev); |
| 2806 | } |
| 2807 | pci_save_state(pdev); |
| 2808 | pci_set_power_state(pdev, pci_choose_state(pdev, state)); |
| 2809 | return 0; |
| 2810 | } |
| 2811 | |
| 2812 | static int pcnet32_pm_resume(struct pci_dev *pdev) |
| 2813 | { |
| 2814 | struct net_device *dev = pci_get_drvdata(pdev); |
| 2815 | |
| 2816 | pci_set_power_state(pdev, PCI_D0); |
| 2817 | pci_restore_state(pdev); |
| 2818 | |
| 2819 | if (netif_running(dev)) { |
| 2820 | pcnet32_open(dev); |
| 2821 | netif_device_attach(dev); |
| 2822 | } |
| 2823 | return 0; |
| 2824 | } |
| 2825 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2826 | static void __devexit pcnet32_remove_one(struct pci_dev *pdev) |
| 2827 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2828 | struct net_device *dev = pci_get_drvdata(pdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2829 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2830 | if (dev) { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 2831 | struct pcnet32_private *lp = netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2832 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2833 | unregister_netdev(dev); |
| 2834 | pcnet32_free_ring(dev); |
| 2835 | release_region(dev->base_addr, PCNET32_TOTAL_SIZE); |
Jeff Garzik | 7d2e3cb | 2008-05-13 01:41:58 -0400 | [diff] [blame] | 2836 | pci_free_consistent(lp->pci_dev, sizeof(*lp->init_block), |
Don Fry | 6ecb766 | 2007-03-06 10:45:23 -0800 | [diff] [blame] | 2837 | lp->init_block, lp->init_dma_addr); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2838 | free_netdev(dev); |
| 2839 | pci_disable_device(pdev); |
| 2840 | pci_set_drvdata(pdev, NULL); |
| 2841 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2842 | } |
| 2843 | |
| 2844 | static struct pci_driver pcnet32_driver = { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2845 | .name = DRV_NAME, |
| 2846 | .probe = pcnet32_probe_pci, |
| 2847 | .remove = __devexit_p(pcnet32_remove_one), |
| 2848 | .id_table = pcnet32_pci_tbl, |
Don Fry | 917270c | 2007-08-26 21:22:32 -0700 | [diff] [blame] | 2849 | .suspend = pcnet32_pm_suspend, |
| 2850 | .resume = pcnet32_pm_resume, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2851 | }; |
| 2852 | |
| 2853 | /* An additional parameter that may be passed in... */ |
| 2854 | static int debug = -1; |
| 2855 | static int tx_start_pt = -1; |
| 2856 | static int pcnet32_have_pci; |
| 2857 | |
| 2858 | module_param(debug, int, 0); |
| 2859 | MODULE_PARM_DESC(debug, DRV_NAME " debug level"); |
| 2860 | module_param(max_interrupt_work, int, 0); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2861 | MODULE_PARM_DESC(max_interrupt_work, |
| 2862 | DRV_NAME " maximum events handled per interrupt"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2863 | module_param(rx_copybreak, int, 0); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2864 | MODULE_PARM_DESC(rx_copybreak, |
| 2865 | DRV_NAME " copy breakpoint for copy-only-tiny-frames"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2866 | module_param(tx_start_pt, int, 0); |
| 2867 | MODULE_PARM_DESC(tx_start_pt, DRV_NAME " transmit start point (0-3)"); |
| 2868 | module_param(pcnet32vlb, int, 0); |
| 2869 | MODULE_PARM_DESC(pcnet32vlb, DRV_NAME " Vesa local bus (VLB) support (0/1)"); |
| 2870 | module_param_array(options, int, NULL, 0); |
| 2871 | MODULE_PARM_DESC(options, DRV_NAME " initial option setting(s) (0-15)"); |
| 2872 | module_param_array(full_duplex, int, NULL, 0); |
| 2873 | MODULE_PARM_DESC(full_duplex, DRV_NAME " full duplex setting(s) (1)"); |
| 2874 | /* Module Parameter for HomePNA cards added by Patrick Simmons, 2004 */ |
| 2875 | module_param_array(homepna, int, NULL, 0); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2876 | MODULE_PARM_DESC(homepna, |
| 2877 | DRV_NAME |
| 2878 | " mode for 79C978 cards (1 for HomePNA, 0 for Ethernet, default Ethernet"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2879 | |
| 2880 | MODULE_AUTHOR("Thomas Bogendoerfer"); |
| 2881 | MODULE_DESCRIPTION("Driver for PCnet32 and PCnetPCI based ethercards"); |
| 2882 | MODULE_LICENSE("GPL"); |
| 2883 | |
| 2884 | #define PCNET32_MSG_DEFAULT (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK) |
| 2885 | |
| 2886 | static int __init pcnet32_init_module(void) |
| 2887 | { |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 2888 | pr_info("%s", version); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2889 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2890 | pcnet32_debug = netif_msg_init(debug, PCNET32_MSG_DEFAULT); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2891 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2892 | if ((tx_start_pt >= 0) && (tx_start_pt <= 3)) |
| 2893 | tx_start = tx_start_pt; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2894 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2895 | /* find the PCI devices */ |
Jeff Garzik | 2991762 | 2006-08-19 17:48:59 -0400 | [diff] [blame] | 2896 | if (!pci_register_driver(&pcnet32_driver)) |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2897 | pcnet32_have_pci = 1; |
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 | /* should we find any remaining VLbus devices ? */ |
| 2900 | if (pcnet32vlb) |
Don Fry | dcaf976 | 2006-06-29 13:52:29 -0700 | [diff] [blame] | 2901 | pcnet32_probe_vlbus(pcnet32_portlist); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2902 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2903 | if (cards_found && (pcnet32_debug & NETIF_MSG_PROBE)) |
Joe Perches | 13ff83b | 2010-02-15 08:34:25 +0000 | [diff] [blame] | 2904 | pr_info("%d cards_found\n", cards_found); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2905 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2906 | return (pcnet32_have_pci + cards_found) ? 0 : -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2907 | } |
| 2908 | |
| 2909 | static void __exit pcnet32_cleanup_module(void) |
| 2910 | { |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2911 | struct net_device *next_dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2912 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2913 | while (pcnet32_dev) { |
Don Fry | 1e56a4b | 2007-03-06 10:55:00 -0800 | [diff] [blame] | 2914 | struct pcnet32_private *lp = netdev_priv(pcnet32_dev); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2915 | next_dev = lp->next; |
| 2916 | unregister_netdev(pcnet32_dev); |
| 2917 | pcnet32_free_ring(pcnet32_dev); |
| 2918 | release_region(pcnet32_dev->base_addr, PCNET32_TOTAL_SIZE); |
Jeff Garzik | 7d2e3cb | 2008-05-13 01:41:58 -0400 | [diff] [blame] | 2919 | pci_free_consistent(lp->pci_dev, sizeof(*lp->init_block), |
Don Fry | 6ecb766 | 2007-03-06 10:45:23 -0800 | [diff] [blame] | 2920 | lp->init_block, lp->init_dma_addr); |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2921 | free_netdev(pcnet32_dev); |
| 2922 | pcnet32_dev = next_dev; |
| 2923 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2924 | |
Jeff Garzik | 4a5e8e2 | 2006-03-21 16:15:44 -0500 | [diff] [blame] | 2925 | if (pcnet32_have_pci) |
| 2926 | pci_unregister_driver(&pcnet32_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2927 | } |
| 2928 | |
| 2929 | module_init(pcnet32_init_module); |
| 2930 | module_exit(pcnet32_cleanup_module); |
| 2931 | |
| 2932 | /* |
| 2933 | * Local variables: |
| 2934 | * c-indent-level: 4 |
| 2935 | * tab-width: 8 |
| 2936 | * End: |
| 2937 | */ |