Francois Romieu | 890e8d0 | 2005-07-30 13:08:43 +0200 | [diff] [blame] | 1 | /* |
| 2 | sis190.c: Silicon Integrated Systems SiS190 ethernet driver |
| 3 | |
| 4 | Copyright (c) 2003 K.M. Liu <kmliu@sis.com> |
| 5 | Copyright (c) 2003, 2004 Jeff Garzik <jgarzik@pobox.com> |
| 6 | Copyright (c) 2003, 2004, 2005 Francois Romieu <romieu@fr.zoreil.com> |
| 7 | |
Francois Romieu | 40292fb | 2005-07-30 13:12:06 +0200 | [diff] [blame] | 8 | Based on r8169.c, tg3.c, 8139cp.c, skge.c, epic100.c and SiS 190/191 |
| 9 | genuine driver. |
Francois Romieu | 890e8d0 | 2005-07-30 13:08:43 +0200 | [diff] [blame] | 10 | |
| 11 | This software may be used and distributed according to the terms of |
| 12 | the GNU General Public License (GPL), incorporated herein by reference. |
| 13 | Drivers based on or derived from this code fall under the GPL and must |
| 14 | retain the authorship, copyright and license notice. This file is not |
| 15 | a complete program and may only be used when the entire operating |
| 16 | system is licensed under the GPL. |
| 17 | |
| 18 | See the file COPYING in this distribution for more information. |
| 19 | |
| 20 | */ |
| 21 | |
| 22 | #include <linux/module.h> |
| 23 | #include <linux/moduleparam.h> |
| 24 | #include <linux/netdevice.h> |
Francois Romieu | 43afb94 | 2005-07-30 13:10:21 +0200 | [diff] [blame] | 25 | #include <linux/rtnetlink.h> |
Francois Romieu | 890e8d0 | 2005-07-30 13:08:43 +0200 | [diff] [blame] | 26 | #include <linux/etherdevice.h> |
| 27 | #include <linux/ethtool.h> |
| 28 | #include <linux/pci.h> |
| 29 | #include <linux/mii.h> |
| 30 | #include <linux/delay.h> |
| 31 | #include <linux/crc32.h> |
| 32 | #include <linux/dma-mapping.h> |
| 33 | #include <asm/irq.h> |
| 34 | |
| 35 | #define net_drv(p, arg...) if (netif_msg_drv(p)) \ |
| 36 | printk(arg) |
| 37 | #define net_probe(p, arg...) if (netif_msg_probe(p)) \ |
| 38 | printk(arg) |
| 39 | #define net_link(p, arg...) if (netif_msg_link(p)) \ |
| 40 | printk(arg) |
| 41 | #define net_intr(p, arg...) if (netif_msg_intr(p)) \ |
| 42 | printk(arg) |
| 43 | #define net_tx_err(p, arg...) if (netif_msg_tx_err(p)) \ |
| 44 | printk(arg) |
| 45 | |
| 46 | #ifdef CONFIG_SIS190_NAPI |
| 47 | #define NAPI_SUFFIX "-NAPI" |
| 48 | #else |
| 49 | #define NAPI_SUFFIX "" |
| 50 | #endif |
| 51 | |
| 52 | #define DRV_VERSION "1.2" NAPI_SUFFIX |
| 53 | #define DRV_NAME "sis190" |
| 54 | #define SIS190_DRIVER_NAME DRV_NAME " Gigabit Ethernet driver " DRV_VERSION |
| 55 | #define PFX DRV_NAME ": " |
| 56 | |
| 57 | #ifdef CONFIG_SIS190_NAPI |
| 58 | #define sis190_rx_skb netif_receive_skb |
| 59 | #define sis190_rx_quota(count, quota) min(count, quota) |
| 60 | #else |
| 61 | #define sis190_rx_skb netif_rx |
| 62 | #define sis190_rx_quota(count, quota) count |
| 63 | #endif |
| 64 | |
| 65 | #define MAC_ADDR_LEN 6 |
| 66 | |
| 67 | #define NUM_TX_DESC 64 |
| 68 | #define NUM_RX_DESC 64 |
| 69 | #define TX_RING_BYTES (NUM_TX_DESC * sizeof(struct TxDesc)) |
| 70 | #define RX_RING_BYTES (NUM_RX_DESC * sizeof(struct RxDesc)) |
| 71 | #define RX_BUF_SIZE 1536 |
Francois Romieu | 8b5641d | 2005-07-30 13:13:03 +0200 | [diff] [blame^] | 72 | #define RX_BUF_MASK 0xfff8 |
Francois Romieu | 890e8d0 | 2005-07-30 13:08:43 +0200 | [diff] [blame] | 73 | |
| 74 | #define SIS190_REGS_SIZE 0x80 |
| 75 | #define SIS190_TX_TIMEOUT (6*HZ) |
| 76 | #define SIS190_PHY_TIMEOUT (10*HZ) |
| 77 | #define SIS190_MSG_DEFAULT (NETIF_MSG_DRV | NETIF_MSG_PROBE | \ |
| 78 | NETIF_MSG_LINK | NETIF_MSG_IFUP | \ |
| 79 | NETIF_MSG_IFDOWN) |
| 80 | |
| 81 | /* Enhanced PHY access register bit definitions */ |
| 82 | #define EhnMIIread 0x0000 |
| 83 | #define EhnMIIwrite 0x0020 |
| 84 | #define EhnMIIdataShift 16 |
| 85 | #define EhnMIIpmdShift 6 /* 7016 only */ |
| 86 | #define EhnMIIregShift 11 |
| 87 | #define EhnMIIreq 0x0010 |
| 88 | #define EhnMIInotDone 0x0010 |
| 89 | |
| 90 | /* Write/read MMIO register */ |
| 91 | #define SIS_W8(reg, val) writeb ((val), ioaddr + (reg)) |
| 92 | #define SIS_W16(reg, val) writew ((val), ioaddr + (reg)) |
| 93 | #define SIS_W32(reg, val) writel ((val), ioaddr + (reg)) |
| 94 | #define SIS_R8(reg) readb (ioaddr + (reg)) |
| 95 | #define SIS_R16(reg) readw (ioaddr + (reg)) |
| 96 | #define SIS_R32(reg) readl (ioaddr + (reg)) |
| 97 | |
| 98 | #define SIS_PCI_COMMIT() SIS_R32(IntrControl) |
| 99 | |
| 100 | enum sis190_registers { |
| 101 | TxControl = 0x00, |
| 102 | TxDescStartAddr = 0x04, |
Francois Romieu | 188f23b | 2005-07-30 13:11:43 +0200 | [diff] [blame] | 103 | rsv0 = 0x08, // reserved |
| 104 | TxSts = 0x0c, // unused (Control/Status) |
Francois Romieu | 890e8d0 | 2005-07-30 13:08:43 +0200 | [diff] [blame] | 105 | RxControl = 0x10, |
| 106 | RxDescStartAddr = 0x14, |
Francois Romieu | 188f23b | 2005-07-30 13:11:43 +0200 | [diff] [blame] | 107 | rsv1 = 0x18, // reserved |
| 108 | RxSts = 0x1c, // unused |
Francois Romieu | 890e8d0 | 2005-07-30 13:08:43 +0200 | [diff] [blame] | 109 | IntrStatus = 0x20, |
| 110 | IntrMask = 0x24, |
| 111 | IntrControl = 0x28, |
Francois Romieu | 188f23b | 2005-07-30 13:11:43 +0200 | [diff] [blame] | 112 | IntrTimer = 0x2c, // unused (Interupt Timer) |
| 113 | PMControl = 0x30, // unused (Power Mgmt Control/Status) |
| 114 | rsv2 = 0x34, // reserved |
Francois Romieu | 890e8d0 | 2005-07-30 13:08:43 +0200 | [diff] [blame] | 115 | ROMControl = 0x38, |
| 116 | ROMInterface = 0x3c, |
| 117 | StationControl = 0x40, |
| 118 | GMIIControl = 0x44, |
Francois Romieu | 188f23b | 2005-07-30 13:11:43 +0200 | [diff] [blame] | 119 | GIoCR = 0x48, // unused (GMAC IO Compensation) |
| 120 | GIoCtrl = 0x4c, // unused (GMAC IO Control) |
Francois Romieu | 890e8d0 | 2005-07-30 13:08:43 +0200 | [diff] [blame] | 121 | TxMacControl = 0x50, |
Francois Romieu | 188f23b | 2005-07-30 13:11:43 +0200 | [diff] [blame] | 122 | TxLimit = 0x54, // unused (Tx MAC Timer/TryLimit) |
| 123 | RGDelay = 0x58, // unused (RGMII Tx Internal Delay) |
| 124 | rsv3 = 0x5c, // reserved |
Francois Romieu | 890e8d0 | 2005-07-30 13:08:43 +0200 | [diff] [blame] | 125 | RxMacControl = 0x60, |
| 126 | RxMacAddr = 0x62, |
| 127 | RxHashTable = 0x68, |
| 128 | // Undocumented = 0x6c, |
Francois Romieu | 188f23b | 2005-07-30 13:11:43 +0200 | [diff] [blame] | 129 | RxWolCtrl = 0x70, |
| 130 | RxWolData = 0x74, // unused (Rx WOL Data Access) |
| 131 | RxMPSControl = 0x78, // unused (Rx MPS Control) |
| 132 | rsv4 = 0x7c, // reserved |
Francois Romieu | 890e8d0 | 2005-07-30 13:08:43 +0200 | [diff] [blame] | 133 | }; |
| 134 | |
| 135 | enum sis190_register_content { |
| 136 | /* IntrStatus */ |
| 137 | SoftInt = 0x40000000, // unused |
| 138 | Timeup = 0x20000000, // unused |
| 139 | PauseFrame = 0x00080000, // unused |
| 140 | MagicPacket = 0x00040000, // unused |
| 141 | WakeupFrame = 0x00020000, // unused |
| 142 | LinkChange = 0x00010000, |
| 143 | RxQEmpty = 0x00000080, |
| 144 | RxQInt = 0x00000040, |
| 145 | TxQ1Empty = 0x00000020, // unused |
| 146 | TxQ1Int = 0x00000010, |
| 147 | TxQ0Empty = 0x00000008, // unused |
| 148 | TxQ0Int = 0x00000004, |
| 149 | RxHalt = 0x00000002, |
| 150 | TxHalt = 0x00000001, |
| 151 | |
| 152 | /* RxStatusDesc */ |
| 153 | RxRES = 0x00200000, // unused |
| 154 | RxCRC = 0x00080000, |
| 155 | RxRUNT = 0x00100000, // unused |
| 156 | RxRWT = 0x00400000, // unused |
| 157 | |
| 158 | /* {Rx/Tx}CmdBits */ |
| 159 | CmdReset = 0x10, |
| 160 | CmdRxEnb = 0x08, // unused |
| 161 | CmdTxEnb = 0x01, |
| 162 | RxBufEmpty = 0x01, // unused |
| 163 | |
| 164 | /* Cfg9346Bits */ |
| 165 | Cfg9346_Lock = 0x00, // unused |
| 166 | Cfg9346_Unlock = 0xc0, // unused |
| 167 | |
| 168 | /* RxMacControl */ |
| 169 | AcceptErr = 0x20, // unused |
| 170 | AcceptRunt = 0x10, // unused |
| 171 | AcceptBroadcast = 0x0800, |
| 172 | AcceptMulticast = 0x0400, |
| 173 | AcceptMyPhys = 0x0200, |
| 174 | AcceptAllPhys = 0x0100, |
| 175 | |
| 176 | /* RxConfigBits */ |
| 177 | RxCfgFIFOShift = 13, |
| 178 | RxCfgDMAShift = 8, // 0x1a in RxControl ? |
| 179 | |
| 180 | /* TxConfigBits */ |
| 181 | TxInterFrameGapShift = 24, |
| 182 | TxDMAShift = 8, /* DMA burst value (0-7) is shift this many bits */ |
| 183 | |
| 184 | /* StationControl */ |
| 185 | _1000bpsF = 0x1c00, |
| 186 | _1000bpsH = 0x0c00, |
| 187 | _100bpsF = 0x1800, |
| 188 | _100bpsH = 0x0800, |
| 189 | _10bpsF = 0x1400, |
| 190 | _10bpsH = 0x0400, |
| 191 | |
| 192 | LinkStatus = 0x02, // unused |
| 193 | FullDup = 0x01, // unused |
| 194 | |
| 195 | /* TBICSRBit */ |
| 196 | TBILinkOK = 0x02000000, // unused |
| 197 | }; |
| 198 | |
| 199 | struct TxDesc { |
| 200 | u32 PSize; |
| 201 | u32 status; |
| 202 | u32 addr; |
| 203 | u32 size; |
| 204 | }; |
| 205 | |
| 206 | struct RxDesc { |
| 207 | u32 PSize; |
| 208 | u32 status; |
| 209 | u32 addr; |
| 210 | u32 size; |
| 211 | }; |
| 212 | |
| 213 | enum _DescStatusBit { |
| 214 | /* _Desc.status */ |
| 215 | OWNbit = 0x80000000, |
| 216 | INTbit = 0x40000000, |
| 217 | DEFbit = 0x00200000, |
| 218 | CRCbit = 0x00020000, |
| 219 | PADbit = 0x00010000, |
| 220 | /* _Desc.size */ |
| 221 | RingEnd = (1 << 31), |
| 222 | /* _Desc.PSize */ |
| 223 | RxSizeMask = 0x0000ffff |
| 224 | }; |
| 225 | |
Francois Romieu | 40292fb | 2005-07-30 13:12:06 +0200 | [diff] [blame] | 226 | enum sis190_eeprom_access_register_bits { |
| 227 | EECS = 0x00000001, // unused |
| 228 | EECLK = 0x00000002, // unused |
| 229 | EEDO = 0x00000008, // unused |
| 230 | EEDI = 0x00000004, // unused |
| 231 | EEREQ = 0x00000080, |
| 232 | EEROP = 0x00000200, |
| 233 | EEWOP = 0x00000100 // unused |
| 234 | }; |
| 235 | |
Francois Romieu | 830fb7d | 2005-07-30 13:12:37 +0200 | [diff] [blame] | 236 | /* EEPROM Addresses */ |
| 237 | enum sis190_eeprom_address { |
| 238 | EEPROMSignature = 0x00, |
| 239 | EEPROMCLK = 0x01, // unused |
| 240 | EEPROMInfo = 0x02, |
| 241 | EEPROMMACAddr = 0x03 |
| 242 | }; |
| 243 | |
Francois Romieu | 890e8d0 | 2005-07-30 13:08:43 +0200 | [diff] [blame] | 244 | struct sis190_private { |
| 245 | void __iomem *mmio_addr; |
| 246 | struct pci_dev *pci_dev; |
| 247 | struct net_device_stats stats; |
| 248 | spinlock_t lock; |
| 249 | u32 rx_buf_sz; |
| 250 | u32 cur_rx; |
| 251 | u32 cur_tx; |
| 252 | u32 dirty_rx; |
| 253 | u32 dirty_tx; |
| 254 | dma_addr_t rx_dma; |
| 255 | dma_addr_t tx_dma; |
| 256 | struct RxDesc *RxDescRing; |
| 257 | struct TxDesc *TxDescRing; |
| 258 | struct sk_buff *Rx_skbuff[NUM_RX_DESC]; |
| 259 | struct sk_buff *Tx_skbuff[NUM_TX_DESC]; |
| 260 | struct work_struct phy_task; |
| 261 | struct timer_list timer; |
| 262 | u32 msg_enable; |
Francois Romieu | 43afb94 | 2005-07-30 13:10:21 +0200 | [diff] [blame] | 263 | struct mii_if_info mii_if; |
Francois Romieu | 890e8d0 | 2005-07-30 13:08:43 +0200 | [diff] [blame] | 264 | }; |
| 265 | |
| 266 | const static struct { |
| 267 | const char *name; |
| 268 | u8 version; /* depend on docs */ |
| 269 | u32 RxConfigMask; /* clear the bits supported by this chip */ |
| 270 | } sis_chip_info[] = { |
| 271 | { DRV_NAME, 0x00, 0xff7e1880, }, |
| 272 | }; |
| 273 | |
| 274 | static struct pci_device_id sis190_pci_tbl[] __devinitdata = { |
| 275 | { PCI_DEVICE(PCI_VENDOR_ID_SI, 0x0190), 0, 0, 0 }, |
| 276 | { 0, }, |
| 277 | }; |
| 278 | |
| 279 | MODULE_DEVICE_TABLE(pci, sis190_pci_tbl); |
| 280 | |
| 281 | static int rx_copybreak = 200; |
| 282 | |
| 283 | static struct { |
| 284 | u32 msg_enable; |
| 285 | } debug = { -1 }; |
| 286 | |
| 287 | MODULE_DESCRIPTION("SiS sis190 Gigabit Ethernet driver"); |
| 288 | module_param(rx_copybreak, int, 0); |
| 289 | MODULE_PARM_DESC(rx_copybreak, "Copy breakpoint for copy-only-tiny-frames"); |
| 290 | module_param_named(debug, debug.msg_enable, int, 0); |
| 291 | MODULE_PARM_DESC(debug, "Debug verbosity level (0=none, ..., 16=all)"); |
| 292 | MODULE_AUTHOR("K.M. Liu <kmliu@sis.com>, Ueimor <romieu@fr.zoreil.com>"); |
| 293 | MODULE_VERSION(DRV_VERSION); |
| 294 | MODULE_LICENSE("GPL"); |
| 295 | |
| 296 | static const u32 sis190_intr_mask = |
| 297 | RxQEmpty | RxQInt | TxQ1Int | TxQ0Int | RxHalt | TxHalt; |
| 298 | |
| 299 | /* |
| 300 | * Maximum number of multicast addresses to filter (vs. Rx-all-multicast). |
| 301 | * The chips use a 64 element hash table based on the Ethernet CRC. |
| 302 | */ |
| 303 | static int multicast_filter_limit = 32; |
| 304 | |
| 305 | static void __mdio_cmd(void __iomem *ioaddr, u32 ctl) |
| 306 | { |
| 307 | unsigned int i; |
| 308 | |
| 309 | SIS_W32(GMIIControl, ctl); |
| 310 | |
| 311 | msleep(1); |
| 312 | |
| 313 | for (i = 0; i < 100; i++) { |
| 314 | if (!(SIS_R32(GMIIControl) & EhnMIInotDone)) |
| 315 | break; |
| 316 | msleep(1); |
| 317 | } |
| 318 | |
| 319 | if (i > 999) |
| 320 | printk(KERN_ERR PFX "PHY command failed !\n"); |
| 321 | } |
| 322 | |
| 323 | static void mdio_write(void __iomem *ioaddr, int reg, int val) |
| 324 | { |
| 325 | u32 pmd = 1; |
| 326 | |
| 327 | __mdio_cmd(ioaddr, EhnMIIreq | EhnMIIwrite | |
| 328 | (((u32) reg) << EhnMIIregShift) | (pmd << EhnMIIpmdShift) | |
| 329 | (((u32) val) << EhnMIIdataShift)); |
| 330 | } |
| 331 | |
| 332 | static int mdio_read(void __iomem *ioaddr, int reg) |
| 333 | { |
| 334 | u32 pmd = 1; |
| 335 | |
| 336 | __mdio_cmd(ioaddr, EhnMIIreq | EhnMIIread | |
| 337 | (((u32) reg) << EhnMIIregShift) | (pmd << EhnMIIpmdShift)); |
| 338 | |
| 339 | return (u16) (SIS_R32(GMIIControl) >> EhnMIIdataShift); |
| 340 | } |
| 341 | |
Francois Romieu | 43afb94 | 2005-07-30 13:10:21 +0200 | [diff] [blame] | 342 | static void __mdio_write(struct net_device *dev, int phy_id, int reg, int val) |
| 343 | { |
| 344 | struct sis190_private *tp = netdev_priv(dev); |
| 345 | |
| 346 | mdio_write(tp->mmio_addr, reg, val); |
| 347 | } |
| 348 | |
| 349 | static int __mdio_read(struct net_device *dev, int phy_id, int reg) |
| 350 | { |
| 351 | struct sis190_private *tp = netdev_priv(dev); |
| 352 | |
| 353 | return mdio_read(tp->mmio_addr, reg); |
| 354 | } |
| 355 | |
Francois Romieu | 40292fb | 2005-07-30 13:12:06 +0200 | [diff] [blame] | 356 | static u16 __devinit sis190_read_eeprom(void __iomem *ioaddr, u32 reg) |
Francois Romieu | 890e8d0 | 2005-07-30 13:08:43 +0200 | [diff] [blame] | 357 | { |
Francois Romieu | 40292fb | 2005-07-30 13:12:06 +0200 | [diff] [blame] | 358 | u16 data = 0xffff; |
Francois Romieu | 890e8d0 | 2005-07-30 13:08:43 +0200 | [diff] [blame] | 359 | unsigned int i; |
Francois Romieu | 890e8d0 | 2005-07-30 13:08:43 +0200 | [diff] [blame] | 360 | |
| 361 | if (!(SIS_R32(ROMControl) & 0x0002)) |
| 362 | return 0; |
| 363 | |
Francois Romieu | 40292fb | 2005-07-30 13:12:06 +0200 | [diff] [blame] | 364 | SIS_W32(ROMInterface, EEREQ | EEROP | (reg << 10)); |
Francois Romieu | 890e8d0 | 2005-07-30 13:08:43 +0200 | [diff] [blame] | 365 | |
| 366 | for (i = 0; i < 200; i++) { |
Francois Romieu | 40292fb | 2005-07-30 13:12:06 +0200 | [diff] [blame] | 367 | if (!(SIS_R32(ROMInterface) & EEREQ)) { |
| 368 | data = (SIS_R32(ROMInterface) & 0xffff0000) >> 16; |
Francois Romieu | 890e8d0 | 2005-07-30 13:08:43 +0200 | [diff] [blame] | 369 | break; |
Francois Romieu | 40292fb | 2005-07-30 13:12:06 +0200 | [diff] [blame] | 370 | } |
Francois Romieu | 890e8d0 | 2005-07-30 13:08:43 +0200 | [diff] [blame] | 371 | msleep(1); |
| 372 | } |
| 373 | |
Francois Romieu | 890e8d0 | 2005-07-30 13:08:43 +0200 | [diff] [blame] | 374 | return data; |
| 375 | } |
| 376 | |
| 377 | static void sis190_irq_mask_and_ack(void __iomem *ioaddr) |
| 378 | { |
| 379 | SIS_W32(IntrMask, 0x00); |
| 380 | SIS_W32(IntrStatus, 0xffffffff); |
| 381 | SIS_PCI_COMMIT(); |
| 382 | } |
| 383 | |
| 384 | static void sis190_asic_down(void __iomem *ioaddr) |
| 385 | { |
| 386 | /* Stop the chip's Tx and Rx DMA processes. */ |
| 387 | |
| 388 | SIS_W32(TxControl, 0x1a00); |
| 389 | SIS_W32(RxControl, 0x1a00); |
| 390 | |
| 391 | sis190_irq_mask_and_ack(ioaddr); |
| 392 | } |
| 393 | |
| 394 | static void sis190_mark_as_last_descriptor(struct RxDesc *desc) |
| 395 | { |
| 396 | desc->size |= cpu_to_le32(RingEnd); |
| 397 | } |
| 398 | |
| 399 | static inline void sis190_give_to_asic(struct RxDesc *desc, u32 rx_buf_sz) |
| 400 | { |
| 401 | u32 eor = le32_to_cpu(desc->size) & RingEnd; |
| 402 | |
| 403 | desc->PSize = 0x0; |
Francois Romieu | 8b5641d | 2005-07-30 13:13:03 +0200 | [diff] [blame^] | 404 | desc->size = cpu_to_le32((rx_buf_sz & RX_BUF_MASK) | eor); |
Francois Romieu | 890e8d0 | 2005-07-30 13:08:43 +0200 | [diff] [blame] | 405 | wmb(); |
| 406 | desc->status = cpu_to_le32(OWNbit | INTbit); |
| 407 | } |
| 408 | |
| 409 | static inline void sis190_map_to_asic(struct RxDesc *desc, dma_addr_t mapping, |
| 410 | u32 rx_buf_sz) |
| 411 | { |
| 412 | desc->addr = cpu_to_le32(mapping); |
| 413 | sis190_give_to_asic(desc, rx_buf_sz); |
| 414 | } |
| 415 | |
| 416 | static inline void sis190_make_unusable_by_asic(struct RxDesc *desc) |
| 417 | { |
| 418 | desc->PSize = 0x0; |
| 419 | desc->addr = 0xdeadbeef; |
| 420 | desc->size &= cpu_to_le32(RingEnd); |
| 421 | wmb(); |
| 422 | desc->status = 0x0; |
| 423 | } |
| 424 | |
| 425 | static int sis190_alloc_rx_skb(struct pci_dev *pdev, struct sk_buff **sk_buff, |
| 426 | struct RxDesc *desc, u32 rx_buf_sz) |
| 427 | { |
| 428 | struct sk_buff *skb; |
| 429 | dma_addr_t mapping; |
| 430 | int ret = 0; |
| 431 | |
| 432 | skb = dev_alloc_skb(rx_buf_sz); |
| 433 | if (!skb) |
| 434 | goto err_out; |
| 435 | |
| 436 | *sk_buff = skb; |
| 437 | |
| 438 | mapping = pci_map_single(pdev, skb->data, rx_buf_sz, |
| 439 | PCI_DMA_FROMDEVICE); |
| 440 | |
| 441 | sis190_map_to_asic(desc, mapping, rx_buf_sz); |
| 442 | out: |
| 443 | return ret; |
| 444 | |
| 445 | err_out: |
| 446 | ret = -ENOMEM; |
| 447 | sis190_make_unusable_by_asic(desc); |
| 448 | goto out; |
| 449 | } |
| 450 | |
| 451 | static u32 sis190_rx_fill(struct sis190_private *tp, struct net_device *dev, |
| 452 | u32 start, u32 end) |
| 453 | { |
| 454 | u32 cur; |
| 455 | |
| 456 | for (cur = start; cur < end; cur++) { |
| 457 | int ret, i = cur % NUM_RX_DESC; |
| 458 | |
| 459 | if (tp->Rx_skbuff[i]) |
| 460 | continue; |
| 461 | |
| 462 | ret = sis190_alloc_rx_skb(tp->pci_dev, tp->Rx_skbuff + i, |
| 463 | tp->RxDescRing + i, tp->rx_buf_sz); |
| 464 | if (ret < 0) |
| 465 | break; |
| 466 | } |
| 467 | return cur - start; |
| 468 | } |
| 469 | |
| 470 | static inline int sis190_try_rx_copy(struct sk_buff **sk_buff, int pkt_size, |
| 471 | struct RxDesc *desc, int rx_buf_sz) |
| 472 | { |
| 473 | int ret = -1; |
| 474 | |
| 475 | if (pkt_size < rx_copybreak) { |
| 476 | struct sk_buff *skb; |
| 477 | |
| 478 | skb = dev_alloc_skb(pkt_size + NET_IP_ALIGN); |
| 479 | if (skb) { |
| 480 | skb_reserve(skb, NET_IP_ALIGN); |
| 481 | eth_copy_and_sum(skb, sk_buff[0]->data, pkt_size, 0); |
| 482 | *sk_buff = skb; |
| 483 | sis190_give_to_asic(desc, rx_buf_sz); |
| 484 | ret = 0; |
| 485 | } |
| 486 | } |
| 487 | return ret; |
| 488 | } |
| 489 | |
| 490 | static int sis190_rx_interrupt(struct net_device *dev, |
| 491 | struct sis190_private *tp, void __iomem *ioaddr) |
| 492 | { |
| 493 | struct net_device_stats *stats = &tp->stats; |
| 494 | u32 rx_left, cur_rx = tp->cur_rx; |
| 495 | u32 delta, count; |
| 496 | |
| 497 | rx_left = NUM_RX_DESC + tp->dirty_rx - cur_rx; |
| 498 | rx_left = sis190_rx_quota(rx_left, (u32) dev->quota); |
| 499 | |
| 500 | for (; rx_left > 0; rx_left--, cur_rx++) { |
| 501 | unsigned int entry = cur_rx % NUM_RX_DESC; |
| 502 | struct RxDesc *desc = tp->RxDescRing + entry; |
| 503 | u32 status; |
| 504 | |
| 505 | if (desc->status & OWNbit) |
| 506 | break; |
| 507 | |
| 508 | status = le32_to_cpu(desc->PSize); |
| 509 | |
| 510 | // net_intr(tp, KERN_INFO "%s: Rx PSize = %08x.\n", dev->name, |
| 511 | // status); |
| 512 | |
| 513 | if (status & RxCRC) { |
| 514 | net_intr(tp, KERN_INFO "%s: bad crc. status = %08x.\n", |
| 515 | dev->name, status); |
| 516 | stats->rx_errors++; |
| 517 | stats->rx_crc_errors++; |
| 518 | sis190_give_to_asic(desc, tp->rx_buf_sz); |
| 519 | } else if (!(status & PADbit)) { |
| 520 | net_intr(tp, KERN_INFO "%s: bad pad. status = %08x.\n", |
| 521 | dev->name, status); |
| 522 | stats->rx_errors++; |
| 523 | stats->rx_length_errors++; |
| 524 | sis190_give_to_asic(desc, tp->rx_buf_sz); |
| 525 | } else { |
| 526 | struct sk_buff *skb = tp->Rx_skbuff[entry]; |
| 527 | int pkt_size = (status & RxSizeMask) - 4; |
| 528 | void (*pci_action)(struct pci_dev *, dma_addr_t, |
| 529 | size_t, int) = pci_dma_sync_single_for_device; |
| 530 | |
| 531 | if (unlikely(pkt_size > tp->rx_buf_sz)) { |
| 532 | net_intr(tp, KERN_INFO |
| 533 | "%s: (frag) status = %08x.\n", |
| 534 | dev->name, status); |
| 535 | stats->rx_dropped++; |
| 536 | stats->rx_length_errors++; |
| 537 | sis190_give_to_asic(desc, tp->rx_buf_sz); |
| 538 | continue; |
| 539 | } |
| 540 | |
| 541 | pci_dma_sync_single_for_cpu(tp->pci_dev, |
| 542 | le32_to_cpu(desc->addr), tp->rx_buf_sz, |
| 543 | PCI_DMA_FROMDEVICE); |
| 544 | |
| 545 | if (sis190_try_rx_copy(&skb, pkt_size, desc, |
| 546 | tp->rx_buf_sz)) { |
| 547 | pci_action = pci_unmap_single; |
| 548 | tp->Rx_skbuff[entry] = NULL; |
| 549 | sis190_make_unusable_by_asic(desc); |
| 550 | } |
| 551 | |
| 552 | pci_action(tp->pci_dev, le32_to_cpu(desc->addr), |
| 553 | tp->rx_buf_sz, PCI_DMA_FROMDEVICE); |
| 554 | |
| 555 | skb->dev = dev; |
| 556 | skb_put(skb, pkt_size); |
| 557 | skb->protocol = eth_type_trans(skb, dev); |
| 558 | |
| 559 | sis190_rx_skb(skb); |
| 560 | |
| 561 | dev->last_rx = jiffies; |
| 562 | stats->rx_bytes += pkt_size; |
| 563 | stats->rx_packets++; |
| 564 | } |
| 565 | } |
| 566 | count = cur_rx - tp->cur_rx; |
| 567 | tp->cur_rx = cur_rx; |
| 568 | |
| 569 | delta = sis190_rx_fill(tp, dev, tp->dirty_rx, tp->cur_rx); |
| 570 | if (!delta && count && netif_msg_intr(tp)) |
| 571 | printk(KERN_INFO "%s: no Rx buffer allocated.\n", dev->name); |
| 572 | tp->dirty_rx += delta; |
| 573 | |
| 574 | if (((tp->dirty_rx + NUM_RX_DESC) == tp->cur_rx) && netif_msg_intr(tp)) |
| 575 | printk(KERN_EMERG "%s: Rx buffers exhausted.\n", dev->name); |
| 576 | |
| 577 | return count; |
| 578 | } |
| 579 | |
| 580 | static void sis190_unmap_tx_skb(struct pci_dev *pdev, struct sk_buff *skb, |
| 581 | struct TxDesc *desc) |
| 582 | { |
| 583 | unsigned int len; |
| 584 | |
| 585 | len = skb->len < ETH_ZLEN ? ETH_ZLEN : skb->len; |
| 586 | |
| 587 | pci_unmap_single(pdev, le32_to_cpu(desc->addr), len, PCI_DMA_TODEVICE); |
| 588 | |
| 589 | memset(desc, 0x00, sizeof(*desc)); |
| 590 | } |
| 591 | |
| 592 | static void sis190_tx_interrupt(struct net_device *dev, |
| 593 | struct sis190_private *tp, void __iomem *ioaddr) |
| 594 | { |
| 595 | u32 pending, dirty_tx = tp->dirty_tx; |
| 596 | /* |
| 597 | * It would not be needed if queueing was allowed to be enabled |
| 598 | * again too early (hint: think preempt and unclocked smp systems). |
| 599 | */ |
| 600 | unsigned int queue_stopped; |
| 601 | |
| 602 | smp_rmb(); |
| 603 | pending = tp->cur_tx - dirty_tx; |
| 604 | queue_stopped = (pending == NUM_TX_DESC); |
| 605 | |
| 606 | for (; pending; pending--, dirty_tx++) { |
| 607 | unsigned int entry = dirty_tx % NUM_TX_DESC; |
| 608 | struct TxDesc *txd = tp->TxDescRing + entry; |
| 609 | struct sk_buff *skb; |
| 610 | |
| 611 | if (le32_to_cpu(txd->status) & OWNbit) |
| 612 | break; |
| 613 | |
| 614 | skb = tp->Tx_skbuff[entry]; |
| 615 | |
| 616 | tp->stats.tx_packets++; |
| 617 | tp->stats.tx_bytes += skb->len; |
| 618 | |
| 619 | sis190_unmap_tx_skb(tp->pci_dev, skb, txd); |
| 620 | tp->Tx_skbuff[entry] = NULL; |
| 621 | dev_kfree_skb_irq(skb); |
| 622 | } |
| 623 | |
| 624 | if (tp->dirty_tx != dirty_tx) { |
| 625 | tp->dirty_tx = dirty_tx; |
| 626 | smp_wmb(); |
| 627 | if (queue_stopped) |
| 628 | netif_wake_queue(dev); |
| 629 | } |
| 630 | } |
| 631 | |
| 632 | /* |
| 633 | * The interrupt handler does all of the Rx thread work and cleans up after |
| 634 | * the Tx thread. |
| 635 | */ |
| 636 | static irqreturn_t sis190_interrupt(int irq, void *__dev, struct pt_regs *regs) |
| 637 | { |
| 638 | struct net_device *dev = __dev; |
| 639 | struct sis190_private *tp = netdev_priv(dev); |
| 640 | void __iomem *ioaddr = tp->mmio_addr; |
| 641 | unsigned int handled = 0; |
| 642 | u32 status; |
| 643 | |
| 644 | status = SIS_R32(IntrStatus); |
| 645 | |
| 646 | if ((status == 0xffffffff) || !status) |
| 647 | goto out; |
| 648 | |
| 649 | handled = 1; |
| 650 | |
| 651 | if (unlikely(!netif_running(dev))) { |
| 652 | sis190_asic_down(ioaddr); |
| 653 | goto out; |
| 654 | } |
| 655 | |
| 656 | SIS_W32(IntrStatus, status); |
| 657 | |
| 658 | // net_intr(tp, KERN_INFO "%s: status = %08x.\n", dev->name, status); |
| 659 | |
| 660 | if (status & LinkChange) { |
| 661 | net_intr(tp, KERN_INFO "%s: link change.\n", dev->name); |
| 662 | schedule_work(&tp->phy_task); |
| 663 | } |
| 664 | |
| 665 | if (status & RxQInt) |
| 666 | sis190_rx_interrupt(dev, tp, ioaddr); |
| 667 | |
| 668 | if (status & TxQ0Int) |
| 669 | sis190_tx_interrupt(dev, tp, ioaddr); |
| 670 | out: |
| 671 | return IRQ_RETVAL(handled); |
| 672 | } |
| 673 | |
Francois Romieu | 4405d3b | 2005-07-30 13:09:20 +0200 | [diff] [blame] | 674 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 675 | static void sis190_netpoll(struct net_device *dev) |
| 676 | { |
| 677 | struct sis190_private *tp = netdev_priv(dev); |
| 678 | struct pci_dev *pdev = tp->pci_dev; |
| 679 | |
| 680 | disable_irq(pdev->irq); |
| 681 | sis190_interrupt(pdev->irq, dev, NULL); |
| 682 | enable_irq(pdev->irq); |
| 683 | } |
| 684 | #endif |
| 685 | |
Francois Romieu | 890e8d0 | 2005-07-30 13:08:43 +0200 | [diff] [blame] | 686 | static void sis190_free_rx_skb(struct sis190_private *tp, |
| 687 | struct sk_buff **sk_buff, struct RxDesc *desc) |
| 688 | { |
| 689 | struct pci_dev *pdev = tp->pci_dev; |
| 690 | |
| 691 | pci_unmap_single(pdev, le32_to_cpu(desc->addr), tp->rx_buf_sz, |
| 692 | PCI_DMA_FROMDEVICE); |
| 693 | dev_kfree_skb(*sk_buff); |
| 694 | *sk_buff = NULL; |
| 695 | sis190_make_unusable_by_asic(desc); |
| 696 | } |
| 697 | |
| 698 | static void sis190_rx_clear(struct sis190_private *tp) |
| 699 | { |
| 700 | unsigned int i; |
| 701 | |
| 702 | for (i = 0; i < NUM_RX_DESC; i++) { |
| 703 | if (!tp->Rx_skbuff[i]) |
| 704 | continue; |
| 705 | sis190_free_rx_skb(tp, tp->Rx_skbuff + i, tp->RxDescRing + i); |
| 706 | } |
| 707 | } |
| 708 | |
| 709 | static void sis190_init_ring_indexes(struct sis190_private *tp) |
| 710 | { |
| 711 | tp->dirty_tx = tp->dirty_rx = tp->cur_tx = tp->cur_rx = 0; |
| 712 | } |
| 713 | |
| 714 | static int sis190_init_ring(struct net_device *dev) |
| 715 | { |
| 716 | struct sis190_private *tp = netdev_priv(dev); |
| 717 | |
| 718 | sis190_init_ring_indexes(tp); |
| 719 | |
| 720 | memset(tp->Tx_skbuff, 0x0, NUM_TX_DESC * sizeof(struct sk_buff *)); |
| 721 | memset(tp->Rx_skbuff, 0x0, NUM_RX_DESC * sizeof(struct sk_buff *)); |
| 722 | |
| 723 | if (sis190_rx_fill(tp, dev, 0, NUM_RX_DESC) != NUM_RX_DESC) |
| 724 | goto err_rx_clear; |
| 725 | |
| 726 | sis190_mark_as_last_descriptor(tp->RxDescRing + NUM_RX_DESC - 1); |
| 727 | |
| 728 | return 0; |
| 729 | |
| 730 | err_rx_clear: |
| 731 | sis190_rx_clear(tp); |
| 732 | return -ENOMEM; |
| 733 | } |
| 734 | |
| 735 | static void sis190_set_rx_mode(struct net_device *dev) |
| 736 | { |
| 737 | struct sis190_private *tp = netdev_priv(dev); |
| 738 | void __iomem *ioaddr = tp->mmio_addr; |
| 739 | unsigned long flags; |
| 740 | u32 mc_filter[2]; /* Multicast hash filter */ |
| 741 | u16 rx_mode; |
| 742 | |
| 743 | if (dev->flags & IFF_PROMISC) { |
| 744 | /* Unconditionally log net taps. */ |
| 745 | net_drv(tp, KERN_NOTICE "%s: Promiscuous mode enabled.\n", |
| 746 | dev->name); |
| 747 | rx_mode = |
| 748 | AcceptBroadcast | AcceptMulticast | AcceptMyPhys | |
| 749 | AcceptAllPhys; |
| 750 | mc_filter[1] = mc_filter[0] = 0xffffffff; |
| 751 | } else if ((dev->mc_count > multicast_filter_limit) || |
| 752 | (dev->flags & IFF_ALLMULTI)) { |
| 753 | /* Too many to filter perfectly -- accept all multicasts. */ |
| 754 | rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys; |
| 755 | mc_filter[1] = mc_filter[0] = 0xffffffff; |
| 756 | } else { |
| 757 | struct dev_mc_list *mclist; |
| 758 | unsigned int i; |
| 759 | |
| 760 | rx_mode = AcceptBroadcast | AcceptMyPhys; |
| 761 | mc_filter[1] = mc_filter[0] = 0; |
| 762 | for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count; |
| 763 | i++, mclist = mclist->next) { |
| 764 | int bit_nr = |
| 765 | ether_crc(ETH_ALEN, mclist->dmi_addr) >> 26; |
| 766 | mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31); |
| 767 | rx_mode |= AcceptMulticast; |
| 768 | } |
| 769 | } |
| 770 | |
| 771 | spin_lock_irqsave(&tp->lock, flags); |
| 772 | |
| 773 | SIS_W16(RxMacControl, rx_mode | 0x2); |
| 774 | SIS_W32(RxHashTable, mc_filter[0]); |
| 775 | SIS_W32(RxHashTable + 4, mc_filter[1]); |
| 776 | |
| 777 | spin_unlock_irqrestore(&tp->lock, flags); |
| 778 | } |
| 779 | |
| 780 | static void sis190_soft_reset(void __iomem *ioaddr) |
| 781 | { |
| 782 | SIS_W32(IntrControl, 0x8000); |
| 783 | SIS_PCI_COMMIT(); |
| 784 | msleep(1); |
| 785 | SIS_W32(IntrControl, 0x0); |
| 786 | sis190_asic_down(ioaddr); |
| 787 | msleep(1); |
| 788 | } |
| 789 | |
| 790 | static void sis190_hw_start(struct net_device *dev) |
| 791 | { |
| 792 | struct sis190_private *tp = netdev_priv(dev); |
| 793 | void __iomem *ioaddr = tp->mmio_addr; |
| 794 | |
| 795 | sis190_soft_reset(ioaddr); |
| 796 | |
| 797 | SIS_W32(TxDescStartAddr, tp->tx_dma); |
| 798 | SIS_W32(RxDescStartAddr, tp->rx_dma); |
| 799 | |
| 800 | SIS_W32(IntrStatus, 0xffffffff); |
| 801 | SIS_W32(IntrMask, 0x0); |
| 802 | /* |
| 803 | * Default is 100Mbps. |
| 804 | * A bit strange: 100Mbps is 0x1801 elsewhere -- FR 2005/06/09 |
| 805 | */ |
| 806 | SIS_W16(StationControl, 0x1901); |
| 807 | SIS_W32(GMIIControl, 0x0); |
| 808 | SIS_W32(TxMacControl, 0x60); |
| 809 | SIS_W16(RxMacControl, 0x02); |
| 810 | SIS_W32(RxHashTable, 0x0); |
| 811 | SIS_W32(0x6c, 0x0); |
Francois Romieu | 188f23b | 2005-07-30 13:11:43 +0200 | [diff] [blame] | 812 | SIS_W32(RxWolCtrl, 0x0); |
| 813 | SIS_W32(RxWolData, 0x0); |
Francois Romieu | 890e8d0 | 2005-07-30 13:08:43 +0200 | [diff] [blame] | 814 | |
| 815 | SIS_PCI_COMMIT(); |
| 816 | |
| 817 | sis190_set_rx_mode(dev); |
| 818 | |
| 819 | /* Enable all known interrupts by setting the interrupt mask. */ |
| 820 | SIS_W32(IntrMask, sis190_intr_mask); |
| 821 | |
| 822 | SIS_W32(TxControl, 0x1a00 | CmdTxEnb); |
| 823 | SIS_W32(RxControl, 0x1a1d); |
| 824 | |
| 825 | netif_start_queue(dev); |
| 826 | } |
| 827 | |
| 828 | static void sis190_phy_task(void * data) |
| 829 | { |
| 830 | struct net_device *dev = data; |
| 831 | struct sis190_private *tp = netdev_priv(dev); |
| 832 | void __iomem *ioaddr = tp->mmio_addr; |
| 833 | u16 val; |
| 834 | |
Francois Romieu | 43afb94 | 2005-07-30 13:10:21 +0200 | [diff] [blame] | 835 | rtnl_lock(); |
| 836 | |
Francois Romieu | 890e8d0 | 2005-07-30 13:08:43 +0200 | [diff] [blame] | 837 | val = mdio_read(ioaddr, MII_BMCR); |
| 838 | if (val & BMCR_RESET) { |
| 839 | // FIXME: needlessly high ? -- FR 02/07/2005 |
| 840 | mod_timer(&tp->timer, jiffies + HZ/10); |
| 841 | } else if (!(mdio_read(ioaddr, MII_BMSR) & BMSR_ANEGCOMPLETE)) { |
| 842 | net_link(tp, KERN_WARNING "%s: PHY reset until link up.\n", |
| 843 | dev->name); |
| 844 | mdio_write(ioaddr, MII_BMCR, val | BMCR_RESET); |
| 845 | mod_timer(&tp->timer, jiffies + SIS190_PHY_TIMEOUT); |
| 846 | } else { |
| 847 | /* Rejoice ! */ |
| 848 | struct { |
| 849 | int val; |
| 850 | const char *msg; |
| 851 | u16 ctl; |
| 852 | } reg31[] = { |
| 853 | { LPA_1000XFULL | LPA_SLCT, |
| 854 | "1000 Mbps Full Duplex", |
| 855 | 0x01 | _1000bpsF }, |
| 856 | { LPA_1000XHALF | LPA_SLCT, |
| 857 | "1000 Mbps Half Duplex", |
| 858 | 0x01 | _1000bpsH }, |
| 859 | { LPA_100FULL, |
| 860 | "100 Mbps Full Duplex", |
| 861 | 0x01 | _100bpsF }, |
| 862 | { LPA_100HALF, |
| 863 | "100 Mbps Half Duplex", |
| 864 | 0x01 | _100bpsH }, |
| 865 | { LPA_10FULL, |
| 866 | "10 Mbps Full Duplex", |
| 867 | 0x01 | _10bpsF }, |
| 868 | { LPA_10HALF, |
| 869 | "10 Mbps Half Duplex", |
| 870 | 0x01 | _10bpsH }, |
| 871 | { 0, "unknown", 0x0000 } |
| 872 | }, *p; |
| 873 | |
| 874 | val = mdio_read(ioaddr, 0x1f); |
| 875 | net_link(tp, KERN_INFO "%s: mii ext = %04x.\n", dev->name, val); |
| 876 | |
| 877 | val = mdio_read(ioaddr, MII_LPA); |
| 878 | net_link(tp, KERN_INFO "%s: mii lpa = %04x.\n", dev->name, val); |
| 879 | |
| 880 | for (p = reg31; p->ctl; p++) { |
| 881 | if ((val & p->val) == p->val) |
| 882 | break; |
| 883 | } |
| 884 | if (p->ctl) |
| 885 | SIS_W16(StationControl, p->ctl); |
| 886 | net_link(tp, KERN_INFO "%s: link on %s mode.\n", dev->name, |
| 887 | p->msg); |
| 888 | netif_carrier_on(dev); |
| 889 | } |
Francois Romieu | 43afb94 | 2005-07-30 13:10:21 +0200 | [diff] [blame] | 890 | |
| 891 | rtnl_unlock(); |
Francois Romieu | 890e8d0 | 2005-07-30 13:08:43 +0200 | [diff] [blame] | 892 | } |
| 893 | |
| 894 | static void sis190_phy_timer(unsigned long __opaque) |
| 895 | { |
| 896 | struct net_device *dev = (struct net_device *)__opaque; |
| 897 | struct sis190_private *tp = netdev_priv(dev); |
| 898 | |
| 899 | if (likely(netif_running(dev))) |
| 900 | schedule_work(&tp->phy_task); |
| 901 | } |
| 902 | |
| 903 | static inline void sis190_delete_timer(struct net_device *dev) |
| 904 | { |
| 905 | struct sis190_private *tp = netdev_priv(dev); |
| 906 | |
| 907 | del_timer_sync(&tp->timer); |
| 908 | } |
| 909 | |
| 910 | static inline void sis190_request_timer(struct net_device *dev) |
| 911 | { |
| 912 | struct sis190_private *tp = netdev_priv(dev); |
| 913 | struct timer_list *timer = &tp->timer; |
| 914 | |
| 915 | init_timer(timer); |
| 916 | timer->expires = jiffies + SIS190_PHY_TIMEOUT; |
| 917 | timer->data = (unsigned long)dev; |
| 918 | timer->function = sis190_phy_timer; |
| 919 | add_timer(timer); |
| 920 | } |
| 921 | |
| 922 | static void sis190_set_rxbufsize(struct sis190_private *tp, |
| 923 | struct net_device *dev) |
| 924 | { |
| 925 | unsigned int mtu = dev->mtu; |
| 926 | |
| 927 | tp->rx_buf_sz = (mtu > RX_BUF_SIZE) ? mtu + ETH_HLEN + 8 : RX_BUF_SIZE; |
Francois Romieu | 8b5641d | 2005-07-30 13:13:03 +0200 | [diff] [blame^] | 928 | /* RxDesc->size has a licence to kill the lower bits */ |
| 929 | if (tp->rx_buf_sz & 0x07) { |
| 930 | tp->rx_buf_sz += 8; |
| 931 | tp->rx_buf_sz &= RX_BUF_MASK; |
| 932 | } |
Francois Romieu | 890e8d0 | 2005-07-30 13:08:43 +0200 | [diff] [blame] | 933 | } |
| 934 | |
| 935 | static int sis190_open(struct net_device *dev) |
| 936 | { |
| 937 | struct sis190_private *tp = netdev_priv(dev); |
| 938 | struct pci_dev *pdev = tp->pci_dev; |
| 939 | int rc = -ENOMEM; |
| 940 | |
| 941 | sis190_set_rxbufsize(tp, dev); |
| 942 | |
| 943 | /* |
| 944 | * Rx and Tx descriptors need 256 bytes alignment. |
| 945 | * pci_alloc_consistent() guarantees a stronger alignment. |
| 946 | */ |
| 947 | tp->TxDescRing = pci_alloc_consistent(pdev, TX_RING_BYTES, &tp->tx_dma); |
| 948 | if (!tp->TxDescRing) |
| 949 | goto out; |
| 950 | |
| 951 | tp->RxDescRing = pci_alloc_consistent(pdev, RX_RING_BYTES, &tp->rx_dma); |
| 952 | if (!tp->RxDescRing) |
| 953 | goto err_free_tx_0; |
| 954 | |
| 955 | rc = sis190_init_ring(dev); |
| 956 | if (rc < 0) |
| 957 | goto err_free_rx_1; |
| 958 | |
| 959 | INIT_WORK(&tp->phy_task, sis190_phy_task, dev); |
| 960 | |
| 961 | sis190_request_timer(dev); |
| 962 | |
| 963 | rc = request_irq(dev->irq, sis190_interrupt, SA_SHIRQ, dev->name, dev); |
| 964 | if (rc < 0) |
| 965 | goto err_release_timer_2; |
| 966 | |
| 967 | sis190_hw_start(dev); |
| 968 | out: |
| 969 | return rc; |
| 970 | |
| 971 | err_release_timer_2: |
| 972 | sis190_delete_timer(dev); |
| 973 | sis190_rx_clear(tp); |
| 974 | err_free_rx_1: |
| 975 | pci_free_consistent(tp->pci_dev, RX_RING_BYTES, tp->RxDescRing, |
| 976 | tp->rx_dma); |
| 977 | err_free_tx_0: |
| 978 | pci_free_consistent(tp->pci_dev, TX_RING_BYTES, tp->TxDescRing, |
| 979 | tp->tx_dma); |
| 980 | goto out; |
| 981 | } |
| 982 | |
| 983 | static void sis190_tx_clear(struct sis190_private *tp) |
| 984 | { |
| 985 | unsigned int i; |
| 986 | |
| 987 | for (i = 0; i < NUM_TX_DESC; i++) { |
| 988 | struct sk_buff *skb = tp->Tx_skbuff[i]; |
| 989 | |
| 990 | if (!skb) |
| 991 | continue; |
| 992 | |
| 993 | sis190_unmap_tx_skb(tp->pci_dev, skb, tp->TxDescRing + i); |
| 994 | tp->Tx_skbuff[i] = NULL; |
| 995 | dev_kfree_skb(skb); |
| 996 | |
| 997 | tp->stats.tx_dropped++; |
| 998 | } |
| 999 | tp->cur_tx = tp->dirty_tx = 0; |
| 1000 | } |
| 1001 | |
| 1002 | static void sis190_down(struct net_device *dev) |
| 1003 | { |
| 1004 | struct sis190_private *tp = netdev_priv(dev); |
| 1005 | void __iomem *ioaddr = tp->mmio_addr; |
| 1006 | unsigned int poll_locked = 0; |
| 1007 | |
| 1008 | sis190_delete_timer(dev); |
| 1009 | |
| 1010 | netif_stop_queue(dev); |
| 1011 | |
| 1012 | flush_scheduled_work(); |
| 1013 | |
| 1014 | do { |
| 1015 | spin_lock_irq(&tp->lock); |
| 1016 | |
| 1017 | sis190_asic_down(ioaddr); |
| 1018 | |
| 1019 | spin_unlock_irq(&tp->lock); |
| 1020 | |
| 1021 | synchronize_irq(dev->irq); |
| 1022 | |
| 1023 | if (!poll_locked) { |
| 1024 | netif_poll_disable(dev); |
| 1025 | poll_locked++; |
| 1026 | } |
| 1027 | |
| 1028 | synchronize_sched(); |
| 1029 | |
| 1030 | } while (SIS_R32(IntrMask)); |
| 1031 | |
| 1032 | sis190_tx_clear(tp); |
| 1033 | sis190_rx_clear(tp); |
| 1034 | } |
| 1035 | |
| 1036 | static int sis190_close(struct net_device *dev) |
| 1037 | { |
| 1038 | struct sis190_private *tp = netdev_priv(dev); |
| 1039 | struct pci_dev *pdev = tp->pci_dev; |
| 1040 | |
| 1041 | sis190_down(dev); |
| 1042 | |
| 1043 | free_irq(dev->irq, dev); |
| 1044 | |
| 1045 | netif_poll_enable(dev); |
| 1046 | |
| 1047 | pci_free_consistent(pdev, TX_RING_BYTES, tp->TxDescRing, tp->tx_dma); |
| 1048 | pci_free_consistent(pdev, RX_RING_BYTES, tp->RxDescRing, tp->rx_dma); |
| 1049 | |
| 1050 | tp->TxDescRing = NULL; |
| 1051 | tp->RxDescRing = NULL; |
| 1052 | |
| 1053 | return 0; |
| 1054 | } |
| 1055 | |
| 1056 | static int sis190_start_xmit(struct sk_buff *skb, struct net_device *dev) |
| 1057 | { |
| 1058 | struct sis190_private *tp = netdev_priv(dev); |
| 1059 | void __iomem *ioaddr = tp->mmio_addr; |
| 1060 | u32 len, entry, dirty_tx; |
| 1061 | struct TxDesc *desc; |
| 1062 | dma_addr_t mapping; |
| 1063 | |
| 1064 | if (unlikely(skb->len < ETH_ZLEN)) { |
| 1065 | skb = skb_padto(skb, ETH_ZLEN); |
| 1066 | if (!skb) { |
| 1067 | tp->stats.tx_dropped++; |
| 1068 | goto out; |
| 1069 | } |
| 1070 | len = ETH_ZLEN; |
| 1071 | } else { |
| 1072 | len = skb->len; |
| 1073 | } |
| 1074 | |
| 1075 | entry = tp->cur_tx % NUM_TX_DESC; |
| 1076 | desc = tp->TxDescRing + entry; |
| 1077 | |
| 1078 | if (unlikely(le32_to_cpu(desc->status) & OWNbit)) { |
| 1079 | netif_stop_queue(dev); |
| 1080 | net_tx_err(tp, KERN_ERR PFX |
| 1081 | "%s: BUG! Tx Ring full when queue awake!\n", |
| 1082 | dev->name); |
| 1083 | return NETDEV_TX_BUSY; |
| 1084 | } |
| 1085 | |
| 1086 | mapping = pci_map_single(tp->pci_dev, skb->data, len, PCI_DMA_TODEVICE); |
| 1087 | |
| 1088 | tp->Tx_skbuff[entry] = skb; |
| 1089 | |
| 1090 | desc->PSize = cpu_to_le32(len); |
| 1091 | desc->addr = cpu_to_le32(mapping); |
| 1092 | |
| 1093 | desc->size = cpu_to_le32(len); |
| 1094 | if (entry == (NUM_TX_DESC - 1)) |
| 1095 | desc->size |= cpu_to_le32(RingEnd); |
| 1096 | |
| 1097 | wmb(); |
| 1098 | |
| 1099 | desc->status = cpu_to_le32(OWNbit | INTbit | DEFbit | CRCbit | PADbit); |
| 1100 | |
| 1101 | tp->cur_tx++; |
| 1102 | |
| 1103 | smp_wmb(); |
| 1104 | |
| 1105 | SIS_W32(TxControl, 0x1a00 | CmdReset | CmdTxEnb); |
| 1106 | |
| 1107 | dev->trans_start = jiffies; |
| 1108 | |
| 1109 | dirty_tx = tp->dirty_tx; |
| 1110 | if ((tp->cur_tx - NUM_TX_DESC) == dirty_tx) { |
| 1111 | netif_stop_queue(dev); |
| 1112 | smp_rmb(); |
| 1113 | if (dirty_tx != tp->dirty_tx) |
| 1114 | netif_wake_queue(dev); |
| 1115 | } |
| 1116 | out: |
| 1117 | return NETDEV_TX_OK; |
| 1118 | } |
| 1119 | |
| 1120 | static struct net_device_stats *sis190_get_stats(struct net_device *dev) |
| 1121 | { |
| 1122 | struct sis190_private *tp = netdev_priv(dev); |
| 1123 | |
| 1124 | return &tp->stats; |
| 1125 | } |
| 1126 | |
| 1127 | static void sis190_release_board(struct pci_dev *pdev) |
| 1128 | { |
| 1129 | struct net_device *dev = pci_get_drvdata(pdev); |
| 1130 | struct sis190_private *tp = netdev_priv(dev); |
| 1131 | |
| 1132 | iounmap(tp->mmio_addr); |
| 1133 | pci_release_regions(pdev); |
| 1134 | pci_disable_device(pdev); |
| 1135 | free_netdev(dev); |
| 1136 | } |
| 1137 | |
| 1138 | static struct net_device * __devinit sis190_init_board(struct pci_dev *pdev) |
| 1139 | { |
| 1140 | struct sis190_private *tp; |
| 1141 | struct net_device *dev; |
| 1142 | void __iomem *ioaddr; |
| 1143 | int rc; |
| 1144 | |
| 1145 | dev = alloc_etherdev(sizeof(*tp)); |
| 1146 | if (!dev) { |
| 1147 | net_drv(&debug, KERN_ERR PFX "unable to alloc new ethernet\n"); |
| 1148 | rc = -ENOMEM; |
| 1149 | goto err_out_0; |
| 1150 | } |
| 1151 | |
| 1152 | SET_MODULE_OWNER(dev); |
| 1153 | SET_NETDEV_DEV(dev, &pdev->dev); |
| 1154 | |
| 1155 | tp = netdev_priv(dev); |
| 1156 | tp->msg_enable = netif_msg_init(debug.msg_enable, SIS190_MSG_DEFAULT); |
| 1157 | |
| 1158 | rc = pci_enable_device(pdev); |
| 1159 | if (rc < 0) { |
| 1160 | net_probe(tp, KERN_ERR "%s: enable failure\n", pci_name(pdev)); |
| 1161 | goto err_free_dev_1; |
| 1162 | } |
| 1163 | |
| 1164 | rc = -ENODEV; |
| 1165 | |
| 1166 | if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { |
| 1167 | net_probe(tp, KERN_ERR "%s: region #0 is no MMIO resource.\n", |
| 1168 | pci_name(pdev)); |
| 1169 | goto err_pci_disable_2; |
| 1170 | } |
| 1171 | if (pci_resource_len(pdev, 0) < SIS190_REGS_SIZE) { |
| 1172 | net_probe(tp, KERN_ERR "%s: invalid PCI region size(s).\n", |
| 1173 | pci_name(pdev)); |
| 1174 | goto err_pci_disable_2; |
| 1175 | } |
| 1176 | |
| 1177 | rc = pci_request_regions(pdev, DRV_NAME); |
| 1178 | if (rc < 0) { |
| 1179 | net_probe(tp, KERN_ERR PFX "%s: could not request regions.\n", |
| 1180 | pci_name(pdev)); |
| 1181 | goto err_pci_disable_2; |
| 1182 | } |
| 1183 | |
| 1184 | rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK); |
| 1185 | if (rc < 0) { |
| 1186 | net_probe(tp, KERN_ERR "%s: DMA configuration failed.\n", |
| 1187 | pci_name(pdev)); |
| 1188 | goto err_free_res_3; |
| 1189 | } |
| 1190 | |
| 1191 | pci_set_master(pdev); |
| 1192 | |
| 1193 | ioaddr = ioremap(pci_resource_start(pdev, 0), SIS190_REGS_SIZE); |
| 1194 | if (!ioaddr) { |
| 1195 | net_probe(tp, KERN_ERR "%s: cannot remap MMIO, aborting\n", |
| 1196 | pci_name(pdev)); |
| 1197 | rc = -EIO; |
| 1198 | goto err_free_res_3; |
| 1199 | } |
| 1200 | |
| 1201 | tp->pci_dev = pdev; |
| 1202 | tp->mmio_addr = ioaddr; |
| 1203 | |
Francois Romieu | 43afb94 | 2005-07-30 13:10:21 +0200 | [diff] [blame] | 1204 | tp->mii_if.dev = dev; |
| 1205 | tp->mii_if.mdio_read = __mdio_read; |
| 1206 | tp->mii_if.mdio_write = __mdio_write; |
| 1207 | // tp->mii_if.phy_id = XXX; |
| 1208 | tp->mii_if.phy_id_mask = 0x1f; |
| 1209 | tp->mii_if.reg_num_mask = 0x1f; |
| 1210 | |
Francois Romieu | 890e8d0 | 2005-07-30 13:08:43 +0200 | [diff] [blame] | 1211 | sis190_irq_mask_and_ack(ioaddr); |
| 1212 | |
| 1213 | sis190_soft_reset(ioaddr); |
| 1214 | out: |
| 1215 | return dev; |
| 1216 | |
| 1217 | err_free_res_3: |
| 1218 | pci_release_regions(pdev); |
| 1219 | err_pci_disable_2: |
| 1220 | pci_disable_device(pdev); |
| 1221 | err_free_dev_1: |
| 1222 | free_netdev(dev); |
| 1223 | err_out_0: |
| 1224 | dev = ERR_PTR(rc); |
| 1225 | goto out; |
| 1226 | } |
| 1227 | |
| 1228 | static void sis190_tx_timeout(struct net_device *dev) |
| 1229 | { |
| 1230 | struct sis190_private *tp = netdev_priv(dev); |
| 1231 | void __iomem *ioaddr = tp->mmio_addr; |
| 1232 | u8 tmp8; |
| 1233 | |
| 1234 | /* Disable Tx, if not already */ |
| 1235 | tmp8 = SIS_R8(TxControl); |
| 1236 | if (tmp8 & CmdTxEnb) |
| 1237 | SIS_W8(TxControl, tmp8 & ~CmdTxEnb); |
| 1238 | |
Francois Romieu | 188f23b | 2005-07-30 13:11:43 +0200 | [diff] [blame] | 1239 | |
| 1240 | net_tx_err(tp, KERN_INFO "%s: Transmit timeout, status %08x %08x.\n", |
| 1241 | dev->name, SIS_R32(TxControl), SIS_R32(TxSts)); |
| 1242 | |
Francois Romieu | 890e8d0 | 2005-07-30 13:08:43 +0200 | [diff] [blame] | 1243 | /* Disable interrupts by clearing the interrupt mask. */ |
| 1244 | SIS_W32(IntrMask, 0x0000); |
| 1245 | |
| 1246 | /* Stop a shared interrupt from scavenging while we are. */ |
| 1247 | spin_lock_irq(&tp->lock); |
| 1248 | sis190_tx_clear(tp); |
| 1249 | spin_unlock_irq(&tp->lock); |
| 1250 | |
| 1251 | /* ...and finally, reset everything. */ |
| 1252 | sis190_hw_start(dev); |
| 1253 | |
| 1254 | netif_wake_queue(dev); |
| 1255 | } |
| 1256 | |
Francois Romieu | 830fb7d | 2005-07-30 13:12:37 +0200 | [diff] [blame] | 1257 | static int __devinit sis190_get_mac_addr_from_eeprom(struct pci_dev *pdev, |
| 1258 | struct net_device *dev) |
| 1259 | { |
| 1260 | struct sis190_private *tp = netdev_priv(dev); |
| 1261 | void __iomem *ioaddr = tp->mmio_addr; |
| 1262 | u16 sig; |
| 1263 | int i; |
| 1264 | |
| 1265 | net_probe(tp, KERN_INFO "%s: Read MAC address from EEPROM\n", |
| 1266 | pci_name(pdev)); |
| 1267 | |
| 1268 | /* Check to see if there is a sane EEPROM */ |
| 1269 | sig = (u16) sis190_read_eeprom(ioaddr, EEPROMSignature); |
| 1270 | |
| 1271 | if ((sig == 0xffff) || (sig == 0x0000)) { |
| 1272 | net_probe(tp, KERN_INFO "%s: Error EEPROM read %x.\n", |
| 1273 | pci_name(pdev), sig); |
| 1274 | return -EIO; |
| 1275 | } |
| 1276 | |
| 1277 | /* Get MAC address from EEPROM */ |
| 1278 | for (i = 0; i < MAC_ADDR_LEN / 2; i++) { |
| 1279 | u16 w = sis190_read_eeprom(ioaddr, EEPROMMACAddr + i); |
| 1280 | |
| 1281 | ((u16 *)dev->dev_addr)[0] = le16_to_cpu(w); |
| 1282 | } |
| 1283 | |
| 1284 | return 0; |
| 1285 | } |
| 1286 | |
| 1287 | /** |
| 1288 | * sis190_get_mac_addr_from_apc - Get MAC address for SiS965 model |
| 1289 | * @pdev: PCI device |
| 1290 | * @dev: network device to get address for |
| 1291 | * |
| 1292 | * SiS965 model, use APC CMOS RAM to store MAC address. |
| 1293 | * APC CMOS RAM is accessed through ISA bridge. |
| 1294 | * MAC address is read into @net_dev->dev_addr. |
| 1295 | */ |
| 1296 | static int __devinit sis190_get_mac_addr_from_apc(struct pci_dev *pdev, |
| 1297 | struct net_device *dev) |
| 1298 | { |
| 1299 | struct sis190_private *tp = netdev_priv(dev); |
| 1300 | struct pci_dev *isa_bridge; |
| 1301 | u8 reg, tmp8; |
| 1302 | int i; |
| 1303 | |
| 1304 | net_probe(tp, KERN_INFO "%s: Read MAC address from APC.\n", |
| 1305 | pci_name(pdev)); |
| 1306 | |
| 1307 | isa_bridge = pci_get_device(PCI_VENDOR_ID_SI, 0x0965, NULL); |
| 1308 | if (!isa_bridge) { |
| 1309 | net_probe(tp, KERN_INFO "%s: Can not find ISA bridge.\n", |
| 1310 | pci_name(pdev)); |
| 1311 | return -EIO; |
| 1312 | } |
| 1313 | |
| 1314 | /* Enable port 78h & 79h to access APC Registers. */ |
| 1315 | pci_read_config_byte(isa_bridge, 0x48, &tmp8); |
| 1316 | reg = (tmp8 & ~0x02); |
| 1317 | pci_write_config_byte(isa_bridge, 0x48, reg); |
| 1318 | udelay(50); |
| 1319 | pci_read_config_byte(isa_bridge, 0x48, ®); |
| 1320 | |
| 1321 | for (i = 0; i < MAC_ADDR_LEN; i++) { |
| 1322 | outb(0x9 + i, 0x78); |
| 1323 | dev->dev_addr[i] = inb(0x79); |
| 1324 | } |
| 1325 | |
| 1326 | outb(0x12, 0x78); |
| 1327 | reg = inb(0x79); |
| 1328 | |
| 1329 | /* Restore the value to ISA Bridge */ |
| 1330 | pci_write_config_byte(isa_bridge, 0x48, tmp8); |
| 1331 | pci_dev_put(isa_bridge); |
| 1332 | |
| 1333 | return 0; |
| 1334 | } |
| 1335 | |
| 1336 | /** |
| 1337 | * sis190_init_rxfilter - Initialize the Rx filter |
| 1338 | * @dev: network device to initialize |
| 1339 | * |
| 1340 | * Set receive filter address to our MAC address |
| 1341 | * and enable packet filtering. |
| 1342 | */ |
| 1343 | static inline void sis190_init_rxfilter(struct net_device *dev) |
| 1344 | { |
| 1345 | struct sis190_private *tp = netdev_priv(dev); |
| 1346 | void __iomem *ioaddr = tp->mmio_addr; |
| 1347 | u16 ctl; |
| 1348 | int i; |
| 1349 | |
| 1350 | ctl = SIS_R16(RxMacControl); |
| 1351 | /* |
| 1352 | * Disable packet filtering before setting filter. |
| 1353 | * Note: SiS's driver writes 32 bits but RxMacControl is 16 bits |
| 1354 | * only and followed by RxMacAddr (6 bytes). Strange. -- FR |
| 1355 | */ |
| 1356 | SIS_W16(RxMacControl, ctl & ~0x0f00); |
| 1357 | |
| 1358 | for (i = 0; i < MAC_ADDR_LEN; i++) |
| 1359 | SIS_W8(RxMacAddr + i, dev->dev_addr[i]); |
| 1360 | |
| 1361 | SIS_W16(RxMacControl, ctl); |
| 1362 | SIS_PCI_COMMIT(); |
| 1363 | } |
| 1364 | |
| 1365 | static int sis190_get_mac_addr(struct pci_dev *pdev, struct net_device *dev) |
| 1366 | { |
| 1367 | u8 from; |
| 1368 | |
| 1369 | pci_read_config_byte(pdev, 0x73, &from); |
| 1370 | |
| 1371 | return (from & 0x00000001) ? |
| 1372 | sis190_get_mac_addr_from_apc(pdev, dev) : |
| 1373 | sis190_get_mac_addr_from_eeprom(pdev, dev); |
| 1374 | } |
| 1375 | |
Francois Romieu | 890e8d0 | 2005-07-30 13:08:43 +0200 | [diff] [blame] | 1376 | static void sis190_set_speed_auto(struct net_device *dev) |
| 1377 | { |
| 1378 | struct sis190_private *tp = netdev_priv(dev); |
| 1379 | void __iomem *ioaddr = tp->mmio_addr; |
| 1380 | int val; |
| 1381 | |
| 1382 | net_link(tp, KERN_INFO "%s: Enabling Auto-negotiation.\n", dev->name); |
| 1383 | |
| 1384 | val = mdio_read(ioaddr, MII_ADVERTISE); |
| 1385 | |
| 1386 | // Enable 10/100 Full/Half Mode, leave MII_ADVERTISE bit4:0 |
| 1387 | // unchanged. |
| 1388 | mdio_write(ioaddr, MII_ADVERTISE, (val & ADVERTISE_SLCT) | |
| 1389 | ADVERTISE_100FULL | ADVERTISE_10FULL | |
| 1390 | ADVERTISE_100HALF | ADVERTISE_10HALF); |
| 1391 | |
| 1392 | // Enable 1000 Full Mode. |
| 1393 | mdio_write(ioaddr, MII_CTRL1000, ADVERTISE_1000FULL); |
| 1394 | |
| 1395 | // Enable auto-negotiation and restart auto-negotiation. |
| 1396 | mdio_write(ioaddr, MII_BMCR, |
| 1397 | BMCR_ANENABLE | BMCR_ANRESTART | BMCR_RESET); |
| 1398 | } |
| 1399 | |
Francois Romieu | 43afb94 | 2005-07-30 13:10:21 +0200 | [diff] [blame] | 1400 | static int sis190_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
| 1401 | { |
| 1402 | struct sis190_private *tp = netdev_priv(dev); |
| 1403 | |
| 1404 | return mii_ethtool_gset(&tp->mii_if, cmd); |
| 1405 | } |
| 1406 | |
| 1407 | static int sis190_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
| 1408 | { |
| 1409 | struct sis190_private *tp = netdev_priv(dev); |
| 1410 | |
| 1411 | return mii_ethtool_sset(&tp->mii_if, cmd); |
| 1412 | } |
| 1413 | |
Francois Romieu | 890e8d0 | 2005-07-30 13:08:43 +0200 | [diff] [blame] | 1414 | static void sis190_get_drvinfo(struct net_device *dev, |
| 1415 | struct ethtool_drvinfo *info) |
| 1416 | { |
| 1417 | struct sis190_private *tp = netdev_priv(dev); |
| 1418 | |
| 1419 | strcpy(info->driver, DRV_NAME); |
| 1420 | strcpy(info->version, DRV_VERSION); |
| 1421 | strcpy(info->bus_info, pci_name(tp->pci_dev)); |
| 1422 | } |
| 1423 | |
| 1424 | static int sis190_get_regs_len(struct net_device *dev) |
| 1425 | { |
| 1426 | return SIS190_REGS_SIZE; |
| 1427 | } |
| 1428 | |
| 1429 | static void sis190_get_regs(struct net_device *dev, struct ethtool_regs *regs, |
| 1430 | void *p) |
| 1431 | { |
| 1432 | struct sis190_private *tp = netdev_priv(dev); |
| 1433 | unsigned long flags; |
| 1434 | |
| 1435 | if (regs->len > SIS190_REGS_SIZE) |
| 1436 | regs->len = SIS190_REGS_SIZE; |
| 1437 | |
| 1438 | spin_lock_irqsave(&tp->lock, flags); |
| 1439 | memcpy_fromio(p, tp->mmio_addr, regs->len); |
| 1440 | spin_unlock_irqrestore(&tp->lock, flags); |
| 1441 | } |
| 1442 | |
Francois Romieu | 43afb94 | 2005-07-30 13:10:21 +0200 | [diff] [blame] | 1443 | static int sis190_nway_reset(struct net_device *dev) |
| 1444 | { |
| 1445 | struct sis190_private *tp = netdev_priv(dev); |
| 1446 | |
| 1447 | return mii_nway_restart(&tp->mii_if); |
| 1448 | } |
| 1449 | |
Francois Romieu | 890e8d0 | 2005-07-30 13:08:43 +0200 | [diff] [blame] | 1450 | static u32 sis190_get_msglevel(struct net_device *dev) |
| 1451 | { |
| 1452 | struct sis190_private *tp = netdev_priv(dev); |
| 1453 | |
| 1454 | return tp->msg_enable; |
| 1455 | } |
| 1456 | |
| 1457 | static void sis190_set_msglevel(struct net_device *dev, u32 value) |
| 1458 | { |
| 1459 | struct sis190_private *tp = netdev_priv(dev); |
| 1460 | |
| 1461 | tp->msg_enable = value; |
| 1462 | } |
| 1463 | |
| 1464 | static struct ethtool_ops sis190_ethtool_ops = { |
Francois Romieu | 43afb94 | 2005-07-30 13:10:21 +0200 | [diff] [blame] | 1465 | .get_settings = sis190_get_settings, |
| 1466 | .set_settings = sis190_set_settings, |
Francois Romieu | 890e8d0 | 2005-07-30 13:08:43 +0200 | [diff] [blame] | 1467 | .get_drvinfo = sis190_get_drvinfo, |
| 1468 | .get_regs_len = sis190_get_regs_len, |
| 1469 | .get_regs = sis190_get_regs, |
| 1470 | .get_link = ethtool_op_get_link, |
| 1471 | .get_msglevel = sis190_get_msglevel, |
| 1472 | .set_msglevel = sis190_set_msglevel, |
Francois Romieu | 43afb94 | 2005-07-30 13:10:21 +0200 | [diff] [blame] | 1473 | .nway_reset = sis190_nway_reset, |
Francois Romieu | 890e8d0 | 2005-07-30 13:08:43 +0200 | [diff] [blame] | 1474 | }; |
| 1475 | |
Francois Romieu | 43afb94 | 2005-07-30 13:10:21 +0200 | [diff] [blame] | 1476 | static int sis190_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) |
| 1477 | { |
| 1478 | struct sis190_private *tp = netdev_priv(dev); |
| 1479 | |
| 1480 | return !netif_running(dev) ? -EINVAL : |
| 1481 | generic_mii_ioctl(&tp->mii_if, if_mii(ifr), cmd, NULL); |
| 1482 | } |
| 1483 | |
Francois Romieu | 890e8d0 | 2005-07-30 13:08:43 +0200 | [diff] [blame] | 1484 | static int __devinit sis190_init_one(struct pci_dev *pdev, |
| 1485 | const struct pci_device_id *ent) |
| 1486 | { |
| 1487 | static int printed_version = 0; |
| 1488 | struct sis190_private *tp; |
| 1489 | struct net_device *dev; |
| 1490 | void __iomem *ioaddr; |
Francois Romieu | 830fb7d | 2005-07-30 13:12:37 +0200 | [diff] [blame] | 1491 | int rc; |
Francois Romieu | 890e8d0 | 2005-07-30 13:08:43 +0200 | [diff] [blame] | 1492 | |
| 1493 | if (!printed_version) { |
| 1494 | net_drv(&debug, KERN_INFO SIS190_DRIVER_NAME " loaded.\n"); |
| 1495 | printed_version = 1; |
| 1496 | } |
| 1497 | |
| 1498 | dev = sis190_init_board(pdev); |
| 1499 | if (IS_ERR(dev)) { |
| 1500 | rc = PTR_ERR(dev); |
| 1501 | goto out; |
| 1502 | } |
| 1503 | |
| 1504 | tp = netdev_priv(dev); |
| 1505 | ioaddr = tp->mmio_addr; |
| 1506 | |
Francois Romieu | 830fb7d | 2005-07-30 13:12:37 +0200 | [diff] [blame] | 1507 | rc = sis190_get_mac_addr(pdev, dev); |
| 1508 | if (rc < 0) |
| 1509 | goto err_release_board; |
Francois Romieu | 890e8d0 | 2005-07-30 13:08:43 +0200 | [diff] [blame] | 1510 | |
Francois Romieu | 830fb7d | 2005-07-30 13:12:37 +0200 | [diff] [blame] | 1511 | sis190_init_rxfilter(dev); |
Francois Romieu | 890e8d0 | 2005-07-30 13:08:43 +0200 | [diff] [blame] | 1512 | |
| 1513 | INIT_WORK(&tp->phy_task, sis190_phy_task, dev); |
| 1514 | |
| 1515 | dev->open = sis190_open; |
| 1516 | dev->stop = sis190_close; |
Francois Romieu | 43afb94 | 2005-07-30 13:10:21 +0200 | [diff] [blame] | 1517 | dev->do_ioctl = sis190_ioctl; |
Francois Romieu | 890e8d0 | 2005-07-30 13:08:43 +0200 | [diff] [blame] | 1518 | dev->get_stats = sis190_get_stats; |
| 1519 | dev->tx_timeout = sis190_tx_timeout; |
| 1520 | dev->watchdog_timeo = SIS190_TX_TIMEOUT; |
| 1521 | dev->hard_start_xmit = sis190_start_xmit; |
Francois Romieu | 4405d3b | 2005-07-30 13:09:20 +0200 | [diff] [blame] | 1522 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 1523 | dev->poll_controller = sis190_netpoll; |
| 1524 | #endif |
Francois Romieu | 890e8d0 | 2005-07-30 13:08:43 +0200 | [diff] [blame] | 1525 | dev->set_multicast_list = sis190_set_rx_mode; |
| 1526 | SET_ETHTOOL_OPS(dev, &sis190_ethtool_ops); |
| 1527 | dev->irq = pdev->irq; |
| 1528 | dev->base_addr = (unsigned long) 0xdead; |
| 1529 | |
| 1530 | spin_lock_init(&tp->lock); |
| 1531 | rc = register_netdev(dev); |
Francois Romieu | 830fb7d | 2005-07-30 13:12:37 +0200 | [diff] [blame] | 1532 | if (rc < 0) |
| 1533 | goto err_release_board; |
Francois Romieu | 890e8d0 | 2005-07-30 13:08:43 +0200 | [diff] [blame] | 1534 | |
| 1535 | pci_set_drvdata(pdev, dev); |
| 1536 | |
| 1537 | net_probe(tp, KERN_INFO "%s: %s at %p (IRQ: %d), " |
| 1538 | "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x\n", |
| 1539 | pci_name(pdev), sis_chip_info[ent->driver_data].name, |
| 1540 | ioaddr, dev->irq, |
| 1541 | dev->dev_addr[0], dev->dev_addr[1], |
| 1542 | dev->dev_addr[2], dev->dev_addr[3], |
| 1543 | dev->dev_addr[4], dev->dev_addr[5]); |
| 1544 | |
| 1545 | netif_carrier_off(dev); |
| 1546 | |
| 1547 | sis190_set_speed_auto(dev); |
| 1548 | out: |
| 1549 | return rc; |
Francois Romieu | 830fb7d | 2005-07-30 13:12:37 +0200 | [diff] [blame] | 1550 | |
| 1551 | err_release_board: |
| 1552 | sis190_release_board(pdev); |
| 1553 | goto out; |
Francois Romieu | 890e8d0 | 2005-07-30 13:08:43 +0200 | [diff] [blame] | 1554 | } |
| 1555 | |
| 1556 | static void __devexit sis190_remove_one(struct pci_dev *pdev) |
| 1557 | { |
| 1558 | struct net_device *dev = pci_get_drvdata(pdev); |
| 1559 | |
| 1560 | unregister_netdev(dev); |
| 1561 | sis190_release_board(pdev); |
| 1562 | pci_set_drvdata(pdev, NULL); |
| 1563 | } |
| 1564 | |
| 1565 | static struct pci_driver sis190_pci_driver = { |
| 1566 | .name = DRV_NAME, |
| 1567 | .id_table = sis190_pci_tbl, |
| 1568 | .probe = sis190_init_one, |
| 1569 | .remove = __devexit_p(sis190_remove_one), |
| 1570 | }; |
| 1571 | |
| 1572 | static int __init sis190_init_module(void) |
| 1573 | { |
| 1574 | return pci_module_init(&sis190_pci_driver); |
| 1575 | } |
| 1576 | |
| 1577 | static void __exit sis190_cleanup_module(void) |
| 1578 | { |
| 1579 | pci_unregister_driver(&sis190_pci_driver); |
| 1580 | } |
| 1581 | |
| 1582 | module_init(sis190_init_module); |
| 1583 | module_exit(sis190_cleanup_module); |