Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 1 | /* |
| 2 | * JMicron JMC2x0 series PCIe Ethernet Linux Device Driver |
| 3 | * |
| 4 | * Copyright 2008 JMicron Technology Corporation |
| 5 | * http://www.jmicron.com/ |
Guo-Fu Tseng | e47dfcd | 2010-10-18 14:10:44 +0000 | [diff] [blame] | 6 | * Copyright (c) 2009 - 2010 Guo-Fu Tseng <cooldavid@cooldavid.org> |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 7 | * |
| 8 | * Author: Guo-Fu Tseng <cooldavid@cooldavid.org> |
| 9 | * |
| 10 | * This program is free software; you can redistribute it and/or modify |
| 11 | * it under the terms of the GNU General Public License as published by |
| 12 | * the Free Software Foundation; either version 2 of the License. |
| 13 | * |
| 14 | * This program is distributed in the hope that it will be useful, |
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | * GNU General Public License for more details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU General Public License |
| 20 | * along with this program; if not, write to the Free Software |
| 21 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 22 | * |
| 23 | */ |
| 24 | |
Joe Perches | 49d70c4 | 2010-09-04 22:21:05 +0000 | [diff] [blame] | 25 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
| 26 | |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 27 | #include <linux/module.h> |
| 28 | #include <linux/kernel.h> |
| 29 | #include <linux/pci.h> |
| 30 | #include <linux/netdevice.h> |
| 31 | #include <linux/etherdevice.h> |
| 32 | #include <linux/ethtool.h> |
| 33 | #include <linux/mii.h> |
| 34 | #include <linux/crc32.h> |
| 35 | #include <linux/delay.h> |
| 36 | #include <linux/spinlock.h> |
| 37 | #include <linux/in.h> |
| 38 | #include <linux/ip.h> |
| 39 | #include <linux/ipv6.h> |
| 40 | #include <linux/tcp.h> |
| 41 | #include <linux/udp.h> |
| 42 | #include <linux/if_vlan.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 43 | #include <linux/slab.h> |
Kamalesh Babulal | b7c6bfb | 2008-10-13 18:41:01 -0700 | [diff] [blame] | 44 | #include <net/ip6_checksum.h> |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 45 | #include "jme.h" |
| 46 | |
| 47 | static int force_pseudohp = -1; |
| 48 | static int no_pseudohp = -1; |
| 49 | static int no_extplug = -1; |
| 50 | module_param(force_pseudohp, int, 0); |
| 51 | MODULE_PARM_DESC(force_pseudohp, |
| 52 | "Enable pseudo hot-plug feature manually by driver instead of BIOS."); |
| 53 | module_param(no_pseudohp, int, 0); |
| 54 | MODULE_PARM_DESC(no_pseudohp, "Disable pseudo hot-plug feature."); |
| 55 | module_param(no_extplug, int, 0); |
| 56 | MODULE_PARM_DESC(no_extplug, |
| 57 | "Do not use external plug signal for pseudo hot-plug."); |
| 58 | |
| 59 | static int |
| 60 | jme_mdio_read(struct net_device *netdev, int phy, int reg) |
| 61 | { |
| 62 | struct jme_adapter *jme = netdev_priv(netdev); |
| 63 | int i, val, again = (reg == MII_BMSR) ? 1 : 0; |
| 64 | |
| 65 | read_again: |
| 66 | jwrite32(jme, JME_SMI, SMI_OP_REQ | |
| 67 | smi_phy_addr(phy) | |
| 68 | smi_reg_addr(reg)); |
| 69 | |
| 70 | wmb(); |
| 71 | for (i = JME_PHY_TIMEOUT * 50 ; i > 0 ; --i) { |
| 72 | udelay(20); |
| 73 | val = jread32(jme, JME_SMI); |
| 74 | if ((val & SMI_OP_REQ) == 0) |
| 75 | break; |
| 76 | } |
| 77 | |
| 78 | if (i == 0) { |
Joe Perches | 49d70c4 | 2010-09-04 22:21:05 +0000 | [diff] [blame] | 79 | pr_err("phy(%d) read timeout : %d\n", phy, reg); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 80 | return 0; |
| 81 | } |
| 82 | |
| 83 | if (again--) |
| 84 | goto read_again; |
| 85 | |
| 86 | return (val & SMI_DATA_MASK) >> SMI_DATA_SHIFT; |
| 87 | } |
| 88 | |
| 89 | static void |
| 90 | jme_mdio_write(struct net_device *netdev, |
| 91 | int phy, int reg, int val) |
| 92 | { |
| 93 | struct jme_adapter *jme = netdev_priv(netdev); |
| 94 | int i; |
| 95 | |
| 96 | jwrite32(jme, JME_SMI, SMI_OP_WRITE | SMI_OP_REQ | |
| 97 | ((val << SMI_DATA_SHIFT) & SMI_DATA_MASK) | |
| 98 | smi_phy_addr(phy) | smi_reg_addr(reg)); |
| 99 | |
| 100 | wmb(); |
| 101 | for (i = JME_PHY_TIMEOUT * 50 ; i > 0 ; --i) { |
| 102 | udelay(20); |
| 103 | if ((jread32(jme, JME_SMI) & SMI_OP_REQ) == 0) |
| 104 | break; |
| 105 | } |
| 106 | |
| 107 | if (i == 0) |
Joe Perches | 49d70c4 | 2010-09-04 22:21:05 +0000 | [diff] [blame] | 108 | pr_err("phy(%d) write timeout : %d\n", phy, reg); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 109 | } |
| 110 | |
| 111 | static inline void |
| 112 | jme_reset_phy_processor(struct jme_adapter *jme) |
| 113 | { |
| 114 | u32 val; |
| 115 | |
| 116 | jme_mdio_write(jme->dev, |
| 117 | jme->mii_if.phy_id, |
| 118 | MII_ADVERTISE, ADVERTISE_ALL | |
| 119 | ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM); |
| 120 | |
| 121 | if (jme->pdev->device == PCI_DEVICE_ID_JMICRON_JMC250) |
| 122 | jme_mdio_write(jme->dev, |
| 123 | jme->mii_if.phy_id, |
| 124 | MII_CTRL1000, |
| 125 | ADVERTISE_1000FULL | ADVERTISE_1000HALF); |
| 126 | |
| 127 | val = jme_mdio_read(jme->dev, |
| 128 | jme->mii_if.phy_id, |
| 129 | MII_BMCR); |
| 130 | |
| 131 | jme_mdio_write(jme->dev, |
| 132 | jme->mii_if.phy_id, |
| 133 | MII_BMCR, val | BMCR_RESET); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 134 | } |
| 135 | |
| 136 | static void |
| 137 | jme_setup_wakeup_frame(struct jme_adapter *jme, |
Joe Perches | b6bc765 | 2010-12-21 02:16:08 -0800 | [diff] [blame^] | 138 | const u32 *mask, u32 crc, int fnr) |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 139 | { |
| 140 | int i; |
| 141 | |
| 142 | /* |
| 143 | * Setup CRC pattern |
| 144 | */ |
| 145 | jwrite32(jme, JME_WFOI, WFOI_CRC_SEL | (fnr & WFOI_FRAME_SEL)); |
| 146 | wmb(); |
| 147 | jwrite32(jme, JME_WFODP, crc); |
| 148 | wmb(); |
| 149 | |
| 150 | /* |
| 151 | * Setup Mask |
| 152 | */ |
| 153 | for (i = 0 ; i < WAKEUP_FRAME_MASK_DWNR ; ++i) { |
| 154 | jwrite32(jme, JME_WFOI, |
| 155 | ((i << WFOI_MASK_SHIFT) & WFOI_MASK_SEL) | |
| 156 | (fnr & WFOI_FRAME_SEL)); |
| 157 | wmb(); |
| 158 | jwrite32(jme, JME_WFODP, mask[i]); |
| 159 | wmb(); |
| 160 | } |
| 161 | } |
| 162 | |
| 163 | static inline void |
| 164 | jme_reset_mac_processor(struct jme_adapter *jme) |
| 165 | { |
Joe Perches | b6bc765 | 2010-12-21 02:16:08 -0800 | [diff] [blame^] | 166 | static const u32 mask[WAKEUP_FRAME_MASK_DWNR] = {0, 0, 0, 0}; |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 167 | u32 crc = 0xCDCDCDCD; |
| 168 | u32 gpreg0; |
| 169 | int i; |
| 170 | |
| 171 | jwrite32(jme, JME_GHC, jme->reg_ghc | GHC_SWRST); |
| 172 | udelay(2); |
| 173 | jwrite32(jme, JME_GHC, jme->reg_ghc); |
| 174 | |
| 175 | jwrite32(jme, JME_RXDBA_LO, 0x00000000); |
| 176 | jwrite32(jme, JME_RXDBA_HI, 0x00000000); |
| 177 | jwrite32(jme, JME_RXQDC, 0x00000000); |
| 178 | jwrite32(jme, JME_RXNDA, 0x00000000); |
| 179 | jwrite32(jme, JME_TXDBA_LO, 0x00000000); |
| 180 | jwrite32(jme, JME_TXDBA_HI, 0x00000000); |
| 181 | jwrite32(jme, JME_TXQDC, 0x00000000); |
| 182 | jwrite32(jme, JME_TXNDA, 0x00000000); |
| 183 | |
| 184 | jwrite32(jme, JME_RXMCHT_LO, 0x00000000); |
| 185 | jwrite32(jme, JME_RXMCHT_HI, 0x00000000); |
| 186 | for (i = 0 ; i < WAKEUP_FRAME_NR ; ++i) |
| 187 | jme_setup_wakeup_frame(jme, mask, crc, i); |
| 188 | if (jme->fpgaver) |
| 189 | gpreg0 = GPREG0_DEFAULT | GPREG0_LNKINTPOLL; |
| 190 | else |
| 191 | gpreg0 = GPREG0_DEFAULT; |
| 192 | jwrite32(jme, JME_GPREG0, gpreg0); |
Guo-Fu Tseng | a821ebe | 2008-10-08 19:48:58 -0700 | [diff] [blame] | 193 | jwrite32(jme, JME_GPREG1, GPREG1_DEFAULT); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 194 | } |
| 195 | |
| 196 | static inline void |
| 197 | jme_reset_ghc_speed(struct jme_adapter *jme) |
| 198 | { |
| 199 | jme->reg_ghc &= ~(GHC_SPEED_1000M | GHC_DPX); |
| 200 | jwrite32(jme, JME_GHC, jme->reg_ghc); |
| 201 | } |
| 202 | |
| 203 | static inline void |
| 204 | jme_clear_pm(struct jme_adapter *jme) |
| 205 | { |
| 206 | jwrite32(jme, JME_PMCS, 0xFFFF0000 | jme->reg_pmcs); |
| 207 | pci_set_power_state(jme->pdev, PCI_D0); |
| 208 | pci_enable_wake(jme->pdev, PCI_D0, false); |
| 209 | } |
| 210 | |
| 211 | static int |
| 212 | jme_reload_eeprom(struct jme_adapter *jme) |
| 213 | { |
| 214 | u32 val; |
| 215 | int i; |
| 216 | |
| 217 | val = jread32(jme, JME_SMBCSR); |
| 218 | |
| 219 | if (val & SMBCSR_EEPROMD) { |
| 220 | val |= SMBCSR_CNACK; |
| 221 | jwrite32(jme, JME_SMBCSR, val); |
| 222 | val |= SMBCSR_RELOAD; |
| 223 | jwrite32(jme, JME_SMBCSR, val); |
| 224 | mdelay(12); |
| 225 | |
| 226 | for (i = JME_EEPROM_RELOAD_TIMEOUT; i > 0; --i) { |
| 227 | mdelay(1); |
| 228 | if ((jread32(jme, JME_SMBCSR) & SMBCSR_RELOAD) == 0) |
| 229 | break; |
| 230 | } |
| 231 | |
| 232 | if (i == 0) { |
Joe Perches | 49d70c4 | 2010-09-04 22:21:05 +0000 | [diff] [blame] | 233 | pr_err("eeprom reload timeout\n"); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 234 | return -EIO; |
| 235 | } |
| 236 | } |
| 237 | |
| 238 | return 0; |
| 239 | } |
| 240 | |
| 241 | static void |
| 242 | jme_load_macaddr(struct net_device *netdev) |
| 243 | { |
| 244 | struct jme_adapter *jme = netdev_priv(netdev); |
| 245 | unsigned char macaddr[6]; |
| 246 | u32 val; |
| 247 | |
| 248 | spin_lock_bh(&jme->macaddr_lock); |
| 249 | val = jread32(jme, JME_RXUMA_LO); |
| 250 | macaddr[0] = (val >> 0) & 0xFF; |
| 251 | macaddr[1] = (val >> 8) & 0xFF; |
| 252 | macaddr[2] = (val >> 16) & 0xFF; |
| 253 | macaddr[3] = (val >> 24) & 0xFF; |
| 254 | val = jread32(jme, JME_RXUMA_HI); |
| 255 | macaddr[4] = (val >> 0) & 0xFF; |
| 256 | macaddr[5] = (val >> 8) & 0xFF; |
| 257 | memcpy(netdev->dev_addr, macaddr, 6); |
| 258 | spin_unlock_bh(&jme->macaddr_lock); |
| 259 | } |
| 260 | |
| 261 | static inline void |
| 262 | jme_set_rx_pcc(struct jme_adapter *jme, int p) |
| 263 | { |
| 264 | switch (p) { |
| 265 | case PCC_OFF: |
| 266 | jwrite32(jme, JME_PCCRX0, |
| 267 | ((PCC_OFF_TO << PCCRXTO_SHIFT) & PCCRXTO_MASK) | |
| 268 | ((PCC_OFF_CNT << PCCRX_SHIFT) & PCCRX_MASK)); |
| 269 | break; |
| 270 | case PCC_P1: |
| 271 | jwrite32(jme, JME_PCCRX0, |
| 272 | ((PCC_P1_TO << PCCRXTO_SHIFT) & PCCRXTO_MASK) | |
| 273 | ((PCC_P1_CNT << PCCRX_SHIFT) & PCCRX_MASK)); |
| 274 | break; |
| 275 | case PCC_P2: |
| 276 | jwrite32(jme, JME_PCCRX0, |
| 277 | ((PCC_P2_TO << PCCRXTO_SHIFT) & PCCRXTO_MASK) | |
| 278 | ((PCC_P2_CNT << PCCRX_SHIFT) & PCCRX_MASK)); |
| 279 | break; |
| 280 | case PCC_P3: |
| 281 | jwrite32(jme, JME_PCCRX0, |
| 282 | ((PCC_P3_TO << PCCRXTO_SHIFT) & PCCRXTO_MASK) | |
| 283 | ((PCC_P3_CNT << PCCRX_SHIFT) & PCCRX_MASK)); |
| 284 | break; |
| 285 | default: |
| 286 | break; |
| 287 | } |
| 288 | wmb(); |
| 289 | |
| 290 | if (!(test_bit(JME_FLAG_POLL, &jme->flags))) |
Joe Perches | f8502ce | 2010-02-09 11:49:51 +0000 | [diff] [blame] | 291 | netif_info(jme, rx_status, jme->dev, "Switched to PCC_P%d\n", p); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 292 | } |
| 293 | |
| 294 | static void |
| 295 | jme_start_irq(struct jme_adapter *jme) |
| 296 | { |
| 297 | register struct dynpcc_info *dpi = &(jme->dpi); |
| 298 | |
| 299 | jme_set_rx_pcc(jme, PCC_P1); |
| 300 | dpi->cur = PCC_P1; |
| 301 | dpi->attempt = PCC_P1; |
| 302 | dpi->cnt = 0; |
| 303 | |
| 304 | jwrite32(jme, JME_PCCTX, |
| 305 | ((PCC_TX_TO << PCCTXTO_SHIFT) & PCCTXTO_MASK) | |
| 306 | ((PCC_TX_CNT << PCCTX_SHIFT) & PCCTX_MASK) | |
| 307 | PCCTXQ0_EN |
| 308 | ); |
| 309 | |
| 310 | /* |
| 311 | * Enable Interrupts |
| 312 | */ |
| 313 | jwrite32(jme, JME_IENS, INTR_ENABLE); |
| 314 | } |
| 315 | |
| 316 | static inline void |
| 317 | jme_stop_irq(struct jme_adapter *jme) |
| 318 | { |
| 319 | /* |
| 320 | * Disable Interrupts |
| 321 | */ |
| 322 | jwrite32f(jme, JME_IENC, INTR_ENABLE); |
| 323 | } |
| 324 | |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 325 | static u32 |
| 326 | jme_linkstat_from_phy(struct jme_adapter *jme) |
| 327 | { |
| 328 | u32 phylink, bmsr; |
| 329 | |
| 330 | phylink = jme_mdio_read(jme->dev, jme->mii_if.phy_id, 17); |
| 331 | bmsr = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_BMSR); |
| 332 | if (bmsr & BMSR_ANCOMP) |
| 333 | phylink |= PHY_LINK_AUTONEG_COMPLETE; |
| 334 | |
| 335 | return phylink; |
| 336 | } |
| 337 | |
| 338 | static inline void |
| 339 | jme_set_phyfifoa(struct jme_adapter *jme) |
| 340 | { |
| 341 | jme_mdio_write(jme->dev, jme->mii_if.phy_id, 27, 0x0004); |
| 342 | } |
| 343 | |
| 344 | static inline void |
| 345 | jme_set_phyfifob(struct jme_adapter *jme) |
| 346 | { |
| 347 | jme_mdio_write(jme->dev, jme->mii_if.phy_id, 27, 0x0000); |
| 348 | } |
| 349 | |
| 350 | static int |
| 351 | jme_check_link(struct net_device *netdev, int testonly) |
| 352 | { |
| 353 | struct jme_adapter *jme = netdev_priv(netdev); |
Guo-Fu Tseng | a821ebe | 2008-10-08 19:48:58 -0700 | [diff] [blame] | 354 | u32 phylink, ghc, cnt = JME_SPDRSV_TIMEOUT, bmcr, gpreg1; |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 355 | char linkmsg[64]; |
| 356 | int rc = 0; |
| 357 | |
| 358 | linkmsg[0] = '\0'; |
| 359 | |
| 360 | if (jme->fpgaver) |
| 361 | phylink = jme_linkstat_from_phy(jme); |
| 362 | else |
| 363 | phylink = jread32(jme, JME_PHY_LINK); |
| 364 | |
| 365 | if (phylink & PHY_LINK_UP) { |
| 366 | if (!(phylink & PHY_LINK_AUTONEG_COMPLETE)) { |
| 367 | /* |
| 368 | * If we did not enable AN |
| 369 | * Speed/Duplex Info should be obtained from SMI |
| 370 | */ |
| 371 | phylink = PHY_LINK_UP; |
| 372 | |
| 373 | bmcr = jme_mdio_read(jme->dev, |
| 374 | jme->mii_if.phy_id, |
| 375 | MII_BMCR); |
| 376 | |
| 377 | phylink |= ((bmcr & BMCR_SPEED1000) && |
| 378 | (bmcr & BMCR_SPEED100) == 0) ? |
| 379 | PHY_LINK_SPEED_1000M : |
| 380 | (bmcr & BMCR_SPEED100) ? |
| 381 | PHY_LINK_SPEED_100M : |
| 382 | PHY_LINK_SPEED_10M; |
| 383 | |
| 384 | phylink |= (bmcr & BMCR_FULLDPLX) ? |
| 385 | PHY_LINK_DUPLEX : 0; |
| 386 | |
| 387 | strcat(linkmsg, "Forced: "); |
| 388 | } else { |
| 389 | /* |
| 390 | * Keep polling for speed/duplex resolve complete |
| 391 | */ |
| 392 | while (!(phylink & PHY_LINK_SPEEDDPU_RESOLVED) && |
| 393 | --cnt) { |
| 394 | |
| 395 | udelay(1); |
| 396 | |
| 397 | if (jme->fpgaver) |
| 398 | phylink = jme_linkstat_from_phy(jme); |
| 399 | else |
| 400 | phylink = jread32(jme, JME_PHY_LINK); |
| 401 | } |
| 402 | if (!cnt) |
Joe Perches | 49d70c4 | 2010-09-04 22:21:05 +0000 | [diff] [blame] | 403 | pr_err("Waiting speed resolve timeout\n"); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 404 | |
| 405 | strcat(linkmsg, "ANed: "); |
| 406 | } |
| 407 | |
| 408 | if (jme->phylink == phylink) { |
| 409 | rc = 1; |
| 410 | goto out; |
| 411 | } |
| 412 | if (testonly) |
| 413 | goto out; |
| 414 | |
| 415 | jme->phylink = phylink; |
| 416 | |
Guo-Fu Tseng | eb352b8 | 2009-02-27 17:58:16 +0000 | [diff] [blame] | 417 | ghc = jme->reg_ghc & ~(GHC_SPEED | GHC_DPX | |
| 418 | GHC_TO_CLK_PCIE | GHC_TXMAC_CLK_PCIE | |
| 419 | GHC_TO_CLK_GPHY | GHC_TXMAC_CLK_GPHY); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 420 | switch (phylink & PHY_LINK_SPEED_MASK) { |
| 421 | case PHY_LINK_SPEED_10M: |
akeemting | 4f40bf4 | 2008-12-03 21:19:16 -0800 | [diff] [blame] | 422 | ghc |= GHC_SPEED_10M | |
| 423 | GHC_TO_CLK_PCIE | GHC_TXMAC_CLK_PCIE; |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 424 | strcat(linkmsg, "10 Mbps, "); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 425 | break; |
| 426 | case PHY_LINK_SPEED_100M: |
akeemting | 4f40bf4 | 2008-12-03 21:19:16 -0800 | [diff] [blame] | 427 | ghc |= GHC_SPEED_100M | |
| 428 | GHC_TO_CLK_PCIE | GHC_TXMAC_CLK_PCIE; |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 429 | strcat(linkmsg, "100 Mbps, "); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 430 | break; |
| 431 | case PHY_LINK_SPEED_1000M: |
akeemting | 4f40bf4 | 2008-12-03 21:19:16 -0800 | [diff] [blame] | 432 | ghc |= GHC_SPEED_1000M | |
| 433 | GHC_TO_CLK_GPHY | GHC_TXMAC_CLK_GPHY; |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 434 | strcat(linkmsg, "1000 Mbps, "); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 435 | break; |
| 436 | default: |
| 437 | break; |
| 438 | } |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 439 | |
| 440 | if (phylink & PHY_LINK_DUPLEX) { |
| 441 | jwrite32(jme, JME_TXMCS, TXMCS_DEFAULT); |
Guo-Fu Tseng | a821ebe | 2008-10-08 19:48:58 -0700 | [diff] [blame] | 442 | ghc |= GHC_DPX; |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 443 | } else { |
| 444 | jwrite32(jme, JME_TXMCS, TXMCS_DEFAULT | |
| 445 | TXMCS_BACKOFF | |
| 446 | TXMCS_CARRIERSENSE | |
| 447 | TXMCS_COLLISION); |
| 448 | jwrite32(jme, JME_TXTRHD, TXTRHD_TXPEN | |
| 449 | ((0x2000 << TXTRHD_TXP_SHIFT) & TXTRHD_TXP) | |
| 450 | TXTRHD_TXREN | |
| 451 | ((8 << TXTRHD_TXRL_SHIFT) & TXTRHD_TXRL)); |
| 452 | } |
Guo-Fu Tseng | a821ebe | 2008-10-08 19:48:58 -0700 | [diff] [blame] | 453 | |
| 454 | gpreg1 = GPREG1_DEFAULT; |
| 455 | if (is_buggy250(jme->pdev->device, jme->chiprev)) { |
| 456 | if (!(phylink & PHY_LINK_DUPLEX)) |
| 457 | gpreg1 |= GPREG1_HALFMODEPATCH; |
| 458 | switch (phylink & PHY_LINK_SPEED_MASK) { |
| 459 | case PHY_LINK_SPEED_10M: |
| 460 | jme_set_phyfifoa(jme); |
| 461 | gpreg1 |= GPREG1_RSSPATCH; |
| 462 | break; |
| 463 | case PHY_LINK_SPEED_100M: |
| 464 | jme_set_phyfifob(jme); |
| 465 | gpreg1 |= GPREG1_RSSPATCH; |
| 466 | break; |
| 467 | case PHY_LINK_SPEED_1000M: |
| 468 | jme_set_phyfifoa(jme); |
| 469 | break; |
| 470 | default: |
| 471 | break; |
| 472 | } |
| 473 | } |
akeemting | 4f40bf4 | 2008-12-03 21:19:16 -0800 | [diff] [blame] | 474 | |
Guo-Fu Tseng | a821ebe | 2008-10-08 19:48:58 -0700 | [diff] [blame] | 475 | jwrite32(jme, JME_GPREG1, gpreg1); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 476 | jwrite32(jme, JME_GHC, ghc); |
akeemting | 4f40bf4 | 2008-12-03 21:19:16 -0800 | [diff] [blame] | 477 | jme->reg_ghc = ghc; |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 478 | |
akeemting | 4f40bf4 | 2008-12-03 21:19:16 -0800 | [diff] [blame] | 479 | strcat(linkmsg, (phylink & PHY_LINK_DUPLEX) ? |
| 480 | "Full-Duplex, " : |
| 481 | "Half-Duplex, "); |
| 482 | strcat(linkmsg, (phylink & PHY_LINK_MDI_STAT) ? |
| 483 | "MDI-X" : |
| 484 | "MDI"); |
Joe Perches | 49d70c4 | 2010-09-04 22:21:05 +0000 | [diff] [blame] | 485 | netif_info(jme, link, jme->dev, "Link is up at %s\n", linkmsg); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 486 | netif_carrier_on(netdev); |
| 487 | } else { |
| 488 | if (testonly) |
| 489 | goto out; |
| 490 | |
Joe Perches | 49d70c4 | 2010-09-04 22:21:05 +0000 | [diff] [blame] | 491 | netif_info(jme, link, jme->dev, "Link is down\n"); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 492 | jme->phylink = 0; |
| 493 | netif_carrier_off(netdev); |
| 494 | } |
| 495 | |
| 496 | out: |
| 497 | return rc; |
| 498 | } |
| 499 | |
| 500 | static int |
| 501 | jme_setup_tx_resources(struct jme_adapter *jme) |
| 502 | { |
| 503 | struct jme_ring *txring = &(jme->txring[0]); |
| 504 | |
| 505 | txring->alloc = dma_alloc_coherent(&(jme->pdev->dev), |
| 506 | TX_RING_ALLOC_SIZE(jme->tx_ring_size), |
| 507 | &(txring->dmaalloc), |
| 508 | GFP_ATOMIC); |
| 509 | |
Guo-Fu Tseng | 47bd10d | 2009-07-06 04:39:46 +0000 | [diff] [blame] | 510 | if (!txring->alloc) |
| 511 | goto err_set_null; |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 512 | |
| 513 | /* |
| 514 | * 16 Bytes align |
| 515 | */ |
| 516 | txring->desc = (void *)ALIGN((unsigned long)(txring->alloc), |
| 517 | RING_DESC_ALIGN); |
| 518 | txring->dma = ALIGN(txring->dmaalloc, RING_DESC_ALIGN); |
| 519 | txring->next_to_use = 0; |
| 520 | atomic_set(&txring->next_to_clean, 0); |
| 521 | atomic_set(&txring->nr_free, jme->tx_ring_size); |
| 522 | |
Guo-Fu Tseng | 47bd10d | 2009-07-06 04:39:46 +0000 | [diff] [blame] | 523 | txring->bufinf = kmalloc(sizeof(struct jme_buffer_info) * |
| 524 | jme->tx_ring_size, GFP_ATOMIC); |
| 525 | if (unlikely(!(txring->bufinf))) |
| 526 | goto err_free_txring; |
| 527 | |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 528 | /* |
| 529 | * Initialize Transmit Descriptors |
| 530 | */ |
| 531 | memset(txring->alloc, 0, TX_RING_ALLOC_SIZE(jme->tx_ring_size)); |
| 532 | memset(txring->bufinf, 0, |
| 533 | sizeof(struct jme_buffer_info) * jme->tx_ring_size); |
| 534 | |
| 535 | return 0; |
Guo-Fu Tseng | 47bd10d | 2009-07-06 04:39:46 +0000 | [diff] [blame] | 536 | |
| 537 | err_free_txring: |
| 538 | dma_free_coherent(&(jme->pdev->dev), |
| 539 | TX_RING_ALLOC_SIZE(jme->tx_ring_size), |
| 540 | txring->alloc, |
| 541 | txring->dmaalloc); |
| 542 | |
| 543 | err_set_null: |
| 544 | txring->desc = NULL; |
| 545 | txring->dmaalloc = 0; |
| 546 | txring->dma = 0; |
| 547 | txring->bufinf = NULL; |
| 548 | |
| 549 | return -ENOMEM; |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 550 | } |
| 551 | |
| 552 | static void |
| 553 | jme_free_tx_resources(struct jme_adapter *jme) |
| 554 | { |
| 555 | int i; |
| 556 | struct jme_ring *txring = &(jme->txring[0]); |
Guo-Fu Tseng | eacf69a | 2009-07-06 04:36:30 +0000 | [diff] [blame] | 557 | struct jme_buffer_info *txbi; |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 558 | |
| 559 | if (txring->alloc) { |
Guo-Fu Tseng | 47bd10d | 2009-07-06 04:39:46 +0000 | [diff] [blame] | 560 | if (txring->bufinf) { |
| 561 | for (i = 0 ; i < jme->tx_ring_size ; ++i) { |
| 562 | txbi = txring->bufinf + i; |
| 563 | if (txbi->skb) { |
| 564 | dev_kfree_skb(txbi->skb); |
| 565 | txbi->skb = NULL; |
| 566 | } |
| 567 | txbi->mapping = 0; |
| 568 | txbi->len = 0; |
| 569 | txbi->nr_desc = 0; |
| 570 | txbi->start_xmit = 0; |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 571 | } |
Guo-Fu Tseng | 47bd10d | 2009-07-06 04:39:46 +0000 | [diff] [blame] | 572 | kfree(txring->bufinf); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 573 | } |
| 574 | |
| 575 | dma_free_coherent(&(jme->pdev->dev), |
| 576 | TX_RING_ALLOC_SIZE(jme->tx_ring_size), |
| 577 | txring->alloc, |
| 578 | txring->dmaalloc); |
| 579 | |
| 580 | txring->alloc = NULL; |
| 581 | txring->desc = NULL; |
| 582 | txring->dmaalloc = 0; |
| 583 | txring->dma = 0; |
Guo-Fu Tseng | 47bd10d | 2009-07-06 04:39:46 +0000 | [diff] [blame] | 584 | txring->bufinf = NULL; |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 585 | } |
| 586 | txring->next_to_use = 0; |
| 587 | atomic_set(&txring->next_to_clean, 0); |
| 588 | atomic_set(&txring->nr_free, 0); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 589 | } |
| 590 | |
| 591 | static inline void |
| 592 | jme_enable_tx_engine(struct jme_adapter *jme) |
| 593 | { |
| 594 | /* |
| 595 | * Select Queue 0 |
| 596 | */ |
| 597 | jwrite32(jme, JME_TXCS, TXCS_DEFAULT | TXCS_SELECT_QUEUE0); |
| 598 | wmb(); |
| 599 | |
| 600 | /* |
| 601 | * Setup TX Queue 0 DMA Bass Address |
| 602 | */ |
| 603 | jwrite32(jme, JME_TXDBA_LO, (__u64)jme->txring[0].dma & 0xFFFFFFFFUL); |
| 604 | jwrite32(jme, JME_TXDBA_HI, (__u64)(jme->txring[0].dma) >> 32); |
| 605 | jwrite32(jme, JME_TXNDA, (__u64)jme->txring[0].dma & 0xFFFFFFFFUL); |
| 606 | |
| 607 | /* |
| 608 | * Setup TX Descptor Count |
| 609 | */ |
| 610 | jwrite32(jme, JME_TXQDC, jme->tx_ring_size); |
| 611 | |
| 612 | /* |
| 613 | * Enable TX Engine |
| 614 | */ |
| 615 | wmb(); |
| 616 | jwrite32(jme, JME_TXCS, jme->reg_txcs | |
| 617 | TXCS_SELECT_QUEUE0 | |
| 618 | TXCS_ENABLE); |
| 619 | |
| 620 | } |
| 621 | |
| 622 | static inline void |
| 623 | jme_restart_tx_engine(struct jme_adapter *jme) |
| 624 | { |
| 625 | /* |
| 626 | * Restart TX Engine |
| 627 | */ |
| 628 | jwrite32(jme, JME_TXCS, jme->reg_txcs | |
| 629 | TXCS_SELECT_QUEUE0 | |
| 630 | TXCS_ENABLE); |
| 631 | } |
| 632 | |
| 633 | static inline void |
| 634 | jme_disable_tx_engine(struct jme_adapter *jme) |
| 635 | { |
| 636 | int i; |
| 637 | u32 val; |
| 638 | |
| 639 | /* |
| 640 | * Disable TX Engine |
| 641 | */ |
| 642 | jwrite32(jme, JME_TXCS, jme->reg_txcs | TXCS_SELECT_QUEUE0); |
| 643 | wmb(); |
| 644 | |
| 645 | val = jread32(jme, JME_TXCS); |
| 646 | for (i = JME_TX_DISABLE_TIMEOUT ; (val & TXCS_ENABLE) && i > 0 ; --i) { |
| 647 | mdelay(1); |
| 648 | val = jread32(jme, JME_TXCS); |
| 649 | rmb(); |
| 650 | } |
| 651 | |
| 652 | if (!i) |
Joe Perches | 49d70c4 | 2010-09-04 22:21:05 +0000 | [diff] [blame] | 653 | pr_err("Disable TX engine timeout\n"); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 654 | } |
| 655 | |
| 656 | static void |
| 657 | jme_set_clean_rxdesc(struct jme_adapter *jme, int i) |
| 658 | { |
Guo-Fu Tseng | eacf69a | 2009-07-06 04:36:30 +0000 | [diff] [blame] | 659 | struct jme_ring *rxring = &(jme->rxring[0]); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 660 | register struct rxdesc *rxdesc = rxring->desc; |
| 661 | struct jme_buffer_info *rxbi = rxring->bufinf; |
| 662 | rxdesc += i; |
| 663 | rxbi += i; |
| 664 | |
| 665 | rxdesc->dw[0] = 0; |
| 666 | rxdesc->dw[1] = 0; |
| 667 | rxdesc->desc1.bufaddrh = cpu_to_le32((__u64)rxbi->mapping >> 32); |
| 668 | rxdesc->desc1.bufaddrl = cpu_to_le32( |
| 669 | (__u64)rxbi->mapping & 0xFFFFFFFFUL); |
| 670 | rxdesc->desc1.datalen = cpu_to_le16(rxbi->len); |
| 671 | if (jme->dev->features & NETIF_F_HIGHDMA) |
| 672 | rxdesc->desc1.flags = RXFLAG_64BIT; |
| 673 | wmb(); |
| 674 | rxdesc->desc1.flags |= RXFLAG_OWN | RXFLAG_INT; |
| 675 | } |
| 676 | |
| 677 | static int |
| 678 | jme_make_new_rx_buf(struct jme_adapter *jme, int i) |
| 679 | { |
| 680 | struct jme_ring *rxring = &(jme->rxring[0]); |
| 681 | struct jme_buffer_info *rxbi = rxring->bufinf + i; |
| 682 | struct sk_buff *skb; |
| 683 | |
| 684 | skb = netdev_alloc_skb(jme->dev, |
| 685 | jme->dev->mtu + RX_EXTRA_LEN); |
| 686 | if (unlikely(!skb)) |
| 687 | return -ENOMEM; |
| 688 | |
| 689 | rxbi->skb = skb; |
| 690 | rxbi->len = skb_tailroom(skb); |
| 691 | rxbi->mapping = pci_map_page(jme->pdev, |
| 692 | virt_to_page(skb->data), |
| 693 | offset_in_page(skb->data), |
| 694 | rxbi->len, |
| 695 | PCI_DMA_FROMDEVICE); |
| 696 | |
| 697 | return 0; |
| 698 | } |
| 699 | |
| 700 | static void |
| 701 | jme_free_rx_buf(struct jme_adapter *jme, int i) |
| 702 | { |
| 703 | struct jme_ring *rxring = &(jme->rxring[0]); |
| 704 | struct jme_buffer_info *rxbi = rxring->bufinf; |
| 705 | rxbi += i; |
| 706 | |
| 707 | if (rxbi->skb) { |
| 708 | pci_unmap_page(jme->pdev, |
| 709 | rxbi->mapping, |
| 710 | rxbi->len, |
| 711 | PCI_DMA_FROMDEVICE); |
| 712 | dev_kfree_skb(rxbi->skb); |
| 713 | rxbi->skb = NULL; |
| 714 | rxbi->mapping = 0; |
| 715 | rxbi->len = 0; |
| 716 | } |
| 717 | } |
| 718 | |
| 719 | static void |
| 720 | jme_free_rx_resources(struct jme_adapter *jme) |
| 721 | { |
| 722 | int i; |
| 723 | struct jme_ring *rxring = &(jme->rxring[0]); |
| 724 | |
| 725 | if (rxring->alloc) { |
Guo-Fu Tseng | 47bd10d | 2009-07-06 04:39:46 +0000 | [diff] [blame] | 726 | if (rxring->bufinf) { |
| 727 | for (i = 0 ; i < jme->rx_ring_size ; ++i) |
| 728 | jme_free_rx_buf(jme, i); |
| 729 | kfree(rxring->bufinf); |
| 730 | } |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 731 | |
| 732 | dma_free_coherent(&(jme->pdev->dev), |
| 733 | RX_RING_ALLOC_SIZE(jme->rx_ring_size), |
| 734 | rxring->alloc, |
| 735 | rxring->dmaalloc); |
| 736 | rxring->alloc = NULL; |
| 737 | rxring->desc = NULL; |
| 738 | rxring->dmaalloc = 0; |
| 739 | rxring->dma = 0; |
Guo-Fu Tseng | 47bd10d | 2009-07-06 04:39:46 +0000 | [diff] [blame] | 740 | rxring->bufinf = NULL; |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 741 | } |
| 742 | rxring->next_to_use = 0; |
| 743 | atomic_set(&rxring->next_to_clean, 0); |
| 744 | } |
| 745 | |
| 746 | static int |
| 747 | jme_setup_rx_resources(struct jme_adapter *jme) |
| 748 | { |
| 749 | int i; |
| 750 | struct jme_ring *rxring = &(jme->rxring[0]); |
| 751 | |
| 752 | rxring->alloc = dma_alloc_coherent(&(jme->pdev->dev), |
| 753 | RX_RING_ALLOC_SIZE(jme->rx_ring_size), |
| 754 | &(rxring->dmaalloc), |
| 755 | GFP_ATOMIC); |
Guo-Fu Tseng | 47bd10d | 2009-07-06 04:39:46 +0000 | [diff] [blame] | 756 | if (!rxring->alloc) |
| 757 | goto err_set_null; |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 758 | |
| 759 | /* |
| 760 | * 16 Bytes align |
| 761 | */ |
| 762 | rxring->desc = (void *)ALIGN((unsigned long)(rxring->alloc), |
| 763 | RING_DESC_ALIGN); |
| 764 | rxring->dma = ALIGN(rxring->dmaalloc, RING_DESC_ALIGN); |
| 765 | rxring->next_to_use = 0; |
| 766 | atomic_set(&rxring->next_to_clean, 0); |
| 767 | |
Guo-Fu Tseng | 47bd10d | 2009-07-06 04:39:46 +0000 | [diff] [blame] | 768 | rxring->bufinf = kmalloc(sizeof(struct jme_buffer_info) * |
| 769 | jme->rx_ring_size, GFP_ATOMIC); |
| 770 | if (unlikely(!(rxring->bufinf))) |
| 771 | goto err_free_rxring; |
| 772 | |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 773 | /* |
| 774 | * Initiallize Receive Descriptors |
| 775 | */ |
Guo-Fu Tseng | 47bd10d | 2009-07-06 04:39:46 +0000 | [diff] [blame] | 776 | memset(rxring->bufinf, 0, |
| 777 | sizeof(struct jme_buffer_info) * jme->rx_ring_size); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 778 | for (i = 0 ; i < jme->rx_ring_size ; ++i) { |
| 779 | if (unlikely(jme_make_new_rx_buf(jme, i))) { |
| 780 | jme_free_rx_resources(jme); |
| 781 | return -ENOMEM; |
| 782 | } |
| 783 | |
| 784 | jme_set_clean_rxdesc(jme, i); |
| 785 | } |
| 786 | |
| 787 | return 0; |
Guo-Fu Tseng | 47bd10d | 2009-07-06 04:39:46 +0000 | [diff] [blame] | 788 | |
| 789 | err_free_rxring: |
| 790 | dma_free_coherent(&(jme->pdev->dev), |
| 791 | RX_RING_ALLOC_SIZE(jme->rx_ring_size), |
| 792 | rxring->alloc, |
| 793 | rxring->dmaalloc); |
| 794 | err_set_null: |
| 795 | rxring->desc = NULL; |
| 796 | rxring->dmaalloc = 0; |
| 797 | rxring->dma = 0; |
| 798 | rxring->bufinf = NULL; |
| 799 | |
| 800 | return -ENOMEM; |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 801 | } |
| 802 | |
| 803 | static inline void |
| 804 | jme_enable_rx_engine(struct jme_adapter *jme) |
| 805 | { |
| 806 | /* |
| 807 | * Select Queue 0 |
| 808 | */ |
| 809 | jwrite32(jme, JME_RXCS, jme->reg_rxcs | |
| 810 | RXCS_QUEUESEL_Q0); |
| 811 | wmb(); |
| 812 | |
| 813 | /* |
| 814 | * Setup RX DMA Bass Address |
| 815 | */ |
Guo-Fu Tseng | eacf69a | 2009-07-06 04:36:30 +0000 | [diff] [blame] | 816 | jwrite32(jme, JME_RXDBA_LO, (__u64)(jme->rxring[0].dma) & 0xFFFFFFFFUL); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 817 | jwrite32(jme, JME_RXDBA_HI, (__u64)(jme->rxring[0].dma) >> 32); |
Guo-Fu Tseng | eacf69a | 2009-07-06 04:36:30 +0000 | [diff] [blame] | 818 | jwrite32(jme, JME_RXNDA, (__u64)(jme->rxring[0].dma) & 0xFFFFFFFFUL); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 819 | |
| 820 | /* |
| 821 | * Setup RX Descriptor Count |
| 822 | */ |
| 823 | jwrite32(jme, JME_RXQDC, jme->rx_ring_size); |
| 824 | |
| 825 | /* |
| 826 | * Setup Unicast Filter |
| 827 | */ |
| 828 | jme_set_multi(jme->dev); |
| 829 | |
| 830 | /* |
| 831 | * Enable RX Engine |
| 832 | */ |
| 833 | wmb(); |
| 834 | jwrite32(jme, JME_RXCS, jme->reg_rxcs | |
| 835 | RXCS_QUEUESEL_Q0 | |
| 836 | RXCS_ENABLE | |
| 837 | RXCS_QST); |
| 838 | } |
| 839 | |
| 840 | static inline void |
| 841 | jme_restart_rx_engine(struct jme_adapter *jme) |
| 842 | { |
| 843 | /* |
| 844 | * Start RX Engine |
| 845 | */ |
| 846 | jwrite32(jme, JME_RXCS, jme->reg_rxcs | |
| 847 | RXCS_QUEUESEL_Q0 | |
| 848 | RXCS_ENABLE | |
| 849 | RXCS_QST); |
| 850 | } |
| 851 | |
| 852 | static inline void |
| 853 | jme_disable_rx_engine(struct jme_adapter *jme) |
| 854 | { |
| 855 | int i; |
| 856 | u32 val; |
| 857 | |
| 858 | /* |
| 859 | * Disable RX Engine |
| 860 | */ |
| 861 | jwrite32(jme, JME_RXCS, jme->reg_rxcs); |
| 862 | wmb(); |
| 863 | |
| 864 | val = jread32(jme, JME_RXCS); |
| 865 | for (i = JME_RX_DISABLE_TIMEOUT ; (val & RXCS_ENABLE) && i > 0 ; --i) { |
| 866 | mdelay(1); |
| 867 | val = jread32(jme, JME_RXCS); |
| 868 | rmb(); |
| 869 | } |
| 870 | |
| 871 | if (!i) |
Joe Perches | 49d70c4 | 2010-09-04 22:21:05 +0000 | [diff] [blame] | 872 | pr_err("Disable RX engine timeout\n"); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 873 | |
| 874 | } |
| 875 | |
| 876 | static int |
| 877 | jme_rxsum_ok(struct jme_adapter *jme, u16 flags) |
| 878 | { |
| 879 | if (!(flags & (RXWBFLAG_TCPON | RXWBFLAG_UDPON | RXWBFLAG_IPV4))) |
| 880 | return false; |
| 881 | |
Guo-Fu Tseng | ce7d70a | 2009-07-06 04:41:22 +0000 | [diff] [blame] | 882 | if (unlikely((flags & (RXWBFLAG_MF | RXWBFLAG_TCPON | RXWBFLAG_TCPCS)) |
| 883 | == RXWBFLAG_TCPON)) { |
| 884 | if (flags & RXWBFLAG_IPV4) |
Joe Perches | f8502ce | 2010-02-09 11:49:51 +0000 | [diff] [blame] | 885 | netif_err(jme, rx_err, jme->dev, "TCP Checksum error\n"); |
Guo-Fu Tseng | ce7d70a | 2009-07-06 04:41:22 +0000 | [diff] [blame] | 886 | return false; |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 887 | } |
| 888 | |
Guo-Fu Tseng | ce7d70a | 2009-07-06 04:41:22 +0000 | [diff] [blame] | 889 | if (unlikely((flags & (RXWBFLAG_MF | RXWBFLAG_UDPON | RXWBFLAG_UDPCS)) |
| 890 | == RXWBFLAG_UDPON)) { |
| 891 | if (flags & RXWBFLAG_IPV4) |
Joe Perches | 49d70c4 | 2010-09-04 22:21:05 +0000 | [diff] [blame] | 892 | netif_err(jme, rx_err, jme->dev, "UDP Checksum error\n"); |
Guo-Fu Tseng | ce7d70a | 2009-07-06 04:41:22 +0000 | [diff] [blame] | 893 | return false; |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 894 | } |
| 895 | |
Guo-Fu Tseng | ce7d70a | 2009-07-06 04:41:22 +0000 | [diff] [blame] | 896 | if (unlikely((flags & (RXWBFLAG_IPV4 | RXWBFLAG_IPCS)) |
| 897 | == RXWBFLAG_IPV4)) { |
Joe Perches | 49d70c4 | 2010-09-04 22:21:05 +0000 | [diff] [blame] | 898 | netif_err(jme, rx_err, jme->dev, "IPv4 Checksum error\n"); |
Guo-Fu Tseng | ce7d70a | 2009-07-06 04:41:22 +0000 | [diff] [blame] | 899 | return false; |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 900 | } |
| 901 | |
| 902 | return true; |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 903 | } |
| 904 | |
| 905 | static void |
| 906 | jme_alloc_and_feed_skb(struct jme_adapter *jme, int idx) |
| 907 | { |
| 908 | struct jme_ring *rxring = &(jme->rxring[0]); |
| 909 | struct rxdesc *rxdesc = rxring->desc; |
| 910 | struct jme_buffer_info *rxbi = rxring->bufinf; |
| 911 | struct sk_buff *skb; |
| 912 | int framesize; |
| 913 | |
| 914 | rxdesc += idx; |
| 915 | rxbi += idx; |
| 916 | |
| 917 | skb = rxbi->skb; |
| 918 | pci_dma_sync_single_for_cpu(jme->pdev, |
| 919 | rxbi->mapping, |
| 920 | rxbi->len, |
| 921 | PCI_DMA_FROMDEVICE); |
| 922 | |
| 923 | if (unlikely(jme_make_new_rx_buf(jme, idx))) { |
| 924 | pci_dma_sync_single_for_device(jme->pdev, |
| 925 | rxbi->mapping, |
| 926 | rxbi->len, |
| 927 | PCI_DMA_FROMDEVICE); |
| 928 | |
| 929 | ++(NET_STAT(jme).rx_dropped); |
| 930 | } else { |
| 931 | framesize = le16_to_cpu(rxdesc->descwb.framesize) |
| 932 | - RX_PREPAD_SIZE; |
| 933 | |
| 934 | skb_reserve(skb, RX_PREPAD_SIZE); |
| 935 | skb_put(skb, framesize); |
| 936 | skb->protocol = eth_type_trans(skb, jme->dev); |
| 937 | |
Harvey Harrison | 31c221c | 2008-11-19 15:50:59 -0800 | [diff] [blame] | 938 | if (jme_rxsum_ok(jme, le16_to_cpu(rxdesc->descwb.flags))) |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 939 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
| 940 | else |
Eric Dumazet | bc8acf2 | 2010-09-02 13:07:41 -0700 | [diff] [blame] | 941 | skb_checksum_none_assert(skb); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 942 | |
Harvey Harrison | 31c221c | 2008-11-19 15:50:59 -0800 | [diff] [blame] | 943 | if (rxdesc->descwb.flags & cpu_to_le16(RXWBFLAG_TAGON)) { |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 944 | if (jme->vlgrp) { |
| 945 | jme->jme_vlan_rx(skb, jme->vlgrp, |
Harvey Harrison | 31c221c | 2008-11-19 15:50:59 -0800 | [diff] [blame] | 946 | le16_to_cpu(rxdesc->descwb.vlan)); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 947 | NET_STAT(jme).rx_bytes += 4; |
Guo-Fu Tseng | 17da69b | 2010-03-17 00:09:29 +0000 | [diff] [blame] | 948 | } else { |
| 949 | dev_kfree_skb(skb); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 950 | } |
| 951 | } else { |
| 952 | jme->jme_rx(skb); |
| 953 | } |
| 954 | |
Harvey Harrison | 31c221c | 2008-11-19 15:50:59 -0800 | [diff] [blame] | 955 | if ((rxdesc->descwb.flags & cpu_to_le16(RXWBFLAG_DEST)) == |
| 956 | cpu_to_le16(RXWBFLAG_DEST_MUL)) |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 957 | ++(NET_STAT(jme).multicast); |
| 958 | |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 959 | NET_STAT(jme).rx_bytes += framesize; |
| 960 | ++(NET_STAT(jme).rx_packets); |
| 961 | } |
| 962 | |
| 963 | jme_set_clean_rxdesc(jme, idx); |
| 964 | |
| 965 | } |
| 966 | |
| 967 | static int |
| 968 | jme_process_receive(struct jme_adapter *jme, int limit) |
| 969 | { |
| 970 | struct jme_ring *rxring = &(jme->rxring[0]); |
| 971 | struct rxdesc *rxdesc = rxring->desc; |
| 972 | int i, j, ccnt, desccnt, mask = jme->rx_ring_mask; |
| 973 | |
| 974 | if (unlikely(!atomic_dec_and_test(&jme->rx_cleaning))) |
| 975 | goto out_inc; |
| 976 | |
| 977 | if (unlikely(atomic_read(&jme->link_changing) != 1)) |
| 978 | goto out_inc; |
| 979 | |
| 980 | if (unlikely(!netif_carrier_ok(jme->dev))) |
| 981 | goto out_inc; |
| 982 | |
| 983 | i = atomic_read(&rxring->next_to_clean); |
Roel Kluin | 858b9ce | 2009-03-04 00:11:42 -0800 | [diff] [blame] | 984 | while (limit > 0) { |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 985 | rxdesc = rxring->desc; |
| 986 | rxdesc += i; |
| 987 | |
Harvey Harrison | 31c221c | 2008-11-19 15:50:59 -0800 | [diff] [blame] | 988 | if ((rxdesc->descwb.flags & cpu_to_le16(RXWBFLAG_OWN)) || |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 989 | !(rxdesc->descwb.desccnt & RXWBDCNT_WBCPL)) |
| 990 | goto out; |
Roel Kluin | 858b9ce | 2009-03-04 00:11:42 -0800 | [diff] [blame] | 991 | --limit; |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 992 | |
Guo-Fu Tseng | ea192aa | 2010-10-18 14:10:42 +0000 | [diff] [blame] | 993 | rmb(); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 994 | desccnt = rxdesc->descwb.desccnt & RXWBDCNT_DCNT; |
| 995 | |
| 996 | if (unlikely(desccnt > 1 || |
| 997 | rxdesc->descwb.errstat & RXWBERR_ALLERR)) { |
| 998 | |
| 999 | if (rxdesc->descwb.errstat & RXWBERR_CRCERR) |
| 1000 | ++(NET_STAT(jme).rx_crc_errors); |
| 1001 | else if (rxdesc->descwb.errstat & RXWBERR_OVERUN) |
| 1002 | ++(NET_STAT(jme).rx_fifo_errors); |
| 1003 | else |
| 1004 | ++(NET_STAT(jme).rx_errors); |
| 1005 | |
| 1006 | if (desccnt > 1) |
| 1007 | limit -= desccnt - 1; |
| 1008 | |
| 1009 | for (j = i, ccnt = desccnt ; ccnt-- ; ) { |
| 1010 | jme_set_clean_rxdesc(jme, j); |
| 1011 | j = (j + 1) & (mask); |
| 1012 | } |
| 1013 | |
| 1014 | } else { |
| 1015 | jme_alloc_and_feed_skb(jme, i); |
| 1016 | } |
| 1017 | |
| 1018 | i = (i + desccnt) & (mask); |
| 1019 | } |
| 1020 | |
| 1021 | out: |
| 1022 | atomic_set(&rxring->next_to_clean, i); |
| 1023 | |
| 1024 | out_inc: |
| 1025 | atomic_inc(&jme->rx_cleaning); |
| 1026 | |
| 1027 | return limit > 0 ? limit : 0; |
| 1028 | |
| 1029 | } |
| 1030 | |
| 1031 | static void |
| 1032 | jme_attempt_pcc(struct dynpcc_info *dpi, int atmp) |
| 1033 | { |
| 1034 | if (likely(atmp == dpi->cur)) { |
| 1035 | dpi->cnt = 0; |
| 1036 | return; |
| 1037 | } |
| 1038 | |
| 1039 | if (dpi->attempt == atmp) { |
| 1040 | ++(dpi->cnt); |
| 1041 | } else { |
| 1042 | dpi->attempt = atmp; |
| 1043 | dpi->cnt = 0; |
| 1044 | } |
| 1045 | |
| 1046 | } |
| 1047 | |
| 1048 | static void |
| 1049 | jme_dynamic_pcc(struct jme_adapter *jme) |
| 1050 | { |
| 1051 | register struct dynpcc_info *dpi = &(jme->dpi); |
| 1052 | |
| 1053 | if ((NET_STAT(jme).rx_bytes - dpi->last_bytes) > PCC_P3_THRESHOLD) |
| 1054 | jme_attempt_pcc(dpi, PCC_P3); |
Joe Perches | 8e95a20 | 2009-12-03 07:58:21 +0000 | [diff] [blame] | 1055 | else if ((NET_STAT(jme).rx_packets - dpi->last_pkts) > PCC_P2_THRESHOLD || |
| 1056 | dpi->intr_cnt > PCC_INTR_THRESHOLD) |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 1057 | jme_attempt_pcc(dpi, PCC_P2); |
| 1058 | else |
| 1059 | jme_attempt_pcc(dpi, PCC_P1); |
| 1060 | |
| 1061 | if (unlikely(dpi->attempt != dpi->cur && dpi->cnt > 5)) { |
| 1062 | if (dpi->attempt < dpi->cur) |
| 1063 | tasklet_schedule(&jme->rxclean_task); |
| 1064 | jme_set_rx_pcc(jme, dpi->attempt); |
| 1065 | dpi->cur = dpi->attempt; |
| 1066 | dpi->cnt = 0; |
| 1067 | } |
| 1068 | } |
| 1069 | |
| 1070 | static void |
| 1071 | jme_start_pcc_timer(struct jme_adapter *jme) |
| 1072 | { |
| 1073 | struct dynpcc_info *dpi = &(jme->dpi); |
| 1074 | dpi->last_bytes = NET_STAT(jme).rx_bytes; |
| 1075 | dpi->last_pkts = NET_STAT(jme).rx_packets; |
| 1076 | dpi->intr_cnt = 0; |
| 1077 | jwrite32(jme, JME_TMCSR, |
| 1078 | TMCSR_EN | ((0xFFFFFF - PCC_INTERVAL_US) & TMCSR_CNT)); |
| 1079 | } |
| 1080 | |
| 1081 | static inline void |
| 1082 | jme_stop_pcc_timer(struct jme_adapter *jme) |
| 1083 | { |
| 1084 | jwrite32(jme, JME_TMCSR, 0); |
| 1085 | } |
| 1086 | |
| 1087 | static void |
| 1088 | jme_shutdown_nic(struct jme_adapter *jme) |
| 1089 | { |
| 1090 | u32 phylink; |
| 1091 | |
| 1092 | phylink = jme_linkstat_from_phy(jme); |
| 1093 | |
| 1094 | if (!(phylink & PHY_LINK_UP)) { |
| 1095 | /* |
| 1096 | * Disable all interrupt before issue timer |
| 1097 | */ |
| 1098 | jme_stop_irq(jme); |
| 1099 | jwrite32(jme, JME_TIMER2, TMCSR_EN | 0xFFFFFE); |
| 1100 | } |
| 1101 | } |
| 1102 | |
| 1103 | static void |
| 1104 | jme_pcc_tasklet(unsigned long arg) |
| 1105 | { |
| 1106 | struct jme_adapter *jme = (struct jme_adapter *)arg; |
| 1107 | struct net_device *netdev = jme->dev; |
| 1108 | |
| 1109 | if (unlikely(test_bit(JME_FLAG_SHUTDOWN, &jme->flags))) { |
| 1110 | jme_shutdown_nic(jme); |
| 1111 | return; |
| 1112 | } |
| 1113 | |
| 1114 | if (unlikely(!netif_carrier_ok(netdev) || |
| 1115 | (atomic_read(&jme->link_changing) != 1) |
| 1116 | )) { |
| 1117 | jme_stop_pcc_timer(jme); |
| 1118 | return; |
| 1119 | } |
| 1120 | |
| 1121 | if (!(test_bit(JME_FLAG_POLL, &jme->flags))) |
| 1122 | jme_dynamic_pcc(jme); |
| 1123 | |
| 1124 | jme_start_pcc_timer(jme); |
| 1125 | } |
| 1126 | |
| 1127 | static inline void |
| 1128 | jme_polling_mode(struct jme_adapter *jme) |
| 1129 | { |
| 1130 | jme_set_rx_pcc(jme, PCC_OFF); |
| 1131 | } |
| 1132 | |
| 1133 | static inline void |
| 1134 | jme_interrupt_mode(struct jme_adapter *jme) |
| 1135 | { |
| 1136 | jme_set_rx_pcc(jme, PCC_P1); |
| 1137 | } |
| 1138 | |
| 1139 | static inline int |
| 1140 | jme_pseudo_hotplug_enabled(struct jme_adapter *jme) |
| 1141 | { |
| 1142 | u32 apmc; |
| 1143 | apmc = jread32(jme, JME_APMC); |
| 1144 | return apmc & JME_APMC_PSEUDO_HP_EN; |
| 1145 | } |
| 1146 | |
| 1147 | static void |
| 1148 | jme_start_shutdown_timer(struct jme_adapter *jme) |
| 1149 | { |
| 1150 | u32 apmc; |
| 1151 | |
| 1152 | apmc = jread32(jme, JME_APMC) | JME_APMC_PCIE_SD_EN; |
| 1153 | apmc &= ~JME_APMC_EPIEN_CTRL; |
| 1154 | if (!no_extplug) { |
| 1155 | jwrite32f(jme, JME_APMC, apmc | JME_APMC_EPIEN_CTRL_EN); |
| 1156 | wmb(); |
| 1157 | } |
| 1158 | jwrite32f(jme, JME_APMC, apmc); |
| 1159 | |
| 1160 | jwrite32f(jme, JME_TIMER2, 0); |
| 1161 | set_bit(JME_FLAG_SHUTDOWN, &jme->flags); |
| 1162 | jwrite32(jme, JME_TMCSR, |
| 1163 | TMCSR_EN | ((0xFFFFFF - APMC_PHP_SHUTDOWN_DELAY) & TMCSR_CNT)); |
| 1164 | } |
| 1165 | |
| 1166 | static void |
| 1167 | jme_stop_shutdown_timer(struct jme_adapter *jme) |
| 1168 | { |
| 1169 | u32 apmc; |
| 1170 | |
| 1171 | jwrite32f(jme, JME_TMCSR, 0); |
| 1172 | jwrite32f(jme, JME_TIMER2, 0); |
| 1173 | clear_bit(JME_FLAG_SHUTDOWN, &jme->flags); |
| 1174 | |
| 1175 | apmc = jread32(jme, JME_APMC); |
| 1176 | apmc &= ~(JME_APMC_PCIE_SD_EN | JME_APMC_EPIEN_CTRL); |
| 1177 | jwrite32f(jme, JME_APMC, apmc | JME_APMC_EPIEN_CTRL_DIS); |
| 1178 | wmb(); |
| 1179 | jwrite32f(jme, JME_APMC, apmc); |
| 1180 | } |
| 1181 | |
| 1182 | static void |
| 1183 | jme_link_change_tasklet(unsigned long arg) |
| 1184 | { |
| 1185 | struct jme_adapter *jme = (struct jme_adapter *)arg; |
| 1186 | struct net_device *netdev = jme->dev; |
| 1187 | int rc; |
| 1188 | |
| 1189 | while (!atomic_dec_and_test(&jme->link_changing)) { |
| 1190 | atomic_inc(&jme->link_changing); |
Joe Perches | 49d70c4 | 2010-09-04 22:21:05 +0000 | [diff] [blame] | 1191 | netif_info(jme, intr, jme->dev, "Get link change lock failed\n"); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 1192 | while (atomic_read(&jme->link_changing) != 1) |
Joe Perches | 49d70c4 | 2010-09-04 22:21:05 +0000 | [diff] [blame] | 1193 | netif_info(jme, intr, jme->dev, "Waiting link change lock\n"); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 1194 | } |
| 1195 | |
| 1196 | if (jme_check_link(netdev, 1) && jme->old_mtu == netdev->mtu) |
| 1197 | goto out; |
| 1198 | |
| 1199 | jme->old_mtu = netdev->mtu; |
| 1200 | netif_stop_queue(netdev); |
| 1201 | if (jme_pseudo_hotplug_enabled(jme)) |
| 1202 | jme_stop_shutdown_timer(jme); |
| 1203 | |
| 1204 | jme_stop_pcc_timer(jme); |
| 1205 | tasklet_disable(&jme->txclean_task); |
| 1206 | tasklet_disable(&jme->rxclean_task); |
| 1207 | tasklet_disable(&jme->rxempty_task); |
| 1208 | |
| 1209 | if (netif_carrier_ok(netdev)) { |
| 1210 | jme_reset_ghc_speed(jme); |
| 1211 | jme_disable_rx_engine(jme); |
| 1212 | jme_disable_tx_engine(jme); |
| 1213 | jme_reset_mac_processor(jme); |
| 1214 | jme_free_rx_resources(jme); |
| 1215 | jme_free_tx_resources(jme); |
| 1216 | |
| 1217 | if (test_bit(JME_FLAG_POLL, &jme->flags)) |
| 1218 | jme_polling_mode(jme); |
| 1219 | |
| 1220 | netif_carrier_off(netdev); |
| 1221 | } |
| 1222 | |
| 1223 | jme_check_link(netdev, 0); |
| 1224 | if (netif_carrier_ok(netdev)) { |
| 1225 | rc = jme_setup_rx_resources(jme); |
| 1226 | if (rc) { |
Joe Perches | 49d70c4 | 2010-09-04 22:21:05 +0000 | [diff] [blame] | 1227 | pr_err("Allocating resources for RX error, Device STOPPED!\n"); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 1228 | goto out_enable_tasklet; |
| 1229 | } |
| 1230 | |
| 1231 | rc = jme_setup_tx_resources(jme); |
| 1232 | if (rc) { |
Joe Perches | 49d70c4 | 2010-09-04 22:21:05 +0000 | [diff] [blame] | 1233 | pr_err("Allocating resources for TX error, Device STOPPED!\n"); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 1234 | goto err_out_free_rx_resources; |
| 1235 | } |
| 1236 | |
| 1237 | jme_enable_rx_engine(jme); |
| 1238 | jme_enable_tx_engine(jme); |
| 1239 | |
| 1240 | netif_start_queue(netdev); |
| 1241 | |
| 1242 | if (test_bit(JME_FLAG_POLL, &jme->flags)) |
| 1243 | jme_interrupt_mode(jme); |
| 1244 | |
| 1245 | jme_start_pcc_timer(jme); |
| 1246 | } else if (jme_pseudo_hotplug_enabled(jme)) { |
| 1247 | jme_start_shutdown_timer(jme); |
| 1248 | } |
| 1249 | |
| 1250 | goto out_enable_tasklet; |
| 1251 | |
| 1252 | err_out_free_rx_resources: |
| 1253 | jme_free_rx_resources(jme); |
| 1254 | out_enable_tasklet: |
| 1255 | tasklet_enable(&jme->txclean_task); |
| 1256 | tasklet_hi_enable(&jme->rxclean_task); |
| 1257 | tasklet_hi_enable(&jme->rxempty_task); |
| 1258 | out: |
| 1259 | atomic_inc(&jme->link_changing); |
| 1260 | } |
| 1261 | |
| 1262 | static void |
| 1263 | jme_rx_clean_tasklet(unsigned long arg) |
| 1264 | { |
| 1265 | struct jme_adapter *jme = (struct jme_adapter *)arg; |
| 1266 | struct dynpcc_info *dpi = &(jme->dpi); |
| 1267 | |
| 1268 | jme_process_receive(jme, jme->rx_ring_size); |
| 1269 | ++(dpi->intr_cnt); |
| 1270 | |
| 1271 | } |
| 1272 | |
| 1273 | static int |
| 1274 | jme_poll(JME_NAPI_HOLDER(holder), JME_NAPI_WEIGHT(budget)) |
| 1275 | { |
| 1276 | struct jme_adapter *jme = jme_napi_priv(holder); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 1277 | int rest; |
| 1278 | |
| 1279 | rest = jme_process_receive(jme, JME_NAPI_WEIGHT_VAL(budget)); |
| 1280 | |
| 1281 | while (atomic_read(&jme->rx_empty) > 0) { |
| 1282 | atomic_dec(&jme->rx_empty); |
| 1283 | ++(NET_STAT(jme).rx_dropped); |
| 1284 | jme_restart_rx_engine(jme); |
| 1285 | } |
| 1286 | atomic_inc(&jme->rx_empty); |
| 1287 | |
| 1288 | if (rest) { |
| 1289 | JME_RX_COMPLETE(netdev, holder); |
| 1290 | jme_interrupt_mode(jme); |
| 1291 | } |
| 1292 | |
| 1293 | JME_NAPI_WEIGHT_SET(budget, rest); |
| 1294 | return JME_NAPI_WEIGHT_VAL(budget) - rest; |
| 1295 | } |
| 1296 | |
| 1297 | static void |
| 1298 | jme_rx_empty_tasklet(unsigned long arg) |
| 1299 | { |
| 1300 | struct jme_adapter *jme = (struct jme_adapter *)arg; |
| 1301 | |
| 1302 | if (unlikely(atomic_read(&jme->link_changing) != 1)) |
| 1303 | return; |
| 1304 | |
| 1305 | if (unlikely(!netif_carrier_ok(jme->dev))) |
| 1306 | return; |
| 1307 | |
Joe Perches | f8502ce | 2010-02-09 11:49:51 +0000 | [diff] [blame] | 1308 | netif_info(jme, rx_status, jme->dev, "RX Queue Full!\n"); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 1309 | |
| 1310 | jme_rx_clean_tasklet(arg); |
| 1311 | |
| 1312 | while (atomic_read(&jme->rx_empty) > 0) { |
| 1313 | atomic_dec(&jme->rx_empty); |
| 1314 | ++(NET_STAT(jme).rx_dropped); |
| 1315 | jme_restart_rx_engine(jme); |
| 1316 | } |
| 1317 | atomic_inc(&jme->rx_empty); |
| 1318 | } |
| 1319 | |
| 1320 | static void |
| 1321 | jme_wake_queue_if_stopped(struct jme_adapter *jme) |
| 1322 | { |
Guo-Fu Tseng | eacf69a | 2009-07-06 04:36:30 +0000 | [diff] [blame] | 1323 | struct jme_ring *txring = &(jme->txring[0]); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 1324 | |
| 1325 | smp_wmb(); |
| 1326 | if (unlikely(netif_queue_stopped(jme->dev) && |
| 1327 | atomic_read(&txring->nr_free) >= (jme->tx_wake_threshold))) { |
Joe Perches | 49d70c4 | 2010-09-04 22:21:05 +0000 | [diff] [blame] | 1328 | netif_info(jme, tx_done, jme->dev, "TX Queue Waked\n"); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 1329 | netif_wake_queue(jme->dev); |
| 1330 | } |
| 1331 | |
| 1332 | } |
| 1333 | |
| 1334 | static void |
| 1335 | jme_tx_clean_tasklet(unsigned long arg) |
| 1336 | { |
| 1337 | struct jme_adapter *jme = (struct jme_adapter *)arg; |
| 1338 | struct jme_ring *txring = &(jme->txring[0]); |
| 1339 | struct txdesc *txdesc = txring->desc; |
| 1340 | struct jme_buffer_info *txbi = txring->bufinf, *ctxbi, *ttxbi; |
| 1341 | int i, j, cnt = 0, max, err, mask; |
| 1342 | |
Joe Perches | 49d70c4 | 2010-09-04 22:21:05 +0000 | [diff] [blame] | 1343 | tx_dbg(jme, "Into txclean\n"); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 1344 | |
| 1345 | if (unlikely(!atomic_dec_and_test(&jme->tx_cleaning))) |
| 1346 | goto out; |
| 1347 | |
| 1348 | if (unlikely(atomic_read(&jme->link_changing) != 1)) |
| 1349 | goto out; |
| 1350 | |
| 1351 | if (unlikely(!netif_carrier_ok(jme->dev))) |
| 1352 | goto out; |
| 1353 | |
| 1354 | max = jme->tx_ring_size - atomic_read(&txring->nr_free); |
| 1355 | mask = jme->tx_ring_mask; |
| 1356 | |
| 1357 | for (i = atomic_read(&txring->next_to_clean) ; cnt < max ; ) { |
| 1358 | |
| 1359 | ctxbi = txbi + i; |
| 1360 | |
| 1361 | if (likely(ctxbi->skb && |
| 1362 | !(txdesc[i].descwb.flags & TXWBFLAG_OWN))) { |
| 1363 | |
| 1364 | tx_dbg(jme, "txclean: %d+%d@%lu\n", |
Joe Perches | 49d70c4 | 2010-09-04 22:21:05 +0000 | [diff] [blame] | 1365 | i, ctxbi->nr_desc, jiffies); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 1366 | |
| 1367 | err = txdesc[i].descwb.flags & TXWBFLAG_ALLERR; |
| 1368 | |
| 1369 | for (j = 1 ; j < ctxbi->nr_desc ; ++j) { |
| 1370 | ttxbi = txbi + ((i + j) & (mask)); |
| 1371 | txdesc[(i + j) & (mask)].dw[0] = 0; |
| 1372 | |
| 1373 | pci_unmap_page(jme->pdev, |
| 1374 | ttxbi->mapping, |
| 1375 | ttxbi->len, |
| 1376 | PCI_DMA_TODEVICE); |
| 1377 | |
| 1378 | ttxbi->mapping = 0; |
| 1379 | ttxbi->len = 0; |
| 1380 | } |
| 1381 | |
| 1382 | dev_kfree_skb(ctxbi->skb); |
| 1383 | |
| 1384 | cnt += ctxbi->nr_desc; |
| 1385 | |
| 1386 | if (unlikely(err)) { |
| 1387 | ++(NET_STAT(jme).tx_carrier_errors); |
| 1388 | } else { |
| 1389 | ++(NET_STAT(jme).tx_packets); |
| 1390 | NET_STAT(jme).tx_bytes += ctxbi->len; |
| 1391 | } |
| 1392 | |
| 1393 | ctxbi->skb = NULL; |
| 1394 | ctxbi->len = 0; |
| 1395 | ctxbi->start_xmit = 0; |
| 1396 | |
| 1397 | } else { |
| 1398 | break; |
| 1399 | } |
| 1400 | |
| 1401 | i = (i + ctxbi->nr_desc) & mask; |
| 1402 | |
| 1403 | ctxbi->nr_desc = 0; |
| 1404 | } |
| 1405 | |
Joe Perches | 49d70c4 | 2010-09-04 22:21:05 +0000 | [diff] [blame] | 1406 | tx_dbg(jme, "txclean: done %d@%lu\n", i, jiffies); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 1407 | atomic_set(&txring->next_to_clean, i); |
| 1408 | atomic_add(cnt, &txring->nr_free); |
| 1409 | |
| 1410 | jme_wake_queue_if_stopped(jme); |
| 1411 | |
| 1412 | out: |
| 1413 | atomic_inc(&jme->tx_cleaning); |
| 1414 | } |
| 1415 | |
| 1416 | static void |
| 1417 | jme_intr_msi(struct jme_adapter *jme, u32 intrstat) |
| 1418 | { |
| 1419 | /* |
| 1420 | * Disable interrupt |
| 1421 | */ |
| 1422 | jwrite32f(jme, JME_IENC, INTR_ENABLE); |
| 1423 | |
| 1424 | if (intrstat & (INTR_LINKCH | INTR_SWINTR)) { |
| 1425 | /* |
| 1426 | * Link change event is critical |
| 1427 | * all other events are ignored |
| 1428 | */ |
| 1429 | jwrite32(jme, JME_IEVE, intrstat); |
| 1430 | tasklet_schedule(&jme->linkch_task); |
| 1431 | goto out_reenable; |
| 1432 | } |
| 1433 | |
| 1434 | if (intrstat & INTR_TMINTR) { |
| 1435 | jwrite32(jme, JME_IEVE, INTR_TMINTR); |
| 1436 | tasklet_schedule(&jme->pcc_task); |
| 1437 | } |
| 1438 | |
| 1439 | if (intrstat & (INTR_PCCTXTO | INTR_PCCTX)) { |
| 1440 | jwrite32(jme, JME_IEVE, INTR_PCCTXTO | INTR_PCCTX | INTR_TX0); |
| 1441 | tasklet_schedule(&jme->txclean_task); |
| 1442 | } |
| 1443 | |
| 1444 | if ((intrstat & (INTR_PCCRX0TO | INTR_PCCRX0 | INTR_RX0EMP))) { |
| 1445 | jwrite32(jme, JME_IEVE, (intrstat & (INTR_PCCRX0TO | |
| 1446 | INTR_PCCRX0 | |
| 1447 | INTR_RX0EMP)) | |
| 1448 | INTR_RX0); |
| 1449 | } |
| 1450 | |
| 1451 | if (test_bit(JME_FLAG_POLL, &jme->flags)) { |
| 1452 | if (intrstat & INTR_RX0EMP) |
| 1453 | atomic_inc(&jme->rx_empty); |
| 1454 | |
| 1455 | if ((intrstat & (INTR_PCCRX0TO | INTR_PCCRX0 | INTR_RX0EMP))) { |
| 1456 | if (likely(JME_RX_SCHEDULE_PREP(jme))) { |
| 1457 | jme_polling_mode(jme); |
| 1458 | JME_RX_SCHEDULE(jme); |
| 1459 | } |
| 1460 | } |
| 1461 | } else { |
| 1462 | if (intrstat & INTR_RX0EMP) { |
| 1463 | atomic_inc(&jme->rx_empty); |
| 1464 | tasklet_hi_schedule(&jme->rxempty_task); |
| 1465 | } else if (intrstat & (INTR_PCCRX0TO | INTR_PCCRX0)) { |
| 1466 | tasklet_hi_schedule(&jme->rxclean_task); |
| 1467 | } |
| 1468 | } |
| 1469 | |
| 1470 | out_reenable: |
| 1471 | /* |
| 1472 | * Re-enable interrupt |
| 1473 | */ |
| 1474 | jwrite32f(jme, JME_IENS, INTR_ENABLE); |
| 1475 | } |
| 1476 | |
| 1477 | static irqreturn_t |
| 1478 | jme_intr(int irq, void *dev_id) |
| 1479 | { |
| 1480 | struct net_device *netdev = dev_id; |
| 1481 | struct jme_adapter *jme = netdev_priv(netdev); |
| 1482 | u32 intrstat; |
| 1483 | |
| 1484 | intrstat = jread32(jme, JME_IEVE); |
| 1485 | |
| 1486 | /* |
| 1487 | * Check if it's really an interrupt for us |
| 1488 | */ |
akeemting | 576b522 | 2008-10-08 19:50:03 -0700 | [diff] [blame] | 1489 | if (unlikely((intrstat & INTR_ENABLE) == 0)) |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 1490 | return IRQ_NONE; |
| 1491 | |
| 1492 | /* |
| 1493 | * Check if the device still exist |
| 1494 | */ |
| 1495 | if (unlikely(intrstat == ~((typeof(intrstat))0))) |
| 1496 | return IRQ_NONE; |
| 1497 | |
| 1498 | jme_intr_msi(jme, intrstat); |
| 1499 | |
| 1500 | return IRQ_HANDLED; |
| 1501 | } |
| 1502 | |
| 1503 | static irqreturn_t |
| 1504 | jme_msi(int irq, void *dev_id) |
| 1505 | { |
| 1506 | struct net_device *netdev = dev_id; |
| 1507 | struct jme_adapter *jme = netdev_priv(netdev); |
| 1508 | u32 intrstat; |
| 1509 | |
Guo-Fu Tseng | d1dfa1d | 2009-07-06 04:40:38 +0000 | [diff] [blame] | 1510 | intrstat = jread32(jme, JME_IEVE); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 1511 | |
| 1512 | jme_intr_msi(jme, intrstat); |
| 1513 | |
| 1514 | return IRQ_HANDLED; |
| 1515 | } |
| 1516 | |
| 1517 | static void |
| 1518 | jme_reset_link(struct jme_adapter *jme) |
| 1519 | { |
| 1520 | jwrite32(jme, JME_TMCSR, TMCSR_SWIT); |
| 1521 | } |
| 1522 | |
| 1523 | static void |
| 1524 | jme_restart_an(struct jme_adapter *jme) |
| 1525 | { |
| 1526 | u32 bmcr; |
| 1527 | |
| 1528 | spin_lock_bh(&jme->phy_lock); |
| 1529 | bmcr = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_BMCR); |
| 1530 | bmcr |= (BMCR_ANENABLE | BMCR_ANRESTART); |
| 1531 | jme_mdio_write(jme->dev, jme->mii_if.phy_id, MII_BMCR, bmcr); |
| 1532 | spin_unlock_bh(&jme->phy_lock); |
| 1533 | } |
| 1534 | |
| 1535 | static int |
| 1536 | jme_request_irq(struct jme_adapter *jme) |
| 1537 | { |
| 1538 | int rc; |
| 1539 | struct net_device *netdev = jme->dev; |
| 1540 | irq_handler_t handler = jme_intr; |
| 1541 | int irq_flags = IRQF_SHARED; |
| 1542 | |
| 1543 | if (!pci_enable_msi(jme->pdev)) { |
| 1544 | set_bit(JME_FLAG_MSI, &jme->flags); |
| 1545 | handler = jme_msi; |
| 1546 | irq_flags = 0; |
| 1547 | } |
| 1548 | |
| 1549 | rc = request_irq(jme->pdev->irq, handler, irq_flags, netdev->name, |
| 1550 | netdev); |
| 1551 | if (rc) { |
Joe Perches | 49d70c4 | 2010-09-04 22:21:05 +0000 | [diff] [blame] | 1552 | netdev_err(netdev, |
| 1553 | "Unable to request %s interrupt (return: %d)\n", |
| 1554 | test_bit(JME_FLAG_MSI, &jme->flags) ? "MSI" : "INTx", |
| 1555 | rc); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 1556 | |
| 1557 | if (test_bit(JME_FLAG_MSI, &jme->flags)) { |
| 1558 | pci_disable_msi(jme->pdev); |
| 1559 | clear_bit(JME_FLAG_MSI, &jme->flags); |
| 1560 | } |
| 1561 | } else { |
| 1562 | netdev->irq = jme->pdev->irq; |
| 1563 | } |
| 1564 | |
| 1565 | return rc; |
| 1566 | } |
| 1567 | |
| 1568 | static void |
| 1569 | jme_free_irq(struct jme_adapter *jme) |
| 1570 | { |
| 1571 | free_irq(jme->pdev->irq, jme->dev); |
| 1572 | if (test_bit(JME_FLAG_MSI, &jme->flags)) { |
| 1573 | pci_disable_msi(jme->pdev); |
| 1574 | clear_bit(JME_FLAG_MSI, &jme->flags); |
| 1575 | jme->dev->irq = jme->pdev->irq; |
| 1576 | } |
| 1577 | } |
| 1578 | |
Guo-Fu Tseng | c8a8684 | 2010-10-18 14:10:40 +0000 | [diff] [blame] | 1579 | static inline void |
| 1580 | jme_phy_on(struct jme_adapter *jme) |
| 1581 | { |
| 1582 | u32 bmcr; |
| 1583 | |
| 1584 | bmcr = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_BMCR); |
| 1585 | bmcr &= ~BMCR_PDOWN; |
| 1586 | jme_mdio_write(jme->dev, jme->mii_if.phy_id, MII_BMCR, bmcr); |
| 1587 | } |
| 1588 | |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 1589 | static int |
| 1590 | jme_open(struct net_device *netdev) |
| 1591 | { |
| 1592 | struct jme_adapter *jme = netdev_priv(netdev); |
| 1593 | int rc; |
| 1594 | |
| 1595 | jme_clear_pm(jme); |
| 1596 | JME_NAPI_ENABLE(jme); |
| 1597 | |
Guo-Fu Tseng | 38ed0c2 | 2009-07-06 04:37:52 +0000 | [diff] [blame] | 1598 | tasklet_enable(&jme->linkch_task); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 1599 | tasklet_enable(&jme->txclean_task); |
| 1600 | tasklet_hi_enable(&jme->rxclean_task); |
| 1601 | tasklet_hi_enable(&jme->rxempty_task); |
| 1602 | |
| 1603 | rc = jme_request_irq(jme); |
| 1604 | if (rc) |
| 1605 | goto err_out; |
| 1606 | |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 1607 | jme_start_irq(jme); |
| 1608 | |
Guo-Fu Tseng | c8a8684 | 2010-10-18 14:10:40 +0000 | [diff] [blame] | 1609 | if (test_bit(JME_FLAG_SSET, &jme->flags)) { |
| 1610 | jme_phy_on(jme); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 1611 | jme_set_settings(netdev, &jme->old_ecmd); |
Guo-Fu Tseng | c8a8684 | 2010-10-18 14:10:40 +0000 | [diff] [blame] | 1612 | } else { |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 1613 | jme_reset_phy_processor(jme); |
Guo-Fu Tseng | c8a8684 | 2010-10-18 14:10:40 +0000 | [diff] [blame] | 1614 | } |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 1615 | |
| 1616 | jme_reset_link(jme); |
| 1617 | |
| 1618 | return 0; |
| 1619 | |
| 1620 | err_out: |
| 1621 | netif_stop_queue(netdev); |
| 1622 | netif_carrier_off(netdev); |
| 1623 | return rc; |
| 1624 | } |
| 1625 | |
| 1626 | static void |
| 1627 | jme_set_100m_half(struct jme_adapter *jme) |
| 1628 | { |
| 1629 | u32 bmcr, tmp; |
| 1630 | |
Guo-Fu Tseng | 1c55781 | 2010-10-24 16:18:25 -0700 | [diff] [blame] | 1631 | jme_phy_on(jme); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 1632 | bmcr = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_BMCR); |
| 1633 | tmp = bmcr & ~(BMCR_ANENABLE | BMCR_SPEED100 | |
| 1634 | BMCR_SPEED1000 | BMCR_FULLDPLX); |
| 1635 | tmp |= BMCR_SPEED100; |
| 1636 | |
| 1637 | if (bmcr != tmp) |
| 1638 | jme_mdio_write(jme->dev, jme->mii_if.phy_id, MII_BMCR, tmp); |
| 1639 | |
| 1640 | if (jme->fpgaver) |
| 1641 | jwrite32(jme, JME_GHC, GHC_SPEED_100M | GHC_LINK_POLL); |
| 1642 | else |
| 1643 | jwrite32(jme, JME_GHC, GHC_SPEED_100M); |
| 1644 | } |
| 1645 | |
| 1646 | #define JME_WAIT_LINK_TIME 2000 /* 2000ms */ |
| 1647 | static void |
| 1648 | jme_wait_link(struct jme_adapter *jme) |
| 1649 | { |
| 1650 | u32 phylink, to = JME_WAIT_LINK_TIME; |
| 1651 | |
| 1652 | mdelay(1000); |
| 1653 | phylink = jme_linkstat_from_phy(jme); |
| 1654 | while (!(phylink & PHY_LINK_UP) && (to -= 10) > 0) { |
| 1655 | mdelay(10); |
| 1656 | phylink = jme_linkstat_from_phy(jme); |
| 1657 | } |
| 1658 | } |
| 1659 | |
| 1660 | static inline void |
| 1661 | jme_phy_off(struct jme_adapter *jme) |
| 1662 | { |
| 1663 | jme_mdio_write(jme->dev, jme->mii_if.phy_id, MII_BMCR, BMCR_PDOWN); |
| 1664 | } |
| 1665 | |
Guo-Fu Tseng | 1c55781 | 2010-10-24 16:18:25 -0700 | [diff] [blame] | 1666 | static void |
| 1667 | jme_powersave_phy(struct jme_adapter *jme) |
| 1668 | { |
| 1669 | if (jme->reg_pmcs) { |
| 1670 | jme_set_100m_half(jme); |
| 1671 | |
| 1672 | if (jme->reg_pmcs & (PMCS_LFEN | PMCS_LREN)) |
| 1673 | jme_wait_link(jme); |
| 1674 | |
| 1675 | jwrite32(jme, JME_PMCS, jme->reg_pmcs); |
| 1676 | } else { |
| 1677 | jme_phy_off(jme); |
| 1678 | } |
| 1679 | } |
| 1680 | |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 1681 | static int |
| 1682 | jme_close(struct net_device *netdev) |
| 1683 | { |
| 1684 | struct jme_adapter *jme = netdev_priv(netdev); |
| 1685 | |
| 1686 | netif_stop_queue(netdev); |
| 1687 | netif_carrier_off(netdev); |
| 1688 | |
| 1689 | jme_stop_irq(jme); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 1690 | jme_free_irq(jme); |
| 1691 | |
| 1692 | JME_NAPI_DISABLE(jme); |
| 1693 | |
Guo-Fu Tseng | 38ed0c2 | 2009-07-06 04:37:52 +0000 | [diff] [blame] | 1694 | tasklet_disable(&jme->linkch_task); |
| 1695 | tasklet_disable(&jme->txclean_task); |
| 1696 | tasklet_disable(&jme->rxclean_task); |
| 1697 | tasklet_disable(&jme->rxempty_task); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 1698 | |
| 1699 | jme_reset_ghc_speed(jme); |
| 1700 | jme_disable_rx_engine(jme); |
| 1701 | jme_disable_tx_engine(jme); |
| 1702 | jme_reset_mac_processor(jme); |
| 1703 | jme_free_rx_resources(jme); |
| 1704 | jme_free_tx_resources(jme); |
| 1705 | jme->phylink = 0; |
| 1706 | jme_phy_off(jme); |
| 1707 | |
| 1708 | return 0; |
| 1709 | } |
| 1710 | |
| 1711 | static int |
| 1712 | jme_alloc_txdesc(struct jme_adapter *jme, |
| 1713 | struct sk_buff *skb) |
| 1714 | { |
Guo-Fu Tseng | eacf69a | 2009-07-06 04:36:30 +0000 | [diff] [blame] | 1715 | struct jme_ring *txring = &(jme->txring[0]); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 1716 | int idx, nr_alloc, mask = jme->tx_ring_mask; |
| 1717 | |
| 1718 | idx = txring->next_to_use; |
| 1719 | nr_alloc = skb_shinfo(skb)->nr_frags + 2; |
| 1720 | |
| 1721 | if (unlikely(atomic_read(&txring->nr_free) < nr_alloc)) |
| 1722 | return -1; |
| 1723 | |
| 1724 | atomic_sub(nr_alloc, &txring->nr_free); |
| 1725 | |
| 1726 | txring->next_to_use = (txring->next_to_use + nr_alloc) & mask; |
| 1727 | |
| 1728 | return idx; |
| 1729 | } |
| 1730 | |
| 1731 | static void |
| 1732 | jme_fill_tx_map(struct pci_dev *pdev, |
| 1733 | struct txdesc *txdesc, |
| 1734 | struct jme_buffer_info *txbi, |
| 1735 | struct page *page, |
| 1736 | u32 page_offset, |
| 1737 | u32 len, |
| 1738 | u8 hidma) |
| 1739 | { |
| 1740 | dma_addr_t dmaaddr; |
| 1741 | |
| 1742 | dmaaddr = pci_map_page(pdev, |
| 1743 | page, |
| 1744 | page_offset, |
| 1745 | len, |
| 1746 | PCI_DMA_TODEVICE); |
| 1747 | |
| 1748 | pci_dma_sync_single_for_device(pdev, |
| 1749 | dmaaddr, |
| 1750 | len, |
| 1751 | PCI_DMA_TODEVICE); |
| 1752 | |
| 1753 | txdesc->dw[0] = 0; |
| 1754 | txdesc->dw[1] = 0; |
| 1755 | txdesc->desc2.flags = TXFLAG_OWN; |
| 1756 | txdesc->desc2.flags |= (hidma) ? TXFLAG_64BIT : 0; |
| 1757 | txdesc->desc2.datalen = cpu_to_le16(len); |
| 1758 | txdesc->desc2.bufaddrh = cpu_to_le32((__u64)dmaaddr >> 32); |
| 1759 | txdesc->desc2.bufaddrl = cpu_to_le32( |
| 1760 | (__u64)dmaaddr & 0xFFFFFFFFUL); |
| 1761 | |
| 1762 | txbi->mapping = dmaaddr; |
| 1763 | txbi->len = len; |
| 1764 | } |
| 1765 | |
| 1766 | static void |
| 1767 | jme_map_tx_skb(struct jme_adapter *jme, struct sk_buff *skb, int idx) |
| 1768 | { |
Guo-Fu Tseng | eacf69a | 2009-07-06 04:36:30 +0000 | [diff] [blame] | 1769 | struct jme_ring *txring = &(jme->txring[0]); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 1770 | struct txdesc *txdesc = txring->desc, *ctxdesc; |
| 1771 | struct jme_buffer_info *txbi = txring->bufinf, *ctxbi; |
| 1772 | u8 hidma = jme->dev->features & NETIF_F_HIGHDMA; |
| 1773 | int i, nr_frags = skb_shinfo(skb)->nr_frags; |
| 1774 | int mask = jme->tx_ring_mask; |
| 1775 | struct skb_frag_struct *frag; |
| 1776 | u32 len; |
| 1777 | |
| 1778 | for (i = 0 ; i < nr_frags ; ++i) { |
| 1779 | frag = &skb_shinfo(skb)->frags[i]; |
| 1780 | ctxdesc = txdesc + ((idx + i + 2) & (mask)); |
| 1781 | ctxbi = txbi + ((idx + i + 2) & (mask)); |
| 1782 | |
| 1783 | jme_fill_tx_map(jme->pdev, ctxdesc, ctxbi, frag->page, |
| 1784 | frag->page_offset, frag->size, hidma); |
| 1785 | } |
| 1786 | |
| 1787 | len = skb_is_nonlinear(skb) ? skb_headlen(skb) : skb->len; |
| 1788 | ctxdesc = txdesc + ((idx + 1) & (mask)); |
| 1789 | ctxbi = txbi + ((idx + 1) & (mask)); |
| 1790 | jme_fill_tx_map(jme->pdev, ctxdesc, ctxbi, virt_to_page(skb->data), |
| 1791 | offset_in_page(skb->data), len, hidma); |
| 1792 | |
| 1793 | } |
| 1794 | |
| 1795 | static int |
| 1796 | jme_expand_header(struct jme_adapter *jme, struct sk_buff *skb) |
| 1797 | { |
| 1798 | if (unlikely(skb_shinfo(skb)->gso_size && |
| 1799 | skb_header_cloned(skb) && |
| 1800 | pskb_expand_head(skb, 0, 0, GFP_ATOMIC))) { |
| 1801 | dev_kfree_skb(skb); |
| 1802 | return -1; |
| 1803 | } |
| 1804 | |
| 1805 | return 0; |
| 1806 | } |
| 1807 | |
| 1808 | static int |
Harvey Harrison | 31c221c | 2008-11-19 15:50:59 -0800 | [diff] [blame] | 1809 | jme_tx_tso(struct sk_buff *skb, __le16 *mss, u8 *flags) |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 1810 | { |
Harvey Harrison | 31c221c | 2008-11-19 15:50:59 -0800 | [diff] [blame] | 1811 | *mss = cpu_to_le16(skb_shinfo(skb)->gso_size << TXDESC_MSS_SHIFT); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 1812 | if (*mss) { |
| 1813 | *flags |= TXFLAG_LSEN; |
| 1814 | |
| 1815 | if (skb->protocol == htons(ETH_P_IP)) { |
| 1816 | struct iphdr *iph = ip_hdr(skb); |
| 1817 | |
| 1818 | iph->check = 0; |
| 1819 | tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr, |
| 1820 | iph->daddr, 0, |
| 1821 | IPPROTO_TCP, |
| 1822 | 0); |
| 1823 | } else { |
| 1824 | struct ipv6hdr *ip6h = ipv6_hdr(skb); |
| 1825 | |
| 1826 | tcp_hdr(skb)->check = ~csum_ipv6_magic(&ip6h->saddr, |
| 1827 | &ip6h->daddr, 0, |
| 1828 | IPPROTO_TCP, |
| 1829 | 0); |
| 1830 | } |
| 1831 | |
| 1832 | return 0; |
| 1833 | } |
| 1834 | |
| 1835 | return 1; |
| 1836 | } |
| 1837 | |
| 1838 | static void |
| 1839 | jme_tx_csum(struct jme_adapter *jme, struct sk_buff *skb, u8 *flags) |
| 1840 | { |
| 1841 | if (skb->ip_summed == CHECKSUM_PARTIAL) { |
| 1842 | u8 ip_proto; |
| 1843 | |
| 1844 | switch (skb->protocol) { |
| 1845 | case htons(ETH_P_IP): |
| 1846 | ip_proto = ip_hdr(skb)->protocol; |
| 1847 | break; |
| 1848 | case htons(ETH_P_IPV6): |
| 1849 | ip_proto = ipv6_hdr(skb)->nexthdr; |
| 1850 | break; |
| 1851 | default: |
| 1852 | ip_proto = 0; |
| 1853 | break; |
| 1854 | } |
| 1855 | |
| 1856 | switch (ip_proto) { |
| 1857 | case IPPROTO_TCP: |
| 1858 | *flags |= TXFLAG_TCPCS; |
| 1859 | break; |
| 1860 | case IPPROTO_UDP: |
| 1861 | *flags |= TXFLAG_UDPCS; |
| 1862 | break; |
| 1863 | default: |
Joe Perches | 49d70c4 | 2010-09-04 22:21:05 +0000 | [diff] [blame] | 1864 | netif_err(jme, tx_err, jme->dev, "Error upper layer protocol\n"); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 1865 | break; |
| 1866 | } |
| 1867 | } |
| 1868 | } |
| 1869 | |
| 1870 | static inline void |
Harvey Harrison | 31c221c | 2008-11-19 15:50:59 -0800 | [diff] [blame] | 1871 | jme_tx_vlan(struct sk_buff *skb, __le16 *vlan, u8 *flags) |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 1872 | { |
| 1873 | if (vlan_tx_tag_present(skb)) { |
| 1874 | *flags |= TXFLAG_TAGON; |
Harvey Harrison | 31c221c | 2008-11-19 15:50:59 -0800 | [diff] [blame] | 1875 | *vlan = cpu_to_le16(vlan_tx_tag_get(skb)); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 1876 | } |
| 1877 | } |
| 1878 | |
| 1879 | static int |
Guo-Fu Tseng | 7f7fd2d | 2009-02-27 17:57:01 +0000 | [diff] [blame] | 1880 | jme_fill_tx_desc(struct jme_adapter *jme, struct sk_buff *skb, int idx) |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 1881 | { |
Guo-Fu Tseng | eacf69a | 2009-07-06 04:36:30 +0000 | [diff] [blame] | 1882 | struct jme_ring *txring = &(jme->txring[0]); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 1883 | struct txdesc *txdesc; |
| 1884 | struct jme_buffer_info *txbi; |
| 1885 | u8 flags; |
| 1886 | |
| 1887 | txdesc = (struct txdesc *)txring->desc + idx; |
| 1888 | txbi = txring->bufinf + idx; |
| 1889 | |
| 1890 | txdesc->dw[0] = 0; |
| 1891 | txdesc->dw[1] = 0; |
| 1892 | txdesc->dw[2] = 0; |
| 1893 | txdesc->dw[3] = 0; |
| 1894 | txdesc->desc1.pktsize = cpu_to_le16(skb->len); |
| 1895 | /* |
| 1896 | * Set OWN bit at final. |
| 1897 | * When kernel transmit faster than NIC. |
| 1898 | * And NIC trying to send this descriptor before we tell |
| 1899 | * it to start sending this TX queue. |
| 1900 | * Other fields are already filled correctly. |
| 1901 | */ |
| 1902 | wmb(); |
| 1903 | flags = TXFLAG_OWN | TXFLAG_INT; |
| 1904 | /* |
| 1905 | * Set checksum flags while not tso |
| 1906 | */ |
| 1907 | if (jme_tx_tso(skb, &txdesc->desc1.mss, &flags)) |
| 1908 | jme_tx_csum(jme, skb, &flags); |
| 1909 | jme_tx_vlan(skb, &txdesc->desc1.vlan, &flags); |
Guo-Fu Tseng | 7f7fd2d | 2009-02-27 17:57:01 +0000 | [diff] [blame] | 1910 | jme_map_tx_skb(jme, skb, idx); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 1911 | txdesc->desc1.flags = flags; |
| 1912 | /* |
| 1913 | * Set tx buffer info after telling NIC to send |
| 1914 | * For better tx_clean timing |
| 1915 | */ |
| 1916 | wmb(); |
| 1917 | txbi->nr_desc = skb_shinfo(skb)->nr_frags + 2; |
| 1918 | txbi->skb = skb; |
| 1919 | txbi->len = skb->len; |
| 1920 | txbi->start_xmit = jiffies; |
| 1921 | if (!txbi->start_xmit) |
| 1922 | txbi->start_xmit = (0UL-1); |
| 1923 | |
| 1924 | return 0; |
| 1925 | } |
| 1926 | |
| 1927 | static void |
| 1928 | jme_stop_queue_if_full(struct jme_adapter *jme) |
| 1929 | { |
Guo-Fu Tseng | eacf69a | 2009-07-06 04:36:30 +0000 | [diff] [blame] | 1930 | struct jme_ring *txring = &(jme->txring[0]); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 1931 | struct jme_buffer_info *txbi = txring->bufinf; |
| 1932 | int idx = atomic_read(&txring->next_to_clean); |
| 1933 | |
| 1934 | txbi += idx; |
| 1935 | |
| 1936 | smp_wmb(); |
| 1937 | if (unlikely(atomic_read(&txring->nr_free) < (MAX_SKB_FRAGS+2))) { |
| 1938 | netif_stop_queue(jme->dev); |
Joe Perches | 49d70c4 | 2010-09-04 22:21:05 +0000 | [diff] [blame] | 1939 | netif_info(jme, tx_queued, jme->dev, "TX Queue Paused\n"); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 1940 | smp_wmb(); |
| 1941 | if (atomic_read(&txring->nr_free) |
| 1942 | >= (jme->tx_wake_threshold)) { |
| 1943 | netif_wake_queue(jme->dev); |
Joe Perches | 49d70c4 | 2010-09-04 22:21:05 +0000 | [diff] [blame] | 1944 | netif_info(jme, tx_queued, jme->dev, "TX Queue Fast Waked\n"); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 1945 | } |
| 1946 | } |
| 1947 | |
| 1948 | if (unlikely(txbi->start_xmit && |
| 1949 | (jiffies - txbi->start_xmit) >= TX_TIMEOUT && |
| 1950 | txbi->skb)) { |
| 1951 | netif_stop_queue(jme->dev); |
Joe Perches | 49d70c4 | 2010-09-04 22:21:05 +0000 | [diff] [blame] | 1952 | netif_info(jme, tx_queued, jme->dev, |
| 1953 | "TX Queue Stopped %d@%lu\n", idx, jiffies); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 1954 | } |
| 1955 | } |
| 1956 | |
| 1957 | /* |
| 1958 | * This function is already protected by netif_tx_lock() |
| 1959 | */ |
| 1960 | |
Stephen Hemminger | 61357325 | 2009-08-31 19:50:58 +0000 | [diff] [blame] | 1961 | static netdev_tx_t |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 1962 | jme_start_xmit(struct sk_buff *skb, struct net_device *netdev) |
| 1963 | { |
| 1964 | struct jme_adapter *jme = netdev_priv(netdev); |
| 1965 | int idx; |
| 1966 | |
| 1967 | if (unlikely(jme_expand_header(jme, skb))) { |
| 1968 | ++(NET_STAT(jme).tx_dropped); |
| 1969 | return NETDEV_TX_OK; |
| 1970 | } |
| 1971 | |
| 1972 | idx = jme_alloc_txdesc(jme, skb); |
| 1973 | |
| 1974 | if (unlikely(idx < 0)) { |
| 1975 | netif_stop_queue(netdev); |
Joe Perches | 49d70c4 | 2010-09-04 22:21:05 +0000 | [diff] [blame] | 1976 | netif_err(jme, tx_err, jme->dev, |
| 1977 | "BUG! Tx ring full when queue awake!\n"); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 1978 | |
| 1979 | return NETDEV_TX_BUSY; |
| 1980 | } |
| 1981 | |
Guo-Fu Tseng | 7f7fd2d | 2009-02-27 17:57:01 +0000 | [diff] [blame] | 1982 | jme_fill_tx_desc(jme, skb, idx); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 1983 | |
| 1984 | jwrite32(jme, JME_TXCS, jme->reg_txcs | |
| 1985 | TXCS_SELECT_QUEUE0 | |
| 1986 | TXCS_QUEUE0S | |
| 1987 | TXCS_ENABLE); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 1988 | |
Joe Perches | 49d70c4 | 2010-09-04 22:21:05 +0000 | [diff] [blame] | 1989 | tx_dbg(jme, "xmit: %d+%d@%lu\n", |
| 1990 | idx, skb_shinfo(skb)->nr_frags + 2, jiffies); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 1991 | jme_stop_queue_if_full(jme); |
| 1992 | |
| 1993 | return NETDEV_TX_OK; |
| 1994 | } |
| 1995 | |
| 1996 | static int |
| 1997 | jme_set_macaddr(struct net_device *netdev, void *p) |
| 1998 | { |
| 1999 | struct jme_adapter *jme = netdev_priv(netdev); |
| 2000 | struct sockaddr *addr = p; |
| 2001 | u32 val; |
| 2002 | |
| 2003 | if (netif_running(netdev)) |
| 2004 | return -EBUSY; |
| 2005 | |
| 2006 | spin_lock_bh(&jme->macaddr_lock); |
| 2007 | memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); |
| 2008 | |
| 2009 | val = (addr->sa_data[3] & 0xff) << 24 | |
| 2010 | (addr->sa_data[2] & 0xff) << 16 | |
| 2011 | (addr->sa_data[1] & 0xff) << 8 | |
| 2012 | (addr->sa_data[0] & 0xff); |
| 2013 | jwrite32(jme, JME_RXUMA_LO, val); |
| 2014 | val = (addr->sa_data[5] & 0xff) << 8 | |
| 2015 | (addr->sa_data[4] & 0xff); |
| 2016 | jwrite32(jme, JME_RXUMA_HI, val); |
| 2017 | spin_unlock_bh(&jme->macaddr_lock); |
| 2018 | |
| 2019 | return 0; |
| 2020 | } |
| 2021 | |
| 2022 | static void |
| 2023 | jme_set_multi(struct net_device *netdev) |
| 2024 | { |
| 2025 | struct jme_adapter *jme = netdev_priv(netdev); |
| 2026 | u32 mc_hash[2] = {}; |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 2027 | |
| 2028 | spin_lock_bh(&jme->rxmcs_lock); |
| 2029 | |
| 2030 | jme->reg_rxmcs |= RXMCS_BRDFRAME | RXMCS_UNIFRAME; |
| 2031 | |
| 2032 | if (netdev->flags & IFF_PROMISC) { |
| 2033 | jme->reg_rxmcs |= RXMCS_ALLFRAME; |
| 2034 | } else if (netdev->flags & IFF_ALLMULTI) { |
| 2035 | jme->reg_rxmcs |= RXMCS_ALLMULFRAME; |
| 2036 | } else if (netdev->flags & IFF_MULTICAST) { |
Jiri Pirko | 22bedad3 | 2010-04-01 21:22:57 +0000 | [diff] [blame] | 2037 | struct netdev_hw_addr *ha; |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 2038 | int bit_nr; |
| 2039 | |
| 2040 | jme->reg_rxmcs |= RXMCS_MULFRAME | RXMCS_MULFILTERED; |
Jiri Pirko | 22bedad3 | 2010-04-01 21:22:57 +0000 | [diff] [blame] | 2041 | netdev_for_each_mc_addr(ha, netdev) { |
| 2042 | bit_nr = ether_crc(ETH_ALEN, ha->addr) & 0x3F; |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 2043 | mc_hash[bit_nr >> 5] |= 1 << (bit_nr & 0x1F); |
| 2044 | } |
| 2045 | |
| 2046 | jwrite32(jme, JME_RXMCHT_LO, mc_hash[0]); |
| 2047 | jwrite32(jme, JME_RXMCHT_HI, mc_hash[1]); |
| 2048 | } |
| 2049 | |
| 2050 | wmb(); |
| 2051 | jwrite32(jme, JME_RXMCS, jme->reg_rxmcs); |
| 2052 | |
| 2053 | spin_unlock_bh(&jme->rxmcs_lock); |
| 2054 | } |
| 2055 | |
| 2056 | static int |
| 2057 | jme_change_mtu(struct net_device *netdev, int new_mtu) |
| 2058 | { |
| 2059 | struct jme_adapter *jme = netdev_priv(netdev); |
| 2060 | |
| 2061 | if (new_mtu == jme->old_mtu) |
| 2062 | return 0; |
| 2063 | |
| 2064 | if (((new_mtu + ETH_HLEN) > MAX_ETHERNET_JUMBO_PACKET_SIZE) || |
| 2065 | ((new_mtu) < IPV6_MIN_MTU)) |
| 2066 | return -EINVAL; |
| 2067 | |
| 2068 | if (new_mtu > 4000) { |
| 2069 | jme->reg_rxcs &= ~RXCS_FIFOTHNP; |
| 2070 | jme->reg_rxcs |= RXCS_FIFOTHNP_64QW; |
| 2071 | jme_restart_rx_engine(jme); |
| 2072 | } else { |
| 2073 | jme->reg_rxcs &= ~RXCS_FIFOTHNP; |
| 2074 | jme->reg_rxcs |= RXCS_FIFOTHNP_128QW; |
| 2075 | jme_restart_rx_engine(jme); |
| 2076 | } |
| 2077 | |
| 2078 | if (new_mtu > 1900) { |
Michał Mirosław | 7903264 | 2010-11-30 06:38:00 +0000 | [diff] [blame] | 2079 | netdev->features &= ~(NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | |
| 2080 | NETIF_F_TSO | NETIF_F_TSO6); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 2081 | } else { |
| 2082 | if (test_bit(JME_FLAG_TXCSUM, &jme->flags)) |
Michał Mirosław | 7903264 | 2010-11-30 06:38:00 +0000 | [diff] [blame] | 2083 | netdev->features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM; |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 2084 | if (test_bit(JME_FLAG_TSO, &jme->flags)) |
| 2085 | netdev->features |= NETIF_F_TSO | NETIF_F_TSO6; |
| 2086 | } |
| 2087 | |
| 2088 | netdev->mtu = new_mtu; |
| 2089 | jme_reset_link(jme); |
| 2090 | |
| 2091 | return 0; |
| 2092 | } |
| 2093 | |
| 2094 | static void |
| 2095 | jme_tx_timeout(struct net_device *netdev) |
| 2096 | { |
| 2097 | struct jme_adapter *jme = netdev_priv(netdev); |
| 2098 | |
| 2099 | jme->phylink = 0; |
| 2100 | jme_reset_phy_processor(jme); |
| 2101 | if (test_bit(JME_FLAG_SSET, &jme->flags)) |
| 2102 | jme_set_settings(netdev, &jme->old_ecmd); |
| 2103 | |
| 2104 | /* |
| 2105 | * Force to Reset the link again |
| 2106 | */ |
| 2107 | jme_reset_link(jme); |
| 2108 | } |
| 2109 | |
Guo-Fu Tseng | bf5e536 | 2010-03-17 00:09:30 +0000 | [diff] [blame] | 2110 | static inline void jme_pause_rx(struct jme_adapter *jme) |
| 2111 | { |
| 2112 | atomic_dec(&jme->link_changing); |
| 2113 | |
| 2114 | jme_set_rx_pcc(jme, PCC_OFF); |
| 2115 | if (test_bit(JME_FLAG_POLL, &jme->flags)) { |
| 2116 | JME_NAPI_DISABLE(jme); |
| 2117 | } else { |
| 2118 | tasklet_disable(&jme->rxclean_task); |
| 2119 | tasklet_disable(&jme->rxempty_task); |
| 2120 | } |
| 2121 | } |
| 2122 | |
| 2123 | static inline void jme_resume_rx(struct jme_adapter *jme) |
| 2124 | { |
| 2125 | struct dynpcc_info *dpi = &(jme->dpi); |
| 2126 | |
| 2127 | if (test_bit(JME_FLAG_POLL, &jme->flags)) { |
| 2128 | JME_NAPI_ENABLE(jme); |
| 2129 | } else { |
| 2130 | tasklet_hi_enable(&jme->rxclean_task); |
| 2131 | tasklet_hi_enable(&jme->rxempty_task); |
| 2132 | } |
| 2133 | dpi->cur = PCC_P1; |
| 2134 | dpi->attempt = PCC_P1; |
| 2135 | dpi->cnt = 0; |
| 2136 | jme_set_rx_pcc(jme, PCC_P1); |
| 2137 | |
| 2138 | atomic_inc(&jme->link_changing); |
| 2139 | } |
| 2140 | |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 2141 | static void |
| 2142 | jme_vlan_rx_register(struct net_device *netdev, struct vlan_group *grp) |
| 2143 | { |
| 2144 | struct jme_adapter *jme = netdev_priv(netdev); |
| 2145 | |
Guo-Fu Tseng | bf5e536 | 2010-03-17 00:09:30 +0000 | [diff] [blame] | 2146 | jme_pause_rx(jme); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 2147 | jme->vlgrp = grp; |
Guo-Fu Tseng | bf5e536 | 2010-03-17 00:09:30 +0000 | [diff] [blame] | 2148 | jme_resume_rx(jme); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 2149 | } |
| 2150 | |
| 2151 | static void |
| 2152 | jme_get_drvinfo(struct net_device *netdev, |
| 2153 | struct ethtool_drvinfo *info) |
| 2154 | { |
| 2155 | struct jme_adapter *jme = netdev_priv(netdev); |
| 2156 | |
| 2157 | strcpy(info->driver, DRV_NAME); |
| 2158 | strcpy(info->version, DRV_VERSION); |
| 2159 | strcpy(info->bus_info, pci_name(jme->pdev)); |
| 2160 | } |
| 2161 | |
| 2162 | static int |
| 2163 | jme_get_regs_len(struct net_device *netdev) |
| 2164 | { |
| 2165 | return JME_REG_LEN; |
| 2166 | } |
| 2167 | |
| 2168 | static void |
| 2169 | mmapio_memcpy(struct jme_adapter *jme, u32 *p, u32 reg, int len) |
| 2170 | { |
| 2171 | int i; |
| 2172 | |
| 2173 | for (i = 0 ; i < len ; i += 4) |
| 2174 | p[i >> 2] = jread32(jme, reg + i); |
| 2175 | } |
| 2176 | |
| 2177 | static void |
| 2178 | mdio_memcpy(struct jme_adapter *jme, u32 *p, int reg_nr) |
| 2179 | { |
| 2180 | int i; |
| 2181 | u16 *p16 = (u16 *)p; |
| 2182 | |
| 2183 | for (i = 0 ; i < reg_nr ; ++i) |
| 2184 | p16[i] = jme_mdio_read(jme->dev, jme->mii_if.phy_id, i); |
| 2185 | } |
| 2186 | |
| 2187 | static void |
| 2188 | jme_get_regs(struct net_device *netdev, struct ethtool_regs *regs, void *p) |
| 2189 | { |
| 2190 | struct jme_adapter *jme = netdev_priv(netdev); |
| 2191 | u32 *p32 = (u32 *)p; |
| 2192 | |
| 2193 | memset(p, 0xFF, JME_REG_LEN); |
| 2194 | |
| 2195 | regs->version = 1; |
| 2196 | mmapio_memcpy(jme, p32, JME_MAC, JME_MAC_LEN); |
| 2197 | |
| 2198 | p32 += 0x100 >> 2; |
| 2199 | mmapio_memcpy(jme, p32, JME_PHY, JME_PHY_LEN); |
| 2200 | |
| 2201 | p32 += 0x100 >> 2; |
| 2202 | mmapio_memcpy(jme, p32, JME_MISC, JME_MISC_LEN); |
| 2203 | |
| 2204 | p32 += 0x100 >> 2; |
| 2205 | mmapio_memcpy(jme, p32, JME_RSS, JME_RSS_LEN); |
| 2206 | |
| 2207 | p32 += 0x100 >> 2; |
| 2208 | mdio_memcpy(jme, p32, JME_PHY_REG_NR); |
| 2209 | } |
| 2210 | |
| 2211 | static int |
| 2212 | jme_get_coalesce(struct net_device *netdev, struct ethtool_coalesce *ecmd) |
| 2213 | { |
| 2214 | struct jme_adapter *jme = netdev_priv(netdev); |
| 2215 | |
| 2216 | ecmd->tx_coalesce_usecs = PCC_TX_TO; |
| 2217 | ecmd->tx_max_coalesced_frames = PCC_TX_CNT; |
| 2218 | |
| 2219 | if (test_bit(JME_FLAG_POLL, &jme->flags)) { |
| 2220 | ecmd->use_adaptive_rx_coalesce = false; |
| 2221 | ecmd->rx_coalesce_usecs = 0; |
| 2222 | ecmd->rx_max_coalesced_frames = 0; |
| 2223 | return 0; |
| 2224 | } |
| 2225 | |
| 2226 | ecmd->use_adaptive_rx_coalesce = true; |
| 2227 | |
| 2228 | switch (jme->dpi.cur) { |
| 2229 | case PCC_P1: |
| 2230 | ecmd->rx_coalesce_usecs = PCC_P1_TO; |
| 2231 | ecmd->rx_max_coalesced_frames = PCC_P1_CNT; |
| 2232 | break; |
| 2233 | case PCC_P2: |
| 2234 | ecmd->rx_coalesce_usecs = PCC_P2_TO; |
| 2235 | ecmd->rx_max_coalesced_frames = PCC_P2_CNT; |
| 2236 | break; |
| 2237 | case PCC_P3: |
| 2238 | ecmd->rx_coalesce_usecs = PCC_P3_TO; |
| 2239 | ecmd->rx_max_coalesced_frames = PCC_P3_CNT; |
| 2240 | break; |
| 2241 | default: |
| 2242 | break; |
| 2243 | } |
| 2244 | |
| 2245 | return 0; |
| 2246 | } |
| 2247 | |
| 2248 | static int |
| 2249 | jme_set_coalesce(struct net_device *netdev, struct ethtool_coalesce *ecmd) |
| 2250 | { |
| 2251 | struct jme_adapter *jme = netdev_priv(netdev); |
| 2252 | struct dynpcc_info *dpi = &(jme->dpi); |
| 2253 | |
| 2254 | if (netif_running(netdev)) |
| 2255 | return -EBUSY; |
| 2256 | |
Joe Perches | 8e95a20 | 2009-12-03 07:58:21 +0000 | [diff] [blame] | 2257 | if (ecmd->use_adaptive_rx_coalesce && |
| 2258 | test_bit(JME_FLAG_POLL, &jme->flags)) { |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 2259 | clear_bit(JME_FLAG_POLL, &jme->flags); |
| 2260 | jme->jme_rx = netif_rx; |
| 2261 | jme->jme_vlan_rx = vlan_hwaccel_rx; |
| 2262 | dpi->cur = PCC_P1; |
| 2263 | dpi->attempt = PCC_P1; |
| 2264 | dpi->cnt = 0; |
| 2265 | jme_set_rx_pcc(jme, PCC_P1); |
| 2266 | jme_interrupt_mode(jme); |
Joe Perches | 8e95a20 | 2009-12-03 07:58:21 +0000 | [diff] [blame] | 2267 | } else if (!(ecmd->use_adaptive_rx_coalesce) && |
| 2268 | !(test_bit(JME_FLAG_POLL, &jme->flags))) { |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 2269 | set_bit(JME_FLAG_POLL, &jme->flags); |
| 2270 | jme->jme_rx = netif_receive_skb; |
| 2271 | jme->jme_vlan_rx = vlan_hwaccel_receive_skb; |
| 2272 | jme_interrupt_mode(jme); |
| 2273 | } |
| 2274 | |
| 2275 | return 0; |
| 2276 | } |
| 2277 | |
| 2278 | static void |
| 2279 | jme_get_pauseparam(struct net_device *netdev, |
| 2280 | struct ethtool_pauseparam *ecmd) |
| 2281 | { |
| 2282 | struct jme_adapter *jme = netdev_priv(netdev); |
| 2283 | u32 val; |
| 2284 | |
| 2285 | ecmd->tx_pause = (jme->reg_txpfc & TXPFC_PF_EN) != 0; |
| 2286 | ecmd->rx_pause = (jme->reg_rxmcs & RXMCS_FLOWCTRL) != 0; |
| 2287 | |
| 2288 | spin_lock_bh(&jme->phy_lock); |
| 2289 | val = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_ADVERTISE); |
| 2290 | spin_unlock_bh(&jme->phy_lock); |
| 2291 | |
| 2292 | ecmd->autoneg = |
| 2293 | (val & (ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM)) != 0; |
| 2294 | } |
| 2295 | |
| 2296 | static int |
| 2297 | jme_set_pauseparam(struct net_device *netdev, |
| 2298 | struct ethtool_pauseparam *ecmd) |
| 2299 | { |
| 2300 | struct jme_adapter *jme = netdev_priv(netdev); |
| 2301 | u32 val; |
| 2302 | |
| 2303 | if (((jme->reg_txpfc & TXPFC_PF_EN) != 0) ^ |
| 2304 | (ecmd->tx_pause != 0)) { |
| 2305 | |
| 2306 | if (ecmd->tx_pause) |
| 2307 | jme->reg_txpfc |= TXPFC_PF_EN; |
| 2308 | else |
| 2309 | jme->reg_txpfc &= ~TXPFC_PF_EN; |
| 2310 | |
| 2311 | jwrite32(jme, JME_TXPFC, jme->reg_txpfc); |
| 2312 | } |
| 2313 | |
| 2314 | spin_lock_bh(&jme->rxmcs_lock); |
| 2315 | if (((jme->reg_rxmcs & RXMCS_FLOWCTRL) != 0) ^ |
| 2316 | (ecmd->rx_pause != 0)) { |
| 2317 | |
| 2318 | if (ecmd->rx_pause) |
| 2319 | jme->reg_rxmcs |= RXMCS_FLOWCTRL; |
| 2320 | else |
| 2321 | jme->reg_rxmcs &= ~RXMCS_FLOWCTRL; |
| 2322 | |
| 2323 | jwrite32(jme, JME_RXMCS, jme->reg_rxmcs); |
| 2324 | } |
| 2325 | spin_unlock_bh(&jme->rxmcs_lock); |
| 2326 | |
| 2327 | spin_lock_bh(&jme->phy_lock); |
| 2328 | val = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_ADVERTISE); |
| 2329 | if (((val & (ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM)) != 0) ^ |
| 2330 | (ecmd->autoneg != 0)) { |
| 2331 | |
| 2332 | if (ecmd->autoneg) |
| 2333 | val |= (ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM); |
| 2334 | else |
| 2335 | val &= ~(ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM); |
| 2336 | |
| 2337 | jme_mdio_write(jme->dev, jme->mii_if.phy_id, |
| 2338 | MII_ADVERTISE, val); |
| 2339 | } |
| 2340 | spin_unlock_bh(&jme->phy_lock); |
| 2341 | |
| 2342 | return 0; |
| 2343 | } |
| 2344 | |
| 2345 | static void |
| 2346 | jme_get_wol(struct net_device *netdev, |
| 2347 | struct ethtool_wolinfo *wol) |
| 2348 | { |
| 2349 | struct jme_adapter *jme = netdev_priv(netdev); |
| 2350 | |
| 2351 | wol->supported = WAKE_MAGIC | WAKE_PHY; |
| 2352 | |
| 2353 | wol->wolopts = 0; |
| 2354 | |
| 2355 | if (jme->reg_pmcs & (PMCS_LFEN | PMCS_LREN)) |
| 2356 | wol->wolopts |= WAKE_PHY; |
| 2357 | |
| 2358 | if (jme->reg_pmcs & PMCS_MFEN) |
| 2359 | wol->wolopts |= WAKE_MAGIC; |
| 2360 | |
| 2361 | } |
| 2362 | |
| 2363 | static int |
| 2364 | jme_set_wol(struct net_device *netdev, |
| 2365 | struct ethtool_wolinfo *wol) |
| 2366 | { |
| 2367 | struct jme_adapter *jme = netdev_priv(netdev); |
| 2368 | |
| 2369 | if (wol->wolopts & (WAKE_MAGICSECURE | |
| 2370 | WAKE_UCAST | |
| 2371 | WAKE_MCAST | |
| 2372 | WAKE_BCAST | |
| 2373 | WAKE_ARP)) |
| 2374 | return -EOPNOTSUPP; |
| 2375 | |
| 2376 | jme->reg_pmcs = 0; |
| 2377 | |
| 2378 | if (wol->wolopts & WAKE_PHY) |
| 2379 | jme->reg_pmcs |= PMCS_LFEN | PMCS_LREN; |
| 2380 | |
| 2381 | if (wol->wolopts & WAKE_MAGIC) |
| 2382 | jme->reg_pmcs |= PMCS_MFEN; |
| 2383 | |
| 2384 | jwrite32(jme, JME_PMCS, jme->reg_pmcs); |
| 2385 | |
| 2386 | return 0; |
| 2387 | } |
| 2388 | |
| 2389 | static int |
| 2390 | jme_get_settings(struct net_device *netdev, |
| 2391 | struct ethtool_cmd *ecmd) |
| 2392 | { |
| 2393 | struct jme_adapter *jme = netdev_priv(netdev); |
| 2394 | int rc; |
| 2395 | |
| 2396 | spin_lock_bh(&jme->phy_lock); |
| 2397 | rc = mii_ethtool_gset(&(jme->mii_if), ecmd); |
| 2398 | spin_unlock_bh(&jme->phy_lock); |
| 2399 | return rc; |
| 2400 | } |
| 2401 | |
| 2402 | static int |
| 2403 | jme_set_settings(struct net_device *netdev, |
| 2404 | struct ethtool_cmd *ecmd) |
| 2405 | { |
| 2406 | struct jme_adapter *jme = netdev_priv(netdev); |
| 2407 | int rc, fdc = 0; |
| 2408 | |
| 2409 | if (ecmd->speed == SPEED_1000 && ecmd->autoneg != AUTONEG_ENABLE) |
| 2410 | return -EINVAL; |
| 2411 | |
Guo-Fu Tseng | 3ee9401 | 2010-10-18 14:10:41 +0000 | [diff] [blame] | 2412 | /* |
| 2413 | * Check If user changed duplex only while force_media. |
| 2414 | * Hardware would not generate link change interrupt. |
| 2415 | */ |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 2416 | if (jme->mii_if.force_media && |
| 2417 | ecmd->autoneg != AUTONEG_ENABLE && |
| 2418 | (jme->mii_if.full_duplex != ecmd->duplex)) |
| 2419 | fdc = 1; |
| 2420 | |
| 2421 | spin_lock_bh(&jme->phy_lock); |
| 2422 | rc = mii_ethtool_sset(&(jme->mii_if), ecmd); |
| 2423 | spin_unlock_bh(&jme->phy_lock); |
| 2424 | |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 2425 | if (!rc) { |
Guo-Fu Tseng | 3ee9401 | 2010-10-18 14:10:41 +0000 | [diff] [blame] | 2426 | if (fdc) |
| 2427 | jme_reset_link(jme); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 2428 | jme->old_ecmd = *ecmd; |
Guo-Fu Tseng | 334fbbb | 2010-10-18 14:10:43 +0000 | [diff] [blame] | 2429 | set_bit(JME_FLAG_SSET, &jme->flags); |
| 2430 | } |
| 2431 | |
| 2432 | return rc; |
| 2433 | } |
| 2434 | |
| 2435 | static int |
| 2436 | jme_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd) |
| 2437 | { |
| 2438 | int rc; |
| 2439 | struct jme_adapter *jme = netdev_priv(netdev); |
| 2440 | struct mii_ioctl_data *mii_data = if_mii(rq); |
| 2441 | unsigned int duplex_chg; |
| 2442 | |
| 2443 | if (cmd == SIOCSMIIREG) { |
| 2444 | u16 val = mii_data->val_in; |
| 2445 | if (!(val & (BMCR_RESET|BMCR_ANENABLE)) && |
| 2446 | (val & BMCR_SPEED1000)) |
| 2447 | return -EINVAL; |
| 2448 | } |
| 2449 | |
| 2450 | spin_lock_bh(&jme->phy_lock); |
| 2451 | rc = generic_mii_ioctl(&jme->mii_if, mii_data, cmd, &duplex_chg); |
| 2452 | spin_unlock_bh(&jme->phy_lock); |
| 2453 | |
| 2454 | if (!rc && (cmd == SIOCSMIIREG)) { |
| 2455 | if (duplex_chg) |
| 2456 | jme_reset_link(jme); |
| 2457 | jme_get_settings(netdev, &jme->old_ecmd); |
| 2458 | set_bit(JME_FLAG_SSET, &jme->flags); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 2459 | } |
| 2460 | |
| 2461 | return rc; |
| 2462 | } |
| 2463 | |
| 2464 | static u32 |
| 2465 | jme_get_link(struct net_device *netdev) |
| 2466 | { |
| 2467 | struct jme_adapter *jme = netdev_priv(netdev); |
| 2468 | return jread32(jme, JME_PHY_LINK) & PHY_LINK_UP; |
| 2469 | } |
| 2470 | |
| 2471 | static u32 |
| 2472 | jme_get_msglevel(struct net_device *netdev) |
| 2473 | { |
| 2474 | struct jme_adapter *jme = netdev_priv(netdev); |
| 2475 | return jme->msg_enable; |
| 2476 | } |
| 2477 | |
| 2478 | static void |
| 2479 | jme_set_msglevel(struct net_device *netdev, u32 value) |
| 2480 | { |
| 2481 | struct jme_adapter *jme = netdev_priv(netdev); |
| 2482 | jme->msg_enable = value; |
| 2483 | } |
| 2484 | |
| 2485 | static u32 |
| 2486 | jme_get_rx_csum(struct net_device *netdev) |
| 2487 | { |
| 2488 | struct jme_adapter *jme = netdev_priv(netdev); |
| 2489 | return jme->reg_rxmcs & RXMCS_CHECKSUM; |
| 2490 | } |
| 2491 | |
| 2492 | static int |
| 2493 | jme_set_rx_csum(struct net_device *netdev, u32 on) |
| 2494 | { |
| 2495 | struct jme_adapter *jme = netdev_priv(netdev); |
| 2496 | |
| 2497 | spin_lock_bh(&jme->rxmcs_lock); |
| 2498 | if (on) |
| 2499 | jme->reg_rxmcs |= RXMCS_CHECKSUM; |
| 2500 | else |
| 2501 | jme->reg_rxmcs &= ~RXMCS_CHECKSUM; |
| 2502 | jwrite32(jme, JME_RXMCS, jme->reg_rxmcs); |
| 2503 | spin_unlock_bh(&jme->rxmcs_lock); |
| 2504 | |
| 2505 | return 0; |
| 2506 | } |
| 2507 | |
| 2508 | static int |
| 2509 | jme_set_tx_csum(struct net_device *netdev, u32 on) |
| 2510 | { |
| 2511 | struct jme_adapter *jme = netdev_priv(netdev); |
| 2512 | |
| 2513 | if (on) { |
| 2514 | set_bit(JME_FLAG_TXCSUM, &jme->flags); |
| 2515 | if (netdev->mtu <= 1900) |
Michał Mirosław | 7903264 | 2010-11-30 06:38:00 +0000 | [diff] [blame] | 2516 | netdev->features |= |
| 2517 | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM; |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 2518 | } else { |
| 2519 | clear_bit(JME_FLAG_TXCSUM, &jme->flags); |
Michał Mirosław | 7903264 | 2010-11-30 06:38:00 +0000 | [diff] [blame] | 2520 | netdev->features &= |
| 2521 | ~(NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 2522 | } |
| 2523 | |
| 2524 | return 0; |
| 2525 | } |
| 2526 | |
| 2527 | static int |
| 2528 | jme_set_tso(struct net_device *netdev, u32 on) |
| 2529 | { |
| 2530 | struct jme_adapter *jme = netdev_priv(netdev); |
| 2531 | |
| 2532 | if (on) { |
| 2533 | set_bit(JME_FLAG_TSO, &jme->flags); |
| 2534 | if (netdev->mtu <= 1900) |
| 2535 | netdev->features |= NETIF_F_TSO | NETIF_F_TSO6; |
| 2536 | } else { |
| 2537 | clear_bit(JME_FLAG_TSO, &jme->flags); |
| 2538 | netdev->features &= ~(NETIF_F_TSO | NETIF_F_TSO6); |
| 2539 | } |
| 2540 | |
| 2541 | return 0; |
| 2542 | } |
| 2543 | |
| 2544 | static int |
| 2545 | jme_nway_reset(struct net_device *netdev) |
| 2546 | { |
| 2547 | struct jme_adapter *jme = netdev_priv(netdev); |
| 2548 | jme_restart_an(jme); |
| 2549 | return 0; |
| 2550 | } |
| 2551 | |
| 2552 | static u8 |
| 2553 | jme_smb_read(struct jme_adapter *jme, unsigned int addr) |
| 2554 | { |
| 2555 | u32 val; |
| 2556 | int to; |
| 2557 | |
| 2558 | val = jread32(jme, JME_SMBCSR); |
| 2559 | to = JME_SMB_BUSY_TIMEOUT; |
| 2560 | while ((val & SMBCSR_BUSY) && --to) { |
| 2561 | msleep(1); |
| 2562 | val = jread32(jme, JME_SMBCSR); |
| 2563 | } |
| 2564 | if (!to) { |
Joe Perches | 49d70c4 | 2010-09-04 22:21:05 +0000 | [diff] [blame] | 2565 | netif_err(jme, hw, jme->dev, "SMB Bus Busy\n"); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 2566 | return 0xFF; |
| 2567 | } |
| 2568 | |
| 2569 | jwrite32(jme, JME_SMBINTF, |
| 2570 | ((addr << SMBINTF_HWADDR_SHIFT) & SMBINTF_HWADDR) | |
| 2571 | SMBINTF_HWRWN_READ | |
| 2572 | SMBINTF_HWCMD); |
| 2573 | |
| 2574 | val = jread32(jme, JME_SMBINTF); |
| 2575 | to = JME_SMB_BUSY_TIMEOUT; |
| 2576 | while ((val & SMBINTF_HWCMD) && --to) { |
| 2577 | msleep(1); |
| 2578 | val = jread32(jme, JME_SMBINTF); |
| 2579 | } |
| 2580 | if (!to) { |
Joe Perches | 49d70c4 | 2010-09-04 22:21:05 +0000 | [diff] [blame] | 2581 | netif_err(jme, hw, jme->dev, "SMB Bus Busy\n"); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 2582 | return 0xFF; |
| 2583 | } |
| 2584 | |
| 2585 | return (val & SMBINTF_HWDATR) >> SMBINTF_HWDATR_SHIFT; |
| 2586 | } |
| 2587 | |
| 2588 | static void |
| 2589 | jme_smb_write(struct jme_adapter *jme, unsigned int addr, u8 data) |
| 2590 | { |
| 2591 | u32 val; |
| 2592 | int to; |
| 2593 | |
| 2594 | val = jread32(jme, JME_SMBCSR); |
| 2595 | to = JME_SMB_BUSY_TIMEOUT; |
| 2596 | while ((val & SMBCSR_BUSY) && --to) { |
| 2597 | msleep(1); |
| 2598 | val = jread32(jme, JME_SMBCSR); |
| 2599 | } |
| 2600 | if (!to) { |
Joe Perches | 49d70c4 | 2010-09-04 22:21:05 +0000 | [diff] [blame] | 2601 | netif_err(jme, hw, jme->dev, "SMB Bus Busy\n"); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 2602 | return; |
| 2603 | } |
| 2604 | |
| 2605 | jwrite32(jme, JME_SMBINTF, |
| 2606 | ((data << SMBINTF_HWDATW_SHIFT) & SMBINTF_HWDATW) | |
| 2607 | ((addr << SMBINTF_HWADDR_SHIFT) & SMBINTF_HWADDR) | |
| 2608 | SMBINTF_HWRWN_WRITE | |
| 2609 | SMBINTF_HWCMD); |
| 2610 | |
| 2611 | val = jread32(jme, JME_SMBINTF); |
| 2612 | to = JME_SMB_BUSY_TIMEOUT; |
| 2613 | while ((val & SMBINTF_HWCMD) && --to) { |
| 2614 | msleep(1); |
| 2615 | val = jread32(jme, JME_SMBINTF); |
| 2616 | } |
| 2617 | if (!to) { |
Joe Perches | 49d70c4 | 2010-09-04 22:21:05 +0000 | [diff] [blame] | 2618 | netif_err(jme, hw, jme->dev, "SMB Bus Busy\n"); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 2619 | return; |
| 2620 | } |
| 2621 | |
| 2622 | mdelay(2); |
| 2623 | } |
| 2624 | |
| 2625 | static int |
| 2626 | jme_get_eeprom_len(struct net_device *netdev) |
| 2627 | { |
| 2628 | struct jme_adapter *jme = netdev_priv(netdev); |
| 2629 | u32 val; |
| 2630 | val = jread32(jme, JME_SMBCSR); |
| 2631 | return (val & SMBCSR_EEPROMD) ? JME_SMB_LEN : 0; |
| 2632 | } |
| 2633 | |
| 2634 | static int |
| 2635 | jme_get_eeprom(struct net_device *netdev, |
| 2636 | struct ethtool_eeprom *eeprom, u8 *data) |
| 2637 | { |
| 2638 | struct jme_adapter *jme = netdev_priv(netdev); |
| 2639 | int i, offset = eeprom->offset, len = eeprom->len; |
| 2640 | |
| 2641 | /* |
| 2642 | * ethtool will check the boundary for us |
| 2643 | */ |
| 2644 | eeprom->magic = JME_EEPROM_MAGIC; |
| 2645 | for (i = 0 ; i < len ; ++i) |
| 2646 | data[i] = jme_smb_read(jme, i + offset); |
| 2647 | |
| 2648 | return 0; |
| 2649 | } |
| 2650 | |
| 2651 | static int |
| 2652 | jme_set_eeprom(struct net_device *netdev, |
| 2653 | struct ethtool_eeprom *eeprom, u8 *data) |
| 2654 | { |
| 2655 | struct jme_adapter *jme = netdev_priv(netdev); |
| 2656 | int i, offset = eeprom->offset, len = eeprom->len; |
| 2657 | |
| 2658 | if (eeprom->magic != JME_EEPROM_MAGIC) |
| 2659 | return -EINVAL; |
| 2660 | |
| 2661 | /* |
| 2662 | * ethtool will check the boundary for us |
| 2663 | */ |
| 2664 | for (i = 0 ; i < len ; ++i) |
| 2665 | jme_smb_write(jme, i + offset, data[i]); |
| 2666 | |
| 2667 | return 0; |
| 2668 | } |
| 2669 | |
| 2670 | static const struct ethtool_ops jme_ethtool_ops = { |
| 2671 | .get_drvinfo = jme_get_drvinfo, |
| 2672 | .get_regs_len = jme_get_regs_len, |
| 2673 | .get_regs = jme_get_regs, |
| 2674 | .get_coalesce = jme_get_coalesce, |
| 2675 | .set_coalesce = jme_set_coalesce, |
| 2676 | .get_pauseparam = jme_get_pauseparam, |
| 2677 | .set_pauseparam = jme_set_pauseparam, |
| 2678 | .get_wol = jme_get_wol, |
| 2679 | .set_wol = jme_set_wol, |
| 2680 | .get_settings = jme_get_settings, |
| 2681 | .set_settings = jme_set_settings, |
| 2682 | .get_link = jme_get_link, |
| 2683 | .get_msglevel = jme_get_msglevel, |
| 2684 | .set_msglevel = jme_set_msglevel, |
| 2685 | .get_rx_csum = jme_get_rx_csum, |
| 2686 | .set_rx_csum = jme_set_rx_csum, |
| 2687 | .set_tx_csum = jme_set_tx_csum, |
| 2688 | .set_tso = jme_set_tso, |
| 2689 | .set_sg = ethtool_op_set_sg, |
| 2690 | .nway_reset = jme_nway_reset, |
| 2691 | .get_eeprom_len = jme_get_eeprom_len, |
| 2692 | .get_eeprom = jme_get_eeprom, |
| 2693 | .set_eeprom = jme_set_eeprom, |
| 2694 | }; |
| 2695 | |
| 2696 | static int |
| 2697 | jme_pci_dma64(struct pci_dev *pdev) |
| 2698 | { |
Guo-Fu Tseng | 814c01d | 2009-02-27 17:59:44 +0000 | [diff] [blame] | 2699 | if (pdev->device == PCI_DEVICE_ID_JMICRON_JMC250 && |
Yang Hongyang | e930438 | 2009-04-13 14:40:14 -0700 | [diff] [blame] | 2700 | !pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) |
| 2701 | if (!pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64))) |
Guo-Fu Tseng | 814c01d | 2009-02-27 17:59:44 +0000 | [diff] [blame] | 2702 | return 1; |
| 2703 | |
| 2704 | if (pdev->device == PCI_DEVICE_ID_JMICRON_JMC250 && |
Yang Hongyang | e930438 | 2009-04-13 14:40:14 -0700 | [diff] [blame] | 2705 | !pci_set_dma_mask(pdev, DMA_BIT_MASK(40))) |
| 2706 | if (!pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(40))) |
Guo-Fu Tseng | 814c01d | 2009-02-27 17:59:44 +0000 | [diff] [blame] | 2707 | return 1; |
| 2708 | |
Yang Hongyang | 284901a | 2009-04-06 19:01:15 -0700 | [diff] [blame] | 2709 | if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) |
| 2710 | if (!pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 2711 | return 0; |
| 2712 | |
| 2713 | return -1; |
| 2714 | } |
| 2715 | |
| 2716 | static inline void |
| 2717 | jme_phy_init(struct jme_adapter *jme) |
| 2718 | { |
| 2719 | u16 reg26; |
| 2720 | |
| 2721 | reg26 = jme_mdio_read(jme->dev, jme->mii_if.phy_id, 26); |
| 2722 | jme_mdio_write(jme->dev, jme->mii_if.phy_id, 26, reg26 | 0x1000); |
| 2723 | } |
| 2724 | |
| 2725 | static inline void |
| 2726 | jme_check_hw_ver(struct jme_adapter *jme) |
| 2727 | { |
| 2728 | u32 chipmode; |
| 2729 | |
| 2730 | chipmode = jread32(jme, JME_CHIPMODE); |
| 2731 | |
| 2732 | jme->fpgaver = (chipmode & CM_FPGAVER_MASK) >> CM_FPGAVER_SHIFT; |
| 2733 | jme->chiprev = (chipmode & CM_CHIPREV_MASK) >> CM_CHIPREV_SHIFT; |
| 2734 | } |
| 2735 | |
Stephen Hemminger | e48714b | 2008-11-21 17:28:33 -0800 | [diff] [blame] | 2736 | static const struct net_device_ops jme_netdev_ops = { |
| 2737 | .ndo_open = jme_open, |
| 2738 | .ndo_stop = jme_close, |
| 2739 | .ndo_validate_addr = eth_validate_addr, |
Guo-Fu Tseng | 334fbbb | 2010-10-18 14:10:43 +0000 | [diff] [blame] | 2740 | .ndo_do_ioctl = jme_ioctl, |
Stephen Hemminger | e48714b | 2008-11-21 17:28:33 -0800 | [diff] [blame] | 2741 | .ndo_start_xmit = jme_start_xmit, |
| 2742 | .ndo_set_mac_address = jme_set_macaddr, |
| 2743 | .ndo_set_multicast_list = jme_set_multi, |
| 2744 | .ndo_change_mtu = jme_change_mtu, |
| 2745 | .ndo_tx_timeout = jme_tx_timeout, |
| 2746 | .ndo_vlan_rx_register = jme_vlan_rx_register, |
| 2747 | }; |
| 2748 | |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 2749 | static int __devinit |
| 2750 | jme_init_one(struct pci_dev *pdev, |
| 2751 | const struct pci_device_id *ent) |
| 2752 | { |
| 2753 | int rc = 0, using_dac, i; |
| 2754 | struct net_device *netdev; |
| 2755 | struct jme_adapter *jme; |
| 2756 | u16 bmcr, bmsr; |
| 2757 | u32 apmc; |
| 2758 | |
| 2759 | /* |
| 2760 | * set up PCI device basics |
| 2761 | */ |
| 2762 | rc = pci_enable_device(pdev); |
| 2763 | if (rc) { |
Joe Perches | 49d70c4 | 2010-09-04 22:21:05 +0000 | [diff] [blame] | 2764 | pr_err("Cannot enable PCI device\n"); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 2765 | goto err_out; |
| 2766 | } |
| 2767 | |
| 2768 | using_dac = jme_pci_dma64(pdev); |
| 2769 | if (using_dac < 0) { |
Joe Perches | 49d70c4 | 2010-09-04 22:21:05 +0000 | [diff] [blame] | 2770 | pr_err("Cannot set PCI DMA Mask\n"); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 2771 | rc = -EIO; |
| 2772 | goto err_out_disable_pdev; |
| 2773 | } |
| 2774 | |
| 2775 | if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { |
Joe Perches | 49d70c4 | 2010-09-04 22:21:05 +0000 | [diff] [blame] | 2776 | pr_err("No PCI resource region found\n"); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 2777 | rc = -ENOMEM; |
| 2778 | goto err_out_disable_pdev; |
| 2779 | } |
| 2780 | |
| 2781 | rc = pci_request_regions(pdev, DRV_NAME); |
| 2782 | if (rc) { |
Joe Perches | 49d70c4 | 2010-09-04 22:21:05 +0000 | [diff] [blame] | 2783 | pr_err("Cannot obtain PCI resource region\n"); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 2784 | goto err_out_disable_pdev; |
| 2785 | } |
| 2786 | |
| 2787 | pci_set_master(pdev); |
| 2788 | |
| 2789 | /* |
| 2790 | * alloc and init net device |
| 2791 | */ |
| 2792 | netdev = alloc_etherdev(sizeof(*jme)); |
| 2793 | if (!netdev) { |
Joe Perches | 49d70c4 | 2010-09-04 22:21:05 +0000 | [diff] [blame] | 2794 | pr_err("Cannot allocate netdev structure\n"); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 2795 | rc = -ENOMEM; |
| 2796 | goto err_out_release_regions; |
| 2797 | } |
Stephen Hemminger | e48714b | 2008-11-21 17:28:33 -0800 | [diff] [blame] | 2798 | netdev->netdev_ops = &jme_netdev_ops; |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 2799 | netdev->ethtool_ops = &jme_ethtool_ops; |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 2800 | netdev->watchdog_timeo = TX_TIMEOUT; |
Michał Mirosław | 7903264 | 2010-11-30 06:38:00 +0000 | [diff] [blame] | 2801 | netdev->features = NETIF_F_IP_CSUM | |
| 2802 | NETIF_F_IPV6_CSUM | |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 2803 | NETIF_F_SG | |
| 2804 | NETIF_F_TSO | |
| 2805 | NETIF_F_TSO6 | |
| 2806 | NETIF_F_HW_VLAN_TX | |
| 2807 | NETIF_F_HW_VLAN_RX; |
| 2808 | if (using_dac) |
| 2809 | netdev->features |= NETIF_F_HIGHDMA; |
| 2810 | |
| 2811 | SET_NETDEV_DEV(netdev, &pdev->dev); |
| 2812 | pci_set_drvdata(pdev, netdev); |
| 2813 | |
| 2814 | /* |
| 2815 | * init adapter info |
| 2816 | */ |
| 2817 | jme = netdev_priv(netdev); |
| 2818 | jme->pdev = pdev; |
| 2819 | jme->dev = netdev; |
| 2820 | jme->jme_rx = netif_rx; |
| 2821 | jme->jme_vlan_rx = vlan_hwaccel_rx; |
| 2822 | jme->old_mtu = netdev->mtu = 1500; |
| 2823 | jme->phylink = 0; |
| 2824 | jme->tx_ring_size = 1 << 10; |
| 2825 | jme->tx_ring_mask = jme->tx_ring_size - 1; |
| 2826 | jme->tx_wake_threshold = 1 << 9; |
| 2827 | jme->rx_ring_size = 1 << 9; |
| 2828 | jme->rx_ring_mask = jme->rx_ring_size - 1; |
| 2829 | jme->msg_enable = JME_DEF_MSG_ENABLE; |
| 2830 | jme->regs = ioremap(pci_resource_start(pdev, 0), |
| 2831 | pci_resource_len(pdev, 0)); |
| 2832 | if (!(jme->regs)) { |
Joe Perches | 49d70c4 | 2010-09-04 22:21:05 +0000 | [diff] [blame] | 2833 | pr_err("Mapping PCI resource region error\n"); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 2834 | rc = -ENOMEM; |
| 2835 | goto err_out_free_netdev; |
| 2836 | } |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 2837 | |
| 2838 | if (no_pseudohp) { |
| 2839 | apmc = jread32(jme, JME_APMC) & ~JME_APMC_PSEUDO_HP_EN; |
| 2840 | jwrite32(jme, JME_APMC, apmc); |
| 2841 | } else if (force_pseudohp) { |
| 2842 | apmc = jread32(jme, JME_APMC) | JME_APMC_PSEUDO_HP_EN; |
| 2843 | jwrite32(jme, JME_APMC, apmc); |
| 2844 | } |
| 2845 | |
| 2846 | NETIF_NAPI_SET(netdev, &jme->napi, jme_poll, jme->rx_ring_size >> 2) |
| 2847 | |
| 2848 | spin_lock_init(&jme->phy_lock); |
| 2849 | spin_lock_init(&jme->macaddr_lock); |
| 2850 | spin_lock_init(&jme->rxmcs_lock); |
| 2851 | |
| 2852 | atomic_set(&jme->link_changing, 1); |
| 2853 | atomic_set(&jme->rx_cleaning, 1); |
| 2854 | atomic_set(&jme->tx_cleaning, 1); |
| 2855 | atomic_set(&jme->rx_empty, 1); |
| 2856 | |
| 2857 | tasklet_init(&jme->pcc_task, |
Joe Perches | 164165d | 2009-11-19 09:30:10 +0000 | [diff] [blame] | 2858 | jme_pcc_tasklet, |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 2859 | (unsigned long) jme); |
| 2860 | tasklet_init(&jme->linkch_task, |
Joe Perches | 164165d | 2009-11-19 09:30:10 +0000 | [diff] [blame] | 2861 | jme_link_change_tasklet, |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 2862 | (unsigned long) jme); |
| 2863 | tasklet_init(&jme->txclean_task, |
Joe Perches | 164165d | 2009-11-19 09:30:10 +0000 | [diff] [blame] | 2864 | jme_tx_clean_tasklet, |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 2865 | (unsigned long) jme); |
| 2866 | tasklet_init(&jme->rxclean_task, |
Joe Perches | 164165d | 2009-11-19 09:30:10 +0000 | [diff] [blame] | 2867 | jme_rx_clean_tasklet, |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 2868 | (unsigned long) jme); |
| 2869 | tasklet_init(&jme->rxempty_task, |
Joe Perches | 164165d | 2009-11-19 09:30:10 +0000 | [diff] [blame] | 2870 | jme_rx_empty_tasklet, |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 2871 | (unsigned long) jme); |
Guo-Fu Tseng | 38ed0c2 | 2009-07-06 04:37:52 +0000 | [diff] [blame] | 2872 | tasklet_disable_nosync(&jme->linkch_task); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 2873 | tasklet_disable_nosync(&jme->txclean_task); |
| 2874 | tasklet_disable_nosync(&jme->rxclean_task); |
| 2875 | tasklet_disable_nosync(&jme->rxempty_task); |
| 2876 | jme->dpi.cur = PCC_P1; |
| 2877 | |
| 2878 | jme->reg_ghc = 0; |
| 2879 | jme->reg_rxcs = RXCS_DEFAULT; |
| 2880 | jme->reg_rxmcs = RXMCS_DEFAULT; |
| 2881 | jme->reg_txpfc = 0; |
| 2882 | jme->reg_pmcs = PMCS_MFEN; |
| 2883 | set_bit(JME_FLAG_TXCSUM, &jme->flags); |
| 2884 | set_bit(JME_FLAG_TSO, &jme->flags); |
| 2885 | |
| 2886 | /* |
| 2887 | * Get Max Read Req Size from PCI Config Space |
| 2888 | */ |
| 2889 | pci_read_config_byte(pdev, PCI_DCSR_MRRS, &jme->mrrs); |
| 2890 | jme->mrrs &= PCI_DCSR_MRRS_MASK; |
| 2891 | switch (jme->mrrs) { |
| 2892 | case MRRS_128B: |
| 2893 | jme->reg_txcs = TXCS_DEFAULT | TXCS_DMASIZE_128B; |
| 2894 | break; |
| 2895 | case MRRS_256B: |
| 2896 | jme->reg_txcs = TXCS_DEFAULT | TXCS_DMASIZE_256B; |
| 2897 | break; |
| 2898 | default: |
| 2899 | jme->reg_txcs = TXCS_DEFAULT | TXCS_DMASIZE_512B; |
| 2900 | break; |
Joe Perches | ee289b6 | 2010-05-17 22:47:34 -0700 | [diff] [blame] | 2901 | } |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 2902 | |
| 2903 | /* |
| 2904 | * Must check before reset_mac_processor |
| 2905 | */ |
| 2906 | jme_check_hw_ver(jme); |
| 2907 | jme->mii_if.dev = netdev; |
| 2908 | if (jme->fpgaver) { |
| 2909 | jme->mii_if.phy_id = 0; |
| 2910 | for (i = 1 ; i < 32 ; ++i) { |
| 2911 | bmcr = jme_mdio_read(netdev, i, MII_BMCR); |
| 2912 | bmsr = jme_mdio_read(netdev, i, MII_BMSR); |
| 2913 | if (bmcr != 0xFFFFU && (bmcr != 0 || bmsr != 0)) { |
| 2914 | jme->mii_if.phy_id = i; |
| 2915 | break; |
| 2916 | } |
| 2917 | } |
| 2918 | |
| 2919 | if (!jme->mii_if.phy_id) { |
| 2920 | rc = -EIO; |
Joe Perches | 49d70c4 | 2010-09-04 22:21:05 +0000 | [diff] [blame] | 2921 | pr_err("Can not find phy_id\n"); |
| 2922 | goto err_out_unmap; |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 2923 | } |
| 2924 | |
| 2925 | jme->reg_ghc |= GHC_LINK_POLL; |
| 2926 | } else { |
| 2927 | jme->mii_if.phy_id = 1; |
| 2928 | } |
| 2929 | if (pdev->device == PCI_DEVICE_ID_JMICRON_JMC250) |
| 2930 | jme->mii_if.supports_gmii = true; |
| 2931 | else |
| 2932 | jme->mii_if.supports_gmii = false; |
Guo-Fu Tseng | 334fbbb | 2010-10-18 14:10:43 +0000 | [diff] [blame] | 2933 | jme->mii_if.phy_id_mask = 0x1F; |
| 2934 | jme->mii_if.reg_num_mask = 0x1F; |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 2935 | jme->mii_if.mdio_read = jme_mdio_read; |
| 2936 | jme->mii_if.mdio_write = jme_mdio_write; |
| 2937 | |
| 2938 | jme_clear_pm(jme); |
| 2939 | jme_set_phyfifoa(jme); |
| 2940 | pci_read_config_byte(pdev, PCI_REVISION_ID, &jme->rev); |
| 2941 | if (!jme->fpgaver) |
| 2942 | jme_phy_init(jme); |
| 2943 | jme_phy_off(jme); |
| 2944 | |
| 2945 | /* |
| 2946 | * Reset MAC processor and reload EEPROM for MAC Address |
| 2947 | */ |
| 2948 | jme_reset_mac_processor(jme); |
| 2949 | rc = jme_reload_eeprom(jme); |
| 2950 | if (rc) { |
Joe Perches | 49d70c4 | 2010-09-04 22:21:05 +0000 | [diff] [blame] | 2951 | pr_err("Reload eeprom for reading MAC Address error\n"); |
Guo-Fu Tseng | d1dfa1d | 2009-07-06 04:40:38 +0000 | [diff] [blame] | 2952 | goto err_out_unmap; |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 2953 | } |
| 2954 | jme_load_macaddr(netdev); |
| 2955 | |
| 2956 | /* |
| 2957 | * Tell stack that we are not ready to work until open() |
| 2958 | */ |
| 2959 | netif_carrier_off(netdev); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 2960 | |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 2961 | rc = register_netdev(netdev); |
| 2962 | if (rc) { |
Joe Perches | 49d70c4 | 2010-09-04 22:21:05 +0000 | [diff] [blame] | 2963 | pr_err("Cannot register net device\n"); |
Guo-Fu Tseng | d1dfa1d | 2009-07-06 04:40:38 +0000 | [diff] [blame] | 2964 | goto err_out_unmap; |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 2965 | } |
| 2966 | |
Joe Perches | f8502ce | 2010-02-09 11:49:51 +0000 | [diff] [blame] | 2967 | netif_info(jme, probe, jme->dev, "%s%s ver:%x rev:%x macaddr:%pM\n", |
| 2968 | (jme->pdev->device == PCI_DEVICE_ID_JMICRON_JMC250) ? |
| 2969 | "JMC250 Gigabit Ethernet" : |
| 2970 | (jme->pdev->device == PCI_DEVICE_ID_JMICRON_JMC260) ? |
| 2971 | "JMC260 Fast Ethernet" : "Unknown", |
| 2972 | (jme->fpgaver != 0) ? " (FPGA)" : "", |
| 2973 | (jme->fpgaver != 0) ? jme->fpgaver : jme->chiprev, |
| 2974 | jme->rev, netdev->dev_addr); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 2975 | |
| 2976 | return 0; |
| 2977 | |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 2978 | err_out_unmap: |
| 2979 | iounmap(jme->regs); |
| 2980 | err_out_free_netdev: |
| 2981 | pci_set_drvdata(pdev, NULL); |
| 2982 | free_netdev(netdev); |
| 2983 | err_out_release_regions: |
| 2984 | pci_release_regions(pdev); |
| 2985 | err_out_disable_pdev: |
| 2986 | pci_disable_device(pdev); |
| 2987 | err_out: |
| 2988 | return rc; |
| 2989 | } |
| 2990 | |
| 2991 | static void __devexit |
| 2992 | jme_remove_one(struct pci_dev *pdev) |
| 2993 | { |
| 2994 | struct net_device *netdev = pci_get_drvdata(pdev); |
| 2995 | struct jme_adapter *jme = netdev_priv(netdev); |
| 2996 | |
| 2997 | unregister_netdev(netdev); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 2998 | iounmap(jme->regs); |
| 2999 | pci_set_drvdata(pdev, NULL); |
| 3000 | free_netdev(netdev); |
| 3001 | pci_release_regions(pdev); |
| 3002 | pci_disable_device(pdev); |
| 3003 | |
| 3004 | } |
| 3005 | |
Guo-Fu Tseng | 1c55781 | 2010-10-24 16:18:25 -0700 | [diff] [blame] | 3006 | static void |
| 3007 | jme_shutdown(struct pci_dev *pdev) |
| 3008 | { |
| 3009 | struct net_device *netdev = pci_get_drvdata(pdev); |
| 3010 | struct jme_adapter *jme = netdev_priv(netdev); |
| 3011 | |
| 3012 | jme_powersave_phy(jme); |
| 3013 | pci_pme_active(pdev, true); |
| 3014 | } |
| 3015 | |
David S. Miller | 724f880 | 2008-10-08 19:54:31 -0700 | [diff] [blame] | 3016 | #ifdef CONFIG_PM |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 3017 | static int |
| 3018 | jme_suspend(struct pci_dev *pdev, pm_message_t state) |
| 3019 | { |
| 3020 | struct net_device *netdev = pci_get_drvdata(pdev); |
| 3021 | struct jme_adapter *jme = netdev_priv(netdev); |
| 3022 | |
| 3023 | atomic_dec(&jme->link_changing); |
| 3024 | |
| 3025 | netif_device_detach(netdev); |
| 3026 | netif_stop_queue(netdev); |
| 3027 | jme_stop_irq(jme); |
| 3028 | |
| 3029 | tasklet_disable(&jme->txclean_task); |
| 3030 | tasklet_disable(&jme->rxclean_task); |
| 3031 | tasklet_disable(&jme->rxempty_task); |
| 3032 | |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 3033 | if (netif_carrier_ok(netdev)) { |
| 3034 | if (test_bit(JME_FLAG_POLL, &jme->flags)) |
| 3035 | jme_polling_mode(jme); |
| 3036 | |
| 3037 | jme_stop_pcc_timer(jme); |
| 3038 | jme_reset_ghc_speed(jme); |
| 3039 | jme_disable_rx_engine(jme); |
| 3040 | jme_disable_tx_engine(jme); |
| 3041 | jme_reset_mac_processor(jme); |
| 3042 | jme_free_rx_resources(jme); |
| 3043 | jme_free_tx_resources(jme); |
| 3044 | netif_carrier_off(netdev); |
| 3045 | jme->phylink = 0; |
| 3046 | } |
| 3047 | |
| 3048 | tasklet_enable(&jme->txclean_task); |
| 3049 | tasklet_hi_enable(&jme->rxclean_task); |
| 3050 | tasklet_hi_enable(&jme->rxempty_task); |
| 3051 | |
| 3052 | pci_save_state(pdev); |
Guo-Fu Tseng | 1c55781 | 2010-10-24 16:18:25 -0700 | [diff] [blame] | 3053 | jme_powersave_phy(jme); |
| 3054 | pci_enable_wake(jme->pdev, PCI_D3hot, true); |
| 3055 | pci_set_power_state(pdev, PCI_D3hot); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 3056 | |
| 3057 | return 0; |
| 3058 | } |
| 3059 | |
| 3060 | static int |
| 3061 | jme_resume(struct pci_dev *pdev) |
| 3062 | { |
| 3063 | struct net_device *netdev = pci_get_drvdata(pdev); |
| 3064 | struct jme_adapter *jme = netdev_priv(netdev); |
| 3065 | |
| 3066 | jme_clear_pm(jme); |
| 3067 | pci_restore_state(pdev); |
| 3068 | |
Guo-Fu Tseng | c8a8684 | 2010-10-18 14:10:40 +0000 | [diff] [blame] | 3069 | if (test_bit(JME_FLAG_SSET, &jme->flags)) { |
| 3070 | jme_phy_on(jme); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 3071 | jme_set_settings(netdev, &jme->old_ecmd); |
Guo-Fu Tseng | c8a8684 | 2010-10-18 14:10:40 +0000 | [diff] [blame] | 3072 | } else { |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 3073 | jme_reset_phy_processor(jme); |
Guo-Fu Tseng | c8a8684 | 2010-10-18 14:10:40 +0000 | [diff] [blame] | 3074 | } |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 3075 | |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 3076 | jme_start_irq(jme); |
| 3077 | netif_device_attach(netdev); |
| 3078 | |
| 3079 | atomic_inc(&jme->link_changing); |
| 3080 | |
| 3081 | jme_reset_link(jme); |
| 3082 | |
| 3083 | return 0; |
| 3084 | } |
David S. Miller | 724f880 | 2008-10-08 19:54:31 -0700 | [diff] [blame] | 3085 | #endif |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 3086 | |
Alexey Dobriyan | a3aa188 | 2010-01-07 11:58:11 +0000 | [diff] [blame] | 3087 | static DEFINE_PCI_DEVICE_TABLE(jme_pci_tbl) = { |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 3088 | { PCI_VDEVICE(JMICRON, PCI_DEVICE_ID_JMICRON_JMC250) }, |
| 3089 | { PCI_VDEVICE(JMICRON, PCI_DEVICE_ID_JMICRON_JMC260) }, |
| 3090 | { } |
| 3091 | }; |
| 3092 | |
| 3093 | static struct pci_driver jme_driver = { |
| 3094 | .name = DRV_NAME, |
| 3095 | .id_table = jme_pci_tbl, |
| 3096 | .probe = jme_init_one, |
| 3097 | .remove = __devexit_p(jme_remove_one), |
| 3098 | #ifdef CONFIG_PM |
| 3099 | .suspend = jme_suspend, |
| 3100 | .resume = jme_resume, |
| 3101 | #endif /* CONFIG_PM */ |
Guo-Fu Tseng | 1c55781 | 2010-10-24 16:18:25 -0700 | [diff] [blame] | 3102 | .shutdown = jme_shutdown, |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 3103 | }; |
| 3104 | |
| 3105 | static int __init |
| 3106 | jme_init_module(void) |
| 3107 | { |
Joe Perches | 49d70c4 | 2010-09-04 22:21:05 +0000 | [diff] [blame] | 3108 | pr_info("JMicron JMC2XX ethernet driver version %s\n", DRV_VERSION); |
Guo-Fu Tseng | 9525223 | 2008-09-16 01:00:11 +0800 | [diff] [blame] | 3109 | return pci_register_driver(&jme_driver); |
| 3110 | } |
| 3111 | |
| 3112 | static void __exit |
| 3113 | jme_cleanup_module(void) |
| 3114 | { |
| 3115 | pci_unregister_driver(&jme_driver); |
| 3116 | } |
| 3117 | |
| 3118 | module_init(jme_init_module); |
| 3119 | module_exit(jme_cleanup_module); |
| 3120 | |
| 3121 | MODULE_AUTHOR("Guo-Fu Tseng <cooldavid@cooldavid.org>"); |
| 3122 | MODULE_DESCRIPTION("JMicron JMC2x0 PCI Express Ethernet driver"); |
| 3123 | MODULE_LICENSE("GPL"); |
| 3124 | MODULE_VERSION(DRV_VERSION); |
| 3125 | MODULE_DEVICE_TABLE(pci, jme_pci_tbl); |
| 3126 | |