Divy Le Ray | 4d22de3 | 2007-01-18 22:04:14 -0500 | [diff] [blame] | 1 | /* |
| 2 | * This file is part of the Chelsio T3 Ethernet driver for Linux. |
| 3 | * |
| 4 | * Copyright (C) 2003-2006 Chelsio Communications. All rights reserved. |
| 5 | * |
| 6 | * This program is distributed in the hope that it will be useful, but WITHOUT |
| 7 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 8 | * FITNESS FOR A PARTICULAR PURPOSE. See the LICENSE file included in this |
| 9 | * release for licensing terms and conditions. |
| 10 | */ |
| 11 | |
| 12 | #include <linux/module.h> |
| 13 | #include <linux/moduleparam.h> |
| 14 | #include <linux/init.h> |
| 15 | #include <linux/pci.h> |
| 16 | #include <linux/dma-mapping.h> |
| 17 | #include <linux/netdevice.h> |
| 18 | #include <linux/etherdevice.h> |
| 19 | #include <linux/if_vlan.h> |
| 20 | #include <linux/mii.h> |
| 21 | #include <linux/sockios.h> |
| 22 | #include <linux/workqueue.h> |
| 23 | #include <linux/proc_fs.h> |
| 24 | #include <linux/rtnetlink.h> |
| 25 | #include <asm/uaccess.h> |
| 26 | |
| 27 | #include "common.h" |
| 28 | #include "cxgb3_ioctl.h" |
| 29 | #include "regs.h" |
| 30 | #include "cxgb3_offload.h" |
| 31 | #include "version.h" |
| 32 | |
| 33 | #include "cxgb3_ctl_defs.h" |
| 34 | #include "t3_cpl.h" |
| 35 | #include "firmware_exports.h" |
| 36 | |
| 37 | enum { |
| 38 | MAX_TXQ_ENTRIES = 16384, |
| 39 | MAX_CTRL_TXQ_ENTRIES = 1024, |
| 40 | MAX_RSPQ_ENTRIES = 16384, |
| 41 | MAX_RX_BUFFERS = 16384, |
| 42 | MAX_RX_JUMBO_BUFFERS = 16384, |
| 43 | MIN_TXQ_ENTRIES = 4, |
| 44 | MIN_CTRL_TXQ_ENTRIES = 4, |
| 45 | MIN_RSPQ_ENTRIES = 32, |
| 46 | MIN_FL_ENTRIES = 32 |
| 47 | }; |
| 48 | |
| 49 | #define PORT_MASK ((1 << MAX_NPORTS) - 1) |
| 50 | |
| 51 | #define DFLT_MSG_ENABLE (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK | \ |
| 52 | NETIF_MSG_TIMER | NETIF_MSG_IFDOWN | NETIF_MSG_IFUP |\ |
| 53 | NETIF_MSG_RX_ERR | NETIF_MSG_TX_ERR) |
| 54 | |
| 55 | #define EEPROM_MAGIC 0x38E2F10C |
| 56 | |
| 57 | #define to_net_dev(class) container_of(class, struct net_device, class_dev) |
| 58 | |
| 59 | #define CH_DEVICE(devid, ssid, idx) \ |
| 60 | { PCI_VENDOR_ID_CHELSIO, devid, PCI_ANY_ID, ssid, 0, 0, idx } |
| 61 | |
| 62 | static const struct pci_device_id cxgb3_pci_tbl[] = { |
| 63 | CH_DEVICE(0x20, 1, 0), /* PE9000 */ |
| 64 | CH_DEVICE(0x21, 1, 1), /* T302E */ |
| 65 | CH_DEVICE(0x22, 1, 2), /* T310E */ |
| 66 | CH_DEVICE(0x23, 1, 3), /* T320X */ |
| 67 | CH_DEVICE(0x24, 1, 1), /* T302X */ |
| 68 | CH_DEVICE(0x25, 1, 3), /* T320E */ |
| 69 | CH_DEVICE(0x26, 1, 2), /* T310X */ |
| 70 | CH_DEVICE(0x30, 1, 2), /* T3B10 */ |
| 71 | CH_DEVICE(0x31, 1, 3), /* T3B20 */ |
| 72 | CH_DEVICE(0x32, 1, 1), /* T3B02 */ |
| 73 | {0,} |
| 74 | }; |
| 75 | |
| 76 | MODULE_DESCRIPTION(DRV_DESC); |
| 77 | MODULE_AUTHOR("Chelsio Communications"); |
| 78 | MODULE_LICENSE("GPL"); |
| 79 | MODULE_VERSION(DRV_VERSION); |
| 80 | MODULE_DEVICE_TABLE(pci, cxgb3_pci_tbl); |
| 81 | |
| 82 | static int dflt_msg_enable = DFLT_MSG_ENABLE; |
| 83 | |
| 84 | module_param(dflt_msg_enable, int, 0644); |
| 85 | MODULE_PARM_DESC(dflt_msg_enable, "Chelsio T3 default message enable bitmap"); |
| 86 | |
| 87 | /* |
| 88 | * The driver uses the best interrupt scheme available on a platform in the |
| 89 | * order MSI-X, MSI, legacy pin interrupts. This parameter determines which |
| 90 | * of these schemes the driver may consider as follows: |
| 91 | * |
| 92 | * msi = 2: choose from among all three options |
| 93 | * msi = 1: only consider MSI and pin interrupts |
| 94 | * msi = 0: force pin interrupts |
| 95 | */ |
| 96 | static int msi = 2; |
| 97 | |
| 98 | module_param(msi, int, 0644); |
| 99 | MODULE_PARM_DESC(msi, "whether to use MSI or MSI-X"); |
| 100 | |
| 101 | /* |
| 102 | * The driver enables offload as a default. |
| 103 | * To disable it, use ofld_disable = 1. |
| 104 | */ |
| 105 | |
| 106 | static int ofld_disable = 0; |
| 107 | |
| 108 | module_param(ofld_disable, int, 0644); |
| 109 | MODULE_PARM_DESC(ofld_disable, "whether to enable offload at init time or not"); |
| 110 | |
| 111 | /* |
| 112 | * We have work elements that we need to cancel when an interface is taken |
| 113 | * down. Normally the work elements would be executed by keventd but that |
| 114 | * can deadlock because of linkwatch. If our close method takes the rtnl |
| 115 | * lock and linkwatch is ahead of our work elements in keventd, linkwatch |
| 116 | * will block keventd as it needs the rtnl lock, and we'll deadlock waiting |
| 117 | * for our work to complete. Get our own work queue to solve this. |
| 118 | */ |
| 119 | static struct workqueue_struct *cxgb3_wq; |
| 120 | |
| 121 | /** |
| 122 | * link_report - show link status and link speed/duplex |
| 123 | * @p: the port whose settings are to be reported |
| 124 | * |
| 125 | * Shows the link status, speed, and duplex of a port. |
| 126 | */ |
| 127 | static void link_report(struct net_device *dev) |
| 128 | { |
| 129 | if (!netif_carrier_ok(dev)) |
| 130 | printk(KERN_INFO "%s: link down\n", dev->name); |
| 131 | else { |
| 132 | const char *s = "10Mbps"; |
| 133 | const struct port_info *p = netdev_priv(dev); |
| 134 | |
| 135 | switch (p->link_config.speed) { |
| 136 | case SPEED_10000: |
| 137 | s = "10Gbps"; |
| 138 | break; |
| 139 | case SPEED_1000: |
| 140 | s = "1000Mbps"; |
| 141 | break; |
| 142 | case SPEED_100: |
| 143 | s = "100Mbps"; |
| 144 | break; |
| 145 | } |
| 146 | |
| 147 | printk(KERN_INFO "%s: link up, %s, %s-duplex\n", dev->name, s, |
| 148 | p->link_config.duplex == DUPLEX_FULL ? "full" : "half"); |
| 149 | } |
| 150 | } |
| 151 | |
| 152 | /** |
| 153 | * t3_os_link_changed - handle link status changes |
| 154 | * @adapter: the adapter associated with the link change |
| 155 | * @port_id: the port index whose limk status has changed |
| 156 | * @link_stat: the new status of the link |
| 157 | * @speed: the new speed setting |
| 158 | * @duplex: the new duplex setting |
| 159 | * @pause: the new flow-control setting |
| 160 | * |
| 161 | * This is the OS-dependent handler for link status changes. The OS |
| 162 | * neutral handler takes care of most of the processing for these events, |
| 163 | * then calls this handler for any OS-specific processing. |
| 164 | */ |
| 165 | void t3_os_link_changed(struct adapter *adapter, int port_id, int link_stat, |
| 166 | int speed, int duplex, int pause) |
| 167 | { |
| 168 | struct net_device *dev = adapter->port[port_id]; |
| 169 | |
| 170 | /* Skip changes from disabled ports. */ |
| 171 | if (!netif_running(dev)) |
| 172 | return; |
| 173 | |
| 174 | if (link_stat != netif_carrier_ok(dev)) { |
| 175 | if (link_stat) |
| 176 | netif_carrier_on(dev); |
| 177 | else |
| 178 | netif_carrier_off(dev); |
| 179 | link_report(dev); |
| 180 | } |
| 181 | } |
| 182 | |
| 183 | static void cxgb_set_rxmode(struct net_device *dev) |
| 184 | { |
| 185 | struct t3_rx_mode rm; |
| 186 | struct port_info *pi = netdev_priv(dev); |
| 187 | |
| 188 | init_rx_mode(&rm, dev, dev->mc_list); |
| 189 | t3_mac_set_rx_mode(&pi->mac, &rm); |
| 190 | } |
| 191 | |
| 192 | /** |
| 193 | * link_start - enable a port |
| 194 | * @dev: the device to enable |
| 195 | * |
| 196 | * Performs the MAC and PHY actions needed to enable a port. |
| 197 | */ |
| 198 | static void link_start(struct net_device *dev) |
| 199 | { |
| 200 | struct t3_rx_mode rm; |
| 201 | struct port_info *pi = netdev_priv(dev); |
| 202 | struct cmac *mac = &pi->mac; |
| 203 | |
| 204 | init_rx_mode(&rm, dev, dev->mc_list); |
| 205 | t3_mac_reset(mac); |
| 206 | t3_mac_set_mtu(mac, dev->mtu); |
| 207 | t3_mac_set_address(mac, 0, dev->dev_addr); |
| 208 | t3_mac_set_rx_mode(mac, &rm); |
| 209 | t3_link_start(&pi->phy, mac, &pi->link_config); |
| 210 | t3_mac_enable(mac, MAC_DIRECTION_RX | MAC_DIRECTION_TX); |
| 211 | } |
| 212 | |
| 213 | static inline void cxgb_disable_msi(struct adapter *adapter) |
| 214 | { |
| 215 | if (adapter->flags & USING_MSIX) { |
| 216 | pci_disable_msix(adapter->pdev); |
| 217 | adapter->flags &= ~USING_MSIX; |
| 218 | } else if (adapter->flags & USING_MSI) { |
| 219 | pci_disable_msi(adapter->pdev); |
| 220 | adapter->flags &= ~USING_MSI; |
| 221 | } |
| 222 | } |
| 223 | |
| 224 | /* |
| 225 | * Interrupt handler for asynchronous events used with MSI-X. |
| 226 | */ |
| 227 | static irqreturn_t t3_async_intr_handler(int irq, void *cookie) |
| 228 | { |
| 229 | t3_slow_intr_handler(cookie); |
| 230 | return IRQ_HANDLED; |
| 231 | } |
| 232 | |
| 233 | /* |
| 234 | * Name the MSI-X interrupts. |
| 235 | */ |
| 236 | static void name_msix_vecs(struct adapter *adap) |
| 237 | { |
| 238 | int i, j, msi_idx = 1, n = sizeof(adap->msix_info[0].desc) - 1; |
| 239 | |
| 240 | snprintf(adap->msix_info[0].desc, n, "%s", adap->name); |
| 241 | adap->msix_info[0].desc[n] = 0; |
| 242 | |
| 243 | for_each_port(adap, j) { |
| 244 | struct net_device *d = adap->port[j]; |
| 245 | const struct port_info *pi = netdev_priv(d); |
| 246 | |
| 247 | for (i = 0; i < pi->nqsets; i++, msi_idx++) { |
| 248 | snprintf(adap->msix_info[msi_idx].desc, n, |
| 249 | "%s (queue %d)", d->name, i); |
| 250 | adap->msix_info[msi_idx].desc[n] = 0; |
| 251 | } |
| 252 | } |
| 253 | } |
| 254 | |
| 255 | static int request_msix_data_irqs(struct adapter *adap) |
| 256 | { |
| 257 | int i, j, err, qidx = 0; |
| 258 | |
| 259 | for_each_port(adap, i) { |
| 260 | int nqsets = adap2pinfo(adap, i)->nqsets; |
| 261 | |
| 262 | for (j = 0; j < nqsets; ++j) { |
| 263 | err = request_irq(adap->msix_info[qidx + 1].vec, |
| 264 | t3_intr_handler(adap, |
| 265 | adap->sge.qs[qidx]. |
| 266 | rspq.polling), 0, |
| 267 | adap->msix_info[qidx + 1].desc, |
| 268 | &adap->sge.qs[qidx]); |
| 269 | if (err) { |
| 270 | while (--qidx >= 0) |
| 271 | free_irq(adap->msix_info[qidx + 1].vec, |
| 272 | &adap->sge.qs[qidx]); |
| 273 | return err; |
| 274 | } |
| 275 | qidx++; |
| 276 | } |
| 277 | } |
| 278 | return 0; |
| 279 | } |
| 280 | |
| 281 | /** |
| 282 | * setup_rss - configure RSS |
| 283 | * @adap: the adapter |
| 284 | * |
| 285 | * Sets up RSS to distribute packets to multiple receive queues. We |
| 286 | * configure the RSS CPU lookup table to distribute to the number of HW |
| 287 | * receive queues, and the response queue lookup table to narrow that |
| 288 | * down to the response queues actually configured for each port. |
| 289 | * We always configure the RSS mapping for two ports since the mapping |
| 290 | * table has plenty of entries. |
| 291 | */ |
| 292 | static void setup_rss(struct adapter *adap) |
| 293 | { |
| 294 | int i; |
| 295 | unsigned int nq0 = adap2pinfo(adap, 0)->nqsets; |
| 296 | unsigned int nq1 = adap->port[1] ? adap2pinfo(adap, 1)->nqsets : 1; |
| 297 | u8 cpus[SGE_QSETS + 1]; |
| 298 | u16 rspq_map[RSS_TABLE_SIZE]; |
| 299 | |
| 300 | for (i = 0; i < SGE_QSETS; ++i) |
| 301 | cpus[i] = i; |
| 302 | cpus[SGE_QSETS] = 0xff; /* terminator */ |
| 303 | |
| 304 | for (i = 0; i < RSS_TABLE_SIZE / 2; ++i) { |
| 305 | rspq_map[i] = i % nq0; |
| 306 | rspq_map[i + RSS_TABLE_SIZE / 2] = (i % nq1) + nq0; |
| 307 | } |
| 308 | |
| 309 | t3_config_rss(adap, F_RQFEEDBACKENABLE | F_TNLLKPEN | F_TNLMAPEN | |
| 310 | F_TNLPRTEN | F_TNL2TUPEN | F_TNL4TUPEN | |
| 311 | V_RRCPLCPUSIZE(6), cpus, rspq_map); |
| 312 | } |
| 313 | |
| 314 | /* |
| 315 | * If we have multiple receive queues per port serviced by NAPI we need one |
| 316 | * netdevice per queue as NAPI operates on netdevices. We already have one |
| 317 | * netdevice, namely the one associated with the interface, so we use dummy |
| 318 | * ones for any additional queues. Note that these netdevices exist purely |
| 319 | * so that NAPI has something to work with, they do not represent network |
| 320 | * ports and are not registered. |
| 321 | */ |
| 322 | static int init_dummy_netdevs(struct adapter *adap) |
| 323 | { |
| 324 | int i, j, dummy_idx = 0; |
| 325 | struct net_device *nd; |
| 326 | |
| 327 | for_each_port(adap, i) { |
| 328 | struct net_device *dev = adap->port[i]; |
| 329 | const struct port_info *pi = netdev_priv(dev); |
| 330 | |
| 331 | for (j = 0; j < pi->nqsets - 1; j++) { |
| 332 | if (!adap->dummy_netdev[dummy_idx]) { |
| 333 | nd = alloc_netdev(0, "", ether_setup); |
| 334 | if (!nd) |
| 335 | goto free_all; |
| 336 | |
| 337 | nd->priv = adap; |
| 338 | nd->weight = 64; |
| 339 | set_bit(__LINK_STATE_START, &nd->state); |
| 340 | adap->dummy_netdev[dummy_idx] = nd; |
| 341 | } |
| 342 | strcpy(adap->dummy_netdev[dummy_idx]->name, dev->name); |
| 343 | dummy_idx++; |
| 344 | } |
| 345 | } |
| 346 | return 0; |
| 347 | |
| 348 | free_all: |
| 349 | while (--dummy_idx >= 0) { |
| 350 | free_netdev(adap->dummy_netdev[dummy_idx]); |
| 351 | adap->dummy_netdev[dummy_idx] = NULL; |
| 352 | } |
| 353 | return -ENOMEM; |
| 354 | } |
| 355 | |
| 356 | /* |
| 357 | * Wait until all NAPI handlers are descheduled. This includes the handlers of |
| 358 | * both netdevices representing interfaces and the dummy ones for the extra |
| 359 | * queues. |
| 360 | */ |
| 361 | static void quiesce_rx(struct adapter *adap) |
| 362 | { |
| 363 | int i; |
| 364 | struct net_device *dev; |
| 365 | |
| 366 | for_each_port(adap, i) { |
| 367 | dev = adap->port[i]; |
| 368 | while (test_bit(__LINK_STATE_RX_SCHED, &dev->state)) |
| 369 | msleep(1); |
| 370 | } |
| 371 | |
| 372 | for (i = 0; i < ARRAY_SIZE(adap->dummy_netdev); i++) { |
| 373 | dev = adap->dummy_netdev[i]; |
| 374 | if (dev) |
| 375 | while (test_bit(__LINK_STATE_RX_SCHED, &dev->state)) |
| 376 | msleep(1); |
| 377 | } |
| 378 | } |
| 379 | |
| 380 | /** |
| 381 | * setup_sge_qsets - configure SGE Tx/Rx/response queues |
| 382 | * @adap: the adapter |
| 383 | * |
| 384 | * Determines how many sets of SGE queues to use and initializes them. |
| 385 | * We support multiple queue sets per port if we have MSI-X, otherwise |
| 386 | * just one queue set per port. |
| 387 | */ |
| 388 | static int setup_sge_qsets(struct adapter *adap) |
| 389 | { |
| 390 | int i, j, err, irq_idx = 0, qset_idx = 0, dummy_dev_idx = 0; |
| 391 | unsigned int ntxq = is_offload(adap) ? SGE_TXQ_PER_SET : 1; |
| 392 | |
| 393 | if (adap->params.rev > 0 && !(adap->flags & USING_MSI)) |
| 394 | irq_idx = -1; |
| 395 | |
| 396 | for_each_port(adap, i) { |
| 397 | struct net_device *dev = adap->port[i]; |
| 398 | const struct port_info *pi = netdev_priv(dev); |
| 399 | |
| 400 | for (j = 0; j < pi->nqsets; ++j, ++qset_idx) { |
| 401 | err = t3_sge_alloc_qset(adap, qset_idx, 1, |
| 402 | (adap->flags & USING_MSIX) ? qset_idx + 1 : |
| 403 | irq_idx, |
| 404 | &adap->params.sge.qset[qset_idx], ntxq, |
| 405 | j == 0 ? dev : |
| 406 | adap-> dummy_netdev[dummy_dev_idx++]); |
| 407 | if (err) { |
| 408 | t3_free_sge_resources(adap); |
| 409 | return err; |
| 410 | } |
| 411 | } |
| 412 | } |
| 413 | |
| 414 | return 0; |
| 415 | } |
| 416 | |
| 417 | static ssize_t attr_show(struct class_device *cd, char *buf, |
| 418 | ssize_t(*format) (struct adapter *, char *)) |
| 419 | { |
| 420 | ssize_t len; |
| 421 | struct adapter *adap = to_net_dev(cd)->priv; |
| 422 | |
| 423 | /* Synchronize with ioctls that may shut down the device */ |
| 424 | rtnl_lock(); |
| 425 | len = (*format) (adap, buf); |
| 426 | rtnl_unlock(); |
| 427 | return len; |
| 428 | } |
| 429 | |
| 430 | static ssize_t attr_store(struct class_device *cd, const char *buf, size_t len, |
| 431 | ssize_t(*set) (struct adapter *, unsigned int), |
| 432 | unsigned int min_val, unsigned int max_val) |
| 433 | { |
| 434 | char *endp; |
| 435 | ssize_t ret; |
| 436 | unsigned int val; |
| 437 | struct adapter *adap = to_net_dev(cd)->priv; |
| 438 | |
| 439 | if (!capable(CAP_NET_ADMIN)) |
| 440 | return -EPERM; |
| 441 | |
| 442 | val = simple_strtoul(buf, &endp, 0); |
| 443 | if (endp == buf || val < min_val || val > max_val) |
| 444 | return -EINVAL; |
| 445 | |
| 446 | rtnl_lock(); |
| 447 | ret = (*set) (adap, val); |
| 448 | if (!ret) |
| 449 | ret = len; |
| 450 | rtnl_unlock(); |
| 451 | return ret; |
| 452 | } |
| 453 | |
| 454 | #define CXGB3_SHOW(name, val_expr) \ |
| 455 | static ssize_t format_##name(struct adapter *adap, char *buf) \ |
| 456 | { \ |
| 457 | return sprintf(buf, "%u\n", val_expr); \ |
| 458 | } \ |
| 459 | static ssize_t show_##name(struct class_device *cd, char *buf) \ |
| 460 | { \ |
| 461 | return attr_show(cd, buf, format_##name); \ |
| 462 | } |
| 463 | |
| 464 | static ssize_t set_nfilters(struct adapter *adap, unsigned int val) |
| 465 | { |
| 466 | if (adap->flags & FULL_INIT_DONE) |
| 467 | return -EBUSY; |
| 468 | if (val && adap->params.rev == 0) |
| 469 | return -EINVAL; |
| 470 | if (val > t3_mc5_size(&adap->mc5) - adap->params.mc5.nservers) |
| 471 | return -EINVAL; |
| 472 | adap->params.mc5.nfilters = val; |
| 473 | return 0; |
| 474 | } |
| 475 | |
| 476 | static ssize_t store_nfilters(struct class_device *cd, const char *buf, |
| 477 | size_t len) |
| 478 | { |
| 479 | return attr_store(cd, buf, len, set_nfilters, 0, ~0); |
| 480 | } |
| 481 | |
| 482 | static ssize_t set_nservers(struct adapter *adap, unsigned int val) |
| 483 | { |
| 484 | if (adap->flags & FULL_INIT_DONE) |
| 485 | return -EBUSY; |
| 486 | if (val > t3_mc5_size(&adap->mc5) - adap->params.mc5.nfilters) |
| 487 | return -EINVAL; |
| 488 | adap->params.mc5.nservers = val; |
| 489 | return 0; |
| 490 | } |
| 491 | |
| 492 | static ssize_t store_nservers(struct class_device *cd, const char *buf, |
| 493 | size_t len) |
| 494 | { |
| 495 | return attr_store(cd, buf, len, set_nservers, 0, ~0); |
| 496 | } |
| 497 | |
| 498 | #define CXGB3_ATTR_R(name, val_expr) \ |
| 499 | CXGB3_SHOW(name, val_expr) \ |
| 500 | static CLASS_DEVICE_ATTR(name, S_IRUGO, show_##name, NULL) |
| 501 | |
| 502 | #define CXGB3_ATTR_RW(name, val_expr, store_method) \ |
| 503 | CXGB3_SHOW(name, val_expr) \ |
| 504 | static CLASS_DEVICE_ATTR(name, S_IRUGO | S_IWUSR, show_##name, store_method) |
| 505 | |
| 506 | CXGB3_ATTR_R(cam_size, t3_mc5_size(&adap->mc5)); |
| 507 | CXGB3_ATTR_RW(nfilters, adap->params.mc5.nfilters, store_nfilters); |
| 508 | CXGB3_ATTR_RW(nservers, adap->params.mc5.nservers, store_nservers); |
| 509 | |
| 510 | static struct attribute *cxgb3_attrs[] = { |
| 511 | &class_device_attr_cam_size.attr, |
| 512 | &class_device_attr_nfilters.attr, |
| 513 | &class_device_attr_nservers.attr, |
| 514 | NULL |
| 515 | }; |
| 516 | |
| 517 | static struct attribute_group cxgb3_attr_group = {.attrs = cxgb3_attrs }; |
| 518 | |
| 519 | static ssize_t tm_attr_show(struct class_device *cd, char *buf, int sched) |
| 520 | { |
| 521 | ssize_t len; |
| 522 | unsigned int v, addr, bpt, cpt; |
| 523 | struct adapter *adap = to_net_dev(cd)->priv; |
| 524 | |
| 525 | addr = A_TP_TX_MOD_Q1_Q0_RATE_LIMIT - sched / 2; |
| 526 | rtnl_lock(); |
| 527 | t3_write_reg(adap, A_TP_TM_PIO_ADDR, addr); |
| 528 | v = t3_read_reg(adap, A_TP_TM_PIO_DATA); |
| 529 | if (sched & 1) |
| 530 | v >>= 16; |
| 531 | bpt = (v >> 8) & 0xff; |
| 532 | cpt = v & 0xff; |
| 533 | if (!cpt) |
| 534 | len = sprintf(buf, "disabled\n"); |
| 535 | else { |
| 536 | v = (adap->params.vpd.cclk * 1000) / cpt; |
| 537 | len = sprintf(buf, "%u Kbps\n", (v * bpt) / 125); |
| 538 | } |
| 539 | rtnl_unlock(); |
| 540 | return len; |
| 541 | } |
| 542 | |
| 543 | static ssize_t tm_attr_store(struct class_device *cd, const char *buf, |
| 544 | size_t len, int sched) |
| 545 | { |
| 546 | char *endp; |
| 547 | ssize_t ret; |
| 548 | unsigned int val; |
| 549 | struct adapter *adap = to_net_dev(cd)->priv; |
| 550 | |
| 551 | if (!capable(CAP_NET_ADMIN)) |
| 552 | return -EPERM; |
| 553 | |
| 554 | val = simple_strtoul(buf, &endp, 0); |
| 555 | if (endp == buf || val > 10000000) |
| 556 | return -EINVAL; |
| 557 | |
| 558 | rtnl_lock(); |
| 559 | ret = t3_config_sched(adap, val, sched); |
| 560 | if (!ret) |
| 561 | ret = len; |
| 562 | rtnl_unlock(); |
| 563 | return ret; |
| 564 | } |
| 565 | |
| 566 | #define TM_ATTR(name, sched) \ |
| 567 | static ssize_t show_##name(struct class_device *cd, char *buf) \ |
| 568 | { \ |
| 569 | return tm_attr_show(cd, buf, sched); \ |
| 570 | } \ |
| 571 | static ssize_t store_##name(struct class_device *cd, const char *buf, size_t len) \ |
| 572 | { \ |
| 573 | return tm_attr_store(cd, buf, len, sched); \ |
| 574 | } \ |
| 575 | static CLASS_DEVICE_ATTR(name, S_IRUGO | S_IWUSR, show_##name, store_##name) |
| 576 | |
| 577 | TM_ATTR(sched0, 0); |
| 578 | TM_ATTR(sched1, 1); |
| 579 | TM_ATTR(sched2, 2); |
| 580 | TM_ATTR(sched3, 3); |
| 581 | TM_ATTR(sched4, 4); |
| 582 | TM_ATTR(sched5, 5); |
| 583 | TM_ATTR(sched6, 6); |
| 584 | TM_ATTR(sched7, 7); |
| 585 | |
| 586 | static struct attribute *offload_attrs[] = { |
| 587 | &class_device_attr_sched0.attr, |
| 588 | &class_device_attr_sched1.attr, |
| 589 | &class_device_attr_sched2.attr, |
| 590 | &class_device_attr_sched3.attr, |
| 591 | &class_device_attr_sched4.attr, |
| 592 | &class_device_attr_sched5.attr, |
| 593 | &class_device_attr_sched6.attr, |
| 594 | &class_device_attr_sched7.attr, |
| 595 | NULL |
| 596 | }; |
| 597 | |
| 598 | static struct attribute_group offload_attr_group = {.attrs = offload_attrs }; |
| 599 | |
| 600 | /* |
| 601 | * Sends an sk_buff to an offload queue driver |
| 602 | * after dealing with any active network taps. |
| 603 | */ |
| 604 | static inline int offload_tx(struct t3cdev *tdev, struct sk_buff *skb) |
| 605 | { |
| 606 | int ret; |
| 607 | |
| 608 | local_bh_disable(); |
| 609 | ret = t3_offload_tx(tdev, skb); |
| 610 | local_bh_enable(); |
| 611 | return ret; |
| 612 | } |
| 613 | |
| 614 | static int write_smt_entry(struct adapter *adapter, int idx) |
| 615 | { |
| 616 | struct cpl_smt_write_req *req; |
| 617 | struct sk_buff *skb = alloc_skb(sizeof(*req), GFP_KERNEL); |
| 618 | |
| 619 | if (!skb) |
| 620 | return -ENOMEM; |
| 621 | |
| 622 | req = (struct cpl_smt_write_req *)__skb_put(skb, sizeof(*req)); |
| 623 | req->wr.wr_hi = htonl(V_WR_OP(FW_WROPCODE_FORWARD)); |
| 624 | OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_SMT_WRITE_REQ, idx)); |
| 625 | req->mtu_idx = NMTUS - 1; /* should be 0 but there's a T3 bug */ |
| 626 | req->iff = idx; |
| 627 | memset(req->src_mac1, 0, sizeof(req->src_mac1)); |
| 628 | memcpy(req->src_mac0, adapter->port[idx]->dev_addr, ETH_ALEN); |
| 629 | skb->priority = 1; |
| 630 | offload_tx(&adapter->tdev, skb); |
| 631 | return 0; |
| 632 | } |
| 633 | |
| 634 | static int init_smt(struct adapter *adapter) |
| 635 | { |
| 636 | int i; |
| 637 | |
| 638 | for_each_port(adapter, i) |
| 639 | write_smt_entry(adapter, i); |
| 640 | return 0; |
| 641 | } |
| 642 | |
| 643 | static void init_port_mtus(struct adapter *adapter) |
| 644 | { |
| 645 | unsigned int mtus = adapter->port[0]->mtu; |
| 646 | |
| 647 | if (adapter->port[1]) |
| 648 | mtus |= adapter->port[1]->mtu << 16; |
| 649 | t3_write_reg(adapter, A_TP_MTU_PORT_TABLE, mtus); |
| 650 | } |
| 651 | |
| 652 | /** |
| 653 | * cxgb_up - enable the adapter |
| 654 | * @adapter: adapter being enabled |
| 655 | * |
| 656 | * Called when the first port is enabled, this function performs the |
| 657 | * actions necessary to make an adapter operational, such as completing |
| 658 | * the initialization of HW modules, and enabling interrupts. |
| 659 | * |
| 660 | * Must be called with the rtnl lock held. |
| 661 | */ |
| 662 | static int cxgb_up(struct adapter *adap) |
| 663 | { |
| 664 | int err = 0; |
| 665 | |
| 666 | if (!(adap->flags & FULL_INIT_DONE)) { |
| 667 | err = t3_check_fw_version(adap); |
Divy Le Ray | 4aac389 | 2007-01-30 19:43:45 -0800 | [diff] [blame^] | 668 | if (err) |
Divy Le Ray | 4d22de3 | 2007-01-18 22:04:14 -0500 | [diff] [blame] | 669 | goto out; |
Divy Le Ray | 4d22de3 | 2007-01-18 22:04:14 -0500 | [diff] [blame] | 670 | |
| 671 | err = init_dummy_netdevs(adap); |
| 672 | if (err) |
| 673 | goto out; |
| 674 | |
| 675 | err = t3_init_hw(adap, 0); |
| 676 | if (err) |
| 677 | goto out; |
| 678 | |
| 679 | err = setup_sge_qsets(adap); |
| 680 | if (err) |
| 681 | goto out; |
| 682 | |
| 683 | setup_rss(adap); |
| 684 | adap->flags |= FULL_INIT_DONE; |
| 685 | } |
| 686 | |
| 687 | t3_intr_clear(adap); |
| 688 | |
| 689 | if (adap->flags & USING_MSIX) { |
| 690 | name_msix_vecs(adap); |
| 691 | err = request_irq(adap->msix_info[0].vec, |
| 692 | t3_async_intr_handler, 0, |
| 693 | adap->msix_info[0].desc, adap); |
| 694 | if (err) |
| 695 | goto irq_err; |
| 696 | |
| 697 | if (request_msix_data_irqs(adap)) { |
| 698 | free_irq(adap->msix_info[0].vec, adap); |
| 699 | goto irq_err; |
| 700 | } |
| 701 | } else if ((err = request_irq(adap->pdev->irq, |
| 702 | t3_intr_handler(adap, |
| 703 | adap->sge.qs[0].rspq. |
| 704 | polling), |
| 705 | (adap->flags & USING_MSI) ? 0 : SA_SHIRQ, |
| 706 | adap->name, adap))) |
| 707 | goto irq_err; |
| 708 | |
| 709 | t3_sge_start(adap); |
| 710 | t3_intr_enable(adap); |
| 711 | out: |
| 712 | return err; |
| 713 | irq_err: |
| 714 | CH_ERR(adap, "request_irq failed, err %d\n", err); |
| 715 | goto out; |
| 716 | } |
| 717 | |
| 718 | /* |
| 719 | * Release resources when all the ports and offloading have been stopped. |
| 720 | */ |
| 721 | static void cxgb_down(struct adapter *adapter) |
| 722 | { |
| 723 | t3_sge_stop(adapter); |
| 724 | spin_lock_irq(&adapter->work_lock); /* sync with PHY intr task */ |
| 725 | t3_intr_disable(adapter); |
| 726 | spin_unlock_irq(&adapter->work_lock); |
| 727 | |
| 728 | if (adapter->flags & USING_MSIX) { |
| 729 | int i, n = 0; |
| 730 | |
| 731 | free_irq(adapter->msix_info[0].vec, adapter); |
| 732 | for_each_port(adapter, i) |
| 733 | n += adap2pinfo(adapter, i)->nqsets; |
| 734 | |
| 735 | for (i = 0; i < n; ++i) |
| 736 | free_irq(adapter->msix_info[i + 1].vec, |
| 737 | &adapter->sge.qs[i]); |
| 738 | } else |
| 739 | free_irq(adapter->pdev->irq, adapter); |
| 740 | |
| 741 | flush_workqueue(cxgb3_wq); /* wait for external IRQ handler */ |
| 742 | quiesce_rx(adapter); |
| 743 | } |
| 744 | |
| 745 | static void schedule_chk_task(struct adapter *adap) |
| 746 | { |
| 747 | unsigned int timeo; |
| 748 | |
| 749 | timeo = adap->params.linkpoll_period ? |
| 750 | (HZ * adap->params.linkpoll_period) / 10 : |
| 751 | adap->params.stats_update_period * HZ; |
| 752 | if (timeo) |
| 753 | queue_delayed_work(cxgb3_wq, &adap->adap_check_task, timeo); |
| 754 | } |
| 755 | |
| 756 | static int offload_open(struct net_device *dev) |
| 757 | { |
| 758 | struct adapter *adapter = dev->priv; |
| 759 | struct t3cdev *tdev = T3CDEV(dev); |
| 760 | int adap_up = adapter->open_device_map & PORT_MASK; |
| 761 | int err = 0; |
| 762 | |
| 763 | if (test_and_set_bit(OFFLOAD_DEVMAP_BIT, &adapter->open_device_map)) |
| 764 | return 0; |
| 765 | |
| 766 | if (!adap_up && (err = cxgb_up(adapter)) < 0) |
| 767 | return err; |
| 768 | |
| 769 | t3_tp_set_offload_mode(adapter, 1); |
| 770 | tdev->lldev = adapter->port[0]; |
| 771 | err = cxgb3_offload_activate(adapter); |
| 772 | if (err) |
| 773 | goto out; |
| 774 | |
| 775 | init_port_mtus(adapter); |
| 776 | t3_load_mtus(adapter, adapter->params.mtus, adapter->params.a_wnd, |
| 777 | adapter->params.b_wnd, |
| 778 | adapter->params.rev == 0 ? |
| 779 | adapter->port[0]->mtu : 0xffff); |
| 780 | init_smt(adapter); |
| 781 | |
| 782 | /* Never mind if the next step fails */ |
| 783 | sysfs_create_group(&tdev->lldev->class_dev.kobj, &offload_attr_group); |
| 784 | |
| 785 | /* Call back all registered clients */ |
| 786 | cxgb3_add_clients(tdev); |
| 787 | |
| 788 | out: |
| 789 | /* restore them in case the offload module has changed them */ |
| 790 | if (err) { |
| 791 | t3_tp_set_offload_mode(adapter, 0); |
| 792 | clear_bit(OFFLOAD_DEVMAP_BIT, &adapter->open_device_map); |
| 793 | cxgb3_set_dummy_ops(tdev); |
| 794 | } |
| 795 | return err; |
| 796 | } |
| 797 | |
| 798 | static int offload_close(struct t3cdev *tdev) |
| 799 | { |
| 800 | struct adapter *adapter = tdev2adap(tdev); |
| 801 | |
| 802 | if (!test_bit(OFFLOAD_DEVMAP_BIT, &adapter->open_device_map)) |
| 803 | return 0; |
| 804 | |
| 805 | /* Call back all registered clients */ |
| 806 | cxgb3_remove_clients(tdev); |
| 807 | |
| 808 | sysfs_remove_group(&tdev->lldev->class_dev.kobj, &offload_attr_group); |
| 809 | |
| 810 | tdev->lldev = NULL; |
| 811 | cxgb3_set_dummy_ops(tdev); |
| 812 | t3_tp_set_offload_mode(adapter, 0); |
| 813 | clear_bit(OFFLOAD_DEVMAP_BIT, &adapter->open_device_map); |
| 814 | |
| 815 | if (!adapter->open_device_map) |
| 816 | cxgb_down(adapter); |
| 817 | |
| 818 | cxgb3_offload_deactivate(adapter); |
| 819 | return 0; |
| 820 | } |
| 821 | |
| 822 | static int cxgb_open(struct net_device *dev) |
| 823 | { |
| 824 | int err; |
| 825 | struct adapter *adapter = dev->priv; |
| 826 | struct port_info *pi = netdev_priv(dev); |
| 827 | int other_ports = adapter->open_device_map & PORT_MASK; |
| 828 | |
| 829 | if (!adapter->open_device_map && (err = cxgb_up(adapter)) < 0) |
| 830 | return err; |
| 831 | |
| 832 | set_bit(pi->port_id, &adapter->open_device_map); |
| 833 | if (!ofld_disable) { |
| 834 | err = offload_open(dev); |
| 835 | if (err) |
| 836 | printk(KERN_WARNING |
| 837 | "Could not initialize offload capabilities\n"); |
| 838 | } |
| 839 | |
| 840 | link_start(dev); |
| 841 | t3_port_intr_enable(adapter, pi->port_id); |
| 842 | netif_start_queue(dev); |
| 843 | if (!other_ports) |
| 844 | schedule_chk_task(adapter); |
| 845 | |
| 846 | return 0; |
| 847 | } |
| 848 | |
| 849 | static int cxgb_close(struct net_device *dev) |
| 850 | { |
| 851 | struct adapter *adapter = dev->priv; |
| 852 | struct port_info *p = netdev_priv(dev); |
| 853 | |
| 854 | t3_port_intr_disable(adapter, p->port_id); |
| 855 | netif_stop_queue(dev); |
| 856 | p->phy.ops->power_down(&p->phy, 1); |
| 857 | netif_carrier_off(dev); |
| 858 | t3_mac_disable(&p->mac, MAC_DIRECTION_TX | MAC_DIRECTION_RX); |
| 859 | |
| 860 | spin_lock(&adapter->work_lock); /* sync with update task */ |
| 861 | clear_bit(p->port_id, &adapter->open_device_map); |
| 862 | spin_unlock(&adapter->work_lock); |
| 863 | |
| 864 | if (!(adapter->open_device_map & PORT_MASK)) |
| 865 | cancel_rearming_delayed_workqueue(cxgb3_wq, |
| 866 | &adapter->adap_check_task); |
| 867 | |
| 868 | if (!adapter->open_device_map) |
| 869 | cxgb_down(adapter); |
| 870 | |
| 871 | return 0; |
| 872 | } |
| 873 | |
| 874 | static struct net_device_stats *cxgb_get_stats(struct net_device *dev) |
| 875 | { |
| 876 | struct adapter *adapter = dev->priv; |
| 877 | struct port_info *p = netdev_priv(dev); |
| 878 | struct net_device_stats *ns = &p->netstats; |
| 879 | const struct mac_stats *pstats; |
| 880 | |
| 881 | spin_lock(&adapter->stats_lock); |
| 882 | pstats = t3_mac_update_stats(&p->mac); |
| 883 | spin_unlock(&adapter->stats_lock); |
| 884 | |
| 885 | ns->tx_bytes = pstats->tx_octets; |
| 886 | ns->tx_packets = pstats->tx_frames; |
| 887 | ns->rx_bytes = pstats->rx_octets; |
| 888 | ns->rx_packets = pstats->rx_frames; |
| 889 | ns->multicast = pstats->rx_mcast_frames; |
| 890 | |
| 891 | ns->tx_errors = pstats->tx_underrun; |
| 892 | ns->rx_errors = pstats->rx_symbol_errs + pstats->rx_fcs_errs + |
| 893 | pstats->rx_too_long + pstats->rx_jabber + pstats->rx_short + |
| 894 | pstats->rx_fifo_ovfl; |
| 895 | |
| 896 | /* detailed rx_errors */ |
| 897 | ns->rx_length_errors = pstats->rx_jabber + pstats->rx_too_long; |
| 898 | ns->rx_over_errors = 0; |
| 899 | ns->rx_crc_errors = pstats->rx_fcs_errs; |
| 900 | ns->rx_frame_errors = pstats->rx_symbol_errs; |
| 901 | ns->rx_fifo_errors = pstats->rx_fifo_ovfl; |
| 902 | ns->rx_missed_errors = pstats->rx_cong_drops; |
| 903 | |
| 904 | /* detailed tx_errors */ |
| 905 | ns->tx_aborted_errors = 0; |
| 906 | ns->tx_carrier_errors = 0; |
| 907 | ns->tx_fifo_errors = pstats->tx_underrun; |
| 908 | ns->tx_heartbeat_errors = 0; |
| 909 | ns->tx_window_errors = 0; |
| 910 | return ns; |
| 911 | } |
| 912 | |
| 913 | static u32 get_msglevel(struct net_device *dev) |
| 914 | { |
| 915 | struct adapter *adapter = dev->priv; |
| 916 | |
| 917 | return adapter->msg_enable; |
| 918 | } |
| 919 | |
| 920 | static void set_msglevel(struct net_device *dev, u32 val) |
| 921 | { |
| 922 | struct adapter *adapter = dev->priv; |
| 923 | |
| 924 | adapter->msg_enable = val; |
| 925 | } |
| 926 | |
| 927 | static char stats_strings[][ETH_GSTRING_LEN] = { |
| 928 | "TxOctetsOK ", |
| 929 | "TxFramesOK ", |
| 930 | "TxMulticastFramesOK", |
| 931 | "TxBroadcastFramesOK", |
| 932 | "TxPauseFrames ", |
| 933 | "TxUnderrun ", |
| 934 | "TxExtUnderrun ", |
| 935 | |
| 936 | "TxFrames64 ", |
| 937 | "TxFrames65To127 ", |
| 938 | "TxFrames128To255 ", |
| 939 | "TxFrames256To511 ", |
| 940 | "TxFrames512To1023 ", |
| 941 | "TxFrames1024To1518 ", |
| 942 | "TxFrames1519ToMax ", |
| 943 | |
| 944 | "RxOctetsOK ", |
| 945 | "RxFramesOK ", |
| 946 | "RxMulticastFramesOK", |
| 947 | "RxBroadcastFramesOK", |
| 948 | "RxPauseFrames ", |
| 949 | "RxFCSErrors ", |
| 950 | "RxSymbolErrors ", |
| 951 | "RxShortErrors ", |
| 952 | "RxJabberErrors ", |
| 953 | "RxLengthErrors ", |
| 954 | "RxFIFOoverflow ", |
| 955 | |
| 956 | "RxFrames64 ", |
| 957 | "RxFrames65To127 ", |
| 958 | "RxFrames128To255 ", |
| 959 | "RxFrames256To511 ", |
| 960 | "RxFrames512To1023 ", |
| 961 | "RxFrames1024To1518 ", |
| 962 | "RxFrames1519ToMax ", |
| 963 | |
| 964 | "PhyFIFOErrors ", |
| 965 | "TSO ", |
| 966 | "VLANextractions ", |
| 967 | "VLANinsertions ", |
| 968 | "TxCsumOffload ", |
| 969 | "RxCsumGood ", |
| 970 | "RxDrops " |
| 971 | }; |
| 972 | |
| 973 | static int get_stats_count(struct net_device *dev) |
| 974 | { |
| 975 | return ARRAY_SIZE(stats_strings); |
| 976 | } |
| 977 | |
| 978 | #define T3_REGMAP_SIZE (3 * 1024) |
| 979 | |
| 980 | static int get_regs_len(struct net_device *dev) |
| 981 | { |
| 982 | return T3_REGMAP_SIZE; |
| 983 | } |
| 984 | |
| 985 | static int get_eeprom_len(struct net_device *dev) |
| 986 | { |
| 987 | return EEPROMSIZE; |
| 988 | } |
| 989 | |
| 990 | static void get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) |
| 991 | { |
| 992 | u32 fw_vers = 0; |
| 993 | struct adapter *adapter = dev->priv; |
| 994 | |
| 995 | t3_get_fw_version(adapter, &fw_vers); |
| 996 | |
| 997 | strcpy(info->driver, DRV_NAME); |
| 998 | strcpy(info->version, DRV_VERSION); |
| 999 | strcpy(info->bus_info, pci_name(adapter->pdev)); |
| 1000 | if (!fw_vers) |
| 1001 | strcpy(info->fw_version, "N/A"); |
Divy Le Ray | 4aac389 | 2007-01-30 19:43:45 -0800 | [diff] [blame^] | 1002 | else { |
Divy Le Ray | 4d22de3 | 2007-01-18 22:04:14 -0500 | [diff] [blame] | 1003 | snprintf(info->fw_version, sizeof(info->fw_version), |
Divy Le Ray | 4aac389 | 2007-01-30 19:43:45 -0800 | [diff] [blame^] | 1004 | "%s %u.%u.%u", |
| 1005 | G_FW_VERSION_TYPE(fw_vers) ? "T" : "N", |
| 1006 | G_FW_VERSION_MAJOR(fw_vers), |
| 1007 | G_FW_VERSION_MINOR(fw_vers), |
| 1008 | G_FW_VERSION_MICRO(fw_vers)); |
| 1009 | } |
Divy Le Ray | 4d22de3 | 2007-01-18 22:04:14 -0500 | [diff] [blame] | 1010 | } |
| 1011 | |
| 1012 | static void get_strings(struct net_device *dev, u32 stringset, u8 * data) |
| 1013 | { |
| 1014 | if (stringset == ETH_SS_STATS) |
| 1015 | memcpy(data, stats_strings, sizeof(stats_strings)); |
| 1016 | } |
| 1017 | |
| 1018 | static unsigned long collect_sge_port_stats(struct adapter *adapter, |
| 1019 | struct port_info *p, int idx) |
| 1020 | { |
| 1021 | int i; |
| 1022 | unsigned long tot = 0; |
| 1023 | |
| 1024 | for (i = 0; i < p->nqsets; ++i) |
| 1025 | tot += adapter->sge.qs[i + p->first_qset].port_stats[idx]; |
| 1026 | return tot; |
| 1027 | } |
| 1028 | |
| 1029 | static void get_stats(struct net_device *dev, struct ethtool_stats *stats, |
| 1030 | u64 *data) |
| 1031 | { |
| 1032 | struct adapter *adapter = dev->priv; |
| 1033 | struct port_info *pi = netdev_priv(dev); |
| 1034 | const struct mac_stats *s; |
| 1035 | |
| 1036 | spin_lock(&adapter->stats_lock); |
| 1037 | s = t3_mac_update_stats(&pi->mac); |
| 1038 | spin_unlock(&adapter->stats_lock); |
| 1039 | |
| 1040 | *data++ = s->tx_octets; |
| 1041 | *data++ = s->tx_frames; |
| 1042 | *data++ = s->tx_mcast_frames; |
| 1043 | *data++ = s->tx_bcast_frames; |
| 1044 | *data++ = s->tx_pause; |
| 1045 | *data++ = s->tx_underrun; |
| 1046 | *data++ = s->tx_fifo_urun; |
| 1047 | |
| 1048 | *data++ = s->tx_frames_64; |
| 1049 | *data++ = s->tx_frames_65_127; |
| 1050 | *data++ = s->tx_frames_128_255; |
| 1051 | *data++ = s->tx_frames_256_511; |
| 1052 | *data++ = s->tx_frames_512_1023; |
| 1053 | *data++ = s->tx_frames_1024_1518; |
| 1054 | *data++ = s->tx_frames_1519_max; |
| 1055 | |
| 1056 | *data++ = s->rx_octets; |
| 1057 | *data++ = s->rx_frames; |
| 1058 | *data++ = s->rx_mcast_frames; |
| 1059 | *data++ = s->rx_bcast_frames; |
| 1060 | *data++ = s->rx_pause; |
| 1061 | *data++ = s->rx_fcs_errs; |
| 1062 | *data++ = s->rx_symbol_errs; |
| 1063 | *data++ = s->rx_short; |
| 1064 | *data++ = s->rx_jabber; |
| 1065 | *data++ = s->rx_too_long; |
| 1066 | *data++ = s->rx_fifo_ovfl; |
| 1067 | |
| 1068 | *data++ = s->rx_frames_64; |
| 1069 | *data++ = s->rx_frames_65_127; |
| 1070 | *data++ = s->rx_frames_128_255; |
| 1071 | *data++ = s->rx_frames_256_511; |
| 1072 | *data++ = s->rx_frames_512_1023; |
| 1073 | *data++ = s->rx_frames_1024_1518; |
| 1074 | *data++ = s->rx_frames_1519_max; |
| 1075 | |
| 1076 | *data++ = pi->phy.fifo_errors; |
| 1077 | |
| 1078 | *data++ = collect_sge_port_stats(adapter, pi, SGE_PSTAT_TSO); |
| 1079 | *data++ = collect_sge_port_stats(adapter, pi, SGE_PSTAT_VLANEX); |
| 1080 | *data++ = collect_sge_port_stats(adapter, pi, SGE_PSTAT_VLANINS); |
| 1081 | *data++ = collect_sge_port_stats(adapter, pi, SGE_PSTAT_TX_CSUM); |
| 1082 | *data++ = collect_sge_port_stats(adapter, pi, SGE_PSTAT_RX_CSUM_GOOD); |
| 1083 | *data++ = s->rx_cong_drops; |
| 1084 | } |
| 1085 | |
| 1086 | static inline void reg_block_dump(struct adapter *ap, void *buf, |
| 1087 | unsigned int start, unsigned int end) |
| 1088 | { |
| 1089 | u32 *p = buf + start; |
| 1090 | |
| 1091 | for (; start <= end; start += sizeof(u32)) |
| 1092 | *p++ = t3_read_reg(ap, start); |
| 1093 | } |
| 1094 | |
| 1095 | static void get_regs(struct net_device *dev, struct ethtool_regs *regs, |
| 1096 | void *buf) |
| 1097 | { |
| 1098 | struct adapter *ap = dev->priv; |
| 1099 | |
| 1100 | /* |
| 1101 | * Version scheme: |
| 1102 | * bits 0..9: chip version |
| 1103 | * bits 10..15: chip revision |
| 1104 | * bit 31: set for PCIe cards |
| 1105 | */ |
| 1106 | regs->version = 3 | (ap->params.rev << 10) | (is_pcie(ap) << 31); |
| 1107 | |
| 1108 | /* |
| 1109 | * We skip the MAC statistics registers because they are clear-on-read. |
| 1110 | * Also reading multi-register stats would need to synchronize with the |
| 1111 | * periodic mac stats accumulation. Hard to justify the complexity. |
| 1112 | */ |
| 1113 | memset(buf, 0, T3_REGMAP_SIZE); |
| 1114 | reg_block_dump(ap, buf, 0, A_SG_RSPQ_CREDIT_RETURN); |
| 1115 | reg_block_dump(ap, buf, A_SG_HI_DRB_HI_THRSH, A_ULPRX_PBL_ULIMIT); |
| 1116 | reg_block_dump(ap, buf, A_ULPTX_CONFIG, A_MPS_INT_CAUSE); |
| 1117 | reg_block_dump(ap, buf, A_CPL_SWITCH_CNTRL, A_CPL_MAP_TBL_DATA); |
| 1118 | reg_block_dump(ap, buf, A_SMB_GLOBAL_TIME_CFG, A_XGM_SERDES_STAT3); |
| 1119 | reg_block_dump(ap, buf, A_XGM_SERDES_STATUS0, |
| 1120 | XGM_REG(A_XGM_SERDES_STAT3, 1)); |
| 1121 | reg_block_dump(ap, buf, XGM_REG(A_XGM_SERDES_STATUS0, 1), |
| 1122 | XGM_REG(A_XGM_RX_SPI4_SOP_EOP_CNT, 1)); |
| 1123 | } |
| 1124 | |
| 1125 | static int restart_autoneg(struct net_device *dev) |
| 1126 | { |
| 1127 | struct port_info *p = netdev_priv(dev); |
| 1128 | |
| 1129 | if (!netif_running(dev)) |
| 1130 | return -EAGAIN; |
| 1131 | if (p->link_config.autoneg != AUTONEG_ENABLE) |
| 1132 | return -EINVAL; |
| 1133 | p->phy.ops->autoneg_restart(&p->phy); |
| 1134 | return 0; |
| 1135 | } |
| 1136 | |
| 1137 | static int cxgb3_phys_id(struct net_device *dev, u32 data) |
| 1138 | { |
| 1139 | int i; |
| 1140 | struct adapter *adapter = dev->priv; |
| 1141 | |
| 1142 | if (data == 0) |
| 1143 | data = 2; |
| 1144 | |
| 1145 | for (i = 0; i < data * 2; i++) { |
| 1146 | t3_set_reg_field(adapter, A_T3DBG_GPIO_EN, F_GPIO0_OUT_VAL, |
| 1147 | (i & 1) ? F_GPIO0_OUT_VAL : 0); |
| 1148 | if (msleep_interruptible(500)) |
| 1149 | break; |
| 1150 | } |
| 1151 | t3_set_reg_field(adapter, A_T3DBG_GPIO_EN, F_GPIO0_OUT_VAL, |
| 1152 | F_GPIO0_OUT_VAL); |
| 1153 | return 0; |
| 1154 | } |
| 1155 | |
| 1156 | static int get_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
| 1157 | { |
| 1158 | struct port_info *p = netdev_priv(dev); |
| 1159 | |
| 1160 | cmd->supported = p->link_config.supported; |
| 1161 | cmd->advertising = p->link_config.advertising; |
| 1162 | |
| 1163 | if (netif_carrier_ok(dev)) { |
| 1164 | cmd->speed = p->link_config.speed; |
| 1165 | cmd->duplex = p->link_config.duplex; |
| 1166 | } else { |
| 1167 | cmd->speed = -1; |
| 1168 | cmd->duplex = -1; |
| 1169 | } |
| 1170 | |
| 1171 | cmd->port = (cmd->supported & SUPPORTED_TP) ? PORT_TP : PORT_FIBRE; |
| 1172 | cmd->phy_address = p->phy.addr; |
| 1173 | cmd->transceiver = XCVR_EXTERNAL; |
| 1174 | cmd->autoneg = p->link_config.autoneg; |
| 1175 | cmd->maxtxpkt = 0; |
| 1176 | cmd->maxrxpkt = 0; |
| 1177 | return 0; |
| 1178 | } |
| 1179 | |
| 1180 | static int speed_duplex_to_caps(int speed, int duplex) |
| 1181 | { |
| 1182 | int cap = 0; |
| 1183 | |
| 1184 | switch (speed) { |
| 1185 | case SPEED_10: |
| 1186 | if (duplex == DUPLEX_FULL) |
| 1187 | cap = SUPPORTED_10baseT_Full; |
| 1188 | else |
| 1189 | cap = SUPPORTED_10baseT_Half; |
| 1190 | break; |
| 1191 | case SPEED_100: |
| 1192 | if (duplex == DUPLEX_FULL) |
| 1193 | cap = SUPPORTED_100baseT_Full; |
| 1194 | else |
| 1195 | cap = SUPPORTED_100baseT_Half; |
| 1196 | break; |
| 1197 | case SPEED_1000: |
| 1198 | if (duplex == DUPLEX_FULL) |
| 1199 | cap = SUPPORTED_1000baseT_Full; |
| 1200 | else |
| 1201 | cap = SUPPORTED_1000baseT_Half; |
| 1202 | break; |
| 1203 | case SPEED_10000: |
| 1204 | if (duplex == DUPLEX_FULL) |
| 1205 | cap = SUPPORTED_10000baseT_Full; |
| 1206 | } |
| 1207 | return cap; |
| 1208 | } |
| 1209 | |
| 1210 | #define ADVERTISED_MASK (ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full | \ |
| 1211 | ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full | \ |
| 1212 | ADVERTISED_1000baseT_Half | ADVERTISED_1000baseT_Full | \ |
| 1213 | ADVERTISED_10000baseT_Full) |
| 1214 | |
| 1215 | static int set_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
| 1216 | { |
| 1217 | struct port_info *p = netdev_priv(dev); |
| 1218 | struct link_config *lc = &p->link_config; |
| 1219 | |
| 1220 | if (!(lc->supported & SUPPORTED_Autoneg)) |
| 1221 | return -EOPNOTSUPP; /* can't change speed/duplex */ |
| 1222 | |
| 1223 | if (cmd->autoneg == AUTONEG_DISABLE) { |
| 1224 | int cap = speed_duplex_to_caps(cmd->speed, cmd->duplex); |
| 1225 | |
| 1226 | if (!(lc->supported & cap) || cmd->speed == SPEED_1000) |
| 1227 | return -EINVAL; |
| 1228 | lc->requested_speed = cmd->speed; |
| 1229 | lc->requested_duplex = cmd->duplex; |
| 1230 | lc->advertising = 0; |
| 1231 | } else { |
| 1232 | cmd->advertising &= ADVERTISED_MASK; |
| 1233 | cmd->advertising &= lc->supported; |
| 1234 | if (!cmd->advertising) |
| 1235 | return -EINVAL; |
| 1236 | lc->requested_speed = SPEED_INVALID; |
| 1237 | lc->requested_duplex = DUPLEX_INVALID; |
| 1238 | lc->advertising = cmd->advertising | ADVERTISED_Autoneg; |
| 1239 | } |
| 1240 | lc->autoneg = cmd->autoneg; |
| 1241 | if (netif_running(dev)) |
| 1242 | t3_link_start(&p->phy, &p->mac, lc); |
| 1243 | return 0; |
| 1244 | } |
| 1245 | |
| 1246 | static void get_pauseparam(struct net_device *dev, |
| 1247 | struct ethtool_pauseparam *epause) |
| 1248 | { |
| 1249 | struct port_info *p = netdev_priv(dev); |
| 1250 | |
| 1251 | epause->autoneg = (p->link_config.requested_fc & PAUSE_AUTONEG) != 0; |
| 1252 | epause->rx_pause = (p->link_config.fc & PAUSE_RX) != 0; |
| 1253 | epause->tx_pause = (p->link_config.fc & PAUSE_TX) != 0; |
| 1254 | } |
| 1255 | |
| 1256 | static int set_pauseparam(struct net_device *dev, |
| 1257 | struct ethtool_pauseparam *epause) |
| 1258 | { |
| 1259 | struct port_info *p = netdev_priv(dev); |
| 1260 | struct link_config *lc = &p->link_config; |
| 1261 | |
| 1262 | if (epause->autoneg == AUTONEG_DISABLE) |
| 1263 | lc->requested_fc = 0; |
| 1264 | else if (lc->supported & SUPPORTED_Autoneg) |
| 1265 | lc->requested_fc = PAUSE_AUTONEG; |
| 1266 | else |
| 1267 | return -EINVAL; |
| 1268 | |
| 1269 | if (epause->rx_pause) |
| 1270 | lc->requested_fc |= PAUSE_RX; |
| 1271 | if (epause->tx_pause) |
| 1272 | lc->requested_fc |= PAUSE_TX; |
| 1273 | if (lc->autoneg == AUTONEG_ENABLE) { |
| 1274 | if (netif_running(dev)) |
| 1275 | t3_link_start(&p->phy, &p->mac, lc); |
| 1276 | } else { |
| 1277 | lc->fc = lc->requested_fc & (PAUSE_RX | PAUSE_TX); |
| 1278 | if (netif_running(dev)) |
| 1279 | t3_mac_set_speed_duplex_fc(&p->mac, -1, -1, lc->fc); |
| 1280 | } |
| 1281 | return 0; |
| 1282 | } |
| 1283 | |
| 1284 | static u32 get_rx_csum(struct net_device *dev) |
| 1285 | { |
| 1286 | struct port_info *p = netdev_priv(dev); |
| 1287 | |
| 1288 | return p->rx_csum_offload; |
| 1289 | } |
| 1290 | |
| 1291 | static int set_rx_csum(struct net_device *dev, u32 data) |
| 1292 | { |
| 1293 | struct port_info *p = netdev_priv(dev); |
| 1294 | |
| 1295 | p->rx_csum_offload = data; |
| 1296 | return 0; |
| 1297 | } |
| 1298 | |
| 1299 | static void get_sge_param(struct net_device *dev, struct ethtool_ringparam *e) |
| 1300 | { |
| 1301 | struct adapter *adapter = dev->priv; |
| 1302 | |
| 1303 | e->rx_max_pending = MAX_RX_BUFFERS; |
| 1304 | e->rx_mini_max_pending = 0; |
| 1305 | e->rx_jumbo_max_pending = MAX_RX_JUMBO_BUFFERS; |
| 1306 | e->tx_max_pending = MAX_TXQ_ENTRIES; |
| 1307 | |
| 1308 | e->rx_pending = adapter->params.sge.qset[0].fl_size; |
| 1309 | e->rx_mini_pending = adapter->params.sge.qset[0].rspq_size; |
| 1310 | e->rx_jumbo_pending = adapter->params.sge.qset[0].jumbo_size; |
| 1311 | e->tx_pending = adapter->params.sge.qset[0].txq_size[0]; |
| 1312 | } |
| 1313 | |
| 1314 | static int set_sge_param(struct net_device *dev, struct ethtool_ringparam *e) |
| 1315 | { |
| 1316 | int i; |
| 1317 | struct adapter *adapter = dev->priv; |
| 1318 | |
| 1319 | if (e->rx_pending > MAX_RX_BUFFERS || |
| 1320 | e->rx_jumbo_pending > MAX_RX_JUMBO_BUFFERS || |
| 1321 | e->tx_pending > MAX_TXQ_ENTRIES || |
| 1322 | e->rx_mini_pending > MAX_RSPQ_ENTRIES || |
| 1323 | e->rx_mini_pending < MIN_RSPQ_ENTRIES || |
| 1324 | e->rx_pending < MIN_FL_ENTRIES || |
| 1325 | e->rx_jumbo_pending < MIN_FL_ENTRIES || |
| 1326 | e->tx_pending < adapter->params.nports * MIN_TXQ_ENTRIES) |
| 1327 | return -EINVAL; |
| 1328 | |
| 1329 | if (adapter->flags & FULL_INIT_DONE) |
| 1330 | return -EBUSY; |
| 1331 | |
| 1332 | for (i = 0; i < SGE_QSETS; ++i) { |
| 1333 | struct qset_params *q = &adapter->params.sge.qset[i]; |
| 1334 | |
| 1335 | q->rspq_size = e->rx_mini_pending; |
| 1336 | q->fl_size = e->rx_pending; |
| 1337 | q->jumbo_size = e->rx_jumbo_pending; |
| 1338 | q->txq_size[0] = e->tx_pending; |
| 1339 | q->txq_size[1] = e->tx_pending; |
| 1340 | q->txq_size[2] = e->tx_pending; |
| 1341 | } |
| 1342 | return 0; |
| 1343 | } |
| 1344 | |
| 1345 | static int set_coalesce(struct net_device *dev, struct ethtool_coalesce *c) |
| 1346 | { |
| 1347 | struct adapter *adapter = dev->priv; |
| 1348 | struct qset_params *qsp = &adapter->params.sge.qset[0]; |
| 1349 | struct sge_qset *qs = &adapter->sge.qs[0]; |
| 1350 | |
| 1351 | if (c->rx_coalesce_usecs * 10 > M_NEWTIMER) |
| 1352 | return -EINVAL; |
| 1353 | |
| 1354 | qsp->coalesce_usecs = c->rx_coalesce_usecs; |
| 1355 | t3_update_qset_coalesce(qs, qsp); |
| 1356 | return 0; |
| 1357 | } |
| 1358 | |
| 1359 | static int get_coalesce(struct net_device *dev, struct ethtool_coalesce *c) |
| 1360 | { |
| 1361 | struct adapter *adapter = dev->priv; |
| 1362 | struct qset_params *q = adapter->params.sge.qset; |
| 1363 | |
| 1364 | c->rx_coalesce_usecs = q->coalesce_usecs; |
| 1365 | return 0; |
| 1366 | } |
| 1367 | |
| 1368 | static int get_eeprom(struct net_device *dev, struct ethtool_eeprom *e, |
| 1369 | u8 * data) |
| 1370 | { |
| 1371 | int i, err = 0; |
| 1372 | struct adapter *adapter = dev->priv; |
| 1373 | |
| 1374 | u8 *buf = kmalloc(EEPROMSIZE, GFP_KERNEL); |
| 1375 | if (!buf) |
| 1376 | return -ENOMEM; |
| 1377 | |
| 1378 | e->magic = EEPROM_MAGIC; |
| 1379 | for (i = e->offset & ~3; !err && i < e->offset + e->len; i += 4) |
| 1380 | err = t3_seeprom_read(adapter, i, (u32 *) & buf[i]); |
| 1381 | |
| 1382 | if (!err) |
| 1383 | memcpy(data, buf + e->offset, e->len); |
| 1384 | kfree(buf); |
| 1385 | return err; |
| 1386 | } |
| 1387 | |
| 1388 | static int set_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom, |
| 1389 | u8 * data) |
| 1390 | { |
| 1391 | u8 *buf; |
| 1392 | int err = 0; |
| 1393 | u32 aligned_offset, aligned_len, *p; |
| 1394 | struct adapter *adapter = dev->priv; |
| 1395 | |
| 1396 | if (eeprom->magic != EEPROM_MAGIC) |
| 1397 | return -EINVAL; |
| 1398 | |
| 1399 | aligned_offset = eeprom->offset & ~3; |
| 1400 | aligned_len = (eeprom->len + (eeprom->offset & 3) + 3) & ~3; |
| 1401 | |
| 1402 | if (aligned_offset != eeprom->offset || aligned_len != eeprom->len) { |
| 1403 | buf = kmalloc(aligned_len, GFP_KERNEL); |
| 1404 | if (!buf) |
| 1405 | return -ENOMEM; |
| 1406 | err = t3_seeprom_read(adapter, aligned_offset, (u32 *) buf); |
| 1407 | if (!err && aligned_len > 4) |
| 1408 | err = t3_seeprom_read(adapter, |
| 1409 | aligned_offset + aligned_len - 4, |
| 1410 | (u32 *) & buf[aligned_len - 4]); |
| 1411 | if (err) |
| 1412 | goto out; |
| 1413 | memcpy(buf + (eeprom->offset & 3), data, eeprom->len); |
| 1414 | } else |
| 1415 | buf = data; |
| 1416 | |
| 1417 | err = t3_seeprom_wp(adapter, 0); |
| 1418 | if (err) |
| 1419 | goto out; |
| 1420 | |
| 1421 | for (p = (u32 *) buf; !err && aligned_len; aligned_len -= 4, p++) { |
| 1422 | err = t3_seeprom_write(adapter, aligned_offset, *p); |
| 1423 | aligned_offset += 4; |
| 1424 | } |
| 1425 | |
| 1426 | if (!err) |
| 1427 | err = t3_seeprom_wp(adapter, 1); |
| 1428 | out: |
| 1429 | if (buf != data) |
| 1430 | kfree(buf); |
| 1431 | return err; |
| 1432 | } |
| 1433 | |
| 1434 | static void get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) |
| 1435 | { |
| 1436 | wol->supported = 0; |
| 1437 | wol->wolopts = 0; |
| 1438 | memset(&wol->sopass, 0, sizeof(wol->sopass)); |
| 1439 | } |
| 1440 | |
| 1441 | static const struct ethtool_ops cxgb_ethtool_ops = { |
| 1442 | .get_settings = get_settings, |
| 1443 | .set_settings = set_settings, |
| 1444 | .get_drvinfo = get_drvinfo, |
| 1445 | .get_msglevel = get_msglevel, |
| 1446 | .set_msglevel = set_msglevel, |
| 1447 | .get_ringparam = get_sge_param, |
| 1448 | .set_ringparam = set_sge_param, |
| 1449 | .get_coalesce = get_coalesce, |
| 1450 | .set_coalesce = set_coalesce, |
| 1451 | .get_eeprom_len = get_eeprom_len, |
| 1452 | .get_eeprom = get_eeprom, |
| 1453 | .set_eeprom = set_eeprom, |
| 1454 | .get_pauseparam = get_pauseparam, |
| 1455 | .set_pauseparam = set_pauseparam, |
| 1456 | .get_rx_csum = get_rx_csum, |
| 1457 | .set_rx_csum = set_rx_csum, |
| 1458 | .get_tx_csum = ethtool_op_get_tx_csum, |
| 1459 | .set_tx_csum = ethtool_op_set_tx_csum, |
| 1460 | .get_sg = ethtool_op_get_sg, |
| 1461 | .set_sg = ethtool_op_set_sg, |
| 1462 | .get_link = ethtool_op_get_link, |
| 1463 | .get_strings = get_strings, |
| 1464 | .phys_id = cxgb3_phys_id, |
| 1465 | .nway_reset = restart_autoneg, |
| 1466 | .get_stats_count = get_stats_count, |
| 1467 | .get_ethtool_stats = get_stats, |
| 1468 | .get_regs_len = get_regs_len, |
| 1469 | .get_regs = get_regs, |
| 1470 | .get_wol = get_wol, |
| 1471 | .get_tso = ethtool_op_get_tso, |
| 1472 | .set_tso = ethtool_op_set_tso, |
| 1473 | .get_perm_addr = ethtool_op_get_perm_addr |
| 1474 | }; |
| 1475 | |
| 1476 | static int in_range(int val, int lo, int hi) |
| 1477 | { |
| 1478 | return val < 0 || (val <= hi && val >= lo); |
| 1479 | } |
| 1480 | |
| 1481 | static int cxgb_extension_ioctl(struct net_device *dev, void __user *useraddr) |
| 1482 | { |
| 1483 | int ret; |
| 1484 | u32 cmd; |
| 1485 | struct adapter *adapter = dev->priv; |
| 1486 | |
| 1487 | if (copy_from_user(&cmd, useraddr, sizeof(cmd))) |
| 1488 | return -EFAULT; |
| 1489 | |
| 1490 | switch (cmd) { |
| 1491 | case CHELSIO_SETREG:{ |
| 1492 | struct ch_reg edata; |
| 1493 | |
| 1494 | if (!capable(CAP_NET_ADMIN)) |
| 1495 | return -EPERM; |
| 1496 | if (copy_from_user(&edata, useraddr, sizeof(edata))) |
| 1497 | return -EFAULT; |
| 1498 | if ((edata.addr & 3) != 0 |
| 1499 | || edata.addr >= adapter->mmio_len) |
| 1500 | return -EINVAL; |
| 1501 | writel(edata.val, adapter->regs + edata.addr); |
| 1502 | break; |
| 1503 | } |
| 1504 | case CHELSIO_GETREG:{ |
| 1505 | struct ch_reg edata; |
| 1506 | |
| 1507 | if (copy_from_user(&edata, useraddr, sizeof(edata))) |
| 1508 | return -EFAULT; |
| 1509 | if ((edata.addr & 3) != 0 |
| 1510 | || edata.addr >= adapter->mmio_len) |
| 1511 | return -EINVAL; |
| 1512 | edata.val = readl(adapter->regs + edata.addr); |
| 1513 | if (copy_to_user(useraddr, &edata, sizeof(edata))) |
| 1514 | return -EFAULT; |
| 1515 | break; |
| 1516 | } |
| 1517 | case CHELSIO_SET_QSET_PARAMS:{ |
| 1518 | int i; |
| 1519 | struct qset_params *q; |
| 1520 | struct ch_qset_params t; |
| 1521 | |
| 1522 | if (!capable(CAP_NET_ADMIN)) |
| 1523 | return -EPERM; |
| 1524 | if (copy_from_user(&t, useraddr, sizeof(t))) |
| 1525 | return -EFAULT; |
| 1526 | if (t.qset_idx >= SGE_QSETS) |
| 1527 | return -EINVAL; |
| 1528 | if (!in_range(t.intr_lat, 0, M_NEWTIMER) || |
| 1529 | !in_range(t.cong_thres, 0, 255) || |
| 1530 | !in_range(t.txq_size[0], MIN_TXQ_ENTRIES, |
| 1531 | MAX_TXQ_ENTRIES) || |
| 1532 | !in_range(t.txq_size[1], MIN_TXQ_ENTRIES, |
| 1533 | MAX_TXQ_ENTRIES) || |
| 1534 | !in_range(t.txq_size[2], MIN_CTRL_TXQ_ENTRIES, |
| 1535 | MAX_CTRL_TXQ_ENTRIES) || |
| 1536 | !in_range(t.fl_size[0], MIN_FL_ENTRIES, |
| 1537 | MAX_RX_BUFFERS) |
| 1538 | || !in_range(t.fl_size[1], MIN_FL_ENTRIES, |
| 1539 | MAX_RX_JUMBO_BUFFERS) |
| 1540 | || !in_range(t.rspq_size, MIN_RSPQ_ENTRIES, |
| 1541 | MAX_RSPQ_ENTRIES)) |
| 1542 | return -EINVAL; |
| 1543 | if ((adapter->flags & FULL_INIT_DONE) && |
| 1544 | (t.rspq_size >= 0 || t.fl_size[0] >= 0 || |
| 1545 | t.fl_size[1] >= 0 || t.txq_size[0] >= 0 || |
| 1546 | t.txq_size[1] >= 0 || t.txq_size[2] >= 0 || |
| 1547 | t.polling >= 0 || t.cong_thres >= 0)) |
| 1548 | return -EBUSY; |
| 1549 | |
| 1550 | q = &adapter->params.sge.qset[t.qset_idx]; |
| 1551 | |
| 1552 | if (t.rspq_size >= 0) |
| 1553 | q->rspq_size = t.rspq_size; |
| 1554 | if (t.fl_size[0] >= 0) |
| 1555 | q->fl_size = t.fl_size[0]; |
| 1556 | if (t.fl_size[1] >= 0) |
| 1557 | q->jumbo_size = t.fl_size[1]; |
| 1558 | if (t.txq_size[0] >= 0) |
| 1559 | q->txq_size[0] = t.txq_size[0]; |
| 1560 | if (t.txq_size[1] >= 0) |
| 1561 | q->txq_size[1] = t.txq_size[1]; |
| 1562 | if (t.txq_size[2] >= 0) |
| 1563 | q->txq_size[2] = t.txq_size[2]; |
| 1564 | if (t.cong_thres >= 0) |
| 1565 | q->cong_thres = t.cong_thres; |
| 1566 | if (t.intr_lat >= 0) { |
| 1567 | struct sge_qset *qs = |
| 1568 | &adapter->sge.qs[t.qset_idx]; |
| 1569 | |
| 1570 | q->coalesce_usecs = t.intr_lat; |
| 1571 | t3_update_qset_coalesce(qs, q); |
| 1572 | } |
| 1573 | if (t.polling >= 0) { |
| 1574 | if (adapter->flags & USING_MSIX) |
| 1575 | q->polling = t.polling; |
| 1576 | else { |
| 1577 | /* No polling with INTx for T3A */ |
| 1578 | if (adapter->params.rev == 0 && |
| 1579 | !(adapter->flags & USING_MSI)) |
| 1580 | t.polling = 0; |
| 1581 | |
| 1582 | for (i = 0; i < SGE_QSETS; i++) { |
| 1583 | q = &adapter->params.sge. |
| 1584 | qset[i]; |
| 1585 | q->polling = t.polling; |
| 1586 | } |
| 1587 | } |
| 1588 | } |
| 1589 | break; |
| 1590 | } |
| 1591 | case CHELSIO_GET_QSET_PARAMS:{ |
| 1592 | struct qset_params *q; |
| 1593 | struct ch_qset_params t; |
| 1594 | |
| 1595 | if (copy_from_user(&t, useraddr, sizeof(t))) |
| 1596 | return -EFAULT; |
| 1597 | if (t.qset_idx >= SGE_QSETS) |
| 1598 | return -EINVAL; |
| 1599 | |
| 1600 | q = &adapter->params.sge.qset[t.qset_idx]; |
| 1601 | t.rspq_size = q->rspq_size; |
| 1602 | t.txq_size[0] = q->txq_size[0]; |
| 1603 | t.txq_size[1] = q->txq_size[1]; |
| 1604 | t.txq_size[2] = q->txq_size[2]; |
| 1605 | t.fl_size[0] = q->fl_size; |
| 1606 | t.fl_size[1] = q->jumbo_size; |
| 1607 | t.polling = q->polling; |
| 1608 | t.intr_lat = q->coalesce_usecs; |
| 1609 | t.cong_thres = q->cong_thres; |
| 1610 | |
| 1611 | if (copy_to_user(useraddr, &t, sizeof(t))) |
| 1612 | return -EFAULT; |
| 1613 | break; |
| 1614 | } |
| 1615 | case CHELSIO_SET_QSET_NUM:{ |
| 1616 | struct ch_reg edata; |
| 1617 | struct port_info *pi = netdev_priv(dev); |
| 1618 | unsigned int i, first_qset = 0, other_qsets = 0; |
| 1619 | |
| 1620 | if (!capable(CAP_NET_ADMIN)) |
| 1621 | return -EPERM; |
| 1622 | if (adapter->flags & FULL_INIT_DONE) |
| 1623 | return -EBUSY; |
| 1624 | if (copy_from_user(&edata, useraddr, sizeof(edata))) |
| 1625 | return -EFAULT; |
| 1626 | if (edata.val < 1 || |
| 1627 | (edata.val > 1 && !(adapter->flags & USING_MSIX))) |
| 1628 | return -EINVAL; |
| 1629 | |
| 1630 | for_each_port(adapter, i) |
| 1631 | if (adapter->port[i] && adapter->port[i] != dev) |
| 1632 | other_qsets += adap2pinfo(adapter, i)->nqsets; |
| 1633 | |
| 1634 | if (edata.val + other_qsets > SGE_QSETS) |
| 1635 | return -EINVAL; |
| 1636 | |
| 1637 | pi->nqsets = edata.val; |
| 1638 | |
| 1639 | for_each_port(adapter, i) |
| 1640 | if (adapter->port[i]) { |
| 1641 | pi = adap2pinfo(adapter, i); |
| 1642 | pi->first_qset = first_qset; |
| 1643 | first_qset += pi->nqsets; |
| 1644 | } |
| 1645 | break; |
| 1646 | } |
| 1647 | case CHELSIO_GET_QSET_NUM:{ |
| 1648 | struct ch_reg edata; |
| 1649 | struct port_info *pi = netdev_priv(dev); |
| 1650 | |
| 1651 | edata.cmd = CHELSIO_GET_QSET_NUM; |
| 1652 | edata.val = pi->nqsets; |
| 1653 | if (copy_to_user(useraddr, &edata, sizeof(edata))) |
| 1654 | return -EFAULT; |
| 1655 | break; |
| 1656 | } |
| 1657 | case CHELSIO_LOAD_FW:{ |
| 1658 | u8 *fw_data; |
| 1659 | struct ch_mem_range t; |
| 1660 | |
| 1661 | if (!capable(CAP_NET_ADMIN)) |
| 1662 | return -EPERM; |
| 1663 | if (copy_from_user(&t, useraddr, sizeof(t))) |
| 1664 | return -EFAULT; |
| 1665 | |
| 1666 | fw_data = kmalloc(t.len, GFP_KERNEL); |
| 1667 | if (!fw_data) |
| 1668 | return -ENOMEM; |
| 1669 | |
| 1670 | if (copy_from_user |
| 1671 | (fw_data, useraddr + sizeof(t), t.len)) { |
| 1672 | kfree(fw_data); |
| 1673 | return -EFAULT; |
| 1674 | } |
| 1675 | |
| 1676 | ret = t3_load_fw(adapter, fw_data, t.len); |
| 1677 | kfree(fw_data); |
| 1678 | if (ret) |
| 1679 | return ret; |
| 1680 | break; |
| 1681 | } |
| 1682 | case CHELSIO_SETMTUTAB:{ |
| 1683 | struct ch_mtus m; |
| 1684 | int i; |
| 1685 | |
| 1686 | if (!is_offload(adapter)) |
| 1687 | return -EOPNOTSUPP; |
| 1688 | if (!capable(CAP_NET_ADMIN)) |
| 1689 | return -EPERM; |
| 1690 | if (offload_running(adapter)) |
| 1691 | return -EBUSY; |
| 1692 | if (copy_from_user(&m, useraddr, sizeof(m))) |
| 1693 | return -EFAULT; |
| 1694 | if (m.nmtus != NMTUS) |
| 1695 | return -EINVAL; |
| 1696 | if (m.mtus[0] < 81) /* accommodate SACK */ |
| 1697 | return -EINVAL; |
| 1698 | |
| 1699 | /* MTUs must be in ascending order */ |
| 1700 | for (i = 1; i < NMTUS; ++i) |
| 1701 | if (m.mtus[i] < m.mtus[i - 1]) |
| 1702 | return -EINVAL; |
| 1703 | |
| 1704 | memcpy(adapter->params.mtus, m.mtus, |
| 1705 | sizeof(adapter->params.mtus)); |
| 1706 | break; |
| 1707 | } |
| 1708 | case CHELSIO_GET_PM:{ |
| 1709 | struct tp_params *p = &adapter->params.tp; |
| 1710 | struct ch_pm m = {.cmd = CHELSIO_GET_PM }; |
| 1711 | |
| 1712 | if (!is_offload(adapter)) |
| 1713 | return -EOPNOTSUPP; |
| 1714 | m.tx_pg_sz = p->tx_pg_size; |
| 1715 | m.tx_num_pg = p->tx_num_pgs; |
| 1716 | m.rx_pg_sz = p->rx_pg_size; |
| 1717 | m.rx_num_pg = p->rx_num_pgs; |
| 1718 | m.pm_total = p->pmtx_size + p->chan_rx_size * p->nchan; |
| 1719 | if (copy_to_user(useraddr, &m, sizeof(m))) |
| 1720 | return -EFAULT; |
| 1721 | break; |
| 1722 | } |
| 1723 | case CHELSIO_SET_PM:{ |
| 1724 | struct ch_pm m; |
| 1725 | struct tp_params *p = &adapter->params.tp; |
| 1726 | |
| 1727 | if (!is_offload(adapter)) |
| 1728 | return -EOPNOTSUPP; |
| 1729 | if (!capable(CAP_NET_ADMIN)) |
| 1730 | return -EPERM; |
| 1731 | if (adapter->flags & FULL_INIT_DONE) |
| 1732 | return -EBUSY; |
| 1733 | if (copy_from_user(&m, useraddr, sizeof(m))) |
| 1734 | return -EFAULT; |
| 1735 | if (!m.rx_pg_sz || (m.rx_pg_sz & (m.rx_pg_sz - 1)) || |
| 1736 | !m.tx_pg_sz || (m.tx_pg_sz & (m.tx_pg_sz - 1))) |
| 1737 | return -EINVAL; /* not power of 2 */ |
| 1738 | if (!(m.rx_pg_sz & 0x14000)) |
| 1739 | return -EINVAL; /* not 16KB or 64KB */ |
| 1740 | if (!(m.tx_pg_sz & 0x1554000)) |
| 1741 | return -EINVAL; |
| 1742 | if (m.tx_num_pg == -1) |
| 1743 | m.tx_num_pg = p->tx_num_pgs; |
| 1744 | if (m.rx_num_pg == -1) |
| 1745 | m.rx_num_pg = p->rx_num_pgs; |
| 1746 | if (m.tx_num_pg % 24 || m.rx_num_pg % 24) |
| 1747 | return -EINVAL; |
| 1748 | if (m.rx_num_pg * m.rx_pg_sz > p->chan_rx_size || |
| 1749 | m.tx_num_pg * m.tx_pg_sz > p->chan_tx_size) |
| 1750 | return -EINVAL; |
| 1751 | p->rx_pg_size = m.rx_pg_sz; |
| 1752 | p->tx_pg_size = m.tx_pg_sz; |
| 1753 | p->rx_num_pgs = m.rx_num_pg; |
| 1754 | p->tx_num_pgs = m.tx_num_pg; |
| 1755 | break; |
| 1756 | } |
| 1757 | case CHELSIO_GET_MEM:{ |
| 1758 | struct ch_mem_range t; |
| 1759 | struct mc7 *mem; |
| 1760 | u64 buf[32]; |
| 1761 | |
| 1762 | if (!is_offload(adapter)) |
| 1763 | return -EOPNOTSUPP; |
| 1764 | if (!(adapter->flags & FULL_INIT_DONE)) |
| 1765 | return -EIO; /* need the memory controllers */ |
| 1766 | if (copy_from_user(&t, useraddr, sizeof(t))) |
| 1767 | return -EFAULT; |
| 1768 | if ((t.addr & 7) || (t.len & 7)) |
| 1769 | return -EINVAL; |
| 1770 | if (t.mem_id == MEM_CM) |
| 1771 | mem = &adapter->cm; |
| 1772 | else if (t.mem_id == MEM_PMRX) |
| 1773 | mem = &adapter->pmrx; |
| 1774 | else if (t.mem_id == MEM_PMTX) |
| 1775 | mem = &adapter->pmtx; |
| 1776 | else |
| 1777 | return -EINVAL; |
| 1778 | |
| 1779 | /* |
| 1780 | * Version scheme: |
| 1781 | * bits 0..9: chip version |
| 1782 | * bits 10..15: chip revision |
| 1783 | */ |
| 1784 | t.version = 3 | (adapter->params.rev << 10); |
| 1785 | if (copy_to_user(useraddr, &t, sizeof(t))) |
| 1786 | return -EFAULT; |
| 1787 | |
| 1788 | /* |
| 1789 | * Read 256 bytes at a time as len can be large and we don't |
| 1790 | * want to use huge intermediate buffers. |
| 1791 | */ |
| 1792 | useraddr += sizeof(t); /* advance to start of buffer */ |
| 1793 | while (t.len) { |
| 1794 | unsigned int chunk = |
| 1795 | min_t(unsigned int, t.len, sizeof(buf)); |
| 1796 | |
| 1797 | ret = |
| 1798 | t3_mc7_bd_read(mem, t.addr / 8, chunk / 8, |
| 1799 | buf); |
| 1800 | if (ret) |
| 1801 | return ret; |
| 1802 | if (copy_to_user(useraddr, buf, chunk)) |
| 1803 | return -EFAULT; |
| 1804 | useraddr += chunk; |
| 1805 | t.addr += chunk; |
| 1806 | t.len -= chunk; |
| 1807 | } |
| 1808 | break; |
| 1809 | } |
| 1810 | case CHELSIO_SET_TRACE_FILTER:{ |
| 1811 | struct ch_trace t; |
| 1812 | const struct trace_params *tp; |
| 1813 | |
| 1814 | if (!capable(CAP_NET_ADMIN)) |
| 1815 | return -EPERM; |
| 1816 | if (!offload_running(adapter)) |
| 1817 | return -EAGAIN; |
| 1818 | if (copy_from_user(&t, useraddr, sizeof(t))) |
| 1819 | return -EFAULT; |
| 1820 | |
| 1821 | tp = (const struct trace_params *)&t.sip; |
| 1822 | if (t.config_tx) |
| 1823 | t3_config_trace_filter(adapter, tp, 0, |
| 1824 | t.invert_match, |
| 1825 | t.trace_tx); |
| 1826 | if (t.config_rx) |
| 1827 | t3_config_trace_filter(adapter, tp, 1, |
| 1828 | t.invert_match, |
| 1829 | t.trace_rx); |
| 1830 | break; |
| 1831 | } |
| 1832 | case CHELSIO_SET_PKTSCHED:{ |
| 1833 | struct sk_buff *skb; |
| 1834 | struct ch_pktsched_params p; |
| 1835 | struct mngt_pktsched_wr *req; |
| 1836 | |
| 1837 | if (!(adapter->flags & FULL_INIT_DONE)) |
| 1838 | return -EIO; /* uP must be up and running */ |
| 1839 | if (copy_from_user(&p, useraddr, sizeof(p))) |
| 1840 | return -EFAULT; |
| 1841 | skb = alloc_skb(sizeof(*req), GFP_KERNEL); |
| 1842 | if (!skb) |
| 1843 | return -ENOMEM; |
| 1844 | req = |
| 1845 | (struct mngt_pktsched_wr *)skb_put(skb, |
| 1846 | sizeof(*req)); |
| 1847 | req->wr_hi = htonl(V_WR_OP(FW_WROPCODE_MNGT)); |
| 1848 | req->mngt_opcode = FW_MNGTOPCODE_PKTSCHED_SET; |
| 1849 | req->sched = p.sched; |
| 1850 | req->idx = p.idx; |
| 1851 | req->min = p.min; |
| 1852 | req->max = p.max; |
| 1853 | req->binding = p.binding; |
| 1854 | printk(KERN_INFO |
| 1855 | "pktsched: sched %u idx %u min %u max %u binding %u\n", |
| 1856 | req->sched, req->idx, req->min, req->max, |
| 1857 | req->binding); |
| 1858 | skb->priority = 1; |
| 1859 | offload_tx(&adapter->tdev, skb); |
| 1860 | break; |
| 1861 | } |
| 1862 | default: |
| 1863 | return -EOPNOTSUPP; |
| 1864 | } |
| 1865 | return 0; |
| 1866 | } |
| 1867 | |
| 1868 | static int cxgb_ioctl(struct net_device *dev, struct ifreq *req, int cmd) |
| 1869 | { |
| 1870 | int ret, mmd; |
| 1871 | struct adapter *adapter = dev->priv; |
| 1872 | struct port_info *pi = netdev_priv(dev); |
| 1873 | struct mii_ioctl_data *data = if_mii(req); |
| 1874 | |
| 1875 | switch (cmd) { |
| 1876 | case SIOCGMIIPHY: |
| 1877 | data->phy_id = pi->phy.addr; |
| 1878 | /* FALLTHRU */ |
| 1879 | case SIOCGMIIREG:{ |
| 1880 | u32 val; |
| 1881 | struct cphy *phy = &pi->phy; |
| 1882 | |
| 1883 | if (!phy->mdio_read) |
| 1884 | return -EOPNOTSUPP; |
| 1885 | if (is_10G(adapter)) { |
| 1886 | mmd = data->phy_id >> 8; |
| 1887 | if (!mmd) |
| 1888 | mmd = MDIO_DEV_PCS; |
| 1889 | else if (mmd > MDIO_DEV_XGXS) |
| 1890 | return -EINVAL; |
| 1891 | |
| 1892 | ret = |
| 1893 | phy->mdio_read(adapter, data->phy_id & 0x1f, |
| 1894 | mmd, data->reg_num, &val); |
| 1895 | } else |
| 1896 | ret = |
| 1897 | phy->mdio_read(adapter, data->phy_id & 0x1f, |
| 1898 | 0, data->reg_num & 0x1f, |
| 1899 | &val); |
| 1900 | if (!ret) |
| 1901 | data->val_out = val; |
| 1902 | break; |
| 1903 | } |
| 1904 | case SIOCSMIIREG:{ |
| 1905 | struct cphy *phy = &pi->phy; |
| 1906 | |
| 1907 | if (!capable(CAP_NET_ADMIN)) |
| 1908 | return -EPERM; |
| 1909 | if (!phy->mdio_write) |
| 1910 | return -EOPNOTSUPP; |
| 1911 | if (is_10G(adapter)) { |
| 1912 | mmd = data->phy_id >> 8; |
| 1913 | if (!mmd) |
| 1914 | mmd = MDIO_DEV_PCS; |
| 1915 | else if (mmd > MDIO_DEV_XGXS) |
| 1916 | return -EINVAL; |
| 1917 | |
| 1918 | ret = |
| 1919 | phy->mdio_write(adapter, |
| 1920 | data->phy_id & 0x1f, mmd, |
| 1921 | data->reg_num, |
| 1922 | data->val_in); |
| 1923 | } else |
| 1924 | ret = |
| 1925 | phy->mdio_write(adapter, |
| 1926 | data->phy_id & 0x1f, 0, |
| 1927 | data->reg_num & 0x1f, |
| 1928 | data->val_in); |
| 1929 | break; |
| 1930 | } |
| 1931 | case SIOCCHIOCTL: |
| 1932 | return cxgb_extension_ioctl(dev, req->ifr_data); |
| 1933 | default: |
| 1934 | return -EOPNOTSUPP; |
| 1935 | } |
| 1936 | return ret; |
| 1937 | } |
| 1938 | |
| 1939 | static int cxgb_change_mtu(struct net_device *dev, int new_mtu) |
| 1940 | { |
| 1941 | int ret; |
| 1942 | struct adapter *adapter = dev->priv; |
| 1943 | struct port_info *pi = netdev_priv(dev); |
| 1944 | |
| 1945 | if (new_mtu < 81) /* accommodate SACK */ |
| 1946 | return -EINVAL; |
| 1947 | if ((ret = t3_mac_set_mtu(&pi->mac, new_mtu))) |
| 1948 | return ret; |
| 1949 | dev->mtu = new_mtu; |
| 1950 | init_port_mtus(adapter); |
| 1951 | if (adapter->params.rev == 0 && offload_running(adapter)) |
| 1952 | t3_load_mtus(adapter, adapter->params.mtus, |
| 1953 | adapter->params.a_wnd, adapter->params.b_wnd, |
| 1954 | adapter->port[0]->mtu); |
| 1955 | return 0; |
| 1956 | } |
| 1957 | |
| 1958 | static int cxgb_set_mac_addr(struct net_device *dev, void *p) |
| 1959 | { |
| 1960 | struct adapter *adapter = dev->priv; |
| 1961 | struct port_info *pi = netdev_priv(dev); |
| 1962 | struct sockaddr *addr = p; |
| 1963 | |
| 1964 | if (!is_valid_ether_addr(addr->sa_data)) |
| 1965 | return -EINVAL; |
| 1966 | |
| 1967 | memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); |
| 1968 | t3_mac_set_address(&pi->mac, 0, dev->dev_addr); |
| 1969 | if (offload_running(adapter)) |
| 1970 | write_smt_entry(adapter, pi->port_id); |
| 1971 | return 0; |
| 1972 | } |
| 1973 | |
| 1974 | /** |
| 1975 | * t3_synchronize_rx - wait for current Rx processing on a port to complete |
| 1976 | * @adap: the adapter |
| 1977 | * @p: the port |
| 1978 | * |
| 1979 | * Ensures that current Rx processing on any of the queues associated with |
| 1980 | * the given port completes before returning. We do this by acquiring and |
| 1981 | * releasing the locks of the response queues associated with the port. |
| 1982 | */ |
| 1983 | static void t3_synchronize_rx(struct adapter *adap, const struct port_info *p) |
| 1984 | { |
| 1985 | int i; |
| 1986 | |
| 1987 | for (i = 0; i < p->nqsets; i++) { |
| 1988 | struct sge_rspq *q = &adap->sge.qs[i + p->first_qset].rspq; |
| 1989 | |
| 1990 | spin_lock_irq(&q->lock); |
| 1991 | spin_unlock_irq(&q->lock); |
| 1992 | } |
| 1993 | } |
| 1994 | |
| 1995 | static void vlan_rx_register(struct net_device *dev, struct vlan_group *grp) |
| 1996 | { |
| 1997 | struct adapter *adapter = dev->priv; |
| 1998 | struct port_info *pi = netdev_priv(dev); |
| 1999 | |
| 2000 | pi->vlan_grp = grp; |
| 2001 | if (adapter->params.rev > 0) |
| 2002 | t3_set_vlan_accel(adapter, 1 << pi->port_id, grp != NULL); |
| 2003 | else { |
| 2004 | /* single control for all ports */ |
| 2005 | unsigned int i, have_vlans = 0; |
| 2006 | for_each_port(adapter, i) |
| 2007 | have_vlans |= adap2pinfo(adapter, i)->vlan_grp != NULL; |
| 2008 | |
| 2009 | t3_set_vlan_accel(adapter, 1, have_vlans); |
| 2010 | } |
| 2011 | t3_synchronize_rx(adapter, pi); |
| 2012 | } |
| 2013 | |
| 2014 | static void vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) |
| 2015 | { |
| 2016 | /* nothing */ |
| 2017 | } |
| 2018 | |
| 2019 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 2020 | static void cxgb_netpoll(struct net_device *dev) |
| 2021 | { |
| 2022 | struct adapter *adapter = dev->priv; |
| 2023 | struct sge_qset *qs = dev2qset(dev); |
| 2024 | |
| 2025 | t3_intr_handler(adapter, qs->rspq.polling) (adapter->pdev->irq, |
| 2026 | adapter); |
| 2027 | } |
| 2028 | #endif |
| 2029 | |
| 2030 | /* |
| 2031 | * Periodic accumulation of MAC statistics. |
| 2032 | */ |
| 2033 | static void mac_stats_update(struct adapter *adapter) |
| 2034 | { |
| 2035 | int i; |
| 2036 | |
| 2037 | for_each_port(adapter, i) { |
| 2038 | struct net_device *dev = adapter->port[i]; |
| 2039 | struct port_info *p = netdev_priv(dev); |
| 2040 | |
| 2041 | if (netif_running(dev)) { |
| 2042 | spin_lock(&adapter->stats_lock); |
| 2043 | t3_mac_update_stats(&p->mac); |
| 2044 | spin_unlock(&adapter->stats_lock); |
| 2045 | } |
| 2046 | } |
| 2047 | } |
| 2048 | |
| 2049 | static void check_link_status(struct adapter *adapter) |
| 2050 | { |
| 2051 | int i; |
| 2052 | |
| 2053 | for_each_port(adapter, i) { |
| 2054 | struct net_device *dev = adapter->port[i]; |
| 2055 | struct port_info *p = netdev_priv(dev); |
| 2056 | |
| 2057 | if (!(p->port_type->caps & SUPPORTED_IRQ) && netif_running(dev)) |
| 2058 | t3_link_changed(adapter, i); |
| 2059 | } |
| 2060 | } |
| 2061 | |
| 2062 | static void t3_adap_check_task(struct work_struct *work) |
| 2063 | { |
| 2064 | struct adapter *adapter = container_of(work, struct adapter, |
| 2065 | adap_check_task.work); |
| 2066 | const struct adapter_params *p = &adapter->params; |
| 2067 | |
| 2068 | adapter->check_task_cnt++; |
| 2069 | |
| 2070 | /* Check link status for PHYs without interrupts */ |
| 2071 | if (p->linkpoll_period) |
| 2072 | check_link_status(adapter); |
| 2073 | |
| 2074 | /* Accumulate MAC stats if needed */ |
| 2075 | if (!p->linkpoll_period || |
| 2076 | (adapter->check_task_cnt * p->linkpoll_period) / 10 >= |
| 2077 | p->stats_update_period) { |
| 2078 | mac_stats_update(adapter); |
| 2079 | adapter->check_task_cnt = 0; |
| 2080 | } |
| 2081 | |
| 2082 | /* Schedule the next check update if any port is active. */ |
| 2083 | spin_lock(&adapter->work_lock); |
| 2084 | if (adapter->open_device_map & PORT_MASK) |
| 2085 | schedule_chk_task(adapter); |
| 2086 | spin_unlock(&adapter->work_lock); |
| 2087 | } |
| 2088 | |
| 2089 | /* |
| 2090 | * Processes external (PHY) interrupts in process context. |
| 2091 | */ |
| 2092 | static void ext_intr_task(struct work_struct *work) |
| 2093 | { |
| 2094 | struct adapter *adapter = container_of(work, struct adapter, |
| 2095 | ext_intr_handler_task); |
| 2096 | |
| 2097 | t3_phy_intr_handler(adapter); |
| 2098 | |
| 2099 | /* Now reenable external interrupts */ |
| 2100 | spin_lock_irq(&adapter->work_lock); |
| 2101 | if (adapter->slow_intr_mask) { |
| 2102 | adapter->slow_intr_mask |= F_T3DBG; |
| 2103 | t3_write_reg(adapter, A_PL_INT_CAUSE0, F_T3DBG); |
| 2104 | t3_write_reg(adapter, A_PL_INT_ENABLE0, |
| 2105 | adapter->slow_intr_mask); |
| 2106 | } |
| 2107 | spin_unlock_irq(&adapter->work_lock); |
| 2108 | } |
| 2109 | |
| 2110 | /* |
| 2111 | * Interrupt-context handler for external (PHY) interrupts. |
| 2112 | */ |
| 2113 | void t3_os_ext_intr_handler(struct adapter *adapter) |
| 2114 | { |
| 2115 | /* |
| 2116 | * Schedule a task to handle external interrupts as they may be slow |
| 2117 | * and we use a mutex to protect MDIO registers. We disable PHY |
| 2118 | * interrupts in the meantime and let the task reenable them when |
| 2119 | * it's done. |
| 2120 | */ |
| 2121 | spin_lock(&adapter->work_lock); |
| 2122 | if (adapter->slow_intr_mask) { |
| 2123 | adapter->slow_intr_mask &= ~F_T3DBG; |
| 2124 | t3_write_reg(adapter, A_PL_INT_ENABLE0, |
| 2125 | adapter->slow_intr_mask); |
| 2126 | queue_work(cxgb3_wq, &adapter->ext_intr_handler_task); |
| 2127 | } |
| 2128 | spin_unlock(&adapter->work_lock); |
| 2129 | } |
| 2130 | |
| 2131 | void t3_fatal_err(struct adapter *adapter) |
| 2132 | { |
| 2133 | unsigned int fw_status[4]; |
| 2134 | |
| 2135 | if (adapter->flags & FULL_INIT_DONE) { |
| 2136 | t3_sge_stop(adapter); |
| 2137 | t3_intr_disable(adapter); |
| 2138 | } |
| 2139 | CH_ALERT(adapter, "encountered fatal error, operation suspended\n"); |
| 2140 | if (!t3_cim_ctl_blk_read(adapter, 0xa0, 4, fw_status)) |
| 2141 | CH_ALERT(adapter, "FW status: 0x%x, 0x%x, 0x%x, 0x%x\n", |
| 2142 | fw_status[0], fw_status[1], |
| 2143 | fw_status[2], fw_status[3]); |
| 2144 | |
| 2145 | } |
| 2146 | |
| 2147 | static int __devinit cxgb_enable_msix(struct adapter *adap) |
| 2148 | { |
| 2149 | struct msix_entry entries[SGE_QSETS + 1]; |
| 2150 | int i, err; |
| 2151 | |
| 2152 | for (i = 0; i < ARRAY_SIZE(entries); ++i) |
| 2153 | entries[i].entry = i; |
| 2154 | |
| 2155 | err = pci_enable_msix(adap->pdev, entries, ARRAY_SIZE(entries)); |
| 2156 | if (!err) { |
| 2157 | for (i = 0; i < ARRAY_SIZE(entries); ++i) |
| 2158 | adap->msix_info[i].vec = entries[i].vector; |
| 2159 | } else if (err > 0) |
| 2160 | dev_info(&adap->pdev->dev, |
| 2161 | "only %d MSI-X vectors left, not using MSI-X\n", err); |
| 2162 | return err; |
| 2163 | } |
| 2164 | |
| 2165 | static void __devinit print_port_info(struct adapter *adap, |
| 2166 | const struct adapter_info *ai) |
| 2167 | { |
| 2168 | static const char *pci_variant[] = { |
| 2169 | "PCI", "PCI-X", "PCI-X ECC", "PCI-X 266", "PCI Express" |
| 2170 | }; |
| 2171 | |
| 2172 | int i; |
| 2173 | char buf[80]; |
| 2174 | |
| 2175 | if (is_pcie(adap)) |
| 2176 | snprintf(buf, sizeof(buf), "%s x%d", |
| 2177 | pci_variant[adap->params.pci.variant], |
| 2178 | adap->params.pci.width); |
| 2179 | else |
| 2180 | snprintf(buf, sizeof(buf), "%s %dMHz/%d-bit", |
| 2181 | pci_variant[adap->params.pci.variant], |
| 2182 | adap->params.pci.speed, adap->params.pci.width); |
| 2183 | |
| 2184 | for_each_port(adap, i) { |
| 2185 | struct net_device *dev = adap->port[i]; |
| 2186 | const struct port_info *pi = netdev_priv(dev); |
| 2187 | |
| 2188 | if (!test_bit(i, &adap->registered_device_map)) |
| 2189 | continue; |
| 2190 | printk(KERN_INFO "%s: %s %s RNIC (rev %d) %s%s\n", |
| 2191 | dev->name, ai->desc, pi->port_type->desc, |
| 2192 | adap->params.rev, buf, |
| 2193 | (adap->flags & USING_MSIX) ? " MSI-X" : |
| 2194 | (adap->flags & USING_MSI) ? " MSI" : ""); |
| 2195 | if (adap->name == dev->name && adap->params.vpd.mclk) |
| 2196 | printk(KERN_INFO "%s: %uMB CM, %uMB PMTX, %uMB PMRX\n", |
| 2197 | adap->name, t3_mc7_size(&adap->cm) >> 20, |
| 2198 | t3_mc7_size(&adap->pmtx) >> 20, |
| 2199 | t3_mc7_size(&adap->pmrx) >> 20); |
| 2200 | } |
| 2201 | } |
| 2202 | |
| 2203 | static int __devinit init_one(struct pci_dev *pdev, |
| 2204 | const struct pci_device_id *ent) |
| 2205 | { |
| 2206 | static int version_printed; |
| 2207 | |
| 2208 | int i, err, pci_using_dac = 0; |
| 2209 | unsigned long mmio_start, mmio_len; |
| 2210 | const struct adapter_info *ai; |
| 2211 | struct adapter *adapter = NULL; |
| 2212 | struct port_info *pi; |
| 2213 | |
| 2214 | if (!version_printed) { |
| 2215 | printk(KERN_INFO "%s - version %s\n", DRV_DESC, DRV_VERSION); |
| 2216 | ++version_printed; |
| 2217 | } |
| 2218 | |
| 2219 | if (!cxgb3_wq) { |
| 2220 | cxgb3_wq = create_singlethread_workqueue(DRV_NAME); |
| 2221 | if (!cxgb3_wq) { |
| 2222 | printk(KERN_ERR DRV_NAME |
| 2223 | ": cannot initialize work queue\n"); |
| 2224 | return -ENOMEM; |
| 2225 | } |
| 2226 | } |
| 2227 | |
| 2228 | err = pci_request_regions(pdev, DRV_NAME); |
| 2229 | if (err) { |
| 2230 | /* Just info, some other driver may have claimed the device. */ |
| 2231 | dev_info(&pdev->dev, "cannot obtain PCI resources\n"); |
| 2232 | return err; |
| 2233 | } |
| 2234 | |
| 2235 | err = pci_enable_device(pdev); |
| 2236 | if (err) { |
| 2237 | dev_err(&pdev->dev, "cannot enable PCI device\n"); |
| 2238 | goto out_release_regions; |
| 2239 | } |
| 2240 | |
| 2241 | if (!pci_set_dma_mask(pdev, DMA_64BIT_MASK)) { |
| 2242 | pci_using_dac = 1; |
| 2243 | err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK); |
| 2244 | if (err) { |
| 2245 | dev_err(&pdev->dev, "unable to obtain 64-bit DMA for " |
| 2246 | "coherent allocations\n"); |
| 2247 | goto out_disable_device; |
| 2248 | } |
| 2249 | } else if ((err = pci_set_dma_mask(pdev, DMA_32BIT_MASK)) != 0) { |
| 2250 | dev_err(&pdev->dev, "no usable DMA configuration\n"); |
| 2251 | goto out_disable_device; |
| 2252 | } |
| 2253 | |
| 2254 | pci_set_master(pdev); |
| 2255 | |
| 2256 | mmio_start = pci_resource_start(pdev, 0); |
| 2257 | mmio_len = pci_resource_len(pdev, 0); |
| 2258 | ai = t3_get_adapter_info(ent->driver_data); |
| 2259 | |
| 2260 | adapter = kzalloc(sizeof(*adapter), GFP_KERNEL); |
| 2261 | if (!adapter) { |
| 2262 | err = -ENOMEM; |
| 2263 | goto out_disable_device; |
| 2264 | } |
| 2265 | |
| 2266 | adapter->regs = ioremap_nocache(mmio_start, mmio_len); |
| 2267 | if (!adapter->regs) { |
| 2268 | dev_err(&pdev->dev, "cannot map device registers\n"); |
| 2269 | err = -ENOMEM; |
| 2270 | goto out_free_adapter; |
| 2271 | } |
| 2272 | |
| 2273 | adapter->pdev = pdev; |
| 2274 | adapter->name = pci_name(pdev); |
| 2275 | adapter->msg_enable = dflt_msg_enable; |
| 2276 | adapter->mmio_len = mmio_len; |
| 2277 | |
| 2278 | mutex_init(&adapter->mdio_lock); |
| 2279 | spin_lock_init(&adapter->work_lock); |
| 2280 | spin_lock_init(&adapter->stats_lock); |
| 2281 | |
| 2282 | INIT_LIST_HEAD(&adapter->adapter_list); |
| 2283 | INIT_WORK(&adapter->ext_intr_handler_task, ext_intr_task); |
| 2284 | INIT_DELAYED_WORK(&adapter->adap_check_task, t3_adap_check_task); |
| 2285 | |
| 2286 | for (i = 0; i < ai->nports; ++i) { |
| 2287 | struct net_device *netdev; |
| 2288 | |
| 2289 | netdev = alloc_etherdev(sizeof(struct port_info)); |
| 2290 | if (!netdev) { |
| 2291 | err = -ENOMEM; |
| 2292 | goto out_free_dev; |
| 2293 | } |
| 2294 | |
| 2295 | SET_MODULE_OWNER(netdev); |
| 2296 | SET_NETDEV_DEV(netdev, &pdev->dev); |
| 2297 | |
| 2298 | adapter->port[i] = netdev; |
| 2299 | pi = netdev_priv(netdev); |
| 2300 | pi->rx_csum_offload = 1; |
| 2301 | pi->nqsets = 1; |
| 2302 | pi->first_qset = i; |
| 2303 | pi->activity = 0; |
| 2304 | pi->port_id = i; |
| 2305 | netif_carrier_off(netdev); |
| 2306 | netdev->irq = pdev->irq; |
| 2307 | netdev->mem_start = mmio_start; |
| 2308 | netdev->mem_end = mmio_start + mmio_len - 1; |
| 2309 | netdev->priv = adapter; |
| 2310 | netdev->features |= NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO; |
| 2311 | netdev->features |= NETIF_F_LLTX; |
| 2312 | if (pci_using_dac) |
| 2313 | netdev->features |= NETIF_F_HIGHDMA; |
| 2314 | |
| 2315 | netdev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX; |
| 2316 | netdev->vlan_rx_register = vlan_rx_register; |
| 2317 | netdev->vlan_rx_kill_vid = vlan_rx_kill_vid; |
| 2318 | |
| 2319 | netdev->open = cxgb_open; |
| 2320 | netdev->stop = cxgb_close; |
| 2321 | netdev->hard_start_xmit = t3_eth_xmit; |
| 2322 | netdev->get_stats = cxgb_get_stats; |
| 2323 | netdev->set_multicast_list = cxgb_set_rxmode; |
| 2324 | netdev->do_ioctl = cxgb_ioctl; |
| 2325 | netdev->change_mtu = cxgb_change_mtu; |
| 2326 | netdev->set_mac_address = cxgb_set_mac_addr; |
| 2327 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 2328 | netdev->poll_controller = cxgb_netpoll; |
| 2329 | #endif |
| 2330 | netdev->weight = 64; |
| 2331 | |
| 2332 | SET_ETHTOOL_OPS(netdev, &cxgb_ethtool_ops); |
| 2333 | } |
| 2334 | |
| 2335 | pci_set_drvdata(pdev, adapter->port[0]); |
| 2336 | if (t3_prep_adapter(adapter, ai, 1) < 0) { |
| 2337 | err = -ENODEV; |
| 2338 | goto out_free_dev; |
| 2339 | } |
| 2340 | |
| 2341 | /* |
| 2342 | * The card is now ready to go. If any errors occur during device |
| 2343 | * registration we do not fail the whole card but rather proceed only |
| 2344 | * with the ports we manage to register successfully. However we must |
| 2345 | * register at least one net device. |
| 2346 | */ |
| 2347 | for_each_port(adapter, i) { |
| 2348 | err = register_netdev(adapter->port[i]); |
| 2349 | if (err) |
| 2350 | dev_warn(&pdev->dev, |
| 2351 | "cannot register net device %s, skipping\n", |
| 2352 | adapter->port[i]->name); |
| 2353 | else { |
| 2354 | /* |
| 2355 | * Change the name we use for messages to the name of |
| 2356 | * the first successfully registered interface. |
| 2357 | */ |
| 2358 | if (!adapter->registered_device_map) |
| 2359 | adapter->name = adapter->port[i]->name; |
| 2360 | |
| 2361 | __set_bit(i, &adapter->registered_device_map); |
| 2362 | } |
| 2363 | } |
| 2364 | if (!adapter->registered_device_map) { |
| 2365 | dev_err(&pdev->dev, "could not register any net devices\n"); |
| 2366 | goto out_free_dev; |
| 2367 | } |
| 2368 | |
| 2369 | /* Driver's ready. Reflect it on LEDs */ |
| 2370 | t3_led_ready(adapter); |
| 2371 | |
| 2372 | if (is_offload(adapter)) { |
| 2373 | __set_bit(OFFLOAD_DEVMAP_BIT, &adapter->registered_device_map); |
| 2374 | cxgb3_adapter_ofld(adapter); |
| 2375 | } |
| 2376 | |
| 2377 | /* See what interrupts we'll be using */ |
| 2378 | if (msi > 1 && cxgb_enable_msix(adapter) == 0) |
| 2379 | adapter->flags |= USING_MSIX; |
| 2380 | else if (msi > 0 && pci_enable_msi(pdev) == 0) |
| 2381 | adapter->flags |= USING_MSI; |
| 2382 | |
| 2383 | err = sysfs_create_group(&adapter->port[0]->class_dev.kobj, |
| 2384 | &cxgb3_attr_group); |
| 2385 | |
| 2386 | print_port_info(adapter, ai); |
| 2387 | return 0; |
| 2388 | |
| 2389 | out_free_dev: |
| 2390 | iounmap(adapter->regs); |
| 2391 | for (i = ai->nports - 1; i >= 0; --i) |
| 2392 | if (adapter->port[i]) |
| 2393 | free_netdev(adapter->port[i]); |
| 2394 | |
| 2395 | out_free_adapter: |
| 2396 | kfree(adapter); |
| 2397 | |
| 2398 | out_disable_device: |
| 2399 | pci_disable_device(pdev); |
| 2400 | out_release_regions: |
| 2401 | pci_release_regions(pdev); |
| 2402 | pci_set_drvdata(pdev, NULL); |
| 2403 | return err; |
| 2404 | } |
| 2405 | |
| 2406 | static void __devexit remove_one(struct pci_dev *pdev) |
| 2407 | { |
| 2408 | struct net_device *dev = pci_get_drvdata(pdev); |
| 2409 | |
| 2410 | if (dev) { |
| 2411 | int i; |
| 2412 | struct adapter *adapter = dev->priv; |
| 2413 | |
| 2414 | t3_sge_stop(adapter); |
| 2415 | sysfs_remove_group(&adapter->port[0]->class_dev.kobj, |
| 2416 | &cxgb3_attr_group); |
| 2417 | |
| 2418 | for_each_port(adapter, i) |
| 2419 | if (test_bit(i, &adapter->registered_device_map)) |
| 2420 | unregister_netdev(adapter->port[i]); |
| 2421 | |
| 2422 | if (is_offload(adapter)) { |
| 2423 | cxgb3_adapter_unofld(adapter); |
| 2424 | if (test_bit(OFFLOAD_DEVMAP_BIT, |
| 2425 | &adapter->open_device_map)) |
| 2426 | offload_close(&adapter->tdev); |
| 2427 | } |
| 2428 | |
| 2429 | t3_free_sge_resources(adapter); |
| 2430 | cxgb_disable_msi(adapter); |
| 2431 | |
| 2432 | for (i = 0; i < ARRAY_SIZE(adapter->dummy_netdev); i++) |
| 2433 | if (adapter->dummy_netdev[i]) { |
| 2434 | free_netdev(adapter->dummy_netdev[i]); |
| 2435 | adapter->dummy_netdev[i] = NULL; |
| 2436 | } |
| 2437 | |
| 2438 | for_each_port(adapter, i) |
| 2439 | if (adapter->port[i]) |
| 2440 | free_netdev(adapter->port[i]); |
| 2441 | |
| 2442 | iounmap(adapter->regs); |
| 2443 | kfree(adapter); |
| 2444 | pci_release_regions(pdev); |
| 2445 | pci_disable_device(pdev); |
| 2446 | pci_set_drvdata(pdev, NULL); |
| 2447 | } |
| 2448 | } |
| 2449 | |
| 2450 | static struct pci_driver driver = { |
| 2451 | .name = DRV_NAME, |
| 2452 | .id_table = cxgb3_pci_tbl, |
| 2453 | .probe = init_one, |
| 2454 | .remove = __devexit_p(remove_one), |
| 2455 | }; |
| 2456 | |
| 2457 | static int __init cxgb3_init_module(void) |
| 2458 | { |
| 2459 | int ret; |
| 2460 | |
| 2461 | cxgb3_offload_init(); |
| 2462 | |
| 2463 | ret = pci_register_driver(&driver); |
| 2464 | return ret; |
| 2465 | } |
| 2466 | |
| 2467 | static void __exit cxgb3_cleanup_module(void) |
| 2468 | { |
| 2469 | pci_unregister_driver(&driver); |
| 2470 | if (cxgb3_wq) |
| 2471 | destroy_workqueue(cxgb3_wq); |
| 2472 | } |
| 2473 | |
| 2474 | module_init(cxgb3_init_module); |
| 2475 | module_exit(cxgb3_cleanup_module); |