1/* 2 * Copyright (c) 2006 - 2011 Intel Corporation. All rights reserved. 3 * Copyright (c) 2005 Open Grid Computing, Inc. All rights reserved. 4 * 5 * This software is available to you under a choice of one of two 6 * licenses. You may choose to be licensed under the terms of the GNU 7 * General Public License (GPL) Version 2, available from the file 8 * COPYING in the main directory of this source tree, or the 9 * OpenIB.org BSD license below: 10 * 11 * Redistribution and use in source and binary forms, with or 12 * without modification, are permitted provided that the following 13 * conditions are met: 14 * 15 * - Redistributions of source code must retain the above 16 * copyright notice, this list of conditions and the following 17 * disclaimer. 18 * 19 * - Redistributions in binary form must reproduce the above 20 * copyright notice, this list of conditions and the following 21 * disclaimer in the documentation and/or other materials 22 * provided with the distribution. 23 * 24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 25 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 26 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 27 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 28 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 29 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 30 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 31 * SOFTWARE. 32 */ 33 34#include <linux/module.h> 35#include <linux/moduleparam.h> 36#include <linux/netdevice.h> 37#include <linux/etherdevice.h> 38#include <linux/ethtool.h> 39#include <linux/mii.h> 40#include <linux/if_vlan.h> 41#include <linux/crc32.h> 42#include <linux/in.h> 43#include <linux/fs.h> 44#include <linux/init.h> 45#include <linux/if_arp.h> 46#include <linux/highmem.h> 47#include <linux/slab.h> 48#include <asm/io.h> 49#include <asm/irq.h> 50#include <asm/byteorder.h> 51#include <rdma/ib_smi.h> 52#include <rdma/ib_verbs.h> 53#include <rdma/ib_pack.h> 54#include <rdma/iw_cm.h> 55 56#include "nes.h" 57 58#include <net/netevent.h> 59#include <net/neighbour.h> 60#include <linux/route.h> 61#include <net/ip_fib.h> 62 63MODULE_AUTHOR("NetEffect"); 64MODULE_DESCRIPTION("NetEffect RNIC Low-level iWARP Driver"); 65MODULE_LICENSE("Dual BSD/GPL"); 66MODULE_VERSION(DRV_VERSION); 67 68int max_mtu = 9000; 69int interrupt_mod_interval = 0; 70 71/* Interoperability */ 72int mpa_version = 1; 73module_param(mpa_version, int, 0644); 74MODULE_PARM_DESC(mpa_version, "MPA version to be used int MPA Req/Resp (0 or 1)"); 75 76/* Interoperability */ 77int disable_mpa_crc = 0; 78module_param(disable_mpa_crc, int, 0644); 79MODULE_PARM_DESC(disable_mpa_crc, "Disable checking of MPA CRC"); 80 81unsigned int nes_drv_opt = NES_DRV_OPT_DISABLE_INT_MOD | NES_DRV_OPT_ENABLE_PAU; 82module_param(nes_drv_opt, int, 0644); 83MODULE_PARM_DESC(nes_drv_opt, "Driver option parameters"); 84 85unsigned int nes_debug_level = 0; 86module_param_named(debug_level, nes_debug_level, uint, 0644); 87MODULE_PARM_DESC(debug_level, "Enable debug output level"); 88 89unsigned int wqm_quanta = 0x10000; 90module_param(wqm_quanta, int, 0644); 91MODULE_PARM_DESC(wqm_quanta, "WQM quanta"); 92 93static bool limit_maxrdreqsz; 94module_param(limit_maxrdreqsz, bool, 0644); 95MODULE_PARM_DESC(limit_maxrdreqsz, "Limit max read request size to 256 Bytes"); 96 97LIST_HEAD(nes_adapter_list); 98static LIST_HEAD(nes_dev_list); 99 100atomic_t qps_destroyed; 101 102static unsigned int ee_flsh_adapter; 103static unsigned int sysfs_nonidx_addr; 104static unsigned int sysfs_idx_addr; 105 106static struct pci_device_id nes_pci_table[] = { 107 { PCI_VDEVICE(NETEFFECT, PCI_DEVICE_ID_NETEFFECT_NE020), }, 108 { PCI_VDEVICE(NETEFFECT, PCI_DEVICE_ID_NETEFFECT_NE020_KR), }, 109 {0} 110}; 111 112MODULE_DEVICE_TABLE(pci, nes_pci_table); 113 114/* registered nes netlink callbacks */ 115static struct ibnl_client_cbs nes_nl_cb_table[] = { 116 [RDMA_NL_IWPM_REG_PID] = {.dump = iwpm_register_pid_cb}, 117 [RDMA_NL_IWPM_ADD_MAPPING] = {.dump = iwpm_add_mapping_cb}, 118 [RDMA_NL_IWPM_QUERY_MAPPING] = {.dump = iwpm_add_and_query_mapping_cb}, 119 [RDMA_NL_IWPM_REMOTE_INFO] = {.dump = iwpm_remote_info_cb}, 120 [RDMA_NL_IWPM_HANDLE_ERR] = {.dump = iwpm_mapping_error_cb}, 121 [RDMA_NL_IWPM_MAPINFO] = {.dump = iwpm_mapping_info_cb}, 122 [RDMA_NL_IWPM_MAPINFO_NUM] = {.dump = iwpm_ack_mapping_info_cb} 123}; 124 125static int nes_inetaddr_event(struct notifier_block *, unsigned long, void *); 126static int nes_net_event(struct notifier_block *, unsigned long, void *); 127static int nes_notifiers_registered; 128 129 130static struct notifier_block nes_inetaddr_notifier = { 131 .notifier_call = nes_inetaddr_event 132}; 133 134static struct notifier_block nes_net_notifier = { 135 .notifier_call = nes_net_event 136}; 137 138/** 139 * nes_inetaddr_event 140 */ 141static int nes_inetaddr_event(struct notifier_block *notifier, 142 unsigned long event, void *ptr) 143{ 144 struct in_ifaddr *ifa = ptr; 145 struct net_device *event_netdev = ifa->ifa_dev->dev; 146 struct nes_device *nesdev; 147 struct net_device *netdev; 148 struct net_device *upper_dev; 149 struct nes_vnic *nesvnic; 150 unsigned int is_bonded; 151 152 nes_debug(NES_DBG_NETDEV, "nes_inetaddr_event: ip address %pI4, netmask %pI4.\n", 153 &ifa->ifa_address, &ifa->ifa_mask); 154 list_for_each_entry(nesdev, &nes_dev_list, list) { 155 nes_debug(NES_DBG_NETDEV, "Nesdev list entry = 0x%p. (%s)\n", 156 nesdev, nesdev->netdev[0]->name); 157 netdev = nesdev->netdev[0]; 158 nesvnic = netdev_priv(netdev); 159 upper_dev = netdev_master_upper_dev_get(netdev); 160 is_bonded = netif_is_bond_slave(netdev) && 161 (upper_dev == event_netdev); 162 if ((netdev == event_netdev) || is_bonded) { 163 if (nesvnic->rdma_enabled == 0) { 164 nes_debug(NES_DBG_NETDEV, "Returning without processing event for %s since" 165 " RDMA is not enabled.\n", 166 netdev->name); 167 return NOTIFY_OK; 168 } 169 /* we have ifa->ifa_address/mask here if we need it */ 170 switch (event) { 171 case NETDEV_DOWN: 172 nes_debug(NES_DBG_NETDEV, "event:DOWN\n"); 173 nes_write_indexed(nesdev, 174 NES_IDX_DST_IP_ADDR+(0x10*PCI_FUNC(nesdev->pcidev->devfn)), 0); 175 176 nes_manage_arp_cache(netdev, netdev->dev_addr, 177 ntohl(nesvnic->local_ipaddr), NES_ARP_DELETE); 178 nesvnic->local_ipaddr = 0; 179 if (is_bonded) 180 continue; 181 else 182 return NOTIFY_OK; 183 break; 184 case NETDEV_UP: 185 nes_debug(NES_DBG_NETDEV, "event:UP\n"); 186 187 if (nesvnic->local_ipaddr != 0) { 188 nes_debug(NES_DBG_NETDEV, "Interface already has local_ipaddr\n"); 189 return NOTIFY_OK; 190 } 191 /* fall through */ 192 case NETDEV_CHANGEADDR: 193 /* Add the address to the IP table */ 194 if (upper_dev) 195 nesvnic->local_ipaddr = 196 ((struct in_device *)upper_dev->ip_ptr)->ifa_list->ifa_address; 197 else 198 nesvnic->local_ipaddr = ifa->ifa_address; 199 200 nes_write_indexed(nesdev, 201 NES_IDX_DST_IP_ADDR+(0x10*PCI_FUNC(nesdev->pcidev->devfn)), 202 ntohl(nesvnic->local_ipaddr)); 203 nes_manage_arp_cache(netdev, netdev->dev_addr, 204 ntohl(nesvnic->local_ipaddr), NES_ARP_ADD); 205 if (is_bonded) 206 continue; 207 else 208 return NOTIFY_OK; 209 break; 210 default: 211 break; 212 } 213 } 214 } 215 216 return NOTIFY_DONE; 217} 218 219 220/** 221 * nes_net_event 222 */ 223static int nes_net_event(struct notifier_block *notifier, 224 unsigned long event, void *ptr) 225{ 226 struct neighbour *neigh = ptr; 227 struct nes_device *nesdev; 228 struct net_device *netdev; 229 struct nes_vnic *nesvnic; 230 231 switch (event) { 232 case NETEVENT_NEIGH_UPDATE: 233 list_for_each_entry(nesdev, &nes_dev_list, list) { 234 /* nes_debug(NES_DBG_NETDEV, "Nesdev list entry = 0x%p.\n", nesdev); */ 235 netdev = nesdev->netdev[0]; 236 nesvnic = netdev_priv(netdev); 237 if (netdev == neigh->dev) { 238 if (nesvnic->rdma_enabled == 0) { 239 nes_debug(NES_DBG_NETDEV, "Skipping device %s since no RDMA\n", 240 netdev->name); 241 } else { 242 if (neigh->nud_state & NUD_VALID) { 243 nes_manage_arp_cache(neigh->dev, neigh->ha, 244 ntohl(*(__be32 *)neigh->primary_key), NES_ARP_ADD); 245 } else { 246 nes_manage_arp_cache(neigh->dev, neigh->ha, 247 ntohl(*(__be32 *)neigh->primary_key), NES_ARP_DELETE); 248 } 249 } 250 return NOTIFY_OK; 251 } 252 } 253 break; 254 default: 255 nes_debug(NES_DBG_NETDEV, "NETEVENT_ %lu undefined\n", event); 256 break; 257 } 258 259 return NOTIFY_DONE; 260} 261 262 263/** 264 * nes_add_ref 265 */ 266void nes_add_ref(struct ib_qp *ibqp) 267{ 268 struct nes_qp *nesqp; 269 270 nesqp = to_nesqp(ibqp); 271 nes_debug(NES_DBG_QP, "Bumping refcount for QP%u. Pre-inc value = %u\n", 272 ibqp->qp_num, atomic_read(&nesqp->refcount)); 273 atomic_inc(&nesqp->refcount); 274} 275 276static void nes_cqp_rem_ref_callback(struct nes_device *nesdev, struct nes_cqp_request *cqp_request) 277{ 278 unsigned long flags; 279 struct nes_qp *nesqp = cqp_request->cqp_callback_pointer; 280 struct nes_adapter *nesadapter = nesdev->nesadapter; 281 282 atomic_inc(&qps_destroyed); 283 284 /* Free the control structures */ 285 286 if (nesqp->pbl_vbase) { 287 pci_free_consistent(nesdev->pcidev, nesqp->qp_mem_size, 288 nesqp->hwqp.q2_vbase, nesqp->hwqp.q2_pbase); 289 spin_lock_irqsave(&nesadapter->pbl_lock, flags); 290 nesadapter->free_256pbl++; 291 spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); 292 pci_free_consistent(nesdev->pcidev, 256, nesqp->pbl_vbase, nesqp->pbl_pbase); 293 nesqp->pbl_vbase = NULL; 294 295 } else { 296 pci_free_consistent(nesdev->pcidev, nesqp->qp_mem_size, 297 nesqp->hwqp.sq_vbase, nesqp->hwqp.sq_pbase); 298 } 299 nes_free_resource(nesadapter, nesadapter->allocated_qps, nesqp->hwqp.qp_id); 300 301 nesadapter->qp_table[nesqp->hwqp.qp_id-NES_FIRST_QPN] = NULL; 302 kfree(nesqp->allocated_buffer); 303 304} 305 306/** 307 * nes_rem_ref 308 */ 309void nes_rem_ref(struct ib_qp *ibqp) 310{ 311 u64 u64temp; 312 struct nes_qp *nesqp; 313 struct nes_vnic *nesvnic = to_nesvnic(ibqp->device); 314 struct nes_device *nesdev = nesvnic->nesdev; 315 struct nes_hw_cqp_wqe *cqp_wqe; 316 struct nes_cqp_request *cqp_request; 317 u32 opcode; 318 319 nesqp = to_nesqp(ibqp); 320 321 if (atomic_read(&nesqp->refcount) == 0) { 322 printk(KERN_INFO PFX "%s: Reference count already 0 for QP%d, last aeq = 0x%04X.\n", 323 __func__, ibqp->qp_num, nesqp->last_aeq); 324 BUG(); 325 } 326 327 if (atomic_dec_and_test(&nesqp->refcount)) { 328 if (nesqp->pau_mode) 329 nes_destroy_pau_qp(nesdev, nesqp); 330 331 /* Destroy the QP */ 332 cqp_request = nes_get_cqp_request(nesdev); 333 if (cqp_request == NULL) { 334 nes_debug(NES_DBG_QP, "Failed to get a cqp_request.\n"); 335 return; 336 } 337 cqp_request->waiting = 0; 338 cqp_request->callback = 1; 339 cqp_request->cqp_callback = nes_cqp_rem_ref_callback; 340 cqp_request->cqp_callback_pointer = nesqp; 341 cqp_wqe = &cqp_request->cqp_wqe; 342 343 nes_fill_init_cqp_wqe(cqp_wqe, nesdev); 344 opcode = NES_CQP_DESTROY_QP | NES_CQP_QP_TYPE_IWARP; 345 346 if (nesqp->hte_added) { 347 opcode |= NES_CQP_QP_DEL_HTE; 348 nesqp->hte_added = 0; 349 } 350 set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX, opcode); 351 set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_ID_IDX, nesqp->hwqp.qp_id); 352 u64temp = (u64)nesqp->nesqp_context_pbase; 353 set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_QP_WQE_CONTEXT_LOW_IDX, u64temp); 354 nes_post_cqp_request(nesdev, cqp_request); 355 } 356} 357 358 359/** 360 * nes_get_qp 361 */ 362struct ib_qp *nes_get_qp(struct ib_device *device, int qpn) 363{ 364 struct nes_vnic *nesvnic = to_nesvnic(device); 365 struct nes_device *nesdev = nesvnic->nesdev; 366 struct nes_adapter *nesadapter = nesdev->nesadapter; 367 368 if ((qpn < NES_FIRST_QPN) || (qpn >= (NES_FIRST_QPN + nesadapter->max_qp))) 369 return NULL; 370 371 return &nesadapter->qp_table[qpn - NES_FIRST_QPN]->ibqp; 372} 373 374 375/** 376 * nes_print_macaddr 377 */ 378static void nes_print_macaddr(struct net_device *netdev) 379{ 380 nes_debug(NES_DBG_INIT, "%s: %pM, IRQ %u\n", 381 netdev->name, netdev->dev_addr, netdev->irq); 382} 383 384/** 385 * nes_interrupt - handle interrupts 386 */ 387static irqreturn_t nes_interrupt(int irq, void *dev_id) 388{ 389 struct nes_device *nesdev = (struct nes_device *)dev_id; 390 int handled = 0; 391 u32 int_mask; 392 u32 int_req; 393 u32 int_stat; 394 u32 intf_int_stat; 395 u32 timer_stat; 396 397 if (nesdev->msi_enabled) { 398 /* No need to read the interrupt pending register if msi is enabled */ 399 handled = 1; 400 } else { 401 if (unlikely(nesdev->nesadapter->hw_rev == NE020_REV)) { 402 /* Master interrupt enable provides synchronization for kicking off bottom half 403 when interrupt sharing is going on */ 404 int_mask = nes_read32(nesdev->regs + NES_INT_MASK); 405 if (int_mask & 0x80000000) { 406 /* Check interrupt status to see if this might be ours */ 407 int_stat = nes_read32(nesdev->regs + NES_INT_STAT); 408 int_req = nesdev->int_req; 409 if (int_stat&int_req) { 410 /* if interesting CEQ or AEQ is pending, claim the interrupt */ 411 if ((int_stat&int_req) & (~(NES_INT_TIMER|NES_INT_INTF))) { 412 handled = 1; 413 } else { 414 if (((int_stat & int_req) & NES_INT_TIMER) == NES_INT_TIMER) { 415 /* Timer might be running but might be for another function */ 416 timer_stat = nes_read32(nesdev->regs + NES_TIMER_STAT); 417 if ((timer_stat & nesdev->timer_int_req) != 0) { 418 handled = 1; 419 } 420 } 421 if ((((int_stat & int_req) & NES_INT_INTF) == NES_INT_INTF) && 422 (handled == 0)) { 423 intf_int_stat = nes_read32(nesdev->regs+NES_INTF_INT_STAT); 424 if ((intf_int_stat & nesdev->intf_int_req) != 0) { 425 handled = 1; 426 } 427 } 428 } 429 if (handled) { 430 nes_write32(nesdev->regs+NES_INT_MASK, int_mask & (~0x80000000)); 431 int_mask = nes_read32(nesdev->regs+NES_INT_MASK); 432 /* Save off the status to save an additional read */ 433 nesdev->int_stat = int_stat; 434 nesdev->napi_isr_ran = 1; 435 } 436 } 437 } 438 } else { 439 handled = nes_read32(nesdev->regs+NES_INT_PENDING); 440 } 441 } 442 443 if (handled) { 444 445 if (nes_napi_isr(nesdev) == 0) { 446 tasklet_schedule(&nesdev->dpc_tasklet); 447 448 } 449 return IRQ_HANDLED; 450 } else { 451 return IRQ_NONE; 452 } 453} 454 455 456/** 457 * nes_probe - Device initialization 458 */ 459static int nes_probe(struct pci_dev *pcidev, const struct pci_device_id *ent) 460{ 461 struct net_device *netdev = NULL; 462 struct nes_device *nesdev = NULL; 463 int ret = 0; 464 void __iomem *mmio_regs = NULL; 465 u8 hw_rev; 466 467 assert(pcidev != NULL); 468 assert(ent != NULL); 469 470 printk(KERN_INFO PFX "NetEffect RNIC driver v%s loading. (%s)\n", 471 DRV_VERSION, pci_name(pcidev)); 472 473 ret = pci_enable_device(pcidev); 474 if (ret) { 475 printk(KERN_ERR PFX "Unable to enable PCI device. (%s)\n", pci_name(pcidev)); 476 goto bail0; 477 } 478 479 nes_debug(NES_DBG_INIT, "BAR0 (@0x%08lX) size = 0x%lX bytes\n", 480 (long unsigned int)pci_resource_start(pcidev, BAR_0), 481 (long unsigned int)pci_resource_len(pcidev, BAR_0)); 482 nes_debug(NES_DBG_INIT, "BAR1 (@0x%08lX) size = 0x%lX bytes\n", 483 (long unsigned int)pci_resource_start(pcidev, BAR_1), 484 (long unsigned int)pci_resource_len(pcidev, BAR_1)); 485 486 /* Make sure PCI base addr are MMIO */ 487 if (!(pci_resource_flags(pcidev, BAR_0) & IORESOURCE_MEM) || 488 !(pci_resource_flags(pcidev, BAR_1) & IORESOURCE_MEM)) { 489 printk(KERN_ERR PFX "PCI regions not an MMIO resource\n"); 490 ret = -ENODEV; 491 goto bail1; 492 } 493 494 /* Reserve PCI I/O and memory resources */ 495 ret = pci_request_regions(pcidev, DRV_NAME); 496 if (ret) { 497 printk(KERN_ERR PFX "Unable to request regions. (%s)\n", pci_name(pcidev)); 498 goto bail1; 499 } 500 501 if ((sizeof(dma_addr_t) > 4)) { 502 ret = pci_set_dma_mask(pcidev, DMA_BIT_MASK(64)); 503 if (ret < 0) { 504 printk(KERN_ERR PFX "64b DMA mask configuration failed\n"); 505 goto bail2; 506 } 507 ret = pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(64)); 508 if (ret) { 509 printk(KERN_ERR PFX "64b DMA consistent mask configuration failed\n"); 510 goto bail2; 511 } 512 } else { 513 ret = pci_set_dma_mask(pcidev, DMA_BIT_MASK(32)); 514 if (ret < 0) { 515 printk(KERN_ERR PFX "32b DMA mask configuration failed\n"); 516 goto bail2; 517 } 518 ret = pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(32)); 519 if (ret) { 520 printk(KERN_ERR PFX "32b DMA consistent mask configuration failed\n"); 521 goto bail2; 522 } 523 } 524 525 pci_set_master(pcidev); 526 527 /* Allocate hardware structure */ 528 nesdev = kzalloc(sizeof(struct nes_device), GFP_KERNEL); 529 if (!nesdev) { 530 printk(KERN_ERR PFX "%s: Unable to alloc hardware struct\n", pci_name(pcidev)); 531 ret = -ENOMEM; 532 goto bail2; 533 } 534 535 nes_debug(NES_DBG_INIT, "Allocated nes device at %p\n", nesdev); 536 nesdev->pcidev = pcidev; 537 pci_set_drvdata(pcidev, nesdev); 538 539 pci_read_config_byte(pcidev, 0x0008, &hw_rev); 540 nes_debug(NES_DBG_INIT, "hw_rev=%u\n", hw_rev); 541 542 spin_lock_init(&nesdev->indexed_regs_lock); 543 544 /* Remap the PCI registers in adapter BAR0 to kernel VA space */ 545 mmio_regs = ioremap_nocache(pci_resource_start(pcidev, BAR_0), 546 pci_resource_len(pcidev, BAR_0)); 547 if (mmio_regs == NULL) { 548 printk(KERN_ERR PFX "Unable to remap BAR0\n"); 549 ret = -EIO; 550 goto bail3; 551 } 552 nesdev->regs = mmio_regs; 553 nesdev->index_reg = 0x50 + (PCI_FUNC(pcidev->devfn)*8) + mmio_regs; 554 555 /* Ensure interrupts are disabled */ 556 nes_write32(nesdev->regs+NES_INT_MASK, 0x7fffffff); 557 558 if (nes_drv_opt & NES_DRV_OPT_ENABLE_MSI) { 559 if (!pci_enable_msi(nesdev->pcidev)) { 560 nesdev->msi_enabled = 1; 561 nes_debug(NES_DBG_INIT, "MSI is enabled for device %s\n", 562 pci_name(pcidev)); 563 } else { 564 nes_debug(NES_DBG_INIT, "MSI is disabled by linux for device %s\n", 565 pci_name(pcidev)); 566 } 567 } else { 568 nes_debug(NES_DBG_INIT, "MSI not requested due to driver options for device %s\n", 569 pci_name(pcidev)); 570 } 571 572 nesdev->csr_start = pci_resource_start(nesdev->pcidev, BAR_0); 573 nesdev->doorbell_region = pci_resource_start(nesdev->pcidev, BAR_1); 574 575 /* Init the adapter */ 576 nesdev->nesadapter = nes_init_adapter(nesdev, hw_rev); 577 if (!nesdev->nesadapter) { 578 printk(KERN_ERR PFX "Unable to initialize adapter.\n"); 579 ret = -ENOMEM; 580 goto bail5; 581 } 582 nesdev->nesadapter->et_rx_coalesce_usecs_irq = interrupt_mod_interval; 583 nesdev->nesadapter->wqm_quanta = wqm_quanta; 584 585 /* nesdev->base_doorbell_index = 586 nesdev->nesadapter->pd_config_base[PCI_FUNC(nesdev->pcidev->devfn)]; */ 587 nesdev->base_doorbell_index = 1; 588 nesdev->doorbell_start = nesdev->nesadapter->doorbell_start; 589 if (nesdev->nesadapter->phy_type[0] == NES_PHY_TYPE_PUMA_1G) { 590 switch (PCI_FUNC(nesdev->pcidev->devfn) % 591 nesdev->nesadapter->port_count) { 592 case 1: 593 nesdev->mac_index = 2; 594 break; 595 case 2: 596 nesdev->mac_index = 1; 597 break; 598 case 3: 599 nesdev->mac_index = 3; 600 break; 601 case 0: 602 default: 603 nesdev->mac_index = 0; 604 } 605 } else { 606 nesdev->mac_index = PCI_FUNC(nesdev->pcidev->devfn) % 607 nesdev->nesadapter->port_count; 608 } 609 610 if ((limit_maxrdreqsz || 611 ((nesdev->nesadapter->phy_type[0] == NES_PHY_TYPE_GLADIUS) && 612 (hw_rev == NE020_REV1))) && 613 (pcie_get_readrq(pcidev) > 256)) { 614 if (pcie_set_readrq(pcidev, 256)) 615 printk(KERN_ERR PFX "Unable to set max read request" 616 " to 256 bytes\n"); 617 else 618 nes_debug(NES_DBG_INIT, "Max read request size set" 619 " to 256 bytes\n"); 620 } 621 622 tasklet_init(&nesdev->dpc_tasklet, nes_dpc, (unsigned long)nesdev); 623 624 /* bring up the Control QP */ 625 if (nes_init_cqp(nesdev)) { 626 ret = -ENODEV; 627 goto bail6; 628 } 629 630 /* Arm the CCQ */ 631 nes_write32(nesdev->regs+NES_CQE_ALLOC, NES_CQE_ALLOC_NOTIFY_NEXT | 632 PCI_FUNC(nesdev->pcidev->devfn)); 633 nes_read32(nesdev->regs+NES_CQE_ALLOC); 634 635 /* Enable the interrupts */ 636 nesdev->int_req = (0x101 << PCI_FUNC(nesdev->pcidev->devfn)) | 637 (1 << (PCI_FUNC(nesdev->pcidev->devfn)+16)); 638 if (PCI_FUNC(nesdev->pcidev->devfn) < 4) { 639 nesdev->int_req |= (1 << (PCI_FUNC(nesdev->mac_index)+24)); 640 } 641 642 /* TODO: This really should be the first driver to load, not function 0 */ 643 if (PCI_FUNC(nesdev->pcidev->devfn) == 0) { 644 /* pick up PCI and critical errors if the first driver to load */ 645 nesdev->intf_int_req = NES_INTF_INT_PCIERR | NES_INTF_INT_CRITERR; 646 nesdev->int_req |= NES_INT_INTF; 647 } else { 648 nesdev->intf_int_req = 0; 649 } 650 nesdev->intf_int_req |= (1 << (PCI_FUNC(nesdev->pcidev->devfn)+16)); 651 nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS0, 0); 652 nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS1, 0); 653 nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS2, 0x00001265); 654 nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS4, 0x18021804); 655 656 nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS3, 0x17801790); 657 658 /* deal with both periodic and one_shot */ 659 nesdev->timer_int_req = 0x101 << PCI_FUNC(nesdev->pcidev->devfn); 660 nesdev->nesadapter->timer_int_req |= nesdev->timer_int_req; 661 nes_debug(NES_DBG_INIT, "setting int_req for function %u, nesdev = 0x%04X, adapter = 0x%04X\n", 662 PCI_FUNC(nesdev->pcidev->devfn), 663 nesdev->timer_int_req, nesdev->nesadapter->timer_int_req); 664 665 nes_write32(nesdev->regs+NES_INTF_INT_MASK, ~(nesdev->intf_int_req)); 666 667 list_add_tail(&nesdev->list, &nes_dev_list); 668 669 /* Request an interrupt line for the driver */ 670 ret = request_irq(pcidev->irq, nes_interrupt, IRQF_SHARED, DRV_NAME, nesdev); 671 if (ret) { 672 printk(KERN_ERR PFX "%s: requested IRQ %u is busy\n", 673 pci_name(pcidev), pcidev->irq); 674 goto bail65; 675 } 676 677 nes_write32(nesdev->regs+NES_INT_MASK, ~nesdev->int_req); 678 679 if (nes_notifiers_registered == 0) { 680 register_inetaddr_notifier(&nes_inetaddr_notifier); 681 register_netevent_notifier(&nes_net_notifier); 682 } 683 nes_notifiers_registered++; 684 685 if (ibnl_add_client(RDMA_NL_NES, RDMA_NL_IWPM_NUM_OPS, nes_nl_cb_table)) 686 printk(KERN_ERR PFX "%s[%u]: Failed to add netlink callback\n", 687 __func__, __LINE__); 688 689 ret = iwpm_init(RDMA_NL_NES); 690 if (ret) { 691 printk(KERN_ERR PFX "%s: port mapper initialization failed\n", 692 pci_name(pcidev)); 693 goto bail7; 694 } 695 696 INIT_DELAYED_WORK(&nesdev->work, nes_recheck_link_status); 697 698 /* Initialize network devices */ 699 netdev = nes_netdev_init(nesdev, mmio_regs); 700 if (netdev == NULL) { 701 ret = -ENOMEM; 702 goto bail7; 703 } 704 705 /* Register network device */ 706 ret = register_netdev(netdev); 707 if (ret) { 708 printk(KERN_ERR PFX "Unable to register netdev, ret = %d\n", ret); 709 nes_netdev_destroy(netdev); 710 goto bail7; 711 } 712 713 nes_print_macaddr(netdev); 714 715 nesdev->netdev_count++; 716 nesdev->nesadapter->netdev_count++; 717 718 printk(KERN_INFO PFX "%s: NetEffect RNIC driver successfully loaded.\n", 719 pci_name(pcidev)); 720 return 0; 721 722 bail7: 723 printk(KERN_ERR PFX "bail7\n"); 724 while (nesdev->netdev_count > 0) { 725 nesdev->netdev_count--; 726 nesdev->nesadapter->netdev_count--; 727 728 unregister_netdev(nesdev->netdev[nesdev->netdev_count]); 729 nes_netdev_destroy(nesdev->netdev[nesdev->netdev_count]); 730 } 731 732 nes_debug(NES_DBG_INIT, "netdev_count=%d, nesadapter->netdev_count=%d\n", 733 nesdev->netdev_count, nesdev->nesadapter->netdev_count); 734 ibnl_remove_client(RDMA_NL_NES); 735 736 nes_notifiers_registered--; 737 if (nes_notifiers_registered == 0) { 738 unregister_netevent_notifier(&nes_net_notifier); 739 unregister_inetaddr_notifier(&nes_inetaddr_notifier); 740 } 741 742 list_del(&nesdev->list); 743 nes_destroy_cqp(nesdev); 744 745 bail65: 746 printk(KERN_ERR PFX "bail65\n"); 747 free_irq(pcidev->irq, nesdev); 748 if (nesdev->msi_enabled) { 749 pci_disable_msi(pcidev); 750 } 751 bail6: 752 printk(KERN_ERR PFX "bail6\n"); 753 tasklet_kill(&nesdev->dpc_tasklet); 754 /* Deallocate the Adapter Structure */ 755 nes_destroy_adapter(nesdev->nesadapter); 756 757 bail5: 758 printk(KERN_ERR PFX "bail5\n"); 759 iounmap(nesdev->regs); 760 761 bail3: 762 printk(KERN_ERR PFX "bail3\n"); 763 kfree(nesdev); 764 765 bail2: 766 pci_release_regions(pcidev); 767 768 bail1: 769 pci_disable_device(pcidev); 770 771 bail0: 772 return ret; 773} 774 775 776/** 777 * nes_remove - unload from kernel 778 */ 779static void nes_remove(struct pci_dev *pcidev) 780{ 781 struct nes_device *nesdev = pci_get_drvdata(pcidev); 782 struct net_device *netdev; 783 int netdev_index = 0; 784 unsigned long flags; 785 786 if (nesdev->netdev_count) { 787 netdev = nesdev->netdev[netdev_index]; 788 if (netdev) { 789 netif_stop_queue(netdev); 790 unregister_netdev(netdev); 791 nes_netdev_destroy(netdev); 792 793 nesdev->netdev[netdev_index] = NULL; 794 nesdev->netdev_count--; 795 nesdev->nesadapter->netdev_count--; 796 } 797 } 798 ibnl_remove_client(RDMA_NL_NES); 799 iwpm_exit(RDMA_NL_NES); 800 801 nes_notifiers_registered--; 802 if (nes_notifiers_registered == 0) { 803 unregister_netevent_notifier(&nes_net_notifier); 804 unregister_inetaddr_notifier(&nes_inetaddr_notifier); 805 } 806 807 list_del(&nesdev->list); 808 nes_destroy_cqp(nesdev); 809 810 free_irq(pcidev->irq, nesdev); 811 tasklet_kill(&nesdev->dpc_tasklet); 812 813 spin_lock_irqsave(&nesdev->nesadapter->phy_lock, flags); 814 if (nesdev->link_recheck) { 815 spin_unlock_irqrestore(&nesdev->nesadapter->phy_lock, flags); 816 cancel_delayed_work_sync(&nesdev->work); 817 } else { 818 spin_unlock_irqrestore(&nesdev->nesadapter->phy_lock, flags); 819 } 820 821 /* Deallocate the Adapter Structure */ 822 nes_destroy_adapter(nesdev->nesadapter); 823 824 if (nesdev->msi_enabled) { 825 pci_disable_msi(pcidev); 826 } 827 828 iounmap(nesdev->regs); 829 kfree(nesdev); 830 831 /* nes_debug(NES_DBG_SHUTDOWN, "calling pci_release_regions.\n"); */ 832 pci_release_regions(pcidev); 833 pci_disable_device(pcidev); 834 pci_set_drvdata(pcidev, NULL); 835} 836 837 838static struct pci_driver nes_pci_driver = { 839 .name = DRV_NAME, 840 .id_table = nes_pci_table, 841 .probe = nes_probe, 842 .remove = nes_remove, 843}; 844 845static ssize_t nes_show_adapter(struct device_driver *ddp, char *buf) 846{ 847 unsigned int devfn = 0xffffffff; 848 unsigned char bus_number = 0xff; 849 unsigned int i = 0; 850 struct nes_device *nesdev; 851 852 list_for_each_entry(nesdev, &nes_dev_list, list) { 853 if (i == ee_flsh_adapter) { 854 devfn = nesdev->pcidev->devfn; 855 bus_number = nesdev->pcidev->bus->number; 856 break; 857 } 858 i++; 859 } 860 861 return snprintf(buf, PAGE_SIZE, "%x:%x\n", bus_number, devfn); 862} 863 864static ssize_t nes_store_adapter(struct device_driver *ddp, 865 const char *buf, size_t count) 866{ 867 char *p = (char *)buf; 868 869 ee_flsh_adapter = simple_strtoul(p, &p, 10); 870 return strnlen(buf, count); 871} 872 873static ssize_t nes_show_ee_cmd(struct device_driver *ddp, char *buf) 874{ 875 u32 eeprom_cmd = 0xdead; 876 u32 i = 0; 877 struct nes_device *nesdev; 878 879 list_for_each_entry(nesdev, &nes_dev_list, list) { 880 if (i == ee_flsh_adapter) { 881 eeprom_cmd = nes_read32(nesdev->regs + NES_EEPROM_COMMAND); 882 break; 883 } 884 i++; 885 } 886 return snprintf(buf, PAGE_SIZE, "0x%x\n", eeprom_cmd); 887} 888 889static ssize_t nes_store_ee_cmd(struct device_driver *ddp, 890 const char *buf, size_t count) 891{ 892 char *p = (char *)buf; 893 u32 val; 894 u32 i = 0; 895 struct nes_device *nesdev; 896 897 if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') { 898 val = simple_strtoul(p, &p, 16); 899 list_for_each_entry(nesdev, &nes_dev_list, list) { 900 if (i == ee_flsh_adapter) { 901 nes_write32(nesdev->regs + NES_EEPROM_COMMAND, val); 902 break; 903 } 904 i++; 905 } 906 } 907 return strnlen(buf, count); 908} 909 910static ssize_t nes_show_ee_data(struct device_driver *ddp, char *buf) 911{ 912 u32 eeprom_data = 0xdead; 913 u32 i = 0; 914 struct nes_device *nesdev; 915 916 list_for_each_entry(nesdev, &nes_dev_list, list) { 917 if (i == ee_flsh_adapter) { 918 eeprom_data = nes_read32(nesdev->regs + NES_EEPROM_DATA); 919 break; 920 } 921 i++; 922 } 923 924 return snprintf(buf, PAGE_SIZE, "0x%x\n", eeprom_data); 925} 926 927static ssize_t nes_store_ee_data(struct device_driver *ddp, 928 const char *buf, size_t count) 929{ 930 char *p = (char *)buf; 931 u32 val; 932 u32 i = 0; 933 struct nes_device *nesdev; 934 935 if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') { 936 val = simple_strtoul(p, &p, 16); 937 list_for_each_entry(nesdev, &nes_dev_list, list) { 938 if (i == ee_flsh_adapter) { 939 nes_write32(nesdev->regs + NES_EEPROM_DATA, val); 940 break; 941 } 942 i++; 943 } 944 } 945 return strnlen(buf, count); 946} 947 948static ssize_t nes_show_flash_cmd(struct device_driver *ddp, char *buf) 949{ 950 u32 flash_cmd = 0xdead; 951 u32 i = 0; 952 struct nes_device *nesdev; 953 954 list_for_each_entry(nesdev, &nes_dev_list, list) { 955 if (i == ee_flsh_adapter) { 956 flash_cmd = nes_read32(nesdev->regs + NES_FLASH_COMMAND); 957 break; 958 } 959 i++; 960 } 961 962 return snprintf(buf, PAGE_SIZE, "0x%x\n", flash_cmd); 963} 964 965static ssize_t nes_store_flash_cmd(struct device_driver *ddp, 966 const char *buf, size_t count) 967{ 968 char *p = (char *)buf; 969 u32 val; 970 u32 i = 0; 971 struct nes_device *nesdev; 972 973 if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') { 974 val = simple_strtoul(p, &p, 16); 975 list_for_each_entry(nesdev, &nes_dev_list, list) { 976 if (i == ee_flsh_adapter) { 977 nes_write32(nesdev->regs + NES_FLASH_COMMAND, val); 978 break; 979 } 980 i++; 981 } 982 } 983 return strnlen(buf, count); 984} 985 986static ssize_t nes_show_flash_data(struct device_driver *ddp, char *buf) 987{ 988 u32 flash_data = 0xdead; 989 u32 i = 0; 990 struct nes_device *nesdev; 991 992 list_for_each_entry(nesdev, &nes_dev_list, list) { 993 if (i == ee_flsh_adapter) { 994 flash_data = nes_read32(nesdev->regs + NES_FLASH_DATA); 995 break; 996 } 997 i++; 998 } 999 1000 return snprintf(buf, PAGE_SIZE, "0x%x\n", flash_data); 1001} 1002 1003static ssize_t nes_store_flash_data(struct device_driver *ddp, 1004 const char *buf, size_t count) 1005{ 1006 char *p = (char *)buf; 1007 u32 val; 1008 u32 i = 0; 1009 struct nes_device *nesdev; 1010 1011 if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') { 1012 val = simple_strtoul(p, &p, 16); 1013 list_for_each_entry(nesdev, &nes_dev_list, list) { 1014 if (i == ee_flsh_adapter) { 1015 nes_write32(nesdev->regs + NES_FLASH_DATA, val); 1016 break; 1017 } 1018 i++; 1019 } 1020 } 1021 return strnlen(buf, count); 1022} 1023 1024static ssize_t nes_show_nonidx_addr(struct device_driver *ddp, char *buf) 1025{ 1026 return snprintf(buf, PAGE_SIZE, "0x%x\n", sysfs_nonidx_addr); 1027} 1028 1029static ssize_t nes_store_nonidx_addr(struct device_driver *ddp, 1030 const char *buf, size_t count) 1031{ 1032 char *p = (char *)buf; 1033 1034 if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') 1035 sysfs_nonidx_addr = simple_strtoul(p, &p, 16); 1036 1037 return strnlen(buf, count); 1038} 1039 1040static ssize_t nes_show_nonidx_data(struct device_driver *ddp, char *buf) 1041{ 1042 u32 nonidx_data = 0xdead; 1043 u32 i = 0; 1044 struct nes_device *nesdev; 1045 1046 list_for_each_entry(nesdev, &nes_dev_list, list) { 1047 if (i == ee_flsh_adapter) { 1048 nonidx_data = nes_read32(nesdev->regs + sysfs_nonidx_addr); 1049 break; 1050 } 1051 i++; 1052 } 1053 1054 return snprintf(buf, PAGE_SIZE, "0x%x\n", nonidx_data); 1055} 1056 1057static ssize_t nes_store_nonidx_data(struct device_driver *ddp, 1058 const char *buf, size_t count) 1059{ 1060 char *p = (char *)buf; 1061 u32 val; 1062 u32 i = 0; 1063 struct nes_device *nesdev; 1064 1065 if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') { 1066 val = simple_strtoul(p, &p, 16); 1067 list_for_each_entry(nesdev, &nes_dev_list, list) { 1068 if (i == ee_flsh_adapter) { 1069 nes_write32(nesdev->regs + sysfs_nonidx_addr, val); 1070 break; 1071 } 1072 i++; 1073 } 1074 } 1075 return strnlen(buf, count); 1076} 1077 1078static ssize_t nes_show_idx_addr(struct device_driver *ddp, char *buf) 1079{ 1080 return snprintf(buf, PAGE_SIZE, "0x%x\n", sysfs_idx_addr); 1081} 1082 1083static ssize_t nes_store_idx_addr(struct device_driver *ddp, 1084 const char *buf, size_t count) 1085{ 1086 char *p = (char *)buf; 1087 1088 if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') 1089 sysfs_idx_addr = simple_strtoul(p, &p, 16); 1090 1091 return strnlen(buf, count); 1092} 1093 1094static ssize_t nes_show_idx_data(struct device_driver *ddp, char *buf) 1095{ 1096 u32 idx_data = 0xdead; 1097 u32 i = 0; 1098 struct nes_device *nesdev; 1099 1100 list_for_each_entry(nesdev, &nes_dev_list, list) { 1101 if (i == ee_flsh_adapter) { 1102 idx_data = nes_read_indexed(nesdev, sysfs_idx_addr); 1103 break; 1104 } 1105 i++; 1106 } 1107 1108 return snprintf(buf, PAGE_SIZE, "0x%x\n", idx_data); 1109} 1110 1111static ssize_t nes_store_idx_data(struct device_driver *ddp, 1112 const char *buf, size_t count) 1113{ 1114 char *p = (char *)buf; 1115 u32 val; 1116 u32 i = 0; 1117 struct nes_device *nesdev; 1118 1119 if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') { 1120 val = simple_strtoul(p, &p, 16); 1121 list_for_each_entry(nesdev, &nes_dev_list, list) { 1122 if (i == ee_flsh_adapter) { 1123 nes_write_indexed(nesdev, sysfs_idx_addr, val); 1124 break; 1125 } 1126 i++; 1127 } 1128 } 1129 return strnlen(buf, count); 1130} 1131 1132 1133/** 1134 * nes_show_wqm_quanta 1135 */ 1136static ssize_t nes_show_wqm_quanta(struct device_driver *ddp, char *buf) 1137{ 1138 u32 wqm_quanta_value = 0xdead; 1139 u32 i = 0; 1140 struct nes_device *nesdev; 1141 1142 list_for_each_entry(nesdev, &nes_dev_list, list) { 1143 if (i == ee_flsh_adapter) { 1144 wqm_quanta_value = nesdev->nesadapter->wqm_quanta; 1145 break; 1146 } 1147 i++; 1148 } 1149 1150 return snprintf(buf, PAGE_SIZE, "0x%X\n", wqm_quanta_value); 1151} 1152 1153 1154/** 1155 * nes_store_wqm_quanta 1156 */ 1157static ssize_t nes_store_wqm_quanta(struct device_driver *ddp, 1158 const char *buf, size_t count) 1159{ 1160 unsigned long wqm_quanta_value; 1161 u32 wqm_config1; 1162 u32 i = 0; 1163 struct nes_device *nesdev; 1164 1165 if (kstrtoul(buf, 0, &wqm_quanta_value) < 0) 1166 return -EINVAL; 1167 1168 list_for_each_entry(nesdev, &nes_dev_list, list) { 1169 if (i == ee_flsh_adapter) { 1170 nesdev->nesadapter->wqm_quanta = wqm_quanta_value; 1171 wqm_config1 = nes_read_indexed(nesdev, 1172 NES_IDX_WQM_CONFIG1); 1173 nes_write_indexed(nesdev, NES_IDX_WQM_CONFIG1, 1174 ((wqm_quanta_value << 1) | 1175 (wqm_config1 & 0x00000001))); 1176 break; 1177 } 1178 i++; 1179 } 1180 return strnlen(buf, count); 1181} 1182 1183static DRIVER_ATTR(adapter, S_IRUSR | S_IWUSR, 1184 nes_show_adapter, nes_store_adapter); 1185static DRIVER_ATTR(eeprom_cmd, S_IRUSR | S_IWUSR, 1186 nes_show_ee_cmd, nes_store_ee_cmd); 1187static DRIVER_ATTR(eeprom_data, S_IRUSR | S_IWUSR, 1188 nes_show_ee_data, nes_store_ee_data); 1189static DRIVER_ATTR(flash_cmd, S_IRUSR | S_IWUSR, 1190 nes_show_flash_cmd, nes_store_flash_cmd); 1191static DRIVER_ATTR(flash_data, S_IRUSR | S_IWUSR, 1192 nes_show_flash_data, nes_store_flash_data); 1193static DRIVER_ATTR(nonidx_addr, S_IRUSR | S_IWUSR, 1194 nes_show_nonidx_addr, nes_store_nonidx_addr); 1195static DRIVER_ATTR(nonidx_data, S_IRUSR | S_IWUSR, 1196 nes_show_nonidx_data, nes_store_nonidx_data); 1197static DRIVER_ATTR(idx_addr, S_IRUSR | S_IWUSR, 1198 nes_show_idx_addr, nes_store_idx_addr); 1199static DRIVER_ATTR(idx_data, S_IRUSR | S_IWUSR, 1200 nes_show_idx_data, nes_store_idx_data); 1201static DRIVER_ATTR(wqm_quanta, S_IRUSR | S_IWUSR, 1202 nes_show_wqm_quanta, nes_store_wqm_quanta); 1203 1204static int nes_create_driver_sysfs(struct pci_driver *drv) 1205{ 1206 int error; 1207 error = driver_create_file(&drv->driver, &driver_attr_adapter); 1208 error |= driver_create_file(&drv->driver, &driver_attr_eeprom_cmd); 1209 error |= driver_create_file(&drv->driver, &driver_attr_eeprom_data); 1210 error |= driver_create_file(&drv->driver, &driver_attr_flash_cmd); 1211 error |= driver_create_file(&drv->driver, &driver_attr_flash_data); 1212 error |= driver_create_file(&drv->driver, &driver_attr_nonidx_addr); 1213 error |= driver_create_file(&drv->driver, &driver_attr_nonidx_data); 1214 error |= driver_create_file(&drv->driver, &driver_attr_idx_addr); 1215 error |= driver_create_file(&drv->driver, &driver_attr_idx_data); 1216 error |= driver_create_file(&drv->driver, &driver_attr_wqm_quanta); 1217 return error; 1218} 1219 1220static void nes_remove_driver_sysfs(struct pci_driver *drv) 1221{ 1222 driver_remove_file(&drv->driver, &driver_attr_adapter); 1223 driver_remove_file(&drv->driver, &driver_attr_eeprom_cmd); 1224 driver_remove_file(&drv->driver, &driver_attr_eeprom_data); 1225 driver_remove_file(&drv->driver, &driver_attr_flash_cmd); 1226 driver_remove_file(&drv->driver, &driver_attr_flash_data); 1227 driver_remove_file(&drv->driver, &driver_attr_nonidx_addr); 1228 driver_remove_file(&drv->driver, &driver_attr_nonidx_data); 1229 driver_remove_file(&drv->driver, &driver_attr_idx_addr); 1230 driver_remove_file(&drv->driver, &driver_attr_idx_data); 1231 driver_remove_file(&drv->driver, &driver_attr_wqm_quanta); 1232} 1233 1234/** 1235 * nes_init_module - module initialization entry point 1236 */ 1237static int __init nes_init_module(void) 1238{ 1239 int retval; 1240 int retval1; 1241 1242 retval = nes_cm_start(); 1243 if (retval) { 1244 printk(KERN_ERR PFX "Unable to start NetEffect iWARP CM.\n"); 1245 return retval; 1246 } 1247 retval = pci_register_driver(&nes_pci_driver); 1248 if (retval >= 0) { 1249 retval1 = nes_create_driver_sysfs(&nes_pci_driver); 1250 if (retval1 < 0) 1251 printk(KERN_ERR PFX "Unable to create NetEffect sys files.\n"); 1252 } 1253 return retval; 1254} 1255 1256 1257/** 1258 * nes_exit_module - module unload entry point 1259 */ 1260static void __exit nes_exit_module(void) 1261{ 1262 nes_cm_stop(); 1263 nes_remove_driver_sysfs(&nes_pci_driver); 1264 1265 pci_unregister_driver(&nes_pci_driver); 1266} 1267 1268 1269module_init(nes_init_module); 1270module_exit(nes_exit_module); 1271