Glenn Streiff | 3c2d774 | 2008-02-04 20:20:45 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2006 - 2008 NetEffect, Inc. 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 <asm/io.h> |
| 48 | #include <asm/irq.h> |
| 49 | #include <asm/byteorder.h> |
| 50 | #include <rdma/ib_smi.h> |
| 51 | #include <rdma/ib_verbs.h> |
| 52 | #include <rdma/ib_pack.h> |
| 53 | #include <rdma/iw_cm.h> |
| 54 | |
| 55 | #include "nes.h" |
| 56 | |
| 57 | #include <net/netevent.h> |
| 58 | #include <net/neighbour.h> |
| 59 | #include <linux/route.h> |
| 60 | #include <net/ip_fib.h> |
| 61 | |
| 62 | MODULE_AUTHOR("NetEffect"); |
| 63 | MODULE_DESCRIPTION("NetEffect RNIC Low-level iWARP Driver"); |
| 64 | MODULE_LICENSE("Dual BSD/GPL"); |
| 65 | MODULE_VERSION(DRV_VERSION); |
| 66 | |
| 67 | int max_mtu = 9000; |
| 68 | int nics_per_function = 1; |
| 69 | int interrupt_mod_interval = 0; |
| 70 | |
| 71 | |
| 72 | /* Interoperability */ |
| 73 | int mpa_version = 1; |
| 74 | module_param(mpa_version, int, 0); |
| 75 | MODULE_PARM_DESC(mpa_version, "MPA version to be used int MPA Req/Resp (0 or 1)"); |
| 76 | |
| 77 | /* Interoperability */ |
| 78 | int disable_mpa_crc = 0; |
| 79 | module_param(disable_mpa_crc, int, 0); |
| 80 | MODULE_PARM_DESC(disable_mpa_crc, "Disable checking of MPA CRC"); |
| 81 | |
| 82 | unsigned int send_first = 0; |
| 83 | module_param(send_first, int, 0); |
| 84 | MODULE_PARM_DESC(send_first, "Send RDMA Message First on Active Connection"); |
| 85 | |
| 86 | |
| 87 | unsigned int nes_drv_opt = 0; |
| 88 | module_param(nes_drv_opt, int, 0); |
| 89 | MODULE_PARM_DESC(nes_drv_opt, "Driver option parameters"); |
| 90 | |
| 91 | unsigned int nes_debug_level = 0; |
| 92 | module_param_named(debug_level, nes_debug_level, uint, 0644); |
| 93 | MODULE_PARM_DESC(debug_level, "Enable debug output level"); |
| 94 | |
| 95 | LIST_HEAD(nes_adapter_list); |
| 96 | LIST_HEAD(nes_dev_list); |
| 97 | |
| 98 | atomic_t qps_destroyed; |
| 99 | atomic_t cqp_reqs_allocated; |
| 100 | atomic_t cqp_reqs_freed; |
| 101 | atomic_t cqp_reqs_dynallocated; |
| 102 | atomic_t cqp_reqs_dynfreed; |
| 103 | atomic_t cqp_reqs_queued; |
| 104 | atomic_t cqp_reqs_redriven; |
| 105 | |
| 106 | static void nes_print_macaddr(struct net_device *netdev); |
| 107 | static irqreturn_t nes_interrupt(int, void *); |
| 108 | static int __devinit nes_probe(struct pci_dev *, const struct pci_device_id *); |
| 109 | static void __devexit nes_remove(struct pci_dev *); |
| 110 | static int __init nes_init_module(void); |
| 111 | static void __exit nes_exit_module(void); |
| 112 | static unsigned int ee_flsh_adapter; |
| 113 | static unsigned int sysfs_nonidx_addr; |
| 114 | static unsigned int sysfs_idx_addr; |
| 115 | |
| 116 | static struct pci_device_id nes_pci_table[] = { |
| 117 | {PCI_VENDOR_ID_NETEFFECT, PCI_DEVICE_ID_NETEFFECT_NE020, PCI_ANY_ID, PCI_ANY_ID}, |
| 118 | {0} |
| 119 | }; |
| 120 | |
| 121 | MODULE_DEVICE_TABLE(pci, nes_pci_table); |
| 122 | |
| 123 | static int nes_inetaddr_event(struct notifier_block *, unsigned long, void *); |
| 124 | static int nes_net_event(struct notifier_block *, unsigned long, void *); |
| 125 | static int nes_notifiers_registered; |
| 126 | |
| 127 | |
| 128 | static struct notifier_block nes_inetaddr_notifier = { |
| 129 | .notifier_call = nes_inetaddr_event |
| 130 | }; |
| 131 | |
| 132 | static struct notifier_block nes_net_notifier = { |
| 133 | .notifier_call = nes_net_event |
| 134 | }; |
| 135 | |
| 136 | |
| 137 | |
| 138 | |
| 139 | /** |
| 140 | * nes_inetaddr_event |
| 141 | */ |
| 142 | static int nes_inetaddr_event(struct notifier_block *notifier, |
| 143 | unsigned long event, void *ptr) |
| 144 | { |
| 145 | struct in_ifaddr *ifa = ptr; |
| 146 | struct net_device *event_netdev = ifa->ifa_dev->dev; |
| 147 | struct nes_device *nesdev; |
| 148 | struct net_device *netdev; |
| 149 | struct nes_vnic *nesvnic; |
| 150 | unsigned int addr; |
| 151 | unsigned int mask; |
| 152 | |
| 153 | addr = ntohl(ifa->ifa_address); |
| 154 | mask = ntohl(ifa->ifa_mask); |
| 155 | nes_debug(NES_DBG_NETDEV, "nes_inetaddr_event: ip address %08X, netmask %08X.\n", |
| 156 | addr, mask); |
| 157 | list_for_each_entry(nesdev, &nes_dev_list, list) { |
| 158 | nes_debug(NES_DBG_NETDEV, "Nesdev list entry = 0x%p. (%s)\n", |
| 159 | nesdev, nesdev->netdev[0]->name); |
| 160 | netdev = nesdev->netdev[0]; |
| 161 | nesvnic = netdev_priv(netdev); |
| 162 | if (netdev == event_netdev) { |
| 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 | return NOTIFY_OK; |
| 180 | break; |
| 181 | case NETDEV_UP: |
| 182 | nes_debug(NES_DBG_NETDEV, "event:UP\n"); |
| 183 | |
| 184 | if (nesvnic->local_ipaddr != 0) { |
| 185 | nes_debug(NES_DBG_NETDEV, "Interface already has local_ipaddr\n"); |
| 186 | return NOTIFY_OK; |
| 187 | } |
| 188 | /* Add the address to the IP table */ |
| 189 | nesvnic->local_ipaddr = ifa->ifa_address; |
| 190 | |
| 191 | nes_write_indexed(nesdev, |
| 192 | NES_IDX_DST_IP_ADDR+(0x10*PCI_FUNC(nesdev->pcidev->devfn)), |
| 193 | ntohl(ifa->ifa_address)); |
| 194 | nes_manage_arp_cache(netdev, netdev->dev_addr, |
| 195 | ntohl(nesvnic->local_ipaddr), NES_ARP_ADD); |
| 196 | return NOTIFY_OK; |
| 197 | break; |
| 198 | default: |
| 199 | break; |
| 200 | } |
| 201 | } |
| 202 | } |
| 203 | |
| 204 | return NOTIFY_DONE; |
| 205 | } |
| 206 | |
| 207 | |
| 208 | /** |
| 209 | * nes_net_event |
| 210 | */ |
| 211 | static int nes_net_event(struct notifier_block *notifier, |
| 212 | unsigned long event, void *ptr) |
| 213 | { |
| 214 | struct neighbour *neigh = ptr; |
| 215 | struct nes_device *nesdev; |
| 216 | struct net_device *netdev; |
| 217 | struct nes_vnic *nesvnic; |
| 218 | |
| 219 | switch (event) { |
| 220 | case NETEVENT_NEIGH_UPDATE: |
| 221 | list_for_each_entry(nesdev, &nes_dev_list, list) { |
| 222 | /* nes_debug(NES_DBG_NETDEV, "Nesdev list entry = 0x%p.\n", nesdev); */ |
| 223 | netdev = nesdev->netdev[0]; |
| 224 | nesvnic = netdev_priv(netdev); |
| 225 | if (netdev == neigh->dev) { |
| 226 | if (nesvnic->rdma_enabled == 0) { |
| 227 | nes_debug(NES_DBG_NETDEV, "Skipping device %s since no RDMA\n", |
| 228 | netdev->name); |
| 229 | } else { |
| 230 | if (neigh->nud_state & NUD_VALID) { |
| 231 | nes_manage_arp_cache(neigh->dev, neigh->ha, |
| 232 | ntohl(*(__be32 *)neigh->primary_key), NES_ARP_ADD); |
| 233 | } else { |
| 234 | nes_manage_arp_cache(neigh->dev, neigh->ha, |
| 235 | ntohl(*(__be32 *)neigh->primary_key), NES_ARP_DELETE); |
| 236 | } |
| 237 | } |
| 238 | return NOTIFY_OK; |
| 239 | } |
| 240 | } |
| 241 | break; |
| 242 | default: |
| 243 | nes_debug(NES_DBG_NETDEV, "NETEVENT_ %lu undefined\n", event); |
| 244 | break; |
| 245 | } |
| 246 | |
| 247 | return NOTIFY_DONE; |
| 248 | } |
| 249 | |
| 250 | |
| 251 | /** |
| 252 | * nes_add_ref |
| 253 | */ |
| 254 | void nes_add_ref(struct ib_qp *ibqp) |
| 255 | { |
| 256 | struct nes_qp *nesqp; |
| 257 | |
| 258 | nesqp = to_nesqp(ibqp); |
| 259 | nes_debug(NES_DBG_QP, "Bumping refcount for QP%u. Pre-inc value = %u\n", |
| 260 | ibqp->qp_num, atomic_read(&nesqp->refcount)); |
| 261 | atomic_inc(&nesqp->refcount); |
| 262 | } |
| 263 | |
| 264 | static void nes_cqp_rem_ref_callback(struct nes_device *nesdev, struct nes_cqp_request *cqp_request) |
| 265 | { |
| 266 | unsigned long flags; |
| 267 | struct nes_qp *nesqp = cqp_request->cqp_callback_pointer; |
| 268 | struct nes_adapter *nesadapter = nesdev->nesadapter; |
| 269 | u32 qp_id; |
| 270 | |
| 271 | atomic_inc(&qps_destroyed); |
| 272 | |
| 273 | /* Free the control structures */ |
| 274 | |
| 275 | qp_id = nesqp->hwqp.qp_id; |
| 276 | if (nesqp->pbl_vbase) { |
| 277 | pci_free_consistent(nesdev->pcidev, nesqp->qp_mem_size, |
| 278 | nesqp->hwqp.q2_vbase, nesqp->hwqp.q2_pbase); |
| 279 | spin_lock_irqsave(&nesadapter->pbl_lock, flags); |
| 280 | nesadapter->free_256pbl++; |
| 281 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); |
| 282 | pci_free_consistent(nesdev->pcidev, 256, nesqp->pbl_vbase, nesqp->pbl_pbase); |
| 283 | nesqp->pbl_vbase = NULL; |
| 284 | |
| 285 | } else { |
| 286 | pci_free_consistent(nesdev->pcidev, nesqp->qp_mem_size, |
| 287 | nesqp->hwqp.sq_vbase, nesqp->hwqp.sq_pbase); |
| 288 | } |
| 289 | nes_free_resource(nesadapter, nesadapter->allocated_qps, nesqp->hwqp.qp_id); |
| 290 | |
| 291 | kfree(nesqp->allocated_buffer); |
| 292 | |
| 293 | } |
| 294 | |
| 295 | /** |
| 296 | * nes_rem_ref |
| 297 | */ |
| 298 | void nes_rem_ref(struct ib_qp *ibqp) |
| 299 | { |
| 300 | u64 u64temp; |
| 301 | struct nes_qp *nesqp; |
| 302 | struct nes_vnic *nesvnic = to_nesvnic(ibqp->device); |
| 303 | struct nes_device *nesdev = nesvnic->nesdev; |
| 304 | struct nes_adapter *nesadapter = nesdev->nesadapter; |
| 305 | struct nes_hw_cqp_wqe *cqp_wqe; |
| 306 | struct nes_cqp_request *cqp_request; |
| 307 | u32 opcode; |
| 308 | |
| 309 | nesqp = to_nesqp(ibqp); |
| 310 | |
| 311 | if (atomic_read(&nesqp->refcount) == 0) { |
| 312 | printk(KERN_INFO PFX "%s: Reference count already 0 for QP%d, last aeq = 0x%04X.\n", |
| 313 | __FUNCTION__, ibqp->qp_num, nesqp->last_aeq); |
| 314 | BUG(); |
| 315 | } |
| 316 | |
| 317 | if (atomic_dec_and_test(&nesqp->refcount)) { |
| 318 | nesadapter->qp_table[nesqp->hwqp.qp_id-NES_FIRST_QPN] = NULL; |
| 319 | |
| 320 | /* Destroy the QP */ |
| 321 | cqp_request = nes_get_cqp_request(nesdev); |
| 322 | if (cqp_request == NULL) { |
| 323 | nes_debug(NES_DBG_QP, "Failed to get a cqp_request.\n"); |
| 324 | return; |
| 325 | } |
| 326 | cqp_request->waiting = 0; |
| 327 | cqp_request->callback = 1; |
| 328 | cqp_request->cqp_callback = nes_cqp_rem_ref_callback; |
| 329 | cqp_request->cqp_callback_pointer = nesqp; |
| 330 | cqp_wqe = &cqp_request->cqp_wqe; |
| 331 | |
| 332 | nes_fill_init_cqp_wqe(cqp_wqe, nesdev); |
| 333 | opcode = NES_CQP_DESTROY_QP | NES_CQP_QP_TYPE_IWARP; |
| 334 | |
| 335 | if (nesqp->hte_added) { |
| 336 | opcode |= NES_CQP_QP_DEL_HTE; |
| 337 | nesqp->hte_added = 0; |
| 338 | } |
| 339 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX, opcode); |
| 340 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_ID_IDX, nesqp->hwqp.qp_id); |
| 341 | u64temp = (u64)nesqp->nesqp_context_pbase; |
| 342 | set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_QP_WQE_CONTEXT_LOW_IDX, u64temp); |
| 343 | nes_post_cqp_request(nesdev, cqp_request, NES_CQP_REQUEST_RING_DOORBELL); |
| 344 | } |
| 345 | } |
| 346 | |
| 347 | |
| 348 | /** |
| 349 | * nes_get_qp |
| 350 | */ |
| 351 | struct ib_qp *nes_get_qp(struct ib_device *device, int qpn) |
| 352 | { |
| 353 | struct nes_vnic *nesvnic = to_nesvnic(device); |
| 354 | struct nes_device *nesdev = nesvnic->nesdev; |
| 355 | struct nes_adapter *nesadapter = nesdev->nesadapter; |
| 356 | |
| 357 | if ((qpn < NES_FIRST_QPN) || (qpn >= (NES_FIRST_QPN + nesadapter->max_qp))) |
| 358 | return NULL; |
| 359 | |
| 360 | return &nesadapter->qp_table[qpn - NES_FIRST_QPN]->ibqp; |
| 361 | } |
| 362 | |
| 363 | |
| 364 | /** |
| 365 | * nes_print_macaddr |
| 366 | */ |
| 367 | static void nes_print_macaddr(struct net_device *netdev) |
| 368 | { |
| 369 | nes_debug(NES_DBG_INIT, "%s: MAC %02X:%02X:%02X:%02X:%02X:%02X, IRQ %u\n", |
| 370 | netdev->name, |
| 371 | netdev->dev_addr[0], netdev->dev_addr[1], netdev->dev_addr[2], |
| 372 | netdev->dev_addr[3], netdev->dev_addr[4], netdev->dev_addr[5], |
| 373 | netdev->irq); |
| 374 | } |
| 375 | |
| 376 | |
| 377 | /** |
| 378 | * nes_interrupt - handle interrupts |
| 379 | */ |
| 380 | static irqreturn_t nes_interrupt(int irq, void *dev_id) |
| 381 | { |
| 382 | struct nes_device *nesdev = (struct nes_device *)dev_id; |
| 383 | int handled = 0; |
| 384 | u32 int_mask; |
| 385 | u32 int_req; |
| 386 | u32 int_stat; |
| 387 | u32 intf_int_stat; |
| 388 | u32 timer_stat; |
| 389 | |
| 390 | if (nesdev->msi_enabled) { |
| 391 | /* No need to read the interrupt pending register if msi is enabled */ |
| 392 | handled = 1; |
| 393 | } else { |
| 394 | if (unlikely(nesdev->nesadapter->hw_rev == NE020_REV)) { |
| 395 | /* Master interrupt enable provides synchronization for kicking off bottom half |
| 396 | when interrupt sharing is going on */ |
| 397 | int_mask = nes_read32(nesdev->regs + NES_INT_MASK); |
| 398 | if (int_mask & 0x80000000) { |
| 399 | /* Check interrupt status to see if this might be ours */ |
| 400 | int_stat = nes_read32(nesdev->regs + NES_INT_STAT); |
| 401 | int_req = nesdev->int_req; |
| 402 | if (int_stat&int_req) { |
| 403 | /* if interesting CEQ or AEQ is pending, claim the interrupt */ |
| 404 | if ((int_stat&int_req) & (~(NES_INT_TIMER|NES_INT_INTF))) { |
| 405 | handled = 1; |
| 406 | } else { |
| 407 | if (((int_stat & int_req) & NES_INT_TIMER) == NES_INT_TIMER) { |
| 408 | /* Timer might be running but might be for another function */ |
| 409 | timer_stat = nes_read32(nesdev->regs + NES_TIMER_STAT); |
| 410 | if ((timer_stat & nesdev->timer_int_req) != 0) { |
| 411 | handled = 1; |
| 412 | } |
| 413 | } |
| 414 | if ((((int_stat & int_req) & NES_INT_INTF) == NES_INT_INTF) && |
| 415 | (handled == 0)) { |
| 416 | intf_int_stat = nes_read32(nesdev->regs+NES_INTF_INT_STAT); |
| 417 | if ((intf_int_stat & nesdev->intf_int_req) != 0) { |
| 418 | handled = 1; |
| 419 | } |
| 420 | } |
| 421 | } |
| 422 | if (handled) { |
| 423 | nes_write32(nesdev->regs+NES_INT_MASK, int_mask & (~0x80000000)); |
| 424 | int_mask = nes_read32(nesdev->regs+NES_INT_MASK); |
| 425 | /* Save off the status to save an additional read */ |
| 426 | nesdev->int_stat = int_stat; |
| 427 | nesdev->napi_isr_ran = 1; |
| 428 | } |
| 429 | } |
| 430 | } |
| 431 | } else { |
| 432 | handled = nes_read32(nesdev->regs+NES_INT_PENDING); |
| 433 | } |
| 434 | } |
| 435 | |
| 436 | if (handled) { |
| 437 | |
| 438 | if (nes_napi_isr(nesdev) == 0) { |
| 439 | tasklet_schedule(&nesdev->dpc_tasklet); |
| 440 | |
| 441 | } |
| 442 | return IRQ_HANDLED; |
| 443 | } else { |
| 444 | return IRQ_NONE; |
| 445 | } |
| 446 | } |
| 447 | |
| 448 | |
| 449 | /** |
| 450 | * nes_probe - Device initialization |
| 451 | */ |
| 452 | static int __devinit nes_probe(struct pci_dev *pcidev, const struct pci_device_id *ent) |
| 453 | { |
| 454 | struct net_device *netdev = NULL; |
| 455 | struct nes_device *nesdev = NULL; |
| 456 | int ret = 0; |
| 457 | struct nes_vnic *nesvnic = NULL; |
| 458 | void __iomem *mmio_regs = NULL; |
| 459 | u8 hw_rev; |
| 460 | |
| 461 | assert(pcidev != NULL); |
| 462 | assert(ent != NULL); |
| 463 | |
| 464 | printk(KERN_INFO PFX "NetEffect RNIC driver v%s loading. (%s)\n", |
| 465 | DRV_VERSION, pci_name(pcidev)); |
| 466 | |
| 467 | ret = pci_enable_device(pcidev); |
| 468 | if (ret) { |
| 469 | printk(KERN_ERR PFX "Unable to enable PCI device. (%s)\n", pci_name(pcidev)); |
| 470 | goto bail0; |
| 471 | } |
| 472 | |
| 473 | nes_debug(NES_DBG_INIT, "BAR0 (@0x%08lX) size = 0x%lX bytes\n", |
| 474 | (long unsigned int)pci_resource_start(pcidev, BAR_0), |
| 475 | (long unsigned int)pci_resource_len(pcidev, BAR_0)); |
| 476 | nes_debug(NES_DBG_INIT, "BAR1 (@0x%08lX) size = 0x%lX bytes\n", |
| 477 | (long unsigned int)pci_resource_start(pcidev, BAR_1), |
| 478 | (long unsigned int)pci_resource_len(pcidev, BAR_1)); |
| 479 | |
| 480 | /* Make sure PCI base addr are MMIO */ |
| 481 | if (!(pci_resource_flags(pcidev, BAR_0) & IORESOURCE_MEM) || |
| 482 | !(pci_resource_flags(pcidev, BAR_1) & IORESOURCE_MEM)) { |
| 483 | printk(KERN_ERR PFX "PCI regions not an MMIO resource\n"); |
| 484 | ret = -ENODEV; |
| 485 | goto bail1; |
| 486 | } |
| 487 | |
| 488 | /* Reserve PCI I/O and memory resources */ |
| 489 | ret = pci_request_regions(pcidev, DRV_NAME); |
| 490 | if (ret) { |
| 491 | printk(KERN_ERR PFX "Unable to request regions. (%s)\n", pci_name(pcidev)); |
| 492 | goto bail1; |
| 493 | } |
| 494 | |
| 495 | if ((sizeof(dma_addr_t) > 4)) { |
| 496 | ret = pci_set_dma_mask(pcidev, DMA_64BIT_MASK); |
| 497 | if (ret < 0) { |
| 498 | printk(KERN_ERR PFX "64b DMA mask configuration failed\n"); |
| 499 | goto bail2; |
| 500 | } |
| 501 | ret = pci_set_consistent_dma_mask(pcidev, DMA_64BIT_MASK); |
| 502 | if (ret) { |
| 503 | printk(KERN_ERR PFX "64b DMA consistent mask configuration failed\n"); |
| 504 | goto bail2; |
| 505 | } |
| 506 | } else { |
| 507 | ret = pci_set_dma_mask(pcidev, DMA_32BIT_MASK); |
| 508 | if (ret < 0) { |
| 509 | printk(KERN_ERR PFX "32b DMA mask configuration failed\n"); |
| 510 | goto bail2; |
| 511 | } |
| 512 | ret = pci_set_consistent_dma_mask(pcidev, DMA_32BIT_MASK); |
| 513 | if (ret) { |
| 514 | printk(KERN_ERR PFX "32b DMA consistent mask configuration failed\n"); |
| 515 | goto bail2; |
| 516 | } |
| 517 | } |
| 518 | |
| 519 | pci_set_master(pcidev); |
| 520 | |
| 521 | /* Allocate hardware structure */ |
| 522 | nesdev = kzalloc(sizeof(struct nes_device), GFP_KERNEL); |
| 523 | if (!nesdev) { |
| 524 | printk(KERN_ERR PFX "%s: Unable to alloc hardware struct\n", pci_name(pcidev)); |
| 525 | ret = -ENOMEM; |
| 526 | goto bail2; |
| 527 | } |
| 528 | |
| 529 | nes_debug(NES_DBG_INIT, "Allocated nes device at %p\n", nesdev); |
| 530 | nesdev->pcidev = pcidev; |
| 531 | pci_set_drvdata(pcidev, nesdev); |
| 532 | |
| 533 | pci_read_config_byte(pcidev, 0x0008, &hw_rev); |
| 534 | nes_debug(NES_DBG_INIT, "hw_rev=%u\n", hw_rev); |
| 535 | |
| 536 | spin_lock_init(&nesdev->indexed_regs_lock); |
| 537 | |
| 538 | /* Remap the PCI registers in adapter BAR0 to kernel VA space */ |
| 539 | mmio_regs = ioremap_nocache(pci_resource_start(pcidev, BAR_0), sizeof(mmio_regs)); |
| 540 | if (mmio_regs == NULL) { |
| 541 | printk(KERN_ERR PFX "Unable to remap BAR0\n"); |
| 542 | ret = -EIO; |
| 543 | goto bail3; |
| 544 | } |
| 545 | nesdev->regs = mmio_regs; |
| 546 | nesdev->index_reg = 0x50 + (PCI_FUNC(pcidev->devfn)*8) + mmio_regs; |
| 547 | |
| 548 | /* Ensure interrupts are disabled */ |
| 549 | nes_write32(nesdev->regs+NES_INT_MASK, 0x7fffffff); |
| 550 | |
| 551 | if (nes_drv_opt & NES_DRV_OPT_ENABLE_MSI) { |
| 552 | if (!pci_enable_msi(nesdev->pcidev)) { |
| 553 | nesdev->msi_enabled = 1; |
| 554 | nes_debug(NES_DBG_INIT, "MSI is enabled for device %s\n", |
| 555 | pci_name(pcidev)); |
| 556 | } else { |
| 557 | nes_debug(NES_DBG_INIT, "MSI is disabled by linux for device %s\n", |
| 558 | pci_name(pcidev)); |
| 559 | } |
| 560 | } else { |
| 561 | nes_debug(NES_DBG_INIT, "MSI not requested due to driver options for device %s\n", |
| 562 | pci_name(pcidev)); |
| 563 | } |
| 564 | |
| 565 | nesdev->csr_start = pci_resource_start(nesdev->pcidev, BAR_0); |
| 566 | nesdev->doorbell_region = pci_resource_start(nesdev->pcidev, BAR_1); |
| 567 | |
| 568 | /* Init the adapter */ |
| 569 | nesdev->nesadapter = nes_init_adapter(nesdev, hw_rev); |
| 570 | nesdev->nesadapter->et_rx_coalesce_usecs_irq = interrupt_mod_interval; |
| 571 | if (!nesdev->nesadapter) { |
| 572 | printk(KERN_ERR PFX "Unable to initialize adapter.\n"); |
| 573 | ret = -ENOMEM; |
| 574 | goto bail5; |
| 575 | } |
| 576 | |
| 577 | /* nesdev->base_doorbell_index = |
| 578 | nesdev->nesadapter->pd_config_base[PCI_FUNC(nesdev->pcidev->devfn)]; */ |
| 579 | nesdev->base_doorbell_index = 1; |
| 580 | nesdev->doorbell_start = nesdev->nesadapter->doorbell_start; |
| 581 | nesdev->mac_index = PCI_FUNC(nesdev->pcidev->devfn) % nesdev->nesadapter->port_count; |
| 582 | |
| 583 | tasklet_init(&nesdev->dpc_tasklet, nes_dpc, (unsigned long)nesdev); |
| 584 | |
| 585 | /* bring up the Control QP */ |
| 586 | if (nes_init_cqp(nesdev)) { |
| 587 | ret = -ENODEV; |
| 588 | goto bail6; |
| 589 | } |
| 590 | |
| 591 | /* Arm the CCQ */ |
| 592 | nes_write32(nesdev->regs+NES_CQE_ALLOC, NES_CQE_ALLOC_NOTIFY_NEXT | |
| 593 | PCI_FUNC(nesdev->pcidev->devfn)); |
| 594 | nes_read32(nesdev->regs+NES_CQE_ALLOC); |
| 595 | |
| 596 | /* Enable the interrupts */ |
| 597 | nesdev->int_req = (0x101 << PCI_FUNC(nesdev->pcidev->devfn)) | |
| 598 | (1 << (PCI_FUNC(nesdev->pcidev->devfn)+16)); |
| 599 | if (PCI_FUNC(nesdev->pcidev->devfn) < 4) { |
| 600 | nesdev->int_req |= (1 << (PCI_FUNC(nesdev->pcidev->devfn)+24)); |
| 601 | } |
| 602 | |
| 603 | /* TODO: This really should be the first driver to load, not function 0 */ |
| 604 | if (PCI_FUNC(nesdev->pcidev->devfn) == 0) { |
| 605 | /* pick up PCI and critical errors if the first driver to load */ |
| 606 | nesdev->intf_int_req = NES_INTF_INT_PCIERR | NES_INTF_INT_CRITERR; |
| 607 | nesdev->int_req |= NES_INT_INTF; |
| 608 | } else { |
| 609 | nesdev->intf_int_req = 0; |
| 610 | } |
| 611 | nesdev->intf_int_req |= (1 << (PCI_FUNC(nesdev->pcidev->devfn)+16)); |
| 612 | nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS0, 0); |
| 613 | nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS1, 0); |
| 614 | nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS2, 0x00001265); |
| 615 | nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS4, 0x18021804); |
| 616 | |
| 617 | nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS3, 0x17801790); |
| 618 | |
| 619 | /* deal with both periodic and one_shot */ |
| 620 | nesdev->timer_int_req = 0x101 << PCI_FUNC(nesdev->pcidev->devfn); |
| 621 | nesdev->nesadapter->timer_int_req |= nesdev->timer_int_req; |
| 622 | nes_debug(NES_DBG_INIT, "setting int_req for function %u, nesdev = 0x%04X, adapter = 0x%04X\n", |
| 623 | PCI_FUNC(nesdev->pcidev->devfn), |
| 624 | nesdev->timer_int_req, nesdev->nesadapter->timer_int_req); |
| 625 | |
| 626 | nes_write32(nesdev->regs+NES_INTF_INT_MASK, ~(nesdev->intf_int_req)); |
| 627 | |
| 628 | list_add_tail(&nesdev->list, &nes_dev_list); |
| 629 | |
| 630 | /* Request an interrupt line for the driver */ |
| 631 | ret = request_irq(pcidev->irq, nes_interrupt, IRQF_SHARED, DRV_NAME, nesdev); |
| 632 | if (ret) { |
| 633 | printk(KERN_ERR PFX "%s: requested IRQ %u is busy\n", |
| 634 | pci_name(pcidev), pcidev->irq); |
| 635 | goto bail65; |
| 636 | } |
| 637 | |
| 638 | nes_write32(nesdev->regs+NES_INT_MASK, ~nesdev->int_req); |
| 639 | |
| 640 | if (nes_notifiers_registered == 0) { |
| 641 | register_inetaddr_notifier(&nes_inetaddr_notifier); |
| 642 | register_netevent_notifier(&nes_net_notifier); |
| 643 | } |
| 644 | nes_notifiers_registered++; |
| 645 | |
| 646 | /* Initialize network devices */ |
| 647 | if ((netdev = nes_netdev_init(nesdev, mmio_regs)) == NULL) { |
| 648 | goto bail7; |
| 649 | } |
| 650 | |
| 651 | /* Register network device */ |
| 652 | ret = register_netdev(netdev); |
| 653 | if (ret) { |
| 654 | printk(KERN_ERR PFX "Unable to register netdev, ret = %d\n", ret); |
| 655 | nes_netdev_destroy(netdev); |
| 656 | goto bail7; |
| 657 | } |
| 658 | |
| 659 | nes_print_macaddr(netdev); |
| 660 | /* create a CM core for this netdev */ |
| 661 | nesvnic = netdev_priv(netdev); |
| 662 | |
| 663 | nesdev->netdev_count++; |
| 664 | nesdev->nesadapter->netdev_count++; |
| 665 | |
| 666 | |
| 667 | printk(KERN_ERR PFX "%s: NetEffect RNIC driver successfully loaded.\n", |
| 668 | pci_name(pcidev)); |
| 669 | return 0; |
| 670 | |
| 671 | bail7: |
| 672 | printk(KERN_ERR PFX "bail7\n"); |
| 673 | while (nesdev->netdev_count > 0) { |
| 674 | nesdev->netdev_count--; |
| 675 | nesdev->nesadapter->netdev_count--; |
| 676 | |
| 677 | unregister_netdev(nesdev->netdev[nesdev->netdev_count]); |
| 678 | nes_netdev_destroy(nesdev->netdev[nesdev->netdev_count]); |
| 679 | } |
| 680 | |
| 681 | nes_debug(NES_DBG_INIT, "netdev_count=%d, nesadapter->netdev_count=%d\n", |
| 682 | nesdev->netdev_count, nesdev->nesadapter->netdev_count); |
| 683 | |
| 684 | nes_notifiers_registered--; |
| 685 | if (nes_notifiers_registered == 0) { |
| 686 | unregister_netevent_notifier(&nes_net_notifier); |
| 687 | unregister_inetaddr_notifier(&nes_inetaddr_notifier); |
| 688 | } |
| 689 | |
| 690 | list_del(&nesdev->list); |
| 691 | nes_destroy_cqp(nesdev); |
| 692 | |
| 693 | bail65: |
| 694 | printk(KERN_ERR PFX "bail65\n"); |
| 695 | free_irq(pcidev->irq, nesdev); |
| 696 | if (nesdev->msi_enabled) { |
| 697 | pci_disable_msi(pcidev); |
| 698 | } |
| 699 | bail6: |
| 700 | printk(KERN_ERR PFX "bail6\n"); |
| 701 | tasklet_kill(&nesdev->dpc_tasklet); |
| 702 | /* Deallocate the Adapter Structure */ |
| 703 | nes_destroy_adapter(nesdev->nesadapter); |
| 704 | |
| 705 | bail5: |
| 706 | printk(KERN_ERR PFX "bail5\n"); |
| 707 | iounmap(nesdev->regs); |
| 708 | |
| 709 | bail3: |
| 710 | printk(KERN_ERR PFX "bail3\n"); |
| 711 | kfree(nesdev); |
| 712 | |
| 713 | bail2: |
| 714 | pci_release_regions(pcidev); |
| 715 | |
| 716 | bail1: |
| 717 | pci_disable_device(pcidev); |
| 718 | |
| 719 | bail0: |
| 720 | return ret; |
| 721 | } |
| 722 | |
| 723 | |
| 724 | /** |
| 725 | * nes_remove - unload from kernel |
| 726 | */ |
| 727 | static void __devexit nes_remove(struct pci_dev *pcidev) |
| 728 | { |
| 729 | struct nes_device *nesdev = pci_get_drvdata(pcidev); |
| 730 | struct net_device *netdev; |
| 731 | int netdev_index = 0; |
| 732 | |
| 733 | if (nesdev->netdev_count) { |
| 734 | netdev = nesdev->netdev[netdev_index]; |
| 735 | if (netdev) { |
| 736 | netif_stop_queue(netdev); |
| 737 | unregister_netdev(netdev); |
| 738 | nes_netdev_destroy(netdev); |
| 739 | |
| 740 | nesdev->netdev[netdev_index] = NULL; |
| 741 | nesdev->netdev_count--; |
| 742 | nesdev->nesadapter->netdev_count--; |
| 743 | } |
| 744 | } |
| 745 | |
| 746 | nes_notifiers_registered--; |
| 747 | if (nes_notifiers_registered == 0) { |
| 748 | unregister_netevent_notifier(&nes_net_notifier); |
| 749 | unregister_inetaddr_notifier(&nes_inetaddr_notifier); |
| 750 | } |
| 751 | |
| 752 | list_del(&nesdev->list); |
| 753 | nes_destroy_cqp(nesdev); |
| 754 | tasklet_kill(&nesdev->dpc_tasklet); |
| 755 | |
| 756 | /* Deallocate the Adapter Structure */ |
| 757 | nes_destroy_adapter(nesdev->nesadapter); |
| 758 | |
| 759 | free_irq(pcidev->irq, nesdev); |
| 760 | |
| 761 | if (nesdev->msi_enabled) { |
| 762 | pci_disable_msi(pcidev); |
| 763 | } |
| 764 | |
| 765 | iounmap(nesdev->regs); |
| 766 | kfree(nesdev); |
| 767 | |
| 768 | /* nes_debug(NES_DBG_SHUTDOWN, "calling pci_release_regions.\n"); */ |
| 769 | pci_release_regions(pcidev); |
| 770 | pci_disable_device(pcidev); |
| 771 | pci_set_drvdata(pcidev, NULL); |
| 772 | } |
| 773 | |
| 774 | |
| 775 | static struct pci_driver nes_pci_driver = { |
| 776 | .name = DRV_NAME, |
| 777 | .id_table = nes_pci_table, |
| 778 | .probe = nes_probe, |
| 779 | .remove = __devexit_p(nes_remove), |
| 780 | }; |
| 781 | |
| 782 | static ssize_t nes_show_adapter(struct device_driver *ddp, char *buf) |
| 783 | { |
| 784 | unsigned int devfn = 0xffffffff; |
| 785 | unsigned char bus_number = 0xff; |
| 786 | unsigned int i = 0; |
| 787 | struct nes_device *nesdev; |
| 788 | |
| 789 | list_for_each_entry(nesdev, &nes_dev_list, list) { |
| 790 | if (i == ee_flsh_adapter) { |
| 791 | devfn = nesdev->nesadapter->devfn; |
| 792 | bus_number = nesdev->nesadapter->bus_number; |
| 793 | break; |
| 794 | } |
| 795 | i++; |
| 796 | } |
| 797 | |
| 798 | return snprintf(buf, PAGE_SIZE, "%x:%x", bus_number, devfn); |
| 799 | } |
| 800 | |
| 801 | static ssize_t nes_store_adapter(struct device_driver *ddp, |
| 802 | const char *buf, size_t count) |
| 803 | { |
| 804 | char *p = (char *)buf; |
| 805 | |
| 806 | ee_flsh_adapter = simple_strtoul(p, &p, 10); |
| 807 | return strnlen(buf, count); |
| 808 | } |
| 809 | |
| 810 | static ssize_t nes_show_ee_cmd(struct device_driver *ddp, char *buf) |
| 811 | { |
| 812 | u32 eeprom_cmd = 0xdead; |
| 813 | u32 i = 0; |
| 814 | struct nes_device *nesdev; |
| 815 | |
| 816 | list_for_each_entry(nesdev, &nes_dev_list, list) { |
| 817 | if (i == ee_flsh_adapter) { |
| 818 | eeprom_cmd = nes_read32(nesdev->regs + NES_EEPROM_COMMAND); |
| 819 | break; |
| 820 | } |
| 821 | i++; |
| 822 | } |
| 823 | return snprintf(buf, PAGE_SIZE, "0x%x\n", eeprom_cmd); |
| 824 | } |
| 825 | |
| 826 | static ssize_t nes_store_ee_cmd(struct device_driver *ddp, |
| 827 | const char *buf, size_t count) |
| 828 | { |
| 829 | char *p = (char *)buf; |
| 830 | u32 val; |
| 831 | u32 i = 0; |
| 832 | struct nes_device *nesdev; |
| 833 | |
| 834 | if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') { |
| 835 | val = simple_strtoul(p, &p, 16); |
| 836 | list_for_each_entry(nesdev, &nes_dev_list, list) { |
| 837 | if (i == ee_flsh_adapter) { |
| 838 | nes_write32(nesdev->regs + NES_EEPROM_COMMAND, val); |
| 839 | break; |
| 840 | } |
| 841 | i++; |
| 842 | } |
| 843 | } |
| 844 | return strnlen(buf, count); |
| 845 | } |
| 846 | |
| 847 | static ssize_t nes_show_ee_data(struct device_driver *ddp, char *buf) |
| 848 | { |
| 849 | u32 eeprom_data = 0xdead; |
| 850 | u32 i = 0; |
| 851 | struct nes_device *nesdev; |
| 852 | |
| 853 | list_for_each_entry(nesdev, &nes_dev_list, list) { |
| 854 | if (i == ee_flsh_adapter) { |
| 855 | eeprom_data = nes_read32(nesdev->regs + NES_EEPROM_DATA); |
| 856 | break; |
| 857 | } |
| 858 | i++; |
| 859 | } |
| 860 | |
| 861 | return snprintf(buf, PAGE_SIZE, "0x%x\n", eeprom_data); |
| 862 | } |
| 863 | |
| 864 | static ssize_t nes_store_ee_data(struct device_driver *ddp, |
| 865 | const char *buf, size_t count) |
| 866 | { |
| 867 | char *p = (char *)buf; |
| 868 | u32 val; |
| 869 | u32 i = 0; |
| 870 | struct nes_device *nesdev; |
| 871 | |
| 872 | if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') { |
| 873 | val = simple_strtoul(p, &p, 16); |
| 874 | list_for_each_entry(nesdev, &nes_dev_list, list) { |
| 875 | if (i == ee_flsh_adapter) { |
| 876 | nes_write32(nesdev->regs + NES_EEPROM_DATA, val); |
| 877 | break; |
| 878 | } |
| 879 | i++; |
| 880 | } |
| 881 | } |
| 882 | return strnlen(buf, count); |
| 883 | } |
| 884 | |
| 885 | static ssize_t nes_show_flash_cmd(struct device_driver *ddp, char *buf) |
| 886 | { |
| 887 | u32 flash_cmd = 0xdead; |
| 888 | u32 i = 0; |
| 889 | struct nes_device *nesdev; |
| 890 | |
| 891 | list_for_each_entry(nesdev, &nes_dev_list, list) { |
| 892 | if (i == ee_flsh_adapter) { |
| 893 | flash_cmd = nes_read32(nesdev->regs + NES_FLASH_COMMAND); |
| 894 | break; |
| 895 | } |
| 896 | i++; |
| 897 | } |
| 898 | |
| 899 | return snprintf(buf, PAGE_SIZE, "0x%x\n", flash_cmd); |
| 900 | } |
| 901 | |
| 902 | static ssize_t nes_store_flash_cmd(struct device_driver *ddp, |
| 903 | const char *buf, size_t count) |
| 904 | { |
| 905 | char *p = (char *)buf; |
| 906 | u32 val; |
| 907 | u32 i = 0; |
| 908 | struct nes_device *nesdev; |
| 909 | |
| 910 | if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') { |
| 911 | val = simple_strtoul(p, &p, 16); |
| 912 | list_for_each_entry(nesdev, &nes_dev_list, list) { |
| 913 | if (i == ee_flsh_adapter) { |
| 914 | nes_write32(nesdev->regs + NES_FLASH_COMMAND, val); |
| 915 | break; |
| 916 | } |
| 917 | i++; |
| 918 | } |
| 919 | } |
| 920 | return strnlen(buf, count); |
| 921 | } |
| 922 | |
| 923 | static ssize_t nes_show_flash_data(struct device_driver *ddp, char *buf) |
| 924 | { |
| 925 | u32 flash_data = 0xdead; |
| 926 | u32 i = 0; |
| 927 | struct nes_device *nesdev; |
| 928 | |
| 929 | list_for_each_entry(nesdev, &nes_dev_list, list) { |
| 930 | if (i == ee_flsh_adapter) { |
| 931 | flash_data = nes_read32(nesdev->regs + NES_FLASH_DATA); |
| 932 | break; |
| 933 | } |
| 934 | i++; |
| 935 | } |
| 936 | |
| 937 | return snprintf(buf, PAGE_SIZE, "0x%x\n", flash_data); |
| 938 | } |
| 939 | |
| 940 | static ssize_t nes_store_flash_data(struct device_driver *ddp, |
| 941 | const char *buf, size_t count) |
| 942 | { |
| 943 | char *p = (char *)buf; |
| 944 | u32 val; |
| 945 | u32 i = 0; |
| 946 | struct nes_device *nesdev; |
| 947 | |
| 948 | if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') { |
| 949 | val = simple_strtoul(p, &p, 16); |
| 950 | list_for_each_entry(nesdev, &nes_dev_list, list) { |
| 951 | if (i == ee_flsh_adapter) { |
| 952 | nes_write32(nesdev->regs + NES_FLASH_DATA, val); |
| 953 | break; |
| 954 | } |
| 955 | i++; |
| 956 | } |
| 957 | } |
| 958 | return strnlen(buf, count); |
| 959 | } |
| 960 | |
| 961 | static ssize_t nes_show_nonidx_addr(struct device_driver *ddp, char *buf) |
| 962 | { |
| 963 | return snprintf(buf, PAGE_SIZE, "0x%x\n", sysfs_nonidx_addr); |
| 964 | } |
| 965 | |
| 966 | static ssize_t nes_store_nonidx_addr(struct device_driver *ddp, |
| 967 | const char *buf, size_t count) |
| 968 | { |
| 969 | char *p = (char *)buf; |
| 970 | |
| 971 | if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') |
| 972 | sysfs_nonidx_addr = simple_strtoul(p, &p, 16); |
| 973 | |
| 974 | return strnlen(buf, count); |
| 975 | } |
| 976 | |
| 977 | static ssize_t nes_show_nonidx_data(struct device_driver *ddp, char *buf) |
| 978 | { |
| 979 | u32 nonidx_data = 0xdead; |
| 980 | u32 i = 0; |
| 981 | struct nes_device *nesdev; |
| 982 | |
| 983 | list_for_each_entry(nesdev, &nes_dev_list, list) { |
| 984 | if (i == ee_flsh_adapter) { |
| 985 | nonidx_data = nes_read32(nesdev->regs + sysfs_nonidx_addr); |
| 986 | break; |
| 987 | } |
| 988 | i++; |
| 989 | } |
| 990 | |
| 991 | return snprintf(buf, PAGE_SIZE, "0x%x\n", nonidx_data); |
| 992 | } |
| 993 | |
| 994 | static ssize_t nes_store_nonidx_data(struct device_driver *ddp, |
| 995 | const char *buf, size_t count) |
| 996 | { |
| 997 | char *p = (char *)buf; |
| 998 | u32 val; |
| 999 | u32 i = 0; |
| 1000 | struct nes_device *nesdev; |
| 1001 | |
| 1002 | if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') { |
| 1003 | val = simple_strtoul(p, &p, 16); |
| 1004 | list_for_each_entry(nesdev, &nes_dev_list, list) { |
| 1005 | if (i == ee_flsh_adapter) { |
| 1006 | nes_write32(nesdev->regs + sysfs_nonidx_addr, val); |
| 1007 | break; |
| 1008 | } |
| 1009 | i++; |
| 1010 | } |
| 1011 | } |
| 1012 | return strnlen(buf, count); |
| 1013 | } |
| 1014 | |
| 1015 | static ssize_t nes_show_idx_addr(struct device_driver *ddp, char *buf) |
| 1016 | { |
| 1017 | return snprintf(buf, PAGE_SIZE, "0x%x\n", sysfs_idx_addr); |
| 1018 | } |
| 1019 | |
| 1020 | static ssize_t nes_store_idx_addr(struct device_driver *ddp, |
| 1021 | const char *buf, size_t count) |
| 1022 | { |
| 1023 | char *p = (char *)buf; |
| 1024 | |
| 1025 | if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') |
| 1026 | sysfs_idx_addr = simple_strtoul(p, &p, 16); |
| 1027 | |
| 1028 | return strnlen(buf, count); |
| 1029 | } |
| 1030 | |
| 1031 | static ssize_t nes_show_idx_data(struct device_driver *ddp, char *buf) |
| 1032 | { |
| 1033 | u32 idx_data = 0xdead; |
| 1034 | u32 i = 0; |
| 1035 | struct nes_device *nesdev; |
| 1036 | |
| 1037 | list_for_each_entry(nesdev, &nes_dev_list, list) { |
| 1038 | if (i == ee_flsh_adapter) { |
| 1039 | idx_data = nes_read_indexed(nesdev, sysfs_idx_addr); |
| 1040 | break; |
| 1041 | } |
| 1042 | i++; |
| 1043 | } |
| 1044 | |
| 1045 | return snprintf(buf, PAGE_SIZE, "0x%x\n", idx_data); |
| 1046 | } |
| 1047 | |
| 1048 | static ssize_t nes_store_idx_data(struct device_driver *ddp, |
| 1049 | const char *buf, size_t count) |
| 1050 | { |
| 1051 | char *p = (char *)buf; |
| 1052 | u32 val; |
| 1053 | u32 i = 0; |
| 1054 | struct nes_device *nesdev; |
| 1055 | |
| 1056 | if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') { |
| 1057 | val = simple_strtoul(p, &p, 16); |
| 1058 | list_for_each_entry(nesdev, &nes_dev_list, list) { |
| 1059 | if (i == ee_flsh_adapter) { |
| 1060 | nes_write_indexed(nesdev, sysfs_idx_addr, val); |
| 1061 | break; |
| 1062 | } |
| 1063 | i++; |
| 1064 | } |
| 1065 | } |
| 1066 | return strnlen(buf, count); |
| 1067 | } |
| 1068 | |
| 1069 | static DRIVER_ATTR(adapter, S_IRUSR | S_IWUSR, |
| 1070 | nes_show_adapter, nes_store_adapter); |
| 1071 | static DRIVER_ATTR(eeprom_cmd, S_IRUSR | S_IWUSR, |
| 1072 | nes_show_ee_cmd, nes_store_ee_cmd); |
| 1073 | static DRIVER_ATTR(eeprom_data, S_IRUSR | S_IWUSR, |
| 1074 | nes_show_ee_data, nes_store_ee_data); |
| 1075 | static DRIVER_ATTR(flash_cmd, S_IRUSR | S_IWUSR, |
| 1076 | nes_show_flash_cmd, nes_store_flash_cmd); |
| 1077 | static DRIVER_ATTR(flash_data, S_IRUSR | S_IWUSR, |
| 1078 | nes_show_flash_data, nes_store_flash_data); |
| 1079 | static DRIVER_ATTR(nonidx_addr, S_IRUSR | S_IWUSR, |
| 1080 | nes_show_nonidx_addr, nes_store_nonidx_addr); |
| 1081 | static DRIVER_ATTR(nonidx_data, S_IRUSR | S_IWUSR, |
| 1082 | nes_show_nonidx_data, nes_store_nonidx_data); |
| 1083 | static DRIVER_ATTR(idx_addr, S_IRUSR | S_IWUSR, |
| 1084 | nes_show_idx_addr, nes_store_idx_addr); |
| 1085 | static DRIVER_ATTR(idx_data, S_IRUSR | S_IWUSR, |
| 1086 | nes_show_idx_data, nes_store_idx_data); |
| 1087 | |
| 1088 | static int nes_create_driver_sysfs(struct pci_driver *drv) |
| 1089 | { |
| 1090 | int error; |
| 1091 | error = driver_create_file(&drv->driver, &driver_attr_adapter); |
| 1092 | error |= driver_create_file(&drv->driver, &driver_attr_eeprom_cmd); |
| 1093 | error |= driver_create_file(&drv->driver, &driver_attr_eeprom_data); |
| 1094 | error |= driver_create_file(&drv->driver, &driver_attr_flash_cmd); |
| 1095 | error |= driver_create_file(&drv->driver, &driver_attr_flash_data); |
| 1096 | error |= driver_create_file(&drv->driver, &driver_attr_nonidx_addr); |
| 1097 | error |= driver_create_file(&drv->driver, &driver_attr_nonidx_data); |
| 1098 | error |= driver_create_file(&drv->driver, &driver_attr_idx_addr); |
| 1099 | error |= driver_create_file(&drv->driver, &driver_attr_idx_data); |
| 1100 | return error; |
| 1101 | } |
| 1102 | |
| 1103 | static void nes_remove_driver_sysfs(struct pci_driver *drv) |
| 1104 | { |
| 1105 | driver_remove_file(&drv->driver, &driver_attr_adapter); |
| 1106 | driver_remove_file(&drv->driver, &driver_attr_eeprom_cmd); |
| 1107 | driver_remove_file(&drv->driver, &driver_attr_eeprom_data); |
| 1108 | driver_remove_file(&drv->driver, &driver_attr_flash_cmd); |
| 1109 | driver_remove_file(&drv->driver, &driver_attr_flash_data); |
| 1110 | driver_remove_file(&drv->driver, &driver_attr_nonidx_addr); |
| 1111 | driver_remove_file(&drv->driver, &driver_attr_nonidx_data); |
| 1112 | driver_remove_file(&drv->driver, &driver_attr_idx_addr); |
| 1113 | driver_remove_file(&drv->driver, &driver_attr_idx_data); |
| 1114 | } |
| 1115 | |
| 1116 | /** |
| 1117 | * nes_init_module - module initialization entry point |
| 1118 | */ |
| 1119 | static int __init nes_init_module(void) |
| 1120 | { |
| 1121 | int retval; |
| 1122 | int retval1; |
| 1123 | |
| 1124 | retval = nes_cm_start(); |
| 1125 | if (retval) { |
| 1126 | printk(KERN_ERR PFX "Unable to start NetEffect iWARP CM.\n"); |
| 1127 | return retval; |
| 1128 | } |
| 1129 | retval = pci_register_driver(&nes_pci_driver); |
| 1130 | if (retval >= 0) { |
| 1131 | retval1 = nes_create_driver_sysfs(&nes_pci_driver); |
| 1132 | if (retval1 < 0) |
| 1133 | printk(KERN_ERR PFX "Unable to create NetEffect sys files.\n"); |
| 1134 | } |
| 1135 | return retval; |
| 1136 | } |
| 1137 | |
| 1138 | |
| 1139 | /** |
| 1140 | * nes_exit_module - module unload entry point |
| 1141 | */ |
| 1142 | static void __exit nes_exit_module(void) |
| 1143 | { |
| 1144 | nes_cm_stop(); |
| 1145 | nes_remove_driver_sysfs(&nes_pci_driver); |
| 1146 | |
| 1147 | pci_unregister_driver(&nes_pci_driver); |
| 1148 | } |
| 1149 | |
| 1150 | |
| 1151 | module_init(nes_init_module); |
| 1152 | module_exit(nes_exit_module); |