Abhijeet Joglekar | 5df6d73 | 2009-04-17 18:33:26 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2008 Cisco Systems, Inc. All rights reserved. |
| 3 | * Copyright 2007 Nuova Systems, Inc. All rights reserved. |
| 4 | * |
| 5 | * This program is free software; you may redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License as published by |
| 7 | * the Free Software Foundation; version 2 of the License. |
| 8 | * |
| 9 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| 10 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| 11 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| 12 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
| 13 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
| 14 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| 15 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 16 | * SOFTWARE. |
| 17 | */ |
| 18 | #include <linux/module.h> |
| 19 | #include <linux/mempool.h> |
| 20 | #include <linux/string.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 21 | #include <linux/slab.h> |
Abhijeet Joglekar | 5df6d73 | 2009-04-17 18:33:26 -0700 | [diff] [blame] | 22 | #include <linux/errno.h> |
| 23 | #include <linux/init.h> |
| 24 | #include <linux/pci.h> |
| 25 | #include <linux/skbuff.h> |
| 26 | #include <linux/interrupt.h> |
| 27 | #include <linux/spinlock.h> |
| 28 | #include <linux/workqueue.h> |
Joe Eykholt | 78112e5 | 2009-11-03 11:49:22 -0800 | [diff] [blame] | 29 | #include <linux/if_ether.h> |
| 30 | #include <scsi/fc/fc_fip.h> |
Abhijeet Joglekar | 5df6d73 | 2009-04-17 18:33:26 -0700 | [diff] [blame] | 31 | #include <scsi/scsi_host.h> |
| 32 | #include <scsi/scsi_transport.h> |
| 33 | #include <scsi/scsi_transport_fc.h> |
| 34 | #include <scsi/scsi_tcq.h> |
| 35 | #include <scsi/libfc.h> |
| 36 | #include <scsi/fc_frame.h> |
| 37 | |
| 38 | #include "vnic_dev.h" |
| 39 | #include "vnic_intr.h" |
| 40 | #include "vnic_stats.h" |
| 41 | #include "fnic_io.h" |
| 42 | #include "fnic.h" |
| 43 | |
| 44 | #define PCI_DEVICE_ID_CISCO_FNIC 0x0045 |
| 45 | |
| 46 | /* Timer to poll notification area for events. Used for MSI interrupts */ |
| 47 | #define FNIC_NOTIFY_TIMER_PERIOD (2 * HZ) |
| 48 | |
| 49 | static struct kmem_cache *fnic_sgl_cache[FNIC_SGL_NUM_CACHES]; |
| 50 | static struct kmem_cache *fnic_io_req_cache; |
| 51 | LIST_HEAD(fnic_list); |
| 52 | DEFINE_SPINLOCK(fnic_list_lock); |
| 53 | |
| 54 | /* Supported devices by fnic module */ |
| 55 | static struct pci_device_id fnic_id_table[] = { |
| 56 | { PCI_DEVICE(PCI_VENDOR_ID_CISCO, PCI_DEVICE_ID_CISCO_FNIC) }, |
| 57 | { 0, } |
| 58 | }; |
| 59 | |
| 60 | MODULE_DESCRIPTION(DRV_DESCRIPTION); |
| 61 | MODULE_AUTHOR("Abhijeet Joglekar <abjoglek@cisco.com>, " |
| 62 | "Joseph R. Eykholt <jeykholt@cisco.com>"); |
| 63 | MODULE_LICENSE("GPL v2"); |
| 64 | MODULE_VERSION(DRV_VERSION); |
| 65 | MODULE_DEVICE_TABLE(pci, fnic_id_table); |
| 66 | |
| 67 | unsigned int fnic_log_level; |
| 68 | module_param(fnic_log_level, int, S_IRUGO|S_IWUSR); |
| 69 | MODULE_PARM_DESC(fnic_log_level, "bit mask of fnic logging levels"); |
| 70 | |
| 71 | |
| 72 | static struct libfc_function_template fnic_transport_template = { |
| 73 | .frame_send = fnic_send, |
Joe Eykholt | 78112e5 | 2009-11-03 11:49:22 -0800 | [diff] [blame] | 74 | .lport_set_port_id = fnic_set_port_id, |
Abhijeet Joglekar | 5df6d73 | 2009-04-17 18:33:26 -0700 | [diff] [blame] | 75 | .fcp_abort_io = fnic_empty_scsi_cleanup, |
| 76 | .fcp_cleanup = fnic_empty_scsi_cleanup, |
| 77 | .exch_mgr_reset = fnic_exch_mgr_reset |
| 78 | }; |
| 79 | |
| 80 | static int fnic_slave_alloc(struct scsi_device *sdev) |
| 81 | { |
| 82 | struct fc_rport *rport = starget_to_rport(scsi_target(sdev)); |
Abhijeet Joglekar | 5df6d73 | 2009-04-17 18:33:26 -0700 | [diff] [blame] | 83 | |
| 84 | sdev->tagged_supported = 1; |
| 85 | |
| 86 | if (!rport || fc_remote_port_chkready(rport)) |
| 87 | return -ENXIO; |
| 88 | |
| 89 | scsi_activate_tcq(sdev, FNIC_DFLT_QUEUE_DEPTH); |
Abhijeet Joglekar | 5df6d73 | 2009-04-17 18:33:26 -0700 | [diff] [blame] | 90 | return 0; |
| 91 | } |
| 92 | |
| 93 | static struct scsi_host_template fnic_host_template = { |
| 94 | .module = THIS_MODULE, |
| 95 | .name = DRV_NAME, |
| 96 | .queuecommand = fnic_queuecommand, |
| 97 | .eh_abort_handler = fnic_abort_cmd, |
| 98 | .eh_device_reset_handler = fnic_device_reset, |
| 99 | .eh_host_reset_handler = fnic_host_reset, |
| 100 | .slave_alloc = fnic_slave_alloc, |
| 101 | .change_queue_depth = fc_change_queue_depth, |
| 102 | .change_queue_type = fc_change_queue_type, |
| 103 | .this_id = -1, |
| 104 | .cmd_per_lun = 3, |
| 105 | .can_queue = FNIC_MAX_IO_REQ, |
| 106 | .use_clustering = ENABLE_CLUSTERING, |
| 107 | .sg_tablesize = FNIC_MAX_SG_DESC_CNT, |
| 108 | .max_sectors = 0xffff, |
| 109 | .shost_attrs = fnic_attrs, |
| 110 | }; |
| 111 | |
Mike Christie | 8196a93 | 2010-08-06 03:02:40 -0500 | [diff] [blame^] | 112 | static void |
| 113 | fnic_get_host_def_loss_tmo(struct Scsi_Host *shost) |
| 114 | { |
| 115 | struct fc_lport *lp = shost_priv(shost); |
| 116 | struct fnic *fnic = lport_priv(lp); |
| 117 | |
| 118 | fc_host_def_dev_loss_tmo(shost) = fnic->config.port_down_timeout / 1000; |
| 119 | } |
| 120 | |
Abhijeet Joglekar | 5df6d73 | 2009-04-17 18:33:26 -0700 | [diff] [blame] | 121 | static void fnic_get_host_speed(struct Scsi_Host *shost); |
| 122 | static struct scsi_transport_template *fnic_fc_transport; |
| 123 | static struct fc_host_statistics *fnic_get_stats(struct Scsi_Host *); |
| 124 | |
| 125 | static struct fc_function_template fnic_fc_functions = { |
| 126 | |
| 127 | .show_host_node_name = 1, |
| 128 | .show_host_port_name = 1, |
| 129 | .show_host_supported_classes = 1, |
| 130 | .show_host_supported_fc4s = 1, |
| 131 | .show_host_active_fc4s = 1, |
| 132 | .show_host_maxframe_size = 1, |
| 133 | .show_host_port_id = 1, |
| 134 | .show_host_supported_speeds = 1, |
| 135 | .get_host_speed = fnic_get_host_speed, |
| 136 | .show_host_speed = 1, |
| 137 | .show_host_port_type = 1, |
| 138 | .get_host_port_state = fc_get_host_port_state, |
| 139 | .show_host_port_state = 1, |
| 140 | .show_host_symbolic_name = 1, |
| 141 | .show_rport_maxframe_size = 1, |
| 142 | .show_rport_supported_classes = 1, |
| 143 | .show_host_fabric_name = 1, |
| 144 | .show_starget_node_name = 1, |
| 145 | .show_starget_port_name = 1, |
| 146 | .show_starget_port_id = 1, |
| 147 | .show_rport_dev_loss_tmo = 1, |
| 148 | .issue_fc_host_lip = fnic_reset, |
| 149 | .get_fc_host_stats = fnic_get_stats, |
Mike Christie | 8196a93 | 2010-08-06 03:02:40 -0500 | [diff] [blame^] | 150 | .get_host_def_dev_loss_tmo = fnic_get_host_def_loss_tmo, |
Abhijeet Joglekar | 5df6d73 | 2009-04-17 18:33:26 -0700 | [diff] [blame] | 151 | .dd_fcrport_size = sizeof(struct fc_rport_libfc_priv), |
| 152 | .terminate_rport_io = fnic_terminate_rport_io, |
Joe Eykholt | 76d8737 | 2009-11-03 11:49:32 -0800 | [diff] [blame] | 153 | .bsg_request = fc_lport_bsg_request, |
Abhijeet Joglekar | 5df6d73 | 2009-04-17 18:33:26 -0700 | [diff] [blame] | 154 | }; |
| 155 | |
| 156 | static void fnic_get_host_speed(struct Scsi_Host *shost) |
| 157 | { |
| 158 | struct fc_lport *lp = shost_priv(shost); |
| 159 | struct fnic *fnic = lport_priv(lp); |
| 160 | u32 port_speed = vnic_dev_port_speed(fnic->vdev); |
| 161 | |
| 162 | /* Add in other values as they get defined in fw */ |
| 163 | switch (port_speed) { |
| 164 | case 10000: |
| 165 | fc_host_speed(shost) = FC_PORTSPEED_10GBIT; |
| 166 | break; |
| 167 | default: |
| 168 | fc_host_speed(shost) = FC_PORTSPEED_10GBIT; |
| 169 | break; |
| 170 | } |
| 171 | } |
| 172 | |
| 173 | static struct fc_host_statistics *fnic_get_stats(struct Scsi_Host *host) |
| 174 | { |
| 175 | int ret; |
| 176 | struct fc_lport *lp = shost_priv(host); |
| 177 | struct fnic *fnic = lport_priv(lp); |
| 178 | struct fc_host_statistics *stats = &lp->host_stats; |
| 179 | struct vnic_stats *vs; |
| 180 | unsigned long flags; |
| 181 | |
| 182 | if (time_before(jiffies, fnic->stats_time + HZ / FNIC_STATS_RATE_LIMIT)) |
| 183 | return stats; |
| 184 | fnic->stats_time = jiffies; |
| 185 | |
| 186 | spin_lock_irqsave(&fnic->fnic_lock, flags); |
| 187 | ret = vnic_dev_stats_dump(fnic->vdev, &fnic->stats); |
| 188 | spin_unlock_irqrestore(&fnic->fnic_lock, flags); |
| 189 | |
| 190 | if (ret) { |
| 191 | FNIC_MAIN_DBG(KERN_DEBUG, fnic->lport->host, |
| 192 | "fnic: Get vnic stats failed" |
| 193 | " 0x%x", ret); |
| 194 | return stats; |
| 195 | } |
| 196 | vs = fnic->stats; |
| 197 | stats->tx_frames = vs->tx.tx_unicast_frames_ok; |
| 198 | stats->tx_words = vs->tx.tx_unicast_bytes_ok / 4; |
| 199 | stats->rx_frames = vs->rx.rx_unicast_frames_ok; |
| 200 | stats->rx_words = vs->rx.rx_unicast_bytes_ok / 4; |
| 201 | stats->error_frames = vs->tx.tx_errors + vs->rx.rx_errors; |
| 202 | stats->dumped_frames = vs->tx.tx_drops + vs->rx.rx_drop; |
| 203 | stats->invalid_crc_count = vs->rx.rx_crc_errors; |
| 204 | stats->seconds_since_last_reset = (jiffies - lp->boot_time) / HZ; |
| 205 | stats->fcp_input_megabytes = div_u64(fnic->fcp_input_bytes, 1000000); |
| 206 | stats->fcp_output_megabytes = div_u64(fnic->fcp_output_bytes, 1000000); |
| 207 | |
| 208 | return stats; |
| 209 | } |
| 210 | |
| 211 | void fnic_log_q_error(struct fnic *fnic) |
| 212 | { |
| 213 | unsigned int i; |
| 214 | u32 error_status; |
| 215 | |
| 216 | for (i = 0; i < fnic->raw_wq_count; i++) { |
| 217 | error_status = ioread32(&fnic->wq[i].ctrl->error_status); |
| 218 | if (error_status) |
| 219 | shost_printk(KERN_ERR, fnic->lport->host, |
| 220 | "WQ[%d] error_status" |
| 221 | " %d\n", i, error_status); |
| 222 | } |
| 223 | |
| 224 | for (i = 0; i < fnic->rq_count; i++) { |
| 225 | error_status = ioread32(&fnic->rq[i].ctrl->error_status); |
| 226 | if (error_status) |
| 227 | shost_printk(KERN_ERR, fnic->lport->host, |
| 228 | "RQ[%d] error_status" |
| 229 | " %d\n", i, error_status); |
| 230 | } |
| 231 | |
| 232 | for (i = 0; i < fnic->wq_copy_count; i++) { |
| 233 | error_status = ioread32(&fnic->wq_copy[i].ctrl->error_status); |
| 234 | if (error_status) |
| 235 | shost_printk(KERN_ERR, fnic->lport->host, |
| 236 | "CWQ[%d] error_status" |
| 237 | " %d\n", i, error_status); |
| 238 | } |
| 239 | } |
| 240 | |
| 241 | void fnic_handle_link_event(struct fnic *fnic) |
| 242 | { |
| 243 | unsigned long flags; |
| 244 | |
| 245 | spin_lock_irqsave(&fnic->fnic_lock, flags); |
| 246 | if (fnic->stop_rx_link_events) { |
| 247 | spin_unlock_irqrestore(&fnic->fnic_lock, flags); |
| 248 | return; |
| 249 | } |
| 250 | spin_unlock_irqrestore(&fnic->fnic_lock, flags); |
| 251 | |
| 252 | queue_work(fnic_event_queue, &fnic->link_work); |
| 253 | |
| 254 | } |
| 255 | |
| 256 | static int fnic_notify_set(struct fnic *fnic) |
| 257 | { |
| 258 | int err; |
| 259 | |
| 260 | switch (vnic_dev_get_intr_mode(fnic->vdev)) { |
| 261 | case VNIC_DEV_INTR_MODE_INTX: |
| 262 | err = vnic_dev_notify_set(fnic->vdev, FNIC_INTX_NOTIFY); |
| 263 | break; |
| 264 | case VNIC_DEV_INTR_MODE_MSI: |
| 265 | err = vnic_dev_notify_set(fnic->vdev, -1); |
| 266 | break; |
| 267 | case VNIC_DEV_INTR_MODE_MSIX: |
| 268 | err = vnic_dev_notify_set(fnic->vdev, FNIC_MSIX_ERR_NOTIFY); |
| 269 | break; |
| 270 | default: |
| 271 | shost_printk(KERN_ERR, fnic->lport->host, |
| 272 | "Interrupt mode should be set up" |
| 273 | " before devcmd notify set %d\n", |
| 274 | vnic_dev_get_intr_mode(fnic->vdev)); |
| 275 | err = -1; |
| 276 | break; |
| 277 | } |
| 278 | |
| 279 | return err; |
| 280 | } |
| 281 | |
| 282 | static void fnic_notify_timer(unsigned long data) |
| 283 | { |
| 284 | struct fnic *fnic = (struct fnic *)data; |
| 285 | |
| 286 | fnic_handle_link_event(fnic); |
| 287 | mod_timer(&fnic->notify_timer, |
| 288 | round_jiffies(jiffies + FNIC_NOTIFY_TIMER_PERIOD)); |
| 289 | } |
| 290 | |
| 291 | static void fnic_notify_timer_start(struct fnic *fnic) |
| 292 | { |
| 293 | switch (vnic_dev_get_intr_mode(fnic->vdev)) { |
| 294 | case VNIC_DEV_INTR_MODE_MSI: |
| 295 | /* |
| 296 | * Schedule first timeout immediately. The driver is |
| 297 | * initiatialized and ready to look for link up notification |
| 298 | */ |
| 299 | mod_timer(&fnic->notify_timer, jiffies); |
| 300 | break; |
| 301 | default: |
| 302 | /* Using intr for notification for INTx/MSI-X */ |
| 303 | break; |
| 304 | }; |
| 305 | } |
| 306 | |
| 307 | static int fnic_dev_wait(struct vnic_dev *vdev, |
| 308 | int (*start)(struct vnic_dev *, int), |
| 309 | int (*finished)(struct vnic_dev *, int *), |
| 310 | int arg) |
| 311 | { |
| 312 | unsigned long time; |
| 313 | int done; |
| 314 | int err; |
| 315 | |
| 316 | err = start(vdev, arg); |
| 317 | if (err) |
| 318 | return err; |
| 319 | |
| 320 | /* Wait for func to complete...2 seconds max */ |
| 321 | time = jiffies + (HZ * 2); |
| 322 | do { |
| 323 | err = finished(vdev, &done); |
| 324 | if (err) |
| 325 | return err; |
| 326 | if (done) |
| 327 | return 0; |
| 328 | schedule_timeout_uninterruptible(HZ / 10); |
| 329 | } while (time_after(time, jiffies)); |
| 330 | |
| 331 | return -ETIMEDOUT; |
| 332 | } |
| 333 | |
| 334 | static int fnic_cleanup(struct fnic *fnic) |
| 335 | { |
| 336 | unsigned int i; |
| 337 | int err; |
Abhijeet Joglekar | 5df6d73 | 2009-04-17 18:33:26 -0700 | [diff] [blame] | 338 | |
| 339 | vnic_dev_disable(fnic->vdev); |
| 340 | for (i = 0; i < fnic->intr_count; i++) |
| 341 | vnic_intr_mask(&fnic->intr[i]); |
| 342 | |
| 343 | for (i = 0; i < fnic->rq_count; i++) { |
| 344 | err = vnic_rq_disable(&fnic->rq[i]); |
| 345 | if (err) |
| 346 | return err; |
| 347 | } |
| 348 | for (i = 0; i < fnic->raw_wq_count; i++) { |
| 349 | err = vnic_wq_disable(&fnic->wq[i]); |
| 350 | if (err) |
| 351 | return err; |
| 352 | } |
| 353 | for (i = 0; i < fnic->wq_copy_count; i++) { |
| 354 | err = vnic_wq_copy_disable(&fnic->wq_copy[i]); |
| 355 | if (err) |
| 356 | return err; |
| 357 | } |
| 358 | |
| 359 | /* Clean up completed IOs and FCS frames */ |
| 360 | fnic_wq_copy_cmpl_handler(fnic, -1); |
| 361 | fnic_wq_cmpl_handler(fnic, -1); |
| 362 | fnic_rq_cmpl_handler(fnic, -1); |
| 363 | |
| 364 | /* Clean up the IOs and FCS frames that have not completed */ |
| 365 | for (i = 0; i < fnic->raw_wq_count; i++) |
| 366 | vnic_wq_clean(&fnic->wq[i], fnic_free_wq_buf); |
| 367 | for (i = 0; i < fnic->rq_count; i++) |
| 368 | vnic_rq_clean(&fnic->rq[i], fnic_free_rq_buf); |
| 369 | for (i = 0; i < fnic->wq_copy_count; i++) |
| 370 | vnic_wq_copy_clean(&fnic->wq_copy[i], |
| 371 | fnic_wq_copy_cleanup_handler); |
| 372 | |
| 373 | for (i = 0; i < fnic->cq_count; i++) |
| 374 | vnic_cq_clean(&fnic->cq[i]); |
| 375 | for (i = 0; i < fnic->intr_count; i++) |
| 376 | vnic_intr_clean(&fnic->intr[i]); |
| 377 | |
Abhijeet Joglekar | 5df6d73 | 2009-04-17 18:33:26 -0700 | [diff] [blame] | 378 | mempool_destroy(fnic->io_req_pool); |
| 379 | for (i = 0; i < FNIC_SGL_NUM_CACHES; i++) |
| 380 | mempool_destroy(fnic->io_sgl_pool[i]); |
| 381 | |
| 382 | return 0; |
| 383 | } |
| 384 | |
| 385 | static void fnic_iounmap(struct fnic *fnic) |
| 386 | { |
| 387 | if (fnic->bar0.vaddr) |
| 388 | iounmap(fnic->bar0.vaddr); |
| 389 | } |
| 390 | |
| 391 | /* |
| 392 | * Allocate element for mempools requiring GFP_DMA flag. |
| 393 | * Otherwise, checks in kmem_flagcheck() hit BUG_ON(). |
| 394 | */ |
| 395 | static void *fnic_alloc_slab_dma(gfp_t gfp_mask, void *pool_data) |
| 396 | { |
| 397 | struct kmem_cache *mem = pool_data; |
| 398 | |
| 399 | return kmem_cache_alloc(mem, gfp_mask | GFP_ATOMIC | GFP_DMA); |
| 400 | } |
| 401 | |
Joe Eykholt | 78112e5 | 2009-11-03 11:49:22 -0800 | [diff] [blame] | 402 | /** |
| 403 | * fnic_get_mac() - get assigned data MAC address for FIP code. |
| 404 | * @lport: local port. |
| 405 | */ |
| 406 | static u8 *fnic_get_mac(struct fc_lport *lport) |
| 407 | { |
| 408 | struct fnic *fnic = lport_priv(lport); |
| 409 | |
| 410 | return fnic->data_src_addr; |
| 411 | } |
| 412 | |
Abhijeet Joglekar | 5df6d73 | 2009-04-17 18:33:26 -0700 | [diff] [blame] | 413 | static int __devinit fnic_probe(struct pci_dev *pdev, |
| 414 | const struct pci_device_id *ent) |
| 415 | { |
| 416 | struct Scsi_Host *host; |
| 417 | struct fc_lport *lp; |
| 418 | struct fnic *fnic; |
| 419 | mempool_t *pool; |
| 420 | int err; |
| 421 | int i; |
| 422 | unsigned long flags; |
| 423 | |
| 424 | /* |
| 425 | * Allocate SCSI Host and set up association between host, |
| 426 | * local port, and fnic |
| 427 | */ |
Chris Leech | 8622196 | 2009-11-03 11:46:08 -0800 | [diff] [blame] | 428 | lp = libfc_host_alloc(&fnic_host_template, sizeof(struct fnic)); |
| 429 | if (!lp) { |
| 430 | printk(KERN_ERR PFX "Unable to alloc libfc local port\n"); |
Abhijeet Joglekar | 5df6d73 | 2009-04-17 18:33:26 -0700 | [diff] [blame] | 431 | err = -ENOMEM; |
| 432 | goto err_out; |
| 433 | } |
Chris Leech | 8622196 | 2009-11-03 11:46:08 -0800 | [diff] [blame] | 434 | host = lp->host; |
Abhijeet Joglekar | 5df6d73 | 2009-04-17 18:33:26 -0700 | [diff] [blame] | 435 | fnic = lport_priv(lp); |
| 436 | fnic->lport = lp; |
Joe Eykholt | 78112e5 | 2009-11-03 11:49:22 -0800 | [diff] [blame] | 437 | fnic->ctlr.lp = lp; |
Abhijeet Joglekar | 5df6d73 | 2009-04-17 18:33:26 -0700 | [diff] [blame] | 438 | |
| 439 | snprintf(fnic->name, sizeof(fnic->name) - 1, "%s%d", DRV_NAME, |
| 440 | host->host_no); |
| 441 | |
| 442 | host->transportt = fnic_fc_transport; |
| 443 | |
| 444 | err = scsi_init_shared_tag_map(host, FNIC_MAX_IO_REQ); |
| 445 | if (err) { |
| 446 | shost_printk(KERN_ERR, fnic->lport->host, |
| 447 | "Unable to alloc shared tag map\n"); |
| 448 | goto err_out_free_hba; |
| 449 | } |
| 450 | |
| 451 | /* Setup PCI resources */ |
| 452 | pci_set_drvdata(pdev, fnic); |
| 453 | |
| 454 | fnic->pdev = pdev; |
| 455 | |
| 456 | err = pci_enable_device(pdev); |
| 457 | if (err) { |
| 458 | shost_printk(KERN_ERR, fnic->lport->host, |
| 459 | "Cannot enable PCI device, aborting.\n"); |
| 460 | goto err_out_free_hba; |
| 461 | } |
| 462 | |
| 463 | err = pci_request_regions(pdev, DRV_NAME); |
| 464 | if (err) { |
| 465 | shost_printk(KERN_ERR, fnic->lport->host, |
| 466 | "Cannot enable PCI resources, aborting\n"); |
| 467 | goto err_out_disable_device; |
| 468 | } |
| 469 | |
| 470 | pci_set_master(pdev); |
| 471 | |
| 472 | /* Query PCI controller on system for DMA addressing |
| 473 | * limitation for the device. Try 40-bit first, and |
| 474 | * fail to 32-bit. |
| 475 | */ |
Abhijeet Joglekar | e3f47cc | 2009-06-24 07:42:25 -0700 | [diff] [blame] | 476 | err = pci_set_dma_mask(pdev, DMA_BIT_MASK(40)); |
Abhijeet Joglekar | 5df6d73 | 2009-04-17 18:33:26 -0700 | [diff] [blame] | 477 | if (err) { |
Abhijeet Joglekar | e3f47cc | 2009-06-24 07:42:25 -0700 | [diff] [blame] | 478 | err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); |
Abhijeet Joglekar | 5df6d73 | 2009-04-17 18:33:26 -0700 | [diff] [blame] | 479 | if (err) { |
| 480 | shost_printk(KERN_ERR, fnic->lport->host, |
| 481 | "No usable DMA configuration " |
| 482 | "aborting\n"); |
| 483 | goto err_out_release_regions; |
| 484 | } |
Abhijeet Joglekar | e3f47cc | 2009-06-24 07:42:25 -0700 | [diff] [blame] | 485 | err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); |
Abhijeet Joglekar | 5df6d73 | 2009-04-17 18:33:26 -0700 | [diff] [blame] | 486 | if (err) { |
| 487 | shost_printk(KERN_ERR, fnic->lport->host, |
| 488 | "Unable to obtain 32-bit DMA " |
| 489 | "for consistent allocations, aborting.\n"); |
| 490 | goto err_out_release_regions; |
| 491 | } |
| 492 | } else { |
Abhijeet Joglekar | e3f47cc | 2009-06-24 07:42:25 -0700 | [diff] [blame] | 493 | err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(40)); |
Abhijeet Joglekar | 5df6d73 | 2009-04-17 18:33:26 -0700 | [diff] [blame] | 494 | if (err) { |
| 495 | shost_printk(KERN_ERR, fnic->lport->host, |
| 496 | "Unable to obtain 40-bit DMA " |
| 497 | "for consistent allocations, aborting.\n"); |
| 498 | goto err_out_release_regions; |
| 499 | } |
| 500 | } |
| 501 | |
| 502 | /* Map vNIC resources from BAR0 */ |
| 503 | if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { |
| 504 | shost_printk(KERN_ERR, fnic->lport->host, |
| 505 | "BAR0 not memory-map'able, aborting.\n"); |
| 506 | err = -ENODEV; |
| 507 | goto err_out_release_regions; |
| 508 | } |
| 509 | |
| 510 | fnic->bar0.vaddr = pci_iomap(pdev, 0, 0); |
| 511 | fnic->bar0.bus_addr = pci_resource_start(pdev, 0); |
| 512 | fnic->bar0.len = pci_resource_len(pdev, 0); |
| 513 | |
| 514 | if (!fnic->bar0.vaddr) { |
| 515 | shost_printk(KERN_ERR, fnic->lport->host, |
| 516 | "Cannot memory-map BAR0 res hdr, " |
| 517 | "aborting.\n"); |
| 518 | err = -ENODEV; |
| 519 | goto err_out_release_regions; |
| 520 | } |
| 521 | |
| 522 | fnic->vdev = vnic_dev_register(NULL, fnic, pdev, &fnic->bar0); |
| 523 | if (!fnic->vdev) { |
| 524 | shost_printk(KERN_ERR, fnic->lport->host, |
| 525 | "vNIC registration failed, " |
| 526 | "aborting.\n"); |
| 527 | err = -ENODEV; |
| 528 | goto err_out_iounmap; |
| 529 | } |
| 530 | |
| 531 | err = fnic_dev_wait(fnic->vdev, vnic_dev_open, |
| 532 | vnic_dev_open_done, 0); |
| 533 | if (err) { |
| 534 | shost_printk(KERN_ERR, fnic->lport->host, |
| 535 | "vNIC dev open failed, aborting.\n"); |
| 536 | goto err_out_vnic_unregister; |
| 537 | } |
| 538 | |
| 539 | err = vnic_dev_init(fnic->vdev, 0); |
| 540 | if (err) { |
| 541 | shost_printk(KERN_ERR, fnic->lport->host, |
| 542 | "vNIC dev init failed, aborting.\n"); |
| 543 | goto err_out_dev_close; |
| 544 | } |
| 545 | |
Joe Eykholt | 78112e5 | 2009-11-03 11:49:22 -0800 | [diff] [blame] | 546 | err = vnic_dev_mac_addr(fnic->vdev, fnic->ctlr.ctl_src_addr); |
Abhijeet Joglekar | 5df6d73 | 2009-04-17 18:33:26 -0700 | [diff] [blame] | 547 | if (err) { |
| 548 | shost_printk(KERN_ERR, fnic->lport->host, |
| 549 | "vNIC get MAC addr failed \n"); |
| 550 | goto err_out_dev_close; |
| 551 | } |
Joe Eykholt | 78112e5 | 2009-11-03 11:49:22 -0800 | [diff] [blame] | 552 | /* set data_src for point-to-point mode and to keep it non-zero */ |
| 553 | memcpy(fnic->data_src_addr, fnic->ctlr.ctl_src_addr, ETH_ALEN); |
Abhijeet Joglekar | 5df6d73 | 2009-04-17 18:33:26 -0700 | [diff] [blame] | 554 | |
| 555 | /* Get vNIC configuration */ |
| 556 | err = fnic_get_vnic_config(fnic); |
| 557 | if (err) { |
| 558 | shost_printk(KERN_ERR, fnic->lport->host, |
| 559 | "Get vNIC configuration failed, " |
| 560 | "aborting.\n"); |
| 561 | goto err_out_dev_close; |
| 562 | } |
| 563 | host->max_lun = fnic->config.luns_per_tgt; |
| 564 | host->max_id = FNIC_MAX_FCP_TARGET; |
Vasu Dev | da87bfa | 2010-04-09 14:22:59 -0700 | [diff] [blame] | 565 | host->max_cmd_len = FCOE_MAX_CMD_LEN; |
Abhijeet Joglekar | 5df6d73 | 2009-04-17 18:33:26 -0700 | [diff] [blame] | 566 | |
| 567 | fnic_get_res_counts(fnic); |
| 568 | |
| 569 | err = fnic_set_intr_mode(fnic); |
| 570 | if (err) { |
| 571 | shost_printk(KERN_ERR, fnic->lport->host, |
| 572 | "Failed to set intr mode, " |
| 573 | "aborting.\n"); |
| 574 | goto err_out_dev_close; |
| 575 | } |
| 576 | |
Abhijeet Joglekar | 5df6d73 | 2009-04-17 18:33:26 -0700 | [diff] [blame] | 577 | err = fnic_alloc_vnic_resources(fnic); |
| 578 | if (err) { |
| 579 | shost_printk(KERN_ERR, fnic->lport->host, |
| 580 | "Failed to alloc vNIC resources, " |
| 581 | "aborting.\n"); |
Abhijeet Joglekar | 2e76f76 | 2009-11-03 11:45:37 -0800 | [diff] [blame] | 582 | goto err_out_clear_intr; |
Abhijeet Joglekar | 5df6d73 | 2009-04-17 18:33:26 -0700 | [diff] [blame] | 583 | } |
| 584 | |
| 585 | |
| 586 | /* initialize all fnic locks */ |
| 587 | spin_lock_init(&fnic->fnic_lock); |
| 588 | |
| 589 | for (i = 0; i < FNIC_WQ_MAX; i++) |
| 590 | spin_lock_init(&fnic->wq_lock[i]); |
| 591 | |
| 592 | for (i = 0; i < FNIC_WQ_COPY_MAX; i++) { |
| 593 | spin_lock_init(&fnic->wq_copy_lock[i]); |
| 594 | fnic->wq_copy_desc_low[i] = DESC_CLEAN_LOW_WATERMARK; |
| 595 | fnic->fw_ack_recd[i] = 0; |
| 596 | fnic->fw_ack_index[i] = -1; |
| 597 | } |
| 598 | |
| 599 | for (i = 0; i < FNIC_IO_LOCKS; i++) |
| 600 | spin_lock_init(&fnic->io_req_lock[i]); |
| 601 | |
| 602 | fnic->io_req_pool = mempool_create_slab_pool(2, fnic_io_req_cache); |
| 603 | if (!fnic->io_req_pool) |
| 604 | goto err_out_free_resources; |
| 605 | |
| 606 | pool = mempool_create(2, fnic_alloc_slab_dma, mempool_free_slab, |
| 607 | fnic_sgl_cache[FNIC_SGL_CACHE_DFLT]); |
| 608 | if (!pool) |
| 609 | goto err_out_free_ioreq_pool; |
| 610 | fnic->io_sgl_pool[FNIC_SGL_CACHE_DFLT] = pool; |
| 611 | |
| 612 | pool = mempool_create(2, fnic_alloc_slab_dma, mempool_free_slab, |
| 613 | fnic_sgl_cache[FNIC_SGL_CACHE_MAX]); |
| 614 | if (!pool) |
| 615 | goto err_out_free_dflt_pool; |
| 616 | fnic->io_sgl_pool[FNIC_SGL_CACHE_MAX] = pool; |
| 617 | |
| 618 | /* setup vlan config, hw inserts vlan header */ |
| 619 | fnic->vlan_hw_insert = 1; |
| 620 | fnic->vlan_id = 0; |
| 621 | |
Joe Eykholt | 78112e5 | 2009-11-03 11:49:22 -0800 | [diff] [blame] | 622 | /* Initialize the FIP fcoe_ctrl struct */ |
| 623 | fnic->ctlr.send = fnic_eth_send; |
| 624 | fnic->ctlr.update_mac = fnic_update_mac; |
| 625 | fnic->ctlr.get_src_addr = fnic_get_mac; |
Joe Eykholt | 78112e5 | 2009-11-03 11:49:22 -0800 | [diff] [blame] | 626 | if (fnic->config.flags & VFCF_FIP_CAPABLE) { |
| 627 | shost_printk(KERN_INFO, fnic->lport->host, |
| 628 | "firmware supports FIP\n"); |
Venkata Siva Vijayendra Bhamidipati | aaa5e56 | 2010-02-16 12:15:44 -0800 | [diff] [blame] | 629 | /* enable directed and multicast */ |
| 630 | vnic_dev_packet_filter(fnic->vdev, 1, 1, 0, 0, 0); |
Joe Eykholt | 78112e5 | 2009-11-03 11:49:22 -0800 | [diff] [blame] | 631 | vnic_dev_add_addr(fnic->vdev, FIP_ALL_ENODE_MACS); |
| 632 | vnic_dev_add_addr(fnic->vdev, fnic->ctlr.ctl_src_addr); |
Joe Eykholt | 3d902ac | 2010-07-20 15:19:58 -0700 | [diff] [blame] | 633 | fcoe_ctlr_init(&fnic->ctlr, FIP_MODE_AUTO); |
Joe Eykholt | 78112e5 | 2009-11-03 11:49:22 -0800 | [diff] [blame] | 634 | } else { |
| 635 | shost_printk(KERN_INFO, fnic->lport->host, |
| 636 | "firmware uses non-FIP mode\n"); |
Joe Eykholt | 3d902ac | 2010-07-20 15:19:58 -0700 | [diff] [blame] | 637 | fcoe_ctlr_init(&fnic->ctlr, FIP_MODE_NON_FIP); |
Joe Eykholt | 78112e5 | 2009-11-03 11:49:22 -0800 | [diff] [blame] | 638 | } |
Abhijeet Joglekar | 5df6d73 | 2009-04-17 18:33:26 -0700 | [diff] [blame] | 639 | fnic->state = FNIC_IN_FC_MODE; |
| 640 | |
| 641 | /* Enable hardware stripping of vlan header on ingress */ |
| 642 | fnic_set_nic_config(fnic, 0, 0, 0, 0, 0, 0, 1); |
| 643 | |
| 644 | /* Setup notification buffer area */ |
| 645 | err = fnic_notify_set(fnic); |
| 646 | if (err) { |
| 647 | shost_printk(KERN_ERR, fnic->lport->host, |
| 648 | "Failed to alloc notify buffer, aborting.\n"); |
| 649 | goto err_out_free_max_pool; |
| 650 | } |
| 651 | |
| 652 | /* Setup notify timer when using MSI interrupts */ |
| 653 | if (vnic_dev_get_intr_mode(fnic->vdev) == VNIC_DEV_INTR_MODE_MSI) |
| 654 | setup_timer(&fnic->notify_timer, |
| 655 | fnic_notify_timer, (unsigned long)fnic); |
| 656 | |
| 657 | /* allocate RQ buffers and post them to RQ*/ |
| 658 | for (i = 0; i < fnic->rq_count; i++) { |
| 659 | err = vnic_rq_fill(&fnic->rq[i], fnic_alloc_rq_frame); |
| 660 | if (err) { |
| 661 | shost_printk(KERN_ERR, fnic->lport->host, |
| 662 | "fnic_alloc_rq_frame can't alloc " |
| 663 | "frame\n"); |
| 664 | goto err_out_free_rq_buf; |
| 665 | } |
| 666 | } |
| 667 | |
| 668 | /* |
| 669 | * Initialization done with PCI system, hardware, firmware. |
| 670 | * Add host to SCSI |
| 671 | */ |
| 672 | err = scsi_add_host(lp->host, &pdev->dev); |
| 673 | if (err) { |
| 674 | shost_printk(KERN_ERR, fnic->lport->host, |
| 675 | "fnic: scsi_add_host failed...exiting\n"); |
| 676 | goto err_out_free_rq_buf; |
| 677 | } |
| 678 | |
| 679 | /* Start local port initiatialization */ |
| 680 | |
| 681 | lp->link_up = 0; |
Abhijeet Joglekar | 5df6d73 | 2009-04-17 18:33:26 -0700 | [diff] [blame] | 682 | |
Abhijeet Joglekar | 5df6d73 | 2009-04-17 18:33:26 -0700 | [diff] [blame] | 683 | lp->max_retry_count = fnic->config.flogi_retries; |
Abhijeet Joglekar | a366695 | 2009-05-01 10:01:26 -0700 | [diff] [blame] | 684 | lp->max_rport_retry_count = fnic->config.plogi_retries; |
Abhijeet Joglekar | 5df6d73 | 2009-04-17 18:33:26 -0700 | [diff] [blame] | 685 | lp->service_params = (FCP_SPPF_INIT_FCN | FCP_SPPF_RD_XRDY_DIS | |
| 686 | FCP_SPPF_CONF_COMPL); |
| 687 | if (fnic->config.flags & VFCF_FCP_SEQ_LVL_ERR) |
| 688 | lp->service_params |= FCP_SPPF_RETRY; |
| 689 | |
| 690 | lp->boot_time = jiffies; |
| 691 | lp->e_d_tov = fnic->config.ed_tov; |
| 692 | lp->r_a_tov = fnic->config.ra_tov; |
| 693 | lp->link_supported_speeds = FC_PORTSPEED_10GBIT; |
| 694 | fc_set_wwnn(lp, fnic->config.node_wwn); |
| 695 | fc_set_wwpn(lp, fnic->config.port_wwn); |
| 696 | |
Joe Eykholt | e10f8c6 | 2010-07-20 15:20:30 -0700 | [diff] [blame] | 697 | fcoe_libfc_config(lp, &fnic->ctlr, &fnic_transport_template, 0); |
Abhijeet Joglekar | 5df6d73 | 2009-04-17 18:33:26 -0700 | [diff] [blame] | 698 | |
Vasu Dev | 52ff878 | 2009-07-29 17:05:10 -0700 | [diff] [blame] | 699 | if (!fc_exch_mgr_alloc(lp, FC_CLASS_3, FCPIO_HOST_EXCH_RANGE_START, |
| 700 | FCPIO_HOST_EXCH_RANGE_END, NULL)) { |
| 701 | err = -ENOMEM; |
| 702 | goto err_out_remove_scsi_host; |
| 703 | } |
| 704 | |
Venkata Siva Vijayendra Bhamidipati | c693a71 | 2010-02-16 12:15:50 -0800 | [diff] [blame] | 705 | fc_lport_init_stats(lp); |
| 706 | |
Abhijeet Joglekar | 5df6d73 | 2009-04-17 18:33:26 -0700 | [diff] [blame] | 707 | fc_lport_config(lp); |
| 708 | |
| 709 | if (fc_set_mfs(lp, fnic->config.maxdatafieldsize + |
| 710 | sizeof(struct fc_frame_header))) { |
| 711 | err = -EINVAL; |
| 712 | goto err_out_free_exch_mgr; |
| 713 | } |
| 714 | fc_host_maxframe_size(lp->host) = lp->mfs; |
| 715 | |
| 716 | sprintf(fc_host_symbolic_name(lp->host), |
| 717 | DRV_NAME " v" DRV_VERSION " over %s", fnic->name); |
| 718 | |
| 719 | spin_lock_irqsave(&fnic_list_lock, flags); |
| 720 | list_add_tail(&fnic->list, &fnic_list); |
| 721 | spin_unlock_irqrestore(&fnic_list_lock, flags); |
| 722 | |
| 723 | INIT_WORK(&fnic->link_work, fnic_handle_link); |
| 724 | INIT_WORK(&fnic->frame_work, fnic_handle_frame); |
| 725 | skb_queue_head_init(&fnic->frame_queue); |
Joe Eykholt | 78112e5 | 2009-11-03 11:49:22 -0800 | [diff] [blame] | 726 | skb_queue_head_init(&fnic->tx_queue); |
Abhijeet Joglekar | 5df6d73 | 2009-04-17 18:33:26 -0700 | [diff] [blame] | 727 | |
| 728 | /* Enable all queues */ |
| 729 | for (i = 0; i < fnic->raw_wq_count; i++) |
| 730 | vnic_wq_enable(&fnic->wq[i]); |
| 731 | for (i = 0; i < fnic->rq_count; i++) |
| 732 | vnic_rq_enable(&fnic->rq[i]); |
| 733 | for (i = 0; i < fnic->wq_copy_count; i++) |
| 734 | vnic_wq_copy_enable(&fnic->wq_copy[i]); |
| 735 | |
| 736 | fc_fabric_login(lp); |
| 737 | |
| 738 | vnic_dev_enable(fnic->vdev); |
Abhijeet Joglekar | 2e76f76 | 2009-11-03 11:45:37 -0800 | [diff] [blame] | 739 | |
| 740 | err = fnic_request_intr(fnic); |
| 741 | if (err) { |
| 742 | shost_printk(KERN_ERR, fnic->lport->host, |
| 743 | "Unable to request irq.\n"); |
| 744 | goto err_out_free_exch_mgr; |
| 745 | } |
| 746 | |
Abhijeet Joglekar | 5df6d73 | 2009-04-17 18:33:26 -0700 | [diff] [blame] | 747 | for (i = 0; i < fnic->intr_count; i++) |
| 748 | vnic_intr_unmask(&fnic->intr[i]); |
| 749 | |
| 750 | fnic_notify_timer_start(fnic); |
| 751 | |
| 752 | return 0; |
| 753 | |
| 754 | err_out_free_exch_mgr: |
Vasu Dev | 52ff878 | 2009-07-29 17:05:10 -0700 | [diff] [blame] | 755 | fc_exch_mgr_free(lp); |
Abhijeet Joglekar | 5df6d73 | 2009-04-17 18:33:26 -0700 | [diff] [blame] | 756 | err_out_remove_scsi_host: |
Joe Eykholt | 78112e5 | 2009-11-03 11:49:22 -0800 | [diff] [blame] | 757 | fc_remove_host(lp->host); |
| 758 | scsi_remove_host(lp->host); |
Abhijeet Joglekar | 5df6d73 | 2009-04-17 18:33:26 -0700 | [diff] [blame] | 759 | err_out_free_rq_buf: |
| 760 | for (i = 0; i < fnic->rq_count; i++) |
| 761 | vnic_rq_clean(&fnic->rq[i], fnic_free_rq_buf); |
| 762 | vnic_dev_notify_unset(fnic->vdev); |
| 763 | err_out_free_max_pool: |
| 764 | mempool_destroy(fnic->io_sgl_pool[FNIC_SGL_CACHE_MAX]); |
| 765 | err_out_free_dflt_pool: |
| 766 | mempool_destroy(fnic->io_sgl_pool[FNIC_SGL_CACHE_DFLT]); |
| 767 | err_out_free_ioreq_pool: |
| 768 | mempool_destroy(fnic->io_req_pool); |
| 769 | err_out_free_resources: |
| 770 | fnic_free_vnic_resources(fnic); |
Abhijeet Joglekar | 5df6d73 | 2009-04-17 18:33:26 -0700 | [diff] [blame] | 771 | err_out_clear_intr: |
| 772 | fnic_clear_intr_mode(fnic); |
| 773 | err_out_dev_close: |
| 774 | vnic_dev_close(fnic->vdev); |
| 775 | err_out_vnic_unregister: |
| 776 | vnic_dev_unregister(fnic->vdev); |
| 777 | err_out_iounmap: |
| 778 | fnic_iounmap(fnic); |
| 779 | err_out_release_regions: |
| 780 | pci_release_regions(pdev); |
| 781 | err_out_disable_device: |
| 782 | pci_disable_device(pdev); |
| 783 | err_out_free_hba: |
| 784 | scsi_host_put(lp->host); |
| 785 | err_out: |
| 786 | return err; |
| 787 | } |
| 788 | |
| 789 | static void __devexit fnic_remove(struct pci_dev *pdev) |
| 790 | { |
| 791 | struct fnic *fnic = pci_get_drvdata(pdev); |
Joe Eykholt | 78112e5 | 2009-11-03 11:49:22 -0800 | [diff] [blame] | 792 | struct fc_lport *lp = fnic->lport; |
Abhijeet Joglekar | 5df6d73 | 2009-04-17 18:33:26 -0700 | [diff] [blame] | 793 | unsigned long flags; |
| 794 | |
| 795 | /* |
| 796 | * Mark state so that the workqueue thread stops forwarding |
| 797 | * received frames and link events to the local port. ISR and |
| 798 | * other threads that can queue work items will also stop |
| 799 | * creating work items on the fnic workqueue |
| 800 | */ |
| 801 | spin_lock_irqsave(&fnic->fnic_lock, flags); |
| 802 | fnic->stop_rx_link_events = 1; |
| 803 | spin_unlock_irqrestore(&fnic->fnic_lock, flags); |
| 804 | |
| 805 | if (vnic_dev_get_intr_mode(fnic->vdev) == VNIC_DEV_INTR_MODE_MSI) |
| 806 | del_timer_sync(&fnic->notify_timer); |
| 807 | |
| 808 | /* |
| 809 | * Flush the fnic event queue. After this call, there should |
| 810 | * be no event queued for this fnic device in the workqueue |
| 811 | */ |
| 812 | flush_workqueue(fnic_event_queue); |
| 813 | skb_queue_purge(&fnic->frame_queue); |
Joe Eykholt | 78112e5 | 2009-11-03 11:49:22 -0800 | [diff] [blame] | 814 | skb_queue_purge(&fnic->tx_queue); |
Abhijeet Joglekar | 5df6d73 | 2009-04-17 18:33:26 -0700 | [diff] [blame] | 815 | |
| 816 | /* |
| 817 | * Log off the fabric. This stops all remote ports, dns port, |
| 818 | * logs off the fabric. This flushes all rport, disc, lport work |
| 819 | * before returning |
| 820 | */ |
| 821 | fc_fabric_logoff(fnic->lport); |
| 822 | |
| 823 | spin_lock_irqsave(&fnic->fnic_lock, flags); |
| 824 | fnic->in_remove = 1; |
| 825 | spin_unlock_irqrestore(&fnic->fnic_lock, flags); |
| 826 | |
Joe Eykholt | 78112e5 | 2009-11-03 11:49:22 -0800 | [diff] [blame] | 827 | fcoe_ctlr_destroy(&fnic->ctlr); |
| 828 | fc_lport_destroy(lp); |
Abhijeet Joglekar | 5df6d73 | 2009-04-17 18:33:26 -0700 | [diff] [blame] | 829 | |
| 830 | /* |
| 831 | * This stops the fnic device, masks all interrupts. Completed |
| 832 | * CQ entries are drained. Posted WQ/RQ/Copy-WQ entries are |
| 833 | * cleaned up |
| 834 | */ |
| 835 | fnic_cleanup(fnic); |
| 836 | |
| 837 | BUG_ON(!skb_queue_empty(&fnic->frame_queue)); |
Joe Eykholt | 78112e5 | 2009-11-03 11:49:22 -0800 | [diff] [blame] | 838 | BUG_ON(!skb_queue_empty(&fnic->tx_queue)); |
Abhijeet Joglekar | 5df6d73 | 2009-04-17 18:33:26 -0700 | [diff] [blame] | 839 | |
| 840 | spin_lock_irqsave(&fnic_list_lock, flags); |
| 841 | list_del(&fnic->list); |
| 842 | spin_unlock_irqrestore(&fnic_list_lock, flags); |
| 843 | |
| 844 | fc_remove_host(fnic->lport->host); |
| 845 | scsi_remove_host(fnic->lport->host); |
Vasu Dev | 52ff878 | 2009-07-29 17:05:10 -0700 | [diff] [blame] | 846 | fc_exch_mgr_free(fnic->lport); |
Abhijeet Joglekar | 5df6d73 | 2009-04-17 18:33:26 -0700 | [diff] [blame] | 847 | vnic_dev_notify_unset(fnic->vdev); |
Abhijeet Joglekar | 5df6d73 | 2009-04-17 18:33:26 -0700 | [diff] [blame] | 848 | fnic_free_intr(fnic); |
Abhijeet Joglekar | 2e76f76 | 2009-11-03 11:45:37 -0800 | [diff] [blame] | 849 | fnic_free_vnic_resources(fnic); |
Abhijeet Joglekar | 5df6d73 | 2009-04-17 18:33:26 -0700 | [diff] [blame] | 850 | fnic_clear_intr_mode(fnic); |
| 851 | vnic_dev_close(fnic->vdev); |
| 852 | vnic_dev_unregister(fnic->vdev); |
| 853 | fnic_iounmap(fnic); |
| 854 | pci_release_regions(pdev); |
| 855 | pci_disable_device(pdev); |
| 856 | pci_set_drvdata(pdev, NULL); |
Joe Eykholt | 78112e5 | 2009-11-03 11:49:22 -0800 | [diff] [blame] | 857 | scsi_host_put(lp->host); |
Abhijeet Joglekar | 5df6d73 | 2009-04-17 18:33:26 -0700 | [diff] [blame] | 858 | } |
| 859 | |
| 860 | static struct pci_driver fnic_driver = { |
| 861 | .name = DRV_NAME, |
| 862 | .id_table = fnic_id_table, |
| 863 | .probe = fnic_probe, |
| 864 | .remove = __devexit_p(fnic_remove), |
| 865 | }; |
| 866 | |
| 867 | static int __init fnic_init_module(void) |
| 868 | { |
| 869 | size_t len; |
| 870 | int err = 0; |
| 871 | |
| 872 | printk(KERN_INFO PFX "%s, ver %s\n", DRV_DESCRIPTION, DRV_VERSION); |
| 873 | |
| 874 | /* Create a cache for allocation of default size sgls */ |
| 875 | len = sizeof(struct fnic_dflt_sgl_list); |
| 876 | fnic_sgl_cache[FNIC_SGL_CACHE_DFLT] = kmem_cache_create |
| 877 | ("fnic_sgl_dflt", len + FNIC_SG_DESC_ALIGN, FNIC_SG_DESC_ALIGN, |
| 878 | SLAB_HWCACHE_ALIGN | SLAB_CACHE_DMA, |
| 879 | NULL); |
| 880 | if (!fnic_sgl_cache[FNIC_SGL_CACHE_DFLT]) { |
| 881 | printk(KERN_ERR PFX "failed to create fnic dflt sgl slab\n"); |
| 882 | err = -ENOMEM; |
| 883 | goto err_create_fnic_sgl_slab_dflt; |
| 884 | } |
| 885 | |
| 886 | /* Create a cache for allocation of max size sgls*/ |
| 887 | len = sizeof(struct fnic_sgl_list); |
| 888 | fnic_sgl_cache[FNIC_SGL_CACHE_MAX] = kmem_cache_create |
| 889 | ("fnic_sgl_max", len + FNIC_SG_DESC_ALIGN, FNIC_SG_DESC_ALIGN, |
| 890 | SLAB_HWCACHE_ALIGN | SLAB_CACHE_DMA, |
| 891 | NULL); |
| 892 | if (!fnic_sgl_cache[FNIC_SGL_CACHE_MAX]) { |
| 893 | printk(KERN_ERR PFX "failed to create fnic max sgl slab\n"); |
| 894 | err = -ENOMEM; |
| 895 | goto err_create_fnic_sgl_slab_max; |
| 896 | } |
| 897 | |
| 898 | /* Create a cache of io_req structs for use via mempool */ |
| 899 | fnic_io_req_cache = kmem_cache_create("fnic_io_req", |
| 900 | sizeof(struct fnic_io_req), |
| 901 | 0, SLAB_HWCACHE_ALIGN, NULL); |
| 902 | if (!fnic_io_req_cache) { |
| 903 | printk(KERN_ERR PFX "failed to create fnic io_req slab\n"); |
| 904 | err = -ENOMEM; |
| 905 | goto err_create_fnic_ioreq_slab; |
| 906 | } |
| 907 | |
| 908 | fnic_event_queue = create_singlethread_workqueue("fnic_event_wq"); |
| 909 | if (!fnic_event_queue) { |
| 910 | printk(KERN_ERR PFX "fnic work queue create failed\n"); |
| 911 | err = -ENOMEM; |
| 912 | goto err_create_fnic_workq; |
| 913 | } |
| 914 | |
| 915 | spin_lock_init(&fnic_list_lock); |
| 916 | INIT_LIST_HEAD(&fnic_list); |
| 917 | |
| 918 | fnic_fc_transport = fc_attach_transport(&fnic_fc_functions); |
| 919 | if (!fnic_fc_transport) { |
| 920 | printk(KERN_ERR PFX "fc_attach_transport error\n"); |
| 921 | err = -ENOMEM; |
| 922 | goto err_fc_transport; |
| 923 | } |
| 924 | |
| 925 | /* register the driver with PCI system */ |
| 926 | err = pci_register_driver(&fnic_driver); |
| 927 | if (err < 0) { |
| 928 | printk(KERN_ERR PFX "pci register error\n"); |
| 929 | goto err_pci_register; |
| 930 | } |
| 931 | return err; |
| 932 | |
| 933 | err_pci_register: |
| 934 | fc_release_transport(fnic_fc_transport); |
| 935 | err_fc_transport: |
| 936 | destroy_workqueue(fnic_event_queue); |
| 937 | err_create_fnic_workq: |
| 938 | kmem_cache_destroy(fnic_io_req_cache); |
| 939 | err_create_fnic_ioreq_slab: |
| 940 | kmem_cache_destroy(fnic_sgl_cache[FNIC_SGL_CACHE_MAX]); |
| 941 | err_create_fnic_sgl_slab_max: |
| 942 | kmem_cache_destroy(fnic_sgl_cache[FNIC_SGL_CACHE_DFLT]); |
| 943 | err_create_fnic_sgl_slab_dflt: |
| 944 | return err; |
| 945 | } |
| 946 | |
| 947 | static void __exit fnic_cleanup_module(void) |
| 948 | { |
| 949 | pci_unregister_driver(&fnic_driver); |
| 950 | destroy_workqueue(fnic_event_queue); |
| 951 | kmem_cache_destroy(fnic_sgl_cache[FNIC_SGL_CACHE_MAX]); |
| 952 | kmem_cache_destroy(fnic_sgl_cache[FNIC_SGL_CACHE_DFLT]); |
| 953 | kmem_cache_destroy(fnic_io_req_cache); |
| 954 | fc_release_transport(fnic_fc_transport); |
| 955 | } |
| 956 | |
| 957 | module_init(fnic_init_module); |
| 958 | module_exit(fnic_cleanup_module); |
| 959 | |