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a3667aae NKI |
1 | /* |
2 | * This file is part of the Chelsio FCoE driver for Linux. | |
3 | * | |
4 | * Copyright (c) 2008-2012 Chelsio Communications, Inc. All rights reserved. | |
5 | * | |
6 | * This software is available to you under a choice of one of two | |
7 | * licenses. You may choose to be licensed under the terms of the GNU | |
8 | * General Public License (GPL) Version 2, available from the file | |
9 | * COPYING in the main directory of this source tree, or the | |
10 | * OpenIB.org BSD license below: | |
11 | * | |
12 | * Redistribution and use in source and binary forms, with or | |
13 | * without modification, are permitted provided that the following | |
14 | * conditions are met: | |
15 | * | |
16 | * - Redistributions of source code must retain the above | |
17 | * copyright notice, this list of conditions and the following | |
18 | * disclaimer. | |
19 | * | |
20 | * - Redistributions in binary form must reproduce the above | |
21 | * copyright notice, this list of conditions and the following | |
22 | * disclaimer in the documentation and/or other materials | |
23 | * provided with the distribution. | |
24 | * | |
25 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
26 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
27 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
28 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS | |
29 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |
30 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
31 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
32 | * SOFTWARE. | |
33 | */ | |
34 | ||
35 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt | |
36 | ||
37 | #include <linux/kernel.h> | |
38 | #include <linux/module.h> | |
39 | #include <linux/init.h> | |
40 | #include <linux/pci.h> | |
41 | #include <linux/aer.h> | |
42 | #include <linux/mm.h> | |
43 | #include <linux/notifier.h> | |
44 | #include <linux/kdebug.h> | |
45 | #include <linux/seq_file.h> | |
46 | #include <linux/debugfs.h> | |
47 | #include <linux/string.h> | |
48 | #include <linux/export.h> | |
49 | ||
50 | #include "csio_init.h" | |
51 | #include "csio_defs.h" | |
52 | ||
53 | #define CSIO_MIN_MEMPOOL_SZ 64 | |
54 | ||
55 | static struct dentry *csio_debugfs_root; | |
56 | ||
57 | static struct scsi_transport_template *csio_fcoe_transport; | |
58 | static struct scsi_transport_template *csio_fcoe_transport_vport; | |
59 | ||
60 | /* | |
61 | * debugfs support | |
62 | */ | |
a3667aae NKI |
63 | static ssize_t |
64 | csio_mem_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) | |
65 | { | |
66 | loff_t pos = *ppos; | |
496ad9aa | 67 | loff_t avail = file_inode(file)->i_size; |
a3667aae NKI |
68 | unsigned int mem = (uintptr_t)file->private_data & 3; |
69 | struct csio_hw *hw = file->private_data - mem; | |
70 | ||
71 | if (pos < 0) | |
72 | return -EINVAL; | |
73 | if (pos >= avail) | |
74 | return 0; | |
75 | if (count > avail - pos) | |
76 | count = avail - pos; | |
77 | ||
78 | while (count) { | |
79 | size_t len; | |
80 | int ret, ofst; | |
81 | __be32 data[16]; | |
82 | ||
83 | if (mem == MEM_MC) | |
7cc16380 AB |
84 | ret = hw->chip_ops->chip_mc_read(hw, 0, pos, |
85 | data, NULL); | |
a3667aae | 86 | else |
7cc16380 AB |
87 | ret = hw->chip_ops->chip_edc_read(hw, mem, pos, |
88 | data, NULL); | |
a3667aae NKI |
89 | if (ret) |
90 | return ret; | |
91 | ||
92 | ofst = pos % sizeof(data); | |
93 | len = min(count, sizeof(data) - ofst); | |
94 | if (copy_to_user(buf, (u8 *)data + ofst, len)) | |
95 | return -EFAULT; | |
96 | ||
97 | buf += len; | |
98 | pos += len; | |
99 | count -= len; | |
100 | } | |
101 | count = pos - *ppos; | |
102 | *ppos = pos; | |
103 | return count; | |
104 | } | |
105 | ||
106 | static const struct file_operations csio_mem_debugfs_fops = { | |
107 | .owner = THIS_MODULE, | |
f07cda8f | 108 | .open = simple_open, |
a3667aae NKI |
109 | .read = csio_mem_read, |
110 | .llseek = default_llseek, | |
111 | }; | |
112 | ||
7cc16380 | 113 | void csio_add_debugfs_mem(struct csio_hw *hw, const char *name, |
6f039790 | 114 | unsigned int idx, unsigned int size_mb) |
a3667aae NKI |
115 | { |
116 | struct dentry *de; | |
117 | ||
118 | de = debugfs_create_file(name, S_IRUSR, hw->debugfs_root, | |
119 | (void *)hw + idx, &csio_mem_debugfs_fops); | |
120 | if (de && de->d_inode) | |
121 | de->d_inode->i_size = size_mb << 20; | |
122 | } | |
123 | ||
6f039790 | 124 | static int csio_setup_debugfs(struct csio_hw *hw) |
a3667aae NKI |
125 | { |
126 | int i; | |
127 | ||
128 | if (IS_ERR_OR_NULL(hw->debugfs_root)) | |
129 | return -1; | |
130 | ||
131 | i = csio_rd_reg32(hw, MA_TARGET_MEM_ENABLE); | |
132 | if (i & EDRAM0_ENABLE) | |
133 | csio_add_debugfs_mem(hw, "edc0", MEM_EDC0, 5); | |
134 | if (i & EDRAM1_ENABLE) | |
135 | csio_add_debugfs_mem(hw, "edc1", MEM_EDC1, 5); | |
7cc16380 AB |
136 | |
137 | hw->chip_ops->chip_dfs_create_ext_mem(hw); | |
a3667aae NKI |
138 | return 0; |
139 | } | |
140 | ||
141 | /* | |
142 | * csio_dfs_create - Creates and sets up per-hw debugfs. | |
143 | * | |
144 | */ | |
145 | static int | |
146 | csio_dfs_create(struct csio_hw *hw) | |
147 | { | |
148 | if (csio_debugfs_root) { | |
149 | hw->debugfs_root = debugfs_create_dir(pci_name(hw->pdev), | |
150 | csio_debugfs_root); | |
151 | csio_setup_debugfs(hw); | |
152 | } | |
153 | ||
154 | return 0; | |
155 | } | |
156 | ||
157 | /* | |
158 | * csio_dfs_destroy - Destroys per-hw debugfs. | |
159 | */ | |
160 | static int | |
161 | csio_dfs_destroy(struct csio_hw *hw) | |
162 | { | |
163 | if (hw->debugfs_root) | |
164 | debugfs_remove_recursive(hw->debugfs_root); | |
165 | ||
166 | return 0; | |
167 | } | |
168 | ||
169 | /* | |
170 | * csio_dfs_init - Debug filesystem initialization for the module. | |
171 | * | |
172 | */ | |
173 | static int | |
174 | csio_dfs_init(void) | |
175 | { | |
176 | csio_debugfs_root = debugfs_create_dir(KBUILD_MODNAME, NULL); | |
177 | if (!csio_debugfs_root) | |
178 | pr_warn("Could not create debugfs entry, continuing\n"); | |
179 | ||
180 | return 0; | |
181 | } | |
182 | ||
183 | /* | |
184 | * csio_dfs_exit - debugfs cleanup for the module. | |
185 | */ | |
186 | static void | |
187 | csio_dfs_exit(void) | |
188 | { | |
189 | debugfs_remove(csio_debugfs_root); | |
190 | } | |
191 | ||
192 | /* | |
193 | * csio_pci_init - PCI initialization. | |
194 | * @pdev: PCI device. | |
195 | * @bars: Bitmask of bars to be requested. | |
196 | * | |
197 | * Initializes the PCI function by enabling MMIO, setting bus | |
198 | * mastership and setting DMA mask. | |
199 | */ | |
200 | static int | |
201 | csio_pci_init(struct pci_dev *pdev, int *bars) | |
202 | { | |
203 | int rv = -ENODEV; | |
204 | ||
205 | *bars = pci_select_bars(pdev, IORESOURCE_MEM); | |
206 | ||
207 | if (pci_enable_device_mem(pdev)) | |
208 | goto err; | |
209 | ||
210 | if (pci_request_selected_regions(pdev, *bars, KBUILD_MODNAME)) | |
211 | goto err_disable_device; | |
212 | ||
213 | pci_set_master(pdev); | |
214 | pci_try_set_mwi(pdev); | |
215 | ||
216 | if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) { | |
217 | pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)); | |
218 | } else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) { | |
219 | pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); | |
220 | } else { | |
221 | dev_err(&pdev->dev, "No suitable DMA available.\n"); | |
222 | goto err_release_regions; | |
223 | } | |
224 | ||
225 | return 0; | |
226 | ||
227 | err_release_regions: | |
228 | pci_release_selected_regions(pdev, *bars); | |
229 | err_disable_device: | |
230 | pci_disable_device(pdev); | |
231 | err: | |
232 | return rv; | |
233 | ||
234 | } | |
235 | ||
236 | /* | |
237 | * csio_pci_exit - PCI unitialization. | |
238 | * @pdev: PCI device. | |
239 | * @bars: Bars to be released. | |
240 | * | |
241 | */ | |
242 | static void | |
243 | csio_pci_exit(struct pci_dev *pdev, int *bars) | |
244 | { | |
245 | pci_release_selected_regions(pdev, *bars); | |
246 | pci_disable_device(pdev); | |
247 | } | |
248 | ||
249 | /* | |
250 | * csio_hw_init_workers - Initialize the HW module's worker threads. | |
251 | * @hw: HW module. | |
252 | * | |
253 | */ | |
254 | static void | |
255 | csio_hw_init_workers(struct csio_hw *hw) | |
256 | { | |
257 | INIT_WORK(&hw->evtq_work, csio_evtq_worker); | |
258 | } | |
259 | ||
260 | static void | |
261 | csio_hw_exit_workers(struct csio_hw *hw) | |
262 | { | |
263 | cancel_work_sync(&hw->evtq_work); | |
264 | flush_scheduled_work(); | |
265 | } | |
266 | ||
267 | static int | |
268 | csio_create_queues(struct csio_hw *hw) | |
269 | { | |
270 | int i, j; | |
271 | struct csio_mgmtm *mgmtm = csio_hw_to_mgmtm(hw); | |
272 | int rv; | |
273 | struct csio_scsi_cpu_info *info; | |
274 | ||
275 | if (hw->flags & CSIO_HWF_Q_FW_ALLOCED) | |
276 | return 0; | |
277 | ||
278 | if (hw->intr_mode != CSIO_IM_MSIX) { | |
279 | rv = csio_wr_iq_create(hw, NULL, hw->intr_iq_idx, | |
280 | 0, hw->pport[0].portid, false, NULL); | |
281 | if (rv != 0) { | |
282 | csio_err(hw, " Forward Interrupt IQ failed!: %d\n", rv); | |
283 | return rv; | |
284 | } | |
285 | } | |
286 | ||
287 | /* FW event queue */ | |
288 | rv = csio_wr_iq_create(hw, NULL, hw->fwevt_iq_idx, | |
289 | csio_get_fwevt_intr_idx(hw), | |
290 | hw->pport[0].portid, true, NULL); | |
291 | if (rv != 0) { | |
292 | csio_err(hw, "FW event IQ config failed!: %d\n", rv); | |
293 | return rv; | |
294 | } | |
295 | ||
296 | /* Create mgmt queue */ | |
297 | rv = csio_wr_eq_create(hw, NULL, mgmtm->eq_idx, | |
298 | mgmtm->iq_idx, hw->pport[0].portid, NULL); | |
299 | ||
300 | if (rv != 0) { | |
301 | csio_err(hw, "Mgmt EQ create failed!: %d\n", rv); | |
302 | goto err; | |
303 | } | |
304 | ||
305 | /* Create SCSI queues */ | |
306 | for (i = 0; i < hw->num_pports; i++) { | |
307 | info = &hw->scsi_cpu_info[i]; | |
308 | ||
309 | for (j = 0; j < info->max_cpus; j++) { | |
310 | struct csio_scsi_qset *sqset = &hw->sqset[i][j]; | |
311 | ||
312 | rv = csio_wr_iq_create(hw, NULL, sqset->iq_idx, | |
313 | sqset->intr_idx, i, false, NULL); | |
314 | if (rv != 0) { | |
315 | csio_err(hw, | |
316 | "SCSI module IQ config failed [%d][%d]:%d\n", | |
317 | i, j, rv); | |
318 | goto err; | |
319 | } | |
320 | rv = csio_wr_eq_create(hw, NULL, sqset->eq_idx, | |
321 | sqset->iq_idx, i, NULL); | |
322 | if (rv != 0) { | |
323 | csio_err(hw, | |
324 | "SCSI module EQ config failed [%d][%d]:%d\n", | |
325 | i, j, rv); | |
326 | goto err; | |
327 | } | |
328 | } /* for all CPUs */ | |
329 | } /* For all ports */ | |
330 | ||
331 | hw->flags |= CSIO_HWF_Q_FW_ALLOCED; | |
332 | return 0; | |
333 | err: | |
334 | csio_wr_destroy_queues(hw, true); | |
335 | return -EINVAL; | |
336 | } | |
337 | ||
338 | /* | |
339 | * csio_config_queues - Configure the DMA queues. | |
340 | * @hw: HW module. | |
341 | * | |
342 | * Allocates memory for queues are registers them with FW. | |
343 | */ | |
344 | int | |
345 | csio_config_queues(struct csio_hw *hw) | |
346 | { | |
347 | int i, j, idx, k = 0; | |
348 | int rv; | |
349 | struct csio_scsi_qset *sqset; | |
350 | struct csio_mgmtm *mgmtm = csio_hw_to_mgmtm(hw); | |
351 | struct csio_scsi_qset *orig; | |
352 | struct csio_scsi_cpu_info *info; | |
353 | ||
354 | if (hw->flags & CSIO_HWF_Q_MEM_ALLOCED) | |
355 | return csio_create_queues(hw); | |
356 | ||
357 | /* Calculate number of SCSI queues for MSIX we would like */ | |
358 | hw->num_scsi_msix_cpus = num_online_cpus(); | |
359 | hw->num_sqsets = num_online_cpus() * hw->num_pports; | |
360 | ||
361 | if (hw->num_sqsets > CSIO_MAX_SCSI_QSETS) { | |
362 | hw->num_sqsets = CSIO_MAX_SCSI_QSETS; | |
363 | hw->num_scsi_msix_cpus = CSIO_MAX_SCSI_CPU; | |
364 | } | |
365 | ||
366 | /* Initialize max_cpus, may get reduced during msix allocations */ | |
367 | for (i = 0; i < hw->num_pports; i++) | |
368 | hw->scsi_cpu_info[i].max_cpus = hw->num_scsi_msix_cpus; | |
369 | ||
370 | csio_dbg(hw, "nsqsets:%d scpus:%d\n", | |
371 | hw->num_sqsets, hw->num_scsi_msix_cpus); | |
372 | ||
373 | csio_intr_enable(hw); | |
374 | ||
375 | if (hw->intr_mode != CSIO_IM_MSIX) { | |
376 | ||
377 | /* Allocate Forward interrupt iq. */ | |
378 | hw->intr_iq_idx = csio_wr_alloc_q(hw, CSIO_INTR_IQSIZE, | |
379 | CSIO_INTR_WRSIZE, CSIO_INGRESS, | |
380 | (void *)hw, 0, 0, NULL); | |
381 | if (hw->intr_iq_idx == -1) { | |
382 | csio_err(hw, | |
383 | "Forward interrupt queue creation failed\n"); | |
384 | goto intr_disable; | |
385 | } | |
386 | } | |
387 | ||
388 | /* Allocate the FW evt queue */ | |
389 | hw->fwevt_iq_idx = csio_wr_alloc_q(hw, CSIO_FWEVT_IQSIZE, | |
390 | CSIO_FWEVT_WRSIZE, | |
391 | CSIO_INGRESS, (void *)hw, | |
392 | CSIO_FWEVT_FLBUFS, 0, | |
393 | csio_fwevt_intx_handler); | |
394 | if (hw->fwevt_iq_idx == -1) { | |
395 | csio_err(hw, "FW evt queue creation failed\n"); | |
396 | goto intr_disable; | |
397 | } | |
398 | ||
399 | /* Allocate the mgmt queue */ | |
400 | mgmtm->eq_idx = csio_wr_alloc_q(hw, CSIO_MGMT_EQSIZE, | |
401 | CSIO_MGMT_EQ_WRSIZE, | |
402 | CSIO_EGRESS, (void *)hw, 0, 0, NULL); | |
403 | if (mgmtm->eq_idx == -1) { | |
404 | csio_err(hw, "Failed to alloc egress queue for mgmt module\n"); | |
405 | goto intr_disable; | |
406 | } | |
407 | ||
408 | /* Use FW IQ for MGMT req completion */ | |
409 | mgmtm->iq_idx = hw->fwevt_iq_idx; | |
410 | ||
411 | /* Allocate SCSI queues */ | |
412 | for (i = 0; i < hw->num_pports; i++) { | |
413 | info = &hw->scsi_cpu_info[i]; | |
414 | ||
415 | for (j = 0; j < hw->num_scsi_msix_cpus; j++) { | |
416 | sqset = &hw->sqset[i][j]; | |
417 | ||
418 | if (j >= info->max_cpus) { | |
419 | k = j % info->max_cpus; | |
420 | orig = &hw->sqset[i][k]; | |
421 | sqset->eq_idx = orig->eq_idx; | |
422 | sqset->iq_idx = orig->iq_idx; | |
423 | continue; | |
424 | } | |
425 | ||
426 | idx = csio_wr_alloc_q(hw, csio_scsi_eqsize, 0, | |
427 | CSIO_EGRESS, (void *)hw, 0, 0, | |
428 | NULL); | |
429 | if (idx == -1) { | |
430 | csio_err(hw, "EQ creation failed for idx:%d\n", | |
431 | idx); | |
432 | goto intr_disable; | |
433 | } | |
434 | ||
435 | sqset->eq_idx = idx; | |
436 | ||
437 | idx = csio_wr_alloc_q(hw, CSIO_SCSI_IQSIZE, | |
438 | CSIO_SCSI_IQ_WRSZ, CSIO_INGRESS, | |
439 | (void *)hw, 0, 0, | |
440 | csio_scsi_intx_handler); | |
441 | if (idx == -1) { | |
442 | csio_err(hw, "IQ creation failed for idx:%d\n", | |
443 | idx); | |
444 | goto intr_disable; | |
445 | } | |
446 | sqset->iq_idx = idx; | |
447 | } /* for all CPUs */ | |
448 | } /* For all ports */ | |
449 | ||
450 | hw->flags |= CSIO_HWF_Q_MEM_ALLOCED; | |
451 | ||
452 | rv = csio_create_queues(hw); | |
453 | if (rv != 0) | |
454 | goto intr_disable; | |
455 | ||
456 | /* | |
457 | * Now request IRQs for the vectors. In the event of a failure, | |
458 | * cleanup is handled internally by this function. | |
459 | */ | |
460 | rv = csio_request_irqs(hw); | |
461 | if (rv != 0) | |
462 | return -EINVAL; | |
463 | ||
464 | return 0; | |
465 | ||
466 | intr_disable: | |
467 | csio_intr_disable(hw, false); | |
468 | ||
469 | return -EINVAL; | |
470 | } | |
471 | ||
472 | static int | |
473 | csio_resource_alloc(struct csio_hw *hw) | |
474 | { | |
475 | struct csio_wrm *wrm = csio_hw_to_wrm(hw); | |
476 | int rv = -ENOMEM; | |
477 | ||
478 | wrm->num_q = ((CSIO_MAX_SCSI_QSETS * 2) + CSIO_HW_NIQ + | |
479 | CSIO_HW_NEQ + CSIO_HW_NFLQ + CSIO_HW_NINTXQ); | |
480 | ||
481 | hw->mb_mempool = mempool_create_kmalloc_pool(CSIO_MIN_MEMPOOL_SZ, | |
482 | sizeof(struct csio_mb)); | |
483 | if (!hw->mb_mempool) | |
484 | goto err; | |
485 | ||
486 | hw->rnode_mempool = mempool_create_kmalloc_pool(CSIO_MIN_MEMPOOL_SZ, | |
487 | sizeof(struct csio_rnode)); | |
488 | if (!hw->rnode_mempool) | |
489 | goto err_free_mb_mempool; | |
490 | ||
491 | hw->scsi_pci_pool = pci_pool_create("csio_scsi_pci_pool", hw->pdev, | |
492 | CSIO_SCSI_RSP_LEN, 8, 0); | |
493 | if (!hw->scsi_pci_pool) | |
494 | goto err_free_rn_pool; | |
495 | ||
496 | return 0; | |
497 | ||
498 | err_free_rn_pool: | |
499 | mempool_destroy(hw->rnode_mempool); | |
500 | hw->rnode_mempool = NULL; | |
501 | err_free_mb_mempool: | |
502 | mempool_destroy(hw->mb_mempool); | |
503 | hw->mb_mempool = NULL; | |
504 | err: | |
505 | return rv; | |
506 | } | |
507 | ||
508 | static void | |
509 | csio_resource_free(struct csio_hw *hw) | |
510 | { | |
511 | pci_pool_destroy(hw->scsi_pci_pool); | |
512 | hw->scsi_pci_pool = NULL; | |
513 | mempool_destroy(hw->rnode_mempool); | |
514 | hw->rnode_mempool = NULL; | |
515 | mempool_destroy(hw->mb_mempool); | |
516 | hw->mb_mempool = NULL; | |
517 | } | |
518 | ||
519 | /* | |
520 | * csio_hw_alloc - Allocate and initialize the HW module. | |
521 | * @pdev: PCI device. | |
522 | * | |
523 | * Allocates HW structure, DMA, memory resources, maps BARS to | |
524 | * host memory and initializes HW module. | |
525 | */ | |
6f039790 | 526 | static struct csio_hw *csio_hw_alloc(struct pci_dev *pdev) |
a3667aae NKI |
527 | { |
528 | struct csio_hw *hw; | |
529 | ||
530 | hw = kzalloc(sizeof(struct csio_hw), GFP_KERNEL); | |
531 | if (!hw) | |
532 | goto err; | |
533 | ||
534 | hw->pdev = pdev; | |
535 | strncpy(hw->drv_version, CSIO_DRV_VERSION, 32); | |
536 | ||
537 | /* memory pool/DMA pool allocation */ | |
538 | if (csio_resource_alloc(hw)) | |
539 | goto err_free_hw; | |
540 | ||
541 | /* Get the start address of registers from BAR 0 */ | |
542 | hw->regstart = ioremap_nocache(pci_resource_start(pdev, 0), | |
543 | pci_resource_len(pdev, 0)); | |
544 | if (!hw->regstart) { | |
545 | csio_err(hw, "Could not map BAR 0, regstart = %p\n", | |
546 | hw->regstart); | |
547 | goto err_resource_free; | |
548 | } | |
549 | ||
550 | csio_hw_init_workers(hw); | |
551 | ||
552 | if (csio_hw_init(hw)) | |
553 | goto err_unmap_bar; | |
554 | ||
555 | csio_dfs_create(hw); | |
556 | ||
557 | csio_dbg(hw, "hw:%p\n", hw); | |
558 | ||
559 | return hw; | |
560 | ||
561 | err_unmap_bar: | |
562 | csio_hw_exit_workers(hw); | |
563 | iounmap(hw->regstart); | |
564 | err_resource_free: | |
565 | csio_resource_free(hw); | |
566 | err_free_hw: | |
567 | kfree(hw); | |
568 | err: | |
569 | return NULL; | |
570 | } | |
571 | ||
572 | /* | |
573 | * csio_hw_free - Uninitialize and free the HW module. | |
574 | * @hw: The HW module | |
575 | * | |
576 | * Disable interrupts, uninit the HW module, free resources, free hw. | |
577 | */ | |
578 | static void | |
579 | csio_hw_free(struct csio_hw *hw) | |
580 | { | |
581 | csio_intr_disable(hw, true); | |
582 | csio_hw_exit_workers(hw); | |
583 | csio_hw_exit(hw); | |
584 | iounmap(hw->regstart); | |
585 | csio_dfs_destroy(hw); | |
586 | csio_resource_free(hw); | |
587 | kfree(hw); | |
588 | } | |
589 | ||
590 | /** | |
591 | * csio_shost_init - Create and initialize the lnode module. | |
592 | * @hw: The HW module. | |
593 | * @dev: The device associated with this invocation. | |
594 | * @probe: Called from probe context or not? | |
595 | * @os_pln: Parent lnode if any. | |
596 | * | |
597 | * Allocates lnode structure via scsi_host_alloc, initializes | |
598 | * shost, initializes lnode module and registers with SCSI ML | |
599 | * via scsi_host_add. This function is shared between physical and | |
600 | * virtual node ports. | |
601 | */ | |
602 | struct csio_lnode * | |
603 | csio_shost_init(struct csio_hw *hw, struct device *dev, | |
604 | bool probe, struct csio_lnode *pln) | |
605 | { | |
606 | struct Scsi_Host *shost = NULL; | |
607 | struct csio_lnode *ln; | |
608 | ||
609 | csio_fcoe_shost_template.cmd_per_lun = csio_lun_qdepth; | |
610 | csio_fcoe_shost_vport_template.cmd_per_lun = csio_lun_qdepth; | |
611 | ||
612 | /* | |
613 | * hw->pdev is the physical port's PCI dev structure, | |
614 | * which will be different from the NPIV dev structure. | |
615 | */ | |
616 | if (dev == &hw->pdev->dev) | |
617 | shost = scsi_host_alloc( | |
618 | &csio_fcoe_shost_template, | |
619 | sizeof(struct csio_lnode)); | |
620 | else | |
621 | shost = scsi_host_alloc( | |
622 | &csio_fcoe_shost_vport_template, | |
623 | sizeof(struct csio_lnode)); | |
624 | ||
625 | if (!shost) | |
626 | goto err; | |
627 | ||
628 | ln = shost_priv(shost); | |
629 | memset(ln, 0, sizeof(struct csio_lnode)); | |
630 | ||
631 | /* Link common lnode to this lnode */ | |
632 | ln->dev_num = (shost->host_no << 16); | |
633 | ||
634 | shost->can_queue = CSIO_MAX_QUEUE; | |
635 | shost->this_id = -1; | |
636 | shost->unique_id = shost->host_no; | |
637 | shost->max_cmd_len = 16; /* Max CDB length supported */ | |
638 | shost->max_id = min_t(uint32_t, csio_fcoe_rnodes, | |
639 | hw->fres_info.max_ssns); | |
640 | shost->max_lun = CSIO_MAX_LUN; | |
641 | if (dev == &hw->pdev->dev) | |
642 | shost->transportt = csio_fcoe_transport; | |
643 | else | |
644 | shost->transportt = csio_fcoe_transport_vport; | |
645 | ||
646 | /* root lnode */ | |
647 | if (!hw->rln) | |
648 | hw->rln = ln; | |
649 | ||
650 | /* Other initialization here: Common, Transport specific */ | |
651 | if (csio_lnode_init(ln, hw, pln)) | |
652 | goto err_shost_put; | |
653 | ||
654 | if (scsi_add_host(shost, dev)) | |
655 | goto err_lnode_exit; | |
656 | ||
657 | return ln; | |
658 | ||
659 | err_lnode_exit: | |
660 | csio_lnode_exit(ln); | |
661 | err_shost_put: | |
662 | scsi_host_put(shost); | |
663 | err: | |
664 | return NULL; | |
665 | } | |
666 | ||
667 | /** | |
668 | * csio_shost_exit - De-instantiate the shost. | |
669 | * @ln: The lnode module corresponding to the shost. | |
670 | * | |
671 | */ | |
672 | void | |
673 | csio_shost_exit(struct csio_lnode *ln) | |
674 | { | |
675 | struct Scsi_Host *shost = csio_ln_to_shost(ln); | |
676 | struct csio_hw *hw = csio_lnode_to_hw(ln); | |
677 | ||
678 | /* Inform transport */ | |
679 | fc_remove_host(shost); | |
680 | ||
681 | /* Inform SCSI ML */ | |
682 | scsi_remove_host(shost); | |
683 | ||
684 | /* Flush all the events, so that any rnode removal events | |
685 | * already queued are all handled, before we remove the lnode. | |
686 | */ | |
687 | spin_lock_irq(&hw->lock); | |
688 | csio_evtq_flush(hw); | |
689 | spin_unlock_irq(&hw->lock); | |
690 | ||
691 | csio_lnode_exit(ln); | |
692 | scsi_host_put(shost); | |
693 | } | |
694 | ||
695 | struct csio_lnode * | |
696 | csio_lnode_alloc(struct csio_hw *hw) | |
697 | { | |
698 | return csio_shost_init(hw, &hw->pdev->dev, false, NULL); | |
699 | } | |
700 | ||
701 | void | |
702 | csio_lnodes_block_request(struct csio_hw *hw) | |
703 | { | |
704 | struct Scsi_Host *shost; | |
705 | struct csio_lnode *sln; | |
706 | struct csio_lnode *ln; | |
707 | struct list_head *cur_ln, *cur_cln; | |
708 | struct csio_lnode **lnode_list; | |
709 | int cur_cnt = 0, ii; | |
710 | ||
711 | lnode_list = kzalloc((sizeof(struct csio_lnode *) * hw->num_lns), | |
712 | GFP_KERNEL); | |
713 | if (!lnode_list) { | |
714 | csio_err(hw, "Failed to allocate lnodes_list"); | |
715 | return; | |
716 | } | |
717 | ||
718 | spin_lock_irq(&hw->lock); | |
719 | /* Traverse sibling lnodes */ | |
720 | list_for_each(cur_ln, &hw->sln_head) { | |
721 | sln = (struct csio_lnode *) cur_ln; | |
722 | lnode_list[cur_cnt++] = sln; | |
723 | ||
724 | /* Traverse children lnodes */ | |
725 | list_for_each(cur_cln, &sln->cln_head) | |
726 | lnode_list[cur_cnt++] = (struct csio_lnode *) cur_cln; | |
727 | } | |
728 | spin_unlock_irq(&hw->lock); | |
729 | ||
730 | for (ii = 0; ii < cur_cnt; ii++) { | |
731 | csio_dbg(hw, "Blocking IOs on lnode: %p\n", lnode_list[ii]); | |
732 | ln = lnode_list[ii]; | |
733 | shost = csio_ln_to_shost(ln); | |
734 | scsi_block_requests(shost); | |
735 | ||
736 | } | |
737 | kfree(lnode_list); | |
738 | } | |
739 | ||
740 | void | |
741 | csio_lnodes_unblock_request(struct csio_hw *hw) | |
742 | { | |
743 | struct csio_lnode *ln; | |
744 | struct Scsi_Host *shost; | |
745 | struct csio_lnode *sln; | |
746 | struct list_head *cur_ln, *cur_cln; | |
747 | struct csio_lnode **lnode_list; | |
748 | int cur_cnt = 0, ii; | |
749 | ||
750 | lnode_list = kzalloc((sizeof(struct csio_lnode *) * hw->num_lns), | |
751 | GFP_KERNEL); | |
752 | if (!lnode_list) { | |
753 | csio_err(hw, "Failed to allocate lnodes_list"); | |
754 | return; | |
755 | } | |
756 | ||
757 | spin_lock_irq(&hw->lock); | |
758 | /* Traverse sibling lnodes */ | |
759 | list_for_each(cur_ln, &hw->sln_head) { | |
760 | sln = (struct csio_lnode *) cur_ln; | |
761 | lnode_list[cur_cnt++] = sln; | |
762 | ||
763 | /* Traverse children lnodes */ | |
764 | list_for_each(cur_cln, &sln->cln_head) | |
765 | lnode_list[cur_cnt++] = (struct csio_lnode *) cur_cln; | |
766 | } | |
767 | spin_unlock_irq(&hw->lock); | |
768 | ||
769 | for (ii = 0; ii < cur_cnt; ii++) { | |
770 | csio_dbg(hw, "unblocking IOs on lnode: %p\n", lnode_list[ii]); | |
771 | ln = lnode_list[ii]; | |
772 | shost = csio_ln_to_shost(ln); | |
773 | scsi_unblock_requests(shost); | |
774 | } | |
775 | kfree(lnode_list); | |
776 | } | |
777 | ||
778 | void | |
779 | csio_lnodes_block_by_port(struct csio_hw *hw, uint8_t portid) | |
780 | { | |
781 | struct csio_lnode *ln; | |
782 | struct Scsi_Host *shost; | |
783 | struct csio_lnode *sln; | |
784 | struct list_head *cur_ln, *cur_cln; | |
785 | struct csio_lnode **lnode_list; | |
786 | int cur_cnt = 0, ii; | |
787 | ||
788 | lnode_list = kzalloc((sizeof(struct csio_lnode *) * hw->num_lns), | |
789 | GFP_KERNEL); | |
790 | if (!lnode_list) { | |
791 | csio_err(hw, "Failed to allocate lnodes_list"); | |
792 | return; | |
793 | } | |
794 | ||
795 | spin_lock_irq(&hw->lock); | |
796 | /* Traverse sibling lnodes */ | |
797 | list_for_each(cur_ln, &hw->sln_head) { | |
798 | sln = (struct csio_lnode *) cur_ln; | |
799 | if (sln->portid != portid) | |
800 | continue; | |
801 | ||
802 | lnode_list[cur_cnt++] = sln; | |
803 | ||
804 | /* Traverse children lnodes */ | |
805 | list_for_each(cur_cln, &sln->cln_head) | |
806 | lnode_list[cur_cnt++] = (struct csio_lnode *) cur_cln; | |
807 | } | |
808 | spin_unlock_irq(&hw->lock); | |
809 | ||
810 | for (ii = 0; ii < cur_cnt; ii++) { | |
811 | csio_dbg(hw, "Blocking IOs on lnode: %p\n", lnode_list[ii]); | |
812 | ln = lnode_list[ii]; | |
813 | shost = csio_ln_to_shost(ln); | |
814 | scsi_block_requests(shost); | |
815 | } | |
816 | kfree(lnode_list); | |
817 | } | |
818 | ||
819 | void | |
820 | csio_lnodes_unblock_by_port(struct csio_hw *hw, uint8_t portid) | |
821 | { | |
822 | struct csio_lnode *ln; | |
823 | struct Scsi_Host *shost; | |
824 | struct csio_lnode *sln; | |
825 | struct list_head *cur_ln, *cur_cln; | |
826 | struct csio_lnode **lnode_list; | |
827 | int cur_cnt = 0, ii; | |
828 | ||
829 | lnode_list = kzalloc((sizeof(struct csio_lnode *) * hw->num_lns), | |
830 | GFP_KERNEL); | |
831 | if (!lnode_list) { | |
832 | csio_err(hw, "Failed to allocate lnodes_list"); | |
833 | return; | |
834 | } | |
835 | ||
836 | spin_lock_irq(&hw->lock); | |
837 | /* Traverse sibling lnodes */ | |
838 | list_for_each(cur_ln, &hw->sln_head) { | |
839 | sln = (struct csio_lnode *) cur_ln; | |
840 | if (sln->portid != portid) | |
841 | continue; | |
842 | lnode_list[cur_cnt++] = sln; | |
843 | ||
844 | /* Traverse children lnodes */ | |
845 | list_for_each(cur_cln, &sln->cln_head) | |
846 | lnode_list[cur_cnt++] = (struct csio_lnode *) cur_cln; | |
847 | } | |
848 | spin_unlock_irq(&hw->lock); | |
849 | ||
850 | for (ii = 0; ii < cur_cnt; ii++) { | |
851 | csio_dbg(hw, "unblocking IOs on lnode: %p\n", lnode_list[ii]); | |
852 | ln = lnode_list[ii]; | |
853 | shost = csio_ln_to_shost(ln); | |
854 | scsi_unblock_requests(shost); | |
855 | } | |
856 | kfree(lnode_list); | |
857 | } | |
858 | ||
859 | void | |
860 | csio_lnodes_exit(struct csio_hw *hw, bool npiv) | |
861 | { | |
862 | struct csio_lnode *sln; | |
863 | struct csio_lnode *ln; | |
864 | struct list_head *cur_ln, *cur_cln; | |
865 | struct csio_lnode **lnode_list; | |
866 | int cur_cnt = 0, ii; | |
867 | ||
868 | lnode_list = kzalloc((sizeof(struct csio_lnode *) * hw->num_lns), | |
869 | GFP_KERNEL); | |
870 | if (!lnode_list) { | |
871 | csio_err(hw, "lnodes_exit: Failed to allocate lnodes_list.\n"); | |
872 | return; | |
873 | } | |
874 | ||
875 | /* Get all child lnodes(NPIV ports) */ | |
876 | spin_lock_irq(&hw->lock); | |
877 | list_for_each(cur_ln, &hw->sln_head) { | |
878 | sln = (struct csio_lnode *) cur_ln; | |
879 | ||
880 | /* Traverse children lnodes */ | |
881 | list_for_each(cur_cln, &sln->cln_head) | |
882 | lnode_list[cur_cnt++] = (struct csio_lnode *) cur_cln; | |
883 | } | |
884 | spin_unlock_irq(&hw->lock); | |
885 | ||
886 | /* Delete NPIV lnodes */ | |
887 | for (ii = 0; ii < cur_cnt; ii++) { | |
888 | csio_dbg(hw, "Deleting child lnode: %p\n", lnode_list[ii]); | |
889 | ln = lnode_list[ii]; | |
890 | fc_vport_terminate(ln->fc_vport); | |
891 | } | |
892 | ||
893 | /* Delete only npiv lnodes */ | |
894 | if (npiv) | |
895 | goto free_lnodes; | |
896 | ||
897 | cur_cnt = 0; | |
898 | /* Get all physical lnodes */ | |
899 | spin_lock_irq(&hw->lock); | |
900 | /* Traverse sibling lnodes */ | |
901 | list_for_each(cur_ln, &hw->sln_head) { | |
902 | sln = (struct csio_lnode *) cur_ln; | |
903 | lnode_list[cur_cnt++] = sln; | |
904 | } | |
905 | spin_unlock_irq(&hw->lock); | |
906 | ||
907 | /* Delete physical lnodes */ | |
908 | for (ii = 0; ii < cur_cnt; ii++) { | |
909 | csio_dbg(hw, "Deleting parent lnode: %p\n", lnode_list[ii]); | |
910 | csio_shost_exit(lnode_list[ii]); | |
911 | } | |
912 | ||
913 | free_lnodes: | |
914 | kfree(lnode_list); | |
915 | } | |
916 | ||
917 | /* | |
918 | * csio_lnode_init_post: Set lnode attributes after starting HW. | |
919 | * @ln: lnode. | |
920 | * | |
921 | */ | |
922 | static void | |
923 | csio_lnode_init_post(struct csio_lnode *ln) | |
924 | { | |
925 | struct Scsi_Host *shost = csio_ln_to_shost(ln); | |
926 | ||
927 | csio_fchost_attr_init(ln); | |
928 | ||
929 | scsi_scan_host(shost); | |
930 | } | |
931 | ||
932 | /* | |
933 | * csio_probe_one - Instantiate this function. | |
934 | * @pdev: PCI device | |
935 | * @id: Device ID | |
936 | * | |
937 | * This is the .probe() callback of the driver. This function: | |
938 | * - Initializes the PCI function by enabling MMIO, setting bus | |
939 | * mastership and setting DMA mask. | |
940 | * - Allocates HW structure, DMA, memory resources, maps BARS to | |
941 | * host memory and initializes HW module. | |
942 | * - Allocates lnode structure via scsi_host_alloc, initializes | |
943 | * shost, initialized lnode module and registers with SCSI ML | |
944 | * via scsi_host_add. | |
945 | * - Enables interrupts, and starts the chip by kicking off the | |
946 | * HW state machine. | |
947 | * - Once hardware is ready, initiated scan of the host via | |
948 | * scsi_scan_host. | |
949 | */ | |
6f039790 | 950 | static int csio_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) |
a3667aae NKI |
951 | { |
952 | int rv; | |
953 | int bars; | |
954 | int i; | |
955 | struct csio_hw *hw; | |
956 | struct csio_lnode *ln; | |
957 | ||
958 | rv = csio_pci_init(pdev, &bars); | |
959 | if (rv) | |
960 | goto err; | |
961 | ||
962 | hw = csio_hw_alloc(pdev); | |
963 | if (!hw) { | |
964 | rv = -ENODEV; | |
965 | goto err_pci_exit; | |
966 | } | |
967 | ||
968 | pci_set_drvdata(pdev, hw); | |
969 | ||
970 | if (csio_hw_start(hw) != 0) { | |
971 | dev_err(&pdev->dev, | |
972 | "Failed to start FW, continuing in debug mode.\n"); | |
973 | return 0; | |
974 | } | |
975 | ||
976 | sprintf(hw->fwrev_str, "%u.%u.%u.%u\n", | |
977 | FW_HDR_FW_VER_MAJOR_GET(hw->fwrev), | |
978 | FW_HDR_FW_VER_MINOR_GET(hw->fwrev), | |
979 | FW_HDR_FW_VER_MICRO_GET(hw->fwrev), | |
980 | FW_HDR_FW_VER_BUILD_GET(hw->fwrev)); | |
981 | ||
982 | for (i = 0; i < hw->num_pports; i++) { | |
983 | ln = csio_shost_init(hw, &pdev->dev, true, NULL); | |
984 | if (!ln) { | |
985 | rv = -ENODEV; | |
986 | break; | |
987 | } | |
988 | /* Initialize portid */ | |
989 | ln->portid = hw->pport[i].portid; | |
990 | ||
991 | spin_lock_irq(&hw->lock); | |
992 | if (csio_lnode_start(ln) != 0) | |
993 | rv = -ENODEV; | |
994 | spin_unlock_irq(&hw->lock); | |
995 | ||
996 | if (rv) | |
997 | break; | |
998 | ||
999 | csio_lnode_init_post(ln); | |
1000 | } | |
1001 | ||
1002 | if (rv) | |
1003 | goto err_lnode_exit; | |
1004 | ||
1005 | return 0; | |
1006 | ||
1007 | err_lnode_exit: | |
1008 | csio_lnodes_block_request(hw); | |
1009 | spin_lock_irq(&hw->lock); | |
1010 | csio_hw_stop(hw); | |
1011 | spin_unlock_irq(&hw->lock); | |
1012 | csio_lnodes_unblock_request(hw); | |
a3667aae NKI |
1013 | csio_lnodes_exit(hw, 0); |
1014 | csio_hw_free(hw); | |
1015 | err_pci_exit: | |
1016 | csio_pci_exit(pdev, &bars); | |
1017 | err: | |
1018 | dev_err(&pdev->dev, "probe of device failed: %d\n", rv); | |
1019 | return rv; | |
1020 | } | |
1021 | ||
1022 | /* | |
1023 | * csio_remove_one - Remove one instance of the driver at this PCI function. | |
1024 | * @pdev: PCI device | |
1025 | * | |
1026 | * Used during hotplug operation. | |
1027 | */ | |
6f039790 | 1028 | static void csio_remove_one(struct pci_dev *pdev) |
a3667aae NKI |
1029 | { |
1030 | struct csio_hw *hw = pci_get_drvdata(pdev); | |
1031 | int bars = pci_select_bars(pdev, IORESOURCE_MEM); | |
1032 | ||
1033 | csio_lnodes_block_request(hw); | |
1034 | spin_lock_irq(&hw->lock); | |
1035 | ||
1036 | /* Stops lnode, Rnode s/m | |
1037 | * Quiesce IOs. | |
1038 | * All sessions with remote ports are unregistered. | |
1039 | */ | |
1040 | csio_hw_stop(hw); | |
1041 | spin_unlock_irq(&hw->lock); | |
1042 | csio_lnodes_unblock_request(hw); | |
1043 | ||
1044 | csio_lnodes_exit(hw, 0); | |
1045 | csio_hw_free(hw); | |
a3667aae NKI |
1046 | csio_pci_exit(pdev, &bars); |
1047 | } | |
1048 | ||
1049 | /* | |
1050 | * csio_pci_error_detected - PCI error was detected | |
1051 | * @pdev: PCI device | |
1052 | * | |
1053 | */ | |
1054 | static pci_ers_result_t | |
1055 | csio_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state) | |
1056 | { | |
1057 | struct csio_hw *hw = pci_get_drvdata(pdev); | |
1058 | ||
1059 | csio_lnodes_block_request(hw); | |
1060 | spin_lock_irq(&hw->lock); | |
1061 | ||
1062 | /* Post PCI error detected evt to HW s/m | |
1063 | * HW s/m handles this evt by quiescing IOs, unregisters rports | |
1064 | * and finally takes the device to offline. | |
1065 | */ | |
1066 | csio_post_event(&hw->sm, CSIO_HWE_PCIERR_DETECTED); | |
1067 | spin_unlock_irq(&hw->lock); | |
1068 | csio_lnodes_unblock_request(hw); | |
1069 | csio_lnodes_exit(hw, 0); | |
1070 | csio_intr_disable(hw, true); | |
1071 | pci_disable_device(pdev); | |
1072 | return state == pci_channel_io_perm_failure ? | |
1073 | PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_NEED_RESET; | |
1074 | } | |
1075 | ||
1076 | /* | |
1077 | * csio_pci_slot_reset - PCI slot has been reset. | |
1078 | * @pdev: PCI device | |
1079 | * | |
1080 | */ | |
1081 | static pci_ers_result_t | |
1082 | csio_pci_slot_reset(struct pci_dev *pdev) | |
1083 | { | |
1084 | struct csio_hw *hw = pci_get_drvdata(pdev); | |
1085 | int ready; | |
1086 | ||
1087 | if (pci_enable_device(pdev)) { | |
1088 | dev_err(&pdev->dev, "cannot re-enable device in slot reset\n"); | |
1089 | return PCI_ERS_RESULT_DISCONNECT; | |
1090 | } | |
1091 | ||
1092 | pci_set_master(pdev); | |
1093 | pci_restore_state(pdev); | |
1094 | pci_save_state(pdev); | |
1095 | pci_cleanup_aer_uncorrect_error_status(pdev); | |
1096 | ||
1097 | /* Bring HW s/m to ready state. | |
1098 | * but don't resume IOs. | |
1099 | */ | |
1100 | spin_lock_irq(&hw->lock); | |
1101 | csio_post_event(&hw->sm, CSIO_HWE_PCIERR_SLOT_RESET); | |
1102 | ready = csio_is_hw_ready(hw); | |
1103 | spin_unlock_irq(&hw->lock); | |
1104 | ||
1105 | if (ready) { | |
1106 | return PCI_ERS_RESULT_RECOVERED; | |
1107 | } else { | |
1108 | dev_err(&pdev->dev, "Can't initialize HW when in slot reset\n"); | |
1109 | return PCI_ERS_RESULT_DISCONNECT; | |
1110 | } | |
1111 | } | |
1112 | ||
1113 | /* | |
1114 | * csio_pci_resume - Resume normal operations | |
1115 | * @pdev: PCI device | |
1116 | * | |
1117 | */ | |
1118 | static void | |
1119 | csio_pci_resume(struct pci_dev *pdev) | |
1120 | { | |
1121 | struct csio_hw *hw = pci_get_drvdata(pdev); | |
1122 | struct csio_lnode *ln; | |
1123 | int rv = 0; | |
1124 | int i; | |
1125 | ||
1126 | /* Bring the LINK UP and Resume IO */ | |
1127 | ||
1128 | for (i = 0; i < hw->num_pports; i++) { | |
1129 | ln = csio_shost_init(hw, &pdev->dev, true, NULL); | |
1130 | if (!ln) { | |
1131 | rv = -ENODEV; | |
1132 | break; | |
1133 | } | |
1134 | /* Initialize portid */ | |
1135 | ln->portid = hw->pport[i].portid; | |
1136 | ||
1137 | spin_lock_irq(&hw->lock); | |
1138 | if (csio_lnode_start(ln) != 0) | |
1139 | rv = -ENODEV; | |
1140 | spin_unlock_irq(&hw->lock); | |
1141 | ||
1142 | if (rv) | |
1143 | break; | |
1144 | ||
1145 | csio_lnode_init_post(ln); | |
1146 | } | |
1147 | ||
1148 | if (rv) | |
1149 | goto err_resume_exit; | |
1150 | ||
1151 | return; | |
1152 | ||
1153 | err_resume_exit: | |
1154 | csio_lnodes_block_request(hw); | |
1155 | spin_lock_irq(&hw->lock); | |
1156 | csio_hw_stop(hw); | |
1157 | spin_unlock_irq(&hw->lock); | |
1158 | csio_lnodes_unblock_request(hw); | |
1159 | csio_lnodes_exit(hw, 0); | |
1160 | csio_hw_free(hw); | |
1161 | dev_err(&pdev->dev, "resume of device failed: %d\n", rv); | |
1162 | } | |
1163 | ||
1164 | static struct pci_error_handlers csio_err_handler = { | |
1165 | .error_detected = csio_pci_error_detected, | |
1166 | .slot_reset = csio_pci_slot_reset, | |
1167 | .resume = csio_pci_resume, | |
1168 | }; | |
1169 | ||
1170 | static DEFINE_PCI_DEVICE_TABLE(csio_pci_tbl) = { | |
7cc16380 | 1171 | CSIO_DEVICE(CSIO_DEVID_T440DBG_FCOE, 0), /* T4 DEBUG FCOE */ |
a3667aae NKI |
1172 | CSIO_DEVICE(CSIO_DEVID_T420CR_FCOE, 0), /* T420CR FCOE */ |
1173 | CSIO_DEVICE(CSIO_DEVID_T422CR_FCOE, 0), /* T422CR FCOE */ | |
1174 | CSIO_DEVICE(CSIO_DEVID_T440CR_FCOE, 0), /* T440CR FCOE */ | |
1175 | CSIO_DEVICE(CSIO_DEVID_T420BCH_FCOE, 0), /* T420BCH FCOE */ | |
1176 | CSIO_DEVICE(CSIO_DEVID_T440BCH_FCOE, 0), /* T440BCH FCOE */ | |
1177 | CSIO_DEVICE(CSIO_DEVID_T440CH_FCOE, 0), /* T440CH FCOE */ | |
1178 | CSIO_DEVICE(CSIO_DEVID_T420SO_FCOE, 0), /* T420SO FCOE */ | |
1179 | CSIO_DEVICE(CSIO_DEVID_T420CX_FCOE, 0), /* T420CX FCOE */ | |
1180 | CSIO_DEVICE(CSIO_DEVID_T420BT_FCOE, 0), /* T420BT FCOE */ | |
1181 | CSIO_DEVICE(CSIO_DEVID_T404BT_FCOE, 0), /* T404BT FCOE */ | |
1182 | CSIO_DEVICE(CSIO_DEVID_B420_FCOE, 0), /* B420 FCOE */ | |
1183 | CSIO_DEVICE(CSIO_DEVID_B404_FCOE, 0), /* B404 FCOE */ | |
1184 | CSIO_DEVICE(CSIO_DEVID_T480CR_FCOE, 0), /* T480 CR FCOE */ | |
1185 | CSIO_DEVICE(CSIO_DEVID_T440LPCR_FCOE, 0), /* T440 LP-CR FCOE */ | |
7cc16380 AB |
1186 | CSIO_DEVICE(CSIO_DEVID_AMSTERDAM_T4_FCOE, 0), /* AMSTERDAM T4 FCOE */ |
1187 | CSIO_DEVICE(CSIO_DEVID_HUAWEI_T480_FCOE, 0), /* HUAWEI T480 FCOE */ | |
1188 | CSIO_DEVICE(CSIO_DEVID_HUAWEI_T440_FCOE, 0), /* HUAWEI T440 FCOE */ | |
1189 | CSIO_DEVICE(CSIO_DEVID_HUAWEI_STG310_FCOE, 0), /* HUAWEI STG FCOE */ | |
1190 | CSIO_DEVICE(CSIO_DEVID_ACROMAG_XMC_XAUI, 0), /* ACROMAG XAUI FCOE */ | |
1191 | CSIO_DEVICE(CSIO_DEVID_QUANTA_MEZZ_SFP_FCOE, 0),/* QUANTA MEZZ FCOE */ | |
1192 | CSIO_DEVICE(CSIO_DEVID_HUAWEI_10GT_FCOE, 0), /* HUAWEI 10GT FCOE */ | |
1193 | CSIO_DEVICE(CSIO_DEVID_HUAWEI_T440_TOE_FCOE, 0),/* HUAWEI T4 TOE FCOE */ | |
1194 | CSIO_DEVICE(CSIO_DEVID_T580DBG_FCOE, 0), /* T5 DEBUG FCOE */ | |
1195 | CSIO_DEVICE(CSIO_DEVID_T520CR_FCOE, 0), /* T520CR FCOE */ | |
1196 | CSIO_DEVICE(CSIO_DEVID_T522CR_FCOE, 0), /* T522CR FCOE */ | |
1197 | CSIO_DEVICE(CSIO_DEVID_T540CR_FCOE, 0), /* T540CR FCOE */ | |
1198 | CSIO_DEVICE(CSIO_DEVID_T520BCH_FCOE, 0), /* T520BCH FCOE */ | |
1199 | CSIO_DEVICE(CSIO_DEVID_T540BCH_FCOE, 0), /* T540BCH FCOE */ | |
1200 | CSIO_DEVICE(CSIO_DEVID_T540CH_FCOE, 0), /* T540CH FCOE */ | |
1201 | CSIO_DEVICE(CSIO_DEVID_T520SO_FCOE, 0), /* T520SO FCOE */ | |
1202 | CSIO_DEVICE(CSIO_DEVID_T520CX_FCOE, 0), /* T520CX FCOE */ | |
1203 | CSIO_DEVICE(CSIO_DEVID_T520BT_FCOE, 0), /* T520BT FCOE */ | |
1204 | CSIO_DEVICE(CSIO_DEVID_T504BT_FCOE, 0), /* T504BT FCOE */ | |
1205 | CSIO_DEVICE(CSIO_DEVID_B520_FCOE, 0), /* B520 FCOE */ | |
1206 | CSIO_DEVICE(CSIO_DEVID_B504_FCOE, 0), /* B504 FCOE */ | |
1207 | CSIO_DEVICE(CSIO_DEVID_T580CR2_FCOE, 0), /* T580 CR FCOE */ | |
1208 | CSIO_DEVICE(CSIO_DEVID_T540LPCR_FCOE, 0), /* T540 LP-CR FCOE */ | |
1209 | CSIO_DEVICE(CSIO_DEVID_AMSTERDAM_T5_FCOE, 0), /* AMSTERDAM T5 FCOE */ | |
1210 | CSIO_DEVICE(CSIO_DEVID_T580LPCR_FCOE, 0), /* T580 LP-CR FCOE */ | |
1211 | CSIO_DEVICE(CSIO_DEVID_T520LLCR_FCOE, 0), /* T520 LL-CR FCOE */ | |
1212 | CSIO_DEVICE(CSIO_DEVID_T560CR_FCOE, 0), /* T560 CR FCOE */ | |
1213 | CSIO_DEVICE(CSIO_DEVID_T580CR_FCOE, 0), /* T580 CR FCOE */ | |
a3667aae NKI |
1214 | { 0, 0, 0, 0, 0, 0, 0 } |
1215 | }; | |
1216 | ||
1217 | ||
1218 | static struct pci_driver csio_pci_driver = { | |
1219 | .name = KBUILD_MODNAME, | |
1220 | .driver = { | |
1221 | .owner = THIS_MODULE, | |
1222 | }, | |
1223 | .id_table = csio_pci_tbl, | |
1224 | .probe = csio_probe_one, | |
1225 | .remove = csio_remove_one, | |
1226 | .err_handler = &csio_err_handler, | |
1227 | }; | |
1228 | ||
1229 | /* | |
1230 | * csio_init - Chelsio storage driver initialization function. | |
1231 | * | |
1232 | */ | |
1233 | static int __init | |
1234 | csio_init(void) | |
1235 | { | |
1236 | int rv = -ENOMEM; | |
1237 | ||
1238 | pr_info("%s %s\n", CSIO_DRV_DESC, CSIO_DRV_VERSION); | |
1239 | ||
1240 | csio_dfs_init(); | |
1241 | ||
1242 | csio_fcoe_transport = fc_attach_transport(&csio_fc_transport_funcs); | |
1243 | if (!csio_fcoe_transport) | |
1244 | goto err; | |
1245 | ||
1246 | csio_fcoe_transport_vport = | |
1247 | fc_attach_transport(&csio_fc_transport_vport_funcs); | |
1248 | if (!csio_fcoe_transport_vport) | |
1249 | goto err_vport; | |
1250 | ||
1251 | rv = pci_register_driver(&csio_pci_driver); | |
1252 | if (rv) | |
1253 | goto err_pci; | |
1254 | ||
1255 | return 0; | |
1256 | ||
1257 | err_pci: | |
1258 | fc_release_transport(csio_fcoe_transport_vport); | |
1259 | err_vport: | |
1260 | fc_release_transport(csio_fcoe_transport); | |
1261 | err: | |
1262 | csio_dfs_exit(); | |
1263 | return rv; | |
1264 | } | |
1265 | ||
1266 | /* | |
1267 | * csio_exit - Chelsio storage driver uninitialization . | |
1268 | * | |
1269 | * Function that gets called in the unload path. | |
1270 | */ | |
1271 | static void __exit | |
1272 | csio_exit(void) | |
1273 | { | |
1274 | pci_unregister_driver(&csio_pci_driver); | |
1275 | csio_dfs_exit(); | |
1276 | fc_release_transport(csio_fcoe_transport_vport); | |
1277 | fc_release_transport(csio_fcoe_transport); | |
1278 | } | |
1279 | ||
1280 | module_init(csio_init); | |
1281 | module_exit(csio_exit); | |
1282 | MODULE_AUTHOR(CSIO_DRV_AUTHOR); | |
1283 | MODULE_DESCRIPTION(CSIO_DRV_DESC); | |
1284 | MODULE_LICENSE(CSIO_DRV_LICENSE); | |
1285 | MODULE_DEVICE_TABLE(pci, csio_pci_tbl); | |
1286 | MODULE_VERSION(CSIO_DRV_VERSION); | |
7cc16380 AB |
1287 | MODULE_FIRMWARE(FW_FNAME_T4); |
1288 | MODULE_FIRMWARE(FW_FNAME_T5); |