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9c915a8c AR |
1 | /* |
2 | * Linux MegaRAID driver for SAS based RAID controllers | |
3 | * | |
ae59057b | 4 | * Copyright (c) 2009-2012 LSI Corporation. |
9c915a8c AR |
5 | * |
6 | * This program is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU General Public License | |
8 | * as published by the Free Software Foundation; either version 2 | |
9 | * of the License, or (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
19 | * | |
20 | * FILE: megaraid_sas_fusion.c | |
21 | * | |
22 | * Authors: LSI Corporation | |
23 | * Sumant Patro | |
24 | * Adam Radford <linuxraid@lsi.com> | |
25 | * | |
26 | * Send feedback to: <megaraidlinux@lsi.com> | |
27 | * | |
28 | * Mail to: LSI Corporation, 1621 Barber Lane, Milpitas, CA 95035 | |
29 | * ATTN: Linuxraid | |
30 | */ | |
31 | ||
32 | #include <linux/kernel.h> | |
33 | #include <linux/types.h> | |
34 | #include <linux/pci.h> | |
35 | #include <linux/list.h> | |
36 | #include <linux/moduleparam.h> | |
37 | #include <linux/module.h> | |
38 | #include <linux/spinlock.h> | |
39 | #include <linux/interrupt.h> | |
40 | #include <linux/delay.h> | |
9c915a8c AR |
41 | #include <linux/uio.h> |
42 | #include <linux/uaccess.h> | |
43 | #include <linux/fs.h> | |
44 | #include <linux/compat.h> | |
45 | #include <linux/blkdev.h> | |
46 | #include <linux/mutex.h> | |
47 | #include <linux/poll.h> | |
48 | ||
49 | #include <scsi/scsi.h> | |
50 | #include <scsi/scsi_cmnd.h> | |
51 | #include <scsi/scsi_device.h> | |
52 | #include <scsi/scsi_host.h> | |
53 | ||
54 | #include "megaraid_sas_fusion.h" | |
55 | #include "megaraid_sas.h" | |
56 | ||
57 | extern void megasas_free_cmds(struct megasas_instance *instance); | |
58 | extern struct megasas_cmd *megasas_get_cmd(struct megasas_instance | |
59 | *instance); | |
60 | extern void | |
61 | megasas_complete_cmd(struct megasas_instance *instance, | |
62 | struct megasas_cmd *cmd, u8 alt_status); | |
63 | int megasas_is_ldio(struct scsi_cmnd *cmd); | |
64 | int | |
65 | wait_and_poll(struct megasas_instance *instance, struct megasas_cmd *cmd); | |
66 | ||
67 | void | |
68 | megasas_return_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd); | |
69 | int megasas_alloc_cmds(struct megasas_instance *instance); | |
70 | int | |
71 | megasas_clear_intr_fusion(struct megasas_register_set __iomem *regs); | |
72 | int | |
73 | megasas_issue_polled(struct megasas_instance *instance, | |
74 | struct megasas_cmd *cmd); | |
53ef2bbd AR |
75 | void |
76 | megasas_check_and_restore_queue_depth(struct megasas_instance *instance); | |
77 | ||
9c915a8c AR |
78 | u16 get_updated_dev_handle(struct LD_LOAD_BALANCE_INFO *lbInfo, |
79 | struct IO_REQUEST_INFO *in_info); | |
058a8fac | 80 | int megasas_transition_to_ready(struct megasas_instance *instance, int ocr); |
9c915a8c AR |
81 | void megaraid_sas_kill_hba(struct megasas_instance *instance); |
82 | ||
83 | extern u32 megasas_dbg_lvl; | |
c007b8b2 | 84 | extern int resetwaittime; |
9c915a8c AR |
85 | |
86 | /** | |
87 | * megasas_enable_intr_fusion - Enables interrupts | |
88 | * @regs: MFI register set | |
89 | */ | |
90 | void | |
d46a3ad6 | 91 | megasas_enable_intr_fusion(struct megasas_instance *instance) |
9c915a8c | 92 | { |
d46a3ad6 SS |
93 | struct megasas_register_set __iomem *regs; |
94 | regs = instance->reg_set; | |
6497b247 AR |
95 | /* For Thunderbolt/Invader also clear intr on enable */ |
96 | writel(~0, ®s->outbound_intr_status); | |
97 | readl(®s->outbound_intr_status); | |
98 | ||
9c915a8c AR |
99 | writel(~MFI_FUSION_ENABLE_INTERRUPT_MASK, &(regs)->outbound_intr_mask); |
100 | ||
101 | /* Dummy readl to force pci flush */ | |
102 | readl(®s->outbound_intr_mask); | |
d46a3ad6 | 103 | instance->mask_interrupts = 0; |
9c915a8c AR |
104 | } |
105 | ||
106 | /** | |
107 | * megasas_disable_intr_fusion - Disables interrupt | |
108 | * @regs: MFI register set | |
109 | */ | |
110 | void | |
d46a3ad6 | 111 | megasas_disable_intr_fusion(struct megasas_instance *instance) |
9c915a8c AR |
112 | { |
113 | u32 mask = 0xFFFFFFFF; | |
114 | u32 status; | |
d46a3ad6 SS |
115 | struct megasas_register_set __iomem *regs; |
116 | regs = instance->reg_set; | |
117 | instance->mask_interrupts = 1; | |
9c915a8c AR |
118 | |
119 | writel(mask, ®s->outbound_intr_mask); | |
120 | /* Dummy readl to force pci flush */ | |
121 | status = readl(®s->outbound_intr_mask); | |
122 | } | |
123 | ||
124 | int | |
125 | megasas_clear_intr_fusion(struct megasas_register_set __iomem *regs) | |
126 | { | |
127 | u32 status; | |
128 | /* | |
129 | * Check if it is our interrupt | |
130 | */ | |
131 | status = readl(®s->outbound_intr_status); | |
132 | ||
133 | if (status & 1) { | |
134 | writel(status, ®s->outbound_intr_status); | |
135 | readl(®s->outbound_intr_status); | |
136 | return 1; | |
137 | } | |
138 | if (!(status & MFI_FUSION_ENABLE_INTERRUPT_MASK)) | |
139 | return 0; | |
140 | ||
9c915a8c AR |
141 | return 1; |
142 | } | |
143 | ||
144 | /** | |
145 | * megasas_get_cmd_fusion - Get a command from the free pool | |
146 | * @instance: Adapter soft state | |
147 | * | |
148 | * Returns a free command from the pool | |
149 | */ | |
150 | struct megasas_cmd_fusion *megasas_get_cmd_fusion(struct megasas_instance | |
151 | *instance) | |
152 | { | |
153 | unsigned long flags; | |
154 | struct fusion_context *fusion = | |
155 | (struct fusion_context *)instance->ctrl_context; | |
156 | struct megasas_cmd_fusion *cmd = NULL; | |
157 | ||
158 | spin_lock_irqsave(&fusion->cmd_pool_lock, flags); | |
159 | ||
160 | if (!list_empty(&fusion->cmd_pool)) { | |
161 | cmd = list_entry((&fusion->cmd_pool)->next, | |
162 | struct megasas_cmd_fusion, list); | |
163 | list_del_init(&cmd->list); | |
164 | } else { | |
165 | printk(KERN_ERR "megasas: Command pool (fusion) empty!\n"); | |
166 | } | |
167 | ||
168 | spin_unlock_irqrestore(&fusion->cmd_pool_lock, flags); | |
169 | return cmd; | |
170 | } | |
171 | ||
172 | /** | |
173 | * megasas_return_cmd_fusion - Return a cmd to free command pool | |
174 | * @instance: Adapter soft state | |
175 | * @cmd: Command packet to be returned to free command pool | |
176 | */ | |
177 | static inline void | |
178 | megasas_return_cmd_fusion(struct megasas_instance *instance, | |
179 | struct megasas_cmd_fusion *cmd) | |
180 | { | |
181 | unsigned long flags; | |
182 | struct fusion_context *fusion = | |
183 | (struct fusion_context *)instance->ctrl_context; | |
184 | ||
185 | spin_lock_irqsave(&fusion->cmd_pool_lock, flags); | |
186 | ||
187 | cmd->scmd = NULL; | |
188 | cmd->sync_cmd_idx = (u32)ULONG_MAX; | |
189 | list_add_tail(&cmd->list, &fusion->cmd_pool); | |
190 | ||
191 | spin_unlock_irqrestore(&fusion->cmd_pool_lock, flags); | |
192 | } | |
193 | ||
194 | /** | |
195 | * megasas_teardown_frame_pool_fusion - Destroy the cmd frame DMA pool | |
196 | * @instance: Adapter soft state | |
197 | */ | |
198 | static void megasas_teardown_frame_pool_fusion( | |
199 | struct megasas_instance *instance) | |
200 | { | |
201 | int i; | |
202 | struct fusion_context *fusion = instance->ctrl_context; | |
203 | ||
204 | u16 max_cmd = instance->max_fw_cmds; | |
205 | ||
206 | struct megasas_cmd_fusion *cmd; | |
207 | ||
208 | if (!fusion->sg_dma_pool || !fusion->sense_dma_pool) { | |
209 | printk(KERN_ERR "megasas: dma pool is null. SG Pool %p, " | |
210 | "sense pool : %p\n", fusion->sg_dma_pool, | |
211 | fusion->sense_dma_pool); | |
212 | return; | |
213 | } | |
214 | ||
215 | /* | |
216 | * Return all frames to pool | |
217 | */ | |
218 | for (i = 0; i < max_cmd; i++) { | |
219 | ||
220 | cmd = fusion->cmd_list[i]; | |
221 | ||
222 | if (cmd->sg_frame) | |
223 | pci_pool_free(fusion->sg_dma_pool, cmd->sg_frame, | |
224 | cmd->sg_frame_phys_addr); | |
225 | ||
226 | if (cmd->sense) | |
227 | pci_pool_free(fusion->sense_dma_pool, cmd->sense, | |
228 | cmd->sense_phys_addr); | |
229 | } | |
230 | ||
231 | /* | |
232 | * Now destroy the pool itself | |
233 | */ | |
234 | pci_pool_destroy(fusion->sg_dma_pool); | |
235 | pci_pool_destroy(fusion->sense_dma_pool); | |
236 | ||
237 | fusion->sg_dma_pool = NULL; | |
238 | fusion->sense_dma_pool = NULL; | |
239 | } | |
240 | ||
241 | /** | |
242 | * megasas_free_cmds_fusion - Free all the cmds in the free cmd pool | |
243 | * @instance: Adapter soft state | |
244 | */ | |
245 | void | |
246 | megasas_free_cmds_fusion(struct megasas_instance *instance) | |
247 | { | |
248 | int i; | |
249 | struct fusion_context *fusion = instance->ctrl_context; | |
250 | ||
251 | u32 max_cmds, req_sz, reply_sz, io_frames_sz; | |
252 | ||
253 | ||
254 | req_sz = fusion->request_alloc_sz; | |
255 | reply_sz = fusion->reply_alloc_sz; | |
256 | io_frames_sz = fusion->io_frames_alloc_sz; | |
257 | ||
258 | max_cmds = instance->max_fw_cmds; | |
259 | ||
260 | /* Free descriptors and request Frames memory */ | |
261 | if (fusion->req_frames_desc) | |
262 | dma_free_coherent(&instance->pdev->dev, req_sz, | |
263 | fusion->req_frames_desc, | |
264 | fusion->req_frames_desc_phys); | |
265 | ||
266 | if (fusion->reply_frames_desc) { | |
267 | pci_pool_free(fusion->reply_frames_desc_pool, | |
268 | fusion->reply_frames_desc, | |
269 | fusion->reply_frames_desc_phys); | |
270 | pci_pool_destroy(fusion->reply_frames_desc_pool); | |
271 | } | |
272 | ||
273 | if (fusion->io_request_frames) { | |
274 | pci_pool_free(fusion->io_request_frames_pool, | |
275 | fusion->io_request_frames, | |
276 | fusion->io_request_frames_phys); | |
277 | pci_pool_destroy(fusion->io_request_frames_pool); | |
278 | } | |
279 | ||
280 | /* Free the Fusion frame pool */ | |
281 | megasas_teardown_frame_pool_fusion(instance); | |
282 | ||
283 | /* Free all the commands in the cmd_list */ | |
284 | for (i = 0; i < max_cmds; i++) | |
285 | kfree(fusion->cmd_list[i]); | |
286 | ||
287 | /* Free the cmd_list buffer itself */ | |
288 | kfree(fusion->cmd_list); | |
289 | fusion->cmd_list = NULL; | |
290 | ||
291 | INIT_LIST_HEAD(&fusion->cmd_pool); | |
292 | } | |
293 | ||
294 | /** | |
295 | * megasas_create_frame_pool_fusion - Creates DMA pool for cmd frames | |
296 | * @instance: Adapter soft state | |
297 | * | |
298 | */ | |
299 | static int megasas_create_frame_pool_fusion(struct megasas_instance *instance) | |
300 | { | |
301 | int i; | |
302 | u32 max_cmd; | |
303 | struct fusion_context *fusion; | |
304 | struct megasas_cmd_fusion *cmd; | |
305 | u32 total_sz_chain_frame; | |
306 | ||
307 | fusion = instance->ctrl_context; | |
308 | max_cmd = instance->max_fw_cmds; | |
309 | ||
310 | total_sz_chain_frame = MEGASAS_MAX_SZ_CHAIN_FRAME; | |
311 | ||
312 | /* | |
313 | * Use DMA pool facility provided by PCI layer | |
314 | */ | |
315 | ||
316 | fusion->sg_dma_pool = pci_pool_create("megasas sg pool fusion", | |
317 | instance->pdev, | |
318 | total_sz_chain_frame, 4, | |
319 | 0); | |
320 | if (!fusion->sg_dma_pool) { | |
321 | printk(KERN_DEBUG "megasas: failed to setup request pool " | |
322 | "fusion\n"); | |
323 | return -ENOMEM; | |
324 | } | |
325 | fusion->sense_dma_pool = pci_pool_create("megasas sense pool fusion", | |
326 | instance->pdev, | |
327 | SCSI_SENSE_BUFFERSIZE, 64, 0); | |
328 | ||
329 | if (!fusion->sense_dma_pool) { | |
330 | printk(KERN_DEBUG "megasas: failed to setup sense pool " | |
331 | "fusion\n"); | |
332 | pci_pool_destroy(fusion->sg_dma_pool); | |
333 | fusion->sg_dma_pool = NULL; | |
334 | return -ENOMEM; | |
335 | } | |
336 | ||
337 | /* | |
338 | * Allocate and attach a frame to each of the commands in cmd_list | |
339 | */ | |
340 | for (i = 0; i < max_cmd; i++) { | |
341 | ||
342 | cmd = fusion->cmd_list[i]; | |
343 | ||
344 | cmd->sg_frame = pci_pool_alloc(fusion->sg_dma_pool, | |
345 | GFP_KERNEL, | |
346 | &cmd->sg_frame_phys_addr); | |
347 | ||
348 | cmd->sense = pci_pool_alloc(fusion->sense_dma_pool, | |
349 | GFP_KERNEL, &cmd->sense_phys_addr); | |
350 | /* | |
351 | * megasas_teardown_frame_pool_fusion() takes care of freeing | |
352 | * whatever has been allocated | |
353 | */ | |
354 | if (!cmd->sg_frame || !cmd->sense) { | |
355 | printk(KERN_DEBUG "megasas: pci_pool_alloc failed\n"); | |
356 | megasas_teardown_frame_pool_fusion(instance); | |
357 | return -ENOMEM; | |
358 | } | |
359 | } | |
360 | return 0; | |
361 | } | |
362 | ||
363 | /** | |
364 | * megasas_alloc_cmds_fusion - Allocates the command packets | |
365 | * @instance: Adapter soft state | |
366 | * | |
367 | * | |
368 | * Each frame has a 32-bit field called context. This context is used to get | |
369 | * back the megasas_cmd_fusion from the frame when a frame gets completed | |
370 | * In this driver, the 32 bit values are the indices into an array cmd_list. | |
371 | * This array is used only to look up the megasas_cmd_fusion given the context. | |
372 | * The free commands themselves are maintained in a linked list called cmd_pool. | |
373 | * | |
374 | * cmds are formed in the io_request and sg_frame members of the | |
375 | * megasas_cmd_fusion. The context field is used to get a request descriptor | |
376 | * and is used as SMID of the cmd. | |
377 | * SMID value range is from 1 to max_fw_cmds. | |
378 | */ | |
379 | int | |
380 | megasas_alloc_cmds_fusion(struct megasas_instance *instance) | |
381 | { | |
c8e858fe | 382 | int i, j, count; |
9c915a8c AR |
383 | u32 max_cmd, io_frames_sz; |
384 | struct fusion_context *fusion; | |
385 | struct megasas_cmd_fusion *cmd; | |
386 | union MPI2_REPLY_DESCRIPTORS_UNION *reply_desc; | |
387 | u32 offset; | |
388 | dma_addr_t io_req_base_phys; | |
389 | u8 *io_req_base; | |
390 | ||
391 | fusion = instance->ctrl_context; | |
392 | ||
393 | max_cmd = instance->max_fw_cmds; | |
394 | ||
395 | fusion->req_frames_desc = | |
396 | dma_alloc_coherent(&instance->pdev->dev, | |
397 | fusion->request_alloc_sz, | |
398 | &fusion->req_frames_desc_phys, GFP_KERNEL); | |
399 | ||
400 | if (!fusion->req_frames_desc) { | |
401 | printk(KERN_ERR "megasas; Could not allocate memory for " | |
402 | "request_frames\n"); | |
403 | goto fail_req_desc; | |
404 | } | |
405 | ||
c8e858fe | 406 | count = instance->msix_vectors > 0 ? instance->msix_vectors : 1; |
9c915a8c AR |
407 | fusion->reply_frames_desc_pool = |
408 | pci_pool_create("reply_frames pool", instance->pdev, | |
c8e858fe | 409 | fusion->reply_alloc_sz * count, 16, 0); |
9c915a8c AR |
410 | |
411 | if (!fusion->reply_frames_desc_pool) { | |
412 | printk(KERN_ERR "megasas; Could not allocate memory for " | |
413 | "reply_frame pool\n"); | |
414 | goto fail_reply_desc; | |
415 | } | |
416 | ||
417 | fusion->reply_frames_desc = | |
418 | pci_pool_alloc(fusion->reply_frames_desc_pool, GFP_KERNEL, | |
419 | &fusion->reply_frames_desc_phys); | |
420 | if (!fusion->reply_frames_desc) { | |
421 | printk(KERN_ERR "megasas; Could not allocate memory for " | |
422 | "reply_frame pool\n"); | |
423 | pci_pool_destroy(fusion->reply_frames_desc_pool); | |
424 | goto fail_reply_desc; | |
425 | } | |
426 | ||
427 | reply_desc = fusion->reply_frames_desc; | |
c8e858fe | 428 | for (i = 0; i < fusion->reply_q_depth * count; i++, reply_desc++) |
9c915a8c AR |
429 | reply_desc->Words = ULLONG_MAX; |
430 | ||
431 | io_frames_sz = fusion->io_frames_alloc_sz; | |
432 | ||
433 | fusion->io_request_frames_pool = | |
434 | pci_pool_create("io_request_frames pool", instance->pdev, | |
435 | fusion->io_frames_alloc_sz, 16, 0); | |
436 | ||
437 | if (!fusion->io_request_frames_pool) { | |
438 | printk(KERN_ERR "megasas: Could not allocate memory for " | |
439 | "io_request_frame pool\n"); | |
440 | goto fail_io_frames; | |
441 | } | |
442 | ||
443 | fusion->io_request_frames = | |
444 | pci_pool_alloc(fusion->io_request_frames_pool, GFP_KERNEL, | |
445 | &fusion->io_request_frames_phys); | |
446 | if (!fusion->io_request_frames) { | |
447 | printk(KERN_ERR "megasas: Could not allocate memory for " | |
448 | "io_request_frames frames\n"); | |
449 | pci_pool_destroy(fusion->io_request_frames_pool); | |
450 | goto fail_io_frames; | |
451 | } | |
452 | ||
453 | /* | |
454 | * fusion->cmd_list is an array of struct megasas_cmd_fusion pointers. | |
455 | * Allocate the dynamic array first and then allocate individual | |
456 | * commands. | |
457 | */ | |
7731e6bb FW |
458 | fusion->cmd_list = kzalloc(sizeof(struct megasas_cmd_fusion *) |
459 | * max_cmd, GFP_KERNEL); | |
9c915a8c AR |
460 | |
461 | if (!fusion->cmd_list) { | |
462 | printk(KERN_DEBUG "megasas: out of memory. Could not alloc " | |
463 | "memory for cmd_list_fusion\n"); | |
464 | goto fail_cmd_list; | |
465 | } | |
466 | ||
9c915a8c AR |
467 | max_cmd = instance->max_fw_cmds; |
468 | for (i = 0; i < max_cmd; i++) { | |
469 | fusion->cmd_list[i] = kmalloc(sizeof(struct megasas_cmd_fusion), | |
470 | GFP_KERNEL); | |
471 | if (!fusion->cmd_list[i]) { | |
472 | printk(KERN_ERR "Could not alloc cmd list fusion\n"); | |
473 | ||
474 | for (j = 0; j < i; j++) | |
475 | kfree(fusion->cmd_list[j]); | |
476 | ||
477 | kfree(fusion->cmd_list); | |
478 | fusion->cmd_list = NULL; | |
479 | goto fail_cmd_list; | |
480 | } | |
481 | } | |
482 | ||
483 | /* The first 256 bytes (SMID 0) is not used. Don't add to cmd list */ | |
484 | io_req_base = fusion->io_request_frames + | |
485 | MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE; | |
486 | io_req_base_phys = fusion->io_request_frames_phys + | |
487 | MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE; | |
488 | ||
489 | /* | |
490 | * Add all the commands to command pool (fusion->cmd_pool) | |
491 | */ | |
492 | ||
493 | /* SMID 0 is reserved. Set SMID/index from 1 */ | |
494 | for (i = 0; i < max_cmd; i++) { | |
495 | cmd = fusion->cmd_list[i]; | |
496 | offset = MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE * i; | |
497 | memset(cmd, 0, sizeof(struct megasas_cmd_fusion)); | |
498 | cmd->index = i + 1; | |
499 | cmd->scmd = NULL; | |
500 | cmd->sync_cmd_idx = (u32)ULONG_MAX; /* Set to Invalid */ | |
501 | cmd->instance = instance; | |
502 | cmd->io_request = | |
503 | (struct MPI2_RAID_SCSI_IO_REQUEST *) | |
504 | (io_req_base + offset); | |
505 | memset(cmd->io_request, 0, | |
506 | sizeof(struct MPI2_RAID_SCSI_IO_REQUEST)); | |
507 | cmd->io_request_phys_addr = io_req_base_phys + offset; | |
508 | ||
509 | list_add_tail(&cmd->list, &fusion->cmd_pool); | |
510 | } | |
511 | ||
512 | /* | |
513 | * Create a frame pool and assign one frame to each cmd | |
514 | */ | |
515 | if (megasas_create_frame_pool_fusion(instance)) { | |
516 | printk(KERN_DEBUG "megasas: Error creating frame DMA pool\n"); | |
517 | megasas_free_cmds_fusion(instance); | |
518 | goto fail_req_desc; | |
519 | } | |
520 | ||
521 | return 0; | |
522 | ||
523 | fail_cmd_list: | |
524 | pci_pool_free(fusion->io_request_frames_pool, fusion->io_request_frames, | |
525 | fusion->io_request_frames_phys); | |
526 | pci_pool_destroy(fusion->io_request_frames_pool); | |
527 | fail_io_frames: | |
528 | dma_free_coherent(&instance->pdev->dev, fusion->request_alloc_sz, | |
529 | fusion->reply_frames_desc, | |
530 | fusion->reply_frames_desc_phys); | |
531 | pci_pool_free(fusion->reply_frames_desc_pool, | |
532 | fusion->reply_frames_desc, | |
533 | fusion->reply_frames_desc_phys); | |
534 | pci_pool_destroy(fusion->reply_frames_desc_pool); | |
535 | ||
536 | fail_reply_desc: | |
537 | dma_free_coherent(&instance->pdev->dev, fusion->request_alloc_sz, | |
538 | fusion->req_frames_desc, | |
539 | fusion->req_frames_desc_phys); | |
540 | fail_req_desc: | |
541 | return -ENOMEM; | |
542 | } | |
543 | ||
544 | /** | |
545 | * wait_and_poll - Issues a polling command | |
546 | * @instance: Adapter soft state | |
547 | * @cmd: Command packet to be issued | |
548 | * | |
549 | * For polling, MFI requires the cmd_status to be set to 0xFF before posting. | |
550 | */ | |
551 | int | |
552 | wait_and_poll(struct megasas_instance *instance, struct megasas_cmd *cmd) | |
553 | { | |
554 | int i; | |
555 | struct megasas_header *frame_hdr = &cmd->frame->hdr; | |
556 | ||
557 | u32 msecs = MFI_POLL_TIMEOUT_SECS * 1000; | |
558 | ||
559 | /* | |
560 | * Wait for cmd_status to change | |
561 | */ | |
562 | for (i = 0; (i < msecs) && (frame_hdr->cmd_status == 0xff); i += 20) { | |
563 | rmb(); | |
564 | msleep(20); | |
565 | } | |
566 | ||
567 | if (frame_hdr->cmd_status == 0xff) | |
568 | return -ETIME; | |
569 | ||
570 | return 0; | |
571 | } | |
572 | ||
573 | /** | |
574 | * megasas_ioc_init_fusion - Initializes the FW | |
575 | * @instance: Adapter soft state | |
576 | * | |
577 | * Issues the IOC Init cmd | |
578 | */ | |
579 | int | |
580 | megasas_ioc_init_fusion(struct megasas_instance *instance) | |
581 | { | |
582 | struct megasas_init_frame *init_frame; | |
583 | struct MPI2_IOC_INIT_REQUEST *IOCInitMessage; | |
584 | dma_addr_t ioc_init_handle; | |
9c915a8c AR |
585 | struct megasas_cmd *cmd; |
586 | u8 ret; | |
587 | struct fusion_context *fusion; | |
588 | union MEGASAS_REQUEST_DESCRIPTOR_UNION *req_desc; | |
589 | int i; | |
590 | struct megasas_header *frame_hdr; | |
591 | ||
592 | fusion = instance->ctrl_context; | |
593 | ||
594 | cmd = megasas_get_cmd(instance); | |
595 | ||
596 | if (!cmd) { | |
597 | printk(KERN_ERR "Could not allocate cmd for INIT Frame\n"); | |
598 | ret = 1; | |
599 | goto fail_get_cmd; | |
600 | } | |
601 | ||
602 | IOCInitMessage = | |
603 | dma_alloc_coherent(&instance->pdev->dev, | |
604 | sizeof(struct MPI2_IOC_INIT_REQUEST), | |
605 | &ioc_init_handle, GFP_KERNEL); | |
606 | ||
607 | if (!IOCInitMessage) { | |
608 | printk(KERN_ERR "Could not allocate memory for " | |
609 | "IOCInitMessage\n"); | |
610 | ret = 1; | |
611 | goto fail_fw_init; | |
612 | } | |
613 | ||
614 | memset(IOCInitMessage, 0, sizeof(struct MPI2_IOC_INIT_REQUEST)); | |
615 | ||
616 | IOCInitMessage->Function = MPI2_FUNCTION_IOC_INIT; | |
617 | IOCInitMessage->WhoInit = MPI2_WHOINIT_HOST_DRIVER; | |
94cd65dd SS |
618 | IOCInitMessage->MsgVersion = cpu_to_le16(MPI2_VERSION); |
619 | IOCInitMessage->HeaderVersion = cpu_to_le16(MPI2_HEADER_VERSION); | |
620 | IOCInitMessage->SystemRequestFrameSize = cpu_to_le16(MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE / 4); | |
621 | ||
622 | IOCInitMessage->ReplyDescriptorPostQueueDepth = cpu_to_le16(fusion->reply_q_depth); | |
623 | IOCInitMessage->ReplyDescriptorPostQueueAddress = cpu_to_le64(fusion->reply_frames_desc_phys); | |
624 | IOCInitMessage->SystemRequestFrameBaseAddress = cpu_to_le64(fusion->io_request_frames_phys); | |
5738f996 | 625 | IOCInitMessage->HostMSIxVectors = instance->msix_vectors; |
9c915a8c AR |
626 | init_frame = (struct megasas_init_frame *)cmd->frame; |
627 | memset(init_frame, 0, MEGAMFI_FRAME_SIZE); | |
628 | ||
629 | frame_hdr = &cmd->frame->hdr; | |
9c915a8c | 630 | frame_hdr->cmd_status = 0xFF; |
94cd65dd | 631 | frame_hdr->flags |= cpu_to_le16(MFI_FRAME_DONT_POST_IN_REPLY_QUEUE); |
9c915a8c AR |
632 | |
633 | init_frame->cmd = MFI_CMD_INIT; | |
634 | init_frame->cmd_status = 0xFF; | |
635 | ||
d46a3ad6 SS |
636 | /* driver support Extended MSIX */ |
637 | if ((instance->pdev->device == PCI_DEVICE_ID_LSI_INVADER) || | |
638 | (instance->pdev->device == PCI_DEVICE_ID_LSI_FURY)) | |
639 | init_frame->driver_operations. | |
640 | mfi_capabilities.support_additional_msix = 1; | |
21c9e160 AR |
641 | /* driver supports HA / Remote LUN over Fast Path interface */ |
642 | init_frame->driver_operations.mfi_capabilities.support_fp_remote_lun | |
643 | = 1; | |
94cd65dd SS |
644 | /* Convert capability to LE32 */ |
645 | cpu_to_le32s((u32 *)&init_frame->driver_operations.mfi_capabilities); | |
21c9e160 | 646 | |
94cd65dd SS |
647 | init_frame->queue_info_new_phys_addr_lo = cpu_to_le32((u32)ioc_init_handle); |
648 | init_frame->data_xfer_len = cpu_to_le32(sizeof(struct MPI2_IOC_INIT_REQUEST)); | |
9c915a8c AR |
649 | |
650 | req_desc = | |
651 | (union MEGASAS_REQUEST_DESCRIPTOR_UNION *)fusion->req_frames_desc; | |
652 | ||
94cd65dd | 653 | req_desc->Words = 0; |
9c915a8c AR |
654 | req_desc->MFAIo.RequestFlags = |
655 | (MEGASAS_REQ_DESCRIPT_FLAGS_MFA << | |
656 | MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT); | |
94cd65dd SS |
657 | cpu_to_le32s((u32 *)&req_desc->MFAIo); |
658 | req_desc->Words |= cpu_to_le64(cmd->frame_phys_addr); | |
9c915a8c AR |
659 | |
660 | /* | |
661 | * disable the intr before firing the init frame | |
662 | */ | |
d46a3ad6 | 663 | instance->instancet->disable_intr(instance); |
9c915a8c AR |
664 | |
665 | for (i = 0; i < (10 * 1000); i += 20) { | |
666 | if (readl(&instance->reg_set->doorbell) & 1) | |
667 | msleep(20); | |
668 | else | |
669 | break; | |
670 | } | |
671 | ||
672 | instance->instancet->fire_cmd(instance, req_desc->u.low, | |
673 | req_desc->u.high, instance->reg_set); | |
674 | ||
675 | wait_and_poll(instance, cmd); | |
676 | ||
677 | frame_hdr = &cmd->frame->hdr; | |
678 | if (frame_hdr->cmd_status != 0) { | |
679 | ret = 1; | |
680 | goto fail_fw_init; | |
681 | } | |
682 | printk(KERN_ERR "megasas:IOC Init cmd success\n"); | |
683 | ||
684 | ret = 0; | |
685 | ||
686 | fail_fw_init: | |
687 | megasas_return_cmd(instance, cmd); | |
688 | if (IOCInitMessage) | |
689 | dma_free_coherent(&instance->pdev->dev, | |
690 | sizeof(struct MPI2_IOC_INIT_REQUEST), | |
691 | IOCInitMessage, ioc_init_handle); | |
692 | fail_get_cmd: | |
693 | return ret; | |
694 | } | |
695 | ||
9c915a8c AR |
696 | /* |
697 | * megasas_get_ld_map_info - Returns FW's ld_map structure | |
698 | * @instance: Adapter soft state | |
699 | * @pend: Pend the command or not | |
700 | * Issues an internal command (DCMD) to get the FW's controller PD | |
701 | * list structure. This information is mainly used to find out SYSTEM | |
702 | * supported by the FW. | |
703 | */ | |
704 | static int | |
705 | megasas_get_ld_map_info(struct megasas_instance *instance) | |
706 | { | |
707 | int ret = 0; | |
708 | struct megasas_cmd *cmd; | |
709 | struct megasas_dcmd_frame *dcmd; | |
710 | struct MR_FW_RAID_MAP_ALL *ci; | |
711 | dma_addr_t ci_h = 0; | |
712 | u32 size_map_info; | |
713 | struct fusion_context *fusion; | |
714 | ||
715 | cmd = megasas_get_cmd(instance); | |
716 | ||
717 | if (!cmd) { | |
718 | printk(KERN_DEBUG "megasas: Failed to get cmd for map info.\n"); | |
719 | return -ENOMEM; | |
720 | } | |
721 | ||
722 | fusion = instance->ctrl_context; | |
723 | ||
724 | if (!fusion) { | |
725 | megasas_return_cmd(instance, cmd); | |
726 | return 1; | |
727 | } | |
728 | ||
729 | dcmd = &cmd->frame->dcmd; | |
730 | ||
731 | size_map_info = sizeof(struct MR_FW_RAID_MAP) + | |
732 | (sizeof(struct MR_LD_SPAN_MAP) *(MAX_LOGICAL_DRIVES - 1)); | |
733 | ||
734 | ci = fusion->ld_map[(instance->map_id & 1)]; | |
735 | ci_h = fusion->ld_map_phys[(instance->map_id & 1)]; | |
736 | ||
737 | if (!ci) { | |
738 | printk(KERN_DEBUG "Failed to alloc mem for ld_map_info\n"); | |
739 | megasas_return_cmd(instance, cmd); | |
740 | return -ENOMEM; | |
741 | } | |
742 | ||
743 | memset(ci, 0, sizeof(*ci)); | |
744 | memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); | |
745 | ||
746 | dcmd->cmd = MFI_CMD_DCMD; | |
747 | dcmd->cmd_status = 0xFF; | |
748 | dcmd->sge_count = 1; | |
94cd65dd | 749 | dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_READ); |
9c915a8c AR |
750 | dcmd->timeout = 0; |
751 | dcmd->pad_0 = 0; | |
94cd65dd SS |
752 | dcmd->data_xfer_len = cpu_to_le32(size_map_info); |
753 | dcmd->opcode = cpu_to_le32(MR_DCMD_LD_MAP_GET_INFO); | |
754 | dcmd->sgl.sge32[0].phys_addr = cpu_to_le32(ci_h); | |
755 | dcmd->sgl.sge32[0].length = cpu_to_le32(size_map_info); | |
9c915a8c AR |
756 | |
757 | if (!megasas_issue_polled(instance, cmd)) | |
758 | ret = 0; | |
759 | else { | |
760 | printk(KERN_ERR "megasas: Get LD Map Info Failed\n"); | |
761 | ret = -1; | |
762 | } | |
763 | ||
764 | megasas_return_cmd(instance, cmd); | |
765 | ||
766 | return ret; | |
767 | } | |
768 | ||
769 | u8 | |
770 | megasas_get_map_info(struct megasas_instance *instance) | |
771 | { | |
772 | struct fusion_context *fusion = instance->ctrl_context; | |
773 | ||
774 | fusion->fast_path_io = 0; | |
775 | if (!megasas_get_ld_map_info(instance)) { | |
bc93d425 | 776 | if (MR_ValidateMapInfo(instance)) { |
9c915a8c AR |
777 | fusion->fast_path_io = 1; |
778 | return 0; | |
779 | } | |
780 | } | |
781 | return 1; | |
782 | } | |
783 | ||
784 | /* | |
785 | * megasas_sync_map_info - Returns FW's ld_map structure | |
786 | * @instance: Adapter soft state | |
787 | * | |
788 | * Issues an internal command (DCMD) to get the FW's controller PD | |
789 | * list structure. This information is mainly used to find out SYSTEM | |
790 | * supported by the FW. | |
791 | */ | |
792 | int | |
793 | megasas_sync_map_info(struct megasas_instance *instance) | |
794 | { | |
795 | int ret = 0, i; | |
796 | struct megasas_cmd *cmd; | |
797 | struct megasas_dcmd_frame *dcmd; | |
798 | u32 size_sync_info, num_lds; | |
799 | struct fusion_context *fusion; | |
800 | struct MR_LD_TARGET_SYNC *ci = NULL; | |
801 | struct MR_FW_RAID_MAP_ALL *map; | |
802 | struct MR_LD_RAID *raid; | |
803 | struct MR_LD_TARGET_SYNC *ld_sync; | |
804 | dma_addr_t ci_h = 0; | |
805 | u32 size_map_info; | |
806 | ||
807 | cmd = megasas_get_cmd(instance); | |
808 | ||
809 | if (!cmd) { | |
810 | printk(KERN_DEBUG "megasas: Failed to get cmd for sync" | |
811 | "info.\n"); | |
812 | return -ENOMEM; | |
813 | } | |
814 | ||
815 | fusion = instance->ctrl_context; | |
816 | ||
817 | if (!fusion) { | |
818 | megasas_return_cmd(instance, cmd); | |
819 | return 1; | |
820 | } | |
821 | ||
822 | map = fusion->ld_map[instance->map_id & 1]; | |
823 | ||
94cd65dd | 824 | num_lds = le32_to_cpu(map->raidMap.ldCount); |
9c915a8c AR |
825 | |
826 | dcmd = &cmd->frame->dcmd; | |
827 | ||
828 | size_sync_info = sizeof(struct MR_LD_TARGET_SYNC) *num_lds; | |
829 | ||
830 | memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); | |
831 | ||
832 | ci = (struct MR_LD_TARGET_SYNC *) | |
833 | fusion->ld_map[(instance->map_id - 1) & 1]; | |
834 | memset(ci, 0, sizeof(struct MR_FW_RAID_MAP_ALL)); | |
835 | ||
836 | ci_h = fusion->ld_map_phys[(instance->map_id - 1) & 1]; | |
837 | ||
838 | ld_sync = (struct MR_LD_TARGET_SYNC *)ci; | |
839 | ||
840 | for (i = 0; i < num_lds; i++, ld_sync++) { | |
841 | raid = MR_LdRaidGet(i, map); | |
842 | ld_sync->targetId = MR_GetLDTgtId(i, map); | |
843 | ld_sync->seqNum = raid->seqNum; | |
844 | } | |
845 | ||
846 | size_map_info = sizeof(struct MR_FW_RAID_MAP) + | |
847 | (sizeof(struct MR_LD_SPAN_MAP) *(MAX_LOGICAL_DRIVES - 1)); | |
848 | ||
849 | dcmd->cmd = MFI_CMD_DCMD; | |
850 | dcmd->cmd_status = 0xFF; | |
851 | dcmd->sge_count = 1; | |
94cd65dd | 852 | dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_WRITE); |
9c915a8c AR |
853 | dcmd->timeout = 0; |
854 | dcmd->pad_0 = 0; | |
94cd65dd | 855 | dcmd->data_xfer_len = cpu_to_le32(size_map_info); |
9c915a8c AR |
856 | dcmd->mbox.b[0] = num_lds; |
857 | dcmd->mbox.b[1] = MEGASAS_DCMD_MBOX_PEND_FLAG; | |
94cd65dd SS |
858 | dcmd->opcode = cpu_to_le32(MR_DCMD_LD_MAP_GET_INFO); |
859 | dcmd->sgl.sge32[0].phys_addr = cpu_to_le32(ci_h); | |
860 | dcmd->sgl.sge32[0].length = cpu_to_le32(size_map_info); | |
9c915a8c AR |
861 | |
862 | instance->map_update_cmd = cmd; | |
863 | ||
864 | instance->instancet->issue_dcmd(instance, cmd); | |
865 | ||
866 | return ret; | |
867 | } | |
868 | ||
39b72c3c SS |
869 | /* |
870 | * meagasas_display_intel_branding - Display branding string | |
871 | * @instance: per adapter object | |
872 | * | |
873 | * Return nothing. | |
874 | */ | |
875 | static void | |
876 | megasas_display_intel_branding(struct megasas_instance *instance) | |
877 | { | |
878 | if (instance->pdev->subsystem_vendor != PCI_VENDOR_ID_INTEL) | |
879 | return; | |
880 | ||
881 | switch (instance->pdev->device) { | |
882 | case PCI_DEVICE_ID_LSI_INVADER: | |
883 | switch (instance->pdev->subsystem_device) { | |
884 | case MEGARAID_INTEL_RS3DC080_SSDID: | |
885 | dev_info(&instance->pdev->dev, "scsi host %d: %s\n", | |
886 | instance->host->host_no, | |
887 | MEGARAID_INTEL_RS3DC080_BRANDING); | |
888 | break; | |
889 | case MEGARAID_INTEL_RS3DC040_SSDID: | |
890 | dev_info(&instance->pdev->dev, "scsi host %d: %s\n", | |
891 | instance->host->host_no, | |
892 | MEGARAID_INTEL_RS3DC040_BRANDING); | |
893 | break; | |
894 | case MEGARAID_INTEL_RS3SC008_SSDID: | |
895 | dev_info(&instance->pdev->dev, "scsi host %d: %s\n", | |
896 | instance->host->host_no, | |
897 | MEGARAID_INTEL_RS3SC008_BRANDING); | |
898 | break; | |
899 | case MEGARAID_INTEL_RS3MC044_SSDID: | |
900 | dev_info(&instance->pdev->dev, "scsi host %d: %s\n", | |
901 | instance->host->host_no, | |
902 | MEGARAID_INTEL_RS3MC044_BRANDING); | |
903 | break; | |
904 | default: | |
905 | break; | |
906 | } | |
907 | break; | |
908 | case PCI_DEVICE_ID_LSI_FURY: | |
909 | switch (instance->pdev->subsystem_device) { | |
910 | case MEGARAID_INTEL_RS3WC080_SSDID: | |
911 | dev_info(&instance->pdev->dev, "scsi host %d: %s\n", | |
912 | instance->host->host_no, | |
913 | MEGARAID_INTEL_RS3WC080_BRANDING); | |
914 | break; | |
915 | case MEGARAID_INTEL_RS3WC040_SSDID: | |
916 | dev_info(&instance->pdev->dev, "scsi host %d: %s\n", | |
917 | instance->host->host_no, | |
918 | MEGARAID_INTEL_RS3WC040_BRANDING); | |
919 | break; | |
920 | default: | |
921 | break; | |
922 | } | |
923 | break; | |
924 | default: | |
925 | break; | |
926 | } | |
927 | } | |
928 | ||
9c915a8c AR |
929 | /** |
930 | * megasas_init_adapter_fusion - Initializes the FW | |
931 | * @instance: Adapter soft state | |
932 | * | |
933 | * This is the main function for initializing firmware. | |
934 | */ | |
935 | u32 | |
936 | megasas_init_adapter_fusion(struct megasas_instance *instance) | |
937 | { | |
938 | struct megasas_register_set __iomem *reg_set; | |
939 | struct fusion_context *fusion; | |
940 | u32 max_cmd; | |
c8e858fe | 941 | int i = 0, count; |
9c915a8c AR |
942 | |
943 | fusion = instance->ctrl_context; | |
944 | ||
945 | reg_set = instance->reg_set; | |
946 | ||
947 | /* | |
948 | * Get various operational parameters from status register | |
949 | */ | |
950 | instance->max_fw_cmds = | |
951 | instance->instancet->read_fw_status_reg(reg_set) & 0x00FFFF; | |
952 | instance->max_fw_cmds = min(instance->max_fw_cmds, (u16)1008); | |
953 | ||
954 | /* | |
955 | * Reduce the max supported cmds by 1. This is to ensure that the | |
956 | * reply_q_sz (1 more than the max cmd that driver may send) | |
957 | * does not exceed max cmds that the FW can support | |
958 | */ | |
959 | instance->max_fw_cmds = instance->max_fw_cmds-1; | |
960 | /* Only internal cmds (DCMD) need to have MFI frames */ | |
961 | instance->max_mfi_cmds = MEGASAS_INT_CMDS; | |
962 | ||
963 | max_cmd = instance->max_fw_cmds; | |
964 | ||
965 | fusion->reply_q_depth = ((max_cmd + 1 + 15)/16)*16; | |
966 | ||
967 | fusion->request_alloc_sz = | |
968 | sizeof(union MEGASAS_REQUEST_DESCRIPTOR_UNION) *max_cmd; | |
969 | fusion->reply_alloc_sz = sizeof(union MPI2_REPLY_DESCRIPTORS_UNION) | |
970 | *(fusion->reply_q_depth); | |
971 | fusion->io_frames_alloc_sz = MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE + | |
972 | (MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE * | |
973 | (max_cmd + 1)); /* Extra 1 for SMID 0 */ | |
974 | ||
975 | fusion->max_sge_in_main_msg = | |
976 | (MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE - | |
977 | offsetof(struct MPI2_RAID_SCSI_IO_REQUEST, SGL))/16; | |
978 | ||
979 | fusion->max_sge_in_chain = | |
980 | MEGASAS_MAX_SZ_CHAIN_FRAME / sizeof(union MPI2_SGE_IO_UNION); | |
981 | ||
982 | instance->max_num_sge = fusion->max_sge_in_main_msg + | |
983 | fusion->max_sge_in_chain - 2; | |
984 | ||
985 | /* Used for pass thru MFI frame (DCMD) */ | |
986 | fusion->chain_offset_mfi_pthru = | |
987 | offsetof(struct MPI2_RAID_SCSI_IO_REQUEST, SGL)/16; | |
988 | ||
989 | fusion->chain_offset_io_request = | |
990 | (MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE - | |
991 | sizeof(union MPI2_SGE_IO_UNION))/16; | |
992 | ||
c8e858fe AR |
993 | count = instance->msix_vectors > 0 ? instance->msix_vectors : 1; |
994 | for (i = 0 ; i < count; i++) | |
995 | fusion->last_reply_idx[i] = 0; | |
9c915a8c AR |
996 | |
997 | /* | |
998 | * Allocate memory for descriptors | |
999 | * Create a pool of commands | |
1000 | */ | |
1001 | if (megasas_alloc_cmds(instance)) | |
1002 | goto fail_alloc_mfi_cmds; | |
1003 | if (megasas_alloc_cmds_fusion(instance)) | |
1004 | goto fail_alloc_cmds; | |
1005 | ||
1006 | if (megasas_ioc_init_fusion(instance)) | |
1007 | goto fail_ioc_init; | |
1008 | ||
39b72c3c SS |
1009 | megasas_display_intel_branding(instance); |
1010 | ||
9c915a8c AR |
1011 | instance->flag_ieee = 1; |
1012 | ||
1013 | fusion->map_sz = sizeof(struct MR_FW_RAID_MAP) + | |
1014 | (sizeof(struct MR_LD_SPAN_MAP) *(MAX_LOGICAL_DRIVES - 1)); | |
1015 | ||
1016 | fusion->fast_path_io = 0; | |
1017 | ||
1018 | for (i = 0; i < 2; i++) { | |
1019 | fusion->ld_map[i] = dma_alloc_coherent(&instance->pdev->dev, | |
1020 | fusion->map_sz, | |
1021 | &fusion->ld_map_phys[i], | |
1022 | GFP_KERNEL); | |
1023 | if (!fusion->ld_map[i]) { | |
1024 | printk(KERN_ERR "megasas: Could not allocate memory " | |
1025 | "for map info\n"); | |
1026 | goto fail_map_info; | |
1027 | } | |
1028 | } | |
1029 | ||
1030 | if (!megasas_get_map_info(instance)) | |
1031 | megasas_sync_map_info(instance); | |
1032 | ||
1033 | return 0; | |
1034 | ||
9c915a8c AR |
1035 | fail_map_info: |
1036 | if (i == 1) | |
1037 | dma_free_coherent(&instance->pdev->dev, fusion->map_sz, | |
1038 | fusion->ld_map[0], fusion->ld_map_phys[0]); | |
1039 | fail_ioc_init: | |
eb1b1237 AR |
1040 | megasas_free_cmds_fusion(instance); |
1041 | fail_alloc_cmds: | |
1042 | megasas_free_cmds(instance); | |
1043 | fail_alloc_mfi_cmds: | |
9c915a8c AR |
1044 | return 1; |
1045 | } | |
1046 | ||
1047 | /** | |
1048 | * megasas_fire_cmd_fusion - Sends command to the FW | |
1049 | * @frame_phys_addr : Physical address of cmd | |
1050 | * @frame_count : Number of frames for the command | |
1051 | * @regs : MFI register set | |
1052 | */ | |
1053 | void | |
1054 | megasas_fire_cmd_fusion(struct megasas_instance *instance, | |
1055 | dma_addr_t req_desc_lo, | |
1056 | u32 req_desc_hi, | |
1057 | struct megasas_register_set __iomem *regs) | |
1058 | { | |
1059 | unsigned long flags; | |
1060 | ||
1061 | spin_lock_irqsave(&instance->hba_lock, flags); | |
1062 | ||
94cd65dd SS |
1063 | writel(le32_to_cpu(req_desc_lo), &(regs)->inbound_low_queue_port); |
1064 | writel(le32_to_cpu(req_desc_hi), &(regs)->inbound_high_queue_port); | |
9c915a8c AR |
1065 | spin_unlock_irqrestore(&instance->hba_lock, flags); |
1066 | } | |
1067 | ||
1068 | /** | |
1069 | * map_cmd_status - Maps FW cmd status to OS cmd status | |
1070 | * @cmd : Pointer to cmd | |
1071 | * @status : status of cmd returned by FW | |
1072 | * @ext_status : ext status of cmd returned by FW | |
1073 | */ | |
1074 | ||
1075 | void | |
1076 | map_cmd_status(struct megasas_cmd_fusion *cmd, u8 status, u8 ext_status) | |
1077 | { | |
1078 | ||
1079 | switch (status) { | |
1080 | ||
1081 | case MFI_STAT_OK: | |
1082 | cmd->scmd->result = DID_OK << 16; | |
1083 | break; | |
1084 | ||
1085 | case MFI_STAT_SCSI_IO_FAILED: | |
1086 | case MFI_STAT_LD_INIT_IN_PROGRESS: | |
1087 | cmd->scmd->result = (DID_ERROR << 16) | ext_status; | |
1088 | break; | |
1089 | ||
1090 | case MFI_STAT_SCSI_DONE_WITH_ERROR: | |
1091 | ||
1092 | cmd->scmd->result = (DID_OK << 16) | ext_status; | |
1093 | if (ext_status == SAM_STAT_CHECK_CONDITION) { | |
1094 | memset(cmd->scmd->sense_buffer, 0, | |
1095 | SCSI_SENSE_BUFFERSIZE); | |
1096 | memcpy(cmd->scmd->sense_buffer, cmd->sense, | |
1097 | SCSI_SENSE_BUFFERSIZE); | |
1098 | cmd->scmd->result |= DRIVER_SENSE << 24; | |
1099 | } | |
1100 | break; | |
1101 | ||
1102 | case MFI_STAT_LD_OFFLINE: | |
1103 | case MFI_STAT_DEVICE_NOT_FOUND: | |
1104 | cmd->scmd->result = DID_BAD_TARGET << 16; | |
1105 | break; | |
36807e67 AR |
1106 | case MFI_STAT_CONFIG_SEQ_MISMATCH: |
1107 | cmd->scmd->result = DID_IMM_RETRY << 16; | |
1108 | break; | |
9c915a8c AR |
1109 | default: |
1110 | printk(KERN_DEBUG "megasas: FW status %#x\n", status); | |
1111 | cmd->scmd->result = DID_ERROR << 16; | |
1112 | break; | |
1113 | } | |
1114 | } | |
1115 | ||
1116 | /** | |
1117 | * megasas_make_sgl_fusion - Prepares 32-bit SGL | |
1118 | * @instance: Adapter soft state | |
1119 | * @scp: SCSI command from the mid-layer | |
1120 | * @sgl_ptr: SGL to be filled in | |
1121 | * @cmd: cmd we are working on | |
1122 | * | |
1123 | * If successful, this function returns the number of SG elements. | |
1124 | */ | |
1125 | static int | |
1126 | megasas_make_sgl_fusion(struct megasas_instance *instance, | |
1127 | struct scsi_cmnd *scp, | |
1128 | struct MPI25_IEEE_SGE_CHAIN64 *sgl_ptr, | |
1129 | struct megasas_cmd_fusion *cmd) | |
1130 | { | |
36807e67 | 1131 | int i, sg_processed, sge_count; |
9c915a8c AR |
1132 | struct scatterlist *os_sgl; |
1133 | struct fusion_context *fusion; | |
1134 | ||
1135 | fusion = instance->ctrl_context; | |
1136 | ||
21d3c710 SS |
1137 | if ((instance->pdev->device == PCI_DEVICE_ID_LSI_INVADER) || |
1138 | (instance->pdev->device == PCI_DEVICE_ID_LSI_FURY)) { | |
36807e67 AR |
1139 | struct MPI25_IEEE_SGE_CHAIN64 *sgl_ptr_end = sgl_ptr; |
1140 | sgl_ptr_end += fusion->max_sge_in_main_msg - 1; | |
1141 | sgl_ptr_end->Flags = 0; | |
1142 | } | |
9c915a8c AR |
1143 | |
1144 | sge_count = scsi_dma_map(scp); | |
1145 | ||
1146 | BUG_ON(sge_count < 0); | |
1147 | ||
1148 | if (sge_count > instance->max_num_sge || !sge_count) | |
1149 | return sge_count; | |
1150 | ||
9c915a8c | 1151 | scsi_for_each_sg(scp, os_sgl, sge_count, i) { |
94cd65dd SS |
1152 | sgl_ptr->Length = cpu_to_le32(sg_dma_len(os_sgl)); |
1153 | sgl_ptr->Address = cpu_to_le64(sg_dma_address(os_sgl)); | |
9c915a8c | 1154 | sgl_ptr->Flags = 0; |
21d3c710 SS |
1155 | if ((instance->pdev->device == PCI_DEVICE_ID_LSI_INVADER) || |
1156 | (instance->pdev->device == PCI_DEVICE_ID_LSI_FURY)) { | |
36807e67 AR |
1157 | if (i == sge_count - 1) |
1158 | sgl_ptr->Flags = IEEE_SGE_FLAGS_END_OF_LIST; | |
1159 | } | |
9c915a8c AR |
1160 | sgl_ptr++; |
1161 | ||
1162 | sg_processed = i + 1; | |
1163 | ||
1164 | if ((sg_processed == (fusion->max_sge_in_main_msg - 1)) && | |
1165 | (sge_count > fusion->max_sge_in_main_msg)) { | |
1166 | ||
1167 | struct MPI25_IEEE_SGE_CHAIN64 *sg_chain; | |
21d3c710 SS |
1168 | if ((instance->pdev->device == |
1169 | PCI_DEVICE_ID_LSI_INVADER) || | |
1170 | (instance->pdev->device == | |
1171 | PCI_DEVICE_ID_LSI_FURY)) { | |
94cd65dd SS |
1172 | if ((le16_to_cpu(cmd->io_request->IoFlags) & |
1173 | MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH) != | |
1174 | MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH) | |
36807e67 AR |
1175 | cmd->io_request->ChainOffset = |
1176 | fusion-> | |
1177 | chain_offset_io_request; | |
1178 | else | |
1179 | cmd->io_request->ChainOffset = 0; | |
1180 | } else | |
1181 | cmd->io_request->ChainOffset = | |
1182 | fusion->chain_offset_io_request; | |
1183 | ||
9c915a8c AR |
1184 | sg_chain = sgl_ptr; |
1185 | /* Prepare chain element */ | |
1186 | sg_chain->NextChainOffset = 0; | |
21d3c710 SS |
1187 | if ((instance->pdev->device == |
1188 | PCI_DEVICE_ID_LSI_INVADER) || | |
1189 | (instance->pdev->device == | |
1190 | PCI_DEVICE_ID_LSI_FURY)) | |
36807e67 AR |
1191 | sg_chain->Flags = IEEE_SGE_FLAGS_CHAIN_ELEMENT; |
1192 | else | |
1193 | sg_chain->Flags = | |
1194 | (IEEE_SGE_FLAGS_CHAIN_ELEMENT | | |
1195 | MPI2_IEEE_SGE_FLAGS_IOCPLBNTA_ADDR); | |
94cd65dd SS |
1196 | sg_chain->Length = cpu_to_le32((sizeof(union MPI2_SGE_IO_UNION) * (sge_count - sg_processed))); |
1197 | sg_chain->Address = cpu_to_le64(cmd->sg_frame_phys_addr); | |
9c915a8c AR |
1198 | |
1199 | sgl_ptr = | |
1200 | (struct MPI25_IEEE_SGE_CHAIN64 *)cmd->sg_frame; | |
1201 | } | |
1202 | } | |
1203 | ||
1204 | return sge_count; | |
1205 | } | |
1206 | ||
1207 | /** | |
1208 | * megasas_set_pd_lba - Sets PD LBA | |
1209 | * @cdb: CDB | |
1210 | * @cdb_len: cdb length | |
1211 | * @start_blk: Start block of IO | |
1212 | * | |
1213 | * Used to set the PD LBA in CDB for FP IOs | |
1214 | */ | |
1215 | void | |
1216 | megasas_set_pd_lba(struct MPI2_RAID_SCSI_IO_REQUEST *io_request, u8 cdb_len, | |
1217 | struct IO_REQUEST_INFO *io_info, struct scsi_cmnd *scp, | |
1218 | struct MR_FW_RAID_MAP_ALL *local_map_ptr, u32 ref_tag) | |
1219 | { | |
1220 | struct MR_LD_RAID *raid; | |
1221 | u32 ld; | |
1222 | u64 start_blk = io_info->pdBlock; | |
1223 | u8 *cdb = io_request->CDB.CDB32; | |
1224 | u32 num_blocks = io_info->numBlocks; | |
495c5609 | 1225 | u8 opcode = 0, flagvals = 0, groupnum = 0, control = 0; |
9c915a8c AR |
1226 | |
1227 | /* Check if T10 PI (DIF) is enabled for this LD */ | |
1228 | ld = MR_TargetIdToLdGet(io_info->ldTgtId, local_map_ptr); | |
1229 | raid = MR_LdRaidGet(ld, local_map_ptr); | |
1230 | if (raid->capability.ldPiMode == MR_PROT_INFO_TYPE_CONTROLLER) { | |
1231 | memset(cdb, 0, sizeof(io_request->CDB.CDB32)); | |
1232 | cdb[0] = MEGASAS_SCSI_VARIABLE_LENGTH_CMD; | |
1233 | cdb[7] = MEGASAS_SCSI_ADDL_CDB_LEN; | |
1234 | ||
1235 | if (scp->sc_data_direction == PCI_DMA_FROMDEVICE) | |
1236 | cdb[9] = MEGASAS_SCSI_SERVICE_ACTION_READ32; | |
1237 | else | |
1238 | cdb[9] = MEGASAS_SCSI_SERVICE_ACTION_WRITE32; | |
1239 | cdb[10] = MEGASAS_RD_WR_PROTECT_CHECK_ALL; | |
1240 | ||
1241 | /* LBA */ | |
1242 | cdb[12] = (u8)((start_blk >> 56) & 0xff); | |
1243 | cdb[13] = (u8)((start_blk >> 48) & 0xff); | |
1244 | cdb[14] = (u8)((start_blk >> 40) & 0xff); | |
1245 | cdb[15] = (u8)((start_blk >> 32) & 0xff); | |
1246 | cdb[16] = (u8)((start_blk >> 24) & 0xff); | |
1247 | cdb[17] = (u8)((start_blk >> 16) & 0xff); | |
1248 | cdb[18] = (u8)((start_blk >> 8) & 0xff); | |
1249 | cdb[19] = (u8)(start_blk & 0xff); | |
1250 | ||
1251 | /* Logical block reference tag */ | |
1252 | io_request->CDB.EEDP32.PrimaryReferenceTag = | |
1253 | cpu_to_be32(ref_tag); | |
1254 | io_request->CDB.EEDP32.PrimaryApplicationTagMask = 0xffff; | |
94cd65dd | 1255 | io_request->IoFlags = cpu_to_le16(32); /* Specify 32-byte cdb */ |
9c915a8c AR |
1256 | |
1257 | /* Transfer length */ | |
1258 | cdb[28] = (u8)((num_blocks >> 24) & 0xff); | |
1259 | cdb[29] = (u8)((num_blocks >> 16) & 0xff); | |
1260 | cdb[30] = (u8)((num_blocks >> 8) & 0xff); | |
1261 | cdb[31] = (u8)(num_blocks & 0xff); | |
1262 | ||
1263 | /* set SCSI IO EEDPFlags */ | |
1264 | if (scp->sc_data_direction == PCI_DMA_FROMDEVICE) { | |
94cd65dd | 1265 | io_request->EEDPFlags = cpu_to_le16( |
9c915a8c AR |
1266 | MPI2_SCSIIO_EEDPFLAGS_INC_PRI_REFTAG | |
1267 | MPI2_SCSIIO_EEDPFLAGS_CHECK_REFTAG | | |
1268 | MPI2_SCSIIO_EEDPFLAGS_CHECK_REMOVE_OP | | |
1269 | MPI2_SCSIIO_EEDPFLAGS_CHECK_APPTAG | | |
94cd65dd | 1270 | MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD); |
9c915a8c | 1271 | } else { |
94cd65dd | 1272 | io_request->EEDPFlags = cpu_to_le16( |
9c915a8c | 1273 | MPI2_SCSIIO_EEDPFLAGS_INC_PRI_REFTAG | |
94cd65dd | 1274 | MPI2_SCSIIO_EEDPFLAGS_INSERT_OP); |
9c915a8c | 1275 | } |
94cd65dd SS |
1276 | io_request->Control |= cpu_to_le32((0x4 << 26)); |
1277 | io_request->EEDPBlockSize = cpu_to_le32(scp->device->sector_size); | |
9c915a8c AR |
1278 | } else { |
1279 | /* Some drives don't support 16/12 byte CDB's, convert to 10 */ | |
1280 | if (((cdb_len == 12) || (cdb_len == 16)) && | |
1281 | (start_blk <= 0xffffffff)) { | |
1282 | if (cdb_len == 16) { | |
1283 | opcode = cdb[0] == READ_16 ? READ_10 : WRITE_10; | |
1284 | flagvals = cdb[1]; | |
1285 | groupnum = cdb[14]; | |
1286 | control = cdb[15]; | |
1287 | } else { | |
1288 | opcode = cdb[0] == READ_12 ? READ_10 : WRITE_10; | |
1289 | flagvals = cdb[1]; | |
1290 | groupnum = cdb[10]; | |
1291 | control = cdb[11]; | |
1292 | } | |
1293 | ||
1294 | memset(cdb, 0, sizeof(io_request->CDB.CDB32)); | |
1295 | ||
1296 | cdb[0] = opcode; | |
1297 | cdb[1] = flagvals; | |
1298 | cdb[6] = groupnum; | |
1299 | cdb[9] = control; | |
1300 | ||
1301 | /* Transfer length */ | |
1302 | cdb[8] = (u8)(num_blocks & 0xff); | |
1303 | cdb[7] = (u8)((num_blocks >> 8) & 0xff); | |
1304 | ||
94cd65dd | 1305 | io_request->IoFlags = cpu_to_le16(10); /* Specify 10-byte cdb */ |
9c915a8c | 1306 | cdb_len = 10; |
495c5609 AR |
1307 | } else if ((cdb_len < 16) && (start_blk > 0xffffffff)) { |
1308 | /* Convert to 16 byte CDB for large LBA's */ | |
1309 | switch (cdb_len) { | |
1310 | case 6: | |
1311 | opcode = cdb[0] == READ_6 ? READ_16 : WRITE_16; | |
1312 | control = cdb[5]; | |
1313 | break; | |
1314 | case 10: | |
1315 | opcode = | |
1316 | cdb[0] == READ_10 ? READ_16 : WRITE_16; | |
1317 | flagvals = cdb[1]; | |
1318 | groupnum = cdb[6]; | |
1319 | control = cdb[9]; | |
1320 | break; | |
1321 | case 12: | |
1322 | opcode = | |
1323 | cdb[0] == READ_12 ? READ_16 : WRITE_16; | |
1324 | flagvals = cdb[1]; | |
1325 | groupnum = cdb[10]; | |
1326 | control = cdb[11]; | |
1327 | break; | |
1328 | } | |
1329 | ||
1330 | memset(cdb, 0, sizeof(io_request->CDB.CDB32)); | |
1331 | ||
1332 | cdb[0] = opcode; | |
1333 | cdb[1] = flagvals; | |
1334 | cdb[14] = groupnum; | |
1335 | cdb[15] = control; | |
1336 | ||
1337 | /* Transfer length */ | |
1338 | cdb[13] = (u8)(num_blocks & 0xff); | |
1339 | cdb[12] = (u8)((num_blocks >> 8) & 0xff); | |
1340 | cdb[11] = (u8)((num_blocks >> 16) & 0xff); | |
1341 | cdb[10] = (u8)((num_blocks >> 24) & 0xff); | |
1342 | ||
94cd65dd | 1343 | io_request->IoFlags = cpu_to_le16(16); /* Specify 16-byte cdb */ |
495c5609 | 1344 | cdb_len = 16; |
9c915a8c AR |
1345 | } |
1346 | ||
1347 | /* Normal case, just load LBA here */ | |
1348 | switch (cdb_len) { | |
1349 | case 6: | |
1350 | { | |
1351 | u8 val = cdb[1] & 0xE0; | |
1352 | cdb[3] = (u8)(start_blk & 0xff); | |
1353 | cdb[2] = (u8)((start_blk >> 8) & 0xff); | |
1354 | cdb[1] = val | ((u8)(start_blk >> 16) & 0x1f); | |
1355 | break; | |
1356 | } | |
1357 | case 10: | |
1358 | cdb[5] = (u8)(start_blk & 0xff); | |
1359 | cdb[4] = (u8)((start_blk >> 8) & 0xff); | |
1360 | cdb[3] = (u8)((start_blk >> 16) & 0xff); | |
1361 | cdb[2] = (u8)((start_blk >> 24) & 0xff); | |
1362 | break; | |
1363 | case 12: | |
1364 | cdb[5] = (u8)(start_blk & 0xff); | |
1365 | cdb[4] = (u8)((start_blk >> 8) & 0xff); | |
1366 | cdb[3] = (u8)((start_blk >> 16) & 0xff); | |
1367 | cdb[2] = (u8)((start_blk >> 24) & 0xff); | |
1368 | break; | |
1369 | case 16: | |
1370 | cdb[9] = (u8)(start_blk & 0xff); | |
1371 | cdb[8] = (u8)((start_blk >> 8) & 0xff); | |
1372 | cdb[7] = (u8)((start_blk >> 16) & 0xff); | |
1373 | cdb[6] = (u8)((start_blk >> 24) & 0xff); | |
1374 | cdb[5] = (u8)((start_blk >> 32) & 0xff); | |
1375 | cdb[4] = (u8)((start_blk >> 40) & 0xff); | |
1376 | cdb[3] = (u8)((start_blk >> 48) & 0xff); | |
1377 | cdb[2] = (u8)((start_blk >> 56) & 0xff); | |
1378 | break; | |
1379 | } | |
1380 | } | |
1381 | } | |
1382 | ||
1383 | /** | |
1384 | * megasas_build_ldio_fusion - Prepares IOs to devices | |
1385 | * @instance: Adapter soft state | |
1386 | * @scp: SCSI command | |
1387 | * @cmd: Command to be prepared | |
1388 | * | |
1389 | * Prepares the io_request and chain elements (sg_frame) for IO | |
1390 | * The IO can be for PD (Fast Path) or LD | |
1391 | */ | |
1392 | void | |
1393 | megasas_build_ldio_fusion(struct megasas_instance *instance, | |
1394 | struct scsi_cmnd *scp, | |
1395 | struct megasas_cmd_fusion *cmd) | |
1396 | { | |
1397 | u8 fp_possible; | |
f9eff815 | 1398 | u32 start_lba_lo, start_lba_hi, device_id, datalength = 0; |
9c915a8c AR |
1399 | struct MPI2_RAID_SCSI_IO_REQUEST *io_request; |
1400 | union MEGASAS_REQUEST_DESCRIPTOR_UNION *req_desc; | |
1401 | struct IO_REQUEST_INFO io_info; | |
1402 | struct fusion_context *fusion; | |
1403 | struct MR_FW_RAID_MAP_ALL *local_map_ptr; | |
21c9e160 | 1404 | u8 *raidLUN; |
9c915a8c AR |
1405 | |
1406 | device_id = MEGASAS_DEV_INDEX(instance, scp); | |
1407 | ||
1408 | fusion = instance->ctrl_context; | |
1409 | ||
1410 | io_request = cmd->io_request; | |
94cd65dd | 1411 | io_request->RaidContext.VirtualDiskTgtId = cpu_to_le16(device_id); |
9c915a8c AR |
1412 | io_request->RaidContext.status = 0; |
1413 | io_request->RaidContext.exStatus = 0; | |
1414 | ||
1415 | req_desc = (union MEGASAS_REQUEST_DESCRIPTOR_UNION *)cmd->request_desc; | |
1416 | ||
1417 | start_lba_lo = 0; | |
1418 | start_lba_hi = 0; | |
1419 | fp_possible = 0; | |
1420 | ||
1421 | /* | |
1422 | * 6-byte READ(0x08) or WRITE(0x0A) cdb | |
1423 | */ | |
1424 | if (scp->cmd_len == 6) { | |
f9eff815 | 1425 | datalength = (u32) scp->cmnd[4]; |
9c915a8c AR |
1426 | start_lba_lo = ((u32) scp->cmnd[1] << 16) | |
1427 | ((u32) scp->cmnd[2] << 8) | (u32) scp->cmnd[3]; | |
1428 | ||
1429 | start_lba_lo &= 0x1FFFFF; | |
1430 | } | |
1431 | ||
1432 | /* | |
1433 | * 10-byte READ(0x28) or WRITE(0x2A) cdb | |
1434 | */ | |
1435 | else if (scp->cmd_len == 10) { | |
f9eff815 | 1436 | datalength = (u32) scp->cmnd[8] | |
9c915a8c AR |
1437 | ((u32) scp->cmnd[7] << 8); |
1438 | start_lba_lo = ((u32) scp->cmnd[2] << 24) | | |
1439 | ((u32) scp->cmnd[3] << 16) | | |
1440 | ((u32) scp->cmnd[4] << 8) | (u32) scp->cmnd[5]; | |
1441 | } | |
1442 | ||
1443 | /* | |
1444 | * 12-byte READ(0xA8) or WRITE(0xAA) cdb | |
1445 | */ | |
1446 | else if (scp->cmd_len == 12) { | |
f9eff815 | 1447 | datalength = ((u32) scp->cmnd[6] << 24) | |
9c915a8c AR |
1448 | ((u32) scp->cmnd[7] << 16) | |
1449 | ((u32) scp->cmnd[8] << 8) | (u32) scp->cmnd[9]; | |
1450 | start_lba_lo = ((u32) scp->cmnd[2] << 24) | | |
1451 | ((u32) scp->cmnd[3] << 16) | | |
1452 | ((u32) scp->cmnd[4] << 8) | (u32) scp->cmnd[5]; | |
1453 | } | |
1454 | ||
1455 | /* | |
1456 | * 16-byte READ(0x88) or WRITE(0x8A) cdb | |
1457 | */ | |
1458 | else if (scp->cmd_len == 16) { | |
f9eff815 | 1459 | datalength = ((u32) scp->cmnd[10] << 24) | |
9c915a8c AR |
1460 | ((u32) scp->cmnd[11] << 16) | |
1461 | ((u32) scp->cmnd[12] << 8) | (u32) scp->cmnd[13]; | |
1462 | start_lba_lo = ((u32) scp->cmnd[6] << 24) | | |
1463 | ((u32) scp->cmnd[7] << 16) | | |
1464 | ((u32) scp->cmnd[8] << 8) | (u32) scp->cmnd[9]; | |
1465 | ||
1466 | start_lba_hi = ((u32) scp->cmnd[2] << 24) | | |
1467 | ((u32) scp->cmnd[3] << 16) | | |
1468 | ((u32) scp->cmnd[4] << 8) | (u32) scp->cmnd[5]; | |
1469 | } | |
1470 | ||
1471 | memset(&io_info, 0, sizeof(struct IO_REQUEST_INFO)); | |
1472 | io_info.ldStartBlock = ((u64)start_lba_hi << 32) | start_lba_lo; | |
f9eff815 | 1473 | io_info.numBlocks = datalength; |
9c915a8c | 1474 | io_info.ldTgtId = device_id; |
94cd65dd | 1475 | io_request->DataLength = cpu_to_le32(scsi_bufflen(scp)); |
9c915a8c AR |
1476 | |
1477 | if (scp->sc_data_direction == PCI_DMA_FROMDEVICE) | |
1478 | io_info.isRead = 1; | |
1479 | ||
1480 | local_map_ptr = fusion->ld_map[(instance->map_id & 1)]; | |
1481 | ||
1482 | if ((MR_TargetIdToLdGet(device_id, local_map_ptr) >= | |
1483 | MAX_LOGICAL_DRIVES) || (!fusion->fast_path_io)) { | |
1484 | io_request->RaidContext.regLockFlags = 0; | |
1485 | fp_possible = 0; | |
1486 | } else { | |
36807e67 AR |
1487 | if (MR_BuildRaidContext(instance, &io_info, |
1488 | &io_request->RaidContext, | |
21c9e160 | 1489 | local_map_ptr, &raidLUN)) |
9c915a8c AR |
1490 | fp_possible = io_info.fpOkForIo; |
1491 | } | |
1492 | ||
c8e858fe AR |
1493 | /* Use smp_processor_id() for now until cmd->request->cpu is CPU |
1494 | id by default, not CPU group id, otherwise all MSI-X queues won't | |
1495 | be utilized */ | |
1496 | cmd->request_desc->SCSIIO.MSIxIndex = instance->msix_vectors ? | |
1497 | smp_processor_id() % instance->msix_vectors : 0; | |
1498 | ||
9c915a8c AR |
1499 | if (fp_possible) { |
1500 | megasas_set_pd_lba(io_request, scp->cmd_len, &io_info, scp, | |
1501 | local_map_ptr, start_lba_lo); | |
9c915a8c AR |
1502 | io_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST; |
1503 | cmd->request_desc->SCSIIO.RequestFlags = | |
1504 | (MPI2_REQ_DESCRIPT_FLAGS_HIGH_PRIORITY | |
1505 | << MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT); | |
21d3c710 SS |
1506 | if ((instance->pdev->device == PCI_DEVICE_ID_LSI_INVADER) || |
1507 | (instance->pdev->device == PCI_DEVICE_ID_LSI_FURY)) { | |
36807e67 AR |
1508 | if (io_request->RaidContext.regLockFlags == |
1509 | REGION_TYPE_UNUSED) | |
1510 | cmd->request_desc->SCSIIO.RequestFlags = | |
1511 | (MEGASAS_REQ_DESCRIPT_FLAGS_NO_LOCK << | |
1512 | MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT); | |
1513 | io_request->RaidContext.Type = MPI2_TYPE_CUDA; | |
1514 | io_request->RaidContext.nseg = 0x1; | |
94cd65dd | 1515 | io_request->IoFlags |= cpu_to_le16(MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH); |
36807e67 AR |
1516 | io_request->RaidContext.regLockFlags |= |
1517 | (MR_RL_FLAGS_GRANT_DESTINATION_CUDA | | |
1518 | MR_RL_FLAGS_SEQ_NUM_ENABLE); | |
1519 | } | |
9c915a8c AR |
1520 | if ((fusion->load_balance_info[device_id].loadBalanceFlag) && |
1521 | (io_info.isRead)) { | |
1522 | io_info.devHandle = | |
1523 | get_updated_dev_handle( | |
1524 | &fusion->load_balance_info[device_id], | |
1525 | &io_info); | |
1526 | scp->SCp.Status |= MEGASAS_LOAD_BALANCE_FLAG; | |
1527 | } else | |
1528 | scp->SCp.Status &= ~MEGASAS_LOAD_BALANCE_FLAG; | |
1529 | cmd->request_desc->SCSIIO.DevHandle = io_info.devHandle; | |
1530 | io_request->DevHandle = io_info.devHandle; | |
21c9e160 AR |
1531 | /* populate the LUN field */ |
1532 | memcpy(io_request->LUN, raidLUN, 8); | |
9c915a8c AR |
1533 | } else { |
1534 | io_request->RaidContext.timeoutValue = | |
94cd65dd | 1535 | cpu_to_le16(local_map_ptr->raidMap.fpPdIoTimeoutSec); |
9c915a8c AR |
1536 | cmd->request_desc->SCSIIO.RequestFlags = |
1537 | (MEGASAS_REQ_DESCRIPT_FLAGS_LD_IO | |
1538 | << MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT); | |
21d3c710 SS |
1539 | if ((instance->pdev->device == PCI_DEVICE_ID_LSI_INVADER) || |
1540 | (instance->pdev->device == PCI_DEVICE_ID_LSI_FURY)) { | |
36807e67 AR |
1541 | if (io_request->RaidContext.regLockFlags == |
1542 | REGION_TYPE_UNUSED) | |
1543 | cmd->request_desc->SCSIIO.RequestFlags = | |
1544 | (MEGASAS_REQ_DESCRIPT_FLAGS_NO_LOCK << | |
1545 | MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT); | |
1546 | io_request->RaidContext.Type = MPI2_TYPE_CUDA; | |
1547 | io_request->RaidContext.regLockFlags |= | |
1548 | (MR_RL_FLAGS_GRANT_DESTINATION_CPU0 | | |
1549 | MR_RL_FLAGS_SEQ_NUM_ENABLE); | |
1550 | io_request->RaidContext.nseg = 0x1; | |
1551 | } | |
1552 | io_request->Function = MEGASAS_MPI2_FUNCTION_LD_IO_REQUEST; | |
94cd65dd | 1553 | io_request->DevHandle = cpu_to_le16(device_id); |
9c915a8c AR |
1554 | } /* Not FP */ |
1555 | } | |
1556 | ||
1557 | /** | |
1558 | * megasas_build_dcdb_fusion - Prepares IOs to devices | |
1559 | * @instance: Adapter soft state | |
1560 | * @scp: SCSI command | |
1561 | * @cmd: Command to be prepared | |
1562 | * | |
1563 | * Prepares the io_request frame for non-io cmds | |
1564 | */ | |
1565 | static void | |
1566 | megasas_build_dcdb_fusion(struct megasas_instance *instance, | |
1567 | struct scsi_cmnd *scmd, | |
1568 | struct megasas_cmd_fusion *cmd) | |
1569 | { | |
1570 | u32 device_id; | |
1571 | struct MPI2_RAID_SCSI_IO_REQUEST *io_request; | |
1572 | u16 pd_index = 0; | |
1573 | struct MR_FW_RAID_MAP_ALL *local_map_ptr; | |
1574 | struct fusion_context *fusion = instance->ctrl_context; | |
21c9e160 AR |
1575 | u8 span, physArm; |
1576 | u16 devHandle; | |
1577 | u32 ld, arRef, pd; | |
1578 | struct MR_LD_RAID *raid; | |
1579 | struct RAID_CONTEXT *pRAID_Context; | |
9c915a8c AR |
1580 | |
1581 | io_request = cmd->io_request; | |
1582 | device_id = MEGASAS_DEV_INDEX(instance, scmd); | |
1583 | pd_index = (scmd->device->channel * MEGASAS_MAX_DEV_PER_CHANNEL) | |
1584 | +scmd->device->id; | |
1585 | local_map_ptr = fusion->ld_map[(instance->map_id & 1)]; | |
1586 | ||
94cd65dd | 1587 | io_request->DataLength = cpu_to_le32(scsi_bufflen(scmd)); |
21c9e160 AR |
1588 | |
1589 | ||
9c915a8c | 1590 | /* Check if this is a system PD I/O */ |
e187df63 AR |
1591 | if (scmd->device->channel < MEGASAS_MAX_PD_CHANNELS && |
1592 | instance->pd_list[pd_index].driveState == MR_PD_STATE_SYSTEM) { | |
9c915a8c | 1593 | io_request->Function = 0; |
9c5ebd09 AR |
1594 | if (fusion->fast_path_io) |
1595 | io_request->DevHandle = | |
9c915a8c AR |
1596 | local_map_ptr->raidMap.devHndlInfo[device_id].curDevHdl; |
1597 | io_request->RaidContext.timeoutValue = | |
1598 | local_map_ptr->raidMap.fpPdIoTimeoutSec; | |
1599 | io_request->RaidContext.regLockFlags = 0; | |
1600 | io_request->RaidContext.regLockRowLBA = 0; | |
1601 | io_request->RaidContext.regLockLength = 0; | |
1602 | io_request->RaidContext.RAIDFlags = | |
1603 | MR_RAID_FLAGS_IO_SUB_TYPE_SYSTEM_PD << | |
1604 | MR_RAID_CTX_RAID_FLAGS_IO_SUB_TYPE_SHIFT; | |
5d0d908d SS |
1605 | if ((instance->pdev->device == PCI_DEVICE_ID_LSI_INVADER) || |
1606 | (instance->pdev->device == PCI_DEVICE_ID_LSI_FURY)) | |
1607 | io_request->IoFlags |= | |
1608 | MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH; | |
9c915a8c AR |
1609 | cmd->request_desc->SCSIIO.RequestFlags = |
1610 | (MPI2_REQ_DESCRIPT_FLAGS_HIGH_PRIORITY << | |
1611 | MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT); | |
8ead5816 AR |
1612 | cmd->request_desc->SCSIIO.DevHandle = |
1613 | local_map_ptr->raidMap.devHndlInfo[device_id].curDevHdl; | |
32d8745c SS |
1614 | /* |
1615 | * If the command is for the tape device, set the | |
1616 | * FP timeout to the os layer timeout value. | |
1617 | */ | |
1618 | if (scmd->device->type == TYPE_TAPE) { | |
1619 | if ((scmd->request->timeout / HZ) > 0xFFFF) | |
1620 | io_request->RaidContext.timeoutValue = | |
1621 | 0xFFFF; | |
1622 | else | |
1623 | io_request->RaidContext.timeoutValue = | |
1624 | scmd->request->timeout / HZ; | |
1625 | } | |
9c915a8c | 1626 | } else { |
21c9e160 AR |
1627 | if (scmd->device->channel < MEGASAS_MAX_PD_CHANNELS) |
1628 | goto NonFastPath; | |
1629 | ||
1630 | ld = MR_TargetIdToLdGet(device_id, local_map_ptr); | |
1631 | if ((ld >= MAX_LOGICAL_DRIVES) || (!fusion->fast_path_io)) | |
1632 | goto NonFastPath; | |
1633 | ||
1634 | raid = MR_LdRaidGet(ld, local_map_ptr); | |
1635 | ||
1636 | /* check if this LD is FP capable */ | |
1637 | if (!(raid->capability.fpNonRWCapable)) | |
1638 | /* not FP capable, send as non-FP */ | |
1639 | goto NonFastPath; | |
1640 | ||
1641 | /* get RAID_Context pointer */ | |
1642 | pRAID_Context = &io_request->RaidContext; | |
1643 | ||
1644 | /* set RAID context values */ | |
1645 | pRAID_Context->regLockFlags = REGION_TYPE_SHARED_READ; | |
1646 | pRAID_Context->timeoutValue = raid->fpIoTimeoutForLd; | |
94cd65dd | 1647 | pRAID_Context->VirtualDiskTgtId = cpu_to_le16(device_id); |
21c9e160 AR |
1648 | pRAID_Context->regLockRowLBA = 0; |
1649 | pRAID_Context->regLockLength = 0; | |
1650 | pRAID_Context->configSeqNum = raid->seqNum; | |
1651 | ||
1652 | /* get the DevHandle for the PD (since this is | |
1653 | fpNonRWCapable, this is a single disk RAID0) */ | |
1654 | span = physArm = 0; | |
1655 | arRef = MR_LdSpanArrayGet(ld, span, local_map_ptr); | |
1656 | pd = MR_ArPdGet(arRef, physArm, local_map_ptr); | |
1657 | devHandle = MR_PdDevHandleGet(pd, local_map_ptr); | |
1658 | ||
1659 | /* build request descriptor */ | |
1660 | cmd->request_desc->SCSIIO.RequestFlags = | |
1661 | (MPI2_REQ_DESCRIPT_FLAGS_HIGH_PRIORITY << | |
1662 | MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT); | |
1663 | cmd->request_desc->SCSIIO.DevHandle = devHandle; | |
1664 | ||
1665 | /* populate the LUN field */ | |
1666 | memcpy(io_request->LUN, raid->LUN, 8); | |
1667 | ||
1668 | /* build the raidScsiIO structure */ | |
1669 | io_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST; | |
1670 | io_request->DevHandle = devHandle; | |
1671 | ||
1672 | return; | |
1673 | ||
1674 | NonFastPath: | |
9c915a8c | 1675 | io_request->Function = MEGASAS_MPI2_FUNCTION_LD_IO_REQUEST; |
94cd65dd | 1676 | io_request->DevHandle = cpu_to_le16(device_id); |
9c915a8c AR |
1677 | cmd->request_desc->SCSIIO.RequestFlags = |
1678 | (MPI2_REQ_DESCRIPT_FLAGS_SCSI_IO << | |
1679 | MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT); | |
1680 | } | |
94cd65dd | 1681 | io_request->RaidContext.VirtualDiskTgtId = cpu_to_le16(device_id); |
eaa3c240 | 1682 | io_request->LUN[1] = scmd->device->lun; |
9c915a8c AR |
1683 | } |
1684 | ||
1685 | /** | |
1686 | * megasas_build_io_fusion - Prepares IOs to devices | |
1687 | * @instance: Adapter soft state | |
1688 | * @scp: SCSI command | |
1689 | * @cmd: Command to be prepared | |
1690 | * | |
1691 | * Invokes helper functions to prepare request frames | |
1692 | * and sets flags appropriate for IO/Non-IO cmd | |
1693 | */ | |
1694 | int | |
1695 | megasas_build_io_fusion(struct megasas_instance *instance, | |
1696 | struct scsi_cmnd *scp, | |
1697 | struct megasas_cmd_fusion *cmd) | |
1698 | { | |
1699 | u32 device_id, sge_count; | |
1700 | struct MPI2_RAID_SCSI_IO_REQUEST *io_request = cmd->io_request; | |
1701 | ||
1702 | device_id = MEGASAS_DEV_INDEX(instance, scp); | |
1703 | ||
1704 | /* Zero out some fields so they don't get reused */ | |
eaa3c240 | 1705 | io_request->LUN[1] = 0; |
9c915a8c AR |
1706 | io_request->CDB.EEDP32.PrimaryReferenceTag = 0; |
1707 | io_request->CDB.EEDP32.PrimaryApplicationTagMask = 0; | |
1708 | io_request->EEDPFlags = 0; | |
1709 | io_request->Control = 0; | |
1710 | io_request->EEDPBlockSize = 0; | |
36807e67 | 1711 | io_request->ChainOffset = 0; |
9c915a8c | 1712 | io_request->RaidContext.RAIDFlags = 0; |
36807e67 AR |
1713 | io_request->RaidContext.Type = 0; |
1714 | io_request->RaidContext.nseg = 0; | |
9c915a8c AR |
1715 | |
1716 | memcpy(io_request->CDB.CDB32, scp->cmnd, scp->cmd_len); | |
1717 | /* | |
1718 | * Just the CDB length,rest of the Flags are zero | |
1719 | * This will be modified for FP in build_ldio_fusion | |
1720 | */ | |
94cd65dd | 1721 | io_request->IoFlags = cpu_to_le16(scp->cmd_len); |
9c915a8c AR |
1722 | |
1723 | if (megasas_is_ldio(scp)) | |
1724 | megasas_build_ldio_fusion(instance, scp, cmd); | |
1725 | else | |
1726 | megasas_build_dcdb_fusion(instance, scp, cmd); | |
1727 | ||
1728 | /* | |
1729 | * Construct SGL | |
1730 | */ | |
1731 | ||
1732 | sge_count = | |
1733 | megasas_make_sgl_fusion(instance, scp, | |
1734 | (struct MPI25_IEEE_SGE_CHAIN64 *) | |
1735 | &io_request->SGL, cmd); | |
1736 | ||
1737 | if (sge_count > instance->max_num_sge) { | |
1738 | printk(KERN_ERR "megasas: Error. sge_count (0x%x) exceeds " | |
1739 | "max (0x%x) allowed\n", sge_count, | |
1740 | instance->max_num_sge); | |
1741 | return 1; | |
1742 | } | |
1743 | ||
1744 | io_request->RaidContext.numSGE = sge_count; | |
1745 | ||
94cd65dd | 1746 | io_request->SGLFlags = cpu_to_le16(MPI2_SGE_FLAGS_64_BIT_ADDRESSING); |
9c915a8c AR |
1747 | |
1748 | if (scp->sc_data_direction == PCI_DMA_TODEVICE) | |
94cd65dd | 1749 | io_request->Control |= cpu_to_le32(MPI2_SCSIIO_CONTROL_WRITE); |
9c915a8c | 1750 | else if (scp->sc_data_direction == PCI_DMA_FROMDEVICE) |
94cd65dd | 1751 | io_request->Control |= cpu_to_le32(MPI2_SCSIIO_CONTROL_READ); |
9c915a8c AR |
1752 | |
1753 | io_request->SGLOffset0 = | |
1754 | offsetof(struct MPI2_RAID_SCSI_IO_REQUEST, SGL) / 4; | |
1755 | ||
94cd65dd | 1756 | io_request->SenseBufferLowAddress = cpu_to_le32(cmd->sense_phys_addr); |
9c915a8c AR |
1757 | io_request->SenseBufferLength = SCSI_SENSE_BUFFERSIZE; |
1758 | ||
1759 | cmd->scmd = scp; | |
1760 | scp->SCp.ptr = (char *)cmd; | |
1761 | ||
1762 | return 0; | |
1763 | } | |
1764 | ||
1765 | union MEGASAS_REQUEST_DESCRIPTOR_UNION * | |
1766 | megasas_get_request_descriptor(struct megasas_instance *instance, u16 index) | |
1767 | { | |
1768 | u8 *p; | |
1769 | struct fusion_context *fusion; | |
1770 | ||
1771 | if (index >= instance->max_fw_cmds) { | |
1772 | printk(KERN_ERR "megasas: Invalid SMID (0x%x)request for " | |
1773 | "descriptor\n", index); | |
1774 | return NULL; | |
1775 | } | |
1776 | fusion = instance->ctrl_context; | |
1777 | p = fusion->req_frames_desc | |
1778 | +sizeof(union MEGASAS_REQUEST_DESCRIPTOR_UNION) *index; | |
1779 | ||
1780 | return (union MEGASAS_REQUEST_DESCRIPTOR_UNION *)p; | |
1781 | } | |
1782 | ||
1783 | /** | |
1784 | * megasas_build_and_issue_cmd_fusion -Main routine for building and | |
1785 | * issuing non IOCTL cmd | |
1786 | * @instance: Adapter soft state | |
1787 | * @scmd: pointer to scsi cmd from OS | |
1788 | */ | |
1789 | static u32 | |
1790 | megasas_build_and_issue_cmd_fusion(struct megasas_instance *instance, | |
1791 | struct scsi_cmnd *scmd) | |
1792 | { | |
1793 | struct megasas_cmd_fusion *cmd; | |
1794 | union MEGASAS_REQUEST_DESCRIPTOR_UNION *req_desc; | |
1795 | u32 index; | |
1796 | struct fusion_context *fusion; | |
1797 | ||
1798 | fusion = instance->ctrl_context; | |
1799 | ||
1800 | cmd = megasas_get_cmd_fusion(instance); | |
1801 | if (!cmd) | |
1802 | return SCSI_MLQUEUE_HOST_BUSY; | |
1803 | ||
1804 | index = cmd->index; | |
1805 | ||
1806 | req_desc = megasas_get_request_descriptor(instance, index-1); | |
1807 | if (!req_desc) | |
1808 | return 1; | |
1809 | ||
1810 | req_desc->Words = 0; | |
1811 | cmd->request_desc = req_desc; | |
9c915a8c AR |
1812 | |
1813 | if (megasas_build_io_fusion(instance, scmd, cmd)) { | |
1814 | megasas_return_cmd_fusion(instance, cmd); | |
1815 | printk(KERN_ERR "megasas: Error building command.\n"); | |
1816 | cmd->request_desc = NULL; | |
1817 | return 1; | |
1818 | } | |
1819 | ||
1820 | req_desc = cmd->request_desc; | |
94cd65dd | 1821 | req_desc->SCSIIO.SMID = cpu_to_le16(index); |
9c915a8c AR |
1822 | |
1823 | if (cmd->io_request->ChainOffset != 0 && | |
1824 | cmd->io_request->ChainOffset != 0xF) | |
1825 | printk(KERN_ERR "megasas: The chain offset value is not " | |
1826 | "correct : %x\n", cmd->io_request->ChainOffset); | |
1827 | ||
1828 | /* | |
1829 | * Issue the command to the FW | |
1830 | */ | |
1831 | atomic_inc(&instance->fw_outstanding); | |
1832 | ||
1833 | instance->instancet->fire_cmd(instance, | |
1834 | req_desc->u.low, req_desc->u.high, | |
1835 | instance->reg_set); | |
1836 | ||
1837 | return 0; | |
1838 | } | |
1839 | ||
1840 | /** | |
1841 | * complete_cmd_fusion - Completes command | |
1842 | * @instance: Adapter soft state | |
1843 | * Completes all commands that is in reply descriptor queue | |
1844 | */ | |
1845 | int | |
c8e858fe | 1846 | complete_cmd_fusion(struct megasas_instance *instance, u32 MSIxIndex) |
9c915a8c AR |
1847 | { |
1848 | union MPI2_REPLY_DESCRIPTORS_UNION *desc; | |
1849 | struct MPI2_SCSI_IO_SUCCESS_REPLY_DESCRIPTOR *reply_desc; | |
1850 | struct MPI2_RAID_SCSI_IO_REQUEST *scsi_io_req; | |
1851 | struct fusion_context *fusion; | |
1852 | struct megasas_cmd *cmd_mfi; | |
1853 | struct megasas_cmd_fusion *cmd_fusion; | |
1854 | u16 smid, num_completed; | |
1855 | u8 reply_descript_type, arm; | |
1856 | u32 status, extStatus, device_id; | |
1857 | union desc_value d_val; | |
1858 | struct LD_LOAD_BALANCE_INFO *lbinfo; | |
1859 | ||
1860 | fusion = instance->ctrl_context; | |
1861 | ||
1862 | if (instance->adprecovery == MEGASAS_HW_CRITICAL_ERROR) | |
1863 | return IRQ_HANDLED; | |
1864 | ||
1865 | desc = fusion->reply_frames_desc; | |
c8e858fe AR |
1866 | desc += ((MSIxIndex * fusion->reply_alloc_sz)/ |
1867 | sizeof(union MPI2_REPLY_DESCRIPTORS_UNION)) + | |
1868 | fusion->last_reply_idx[MSIxIndex]; | |
9c915a8c AR |
1869 | |
1870 | reply_desc = (struct MPI2_SCSI_IO_SUCCESS_REPLY_DESCRIPTOR *)desc; | |
1871 | ||
1872 | d_val.word = desc->Words; | |
1873 | ||
1874 | reply_descript_type = reply_desc->ReplyFlags & | |
1875 | MPI2_RPY_DESCRIPT_FLAGS_TYPE_MASK; | |
1876 | ||
1877 | if (reply_descript_type == MPI2_RPY_DESCRIPT_FLAGS_UNUSED) | |
1878 | return IRQ_NONE; | |
1879 | ||
9c915a8c AR |
1880 | num_completed = 0; |
1881 | ||
1882 | while ((d_val.u.low != UINT_MAX) && (d_val.u.high != UINT_MAX)) { | |
94cd65dd | 1883 | smid = le16_to_cpu(reply_desc->SMID); |
9c915a8c AR |
1884 | |
1885 | cmd_fusion = fusion->cmd_list[smid - 1]; | |
1886 | ||
1887 | scsi_io_req = | |
1888 | (struct MPI2_RAID_SCSI_IO_REQUEST *) | |
1889 | cmd_fusion->io_request; | |
1890 | ||
1891 | if (cmd_fusion->scmd) | |
1892 | cmd_fusion->scmd->SCp.ptr = NULL; | |
1893 | ||
1894 | status = scsi_io_req->RaidContext.status; | |
1895 | extStatus = scsi_io_req->RaidContext.exStatus; | |
1896 | ||
1897 | switch (scsi_io_req->Function) { | |
1898 | case MPI2_FUNCTION_SCSI_IO_REQUEST: /*Fast Path IO.*/ | |
1899 | /* Update load balancing info */ | |
1900 | device_id = MEGASAS_DEV_INDEX(instance, | |
1901 | cmd_fusion->scmd); | |
1902 | lbinfo = &fusion->load_balance_info[device_id]; | |
1903 | if (cmd_fusion->scmd->SCp.Status & | |
1904 | MEGASAS_LOAD_BALANCE_FLAG) { | |
1905 | arm = lbinfo->raid1DevHandle[0] == | |
1906 | cmd_fusion->io_request->DevHandle ? 0 : | |
1907 | 1; | |
1908 | atomic_dec(&lbinfo->scsi_pending_cmds[arm]); | |
1909 | cmd_fusion->scmd->SCp.Status &= | |
1910 | ~MEGASAS_LOAD_BALANCE_FLAG; | |
1911 | } | |
1912 | if (reply_descript_type == | |
1913 | MPI2_RPY_DESCRIPT_FLAGS_SCSI_IO_SUCCESS) { | |
1914 | if (megasas_dbg_lvl == 5) | |
1915 | printk(KERN_ERR "\nmegasas: FAST Path " | |
1916 | "IO Success\n"); | |
1917 | } | |
1918 | /* Fall thru and complete IO */ | |
1919 | case MEGASAS_MPI2_FUNCTION_LD_IO_REQUEST: /* LD-IO Path */ | |
1920 | /* Map the FW Cmd Status */ | |
1921 | map_cmd_status(cmd_fusion, status, extStatus); | |
1922 | scsi_dma_unmap(cmd_fusion->scmd); | |
1923 | cmd_fusion->scmd->scsi_done(cmd_fusion->scmd); | |
1924 | scsi_io_req->RaidContext.status = 0; | |
1925 | scsi_io_req->RaidContext.exStatus = 0; | |
1926 | megasas_return_cmd_fusion(instance, cmd_fusion); | |
1927 | atomic_dec(&instance->fw_outstanding); | |
1928 | ||
1929 | break; | |
1930 | case MEGASAS_MPI2_FUNCTION_PASSTHRU_IO_REQUEST: /*MFI command */ | |
1931 | cmd_mfi = instance->cmd_list[cmd_fusion->sync_cmd_idx]; | |
1932 | megasas_complete_cmd(instance, cmd_mfi, DID_OK); | |
1933 | cmd_fusion->flags = 0; | |
1934 | megasas_return_cmd_fusion(instance, cmd_fusion); | |
1935 | ||
1936 | break; | |
1937 | } | |
1938 | ||
c8e858fe AR |
1939 | fusion->last_reply_idx[MSIxIndex]++; |
1940 | if (fusion->last_reply_idx[MSIxIndex] >= | |
1941 | fusion->reply_q_depth) | |
1942 | fusion->last_reply_idx[MSIxIndex] = 0; | |
9c915a8c AR |
1943 | |
1944 | desc->Words = ULLONG_MAX; | |
1945 | num_completed++; | |
1946 | ||
1947 | /* Get the next reply descriptor */ | |
c8e858fe AR |
1948 | if (!fusion->last_reply_idx[MSIxIndex]) |
1949 | desc = fusion->reply_frames_desc + | |
1950 | ((MSIxIndex * fusion->reply_alloc_sz)/ | |
1951 | sizeof(union MPI2_REPLY_DESCRIPTORS_UNION)); | |
9c915a8c AR |
1952 | else |
1953 | desc++; | |
1954 | ||
1955 | reply_desc = | |
1956 | (struct MPI2_SCSI_IO_SUCCESS_REPLY_DESCRIPTOR *)desc; | |
1957 | ||
1958 | d_val.word = desc->Words; | |
1959 | ||
1960 | reply_descript_type = reply_desc->ReplyFlags & | |
1961 | MPI2_RPY_DESCRIPT_FLAGS_TYPE_MASK; | |
1962 | ||
1963 | if (reply_descript_type == MPI2_RPY_DESCRIPT_FLAGS_UNUSED) | |
1964 | break; | |
1965 | } | |
1966 | ||
1967 | if (!num_completed) | |
1968 | return IRQ_NONE; | |
1969 | ||
1970 | wmb(); | |
d46a3ad6 SS |
1971 | if ((instance->pdev->device == PCI_DEVICE_ID_LSI_INVADER) || |
1972 | (instance->pdev->device == PCI_DEVICE_ID_LSI_FURY)) | |
1973 | writel(((MSIxIndex & 0x7) << 24) | | |
1974 | fusion->last_reply_idx[MSIxIndex], | |
1975 | instance->reply_post_host_index_addr[MSIxIndex/8]); | |
1976 | else | |
1977 | writel((MSIxIndex << 24) | | |
1978 | fusion->last_reply_idx[MSIxIndex], | |
1979 | instance->reply_post_host_index_addr[0]); | |
53ef2bbd | 1980 | megasas_check_and_restore_queue_depth(instance); |
9c915a8c AR |
1981 | return IRQ_HANDLED; |
1982 | } | |
1983 | ||
1984 | /** | |
1985 | * megasas_complete_cmd_dpc_fusion - Completes command | |
1986 | * @instance: Adapter soft state | |
1987 | * | |
1988 | * Tasklet to complete cmds | |
1989 | */ | |
1990 | void | |
1991 | megasas_complete_cmd_dpc_fusion(unsigned long instance_addr) | |
1992 | { | |
1993 | struct megasas_instance *instance = | |
1994 | (struct megasas_instance *)instance_addr; | |
1995 | unsigned long flags; | |
c8e858fe AR |
1996 | u32 count, MSIxIndex; |
1997 | ||
1998 | count = instance->msix_vectors > 0 ? instance->msix_vectors : 1; | |
9c915a8c AR |
1999 | |
2000 | /* If we have already declared adapter dead, donot complete cmds */ | |
2001 | spin_lock_irqsave(&instance->hba_lock, flags); | |
2002 | if (instance->adprecovery == MEGASAS_HW_CRITICAL_ERROR) { | |
2003 | spin_unlock_irqrestore(&instance->hba_lock, flags); | |
2004 | return; | |
2005 | } | |
2006 | spin_unlock_irqrestore(&instance->hba_lock, flags); | |
2007 | ||
c8e858fe AR |
2008 | for (MSIxIndex = 0 ; MSIxIndex < count; MSIxIndex++) |
2009 | complete_cmd_fusion(instance, MSIxIndex); | |
9c915a8c AR |
2010 | } |
2011 | ||
2012 | /** | |
2013 | * megasas_isr_fusion - isr entry point | |
2014 | */ | |
2015 | irqreturn_t megasas_isr_fusion(int irq, void *devp) | |
2016 | { | |
c8e858fe AR |
2017 | struct megasas_irq_context *irq_context = devp; |
2018 | struct megasas_instance *instance = irq_context->instance; | |
9c915a8c AR |
2019 | u32 mfiStatus, fw_state; |
2020 | ||
d46a3ad6 SS |
2021 | if (instance->mask_interrupts) |
2022 | return IRQ_NONE; | |
2023 | ||
c8e858fe | 2024 | if (!instance->msix_vectors) { |
9c915a8c AR |
2025 | mfiStatus = instance->instancet->clear_intr(instance->reg_set); |
2026 | if (!mfiStatus) | |
2027 | return IRQ_NONE; | |
2028 | } | |
2029 | ||
2030 | /* If we are resetting, bail */ | |
6497b247 AR |
2031 | if (test_bit(MEGASAS_FUSION_IN_RESET, &instance->reset_flags)) { |
2032 | instance->instancet->clear_intr(instance->reg_set); | |
9c915a8c | 2033 | return IRQ_HANDLED; |
6497b247 | 2034 | } |
9c915a8c | 2035 | |
c8e858fe | 2036 | if (!complete_cmd_fusion(instance, irq_context->MSIxIndex)) { |
6497b247 | 2037 | instance->instancet->clear_intr(instance->reg_set); |
9c915a8c AR |
2038 | /* If we didn't complete any commands, check for FW fault */ |
2039 | fw_state = instance->instancet->read_fw_status_reg( | |
2040 | instance->reg_set) & MFI_STATE_MASK; | |
2041 | if (fw_state == MFI_STATE_FAULT) | |
2042 | schedule_work(&instance->work_init); | |
2043 | } | |
2044 | ||
2045 | return IRQ_HANDLED; | |
2046 | } | |
2047 | ||
2048 | /** | |
2049 | * build_mpt_mfi_pass_thru - builds a cmd fo MFI Pass thru | |
2050 | * @instance: Adapter soft state | |
2051 | * mfi_cmd: megasas_cmd pointer | |
2052 | * | |
2053 | */ | |
2054 | u8 | |
2055 | build_mpt_mfi_pass_thru(struct megasas_instance *instance, | |
2056 | struct megasas_cmd *mfi_cmd) | |
2057 | { | |
2058 | struct MPI25_IEEE_SGE_CHAIN64 *mpi25_ieee_chain; | |
2059 | struct MPI2_RAID_SCSI_IO_REQUEST *io_req; | |
2060 | struct megasas_cmd_fusion *cmd; | |
2061 | struct fusion_context *fusion; | |
2062 | struct megasas_header *frame_hdr = &mfi_cmd->frame->hdr; | |
2063 | ||
2064 | cmd = megasas_get_cmd_fusion(instance); | |
2065 | if (!cmd) | |
2066 | return 1; | |
2067 | ||
2068 | /* Save the smid. To be used for returning the cmd */ | |
2069 | mfi_cmd->context.smid = cmd->index; | |
2070 | ||
2071 | cmd->sync_cmd_idx = mfi_cmd->index; | |
2072 | ||
2073 | /* | |
2074 | * For cmds where the flag is set, store the flag and check | |
2075 | * on completion. For cmds with this flag, don't call | |
2076 | * megasas_complete_cmd | |
2077 | */ | |
2078 | ||
2079 | if (frame_hdr->flags & MFI_FRAME_DONT_POST_IN_REPLY_QUEUE) | |
2080 | cmd->flags = MFI_FRAME_DONT_POST_IN_REPLY_QUEUE; | |
2081 | ||
2082 | fusion = instance->ctrl_context; | |
2083 | io_req = cmd->io_request; | |
36807e67 | 2084 | |
21d3c710 SS |
2085 | if ((instance->pdev->device == PCI_DEVICE_ID_LSI_INVADER) || |
2086 | (instance->pdev->device == PCI_DEVICE_ID_LSI_FURY)) { | |
36807e67 AR |
2087 | struct MPI25_IEEE_SGE_CHAIN64 *sgl_ptr_end = |
2088 | (struct MPI25_IEEE_SGE_CHAIN64 *)&io_req->SGL; | |
2089 | sgl_ptr_end += fusion->max_sge_in_main_msg - 1; | |
2090 | sgl_ptr_end->Flags = 0; | |
2091 | } | |
2092 | ||
9c915a8c AR |
2093 | mpi25_ieee_chain = |
2094 | (struct MPI25_IEEE_SGE_CHAIN64 *)&io_req->SGL.IeeeChain; | |
2095 | ||
2096 | io_req->Function = MEGASAS_MPI2_FUNCTION_PASSTHRU_IO_REQUEST; | |
2097 | io_req->SGLOffset0 = offsetof(struct MPI2_RAID_SCSI_IO_REQUEST, | |
2098 | SGL) / 4; | |
2099 | io_req->ChainOffset = fusion->chain_offset_mfi_pthru; | |
2100 | ||
94cd65dd | 2101 | mpi25_ieee_chain->Address = cpu_to_le64(mfi_cmd->frame_phys_addr); |
9c915a8c AR |
2102 | |
2103 | mpi25_ieee_chain->Flags = IEEE_SGE_FLAGS_CHAIN_ELEMENT | | |
2104 | MPI2_IEEE_SGE_FLAGS_IOCPLBNTA_ADDR; | |
2105 | ||
94cd65dd | 2106 | mpi25_ieee_chain->Length = cpu_to_le32(MEGASAS_MAX_SZ_CHAIN_FRAME); |
9c915a8c AR |
2107 | |
2108 | return 0; | |
2109 | } | |
2110 | ||
2111 | /** | |
2112 | * build_mpt_cmd - Calls helper function to build a cmd MFI Pass thru cmd | |
2113 | * @instance: Adapter soft state | |
2114 | * @cmd: mfi cmd to build | |
2115 | * | |
2116 | */ | |
2117 | union MEGASAS_REQUEST_DESCRIPTOR_UNION * | |
2118 | build_mpt_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd) | |
2119 | { | |
2120 | union MEGASAS_REQUEST_DESCRIPTOR_UNION *req_desc; | |
2121 | u16 index; | |
2122 | ||
2123 | if (build_mpt_mfi_pass_thru(instance, cmd)) { | |
2124 | printk(KERN_ERR "Couldn't build MFI pass thru cmd\n"); | |
2125 | return NULL; | |
2126 | } | |
2127 | ||
2128 | index = cmd->context.smid; | |
2129 | ||
2130 | req_desc = megasas_get_request_descriptor(instance, index - 1); | |
2131 | ||
2132 | if (!req_desc) | |
2133 | return NULL; | |
2134 | ||
2135 | req_desc->Words = 0; | |
2136 | req_desc->SCSIIO.RequestFlags = (MPI2_REQ_DESCRIPT_FLAGS_SCSI_IO << | |
2137 | MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT); | |
2138 | ||
94cd65dd | 2139 | req_desc->SCSIIO.SMID = cpu_to_le16(index); |
9c915a8c AR |
2140 | |
2141 | return req_desc; | |
2142 | } | |
2143 | ||
2144 | /** | |
2145 | * megasas_issue_dcmd_fusion - Issues a MFI Pass thru cmd | |
2146 | * @instance: Adapter soft state | |
2147 | * @cmd: mfi cmd pointer | |
2148 | * | |
2149 | */ | |
2150 | void | |
2151 | megasas_issue_dcmd_fusion(struct megasas_instance *instance, | |
2152 | struct megasas_cmd *cmd) | |
2153 | { | |
2154 | union MEGASAS_REQUEST_DESCRIPTOR_UNION *req_desc; | |
9c915a8c AR |
2155 | |
2156 | req_desc = build_mpt_cmd(instance, cmd); | |
2157 | if (!req_desc) { | |
2158 | printk(KERN_ERR "Couldn't issue MFI pass thru cmd\n"); | |
2159 | return; | |
2160 | } | |
9c915a8c AR |
2161 | instance->instancet->fire_cmd(instance, req_desc->u.low, |
2162 | req_desc->u.high, instance->reg_set); | |
2163 | } | |
2164 | ||
2165 | /** | |
2166 | * megasas_release_fusion - Reverses the FW initialization | |
2167 | * @intance: Adapter soft state | |
2168 | */ | |
2169 | void | |
2170 | megasas_release_fusion(struct megasas_instance *instance) | |
2171 | { | |
2172 | megasas_free_cmds(instance); | |
2173 | megasas_free_cmds_fusion(instance); | |
2174 | ||
2175 | iounmap(instance->reg_set); | |
2176 | ||
2177 | pci_release_selected_regions(instance->pdev, instance->bar); | |
2178 | } | |
2179 | ||
2180 | /** | |
2181 | * megasas_read_fw_status_reg_fusion - returns the current FW status value | |
2182 | * @regs: MFI register set | |
2183 | */ | |
2184 | static u32 | |
2185 | megasas_read_fw_status_reg_fusion(struct megasas_register_set __iomem *regs) | |
2186 | { | |
2187 | return readl(&(regs)->outbound_scratch_pad); | |
2188 | } | |
2189 | ||
2190 | /** | |
2191 | * megasas_adp_reset_fusion - For controller reset | |
2192 | * @regs: MFI register set | |
2193 | */ | |
2194 | static int | |
2195 | megasas_adp_reset_fusion(struct megasas_instance *instance, | |
2196 | struct megasas_register_set __iomem *regs) | |
2197 | { | |
2198 | return 0; | |
2199 | } | |
2200 | ||
2201 | /** | |
2202 | * megasas_check_reset_fusion - For controller reset check | |
2203 | * @regs: MFI register set | |
2204 | */ | |
2205 | static int | |
2206 | megasas_check_reset_fusion(struct megasas_instance *instance, | |
2207 | struct megasas_register_set __iomem *regs) | |
2208 | { | |
2209 | return 0; | |
2210 | } | |
2211 | ||
2212 | /* This function waits for outstanding commands on fusion to complete */ | |
2213 | int megasas_wait_for_outstanding_fusion(struct megasas_instance *instance) | |
2214 | { | |
2215 | int i, outstanding, retval = 0; | |
c007b8b2 | 2216 | u32 fw_state; |
9c915a8c | 2217 | |
c007b8b2 | 2218 | for (i = 0; i < resetwaittime; i++) { |
9c915a8c AR |
2219 | /* Check if firmware is in fault state */ |
2220 | fw_state = instance->instancet->read_fw_status_reg( | |
2221 | instance->reg_set) & MFI_STATE_MASK; | |
2222 | if (fw_state == MFI_STATE_FAULT) { | |
2223 | printk(KERN_WARNING "megasas: Found FW in FAULT state," | |
2224 | " will reset adapter.\n"); | |
2225 | retval = 1; | |
2226 | goto out; | |
2227 | } | |
2228 | ||
2229 | outstanding = atomic_read(&instance->fw_outstanding); | |
2230 | if (!outstanding) | |
2231 | goto out; | |
2232 | ||
2233 | if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) { | |
2234 | printk(KERN_NOTICE "megasas: [%2d]waiting for %d " | |
2235 | "commands to complete\n", i, outstanding); | |
2236 | megasas_complete_cmd_dpc_fusion( | |
2237 | (unsigned long)instance); | |
2238 | } | |
2239 | msleep(1000); | |
2240 | } | |
2241 | ||
2242 | if (atomic_read(&instance->fw_outstanding)) { | |
2243 | printk("megaraid_sas: pending commands remain after waiting, " | |
2244 | "will reset adapter.\n"); | |
2245 | retval = 1; | |
2246 | } | |
2247 | out: | |
2248 | return retval; | |
2249 | } | |
2250 | ||
2251 | void megasas_reset_reply_desc(struct megasas_instance *instance) | |
2252 | { | |
c8e858fe | 2253 | int i, count; |
9c915a8c AR |
2254 | struct fusion_context *fusion; |
2255 | union MPI2_REPLY_DESCRIPTORS_UNION *reply_desc; | |
2256 | ||
2257 | fusion = instance->ctrl_context; | |
c8e858fe AR |
2258 | count = instance->msix_vectors > 0 ? instance->msix_vectors : 1; |
2259 | for (i = 0 ; i < count ; i++) | |
2260 | fusion->last_reply_idx[i] = 0; | |
9c915a8c | 2261 | reply_desc = fusion->reply_frames_desc; |
c8e858fe | 2262 | for (i = 0 ; i < fusion->reply_q_depth * count; i++, reply_desc++) |
9c915a8c AR |
2263 | reply_desc->Words = ULLONG_MAX; |
2264 | } | |
2265 | ||
2266 | /* Core fusion reset function */ | |
2267 | int megasas_reset_fusion(struct Scsi_Host *shost) | |
2268 | { | |
2269 | int retval = SUCCESS, i, j, retry = 0; | |
2270 | struct megasas_instance *instance; | |
2271 | struct megasas_cmd_fusion *cmd_fusion; | |
2272 | struct fusion_context *fusion; | |
2273 | struct megasas_cmd *cmd_mfi; | |
2274 | union MEGASAS_REQUEST_DESCRIPTOR_UNION *req_desc; | |
7e70e733 | 2275 | u32 host_diag, abs_state, status_reg, reset_adapter; |
9c915a8c AR |
2276 | |
2277 | instance = (struct megasas_instance *)shost->hostdata; | |
2278 | fusion = instance->ctrl_context; | |
2279 | ||
9c915a8c AR |
2280 | if (instance->adprecovery == MEGASAS_HW_CRITICAL_ERROR) { |
2281 | printk(KERN_WARNING "megaraid_sas: Hardware critical error, " | |
2282 | "returning FAILED.\n"); | |
d4a759a9 | 2283 | return FAILED; |
9c915a8c AR |
2284 | } |
2285 | ||
7e70e733 AR |
2286 | mutex_lock(&instance->reset_mutex); |
2287 | set_bit(MEGASAS_FUSION_IN_RESET, &instance->reset_flags); | |
2288 | instance->adprecovery = MEGASAS_ADPRESET_SM_INFAULT; | |
d46a3ad6 | 2289 | instance->instancet->disable_intr(instance); |
7e70e733 AR |
2290 | msleep(1000); |
2291 | ||
9c915a8c AR |
2292 | /* First try waiting for commands to complete */ |
2293 | if (megasas_wait_for_outstanding_fusion(instance)) { | |
2294 | printk(KERN_WARNING "megaraid_sas: resetting fusion " | |
2295 | "adapter.\n"); | |
2296 | /* Now return commands back to the OS */ | |
2297 | for (i = 0 ; i < instance->max_fw_cmds; i++) { | |
2298 | cmd_fusion = fusion->cmd_list[i]; | |
2299 | if (cmd_fusion->scmd) { | |
2300 | scsi_dma_unmap(cmd_fusion->scmd); | |
2301 | cmd_fusion->scmd->result = (DID_RESET << 16); | |
2302 | cmd_fusion->scmd->scsi_done(cmd_fusion->scmd); | |
2303 | megasas_return_cmd_fusion(instance, cmd_fusion); | |
2304 | atomic_dec(&instance->fw_outstanding); | |
2305 | } | |
2306 | } | |
2307 | ||
7e70e733 AR |
2308 | status_reg = instance->instancet->read_fw_status_reg( |
2309 | instance->reg_set); | |
2310 | abs_state = status_reg & MFI_STATE_MASK; | |
2311 | reset_adapter = status_reg & MFI_RESET_ADAPTER; | |
2312 | if (instance->disableOnlineCtrlReset || | |
2313 | (abs_state == MFI_STATE_FAULT && !reset_adapter)) { | |
9c915a8c AR |
2314 | /* Reset not supported, kill adapter */ |
2315 | printk(KERN_WARNING "megaraid_sas: Reset not supported" | |
2316 | ", killing adapter.\n"); | |
2317 | megaraid_sas_kill_hba(instance); | |
2318 | instance->adprecovery = MEGASAS_HW_CRITICAL_ERROR; | |
2319 | retval = FAILED; | |
2320 | goto out; | |
2321 | } | |
2322 | ||
2323 | /* Now try to reset the chip */ | |
2324 | for (i = 0; i < MEGASAS_FUSION_MAX_RESET_TRIES; i++) { | |
2325 | writel(MPI2_WRSEQ_FLUSH_KEY_VALUE, | |
2326 | &instance->reg_set->fusion_seq_offset); | |
2327 | writel(MPI2_WRSEQ_1ST_KEY_VALUE, | |
2328 | &instance->reg_set->fusion_seq_offset); | |
2329 | writel(MPI2_WRSEQ_2ND_KEY_VALUE, | |
2330 | &instance->reg_set->fusion_seq_offset); | |
2331 | writel(MPI2_WRSEQ_3RD_KEY_VALUE, | |
2332 | &instance->reg_set->fusion_seq_offset); | |
2333 | writel(MPI2_WRSEQ_4TH_KEY_VALUE, | |
2334 | &instance->reg_set->fusion_seq_offset); | |
2335 | writel(MPI2_WRSEQ_5TH_KEY_VALUE, | |
2336 | &instance->reg_set->fusion_seq_offset); | |
2337 | writel(MPI2_WRSEQ_6TH_KEY_VALUE, | |
2338 | &instance->reg_set->fusion_seq_offset); | |
2339 | ||
2340 | /* Check that the diag write enable (DRWE) bit is on */ | |
2341 | host_diag = readl(&instance->reg_set->fusion_host_diag); | |
7e70e733 | 2342 | retry = 0; |
9c915a8c AR |
2343 | while (!(host_diag & HOST_DIAG_WRITE_ENABLE)) { |
2344 | msleep(100); | |
2345 | host_diag = | |
2346 | readl(&instance->reg_set->fusion_host_diag); | |
2347 | if (retry++ == 100) { | |
2348 | printk(KERN_WARNING "megaraid_sas: " | |
2349 | "Host diag unlock failed!\n"); | |
2350 | break; | |
2351 | } | |
2352 | } | |
2353 | if (!(host_diag & HOST_DIAG_WRITE_ENABLE)) | |
2354 | continue; | |
2355 | ||
2356 | /* Send chip reset command */ | |
2357 | writel(host_diag | HOST_DIAG_RESET_ADAPTER, | |
2358 | &instance->reg_set->fusion_host_diag); | |
2359 | msleep(3000); | |
2360 | ||
2361 | /* Make sure reset adapter bit is cleared */ | |
2362 | host_diag = readl(&instance->reg_set->fusion_host_diag); | |
2363 | retry = 0; | |
2364 | while (host_diag & HOST_DIAG_RESET_ADAPTER) { | |
2365 | msleep(100); | |
2366 | host_diag = | |
2367 | readl(&instance->reg_set->fusion_host_diag); | |
2368 | if (retry++ == 1000) { | |
2369 | printk(KERN_WARNING "megaraid_sas: " | |
2370 | "Diag reset adapter never " | |
2371 | "cleared!\n"); | |
2372 | break; | |
2373 | } | |
2374 | } | |
2375 | if (host_diag & HOST_DIAG_RESET_ADAPTER) | |
2376 | continue; | |
2377 | ||
2378 | abs_state = | |
2379 | instance->instancet->read_fw_status_reg( | |
7e70e733 | 2380 | instance->reg_set) & MFI_STATE_MASK; |
9c915a8c AR |
2381 | retry = 0; |
2382 | ||
2383 | while ((abs_state <= MFI_STATE_FW_INIT) && | |
2384 | (retry++ < 1000)) { | |
2385 | msleep(100); | |
2386 | abs_state = | |
2387 | instance->instancet->read_fw_status_reg( | |
7e70e733 | 2388 | instance->reg_set) & MFI_STATE_MASK; |
9c915a8c AR |
2389 | } |
2390 | if (abs_state <= MFI_STATE_FW_INIT) { | |
2391 | printk(KERN_WARNING "megaraid_sas: firmware " | |
2392 | "state < MFI_STATE_FW_INIT, state = " | |
2393 | "0x%x\n", abs_state); | |
2394 | continue; | |
2395 | } | |
2396 | ||
2397 | /* Wait for FW to become ready */ | |
058a8fac | 2398 | if (megasas_transition_to_ready(instance, 1)) { |
9c915a8c AR |
2399 | printk(KERN_WARNING "megaraid_sas: Failed to " |
2400 | "transition controller to ready.\n"); | |
2401 | continue; | |
2402 | } | |
2403 | ||
2404 | megasas_reset_reply_desc(instance); | |
2405 | if (megasas_ioc_init_fusion(instance)) { | |
2406 | printk(KERN_WARNING "megaraid_sas: " | |
2407 | "megasas_ioc_init_fusion() failed!\n"); | |
2408 | continue; | |
2409 | } | |
2410 | ||
3f0e58bc AR |
2411 | clear_bit(MEGASAS_FUSION_IN_RESET, |
2412 | &instance->reset_flags); | |
d46a3ad6 | 2413 | instance->instancet->enable_intr(instance); |
9c915a8c AR |
2414 | instance->adprecovery = MEGASAS_HBA_OPERATIONAL; |
2415 | ||
2416 | /* Re-fire management commands */ | |
2417 | for (j = 0 ; j < instance->max_fw_cmds; j++) { | |
2418 | cmd_fusion = fusion->cmd_list[j]; | |
2419 | if (cmd_fusion->sync_cmd_idx != | |
2420 | (u32)ULONG_MAX) { | |
2421 | cmd_mfi = | |
2422 | instance-> | |
2423 | cmd_list[cmd_fusion->sync_cmd_idx]; | |
2424 | if (cmd_mfi->frame->dcmd.opcode == | |
2425 | MR_DCMD_LD_MAP_GET_INFO) { | |
2426 | megasas_return_cmd(instance, | |
2427 | cmd_mfi); | |
2428 | megasas_return_cmd_fusion( | |
2429 | instance, cmd_fusion); | |
2430 | } else { | |
2431 | req_desc = | |
2432 | megasas_get_request_descriptor( | |
2433 | instance, | |
2434 | cmd_mfi->context.smid | |
2435 | -1); | |
2436 | if (!req_desc) | |
2437 | printk(KERN_WARNING | |
2438 | "req_desc NULL" | |
2439 | "\n"); | |
2440 | else { | |
2441 | instance->instancet-> | |
2442 | fire_cmd(instance, | |
2443 | req_desc-> | |
2444 | u.low, | |
2445 | req_desc-> | |
2446 | u.high, | |
2447 | instance-> | |
2448 | reg_set); | |
2449 | } | |
2450 | } | |
2451 | } | |
2452 | } | |
2453 | ||
2454 | /* Reset load balance info */ | |
2455 | memset(fusion->load_balance_info, 0, | |
2456 | sizeof(struct LD_LOAD_BALANCE_INFO) | |
2457 | *MAX_LOGICAL_DRIVES); | |
2458 | ||
2459 | if (!megasas_get_map_info(instance)) | |
2460 | megasas_sync_map_info(instance); | |
2461 | ||
2462 | /* Adapter reset completed successfully */ | |
2463 | printk(KERN_WARNING "megaraid_sas: Reset " | |
2464 | "successful.\n"); | |
2465 | retval = SUCCESS; | |
2466 | goto out; | |
2467 | } | |
2468 | /* Reset failed, kill the adapter */ | |
2469 | printk(KERN_WARNING "megaraid_sas: Reset failed, killing " | |
2470 | "adapter.\n"); | |
2471 | megaraid_sas_kill_hba(instance); | |
2472 | retval = FAILED; | |
2473 | } else { | |
3f0e58bc | 2474 | clear_bit(MEGASAS_FUSION_IN_RESET, &instance->reset_flags); |
d46a3ad6 | 2475 | instance->instancet->enable_intr(instance); |
9c915a8c AR |
2476 | instance->adprecovery = MEGASAS_HBA_OPERATIONAL; |
2477 | } | |
2478 | out: | |
2479 | clear_bit(MEGASAS_FUSION_IN_RESET, &instance->reset_flags); | |
2480 | mutex_unlock(&instance->reset_mutex); | |
2481 | return retval; | |
2482 | } | |
2483 | ||
2484 | /* Fusion OCR work queue */ | |
2485 | void megasas_fusion_ocr_wq(struct work_struct *work) | |
2486 | { | |
2487 | struct megasas_instance *instance = | |
2488 | container_of(work, struct megasas_instance, work_init); | |
2489 | ||
2490 | megasas_reset_fusion(instance->host); | |
2491 | } | |
2492 | ||
2493 | struct megasas_instance_template megasas_instance_template_fusion = { | |
2494 | .fire_cmd = megasas_fire_cmd_fusion, | |
2495 | .enable_intr = megasas_enable_intr_fusion, | |
2496 | .disable_intr = megasas_disable_intr_fusion, | |
2497 | .clear_intr = megasas_clear_intr_fusion, | |
2498 | .read_fw_status_reg = megasas_read_fw_status_reg_fusion, | |
2499 | .adp_reset = megasas_adp_reset_fusion, | |
2500 | .check_reset = megasas_check_reset_fusion, | |
2501 | .service_isr = megasas_isr_fusion, | |
2502 | .tasklet = megasas_complete_cmd_dpc_fusion, | |
2503 | .init_adapter = megasas_init_adapter_fusion, | |
2504 | .build_and_issue_cmd = megasas_build_and_issue_cmd_fusion, | |
2505 | .issue_dcmd = megasas_issue_dcmd_fusion, | |
2506 | }; |