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[mirror_ubuntu-artful-kernel.git] / drivers / scsi / megaraid / megaraid_sas_base.c
1 /*
2 * Linux MegaRAID driver for SAS based RAID controllers
3 *
4 * Copyright (c) 2003-2013 LSI Corporation
5 * Copyright (c) 2013-2014 Avago Technologies
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version 2
10 * of the License, or (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
19 *
20 * Authors: Avago Technologies
21 * Sreenivas Bagalkote
22 * Sumant Patro
23 * Bo Yang
24 * Adam Radford
25 * Kashyap Desai <kashyap.desai@avagotech.com>
26 * Sumit Saxena <sumit.saxena@avagotech.com>
27 *
28 * Send feedback to: megaraidlinux.pdl@avagotech.com
29 *
30 * Mail to: Avago Technologies, 350 West Trimble Road, Building 90,
31 * San Jose, California 95131
32 */
33
34 #include <linux/kernel.h>
35 #include <linux/types.h>
36 #include <linux/pci.h>
37 #include <linux/list.h>
38 #include <linux/moduleparam.h>
39 #include <linux/module.h>
40 #include <linux/spinlock.h>
41 #include <linux/interrupt.h>
42 #include <linux/delay.h>
43 #include <linux/uio.h>
44 #include <linux/slab.h>
45 #include <linux/uaccess.h>
46 #include <asm/unaligned.h>
47 #include <linux/fs.h>
48 #include <linux/compat.h>
49 #include <linux/blkdev.h>
50 #include <linux/mutex.h>
51 #include <linux/poll.h>
52
53 #include <scsi/scsi.h>
54 #include <scsi/scsi_cmnd.h>
55 #include <scsi/scsi_device.h>
56 #include <scsi/scsi_host.h>
57 #include <scsi/scsi_tcq.h>
58 #include "megaraid_sas_fusion.h"
59 #include "megaraid_sas.h"
60
61 /*
62 * Number of sectors per IO command
63 * Will be set in megasas_init_mfi if user does not provide
64 */
65 static unsigned int max_sectors;
66 module_param_named(max_sectors, max_sectors, int, 0);
67 MODULE_PARM_DESC(max_sectors,
68 "Maximum number of sectors per IO command");
69
70 static int msix_disable;
71 module_param(msix_disable, int, S_IRUGO);
72 MODULE_PARM_DESC(msix_disable, "Disable MSI-X interrupt handling. Default: 0");
73
74 static unsigned int msix_vectors;
75 module_param(msix_vectors, int, S_IRUGO);
76 MODULE_PARM_DESC(msix_vectors, "MSI-X max vector count. Default: Set by FW");
77
78 static int allow_vf_ioctls;
79 module_param(allow_vf_ioctls, int, S_IRUGO);
80 MODULE_PARM_DESC(allow_vf_ioctls, "Allow ioctls in SR-IOV VF mode. Default: 0");
81
82 static unsigned int throttlequeuedepth = MEGASAS_THROTTLE_QUEUE_DEPTH;
83 module_param(throttlequeuedepth, int, S_IRUGO);
84 MODULE_PARM_DESC(throttlequeuedepth,
85 "Adapter queue depth when throttled due to I/O timeout. Default: 16");
86
87 unsigned int resetwaittime = MEGASAS_RESET_WAIT_TIME;
88 module_param(resetwaittime, int, S_IRUGO);
89 MODULE_PARM_DESC(resetwaittime, "Wait time in seconds after I/O timeout "
90 "before resetting adapter. Default: 180");
91
92 int smp_affinity_enable = 1;
93 module_param(smp_affinity_enable, int, S_IRUGO);
94 MODULE_PARM_DESC(smp_affinity_enable, "SMP affinity feature enable/disbale Default: enable(1)");
95
96 int rdpq_enable = 1;
97 module_param(rdpq_enable, int, S_IRUGO);
98 MODULE_PARM_DESC(rdpq_enable, " Allocate reply queue in chunks for large queue depth enable/disable Default: disable(0)");
99
100 unsigned int dual_qdepth_disable;
101 module_param(dual_qdepth_disable, int, S_IRUGO);
102 MODULE_PARM_DESC(dual_qdepth_disable, "Disable dual queue depth feature. Default: 0");
103
104 unsigned int scmd_timeout = MEGASAS_DEFAULT_CMD_TIMEOUT;
105 module_param(scmd_timeout, int, S_IRUGO);
106 MODULE_PARM_DESC(scmd_timeout, "scsi command timeout (10-90s), default 90s. See megasas_reset_timer.");
107
108 MODULE_LICENSE("GPL");
109 MODULE_VERSION(MEGASAS_VERSION);
110 MODULE_AUTHOR("megaraidlinux.pdl@avagotech.com");
111 MODULE_DESCRIPTION("Avago MegaRAID SAS Driver");
112
113 int megasas_transition_to_ready(struct megasas_instance *instance, int ocr);
114 static int megasas_get_pd_list(struct megasas_instance *instance);
115 static int megasas_ld_list_query(struct megasas_instance *instance,
116 u8 query_type);
117 static int megasas_issue_init_mfi(struct megasas_instance *instance);
118 static int megasas_register_aen(struct megasas_instance *instance,
119 u32 seq_num, u32 class_locale_word);
120 static void megasas_get_pd_info(struct megasas_instance *instance,
121 struct scsi_device *sdev);
122 static int megasas_get_target_prop(struct megasas_instance *instance,
123 struct scsi_device *sdev);
124 /*
125 * PCI ID table for all supported controllers
126 */
127 static struct pci_device_id megasas_pci_table[] = {
128
129 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1064R)},
130 /* xscale IOP */
131 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078R)},
132 /* ppc IOP */
133 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078DE)},
134 /* ppc IOP */
135 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078GEN2)},
136 /* gen2*/
137 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0079GEN2)},
138 /* gen2*/
139 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0073SKINNY)},
140 /* skinny*/
141 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0071SKINNY)},
142 /* skinny*/
143 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_VERDE_ZCR)},
144 /* xscale IOP, vega */
145 {PCI_DEVICE(PCI_VENDOR_ID_DELL, PCI_DEVICE_ID_DELL_PERC5)},
146 /* xscale IOP */
147 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FUSION)},
148 /* Fusion */
149 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_PLASMA)},
150 /* Plasma */
151 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_INVADER)},
152 /* Invader */
153 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FURY)},
154 /* Fury */
155 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_INTRUDER)},
156 /* Intruder */
157 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_INTRUDER_24)},
158 /* Intruder 24 port*/
159 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_CUTLASS_52)},
160 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_CUTLASS_53)},
161 /* VENTURA */
162 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_VENTURA)},
163 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_HARPOON)},
164 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_TOMCAT)},
165 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_VENTURA_4PORT)},
166 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_CRUSADER_4PORT)},
167 {}
168 };
169
170 MODULE_DEVICE_TABLE(pci, megasas_pci_table);
171
172 static int megasas_mgmt_majorno;
173 struct megasas_mgmt_info megasas_mgmt_info;
174 static struct fasync_struct *megasas_async_queue;
175 static DEFINE_MUTEX(megasas_async_queue_mutex);
176
177 static int megasas_poll_wait_aen;
178 static DECLARE_WAIT_QUEUE_HEAD(megasas_poll_wait);
179 static u32 support_poll_for_event;
180 u32 megasas_dbg_lvl;
181 static u32 support_device_change;
182
183 /* define lock for aen poll */
184 spinlock_t poll_aen_lock;
185
186 void
187 megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd,
188 u8 alt_status);
189 static u32
190 megasas_read_fw_status_reg_gen2(struct megasas_register_set __iomem *regs);
191 static int
192 megasas_adp_reset_gen2(struct megasas_instance *instance,
193 struct megasas_register_set __iomem *reg_set);
194 static irqreturn_t megasas_isr(int irq, void *devp);
195 static u32
196 megasas_init_adapter_mfi(struct megasas_instance *instance);
197 u32
198 megasas_build_and_issue_cmd(struct megasas_instance *instance,
199 struct scsi_cmnd *scmd);
200 static void megasas_complete_cmd_dpc(unsigned long instance_addr);
201 int
202 wait_and_poll(struct megasas_instance *instance, struct megasas_cmd *cmd,
203 int seconds);
204 void megasas_fusion_ocr_wq(struct work_struct *work);
205 static int megasas_get_ld_vf_affiliation(struct megasas_instance *instance,
206 int initial);
207
208 void
209 megasas_issue_dcmd(struct megasas_instance *instance, struct megasas_cmd *cmd)
210 {
211 instance->instancet->fire_cmd(instance,
212 cmd->frame_phys_addr, 0, instance->reg_set);
213 return;
214 }
215
216 /**
217 * megasas_get_cmd - Get a command from the free pool
218 * @instance: Adapter soft state
219 *
220 * Returns a free command from the pool
221 */
222 struct megasas_cmd *megasas_get_cmd(struct megasas_instance
223 *instance)
224 {
225 unsigned long flags;
226 struct megasas_cmd *cmd = NULL;
227
228 spin_lock_irqsave(&instance->mfi_pool_lock, flags);
229
230 if (!list_empty(&instance->cmd_pool)) {
231 cmd = list_entry((&instance->cmd_pool)->next,
232 struct megasas_cmd, list);
233 list_del_init(&cmd->list);
234 } else {
235 dev_err(&instance->pdev->dev, "Command pool empty!\n");
236 }
237
238 spin_unlock_irqrestore(&instance->mfi_pool_lock, flags);
239 return cmd;
240 }
241
242 /**
243 * megasas_return_cmd - Return a cmd to free command pool
244 * @instance: Adapter soft state
245 * @cmd: Command packet to be returned to free command pool
246 */
247 void
248 megasas_return_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd)
249 {
250 unsigned long flags;
251 u32 blk_tags;
252 struct megasas_cmd_fusion *cmd_fusion;
253 struct fusion_context *fusion = instance->ctrl_context;
254
255 /* This flag is used only for fusion adapter.
256 * Wait for Interrupt for Polled mode DCMD
257 */
258 if (cmd->flags & DRV_DCMD_POLLED_MODE)
259 return;
260
261 spin_lock_irqsave(&instance->mfi_pool_lock, flags);
262
263 if (fusion) {
264 blk_tags = instance->max_scsi_cmds + cmd->index;
265 cmd_fusion = fusion->cmd_list[blk_tags];
266 megasas_return_cmd_fusion(instance, cmd_fusion);
267 }
268 cmd->scmd = NULL;
269 cmd->frame_count = 0;
270 cmd->flags = 0;
271 memset(cmd->frame, 0, instance->mfi_frame_size);
272 cmd->frame->io.context = cpu_to_le32(cmd->index);
273 if (!fusion && reset_devices)
274 cmd->frame->hdr.cmd = MFI_CMD_INVALID;
275 list_add(&cmd->list, (&instance->cmd_pool)->next);
276
277 spin_unlock_irqrestore(&instance->mfi_pool_lock, flags);
278
279 }
280
281 static const char *
282 format_timestamp(uint32_t timestamp)
283 {
284 static char buffer[32];
285
286 if ((timestamp & 0xff000000) == 0xff000000)
287 snprintf(buffer, sizeof(buffer), "boot + %us", timestamp &
288 0x00ffffff);
289 else
290 snprintf(buffer, sizeof(buffer), "%us", timestamp);
291 return buffer;
292 }
293
294 static const char *
295 format_class(int8_t class)
296 {
297 static char buffer[6];
298
299 switch (class) {
300 case MFI_EVT_CLASS_DEBUG:
301 return "debug";
302 case MFI_EVT_CLASS_PROGRESS:
303 return "progress";
304 case MFI_EVT_CLASS_INFO:
305 return "info";
306 case MFI_EVT_CLASS_WARNING:
307 return "WARN";
308 case MFI_EVT_CLASS_CRITICAL:
309 return "CRIT";
310 case MFI_EVT_CLASS_FATAL:
311 return "FATAL";
312 case MFI_EVT_CLASS_DEAD:
313 return "DEAD";
314 default:
315 snprintf(buffer, sizeof(buffer), "%d", class);
316 return buffer;
317 }
318 }
319
320 /**
321 * megasas_decode_evt: Decode FW AEN event and print critical event
322 * for information.
323 * @instance: Adapter soft state
324 */
325 static void
326 megasas_decode_evt(struct megasas_instance *instance)
327 {
328 struct megasas_evt_detail *evt_detail = instance->evt_detail;
329 union megasas_evt_class_locale class_locale;
330 class_locale.word = le32_to_cpu(evt_detail->cl.word);
331
332 if (class_locale.members.class >= MFI_EVT_CLASS_CRITICAL)
333 dev_info(&instance->pdev->dev, "%d (%s/0x%04x/%s) - %s\n",
334 le32_to_cpu(evt_detail->seq_num),
335 format_timestamp(le32_to_cpu(evt_detail->time_stamp)),
336 (class_locale.members.locale),
337 format_class(class_locale.members.class),
338 evt_detail->description);
339 }
340
341 /**
342 * The following functions are defined for xscale
343 * (deviceid : 1064R, PERC5) controllers
344 */
345
346 /**
347 * megasas_enable_intr_xscale - Enables interrupts
348 * @regs: MFI register set
349 */
350 static inline void
351 megasas_enable_intr_xscale(struct megasas_instance *instance)
352 {
353 struct megasas_register_set __iomem *regs;
354
355 regs = instance->reg_set;
356 writel(0, &(regs)->outbound_intr_mask);
357
358 /* Dummy readl to force pci flush */
359 readl(&regs->outbound_intr_mask);
360 }
361
362 /**
363 * megasas_disable_intr_xscale -Disables interrupt
364 * @regs: MFI register set
365 */
366 static inline void
367 megasas_disable_intr_xscale(struct megasas_instance *instance)
368 {
369 struct megasas_register_set __iomem *regs;
370 u32 mask = 0x1f;
371
372 regs = instance->reg_set;
373 writel(mask, &regs->outbound_intr_mask);
374 /* Dummy readl to force pci flush */
375 readl(&regs->outbound_intr_mask);
376 }
377
378 /**
379 * megasas_read_fw_status_reg_xscale - returns the current FW status value
380 * @regs: MFI register set
381 */
382 static u32
383 megasas_read_fw_status_reg_xscale(struct megasas_register_set __iomem * regs)
384 {
385 return readl(&(regs)->outbound_msg_0);
386 }
387 /**
388 * megasas_clear_interrupt_xscale - Check & clear interrupt
389 * @regs: MFI register set
390 */
391 static int
392 megasas_clear_intr_xscale(struct megasas_register_set __iomem * regs)
393 {
394 u32 status;
395 u32 mfiStatus = 0;
396
397 /*
398 * Check if it is our interrupt
399 */
400 status = readl(&regs->outbound_intr_status);
401
402 if (status & MFI_OB_INTR_STATUS_MASK)
403 mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE;
404 if (status & MFI_XSCALE_OMR0_CHANGE_INTERRUPT)
405 mfiStatus |= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE;
406
407 /*
408 * Clear the interrupt by writing back the same value
409 */
410 if (mfiStatus)
411 writel(status, &regs->outbound_intr_status);
412
413 /* Dummy readl to force pci flush */
414 readl(&regs->outbound_intr_status);
415
416 return mfiStatus;
417 }
418
419 /**
420 * megasas_fire_cmd_xscale - Sends command to the FW
421 * @frame_phys_addr : Physical address of cmd
422 * @frame_count : Number of frames for the command
423 * @regs : MFI register set
424 */
425 static inline void
426 megasas_fire_cmd_xscale(struct megasas_instance *instance,
427 dma_addr_t frame_phys_addr,
428 u32 frame_count,
429 struct megasas_register_set __iomem *regs)
430 {
431 unsigned long flags;
432
433 spin_lock_irqsave(&instance->hba_lock, flags);
434 writel((frame_phys_addr >> 3)|(frame_count),
435 &(regs)->inbound_queue_port);
436 spin_unlock_irqrestore(&instance->hba_lock, flags);
437 }
438
439 /**
440 * megasas_adp_reset_xscale - For controller reset
441 * @regs: MFI register set
442 */
443 static int
444 megasas_adp_reset_xscale(struct megasas_instance *instance,
445 struct megasas_register_set __iomem *regs)
446 {
447 u32 i;
448 u32 pcidata;
449
450 writel(MFI_ADP_RESET, &regs->inbound_doorbell);
451
452 for (i = 0; i < 3; i++)
453 msleep(1000); /* sleep for 3 secs */
454 pcidata = 0;
455 pci_read_config_dword(instance->pdev, MFI_1068_PCSR_OFFSET, &pcidata);
456 dev_notice(&instance->pdev->dev, "pcidata = %x\n", pcidata);
457 if (pcidata & 0x2) {
458 dev_notice(&instance->pdev->dev, "mfi 1068 offset read=%x\n", pcidata);
459 pcidata &= ~0x2;
460 pci_write_config_dword(instance->pdev,
461 MFI_1068_PCSR_OFFSET, pcidata);
462
463 for (i = 0; i < 2; i++)
464 msleep(1000); /* need to wait 2 secs again */
465
466 pcidata = 0;
467 pci_read_config_dword(instance->pdev,
468 MFI_1068_FW_HANDSHAKE_OFFSET, &pcidata);
469 dev_notice(&instance->pdev->dev, "1068 offset handshake read=%x\n", pcidata);
470 if ((pcidata & 0xffff0000) == MFI_1068_FW_READY) {
471 dev_notice(&instance->pdev->dev, "1068 offset pcidt=%x\n", pcidata);
472 pcidata = 0;
473 pci_write_config_dword(instance->pdev,
474 MFI_1068_FW_HANDSHAKE_OFFSET, pcidata);
475 }
476 }
477 return 0;
478 }
479
480 /**
481 * megasas_check_reset_xscale - For controller reset check
482 * @regs: MFI register set
483 */
484 static int
485 megasas_check_reset_xscale(struct megasas_instance *instance,
486 struct megasas_register_set __iomem *regs)
487 {
488 if ((atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) &&
489 (le32_to_cpu(*instance->consumer) ==
490 MEGASAS_ADPRESET_INPROG_SIGN))
491 return 1;
492 return 0;
493 }
494
495 static struct megasas_instance_template megasas_instance_template_xscale = {
496
497 .fire_cmd = megasas_fire_cmd_xscale,
498 .enable_intr = megasas_enable_intr_xscale,
499 .disable_intr = megasas_disable_intr_xscale,
500 .clear_intr = megasas_clear_intr_xscale,
501 .read_fw_status_reg = megasas_read_fw_status_reg_xscale,
502 .adp_reset = megasas_adp_reset_xscale,
503 .check_reset = megasas_check_reset_xscale,
504 .service_isr = megasas_isr,
505 .tasklet = megasas_complete_cmd_dpc,
506 .init_adapter = megasas_init_adapter_mfi,
507 .build_and_issue_cmd = megasas_build_and_issue_cmd,
508 .issue_dcmd = megasas_issue_dcmd,
509 };
510
511 /**
512 * This is the end of set of functions & definitions specific
513 * to xscale (deviceid : 1064R, PERC5) controllers
514 */
515
516 /**
517 * The following functions are defined for ppc (deviceid : 0x60)
518 * controllers
519 */
520
521 /**
522 * megasas_enable_intr_ppc - Enables interrupts
523 * @regs: MFI register set
524 */
525 static inline void
526 megasas_enable_intr_ppc(struct megasas_instance *instance)
527 {
528 struct megasas_register_set __iomem *regs;
529
530 regs = instance->reg_set;
531 writel(0xFFFFFFFF, &(regs)->outbound_doorbell_clear);
532
533 writel(~0x80000000, &(regs)->outbound_intr_mask);
534
535 /* Dummy readl to force pci flush */
536 readl(&regs->outbound_intr_mask);
537 }
538
539 /**
540 * megasas_disable_intr_ppc - Disable interrupt
541 * @regs: MFI register set
542 */
543 static inline void
544 megasas_disable_intr_ppc(struct megasas_instance *instance)
545 {
546 struct megasas_register_set __iomem *regs;
547 u32 mask = 0xFFFFFFFF;
548
549 regs = instance->reg_set;
550 writel(mask, &regs->outbound_intr_mask);
551 /* Dummy readl to force pci flush */
552 readl(&regs->outbound_intr_mask);
553 }
554
555 /**
556 * megasas_read_fw_status_reg_ppc - returns the current FW status value
557 * @regs: MFI register set
558 */
559 static u32
560 megasas_read_fw_status_reg_ppc(struct megasas_register_set __iomem * regs)
561 {
562 return readl(&(regs)->outbound_scratch_pad);
563 }
564
565 /**
566 * megasas_clear_interrupt_ppc - Check & clear interrupt
567 * @regs: MFI register set
568 */
569 static int
570 megasas_clear_intr_ppc(struct megasas_register_set __iomem * regs)
571 {
572 u32 status, mfiStatus = 0;
573
574 /*
575 * Check if it is our interrupt
576 */
577 status = readl(&regs->outbound_intr_status);
578
579 if (status & MFI_REPLY_1078_MESSAGE_INTERRUPT)
580 mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE;
581
582 if (status & MFI_G2_OUTBOUND_DOORBELL_CHANGE_INTERRUPT)
583 mfiStatus |= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE;
584
585 /*
586 * Clear the interrupt by writing back the same value
587 */
588 writel(status, &regs->outbound_doorbell_clear);
589
590 /* Dummy readl to force pci flush */
591 readl(&regs->outbound_doorbell_clear);
592
593 return mfiStatus;
594 }
595
596 /**
597 * megasas_fire_cmd_ppc - Sends command to the FW
598 * @frame_phys_addr : Physical address of cmd
599 * @frame_count : Number of frames for the command
600 * @regs : MFI register set
601 */
602 static inline void
603 megasas_fire_cmd_ppc(struct megasas_instance *instance,
604 dma_addr_t frame_phys_addr,
605 u32 frame_count,
606 struct megasas_register_set __iomem *regs)
607 {
608 unsigned long flags;
609
610 spin_lock_irqsave(&instance->hba_lock, flags);
611 writel((frame_phys_addr | (frame_count<<1))|1,
612 &(regs)->inbound_queue_port);
613 spin_unlock_irqrestore(&instance->hba_lock, flags);
614 }
615
616 /**
617 * megasas_check_reset_ppc - For controller reset check
618 * @regs: MFI register set
619 */
620 static int
621 megasas_check_reset_ppc(struct megasas_instance *instance,
622 struct megasas_register_set __iomem *regs)
623 {
624 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL)
625 return 1;
626
627 return 0;
628 }
629
630 static struct megasas_instance_template megasas_instance_template_ppc = {
631
632 .fire_cmd = megasas_fire_cmd_ppc,
633 .enable_intr = megasas_enable_intr_ppc,
634 .disable_intr = megasas_disable_intr_ppc,
635 .clear_intr = megasas_clear_intr_ppc,
636 .read_fw_status_reg = megasas_read_fw_status_reg_ppc,
637 .adp_reset = megasas_adp_reset_xscale,
638 .check_reset = megasas_check_reset_ppc,
639 .service_isr = megasas_isr,
640 .tasklet = megasas_complete_cmd_dpc,
641 .init_adapter = megasas_init_adapter_mfi,
642 .build_and_issue_cmd = megasas_build_and_issue_cmd,
643 .issue_dcmd = megasas_issue_dcmd,
644 };
645
646 /**
647 * megasas_enable_intr_skinny - Enables interrupts
648 * @regs: MFI register set
649 */
650 static inline void
651 megasas_enable_intr_skinny(struct megasas_instance *instance)
652 {
653 struct megasas_register_set __iomem *regs;
654
655 regs = instance->reg_set;
656 writel(0xFFFFFFFF, &(regs)->outbound_intr_mask);
657
658 writel(~MFI_SKINNY_ENABLE_INTERRUPT_MASK, &(regs)->outbound_intr_mask);
659
660 /* Dummy readl to force pci flush */
661 readl(&regs->outbound_intr_mask);
662 }
663
664 /**
665 * megasas_disable_intr_skinny - Disables interrupt
666 * @regs: MFI register set
667 */
668 static inline void
669 megasas_disable_intr_skinny(struct megasas_instance *instance)
670 {
671 struct megasas_register_set __iomem *regs;
672 u32 mask = 0xFFFFFFFF;
673
674 regs = instance->reg_set;
675 writel(mask, &regs->outbound_intr_mask);
676 /* Dummy readl to force pci flush */
677 readl(&regs->outbound_intr_mask);
678 }
679
680 /**
681 * megasas_read_fw_status_reg_skinny - returns the current FW status value
682 * @regs: MFI register set
683 */
684 static u32
685 megasas_read_fw_status_reg_skinny(struct megasas_register_set __iomem *regs)
686 {
687 return readl(&(regs)->outbound_scratch_pad);
688 }
689
690 /**
691 * megasas_clear_interrupt_skinny - Check & clear interrupt
692 * @regs: MFI register set
693 */
694 static int
695 megasas_clear_intr_skinny(struct megasas_register_set __iomem *regs)
696 {
697 u32 status;
698 u32 mfiStatus = 0;
699
700 /*
701 * Check if it is our interrupt
702 */
703 status = readl(&regs->outbound_intr_status);
704
705 if (!(status & MFI_SKINNY_ENABLE_INTERRUPT_MASK)) {
706 return 0;
707 }
708
709 /*
710 * Check if it is our interrupt
711 */
712 if ((megasas_read_fw_status_reg_skinny(regs) & MFI_STATE_MASK) ==
713 MFI_STATE_FAULT) {
714 mfiStatus = MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE;
715 } else
716 mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE;
717
718 /*
719 * Clear the interrupt by writing back the same value
720 */
721 writel(status, &regs->outbound_intr_status);
722
723 /*
724 * dummy read to flush PCI
725 */
726 readl(&regs->outbound_intr_status);
727
728 return mfiStatus;
729 }
730
731 /**
732 * megasas_fire_cmd_skinny - Sends command to the FW
733 * @frame_phys_addr : Physical address of cmd
734 * @frame_count : Number of frames for the command
735 * @regs : MFI register set
736 */
737 static inline void
738 megasas_fire_cmd_skinny(struct megasas_instance *instance,
739 dma_addr_t frame_phys_addr,
740 u32 frame_count,
741 struct megasas_register_set __iomem *regs)
742 {
743 unsigned long flags;
744
745 spin_lock_irqsave(&instance->hba_lock, flags);
746 writel(upper_32_bits(frame_phys_addr),
747 &(regs)->inbound_high_queue_port);
748 writel((lower_32_bits(frame_phys_addr) | (frame_count<<1))|1,
749 &(regs)->inbound_low_queue_port);
750 mmiowb();
751 spin_unlock_irqrestore(&instance->hba_lock, flags);
752 }
753
754 /**
755 * megasas_check_reset_skinny - For controller reset check
756 * @regs: MFI register set
757 */
758 static int
759 megasas_check_reset_skinny(struct megasas_instance *instance,
760 struct megasas_register_set __iomem *regs)
761 {
762 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL)
763 return 1;
764
765 return 0;
766 }
767
768 static struct megasas_instance_template megasas_instance_template_skinny = {
769
770 .fire_cmd = megasas_fire_cmd_skinny,
771 .enable_intr = megasas_enable_intr_skinny,
772 .disable_intr = megasas_disable_intr_skinny,
773 .clear_intr = megasas_clear_intr_skinny,
774 .read_fw_status_reg = megasas_read_fw_status_reg_skinny,
775 .adp_reset = megasas_adp_reset_gen2,
776 .check_reset = megasas_check_reset_skinny,
777 .service_isr = megasas_isr,
778 .tasklet = megasas_complete_cmd_dpc,
779 .init_adapter = megasas_init_adapter_mfi,
780 .build_and_issue_cmd = megasas_build_and_issue_cmd,
781 .issue_dcmd = megasas_issue_dcmd,
782 };
783
784
785 /**
786 * The following functions are defined for gen2 (deviceid : 0x78 0x79)
787 * controllers
788 */
789
790 /**
791 * megasas_enable_intr_gen2 - Enables interrupts
792 * @regs: MFI register set
793 */
794 static inline void
795 megasas_enable_intr_gen2(struct megasas_instance *instance)
796 {
797 struct megasas_register_set __iomem *regs;
798
799 regs = instance->reg_set;
800 writel(0xFFFFFFFF, &(regs)->outbound_doorbell_clear);
801
802 /* write ~0x00000005 (4 & 1) to the intr mask*/
803 writel(~MFI_GEN2_ENABLE_INTERRUPT_MASK, &(regs)->outbound_intr_mask);
804
805 /* Dummy readl to force pci flush */
806 readl(&regs->outbound_intr_mask);
807 }
808
809 /**
810 * megasas_disable_intr_gen2 - Disables interrupt
811 * @regs: MFI register set
812 */
813 static inline void
814 megasas_disable_intr_gen2(struct megasas_instance *instance)
815 {
816 struct megasas_register_set __iomem *regs;
817 u32 mask = 0xFFFFFFFF;
818
819 regs = instance->reg_set;
820 writel(mask, &regs->outbound_intr_mask);
821 /* Dummy readl to force pci flush */
822 readl(&regs->outbound_intr_mask);
823 }
824
825 /**
826 * megasas_read_fw_status_reg_gen2 - returns the current FW status value
827 * @regs: MFI register set
828 */
829 static u32
830 megasas_read_fw_status_reg_gen2(struct megasas_register_set __iomem *regs)
831 {
832 return readl(&(regs)->outbound_scratch_pad);
833 }
834
835 /**
836 * megasas_clear_interrupt_gen2 - Check & clear interrupt
837 * @regs: MFI register set
838 */
839 static int
840 megasas_clear_intr_gen2(struct megasas_register_set __iomem *regs)
841 {
842 u32 status;
843 u32 mfiStatus = 0;
844
845 /*
846 * Check if it is our interrupt
847 */
848 status = readl(&regs->outbound_intr_status);
849
850 if (status & MFI_INTR_FLAG_REPLY_MESSAGE) {
851 mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE;
852 }
853 if (status & MFI_G2_OUTBOUND_DOORBELL_CHANGE_INTERRUPT) {
854 mfiStatus |= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE;
855 }
856
857 /*
858 * Clear the interrupt by writing back the same value
859 */
860 if (mfiStatus)
861 writel(status, &regs->outbound_doorbell_clear);
862
863 /* Dummy readl to force pci flush */
864 readl(&regs->outbound_intr_status);
865
866 return mfiStatus;
867 }
868 /**
869 * megasas_fire_cmd_gen2 - Sends command to the FW
870 * @frame_phys_addr : Physical address of cmd
871 * @frame_count : Number of frames for the command
872 * @regs : MFI register set
873 */
874 static inline void
875 megasas_fire_cmd_gen2(struct megasas_instance *instance,
876 dma_addr_t frame_phys_addr,
877 u32 frame_count,
878 struct megasas_register_set __iomem *regs)
879 {
880 unsigned long flags;
881
882 spin_lock_irqsave(&instance->hba_lock, flags);
883 writel((frame_phys_addr | (frame_count<<1))|1,
884 &(regs)->inbound_queue_port);
885 spin_unlock_irqrestore(&instance->hba_lock, flags);
886 }
887
888 /**
889 * megasas_adp_reset_gen2 - For controller reset
890 * @regs: MFI register set
891 */
892 static int
893 megasas_adp_reset_gen2(struct megasas_instance *instance,
894 struct megasas_register_set __iomem *reg_set)
895 {
896 u32 retry = 0 ;
897 u32 HostDiag;
898 u32 __iomem *seq_offset = &reg_set->seq_offset;
899 u32 __iomem *hostdiag_offset = &reg_set->host_diag;
900
901 if (instance->instancet == &megasas_instance_template_skinny) {
902 seq_offset = &reg_set->fusion_seq_offset;
903 hostdiag_offset = &reg_set->fusion_host_diag;
904 }
905
906 writel(0, seq_offset);
907 writel(4, seq_offset);
908 writel(0xb, seq_offset);
909 writel(2, seq_offset);
910 writel(7, seq_offset);
911 writel(0xd, seq_offset);
912
913 msleep(1000);
914
915 HostDiag = (u32)readl(hostdiag_offset);
916
917 while (!(HostDiag & DIAG_WRITE_ENABLE)) {
918 msleep(100);
919 HostDiag = (u32)readl(hostdiag_offset);
920 dev_notice(&instance->pdev->dev, "RESETGEN2: retry=%x, hostdiag=%x\n",
921 retry, HostDiag);
922
923 if (retry++ >= 100)
924 return 1;
925
926 }
927
928 dev_notice(&instance->pdev->dev, "ADP_RESET_GEN2: HostDiag=%x\n", HostDiag);
929
930 writel((HostDiag | DIAG_RESET_ADAPTER), hostdiag_offset);
931
932 ssleep(10);
933
934 HostDiag = (u32)readl(hostdiag_offset);
935 while (HostDiag & DIAG_RESET_ADAPTER) {
936 msleep(100);
937 HostDiag = (u32)readl(hostdiag_offset);
938 dev_notice(&instance->pdev->dev, "RESET_GEN2: retry=%x, hostdiag=%x\n",
939 retry, HostDiag);
940
941 if (retry++ >= 1000)
942 return 1;
943
944 }
945 return 0;
946 }
947
948 /**
949 * megasas_check_reset_gen2 - For controller reset check
950 * @regs: MFI register set
951 */
952 static int
953 megasas_check_reset_gen2(struct megasas_instance *instance,
954 struct megasas_register_set __iomem *regs)
955 {
956 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL)
957 return 1;
958
959 return 0;
960 }
961
962 static struct megasas_instance_template megasas_instance_template_gen2 = {
963
964 .fire_cmd = megasas_fire_cmd_gen2,
965 .enable_intr = megasas_enable_intr_gen2,
966 .disable_intr = megasas_disable_intr_gen2,
967 .clear_intr = megasas_clear_intr_gen2,
968 .read_fw_status_reg = megasas_read_fw_status_reg_gen2,
969 .adp_reset = megasas_adp_reset_gen2,
970 .check_reset = megasas_check_reset_gen2,
971 .service_isr = megasas_isr,
972 .tasklet = megasas_complete_cmd_dpc,
973 .init_adapter = megasas_init_adapter_mfi,
974 .build_and_issue_cmd = megasas_build_and_issue_cmd,
975 .issue_dcmd = megasas_issue_dcmd,
976 };
977
978 /**
979 * This is the end of set of functions & definitions
980 * specific to gen2 (deviceid : 0x78, 0x79) controllers
981 */
982
983 /*
984 * Template added for TB (Fusion)
985 */
986 extern struct megasas_instance_template megasas_instance_template_fusion;
987
988 /**
989 * megasas_issue_polled - Issues a polling command
990 * @instance: Adapter soft state
991 * @cmd: Command packet to be issued
992 *
993 * For polling, MFI requires the cmd_status to be set to MFI_STAT_INVALID_STATUS before posting.
994 */
995 int
996 megasas_issue_polled(struct megasas_instance *instance, struct megasas_cmd *cmd)
997 {
998 struct megasas_header *frame_hdr = &cmd->frame->hdr;
999
1000 frame_hdr->cmd_status = MFI_STAT_INVALID_STATUS;
1001 frame_hdr->flags |= cpu_to_le16(MFI_FRAME_DONT_POST_IN_REPLY_QUEUE);
1002
1003 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
1004 dev_err(&instance->pdev->dev, "Failed from %s %d\n",
1005 __func__, __LINE__);
1006 return DCMD_NOT_FIRED;
1007 }
1008
1009 instance->instancet->issue_dcmd(instance, cmd);
1010
1011 return wait_and_poll(instance, cmd, instance->requestorId ?
1012 MEGASAS_ROUTINE_WAIT_TIME_VF : MFI_IO_TIMEOUT_SECS);
1013 }
1014
1015 /**
1016 * megasas_issue_blocked_cmd - Synchronous wrapper around regular FW cmds
1017 * @instance: Adapter soft state
1018 * @cmd: Command to be issued
1019 * @timeout: Timeout in seconds
1020 *
1021 * This function waits on an event for the command to be returned from ISR.
1022 * Max wait time is MEGASAS_INTERNAL_CMD_WAIT_TIME secs
1023 * Used to issue ioctl commands.
1024 */
1025 int
1026 megasas_issue_blocked_cmd(struct megasas_instance *instance,
1027 struct megasas_cmd *cmd, int timeout)
1028 {
1029 int ret = 0;
1030 cmd->cmd_status_drv = MFI_STAT_INVALID_STATUS;
1031
1032 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
1033 dev_err(&instance->pdev->dev, "Failed from %s %d\n",
1034 __func__, __LINE__);
1035 return DCMD_NOT_FIRED;
1036 }
1037
1038 instance->instancet->issue_dcmd(instance, cmd);
1039
1040 if (timeout) {
1041 ret = wait_event_timeout(instance->int_cmd_wait_q,
1042 cmd->cmd_status_drv != MFI_STAT_INVALID_STATUS, timeout * HZ);
1043 if (!ret) {
1044 dev_err(&instance->pdev->dev, "Failed from %s %d DCMD Timed out\n",
1045 __func__, __LINE__);
1046 return DCMD_TIMEOUT;
1047 }
1048 } else
1049 wait_event(instance->int_cmd_wait_q,
1050 cmd->cmd_status_drv != MFI_STAT_INVALID_STATUS);
1051
1052 return (cmd->cmd_status_drv == MFI_STAT_OK) ?
1053 DCMD_SUCCESS : DCMD_FAILED;
1054 }
1055
1056 /**
1057 * megasas_issue_blocked_abort_cmd - Aborts previously issued cmd
1058 * @instance: Adapter soft state
1059 * @cmd_to_abort: Previously issued cmd to be aborted
1060 * @timeout: Timeout in seconds
1061 *
1062 * MFI firmware can abort previously issued AEN comamnd (automatic event
1063 * notification). The megasas_issue_blocked_abort_cmd() issues such abort
1064 * cmd and waits for return status.
1065 * Max wait time is MEGASAS_INTERNAL_CMD_WAIT_TIME secs
1066 */
1067 static int
1068 megasas_issue_blocked_abort_cmd(struct megasas_instance *instance,
1069 struct megasas_cmd *cmd_to_abort, int timeout)
1070 {
1071 struct megasas_cmd *cmd;
1072 struct megasas_abort_frame *abort_fr;
1073 int ret = 0;
1074
1075 cmd = megasas_get_cmd(instance);
1076
1077 if (!cmd)
1078 return -1;
1079
1080 abort_fr = &cmd->frame->abort;
1081
1082 /*
1083 * Prepare and issue the abort frame
1084 */
1085 abort_fr->cmd = MFI_CMD_ABORT;
1086 abort_fr->cmd_status = MFI_STAT_INVALID_STATUS;
1087 abort_fr->flags = cpu_to_le16(0);
1088 abort_fr->abort_context = cpu_to_le32(cmd_to_abort->index);
1089 abort_fr->abort_mfi_phys_addr_lo =
1090 cpu_to_le32(lower_32_bits(cmd_to_abort->frame_phys_addr));
1091 abort_fr->abort_mfi_phys_addr_hi =
1092 cpu_to_le32(upper_32_bits(cmd_to_abort->frame_phys_addr));
1093
1094 cmd->sync_cmd = 1;
1095 cmd->cmd_status_drv = MFI_STAT_INVALID_STATUS;
1096
1097 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
1098 dev_err(&instance->pdev->dev, "Failed from %s %d\n",
1099 __func__, __LINE__);
1100 return DCMD_NOT_FIRED;
1101 }
1102
1103 instance->instancet->issue_dcmd(instance, cmd);
1104
1105 if (timeout) {
1106 ret = wait_event_timeout(instance->abort_cmd_wait_q,
1107 cmd->cmd_status_drv != MFI_STAT_INVALID_STATUS, timeout * HZ);
1108 if (!ret) {
1109 dev_err(&instance->pdev->dev, "Failed from %s %d Abort Timed out\n",
1110 __func__, __LINE__);
1111 return DCMD_TIMEOUT;
1112 }
1113 } else
1114 wait_event(instance->abort_cmd_wait_q,
1115 cmd->cmd_status_drv != MFI_STAT_INVALID_STATUS);
1116
1117 cmd->sync_cmd = 0;
1118
1119 megasas_return_cmd(instance, cmd);
1120 return (cmd->cmd_status_drv == MFI_STAT_OK) ?
1121 DCMD_SUCCESS : DCMD_FAILED;
1122 }
1123
1124 /**
1125 * megasas_make_sgl32 - Prepares 32-bit SGL
1126 * @instance: Adapter soft state
1127 * @scp: SCSI command from the mid-layer
1128 * @mfi_sgl: SGL to be filled in
1129 *
1130 * If successful, this function returns the number of SG elements. Otherwise,
1131 * it returnes -1.
1132 */
1133 static int
1134 megasas_make_sgl32(struct megasas_instance *instance, struct scsi_cmnd *scp,
1135 union megasas_sgl *mfi_sgl)
1136 {
1137 int i;
1138 int sge_count;
1139 struct scatterlist *os_sgl;
1140
1141 sge_count = scsi_dma_map(scp);
1142 BUG_ON(sge_count < 0);
1143
1144 if (sge_count) {
1145 scsi_for_each_sg(scp, os_sgl, sge_count, i) {
1146 mfi_sgl->sge32[i].length = cpu_to_le32(sg_dma_len(os_sgl));
1147 mfi_sgl->sge32[i].phys_addr = cpu_to_le32(sg_dma_address(os_sgl));
1148 }
1149 }
1150 return sge_count;
1151 }
1152
1153 /**
1154 * megasas_make_sgl64 - Prepares 64-bit SGL
1155 * @instance: Adapter soft state
1156 * @scp: SCSI command from the mid-layer
1157 * @mfi_sgl: SGL to be filled in
1158 *
1159 * If successful, this function returns the number of SG elements. Otherwise,
1160 * it returnes -1.
1161 */
1162 static int
1163 megasas_make_sgl64(struct megasas_instance *instance, struct scsi_cmnd *scp,
1164 union megasas_sgl *mfi_sgl)
1165 {
1166 int i;
1167 int sge_count;
1168 struct scatterlist *os_sgl;
1169
1170 sge_count = scsi_dma_map(scp);
1171 BUG_ON(sge_count < 0);
1172
1173 if (sge_count) {
1174 scsi_for_each_sg(scp, os_sgl, sge_count, i) {
1175 mfi_sgl->sge64[i].length = cpu_to_le32(sg_dma_len(os_sgl));
1176 mfi_sgl->sge64[i].phys_addr = cpu_to_le64(sg_dma_address(os_sgl));
1177 }
1178 }
1179 return sge_count;
1180 }
1181
1182 /**
1183 * megasas_make_sgl_skinny - Prepares IEEE SGL
1184 * @instance: Adapter soft state
1185 * @scp: SCSI command from the mid-layer
1186 * @mfi_sgl: SGL to be filled in
1187 *
1188 * If successful, this function returns the number of SG elements. Otherwise,
1189 * it returnes -1.
1190 */
1191 static int
1192 megasas_make_sgl_skinny(struct megasas_instance *instance,
1193 struct scsi_cmnd *scp, union megasas_sgl *mfi_sgl)
1194 {
1195 int i;
1196 int sge_count;
1197 struct scatterlist *os_sgl;
1198
1199 sge_count = scsi_dma_map(scp);
1200
1201 if (sge_count) {
1202 scsi_for_each_sg(scp, os_sgl, sge_count, i) {
1203 mfi_sgl->sge_skinny[i].length =
1204 cpu_to_le32(sg_dma_len(os_sgl));
1205 mfi_sgl->sge_skinny[i].phys_addr =
1206 cpu_to_le64(sg_dma_address(os_sgl));
1207 mfi_sgl->sge_skinny[i].flag = cpu_to_le32(0);
1208 }
1209 }
1210 return sge_count;
1211 }
1212
1213 /**
1214 * megasas_get_frame_count - Computes the number of frames
1215 * @frame_type : type of frame- io or pthru frame
1216 * @sge_count : number of sg elements
1217 *
1218 * Returns the number of frames required for numnber of sge's (sge_count)
1219 */
1220
1221 static u32 megasas_get_frame_count(struct megasas_instance *instance,
1222 u8 sge_count, u8 frame_type)
1223 {
1224 int num_cnt;
1225 int sge_bytes;
1226 u32 sge_sz;
1227 u32 frame_count = 0;
1228
1229 sge_sz = (IS_DMA64) ? sizeof(struct megasas_sge64) :
1230 sizeof(struct megasas_sge32);
1231
1232 if (instance->flag_ieee) {
1233 sge_sz = sizeof(struct megasas_sge_skinny);
1234 }
1235
1236 /*
1237 * Main frame can contain 2 SGEs for 64-bit SGLs and
1238 * 3 SGEs for 32-bit SGLs for ldio &
1239 * 1 SGEs for 64-bit SGLs and
1240 * 2 SGEs for 32-bit SGLs for pthru frame
1241 */
1242 if (unlikely(frame_type == PTHRU_FRAME)) {
1243 if (instance->flag_ieee == 1) {
1244 num_cnt = sge_count - 1;
1245 } else if (IS_DMA64)
1246 num_cnt = sge_count - 1;
1247 else
1248 num_cnt = sge_count - 2;
1249 } else {
1250 if (instance->flag_ieee == 1) {
1251 num_cnt = sge_count - 1;
1252 } else if (IS_DMA64)
1253 num_cnt = sge_count - 2;
1254 else
1255 num_cnt = sge_count - 3;
1256 }
1257
1258 if (num_cnt > 0) {
1259 sge_bytes = sge_sz * num_cnt;
1260
1261 frame_count = (sge_bytes / MEGAMFI_FRAME_SIZE) +
1262 ((sge_bytes % MEGAMFI_FRAME_SIZE) ? 1 : 0) ;
1263 }
1264 /* Main frame */
1265 frame_count += 1;
1266
1267 if (frame_count > 7)
1268 frame_count = 8;
1269 return frame_count;
1270 }
1271
1272 /**
1273 * megasas_build_dcdb - Prepares a direct cdb (DCDB) command
1274 * @instance: Adapter soft state
1275 * @scp: SCSI command
1276 * @cmd: Command to be prepared in
1277 *
1278 * This function prepares CDB commands. These are typcially pass-through
1279 * commands to the devices.
1280 */
1281 static int
1282 megasas_build_dcdb(struct megasas_instance *instance, struct scsi_cmnd *scp,
1283 struct megasas_cmd *cmd)
1284 {
1285 u32 is_logical;
1286 u32 device_id;
1287 u16 flags = 0;
1288 struct megasas_pthru_frame *pthru;
1289
1290 is_logical = MEGASAS_IS_LOGICAL(scp->device);
1291 device_id = MEGASAS_DEV_INDEX(scp);
1292 pthru = (struct megasas_pthru_frame *)cmd->frame;
1293
1294 if (scp->sc_data_direction == PCI_DMA_TODEVICE)
1295 flags = MFI_FRAME_DIR_WRITE;
1296 else if (scp->sc_data_direction == PCI_DMA_FROMDEVICE)
1297 flags = MFI_FRAME_DIR_READ;
1298 else if (scp->sc_data_direction == PCI_DMA_NONE)
1299 flags = MFI_FRAME_DIR_NONE;
1300
1301 if (instance->flag_ieee == 1) {
1302 flags |= MFI_FRAME_IEEE;
1303 }
1304
1305 /*
1306 * Prepare the DCDB frame
1307 */
1308 pthru->cmd = (is_logical) ? MFI_CMD_LD_SCSI_IO : MFI_CMD_PD_SCSI_IO;
1309 pthru->cmd_status = 0x0;
1310 pthru->scsi_status = 0x0;
1311 pthru->target_id = device_id;
1312 pthru->lun = scp->device->lun;
1313 pthru->cdb_len = scp->cmd_len;
1314 pthru->timeout = 0;
1315 pthru->pad_0 = 0;
1316 pthru->flags = cpu_to_le16(flags);
1317 pthru->data_xfer_len = cpu_to_le32(scsi_bufflen(scp));
1318
1319 memcpy(pthru->cdb, scp->cmnd, scp->cmd_len);
1320
1321 /*
1322 * If the command is for the tape device, set the
1323 * pthru timeout to the os layer timeout value.
1324 */
1325 if (scp->device->type == TYPE_TAPE) {
1326 if ((scp->request->timeout / HZ) > 0xFFFF)
1327 pthru->timeout = cpu_to_le16(0xFFFF);
1328 else
1329 pthru->timeout = cpu_to_le16(scp->request->timeout / HZ);
1330 }
1331
1332 /*
1333 * Construct SGL
1334 */
1335 if (instance->flag_ieee == 1) {
1336 pthru->flags |= cpu_to_le16(MFI_FRAME_SGL64);
1337 pthru->sge_count = megasas_make_sgl_skinny(instance, scp,
1338 &pthru->sgl);
1339 } else if (IS_DMA64) {
1340 pthru->flags |= cpu_to_le16(MFI_FRAME_SGL64);
1341 pthru->sge_count = megasas_make_sgl64(instance, scp,
1342 &pthru->sgl);
1343 } else
1344 pthru->sge_count = megasas_make_sgl32(instance, scp,
1345 &pthru->sgl);
1346
1347 if (pthru->sge_count > instance->max_num_sge) {
1348 dev_err(&instance->pdev->dev, "DCDB too many SGE NUM=%x\n",
1349 pthru->sge_count);
1350 return 0;
1351 }
1352
1353 /*
1354 * Sense info specific
1355 */
1356 pthru->sense_len = SCSI_SENSE_BUFFERSIZE;
1357 pthru->sense_buf_phys_addr_hi =
1358 cpu_to_le32(upper_32_bits(cmd->sense_phys_addr));
1359 pthru->sense_buf_phys_addr_lo =
1360 cpu_to_le32(lower_32_bits(cmd->sense_phys_addr));
1361
1362 /*
1363 * Compute the total number of frames this command consumes. FW uses
1364 * this number to pull sufficient number of frames from host memory.
1365 */
1366 cmd->frame_count = megasas_get_frame_count(instance, pthru->sge_count,
1367 PTHRU_FRAME);
1368
1369 return cmd->frame_count;
1370 }
1371
1372 /**
1373 * megasas_build_ldio - Prepares IOs to logical devices
1374 * @instance: Adapter soft state
1375 * @scp: SCSI command
1376 * @cmd: Command to be prepared
1377 *
1378 * Frames (and accompanying SGLs) for regular SCSI IOs use this function.
1379 */
1380 static int
1381 megasas_build_ldio(struct megasas_instance *instance, struct scsi_cmnd *scp,
1382 struct megasas_cmd *cmd)
1383 {
1384 u32 device_id;
1385 u8 sc = scp->cmnd[0];
1386 u16 flags = 0;
1387 struct megasas_io_frame *ldio;
1388
1389 device_id = MEGASAS_DEV_INDEX(scp);
1390 ldio = (struct megasas_io_frame *)cmd->frame;
1391
1392 if (scp->sc_data_direction == PCI_DMA_TODEVICE)
1393 flags = MFI_FRAME_DIR_WRITE;
1394 else if (scp->sc_data_direction == PCI_DMA_FROMDEVICE)
1395 flags = MFI_FRAME_DIR_READ;
1396
1397 if (instance->flag_ieee == 1) {
1398 flags |= MFI_FRAME_IEEE;
1399 }
1400
1401 /*
1402 * Prepare the Logical IO frame: 2nd bit is zero for all read cmds
1403 */
1404 ldio->cmd = (sc & 0x02) ? MFI_CMD_LD_WRITE : MFI_CMD_LD_READ;
1405 ldio->cmd_status = 0x0;
1406 ldio->scsi_status = 0x0;
1407 ldio->target_id = device_id;
1408 ldio->timeout = 0;
1409 ldio->reserved_0 = 0;
1410 ldio->pad_0 = 0;
1411 ldio->flags = cpu_to_le16(flags);
1412 ldio->start_lba_hi = 0;
1413 ldio->access_byte = (scp->cmd_len != 6) ? scp->cmnd[1] : 0;
1414
1415 /*
1416 * 6-byte READ(0x08) or WRITE(0x0A) cdb
1417 */
1418 if (scp->cmd_len == 6) {
1419 ldio->lba_count = cpu_to_le32((u32) scp->cmnd[4]);
1420 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[1] << 16) |
1421 ((u32) scp->cmnd[2] << 8) |
1422 (u32) scp->cmnd[3]);
1423
1424 ldio->start_lba_lo &= cpu_to_le32(0x1FFFFF);
1425 }
1426
1427 /*
1428 * 10-byte READ(0x28) or WRITE(0x2A) cdb
1429 */
1430 else if (scp->cmd_len == 10) {
1431 ldio->lba_count = cpu_to_le32((u32) scp->cmnd[8] |
1432 ((u32) scp->cmnd[7] << 8));
1433 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[2] << 24) |
1434 ((u32) scp->cmnd[3] << 16) |
1435 ((u32) scp->cmnd[4] << 8) |
1436 (u32) scp->cmnd[5]);
1437 }
1438
1439 /*
1440 * 12-byte READ(0xA8) or WRITE(0xAA) cdb
1441 */
1442 else if (scp->cmd_len == 12) {
1443 ldio->lba_count = cpu_to_le32(((u32) scp->cmnd[6] << 24) |
1444 ((u32) scp->cmnd[7] << 16) |
1445 ((u32) scp->cmnd[8] << 8) |
1446 (u32) scp->cmnd[9]);
1447
1448 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[2] << 24) |
1449 ((u32) scp->cmnd[3] << 16) |
1450 ((u32) scp->cmnd[4] << 8) |
1451 (u32) scp->cmnd[5]);
1452 }
1453
1454 /*
1455 * 16-byte READ(0x88) or WRITE(0x8A) cdb
1456 */
1457 else if (scp->cmd_len == 16) {
1458 ldio->lba_count = cpu_to_le32(((u32) scp->cmnd[10] << 24) |
1459 ((u32) scp->cmnd[11] << 16) |
1460 ((u32) scp->cmnd[12] << 8) |
1461 (u32) scp->cmnd[13]);
1462
1463 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[6] << 24) |
1464 ((u32) scp->cmnd[7] << 16) |
1465 ((u32) scp->cmnd[8] << 8) |
1466 (u32) scp->cmnd[9]);
1467
1468 ldio->start_lba_hi = cpu_to_le32(((u32) scp->cmnd[2] << 24) |
1469 ((u32) scp->cmnd[3] << 16) |
1470 ((u32) scp->cmnd[4] << 8) |
1471 (u32) scp->cmnd[5]);
1472
1473 }
1474
1475 /*
1476 * Construct SGL
1477 */
1478 if (instance->flag_ieee) {
1479 ldio->flags |= cpu_to_le16(MFI_FRAME_SGL64);
1480 ldio->sge_count = megasas_make_sgl_skinny(instance, scp,
1481 &ldio->sgl);
1482 } else if (IS_DMA64) {
1483 ldio->flags |= cpu_to_le16(MFI_FRAME_SGL64);
1484 ldio->sge_count = megasas_make_sgl64(instance, scp, &ldio->sgl);
1485 } else
1486 ldio->sge_count = megasas_make_sgl32(instance, scp, &ldio->sgl);
1487
1488 if (ldio->sge_count > instance->max_num_sge) {
1489 dev_err(&instance->pdev->dev, "build_ld_io: sge_count = %x\n",
1490 ldio->sge_count);
1491 return 0;
1492 }
1493
1494 /*
1495 * Sense info specific
1496 */
1497 ldio->sense_len = SCSI_SENSE_BUFFERSIZE;
1498 ldio->sense_buf_phys_addr_hi = 0;
1499 ldio->sense_buf_phys_addr_lo = cpu_to_le32(cmd->sense_phys_addr);
1500
1501 /*
1502 * Compute the total number of frames this command consumes. FW uses
1503 * this number to pull sufficient number of frames from host memory.
1504 */
1505 cmd->frame_count = megasas_get_frame_count(instance,
1506 ldio->sge_count, IO_FRAME);
1507
1508 return cmd->frame_count;
1509 }
1510
1511 /**
1512 * megasas_cmd_type - Checks if the cmd is for logical drive/sysPD
1513 * and whether it's RW or non RW
1514 * @scmd: SCSI command
1515 *
1516 */
1517 inline int megasas_cmd_type(struct scsi_cmnd *cmd)
1518 {
1519 int ret;
1520
1521 switch (cmd->cmnd[0]) {
1522 case READ_10:
1523 case WRITE_10:
1524 case READ_12:
1525 case WRITE_12:
1526 case READ_6:
1527 case WRITE_6:
1528 case READ_16:
1529 case WRITE_16:
1530 ret = (MEGASAS_IS_LOGICAL(cmd->device)) ?
1531 READ_WRITE_LDIO : READ_WRITE_SYSPDIO;
1532 break;
1533 default:
1534 ret = (MEGASAS_IS_LOGICAL(cmd->device)) ?
1535 NON_READ_WRITE_LDIO : NON_READ_WRITE_SYSPDIO;
1536 }
1537 return ret;
1538 }
1539
1540 /**
1541 * megasas_dump_pending_frames - Dumps the frame address of all pending cmds
1542 * in FW
1543 * @instance: Adapter soft state
1544 */
1545 static inline void
1546 megasas_dump_pending_frames(struct megasas_instance *instance)
1547 {
1548 struct megasas_cmd *cmd;
1549 int i,n;
1550 union megasas_sgl *mfi_sgl;
1551 struct megasas_io_frame *ldio;
1552 struct megasas_pthru_frame *pthru;
1553 u32 sgcount;
1554 u16 max_cmd = instance->max_fw_cmds;
1555
1556 dev_err(&instance->pdev->dev, "[%d]: Dumping Frame Phys Address of all pending cmds in FW\n",instance->host->host_no);
1557 dev_err(&instance->pdev->dev, "[%d]: Total OS Pending cmds : %d\n",instance->host->host_no,atomic_read(&instance->fw_outstanding));
1558 if (IS_DMA64)
1559 dev_err(&instance->pdev->dev, "[%d]: 64 bit SGLs were sent to FW\n",instance->host->host_no);
1560 else
1561 dev_err(&instance->pdev->dev, "[%d]: 32 bit SGLs were sent to FW\n",instance->host->host_no);
1562
1563 dev_err(&instance->pdev->dev, "[%d]: Pending OS cmds in FW : \n",instance->host->host_no);
1564 for (i = 0; i < max_cmd; i++) {
1565 cmd = instance->cmd_list[i];
1566 if (!cmd->scmd)
1567 continue;
1568 dev_err(&instance->pdev->dev, "[%d]: Frame addr :0x%08lx : ",instance->host->host_no,(unsigned long)cmd->frame_phys_addr);
1569 if (megasas_cmd_type(cmd->scmd) == READ_WRITE_LDIO) {
1570 ldio = (struct megasas_io_frame *)cmd->frame;
1571 mfi_sgl = &ldio->sgl;
1572 sgcount = ldio->sge_count;
1573 dev_err(&instance->pdev->dev, "[%d]: frame count : 0x%x, Cmd : 0x%x, Tgt id : 0x%x,"
1574 " lba lo : 0x%x, lba_hi : 0x%x, sense_buf addr : 0x%x,sge count : 0x%x\n",
1575 instance->host->host_no, cmd->frame_count, ldio->cmd, ldio->target_id,
1576 le32_to_cpu(ldio->start_lba_lo), le32_to_cpu(ldio->start_lba_hi),
1577 le32_to_cpu(ldio->sense_buf_phys_addr_lo), sgcount);
1578 } else {
1579 pthru = (struct megasas_pthru_frame *) cmd->frame;
1580 mfi_sgl = &pthru->sgl;
1581 sgcount = pthru->sge_count;
1582 dev_err(&instance->pdev->dev, "[%d]: frame count : 0x%x, Cmd : 0x%x, Tgt id : 0x%x, "
1583 "lun : 0x%x, cdb_len : 0x%x, data xfer len : 0x%x, sense_buf addr : 0x%x,sge count : 0x%x\n",
1584 instance->host->host_no, cmd->frame_count, pthru->cmd, pthru->target_id,
1585 pthru->lun, pthru->cdb_len, le32_to_cpu(pthru->data_xfer_len),
1586 le32_to_cpu(pthru->sense_buf_phys_addr_lo), sgcount);
1587 }
1588 if (megasas_dbg_lvl & MEGASAS_DBG_LVL) {
1589 for (n = 0; n < sgcount; n++) {
1590 if (IS_DMA64)
1591 dev_err(&instance->pdev->dev, "sgl len : 0x%x, sgl addr : 0x%llx\n",
1592 le32_to_cpu(mfi_sgl->sge64[n].length),
1593 le64_to_cpu(mfi_sgl->sge64[n].phys_addr));
1594 else
1595 dev_err(&instance->pdev->dev, "sgl len : 0x%x, sgl addr : 0x%x\n",
1596 le32_to_cpu(mfi_sgl->sge32[n].length),
1597 le32_to_cpu(mfi_sgl->sge32[n].phys_addr));
1598 }
1599 }
1600 } /*for max_cmd*/
1601 dev_err(&instance->pdev->dev, "[%d]: Pending Internal cmds in FW : \n",instance->host->host_no);
1602 for (i = 0; i < max_cmd; i++) {
1603
1604 cmd = instance->cmd_list[i];
1605
1606 if (cmd->sync_cmd == 1)
1607 dev_err(&instance->pdev->dev, "0x%08lx : ", (unsigned long)cmd->frame_phys_addr);
1608 }
1609 dev_err(&instance->pdev->dev, "[%d]: Dumping Done\n\n",instance->host->host_no);
1610 }
1611
1612 u32
1613 megasas_build_and_issue_cmd(struct megasas_instance *instance,
1614 struct scsi_cmnd *scmd)
1615 {
1616 struct megasas_cmd *cmd;
1617 u32 frame_count;
1618
1619 cmd = megasas_get_cmd(instance);
1620 if (!cmd)
1621 return SCSI_MLQUEUE_HOST_BUSY;
1622
1623 /*
1624 * Logical drive command
1625 */
1626 if (megasas_cmd_type(scmd) == READ_WRITE_LDIO)
1627 frame_count = megasas_build_ldio(instance, scmd, cmd);
1628 else
1629 frame_count = megasas_build_dcdb(instance, scmd, cmd);
1630
1631 if (!frame_count)
1632 goto out_return_cmd;
1633
1634 cmd->scmd = scmd;
1635 scmd->SCp.ptr = (char *)cmd;
1636
1637 /*
1638 * Issue the command to the FW
1639 */
1640 atomic_inc(&instance->fw_outstanding);
1641
1642 instance->instancet->fire_cmd(instance, cmd->frame_phys_addr,
1643 cmd->frame_count-1, instance->reg_set);
1644
1645 return 0;
1646 out_return_cmd:
1647 megasas_return_cmd(instance, cmd);
1648 return SCSI_MLQUEUE_HOST_BUSY;
1649 }
1650
1651
1652 /**
1653 * megasas_queue_command - Queue entry point
1654 * @scmd: SCSI command to be queued
1655 * @done: Callback entry point
1656 */
1657 static int
1658 megasas_queue_command(struct Scsi_Host *shost, struct scsi_cmnd *scmd)
1659 {
1660 struct megasas_instance *instance;
1661 struct MR_PRIV_DEVICE *mr_device_priv_data;
1662
1663 instance = (struct megasas_instance *)
1664 scmd->device->host->hostdata;
1665
1666 if (instance->unload == 1) {
1667 scmd->result = DID_NO_CONNECT << 16;
1668 scmd->scsi_done(scmd);
1669 return 0;
1670 }
1671
1672 if (instance->issuepend_done == 0)
1673 return SCSI_MLQUEUE_HOST_BUSY;
1674
1675
1676 /* Check for an mpio path and adjust behavior */
1677 if (atomic_read(&instance->adprecovery) == MEGASAS_ADPRESET_SM_INFAULT) {
1678 if (megasas_check_mpio_paths(instance, scmd) ==
1679 (DID_REQUEUE << 16)) {
1680 return SCSI_MLQUEUE_HOST_BUSY;
1681 } else {
1682 scmd->result = DID_NO_CONNECT << 16;
1683 scmd->scsi_done(scmd);
1684 return 0;
1685 }
1686 }
1687
1688 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
1689 scmd->result = DID_NO_CONNECT << 16;
1690 scmd->scsi_done(scmd);
1691 return 0;
1692 }
1693
1694 mr_device_priv_data = scmd->device->hostdata;
1695 if (!mr_device_priv_data) {
1696 scmd->result = DID_NO_CONNECT << 16;
1697 scmd->scsi_done(scmd);
1698 return 0;
1699 }
1700
1701 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL)
1702 return SCSI_MLQUEUE_HOST_BUSY;
1703
1704 if (mr_device_priv_data->tm_busy)
1705 return SCSI_MLQUEUE_DEVICE_BUSY;
1706
1707
1708 scmd->result = 0;
1709
1710 if (MEGASAS_IS_LOGICAL(scmd->device) &&
1711 (scmd->device->id >= instance->fw_supported_vd_count ||
1712 scmd->device->lun)) {
1713 scmd->result = DID_BAD_TARGET << 16;
1714 goto out_done;
1715 }
1716
1717 if ((scmd->cmnd[0] == SYNCHRONIZE_CACHE) &&
1718 MEGASAS_IS_LOGICAL(scmd->device) &&
1719 (!instance->fw_sync_cache_support)) {
1720 scmd->result = DID_OK << 16;
1721 goto out_done;
1722 }
1723
1724 return instance->instancet->build_and_issue_cmd(instance, scmd);
1725
1726 out_done:
1727 scmd->scsi_done(scmd);
1728 return 0;
1729 }
1730
1731 static struct megasas_instance *megasas_lookup_instance(u16 host_no)
1732 {
1733 int i;
1734
1735 for (i = 0; i < megasas_mgmt_info.max_index; i++) {
1736
1737 if ((megasas_mgmt_info.instance[i]) &&
1738 (megasas_mgmt_info.instance[i]->host->host_no == host_no))
1739 return megasas_mgmt_info.instance[i];
1740 }
1741
1742 return NULL;
1743 }
1744
1745 /*
1746 * megasas_set_dynamic_target_properties -
1747 * Device property set by driver may not be static and it is required to be
1748 * updated after OCR
1749 *
1750 * set tm_capable.
1751 * set dma alignment (only for eedp protection enable vd).
1752 *
1753 * @sdev: OS provided scsi device
1754 *
1755 * Returns void
1756 */
1757 void megasas_set_dynamic_target_properties(struct scsi_device *sdev)
1758 {
1759 u16 pd_index = 0, ld;
1760 u32 device_id;
1761 struct megasas_instance *instance;
1762 struct fusion_context *fusion;
1763 struct MR_PRIV_DEVICE *mr_device_priv_data;
1764 struct MR_PD_CFG_SEQ_NUM_SYNC *pd_sync;
1765 struct MR_LD_RAID *raid;
1766 struct MR_DRV_RAID_MAP_ALL *local_map_ptr;
1767
1768 instance = megasas_lookup_instance(sdev->host->host_no);
1769 fusion = instance->ctrl_context;
1770 mr_device_priv_data = sdev->hostdata;
1771
1772 if (!fusion || !mr_device_priv_data)
1773 return;
1774
1775 if (MEGASAS_IS_LOGICAL(sdev)) {
1776 device_id = ((sdev->channel % 2) * MEGASAS_MAX_DEV_PER_CHANNEL)
1777 + sdev->id;
1778 local_map_ptr = fusion->ld_drv_map[(instance->map_id & 1)];
1779 ld = MR_TargetIdToLdGet(device_id, local_map_ptr);
1780 if (ld >= instance->fw_supported_vd_count)
1781 return;
1782 raid = MR_LdRaidGet(ld, local_map_ptr);
1783
1784 if (raid->capability.ldPiMode == MR_PROT_INFO_TYPE_CONTROLLER)
1785 blk_queue_update_dma_alignment(sdev->request_queue, 0x7);
1786
1787 mr_device_priv_data->is_tm_capable =
1788 raid->capability.tmCapable;
1789 } else if (instance->use_seqnum_jbod_fp) {
1790 pd_index = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) +
1791 sdev->id;
1792 pd_sync = (void *)fusion->pd_seq_sync
1793 [(instance->pd_seq_map_id - 1) & 1];
1794 mr_device_priv_data->is_tm_capable =
1795 pd_sync->seq[pd_index].capability.tmCapable;
1796 }
1797 }
1798
1799 /*
1800 * megasas_set_nvme_device_properties -
1801 * set nomerges=2
1802 * set virtual page boundary = 4K (current mr_nvme_pg_size is 4K).
1803 * set maximum io transfer = MDTS of NVME device provided by MR firmware.
1804 *
1805 * MR firmware provides value in KB. Caller of this function converts
1806 * kb into bytes.
1807 *
1808 * e.a MDTS=5 means 2^5 * nvme page size. (In case of 4K page size,
1809 * MR firmware provides value 128 as (32 * 4K) = 128K.
1810 *
1811 * @sdev: scsi device
1812 * @max_io_size: maximum io transfer size
1813 *
1814 */
1815 static inline void
1816 megasas_set_nvme_device_properties(struct scsi_device *sdev, u32 max_io_size)
1817 {
1818 struct megasas_instance *instance;
1819 u32 mr_nvme_pg_size;
1820
1821 instance = (struct megasas_instance *)sdev->host->hostdata;
1822 mr_nvme_pg_size = max_t(u32, instance->nvme_page_size,
1823 MR_DEFAULT_NVME_PAGE_SIZE);
1824
1825 blk_queue_max_hw_sectors(sdev->request_queue, (max_io_size / 512));
1826
1827 queue_flag_set_unlocked(QUEUE_FLAG_NOMERGES, sdev->request_queue);
1828 blk_queue_virt_boundary(sdev->request_queue, mr_nvme_pg_size - 1);
1829 }
1830
1831
1832 /*
1833 * megasas_set_static_target_properties -
1834 * Device property set by driver are static and it is not required to be
1835 * updated after OCR.
1836 *
1837 * set io timeout
1838 * set device queue depth
1839 * set nvme device properties. see - megasas_set_nvme_device_properties
1840 *
1841 * @sdev: scsi device
1842 * @is_target_prop true, if fw provided target properties.
1843 */
1844 static void megasas_set_static_target_properties(struct scsi_device *sdev,
1845 bool is_target_prop)
1846 {
1847 u16 target_index = 0;
1848 u8 interface_type;
1849 u32 device_qd = MEGASAS_DEFAULT_CMD_PER_LUN;
1850 u32 max_io_size_kb = MR_DEFAULT_NVME_MDTS_KB;
1851 u32 tgt_device_qd;
1852 struct megasas_instance *instance;
1853 struct MR_PRIV_DEVICE *mr_device_priv_data;
1854
1855 instance = megasas_lookup_instance(sdev->host->host_no);
1856 mr_device_priv_data = sdev->hostdata;
1857 interface_type = mr_device_priv_data->interface_type;
1858
1859 /*
1860 * The RAID firmware may require extended timeouts.
1861 */
1862 blk_queue_rq_timeout(sdev->request_queue, scmd_timeout * HZ);
1863
1864 target_index = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + sdev->id;
1865
1866 switch (interface_type) {
1867 case SAS_PD:
1868 device_qd = MEGASAS_SAS_QD;
1869 break;
1870 case SATA_PD:
1871 device_qd = MEGASAS_SATA_QD;
1872 break;
1873 case NVME_PD:
1874 device_qd = MEGASAS_NVME_QD;
1875 break;
1876 }
1877
1878 if (is_target_prop) {
1879 tgt_device_qd = le32_to_cpu(instance->tgt_prop->device_qdepth);
1880 if (tgt_device_qd &&
1881 (tgt_device_qd <= instance->host->can_queue))
1882 device_qd = tgt_device_qd;
1883
1884 /* max_io_size_kb will be set to non zero for
1885 * nvme based vd and syspd.
1886 */
1887 max_io_size_kb = le32_to_cpu(instance->tgt_prop->max_io_size_kb);
1888 }
1889
1890 if (instance->nvme_page_size && max_io_size_kb)
1891 megasas_set_nvme_device_properties(sdev, (max_io_size_kb << 10));
1892
1893 scsi_change_queue_depth(sdev, device_qd);
1894
1895 }
1896
1897
1898 static int megasas_slave_configure(struct scsi_device *sdev)
1899 {
1900 u16 pd_index = 0;
1901 struct megasas_instance *instance;
1902 int ret_target_prop = DCMD_FAILED;
1903 bool is_target_prop = false;
1904
1905 instance = megasas_lookup_instance(sdev->host->host_no);
1906 if (instance->pd_list_not_supported) {
1907 if (!MEGASAS_IS_LOGICAL(sdev) && sdev->type == TYPE_DISK) {
1908 pd_index = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) +
1909 sdev->id;
1910 if (instance->pd_list[pd_index].driveState !=
1911 MR_PD_STATE_SYSTEM)
1912 return -ENXIO;
1913 }
1914 }
1915
1916 mutex_lock(&instance->hba_mutex);
1917 /* Send DCMD to Firmware and cache the information */
1918 if ((instance->pd_info) && !MEGASAS_IS_LOGICAL(sdev))
1919 megasas_get_pd_info(instance, sdev);
1920
1921 /* Some ventura firmware may not have instance->nvme_page_size set.
1922 * Do not send MR_DCMD_DRV_GET_TARGET_PROP
1923 */
1924 if ((instance->tgt_prop) && (instance->nvme_page_size))
1925 ret_target_prop = megasas_get_target_prop(instance, sdev);
1926
1927 is_target_prop = (ret_target_prop == DCMD_SUCCESS) ? true : false;
1928 megasas_set_static_target_properties(sdev, is_target_prop);
1929
1930 mutex_unlock(&instance->hba_mutex);
1931
1932 /* This sdev property may change post OCR */
1933 megasas_set_dynamic_target_properties(sdev);
1934
1935 return 0;
1936 }
1937
1938 static int megasas_slave_alloc(struct scsi_device *sdev)
1939 {
1940 u16 pd_index = 0;
1941 struct megasas_instance *instance ;
1942 struct MR_PRIV_DEVICE *mr_device_priv_data;
1943
1944 instance = megasas_lookup_instance(sdev->host->host_no);
1945 if (!MEGASAS_IS_LOGICAL(sdev)) {
1946 /*
1947 * Open the OS scan to the SYSTEM PD
1948 */
1949 pd_index =
1950 (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) +
1951 sdev->id;
1952 if ((instance->pd_list_not_supported ||
1953 instance->pd_list[pd_index].driveState ==
1954 MR_PD_STATE_SYSTEM)) {
1955 goto scan_target;
1956 }
1957 return -ENXIO;
1958 }
1959
1960 scan_target:
1961 mr_device_priv_data = kzalloc(sizeof(*mr_device_priv_data),
1962 GFP_KERNEL);
1963 if (!mr_device_priv_data)
1964 return -ENOMEM;
1965 sdev->hostdata = mr_device_priv_data;
1966
1967 atomic_set(&mr_device_priv_data->r1_ldio_hint,
1968 instance->r1_ldio_hint_default);
1969 return 0;
1970 }
1971
1972 static void megasas_slave_destroy(struct scsi_device *sdev)
1973 {
1974 kfree(sdev->hostdata);
1975 sdev->hostdata = NULL;
1976 }
1977
1978 /*
1979 * megasas_complete_outstanding_ioctls - Complete outstanding ioctls after a
1980 * kill adapter
1981 * @instance: Adapter soft state
1982 *
1983 */
1984 static void megasas_complete_outstanding_ioctls(struct megasas_instance *instance)
1985 {
1986 int i;
1987 struct megasas_cmd *cmd_mfi;
1988 struct megasas_cmd_fusion *cmd_fusion;
1989 struct fusion_context *fusion = instance->ctrl_context;
1990
1991 /* Find all outstanding ioctls */
1992 if (fusion) {
1993 for (i = 0; i < instance->max_fw_cmds; i++) {
1994 cmd_fusion = fusion->cmd_list[i];
1995 if (cmd_fusion->sync_cmd_idx != (u32)ULONG_MAX) {
1996 cmd_mfi = instance->cmd_list[cmd_fusion->sync_cmd_idx];
1997 if (cmd_mfi->sync_cmd &&
1998 cmd_mfi->frame->hdr.cmd != MFI_CMD_ABORT)
1999 megasas_complete_cmd(instance,
2000 cmd_mfi, DID_OK);
2001 }
2002 }
2003 } else {
2004 for (i = 0; i < instance->max_fw_cmds; i++) {
2005 cmd_mfi = instance->cmd_list[i];
2006 if (cmd_mfi->sync_cmd && cmd_mfi->frame->hdr.cmd !=
2007 MFI_CMD_ABORT)
2008 megasas_complete_cmd(instance, cmd_mfi, DID_OK);
2009 }
2010 }
2011 }
2012
2013
2014 void megaraid_sas_kill_hba(struct megasas_instance *instance)
2015 {
2016 /* Set critical error to block I/O & ioctls in case caller didn't */
2017 atomic_set(&instance->adprecovery, MEGASAS_HW_CRITICAL_ERROR);
2018 /* Wait 1 second to ensure IO or ioctls in build have posted */
2019 msleep(1000);
2020 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
2021 (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY) ||
2022 (instance->ctrl_context)) {
2023 writel(MFI_STOP_ADP, &instance->reg_set->doorbell);
2024 /* Flush */
2025 readl(&instance->reg_set->doorbell);
2026 if (instance->requestorId && instance->peerIsPresent)
2027 memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS);
2028 } else {
2029 writel(MFI_STOP_ADP,
2030 &instance->reg_set->inbound_doorbell);
2031 }
2032 /* Complete outstanding ioctls when adapter is killed */
2033 megasas_complete_outstanding_ioctls(instance);
2034 }
2035
2036 /**
2037 * megasas_check_and_restore_queue_depth - Check if queue depth needs to be
2038 * restored to max value
2039 * @instance: Adapter soft state
2040 *
2041 */
2042 void
2043 megasas_check_and_restore_queue_depth(struct megasas_instance *instance)
2044 {
2045 unsigned long flags;
2046
2047 if (instance->flag & MEGASAS_FW_BUSY
2048 && time_after(jiffies, instance->last_time + 5 * HZ)
2049 && atomic_read(&instance->fw_outstanding) <
2050 instance->throttlequeuedepth + 1) {
2051
2052 spin_lock_irqsave(instance->host->host_lock, flags);
2053 instance->flag &= ~MEGASAS_FW_BUSY;
2054
2055 instance->host->can_queue = instance->cur_can_queue;
2056 spin_unlock_irqrestore(instance->host->host_lock, flags);
2057 }
2058 }
2059
2060 /**
2061 * megasas_complete_cmd_dpc - Returns FW's controller structure
2062 * @instance_addr: Address of adapter soft state
2063 *
2064 * Tasklet to complete cmds
2065 */
2066 static void megasas_complete_cmd_dpc(unsigned long instance_addr)
2067 {
2068 u32 producer;
2069 u32 consumer;
2070 u32 context;
2071 struct megasas_cmd *cmd;
2072 struct megasas_instance *instance =
2073 (struct megasas_instance *)instance_addr;
2074 unsigned long flags;
2075
2076 /* If we have already declared adapter dead, donot complete cmds */
2077 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR)
2078 return;
2079
2080 spin_lock_irqsave(&instance->completion_lock, flags);
2081
2082 producer = le32_to_cpu(*instance->producer);
2083 consumer = le32_to_cpu(*instance->consumer);
2084
2085 while (consumer != producer) {
2086 context = le32_to_cpu(instance->reply_queue[consumer]);
2087 if (context >= instance->max_fw_cmds) {
2088 dev_err(&instance->pdev->dev, "Unexpected context value %x\n",
2089 context);
2090 BUG();
2091 }
2092
2093 cmd = instance->cmd_list[context];
2094
2095 megasas_complete_cmd(instance, cmd, DID_OK);
2096
2097 consumer++;
2098 if (consumer == (instance->max_fw_cmds + 1)) {
2099 consumer = 0;
2100 }
2101 }
2102
2103 *instance->consumer = cpu_to_le32(producer);
2104
2105 spin_unlock_irqrestore(&instance->completion_lock, flags);
2106
2107 /*
2108 * Check if we can restore can_queue
2109 */
2110 megasas_check_and_restore_queue_depth(instance);
2111 }
2112
2113 /**
2114 * megasas_start_timer - Initializes a timer object
2115 * @instance: Adapter soft state
2116 * @timer: timer object to be initialized
2117 * @fn: timer function
2118 * @interval: time interval between timer function call
2119 *
2120 */
2121 void megasas_start_timer(struct megasas_instance *instance,
2122 struct timer_list *timer,
2123 void *fn, unsigned long interval)
2124 {
2125 init_timer(timer);
2126 timer->expires = jiffies + interval;
2127 timer->data = (unsigned long)instance;
2128 timer->function = fn;
2129 add_timer(timer);
2130 }
2131
2132 static void
2133 megasas_internal_reset_defer_cmds(struct megasas_instance *instance);
2134
2135 static void
2136 process_fw_state_change_wq(struct work_struct *work);
2137
2138 void megasas_do_ocr(struct megasas_instance *instance)
2139 {
2140 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS1064R) ||
2141 (instance->pdev->device == PCI_DEVICE_ID_DELL_PERC5) ||
2142 (instance->pdev->device == PCI_DEVICE_ID_LSI_VERDE_ZCR)) {
2143 *instance->consumer = cpu_to_le32(MEGASAS_ADPRESET_INPROG_SIGN);
2144 }
2145 instance->instancet->disable_intr(instance);
2146 atomic_set(&instance->adprecovery, MEGASAS_ADPRESET_SM_INFAULT);
2147 instance->issuepend_done = 0;
2148
2149 atomic_set(&instance->fw_outstanding, 0);
2150 megasas_internal_reset_defer_cmds(instance);
2151 process_fw_state_change_wq(&instance->work_init);
2152 }
2153
2154 static int megasas_get_ld_vf_affiliation_111(struct megasas_instance *instance,
2155 int initial)
2156 {
2157 struct megasas_cmd *cmd;
2158 struct megasas_dcmd_frame *dcmd;
2159 struct MR_LD_VF_AFFILIATION_111 *new_affiliation_111 = NULL;
2160 dma_addr_t new_affiliation_111_h;
2161 int ld, retval = 0;
2162 u8 thisVf;
2163
2164 cmd = megasas_get_cmd(instance);
2165
2166 if (!cmd) {
2167 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_vf_affiliation_111:"
2168 "Failed to get cmd for scsi%d\n",
2169 instance->host->host_no);
2170 return -ENOMEM;
2171 }
2172
2173 dcmd = &cmd->frame->dcmd;
2174
2175 if (!instance->vf_affiliation_111) {
2176 dev_warn(&instance->pdev->dev, "SR-IOV: Couldn't get LD/VF "
2177 "affiliation for scsi%d\n", instance->host->host_no);
2178 megasas_return_cmd(instance, cmd);
2179 return -ENOMEM;
2180 }
2181
2182 if (initial)
2183 memset(instance->vf_affiliation_111, 0,
2184 sizeof(struct MR_LD_VF_AFFILIATION_111));
2185 else {
2186 new_affiliation_111 =
2187 pci_alloc_consistent(instance->pdev,
2188 sizeof(struct MR_LD_VF_AFFILIATION_111),
2189 &new_affiliation_111_h);
2190 if (!new_affiliation_111) {
2191 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate "
2192 "memory for new affiliation for scsi%d\n",
2193 instance->host->host_no);
2194 megasas_return_cmd(instance, cmd);
2195 return -ENOMEM;
2196 }
2197 memset(new_affiliation_111, 0,
2198 sizeof(struct MR_LD_VF_AFFILIATION_111));
2199 }
2200
2201 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
2202
2203 dcmd->cmd = MFI_CMD_DCMD;
2204 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
2205 dcmd->sge_count = 1;
2206 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_BOTH);
2207 dcmd->timeout = 0;
2208 dcmd->pad_0 = 0;
2209 dcmd->data_xfer_len =
2210 cpu_to_le32(sizeof(struct MR_LD_VF_AFFILIATION_111));
2211 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_VF_MAP_GET_ALL_LDS_111);
2212
2213 if (initial)
2214 dcmd->sgl.sge32[0].phys_addr =
2215 cpu_to_le32(instance->vf_affiliation_111_h);
2216 else
2217 dcmd->sgl.sge32[0].phys_addr =
2218 cpu_to_le32(new_affiliation_111_h);
2219
2220 dcmd->sgl.sge32[0].length = cpu_to_le32(
2221 sizeof(struct MR_LD_VF_AFFILIATION_111));
2222
2223 dev_warn(&instance->pdev->dev, "SR-IOV: Getting LD/VF affiliation for "
2224 "scsi%d\n", instance->host->host_no);
2225
2226 if (megasas_issue_blocked_cmd(instance, cmd, 0) != DCMD_SUCCESS) {
2227 dev_warn(&instance->pdev->dev, "SR-IOV: LD/VF affiliation DCMD"
2228 " failed with status 0x%x for scsi%d\n",
2229 dcmd->cmd_status, instance->host->host_no);
2230 retval = 1; /* Do a scan if we couldn't get affiliation */
2231 goto out;
2232 }
2233
2234 if (!initial) {
2235 thisVf = new_affiliation_111->thisVf;
2236 for (ld = 0 ; ld < new_affiliation_111->vdCount; ld++)
2237 if (instance->vf_affiliation_111->map[ld].policy[thisVf] !=
2238 new_affiliation_111->map[ld].policy[thisVf]) {
2239 dev_warn(&instance->pdev->dev, "SR-IOV: "
2240 "Got new LD/VF affiliation for scsi%d\n",
2241 instance->host->host_no);
2242 memcpy(instance->vf_affiliation_111,
2243 new_affiliation_111,
2244 sizeof(struct MR_LD_VF_AFFILIATION_111));
2245 retval = 1;
2246 goto out;
2247 }
2248 }
2249 out:
2250 if (new_affiliation_111) {
2251 pci_free_consistent(instance->pdev,
2252 sizeof(struct MR_LD_VF_AFFILIATION_111),
2253 new_affiliation_111,
2254 new_affiliation_111_h);
2255 }
2256
2257 megasas_return_cmd(instance, cmd);
2258
2259 return retval;
2260 }
2261
2262 static int megasas_get_ld_vf_affiliation_12(struct megasas_instance *instance,
2263 int initial)
2264 {
2265 struct megasas_cmd *cmd;
2266 struct megasas_dcmd_frame *dcmd;
2267 struct MR_LD_VF_AFFILIATION *new_affiliation = NULL;
2268 struct MR_LD_VF_MAP *newmap = NULL, *savedmap = NULL;
2269 dma_addr_t new_affiliation_h;
2270 int i, j, retval = 0, found = 0, doscan = 0;
2271 u8 thisVf;
2272
2273 cmd = megasas_get_cmd(instance);
2274
2275 if (!cmd) {
2276 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_vf_affiliation12: "
2277 "Failed to get cmd for scsi%d\n",
2278 instance->host->host_no);
2279 return -ENOMEM;
2280 }
2281
2282 dcmd = &cmd->frame->dcmd;
2283
2284 if (!instance->vf_affiliation) {
2285 dev_warn(&instance->pdev->dev, "SR-IOV: Couldn't get LD/VF "
2286 "affiliation for scsi%d\n", instance->host->host_no);
2287 megasas_return_cmd(instance, cmd);
2288 return -ENOMEM;
2289 }
2290
2291 if (initial)
2292 memset(instance->vf_affiliation, 0, (MAX_LOGICAL_DRIVES + 1) *
2293 sizeof(struct MR_LD_VF_AFFILIATION));
2294 else {
2295 new_affiliation =
2296 pci_alloc_consistent(instance->pdev,
2297 (MAX_LOGICAL_DRIVES + 1) *
2298 sizeof(struct MR_LD_VF_AFFILIATION),
2299 &new_affiliation_h);
2300 if (!new_affiliation) {
2301 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate "
2302 "memory for new affiliation for scsi%d\n",
2303 instance->host->host_no);
2304 megasas_return_cmd(instance, cmd);
2305 return -ENOMEM;
2306 }
2307 memset(new_affiliation, 0, (MAX_LOGICAL_DRIVES + 1) *
2308 sizeof(struct MR_LD_VF_AFFILIATION));
2309 }
2310
2311 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
2312
2313 dcmd->cmd = MFI_CMD_DCMD;
2314 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
2315 dcmd->sge_count = 1;
2316 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_BOTH);
2317 dcmd->timeout = 0;
2318 dcmd->pad_0 = 0;
2319 dcmd->data_xfer_len = cpu_to_le32((MAX_LOGICAL_DRIVES + 1) *
2320 sizeof(struct MR_LD_VF_AFFILIATION));
2321 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_VF_MAP_GET_ALL_LDS);
2322
2323 if (initial)
2324 dcmd->sgl.sge32[0].phys_addr =
2325 cpu_to_le32(instance->vf_affiliation_h);
2326 else
2327 dcmd->sgl.sge32[0].phys_addr =
2328 cpu_to_le32(new_affiliation_h);
2329
2330 dcmd->sgl.sge32[0].length = cpu_to_le32((MAX_LOGICAL_DRIVES + 1) *
2331 sizeof(struct MR_LD_VF_AFFILIATION));
2332
2333 dev_warn(&instance->pdev->dev, "SR-IOV: Getting LD/VF affiliation for "
2334 "scsi%d\n", instance->host->host_no);
2335
2336
2337 if (megasas_issue_blocked_cmd(instance, cmd, 0) != DCMD_SUCCESS) {
2338 dev_warn(&instance->pdev->dev, "SR-IOV: LD/VF affiliation DCMD"
2339 " failed with status 0x%x for scsi%d\n",
2340 dcmd->cmd_status, instance->host->host_no);
2341 retval = 1; /* Do a scan if we couldn't get affiliation */
2342 goto out;
2343 }
2344
2345 if (!initial) {
2346 if (!new_affiliation->ldCount) {
2347 dev_warn(&instance->pdev->dev, "SR-IOV: Got new LD/VF "
2348 "affiliation for passive path for scsi%d\n",
2349 instance->host->host_no);
2350 retval = 1;
2351 goto out;
2352 }
2353 newmap = new_affiliation->map;
2354 savedmap = instance->vf_affiliation->map;
2355 thisVf = new_affiliation->thisVf;
2356 for (i = 0 ; i < new_affiliation->ldCount; i++) {
2357 found = 0;
2358 for (j = 0; j < instance->vf_affiliation->ldCount;
2359 j++) {
2360 if (newmap->ref.targetId ==
2361 savedmap->ref.targetId) {
2362 found = 1;
2363 if (newmap->policy[thisVf] !=
2364 savedmap->policy[thisVf]) {
2365 doscan = 1;
2366 goto out;
2367 }
2368 }
2369 savedmap = (struct MR_LD_VF_MAP *)
2370 ((unsigned char *)savedmap +
2371 savedmap->size);
2372 }
2373 if (!found && newmap->policy[thisVf] !=
2374 MR_LD_ACCESS_HIDDEN) {
2375 doscan = 1;
2376 goto out;
2377 }
2378 newmap = (struct MR_LD_VF_MAP *)
2379 ((unsigned char *)newmap + newmap->size);
2380 }
2381
2382 newmap = new_affiliation->map;
2383 savedmap = instance->vf_affiliation->map;
2384
2385 for (i = 0 ; i < instance->vf_affiliation->ldCount; i++) {
2386 found = 0;
2387 for (j = 0 ; j < new_affiliation->ldCount; j++) {
2388 if (savedmap->ref.targetId ==
2389 newmap->ref.targetId) {
2390 found = 1;
2391 if (savedmap->policy[thisVf] !=
2392 newmap->policy[thisVf]) {
2393 doscan = 1;
2394 goto out;
2395 }
2396 }
2397 newmap = (struct MR_LD_VF_MAP *)
2398 ((unsigned char *)newmap +
2399 newmap->size);
2400 }
2401 if (!found && savedmap->policy[thisVf] !=
2402 MR_LD_ACCESS_HIDDEN) {
2403 doscan = 1;
2404 goto out;
2405 }
2406 savedmap = (struct MR_LD_VF_MAP *)
2407 ((unsigned char *)savedmap +
2408 savedmap->size);
2409 }
2410 }
2411 out:
2412 if (doscan) {
2413 dev_warn(&instance->pdev->dev, "SR-IOV: Got new LD/VF "
2414 "affiliation for scsi%d\n", instance->host->host_no);
2415 memcpy(instance->vf_affiliation, new_affiliation,
2416 new_affiliation->size);
2417 retval = 1;
2418 }
2419
2420 if (new_affiliation)
2421 pci_free_consistent(instance->pdev,
2422 (MAX_LOGICAL_DRIVES + 1) *
2423 sizeof(struct MR_LD_VF_AFFILIATION),
2424 new_affiliation, new_affiliation_h);
2425 megasas_return_cmd(instance, cmd);
2426
2427 return retval;
2428 }
2429
2430 /* This function will get the current SR-IOV LD/VF affiliation */
2431 static int megasas_get_ld_vf_affiliation(struct megasas_instance *instance,
2432 int initial)
2433 {
2434 int retval;
2435
2436 if (instance->PlasmaFW111)
2437 retval = megasas_get_ld_vf_affiliation_111(instance, initial);
2438 else
2439 retval = megasas_get_ld_vf_affiliation_12(instance, initial);
2440 return retval;
2441 }
2442
2443 /* This function will tell FW to start the SR-IOV heartbeat */
2444 int megasas_sriov_start_heartbeat(struct megasas_instance *instance,
2445 int initial)
2446 {
2447 struct megasas_cmd *cmd;
2448 struct megasas_dcmd_frame *dcmd;
2449 int retval = 0;
2450
2451 cmd = megasas_get_cmd(instance);
2452
2453 if (!cmd) {
2454 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_sriov_start_heartbeat: "
2455 "Failed to get cmd for scsi%d\n",
2456 instance->host->host_no);
2457 return -ENOMEM;
2458 }
2459
2460 dcmd = &cmd->frame->dcmd;
2461
2462 if (initial) {
2463 instance->hb_host_mem =
2464 pci_zalloc_consistent(instance->pdev,
2465 sizeof(struct MR_CTRL_HB_HOST_MEM),
2466 &instance->hb_host_mem_h);
2467 if (!instance->hb_host_mem) {
2468 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate"
2469 " memory for heartbeat host memory for scsi%d\n",
2470 instance->host->host_no);
2471 retval = -ENOMEM;
2472 goto out;
2473 }
2474 }
2475
2476 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
2477
2478 dcmd->mbox.s[0] = cpu_to_le16(sizeof(struct MR_CTRL_HB_HOST_MEM));
2479 dcmd->cmd = MFI_CMD_DCMD;
2480 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
2481 dcmd->sge_count = 1;
2482 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_BOTH);
2483 dcmd->timeout = 0;
2484 dcmd->pad_0 = 0;
2485 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_CTRL_HB_HOST_MEM));
2486 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_SHARED_HOST_MEM_ALLOC);
2487 dcmd->sgl.sge32[0].phys_addr = cpu_to_le32(instance->hb_host_mem_h);
2488 dcmd->sgl.sge32[0].length = cpu_to_le32(sizeof(struct MR_CTRL_HB_HOST_MEM));
2489
2490 dev_warn(&instance->pdev->dev, "SR-IOV: Starting heartbeat for scsi%d\n",
2491 instance->host->host_no);
2492
2493 if (instance->ctrl_context && !instance->mask_interrupts)
2494 retval = megasas_issue_blocked_cmd(instance, cmd,
2495 MEGASAS_ROUTINE_WAIT_TIME_VF);
2496 else
2497 retval = megasas_issue_polled(instance, cmd);
2498
2499 if (retval) {
2500 dev_warn(&instance->pdev->dev, "SR-IOV: MR_DCMD_CTRL_SHARED_HOST"
2501 "_MEM_ALLOC DCMD %s for scsi%d\n",
2502 (dcmd->cmd_status == MFI_STAT_INVALID_STATUS) ?
2503 "timed out" : "failed", instance->host->host_no);
2504 retval = 1;
2505 }
2506
2507 out:
2508 megasas_return_cmd(instance, cmd);
2509
2510 return retval;
2511 }
2512
2513 /* Handler for SR-IOV heartbeat */
2514 void megasas_sriov_heartbeat_handler(unsigned long instance_addr)
2515 {
2516 struct megasas_instance *instance =
2517 (struct megasas_instance *)instance_addr;
2518
2519 if (instance->hb_host_mem->HB.fwCounter !=
2520 instance->hb_host_mem->HB.driverCounter) {
2521 instance->hb_host_mem->HB.driverCounter =
2522 instance->hb_host_mem->HB.fwCounter;
2523 mod_timer(&instance->sriov_heartbeat_timer,
2524 jiffies + MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF);
2525 } else {
2526 dev_warn(&instance->pdev->dev, "SR-IOV: Heartbeat never "
2527 "completed for scsi%d\n", instance->host->host_no);
2528 schedule_work(&instance->work_init);
2529 }
2530 }
2531
2532 /**
2533 * megasas_wait_for_outstanding - Wait for all outstanding cmds
2534 * @instance: Adapter soft state
2535 *
2536 * This function waits for up to MEGASAS_RESET_WAIT_TIME seconds for FW to
2537 * complete all its outstanding commands. Returns error if one or more IOs
2538 * are pending after this time period. It also marks the controller dead.
2539 */
2540 static int megasas_wait_for_outstanding(struct megasas_instance *instance)
2541 {
2542 int i, sl, outstanding;
2543 u32 reset_index;
2544 u32 wait_time = MEGASAS_RESET_WAIT_TIME;
2545 unsigned long flags;
2546 struct list_head clist_local;
2547 struct megasas_cmd *reset_cmd;
2548 u32 fw_state;
2549
2550 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
2551 dev_info(&instance->pdev->dev, "%s:%d HBA is killed.\n",
2552 __func__, __LINE__);
2553 return FAILED;
2554 }
2555
2556 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) {
2557
2558 INIT_LIST_HEAD(&clist_local);
2559 spin_lock_irqsave(&instance->hba_lock, flags);
2560 list_splice_init(&instance->internal_reset_pending_q,
2561 &clist_local);
2562 spin_unlock_irqrestore(&instance->hba_lock, flags);
2563
2564 dev_notice(&instance->pdev->dev, "HBA reset wait ...\n");
2565 for (i = 0; i < wait_time; i++) {
2566 msleep(1000);
2567 if (atomic_read(&instance->adprecovery) == MEGASAS_HBA_OPERATIONAL)
2568 break;
2569 }
2570
2571 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) {
2572 dev_notice(&instance->pdev->dev, "reset: Stopping HBA.\n");
2573 atomic_set(&instance->adprecovery, MEGASAS_HW_CRITICAL_ERROR);
2574 return FAILED;
2575 }
2576
2577 reset_index = 0;
2578 while (!list_empty(&clist_local)) {
2579 reset_cmd = list_entry((&clist_local)->next,
2580 struct megasas_cmd, list);
2581 list_del_init(&reset_cmd->list);
2582 if (reset_cmd->scmd) {
2583 reset_cmd->scmd->result = DID_REQUEUE << 16;
2584 dev_notice(&instance->pdev->dev, "%d:%p reset [%02x]\n",
2585 reset_index, reset_cmd,
2586 reset_cmd->scmd->cmnd[0]);
2587
2588 reset_cmd->scmd->scsi_done(reset_cmd->scmd);
2589 megasas_return_cmd(instance, reset_cmd);
2590 } else if (reset_cmd->sync_cmd) {
2591 dev_notice(&instance->pdev->dev, "%p synch cmds"
2592 "reset queue\n",
2593 reset_cmd);
2594
2595 reset_cmd->cmd_status_drv = MFI_STAT_INVALID_STATUS;
2596 instance->instancet->fire_cmd(instance,
2597 reset_cmd->frame_phys_addr,
2598 0, instance->reg_set);
2599 } else {
2600 dev_notice(&instance->pdev->dev, "%p unexpected"
2601 "cmds lst\n",
2602 reset_cmd);
2603 }
2604 reset_index++;
2605 }
2606
2607 return SUCCESS;
2608 }
2609
2610 for (i = 0; i < resetwaittime; i++) {
2611 outstanding = atomic_read(&instance->fw_outstanding);
2612
2613 if (!outstanding)
2614 break;
2615
2616 if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) {
2617 dev_notice(&instance->pdev->dev, "[%2d]waiting for %d "
2618 "commands to complete\n",i,outstanding);
2619 /*
2620 * Call cmd completion routine. Cmd to be
2621 * be completed directly without depending on isr.
2622 */
2623 megasas_complete_cmd_dpc((unsigned long)instance);
2624 }
2625
2626 msleep(1000);
2627 }
2628
2629 i = 0;
2630 outstanding = atomic_read(&instance->fw_outstanding);
2631 fw_state = instance->instancet->read_fw_status_reg(instance->reg_set) & MFI_STATE_MASK;
2632
2633 if ((!outstanding && (fw_state == MFI_STATE_OPERATIONAL)))
2634 goto no_outstanding;
2635
2636 if (instance->disableOnlineCtrlReset)
2637 goto kill_hba_and_failed;
2638 do {
2639 if ((fw_state == MFI_STATE_FAULT) || atomic_read(&instance->fw_outstanding)) {
2640 dev_info(&instance->pdev->dev,
2641 "%s:%d waiting_for_outstanding: before issue OCR. FW state = 0x%x, oustanding 0x%x\n",
2642 __func__, __LINE__, fw_state, atomic_read(&instance->fw_outstanding));
2643 if (i == 3)
2644 goto kill_hba_and_failed;
2645 megasas_do_ocr(instance);
2646
2647 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
2648 dev_info(&instance->pdev->dev, "%s:%d OCR failed and HBA is killed.\n",
2649 __func__, __LINE__);
2650 return FAILED;
2651 }
2652 dev_info(&instance->pdev->dev, "%s:%d waiting_for_outstanding: after issue OCR.\n",
2653 __func__, __LINE__);
2654
2655 for (sl = 0; sl < 10; sl++)
2656 msleep(500);
2657
2658 outstanding = atomic_read(&instance->fw_outstanding);
2659
2660 fw_state = instance->instancet->read_fw_status_reg(instance->reg_set) & MFI_STATE_MASK;
2661 if ((!outstanding && (fw_state == MFI_STATE_OPERATIONAL)))
2662 goto no_outstanding;
2663 }
2664 i++;
2665 } while (i <= 3);
2666
2667 no_outstanding:
2668
2669 dev_info(&instance->pdev->dev, "%s:%d no more pending commands remain after reset handling.\n",
2670 __func__, __LINE__);
2671 return SUCCESS;
2672
2673 kill_hba_and_failed:
2674
2675 /* Reset not supported, kill adapter */
2676 dev_info(&instance->pdev->dev, "%s:%d killing adapter scsi%d"
2677 " disableOnlineCtrlReset %d fw_outstanding %d \n",
2678 __func__, __LINE__, instance->host->host_no, instance->disableOnlineCtrlReset,
2679 atomic_read(&instance->fw_outstanding));
2680 megasas_dump_pending_frames(instance);
2681 megaraid_sas_kill_hba(instance);
2682
2683 return FAILED;
2684 }
2685
2686 /**
2687 * megasas_generic_reset - Generic reset routine
2688 * @scmd: Mid-layer SCSI command
2689 *
2690 * This routine implements a generic reset handler for device, bus and host
2691 * reset requests. Device, bus and host specific reset handlers can use this
2692 * function after they do their specific tasks.
2693 */
2694 static int megasas_generic_reset(struct scsi_cmnd *scmd)
2695 {
2696 int ret_val;
2697 struct megasas_instance *instance;
2698
2699 instance = (struct megasas_instance *)scmd->device->host->hostdata;
2700
2701 scmd_printk(KERN_NOTICE, scmd, "megasas: RESET cmd=%x retries=%x\n",
2702 scmd->cmnd[0], scmd->retries);
2703
2704 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
2705 dev_err(&instance->pdev->dev, "cannot recover from previous reset failures\n");
2706 return FAILED;
2707 }
2708
2709 ret_val = megasas_wait_for_outstanding(instance);
2710 if (ret_val == SUCCESS)
2711 dev_notice(&instance->pdev->dev, "reset successful\n");
2712 else
2713 dev_err(&instance->pdev->dev, "failed to do reset\n");
2714
2715 return ret_val;
2716 }
2717
2718 /**
2719 * megasas_reset_timer - quiesce the adapter if required
2720 * @scmd: scsi cmnd
2721 *
2722 * Sets the FW busy flag and reduces the host->can_queue if the
2723 * cmd has not been completed within the timeout period.
2724 */
2725 static enum
2726 blk_eh_timer_return megasas_reset_timer(struct scsi_cmnd *scmd)
2727 {
2728 struct megasas_instance *instance;
2729 unsigned long flags;
2730
2731 if (time_after(jiffies, scmd->jiffies_at_alloc +
2732 (scmd_timeout * 2) * HZ)) {
2733 return BLK_EH_NOT_HANDLED;
2734 }
2735
2736 instance = (struct megasas_instance *)scmd->device->host->hostdata;
2737 if (!(instance->flag & MEGASAS_FW_BUSY)) {
2738 /* FW is busy, throttle IO */
2739 spin_lock_irqsave(instance->host->host_lock, flags);
2740
2741 instance->host->can_queue = instance->throttlequeuedepth;
2742 instance->last_time = jiffies;
2743 instance->flag |= MEGASAS_FW_BUSY;
2744
2745 spin_unlock_irqrestore(instance->host->host_lock, flags);
2746 }
2747 return BLK_EH_RESET_TIMER;
2748 }
2749
2750 /**
2751 * megasas_dump_frame - This function will dump MPT/MFI frame
2752 */
2753 static inline void
2754 megasas_dump_frame(void *mpi_request, int sz)
2755 {
2756 int i;
2757 __le32 *mfp = (__le32 *)mpi_request;
2758
2759 printk(KERN_INFO "IO request frame:\n\t");
2760 for (i = 0; i < sz / sizeof(__le32); i++) {
2761 if (i && ((i % 8) == 0))
2762 printk("\n\t");
2763 printk("%08x ", le32_to_cpu(mfp[i]));
2764 }
2765 printk("\n");
2766 }
2767
2768 /**
2769 * megasas_reset_bus_host - Bus & host reset handler entry point
2770 */
2771 static int megasas_reset_bus_host(struct scsi_cmnd *scmd)
2772 {
2773 int ret;
2774 struct megasas_instance *instance;
2775
2776 instance = (struct megasas_instance *)scmd->device->host->hostdata;
2777
2778 scmd_printk(KERN_INFO, scmd,
2779 "Controller reset is requested due to IO timeout\n"
2780 "SCSI command pointer: (%p)\t SCSI host state: %d\t"
2781 " SCSI host busy: %d\t FW outstanding: %d\n",
2782 scmd, scmd->device->host->shost_state,
2783 atomic_read((atomic_t *)&scmd->device->host->host_busy),
2784 atomic_read(&instance->fw_outstanding));
2785
2786 /*
2787 * First wait for all commands to complete
2788 */
2789 if (instance->ctrl_context) {
2790 struct megasas_cmd_fusion *cmd;
2791 cmd = (struct megasas_cmd_fusion *)scmd->SCp.ptr;
2792 if (cmd)
2793 megasas_dump_frame(cmd->io_request,
2794 sizeof(struct MPI2_RAID_SCSI_IO_REQUEST));
2795 ret = megasas_reset_fusion(scmd->device->host,
2796 SCSIIO_TIMEOUT_OCR);
2797 } else
2798 ret = megasas_generic_reset(scmd);
2799
2800 return ret;
2801 }
2802
2803 /**
2804 * megasas_task_abort - Issues task abort request to firmware
2805 * (supported only for fusion adapters)
2806 * @scmd: SCSI command pointer
2807 */
2808 static int megasas_task_abort(struct scsi_cmnd *scmd)
2809 {
2810 int ret;
2811 struct megasas_instance *instance;
2812
2813 instance = (struct megasas_instance *)scmd->device->host->hostdata;
2814
2815 if (instance->ctrl_context)
2816 ret = megasas_task_abort_fusion(scmd);
2817 else {
2818 sdev_printk(KERN_NOTICE, scmd->device, "TASK ABORT not supported\n");
2819 ret = FAILED;
2820 }
2821
2822 return ret;
2823 }
2824
2825 /**
2826 * megasas_reset_target: Issues target reset request to firmware
2827 * (supported only for fusion adapters)
2828 * @scmd: SCSI command pointer
2829 */
2830 static int megasas_reset_target(struct scsi_cmnd *scmd)
2831 {
2832 int ret;
2833 struct megasas_instance *instance;
2834
2835 instance = (struct megasas_instance *)scmd->device->host->hostdata;
2836
2837 if (instance->ctrl_context)
2838 ret = megasas_reset_target_fusion(scmd);
2839 else {
2840 sdev_printk(KERN_NOTICE, scmd->device, "TARGET RESET not supported\n");
2841 ret = FAILED;
2842 }
2843
2844 return ret;
2845 }
2846
2847 /**
2848 * megasas_bios_param - Returns disk geometry for a disk
2849 * @sdev: device handle
2850 * @bdev: block device
2851 * @capacity: drive capacity
2852 * @geom: geometry parameters
2853 */
2854 static int
2855 megasas_bios_param(struct scsi_device *sdev, struct block_device *bdev,
2856 sector_t capacity, int geom[])
2857 {
2858 int heads;
2859 int sectors;
2860 sector_t cylinders;
2861 unsigned long tmp;
2862
2863 /* Default heads (64) & sectors (32) */
2864 heads = 64;
2865 sectors = 32;
2866
2867 tmp = heads * sectors;
2868 cylinders = capacity;
2869
2870 sector_div(cylinders, tmp);
2871
2872 /*
2873 * Handle extended translation size for logical drives > 1Gb
2874 */
2875
2876 if (capacity >= 0x200000) {
2877 heads = 255;
2878 sectors = 63;
2879 tmp = heads*sectors;
2880 cylinders = capacity;
2881 sector_div(cylinders, tmp);
2882 }
2883
2884 geom[0] = heads;
2885 geom[1] = sectors;
2886 geom[2] = cylinders;
2887
2888 return 0;
2889 }
2890
2891 static void megasas_aen_polling(struct work_struct *work);
2892
2893 /**
2894 * megasas_service_aen - Processes an event notification
2895 * @instance: Adapter soft state
2896 * @cmd: AEN command completed by the ISR
2897 *
2898 * For AEN, driver sends a command down to FW that is held by the FW till an
2899 * event occurs. When an event of interest occurs, FW completes the command
2900 * that it was previously holding.
2901 *
2902 * This routines sends SIGIO signal to processes that have registered with the
2903 * driver for AEN.
2904 */
2905 static void
2906 megasas_service_aen(struct megasas_instance *instance, struct megasas_cmd *cmd)
2907 {
2908 unsigned long flags;
2909
2910 /*
2911 * Don't signal app if it is just an aborted previously registered aen
2912 */
2913 if ((!cmd->abort_aen) && (instance->unload == 0)) {
2914 spin_lock_irqsave(&poll_aen_lock, flags);
2915 megasas_poll_wait_aen = 1;
2916 spin_unlock_irqrestore(&poll_aen_lock, flags);
2917 wake_up(&megasas_poll_wait);
2918 kill_fasync(&megasas_async_queue, SIGIO, POLL_IN);
2919 }
2920 else
2921 cmd->abort_aen = 0;
2922
2923 instance->aen_cmd = NULL;
2924
2925 megasas_return_cmd(instance, cmd);
2926
2927 if ((instance->unload == 0) &&
2928 ((instance->issuepend_done == 1))) {
2929 struct megasas_aen_event *ev;
2930
2931 ev = kzalloc(sizeof(*ev), GFP_ATOMIC);
2932 if (!ev) {
2933 dev_err(&instance->pdev->dev, "megasas_service_aen: out of memory\n");
2934 } else {
2935 ev->instance = instance;
2936 instance->ev = ev;
2937 INIT_DELAYED_WORK(&ev->hotplug_work,
2938 megasas_aen_polling);
2939 schedule_delayed_work(&ev->hotplug_work, 0);
2940 }
2941 }
2942 }
2943
2944 static ssize_t
2945 megasas_fw_crash_buffer_store(struct device *cdev,
2946 struct device_attribute *attr, const char *buf, size_t count)
2947 {
2948 struct Scsi_Host *shost = class_to_shost(cdev);
2949 struct megasas_instance *instance =
2950 (struct megasas_instance *) shost->hostdata;
2951 int val = 0;
2952 unsigned long flags;
2953
2954 if (kstrtoint(buf, 0, &val) != 0)
2955 return -EINVAL;
2956
2957 spin_lock_irqsave(&instance->crashdump_lock, flags);
2958 instance->fw_crash_buffer_offset = val;
2959 spin_unlock_irqrestore(&instance->crashdump_lock, flags);
2960 return strlen(buf);
2961 }
2962
2963 static ssize_t
2964 megasas_fw_crash_buffer_show(struct device *cdev,
2965 struct device_attribute *attr, char *buf)
2966 {
2967 struct Scsi_Host *shost = class_to_shost(cdev);
2968 struct megasas_instance *instance =
2969 (struct megasas_instance *) shost->hostdata;
2970 u32 size;
2971 unsigned long buff_addr;
2972 unsigned long dmachunk = CRASH_DMA_BUF_SIZE;
2973 unsigned long src_addr;
2974 unsigned long flags;
2975 u32 buff_offset;
2976
2977 spin_lock_irqsave(&instance->crashdump_lock, flags);
2978 buff_offset = instance->fw_crash_buffer_offset;
2979 if (!instance->crash_dump_buf &&
2980 !((instance->fw_crash_state == AVAILABLE) ||
2981 (instance->fw_crash_state == COPYING))) {
2982 dev_err(&instance->pdev->dev,
2983 "Firmware crash dump is not available\n");
2984 spin_unlock_irqrestore(&instance->crashdump_lock, flags);
2985 return -EINVAL;
2986 }
2987
2988 buff_addr = (unsigned long) buf;
2989
2990 if (buff_offset > (instance->fw_crash_buffer_size * dmachunk)) {
2991 dev_err(&instance->pdev->dev,
2992 "Firmware crash dump offset is out of range\n");
2993 spin_unlock_irqrestore(&instance->crashdump_lock, flags);
2994 return 0;
2995 }
2996
2997 size = (instance->fw_crash_buffer_size * dmachunk) - buff_offset;
2998 size = (size >= PAGE_SIZE) ? (PAGE_SIZE - 1) : size;
2999
3000 src_addr = (unsigned long)instance->crash_buf[buff_offset / dmachunk] +
3001 (buff_offset % dmachunk);
3002 memcpy(buf, (void *)src_addr, size);
3003 spin_unlock_irqrestore(&instance->crashdump_lock, flags);
3004
3005 return size;
3006 }
3007
3008 static ssize_t
3009 megasas_fw_crash_buffer_size_show(struct device *cdev,
3010 struct device_attribute *attr, char *buf)
3011 {
3012 struct Scsi_Host *shost = class_to_shost(cdev);
3013 struct megasas_instance *instance =
3014 (struct megasas_instance *) shost->hostdata;
3015
3016 return snprintf(buf, PAGE_SIZE, "%ld\n", (unsigned long)
3017 ((instance->fw_crash_buffer_size) * 1024 * 1024)/PAGE_SIZE);
3018 }
3019
3020 static ssize_t
3021 megasas_fw_crash_state_store(struct device *cdev,
3022 struct device_attribute *attr, const char *buf, size_t count)
3023 {
3024 struct Scsi_Host *shost = class_to_shost(cdev);
3025 struct megasas_instance *instance =
3026 (struct megasas_instance *) shost->hostdata;
3027 int val = 0;
3028 unsigned long flags;
3029
3030 if (kstrtoint(buf, 0, &val) != 0)
3031 return -EINVAL;
3032
3033 if ((val <= AVAILABLE || val > COPY_ERROR)) {
3034 dev_err(&instance->pdev->dev, "application updates invalid "
3035 "firmware crash state\n");
3036 return -EINVAL;
3037 }
3038
3039 instance->fw_crash_state = val;
3040
3041 if ((val == COPIED) || (val == COPY_ERROR)) {
3042 spin_lock_irqsave(&instance->crashdump_lock, flags);
3043 megasas_free_host_crash_buffer(instance);
3044 spin_unlock_irqrestore(&instance->crashdump_lock, flags);
3045 if (val == COPY_ERROR)
3046 dev_info(&instance->pdev->dev, "application failed to "
3047 "copy Firmware crash dump\n");
3048 else
3049 dev_info(&instance->pdev->dev, "Firmware crash dump "
3050 "copied successfully\n");
3051 }
3052 return strlen(buf);
3053 }
3054
3055 static ssize_t
3056 megasas_fw_crash_state_show(struct device *cdev,
3057 struct device_attribute *attr, char *buf)
3058 {
3059 struct Scsi_Host *shost = class_to_shost(cdev);
3060 struct megasas_instance *instance =
3061 (struct megasas_instance *) shost->hostdata;
3062
3063 return snprintf(buf, PAGE_SIZE, "%d\n", instance->fw_crash_state);
3064 }
3065
3066 static ssize_t
3067 megasas_page_size_show(struct device *cdev,
3068 struct device_attribute *attr, char *buf)
3069 {
3070 return snprintf(buf, PAGE_SIZE, "%ld\n", (unsigned long)PAGE_SIZE - 1);
3071 }
3072
3073 static ssize_t
3074 megasas_ldio_outstanding_show(struct device *cdev, struct device_attribute *attr,
3075 char *buf)
3076 {
3077 struct Scsi_Host *shost = class_to_shost(cdev);
3078 struct megasas_instance *instance = (struct megasas_instance *)shost->hostdata;
3079
3080 return snprintf(buf, PAGE_SIZE, "%d\n", atomic_read(&instance->ldio_outstanding));
3081 }
3082
3083 static DEVICE_ATTR(fw_crash_buffer, S_IRUGO | S_IWUSR,
3084 megasas_fw_crash_buffer_show, megasas_fw_crash_buffer_store);
3085 static DEVICE_ATTR(fw_crash_buffer_size, S_IRUGO,
3086 megasas_fw_crash_buffer_size_show, NULL);
3087 static DEVICE_ATTR(fw_crash_state, S_IRUGO | S_IWUSR,
3088 megasas_fw_crash_state_show, megasas_fw_crash_state_store);
3089 static DEVICE_ATTR(page_size, S_IRUGO,
3090 megasas_page_size_show, NULL);
3091 static DEVICE_ATTR(ldio_outstanding, S_IRUGO,
3092 megasas_ldio_outstanding_show, NULL);
3093
3094 struct device_attribute *megaraid_host_attrs[] = {
3095 &dev_attr_fw_crash_buffer_size,
3096 &dev_attr_fw_crash_buffer,
3097 &dev_attr_fw_crash_state,
3098 &dev_attr_page_size,
3099 &dev_attr_ldio_outstanding,
3100 NULL,
3101 };
3102
3103 /*
3104 * Scsi host template for megaraid_sas driver
3105 */
3106 static struct scsi_host_template megasas_template = {
3107
3108 .module = THIS_MODULE,
3109 .name = "Avago SAS based MegaRAID driver",
3110 .proc_name = "megaraid_sas",
3111 .slave_configure = megasas_slave_configure,
3112 .slave_alloc = megasas_slave_alloc,
3113 .slave_destroy = megasas_slave_destroy,
3114 .queuecommand = megasas_queue_command,
3115 .eh_target_reset_handler = megasas_reset_target,
3116 .eh_abort_handler = megasas_task_abort,
3117 .eh_host_reset_handler = megasas_reset_bus_host,
3118 .eh_timed_out = megasas_reset_timer,
3119 .shost_attrs = megaraid_host_attrs,
3120 .bios_param = megasas_bios_param,
3121 .use_clustering = ENABLE_CLUSTERING,
3122 .change_queue_depth = scsi_change_queue_depth,
3123 .no_write_same = 1,
3124 };
3125
3126 /**
3127 * megasas_complete_int_cmd - Completes an internal command
3128 * @instance: Adapter soft state
3129 * @cmd: Command to be completed
3130 *
3131 * The megasas_issue_blocked_cmd() function waits for a command to complete
3132 * after it issues a command. This function wakes up that waiting routine by
3133 * calling wake_up() on the wait queue.
3134 */
3135 static void
3136 megasas_complete_int_cmd(struct megasas_instance *instance,
3137 struct megasas_cmd *cmd)
3138 {
3139 cmd->cmd_status_drv = cmd->frame->io.cmd_status;
3140 wake_up(&instance->int_cmd_wait_q);
3141 }
3142
3143 /**
3144 * megasas_complete_abort - Completes aborting a command
3145 * @instance: Adapter soft state
3146 * @cmd: Cmd that was issued to abort another cmd
3147 *
3148 * The megasas_issue_blocked_abort_cmd() function waits on abort_cmd_wait_q
3149 * after it issues an abort on a previously issued command. This function
3150 * wakes up all functions waiting on the same wait queue.
3151 */
3152 static void
3153 megasas_complete_abort(struct megasas_instance *instance,
3154 struct megasas_cmd *cmd)
3155 {
3156 if (cmd->sync_cmd) {
3157 cmd->sync_cmd = 0;
3158 cmd->cmd_status_drv = 0;
3159 wake_up(&instance->abort_cmd_wait_q);
3160 }
3161 }
3162
3163 /**
3164 * megasas_complete_cmd - Completes a command
3165 * @instance: Adapter soft state
3166 * @cmd: Command to be completed
3167 * @alt_status: If non-zero, use this value as status to
3168 * SCSI mid-layer instead of the value returned
3169 * by the FW. This should be used if caller wants
3170 * an alternate status (as in the case of aborted
3171 * commands)
3172 */
3173 void
3174 megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd,
3175 u8 alt_status)
3176 {
3177 int exception = 0;
3178 struct megasas_header *hdr = &cmd->frame->hdr;
3179 unsigned long flags;
3180 struct fusion_context *fusion = instance->ctrl_context;
3181 u32 opcode, status;
3182
3183 /* flag for the retry reset */
3184 cmd->retry_for_fw_reset = 0;
3185
3186 if (cmd->scmd)
3187 cmd->scmd->SCp.ptr = NULL;
3188
3189 switch (hdr->cmd) {
3190 case MFI_CMD_INVALID:
3191 /* Some older 1068 controller FW may keep a pended
3192 MR_DCMD_CTRL_EVENT_GET_INFO left over from the main kernel
3193 when booting the kdump kernel. Ignore this command to
3194 prevent a kernel panic on shutdown of the kdump kernel. */
3195 dev_warn(&instance->pdev->dev, "MFI_CMD_INVALID command "
3196 "completed\n");
3197 dev_warn(&instance->pdev->dev, "If you have a controller "
3198 "other than PERC5, please upgrade your firmware\n");
3199 break;
3200 case MFI_CMD_PD_SCSI_IO:
3201 case MFI_CMD_LD_SCSI_IO:
3202
3203 /*
3204 * MFI_CMD_PD_SCSI_IO and MFI_CMD_LD_SCSI_IO could have been
3205 * issued either through an IO path or an IOCTL path. If it
3206 * was via IOCTL, we will send it to internal completion.
3207 */
3208 if (cmd->sync_cmd) {
3209 cmd->sync_cmd = 0;
3210 megasas_complete_int_cmd(instance, cmd);
3211 break;
3212 }
3213
3214 case MFI_CMD_LD_READ:
3215 case MFI_CMD_LD_WRITE:
3216
3217 if (alt_status) {
3218 cmd->scmd->result = alt_status << 16;
3219 exception = 1;
3220 }
3221
3222 if (exception) {
3223
3224 atomic_dec(&instance->fw_outstanding);
3225
3226 scsi_dma_unmap(cmd->scmd);
3227 cmd->scmd->scsi_done(cmd->scmd);
3228 megasas_return_cmd(instance, cmd);
3229
3230 break;
3231 }
3232
3233 switch (hdr->cmd_status) {
3234
3235 case MFI_STAT_OK:
3236 cmd->scmd->result = DID_OK << 16;
3237 break;
3238
3239 case MFI_STAT_SCSI_IO_FAILED:
3240 case MFI_STAT_LD_INIT_IN_PROGRESS:
3241 cmd->scmd->result =
3242 (DID_ERROR << 16) | hdr->scsi_status;
3243 break;
3244
3245 case MFI_STAT_SCSI_DONE_WITH_ERROR:
3246
3247 cmd->scmd->result = (DID_OK << 16) | hdr->scsi_status;
3248
3249 if (hdr->scsi_status == SAM_STAT_CHECK_CONDITION) {
3250 memset(cmd->scmd->sense_buffer, 0,
3251 SCSI_SENSE_BUFFERSIZE);
3252 memcpy(cmd->scmd->sense_buffer, cmd->sense,
3253 hdr->sense_len);
3254
3255 cmd->scmd->result |= DRIVER_SENSE << 24;
3256 }
3257
3258 break;
3259
3260 case MFI_STAT_LD_OFFLINE:
3261 case MFI_STAT_DEVICE_NOT_FOUND:
3262 cmd->scmd->result = DID_BAD_TARGET << 16;
3263 break;
3264
3265 default:
3266 dev_printk(KERN_DEBUG, &instance->pdev->dev, "MFI FW status %#x\n",
3267 hdr->cmd_status);
3268 cmd->scmd->result = DID_ERROR << 16;
3269 break;
3270 }
3271
3272 atomic_dec(&instance->fw_outstanding);
3273
3274 scsi_dma_unmap(cmd->scmd);
3275 cmd->scmd->scsi_done(cmd->scmd);
3276 megasas_return_cmd(instance, cmd);
3277
3278 break;
3279
3280 case MFI_CMD_SMP:
3281 case MFI_CMD_STP:
3282 case MFI_CMD_DCMD:
3283 opcode = le32_to_cpu(cmd->frame->dcmd.opcode);
3284 /* Check for LD map update */
3285 if ((opcode == MR_DCMD_LD_MAP_GET_INFO)
3286 && (cmd->frame->dcmd.mbox.b[1] == 1)) {
3287 fusion->fast_path_io = 0;
3288 spin_lock_irqsave(instance->host->host_lock, flags);
3289 instance->map_update_cmd = NULL;
3290 if (cmd->frame->hdr.cmd_status != 0) {
3291 if (cmd->frame->hdr.cmd_status !=
3292 MFI_STAT_NOT_FOUND)
3293 dev_warn(&instance->pdev->dev, "map syncfailed, status = 0x%x\n",
3294 cmd->frame->hdr.cmd_status);
3295 else {
3296 megasas_return_cmd(instance, cmd);
3297 spin_unlock_irqrestore(
3298 instance->host->host_lock,
3299 flags);
3300 break;
3301 }
3302 } else
3303 instance->map_id++;
3304 megasas_return_cmd(instance, cmd);
3305
3306 /*
3307 * Set fast path IO to ZERO.
3308 * Validate Map will set proper value.
3309 * Meanwhile all IOs will go as LD IO.
3310 */
3311 if (MR_ValidateMapInfo(instance))
3312 fusion->fast_path_io = 1;
3313 else
3314 fusion->fast_path_io = 0;
3315 megasas_sync_map_info(instance);
3316 spin_unlock_irqrestore(instance->host->host_lock,
3317 flags);
3318 break;
3319 }
3320 if (opcode == MR_DCMD_CTRL_EVENT_GET_INFO ||
3321 opcode == MR_DCMD_CTRL_EVENT_GET) {
3322 spin_lock_irqsave(&poll_aen_lock, flags);
3323 megasas_poll_wait_aen = 0;
3324 spin_unlock_irqrestore(&poll_aen_lock, flags);
3325 }
3326
3327 /* FW has an updated PD sequence */
3328 if ((opcode == MR_DCMD_SYSTEM_PD_MAP_GET_INFO) &&
3329 (cmd->frame->dcmd.mbox.b[0] == 1)) {
3330
3331 spin_lock_irqsave(instance->host->host_lock, flags);
3332 status = cmd->frame->hdr.cmd_status;
3333 instance->jbod_seq_cmd = NULL;
3334 megasas_return_cmd(instance, cmd);
3335
3336 if (status == MFI_STAT_OK) {
3337 instance->pd_seq_map_id++;
3338 /* Re-register a pd sync seq num cmd */
3339 if (megasas_sync_pd_seq_num(instance, true))
3340 instance->use_seqnum_jbod_fp = false;
3341 } else
3342 instance->use_seqnum_jbod_fp = false;
3343
3344 spin_unlock_irqrestore(instance->host->host_lock, flags);
3345 break;
3346 }
3347
3348 /*
3349 * See if got an event notification
3350 */
3351 if (opcode == MR_DCMD_CTRL_EVENT_WAIT)
3352 megasas_service_aen(instance, cmd);
3353 else
3354 megasas_complete_int_cmd(instance, cmd);
3355
3356 break;
3357
3358 case MFI_CMD_ABORT:
3359 /*
3360 * Cmd issued to abort another cmd returned
3361 */
3362 megasas_complete_abort(instance, cmd);
3363 break;
3364
3365 default:
3366 dev_info(&instance->pdev->dev, "Unknown command completed! [0x%X]\n",
3367 hdr->cmd);
3368 break;
3369 }
3370 }
3371
3372 /**
3373 * megasas_issue_pending_cmds_again - issue all pending cmds
3374 * in FW again because of the fw reset
3375 * @instance: Adapter soft state
3376 */
3377 static inline void
3378 megasas_issue_pending_cmds_again(struct megasas_instance *instance)
3379 {
3380 struct megasas_cmd *cmd;
3381 struct list_head clist_local;
3382 union megasas_evt_class_locale class_locale;
3383 unsigned long flags;
3384 u32 seq_num;
3385
3386 INIT_LIST_HEAD(&clist_local);
3387 spin_lock_irqsave(&instance->hba_lock, flags);
3388 list_splice_init(&instance->internal_reset_pending_q, &clist_local);
3389 spin_unlock_irqrestore(&instance->hba_lock, flags);
3390
3391 while (!list_empty(&clist_local)) {
3392 cmd = list_entry((&clist_local)->next,
3393 struct megasas_cmd, list);
3394 list_del_init(&cmd->list);
3395
3396 if (cmd->sync_cmd || cmd->scmd) {
3397 dev_notice(&instance->pdev->dev, "command %p, %p:%d"
3398 "detected to be pending while HBA reset\n",
3399 cmd, cmd->scmd, cmd->sync_cmd);
3400
3401 cmd->retry_for_fw_reset++;
3402
3403 if (cmd->retry_for_fw_reset == 3) {
3404 dev_notice(&instance->pdev->dev, "cmd %p, %p:%d"
3405 "was tried multiple times during reset."
3406 "Shutting down the HBA\n",
3407 cmd, cmd->scmd, cmd->sync_cmd);
3408 instance->instancet->disable_intr(instance);
3409 atomic_set(&instance->fw_reset_no_pci_access, 1);
3410 megaraid_sas_kill_hba(instance);
3411 return;
3412 }
3413 }
3414
3415 if (cmd->sync_cmd == 1) {
3416 if (cmd->scmd) {
3417 dev_notice(&instance->pdev->dev, "unexpected"
3418 "cmd attached to internal command!\n");
3419 }
3420 dev_notice(&instance->pdev->dev, "%p synchronous cmd"
3421 "on the internal reset queue,"
3422 "issue it again.\n", cmd);
3423 cmd->cmd_status_drv = MFI_STAT_INVALID_STATUS;
3424 instance->instancet->fire_cmd(instance,
3425 cmd->frame_phys_addr,
3426 0, instance->reg_set);
3427 } else if (cmd->scmd) {
3428 dev_notice(&instance->pdev->dev, "%p scsi cmd [%02x]"
3429 "detected on the internal queue, issue again.\n",
3430 cmd, cmd->scmd->cmnd[0]);
3431
3432 atomic_inc(&instance->fw_outstanding);
3433 instance->instancet->fire_cmd(instance,
3434 cmd->frame_phys_addr,
3435 cmd->frame_count-1, instance->reg_set);
3436 } else {
3437 dev_notice(&instance->pdev->dev, "%p unexpected cmd on the"
3438 "internal reset defer list while re-issue!!\n",
3439 cmd);
3440 }
3441 }
3442
3443 if (instance->aen_cmd) {
3444 dev_notice(&instance->pdev->dev, "aen_cmd in def process\n");
3445 megasas_return_cmd(instance, instance->aen_cmd);
3446
3447 instance->aen_cmd = NULL;
3448 }
3449
3450 /*
3451 * Initiate AEN (Asynchronous Event Notification)
3452 */
3453 seq_num = instance->last_seq_num;
3454 class_locale.members.reserved = 0;
3455 class_locale.members.locale = MR_EVT_LOCALE_ALL;
3456 class_locale.members.class = MR_EVT_CLASS_DEBUG;
3457
3458 megasas_register_aen(instance, seq_num, class_locale.word);
3459 }
3460
3461 /**
3462 * Move the internal reset pending commands to a deferred queue.
3463 *
3464 * We move the commands pending at internal reset time to a
3465 * pending queue. This queue would be flushed after successful
3466 * completion of the internal reset sequence. if the internal reset
3467 * did not complete in time, the kernel reset handler would flush
3468 * these commands.
3469 **/
3470 static void
3471 megasas_internal_reset_defer_cmds(struct megasas_instance *instance)
3472 {
3473 struct megasas_cmd *cmd;
3474 int i;
3475 u16 max_cmd = instance->max_fw_cmds;
3476 u32 defer_index;
3477 unsigned long flags;
3478
3479 defer_index = 0;
3480 spin_lock_irqsave(&instance->mfi_pool_lock, flags);
3481 for (i = 0; i < max_cmd; i++) {
3482 cmd = instance->cmd_list[i];
3483 if (cmd->sync_cmd == 1 || cmd->scmd) {
3484 dev_notice(&instance->pdev->dev, "moving cmd[%d]:%p:%d:%p"
3485 "on the defer queue as internal\n",
3486 defer_index, cmd, cmd->sync_cmd, cmd->scmd);
3487
3488 if (!list_empty(&cmd->list)) {
3489 dev_notice(&instance->pdev->dev, "ERROR while"
3490 " moving this cmd:%p, %d %p, it was"
3491 "discovered on some list?\n",
3492 cmd, cmd->sync_cmd, cmd->scmd);
3493
3494 list_del_init(&cmd->list);
3495 }
3496 defer_index++;
3497 list_add_tail(&cmd->list,
3498 &instance->internal_reset_pending_q);
3499 }
3500 }
3501 spin_unlock_irqrestore(&instance->mfi_pool_lock, flags);
3502 }
3503
3504
3505 static void
3506 process_fw_state_change_wq(struct work_struct *work)
3507 {
3508 struct megasas_instance *instance =
3509 container_of(work, struct megasas_instance, work_init);
3510 u32 wait;
3511 unsigned long flags;
3512
3513 if (atomic_read(&instance->adprecovery) != MEGASAS_ADPRESET_SM_INFAULT) {
3514 dev_notice(&instance->pdev->dev, "error, recovery st %x\n",
3515 atomic_read(&instance->adprecovery));
3516 return ;
3517 }
3518
3519 if (atomic_read(&instance->adprecovery) == MEGASAS_ADPRESET_SM_INFAULT) {
3520 dev_notice(&instance->pdev->dev, "FW detected to be in fault"
3521 "state, restarting it...\n");
3522
3523 instance->instancet->disable_intr(instance);
3524 atomic_set(&instance->fw_outstanding, 0);
3525
3526 atomic_set(&instance->fw_reset_no_pci_access, 1);
3527 instance->instancet->adp_reset(instance, instance->reg_set);
3528 atomic_set(&instance->fw_reset_no_pci_access, 0);
3529
3530 dev_notice(&instance->pdev->dev, "FW restarted successfully,"
3531 "initiating next stage...\n");
3532
3533 dev_notice(&instance->pdev->dev, "HBA recovery state machine,"
3534 "state 2 starting...\n");
3535
3536 /* waiting for about 20 second before start the second init */
3537 for (wait = 0; wait < 30; wait++) {
3538 msleep(1000);
3539 }
3540
3541 if (megasas_transition_to_ready(instance, 1)) {
3542 dev_notice(&instance->pdev->dev, "adapter not ready\n");
3543
3544 atomic_set(&instance->fw_reset_no_pci_access, 1);
3545 megaraid_sas_kill_hba(instance);
3546 return ;
3547 }
3548
3549 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS1064R) ||
3550 (instance->pdev->device == PCI_DEVICE_ID_DELL_PERC5) ||
3551 (instance->pdev->device == PCI_DEVICE_ID_LSI_VERDE_ZCR)
3552 ) {
3553 *instance->consumer = *instance->producer;
3554 } else {
3555 *instance->consumer = 0;
3556 *instance->producer = 0;
3557 }
3558
3559 megasas_issue_init_mfi(instance);
3560
3561 spin_lock_irqsave(&instance->hba_lock, flags);
3562 atomic_set(&instance->adprecovery, MEGASAS_HBA_OPERATIONAL);
3563 spin_unlock_irqrestore(&instance->hba_lock, flags);
3564 instance->instancet->enable_intr(instance);
3565
3566 megasas_issue_pending_cmds_again(instance);
3567 instance->issuepend_done = 1;
3568 }
3569 }
3570
3571 /**
3572 * megasas_deplete_reply_queue - Processes all completed commands
3573 * @instance: Adapter soft state
3574 * @alt_status: Alternate status to be returned to
3575 * SCSI mid-layer instead of the status
3576 * returned by the FW
3577 * Note: this must be called with hba lock held
3578 */
3579 static int
3580 megasas_deplete_reply_queue(struct megasas_instance *instance,
3581 u8 alt_status)
3582 {
3583 u32 mfiStatus;
3584 u32 fw_state;
3585
3586 if ((mfiStatus = instance->instancet->check_reset(instance,
3587 instance->reg_set)) == 1) {
3588 return IRQ_HANDLED;
3589 }
3590
3591 if ((mfiStatus = instance->instancet->clear_intr(
3592 instance->reg_set)
3593 ) == 0) {
3594 /* Hardware may not set outbound_intr_status in MSI-X mode */
3595 if (!instance->msix_vectors)
3596 return IRQ_NONE;
3597 }
3598
3599 instance->mfiStatus = mfiStatus;
3600
3601 if ((mfiStatus & MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE)) {
3602 fw_state = instance->instancet->read_fw_status_reg(
3603 instance->reg_set) & MFI_STATE_MASK;
3604
3605 if (fw_state != MFI_STATE_FAULT) {
3606 dev_notice(&instance->pdev->dev, "fw state:%x\n",
3607 fw_state);
3608 }
3609
3610 if ((fw_state == MFI_STATE_FAULT) &&
3611 (instance->disableOnlineCtrlReset == 0)) {
3612 dev_notice(&instance->pdev->dev, "wait adp restart\n");
3613
3614 if ((instance->pdev->device ==
3615 PCI_DEVICE_ID_LSI_SAS1064R) ||
3616 (instance->pdev->device ==
3617 PCI_DEVICE_ID_DELL_PERC5) ||
3618 (instance->pdev->device ==
3619 PCI_DEVICE_ID_LSI_VERDE_ZCR)) {
3620
3621 *instance->consumer =
3622 cpu_to_le32(MEGASAS_ADPRESET_INPROG_SIGN);
3623 }
3624
3625
3626 instance->instancet->disable_intr(instance);
3627 atomic_set(&instance->adprecovery, MEGASAS_ADPRESET_SM_INFAULT);
3628 instance->issuepend_done = 0;
3629
3630 atomic_set(&instance->fw_outstanding, 0);
3631 megasas_internal_reset_defer_cmds(instance);
3632
3633 dev_notice(&instance->pdev->dev, "fwState=%x, stage:%d\n",
3634 fw_state, atomic_read(&instance->adprecovery));
3635
3636 schedule_work(&instance->work_init);
3637 return IRQ_HANDLED;
3638
3639 } else {
3640 dev_notice(&instance->pdev->dev, "fwstate:%x, dis_OCR=%x\n",
3641 fw_state, instance->disableOnlineCtrlReset);
3642 }
3643 }
3644
3645 tasklet_schedule(&instance->isr_tasklet);
3646 return IRQ_HANDLED;
3647 }
3648 /**
3649 * megasas_isr - isr entry point
3650 */
3651 static irqreturn_t megasas_isr(int irq, void *devp)
3652 {
3653 struct megasas_irq_context *irq_context = devp;
3654 struct megasas_instance *instance = irq_context->instance;
3655 unsigned long flags;
3656 irqreturn_t rc;
3657
3658 if (atomic_read(&instance->fw_reset_no_pci_access))
3659 return IRQ_HANDLED;
3660
3661 spin_lock_irqsave(&instance->hba_lock, flags);
3662 rc = megasas_deplete_reply_queue(instance, DID_OK);
3663 spin_unlock_irqrestore(&instance->hba_lock, flags);
3664
3665 return rc;
3666 }
3667
3668 /**
3669 * megasas_transition_to_ready - Move the FW to READY state
3670 * @instance: Adapter soft state
3671 *
3672 * During the initialization, FW passes can potentially be in any one of
3673 * several possible states. If the FW in operational, waiting-for-handshake
3674 * states, driver must take steps to bring it to ready state. Otherwise, it
3675 * has to wait for the ready state.
3676 */
3677 int
3678 megasas_transition_to_ready(struct megasas_instance *instance, int ocr)
3679 {
3680 int i;
3681 u8 max_wait;
3682 u32 fw_state;
3683 u32 cur_state;
3684 u32 abs_state, curr_abs_state;
3685
3686 abs_state = instance->instancet->read_fw_status_reg(instance->reg_set);
3687 fw_state = abs_state & MFI_STATE_MASK;
3688
3689 if (fw_state != MFI_STATE_READY)
3690 dev_info(&instance->pdev->dev, "Waiting for FW to come to ready"
3691 " state\n");
3692
3693 while (fw_state != MFI_STATE_READY) {
3694
3695 switch (fw_state) {
3696
3697 case MFI_STATE_FAULT:
3698 dev_printk(KERN_DEBUG, &instance->pdev->dev, "FW in FAULT state!!\n");
3699 if (ocr) {
3700 max_wait = MEGASAS_RESET_WAIT_TIME;
3701 cur_state = MFI_STATE_FAULT;
3702 break;
3703 } else
3704 return -ENODEV;
3705
3706 case MFI_STATE_WAIT_HANDSHAKE:
3707 /*
3708 * Set the CLR bit in inbound doorbell
3709 */
3710 if ((instance->pdev->device ==
3711 PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
3712 (instance->pdev->device ==
3713 PCI_DEVICE_ID_LSI_SAS0071SKINNY) ||
3714 (instance->ctrl_context))
3715 writel(
3716 MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG,
3717 &instance->reg_set->doorbell);
3718 else
3719 writel(
3720 MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG,
3721 &instance->reg_set->inbound_doorbell);
3722
3723 max_wait = MEGASAS_RESET_WAIT_TIME;
3724 cur_state = MFI_STATE_WAIT_HANDSHAKE;
3725 break;
3726
3727 case MFI_STATE_BOOT_MESSAGE_PENDING:
3728 if ((instance->pdev->device ==
3729 PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
3730 (instance->pdev->device ==
3731 PCI_DEVICE_ID_LSI_SAS0071SKINNY) ||
3732 (instance->ctrl_context))
3733 writel(MFI_INIT_HOTPLUG,
3734 &instance->reg_set->doorbell);
3735 else
3736 writel(MFI_INIT_HOTPLUG,
3737 &instance->reg_set->inbound_doorbell);
3738
3739 max_wait = MEGASAS_RESET_WAIT_TIME;
3740 cur_state = MFI_STATE_BOOT_MESSAGE_PENDING;
3741 break;
3742
3743 case MFI_STATE_OPERATIONAL:
3744 /*
3745 * Bring it to READY state; assuming max wait 10 secs
3746 */
3747 instance->instancet->disable_intr(instance);
3748 if ((instance->pdev->device ==
3749 PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
3750 (instance->pdev->device ==
3751 PCI_DEVICE_ID_LSI_SAS0071SKINNY) ||
3752 (instance->ctrl_context)) {
3753 writel(MFI_RESET_FLAGS,
3754 &instance->reg_set->doorbell);
3755
3756 if (instance->ctrl_context) {
3757 for (i = 0; i < (10 * 1000); i += 20) {
3758 if (readl(
3759 &instance->
3760 reg_set->
3761 doorbell) & 1)
3762 msleep(20);
3763 else
3764 break;
3765 }
3766 }
3767 } else
3768 writel(MFI_RESET_FLAGS,
3769 &instance->reg_set->inbound_doorbell);
3770
3771 max_wait = MEGASAS_RESET_WAIT_TIME;
3772 cur_state = MFI_STATE_OPERATIONAL;
3773 break;
3774
3775 case MFI_STATE_UNDEFINED:
3776 /*
3777 * This state should not last for more than 2 seconds
3778 */
3779 max_wait = MEGASAS_RESET_WAIT_TIME;
3780 cur_state = MFI_STATE_UNDEFINED;
3781 break;
3782
3783 case MFI_STATE_BB_INIT:
3784 max_wait = MEGASAS_RESET_WAIT_TIME;
3785 cur_state = MFI_STATE_BB_INIT;
3786 break;
3787
3788 case MFI_STATE_FW_INIT:
3789 max_wait = MEGASAS_RESET_WAIT_TIME;
3790 cur_state = MFI_STATE_FW_INIT;
3791 break;
3792
3793 case MFI_STATE_FW_INIT_2:
3794 max_wait = MEGASAS_RESET_WAIT_TIME;
3795 cur_state = MFI_STATE_FW_INIT_2;
3796 break;
3797
3798 case MFI_STATE_DEVICE_SCAN:
3799 max_wait = MEGASAS_RESET_WAIT_TIME;
3800 cur_state = MFI_STATE_DEVICE_SCAN;
3801 break;
3802
3803 case MFI_STATE_FLUSH_CACHE:
3804 max_wait = MEGASAS_RESET_WAIT_TIME;
3805 cur_state = MFI_STATE_FLUSH_CACHE;
3806 break;
3807
3808 default:
3809 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Unknown state 0x%x\n",
3810 fw_state);
3811 return -ENODEV;
3812 }
3813
3814 /*
3815 * The cur_state should not last for more than max_wait secs
3816 */
3817 for (i = 0; i < (max_wait * 1000); i++) {
3818 curr_abs_state = instance->instancet->
3819 read_fw_status_reg(instance->reg_set);
3820
3821 if (abs_state == curr_abs_state) {
3822 msleep(1);
3823 } else
3824 break;
3825 }
3826
3827 /*
3828 * Return error if fw_state hasn't changed after max_wait
3829 */
3830 if (curr_abs_state == abs_state) {
3831 dev_printk(KERN_DEBUG, &instance->pdev->dev, "FW state [%d] hasn't changed "
3832 "in %d secs\n", fw_state, max_wait);
3833 return -ENODEV;
3834 }
3835
3836 abs_state = curr_abs_state;
3837 fw_state = curr_abs_state & MFI_STATE_MASK;
3838 }
3839 dev_info(&instance->pdev->dev, "FW now in Ready state\n");
3840
3841 return 0;
3842 }
3843
3844 /**
3845 * megasas_teardown_frame_pool - Destroy the cmd frame DMA pool
3846 * @instance: Adapter soft state
3847 */
3848 static void megasas_teardown_frame_pool(struct megasas_instance *instance)
3849 {
3850 int i;
3851 u16 max_cmd = instance->max_mfi_cmds;
3852 struct megasas_cmd *cmd;
3853
3854 if (!instance->frame_dma_pool)
3855 return;
3856
3857 /*
3858 * Return all frames to pool
3859 */
3860 for (i = 0; i < max_cmd; i++) {
3861
3862 cmd = instance->cmd_list[i];
3863
3864 if (cmd->frame)
3865 pci_pool_free(instance->frame_dma_pool, cmd->frame,
3866 cmd->frame_phys_addr);
3867
3868 if (cmd->sense)
3869 pci_pool_free(instance->sense_dma_pool, cmd->sense,
3870 cmd->sense_phys_addr);
3871 }
3872
3873 /*
3874 * Now destroy the pool itself
3875 */
3876 pci_pool_destroy(instance->frame_dma_pool);
3877 pci_pool_destroy(instance->sense_dma_pool);
3878
3879 instance->frame_dma_pool = NULL;
3880 instance->sense_dma_pool = NULL;
3881 }
3882
3883 /**
3884 * megasas_create_frame_pool - Creates DMA pool for cmd frames
3885 * @instance: Adapter soft state
3886 *
3887 * Each command packet has an embedded DMA memory buffer that is used for
3888 * filling MFI frame and the SG list that immediately follows the frame. This
3889 * function creates those DMA memory buffers for each command packet by using
3890 * PCI pool facility.
3891 */
3892 static int megasas_create_frame_pool(struct megasas_instance *instance)
3893 {
3894 int i;
3895 u16 max_cmd;
3896 u32 sge_sz;
3897 u32 frame_count;
3898 struct megasas_cmd *cmd;
3899
3900 max_cmd = instance->max_mfi_cmds;
3901
3902 /*
3903 * Size of our frame is 64 bytes for MFI frame, followed by max SG
3904 * elements and finally SCSI_SENSE_BUFFERSIZE bytes for sense buffer
3905 */
3906 sge_sz = (IS_DMA64) ? sizeof(struct megasas_sge64) :
3907 sizeof(struct megasas_sge32);
3908
3909 if (instance->flag_ieee)
3910 sge_sz = sizeof(struct megasas_sge_skinny);
3911
3912 /*
3913 * For MFI controllers.
3914 * max_num_sge = 60
3915 * max_sge_sz = 16 byte (sizeof megasas_sge_skinny)
3916 * Total 960 byte (15 MFI frame of 64 byte)
3917 *
3918 * Fusion adapter require only 3 extra frame.
3919 * max_num_sge = 16 (defined as MAX_IOCTL_SGE)
3920 * max_sge_sz = 12 byte (sizeof megasas_sge64)
3921 * Total 192 byte (3 MFI frame of 64 byte)
3922 */
3923 frame_count = instance->ctrl_context ? (3 + 1) : (15 + 1);
3924 instance->mfi_frame_size = MEGAMFI_FRAME_SIZE * frame_count;
3925 /*
3926 * Use DMA pool facility provided by PCI layer
3927 */
3928 instance->frame_dma_pool = pci_pool_create("megasas frame pool",
3929 instance->pdev, instance->mfi_frame_size,
3930 256, 0);
3931
3932 if (!instance->frame_dma_pool) {
3933 dev_printk(KERN_DEBUG, &instance->pdev->dev, "failed to setup frame pool\n");
3934 return -ENOMEM;
3935 }
3936
3937 instance->sense_dma_pool = pci_pool_create("megasas sense pool",
3938 instance->pdev, 128, 4, 0);
3939
3940 if (!instance->sense_dma_pool) {
3941 dev_printk(KERN_DEBUG, &instance->pdev->dev, "failed to setup sense pool\n");
3942
3943 pci_pool_destroy(instance->frame_dma_pool);
3944 instance->frame_dma_pool = NULL;
3945
3946 return -ENOMEM;
3947 }
3948
3949 /*
3950 * Allocate and attach a frame to each of the commands in cmd_list.
3951 * By making cmd->index as the context instead of the &cmd, we can
3952 * always use 32bit context regardless of the architecture
3953 */
3954 for (i = 0; i < max_cmd; i++) {
3955
3956 cmd = instance->cmd_list[i];
3957
3958 cmd->frame = pci_pool_alloc(instance->frame_dma_pool,
3959 GFP_KERNEL, &cmd->frame_phys_addr);
3960
3961 cmd->sense = pci_pool_alloc(instance->sense_dma_pool,
3962 GFP_KERNEL, &cmd->sense_phys_addr);
3963
3964 /*
3965 * megasas_teardown_frame_pool() takes care of freeing
3966 * whatever has been allocated
3967 */
3968 if (!cmd->frame || !cmd->sense) {
3969 dev_printk(KERN_DEBUG, &instance->pdev->dev, "pci_pool_alloc failed\n");
3970 megasas_teardown_frame_pool(instance);
3971 return -ENOMEM;
3972 }
3973
3974 memset(cmd->frame, 0, instance->mfi_frame_size);
3975 cmd->frame->io.context = cpu_to_le32(cmd->index);
3976 cmd->frame->io.pad_0 = 0;
3977 if (!instance->ctrl_context && reset_devices)
3978 cmd->frame->hdr.cmd = MFI_CMD_INVALID;
3979 }
3980
3981 return 0;
3982 }
3983
3984 /**
3985 * megasas_free_cmds - Free all the cmds in the free cmd pool
3986 * @instance: Adapter soft state
3987 */
3988 void megasas_free_cmds(struct megasas_instance *instance)
3989 {
3990 int i;
3991
3992 /* First free the MFI frame pool */
3993 megasas_teardown_frame_pool(instance);
3994
3995 /* Free all the commands in the cmd_list */
3996 for (i = 0; i < instance->max_mfi_cmds; i++)
3997
3998 kfree(instance->cmd_list[i]);
3999
4000 /* Free the cmd_list buffer itself */
4001 kfree(instance->cmd_list);
4002 instance->cmd_list = NULL;
4003
4004 INIT_LIST_HEAD(&instance->cmd_pool);
4005 }
4006
4007 /**
4008 * megasas_alloc_cmds - Allocates the command packets
4009 * @instance: Adapter soft state
4010 *
4011 * Each command that is issued to the FW, whether IO commands from the OS or
4012 * internal commands like IOCTLs, are wrapped in local data structure called
4013 * megasas_cmd. The frame embedded in this megasas_cmd is actually issued to
4014 * the FW.
4015 *
4016 * Each frame has a 32-bit field called context (tag). This context is used
4017 * to get back the megasas_cmd from the frame when a frame gets completed in
4018 * the ISR. Typically the address of the megasas_cmd itself would be used as
4019 * the context. But we wanted to keep the differences between 32 and 64 bit
4020 * systems to the mininum. We always use 32 bit integers for the context. In
4021 * this driver, the 32 bit values are the indices into an array cmd_list.
4022 * This array is used only to look up the megasas_cmd given the context. The
4023 * free commands themselves are maintained in a linked list called cmd_pool.
4024 */
4025 int megasas_alloc_cmds(struct megasas_instance *instance)
4026 {
4027 int i;
4028 int j;
4029 u16 max_cmd;
4030 struct megasas_cmd *cmd;
4031 struct fusion_context *fusion;
4032
4033 fusion = instance->ctrl_context;
4034 max_cmd = instance->max_mfi_cmds;
4035
4036 /*
4037 * instance->cmd_list is an array of struct megasas_cmd pointers.
4038 * Allocate the dynamic array first and then allocate individual
4039 * commands.
4040 */
4041 instance->cmd_list = kcalloc(max_cmd, sizeof(struct megasas_cmd*), GFP_KERNEL);
4042
4043 if (!instance->cmd_list) {
4044 dev_printk(KERN_DEBUG, &instance->pdev->dev, "out of memory\n");
4045 return -ENOMEM;
4046 }
4047
4048 memset(instance->cmd_list, 0, sizeof(struct megasas_cmd *) *max_cmd);
4049
4050 for (i = 0; i < max_cmd; i++) {
4051 instance->cmd_list[i] = kmalloc(sizeof(struct megasas_cmd),
4052 GFP_KERNEL);
4053
4054 if (!instance->cmd_list[i]) {
4055
4056 for (j = 0; j < i; j++)
4057 kfree(instance->cmd_list[j]);
4058
4059 kfree(instance->cmd_list);
4060 instance->cmd_list = NULL;
4061
4062 return -ENOMEM;
4063 }
4064 }
4065
4066 for (i = 0; i < max_cmd; i++) {
4067 cmd = instance->cmd_list[i];
4068 memset(cmd, 0, sizeof(struct megasas_cmd));
4069 cmd->index = i;
4070 cmd->scmd = NULL;
4071 cmd->instance = instance;
4072
4073 list_add_tail(&cmd->list, &instance->cmd_pool);
4074 }
4075
4076 /*
4077 * Create a frame pool and assign one frame to each cmd
4078 */
4079 if (megasas_create_frame_pool(instance)) {
4080 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Error creating frame DMA pool\n");
4081 megasas_free_cmds(instance);
4082 }
4083
4084 return 0;
4085 }
4086
4087 /*
4088 * dcmd_timeout_ocr_possible - Check if OCR is possible based on Driver/FW state.
4089 * @instance: Adapter soft state
4090 *
4091 * Return 0 for only Fusion adapter, if driver load/unload is not in progress
4092 * or FW is not under OCR.
4093 */
4094 inline int
4095 dcmd_timeout_ocr_possible(struct megasas_instance *instance) {
4096
4097 if (!instance->ctrl_context)
4098 return KILL_ADAPTER;
4099 else if (instance->unload ||
4100 test_bit(MEGASAS_FUSION_IN_RESET, &instance->reset_flags))
4101 return IGNORE_TIMEOUT;
4102 else
4103 return INITIATE_OCR;
4104 }
4105
4106 static void
4107 megasas_get_pd_info(struct megasas_instance *instance, struct scsi_device *sdev)
4108 {
4109 int ret;
4110 struct megasas_cmd *cmd;
4111 struct megasas_dcmd_frame *dcmd;
4112
4113 struct MR_PRIV_DEVICE *mr_device_priv_data;
4114 u16 device_id = 0;
4115
4116 device_id = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + sdev->id;
4117 cmd = megasas_get_cmd(instance);
4118
4119 if (!cmd) {
4120 dev_err(&instance->pdev->dev, "Failed to get cmd %s\n", __func__);
4121 return;
4122 }
4123
4124 dcmd = &cmd->frame->dcmd;
4125
4126 memset(instance->pd_info, 0, sizeof(*instance->pd_info));
4127 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
4128
4129 dcmd->mbox.s[0] = cpu_to_le16(device_id);
4130 dcmd->cmd = MFI_CMD_DCMD;
4131 dcmd->cmd_status = 0xFF;
4132 dcmd->sge_count = 1;
4133 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_READ);
4134 dcmd->timeout = 0;
4135 dcmd->pad_0 = 0;
4136 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_PD_INFO));
4137 dcmd->opcode = cpu_to_le32(MR_DCMD_PD_GET_INFO);
4138 dcmd->sgl.sge32[0].phys_addr = cpu_to_le32(instance->pd_info_h);
4139 dcmd->sgl.sge32[0].length = cpu_to_le32(sizeof(struct MR_PD_INFO));
4140
4141 if (instance->ctrl_context && !instance->mask_interrupts)
4142 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS);
4143 else
4144 ret = megasas_issue_polled(instance, cmd);
4145
4146 switch (ret) {
4147 case DCMD_SUCCESS:
4148 mr_device_priv_data = sdev->hostdata;
4149 le16_to_cpus((u16 *)&instance->pd_info->state.ddf.pdType);
4150 mr_device_priv_data->interface_type =
4151 instance->pd_info->state.ddf.pdType.intf;
4152 break;
4153
4154 case DCMD_TIMEOUT:
4155
4156 switch (dcmd_timeout_ocr_possible(instance)) {
4157 case INITIATE_OCR:
4158 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
4159 megasas_reset_fusion(instance->host,
4160 MFI_IO_TIMEOUT_OCR);
4161 break;
4162 case KILL_ADAPTER:
4163 megaraid_sas_kill_hba(instance);
4164 break;
4165 case IGNORE_TIMEOUT:
4166 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n",
4167 __func__, __LINE__);
4168 break;
4169 }
4170
4171 break;
4172 }
4173
4174 if (ret != DCMD_TIMEOUT)
4175 megasas_return_cmd(instance, cmd);
4176
4177 return;
4178 }
4179 /*
4180 * megasas_get_pd_list_info - Returns FW's pd_list structure
4181 * @instance: Adapter soft state
4182 * @pd_list: pd_list structure
4183 *
4184 * Issues an internal command (DCMD) to get the FW's controller PD
4185 * list structure. This information is mainly used to find out SYSTEM
4186 * supported by the FW.
4187 */
4188 static int
4189 megasas_get_pd_list(struct megasas_instance *instance)
4190 {
4191 int ret = 0, pd_index = 0;
4192 struct megasas_cmd *cmd;
4193 struct megasas_dcmd_frame *dcmd;
4194 struct MR_PD_LIST *ci;
4195 struct MR_PD_ADDRESS *pd_addr;
4196 dma_addr_t ci_h = 0;
4197
4198 if (instance->pd_list_not_supported) {
4199 dev_info(&instance->pdev->dev, "MR_DCMD_PD_LIST_QUERY "
4200 "not supported by firmware\n");
4201 return ret;
4202 }
4203
4204 cmd = megasas_get_cmd(instance);
4205
4206 if (!cmd) {
4207 dev_printk(KERN_DEBUG, &instance->pdev->dev, "(get_pd_list): Failed to get cmd\n");
4208 return -ENOMEM;
4209 }
4210
4211 dcmd = &cmd->frame->dcmd;
4212
4213 ci = pci_alloc_consistent(instance->pdev,
4214 MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST), &ci_h);
4215
4216 if (!ci) {
4217 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to alloc mem for pd_list\n");
4218 megasas_return_cmd(instance, cmd);
4219 return -ENOMEM;
4220 }
4221
4222 memset(ci, 0, sizeof(*ci));
4223 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
4224
4225 dcmd->mbox.b[0] = MR_PD_QUERY_TYPE_EXPOSED_TO_HOST;
4226 dcmd->mbox.b[1] = 0;
4227 dcmd->cmd = MFI_CMD_DCMD;
4228 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
4229 dcmd->sge_count = 1;
4230 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_READ);
4231 dcmd->timeout = 0;
4232 dcmd->pad_0 = 0;
4233 dcmd->data_xfer_len = cpu_to_le32(MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST));
4234 dcmd->opcode = cpu_to_le32(MR_DCMD_PD_LIST_QUERY);
4235 dcmd->sgl.sge32[0].phys_addr = cpu_to_le32(ci_h);
4236 dcmd->sgl.sge32[0].length = cpu_to_le32(MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST));
4237
4238 if (instance->ctrl_context && !instance->mask_interrupts)
4239 ret = megasas_issue_blocked_cmd(instance, cmd,
4240 MFI_IO_TIMEOUT_SECS);
4241 else
4242 ret = megasas_issue_polled(instance, cmd);
4243
4244 switch (ret) {
4245 case DCMD_FAILED:
4246 dev_info(&instance->pdev->dev, "MR_DCMD_PD_LIST_QUERY "
4247 "failed/not supported by firmware\n");
4248
4249 if (instance->ctrl_context)
4250 megaraid_sas_kill_hba(instance);
4251 else
4252 instance->pd_list_not_supported = 1;
4253 break;
4254 case DCMD_TIMEOUT:
4255
4256 switch (dcmd_timeout_ocr_possible(instance)) {
4257 case INITIATE_OCR:
4258 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
4259 /*
4260 * DCMD failed from AEN path.
4261 * AEN path already hold reset_mutex to avoid PCI access
4262 * while OCR is in progress.
4263 */
4264 mutex_unlock(&instance->reset_mutex);
4265 megasas_reset_fusion(instance->host,
4266 MFI_IO_TIMEOUT_OCR);
4267 mutex_lock(&instance->reset_mutex);
4268 break;
4269 case KILL_ADAPTER:
4270 megaraid_sas_kill_hba(instance);
4271 break;
4272 case IGNORE_TIMEOUT:
4273 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d \n",
4274 __func__, __LINE__);
4275 break;
4276 }
4277
4278 break;
4279
4280 case DCMD_SUCCESS:
4281 pd_addr = ci->addr;
4282
4283 if ((le32_to_cpu(ci->count) >
4284 (MEGASAS_MAX_PD_CHANNELS * MEGASAS_MAX_DEV_PER_CHANNEL)))
4285 break;
4286
4287 memset(instance->local_pd_list, 0,
4288 MEGASAS_MAX_PD * sizeof(struct megasas_pd_list));
4289
4290 for (pd_index = 0; pd_index < le32_to_cpu(ci->count); pd_index++) {
4291 instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].tid =
4292 le16_to_cpu(pd_addr->deviceId);
4293 instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].driveType =
4294 pd_addr->scsiDevType;
4295 instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].driveState =
4296 MR_PD_STATE_SYSTEM;
4297 pd_addr++;
4298 }
4299
4300 memcpy(instance->pd_list, instance->local_pd_list,
4301 sizeof(instance->pd_list));
4302 break;
4303
4304 }
4305
4306 pci_free_consistent(instance->pdev,
4307 MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST),
4308 ci, ci_h);
4309
4310 if (ret != DCMD_TIMEOUT)
4311 megasas_return_cmd(instance, cmd);
4312
4313 return ret;
4314 }
4315
4316 /*
4317 * megasas_get_ld_list_info - Returns FW's ld_list structure
4318 * @instance: Adapter soft state
4319 * @ld_list: ld_list structure
4320 *
4321 * Issues an internal command (DCMD) to get the FW's controller PD
4322 * list structure. This information is mainly used to find out SYSTEM
4323 * supported by the FW.
4324 */
4325 static int
4326 megasas_get_ld_list(struct megasas_instance *instance)
4327 {
4328 int ret = 0, ld_index = 0, ids = 0;
4329 struct megasas_cmd *cmd;
4330 struct megasas_dcmd_frame *dcmd;
4331 struct MR_LD_LIST *ci;
4332 dma_addr_t ci_h = 0;
4333 u32 ld_count;
4334
4335 cmd = megasas_get_cmd(instance);
4336
4337 if (!cmd) {
4338 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_list: Failed to get cmd\n");
4339 return -ENOMEM;
4340 }
4341
4342 dcmd = &cmd->frame->dcmd;
4343
4344 ci = pci_alloc_consistent(instance->pdev,
4345 sizeof(struct MR_LD_LIST),
4346 &ci_h);
4347
4348 if (!ci) {
4349 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to alloc mem in get_ld_list\n");
4350 megasas_return_cmd(instance, cmd);
4351 return -ENOMEM;
4352 }
4353
4354 memset(ci, 0, sizeof(*ci));
4355 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
4356
4357 if (instance->supportmax256vd)
4358 dcmd->mbox.b[0] = 1;
4359 dcmd->cmd = MFI_CMD_DCMD;
4360 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
4361 dcmd->sge_count = 1;
4362 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_READ);
4363 dcmd->timeout = 0;
4364 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_LD_LIST));
4365 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_GET_LIST);
4366 dcmd->sgl.sge32[0].phys_addr = cpu_to_le32(ci_h);
4367 dcmd->sgl.sge32[0].length = cpu_to_le32(sizeof(struct MR_LD_LIST));
4368 dcmd->pad_0 = 0;
4369
4370 if (instance->ctrl_context && !instance->mask_interrupts)
4371 ret = megasas_issue_blocked_cmd(instance, cmd,
4372 MFI_IO_TIMEOUT_SECS);
4373 else
4374 ret = megasas_issue_polled(instance, cmd);
4375
4376 ld_count = le32_to_cpu(ci->ldCount);
4377
4378 switch (ret) {
4379 case DCMD_FAILED:
4380 megaraid_sas_kill_hba(instance);
4381 break;
4382 case DCMD_TIMEOUT:
4383
4384 switch (dcmd_timeout_ocr_possible(instance)) {
4385 case INITIATE_OCR:
4386 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
4387 /*
4388 * DCMD failed from AEN path.
4389 * AEN path already hold reset_mutex to avoid PCI access
4390 * while OCR is in progress.
4391 */
4392 mutex_unlock(&instance->reset_mutex);
4393 megasas_reset_fusion(instance->host,
4394 MFI_IO_TIMEOUT_OCR);
4395 mutex_lock(&instance->reset_mutex);
4396 break;
4397 case KILL_ADAPTER:
4398 megaraid_sas_kill_hba(instance);
4399 break;
4400 case IGNORE_TIMEOUT:
4401 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n",
4402 __func__, __LINE__);
4403 break;
4404 }
4405
4406 break;
4407
4408 case DCMD_SUCCESS:
4409 if (ld_count > instance->fw_supported_vd_count)
4410 break;
4411
4412 memset(instance->ld_ids, 0xff, MAX_LOGICAL_DRIVES_EXT);
4413
4414 for (ld_index = 0; ld_index < ld_count; ld_index++) {
4415 if (ci->ldList[ld_index].state != 0) {
4416 ids = ci->ldList[ld_index].ref.targetId;
4417 instance->ld_ids[ids] = ci->ldList[ld_index].ref.targetId;
4418 }
4419 }
4420
4421 break;
4422 }
4423
4424 pci_free_consistent(instance->pdev, sizeof(struct MR_LD_LIST), ci, ci_h);
4425
4426 if (ret != DCMD_TIMEOUT)
4427 megasas_return_cmd(instance, cmd);
4428
4429 return ret;
4430 }
4431
4432 /**
4433 * megasas_ld_list_query - Returns FW's ld_list structure
4434 * @instance: Adapter soft state
4435 * @ld_list: ld_list structure
4436 *
4437 * Issues an internal command (DCMD) to get the FW's controller PD
4438 * list structure. This information is mainly used to find out SYSTEM
4439 * supported by the FW.
4440 */
4441 static int
4442 megasas_ld_list_query(struct megasas_instance *instance, u8 query_type)
4443 {
4444 int ret = 0, ld_index = 0, ids = 0;
4445 struct megasas_cmd *cmd;
4446 struct megasas_dcmd_frame *dcmd;
4447 struct MR_LD_TARGETID_LIST *ci;
4448 dma_addr_t ci_h = 0;
4449 u32 tgtid_count;
4450
4451 cmd = megasas_get_cmd(instance);
4452
4453 if (!cmd) {
4454 dev_warn(&instance->pdev->dev,
4455 "megasas_ld_list_query: Failed to get cmd\n");
4456 return -ENOMEM;
4457 }
4458
4459 dcmd = &cmd->frame->dcmd;
4460
4461 ci = pci_alloc_consistent(instance->pdev,
4462 sizeof(struct MR_LD_TARGETID_LIST), &ci_h);
4463
4464 if (!ci) {
4465 dev_warn(&instance->pdev->dev,
4466 "Failed to alloc mem for ld_list_query\n");
4467 megasas_return_cmd(instance, cmd);
4468 return -ENOMEM;
4469 }
4470
4471 memset(ci, 0, sizeof(*ci));
4472 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
4473
4474 dcmd->mbox.b[0] = query_type;
4475 if (instance->supportmax256vd)
4476 dcmd->mbox.b[2] = 1;
4477
4478 dcmd->cmd = MFI_CMD_DCMD;
4479 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
4480 dcmd->sge_count = 1;
4481 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_READ);
4482 dcmd->timeout = 0;
4483 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_LD_TARGETID_LIST));
4484 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_LIST_QUERY);
4485 dcmd->sgl.sge32[0].phys_addr = cpu_to_le32(ci_h);
4486 dcmd->sgl.sge32[0].length = cpu_to_le32(sizeof(struct MR_LD_TARGETID_LIST));
4487 dcmd->pad_0 = 0;
4488
4489 if (instance->ctrl_context && !instance->mask_interrupts)
4490 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS);
4491 else
4492 ret = megasas_issue_polled(instance, cmd);
4493
4494 switch (ret) {
4495 case DCMD_FAILED:
4496 dev_info(&instance->pdev->dev,
4497 "DCMD not supported by firmware - %s %d\n",
4498 __func__, __LINE__);
4499 ret = megasas_get_ld_list(instance);
4500 break;
4501 case DCMD_TIMEOUT:
4502 switch (dcmd_timeout_ocr_possible(instance)) {
4503 case INITIATE_OCR:
4504 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
4505 /*
4506 * DCMD failed from AEN path.
4507 * AEN path already hold reset_mutex to avoid PCI access
4508 * while OCR is in progress.
4509 */
4510 mutex_unlock(&instance->reset_mutex);
4511 megasas_reset_fusion(instance->host,
4512 MFI_IO_TIMEOUT_OCR);
4513 mutex_lock(&instance->reset_mutex);
4514 break;
4515 case KILL_ADAPTER:
4516 megaraid_sas_kill_hba(instance);
4517 break;
4518 case IGNORE_TIMEOUT:
4519 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n",
4520 __func__, __LINE__);
4521 break;
4522 }
4523
4524 break;
4525 case DCMD_SUCCESS:
4526 tgtid_count = le32_to_cpu(ci->count);
4527
4528 if ((tgtid_count > (instance->fw_supported_vd_count)))
4529 break;
4530
4531 memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS);
4532 for (ld_index = 0; ld_index < tgtid_count; ld_index++) {
4533 ids = ci->targetId[ld_index];
4534 instance->ld_ids[ids] = ci->targetId[ld_index];
4535 }
4536
4537 break;
4538 }
4539
4540 pci_free_consistent(instance->pdev, sizeof(struct MR_LD_TARGETID_LIST),
4541 ci, ci_h);
4542
4543 if (ret != DCMD_TIMEOUT)
4544 megasas_return_cmd(instance, cmd);
4545
4546 return ret;
4547 }
4548
4549 /*
4550 * megasas_update_ext_vd_details : Update details w.r.t Extended VD
4551 * instance : Controller's instance
4552 */
4553 static void megasas_update_ext_vd_details(struct megasas_instance *instance)
4554 {
4555 struct fusion_context *fusion;
4556 u32 ventura_map_sz = 0;
4557
4558 fusion = instance->ctrl_context;
4559 /* For MFI based controllers return dummy success */
4560 if (!fusion)
4561 return;
4562
4563 instance->supportmax256vd =
4564 instance->ctrl_info->adapterOperations3.supportMaxExtLDs;
4565 /* Below is additional check to address future FW enhancement */
4566 if (instance->ctrl_info->max_lds > 64)
4567 instance->supportmax256vd = 1;
4568
4569 instance->drv_supported_vd_count = MEGASAS_MAX_LD_CHANNELS
4570 * MEGASAS_MAX_DEV_PER_CHANNEL;
4571 instance->drv_supported_pd_count = MEGASAS_MAX_PD_CHANNELS
4572 * MEGASAS_MAX_DEV_PER_CHANNEL;
4573 if (instance->supportmax256vd) {
4574 instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES_EXT;
4575 instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES;
4576 } else {
4577 instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES;
4578 instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES;
4579 }
4580
4581 dev_info(&instance->pdev->dev,
4582 "firmware type\t: %s\n",
4583 instance->supportmax256vd ? "Extended VD(240 VD)firmware" :
4584 "Legacy(64 VD) firmware");
4585
4586 if (instance->max_raid_mapsize) {
4587 ventura_map_sz = instance->max_raid_mapsize *
4588 MR_MIN_MAP_SIZE; /* 64k */
4589 fusion->current_map_sz = ventura_map_sz;
4590 fusion->max_map_sz = ventura_map_sz;
4591 } else {
4592 fusion->old_map_sz = sizeof(struct MR_FW_RAID_MAP) +
4593 (sizeof(struct MR_LD_SPAN_MAP) *
4594 (instance->fw_supported_vd_count - 1));
4595 fusion->new_map_sz = sizeof(struct MR_FW_RAID_MAP_EXT);
4596
4597 fusion->max_map_sz =
4598 max(fusion->old_map_sz, fusion->new_map_sz);
4599
4600 if (instance->supportmax256vd)
4601 fusion->current_map_sz = fusion->new_map_sz;
4602 else
4603 fusion->current_map_sz = fusion->old_map_sz;
4604 }
4605 /* irrespective of FW raid maps, driver raid map is constant */
4606 fusion->drv_map_sz = sizeof(struct MR_DRV_RAID_MAP_ALL);
4607 }
4608
4609 /**
4610 * megasas_get_controller_info - Returns FW's controller structure
4611 * @instance: Adapter soft state
4612 *
4613 * Issues an internal command (DCMD) to get the FW's controller structure.
4614 * This information is mainly used to find out the maximum IO transfer per
4615 * command supported by the FW.
4616 */
4617 int
4618 megasas_get_ctrl_info(struct megasas_instance *instance)
4619 {
4620 int ret = 0;
4621 struct megasas_cmd *cmd;
4622 struct megasas_dcmd_frame *dcmd;
4623 struct megasas_ctrl_info *ci;
4624 struct megasas_ctrl_info *ctrl_info;
4625 dma_addr_t ci_h = 0;
4626
4627 ctrl_info = instance->ctrl_info;
4628
4629 cmd = megasas_get_cmd(instance);
4630
4631 if (!cmd) {
4632 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to get a free cmd\n");
4633 return -ENOMEM;
4634 }
4635
4636 dcmd = &cmd->frame->dcmd;
4637
4638 ci = pci_alloc_consistent(instance->pdev,
4639 sizeof(struct megasas_ctrl_info), &ci_h);
4640
4641 if (!ci) {
4642 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to alloc mem for ctrl info\n");
4643 megasas_return_cmd(instance, cmd);
4644 return -ENOMEM;
4645 }
4646
4647 memset(ci, 0, sizeof(*ci));
4648 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
4649
4650 dcmd->cmd = MFI_CMD_DCMD;
4651 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
4652 dcmd->sge_count = 1;
4653 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_READ);
4654 dcmd->timeout = 0;
4655 dcmd->pad_0 = 0;
4656 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct megasas_ctrl_info));
4657 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_GET_INFO);
4658 dcmd->sgl.sge32[0].phys_addr = cpu_to_le32(ci_h);
4659 dcmd->sgl.sge32[0].length = cpu_to_le32(sizeof(struct megasas_ctrl_info));
4660 dcmd->mbox.b[0] = 1;
4661
4662 if (instance->ctrl_context && !instance->mask_interrupts)
4663 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS);
4664 else
4665 ret = megasas_issue_polled(instance, cmd);
4666
4667 switch (ret) {
4668 case DCMD_SUCCESS:
4669 memcpy(ctrl_info, ci, sizeof(struct megasas_ctrl_info));
4670 /* Save required controller information in
4671 * CPU endianness format.
4672 */
4673 le32_to_cpus((u32 *)&ctrl_info->properties.OnOffProperties);
4674 le32_to_cpus((u32 *)&ctrl_info->adapterOperations2);
4675 le32_to_cpus((u32 *)&ctrl_info->adapterOperations3);
4676 le16_to_cpus((u16 *)&ctrl_info->adapter_operations4);
4677
4678 /* Update the latest Ext VD info.
4679 * From Init path, store current firmware details.
4680 * From OCR path, detect any firmware properties changes.
4681 * in case of Firmware upgrade without system reboot.
4682 */
4683 megasas_update_ext_vd_details(instance);
4684 instance->use_seqnum_jbod_fp =
4685 ctrl_info->adapterOperations3.useSeqNumJbodFP;
4686 instance->support_morethan256jbod =
4687 ctrl_info->adapter_operations4.support_pd_map_target_id;
4688
4689 /*Check whether controller is iMR or MR */
4690 instance->is_imr = (ctrl_info->memory_size ? 0 : 1);
4691 dev_info(&instance->pdev->dev,
4692 "controller type\t: %s(%dMB)\n",
4693 instance->is_imr ? "iMR" : "MR",
4694 le16_to_cpu(ctrl_info->memory_size));
4695
4696 instance->disableOnlineCtrlReset =
4697 ctrl_info->properties.OnOffProperties.disableOnlineCtrlReset;
4698 instance->secure_jbod_support =
4699 ctrl_info->adapterOperations3.supportSecurityonJBOD;
4700 dev_info(&instance->pdev->dev, "Online Controller Reset(OCR)\t: %s\n",
4701 instance->disableOnlineCtrlReset ? "Disabled" : "Enabled");
4702 dev_info(&instance->pdev->dev, "Secure JBOD support\t: %s\n",
4703 instance->secure_jbod_support ? "Yes" : "No");
4704 break;
4705
4706 case DCMD_TIMEOUT:
4707 switch (dcmd_timeout_ocr_possible(instance)) {
4708 case INITIATE_OCR:
4709 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
4710 megasas_reset_fusion(instance->host,
4711 MFI_IO_TIMEOUT_OCR);
4712 break;
4713 case KILL_ADAPTER:
4714 megaraid_sas_kill_hba(instance);
4715 break;
4716 case IGNORE_TIMEOUT:
4717 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n",
4718 __func__, __LINE__);
4719 break;
4720 }
4721 case DCMD_FAILED:
4722 megaraid_sas_kill_hba(instance);
4723 break;
4724
4725 }
4726
4727 pci_free_consistent(instance->pdev, sizeof(struct megasas_ctrl_info),
4728 ci, ci_h);
4729
4730 megasas_return_cmd(instance, cmd);
4731
4732
4733 return ret;
4734 }
4735
4736 /*
4737 * megasas_set_crash_dump_params - Sends address of crash dump DMA buffer
4738 * to firmware
4739 *
4740 * @instance: Adapter soft state
4741 * @crash_buf_state - tell FW to turn ON/OFF crash dump feature
4742 MR_CRASH_BUF_TURN_OFF = 0
4743 MR_CRASH_BUF_TURN_ON = 1
4744 * @return 0 on success non-zero on failure.
4745 * Issues an internal command (DCMD) to set parameters for crash dump feature.
4746 * Driver will send address of crash dump DMA buffer and set mbox to tell FW
4747 * that driver supports crash dump feature. This DCMD will be sent only if
4748 * crash dump feature is supported by the FW.
4749 *
4750 */
4751 int megasas_set_crash_dump_params(struct megasas_instance *instance,
4752 u8 crash_buf_state)
4753 {
4754 int ret = 0;
4755 struct megasas_cmd *cmd;
4756 struct megasas_dcmd_frame *dcmd;
4757
4758 cmd = megasas_get_cmd(instance);
4759
4760 if (!cmd) {
4761 dev_err(&instance->pdev->dev, "Failed to get a free cmd\n");
4762 return -ENOMEM;
4763 }
4764
4765
4766 dcmd = &cmd->frame->dcmd;
4767
4768 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
4769 dcmd->mbox.b[0] = crash_buf_state;
4770 dcmd->cmd = MFI_CMD_DCMD;
4771 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
4772 dcmd->sge_count = 1;
4773 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_NONE);
4774 dcmd->timeout = 0;
4775 dcmd->pad_0 = 0;
4776 dcmd->data_xfer_len = cpu_to_le32(CRASH_DMA_BUF_SIZE);
4777 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_SET_CRASH_DUMP_PARAMS);
4778 dcmd->sgl.sge32[0].phys_addr = cpu_to_le32(instance->crash_dump_h);
4779 dcmd->sgl.sge32[0].length = cpu_to_le32(CRASH_DMA_BUF_SIZE);
4780
4781 if (instance->ctrl_context && !instance->mask_interrupts)
4782 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS);
4783 else
4784 ret = megasas_issue_polled(instance, cmd);
4785
4786 if (ret == DCMD_TIMEOUT) {
4787 switch (dcmd_timeout_ocr_possible(instance)) {
4788 case INITIATE_OCR:
4789 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
4790 megasas_reset_fusion(instance->host,
4791 MFI_IO_TIMEOUT_OCR);
4792 break;
4793 case KILL_ADAPTER:
4794 megaraid_sas_kill_hba(instance);
4795 break;
4796 case IGNORE_TIMEOUT:
4797 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n",
4798 __func__, __LINE__);
4799 break;
4800 }
4801 } else
4802 megasas_return_cmd(instance, cmd);
4803
4804 return ret;
4805 }
4806
4807 /**
4808 * megasas_issue_init_mfi - Initializes the FW
4809 * @instance: Adapter soft state
4810 *
4811 * Issues the INIT MFI cmd
4812 */
4813 static int
4814 megasas_issue_init_mfi(struct megasas_instance *instance)
4815 {
4816 __le32 context;
4817 struct megasas_cmd *cmd;
4818 struct megasas_init_frame *init_frame;
4819 struct megasas_init_queue_info *initq_info;
4820 dma_addr_t init_frame_h;
4821 dma_addr_t initq_info_h;
4822
4823 /*
4824 * Prepare a init frame. Note the init frame points to queue info
4825 * structure. Each frame has SGL allocated after first 64 bytes. For
4826 * this frame - since we don't need any SGL - we use SGL's space as
4827 * queue info structure
4828 *
4829 * We will not get a NULL command below. We just created the pool.
4830 */
4831 cmd = megasas_get_cmd(instance);
4832
4833 init_frame = (struct megasas_init_frame *)cmd->frame;
4834 initq_info = (struct megasas_init_queue_info *)
4835 ((unsigned long)init_frame + 64);
4836
4837 init_frame_h = cmd->frame_phys_addr;
4838 initq_info_h = init_frame_h + 64;
4839
4840 context = init_frame->context;
4841 memset(init_frame, 0, MEGAMFI_FRAME_SIZE);
4842 memset(initq_info, 0, sizeof(struct megasas_init_queue_info));
4843 init_frame->context = context;
4844
4845 initq_info->reply_queue_entries = cpu_to_le32(instance->max_fw_cmds + 1);
4846 initq_info->reply_queue_start_phys_addr_lo = cpu_to_le32(instance->reply_queue_h);
4847
4848 initq_info->producer_index_phys_addr_lo = cpu_to_le32(instance->producer_h);
4849 initq_info->consumer_index_phys_addr_lo = cpu_to_le32(instance->consumer_h);
4850
4851 init_frame->cmd = MFI_CMD_INIT;
4852 init_frame->cmd_status = MFI_STAT_INVALID_STATUS;
4853 init_frame->queue_info_new_phys_addr_lo =
4854 cpu_to_le32(lower_32_bits(initq_info_h));
4855 init_frame->queue_info_new_phys_addr_hi =
4856 cpu_to_le32(upper_32_bits(initq_info_h));
4857
4858 init_frame->data_xfer_len = cpu_to_le32(sizeof(struct megasas_init_queue_info));
4859
4860 /*
4861 * disable the intr before firing the init frame to FW
4862 */
4863 instance->instancet->disable_intr(instance);
4864
4865 /*
4866 * Issue the init frame in polled mode
4867 */
4868
4869 if (megasas_issue_polled(instance, cmd)) {
4870 dev_err(&instance->pdev->dev, "Failed to init firmware\n");
4871 megasas_return_cmd(instance, cmd);
4872 goto fail_fw_init;
4873 }
4874
4875 megasas_return_cmd(instance, cmd);
4876
4877 return 0;
4878
4879 fail_fw_init:
4880 return -EINVAL;
4881 }
4882
4883 static u32
4884 megasas_init_adapter_mfi(struct megasas_instance *instance)
4885 {
4886 struct megasas_register_set __iomem *reg_set;
4887 u32 context_sz;
4888 u32 reply_q_sz;
4889
4890 reg_set = instance->reg_set;
4891
4892 /*
4893 * Get various operational parameters from status register
4894 */
4895 instance->max_fw_cmds = instance->instancet->read_fw_status_reg(reg_set) & 0x00FFFF;
4896 /*
4897 * Reduce the max supported cmds by 1. This is to ensure that the
4898 * reply_q_sz (1 more than the max cmd that driver may send)
4899 * does not exceed max cmds that the FW can support
4900 */
4901 instance->max_fw_cmds = instance->max_fw_cmds-1;
4902 instance->max_mfi_cmds = instance->max_fw_cmds;
4903 instance->max_num_sge = (instance->instancet->read_fw_status_reg(reg_set) & 0xFF0000) >>
4904 0x10;
4905 /*
4906 * For MFI skinny adapters, MEGASAS_SKINNY_INT_CMDS commands
4907 * are reserved for IOCTL + driver's internal DCMDs.
4908 */
4909 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
4910 (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY)) {
4911 instance->max_scsi_cmds = (instance->max_fw_cmds -
4912 MEGASAS_SKINNY_INT_CMDS);
4913 sema_init(&instance->ioctl_sem, MEGASAS_SKINNY_INT_CMDS);
4914 } else {
4915 instance->max_scsi_cmds = (instance->max_fw_cmds -
4916 MEGASAS_INT_CMDS);
4917 sema_init(&instance->ioctl_sem, (MEGASAS_MFI_IOCTL_CMDS));
4918 }
4919
4920 instance->cur_can_queue = instance->max_scsi_cmds;
4921 /*
4922 * Create a pool of commands
4923 */
4924 if (megasas_alloc_cmds(instance))
4925 goto fail_alloc_cmds;
4926
4927 /*
4928 * Allocate memory for reply queue. Length of reply queue should
4929 * be _one_ more than the maximum commands handled by the firmware.
4930 *
4931 * Note: When FW completes commands, it places corresponding contex
4932 * values in this circular reply queue. This circular queue is a fairly
4933 * typical producer-consumer queue. FW is the producer (of completed
4934 * commands) and the driver is the consumer.
4935 */
4936 context_sz = sizeof(u32);
4937 reply_q_sz = context_sz * (instance->max_fw_cmds + 1);
4938
4939 instance->reply_queue = pci_alloc_consistent(instance->pdev,
4940 reply_q_sz,
4941 &instance->reply_queue_h);
4942
4943 if (!instance->reply_queue) {
4944 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Out of DMA mem for reply queue\n");
4945 goto fail_reply_queue;
4946 }
4947
4948 if (megasas_issue_init_mfi(instance))
4949 goto fail_fw_init;
4950
4951 if (megasas_get_ctrl_info(instance)) {
4952 dev_err(&instance->pdev->dev, "(%d): Could get controller info "
4953 "Fail from %s %d\n", instance->unique_id,
4954 __func__, __LINE__);
4955 goto fail_fw_init;
4956 }
4957
4958 instance->fw_support_ieee = 0;
4959 instance->fw_support_ieee =
4960 (instance->instancet->read_fw_status_reg(reg_set) &
4961 0x04000000);
4962
4963 dev_notice(&instance->pdev->dev, "megasas_init_mfi: fw_support_ieee=%d",
4964 instance->fw_support_ieee);
4965
4966 if (instance->fw_support_ieee)
4967 instance->flag_ieee = 1;
4968
4969 return 0;
4970
4971 fail_fw_init:
4972
4973 pci_free_consistent(instance->pdev, reply_q_sz,
4974 instance->reply_queue, instance->reply_queue_h);
4975 fail_reply_queue:
4976 megasas_free_cmds(instance);
4977
4978 fail_alloc_cmds:
4979 return 1;
4980 }
4981
4982 /*
4983 * megasas_setup_irqs_ioapic - register legacy interrupts.
4984 * @instance: Adapter soft state
4985 *
4986 * Do not enable interrupt, only setup ISRs.
4987 *
4988 * Return 0 on success.
4989 */
4990 static int
4991 megasas_setup_irqs_ioapic(struct megasas_instance *instance)
4992 {
4993 struct pci_dev *pdev;
4994
4995 pdev = instance->pdev;
4996 instance->irq_context[0].instance = instance;
4997 instance->irq_context[0].MSIxIndex = 0;
4998 if (request_irq(pci_irq_vector(pdev, 0),
4999 instance->instancet->service_isr, IRQF_SHARED,
5000 "megasas", &instance->irq_context[0])) {
5001 dev_err(&instance->pdev->dev,
5002 "Failed to register IRQ from %s %d\n",
5003 __func__, __LINE__);
5004 return -1;
5005 }
5006 return 0;
5007 }
5008
5009 /**
5010 * megasas_setup_irqs_msix - register MSI-x interrupts.
5011 * @instance: Adapter soft state
5012 * @is_probe: Driver probe check
5013 *
5014 * Do not enable interrupt, only setup ISRs.
5015 *
5016 * Return 0 on success.
5017 */
5018 static int
5019 megasas_setup_irqs_msix(struct megasas_instance *instance, u8 is_probe)
5020 {
5021 int i, j;
5022 struct pci_dev *pdev;
5023
5024 pdev = instance->pdev;
5025
5026 /* Try MSI-x */
5027 for (i = 0; i < instance->msix_vectors; i++) {
5028 instance->irq_context[i].instance = instance;
5029 instance->irq_context[i].MSIxIndex = i;
5030 if (request_irq(pci_irq_vector(pdev, i),
5031 instance->instancet->service_isr, 0, "megasas",
5032 &instance->irq_context[i])) {
5033 dev_err(&instance->pdev->dev,
5034 "Failed to register IRQ for vector %d.\n", i);
5035 for (j = 0; j < i; j++)
5036 free_irq(pci_irq_vector(pdev, j),
5037 &instance->irq_context[j]);
5038 /* Retry irq register for IO_APIC*/
5039 instance->msix_vectors = 0;
5040 if (is_probe) {
5041 pci_free_irq_vectors(instance->pdev);
5042 return megasas_setup_irqs_ioapic(instance);
5043 } else {
5044 return -1;
5045 }
5046 }
5047 }
5048 return 0;
5049 }
5050
5051 /*
5052 * megasas_destroy_irqs- unregister interrupts.
5053 * @instance: Adapter soft state
5054 * return: void
5055 */
5056 static void
5057 megasas_destroy_irqs(struct megasas_instance *instance) {
5058
5059 int i;
5060
5061 if (instance->msix_vectors)
5062 for (i = 0; i < instance->msix_vectors; i++) {
5063 free_irq(pci_irq_vector(instance->pdev, i),
5064 &instance->irq_context[i]);
5065 }
5066 else
5067 free_irq(pci_irq_vector(instance->pdev, 0),
5068 &instance->irq_context[0]);
5069 }
5070
5071 /**
5072 * megasas_setup_jbod_map - setup jbod map for FP seq_number.
5073 * @instance: Adapter soft state
5074 * @is_probe: Driver probe check
5075 *
5076 * Return 0 on success.
5077 */
5078 void
5079 megasas_setup_jbod_map(struct megasas_instance *instance)
5080 {
5081 int i;
5082 struct fusion_context *fusion = instance->ctrl_context;
5083 u32 pd_seq_map_sz;
5084
5085 pd_seq_map_sz = sizeof(struct MR_PD_CFG_SEQ_NUM_SYNC) +
5086 (sizeof(struct MR_PD_CFG_SEQ) * (MAX_PHYSICAL_DEVICES - 1));
5087
5088 if (reset_devices || !fusion ||
5089 !instance->ctrl_info->adapterOperations3.useSeqNumJbodFP) {
5090 dev_info(&instance->pdev->dev,
5091 "Jbod map is not supported %s %d\n",
5092 __func__, __LINE__);
5093 instance->use_seqnum_jbod_fp = false;
5094 return;
5095 }
5096
5097 if (fusion->pd_seq_sync[0])
5098 goto skip_alloc;
5099
5100 for (i = 0; i < JBOD_MAPS_COUNT; i++) {
5101 fusion->pd_seq_sync[i] = dma_alloc_coherent
5102 (&instance->pdev->dev, pd_seq_map_sz,
5103 &fusion->pd_seq_phys[i], GFP_KERNEL);
5104 if (!fusion->pd_seq_sync[i]) {
5105 dev_err(&instance->pdev->dev,
5106 "Failed to allocate memory from %s %d\n",
5107 __func__, __LINE__);
5108 if (i == 1) {
5109 dma_free_coherent(&instance->pdev->dev,
5110 pd_seq_map_sz, fusion->pd_seq_sync[0],
5111 fusion->pd_seq_phys[0]);
5112 fusion->pd_seq_sync[0] = NULL;
5113 }
5114 instance->use_seqnum_jbod_fp = false;
5115 return;
5116 }
5117 }
5118
5119 skip_alloc:
5120 if (!megasas_sync_pd_seq_num(instance, false) &&
5121 !megasas_sync_pd_seq_num(instance, true))
5122 instance->use_seqnum_jbod_fp = true;
5123 else
5124 instance->use_seqnum_jbod_fp = false;
5125 }
5126
5127 /**
5128 * megasas_init_fw - Initializes the FW
5129 * @instance: Adapter soft state
5130 *
5131 * This is the main function for initializing firmware
5132 */
5133
5134 static int megasas_init_fw(struct megasas_instance *instance)
5135 {
5136 u32 max_sectors_1;
5137 u32 max_sectors_2, tmp_sectors, msix_enable;
5138 u32 scratch_pad_2, scratch_pad_3, scratch_pad_4;
5139 resource_size_t base_addr;
5140 struct megasas_register_set __iomem *reg_set;
5141 struct megasas_ctrl_info *ctrl_info = NULL;
5142 unsigned long bar_list;
5143 int i, j, loop, fw_msix_count = 0;
5144 struct IOV_111 *iovPtr;
5145 struct fusion_context *fusion;
5146
5147 fusion = instance->ctrl_context;
5148
5149 /* Find first memory bar */
5150 bar_list = pci_select_bars(instance->pdev, IORESOURCE_MEM);
5151 instance->bar = find_first_bit(&bar_list, BITS_PER_LONG);
5152 if (pci_request_selected_regions(instance->pdev, 1<<instance->bar,
5153 "megasas: LSI")) {
5154 dev_printk(KERN_DEBUG, &instance->pdev->dev, "IO memory region busy!\n");
5155 return -EBUSY;
5156 }
5157
5158 base_addr = pci_resource_start(instance->pdev, instance->bar);
5159 instance->reg_set = ioremap_nocache(base_addr, 8192);
5160
5161 if (!instance->reg_set) {
5162 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to map IO mem\n");
5163 goto fail_ioremap;
5164 }
5165
5166 reg_set = instance->reg_set;
5167
5168 if (fusion)
5169 instance->instancet = &megasas_instance_template_fusion;
5170 else {
5171 switch (instance->pdev->device) {
5172 case PCI_DEVICE_ID_LSI_SAS1078R:
5173 case PCI_DEVICE_ID_LSI_SAS1078DE:
5174 instance->instancet = &megasas_instance_template_ppc;
5175 break;
5176 case PCI_DEVICE_ID_LSI_SAS1078GEN2:
5177 case PCI_DEVICE_ID_LSI_SAS0079GEN2:
5178 instance->instancet = &megasas_instance_template_gen2;
5179 break;
5180 case PCI_DEVICE_ID_LSI_SAS0073SKINNY:
5181 case PCI_DEVICE_ID_LSI_SAS0071SKINNY:
5182 instance->instancet = &megasas_instance_template_skinny;
5183 break;
5184 case PCI_DEVICE_ID_LSI_SAS1064R:
5185 case PCI_DEVICE_ID_DELL_PERC5:
5186 default:
5187 instance->instancet = &megasas_instance_template_xscale;
5188 instance->pd_list_not_supported = 1;
5189 break;
5190 }
5191 }
5192
5193 if (megasas_transition_to_ready(instance, 0)) {
5194 atomic_set(&instance->fw_reset_no_pci_access, 1);
5195 instance->instancet->adp_reset
5196 (instance, instance->reg_set);
5197 atomic_set(&instance->fw_reset_no_pci_access, 0);
5198 dev_info(&instance->pdev->dev,
5199 "FW restarted successfully from %s!\n",
5200 __func__);
5201
5202 /*waitting for about 30 second before retry*/
5203 ssleep(30);
5204
5205 if (megasas_transition_to_ready(instance, 0))
5206 goto fail_ready_state;
5207 }
5208
5209 if (instance->is_ventura) {
5210 scratch_pad_3 =
5211 readl(&instance->reg_set->outbound_scratch_pad_3);
5212 instance->max_raid_mapsize = ((scratch_pad_3 >>
5213 MR_MAX_RAID_MAP_SIZE_OFFSET_SHIFT) &
5214 MR_MAX_RAID_MAP_SIZE_MASK);
5215 }
5216
5217 /* Check if MSI-X is supported while in ready state */
5218 msix_enable = (instance->instancet->read_fw_status_reg(reg_set) &
5219 0x4000000) >> 0x1a;
5220 if (msix_enable && !msix_disable) {
5221 int irq_flags = PCI_IRQ_MSIX;
5222
5223 scratch_pad_2 = readl
5224 (&instance->reg_set->outbound_scratch_pad_2);
5225 /* Check max MSI-X vectors */
5226 if (fusion) {
5227 if (fusion->adapter_type == THUNDERBOLT_SERIES) { /* Thunderbolt Series*/
5228 instance->msix_vectors = (scratch_pad_2
5229 & MR_MAX_REPLY_QUEUES_OFFSET) + 1;
5230 fw_msix_count = instance->msix_vectors;
5231 } else { /* Invader series supports more than 8 MSI-x vectors*/
5232 instance->msix_vectors = ((scratch_pad_2
5233 & MR_MAX_REPLY_QUEUES_EXT_OFFSET)
5234 >> MR_MAX_REPLY_QUEUES_EXT_OFFSET_SHIFT) + 1;
5235 if (instance->msix_vectors > 16)
5236 instance->msix_combined = true;
5237
5238 if (rdpq_enable)
5239 instance->is_rdpq = (scratch_pad_2 & MR_RDPQ_MODE_OFFSET) ?
5240 1 : 0;
5241 fw_msix_count = instance->msix_vectors;
5242 /* Save 1-15 reply post index address to local memory
5243 * Index 0 is already saved from reg offset
5244 * MPI2_REPLY_POST_HOST_INDEX_OFFSET
5245 */
5246 for (loop = 1; loop < MR_MAX_MSIX_REG_ARRAY; loop++) {
5247 instance->reply_post_host_index_addr[loop] =
5248 (u32 __iomem *)
5249 ((u8 __iomem *)instance->reg_set +
5250 MPI2_SUP_REPLY_POST_HOST_INDEX_OFFSET
5251 + (loop * 0x10));
5252 }
5253 }
5254 if (msix_vectors)
5255 instance->msix_vectors = min(msix_vectors,
5256 instance->msix_vectors);
5257 } else /* MFI adapters */
5258 instance->msix_vectors = 1;
5259 /* Don't bother allocating more MSI-X vectors than cpus */
5260 instance->msix_vectors = min(instance->msix_vectors,
5261 (unsigned int)num_online_cpus());
5262 if (smp_affinity_enable)
5263 irq_flags |= PCI_IRQ_AFFINITY;
5264 i = pci_alloc_irq_vectors(instance->pdev, 1,
5265 instance->msix_vectors, irq_flags);
5266 if (i > 0)
5267 instance->msix_vectors = i;
5268 else
5269 instance->msix_vectors = 0;
5270 }
5271 /*
5272 * MSI-X host index 0 is common for all adapter.
5273 * It is used for all MPT based Adapters.
5274 */
5275 if (instance->msix_combined) {
5276 instance->reply_post_host_index_addr[0] =
5277 (u32 *)((u8 *)instance->reg_set +
5278 MPI2_SUP_REPLY_POST_HOST_INDEX_OFFSET);
5279 } else {
5280 instance->reply_post_host_index_addr[0] =
5281 (u32 *)((u8 *)instance->reg_set +
5282 MPI2_REPLY_POST_HOST_INDEX_OFFSET);
5283 }
5284
5285 if (!instance->msix_vectors) {
5286 i = pci_alloc_irq_vectors(instance->pdev, 1, 1, PCI_IRQ_LEGACY);
5287 if (i < 0)
5288 goto fail_setup_irqs;
5289 }
5290
5291 dev_info(&instance->pdev->dev,
5292 "firmware supports msix\t: (%d)", fw_msix_count);
5293 dev_info(&instance->pdev->dev,
5294 "current msix/online cpus\t: (%d/%d)\n",
5295 instance->msix_vectors, (unsigned int)num_online_cpus());
5296 dev_info(&instance->pdev->dev,
5297 "RDPQ mode\t: (%s)\n", instance->is_rdpq ? "enabled" : "disabled");
5298
5299 tasklet_init(&instance->isr_tasklet, instance->instancet->tasklet,
5300 (unsigned long)instance);
5301
5302 instance->ctrl_info = kzalloc(sizeof(struct megasas_ctrl_info),
5303 GFP_KERNEL);
5304 if (instance->ctrl_info == NULL)
5305 goto fail_init_adapter;
5306
5307 /*
5308 * Below are default value for legacy Firmware.
5309 * non-fusion based controllers
5310 */
5311 instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES;
5312 instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES;
5313 /* Get operational params, sge flags, send init cmd to controller */
5314 if (instance->instancet->init_adapter(instance))
5315 goto fail_init_adapter;
5316
5317 if (instance->is_ventura) {
5318 scratch_pad_4 =
5319 readl(&instance->reg_set->outbound_scratch_pad_4);
5320 if ((scratch_pad_4 & MR_NVME_PAGE_SIZE_MASK) >=
5321 MR_DEFAULT_NVME_PAGE_SHIFT)
5322 instance->nvme_page_size =
5323 (1 << (scratch_pad_4 & MR_NVME_PAGE_SIZE_MASK));
5324
5325 dev_info(&instance->pdev->dev,
5326 "NVME page size\t: (%d)\n", instance->nvme_page_size);
5327 }
5328
5329 if (instance->msix_vectors ?
5330 megasas_setup_irqs_msix(instance, 1) :
5331 megasas_setup_irqs_ioapic(instance))
5332 goto fail_init_adapter;
5333
5334 instance->instancet->enable_intr(instance);
5335
5336 dev_info(&instance->pdev->dev, "INIT adapter done\n");
5337
5338 megasas_setup_jbod_map(instance);
5339
5340 /** for passthrough
5341 * the following function will get the PD LIST.
5342 */
5343 memset(instance->pd_list, 0,
5344 (MEGASAS_MAX_PD * sizeof(struct megasas_pd_list)));
5345 if (megasas_get_pd_list(instance) < 0) {
5346 dev_err(&instance->pdev->dev, "failed to get PD list\n");
5347 goto fail_get_ld_pd_list;
5348 }
5349
5350 memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS);
5351
5352 /* stream detection initialization */
5353 if (instance->is_ventura && fusion) {
5354 fusion->stream_detect_by_ld =
5355 kzalloc(sizeof(struct LD_STREAM_DETECT *)
5356 * MAX_LOGICAL_DRIVES_EXT,
5357 GFP_KERNEL);
5358 if (!fusion->stream_detect_by_ld) {
5359 dev_err(&instance->pdev->dev,
5360 "unable to allocate stream detection for pool of LDs\n");
5361 goto fail_get_ld_pd_list;
5362 }
5363 for (i = 0; i < MAX_LOGICAL_DRIVES_EXT; ++i) {
5364 fusion->stream_detect_by_ld[i] =
5365 kmalloc(sizeof(struct LD_STREAM_DETECT),
5366 GFP_KERNEL);
5367 if (!fusion->stream_detect_by_ld[i]) {
5368 dev_err(&instance->pdev->dev,
5369 "unable to allocate stream detect by LD\n ");
5370 for (j = 0; j < i; ++j)
5371 kfree(fusion->stream_detect_by_ld[j]);
5372 kfree(fusion->stream_detect_by_ld);
5373 fusion->stream_detect_by_ld = NULL;
5374 goto fail_get_ld_pd_list;
5375 }
5376 fusion->stream_detect_by_ld[i]->mru_bit_map
5377 = MR_STREAM_BITMAP;
5378 }
5379 }
5380
5381 if (megasas_ld_list_query(instance,
5382 MR_LD_QUERY_TYPE_EXPOSED_TO_HOST))
5383 goto fail_get_ld_pd_list;
5384
5385 /*
5386 * Compute the max allowed sectors per IO: The controller info has two
5387 * limits on max sectors. Driver should use the minimum of these two.
5388 *
5389 * 1 << stripe_sz_ops.min = max sectors per strip
5390 *
5391 * Note that older firmwares ( < FW ver 30) didn't report information
5392 * to calculate max_sectors_1. So the number ended up as zero always.
5393 */
5394 tmp_sectors = 0;
5395 ctrl_info = instance->ctrl_info;
5396
5397 max_sectors_1 = (1 << ctrl_info->stripe_sz_ops.min) *
5398 le16_to_cpu(ctrl_info->max_strips_per_io);
5399 max_sectors_2 = le32_to_cpu(ctrl_info->max_request_size);
5400
5401 tmp_sectors = min_t(u32, max_sectors_1, max_sectors_2);
5402
5403 instance->peerIsPresent = ctrl_info->cluster.peerIsPresent;
5404 instance->passive = ctrl_info->cluster.passive;
5405 memcpy(instance->clusterId, ctrl_info->clusterId, sizeof(instance->clusterId));
5406 instance->UnevenSpanSupport =
5407 ctrl_info->adapterOperations2.supportUnevenSpans;
5408 if (instance->UnevenSpanSupport) {
5409 struct fusion_context *fusion = instance->ctrl_context;
5410 if (MR_ValidateMapInfo(instance))
5411 fusion->fast_path_io = 1;
5412 else
5413 fusion->fast_path_io = 0;
5414
5415 }
5416 if (ctrl_info->host_interface.SRIOV) {
5417 instance->requestorId = ctrl_info->iov.requestorId;
5418 if (instance->pdev->device == PCI_DEVICE_ID_LSI_PLASMA) {
5419 if (!ctrl_info->adapterOperations2.activePassive)
5420 instance->PlasmaFW111 = 1;
5421
5422 dev_info(&instance->pdev->dev, "SR-IOV: firmware type: %s\n",
5423 instance->PlasmaFW111 ? "1.11" : "new");
5424
5425 if (instance->PlasmaFW111) {
5426 iovPtr = (struct IOV_111 *)
5427 ((unsigned char *)ctrl_info + IOV_111_OFFSET);
5428 instance->requestorId = iovPtr->requestorId;
5429 }
5430 }
5431 dev_info(&instance->pdev->dev, "SRIOV: VF requestorId %d\n",
5432 instance->requestorId);
5433 }
5434
5435 instance->crash_dump_fw_support =
5436 ctrl_info->adapterOperations3.supportCrashDump;
5437 instance->crash_dump_drv_support =
5438 (instance->crash_dump_fw_support &&
5439 instance->crash_dump_buf);
5440 if (instance->crash_dump_drv_support)
5441 megasas_set_crash_dump_params(instance,
5442 MR_CRASH_BUF_TURN_OFF);
5443
5444 else {
5445 if (instance->crash_dump_buf)
5446 pci_free_consistent(instance->pdev,
5447 CRASH_DMA_BUF_SIZE,
5448 instance->crash_dump_buf,
5449 instance->crash_dump_h);
5450 instance->crash_dump_buf = NULL;
5451 }
5452
5453
5454 dev_info(&instance->pdev->dev,
5455 "pci id\t\t: (0x%04x)/(0x%04x)/(0x%04x)/(0x%04x)\n",
5456 le16_to_cpu(ctrl_info->pci.vendor_id),
5457 le16_to_cpu(ctrl_info->pci.device_id),
5458 le16_to_cpu(ctrl_info->pci.sub_vendor_id),
5459 le16_to_cpu(ctrl_info->pci.sub_device_id));
5460 dev_info(&instance->pdev->dev, "unevenspan support : %s\n",
5461 instance->UnevenSpanSupport ? "yes" : "no");
5462 dev_info(&instance->pdev->dev, "firmware crash dump : %s\n",
5463 instance->crash_dump_drv_support ? "yes" : "no");
5464 dev_info(&instance->pdev->dev, "jbod sync map : %s\n",
5465 instance->use_seqnum_jbod_fp ? "yes" : "no");
5466
5467
5468 instance->max_sectors_per_req = instance->max_num_sge *
5469 SGE_BUFFER_SIZE / 512;
5470 if (tmp_sectors && (instance->max_sectors_per_req > tmp_sectors))
5471 instance->max_sectors_per_req = tmp_sectors;
5472
5473 /* Check for valid throttlequeuedepth module parameter */
5474 if (throttlequeuedepth &&
5475 throttlequeuedepth <= instance->max_scsi_cmds)
5476 instance->throttlequeuedepth = throttlequeuedepth;
5477 else
5478 instance->throttlequeuedepth =
5479 MEGASAS_THROTTLE_QUEUE_DEPTH;
5480
5481 if (resetwaittime > MEGASAS_RESET_WAIT_TIME)
5482 resetwaittime = MEGASAS_RESET_WAIT_TIME;
5483
5484 if ((scmd_timeout < 10) || (scmd_timeout > MEGASAS_DEFAULT_CMD_TIMEOUT))
5485 scmd_timeout = MEGASAS_DEFAULT_CMD_TIMEOUT;
5486
5487 /* Launch SR-IOV heartbeat timer */
5488 if (instance->requestorId) {
5489 if (!megasas_sriov_start_heartbeat(instance, 1))
5490 megasas_start_timer(instance,
5491 &instance->sriov_heartbeat_timer,
5492 megasas_sriov_heartbeat_handler,
5493 MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF);
5494 else
5495 instance->skip_heartbeat_timer_del = 1;
5496 }
5497
5498 return 0;
5499
5500 fail_get_ld_pd_list:
5501 instance->instancet->disable_intr(instance);
5502 fail_init_adapter:
5503 megasas_destroy_irqs(instance);
5504 fail_setup_irqs:
5505 if (instance->msix_vectors)
5506 pci_free_irq_vectors(instance->pdev);
5507 instance->msix_vectors = 0;
5508 fail_ready_state:
5509 kfree(instance->ctrl_info);
5510 instance->ctrl_info = NULL;
5511 iounmap(instance->reg_set);
5512
5513 fail_ioremap:
5514 pci_release_selected_regions(instance->pdev, 1<<instance->bar);
5515
5516 dev_err(&instance->pdev->dev, "Failed from %s %d\n",
5517 __func__, __LINE__);
5518 return -EINVAL;
5519 }
5520
5521 /**
5522 * megasas_release_mfi - Reverses the FW initialization
5523 * @instance: Adapter soft state
5524 */
5525 static void megasas_release_mfi(struct megasas_instance *instance)
5526 {
5527 u32 reply_q_sz = sizeof(u32) *(instance->max_mfi_cmds + 1);
5528
5529 if (instance->reply_queue)
5530 pci_free_consistent(instance->pdev, reply_q_sz,
5531 instance->reply_queue, instance->reply_queue_h);
5532
5533 megasas_free_cmds(instance);
5534
5535 iounmap(instance->reg_set);
5536
5537 pci_release_selected_regions(instance->pdev, 1<<instance->bar);
5538 }
5539
5540 /**
5541 * megasas_get_seq_num - Gets latest event sequence numbers
5542 * @instance: Adapter soft state
5543 * @eli: FW event log sequence numbers information
5544 *
5545 * FW maintains a log of all events in a non-volatile area. Upper layers would
5546 * usually find out the latest sequence number of the events, the seq number at
5547 * the boot etc. They would "read" all the events below the latest seq number
5548 * by issuing a direct fw cmd (DCMD). For the future events (beyond latest seq
5549 * number), they would subsribe to AEN (asynchronous event notification) and
5550 * wait for the events to happen.
5551 */
5552 static int
5553 megasas_get_seq_num(struct megasas_instance *instance,
5554 struct megasas_evt_log_info *eli)
5555 {
5556 struct megasas_cmd *cmd;
5557 struct megasas_dcmd_frame *dcmd;
5558 struct megasas_evt_log_info *el_info;
5559 dma_addr_t el_info_h = 0;
5560
5561 cmd = megasas_get_cmd(instance);
5562
5563 if (!cmd) {
5564 return -ENOMEM;
5565 }
5566
5567 dcmd = &cmd->frame->dcmd;
5568 el_info = pci_alloc_consistent(instance->pdev,
5569 sizeof(struct megasas_evt_log_info),
5570 &el_info_h);
5571
5572 if (!el_info) {
5573 megasas_return_cmd(instance, cmd);
5574 return -ENOMEM;
5575 }
5576
5577 memset(el_info, 0, sizeof(*el_info));
5578 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
5579
5580 dcmd->cmd = MFI_CMD_DCMD;
5581 dcmd->cmd_status = 0x0;
5582 dcmd->sge_count = 1;
5583 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_READ);
5584 dcmd->timeout = 0;
5585 dcmd->pad_0 = 0;
5586 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct megasas_evt_log_info));
5587 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_EVENT_GET_INFO);
5588 dcmd->sgl.sge32[0].phys_addr = cpu_to_le32(el_info_h);
5589 dcmd->sgl.sge32[0].length = cpu_to_le32(sizeof(struct megasas_evt_log_info));
5590
5591 if (megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS) ==
5592 DCMD_SUCCESS) {
5593 /*
5594 * Copy the data back into callers buffer
5595 */
5596 eli->newest_seq_num = el_info->newest_seq_num;
5597 eli->oldest_seq_num = el_info->oldest_seq_num;
5598 eli->clear_seq_num = el_info->clear_seq_num;
5599 eli->shutdown_seq_num = el_info->shutdown_seq_num;
5600 eli->boot_seq_num = el_info->boot_seq_num;
5601 } else
5602 dev_err(&instance->pdev->dev, "DCMD failed "
5603 "from %s\n", __func__);
5604
5605 pci_free_consistent(instance->pdev, sizeof(struct megasas_evt_log_info),
5606 el_info, el_info_h);
5607
5608 megasas_return_cmd(instance, cmd);
5609
5610 return 0;
5611 }
5612
5613 /**
5614 * megasas_register_aen - Registers for asynchronous event notification
5615 * @instance: Adapter soft state
5616 * @seq_num: The starting sequence number
5617 * @class_locale: Class of the event
5618 *
5619 * This function subscribes for AEN for events beyond the @seq_num. It requests
5620 * to be notified if and only if the event is of type @class_locale
5621 */
5622 static int
5623 megasas_register_aen(struct megasas_instance *instance, u32 seq_num,
5624 u32 class_locale_word)
5625 {
5626 int ret_val;
5627 struct megasas_cmd *cmd;
5628 struct megasas_dcmd_frame *dcmd;
5629 union megasas_evt_class_locale curr_aen;
5630 union megasas_evt_class_locale prev_aen;
5631
5632 /*
5633 * If there an AEN pending already (aen_cmd), check if the
5634 * class_locale of that pending AEN is inclusive of the new
5635 * AEN request we currently have. If it is, then we don't have
5636 * to do anything. In other words, whichever events the current
5637 * AEN request is subscribing to, have already been subscribed
5638 * to.
5639 *
5640 * If the old_cmd is _not_ inclusive, then we have to abort
5641 * that command, form a class_locale that is superset of both
5642 * old and current and re-issue to the FW
5643 */
5644
5645 curr_aen.word = class_locale_word;
5646
5647 if (instance->aen_cmd) {
5648
5649 prev_aen.word =
5650 le32_to_cpu(instance->aen_cmd->frame->dcmd.mbox.w[1]);
5651
5652 /*
5653 * A class whose enum value is smaller is inclusive of all
5654 * higher values. If a PROGRESS (= -1) was previously
5655 * registered, then a new registration requests for higher
5656 * classes need not be sent to FW. They are automatically
5657 * included.
5658 *
5659 * Locale numbers don't have such hierarchy. They are bitmap
5660 * values
5661 */
5662 if ((prev_aen.members.class <= curr_aen.members.class) &&
5663 !((prev_aen.members.locale & curr_aen.members.locale) ^
5664 curr_aen.members.locale)) {
5665 /*
5666 * Previously issued event registration includes
5667 * current request. Nothing to do.
5668 */
5669 return 0;
5670 } else {
5671 curr_aen.members.locale |= prev_aen.members.locale;
5672
5673 if (prev_aen.members.class < curr_aen.members.class)
5674 curr_aen.members.class = prev_aen.members.class;
5675
5676 instance->aen_cmd->abort_aen = 1;
5677 ret_val = megasas_issue_blocked_abort_cmd(instance,
5678 instance->
5679 aen_cmd, 30);
5680
5681 if (ret_val) {
5682 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to abort "
5683 "previous AEN command\n");
5684 return ret_val;
5685 }
5686 }
5687 }
5688
5689 cmd = megasas_get_cmd(instance);
5690
5691 if (!cmd)
5692 return -ENOMEM;
5693
5694 dcmd = &cmd->frame->dcmd;
5695
5696 memset(instance->evt_detail, 0, sizeof(struct megasas_evt_detail));
5697
5698 /*
5699 * Prepare DCMD for aen registration
5700 */
5701 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
5702
5703 dcmd->cmd = MFI_CMD_DCMD;
5704 dcmd->cmd_status = 0x0;
5705 dcmd->sge_count = 1;
5706 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_READ);
5707 dcmd->timeout = 0;
5708 dcmd->pad_0 = 0;
5709 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct megasas_evt_detail));
5710 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_EVENT_WAIT);
5711 dcmd->mbox.w[0] = cpu_to_le32(seq_num);
5712 instance->last_seq_num = seq_num;
5713 dcmd->mbox.w[1] = cpu_to_le32(curr_aen.word);
5714 dcmd->sgl.sge32[0].phys_addr = cpu_to_le32(instance->evt_detail_h);
5715 dcmd->sgl.sge32[0].length = cpu_to_le32(sizeof(struct megasas_evt_detail));
5716
5717 if (instance->aen_cmd != NULL) {
5718 megasas_return_cmd(instance, cmd);
5719 return 0;
5720 }
5721
5722 /*
5723 * Store reference to the cmd used to register for AEN. When an
5724 * application wants us to register for AEN, we have to abort this
5725 * cmd and re-register with a new EVENT LOCALE supplied by that app
5726 */
5727 instance->aen_cmd = cmd;
5728
5729 /*
5730 * Issue the aen registration frame
5731 */
5732 instance->instancet->issue_dcmd(instance, cmd);
5733
5734 return 0;
5735 }
5736
5737 /* megasas_get_target_prop - Send DCMD with below details to firmware.
5738 *
5739 * This DCMD will fetch few properties of LD/system PD defined
5740 * in MR_TARGET_DEV_PROPERTIES. eg. Queue Depth, MDTS value.
5741 *
5742 * DCMD send by drivers whenever new target is added to the OS.
5743 *
5744 * dcmd.opcode - MR_DCMD_DEV_GET_TARGET_PROP
5745 * dcmd.mbox.b[0] - DCMD is to be fired for LD or system PD.
5746 * 0 = system PD, 1 = LD.
5747 * dcmd.mbox.s[1] - TargetID for LD/system PD.
5748 * dcmd.sge IN - Pointer to return MR_TARGET_DEV_PROPERTIES.
5749 *
5750 * @instance: Adapter soft state
5751 * @sdev: OS provided scsi device
5752 *
5753 * Returns 0 on success non-zero on failure.
5754 */
5755 static int
5756 megasas_get_target_prop(struct megasas_instance *instance,
5757 struct scsi_device *sdev)
5758 {
5759 int ret;
5760 struct megasas_cmd *cmd;
5761 struct megasas_dcmd_frame *dcmd;
5762 u16 targetId = (sdev->channel % 2) + sdev->id;
5763
5764 cmd = megasas_get_cmd(instance);
5765
5766 if (!cmd) {
5767 dev_err(&instance->pdev->dev,
5768 "Failed to get cmd %s\n", __func__);
5769 return -ENOMEM;
5770 }
5771
5772 dcmd = &cmd->frame->dcmd;
5773
5774 memset(instance->tgt_prop, 0, sizeof(*instance->tgt_prop));
5775 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
5776 dcmd->mbox.b[0] = MEGASAS_IS_LOGICAL(sdev);
5777
5778 dcmd->mbox.s[1] = cpu_to_le16(targetId);
5779 dcmd->cmd = MFI_CMD_DCMD;
5780 dcmd->cmd_status = 0xFF;
5781 dcmd->sge_count = 1;
5782 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_READ);
5783 dcmd->timeout = 0;
5784 dcmd->pad_0 = 0;
5785 dcmd->data_xfer_len =
5786 cpu_to_le32(sizeof(struct MR_TARGET_PROPERTIES));
5787 dcmd->opcode = cpu_to_le32(MR_DCMD_DRV_GET_TARGET_PROP);
5788 dcmd->sgl.sge32[0].phys_addr =
5789 cpu_to_le32(instance->tgt_prop_h);
5790 dcmd->sgl.sge32[0].length =
5791 cpu_to_le32(sizeof(struct MR_TARGET_PROPERTIES));
5792
5793 if (instance->ctrl_context && !instance->mask_interrupts)
5794 ret = megasas_issue_blocked_cmd(instance,
5795 cmd, MFI_IO_TIMEOUT_SECS);
5796 else
5797 ret = megasas_issue_polled(instance, cmd);
5798
5799 switch (ret) {
5800 case DCMD_TIMEOUT:
5801 switch (dcmd_timeout_ocr_possible(instance)) {
5802 case INITIATE_OCR:
5803 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
5804 megasas_reset_fusion(instance->host,
5805 MFI_IO_TIMEOUT_OCR);
5806 break;
5807 case KILL_ADAPTER:
5808 megaraid_sas_kill_hba(instance);
5809 break;
5810 case IGNORE_TIMEOUT:
5811 dev_info(&instance->pdev->dev,
5812 "Ignore DCMD timeout: %s %d\n",
5813 __func__, __LINE__);
5814 break;
5815 }
5816 break;
5817
5818 default:
5819 megasas_return_cmd(instance, cmd);
5820 }
5821 if (ret != DCMD_SUCCESS)
5822 dev_err(&instance->pdev->dev,
5823 "return from %s %d return value %d\n",
5824 __func__, __LINE__, ret);
5825
5826 return ret;
5827 }
5828
5829 /**
5830 * megasas_start_aen - Subscribes to AEN during driver load time
5831 * @instance: Adapter soft state
5832 */
5833 static int megasas_start_aen(struct megasas_instance *instance)
5834 {
5835 struct megasas_evt_log_info eli;
5836 union megasas_evt_class_locale class_locale;
5837
5838 /*
5839 * Get the latest sequence number from FW
5840 */
5841 memset(&eli, 0, sizeof(eli));
5842
5843 if (megasas_get_seq_num(instance, &eli))
5844 return -1;
5845
5846 /*
5847 * Register AEN with FW for latest sequence number plus 1
5848 */
5849 class_locale.members.reserved = 0;
5850 class_locale.members.locale = MR_EVT_LOCALE_ALL;
5851 class_locale.members.class = MR_EVT_CLASS_DEBUG;
5852
5853 return megasas_register_aen(instance,
5854 le32_to_cpu(eli.newest_seq_num) + 1,
5855 class_locale.word);
5856 }
5857
5858 /**
5859 * megasas_io_attach - Attaches this driver to SCSI mid-layer
5860 * @instance: Adapter soft state
5861 */
5862 static int megasas_io_attach(struct megasas_instance *instance)
5863 {
5864 struct Scsi_Host *host = instance->host;
5865
5866 /*
5867 * Export parameters required by SCSI mid-layer
5868 */
5869 host->unique_id = instance->unique_id;
5870 host->can_queue = instance->max_scsi_cmds;
5871 host->this_id = instance->init_id;
5872 host->sg_tablesize = instance->max_num_sge;
5873
5874 if (instance->fw_support_ieee)
5875 instance->max_sectors_per_req = MEGASAS_MAX_SECTORS_IEEE;
5876
5877 /*
5878 * Check if the module parameter value for max_sectors can be used
5879 */
5880 if (max_sectors && max_sectors < instance->max_sectors_per_req)
5881 instance->max_sectors_per_req = max_sectors;
5882 else {
5883 if (max_sectors) {
5884 if (((instance->pdev->device ==
5885 PCI_DEVICE_ID_LSI_SAS1078GEN2) ||
5886 (instance->pdev->device ==
5887 PCI_DEVICE_ID_LSI_SAS0079GEN2)) &&
5888 (max_sectors <= MEGASAS_MAX_SECTORS)) {
5889 instance->max_sectors_per_req = max_sectors;
5890 } else {
5891 dev_info(&instance->pdev->dev, "max_sectors should be > 0"
5892 "and <= %d (or < 1MB for GEN2 controller)\n",
5893 instance->max_sectors_per_req);
5894 }
5895 }
5896 }
5897
5898 host->max_sectors = instance->max_sectors_per_req;
5899 host->cmd_per_lun = MEGASAS_DEFAULT_CMD_PER_LUN;
5900 host->max_channel = MEGASAS_MAX_CHANNELS - 1;
5901 host->max_id = MEGASAS_MAX_DEV_PER_CHANNEL;
5902 host->max_lun = MEGASAS_MAX_LUN;
5903 host->max_cmd_len = 16;
5904
5905 /*
5906 * Notify the mid-layer about the new controller
5907 */
5908 if (scsi_add_host(host, &instance->pdev->dev)) {
5909 dev_err(&instance->pdev->dev,
5910 "Failed to add host from %s %d\n",
5911 __func__, __LINE__);
5912 return -ENODEV;
5913 }
5914
5915 return 0;
5916 }
5917
5918 static int
5919 megasas_set_dma_mask(struct pci_dev *pdev)
5920 {
5921 /*
5922 * All our controllers are capable of performing 64-bit DMA
5923 */
5924 if (IS_DMA64) {
5925 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0) {
5926
5927 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0)
5928 goto fail_set_dma_mask;
5929 }
5930 } else {
5931 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0)
5932 goto fail_set_dma_mask;
5933 }
5934 /*
5935 * Ensure that all data structures are allocated in 32-bit
5936 * memory.
5937 */
5938 if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)) != 0) {
5939 /* Try 32bit DMA mask and 32 bit Consistent dma mask */
5940 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))
5941 && !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
5942 dev_info(&pdev->dev, "set 32bit DMA mask"
5943 "and 32 bit consistent mask\n");
5944 else
5945 goto fail_set_dma_mask;
5946 }
5947
5948 return 0;
5949
5950 fail_set_dma_mask:
5951 return 1;
5952 }
5953
5954 /**
5955 * megasas_probe_one - PCI hotplug entry point
5956 * @pdev: PCI device structure
5957 * @id: PCI ids of supported hotplugged adapter
5958 */
5959 static int megasas_probe_one(struct pci_dev *pdev,
5960 const struct pci_device_id *id)
5961 {
5962 int rval, pos;
5963 struct Scsi_Host *host;
5964 struct megasas_instance *instance;
5965 u16 control = 0;
5966 struct fusion_context *fusion = NULL;
5967
5968 /* Reset MSI-X in the kdump kernel */
5969 if (reset_devices) {
5970 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
5971 if (pos) {
5972 pci_read_config_word(pdev, pos + PCI_MSIX_FLAGS,
5973 &control);
5974 if (control & PCI_MSIX_FLAGS_ENABLE) {
5975 dev_info(&pdev->dev, "resetting MSI-X\n");
5976 pci_write_config_word(pdev,
5977 pos + PCI_MSIX_FLAGS,
5978 control &
5979 ~PCI_MSIX_FLAGS_ENABLE);
5980 }
5981 }
5982 }
5983
5984 /*
5985 * PCI prepping: enable device set bus mastering and dma mask
5986 */
5987 rval = pci_enable_device_mem(pdev);
5988
5989 if (rval) {
5990 return rval;
5991 }
5992
5993 pci_set_master(pdev);
5994
5995 if (megasas_set_dma_mask(pdev))
5996 goto fail_set_dma_mask;
5997
5998 host = scsi_host_alloc(&megasas_template,
5999 sizeof(struct megasas_instance));
6000
6001 if (!host) {
6002 dev_printk(KERN_DEBUG, &pdev->dev, "scsi_host_alloc failed\n");
6003 goto fail_alloc_instance;
6004 }
6005
6006 instance = (struct megasas_instance *)host->hostdata;
6007 memset(instance, 0, sizeof(*instance));
6008 atomic_set(&instance->fw_reset_no_pci_access, 0);
6009 instance->pdev = pdev;
6010
6011 switch (instance->pdev->device) {
6012 case PCI_DEVICE_ID_LSI_VENTURA:
6013 case PCI_DEVICE_ID_LSI_HARPOON:
6014 case PCI_DEVICE_ID_LSI_TOMCAT:
6015 case PCI_DEVICE_ID_LSI_VENTURA_4PORT:
6016 case PCI_DEVICE_ID_LSI_CRUSADER_4PORT:
6017 instance->is_ventura = true;
6018 case PCI_DEVICE_ID_LSI_FUSION:
6019 case PCI_DEVICE_ID_LSI_PLASMA:
6020 case PCI_DEVICE_ID_LSI_INVADER:
6021 case PCI_DEVICE_ID_LSI_FURY:
6022 case PCI_DEVICE_ID_LSI_INTRUDER:
6023 case PCI_DEVICE_ID_LSI_INTRUDER_24:
6024 case PCI_DEVICE_ID_LSI_CUTLASS_52:
6025 case PCI_DEVICE_ID_LSI_CUTLASS_53:
6026 {
6027 if (megasas_alloc_fusion_context(instance)) {
6028 megasas_free_fusion_context(instance);
6029 goto fail_alloc_dma_buf;
6030 }
6031 fusion = instance->ctrl_context;
6032
6033 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_FUSION) ||
6034 (instance->pdev->device == PCI_DEVICE_ID_LSI_PLASMA))
6035 fusion->adapter_type = THUNDERBOLT_SERIES;
6036 else if (instance->is_ventura)
6037 fusion->adapter_type = VENTURA_SERIES;
6038 else
6039 fusion->adapter_type = INVADER_SERIES;
6040 }
6041 break;
6042 default: /* For all other supported controllers */
6043
6044 instance->producer =
6045 pci_alloc_consistent(pdev, sizeof(u32),
6046 &instance->producer_h);
6047 instance->consumer =
6048 pci_alloc_consistent(pdev, sizeof(u32),
6049 &instance->consumer_h);
6050
6051 if (!instance->producer || !instance->consumer) {
6052 dev_printk(KERN_DEBUG, &pdev->dev, "Failed to allocate "
6053 "memory for producer, consumer\n");
6054 goto fail_alloc_dma_buf;
6055 }
6056
6057 *instance->producer = 0;
6058 *instance->consumer = 0;
6059 break;
6060 }
6061
6062 /* Crash dump feature related initialisation*/
6063 instance->drv_buf_index = 0;
6064 instance->drv_buf_alloc = 0;
6065 instance->crash_dump_fw_support = 0;
6066 instance->crash_dump_app_support = 0;
6067 instance->fw_crash_state = UNAVAILABLE;
6068 spin_lock_init(&instance->crashdump_lock);
6069 instance->crash_dump_buf = NULL;
6070
6071 megasas_poll_wait_aen = 0;
6072 instance->flag_ieee = 0;
6073 instance->ev = NULL;
6074 instance->issuepend_done = 1;
6075 atomic_set(&instance->adprecovery, MEGASAS_HBA_OPERATIONAL);
6076 instance->is_imr = 0;
6077
6078 instance->evt_detail = pci_alloc_consistent(pdev,
6079 sizeof(struct
6080 megasas_evt_detail),
6081 &instance->evt_detail_h);
6082
6083 if (!instance->evt_detail) {
6084 dev_printk(KERN_DEBUG, &pdev->dev, "Failed to allocate memory for "
6085 "event detail structure\n");
6086 goto fail_alloc_dma_buf;
6087 }
6088
6089 if (!reset_devices) {
6090 instance->system_info_buf = pci_zalloc_consistent(pdev,
6091 sizeof(struct MR_DRV_SYSTEM_INFO),
6092 &instance->system_info_h);
6093 if (!instance->system_info_buf)
6094 dev_info(&instance->pdev->dev, "Can't allocate system info buffer\n");
6095
6096 instance->pd_info = pci_alloc_consistent(pdev,
6097 sizeof(struct MR_PD_INFO), &instance->pd_info_h);
6098
6099 instance->pd_info = pci_alloc_consistent(pdev,
6100 sizeof(struct MR_PD_INFO), &instance->pd_info_h);
6101 instance->tgt_prop = pci_alloc_consistent(pdev,
6102 sizeof(struct MR_TARGET_PROPERTIES), &instance->tgt_prop_h);
6103
6104 if (!instance->pd_info)
6105 dev_err(&instance->pdev->dev, "Failed to alloc mem for pd_info\n");
6106
6107 if (!instance->tgt_prop)
6108 dev_err(&instance->pdev->dev, "Failed to alloc mem for tgt_prop\n");
6109
6110 instance->crash_dump_buf = pci_alloc_consistent(pdev,
6111 CRASH_DMA_BUF_SIZE,
6112 &instance->crash_dump_h);
6113 if (!instance->crash_dump_buf)
6114 dev_err(&pdev->dev, "Can't allocate Firmware "
6115 "crash dump DMA buffer\n");
6116 }
6117
6118 /*
6119 * Initialize locks and queues
6120 */
6121 INIT_LIST_HEAD(&instance->cmd_pool);
6122 INIT_LIST_HEAD(&instance->internal_reset_pending_q);
6123
6124 atomic_set(&instance->fw_outstanding,0);
6125
6126 init_waitqueue_head(&instance->int_cmd_wait_q);
6127 init_waitqueue_head(&instance->abort_cmd_wait_q);
6128
6129 spin_lock_init(&instance->mfi_pool_lock);
6130 spin_lock_init(&instance->hba_lock);
6131 spin_lock_init(&instance->stream_lock);
6132 spin_lock_init(&instance->completion_lock);
6133
6134 mutex_init(&instance->reset_mutex);
6135 mutex_init(&instance->hba_mutex);
6136
6137 /*
6138 * Initialize PCI related and misc parameters
6139 */
6140 instance->host = host;
6141 instance->unique_id = pdev->bus->number << 8 | pdev->devfn;
6142 instance->init_id = MEGASAS_DEFAULT_INIT_ID;
6143 instance->ctrl_info = NULL;
6144
6145
6146 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
6147 (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY))
6148 instance->flag_ieee = 1;
6149
6150 megasas_dbg_lvl = 0;
6151 instance->flag = 0;
6152 instance->unload = 1;
6153 instance->last_time = 0;
6154 instance->disableOnlineCtrlReset = 1;
6155 instance->UnevenSpanSupport = 0;
6156
6157 if (instance->ctrl_context) {
6158 INIT_WORK(&instance->work_init, megasas_fusion_ocr_wq);
6159 INIT_WORK(&instance->crash_init, megasas_fusion_crash_dump_wq);
6160 } else
6161 INIT_WORK(&instance->work_init, process_fw_state_change_wq);
6162
6163 /*
6164 * Initialize MFI Firmware
6165 */
6166 if (megasas_init_fw(instance))
6167 goto fail_init_mfi;
6168
6169 if (instance->requestorId) {
6170 if (instance->PlasmaFW111) {
6171 instance->vf_affiliation_111 =
6172 pci_alloc_consistent(pdev, sizeof(struct MR_LD_VF_AFFILIATION_111),
6173 &instance->vf_affiliation_111_h);
6174 if (!instance->vf_affiliation_111)
6175 dev_warn(&pdev->dev, "Can't allocate "
6176 "memory for VF affiliation buffer\n");
6177 } else {
6178 instance->vf_affiliation =
6179 pci_alloc_consistent(pdev,
6180 (MAX_LOGICAL_DRIVES + 1) *
6181 sizeof(struct MR_LD_VF_AFFILIATION),
6182 &instance->vf_affiliation_h);
6183 if (!instance->vf_affiliation)
6184 dev_warn(&pdev->dev, "Can't allocate "
6185 "memory for VF affiliation buffer\n");
6186 }
6187 }
6188
6189 /*
6190 * Store instance in PCI softstate
6191 */
6192 pci_set_drvdata(pdev, instance);
6193
6194 /*
6195 * Add this controller to megasas_mgmt_info structure so that it
6196 * can be exported to management applications
6197 */
6198 megasas_mgmt_info.count++;
6199 megasas_mgmt_info.instance[megasas_mgmt_info.max_index] = instance;
6200 megasas_mgmt_info.max_index++;
6201
6202 /*
6203 * Register with SCSI mid-layer
6204 */
6205 if (megasas_io_attach(instance))
6206 goto fail_io_attach;
6207
6208 instance->unload = 0;
6209 /*
6210 * Trigger SCSI to scan our drives
6211 */
6212 scsi_scan_host(host);
6213
6214 /*
6215 * Initiate AEN (Asynchronous Event Notification)
6216 */
6217 if (megasas_start_aen(instance)) {
6218 dev_printk(KERN_DEBUG, &pdev->dev, "start aen failed\n");
6219 goto fail_start_aen;
6220 }
6221
6222 /* Get current SR-IOV LD/VF affiliation */
6223 if (instance->requestorId)
6224 megasas_get_ld_vf_affiliation(instance, 1);
6225
6226 return 0;
6227
6228 fail_start_aen:
6229 fail_io_attach:
6230 megasas_mgmt_info.count--;
6231 megasas_mgmt_info.instance[megasas_mgmt_info.max_index] = NULL;
6232 megasas_mgmt_info.max_index--;
6233
6234 instance->instancet->disable_intr(instance);
6235 megasas_destroy_irqs(instance);
6236
6237 if (instance->ctrl_context)
6238 megasas_release_fusion(instance);
6239 else
6240 megasas_release_mfi(instance);
6241 if (instance->msix_vectors)
6242 pci_free_irq_vectors(instance->pdev);
6243 fail_init_mfi:
6244 fail_alloc_dma_buf:
6245 if (instance->evt_detail)
6246 pci_free_consistent(pdev, sizeof(struct megasas_evt_detail),
6247 instance->evt_detail,
6248 instance->evt_detail_h);
6249
6250 if (instance->pd_info)
6251 pci_free_consistent(pdev, sizeof(struct MR_PD_INFO),
6252 instance->pd_info,
6253 instance->pd_info_h);
6254 if (instance->tgt_prop)
6255 pci_free_consistent(pdev, sizeof(struct MR_TARGET_PROPERTIES),
6256 instance->tgt_prop,
6257 instance->tgt_prop_h);
6258 if (instance->producer)
6259 pci_free_consistent(pdev, sizeof(u32), instance->producer,
6260 instance->producer_h);
6261 if (instance->consumer)
6262 pci_free_consistent(pdev, sizeof(u32), instance->consumer,
6263 instance->consumer_h);
6264 scsi_host_put(host);
6265
6266 fail_alloc_instance:
6267 fail_set_dma_mask:
6268 pci_disable_device(pdev);
6269
6270 return -ENODEV;
6271 }
6272
6273 /**
6274 * megasas_flush_cache - Requests FW to flush all its caches
6275 * @instance: Adapter soft state
6276 */
6277 static void megasas_flush_cache(struct megasas_instance *instance)
6278 {
6279 struct megasas_cmd *cmd;
6280 struct megasas_dcmd_frame *dcmd;
6281
6282 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR)
6283 return;
6284
6285 cmd = megasas_get_cmd(instance);
6286
6287 if (!cmd)
6288 return;
6289
6290 dcmd = &cmd->frame->dcmd;
6291
6292 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
6293
6294 dcmd->cmd = MFI_CMD_DCMD;
6295 dcmd->cmd_status = 0x0;
6296 dcmd->sge_count = 0;
6297 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_NONE);
6298 dcmd->timeout = 0;
6299 dcmd->pad_0 = 0;
6300 dcmd->data_xfer_len = 0;
6301 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_CACHE_FLUSH);
6302 dcmd->mbox.b[0] = MR_FLUSH_CTRL_CACHE | MR_FLUSH_DISK_CACHE;
6303
6304 if (megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS)
6305 != DCMD_SUCCESS) {
6306 dev_err(&instance->pdev->dev,
6307 "return from %s %d\n", __func__, __LINE__);
6308 return;
6309 }
6310
6311 megasas_return_cmd(instance, cmd);
6312 }
6313
6314 /**
6315 * megasas_shutdown_controller - Instructs FW to shutdown the controller
6316 * @instance: Adapter soft state
6317 * @opcode: Shutdown/Hibernate
6318 */
6319 static void megasas_shutdown_controller(struct megasas_instance *instance,
6320 u32 opcode)
6321 {
6322 struct megasas_cmd *cmd;
6323 struct megasas_dcmd_frame *dcmd;
6324
6325 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR)
6326 return;
6327
6328 cmd = megasas_get_cmd(instance);
6329
6330 if (!cmd)
6331 return;
6332
6333 if (instance->aen_cmd)
6334 megasas_issue_blocked_abort_cmd(instance,
6335 instance->aen_cmd, MFI_IO_TIMEOUT_SECS);
6336 if (instance->map_update_cmd)
6337 megasas_issue_blocked_abort_cmd(instance,
6338 instance->map_update_cmd, MFI_IO_TIMEOUT_SECS);
6339 if (instance->jbod_seq_cmd)
6340 megasas_issue_blocked_abort_cmd(instance,
6341 instance->jbod_seq_cmd, MFI_IO_TIMEOUT_SECS);
6342
6343 dcmd = &cmd->frame->dcmd;
6344
6345 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
6346
6347 dcmd->cmd = MFI_CMD_DCMD;
6348 dcmd->cmd_status = 0x0;
6349 dcmd->sge_count = 0;
6350 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_NONE);
6351 dcmd->timeout = 0;
6352 dcmd->pad_0 = 0;
6353 dcmd->data_xfer_len = 0;
6354 dcmd->opcode = cpu_to_le32(opcode);
6355
6356 if (megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS)
6357 != DCMD_SUCCESS) {
6358 dev_err(&instance->pdev->dev,
6359 "return from %s %d\n", __func__, __LINE__);
6360 return;
6361 }
6362
6363 megasas_return_cmd(instance, cmd);
6364 }
6365
6366 #ifdef CONFIG_PM
6367 /**
6368 * megasas_suspend - driver suspend entry point
6369 * @pdev: PCI device structure
6370 * @state: PCI power state to suspend routine
6371 */
6372 static int
6373 megasas_suspend(struct pci_dev *pdev, pm_message_t state)
6374 {
6375 struct Scsi_Host *host;
6376 struct megasas_instance *instance;
6377
6378 instance = pci_get_drvdata(pdev);
6379 host = instance->host;
6380 instance->unload = 1;
6381
6382 /* Shutdown SR-IOV heartbeat timer */
6383 if (instance->requestorId && !instance->skip_heartbeat_timer_del)
6384 del_timer_sync(&instance->sriov_heartbeat_timer);
6385
6386 megasas_flush_cache(instance);
6387 megasas_shutdown_controller(instance, MR_DCMD_HIBERNATE_SHUTDOWN);
6388
6389 /* cancel the delayed work if this work still in queue */
6390 if (instance->ev != NULL) {
6391 struct megasas_aen_event *ev = instance->ev;
6392 cancel_delayed_work_sync(&ev->hotplug_work);
6393 instance->ev = NULL;
6394 }
6395
6396 tasklet_kill(&instance->isr_tasklet);
6397
6398 pci_set_drvdata(instance->pdev, instance);
6399 instance->instancet->disable_intr(instance);
6400
6401 megasas_destroy_irqs(instance);
6402
6403 if (instance->msix_vectors)
6404 pci_free_irq_vectors(instance->pdev);
6405
6406 pci_save_state(pdev);
6407 pci_disable_device(pdev);
6408
6409 pci_set_power_state(pdev, pci_choose_state(pdev, state));
6410
6411 return 0;
6412 }
6413
6414 /**
6415 * megasas_resume- driver resume entry point
6416 * @pdev: PCI device structure
6417 */
6418 static int
6419 megasas_resume(struct pci_dev *pdev)
6420 {
6421 int rval;
6422 struct Scsi_Host *host;
6423 struct megasas_instance *instance;
6424 int irq_flags = PCI_IRQ_LEGACY;
6425
6426 instance = pci_get_drvdata(pdev);
6427 host = instance->host;
6428 pci_set_power_state(pdev, PCI_D0);
6429 pci_enable_wake(pdev, PCI_D0, 0);
6430 pci_restore_state(pdev);
6431
6432 /*
6433 * PCI prepping: enable device set bus mastering and dma mask
6434 */
6435 rval = pci_enable_device_mem(pdev);
6436
6437 if (rval) {
6438 dev_err(&pdev->dev, "Enable device failed\n");
6439 return rval;
6440 }
6441
6442 pci_set_master(pdev);
6443
6444 if (megasas_set_dma_mask(pdev))
6445 goto fail_set_dma_mask;
6446
6447 /*
6448 * Initialize MFI Firmware
6449 */
6450
6451 atomic_set(&instance->fw_outstanding, 0);
6452
6453 /*
6454 * We expect the FW state to be READY
6455 */
6456 if (megasas_transition_to_ready(instance, 0))
6457 goto fail_ready_state;
6458
6459 /* Now re-enable MSI-X */
6460 if (instance->msix_vectors) {
6461 irq_flags = PCI_IRQ_MSIX;
6462 if (smp_affinity_enable)
6463 irq_flags |= PCI_IRQ_AFFINITY;
6464 }
6465 rval = pci_alloc_irq_vectors(instance->pdev, 1,
6466 instance->msix_vectors ?
6467 instance->msix_vectors : 1, irq_flags);
6468 if (rval < 0)
6469 goto fail_reenable_msix;
6470
6471 if (instance->ctrl_context) {
6472 megasas_reset_reply_desc(instance);
6473 if (megasas_ioc_init_fusion(instance)) {
6474 megasas_free_cmds(instance);
6475 megasas_free_cmds_fusion(instance);
6476 goto fail_init_mfi;
6477 }
6478 if (!megasas_get_map_info(instance))
6479 megasas_sync_map_info(instance);
6480 } else {
6481 *instance->producer = 0;
6482 *instance->consumer = 0;
6483 if (megasas_issue_init_mfi(instance))
6484 goto fail_init_mfi;
6485 }
6486
6487 tasklet_init(&instance->isr_tasklet, instance->instancet->tasklet,
6488 (unsigned long)instance);
6489
6490 if (instance->msix_vectors ?
6491 megasas_setup_irqs_msix(instance, 0) :
6492 megasas_setup_irqs_ioapic(instance))
6493 goto fail_init_mfi;
6494
6495 /* Re-launch SR-IOV heartbeat timer */
6496 if (instance->requestorId) {
6497 if (!megasas_sriov_start_heartbeat(instance, 0))
6498 megasas_start_timer(instance,
6499 &instance->sriov_heartbeat_timer,
6500 megasas_sriov_heartbeat_handler,
6501 MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF);
6502 else {
6503 instance->skip_heartbeat_timer_del = 1;
6504 goto fail_init_mfi;
6505 }
6506 }
6507
6508 instance->instancet->enable_intr(instance);
6509 megasas_setup_jbod_map(instance);
6510 instance->unload = 0;
6511
6512 /*
6513 * Initiate AEN (Asynchronous Event Notification)
6514 */
6515 if (megasas_start_aen(instance))
6516 dev_err(&instance->pdev->dev, "Start AEN failed\n");
6517
6518 return 0;
6519
6520 fail_init_mfi:
6521 if (instance->evt_detail)
6522 pci_free_consistent(pdev, sizeof(struct megasas_evt_detail),
6523 instance->evt_detail,
6524 instance->evt_detail_h);
6525
6526 if (instance->pd_info)
6527 pci_free_consistent(pdev, sizeof(struct MR_PD_INFO),
6528 instance->pd_info,
6529 instance->pd_info_h);
6530 if (instance->tgt_prop)
6531 pci_free_consistent(pdev, sizeof(struct MR_TARGET_PROPERTIES),
6532 instance->tgt_prop,
6533 instance->tgt_prop_h);
6534 if (instance->producer)
6535 pci_free_consistent(pdev, sizeof(u32), instance->producer,
6536 instance->producer_h);
6537 if (instance->consumer)
6538 pci_free_consistent(pdev, sizeof(u32), instance->consumer,
6539 instance->consumer_h);
6540 scsi_host_put(host);
6541
6542 fail_set_dma_mask:
6543 fail_ready_state:
6544 fail_reenable_msix:
6545
6546 pci_disable_device(pdev);
6547
6548 return -ENODEV;
6549 }
6550 #else
6551 #define megasas_suspend NULL
6552 #define megasas_resume NULL
6553 #endif
6554
6555 static inline int
6556 megasas_wait_for_adapter_operational(struct megasas_instance *instance)
6557 {
6558 int wait_time = MEGASAS_RESET_WAIT_TIME * 2;
6559 int i;
6560
6561 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR)
6562 return 1;
6563
6564 for (i = 0; i < wait_time; i++) {
6565 if (atomic_read(&instance->adprecovery) == MEGASAS_HBA_OPERATIONAL)
6566 break;
6567
6568 if (!(i % MEGASAS_RESET_NOTICE_INTERVAL))
6569 dev_notice(&instance->pdev->dev, "waiting for controller reset to finish\n");
6570
6571 msleep(1000);
6572 }
6573
6574 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) {
6575 dev_info(&instance->pdev->dev, "%s timed out while waiting for HBA to recover.\n",
6576 __func__);
6577 return 1;
6578 }
6579
6580 return 0;
6581 }
6582
6583 /**
6584 * megasas_detach_one - PCI hot"un"plug entry point
6585 * @pdev: PCI device structure
6586 */
6587 static void megasas_detach_one(struct pci_dev *pdev)
6588 {
6589 int i;
6590 struct Scsi_Host *host;
6591 struct megasas_instance *instance;
6592 struct fusion_context *fusion;
6593 u32 pd_seq_map_sz;
6594
6595 instance = pci_get_drvdata(pdev);
6596 instance->unload = 1;
6597 host = instance->host;
6598 fusion = instance->ctrl_context;
6599
6600 /* Shutdown SR-IOV heartbeat timer */
6601 if (instance->requestorId && !instance->skip_heartbeat_timer_del)
6602 del_timer_sync(&instance->sriov_heartbeat_timer);
6603
6604 if (instance->fw_crash_state != UNAVAILABLE)
6605 megasas_free_host_crash_buffer(instance);
6606 scsi_remove_host(instance->host);
6607
6608 if (megasas_wait_for_adapter_operational(instance))
6609 goto skip_firing_dcmds;
6610
6611 megasas_flush_cache(instance);
6612 megasas_shutdown_controller(instance, MR_DCMD_CTRL_SHUTDOWN);
6613
6614 skip_firing_dcmds:
6615 /* cancel the delayed work if this work still in queue*/
6616 if (instance->ev != NULL) {
6617 struct megasas_aen_event *ev = instance->ev;
6618 cancel_delayed_work_sync(&ev->hotplug_work);
6619 instance->ev = NULL;
6620 }
6621
6622 /* cancel all wait events */
6623 wake_up_all(&instance->int_cmd_wait_q);
6624
6625 tasklet_kill(&instance->isr_tasklet);
6626
6627 /*
6628 * Take the instance off the instance array. Note that we will not
6629 * decrement the max_index. We let this array be sparse array
6630 */
6631 for (i = 0; i < megasas_mgmt_info.max_index; i++) {
6632 if (megasas_mgmt_info.instance[i] == instance) {
6633 megasas_mgmt_info.count--;
6634 megasas_mgmt_info.instance[i] = NULL;
6635
6636 break;
6637 }
6638 }
6639
6640 instance->instancet->disable_intr(instance);
6641
6642 megasas_destroy_irqs(instance);
6643
6644 if (instance->msix_vectors)
6645 pci_free_irq_vectors(instance->pdev);
6646
6647 if (instance->is_ventura) {
6648 for (i = 0; i < MAX_LOGICAL_DRIVES_EXT; ++i)
6649 kfree(fusion->stream_detect_by_ld[i]);
6650 kfree(fusion->stream_detect_by_ld);
6651 fusion->stream_detect_by_ld = NULL;
6652 }
6653
6654
6655 if (instance->ctrl_context) {
6656 megasas_release_fusion(instance);
6657 pd_seq_map_sz = sizeof(struct MR_PD_CFG_SEQ_NUM_SYNC) +
6658 (sizeof(struct MR_PD_CFG_SEQ) *
6659 (MAX_PHYSICAL_DEVICES - 1));
6660 for (i = 0; i < 2 ; i++) {
6661 if (fusion->ld_map[i])
6662 dma_free_coherent(&instance->pdev->dev,
6663 fusion->max_map_sz,
6664 fusion->ld_map[i],
6665 fusion->ld_map_phys[i]);
6666 if (fusion->ld_drv_map[i])
6667 free_pages((ulong)fusion->ld_drv_map[i],
6668 fusion->drv_map_pages);
6669 if (fusion->pd_seq_sync[i])
6670 dma_free_coherent(&instance->pdev->dev,
6671 pd_seq_map_sz,
6672 fusion->pd_seq_sync[i],
6673 fusion->pd_seq_phys[i]);
6674 }
6675 megasas_free_fusion_context(instance);
6676 } else {
6677 megasas_release_mfi(instance);
6678 pci_free_consistent(pdev, sizeof(u32),
6679 instance->producer,
6680 instance->producer_h);
6681 pci_free_consistent(pdev, sizeof(u32),
6682 instance->consumer,
6683 instance->consumer_h);
6684 }
6685
6686 kfree(instance->ctrl_info);
6687
6688 if (instance->evt_detail)
6689 pci_free_consistent(pdev, sizeof(struct megasas_evt_detail),
6690 instance->evt_detail, instance->evt_detail_h);
6691 if (instance->pd_info)
6692 pci_free_consistent(pdev, sizeof(struct MR_PD_INFO),
6693 instance->pd_info,
6694 instance->pd_info_h);
6695 if (instance->tgt_prop)
6696 pci_free_consistent(pdev, sizeof(struct MR_TARGET_PROPERTIES),
6697 instance->tgt_prop,
6698 instance->tgt_prop_h);
6699 if (instance->vf_affiliation)
6700 pci_free_consistent(pdev, (MAX_LOGICAL_DRIVES + 1) *
6701 sizeof(struct MR_LD_VF_AFFILIATION),
6702 instance->vf_affiliation,
6703 instance->vf_affiliation_h);
6704
6705 if (instance->vf_affiliation_111)
6706 pci_free_consistent(pdev,
6707 sizeof(struct MR_LD_VF_AFFILIATION_111),
6708 instance->vf_affiliation_111,
6709 instance->vf_affiliation_111_h);
6710
6711 if (instance->hb_host_mem)
6712 pci_free_consistent(pdev, sizeof(struct MR_CTRL_HB_HOST_MEM),
6713 instance->hb_host_mem,
6714 instance->hb_host_mem_h);
6715
6716 if (instance->crash_dump_buf)
6717 pci_free_consistent(pdev, CRASH_DMA_BUF_SIZE,
6718 instance->crash_dump_buf, instance->crash_dump_h);
6719
6720 if (instance->system_info_buf)
6721 pci_free_consistent(pdev, sizeof(struct MR_DRV_SYSTEM_INFO),
6722 instance->system_info_buf, instance->system_info_h);
6723
6724 scsi_host_put(host);
6725
6726 pci_disable_device(pdev);
6727 }
6728
6729 /**
6730 * megasas_shutdown - Shutdown entry point
6731 * @device: Generic device structure
6732 */
6733 static void megasas_shutdown(struct pci_dev *pdev)
6734 {
6735 struct megasas_instance *instance = pci_get_drvdata(pdev);
6736
6737 instance->unload = 1;
6738
6739 if (megasas_wait_for_adapter_operational(instance))
6740 goto skip_firing_dcmds;
6741
6742 megasas_flush_cache(instance);
6743 megasas_shutdown_controller(instance, MR_DCMD_CTRL_SHUTDOWN);
6744
6745 skip_firing_dcmds:
6746 instance->instancet->disable_intr(instance);
6747 megasas_destroy_irqs(instance);
6748
6749 if (instance->msix_vectors)
6750 pci_free_irq_vectors(instance->pdev);
6751 }
6752
6753 /**
6754 * megasas_mgmt_open - char node "open" entry point
6755 */
6756 static int megasas_mgmt_open(struct inode *inode, struct file *filep)
6757 {
6758 /*
6759 * Allow only those users with admin rights
6760 */
6761 if (!capable(CAP_SYS_ADMIN))
6762 return -EACCES;
6763
6764 return 0;
6765 }
6766
6767 /**
6768 * megasas_mgmt_fasync - Async notifier registration from applications
6769 *
6770 * This function adds the calling process to a driver global queue. When an
6771 * event occurs, SIGIO will be sent to all processes in this queue.
6772 */
6773 static int megasas_mgmt_fasync(int fd, struct file *filep, int mode)
6774 {
6775 int rc;
6776
6777 mutex_lock(&megasas_async_queue_mutex);
6778
6779 rc = fasync_helper(fd, filep, mode, &megasas_async_queue);
6780
6781 mutex_unlock(&megasas_async_queue_mutex);
6782
6783 if (rc >= 0) {
6784 /* For sanity check when we get ioctl */
6785 filep->private_data = filep;
6786 return 0;
6787 }
6788
6789 printk(KERN_DEBUG "megasas: fasync_helper failed [%d]\n", rc);
6790
6791 return rc;
6792 }
6793
6794 /**
6795 * megasas_mgmt_poll - char node "poll" entry point
6796 * */
6797 static unsigned int megasas_mgmt_poll(struct file *file, poll_table *wait)
6798 {
6799 unsigned int mask;
6800 unsigned long flags;
6801
6802 poll_wait(file, &megasas_poll_wait, wait);
6803 spin_lock_irqsave(&poll_aen_lock, flags);
6804 if (megasas_poll_wait_aen)
6805 mask = (POLLIN | POLLRDNORM);
6806 else
6807 mask = 0;
6808 megasas_poll_wait_aen = 0;
6809 spin_unlock_irqrestore(&poll_aen_lock, flags);
6810 return mask;
6811 }
6812
6813 /*
6814 * megasas_set_crash_dump_params_ioctl:
6815 * Send CRASH_DUMP_MODE DCMD to all controllers
6816 * @cmd: MFI command frame
6817 */
6818
6819 static int megasas_set_crash_dump_params_ioctl(struct megasas_cmd *cmd)
6820 {
6821 struct megasas_instance *local_instance;
6822 int i, error = 0;
6823 int crash_support;
6824
6825 crash_support = cmd->frame->dcmd.mbox.w[0];
6826
6827 for (i = 0; i < megasas_mgmt_info.max_index; i++) {
6828 local_instance = megasas_mgmt_info.instance[i];
6829 if (local_instance && local_instance->crash_dump_drv_support) {
6830 if ((atomic_read(&local_instance->adprecovery) ==
6831 MEGASAS_HBA_OPERATIONAL) &&
6832 !megasas_set_crash_dump_params(local_instance,
6833 crash_support)) {
6834 local_instance->crash_dump_app_support =
6835 crash_support;
6836 dev_info(&local_instance->pdev->dev,
6837 "Application firmware crash "
6838 "dump mode set success\n");
6839 error = 0;
6840 } else {
6841 dev_info(&local_instance->pdev->dev,
6842 "Application firmware crash "
6843 "dump mode set failed\n");
6844 error = -1;
6845 }
6846 }
6847 }
6848 return error;
6849 }
6850
6851 /**
6852 * megasas_mgmt_fw_ioctl - Issues management ioctls to FW
6853 * @instance: Adapter soft state
6854 * @argp: User's ioctl packet
6855 */
6856 static int
6857 megasas_mgmt_fw_ioctl(struct megasas_instance *instance,
6858 struct megasas_iocpacket __user * user_ioc,
6859 struct megasas_iocpacket *ioc)
6860 {
6861 struct megasas_sge32 *kern_sge32;
6862 struct megasas_cmd *cmd;
6863 void *kbuff_arr[MAX_IOCTL_SGE];
6864 dma_addr_t buf_handle = 0;
6865 int error = 0, i;
6866 void *sense = NULL;
6867 dma_addr_t sense_handle;
6868 unsigned long *sense_ptr;
6869
6870 memset(kbuff_arr, 0, sizeof(kbuff_arr));
6871
6872 if (ioc->sge_count > MAX_IOCTL_SGE) {
6873 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SGE count [%d] > max limit [%d]\n",
6874 ioc->sge_count, MAX_IOCTL_SGE);
6875 return -EINVAL;
6876 }
6877
6878 cmd = megasas_get_cmd(instance);
6879 if (!cmd) {
6880 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to get a cmd packet\n");
6881 return -ENOMEM;
6882 }
6883
6884 /*
6885 * User's IOCTL packet has 2 frames (maximum). Copy those two
6886 * frames into our cmd's frames. cmd->frame's context will get
6887 * overwritten when we copy from user's frames. So set that value
6888 * alone separately
6889 */
6890 memcpy(cmd->frame, ioc->frame.raw, 2 * MEGAMFI_FRAME_SIZE);
6891 cmd->frame->hdr.context = cpu_to_le32(cmd->index);
6892 cmd->frame->hdr.pad_0 = 0;
6893 cmd->frame->hdr.flags &= cpu_to_le16(~(MFI_FRAME_IEEE |
6894 MFI_FRAME_SGL64 |
6895 MFI_FRAME_SENSE64));
6896
6897 if (cmd->frame->dcmd.opcode == MR_DCMD_CTRL_SHUTDOWN) {
6898 if (megasas_get_ctrl_info(instance) != DCMD_SUCCESS) {
6899 megasas_return_cmd(instance, cmd);
6900 return -1;
6901 }
6902 }
6903
6904 if (cmd->frame->dcmd.opcode == MR_DRIVER_SET_APP_CRASHDUMP_MODE) {
6905 error = megasas_set_crash_dump_params_ioctl(cmd);
6906 megasas_return_cmd(instance, cmd);
6907 return error;
6908 }
6909
6910 /*
6911 * The management interface between applications and the fw uses
6912 * MFI frames. E.g, RAID configuration changes, LD property changes
6913 * etc are accomplishes through different kinds of MFI frames. The
6914 * driver needs to care only about substituting user buffers with
6915 * kernel buffers in SGLs. The location of SGL is embedded in the
6916 * struct iocpacket itself.
6917 */
6918 kern_sge32 = (struct megasas_sge32 *)
6919 ((unsigned long)cmd->frame + ioc->sgl_off);
6920
6921 /*
6922 * For each user buffer, create a mirror buffer and copy in
6923 */
6924 for (i = 0; i < ioc->sge_count; i++) {
6925 if (!ioc->sgl[i].iov_len)
6926 continue;
6927
6928 kbuff_arr[i] = dma_alloc_coherent(&instance->pdev->dev,
6929 ioc->sgl[i].iov_len,
6930 &buf_handle, GFP_KERNEL);
6931 if (!kbuff_arr[i]) {
6932 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to alloc "
6933 "kernel SGL buffer for IOCTL\n");
6934 error = -ENOMEM;
6935 goto out;
6936 }
6937
6938 /*
6939 * We don't change the dma_coherent_mask, so
6940 * pci_alloc_consistent only returns 32bit addresses
6941 */
6942 kern_sge32[i].phys_addr = cpu_to_le32(buf_handle);
6943 kern_sge32[i].length = cpu_to_le32(ioc->sgl[i].iov_len);
6944
6945 /*
6946 * We created a kernel buffer corresponding to the
6947 * user buffer. Now copy in from the user buffer
6948 */
6949 if (copy_from_user(kbuff_arr[i], ioc->sgl[i].iov_base,
6950 (u32) (ioc->sgl[i].iov_len))) {
6951 error = -EFAULT;
6952 goto out;
6953 }
6954 }
6955
6956 if (ioc->sense_len) {
6957 sense = dma_alloc_coherent(&instance->pdev->dev, ioc->sense_len,
6958 &sense_handle, GFP_KERNEL);
6959 if (!sense) {
6960 error = -ENOMEM;
6961 goto out;
6962 }
6963
6964 sense_ptr =
6965 (unsigned long *) ((unsigned long)cmd->frame + ioc->sense_off);
6966 *sense_ptr = cpu_to_le32(sense_handle);
6967 }
6968
6969 /*
6970 * Set the sync_cmd flag so that the ISR knows not to complete this
6971 * cmd to the SCSI mid-layer
6972 */
6973 cmd->sync_cmd = 1;
6974 if (megasas_issue_blocked_cmd(instance, cmd, 0) == DCMD_NOT_FIRED) {
6975 cmd->sync_cmd = 0;
6976 dev_err(&instance->pdev->dev,
6977 "return -EBUSY from %s %d opcode 0x%x cmd->cmd_status_drv 0x%x\n",
6978 __func__, __LINE__, cmd->frame->dcmd.opcode,
6979 cmd->cmd_status_drv);
6980 return -EBUSY;
6981 }
6982
6983 cmd->sync_cmd = 0;
6984
6985 if (instance->unload == 1) {
6986 dev_info(&instance->pdev->dev, "Driver unload is in progress "
6987 "don't submit data to application\n");
6988 goto out;
6989 }
6990 /*
6991 * copy out the kernel buffers to user buffers
6992 */
6993 for (i = 0; i < ioc->sge_count; i++) {
6994 if (copy_to_user(ioc->sgl[i].iov_base, kbuff_arr[i],
6995 ioc->sgl[i].iov_len)) {
6996 error = -EFAULT;
6997 goto out;
6998 }
6999 }
7000
7001 /*
7002 * copy out the sense
7003 */
7004 if (ioc->sense_len) {
7005 /*
7006 * sense_ptr points to the location that has the user
7007 * sense buffer address
7008 */
7009 sense_ptr = (unsigned long *) ((unsigned long)ioc->frame.raw +
7010 ioc->sense_off);
7011
7012 if (copy_to_user((void __user *)((unsigned long)
7013 get_unaligned((unsigned long *)sense_ptr)),
7014 sense, ioc->sense_len)) {
7015 dev_err(&instance->pdev->dev, "Failed to copy out to user "
7016 "sense data\n");
7017 error = -EFAULT;
7018 goto out;
7019 }
7020 }
7021
7022 /*
7023 * copy the status codes returned by the fw
7024 */
7025 if (copy_to_user(&user_ioc->frame.hdr.cmd_status,
7026 &cmd->frame->hdr.cmd_status, sizeof(u8))) {
7027 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Error copying out cmd_status\n");
7028 error = -EFAULT;
7029 }
7030
7031 out:
7032 if (sense) {
7033 dma_free_coherent(&instance->pdev->dev, ioc->sense_len,
7034 sense, sense_handle);
7035 }
7036
7037 for (i = 0; i < ioc->sge_count; i++) {
7038 if (kbuff_arr[i]) {
7039 dma_free_coherent(&instance->pdev->dev,
7040 le32_to_cpu(kern_sge32[i].length),
7041 kbuff_arr[i],
7042 le32_to_cpu(kern_sge32[i].phys_addr));
7043 kbuff_arr[i] = NULL;
7044 }
7045 }
7046
7047 megasas_return_cmd(instance, cmd);
7048 return error;
7049 }
7050
7051 static int megasas_mgmt_ioctl_fw(struct file *file, unsigned long arg)
7052 {
7053 struct megasas_iocpacket __user *user_ioc =
7054 (struct megasas_iocpacket __user *)arg;
7055 struct megasas_iocpacket *ioc;
7056 struct megasas_instance *instance;
7057 int error;
7058 int i;
7059 unsigned long flags;
7060 u32 wait_time = MEGASAS_RESET_WAIT_TIME;
7061
7062 ioc = memdup_user(user_ioc, sizeof(*ioc));
7063 if (IS_ERR(ioc))
7064 return PTR_ERR(ioc);
7065
7066 instance = megasas_lookup_instance(ioc->host_no);
7067 if (!instance) {
7068 error = -ENODEV;
7069 goto out_kfree_ioc;
7070 }
7071
7072 /* Adjust ioctl wait time for VF mode */
7073 if (instance->requestorId)
7074 wait_time = MEGASAS_ROUTINE_WAIT_TIME_VF;
7075
7076 /* Block ioctls in VF mode */
7077 if (instance->requestorId && !allow_vf_ioctls) {
7078 error = -ENODEV;
7079 goto out_kfree_ioc;
7080 }
7081
7082 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
7083 dev_err(&instance->pdev->dev, "Controller in crit error\n");
7084 error = -ENODEV;
7085 goto out_kfree_ioc;
7086 }
7087
7088 if (instance->unload == 1) {
7089 error = -ENODEV;
7090 goto out_kfree_ioc;
7091 }
7092
7093 if (down_interruptible(&instance->ioctl_sem)) {
7094 error = -ERESTARTSYS;
7095 goto out_kfree_ioc;
7096 }
7097
7098 for (i = 0; i < wait_time; i++) {
7099
7100 spin_lock_irqsave(&instance->hba_lock, flags);
7101 if (atomic_read(&instance->adprecovery) == MEGASAS_HBA_OPERATIONAL) {
7102 spin_unlock_irqrestore(&instance->hba_lock, flags);
7103 break;
7104 }
7105 spin_unlock_irqrestore(&instance->hba_lock, flags);
7106
7107 if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) {
7108 dev_notice(&instance->pdev->dev, "waiting"
7109 "for controller reset to finish\n");
7110 }
7111
7112 msleep(1000);
7113 }
7114
7115 spin_lock_irqsave(&instance->hba_lock, flags);
7116 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) {
7117 spin_unlock_irqrestore(&instance->hba_lock, flags);
7118
7119 dev_err(&instance->pdev->dev, "timed out while waiting for HBA to recover\n");
7120 error = -ENODEV;
7121 goto out_up;
7122 }
7123 spin_unlock_irqrestore(&instance->hba_lock, flags);
7124
7125 error = megasas_mgmt_fw_ioctl(instance, user_ioc, ioc);
7126 out_up:
7127 up(&instance->ioctl_sem);
7128
7129 out_kfree_ioc:
7130 kfree(ioc);
7131 return error;
7132 }
7133
7134 static int megasas_mgmt_ioctl_aen(struct file *file, unsigned long arg)
7135 {
7136 struct megasas_instance *instance;
7137 struct megasas_aen aen;
7138 int error;
7139 int i;
7140 unsigned long flags;
7141 u32 wait_time = MEGASAS_RESET_WAIT_TIME;
7142
7143 if (file->private_data != file) {
7144 printk(KERN_DEBUG "megasas: fasync_helper was not "
7145 "called first\n");
7146 return -EINVAL;
7147 }
7148
7149 if (copy_from_user(&aen, (void __user *)arg, sizeof(aen)))
7150 return -EFAULT;
7151
7152 instance = megasas_lookup_instance(aen.host_no);
7153
7154 if (!instance)
7155 return -ENODEV;
7156
7157 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
7158 return -ENODEV;
7159 }
7160
7161 if (instance->unload == 1) {
7162 return -ENODEV;
7163 }
7164
7165 for (i = 0; i < wait_time; i++) {
7166
7167 spin_lock_irqsave(&instance->hba_lock, flags);
7168 if (atomic_read(&instance->adprecovery) == MEGASAS_HBA_OPERATIONAL) {
7169 spin_unlock_irqrestore(&instance->hba_lock,
7170 flags);
7171 break;
7172 }
7173
7174 spin_unlock_irqrestore(&instance->hba_lock, flags);
7175
7176 if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) {
7177 dev_notice(&instance->pdev->dev, "waiting for"
7178 "controller reset to finish\n");
7179 }
7180
7181 msleep(1000);
7182 }
7183
7184 spin_lock_irqsave(&instance->hba_lock, flags);
7185 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) {
7186 spin_unlock_irqrestore(&instance->hba_lock, flags);
7187 dev_err(&instance->pdev->dev, "timed out while waiting for HBA to recover\n");
7188 return -ENODEV;
7189 }
7190 spin_unlock_irqrestore(&instance->hba_lock, flags);
7191
7192 mutex_lock(&instance->reset_mutex);
7193 error = megasas_register_aen(instance, aen.seq_num,
7194 aen.class_locale_word);
7195 mutex_unlock(&instance->reset_mutex);
7196 return error;
7197 }
7198
7199 /**
7200 * megasas_mgmt_ioctl - char node ioctl entry point
7201 */
7202 static long
7203 megasas_mgmt_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
7204 {
7205 switch (cmd) {
7206 case MEGASAS_IOC_FIRMWARE:
7207 return megasas_mgmt_ioctl_fw(file, arg);
7208
7209 case MEGASAS_IOC_GET_AEN:
7210 return megasas_mgmt_ioctl_aen(file, arg);
7211 }
7212
7213 return -ENOTTY;
7214 }
7215
7216 #ifdef CONFIG_COMPAT
7217 static int megasas_mgmt_compat_ioctl_fw(struct file *file, unsigned long arg)
7218 {
7219 struct compat_megasas_iocpacket __user *cioc =
7220 (struct compat_megasas_iocpacket __user *)arg;
7221 struct megasas_iocpacket __user *ioc =
7222 compat_alloc_user_space(sizeof(struct megasas_iocpacket));
7223 int i;
7224 int error = 0;
7225 compat_uptr_t ptr;
7226 u32 local_sense_off;
7227 u32 local_sense_len;
7228 u32 user_sense_off;
7229
7230 if (clear_user(ioc, sizeof(*ioc)))
7231 return -EFAULT;
7232
7233 if (copy_in_user(&ioc->host_no, &cioc->host_no, sizeof(u16)) ||
7234 copy_in_user(&ioc->sgl_off, &cioc->sgl_off, sizeof(u32)) ||
7235 copy_in_user(&ioc->sense_off, &cioc->sense_off, sizeof(u32)) ||
7236 copy_in_user(&ioc->sense_len, &cioc->sense_len, sizeof(u32)) ||
7237 copy_in_user(ioc->frame.raw, cioc->frame.raw, 128) ||
7238 copy_in_user(&ioc->sge_count, &cioc->sge_count, sizeof(u32)))
7239 return -EFAULT;
7240
7241 /*
7242 * The sense_ptr is used in megasas_mgmt_fw_ioctl only when
7243 * sense_len is not null, so prepare the 64bit value under
7244 * the same condition.
7245 */
7246 if (get_user(local_sense_off, &ioc->sense_off) ||
7247 get_user(local_sense_len, &ioc->sense_len) ||
7248 get_user(user_sense_off, &cioc->sense_off))
7249 return -EFAULT;
7250
7251 if (local_sense_len) {
7252 void __user **sense_ioc_ptr =
7253 (void __user **)((u8 *)((unsigned long)&ioc->frame.raw) + local_sense_off);
7254 compat_uptr_t *sense_cioc_ptr =
7255 (compat_uptr_t *)(((unsigned long)&cioc->frame.raw) + user_sense_off);
7256 if (get_user(ptr, sense_cioc_ptr) ||
7257 put_user(compat_ptr(ptr), sense_ioc_ptr))
7258 return -EFAULT;
7259 }
7260
7261 for (i = 0; i < MAX_IOCTL_SGE; i++) {
7262 if (get_user(ptr, &cioc->sgl[i].iov_base) ||
7263 put_user(compat_ptr(ptr), &ioc->sgl[i].iov_base) ||
7264 copy_in_user(&ioc->sgl[i].iov_len,
7265 &cioc->sgl[i].iov_len, sizeof(compat_size_t)))
7266 return -EFAULT;
7267 }
7268
7269 error = megasas_mgmt_ioctl_fw(file, (unsigned long)ioc);
7270
7271 if (copy_in_user(&cioc->frame.hdr.cmd_status,
7272 &ioc->frame.hdr.cmd_status, sizeof(u8))) {
7273 printk(KERN_DEBUG "megasas: error copy_in_user cmd_status\n");
7274 return -EFAULT;
7275 }
7276 return error;
7277 }
7278
7279 static long
7280 megasas_mgmt_compat_ioctl(struct file *file, unsigned int cmd,
7281 unsigned long arg)
7282 {
7283 switch (cmd) {
7284 case MEGASAS_IOC_FIRMWARE32:
7285 return megasas_mgmt_compat_ioctl_fw(file, arg);
7286 case MEGASAS_IOC_GET_AEN:
7287 return megasas_mgmt_ioctl_aen(file, arg);
7288 }
7289
7290 return -ENOTTY;
7291 }
7292 #endif
7293
7294 /*
7295 * File operations structure for management interface
7296 */
7297 static const struct file_operations megasas_mgmt_fops = {
7298 .owner = THIS_MODULE,
7299 .open = megasas_mgmt_open,
7300 .fasync = megasas_mgmt_fasync,
7301 .unlocked_ioctl = megasas_mgmt_ioctl,
7302 .poll = megasas_mgmt_poll,
7303 #ifdef CONFIG_COMPAT
7304 .compat_ioctl = megasas_mgmt_compat_ioctl,
7305 #endif
7306 .llseek = noop_llseek,
7307 };
7308
7309 /*
7310 * PCI hotplug support registration structure
7311 */
7312 static struct pci_driver megasas_pci_driver = {
7313
7314 .name = "megaraid_sas",
7315 .id_table = megasas_pci_table,
7316 .probe = megasas_probe_one,
7317 .remove = megasas_detach_one,
7318 .suspend = megasas_suspend,
7319 .resume = megasas_resume,
7320 .shutdown = megasas_shutdown,
7321 };
7322
7323 /*
7324 * Sysfs driver attributes
7325 */
7326 static ssize_t megasas_sysfs_show_version(struct device_driver *dd, char *buf)
7327 {
7328 return snprintf(buf, strlen(MEGASAS_VERSION) + 2, "%s\n",
7329 MEGASAS_VERSION);
7330 }
7331
7332 static DRIVER_ATTR(version, S_IRUGO, megasas_sysfs_show_version, NULL);
7333
7334 static ssize_t
7335 megasas_sysfs_show_release_date(struct device_driver *dd, char *buf)
7336 {
7337 return snprintf(buf, strlen(MEGASAS_RELDATE) + 2, "%s\n",
7338 MEGASAS_RELDATE);
7339 }
7340
7341 static DRIVER_ATTR(release_date, S_IRUGO, megasas_sysfs_show_release_date, NULL);
7342
7343 static ssize_t
7344 megasas_sysfs_show_support_poll_for_event(struct device_driver *dd, char *buf)
7345 {
7346 return sprintf(buf, "%u\n", support_poll_for_event);
7347 }
7348
7349 static DRIVER_ATTR(support_poll_for_event, S_IRUGO,
7350 megasas_sysfs_show_support_poll_for_event, NULL);
7351
7352 static ssize_t
7353 megasas_sysfs_show_support_device_change(struct device_driver *dd, char *buf)
7354 {
7355 return sprintf(buf, "%u\n", support_device_change);
7356 }
7357
7358 static DRIVER_ATTR(support_device_change, S_IRUGO,
7359 megasas_sysfs_show_support_device_change, NULL);
7360
7361 static ssize_t
7362 megasas_sysfs_show_dbg_lvl(struct device_driver *dd, char *buf)
7363 {
7364 return sprintf(buf, "%u\n", megasas_dbg_lvl);
7365 }
7366
7367 static ssize_t
7368 megasas_sysfs_set_dbg_lvl(struct device_driver *dd, const char *buf, size_t count)
7369 {
7370 int retval = count;
7371
7372 if (sscanf(buf, "%u", &megasas_dbg_lvl) < 1) {
7373 printk(KERN_ERR "megasas: could not set dbg_lvl\n");
7374 retval = -EINVAL;
7375 }
7376 return retval;
7377 }
7378
7379 static DRIVER_ATTR(dbg_lvl, S_IRUGO|S_IWUSR, megasas_sysfs_show_dbg_lvl,
7380 megasas_sysfs_set_dbg_lvl);
7381
7382 static inline void megasas_remove_scsi_device(struct scsi_device *sdev)
7383 {
7384 sdev_printk(KERN_INFO, sdev, "SCSI device is removed\n");
7385 scsi_remove_device(sdev);
7386 scsi_device_put(sdev);
7387 }
7388
7389 static void
7390 megasas_aen_polling(struct work_struct *work)
7391 {
7392 struct megasas_aen_event *ev =
7393 container_of(work, struct megasas_aen_event, hotplug_work.work);
7394 struct megasas_instance *instance = ev->instance;
7395 union megasas_evt_class_locale class_locale;
7396 struct Scsi_Host *host;
7397 struct scsi_device *sdev1;
7398 u16 pd_index = 0;
7399 u16 ld_index = 0;
7400 int i, j, doscan = 0;
7401 u32 seq_num, wait_time = MEGASAS_RESET_WAIT_TIME;
7402 int error;
7403 u8 dcmd_ret = DCMD_SUCCESS;
7404
7405 if (!instance) {
7406 printk(KERN_ERR "invalid instance!\n");
7407 kfree(ev);
7408 return;
7409 }
7410
7411 /* Adjust event workqueue thread wait time for VF mode */
7412 if (instance->requestorId)
7413 wait_time = MEGASAS_ROUTINE_WAIT_TIME_VF;
7414
7415 /* Don't run the event workqueue thread if OCR is running */
7416 mutex_lock(&instance->reset_mutex);
7417
7418 instance->ev = NULL;
7419 host = instance->host;
7420 if (instance->evt_detail) {
7421 megasas_decode_evt(instance);
7422
7423 switch (le32_to_cpu(instance->evt_detail->code)) {
7424
7425 case MR_EVT_PD_INSERTED:
7426 case MR_EVT_PD_REMOVED:
7427 dcmd_ret = megasas_get_pd_list(instance);
7428 if (dcmd_ret == DCMD_SUCCESS)
7429 doscan = SCAN_PD_CHANNEL;
7430 break;
7431
7432 case MR_EVT_LD_OFFLINE:
7433 case MR_EVT_CFG_CLEARED:
7434 case MR_EVT_LD_DELETED:
7435 case MR_EVT_LD_CREATED:
7436 if (!instance->requestorId ||
7437 (instance->requestorId && megasas_get_ld_vf_affiliation(instance, 0)))
7438 dcmd_ret = megasas_ld_list_query(instance, MR_LD_QUERY_TYPE_EXPOSED_TO_HOST);
7439
7440 if (dcmd_ret == DCMD_SUCCESS)
7441 doscan = SCAN_VD_CHANNEL;
7442
7443 break;
7444
7445 case MR_EVT_CTRL_HOST_BUS_SCAN_REQUESTED:
7446 case MR_EVT_FOREIGN_CFG_IMPORTED:
7447 case MR_EVT_LD_STATE_CHANGE:
7448 dcmd_ret = megasas_get_pd_list(instance);
7449
7450 if (dcmd_ret != DCMD_SUCCESS)
7451 break;
7452
7453 if (!instance->requestorId ||
7454 (instance->requestorId && megasas_get_ld_vf_affiliation(instance, 0)))
7455 dcmd_ret = megasas_ld_list_query(instance, MR_LD_QUERY_TYPE_EXPOSED_TO_HOST);
7456
7457 if (dcmd_ret != DCMD_SUCCESS)
7458 break;
7459
7460 doscan = SCAN_VD_CHANNEL | SCAN_PD_CHANNEL;
7461 dev_info(&instance->pdev->dev, "scanning for scsi%d...\n",
7462 instance->host->host_no);
7463 break;
7464
7465 case MR_EVT_CTRL_PROP_CHANGED:
7466 dcmd_ret = megasas_get_ctrl_info(instance);
7467 break;
7468 default:
7469 doscan = 0;
7470 break;
7471 }
7472 } else {
7473 dev_err(&instance->pdev->dev, "invalid evt_detail!\n");
7474 mutex_unlock(&instance->reset_mutex);
7475 kfree(ev);
7476 return;
7477 }
7478
7479 mutex_unlock(&instance->reset_mutex);
7480
7481 if (doscan & SCAN_PD_CHANNEL) {
7482 for (i = 0; i < MEGASAS_MAX_PD_CHANNELS; i++) {
7483 for (j = 0; j < MEGASAS_MAX_DEV_PER_CHANNEL; j++) {
7484 pd_index = i*MEGASAS_MAX_DEV_PER_CHANNEL + j;
7485 sdev1 = scsi_device_lookup(host, i, j, 0);
7486 if (instance->pd_list[pd_index].driveState ==
7487 MR_PD_STATE_SYSTEM) {
7488 if (!sdev1)
7489 scsi_add_device(host, i, j, 0);
7490 else
7491 scsi_device_put(sdev1);
7492 } else {
7493 if (sdev1)
7494 megasas_remove_scsi_device(sdev1);
7495 }
7496 }
7497 }
7498 }
7499
7500 if (doscan & SCAN_VD_CHANNEL) {
7501 for (i = 0; i < MEGASAS_MAX_LD_CHANNELS; i++) {
7502 for (j = 0; j < MEGASAS_MAX_DEV_PER_CHANNEL; j++) {
7503 ld_index = (i * MEGASAS_MAX_DEV_PER_CHANNEL) + j;
7504 sdev1 = scsi_device_lookup(host, MEGASAS_MAX_PD_CHANNELS + i, j, 0);
7505 if (instance->ld_ids[ld_index] != 0xff) {
7506 if (!sdev1)
7507 scsi_add_device(host, MEGASAS_MAX_PD_CHANNELS + i, j, 0);
7508 else
7509 scsi_device_put(sdev1);
7510 } else {
7511 if (sdev1)
7512 megasas_remove_scsi_device(sdev1);
7513 }
7514 }
7515 }
7516 }
7517
7518 if (dcmd_ret == DCMD_SUCCESS)
7519 seq_num = le32_to_cpu(instance->evt_detail->seq_num) + 1;
7520 else
7521 seq_num = instance->last_seq_num;
7522
7523 /* Register AEN with FW for latest sequence number plus 1 */
7524 class_locale.members.reserved = 0;
7525 class_locale.members.locale = MR_EVT_LOCALE_ALL;
7526 class_locale.members.class = MR_EVT_CLASS_DEBUG;
7527
7528 if (instance->aen_cmd != NULL) {
7529 kfree(ev);
7530 return;
7531 }
7532
7533 mutex_lock(&instance->reset_mutex);
7534 error = megasas_register_aen(instance, seq_num,
7535 class_locale.word);
7536 if (error)
7537 dev_err(&instance->pdev->dev,
7538 "register aen failed error %x\n", error);
7539
7540 mutex_unlock(&instance->reset_mutex);
7541 kfree(ev);
7542 }
7543
7544 /**
7545 * megasas_init - Driver load entry point
7546 */
7547 static int __init megasas_init(void)
7548 {
7549 int rval;
7550
7551 /*
7552 * Booted in kdump kernel, minimize memory footprints by
7553 * disabling few features
7554 */
7555 if (reset_devices) {
7556 msix_vectors = 1;
7557 rdpq_enable = 0;
7558 dual_qdepth_disable = 1;
7559 }
7560
7561 /*
7562 * Announce driver version and other information
7563 */
7564 pr_info("megasas: %s\n", MEGASAS_VERSION);
7565
7566 spin_lock_init(&poll_aen_lock);
7567
7568 support_poll_for_event = 2;
7569 support_device_change = 1;
7570
7571 memset(&megasas_mgmt_info, 0, sizeof(megasas_mgmt_info));
7572
7573 /*
7574 * Register character device node
7575 */
7576 rval = register_chrdev(0, "megaraid_sas_ioctl", &megasas_mgmt_fops);
7577
7578 if (rval < 0) {
7579 printk(KERN_DEBUG "megasas: failed to open device node\n");
7580 return rval;
7581 }
7582
7583 megasas_mgmt_majorno = rval;
7584
7585 /*
7586 * Register ourselves as PCI hotplug module
7587 */
7588 rval = pci_register_driver(&megasas_pci_driver);
7589
7590 if (rval) {
7591 printk(KERN_DEBUG "megasas: PCI hotplug registration failed \n");
7592 goto err_pcidrv;
7593 }
7594
7595 rval = driver_create_file(&megasas_pci_driver.driver,
7596 &driver_attr_version);
7597 if (rval)
7598 goto err_dcf_attr_ver;
7599
7600 rval = driver_create_file(&megasas_pci_driver.driver,
7601 &driver_attr_release_date);
7602 if (rval)
7603 goto err_dcf_rel_date;
7604
7605 rval = driver_create_file(&megasas_pci_driver.driver,
7606 &driver_attr_support_poll_for_event);
7607 if (rval)
7608 goto err_dcf_support_poll_for_event;
7609
7610 rval = driver_create_file(&megasas_pci_driver.driver,
7611 &driver_attr_dbg_lvl);
7612 if (rval)
7613 goto err_dcf_dbg_lvl;
7614 rval = driver_create_file(&megasas_pci_driver.driver,
7615 &driver_attr_support_device_change);
7616 if (rval)
7617 goto err_dcf_support_device_change;
7618
7619 return rval;
7620
7621 err_dcf_support_device_change:
7622 driver_remove_file(&megasas_pci_driver.driver,
7623 &driver_attr_dbg_lvl);
7624 err_dcf_dbg_lvl:
7625 driver_remove_file(&megasas_pci_driver.driver,
7626 &driver_attr_support_poll_for_event);
7627 err_dcf_support_poll_for_event:
7628 driver_remove_file(&megasas_pci_driver.driver,
7629 &driver_attr_release_date);
7630 err_dcf_rel_date:
7631 driver_remove_file(&megasas_pci_driver.driver, &driver_attr_version);
7632 err_dcf_attr_ver:
7633 pci_unregister_driver(&megasas_pci_driver);
7634 err_pcidrv:
7635 unregister_chrdev(megasas_mgmt_majorno, "megaraid_sas_ioctl");
7636 return rval;
7637 }
7638
7639 /**
7640 * megasas_exit - Driver unload entry point
7641 */
7642 static void __exit megasas_exit(void)
7643 {
7644 driver_remove_file(&megasas_pci_driver.driver,
7645 &driver_attr_dbg_lvl);
7646 driver_remove_file(&megasas_pci_driver.driver,
7647 &driver_attr_support_poll_for_event);
7648 driver_remove_file(&megasas_pci_driver.driver,
7649 &driver_attr_support_device_change);
7650 driver_remove_file(&megasas_pci_driver.driver,
7651 &driver_attr_release_date);
7652 driver_remove_file(&megasas_pci_driver.driver, &driver_attr_version);
7653
7654 pci_unregister_driver(&megasas_pci_driver);
7655 unregister_chrdev(megasas_mgmt_majorno, "megaraid_sas_ioctl");
7656 }
7657
7658 module_init(megasas_init);
7659 module_exit(megasas_exit);
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