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scsi: megaraid_sas: fix a missing-check bug
[mirror_ubuntu-bionic-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 #include <linux/vmalloc.h>
53
54 #include <scsi/scsi.h>
55 #include <scsi/scsi_cmnd.h>
56 #include <scsi/scsi_device.h>
57 #include <scsi/scsi_host.h>
58 #include <scsi/scsi_tcq.h>
59 #include "megaraid_sas_fusion.h"
60 #include "megaraid_sas.h"
61
62 /*
63 * Number of sectors per IO command
64 * Will be set in megasas_init_mfi if user does not provide
65 */
66 static unsigned int max_sectors;
67 module_param_named(max_sectors, max_sectors, int, 0);
68 MODULE_PARM_DESC(max_sectors,
69 "Maximum number of sectors per IO command");
70
71 static int msix_disable;
72 module_param(msix_disable, int, S_IRUGO);
73 MODULE_PARM_DESC(msix_disable, "Disable MSI-X interrupt handling. Default: 0");
74
75 static unsigned int msix_vectors;
76 module_param(msix_vectors, int, S_IRUGO);
77 MODULE_PARM_DESC(msix_vectors, "MSI-X max vector count. Default: Set by FW");
78
79 static int allow_vf_ioctls;
80 module_param(allow_vf_ioctls, int, S_IRUGO);
81 MODULE_PARM_DESC(allow_vf_ioctls, "Allow ioctls in SR-IOV VF mode. Default: 0");
82
83 static unsigned int throttlequeuedepth = MEGASAS_THROTTLE_QUEUE_DEPTH;
84 module_param(throttlequeuedepth, int, S_IRUGO);
85 MODULE_PARM_DESC(throttlequeuedepth,
86 "Adapter queue depth when throttled due to I/O timeout. Default: 16");
87
88 unsigned int resetwaittime = MEGASAS_RESET_WAIT_TIME;
89 module_param(resetwaittime, int, S_IRUGO);
90 MODULE_PARM_DESC(resetwaittime, "Wait time in seconds after I/O timeout "
91 "before resetting adapter. Default: 180");
92
93 int smp_affinity_enable = 1;
94 module_param(smp_affinity_enable, int, S_IRUGO);
95 MODULE_PARM_DESC(smp_affinity_enable, "SMP affinity feature enable/disbale Default: enable(1)");
96
97 int rdpq_enable = 1;
98 module_param(rdpq_enable, int, S_IRUGO);
99 MODULE_PARM_DESC(rdpq_enable, " Allocate reply queue in chunks for large queue depth enable/disable Default: disable(0)");
100
101 unsigned int dual_qdepth_disable;
102 module_param(dual_qdepth_disable, int, S_IRUGO);
103 MODULE_PARM_DESC(dual_qdepth_disable, "Disable dual queue depth feature. Default: 0");
104
105 unsigned int scmd_timeout = MEGASAS_DEFAULT_CMD_TIMEOUT;
106 module_param(scmd_timeout, int, S_IRUGO);
107 MODULE_PARM_DESC(scmd_timeout, "scsi command timeout (10-90s), default 90s. See megasas_reset_timer.");
108
109 MODULE_LICENSE("GPL");
110 MODULE_VERSION(MEGASAS_VERSION);
111 MODULE_AUTHOR("megaraidlinux.pdl@avagotech.com");
112 MODULE_DESCRIPTION("Avago MegaRAID SAS Driver");
113
114 int megasas_transition_to_ready(struct megasas_instance *instance, int ocr);
115 static int megasas_get_pd_list(struct megasas_instance *instance);
116 static int megasas_ld_list_query(struct megasas_instance *instance,
117 u8 query_type);
118 static int megasas_issue_init_mfi(struct megasas_instance *instance);
119 static int megasas_register_aen(struct megasas_instance *instance,
120 u32 seq_num, u32 class_locale_word);
121 static void megasas_get_pd_info(struct megasas_instance *instance,
122 struct scsi_device *sdev);
123 static int megasas_get_target_prop(struct megasas_instance *instance,
124 struct scsi_device *sdev);
125 /*
126 * PCI ID table for all supported controllers
127 */
128 static struct pci_device_id megasas_pci_table[] = {
129
130 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1064R)},
131 /* xscale IOP */
132 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078R)},
133 /* ppc IOP */
134 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078DE)},
135 /* ppc IOP */
136 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078GEN2)},
137 /* gen2*/
138 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0079GEN2)},
139 /* gen2*/
140 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0073SKINNY)},
141 /* skinny*/
142 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0071SKINNY)},
143 /* skinny*/
144 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_VERDE_ZCR)},
145 /* xscale IOP, vega */
146 {PCI_DEVICE(PCI_VENDOR_ID_DELL, PCI_DEVICE_ID_DELL_PERC5)},
147 /* xscale IOP */
148 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FUSION)},
149 /* Fusion */
150 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_PLASMA)},
151 /* Plasma */
152 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_INVADER)},
153 /* Invader */
154 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FURY)},
155 /* Fury */
156 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_INTRUDER)},
157 /* Intruder */
158 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_INTRUDER_24)},
159 /* Intruder 24 port*/
160 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_CUTLASS_52)},
161 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_CUTLASS_53)},
162 /* VENTURA */
163 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_VENTURA)},
164 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_CRUSADER)},
165 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_HARPOON)},
166 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_TOMCAT)},
167 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_VENTURA_4PORT)},
168 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_CRUSADER_4PORT)},
169 {}
170 };
171
172 MODULE_DEVICE_TABLE(pci, megasas_pci_table);
173
174 static int megasas_mgmt_majorno;
175 struct megasas_mgmt_info megasas_mgmt_info;
176 static struct fasync_struct *megasas_async_queue;
177 static DEFINE_MUTEX(megasas_async_queue_mutex);
178
179 static int megasas_poll_wait_aen;
180 static DECLARE_WAIT_QUEUE_HEAD(megasas_poll_wait);
181 static u32 support_poll_for_event;
182 u32 megasas_dbg_lvl;
183 static u32 support_device_change;
184
185 /* define lock for aen poll */
186 spinlock_t poll_aen_lock;
187
188 void
189 megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd,
190 u8 alt_status);
191 static u32
192 megasas_read_fw_status_reg_gen2(struct megasas_register_set __iomem *regs);
193 static int
194 megasas_adp_reset_gen2(struct megasas_instance *instance,
195 struct megasas_register_set __iomem *reg_set);
196 static irqreturn_t megasas_isr(int irq, void *devp);
197 static u32
198 megasas_init_adapter_mfi(struct megasas_instance *instance);
199 u32
200 megasas_build_and_issue_cmd(struct megasas_instance *instance,
201 struct scsi_cmnd *scmd);
202 static void megasas_complete_cmd_dpc(unsigned long instance_addr);
203 int
204 wait_and_poll(struct megasas_instance *instance, struct megasas_cmd *cmd,
205 int seconds);
206 void megasas_fusion_ocr_wq(struct work_struct *work);
207 static int megasas_get_ld_vf_affiliation(struct megasas_instance *instance,
208 int initial);
209 static int
210 megasas_set_dma_mask(struct megasas_instance *instance);
211 static int
212 megasas_alloc_ctrl_mem(struct megasas_instance *instance);
213 static inline void
214 megasas_free_ctrl_mem(struct megasas_instance *instance);
215 static inline int
216 megasas_alloc_ctrl_dma_buffers(struct megasas_instance *instance);
217 static inline void
218 megasas_free_ctrl_dma_buffers(struct megasas_instance *instance);
219 static inline void
220 megasas_init_ctrl_params(struct megasas_instance *instance);
221
222 /**
223 * megasas_set_dma_settings - Populate DMA address, length and flags for DCMDs
224 * @instance: Adapter soft state
225 * @dcmd: DCMD frame inside MFI command
226 * @dma_addr: DMA address of buffer to be passed to FW
227 * @dma_len: Length of DMA buffer to be passed to FW
228 * @return: void
229 */
230 void megasas_set_dma_settings(struct megasas_instance *instance,
231 struct megasas_dcmd_frame *dcmd,
232 dma_addr_t dma_addr, u32 dma_len)
233 {
234 if (instance->consistent_mask_64bit) {
235 dcmd->sgl.sge64[0].phys_addr = cpu_to_le64(dma_addr);
236 dcmd->sgl.sge64[0].length = cpu_to_le32(dma_len);
237 dcmd->flags = cpu_to_le16(dcmd->flags | MFI_FRAME_SGL64);
238
239 } else {
240 dcmd->sgl.sge32[0].phys_addr =
241 cpu_to_le32(lower_32_bits(dma_addr));
242 dcmd->sgl.sge32[0].length = cpu_to_le32(dma_len);
243 dcmd->flags = cpu_to_le16(dcmd->flags);
244 }
245 }
246
247 void
248 megasas_issue_dcmd(struct megasas_instance *instance, struct megasas_cmd *cmd)
249 {
250 instance->instancet->fire_cmd(instance,
251 cmd->frame_phys_addr, 0, instance->reg_set);
252 return;
253 }
254
255 /**
256 * megasas_get_cmd - Get a command from the free pool
257 * @instance: Adapter soft state
258 *
259 * Returns a free command from the pool
260 */
261 struct megasas_cmd *megasas_get_cmd(struct megasas_instance
262 *instance)
263 {
264 unsigned long flags;
265 struct megasas_cmd *cmd = NULL;
266
267 spin_lock_irqsave(&instance->mfi_pool_lock, flags);
268
269 if (!list_empty(&instance->cmd_pool)) {
270 cmd = list_entry((&instance->cmd_pool)->next,
271 struct megasas_cmd, list);
272 list_del_init(&cmd->list);
273 } else {
274 dev_err(&instance->pdev->dev, "Command pool empty!\n");
275 }
276
277 spin_unlock_irqrestore(&instance->mfi_pool_lock, flags);
278 return cmd;
279 }
280
281 /**
282 * megasas_return_cmd - Return a cmd to free command pool
283 * @instance: Adapter soft state
284 * @cmd: Command packet to be returned to free command pool
285 */
286 void
287 megasas_return_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd)
288 {
289 unsigned long flags;
290 u32 blk_tags;
291 struct megasas_cmd_fusion *cmd_fusion;
292 struct fusion_context *fusion = instance->ctrl_context;
293
294 /* This flag is used only for fusion adapter.
295 * Wait for Interrupt for Polled mode DCMD
296 */
297 if (cmd->flags & DRV_DCMD_POLLED_MODE)
298 return;
299
300 spin_lock_irqsave(&instance->mfi_pool_lock, flags);
301
302 if (fusion) {
303 blk_tags = instance->max_scsi_cmds + cmd->index;
304 cmd_fusion = fusion->cmd_list[blk_tags];
305 megasas_return_cmd_fusion(instance, cmd_fusion);
306 }
307 cmd->scmd = NULL;
308 cmd->frame_count = 0;
309 cmd->flags = 0;
310 memset(cmd->frame, 0, instance->mfi_frame_size);
311 cmd->frame->io.context = cpu_to_le32(cmd->index);
312 if (!fusion && reset_devices)
313 cmd->frame->hdr.cmd = MFI_CMD_INVALID;
314 list_add(&cmd->list, (&instance->cmd_pool)->next);
315
316 spin_unlock_irqrestore(&instance->mfi_pool_lock, flags);
317
318 }
319
320 static const char *
321 format_timestamp(uint32_t timestamp)
322 {
323 static char buffer[32];
324
325 if ((timestamp & 0xff000000) == 0xff000000)
326 snprintf(buffer, sizeof(buffer), "boot + %us", timestamp &
327 0x00ffffff);
328 else
329 snprintf(buffer, sizeof(buffer), "%us", timestamp);
330 return buffer;
331 }
332
333 static const char *
334 format_class(int8_t class)
335 {
336 static char buffer[6];
337
338 switch (class) {
339 case MFI_EVT_CLASS_DEBUG:
340 return "debug";
341 case MFI_EVT_CLASS_PROGRESS:
342 return "progress";
343 case MFI_EVT_CLASS_INFO:
344 return "info";
345 case MFI_EVT_CLASS_WARNING:
346 return "WARN";
347 case MFI_EVT_CLASS_CRITICAL:
348 return "CRIT";
349 case MFI_EVT_CLASS_FATAL:
350 return "FATAL";
351 case MFI_EVT_CLASS_DEAD:
352 return "DEAD";
353 default:
354 snprintf(buffer, sizeof(buffer), "%d", class);
355 return buffer;
356 }
357 }
358
359 /**
360 * megasas_decode_evt: Decode FW AEN event and print critical event
361 * for information.
362 * @instance: Adapter soft state
363 */
364 static void
365 megasas_decode_evt(struct megasas_instance *instance)
366 {
367 struct megasas_evt_detail *evt_detail = instance->evt_detail;
368 union megasas_evt_class_locale class_locale;
369 class_locale.word = le32_to_cpu(evt_detail->cl.word);
370
371 if (class_locale.members.class >= MFI_EVT_CLASS_CRITICAL)
372 dev_info(&instance->pdev->dev, "%d (%s/0x%04x/%s) - %s\n",
373 le32_to_cpu(evt_detail->seq_num),
374 format_timestamp(le32_to_cpu(evt_detail->time_stamp)),
375 (class_locale.members.locale),
376 format_class(class_locale.members.class),
377 evt_detail->description);
378 }
379
380 /**
381 * The following functions are defined for xscale
382 * (deviceid : 1064R, PERC5) controllers
383 */
384
385 /**
386 * megasas_enable_intr_xscale - Enables interrupts
387 * @regs: MFI register set
388 */
389 static inline void
390 megasas_enable_intr_xscale(struct megasas_instance *instance)
391 {
392 struct megasas_register_set __iomem *regs;
393
394 regs = instance->reg_set;
395 writel(0, &(regs)->outbound_intr_mask);
396
397 /* Dummy readl to force pci flush */
398 readl(&regs->outbound_intr_mask);
399 }
400
401 /**
402 * megasas_disable_intr_xscale -Disables interrupt
403 * @regs: MFI register set
404 */
405 static inline void
406 megasas_disable_intr_xscale(struct megasas_instance *instance)
407 {
408 struct megasas_register_set __iomem *regs;
409 u32 mask = 0x1f;
410
411 regs = instance->reg_set;
412 writel(mask, &regs->outbound_intr_mask);
413 /* Dummy readl to force pci flush */
414 readl(&regs->outbound_intr_mask);
415 }
416
417 /**
418 * megasas_read_fw_status_reg_xscale - returns the current FW status value
419 * @regs: MFI register set
420 */
421 static u32
422 megasas_read_fw_status_reg_xscale(struct megasas_register_set __iomem * regs)
423 {
424 return readl(&(regs)->outbound_msg_0);
425 }
426 /**
427 * megasas_clear_interrupt_xscale - Check & clear interrupt
428 * @regs: MFI register set
429 */
430 static int
431 megasas_clear_intr_xscale(struct megasas_register_set __iomem * regs)
432 {
433 u32 status;
434 u32 mfiStatus = 0;
435
436 /*
437 * Check if it is our interrupt
438 */
439 status = readl(&regs->outbound_intr_status);
440
441 if (status & MFI_OB_INTR_STATUS_MASK)
442 mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE;
443 if (status & MFI_XSCALE_OMR0_CHANGE_INTERRUPT)
444 mfiStatus |= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE;
445
446 /*
447 * Clear the interrupt by writing back the same value
448 */
449 if (mfiStatus)
450 writel(status, &regs->outbound_intr_status);
451
452 /* Dummy readl to force pci flush */
453 readl(&regs->outbound_intr_status);
454
455 return mfiStatus;
456 }
457
458 /**
459 * megasas_fire_cmd_xscale - Sends command to the FW
460 * @frame_phys_addr : Physical address of cmd
461 * @frame_count : Number of frames for the command
462 * @regs : MFI register set
463 */
464 static inline void
465 megasas_fire_cmd_xscale(struct megasas_instance *instance,
466 dma_addr_t frame_phys_addr,
467 u32 frame_count,
468 struct megasas_register_set __iomem *regs)
469 {
470 unsigned long flags;
471
472 spin_lock_irqsave(&instance->hba_lock, flags);
473 writel((frame_phys_addr >> 3)|(frame_count),
474 &(regs)->inbound_queue_port);
475 spin_unlock_irqrestore(&instance->hba_lock, flags);
476 }
477
478 /**
479 * megasas_adp_reset_xscale - For controller reset
480 * @regs: MFI register set
481 */
482 static int
483 megasas_adp_reset_xscale(struct megasas_instance *instance,
484 struct megasas_register_set __iomem *regs)
485 {
486 u32 i;
487 u32 pcidata;
488
489 writel(MFI_ADP_RESET, &regs->inbound_doorbell);
490
491 for (i = 0; i < 3; i++)
492 msleep(1000); /* sleep for 3 secs */
493 pcidata = 0;
494 pci_read_config_dword(instance->pdev, MFI_1068_PCSR_OFFSET, &pcidata);
495 dev_notice(&instance->pdev->dev, "pcidata = %x\n", pcidata);
496 if (pcidata & 0x2) {
497 dev_notice(&instance->pdev->dev, "mfi 1068 offset read=%x\n", pcidata);
498 pcidata &= ~0x2;
499 pci_write_config_dword(instance->pdev,
500 MFI_1068_PCSR_OFFSET, pcidata);
501
502 for (i = 0; i < 2; i++)
503 msleep(1000); /* need to wait 2 secs again */
504
505 pcidata = 0;
506 pci_read_config_dword(instance->pdev,
507 MFI_1068_FW_HANDSHAKE_OFFSET, &pcidata);
508 dev_notice(&instance->pdev->dev, "1068 offset handshake read=%x\n", pcidata);
509 if ((pcidata & 0xffff0000) == MFI_1068_FW_READY) {
510 dev_notice(&instance->pdev->dev, "1068 offset pcidt=%x\n", pcidata);
511 pcidata = 0;
512 pci_write_config_dword(instance->pdev,
513 MFI_1068_FW_HANDSHAKE_OFFSET, pcidata);
514 }
515 }
516 return 0;
517 }
518
519 /**
520 * megasas_check_reset_xscale - For controller reset check
521 * @regs: MFI register set
522 */
523 static int
524 megasas_check_reset_xscale(struct megasas_instance *instance,
525 struct megasas_register_set __iomem *regs)
526 {
527 if ((atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) &&
528 (le32_to_cpu(*instance->consumer) ==
529 MEGASAS_ADPRESET_INPROG_SIGN))
530 return 1;
531 return 0;
532 }
533
534 static struct megasas_instance_template megasas_instance_template_xscale = {
535
536 .fire_cmd = megasas_fire_cmd_xscale,
537 .enable_intr = megasas_enable_intr_xscale,
538 .disable_intr = megasas_disable_intr_xscale,
539 .clear_intr = megasas_clear_intr_xscale,
540 .read_fw_status_reg = megasas_read_fw_status_reg_xscale,
541 .adp_reset = megasas_adp_reset_xscale,
542 .check_reset = megasas_check_reset_xscale,
543 .service_isr = megasas_isr,
544 .tasklet = megasas_complete_cmd_dpc,
545 .init_adapter = megasas_init_adapter_mfi,
546 .build_and_issue_cmd = megasas_build_and_issue_cmd,
547 .issue_dcmd = megasas_issue_dcmd,
548 };
549
550 /**
551 * This is the end of set of functions & definitions specific
552 * to xscale (deviceid : 1064R, PERC5) controllers
553 */
554
555 /**
556 * The following functions are defined for ppc (deviceid : 0x60)
557 * controllers
558 */
559
560 /**
561 * megasas_enable_intr_ppc - Enables interrupts
562 * @regs: MFI register set
563 */
564 static inline void
565 megasas_enable_intr_ppc(struct megasas_instance *instance)
566 {
567 struct megasas_register_set __iomem *regs;
568
569 regs = instance->reg_set;
570 writel(0xFFFFFFFF, &(regs)->outbound_doorbell_clear);
571
572 writel(~0x80000000, &(regs)->outbound_intr_mask);
573
574 /* Dummy readl to force pci flush */
575 readl(&regs->outbound_intr_mask);
576 }
577
578 /**
579 * megasas_disable_intr_ppc - Disable interrupt
580 * @regs: MFI register set
581 */
582 static inline void
583 megasas_disable_intr_ppc(struct megasas_instance *instance)
584 {
585 struct megasas_register_set __iomem *regs;
586 u32 mask = 0xFFFFFFFF;
587
588 regs = instance->reg_set;
589 writel(mask, &regs->outbound_intr_mask);
590 /* Dummy readl to force pci flush */
591 readl(&regs->outbound_intr_mask);
592 }
593
594 /**
595 * megasas_read_fw_status_reg_ppc - returns the current FW status value
596 * @regs: MFI register set
597 */
598 static u32
599 megasas_read_fw_status_reg_ppc(struct megasas_register_set __iomem * regs)
600 {
601 return readl(&(regs)->outbound_scratch_pad);
602 }
603
604 /**
605 * megasas_clear_interrupt_ppc - Check & clear interrupt
606 * @regs: MFI register set
607 */
608 static int
609 megasas_clear_intr_ppc(struct megasas_register_set __iomem * regs)
610 {
611 u32 status, mfiStatus = 0;
612
613 /*
614 * Check if it is our interrupt
615 */
616 status = readl(&regs->outbound_intr_status);
617
618 if (status & MFI_REPLY_1078_MESSAGE_INTERRUPT)
619 mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE;
620
621 if (status & MFI_G2_OUTBOUND_DOORBELL_CHANGE_INTERRUPT)
622 mfiStatus |= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE;
623
624 /*
625 * Clear the interrupt by writing back the same value
626 */
627 writel(status, &regs->outbound_doorbell_clear);
628
629 /* Dummy readl to force pci flush */
630 readl(&regs->outbound_doorbell_clear);
631
632 return mfiStatus;
633 }
634
635 /**
636 * megasas_fire_cmd_ppc - Sends command to the FW
637 * @frame_phys_addr : Physical address of cmd
638 * @frame_count : Number of frames for the command
639 * @regs : MFI register set
640 */
641 static inline void
642 megasas_fire_cmd_ppc(struct megasas_instance *instance,
643 dma_addr_t frame_phys_addr,
644 u32 frame_count,
645 struct megasas_register_set __iomem *regs)
646 {
647 unsigned long flags;
648
649 spin_lock_irqsave(&instance->hba_lock, flags);
650 writel((frame_phys_addr | (frame_count<<1))|1,
651 &(regs)->inbound_queue_port);
652 spin_unlock_irqrestore(&instance->hba_lock, flags);
653 }
654
655 /**
656 * megasas_check_reset_ppc - For controller reset check
657 * @regs: MFI register set
658 */
659 static int
660 megasas_check_reset_ppc(struct megasas_instance *instance,
661 struct megasas_register_set __iomem *regs)
662 {
663 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL)
664 return 1;
665
666 return 0;
667 }
668
669 static struct megasas_instance_template megasas_instance_template_ppc = {
670
671 .fire_cmd = megasas_fire_cmd_ppc,
672 .enable_intr = megasas_enable_intr_ppc,
673 .disable_intr = megasas_disable_intr_ppc,
674 .clear_intr = megasas_clear_intr_ppc,
675 .read_fw_status_reg = megasas_read_fw_status_reg_ppc,
676 .adp_reset = megasas_adp_reset_xscale,
677 .check_reset = megasas_check_reset_ppc,
678 .service_isr = megasas_isr,
679 .tasklet = megasas_complete_cmd_dpc,
680 .init_adapter = megasas_init_adapter_mfi,
681 .build_and_issue_cmd = megasas_build_and_issue_cmd,
682 .issue_dcmd = megasas_issue_dcmd,
683 };
684
685 /**
686 * megasas_enable_intr_skinny - Enables interrupts
687 * @regs: MFI register set
688 */
689 static inline void
690 megasas_enable_intr_skinny(struct megasas_instance *instance)
691 {
692 struct megasas_register_set __iomem *regs;
693
694 regs = instance->reg_set;
695 writel(0xFFFFFFFF, &(regs)->outbound_intr_mask);
696
697 writel(~MFI_SKINNY_ENABLE_INTERRUPT_MASK, &(regs)->outbound_intr_mask);
698
699 /* Dummy readl to force pci flush */
700 readl(&regs->outbound_intr_mask);
701 }
702
703 /**
704 * megasas_disable_intr_skinny - Disables interrupt
705 * @regs: MFI register set
706 */
707 static inline void
708 megasas_disable_intr_skinny(struct megasas_instance *instance)
709 {
710 struct megasas_register_set __iomem *regs;
711 u32 mask = 0xFFFFFFFF;
712
713 regs = instance->reg_set;
714 writel(mask, &regs->outbound_intr_mask);
715 /* Dummy readl to force pci flush */
716 readl(&regs->outbound_intr_mask);
717 }
718
719 /**
720 * megasas_read_fw_status_reg_skinny - returns the current FW status value
721 * @regs: MFI register set
722 */
723 static u32
724 megasas_read_fw_status_reg_skinny(struct megasas_register_set __iomem *regs)
725 {
726 return readl(&(regs)->outbound_scratch_pad);
727 }
728
729 /**
730 * megasas_clear_interrupt_skinny - Check & clear interrupt
731 * @regs: MFI register set
732 */
733 static int
734 megasas_clear_intr_skinny(struct megasas_register_set __iomem *regs)
735 {
736 u32 status;
737 u32 mfiStatus = 0;
738
739 /*
740 * Check if it is our interrupt
741 */
742 status = readl(&regs->outbound_intr_status);
743
744 if (!(status & MFI_SKINNY_ENABLE_INTERRUPT_MASK)) {
745 return 0;
746 }
747
748 /*
749 * Check if it is our interrupt
750 */
751 if ((megasas_read_fw_status_reg_skinny(regs) & MFI_STATE_MASK) ==
752 MFI_STATE_FAULT) {
753 mfiStatus = MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE;
754 } else
755 mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE;
756
757 /*
758 * Clear the interrupt by writing back the same value
759 */
760 writel(status, &regs->outbound_intr_status);
761
762 /*
763 * dummy read to flush PCI
764 */
765 readl(&regs->outbound_intr_status);
766
767 return mfiStatus;
768 }
769
770 /**
771 * megasas_fire_cmd_skinny - Sends command to the FW
772 * @frame_phys_addr : Physical address of cmd
773 * @frame_count : Number of frames for the command
774 * @regs : MFI register set
775 */
776 static inline void
777 megasas_fire_cmd_skinny(struct megasas_instance *instance,
778 dma_addr_t frame_phys_addr,
779 u32 frame_count,
780 struct megasas_register_set __iomem *regs)
781 {
782 unsigned long flags;
783
784 spin_lock_irqsave(&instance->hba_lock, flags);
785 writel(upper_32_bits(frame_phys_addr),
786 &(regs)->inbound_high_queue_port);
787 writel((lower_32_bits(frame_phys_addr) | (frame_count<<1))|1,
788 &(regs)->inbound_low_queue_port);
789 mmiowb();
790 spin_unlock_irqrestore(&instance->hba_lock, flags);
791 }
792
793 /**
794 * megasas_check_reset_skinny - For controller reset check
795 * @regs: MFI register set
796 */
797 static int
798 megasas_check_reset_skinny(struct megasas_instance *instance,
799 struct megasas_register_set __iomem *regs)
800 {
801 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL)
802 return 1;
803
804 return 0;
805 }
806
807 static struct megasas_instance_template megasas_instance_template_skinny = {
808
809 .fire_cmd = megasas_fire_cmd_skinny,
810 .enable_intr = megasas_enable_intr_skinny,
811 .disable_intr = megasas_disable_intr_skinny,
812 .clear_intr = megasas_clear_intr_skinny,
813 .read_fw_status_reg = megasas_read_fw_status_reg_skinny,
814 .adp_reset = megasas_adp_reset_gen2,
815 .check_reset = megasas_check_reset_skinny,
816 .service_isr = megasas_isr,
817 .tasklet = megasas_complete_cmd_dpc,
818 .init_adapter = megasas_init_adapter_mfi,
819 .build_and_issue_cmd = megasas_build_and_issue_cmd,
820 .issue_dcmd = megasas_issue_dcmd,
821 };
822
823
824 /**
825 * The following functions are defined for gen2 (deviceid : 0x78 0x79)
826 * controllers
827 */
828
829 /**
830 * megasas_enable_intr_gen2 - Enables interrupts
831 * @regs: MFI register set
832 */
833 static inline void
834 megasas_enable_intr_gen2(struct megasas_instance *instance)
835 {
836 struct megasas_register_set __iomem *regs;
837
838 regs = instance->reg_set;
839 writel(0xFFFFFFFF, &(regs)->outbound_doorbell_clear);
840
841 /* write ~0x00000005 (4 & 1) to the intr mask*/
842 writel(~MFI_GEN2_ENABLE_INTERRUPT_MASK, &(regs)->outbound_intr_mask);
843
844 /* Dummy readl to force pci flush */
845 readl(&regs->outbound_intr_mask);
846 }
847
848 /**
849 * megasas_disable_intr_gen2 - Disables interrupt
850 * @regs: MFI register set
851 */
852 static inline void
853 megasas_disable_intr_gen2(struct megasas_instance *instance)
854 {
855 struct megasas_register_set __iomem *regs;
856 u32 mask = 0xFFFFFFFF;
857
858 regs = instance->reg_set;
859 writel(mask, &regs->outbound_intr_mask);
860 /* Dummy readl to force pci flush */
861 readl(&regs->outbound_intr_mask);
862 }
863
864 /**
865 * megasas_read_fw_status_reg_gen2 - returns the current FW status value
866 * @regs: MFI register set
867 */
868 static u32
869 megasas_read_fw_status_reg_gen2(struct megasas_register_set __iomem *regs)
870 {
871 return readl(&(regs)->outbound_scratch_pad);
872 }
873
874 /**
875 * megasas_clear_interrupt_gen2 - Check & clear interrupt
876 * @regs: MFI register set
877 */
878 static int
879 megasas_clear_intr_gen2(struct megasas_register_set __iomem *regs)
880 {
881 u32 status;
882 u32 mfiStatus = 0;
883
884 /*
885 * Check if it is our interrupt
886 */
887 status = readl(&regs->outbound_intr_status);
888
889 if (status & MFI_INTR_FLAG_REPLY_MESSAGE) {
890 mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE;
891 }
892 if (status & MFI_G2_OUTBOUND_DOORBELL_CHANGE_INTERRUPT) {
893 mfiStatus |= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE;
894 }
895
896 /*
897 * Clear the interrupt by writing back the same value
898 */
899 if (mfiStatus)
900 writel(status, &regs->outbound_doorbell_clear);
901
902 /* Dummy readl to force pci flush */
903 readl(&regs->outbound_intr_status);
904
905 return mfiStatus;
906 }
907 /**
908 * megasas_fire_cmd_gen2 - Sends command to the FW
909 * @frame_phys_addr : Physical address of cmd
910 * @frame_count : Number of frames for the command
911 * @regs : MFI register set
912 */
913 static inline void
914 megasas_fire_cmd_gen2(struct megasas_instance *instance,
915 dma_addr_t frame_phys_addr,
916 u32 frame_count,
917 struct megasas_register_set __iomem *regs)
918 {
919 unsigned long flags;
920
921 spin_lock_irqsave(&instance->hba_lock, flags);
922 writel((frame_phys_addr | (frame_count<<1))|1,
923 &(regs)->inbound_queue_port);
924 spin_unlock_irqrestore(&instance->hba_lock, flags);
925 }
926
927 /**
928 * megasas_adp_reset_gen2 - For controller reset
929 * @regs: MFI register set
930 */
931 static int
932 megasas_adp_reset_gen2(struct megasas_instance *instance,
933 struct megasas_register_set __iomem *reg_set)
934 {
935 u32 retry = 0 ;
936 u32 HostDiag;
937 u32 __iomem *seq_offset = &reg_set->seq_offset;
938 u32 __iomem *hostdiag_offset = &reg_set->host_diag;
939
940 if (instance->instancet == &megasas_instance_template_skinny) {
941 seq_offset = &reg_set->fusion_seq_offset;
942 hostdiag_offset = &reg_set->fusion_host_diag;
943 }
944
945 writel(0, seq_offset);
946 writel(4, seq_offset);
947 writel(0xb, seq_offset);
948 writel(2, seq_offset);
949 writel(7, seq_offset);
950 writel(0xd, seq_offset);
951
952 msleep(1000);
953
954 HostDiag = (u32)readl(hostdiag_offset);
955
956 while (!(HostDiag & DIAG_WRITE_ENABLE)) {
957 msleep(100);
958 HostDiag = (u32)readl(hostdiag_offset);
959 dev_notice(&instance->pdev->dev, "RESETGEN2: retry=%x, hostdiag=%x\n",
960 retry, HostDiag);
961
962 if (retry++ >= 100)
963 return 1;
964
965 }
966
967 dev_notice(&instance->pdev->dev, "ADP_RESET_GEN2: HostDiag=%x\n", HostDiag);
968
969 writel((HostDiag | DIAG_RESET_ADAPTER), hostdiag_offset);
970
971 ssleep(10);
972
973 HostDiag = (u32)readl(hostdiag_offset);
974 while (HostDiag & DIAG_RESET_ADAPTER) {
975 msleep(100);
976 HostDiag = (u32)readl(hostdiag_offset);
977 dev_notice(&instance->pdev->dev, "RESET_GEN2: retry=%x, hostdiag=%x\n",
978 retry, HostDiag);
979
980 if (retry++ >= 1000)
981 return 1;
982
983 }
984 return 0;
985 }
986
987 /**
988 * megasas_check_reset_gen2 - For controller reset check
989 * @regs: MFI register set
990 */
991 static int
992 megasas_check_reset_gen2(struct megasas_instance *instance,
993 struct megasas_register_set __iomem *regs)
994 {
995 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL)
996 return 1;
997
998 return 0;
999 }
1000
1001 static struct megasas_instance_template megasas_instance_template_gen2 = {
1002
1003 .fire_cmd = megasas_fire_cmd_gen2,
1004 .enable_intr = megasas_enable_intr_gen2,
1005 .disable_intr = megasas_disable_intr_gen2,
1006 .clear_intr = megasas_clear_intr_gen2,
1007 .read_fw_status_reg = megasas_read_fw_status_reg_gen2,
1008 .adp_reset = megasas_adp_reset_gen2,
1009 .check_reset = megasas_check_reset_gen2,
1010 .service_isr = megasas_isr,
1011 .tasklet = megasas_complete_cmd_dpc,
1012 .init_adapter = megasas_init_adapter_mfi,
1013 .build_and_issue_cmd = megasas_build_and_issue_cmd,
1014 .issue_dcmd = megasas_issue_dcmd,
1015 };
1016
1017 /**
1018 * This is the end of set of functions & definitions
1019 * specific to gen2 (deviceid : 0x78, 0x79) controllers
1020 */
1021
1022 /*
1023 * Template added for TB (Fusion)
1024 */
1025 extern struct megasas_instance_template megasas_instance_template_fusion;
1026
1027 /**
1028 * megasas_issue_polled - Issues a polling command
1029 * @instance: Adapter soft state
1030 * @cmd: Command packet to be issued
1031 *
1032 * For polling, MFI requires the cmd_status to be set to MFI_STAT_INVALID_STATUS before posting.
1033 */
1034 int
1035 megasas_issue_polled(struct megasas_instance *instance, struct megasas_cmd *cmd)
1036 {
1037 struct megasas_header *frame_hdr = &cmd->frame->hdr;
1038
1039 frame_hdr->cmd_status = MFI_STAT_INVALID_STATUS;
1040 frame_hdr->flags |= cpu_to_le16(MFI_FRAME_DONT_POST_IN_REPLY_QUEUE);
1041
1042 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
1043 dev_err(&instance->pdev->dev, "Failed from %s %d\n",
1044 __func__, __LINE__);
1045 return DCMD_NOT_FIRED;
1046 }
1047
1048 instance->instancet->issue_dcmd(instance, cmd);
1049
1050 return wait_and_poll(instance, cmd, instance->requestorId ?
1051 MEGASAS_ROUTINE_WAIT_TIME_VF : MFI_IO_TIMEOUT_SECS);
1052 }
1053
1054 /**
1055 * megasas_issue_blocked_cmd - Synchronous wrapper around regular FW cmds
1056 * @instance: Adapter soft state
1057 * @cmd: Command to be issued
1058 * @timeout: Timeout in seconds
1059 *
1060 * This function waits on an event for the command to be returned from ISR.
1061 * Max wait time is MEGASAS_INTERNAL_CMD_WAIT_TIME secs
1062 * Used to issue ioctl commands.
1063 */
1064 int
1065 megasas_issue_blocked_cmd(struct megasas_instance *instance,
1066 struct megasas_cmd *cmd, int timeout)
1067 {
1068 int ret = 0;
1069 cmd->cmd_status_drv = MFI_STAT_INVALID_STATUS;
1070
1071 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
1072 dev_err(&instance->pdev->dev, "Failed from %s %d\n",
1073 __func__, __LINE__);
1074 return DCMD_NOT_FIRED;
1075 }
1076
1077 instance->instancet->issue_dcmd(instance, cmd);
1078
1079 if (timeout) {
1080 ret = wait_event_timeout(instance->int_cmd_wait_q,
1081 cmd->cmd_status_drv != MFI_STAT_INVALID_STATUS, timeout * HZ);
1082 if (!ret) {
1083 dev_err(&instance->pdev->dev, "Failed from %s %d DCMD Timed out\n",
1084 __func__, __LINE__);
1085 return DCMD_TIMEOUT;
1086 }
1087 } else
1088 wait_event(instance->int_cmd_wait_q,
1089 cmd->cmd_status_drv != MFI_STAT_INVALID_STATUS);
1090
1091 return (cmd->cmd_status_drv == MFI_STAT_OK) ?
1092 DCMD_SUCCESS : DCMD_FAILED;
1093 }
1094
1095 /**
1096 * megasas_issue_blocked_abort_cmd - Aborts previously issued cmd
1097 * @instance: Adapter soft state
1098 * @cmd_to_abort: Previously issued cmd to be aborted
1099 * @timeout: Timeout in seconds
1100 *
1101 * MFI firmware can abort previously issued AEN comamnd (automatic event
1102 * notification). The megasas_issue_blocked_abort_cmd() issues such abort
1103 * cmd and waits for return status.
1104 * Max wait time is MEGASAS_INTERNAL_CMD_WAIT_TIME secs
1105 */
1106 static int
1107 megasas_issue_blocked_abort_cmd(struct megasas_instance *instance,
1108 struct megasas_cmd *cmd_to_abort, int timeout)
1109 {
1110 struct megasas_cmd *cmd;
1111 struct megasas_abort_frame *abort_fr;
1112 int ret = 0;
1113
1114 cmd = megasas_get_cmd(instance);
1115
1116 if (!cmd)
1117 return -1;
1118
1119 abort_fr = &cmd->frame->abort;
1120
1121 /*
1122 * Prepare and issue the abort frame
1123 */
1124 abort_fr->cmd = MFI_CMD_ABORT;
1125 abort_fr->cmd_status = MFI_STAT_INVALID_STATUS;
1126 abort_fr->flags = cpu_to_le16(0);
1127 abort_fr->abort_context = cpu_to_le32(cmd_to_abort->index);
1128 abort_fr->abort_mfi_phys_addr_lo =
1129 cpu_to_le32(lower_32_bits(cmd_to_abort->frame_phys_addr));
1130 abort_fr->abort_mfi_phys_addr_hi =
1131 cpu_to_le32(upper_32_bits(cmd_to_abort->frame_phys_addr));
1132
1133 cmd->sync_cmd = 1;
1134 cmd->cmd_status_drv = MFI_STAT_INVALID_STATUS;
1135
1136 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
1137 dev_err(&instance->pdev->dev, "Failed from %s %d\n",
1138 __func__, __LINE__);
1139 return DCMD_NOT_FIRED;
1140 }
1141
1142 instance->instancet->issue_dcmd(instance, cmd);
1143
1144 if (timeout) {
1145 ret = wait_event_timeout(instance->abort_cmd_wait_q,
1146 cmd->cmd_status_drv != MFI_STAT_INVALID_STATUS, timeout * HZ);
1147 if (!ret) {
1148 dev_err(&instance->pdev->dev, "Failed from %s %d Abort Timed out\n",
1149 __func__, __LINE__);
1150 return DCMD_TIMEOUT;
1151 }
1152 } else
1153 wait_event(instance->abort_cmd_wait_q,
1154 cmd->cmd_status_drv != MFI_STAT_INVALID_STATUS);
1155
1156 cmd->sync_cmd = 0;
1157
1158 megasas_return_cmd(instance, cmd);
1159 return (cmd->cmd_status_drv == MFI_STAT_OK) ?
1160 DCMD_SUCCESS : DCMD_FAILED;
1161 }
1162
1163 /**
1164 * megasas_make_sgl32 - Prepares 32-bit SGL
1165 * @instance: Adapter soft state
1166 * @scp: SCSI command from the mid-layer
1167 * @mfi_sgl: SGL to be filled in
1168 *
1169 * If successful, this function returns the number of SG elements. Otherwise,
1170 * it returnes -1.
1171 */
1172 static int
1173 megasas_make_sgl32(struct megasas_instance *instance, struct scsi_cmnd *scp,
1174 union megasas_sgl *mfi_sgl)
1175 {
1176 int i;
1177 int sge_count;
1178 struct scatterlist *os_sgl;
1179
1180 sge_count = scsi_dma_map(scp);
1181 BUG_ON(sge_count < 0);
1182
1183 if (sge_count) {
1184 scsi_for_each_sg(scp, os_sgl, sge_count, i) {
1185 mfi_sgl->sge32[i].length = cpu_to_le32(sg_dma_len(os_sgl));
1186 mfi_sgl->sge32[i].phys_addr = cpu_to_le32(sg_dma_address(os_sgl));
1187 }
1188 }
1189 return sge_count;
1190 }
1191
1192 /**
1193 * megasas_make_sgl64 - Prepares 64-bit SGL
1194 * @instance: Adapter soft state
1195 * @scp: SCSI command from the mid-layer
1196 * @mfi_sgl: SGL to be filled in
1197 *
1198 * If successful, this function returns the number of SG elements. Otherwise,
1199 * it returnes -1.
1200 */
1201 static int
1202 megasas_make_sgl64(struct megasas_instance *instance, struct scsi_cmnd *scp,
1203 union megasas_sgl *mfi_sgl)
1204 {
1205 int i;
1206 int sge_count;
1207 struct scatterlist *os_sgl;
1208
1209 sge_count = scsi_dma_map(scp);
1210 BUG_ON(sge_count < 0);
1211
1212 if (sge_count) {
1213 scsi_for_each_sg(scp, os_sgl, sge_count, i) {
1214 mfi_sgl->sge64[i].length = cpu_to_le32(sg_dma_len(os_sgl));
1215 mfi_sgl->sge64[i].phys_addr = cpu_to_le64(sg_dma_address(os_sgl));
1216 }
1217 }
1218 return sge_count;
1219 }
1220
1221 /**
1222 * megasas_make_sgl_skinny - Prepares IEEE SGL
1223 * @instance: Adapter soft state
1224 * @scp: SCSI command from the mid-layer
1225 * @mfi_sgl: SGL to be filled in
1226 *
1227 * If successful, this function returns the number of SG elements. Otherwise,
1228 * it returnes -1.
1229 */
1230 static int
1231 megasas_make_sgl_skinny(struct megasas_instance *instance,
1232 struct scsi_cmnd *scp, union megasas_sgl *mfi_sgl)
1233 {
1234 int i;
1235 int sge_count;
1236 struct scatterlist *os_sgl;
1237
1238 sge_count = scsi_dma_map(scp);
1239
1240 if (sge_count) {
1241 scsi_for_each_sg(scp, os_sgl, sge_count, i) {
1242 mfi_sgl->sge_skinny[i].length =
1243 cpu_to_le32(sg_dma_len(os_sgl));
1244 mfi_sgl->sge_skinny[i].phys_addr =
1245 cpu_to_le64(sg_dma_address(os_sgl));
1246 mfi_sgl->sge_skinny[i].flag = cpu_to_le32(0);
1247 }
1248 }
1249 return sge_count;
1250 }
1251
1252 /**
1253 * megasas_get_frame_count - Computes the number of frames
1254 * @frame_type : type of frame- io or pthru frame
1255 * @sge_count : number of sg elements
1256 *
1257 * Returns the number of frames required for numnber of sge's (sge_count)
1258 */
1259
1260 static u32 megasas_get_frame_count(struct megasas_instance *instance,
1261 u8 sge_count, u8 frame_type)
1262 {
1263 int num_cnt;
1264 int sge_bytes;
1265 u32 sge_sz;
1266 u32 frame_count = 0;
1267
1268 sge_sz = (IS_DMA64) ? sizeof(struct megasas_sge64) :
1269 sizeof(struct megasas_sge32);
1270
1271 if (instance->flag_ieee) {
1272 sge_sz = sizeof(struct megasas_sge_skinny);
1273 }
1274
1275 /*
1276 * Main frame can contain 2 SGEs for 64-bit SGLs and
1277 * 3 SGEs for 32-bit SGLs for ldio &
1278 * 1 SGEs for 64-bit SGLs and
1279 * 2 SGEs for 32-bit SGLs for pthru frame
1280 */
1281 if (unlikely(frame_type == PTHRU_FRAME)) {
1282 if (instance->flag_ieee == 1) {
1283 num_cnt = sge_count - 1;
1284 } else if (IS_DMA64)
1285 num_cnt = sge_count - 1;
1286 else
1287 num_cnt = sge_count - 2;
1288 } else {
1289 if (instance->flag_ieee == 1) {
1290 num_cnt = sge_count - 1;
1291 } else if (IS_DMA64)
1292 num_cnt = sge_count - 2;
1293 else
1294 num_cnt = sge_count - 3;
1295 }
1296
1297 if (num_cnt > 0) {
1298 sge_bytes = sge_sz * num_cnt;
1299
1300 frame_count = (sge_bytes / MEGAMFI_FRAME_SIZE) +
1301 ((sge_bytes % MEGAMFI_FRAME_SIZE) ? 1 : 0) ;
1302 }
1303 /* Main frame */
1304 frame_count += 1;
1305
1306 if (frame_count > 7)
1307 frame_count = 8;
1308 return frame_count;
1309 }
1310
1311 /**
1312 * megasas_build_dcdb - Prepares a direct cdb (DCDB) command
1313 * @instance: Adapter soft state
1314 * @scp: SCSI command
1315 * @cmd: Command to be prepared in
1316 *
1317 * This function prepares CDB commands. These are typcially pass-through
1318 * commands to the devices.
1319 */
1320 static int
1321 megasas_build_dcdb(struct megasas_instance *instance, struct scsi_cmnd *scp,
1322 struct megasas_cmd *cmd)
1323 {
1324 u32 is_logical;
1325 u32 device_id;
1326 u16 flags = 0;
1327 struct megasas_pthru_frame *pthru;
1328
1329 is_logical = MEGASAS_IS_LOGICAL(scp->device);
1330 device_id = MEGASAS_DEV_INDEX(scp);
1331 pthru = (struct megasas_pthru_frame *)cmd->frame;
1332
1333 if (scp->sc_data_direction == PCI_DMA_TODEVICE)
1334 flags = MFI_FRAME_DIR_WRITE;
1335 else if (scp->sc_data_direction == PCI_DMA_FROMDEVICE)
1336 flags = MFI_FRAME_DIR_READ;
1337 else if (scp->sc_data_direction == PCI_DMA_NONE)
1338 flags = MFI_FRAME_DIR_NONE;
1339
1340 if (instance->flag_ieee == 1) {
1341 flags |= MFI_FRAME_IEEE;
1342 }
1343
1344 /*
1345 * Prepare the DCDB frame
1346 */
1347 pthru->cmd = (is_logical) ? MFI_CMD_LD_SCSI_IO : MFI_CMD_PD_SCSI_IO;
1348 pthru->cmd_status = 0x0;
1349 pthru->scsi_status = 0x0;
1350 pthru->target_id = device_id;
1351 pthru->lun = scp->device->lun;
1352 pthru->cdb_len = scp->cmd_len;
1353 pthru->timeout = 0;
1354 pthru->pad_0 = 0;
1355 pthru->flags = cpu_to_le16(flags);
1356 pthru->data_xfer_len = cpu_to_le32(scsi_bufflen(scp));
1357
1358 memcpy(pthru->cdb, scp->cmnd, scp->cmd_len);
1359
1360 /*
1361 * If the command is for the tape device, set the
1362 * pthru timeout to the os layer timeout value.
1363 */
1364 if (scp->device->type == TYPE_TAPE) {
1365 if ((scp->request->timeout / HZ) > 0xFFFF)
1366 pthru->timeout = cpu_to_le16(0xFFFF);
1367 else
1368 pthru->timeout = cpu_to_le16(scp->request->timeout / HZ);
1369 }
1370
1371 /*
1372 * Construct SGL
1373 */
1374 if (instance->flag_ieee == 1) {
1375 pthru->flags |= cpu_to_le16(MFI_FRAME_SGL64);
1376 pthru->sge_count = megasas_make_sgl_skinny(instance, scp,
1377 &pthru->sgl);
1378 } else if (IS_DMA64) {
1379 pthru->flags |= cpu_to_le16(MFI_FRAME_SGL64);
1380 pthru->sge_count = megasas_make_sgl64(instance, scp,
1381 &pthru->sgl);
1382 } else
1383 pthru->sge_count = megasas_make_sgl32(instance, scp,
1384 &pthru->sgl);
1385
1386 if (pthru->sge_count > instance->max_num_sge) {
1387 dev_err(&instance->pdev->dev, "DCDB too many SGE NUM=%x\n",
1388 pthru->sge_count);
1389 return 0;
1390 }
1391
1392 /*
1393 * Sense info specific
1394 */
1395 pthru->sense_len = SCSI_SENSE_BUFFERSIZE;
1396 pthru->sense_buf_phys_addr_hi =
1397 cpu_to_le32(upper_32_bits(cmd->sense_phys_addr));
1398 pthru->sense_buf_phys_addr_lo =
1399 cpu_to_le32(lower_32_bits(cmd->sense_phys_addr));
1400
1401 /*
1402 * Compute the total number of frames this command consumes. FW uses
1403 * this number to pull sufficient number of frames from host memory.
1404 */
1405 cmd->frame_count = megasas_get_frame_count(instance, pthru->sge_count,
1406 PTHRU_FRAME);
1407
1408 return cmd->frame_count;
1409 }
1410
1411 /**
1412 * megasas_build_ldio - Prepares IOs to logical devices
1413 * @instance: Adapter soft state
1414 * @scp: SCSI command
1415 * @cmd: Command to be prepared
1416 *
1417 * Frames (and accompanying SGLs) for regular SCSI IOs use this function.
1418 */
1419 static int
1420 megasas_build_ldio(struct megasas_instance *instance, struct scsi_cmnd *scp,
1421 struct megasas_cmd *cmd)
1422 {
1423 u32 device_id;
1424 u8 sc = scp->cmnd[0];
1425 u16 flags = 0;
1426 struct megasas_io_frame *ldio;
1427
1428 device_id = MEGASAS_DEV_INDEX(scp);
1429 ldio = (struct megasas_io_frame *)cmd->frame;
1430
1431 if (scp->sc_data_direction == PCI_DMA_TODEVICE)
1432 flags = MFI_FRAME_DIR_WRITE;
1433 else if (scp->sc_data_direction == PCI_DMA_FROMDEVICE)
1434 flags = MFI_FRAME_DIR_READ;
1435
1436 if (instance->flag_ieee == 1) {
1437 flags |= MFI_FRAME_IEEE;
1438 }
1439
1440 /*
1441 * Prepare the Logical IO frame: 2nd bit is zero for all read cmds
1442 */
1443 ldio->cmd = (sc & 0x02) ? MFI_CMD_LD_WRITE : MFI_CMD_LD_READ;
1444 ldio->cmd_status = 0x0;
1445 ldio->scsi_status = 0x0;
1446 ldio->target_id = device_id;
1447 ldio->timeout = 0;
1448 ldio->reserved_0 = 0;
1449 ldio->pad_0 = 0;
1450 ldio->flags = cpu_to_le16(flags);
1451 ldio->start_lba_hi = 0;
1452 ldio->access_byte = (scp->cmd_len != 6) ? scp->cmnd[1] : 0;
1453
1454 /*
1455 * 6-byte READ(0x08) or WRITE(0x0A) cdb
1456 */
1457 if (scp->cmd_len == 6) {
1458 ldio->lba_count = cpu_to_le32((u32) scp->cmnd[4]);
1459 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[1] << 16) |
1460 ((u32) scp->cmnd[2] << 8) |
1461 (u32) scp->cmnd[3]);
1462
1463 ldio->start_lba_lo &= cpu_to_le32(0x1FFFFF);
1464 }
1465
1466 /*
1467 * 10-byte READ(0x28) or WRITE(0x2A) cdb
1468 */
1469 else if (scp->cmd_len == 10) {
1470 ldio->lba_count = cpu_to_le32((u32) scp->cmnd[8] |
1471 ((u32) scp->cmnd[7] << 8));
1472 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[2] << 24) |
1473 ((u32) scp->cmnd[3] << 16) |
1474 ((u32) scp->cmnd[4] << 8) |
1475 (u32) scp->cmnd[5]);
1476 }
1477
1478 /*
1479 * 12-byte READ(0xA8) or WRITE(0xAA) cdb
1480 */
1481 else if (scp->cmd_len == 12) {
1482 ldio->lba_count = cpu_to_le32(((u32) scp->cmnd[6] << 24) |
1483 ((u32) scp->cmnd[7] << 16) |
1484 ((u32) scp->cmnd[8] << 8) |
1485 (u32) scp->cmnd[9]);
1486
1487 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[2] << 24) |
1488 ((u32) scp->cmnd[3] << 16) |
1489 ((u32) scp->cmnd[4] << 8) |
1490 (u32) scp->cmnd[5]);
1491 }
1492
1493 /*
1494 * 16-byte READ(0x88) or WRITE(0x8A) cdb
1495 */
1496 else if (scp->cmd_len == 16) {
1497 ldio->lba_count = cpu_to_le32(((u32) scp->cmnd[10] << 24) |
1498 ((u32) scp->cmnd[11] << 16) |
1499 ((u32) scp->cmnd[12] << 8) |
1500 (u32) scp->cmnd[13]);
1501
1502 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[6] << 24) |
1503 ((u32) scp->cmnd[7] << 16) |
1504 ((u32) scp->cmnd[8] << 8) |
1505 (u32) scp->cmnd[9]);
1506
1507 ldio->start_lba_hi = cpu_to_le32(((u32) scp->cmnd[2] << 24) |
1508 ((u32) scp->cmnd[3] << 16) |
1509 ((u32) scp->cmnd[4] << 8) |
1510 (u32) scp->cmnd[5]);
1511
1512 }
1513
1514 /*
1515 * Construct SGL
1516 */
1517 if (instance->flag_ieee) {
1518 ldio->flags |= cpu_to_le16(MFI_FRAME_SGL64);
1519 ldio->sge_count = megasas_make_sgl_skinny(instance, scp,
1520 &ldio->sgl);
1521 } else if (IS_DMA64) {
1522 ldio->flags |= cpu_to_le16(MFI_FRAME_SGL64);
1523 ldio->sge_count = megasas_make_sgl64(instance, scp, &ldio->sgl);
1524 } else
1525 ldio->sge_count = megasas_make_sgl32(instance, scp, &ldio->sgl);
1526
1527 if (ldio->sge_count > instance->max_num_sge) {
1528 dev_err(&instance->pdev->dev, "build_ld_io: sge_count = %x\n",
1529 ldio->sge_count);
1530 return 0;
1531 }
1532
1533 /*
1534 * Sense info specific
1535 */
1536 ldio->sense_len = SCSI_SENSE_BUFFERSIZE;
1537 ldio->sense_buf_phys_addr_hi = 0;
1538 ldio->sense_buf_phys_addr_lo = cpu_to_le32(cmd->sense_phys_addr);
1539
1540 /*
1541 * Compute the total number of frames this command consumes. FW uses
1542 * this number to pull sufficient number of frames from host memory.
1543 */
1544 cmd->frame_count = megasas_get_frame_count(instance,
1545 ldio->sge_count, IO_FRAME);
1546
1547 return cmd->frame_count;
1548 }
1549
1550 /**
1551 * megasas_cmd_type - Checks if the cmd is for logical drive/sysPD
1552 * and whether it's RW or non RW
1553 * @scmd: SCSI command
1554 *
1555 */
1556 inline int megasas_cmd_type(struct scsi_cmnd *cmd)
1557 {
1558 int ret;
1559
1560 switch (cmd->cmnd[0]) {
1561 case READ_10:
1562 case WRITE_10:
1563 case READ_12:
1564 case WRITE_12:
1565 case READ_6:
1566 case WRITE_6:
1567 case READ_16:
1568 case WRITE_16:
1569 ret = (MEGASAS_IS_LOGICAL(cmd->device)) ?
1570 READ_WRITE_LDIO : READ_WRITE_SYSPDIO;
1571 break;
1572 default:
1573 ret = (MEGASAS_IS_LOGICAL(cmd->device)) ?
1574 NON_READ_WRITE_LDIO : NON_READ_WRITE_SYSPDIO;
1575 }
1576 return ret;
1577 }
1578
1579 /**
1580 * megasas_dump_pending_frames - Dumps the frame address of all pending cmds
1581 * in FW
1582 * @instance: Adapter soft state
1583 */
1584 static inline void
1585 megasas_dump_pending_frames(struct megasas_instance *instance)
1586 {
1587 struct megasas_cmd *cmd;
1588 int i,n;
1589 union megasas_sgl *mfi_sgl;
1590 struct megasas_io_frame *ldio;
1591 struct megasas_pthru_frame *pthru;
1592 u32 sgcount;
1593 u16 max_cmd = instance->max_fw_cmds;
1594
1595 dev_err(&instance->pdev->dev, "[%d]: Dumping Frame Phys Address of all pending cmds in FW\n",instance->host->host_no);
1596 dev_err(&instance->pdev->dev, "[%d]: Total OS Pending cmds : %d\n",instance->host->host_no,atomic_read(&instance->fw_outstanding));
1597 if (IS_DMA64)
1598 dev_err(&instance->pdev->dev, "[%d]: 64 bit SGLs were sent to FW\n",instance->host->host_no);
1599 else
1600 dev_err(&instance->pdev->dev, "[%d]: 32 bit SGLs were sent to FW\n",instance->host->host_no);
1601
1602 dev_err(&instance->pdev->dev, "[%d]: Pending OS cmds in FW : \n",instance->host->host_no);
1603 for (i = 0; i < max_cmd; i++) {
1604 cmd = instance->cmd_list[i];
1605 if (!cmd->scmd)
1606 continue;
1607 dev_err(&instance->pdev->dev, "[%d]: Frame addr :0x%08lx : ",instance->host->host_no,(unsigned long)cmd->frame_phys_addr);
1608 if (megasas_cmd_type(cmd->scmd) == READ_WRITE_LDIO) {
1609 ldio = (struct megasas_io_frame *)cmd->frame;
1610 mfi_sgl = &ldio->sgl;
1611 sgcount = ldio->sge_count;
1612 dev_err(&instance->pdev->dev, "[%d]: frame count : 0x%x, Cmd : 0x%x, Tgt id : 0x%x,"
1613 " lba lo : 0x%x, lba_hi : 0x%x, sense_buf addr : 0x%x,sge count : 0x%x\n",
1614 instance->host->host_no, cmd->frame_count, ldio->cmd, ldio->target_id,
1615 le32_to_cpu(ldio->start_lba_lo), le32_to_cpu(ldio->start_lba_hi),
1616 le32_to_cpu(ldio->sense_buf_phys_addr_lo), sgcount);
1617 } else {
1618 pthru = (struct megasas_pthru_frame *) cmd->frame;
1619 mfi_sgl = &pthru->sgl;
1620 sgcount = pthru->sge_count;
1621 dev_err(&instance->pdev->dev, "[%d]: frame count : 0x%x, Cmd : 0x%x, Tgt id : 0x%x, "
1622 "lun : 0x%x, cdb_len : 0x%x, data xfer len : 0x%x, sense_buf addr : 0x%x,sge count : 0x%x\n",
1623 instance->host->host_no, cmd->frame_count, pthru->cmd, pthru->target_id,
1624 pthru->lun, pthru->cdb_len, le32_to_cpu(pthru->data_xfer_len),
1625 le32_to_cpu(pthru->sense_buf_phys_addr_lo), sgcount);
1626 }
1627 if (megasas_dbg_lvl & MEGASAS_DBG_LVL) {
1628 for (n = 0; n < sgcount; n++) {
1629 if (IS_DMA64)
1630 dev_err(&instance->pdev->dev, "sgl len : 0x%x, sgl addr : 0x%llx\n",
1631 le32_to_cpu(mfi_sgl->sge64[n].length),
1632 le64_to_cpu(mfi_sgl->sge64[n].phys_addr));
1633 else
1634 dev_err(&instance->pdev->dev, "sgl len : 0x%x, sgl addr : 0x%x\n",
1635 le32_to_cpu(mfi_sgl->sge32[n].length),
1636 le32_to_cpu(mfi_sgl->sge32[n].phys_addr));
1637 }
1638 }
1639 } /*for max_cmd*/
1640 dev_err(&instance->pdev->dev, "[%d]: Pending Internal cmds in FW : \n",instance->host->host_no);
1641 for (i = 0; i < max_cmd; i++) {
1642
1643 cmd = instance->cmd_list[i];
1644
1645 if (cmd->sync_cmd == 1)
1646 dev_err(&instance->pdev->dev, "0x%08lx : ", (unsigned long)cmd->frame_phys_addr);
1647 }
1648 dev_err(&instance->pdev->dev, "[%d]: Dumping Done\n\n",instance->host->host_no);
1649 }
1650
1651 u32
1652 megasas_build_and_issue_cmd(struct megasas_instance *instance,
1653 struct scsi_cmnd *scmd)
1654 {
1655 struct megasas_cmd *cmd;
1656 u32 frame_count;
1657
1658 cmd = megasas_get_cmd(instance);
1659 if (!cmd)
1660 return SCSI_MLQUEUE_HOST_BUSY;
1661
1662 /*
1663 * Logical drive command
1664 */
1665 if (megasas_cmd_type(scmd) == READ_WRITE_LDIO)
1666 frame_count = megasas_build_ldio(instance, scmd, cmd);
1667 else
1668 frame_count = megasas_build_dcdb(instance, scmd, cmd);
1669
1670 if (!frame_count)
1671 goto out_return_cmd;
1672
1673 cmd->scmd = scmd;
1674 scmd->SCp.ptr = (char *)cmd;
1675
1676 /*
1677 * Issue the command to the FW
1678 */
1679 atomic_inc(&instance->fw_outstanding);
1680
1681 instance->instancet->fire_cmd(instance, cmd->frame_phys_addr,
1682 cmd->frame_count-1, instance->reg_set);
1683
1684 return 0;
1685 out_return_cmd:
1686 megasas_return_cmd(instance, cmd);
1687 return SCSI_MLQUEUE_HOST_BUSY;
1688 }
1689
1690
1691 /**
1692 * megasas_queue_command - Queue entry point
1693 * @scmd: SCSI command to be queued
1694 * @done: Callback entry point
1695 */
1696 static int
1697 megasas_queue_command(struct Scsi_Host *shost, struct scsi_cmnd *scmd)
1698 {
1699 struct megasas_instance *instance;
1700 struct MR_PRIV_DEVICE *mr_device_priv_data;
1701
1702 instance = (struct megasas_instance *)
1703 scmd->device->host->hostdata;
1704
1705 if (instance->unload == 1) {
1706 scmd->result = DID_NO_CONNECT << 16;
1707 scmd->scsi_done(scmd);
1708 return 0;
1709 }
1710
1711 if (instance->issuepend_done == 0)
1712 return SCSI_MLQUEUE_HOST_BUSY;
1713
1714
1715 /* Check for an mpio path and adjust behavior */
1716 if (atomic_read(&instance->adprecovery) == MEGASAS_ADPRESET_SM_INFAULT) {
1717 if (megasas_check_mpio_paths(instance, scmd) ==
1718 (DID_REQUEUE << 16)) {
1719 return SCSI_MLQUEUE_HOST_BUSY;
1720 } else {
1721 scmd->result = DID_NO_CONNECT << 16;
1722 scmd->scsi_done(scmd);
1723 return 0;
1724 }
1725 }
1726
1727 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
1728 scmd->result = DID_NO_CONNECT << 16;
1729 scmd->scsi_done(scmd);
1730 return 0;
1731 }
1732
1733 mr_device_priv_data = scmd->device->hostdata;
1734 if (!mr_device_priv_data) {
1735 scmd->result = DID_NO_CONNECT << 16;
1736 scmd->scsi_done(scmd);
1737 return 0;
1738 }
1739
1740 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL)
1741 return SCSI_MLQUEUE_HOST_BUSY;
1742
1743 if (mr_device_priv_data->tm_busy)
1744 return SCSI_MLQUEUE_DEVICE_BUSY;
1745
1746
1747 scmd->result = 0;
1748
1749 if (MEGASAS_IS_LOGICAL(scmd->device) &&
1750 (scmd->device->id >= instance->fw_supported_vd_count ||
1751 scmd->device->lun)) {
1752 scmd->result = DID_BAD_TARGET << 16;
1753 goto out_done;
1754 }
1755
1756 if ((scmd->cmnd[0] == SYNCHRONIZE_CACHE) &&
1757 MEGASAS_IS_LOGICAL(scmd->device) &&
1758 (!instance->fw_sync_cache_support)) {
1759 scmd->result = DID_OK << 16;
1760 goto out_done;
1761 }
1762
1763 return instance->instancet->build_and_issue_cmd(instance, scmd);
1764
1765 out_done:
1766 scmd->scsi_done(scmd);
1767 return 0;
1768 }
1769
1770 static struct megasas_instance *megasas_lookup_instance(u16 host_no)
1771 {
1772 int i;
1773
1774 for (i = 0; i < megasas_mgmt_info.max_index; i++) {
1775
1776 if ((megasas_mgmt_info.instance[i]) &&
1777 (megasas_mgmt_info.instance[i]->host->host_no == host_no))
1778 return megasas_mgmt_info.instance[i];
1779 }
1780
1781 return NULL;
1782 }
1783
1784 /*
1785 * megasas_set_dynamic_target_properties -
1786 * Device property set by driver may not be static and it is required to be
1787 * updated after OCR
1788 *
1789 * set tm_capable.
1790 * set dma alignment (only for eedp protection enable vd).
1791 *
1792 * @sdev: OS provided scsi device
1793 *
1794 * Returns void
1795 */
1796 void megasas_set_dynamic_target_properties(struct scsi_device *sdev)
1797 {
1798 u16 pd_index = 0, ld;
1799 u32 device_id;
1800 struct megasas_instance *instance;
1801 struct fusion_context *fusion;
1802 struct MR_PRIV_DEVICE *mr_device_priv_data;
1803 struct MR_PD_CFG_SEQ_NUM_SYNC *pd_sync;
1804 struct MR_LD_RAID *raid;
1805 struct MR_DRV_RAID_MAP_ALL *local_map_ptr;
1806
1807 instance = megasas_lookup_instance(sdev->host->host_no);
1808 fusion = instance->ctrl_context;
1809 mr_device_priv_data = sdev->hostdata;
1810
1811 if (!fusion || !mr_device_priv_data)
1812 return;
1813
1814 if (MEGASAS_IS_LOGICAL(sdev)) {
1815 device_id = ((sdev->channel % 2) * MEGASAS_MAX_DEV_PER_CHANNEL)
1816 + sdev->id;
1817 local_map_ptr = fusion->ld_drv_map[(instance->map_id & 1)];
1818 ld = MR_TargetIdToLdGet(device_id, local_map_ptr);
1819 if (ld >= instance->fw_supported_vd_count)
1820 return;
1821 raid = MR_LdRaidGet(ld, local_map_ptr);
1822
1823 if (raid->capability.ldPiMode == MR_PROT_INFO_TYPE_CONTROLLER)
1824 blk_queue_update_dma_alignment(sdev->request_queue, 0x7);
1825
1826 mr_device_priv_data->is_tm_capable =
1827 raid->capability.tmCapable;
1828 } else if (instance->use_seqnum_jbod_fp) {
1829 pd_index = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) +
1830 sdev->id;
1831 pd_sync = (void *)fusion->pd_seq_sync
1832 [(instance->pd_seq_map_id - 1) & 1];
1833 mr_device_priv_data->is_tm_capable =
1834 pd_sync->seq[pd_index].capability.tmCapable;
1835 }
1836 }
1837
1838 /*
1839 * megasas_set_nvme_device_properties -
1840 * set nomerges=2
1841 * set virtual page boundary = 4K (current mr_nvme_pg_size is 4K).
1842 * set maximum io transfer = MDTS of NVME device provided by MR firmware.
1843 *
1844 * MR firmware provides value in KB. Caller of this function converts
1845 * kb into bytes.
1846 *
1847 * e.a MDTS=5 means 2^5 * nvme page size. (In case of 4K page size,
1848 * MR firmware provides value 128 as (32 * 4K) = 128K.
1849 *
1850 * @sdev: scsi device
1851 * @max_io_size: maximum io transfer size
1852 *
1853 */
1854 static inline void
1855 megasas_set_nvme_device_properties(struct scsi_device *sdev, u32 max_io_size)
1856 {
1857 struct megasas_instance *instance;
1858 u32 mr_nvme_pg_size;
1859
1860 instance = (struct megasas_instance *)sdev->host->hostdata;
1861 mr_nvme_pg_size = max_t(u32, instance->nvme_page_size,
1862 MR_DEFAULT_NVME_PAGE_SIZE);
1863
1864 blk_queue_max_hw_sectors(sdev->request_queue, (max_io_size / 512));
1865
1866 queue_flag_set_unlocked(QUEUE_FLAG_NOMERGES, sdev->request_queue);
1867 blk_queue_virt_boundary(sdev->request_queue, mr_nvme_pg_size - 1);
1868 }
1869
1870
1871 /*
1872 * megasas_set_static_target_properties -
1873 * Device property set by driver are static and it is not required to be
1874 * updated after OCR.
1875 *
1876 * set io timeout
1877 * set device queue depth
1878 * set nvme device properties. see - megasas_set_nvme_device_properties
1879 *
1880 * @sdev: scsi device
1881 * @is_target_prop true, if fw provided target properties.
1882 */
1883 static void megasas_set_static_target_properties(struct scsi_device *sdev,
1884 bool is_target_prop)
1885 {
1886 u16 target_index = 0;
1887 u8 interface_type;
1888 u32 device_qd = MEGASAS_DEFAULT_CMD_PER_LUN;
1889 u32 max_io_size_kb = MR_DEFAULT_NVME_MDTS_KB;
1890 u32 tgt_device_qd;
1891 struct megasas_instance *instance;
1892 struct MR_PRIV_DEVICE *mr_device_priv_data;
1893
1894 instance = megasas_lookup_instance(sdev->host->host_no);
1895 mr_device_priv_data = sdev->hostdata;
1896 interface_type = mr_device_priv_data->interface_type;
1897
1898 /*
1899 * The RAID firmware may require extended timeouts.
1900 */
1901 blk_queue_rq_timeout(sdev->request_queue, scmd_timeout * HZ);
1902
1903 target_index = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + sdev->id;
1904
1905 switch (interface_type) {
1906 case SAS_PD:
1907 device_qd = MEGASAS_SAS_QD;
1908 break;
1909 case SATA_PD:
1910 device_qd = MEGASAS_SATA_QD;
1911 break;
1912 case NVME_PD:
1913 device_qd = MEGASAS_NVME_QD;
1914 break;
1915 }
1916
1917 if (is_target_prop) {
1918 tgt_device_qd = le32_to_cpu(instance->tgt_prop->device_qdepth);
1919 if (tgt_device_qd &&
1920 (tgt_device_qd <= instance->host->can_queue))
1921 device_qd = tgt_device_qd;
1922
1923 /* max_io_size_kb will be set to non zero for
1924 * nvme based vd and syspd.
1925 */
1926 max_io_size_kb = le32_to_cpu(instance->tgt_prop->max_io_size_kb);
1927 }
1928
1929 if (instance->nvme_page_size && max_io_size_kb)
1930 megasas_set_nvme_device_properties(sdev, (max_io_size_kb << 10));
1931
1932 scsi_change_queue_depth(sdev, device_qd);
1933
1934 }
1935
1936
1937 static int megasas_slave_configure(struct scsi_device *sdev)
1938 {
1939 u16 pd_index = 0;
1940 struct megasas_instance *instance;
1941 int ret_target_prop = DCMD_FAILED;
1942 bool is_target_prop = false;
1943
1944 instance = megasas_lookup_instance(sdev->host->host_no);
1945 if (instance->pd_list_not_supported) {
1946 if (!MEGASAS_IS_LOGICAL(sdev) && sdev->type == TYPE_DISK) {
1947 pd_index = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) +
1948 sdev->id;
1949 if (instance->pd_list[pd_index].driveState !=
1950 MR_PD_STATE_SYSTEM)
1951 return -ENXIO;
1952 }
1953 }
1954
1955 mutex_lock(&instance->hba_mutex);
1956 /* Send DCMD to Firmware and cache the information */
1957 if ((instance->pd_info) && !MEGASAS_IS_LOGICAL(sdev))
1958 megasas_get_pd_info(instance, sdev);
1959
1960 /* Some ventura firmware may not have instance->nvme_page_size set.
1961 * Do not send MR_DCMD_DRV_GET_TARGET_PROP
1962 */
1963 if ((instance->tgt_prop) && (instance->nvme_page_size))
1964 ret_target_prop = megasas_get_target_prop(instance, sdev);
1965
1966 is_target_prop = (ret_target_prop == DCMD_SUCCESS) ? true : false;
1967 megasas_set_static_target_properties(sdev, is_target_prop);
1968
1969 mutex_unlock(&instance->hba_mutex);
1970
1971 /* This sdev property may change post OCR */
1972 megasas_set_dynamic_target_properties(sdev);
1973
1974 return 0;
1975 }
1976
1977 static int megasas_slave_alloc(struct scsi_device *sdev)
1978 {
1979 u16 pd_index = 0;
1980 struct megasas_instance *instance ;
1981 struct MR_PRIV_DEVICE *mr_device_priv_data;
1982
1983 instance = megasas_lookup_instance(sdev->host->host_no);
1984 if (!MEGASAS_IS_LOGICAL(sdev)) {
1985 /*
1986 * Open the OS scan to the SYSTEM PD
1987 */
1988 pd_index =
1989 (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) +
1990 sdev->id;
1991 if ((instance->pd_list_not_supported ||
1992 instance->pd_list[pd_index].driveState ==
1993 MR_PD_STATE_SYSTEM)) {
1994 goto scan_target;
1995 }
1996 return -ENXIO;
1997 }
1998
1999 scan_target:
2000 mr_device_priv_data = kzalloc(sizeof(*mr_device_priv_data),
2001 GFP_KERNEL);
2002 if (!mr_device_priv_data)
2003 return -ENOMEM;
2004 sdev->hostdata = mr_device_priv_data;
2005
2006 atomic_set(&mr_device_priv_data->r1_ldio_hint,
2007 instance->r1_ldio_hint_default);
2008 return 0;
2009 }
2010
2011 static void megasas_slave_destroy(struct scsi_device *sdev)
2012 {
2013 kfree(sdev->hostdata);
2014 sdev->hostdata = NULL;
2015 }
2016
2017 /*
2018 * megasas_complete_outstanding_ioctls - Complete outstanding ioctls after a
2019 * kill adapter
2020 * @instance: Adapter soft state
2021 *
2022 */
2023 static void megasas_complete_outstanding_ioctls(struct megasas_instance *instance)
2024 {
2025 int i;
2026 struct megasas_cmd *cmd_mfi;
2027 struct megasas_cmd_fusion *cmd_fusion;
2028 struct fusion_context *fusion = instance->ctrl_context;
2029
2030 /* Find all outstanding ioctls */
2031 if (fusion) {
2032 for (i = 0; i < instance->max_fw_cmds; i++) {
2033 cmd_fusion = fusion->cmd_list[i];
2034 if (cmd_fusion->sync_cmd_idx != (u32)ULONG_MAX) {
2035 cmd_mfi = instance->cmd_list[cmd_fusion->sync_cmd_idx];
2036 if (cmd_mfi->sync_cmd &&
2037 (cmd_mfi->frame->hdr.cmd != MFI_CMD_ABORT)) {
2038 cmd_mfi->frame->hdr.cmd_status =
2039 MFI_STAT_WRONG_STATE;
2040 megasas_complete_cmd(instance,
2041 cmd_mfi, DID_OK);
2042 }
2043 }
2044 }
2045 } else {
2046 for (i = 0; i < instance->max_fw_cmds; i++) {
2047 cmd_mfi = instance->cmd_list[i];
2048 if (cmd_mfi->sync_cmd && cmd_mfi->frame->hdr.cmd !=
2049 MFI_CMD_ABORT)
2050 megasas_complete_cmd(instance, cmd_mfi, DID_OK);
2051 }
2052 }
2053 }
2054
2055
2056 void megaraid_sas_kill_hba(struct megasas_instance *instance)
2057 {
2058 /* Set critical error to block I/O & ioctls in case caller didn't */
2059 atomic_set(&instance->adprecovery, MEGASAS_HW_CRITICAL_ERROR);
2060 /* Wait 1 second to ensure IO or ioctls in build have posted */
2061 msleep(1000);
2062 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
2063 (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY) ||
2064 (instance->adapter_type != MFI_SERIES)) {
2065 writel(MFI_STOP_ADP, &instance->reg_set->doorbell);
2066 /* Flush */
2067 readl(&instance->reg_set->doorbell);
2068 if (instance->requestorId && instance->peerIsPresent)
2069 memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS);
2070 } else {
2071 writel(MFI_STOP_ADP,
2072 &instance->reg_set->inbound_doorbell);
2073 }
2074 /* Complete outstanding ioctls when adapter is killed */
2075 megasas_complete_outstanding_ioctls(instance);
2076 }
2077
2078 /**
2079 * megasas_check_and_restore_queue_depth - Check if queue depth needs to be
2080 * restored to max value
2081 * @instance: Adapter soft state
2082 *
2083 */
2084 void
2085 megasas_check_and_restore_queue_depth(struct megasas_instance *instance)
2086 {
2087 unsigned long flags;
2088
2089 if (instance->flag & MEGASAS_FW_BUSY
2090 && time_after(jiffies, instance->last_time + 5 * HZ)
2091 && atomic_read(&instance->fw_outstanding) <
2092 instance->throttlequeuedepth + 1) {
2093
2094 spin_lock_irqsave(instance->host->host_lock, flags);
2095 instance->flag &= ~MEGASAS_FW_BUSY;
2096
2097 instance->host->can_queue = instance->cur_can_queue;
2098 spin_unlock_irqrestore(instance->host->host_lock, flags);
2099 }
2100 }
2101
2102 /**
2103 * megasas_complete_cmd_dpc - Returns FW's controller structure
2104 * @instance_addr: Address of adapter soft state
2105 *
2106 * Tasklet to complete cmds
2107 */
2108 static void megasas_complete_cmd_dpc(unsigned long instance_addr)
2109 {
2110 u32 producer;
2111 u32 consumer;
2112 u32 context;
2113 struct megasas_cmd *cmd;
2114 struct megasas_instance *instance =
2115 (struct megasas_instance *)instance_addr;
2116 unsigned long flags;
2117
2118 /* If we have already declared adapter dead, donot complete cmds */
2119 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR)
2120 return;
2121
2122 spin_lock_irqsave(&instance->completion_lock, flags);
2123
2124 producer = le32_to_cpu(*instance->producer);
2125 consumer = le32_to_cpu(*instance->consumer);
2126
2127 while (consumer != producer) {
2128 context = le32_to_cpu(instance->reply_queue[consumer]);
2129 if (context >= instance->max_fw_cmds) {
2130 dev_err(&instance->pdev->dev, "Unexpected context value %x\n",
2131 context);
2132 BUG();
2133 }
2134
2135 cmd = instance->cmd_list[context];
2136
2137 megasas_complete_cmd(instance, cmd, DID_OK);
2138
2139 consumer++;
2140 if (consumer == (instance->max_fw_cmds + 1)) {
2141 consumer = 0;
2142 }
2143 }
2144
2145 *instance->consumer = cpu_to_le32(producer);
2146
2147 spin_unlock_irqrestore(&instance->completion_lock, flags);
2148
2149 /*
2150 * Check if we can restore can_queue
2151 */
2152 megasas_check_and_restore_queue_depth(instance);
2153 }
2154
2155 static void megasas_sriov_heartbeat_handler(struct timer_list *t);
2156
2157 /**
2158 * megasas_start_timer - Initializes sriov heartbeat timer object
2159 * @instance: Adapter soft state
2160 *
2161 */
2162 void megasas_start_timer(struct megasas_instance *instance)
2163 {
2164 struct timer_list *timer = &instance->sriov_heartbeat_timer;
2165
2166 timer_setup(timer, megasas_sriov_heartbeat_handler, 0);
2167 timer->expires = jiffies + MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF;
2168 add_timer(timer);
2169 }
2170
2171 static void
2172 megasas_internal_reset_defer_cmds(struct megasas_instance *instance);
2173
2174 static void
2175 process_fw_state_change_wq(struct work_struct *work);
2176
2177 void megasas_do_ocr(struct megasas_instance *instance)
2178 {
2179 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS1064R) ||
2180 (instance->pdev->device == PCI_DEVICE_ID_DELL_PERC5) ||
2181 (instance->pdev->device == PCI_DEVICE_ID_LSI_VERDE_ZCR)) {
2182 *instance->consumer = cpu_to_le32(MEGASAS_ADPRESET_INPROG_SIGN);
2183 }
2184 instance->instancet->disable_intr(instance);
2185 atomic_set(&instance->adprecovery, MEGASAS_ADPRESET_SM_INFAULT);
2186 instance->issuepend_done = 0;
2187
2188 atomic_set(&instance->fw_outstanding, 0);
2189 megasas_internal_reset_defer_cmds(instance);
2190 process_fw_state_change_wq(&instance->work_init);
2191 }
2192
2193 static int megasas_get_ld_vf_affiliation_111(struct megasas_instance *instance,
2194 int initial)
2195 {
2196 struct megasas_cmd *cmd;
2197 struct megasas_dcmd_frame *dcmd;
2198 struct MR_LD_VF_AFFILIATION_111 *new_affiliation_111 = NULL;
2199 dma_addr_t new_affiliation_111_h;
2200 int ld, retval = 0;
2201 u8 thisVf;
2202
2203 cmd = megasas_get_cmd(instance);
2204
2205 if (!cmd) {
2206 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_vf_affiliation_111:"
2207 "Failed to get cmd for scsi%d\n",
2208 instance->host->host_no);
2209 return -ENOMEM;
2210 }
2211
2212 dcmd = &cmd->frame->dcmd;
2213
2214 if (!instance->vf_affiliation_111) {
2215 dev_warn(&instance->pdev->dev, "SR-IOV: Couldn't get LD/VF "
2216 "affiliation for scsi%d\n", instance->host->host_no);
2217 megasas_return_cmd(instance, cmd);
2218 return -ENOMEM;
2219 }
2220
2221 if (initial)
2222 memset(instance->vf_affiliation_111, 0,
2223 sizeof(struct MR_LD_VF_AFFILIATION_111));
2224 else {
2225 new_affiliation_111 =
2226 pci_alloc_consistent(instance->pdev,
2227 sizeof(struct MR_LD_VF_AFFILIATION_111),
2228 &new_affiliation_111_h);
2229 if (!new_affiliation_111) {
2230 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate "
2231 "memory for new affiliation for scsi%d\n",
2232 instance->host->host_no);
2233 megasas_return_cmd(instance, cmd);
2234 return -ENOMEM;
2235 }
2236 memset(new_affiliation_111, 0,
2237 sizeof(struct MR_LD_VF_AFFILIATION_111));
2238 }
2239
2240 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
2241
2242 dcmd->cmd = MFI_CMD_DCMD;
2243 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
2244 dcmd->sge_count = 1;
2245 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_BOTH);
2246 dcmd->timeout = 0;
2247 dcmd->pad_0 = 0;
2248 dcmd->data_xfer_len =
2249 cpu_to_le32(sizeof(struct MR_LD_VF_AFFILIATION_111));
2250 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_VF_MAP_GET_ALL_LDS_111);
2251
2252 if (initial)
2253 dcmd->sgl.sge32[0].phys_addr =
2254 cpu_to_le32(instance->vf_affiliation_111_h);
2255 else
2256 dcmd->sgl.sge32[0].phys_addr =
2257 cpu_to_le32(new_affiliation_111_h);
2258
2259 dcmd->sgl.sge32[0].length = cpu_to_le32(
2260 sizeof(struct MR_LD_VF_AFFILIATION_111));
2261
2262 dev_warn(&instance->pdev->dev, "SR-IOV: Getting LD/VF affiliation for "
2263 "scsi%d\n", instance->host->host_no);
2264
2265 if (megasas_issue_blocked_cmd(instance, cmd, 0) != DCMD_SUCCESS) {
2266 dev_warn(&instance->pdev->dev, "SR-IOV: LD/VF affiliation DCMD"
2267 " failed with status 0x%x for scsi%d\n",
2268 dcmd->cmd_status, instance->host->host_no);
2269 retval = 1; /* Do a scan if we couldn't get affiliation */
2270 goto out;
2271 }
2272
2273 if (!initial) {
2274 thisVf = new_affiliation_111->thisVf;
2275 for (ld = 0 ; ld < new_affiliation_111->vdCount; ld++)
2276 if (instance->vf_affiliation_111->map[ld].policy[thisVf] !=
2277 new_affiliation_111->map[ld].policy[thisVf]) {
2278 dev_warn(&instance->pdev->dev, "SR-IOV: "
2279 "Got new LD/VF affiliation for scsi%d\n",
2280 instance->host->host_no);
2281 memcpy(instance->vf_affiliation_111,
2282 new_affiliation_111,
2283 sizeof(struct MR_LD_VF_AFFILIATION_111));
2284 retval = 1;
2285 goto out;
2286 }
2287 }
2288 out:
2289 if (new_affiliation_111) {
2290 pci_free_consistent(instance->pdev,
2291 sizeof(struct MR_LD_VF_AFFILIATION_111),
2292 new_affiliation_111,
2293 new_affiliation_111_h);
2294 }
2295
2296 megasas_return_cmd(instance, cmd);
2297
2298 return retval;
2299 }
2300
2301 static int megasas_get_ld_vf_affiliation_12(struct megasas_instance *instance,
2302 int initial)
2303 {
2304 struct megasas_cmd *cmd;
2305 struct megasas_dcmd_frame *dcmd;
2306 struct MR_LD_VF_AFFILIATION *new_affiliation = NULL;
2307 struct MR_LD_VF_MAP *newmap = NULL, *savedmap = NULL;
2308 dma_addr_t new_affiliation_h;
2309 int i, j, retval = 0, found = 0, doscan = 0;
2310 u8 thisVf;
2311
2312 cmd = megasas_get_cmd(instance);
2313
2314 if (!cmd) {
2315 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_vf_affiliation12: "
2316 "Failed to get cmd for scsi%d\n",
2317 instance->host->host_no);
2318 return -ENOMEM;
2319 }
2320
2321 dcmd = &cmd->frame->dcmd;
2322
2323 if (!instance->vf_affiliation) {
2324 dev_warn(&instance->pdev->dev, "SR-IOV: Couldn't get LD/VF "
2325 "affiliation for scsi%d\n", instance->host->host_no);
2326 megasas_return_cmd(instance, cmd);
2327 return -ENOMEM;
2328 }
2329
2330 if (initial)
2331 memset(instance->vf_affiliation, 0, (MAX_LOGICAL_DRIVES + 1) *
2332 sizeof(struct MR_LD_VF_AFFILIATION));
2333 else {
2334 new_affiliation =
2335 pci_alloc_consistent(instance->pdev,
2336 (MAX_LOGICAL_DRIVES + 1) *
2337 sizeof(struct MR_LD_VF_AFFILIATION),
2338 &new_affiliation_h);
2339 if (!new_affiliation) {
2340 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate "
2341 "memory for new affiliation for scsi%d\n",
2342 instance->host->host_no);
2343 megasas_return_cmd(instance, cmd);
2344 return -ENOMEM;
2345 }
2346 memset(new_affiliation, 0, (MAX_LOGICAL_DRIVES + 1) *
2347 sizeof(struct MR_LD_VF_AFFILIATION));
2348 }
2349
2350 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
2351
2352 dcmd->cmd = MFI_CMD_DCMD;
2353 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
2354 dcmd->sge_count = 1;
2355 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_BOTH);
2356 dcmd->timeout = 0;
2357 dcmd->pad_0 = 0;
2358 dcmd->data_xfer_len = cpu_to_le32((MAX_LOGICAL_DRIVES + 1) *
2359 sizeof(struct MR_LD_VF_AFFILIATION));
2360 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_VF_MAP_GET_ALL_LDS);
2361
2362 if (initial)
2363 dcmd->sgl.sge32[0].phys_addr =
2364 cpu_to_le32(instance->vf_affiliation_h);
2365 else
2366 dcmd->sgl.sge32[0].phys_addr =
2367 cpu_to_le32(new_affiliation_h);
2368
2369 dcmd->sgl.sge32[0].length = cpu_to_le32((MAX_LOGICAL_DRIVES + 1) *
2370 sizeof(struct MR_LD_VF_AFFILIATION));
2371
2372 dev_warn(&instance->pdev->dev, "SR-IOV: Getting LD/VF affiliation for "
2373 "scsi%d\n", instance->host->host_no);
2374
2375
2376 if (megasas_issue_blocked_cmd(instance, cmd, 0) != DCMD_SUCCESS) {
2377 dev_warn(&instance->pdev->dev, "SR-IOV: LD/VF affiliation DCMD"
2378 " failed with status 0x%x for scsi%d\n",
2379 dcmd->cmd_status, instance->host->host_no);
2380 retval = 1; /* Do a scan if we couldn't get affiliation */
2381 goto out;
2382 }
2383
2384 if (!initial) {
2385 if (!new_affiliation->ldCount) {
2386 dev_warn(&instance->pdev->dev, "SR-IOV: Got new LD/VF "
2387 "affiliation for passive path for scsi%d\n",
2388 instance->host->host_no);
2389 retval = 1;
2390 goto out;
2391 }
2392 newmap = new_affiliation->map;
2393 savedmap = instance->vf_affiliation->map;
2394 thisVf = new_affiliation->thisVf;
2395 for (i = 0 ; i < new_affiliation->ldCount; i++) {
2396 found = 0;
2397 for (j = 0; j < instance->vf_affiliation->ldCount;
2398 j++) {
2399 if (newmap->ref.targetId ==
2400 savedmap->ref.targetId) {
2401 found = 1;
2402 if (newmap->policy[thisVf] !=
2403 savedmap->policy[thisVf]) {
2404 doscan = 1;
2405 goto out;
2406 }
2407 }
2408 savedmap = (struct MR_LD_VF_MAP *)
2409 ((unsigned char *)savedmap +
2410 savedmap->size);
2411 }
2412 if (!found && newmap->policy[thisVf] !=
2413 MR_LD_ACCESS_HIDDEN) {
2414 doscan = 1;
2415 goto out;
2416 }
2417 newmap = (struct MR_LD_VF_MAP *)
2418 ((unsigned char *)newmap + newmap->size);
2419 }
2420
2421 newmap = new_affiliation->map;
2422 savedmap = instance->vf_affiliation->map;
2423
2424 for (i = 0 ; i < instance->vf_affiliation->ldCount; i++) {
2425 found = 0;
2426 for (j = 0 ; j < new_affiliation->ldCount; j++) {
2427 if (savedmap->ref.targetId ==
2428 newmap->ref.targetId) {
2429 found = 1;
2430 if (savedmap->policy[thisVf] !=
2431 newmap->policy[thisVf]) {
2432 doscan = 1;
2433 goto out;
2434 }
2435 }
2436 newmap = (struct MR_LD_VF_MAP *)
2437 ((unsigned char *)newmap +
2438 newmap->size);
2439 }
2440 if (!found && savedmap->policy[thisVf] !=
2441 MR_LD_ACCESS_HIDDEN) {
2442 doscan = 1;
2443 goto out;
2444 }
2445 savedmap = (struct MR_LD_VF_MAP *)
2446 ((unsigned char *)savedmap +
2447 savedmap->size);
2448 }
2449 }
2450 out:
2451 if (doscan) {
2452 dev_warn(&instance->pdev->dev, "SR-IOV: Got new LD/VF "
2453 "affiliation for scsi%d\n", instance->host->host_no);
2454 memcpy(instance->vf_affiliation, new_affiliation,
2455 new_affiliation->size);
2456 retval = 1;
2457 }
2458
2459 if (new_affiliation)
2460 pci_free_consistent(instance->pdev,
2461 (MAX_LOGICAL_DRIVES + 1) *
2462 sizeof(struct MR_LD_VF_AFFILIATION),
2463 new_affiliation, new_affiliation_h);
2464 megasas_return_cmd(instance, cmd);
2465
2466 return retval;
2467 }
2468
2469 /* This function will get the current SR-IOV LD/VF affiliation */
2470 static int megasas_get_ld_vf_affiliation(struct megasas_instance *instance,
2471 int initial)
2472 {
2473 int retval;
2474
2475 if (instance->PlasmaFW111)
2476 retval = megasas_get_ld_vf_affiliation_111(instance, initial);
2477 else
2478 retval = megasas_get_ld_vf_affiliation_12(instance, initial);
2479 return retval;
2480 }
2481
2482 /* This function will tell FW to start the SR-IOV heartbeat */
2483 int megasas_sriov_start_heartbeat(struct megasas_instance *instance,
2484 int initial)
2485 {
2486 struct megasas_cmd *cmd;
2487 struct megasas_dcmd_frame *dcmd;
2488 int retval = 0;
2489
2490 cmd = megasas_get_cmd(instance);
2491
2492 if (!cmd) {
2493 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_sriov_start_heartbeat: "
2494 "Failed to get cmd for scsi%d\n",
2495 instance->host->host_no);
2496 return -ENOMEM;
2497 }
2498
2499 dcmd = &cmd->frame->dcmd;
2500
2501 if (initial) {
2502 instance->hb_host_mem =
2503 pci_zalloc_consistent(instance->pdev,
2504 sizeof(struct MR_CTRL_HB_HOST_MEM),
2505 &instance->hb_host_mem_h);
2506 if (!instance->hb_host_mem) {
2507 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate"
2508 " memory for heartbeat host memory for scsi%d\n",
2509 instance->host->host_no);
2510 retval = -ENOMEM;
2511 goto out;
2512 }
2513 }
2514
2515 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
2516
2517 dcmd->mbox.s[0] = cpu_to_le16(sizeof(struct MR_CTRL_HB_HOST_MEM));
2518 dcmd->cmd = MFI_CMD_DCMD;
2519 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
2520 dcmd->sge_count = 1;
2521 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_BOTH);
2522 dcmd->timeout = 0;
2523 dcmd->pad_0 = 0;
2524 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_CTRL_HB_HOST_MEM));
2525 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_SHARED_HOST_MEM_ALLOC);
2526
2527 megasas_set_dma_settings(instance, dcmd, instance->hb_host_mem_h,
2528 sizeof(struct MR_CTRL_HB_HOST_MEM));
2529
2530 dev_warn(&instance->pdev->dev, "SR-IOV: Starting heartbeat for scsi%d\n",
2531 instance->host->host_no);
2532
2533 if ((instance->adapter_type != MFI_SERIES) &&
2534 !instance->mask_interrupts)
2535 retval = megasas_issue_blocked_cmd(instance, cmd,
2536 MEGASAS_ROUTINE_WAIT_TIME_VF);
2537 else
2538 retval = megasas_issue_polled(instance, cmd);
2539
2540 if (retval) {
2541 dev_warn(&instance->pdev->dev, "SR-IOV: MR_DCMD_CTRL_SHARED_HOST"
2542 "_MEM_ALLOC DCMD %s for scsi%d\n",
2543 (dcmd->cmd_status == MFI_STAT_INVALID_STATUS) ?
2544 "timed out" : "failed", instance->host->host_no);
2545 retval = 1;
2546 }
2547
2548 out:
2549 megasas_return_cmd(instance, cmd);
2550
2551 return retval;
2552 }
2553
2554 /* Handler for SR-IOV heartbeat */
2555 static void megasas_sriov_heartbeat_handler(struct timer_list *t)
2556 {
2557 struct megasas_instance *instance =
2558 from_timer(instance, t, sriov_heartbeat_timer);
2559
2560 if (instance->hb_host_mem->HB.fwCounter !=
2561 instance->hb_host_mem->HB.driverCounter) {
2562 instance->hb_host_mem->HB.driverCounter =
2563 instance->hb_host_mem->HB.fwCounter;
2564 mod_timer(&instance->sriov_heartbeat_timer,
2565 jiffies + MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF);
2566 } else {
2567 dev_warn(&instance->pdev->dev, "SR-IOV: Heartbeat never "
2568 "completed for scsi%d\n", instance->host->host_no);
2569 schedule_work(&instance->work_init);
2570 }
2571 }
2572
2573 /**
2574 * megasas_wait_for_outstanding - Wait for all outstanding cmds
2575 * @instance: Adapter soft state
2576 *
2577 * This function waits for up to MEGASAS_RESET_WAIT_TIME seconds for FW to
2578 * complete all its outstanding commands. Returns error if one or more IOs
2579 * are pending after this time period. It also marks the controller dead.
2580 */
2581 static int megasas_wait_for_outstanding(struct megasas_instance *instance)
2582 {
2583 int i, sl, outstanding;
2584 u32 reset_index;
2585 u32 wait_time = MEGASAS_RESET_WAIT_TIME;
2586 unsigned long flags;
2587 struct list_head clist_local;
2588 struct megasas_cmd *reset_cmd;
2589 u32 fw_state;
2590
2591 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
2592 dev_info(&instance->pdev->dev, "%s:%d HBA is killed.\n",
2593 __func__, __LINE__);
2594 return FAILED;
2595 }
2596
2597 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) {
2598
2599 INIT_LIST_HEAD(&clist_local);
2600 spin_lock_irqsave(&instance->hba_lock, flags);
2601 list_splice_init(&instance->internal_reset_pending_q,
2602 &clist_local);
2603 spin_unlock_irqrestore(&instance->hba_lock, flags);
2604
2605 dev_notice(&instance->pdev->dev, "HBA reset wait ...\n");
2606 for (i = 0; i < wait_time; i++) {
2607 msleep(1000);
2608 if (atomic_read(&instance->adprecovery) == MEGASAS_HBA_OPERATIONAL)
2609 break;
2610 }
2611
2612 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) {
2613 dev_notice(&instance->pdev->dev, "reset: Stopping HBA.\n");
2614 atomic_set(&instance->adprecovery, MEGASAS_HW_CRITICAL_ERROR);
2615 return FAILED;
2616 }
2617
2618 reset_index = 0;
2619 while (!list_empty(&clist_local)) {
2620 reset_cmd = list_entry((&clist_local)->next,
2621 struct megasas_cmd, list);
2622 list_del_init(&reset_cmd->list);
2623 if (reset_cmd->scmd) {
2624 reset_cmd->scmd->result = DID_REQUEUE << 16;
2625 dev_notice(&instance->pdev->dev, "%d:%p reset [%02x]\n",
2626 reset_index, reset_cmd,
2627 reset_cmd->scmd->cmnd[0]);
2628
2629 reset_cmd->scmd->scsi_done(reset_cmd->scmd);
2630 megasas_return_cmd(instance, reset_cmd);
2631 } else if (reset_cmd->sync_cmd) {
2632 dev_notice(&instance->pdev->dev, "%p synch cmds"
2633 "reset queue\n",
2634 reset_cmd);
2635
2636 reset_cmd->cmd_status_drv = MFI_STAT_INVALID_STATUS;
2637 instance->instancet->fire_cmd(instance,
2638 reset_cmd->frame_phys_addr,
2639 0, instance->reg_set);
2640 } else {
2641 dev_notice(&instance->pdev->dev, "%p unexpected"
2642 "cmds lst\n",
2643 reset_cmd);
2644 }
2645 reset_index++;
2646 }
2647
2648 return SUCCESS;
2649 }
2650
2651 for (i = 0; i < resetwaittime; i++) {
2652 outstanding = atomic_read(&instance->fw_outstanding);
2653
2654 if (!outstanding)
2655 break;
2656
2657 if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) {
2658 dev_notice(&instance->pdev->dev, "[%2d]waiting for %d "
2659 "commands to complete\n",i,outstanding);
2660 /*
2661 * Call cmd completion routine. Cmd to be
2662 * be completed directly without depending on isr.
2663 */
2664 megasas_complete_cmd_dpc((unsigned long)instance);
2665 }
2666
2667 msleep(1000);
2668 }
2669
2670 i = 0;
2671 outstanding = atomic_read(&instance->fw_outstanding);
2672 fw_state = instance->instancet->read_fw_status_reg(instance->reg_set) & MFI_STATE_MASK;
2673
2674 if ((!outstanding && (fw_state == MFI_STATE_OPERATIONAL)))
2675 goto no_outstanding;
2676
2677 if (instance->disableOnlineCtrlReset)
2678 goto kill_hba_and_failed;
2679 do {
2680 if ((fw_state == MFI_STATE_FAULT) || atomic_read(&instance->fw_outstanding)) {
2681 dev_info(&instance->pdev->dev,
2682 "%s:%d waiting_for_outstanding: before issue OCR. FW state = 0x%x, oustanding 0x%x\n",
2683 __func__, __LINE__, fw_state, atomic_read(&instance->fw_outstanding));
2684 if (i == 3)
2685 goto kill_hba_and_failed;
2686 megasas_do_ocr(instance);
2687
2688 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
2689 dev_info(&instance->pdev->dev, "%s:%d OCR failed and HBA is killed.\n",
2690 __func__, __LINE__);
2691 return FAILED;
2692 }
2693 dev_info(&instance->pdev->dev, "%s:%d waiting_for_outstanding: after issue OCR.\n",
2694 __func__, __LINE__);
2695
2696 for (sl = 0; sl < 10; sl++)
2697 msleep(500);
2698
2699 outstanding = atomic_read(&instance->fw_outstanding);
2700
2701 fw_state = instance->instancet->read_fw_status_reg(instance->reg_set) & MFI_STATE_MASK;
2702 if ((!outstanding && (fw_state == MFI_STATE_OPERATIONAL)))
2703 goto no_outstanding;
2704 }
2705 i++;
2706 } while (i <= 3);
2707
2708 no_outstanding:
2709
2710 dev_info(&instance->pdev->dev, "%s:%d no more pending commands remain after reset handling.\n",
2711 __func__, __LINE__);
2712 return SUCCESS;
2713
2714 kill_hba_and_failed:
2715
2716 /* Reset not supported, kill adapter */
2717 dev_info(&instance->pdev->dev, "%s:%d killing adapter scsi%d"
2718 " disableOnlineCtrlReset %d fw_outstanding %d \n",
2719 __func__, __LINE__, instance->host->host_no, instance->disableOnlineCtrlReset,
2720 atomic_read(&instance->fw_outstanding));
2721 megasas_dump_pending_frames(instance);
2722 megaraid_sas_kill_hba(instance);
2723
2724 return FAILED;
2725 }
2726
2727 /**
2728 * megasas_generic_reset - Generic reset routine
2729 * @scmd: Mid-layer SCSI command
2730 *
2731 * This routine implements a generic reset handler for device, bus and host
2732 * reset requests. Device, bus and host specific reset handlers can use this
2733 * function after they do their specific tasks.
2734 */
2735 static int megasas_generic_reset(struct scsi_cmnd *scmd)
2736 {
2737 int ret_val;
2738 struct megasas_instance *instance;
2739
2740 instance = (struct megasas_instance *)scmd->device->host->hostdata;
2741
2742 scmd_printk(KERN_NOTICE, scmd, "megasas: RESET cmd=%x retries=%x\n",
2743 scmd->cmnd[0], scmd->retries);
2744
2745 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
2746 dev_err(&instance->pdev->dev, "cannot recover from previous reset failures\n");
2747 return FAILED;
2748 }
2749
2750 ret_val = megasas_wait_for_outstanding(instance);
2751 if (ret_val == SUCCESS)
2752 dev_notice(&instance->pdev->dev, "reset successful\n");
2753 else
2754 dev_err(&instance->pdev->dev, "failed to do reset\n");
2755
2756 return ret_val;
2757 }
2758
2759 /**
2760 * megasas_reset_timer - quiesce the adapter if required
2761 * @scmd: scsi cmnd
2762 *
2763 * Sets the FW busy flag and reduces the host->can_queue if the
2764 * cmd has not been completed within the timeout period.
2765 */
2766 static enum
2767 blk_eh_timer_return megasas_reset_timer(struct scsi_cmnd *scmd)
2768 {
2769 struct megasas_instance *instance;
2770 unsigned long flags;
2771
2772 if (time_after(jiffies, scmd->jiffies_at_alloc +
2773 (scmd_timeout * 2) * HZ)) {
2774 return BLK_EH_NOT_HANDLED;
2775 }
2776
2777 instance = (struct megasas_instance *)scmd->device->host->hostdata;
2778 if (!(instance->flag & MEGASAS_FW_BUSY)) {
2779 /* FW is busy, throttle IO */
2780 spin_lock_irqsave(instance->host->host_lock, flags);
2781
2782 instance->host->can_queue = instance->throttlequeuedepth;
2783 instance->last_time = jiffies;
2784 instance->flag |= MEGASAS_FW_BUSY;
2785
2786 spin_unlock_irqrestore(instance->host->host_lock, flags);
2787 }
2788 return BLK_EH_RESET_TIMER;
2789 }
2790
2791 /**
2792 * megasas_dump_frame - This function will dump MPT/MFI frame
2793 */
2794 static inline void
2795 megasas_dump_frame(void *mpi_request, int sz)
2796 {
2797 int i;
2798 __le32 *mfp = (__le32 *)mpi_request;
2799
2800 printk(KERN_INFO "IO request frame:\n\t");
2801 for (i = 0; i < sz / sizeof(__le32); i++) {
2802 if (i && ((i % 8) == 0))
2803 printk("\n\t");
2804 printk("%08x ", le32_to_cpu(mfp[i]));
2805 }
2806 printk("\n");
2807 }
2808
2809 /**
2810 * megasas_reset_bus_host - Bus & host reset handler entry point
2811 */
2812 static int megasas_reset_bus_host(struct scsi_cmnd *scmd)
2813 {
2814 int ret;
2815 struct megasas_instance *instance;
2816
2817 instance = (struct megasas_instance *)scmd->device->host->hostdata;
2818
2819 scmd_printk(KERN_INFO, scmd,
2820 "Controller reset is requested due to IO timeout\n"
2821 "SCSI command pointer: (%p)\t SCSI host state: %d\t"
2822 " SCSI host busy: %d\t FW outstanding: %d\n",
2823 scmd, scmd->device->host->shost_state,
2824 atomic_read((atomic_t *)&scmd->device->host->host_busy),
2825 atomic_read(&instance->fw_outstanding));
2826
2827 /*
2828 * First wait for all commands to complete
2829 */
2830 if (instance->adapter_type == MFI_SERIES) {
2831 ret = megasas_generic_reset(scmd);
2832 } else {
2833 struct megasas_cmd_fusion *cmd;
2834 cmd = (struct megasas_cmd_fusion *)scmd->SCp.ptr;
2835 if (cmd)
2836 megasas_dump_frame(cmd->io_request,
2837 MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE);
2838 ret = megasas_reset_fusion(scmd->device->host,
2839 SCSIIO_TIMEOUT_OCR);
2840 }
2841
2842 return ret;
2843 }
2844
2845 /**
2846 * megasas_task_abort - Issues task abort request to firmware
2847 * (supported only for fusion adapters)
2848 * @scmd: SCSI command pointer
2849 */
2850 static int megasas_task_abort(struct scsi_cmnd *scmd)
2851 {
2852 int ret;
2853 struct megasas_instance *instance;
2854
2855 instance = (struct megasas_instance *)scmd->device->host->hostdata;
2856
2857 if (instance->adapter_type != MFI_SERIES)
2858 ret = megasas_task_abort_fusion(scmd);
2859 else {
2860 sdev_printk(KERN_NOTICE, scmd->device, "TASK ABORT not supported\n");
2861 ret = FAILED;
2862 }
2863
2864 return ret;
2865 }
2866
2867 /**
2868 * megasas_reset_target: Issues target reset request to firmware
2869 * (supported only for fusion adapters)
2870 * @scmd: SCSI command pointer
2871 */
2872 static int megasas_reset_target(struct scsi_cmnd *scmd)
2873 {
2874 int ret;
2875 struct megasas_instance *instance;
2876
2877 instance = (struct megasas_instance *)scmd->device->host->hostdata;
2878
2879 if (instance->adapter_type != MFI_SERIES)
2880 ret = megasas_reset_target_fusion(scmd);
2881 else {
2882 sdev_printk(KERN_NOTICE, scmd->device, "TARGET RESET not supported\n");
2883 ret = FAILED;
2884 }
2885
2886 return ret;
2887 }
2888
2889 /**
2890 * megasas_bios_param - Returns disk geometry for a disk
2891 * @sdev: device handle
2892 * @bdev: block device
2893 * @capacity: drive capacity
2894 * @geom: geometry parameters
2895 */
2896 static int
2897 megasas_bios_param(struct scsi_device *sdev, struct block_device *bdev,
2898 sector_t capacity, int geom[])
2899 {
2900 int heads;
2901 int sectors;
2902 sector_t cylinders;
2903 unsigned long tmp;
2904
2905 /* Default heads (64) & sectors (32) */
2906 heads = 64;
2907 sectors = 32;
2908
2909 tmp = heads * sectors;
2910 cylinders = capacity;
2911
2912 sector_div(cylinders, tmp);
2913
2914 /*
2915 * Handle extended translation size for logical drives > 1Gb
2916 */
2917
2918 if (capacity >= 0x200000) {
2919 heads = 255;
2920 sectors = 63;
2921 tmp = heads*sectors;
2922 cylinders = capacity;
2923 sector_div(cylinders, tmp);
2924 }
2925
2926 geom[0] = heads;
2927 geom[1] = sectors;
2928 geom[2] = cylinders;
2929
2930 return 0;
2931 }
2932
2933 static void megasas_aen_polling(struct work_struct *work);
2934
2935 /**
2936 * megasas_service_aen - Processes an event notification
2937 * @instance: Adapter soft state
2938 * @cmd: AEN command completed by the ISR
2939 *
2940 * For AEN, driver sends a command down to FW that is held by the FW till an
2941 * event occurs. When an event of interest occurs, FW completes the command
2942 * that it was previously holding.
2943 *
2944 * This routines sends SIGIO signal to processes that have registered with the
2945 * driver for AEN.
2946 */
2947 static void
2948 megasas_service_aen(struct megasas_instance *instance, struct megasas_cmd *cmd)
2949 {
2950 unsigned long flags;
2951
2952 /*
2953 * Don't signal app if it is just an aborted previously registered aen
2954 */
2955 if ((!cmd->abort_aen) && (instance->unload == 0)) {
2956 spin_lock_irqsave(&poll_aen_lock, flags);
2957 megasas_poll_wait_aen = 1;
2958 spin_unlock_irqrestore(&poll_aen_lock, flags);
2959 wake_up(&megasas_poll_wait);
2960 kill_fasync(&megasas_async_queue, SIGIO, POLL_IN);
2961 }
2962 else
2963 cmd->abort_aen = 0;
2964
2965 instance->aen_cmd = NULL;
2966
2967 megasas_return_cmd(instance, cmd);
2968
2969 if ((instance->unload == 0) &&
2970 ((instance->issuepend_done == 1))) {
2971 struct megasas_aen_event *ev;
2972
2973 ev = kzalloc(sizeof(*ev), GFP_ATOMIC);
2974 if (!ev) {
2975 dev_err(&instance->pdev->dev, "megasas_service_aen: out of memory\n");
2976 } else {
2977 ev->instance = instance;
2978 instance->ev = ev;
2979 INIT_DELAYED_WORK(&ev->hotplug_work,
2980 megasas_aen_polling);
2981 schedule_delayed_work(&ev->hotplug_work, 0);
2982 }
2983 }
2984 }
2985
2986 static ssize_t
2987 megasas_fw_crash_buffer_store(struct device *cdev,
2988 struct device_attribute *attr, const char *buf, size_t count)
2989 {
2990 struct Scsi_Host *shost = class_to_shost(cdev);
2991 struct megasas_instance *instance =
2992 (struct megasas_instance *) shost->hostdata;
2993 int val = 0;
2994 unsigned long flags;
2995
2996 if (kstrtoint(buf, 0, &val) != 0)
2997 return -EINVAL;
2998
2999 spin_lock_irqsave(&instance->crashdump_lock, flags);
3000 instance->fw_crash_buffer_offset = val;
3001 spin_unlock_irqrestore(&instance->crashdump_lock, flags);
3002 return strlen(buf);
3003 }
3004
3005 static ssize_t
3006 megasas_fw_crash_buffer_show(struct device *cdev,
3007 struct device_attribute *attr, char *buf)
3008 {
3009 struct Scsi_Host *shost = class_to_shost(cdev);
3010 struct megasas_instance *instance =
3011 (struct megasas_instance *) shost->hostdata;
3012 u32 size;
3013 unsigned long buff_addr;
3014 unsigned long dmachunk = CRASH_DMA_BUF_SIZE;
3015 unsigned long src_addr;
3016 unsigned long flags;
3017 u32 buff_offset;
3018
3019 spin_lock_irqsave(&instance->crashdump_lock, flags);
3020 buff_offset = instance->fw_crash_buffer_offset;
3021 if (!instance->crash_dump_buf &&
3022 !((instance->fw_crash_state == AVAILABLE) ||
3023 (instance->fw_crash_state == COPYING))) {
3024 dev_err(&instance->pdev->dev,
3025 "Firmware crash dump is not available\n");
3026 spin_unlock_irqrestore(&instance->crashdump_lock, flags);
3027 return -EINVAL;
3028 }
3029
3030 buff_addr = (unsigned long) buf;
3031
3032 if (buff_offset > (instance->fw_crash_buffer_size * dmachunk)) {
3033 dev_err(&instance->pdev->dev,
3034 "Firmware crash dump offset is out of range\n");
3035 spin_unlock_irqrestore(&instance->crashdump_lock, flags);
3036 return 0;
3037 }
3038
3039 size = (instance->fw_crash_buffer_size * dmachunk) - buff_offset;
3040 size = (size >= PAGE_SIZE) ? (PAGE_SIZE - 1) : size;
3041
3042 src_addr = (unsigned long)instance->crash_buf[buff_offset / dmachunk] +
3043 (buff_offset % dmachunk);
3044 memcpy(buf, (void *)src_addr, size);
3045 spin_unlock_irqrestore(&instance->crashdump_lock, flags);
3046
3047 return size;
3048 }
3049
3050 static ssize_t
3051 megasas_fw_crash_buffer_size_show(struct device *cdev,
3052 struct device_attribute *attr, char *buf)
3053 {
3054 struct Scsi_Host *shost = class_to_shost(cdev);
3055 struct megasas_instance *instance =
3056 (struct megasas_instance *) shost->hostdata;
3057
3058 return snprintf(buf, PAGE_SIZE, "%ld\n", (unsigned long)
3059 ((instance->fw_crash_buffer_size) * 1024 * 1024)/PAGE_SIZE);
3060 }
3061
3062 static ssize_t
3063 megasas_fw_crash_state_store(struct device *cdev,
3064 struct device_attribute *attr, const char *buf, size_t count)
3065 {
3066 struct Scsi_Host *shost = class_to_shost(cdev);
3067 struct megasas_instance *instance =
3068 (struct megasas_instance *) shost->hostdata;
3069 int val = 0;
3070 unsigned long flags;
3071
3072 if (kstrtoint(buf, 0, &val) != 0)
3073 return -EINVAL;
3074
3075 if ((val <= AVAILABLE || val > COPY_ERROR)) {
3076 dev_err(&instance->pdev->dev, "application updates invalid "
3077 "firmware crash state\n");
3078 return -EINVAL;
3079 }
3080
3081 instance->fw_crash_state = val;
3082
3083 if ((val == COPIED) || (val == COPY_ERROR)) {
3084 spin_lock_irqsave(&instance->crashdump_lock, flags);
3085 megasas_free_host_crash_buffer(instance);
3086 spin_unlock_irqrestore(&instance->crashdump_lock, flags);
3087 if (val == COPY_ERROR)
3088 dev_info(&instance->pdev->dev, "application failed to "
3089 "copy Firmware crash dump\n");
3090 else
3091 dev_info(&instance->pdev->dev, "Firmware crash dump "
3092 "copied successfully\n");
3093 }
3094 return strlen(buf);
3095 }
3096
3097 static ssize_t
3098 megasas_fw_crash_state_show(struct device *cdev,
3099 struct device_attribute *attr, char *buf)
3100 {
3101 struct Scsi_Host *shost = class_to_shost(cdev);
3102 struct megasas_instance *instance =
3103 (struct megasas_instance *) shost->hostdata;
3104
3105 return snprintf(buf, PAGE_SIZE, "%d\n", instance->fw_crash_state);
3106 }
3107
3108 static ssize_t
3109 megasas_page_size_show(struct device *cdev,
3110 struct device_attribute *attr, char *buf)
3111 {
3112 return snprintf(buf, PAGE_SIZE, "%ld\n", (unsigned long)PAGE_SIZE - 1);
3113 }
3114
3115 static ssize_t
3116 megasas_ldio_outstanding_show(struct device *cdev, struct device_attribute *attr,
3117 char *buf)
3118 {
3119 struct Scsi_Host *shost = class_to_shost(cdev);
3120 struct megasas_instance *instance = (struct megasas_instance *)shost->hostdata;
3121
3122 return snprintf(buf, PAGE_SIZE, "%d\n", atomic_read(&instance->ldio_outstanding));
3123 }
3124
3125 static DEVICE_ATTR(fw_crash_buffer, S_IRUGO | S_IWUSR,
3126 megasas_fw_crash_buffer_show, megasas_fw_crash_buffer_store);
3127 static DEVICE_ATTR(fw_crash_buffer_size, S_IRUGO,
3128 megasas_fw_crash_buffer_size_show, NULL);
3129 static DEVICE_ATTR(fw_crash_state, S_IRUGO | S_IWUSR,
3130 megasas_fw_crash_state_show, megasas_fw_crash_state_store);
3131 static DEVICE_ATTR(page_size, S_IRUGO,
3132 megasas_page_size_show, NULL);
3133 static DEVICE_ATTR(ldio_outstanding, S_IRUGO,
3134 megasas_ldio_outstanding_show, NULL);
3135
3136 struct device_attribute *megaraid_host_attrs[] = {
3137 &dev_attr_fw_crash_buffer_size,
3138 &dev_attr_fw_crash_buffer,
3139 &dev_attr_fw_crash_state,
3140 &dev_attr_page_size,
3141 &dev_attr_ldio_outstanding,
3142 NULL,
3143 };
3144
3145 /*
3146 * Scsi host template for megaraid_sas driver
3147 */
3148 static struct scsi_host_template megasas_template = {
3149
3150 .module = THIS_MODULE,
3151 .name = "Avago SAS based MegaRAID driver",
3152 .proc_name = "megaraid_sas",
3153 .slave_configure = megasas_slave_configure,
3154 .slave_alloc = megasas_slave_alloc,
3155 .slave_destroy = megasas_slave_destroy,
3156 .queuecommand = megasas_queue_command,
3157 .eh_target_reset_handler = megasas_reset_target,
3158 .eh_abort_handler = megasas_task_abort,
3159 .eh_host_reset_handler = megasas_reset_bus_host,
3160 .eh_timed_out = megasas_reset_timer,
3161 .shost_attrs = megaraid_host_attrs,
3162 .bios_param = megasas_bios_param,
3163 .use_clustering = ENABLE_CLUSTERING,
3164 .change_queue_depth = scsi_change_queue_depth,
3165 .no_write_same = 1,
3166 };
3167
3168 /**
3169 * megasas_complete_int_cmd - Completes an internal command
3170 * @instance: Adapter soft state
3171 * @cmd: Command to be completed
3172 *
3173 * The megasas_issue_blocked_cmd() function waits for a command to complete
3174 * after it issues a command. This function wakes up that waiting routine by
3175 * calling wake_up() on the wait queue.
3176 */
3177 static void
3178 megasas_complete_int_cmd(struct megasas_instance *instance,
3179 struct megasas_cmd *cmd)
3180 {
3181 cmd->cmd_status_drv = cmd->frame->io.cmd_status;
3182 wake_up(&instance->int_cmd_wait_q);
3183 }
3184
3185 /**
3186 * megasas_complete_abort - Completes aborting a command
3187 * @instance: Adapter soft state
3188 * @cmd: Cmd that was issued to abort another cmd
3189 *
3190 * The megasas_issue_blocked_abort_cmd() function waits on abort_cmd_wait_q
3191 * after it issues an abort on a previously issued command. This function
3192 * wakes up all functions waiting on the same wait queue.
3193 */
3194 static void
3195 megasas_complete_abort(struct megasas_instance *instance,
3196 struct megasas_cmd *cmd)
3197 {
3198 if (cmd->sync_cmd) {
3199 cmd->sync_cmd = 0;
3200 cmd->cmd_status_drv = 0;
3201 wake_up(&instance->abort_cmd_wait_q);
3202 }
3203 }
3204
3205 /**
3206 * megasas_complete_cmd - Completes a command
3207 * @instance: Adapter soft state
3208 * @cmd: Command to be completed
3209 * @alt_status: If non-zero, use this value as status to
3210 * SCSI mid-layer instead of the value returned
3211 * by the FW. This should be used if caller wants
3212 * an alternate status (as in the case of aborted
3213 * commands)
3214 */
3215 void
3216 megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd,
3217 u8 alt_status)
3218 {
3219 int exception = 0;
3220 struct megasas_header *hdr = &cmd->frame->hdr;
3221 unsigned long flags;
3222 struct fusion_context *fusion = instance->ctrl_context;
3223 u32 opcode, status;
3224
3225 /* flag for the retry reset */
3226 cmd->retry_for_fw_reset = 0;
3227
3228 if (cmd->scmd)
3229 cmd->scmd->SCp.ptr = NULL;
3230
3231 switch (hdr->cmd) {
3232 case MFI_CMD_INVALID:
3233 /* Some older 1068 controller FW may keep a pended
3234 MR_DCMD_CTRL_EVENT_GET_INFO left over from the main kernel
3235 when booting the kdump kernel. Ignore this command to
3236 prevent a kernel panic on shutdown of the kdump kernel. */
3237 dev_warn(&instance->pdev->dev, "MFI_CMD_INVALID command "
3238 "completed\n");
3239 dev_warn(&instance->pdev->dev, "If you have a controller "
3240 "other than PERC5, please upgrade your firmware\n");
3241 break;
3242 case MFI_CMD_PD_SCSI_IO:
3243 case MFI_CMD_LD_SCSI_IO:
3244
3245 /*
3246 * MFI_CMD_PD_SCSI_IO and MFI_CMD_LD_SCSI_IO could have been
3247 * issued either through an IO path or an IOCTL path. If it
3248 * was via IOCTL, we will send it to internal completion.
3249 */
3250 if (cmd->sync_cmd) {
3251 cmd->sync_cmd = 0;
3252 megasas_complete_int_cmd(instance, cmd);
3253 break;
3254 }
3255
3256 case MFI_CMD_LD_READ:
3257 case MFI_CMD_LD_WRITE:
3258
3259 if (alt_status) {
3260 cmd->scmd->result = alt_status << 16;
3261 exception = 1;
3262 }
3263
3264 if (exception) {
3265
3266 atomic_dec(&instance->fw_outstanding);
3267
3268 scsi_dma_unmap(cmd->scmd);
3269 cmd->scmd->scsi_done(cmd->scmd);
3270 megasas_return_cmd(instance, cmd);
3271
3272 break;
3273 }
3274
3275 switch (hdr->cmd_status) {
3276
3277 case MFI_STAT_OK:
3278 cmd->scmd->result = DID_OK << 16;
3279 break;
3280
3281 case MFI_STAT_SCSI_IO_FAILED:
3282 case MFI_STAT_LD_INIT_IN_PROGRESS:
3283 cmd->scmd->result =
3284 (DID_ERROR << 16) | hdr->scsi_status;
3285 break;
3286
3287 case MFI_STAT_SCSI_DONE_WITH_ERROR:
3288
3289 cmd->scmd->result = (DID_OK << 16) | hdr->scsi_status;
3290
3291 if (hdr->scsi_status == SAM_STAT_CHECK_CONDITION) {
3292 memset(cmd->scmd->sense_buffer, 0,
3293 SCSI_SENSE_BUFFERSIZE);
3294 memcpy(cmd->scmd->sense_buffer, cmd->sense,
3295 hdr->sense_len);
3296
3297 cmd->scmd->result |= DRIVER_SENSE << 24;
3298 }
3299
3300 break;
3301
3302 case MFI_STAT_LD_OFFLINE:
3303 case MFI_STAT_DEVICE_NOT_FOUND:
3304 cmd->scmd->result = DID_BAD_TARGET << 16;
3305 break;
3306
3307 default:
3308 dev_printk(KERN_DEBUG, &instance->pdev->dev, "MFI FW status %#x\n",
3309 hdr->cmd_status);
3310 cmd->scmd->result = DID_ERROR << 16;
3311 break;
3312 }
3313
3314 atomic_dec(&instance->fw_outstanding);
3315
3316 scsi_dma_unmap(cmd->scmd);
3317 cmd->scmd->scsi_done(cmd->scmd);
3318 megasas_return_cmd(instance, cmd);
3319
3320 break;
3321
3322 case MFI_CMD_SMP:
3323 case MFI_CMD_STP:
3324 megasas_complete_int_cmd(instance, cmd);
3325 break;
3326
3327 case MFI_CMD_DCMD:
3328 opcode = le32_to_cpu(cmd->frame->dcmd.opcode);
3329 /* Check for LD map update */
3330 if ((opcode == MR_DCMD_LD_MAP_GET_INFO)
3331 && (cmd->frame->dcmd.mbox.b[1] == 1)) {
3332 fusion->fast_path_io = 0;
3333 spin_lock_irqsave(instance->host->host_lock, flags);
3334 instance->map_update_cmd = NULL;
3335 if (cmd->frame->hdr.cmd_status != 0) {
3336 if (cmd->frame->hdr.cmd_status !=
3337 MFI_STAT_NOT_FOUND)
3338 dev_warn(&instance->pdev->dev, "map syncfailed, status = 0x%x\n",
3339 cmd->frame->hdr.cmd_status);
3340 else {
3341 megasas_return_cmd(instance, cmd);
3342 spin_unlock_irqrestore(
3343 instance->host->host_lock,
3344 flags);
3345 break;
3346 }
3347 } else
3348 instance->map_id++;
3349 megasas_return_cmd(instance, cmd);
3350
3351 /*
3352 * Set fast path IO to ZERO.
3353 * Validate Map will set proper value.
3354 * Meanwhile all IOs will go as LD IO.
3355 */
3356 if (MR_ValidateMapInfo(instance))
3357 fusion->fast_path_io = 1;
3358 else
3359 fusion->fast_path_io = 0;
3360 megasas_sync_map_info(instance);
3361 spin_unlock_irqrestore(instance->host->host_lock,
3362 flags);
3363 break;
3364 }
3365 if (opcode == MR_DCMD_CTRL_EVENT_GET_INFO ||
3366 opcode == MR_DCMD_CTRL_EVENT_GET) {
3367 spin_lock_irqsave(&poll_aen_lock, flags);
3368 megasas_poll_wait_aen = 0;
3369 spin_unlock_irqrestore(&poll_aen_lock, flags);
3370 }
3371
3372 /* FW has an updated PD sequence */
3373 if ((opcode == MR_DCMD_SYSTEM_PD_MAP_GET_INFO) &&
3374 (cmd->frame->dcmd.mbox.b[0] == 1)) {
3375
3376 spin_lock_irqsave(instance->host->host_lock, flags);
3377 status = cmd->frame->hdr.cmd_status;
3378 instance->jbod_seq_cmd = NULL;
3379 megasas_return_cmd(instance, cmd);
3380
3381 if (status == MFI_STAT_OK) {
3382 instance->pd_seq_map_id++;
3383 /* Re-register a pd sync seq num cmd */
3384 if (megasas_sync_pd_seq_num(instance, true))
3385 instance->use_seqnum_jbod_fp = false;
3386 } else
3387 instance->use_seqnum_jbod_fp = false;
3388
3389 spin_unlock_irqrestore(instance->host->host_lock, flags);
3390 break;
3391 }
3392
3393 /*
3394 * See if got an event notification
3395 */
3396 if (opcode == MR_DCMD_CTRL_EVENT_WAIT)
3397 megasas_service_aen(instance, cmd);
3398 else
3399 megasas_complete_int_cmd(instance, cmd);
3400
3401 break;
3402
3403 case MFI_CMD_ABORT:
3404 /*
3405 * Cmd issued to abort another cmd returned
3406 */
3407 megasas_complete_abort(instance, cmd);
3408 break;
3409
3410 default:
3411 dev_info(&instance->pdev->dev, "Unknown command completed! [0x%X]\n",
3412 hdr->cmd);
3413 megasas_complete_int_cmd(instance, cmd);
3414 break;
3415 }
3416 }
3417
3418 /**
3419 * megasas_issue_pending_cmds_again - issue all pending cmds
3420 * in FW again because of the fw reset
3421 * @instance: Adapter soft state
3422 */
3423 static inline void
3424 megasas_issue_pending_cmds_again(struct megasas_instance *instance)
3425 {
3426 struct megasas_cmd *cmd;
3427 struct list_head clist_local;
3428 union megasas_evt_class_locale class_locale;
3429 unsigned long flags;
3430 u32 seq_num;
3431
3432 INIT_LIST_HEAD(&clist_local);
3433 spin_lock_irqsave(&instance->hba_lock, flags);
3434 list_splice_init(&instance->internal_reset_pending_q, &clist_local);
3435 spin_unlock_irqrestore(&instance->hba_lock, flags);
3436
3437 while (!list_empty(&clist_local)) {
3438 cmd = list_entry((&clist_local)->next,
3439 struct megasas_cmd, list);
3440 list_del_init(&cmd->list);
3441
3442 if (cmd->sync_cmd || cmd->scmd) {
3443 dev_notice(&instance->pdev->dev, "command %p, %p:%d"
3444 "detected to be pending while HBA reset\n",
3445 cmd, cmd->scmd, cmd->sync_cmd);
3446
3447 cmd->retry_for_fw_reset++;
3448
3449 if (cmd->retry_for_fw_reset == 3) {
3450 dev_notice(&instance->pdev->dev, "cmd %p, %p:%d"
3451 "was tried multiple times during reset."
3452 "Shutting down the HBA\n",
3453 cmd, cmd->scmd, cmd->sync_cmd);
3454 instance->instancet->disable_intr(instance);
3455 atomic_set(&instance->fw_reset_no_pci_access, 1);
3456 megaraid_sas_kill_hba(instance);
3457 return;
3458 }
3459 }
3460
3461 if (cmd->sync_cmd == 1) {
3462 if (cmd->scmd) {
3463 dev_notice(&instance->pdev->dev, "unexpected"
3464 "cmd attached to internal command!\n");
3465 }
3466 dev_notice(&instance->pdev->dev, "%p synchronous cmd"
3467 "on the internal reset queue,"
3468 "issue it again.\n", cmd);
3469 cmd->cmd_status_drv = MFI_STAT_INVALID_STATUS;
3470 instance->instancet->fire_cmd(instance,
3471 cmd->frame_phys_addr,
3472 0, instance->reg_set);
3473 } else if (cmd->scmd) {
3474 dev_notice(&instance->pdev->dev, "%p scsi cmd [%02x]"
3475 "detected on the internal queue, issue again.\n",
3476 cmd, cmd->scmd->cmnd[0]);
3477
3478 atomic_inc(&instance->fw_outstanding);
3479 instance->instancet->fire_cmd(instance,
3480 cmd->frame_phys_addr,
3481 cmd->frame_count-1, instance->reg_set);
3482 } else {
3483 dev_notice(&instance->pdev->dev, "%p unexpected cmd on the"
3484 "internal reset defer list while re-issue!!\n",
3485 cmd);
3486 }
3487 }
3488
3489 if (instance->aen_cmd) {
3490 dev_notice(&instance->pdev->dev, "aen_cmd in def process\n");
3491 megasas_return_cmd(instance, instance->aen_cmd);
3492
3493 instance->aen_cmd = NULL;
3494 }
3495
3496 /*
3497 * Initiate AEN (Asynchronous Event Notification)
3498 */
3499 seq_num = instance->last_seq_num;
3500 class_locale.members.reserved = 0;
3501 class_locale.members.locale = MR_EVT_LOCALE_ALL;
3502 class_locale.members.class = MR_EVT_CLASS_DEBUG;
3503
3504 megasas_register_aen(instance, seq_num, class_locale.word);
3505 }
3506
3507 /**
3508 * Move the internal reset pending commands to a deferred queue.
3509 *
3510 * We move the commands pending at internal reset time to a
3511 * pending queue. This queue would be flushed after successful
3512 * completion of the internal reset sequence. if the internal reset
3513 * did not complete in time, the kernel reset handler would flush
3514 * these commands.
3515 **/
3516 static void
3517 megasas_internal_reset_defer_cmds(struct megasas_instance *instance)
3518 {
3519 struct megasas_cmd *cmd;
3520 int i;
3521 u16 max_cmd = instance->max_fw_cmds;
3522 u32 defer_index;
3523 unsigned long flags;
3524
3525 defer_index = 0;
3526 spin_lock_irqsave(&instance->mfi_pool_lock, flags);
3527 for (i = 0; i < max_cmd; i++) {
3528 cmd = instance->cmd_list[i];
3529 if (cmd->sync_cmd == 1 || cmd->scmd) {
3530 dev_notice(&instance->pdev->dev, "moving cmd[%d]:%p:%d:%p"
3531 "on the defer queue as internal\n",
3532 defer_index, cmd, cmd->sync_cmd, cmd->scmd);
3533
3534 if (!list_empty(&cmd->list)) {
3535 dev_notice(&instance->pdev->dev, "ERROR while"
3536 " moving this cmd:%p, %d %p, it was"
3537 "discovered on some list?\n",
3538 cmd, cmd->sync_cmd, cmd->scmd);
3539
3540 list_del_init(&cmd->list);
3541 }
3542 defer_index++;
3543 list_add_tail(&cmd->list,
3544 &instance->internal_reset_pending_q);
3545 }
3546 }
3547 spin_unlock_irqrestore(&instance->mfi_pool_lock, flags);
3548 }
3549
3550
3551 static void
3552 process_fw_state_change_wq(struct work_struct *work)
3553 {
3554 struct megasas_instance *instance =
3555 container_of(work, struct megasas_instance, work_init);
3556 u32 wait;
3557 unsigned long flags;
3558
3559 if (atomic_read(&instance->adprecovery) != MEGASAS_ADPRESET_SM_INFAULT) {
3560 dev_notice(&instance->pdev->dev, "error, recovery st %x\n",
3561 atomic_read(&instance->adprecovery));
3562 return ;
3563 }
3564
3565 if (atomic_read(&instance->adprecovery) == MEGASAS_ADPRESET_SM_INFAULT) {
3566 dev_notice(&instance->pdev->dev, "FW detected to be in fault"
3567 "state, restarting it...\n");
3568
3569 instance->instancet->disable_intr(instance);
3570 atomic_set(&instance->fw_outstanding, 0);
3571
3572 atomic_set(&instance->fw_reset_no_pci_access, 1);
3573 instance->instancet->adp_reset(instance, instance->reg_set);
3574 atomic_set(&instance->fw_reset_no_pci_access, 0);
3575
3576 dev_notice(&instance->pdev->dev, "FW restarted successfully,"
3577 "initiating next stage...\n");
3578
3579 dev_notice(&instance->pdev->dev, "HBA recovery state machine,"
3580 "state 2 starting...\n");
3581
3582 /* waiting for about 20 second before start the second init */
3583 for (wait = 0; wait < 30; wait++) {
3584 msleep(1000);
3585 }
3586
3587 if (megasas_transition_to_ready(instance, 1)) {
3588 dev_notice(&instance->pdev->dev, "adapter not ready\n");
3589
3590 atomic_set(&instance->fw_reset_no_pci_access, 1);
3591 megaraid_sas_kill_hba(instance);
3592 return ;
3593 }
3594
3595 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS1064R) ||
3596 (instance->pdev->device == PCI_DEVICE_ID_DELL_PERC5) ||
3597 (instance->pdev->device == PCI_DEVICE_ID_LSI_VERDE_ZCR)
3598 ) {
3599 *instance->consumer = *instance->producer;
3600 } else {
3601 *instance->consumer = 0;
3602 *instance->producer = 0;
3603 }
3604
3605 megasas_issue_init_mfi(instance);
3606
3607 spin_lock_irqsave(&instance->hba_lock, flags);
3608 atomic_set(&instance->adprecovery, MEGASAS_HBA_OPERATIONAL);
3609 spin_unlock_irqrestore(&instance->hba_lock, flags);
3610 instance->instancet->enable_intr(instance);
3611
3612 megasas_issue_pending_cmds_again(instance);
3613 instance->issuepend_done = 1;
3614 }
3615 }
3616
3617 /**
3618 * megasas_deplete_reply_queue - Processes all completed commands
3619 * @instance: Adapter soft state
3620 * @alt_status: Alternate status to be returned to
3621 * SCSI mid-layer instead of the status
3622 * returned by the FW
3623 * Note: this must be called with hba lock held
3624 */
3625 static int
3626 megasas_deplete_reply_queue(struct megasas_instance *instance,
3627 u8 alt_status)
3628 {
3629 u32 mfiStatus;
3630 u32 fw_state;
3631
3632 if ((mfiStatus = instance->instancet->check_reset(instance,
3633 instance->reg_set)) == 1) {
3634 return IRQ_HANDLED;
3635 }
3636
3637 if ((mfiStatus = instance->instancet->clear_intr(
3638 instance->reg_set)
3639 ) == 0) {
3640 /* Hardware may not set outbound_intr_status in MSI-X mode */
3641 if (!instance->msix_vectors)
3642 return IRQ_NONE;
3643 }
3644
3645 instance->mfiStatus = mfiStatus;
3646
3647 if ((mfiStatus & MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE)) {
3648 fw_state = instance->instancet->read_fw_status_reg(
3649 instance->reg_set) & MFI_STATE_MASK;
3650
3651 if (fw_state != MFI_STATE_FAULT) {
3652 dev_notice(&instance->pdev->dev, "fw state:%x\n",
3653 fw_state);
3654 }
3655
3656 if ((fw_state == MFI_STATE_FAULT) &&
3657 (instance->disableOnlineCtrlReset == 0)) {
3658 dev_notice(&instance->pdev->dev, "wait adp restart\n");
3659
3660 if ((instance->pdev->device ==
3661 PCI_DEVICE_ID_LSI_SAS1064R) ||
3662 (instance->pdev->device ==
3663 PCI_DEVICE_ID_DELL_PERC5) ||
3664 (instance->pdev->device ==
3665 PCI_DEVICE_ID_LSI_VERDE_ZCR)) {
3666
3667 *instance->consumer =
3668 cpu_to_le32(MEGASAS_ADPRESET_INPROG_SIGN);
3669 }
3670
3671
3672 instance->instancet->disable_intr(instance);
3673 atomic_set(&instance->adprecovery, MEGASAS_ADPRESET_SM_INFAULT);
3674 instance->issuepend_done = 0;
3675
3676 atomic_set(&instance->fw_outstanding, 0);
3677 megasas_internal_reset_defer_cmds(instance);
3678
3679 dev_notice(&instance->pdev->dev, "fwState=%x, stage:%d\n",
3680 fw_state, atomic_read(&instance->adprecovery));
3681
3682 schedule_work(&instance->work_init);
3683 return IRQ_HANDLED;
3684
3685 } else {
3686 dev_notice(&instance->pdev->dev, "fwstate:%x, dis_OCR=%x\n",
3687 fw_state, instance->disableOnlineCtrlReset);
3688 }
3689 }
3690
3691 tasklet_schedule(&instance->isr_tasklet);
3692 return IRQ_HANDLED;
3693 }
3694 /**
3695 * megasas_isr - isr entry point
3696 */
3697 static irqreturn_t megasas_isr(int irq, void *devp)
3698 {
3699 struct megasas_irq_context *irq_context = devp;
3700 struct megasas_instance *instance = irq_context->instance;
3701 unsigned long flags;
3702 irqreturn_t rc;
3703
3704 if (atomic_read(&instance->fw_reset_no_pci_access))
3705 return IRQ_HANDLED;
3706
3707 spin_lock_irqsave(&instance->hba_lock, flags);
3708 rc = megasas_deplete_reply_queue(instance, DID_OK);
3709 spin_unlock_irqrestore(&instance->hba_lock, flags);
3710
3711 return rc;
3712 }
3713
3714 /**
3715 * megasas_transition_to_ready - Move the FW to READY state
3716 * @instance: Adapter soft state
3717 *
3718 * During the initialization, FW passes can potentially be in any one of
3719 * several possible states. If the FW in operational, waiting-for-handshake
3720 * states, driver must take steps to bring it to ready state. Otherwise, it
3721 * has to wait for the ready state.
3722 */
3723 int
3724 megasas_transition_to_ready(struct megasas_instance *instance, int ocr)
3725 {
3726 int i;
3727 u8 max_wait;
3728 u32 fw_state;
3729 u32 cur_state;
3730 u32 abs_state, curr_abs_state;
3731
3732 abs_state = instance->instancet->read_fw_status_reg(instance->reg_set);
3733 fw_state = abs_state & MFI_STATE_MASK;
3734
3735 if (fw_state != MFI_STATE_READY)
3736 dev_info(&instance->pdev->dev, "Waiting for FW to come to ready"
3737 " state\n");
3738
3739 while (fw_state != MFI_STATE_READY) {
3740
3741 switch (fw_state) {
3742
3743 case MFI_STATE_FAULT:
3744 dev_printk(KERN_DEBUG, &instance->pdev->dev, "FW in FAULT state!!\n");
3745 if (ocr) {
3746 max_wait = MEGASAS_RESET_WAIT_TIME;
3747 cur_state = MFI_STATE_FAULT;
3748 break;
3749 } else
3750 return -ENODEV;
3751
3752 case MFI_STATE_WAIT_HANDSHAKE:
3753 /*
3754 * Set the CLR bit in inbound doorbell
3755 */
3756 if ((instance->pdev->device ==
3757 PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
3758 (instance->pdev->device ==
3759 PCI_DEVICE_ID_LSI_SAS0071SKINNY) ||
3760 (instance->adapter_type != MFI_SERIES))
3761 writel(
3762 MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG,
3763 &instance->reg_set->doorbell);
3764 else
3765 writel(
3766 MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG,
3767 &instance->reg_set->inbound_doorbell);
3768
3769 max_wait = MEGASAS_RESET_WAIT_TIME;
3770 cur_state = MFI_STATE_WAIT_HANDSHAKE;
3771 break;
3772
3773 case MFI_STATE_BOOT_MESSAGE_PENDING:
3774 if ((instance->pdev->device ==
3775 PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
3776 (instance->pdev->device ==
3777 PCI_DEVICE_ID_LSI_SAS0071SKINNY) ||
3778 (instance->adapter_type != MFI_SERIES))
3779 writel(MFI_INIT_HOTPLUG,
3780 &instance->reg_set->doorbell);
3781 else
3782 writel(MFI_INIT_HOTPLUG,
3783 &instance->reg_set->inbound_doorbell);
3784
3785 max_wait = MEGASAS_RESET_WAIT_TIME;
3786 cur_state = MFI_STATE_BOOT_MESSAGE_PENDING;
3787 break;
3788
3789 case MFI_STATE_OPERATIONAL:
3790 /*
3791 * Bring it to READY state; assuming max wait 10 secs
3792 */
3793 instance->instancet->disable_intr(instance);
3794 if ((instance->pdev->device ==
3795 PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
3796 (instance->pdev->device ==
3797 PCI_DEVICE_ID_LSI_SAS0071SKINNY) ||
3798 (instance->adapter_type != MFI_SERIES)) {
3799 writel(MFI_RESET_FLAGS,
3800 &instance->reg_set->doorbell);
3801
3802 if (instance->adapter_type != MFI_SERIES) {
3803 for (i = 0; i < (10 * 1000); i += 20) {
3804 if (readl(
3805 &instance->
3806 reg_set->
3807 doorbell) & 1)
3808 msleep(20);
3809 else
3810 break;
3811 }
3812 }
3813 } else
3814 writel(MFI_RESET_FLAGS,
3815 &instance->reg_set->inbound_doorbell);
3816
3817 max_wait = MEGASAS_RESET_WAIT_TIME;
3818 cur_state = MFI_STATE_OPERATIONAL;
3819 break;
3820
3821 case MFI_STATE_UNDEFINED:
3822 /*
3823 * This state should not last for more than 2 seconds
3824 */
3825 max_wait = MEGASAS_RESET_WAIT_TIME;
3826 cur_state = MFI_STATE_UNDEFINED;
3827 break;
3828
3829 case MFI_STATE_BB_INIT:
3830 max_wait = MEGASAS_RESET_WAIT_TIME;
3831 cur_state = MFI_STATE_BB_INIT;
3832 break;
3833
3834 case MFI_STATE_FW_INIT:
3835 max_wait = MEGASAS_RESET_WAIT_TIME;
3836 cur_state = MFI_STATE_FW_INIT;
3837 break;
3838
3839 case MFI_STATE_FW_INIT_2:
3840 max_wait = MEGASAS_RESET_WAIT_TIME;
3841 cur_state = MFI_STATE_FW_INIT_2;
3842 break;
3843
3844 case MFI_STATE_DEVICE_SCAN:
3845 max_wait = MEGASAS_RESET_WAIT_TIME;
3846 cur_state = MFI_STATE_DEVICE_SCAN;
3847 break;
3848
3849 case MFI_STATE_FLUSH_CACHE:
3850 max_wait = MEGASAS_RESET_WAIT_TIME;
3851 cur_state = MFI_STATE_FLUSH_CACHE;
3852 break;
3853
3854 default:
3855 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Unknown state 0x%x\n",
3856 fw_state);
3857 return -ENODEV;
3858 }
3859
3860 /*
3861 * The cur_state should not last for more than max_wait secs
3862 */
3863 for (i = 0; i < (max_wait * 1000); i++) {
3864 curr_abs_state = instance->instancet->
3865 read_fw_status_reg(instance->reg_set);
3866
3867 if (abs_state == curr_abs_state) {
3868 msleep(1);
3869 } else
3870 break;
3871 }
3872
3873 /*
3874 * Return error if fw_state hasn't changed after max_wait
3875 */
3876 if (curr_abs_state == abs_state) {
3877 dev_printk(KERN_DEBUG, &instance->pdev->dev, "FW state [%d] hasn't changed "
3878 "in %d secs\n", fw_state, max_wait);
3879 return -ENODEV;
3880 }
3881
3882 abs_state = curr_abs_state;
3883 fw_state = curr_abs_state & MFI_STATE_MASK;
3884 }
3885 dev_info(&instance->pdev->dev, "FW now in Ready state\n");
3886
3887 return 0;
3888 }
3889
3890 /**
3891 * megasas_teardown_frame_pool - Destroy the cmd frame DMA pool
3892 * @instance: Adapter soft state
3893 */
3894 static void megasas_teardown_frame_pool(struct megasas_instance *instance)
3895 {
3896 int i;
3897 u16 max_cmd = instance->max_mfi_cmds;
3898 struct megasas_cmd *cmd;
3899
3900 if (!instance->frame_dma_pool)
3901 return;
3902
3903 /*
3904 * Return all frames to pool
3905 */
3906 for (i = 0; i < max_cmd; i++) {
3907
3908 cmd = instance->cmd_list[i];
3909
3910 if (cmd->frame)
3911 dma_pool_free(instance->frame_dma_pool, cmd->frame,
3912 cmd->frame_phys_addr);
3913
3914 if (cmd->sense)
3915 dma_pool_free(instance->sense_dma_pool, cmd->sense,
3916 cmd->sense_phys_addr);
3917 }
3918
3919 /*
3920 * Now destroy the pool itself
3921 */
3922 dma_pool_destroy(instance->frame_dma_pool);
3923 dma_pool_destroy(instance->sense_dma_pool);
3924
3925 instance->frame_dma_pool = NULL;
3926 instance->sense_dma_pool = NULL;
3927 }
3928
3929 /**
3930 * megasas_create_frame_pool - Creates DMA pool for cmd frames
3931 * @instance: Adapter soft state
3932 *
3933 * Each command packet has an embedded DMA memory buffer that is used for
3934 * filling MFI frame and the SG list that immediately follows the frame. This
3935 * function creates those DMA memory buffers for each command packet by using
3936 * PCI pool facility.
3937 */
3938 static int megasas_create_frame_pool(struct megasas_instance *instance)
3939 {
3940 int i;
3941 u16 max_cmd;
3942 u32 sge_sz;
3943 u32 frame_count;
3944 struct megasas_cmd *cmd;
3945
3946 max_cmd = instance->max_mfi_cmds;
3947
3948 /*
3949 * Size of our frame is 64 bytes for MFI frame, followed by max SG
3950 * elements and finally SCSI_SENSE_BUFFERSIZE bytes for sense buffer
3951 */
3952 sge_sz = (IS_DMA64) ? sizeof(struct megasas_sge64) :
3953 sizeof(struct megasas_sge32);
3954
3955 if (instance->flag_ieee)
3956 sge_sz = sizeof(struct megasas_sge_skinny);
3957
3958 /*
3959 * For MFI controllers.
3960 * max_num_sge = 60
3961 * max_sge_sz = 16 byte (sizeof megasas_sge_skinny)
3962 * Total 960 byte (15 MFI frame of 64 byte)
3963 *
3964 * Fusion adapter require only 3 extra frame.
3965 * max_num_sge = 16 (defined as MAX_IOCTL_SGE)
3966 * max_sge_sz = 12 byte (sizeof megasas_sge64)
3967 * Total 192 byte (3 MFI frame of 64 byte)
3968 */
3969 frame_count = (instance->adapter_type == MFI_SERIES) ?
3970 (15 + 1) : (3 + 1);
3971 instance->mfi_frame_size = MEGAMFI_FRAME_SIZE * frame_count;
3972 /*
3973 * Use DMA pool facility provided by PCI layer
3974 */
3975 instance->frame_dma_pool = dma_pool_create("megasas frame pool",
3976 &instance->pdev->dev,
3977 instance->mfi_frame_size, 256, 0);
3978
3979 if (!instance->frame_dma_pool) {
3980 dev_printk(KERN_DEBUG, &instance->pdev->dev, "failed to setup frame pool\n");
3981 return -ENOMEM;
3982 }
3983
3984 instance->sense_dma_pool = dma_pool_create("megasas sense pool",
3985 &instance->pdev->dev, 128,
3986 4, 0);
3987
3988 if (!instance->sense_dma_pool) {
3989 dev_printk(KERN_DEBUG, &instance->pdev->dev, "failed to setup sense pool\n");
3990
3991 dma_pool_destroy(instance->frame_dma_pool);
3992 instance->frame_dma_pool = NULL;
3993
3994 return -ENOMEM;
3995 }
3996
3997 /*
3998 * Allocate and attach a frame to each of the commands in cmd_list.
3999 * By making cmd->index as the context instead of the &cmd, we can
4000 * always use 32bit context regardless of the architecture
4001 */
4002 for (i = 0; i < max_cmd; i++) {
4003
4004 cmd = instance->cmd_list[i];
4005
4006 cmd->frame = dma_pool_alloc(instance->frame_dma_pool,
4007 GFP_KERNEL, &cmd->frame_phys_addr);
4008
4009 cmd->sense = dma_pool_alloc(instance->sense_dma_pool,
4010 GFP_KERNEL, &cmd->sense_phys_addr);
4011
4012 /*
4013 * megasas_teardown_frame_pool() takes care of freeing
4014 * whatever has been allocated
4015 */
4016 if (!cmd->frame || !cmd->sense) {
4017 dev_printk(KERN_DEBUG, &instance->pdev->dev, "dma_pool_alloc failed\n");
4018 megasas_teardown_frame_pool(instance);
4019 return -ENOMEM;
4020 }
4021
4022 memset(cmd->frame, 0, instance->mfi_frame_size);
4023 cmd->frame->io.context = cpu_to_le32(cmd->index);
4024 cmd->frame->io.pad_0 = 0;
4025 if ((instance->adapter_type == MFI_SERIES) && reset_devices)
4026 cmd->frame->hdr.cmd = MFI_CMD_INVALID;
4027 }
4028
4029 return 0;
4030 }
4031
4032 /**
4033 * megasas_free_cmds - Free all the cmds in the free cmd pool
4034 * @instance: Adapter soft state
4035 */
4036 void megasas_free_cmds(struct megasas_instance *instance)
4037 {
4038 int i;
4039
4040 /* First free the MFI frame pool */
4041 megasas_teardown_frame_pool(instance);
4042
4043 /* Free all the commands in the cmd_list */
4044 for (i = 0; i < instance->max_mfi_cmds; i++)
4045
4046 kfree(instance->cmd_list[i]);
4047
4048 /* Free the cmd_list buffer itself */
4049 kfree(instance->cmd_list);
4050 instance->cmd_list = NULL;
4051
4052 INIT_LIST_HEAD(&instance->cmd_pool);
4053 }
4054
4055 /**
4056 * megasas_alloc_cmds - Allocates the command packets
4057 * @instance: Adapter soft state
4058 *
4059 * Each command that is issued to the FW, whether IO commands from the OS or
4060 * internal commands like IOCTLs, are wrapped in local data structure called
4061 * megasas_cmd. The frame embedded in this megasas_cmd is actually issued to
4062 * the FW.
4063 *
4064 * Each frame has a 32-bit field called context (tag). This context is used
4065 * to get back the megasas_cmd from the frame when a frame gets completed in
4066 * the ISR. Typically the address of the megasas_cmd itself would be used as
4067 * the context. But we wanted to keep the differences between 32 and 64 bit
4068 * systems to the mininum. We always use 32 bit integers for the context. In
4069 * this driver, the 32 bit values are the indices into an array cmd_list.
4070 * This array is used only to look up the megasas_cmd given the context. The
4071 * free commands themselves are maintained in a linked list called cmd_pool.
4072 */
4073 int megasas_alloc_cmds(struct megasas_instance *instance)
4074 {
4075 int i;
4076 int j;
4077 u16 max_cmd;
4078 struct megasas_cmd *cmd;
4079
4080 max_cmd = instance->max_mfi_cmds;
4081
4082 /*
4083 * instance->cmd_list is an array of struct megasas_cmd pointers.
4084 * Allocate the dynamic array first and then allocate individual
4085 * commands.
4086 */
4087 instance->cmd_list = kcalloc(max_cmd, sizeof(struct megasas_cmd*), GFP_KERNEL);
4088
4089 if (!instance->cmd_list) {
4090 dev_printk(KERN_DEBUG, &instance->pdev->dev, "out of memory\n");
4091 return -ENOMEM;
4092 }
4093
4094 memset(instance->cmd_list, 0, sizeof(struct megasas_cmd *) *max_cmd);
4095
4096 for (i = 0; i < max_cmd; i++) {
4097 instance->cmd_list[i] = kmalloc(sizeof(struct megasas_cmd),
4098 GFP_KERNEL);
4099
4100 if (!instance->cmd_list[i]) {
4101
4102 for (j = 0; j < i; j++)
4103 kfree(instance->cmd_list[j]);
4104
4105 kfree(instance->cmd_list);
4106 instance->cmd_list = NULL;
4107
4108 return -ENOMEM;
4109 }
4110 }
4111
4112 for (i = 0; i < max_cmd; i++) {
4113 cmd = instance->cmd_list[i];
4114 memset(cmd, 0, sizeof(struct megasas_cmd));
4115 cmd->index = i;
4116 cmd->scmd = NULL;
4117 cmd->instance = instance;
4118
4119 list_add_tail(&cmd->list, &instance->cmd_pool);
4120 }
4121
4122 /*
4123 * Create a frame pool and assign one frame to each cmd
4124 */
4125 if (megasas_create_frame_pool(instance)) {
4126 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Error creating frame DMA pool\n");
4127 megasas_free_cmds(instance);
4128 }
4129
4130 return 0;
4131 }
4132
4133 /*
4134 * dcmd_timeout_ocr_possible - Check if OCR is possible based on Driver/FW state.
4135 * @instance: Adapter soft state
4136 *
4137 * Return 0 for only Fusion adapter, if driver load/unload is not in progress
4138 * or FW is not under OCR.
4139 */
4140 inline int
4141 dcmd_timeout_ocr_possible(struct megasas_instance *instance) {
4142
4143 if (instance->adapter_type == MFI_SERIES)
4144 return KILL_ADAPTER;
4145 else if (instance->unload ||
4146 test_bit(MEGASAS_FUSION_IN_RESET, &instance->reset_flags))
4147 return IGNORE_TIMEOUT;
4148 else
4149 return INITIATE_OCR;
4150 }
4151
4152 static void
4153 megasas_get_pd_info(struct megasas_instance *instance, struct scsi_device *sdev)
4154 {
4155 int ret;
4156 struct megasas_cmd *cmd;
4157 struct megasas_dcmd_frame *dcmd;
4158
4159 struct MR_PRIV_DEVICE *mr_device_priv_data;
4160 u16 device_id = 0;
4161
4162 device_id = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + sdev->id;
4163 cmd = megasas_get_cmd(instance);
4164
4165 if (!cmd) {
4166 dev_err(&instance->pdev->dev, "Failed to get cmd %s\n", __func__);
4167 return;
4168 }
4169
4170 dcmd = &cmd->frame->dcmd;
4171
4172 memset(instance->pd_info, 0, sizeof(*instance->pd_info));
4173 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
4174
4175 dcmd->mbox.s[0] = cpu_to_le16(device_id);
4176 dcmd->cmd = MFI_CMD_DCMD;
4177 dcmd->cmd_status = 0xFF;
4178 dcmd->sge_count = 1;
4179 dcmd->flags = MFI_FRAME_DIR_READ;
4180 dcmd->timeout = 0;
4181 dcmd->pad_0 = 0;
4182 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_PD_INFO));
4183 dcmd->opcode = cpu_to_le32(MR_DCMD_PD_GET_INFO);
4184
4185 megasas_set_dma_settings(instance, dcmd, instance->pd_info_h,
4186 sizeof(struct MR_PD_INFO));
4187
4188 if ((instance->adapter_type != MFI_SERIES) &&
4189 !instance->mask_interrupts)
4190 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS);
4191 else
4192 ret = megasas_issue_polled(instance, cmd);
4193
4194 switch (ret) {
4195 case DCMD_SUCCESS:
4196 mr_device_priv_data = sdev->hostdata;
4197 le16_to_cpus((u16 *)&instance->pd_info->state.ddf.pdType);
4198 mr_device_priv_data->interface_type =
4199 instance->pd_info->state.ddf.pdType.intf;
4200 break;
4201
4202 case DCMD_TIMEOUT:
4203
4204 switch (dcmd_timeout_ocr_possible(instance)) {
4205 case INITIATE_OCR:
4206 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
4207 megasas_reset_fusion(instance->host,
4208 MFI_IO_TIMEOUT_OCR);
4209 break;
4210 case KILL_ADAPTER:
4211 megaraid_sas_kill_hba(instance);
4212 break;
4213 case IGNORE_TIMEOUT:
4214 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n",
4215 __func__, __LINE__);
4216 break;
4217 }
4218
4219 break;
4220 }
4221
4222 if (ret != DCMD_TIMEOUT)
4223 megasas_return_cmd(instance, cmd);
4224
4225 return;
4226 }
4227 /*
4228 * megasas_get_pd_list_info - Returns FW's pd_list structure
4229 * @instance: Adapter soft state
4230 * @pd_list: pd_list structure
4231 *
4232 * Issues an internal command (DCMD) to get the FW's controller PD
4233 * list structure. This information is mainly used to find out SYSTEM
4234 * supported by the FW.
4235 */
4236 static int
4237 megasas_get_pd_list(struct megasas_instance *instance)
4238 {
4239 int ret = 0, pd_index = 0;
4240 struct megasas_cmd *cmd;
4241 struct megasas_dcmd_frame *dcmd;
4242 struct MR_PD_LIST *ci;
4243 struct MR_PD_ADDRESS *pd_addr;
4244 dma_addr_t ci_h = 0;
4245
4246 if (instance->pd_list_not_supported) {
4247 dev_info(&instance->pdev->dev, "MR_DCMD_PD_LIST_QUERY "
4248 "not supported by firmware\n");
4249 return ret;
4250 }
4251
4252 ci = instance->pd_list_buf;
4253 ci_h = instance->pd_list_buf_h;
4254
4255 cmd = megasas_get_cmd(instance);
4256
4257 if (!cmd) {
4258 dev_printk(KERN_DEBUG, &instance->pdev->dev, "(get_pd_list): Failed to get cmd\n");
4259 return -ENOMEM;
4260 }
4261
4262 dcmd = &cmd->frame->dcmd;
4263
4264 memset(ci, 0, sizeof(*ci));
4265 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
4266
4267 dcmd->mbox.b[0] = MR_PD_QUERY_TYPE_EXPOSED_TO_HOST;
4268 dcmd->mbox.b[1] = 0;
4269 dcmd->cmd = MFI_CMD_DCMD;
4270 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
4271 dcmd->sge_count = 1;
4272 dcmd->flags = MFI_FRAME_DIR_READ;
4273 dcmd->timeout = 0;
4274 dcmd->pad_0 = 0;
4275 dcmd->data_xfer_len = cpu_to_le32(MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST));
4276 dcmd->opcode = cpu_to_le32(MR_DCMD_PD_LIST_QUERY);
4277
4278 megasas_set_dma_settings(instance, dcmd, instance->pd_list_buf_h,
4279 (MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST)));
4280
4281 if ((instance->adapter_type != MFI_SERIES) &&
4282 !instance->mask_interrupts)
4283 ret = megasas_issue_blocked_cmd(instance, cmd,
4284 MFI_IO_TIMEOUT_SECS);
4285 else
4286 ret = megasas_issue_polled(instance, cmd);
4287
4288 switch (ret) {
4289 case DCMD_FAILED:
4290 dev_info(&instance->pdev->dev, "MR_DCMD_PD_LIST_QUERY "
4291 "failed/not supported by firmware\n");
4292
4293 if (instance->adapter_type != MFI_SERIES)
4294 megaraid_sas_kill_hba(instance);
4295 else
4296 instance->pd_list_not_supported = 1;
4297 break;
4298 case DCMD_TIMEOUT:
4299
4300 switch (dcmd_timeout_ocr_possible(instance)) {
4301 case INITIATE_OCR:
4302 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
4303 /*
4304 * DCMD failed from AEN path.
4305 * AEN path already hold reset_mutex to avoid PCI access
4306 * while OCR is in progress.
4307 */
4308 mutex_unlock(&instance->reset_mutex);
4309 megasas_reset_fusion(instance->host,
4310 MFI_IO_TIMEOUT_OCR);
4311 mutex_lock(&instance->reset_mutex);
4312 break;
4313 case KILL_ADAPTER:
4314 megaraid_sas_kill_hba(instance);
4315 break;
4316 case IGNORE_TIMEOUT:
4317 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d \n",
4318 __func__, __LINE__);
4319 break;
4320 }
4321
4322 break;
4323
4324 case DCMD_SUCCESS:
4325 pd_addr = ci->addr;
4326
4327 if ((le32_to_cpu(ci->count) >
4328 (MEGASAS_MAX_PD_CHANNELS * MEGASAS_MAX_DEV_PER_CHANNEL)))
4329 break;
4330
4331 memset(instance->local_pd_list, 0,
4332 MEGASAS_MAX_PD * sizeof(struct megasas_pd_list));
4333
4334 for (pd_index = 0; pd_index < le32_to_cpu(ci->count); pd_index++) {
4335 instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].tid =
4336 le16_to_cpu(pd_addr->deviceId);
4337 instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].driveType =
4338 pd_addr->scsiDevType;
4339 instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].driveState =
4340 MR_PD_STATE_SYSTEM;
4341 pd_addr++;
4342 }
4343
4344 memcpy(instance->pd_list, instance->local_pd_list,
4345 sizeof(instance->pd_list));
4346 break;
4347
4348 }
4349
4350 if (ret != DCMD_TIMEOUT)
4351 megasas_return_cmd(instance, cmd);
4352
4353 return ret;
4354 }
4355
4356 /*
4357 * megasas_get_ld_list_info - Returns FW's ld_list structure
4358 * @instance: Adapter soft state
4359 * @ld_list: ld_list structure
4360 *
4361 * Issues an internal command (DCMD) to get the FW's controller PD
4362 * list structure. This information is mainly used to find out SYSTEM
4363 * supported by the FW.
4364 */
4365 static int
4366 megasas_get_ld_list(struct megasas_instance *instance)
4367 {
4368 int ret = 0, ld_index = 0, ids = 0;
4369 struct megasas_cmd *cmd;
4370 struct megasas_dcmd_frame *dcmd;
4371 struct MR_LD_LIST *ci;
4372 dma_addr_t ci_h = 0;
4373 u32 ld_count;
4374
4375 ci = instance->ld_list_buf;
4376 ci_h = instance->ld_list_buf_h;
4377
4378 cmd = megasas_get_cmd(instance);
4379
4380 if (!cmd) {
4381 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_list: Failed to get cmd\n");
4382 return -ENOMEM;
4383 }
4384
4385 dcmd = &cmd->frame->dcmd;
4386
4387 memset(ci, 0, sizeof(*ci));
4388 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
4389
4390 if (instance->supportmax256vd)
4391 dcmd->mbox.b[0] = 1;
4392 dcmd->cmd = MFI_CMD_DCMD;
4393 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
4394 dcmd->sge_count = 1;
4395 dcmd->flags = MFI_FRAME_DIR_READ;
4396 dcmd->timeout = 0;
4397 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_LD_LIST));
4398 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_GET_LIST);
4399 dcmd->pad_0 = 0;
4400
4401 megasas_set_dma_settings(instance, dcmd, ci_h,
4402 sizeof(struct MR_LD_LIST));
4403
4404 if ((instance->adapter_type != MFI_SERIES) &&
4405 !instance->mask_interrupts)
4406 ret = megasas_issue_blocked_cmd(instance, cmd,
4407 MFI_IO_TIMEOUT_SECS);
4408 else
4409 ret = megasas_issue_polled(instance, cmd);
4410
4411 ld_count = le32_to_cpu(ci->ldCount);
4412
4413 switch (ret) {
4414 case DCMD_FAILED:
4415 megaraid_sas_kill_hba(instance);
4416 break;
4417 case DCMD_TIMEOUT:
4418
4419 switch (dcmd_timeout_ocr_possible(instance)) {
4420 case INITIATE_OCR:
4421 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
4422 /*
4423 * DCMD failed from AEN path.
4424 * AEN path already hold reset_mutex to avoid PCI access
4425 * while OCR is in progress.
4426 */
4427 mutex_unlock(&instance->reset_mutex);
4428 megasas_reset_fusion(instance->host,
4429 MFI_IO_TIMEOUT_OCR);
4430 mutex_lock(&instance->reset_mutex);
4431 break;
4432 case KILL_ADAPTER:
4433 megaraid_sas_kill_hba(instance);
4434 break;
4435 case IGNORE_TIMEOUT:
4436 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n",
4437 __func__, __LINE__);
4438 break;
4439 }
4440
4441 break;
4442
4443 case DCMD_SUCCESS:
4444 if (ld_count > instance->fw_supported_vd_count)
4445 break;
4446
4447 memset(instance->ld_ids, 0xff, MAX_LOGICAL_DRIVES_EXT);
4448
4449 for (ld_index = 0; ld_index < ld_count; ld_index++) {
4450 if (ci->ldList[ld_index].state != 0) {
4451 ids = ci->ldList[ld_index].ref.targetId;
4452 instance->ld_ids[ids] = ci->ldList[ld_index].ref.targetId;
4453 }
4454 }
4455
4456 break;
4457 }
4458
4459 if (ret != DCMD_TIMEOUT)
4460 megasas_return_cmd(instance, cmd);
4461
4462 return ret;
4463 }
4464
4465 /**
4466 * megasas_ld_list_query - Returns FW's ld_list structure
4467 * @instance: Adapter soft state
4468 * @ld_list: ld_list structure
4469 *
4470 * Issues an internal command (DCMD) to get the FW's controller PD
4471 * list structure. This information is mainly used to find out SYSTEM
4472 * supported by the FW.
4473 */
4474 static int
4475 megasas_ld_list_query(struct megasas_instance *instance, u8 query_type)
4476 {
4477 int ret = 0, ld_index = 0, ids = 0;
4478 struct megasas_cmd *cmd;
4479 struct megasas_dcmd_frame *dcmd;
4480 struct MR_LD_TARGETID_LIST *ci;
4481 dma_addr_t ci_h = 0;
4482 u32 tgtid_count;
4483
4484 ci = instance->ld_targetid_list_buf;
4485 ci_h = instance->ld_targetid_list_buf_h;
4486
4487 cmd = megasas_get_cmd(instance);
4488
4489 if (!cmd) {
4490 dev_warn(&instance->pdev->dev,
4491 "megasas_ld_list_query: Failed to get cmd\n");
4492 return -ENOMEM;
4493 }
4494
4495 dcmd = &cmd->frame->dcmd;
4496
4497 memset(ci, 0, sizeof(*ci));
4498 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
4499
4500 dcmd->mbox.b[0] = query_type;
4501 if (instance->supportmax256vd)
4502 dcmd->mbox.b[2] = 1;
4503
4504 dcmd->cmd = MFI_CMD_DCMD;
4505 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
4506 dcmd->sge_count = 1;
4507 dcmd->flags = MFI_FRAME_DIR_READ;
4508 dcmd->timeout = 0;
4509 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_LD_TARGETID_LIST));
4510 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_LIST_QUERY);
4511 dcmd->pad_0 = 0;
4512
4513 megasas_set_dma_settings(instance, dcmd, ci_h,
4514 sizeof(struct MR_LD_TARGETID_LIST));
4515
4516 if ((instance->adapter_type != MFI_SERIES) &&
4517 !instance->mask_interrupts)
4518 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS);
4519 else
4520 ret = megasas_issue_polled(instance, cmd);
4521
4522 switch (ret) {
4523 case DCMD_FAILED:
4524 dev_info(&instance->pdev->dev,
4525 "DCMD not supported by firmware - %s %d\n",
4526 __func__, __LINE__);
4527 ret = megasas_get_ld_list(instance);
4528 break;
4529 case DCMD_TIMEOUT:
4530 switch (dcmd_timeout_ocr_possible(instance)) {
4531 case INITIATE_OCR:
4532 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
4533 /*
4534 * DCMD failed from AEN path.
4535 * AEN path already hold reset_mutex to avoid PCI access
4536 * while OCR is in progress.
4537 */
4538 mutex_unlock(&instance->reset_mutex);
4539 megasas_reset_fusion(instance->host,
4540 MFI_IO_TIMEOUT_OCR);
4541 mutex_lock(&instance->reset_mutex);
4542 break;
4543 case KILL_ADAPTER:
4544 megaraid_sas_kill_hba(instance);
4545 break;
4546 case IGNORE_TIMEOUT:
4547 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n",
4548 __func__, __LINE__);
4549 break;
4550 }
4551
4552 break;
4553 case DCMD_SUCCESS:
4554 tgtid_count = le32_to_cpu(ci->count);
4555
4556 if ((tgtid_count > (instance->fw_supported_vd_count)))
4557 break;
4558
4559 memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS);
4560 for (ld_index = 0; ld_index < tgtid_count; ld_index++) {
4561 ids = ci->targetId[ld_index];
4562 instance->ld_ids[ids] = ci->targetId[ld_index];
4563 }
4564
4565 break;
4566 }
4567
4568 if (ret != DCMD_TIMEOUT)
4569 megasas_return_cmd(instance, cmd);
4570
4571 return ret;
4572 }
4573
4574 /*
4575 * megasas_update_ext_vd_details : Update details w.r.t Extended VD
4576 * instance : Controller's instance
4577 */
4578 static void megasas_update_ext_vd_details(struct megasas_instance *instance)
4579 {
4580 struct fusion_context *fusion;
4581 u32 ventura_map_sz = 0;
4582
4583 fusion = instance->ctrl_context;
4584 /* For MFI based controllers return dummy success */
4585 if (!fusion)
4586 return;
4587
4588 instance->supportmax256vd =
4589 instance->ctrl_info_buf->adapterOperations3.supportMaxExtLDs;
4590 /* Below is additional check to address future FW enhancement */
4591 if (instance->ctrl_info_buf->max_lds > 64)
4592 instance->supportmax256vd = 1;
4593
4594 instance->drv_supported_vd_count = MEGASAS_MAX_LD_CHANNELS
4595 * MEGASAS_MAX_DEV_PER_CHANNEL;
4596 instance->drv_supported_pd_count = MEGASAS_MAX_PD_CHANNELS
4597 * MEGASAS_MAX_DEV_PER_CHANNEL;
4598 if (instance->supportmax256vd) {
4599 instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES_EXT;
4600 instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES;
4601 } else {
4602 instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES;
4603 instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES;
4604 }
4605
4606 dev_info(&instance->pdev->dev,
4607 "firmware type\t: %s\n",
4608 instance->supportmax256vd ? "Extended VD(240 VD)firmware" :
4609 "Legacy(64 VD) firmware");
4610
4611 if (instance->max_raid_mapsize) {
4612 ventura_map_sz = instance->max_raid_mapsize *
4613 MR_MIN_MAP_SIZE; /* 64k */
4614 fusion->current_map_sz = ventura_map_sz;
4615 fusion->max_map_sz = ventura_map_sz;
4616 } else {
4617 fusion->old_map_sz = sizeof(struct MR_FW_RAID_MAP) +
4618 (sizeof(struct MR_LD_SPAN_MAP) *
4619 (instance->fw_supported_vd_count - 1));
4620 fusion->new_map_sz = sizeof(struct MR_FW_RAID_MAP_EXT);
4621
4622 fusion->max_map_sz =
4623 max(fusion->old_map_sz, fusion->new_map_sz);
4624
4625 if (instance->supportmax256vd)
4626 fusion->current_map_sz = fusion->new_map_sz;
4627 else
4628 fusion->current_map_sz = fusion->old_map_sz;
4629 }
4630 /* irrespective of FW raid maps, driver raid map is constant */
4631 fusion->drv_map_sz = sizeof(struct MR_DRV_RAID_MAP_ALL);
4632 }
4633
4634 /**
4635 * megasas_get_controller_info - Returns FW's controller structure
4636 * @instance: Adapter soft state
4637 *
4638 * Issues an internal command (DCMD) to get the FW's controller structure.
4639 * This information is mainly used to find out the maximum IO transfer per
4640 * command supported by the FW.
4641 */
4642 int
4643 megasas_get_ctrl_info(struct megasas_instance *instance)
4644 {
4645 int ret = 0;
4646 struct megasas_cmd *cmd;
4647 struct megasas_dcmd_frame *dcmd;
4648 struct megasas_ctrl_info *ci;
4649 dma_addr_t ci_h = 0;
4650
4651 ci = instance->ctrl_info_buf;
4652 ci_h = instance->ctrl_info_buf_h;
4653
4654 cmd = megasas_get_cmd(instance);
4655
4656 if (!cmd) {
4657 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to get a free cmd\n");
4658 return -ENOMEM;
4659 }
4660
4661 dcmd = &cmd->frame->dcmd;
4662
4663 memset(ci, 0, sizeof(*ci));
4664 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
4665
4666 dcmd->cmd = MFI_CMD_DCMD;
4667 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
4668 dcmd->sge_count = 1;
4669 dcmd->flags = MFI_FRAME_DIR_READ;
4670 dcmd->timeout = 0;
4671 dcmd->pad_0 = 0;
4672 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct megasas_ctrl_info));
4673 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_GET_INFO);
4674 dcmd->mbox.b[0] = 1;
4675
4676 megasas_set_dma_settings(instance, dcmd, ci_h,
4677 sizeof(struct megasas_ctrl_info));
4678
4679 if ((instance->adapter_type != MFI_SERIES) &&
4680 !instance->mask_interrupts)
4681 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS);
4682 else
4683 ret = megasas_issue_polled(instance, cmd);
4684
4685 switch (ret) {
4686 case DCMD_SUCCESS:
4687 /* Save required controller information in
4688 * CPU endianness format.
4689 */
4690 le32_to_cpus((u32 *)&ci->properties.OnOffProperties);
4691 le32_to_cpus((u32 *)&ci->adapterOperations2);
4692 le32_to_cpus((u32 *)&ci->adapterOperations3);
4693 le16_to_cpus((u16 *)&ci->adapter_operations4);
4694
4695 /* Update the latest Ext VD info.
4696 * From Init path, store current firmware details.
4697 * From OCR path, detect any firmware properties changes.
4698 * in case of Firmware upgrade without system reboot.
4699 */
4700 megasas_update_ext_vd_details(instance);
4701 instance->use_seqnum_jbod_fp =
4702 ci->adapterOperations3.useSeqNumJbodFP;
4703 instance->support_morethan256jbod =
4704 ci->adapter_operations4.support_pd_map_target_id;
4705
4706 /*Check whether controller is iMR or MR */
4707 instance->is_imr = (ci->memory_size ? 0 : 1);
4708 dev_info(&instance->pdev->dev,
4709 "controller type\t: %s(%dMB)\n",
4710 instance->is_imr ? "iMR" : "MR",
4711 le16_to_cpu(ci->memory_size));
4712
4713 instance->disableOnlineCtrlReset =
4714 ci->properties.OnOffProperties.disableOnlineCtrlReset;
4715 instance->secure_jbod_support =
4716 ci->adapterOperations3.supportSecurityonJBOD;
4717 dev_info(&instance->pdev->dev, "Online Controller Reset(OCR)\t: %s\n",
4718 instance->disableOnlineCtrlReset ? "Disabled" : "Enabled");
4719 dev_info(&instance->pdev->dev, "Secure JBOD support\t: %s\n",
4720 instance->secure_jbod_support ? "Yes" : "No");
4721 break;
4722
4723 case DCMD_TIMEOUT:
4724 switch (dcmd_timeout_ocr_possible(instance)) {
4725 case INITIATE_OCR:
4726 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
4727 megasas_reset_fusion(instance->host,
4728 MFI_IO_TIMEOUT_OCR);
4729 break;
4730 case KILL_ADAPTER:
4731 megaraid_sas_kill_hba(instance);
4732 break;
4733 case IGNORE_TIMEOUT:
4734 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n",
4735 __func__, __LINE__);
4736 break;
4737 }
4738 case DCMD_FAILED:
4739 megaraid_sas_kill_hba(instance);
4740 break;
4741
4742 }
4743
4744 megasas_return_cmd(instance, cmd);
4745
4746
4747 return ret;
4748 }
4749
4750 /*
4751 * megasas_set_crash_dump_params - Sends address of crash dump DMA buffer
4752 * to firmware
4753 *
4754 * @instance: Adapter soft state
4755 * @crash_buf_state - tell FW to turn ON/OFF crash dump feature
4756 MR_CRASH_BUF_TURN_OFF = 0
4757 MR_CRASH_BUF_TURN_ON = 1
4758 * @return 0 on success non-zero on failure.
4759 * Issues an internal command (DCMD) to set parameters for crash dump feature.
4760 * Driver will send address of crash dump DMA buffer and set mbox to tell FW
4761 * that driver supports crash dump feature. This DCMD will be sent only if
4762 * crash dump feature is supported by the FW.
4763 *
4764 */
4765 int megasas_set_crash_dump_params(struct megasas_instance *instance,
4766 u8 crash_buf_state)
4767 {
4768 int ret = 0;
4769 struct megasas_cmd *cmd;
4770 struct megasas_dcmd_frame *dcmd;
4771
4772 cmd = megasas_get_cmd(instance);
4773
4774 if (!cmd) {
4775 dev_err(&instance->pdev->dev, "Failed to get a free cmd\n");
4776 return -ENOMEM;
4777 }
4778
4779
4780 dcmd = &cmd->frame->dcmd;
4781
4782 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
4783 dcmd->mbox.b[0] = crash_buf_state;
4784 dcmd->cmd = MFI_CMD_DCMD;
4785 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
4786 dcmd->sge_count = 1;
4787 dcmd->flags = MFI_FRAME_DIR_NONE;
4788 dcmd->timeout = 0;
4789 dcmd->pad_0 = 0;
4790 dcmd->data_xfer_len = cpu_to_le32(CRASH_DMA_BUF_SIZE);
4791 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_SET_CRASH_DUMP_PARAMS);
4792
4793 megasas_set_dma_settings(instance, dcmd, instance->crash_dump_h,
4794 CRASH_DMA_BUF_SIZE);
4795
4796 if ((instance->adapter_type != MFI_SERIES) &&
4797 !instance->mask_interrupts)
4798 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS);
4799 else
4800 ret = megasas_issue_polled(instance, cmd);
4801
4802 if (ret == DCMD_TIMEOUT) {
4803 switch (dcmd_timeout_ocr_possible(instance)) {
4804 case INITIATE_OCR:
4805 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
4806 megasas_reset_fusion(instance->host,
4807 MFI_IO_TIMEOUT_OCR);
4808 break;
4809 case KILL_ADAPTER:
4810 megaraid_sas_kill_hba(instance);
4811 break;
4812 case IGNORE_TIMEOUT:
4813 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n",
4814 __func__, __LINE__);
4815 break;
4816 }
4817 } else
4818 megasas_return_cmd(instance, cmd);
4819
4820 return ret;
4821 }
4822
4823 /**
4824 * megasas_issue_init_mfi - Initializes the FW
4825 * @instance: Adapter soft state
4826 *
4827 * Issues the INIT MFI cmd
4828 */
4829 static int
4830 megasas_issue_init_mfi(struct megasas_instance *instance)
4831 {
4832 __le32 context;
4833 struct megasas_cmd *cmd;
4834 struct megasas_init_frame *init_frame;
4835 struct megasas_init_queue_info *initq_info;
4836 dma_addr_t init_frame_h;
4837 dma_addr_t initq_info_h;
4838
4839 /*
4840 * Prepare a init frame. Note the init frame points to queue info
4841 * structure. Each frame has SGL allocated after first 64 bytes. For
4842 * this frame - since we don't need any SGL - we use SGL's space as
4843 * queue info structure
4844 *
4845 * We will not get a NULL command below. We just created the pool.
4846 */
4847 cmd = megasas_get_cmd(instance);
4848
4849 init_frame = (struct megasas_init_frame *)cmd->frame;
4850 initq_info = (struct megasas_init_queue_info *)
4851 ((unsigned long)init_frame + 64);
4852
4853 init_frame_h = cmd->frame_phys_addr;
4854 initq_info_h = init_frame_h + 64;
4855
4856 context = init_frame->context;
4857 memset(init_frame, 0, MEGAMFI_FRAME_SIZE);
4858 memset(initq_info, 0, sizeof(struct megasas_init_queue_info));
4859 init_frame->context = context;
4860
4861 initq_info->reply_queue_entries = cpu_to_le32(instance->max_fw_cmds + 1);
4862 initq_info->reply_queue_start_phys_addr_lo = cpu_to_le32(instance->reply_queue_h);
4863
4864 initq_info->producer_index_phys_addr_lo = cpu_to_le32(instance->producer_h);
4865 initq_info->consumer_index_phys_addr_lo = cpu_to_le32(instance->consumer_h);
4866
4867 init_frame->cmd = MFI_CMD_INIT;
4868 init_frame->cmd_status = MFI_STAT_INVALID_STATUS;
4869 init_frame->queue_info_new_phys_addr_lo =
4870 cpu_to_le32(lower_32_bits(initq_info_h));
4871 init_frame->queue_info_new_phys_addr_hi =
4872 cpu_to_le32(upper_32_bits(initq_info_h));
4873
4874 init_frame->data_xfer_len = cpu_to_le32(sizeof(struct megasas_init_queue_info));
4875
4876 /*
4877 * disable the intr before firing the init frame to FW
4878 */
4879 instance->instancet->disable_intr(instance);
4880
4881 /*
4882 * Issue the init frame in polled mode
4883 */
4884
4885 if (megasas_issue_polled(instance, cmd)) {
4886 dev_err(&instance->pdev->dev, "Failed to init firmware\n");
4887 megasas_return_cmd(instance, cmd);
4888 goto fail_fw_init;
4889 }
4890
4891 megasas_return_cmd(instance, cmd);
4892
4893 return 0;
4894
4895 fail_fw_init:
4896 return -EINVAL;
4897 }
4898
4899 static u32
4900 megasas_init_adapter_mfi(struct megasas_instance *instance)
4901 {
4902 struct megasas_register_set __iomem *reg_set;
4903 u32 context_sz;
4904 u32 reply_q_sz;
4905
4906 reg_set = instance->reg_set;
4907
4908 /*
4909 * Get various operational parameters from status register
4910 */
4911 instance->max_fw_cmds = instance->instancet->read_fw_status_reg(reg_set) & 0x00FFFF;
4912 /*
4913 * Reduce the max supported cmds by 1. This is to ensure that the
4914 * reply_q_sz (1 more than the max cmd that driver may send)
4915 * does not exceed max cmds that the FW can support
4916 */
4917 instance->max_fw_cmds = instance->max_fw_cmds-1;
4918 instance->max_mfi_cmds = instance->max_fw_cmds;
4919 instance->max_num_sge = (instance->instancet->read_fw_status_reg(reg_set) & 0xFF0000) >>
4920 0x10;
4921 /*
4922 * For MFI skinny adapters, MEGASAS_SKINNY_INT_CMDS commands
4923 * are reserved for IOCTL + driver's internal DCMDs.
4924 */
4925 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
4926 (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY)) {
4927 instance->max_scsi_cmds = (instance->max_fw_cmds -
4928 MEGASAS_SKINNY_INT_CMDS);
4929 sema_init(&instance->ioctl_sem, MEGASAS_SKINNY_INT_CMDS);
4930 } else {
4931 instance->max_scsi_cmds = (instance->max_fw_cmds -
4932 MEGASAS_INT_CMDS);
4933 sema_init(&instance->ioctl_sem, (MEGASAS_MFI_IOCTL_CMDS));
4934 }
4935
4936 instance->cur_can_queue = instance->max_scsi_cmds;
4937 /*
4938 * Create a pool of commands
4939 */
4940 if (megasas_alloc_cmds(instance))
4941 goto fail_alloc_cmds;
4942
4943 /*
4944 * Allocate memory for reply queue. Length of reply queue should
4945 * be _one_ more than the maximum commands handled by the firmware.
4946 *
4947 * Note: When FW completes commands, it places corresponding contex
4948 * values in this circular reply queue. This circular queue is a fairly
4949 * typical producer-consumer queue. FW is the producer (of completed
4950 * commands) and the driver is the consumer.
4951 */
4952 context_sz = sizeof(u32);
4953 reply_q_sz = context_sz * (instance->max_fw_cmds + 1);
4954
4955 instance->reply_queue = pci_alloc_consistent(instance->pdev,
4956 reply_q_sz,
4957 &instance->reply_queue_h);
4958
4959 if (!instance->reply_queue) {
4960 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Out of DMA mem for reply queue\n");
4961 goto fail_reply_queue;
4962 }
4963
4964 if (megasas_issue_init_mfi(instance))
4965 goto fail_fw_init;
4966
4967 if (megasas_get_ctrl_info(instance)) {
4968 dev_err(&instance->pdev->dev, "(%d): Could get controller info "
4969 "Fail from %s %d\n", instance->unique_id,
4970 __func__, __LINE__);
4971 goto fail_fw_init;
4972 }
4973
4974 instance->fw_support_ieee = 0;
4975 instance->fw_support_ieee =
4976 (instance->instancet->read_fw_status_reg(reg_set) &
4977 0x04000000);
4978
4979 dev_notice(&instance->pdev->dev, "megasas_init_mfi: fw_support_ieee=%d",
4980 instance->fw_support_ieee);
4981
4982 if (instance->fw_support_ieee)
4983 instance->flag_ieee = 1;
4984
4985 return 0;
4986
4987 fail_fw_init:
4988
4989 pci_free_consistent(instance->pdev, reply_q_sz,
4990 instance->reply_queue, instance->reply_queue_h);
4991 fail_reply_queue:
4992 megasas_free_cmds(instance);
4993
4994 fail_alloc_cmds:
4995 return 1;
4996 }
4997
4998 /*
4999 * megasas_setup_irqs_ioapic - register legacy interrupts.
5000 * @instance: Adapter soft state
5001 *
5002 * Do not enable interrupt, only setup ISRs.
5003 *
5004 * Return 0 on success.
5005 */
5006 static int
5007 megasas_setup_irqs_ioapic(struct megasas_instance *instance)
5008 {
5009 struct pci_dev *pdev;
5010
5011 pdev = instance->pdev;
5012 instance->irq_context[0].instance = instance;
5013 instance->irq_context[0].MSIxIndex = 0;
5014 if (request_irq(pci_irq_vector(pdev, 0),
5015 instance->instancet->service_isr, IRQF_SHARED,
5016 "megasas", &instance->irq_context[0])) {
5017 dev_err(&instance->pdev->dev,
5018 "Failed to register IRQ from %s %d\n",
5019 __func__, __LINE__);
5020 return -1;
5021 }
5022 return 0;
5023 }
5024
5025 /**
5026 * megasas_setup_irqs_msix - register MSI-x interrupts.
5027 * @instance: Adapter soft state
5028 * @is_probe: Driver probe check
5029 *
5030 * Do not enable interrupt, only setup ISRs.
5031 *
5032 * Return 0 on success.
5033 */
5034 static int
5035 megasas_setup_irqs_msix(struct megasas_instance *instance, u8 is_probe)
5036 {
5037 int i, j;
5038 struct pci_dev *pdev;
5039
5040 pdev = instance->pdev;
5041
5042 /* Try MSI-x */
5043 for (i = 0; i < instance->msix_vectors; i++) {
5044 instance->irq_context[i].instance = instance;
5045 instance->irq_context[i].MSIxIndex = i;
5046 if (request_irq(pci_irq_vector(pdev, i),
5047 instance->instancet->service_isr, 0, "megasas",
5048 &instance->irq_context[i])) {
5049 dev_err(&instance->pdev->dev,
5050 "Failed to register IRQ for vector %d.\n", i);
5051 for (j = 0; j < i; j++)
5052 free_irq(pci_irq_vector(pdev, j),
5053 &instance->irq_context[j]);
5054 /* Retry irq register for IO_APIC*/
5055 instance->msix_vectors = 0;
5056 if (is_probe) {
5057 pci_free_irq_vectors(instance->pdev);
5058 return megasas_setup_irqs_ioapic(instance);
5059 } else {
5060 return -1;
5061 }
5062 }
5063 }
5064 return 0;
5065 }
5066
5067 /*
5068 * megasas_destroy_irqs- unregister interrupts.
5069 * @instance: Adapter soft state
5070 * return: void
5071 */
5072 static void
5073 megasas_destroy_irqs(struct megasas_instance *instance) {
5074
5075 int i;
5076
5077 if (instance->msix_vectors)
5078 for (i = 0; i < instance->msix_vectors; i++) {
5079 free_irq(pci_irq_vector(instance->pdev, i),
5080 &instance->irq_context[i]);
5081 }
5082 else
5083 free_irq(pci_irq_vector(instance->pdev, 0),
5084 &instance->irq_context[0]);
5085 }
5086
5087 /**
5088 * megasas_setup_jbod_map - setup jbod map for FP seq_number.
5089 * @instance: Adapter soft state
5090 * @is_probe: Driver probe check
5091 *
5092 * Return 0 on success.
5093 */
5094 void
5095 megasas_setup_jbod_map(struct megasas_instance *instance)
5096 {
5097 int i;
5098 struct fusion_context *fusion = instance->ctrl_context;
5099 u32 pd_seq_map_sz;
5100
5101 pd_seq_map_sz = sizeof(struct MR_PD_CFG_SEQ_NUM_SYNC) +
5102 (sizeof(struct MR_PD_CFG_SEQ) * (MAX_PHYSICAL_DEVICES - 1));
5103
5104 if (reset_devices || !fusion ||
5105 !instance->ctrl_info_buf->adapterOperations3.useSeqNumJbodFP) {
5106 dev_info(&instance->pdev->dev,
5107 "Jbod map is not supported %s %d\n",
5108 __func__, __LINE__);
5109 instance->use_seqnum_jbod_fp = false;
5110 return;
5111 }
5112
5113 if (fusion->pd_seq_sync[0])
5114 goto skip_alloc;
5115
5116 for (i = 0; i < JBOD_MAPS_COUNT; i++) {
5117 fusion->pd_seq_sync[i] = dma_alloc_coherent
5118 (&instance->pdev->dev, pd_seq_map_sz,
5119 &fusion->pd_seq_phys[i], GFP_KERNEL);
5120 if (!fusion->pd_seq_sync[i]) {
5121 dev_err(&instance->pdev->dev,
5122 "Failed to allocate memory from %s %d\n",
5123 __func__, __LINE__);
5124 if (i == 1) {
5125 dma_free_coherent(&instance->pdev->dev,
5126 pd_seq_map_sz, fusion->pd_seq_sync[0],
5127 fusion->pd_seq_phys[0]);
5128 fusion->pd_seq_sync[0] = NULL;
5129 }
5130 instance->use_seqnum_jbod_fp = false;
5131 return;
5132 }
5133 }
5134
5135 skip_alloc:
5136 if (!megasas_sync_pd_seq_num(instance, false) &&
5137 !megasas_sync_pd_seq_num(instance, true))
5138 instance->use_seqnum_jbod_fp = true;
5139 else
5140 instance->use_seqnum_jbod_fp = false;
5141 }
5142
5143 static void megasas_setup_reply_map(struct megasas_instance *instance)
5144 {
5145 const struct cpumask *mask;
5146 unsigned int queue, cpu;
5147
5148 for (queue = 0; queue < instance->msix_vectors; queue++) {
5149 mask = pci_irq_get_affinity(instance->pdev, queue);
5150 if (!mask)
5151 goto fallback;
5152
5153 for_each_cpu(cpu, mask)
5154 instance->reply_map[cpu] = queue;
5155 }
5156 return;
5157
5158 fallback:
5159 for_each_possible_cpu(cpu)
5160 instance->reply_map[cpu] = cpu % instance->msix_vectors;
5161 }
5162
5163 /**
5164 * megasas_init_fw - Initializes the FW
5165 * @instance: Adapter soft state
5166 *
5167 * This is the main function for initializing firmware
5168 */
5169
5170 static int megasas_init_fw(struct megasas_instance *instance)
5171 {
5172 u32 max_sectors_1;
5173 u32 max_sectors_2, tmp_sectors, msix_enable;
5174 u32 scratch_pad_2, scratch_pad_3, scratch_pad_4;
5175 resource_size_t base_addr;
5176 struct megasas_register_set __iomem *reg_set;
5177 struct megasas_ctrl_info *ctrl_info = NULL;
5178 unsigned long bar_list;
5179 int i, j, loop, fw_msix_count = 0;
5180 struct IOV_111 *iovPtr;
5181 struct fusion_context *fusion;
5182
5183 fusion = instance->ctrl_context;
5184
5185 /* Find first memory bar */
5186 bar_list = pci_select_bars(instance->pdev, IORESOURCE_MEM);
5187 instance->bar = find_first_bit(&bar_list, BITS_PER_LONG);
5188 if (pci_request_selected_regions(instance->pdev, 1<<instance->bar,
5189 "megasas: LSI")) {
5190 dev_printk(KERN_DEBUG, &instance->pdev->dev, "IO memory region busy!\n");
5191 return -EBUSY;
5192 }
5193
5194 base_addr = pci_resource_start(instance->pdev, instance->bar);
5195 instance->reg_set = ioremap_nocache(base_addr, 8192);
5196
5197 if (!instance->reg_set) {
5198 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to map IO mem\n");
5199 goto fail_ioremap;
5200 }
5201
5202 reg_set = instance->reg_set;
5203
5204 if (instance->adapter_type != MFI_SERIES)
5205 instance->instancet = &megasas_instance_template_fusion;
5206 else {
5207 switch (instance->pdev->device) {
5208 case PCI_DEVICE_ID_LSI_SAS1078R:
5209 case PCI_DEVICE_ID_LSI_SAS1078DE:
5210 instance->instancet = &megasas_instance_template_ppc;
5211 break;
5212 case PCI_DEVICE_ID_LSI_SAS1078GEN2:
5213 case PCI_DEVICE_ID_LSI_SAS0079GEN2:
5214 instance->instancet = &megasas_instance_template_gen2;
5215 break;
5216 case PCI_DEVICE_ID_LSI_SAS0073SKINNY:
5217 case PCI_DEVICE_ID_LSI_SAS0071SKINNY:
5218 instance->instancet = &megasas_instance_template_skinny;
5219 break;
5220 case PCI_DEVICE_ID_LSI_SAS1064R:
5221 case PCI_DEVICE_ID_DELL_PERC5:
5222 default:
5223 instance->instancet = &megasas_instance_template_xscale;
5224 instance->pd_list_not_supported = 1;
5225 break;
5226 }
5227 }
5228
5229 if (megasas_transition_to_ready(instance, 0)) {
5230 atomic_set(&instance->fw_reset_no_pci_access, 1);
5231 instance->instancet->adp_reset
5232 (instance, instance->reg_set);
5233 atomic_set(&instance->fw_reset_no_pci_access, 0);
5234 dev_info(&instance->pdev->dev,
5235 "FW restarted successfully from %s!\n",
5236 __func__);
5237
5238 /*waitting for about 30 second before retry*/
5239 ssleep(30);
5240
5241 if (megasas_transition_to_ready(instance, 0))
5242 goto fail_ready_state;
5243 }
5244
5245 megasas_init_ctrl_params(instance);
5246
5247 if (megasas_set_dma_mask(instance))
5248 goto fail_ready_state;
5249
5250 if (megasas_alloc_ctrl_mem(instance))
5251 goto fail_alloc_dma_buf;
5252
5253 if (megasas_alloc_ctrl_dma_buffers(instance))
5254 goto fail_alloc_dma_buf;
5255
5256 fusion = instance->ctrl_context;
5257
5258 if (instance->adapter_type == VENTURA_SERIES) {
5259 scratch_pad_3 =
5260 readl(&instance->reg_set->outbound_scratch_pad_3);
5261 instance->max_raid_mapsize = ((scratch_pad_3 >>
5262 MR_MAX_RAID_MAP_SIZE_OFFSET_SHIFT) &
5263 MR_MAX_RAID_MAP_SIZE_MASK);
5264 }
5265
5266 /* Check if MSI-X is supported while in ready state */
5267 msix_enable = (instance->instancet->read_fw_status_reg(reg_set) &
5268 0x4000000) >> 0x1a;
5269 if (msix_enable && !msix_disable) {
5270 int irq_flags = PCI_IRQ_MSIX;
5271
5272 scratch_pad_2 = readl
5273 (&instance->reg_set->outbound_scratch_pad_2);
5274 /* Check max MSI-X vectors */
5275 if (fusion) {
5276 if (instance->adapter_type == THUNDERBOLT_SERIES) {
5277 /* Thunderbolt Series*/
5278 instance->msix_vectors = (scratch_pad_2
5279 & MR_MAX_REPLY_QUEUES_OFFSET) + 1;
5280 fw_msix_count = instance->msix_vectors;
5281 } else { /* Invader series supports more than 8 MSI-x vectors*/
5282 instance->msix_vectors = ((scratch_pad_2
5283 & MR_MAX_REPLY_QUEUES_EXT_OFFSET)
5284 >> MR_MAX_REPLY_QUEUES_EXT_OFFSET_SHIFT) + 1;
5285 if (instance->msix_vectors > 16)
5286 instance->msix_combined = true;
5287
5288 if (rdpq_enable)
5289 instance->is_rdpq = (scratch_pad_2 & MR_RDPQ_MODE_OFFSET) ?
5290 1 : 0;
5291 fw_msix_count = instance->msix_vectors;
5292 /* Save 1-15 reply post index address to local memory
5293 * Index 0 is already saved from reg offset
5294 * MPI2_REPLY_POST_HOST_INDEX_OFFSET
5295 */
5296 for (loop = 1; loop < MR_MAX_MSIX_REG_ARRAY; loop++) {
5297 instance->reply_post_host_index_addr[loop] =
5298 (u32 __iomem *)
5299 ((u8 __iomem *)instance->reg_set +
5300 MPI2_SUP_REPLY_POST_HOST_INDEX_OFFSET
5301 + (loop * 0x10));
5302 }
5303 }
5304 if (msix_vectors)
5305 instance->msix_vectors = min(msix_vectors,
5306 instance->msix_vectors);
5307 } else /* MFI adapters */
5308 instance->msix_vectors = 1;
5309 /* Don't bother allocating more MSI-X vectors than cpus */
5310 instance->msix_vectors = min(instance->msix_vectors,
5311 (unsigned int)num_online_cpus());
5312 if (smp_affinity_enable)
5313 irq_flags |= PCI_IRQ_AFFINITY;
5314 i = pci_alloc_irq_vectors(instance->pdev, 1,
5315 instance->msix_vectors, irq_flags);
5316 if (i > 0)
5317 instance->msix_vectors = i;
5318 else
5319 instance->msix_vectors = 0;
5320 }
5321 /*
5322 * MSI-X host index 0 is common for all adapter.
5323 * It is used for all MPT based Adapters.
5324 */
5325 if (instance->msix_combined) {
5326 instance->reply_post_host_index_addr[0] =
5327 (u32 *)((u8 *)instance->reg_set +
5328 MPI2_SUP_REPLY_POST_HOST_INDEX_OFFSET);
5329 } else {
5330 instance->reply_post_host_index_addr[0] =
5331 (u32 *)((u8 *)instance->reg_set +
5332 MPI2_REPLY_POST_HOST_INDEX_OFFSET);
5333 }
5334
5335 if (!instance->msix_vectors) {
5336 i = pci_alloc_irq_vectors(instance->pdev, 1, 1, PCI_IRQ_LEGACY);
5337 if (i < 0)
5338 goto fail_setup_irqs;
5339 }
5340
5341 megasas_setup_reply_map(instance);
5342
5343 dev_info(&instance->pdev->dev,
5344 "firmware supports msix\t: (%d)", fw_msix_count);
5345 dev_info(&instance->pdev->dev,
5346 "current msix/online cpus\t: (%d/%d)\n",
5347 instance->msix_vectors, (unsigned int)num_online_cpus());
5348 dev_info(&instance->pdev->dev,
5349 "RDPQ mode\t: (%s)\n", instance->is_rdpq ? "enabled" : "disabled");
5350
5351 tasklet_init(&instance->isr_tasklet, instance->instancet->tasklet,
5352 (unsigned long)instance);
5353
5354 /*
5355 * Below are default value for legacy Firmware.
5356 * non-fusion based controllers
5357 */
5358 instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES;
5359 instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES;
5360 /* Get operational params, sge flags, send init cmd to controller */
5361 if (instance->instancet->init_adapter(instance))
5362 goto fail_init_adapter;
5363
5364 if (instance->adapter_type == VENTURA_SERIES) {
5365 scratch_pad_4 =
5366 readl(&instance->reg_set->outbound_scratch_pad_4);
5367 if ((scratch_pad_4 & MR_NVME_PAGE_SIZE_MASK) >=
5368 MR_DEFAULT_NVME_PAGE_SHIFT)
5369 instance->nvme_page_size =
5370 (1 << (scratch_pad_4 & MR_NVME_PAGE_SIZE_MASK));
5371
5372 dev_info(&instance->pdev->dev,
5373 "NVME page size\t: (%d)\n", instance->nvme_page_size);
5374 }
5375
5376 if (instance->msix_vectors ?
5377 megasas_setup_irqs_msix(instance, 1) :
5378 megasas_setup_irqs_ioapic(instance))
5379 goto fail_init_adapter;
5380
5381 instance->instancet->enable_intr(instance);
5382
5383 dev_info(&instance->pdev->dev, "INIT adapter done\n");
5384
5385 megasas_setup_jbod_map(instance);
5386
5387 /** for passthrough
5388 * the following function will get the PD LIST.
5389 */
5390 memset(instance->pd_list, 0,
5391 (MEGASAS_MAX_PD * sizeof(struct megasas_pd_list)));
5392 if (megasas_get_pd_list(instance) < 0) {
5393 dev_err(&instance->pdev->dev, "failed to get PD list\n");
5394 goto fail_get_ld_pd_list;
5395 }
5396
5397 memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS);
5398
5399 /* stream detection initialization */
5400 if (instance->adapter_type == VENTURA_SERIES) {
5401 fusion->stream_detect_by_ld =
5402 kzalloc(sizeof(struct LD_STREAM_DETECT *)
5403 * MAX_LOGICAL_DRIVES_EXT,
5404 GFP_KERNEL);
5405 if (!fusion->stream_detect_by_ld) {
5406 dev_err(&instance->pdev->dev,
5407 "unable to allocate stream detection for pool of LDs\n");
5408 goto fail_get_ld_pd_list;
5409 }
5410 for (i = 0; i < MAX_LOGICAL_DRIVES_EXT; ++i) {
5411 fusion->stream_detect_by_ld[i] =
5412 kmalloc(sizeof(struct LD_STREAM_DETECT),
5413 GFP_KERNEL);
5414 if (!fusion->stream_detect_by_ld[i]) {
5415 dev_err(&instance->pdev->dev,
5416 "unable to allocate stream detect by LD\n ");
5417 for (j = 0; j < i; ++j)
5418 kfree(fusion->stream_detect_by_ld[j]);
5419 kfree(fusion->stream_detect_by_ld);
5420 fusion->stream_detect_by_ld = NULL;
5421 goto fail_get_ld_pd_list;
5422 }
5423 fusion->stream_detect_by_ld[i]->mru_bit_map
5424 = MR_STREAM_BITMAP;
5425 }
5426 }
5427
5428 if (megasas_ld_list_query(instance,
5429 MR_LD_QUERY_TYPE_EXPOSED_TO_HOST))
5430 goto fail_get_ld_pd_list;
5431
5432 /*
5433 * Compute the max allowed sectors per IO: The controller info has two
5434 * limits on max sectors. Driver should use the minimum of these two.
5435 *
5436 * 1 << stripe_sz_ops.min = max sectors per strip
5437 *
5438 * Note that older firmwares ( < FW ver 30) didn't report information
5439 * to calculate max_sectors_1. So the number ended up as zero always.
5440 */
5441 tmp_sectors = 0;
5442 ctrl_info = instance->ctrl_info_buf;
5443
5444 max_sectors_1 = (1 << ctrl_info->stripe_sz_ops.min) *
5445 le16_to_cpu(ctrl_info->max_strips_per_io);
5446 max_sectors_2 = le32_to_cpu(ctrl_info->max_request_size);
5447
5448 tmp_sectors = min_t(u32, max_sectors_1, max_sectors_2);
5449
5450 instance->peerIsPresent = ctrl_info->cluster.peerIsPresent;
5451 instance->passive = ctrl_info->cluster.passive;
5452 memcpy(instance->clusterId, ctrl_info->clusterId, sizeof(instance->clusterId));
5453 instance->UnevenSpanSupport =
5454 ctrl_info->adapterOperations2.supportUnevenSpans;
5455 if (instance->UnevenSpanSupport) {
5456 struct fusion_context *fusion = instance->ctrl_context;
5457 if (MR_ValidateMapInfo(instance))
5458 fusion->fast_path_io = 1;
5459 else
5460 fusion->fast_path_io = 0;
5461
5462 }
5463 if (ctrl_info->host_interface.SRIOV) {
5464 instance->requestorId = ctrl_info->iov.requestorId;
5465 if (instance->pdev->device == PCI_DEVICE_ID_LSI_PLASMA) {
5466 if (!ctrl_info->adapterOperations2.activePassive)
5467 instance->PlasmaFW111 = 1;
5468
5469 dev_info(&instance->pdev->dev, "SR-IOV: firmware type: %s\n",
5470 instance->PlasmaFW111 ? "1.11" : "new");
5471
5472 if (instance->PlasmaFW111) {
5473 iovPtr = (struct IOV_111 *)
5474 ((unsigned char *)ctrl_info + IOV_111_OFFSET);
5475 instance->requestorId = iovPtr->requestorId;
5476 }
5477 }
5478 dev_info(&instance->pdev->dev, "SRIOV: VF requestorId %d\n",
5479 instance->requestorId);
5480 }
5481
5482 instance->crash_dump_fw_support =
5483 ctrl_info->adapterOperations3.supportCrashDump;
5484 instance->crash_dump_drv_support =
5485 (instance->crash_dump_fw_support &&
5486 instance->crash_dump_buf);
5487 if (instance->crash_dump_drv_support)
5488 megasas_set_crash_dump_params(instance,
5489 MR_CRASH_BUF_TURN_OFF);
5490
5491 else {
5492 if (instance->crash_dump_buf)
5493 pci_free_consistent(instance->pdev,
5494 CRASH_DMA_BUF_SIZE,
5495 instance->crash_dump_buf,
5496 instance->crash_dump_h);
5497 instance->crash_dump_buf = NULL;
5498 }
5499
5500
5501 dev_info(&instance->pdev->dev,
5502 "pci id\t\t: (0x%04x)/(0x%04x)/(0x%04x)/(0x%04x)\n",
5503 le16_to_cpu(ctrl_info->pci.vendor_id),
5504 le16_to_cpu(ctrl_info->pci.device_id),
5505 le16_to_cpu(ctrl_info->pci.sub_vendor_id),
5506 le16_to_cpu(ctrl_info->pci.sub_device_id));
5507 dev_info(&instance->pdev->dev, "unevenspan support : %s\n",
5508 instance->UnevenSpanSupport ? "yes" : "no");
5509 dev_info(&instance->pdev->dev, "firmware crash dump : %s\n",
5510 instance->crash_dump_drv_support ? "yes" : "no");
5511 dev_info(&instance->pdev->dev, "jbod sync map : %s\n",
5512 instance->use_seqnum_jbod_fp ? "yes" : "no");
5513
5514
5515 instance->max_sectors_per_req = instance->max_num_sge *
5516 SGE_BUFFER_SIZE / 512;
5517 if (tmp_sectors && (instance->max_sectors_per_req > tmp_sectors))
5518 instance->max_sectors_per_req = tmp_sectors;
5519
5520 /* Check for valid throttlequeuedepth module parameter */
5521 if (throttlequeuedepth &&
5522 throttlequeuedepth <= instance->max_scsi_cmds)
5523 instance->throttlequeuedepth = throttlequeuedepth;
5524 else
5525 instance->throttlequeuedepth =
5526 MEGASAS_THROTTLE_QUEUE_DEPTH;
5527
5528 if ((resetwaittime < 1) ||
5529 (resetwaittime > MEGASAS_RESET_WAIT_TIME))
5530 resetwaittime = MEGASAS_RESET_WAIT_TIME;
5531
5532 if ((scmd_timeout < 10) || (scmd_timeout > MEGASAS_DEFAULT_CMD_TIMEOUT))
5533 scmd_timeout = MEGASAS_DEFAULT_CMD_TIMEOUT;
5534
5535 /* Launch SR-IOV heartbeat timer */
5536 if (instance->requestorId) {
5537 if (!megasas_sriov_start_heartbeat(instance, 1))
5538 megasas_start_timer(instance);
5539 else
5540 instance->skip_heartbeat_timer_del = 1;
5541 }
5542
5543 return 0;
5544
5545 fail_get_ld_pd_list:
5546 instance->instancet->disable_intr(instance);
5547 fail_init_adapter:
5548 megasas_destroy_irqs(instance);
5549 fail_setup_irqs:
5550 if (instance->msix_vectors)
5551 pci_free_irq_vectors(instance->pdev);
5552 instance->msix_vectors = 0;
5553 fail_alloc_dma_buf:
5554 megasas_free_ctrl_dma_buffers(instance);
5555 megasas_free_ctrl_mem(instance);
5556 fail_ready_state:
5557 iounmap(instance->reg_set);
5558
5559 fail_ioremap:
5560 pci_release_selected_regions(instance->pdev, 1<<instance->bar);
5561
5562 dev_err(&instance->pdev->dev, "Failed from %s %d\n",
5563 __func__, __LINE__);
5564 return -EINVAL;
5565 }
5566
5567 /**
5568 * megasas_release_mfi - Reverses the FW initialization
5569 * @instance: Adapter soft state
5570 */
5571 static void megasas_release_mfi(struct megasas_instance *instance)
5572 {
5573 u32 reply_q_sz = sizeof(u32) *(instance->max_mfi_cmds + 1);
5574
5575 if (instance->reply_queue)
5576 pci_free_consistent(instance->pdev, reply_q_sz,
5577 instance->reply_queue, instance->reply_queue_h);
5578
5579 megasas_free_cmds(instance);
5580
5581 iounmap(instance->reg_set);
5582
5583 pci_release_selected_regions(instance->pdev, 1<<instance->bar);
5584 }
5585
5586 /**
5587 * megasas_get_seq_num - Gets latest event sequence numbers
5588 * @instance: Adapter soft state
5589 * @eli: FW event log sequence numbers information
5590 *
5591 * FW maintains a log of all events in a non-volatile area. Upper layers would
5592 * usually find out the latest sequence number of the events, the seq number at
5593 * the boot etc. They would "read" all the events below the latest seq number
5594 * by issuing a direct fw cmd (DCMD). For the future events (beyond latest seq
5595 * number), they would subsribe to AEN (asynchronous event notification) and
5596 * wait for the events to happen.
5597 */
5598 static int
5599 megasas_get_seq_num(struct megasas_instance *instance,
5600 struct megasas_evt_log_info *eli)
5601 {
5602 struct megasas_cmd *cmd;
5603 struct megasas_dcmd_frame *dcmd;
5604 struct megasas_evt_log_info *el_info;
5605 dma_addr_t el_info_h = 0;
5606
5607 cmd = megasas_get_cmd(instance);
5608
5609 if (!cmd) {
5610 return -ENOMEM;
5611 }
5612
5613 dcmd = &cmd->frame->dcmd;
5614 el_info = pci_alloc_consistent(instance->pdev,
5615 sizeof(struct megasas_evt_log_info),
5616 &el_info_h);
5617
5618 if (!el_info) {
5619 megasas_return_cmd(instance, cmd);
5620 return -ENOMEM;
5621 }
5622
5623 memset(el_info, 0, sizeof(*el_info));
5624 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
5625
5626 dcmd->cmd = MFI_CMD_DCMD;
5627 dcmd->cmd_status = 0x0;
5628 dcmd->sge_count = 1;
5629 dcmd->flags = MFI_FRAME_DIR_READ;
5630 dcmd->timeout = 0;
5631 dcmd->pad_0 = 0;
5632 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct megasas_evt_log_info));
5633 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_EVENT_GET_INFO);
5634
5635 megasas_set_dma_settings(instance, dcmd, el_info_h,
5636 sizeof(struct megasas_evt_log_info));
5637
5638 if (megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS) ==
5639 DCMD_SUCCESS) {
5640 /*
5641 * Copy the data back into callers buffer
5642 */
5643 eli->newest_seq_num = el_info->newest_seq_num;
5644 eli->oldest_seq_num = el_info->oldest_seq_num;
5645 eli->clear_seq_num = el_info->clear_seq_num;
5646 eli->shutdown_seq_num = el_info->shutdown_seq_num;
5647 eli->boot_seq_num = el_info->boot_seq_num;
5648 } else
5649 dev_err(&instance->pdev->dev, "DCMD failed "
5650 "from %s\n", __func__);
5651
5652 pci_free_consistent(instance->pdev, sizeof(struct megasas_evt_log_info),
5653 el_info, el_info_h);
5654
5655 megasas_return_cmd(instance, cmd);
5656
5657 return 0;
5658 }
5659
5660 /**
5661 * megasas_register_aen - Registers for asynchronous event notification
5662 * @instance: Adapter soft state
5663 * @seq_num: The starting sequence number
5664 * @class_locale: Class of the event
5665 *
5666 * This function subscribes for AEN for events beyond the @seq_num. It requests
5667 * to be notified if and only if the event is of type @class_locale
5668 */
5669 static int
5670 megasas_register_aen(struct megasas_instance *instance, u32 seq_num,
5671 u32 class_locale_word)
5672 {
5673 int ret_val;
5674 struct megasas_cmd *cmd;
5675 struct megasas_dcmd_frame *dcmd;
5676 union megasas_evt_class_locale curr_aen;
5677 union megasas_evt_class_locale prev_aen;
5678
5679 /*
5680 * If there an AEN pending already (aen_cmd), check if the
5681 * class_locale of that pending AEN is inclusive of the new
5682 * AEN request we currently have. If it is, then we don't have
5683 * to do anything. In other words, whichever events the current
5684 * AEN request is subscribing to, have already been subscribed
5685 * to.
5686 *
5687 * If the old_cmd is _not_ inclusive, then we have to abort
5688 * that command, form a class_locale that is superset of both
5689 * old and current and re-issue to the FW
5690 */
5691
5692 curr_aen.word = class_locale_word;
5693
5694 if (instance->aen_cmd) {
5695
5696 prev_aen.word =
5697 le32_to_cpu(instance->aen_cmd->frame->dcmd.mbox.w[1]);
5698
5699 if ((curr_aen.members.class < MFI_EVT_CLASS_DEBUG) ||
5700 (curr_aen.members.class > MFI_EVT_CLASS_DEAD)) {
5701 dev_info(&instance->pdev->dev,
5702 "%s %d out of range class %d send by application\n",
5703 __func__, __LINE__, curr_aen.members.class);
5704 return 0;
5705 }
5706
5707 /*
5708 * A class whose enum value is smaller is inclusive of all
5709 * higher values. If a PROGRESS (= -1) was previously
5710 * registered, then a new registration requests for higher
5711 * classes need not be sent to FW. They are automatically
5712 * included.
5713 *
5714 * Locale numbers don't have such hierarchy. They are bitmap
5715 * values
5716 */
5717 if ((prev_aen.members.class <= curr_aen.members.class) &&
5718 !((prev_aen.members.locale & curr_aen.members.locale) ^
5719 curr_aen.members.locale)) {
5720 /*
5721 * Previously issued event registration includes
5722 * current request. Nothing to do.
5723 */
5724 return 0;
5725 } else {
5726 curr_aen.members.locale |= prev_aen.members.locale;
5727
5728 if (prev_aen.members.class < curr_aen.members.class)
5729 curr_aen.members.class = prev_aen.members.class;
5730
5731 instance->aen_cmd->abort_aen = 1;
5732 ret_val = megasas_issue_blocked_abort_cmd(instance,
5733 instance->
5734 aen_cmd, 30);
5735
5736 if (ret_val) {
5737 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to abort "
5738 "previous AEN command\n");
5739 return ret_val;
5740 }
5741 }
5742 }
5743
5744 cmd = megasas_get_cmd(instance);
5745
5746 if (!cmd)
5747 return -ENOMEM;
5748
5749 dcmd = &cmd->frame->dcmd;
5750
5751 memset(instance->evt_detail, 0, sizeof(struct megasas_evt_detail));
5752
5753 /*
5754 * Prepare DCMD for aen registration
5755 */
5756 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
5757
5758 dcmd->cmd = MFI_CMD_DCMD;
5759 dcmd->cmd_status = 0x0;
5760 dcmd->sge_count = 1;
5761 dcmd->flags = MFI_FRAME_DIR_READ;
5762 dcmd->timeout = 0;
5763 dcmd->pad_0 = 0;
5764 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct megasas_evt_detail));
5765 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_EVENT_WAIT);
5766 dcmd->mbox.w[0] = cpu_to_le32(seq_num);
5767 instance->last_seq_num = seq_num;
5768 dcmd->mbox.w[1] = cpu_to_le32(curr_aen.word);
5769
5770 megasas_set_dma_settings(instance, dcmd, instance->evt_detail_h,
5771 sizeof(struct megasas_evt_detail));
5772
5773 if (instance->aen_cmd != NULL) {
5774 megasas_return_cmd(instance, cmd);
5775 return 0;
5776 }
5777
5778 /*
5779 * Store reference to the cmd used to register for AEN. When an
5780 * application wants us to register for AEN, we have to abort this
5781 * cmd and re-register with a new EVENT LOCALE supplied by that app
5782 */
5783 instance->aen_cmd = cmd;
5784
5785 /*
5786 * Issue the aen registration frame
5787 */
5788 instance->instancet->issue_dcmd(instance, cmd);
5789
5790 return 0;
5791 }
5792
5793 /* megasas_get_target_prop - Send DCMD with below details to firmware.
5794 *
5795 * This DCMD will fetch few properties of LD/system PD defined
5796 * in MR_TARGET_DEV_PROPERTIES. eg. Queue Depth, MDTS value.
5797 *
5798 * DCMD send by drivers whenever new target is added to the OS.
5799 *
5800 * dcmd.opcode - MR_DCMD_DEV_GET_TARGET_PROP
5801 * dcmd.mbox.b[0] - DCMD is to be fired for LD or system PD.
5802 * 0 = system PD, 1 = LD.
5803 * dcmd.mbox.s[1] - TargetID for LD/system PD.
5804 * dcmd.sge IN - Pointer to return MR_TARGET_DEV_PROPERTIES.
5805 *
5806 * @instance: Adapter soft state
5807 * @sdev: OS provided scsi device
5808 *
5809 * Returns 0 on success non-zero on failure.
5810 */
5811 static int
5812 megasas_get_target_prop(struct megasas_instance *instance,
5813 struct scsi_device *sdev)
5814 {
5815 int ret;
5816 struct megasas_cmd *cmd;
5817 struct megasas_dcmd_frame *dcmd;
5818 u16 targetId = (sdev->channel % 2) + sdev->id;
5819
5820 cmd = megasas_get_cmd(instance);
5821
5822 if (!cmd) {
5823 dev_err(&instance->pdev->dev,
5824 "Failed to get cmd %s\n", __func__);
5825 return -ENOMEM;
5826 }
5827
5828 dcmd = &cmd->frame->dcmd;
5829
5830 memset(instance->tgt_prop, 0, sizeof(*instance->tgt_prop));
5831 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
5832 dcmd->mbox.b[0] = MEGASAS_IS_LOGICAL(sdev);
5833
5834 dcmd->mbox.s[1] = cpu_to_le16(targetId);
5835 dcmd->cmd = MFI_CMD_DCMD;
5836 dcmd->cmd_status = 0xFF;
5837 dcmd->sge_count = 1;
5838 dcmd->flags = MFI_FRAME_DIR_READ;
5839 dcmd->timeout = 0;
5840 dcmd->pad_0 = 0;
5841 dcmd->data_xfer_len =
5842 cpu_to_le32(sizeof(struct MR_TARGET_PROPERTIES));
5843 dcmd->opcode = cpu_to_le32(MR_DCMD_DRV_GET_TARGET_PROP);
5844
5845 megasas_set_dma_settings(instance, dcmd, instance->tgt_prop_h,
5846 sizeof(struct MR_TARGET_PROPERTIES));
5847
5848 if ((instance->adapter_type != MFI_SERIES) &&
5849 !instance->mask_interrupts)
5850 ret = megasas_issue_blocked_cmd(instance,
5851 cmd, MFI_IO_TIMEOUT_SECS);
5852 else
5853 ret = megasas_issue_polled(instance, cmd);
5854
5855 switch (ret) {
5856 case DCMD_TIMEOUT:
5857 switch (dcmd_timeout_ocr_possible(instance)) {
5858 case INITIATE_OCR:
5859 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
5860 megasas_reset_fusion(instance->host,
5861 MFI_IO_TIMEOUT_OCR);
5862 break;
5863 case KILL_ADAPTER:
5864 megaraid_sas_kill_hba(instance);
5865 break;
5866 case IGNORE_TIMEOUT:
5867 dev_info(&instance->pdev->dev,
5868 "Ignore DCMD timeout: %s %d\n",
5869 __func__, __LINE__);
5870 break;
5871 }
5872 break;
5873
5874 default:
5875 megasas_return_cmd(instance, cmd);
5876 }
5877 if (ret != DCMD_SUCCESS)
5878 dev_err(&instance->pdev->dev,
5879 "return from %s %d return value %d\n",
5880 __func__, __LINE__, ret);
5881
5882 return ret;
5883 }
5884
5885 /**
5886 * megasas_start_aen - Subscribes to AEN during driver load time
5887 * @instance: Adapter soft state
5888 */
5889 static int megasas_start_aen(struct megasas_instance *instance)
5890 {
5891 struct megasas_evt_log_info eli;
5892 union megasas_evt_class_locale class_locale;
5893
5894 /*
5895 * Get the latest sequence number from FW
5896 */
5897 memset(&eli, 0, sizeof(eli));
5898
5899 if (megasas_get_seq_num(instance, &eli))
5900 return -1;
5901
5902 /*
5903 * Register AEN with FW for latest sequence number plus 1
5904 */
5905 class_locale.members.reserved = 0;
5906 class_locale.members.locale = MR_EVT_LOCALE_ALL;
5907 class_locale.members.class = MR_EVT_CLASS_DEBUG;
5908
5909 return megasas_register_aen(instance,
5910 le32_to_cpu(eli.newest_seq_num) + 1,
5911 class_locale.word);
5912 }
5913
5914 /**
5915 * megasas_io_attach - Attaches this driver to SCSI mid-layer
5916 * @instance: Adapter soft state
5917 */
5918 static int megasas_io_attach(struct megasas_instance *instance)
5919 {
5920 struct Scsi_Host *host = instance->host;
5921
5922 /*
5923 * Export parameters required by SCSI mid-layer
5924 */
5925 host->unique_id = instance->unique_id;
5926 host->can_queue = instance->max_scsi_cmds;
5927 host->this_id = instance->init_id;
5928 host->sg_tablesize = instance->max_num_sge;
5929
5930 if (instance->fw_support_ieee)
5931 instance->max_sectors_per_req = MEGASAS_MAX_SECTORS_IEEE;
5932
5933 /*
5934 * Check if the module parameter value for max_sectors can be used
5935 */
5936 if (max_sectors && max_sectors < instance->max_sectors_per_req)
5937 instance->max_sectors_per_req = max_sectors;
5938 else {
5939 if (max_sectors) {
5940 if (((instance->pdev->device ==
5941 PCI_DEVICE_ID_LSI_SAS1078GEN2) ||
5942 (instance->pdev->device ==
5943 PCI_DEVICE_ID_LSI_SAS0079GEN2)) &&
5944 (max_sectors <= MEGASAS_MAX_SECTORS)) {
5945 instance->max_sectors_per_req = max_sectors;
5946 } else {
5947 dev_info(&instance->pdev->dev, "max_sectors should be > 0"
5948 "and <= %d (or < 1MB for GEN2 controller)\n",
5949 instance->max_sectors_per_req);
5950 }
5951 }
5952 }
5953
5954 host->max_sectors = instance->max_sectors_per_req;
5955 host->cmd_per_lun = MEGASAS_DEFAULT_CMD_PER_LUN;
5956 host->max_channel = MEGASAS_MAX_CHANNELS - 1;
5957 host->max_id = MEGASAS_MAX_DEV_PER_CHANNEL;
5958 host->max_lun = MEGASAS_MAX_LUN;
5959 host->max_cmd_len = 16;
5960
5961 /*
5962 * Notify the mid-layer about the new controller
5963 */
5964 if (scsi_add_host(host, &instance->pdev->dev)) {
5965 dev_err(&instance->pdev->dev,
5966 "Failed to add host from %s %d\n",
5967 __func__, __LINE__);
5968 return -ENODEV;
5969 }
5970
5971 return 0;
5972 }
5973
5974 /**
5975 * megasas_set_dma_mask - Set DMA mask for supported controllers
5976 *
5977 * @instance: Adapter soft state
5978 * Description:
5979 *
5980 * For Ventura, driver/FW will operate in 63bit DMA addresses.
5981 *
5982 * For invader-
5983 * By default, driver/FW will operate in 32bit DMA addresses
5984 * for consistent DMA mapping but if 32 bit consistent
5985 * DMA mask fails, driver will try with 63 bit consistent
5986 * mask provided FW is true 63bit DMA capable
5987 *
5988 * For older controllers(Thunderbolt and MFI based adapters)-
5989 * driver/FW will operate in 32 bit consistent DMA addresses.
5990 */
5991 static int
5992 megasas_set_dma_mask(struct megasas_instance *instance)
5993 {
5994 u64 consistent_mask;
5995 struct pci_dev *pdev;
5996 u32 scratch_pad_2;
5997
5998 pdev = instance->pdev;
5999 consistent_mask = (instance->adapter_type == VENTURA_SERIES) ?
6000 DMA_BIT_MASK(63) : DMA_BIT_MASK(32);
6001
6002 if (IS_DMA64) {
6003 if (dma_set_mask(&pdev->dev, DMA_BIT_MASK(63)) &&
6004 dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)))
6005 goto fail_set_dma_mask;
6006
6007 if ((*pdev->dev.dma_mask == DMA_BIT_MASK(63)) &&
6008 (dma_set_coherent_mask(&pdev->dev, consistent_mask) &&
6009 dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)))) {
6010 /*
6011 * If 32 bit DMA mask fails, then try for 64 bit mask
6012 * for FW capable of handling 64 bit DMA.
6013 */
6014 scratch_pad_2 = readl
6015 (&instance->reg_set->outbound_scratch_pad_2);
6016
6017 if (!(scratch_pad_2 & MR_CAN_HANDLE_64_BIT_DMA_OFFSET))
6018 goto fail_set_dma_mask;
6019 else if (dma_set_mask_and_coherent(&pdev->dev,
6020 DMA_BIT_MASK(63)))
6021 goto fail_set_dma_mask;
6022 }
6023 } else if (dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)))
6024 goto fail_set_dma_mask;
6025
6026 if (pdev->dev.coherent_dma_mask == DMA_BIT_MASK(32))
6027 instance->consistent_mask_64bit = false;
6028 else
6029 instance->consistent_mask_64bit = true;
6030
6031 dev_info(&pdev->dev, "%s bit DMA mask and %s bit consistent mask\n",
6032 ((*pdev->dev.dma_mask == DMA_BIT_MASK(64)) ? "63" : "32"),
6033 (instance->consistent_mask_64bit ? "63" : "32"));
6034
6035 return 0;
6036
6037 fail_set_dma_mask:
6038 dev_err(&pdev->dev, "Failed to set DMA mask\n");
6039 return -1;
6040
6041 }
6042
6043 /*
6044 * megasas_set_adapter_type - Set adapter type.
6045 * Supported controllers can be divided in
6046 * 4 categories- enum MR_ADAPTER_TYPE {
6047 * MFI_SERIES = 1,
6048 * THUNDERBOLT_SERIES = 2,
6049 * INVADER_SERIES = 3,
6050 * VENTURA_SERIES = 4,
6051 * };
6052 * @instance: Adapter soft state
6053 * return: void
6054 */
6055 static inline void megasas_set_adapter_type(struct megasas_instance *instance)
6056 {
6057 if ((instance->pdev->vendor == PCI_VENDOR_ID_DELL) &&
6058 (instance->pdev->device == PCI_DEVICE_ID_DELL_PERC5)) {
6059 instance->adapter_type = MFI_SERIES;
6060 } else {
6061 switch (instance->pdev->device) {
6062 case PCI_DEVICE_ID_LSI_VENTURA:
6063 case PCI_DEVICE_ID_LSI_CRUSADER:
6064 case PCI_DEVICE_ID_LSI_HARPOON:
6065 case PCI_DEVICE_ID_LSI_TOMCAT:
6066 case PCI_DEVICE_ID_LSI_VENTURA_4PORT:
6067 case PCI_DEVICE_ID_LSI_CRUSADER_4PORT:
6068 instance->adapter_type = VENTURA_SERIES;
6069 break;
6070 case PCI_DEVICE_ID_LSI_FUSION:
6071 case PCI_DEVICE_ID_LSI_PLASMA:
6072 instance->adapter_type = THUNDERBOLT_SERIES;
6073 break;
6074 case PCI_DEVICE_ID_LSI_INVADER:
6075 case PCI_DEVICE_ID_LSI_INTRUDER:
6076 case PCI_DEVICE_ID_LSI_INTRUDER_24:
6077 case PCI_DEVICE_ID_LSI_CUTLASS_52:
6078 case PCI_DEVICE_ID_LSI_CUTLASS_53:
6079 case PCI_DEVICE_ID_LSI_FURY:
6080 instance->adapter_type = INVADER_SERIES;
6081 break;
6082 default: /* For all other supported controllers */
6083 instance->adapter_type = MFI_SERIES;
6084 break;
6085 }
6086 }
6087 }
6088
6089 static inline int megasas_alloc_mfi_ctrl_mem(struct megasas_instance *instance)
6090 {
6091 instance->producer = pci_alloc_consistent(instance->pdev, sizeof(u32),
6092 &instance->producer_h);
6093 instance->consumer = pci_alloc_consistent(instance->pdev, sizeof(u32),
6094 &instance->consumer_h);
6095
6096 if (!instance->producer || !instance->consumer) {
6097 dev_err(&instance->pdev->dev,
6098 "Failed to allocate memory for producer, consumer\n");
6099 return -1;
6100 }
6101
6102 *instance->producer = 0;
6103 *instance->consumer = 0;
6104 return 0;
6105 }
6106
6107 /**
6108 * megasas_alloc_ctrl_mem - Allocate per controller memory for core data
6109 * structures which are not common across MFI
6110 * adapters and fusion adapters.
6111 * For MFI based adapters, allocate producer and
6112 * consumer buffers. For fusion adapters, allocate
6113 * memory for fusion context.
6114 * @instance: Adapter soft state
6115 * return: 0 for SUCCESS
6116 */
6117 static int megasas_alloc_ctrl_mem(struct megasas_instance *instance)
6118 {
6119 instance->reply_map = kzalloc(sizeof(unsigned int) * nr_cpu_ids,
6120 GFP_KERNEL);
6121 if (!instance->reply_map)
6122 return -ENOMEM;
6123
6124 switch (instance->adapter_type) {
6125 case MFI_SERIES:
6126 if (megasas_alloc_mfi_ctrl_mem(instance))
6127 goto fail;
6128 break;
6129 case VENTURA_SERIES:
6130 case THUNDERBOLT_SERIES:
6131 case INVADER_SERIES:
6132 if (megasas_alloc_fusion_context(instance))
6133 goto fail;
6134 break;
6135 }
6136
6137 return 0;
6138 fail:
6139 kfree(instance->reply_map);
6140 instance->reply_map = NULL;
6141 return -ENOMEM;
6142 }
6143
6144 /*
6145 * megasas_free_ctrl_mem - Free fusion context for fusion adapters and
6146 * producer, consumer buffers for MFI adapters
6147 *
6148 * @instance - Adapter soft instance
6149 *
6150 */
6151 static inline void megasas_free_ctrl_mem(struct megasas_instance *instance)
6152 {
6153 kfree(instance->reply_map);
6154 if (instance->adapter_type == MFI_SERIES) {
6155 if (instance->producer)
6156 pci_free_consistent(instance->pdev, sizeof(u32),
6157 instance->producer,
6158 instance->producer_h);
6159 if (instance->consumer)
6160 pci_free_consistent(instance->pdev, sizeof(u32),
6161 instance->consumer,
6162 instance->consumer_h);
6163 } else {
6164 megasas_free_fusion_context(instance);
6165 }
6166 }
6167
6168 /**
6169 * megasas_alloc_ctrl_dma_buffers - Allocate consistent DMA buffers during
6170 * driver load time
6171 *
6172 * @instance- Adapter soft instance
6173 * @return- O for SUCCESS
6174 */
6175 static inline
6176 int megasas_alloc_ctrl_dma_buffers(struct megasas_instance *instance)
6177 {
6178 struct pci_dev *pdev = instance->pdev;
6179 struct fusion_context *fusion = instance->ctrl_context;
6180
6181 instance->evt_detail =
6182 pci_alloc_consistent(pdev,
6183 sizeof(struct megasas_evt_detail),
6184 &instance->evt_detail_h);
6185
6186 if (!instance->evt_detail) {
6187 dev_err(&instance->pdev->dev,
6188 "Failed to allocate event detail buffer\n");
6189 return -ENOMEM;
6190 }
6191
6192 if (fusion) {
6193 fusion->ioc_init_request =
6194 dma_alloc_coherent(&pdev->dev,
6195 sizeof(struct MPI2_IOC_INIT_REQUEST),
6196 &fusion->ioc_init_request_phys,
6197 GFP_KERNEL);
6198
6199 if (!fusion->ioc_init_request) {
6200 dev_err(&pdev->dev,
6201 "Failed to allocate PD list buffer\n");
6202 return -ENOMEM;
6203 }
6204 }
6205
6206 instance->pd_list_buf =
6207 pci_alloc_consistent(pdev,
6208 MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST),
6209 &instance->pd_list_buf_h);
6210
6211 if (!instance->pd_list_buf) {
6212 dev_err(&pdev->dev, "Failed to allocate PD list buffer\n");
6213 return -ENOMEM;
6214 }
6215
6216 instance->ctrl_info_buf =
6217 pci_alloc_consistent(pdev,
6218 sizeof(struct megasas_ctrl_info),
6219 &instance->ctrl_info_buf_h);
6220
6221 if (!instance->ctrl_info_buf) {
6222 dev_err(&pdev->dev,
6223 "Failed to allocate controller info buffer\n");
6224 return -ENOMEM;
6225 }
6226
6227 instance->ld_list_buf =
6228 pci_alloc_consistent(pdev,
6229 sizeof(struct MR_LD_LIST),
6230 &instance->ld_list_buf_h);
6231
6232 if (!instance->ld_list_buf) {
6233 dev_err(&pdev->dev, "Failed to allocate LD list buffer\n");
6234 return -ENOMEM;
6235 }
6236
6237 instance->ld_targetid_list_buf =
6238 pci_alloc_consistent(pdev,
6239 sizeof(struct MR_LD_TARGETID_LIST),
6240 &instance->ld_targetid_list_buf_h);
6241
6242 if (!instance->ld_targetid_list_buf) {
6243 dev_err(&pdev->dev,
6244 "Failed to allocate LD targetid list buffer\n");
6245 return -ENOMEM;
6246 }
6247
6248 if (!reset_devices) {
6249 instance->system_info_buf =
6250 pci_alloc_consistent(pdev,
6251 sizeof(struct MR_DRV_SYSTEM_INFO),
6252 &instance->system_info_h);
6253 instance->pd_info =
6254 pci_alloc_consistent(pdev,
6255 sizeof(struct MR_PD_INFO),
6256 &instance->pd_info_h);
6257 instance->tgt_prop =
6258 pci_alloc_consistent(pdev,
6259 sizeof(struct MR_TARGET_PROPERTIES),
6260 &instance->tgt_prop_h);
6261 instance->crash_dump_buf =
6262 pci_alloc_consistent(pdev,
6263 CRASH_DMA_BUF_SIZE,
6264 &instance->crash_dump_h);
6265
6266 if (!instance->system_info_buf)
6267 dev_err(&instance->pdev->dev,
6268 "Failed to allocate system info buffer\n");
6269
6270 if (!instance->pd_info)
6271 dev_err(&instance->pdev->dev,
6272 "Failed to allocate pd_info buffer\n");
6273
6274 if (!instance->tgt_prop)
6275 dev_err(&instance->pdev->dev,
6276 "Failed to allocate tgt_prop buffer\n");
6277
6278 if (!instance->crash_dump_buf)
6279 dev_err(&instance->pdev->dev,
6280 "Failed to allocate crash dump buffer\n");
6281 }
6282
6283 return 0;
6284 }
6285
6286 /*
6287 * megasas_free_ctrl_dma_buffers - Free consistent DMA buffers allocated
6288 * during driver load time
6289 *
6290 * @instance- Adapter soft instance
6291 *
6292 */
6293 static inline
6294 void megasas_free_ctrl_dma_buffers(struct megasas_instance *instance)
6295 {
6296 struct pci_dev *pdev = instance->pdev;
6297 struct fusion_context *fusion = instance->ctrl_context;
6298
6299 if (instance->evt_detail)
6300 pci_free_consistent(pdev, sizeof(struct megasas_evt_detail),
6301 instance->evt_detail,
6302 instance->evt_detail_h);
6303
6304 if (fusion && fusion->ioc_init_request)
6305 dma_free_coherent(&pdev->dev,
6306 sizeof(struct MPI2_IOC_INIT_REQUEST),
6307 fusion->ioc_init_request,
6308 fusion->ioc_init_request_phys);
6309
6310 if (instance->pd_list_buf)
6311 pci_free_consistent(pdev,
6312 MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST),
6313 instance->pd_list_buf,
6314 instance->pd_list_buf_h);
6315
6316 if (instance->ld_list_buf)
6317 pci_free_consistent(pdev, sizeof(struct MR_LD_LIST),
6318 instance->ld_list_buf,
6319 instance->ld_list_buf_h);
6320
6321 if (instance->ld_targetid_list_buf)
6322 pci_free_consistent(pdev, sizeof(struct MR_LD_TARGETID_LIST),
6323 instance->ld_targetid_list_buf,
6324 instance->ld_targetid_list_buf_h);
6325
6326 if (instance->ctrl_info_buf)
6327 pci_free_consistent(pdev, sizeof(struct megasas_ctrl_info),
6328 instance->ctrl_info_buf,
6329 instance->ctrl_info_buf_h);
6330
6331 if (instance->system_info_buf)
6332 pci_free_consistent(pdev, sizeof(struct MR_DRV_SYSTEM_INFO),
6333 instance->system_info_buf,
6334 instance->system_info_h);
6335
6336 if (instance->pd_info)
6337 pci_free_consistent(pdev, sizeof(struct MR_PD_INFO),
6338 instance->pd_info, instance->pd_info_h);
6339
6340 if (instance->tgt_prop)
6341 pci_free_consistent(pdev, sizeof(struct MR_TARGET_PROPERTIES),
6342 instance->tgt_prop, instance->tgt_prop_h);
6343
6344 if (instance->crash_dump_buf)
6345 pci_free_consistent(pdev, CRASH_DMA_BUF_SIZE,
6346 instance->crash_dump_buf,
6347 instance->crash_dump_h);
6348 }
6349
6350 /*
6351 * megasas_init_ctrl_params - Initialize controller's instance
6352 * parameters before FW init
6353 * @instance - Adapter soft instance
6354 * @return - void
6355 */
6356 static inline void megasas_init_ctrl_params(struct megasas_instance *instance)
6357 {
6358 instance->fw_crash_state = UNAVAILABLE;
6359
6360 megasas_poll_wait_aen = 0;
6361 instance->issuepend_done = 1;
6362 atomic_set(&instance->adprecovery, MEGASAS_HBA_OPERATIONAL);
6363
6364 /*
6365 * Initialize locks and queues
6366 */
6367 INIT_LIST_HEAD(&instance->cmd_pool);
6368 INIT_LIST_HEAD(&instance->internal_reset_pending_q);
6369
6370 atomic_set(&instance->fw_outstanding, 0);
6371
6372 init_waitqueue_head(&instance->int_cmd_wait_q);
6373 init_waitqueue_head(&instance->abort_cmd_wait_q);
6374
6375 spin_lock_init(&instance->crashdump_lock);
6376 spin_lock_init(&instance->mfi_pool_lock);
6377 spin_lock_init(&instance->hba_lock);
6378 spin_lock_init(&instance->stream_lock);
6379 spin_lock_init(&instance->completion_lock);
6380
6381 mutex_init(&instance->hba_mutex);
6382 mutex_init(&instance->reset_mutex);
6383
6384 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
6385 (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY))
6386 instance->flag_ieee = 1;
6387
6388 megasas_dbg_lvl = 0;
6389 instance->flag = 0;
6390 instance->unload = 1;
6391 instance->last_time = 0;
6392 instance->disableOnlineCtrlReset = 1;
6393 instance->UnevenSpanSupport = 0;
6394
6395 if (instance->adapter_type != MFI_SERIES) {
6396 INIT_WORK(&instance->work_init, megasas_fusion_ocr_wq);
6397 INIT_WORK(&instance->crash_init, megasas_fusion_crash_dump_wq);
6398 } else {
6399 INIT_WORK(&instance->work_init, process_fw_state_change_wq);
6400 }
6401 }
6402
6403 /**
6404 * megasas_probe_one - PCI hotplug entry point
6405 * @pdev: PCI device structure
6406 * @id: PCI ids of supported hotplugged adapter
6407 */
6408 static int megasas_probe_one(struct pci_dev *pdev,
6409 const struct pci_device_id *id)
6410 {
6411 int rval, pos;
6412 struct Scsi_Host *host;
6413 struct megasas_instance *instance;
6414 u16 control = 0;
6415
6416 /* Reset MSI-X in the kdump kernel */
6417 if (reset_devices) {
6418 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
6419 if (pos) {
6420 pci_read_config_word(pdev, pos + PCI_MSIX_FLAGS,
6421 &control);
6422 if (control & PCI_MSIX_FLAGS_ENABLE) {
6423 dev_info(&pdev->dev, "resetting MSI-X\n");
6424 pci_write_config_word(pdev,
6425 pos + PCI_MSIX_FLAGS,
6426 control &
6427 ~PCI_MSIX_FLAGS_ENABLE);
6428 }
6429 }
6430 }
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 return rval;
6439 }
6440
6441 pci_set_master(pdev);
6442
6443 host = scsi_host_alloc(&megasas_template,
6444 sizeof(struct megasas_instance));
6445
6446 if (!host) {
6447 dev_printk(KERN_DEBUG, &pdev->dev, "scsi_host_alloc failed\n");
6448 goto fail_alloc_instance;
6449 }
6450
6451 instance = (struct megasas_instance *)host->hostdata;
6452 memset(instance, 0, sizeof(*instance));
6453 atomic_set(&instance->fw_reset_no_pci_access, 0);
6454
6455 /*
6456 * Initialize PCI related and misc parameters
6457 */
6458 instance->pdev = pdev;
6459 instance->host = host;
6460 instance->unique_id = pdev->bus->number << 8 | pdev->devfn;
6461 instance->init_id = MEGASAS_DEFAULT_INIT_ID;
6462
6463 megasas_set_adapter_type(instance);
6464
6465 /*
6466 * Initialize MFI Firmware
6467 */
6468 if (megasas_init_fw(instance))
6469 goto fail_init_mfi;
6470
6471 if (instance->requestorId) {
6472 if (instance->PlasmaFW111) {
6473 instance->vf_affiliation_111 =
6474 pci_alloc_consistent(pdev, sizeof(struct MR_LD_VF_AFFILIATION_111),
6475 &instance->vf_affiliation_111_h);
6476 if (!instance->vf_affiliation_111)
6477 dev_warn(&pdev->dev, "Can't allocate "
6478 "memory for VF affiliation buffer\n");
6479 } else {
6480 instance->vf_affiliation =
6481 pci_alloc_consistent(pdev,
6482 (MAX_LOGICAL_DRIVES + 1) *
6483 sizeof(struct MR_LD_VF_AFFILIATION),
6484 &instance->vf_affiliation_h);
6485 if (!instance->vf_affiliation)
6486 dev_warn(&pdev->dev, "Can't allocate "
6487 "memory for VF affiliation buffer\n");
6488 }
6489 }
6490
6491 /*
6492 * Store instance in PCI softstate
6493 */
6494 pci_set_drvdata(pdev, instance);
6495
6496 /*
6497 * Add this controller to megasas_mgmt_info structure so that it
6498 * can be exported to management applications
6499 */
6500 megasas_mgmt_info.count++;
6501 megasas_mgmt_info.instance[megasas_mgmt_info.max_index] = instance;
6502 megasas_mgmt_info.max_index++;
6503
6504 /*
6505 * Register with SCSI mid-layer
6506 */
6507 if (megasas_io_attach(instance))
6508 goto fail_io_attach;
6509
6510 instance->unload = 0;
6511 /*
6512 * Trigger SCSI to scan our drives
6513 */
6514 scsi_scan_host(host);
6515
6516 /*
6517 * Initiate AEN (Asynchronous Event Notification)
6518 */
6519 if (megasas_start_aen(instance)) {
6520 dev_printk(KERN_DEBUG, &pdev->dev, "start aen failed\n");
6521 goto fail_start_aen;
6522 }
6523
6524 /* Get current SR-IOV LD/VF affiliation */
6525 if (instance->requestorId)
6526 megasas_get_ld_vf_affiliation(instance, 1);
6527
6528 return 0;
6529
6530 fail_start_aen:
6531 fail_io_attach:
6532 megasas_mgmt_info.count--;
6533 megasas_mgmt_info.max_index--;
6534 megasas_mgmt_info.instance[megasas_mgmt_info.max_index] = NULL;
6535
6536 instance->instancet->disable_intr(instance);
6537 megasas_destroy_irqs(instance);
6538
6539 if (instance->adapter_type != MFI_SERIES)
6540 megasas_release_fusion(instance);
6541 else
6542 megasas_release_mfi(instance);
6543 if (instance->msix_vectors)
6544 pci_free_irq_vectors(instance->pdev);
6545 fail_init_mfi:
6546 scsi_host_put(host);
6547 fail_alloc_instance:
6548 pci_disable_device(pdev);
6549
6550 return -ENODEV;
6551 }
6552
6553 /**
6554 * megasas_flush_cache - Requests FW to flush all its caches
6555 * @instance: Adapter soft state
6556 */
6557 static void megasas_flush_cache(struct megasas_instance *instance)
6558 {
6559 struct megasas_cmd *cmd;
6560 struct megasas_dcmd_frame *dcmd;
6561
6562 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR)
6563 return;
6564
6565 cmd = megasas_get_cmd(instance);
6566
6567 if (!cmd)
6568 return;
6569
6570 dcmd = &cmd->frame->dcmd;
6571
6572 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
6573
6574 dcmd->cmd = MFI_CMD_DCMD;
6575 dcmd->cmd_status = 0x0;
6576 dcmd->sge_count = 0;
6577 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_NONE);
6578 dcmd->timeout = 0;
6579 dcmd->pad_0 = 0;
6580 dcmd->data_xfer_len = 0;
6581 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_CACHE_FLUSH);
6582 dcmd->mbox.b[0] = MR_FLUSH_CTRL_CACHE | MR_FLUSH_DISK_CACHE;
6583
6584 if (megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS)
6585 != DCMD_SUCCESS) {
6586 dev_err(&instance->pdev->dev,
6587 "return from %s %d\n", __func__, __LINE__);
6588 return;
6589 }
6590
6591 megasas_return_cmd(instance, cmd);
6592 }
6593
6594 /**
6595 * megasas_shutdown_controller - Instructs FW to shutdown the controller
6596 * @instance: Adapter soft state
6597 * @opcode: Shutdown/Hibernate
6598 */
6599 static void megasas_shutdown_controller(struct megasas_instance *instance,
6600 u32 opcode)
6601 {
6602 struct megasas_cmd *cmd;
6603 struct megasas_dcmd_frame *dcmd;
6604
6605 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR)
6606 return;
6607
6608 cmd = megasas_get_cmd(instance);
6609
6610 if (!cmd)
6611 return;
6612
6613 if (instance->aen_cmd)
6614 megasas_issue_blocked_abort_cmd(instance,
6615 instance->aen_cmd, MFI_IO_TIMEOUT_SECS);
6616 if (instance->map_update_cmd)
6617 megasas_issue_blocked_abort_cmd(instance,
6618 instance->map_update_cmd, MFI_IO_TIMEOUT_SECS);
6619 if (instance->jbod_seq_cmd)
6620 megasas_issue_blocked_abort_cmd(instance,
6621 instance->jbod_seq_cmd, MFI_IO_TIMEOUT_SECS);
6622
6623 dcmd = &cmd->frame->dcmd;
6624
6625 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
6626
6627 dcmd->cmd = MFI_CMD_DCMD;
6628 dcmd->cmd_status = 0x0;
6629 dcmd->sge_count = 0;
6630 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_NONE);
6631 dcmd->timeout = 0;
6632 dcmd->pad_0 = 0;
6633 dcmd->data_xfer_len = 0;
6634 dcmd->opcode = cpu_to_le32(opcode);
6635
6636 if (megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS)
6637 != DCMD_SUCCESS) {
6638 dev_err(&instance->pdev->dev,
6639 "return from %s %d\n", __func__, __LINE__);
6640 return;
6641 }
6642
6643 megasas_return_cmd(instance, cmd);
6644 }
6645
6646 #ifdef CONFIG_PM
6647 /**
6648 * megasas_suspend - driver suspend entry point
6649 * @pdev: PCI device structure
6650 * @state: PCI power state to suspend routine
6651 */
6652 static int
6653 megasas_suspend(struct pci_dev *pdev, pm_message_t state)
6654 {
6655 struct Scsi_Host *host;
6656 struct megasas_instance *instance;
6657
6658 instance = pci_get_drvdata(pdev);
6659 host = instance->host;
6660 instance->unload = 1;
6661
6662 /* Shutdown SR-IOV heartbeat timer */
6663 if (instance->requestorId && !instance->skip_heartbeat_timer_del)
6664 del_timer_sync(&instance->sriov_heartbeat_timer);
6665
6666 megasas_flush_cache(instance);
6667 megasas_shutdown_controller(instance, MR_DCMD_HIBERNATE_SHUTDOWN);
6668
6669 /* cancel the delayed work if this work still in queue */
6670 if (instance->ev != NULL) {
6671 struct megasas_aen_event *ev = instance->ev;
6672 cancel_delayed_work_sync(&ev->hotplug_work);
6673 instance->ev = NULL;
6674 }
6675
6676 tasklet_kill(&instance->isr_tasklet);
6677
6678 pci_set_drvdata(instance->pdev, instance);
6679 instance->instancet->disable_intr(instance);
6680
6681 megasas_destroy_irqs(instance);
6682
6683 if (instance->msix_vectors)
6684 pci_free_irq_vectors(instance->pdev);
6685
6686 pci_save_state(pdev);
6687 pci_disable_device(pdev);
6688
6689 pci_set_power_state(pdev, pci_choose_state(pdev, state));
6690
6691 return 0;
6692 }
6693
6694 /**
6695 * megasas_resume- driver resume entry point
6696 * @pdev: PCI device structure
6697 */
6698 static int
6699 megasas_resume(struct pci_dev *pdev)
6700 {
6701 int rval;
6702 struct Scsi_Host *host;
6703 struct megasas_instance *instance;
6704 int irq_flags = PCI_IRQ_LEGACY;
6705
6706 instance = pci_get_drvdata(pdev);
6707 host = instance->host;
6708 pci_set_power_state(pdev, PCI_D0);
6709 pci_enable_wake(pdev, PCI_D0, 0);
6710 pci_restore_state(pdev);
6711
6712 /*
6713 * PCI prepping: enable device set bus mastering and dma mask
6714 */
6715 rval = pci_enable_device_mem(pdev);
6716
6717 if (rval) {
6718 dev_err(&pdev->dev, "Enable device failed\n");
6719 return rval;
6720 }
6721
6722 pci_set_master(pdev);
6723
6724 /*
6725 * We expect the FW state to be READY
6726 */
6727 if (megasas_transition_to_ready(instance, 0))
6728 goto fail_ready_state;
6729
6730 if (megasas_set_dma_mask(instance))
6731 goto fail_set_dma_mask;
6732
6733 /*
6734 * Initialize MFI Firmware
6735 */
6736
6737 atomic_set(&instance->fw_outstanding, 0);
6738
6739 /* Now re-enable MSI-X */
6740 if (instance->msix_vectors) {
6741 irq_flags = PCI_IRQ_MSIX;
6742 if (smp_affinity_enable)
6743 irq_flags |= PCI_IRQ_AFFINITY;
6744 }
6745 rval = pci_alloc_irq_vectors(instance->pdev, 1,
6746 instance->msix_vectors ?
6747 instance->msix_vectors : 1, irq_flags);
6748 if (rval < 0)
6749 goto fail_reenable_msix;
6750
6751 megasas_setup_reply_map(instance);
6752
6753 if (instance->adapter_type != MFI_SERIES) {
6754 megasas_reset_reply_desc(instance);
6755 if (megasas_ioc_init_fusion(instance)) {
6756 megasas_free_cmds(instance);
6757 megasas_free_cmds_fusion(instance);
6758 goto fail_init_mfi;
6759 }
6760 if (!megasas_get_map_info(instance))
6761 megasas_sync_map_info(instance);
6762 } else {
6763 *instance->producer = 0;
6764 *instance->consumer = 0;
6765 if (megasas_issue_init_mfi(instance))
6766 goto fail_init_mfi;
6767 }
6768
6769 if (megasas_get_ctrl_info(instance) != DCMD_SUCCESS)
6770 goto fail_init_mfi;
6771
6772 tasklet_init(&instance->isr_tasklet, instance->instancet->tasklet,
6773 (unsigned long)instance);
6774
6775 if (instance->msix_vectors ?
6776 megasas_setup_irqs_msix(instance, 0) :
6777 megasas_setup_irqs_ioapic(instance))
6778 goto fail_init_mfi;
6779
6780 /* Re-launch SR-IOV heartbeat timer */
6781 if (instance->requestorId) {
6782 if (!megasas_sriov_start_heartbeat(instance, 0))
6783 megasas_start_timer(instance);
6784 else {
6785 instance->skip_heartbeat_timer_del = 1;
6786 goto fail_init_mfi;
6787 }
6788 }
6789
6790 instance->instancet->enable_intr(instance);
6791 megasas_setup_jbod_map(instance);
6792 instance->unload = 0;
6793
6794 /*
6795 * Initiate AEN (Asynchronous Event Notification)
6796 */
6797 if (megasas_start_aen(instance))
6798 dev_err(&instance->pdev->dev, "Start AEN failed\n");
6799
6800 return 0;
6801
6802 fail_init_mfi:
6803 megasas_free_ctrl_dma_buffers(instance);
6804 megasas_free_ctrl_mem(instance);
6805 scsi_host_put(host);
6806
6807 fail_reenable_msix:
6808 fail_set_dma_mask:
6809 fail_ready_state:
6810
6811 pci_disable_device(pdev);
6812
6813 return -ENODEV;
6814 }
6815 #else
6816 #define megasas_suspend NULL
6817 #define megasas_resume NULL
6818 #endif
6819
6820 static inline int
6821 megasas_wait_for_adapter_operational(struct megasas_instance *instance)
6822 {
6823 int wait_time = MEGASAS_RESET_WAIT_TIME * 2;
6824 int i;
6825
6826 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR)
6827 return 1;
6828
6829 for (i = 0; i < wait_time; i++) {
6830 if (atomic_read(&instance->adprecovery) == MEGASAS_HBA_OPERATIONAL)
6831 break;
6832
6833 if (!(i % MEGASAS_RESET_NOTICE_INTERVAL))
6834 dev_notice(&instance->pdev->dev, "waiting for controller reset to finish\n");
6835
6836 msleep(1000);
6837 }
6838
6839 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) {
6840 dev_info(&instance->pdev->dev, "%s timed out while waiting for HBA to recover.\n",
6841 __func__);
6842 return 1;
6843 }
6844
6845 return 0;
6846 }
6847
6848 /**
6849 * megasas_detach_one - PCI hot"un"plug entry point
6850 * @pdev: PCI device structure
6851 */
6852 static void megasas_detach_one(struct pci_dev *pdev)
6853 {
6854 int i;
6855 struct Scsi_Host *host;
6856 struct megasas_instance *instance;
6857 struct fusion_context *fusion;
6858 u32 pd_seq_map_sz;
6859
6860 instance = pci_get_drvdata(pdev);
6861 host = instance->host;
6862 fusion = instance->ctrl_context;
6863
6864 /* Shutdown SR-IOV heartbeat timer */
6865 if (instance->requestorId && !instance->skip_heartbeat_timer_del)
6866 del_timer_sync(&instance->sriov_heartbeat_timer);
6867
6868 if (instance->fw_crash_state != UNAVAILABLE)
6869 megasas_free_host_crash_buffer(instance);
6870 scsi_remove_host(instance->host);
6871 instance->unload = 1;
6872
6873 if (megasas_wait_for_adapter_operational(instance))
6874 goto skip_firing_dcmds;
6875
6876 megasas_flush_cache(instance);
6877 megasas_shutdown_controller(instance, MR_DCMD_CTRL_SHUTDOWN);
6878
6879 skip_firing_dcmds:
6880 /* cancel the delayed work if this work still in queue*/
6881 if (instance->ev != NULL) {
6882 struct megasas_aen_event *ev = instance->ev;
6883 cancel_delayed_work_sync(&ev->hotplug_work);
6884 instance->ev = NULL;
6885 }
6886
6887 /* cancel all wait events */
6888 wake_up_all(&instance->int_cmd_wait_q);
6889
6890 tasklet_kill(&instance->isr_tasklet);
6891
6892 /*
6893 * Take the instance off the instance array. Note that we will not
6894 * decrement the max_index. We let this array be sparse array
6895 */
6896 for (i = 0; i < megasas_mgmt_info.max_index; i++) {
6897 if (megasas_mgmt_info.instance[i] == instance) {
6898 megasas_mgmt_info.count--;
6899 megasas_mgmt_info.instance[i] = NULL;
6900
6901 break;
6902 }
6903 }
6904
6905 instance->instancet->disable_intr(instance);
6906
6907 megasas_destroy_irqs(instance);
6908
6909 if (instance->msix_vectors)
6910 pci_free_irq_vectors(instance->pdev);
6911
6912 if (instance->adapter_type == VENTURA_SERIES) {
6913 for (i = 0; i < MAX_LOGICAL_DRIVES_EXT; ++i)
6914 kfree(fusion->stream_detect_by_ld[i]);
6915 kfree(fusion->stream_detect_by_ld);
6916 fusion->stream_detect_by_ld = NULL;
6917 }
6918
6919
6920 if (instance->adapter_type != MFI_SERIES) {
6921 megasas_release_fusion(instance);
6922 pd_seq_map_sz = sizeof(struct MR_PD_CFG_SEQ_NUM_SYNC) +
6923 (sizeof(struct MR_PD_CFG_SEQ) *
6924 (MAX_PHYSICAL_DEVICES - 1));
6925 for (i = 0; i < 2 ; i++) {
6926 if (fusion->ld_map[i])
6927 dma_free_coherent(&instance->pdev->dev,
6928 fusion->max_map_sz,
6929 fusion->ld_map[i],
6930 fusion->ld_map_phys[i]);
6931 if (fusion->ld_drv_map[i]) {
6932 if (is_vmalloc_addr(fusion->ld_drv_map[i]))
6933 vfree(fusion->ld_drv_map[i]);
6934 else
6935 free_pages((ulong)fusion->ld_drv_map[i],
6936 fusion->drv_map_pages);
6937 }
6938
6939 if (fusion->pd_seq_sync[i])
6940 dma_free_coherent(&instance->pdev->dev,
6941 pd_seq_map_sz,
6942 fusion->pd_seq_sync[i],
6943 fusion->pd_seq_phys[i]);
6944 }
6945 } else {
6946 megasas_release_mfi(instance);
6947 }
6948
6949 if (instance->vf_affiliation)
6950 pci_free_consistent(pdev, (MAX_LOGICAL_DRIVES + 1) *
6951 sizeof(struct MR_LD_VF_AFFILIATION),
6952 instance->vf_affiliation,
6953 instance->vf_affiliation_h);
6954
6955 if (instance->vf_affiliation_111)
6956 pci_free_consistent(pdev,
6957 sizeof(struct MR_LD_VF_AFFILIATION_111),
6958 instance->vf_affiliation_111,
6959 instance->vf_affiliation_111_h);
6960
6961 if (instance->hb_host_mem)
6962 pci_free_consistent(pdev, sizeof(struct MR_CTRL_HB_HOST_MEM),
6963 instance->hb_host_mem,
6964 instance->hb_host_mem_h);
6965
6966 megasas_free_ctrl_dma_buffers(instance);
6967
6968 megasas_free_ctrl_mem(instance);
6969
6970 scsi_host_put(host);
6971
6972 pci_disable_device(pdev);
6973 }
6974
6975 /**
6976 * megasas_shutdown - Shutdown entry point
6977 * @device: Generic device structure
6978 */
6979 static void megasas_shutdown(struct pci_dev *pdev)
6980 {
6981 struct megasas_instance *instance = pci_get_drvdata(pdev);
6982
6983 instance->unload = 1;
6984
6985 if (megasas_wait_for_adapter_operational(instance))
6986 goto skip_firing_dcmds;
6987
6988 megasas_flush_cache(instance);
6989 megasas_shutdown_controller(instance, MR_DCMD_CTRL_SHUTDOWN);
6990
6991 skip_firing_dcmds:
6992 instance->instancet->disable_intr(instance);
6993 megasas_destroy_irqs(instance);
6994
6995 if (instance->msix_vectors)
6996 pci_free_irq_vectors(instance->pdev);
6997 }
6998
6999 /**
7000 * megasas_mgmt_open - char node "open" entry point
7001 */
7002 static int megasas_mgmt_open(struct inode *inode, struct file *filep)
7003 {
7004 /*
7005 * Allow only those users with admin rights
7006 */
7007 if (!capable(CAP_SYS_ADMIN))
7008 return -EACCES;
7009
7010 return 0;
7011 }
7012
7013 /**
7014 * megasas_mgmt_fasync - Async notifier registration from applications
7015 *
7016 * This function adds the calling process to a driver global queue. When an
7017 * event occurs, SIGIO will be sent to all processes in this queue.
7018 */
7019 static int megasas_mgmt_fasync(int fd, struct file *filep, int mode)
7020 {
7021 int rc;
7022
7023 mutex_lock(&megasas_async_queue_mutex);
7024
7025 rc = fasync_helper(fd, filep, mode, &megasas_async_queue);
7026
7027 mutex_unlock(&megasas_async_queue_mutex);
7028
7029 if (rc >= 0) {
7030 /* For sanity check when we get ioctl */
7031 filep->private_data = filep;
7032 return 0;
7033 }
7034
7035 printk(KERN_DEBUG "megasas: fasync_helper failed [%d]\n", rc);
7036
7037 return rc;
7038 }
7039
7040 /**
7041 * megasas_mgmt_poll - char node "poll" entry point
7042 * */
7043 static unsigned int megasas_mgmt_poll(struct file *file, poll_table *wait)
7044 {
7045 unsigned int mask;
7046 unsigned long flags;
7047
7048 poll_wait(file, &megasas_poll_wait, wait);
7049 spin_lock_irqsave(&poll_aen_lock, flags);
7050 if (megasas_poll_wait_aen)
7051 mask = (POLLIN | POLLRDNORM);
7052 else
7053 mask = 0;
7054 megasas_poll_wait_aen = 0;
7055 spin_unlock_irqrestore(&poll_aen_lock, flags);
7056 return mask;
7057 }
7058
7059 /*
7060 * megasas_set_crash_dump_params_ioctl:
7061 * Send CRASH_DUMP_MODE DCMD to all controllers
7062 * @cmd: MFI command frame
7063 */
7064
7065 static int megasas_set_crash_dump_params_ioctl(struct megasas_cmd *cmd)
7066 {
7067 struct megasas_instance *local_instance;
7068 int i, error = 0;
7069 int crash_support;
7070
7071 crash_support = cmd->frame->dcmd.mbox.w[0];
7072
7073 for (i = 0; i < megasas_mgmt_info.max_index; i++) {
7074 local_instance = megasas_mgmt_info.instance[i];
7075 if (local_instance && local_instance->crash_dump_drv_support) {
7076 if ((atomic_read(&local_instance->adprecovery) ==
7077 MEGASAS_HBA_OPERATIONAL) &&
7078 !megasas_set_crash_dump_params(local_instance,
7079 crash_support)) {
7080 local_instance->crash_dump_app_support =
7081 crash_support;
7082 dev_info(&local_instance->pdev->dev,
7083 "Application firmware crash "
7084 "dump mode set success\n");
7085 error = 0;
7086 } else {
7087 dev_info(&local_instance->pdev->dev,
7088 "Application firmware crash "
7089 "dump mode set failed\n");
7090 error = -1;
7091 }
7092 }
7093 }
7094 return error;
7095 }
7096
7097 /**
7098 * megasas_mgmt_fw_ioctl - Issues management ioctls to FW
7099 * @instance: Adapter soft state
7100 * @argp: User's ioctl packet
7101 */
7102 static int
7103 megasas_mgmt_fw_ioctl(struct megasas_instance *instance,
7104 struct megasas_iocpacket __user * user_ioc,
7105 struct megasas_iocpacket *ioc)
7106 {
7107 struct megasas_sge64 *kern_sge64 = NULL;
7108 struct megasas_sge32 *kern_sge32 = NULL;
7109 struct megasas_cmd *cmd;
7110 void *kbuff_arr[MAX_IOCTL_SGE];
7111 dma_addr_t buf_handle = 0;
7112 int error = 0, i;
7113 void *sense = NULL;
7114 dma_addr_t sense_handle;
7115 unsigned long *sense_ptr;
7116 u32 opcode = 0;
7117
7118 memset(kbuff_arr, 0, sizeof(kbuff_arr));
7119
7120 if (ioc->sge_count > MAX_IOCTL_SGE) {
7121 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SGE count [%d] > max limit [%d]\n",
7122 ioc->sge_count, MAX_IOCTL_SGE);
7123 return -EINVAL;
7124 }
7125
7126 if (ioc->frame.hdr.cmd >= MFI_CMD_OP_COUNT) {
7127 dev_err(&instance->pdev->dev,
7128 "Received invalid ioctl command 0x%x\n",
7129 ioc->frame.hdr.cmd);
7130 return -ENOTSUPP;
7131 }
7132
7133 cmd = megasas_get_cmd(instance);
7134 if (!cmd) {
7135 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to get a cmd packet\n");
7136 return -ENOMEM;
7137 }
7138
7139 /*
7140 * User's IOCTL packet has 2 frames (maximum). Copy those two
7141 * frames into our cmd's frames. cmd->frame's context will get
7142 * overwritten when we copy from user's frames. So set that value
7143 * alone separately
7144 */
7145 memcpy(cmd->frame, ioc->frame.raw, 2 * MEGAMFI_FRAME_SIZE);
7146 cmd->frame->hdr.context = cpu_to_le32(cmd->index);
7147 cmd->frame->hdr.pad_0 = 0;
7148
7149 cmd->frame->hdr.flags &= (~MFI_FRAME_IEEE);
7150
7151 if (instance->consistent_mask_64bit)
7152 cmd->frame->hdr.flags |= cpu_to_le16((MFI_FRAME_SGL64 |
7153 MFI_FRAME_SENSE64));
7154 else
7155 cmd->frame->hdr.flags &= cpu_to_le16(~(MFI_FRAME_SGL64 |
7156 MFI_FRAME_SENSE64));
7157
7158 if (cmd->frame->hdr.cmd == MFI_CMD_DCMD)
7159 opcode = le32_to_cpu(cmd->frame->dcmd.opcode);
7160
7161 if (opcode == MR_DCMD_CTRL_SHUTDOWN) {
7162 if (megasas_get_ctrl_info(instance) != DCMD_SUCCESS) {
7163 megasas_return_cmd(instance, cmd);
7164 return -1;
7165 }
7166 }
7167
7168 if (opcode == MR_DRIVER_SET_APP_CRASHDUMP_MODE) {
7169 error = megasas_set_crash_dump_params_ioctl(cmd);
7170 megasas_return_cmd(instance, cmd);
7171 return error;
7172 }
7173
7174 /*
7175 * The management interface between applications and the fw uses
7176 * MFI frames. E.g, RAID configuration changes, LD property changes
7177 * etc are accomplishes through different kinds of MFI frames. The
7178 * driver needs to care only about substituting user buffers with
7179 * kernel buffers in SGLs. The location of SGL is embedded in the
7180 * struct iocpacket itself.
7181 */
7182 if (instance->consistent_mask_64bit)
7183 kern_sge64 = (struct megasas_sge64 *)
7184 ((unsigned long)cmd->frame + ioc->sgl_off);
7185 else
7186 kern_sge32 = (struct megasas_sge32 *)
7187 ((unsigned long)cmd->frame + ioc->sgl_off);
7188
7189 /*
7190 * For each user buffer, create a mirror buffer and copy in
7191 */
7192 for (i = 0; i < ioc->sge_count; i++) {
7193 if (!ioc->sgl[i].iov_len)
7194 continue;
7195
7196 kbuff_arr[i] = dma_alloc_coherent(&instance->pdev->dev,
7197 ioc->sgl[i].iov_len,
7198 &buf_handle, GFP_KERNEL);
7199 if (!kbuff_arr[i]) {
7200 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to alloc "
7201 "kernel SGL buffer for IOCTL\n");
7202 error = -ENOMEM;
7203 goto out;
7204 }
7205
7206 /*
7207 * We don't change the dma_coherent_mask, so
7208 * pci_alloc_consistent only returns 32bit addresses
7209 */
7210 if (instance->consistent_mask_64bit) {
7211 kern_sge64[i].phys_addr = cpu_to_le64(buf_handle);
7212 kern_sge64[i].length = cpu_to_le32(ioc->sgl[i].iov_len);
7213 } else {
7214 kern_sge32[i].phys_addr = cpu_to_le32(buf_handle);
7215 kern_sge32[i].length = cpu_to_le32(ioc->sgl[i].iov_len);
7216 }
7217
7218 /*
7219 * We created a kernel buffer corresponding to the
7220 * user buffer. Now copy in from the user buffer
7221 */
7222 if (copy_from_user(kbuff_arr[i], ioc->sgl[i].iov_base,
7223 (u32) (ioc->sgl[i].iov_len))) {
7224 error = -EFAULT;
7225 goto out;
7226 }
7227 }
7228
7229 if (ioc->sense_len) {
7230 sense = dma_alloc_coherent(&instance->pdev->dev, ioc->sense_len,
7231 &sense_handle, GFP_KERNEL);
7232 if (!sense) {
7233 error = -ENOMEM;
7234 goto out;
7235 }
7236
7237 sense_ptr =
7238 (unsigned long *) ((unsigned long)cmd->frame + ioc->sense_off);
7239 if (instance->consistent_mask_64bit)
7240 *sense_ptr = cpu_to_le64(sense_handle);
7241 else
7242 *sense_ptr = cpu_to_le32(sense_handle);
7243 }
7244
7245 /*
7246 * Set the sync_cmd flag so that the ISR knows not to complete this
7247 * cmd to the SCSI mid-layer
7248 */
7249 cmd->sync_cmd = 1;
7250 if (megasas_issue_blocked_cmd(instance, cmd, 0) == DCMD_NOT_FIRED) {
7251 cmd->sync_cmd = 0;
7252 dev_err(&instance->pdev->dev,
7253 "return -EBUSY from %s %d cmd 0x%x opcode 0x%x cmd->cmd_status_drv 0x%x\n",
7254 __func__, __LINE__, cmd->frame->hdr.cmd, opcode,
7255 cmd->cmd_status_drv);
7256 return -EBUSY;
7257 }
7258
7259 cmd->sync_cmd = 0;
7260
7261 if (instance->unload == 1) {
7262 dev_info(&instance->pdev->dev, "Driver unload is in progress "
7263 "don't submit data to application\n");
7264 goto out;
7265 }
7266 /*
7267 * copy out the kernel buffers to user buffers
7268 */
7269 for (i = 0; i < ioc->sge_count; i++) {
7270 if (copy_to_user(ioc->sgl[i].iov_base, kbuff_arr[i],
7271 ioc->sgl[i].iov_len)) {
7272 error = -EFAULT;
7273 goto out;
7274 }
7275 }
7276
7277 /*
7278 * copy out the sense
7279 */
7280 if (ioc->sense_len) {
7281 /*
7282 * sense_ptr points to the location that has the user
7283 * sense buffer address
7284 */
7285 sense_ptr = (unsigned long *) ((unsigned long)ioc->frame.raw +
7286 ioc->sense_off);
7287
7288 if (copy_to_user((void __user *)((unsigned long)
7289 get_unaligned((unsigned long *)sense_ptr)),
7290 sense, ioc->sense_len)) {
7291 dev_err(&instance->pdev->dev, "Failed to copy out to user "
7292 "sense data\n");
7293 error = -EFAULT;
7294 goto out;
7295 }
7296 }
7297
7298 /*
7299 * copy the status codes returned by the fw
7300 */
7301 if (copy_to_user(&user_ioc->frame.hdr.cmd_status,
7302 &cmd->frame->hdr.cmd_status, sizeof(u8))) {
7303 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Error copying out cmd_status\n");
7304 error = -EFAULT;
7305 }
7306
7307 out:
7308 if (sense) {
7309 dma_free_coherent(&instance->pdev->dev, ioc->sense_len,
7310 sense, sense_handle);
7311 }
7312
7313 for (i = 0; i < ioc->sge_count; i++) {
7314 if (kbuff_arr[i]) {
7315 if (instance->consistent_mask_64bit)
7316 dma_free_coherent(&instance->pdev->dev,
7317 le32_to_cpu(kern_sge64[i].length),
7318 kbuff_arr[i],
7319 le64_to_cpu(kern_sge64[i].phys_addr));
7320 else
7321 dma_free_coherent(&instance->pdev->dev,
7322 le32_to_cpu(kern_sge32[i].length),
7323 kbuff_arr[i],
7324 le32_to_cpu(kern_sge32[i].phys_addr));
7325 kbuff_arr[i] = NULL;
7326 }
7327 }
7328
7329 megasas_return_cmd(instance, cmd);
7330 return error;
7331 }
7332
7333 static int megasas_mgmt_ioctl_fw(struct file *file, unsigned long arg)
7334 {
7335 struct megasas_iocpacket __user *user_ioc =
7336 (struct megasas_iocpacket __user *)arg;
7337 struct megasas_iocpacket *ioc;
7338 struct megasas_instance *instance;
7339 int error;
7340 int i;
7341 unsigned long flags;
7342 u32 wait_time = MEGASAS_RESET_WAIT_TIME;
7343
7344 ioc = memdup_user(user_ioc, sizeof(*ioc));
7345 if (IS_ERR(ioc))
7346 return PTR_ERR(ioc);
7347
7348 instance = megasas_lookup_instance(ioc->host_no);
7349 if (!instance) {
7350 error = -ENODEV;
7351 goto out_kfree_ioc;
7352 }
7353
7354 /* Adjust ioctl wait time for VF mode */
7355 if (instance->requestorId)
7356 wait_time = MEGASAS_ROUTINE_WAIT_TIME_VF;
7357
7358 /* Block ioctls in VF mode */
7359 if (instance->requestorId && !allow_vf_ioctls) {
7360 error = -ENODEV;
7361 goto out_kfree_ioc;
7362 }
7363
7364 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
7365 dev_err(&instance->pdev->dev, "Controller in crit error\n");
7366 error = -ENODEV;
7367 goto out_kfree_ioc;
7368 }
7369
7370 if (instance->unload == 1) {
7371 error = -ENODEV;
7372 goto out_kfree_ioc;
7373 }
7374
7375 if (down_interruptible(&instance->ioctl_sem)) {
7376 error = -ERESTARTSYS;
7377 goto out_kfree_ioc;
7378 }
7379
7380 for (i = 0; i < wait_time; i++) {
7381
7382 spin_lock_irqsave(&instance->hba_lock, flags);
7383 if (atomic_read(&instance->adprecovery) == MEGASAS_HBA_OPERATIONAL) {
7384 spin_unlock_irqrestore(&instance->hba_lock, flags);
7385 break;
7386 }
7387 spin_unlock_irqrestore(&instance->hba_lock, flags);
7388
7389 if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) {
7390 dev_notice(&instance->pdev->dev, "waiting"
7391 "for controller reset to finish\n");
7392 }
7393
7394 msleep(1000);
7395 }
7396
7397 spin_lock_irqsave(&instance->hba_lock, flags);
7398 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) {
7399 spin_unlock_irqrestore(&instance->hba_lock, flags);
7400
7401 dev_err(&instance->pdev->dev, "timed out while waiting for HBA to recover\n");
7402 error = -ENODEV;
7403 goto out_up;
7404 }
7405 spin_unlock_irqrestore(&instance->hba_lock, flags);
7406
7407 error = megasas_mgmt_fw_ioctl(instance, user_ioc, ioc);
7408 out_up:
7409 up(&instance->ioctl_sem);
7410
7411 out_kfree_ioc:
7412 kfree(ioc);
7413 return error;
7414 }
7415
7416 static int megasas_mgmt_ioctl_aen(struct file *file, unsigned long arg)
7417 {
7418 struct megasas_instance *instance;
7419 struct megasas_aen aen;
7420 int error;
7421 int i;
7422 unsigned long flags;
7423 u32 wait_time = MEGASAS_RESET_WAIT_TIME;
7424
7425 if (file->private_data != file) {
7426 printk(KERN_DEBUG "megasas: fasync_helper was not "
7427 "called first\n");
7428 return -EINVAL;
7429 }
7430
7431 if (copy_from_user(&aen, (void __user *)arg, sizeof(aen)))
7432 return -EFAULT;
7433
7434 instance = megasas_lookup_instance(aen.host_no);
7435
7436 if (!instance)
7437 return -ENODEV;
7438
7439 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
7440 return -ENODEV;
7441 }
7442
7443 if (instance->unload == 1) {
7444 return -ENODEV;
7445 }
7446
7447 for (i = 0; i < wait_time; i++) {
7448
7449 spin_lock_irqsave(&instance->hba_lock, flags);
7450 if (atomic_read(&instance->adprecovery) == MEGASAS_HBA_OPERATIONAL) {
7451 spin_unlock_irqrestore(&instance->hba_lock,
7452 flags);
7453 break;
7454 }
7455
7456 spin_unlock_irqrestore(&instance->hba_lock, flags);
7457
7458 if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) {
7459 dev_notice(&instance->pdev->dev, "waiting for"
7460 "controller reset to finish\n");
7461 }
7462
7463 msleep(1000);
7464 }
7465
7466 spin_lock_irqsave(&instance->hba_lock, flags);
7467 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) {
7468 spin_unlock_irqrestore(&instance->hba_lock, flags);
7469 dev_err(&instance->pdev->dev, "timed out while waiting for HBA to recover\n");
7470 return -ENODEV;
7471 }
7472 spin_unlock_irqrestore(&instance->hba_lock, flags);
7473
7474 mutex_lock(&instance->reset_mutex);
7475 error = megasas_register_aen(instance, aen.seq_num,
7476 aen.class_locale_word);
7477 mutex_unlock(&instance->reset_mutex);
7478 return error;
7479 }
7480
7481 /**
7482 * megasas_mgmt_ioctl - char node ioctl entry point
7483 */
7484 static long
7485 megasas_mgmt_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
7486 {
7487 switch (cmd) {
7488 case MEGASAS_IOC_FIRMWARE:
7489 return megasas_mgmt_ioctl_fw(file, arg);
7490
7491 case MEGASAS_IOC_GET_AEN:
7492 return megasas_mgmt_ioctl_aen(file, arg);
7493 }
7494
7495 return -ENOTTY;
7496 }
7497
7498 #ifdef CONFIG_COMPAT
7499 static int megasas_mgmt_compat_ioctl_fw(struct file *file, unsigned long arg)
7500 {
7501 struct compat_megasas_iocpacket __user *cioc =
7502 (struct compat_megasas_iocpacket __user *)arg;
7503 struct megasas_iocpacket __user *ioc =
7504 compat_alloc_user_space(sizeof(struct megasas_iocpacket));
7505 int i;
7506 int error = 0;
7507 compat_uptr_t ptr;
7508 u32 local_sense_off;
7509 u32 local_sense_len;
7510 u32 user_sense_off;
7511
7512 if (clear_user(ioc, sizeof(*ioc)))
7513 return -EFAULT;
7514
7515 if (copy_in_user(&ioc->host_no, &cioc->host_no, sizeof(u16)) ||
7516 copy_in_user(&ioc->sgl_off, &cioc->sgl_off, sizeof(u32)) ||
7517 copy_in_user(&ioc->sense_off, &cioc->sense_off, sizeof(u32)) ||
7518 copy_in_user(&ioc->sense_len, &cioc->sense_len, sizeof(u32)) ||
7519 copy_in_user(ioc->frame.raw, cioc->frame.raw, 128) ||
7520 copy_in_user(&ioc->sge_count, &cioc->sge_count, sizeof(u32)))
7521 return -EFAULT;
7522
7523 /*
7524 * The sense_ptr is used in megasas_mgmt_fw_ioctl only when
7525 * sense_len is not null, so prepare the 64bit value under
7526 * the same condition.
7527 */
7528 if (get_user(local_sense_off, &ioc->sense_off) ||
7529 get_user(local_sense_len, &ioc->sense_len) ||
7530 get_user(user_sense_off, &cioc->sense_off))
7531 return -EFAULT;
7532
7533 if (local_sense_off != user_sense_off)
7534 return -EINVAL;
7535
7536 if (local_sense_len) {
7537 void __user **sense_ioc_ptr =
7538 (void __user **)((u8 *)((unsigned long)&ioc->frame.raw) + local_sense_off);
7539 compat_uptr_t *sense_cioc_ptr =
7540 (compat_uptr_t *)(((unsigned long)&cioc->frame.raw) + user_sense_off);
7541 if (get_user(ptr, sense_cioc_ptr) ||
7542 put_user(compat_ptr(ptr), sense_ioc_ptr))
7543 return -EFAULT;
7544 }
7545
7546 for (i = 0; i < MAX_IOCTL_SGE; i++) {
7547 if (get_user(ptr, &cioc->sgl[i].iov_base) ||
7548 put_user(compat_ptr(ptr), &ioc->sgl[i].iov_base) ||
7549 copy_in_user(&ioc->sgl[i].iov_len,
7550 &cioc->sgl[i].iov_len, sizeof(compat_size_t)))
7551 return -EFAULT;
7552 }
7553
7554 error = megasas_mgmt_ioctl_fw(file, (unsigned long)ioc);
7555
7556 if (copy_in_user(&cioc->frame.hdr.cmd_status,
7557 &ioc->frame.hdr.cmd_status, sizeof(u8))) {
7558 printk(KERN_DEBUG "megasas: error copy_in_user cmd_status\n");
7559 return -EFAULT;
7560 }
7561 return error;
7562 }
7563
7564 static long
7565 megasas_mgmt_compat_ioctl(struct file *file, unsigned int cmd,
7566 unsigned long arg)
7567 {
7568 switch (cmd) {
7569 case MEGASAS_IOC_FIRMWARE32:
7570 return megasas_mgmt_compat_ioctl_fw(file, arg);
7571 case MEGASAS_IOC_GET_AEN:
7572 return megasas_mgmt_ioctl_aen(file, arg);
7573 }
7574
7575 return -ENOTTY;
7576 }
7577 #endif
7578
7579 /*
7580 * File operations structure for management interface
7581 */
7582 static const struct file_operations megasas_mgmt_fops = {
7583 .owner = THIS_MODULE,
7584 .open = megasas_mgmt_open,
7585 .fasync = megasas_mgmt_fasync,
7586 .unlocked_ioctl = megasas_mgmt_ioctl,
7587 .poll = megasas_mgmt_poll,
7588 #ifdef CONFIG_COMPAT
7589 .compat_ioctl = megasas_mgmt_compat_ioctl,
7590 #endif
7591 .llseek = noop_llseek,
7592 };
7593
7594 /*
7595 * PCI hotplug support registration structure
7596 */
7597 static struct pci_driver megasas_pci_driver = {
7598
7599 .name = "megaraid_sas",
7600 .id_table = megasas_pci_table,
7601 .probe = megasas_probe_one,
7602 .remove = megasas_detach_one,
7603 .suspend = megasas_suspend,
7604 .resume = megasas_resume,
7605 .shutdown = megasas_shutdown,
7606 };
7607
7608 /*
7609 * Sysfs driver attributes
7610 */
7611 static ssize_t version_show(struct device_driver *dd, char *buf)
7612 {
7613 return snprintf(buf, strlen(MEGASAS_VERSION) + 2, "%s\n",
7614 MEGASAS_VERSION);
7615 }
7616 static DRIVER_ATTR_RO(version);
7617
7618 static ssize_t release_date_show(struct device_driver *dd, char *buf)
7619 {
7620 return snprintf(buf, strlen(MEGASAS_RELDATE) + 2, "%s\n",
7621 MEGASAS_RELDATE);
7622 }
7623 static DRIVER_ATTR_RO(release_date);
7624
7625 static ssize_t support_poll_for_event_show(struct device_driver *dd, char *buf)
7626 {
7627 return sprintf(buf, "%u\n", support_poll_for_event);
7628 }
7629 static DRIVER_ATTR_RO(support_poll_for_event);
7630
7631 static ssize_t support_device_change_show(struct device_driver *dd, char *buf)
7632 {
7633 return sprintf(buf, "%u\n", support_device_change);
7634 }
7635 static DRIVER_ATTR_RO(support_device_change);
7636
7637 static ssize_t dbg_lvl_show(struct device_driver *dd, char *buf)
7638 {
7639 return sprintf(buf, "%u\n", megasas_dbg_lvl);
7640 }
7641
7642 static ssize_t dbg_lvl_store(struct device_driver *dd, const char *buf,
7643 size_t count)
7644 {
7645 int retval = count;
7646
7647 if (sscanf(buf, "%u", &megasas_dbg_lvl) < 1) {
7648 printk(KERN_ERR "megasas: could not set dbg_lvl\n");
7649 retval = -EINVAL;
7650 }
7651 return retval;
7652 }
7653 static DRIVER_ATTR_RW(dbg_lvl);
7654
7655 static inline void megasas_remove_scsi_device(struct scsi_device *sdev)
7656 {
7657 sdev_printk(KERN_INFO, sdev, "SCSI device is removed\n");
7658 scsi_remove_device(sdev);
7659 scsi_device_put(sdev);
7660 }
7661
7662 static void
7663 megasas_aen_polling(struct work_struct *work)
7664 {
7665 struct megasas_aen_event *ev =
7666 container_of(work, struct megasas_aen_event, hotplug_work.work);
7667 struct megasas_instance *instance = ev->instance;
7668 union megasas_evt_class_locale class_locale;
7669 struct Scsi_Host *host;
7670 struct scsi_device *sdev1;
7671 u16 pd_index = 0;
7672 u16 ld_index = 0;
7673 int i, j, doscan = 0;
7674 u32 seq_num, wait_time = MEGASAS_RESET_WAIT_TIME;
7675 int error;
7676 u8 dcmd_ret = DCMD_SUCCESS;
7677
7678 if (!instance) {
7679 printk(KERN_ERR "invalid instance!\n");
7680 kfree(ev);
7681 return;
7682 }
7683
7684 /* Adjust event workqueue thread wait time for VF mode */
7685 if (instance->requestorId)
7686 wait_time = MEGASAS_ROUTINE_WAIT_TIME_VF;
7687
7688 /* Don't run the event workqueue thread if OCR is running */
7689 mutex_lock(&instance->reset_mutex);
7690
7691 instance->ev = NULL;
7692 host = instance->host;
7693 if (instance->evt_detail) {
7694 megasas_decode_evt(instance);
7695
7696 switch (le32_to_cpu(instance->evt_detail->code)) {
7697
7698 case MR_EVT_PD_INSERTED:
7699 case MR_EVT_PD_REMOVED:
7700 dcmd_ret = megasas_get_pd_list(instance);
7701 if (dcmd_ret == DCMD_SUCCESS)
7702 doscan = SCAN_PD_CHANNEL;
7703 break;
7704
7705 case MR_EVT_LD_OFFLINE:
7706 case MR_EVT_CFG_CLEARED:
7707 case MR_EVT_LD_DELETED:
7708 case MR_EVT_LD_CREATED:
7709 if (!instance->requestorId ||
7710 (instance->requestorId && megasas_get_ld_vf_affiliation(instance, 0)))
7711 dcmd_ret = megasas_ld_list_query(instance, MR_LD_QUERY_TYPE_EXPOSED_TO_HOST);
7712
7713 if (dcmd_ret == DCMD_SUCCESS)
7714 doscan = SCAN_VD_CHANNEL;
7715
7716 break;
7717
7718 case MR_EVT_CTRL_HOST_BUS_SCAN_REQUESTED:
7719 case MR_EVT_FOREIGN_CFG_IMPORTED:
7720 case MR_EVT_LD_STATE_CHANGE:
7721 dcmd_ret = megasas_get_pd_list(instance);
7722
7723 if (dcmd_ret != DCMD_SUCCESS)
7724 break;
7725
7726 if (!instance->requestorId ||
7727 (instance->requestorId && megasas_get_ld_vf_affiliation(instance, 0)))
7728 dcmd_ret = megasas_ld_list_query(instance, MR_LD_QUERY_TYPE_EXPOSED_TO_HOST);
7729
7730 if (dcmd_ret != DCMD_SUCCESS)
7731 break;
7732
7733 doscan = SCAN_VD_CHANNEL | SCAN_PD_CHANNEL;
7734 dev_info(&instance->pdev->dev, "scanning for scsi%d...\n",
7735 instance->host->host_no);
7736 break;
7737
7738 case MR_EVT_CTRL_PROP_CHANGED:
7739 dcmd_ret = megasas_get_ctrl_info(instance);
7740 break;
7741 default:
7742 doscan = 0;
7743 break;
7744 }
7745 } else {
7746 dev_err(&instance->pdev->dev, "invalid evt_detail!\n");
7747 mutex_unlock(&instance->reset_mutex);
7748 kfree(ev);
7749 return;
7750 }
7751
7752 mutex_unlock(&instance->reset_mutex);
7753
7754 if (doscan & SCAN_PD_CHANNEL) {
7755 for (i = 0; i < MEGASAS_MAX_PD_CHANNELS; i++) {
7756 for (j = 0; j < MEGASAS_MAX_DEV_PER_CHANNEL; j++) {
7757 pd_index = i*MEGASAS_MAX_DEV_PER_CHANNEL + j;
7758 sdev1 = scsi_device_lookup(host, i, j, 0);
7759 if (instance->pd_list[pd_index].driveState ==
7760 MR_PD_STATE_SYSTEM) {
7761 if (!sdev1)
7762 scsi_add_device(host, i, j, 0);
7763 else
7764 scsi_device_put(sdev1);
7765 } else {
7766 if (sdev1)
7767 megasas_remove_scsi_device(sdev1);
7768 }
7769 }
7770 }
7771 }
7772
7773 if (doscan & SCAN_VD_CHANNEL) {
7774 for (i = 0; i < MEGASAS_MAX_LD_CHANNELS; i++) {
7775 for (j = 0; j < MEGASAS_MAX_DEV_PER_CHANNEL; j++) {
7776 ld_index = (i * MEGASAS_MAX_DEV_PER_CHANNEL) + j;
7777 sdev1 = scsi_device_lookup(host, MEGASAS_MAX_PD_CHANNELS + i, j, 0);
7778 if (instance->ld_ids[ld_index] != 0xff) {
7779 if (!sdev1)
7780 scsi_add_device(host, MEGASAS_MAX_PD_CHANNELS + i, j, 0);
7781 else
7782 scsi_device_put(sdev1);
7783 } else {
7784 if (sdev1)
7785 megasas_remove_scsi_device(sdev1);
7786 }
7787 }
7788 }
7789 }
7790
7791 if (dcmd_ret == DCMD_SUCCESS)
7792 seq_num = le32_to_cpu(instance->evt_detail->seq_num) + 1;
7793 else
7794 seq_num = instance->last_seq_num;
7795
7796 /* Register AEN with FW for latest sequence number plus 1 */
7797 class_locale.members.reserved = 0;
7798 class_locale.members.locale = MR_EVT_LOCALE_ALL;
7799 class_locale.members.class = MR_EVT_CLASS_DEBUG;
7800
7801 if (instance->aen_cmd != NULL) {
7802 kfree(ev);
7803 return;
7804 }
7805
7806 mutex_lock(&instance->reset_mutex);
7807 error = megasas_register_aen(instance, seq_num,
7808 class_locale.word);
7809 if (error)
7810 dev_err(&instance->pdev->dev,
7811 "register aen failed error %x\n", error);
7812
7813 mutex_unlock(&instance->reset_mutex);
7814 kfree(ev);
7815 }
7816
7817 /**
7818 * megasas_init - Driver load entry point
7819 */
7820 static int __init megasas_init(void)
7821 {
7822 int rval;
7823
7824 /*
7825 * Booted in kdump kernel, minimize memory footprints by
7826 * disabling few features
7827 */
7828 if (reset_devices) {
7829 msix_vectors = 1;
7830 rdpq_enable = 0;
7831 dual_qdepth_disable = 1;
7832 }
7833
7834 /*
7835 * Announce driver version and other information
7836 */
7837 pr_info("megasas: %s\n", MEGASAS_VERSION);
7838
7839 spin_lock_init(&poll_aen_lock);
7840
7841 support_poll_for_event = 2;
7842 support_device_change = 1;
7843
7844 memset(&megasas_mgmt_info, 0, sizeof(megasas_mgmt_info));
7845
7846 /*
7847 * Register character device node
7848 */
7849 rval = register_chrdev(0, "megaraid_sas_ioctl", &megasas_mgmt_fops);
7850
7851 if (rval < 0) {
7852 printk(KERN_DEBUG "megasas: failed to open device node\n");
7853 return rval;
7854 }
7855
7856 megasas_mgmt_majorno = rval;
7857
7858 /*
7859 * Register ourselves as PCI hotplug module
7860 */
7861 rval = pci_register_driver(&megasas_pci_driver);
7862
7863 if (rval) {
7864 printk(KERN_DEBUG "megasas: PCI hotplug registration failed \n");
7865 goto err_pcidrv;
7866 }
7867
7868 rval = driver_create_file(&megasas_pci_driver.driver,
7869 &driver_attr_version);
7870 if (rval)
7871 goto err_dcf_attr_ver;
7872
7873 rval = driver_create_file(&megasas_pci_driver.driver,
7874 &driver_attr_release_date);
7875 if (rval)
7876 goto err_dcf_rel_date;
7877
7878 rval = driver_create_file(&megasas_pci_driver.driver,
7879 &driver_attr_support_poll_for_event);
7880 if (rval)
7881 goto err_dcf_support_poll_for_event;
7882
7883 rval = driver_create_file(&megasas_pci_driver.driver,
7884 &driver_attr_dbg_lvl);
7885 if (rval)
7886 goto err_dcf_dbg_lvl;
7887 rval = driver_create_file(&megasas_pci_driver.driver,
7888 &driver_attr_support_device_change);
7889 if (rval)
7890 goto err_dcf_support_device_change;
7891
7892 return rval;
7893
7894 err_dcf_support_device_change:
7895 driver_remove_file(&megasas_pci_driver.driver,
7896 &driver_attr_dbg_lvl);
7897 err_dcf_dbg_lvl:
7898 driver_remove_file(&megasas_pci_driver.driver,
7899 &driver_attr_support_poll_for_event);
7900 err_dcf_support_poll_for_event:
7901 driver_remove_file(&megasas_pci_driver.driver,
7902 &driver_attr_release_date);
7903 err_dcf_rel_date:
7904 driver_remove_file(&megasas_pci_driver.driver, &driver_attr_version);
7905 err_dcf_attr_ver:
7906 pci_unregister_driver(&megasas_pci_driver);
7907 err_pcidrv:
7908 unregister_chrdev(megasas_mgmt_majorno, "megaraid_sas_ioctl");
7909 return rval;
7910 }
7911
7912 /**
7913 * megasas_exit - Driver unload entry point
7914 */
7915 static void __exit megasas_exit(void)
7916 {
7917 driver_remove_file(&megasas_pci_driver.driver,
7918 &driver_attr_dbg_lvl);
7919 driver_remove_file(&megasas_pci_driver.driver,
7920 &driver_attr_support_poll_for_event);
7921 driver_remove_file(&megasas_pci_driver.driver,
7922 &driver_attr_support_device_change);
7923 driver_remove_file(&megasas_pci_driver.driver,
7924 &driver_attr_release_date);
7925 driver_remove_file(&megasas_pci_driver.driver, &driver_attr_version);
7926
7927 pci_unregister_driver(&megasas_pci_driver);
7928 unregister_chrdev(megasas_mgmt_majorno, "megaraid_sas_ioctl");
7929 }
7930
7931 module_init(megasas_init);
7932 module_exit(megasas_exit);
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