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Linux 4.18.10
[linux/fpc-iii.git] / drivers / scsi / megaraid / megaraid_sas_base.c
blob71d97573a667fe1f2870df134f186d9f2ffb9839
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/disable 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 static bool support_nvme_encapsulation;
185
186 /* define lock for aen poll */
187 spinlock_t poll_aen_lock;
188
189 void
190 megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd,
191 u8 alt_status);
192 static u32
193 megasas_read_fw_status_reg_gen2(struct megasas_register_set __iomem *regs);
194 static int
195 megasas_adp_reset_gen2(struct megasas_instance *instance,
196 struct megasas_register_set __iomem *reg_set);
197 static irqreturn_t megasas_isr(int irq, void *devp);
198 static u32
199 megasas_init_adapter_mfi(struct megasas_instance *instance);
200 u32
201 megasas_build_and_issue_cmd(struct megasas_instance *instance,
202 struct scsi_cmnd *scmd);
203 static void megasas_complete_cmd_dpc(unsigned long instance_addr);
204 int
205 wait_and_poll(struct megasas_instance *instance, struct megasas_cmd *cmd,
206 int seconds);
207 void megasas_fusion_ocr_wq(struct work_struct *work);
208 static int megasas_get_ld_vf_affiliation(struct megasas_instance *instance,
209 int initial);
210 static int
211 megasas_set_dma_mask(struct megasas_instance *instance);
212 static int
213 megasas_alloc_ctrl_mem(struct megasas_instance *instance);
214 static inline void
215 megasas_free_ctrl_mem(struct megasas_instance *instance);
216 static inline int
217 megasas_alloc_ctrl_dma_buffers(struct megasas_instance *instance);
218 static inline void
219 megasas_free_ctrl_dma_buffers(struct megasas_instance *instance);
220 static inline void
221 megasas_init_ctrl_params(struct megasas_instance *instance);
222
223 /**
224 * megasas_set_dma_settings - Populate DMA address, length and flags for DCMDs
225 * @instance: Adapter soft state
226 * @dcmd: DCMD frame inside MFI command
227 * @dma_addr: DMA address of buffer to be passed to FW
228 * @dma_len: Length of DMA buffer to be passed to FW
229 * @return: void
230 */
231 void megasas_set_dma_settings(struct megasas_instance *instance,
232 struct megasas_dcmd_frame *dcmd,
233 dma_addr_t dma_addr, u32 dma_len)
234 {
235 if (instance->consistent_mask_64bit) {
236 dcmd->sgl.sge64[0].phys_addr = cpu_to_le64(dma_addr);
237 dcmd->sgl.sge64[0].length = cpu_to_le32(dma_len);
238 dcmd->flags = cpu_to_le16(dcmd->flags | MFI_FRAME_SGL64);
239
240 } else {
241 dcmd->sgl.sge32[0].phys_addr =
242 cpu_to_le32(lower_32_bits(dma_addr));
243 dcmd->sgl.sge32[0].length = cpu_to_le32(dma_len);
244 dcmd->flags = cpu_to_le16(dcmd->flags);
245 }
246 }
247
248 void
249 megasas_issue_dcmd(struct megasas_instance *instance, struct megasas_cmd *cmd)
250 {
251 instance->instancet->fire_cmd(instance,
252 cmd->frame_phys_addr, 0, instance->reg_set);
253 return;
254 }
255
256 /**
257 * megasas_get_cmd - Get a command from the free pool
258 * @instance: Adapter soft state
259 *
260 * Returns a free command from the pool
261 */
262 struct megasas_cmd *megasas_get_cmd(struct megasas_instance
263 *instance)
264 {
265 unsigned long flags;
266 struct megasas_cmd *cmd = NULL;
267
268 spin_lock_irqsave(&instance->mfi_pool_lock, flags);
269
270 if (!list_empty(&instance->cmd_pool)) {
271 cmd = list_entry((&instance->cmd_pool)->next,
272 struct megasas_cmd, list);
273 list_del_init(&cmd->list);
274 } else {
275 dev_err(&instance->pdev->dev, "Command pool empty!\n");
276 }
277
278 spin_unlock_irqrestore(&instance->mfi_pool_lock, flags);
279 return cmd;
280 }
281
282 /**
283 * megasas_return_cmd - Return a cmd to free command pool
284 * @instance: Adapter soft state
285 * @cmd: Command packet to be returned to free command pool
286 */
287 void
288 megasas_return_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd)
289 {
290 unsigned long flags;
291 u32 blk_tags;
292 struct megasas_cmd_fusion *cmd_fusion;
293 struct fusion_context *fusion = instance->ctrl_context;
294
295 /* This flag is used only for fusion adapter.
296 * Wait for Interrupt for Polled mode DCMD
297 */
298 if (cmd->flags & DRV_DCMD_POLLED_MODE)
299 return;
300
301 spin_lock_irqsave(&instance->mfi_pool_lock, flags);
302
303 if (fusion) {
304 blk_tags = instance->max_scsi_cmds + cmd->index;
305 cmd_fusion = fusion->cmd_list[blk_tags];
306 megasas_return_cmd_fusion(instance, cmd_fusion);
307 }
308 cmd->scmd = NULL;
309 cmd->frame_count = 0;
310 cmd->flags = 0;
311 memset(cmd->frame, 0, instance->mfi_frame_size);
312 cmd->frame->io.context = cpu_to_le32(cmd->index);
313 if (!fusion && reset_devices)
314 cmd->frame->hdr.cmd = MFI_CMD_INVALID;
315 list_add(&cmd->list, (&instance->cmd_pool)->next);
316
317 spin_unlock_irqrestore(&instance->mfi_pool_lock, flags);
318
319 }
320
321 static const char *
322 format_timestamp(uint32_t timestamp)
323 {
324 static char buffer[32];
325
326 if ((timestamp & 0xff000000) == 0xff000000)
327 snprintf(buffer, sizeof(buffer), "boot + %us", timestamp &
328 0x00ffffff);
329 else
330 snprintf(buffer, sizeof(buffer), "%us", timestamp);
331 return buffer;
332 }
333
334 static const char *
335 format_class(int8_t class)
336 {
337 static char buffer[6];
338
339 switch (class) {
340 case MFI_EVT_CLASS_DEBUG:
341 return "debug";
342 case MFI_EVT_CLASS_PROGRESS:
343 return "progress";
344 case MFI_EVT_CLASS_INFO:
345 return "info";
346 case MFI_EVT_CLASS_WARNING:
347 return "WARN";
348 case MFI_EVT_CLASS_CRITICAL:
349 return "CRIT";
350 case MFI_EVT_CLASS_FATAL:
351 return "FATAL";
352 case MFI_EVT_CLASS_DEAD:
353 return "DEAD";
354 default:
355 snprintf(buffer, sizeof(buffer), "%d", class);
356 return buffer;
357 }
358 }
359
360 /**
361 * megasas_decode_evt: Decode FW AEN event and print critical event
362 * for information.
363 * @instance: Adapter soft state
364 */
365 static void
366 megasas_decode_evt(struct megasas_instance *instance)
367 {
368 struct megasas_evt_detail *evt_detail = instance->evt_detail;
369 union megasas_evt_class_locale class_locale;
370 class_locale.word = le32_to_cpu(evt_detail->cl.word);
371
372 if (class_locale.members.class >= MFI_EVT_CLASS_CRITICAL)
373 dev_info(&instance->pdev->dev, "%d (%s/0x%04x/%s) - %s\n",
374 le32_to_cpu(evt_detail->seq_num),
375 format_timestamp(le32_to_cpu(evt_detail->time_stamp)),
376 (class_locale.members.locale),
377 format_class(class_locale.members.class),
378 evt_detail->description);
379 }
380
381 /**
382 * The following functions are defined for xscale
383 * (deviceid : 1064R, PERC5) controllers
384 */
385
386 /**
387 * megasas_enable_intr_xscale - Enables interrupts
388 * @regs: MFI register set
389 */
390 static inline void
391 megasas_enable_intr_xscale(struct megasas_instance *instance)
392 {
393 struct megasas_register_set __iomem *regs;
394
395 regs = instance->reg_set;
396 writel(0, &(regs)->outbound_intr_mask);
397
398 /* Dummy readl to force pci flush */
399 readl(&regs->outbound_intr_mask);
400 }
401
402 /**
403 * megasas_disable_intr_xscale -Disables interrupt
404 * @regs: MFI register set
405 */
406 static inline void
407 megasas_disable_intr_xscale(struct megasas_instance *instance)
408 {
409 struct megasas_register_set __iomem *regs;
410 u32 mask = 0x1f;
411
412 regs = instance->reg_set;
413 writel(mask, &regs->outbound_intr_mask);
414 /* Dummy readl to force pci flush */
415 readl(&regs->outbound_intr_mask);
416 }
417
418 /**
419 * megasas_read_fw_status_reg_xscale - returns the current FW status value
420 * @regs: MFI register set
421 */
422 static u32
423 megasas_read_fw_status_reg_xscale(struct megasas_register_set __iomem * regs)
424 {
425 return readl(&(regs)->outbound_msg_0);
426 }
427 /**
428 * megasas_clear_interrupt_xscale - Check & clear interrupt
429 * @regs: MFI register set
430 */
431 static int
432 megasas_clear_intr_xscale(struct megasas_register_set __iomem * regs)
433 {
434 u32 status;
435 u32 mfiStatus = 0;
436
437 /*
438 * Check if it is our interrupt
439 */
440 status = readl(&regs->outbound_intr_status);
441
442 if (status & MFI_OB_INTR_STATUS_MASK)
443 mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE;
444 if (status & MFI_XSCALE_OMR0_CHANGE_INTERRUPT)
445 mfiStatus |= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE;
446
447 /*
448 * Clear the interrupt by writing back the same value
449 */
450 if (mfiStatus)
451 writel(status, &regs->outbound_intr_status);
452
453 /* Dummy readl to force pci flush */
454 readl(&regs->outbound_intr_status);
455
456 return mfiStatus;
457 }
458
459 /**
460 * megasas_fire_cmd_xscale - Sends command to the FW
461 * @frame_phys_addr : Physical address of cmd
462 * @frame_count : Number of frames for the command
463 * @regs : MFI register set
464 */
465 static inline void
466 megasas_fire_cmd_xscale(struct megasas_instance *instance,
467 dma_addr_t frame_phys_addr,
468 u32 frame_count,
469 struct megasas_register_set __iomem *regs)
470 {
471 unsigned long flags;
472
473 spin_lock_irqsave(&instance->hba_lock, flags);
474 writel((frame_phys_addr >> 3)|(frame_count),
475 &(regs)->inbound_queue_port);
476 spin_unlock_irqrestore(&instance->hba_lock, flags);
477 }
478
479 /**
480 * megasas_adp_reset_xscale - For controller reset
481 * @regs: MFI register set
482 */
483 static int
484 megasas_adp_reset_xscale(struct megasas_instance *instance,
485 struct megasas_register_set __iomem *regs)
486 {
487 u32 i;
488 u32 pcidata;
489
490 writel(MFI_ADP_RESET, &regs->inbound_doorbell);
491
492 for (i = 0; i < 3; i++)
493 msleep(1000); /* sleep for 3 secs */
494 pcidata = 0;
495 pci_read_config_dword(instance->pdev, MFI_1068_PCSR_OFFSET, &pcidata);
496 dev_notice(&instance->pdev->dev, "pcidata = %x\n", pcidata);
497 if (pcidata & 0x2) {
498 dev_notice(&instance->pdev->dev, "mfi 1068 offset read=%x\n", pcidata);
499 pcidata &= ~0x2;
500 pci_write_config_dword(instance->pdev,
501 MFI_1068_PCSR_OFFSET, pcidata);
502
503 for (i = 0; i < 2; i++)
504 msleep(1000); /* need to wait 2 secs again */
505
506 pcidata = 0;
507 pci_read_config_dword(instance->pdev,
508 MFI_1068_FW_HANDSHAKE_OFFSET, &pcidata);
509 dev_notice(&instance->pdev->dev, "1068 offset handshake read=%x\n", pcidata);
510 if ((pcidata & 0xffff0000) == MFI_1068_FW_READY) {
511 dev_notice(&instance->pdev->dev, "1068 offset pcidt=%x\n", pcidata);
512 pcidata = 0;
513 pci_write_config_dword(instance->pdev,
514 MFI_1068_FW_HANDSHAKE_OFFSET, pcidata);
515 }
516 }
517 return 0;
518 }
519
520 /**
521 * megasas_check_reset_xscale - For controller reset check
522 * @regs: MFI register set
523 */
524 static int
525 megasas_check_reset_xscale(struct megasas_instance *instance,
526 struct megasas_register_set __iomem *regs)
527 {
528 if ((atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) &&
529 (le32_to_cpu(*instance->consumer) ==
530 MEGASAS_ADPRESET_INPROG_SIGN))
531 return 1;
532 return 0;
533 }
534
535 static struct megasas_instance_template megasas_instance_template_xscale = {
536
537 .fire_cmd = megasas_fire_cmd_xscale,
538 .enable_intr = megasas_enable_intr_xscale,
539 .disable_intr = megasas_disable_intr_xscale,
540 .clear_intr = megasas_clear_intr_xscale,
541 .read_fw_status_reg = megasas_read_fw_status_reg_xscale,
542 .adp_reset = megasas_adp_reset_xscale,
543 .check_reset = megasas_check_reset_xscale,
544 .service_isr = megasas_isr,
545 .tasklet = megasas_complete_cmd_dpc,
546 .init_adapter = megasas_init_adapter_mfi,
547 .build_and_issue_cmd = megasas_build_and_issue_cmd,
548 .issue_dcmd = megasas_issue_dcmd,
549 };
550
551 /**
552 * This is the end of set of functions & definitions specific
553 * to xscale (deviceid : 1064R, PERC5) controllers
554 */
555
556 /**
557 * The following functions are defined for ppc (deviceid : 0x60)
558 * controllers
559 */
560
561 /**
562 * megasas_enable_intr_ppc - Enables interrupts
563 * @regs: MFI register set
564 */
565 static inline void
566 megasas_enable_intr_ppc(struct megasas_instance *instance)
567 {
568 struct megasas_register_set __iomem *regs;
569
570 regs = instance->reg_set;
571 writel(0xFFFFFFFF, &(regs)->outbound_doorbell_clear);
572
573 writel(~0x80000000, &(regs)->outbound_intr_mask);
574
575 /* Dummy readl to force pci flush */
576 readl(&regs->outbound_intr_mask);
577 }
578
579 /**
580 * megasas_disable_intr_ppc - Disable interrupt
581 * @regs: MFI register set
582 */
583 static inline void
584 megasas_disable_intr_ppc(struct megasas_instance *instance)
585 {
586 struct megasas_register_set __iomem *regs;
587 u32 mask = 0xFFFFFFFF;
588
589 regs = instance->reg_set;
590 writel(mask, &regs->outbound_intr_mask);
591 /* Dummy readl to force pci flush */
592 readl(&regs->outbound_intr_mask);
593 }
594
595 /**
596 * megasas_read_fw_status_reg_ppc - returns the current FW status value
597 * @regs: MFI register set
598 */
599 static u32
600 megasas_read_fw_status_reg_ppc(struct megasas_register_set __iomem * regs)
601 {
602 return readl(&(regs)->outbound_scratch_pad);
603 }
604
605 /**
606 * megasas_clear_interrupt_ppc - Check & clear interrupt
607 * @regs: MFI register set
608 */
609 static int
610 megasas_clear_intr_ppc(struct megasas_register_set __iomem * regs)
611 {
612 u32 status, mfiStatus = 0;
613
614 /*
615 * Check if it is our interrupt
616 */
617 status = readl(&regs->outbound_intr_status);
618
619 if (status & MFI_REPLY_1078_MESSAGE_INTERRUPT)
620 mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE;
621
622 if (status & MFI_G2_OUTBOUND_DOORBELL_CHANGE_INTERRUPT)
623 mfiStatus |= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE;
624
625 /*
626 * Clear the interrupt by writing back the same value
627 */
628 writel(status, &regs->outbound_doorbell_clear);
629
630 /* Dummy readl to force pci flush */
631 readl(&regs->outbound_doorbell_clear);
632
633 return mfiStatus;
634 }
635
636 /**
637 * megasas_fire_cmd_ppc - Sends command to the FW
638 * @frame_phys_addr : Physical address of cmd
639 * @frame_count : Number of frames for the command
640 * @regs : MFI register set
641 */
642 static inline void
643 megasas_fire_cmd_ppc(struct megasas_instance *instance,
644 dma_addr_t frame_phys_addr,
645 u32 frame_count,
646 struct megasas_register_set __iomem *regs)
647 {
648 unsigned long flags;
649
650 spin_lock_irqsave(&instance->hba_lock, flags);
651 writel((frame_phys_addr | (frame_count<<1))|1,
652 &(regs)->inbound_queue_port);
653 spin_unlock_irqrestore(&instance->hba_lock, flags);
654 }
655
656 /**
657 * megasas_check_reset_ppc - For controller reset check
658 * @regs: MFI register set
659 */
660 static int
661 megasas_check_reset_ppc(struct megasas_instance *instance,
662 struct megasas_register_set __iomem *regs)
663 {
664 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL)
665 return 1;
666
667 return 0;
668 }
669
670 static struct megasas_instance_template megasas_instance_template_ppc = {
671
672 .fire_cmd = megasas_fire_cmd_ppc,
673 .enable_intr = megasas_enable_intr_ppc,
674 .disable_intr = megasas_disable_intr_ppc,
675 .clear_intr = megasas_clear_intr_ppc,
676 .read_fw_status_reg = megasas_read_fw_status_reg_ppc,
677 .adp_reset = megasas_adp_reset_xscale,
678 .check_reset = megasas_check_reset_ppc,
679 .service_isr = megasas_isr,
680 .tasklet = megasas_complete_cmd_dpc,
681 .init_adapter = megasas_init_adapter_mfi,
682 .build_and_issue_cmd = megasas_build_and_issue_cmd,
683 .issue_dcmd = megasas_issue_dcmd,
684 };
685
686 /**
687 * megasas_enable_intr_skinny - Enables interrupts
688 * @regs: MFI register set
689 */
690 static inline void
691 megasas_enable_intr_skinny(struct megasas_instance *instance)
692 {
693 struct megasas_register_set __iomem *regs;
694
695 regs = instance->reg_set;
696 writel(0xFFFFFFFF, &(regs)->outbound_intr_mask);
697
698 writel(~MFI_SKINNY_ENABLE_INTERRUPT_MASK, &(regs)->outbound_intr_mask);
699
700 /* Dummy readl to force pci flush */
701 readl(&regs->outbound_intr_mask);
702 }
703
704 /**
705 * megasas_disable_intr_skinny - Disables interrupt
706 * @regs: MFI register set
707 */
708 static inline void
709 megasas_disable_intr_skinny(struct megasas_instance *instance)
710 {
711 struct megasas_register_set __iomem *regs;
712 u32 mask = 0xFFFFFFFF;
713
714 regs = instance->reg_set;
715 writel(mask, &regs->outbound_intr_mask);
716 /* Dummy readl to force pci flush */
717 readl(&regs->outbound_intr_mask);
718 }
719
720 /**
721 * megasas_read_fw_status_reg_skinny - returns the current FW status value
722 * @regs: MFI register set
723 */
724 static u32
725 megasas_read_fw_status_reg_skinny(struct megasas_register_set __iomem *regs)
726 {
727 return readl(&(regs)->outbound_scratch_pad);
728 }
729
730 /**
731 * megasas_clear_interrupt_skinny - Check & clear interrupt
732 * @regs: MFI register set
733 */
734 static int
735 megasas_clear_intr_skinny(struct megasas_register_set __iomem *regs)
736 {
737 u32 status;
738 u32 mfiStatus = 0;
739
740 /*
741 * Check if it is our interrupt
742 */
743 status = readl(&regs->outbound_intr_status);
744
745 if (!(status & MFI_SKINNY_ENABLE_INTERRUPT_MASK)) {
746 return 0;
747 }
748
749 /*
750 * Check if it is our interrupt
751 */
752 if ((megasas_read_fw_status_reg_skinny(regs) & MFI_STATE_MASK) ==
753 MFI_STATE_FAULT) {
754 mfiStatus = MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE;
755 } else
756 mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE;
757
758 /*
759 * Clear the interrupt by writing back the same value
760 */
761 writel(status, &regs->outbound_intr_status);
762
763 /*
764 * dummy read to flush PCI
765 */
766 readl(&regs->outbound_intr_status);
767
768 return mfiStatus;
769 }
770
771 /**
772 * megasas_fire_cmd_skinny - Sends command to the FW
773 * @frame_phys_addr : Physical address of cmd
774 * @frame_count : Number of frames for the command
775 * @regs : MFI register set
776 */
777 static inline void
778 megasas_fire_cmd_skinny(struct megasas_instance *instance,
779 dma_addr_t frame_phys_addr,
780 u32 frame_count,
781 struct megasas_register_set __iomem *regs)
782 {
783 unsigned long flags;
784
785 spin_lock_irqsave(&instance->hba_lock, flags);
786 writel(upper_32_bits(frame_phys_addr),
787 &(regs)->inbound_high_queue_port);
788 writel((lower_32_bits(frame_phys_addr) | (frame_count<<1))|1,
789 &(regs)->inbound_low_queue_port);
790 mmiowb();
791 spin_unlock_irqrestore(&instance->hba_lock, flags);
792 }
793
794 /**
795 * megasas_check_reset_skinny - For controller reset check
796 * @regs: MFI register set
797 */
798 static int
799 megasas_check_reset_skinny(struct megasas_instance *instance,
800 struct megasas_register_set __iomem *regs)
801 {
802 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL)
803 return 1;
804
805 return 0;
806 }
807
808 static struct megasas_instance_template megasas_instance_template_skinny = {
809
810 .fire_cmd = megasas_fire_cmd_skinny,
811 .enable_intr = megasas_enable_intr_skinny,
812 .disable_intr = megasas_disable_intr_skinny,
813 .clear_intr = megasas_clear_intr_skinny,
814 .read_fw_status_reg = megasas_read_fw_status_reg_skinny,
815 .adp_reset = megasas_adp_reset_gen2,
816 .check_reset = megasas_check_reset_skinny,
817 .service_isr = megasas_isr,
818 .tasklet = megasas_complete_cmd_dpc,
819 .init_adapter = megasas_init_adapter_mfi,
820 .build_and_issue_cmd = megasas_build_and_issue_cmd,
821 .issue_dcmd = megasas_issue_dcmd,
822 };
823
824
825 /**
826 * The following functions are defined for gen2 (deviceid : 0x78 0x79)
827 * controllers
828 */
829
830 /**
831 * megasas_enable_intr_gen2 - Enables interrupts
832 * @regs: MFI register set
833 */
834 static inline void
835 megasas_enable_intr_gen2(struct megasas_instance *instance)
836 {
837 struct megasas_register_set __iomem *regs;
838
839 regs = instance->reg_set;
840 writel(0xFFFFFFFF, &(regs)->outbound_doorbell_clear);
841
842 /* write ~0x00000005 (4 & 1) to the intr mask*/
843 writel(~MFI_GEN2_ENABLE_INTERRUPT_MASK, &(regs)->outbound_intr_mask);
844
845 /* Dummy readl to force pci flush */
846 readl(&regs->outbound_intr_mask);
847 }
848
849 /**
850 * megasas_disable_intr_gen2 - Disables interrupt
851 * @regs: MFI register set
852 */
853 static inline void
854 megasas_disable_intr_gen2(struct megasas_instance *instance)
855 {
856 struct megasas_register_set __iomem *regs;
857 u32 mask = 0xFFFFFFFF;
858
859 regs = instance->reg_set;
860 writel(mask, &regs->outbound_intr_mask);
861 /* Dummy readl to force pci flush */
862 readl(&regs->outbound_intr_mask);
863 }
864
865 /**
866 * megasas_read_fw_status_reg_gen2 - returns the current FW status value
867 * @regs: MFI register set
868 */
869 static u32
870 megasas_read_fw_status_reg_gen2(struct megasas_register_set __iomem *regs)
871 {
872 return readl(&(regs)->outbound_scratch_pad);
873 }
874
875 /**
876 * megasas_clear_interrupt_gen2 - Check & clear interrupt
877 * @regs: MFI register set
878 */
879 static int
880 megasas_clear_intr_gen2(struct megasas_register_set __iomem *regs)
881 {
882 u32 status;
883 u32 mfiStatus = 0;
884
885 /*
886 * Check if it is our interrupt
887 */
888 status = readl(&regs->outbound_intr_status);
889
890 if (status & MFI_INTR_FLAG_REPLY_MESSAGE) {
891 mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE;
892 }
893 if (status & MFI_G2_OUTBOUND_DOORBELL_CHANGE_INTERRUPT) {
894 mfiStatus |= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE;
895 }
896
897 /*
898 * Clear the interrupt by writing back the same value
899 */
900 if (mfiStatus)
901 writel(status, &regs->outbound_doorbell_clear);
902
903 /* Dummy readl to force pci flush */
904 readl(&regs->outbound_intr_status);
905
906 return mfiStatus;
907 }
908 /**
909 * megasas_fire_cmd_gen2 - Sends command to the FW
910 * @frame_phys_addr : Physical address of cmd
911 * @frame_count : Number of frames for the command
912 * @regs : MFI register set
913 */
914 static inline void
915 megasas_fire_cmd_gen2(struct megasas_instance *instance,
916 dma_addr_t frame_phys_addr,
917 u32 frame_count,
918 struct megasas_register_set __iomem *regs)
919 {
920 unsigned long flags;
921
922 spin_lock_irqsave(&instance->hba_lock, flags);
923 writel((frame_phys_addr | (frame_count<<1))|1,
924 &(regs)->inbound_queue_port);
925 spin_unlock_irqrestore(&instance->hba_lock, flags);
926 }
927
928 /**
929 * megasas_adp_reset_gen2 - For controller reset
930 * @regs: MFI register set
931 */
932 static int
933 megasas_adp_reset_gen2(struct megasas_instance *instance,
934 struct megasas_register_set __iomem *reg_set)
935 {
936 u32 retry = 0 ;
937 u32 HostDiag;
938 u32 __iomem *seq_offset = &reg_set->seq_offset;
939 u32 __iomem *hostdiag_offset = &reg_set->host_diag;
940
941 if (instance->instancet == &megasas_instance_template_skinny) {
942 seq_offset = &reg_set->fusion_seq_offset;
943 hostdiag_offset = &reg_set->fusion_host_diag;
944 }
945
946 writel(0, seq_offset);
947 writel(4, seq_offset);
948 writel(0xb, seq_offset);
949 writel(2, seq_offset);
950 writel(7, seq_offset);
951 writel(0xd, seq_offset);
952
953 msleep(1000);
954
955 HostDiag = (u32)readl(hostdiag_offset);
956
957 while (!(HostDiag & DIAG_WRITE_ENABLE)) {
958 msleep(100);
959 HostDiag = (u32)readl(hostdiag_offset);
960 dev_notice(&instance->pdev->dev, "RESETGEN2: retry=%x, hostdiag=%x\n",
961 retry, HostDiag);
962
963 if (retry++ >= 100)
964 return 1;
965
966 }
967
968 dev_notice(&instance->pdev->dev, "ADP_RESET_GEN2: HostDiag=%x\n", HostDiag);
969
970 writel((HostDiag | DIAG_RESET_ADAPTER), hostdiag_offset);
971
972 ssleep(10);
973
974 HostDiag = (u32)readl(hostdiag_offset);
975 while (HostDiag & DIAG_RESET_ADAPTER) {
976 msleep(100);
977 HostDiag = (u32)readl(hostdiag_offset);
978 dev_notice(&instance->pdev->dev, "RESET_GEN2: retry=%x, hostdiag=%x\n",
979 retry, HostDiag);
980
981 if (retry++ >= 1000)
982 return 1;
983
984 }
985 return 0;
986 }
987
988 /**
989 * megasas_check_reset_gen2 - For controller reset check
990 * @regs: MFI register set
991 */
992 static int
993 megasas_check_reset_gen2(struct megasas_instance *instance,
994 struct megasas_register_set __iomem *regs)
995 {
996 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL)
997 return 1;
998
999 return 0;
1000 }
1001
1002 static struct megasas_instance_template megasas_instance_template_gen2 = {
1003
1004 .fire_cmd = megasas_fire_cmd_gen2,
1005 .enable_intr = megasas_enable_intr_gen2,
1006 .disable_intr = megasas_disable_intr_gen2,
1007 .clear_intr = megasas_clear_intr_gen2,
1008 .read_fw_status_reg = megasas_read_fw_status_reg_gen2,
1009 .adp_reset = megasas_adp_reset_gen2,
1010 .check_reset = megasas_check_reset_gen2,
1011 .service_isr = megasas_isr,
1012 .tasklet = megasas_complete_cmd_dpc,
1013 .init_adapter = megasas_init_adapter_mfi,
1014 .build_and_issue_cmd = megasas_build_and_issue_cmd,
1015 .issue_dcmd = megasas_issue_dcmd,
1016 };
1017
1018 /**
1019 * This is the end of set of functions & definitions
1020 * specific to gen2 (deviceid : 0x78, 0x79) controllers
1021 */
1022
1023 /*
1024 * Template added for TB (Fusion)
1025 */
1026 extern struct megasas_instance_template megasas_instance_template_fusion;
1027
1028 /**
1029 * megasas_issue_polled - Issues a polling command
1030 * @instance: Adapter soft state
1031 * @cmd: Command packet to be issued
1032 *
1033 * For polling, MFI requires the cmd_status to be set to MFI_STAT_INVALID_STATUS before posting.
1034 */
1035 int
1036 megasas_issue_polled(struct megasas_instance *instance, struct megasas_cmd *cmd)
1037 {
1038 struct megasas_header *frame_hdr = &cmd->frame->hdr;
1039
1040 frame_hdr->cmd_status = MFI_STAT_INVALID_STATUS;
1041 frame_hdr->flags |= cpu_to_le16(MFI_FRAME_DONT_POST_IN_REPLY_QUEUE);
1042
1043 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
1044 dev_err(&instance->pdev->dev, "Failed from %s %d\n",
1045 __func__, __LINE__);
1046 return DCMD_NOT_FIRED;
1047 }
1048
1049 instance->instancet->issue_dcmd(instance, cmd);
1050
1051 return wait_and_poll(instance, cmd, instance->requestorId ?
1052 MEGASAS_ROUTINE_WAIT_TIME_VF : MFI_IO_TIMEOUT_SECS);
1053 }
1054
1055 /**
1056 * megasas_issue_blocked_cmd - Synchronous wrapper around regular FW cmds
1057 * @instance: Adapter soft state
1058 * @cmd: Command to be issued
1059 * @timeout: Timeout in seconds
1060 *
1061 * This function waits on an event for the command to be returned from ISR.
1062 * Max wait time is MEGASAS_INTERNAL_CMD_WAIT_TIME secs
1063 * Used to issue ioctl commands.
1064 */
1065 int
1066 megasas_issue_blocked_cmd(struct megasas_instance *instance,
1067 struct megasas_cmd *cmd, int timeout)
1068 {
1069 int ret = 0;
1070 cmd->cmd_status_drv = MFI_STAT_INVALID_STATUS;
1071
1072 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
1073 dev_err(&instance->pdev->dev, "Failed from %s %d\n",
1074 __func__, __LINE__);
1075 return DCMD_NOT_FIRED;
1076 }
1077
1078 instance->instancet->issue_dcmd(instance, cmd);
1079
1080 if (timeout) {
1081 ret = wait_event_timeout(instance->int_cmd_wait_q,
1082 cmd->cmd_status_drv != MFI_STAT_INVALID_STATUS, timeout * HZ);
1083 if (!ret) {
1084 dev_err(&instance->pdev->dev, "Failed from %s %d DCMD Timed out\n",
1085 __func__, __LINE__);
1086 return DCMD_TIMEOUT;
1087 }
1088 } else
1089 wait_event(instance->int_cmd_wait_q,
1090 cmd->cmd_status_drv != MFI_STAT_INVALID_STATUS);
1091
1092 return (cmd->cmd_status_drv == MFI_STAT_OK) ?
1093 DCMD_SUCCESS : DCMD_FAILED;
1094 }
1095
1096 /**
1097 * megasas_issue_blocked_abort_cmd - Aborts previously issued cmd
1098 * @instance: Adapter soft state
1099 * @cmd_to_abort: Previously issued cmd to be aborted
1100 * @timeout: Timeout in seconds
1101 *
1102 * MFI firmware can abort previously issued AEN comamnd (automatic event
1103 * notification). The megasas_issue_blocked_abort_cmd() issues such abort
1104 * cmd and waits for return status.
1105 * Max wait time is MEGASAS_INTERNAL_CMD_WAIT_TIME secs
1106 */
1107 static int
1108 megasas_issue_blocked_abort_cmd(struct megasas_instance *instance,
1109 struct megasas_cmd *cmd_to_abort, int timeout)
1110 {
1111 struct megasas_cmd *cmd;
1112 struct megasas_abort_frame *abort_fr;
1113 int ret = 0;
1114
1115 cmd = megasas_get_cmd(instance);
1116
1117 if (!cmd)
1118 return -1;
1119
1120 abort_fr = &cmd->frame->abort;
1121
1122 /*
1123 * Prepare and issue the abort frame
1124 */
1125 abort_fr->cmd = MFI_CMD_ABORT;
1126 abort_fr->cmd_status = MFI_STAT_INVALID_STATUS;
1127 abort_fr->flags = cpu_to_le16(0);
1128 abort_fr->abort_context = cpu_to_le32(cmd_to_abort->index);
1129 abort_fr->abort_mfi_phys_addr_lo =
1130 cpu_to_le32(lower_32_bits(cmd_to_abort->frame_phys_addr));
1131 abort_fr->abort_mfi_phys_addr_hi =
1132 cpu_to_le32(upper_32_bits(cmd_to_abort->frame_phys_addr));
1133
1134 cmd->sync_cmd = 1;
1135 cmd->cmd_status_drv = MFI_STAT_INVALID_STATUS;
1136
1137 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
1138 dev_err(&instance->pdev->dev, "Failed from %s %d\n",
1139 __func__, __LINE__);
1140 return DCMD_NOT_FIRED;
1141 }
1142
1143 instance->instancet->issue_dcmd(instance, cmd);
1144
1145 if (timeout) {
1146 ret = wait_event_timeout(instance->abort_cmd_wait_q,
1147 cmd->cmd_status_drv != MFI_STAT_INVALID_STATUS, timeout * HZ);
1148 if (!ret) {
1149 dev_err(&instance->pdev->dev, "Failed from %s %d Abort Timed out\n",
1150 __func__, __LINE__);
1151 return DCMD_TIMEOUT;
1152 }
1153 } else
1154 wait_event(instance->abort_cmd_wait_q,
1155 cmd->cmd_status_drv != MFI_STAT_INVALID_STATUS);
1156
1157 cmd->sync_cmd = 0;
1158
1159 megasas_return_cmd(instance, cmd);
1160 return (cmd->cmd_status_drv == MFI_STAT_OK) ?
1161 DCMD_SUCCESS : DCMD_FAILED;
1162 }
1163
1164 /**
1165 * megasas_make_sgl32 - Prepares 32-bit SGL
1166 * @instance: Adapter soft state
1167 * @scp: SCSI command from the mid-layer
1168 * @mfi_sgl: SGL to be filled in
1169 *
1170 * If successful, this function returns the number of SG elements. Otherwise,
1171 * it returnes -1.
1172 */
1173 static int
1174 megasas_make_sgl32(struct megasas_instance *instance, struct scsi_cmnd *scp,
1175 union megasas_sgl *mfi_sgl)
1176 {
1177 int i;
1178 int sge_count;
1179 struct scatterlist *os_sgl;
1180
1181 sge_count = scsi_dma_map(scp);
1182 BUG_ON(sge_count < 0);
1183
1184 if (sge_count) {
1185 scsi_for_each_sg(scp, os_sgl, sge_count, i) {
1186 mfi_sgl->sge32[i].length = cpu_to_le32(sg_dma_len(os_sgl));
1187 mfi_sgl->sge32[i].phys_addr = cpu_to_le32(sg_dma_address(os_sgl));
1188 }
1189 }
1190 return sge_count;
1191 }
1192
1193 /**
1194 * megasas_make_sgl64 - Prepares 64-bit SGL
1195 * @instance: Adapter soft state
1196 * @scp: SCSI command from the mid-layer
1197 * @mfi_sgl: SGL to be filled in
1198 *
1199 * If successful, this function returns the number of SG elements. Otherwise,
1200 * it returnes -1.
1201 */
1202 static int
1203 megasas_make_sgl64(struct megasas_instance *instance, struct scsi_cmnd *scp,
1204 union megasas_sgl *mfi_sgl)
1205 {
1206 int i;
1207 int sge_count;
1208 struct scatterlist *os_sgl;
1209
1210 sge_count = scsi_dma_map(scp);
1211 BUG_ON(sge_count < 0);
1212
1213 if (sge_count) {
1214 scsi_for_each_sg(scp, os_sgl, sge_count, i) {
1215 mfi_sgl->sge64[i].length = cpu_to_le32(sg_dma_len(os_sgl));
1216 mfi_sgl->sge64[i].phys_addr = cpu_to_le64(sg_dma_address(os_sgl));
1217 }
1218 }
1219 return sge_count;
1220 }
1221
1222 /**
1223 * megasas_make_sgl_skinny - Prepares IEEE SGL
1224 * @instance: Adapter soft state
1225 * @scp: SCSI command from the mid-layer
1226 * @mfi_sgl: SGL to be filled in
1227 *
1228 * If successful, this function returns the number of SG elements. Otherwise,
1229 * it returnes -1.
1230 */
1231 static int
1232 megasas_make_sgl_skinny(struct megasas_instance *instance,
1233 struct scsi_cmnd *scp, union megasas_sgl *mfi_sgl)
1234 {
1235 int i;
1236 int sge_count;
1237 struct scatterlist *os_sgl;
1238
1239 sge_count = scsi_dma_map(scp);
1240
1241 if (sge_count) {
1242 scsi_for_each_sg(scp, os_sgl, sge_count, i) {
1243 mfi_sgl->sge_skinny[i].length =
1244 cpu_to_le32(sg_dma_len(os_sgl));
1245 mfi_sgl->sge_skinny[i].phys_addr =
1246 cpu_to_le64(sg_dma_address(os_sgl));
1247 mfi_sgl->sge_skinny[i].flag = cpu_to_le32(0);
1248 }
1249 }
1250 return sge_count;
1251 }
1252
1253 /**
1254 * megasas_get_frame_count - Computes the number of frames
1255 * @frame_type : type of frame- io or pthru frame
1256 * @sge_count : number of sg elements
1257 *
1258 * Returns the number of frames required for numnber of sge's (sge_count)
1259 */
1260
1261 static u32 megasas_get_frame_count(struct megasas_instance *instance,
1262 u8 sge_count, u8 frame_type)
1263 {
1264 int num_cnt;
1265 int sge_bytes;
1266 u32 sge_sz;
1267 u32 frame_count = 0;
1268
1269 sge_sz = (IS_DMA64) ? sizeof(struct megasas_sge64) :
1270 sizeof(struct megasas_sge32);
1271
1272 if (instance->flag_ieee) {
1273 sge_sz = sizeof(struct megasas_sge_skinny);
1274 }
1275
1276 /*
1277 * Main frame can contain 2 SGEs for 64-bit SGLs and
1278 * 3 SGEs for 32-bit SGLs for ldio &
1279 * 1 SGEs for 64-bit SGLs and
1280 * 2 SGEs for 32-bit SGLs for pthru frame
1281 */
1282 if (unlikely(frame_type == PTHRU_FRAME)) {
1283 if (instance->flag_ieee == 1) {
1284 num_cnt = sge_count - 1;
1285 } else if (IS_DMA64)
1286 num_cnt = sge_count - 1;
1287 else
1288 num_cnt = sge_count - 2;
1289 } else {
1290 if (instance->flag_ieee == 1) {
1291 num_cnt = sge_count - 1;
1292 } else if (IS_DMA64)
1293 num_cnt = sge_count - 2;
1294 else
1295 num_cnt = sge_count - 3;
1296 }
1297
1298 if (num_cnt > 0) {
1299 sge_bytes = sge_sz * num_cnt;
1300
1301 frame_count = (sge_bytes / MEGAMFI_FRAME_SIZE) +
1302 ((sge_bytes % MEGAMFI_FRAME_SIZE) ? 1 : 0) ;
1303 }
1304 /* Main frame */
1305 frame_count += 1;
1306
1307 if (frame_count > 7)
1308 frame_count = 8;
1309 return frame_count;
1310 }
1311
1312 /**
1313 * megasas_build_dcdb - Prepares a direct cdb (DCDB) command
1314 * @instance: Adapter soft state
1315 * @scp: SCSI command
1316 * @cmd: Command to be prepared in
1317 *
1318 * This function prepares CDB commands. These are typcially pass-through
1319 * commands to the devices.
1320 */
1321 static int
1322 megasas_build_dcdb(struct megasas_instance *instance, struct scsi_cmnd *scp,
1323 struct megasas_cmd *cmd)
1324 {
1325 u32 is_logical;
1326 u32 device_id;
1327 u16 flags = 0;
1328 struct megasas_pthru_frame *pthru;
1329
1330 is_logical = MEGASAS_IS_LOGICAL(scp->device);
1331 device_id = MEGASAS_DEV_INDEX(scp);
1332 pthru = (struct megasas_pthru_frame *)cmd->frame;
1333
1334 if (scp->sc_data_direction == PCI_DMA_TODEVICE)
1335 flags = MFI_FRAME_DIR_WRITE;
1336 else if (scp->sc_data_direction == PCI_DMA_FROMDEVICE)
1337 flags = MFI_FRAME_DIR_READ;
1338 else if (scp->sc_data_direction == PCI_DMA_NONE)
1339 flags = MFI_FRAME_DIR_NONE;
1340
1341 if (instance->flag_ieee == 1) {
1342 flags |= MFI_FRAME_IEEE;
1343 }
1344
1345 /*
1346 * Prepare the DCDB frame
1347 */
1348 pthru->cmd = (is_logical) ? MFI_CMD_LD_SCSI_IO : MFI_CMD_PD_SCSI_IO;
1349 pthru->cmd_status = 0x0;
1350 pthru->scsi_status = 0x0;
1351 pthru->target_id = device_id;
1352 pthru->lun = scp->device->lun;
1353 pthru->cdb_len = scp->cmd_len;
1354 pthru->timeout = 0;
1355 pthru->pad_0 = 0;
1356 pthru->flags = cpu_to_le16(flags);
1357 pthru->data_xfer_len = cpu_to_le32(scsi_bufflen(scp));
1358
1359 memcpy(pthru->cdb, scp->cmnd, scp->cmd_len);
1360
1361 /*
1362 * If the command is for the tape device, set the
1363 * pthru timeout to the os layer timeout value.
1364 */
1365 if (scp->device->type == TYPE_TAPE) {
1366 if ((scp->request->timeout / HZ) > 0xFFFF)
1367 pthru->timeout = cpu_to_le16(0xFFFF);
1368 else
1369 pthru->timeout = cpu_to_le16(scp->request->timeout / HZ);
1370 }
1371
1372 /*
1373 * Construct SGL
1374 */
1375 if (instance->flag_ieee == 1) {
1376 pthru->flags |= cpu_to_le16(MFI_FRAME_SGL64);
1377 pthru->sge_count = megasas_make_sgl_skinny(instance, scp,
1378 &pthru->sgl);
1379 } else if (IS_DMA64) {
1380 pthru->flags |= cpu_to_le16(MFI_FRAME_SGL64);
1381 pthru->sge_count = megasas_make_sgl64(instance, scp,
1382 &pthru->sgl);
1383 } else
1384 pthru->sge_count = megasas_make_sgl32(instance, scp,
1385 &pthru->sgl);
1386
1387 if (pthru->sge_count > instance->max_num_sge) {
1388 dev_err(&instance->pdev->dev, "DCDB too many SGE NUM=%x\n",
1389 pthru->sge_count);
1390 return 0;
1391 }
1392
1393 /*
1394 * Sense info specific
1395 */
1396 pthru->sense_len = SCSI_SENSE_BUFFERSIZE;
1397 pthru->sense_buf_phys_addr_hi =
1398 cpu_to_le32(upper_32_bits(cmd->sense_phys_addr));
1399 pthru->sense_buf_phys_addr_lo =
1400 cpu_to_le32(lower_32_bits(cmd->sense_phys_addr));
1401
1402 /*
1403 * Compute the total number of frames this command consumes. FW uses
1404 * this number to pull sufficient number of frames from host memory.
1405 */
1406 cmd->frame_count = megasas_get_frame_count(instance, pthru->sge_count,
1407 PTHRU_FRAME);
1408
1409 return cmd->frame_count;
1410 }
1411
1412 /**
1413 * megasas_build_ldio - Prepares IOs to logical devices
1414 * @instance: Adapter soft state
1415 * @scp: SCSI command
1416 * @cmd: Command to be prepared
1417 *
1418 * Frames (and accompanying SGLs) for regular SCSI IOs use this function.
1419 */
1420 static int
1421 megasas_build_ldio(struct megasas_instance *instance, struct scsi_cmnd *scp,
1422 struct megasas_cmd *cmd)
1423 {
1424 u32 device_id;
1425 u8 sc = scp->cmnd[0];
1426 u16 flags = 0;
1427 struct megasas_io_frame *ldio;
1428
1429 device_id = MEGASAS_DEV_INDEX(scp);
1430 ldio = (struct megasas_io_frame *)cmd->frame;
1431
1432 if (scp->sc_data_direction == PCI_DMA_TODEVICE)
1433 flags = MFI_FRAME_DIR_WRITE;
1434 else if (scp->sc_data_direction == PCI_DMA_FROMDEVICE)
1435 flags = MFI_FRAME_DIR_READ;
1436
1437 if (instance->flag_ieee == 1) {
1438 flags |= MFI_FRAME_IEEE;
1439 }
1440
1441 /*
1442 * Prepare the Logical IO frame: 2nd bit is zero for all read cmds
1443 */
1444 ldio->cmd = (sc & 0x02) ? MFI_CMD_LD_WRITE : MFI_CMD_LD_READ;
1445 ldio->cmd_status = 0x0;
1446 ldio->scsi_status = 0x0;
1447 ldio->target_id = device_id;
1448 ldio->timeout = 0;
1449 ldio->reserved_0 = 0;
1450 ldio->pad_0 = 0;
1451 ldio->flags = cpu_to_le16(flags);
1452 ldio->start_lba_hi = 0;
1453 ldio->access_byte = (scp->cmd_len != 6) ? scp->cmnd[1] : 0;
1454
1455 /*
1456 * 6-byte READ(0x08) or WRITE(0x0A) cdb
1457 */
1458 if (scp->cmd_len == 6) {
1459 ldio->lba_count = cpu_to_le32((u32) scp->cmnd[4]);
1460 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[1] << 16) |
1461 ((u32) scp->cmnd[2] << 8) |
1462 (u32) scp->cmnd[3]);
1463
1464 ldio->start_lba_lo &= cpu_to_le32(0x1FFFFF);
1465 }
1466
1467 /*
1468 * 10-byte READ(0x28) or WRITE(0x2A) cdb
1469 */
1470 else if (scp->cmd_len == 10) {
1471 ldio->lba_count = cpu_to_le32((u32) scp->cmnd[8] |
1472 ((u32) scp->cmnd[7] << 8));
1473 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[2] << 24) |
1474 ((u32) scp->cmnd[3] << 16) |
1475 ((u32) scp->cmnd[4] << 8) |
1476 (u32) scp->cmnd[5]);
1477 }
1478
1479 /*
1480 * 12-byte READ(0xA8) or WRITE(0xAA) cdb
1481 */
1482 else if (scp->cmd_len == 12) {
1483 ldio->lba_count = cpu_to_le32(((u32) scp->cmnd[6] << 24) |
1484 ((u32) scp->cmnd[7] << 16) |
1485 ((u32) scp->cmnd[8] << 8) |
1486 (u32) scp->cmnd[9]);
1487
1488 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[2] << 24) |
1489 ((u32) scp->cmnd[3] << 16) |
1490 ((u32) scp->cmnd[4] << 8) |
1491 (u32) scp->cmnd[5]);
1492 }
1493
1494 /*
1495 * 16-byte READ(0x88) or WRITE(0x8A) cdb
1496 */
1497 else if (scp->cmd_len == 16) {
1498 ldio->lba_count = cpu_to_le32(((u32) scp->cmnd[10] << 24) |
1499 ((u32) scp->cmnd[11] << 16) |
1500 ((u32) scp->cmnd[12] << 8) |
1501 (u32) scp->cmnd[13]);
1502
1503 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[6] << 24) |
1504 ((u32) scp->cmnd[7] << 16) |
1505 ((u32) scp->cmnd[8] << 8) |
1506 (u32) scp->cmnd[9]);
1507
1508 ldio->start_lba_hi = cpu_to_le32(((u32) scp->cmnd[2] << 24) |
1509 ((u32) scp->cmnd[3] << 16) |
1510 ((u32) scp->cmnd[4] << 8) |
1511 (u32) scp->cmnd[5]);
1512
1513 }
1514
1515 /*
1516 * Construct SGL
1517 */
1518 if (instance->flag_ieee) {
1519 ldio->flags |= cpu_to_le16(MFI_FRAME_SGL64);
1520 ldio->sge_count = megasas_make_sgl_skinny(instance, scp,
1521 &ldio->sgl);
1522 } else if (IS_DMA64) {
1523 ldio->flags |= cpu_to_le16(MFI_FRAME_SGL64);
1524 ldio->sge_count = megasas_make_sgl64(instance, scp, &ldio->sgl);
1525 } else
1526 ldio->sge_count = megasas_make_sgl32(instance, scp, &ldio->sgl);
1527
1528 if (ldio->sge_count > instance->max_num_sge) {
1529 dev_err(&instance->pdev->dev, "build_ld_io: sge_count = %x\n",
1530 ldio->sge_count);
1531 return 0;
1532 }
1533
1534 /*
1535 * Sense info specific
1536 */
1537 ldio->sense_len = SCSI_SENSE_BUFFERSIZE;
1538 ldio->sense_buf_phys_addr_hi = 0;
1539 ldio->sense_buf_phys_addr_lo = cpu_to_le32(cmd->sense_phys_addr);
1540
1541 /*
1542 * Compute the total number of frames this command consumes. FW uses
1543 * this number to pull sufficient number of frames from host memory.
1544 */
1545 cmd->frame_count = megasas_get_frame_count(instance,
1546 ldio->sge_count, IO_FRAME);
1547
1548 return cmd->frame_count;
1549 }
1550
1551 /**
1552 * megasas_cmd_type - Checks if the cmd is for logical drive/sysPD
1553 * and whether it's RW or non RW
1554 * @scmd: SCSI command
1555 *
1556 */
1557 inline int megasas_cmd_type(struct scsi_cmnd *cmd)
1558 {
1559 int ret;
1560
1561 switch (cmd->cmnd[0]) {
1562 case READ_10:
1563 case WRITE_10:
1564 case READ_12:
1565 case WRITE_12:
1566 case READ_6:
1567 case WRITE_6:
1568 case READ_16:
1569 case WRITE_16:
1570 ret = (MEGASAS_IS_LOGICAL(cmd->device)) ?
1571 READ_WRITE_LDIO : READ_WRITE_SYSPDIO;
1572 break;
1573 default:
1574 ret = (MEGASAS_IS_LOGICAL(cmd->device)) ?
1575 NON_READ_WRITE_LDIO : NON_READ_WRITE_SYSPDIO;
1576 }
1577 return ret;
1578 }
1579
1580 /**
1581 * megasas_dump_pending_frames - Dumps the frame address of all pending cmds
1582 * in FW
1583 * @instance: Adapter soft state
1584 */
1585 static inline void
1586 megasas_dump_pending_frames(struct megasas_instance *instance)
1587 {
1588 struct megasas_cmd *cmd;
1589 int i,n;
1590 union megasas_sgl *mfi_sgl;
1591 struct megasas_io_frame *ldio;
1592 struct megasas_pthru_frame *pthru;
1593 u32 sgcount;
1594 u16 max_cmd = instance->max_fw_cmds;
1595
1596 dev_err(&instance->pdev->dev, "[%d]: Dumping Frame Phys Address of all pending cmds in FW\n",instance->host->host_no);
1597 dev_err(&instance->pdev->dev, "[%d]: Total OS Pending cmds : %d\n",instance->host->host_no,atomic_read(&instance->fw_outstanding));
1598 if (IS_DMA64)
1599 dev_err(&instance->pdev->dev, "[%d]: 64 bit SGLs were sent to FW\n",instance->host->host_no);
1600 else
1601 dev_err(&instance->pdev->dev, "[%d]: 32 bit SGLs were sent to FW\n",instance->host->host_no);
1602
1603 dev_err(&instance->pdev->dev, "[%d]: Pending OS cmds in FW : \n",instance->host->host_no);
1604 for (i = 0; i < max_cmd; i++) {
1605 cmd = instance->cmd_list[i];
1606 if (!cmd->scmd)
1607 continue;
1608 dev_err(&instance->pdev->dev, "[%d]: Frame addr :0x%08lx : ",instance->host->host_no,(unsigned long)cmd->frame_phys_addr);
1609 if (megasas_cmd_type(cmd->scmd) == READ_WRITE_LDIO) {
1610 ldio = (struct megasas_io_frame *)cmd->frame;
1611 mfi_sgl = &ldio->sgl;
1612 sgcount = ldio->sge_count;
1613 dev_err(&instance->pdev->dev, "[%d]: frame count : 0x%x, Cmd : 0x%x, Tgt id : 0x%x,"
1614 " lba lo : 0x%x, lba_hi : 0x%x, sense_buf addr : 0x%x,sge count : 0x%x\n",
1615 instance->host->host_no, cmd->frame_count, ldio->cmd, ldio->target_id,
1616 le32_to_cpu(ldio->start_lba_lo), le32_to_cpu(ldio->start_lba_hi),
1617 le32_to_cpu(ldio->sense_buf_phys_addr_lo), sgcount);
1618 } else {
1619 pthru = (struct megasas_pthru_frame *) cmd->frame;
1620 mfi_sgl = &pthru->sgl;
1621 sgcount = pthru->sge_count;
1622 dev_err(&instance->pdev->dev, "[%d]: frame count : 0x%x, Cmd : 0x%x, Tgt id : 0x%x, "
1623 "lun : 0x%x, cdb_len : 0x%x, data xfer len : 0x%x, sense_buf addr : 0x%x,sge count : 0x%x\n",
1624 instance->host->host_no, cmd->frame_count, pthru->cmd, pthru->target_id,
1625 pthru->lun, pthru->cdb_len, le32_to_cpu(pthru->data_xfer_len),
1626 le32_to_cpu(pthru->sense_buf_phys_addr_lo), sgcount);
1627 }
1628 if (megasas_dbg_lvl & MEGASAS_DBG_LVL) {
1629 for (n = 0; n < sgcount; n++) {
1630 if (IS_DMA64)
1631 dev_err(&instance->pdev->dev, "sgl len : 0x%x, sgl addr : 0x%llx\n",
1632 le32_to_cpu(mfi_sgl->sge64[n].length),
1633 le64_to_cpu(mfi_sgl->sge64[n].phys_addr));
1634 else
1635 dev_err(&instance->pdev->dev, "sgl len : 0x%x, sgl addr : 0x%x\n",
1636 le32_to_cpu(mfi_sgl->sge32[n].length),
1637 le32_to_cpu(mfi_sgl->sge32[n].phys_addr));
1638 }
1639 }
1640 } /*for max_cmd*/
1641 dev_err(&instance->pdev->dev, "[%d]: Pending Internal cmds in FW : \n",instance->host->host_no);
1642 for (i = 0; i < max_cmd; i++) {
1643
1644 cmd = instance->cmd_list[i];
1645
1646 if (cmd->sync_cmd == 1)
1647 dev_err(&instance->pdev->dev, "0x%08lx : ", (unsigned long)cmd->frame_phys_addr);
1648 }
1649 dev_err(&instance->pdev->dev, "[%d]: Dumping Done\n\n",instance->host->host_no);
1650 }
1651
1652 u32
1653 megasas_build_and_issue_cmd(struct megasas_instance *instance,
1654 struct scsi_cmnd *scmd)
1655 {
1656 struct megasas_cmd *cmd;
1657 u32 frame_count;
1658
1659 cmd = megasas_get_cmd(instance);
1660 if (!cmd)
1661 return SCSI_MLQUEUE_HOST_BUSY;
1662
1663 /*
1664 * Logical drive command
1665 */
1666 if (megasas_cmd_type(scmd) == READ_WRITE_LDIO)
1667 frame_count = megasas_build_ldio(instance, scmd, cmd);
1668 else
1669 frame_count = megasas_build_dcdb(instance, scmd, cmd);
1670
1671 if (!frame_count)
1672 goto out_return_cmd;
1673
1674 cmd->scmd = scmd;
1675 scmd->SCp.ptr = (char *)cmd;
1676
1677 /*
1678 * Issue the command to the FW
1679 */
1680 atomic_inc(&instance->fw_outstanding);
1681
1682 instance->instancet->fire_cmd(instance, cmd->frame_phys_addr,
1683 cmd->frame_count-1, instance->reg_set);
1684
1685 return 0;
1686 out_return_cmd:
1687 megasas_return_cmd(instance, cmd);
1688 return SCSI_MLQUEUE_HOST_BUSY;
1689 }
1690
1691
1692 /**
1693 * megasas_queue_command - Queue entry point
1694 * @scmd: SCSI command to be queued
1695 * @done: Callback entry point
1696 */
1697 static int
1698 megasas_queue_command(struct Scsi_Host *shost, struct scsi_cmnd *scmd)
1699 {
1700 struct megasas_instance *instance;
1701 struct MR_PRIV_DEVICE *mr_device_priv_data;
1702
1703 instance = (struct megasas_instance *)
1704 scmd->device->host->hostdata;
1705
1706 if (instance->unload == 1) {
1707 scmd->result = DID_NO_CONNECT << 16;
1708 scmd->scsi_done(scmd);
1709 return 0;
1710 }
1711
1712 if (instance->issuepend_done == 0)
1713 return SCSI_MLQUEUE_HOST_BUSY;
1714
1715
1716 /* Check for an mpio path and adjust behavior */
1717 if (atomic_read(&instance->adprecovery) == MEGASAS_ADPRESET_SM_INFAULT) {
1718 if (megasas_check_mpio_paths(instance, scmd) ==
1719 (DID_REQUEUE << 16)) {
1720 return SCSI_MLQUEUE_HOST_BUSY;
1721 } else {
1722 scmd->result = DID_NO_CONNECT << 16;
1723 scmd->scsi_done(scmd);
1724 return 0;
1725 }
1726 }
1727
1728 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
1729 scmd->result = DID_NO_CONNECT << 16;
1730 scmd->scsi_done(scmd);
1731 return 0;
1732 }
1733
1734 mr_device_priv_data = scmd->device->hostdata;
1735 if (!mr_device_priv_data) {
1736 scmd->result = DID_NO_CONNECT << 16;
1737 scmd->scsi_done(scmd);
1738 return 0;
1739 }
1740
1741 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL)
1742 return SCSI_MLQUEUE_HOST_BUSY;
1743
1744 if (mr_device_priv_data->tm_busy)
1745 return SCSI_MLQUEUE_DEVICE_BUSY;
1746
1747
1748 scmd->result = 0;
1749
1750 if (MEGASAS_IS_LOGICAL(scmd->device) &&
1751 (scmd->device->id >= instance->fw_supported_vd_count ||
1752 scmd->device->lun)) {
1753 scmd->result = DID_BAD_TARGET << 16;
1754 goto out_done;
1755 }
1756
1757 if ((scmd->cmnd[0] == SYNCHRONIZE_CACHE) &&
1758 MEGASAS_IS_LOGICAL(scmd->device) &&
1759 (!instance->fw_sync_cache_support)) {
1760 scmd->result = DID_OK << 16;
1761 goto out_done;
1762 }
1763
1764 return instance->instancet->build_and_issue_cmd(instance, scmd);
1765
1766 out_done:
1767 scmd->scsi_done(scmd);
1768 return 0;
1769 }
1770
1771 static struct megasas_instance *megasas_lookup_instance(u16 host_no)
1772 {
1773 int i;
1774
1775 for (i = 0; i < megasas_mgmt_info.max_index; i++) {
1776
1777 if ((megasas_mgmt_info.instance[i]) &&
1778 (megasas_mgmt_info.instance[i]->host->host_no == host_no))
1779 return megasas_mgmt_info.instance[i];
1780 }
1781
1782 return NULL;
1783 }
1784
1785 /*
1786 * megasas_set_dynamic_target_properties -
1787 * Device property set by driver may not be static and it is required to be
1788 * updated after OCR
1789 *
1790 * set tm_capable.
1791 * set dma alignment (only for eedp protection enable vd).
1792 *
1793 * @sdev: OS provided scsi device
1794 *
1795 * Returns void
1796 */
1797 void megasas_set_dynamic_target_properties(struct scsi_device *sdev)
1798 {
1799 u16 pd_index = 0, ld;
1800 u32 device_id;
1801 struct megasas_instance *instance;
1802 struct fusion_context *fusion;
1803 struct MR_PRIV_DEVICE *mr_device_priv_data;
1804 struct MR_PD_CFG_SEQ_NUM_SYNC *pd_sync;
1805 struct MR_LD_RAID *raid;
1806 struct MR_DRV_RAID_MAP_ALL *local_map_ptr;
1807
1808 instance = megasas_lookup_instance(sdev->host->host_no);
1809 fusion = instance->ctrl_context;
1810 mr_device_priv_data = sdev->hostdata;
1811
1812 if (!fusion || !mr_device_priv_data)
1813 return;
1814
1815 if (MEGASAS_IS_LOGICAL(sdev)) {
1816 device_id = ((sdev->channel % 2) * MEGASAS_MAX_DEV_PER_CHANNEL)
1817 + sdev->id;
1818 local_map_ptr = fusion->ld_drv_map[(instance->map_id & 1)];
1819 ld = MR_TargetIdToLdGet(device_id, local_map_ptr);
1820 if (ld >= instance->fw_supported_vd_count)
1821 return;
1822 raid = MR_LdRaidGet(ld, local_map_ptr);
1823
1824 if (raid->capability.ldPiMode == MR_PROT_INFO_TYPE_CONTROLLER)
1825 blk_queue_update_dma_alignment(sdev->request_queue, 0x7);
1826
1827 mr_device_priv_data->is_tm_capable =
1828 raid->capability.tmCapable;
1829 } else if (instance->use_seqnum_jbod_fp) {
1830 pd_index = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) +
1831 sdev->id;
1832 pd_sync = (void *)fusion->pd_seq_sync
1833 [(instance->pd_seq_map_id - 1) & 1];
1834 mr_device_priv_data->is_tm_capable =
1835 pd_sync->seq[pd_index].capability.tmCapable;
1836 }
1837 }
1838
1839 /*
1840 * megasas_set_nvme_device_properties -
1841 * set nomerges=2
1842 * set virtual page boundary = 4K (current mr_nvme_pg_size is 4K).
1843 * set maximum io transfer = MDTS of NVME device provided by MR firmware.
1844 *
1845 * MR firmware provides value in KB. Caller of this function converts
1846 * kb into bytes.
1847 *
1848 * e.a MDTS=5 means 2^5 * nvme page size. (In case of 4K page size,
1849 * MR firmware provides value 128 as (32 * 4K) = 128K.
1850 *
1851 * @sdev: scsi device
1852 * @max_io_size: maximum io transfer size
1853 *
1854 */
1855 static inline void
1856 megasas_set_nvme_device_properties(struct scsi_device *sdev, u32 max_io_size)
1857 {
1858 struct megasas_instance *instance;
1859 u32 mr_nvme_pg_size;
1860
1861 instance = (struct megasas_instance *)sdev->host->hostdata;
1862 mr_nvme_pg_size = max_t(u32, instance->nvme_page_size,
1863 MR_DEFAULT_NVME_PAGE_SIZE);
1864
1865 blk_queue_max_hw_sectors(sdev->request_queue, (max_io_size / 512));
1866
1867 blk_queue_flag_set(QUEUE_FLAG_NOMERGES, sdev->request_queue);
1868 blk_queue_virt_boundary(sdev->request_queue, mr_nvme_pg_size - 1);
1869 }
1870
1871
1872 /*
1873 * megasas_set_static_target_properties -
1874 * Device property set by driver are static and it is not required to be
1875 * updated after OCR.
1876 *
1877 * set io timeout
1878 * set device queue depth
1879 * set nvme device properties. see - megasas_set_nvme_device_properties
1880 *
1881 * @sdev: scsi device
1882 * @is_target_prop true, if fw provided target properties.
1883 */
1884 static void megasas_set_static_target_properties(struct scsi_device *sdev,
1885 bool is_target_prop)
1886 {
1887 u16 target_index = 0;
1888 u8 interface_type;
1889 u32 device_qd = MEGASAS_DEFAULT_CMD_PER_LUN;
1890 u32 max_io_size_kb = MR_DEFAULT_NVME_MDTS_KB;
1891 u32 tgt_device_qd;
1892 struct megasas_instance *instance;
1893 struct MR_PRIV_DEVICE *mr_device_priv_data;
1894
1895 instance = megasas_lookup_instance(sdev->host->host_no);
1896 mr_device_priv_data = sdev->hostdata;
1897 interface_type = mr_device_priv_data->interface_type;
1898
1899 /*
1900 * The RAID firmware may require extended timeouts.
1901 */
1902 blk_queue_rq_timeout(sdev->request_queue, scmd_timeout * HZ);
1903
1904 target_index = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + sdev->id;
1905
1906 switch (interface_type) {
1907 case SAS_PD:
1908 device_qd = MEGASAS_SAS_QD;
1909 break;
1910 case SATA_PD:
1911 device_qd = MEGASAS_SATA_QD;
1912 break;
1913 case NVME_PD:
1914 device_qd = MEGASAS_NVME_QD;
1915 break;
1916 }
1917
1918 if (is_target_prop) {
1919 tgt_device_qd = le32_to_cpu(instance->tgt_prop->device_qdepth);
1920 if (tgt_device_qd &&
1921 (tgt_device_qd <= instance->host->can_queue))
1922 device_qd = tgt_device_qd;
1923
1924 /* max_io_size_kb will be set to non zero for
1925 * nvme based vd and syspd.
1926 */
1927 max_io_size_kb = le32_to_cpu(instance->tgt_prop->max_io_size_kb);
1928 }
1929
1930 if (instance->nvme_page_size && max_io_size_kb)
1931 megasas_set_nvme_device_properties(sdev, (max_io_size_kb << 10));
1932
1933 scsi_change_queue_depth(sdev, device_qd);
1934
1935 }
1936
1937
1938 static int megasas_slave_configure(struct scsi_device *sdev)
1939 {
1940 u16 pd_index = 0;
1941 struct megasas_instance *instance;
1942 int ret_target_prop = DCMD_FAILED;
1943 bool is_target_prop = false;
1944
1945 instance = megasas_lookup_instance(sdev->host->host_no);
1946 if (instance->pd_list_not_supported) {
1947 if (!MEGASAS_IS_LOGICAL(sdev) && sdev->type == TYPE_DISK) {
1948 pd_index = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) +
1949 sdev->id;
1950 if (instance->pd_list[pd_index].driveState !=
1951 MR_PD_STATE_SYSTEM)
1952 return -ENXIO;
1953 }
1954 }
1955
1956 mutex_lock(&instance->reset_mutex);
1957 /* Send DCMD to Firmware and cache the information */
1958 if ((instance->pd_info) && !MEGASAS_IS_LOGICAL(sdev))
1959 megasas_get_pd_info(instance, sdev);
1960
1961 /* Some ventura firmware may not have instance->nvme_page_size set.
1962 * Do not send MR_DCMD_DRV_GET_TARGET_PROP
1963 */
1964 if ((instance->tgt_prop) && (instance->nvme_page_size))
1965 ret_target_prop = megasas_get_target_prop(instance, sdev);
1966
1967 is_target_prop = (ret_target_prop == DCMD_SUCCESS) ? true : false;
1968 megasas_set_static_target_properties(sdev, is_target_prop);
1969
1970 mutex_unlock(&instance->reset_mutex);
1971
1972 /* This sdev property may change post OCR */
1973 megasas_set_dynamic_target_properties(sdev);
1974
1975 return 0;
1976 }
1977
1978 static int megasas_slave_alloc(struct scsi_device *sdev)
1979 {
1980 u16 pd_index = 0;
1981 struct megasas_instance *instance ;
1982 struct MR_PRIV_DEVICE *mr_device_priv_data;
1983
1984 instance = megasas_lookup_instance(sdev->host->host_no);
1985 if (!MEGASAS_IS_LOGICAL(sdev)) {
1986 /*
1987 * Open the OS scan to the SYSTEM PD
1988 */
1989 pd_index =
1990 (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) +
1991 sdev->id;
1992 if ((instance->pd_list_not_supported ||
1993 instance->pd_list[pd_index].driveState ==
1994 MR_PD_STATE_SYSTEM)) {
1995 goto scan_target;
1996 }
1997 return -ENXIO;
1998 }
1999
2000 scan_target:
2001 mr_device_priv_data = kzalloc(sizeof(*mr_device_priv_data),
2002 GFP_KERNEL);
2003 if (!mr_device_priv_data)
2004 return -ENOMEM;
2005 sdev->hostdata = mr_device_priv_data;
2006
2007 atomic_set(&mr_device_priv_data->r1_ldio_hint,
2008 instance->r1_ldio_hint_default);
2009 return 0;
2010 }
2011
2012 static void megasas_slave_destroy(struct scsi_device *sdev)
2013 {
2014 kfree(sdev->hostdata);
2015 sdev->hostdata = NULL;
2016 }
2017
2018 /*
2019 * megasas_complete_outstanding_ioctls - Complete outstanding ioctls after a
2020 * kill adapter
2021 * @instance: Adapter soft state
2022 *
2023 */
2024 static void megasas_complete_outstanding_ioctls(struct megasas_instance *instance)
2025 {
2026 int i;
2027 struct megasas_cmd *cmd_mfi;
2028 struct megasas_cmd_fusion *cmd_fusion;
2029 struct fusion_context *fusion = instance->ctrl_context;
2030
2031 /* Find all outstanding ioctls */
2032 if (fusion) {
2033 for (i = 0; i < instance->max_fw_cmds; i++) {
2034 cmd_fusion = fusion->cmd_list[i];
2035 if (cmd_fusion->sync_cmd_idx != (u32)ULONG_MAX) {
2036 cmd_mfi = instance->cmd_list[cmd_fusion->sync_cmd_idx];
2037 if (cmd_mfi->sync_cmd &&
2038 (cmd_mfi->frame->hdr.cmd != MFI_CMD_ABORT)) {
2039 cmd_mfi->frame->hdr.cmd_status =
2040 MFI_STAT_WRONG_STATE;
2041 megasas_complete_cmd(instance,
2042 cmd_mfi, DID_OK);
2043 }
2044 }
2045 }
2046 } else {
2047 for (i = 0; i < instance->max_fw_cmds; i++) {
2048 cmd_mfi = instance->cmd_list[i];
2049 if (cmd_mfi->sync_cmd && cmd_mfi->frame->hdr.cmd !=
2050 MFI_CMD_ABORT)
2051 megasas_complete_cmd(instance, cmd_mfi, DID_OK);
2052 }
2053 }
2054 }
2055
2056
2057 void megaraid_sas_kill_hba(struct megasas_instance *instance)
2058 {
2059 /* Set critical error to block I/O & ioctls in case caller didn't */
2060 atomic_set(&instance->adprecovery, MEGASAS_HW_CRITICAL_ERROR);
2061 /* Wait 1 second to ensure IO or ioctls in build have posted */
2062 msleep(1000);
2063 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
2064 (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY) ||
2065 (instance->adapter_type != MFI_SERIES)) {
2066 writel(MFI_STOP_ADP, &instance->reg_set->doorbell);
2067 /* Flush */
2068 readl(&instance->reg_set->doorbell);
2069 if (instance->requestorId && instance->peerIsPresent)
2070 memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS);
2071 } else {
2072 writel(MFI_STOP_ADP,
2073 &instance->reg_set->inbound_doorbell);
2074 }
2075 /* Complete outstanding ioctls when adapter is killed */
2076 megasas_complete_outstanding_ioctls(instance);
2077 }
2078
2079 /**
2080 * megasas_check_and_restore_queue_depth - Check if queue depth needs to be
2081 * restored to max value
2082 * @instance: Adapter soft state
2083 *
2084 */
2085 void
2086 megasas_check_and_restore_queue_depth(struct megasas_instance *instance)
2087 {
2088 unsigned long flags;
2089
2090 if (instance->flag & MEGASAS_FW_BUSY
2091 && time_after(jiffies, instance->last_time + 5 * HZ)
2092 && atomic_read(&instance->fw_outstanding) <
2093 instance->throttlequeuedepth + 1) {
2094
2095 spin_lock_irqsave(instance->host->host_lock, flags);
2096 instance->flag &= ~MEGASAS_FW_BUSY;
2097
2098 instance->host->can_queue = instance->cur_can_queue;
2099 spin_unlock_irqrestore(instance->host->host_lock, flags);
2100 }
2101 }
2102
2103 /**
2104 * megasas_complete_cmd_dpc - Returns FW's controller structure
2105 * @instance_addr: Address of adapter soft state
2106 *
2107 * Tasklet to complete cmds
2108 */
2109 static void megasas_complete_cmd_dpc(unsigned long instance_addr)
2110 {
2111 u32 producer;
2112 u32 consumer;
2113 u32 context;
2114 struct megasas_cmd *cmd;
2115 struct megasas_instance *instance =
2116 (struct megasas_instance *)instance_addr;
2117 unsigned long flags;
2118
2119 /* If we have already declared adapter dead, donot complete cmds */
2120 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR)
2121 return;
2122
2123 spin_lock_irqsave(&instance->completion_lock, flags);
2124
2125 producer = le32_to_cpu(*instance->producer);
2126 consumer = le32_to_cpu(*instance->consumer);
2127
2128 while (consumer != producer) {
2129 context = le32_to_cpu(instance->reply_queue[consumer]);
2130 if (context >= instance->max_fw_cmds) {
2131 dev_err(&instance->pdev->dev, "Unexpected context value %x\n",
2132 context);
2133 BUG();
2134 }
2135
2136 cmd = instance->cmd_list[context];
2137
2138 megasas_complete_cmd(instance, cmd, DID_OK);
2139
2140 consumer++;
2141 if (consumer == (instance->max_fw_cmds + 1)) {
2142 consumer = 0;
2143 }
2144 }
2145
2146 *instance->consumer = cpu_to_le32(producer);
2147
2148 spin_unlock_irqrestore(&instance->completion_lock, flags);
2149
2150 /*
2151 * Check if we can restore can_queue
2152 */
2153 megasas_check_and_restore_queue_depth(instance);
2154 }
2155
2156 static void megasas_sriov_heartbeat_handler(struct timer_list *t);
2157
2158 /**
2159 * megasas_start_timer - Initializes sriov heartbeat timer object
2160 * @instance: Adapter soft state
2161 *
2162 */
2163 void megasas_start_timer(struct megasas_instance *instance)
2164 {
2165 struct timer_list *timer = &instance->sriov_heartbeat_timer;
2166
2167 timer_setup(timer, megasas_sriov_heartbeat_handler, 0);
2168 timer->expires = jiffies + MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF;
2169 add_timer(timer);
2170 }
2171
2172 static void
2173 megasas_internal_reset_defer_cmds(struct megasas_instance *instance);
2174
2175 static void
2176 process_fw_state_change_wq(struct work_struct *work);
2177
2178 void megasas_do_ocr(struct megasas_instance *instance)
2179 {
2180 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS1064R) ||
2181 (instance->pdev->device == PCI_DEVICE_ID_DELL_PERC5) ||
2182 (instance->pdev->device == PCI_DEVICE_ID_LSI_VERDE_ZCR)) {
2183 *instance->consumer = cpu_to_le32(MEGASAS_ADPRESET_INPROG_SIGN);
2184 }
2185 instance->instancet->disable_intr(instance);
2186 atomic_set(&instance->adprecovery, MEGASAS_ADPRESET_SM_INFAULT);
2187 instance->issuepend_done = 0;
2188
2189 atomic_set(&instance->fw_outstanding, 0);
2190 megasas_internal_reset_defer_cmds(instance);
2191 process_fw_state_change_wq(&instance->work_init);
2192 }
2193
2194 static int megasas_get_ld_vf_affiliation_111(struct megasas_instance *instance,
2195 int initial)
2196 {
2197 struct megasas_cmd *cmd;
2198 struct megasas_dcmd_frame *dcmd;
2199 struct MR_LD_VF_AFFILIATION_111 *new_affiliation_111 = NULL;
2200 dma_addr_t new_affiliation_111_h;
2201 int ld, retval = 0;
2202 u8 thisVf;
2203
2204 cmd = megasas_get_cmd(instance);
2205
2206 if (!cmd) {
2207 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_vf_affiliation_111:"
2208 "Failed to get cmd for scsi%d\n",
2209 instance->host->host_no);
2210 return -ENOMEM;
2211 }
2212
2213 dcmd = &cmd->frame->dcmd;
2214
2215 if (!instance->vf_affiliation_111) {
2216 dev_warn(&instance->pdev->dev, "SR-IOV: Couldn't get LD/VF "
2217 "affiliation for scsi%d\n", instance->host->host_no);
2218 megasas_return_cmd(instance, cmd);
2219 return -ENOMEM;
2220 }
2221
2222 if (initial)
2223 memset(instance->vf_affiliation_111, 0,
2224 sizeof(struct MR_LD_VF_AFFILIATION_111));
2225 else {
2226 new_affiliation_111 =
2227 pci_zalloc_consistent(instance->pdev,
2228 sizeof(struct MR_LD_VF_AFFILIATION_111),
2229 &new_affiliation_111_h);
2230 if (!new_affiliation_111) {
2231 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate "
2232 "memory for new affiliation for scsi%d\n",
2233 instance->host->host_no);
2234 megasas_return_cmd(instance, cmd);
2235 return -ENOMEM;
2236 }
2237 }
2238
2239 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
2240
2241 dcmd->cmd = MFI_CMD_DCMD;
2242 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
2243 dcmd->sge_count = 1;
2244 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_BOTH);
2245 dcmd->timeout = 0;
2246 dcmd->pad_0 = 0;
2247 dcmd->data_xfer_len =
2248 cpu_to_le32(sizeof(struct MR_LD_VF_AFFILIATION_111));
2249 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_VF_MAP_GET_ALL_LDS_111);
2250
2251 if (initial)
2252 dcmd->sgl.sge32[0].phys_addr =
2253 cpu_to_le32(instance->vf_affiliation_111_h);
2254 else
2255 dcmd->sgl.sge32[0].phys_addr =
2256 cpu_to_le32(new_affiliation_111_h);
2257
2258 dcmd->sgl.sge32[0].length = cpu_to_le32(
2259 sizeof(struct MR_LD_VF_AFFILIATION_111));
2260
2261 dev_warn(&instance->pdev->dev, "SR-IOV: Getting LD/VF affiliation for "
2262 "scsi%d\n", instance->host->host_no);
2263
2264 if (megasas_issue_blocked_cmd(instance, cmd, 0) != DCMD_SUCCESS) {
2265 dev_warn(&instance->pdev->dev, "SR-IOV: LD/VF affiliation DCMD"
2266 " failed with status 0x%x for scsi%d\n",
2267 dcmd->cmd_status, instance->host->host_no);
2268 retval = 1; /* Do a scan if we couldn't get affiliation */
2269 goto out;
2270 }
2271
2272 if (!initial) {
2273 thisVf = new_affiliation_111->thisVf;
2274 for (ld = 0 ; ld < new_affiliation_111->vdCount; ld++)
2275 if (instance->vf_affiliation_111->map[ld].policy[thisVf] !=
2276 new_affiliation_111->map[ld].policy[thisVf]) {
2277 dev_warn(&instance->pdev->dev, "SR-IOV: "
2278 "Got new LD/VF affiliation for scsi%d\n",
2279 instance->host->host_no);
2280 memcpy(instance->vf_affiliation_111,
2281 new_affiliation_111,
2282 sizeof(struct MR_LD_VF_AFFILIATION_111));
2283 retval = 1;
2284 goto out;
2285 }
2286 }
2287 out:
2288 if (new_affiliation_111) {
2289 pci_free_consistent(instance->pdev,
2290 sizeof(struct MR_LD_VF_AFFILIATION_111),
2291 new_affiliation_111,
2292 new_affiliation_111_h);
2293 }
2294
2295 megasas_return_cmd(instance, cmd);
2296
2297 return retval;
2298 }
2299
2300 static int megasas_get_ld_vf_affiliation_12(struct megasas_instance *instance,
2301 int initial)
2302 {
2303 struct megasas_cmd *cmd;
2304 struct megasas_dcmd_frame *dcmd;
2305 struct MR_LD_VF_AFFILIATION *new_affiliation = NULL;
2306 struct MR_LD_VF_MAP *newmap = NULL, *savedmap = NULL;
2307 dma_addr_t new_affiliation_h;
2308 int i, j, retval = 0, found = 0, doscan = 0;
2309 u8 thisVf;
2310
2311 cmd = megasas_get_cmd(instance);
2312
2313 if (!cmd) {
2314 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_vf_affiliation12: "
2315 "Failed to get cmd for scsi%d\n",
2316 instance->host->host_no);
2317 return -ENOMEM;
2318 }
2319
2320 dcmd = &cmd->frame->dcmd;
2321
2322 if (!instance->vf_affiliation) {
2323 dev_warn(&instance->pdev->dev, "SR-IOV: Couldn't get LD/VF "
2324 "affiliation for scsi%d\n", instance->host->host_no);
2325 megasas_return_cmd(instance, cmd);
2326 return -ENOMEM;
2327 }
2328
2329 if (initial)
2330 memset(instance->vf_affiliation, 0, (MAX_LOGICAL_DRIVES + 1) *
2331 sizeof(struct MR_LD_VF_AFFILIATION));
2332 else {
2333 new_affiliation =
2334 pci_zalloc_consistent(instance->pdev,
2335 (MAX_LOGICAL_DRIVES + 1) *
2336 sizeof(struct MR_LD_VF_AFFILIATION),
2337 &new_affiliation_h);
2338 if (!new_affiliation) {
2339 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate "
2340 "memory for new affiliation for scsi%d\n",
2341 instance->host->host_no);
2342 megasas_return_cmd(instance, cmd);
2343 return -ENOMEM;
2344 }
2345 }
2346
2347 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
2348
2349 dcmd->cmd = MFI_CMD_DCMD;
2350 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
2351 dcmd->sge_count = 1;
2352 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_BOTH);
2353 dcmd->timeout = 0;
2354 dcmd->pad_0 = 0;
2355 dcmd->data_xfer_len = cpu_to_le32((MAX_LOGICAL_DRIVES + 1) *
2356 sizeof(struct MR_LD_VF_AFFILIATION));
2357 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_VF_MAP_GET_ALL_LDS);
2358
2359 if (initial)
2360 dcmd->sgl.sge32[0].phys_addr =
2361 cpu_to_le32(instance->vf_affiliation_h);
2362 else
2363 dcmd->sgl.sge32[0].phys_addr =
2364 cpu_to_le32(new_affiliation_h);
2365
2366 dcmd->sgl.sge32[0].length = cpu_to_le32((MAX_LOGICAL_DRIVES + 1) *
2367 sizeof(struct MR_LD_VF_AFFILIATION));
2368
2369 dev_warn(&instance->pdev->dev, "SR-IOV: Getting LD/VF affiliation for "
2370 "scsi%d\n", instance->host->host_no);
2371
2372
2373 if (megasas_issue_blocked_cmd(instance, cmd, 0) != DCMD_SUCCESS) {
2374 dev_warn(&instance->pdev->dev, "SR-IOV: LD/VF affiliation DCMD"
2375 " failed with status 0x%x for scsi%d\n",
2376 dcmd->cmd_status, instance->host->host_no);
2377 retval = 1; /* Do a scan if we couldn't get affiliation */
2378 goto out;
2379 }
2380
2381 if (!initial) {
2382 if (!new_affiliation->ldCount) {
2383 dev_warn(&instance->pdev->dev, "SR-IOV: Got new LD/VF "
2384 "affiliation for passive path for scsi%d\n",
2385 instance->host->host_no);
2386 retval = 1;
2387 goto out;
2388 }
2389 newmap = new_affiliation->map;
2390 savedmap = instance->vf_affiliation->map;
2391 thisVf = new_affiliation->thisVf;
2392 for (i = 0 ; i < new_affiliation->ldCount; i++) {
2393 found = 0;
2394 for (j = 0; j < instance->vf_affiliation->ldCount;
2395 j++) {
2396 if (newmap->ref.targetId ==
2397 savedmap->ref.targetId) {
2398 found = 1;
2399 if (newmap->policy[thisVf] !=
2400 savedmap->policy[thisVf]) {
2401 doscan = 1;
2402 goto out;
2403 }
2404 }
2405 savedmap = (struct MR_LD_VF_MAP *)
2406 ((unsigned char *)savedmap +
2407 savedmap->size);
2408 }
2409 if (!found && newmap->policy[thisVf] !=
2410 MR_LD_ACCESS_HIDDEN) {
2411 doscan = 1;
2412 goto out;
2413 }
2414 newmap = (struct MR_LD_VF_MAP *)
2415 ((unsigned char *)newmap + newmap->size);
2416 }
2417
2418 newmap = new_affiliation->map;
2419 savedmap = instance->vf_affiliation->map;
2420
2421 for (i = 0 ; i < instance->vf_affiliation->ldCount; i++) {
2422 found = 0;
2423 for (j = 0 ; j < new_affiliation->ldCount; j++) {
2424 if (savedmap->ref.targetId ==
2425 newmap->ref.targetId) {
2426 found = 1;
2427 if (savedmap->policy[thisVf] !=
2428 newmap->policy[thisVf]) {
2429 doscan = 1;
2430 goto out;
2431 }
2432 }
2433 newmap = (struct MR_LD_VF_MAP *)
2434 ((unsigned char *)newmap +
2435 newmap->size);
2436 }
2437 if (!found && savedmap->policy[thisVf] !=
2438 MR_LD_ACCESS_HIDDEN) {
2439 doscan = 1;
2440 goto out;
2441 }
2442 savedmap = (struct MR_LD_VF_MAP *)
2443 ((unsigned char *)savedmap +
2444 savedmap->size);
2445 }
2446 }
2447 out:
2448 if (doscan) {
2449 dev_warn(&instance->pdev->dev, "SR-IOV: Got new LD/VF "
2450 "affiliation for scsi%d\n", instance->host->host_no);
2451 memcpy(instance->vf_affiliation, new_affiliation,
2452 new_affiliation->size);
2453 retval = 1;
2454 }
2455
2456 if (new_affiliation)
2457 pci_free_consistent(instance->pdev,
2458 (MAX_LOGICAL_DRIVES + 1) *
2459 sizeof(struct MR_LD_VF_AFFILIATION),
2460 new_affiliation, new_affiliation_h);
2461 megasas_return_cmd(instance, cmd);
2462
2463 return retval;
2464 }
2465
2466 /* This function will get the current SR-IOV LD/VF affiliation */
2467 static int megasas_get_ld_vf_affiliation(struct megasas_instance *instance,
2468 int initial)
2469 {
2470 int retval;
2471
2472 if (instance->PlasmaFW111)
2473 retval = megasas_get_ld_vf_affiliation_111(instance, initial);
2474 else
2475 retval = megasas_get_ld_vf_affiliation_12(instance, initial);
2476 return retval;
2477 }
2478
2479 /* This function will tell FW to start the SR-IOV heartbeat */
2480 int megasas_sriov_start_heartbeat(struct megasas_instance *instance,
2481 int initial)
2482 {
2483 struct megasas_cmd *cmd;
2484 struct megasas_dcmd_frame *dcmd;
2485 int retval = 0;
2486
2487 cmd = megasas_get_cmd(instance);
2488
2489 if (!cmd) {
2490 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_sriov_start_heartbeat: "
2491 "Failed to get cmd for scsi%d\n",
2492 instance->host->host_no);
2493 return -ENOMEM;
2494 }
2495
2496 dcmd = &cmd->frame->dcmd;
2497
2498 if (initial) {
2499 instance->hb_host_mem =
2500 pci_zalloc_consistent(instance->pdev,
2501 sizeof(struct MR_CTRL_HB_HOST_MEM),
2502 &instance->hb_host_mem_h);
2503 if (!instance->hb_host_mem) {
2504 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate"
2505 " memory for heartbeat host memory for scsi%d\n",
2506 instance->host->host_no);
2507 retval = -ENOMEM;
2508 goto out;
2509 }
2510 }
2511
2512 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
2513
2514 dcmd->mbox.s[0] = cpu_to_le16(sizeof(struct MR_CTRL_HB_HOST_MEM));
2515 dcmd->cmd = MFI_CMD_DCMD;
2516 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
2517 dcmd->sge_count = 1;
2518 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_BOTH);
2519 dcmd->timeout = 0;
2520 dcmd->pad_0 = 0;
2521 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_CTRL_HB_HOST_MEM));
2522 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_SHARED_HOST_MEM_ALLOC);
2523
2524 megasas_set_dma_settings(instance, dcmd, instance->hb_host_mem_h,
2525 sizeof(struct MR_CTRL_HB_HOST_MEM));
2526
2527 dev_warn(&instance->pdev->dev, "SR-IOV: Starting heartbeat for scsi%d\n",
2528 instance->host->host_no);
2529
2530 if ((instance->adapter_type != MFI_SERIES) &&
2531 !instance->mask_interrupts)
2532 retval = megasas_issue_blocked_cmd(instance, cmd,
2533 MEGASAS_ROUTINE_WAIT_TIME_VF);
2534 else
2535 retval = megasas_issue_polled(instance, cmd);
2536
2537 if (retval) {
2538 dev_warn(&instance->pdev->dev, "SR-IOV: MR_DCMD_CTRL_SHARED_HOST"
2539 "_MEM_ALLOC DCMD %s for scsi%d\n",
2540 (dcmd->cmd_status == MFI_STAT_INVALID_STATUS) ?
2541 "timed out" : "failed", instance->host->host_no);
2542 retval = 1;
2543 }
2544
2545 out:
2546 megasas_return_cmd(instance, cmd);
2547
2548 return retval;
2549 }
2550
2551 /* Handler for SR-IOV heartbeat */
2552 static void megasas_sriov_heartbeat_handler(struct timer_list *t)
2553 {
2554 struct megasas_instance *instance =
2555 from_timer(instance, t, sriov_heartbeat_timer);
2556
2557 if (instance->hb_host_mem->HB.fwCounter !=
2558 instance->hb_host_mem->HB.driverCounter) {
2559 instance->hb_host_mem->HB.driverCounter =
2560 instance->hb_host_mem->HB.fwCounter;
2561 mod_timer(&instance->sriov_heartbeat_timer,
2562 jiffies + MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF);
2563 } else {
2564 dev_warn(&instance->pdev->dev, "SR-IOV: Heartbeat never "
2565 "completed for scsi%d\n", instance->host->host_no);
2566 schedule_work(&instance->work_init);
2567 }
2568 }
2569
2570 /**
2571 * megasas_wait_for_outstanding - Wait for all outstanding cmds
2572 * @instance: Adapter soft state
2573 *
2574 * This function waits for up to MEGASAS_RESET_WAIT_TIME seconds for FW to
2575 * complete all its outstanding commands. Returns error if one or more IOs
2576 * are pending after this time period. It also marks the controller dead.
2577 */
2578 static int megasas_wait_for_outstanding(struct megasas_instance *instance)
2579 {
2580 int i, sl, outstanding;
2581 u32 reset_index;
2582 u32 wait_time = MEGASAS_RESET_WAIT_TIME;
2583 unsigned long flags;
2584 struct list_head clist_local;
2585 struct megasas_cmd *reset_cmd;
2586 u32 fw_state;
2587
2588 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
2589 dev_info(&instance->pdev->dev, "%s:%d HBA is killed.\n",
2590 __func__, __LINE__);
2591 return FAILED;
2592 }
2593
2594 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) {
2595
2596 INIT_LIST_HEAD(&clist_local);
2597 spin_lock_irqsave(&instance->hba_lock, flags);
2598 list_splice_init(&instance->internal_reset_pending_q,
2599 &clist_local);
2600 spin_unlock_irqrestore(&instance->hba_lock, flags);
2601
2602 dev_notice(&instance->pdev->dev, "HBA reset wait ...\n");
2603 for (i = 0; i < wait_time; i++) {
2604 msleep(1000);
2605 if (atomic_read(&instance->adprecovery) == MEGASAS_HBA_OPERATIONAL)
2606 break;
2607 }
2608
2609 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) {
2610 dev_notice(&instance->pdev->dev, "reset: Stopping HBA.\n");
2611 atomic_set(&instance->adprecovery, MEGASAS_HW_CRITICAL_ERROR);
2612 return FAILED;
2613 }
2614
2615 reset_index = 0;
2616 while (!list_empty(&clist_local)) {
2617 reset_cmd = list_entry((&clist_local)->next,
2618 struct megasas_cmd, list);
2619 list_del_init(&reset_cmd->list);
2620 if (reset_cmd->scmd) {
2621 reset_cmd->scmd->result = DID_REQUEUE << 16;
2622 dev_notice(&instance->pdev->dev, "%d:%p reset [%02x]\n",
2623 reset_index, reset_cmd,
2624 reset_cmd->scmd->cmnd[0]);
2625
2626 reset_cmd->scmd->scsi_done(reset_cmd->scmd);
2627 megasas_return_cmd(instance, reset_cmd);
2628 } else if (reset_cmd->sync_cmd) {
2629 dev_notice(&instance->pdev->dev, "%p synch cmds"
2630 "reset queue\n",
2631 reset_cmd);
2632
2633 reset_cmd->cmd_status_drv = MFI_STAT_INVALID_STATUS;
2634 instance->instancet->fire_cmd(instance,
2635 reset_cmd->frame_phys_addr,
2636 0, instance->reg_set);
2637 } else {
2638 dev_notice(&instance->pdev->dev, "%p unexpected"
2639 "cmds lst\n",
2640 reset_cmd);
2641 }
2642 reset_index++;
2643 }
2644
2645 return SUCCESS;
2646 }
2647
2648 for (i = 0; i < resetwaittime; i++) {
2649 outstanding = atomic_read(&instance->fw_outstanding);
2650
2651 if (!outstanding)
2652 break;
2653
2654 if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) {
2655 dev_notice(&instance->pdev->dev, "[%2d]waiting for %d "
2656 "commands to complete\n",i,outstanding);
2657 /*
2658 * Call cmd completion routine. Cmd to be
2659 * be completed directly without depending on isr.
2660 */
2661 megasas_complete_cmd_dpc((unsigned long)instance);
2662 }
2663
2664 msleep(1000);
2665 }
2666
2667 i = 0;
2668 outstanding = atomic_read(&instance->fw_outstanding);
2669 fw_state = instance->instancet->read_fw_status_reg(instance->reg_set) & MFI_STATE_MASK;
2670
2671 if ((!outstanding && (fw_state == MFI_STATE_OPERATIONAL)))
2672 goto no_outstanding;
2673
2674 if (instance->disableOnlineCtrlReset)
2675 goto kill_hba_and_failed;
2676 do {
2677 if ((fw_state == MFI_STATE_FAULT) || atomic_read(&instance->fw_outstanding)) {
2678 dev_info(&instance->pdev->dev,
2679 "%s:%d waiting_for_outstanding: before issue OCR. FW state = 0x%x, oustanding 0x%x\n",
2680 __func__, __LINE__, fw_state, atomic_read(&instance->fw_outstanding));
2681 if (i == 3)
2682 goto kill_hba_and_failed;
2683 megasas_do_ocr(instance);
2684
2685 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
2686 dev_info(&instance->pdev->dev, "%s:%d OCR failed and HBA is killed.\n",
2687 __func__, __LINE__);
2688 return FAILED;
2689 }
2690 dev_info(&instance->pdev->dev, "%s:%d waiting_for_outstanding: after issue OCR.\n",
2691 __func__, __LINE__);
2692
2693 for (sl = 0; sl < 10; sl++)
2694 msleep(500);
2695
2696 outstanding = atomic_read(&instance->fw_outstanding);
2697
2698 fw_state = instance->instancet->read_fw_status_reg(instance->reg_set) & MFI_STATE_MASK;
2699 if ((!outstanding && (fw_state == MFI_STATE_OPERATIONAL)))
2700 goto no_outstanding;
2701 }
2702 i++;
2703 } while (i <= 3);
2704
2705 no_outstanding:
2706
2707 dev_info(&instance->pdev->dev, "%s:%d no more pending commands remain after reset handling.\n",
2708 __func__, __LINE__);
2709 return SUCCESS;
2710
2711 kill_hba_and_failed:
2712
2713 /* Reset not supported, kill adapter */
2714 dev_info(&instance->pdev->dev, "%s:%d killing adapter scsi%d"
2715 " disableOnlineCtrlReset %d fw_outstanding %d \n",
2716 __func__, __LINE__, instance->host->host_no, instance->disableOnlineCtrlReset,
2717 atomic_read(&instance->fw_outstanding));
2718 megasas_dump_pending_frames(instance);
2719 megaraid_sas_kill_hba(instance);
2720
2721 return FAILED;
2722 }
2723
2724 /**
2725 * megasas_generic_reset - Generic reset routine
2726 * @scmd: Mid-layer SCSI command
2727 *
2728 * This routine implements a generic reset handler for device, bus and host
2729 * reset requests. Device, bus and host specific reset handlers can use this
2730 * function after they do their specific tasks.
2731 */
2732 static int megasas_generic_reset(struct scsi_cmnd *scmd)
2733 {
2734 int ret_val;
2735 struct megasas_instance *instance;
2736
2737 instance = (struct megasas_instance *)scmd->device->host->hostdata;
2738
2739 scmd_printk(KERN_NOTICE, scmd, "megasas: RESET cmd=%x retries=%x\n",
2740 scmd->cmnd[0], scmd->retries);
2741
2742 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
2743 dev_err(&instance->pdev->dev, "cannot recover from previous reset failures\n");
2744 return FAILED;
2745 }
2746
2747 ret_val = megasas_wait_for_outstanding(instance);
2748 if (ret_val == SUCCESS)
2749 dev_notice(&instance->pdev->dev, "reset successful\n");
2750 else
2751 dev_err(&instance->pdev->dev, "failed to do reset\n");
2752
2753 return ret_val;
2754 }
2755
2756 /**
2757 * megasas_reset_timer - quiesce the adapter if required
2758 * @scmd: scsi cmnd
2759 *
2760 * Sets the FW busy flag and reduces the host->can_queue if the
2761 * cmd has not been completed within the timeout period.
2762 */
2763 static enum
2764 blk_eh_timer_return megasas_reset_timer(struct scsi_cmnd *scmd)
2765 {
2766 struct megasas_instance *instance;
2767 unsigned long flags;
2768
2769 if (time_after(jiffies, scmd->jiffies_at_alloc +
2770 (scmd_timeout * 2) * HZ)) {
2771 return BLK_EH_DONE;
2772 }
2773
2774 instance = (struct megasas_instance *)scmd->device->host->hostdata;
2775 if (!(instance->flag & MEGASAS_FW_BUSY)) {
2776 /* FW is busy, throttle IO */
2777 spin_lock_irqsave(instance->host->host_lock, flags);
2778
2779 instance->host->can_queue = instance->throttlequeuedepth;
2780 instance->last_time = jiffies;
2781 instance->flag |= MEGASAS_FW_BUSY;
2782
2783 spin_unlock_irqrestore(instance->host->host_lock, flags);
2784 }
2785 return BLK_EH_RESET_TIMER;
2786 }
2787
2788 /**
2789 * megasas_dump_frame - This function will dump MPT/MFI frame
2790 */
2791 static inline void
2792 megasas_dump_frame(void *mpi_request, int sz)
2793 {
2794 int i;
2795 __le32 *mfp = (__le32 *)mpi_request;
2796
2797 printk(KERN_INFO "IO request frame:\n\t");
2798 for (i = 0; i < sz / sizeof(__le32); i++) {
2799 if (i && ((i % 8) == 0))
2800 printk("\n\t");
2801 printk("%08x ", le32_to_cpu(mfp[i]));
2802 }
2803 printk("\n");
2804 }
2805
2806 /**
2807 * megasas_reset_bus_host - Bus & host reset handler entry point
2808 */
2809 static int megasas_reset_bus_host(struct scsi_cmnd *scmd)
2810 {
2811 int ret;
2812 struct megasas_instance *instance;
2813
2814 instance = (struct megasas_instance *)scmd->device->host->hostdata;
2815
2816 scmd_printk(KERN_INFO, scmd,
2817 "Controller reset is requested due to IO timeout\n"
2818 "SCSI command pointer: (%p)\t SCSI host state: %d\t"
2819 " SCSI host busy: %d\t FW outstanding: %d\n",
2820 scmd, scmd->device->host->shost_state,
2821 atomic_read((atomic_t *)&scmd->device->host->host_busy),
2822 atomic_read(&instance->fw_outstanding));
2823
2824 /*
2825 * First wait for all commands to complete
2826 */
2827 if (instance->adapter_type == MFI_SERIES) {
2828 ret = megasas_generic_reset(scmd);
2829 } else {
2830 struct megasas_cmd_fusion *cmd;
2831 cmd = (struct megasas_cmd_fusion *)scmd->SCp.ptr;
2832 if (cmd)
2833 megasas_dump_frame(cmd->io_request,
2834 MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE);
2835 ret = megasas_reset_fusion(scmd->device->host,
2836 SCSIIO_TIMEOUT_OCR);
2837 }
2838
2839 return ret;
2840 }
2841
2842 /**
2843 * megasas_task_abort - Issues task abort request to firmware
2844 * (supported only for fusion adapters)
2845 * @scmd: SCSI command pointer
2846 */
2847 static int megasas_task_abort(struct scsi_cmnd *scmd)
2848 {
2849 int ret;
2850 struct megasas_instance *instance;
2851
2852 instance = (struct megasas_instance *)scmd->device->host->hostdata;
2853
2854 if (instance->adapter_type != MFI_SERIES)
2855 ret = megasas_task_abort_fusion(scmd);
2856 else {
2857 sdev_printk(KERN_NOTICE, scmd->device, "TASK ABORT not supported\n");
2858 ret = FAILED;
2859 }
2860
2861 return ret;
2862 }
2863
2864 /**
2865 * megasas_reset_target: Issues target reset request to firmware
2866 * (supported only for fusion adapters)
2867 * @scmd: SCSI command pointer
2868 */
2869 static int megasas_reset_target(struct scsi_cmnd *scmd)
2870 {
2871 int ret;
2872 struct megasas_instance *instance;
2873
2874 instance = (struct megasas_instance *)scmd->device->host->hostdata;
2875
2876 if (instance->adapter_type != MFI_SERIES)
2877 ret = megasas_reset_target_fusion(scmd);
2878 else {
2879 sdev_printk(KERN_NOTICE, scmd->device, "TARGET RESET not supported\n");
2880 ret = FAILED;
2881 }
2882
2883 return ret;
2884 }
2885
2886 /**
2887 * megasas_bios_param - Returns disk geometry for a disk
2888 * @sdev: device handle
2889 * @bdev: block device
2890 * @capacity: drive capacity
2891 * @geom: geometry parameters
2892 */
2893 static int
2894 megasas_bios_param(struct scsi_device *sdev, struct block_device *bdev,
2895 sector_t capacity, int geom[])
2896 {
2897 int heads;
2898 int sectors;
2899 sector_t cylinders;
2900 unsigned long tmp;
2901
2902 /* Default heads (64) & sectors (32) */
2903 heads = 64;
2904 sectors = 32;
2905
2906 tmp = heads * sectors;
2907 cylinders = capacity;
2908
2909 sector_div(cylinders, tmp);
2910
2911 /*
2912 * Handle extended translation size for logical drives > 1Gb
2913 */
2914
2915 if (capacity >= 0x200000) {
2916 heads = 255;
2917 sectors = 63;
2918 tmp = heads*sectors;
2919 cylinders = capacity;
2920 sector_div(cylinders, tmp);
2921 }
2922
2923 geom[0] = heads;
2924 geom[1] = sectors;
2925 geom[2] = cylinders;
2926
2927 return 0;
2928 }
2929
2930 static void megasas_aen_polling(struct work_struct *work);
2931
2932 /**
2933 * megasas_service_aen - Processes an event notification
2934 * @instance: Adapter soft state
2935 * @cmd: AEN command completed by the ISR
2936 *
2937 * For AEN, driver sends a command down to FW that is held by the FW till an
2938 * event occurs. When an event of interest occurs, FW completes the command
2939 * that it was previously holding.
2940 *
2941 * This routines sends SIGIO signal to processes that have registered with the
2942 * driver for AEN.
2943 */
2944 static void
2945 megasas_service_aen(struct megasas_instance *instance, struct megasas_cmd *cmd)
2946 {
2947 unsigned long flags;
2948
2949 /*
2950 * Don't signal app if it is just an aborted previously registered aen
2951 */
2952 if ((!cmd->abort_aen) && (instance->unload == 0)) {
2953 spin_lock_irqsave(&poll_aen_lock, flags);
2954 megasas_poll_wait_aen = 1;
2955 spin_unlock_irqrestore(&poll_aen_lock, flags);
2956 wake_up(&megasas_poll_wait);
2957 kill_fasync(&megasas_async_queue, SIGIO, POLL_IN);
2958 }
2959 else
2960 cmd->abort_aen = 0;
2961
2962 instance->aen_cmd = NULL;
2963
2964 megasas_return_cmd(instance, cmd);
2965
2966 if ((instance->unload == 0) &&
2967 ((instance->issuepend_done == 1))) {
2968 struct megasas_aen_event *ev;
2969
2970 ev = kzalloc(sizeof(*ev), GFP_ATOMIC);
2971 if (!ev) {
2972 dev_err(&instance->pdev->dev, "megasas_service_aen: out of memory\n");
2973 } else {
2974 ev->instance = instance;
2975 instance->ev = ev;
2976 INIT_DELAYED_WORK(&ev->hotplug_work,
2977 megasas_aen_polling);
2978 schedule_delayed_work(&ev->hotplug_work, 0);
2979 }
2980 }
2981 }
2982
2983 static ssize_t
2984 megasas_fw_crash_buffer_store(struct device *cdev,
2985 struct device_attribute *attr, const char *buf, size_t count)
2986 {
2987 struct Scsi_Host *shost = class_to_shost(cdev);
2988 struct megasas_instance *instance =
2989 (struct megasas_instance *) shost->hostdata;
2990 int val = 0;
2991 unsigned long flags;
2992
2993 if (kstrtoint(buf, 0, &val) != 0)
2994 return -EINVAL;
2995
2996 spin_lock_irqsave(&instance->crashdump_lock, flags);
2997 instance->fw_crash_buffer_offset = val;
2998 spin_unlock_irqrestore(&instance->crashdump_lock, flags);
2999 return strlen(buf);
3000 }
3001
3002 static ssize_t
3003 megasas_fw_crash_buffer_show(struct device *cdev,
3004 struct device_attribute *attr, char *buf)
3005 {
3006 struct Scsi_Host *shost = class_to_shost(cdev);
3007 struct megasas_instance *instance =
3008 (struct megasas_instance *) shost->hostdata;
3009 u32 size;
3010 unsigned long buff_addr;
3011 unsigned long dmachunk = CRASH_DMA_BUF_SIZE;
3012 unsigned long src_addr;
3013 unsigned long flags;
3014 u32 buff_offset;
3015
3016 spin_lock_irqsave(&instance->crashdump_lock, flags);
3017 buff_offset = instance->fw_crash_buffer_offset;
3018 if (!instance->crash_dump_buf &&
3019 !((instance->fw_crash_state == AVAILABLE) ||
3020 (instance->fw_crash_state == COPYING))) {
3021 dev_err(&instance->pdev->dev,
3022 "Firmware crash dump is not available\n");
3023 spin_unlock_irqrestore(&instance->crashdump_lock, flags);
3024 return -EINVAL;
3025 }
3026
3027 buff_addr = (unsigned long) buf;
3028
3029 if (buff_offset > (instance->fw_crash_buffer_size * dmachunk)) {
3030 dev_err(&instance->pdev->dev,
3031 "Firmware crash dump offset is out of range\n");
3032 spin_unlock_irqrestore(&instance->crashdump_lock, flags);
3033 return 0;
3034 }
3035
3036 size = (instance->fw_crash_buffer_size * dmachunk) - buff_offset;
3037 size = (size >= PAGE_SIZE) ? (PAGE_SIZE - 1) : size;
3038
3039 src_addr = (unsigned long)instance->crash_buf[buff_offset / dmachunk] +
3040 (buff_offset % dmachunk);
3041 memcpy(buf, (void *)src_addr, size);
3042 spin_unlock_irqrestore(&instance->crashdump_lock, flags);
3043
3044 return size;
3045 }
3046
3047 static ssize_t
3048 megasas_fw_crash_buffer_size_show(struct device *cdev,
3049 struct device_attribute *attr, char *buf)
3050 {
3051 struct Scsi_Host *shost = class_to_shost(cdev);
3052 struct megasas_instance *instance =
3053 (struct megasas_instance *) shost->hostdata;
3054
3055 return snprintf(buf, PAGE_SIZE, "%ld\n", (unsigned long)
3056 ((instance->fw_crash_buffer_size) * 1024 * 1024)/PAGE_SIZE);
3057 }
3058
3059 static ssize_t
3060 megasas_fw_crash_state_store(struct device *cdev,
3061 struct device_attribute *attr, const char *buf, size_t count)
3062 {
3063 struct Scsi_Host *shost = class_to_shost(cdev);
3064 struct megasas_instance *instance =
3065 (struct megasas_instance *) shost->hostdata;
3066 int val = 0;
3067 unsigned long flags;
3068
3069 if (kstrtoint(buf, 0, &val) != 0)
3070 return -EINVAL;
3071
3072 if ((val <= AVAILABLE || val > COPY_ERROR)) {
3073 dev_err(&instance->pdev->dev, "application updates invalid "
3074 "firmware crash state\n");
3075 return -EINVAL;
3076 }
3077
3078 instance->fw_crash_state = val;
3079
3080 if ((val == COPIED) || (val == COPY_ERROR)) {
3081 spin_lock_irqsave(&instance->crashdump_lock, flags);
3082 megasas_free_host_crash_buffer(instance);
3083 spin_unlock_irqrestore(&instance->crashdump_lock, flags);
3084 if (val == COPY_ERROR)
3085 dev_info(&instance->pdev->dev, "application failed to "
3086 "copy Firmware crash dump\n");
3087 else
3088 dev_info(&instance->pdev->dev, "Firmware crash dump "
3089 "copied successfully\n");
3090 }
3091 return strlen(buf);
3092 }
3093
3094 static ssize_t
3095 megasas_fw_crash_state_show(struct device *cdev,
3096 struct device_attribute *attr, char *buf)
3097 {
3098 struct Scsi_Host *shost = class_to_shost(cdev);
3099 struct megasas_instance *instance =
3100 (struct megasas_instance *) shost->hostdata;
3101
3102 return snprintf(buf, PAGE_SIZE, "%d\n", instance->fw_crash_state);
3103 }
3104
3105 static ssize_t
3106 megasas_page_size_show(struct device *cdev,
3107 struct device_attribute *attr, char *buf)
3108 {
3109 return snprintf(buf, PAGE_SIZE, "%ld\n", (unsigned long)PAGE_SIZE - 1);
3110 }
3111
3112 static ssize_t
3113 megasas_ldio_outstanding_show(struct device *cdev, struct device_attribute *attr,
3114 char *buf)
3115 {
3116 struct Scsi_Host *shost = class_to_shost(cdev);
3117 struct megasas_instance *instance = (struct megasas_instance *)shost->hostdata;
3118
3119 return snprintf(buf, PAGE_SIZE, "%d\n", atomic_read(&instance->ldio_outstanding));
3120 }
3121
3122 static ssize_t
3123 megasas_fw_cmds_outstanding_show(struct device *cdev,
3124 struct device_attribute *attr, char *buf)
3125 {
3126 struct Scsi_Host *shost = class_to_shost(cdev);
3127 struct megasas_instance *instance = (struct megasas_instance *)shost->hostdata;
3128
3129 return snprintf(buf, PAGE_SIZE, "%d\n", atomic_read(&instance->fw_outstanding));
3130 }
3131
3132 static DEVICE_ATTR(fw_crash_buffer, S_IRUGO | S_IWUSR,
3133 megasas_fw_crash_buffer_show, megasas_fw_crash_buffer_store);
3134 static DEVICE_ATTR(fw_crash_buffer_size, S_IRUGO,
3135 megasas_fw_crash_buffer_size_show, NULL);
3136 static DEVICE_ATTR(fw_crash_state, S_IRUGO | S_IWUSR,
3137 megasas_fw_crash_state_show, megasas_fw_crash_state_store);
3138 static DEVICE_ATTR(page_size, S_IRUGO,
3139 megasas_page_size_show, NULL);
3140 static DEVICE_ATTR(ldio_outstanding, S_IRUGO,
3141 megasas_ldio_outstanding_show, NULL);
3142 static DEVICE_ATTR(fw_cmds_outstanding, S_IRUGO,
3143 megasas_fw_cmds_outstanding_show, NULL);
3144
3145 struct device_attribute *megaraid_host_attrs[] = {
3146 &dev_attr_fw_crash_buffer_size,
3147 &dev_attr_fw_crash_buffer,
3148 &dev_attr_fw_crash_state,
3149 &dev_attr_page_size,
3150 &dev_attr_ldio_outstanding,
3151 &dev_attr_fw_cmds_outstanding,
3152 NULL,
3153 };
3154
3155 /*
3156 * Scsi host template for megaraid_sas driver
3157 */
3158 static struct scsi_host_template megasas_template = {
3159
3160 .module = THIS_MODULE,
3161 .name = "Avago SAS based MegaRAID driver",
3162 .proc_name = "megaraid_sas",
3163 .slave_configure = megasas_slave_configure,
3164 .slave_alloc = megasas_slave_alloc,
3165 .slave_destroy = megasas_slave_destroy,
3166 .queuecommand = megasas_queue_command,
3167 .eh_target_reset_handler = megasas_reset_target,
3168 .eh_abort_handler = megasas_task_abort,
3169 .eh_host_reset_handler = megasas_reset_bus_host,
3170 .eh_timed_out = megasas_reset_timer,
3171 .shost_attrs = megaraid_host_attrs,
3172 .bios_param = megasas_bios_param,
3173 .use_clustering = ENABLE_CLUSTERING,
3174 .change_queue_depth = scsi_change_queue_depth,
3175 .no_write_same = 1,
3176 };
3177
3178 /**
3179 * megasas_complete_int_cmd - Completes an internal command
3180 * @instance: Adapter soft state
3181 * @cmd: Command to be completed
3182 *
3183 * The megasas_issue_blocked_cmd() function waits for a command to complete
3184 * after it issues a command. This function wakes up that waiting routine by
3185 * calling wake_up() on the wait queue.
3186 */
3187 static void
3188 megasas_complete_int_cmd(struct megasas_instance *instance,
3189 struct megasas_cmd *cmd)
3190 {
3191 cmd->cmd_status_drv = cmd->frame->io.cmd_status;
3192 wake_up(&instance->int_cmd_wait_q);
3193 }
3194
3195 /**
3196 * megasas_complete_abort - Completes aborting a command
3197 * @instance: Adapter soft state
3198 * @cmd: Cmd that was issued to abort another cmd
3199 *
3200 * The megasas_issue_blocked_abort_cmd() function waits on abort_cmd_wait_q
3201 * after it issues an abort on a previously issued command. This function
3202 * wakes up all functions waiting on the same wait queue.
3203 */
3204 static void
3205 megasas_complete_abort(struct megasas_instance *instance,
3206 struct megasas_cmd *cmd)
3207 {
3208 if (cmd->sync_cmd) {
3209 cmd->sync_cmd = 0;
3210 cmd->cmd_status_drv = 0;
3211 wake_up(&instance->abort_cmd_wait_q);
3212 }
3213 }
3214
3215 /**
3216 * megasas_complete_cmd - Completes a command
3217 * @instance: Adapter soft state
3218 * @cmd: Command to be completed
3219 * @alt_status: If non-zero, use this value as status to
3220 * SCSI mid-layer instead of the value returned
3221 * by the FW. This should be used if caller wants
3222 * an alternate status (as in the case of aborted
3223 * commands)
3224 */
3225 void
3226 megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd,
3227 u8 alt_status)
3228 {
3229 int exception = 0;
3230 struct megasas_header *hdr = &cmd->frame->hdr;
3231 unsigned long flags;
3232 struct fusion_context *fusion = instance->ctrl_context;
3233 u32 opcode, status;
3234
3235 /* flag for the retry reset */
3236 cmd->retry_for_fw_reset = 0;
3237
3238 if (cmd->scmd)
3239 cmd->scmd->SCp.ptr = NULL;
3240
3241 switch (hdr->cmd) {
3242 case MFI_CMD_INVALID:
3243 /* Some older 1068 controller FW may keep a pended
3244 MR_DCMD_CTRL_EVENT_GET_INFO left over from the main kernel
3245 when booting the kdump kernel. Ignore this command to
3246 prevent a kernel panic on shutdown of the kdump kernel. */
3247 dev_warn(&instance->pdev->dev, "MFI_CMD_INVALID command "
3248 "completed\n");
3249 dev_warn(&instance->pdev->dev, "If you have a controller "
3250 "other than PERC5, please upgrade your firmware\n");
3251 break;
3252 case MFI_CMD_PD_SCSI_IO:
3253 case MFI_CMD_LD_SCSI_IO:
3254
3255 /*
3256 * MFI_CMD_PD_SCSI_IO and MFI_CMD_LD_SCSI_IO could have been
3257 * issued either through an IO path or an IOCTL path. If it
3258 * was via IOCTL, we will send it to internal completion.
3259 */
3260 if (cmd->sync_cmd) {
3261 cmd->sync_cmd = 0;
3262 megasas_complete_int_cmd(instance, cmd);
3263 break;
3264 }
3265
3266 case MFI_CMD_LD_READ:
3267 case MFI_CMD_LD_WRITE:
3268
3269 if (alt_status) {
3270 cmd->scmd->result = alt_status << 16;
3271 exception = 1;
3272 }
3273
3274 if (exception) {
3275
3276 atomic_dec(&instance->fw_outstanding);
3277
3278 scsi_dma_unmap(cmd->scmd);
3279 cmd->scmd->scsi_done(cmd->scmd);
3280 megasas_return_cmd(instance, cmd);
3281
3282 break;
3283 }
3284
3285 switch (hdr->cmd_status) {
3286
3287 case MFI_STAT_OK:
3288 cmd->scmd->result = DID_OK << 16;
3289 break;
3290
3291 case MFI_STAT_SCSI_IO_FAILED:
3292 case MFI_STAT_LD_INIT_IN_PROGRESS:
3293 cmd->scmd->result =
3294 (DID_ERROR << 16) | hdr->scsi_status;
3295 break;
3296
3297 case MFI_STAT_SCSI_DONE_WITH_ERROR:
3298
3299 cmd->scmd->result = (DID_OK << 16) | hdr->scsi_status;
3300
3301 if (hdr->scsi_status == SAM_STAT_CHECK_CONDITION) {
3302 memset(cmd->scmd->sense_buffer, 0,
3303 SCSI_SENSE_BUFFERSIZE);
3304 memcpy(cmd->scmd->sense_buffer, cmd->sense,
3305 hdr->sense_len);
3306
3307 cmd->scmd->result |= DRIVER_SENSE << 24;
3308 }
3309
3310 break;
3311
3312 case MFI_STAT_LD_OFFLINE:
3313 case MFI_STAT_DEVICE_NOT_FOUND:
3314 cmd->scmd->result = DID_BAD_TARGET << 16;
3315 break;
3316
3317 default:
3318 dev_printk(KERN_DEBUG, &instance->pdev->dev, "MFI FW status %#x\n",
3319 hdr->cmd_status);
3320 cmd->scmd->result = DID_ERROR << 16;
3321 break;
3322 }
3323
3324 atomic_dec(&instance->fw_outstanding);
3325
3326 scsi_dma_unmap(cmd->scmd);
3327 cmd->scmd->scsi_done(cmd->scmd);
3328 megasas_return_cmd(instance, cmd);
3329
3330 break;
3331
3332 case MFI_CMD_SMP:
3333 case MFI_CMD_STP:
3334 case MFI_CMD_NVME:
3335 megasas_complete_int_cmd(instance, cmd);
3336 break;
3337
3338 case MFI_CMD_DCMD:
3339 opcode = le32_to_cpu(cmd->frame->dcmd.opcode);
3340 /* Check for LD map update */
3341 if ((opcode == MR_DCMD_LD_MAP_GET_INFO)
3342 && (cmd->frame->dcmd.mbox.b[1] == 1)) {
3343 fusion->fast_path_io = 0;
3344 spin_lock_irqsave(instance->host->host_lock, flags);
3345 status = cmd->frame->hdr.cmd_status;
3346 instance->map_update_cmd = NULL;
3347 if (status != MFI_STAT_OK) {
3348 if (status != MFI_STAT_NOT_FOUND)
3349 dev_warn(&instance->pdev->dev, "map syncfailed, status = 0x%x\n",
3350 cmd->frame->hdr.cmd_status);
3351 else {
3352 megasas_return_cmd(instance, cmd);
3353 spin_unlock_irqrestore(
3354 instance->host->host_lock,
3355 flags);
3356 break;
3357 }
3358 }
3359
3360 megasas_return_cmd(instance, cmd);
3361
3362 /*
3363 * Set fast path IO to ZERO.
3364 * Validate Map will set proper value.
3365 * Meanwhile all IOs will go as LD IO.
3366 */
3367 if (status == MFI_STAT_OK &&
3368 (MR_ValidateMapInfo(instance, (instance->map_id + 1)))) {
3369 instance->map_id++;
3370 fusion->fast_path_io = 1;
3371 } else {
3372 fusion->fast_path_io = 0;
3373 }
3374
3375 megasas_sync_map_info(instance);
3376 spin_unlock_irqrestore(instance->host->host_lock,
3377 flags);
3378 break;
3379 }
3380 if (opcode == MR_DCMD_CTRL_EVENT_GET_INFO ||
3381 opcode == MR_DCMD_CTRL_EVENT_GET) {
3382 spin_lock_irqsave(&poll_aen_lock, flags);
3383 megasas_poll_wait_aen = 0;
3384 spin_unlock_irqrestore(&poll_aen_lock, flags);
3385 }
3386
3387 /* FW has an updated PD sequence */
3388 if ((opcode == MR_DCMD_SYSTEM_PD_MAP_GET_INFO) &&
3389 (cmd->frame->dcmd.mbox.b[0] == 1)) {
3390
3391 spin_lock_irqsave(instance->host->host_lock, flags);
3392 status = cmd->frame->hdr.cmd_status;
3393 instance->jbod_seq_cmd = NULL;
3394 megasas_return_cmd(instance, cmd);
3395
3396 if (status == MFI_STAT_OK) {
3397 instance->pd_seq_map_id++;
3398 /* Re-register a pd sync seq num cmd */
3399 if (megasas_sync_pd_seq_num(instance, true))
3400 instance->use_seqnum_jbod_fp = false;
3401 } else
3402 instance->use_seqnum_jbod_fp = false;
3403
3404 spin_unlock_irqrestore(instance->host->host_lock, flags);
3405 break;
3406 }
3407
3408 /*
3409 * See if got an event notification
3410 */
3411 if (opcode == MR_DCMD_CTRL_EVENT_WAIT)
3412 megasas_service_aen(instance, cmd);
3413 else
3414 megasas_complete_int_cmd(instance, cmd);
3415
3416 break;
3417
3418 case MFI_CMD_ABORT:
3419 /*
3420 * Cmd issued to abort another cmd returned
3421 */
3422 megasas_complete_abort(instance, cmd);
3423 break;
3424
3425 default:
3426 dev_info(&instance->pdev->dev, "Unknown command completed! [0x%X]\n",
3427 hdr->cmd);
3428 megasas_complete_int_cmd(instance, cmd);
3429 break;
3430 }
3431 }
3432
3433 /**
3434 * megasas_issue_pending_cmds_again - issue all pending cmds
3435 * in FW again because of the fw reset
3436 * @instance: Adapter soft state
3437 */
3438 static inline void
3439 megasas_issue_pending_cmds_again(struct megasas_instance *instance)
3440 {
3441 struct megasas_cmd *cmd;
3442 struct list_head clist_local;
3443 union megasas_evt_class_locale class_locale;
3444 unsigned long flags;
3445 u32 seq_num;
3446
3447 INIT_LIST_HEAD(&clist_local);
3448 spin_lock_irqsave(&instance->hba_lock, flags);
3449 list_splice_init(&instance->internal_reset_pending_q, &clist_local);
3450 spin_unlock_irqrestore(&instance->hba_lock, flags);
3451
3452 while (!list_empty(&clist_local)) {
3453 cmd = list_entry((&clist_local)->next,
3454 struct megasas_cmd, list);
3455 list_del_init(&cmd->list);
3456
3457 if (cmd->sync_cmd || cmd->scmd) {
3458 dev_notice(&instance->pdev->dev, "command %p, %p:%d"
3459 "detected to be pending while HBA reset\n",
3460 cmd, cmd->scmd, cmd->sync_cmd);
3461
3462 cmd->retry_for_fw_reset++;
3463
3464 if (cmd->retry_for_fw_reset == 3) {
3465 dev_notice(&instance->pdev->dev, "cmd %p, %p:%d"
3466 "was tried multiple times during reset."
3467 "Shutting down the HBA\n",
3468 cmd, cmd->scmd, cmd->sync_cmd);
3469 instance->instancet->disable_intr(instance);
3470 atomic_set(&instance->fw_reset_no_pci_access, 1);
3471 megaraid_sas_kill_hba(instance);
3472 return;
3473 }
3474 }
3475
3476 if (cmd->sync_cmd == 1) {
3477 if (cmd->scmd) {
3478 dev_notice(&instance->pdev->dev, "unexpected"
3479 "cmd attached to internal command!\n");
3480 }
3481 dev_notice(&instance->pdev->dev, "%p synchronous cmd"
3482 "on the internal reset queue,"
3483 "issue it again.\n", cmd);
3484 cmd->cmd_status_drv = MFI_STAT_INVALID_STATUS;
3485 instance->instancet->fire_cmd(instance,
3486 cmd->frame_phys_addr,
3487 0, instance->reg_set);
3488 } else if (cmd->scmd) {
3489 dev_notice(&instance->pdev->dev, "%p scsi cmd [%02x]"
3490 "detected on the internal queue, issue again.\n",
3491 cmd, cmd->scmd->cmnd[0]);
3492
3493 atomic_inc(&instance->fw_outstanding);
3494 instance->instancet->fire_cmd(instance,
3495 cmd->frame_phys_addr,
3496 cmd->frame_count-1, instance->reg_set);
3497 } else {
3498 dev_notice(&instance->pdev->dev, "%p unexpected cmd on the"
3499 "internal reset defer list while re-issue!!\n",
3500 cmd);
3501 }
3502 }
3503
3504 if (instance->aen_cmd) {
3505 dev_notice(&instance->pdev->dev, "aen_cmd in def process\n");
3506 megasas_return_cmd(instance, instance->aen_cmd);
3507
3508 instance->aen_cmd = NULL;
3509 }
3510
3511 /*
3512 * Initiate AEN (Asynchronous Event Notification)
3513 */
3514 seq_num = instance->last_seq_num;
3515 class_locale.members.reserved = 0;
3516 class_locale.members.locale = MR_EVT_LOCALE_ALL;
3517 class_locale.members.class = MR_EVT_CLASS_DEBUG;
3518
3519 megasas_register_aen(instance, seq_num, class_locale.word);
3520 }
3521
3522 /**
3523 * Move the internal reset pending commands to a deferred queue.
3524 *
3525 * We move the commands pending at internal reset time to a
3526 * pending queue. This queue would be flushed after successful
3527 * completion of the internal reset sequence. if the internal reset
3528 * did not complete in time, the kernel reset handler would flush
3529 * these commands.
3530 **/
3531 static void
3532 megasas_internal_reset_defer_cmds(struct megasas_instance *instance)
3533 {
3534 struct megasas_cmd *cmd;
3535 int i;
3536 u16 max_cmd = instance->max_fw_cmds;
3537 u32 defer_index;
3538 unsigned long flags;
3539
3540 defer_index = 0;
3541 spin_lock_irqsave(&instance->mfi_pool_lock, flags);
3542 for (i = 0; i < max_cmd; i++) {
3543 cmd = instance->cmd_list[i];
3544 if (cmd->sync_cmd == 1 || cmd->scmd) {
3545 dev_notice(&instance->pdev->dev, "moving cmd[%d]:%p:%d:%p"
3546 "on the defer queue as internal\n",
3547 defer_index, cmd, cmd->sync_cmd, cmd->scmd);
3548
3549 if (!list_empty(&cmd->list)) {
3550 dev_notice(&instance->pdev->dev, "ERROR while"
3551 " moving this cmd:%p, %d %p, it was"
3552 "discovered on some list?\n",
3553 cmd, cmd->sync_cmd, cmd->scmd);
3554
3555 list_del_init(&cmd->list);
3556 }
3557 defer_index++;
3558 list_add_tail(&cmd->list,
3559 &instance->internal_reset_pending_q);
3560 }
3561 }
3562 spin_unlock_irqrestore(&instance->mfi_pool_lock, flags);
3563 }
3564
3565
3566 static void
3567 process_fw_state_change_wq(struct work_struct *work)
3568 {
3569 struct megasas_instance *instance =
3570 container_of(work, struct megasas_instance, work_init);
3571 u32 wait;
3572 unsigned long flags;
3573
3574 if (atomic_read(&instance->adprecovery) != MEGASAS_ADPRESET_SM_INFAULT) {
3575 dev_notice(&instance->pdev->dev, "error, recovery st %x\n",
3576 atomic_read(&instance->adprecovery));
3577 return ;
3578 }
3579
3580 if (atomic_read(&instance->adprecovery) == MEGASAS_ADPRESET_SM_INFAULT) {
3581 dev_notice(&instance->pdev->dev, "FW detected to be in fault"
3582 "state, restarting it...\n");
3583
3584 instance->instancet->disable_intr(instance);
3585 atomic_set(&instance->fw_outstanding, 0);
3586
3587 atomic_set(&instance->fw_reset_no_pci_access, 1);
3588 instance->instancet->adp_reset(instance, instance->reg_set);
3589 atomic_set(&instance->fw_reset_no_pci_access, 0);
3590
3591 dev_notice(&instance->pdev->dev, "FW restarted successfully,"
3592 "initiating next stage...\n");
3593
3594 dev_notice(&instance->pdev->dev, "HBA recovery state machine,"
3595 "state 2 starting...\n");
3596
3597 /* waiting for about 20 second before start the second init */
3598 for (wait = 0; wait < 30; wait++) {
3599 msleep(1000);
3600 }
3601
3602 if (megasas_transition_to_ready(instance, 1)) {
3603 dev_notice(&instance->pdev->dev, "adapter not ready\n");
3604
3605 atomic_set(&instance->fw_reset_no_pci_access, 1);
3606 megaraid_sas_kill_hba(instance);
3607 return ;
3608 }
3609
3610 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS1064R) ||
3611 (instance->pdev->device == PCI_DEVICE_ID_DELL_PERC5) ||
3612 (instance->pdev->device == PCI_DEVICE_ID_LSI_VERDE_ZCR)
3613 ) {
3614 *instance->consumer = *instance->producer;
3615 } else {
3616 *instance->consumer = 0;
3617 *instance->producer = 0;
3618 }
3619
3620 megasas_issue_init_mfi(instance);
3621
3622 spin_lock_irqsave(&instance->hba_lock, flags);
3623 atomic_set(&instance->adprecovery, MEGASAS_HBA_OPERATIONAL);
3624 spin_unlock_irqrestore(&instance->hba_lock, flags);
3625 instance->instancet->enable_intr(instance);
3626
3627 megasas_issue_pending_cmds_again(instance);
3628 instance->issuepend_done = 1;
3629 }
3630 }
3631
3632 /**
3633 * megasas_deplete_reply_queue - Processes all completed commands
3634 * @instance: Adapter soft state
3635 * @alt_status: Alternate status to be returned to
3636 * SCSI mid-layer instead of the status
3637 * returned by the FW
3638 * Note: this must be called with hba lock held
3639 */
3640 static int
3641 megasas_deplete_reply_queue(struct megasas_instance *instance,
3642 u8 alt_status)
3643 {
3644 u32 mfiStatus;
3645 u32 fw_state;
3646
3647 if ((mfiStatus = instance->instancet->check_reset(instance,
3648 instance->reg_set)) == 1) {
3649 return IRQ_HANDLED;
3650 }
3651
3652 if ((mfiStatus = instance->instancet->clear_intr(
3653 instance->reg_set)
3654 ) == 0) {
3655 /* Hardware may not set outbound_intr_status in MSI-X mode */
3656 if (!instance->msix_vectors)
3657 return IRQ_NONE;
3658 }
3659
3660 instance->mfiStatus = mfiStatus;
3661
3662 if ((mfiStatus & MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE)) {
3663 fw_state = instance->instancet->read_fw_status_reg(
3664 instance->reg_set) & MFI_STATE_MASK;
3665
3666 if (fw_state != MFI_STATE_FAULT) {
3667 dev_notice(&instance->pdev->dev, "fw state:%x\n",
3668 fw_state);
3669 }
3670
3671 if ((fw_state == MFI_STATE_FAULT) &&
3672 (instance->disableOnlineCtrlReset == 0)) {
3673 dev_notice(&instance->pdev->dev, "wait adp restart\n");
3674
3675 if ((instance->pdev->device ==
3676 PCI_DEVICE_ID_LSI_SAS1064R) ||
3677 (instance->pdev->device ==
3678 PCI_DEVICE_ID_DELL_PERC5) ||
3679 (instance->pdev->device ==
3680 PCI_DEVICE_ID_LSI_VERDE_ZCR)) {
3681
3682 *instance->consumer =
3683 cpu_to_le32(MEGASAS_ADPRESET_INPROG_SIGN);
3684 }
3685
3686
3687 instance->instancet->disable_intr(instance);
3688 atomic_set(&instance->adprecovery, MEGASAS_ADPRESET_SM_INFAULT);
3689 instance->issuepend_done = 0;
3690
3691 atomic_set(&instance->fw_outstanding, 0);
3692 megasas_internal_reset_defer_cmds(instance);
3693
3694 dev_notice(&instance->pdev->dev, "fwState=%x, stage:%d\n",
3695 fw_state, atomic_read(&instance->adprecovery));
3696
3697 schedule_work(&instance->work_init);
3698 return IRQ_HANDLED;
3699
3700 } else {
3701 dev_notice(&instance->pdev->dev, "fwstate:%x, dis_OCR=%x\n",
3702 fw_state, instance->disableOnlineCtrlReset);
3703 }
3704 }
3705
3706 tasklet_schedule(&instance->isr_tasklet);
3707 return IRQ_HANDLED;
3708 }
3709 /**
3710 * megasas_isr - isr entry point
3711 */
3712 static irqreturn_t megasas_isr(int irq, void *devp)
3713 {
3714 struct megasas_irq_context *irq_context = devp;
3715 struct megasas_instance *instance = irq_context->instance;
3716 unsigned long flags;
3717 irqreturn_t rc;
3718
3719 if (atomic_read(&instance->fw_reset_no_pci_access))
3720 return IRQ_HANDLED;
3721
3722 spin_lock_irqsave(&instance->hba_lock, flags);
3723 rc = megasas_deplete_reply_queue(instance, DID_OK);
3724 spin_unlock_irqrestore(&instance->hba_lock, flags);
3725
3726 return rc;
3727 }
3728
3729 /**
3730 * megasas_transition_to_ready - Move the FW to READY state
3731 * @instance: Adapter soft state
3732 *
3733 * During the initialization, FW passes can potentially be in any one of
3734 * several possible states. If the FW in operational, waiting-for-handshake
3735 * states, driver must take steps to bring it to ready state. Otherwise, it
3736 * has to wait for the ready state.
3737 */
3738 int
3739 megasas_transition_to_ready(struct megasas_instance *instance, int ocr)
3740 {
3741 int i;
3742 u8 max_wait;
3743 u32 fw_state;
3744 u32 cur_state;
3745 u32 abs_state, curr_abs_state;
3746
3747 abs_state = instance->instancet->read_fw_status_reg(instance->reg_set);
3748 fw_state = abs_state & MFI_STATE_MASK;
3749
3750 if (fw_state != MFI_STATE_READY)
3751 dev_info(&instance->pdev->dev, "Waiting for FW to come to ready"
3752 " state\n");
3753
3754 while (fw_state != MFI_STATE_READY) {
3755
3756 switch (fw_state) {
3757
3758 case MFI_STATE_FAULT:
3759 dev_printk(KERN_DEBUG, &instance->pdev->dev, "FW in FAULT state!!\n");
3760 if (ocr) {
3761 max_wait = MEGASAS_RESET_WAIT_TIME;
3762 cur_state = MFI_STATE_FAULT;
3763 break;
3764 } else
3765 return -ENODEV;
3766
3767 case MFI_STATE_WAIT_HANDSHAKE:
3768 /*
3769 * Set the CLR bit in inbound doorbell
3770 */
3771 if ((instance->pdev->device ==
3772 PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
3773 (instance->pdev->device ==
3774 PCI_DEVICE_ID_LSI_SAS0071SKINNY) ||
3775 (instance->adapter_type != MFI_SERIES))
3776 writel(
3777 MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG,
3778 &instance->reg_set->doorbell);
3779 else
3780 writel(
3781 MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG,
3782 &instance->reg_set->inbound_doorbell);
3783
3784 max_wait = MEGASAS_RESET_WAIT_TIME;
3785 cur_state = MFI_STATE_WAIT_HANDSHAKE;
3786 break;
3787
3788 case MFI_STATE_BOOT_MESSAGE_PENDING:
3789 if ((instance->pdev->device ==
3790 PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
3791 (instance->pdev->device ==
3792 PCI_DEVICE_ID_LSI_SAS0071SKINNY) ||
3793 (instance->adapter_type != MFI_SERIES))
3794 writel(MFI_INIT_HOTPLUG,
3795 &instance->reg_set->doorbell);
3796 else
3797 writel(MFI_INIT_HOTPLUG,
3798 &instance->reg_set->inbound_doorbell);
3799
3800 max_wait = MEGASAS_RESET_WAIT_TIME;
3801 cur_state = MFI_STATE_BOOT_MESSAGE_PENDING;
3802 break;
3803
3804 case MFI_STATE_OPERATIONAL:
3805 /*
3806 * Bring it to READY state; assuming max wait 10 secs
3807 */
3808 instance->instancet->disable_intr(instance);
3809 if ((instance->pdev->device ==
3810 PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
3811 (instance->pdev->device ==
3812 PCI_DEVICE_ID_LSI_SAS0071SKINNY) ||
3813 (instance->adapter_type != MFI_SERIES)) {
3814 writel(MFI_RESET_FLAGS,
3815 &instance->reg_set->doorbell);
3816
3817 if (instance->adapter_type != MFI_SERIES) {
3818 for (i = 0; i < (10 * 1000); i += 20) {
3819 if (readl(
3820 &instance->
3821 reg_set->
3822 doorbell) & 1)
3823 msleep(20);
3824 else
3825 break;
3826 }
3827 }
3828 } else
3829 writel(MFI_RESET_FLAGS,
3830 &instance->reg_set->inbound_doorbell);
3831
3832 max_wait = MEGASAS_RESET_WAIT_TIME;
3833 cur_state = MFI_STATE_OPERATIONAL;
3834 break;
3835
3836 case MFI_STATE_UNDEFINED:
3837 /*
3838 * This state should not last for more than 2 seconds
3839 */
3840 max_wait = MEGASAS_RESET_WAIT_TIME;
3841 cur_state = MFI_STATE_UNDEFINED;
3842 break;
3843
3844 case MFI_STATE_BB_INIT:
3845 max_wait = MEGASAS_RESET_WAIT_TIME;
3846 cur_state = MFI_STATE_BB_INIT;
3847 break;
3848
3849 case MFI_STATE_FW_INIT:
3850 max_wait = MEGASAS_RESET_WAIT_TIME;
3851 cur_state = MFI_STATE_FW_INIT;
3852 break;
3853
3854 case MFI_STATE_FW_INIT_2:
3855 max_wait = MEGASAS_RESET_WAIT_TIME;
3856 cur_state = MFI_STATE_FW_INIT_2;
3857 break;
3858
3859 case MFI_STATE_DEVICE_SCAN:
3860 max_wait = MEGASAS_RESET_WAIT_TIME;
3861 cur_state = MFI_STATE_DEVICE_SCAN;
3862 break;
3863
3864 case MFI_STATE_FLUSH_CACHE:
3865 max_wait = MEGASAS_RESET_WAIT_TIME;
3866 cur_state = MFI_STATE_FLUSH_CACHE;
3867 break;
3868
3869 default:
3870 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Unknown state 0x%x\n",
3871 fw_state);
3872 return -ENODEV;
3873 }
3874
3875 /*
3876 * The cur_state should not last for more than max_wait secs
3877 */
3878 for (i = 0; i < (max_wait * 1000); i++) {
3879 curr_abs_state = instance->instancet->
3880 read_fw_status_reg(instance->reg_set);
3881
3882 if (abs_state == curr_abs_state) {
3883 msleep(1);
3884 } else
3885 break;
3886 }
3887
3888 /*
3889 * Return error if fw_state hasn't changed after max_wait
3890 */
3891 if (curr_abs_state == abs_state) {
3892 dev_printk(KERN_DEBUG, &instance->pdev->dev, "FW state [%d] hasn't changed "
3893 "in %d secs\n", fw_state, max_wait);
3894 return -ENODEV;
3895 }
3896
3897 abs_state = curr_abs_state;
3898 fw_state = curr_abs_state & MFI_STATE_MASK;
3899 }
3900 dev_info(&instance->pdev->dev, "FW now in Ready state\n");
3901
3902 return 0;
3903 }
3904
3905 /**
3906 * megasas_teardown_frame_pool - Destroy the cmd frame DMA pool
3907 * @instance: Adapter soft state
3908 */
3909 static void megasas_teardown_frame_pool(struct megasas_instance *instance)
3910 {
3911 int i;
3912 u16 max_cmd = instance->max_mfi_cmds;
3913 struct megasas_cmd *cmd;
3914
3915 if (!instance->frame_dma_pool)
3916 return;
3917
3918 /*
3919 * Return all frames to pool
3920 */
3921 for (i = 0; i < max_cmd; i++) {
3922
3923 cmd = instance->cmd_list[i];
3924
3925 if (cmd->frame)
3926 dma_pool_free(instance->frame_dma_pool, cmd->frame,
3927 cmd->frame_phys_addr);
3928
3929 if (cmd->sense)
3930 dma_pool_free(instance->sense_dma_pool, cmd->sense,
3931 cmd->sense_phys_addr);
3932 }
3933
3934 /*
3935 * Now destroy the pool itself
3936 */
3937 dma_pool_destroy(instance->frame_dma_pool);
3938 dma_pool_destroy(instance->sense_dma_pool);
3939
3940 instance->frame_dma_pool = NULL;
3941 instance->sense_dma_pool = NULL;
3942 }
3943
3944 /**
3945 * megasas_create_frame_pool - Creates DMA pool for cmd frames
3946 * @instance: Adapter soft state
3947 *
3948 * Each command packet has an embedded DMA memory buffer that is used for
3949 * filling MFI frame and the SG list that immediately follows the frame. This
3950 * function creates those DMA memory buffers for each command packet by using
3951 * PCI pool facility.
3952 */
3953 static int megasas_create_frame_pool(struct megasas_instance *instance)
3954 {
3955 int i;
3956 u16 max_cmd;
3957 u32 sge_sz;
3958 u32 frame_count;
3959 struct megasas_cmd *cmd;
3960
3961 max_cmd = instance->max_mfi_cmds;
3962
3963 /*
3964 * Size of our frame is 64 bytes for MFI frame, followed by max SG
3965 * elements and finally SCSI_SENSE_BUFFERSIZE bytes for sense buffer
3966 */
3967 sge_sz = (IS_DMA64) ? sizeof(struct megasas_sge64) :
3968 sizeof(struct megasas_sge32);
3969
3970 if (instance->flag_ieee)
3971 sge_sz = sizeof(struct megasas_sge_skinny);
3972
3973 /*
3974 * For MFI controllers.
3975 * max_num_sge = 60
3976 * max_sge_sz = 16 byte (sizeof megasas_sge_skinny)
3977 * Total 960 byte (15 MFI frame of 64 byte)
3978 *
3979 * Fusion adapter require only 3 extra frame.
3980 * max_num_sge = 16 (defined as MAX_IOCTL_SGE)
3981 * max_sge_sz = 12 byte (sizeof megasas_sge64)
3982 * Total 192 byte (3 MFI frame of 64 byte)
3983 */
3984 frame_count = (instance->adapter_type == MFI_SERIES) ?
3985 (15 + 1) : (3 + 1);
3986 instance->mfi_frame_size = MEGAMFI_FRAME_SIZE * frame_count;
3987 /*
3988 * Use DMA pool facility provided by PCI layer
3989 */
3990 instance->frame_dma_pool = dma_pool_create("megasas frame pool",
3991 &instance->pdev->dev,
3992 instance->mfi_frame_size, 256, 0);
3993
3994 if (!instance->frame_dma_pool) {
3995 dev_printk(KERN_DEBUG, &instance->pdev->dev, "failed to setup frame pool\n");
3996 return -ENOMEM;
3997 }
3998
3999 instance->sense_dma_pool = dma_pool_create("megasas sense pool",
4000 &instance->pdev->dev, 128,
4001 4, 0);
4002
4003 if (!instance->sense_dma_pool) {
4004 dev_printk(KERN_DEBUG, &instance->pdev->dev, "failed to setup sense pool\n");
4005
4006 dma_pool_destroy(instance->frame_dma_pool);
4007 instance->frame_dma_pool = NULL;
4008
4009 return -ENOMEM;
4010 }
4011
4012 /*
4013 * Allocate and attach a frame to each of the commands in cmd_list.
4014 * By making cmd->index as the context instead of the &cmd, we can
4015 * always use 32bit context regardless of the architecture
4016 */
4017 for (i = 0; i < max_cmd; i++) {
4018
4019 cmd = instance->cmd_list[i];
4020
4021 cmd->frame = dma_pool_zalloc(instance->frame_dma_pool,
4022 GFP_KERNEL, &cmd->frame_phys_addr);
4023
4024 cmd->sense = dma_pool_alloc(instance->sense_dma_pool,
4025 GFP_KERNEL, &cmd->sense_phys_addr);
4026
4027 /*
4028 * megasas_teardown_frame_pool() takes care of freeing
4029 * whatever has been allocated
4030 */
4031 if (!cmd->frame || !cmd->sense) {
4032 dev_printk(KERN_DEBUG, &instance->pdev->dev, "dma_pool_alloc failed\n");
4033 megasas_teardown_frame_pool(instance);
4034 return -ENOMEM;
4035 }
4036
4037 cmd->frame->io.context = cpu_to_le32(cmd->index);
4038 cmd->frame->io.pad_0 = 0;
4039 if ((instance->adapter_type == MFI_SERIES) && reset_devices)
4040 cmd->frame->hdr.cmd = MFI_CMD_INVALID;
4041 }
4042
4043 return 0;
4044 }
4045
4046 /**
4047 * megasas_free_cmds - Free all the cmds in the free cmd pool
4048 * @instance: Adapter soft state
4049 */
4050 void megasas_free_cmds(struct megasas_instance *instance)
4051 {
4052 int i;
4053
4054 /* First free the MFI frame pool */
4055 megasas_teardown_frame_pool(instance);
4056
4057 /* Free all the commands in the cmd_list */
4058 for (i = 0; i < instance->max_mfi_cmds; i++)
4059
4060 kfree(instance->cmd_list[i]);
4061
4062 /* Free the cmd_list buffer itself */
4063 kfree(instance->cmd_list);
4064 instance->cmd_list = NULL;
4065
4066 INIT_LIST_HEAD(&instance->cmd_pool);
4067 }
4068
4069 /**
4070 * megasas_alloc_cmds - Allocates the command packets
4071 * @instance: Adapter soft state
4072 *
4073 * Each command that is issued to the FW, whether IO commands from the OS or
4074 * internal commands like IOCTLs, are wrapped in local data structure called
4075 * megasas_cmd. The frame embedded in this megasas_cmd is actually issued to
4076 * the FW.
4077 *
4078 * Each frame has a 32-bit field called context (tag). This context is used
4079 * to get back the megasas_cmd from the frame when a frame gets completed in
4080 * the ISR. Typically the address of the megasas_cmd itself would be used as
4081 * the context. But we wanted to keep the differences between 32 and 64 bit
4082 * systems to the mininum. We always use 32 bit integers for the context. In
4083 * this driver, the 32 bit values are the indices into an array cmd_list.
4084 * This array is used only to look up the megasas_cmd given the context. The
4085 * free commands themselves are maintained in a linked list called cmd_pool.
4086 */
4087 int megasas_alloc_cmds(struct megasas_instance *instance)
4088 {
4089 int i;
4090 int j;
4091 u16 max_cmd;
4092 struct megasas_cmd *cmd;
4093
4094 max_cmd = instance->max_mfi_cmds;
4095
4096 /*
4097 * instance->cmd_list is an array of struct megasas_cmd pointers.
4098 * Allocate the dynamic array first and then allocate individual
4099 * commands.
4100 */
4101 instance->cmd_list = kcalloc(max_cmd, sizeof(struct megasas_cmd*), GFP_KERNEL);
4102
4103 if (!instance->cmd_list) {
4104 dev_printk(KERN_DEBUG, &instance->pdev->dev, "out of memory\n");
4105 return -ENOMEM;
4106 }
4107
4108 memset(instance->cmd_list, 0, sizeof(struct megasas_cmd *) *max_cmd);
4109
4110 for (i = 0; i < max_cmd; i++) {
4111 instance->cmd_list[i] = kmalloc(sizeof(struct megasas_cmd),
4112 GFP_KERNEL);
4113
4114 if (!instance->cmd_list[i]) {
4115
4116 for (j = 0; j < i; j++)
4117 kfree(instance->cmd_list[j]);
4118
4119 kfree(instance->cmd_list);
4120 instance->cmd_list = NULL;
4121
4122 return -ENOMEM;
4123 }
4124 }
4125
4126 for (i = 0; i < max_cmd; i++) {
4127 cmd = instance->cmd_list[i];
4128 memset(cmd, 0, sizeof(struct megasas_cmd));
4129 cmd->index = i;
4130 cmd->scmd = NULL;
4131 cmd->instance = instance;
4132
4133 list_add_tail(&cmd->list, &instance->cmd_pool);
4134 }
4135
4136 /*
4137 * Create a frame pool and assign one frame to each cmd
4138 */
4139 if (megasas_create_frame_pool(instance)) {
4140 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Error creating frame DMA pool\n");
4141 megasas_free_cmds(instance);
4142 }
4143
4144 return 0;
4145 }
4146
4147 /*
4148 * dcmd_timeout_ocr_possible - Check if OCR is possible based on Driver/FW state.
4149 * @instance: Adapter soft state
4150 *
4151 * Return 0 for only Fusion adapter, if driver load/unload is not in progress
4152 * or FW is not under OCR.
4153 */
4154 inline int
4155 dcmd_timeout_ocr_possible(struct megasas_instance *instance) {
4156
4157 if (instance->adapter_type == MFI_SERIES)
4158 return KILL_ADAPTER;
4159 else if (instance->unload ||
4160 test_bit(MEGASAS_FUSION_IN_RESET, &instance->reset_flags))
4161 return IGNORE_TIMEOUT;
4162 else
4163 return INITIATE_OCR;
4164 }
4165
4166 static void
4167 megasas_get_pd_info(struct megasas_instance *instance, struct scsi_device *sdev)
4168 {
4169 int ret;
4170 struct megasas_cmd *cmd;
4171 struct megasas_dcmd_frame *dcmd;
4172
4173 struct MR_PRIV_DEVICE *mr_device_priv_data;
4174 u16 device_id = 0;
4175
4176 device_id = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + sdev->id;
4177 cmd = megasas_get_cmd(instance);
4178
4179 if (!cmd) {
4180 dev_err(&instance->pdev->dev, "Failed to get cmd %s\n", __func__);
4181 return;
4182 }
4183
4184 dcmd = &cmd->frame->dcmd;
4185
4186 memset(instance->pd_info, 0, sizeof(*instance->pd_info));
4187 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
4188
4189 dcmd->mbox.s[0] = cpu_to_le16(device_id);
4190 dcmd->cmd = MFI_CMD_DCMD;
4191 dcmd->cmd_status = 0xFF;
4192 dcmd->sge_count = 1;
4193 dcmd->flags = MFI_FRAME_DIR_READ;
4194 dcmd->timeout = 0;
4195 dcmd->pad_0 = 0;
4196 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_PD_INFO));
4197 dcmd->opcode = cpu_to_le32(MR_DCMD_PD_GET_INFO);
4198
4199 megasas_set_dma_settings(instance, dcmd, instance->pd_info_h,
4200 sizeof(struct MR_PD_INFO));
4201
4202 if ((instance->adapter_type != MFI_SERIES) &&
4203 !instance->mask_interrupts)
4204 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS);
4205 else
4206 ret = megasas_issue_polled(instance, cmd);
4207
4208 switch (ret) {
4209 case DCMD_SUCCESS:
4210 mr_device_priv_data = sdev->hostdata;
4211 le16_to_cpus((u16 *)&instance->pd_info->state.ddf.pdType);
4212 mr_device_priv_data->interface_type =
4213 instance->pd_info->state.ddf.pdType.intf;
4214 break;
4215
4216 case DCMD_TIMEOUT:
4217
4218 switch (dcmd_timeout_ocr_possible(instance)) {
4219 case INITIATE_OCR:
4220 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
4221 megasas_reset_fusion(instance->host,
4222 MFI_IO_TIMEOUT_OCR);
4223 break;
4224 case KILL_ADAPTER:
4225 megaraid_sas_kill_hba(instance);
4226 break;
4227 case IGNORE_TIMEOUT:
4228 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n",
4229 __func__, __LINE__);
4230 break;
4231 }
4232
4233 break;
4234 }
4235
4236 if (ret != DCMD_TIMEOUT)
4237 megasas_return_cmd(instance, cmd);
4238
4239 return;
4240 }
4241 /*
4242 * megasas_get_pd_list_info - Returns FW's pd_list structure
4243 * @instance: Adapter soft state
4244 * @pd_list: pd_list structure
4245 *
4246 * Issues an internal command (DCMD) to get the FW's controller PD
4247 * list structure. This information is mainly used to find out SYSTEM
4248 * supported by the FW.
4249 */
4250 static int
4251 megasas_get_pd_list(struct megasas_instance *instance)
4252 {
4253 int ret = 0, pd_index = 0;
4254 struct megasas_cmd *cmd;
4255 struct megasas_dcmd_frame *dcmd;
4256 struct MR_PD_LIST *ci;
4257 struct MR_PD_ADDRESS *pd_addr;
4258 dma_addr_t ci_h = 0;
4259
4260 if (instance->pd_list_not_supported) {
4261 dev_info(&instance->pdev->dev, "MR_DCMD_PD_LIST_QUERY "
4262 "not supported by firmware\n");
4263 return ret;
4264 }
4265
4266 ci = instance->pd_list_buf;
4267 ci_h = instance->pd_list_buf_h;
4268
4269 cmd = megasas_get_cmd(instance);
4270
4271 if (!cmd) {
4272 dev_printk(KERN_DEBUG, &instance->pdev->dev, "(get_pd_list): Failed to get cmd\n");
4273 return -ENOMEM;
4274 }
4275
4276 dcmd = &cmd->frame->dcmd;
4277
4278 memset(ci, 0, sizeof(*ci));
4279 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
4280
4281 dcmd->mbox.b[0] = MR_PD_QUERY_TYPE_EXPOSED_TO_HOST;
4282 dcmd->mbox.b[1] = 0;
4283 dcmd->cmd = MFI_CMD_DCMD;
4284 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
4285 dcmd->sge_count = 1;
4286 dcmd->flags = MFI_FRAME_DIR_READ;
4287 dcmd->timeout = 0;
4288 dcmd->pad_0 = 0;
4289 dcmd->data_xfer_len = cpu_to_le32(MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST));
4290 dcmd->opcode = cpu_to_le32(MR_DCMD_PD_LIST_QUERY);
4291
4292 megasas_set_dma_settings(instance, dcmd, instance->pd_list_buf_h,
4293 (MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST)));
4294
4295 if ((instance->adapter_type != MFI_SERIES) &&
4296 !instance->mask_interrupts)
4297 ret = megasas_issue_blocked_cmd(instance, cmd,
4298 MFI_IO_TIMEOUT_SECS);
4299 else
4300 ret = megasas_issue_polled(instance, cmd);
4301
4302 switch (ret) {
4303 case DCMD_FAILED:
4304 dev_info(&instance->pdev->dev, "MR_DCMD_PD_LIST_QUERY "
4305 "failed/not supported by firmware\n");
4306
4307 if (instance->adapter_type != MFI_SERIES)
4308 megaraid_sas_kill_hba(instance);
4309 else
4310 instance->pd_list_not_supported = 1;
4311 break;
4312 case DCMD_TIMEOUT:
4313
4314 switch (dcmd_timeout_ocr_possible(instance)) {
4315 case INITIATE_OCR:
4316 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
4317 /*
4318 * DCMD failed from AEN path.
4319 * AEN path already hold reset_mutex to avoid PCI access
4320 * while OCR is in progress.
4321 */
4322 mutex_unlock(&instance->reset_mutex);
4323 megasas_reset_fusion(instance->host,
4324 MFI_IO_TIMEOUT_OCR);
4325 mutex_lock(&instance->reset_mutex);
4326 break;
4327 case KILL_ADAPTER:
4328 megaraid_sas_kill_hba(instance);
4329 break;
4330 case IGNORE_TIMEOUT:
4331 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d \n",
4332 __func__, __LINE__);
4333 break;
4334 }
4335
4336 break;
4337
4338 case DCMD_SUCCESS:
4339 pd_addr = ci->addr;
4340
4341 if ((le32_to_cpu(ci->count) >
4342 (MEGASAS_MAX_PD_CHANNELS * MEGASAS_MAX_DEV_PER_CHANNEL)))
4343 break;
4344
4345 memset(instance->local_pd_list, 0,
4346 MEGASAS_MAX_PD * sizeof(struct megasas_pd_list));
4347
4348 for (pd_index = 0; pd_index < le32_to_cpu(ci->count); pd_index++) {
4349 instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].tid =
4350 le16_to_cpu(pd_addr->deviceId);
4351 instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].driveType =
4352 pd_addr->scsiDevType;
4353 instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].driveState =
4354 MR_PD_STATE_SYSTEM;
4355 pd_addr++;
4356 }
4357
4358 memcpy(instance->pd_list, instance->local_pd_list,
4359 sizeof(instance->pd_list));
4360 break;
4361
4362 }
4363
4364 if (ret != DCMD_TIMEOUT)
4365 megasas_return_cmd(instance, cmd);
4366
4367 return ret;
4368 }
4369
4370 /*
4371 * megasas_get_ld_list_info - Returns FW's ld_list structure
4372 * @instance: Adapter soft state
4373 * @ld_list: ld_list structure
4374 *
4375 * Issues an internal command (DCMD) to get the FW's controller PD
4376 * list structure. This information is mainly used to find out SYSTEM
4377 * supported by the FW.
4378 */
4379 static int
4380 megasas_get_ld_list(struct megasas_instance *instance)
4381 {
4382 int ret = 0, ld_index = 0, ids = 0;
4383 struct megasas_cmd *cmd;
4384 struct megasas_dcmd_frame *dcmd;
4385 struct MR_LD_LIST *ci;
4386 dma_addr_t ci_h = 0;
4387 u32 ld_count;
4388
4389 ci = instance->ld_list_buf;
4390 ci_h = instance->ld_list_buf_h;
4391
4392 cmd = megasas_get_cmd(instance);
4393
4394 if (!cmd) {
4395 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_list: Failed to get cmd\n");
4396 return -ENOMEM;
4397 }
4398
4399 dcmd = &cmd->frame->dcmd;
4400
4401 memset(ci, 0, sizeof(*ci));
4402 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
4403
4404 if (instance->supportmax256vd)
4405 dcmd->mbox.b[0] = 1;
4406 dcmd->cmd = MFI_CMD_DCMD;
4407 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
4408 dcmd->sge_count = 1;
4409 dcmd->flags = MFI_FRAME_DIR_READ;
4410 dcmd->timeout = 0;
4411 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_LD_LIST));
4412 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_GET_LIST);
4413 dcmd->pad_0 = 0;
4414
4415 megasas_set_dma_settings(instance, dcmd, ci_h,
4416 sizeof(struct MR_LD_LIST));
4417
4418 if ((instance->adapter_type != MFI_SERIES) &&
4419 !instance->mask_interrupts)
4420 ret = megasas_issue_blocked_cmd(instance, cmd,
4421 MFI_IO_TIMEOUT_SECS);
4422 else
4423 ret = megasas_issue_polled(instance, cmd);
4424
4425 ld_count = le32_to_cpu(ci->ldCount);
4426
4427 switch (ret) {
4428 case DCMD_FAILED:
4429 megaraid_sas_kill_hba(instance);
4430 break;
4431 case DCMD_TIMEOUT:
4432
4433 switch (dcmd_timeout_ocr_possible(instance)) {
4434 case INITIATE_OCR:
4435 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
4436 /*
4437 * DCMD failed from AEN path.
4438 * AEN path already hold reset_mutex to avoid PCI access
4439 * while OCR is in progress.
4440 */
4441 mutex_unlock(&instance->reset_mutex);
4442 megasas_reset_fusion(instance->host,
4443 MFI_IO_TIMEOUT_OCR);
4444 mutex_lock(&instance->reset_mutex);
4445 break;
4446 case KILL_ADAPTER:
4447 megaraid_sas_kill_hba(instance);
4448 break;
4449 case IGNORE_TIMEOUT:
4450 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n",
4451 __func__, __LINE__);
4452 break;
4453 }
4454
4455 break;
4456
4457 case DCMD_SUCCESS:
4458 if (ld_count > instance->fw_supported_vd_count)
4459 break;
4460
4461 memset(instance->ld_ids, 0xff, MAX_LOGICAL_DRIVES_EXT);
4462
4463 for (ld_index = 0; ld_index < ld_count; ld_index++) {
4464 if (ci->ldList[ld_index].state != 0) {
4465 ids = ci->ldList[ld_index].ref.targetId;
4466 instance->ld_ids[ids] = ci->ldList[ld_index].ref.targetId;
4467 }
4468 }
4469
4470 break;
4471 }
4472
4473 if (ret != DCMD_TIMEOUT)
4474 megasas_return_cmd(instance, cmd);
4475
4476 return ret;
4477 }
4478
4479 /**
4480 * megasas_ld_list_query - Returns FW's ld_list structure
4481 * @instance: Adapter soft state
4482 * @ld_list: ld_list structure
4483 *
4484 * Issues an internal command (DCMD) to get the FW's controller PD
4485 * list structure. This information is mainly used to find out SYSTEM
4486 * supported by the FW.
4487 */
4488 static int
4489 megasas_ld_list_query(struct megasas_instance *instance, u8 query_type)
4490 {
4491 int ret = 0, ld_index = 0, ids = 0;
4492 struct megasas_cmd *cmd;
4493 struct megasas_dcmd_frame *dcmd;
4494 struct MR_LD_TARGETID_LIST *ci;
4495 dma_addr_t ci_h = 0;
4496 u32 tgtid_count;
4497
4498 ci = instance->ld_targetid_list_buf;
4499 ci_h = instance->ld_targetid_list_buf_h;
4500
4501 cmd = megasas_get_cmd(instance);
4502
4503 if (!cmd) {
4504 dev_warn(&instance->pdev->dev,
4505 "megasas_ld_list_query: Failed to get cmd\n");
4506 return -ENOMEM;
4507 }
4508
4509 dcmd = &cmd->frame->dcmd;
4510
4511 memset(ci, 0, sizeof(*ci));
4512 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
4513
4514 dcmd->mbox.b[0] = query_type;
4515 if (instance->supportmax256vd)
4516 dcmd->mbox.b[2] = 1;
4517
4518 dcmd->cmd = MFI_CMD_DCMD;
4519 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
4520 dcmd->sge_count = 1;
4521 dcmd->flags = MFI_FRAME_DIR_READ;
4522 dcmd->timeout = 0;
4523 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_LD_TARGETID_LIST));
4524 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_LIST_QUERY);
4525 dcmd->pad_0 = 0;
4526
4527 megasas_set_dma_settings(instance, dcmd, ci_h,
4528 sizeof(struct MR_LD_TARGETID_LIST));
4529
4530 if ((instance->adapter_type != MFI_SERIES) &&
4531 !instance->mask_interrupts)
4532 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS);
4533 else
4534 ret = megasas_issue_polled(instance, cmd);
4535
4536 switch (ret) {
4537 case DCMD_FAILED:
4538 dev_info(&instance->pdev->dev,
4539 "DCMD not supported by firmware - %s %d\n",
4540 __func__, __LINE__);
4541 ret = megasas_get_ld_list(instance);
4542 break;
4543 case DCMD_TIMEOUT:
4544 switch (dcmd_timeout_ocr_possible(instance)) {
4545 case INITIATE_OCR:
4546 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
4547 /*
4548 * DCMD failed from AEN path.
4549 * AEN path already hold reset_mutex to avoid PCI access
4550 * while OCR is in progress.
4551 */
4552 mutex_unlock(&instance->reset_mutex);
4553 megasas_reset_fusion(instance->host,
4554 MFI_IO_TIMEOUT_OCR);
4555 mutex_lock(&instance->reset_mutex);
4556 break;
4557 case KILL_ADAPTER:
4558 megaraid_sas_kill_hba(instance);
4559 break;
4560 case IGNORE_TIMEOUT:
4561 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n",
4562 __func__, __LINE__);
4563 break;
4564 }
4565
4566 break;
4567 case DCMD_SUCCESS:
4568 tgtid_count = le32_to_cpu(ci->count);
4569
4570 if ((tgtid_count > (instance->fw_supported_vd_count)))
4571 break;
4572
4573 memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS);
4574 for (ld_index = 0; ld_index < tgtid_count; ld_index++) {
4575 ids = ci->targetId[ld_index];
4576 instance->ld_ids[ids] = ci->targetId[ld_index];
4577 }
4578
4579 break;
4580 }
4581
4582 if (ret != DCMD_TIMEOUT)
4583 megasas_return_cmd(instance, cmd);
4584
4585 return ret;
4586 }
4587
4588 /*
4589 * megasas_update_ext_vd_details : Update details w.r.t Extended VD
4590 * instance : Controller's instance
4591 */
4592 static void megasas_update_ext_vd_details(struct megasas_instance *instance)
4593 {
4594 struct fusion_context *fusion;
4595 u32 ventura_map_sz = 0;
4596
4597 fusion = instance->ctrl_context;
4598 /* For MFI based controllers return dummy success */
4599 if (!fusion)
4600 return;
4601
4602 instance->supportmax256vd =
4603 instance->ctrl_info_buf->adapterOperations3.supportMaxExtLDs;
4604 /* Below is additional check to address future FW enhancement */
4605 if (instance->ctrl_info_buf->max_lds > 64)
4606 instance->supportmax256vd = 1;
4607
4608 instance->drv_supported_vd_count = MEGASAS_MAX_LD_CHANNELS
4609 * MEGASAS_MAX_DEV_PER_CHANNEL;
4610 instance->drv_supported_pd_count = MEGASAS_MAX_PD_CHANNELS
4611 * MEGASAS_MAX_DEV_PER_CHANNEL;
4612 if (instance->supportmax256vd) {
4613 instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES_EXT;
4614 instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES;
4615 } else {
4616 instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES;
4617 instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES;
4618 }
4619
4620 dev_info(&instance->pdev->dev,
4621 "firmware type\t: %s\n",
4622 instance->supportmax256vd ? "Extended VD(240 VD)firmware" :
4623 "Legacy(64 VD) firmware");
4624
4625 if (instance->max_raid_mapsize) {
4626 ventura_map_sz = instance->max_raid_mapsize *
4627 MR_MIN_MAP_SIZE; /* 64k */
4628 fusion->current_map_sz = ventura_map_sz;
4629 fusion->max_map_sz = ventura_map_sz;
4630 } else {
4631 fusion->old_map_sz = sizeof(struct MR_FW_RAID_MAP) +
4632 (sizeof(struct MR_LD_SPAN_MAP) *
4633 (instance->fw_supported_vd_count - 1));
4634 fusion->new_map_sz = sizeof(struct MR_FW_RAID_MAP_EXT);
4635
4636 fusion->max_map_sz =
4637 max(fusion->old_map_sz, fusion->new_map_sz);
4638
4639 if (instance->supportmax256vd)
4640 fusion->current_map_sz = fusion->new_map_sz;
4641 else
4642 fusion->current_map_sz = fusion->old_map_sz;
4643 }
4644 /* irrespective of FW raid maps, driver raid map is constant */
4645 fusion->drv_map_sz = sizeof(struct MR_DRV_RAID_MAP_ALL);
4646 }
4647
4648 /**
4649 * megasas_get_controller_info - Returns FW's controller structure
4650 * @instance: Adapter soft state
4651 *
4652 * Issues an internal command (DCMD) to get the FW's controller structure.
4653 * This information is mainly used to find out the maximum IO transfer per
4654 * command supported by the FW.
4655 */
4656 int
4657 megasas_get_ctrl_info(struct megasas_instance *instance)
4658 {
4659 int ret = 0;
4660 struct megasas_cmd *cmd;
4661 struct megasas_dcmd_frame *dcmd;
4662 struct megasas_ctrl_info *ci;
4663 dma_addr_t ci_h = 0;
4664
4665 ci = instance->ctrl_info_buf;
4666 ci_h = instance->ctrl_info_buf_h;
4667
4668 cmd = megasas_get_cmd(instance);
4669
4670 if (!cmd) {
4671 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to get a free cmd\n");
4672 return -ENOMEM;
4673 }
4674
4675 dcmd = &cmd->frame->dcmd;
4676
4677 memset(ci, 0, sizeof(*ci));
4678 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
4679
4680 dcmd->cmd = MFI_CMD_DCMD;
4681 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
4682 dcmd->sge_count = 1;
4683 dcmd->flags = MFI_FRAME_DIR_READ;
4684 dcmd->timeout = 0;
4685 dcmd->pad_0 = 0;
4686 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct megasas_ctrl_info));
4687 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_GET_INFO);
4688 dcmd->mbox.b[0] = 1;
4689
4690 megasas_set_dma_settings(instance, dcmd, ci_h,
4691 sizeof(struct megasas_ctrl_info));
4692
4693 if ((instance->adapter_type != MFI_SERIES) &&
4694 !instance->mask_interrupts) {
4695 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS);
4696 } else {
4697 ret = megasas_issue_polled(instance, cmd);
4698 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
4699 }
4700
4701 switch (ret) {
4702 case DCMD_SUCCESS:
4703 /* Save required controller information in
4704 * CPU endianness format.
4705 */
4706 le32_to_cpus((u32 *)&ci->properties.OnOffProperties);
4707 le32_to_cpus((u32 *)&ci->adapterOperations2);
4708 le32_to_cpus((u32 *)&ci->adapterOperations3);
4709 le16_to_cpus((u16 *)&ci->adapter_operations4);
4710
4711 /* Update the latest Ext VD info.
4712 * From Init path, store current firmware details.
4713 * From OCR path, detect any firmware properties changes.
4714 * in case of Firmware upgrade without system reboot.
4715 */
4716 megasas_update_ext_vd_details(instance);
4717 instance->use_seqnum_jbod_fp =
4718 ci->adapterOperations3.useSeqNumJbodFP;
4719 instance->support_morethan256jbod =
4720 ci->adapter_operations4.support_pd_map_target_id;
4721 instance->support_nvme_passthru =
4722 ci->adapter_operations4.support_nvme_passthru;
4723
4724 /*Check whether controller is iMR or MR */
4725 instance->is_imr = (ci->memory_size ? 0 : 1);
4726 dev_info(&instance->pdev->dev,
4727 "controller type\t: %s(%dMB)\n",
4728 instance->is_imr ? "iMR" : "MR",
4729 le16_to_cpu(ci->memory_size));
4730
4731 instance->disableOnlineCtrlReset =
4732 ci->properties.OnOffProperties.disableOnlineCtrlReset;
4733 instance->secure_jbod_support =
4734 ci->adapterOperations3.supportSecurityonJBOD;
4735 dev_info(&instance->pdev->dev, "Online Controller Reset(OCR)\t: %s\n",
4736 instance->disableOnlineCtrlReset ? "Disabled" : "Enabled");
4737 dev_info(&instance->pdev->dev, "Secure JBOD support\t: %s\n",
4738 instance->secure_jbod_support ? "Yes" : "No");
4739 dev_info(&instance->pdev->dev, "NVMe passthru support\t: %s\n",
4740 instance->support_nvme_passthru ? "Yes" : "No");
4741 break;
4742
4743 case DCMD_TIMEOUT:
4744 switch (dcmd_timeout_ocr_possible(instance)) {
4745 case INITIATE_OCR:
4746 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
4747 megasas_reset_fusion(instance->host,
4748 MFI_IO_TIMEOUT_OCR);
4749 break;
4750 case KILL_ADAPTER:
4751 megaraid_sas_kill_hba(instance);
4752 break;
4753 case IGNORE_TIMEOUT:
4754 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n",
4755 __func__, __LINE__);
4756 break;
4757 }
4758 case DCMD_FAILED:
4759 megaraid_sas_kill_hba(instance);
4760 break;
4761
4762 }
4763
4764 megasas_return_cmd(instance, cmd);
4765
4766
4767 return ret;
4768 }
4769
4770 /*
4771 * megasas_set_crash_dump_params - Sends address of crash dump DMA buffer
4772 * to firmware
4773 *
4774 * @instance: Adapter soft state
4775 * @crash_buf_state - tell FW to turn ON/OFF crash dump feature
4776 MR_CRASH_BUF_TURN_OFF = 0
4777 MR_CRASH_BUF_TURN_ON = 1
4778 * @return 0 on success non-zero on failure.
4779 * Issues an internal command (DCMD) to set parameters for crash dump feature.
4780 * Driver will send address of crash dump DMA buffer and set mbox to tell FW
4781 * that driver supports crash dump feature. This DCMD will be sent only if
4782 * crash dump feature is supported by the FW.
4783 *
4784 */
4785 int megasas_set_crash_dump_params(struct megasas_instance *instance,
4786 u8 crash_buf_state)
4787 {
4788 int ret = 0;
4789 struct megasas_cmd *cmd;
4790 struct megasas_dcmd_frame *dcmd;
4791
4792 cmd = megasas_get_cmd(instance);
4793
4794 if (!cmd) {
4795 dev_err(&instance->pdev->dev, "Failed to get a free cmd\n");
4796 return -ENOMEM;
4797 }
4798
4799
4800 dcmd = &cmd->frame->dcmd;
4801
4802 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
4803 dcmd->mbox.b[0] = crash_buf_state;
4804 dcmd->cmd = MFI_CMD_DCMD;
4805 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
4806 dcmd->sge_count = 1;
4807 dcmd->flags = MFI_FRAME_DIR_NONE;
4808 dcmd->timeout = 0;
4809 dcmd->pad_0 = 0;
4810 dcmd->data_xfer_len = cpu_to_le32(CRASH_DMA_BUF_SIZE);
4811 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_SET_CRASH_DUMP_PARAMS);
4812
4813 megasas_set_dma_settings(instance, dcmd, instance->crash_dump_h,
4814 CRASH_DMA_BUF_SIZE);
4815
4816 if ((instance->adapter_type != MFI_SERIES) &&
4817 !instance->mask_interrupts)
4818 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS);
4819 else
4820 ret = megasas_issue_polled(instance, cmd);
4821
4822 if (ret == DCMD_TIMEOUT) {
4823 switch (dcmd_timeout_ocr_possible(instance)) {
4824 case INITIATE_OCR:
4825 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
4826 megasas_reset_fusion(instance->host,
4827 MFI_IO_TIMEOUT_OCR);
4828 break;
4829 case KILL_ADAPTER:
4830 megaraid_sas_kill_hba(instance);
4831 break;
4832 case IGNORE_TIMEOUT:
4833 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n",
4834 __func__, __LINE__);
4835 break;
4836 }
4837 } else
4838 megasas_return_cmd(instance, cmd);
4839
4840 return ret;
4841 }
4842
4843 /**
4844 * megasas_issue_init_mfi - Initializes the FW
4845 * @instance: Adapter soft state
4846 *
4847 * Issues the INIT MFI cmd
4848 */
4849 static int
4850 megasas_issue_init_mfi(struct megasas_instance *instance)
4851 {
4852 __le32 context;
4853 struct megasas_cmd *cmd;
4854 struct megasas_init_frame *init_frame;
4855 struct megasas_init_queue_info *initq_info;
4856 dma_addr_t init_frame_h;
4857 dma_addr_t initq_info_h;
4858
4859 /*
4860 * Prepare a init frame. Note the init frame points to queue info
4861 * structure. Each frame has SGL allocated after first 64 bytes. For
4862 * this frame - since we don't need any SGL - we use SGL's space as
4863 * queue info structure
4864 *
4865 * We will not get a NULL command below. We just created the pool.
4866 */
4867 cmd = megasas_get_cmd(instance);
4868
4869 init_frame = (struct megasas_init_frame *)cmd->frame;
4870 initq_info = (struct megasas_init_queue_info *)
4871 ((unsigned long)init_frame + 64);
4872
4873 init_frame_h = cmd->frame_phys_addr;
4874 initq_info_h = init_frame_h + 64;
4875
4876 context = init_frame->context;
4877 memset(init_frame, 0, MEGAMFI_FRAME_SIZE);
4878 memset(initq_info, 0, sizeof(struct megasas_init_queue_info));
4879 init_frame->context = context;
4880
4881 initq_info->reply_queue_entries = cpu_to_le32(instance->max_fw_cmds + 1);
4882 initq_info->reply_queue_start_phys_addr_lo = cpu_to_le32(instance->reply_queue_h);
4883
4884 initq_info->producer_index_phys_addr_lo = cpu_to_le32(instance->producer_h);
4885 initq_info->consumer_index_phys_addr_lo = cpu_to_le32(instance->consumer_h);
4886
4887 init_frame->cmd = MFI_CMD_INIT;
4888 init_frame->cmd_status = MFI_STAT_INVALID_STATUS;
4889 init_frame->queue_info_new_phys_addr_lo =
4890 cpu_to_le32(lower_32_bits(initq_info_h));
4891 init_frame->queue_info_new_phys_addr_hi =
4892 cpu_to_le32(upper_32_bits(initq_info_h));
4893
4894 init_frame->data_xfer_len = cpu_to_le32(sizeof(struct megasas_init_queue_info));
4895
4896 /*
4897 * disable the intr before firing the init frame to FW
4898 */
4899 instance->instancet->disable_intr(instance);
4900
4901 /*
4902 * Issue the init frame in polled mode
4903 */
4904
4905 if (megasas_issue_polled(instance, cmd)) {
4906 dev_err(&instance->pdev->dev, "Failed to init firmware\n");
4907 megasas_return_cmd(instance, cmd);
4908 goto fail_fw_init;
4909 }
4910
4911 megasas_return_cmd(instance, cmd);
4912
4913 return 0;
4914
4915 fail_fw_init:
4916 return -EINVAL;
4917 }
4918
4919 static u32
4920 megasas_init_adapter_mfi(struct megasas_instance *instance)
4921 {
4922 struct megasas_register_set __iomem *reg_set;
4923 u32 context_sz;
4924 u32 reply_q_sz;
4925
4926 reg_set = instance->reg_set;
4927
4928 /*
4929 * Get various operational parameters from status register
4930 */
4931 instance->max_fw_cmds = instance->instancet->read_fw_status_reg(reg_set) & 0x00FFFF;
4932 /*
4933 * Reduce the max supported cmds by 1. This is to ensure that the
4934 * reply_q_sz (1 more than the max cmd that driver may send)
4935 * does not exceed max cmds that the FW can support
4936 */
4937 instance->max_fw_cmds = instance->max_fw_cmds-1;
4938 instance->max_mfi_cmds = instance->max_fw_cmds;
4939 instance->max_num_sge = (instance->instancet->read_fw_status_reg(reg_set) & 0xFF0000) >>
4940 0x10;
4941 /*
4942 * For MFI skinny adapters, MEGASAS_SKINNY_INT_CMDS commands
4943 * are reserved for IOCTL + driver's internal DCMDs.
4944 */
4945 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
4946 (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY)) {
4947 instance->max_scsi_cmds = (instance->max_fw_cmds -
4948 MEGASAS_SKINNY_INT_CMDS);
4949 sema_init(&instance->ioctl_sem, MEGASAS_SKINNY_INT_CMDS);
4950 } else {
4951 instance->max_scsi_cmds = (instance->max_fw_cmds -
4952 MEGASAS_INT_CMDS);
4953 sema_init(&instance->ioctl_sem, (MEGASAS_MFI_IOCTL_CMDS));
4954 }
4955
4956 instance->cur_can_queue = instance->max_scsi_cmds;
4957 /*
4958 * Create a pool of commands
4959 */
4960 if (megasas_alloc_cmds(instance))
4961 goto fail_alloc_cmds;
4962
4963 /*
4964 * Allocate memory for reply queue. Length of reply queue should
4965 * be _one_ more than the maximum commands handled by the firmware.
4966 *
4967 * Note: When FW completes commands, it places corresponding contex
4968 * values in this circular reply queue. This circular queue is a fairly
4969 * typical producer-consumer queue. FW is the producer (of completed
4970 * commands) and the driver is the consumer.
4971 */
4972 context_sz = sizeof(u32);
4973 reply_q_sz = context_sz * (instance->max_fw_cmds + 1);
4974
4975 instance->reply_queue = pci_alloc_consistent(instance->pdev,
4976 reply_q_sz,
4977 &instance->reply_queue_h);
4978
4979 if (!instance->reply_queue) {
4980 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Out of DMA mem for reply queue\n");
4981 goto fail_reply_queue;
4982 }
4983
4984 if (megasas_issue_init_mfi(instance))
4985 goto fail_fw_init;
4986
4987 if (megasas_get_ctrl_info(instance)) {
4988 dev_err(&instance->pdev->dev, "(%d): Could get controller info "
4989 "Fail from %s %d\n", instance->unique_id,
4990 __func__, __LINE__);
4991 goto fail_fw_init;
4992 }
4993
4994 instance->fw_support_ieee = 0;
4995 instance->fw_support_ieee =
4996 (instance->instancet->read_fw_status_reg(reg_set) &
4997 0x04000000);
4998
4999 dev_notice(&instance->pdev->dev, "megasas_init_mfi: fw_support_ieee=%d",
5000 instance->fw_support_ieee);
5001
5002 if (instance->fw_support_ieee)
5003 instance->flag_ieee = 1;
5004
5005 return 0;
5006
5007 fail_fw_init:
5008
5009 pci_free_consistent(instance->pdev, reply_q_sz,
5010 instance->reply_queue, instance->reply_queue_h);
5011 fail_reply_queue:
5012 megasas_free_cmds(instance);
5013
5014 fail_alloc_cmds:
5015 return 1;
5016 }
5017
5018 /*
5019 * megasas_setup_irqs_ioapic - register legacy interrupts.
5020 * @instance: Adapter soft state
5021 *
5022 * Do not enable interrupt, only setup ISRs.
5023 *
5024 * Return 0 on success.
5025 */
5026 static int
5027 megasas_setup_irqs_ioapic(struct megasas_instance *instance)
5028 {
5029 struct pci_dev *pdev;
5030
5031 pdev = instance->pdev;
5032 instance->irq_context[0].instance = instance;
5033 instance->irq_context[0].MSIxIndex = 0;
5034 if (request_irq(pci_irq_vector(pdev, 0),
5035 instance->instancet->service_isr, IRQF_SHARED,
5036 "megasas", &instance->irq_context[0])) {
5037 dev_err(&instance->pdev->dev,
5038 "Failed to register IRQ from %s %d\n",
5039 __func__, __LINE__);
5040 return -1;
5041 }
5042 return 0;
5043 }
5044
5045 /**
5046 * megasas_setup_irqs_msix - register MSI-x interrupts.
5047 * @instance: Adapter soft state
5048 * @is_probe: Driver probe check
5049 *
5050 * Do not enable interrupt, only setup ISRs.
5051 *
5052 * Return 0 on success.
5053 */
5054 static int
5055 megasas_setup_irqs_msix(struct megasas_instance *instance, u8 is_probe)
5056 {
5057 int i, j;
5058 struct pci_dev *pdev;
5059
5060 pdev = instance->pdev;
5061
5062 /* Try MSI-x */
5063 for (i = 0; i < instance->msix_vectors; i++) {
5064 instance->irq_context[i].instance = instance;
5065 instance->irq_context[i].MSIxIndex = i;
5066 if (request_irq(pci_irq_vector(pdev, i),
5067 instance->instancet->service_isr, 0, "megasas",
5068 &instance->irq_context[i])) {
5069 dev_err(&instance->pdev->dev,
5070 "Failed to register IRQ for vector %d.\n", i);
5071 for (j = 0; j < i; j++)
5072 free_irq(pci_irq_vector(pdev, j),
5073 &instance->irq_context[j]);
5074 /* Retry irq register for IO_APIC*/
5075 instance->msix_vectors = 0;
5076 if (is_probe) {
5077 pci_free_irq_vectors(instance->pdev);
5078 return megasas_setup_irqs_ioapic(instance);
5079 } else {
5080 return -1;
5081 }
5082 }
5083 }
5084 return 0;
5085 }
5086
5087 /*
5088 * megasas_destroy_irqs- unregister interrupts.
5089 * @instance: Adapter soft state
5090 * return: void
5091 */
5092 static void
5093 megasas_destroy_irqs(struct megasas_instance *instance) {
5094
5095 int i;
5096
5097 if (instance->msix_vectors)
5098 for (i = 0; i < instance->msix_vectors; i++) {
5099 free_irq(pci_irq_vector(instance->pdev, i),
5100 &instance->irq_context[i]);
5101 }
5102 else
5103 free_irq(pci_irq_vector(instance->pdev, 0),
5104 &instance->irq_context[0]);
5105 }
5106
5107 /**
5108 * megasas_setup_jbod_map - setup jbod map for FP seq_number.
5109 * @instance: Adapter soft state
5110 * @is_probe: Driver probe check
5111 *
5112 * Return 0 on success.
5113 */
5114 void
5115 megasas_setup_jbod_map(struct megasas_instance *instance)
5116 {
5117 int i;
5118 struct fusion_context *fusion = instance->ctrl_context;
5119 u32 pd_seq_map_sz;
5120
5121 pd_seq_map_sz = sizeof(struct MR_PD_CFG_SEQ_NUM_SYNC) +
5122 (sizeof(struct MR_PD_CFG_SEQ) * (MAX_PHYSICAL_DEVICES - 1));
5123
5124 if (reset_devices || !fusion ||
5125 !instance->ctrl_info_buf->adapterOperations3.useSeqNumJbodFP) {
5126 dev_info(&instance->pdev->dev,
5127 "Jbod map is not supported %s %d\n",
5128 __func__, __LINE__);
5129 instance->use_seqnum_jbod_fp = false;
5130 return;
5131 }
5132
5133 if (fusion->pd_seq_sync[0])
5134 goto skip_alloc;
5135
5136 for (i = 0; i < JBOD_MAPS_COUNT; i++) {
5137 fusion->pd_seq_sync[i] = dma_alloc_coherent
5138 (&instance->pdev->dev, pd_seq_map_sz,
5139 &fusion->pd_seq_phys[i], GFP_KERNEL);
5140 if (!fusion->pd_seq_sync[i]) {
5141 dev_err(&instance->pdev->dev,
5142 "Failed to allocate memory from %s %d\n",
5143 __func__, __LINE__);
5144 if (i == 1) {
5145 dma_free_coherent(&instance->pdev->dev,
5146 pd_seq_map_sz, fusion->pd_seq_sync[0],
5147 fusion->pd_seq_phys[0]);
5148 fusion->pd_seq_sync[0] = NULL;
5149 }
5150 instance->use_seqnum_jbod_fp = false;
5151 return;
5152 }
5153 }
5154
5155 skip_alloc:
5156 if (!megasas_sync_pd_seq_num(instance, false) &&
5157 !megasas_sync_pd_seq_num(instance, true))
5158 instance->use_seqnum_jbod_fp = true;
5159 else
5160 instance->use_seqnum_jbod_fp = false;
5161 }
5162
5163 static void megasas_setup_reply_map(struct megasas_instance *instance)
5164 {
5165 const struct cpumask *mask;
5166 unsigned int queue, cpu;
5167
5168 for (queue = 0; queue < instance->msix_vectors; queue++) {
5169 mask = pci_irq_get_affinity(instance->pdev, queue);
5170 if (!mask)
5171 goto fallback;
5172
5173 for_each_cpu(cpu, mask)
5174 instance->reply_map[cpu] = queue;
5175 }
5176 return;
5177
5178 fallback:
5179 for_each_possible_cpu(cpu)
5180 instance->reply_map[cpu] = cpu % instance->msix_vectors;
5181 }
5182
5183 /**
5184 * megasas_init_fw - Initializes the FW
5185 * @instance: Adapter soft state
5186 *
5187 * This is the main function for initializing firmware
5188 */
5189
5190 static int megasas_init_fw(struct megasas_instance *instance)
5191 {
5192 u32 max_sectors_1;
5193 u32 max_sectors_2, tmp_sectors, msix_enable;
5194 u32 scratch_pad_2, scratch_pad_3, scratch_pad_4;
5195 resource_size_t base_addr;
5196 struct megasas_register_set __iomem *reg_set;
5197 struct megasas_ctrl_info *ctrl_info = NULL;
5198 unsigned long bar_list;
5199 int i, j, loop, fw_msix_count = 0;
5200 struct IOV_111 *iovPtr;
5201 struct fusion_context *fusion;
5202
5203 fusion = instance->ctrl_context;
5204
5205 /* Find first memory bar */
5206 bar_list = pci_select_bars(instance->pdev, IORESOURCE_MEM);
5207 instance->bar = find_first_bit(&bar_list, BITS_PER_LONG);
5208 if (pci_request_selected_regions(instance->pdev, 1<<instance->bar,
5209 "megasas: LSI")) {
5210 dev_printk(KERN_DEBUG, &instance->pdev->dev, "IO memory region busy!\n");
5211 return -EBUSY;
5212 }
5213
5214 base_addr = pci_resource_start(instance->pdev, instance->bar);
5215 instance->reg_set = ioremap_nocache(base_addr, 8192);
5216
5217 if (!instance->reg_set) {
5218 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to map IO mem\n");
5219 goto fail_ioremap;
5220 }
5221
5222 reg_set = instance->reg_set;
5223
5224 if (instance->adapter_type != MFI_SERIES)
5225 instance->instancet = &megasas_instance_template_fusion;
5226 else {
5227 switch (instance->pdev->device) {
5228 case PCI_DEVICE_ID_LSI_SAS1078R:
5229 case PCI_DEVICE_ID_LSI_SAS1078DE:
5230 instance->instancet = &megasas_instance_template_ppc;
5231 break;
5232 case PCI_DEVICE_ID_LSI_SAS1078GEN2:
5233 case PCI_DEVICE_ID_LSI_SAS0079GEN2:
5234 instance->instancet = &megasas_instance_template_gen2;
5235 break;
5236 case PCI_DEVICE_ID_LSI_SAS0073SKINNY:
5237 case PCI_DEVICE_ID_LSI_SAS0071SKINNY:
5238 instance->instancet = &megasas_instance_template_skinny;
5239 break;
5240 case PCI_DEVICE_ID_LSI_SAS1064R:
5241 case PCI_DEVICE_ID_DELL_PERC5:
5242 default:
5243 instance->instancet = &megasas_instance_template_xscale;
5244 instance->pd_list_not_supported = 1;
5245 break;
5246 }
5247 }
5248
5249 if (megasas_transition_to_ready(instance, 0)) {
5250 atomic_set(&instance->fw_reset_no_pci_access, 1);
5251 instance->instancet->adp_reset
5252 (instance, instance->reg_set);
5253 atomic_set(&instance->fw_reset_no_pci_access, 0);
5254 dev_info(&instance->pdev->dev,
5255 "FW restarted successfully from %s!\n",
5256 __func__);
5257
5258 /*waitting for about 30 second before retry*/
5259 ssleep(30);
5260
5261 if (megasas_transition_to_ready(instance, 0))
5262 goto fail_ready_state;
5263 }
5264
5265 megasas_init_ctrl_params(instance);
5266
5267 if (megasas_set_dma_mask(instance))
5268 goto fail_ready_state;
5269
5270 if (megasas_alloc_ctrl_mem(instance))
5271 goto fail_alloc_dma_buf;
5272
5273 if (megasas_alloc_ctrl_dma_buffers(instance))
5274 goto fail_alloc_dma_buf;
5275
5276 fusion = instance->ctrl_context;
5277
5278 if (instance->adapter_type == VENTURA_SERIES) {
5279 scratch_pad_3 =
5280 readl(&instance->reg_set->outbound_scratch_pad_3);
5281 instance->max_raid_mapsize = ((scratch_pad_3 >>
5282 MR_MAX_RAID_MAP_SIZE_OFFSET_SHIFT) &
5283 MR_MAX_RAID_MAP_SIZE_MASK);
5284 }
5285
5286 /* Check if MSI-X is supported while in ready state */
5287 msix_enable = (instance->instancet->read_fw_status_reg(reg_set) &
5288 0x4000000) >> 0x1a;
5289 if (msix_enable && !msix_disable) {
5290 int irq_flags = PCI_IRQ_MSIX;
5291
5292 scratch_pad_2 = readl
5293 (&instance->reg_set->outbound_scratch_pad_2);
5294 /* Check max MSI-X vectors */
5295 if (fusion) {
5296 if (instance->adapter_type == THUNDERBOLT_SERIES) {
5297 /* Thunderbolt Series*/
5298 instance->msix_vectors = (scratch_pad_2
5299 & MR_MAX_REPLY_QUEUES_OFFSET) + 1;
5300 fw_msix_count = instance->msix_vectors;
5301 } else { /* Invader series supports more than 8 MSI-x vectors*/
5302 instance->msix_vectors = ((scratch_pad_2
5303 & MR_MAX_REPLY_QUEUES_EXT_OFFSET)
5304 >> MR_MAX_REPLY_QUEUES_EXT_OFFSET_SHIFT) + 1;
5305 if (instance->msix_vectors > 16)
5306 instance->msix_combined = true;
5307
5308 if (rdpq_enable)
5309 instance->is_rdpq = (scratch_pad_2 & MR_RDPQ_MODE_OFFSET) ?
5310 1 : 0;
5311 fw_msix_count = instance->msix_vectors;
5312 /* Save 1-15 reply post index address to local memory
5313 * Index 0 is already saved from reg offset
5314 * MPI2_REPLY_POST_HOST_INDEX_OFFSET
5315 */
5316 for (loop = 1; loop < MR_MAX_MSIX_REG_ARRAY; loop++) {
5317 instance->reply_post_host_index_addr[loop] =
5318 (u32 __iomem *)
5319 ((u8 __iomem *)instance->reg_set +
5320 MPI2_SUP_REPLY_POST_HOST_INDEX_OFFSET
5321 + (loop * 0x10));
5322 }
5323 }
5324 if (msix_vectors)
5325 instance->msix_vectors = min(msix_vectors,
5326 instance->msix_vectors);
5327 } else /* MFI adapters */
5328 instance->msix_vectors = 1;
5329 /* Don't bother allocating more MSI-X vectors than cpus */
5330 instance->msix_vectors = min(instance->msix_vectors,
5331 (unsigned int)num_online_cpus());
5332 if (smp_affinity_enable)
5333 irq_flags |= PCI_IRQ_AFFINITY;
5334 i = pci_alloc_irq_vectors(instance->pdev, 1,
5335 instance->msix_vectors, irq_flags);
5336 if (i > 0)
5337 instance->msix_vectors = i;
5338 else
5339 instance->msix_vectors = 0;
5340 }
5341 /*
5342 * MSI-X host index 0 is common for all adapter.
5343 * It is used for all MPT based Adapters.
5344 */
5345 if (instance->msix_combined) {
5346 instance->reply_post_host_index_addr[0] =
5347 (u32 *)((u8 *)instance->reg_set +
5348 MPI2_SUP_REPLY_POST_HOST_INDEX_OFFSET);
5349 } else {
5350 instance->reply_post_host_index_addr[0] =
5351 (u32 *)((u8 *)instance->reg_set +
5352 MPI2_REPLY_POST_HOST_INDEX_OFFSET);
5353 }
5354
5355 if (!instance->msix_vectors) {
5356 i = pci_alloc_irq_vectors(instance->pdev, 1, 1, PCI_IRQ_LEGACY);
5357 if (i < 0)
5358 goto fail_setup_irqs;
5359 }
5360
5361 megasas_setup_reply_map(instance);
5362
5363 dev_info(&instance->pdev->dev,
5364 "firmware supports msix\t: (%d)", fw_msix_count);
5365 dev_info(&instance->pdev->dev,
5366 "current msix/online cpus\t: (%d/%d)\n",
5367 instance->msix_vectors, (unsigned int)num_online_cpus());
5368 dev_info(&instance->pdev->dev,
5369 "RDPQ mode\t: (%s)\n", instance->is_rdpq ? "enabled" : "disabled");
5370
5371 tasklet_init(&instance->isr_tasklet, instance->instancet->tasklet,
5372 (unsigned long)instance);
5373
5374 /*
5375 * Below are default value for legacy Firmware.
5376 * non-fusion based controllers
5377 */
5378 instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES;
5379 instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES;
5380 /* Get operational params, sge flags, send init cmd to controller */
5381 if (instance->instancet->init_adapter(instance))
5382 goto fail_init_adapter;
5383
5384 if (instance->adapter_type == VENTURA_SERIES) {
5385 scratch_pad_4 =
5386 readl(&instance->reg_set->outbound_scratch_pad_4);
5387 if ((scratch_pad_4 & MR_NVME_PAGE_SIZE_MASK) >=
5388 MR_DEFAULT_NVME_PAGE_SHIFT)
5389 instance->nvme_page_size =
5390 (1 << (scratch_pad_4 & MR_NVME_PAGE_SIZE_MASK));
5391
5392 dev_info(&instance->pdev->dev,
5393 "NVME page size\t: (%d)\n", instance->nvme_page_size);
5394 }
5395
5396 if (instance->msix_vectors ?
5397 megasas_setup_irqs_msix(instance, 1) :
5398 megasas_setup_irqs_ioapic(instance))
5399 goto fail_init_adapter;
5400
5401 instance->instancet->enable_intr(instance);
5402
5403 dev_info(&instance->pdev->dev, "INIT adapter done\n");
5404
5405 megasas_setup_jbod_map(instance);
5406
5407 /** for passthrough
5408 * the following function will get the PD LIST.
5409 */
5410 memset(instance->pd_list, 0,
5411 (MEGASAS_MAX_PD * sizeof(struct megasas_pd_list)));
5412 if (megasas_get_pd_list(instance) < 0) {
5413 dev_err(&instance->pdev->dev, "failed to get PD list\n");
5414 goto fail_get_ld_pd_list;
5415 }
5416
5417 memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS);
5418
5419 /* stream detection initialization */
5420 if (instance->adapter_type == VENTURA_SERIES) {
5421 fusion->stream_detect_by_ld =
5422 kcalloc(MAX_LOGICAL_DRIVES_EXT,
5423 sizeof(struct LD_STREAM_DETECT *),
5424 GFP_KERNEL);
5425 if (!fusion->stream_detect_by_ld) {
5426 dev_err(&instance->pdev->dev,
5427 "unable to allocate stream detection for pool of LDs\n");
5428 goto fail_get_ld_pd_list;
5429 }
5430 for (i = 0; i < MAX_LOGICAL_DRIVES_EXT; ++i) {
5431 fusion->stream_detect_by_ld[i] =
5432 kzalloc(sizeof(struct LD_STREAM_DETECT),
5433 GFP_KERNEL);
5434 if (!fusion->stream_detect_by_ld[i]) {
5435 dev_err(&instance->pdev->dev,
5436 "unable to allocate stream detect by LD\n ");
5437 for (j = 0; j < i; ++j)
5438 kfree(fusion->stream_detect_by_ld[j]);
5439 kfree(fusion->stream_detect_by_ld);
5440 fusion->stream_detect_by_ld = NULL;
5441 goto fail_get_ld_pd_list;
5442 }
5443 fusion->stream_detect_by_ld[i]->mru_bit_map
5444 = MR_STREAM_BITMAP;
5445 }
5446 }
5447
5448 if (megasas_ld_list_query(instance,
5449 MR_LD_QUERY_TYPE_EXPOSED_TO_HOST))
5450 goto fail_get_ld_pd_list;
5451
5452 /*
5453 * Compute the max allowed sectors per IO: The controller info has two
5454 * limits on max sectors. Driver should use the minimum of these two.
5455 *
5456 * 1 << stripe_sz_ops.min = max sectors per strip
5457 *
5458 * Note that older firmwares ( < FW ver 30) didn't report information
5459 * to calculate max_sectors_1. So the number ended up as zero always.
5460 */
5461 tmp_sectors = 0;
5462 ctrl_info = instance->ctrl_info_buf;
5463
5464 max_sectors_1 = (1 << ctrl_info->stripe_sz_ops.min) *
5465 le16_to_cpu(ctrl_info->max_strips_per_io);
5466 max_sectors_2 = le32_to_cpu(ctrl_info->max_request_size);
5467
5468 tmp_sectors = min_t(u32, max_sectors_1, max_sectors_2);
5469
5470 instance->peerIsPresent = ctrl_info->cluster.peerIsPresent;
5471 instance->passive = ctrl_info->cluster.passive;
5472 memcpy(instance->clusterId, ctrl_info->clusterId, sizeof(instance->clusterId));
5473 instance->UnevenSpanSupport =
5474 ctrl_info->adapterOperations2.supportUnevenSpans;
5475 if (instance->UnevenSpanSupport) {
5476 struct fusion_context *fusion = instance->ctrl_context;
5477 if (MR_ValidateMapInfo(instance, instance->map_id))
5478 fusion->fast_path_io = 1;
5479 else
5480 fusion->fast_path_io = 0;
5481
5482 }
5483 if (ctrl_info->host_interface.SRIOV) {
5484 instance->requestorId = ctrl_info->iov.requestorId;
5485 if (instance->pdev->device == PCI_DEVICE_ID_LSI_PLASMA) {
5486 if (!ctrl_info->adapterOperations2.activePassive)
5487 instance->PlasmaFW111 = 1;
5488
5489 dev_info(&instance->pdev->dev, "SR-IOV: firmware type: %s\n",
5490 instance->PlasmaFW111 ? "1.11" : "new");
5491
5492 if (instance->PlasmaFW111) {
5493 iovPtr = (struct IOV_111 *)
5494 ((unsigned char *)ctrl_info + IOV_111_OFFSET);
5495 instance->requestorId = iovPtr->requestorId;
5496 }
5497 }
5498 dev_info(&instance->pdev->dev, "SRIOV: VF requestorId %d\n",
5499 instance->requestorId);
5500 }
5501
5502 instance->crash_dump_fw_support =
5503 ctrl_info->adapterOperations3.supportCrashDump;
5504 instance->crash_dump_drv_support =
5505 (instance->crash_dump_fw_support &&
5506 instance->crash_dump_buf);
5507 if (instance->crash_dump_drv_support)
5508 megasas_set_crash_dump_params(instance,
5509 MR_CRASH_BUF_TURN_OFF);
5510
5511 else {
5512 if (instance->crash_dump_buf)
5513 pci_free_consistent(instance->pdev,
5514 CRASH_DMA_BUF_SIZE,
5515 instance->crash_dump_buf,
5516 instance->crash_dump_h);
5517 instance->crash_dump_buf = NULL;
5518 }
5519
5520
5521 dev_info(&instance->pdev->dev,
5522 "pci id\t\t: (0x%04x)/(0x%04x)/(0x%04x)/(0x%04x)\n",
5523 le16_to_cpu(ctrl_info->pci.vendor_id),
5524 le16_to_cpu(ctrl_info->pci.device_id),
5525 le16_to_cpu(ctrl_info->pci.sub_vendor_id),
5526 le16_to_cpu(ctrl_info->pci.sub_device_id));
5527 dev_info(&instance->pdev->dev, "unevenspan support : %s\n",
5528 instance->UnevenSpanSupport ? "yes" : "no");
5529 dev_info(&instance->pdev->dev, "firmware crash dump : %s\n",
5530 instance->crash_dump_drv_support ? "yes" : "no");
5531 dev_info(&instance->pdev->dev, "jbod sync map : %s\n",
5532 instance->use_seqnum_jbod_fp ? "yes" : "no");
5533
5534
5535 instance->max_sectors_per_req = instance->max_num_sge *
5536 SGE_BUFFER_SIZE / 512;
5537 if (tmp_sectors && (instance->max_sectors_per_req > tmp_sectors))
5538 instance->max_sectors_per_req = tmp_sectors;
5539
5540 /* Check for valid throttlequeuedepth module parameter */
5541 if (throttlequeuedepth &&
5542 throttlequeuedepth <= instance->max_scsi_cmds)
5543 instance->throttlequeuedepth = throttlequeuedepth;
5544 else
5545 instance->throttlequeuedepth =
5546 MEGASAS_THROTTLE_QUEUE_DEPTH;
5547
5548 if ((resetwaittime < 1) ||
5549 (resetwaittime > MEGASAS_RESET_WAIT_TIME))
5550 resetwaittime = MEGASAS_RESET_WAIT_TIME;
5551
5552 if ((scmd_timeout < 10) || (scmd_timeout > MEGASAS_DEFAULT_CMD_TIMEOUT))
5553 scmd_timeout = MEGASAS_DEFAULT_CMD_TIMEOUT;
5554
5555 /* Launch SR-IOV heartbeat timer */
5556 if (instance->requestorId) {
5557 if (!megasas_sriov_start_heartbeat(instance, 1))
5558 megasas_start_timer(instance);
5559 else
5560 instance->skip_heartbeat_timer_del = 1;
5561 }
5562
5563 return 0;
5564
5565 fail_get_ld_pd_list:
5566 instance->instancet->disable_intr(instance);
5567 fail_init_adapter:
5568 megasas_destroy_irqs(instance);
5569 fail_setup_irqs:
5570 if (instance->msix_vectors)
5571 pci_free_irq_vectors(instance->pdev);
5572 instance->msix_vectors = 0;
5573 fail_alloc_dma_buf:
5574 megasas_free_ctrl_dma_buffers(instance);
5575 megasas_free_ctrl_mem(instance);
5576 fail_ready_state:
5577 iounmap(instance->reg_set);
5578
5579 fail_ioremap:
5580 pci_release_selected_regions(instance->pdev, 1<<instance->bar);
5581
5582 dev_err(&instance->pdev->dev, "Failed from %s %d\n",
5583 __func__, __LINE__);
5584 return -EINVAL;
5585 }
5586
5587 /**
5588 * megasas_release_mfi - Reverses the FW initialization
5589 * @instance: Adapter soft state
5590 */
5591 static void megasas_release_mfi(struct megasas_instance *instance)
5592 {
5593 u32 reply_q_sz = sizeof(u32) *(instance->max_mfi_cmds + 1);
5594
5595 if (instance->reply_queue)
5596 pci_free_consistent(instance->pdev, reply_q_sz,
5597 instance->reply_queue, instance->reply_queue_h);
5598
5599 megasas_free_cmds(instance);
5600
5601 iounmap(instance->reg_set);
5602
5603 pci_release_selected_regions(instance->pdev, 1<<instance->bar);
5604 }
5605
5606 /**
5607 * megasas_get_seq_num - Gets latest event sequence numbers
5608 * @instance: Adapter soft state
5609 * @eli: FW event log sequence numbers information
5610 *
5611 * FW maintains a log of all events in a non-volatile area. Upper layers would
5612 * usually find out the latest sequence number of the events, the seq number at
5613 * the boot etc. They would "read" all the events below the latest seq number
5614 * by issuing a direct fw cmd (DCMD). For the future events (beyond latest seq
5615 * number), they would subsribe to AEN (asynchronous event notification) and
5616 * wait for the events to happen.
5617 */
5618 static int
5619 megasas_get_seq_num(struct megasas_instance *instance,
5620 struct megasas_evt_log_info *eli)
5621 {
5622 struct megasas_cmd *cmd;
5623 struct megasas_dcmd_frame *dcmd;
5624 struct megasas_evt_log_info *el_info;
5625 dma_addr_t el_info_h = 0;
5626 int ret;
5627
5628 cmd = megasas_get_cmd(instance);
5629
5630 if (!cmd) {
5631 return -ENOMEM;
5632 }
5633
5634 dcmd = &cmd->frame->dcmd;
5635 el_info = pci_zalloc_consistent(instance->pdev,
5636 sizeof(struct megasas_evt_log_info),
5637 &el_info_h);
5638
5639 if (!el_info) {
5640 megasas_return_cmd(instance, cmd);
5641 return -ENOMEM;
5642 }
5643
5644 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
5645
5646 dcmd->cmd = MFI_CMD_DCMD;
5647 dcmd->cmd_status = 0x0;
5648 dcmd->sge_count = 1;
5649 dcmd->flags = MFI_FRAME_DIR_READ;
5650 dcmd->timeout = 0;
5651 dcmd->pad_0 = 0;
5652 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct megasas_evt_log_info));
5653 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_EVENT_GET_INFO);
5654
5655 megasas_set_dma_settings(instance, dcmd, el_info_h,
5656 sizeof(struct megasas_evt_log_info));
5657
5658 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS);
5659 if (ret != DCMD_SUCCESS) {
5660 dev_err(&instance->pdev->dev, "Failed from %s %d\n",
5661 __func__, __LINE__);
5662 goto dcmd_failed;
5663 }
5664
5665 /*
5666 * Copy the data back into callers buffer
5667 */
5668 eli->newest_seq_num = el_info->newest_seq_num;
5669 eli->oldest_seq_num = el_info->oldest_seq_num;
5670 eli->clear_seq_num = el_info->clear_seq_num;
5671 eli->shutdown_seq_num = el_info->shutdown_seq_num;
5672 eli->boot_seq_num = el_info->boot_seq_num;
5673
5674 dcmd_failed:
5675 pci_free_consistent(instance->pdev, sizeof(struct megasas_evt_log_info),
5676 el_info, el_info_h);
5677
5678 megasas_return_cmd(instance, cmd);
5679
5680 return ret;
5681 }
5682
5683 /**
5684 * megasas_register_aen - Registers for asynchronous event notification
5685 * @instance: Adapter soft state
5686 * @seq_num: The starting sequence number
5687 * @class_locale: Class of the event
5688 *
5689 * This function subscribes for AEN for events beyond the @seq_num. It requests
5690 * to be notified if and only if the event is of type @class_locale
5691 */
5692 static int
5693 megasas_register_aen(struct megasas_instance *instance, u32 seq_num,
5694 u32 class_locale_word)
5695 {
5696 int ret_val;
5697 struct megasas_cmd *cmd;
5698 struct megasas_dcmd_frame *dcmd;
5699 union megasas_evt_class_locale curr_aen;
5700 union megasas_evt_class_locale prev_aen;
5701
5702 /*
5703 * If there an AEN pending already (aen_cmd), check if the
5704 * class_locale of that pending AEN is inclusive of the new
5705 * AEN request we currently have. If it is, then we don't have
5706 * to do anything. In other words, whichever events the current
5707 * AEN request is subscribing to, have already been subscribed
5708 * to.
5709 *
5710 * If the old_cmd is _not_ inclusive, then we have to abort
5711 * that command, form a class_locale that is superset of both
5712 * old and current and re-issue to the FW
5713 */
5714
5715 curr_aen.word = class_locale_word;
5716
5717 if (instance->aen_cmd) {
5718
5719 prev_aen.word =
5720 le32_to_cpu(instance->aen_cmd->frame->dcmd.mbox.w[1]);
5721
5722 if ((curr_aen.members.class < MFI_EVT_CLASS_DEBUG) ||
5723 (curr_aen.members.class > MFI_EVT_CLASS_DEAD)) {
5724 dev_info(&instance->pdev->dev,
5725 "%s %d out of range class %d send by application\n",
5726 __func__, __LINE__, curr_aen.members.class);
5727 return 0;
5728 }
5729
5730 /*
5731 * A class whose enum value is smaller is inclusive of all
5732 * higher values. If a PROGRESS (= -1) was previously
5733 * registered, then a new registration requests for higher
5734 * classes need not be sent to FW. They are automatically
5735 * included.
5736 *
5737 * Locale numbers don't have such hierarchy. They are bitmap
5738 * values
5739 */
5740 if ((prev_aen.members.class <= curr_aen.members.class) &&
5741 !((prev_aen.members.locale & curr_aen.members.locale) ^
5742 curr_aen.members.locale)) {
5743 /*
5744 * Previously issued event registration includes
5745 * current request. Nothing to do.
5746 */
5747 return 0;
5748 } else {
5749 curr_aen.members.locale |= prev_aen.members.locale;
5750
5751 if (prev_aen.members.class < curr_aen.members.class)
5752 curr_aen.members.class = prev_aen.members.class;
5753
5754 instance->aen_cmd->abort_aen = 1;
5755 ret_val = megasas_issue_blocked_abort_cmd(instance,
5756 instance->
5757 aen_cmd, 30);
5758
5759 if (ret_val) {
5760 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to abort "
5761 "previous AEN command\n");
5762 return ret_val;
5763 }
5764 }
5765 }
5766
5767 cmd = megasas_get_cmd(instance);
5768
5769 if (!cmd)
5770 return -ENOMEM;
5771
5772 dcmd = &cmd->frame->dcmd;
5773
5774 memset(instance->evt_detail, 0, sizeof(struct megasas_evt_detail));
5775
5776 /*
5777 * Prepare DCMD for aen registration
5778 */
5779 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
5780
5781 dcmd->cmd = MFI_CMD_DCMD;
5782 dcmd->cmd_status = 0x0;
5783 dcmd->sge_count = 1;
5784 dcmd->flags = MFI_FRAME_DIR_READ;
5785 dcmd->timeout = 0;
5786 dcmd->pad_0 = 0;
5787 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct megasas_evt_detail));
5788 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_EVENT_WAIT);
5789 dcmd->mbox.w[0] = cpu_to_le32(seq_num);
5790 instance->last_seq_num = seq_num;
5791 dcmd->mbox.w[1] = cpu_to_le32(curr_aen.word);
5792
5793 megasas_set_dma_settings(instance, dcmd, instance->evt_detail_h,
5794 sizeof(struct megasas_evt_detail));
5795
5796 if (instance->aen_cmd != NULL) {
5797 megasas_return_cmd(instance, cmd);
5798 return 0;
5799 }
5800
5801 /*
5802 * Store reference to the cmd used to register for AEN. When an
5803 * application wants us to register for AEN, we have to abort this
5804 * cmd and re-register with a new EVENT LOCALE supplied by that app
5805 */
5806 instance->aen_cmd = cmd;
5807
5808 /*
5809 * Issue the aen registration frame
5810 */
5811 instance->instancet->issue_dcmd(instance, cmd);
5812
5813 return 0;
5814 }
5815
5816 /* megasas_get_target_prop - Send DCMD with below details to firmware.
5817 *
5818 * This DCMD will fetch few properties of LD/system PD defined
5819 * in MR_TARGET_DEV_PROPERTIES. eg. Queue Depth, MDTS value.
5820 *
5821 * DCMD send by drivers whenever new target is added to the OS.
5822 *
5823 * dcmd.opcode - MR_DCMD_DEV_GET_TARGET_PROP
5824 * dcmd.mbox.b[0] - DCMD is to be fired for LD or system PD.
5825 * 0 = system PD, 1 = LD.
5826 * dcmd.mbox.s[1] - TargetID for LD/system PD.
5827 * dcmd.sge IN - Pointer to return MR_TARGET_DEV_PROPERTIES.
5828 *
5829 * @instance: Adapter soft state
5830 * @sdev: OS provided scsi device
5831 *
5832 * Returns 0 on success non-zero on failure.
5833 */
5834 static int
5835 megasas_get_target_prop(struct megasas_instance *instance,
5836 struct scsi_device *sdev)
5837 {
5838 int ret;
5839 struct megasas_cmd *cmd;
5840 struct megasas_dcmd_frame *dcmd;
5841 u16 targetId = (sdev->channel % 2) + sdev->id;
5842
5843 cmd = megasas_get_cmd(instance);
5844
5845 if (!cmd) {
5846 dev_err(&instance->pdev->dev,
5847 "Failed to get cmd %s\n", __func__);
5848 return -ENOMEM;
5849 }
5850
5851 dcmd = &cmd->frame->dcmd;
5852
5853 memset(instance->tgt_prop, 0, sizeof(*instance->tgt_prop));
5854 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
5855 dcmd->mbox.b[0] = MEGASAS_IS_LOGICAL(sdev);
5856
5857 dcmd->mbox.s[1] = cpu_to_le16(targetId);
5858 dcmd->cmd = MFI_CMD_DCMD;
5859 dcmd->cmd_status = 0xFF;
5860 dcmd->sge_count = 1;
5861 dcmd->flags = MFI_FRAME_DIR_READ;
5862 dcmd->timeout = 0;
5863 dcmd->pad_0 = 0;
5864 dcmd->data_xfer_len =
5865 cpu_to_le32(sizeof(struct MR_TARGET_PROPERTIES));
5866 dcmd->opcode = cpu_to_le32(MR_DCMD_DRV_GET_TARGET_PROP);
5867
5868 megasas_set_dma_settings(instance, dcmd, instance->tgt_prop_h,
5869 sizeof(struct MR_TARGET_PROPERTIES));
5870
5871 if ((instance->adapter_type != MFI_SERIES) &&
5872 !instance->mask_interrupts)
5873 ret = megasas_issue_blocked_cmd(instance,
5874 cmd, MFI_IO_TIMEOUT_SECS);
5875 else
5876 ret = megasas_issue_polled(instance, cmd);
5877
5878 switch (ret) {
5879 case DCMD_TIMEOUT:
5880 switch (dcmd_timeout_ocr_possible(instance)) {
5881 case INITIATE_OCR:
5882 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
5883 megasas_reset_fusion(instance->host,
5884 MFI_IO_TIMEOUT_OCR);
5885 break;
5886 case KILL_ADAPTER:
5887 megaraid_sas_kill_hba(instance);
5888 break;
5889 case IGNORE_TIMEOUT:
5890 dev_info(&instance->pdev->dev,
5891 "Ignore DCMD timeout: %s %d\n",
5892 __func__, __LINE__);
5893 break;
5894 }
5895 break;
5896
5897 default:
5898 megasas_return_cmd(instance, cmd);
5899 }
5900 if (ret != DCMD_SUCCESS)
5901 dev_err(&instance->pdev->dev,
5902 "return from %s %d return value %d\n",
5903 __func__, __LINE__, ret);
5904
5905 return ret;
5906 }
5907
5908 /**
5909 * megasas_start_aen - Subscribes to AEN during driver load time
5910 * @instance: Adapter soft state
5911 */
5912 static int megasas_start_aen(struct megasas_instance *instance)
5913 {
5914 struct megasas_evt_log_info eli;
5915 union megasas_evt_class_locale class_locale;
5916
5917 /*
5918 * Get the latest sequence number from FW
5919 */
5920 memset(&eli, 0, sizeof(eli));
5921
5922 if (megasas_get_seq_num(instance, &eli))
5923 return -1;
5924
5925 /*
5926 * Register AEN with FW for latest sequence number plus 1
5927 */
5928 class_locale.members.reserved = 0;
5929 class_locale.members.locale = MR_EVT_LOCALE_ALL;
5930 class_locale.members.class = MR_EVT_CLASS_DEBUG;
5931
5932 return megasas_register_aen(instance,
5933 le32_to_cpu(eli.newest_seq_num) + 1,
5934 class_locale.word);
5935 }
5936
5937 /**
5938 * megasas_io_attach - Attaches this driver to SCSI mid-layer
5939 * @instance: Adapter soft state
5940 */
5941 static int megasas_io_attach(struct megasas_instance *instance)
5942 {
5943 struct Scsi_Host *host = instance->host;
5944
5945 /*
5946 * Export parameters required by SCSI mid-layer
5947 */
5948 host->unique_id = instance->unique_id;
5949 host->can_queue = instance->max_scsi_cmds;
5950 host->this_id = instance->init_id;
5951 host->sg_tablesize = instance->max_num_sge;
5952
5953 if (instance->fw_support_ieee)
5954 instance->max_sectors_per_req = MEGASAS_MAX_SECTORS_IEEE;
5955
5956 /*
5957 * Check if the module parameter value for max_sectors can be used
5958 */
5959 if (max_sectors && max_sectors < instance->max_sectors_per_req)
5960 instance->max_sectors_per_req = max_sectors;
5961 else {
5962 if (max_sectors) {
5963 if (((instance->pdev->device ==
5964 PCI_DEVICE_ID_LSI_SAS1078GEN2) ||
5965 (instance->pdev->device ==
5966 PCI_DEVICE_ID_LSI_SAS0079GEN2)) &&
5967 (max_sectors <= MEGASAS_MAX_SECTORS)) {
5968 instance->max_sectors_per_req = max_sectors;
5969 } else {
5970 dev_info(&instance->pdev->dev, "max_sectors should be > 0"
5971 "and <= %d (or < 1MB for GEN2 controller)\n",
5972 instance->max_sectors_per_req);
5973 }
5974 }
5975 }
5976
5977 host->max_sectors = instance->max_sectors_per_req;
5978 host->cmd_per_lun = MEGASAS_DEFAULT_CMD_PER_LUN;
5979 host->max_channel = MEGASAS_MAX_CHANNELS - 1;
5980 host->max_id = MEGASAS_MAX_DEV_PER_CHANNEL;
5981 host->max_lun = MEGASAS_MAX_LUN;
5982 host->max_cmd_len = 16;
5983
5984 /*
5985 * Notify the mid-layer about the new controller
5986 */
5987 if (scsi_add_host(host, &instance->pdev->dev)) {
5988 dev_err(&instance->pdev->dev,
5989 "Failed to add host from %s %d\n",
5990 __func__, __LINE__);
5991 return -ENODEV;
5992 }
5993
5994 return 0;
5995 }
5996
5997 /**
5998 * megasas_set_dma_mask - Set DMA mask for supported controllers
5999 *
6000 * @instance: Adapter soft state
6001 * Description:
6002 *
6003 * For Ventura, driver/FW will operate in 64bit DMA addresses.
6004 *
6005 * For invader-
6006 * By default, driver/FW will operate in 32bit DMA addresses
6007 * for consistent DMA mapping but if 32 bit consistent
6008 * DMA mask fails, driver will try with 64 bit consistent
6009 * mask provided FW is true 64bit DMA capable
6010 *
6011 * For older controllers(Thunderbolt and MFI based adapters)-
6012 * driver/FW will operate in 32 bit consistent DMA addresses.
6013 */
6014 static int
6015 megasas_set_dma_mask(struct megasas_instance *instance)
6016 {
6017 u64 consistent_mask;
6018 struct pci_dev *pdev;
6019 u32 scratch_pad_2;
6020
6021 pdev = instance->pdev;
6022 consistent_mask = (instance->adapter_type == VENTURA_SERIES) ?
6023 DMA_BIT_MASK(64) : DMA_BIT_MASK(32);
6024
6025 if (IS_DMA64) {
6026 if (dma_set_mask(&pdev->dev, DMA_BIT_MASK(64)) &&
6027 dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)))
6028 goto fail_set_dma_mask;
6029
6030 if ((*pdev->dev.dma_mask == DMA_BIT_MASK(64)) &&
6031 (dma_set_coherent_mask(&pdev->dev, consistent_mask) &&
6032 dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)))) {
6033 /*
6034 * If 32 bit DMA mask fails, then try for 64 bit mask
6035 * for FW capable of handling 64 bit DMA.
6036 */
6037 scratch_pad_2 = readl
6038 (&instance->reg_set->outbound_scratch_pad_2);
6039
6040 if (!(scratch_pad_2 & MR_CAN_HANDLE_64_BIT_DMA_OFFSET))
6041 goto fail_set_dma_mask;
6042 else if (dma_set_mask_and_coherent(&pdev->dev,
6043 DMA_BIT_MASK(64)))
6044 goto fail_set_dma_mask;
6045 }
6046 } else if (dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)))
6047 goto fail_set_dma_mask;
6048
6049 if (pdev->dev.coherent_dma_mask == DMA_BIT_MASK(32))
6050 instance->consistent_mask_64bit = false;
6051 else
6052 instance->consistent_mask_64bit = true;
6053
6054 dev_info(&pdev->dev, "%s bit DMA mask and %s bit consistent mask\n",
6055 ((*pdev->dev.dma_mask == DMA_BIT_MASK(64)) ? "64" : "32"),
6056 (instance->consistent_mask_64bit ? "64" : "32"));
6057
6058 return 0;
6059
6060 fail_set_dma_mask:
6061 dev_err(&pdev->dev, "Failed to set DMA mask\n");
6062 return -1;
6063
6064 }
6065
6066 /*
6067 * megasas_set_adapter_type - Set adapter type.
6068 * Supported controllers can be divided in
6069 * 4 categories- enum MR_ADAPTER_TYPE {
6070 * MFI_SERIES = 1,
6071 * THUNDERBOLT_SERIES = 2,
6072 * INVADER_SERIES = 3,
6073 * VENTURA_SERIES = 4,
6074 * };
6075 * @instance: Adapter soft state
6076 * return: void
6077 */
6078 static inline void megasas_set_adapter_type(struct megasas_instance *instance)
6079 {
6080 if ((instance->pdev->vendor == PCI_VENDOR_ID_DELL) &&
6081 (instance->pdev->device == PCI_DEVICE_ID_DELL_PERC5)) {
6082 instance->adapter_type = MFI_SERIES;
6083 } else {
6084 switch (instance->pdev->device) {
6085 case PCI_DEVICE_ID_LSI_VENTURA:
6086 case PCI_DEVICE_ID_LSI_CRUSADER:
6087 case PCI_DEVICE_ID_LSI_HARPOON:
6088 case PCI_DEVICE_ID_LSI_TOMCAT:
6089 case PCI_DEVICE_ID_LSI_VENTURA_4PORT:
6090 case PCI_DEVICE_ID_LSI_CRUSADER_4PORT:
6091 instance->adapter_type = VENTURA_SERIES;
6092 break;
6093 case PCI_DEVICE_ID_LSI_FUSION:
6094 case PCI_DEVICE_ID_LSI_PLASMA:
6095 instance->adapter_type = THUNDERBOLT_SERIES;
6096 break;
6097 case PCI_DEVICE_ID_LSI_INVADER:
6098 case PCI_DEVICE_ID_LSI_INTRUDER:
6099 case PCI_DEVICE_ID_LSI_INTRUDER_24:
6100 case PCI_DEVICE_ID_LSI_CUTLASS_52:
6101 case PCI_DEVICE_ID_LSI_CUTLASS_53:
6102 case PCI_DEVICE_ID_LSI_FURY:
6103 instance->adapter_type = INVADER_SERIES;
6104 break;
6105 default: /* For all other supported controllers */
6106 instance->adapter_type = MFI_SERIES;
6107 break;
6108 }
6109 }
6110 }
6111
6112 static inline int megasas_alloc_mfi_ctrl_mem(struct megasas_instance *instance)
6113 {
6114 instance->producer = pci_alloc_consistent(instance->pdev, sizeof(u32),
6115 &instance->producer_h);
6116 instance->consumer = pci_alloc_consistent(instance->pdev, sizeof(u32),
6117 &instance->consumer_h);
6118
6119 if (!instance->producer || !instance->consumer) {
6120 dev_err(&instance->pdev->dev,
6121 "Failed to allocate memory for producer, consumer\n");
6122 return -1;
6123 }
6124
6125 *instance->producer = 0;
6126 *instance->consumer = 0;
6127 return 0;
6128 }
6129
6130 /**
6131 * megasas_alloc_ctrl_mem - Allocate per controller memory for core data
6132 * structures which are not common across MFI
6133 * adapters and fusion adapters.
6134 * For MFI based adapters, allocate producer and
6135 * consumer buffers. For fusion adapters, allocate
6136 * memory for fusion context.
6137 * @instance: Adapter soft state
6138 * return: 0 for SUCCESS
6139 */
6140 static int megasas_alloc_ctrl_mem(struct megasas_instance *instance)
6141 {
6142 instance->reply_map = kcalloc(nr_cpu_ids, sizeof(unsigned int),
6143 GFP_KERNEL);
6144 if (!instance->reply_map)
6145 return -ENOMEM;
6146
6147 switch (instance->adapter_type) {
6148 case MFI_SERIES:
6149 if (megasas_alloc_mfi_ctrl_mem(instance))
6150 goto fail;
6151 break;
6152 case VENTURA_SERIES:
6153 case THUNDERBOLT_SERIES:
6154 case INVADER_SERIES:
6155 if (megasas_alloc_fusion_context(instance))
6156 goto fail;
6157 break;
6158 }
6159
6160 return 0;
6161 fail:
6162 kfree(instance->reply_map);
6163 instance->reply_map = NULL;
6164 return -ENOMEM;
6165 }
6166
6167 /*
6168 * megasas_free_ctrl_mem - Free fusion context for fusion adapters and
6169 * producer, consumer buffers for MFI adapters
6170 *
6171 * @instance - Adapter soft instance
6172 *
6173 */
6174 static inline void megasas_free_ctrl_mem(struct megasas_instance *instance)
6175 {
6176 kfree(instance->reply_map);
6177 if (instance->adapter_type == MFI_SERIES) {
6178 if (instance->producer)
6179 pci_free_consistent(instance->pdev, sizeof(u32),
6180 instance->producer,
6181 instance->producer_h);
6182 if (instance->consumer)
6183 pci_free_consistent(instance->pdev, sizeof(u32),
6184 instance->consumer,
6185 instance->consumer_h);
6186 } else {
6187 megasas_free_fusion_context(instance);
6188 }
6189 }
6190
6191 /**
6192 * megasas_alloc_ctrl_dma_buffers - Allocate consistent DMA buffers during
6193 * driver load time
6194 *
6195 * @instance- Adapter soft instance
6196 * @return- O for SUCCESS
6197 */
6198 static inline
6199 int megasas_alloc_ctrl_dma_buffers(struct megasas_instance *instance)
6200 {
6201 struct pci_dev *pdev = instance->pdev;
6202 struct fusion_context *fusion = instance->ctrl_context;
6203
6204 instance->evt_detail =
6205 pci_alloc_consistent(pdev,
6206 sizeof(struct megasas_evt_detail),
6207 &instance->evt_detail_h);
6208
6209 if (!instance->evt_detail) {
6210 dev_err(&instance->pdev->dev,
6211 "Failed to allocate event detail buffer\n");
6212 return -ENOMEM;
6213 }
6214
6215 if (fusion) {
6216 fusion->ioc_init_request =
6217 dma_alloc_coherent(&pdev->dev,
6218 sizeof(struct MPI2_IOC_INIT_REQUEST),
6219 &fusion->ioc_init_request_phys,
6220 GFP_KERNEL);
6221
6222 if (!fusion->ioc_init_request) {
6223 dev_err(&pdev->dev,
6224 "Failed to allocate PD list buffer\n");
6225 return -ENOMEM;
6226 }
6227 }
6228
6229 instance->pd_list_buf =
6230 pci_alloc_consistent(pdev,
6231 MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST),
6232 &instance->pd_list_buf_h);
6233
6234 if (!instance->pd_list_buf) {
6235 dev_err(&pdev->dev, "Failed to allocate PD list buffer\n");
6236 return -ENOMEM;
6237 }
6238
6239 instance->ctrl_info_buf =
6240 pci_alloc_consistent(pdev,
6241 sizeof(struct megasas_ctrl_info),
6242 &instance->ctrl_info_buf_h);
6243
6244 if (!instance->ctrl_info_buf) {
6245 dev_err(&pdev->dev,
6246 "Failed to allocate controller info buffer\n");
6247 return -ENOMEM;
6248 }
6249
6250 instance->ld_list_buf =
6251 pci_alloc_consistent(pdev,
6252 sizeof(struct MR_LD_LIST),
6253 &instance->ld_list_buf_h);
6254
6255 if (!instance->ld_list_buf) {
6256 dev_err(&pdev->dev, "Failed to allocate LD list buffer\n");
6257 return -ENOMEM;
6258 }
6259
6260 instance->ld_targetid_list_buf =
6261 pci_alloc_consistent(pdev,
6262 sizeof(struct MR_LD_TARGETID_LIST),
6263 &instance->ld_targetid_list_buf_h);
6264
6265 if (!instance->ld_targetid_list_buf) {
6266 dev_err(&pdev->dev,
6267 "Failed to allocate LD targetid list buffer\n");
6268 return -ENOMEM;
6269 }
6270
6271 if (!reset_devices) {
6272 instance->system_info_buf =
6273 pci_alloc_consistent(pdev,
6274 sizeof(struct MR_DRV_SYSTEM_INFO),
6275 &instance->system_info_h);
6276 instance->pd_info =
6277 pci_alloc_consistent(pdev,
6278 sizeof(struct MR_PD_INFO),
6279 &instance->pd_info_h);
6280 instance->tgt_prop =
6281 pci_alloc_consistent(pdev,
6282 sizeof(struct MR_TARGET_PROPERTIES),
6283 &instance->tgt_prop_h);
6284 instance->crash_dump_buf =
6285 pci_alloc_consistent(pdev,
6286 CRASH_DMA_BUF_SIZE,
6287 &instance->crash_dump_h);
6288
6289 if (!instance->system_info_buf)
6290 dev_err(&instance->pdev->dev,
6291 "Failed to allocate system info buffer\n");
6292
6293 if (!instance->pd_info)
6294 dev_err(&instance->pdev->dev,
6295 "Failed to allocate pd_info buffer\n");
6296
6297 if (!instance->tgt_prop)
6298 dev_err(&instance->pdev->dev,
6299 "Failed to allocate tgt_prop buffer\n");
6300
6301 if (!instance->crash_dump_buf)
6302 dev_err(&instance->pdev->dev,
6303 "Failed to allocate crash dump buffer\n");
6304 }
6305
6306 return 0;
6307 }
6308
6309 /*
6310 * megasas_free_ctrl_dma_buffers - Free consistent DMA buffers allocated
6311 * during driver load time
6312 *
6313 * @instance- Adapter soft instance
6314 *
6315 */
6316 static inline
6317 void megasas_free_ctrl_dma_buffers(struct megasas_instance *instance)
6318 {
6319 struct pci_dev *pdev = instance->pdev;
6320 struct fusion_context *fusion = instance->ctrl_context;
6321
6322 if (instance->evt_detail)
6323 pci_free_consistent(pdev, sizeof(struct megasas_evt_detail),
6324 instance->evt_detail,
6325 instance->evt_detail_h);
6326
6327 if (fusion && fusion->ioc_init_request)
6328 dma_free_coherent(&pdev->dev,
6329 sizeof(struct MPI2_IOC_INIT_REQUEST),
6330 fusion->ioc_init_request,
6331 fusion->ioc_init_request_phys);
6332
6333 if (instance->pd_list_buf)
6334 pci_free_consistent(pdev,
6335 MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST),
6336 instance->pd_list_buf,
6337 instance->pd_list_buf_h);
6338
6339 if (instance->ld_list_buf)
6340 pci_free_consistent(pdev, sizeof(struct MR_LD_LIST),
6341 instance->ld_list_buf,
6342 instance->ld_list_buf_h);
6343
6344 if (instance->ld_targetid_list_buf)
6345 pci_free_consistent(pdev, sizeof(struct MR_LD_TARGETID_LIST),
6346 instance->ld_targetid_list_buf,
6347 instance->ld_targetid_list_buf_h);
6348
6349 if (instance->ctrl_info_buf)
6350 pci_free_consistent(pdev, sizeof(struct megasas_ctrl_info),
6351 instance->ctrl_info_buf,
6352 instance->ctrl_info_buf_h);
6353
6354 if (instance->system_info_buf)
6355 pci_free_consistent(pdev, sizeof(struct MR_DRV_SYSTEM_INFO),
6356 instance->system_info_buf,
6357 instance->system_info_h);
6358
6359 if (instance->pd_info)
6360 pci_free_consistent(pdev, sizeof(struct MR_PD_INFO),
6361 instance->pd_info, instance->pd_info_h);
6362
6363 if (instance->tgt_prop)
6364 pci_free_consistent(pdev, sizeof(struct MR_TARGET_PROPERTIES),
6365 instance->tgt_prop, instance->tgt_prop_h);
6366
6367 if (instance->crash_dump_buf)
6368 pci_free_consistent(pdev, CRASH_DMA_BUF_SIZE,
6369 instance->crash_dump_buf,
6370 instance->crash_dump_h);
6371 }
6372
6373 /*
6374 * megasas_init_ctrl_params - Initialize controller's instance
6375 * parameters before FW init
6376 * @instance - Adapter soft instance
6377 * @return - void
6378 */
6379 static inline void megasas_init_ctrl_params(struct megasas_instance *instance)
6380 {
6381 instance->fw_crash_state = UNAVAILABLE;
6382
6383 megasas_poll_wait_aen = 0;
6384 instance->issuepend_done = 1;
6385 atomic_set(&instance->adprecovery, MEGASAS_HBA_OPERATIONAL);
6386
6387 /*
6388 * Initialize locks and queues
6389 */
6390 INIT_LIST_HEAD(&instance->cmd_pool);
6391 INIT_LIST_HEAD(&instance->internal_reset_pending_q);
6392
6393 atomic_set(&instance->fw_outstanding, 0);
6394
6395 init_waitqueue_head(&instance->int_cmd_wait_q);
6396 init_waitqueue_head(&instance->abort_cmd_wait_q);
6397
6398 spin_lock_init(&instance->crashdump_lock);
6399 spin_lock_init(&instance->mfi_pool_lock);
6400 spin_lock_init(&instance->hba_lock);
6401 spin_lock_init(&instance->stream_lock);
6402 spin_lock_init(&instance->completion_lock);
6403
6404 mutex_init(&instance->reset_mutex);
6405
6406 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
6407 (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY))
6408 instance->flag_ieee = 1;
6409
6410 megasas_dbg_lvl = 0;
6411 instance->flag = 0;
6412 instance->unload = 1;
6413 instance->last_time = 0;
6414 instance->disableOnlineCtrlReset = 1;
6415 instance->UnevenSpanSupport = 0;
6416
6417 if (instance->adapter_type != MFI_SERIES) {
6418 INIT_WORK(&instance->work_init, megasas_fusion_ocr_wq);
6419 INIT_WORK(&instance->crash_init, megasas_fusion_crash_dump_wq);
6420 } else {
6421 INIT_WORK(&instance->work_init, process_fw_state_change_wq);
6422 }
6423 }
6424
6425 /**
6426 * megasas_probe_one - PCI hotplug entry point
6427 * @pdev: PCI device structure
6428 * @id: PCI ids of supported hotplugged adapter
6429 */
6430 static int megasas_probe_one(struct pci_dev *pdev,
6431 const struct pci_device_id *id)
6432 {
6433 int rval, pos;
6434 struct Scsi_Host *host;
6435 struct megasas_instance *instance;
6436 u16 control = 0;
6437
6438 /* Reset MSI-X in the kdump kernel */
6439 if (reset_devices) {
6440 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
6441 if (pos) {
6442 pci_read_config_word(pdev, pos + PCI_MSIX_FLAGS,
6443 &control);
6444 if (control & PCI_MSIX_FLAGS_ENABLE) {
6445 dev_info(&pdev->dev, "resetting MSI-X\n");
6446 pci_write_config_word(pdev,
6447 pos + PCI_MSIX_FLAGS,
6448 control &
6449 ~PCI_MSIX_FLAGS_ENABLE);
6450 }
6451 }
6452 }
6453
6454 /*
6455 * PCI prepping: enable device set bus mastering and dma mask
6456 */
6457 rval = pci_enable_device_mem(pdev);
6458
6459 if (rval) {
6460 return rval;
6461 }
6462
6463 pci_set_master(pdev);
6464
6465 host = scsi_host_alloc(&megasas_template,
6466 sizeof(struct megasas_instance));
6467
6468 if (!host) {
6469 dev_printk(KERN_DEBUG, &pdev->dev, "scsi_host_alloc failed\n");
6470 goto fail_alloc_instance;
6471 }
6472
6473 instance = (struct megasas_instance *)host->hostdata;
6474 memset(instance, 0, sizeof(*instance));
6475 atomic_set(&instance->fw_reset_no_pci_access, 0);
6476
6477 /*
6478 * Initialize PCI related and misc parameters
6479 */
6480 instance->pdev = pdev;
6481 instance->host = host;
6482 instance->unique_id = pdev->bus->number << 8 | pdev->devfn;
6483 instance->init_id = MEGASAS_DEFAULT_INIT_ID;
6484
6485 megasas_set_adapter_type(instance);
6486
6487 /*
6488 * Initialize MFI Firmware
6489 */
6490 if (megasas_init_fw(instance))
6491 goto fail_init_mfi;
6492
6493 if (instance->requestorId) {
6494 if (instance->PlasmaFW111) {
6495 instance->vf_affiliation_111 =
6496 pci_alloc_consistent(pdev, sizeof(struct MR_LD_VF_AFFILIATION_111),
6497 &instance->vf_affiliation_111_h);
6498 if (!instance->vf_affiliation_111)
6499 dev_warn(&pdev->dev, "Can't allocate "
6500 "memory for VF affiliation buffer\n");
6501 } else {
6502 instance->vf_affiliation =
6503 pci_alloc_consistent(pdev,
6504 (MAX_LOGICAL_DRIVES + 1) *
6505 sizeof(struct MR_LD_VF_AFFILIATION),
6506 &instance->vf_affiliation_h);
6507 if (!instance->vf_affiliation)
6508 dev_warn(&pdev->dev, "Can't allocate "
6509 "memory for VF affiliation buffer\n");
6510 }
6511 }
6512
6513 /*
6514 * Store instance in PCI softstate
6515 */
6516 pci_set_drvdata(pdev, instance);
6517
6518 /*
6519 * Add this controller to megasas_mgmt_info structure so that it
6520 * can be exported to management applications
6521 */
6522 megasas_mgmt_info.count++;
6523 megasas_mgmt_info.instance[megasas_mgmt_info.max_index] = instance;
6524 megasas_mgmt_info.max_index++;
6525
6526 /*
6527 * Register with SCSI mid-layer
6528 */
6529 if (megasas_io_attach(instance))
6530 goto fail_io_attach;
6531
6532 instance->unload = 0;
6533 /*
6534 * Trigger SCSI to scan our drives
6535 */
6536 scsi_scan_host(host);
6537
6538 /*
6539 * Initiate AEN (Asynchronous Event Notification)
6540 */
6541 if (megasas_start_aen(instance)) {
6542 dev_printk(KERN_DEBUG, &pdev->dev, "start aen failed\n");
6543 goto fail_start_aen;
6544 }
6545
6546 /* Get current SR-IOV LD/VF affiliation */
6547 if (instance->requestorId)
6548 megasas_get_ld_vf_affiliation(instance, 1);
6549
6550 return 0;
6551
6552 fail_start_aen:
6553 fail_io_attach:
6554 megasas_mgmt_info.count--;
6555 megasas_mgmt_info.max_index--;
6556 megasas_mgmt_info.instance[megasas_mgmt_info.max_index] = NULL;
6557
6558 instance->instancet->disable_intr(instance);
6559 megasas_destroy_irqs(instance);
6560
6561 if (instance->adapter_type != MFI_SERIES)
6562 megasas_release_fusion(instance);
6563 else
6564 megasas_release_mfi(instance);
6565 if (instance->msix_vectors)
6566 pci_free_irq_vectors(instance->pdev);
6567 fail_init_mfi:
6568 scsi_host_put(host);
6569 fail_alloc_instance:
6570 pci_disable_device(pdev);
6571
6572 return -ENODEV;
6573 }
6574
6575 /**
6576 * megasas_flush_cache - Requests FW to flush all its caches
6577 * @instance: Adapter soft state
6578 */
6579 static void megasas_flush_cache(struct megasas_instance *instance)
6580 {
6581 struct megasas_cmd *cmd;
6582 struct megasas_dcmd_frame *dcmd;
6583
6584 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR)
6585 return;
6586
6587 cmd = megasas_get_cmd(instance);
6588
6589 if (!cmd)
6590 return;
6591
6592 dcmd = &cmd->frame->dcmd;
6593
6594 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
6595
6596 dcmd->cmd = MFI_CMD_DCMD;
6597 dcmd->cmd_status = 0x0;
6598 dcmd->sge_count = 0;
6599 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_NONE);
6600 dcmd->timeout = 0;
6601 dcmd->pad_0 = 0;
6602 dcmd->data_xfer_len = 0;
6603 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_CACHE_FLUSH);
6604 dcmd->mbox.b[0] = MR_FLUSH_CTRL_CACHE | MR_FLUSH_DISK_CACHE;
6605
6606 if (megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS)
6607 != DCMD_SUCCESS) {
6608 dev_err(&instance->pdev->dev,
6609 "return from %s %d\n", __func__, __LINE__);
6610 return;
6611 }
6612
6613 megasas_return_cmd(instance, cmd);
6614 }
6615
6616 /**
6617 * megasas_shutdown_controller - Instructs FW to shutdown the controller
6618 * @instance: Adapter soft state
6619 * @opcode: Shutdown/Hibernate
6620 */
6621 static void megasas_shutdown_controller(struct megasas_instance *instance,
6622 u32 opcode)
6623 {
6624 struct megasas_cmd *cmd;
6625 struct megasas_dcmd_frame *dcmd;
6626
6627 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR)
6628 return;
6629
6630 cmd = megasas_get_cmd(instance);
6631
6632 if (!cmd)
6633 return;
6634
6635 if (instance->aen_cmd)
6636 megasas_issue_blocked_abort_cmd(instance,
6637 instance->aen_cmd, MFI_IO_TIMEOUT_SECS);
6638 if (instance->map_update_cmd)
6639 megasas_issue_blocked_abort_cmd(instance,
6640 instance->map_update_cmd, MFI_IO_TIMEOUT_SECS);
6641 if (instance->jbod_seq_cmd)
6642 megasas_issue_blocked_abort_cmd(instance,
6643 instance->jbod_seq_cmd, MFI_IO_TIMEOUT_SECS);
6644
6645 dcmd = &cmd->frame->dcmd;
6646
6647 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
6648
6649 dcmd->cmd = MFI_CMD_DCMD;
6650 dcmd->cmd_status = 0x0;
6651 dcmd->sge_count = 0;
6652 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_NONE);
6653 dcmd->timeout = 0;
6654 dcmd->pad_0 = 0;
6655 dcmd->data_xfer_len = 0;
6656 dcmd->opcode = cpu_to_le32(opcode);
6657
6658 if (megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS)
6659 != DCMD_SUCCESS) {
6660 dev_err(&instance->pdev->dev,
6661 "return from %s %d\n", __func__, __LINE__);
6662 return;
6663 }
6664
6665 megasas_return_cmd(instance, cmd);
6666 }
6667
6668 #ifdef CONFIG_PM
6669 /**
6670 * megasas_suspend - driver suspend entry point
6671 * @pdev: PCI device structure
6672 * @state: PCI power state to suspend routine
6673 */
6674 static int
6675 megasas_suspend(struct pci_dev *pdev, pm_message_t state)
6676 {
6677 struct Scsi_Host *host;
6678 struct megasas_instance *instance;
6679
6680 instance = pci_get_drvdata(pdev);
6681 host = instance->host;
6682 instance->unload = 1;
6683
6684 /* Shutdown SR-IOV heartbeat timer */
6685 if (instance->requestorId && !instance->skip_heartbeat_timer_del)
6686 del_timer_sync(&instance->sriov_heartbeat_timer);
6687
6688 megasas_flush_cache(instance);
6689 megasas_shutdown_controller(instance, MR_DCMD_HIBERNATE_SHUTDOWN);
6690
6691 /* cancel the delayed work if this work still in queue */
6692 if (instance->ev != NULL) {
6693 struct megasas_aen_event *ev = instance->ev;
6694 cancel_delayed_work_sync(&ev->hotplug_work);
6695 instance->ev = NULL;
6696 }
6697
6698 tasklet_kill(&instance->isr_tasklet);
6699
6700 pci_set_drvdata(instance->pdev, instance);
6701 instance->instancet->disable_intr(instance);
6702
6703 megasas_destroy_irqs(instance);
6704
6705 if (instance->msix_vectors)
6706 pci_free_irq_vectors(instance->pdev);
6707
6708 pci_save_state(pdev);
6709 pci_disable_device(pdev);
6710
6711 pci_set_power_state(pdev, pci_choose_state(pdev, state));
6712
6713 return 0;
6714 }
6715
6716 /**
6717 * megasas_resume- driver resume entry point
6718 * @pdev: PCI device structure
6719 */
6720 static int
6721 megasas_resume(struct pci_dev *pdev)
6722 {
6723 int rval;
6724 struct Scsi_Host *host;
6725 struct megasas_instance *instance;
6726 int irq_flags = PCI_IRQ_LEGACY;
6727
6728 instance = pci_get_drvdata(pdev);
6729 host = instance->host;
6730 pci_set_power_state(pdev, PCI_D0);
6731 pci_enable_wake(pdev, PCI_D0, 0);
6732 pci_restore_state(pdev);
6733
6734 /*
6735 * PCI prepping: enable device set bus mastering and dma mask
6736 */
6737 rval = pci_enable_device_mem(pdev);
6738
6739 if (rval) {
6740 dev_err(&pdev->dev, "Enable device failed\n");
6741 return rval;
6742 }
6743
6744 pci_set_master(pdev);
6745
6746 /*
6747 * We expect the FW state to be READY
6748 */
6749 if (megasas_transition_to_ready(instance, 0))
6750 goto fail_ready_state;
6751
6752 if (megasas_set_dma_mask(instance))
6753 goto fail_set_dma_mask;
6754
6755 /*
6756 * Initialize MFI Firmware
6757 */
6758
6759 atomic_set(&instance->fw_outstanding, 0);
6760 atomic_set(&instance->ldio_outstanding, 0);
6761
6762 /* Now re-enable MSI-X */
6763 if (instance->msix_vectors) {
6764 irq_flags = PCI_IRQ_MSIX;
6765 if (smp_affinity_enable)
6766 irq_flags |= PCI_IRQ_AFFINITY;
6767 }
6768 rval = pci_alloc_irq_vectors(instance->pdev, 1,
6769 instance->msix_vectors ?
6770 instance->msix_vectors : 1, irq_flags);
6771 if (rval < 0)
6772 goto fail_reenable_msix;
6773
6774 megasas_setup_reply_map(instance);
6775
6776 if (instance->adapter_type != MFI_SERIES) {
6777 megasas_reset_reply_desc(instance);
6778 if (megasas_ioc_init_fusion(instance)) {
6779 megasas_free_cmds(instance);
6780 megasas_free_cmds_fusion(instance);
6781 goto fail_init_mfi;
6782 }
6783 if (!megasas_get_map_info(instance))
6784 megasas_sync_map_info(instance);
6785 } else {
6786 *instance->producer = 0;
6787 *instance->consumer = 0;
6788 if (megasas_issue_init_mfi(instance))
6789 goto fail_init_mfi;
6790 }
6791
6792 tasklet_init(&instance->isr_tasklet, instance->instancet->tasklet,
6793 (unsigned long)instance);
6794
6795 if (instance->msix_vectors ?
6796 megasas_setup_irqs_msix(instance, 0) :
6797 megasas_setup_irqs_ioapic(instance))
6798 goto fail_init_mfi;
6799
6800 /* Re-launch SR-IOV heartbeat timer */
6801 if (instance->requestorId) {
6802 if (!megasas_sriov_start_heartbeat(instance, 0))
6803 megasas_start_timer(instance);
6804 else {
6805 instance->skip_heartbeat_timer_del = 1;
6806 goto fail_init_mfi;
6807 }
6808 }
6809
6810 instance->instancet->enable_intr(instance);
6811 megasas_setup_jbod_map(instance);
6812 instance->unload = 0;
6813
6814 /*
6815 * Initiate AEN (Asynchronous Event Notification)
6816 */
6817 if (megasas_start_aen(instance))
6818 dev_err(&instance->pdev->dev, "Start AEN failed\n");
6819
6820 return 0;
6821
6822 fail_init_mfi:
6823 megasas_free_ctrl_dma_buffers(instance);
6824 megasas_free_ctrl_mem(instance);
6825 scsi_host_put(host);
6826
6827 fail_reenable_msix:
6828 fail_set_dma_mask:
6829 fail_ready_state:
6830
6831 pci_disable_device(pdev);
6832
6833 return -ENODEV;
6834 }
6835 #else
6836 #define megasas_suspend NULL
6837 #define megasas_resume NULL
6838 #endif
6839
6840 static inline int
6841 megasas_wait_for_adapter_operational(struct megasas_instance *instance)
6842 {
6843 int wait_time = MEGASAS_RESET_WAIT_TIME * 2;
6844 int i;
6845
6846 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR)
6847 return 1;
6848
6849 for (i = 0; i < wait_time; i++) {
6850 if (atomic_read(&instance->adprecovery) == MEGASAS_HBA_OPERATIONAL)
6851 break;
6852
6853 if (!(i % MEGASAS_RESET_NOTICE_INTERVAL))
6854 dev_notice(&instance->pdev->dev, "waiting for controller reset to finish\n");
6855
6856 msleep(1000);
6857 }
6858
6859 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) {
6860 dev_info(&instance->pdev->dev, "%s timed out while waiting for HBA to recover.\n",
6861 __func__);
6862 return 1;
6863 }
6864
6865 return 0;
6866 }
6867
6868 /**
6869 * megasas_detach_one - PCI hot"un"plug entry point
6870 * @pdev: PCI device structure
6871 */
6872 static void megasas_detach_one(struct pci_dev *pdev)
6873 {
6874 int i;
6875 struct Scsi_Host *host;
6876 struct megasas_instance *instance;
6877 struct fusion_context *fusion;
6878 u32 pd_seq_map_sz;
6879
6880 instance = pci_get_drvdata(pdev);
6881 host = instance->host;
6882 fusion = instance->ctrl_context;
6883
6884 /* Shutdown SR-IOV heartbeat timer */
6885 if (instance->requestorId && !instance->skip_heartbeat_timer_del)
6886 del_timer_sync(&instance->sriov_heartbeat_timer);
6887
6888 if (instance->fw_crash_state != UNAVAILABLE)
6889 megasas_free_host_crash_buffer(instance);
6890 scsi_remove_host(instance->host);
6891 instance->unload = 1;
6892
6893 if (megasas_wait_for_adapter_operational(instance))
6894 goto skip_firing_dcmds;
6895
6896 megasas_flush_cache(instance);
6897 megasas_shutdown_controller(instance, MR_DCMD_CTRL_SHUTDOWN);
6898
6899 skip_firing_dcmds:
6900 /* cancel the delayed work if this work still in queue*/
6901 if (instance->ev != NULL) {
6902 struct megasas_aen_event *ev = instance->ev;
6903 cancel_delayed_work_sync(&ev->hotplug_work);
6904 instance->ev = NULL;
6905 }
6906
6907 /* cancel all wait events */
6908 wake_up_all(&instance->int_cmd_wait_q);
6909
6910 tasklet_kill(&instance->isr_tasklet);
6911
6912 /*
6913 * Take the instance off the instance array. Note that we will not
6914 * decrement the max_index. We let this array be sparse array
6915 */
6916 for (i = 0; i < megasas_mgmt_info.max_index; i++) {
6917 if (megasas_mgmt_info.instance[i] == instance) {
6918 megasas_mgmt_info.count--;
6919 megasas_mgmt_info.instance[i] = NULL;
6920
6921 break;
6922 }
6923 }
6924
6925 instance->instancet->disable_intr(instance);
6926
6927 megasas_destroy_irqs(instance);
6928
6929 if (instance->msix_vectors)
6930 pci_free_irq_vectors(instance->pdev);
6931
6932 if (instance->adapter_type == VENTURA_SERIES) {
6933 for (i = 0; i < MAX_LOGICAL_DRIVES_EXT; ++i)
6934 kfree(fusion->stream_detect_by_ld[i]);
6935 kfree(fusion->stream_detect_by_ld);
6936 fusion->stream_detect_by_ld = NULL;
6937 }
6938
6939
6940 if (instance->adapter_type != MFI_SERIES) {
6941 megasas_release_fusion(instance);
6942 pd_seq_map_sz = sizeof(struct MR_PD_CFG_SEQ_NUM_SYNC) +
6943 (sizeof(struct MR_PD_CFG_SEQ) *
6944 (MAX_PHYSICAL_DEVICES - 1));
6945 for (i = 0; i < 2 ; i++) {
6946 if (fusion->ld_map[i])
6947 dma_free_coherent(&instance->pdev->dev,
6948 fusion->max_map_sz,
6949 fusion->ld_map[i],
6950 fusion->ld_map_phys[i]);
6951 if (fusion->ld_drv_map[i]) {
6952 if (is_vmalloc_addr(fusion->ld_drv_map[i]))
6953 vfree(fusion->ld_drv_map[i]);
6954 else
6955 free_pages((ulong)fusion->ld_drv_map[i],
6956 fusion->drv_map_pages);
6957 }
6958
6959 if (fusion->pd_seq_sync[i])
6960 dma_free_coherent(&instance->pdev->dev,
6961 pd_seq_map_sz,
6962 fusion->pd_seq_sync[i],
6963 fusion->pd_seq_phys[i]);
6964 }
6965 } else {
6966 megasas_release_mfi(instance);
6967 }
6968
6969 if (instance->vf_affiliation)
6970 pci_free_consistent(pdev, (MAX_LOGICAL_DRIVES + 1) *
6971 sizeof(struct MR_LD_VF_AFFILIATION),
6972 instance->vf_affiliation,
6973 instance->vf_affiliation_h);
6974
6975 if (instance->vf_affiliation_111)
6976 pci_free_consistent(pdev,
6977 sizeof(struct MR_LD_VF_AFFILIATION_111),
6978 instance->vf_affiliation_111,
6979 instance->vf_affiliation_111_h);
6980
6981 if (instance->hb_host_mem)
6982 pci_free_consistent(pdev, sizeof(struct MR_CTRL_HB_HOST_MEM),
6983 instance->hb_host_mem,
6984 instance->hb_host_mem_h);
6985
6986 megasas_free_ctrl_dma_buffers(instance);
6987
6988 megasas_free_ctrl_mem(instance);
6989
6990 scsi_host_put(host);
6991
6992 pci_disable_device(pdev);
6993 }
6994
6995 /**
6996 * megasas_shutdown - Shutdown entry point
6997 * @device: Generic device structure
6998 */
6999 static void megasas_shutdown(struct pci_dev *pdev)
7000 {
7001 struct megasas_instance *instance = pci_get_drvdata(pdev);
7002
7003 instance->unload = 1;
7004
7005 if (megasas_wait_for_adapter_operational(instance))
7006 goto skip_firing_dcmds;
7007
7008 megasas_flush_cache(instance);
7009 megasas_shutdown_controller(instance, MR_DCMD_CTRL_SHUTDOWN);
7010
7011 skip_firing_dcmds:
7012 instance->instancet->disable_intr(instance);
7013 megasas_destroy_irqs(instance);
7014
7015 if (instance->msix_vectors)
7016 pci_free_irq_vectors(instance->pdev);
7017 }
7018
7019 /**
7020 * megasas_mgmt_open - char node "open" entry point
7021 */
7022 static int megasas_mgmt_open(struct inode *inode, struct file *filep)
7023 {
7024 /*
7025 * Allow only those users with admin rights
7026 */
7027 if (!capable(CAP_SYS_ADMIN))
7028 return -EACCES;
7029
7030 return 0;
7031 }
7032
7033 /**
7034 * megasas_mgmt_fasync - Async notifier registration from applications
7035 *
7036 * This function adds the calling process to a driver global queue. When an
7037 * event occurs, SIGIO will be sent to all processes in this queue.
7038 */
7039 static int megasas_mgmt_fasync(int fd, struct file *filep, int mode)
7040 {
7041 int rc;
7042
7043 mutex_lock(&megasas_async_queue_mutex);
7044
7045 rc = fasync_helper(fd, filep, mode, &megasas_async_queue);
7046
7047 mutex_unlock(&megasas_async_queue_mutex);
7048
7049 if (rc >= 0) {
7050 /* For sanity check when we get ioctl */
7051 filep->private_data = filep;
7052 return 0;
7053 }
7054
7055 printk(KERN_DEBUG "megasas: fasync_helper failed [%d]\n", rc);
7056
7057 return rc;
7058 }
7059
7060 /**
7061 * megasas_mgmt_poll - char node "poll" entry point
7062 * */
7063 static __poll_t megasas_mgmt_poll(struct file *file, poll_table *wait)
7064 {
7065 __poll_t mask;
7066 unsigned long flags;
7067
7068 poll_wait(file, &megasas_poll_wait, wait);
7069 spin_lock_irqsave(&poll_aen_lock, flags);
7070 if (megasas_poll_wait_aen)
7071 mask = (EPOLLIN | EPOLLRDNORM);
7072 else
7073 mask = 0;
7074 megasas_poll_wait_aen = 0;
7075 spin_unlock_irqrestore(&poll_aen_lock, flags);
7076 return mask;
7077 }
7078
7079 /*
7080 * megasas_set_crash_dump_params_ioctl:
7081 * Send CRASH_DUMP_MODE DCMD to all controllers
7082 * @cmd: MFI command frame
7083 */
7084
7085 static int megasas_set_crash_dump_params_ioctl(struct megasas_cmd *cmd)
7086 {
7087 struct megasas_instance *local_instance;
7088 int i, error = 0;
7089 int crash_support;
7090
7091 crash_support = cmd->frame->dcmd.mbox.w[0];
7092
7093 for (i = 0; i < megasas_mgmt_info.max_index; i++) {
7094 local_instance = megasas_mgmt_info.instance[i];
7095 if (local_instance && local_instance->crash_dump_drv_support) {
7096 if ((atomic_read(&local_instance->adprecovery) ==
7097 MEGASAS_HBA_OPERATIONAL) &&
7098 !megasas_set_crash_dump_params(local_instance,
7099 crash_support)) {
7100 local_instance->crash_dump_app_support =
7101 crash_support;
7102 dev_info(&local_instance->pdev->dev,
7103 "Application firmware crash "
7104 "dump mode set success\n");
7105 error = 0;
7106 } else {
7107 dev_info(&local_instance->pdev->dev,
7108 "Application firmware crash "
7109 "dump mode set failed\n");
7110 error = -1;
7111 }
7112 }
7113 }
7114 return error;
7115 }
7116
7117 /**
7118 * megasas_mgmt_fw_ioctl - Issues management ioctls to FW
7119 * @instance: Adapter soft state
7120 * @argp: User's ioctl packet
7121 */
7122 static int
7123 megasas_mgmt_fw_ioctl(struct megasas_instance *instance,
7124 struct megasas_iocpacket __user * user_ioc,
7125 struct megasas_iocpacket *ioc)
7126 {
7127 struct megasas_sge64 *kern_sge64 = NULL;
7128 struct megasas_sge32 *kern_sge32 = NULL;
7129 struct megasas_cmd *cmd;
7130 void *kbuff_arr[MAX_IOCTL_SGE];
7131 dma_addr_t buf_handle = 0;
7132 int error = 0, i;
7133 void *sense = NULL;
7134 dma_addr_t sense_handle;
7135 unsigned long *sense_ptr;
7136 u32 opcode = 0;
7137
7138 memset(kbuff_arr, 0, sizeof(kbuff_arr));
7139
7140 if (ioc->sge_count > MAX_IOCTL_SGE) {
7141 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SGE count [%d] > max limit [%d]\n",
7142 ioc->sge_count, MAX_IOCTL_SGE);
7143 return -EINVAL;
7144 }
7145
7146 if ((ioc->frame.hdr.cmd >= MFI_CMD_OP_COUNT) ||
7147 ((ioc->frame.hdr.cmd == MFI_CMD_NVME) &&
7148 !instance->support_nvme_passthru)) {
7149 dev_err(&instance->pdev->dev,
7150 "Received invalid ioctl command 0x%x\n",
7151 ioc->frame.hdr.cmd);
7152 return -ENOTSUPP;
7153 }
7154
7155 cmd = megasas_get_cmd(instance);
7156 if (!cmd) {
7157 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to get a cmd packet\n");
7158 return -ENOMEM;
7159 }
7160
7161 /*
7162 * User's IOCTL packet has 2 frames (maximum). Copy those two
7163 * frames into our cmd's frames. cmd->frame's context will get
7164 * overwritten when we copy from user's frames. So set that value
7165 * alone separately
7166 */
7167 memcpy(cmd->frame, ioc->frame.raw, 2 * MEGAMFI_FRAME_SIZE);
7168 cmd->frame->hdr.context = cpu_to_le32(cmd->index);
7169 cmd->frame->hdr.pad_0 = 0;
7170
7171 cmd->frame->hdr.flags &= (~MFI_FRAME_IEEE);
7172
7173 if (instance->consistent_mask_64bit)
7174 cmd->frame->hdr.flags |= cpu_to_le16((MFI_FRAME_SGL64 |
7175 MFI_FRAME_SENSE64));
7176 else
7177 cmd->frame->hdr.flags &= cpu_to_le16(~(MFI_FRAME_SGL64 |
7178 MFI_FRAME_SENSE64));
7179
7180 if (cmd->frame->hdr.cmd == MFI_CMD_DCMD)
7181 opcode = le32_to_cpu(cmd->frame->dcmd.opcode);
7182
7183 if (opcode == MR_DCMD_CTRL_SHUTDOWN) {
7184 if (megasas_get_ctrl_info(instance) != DCMD_SUCCESS) {
7185 megasas_return_cmd(instance, cmd);
7186 return -1;
7187 }
7188 }
7189
7190 if (opcode == MR_DRIVER_SET_APP_CRASHDUMP_MODE) {
7191 error = megasas_set_crash_dump_params_ioctl(cmd);
7192 megasas_return_cmd(instance, cmd);
7193 return error;
7194 }
7195
7196 /*
7197 * The management interface between applications and the fw uses
7198 * MFI frames. E.g, RAID configuration changes, LD property changes
7199 * etc are accomplishes through different kinds of MFI frames. The
7200 * driver needs to care only about substituting user buffers with
7201 * kernel buffers in SGLs. The location of SGL is embedded in the
7202 * struct iocpacket itself.
7203 */
7204 if (instance->consistent_mask_64bit)
7205 kern_sge64 = (struct megasas_sge64 *)
7206 ((unsigned long)cmd->frame + ioc->sgl_off);
7207 else
7208 kern_sge32 = (struct megasas_sge32 *)
7209 ((unsigned long)cmd->frame + ioc->sgl_off);
7210
7211 /*
7212 * For each user buffer, create a mirror buffer and copy in
7213 */
7214 for (i = 0; i < ioc->sge_count; i++) {
7215 if (!ioc->sgl[i].iov_len)
7216 continue;
7217
7218 kbuff_arr[i] = dma_alloc_coherent(&instance->pdev->dev,
7219 ioc->sgl[i].iov_len,
7220 &buf_handle, GFP_KERNEL);
7221 if (!kbuff_arr[i]) {
7222 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to alloc "
7223 "kernel SGL buffer for IOCTL\n");
7224 error = -ENOMEM;
7225 goto out;
7226 }
7227
7228 /*
7229 * We don't change the dma_coherent_mask, so
7230 * pci_alloc_consistent only returns 32bit addresses
7231 */
7232 if (instance->consistent_mask_64bit) {
7233 kern_sge64[i].phys_addr = cpu_to_le64(buf_handle);
7234 kern_sge64[i].length = cpu_to_le32(ioc->sgl[i].iov_len);
7235 } else {
7236 kern_sge32[i].phys_addr = cpu_to_le32(buf_handle);
7237 kern_sge32[i].length = cpu_to_le32(ioc->sgl[i].iov_len);
7238 }
7239
7240 /*
7241 * We created a kernel buffer corresponding to the
7242 * user buffer. Now copy in from the user buffer
7243 */
7244 if (copy_from_user(kbuff_arr[i], ioc->sgl[i].iov_base,
7245 (u32) (ioc->sgl[i].iov_len))) {
7246 error = -EFAULT;
7247 goto out;
7248 }
7249 }
7250
7251 if (ioc->sense_len) {
7252 sense = dma_alloc_coherent(&instance->pdev->dev, ioc->sense_len,
7253 &sense_handle, GFP_KERNEL);
7254 if (!sense) {
7255 error = -ENOMEM;
7256 goto out;
7257 }
7258
7259 sense_ptr =
7260 (unsigned long *) ((unsigned long)cmd->frame + ioc->sense_off);
7261 if (instance->consistent_mask_64bit)
7262 *sense_ptr = cpu_to_le64(sense_handle);
7263 else
7264 *sense_ptr = cpu_to_le32(sense_handle);
7265 }
7266
7267 /*
7268 * Set the sync_cmd flag so that the ISR knows not to complete this
7269 * cmd to the SCSI mid-layer
7270 */
7271 cmd->sync_cmd = 1;
7272 if (megasas_issue_blocked_cmd(instance, cmd, 0) == DCMD_NOT_FIRED) {
7273 cmd->sync_cmd = 0;
7274 dev_err(&instance->pdev->dev,
7275 "return -EBUSY from %s %d cmd 0x%x opcode 0x%x cmd->cmd_status_drv 0x%x\n",
7276 __func__, __LINE__, cmd->frame->hdr.cmd, opcode,
7277 cmd->cmd_status_drv);
7278 return -EBUSY;
7279 }
7280
7281 cmd->sync_cmd = 0;
7282
7283 if (instance->unload == 1) {
7284 dev_info(&instance->pdev->dev, "Driver unload is in progress "
7285 "don't submit data to application\n");
7286 goto out;
7287 }
7288 /*
7289 * copy out the kernel buffers to user buffers
7290 */
7291 for (i = 0; i < ioc->sge_count; i++) {
7292 if (copy_to_user(ioc->sgl[i].iov_base, kbuff_arr[i],
7293 ioc->sgl[i].iov_len)) {
7294 error = -EFAULT;
7295 goto out;
7296 }
7297 }
7298
7299 /*
7300 * copy out the sense
7301 */
7302 if (ioc->sense_len) {
7303 /*
7304 * sense_ptr points to the location that has the user
7305 * sense buffer address
7306 */
7307 sense_ptr = (unsigned long *) ((unsigned long)ioc->frame.raw +
7308 ioc->sense_off);
7309
7310 if (copy_to_user((void __user *)((unsigned long)
7311 get_unaligned((unsigned long *)sense_ptr)),
7312 sense, ioc->sense_len)) {
7313 dev_err(&instance->pdev->dev, "Failed to copy out to user "
7314 "sense data\n");
7315 error = -EFAULT;
7316 goto out;
7317 }
7318 }
7319
7320 /*
7321 * copy the status codes returned by the fw
7322 */
7323 if (copy_to_user(&user_ioc->frame.hdr.cmd_status,
7324 &cmd->frame->hdr.cmd_status, sizeof(u8))) {
7325 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Error copying out cmd_status\n");
7326 error = -EFAULT;
7327 }
7328
7329 out:
7330 if (sense) {
7331 dma_free_coherent(&instance->pdev->dev, ioc->sense_len,
7332 sense, sense_handle);
7333 }
7334
7335 for (i = 0; i < ioc->sge_count; i++) {
7336 if (kbuff_arr[i]) {
7337 if (instance->consistent_mask_64bit)
7338 dma_free_coherent(&instance->pdev->dev,
7339 le32_to_cpu(kern_sge64[i].length),
7340 kbuff_arr[i],
7341 le64_to_cpu(kern_sge64[i].phys_addr));
7342 else
7343 dma_free_coherent(&instance->pdev->dev,
7344 le32_to_cpu(kern_sge32[i].length),
7345 kbuff_arr[i],
7346 le32_to_cpu(kern_sge32[i].phys_addr));
7347 kbuff_arr[i] = NULL;
7348 }
7349 }
7350
7351 megasas_return_cmd(instance, cmd);
7352 return error;
7353 }
7354
7355 static int megasas_mgmt_ioctl_fw(struct file *file, unsigned long arg)
7356 {
7357 struct megasas_iocpacket __user *user_ioc =
7358 (struct megasas_iocpacket __user *)arg;
7359 struct megasas_iocpacket *ioc;
7360 struct megasas_instance *instance;
7361 int error;
7362
7363 ioc = memdup_user(user_ioc, sizeof(*ioc));
7364 if (IS_ERR(ioc))
7365 return PTR_ERR(ioc);
7366
7367 instance = megasas_lookup_instance(ioc->host_no);
7368 if (!instance) {
7369 error = -ENODEV;
7370 goto out_kfree_ioc;
7371 }
7372
7373 /* Block ioctls in VF mode */
7374 if (instance->requestorId && !allow_vf_ioctls) {
7375 error = -ENODEV;
7376 goto out_kfree_ioc;
7377 }
7378
7379 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
7380 dev_err(&instance->pdev->dev, "Controller in crit error\n");
7381 error = -ENODEV;
7382 goto out_kfree_ioc;
7383 }
7384
7385 if (instance->unload == 1) {
7386 error = -ENODEV;
7387 goto out_kfree_ioc;
7388 }
7389
7390 if (down_interruptible(&instance->ioctl_sem)) {
7391 error = -ERESTARTSYS;
7392 goto out_kfree_ioc;
7393 }
7394
7395 if (megasas_wait_for_adapter_operational(instance)) {
7396 error = -ENODEV;
7397 goto out_up;
7398 }
7399
7400 error = megasas_mgmt_fw_ioctl(instance, user_ioc, ioc);
7401 out_up:
7402 up(&instance->ioctl_sem);
7403
7404 out_kfree_ioc:
7405 kfree(ioc);
7406 return error;
7407 }
7408
7409 static int megasas_mgmt_ioctl_aen(struct file *file, unsigned long arg)
7410 {
7411 struct megasas_instance *instance;
7412 struct megasas_aen aen;
7413 int error;
7414
7415 if (file->private_data != file) {
7416 printk(KERN_DEBUG "megasas: fasync_helper was not "
7417 "called first\n");
7418 return -EINVAL;
7419 }
7420
7421 if (copy_from_user(&aen, (void __user *)arg, sizeof(aen)))
7422 return -EFAULT;
7423
7424 instance = megasas_lookup_instance(aen.host_no);
7425
7426 if (!instance)
7427 return -ENODEV;
7428
7429 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
7430 return -ENODEV;
7431 }
7432
7433 if (instance->unload == 1) {
7434 return -ENODEV;
7435 }
7436
7437 if (megasas_wait_for_adapter_operational(instance))
7438 return -ENODEV;
7439
7440 mutex_lock(&instance->reset_mutex);
7441 error = megasas_register_aen(instance, aen.seq_num,
7442 aen.class_locale_word);
7443 mutex_unlock(&instance->reset_mutex);
7444 return error;
7445 }
7446
7447 /**
7448 * megasas_mgmt_ioctl - char node ioctl entry point
7449 */
7450 static long
7451 megasas_mgmt_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
7452 {
7453 switch (cmd) {
7454 case MEGASAS_IOC_FIRMWARE:
7455 return megasas_mgmt_ioctl_fw(file, arg);
7456
7457 case MEGASAS_IOC_GET_AEN:
7458 return megasas_mgmt_ioctl_aen(file, arg);
7459 }
7460
7461 return -ENOTTY;
7462 }
7463
7464 #ifdef CONFIG_COMPAT
7465 static int megasas_mgmt_compat_ioctl_fw(struct file *file, unsigned long arg)
7466 {
7467 struct compat_megasas_iocpacket __user *cioc =
7468 (struct compat_megasas_iocpacket __user *)arg;
7469 struct megasas_iocpacket __user *ioc =
7470 compat_alloc_user_space(sizeof(struct megasas_iocpacket));
7471 int i;
7472 int error = 0;
7473 compat_uptr_t ptr;
7474 u32 local_sense_off;
7475 u32 local_sense_len;
7476 u32 user_sense_off;
7477
7478 if (clear_user(ioc, sizeof(*ioc)))
7479 return -EFAULT;
7480
7481 if (copy_in_user(&ioc->host_no, &cioc->host_no, sizeof(u16)) ||
7482 copy_in_user(&ioc->sgl_off, &cioc->sgl_off, sizeof(u32)) ||
7483 copy_in_user(&ioc->sense_off, &cioc->sense_off, sizeof(u32)) ||
7484 copy_in_user(&ioc->sense_len, &cioc->sense_len, sizeof(u32)) ||
7485 copy_in_user(ioc->frame.raw, cioc->frame.raw, 128) ||
7486 copy_in_user(&ioc->sge_count, &cioc->sge_count, sizeof(u32)))
7487 return -EFAULT;
7488
7489 /*
7490 * The sense_ptr is used in megasas_mgmt_fw_ioctl only when
7491 * sense_len is not null, so prepare the 64bit value under
7492 * the same condition.
7493 */
7494 if (get_user(local_sense_off, &ioc->sense_off) ||
7495 get_user(local_sense_len, &ioc->sense_len) ||
7496 get_user(user_sense_off, &cioc->sense_off))
7497 return -EFAULT;
7498
7499 if (local_sense_len) {
7500 void __user **sense_ioc_ptr =
7501 (void __user **)((u8 *)((unsigned long)&ioc->frame.raw) + local_sense_off);
7502 compat_uptr_t *sense_cioc_ptr =
7503 (compat_uptr_t *)(((unsigned long)&cioc->frame.raw) + user_sense_off);
7504 if (get_user(ptr, sense_cioc_ptr) ||
7505 put_user(compat_ptr(ptr), sense_ioc_ptr))
7506 return -EFAULT;
7507 }
7508
7509 for (i = 0; i < MAX_IOCTL_SGE; i++) {
7510 if (get_user(ptr, &cioc->sgl[i].iov_base) ||
7511 put_user(compat_ptr(ptr), &ioc->sgl[i].iov_base) ||
7512 copy_in_user(&ioc->sgl[i].iov_len,
7513 &cioc->sgl[i].iov_len, sizeof(compat_size_t)))
7514 return -EFAULT;
7515 }
7516
7517 error = megasas_mgmt_ioctl_fw(file, (unsigned long)ioc);
7518
7519 if (copy_in_user(&cioc->frame.hdr.cmd_status,
7520 &ioc->frame.hdr.cmd_status, sizeof(u8))) {
7521 printk(KERN_DEBUG "megasas: error copy_in_user cmd_status\n");
7522 return -EFAULT;
7523 }
7524 return error;
7525 }
7526
7527 static long
7528 megasas_mgmt_compat_ioctl(struct file *file, unsigned int cmd,
7529 unsigned long arg)
7530 {
7531 switch (cmd) {
7532 case MEGASAS_IOC_FIRMWARE32:
7533 return megasas_mgmt_compat_ioctl_fw(file, arg);
7534 case MEGASAS_IOC_GET_AEN:
7535 return megasas_mgmt_ioctl_aen(file, arg);
7536 }
7537
7538 return -ENOTTY;
7539 }
7540 #endif
7541
7542 /*
7543 * File operations structure for management interface
7544 */
7545 static const struct file_operations megasas_mgmt_fops = {
7546 .owner = THIS_MODULE,
7547 .open = megasas_mgmt_open,
7548 .fasync = megasas_mgmt_fasync,
7549 .unlocked_ioctl = megasas_mgmt_ioctl,
7550 .poll = megasas_mgmt_poll,
7551 #ifdef CONFIG_COMPAT
7552 .compat_ioctl = megasas_mgmt_compat_ioctl,
7553 #endif
7554 .llseek = noop_llseek,
7555 };
7556
7557 /*
7558 * PCI hotplug support registration structure
7559 */
7560 static struct pci_driver megasas_pci_driver = {
7561
7562 .name = "megaraid_sas",
7563 .id_table = megasas_pci_table,
7564 .probe = megasas_probe_one,
7565 .remove = megasas_detach_one,
7566 .suspend = megasas_suspend,
7567 .resume = megasas_resume,
7568 .shutdown = megasas_shutdown,
7569 };
7570
7571 /*
7572 * Sysfs driver attributes
7573 */
7574 static ssize_t version_show(struct device_driver *dd, char *buf)
7575 {
7576 return snprintf(buf, strlen(MEGASAS_VERSION) + 2, "%s\n",
7577 MEGASAS_VERSION);
7578 }
7579 static DRIVER_ATTR_RO(version);
7580
7581 static ssize_t release_date_show(struct device_driver *dd, char *buf)
7582 {
7583 return snprintf(buf, strlen(MEGASAS_RELDATE) + 2, "%s\n",
7584 MEGASAS_RELDATE);
7585 }
7586 static DRIVER_ATTR_RO(release_date);
7587
7588 static ssize_t support_poll_for_event_show(struct device_driver *dd, char *buf)
7589 {
7590 return sprintf(buf, "%u\n", support_poll_for_event);
7591 }
7592 static DRIVER_ATTR_RO(support_poll_for_event);
7593
7594 static ssize_t support_device_change_show(struct device_driver *dd, char *buf)
7595 {
7596 return sprintf(buf, "%u\n", support_device_change);
7597 }
7598 static DRIVER_ATTR_RO(support_device_change);
7599
7600 static ssize_t dbg_lvl_show(struct device_driver *dd, char *buf)
7601 {
7602 return sprintf(buf, "%u\n", megasas_dbg_lvl);
7603 }
7604
7605 static ssize_t dbg_lvl_store(struct device_driver *dd, const char *buf,
7606 size_t count)
7607 {
7608 int retval = count;
7609
7610 if (sscanf(buf, "%u", &megasas_dbg_lvl) < 1) {
7611 printk(KERN_ERR "megasas: could not set dbg_lvl\n");
7612 retval = -EINVAL;
7613 }
7614 return retval;
7615 }
7616 static DRIVER_ATTR_RW(dbg_lvl);
7617
7618 static ssize_t
7619 support_nvme_encapsulation_show(struct device_driver *dd, char *buf)
7620 {
7621 return sprintf(buf, "%u\n", support_nvme_encapsulation);
7622 }
7623
7624 static DRIVER_ATTR_RO(support_nvme_encapsulation);
7625
7626 static inline void megasas_remove_scsi_device(struct scsi_device *sdev)
7627 {
7628 sdev_printk(KERN_INFO, sdev, "SCSI device is removed\n");
7629 scsi_remove_device(sdev);
7630 scsi_device_put(sdev);
7631 }
7632
7633 static void
7634 megasas_aen_polling(struct work_struct *work)
7635 {
7636 struct megasas_aen_event *ev =
7637 container_of(work, struct megasas_aen_event, hotplug_work.work);
7638 struct megasas_instance *instance = ev->instance;
7639 union megasas_evt_class_locale class_locale;
7640 struct Scsi_Host *host;
7641 struct scsi_device *sdev1;
7642 u16 pd_index = 0;
7643 u16 ld_index = 0;
7644 int i, j, doscan = 0;
7645 u32 seq_num, wait_time = MEGASAS_RESET_WAIT_TIME;
7646 int error;
7647 u8 dcmd_ret = DCMD_SUCCESS;
7648
7649 if (!instance) {
7650 printk(KERN_ERR "invalid instance!\n");
7651 kfree(ev);
7652 return;
7653 }
7654
7655 /* Adjust event workqueue thread wait time for VF mode */
7656 if (instance->requestorId)
7657 wait_time = MEGASAS_ROUTINE_WAIT_TIME_VF;
7658
7659 /* Don't run the event workqueue thread if OCR is running */
7660 mutex_lock(&instance->reset_mutex);
7661
7662 instance->ev = NULL;
7663 host = instance->host;
7664 if (instance->evt_detail) {
7665 megasas_decode_evt(instance);
7666
7667 switch (le32_to_cpu(instance->evt_detail->code)) {
7668
7669 case MR_EVT_PD_INSERTED:
7670 case MR_EVT_PD_REMOVED:
7671 dcmd_ret = megasas_get_pd_list(instance);
7672 if (dcmd_ret == DCMD_SUCCESS)
7673 doscan = SCAN_PD_CHANNEL;
7674 break;
7675
7676 case MR_EVT_LD_OFFLINE:
7677 case MR_EVT_CFG_CLEARED:
7678 case MR_EVT_LD_DELETED:
7679 case MR_EVT_LD_CREATED:
7680 if (!instance->requestorId ||
7681 (instance->requestorId && megasas_get_ld_vf_affiliation(instance, 0)))
7682 dcmd_ret = megasas_ld_list_query(instance, MR_LD_QUERY_TYPE_EXPOSED_TO_HOST);
7683
7684 if (dcmd_ret == DCMD_SUCCESS)
7685 doscan = SCAN_VD_CHANNEL;
7686
7687 break;
7688
7689 case MR_EVT_CTRL_HOST_BUS_SCAN_REQUESTED:
7690 case MR_EVT_FOREIGN_CFG_IMPORTED:
7691 case MR_EVT_LD_STATE_CHANGE:
7692 dcmd_ret = megasas_get_pd_list(instance);
7693
7694 if (dcmd_ret != DCMD_SUCCESS)
7695 break;
7696
7697 if (!instance->requestorId ||
7698 (instance->requestorId && megasas_get_ld_vf_affiliation(instance, 0)))
7699 dcmd_ret = megasas_ld_list_query(instance, MR_LD_QUERY_TYPE_EXPOSED_TO_HOST);
7700
7701 if (dcmd_ret != DCMD_SUCCESS)
7702 break;
7703
7704 doscan = SCAN_VD_CHANNEL | SCAN_PD_CHANNEL;
7705 dev_info(&instance->pdev->dev, "scanning for scsi%d...\n",
7706 instance->host->host_no);
7707 break;
7708
7709 case MR_EVT_CTRL_PROP_CHANGED:
7710 dcmd_ret = megasas_get_ctrl_info(instance);
7711 break;
7712 default:
7713 doscan = 0;
7714 break;
7715 }
7716 } else {
7717 dev_err(&instance->pdev->dev, "invalid evt_detail!\n");
7718 mutex_unlock(&instance->reset_mutex);
7719 kfree(ev);
7720 return;
7721 }
7722
7723 mutex_unlock(&instance->reset_mutex);
7724
7725 if (doscan & SCAN_PD_CHANNEL) {
7726 for (i = 0; i < MEGASAS_MAX_PD_CHANNELS; i++) {
7727 for (j = 0; j < MEGASAS_MAX_DEV_PER_CHANNEL; j++) {
7728 pd_index = i*MEGASAS_MAX_DEV_PER_CHANNEL + j;
7729 sdev1 = scsi_device_lookup(host, i, j, 0);
7730 if (instance->pd_list[pd_index].driveState ==
7731 MR_PD_STATE_SYSTEM) {
7732 if (!sdev1)
7733 scsi_add_device(host, i, j, 0);
7734 else
7735 scsi_device_put(sdev1);
7736 } else {
7737 if (sdev1)
7738 megasas_remove_scsi_device(sdev1);
7739 }
7740 }
7741 }
7742 }
7743
7744 if (doscan & SCAN_VD_CHANNEL) {
7745 for (i = 0; i < MEGASAS_MAX_LD_CHANNELS; i++) {
7746 for (j = 0; j < MEGASAS_MAX_DEV_PER_CHANNEL; j++) {
7747 ld_index = (i * MEGASAS_MAX_DEV_PER_CHANNEL) + j;
7748 sdev1 = scsi_device_lookup(host, MEGASAS_MAX_PD_CHANNELS + i, j, 0);
7749 if (instance->ld_ids[ld_index] != 0xff) {
7750 if (!sdev1)
7751 scsi_add_device(host, MEGASAS_MAX_PD_CHANNELS + i, j, 0);
7752 else
7753 scsi_device_put(sdev1);
7754 } else {
7755 if (sdev1)
7756 megasas_remove_scsi_device(sdev1);
7757 }
7758 }
7759 }
7760 }
7761
7762 if (dcmd_ret == DCMD_SUCCESS)
7763 seq_num = le32_to_cpu(instance->evt_detail->seq_num) + 1;
7764 else
7765 seq_num = instance->last_seq_num;
7766
7767 /* Register AEN with FW for latest sequence number plus 1 */
7768 class_locale.members.reserved = 0;
7769 class_locale.members.locale = MR_EVT_LOCALE_ALL;
7770 class_locale.members.class = MR_EVT_CLASS_DEBUG;
7771
7772 if (instance->aen_cmd != NULL) {
7773 kfree(ev);
7774 return;
7775 }
7776
7777 mutex_lock(&instance->reset_mutex);
7778 error = megasas_register_aen(instance, seq_num,
7779 class_locale.word);
7780 if (error)
7781 dev_err(&instance->pdev->dev,
7782 "register aen failed error %x\n", error);
7783
7784 mutex_unlock(&instance->reset_mutex);
7785 kfree(ev);
7786 }
7787
7788 /**
7789 * megasas_init - Driver load entry point
7790 */
7791 static int __init megasas_init(void)
7792 {
7793 int rval;
7794
7795 /*
7796 * Booted in kdump kernel, minimize memory footprints by
7797 * disabling few features
7798 */
7799 if (reset_devices) {
7800 msix_vectors = 1;
7801 rdpq_enable = 0;
7802 dual_qdepth_disable = 1;
7803 }
7804
7805 /*
7806 * Announce driver version and other information
7807 */
7808 pr_info("megasas: %s\n", MEGASAS_VERSION);
7809
7810 spin_lock_init(&poll_aen_lock);
7811
7812 support_poll_for_event = 2;
7813 support_device_change = 1;
7814 support_nvme_encapsulation = true;
7815
7816 memset(&megasas_mgmt_info, 0, sizeof(megasas_mgmt_info));
7817
7818 /*
7819 * Register character device node
7820 */
7821 rval = register_chrdev(0, "megaraid_sas_ioctl", &megasas_mgmt_fops);
7822
7823 if (rval < 0) {
7824 printk(KERN_DEBUG "megasas: failed to open device node\n");
7825 return rval;
7826 }
7827
7828 megasas_mgmt_majorno = rval;
7829
7830 /*
7831 * Register ourselves as PCI hotplug module
7832 */
7833 rval = pci_register_driver(&megasas_pci_driver);
7834
7835 if (rval) {
7836 printk(KERN_DEBUG "megasas: PCI hotplug registration failed \n");
7837 goto err_pcidrv;
7838 }
7839
7840 rval = driver_create_file(&megasas_pci_driver.driver,
7841 &driver_attr_version);
7842 if (rval)
7843 goto err_dcf_attr_ver;
7844
7845 rval = driver_create_file(&megasas_pci_driver.driver,
7846 &driver_attr_release_date);
7847 if (rval)
7848 goto err_dcf_rel_date;
7849
7850 rval = driver_create_file(&megasas_pci_driver.driver,
7851 &driver_attr_support_poll_for_event);
7852 if (rval)
7853 goto err_dcf_support_poll_for_event;
7854
7855 rval = driver_create_file(&megasas_pci_driver.driver,
7856 &driver_attr_dbg_lvl);
7857 if (rval)
7858 goto err_dcf_dbg_lvl;
7859 rval = driver_create_file(&megasas_pci_driver.driver,
7860 &driver_attr_support_device_change);
7861 if (rval)
7862 goto err_dcf_support_device_change;
7863
7864 rval = driver_create_file(&megasas_pci_driver.driver,
7865 &driver_attr_support_nvme_encapsulation);
7866 if (rval)
7867 goto err_dcf_support_nvme_encapsulation;
7868
7869 return rval;
7870
7871 err_dcf_support_nvme_encapsulation:
7872 driver_remove_file(&megasas_pci_driver.driver,
7873 &driver_attr_support_device_change);
7874
7875 err_dcf_support_device_change:
7876 driver_remove_file(&megasas_pci_driver.driver,
7877 &driver_attr_dbg_lvl);
7878 err_dcf_dbg_lvl:
7879 driver_remove_file(&megasas_pci_driver.driver,
7880 &driver_attr_support_poll_for_event);
7881 err_dcf_support_poll_for_event:
7882 driver_remove_file(&megasas_pci_driver.driver,
7883 &driver_attr_release_date);
7884 err_dcf_rel_date:
7885 driver_remove_file(&megasas_pci_driver.driver, &driver_attr_version);
7886 err_dcf_attr_ver:
7887 pci_unregister_driver(&megasas_pci_driver);
7888 err_pcidrv:
7889 unregister_chrdev(megasas_mgmt_majorno, "megaraid_sas_ioctl");
7890 return rval;
7891 }
7892
7893 /**
7894 * megasas_exit - Driver unload entry point
7895 */
7896 static void __exit megasas_exit(void)
7897 {
7898 driver_remove_file(&megasas_pci_driver.driver,
7899 &driver_attr_dbg_lvl);
7900 driver_remove_file(&megasas_pci_driver.driver,
7901 &driver_attr_support_poll_for_event);
7902 driver_remove_file(&megasas_pci_driver.driver,
7903 &driver_attr_support_device_change);
7904 driver_remove_file(&megasas_pci_driver.driver,
7905 &driver_attr_release_date);
7906 driver_remove_file(&megasas_pci_driver.driver, &driver_attr_version);
7907 driver_remove_file(&megasas_pci_driver.driver,
7908 &driver_attr_support_nvme_encapsulation);
7909
7910 pci_unregister_driver(&megasas_pci_driver);
7911 unregister_chrdev(megasas_mgmt_majorno, "megaraid_sas_ioctl");
7912 }
7913
7914 module_init(megasas_init);
7915 module_exit(megasas_exit);
Linux with added FPC-III support