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WIP FPC-III support
[linux/fpc-iii.git] / drivers / scsi / megaraid / megaraid_sas_base.c
blobaf192096a82b172ec188d83e2619f8da4216f21d
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Linux MegaRAID driver for SAS based RAID controllers
4 *
5 * Copyright (c) 2003-2013 LSI Corporation
6 * Copyright (c) 2013-2016 Avago Technologies
7 * Copyright (c) 2016-2018 Broadcom Inc.
8 *
9 * Authors: Broadcom Inc.
10 * Sreenivas Bagalkote
11 * Sumant Patro
12 * Bo Yang
13 * Adam Radford
14 * Kashyap Desai <kashyap.desai@broadcom.com>
15 * Sumit Saxena <sumit.saxena@broadcom.com>
16 *
17 * Send feedback to: megaraidlinux.pdl@broadcom.com
18 */
19
20 #include <linux/kernel.h>
21 #include <linux/types.h>
22 #include <linux/pci.h>
23 #include <linux/list.h>
24 #include <linux/moduleparam.h>
25 #include <linux/module.h>
26 #include <linux/spinlock.h>
27 #include <linux/interrupt.h>
28 #include <linux/delay.h>
29 #include <linux/uio.h>
30 #include <linux/slab.h>
31 #include <linux/uaccess.h>
32 #include <asm/unaligned.h>
33 #include <linux/fs.h>
34 #include <linux/compat.h>
35 #include <linux/blkdev.h>
36 #include <linux/mutex.h>
37 #include <linux/poll.h>
38 #include <linux/vmalloc.h>
39 #include <linux/irq_poll.h>
40 #include <linux/blk-mq-pci.h>
41
42 #include <scsi/scsi.h>
43 #include <scsi/scsi_cmnd.h>
44 #include <scsi/scsi_device.h>
45 #include <scsi/scsi_host.h>
46 #include <scsi/scsi_tcq.h>
47 #include <scsi/scsi_dbg.h>
48 #include "megaraid_sas_fusion.h"
49 #include "megaraid_sas.h"
50
51 /*
52 * Number of sectors per IO command
53 * Will be set in megasas_init_mfi if user does not provide
54 */
55 static unsigned int max_sectors;
56 module_param_named(max_sectors, max_sectors, int, 0444);
57 MODULE_PARM_DESC(max_sectors,
58 "Maximum number of sectors per IO command");
59
60 static int msix_disable;
61 module_param(msix_disable, int, 0444);
62 MODULE_PARM_DESC(msix_disable, "Disable MSI-X interrupt handling. Default: 0");
63
64 static unsigned int msix_vectors;
65 module_param(msix_vectors, int, 0444);
66 MODULE_PARM_DESC(msix_vectors, "MSI-X max vector count. Default: Set by FW");
67
68 static int allow_vf_ioctls;
69 module_param(allow_vf_ioctls, int, 0444);
70 MODULE_PARM_DESC(allow_vf_ioctls, "Allow ioctls in SR-IOV VF mode. Default: 0");
71
72 static unsigned int throttlequeuedepth = MEGASAS_THROTTLE_QUEUE_DEPTH;
73 module_param(throttlequeuedepth, int, 0444);
74 MODULE_PARM_DESC(throttlequeuedepth,
75 "Adapter queue depth when throttled due to I/O timeout. Default: 16");
76
77 unsigned int resetwaittime = MEGASAS_RESET_WAIT_TIME;
78 module_param(resetwaittime, int, 0444);
79 MODULE_PARM_DESC(resetwaittime, "Wait time in (1-180s) after I/O timeout before resetting adapter. Default: 180s");
80
81 static int smp_affinity_enable = 1;
82 module_param(smp_affinity_enable, int, 0444);
83 MODULE_PARM_DESC(smp_affinity_enable, "SMP affinity feature enable/disable Default: enable(1)");
84
85 static int rdpq_enable = 1;
86 module_param(rdpq_enable, int, 0444);
87 MODULE_PARM_DESC(rdpq_enable, "Allocate reply queue in chunks for large queue depth enable/disable Default: enable(1)");
88
89 unsigned int dual_qdepth_disable;
90 module_param(dual_qdepth_disable, int, 0444);
91 MODULE_PARM_DESC(dual_qdepth_disable, "Disable dual queue depth feature. Default: 0");
92
93 static unsigned int scmd_timeout = MEGASAS_DEFAULT_CMD_TIMEOUT;
94 module_param(scmd_timeout, int, 0444);
95 MODULE_PARM_DESC(scmd_timeout, "scsi command timeout (10-90s), default 90s. See megasas_reset_timer.");
96
97 int perf_mode = -1;
98 module_param(perf_mode, int, 0444);
99 MODULE_PARM_DESC(perf_mode, "Performance mode (only for Aero adapters), options:\n\t\t"
100 "0 - balanced: High iops and low latency queues are allocated &\n\t\t"
101 "interrupt coalescing is enabled only on high iops queues\n\t\t"
102 "1 - iops: High iops queues are not allocated &\n\t\t"
103 "interrupt coalescing is enabled on all queues\n\t\t"
104 "2 - latency: High iops queues are not allocated &\n\t\t"
105 "interrupt coalescing is disabled on all queues\n\t\t"
106 "default mode is 'balanced'"
107 );
108
109 int event_log_level = MFI_EVT_CLASS_CRITICAL;
110 module_param(event_log_level, int, 0644);
111 MODULE_PARM_DESC(event_log_level, "Asynchronous event logging level- range is: -2(CLASS_DEBUG) to 4(CLASS_DEAD), Default: 2(CLASS_CRITICAL)");
112
113 unsigned int enable_sdev_max_qd;
114 module_param(enable_sdev_max_qd, int, 0444);
115 MODULE_PARM_DESC(enable_sdev_max_qd, "Enable sdev max qd as can_queue. Default: 0");
116
117 int host_tagset_enable = 1;
118 module_param(host_tagset_enable, int, 0444);
119 MODULE_PARM_DESC(host_tagset_enable, "Shared host tagset enable/disable Default: enable(1)");
120
121 MODULE_LICENSE("GPL");
122 MODULE_VERSION(MEGASAS_VERSION);
123 MODULE_AUTHOR("megaraidlinux.pdl@broadcom.com");
124 MODULE_DESCRIPTION("Broadcom MegaRAID SAS Driver");
125
126 int megasas_transition_to_ready(struct megasas_instance *instance, int ocr);
127 static int megasas_get_pd_list(struct megasas_instance *instance);
128 static int megasas_ld_list_query(struct megasas_instance *instance,
129 u8 query_type);
130 static int megasas_issue_init_mfi(struct megasas_instance *instance);
131 static int megasas_register_aen(struct megasas_instance *instance,
132 u32 seq_num, u32 class_locale_word);
133 static void megasas_get_pd_info(struct megasas_instance *instance,
134 struct scsi_device *sdev);
135
136 /*
137 * PCI ID table for all supported controllers
138 */
139 static struct pci_device_id megasas_pci_table[] = {
140
141 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1064R)},
142 /* xscale IOP */
143 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078R)},
144 /* ppc IOP */
145 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078DE)},
146 /* ppc IOP */
147 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078GEN2)},
148 /* gen2*/
149 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0079GEN2)},
150 /* gen2*/
151 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0073SKINNY)},
152 /* skinny*/
153 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0071SKINNY)},
154 /* skinny*/
155 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_VERDE_ZCR)},
156 /* xscale IOP, vega */
157 {PCI_DEVICE(PCI_VENDOR_ID_DELL, PCI_DEVICE_ID_DELL_PERC5)},
158 /* xscale IOP */
159 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FUSION)},
160 /* Fusion */
161 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_PLASMA)},
162 /* Plasma */
163 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_INVADER)},
164 /* Invader */
165 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FURY)},
166 /* Fury */
167 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_INTRUDER)},
168 /* Intruder */
169 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_INTRUDER_24)},
170 /* Intruder 24 port*/
171 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_CUTLASS_52)},
172 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_CUTLASS_53)},
173 /* VENTURA */
174 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_VENTURA)},
175 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_CRUSADER)},
176 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_HARPOON)},
177 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_TOMCAT)},
178 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_VENTURA_4PORT)},
179 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_CRUSADER_4PORT)},
180 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E1)},
181 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E2)},
182 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E5)},
183 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E6)},
184 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E0)},
185 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E3)},
186 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E4)},
187 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E7)},
188 {}
189 };
190
191 MODULE_DEVICE_TABLE(pci, megasas_pci_table);
192
193 static int megasas_mgmt_majorno;
194 struct megasas_mgmt_info megasas_mgmt_info;
195 static struct fasync_struct *megasas_async_queue;
196 static DEFINE_MUTEX(megasas_async_queue_mutex);
197
198 static int megasas_poll_wait_aen;
199 static DECLARE_WAIT_QUEUE_HEAD(megasas_poll_wait);
200 static u32 support_poll_for_event;
201 u32 megasas_dbg_lvl;
202 static u32 support_device_change;
203 static bool support_nvme_encapsulation;
204 static bool support_pci_lane_margining;
205
206 /* define lock for aen poll */
207 static spinlock_t poll_aen_lock;
208
209 extern struct dentry *megasas_debugfs_root;
210
211 void
212 megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd,
213 u8 alt_status);
214 static u32
215 megasas_read_fw_status_reg_gen2(struct megasas_instance *instance);
216 static int
217 megasas_adp_reset_gen2(struct megasas_instance *instance,
218 struct megasas_register_set __iomem *reg_set);
219 static irqreturn_t megasas_isr(int irq, void *devp);
220 static u32
221 megasas_init_adapter_mfi(struct megasas_instance *instance);
222 u32
223 megasas_build_and_issue_cmd(struct megasas_instance *instance,
224 struct scsi_cmnd *scmd);
225 static void megasas_complete_cmd_dpc(unsigned long instance_addr);
226 int
227 wait_and_poll(struct megasas_instance *instance, struct megasas_cmd *cmd,
228 int seconds);
229 void megasas_fusion_ocr_wq(struct work_struct *work);
230 static int megasas_get_ld_vf_affiliation(struct megasas_instance *instance,
231 int initial);
232 static int
233 megasas_set_dma_mask(struct megasas_instance *instance);
234 static int
235 megasas_alloc_ctrl_mem(struct megasas_instance *instance);
236 static inline void
237 megasas_free_ctrl_mem(struct megasas_instance *instance);
238 static inline int
239 megasas_alloc_ctrl_dma_buffers(struct megasas_instance *instance);
240 static inline void
241 megasas_free_ctrl_dma_buffers(struct megasas_instance *instance);
242 static inline void
243 megasas_init_ctrl_params(struct megasas_instance *instance);
244
245 u32 megasas_readl(struct megasas_instance *instance,
246 const volatile void __iomem *addr)
247 {
248 u32 i = 0, ret_val;
249 /*
250 * Due to a HW errata in Aero controllers, reads to certain
251 * Fusion registers could intermittently return all zeroes.
252 * This behavior is transient in nature and subsequent reads will
253 * return valid value. As a workaround in driver, retry readl for
254 * upto three times until a non-zero value is read.
255 */
256 if (instance->adapter_type == AERO_SERIES) {
257 do {
258 ret_val = readl(addr);
259 i++;
260 } while (ret_val == 0 && i < 3);
261 return ret_val;
262 } else {
263 return readl(addr);
264 }
265 }
266
267 /**
268 * megasas_set_dma_settings - Populate DMA address, length and flags for DCMDs
269 * @instance: Adapter soft state
270 * @dcmd: DCMD frame inside MFI command
271 * @dma_addr: DMA address of buffer to be passed to FW
272 * @dma_len: Length of DMA buffer to be passed to FW
273 * @return: void
274 */
275 void megasas_set_dma_settings(struct megasas_instance *instance,
276 struct megasas_dcmd_frame *dcmd,
277 dma_addr_t dma_addr, u32 dma_len)
278 {
279 if (instance->consistent_mask_64bit) {
280 dcmd->sgl.sge64[0].phys_addr = cpu_to_le64(dma_addr);
281 dcmd->sgl.sge64[0].length = cpu_to_le32(dma_len);
282 dcmd->flags = cpu_to_le16(dcmd->flags | MFI_FRAME_SGL64);
283
284 } else {
285 dcmd->sgl.sge32[0].phys_addr =
286 cpu_to_le32(lower_32_bits(dma_addr));
287 dcmd->sgl.sge32[0].length = cpu_to_le32(dma_len);
288 dcmd->flags = cpu_to_le16(dcmd->flags);
289 }
290 }
291
292 static void
293 megasas_issue_dcmd(struct megasas_instance *instance, struct megasas_cmd *cmd)
294 {
295 instance->instancet->fire_cmd(instance,
296 cmd->frame_phys_addr, 0, instance->reg_set);
297 return;
298 }
299
300 /**
301 * megasas_get_cmd - Get a command from the free pool
302 * @instance: Adapter soft state
303 *
304 * Returns a free command from the pool
305 */
306 struct megasas_cmd *megasas_get_cmd(struct megasas_instance
307 *instance)
308 {
309 unsigned long flags;
310 struct megasas_cmd *cmd = NULL;
311
312 spin_lock_irqsave(&instance->mfi_pool_lock, flags);
313
314 if (!list_empty(&instance->cmd_pool)) {
315 cmd = list_entry((&instance->cmd_pool)->next,
316 struct megasas_cmd, list);
317 list_del_init(&cmd->list);
318 } else {
319 dev_err(&instance->pdev->dev, "Command pool empty!\n");
320 }
321
322 spin_unlock_irqrestore(&instance->mfi_pool_lock, flags);
323 return cmd;
324 }
325
326 /**
327 * megasas_return_cmd - Return a cmd to free command pool
328 * @instance: Adapter soft state
329 * @cmd: Command packet to be returned to free command pool
330 */
331 void
332 megasas_return_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd)
333 {
334 unsigned long flags;
335 u32 blk_tags;
336 struct megasas_cmd_fusion *cmd_fusion;
337 struct fusion_context *fusion = instance->ctrl_context;
338
339 /* This flag is used only for fusion adapter.
340 * Wait for Interrupt for Polled mode DCMD
341 */
342 if (cmd->flags & DRV_DCMD_POLLED_MODE)
343 return;
344
345 spin_lock_irqsave(&instance->mfi_pool_lock, flags);
346
347 if (fusion) {
348 blk_tags = instance->max_scsi_cmds + cmd->index;
349 cmd_fusion = fusion->cmd_list[blk_tags];
350 megasas_return_cmd_fusion(instance, cmd_fusion);
351 }
352 cmd->scmd = NULL;
353 cmd->frame_count = 0;
354 cmd->flags = 0;
355 memset(cmd->frame, 0, instance->mfi_frame_size);
356 cmd->frame->io.context = cpu_to_le32(cmd->index);
357 if (!fusion && reset_devices)
358 cmd->frame->hdr.cmd = MFI_CMD_INVALID;
359 list_add(&cmd->list, (&instance->cmd_pool)->next);
360
361 spin_unlock_irqrestore(&instance->mfi_pool_lock, flags);
362
363 }
364
365 static const char *
366 format_timestamp(uint32_t timestamp)
367 {
368 static char buffer[32];
369
370 if ((timestamp & 0xff000000) == 0xff000000)
371 snprintf(buffer, sizeof(buffer), "boot + %us", timestamp &
372 0x00ffffff);
373 else
374 snprintf(buffer, sizeof(buffer), "%us", timestamp);
375 return buffer;
376 }
377
378 static const char *
379 format_class(int8_t class)
380 {
381 static char buffer[6];
382
383 switch (class) {
384 case MFI_EVT_CLASS_DEBUG:
385 return "debug";
386 case MFI_EVT_CLASS_PROGRESS:
387 return "progress";
388 case MFI_EVT_CLASS_INFO:
389 return "info";
390 case MFI_EVT_CLASS_WARNING:
391 return "WARN";
392 case MFI_EVT_CLASS_CRITICAL:
393 return "CRIT";
394 case MFI_EVT_CLASS_FATAL:
395 return "FATAL";
396 case MFI_EVT_CLASS_DEAD:
397 return "DEAD";
398 default:
399 snprintf(buffer, sizeof(buffer), "%d", class);
400 return buffer;
401 }
402 }
403
404 /**
405 * megasas_decode_evt: Decode FW AEN event and print critical event
406 * for information.
407 * @instance: Adapter soft state
408 */
409 static void
410 megasas_decode_evt(struct megasas_instance *instance)
411 {
412 struct megasas_evt_detail *evt_detail = instance->evt_detail;
413 union megasas_evt_class_locale class_locale;
414 class_locale.word = le32_to_cpu(evt_detail->cl.word);
415
416 if ((event_log_level < MFI_EVT_CLASS_DEBUG) ||
417 (event_log_level > MFI_EVT_CLASS_DEAD)) {
418 printk(KERN_WARNING "megaraid_sas: provided event log level is out of range, setting it to default 2(CLASS_CRITICAL), permissible range is: -2 to 4\n");
419 event_log_level = MFI_EVT_CLASS_CRITICAL;
420 }
421
422 if (class_locale.members.class >= event_log_level)
423 dev_info(&instance->pdev->dev, "%d (%s/0x%04x/%s) - %s\n",
424 le32_to_cpu(evt_detail->seq_num),
425 format_timestamp(le32_to_cpu(evt_detail->time_stamp)),
426 (class_locale.members.locale),
427 format_class(class_locale.members.class),
428 evt_detail->description);
429 }
430
431 /*
432 * The following functions are defined for xscale
433 * (deviceid : 1064R, PERC5) controllers
434 */
435
436 /**
437 * megasas_enable_intr_xscale - Enables interrupts
438 * @instance: Adapter soft state
439 */
440 static inline void
441 megasas_enable_intr_xscale(struct megasas_instance *instance)
442 {
443 struct megasas_register_set __iomem *regs;
444
445 regs = instance->reg_set;
446 writel(0, &(regs)->outbound_intr_mask);
447
448 /* Dummy readl to force pci flush */
449 readl(&regs->outbound_intr_mask);
450 }
451
452 /**
453 * megasas_disable_intr_xscale -Disables interrupt
454 * @instance: Adapter soft state
455 */
456 static inline void
457 megasas_disable_intr_xscale(struct megasas_instance *instance)
458 {
459 struct megasas_register_set __iomem *regs;
460 u32 mask = 0x1f;
461
462 regs = instance->reg_set;
463 writel(mask, &regs->outbound_intr_mask);
464 /* Dummy readl to force pci flush */
465 readl(&regs->outbound_intr_mask);
466 }
467
468 /**
469 * megasas_read_fw_status_reg_xscale - returns the current FW status value
470 * @instance: Adapter soft state
471 */
472 static u32
473 megasas_read_fw_status_reg_xscale(struct megasas_instance *instance)
474 {
475 return readl(&instance->reg_set->outbound_msg_0);
476 }
477 /**
478 * megasas_clear_interrupt_xscale - Check & clear interrupt
479 * @instance: Adapter soft state
480 */
481 static int
482 megasas_clear_intr_xscale(struct megasas_instance *instance)
483 {
484 u32 status;
485 u32 mfiStatus = 0;
486 struct megasas_register_set __iomem *regs;
487 regs = instance->reg_set;
488
489 /*
490 * Check if it is our interrupt
491 */
492 status = readl(&regs->outbound_intr_status);
493
494 if (status & MFI_OB_INTR_STATUS_MASK)
495 mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE;
496 if (status & MFI_XSCALE_OMR0_CHANGE_INTERRUPT)
497 mfiStatus |= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE;
498
499 /*
500 * Clear the interrupt by writing back the same value
501 */
502 if (mfiStatus)
503 writel(status, &regs->outbound_intr_status);
504
505 /* Dummy readl to force pci flush */
506 readl(&regs->outbound_intr_status);
507
508 return mfiStatus;
509 }
510
511 /**
512 * megasas_fire_cmd_xscale - Sends command to the FW
513 * @instance: Adapter soft state
514 * @frame_phys_addr : Physical address of cmd
515 * @frame_count : Number of frames for the command
516 * @regs : MFI register set
517 */
518 static inline void
519 megasas_fire_cmd_xscale(struct megasas_instance *instance,
520 dma_addr_t frame_phys_addr,
521 u32 frame_count,
522 struct megasas_register_set __iomem *regs)
523 {
524 unsigned long flags;
525
526 spin_lock_irqsave(&instance->hba_lock, flags);
527 writel((frame_phys_addr >> 3)|(frame_count),
528 &(regs)->inbound_queue_port);
529 spin_unlock_irqrestore(&instance->hba_lock, flags);
530 }
531
532 /**
533 * megasas_adp_reset_xscale - For controller reset
534 * @instance: Adapter soft state
535 * @regs: MFI register set
536 */
537 static int
538 megasas_adp_reset_xscale(struct megasas_instance *instance,
539 struct megasas_register_set __iomem *regs)
540 {
541 u32 i;
542 u32 pcidata;
543
544 writel(MFI_ADP_RESET, &regs->inbound_doorbell);
545
546 for (i = 0; i < 3; i++)
547 msleep(1000); /* sleep for 3 secs */
548 pcidata = 0;
549 pci_read_config_dword(instance->pdev, MFI_1068_PCSR_OFFSET, &pcidata);
550 dev_notice(&instance->pdev->dev, "pcidata = %x\n", pcidata);
551 if (pcidata & 0x2) {
552 dev_notice(&instance->pdev->dev, "mfi 1068 offset read=%x\n", pcidata);
553 pcidata &= ~0x2;
554 pci_write_config_dword(instance->pdev,
555 MFI_1068_PCSR_OFFSET, pcidata);
556
557 for (i = 0; i < 2; i++)
558 msleep(1000); /* need to wait 2 secs again */
559
560 pcidata = 0;
561 pci_read_config_dword(instance->pdev,
562 MFI_1068_FW_HANDSHAKE_OFFSET, &pcidata);
563 dev_notice(&instance->pdev->dev, "1068 offset handshake read=%x\n", pcidata);
564 if ((pcidata & 0xffff0000) == MFI_1068_FW_READY) {
565 dev_notice(&instance->pdev->dev, "1068 offset pcidt=%x\n", pcidata);
566 pcidata = 0;
567 pci_write_config_dword(instance->pdev,
568 MFI_1068_FW_HANDSHAKE_OFFSET, pcidata);
569 }
570 }
571 return 0;
572 }
573
574 /**
575 * megasas_check_reset_xscale - For controller reset check
576 * @instance: Adapter soft state
577 * @regs: MFI register set
578 */
579 static int
580 megasas_check_reset_xscale(struct megasas_instance *instance,
581 struct megasas_register_set __iomem *regs)
582 {
583 if ((atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) &&
584 (le32_to_cpu(*instance->consumer) ==
585 MEGASAS_ADPRESET_INPROG_SIGN))
586 return 1;
587 return 0;
588 }
589
590 static struct megasas_instance_template megasas_instance_template_xscale = {
591
592 .fire_cmd = megasas_fire_cmd_xscale,
593 .enable_intr = megasas_enable_intr_xscale,
594 .disable_intr = megasas_disable_intr_xscale,
595 .clear_intr = megasas_clear_intr_xscale,
596 .read_fw_status_reg = megasas_read_fw_status_reg_xscale,
597 .adp_reset = megasas_adp_reset_xscale,
598 .check_reset = megasas_check_reset_xscale,
599 .service_isr = megasas_isr,
600 .tasklet = megasas_complete_cmd_dpc,
601 .init_adapter = megasas_init_adapter_mfi,
602 .build_and_issue_cmd = megasas_build_and_issue_cmd,
603 .issue_dcmd = megasas_issue_dcmd,
604 };
605
606 /*
607 * This is the end of set of functions & definitions specific
608 * to xscale (deviceid : 1064R, PERC5) controllers
609 */
610
611 /*
612 * The following functions are defined for ppc (deviceid : 0x60)
613 * controllers
614 */
615
616 /**
617 * megasas_enable_intr_ppc - Enables interrupts
618 * @instance: Adapter soft state
619 */
620 static inline void
621 megasas_enable_intr_ppc(struct megasas_instance *instance)
622 {
623 struct megasas_register_set __iomem *regs;
624
625 regs = instance->reg_set;
626 writel(0xFFFFFFFF, &(regs)->outbound_doorbell_clear);
627
628 writel(~0x80000000, &(regs)->outbound_intr_mask);
629
630 /* Dummy readl to force pci flush */
631 readl(&regs->outbound_intr_mask);
632 }
633
634 /**
635 * megasas_disable_intr_ppc - Disable interrupt
636 * @instance: Adapter soft state
637 */
638 static inline void
639 megasas_disable_intr_ppc(struct megasas_instance *instance)
640 {
641 struct megasas_register_set __iomem *regs;
642 u32 mask = 0xFFFFFFFF;
643
644 regs = instance->reg_set;
645 writel(mask, &regs->outbound_intr_mask);
646 /* Dummy readl to force pci flush */
647 readl(&regs->outbound_intr_mask);
648 }
649
650 /**
651 * megasas_read_fw_status_reg_ppc - returns the current FW status value
652 * @instance: Adapter soft state
653 */
654 static u32
655 megasas_read_fw_status_reg_ppc(struct megasas_instance *instance)
656 {
657 return readl(&instance->reg_set->outbound_scratch_pad_0);
658 }
659
660 /**
661 * megasas_clear_interrupt_ppc - Check & clear interrupt
662 * @instance: Adapter soft state
663 */
664 static int
665 megasas_clear_intr_ppc(struct megasas_instance *instance)
666 {
667 u32 status, mfiStatus = 0;
668 struct megasas_register_set __iomem *regs;
669 regs = instance->reg_set;
670
671 /*
672 * Check if it is our interrupt
673 */
674 status = readl(&regs->outbound_intr_status);
675
676 if (status & MFI_REPLY_1078_MESSAGE_INTERRUPT)
677 mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE;
678
679 if (status & MFI_G2_OUTBOUND_DOORBELL_CHANGE_INTERRUPT)
680 mfiStatus |= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE;
681
682 /*
683 * Clear the interrupt by writing back the same value
684 */
685 writel(status, &regs->outbound_doorbell_clear);
686
687 /* Dummy readl to force pci flush */
688 readl(&regs->outbound_doorbell_clear);
689
690 return mfiStatus;
691 }
692
693 /**
694 * megasas_fire_cmd_ppc - Sends command to the FW
695 * @instance: Adapter soft state
696 * @frame_phys_addr: Physical address of cmd
697 * @frame_count: Number of frames for the command
698 * @regs: MFI register set
699 */
700 static inline void
701 megasas_fire_cmd_ppc(struct megasas_instance *instance,
702 dma_addr_t frame_phys_addr,
703 u32 frame_count,
704 struct megasas_register_set __iomem *regs)
705 {
706 unsigned long flags;
707
708 spin_lock_irqsave(&instance->hba_lock, flags);
709 writel((frame_phys_addr | (frame_count<<1))|1,
710 &(regs)->inbound_queue_port);
711 spin_unlock_irqrestore(&instance->hba_lock, flags);
712 }
713
714 /**
715 * megasas_check_reset_ppc - For controller reset check
716 * @instance: Adapter soft state
717 * @regs: MFI register set
718 */
719 static int
720 megasas_check_reset_ppc(struct megasas_instance *instance,
721 struct megasas_register_set __iomem *regs)
722 {
723 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL)
724 return 1;
725
726 return 0;
727 }
728
729 static struct megasas_instance_template megasas_instance_template_ppc = {
730
731 .fire_cmd = megasas_fire_cmd_ppc,
732 .enable_intr = megasas_enable_intr_ppc,
733 .disable_intr = megasas_disable_intr_ppc,
734 .clear_intr = megasas_clear_intr_ppc,
735 .read_fw_status_reg = megasas_read_fw_status_reg_ppc,
736 .adp_reset = megasas_adp_reset_xscale,
737 .check_reset = megasas_check_reset_ppc,
738 .service_isr = megasas_isr,
739 .tasklet = megasas_complete_cmd_dpc,
740 .init_adapter = megasas_init_adapter_mfi,
741 .build_and_issue_cmd = megasas_build_and_issue_cmd,
742 .issue_dcmd = megasas_issue_dcmd,
743 };
744
745 /**
746 * megasas_enable_intr_skinny - Enables interrupts
747 * @instance: Adapter soft state
748 */
749 static inline void
750 megasas_enable_intr_skinny(struct megasas_instance *instance)
751 {
752 struct megasas_register_set __iomem *regs;
753
754 regs = instance->reg_set;
755 writel(0xFFFFFFFF, &(regs)->outbound_intr_mask);
756
757 writel(~MFI_SKINNY_ENABLE_INTERRUPT_MASK, &(regs)->outbound_intr_mask);
758
759 /* Dummy readl to force pci flush */
760 readl(&regs->outbound_intr_mask);
761 }
762
763 /**
764 * megasas_disable_intr_skinny - Disables interrupt
765 * @instance: Adapter soft state
766 */
767 static inline void
768 megasas_disable_intr_skinny(struct megasas_instance *instance)
769 {
770 struct megasas_register_set __iomem *regs;
771 u32 mask = 0xFFFFFFFF;
772
773 regs = instance->reg_set;
774 writel(mask, &regs->outbound_intr_mask);
775 /* Dummy readl to force pci flush */
776 readl(&regs->outbound_intr_mask);
777 }
778
779 /**
780 * megasas_read_fw_status_reg_skinny - returns the current FW status value
781 * @instance: Adapter soft state
782 */
783 static u32
784 megasas_read_fw_status_reg_skinny(struct megasas_instance *instance)
785 {
786 return readl(&instance->reg_set->outbound_scratch_pad_0);
787 }
788
789 /**
790 * megasas_clear_interrupt_skinny - Check & clear interrupt
791 * @instance: Adapter soft state
792 */
793 static int
794 megasas_clear_intr_skinny(struct megasas_instance *instance)
795 {
796 u32 status;
797 u32 mfiStatus = 0;
798 struct megasas_register_set __iomem *regs;
799 regs = instance->reg_set;
800
801 /*
802 * Check if it is our interrupt
803 */
804 status = readl(&regs->outbound_intr_status);
805
806 if (!(status & MFI_SKINNY_ENABLE_INTERRUPT_MASK)) {
807 return 0;
808 }
809
810 /*
811 * Check if it is our interrupt
812 */
813 if ((megasas_read_fw_status_reg_skinny(instance) & MFI_STATE_MASK) ==
814 MFI_STATE_FAULT) {
815 mfiStatus = MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE;
816 } else
817 mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE;
818
819 /*
820 * Clear the interrupt by writing back the same value
821 */
822 writel(status, &regs->outbound_intr_status);
823
824 /*
825 * dummy read to flush PCI
826 */
827 readl(&regs->outbound_intr_status);
828
829 return mfiStatus;
830 }
831
832 /**
833 * megasas_fire_cmd_skinny - Sends command to the FW
834 * @instance: Adapter soft state
835 * @frame_phys_addr: Physical address of cmd
836 * @frame_count: Number of frames for the command
837 * @regs: MFI register set
838 */
839 static inline void
840 megasas_fire_cmd_skinny(struct megasas_instance *instance,
841 dma_addr_t frame_phys_addr,
842 u32 frame_count,
843 struct megasas_register_set __iomem *regs)
844 {
845 unsigned long flags;
846
847 spin_lock_irqsave(&instance->hba_lock, flags);
848 writel(upper_32_bits(frame_phys_addr),
849 &(regs)->inbound_high_queue_port);
850 writel((lower_32_bits(frame_phys_addr) | (frame_count<<1))|1,
851 &(regs)->inbound_low_queue_port);
852 spin_unlock_irqrestore(&instance->hba_lock, flags);
853 }
854
855 /**
856 * megasas_check_reset_skinny - For controller reset check
857 * @instance: Adapter soft state
858 * @regs: MFI register set
859 */
860 static int
861 megasas_check_reset_skinny(struct megasas_instance *instance,
862 struct megasas_register_set __iomem *regs)
863 {
864 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL)
865 return 1;
866
867 return 0;
868 }
869
870 static struct megasas_instance_template megasas_instance_template_skinny = {
871
872 .fire_cmd = megasas_fire_cmd_skinny,
873 .enable_intr = megasas_enable_intr_skinny,
874 .disable_intr = megasas_disable_intr_skinny,
875 .clear_intr = megasas_clear_intr_skinny,
876 .read_fw_status_reg = megasas_read_fw_status_reg_skinny,
877 .adp_reset = megasas_adp_reset_gen2,
878 .check_reset = megasas_check_reset_skinny,
879 .service_isr = megasas_isr,
880 .tasklet = megasas_complete_cmd_dpc,
881 .init_adapter = megasas_init_adapter_mfi,
882 .build_and_issue_cmd = megasas_build_and_issue_cmd,
883 .issue_dcmd = megasas_issue_dcmd,
884 };
885
886
887 /*
888 * The following functions are defined for gen2 (deviceid : 0x78 0x79)
889 * controllers
890 */
891
892 /**
893 * megasas_enable_intr_gen2 - Enables interrupts
894 * @instance: Adapter soft state
895 */
896 static inline void
897 megasas_enable_intr_gen2(struct megasas_instance *instance)
898 {
899 struct megasas_register_set __iomem *regs;
900
901 regs = instance->reg_set;
902 writel(0xFFFFFFFF, &(regs)->outbound_doorbell_clear);
903
904 /* write ~0x00000005 (4 & 1) to the intr mask*/
905 writel(~MFI_GEN2_ENABLE_INTERRUPT_MASK, &(regs)->outbound_intr_mask);
906
907 /* Dummy readl to force pci flush */
908 readl(&regs->outbound_intr_mask);
909 }
910
911 /**
912 * megasas_disable_intr_gen2 - Disables interrupt
913 * @instance: Adapter soft state
914 */
915 static inline void
916 megasas_disable_intr_gen2(struct megasas_instance *instance)
917 {
918 struct megasas_register_set __iomem *regs;
919 u32 mask = 0xFFFFFFFF;
920
921 regs = instance->reg_set;
922 writel(mask, &regs->outbound_intr_mask);
923 /* Dummy readl to force pci flush */
924 readl(&regs->outbound_intr_mask);
925 }
926
927 /**
928 * megasas_read_fw_status_reg_gen2 - returns the current FW status value
929 * @instance: Adapter soft state
930 */
931 static u32
932 megasas_read_fw_status_reg_gen2(struct megasas_instance *instance)
933 {
934 return readl(&instance->reg_set->outbound_scratch_pad_0);
935 }
936
937 /**
938 * megasas_clear_interrupt_gen2 - Check & clear interrupt
939 * @instance: Adapter soft state
940 */
941 static int
942 megasas_clear_intr_gen2(struct megasas_instance *instance)
943 {
944 u32 status;
945 u32 mfiStatus = 0;
946 struct megasas_register_set __iomem *regs;
947 regs = instance->reg_set;
948
949 /*
950 * Check if it is our interrupt
951 */
952 status = readl(&regs->outbound_intr_status);
953
954 if (status & MFI_INTR_FLAG_REPLY_MESSAGE) {
955 mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE;
956 }
957 if (status & MFI_G2_OUTBOUND_DOORBELL_CHANGE_INTERRUPT) {
958 mfiStatus |= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE;
959 }
960
961 /*
962 * Clear the interrupt by writing back the same value
963 */
964 if (mfiStatus)
965 writel(status, &regs->outbound_doorbell_clear);
966
967 /* Dummy readl to force pci flush */
968 readl(&regs->outbound_intr_status);
969
970 return mfiStatus;
971 }
972
973 /**
974 * megasas_fire_cmd_gen2 - Sends command to the FW
975 * @instance: Adapter soft state
976 * @frame_phys_addr: Physical address of cmd
977 * @frame_count: Number of frames for the command
978 * @regs: MFI register set
979 */
980 static inline void
981 megasas_fire_cmd_gen2(struct megasas_instance *instance,
982 dma_addr_t frame_phys_addr,
983 u32 frame_count,
984 struct megasas_register_set __iomem *regs)
985 {
986 unsigned long flags;
987
988 spin_lock_irqsave(&instance->hba_lock, flags);
989 writel((frame_phys_addr | (frame_count<<1))|1,
990 &(regs)->inbound_queue_port);
991 spin_unlock_irqrestore(&instance->hba_lock, flags);
992 }
993
994 /**
995 * megasas_adp_reset_gen2 - For controller reset
996 * @instance: Adapter soft state
997 * @reg_set: MFI register set
998 */
999 static int
1000 megasas_adp_reset_gen2(struct megasas_instance *instance,
1001 struct megasas_register_set __iomem *reg_set)
1002 {
1003 u32 retry = 0 ;
1004 u32 HostDiag;
1005 u32 __iomem *seq_offset = &reg_set->seq_offset;
1006 u32 __iomem *hostdiag_offset = &reg_set->host_diag;
1007
1008 if (instance->instancet == &megasas_instance_template_skinny) {
1009 seq_offset = &reg_set->fusion_seq_offset;
1010 hostdiag_offset = &reg_set->fusion_host_diag;
1011 }
1012
1013 writel(0, seq_offset);
1014 writel(4, seq_offset);
1015 writel(0xb, seq_offset);
1016 writel(2, seq_offset);
1017 writel(7, seq_offset);
1018 writel(0xd, seq_offset);
1019
1020 msleep(1000);
1021
1022 HostDiag = (u32)readl(hostdiag_offset);
1023
1024 while (!(HostDiag & DIAG_WRITE_ENABLE)) {
1025 msleep(100);
1026 HostDiag = (u32)readl(hostdiag_offset);
1027 dev_notice(&instance->pdev->dev, "RESETGEN2: retry=%x, hostdiag=%x\n",
1028 retry, HostDiag);
1029
1030 if (retry++ >= 100)
1031 return 1;
1032
1033 }
1034
1035 dev_notice(&instance->pdev->dev, "ADP_RESET_GEN2: HostDiag=%x\n", HostDiag);
1036
1037 writel((HostDiag | DIAG_RESET_ADAPTER), hostdiag_offset);
1038
1039 ssleep(10);
1040
1041 HostDiag = (u32)readl(hostdiag_offset);
1042 while (HostDiag & DIAG_RESET_ADAPTER) {
1043 msleep(100);
1044 HostDiag = (u32)readl(hostdiag_offset);
1045 dev_notice(&instance->pdev->dev, "RESET_GEN2: retry=%x, hostdiag=%x\n",
1046 retry, HostDiag);
1047
1048 if (retry++ >= 1000)
1049 return 1;
1050
1051 }
1052 return 0;
1053 }
1054
1055 /**
1056 * megasas_check_reset_gen2 - For controller reset check
1057 * @instance: Adapter soft state
1058 * @regs: MFI register set
1059 */
1060 static int
1061 megasas_check_reset_gen2(struct megasas_instance *instance,
1062 struct megasas_register_set __iomem *regs)
1063 {
1064 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL)
1065 return 1;
1066
1067 return 0;
1068 }
1069
1070 static struct megasas_instance_template megasas_instance_template_gen2 = {
1071
1072 .fire_cmd = megasas_fire_cmd_gen2,
1073 .enable_intr = megasas_enable_intr_gen2,
1074 .disable_intr = megasas_disable_intr_gen2,
1075 .clear_intr = megasas_clear_intr_gen2,
1076 .read_fw_status_reg = megasas_read_fw_status_reg_gen2,
1077 .adp_reset = megasas_adp_reset_gen2,
1078 .check_reset = megasas_check_reset_gen2,
1079 .service_isr = megasas_isr,
1080 .tasklet = megasas_complete_cmd_dpc,
1081 .init_adapter = megasas_init_adapter_mfi,
1082 .build_and_issue_cmd = megasas_build_and_issue_cmd,
1083 .issue_dcmd = megasas_issue_dcmd,
1084 };
1085
1086 /*
1087 * This is the end of set of functions & definitions
1088 * specific to gen2 (deviceid : 0x78, 0x79) controllers
1089 */
1090
1091 /*
1092 * Template added for TB (Fusion)
1093 */
1094 extern struct megasas_instance_template megasas_instance_template_fusion;
1095
1096 /**
1097 * megasas_issue_polled - Issues a polling command
1098 * @instance: Adapter soft state
1099 * @cmd: Command packet to be issued
1100 *
1101 * For polling, MFI requires the cmd_status to be set to MFI_STAT_INVALID_STATUS before posting.
1102 */
1103 int
1104 megasas_issue_polled(struct megasas_instance *instance, struct megasas_cmd *cmd)
1105 {
1106 struct megasas_header *frame_hdr = &cmd->frame->hdr;
1107
1108 frame_hdr->cmd_status = MFI_STAT_INVALID_STATUS;
1109 frame_hdr->flags |= cpu_to_le16(MFI_FRAME_DONT_POST_IN_REPLY_QUEUE);
1110
1111 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
1112 dev_err(&instance->pdev->dev, "Failed from %s %d\n",
1113 __func__, __LINE__);
1114 return DCMD_INIT;
1115 }
1116
1117 instance->instancet->issue_dcmd(instance, cmd);
1118
1119 return wait_and_poll(instance, cmd, instance->requestorId ?
1120 MEGASAS_ROUTINE_WAIT_TIME_VF : MFI_IO_TIMEOUT_SECS);
1121 }
1122
1123 /**
1124 * megasas_issue_blocked_cmd - Synchronous wrapper around regular FW cmds
1125 * @instance: Adapter soft state
1126 * @cmd: Command to be issued
1127 * @timeout: Timeout in seconds
1128 *
1129 * This function waits on an event for the command to be returned from ISR.
1130 * Max wait time is MEGASAS_INTERNAL_CMD_WAIT_TIME secs
1131 * Used to issue ioctl commands.
1132 */
1133 int
1134 megasas_issue_blocked_cmd(struct megasas_instance *instance,
1135 struct megasas_cmd *cmd, int timeout)
1136 {
1137 int ret = 0;
1138 cmd->cmd_status_drv = DCMD_INIT;
1139
1140 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
1141 dev_err(&instance->pdev->dev, "Failed from %s %d\n",
1142 __func__, __LINE__);
1143 return DCMD_INIT;
1144 }
1145
1146 instance->instancet->issue_dcmd(instance, cmd);
1147
1148 if (timeout) {
1149 ret = wait_event_timeout(instance->int_cmd_wait_q,
1150 cmd->cmd_status_drv != DCMD_INIT, timeout * HZ);
1151 if (!ret) {
1152 dev_err(&instance->pdev->dev,
1153 "DCMD(opcode: 0x%x) is timed out, func:%s\n",
1154 cmd->frame->dcmd.opcode, __func__);
1155 return DCMD_TIMEOUT;
1156 }
1157 } else
1158 wait_event(instance->int_cmd_wait_q,
1159 cmd->cmd_status_drv != DCMD_INIT);
1160
1161 return cmd->cmd_status_drv;
1162 }
1163
1164 /**
1165 * megasas_issue_blocked_abort_cmd - Aborts previously issued cmd
1166 * @instance: Adapter soft state
1167 * @cmd_to_abort: Previously issued cmd to be aborted
1168 * @timeout: Timeout in seconds
1169 *
1170 * MFI firmware can abort previously issued AEN comamnd (automatic event
1171 * notification). The megasas_issue_blocked_abort_cmd() issues such abort
1172 * cmd and waits for return status.
1173 * Max wait time is MEGASAS_INTERNAL_CMD_WAIT_TIME secs
1174 */
1175 static int
1176 megasas_issue_blocked_abort_cmd(struct megasas_instance *instance,
1177 struct megasas_cmd *cmd_to_abort, int timeout)
1178 {
1179 struct megasas_cmd *cmd;
1180 struct megasas_abort_frame *abort_fr;
1181 int ret = 0;
1182 u32 opcode;
1183
1184 cmd = megasas_get_cmd(instance);
1185
1186 if (!cmd)
1187 return -1;
1188
1189 abort_fr = &cmd->frame->abort;
1190
1191 /*
1192 * Prepare and issue the abort frame
1193 */
1194 abort_fr->cmd = MFI_CMD_ABORT;
1195 abort_fr->cmd_status = MFI_STAT_INVALID_STATUS;
1196 abort_fr->flags = cpu_to_le16(0);
1197 abort_fr->abort_context = cpu_to_le32(cmd_to_abort->index);
1198 abort_fr->abort_mfi_phys_addr_lo =
1199 cpu_to_le32(lower_32_bits(cmd_to_abort->frame_phys_addr));
1200 abort_fr->abort_mfi_phys_addr_hi =
1201 cpu_to_le32(upper_32_bits(cmd_to_abort->frame_phys_addr));
1202
1203 cmd->sync_cmd = 1;
1204 cmd->cmd_status_drv = DCMD_INIT;
1205
1206 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
1207 dev_err(&instance->pdev->dev, "Failed from %s %d\n",
1208 __func__, __LINE__);
1209 return DCMD_INIT;
1210 }
1211
1212 instance->instancet->issue_dcmd(instance, cmd);
1213
1214 if (timeout) {
1215 ret = wait_event_timeout(instance->abort_cmd_wait_q,
1216 cmd->cmd_status_drv != DCMD_INIT, timeout * HZ);
1217 if (!ret) {
1218 opcode = cmd_to_abort->frame->dcmd.opcode;
1219 dev_err(&instance->pdev->dev,
1220 "Abort(to be aborted DCMD opcode: 0x%x) is timed out func:%s\n",
1221 opcode, __func__);
1222 return DCMD_TIMEOUT;
1223 }
1224 } else
1225 wait_event(instance->abort_cmd_wait_q,
1226 cmd->cmd_status_drv != DCMD_INIT);
1227
1228 cmd->sync_cmd = 0;
1229
1230 megasas_return_cmd(instance, cmd);
1231 return cmd->cmd_status_drv;
1232 }
1233
1234 /**
1235 * megasas_make_sgl32 - Prepares 32-bit SGL
1236 * @instance: Adapter soft state
1237 * @scp: SCSI command from the mid-layer
1238 * @mfi_sgl: SGL to be filled in
1239 *
1240 * If successful, this function returns the number of SG elements. Otherwise,
1241 * it returnes -1.
1242 */
1243 static int
1244 megasas_make_sgl32(struct megasas_instance *instance, struct scsi_cmnd *scp,
1245 union megasas_sgl *mfi_sgl)
1246 {
1247 int i;
1248 int sge_count;
1249 struct scatterlist *os_sgl;
1250
1251 sge_count = scsi_dma_map(scp);
1252 BUG_ON(sge_count < 0);
1253
1254 if (sge_count) {
1255 scsi_for_each_sg(scp, os_sgl, sge_count, i) {
1256 mfi_sgl->sge32[i].length = cpu_to_le32(sg_dma_len(os_sgl));
1257 mfi_sgl->sge32[i].phys_addr = cpu_to_le32(sg_dma_address(os_sgl));
1258 }
1259 }
1260 return sge_count;
1261 }
1262
1263 /**
1264 * megasas_make_sgl64 - Prepares 64-bit SGL
1265 * @instance: Adapter soft state
1266 * @scp: SCSI command from the mid-layer
1267 * @mfi_sgl: SGL to be filled in
1268 *
1269 * If successful, this function returns the number of SG elements. Otherwise,
1270 * it returnes -1.
1271 */
1272 static int
1273 megasas_make_sgl64(struct megasas_instance *instance, struct scsi_cmnd *scp,
1274 union megasas_sgl *mfi_sgl)
1275 {
1276 int i;
1277 int sge_count;
1278 struct scatterlist *os_sgl;
1279
1280 sge_count = scsi_dma_map(scp);
1281 BUG_ON(sge_count < 0);
1282
1283 if (sge_count) {
1284 scsi_for_each_sg(scp, os_sgl, sge_count, i) {
1285 mfi_sgl->sge64[i].length = cpu_to_le32(sg_dma_len(os_sgl));
1286 mfi_sgl->sge64[i].phys_addr = cpu_to_le64(sg_dma_address(os_sgl));
1287 }
1288 }
1289 return sge_count;
1290 }
1291
1292 /**
1293 * megasas_make_sgl_skinny - Prepares IEEE SGL
1294 * @instance: Adapter soft state
1295 * @scp: SCSI command from the mid-layer
1296 * @mfi_sgl: SGL to be filled in
1297 *
1298 * If successful, this function returns the number of SG elements. Otherwise,
1299 * it returnes -1.
1300 */
1301 static int
1302 megasas_make_sgl_skinny(struct megasas_instance *instance,
1303 struct scsi_cmnd *scp, union megasas_sgl *mfi_sgl)
1304 {
1305 int i;
1306 int sge_count;
1307 struct scatterlist *os_sgl;
1308
1309 sge_count = scsi_dma_map(scp);
1310
1311 if (sge_count) {
1312 scsi_for_each_sg(scp, os_sgl, sge_count, i) {
1313 mfi_sgl->sge_skinny[i].length =
1314 cpu_to_le32(sg_dma_len(os_sgl));
1315 mfi_sgl->sge_skinny[i].phys_addr =
1316 cpu_to_le64(sg_dma_address(os_sgl));
1317 mfi_sgl->sge_skinny[i].flag = cpu_to_le32(0);
1318 }
1319 }
1320 return sge_count;
1321 }
1322
1323 /**
1324 * megasas_get_frame_count - Computes the number of frames
1325 * @frame_type : type of frame- io or pthru frame
1326 * @sge_count : number of sg elements
1327 *
1328 * Returns the number of frames required for numnber of sge's (sge_count)
1329 */
1330
1331 static u32 megasas_get_frame_count(struct megasas_instance *instance,
1332 u8 sge_count, u8 frame_type)
1333 {
1334 int num_cnt;
1335 int sge_bytes;
1336 u32 sge_sz;
1337 u32 frame_count = 0;
1338
1339 sge_sz = (IS_DMA64) ? sizeof(struct megasas_sge64) :
1340 sizeof(struct megasas_sge32);
1341
1342 if (instance->flag_ieee) {
1343 sge_sz = sizeof(struct megasas_sge_skinny);
1344 }
1345
1346 /*
1347 * Main frame can contain 2 SGEs for 64-bit SGLs and
1348 * 3 SGEs for 32-bit SGLs for ldio &
1349 * 1 SGEs for 64-bit SGLs and
1350 * 2 SGEs for 32-bit SGLs for pthru frame
1351 */
1352 if (unlikely(frame_type == PTHRU_FRAME)) {
1353 if (instance->flag_ieee == 1) {
1354 num_cnt = sge_count - 1;
1355 } else if (IS_DMA64)
1356 num_cnt = sge_count - 1;
1357 else
1358 num_cnt = sge_count - 2;
1359 } else {
1360 if (instance->flag_ieee == 1) {
1361 num_cnt = sge_count - 1;
1362 } else if (IS_DMA64)
1363 num_cnt = sge_count - 2;
1364 else
1365 num_cnt = sge_count - 3;
1366 }
1367
1368 if (num_cnt > 0) {
1369 sge_bytes = sge_sz * num_cnt;
1370
1371 frame_count = (sge_bytes / MEGAMFI_FRAME_SIZE) +
1372 ((sge_bytes % MEGAMFI_FRAME_SIZE) ? 1 : 0) ;
1373 }
1374 /* Main frame */
1375 frame_count += 1;
1376
1377 if (frame_count > 7)
1378 frame_count = 8;
1379 return frame_count;
1380 }
1381
1382 /**
1383 * megasas_build_dcdb - Prepares a direct cdb (DCDB) command
1384 * @instance: Adapter soft state
1385 * @scp: SCSI command
1386 * @cmd: Command to be prepared in
1387 *
1388 * This function prepares CDB commands. These are typcially pass-through
1389 * commands to the devices.
1390 */
1391 static int
1392 megasas_build_dcdb(struct megasas_instance *instance, struct scsi_cmnd *scp,
1393 struct megasas_cmd *cmd)
1394 {
1395 u32 is_logical;
1396 u32 device_id;
1397 u16 flags = 0;
1398 struct megasas_pthru_frame *pthru;
1399
1400 is_logical = MEGASAS_IS_LOGICAL(scp->device);
1401 device_id = MEGASAS_DEV_INDEX(scp);
1402 pthru = (struct megasas_pthru_frame *)cmd->frame;
1403
1404 if (scp->sc_data_direction == DMA_TO_DEVICE)
1405 flags = MFI_FRAME_DIR_WRITE;
1406 else if (scp->sc_data_direction == DMA_FROM_DEVICE)
1407 flags = MFI_FRAME_DIR_READ;
1408 else if (scp->sc_data_direction == DMA_NONE)
1409 flags = MFI_FRAME_DIR_NONE;
1410
1411 if (instance->flag_ieee == 1) {
1412 flags |= MFI_FRAME_IEEE;
1413 }
1414
1415 /*
1416 * Prepare the DCDB frame
1417 */
1418 pthru->cmd = (is_logical) ? MFI_CMD_LD_SCSI_IO : MFI_CMD_PD_SCSI_IO;
1419 pthru->cmd_status = 0x0;
1420 pthru->scsi_status = 0x0;
1421 pthru->target_id = device_id;
1422 pthru->lun = scp->device->lun;
1423 pthru->cdb_len = scp->cmd_len;
1424 pthru->timeout = 0;
1425 pthru->pad_0 = 0;
1426 pthru->flags = cpu_to_le16(flags);
1427 pthru->data_xfer_len = cpu_to_le32(scsi_bufflen(scp));
1428
1429 memcpy(pthru->cdb, scp->cmnd, scp->cmd_len);
1430
1431 /*
1432 * If the command is for the tape device, set the
1433 * pthru timeout to the os layer timeout value.
1434 */
1435 if (scp->device->type == TYPE_TAPE) {
1436 if ((scp->request->timeout / HZ) > 0xFFFF)
1437 pthru->timeout = cpu_to_le16(0xFFFF);
1438 else
1439 pthru->timeout = cpu_to_le16(scp->request->timeout / HZ);
1440 }
1441
1442 /*
1443 * Construct SGL
1444 */
1445 if (instance->flag_ieee == 1) {
1446 pthru->flags |= cpu_to_le16(MFI_FRAME_SGL64);
1447 pthru->sge_count = megasas_make_sgl_skinny(instance, scp,
1448 &pthru->sgl);
1449 } else if (IS_DMA64) {
1450 pthru->flags |= cpu_to_le16(MFI_FRAME_SGL64);
1451 pthru->sge_count = megasas_make_sgl64(instance, scp,
1452 &pthru->sgl);
1453 } else
1454 pthru->sge_count = megasas_make_sgl32(instance, scp,
1455 &pthru->sgl);
1456
1457 if (pthru->sge_count > instance->max_num_sge) {
1458 dev_err(&instance->pdev->dev, "DCDB too many SGE NUM=%x\n",
1459 pthru->sge_count);
1460 return 0;
1461 }
1462
1463 /*
1464 * Sense info specific
1465 */
1466 pthru->sense_len = SCSI_SENSE_BUFFERSIZE;
1467 pthru->sense_buf_phys_addr_hi =
1468 cpu_to_le32(upper_32_bits(cmd->sense_phys_addr));
1469 pthru->sense_buf_phys_addr_lo =
1470 cpu_to_le32(lower_32_bits(cmd->sense_phys_addr));
1471
1472 /*
1473 * Compute the total number of frames this command consumes. FW uses
1474 * this number to pull sufficient number of frames from host memory.
1475 */
1476 cmd->frame_count = megasas_get_frame_count(instance, pthru->sge_count,
1477 PTHRU_FRAME);
1478
1479 return cmd->frame_count;
1480 }
1481
1482 /**
1483 * megasas_build_ldio - Prepares IOs to logical devices
1484 * @instance: Adapter soft state
1485 * @scp: SCSI command
1486 * @cmd: Command to be prepared
1487 *
1488 * Frames (and accompanying SGLs) for regular SCSI IOs use this function.
1489 */
1490 static int
1491 megasas_build_ldio(struct megasas_instance *instance, struct scsi_cmnd *scp,
1492 struct megasas_cmd *cmd)
1493 {
1494 u32 device_id;
1495 u8 sc = scp->cmnd[0];
1496 u16 flags = 0;
1497 struct megasas_io_frame *ldio;
1498
1499 device_id = MEGASAS_DEV_INDEX(scp);
1500 ldio = (struct megasas_io_frame *)cmd->frame;
1501
1502 if (scp->sc_data_direction == DMA_TO_DEVICE)
1503 flags = MFI_FRAME_DIR_WRITE;
1504 else if (scp->sc_data_direction == DMA_FROM_DEVICE)
1505 flags = MFI_FRAME_DIR_READ;
1506
1507 if (instance->flag_ieee == 1) {
1508 flags |= MFI_FRAME_IEEE;
1509 }
1510
1511 /*
1512 * Prepare the Logical IO frame: 2nd bit is zero for all read cmds
1513 */
1514 ldio->cmd = (sc & 0x02) ? MFI_CMD_LD_WRITE : MFI_CMD_LD_READ;
1515 ldio->cmd_status = 0x0;
1516 ldio->scsi_status = 0x0;
1517 ldio->target_id = device_id;
1518 ldio->timeout = 0;
1519 ldio->reserved_0 = 0;
1520 ldio->pad_0 = 0;
1521 ldio->flags = cpu_to_le16(flags);
1522 ldio->start_lba_hi = 0;
1523 ldio->access_byte = (scp->cmd_len != 6) ? scp->cmnd[1] : 0;
1524
1525 /*
1526 * 6-byte READ(0x08) or WRITE(0x0A) cdb
1527 */
1528 if (scp->cmd_len == 6) {
1529 ldio->lba_count = cpu_to_le32((u32) scp->cmnd[4]);
1530 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[1] << 16) |
1531 ((u32) scp->cmnd[2] << 8) |
1532 (u32) scp->cmnd[3]);
1533
1534 ldio->start_lba_lo &= cpu_to_le32(0x1FFFFF);
1535 }
1536
1537 /*
1538 * 10-byte READ(0x28) or WRITE(0x2A) cdb
1539 */
1540 else if (scp->cmd_len == 10) {
1541 ldio->lba_count = cpu_to_le32((u32) scp->cmnd[8] |
1542 ((u32) scp->cmnd[7] << 8));
1543 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[2] << 24) |
1544 ((u32) scp->cmnd[3] << 16) |
1545 ((u32) scp->cmnd[4] << 8) |
1546 (u32) scp->cmnd[5]);
1547 }
1548
1549 /*
1550 * 12-byte READ(0xA8) or WRITE(0xAA) cdb
1551 */
1552 else if (scp->cmd_len == 12) {
1553 ldio->lba_count = cpu_to_le32(((u32) scp->cmnd[6] << 24) |
1554 ((u32) scp->cmnd[7] << 16) |
1555 ((u32) scp->cmnd[8] << 8) |
1556 (u32) scp->cmnd[9]);
1557
1558 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[2] << 24) |
1559 ((u32) scp->cmnd[3] << 16) |
1560 ((u32) scp->cmnd[4] << 8) |
1561 (u32) scp->cmnd[5]);
1562 }
1563
1564 /*
1565 * 16-byte READ(0x88) or WRITE(0x8A) cdb
1566 */
1567 else if (scp->cmd_len == 16) {
1568 ldio->lba_count = cpu_to_le32(((u32) scp->cmnd[10] << 24) |
1569 ((u32) scp->cmnd[11] << 16) |
1570 ((u32) scp->cmnd[12] << 8) |
1571 (u32) scp->cmnd[13]);
1572
1573 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[6] << 24) |
1574 ((u32) scp->cmnd[7] << 16) |
1575 ((u32) scp->cmnd[8] << 8) |
1576 (u32) scp->cmnd[9]);
1577
1578 ldio->start_lba_hi = cpu_to_le32(((u32) scp->cmnd[2] << 24) |
1579 ((u32) scp->cmnd[3] << 16) |
1580 ((u32) scp->cmnd[4] << 8) |
1581 (u32) scp->cmnd[5]);
1582
1583 }
1584
1585 /*
1586 * Construct SGL
1587 */
1588 if (instance->flag_ieee) {
1589 ldio->flags |= cpu_to_le16(MFI_FRAME_SGL64);
1590 ldio->sge_count = megasas_make_sgl_skinny(instance, scp,
1591 &ldio->sgl);
1592 } else if (IS_DMA64) {
1593 ldio->flags |= cpu_to_le16(MFI_FRAME_SGL64);
1594 ldio->sge_count = megasas_make_sgl64(instance, scp, &ldio->sgl);
1595 } else
1596 ldio->sge_count = megasas_make_sgl32(instance, scp, &ldio->sgl);
1597
1598 if (ldio->sge_count > instance->max_num_sge) {
1599 dev_err(&instance->pdev->dev, "build_ld_io: sge_count = %x\n",
1600 ldio->sge_count);
1601 return 0;
1602 }
1603
1604 /*
1605 * Sense info specific
1606 */
1607 ldio->sense_len = SCSI_SENSE_BUFFERSIZE;
1608 ldio->sense_buf_phys_addr_hi = 0;
1609 ldio->sense_buf_phys_addr_lo = cpu_to_le32(cmd->sense_phys_addr);
1610
1611 /*
1612 * Compute the total number of frames this command consumes. FW uses
1613 * this number to pull sufficient number of frames from host memory.
1614 */
1615 cmd->frame_count = megasas_get_frame_count(instance,
1616 ldio->sge_count, IO_FRAME);
1617
1618 return cmd->frame_count;
1619 }
1620
1621 /**
1622 * megasas_cmd_type - Checks if the cmd is for logical drive/sysPD
1623 * and whether it's RW or non RW
1624 * @cmd: SCSI command
1625 *
1626 */
1627 inline int megasas_cmd_type(struct scsi_cmnd *cmd)
1628 {
1629 int ret;
1630
1631 switch (cmd->cmnd[0]) {
1632 case READ_10:
1633 case WRITE_10:
1634 case READ_12:
1635 case WRITE_12:
1636 case READ_6:
1637 case WRITE_6:
1638 case READ_16:
1639 case WRITE_16:
1640 ret = (MEGASAS_IS_LOGICAL(cmd->device)) ?
1641 READ_WRITE_LDIO : READ_WRITE_SYSPDIO;
1642 break;
1643 default:
1644 ret = (MEGASAS_IS_LOGICAL(cmd->device)) ?
1645 NON_READ_WRITE_LDIO : NON_READ_WRITE_SYSPDIO;
1646 }
1647 return ret;
1648 }
1649
1650 /**
1651 * megasas_dump_pending_frames - Dumps the frame address of all pending cmds
1652 * in FW
1653 * @instance: Adapter soft state
1654 */
1655 static inline void
1656 megasas_dump_pending_frames(struct megasas_instance *instance)
1657 {
1658 struct megasas_cmd *cmd;
1659 int i,n;
1660 union megasas_sgl *mfi_sgl;
1661 struct megasas_io_frame *ldio;
1662 struct megasas_pthru_frame *pthru;
1663 u32 sgcount;
1664 u16 max_cmd = instance->max_fw_cmds;
1665
1666 dev_err(&instance->pdev->dev, "[%d]: Dumping Frame Phys Address of all pending cmds in FW\n",instance->host->host_no);
1667 dev_err(&instance->pdev->dev, "[%d]: Total OS Pending cmds : %d\n",instance->host->host_no,atomic_read(&instance->fw_outstanding));
1668 if (IS_DMA64)
1669 dev_err(&instance->pdev->dev, "[%d]: 64 bit SGLs were sent to FW\n",instance->host->host_no);
1670 else
1671 dev_err(&instance->pdev->dev, "[%d]: 32 bit SGLs were sent to FW\n",instance->host->host_no);
1672
1673 dev_err(&instance->pdev->dev, "[%d]: Pending OS cmds in FW : \n",instance->host->host_no);
1674 for (i = 0; i < max_cmd; i++) {
1675 cmd = instance->cmd_list[i];
1676 if (!cmd->scmd)
1677 continue;
1678 dev_err(&instance->pdev->dev, "[%d]: Frame addr :0x%08lx : ",instance->host->host_no,(unsigned long)cmd->frame_phys_addr);
1679 if (megasas_cmd_type(cmd->scmd) == READ_WRITE_LDIO) {
1680 ldio = (struct megasas_io_frame *)cmd->frame;
1681 mfi_sgl = &ldio->sgl;
1682 sgcount = ldio->sge_count;
1683 dev_err(&instance->pdev->dev, "[%d]: frame count : 0x%x, Cmd : 0x%x, Tgt id : 0x%x,"
1684 " lba lo : 0x%x, lba_hi : 0x%x, sense_buf addr : 0x%x,sge count : 0x%x\n",
1685 instance->host->host_no, cmd->frame_count, ldio->cmd, ldio->target_id,
1686 le32_to_cpu(ldio->start_lba_lo), le32_to_cpu(ldio->start_lba_hi),
1687 le32_to_cpu(ldio->sense_buf_phys_addr_lo), sgcount);
1688 } else {
1689 pthru = (struct megasas_pthru_frame *) cmd->frame;
1690 mfi_sgl = &pthru->sgl;
1691 sgcount = pthru->sge_count;
1692 dev_err(&instance->pdev->dev, "[%d]: frame count : 0x%x, Cmd : 0x%x, Tgt id : 0x%x, "
1693 "lun : 0x%x, cdb_len : 0x%x, data xfer len : 0x%x, sense_buf addr : 0x%x,sge count : 0x%x\n",
1694 instance->host->host_no, cmd->frame_count, pthru->cmd, pthru->target_id,
1695 pthru->lun, pthru->cdb_len, le32_to_cpu(pthru->data_xfer_len),
1696 le32_to_cpu(pthru->sense_buf_phys_addr_lo), sgcount);
1697 }
1698 if (megasas_dbg_lvl & MEGASAS_DBG_LVL) {
1699 for (n = 0; n < sgcount; n++) {
1700 if (IS_DMA64)
1701 dev_err(&instance->pdev->dev, "sgl len : 0x%x, sgl addr : 0x%llx\n",
1702 le32_to_cpu(mfi_sgl->sge64[n].length),
1703 le64_to_cpu(mfi_sgl->sge64[n].phys_addr));
1704 else
1705 dev_err(&instance->pdev->dev, "sgl len : 0x%x, sgl addr : 0x%x\n",
1706 le32_to_cpu(mfi_sgl->sge32[n].length),
1707 le32_to_cpu(mfi_sgl->sge32[n].phys_addr));
1708 }
1709 }
1710 } /*for max_cmd*/
1711 dev_err(&instance->pdev->dev, "[%d]: Pending Internal cmds in FW : \n",instance->host->host_no);
1712 for (i = 0; i < max_cmd; i++) {
1713
1714 cmd = instance->cmd_list[i];
1715
1716 if (cmd->sync_cmd == 1)
1717 dev_err(&instance->pdev->dev, "0x%08lx : ", (unsigned long)cmd->frame_phys_addr);
1718 }
1719 dev_err(&instance->pdev->dev, "[%d]: Dumping Done\n\n",instance->host->host_no);
1720 }
1721
1722 u32
1723 megasas_build_and_issue_cmd(struct megasas_instance *instance,
1724 struct scsi_cmnd *scmd)
1725 {
1726 struct megasas_cmd *cmd;
1727 u32 frame_count;
1728
1729 cmd = megasas_get_cmd(instance);
1730 if (!cmd)
1731 return SCSI_MLQUEUE_HOST_BUSY;
1732
1733 /*
1734 * Logical drive command
1735 */
1736 if (megasas_cmd_type(scmd) == READ_WRITE_LDIO)
1737 frame_count = megasas_build_ldio(instance, scmd, cmd);
1738 else
1739 frame_count = megasas_build_dcdb(instance, scmd, cmd);
1740
1741 if (!frame_count)
1742 goto out_return_cmd;
1743
1744 cmd->scmd = scmd;
1745 scmd->SCp.ptr = (char *)cmd;
1746
1747 /*
1748 * Issue the command to the FW
1749 */
1750 atomic_inc(&instance->fw_outstanding);
1751
1752 instance->instancet->fire_cmd(instance, cmd->frame_phys_addr,
1753 cmd->frame_count-1, instance->reg_set);
1754
1755 return 0;
1756 out_return_cmd:
1757 megasas_return_cmd(instance, cmd);
1758 return SCSI_MLQUEUE_HOST_BUSY;
1759 }
1760
1761
1762 /**
1763 * megasas_queue_command - Queue entry point
1764 * @shost: adapter SCSI host
1765 * @scmd: SCSI command to be queued
1766 */
1767 static int
1768 megasas_queue_command(struct Scsi_Host *shost, struct scsi_cmnd *scmd)
1769 {
1770 struct megasas_instance *instance;
1771 struct MR_PRIV_DEVICE *mr_device_priv_data;
1772
1773 instance = (struct megasas_instance *)
1774 scmd->device->host->hostdata;
1775
1776 if (instance->unload == 1) {
1777 scmd->result = DID_NO_CONNECT << 16;
1778 scmd->scsi_done(scmd);
1779 return 0;
1780 }
1781
1782 if (instance->issuepend_done == 0)
1783 return SCSI_MLQUEUE_HOST_BUSY;
1784
1785
1786 /* Check for an mpio path and adjust behavior */
1787 if (atomic_read(&instance->adprecovery) == MEGASAS_ADPRESET_SM_INFAULT) {
1788 if (megasas_check_mpio_paths(instance, scmd) ==
1789 (DID_REQUEUE << 16)) {
1790 return SCSI_MLQUEUE_HOST_BUSY;
1791 } else {
1792 scmd->result = DID_NO_CONNECT << 16;
1793 scmd->scsi_done(scmd);
1794 return 0;
1795 }
1796 }
1797
1798 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
1799 scmd->result = DID_NO_CONNECT << 16;
1800 scmd->scsi_done(scmd);
1801 return 0;
1802 }
1803
1804 mr_device_priv_data = scmd->device->hostdata;
1805 if (!mr_device_priv_data) {
1806 scmd->result = DID_NO_CONNECT << 16;
1807 scmd->scsi_done(scmd);
1808 return 0;
1809 }
1810
1811 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL)
1812 return SCSI_MLQUEUE_HOST_BUSY;
1813
1814 if (mr_device_priv_data->tm_busy)
1815 return SCSI_MLQUEUE_DEVICE_BUSY;
1816
1817
1818 scmd->result = 0;
1819
1820 if (MEGASAS_IS_LOGICAL(scmd->device) &&
1821 (scmd->device->id >= instance->fw_supported_vd_count ||
1822 scmd->device->lun)) {
1823 scmd->result = DID_BAD_TARGET << 16;
1824 goto out_done;
1825 }
1826
1827 if ((scmd->cmnd[0] == SYNCHRONIZE_CACHE) &&
1828 MEGASAS_IS_LOGICAL(scmd->device) &&
1829 (!instance->fw_sync_cache_support)) {
1830 scmd->result = DID_OK << 16;
1831 goto out_done;
1832 }
1833
1834 return instance->instancet->build_and_issue_cmd(instance, scmd);
1835
1836 out_done:
1837 scmd->scsi_done(scmd);
1838 return 0;
1839 }
1840
1841 static struct megasas_instance *megasas_lookup_instance(u16 host_no)
1842 {
1843 int i;
1844
1845 for (i = 0; i < megasas_mgmt_info.max_index; i++) {
1846
1847 if ((megasas_mgmt_info.instance[i]) &&
1848 (megasas_mgmt_info.instance[i]->host->host_no == host_no))
1849 return megasas_mgmt_info.instance[i];
1850 }
1851
1852 return NULL;
1853 }
1854
1855 /*
1856 * megasas_set_dynamic_target_properties -
1857 * Device property set by driver may not be static and it is required to be
1858 * updated after OCR
1859 *
1860 * set tm_capable.
1861 * set dma alignment (only for eedp protection enable vd).
1862 *
1863 * @sdev: OS provided scsi device
1864 *
1865 * Returns void
1866 */
1867 void megasas_set_dynamic_target_properties(struct scsi_device *sdev,
1868 bool is_target_prop)
1869 {
1870 u16 pd_index = 0, ld;
1871 u32 device_id;
1872 struct megasas_instance *instance;
1873 struct fusion_context *fusion;
1874 struct MR_PRIV_DEVICE *mr_device_priv_data;
1875 struct MR_PD_CFG_SEQ_NUM_SYNC *pd_sync;
1876 struct MR_LD_RAID *raid;
1877 struct MR_DRV_RAID_MAP_ALL *local_map_ptr;
1878
1879 instance = megasas_lookup_instance(sdev->host->host_no);
1880 fusion = instance->ctrl_context;
1881 mr_device_priv_data = sdev->hostdata;
1882
1883 if (!fusion || !mr_device_priv_data)
1884 return;
1885
1886 if (MEGASAS_IS_LOGICAL(sdev)) {
1887 device_id = ((sdev->channel % 2) * MEGASAS_MAX_DEV_PER_CHANNEL)
1888 + sdev->id;
1889 local_map_ptr = fusion->ld_drv_map[(instance->map_id & 1)];
1890 ld = MR_TargetIdToLdGet(device_id, local_map_ptr);
1891 if (ld >= instance->fw_supported_vd_count)
1892 return;
1893 raid = MR_LdRaidGet(ld, local_map_ptr);
1894
1895 if (raid->capability.ldPiMode == MR_PROT_INFO_TYPE_CONTROLLER)
1896 blk_queue_update_dma_alignment(sdev->request_queue, 0x7);
1897
1898 mr_device_priv_data->is_tm_capable =
1899 raid->capability.tmCapable;
1900
1901 if (!raid->flags.isEPD)
1902 sdev->no_write_same = 1;
1903
1904 } else if (instance->use_seqnum_jbod_fp) {
1905 pd_index = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) +
1906 sdev->id;
1907 pd_sync = (void *)fusion->pd_seq_sync
1908 [(instance->pd_seq_map_id - 1) & 1];
1909 mr_device_priv_data->is_tm_capable =
1910 pd_sync->seq[pd_index].capability.tmCapable;
1911 }
1912
1913 if (is_target_prop && instance->tgt_prop->reset_tmo) {
1914 /*
1915 * If FW provides a target reset timeout value, driver will use
1916 * it. If not set, fallback to default values.
1917 */
1918 mr_device_priv_data->target_reset_tmo =
1919 min_t(u8, instance->max_reset_tmo,
1920 instance->tgt_prop->reset_tmo);
1921 mr_device_priv_data->task_abort_tmo = instance->task_abort_tmo;
1922 } else {
1923 mr_device_priv_data->target_reset_tmo =
1924 MEGASAS_DEFAULT_TM_TIMEOUT;
1925 mr_device_priv_data->task_abort_tmo =
1926 MEGASAS_DEFAULT_TM_TIMEOUT;
1927 }
1928 }
1929
1930 /*
1931 * megasas_set_nvme_device_properties -
1932 * set nomerges=2
1933 * set virtual page boundary = 4K (current mr_nvme_pg_size is 4K).
1934 * set maximum io transfer = MDTS of NVME device provided by MR firmware.
1935 *
1936 * MR firmware provides value in KB. Caller of this function converts
1937 * kb into bytes.
1938 *
1939 * e.a MDTS=5 means 2^5 * nvme page size. (In case of 4K page size,
1940 * MR firmware provides value 128 as (32 * 4K) = 128K.
1941 *
1942 * @sdev: scsi device
1943 * @max_io_size: maximum io transfer size
1944 *
1945 */
1946 static inline void
1947 megasas_set_nvme_device_properties(struct scsi_device *sdev, u32 max_io_size)
1948 {
1949 struct megasas_instance *instance;
1950 u32 mr_nvme_pg_size;
1951
1952 instance = (struct megasas_instance *)sdev->host->hostdata;
1953 mr_nvme_pg_size = max_t(u32, instance->nvme_page_size,
1954 MR_DEFAULT_NVME_PAGE_SIZE);
1955
1956 blk_queue_max_hw_sectors(sdev->request_queue, (max_io_size / 512));
1957
1958 blk_queue_flag_set(QUEUE_FLAG_NOMERGES, sdev->request_queue);
1959 blk_queue_virt_boundary(sdev->request_queue, mr_nvme_pg_size - 1);
1960 }
1961
1962 /*
1963 * megasas_set_fw_assisted_qd -
1964 * set device queue depth to can_queue
1965 * set device queue depth to fw assisted qd
1966 *
1967 * @sdev: scsi device
1968 * @is_target_prop true, if fw provided target properties.
1969 */
1970 static void megasas_set_fw_assisted_qd(struct scsi_device *sdev,
1971 bool is_target_prop)
1972 {
1973 u8 interface_type;
1974 u32 device_qd = MEGASAS_DEFAULT_CMD_PER_LUN;
1975 u32 tgt_device_qd;
1976 struct megasas_instance *instance;
1977 struct MR_PRIV_DEVICE *mr_device_priv_data;
1978
1979 instance = megasas_lookup_instance(sdev->host->host_no);
1980 mr_device_priv_data = sdev->hostdata;
1981 interface_type = mr_device_priv_data->interface_type;
1982
1983 switch (interface_type) {
1984 case SAS_PD:
1985 device_qd = MEGASAS_SAS_QD;
1986 break;
1987 case SATA_PD:
1988 device_qd = MEGASAS_SATA_QD;
1989 break;
1990 case NVME_PD:
1991 device_qd = MEGASAS_NVME_QD;
1992 break;
1993 }
1994
1995 if (is_target_prop) {
1996 tgt_device_qd = le32_to_cpu(instance->tgt_prop->device_qdepth);
1997 if (tgt_device_qd)
1998 device_qd = min(instance->host->can_queue,
1999 (int)tgt_device_qd);
2000 }
2001
2002 if (instance->enable_sdev_max_qd && interface_type != UNKNOWN_DRIVE)
2003 device_qd = instance->host->can_queue;
2004
2005 scsi_change_queue_depth(sdev, device_qd);
2006 }
2007
2008 /*
2009 * megasas_set_static_target_properties -
2010 * Device property set by driver are static and it is not required to be
2011 * updated after OCR.
2012 *
2013 * set io timeout
2014 * set device queue depth
2015 * set nvme device properties. see - megasas_set_nvme_device_properties
2016 *
2017 * @sdev: scsi device
2018 * @is_target_prop true, if fw provided target properties.
2019 */
2020 static void megasas_set_static_target_properties(struct scsi_device *sdev,
2021 bool is_target_prop)
2022 {
2023 u32 max_io_size_kb = MR_DEFAULT_NVME_MDTS_KB;
2024 struct megasas_instance *instance;
2025
2026 instance = megasas_lookup_instance(sdev->host->host_no);
2027
2028 /*
2029 * The RAID firmware may require extended timeouts.
2030 */
2031 blk_queue_rq_timeout(sdev->request_queue, scmd_timeout * HZ);
2032
2033 /* max_io_size_kb will be set to non zero for
2034 * nvme based vd and syspd.
2035 */
2036 if (is_target_prop)
2037 max_io_size_kb = le32_to_cpu(instance->tgt_prop->max_io_size_kb);
2038
2039 if (instance->nvme_page_size && max_io_size_kb)
2040 megasas_set_nvme_device_properties(sdev, (max_io_size_kb << 10));
2041
2042 megasas_set_fw_assisted_qd(sdev, is_target_prop);
2043 }
2044
2045
2046 static int megasas_slave_configure(struct scsi_device *sdev)
2047 {
2048 u16 pd_index = 0;
2049 struct megasas_instance *instance;
2050 int ret_target_prop = DCMD_FAILED;
2051 bool is_target_prop = false;
2052
2053 instance = megasas_lookup_instance(sdev->host->host_no);
2054 if (instance->pd_list_not_supported) {
2055 if (!MEGASAS_IS_LOGICAL(sdev) && sdev->type == TYPE_DISK) {
2056 pd_index = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) +
2057 sdev->id;
2058 if (instance->pd_list[pd_index].driveState !=
2059 MR_PD_STATE_SYSTEM)
2060 return -ENXIO;
2061 }
2062 }
2063
2064 mutex_lock(&instance->reset_mutex);
2065 /* Send DCMD to Firmware and cache the information */
2066 if ((instance->pd_info) && !MEGASAS_IS_LOGICAL(sdev))
2067 megasas_get_pd_info(instance, sdev);
2068
2069 /* Some ventura firmware may not have instance->nvme_page_size set.
2070 * Do not send MR_DCMD_DRV_GET_TARGET_PROP
2071 */
2072 if ((instance->tgt_prop) && (instance->nvme_page_size))
2073 ret_target_prop = megasas_get_target_prop(instance, sdev);
2074
2075 is_target_prop = (ret_target_prop == DCMD_SUCCESS) ? true : false;
2076 megasas_set_static_target_properties(sdev, is_target_prop);
2077
2078 /* This sdev property may change post OCR */
2079 megasas_set_dynamic_target_properties(sdev, is_target_prop);
2080
2081 mutex_unlock(&instance->reset_mutex);
2082
2083 return 0;
2084 }
2085
2086 static int megasas_slave_alloc(struct scsi_device *sdev)
2087 {
2088 u16 pd_index = 0;
2089 struct megasas_instance *instance ;
2090 struct MR_PRIV_DEVICE *mr_device_priv_data;
2091
2092 instance = megasas_lookup_instance(sdev->host->host_no);
2093 if (!MEGASAS_IS_LOGICAL(sdev)) {
2094 /*
2095 * Open the OS scan to the SYSTEM PD
2096 */
2097 pd_index =
2098 (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) +
2099 sdev->id;
2100 if ((instance->pd_list_not_supported ||
2101 instance->pd_list[pd_index].driveState ==
2102 MR_PD_STATE_SYSTEM)) {
2103 goto scan_target;
2104 }
2105 return -ENXIO;
2106 }
2107
2108 scan_target:
2109 mr_device_priv_data = kzalloc(sizeof(*mr_device_priv_data),
2110 GFP_KERNEL);
2111 if (!mr_device_priv_data)
2112 return -ENOMEM;
2113 sdev->hostdata = mr_device_priv_data;
2114
2115 atomic_set(&mr_device_priv_data->r1_ldio_hint,
2116 instance->r1_ldio_hint_default);
2117 return 0;
2118 }
2119
2120 static void megasas_slave_destroy(struct scsi_device *sdev)
2121 {
2122 kfree(sdev->hostdata);
2123 sdev->hostdata = NULL;
2124 }
2125
2126 /*
2127 * megasas_complete_outstanding_ioctls - Complete outstanding ioctls after a
2128 * kill adapter
2129 * @instance: Adapter soft state
2130 *
2131 */
2132 static void megasas_complete_outstanding_ioctls(struct megasas_instance *instance)
2133 {
2134 int i;
2135 struct megasas_cmd *cmd_mfi;
2136 struct megasas_cmd_fusion *cmd_fusion;
2137 struct fusion_context *fusion = instance->ctrl_context;
2138
2139 /* Find all outstanding ioctls */
2140 if (fusion) {
2141 for (i = 0; i < instance->max_fw_cmds; i++) {
2142 cmd_fusion = fusion->cmd_list[i];
2143 if (cmd_fusion->sync_cmd_idx != (u32)ULONG_MAX) {
2144 cmd_mfi = instance->cmd_list[cmd_fusion->sync_cmd_idx];
2145 if (cmd_mfi->sync_cmd &&
2146 (cmd_mfi->frame->hdr.cmd != MFI_CMD_ABORT)) {
2147 cmd_mfi->frame->hdr.cmd_status =
2148 MFI_STAT_WRONG_STATE;
2149 megasas_complete_cmd(instance,
2150 cmd_mfi, DID_OK);
2151 }
2152 }
2153 }
2154 } else {
2155 for (i = 0; i < instance->max_fw_cmds; i++) {
2156 cmd_mfi = instance->cmd_list[i];
2157 if (cmd_mfi->sync_cmd && cmd_mfi->frame->hdr.cmd !=
2158 MFI_CMD_ABORT)
2159 megasas_complete_cmd(instance, cmd_mfi, DID_OK);
2160 }
2161 }
2162 }
2163
2164
2165 void megaraid_sas_kill_hba(struct megasas_instance *instance)
2166 {
2167 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
2168 dev_warn(&instance->pdev->dev,
2169 "Adapter already dead, skipping kill HBA\n");
2170 return;
2171 }
2172
2173 /* Set critical error to block I/O & ioctls in case caller didn't */
2174 atomic_set(&instance->adprecovery, MEGASAS_HW_CRITICAL_ERROR);
2175 /* Wait 1 second to ensure IO or ioctls in build have posted */
2176 msleep(1000);
2177 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
2178 (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY) ||
2179 (instance->adapter_type != MFI_SERIES)) {
2180 if (!instance->requestorId) {
2181 writel(MFI_STOP_ADP, &instance->reg_set->doorbell);
2182 /* Flush */
2183 readl(&instance->reg_set->doorbell);
2184 }
2185 if (instance->requestorId && instance->peerIsPresent)
2186 memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS);
2187 } else {
2188 writel(MFI_STOP_ADP,
2189 &instance->reg_set->inbound_doorbell);
2190 }
2191 /* Complete outstanding ioctls when adapter is killed */
2192 megasas_complete_outstanding_ioctls(instance);
2193 }
2194
2195 /**
2196 * megasas_check_and_restore_queue_depth - Check if queue depth needs to be
2197 * restored to max value
2198 * @instance: Adapter soft state
2199 *
2200 */
2201 void
2202 megasas_check_and_restore_queue_depth(struct megasas_instance *instance)
2203 {
2204 unsigned long flags;
2205
2206 if (instance->flag & MEGASAS_FW_BUSY
2207 && time_after(jiffies, instance->last_time + 5 * HZ)
2208 && atomic_read(&instance->fw_outstanding) <
2209 instance->throttlequeuedepth + 1) {
2210
2211 spin_lock_irqsave(instance->host->host_lock, flags);
2212 instance->flag &= ~MEGASAS_FW_BUSY;
2213
2214 instance->host->can_queue = instance->cur_can_queue;
2215 spin_unlock_irqrestore(instance->host->host_lock, flags);
2216 }
2217 }
2218
2219 /**
2220 * megasas_complete_cmd_dpc - Returns FW's controller structure
2221 * @instance_addr: Address of adapter soft state
2222 *
2223 * Tasklet to complete cmds
2224 */
2225 static void megasas_complete_cmd_dpc(unsigned long instance_addr)
2226 {
2227 u32 producer;
2228 u32 consumer;
2229 u32 context;
2230 struct megasas_cmd *cmd;
2231 struct megasas_instance *instance =
2232 (struct megasas_instance *)instance_addr;
2233 unsigned long flags;
2234
2235 /* If we have already declared adapter dead, donot complete cmds */
2236 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR)
2237 return;
2238
2239 spin_lock_irqsave(&instance->completion_lock, flags);
2240
2241 producer = le32_to_cpu(*instance->producer);
2242 consumer = le32_to_cpu(*instance->consumer);
2243
2244 while (consumer != producer) {
2245 context = le32_to_cpu(instance->reply_queue[consumer]);
2246 if (context >= instance->max_fw_cmds) {
2247 dev_err(&instance->pdev->dev, "Unexpected context value %x\n",
2248 context);
2249 BUG();
2250 }
2251
2252 cmd = instance->cmd_list[context];
2253
2254 megasas_complete_cmd(instance, cmd, DID_OK);
2255
2256 consumer++;
2257 if (consumer == (instance->max_fw_cmds + 1)) {
2258 consumer = 0;
2259 }
2260 }
2261
2262 *instance->consumer = cpu_to_le32(producer);
2263
2264 spin_unlock_irqrestore(&instance->completion_lock, flags);
2265
2266 /*
2267 * Check if we can restore can_queue
2268 */
2269 megasas_check_and_restore_queue_depth(instance);
2270 }
2271
2272 static void megasas_sriov_heartbeat_handler(struct timer_list *t);
2273
2274 /**
2275 * megasas_start_timer - Initializes sriov heartbeat timer object
2276 * @instance: Adapter soft state
2277 *
2278 */
2279 void megasas_start_timer(struct megasas_instance *instance)
2280 {
2281 struct timer_list *timer = &instance->sriov_heartbeat_timer;
2282
2283 timer_setup(timer, megasas_sriov_heartbeat_handler, 0);
2284 timer->expires = jiffies + MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF;
2285 add_timer(timer);
2286 }
2287
2288 static void
2289 megasas_internal_reset_defer_cmds(struct megasas_instance *instance);
2290
2291 static void
2292 process_fw_state_change_wq(struct work_struct *work);
2293
2294 static void megasas_do_ocr(struct megasas_instance *instance)
2295 {
2296 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS1064R) ||
2297 (instance->pdev->device == PCI_DEVICE_ID_DELL_PERC5) ||
2298 (instance->pdev->device == PCI_DEVICE_ID_LSI_VERDE_ZCR)) {
2299 *instance->consumer = cpu_to_le32(MEGASAS_ADPRESET_INPROG_SIGN);
2300 }
2301 instance->instancet->disable_intr(instance);
2302 atomic_set(&instance->adprecovery, MEGASAS_ADPRESET_SM_INFAULT);
2303 instance->issuepend_done = 0;
2304
2305 atomic_set(&instance->fw_outstanding, 0);
2306 megasas_internal_reset_defer_cmds(instance);
2307 process_fw_state_change_wq(&instance->work_init);
2308 }
2309
2310 static int megasas_get_ld_vf_affiliation_111(struct megasas_instance *instance,
2311 int initial)
2312 {
2313 struct megasas_cmd *cmd;
2314 struct megasas_dcmd_frame *dcmd;
2315 struct MR_LD_VF_AFFILIATION_111 *new_affiliation_111 = NULL;
2316 dma_addr_t new_affiliation_111_h;
2317 int ld, retval = 0;
2318 u8 thisVf;
2319
2320 cmd = megasas_get_cmd(instance);
2321
2322 if (!cmd) {
2323 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_vf_affiliation_111:"
2324 "Failed to get cmd for scsi%d\n",
2325 instance->host->host_no);
2326 return -ENOMEM;
2327 }
2328
2329 dcmd = &cmd->frame->dcmd;
2330
2331 if (!instance->vf_affiliation_111) {
2332 dev_warn(&instance->pdev->dev, "SR-IOV: Couldn't get LD/VF "
2333 "affiliation for scsi%d\n", instance->host->host_no);
2334 megasas_return_cmd(instance, cmd);
2335 return -ENOMEM;
2336 }
2337
2338 if (initial)
2339 memset(instance->vf_affiliation_111, 0,
2340 sizeof(struct MR_LD_VF_AFFILIATION_111));
2341 else {
2342 new_affiliation_111 =
2343 dma_alloc_coherent(&instance->pdev->dev,
2344 sizeof(struct MR_LD_VF_AFFILIATION_111),
2345 &new_affiliation_111_h, GFP_KERNEL);
2346 if (!new_affiliation_111) {
2347 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate "
2348 "memory for new affiliation for scsi%d\n",
2349 instance->host->host_no);
2350 megasas_return_cmd(instance, cmd);
2351 return -ENOMEM;
2352 }
2353 }
2354
2355 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
2356
2357 dcmd->cmd = MFI_CMD_DCMD;
2358 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
2359 dcmd->sge_count = 1;
2360 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_BOTH);
2361 dcmd->timeout = 0;
2362 dcmd->pad_0 = 0;
2363 dcmd->data_xfer_len =
2364 cpu_to_le32(sizeof(struct MR_LD_VF_AFFILIATION_111));
2365 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_VF_MAP_GET_ALL_LDS_111);
2366
2367 if (initial)
2368 dcmd->sgl.sge32[0].phys_addr =
2369 cpu_to_le32(instance->vf_affiliation_111_h);
2370 else
2371 dcmd->sgl.sge32[0].phys_addr =
2372 cpu_to_le32(new_affiliation_111_h);
2373
2374 dcmd->sgl.sge32[0].length = cpu_to_le32(
2375 sizeof(struct MR_LD_VF_AFFILIATION_111));
2376
2377 dev_warn(&instance->pdev->dev, "SR-IOV: Getting LD/VF affiliation for "
2378 "scsi%d\n", instance->host->host_no);
2379
2380 if (megasas_issue_blocked_cmd(instance, cmd, 0) != DCMD_SUCCESS) {
2381 dev_warn(&instance->pdev->dev, "SR-IOV: LD/VF affiliation DCMD"
2382 " failed with status 0x%x for scsi%d\n",
2383 dcmd->cmd_status, instance->host->host_no);
2384 retval = 1; /* Do a scan if we couldn't get affiliation */
2385 goto out;
2386 }
2387
2388 if (!initial) {
2389 thisVf = new_affiliation_111->thisVf;
2390 for (ld = 0 ; ld < new_affiliation_111->vdCount; ld++)
2391 if (instance->vf_affiliation_111->map[ld].policy[thisVf] !=
2392 new_affiliation_111->map[ld].policy[thisVf]) {
2393 dev_warn(&instance->pdev->dev, "SR-IOV: "
2394 "Got new LD/VF affiliation for scsi%d\n",
2395 instance->host->host_no);
2396 memcpy(instance->vf_affiliation_111,
2397 new_affiliation_111,
2398 sizeof(struct MR_LD_VF_AFFILIATION_111));
2399 retval = 1;
2400 goto out;
2401 }
2402 }
2403 out:
2404 if (new_affiliation_111) {
2405 dma_free_coherent(&instance->pdev->dev,
2406 sizeof(struct MR_LD_VF_AFFILIATION_111),
2407 new_affiliation_111,
2408 new_affiliation_111_h);
2409 }
2410
2411 megasas_return_cmd(instance, cmd);
2412
2413 return retval;
2414 }
2415
2416 static int megasas_get_ld_vf_affiliation_12(struct megasas_instance *instance,
2417 int initial)
2418 {
2419 struct megasas_cmd *cmd;
2420 struct megasas_dcmd_frame *dcmd;
2421 struct MR_LD_VF_AFFILIATION *new_affiliation = NULL;
2422 struct MR_LD_VF_MAP *newmap = NULL, *savedmap = NULL;
2423 dma_addr_t new_affiliation_h;
2424 int i, j, retval = 0, found = 0, doscan = 0;
2425 u8 thisVf;
2426
2427 cmd = megasas_get_cmd(instance);
2428
2429 if (!cmd) {
2430 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_vf_affiliation12: "
2431 "Failed to get cmd for scsi%d\n",
2432 instance->host->host_no);
2433 return -ENOMEM;
2434 }
2435
2436 dcmd = &cmd->frame->dcmd;
2437
2438 if (!instance->vf_affiliation) {
2439 dev_warn(&instance->pdev->dev, "SR-IOV: Couldn't get LD/VF "
2440 "affiliation for scsi%d\n", instance->host->host_no);
2441 megasas_return_cmd(instance, cmd);
2442 return -ENOMEM;
2443 }
2444
2445 if (initial)
2446 memset(instance->vf_affiliation, 0, (MAX_LOGICAL_DRIVES + 1) *
2447 sizeof(struct MR_LD_VF_AFFILIATION));
2448 else {
2449 new_affiliation =
2450 dma_alloc_coherent(&instance->pdev->dev,
2451 (MAX_LOGICAL_DRIVES + 1) * sizeof(struct MR_LD_VF_AFFILIATION),
2452 &new_affiliation_h, GFP_KERNEL);
2453 if (!new_affiliation) {
2454 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate "
2455 "memory for new affiliation for scsi%d\n",
2456 instance->host->host_no);
2457 megasas_return_cmd(instance, cmd);
2458 return -ENOMEM;
2459 }
2460 }
2461
2462 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
2463
2464 dcmd->cmd = MFI_CMD_DCMD;
2465 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
2466 dcmd->sge_count = 1;
2467 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_BOTH);
2468 dcmd->timeout = 0;
2469 dcmd->pad_0 = 0;
2470 dcmd->data_xfer_len = cpu_to_le32((MAX_LOGICAL_DRIVES + 1) *
2471 sizeof(struct MR_LD_VF_AFFILIATION));
2472 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_VF_MAP_GET_ALL_LDS);
2473
2474 if (initial)
2475 dcmd->sgl.sge32[0].phys_addr =
2476 cpu_to_le32(instance->vf_affiliation_h);
2477 else
2478 dcmd->sgl.sge32[0].phys_addr =
2479 cpu_to_le32(new_affiliation_h);
2480
2481 dcmd->sgl.sge32[0].length = cpu_to_le32((MAX_LOGICAL_DRIVES + 1) *
2482 sizeof(struct MR_LD_VF_AFFILIATION));
2483
2484 dev_warn(&instance->pdev->dev, "SR-IOV: Getting LD/VF affiliation for "
2485 "scsi%d\n", instance->host->host_no);
2486
2487
2488 if (megasas_issue_blocked_cmd(instance, cmd, 0) != DCMD_SUCCESS) {
2489 dev_warn(&instance->pdev->dev, "SR-IOV: LD/VF affiliation DCMD"
2490 " failed with status 0x%x for scsi%d\n",
2491 dcmd->cmd_status, instance->host->host_no);
2492 retval = 1; /* Do a scan if we couldn't get affiliation */
2493 goto out;
2494 }
2495
2496 if (!initial) {
2497 if (!new_affiliation->ldCount) {
2498 dev_warn(&instance->pdev->dev, "SR-IOV: Got new LD/VF "
2499 "affiliation for passive path for scsi%d\n",
2500 instance->host->host_no);
2501 retval = 1;
2502 goto out;
2503 }
2504 newmap = new_affiliation->map;
2505 savedmap = instance->vf_affiliation->map;
2506 thisVf = new_affiliation->thisVf;
2507 for (i = 0 ; i < new_affiliation->ldCount; i++) {
2508 found = 0;
2509 for (j = 0; j < instance->vf_affiliation->ldCount;
2510 j++) {
2511 if (newmap->ref.targetId ==
2512 savedmap->ref.targetId) {
2513 found = 1;
2514 if (newmap->policy[thisVf] !=
2515 savedmap->policy[thisVf]) {
2516 doscan = 1;
2517 goto out;
2518 }
2519 }
2520 savedmap = (struct MR_LD_VF_MAP *)
2521 ((unsigned char *)savedmap +
2522 savedmap->size);
2523 }
2524 if (!found && newmap->policy[thisVf] !=
2525 MR_LD_ACCESS_HIDDEN) {
2526 doscan = 1;
2527 goto out;
2528 }
2529 newmap = (struct MR_LD_VF_MAP *)
2530 ((unsigned char *)newmap + newmap->size);
2531 }
2532
2533 newmap = new_affiliation->map;
2534 savedmap = instance->vf_affiliation->map;
2535
2536 for (i = 0 ; i < instance->vf_affiliation->ldCount; i++) {
2537 found = 0;
2538 for (j = 0 ; j < new_affiliation->ldCount; j++) {
2539 if (savedmap->ref.targetId ==
2540 newmap->ref.targetId) {
2541 found = 1;
2542 if (savedmap->policy[thisVf] !=
2543 newmap->policy[thisVf]) {
2544 doscan = 1;
2545 goto out;
2546 }
2547 }
2548 newmap = (struct MR_LD_VF_MAP *)
2549 ((unsigned char *)newmap +
2550 newmap->size);
2551 }
2552 if (!found && savedmap->policy[thisVf] !=
2553 MR_LD_ACCESS_HIDDEN) {
2554 doscan = 1;
2555 goto out;
2556 }
2557 savedmap = (struct MR_LD_VF_MAP *)
2558 ((unsigned char *)savedmap +
2559 savedmap->size);
2560 }
2561 }
2562 out:
2563 if (doscan) {
2564 dev_warn(&instance->pdev->dev, "SR-IOV: Got new LD/VF "
2565 "affiliation for scsi%d\n", instance->host->host_no);
2566 memcpy(instance->vf_affiliation, new_affiliation,
2567 new_affiliation->size);
2568 retval = 1;
2569 }
2570
2571 if (new_affiliation)
2572 dma_free_coherent(&instance->pdev->dev,
2573 (MAX_LOGICAL_DRIVES + 1) *
2574 sizeof(struct MR_LD_VF_AFFILIATION),
2575 new_affiliation, new_affiliation_h);
2576 megasas_return_cmd(instance, cmd);
2577
2578 return retval;
2579 }
2580
2581 /* This function will get the current SR-IOV LD/VF affiliation */
2582 static int megasas_get_ld_vf_affiliation(struct megasas_instance *instance,
2583 int initial)
2584 {
2585 int retval;
2586
2587 if (instance->PlasmaFW111)
2588 retval = megasas_get_ld_vf_affiliation_111(instance, initial);
2589 else
2590 retval = megasas_get_ld_vf_affiliation_12(instance, initial);
2591 return retval;
2592 }
2593
2594 /* This function will tell FW to start the SR-IOV heartbeat */
2595 int megasas_sriov_start_heartbeat(struct megasas_instance *instance,
2596 int initial)
2597 {
2598 struct megasas_cmd *cmd;
2599 struct megasas_dcmd_frame *dcmd;
2600 int retval = 0;
2601
2602 cmd = megasas_get_cmd(instance);
2603
2604 if (!cmd) {
2605 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_sriov_start_heartbeat: "
2606 "Failed to get cmd for scsi%d\n",
2607 instance->host->host_no);
2608 return -ENOMEM;
2609 }
2610
2611 dcmd = &cmd->frame->dcmd;
2612
2613 if (initial) {
2614 instance->hb_host_mem =
2615 dma_alloc_coherent(&instance->pdev->dev,
2616 sizeof(struct MR_CTRL_HB_HOST_MEM),
2617 &instance->hb_host_mem_h,
2618 GFP_KERNEL);
2619 if (!instance->hb_host_mem) {
2620 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate"
2621 " memory for heartbeat host memory for scsi%d\n",
2622 instance->host->host_no);
2623 retval = -ENOMEM;
2624 goto out;
2625 }
2626 }
2627
2628 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
2629
2630 dcmd->mbox.s[0] = cpu_to_le16(sizeof(struct MR_CTRL_HB_HOST_MEM));
2631 dcmd->cmd = MFI_CMD_DCMD;
2632 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
2633 dcmd->sge_count = 1;
2634 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_BOTH);
2635 dcmd->timeout = 0;
2636 dcmd->pad_0 = 0;
2637 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_CTRL_HB_HOST_MEM));
2638 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_SHARED_HOST_MEM_ALLOC);
2639
2640 megasas_set_dma_settings(instance, dcmd, instance->hb_host_mem_h,
2641 sizeof(struct MR_CTRL_HB_HOST_MEM));
2642
2643 dev_warn(&instance->pdev->dev, "SR-IOV: Starting heartbeat for scsi%d\n",
2644 instance->host->host_no);
2645
2646 if ((instance->adapter_type != MFI_SERIES) &&
2647 !instance->mask_interrupts)
2648 retval = megasas_issue_blocked_cmd(instance, cmd,
2649 MEGASAS_ROUTINE_WAIT_TIME_VF);
2650 else
2651 retval = megasas_issue_polled(instance, cmd);
2652
2653 if (retval) {
2654 dev_warn(&instance->pdev->dev, "SR-IOV: MR_DCMD_CTRL_SHARED_HOST"
2655 "_MEM_ALLOC DCMD %s for scsi%d\n",
2656 (dcmd->cmd_status == MFI_STAT_INVALID_STATUS) ?
2657 "timed out" : "failed", instance->host->host_no);
2658 retval = 1;
2659 }
2660
2661 out:
2662 megasas_return_cmd(instance, cmd);
2663
2664 return retval;
2665 }
2666
2667 /* Handler for SR-IOV heartbeat */
2668 static void megasas_sriov_heartbeat_handler(struct timer_list *t)
2669 {
2670 struct megasas_instance *instance =
2671 from_timer(instance, t, sriov_heartbeat_timer);
2672
2673 if (instance->hb_host_mem->HB.fwCounter !=
2674 instance->hb_host_mem->HB.driverCounter) {
2675 instance->hb_host_mem->HB.driverCounter =
2676 instance->hb_host_mem->HB.fwCounter;
2677 mod_timer(&instance->sriov_heartbeat_timer,
2678 jiffies + MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF);
2679 } else {
2680 dev_warn(&instance->pdev->dev, "SR-IOV: Heartbeat never "
2681 "completed for scsi%d\n", instance->host->host_no);
2682 schedule_work(&instance->work_init);
2683 }
2684 }
2685
2686 /**
2687 * megasas_wait_for_outstanding - Wait for all outstanding cmds
2688 * @instance: Adapter soft state
2689 *
2690 * This function waits for up to MEGASAS_RESET_WAIT_TIME seconds for FW to
2691 * complete all its outstanding commands. Returns error if one or more IOs
2692 * are pending after this time period. It also marks the controller dead.
2693 */
2694 static int megasas_wait_for_outstanding(struct megasas_instance *instance)
2695 {
2696 int i, sl, outstanding;
2697 u32 reset_index;
2698 u32 wait_time = MEGASAS_RESET_WAIT_TIME;
2699 unsigned long flags;
2700 struct list_head clist_local;
2701 struct megasas_cmd *reset_cmd;
2702 u32 fw_state;
2703
2704 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
2705 dev_info(&instance->pdev->dev, "%s:%d HBA is killed.\n",
2706 __func__, __LINE__);
2707 return FAILED;
2708 }
2709
2710 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) {
2711
2712 INIT_LIST_HEAD(&clist_local);
2713 spin_lock_irqsave(&instance->hba_lock, flags);
2714 list_splice_init(&instance->internal_reset_pending_q,
2715 &clist_local);
2716 spin_unlock_irqrestore(&instance->hba_lock, flags);
2717
2718 dev_notice(&instance->pdev->dev, "HBA reset wait ...\n");
2719 for (i = 0; i < wait_time; i++) {
2720 msleep(1000);
2721 if (atomic_read(&instance->adprecovery) == MEGASAS_HBA_OPERATIONAL)
2722 break;
2723 }
2724
2725 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) {
2726 dev_notice(&instance->pdev->dev, "reset: Stopping HBA.\n");
2727 atomic_set(&instance->adprecovery, MEGASAS_HW_CRITICAL_ERROR);
2728 return FAILED;
2729 }
2730
2731 reset_index = 0;
2732 while (!list_empty(&clist_local)) {
2733 reset_cmd = list_entry((&clist_local)->next,
2734 struct megasas_cmd, list);
2735 list_del_init(&reset_cmd->list);
2736 if (reset_cmd->scmd) {
2737 reset_cmd->scmd->result = DID_REQUEUE << 16;
2738 dev_notice(&instance->pdev->dev, "%d:%p reset [%02x]\n",
2739 reset_index, reset_cmd,
2740 reset_cmd->scmd->cmnd[0]);
2741
2742 reset_cmd->scmd->scsi_done(reset_cmd->scmd);
2743 megasas_return_cmd(instance, reset_cmd);
2744 } else if (reset_cmd->sync_cmd) {
2745 dev_notice(&instance->pdev->dev, "%p synch cmds"
2746 "reset queue\n",
2747 reset_cmd);
2748
2749 reset_cmd->cmd_status_drv = DCMD_INIT;
2750 instance->instancet->fire_cmd(instance,
2751 reset_cmd->frame_phys_addr,
2752 0, instance->reg_set);
2753 } else {
2754 dev_notice(&instance->pdev->dev, "%p unexpected"
2755 "cmds lst\n",
2756 reset_cmd);
2757 }
2758 reset_index++;
2759 }
2760
2761 return SUCCESS;
2762 }
2763
2764 for (i = 0; i < resetwaittime; i++) {
2765 outstanding = atomic_read(&instance->fw_outstanding);
2766
2767 if (!outstanding)
2768 break;
2769
2770 if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) {
2771 dev_notice(&instance->pdev->dev, "[%2d]waiting for %d "
2772 "commands to complete\n",i,outstanding);
2773 /*
2774 * Call cmd completion routine. Cmd to be
2775 * be completed directly without depending on isr.
2776 */
2777 megasas_complete_cmd_dpc((unsigned long)instance);
2778 }
2779
2780 msleep(1000);
2781 }
2782
2783 i = 0;
2784 outstanding = atomic_read(&instance->fw_outstanding);
2785 fw_state = instance->instancet->read_fw_status_reg(instance) & MFI_STATE_MASK;
2786
2787 if ((!outstanding && (fw_state == MFI_STATE_OPERATIONAL)))
2788 goto no_outstanding;
2789
2790 if (instance->disableOnlineCtrlReset)
2791 goto kill_hba_and_failed;
2792 do {
2793 if ((fw_state == MFI_STATE_FAULT) || atomic_read(&instance->fw_outstanding)) {
2794 dev_info(&instance->pdev->dev,
2795 "%s:%d waiting_for_outstanding: before issue OCR. FW state = 0x%x, outstanding 0x%x\n",
2796 __func__, __LINE__, fw_state, atomic_read(&instance->fw_outstanding));
2797 if (i == 3)
2798 goto kill_hba_and_failed;
2799 megasas_do_ocr(instance);
2800
2801 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
2802 dev_info(&instance->pdev->dev, "%s:%d OCR failed and HBA is killed.\n",
2803 __func__, __LINE__);
2804 return FAILED;
2805 }
2806 dev_info(&instance->pdev->dev, "%s:%d waiting_for_outstanding: after issue OCR.\n",
2807 __func__, __LINE__);
2808
2809 for (sl = 0; sl < 10; sl++)
2810 msleep(500);
2811
2812 outstanding = atomic_read(&instance->fw_outstanding);
2813
2814 fw_state = instance->instancet->read_fw_status_reg(instance) & MFI_STATE_MASK;
2815 if ((!outstanding && (fw_state == MFI_STATE_OPERATIONAL)))
2816 goto no_outstanding;
2817 }
2818 i++;
2819 } while (i <= 3);
2820
2821 no_outstanding:
2822
2823 dev_info(&instance->pdev->dev, "%s:%d no more pending commands remain after reset handling.\n",
2824 __func__, __LINE__);
2825 return SUCCESS;
2826
2827 kill_hba_and_failed:
2828
2829 /* Reset not supported, kill adapter */
2830 dev_info(&instance->pdev->dev, "%s:%d killing adapter scsi%d"
2831 " disableOnlineCtrlReset %d fw_outstanding %d \n",
2832 __func__, __LINE__, instance->host->host_no, instance->disableOnlineCtrlReset,
2833 atomic_read(&instance->fw_outstanding));
2834 megasas_dump_pending_frames(instance);
2835 megaraid_sas_kill_hba(instance);
2836
2837 return FAILED;
2838 }
2839
2840 /**
2841 * megasas_generic_reset - Generic reset routine
2842 * @scmd: Mid-layer SCSI command
2843 *
2844 * This routine implements a generic reset handler for device, bus and host
2845 * reset requests. Device, bus and host specific reset handlers can use this
2846 * function after they do their specific tasks.
2847 */
2848 static int megasas_generic_reset(struct scsi_cmnd *scmd)
2849 {
2850 int ret_val;
2851 struct megasas_instance *instance;
2852
2853 instance = (struct megasas_instance *)scmd->device->host->hostdata;
2854
2855 scmd_printk(KERN_NOTICE, scmd, "megasas: RESET cmd=%x retries=%x\n",
2856 scmd->cmnd[0], scmd->retries);
2857
2858 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
2859 dev_err(&instance->pdev->dev, "cannot recover from previous reset failures\n");
2860 return FAILED;
2861 }
2862
2863 ret_val = megasas_wait_for_outstanding(instance);
2864 if (ret_val == SUCCESS)
2865 dev_notice(&instance->pdev->dev, "reset successful\n");
2866 else
2867 dev_err(&instance->pdev->dev, "failed to do reset\n");
2868
2869 return ret_val;
2870 }
2871
2872 /**
2873 * megasas_reset_timer - quiesce the adapter if required
2874 * @scmd: scsi cmnd
2875 *
2876 * Sets the FW busy flag and reduces the host->can_queue if the
2877 * cmd has not been completed within the timeout period.
2878 */
2879 static enum
2880 blk_eh_timer_return megasas_reset_timer(struct scsi_cmnd *scmd)
2881 {
2882 struct megasas_instance *instance;
2883 unsigned long flags;
2884
2885 if (time_after(jiffies, scmd->jiffies_at_alloc +
2886 (scmd_timeout * 2) * HZ)) {
2887 return BLK_EH_DONE;
2888 }
2889
2890 instance = (struct megasas_instance *)scmd->device->host->hostdata;
2891 if (!(instance->flag & MEGASAS_FW_BUSY)) {
2892 /* FW is busy, throttle IO */
2893 spin_lock_irqsave(instance->host->host_lock, flags);
2894
2895 instance->host->can_queue = instance->throttlequeuedepth;
2896 instance->last_time = jiffies;
2897 instance->flag |= MEGASAS_FW_BUSY;
2898
2899 spin_unlock_irqrestore(instance->host->host_lock, flags);
2900 }
2901 return BLK_EH_RESET_TIMER;
2902 }
2903
2904 /**
2905 * megasas_dump - This function will print hexdump of provided buffer.
2906 * @buf: Buffer to be dumped
2907 * @sz: Size in bytes
2908 * @format: Different formats of dumping e.g. format=n will
2909 * cause only 'n' 32 bit words to be dumped in a single
2910 * line.
2911 */
2912 inline void
2913 megasas_dump(void *buf, int sz, int format)
2914 {
2915 int i;
2916 __le32 *buf_loc = (__le32 *)buf;
2917
2918 for (i = 0; i < (sz / sizeof(__le32)); i++) {
2919 if ((i % format) == 0) {
2920 if (i != 0)
2921 printk(KERN_CONT "\n");
2922 printk(KERN_CONT "%08x: ", (i * 4));
2923 }
2924 printk(KERN_CONT "%08x ", le32_to_cpu(buf_loc[i]));
2925 }
2926 printk(KERN_CONT "\n");
2927 }
2928
2929 /**
2930 * megasas_dump_reg_set - This function will print hexdump of register set
2931 * @reg_set: Register set to be dumped
2932 */
2933 inline void
2934 megasas_dump_reg_set(void __iomem *reg_set)
2935 {
2936 unsigned int i, sz = 256;
2937 u32 __iomem *reg = (u32 __iomem *)reg_set;
2938
2939 for (i = 0; i < (sz / sizeof(u32)); i++)
2940 printk("%08x: %08x\n", (i * 4), readl(&reg[i]));
2941 }
2942
2943 /**
2944 * megasas_dump_fusion_io - This function will print key details
2945 * of SCSI IO
2946 * @scmd: SCSI command pointer of SCSI IO
2947 */
2948 void
2949 megasas_dump_fusion_io(struct scsi_cmnd *scmd)
2950 {
2951 struct megasas_cmd_fusion *cmd;
2952 union MEGASAS_REQUEST_DESCRIPTOR_UNION *req_desc;
2953 struct megasas_instance *instance;
2954
2955 cmd = (struct megasas_cmd_fusion *)scmd->SCp.ptr;
2956 instance = (struct megasas_instance *)scmd->device->host->hostdata;
2957
2958 scmd_printk(KERN_INFO, scmd,
2959 "scmd: (0x%p) retries: 0x%x allowed: 0x%x\n",
2960 scmd, scmd->retries, scmd->allowed);
2961 scsi_print_command(scmd);
2962
2963 if (cmd) {
2964 req_desc = (union MEGASAS_REQUEST_DESCRIPTOR_UNION *)cmd->request_desc;
2965 scmd_printk(KERN_INFO, scmd, "Request descriptor details:\n");
2966 scmd_printk(KERN_INFO, scmd,
2967 "RequestFlags:0x%x MSIxIndex:0x%x SMID:0x%x LMID:0x%x DevHandle:0x%x\n",
2968 req_desc->SCSIIO.RequestFlags,
2969 req_desc->SCSIIO.MSIxIndex, req_desc->SCSIIO.SMID,
2970 req_desc->SCSIIO.LMID, req_desc->SCSIIO.DevHandle);
2971
2972 printk(KERN_INFO "IO request frame:\n");
2973 megasas_dump(cmd->io_request,
2974 MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE, 8);
2975 printk(KERN_INFO "Chain frame:\n");
2976 megasas_dump(cmd->sg_frame,
2977 instance->max_chain_frame_sz, 8);
2978 }
2979
2980 }
2981
2982 /*
2983 * megasas_dump_sys_regs - This function will dump system registers through
2984 * sysfs.
2985 * @reg_set: Pointer to System register set.
2986 * @buf: Buffer to which output is to be written.
2987 * @return: Number of bytes written to buffer.
2988 */
2989 static inline ssize_t
2990 megasas_dump_sys_regs(void __iomem *reg_set, char *buf)
2991 {
2992 unsigned int i, sz = 256;
2993 int bytes_wrote = 0;
2994 char *loc = (char *)buf;
2995 u32 __iomem *reg = (u32 __iomem *)reg_set;
2996
2997 for (i = 0; i < sz / sizeof(u32); i++) {
2998 bytes_wrote += scnprintf(loc + bytes_wrote,
2999 PAGE_SIZE - bytes_wrote,
3000 "%08x: %08x\n", (i * 4),
3001 readl(&reg[i]));
3002 }
3003 return bytes_wrote;
3004 }
3005
3006 /**
3007 * megasas_reset_bus_host - Bus & host reset handler entry point
3008 * @scmd: Mid-layer SCSI command
3009 */
3010 static int megasas_reset_bus_host(struct scsi_cmnd *scmd)
3011 {
3012 int ret;
3013 struct megasas_instance *instance;
3014
3015 instance = (struct megasas_instance *)scmd->device->host->hostdata;
3016
3017 scmd_printk(KERN_INFO, scmd,
3018 "OCR is requested due to IO timeout!!\n");
3019
3020 scmd_printk(KERN_INFO, scmd,
3021 "SCSI host state: %d SCSI host busy: %d FW outstanding: %d\n",
3022 scmd->device->host->shost_state,
3023 scsi_host_busy(scmd->device->host),
3024 atomic_read(&instance->fw_outstanding));
3025 /*
3026 * First wait for all commands to complete
3027 */
3028 if (instance->adapter_type == MFI_SERIES) {
3029 ret = megasas_generic_reset(scmd);
3030 } else {
3031 megasas_dump_fusion_io(scmd);
3032 ret = megasas_reset_fusion(scmd->device->host,
3033 SCSIIO_TIMEOUT_OCR);
3034 }
3035
3036 return ret;
3037 }
3038
3039 /**
3040 * megasas_task_abort - Issues task abort request to firmware
3041 * (supported only for fusion adapters)
3042 * @scmd: SCSI command pointer
3043 */
3044 static int megasas_task_abort(struct scsi_cmnd *scmd)
3045 {
3046 int ret;
3047 struct megasas_instance *instance;
3048
3049 instance = (struct megasas_instance *)scmd->device->host->hostdata;
3050
3051 if (instance->adapter_type != MFI_SERIES)
3052 ret = megasas_task_abort_fusion(scmd);
3053 else {
3054 sdev_printk(KERN_NOTICE, scmd->device, "TASK ABORT not supported\n");
3055 ret = FAILED;
3056 }
3057
3058 return ret;
3059 }
3060
3061 /**
3062 * megasas_reset_target: Issues target reset request to firmware
3063 * (supported only for fusion adapters)
3064 * @scmd: SCSI command pointer
3065 */
3066 static int megasas_reset_target(struct scsi_cmnd *scmd)
3067 {
3068 int ret;
3069 struct megasas_instance *instance;
3070
3071 instance = (struct megasas_instance *)scmd->device->host->hostdata;
3072
3073 if (instance->adapter_type != MFI_SERIES)
3074 ret = megasas_reset_target_fusion(scmd);
3075 else {
3076 sdev_printk(KERN_NOTICE, scmd->device, "TARGET RESET not supported\n");
3077 ret = FAILED;
3078 }
3079
3080 return ret;
3081 }
3082
3083 /**
3084 * megasas_bios_param - Returns disk geometry for a disk
3085 * @sdev: device handle
3086 * @bdev: block device
3087 * @capacity: drive capacity
3088 * @geom: geometry parameters
3089 */
3090 static int
3091 megasas_bios_param(struct scsi_device *sdev, struct block_device *bdev,
3092 sector_t capacity, int geom[])
3093 {
3094 int heads;
3095 int sectors;
3096 sector_t cylinders;
3097 unsigned long tmp;
3098
3099 /* Default heads (64) & sectors (32) */
3100 heads = 64;
3101 sectors = 32;
3102
3103 tmp = heads * sectors;
3104 cylinders = capacity;
3105
3106 sector_div(cylinders, tmp);
3107
3108 /*
3109 * Handle extended translation size for logical drives > 1Gb
3110 */
3111
3112 if (capacity >= 0x200000) {
3113 heads = 255;
3114 sectors = 63;
3115 tmp = heads*sectors;
3116 cylinders = capacity;
3117 sector_div(cylinders, tmp);
3118 }
3119
3120 geom[0] = heads;
3121 geom[1] = sectors;
3122 geom[2] = cylinders;
3123
3124 return 0;
3125 }
3126
3127 static int megasas_map_queues(struct Scsi_Host *shost)
3128 {
3129 struct megasas_instance *instance;
3130
3131 instance = (struct megasas_instance *)shost->hostdata;
3132
3133 if (shost->nr_hw_queues == 1)
3134 return 0;
3135
3136 return blk_mq_pci_map_queues(&shost->tag_set.map[HCTX_TYPE_DEFAULT],
3137 instance->pdev, instance->low_latency_index_start);
3138 }
3139
3140 static void megasas_aen_polling(struct work_struct *work);
3141
3142 /**
3143 * megasas_service_aen - Processes an event notification
3144 * @instance: Adapter soft state
3145 * @cmd: AEN command completed by the ISR
3146 *
3147 * For AEN, driver sends a command down to FW that is held by the FW till an
3148 * event occurs. When an event of interest occurs, FW completes the command
3149 * that it was previously holding.
3150 *
3151 * This routines sends SIGIO signal to processes that have registered with the
3152 * driver for AEN.
3153 */
3154 static void
3155 megasas_service_aen(struct megasas_instance *instance, struct megasas_cmd *cmd)
3156 {
3157 unsigned long flags;
3158
3159 /*
3160 * Don't signal app if it is just an aborted previously registered aen
3161 */
3162 if ((!cmd->abort_aen) && (instance->unload == 0)) {
3163 spin_lock_irqsave(&poll_aen_lock, flags);
3164 megasas_poll_wait_aen = 1;
3165 spin_unlock_irqrestore(&poll_aen_lock, flags);
3166 wake_up(&megasas_poll_wait);
3167 kill_fasync(&megasas_async_queue, SIGIO, POLL_IN);
3168 }
3169 else
3170 cmd->abort_aen = 0;
3171
3172 instance->aen_cmd = NULL;
3173
3174 megasas_return_cmd(instance, cmd);
3175
3176 if ((instance->unload == 0) &&
3177 ((instance->issuepend_done == 1))) {
3178 struct megasas_aen_event *ev;
3179
3180 ev = kzalloc(sizeof(*ev), GFP_ATOMIC);
3181 if (!ev) {
3182 dev_err(&instance->pdev->dev, "megasas_service_aen: out of memory\n");
3183 } else {
3184 ev->instance = instance;
3185 instance->ev = ev;
3186 INIT_DELAYED_WORK(&ev->hotplug_work,
3187 megasas_aen_polling);
3188 schedule_delayed_work(&ev->hotplug_work, 0);
3189 }
3190 }
3191 }
3192
3193 static ssize_t
3194 fw_crash_buffer_store(struct device *cdev,
3195 struct device_attribute *attr, const char *buf, size_t count)
3196 {
3197 struct Scsi_Host *shost = class_to_shost(cdev);
3198 struct megasas_instance *instance =
3199 (struct megasas_instance *) shost->hostdata;
3200 int val = 0;
3201 unsigned long flags;
3202
3203 if (kstrtoint(buf, 0, &val) != 0)
3204 return -EINVAL;
3205
3206 spin_lock_irqsave(&instance->crashdump_lock, flags);
3207 instance->fw_crash_buffer_offset = val;
3208 spin_unlock_irqrestore(&instance->crashdump_lock, flags);
3209 return strlen(buf);
3210 }
3211
3212 static ssize_t
3213 fw_crash_buffer_show(struct device *cdev,
3214 struct device_attribute *attr, char *buf)
3215 {
3216 struct Scsi_Host *shost = class_to_shost(cdev);
3217 struct megasas_instance *instance =
3218 (struct megasas_instance *) shost->hostdata;
3219 u32 size;
3220 unsigned long dmachunk = CRASH_DMA_BUF_SIZE;
3221 unsigned long chunk_left_bytes;
3222 unsigned long src_addr;
3223 unsigned long flags;
3224 u32 buff_offset;
3225
3226 spin_lock_irqsave(&instance->crashdump_lock, flags);
3227 buff_offset = instance->fw_crash_buffer_offset;
3228 if (!instance->crash_dump_buf &&
3229 !((instance->fw_crash_state == AVAILABLE) ||
3230 (instance->fw_crash_state == COPYING))) {
3231 dev_err(&instance->pdev->dev,
3232 "Firmware crash dump is not available\n");
3233 spin_unlock_irqrestore(&instance->crashdump_lock, flags);
3234 return -EINVAL;
3235 }
3236
3237 if (buff_offset > (instance->fw_crash_buffer_size * dmachunk)) {
3238 dev_err(&instance->pdev->dev,
3239 "Firmware crash dump offset is out of range\n");
3240 spin_unlock_irqrestore(&instance->crashdump_lock, flags);
3241 return 0;
3242 }
3243
3244 size = (instance->fw_crash_buffer_size * dmachunk) - buff_offset;
3245 chunk_left_bytes = dmachunk - (buff_offset % dmachunk);
3246 size = (size > chunk_left_bytes) ? chunk_left_bytes : size;
3247 size = (size >= PAGE_SIZE) ? (PAGE_SIZE - 1) : size;
3248
3249 src_addr = (unsigned long)instance->crash_buf[buff_offset / dmachunk] +
3250 (buff_offset % dmachunk);
3251 memcpy(buf, (void *)src_addr, size);
3252 spin_unlock_irqrestore(&instance->crashdump_lock, flags);
3253
3254 return size;
3255 }
3256
3257 static ssize_t
3258 fw_crash_buffer_size_show(struct device *cdev,
3259 struct device_attribute *attr, char *buf)
3260 {
3261 struct Scsi_Host *shost = class_to_shost(cdev);
3262 struct megasas_instance *instance =
3263 (struct megasas_instance *) shost->hostdata;
3264
3265 return snprintf(buf, PAGE_SIZE, "%ld\n", (unsigned long)
3266 ((instance->fw_crash_buffer_size) * 1024 * 1024)/PAGE_SIZE);
3267 }
3268
3269 static ssize_t
3270 fw_crash_state_store(struct device *cdev,
3271 struct device_attribute *attr, const char *buf, size_t count)
3272 {
3273 struct Scsi_Host *shost = class_to_shost(cdev);
3274 struct megasas_instance *instance =
3275 (struct megasas_instance *) shost->hostdata;
3276 int val = 0;
3277 unsigned long flags;
3278
3279 if (kstrtoint(buf, 0, &val) != 0)
3280 return -EINVAL;
3281
3282 if ((val <= AVAILABLE || val > COPY_ERROR)) {
3283 dev_err(&instance->pdev->dev, "application updates invalid "
3284 "firmware crash state\n");
3285 return -EINVAL;
3286 }
3287
3288 instance->fw_crash_state = val;
3289
3290 if ((val == COPIED) || (val == COPY_ERROR)) {
3291 spin_lock_irqsave(&instance->crashdump_lock, flags);
3292 megasas_free_host_crash_buffer(instance);
3293 spin_unlock_irqrestore(&instance->crashdump_lock, flags);
3294 if (val == COPY_ERROR)
3295 dev_info(&instance->pdev->dev, "application failed to "
3296 "copy Firmware crash dump\n");
3297 else
3298 dev_info(&instance->pdev->dev, "Firmware crash dump "
3299 "copied successfully\n");
3300 }
3301 return strlen(buf);
3302 }
3303
3304 static ssize_t
3305 fw_crash_state_show(struct device *cdev,
3306 struct device_attribute *attr, char *buf)
3307 {
3308 struct Scsi_Host *shost = class_to_shost(cdev);
3309 struct megasas_instance *instance =
3310 (struct megasas_instance *) shost->hostdata;
3311
3312 return snprintf(buf, PAGE_SIZE, "%d\n", instance->fw_crash_state);
3313 }
3314
3315 static ssize_t
3316 page_size_show(struct device *cdev,
3317 struct device_attribute *attr, char *buf)
3318 {
3319 return snprintf(buf, PAGE_SIZE, "%ld\n", (unsigned long)PAGE_SIZE - 1);
3320 }
3321
3322 static ssize_t
3323 ldio_outstanding_show(struct device *cdev, struct device_attribute *attr,
3324 char *buf)
3325 {
3326 struct Scsi_Host *shost = class_to_shost(cdev);
3327 struct megasas_instance *instance = (struct megasas_instance *)shost->hostdata;
3328
3329 return snprintf(buf, PAGE_SIZE, "%d\n", atomic_read(&instance->ldio_outstanding));
3330 }
3331
3332 static ssize_t
3333 fw_cmds_outstanding_show(struct device *cdev,
3334 struct device_attribute *attr, char *buf)
3335 {
3336 struct Scsi_Host *shost = class_to_shost(cdev);
3337 struct megasas_instance *instance = (struct megasas_instance *)shost->hostdata;
3338
3339 return snprintf(buf, PAGE_SIZE, "%d\n", atomic_read(&instance->fw_outstanding));
3340 }
3341
3342 static ssize_t
3343 enable_sdev_max_qd_show(struct device *cdev,
3344 struct device_attribute *attr, char *buf)
3345 {
3346 struct Scsi_Host *shost = class_to_shost(cdev);
3347 struct megasas_instance *instance = (struct megasas_instance *)shost->hostdata;
3348
3349 return snprintf(buf, PAGE_SIZE, "%d\n", instance->enable_sdev_max_qd);
3350 }
3351
3352 static ssize_t
3353 enable_sdev_max_qd_store(struct device *cdev,
3354 struct device_attribute *attr, const char *buf, size_t count)
3355 {
3356 struct Scsi_Host *shost = class_to_shost(cdev);
3357 struct megasas_instance *instance = (struct megasas_instance *)shost->hostdata;
3358 u32 val = 0;
3359 bool is_target_prop;
3360 int ret_target_prop = DCMD_FAILED;
3361 struct scsi_device *sdev;
3362
3363 if (kstrtou32(buf, 0, &val) != 0) {
3364 pr_err("megasas: could not set enable_sdev_max_qd\n");
3365 return -EINVAL;
3366 }
3367
3368 mutex_lock(&instance->reset_mutex);
3369 if (val)
3370 instance->enable_sdev_max_qd = true;
3371 else
3372 instance->enable_sdev_max_qd = false;
3373
3374 shost_for_each_device(sdev, shost) {
3375 ret_target_prop = megasas_get_target_prop(instance, sdev);
3376 is_target_prop = (ret_target_prop == DCMD_SUCCESS) ? true : false;
3377 megasas_set_fw_assisted_qd(sdev, is_target_prop);
3378 }
3379 mutex_unlock(&instance->reset_mutex);
3380
3381 return strlen(buf);
3382 }
3383
3384 static ssize_t
3385 dump_system_regs_show(struct device *cdev,
3386 struct device_attribute *attr, char *buf)
3387 {
3388 struct Scsi_Host *shost = class_to_shost(cdev);
3389 struct megasas_instance *instance =
3390 (struct megasas_instance *)shost->hostdata;
3391
3392 return megasas_dump_sys_regs(instance->reg_set, buf);
3393 }
3394
3395 static ssize_t
3396 raid_map_id_show(struct device *cdev, struct device_attribute *attr,
3397 char *buf)
3398 {
3399 struct Scsi_Host *shost = class_to_shost(cdev);
3400 struct megasas_instance *instance =
3401 (struct megasas_instance *)shost->hostdata;
3402
3403 return snprintf(buf, PAGE_SIZE, "%ld\n",
3404 (unsigned long)instance->map_id);
3405 }
3406
3407 static DEVICE_ATTR_RW(fw_crash_buffer);
3408 static DEVICE_ATTR_RO(fw_crash_buffer_size);
3409 static DEVICE_ATTR_RW(fw_crash_state);
3410 static DEVICE_ATTR_RO(page_size);
3411 static DEVICE_ATTR_RO(ldio_outstanding);
3412 static DEVICE_ATTR_RO(fw_cmds_outstanding);
3413 static DEVICE_ATTR_RW(enable_sdev_max_qd);
3414 static DEVICE_ATTR_RO(dump_system_regs);
3415 static DEVICE_ATTR_RO(raid_map_id);
3416
3417 static struct device_attribute *megaraid_host_attrs[] = {
3418 &dev_attr_fw_crash_buffer_size,
3419 &dev_attr_fw_crash_buffer,
3420 &dev_attr_fw_crash_state,
3421 &dev_attr_page_size,
3422 &dev_attr_ldio_outstanding,
3423 &dev_attr_fw_cmds_outstanding,
3424 &dev_attr_enable_sdev_max_qd,
3425 &dev_attr_dump_system_regs,
3426 &dev_attr_raid_map_id,
3427 NULL,
3428 };
3429
3430 /*
3431 * Scsi host template for megaraid_sas driver
3432 */
3433 static struct scsi_host_template megasas_template = {
3434
3435 .module = THIS_MODULE,
3436 .name = "Avago SAS based MegaRAID driver",
3437 .proc_name = "megaraid_sas",
3438 .slave_configure = megasas_slave_configure,
3439 .slave_alloc = megasas_slave_alloc,
3440 .slave_destroy = megasas_slave_destroy,
3441 .queuecommand = megasas_queue_command,
3442 .eh_target_reset_handler = megasas_reset_target,
3443 .eh_abort_handler = megasas_task_abort,
3444 .eh_host_reset_handler = megasas_reset_bus_host,
3445 .eh_timed_out = megasas_reset_timer,
3446 .shost_attrs = megaraid_host_attrs,
3447 .bios_param = megasas_bios_param,
3448 .map_queues = megasas_map_queues,
3449 .change_queue_depth = scsi_change_queue_depth,
3450 .max_segment_size = 0xffffffff,
3451 };
3452
3453 /**
3454 * megasas_complete_int_cmd - Completes an internal command
3455 * @instance: Adapter soft state
3456 * @cmd: Command to be completed
3457 *
3458 * The megasas_issue_blocked_cmd() function waits for a command to complete
3459 * after it issues a command. This function wakes up that waiting routine by
3460 * calling wake_up() on the wait queue.
3461 */
3462 static void
3463 megasas_complete_int_cmd(struct megasas_instance *instance,
3464 struct megasas_cmd *cmd)
3465 {
3466 if (cmd->cmd_status_drv == DCMD_INIT)
3467 cmd->cmd_status_drv =
3468 (cmd->frame->io.cmd_status == MFI_STAT_OK) ?
3469 DCMD_SUCCESS : DCMD_FAILED;
3470
3471 wake_up(&instance->int_cmd_wait_q);
3472 }
3473
3474 /**
3475 * megasas_complete_abort - Completes aborting a command
3476 * @instance: Adapter soft state
3477 * @cmd: Cmd that was issued to abort another cmd
3478 *
3479 * The megasas_issue_blocked_abort_cmd() function waits on abort_cmd_wait_q
3480 * after it issues an abort on a previously issued command. This function
3481 * wakes up all functions waiting on the same wait queue.
3482 */
3483 static void
3484 megasas_complete_abort(struct megasas_instance *instance,
3485 struct megasas_cmd *cmd)
3486 {
3487 if (cmd->sync_cmd) {
3488 cmd->sync_cmd = 0;
3489 cmd->cmd_status_drv = DCMD_SUCCESS;
3490 wake_up(&instance->abort_cmd_wait_q);
3491 }
3492 }
3493
3494 /**
3495 * megasas_complete_cmd - Completes a command
3496 * @instance: Adapter soft state
3497 * @cmd: Command to be completed
3498 * @alt_status: If non-zero, use this value as status to
3499 * SCSI mid-layer instead of the value returned
3500 * by the FW. This should be used if caller wants
3501 * an alternate status (as in the case of aborted
3502 * commands)
3503 */
3504 void
3505 megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd,
3506 u8 alt_status)
3507 {
3508 int exception = 0;
3509 struct megasas_header *hdr = &cmd->frame->hdr;
3510 unsigned long flags;
3511 struct fusion_context *fusion = instance->ctrl_context;
3512 u32 opcode, status;
3513
3514 /* flag for the retry reset */
3515 cmd->retry_for_fw_reset = 0;
3516
3517 if (cmd->scmd)
3518 cmd->scmd->SCp.ptr = NULL;
3519
3520 switch (hdr->cmd) {
3521 case MFI_CMD_INVALID:
3522 /* Some older 1068 controller FW may keep a pended
3523 MR_DCMD_CTRL_EVENT_GET_INFO left over from the main kernel
3524 when booting the kdump kernel. Ignore this command to
3525 prevent a kernel panic on shutdown of the kdump kernel. */
3526 dev_warn(&instance->pdev->dev, "MFI_CMD_INVALID command "
3527 "completed\n");
3528 dev_warn(&instance->pdev->dev, "If you have a controller "
3529 "other than PERC5, please upgrade your firmware\n");
3530 break;
3531 case MFI_CMD_PD_SCSI_IO:
3532 case MFI_CMD_LD_SCSI_IO:
3533
3534 /*
3535 * MFI_CMD_PD_SCSI_IO and MFI_CMD_LD_SCSI_IO could have been
3536 * issued either through an IO path or an IOCTL path. If it
3537 * was via IOCTL, we will send it to internal completion.
3538 */
3539 if (cmd->sync_cmd) {
3540 cmd->sync_cmd = 0;
3541 megasas_complete_int_cmd(instance, cmd);
3542 break;
3543 }
3544 fallthrough;
3545
3546 case MFI_CMD_LD_READ:
3547 case MFI_CMD_LD_WRITE:
3548
3549 if (alt_status) {
3550 cmd->scmd->result = alt_status << 16;
3551 exception = 1;
3552 }
3553
3554 if (exception) {
3555
3556 atomic_dec(&instance->fw_outstanding);
3557
3558 scsi_dma_unmap(cmd->scmd);
3559 cmd->scmd->scsi_done(cmd->scmd);
3560 megasas_return_cmd(instance, cmd);
3561
3562 break;
3563 }
3564
3565 switch (hdr->cmd_status) {
3566
3567 case MFI_STAT_OK:
3568 cmd->scmd->result = DID_OK << 16;
3569 break;
3570
3571 case MFI_STAT_SCSI_IO_FAILED:
3572 case MFI_STAT_LD_INIT_IN_PROGRESS:
3573 cmd->scmd->result =
3574 (DID_ERROR << 16) | hdr->scsi_status;
3575 break;
3576
3577 case MFI_STAT_SCSI_DONE_WITH_ERROR:
3578
3579 cmd->scmd->result = (DID_OK << 16) | hdr->scsi_status;
3580
3581 if (hdr->scsi_status == SAM_STAT_CHECK_CONDITION) {
3582 memset(cmd->scmd->sense_buffer, 0,
3583 SCSI_SENSE_BUFFERSIZE);
3584 memcpy(cmd->scmd->sense_buffer, cmd->sense,
3585 hdr->sense_len);
3586
3587 cmd->scmd->result |= DRIVER_SENSE << 24;
3588 }
3589
3590 break;
3591
3592 case MFI_STAT_LD_OFFLINE:
3593 case MFI_STAT_DEVICE_NOT_FOUND:
3594 cmd->scmd->result = DID_BAD_TARGET << 16;
3595 break;
3596
3597 default:
3598 dev_printk(KERN_DEBUG, &instance->pdev->dev, "MFI FW status %#x\n",
3599 hdr->cmd_status);
3600 cmd->scmd->result = DID_ERROR << 16;
3601 break;
3602 }
3603
3604 atomic_dec(&instance->fw_outstanding);
3605
3606 scsi_dma_unmap(cmd->scmd);
3607 cmd->scmd->scsi_done(cmd->scmd);
3608 megasas_return_cmd(instance, cmd);
3609
3610 break;
3611
3612 case MFI_CMD_SMP:
3613 case MFI_CMD_STP:
3614 case MFI_CMD_NVME:
3615 case MFI_CMD_TOOLBOX:
3616 megasas_complete_int_cmd(instance, cmd);
3617 break;
3618
3619 case MFI_CMD_DCMD:
3620 opcode = le32_to_cpu(cmd->frame->dcmd.opcode);
3621 /* Check for LD map update */
3622 if ((opcode == MR_DCMD_LD_MAP_GET_INFO)
3623 && (cmd->frame->dcmd.mbox.b[1] == 1)) {
3624 fusion->fast_path_io = 0;
3625 spin_lock_irqsave(instance->host->host_lock, flags);
3626 status = cmd->frame->hdr.cmd_status;
3627 instance->map_update_cmd = NULL;
3628 if (status != MFI_STAT_OK) {
3629 if (status != MFI_STAT_NOT_FOUND)
3630 dev_warn(&instance->pdev->dev, "map syncfailed, status = 0x%x\n",
3631 cmd->frame->hdr.cmd_status);
3632 else {
3633 megasas_return_cmd(instance, cmd);
3634 spin_unlock_irqrestore(
3635 instance->host->host_lock,
3636 flags);
3637 break;
3638 }
3639 }
3640
3641 megasas_return_cmd(instance, cmd);
3642
3643 /*
3644 * Set fast path IO to ZERO.
3645 * Validate Map will set proper value.
3646 * Meanwhile all IOs will go as LD IO.
3647 */
3648 if (status == MFI_STAT_OK &&
3649 (MR_ValidateMapInfo(instance, (instance->map_id + 1)))) {
3650 instance->map_id++;
3651 fusion->fast_path_io = 1;
3652 } else {
3653 fusion->fast_path_io = 0;
3654 }
3655
3656 megasas_sync_map_info(instance);
3657 spin_unlock_irqrestore(instance->host->host_lock,
3658 flags);
3659 break;
3660 }
3661 if (opcode == MR_DCMD_CTRL_EVENT_GET_INFO ||
3662 opcode == MR_DCMD_CTRL_EVENT_GET) {
3663 spin_lock_irqsave(&poll_aen_lock, flags);
3664 megasas_poll_wait_aen = 0;
3665 spin_unlock_irqrestore(&poll_aen_lock, flags);
3666 }
3667
3668 /* FW has an updated PD sequence */
3669 if ((opcode == MR_DCMD_SYSTEM_PD_MAP_GET_INFO) &&
3670 (cmd->frame->dcmd.mbox.b[0] == 1)) {
3671
3672 spin_lock_irqsave(instance->host->host_lock, flags);
3673 status = cmd->frame->hdr.cmd_status;
3674 instance->jbod_seq_cmd = NULL;
3675 megasas_return_cmd(instance, cmd);
3676
3677 if (status == MFI_STAT_OK) {
3678 instance->pd_seq_map_id++;
3679 /* Re-register a pd sync seq num cmd */
3680 if (megasas_sync_pd_seq_num(instance, true))
3681 instance->use_seqnum_jbod_fp = false;
3682 } else
3683 instance->use_seqnum_jbod_fp = false;
3684
3685 spin_unlock_irqrestore(instance->host->host_lock, flags);
3686 break;
3687 }
3688
3689 /*
3690 * See if got an event notification
3691 */
3692 if (opcode == MR_DCMD_CTRL_EVENT_WAIT)
3693 megasas_service_aen(instance, cmd);
3694 else
3695 megasas_complete_int_cmd(instance, cmd);
3696
3697 break;
3698
3699 case MFI_CMD_ABORT:
3700 /*
3701 * Cmd issued to abort another cmd returned
3702 */
3703 megasas_complete_abort(instance, cmd);
3704 break;
3705
3706 default:
3707 dev_info(&instance->pdev->dev, "Unknown command completed! [0x%X]\n",
3708 hdr->cmd);
3709 megasas_complete_int_cmd(instance, cmd);
3710 break;
3711 }
3712 }
3713
3714 /**
3715 * megasas_issue_pending_cmds_again - issue all pending cmds
3716 * in FW again because of the fw reset
3717 * @instance: Adapter soft state
3718 */
3719 static inline void
3720 megasas_issue_pending_cmds_again(struct megasas_instance *instance)
3721 {
3722 struct megasas_cmd *cmd;
3723 struct list_head clist_local;
3724 union megasas_evt_class_locale class_locale;
3725 unsigned long flags;
3726 u32 seq_num;
3727
3728 INIT_LIST_HEAD(&clist_local);
3729 spin_lock_irqsave(&instance->hba_lock, flags);
3730 list_splice_init(&instance->internal_reset_pending_q, &clist_local);
3731 spin_unlock_irqrestore(&instance->hba_lock, flags);
3732
3733 while (!list_empty(&clist_local)) {
3734 cmd = list_entry((&clist_local)->next,
3735 struct megasas_cmd, list);
3736 list_del_init(&cmd->list);
3737
3738 if (cmd->sync_cmd || cmd->scmd) {
3739 dev_notice(&instance->pdev->dev, "command %p, %p:%d"
3740 "detected to be pending while HBA reset\n",
3741 cmd, cmd->scmd, cmd->sync_cmd);
3742
3743 cmd->retry_for_fw_reset++;
3744
3745 if (cmd->retry_for_fw_reset == 3) {
3746 dev_notice(&instance->pdev->dev, "cmd %p, %p:%d"
3747 "was tried multiple times during reset."
3748 "Shutting down the HBA\n",
3749 cmd, cmd->scmd, cmd->sync_cmd);
3750 instance->instancet->disable_intr(instance);
3751 atomic_set(&instance->fw_reset_no_pci_access, 1);
3752 megaraid_sas_kill_hba(instance);
3753 return;
3754 }
3755 }
3756
3757 if (cmd->sync_cmd == 1) {
3758 if (cmd->scmd) {
3759 dev_notice(&instance->pdev->dev, "unexpected"
3760 "cmd attached to internal command!\n");
3761 }
3762 dev_notice(&instance->pdev->dev, "%p synchronous cmd"
3763 "on the internal reset queue,"
3764 "issue it again.\n", cmd);
3765 cmd->cmd_status_drv = DCMD_INIT;
3766 instance->instancet->fire_cmd(instance,
3767 cmd->frame_phys_addr,
3768 0, instance->reg_set);
3769 } else if (cmd->scmd) {
3770 dev_notice(&instance->pdev->dev, "%p scsi cmd [%02x]"
3771 "detected on the internal queue, issue again.\n",
3772 cmd, cmd->scmd->cmnd[0]);
3773
3774 atomic_inc(&instance->fw_outstanding);
3775 instance->instancet->fire_cmd(instance,
3776 cmd->frame_phys_addr,
3777 cmd->frame_count-1, instance->reg_set);
3778 } else {
3779 dev_notice(&instance->pdev->dev, "%p unexpected cmd on the"
3780 "internal reset defer list while re-issue!!\n",
3781 cmd);
3782 }
3783 }
3784
3785 if (instance->aen_cmd) {
3786 dev_notice(&instance->pdev->dev, "aen_cmd in def process\n");
3787 megasas_return_cmd(instance, instance->aen_cmd);
3788
3789 instance->aen_cmd = NULL;
3790 }
3791
3792 /*
3793 * Initiate AEN (Asynchronous Event Notification)
3794 */
3795 seq_num = instance->last_seq_num;
3796 class_locale.members.reserved = 0;
3797 class_locale.members.locale = MR_EVT_LOCALE_ALL;
3798 class_locale.members.class = MR_EVT_CLASS_DEBUG;
3799
3800 megasas_register_aen(instance, seq_num, class_locale.word);
3801 }
3802
3803 /*
3804 * Move the internal reset pending commands to a deferred queue.
3805 *
3806 * We move the commands pending at internal reset time to a
3807 * pending queue. This queue would be flushed after successful
3808 * completion of the internal reset sequence. if the internal reset
3809 * did not complete in time, the kernel reset handler would flush
3810 * these commands.
3811 */
3812 static void
3813 megasas_internal_reset_defer_cmds(struct megasas_instance *instance)
3814 {
3815 struct megasas_cmd *cmd;
3816 int i;
3817 u16 max_cmd = instance->max_fw_cmds;
3818 u32 defer_index;
3819 unsigned long flags;
3820
3821 defer_index = 0;
3822 spin_lock_irqsave(&instance->mfi_pool_lock, flags);
3823 for (i = 0; i < max_cmd; i++) {
3824 cmd = instance->cmd_list[i];
3825 if (cmd->sync_cmd == 1 || cmd->scmd) {
3826 dev_notice(&instance->pdev->dev, "moving cmd[%d]:%p:%d:%p"
3827 "on the defer queue as internal\n",
3828 defer_index, cmd, cmd->sync_cmd, cmd->scmd);
3829
3830 if (!list_empty(&cmd->list)) {
3831 dev_notice(&instance->pdev->dev, "ERROR while"
3832 " moving this cmd:%p, %d %p, it was"
3833 "discovered on some list?\n",
3834 cmd, cmd->sync_cmd, cmd->scmd);
3835
3836 list_del_init(&cmd->list);
3837 }
3838 defer_index++;
3839 list_add_tail(&cmd->list,
3840 &instance->internal_reset_pending_q);
3841 }
3842 }
3843 spin_unlock_irqrestore(&instance->mfi_pool_lock, flags);
3844 }
3845
3846
3847 static void
3848 process_fw_state_change_wq(struct work_struct *work)
3849 {
3850 struct megasas_instance *instance =
3851 container_of(work, struct megasas_instance, work_init);
3852 u32 wait;
3853 unsigned long flags;
3854
3855 if (atomic_read(&instance->adprecovery) != MEGASAS_ADPRESET_SM_INFAULT) {
3856 dev_notice(&instance->pdev->dev, "error, recovery st %x\n",
3857 atomic_read(&instance->adprecovery));
3858 return ;
3859 }
3860
3861 if (atomic_read(&instance->adprecovery) == MEGASAS_ADPRESET_SM_INFAULT) {
3862 dev_notice(&instance->pdev->dev, "FW detected to be in fault"
3863 "state, restarting it...\n");
3864
3865 instance->instancet->disable_intr(instance);
3866 atomic_set(&instance->fw_outstanding, 0);
3867
3868 atomic_set(&instance->fw_reset_no_pci_access, 1);
3869 instance->instancet->adp_reset(instance, instance->reg_set);
3870 atomic_set(&instance->fw_reset_no_pci_access, 0);
3871
3872 dev_notice(&instance->pdev->dev, "FW restarted successfully,"
3873 "initiating next stage...\n");
3874
3875 dev_notice(&instance->pdev->dev, "HBA recovery state machine,"
3876 "state 2 starting...\n");
3877
3878 /* waiting for about 20 second before start the second init */
3879 for (wait = 0; wait < 30; wait++) {
3880 msleep(1000);
3881 }
3882
3883 if (megasas_transition_to_ready(instance, 1)) {
3884 dev_notice(&instance->pdev->dev, "adapter not ready\n");
3885
3886 atomic_set(&instance->fw_reset_no_pci_access, 1);
3887 megaraid_sas_kill_hba(instance);
3888 return ;
3889 }
3890
3891 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS1064R) ||
3892 (instance->pdev->device == PCI_DEVICE_ID_DELL_PERC5) ||
3893 (instance->pdev->device == PCI_DEVICE_ID_LSI_VERDE_ZCR)
3894 ) {
3895 *instance->consumer = *instance->producer;
3896 } else {
3897 *instance->consumer = 0;
3898 *instance->producer = 0;
3899 }
3900
3901 megasas_issue_init_mfi(instance);
3902
3903 spin_lock_irqsave(&instance->hba_lock, flags);
3904 atomic_set(&instance->adprecovery, MEGASAS_HBA_OPERATIONAL);
3905 spin_unlock_irqrestore(&instance->hba_lock, flags);
3906 instance->instancet->enable_intr(instance);
3907
3908 megasas_issue_pending_cmds_again(instance);
3909 instance->issuepend_done = 1;
3910 }
3911 }
3912
3913 /**
3914 * megasas_deplete_reply_queue - Processes all completed commands
3915 * @instance: Adapter soft state
3916 * @alt_status: Alternate status to be returned to
3917 * SCSI mid-layer instead of the status
3918 * returned by the FW
3919 * Note: this must be called with hba lock held
3920 */
3921 static int
3922 megasas_deplete_reply_queue(struct megasas_instance *instance,
3923 u8 alt_status)
3924 {
3925 u32 mfiStatus;
3926 u32 fw_state;
3927
3928 if ((mfiStatus = instance->instancet->check_reset(instance,
3929 instance->reg_set)) == 1) {
3930 return IRQ_HANDLED;
3931 }
3932
3933 mfiStatus = instance->instancet->clear_intr(instance);
3934 if (mfiStatus == 0) {
3935 /* Hardware may not set outbound_intr_status in MSI-X mode */
3936 if (!instance->msix_vectors)
3937 return IRQ_NONE;
3938 }
3939
3940 instance->mfiStatus = mfiStatus;
3941
3942 if ((mfiStatus & MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE)) {
3943 fw_state = instance->instancet->read_fw_status_reg(
3944 instance) & MFI_STATE_MASK;
3945
3946 if (fw_state != MFI_STATE_FAULT) {
3947 dev_notice(&instance->pdev->dev, "fw state:%x\n",
3948 fw_state);
3949 }
3950
3951 if ((fw_state == MFI_STATE_FAULT) &&
3952 (instance->disableOnlineCtrlReset == 0)) {
3953 dev_notice(&instance->pdev->dev, "wait adp restart\n");
3954
3955 if ((instance->pdev->device ==
3956 PCI_DEVICE_ID_LSI_SAS1064R) ||
3957 (instance->pdev->device ==
3958 PCI_DEVICE_ID_DELL_PERC5) ||
3959 (instance->pdev->device ==
3960 PCI_DEVICE_ID_LSI_VERDE_ZCR)) {
3961
3962 *instance->consumer =
3963 cpu_to_le32(MEGASAS_ADPRESET_INPROG_SIGN);
3964 }
3965
3966
3967 instance->instancet->disable_intr(instance);
3968 atomic_set(&instance->adprecovery, MEGASAS_ADPRESET_SM_INFAULT);
3969 instance->issuepend_done = 0;
3970
3971 atomic_set(&instance->fw_outstanding, 0);
3972 megasas_internal_reset_defer_cmds(instance);
3973
3974 dev_notice(&instance->pdev->dev, "fwState=%x, stage:%d\n",
3975 fw_state, atomic_read(&instance->adprecovery));
3976
3977 schedule_work(&instance->work_init);
3978 return IRQ_HANDLED;
3979
3980 } else {
3981 dev_notice(&instance->pdev->dev, "fwstate:%x, dis_OCR=%x\n",
3982 fw_state, instance->disableOnlineCtrlReset);
3983 }
3984 }
3985
3986 tasklet_schedule(&instance->isr_tasklet);
3987 return IRQ_HANDLED;
3988 }
3989
3990 /**
3991 * megasas_isr - isr entry point
3992 * @irq: IRQ number
3993 * @devp: IRQ context address
3994 */
3995 static irqreturn_t megasas_isr(int irq, void *devp)
3996 {
3997 struct megasas_irq_context *irq_context = devp;
3998 struct megasas_instance *instance = irq_context->instance;
3999 unsigned long flags;
4000 irqreturn_t rc;
4001
4002 if (atomic_read(&instance->fw_reset_no_pci_access))
4003 return IRQ_HANDLED;
4004
4005 spin_lock_irqsave(&instance->hba_lock, flags);
4006 rc = megasas_deplete_reply_queue(instance, DID_OK);
4007 spin_unlock_irqrestore(&instance->hba_lock, flags);
4008
4009 return rc;
4010 }
4011
4012 /**
4013 * megasas_transition_to_ready - Move the FW to READY state
4014 * @instance: Adapter soft state
4015 * @ocr: Adapter reset state
4016 *
4017 * During the initialization, FW passes can potentially be in any one of
4018 * several possible states. If the FW in operational, waiting-for-handshake
4019 * states, driver must take steps to bring it to ready state. Otherwise, it
4020 * has to wait for the ready state.
4021 */
4022 int
4023 megasas_transition_to_ready(struct megasas_instance *instance, int ocr)
4024 {
4025 int i;
4026 u8 max_wait;
4027 u32 fw_state;
4028 u32 abs_state, curr_abs_state;
4029
4030 abs_state = instance->instancet->read_fw_status_reg(instance);
4031 fw_state = abs_state & MFI_STATE_MASK;
4032
4033 if (fw_state != MFI_STATE_READY)
4034 dev_info(&instance->pdev->dev, "Waiting for FW to come to ready"
4035 " state\n");
4036
4037 while (fw_state != MFI_STATE_READY) {
4038
4039 switch (fw_state) {
4040
4041 case MFI_STATE_FAULT:
4042 dev_printk(KERN_ERR, &instance->pdev->dev,
4043 "FW in FAULT state, Fault code:0x%x subcode:0x%x func:%s\n",
4044 abs_state & MFI_STATE_FAULT_CODE,
4045 abs_state & MFI_STATE_FAULT_SUBCODE, __func__);
4046 if (ocr) {
4047 max_wait = MEGASAS_RESET_WAIT_TIME;
4048 break;
4049 } else {
4050 dev_printk(KERN_DEBUG, &instance->pdev->dev, "System Register set:\n");
4051 megasas_dump_reg_set(instance->reg_set);
4052 return -ENODEV;
4053 }
4054
4055 case MFI_STATE_WAIT_HANDSHAKE:
4056 /*
4057 * Set the CLR bit in inbound doorbell
4058 */
4059 if ((instance->pdev->device ==
4060 PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
4061 (instance->pdev->device ==
4062 PCI_DEVICE_ID_LSI_SAS0071SKINNY) ||
4063 (instance->adapter_type != MFI_SERIES))
4064 writel(
4065 MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG,
4066 &instance->reg_set->doorbell);
4067 else
4068 writel(
4069 MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG,
4070 &instance->reg_set->inbound_doorbell);
4071
4072 max_wait = MEGASAS_RESET_WAIT_TIME;
4073 break;
4074
4075 case MFI_STATE_BOOT_MESSAGE_PENDING:
4076 if ((instance->pdev->device ==
4077 PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
4078 (instance->pdev->device ==
4079 PCI_DEVICE_ID_LSI_SAS0071SKINNY) ||
4080 (instance->adapter_type != MFI_SERIES))
4081 writel(MFI_INIT_HOTPLUG,
4082 &instance->reg_set->doorbell);
4083 else
4084 writel(MFI_INIT_HOTPLUG,
4085 &instance->reg_set->inbound_doorbell);
4086
4087 max_wait = MEGASAS_RESET_WAIT_TIME;
4088 break;
4089
4090 case MFI_STATE_OPERATIONAL:
4091 /*
4092 * Bring it to READY state; assuming max wait 10 secs
4093 */
4094 instance->instancet->disable_intr(instance);
4095 if ((instance->pdev->device ==
4096 PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
4097 (instance->pdev->device ==
4098 PCI_DEVICE_ID_LSI_SAS0071SKINNY) ||
4099 (instance->adapter_type != MFI_SERIES)) {
4100 writel(MFI_RESET_FLAGS,
4101 &instance->reg_set->doorbell);
4102
4103 if (instance->adapter_type != MFI_SERIES) {
4104 for (i = 0; i < (10 * 1000); i += 20) {
4105 if (megasas_readl(
4106 instance,
4107 &instance->
4108 reg_set->
4109 doorbell) & 1)
4110 msleep(20);
4111 else
4112 break;
4113 }
4114 }
4115 } else
4116 writel(MFI_RESET_FLAGS,
4117 &instance->reg_set->inbound_doorbell);
4118
4119 max_wait = MEGASAS_RESET_WAIT_TIME;
4120 break;
4121
4122 case MFI_STATE_UNDEFINED:
4123 /*
4124 * This state should not last for more than 2 seconds
4125 */
4126 max_wait = MEGASAS_RESET_WAIT_TIME;
4127 break;
4128
4129 case MFI_STATE_BB_INIT:
4130 max_wait = MEGASAS_RESET_WAIT_TIME;
4131 break;
4132
4133 case MFI_STATE_FW_INIT:
4134 max_wait = MEGASAS_RESET_WAIT_TIME;
4135 break;
4136
4137 case MFI_STATE_FW_INIT_2:
4138 max_wait = MEGASAS_RESET_WAIT_TIME;
4139 break;
4140
4141 case MFI_STATE_DEVICE_SCAN:
4142 max_wait = MEGASAS_RESET_WAIT_TIME;
4143 break;
4144
4145 case MFI_STATE_FLUSH_CACHE:
4146 max_wait = MEGASAS_RESET_WAIT_TIME;
4147 break;
4148
4149 default:
4150 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Unknown state 0x%x\n",
4151 fw_state);
4152 dev_printk(KERN_DEBUG, &instance->pdev->dev, "System Register set:\n");
4153 megasas_dump_reg_set(instance->reg_set);
4154 return -ENODEV;
4155 }
4156
4157 /*
4158 * The cur_state should not last for more than max_wait secs
4159 */
4160 for (i = 0; i < max_wait * 50; i++) {
4161 curr_abs_state = instance->instancet->
4162 read_fw_status_reg(instance);
4163
4164 if (abs_state == curr_abs_state) {
4165 msleep(20);
4166 } else
4167 break;
4168 }
4169
4170 /*
4171 * Return error if fw_state hasn't changed after max_wait
4172 */
4173 if (curr_abs_state == abs_state) {
4174 dev_printk(KERN_DEBUG, &instance->pdev->dev, "FW state [%d] hasn't changed "
4175 "in %d secs\n", fw_state, max_wait);
4176 dev_printk(KERN_DEBUG, &instance->pdev->dev, "System Register set:\n");
4177 megasas_dump_reg_set(instance->reg_set);
4178 return -ENODEV;
4179 }
4180
4181 abs_state = curr_abs_state;
4182 fw_state = curr_abs_state & MFI_STATE_MASK;
4183 }
4184 dev_info(&instance->pdev->dev, "FW now in Ready state\n");
4185
4186 return 0;
4187 }
4188
4189 /**
4190 * megasas_teardown_frame_pool - Destroy the cmd frame DMA pool
4191 * @instance: Adapter soft state
4192 */
4193 static void megasas_teardown_frame_pool(struct megasas_instance *instance)
4194 {
4195 int i;
4196 u16 max_cmd = instance->max_mfi_cmds;
4197 struct megasas_cmd *cmd;
4198
4199 if (!instance->frame_dma_pool)
4200 return;
4201
4202 /*
4203 * Return all frames to pool
4204 */
4205 for (i = 0; i < max_cmd; i++) {
4206
4207 cmd = instance->cmd_list[i];
4208
4209 if (cmd->frame)
4210 dma_pool_free(instance->frame_dma_pool, cmd->frame,
4211 cmd->frame_phys_addr);
4212
4213 if (cmd->sense)
4214 dma_pool_free(instance->sense_dma_pool, cmd->sense,
4215 cmd->sense_phys_addr);
4216 }
4217
4218 /*
4219 * Now destroy the pool itself
4220 */
4221 dma_pool_destroy(instance->frame_dma_pool);
4222 dma_pool_destroy(instance->sense_dma_pool);
4223
4224 instance->frame_dma_pool = NULL;
4225 instance->sense_dma_pool = NULL;
4226 }
4227
4228 /**
4229 * megasas_create_frame_pool - Creates DMA pool for cmd frames
4230 * @instance: Adapter soft state
4231 *
4232 * Each command packet has an embedded DMA memory buffer that is used for
4233 * filling MFI frame and the SG list that immediately follows the frame. This
4234 * function creates those DMA memory buffers for each command packet by using
4235 * PCI pool facility.
4236 */
4237 static int megasas_create_frame_pool(struct megasas_instance *instance)
4238 {
4239 int i;
4240 u16 max_cmd;
4241 u32 frame_count;
4242 struct megasas_cmd *cmd;
4243
4244 max_cmd = instance->max_mfi_cmds;
4245
4246 /*
4247 * For MFI controllers.
4248 * max_num_sge = 60
4249 * max_sge_sz = 16 byte (sizeof megasas_sge_skinny)
4250 * Total 960 byte (15 MFI frame of 64 byte)
4251 *
4252 * Fusion adapter require only 3 extra frame.
4253 * max_num_sge = 16 (defined as MAX_IOCTL_SGE)
4254 * max_sge_sz = 12 byte (sizeof megasas_sge64)
4255 * Total 192 byte (3 MFI frame of 64 byte)
4256 */
4257 frame_count = (instance->adapter_type == MFI_SERIES) ?
4258 (15 + 1) : (3 + 1);
4259 instance->mfi_frame_size = MEGAMFI_FRAME_SIZE * frame_count;
4260 /*
4261 * Use DMA pool facility provided by PCI layer
4262 */
4263 instance->frame_dma_pool = dma_pool_create("megasas frame pool",
4264 &instance->pdev->dev,
4265 instance->mfi_frame_size, 256, 0);
4266
4267 if (!instance->frame_dma_pool) {
4268 dev_printk(KERN_DEBUG, &instance->pdev->dev, "failed to setup frame pool\n");
4269 return -ENOMEM;
4270 }
4271
4272 instance->sense_dma_pool = dma_pool_create("megasas sense pool",
4273 &instance->pdev->dev, 128,
4274 4, 0);
4275
4276 if (!instance->sense_dma_pool) {
4277 dev_printk(KERN_DEBUG, &instance->pdev->dev, "failed to setup sense pool\n");
4278
4279 dma_pool_destroy(instance->frame_dma_pool);
4280 instance->frame_dma_pool = NULL;
4281
4282 return -ENOMEM;
4283 }
4284
4285 /*
4286 * Allocate and attach a frame to each of the commands in cmd_list.
4287 * By making cmd->index as the context instead of the &cmd, we can
4288 * always use 32bit context regardless of the architecture
4289 */
4290 for (i = 0; i < max_cmd; i++) {
4291
4292 cmd = instance->cmd_list[i];
4293
4294 cmd->frame = dma_pool_zalloc(instance->frame_dma_pool,
4295 GFP_KERNEL, &cmd->frame_phys_addr);
4296
4297 cmd->sense = dma_pool_alloc(instance->sense_dma_pool,
4298 GFP_KERNEL, &cmd->sense_phys_addr);
4299
4300 /*
4301 * megasas_teardown_frame_pool() takes care of freeing
4302 * whatever has been allocated
4303 */
4304 if (!cmd->frame || !cmd->sense) {
4305 dev_printk(KERN_DEBUG, &instance->pdev->dev, "dma_pool_alloc failed\n");
4306 megasas_teardown_frame_pool(instance);
4307 return -ENOMEM;
4308 }
4309
4310 cmd->frame->io.context = cpu_to_le32(cmd->index);
4311 cmd->frame->io.pad_0 = 0;
4312 if ((instance->adapter_type == MFI_SERIES) && reset_devices)
4313 cmd->frame->hdr.cmd = MFI_CMD_INVALID;
4314 }
4315
4316 return 0;
4317 }
4318
4319 /**
4320 * megasas_free_cmds - Free all the cmds in the free cmd pool
4321 * @instance: Adapter soft state
4322 */
4323 void megasas_free_cmds(struct megasas_instance *instance)
4324 {
4325 int i;
4326
4327 /* First free the MFI frame pool */
4328 megasas_teardown_frame_pool(instance);
4329
4330 /* Free all the commands in the cmd_list */
4331 for (i = 0; i < instance->max_mfi_cmds; i++)
4332
4333 kfree(instance->cmd_list[i]);
4334
4335 /* Free the cmd_list buffer itself */
4336 kfree(instance->cmd_list);
4337 instance->cmd_list = NULL;
4338
4339 INIT_LIST_HEAD(&instance->cmd_pool);
4340 }
4341
4342 /**
4343 * megasas_alloc_cmds - Allocates the command packets
4344 * @instance: Adapter soft state
4345 *
4346 * Each command that is issued to the FW, whether IO commands from the OS or
4347 * internal commands like IOCTLs, are wrapped in local data structure called
4348 * megasas_cmd. The frame embedded in this megasas_cmd is actually issued to
4349 * the FW.
4350 *
4351 * Each frame has a 32-bit field called context (tag). This context is used
4352 * to get back the megasas_cmd from the frame when a frame gets completed in
4353 * the ISR. Typically the address of the megasas_cmd itself would be used as
4354 * the context. But we wanted to keep the differences between 32 and 64 bit
4355 * systems to the mininum. We always use 32 bit integers for the context. In
4356 * this driver, the 32 bit values are the indices into an array cmd_list.
4357 * This array is used only to look up the megasas_cmd given the context. The
4358 * free commands themselves are maintained in a linked list called cmd_pool.
4359 */
4360 int megasas_alloc_cmds(struct megasas_instance *instance)
4361 {
4362 int i;
4363 int j;
4364 u16 max_cmd;
4365 struct megasas_cmd *cmd;
4366
4367 max_cmd = instance->max_mfi_cmds;
4368
4369 /*
4370 * instance->cmd_list is an array of struct megasas_cmd pointers.
4371 * Allocate the dynamic array first and then allocate individual
4372 * commands.
4373 */
4374 instance->cmd_list = kcalloc(max_cmd, sizeof(struct megasas_cmd*), GFP_KERNEL);
4375
4376 if (!instance->cmd_list) {
4377 dev_printk(KERN_DEBUG, &instance->pdev->dev, "out of memory\n");
4378 return -ENOMEM;
4379 }
4380
4381 memset(instance->cmd_list, 0, sizeof(struct megasas_cmd *) *max_cmd);
4382
4383 for (i = 0; i < max_cmd; i++) {
4384 instance->cmd_list[i] = kmalloc(sizeof(struct megasas_cmd),
4385 GFP_KERNEL);
4386
4387 if (!instance->cmd_list[i]) {
4388
4389 for (j = 0; j < i; j++)
4390 kfree(instance->cmd_list[j]);
4391
4392 kfree(instance->cmd_list);
4393 instance->cmd_list = NULL;
4394
4395 return -ENOMEM;
4396 }
4397 }
4398
4399 for (i = 0; i < max_cmd; i++) {
4400 cmd = instance->cmd_list[i];
4401 memset(cmd, 0, sizeof(struct megasas_cmd));
4402 cmd->index = i;
4403 cmd->scmd = NULL;
4404 cmd->instance = instance;
4405
4406 list_add_tail(&cmd->list, &instance->cmd_pool);
4407 }
4408
4409 /*
4410 * Create a frame pool and assign one frame to each cmd
4411 */
4412 if (megasas_create_frame_pool(instance)) {
4413 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Error creating frame DMA pool\n");
4414 megasas_free_cmds(instance);
4415 return -ENOMEM;
4416 }
4417
4418 return 0;
4419 }
4420
4421 /*
4422 * dcmd_timeout_ocr_possible - Check if OCR is possible based on Driver/FW state.
4423 * @instance: Adapter soft state
4424 *
4425 * Return 0 for only Fusion adapter, if driver load/unload is not in progress
4426 * or FW is not under OCR.
4427 */
4428 inline int
4429 dcmd_timeout_ocr_possible(struct megasas_instance *instance) {
4430
4431 if (instance->adapter_type == MFI_SERIES)
4432 return KILL_ADAPTER;
4433 else if (instance->unload ||
4434 test_bit(MEGASAS_FUSION_OCR_NOT_POSSIBLE,
4435 &instance->reset_flags))
4436 return IGNORE_TIMEOUT;
4437 else
4438 return INITIATE_OCR;
4439 }
4440
4441 static void
4442 megasas_get_pd_info(struct megasas_instance *instance, struct scsi_device *sdev)
4443 {
4444 int ret;
4445 struct megasas_cmd *cmd;
4446 struct megasas_dcmd_frame *dcmd;
4447
4448 struct MR_PRIV_DEVICE *mr_device_priv_data;
4449 u16 device_id = 0;
4450
4451 device_id = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + sdev->id;
4452 cmd = megasas_get_cmd(instance);
4453
4454 if (!cmd) {
4455 dev_err(&instance->pdev->dev, "Failed to get cmd %s\n", __func__);
4456 return;
4457 }
4458
4459 dcmd = &cmd->frame->dcmd;
4460
4461 memset(instance->pd_info, 0, sizeof(*instance->pd_info));
4462 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
4463
4464 dcmd->mbox.s[0] = cpu_to_le16(device_id);
4465 dcmd->cmd = MFI_CMD_DCMD;
4466 dcmd->cmd_status = 0xFF;
4467 dcmd->sge_count = 1;
4468 dcmd->flags = MFI_FRAME_DIR_READ;
4469 dcmd->timeout = 0;
4470 dcmd->pad_0 = 0;
4471 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_PD_INFO));
4472 dcmd->opcode = cpu_to_le32(MR_DCMD_PD_GET_INFO);
4473
4474 megasas_set_dma_settings(instance, dcmd, instance->pd_info_h,
4475 sizeof(struct MR_PD_INFO));
4476
4477 if ((instance->adapter_type != MFI_SERIES) &&
4478 !instance->mask_interrupts)
4479 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS);
4480 else
4481 ret = megasas_issue_polled(instance, cmd);
4482
4483 switch (ret) {
4484 case DCMD_SUCCESS:
4485 mr_device_priv_data = sdev->hostdata;
4486 le16_to_cpus((u16 *)&instance->pd_info->state.ddf.pdType);
4487 mr_device_priv_data->interface_type =
4488 instance->pd_info->state.ddf.pdType.intf;
4489 break;
4490
4491 case DCMD_TIMEOUT:
4492
4493 switch (dcmd_timeout_ocr_possible(instance)) {
4494 case INITIATE_OCR:
4495 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
4496 mutex_unlock(&instance->reset_mutex);
4497 megasas_reset_fusion(instance->host,
4498 MFI_IO_TIMEOUT_OCR);
4499 mutex_lock(&instance->reset_mutex);
4500 break;
4501 case KILL_ADAPTER:
4502 megaraid_sas_kill_hba(instance);
4503 break;
4504 case IGNORE_TIMEOUT:
4505 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n",
4506 __func__, __LINE__);
4507 break;
4508 }
4509
4510 break;
4511 }
4512
4513 if (ret != DCMD_TIMEOUT)
4514 megasas_return_cmd(instance, cmd);
4515
4516 return;
4517 }
4518 /*
4519 * megasas_get_pd_list_info - Returns FW's pd_list structure
4520 * @instance: Adapter soft state
4521 * @pd_list: pd_list structure
4522 *
4523 * Issues an internal command (DCMD) to get the FW's controller PD
4524 * list structure. This information is mainly used to find out SYSTEM
4525 * supported by the FW.
4526 */
4527 static int
4528 megasas_get_pd_list(struct megasas_instance *instance)
4529 {
4530 int ret = 0, pd_index = 0;
4531 struct megasas_cmd *cmd;
4532 struct megasas_dcmd_frame *dcmd;
4533 struct MR_PD_LIST *ci;
4534 struct MR_PD_ADDRESS *pd_addr;
4535
4536 if (instance->pd_list_not_supported) {
4537 dev_info(&instance->pdev->dev, "MR_DCMD_PD_LIST_QUERY "
4538 "not supported by firmware\n");
4539 return ret;
4540 }
4541
4542 ci = instance->pd_list_buf;
4543
4544 cmd = megasas_get_cmd(instance);
4545
4546 if (!cmd) {
4547 dev_printk(KERN_DEBUG, &instance->pdev->dev, "(get_pd_list): Failed to get cmd\n");
4548 return -ENOMEM;
4549 }
4550
4551 dcmd = &cmd->frame->dcmd;
4552
4553 memset(ci, 0, sizeof(*ci));
4554 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
4555
4556 dcmd->mbox.b[0] = MR_PD_QUERY_TYPE_EXPOSED_TO_HOST;
4557 dcmd->mbox.b[1] = 0;
4558 dcmd->cmd = MFI_CMD_DCMD;
4559 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
4560 dcmd->sge_count = 1;
4561 dcmd->flags = MFI_FRAME_DIR_READ;
4562 dcmd->timeout = 0;
4563 dcmd->pad_0 = 0;
4564 dcmd->data_xfer_len = cpu_to_le32(MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST));
4565 dcmd->opcode = cpu_to_le32(MR_DCMD_PD_LIST_QUERY);
4566
4567 megasas_set_dma_settings(instance, dcmd, instance->pd_list_buf_h,
4568 (MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST)));
4569
4570 if ((instance->adapter_type != MFI_SERIES) &&
4571 !instance->mask_interrupts)
4572 ret = megasas_issue_blocked_cmd(instance, cmd,
4573 MFI_IO_TIMEOUT_SECS);
4574 else
4575 ret = megasas_issue_polled(instance, cmd);
4576
4577 switch (ret) {
4578 case DCMD_FAILED:
4579 dev_info(&instance->pdev->dev, "MR_DCMD_PD_LIST_QUERY "
4580 "failed/not supported by firmware\n");
4581
4582 if (instance->adapter_type != MFI_SERIES)
4583 megaraid_sas_kill_hba(instance);
4584 else
4585 instance->pd_list_not_supported = 1;
4586 break;
4587 case DCMD_TIMEOUT:
4588
4589 switch (dcmd_timeout_ocr_possible(instance)) {
4590 case INITIATE_OCR:
4591 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
4592 /*
4593 * DCMD failed from AEN path.
4594 * AEN path already hold reset_mutex to avoid PCI access
4595 * while OCR is in progress.
4596 */
4597 mutex_unlock(&instance->reset_mutex);
4598 megasas_reset_fusion(instance->host,
4599 MFI_IO_TIMEOUT_OCR);
4600 mutex_lock(&instance->reset_mutex);
4601 break;
4602 case KILL_ADAPTER:
4603 megaraid_sas_kill_hba(instance);
4604 break;
4605 case IGNORE_TIMEOUT:
4606 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d \n",
4607 __func__, __LINE__);
4608 break;
4609 }
4610
4611 break;
4612
4613 case DCMD_SUCCESS:
4614 pd_addr = ci->addr;
4615 if (megasas_dbg_lvl & LD_PD_DEBUG)
4616 dev_info(&instance->pdev->dev, "%s, sysPD count: 0x%x\n",
4617 __func__, le32_to_cpu(ci->count));
4618
4619 if ((le32_to_cpu(ci->count) >
4620 (MEGASAS_MAX_PD_CHANNELS * MEGASAS_MAX_DEV_PER_CHANNEL)))
4621 break;
4622
4623 memset(instance->local_pd_list, 0,
4624 MEGASAS_MAX_PD * sizeof(struct megasas_pd_list));
4625
4626 for (pd_index = 0; pd_index < le32_to_cpu(ci->count); pd_index++) {
4627 instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].tid =
4628 le16_to_cpu(pd_addr->deviceId);
4629 instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].driveType =
4630 pd_addr->scsiDevType;
4631 instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].driveState =
4632 MR_PD_STATE_SYSTEM;
4633 if (megasas_dbg_lvl & LD_PD_DEBUG)
4634 dev_info(&instance->pdev->dev,
4635 "PD%d: targetID: 0x%03x deviceType:0x%x\n",
4636 pd_index, le16_to_cpu(pd_addr->deviceId),
4637 pd_addr->scsiDevType);
4638 pd_addr++;
4639 }
4640
4641 memcpy(instance->pd_list, instance->local_pd_list,
4642 sizeof(instance->pd_list));
4643 break;
4644
4645 }
4646
4647 if (ret != DCMD_TIMEOUT)
4648 megasas_return_cmd(instance, cmd);
4649
4650 return ret;
4651 }
4652
4653 /*
4654 * megasas_get_ld_list_info - Returns FW's ld_list structure
4655 * @instance: Adapter soft state
4656 * @ld_list: ld_list structure
4657 *
4658 * Issues an internal command (DCMD) to get the FW's controller PD
4659 * list structure. This information is mainly used to find out SYSTEM
4660 * supported by the FW.
4661 */
4662 static int
4663 megasas_get_ld_list(struct megasas_instance *instance)
4664 {
4665 int ret = 0, ld_index = 0, ids = 0;
4666 struct megasas_cmd *cmd;
4667 struct megasas_dcmd_frame *dcmd;
4668 struct MR_LD_LIST *ci;
4669 dma_addr_t ci_h = 0;
4670 u32 ld_count;
4671
4672 ci = instance->ld_list_buf;
4673 ci_h = instance->ld_list_buf_h;
4674
4675 cmd = megasas_get_cmd(instance);
4676
4677 if (!cmd) {
4678 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_list: Failed to get cmd\n");
4679 return -ENOMEM;
4680 }
4681
4682 dcmd = &cmd->frame->dcmd;
4683
4684 memset(ci, 0, sizeof(*ci));
4685 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
4686
4687 if (instance->supportmax256vd)
4688 dcmd->mbox.b[0] = 1;
4689 dcmd->cmd = MFI_CMD_DCMD;
4690 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
4691 dcmd->sge_count = 1;
4692 dcmd->flags = MFI_FRAME_DIR_READ;
4693 dcmd->timeout = 0;
4694 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_LD_LIST));
4695 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_GET_LIST);
4696 dcmd->pad_0 = 0;
4697
4698 megasas_set_dma_settings(instance, dcmd, ci_h,
4699 sizeof(struct MR_LD_LIST));
4700
4701 if ((instance->adapter_type != MFI_SERIES) &&
4702 !instance->mask_interrupts)
4703 ret = megasas_issue_blocked_cmd(instance, cmd,
4704 MFI_IO_TIMEOUT_SECS);
4705 else
4706 ret = megasas_issue_polled(instance, cmd);
4707
4708 ld_count = le32_to_cpu(ci->ldCount);
4709
4710 switch (ret) {
4711 case DCMD_FAILED:
4712 megaraid_sas_kill_hba(instance);
4713 break;
4714 case DCMD_TIMEOUT:
4715
4716 switch (dcmd_timeout_ocr_possible(instance)) {
4717 case INITIATE_OCR:
4718 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
4719 /*
4720 * DCMD failed from AEN path.
4721 * AEN path already hold reset_mutex to avoid PCI access
4722 * while OCR is in progress.
4723 */
4724 mutex_unlock(&instance->reset_mutex);
4725 megasas_reset_fusion(instance->host,
4726 MFI_IO_TIMEOUT_OCR);
4727 mutex_lock(&instance->reset_mutex);
4728 break;
4729 case KILL_ADAPTER:
4730 megaraid_sas_kill_hba(instance);
4731 break;
4732 case IGNORE_TIMEOUT:
4733 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n",
4734 __func__, __LINE__);
4735 break;
4736 }
4737
4738 break;
4739
4740 case DCMD_SUCCESS:
4741 if (megasas_dbg_lvl & LD_PD_DEBUG)
4742 dev_info(&instance->pdev->dev, "%s, LD count: 0x%x\n",
4743 __func__, ld_count);
4744
4745 if (ld_count > instance->fw_supported_vd_count)
4746 break;
4747
4748 memset(instance->ld_ids, 0xff, MAX_LOGICAL_DRIVES_EXT);
4749
4750 for (ld_index = 0; ld_index < ld_count; ld_index++) {
4751 if (ci->ldList[ld_index].state != 0) {
4752 ids = ci->ldList[ld_index].ref.targetId;
4753 instance->ld_ids[ids] = ci->ldList[ld_index].ref.targetId;
4754 if (megasas_dbg_lvl & LD_PD_DEBUG)
4755 dev_info(&instance->pdev->dev,
4756 "LD%d: targetID: 0x%03x\n",
4757 ld_index, ids);
4758 }
4759 }
4760
4761 break;
4762 }
4763
4764 if (ret != DCMD_TIMEOUT)
4765 megasas_return_cmd(instance, cmd);
4766
4767 return ret;
4768 }
4769
4770 /**
4771 * megasas_ld_list_query - Returns FW's ld_list structure
4772 * @instance: Adapter soft state
4773 * @query_type: ld_list structure type
4774 *
4775 * Issues an internal command (DCMD) to get the FW's controller PD
4776 * list structure. This information is mainly used to find out SYSTEM
4777 * supported by the FW.
4778 */
4779 static int
4780 megasas_ld_list_query(struct megasas_instance *instance, u8 query_type)
4781 {
4782 int ret = 0, ld_index = 0, ids = 0;
4783 struct megasas_cmd *cmd;
4784 struct megasas_dcmd_frame *dcmd;
4785 struct MR_LD_TARGETID_LIST *ci;
4786 dma_addr_t ci_h = 0;
4787 u32 tgtid_count;
4788
4789 ci = instance->ld_targetid_list_buf;
4790 ci_h = instance->ld_targetid_list_buf_h;
4791
4792 cmd = megasas_get_cmd(instance);
4793
4794 if (!cmd) {
4795 dev_warn(&instance->pdev->dev,
4796 "megasas_ld_list_query: Failed to get cmd\n");
4797 return -ENOMEM;
4798 }
4799
4800 dcmd = &cmd->frame->dcmd;
4801
4802 memset(ci, 0, sizeof(*ci));
4803 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
4804
4805 dcmd->mbox.b[0] = query_type;
4806 if (instance->supportmax256vd)
4807 dcmd->mbox.b[2] = 1;
4808
4809 dcmd->cmd = MFI_CMD_DCMD;
4810 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
4811 dcmd->sge_count = 1;
4812 dcmd->flags = MFI_FRAME_DIR_READ;
4813 dcmd->timeout = 0;
4814 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_LD_TARGETID_LIST));
4815 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_LIST_QUERY);
4816 dcmd->pad_0 = 0;
4817
4818 megasas_set_dma_settings(instance, dcmd, ci_h,
4819 sizeof(struct MR_LD_TARGETID_LIST));
4820
4821 if ((instance->adapter_type != MFI_SERIES) &&
4822 !instance->mask_interrupts)
4823 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS);
4824 else
4825 ret = megasas_issue_polled(instance, cmd);
4826
4827 switch (ret) {
4828 case DCMD_FAILED:
4829 dev_info(&instance->pdev->dev,
4830 "DCMD not supported by firmware - %s %d\n",
4831 __func__, __LINE__);
4832 ret = megasas_get_ld_list(instance);
4833 break;
4834 case DCMD_TIMEOUT:
4835 switch (dcmd_timeout_ocr_possible(instance)) {
4836 case INITIATE_OCR:
4837 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
4838 /*
4839 * DCMD failed from AEN path.
4840 * AEN path already hold reset_mutex to avoid PCI access
4841 * while OCR is in progress.
4842 */
4843 mutex_unlock(&instance->reset_mutex);
4844 megasas_reset_fusion(instance->host,
4845 MFI_IO_TIMEOUT_OCR);
4846 mutex_lock(&instance->reset_mutex);
4847 break;
4848 case KILL_ADAPTER:
4849 megaraid_sas_kill_hba(instance);
4850 break;
4851 case IGNORE_TIMEOUT:
4852 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n",
4853 __func__, __LINE__);
4854 break;
4855 }
4856
4857 break;
4858 case DCMD_SUCCESS:
4859 tgtid_count = le32_to_cpu(ci->count);
4860
4861 if (megasas_dbg_lvl & LD_PD_DEBUG)
4862 dev_info(&instance->pdev->dev, "%s, LD count: 0x%x\n",
4863 __func__, tgtid_count);
4864
4865 if ((tgtid_count > (instance->fw_supported_vd_count)))
4866 break;
4867
4868 memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS);
4869 for (ld_index = 0; ld_index < tgtid_count; ld_index++) {
4870 ids = ci->targetId[ld_index];
4871 instance->ld_ids[ids] = ci->targetId[ld_index];
4872 if (megasas_dbg_lvl & LD_PD_DEBUG)
4873 dev_info(&instance->pdev->dev, "LD%d: targetID: 0x%03x\n",
4874 ld_index, ci->targetId[ld_index]);
4875 }
4876
4877 break;
4878 }
4879
4880 if (ret != DCMD_TIMEOUT)
4881 megasas_return_cmd(instance, cmd);
4882
4883 return ret;
4884 }
4885
4886 /**
4887 * dcmd.opcode - MR_DCMD_CTRL_DEVICE_LIST_GET
4888 * dcmd.mbox - reserved
4889 * dcmd.sge IN - ptr to return MR_HOST_DEVICE_LIST structure
4890 * Desc: This DCMD will return the combined device list
4891 * Status: MFI_STAT_OK - List returned successfully
4892 * MFI_STAT_INVALID_CMD - Firmware support for the feature has been
4893 * disabled
4894 * @instance: Adapter soft state
4895 * @is_probe: Driver probe check
4896 * Return: 0 if DCMD succeeded
4897 * non-zero if failed
4898 */
4899 static int
4900 megasas_host_device_list_query(struct megasas_instance *instance,
4901 bool is_probe)
4902 {
4903 int ret, i, target_id;
4904 struct megasas_cmd *cmd;
4905 struct megasas_dcmd_frame *dcmd;
4906 struct MR_HOST_DEVICE_LIST *ci;
4907 u32 count;
4908 dma_addr_t ci_h;
4909
4910 ci = instance->host_device_list_buf;
4911 ci_h = instance->host_device_list_buf_h;
4912
4913 cmd = megasas_get_cmd(instance);
4914
4915 if (!cmd) {
4916 dev_warn(&instance->pdev->dev,
4917 "%s: failed to get cmd\n",
4918 __func__);
4919 return -ENOMEM;
4920 }
4921
4922 dcmd = &cmd->frame->dcmd;
4923
4924 memset(ci, 0, sizeof(*ci));
4925 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
4926
4927 dcmd->mbox.b[0] = is_probe ? 0 : 1;
4928 dcmd->cmd = MFI_CMD_DCMD;
4929 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
4930 dcmd->sge_count = 1;
4931 dcmd->flags = MFI_FRAME_DIR_READ;
4932 dcmd->timeout = 0;
4933 dcmd->pad_0 = 0;
4934 dcmd->data_xfer_len = cpu_to_le32(HOST_DEVICE_LIST_SZ);
4935 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_DEVICE_LIST_GET);
4936
4937 megasas_set_dma_settings(instance, dcmd, ci_h, HOST_DEVICE_LIST_SZ);
4938
4939 if (!instance->mask_interrupts) {
4940 ret = megasas_issue_blocked_cmd(instance, cmd,
4941 MFI_IO_TIMEOUT_SECS);
4942 } else {
4943 ret = megasas_issue_polled(instance, cmd);
4944 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
4945 }
4946
4947 switch (ret) {
4948 case DCMD_SUCCESS:
4949 /* Fill the internal pd_list and ld_ids array based on
4950 * targetIds returned by FW
4951 */
4952 count = le32_to_cpu(ci->count);
4953
4954 if (count > (MEGASAS_MAX_PD + MAX_LOGICAL_DRIVES_EXT))
4955 break;
4956
4957 if (megasas_dbg_lvl & LD_PD_DEBUG)
4958 dev_info(&instance->pdev->dev, "%s, Device count: 0x%x\n",
4959 __func__, count);
4960
4961 memset(instance->local_pd_list, 0,
4962 MEGASAS_MAX_PD * sizeof(struct megasas_pd_list));
4963 memset(instance->ld_ids, 0xff, MAX_LOGICAL_DRIVES_EXT);
4964 for (i = 0; i < count; i++) {
4965 target_id = le16_to_cpu(ci->host_device_list[i].target_id);
4966 if (ci->host_device_list[i].flags.u.bits.is_sys_pd) {
4967 instance->local_pd_list[target_id].tid = target_id;
4968 instance->local_pd_list[target_id].driveType =
4969 ci->host_device_list[i].scsi_type;
4970 instance->local_pd_list[target_id].driveState =
4971 MR_PD_STATE_SYSTEM;
4972 if (megasas_dbg_lvl & LD_PD_DEBUG)
4973 dev_info(&instance->pdev->dev,
4974 "Device %d: PD targetID: 0x%03x deviceType:0x%x\n",
4975 i, target_id, ci->host_device_list[i].scsi_type);
4976 } else {
4977 instance->ld_ids[target_id] = target_id;
4978 if (megasas_dbg_lvl & LD_PD_DEBUG)
4979 dev_info(&instance->pdev->dev,
4980 "Device %d: LD targetID: 0x%03x\n",
4981 i, target_id);
4982 }
4983 }
4984
4985 memcpy(instance->pd_list, instance->local_pd_list,
4986 sizeof(instance->pd_list));
4987 break;
4988
4989 case DCMD_TIMEOUT:
4990 switch (dcmd_timeout_ocr_possible(instance)) {
4991 case INITIATE_OCR:
4992 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
4993 mutex_unlock(&instance->reset_mutex);
4994 megasas_reset_fusion(instance->host,
4995 MFI_IO_TIMEOUT_OCR);
4996 mutex_lock(&instance->reset_mutex);
4997 break;
4998 case KILL_ADAPTER:
4999 megaraid_sas_kill_hba(instance);
5000 break;
5001 case IGNORE_TIMEOUT:
5002 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n",
5003 __func__, __LINE__);
5004 break;
5005 }
5006 break;
5007 case DCMD_FAILED:
5008 dev_err(&instance->pdev->dev,
5009 "%s: MR_DCMD_CTRL_DEVICE_LIST_GET failed\n",
5010 __func__);
5011 break;
5012 }
5013
5014 if (ret != DCMD_TIMEOUT)
5015 megasas_return_cmd(instance, cmd);
5016
5017 return ret;
5018 }
5019
5020 /*
5021 * megasas_update_ext_vd_details : Update details w.r.t Extended VD
5022 * instance : Controller's instance
5023 */
5024 static void megasas_update_ext_vd_details(struct megasas_instance *instance)
5025 {
5026 struct fusion_context *fusion;
5027 u32 ventura_map_sz = 0;
5028
5029 fusion = instance->ctrl_context;
5030 /* For MFI based controllers return dummy success */
5031 if (!fusion)
5032 return;
5033
5034 instance->supportmax256vd =
5035 instance->ctrl_info_buf->adapterOperations3.supportMaxExtLDs;
5036 /* Below is additional check to address future FW enhancement */
5037 if (instance->ctrl_info_buf->max_lds > 64)
5038 instance->supportmax256vd = 1;
5039
5040 instance->drv_supported_vd_count = MEGASAS_MAX_LD_CHANNELS
5041 * MEGASAS_MAX_DEV_PER_CHANNEL;
5042 instance->drv_supported_pd_count = MEGASAS_MAX_PD_CHANNELS
5043 * MEGASAS_MAX_DEV_PER_CHANNEL;
5044 if (instance->supportmax256vd) {
5045 instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES_EXT;
5046 instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES;
5047 } else {
5048 instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES;
5049 instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES;
5050 }
5051
5052 dev_info(&instance->pdev->dev,
5053 "FW provided supportMaxExtLDs: %d\tmax_lds: %d\n",
5054 instance->ctrl_info_buf->adapterOperations3.supportMaxExtLDs ? 1 : 0,
5055 instance->ctrl_info_buf->max_lds);
5056
5057 if (instance->max_raid_mapsize) {
5058 ventura_map_sz = instance->max_raid_mapsize *
5059 MR_MIN_MAP_SIZE; /* 64k */
5060 fusion->current_map_sz = ventura_map_sz;
5061 fusion->max_map_sz = ventura_map_sz;
5062 } else {
5063 fusion->old_map_sz = sizeof(struct MR_FW_RAID_MAP) +
5064 (sizeof(struct MR_LD_SPAN_MAP) *
5065 (instance->fw_supported_vd_count - 1));
5066 fusion->new_map_sz = sizeof(struct MR_FW_RAID_MAP_EXT);
5067
5068 fusion->max_map_sz =
5069 max(fusion->old_map_sz, fusion->new_map_sz);
5070
5071 if (instance->supportmax256vd)
5072 fusion->current_map_sz = fusion->new_map_sz;
5073 else
5074 fusion->current_map_sz = fusion->old_map_sz;
5075 }
5076 /* irrespective of FW raid maps, driver raid map is constant */
5077 fusion->drv_map_sz = sizeof(struct MR_DRV_RAID_MAP_ALL);
5078 }
5079
5080 /*
5081 * dcmd.opcode - MR_DCMD_CTRL_SNAPDUMP_GET_PROPERTIES
5082 * dcmd.hdr.length - number of bytes to read
5083 * dcmd.sge - Ptr to MR_SNAPDUMP_PROPERTIES
5084 * Desc: Fill in snapdump properties
5085 * Status: MFI_STAT_OK- Command successful
5086 */
5087 void megasas_get_snapdump_properties(struct megasas_instance *instance)
5088 {
5089 int ret = 0;
5090 struct megasas_cmd *cmd;
5091 struct megasas_dcmd_frame *dcmd;
5092 struct MR_SNAPDUMP_PROPERTIES *ci;
5093 dma_addr_t ci_h = 0;
5094
5095 ci = instance->snapdump_prop;
5096 ci_h = instance->snapdump_prop_h;
5097
5098 if (!ci)
5099 return;
5100
5101 cmd = megasas_get_cmd(instance);
5102
5103 if (!cmd) {
5104 dev_dbg(&instance->pdev->dev, "Failed to get a free cmd\n");
5105 return;
5106 }
5107
5108 dcmd = &cmd->frame->dcmd;
5109
5110 memset(ci, 0, sizeof(*ci));
5111 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
5112
5113 dcmd->cmd = MFI_CMD_DCMD;
5114 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
5115 dcmd->sge_count = 1;
5116 dcmd->flags = MFI_FRAME_DIR_READ;
5117 dcmd->timeout = 0;
5118 dcmd->pad_0 = 0;
5119 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_SNAPDUMP_PROPERTIES));
5120 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_SNAPDUMP_GET_PROPERTIES);
5121
5122 megasas_set_dma_settings(instance, dcmd, ci_h,
5123 sizeof(struct MR_SNAPDUMP_PROPERTIES));
5124
5125 if (!instance->mask_interrupts) {
5126 ret = megasas_issue_blocked_cmd(instance, cmd,
5127 MFI_IO_TIMEOUT_SECS);
5128 } else {
5129 ret = megasas_issue_polled(instance, cmd);
5130 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
5131 }
5132
5133 switch (ret) {
5134 case DCMD_SUCCESS:
5135 instance->snapdump_wait_time =
5136 min_t(u8, ci->trigger_min_num_sec_before_ocr,
5137 MEGASAS_MAX_SNAP_DUMP_WAIT_TIME);
5138 break;
5139
5140 case DCMD_TIMEOUT:
5141 switch (dcmd_timeout_ocr_possible(instance)) {
5142 case INITIATE_OCR:
5143 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
5144 mutex_unlock(&instance->reset_mutex);
5145 megasas_reset_fusion(instance->host,
5146 MFI_IO_TIMEOUT_OCR);
5147 mutex_lock(&instance->reset_mutex);
5148 break;
5149 case KILL_ADAPTER:
5150 megaraid_sas_kill_hba(instance);
5151 break;
5152 case IGNORE_TIMEOUT:
5153 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n",
5154 __func__, __LINE__);
5155 break;
5156 }
5157 }
5158
5159 if (ret != DCMD_TIMEOUT)
5160 megasas_return_cmd(instance, cmd);
5161 }
5162
5163 /**
5164 * megasas_get_controller_info - Returns FW's controller structure
5165 * @instance: Adapter soft state
5166 *
5167 * Issues an internal command (DCMD) to get the FW's controller structure.
5168 * This information is mainly used to find out the maximum IO transfer per
5169 * command supported by the FW.
5170 */
5171 int
5172 megasas_get_ctrl_info(struct megasas_instance *instance)
5173 {
5174 int ret = 0;
5175 struct megasas_cmd *cmd;
5176 struct megasas_dcmd_frame *dcmd;
5177 struct megasas_ctrl_info *ci;
5178 dma_addr_t ci_h = 0;
5179
5180 ci = instance->ctrl_info_buf;
5181 ci_h = instance->ctrl_info_buf_h;
5182
5183 cmd = megasas_get_cmd(instance);
5184
5185 if (!cmd) {
5186 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to get a free cmd\n");
5187 return -ENOMEM;
5188 }
5189
5190 dcmd = &cmd->frame->dcmd;
5191
5192 memset(ci, 0, sizeof(*ci));
5193 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
5194
5195 dcmd->cmd = MFI_CMD_DCMD;
5196 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
5197 dcmd->sge_count = 1;
5198 dcmd->flags = MFI_FRAME_DIR_READ;
5199 dcmd->timeout = 0;
5200 dcmd->pad_0 = 0;
5201 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct megasas_ctrl_info));
5202 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_GET_INFO);
5203 dcmd->mbox.b[0] = 1;
5204
5205 megasas_set_dma_settings(instance, dcmd, ci_h,
5206 sizeof(struct megasas_ctrl_info));
5207
5208 if ((instance->adapter_type != MFI_SERIES) &&
5209 !instance->mask_interrupts) {
5210 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS);
5211 } else {
5212 ret = megasas_issue_polled(instance, cmd);
5213 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
5214 }
5215
5216 switch (ret) {
5217 case DCMD_SUCCESS:
5218 /* Save required controller information in
5219 * CPU endianness format.
5220 */
5221 le32_to_cpus((u32 *)&ci->properties.OnOffProperties);
5222 le16_to_cpus((u16 *)&ci->properties.on_off_properties2);
5223 le32_to_cpus((u32 *)&ci->adapterOperations2);
5224 le32_to_cpus((u32 *)&ci->adapterOperations3);
5225 le16_to_cpus((u16 *)&ci->adapter_operations4);
5226 le32_to_cpus((u32 *)&ci->adapter_operations5);
5227
5228 /* Update the latest Ext VD info.
5229 * From Init path, store current firmware details.
5230 * From OCR path, detect any firmware properties changes.
5231 * in case of Firmware upgrade without system reboot.
5232 */
5233 megasas_update_ext_vd_details(instance);
5234 instance->support_seqnum_jbod_fp =
5235 ci->adapterOperations3.useSeqNumJbodFP;
5236 instance->support_morethan256jbod =
5237 ci->adapter_operations4.support_pd_map_target_id;
5238 instance->support_nvme_passthru =
5239 ci->adapter_operations4.support_nvme_passthru;
5240 instance->support_pci_lane_margining =
5241 ci->adapter_operations5.support_pci_lane_margining;
5242 instance->task_abort_tmo = ci->TaskAbortTO;
5243 instance->max_reset_tmo = ci->MaxResetTO;
5244
5245 /*Check whether controller is iMR or MR */
5246 instance->is_imr = (ci->memory_size ? 0 : 1);
5247
5248 instance->snapdump_wait_time =
5249 (ci->properties.on_off_properties2.enable_snap_dump ?
5250 MEGASAS_DEFAULT_SNAP_DUMP_WAIT_TIME : 0);
5251
5252 instance->enable_fw_dev_list =
5253 ci->properties.on_off_properties2.enable_fw_dev_list;
5254
5255 dev_info(&instance->pdev->dev,
5256 "controller type\t: %s(%dMB)\n",
5257 instance->is_imr ? "iMR" : "MR",
5258 le16_to_cpu(ci->memory_size));
5259
5260 instance->disableOnlineCtrlReset =
5261 ci->properties.OnOffProperties.disableOnlineCtrlReset;
5262 instance->secure_jbod_support =
5263 ci->adapterOperations3.supportSecurityonJBOD;
5264 dev_info(&instance->pdev->dev, "Online Controller Reset(OCR)\t: %s\n",
5265 instance->disableOnlineCtrlReset ? "Disabled" : "Enabled");
5266 dev_info(&instance->pdev->dev, "Secure JBOD support\t: %s\n",
5267 instance->secure_jbod_support ? "Yes" : "No");
5268 dev_info(&instance->pdev->dev, "NVMe passthru support\t: %s\n",
5269 instance->support_nvme_passthru ? "Yes" : "No");
5270 dev_info(&instance->pdev->dev,
5271 "FW provided TM TaskAbort/Reset timeout\t: %d secs/%d secs\n",
5272 instance->task_abort_tmo, instance->max_reset_tmo);
5273 dev_info(&instance->pdev->dev, "JBOD sequence map support\t: %s\n",
5274 instance->support_seqnum_jbod_fp ? "Yes" : "No");
5275 dev_info(&instance->pdev->dev, "PCI Lane Margining support\t: %s\n",
5276 instance->support_pci_lane_margining ? "Yes" : "No");
5277
5278 break;
5279
5280 case DCMD_TIMEOUT:
5281 switch (dcmd_timeout_ocr_possible(instance)) {
5282 case INITIATE_OCR:
5283 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
5284 mutex_unlock(&instance->reset_mutex);
5285 megasas_reset_fusion(instance->host,
5286 MFI_IO_TIMEOUT_OCR);
5287 mutex_lock(&instance->reset_mutex);
5288 break;
5289 case KILL_ADAPTER:
5290 megaraid_sas_kill_hba(instance);
5291 break;
5292 case IGNORE_TIMEOUT:
5293 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n",
5294 __func__, __LINE__);
5295 break;
5296 }
5297 break;
5298 case DCMD_FAILED:
5299 megaraid_sas_kill_hba(instance);
5300 break;
5301
5302 }
5303
5304 if (ret != DCMD_TIMEOUT)
5305 megasas_return_cmd(instance, cmd);
5306
5307 return ret;
5308 }
5309
5310 /*
5311 * megasas_set_crash_dump_params - Sends address of crash dump DMA buffer
5312 * to firmware
5313 *
5314 * @instance: Adapter soft state
5315 * @crash_buf_state - tell FW to turn ON/OFF crash dump feature
5316 MR_CRASH_BUF_TURN_OFF = 0
5317 MR_CRASH_BUF_TURN_ON = 1
5318 * @return 0 on success non-zero on failure.
5319 * Issues an internal command (DCMD) to set parameters for crash dump feature.
5320 * Driver will send address of crash dump DMA buffer and set mbox to tell FW
5321 * that driver supports crash dump feature. This DCMD will be sent only if
5322 * crash dump feature is supported by the FW.
5323 *
5324 */
5325 int megasas_set_crash_dump_params(struct megasas_instance *instance,
5326 u8 crash_buf_state)
5327 {
5328 int ret = 0;
5329 struct megasas_cmd *cmd;
5330 struct megasas_dcmd_frame *dcmd;
5331
5332 cmd = megasas_get_cmd(instance);
5333
5334 if (!cmd) {
5335 dev_err(&instance->pdev->dev, "Failed to get a free cmd\n");
5336 return -ENOMEM;
5337 }
5338
5339
5340 dcmd = &cmd->frame->dcmd;
5341
5342 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
5343 dcmd->mbox.b[0] = crash_buf_state;
5344 dcmd->cmd = MFI_CMD_DCMD;
5345 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
5346 dcmd->sge_count = 1;
5347 dcmd->flags = MFI_FRAME_DIR_NONE;
5348 dcmd->timeout = 0;
5349 dcmd->pad_0 = 0;
5350 dcmd->data_xfer_len = cpu_to_le32(CRASH_DMA_BUF_SIZE);
5351 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_SET_CRASH_DUMP_PARAMS);
5352
5353 megasas_set_dma_settings(instance, dcmd, instance->crash_dump_h,
5354 CRASH_DMA_BUF_SIZE);
5355
5356 if ((instance->adapter_type != MFI_SERIES) &&
5357 !instance->mask_interrupts)
5358 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS);
5359 else
5360 ret = megasas_issue_polled(instance, cmd);
5361
5362 if (ret == DCMD_TIMEOUT) {
5363 switch (dcmd_timeout_ocr_possible(instance)) {
5364 case INITIATE_OCR:
5365 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
5366 megasas_reset_fusion(instance->host,
5367 MFI_IO_TIMEOUT_OCR);
5368 break;
5369 case KILL_ADAPTER:
5370 megaraid_sas_kill_hba(instance);
5371 break;
5372 case IGNORE_TIMEOUT:
5373 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n",
5374 __func__, __LINE__);
5375 break;
5376 }
5377 } else
5378 megasas_return_cmd(instance, cmd);
5379
5380 return ret;
5381 }
5382
5383 /**
5384 * megasas_issue_init_mfi - Initializes the FW
5385 * @instance: Adapter soft state
5386 *
5387 * Issues the INIT MFI cmd
5388 */
5389 static int
5390 megasas_issue_init_mfi(struct megasas_instance *instance)
5391 {
5392 __le32 context;
5393 struct megasas_cmd *cmd;
5394 struct megasas_init_frame *init_frame;
5395 struct megasas_init_queue_info *initq_info;
5396 dma_addr_t init_frame_h;
5397 dma_addr_t initq_info_h;
5398
5399 /*
5400 * Prepare a init frame. Note the init frame points to queue info
5401 * structure. Each frame has SGL allocated after first 64 bytes. For
5402 * this frame - since we don't need any SGL - we use SGL's space as
5403 * queue info structure
5404 *
5405 * We will not get a NULL command below. We just created the pool.
5406 */
5407 cmd = megasas_get_cmd(instance);
5408
5409 init_frame = (struct megasas_init_frame *)cmd->frame;
5410 initq_info = (struct megasas_init_queue_info *)
5411 ((unsigned long)init_frame + 64);
5412
5413 init_frame_h = cmd->frame_phys_addr;
5414 initq_info_h = init_frame_h + 64;
5415
5416 context = init_frame->context;
5417 memset(init_frame, 0, MEGAMFI_FRAME_SIZE);
5418 memset(initq_info, 0, sizeof(struct megasas_init_queue_info));
5419 init_frame->context = context;
5420
5421 initq_info->reply_queue_entries = cpu_to_le32(instance->max_fw_cmds + 1);
5422 initq_info->reply_queue_start_phys_addr_lo = cpu_to_le32(instance->reply_queue_h);
5423
5424 initq_info->producer_index_phys_addr_lo = cpu_to_le32(instance->producer_h);
5425 initq_info->consumer_index_phys_addr_lo = cpu_to_le32(instance->consumer_h);
5426
5427 init_frame->cmd = MFI_CMD_INIT;
5428 init_frame->cmd_status = MFI_STAT_INVALID_STATUS;
5429 init_frame->queue_info_new_phys_addr_lo =
5430 cpu_to_le32(lower_32_bits(initq_info_h));
5431 init_frame->queue_info_new_phys_addr_hi =
5432 cpu_to_le32(upper_32_bits(initq_info_h));
5433
5434 init_frame->data_xfer_len = cpu_to_le32(sizeof(struct megasas_init_queue_info));
5435
5436 /*
5437 * disable the intr before firing the init frame to FW
5438 */
5439 instance->instancet->disable_intr(instance);
5440
5441 /*
5442 * Issue the init frame in polled mode
5443 */
5444
5445 if (megasas_issue_polled(instance, cmd)) {
5446 dev_err(&instance->pdev->dev, "Failed to init firmware\n");
5447 megasas_return_cmd(instance, cmd);
5448 goto fail_fw_init;
5449 }
5450
5451 megasas_return_cmd(instance, cmd);
5452
5453 return 0;
5454
5455 fail_fw_init:
5456 return -EINVAL;
5457 }
5458
5459 static u32
5460 megasas_init_adapter_mfi(struct megasas_instance *instance)
5461 {
5462 u32 context_sz;
5463 u32 reply_q_sz;
5464
5465 /*
5466 * Get various operational parameters from status register
5467 */
5468 instance->max_fw_cmds = instance->instancet->read_fw_status_reg(instance) & 0x00FFFF;
5469 /*
5470 * Reduce the max supported cmds by 1. This is to ensure that the
5471 * reply_q_sz (1 more than the max cmd that driver may send)
5472 * does not exceed max cmds that the FW can support
5473 */
5474 instance->max_fw_cmds = instance->max_fw_cmds-1;
5475 instance->max_mfi_cmds = instance->max_fw_cmds;
5476 instance->max_num_sge = (instance->instancet->read_fw_status_reg(instance) & 0xFF0000) >>
5477 0x10;
5478 /*
5479 * For MFI skinny adapters, MEGASAS_SKINNY_INT_CMDS commands
5480 * are reserved for IOCTL + driver's internal DCMDs.
5481 */
5482 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
5483 (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY)) {
5484 instance->max_scsi_cmds = (instance->max_fw_cmds -
5485 MEGASAS_SKINNY_INT_CMDS);
5486 sema_init(&instance->ioctl_sem, MEGASAS_SKINNY_INT_CMDS);
5487 } else {
5488 instance->max_scsi_cmds = (instance->max_fw_cmds -
5489 MEGASAS_INT_CMDS);
5490 sema_init(&instance->ioctl_sem, (MEGASAS_MFI_IOCTL_CMDS));
5491 }
5492
5493 instance->cur_can_queue = instance->max_scsi_cmds;
5494 /*
5495 * Create a pool of commands
5496 */
5497 if (megasas_alloc_cmds(instance))
5498 goto fail_alloc_cmds;
5499
5500 /*
5501 * Allocate memory for reply queue. Length of reply queue should
5502 * be _one_ more than the maximum commands handled by the firmware.
5503 *
5504 * Note: When FW completes commands, it places corresponding contex
5505 * values in this circular reply queue. This circular queue is a fairly
5506 * typical producer-consumer queue. FW is the producer (of completed
5507 * commands) and the driver is the consumer.
5508 */
5509 context_sz = sizeof(u32);
5510 reply_q_sz = context_sz * (instance->max_fw_cmds + 1);
5511
5512 instance->reply_queue = dma_alloc_coherent(&instance->pdev->dev,
5513 reply_q_sz, &instance->reply_queue_h, GFP_KERNEL);
5514
5515 if (!instance->reply_queue) {
5516 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Out of DMA mem for reply queue\n");
5517 goto fail_reply_queue;
5518 }
5519
5520 if (megasas_issue_init_mfi(instance))
5521 goto fail_fw_init;
5522
5523 if (megasas_get_ctrl_info(instance)) {
5524 dev_err(&instance->pdev->dev, "(%d): Could get controller info "
5525 "Fail from %s %d\n", instance->unique_id,
5526 __func__, __LINE__);
5527 goto fail_fw_init;
5528 }
5529
5530 instance->fw_support_ieee = 0;
5531 instance->fw_support_ieee =
5532 (instance->instancet->read_fw_status_reg(instance) &
5533 0x04000000);
5534
5535 dev_notice(&instance->pdev->dev, "megasas_init_mfi: fw_support_ieee=%d",
5536 instance->fw_support_ieee);
5537
5538 if (instance->fw_support_ieee)
5539 instance->flag_ieee = 1;
5540
5541 return 0;
5542
5543 fail_fw_init:
5544
5545 dma_free_coherent(&instance->pdev->dev, reply_q_sz,
5546 instance->reply_queue, instance->reply_queue_h);
5547 fail_reply_queue:
5548 megasas_free_cmds(instance);
5549
5550 fail_alloc_cmds:
5551 return 1;
5552 }
5553
5554 static
5555 void megasas_setup_irq_poll(struct megasas_instance *instance)
5556 {
5557 struct megasas_irq_context *irq_ctx;
5558 u32 count, i;
5559
5560 count = instance->msix_vectors > 0 ? instance->msix_vectors : 1;
5561
5562 /* Initialize IRQ poll */
5563 for (i = 0; i < count; i++) {
5564 irq_ctx = &instance->irq_context[i];
5565 irq_ctx->os_irq = pci_irq_vector(instance->pdev, i);
5566 irq_ctx->irq_poll_scheduled = false;
5567 irq_poll_init(&irq_ctx->irqpoll,
5568 instance->threshold_reply_count,
5569 megasas_irqpoll);
5570 }
5571 }
5572
5573 /*
5574 * megasas_setup_irqs_ioapic - register legacy interrupts.
5575 * @instance: Adapter soft state
5576 *
5577 * Do not enable interrupt, only setup ISRs.
5578 *
5579 * Return 0 on success.
5580 */
5581 static int
5582 megasas_setup_irqs_ioapic(struct megasas_instance *instance)
5583 {
5584 struct pci_dev *pdev;
5585
5586 pdev = instance->pdev;
5587 instance->irq_context[0].instance = instance;
5588 instance->irq_context[0].MSIxIndex = 0;
5589 snprintf(instance->irq_context->name, MEGASAS_MSIX_NAME_LEN, "%s%u",
5590 "megasas", instance->host->host_no);
5591 if (request_irq(pci_irq_vector(pdev, 0),
5592 instance->instancet->service_isr, IRQF_SHARED,
5593 instance->irq_context->name, &instance->irq_context[0])) {
5594 dev_err(&instance->pdev->dev,
5595 "Failed to register IRQ from %s %d\n",
5596 __func__, __LINE__);
5597 return -1;
5598 }
5599 instance->perf_mode = MR_LATENCY_PERF_MODE;
5600 instance->low_latency_index_start = 0;
5601 return 0;
5602 }
5603
5604 /**
5605 * megasas_setup_irqs_msix - register MSI-x interrupts.
5606 * @instance: Adapter soft state
5607 * @is_probe: Driver probe check
5608 *
5609 * Do not enable interrupt, only setup ISRs.
5610 *
5611 * Return 0 on success.
5612 */
5613 static int
5614 megasas_setup_irqs_msix(struct megasas_instance *instance, u8 is_probe)
5615 {
5616 int i, j;
5617 struct pci_dev *pdev;
5618
5619 pdev = instance->pdev;
5620
5621 /* Try MSI-x */
5622 for (i = 0; i < instance->msix_vectors; i++) {
5623 instance->irq_context[i].instance = instance;
5624 instance->irq_context[i].MSIxIndex = i;
5625 snprintf(instance->irq_context[i].name, MEGASAS_MSIX_NAME_LEN, "%s%u-msix%u",
5626 "megasas", instance->host->host_no, i);
5627 if (request_irq(pci_irq_vector(pdev, i),
5628 instance->instancet->service_isr, 0, instance->irq_context[i].name,
5629 &instance->irq_context[i])) {
5630 dev_err(&instance->pdev->dev,
5631 "Failed to register IRQ for vector %d.\n", i);
5632 for (j = 0; j < i; j++) {
5633 if (j < instance->low_latency_index_start)
5634 irq_set_affinity_hint(
5635 pci_irq_vector(pdev, j), NULL);
5636 free_irq(pci_irq_vector(pdev, j),
5637 &instance->irq_context[j]);
5638 }
5639 /* Retry irq register for IO_APIC*/
5640 instance->msix_vectors = 0;
5641 instance->msix_load_balance = false;
5642 if (is_probe) {
5643 pci_free_irq_vectors(instance->pdev);
5644 return megasas_setup_irqs_ioapic(instance);
5645 } else {
5646 return -1;
5647 }
5648 }
5649 }
5650
5651 return 0;
5652 }
5653
5654 /*
5655 * megasas_destroy_irqs- unregister interrupts.
5656 * @instance: Adapter soft state
5657 * return: void
5658 */
5659 static void
5660 megasas_destroy_irqs(struct megasas_instance *instance) {
5661
5662 int i;
5663 int count;
5664 struct megasas_irq_context *irq_ctx;
5665
5666 count = instance->msix_vectors > 0 ? instance->msix_vectors : 1;
5667 if (instance->adapter_type != MFI_SERIES) {
5668 for (i = 0; i < count; i++) {
5669 irq_ctx = &instance->irq_context[i];
5670 irq_poll_disable(&irq_ctx->irqpoll);
5671 }
5672 }
5673
5674 if (instance->msix_vectors)
5675 for (i = 0; i < instance->msix_vectors; i++) {
5676 if (i < instance->low_latency_index_start)
5677 irq_set_affinity_hint(
5678 pci_irq_vector(instance->pdev, i), NULL);
5679 free_irq(pci_irq_vector(instance->pdev, i),
5680 &instance->irq_context[i]);
5681 }
5682 else
5683 free_irq(pci_irq_vector(instance->pdev, 0),
5684 &instance->irq_context[0]);
5685 }
5686
5687 /**
5688 * megasas_setup_jbod_map - setup jbod map for FP seq_number.
5689 * @instance: Adapter soft state
5690 *
5691 * Return 0 on success.
5692 */
5693 void
5694 megasas_setup_jbod_map(struct megasas_instance *instance)
5695 {
5696 int i;
5697 struct fusion_context *fusion = instance->ctrl_context;
5698 u32 pd_seq_map_sz;
5699
5700 pd_seq_map_sz = sizeof(struct MR_PD_CFG_SEQ_NUM_SYNC) +
5701 (sizeof(struct MR_PD_CFG_SEQ) * (MAX_PHYSICAL_DEVICES - 1));
5702
5703 instance->use_seqnum_jbod_fp =
5704 instance->support_seqnum_jbod_fp;
5705 if (reset_devices || !fusion ||
5706 !instance->support_seqnum_jbod_fp) {
5707 dev_info(&instance->pdev->dev,
5708 "JBOD sequence map is disabled %s %d\n",
5709 __func__, __LINE__);
5710 instance->use_seqnum_jbod_fp = false;
5711 return;
5712 }
5713
5714 if (fusion->pd_seq_sync[0])
5715 goto skip_alloc;
5716
5717 for (i = 0; i < JBOD_MAPS_COUNT; i++) {
5718 fusion->pd_seq_sync[i] = dma_alloc_coherent
5719 (&instance->pdev->dev, pd_seq_map_sz,
5720 &fusion->pd_seq_phys[i], GFP_KERNEL);
5721 if (!fusion->pd_seq_sync[i]) {
5722 dev_err(&instance->pdev->dev,
5723 "Failed to allocate memory from %s %d\n",
5724 __func__, __LINE__);
5725 if (i == 1) {
5726 dma_free_coherent(&instance->pdev->dev,
5727 pd_seq_map_sz, fusion->pd_seq_sync[0],
5728 fusion->pd_seq_phys[0]);
5729 fusion->pd_seq_sync[0] = NULL;
5730 }
5731 instance->use_seqnum_jbod_fp = false;
5732 return;
5733 }
5734 }
5735
5736 skip_alloc:
5737 if (!megasas_sync_pd_seq_num(instance, false) &&
5738 !megasas_sync_pd_seq_num(instance, true))
5739 instance->use_seqnum_jbod_fp = true;
5740 else
5741 instance->use_seqnum_jbod_fp = false;
5742 }
5743
5744 static void megasas_setup_reply_map(struct megasas_instance *instance)
5745 {
5746 const struct cpumask *mask;
5747 unsigned int queue, cpu, low_latency_index_start;
5748
5749 low_latency_index_start = instance->low_latency_index_start;
5750
5751 for (queue = low_latency_index_start; queue < instance->msix_vectors; queue++) {
5752 mask = pci_irq_get_affinity(instance->pdev, queue);
5753 if (!mask)
5754 goto fallback;
5755
5756 for_each_cpu(cpu, mask)
5757 instance->reply_map[cpu] = queue;
5758 }
5759 return;
5760
5761 fallback:
5762 queue = low_latency_index_start;
5763 for_each_possible_cpu(cpu) {
5764 instance->reply_map[cpu] = queue;
5765 if (queue == (instance->msix_vectors - 1))
5766 queue = low_latency_index_start;
5767 else
5768 queue++;
5769 }
5770 }
5771
5772 /**
5773 * megasas_get_device_list - Get the PD and LD device list from FW.
5774 * @instance: Adapter soft state
5775 * @return: Success or failure
5776 *
5777 * Issue DCMDs to Firmware to get the PD and LD list.
5778 * Based on the FW support, driver sends the HOST_DEVICE_LIST or combination
5779 * of PD_LIST/LD_LIST_QUERY DCMDs to get the device list.
5780 */
5781 static
5782 int megasas_get_device_list(struct megasas_instance *instance)
5783 {
5784 memset(instance->pd_list, 0,
5785 (MEGASAS_MAX_PD * sizeof(struct megasas_pd_list)));
5786 memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS);
5787
5788 if (instance->enable_fw_dev_list) {
5789 if (megasas_host_device_list_query(instance, true))
5790 return FAILED;
5791 } else {
5792 if (megasas_get_pd_list(instance) < 0) {
5793 dev_err(&instance->pdev->dev, "failed to get PD list\n");
5794 return FAILED;
5795 }
5796
5797 if (megasas_ld_list_query(instance,
5798 MR_LD_QUERY_TYPE_EXPOSED_TO_HOST)) {
5799 dev_err(&instance->pdev->dev, "failed to get LD list\n");
5800 return FAILED;
5801 }
5802 }
5803
5804 return SUCCESS;
5805 }
5806
5807 /**
5808 * megasas_set_high_iops_queue_affinity_hint - Set affinity hint for high IOPS queues
5809 * @instance: Adapter soft state
5810 * return: void
5811 */
5812 static inline void
5813 megasas_set_high_iops_queue_affinity_hint(struct megasas_instance *instance)
5814 {
5815 int i;
5816 int local_numa_node;
5817
5818 if (instance->perf_mode == MR_BALANCED_PERF_MODE) {
5819 local_numa_node = dev_to_node(&instance->pdev->dev);
5820
5821 for (i = 0; i < instance->low_latency_index_start; i++)
5822 irq_set_affinity_hint(pci_irq_vector(instance->pdev, i),
5823 cpumask_of_node(local_numa_node));
5824 }
5825 }
5826
5827 static int
5828 __megasas_alloc_irq_vectors(struct megasas_instance *instance)
5829 {
5830 int i, irq_flags;
5831 struct irq_affinity desc = { .pre_vectors = instance->low_latency_index_start };
5832 struct irq_affinity *descp = &desc;
5833
5834 irq_flags = PCI_IRQ_MSIX;
5835
5836 if (instance->smp_affinity_enable)
5837 irq_flags |= PCI_IRQ_AFFINITY;
5838 else
5839 descp = NULL;
5840
5841 i = pci_alloc_irq_vectors_affinity(instance->pdev,
5842 instance->low_latency_index_start,
5843 instance->msix_vectors, irq_flags, descp);
5844
5845 return i;
5846 }
5847
5848 /**
5849 * megasas_alloc_irq_vectors - Allocate IRQ vectors/enable MSI-x vectors
5850 * @instance: Adapter soft state
5851 * return: void
5852 */
5853 static void
5854 megasas_alloc_irq_vectors(struct megasas_instance *instance)
5855 {
5856 int i;
5857 unsigned int num_msix_req;
5858
5859 i = __megasas_alloc_irq_vectors(instance);
5860
5861 if ((instance->perf_mode == MR_BALANCED_PERF_MODE) &&
5862 (i != instance->msix_vectors)) {
5863 if (instance->msix_vectors)
5864 pci_free_irq_vectors(instance->pdev);
5865 /* Disable Balanced IOPS mode and try realloc vectors */
5866 instance->perf_mode = MR_LATENCY_PERF_MODE;
5867 instance->low_latency_index_start = 1;
5868 num_msix_req = num_online_cpus() + instance->low_latency_index_start;
5869
5870 instance->msix_vectors = min(num_msix_req,
5871 instance->msix_vectors);
5872
5873 i = __megasas_alloc_irq_vectors(instance);
5874
5875 }
5876
5877 dev_info(&instance->pdev->dev,
5878 "requested/available msix %d/%d\n", instance->msix_vectors, i);
5879
5880 if (i > 0)
5881 instance->msix_vectors = i;
5882 else
5883 instance->msix_vectors = 0;
5884
5885 if (instance->smp_affinity_enable)
5886 megasas_set_high_iops_queue_affinity_hint(instance);
5887 }
5888
5889 /**
5890 * megasas_init_fw - Initializes the FW
5891 * @instance: Adapter soft state
5892 *
5893 * This is the main function for initializing firmware
5894 */
5895
5896 static int megasas_init_fw(struct megasas_instance *instance)
5897 {
5898 u32 max_sectors_1;
5899 u32 max_sectors_2, tmp_sectors, msix_enable;
5900 u32 scratch_pad_1, scratch_pad_2, scratch_pad_3, status_reg;
5901 resource_size_t base_addr;
5902 void *base_addr_phys;
5903 struct megasas_ctrl_info *ctrl_info = NULL;
5904 unsigned long bar_list;
5905 int i, j, loop;
5906 struct IOV_111 *iovPtr;
5907 struct fusion_context *fusion;
5908 bool intr_coalescing;
5909 unsigned int num_msix_req;
5910 u16 lnksta, speed;
5911
5912 fusion = instance->ctrl_context;
5913
5914 /* Find first memory bar */
5915 bar_list = pci_select_bars(instance->pdev, IORESOURCE_MEM);
5916 instance->bar = find_first_bit(&bar_list, BITS_PER_LONG);
5917 if (pci_request_selected_regions(instance->pdev, 1<<instance->bar,
5918 "megasas: LSI")) {
5919 dev_printk(KERN_DEBUG, &instance->pdev->dev, "IO memory region busy!\n");
5920 return -EBUSY;
5921 }
5922
5923 base_addr = pci_resource_start(instance->pdev, instance->bar);
5924 instance->reg_set = ioremap(base_addr, 8192);
5925
5926 if (!instance->reg_set) {
5927 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to map IO mem\n");
5928 goto fail_ioremap;
5929 }
5930
5931 base_addr_phys = &base_addr;
5932 dev_printk(KERN_DEBUG, &instance->pdev->dev,
5933 "BAR:0x%lx BAR's base_addr(phys):%pa mapped virt_addr:0x%p\n",
5934 instance->bar, base_addr_phys, instance->reg_set);
5935
5936 if (instance->adapter_type != MFI_SERIES)
5937 instance->instancet = &megasas_instance_template_fusion;
5938 else {
5939 switch (instance->pdev->device) {
5940 case PCI_DEVICE_ID_LSI_SAS1078R:
5941 case PCI_DEVICE_ID_LSI_SAS1078DE:
5942 instance->instancet = &megasas_instance_template_ppc;
5943 break;
5944 case PCI_DEVICE_ID_LSI_SAS1078GEN2:
5945 case PCI_DEVICE_ID_LSI_SAS0079GEN2:
5946 instance->instancet = &megasas_instance_template_gen2;
5947 break;
5948 case PCI_DEVICE_ID_LSI_SAS0073SKINNY:
5949 case PCI_DEVICE_ID_LSI_SAS0071SKINNY:
5950 instance->instancet = &megasas_instance_template_skinny;
5951 break;
5952 case PCI_DEVICE_ID_LSI_SAS1064R:
5953 case PCI_DEVICE_ID_DELL_PERC5:
5954 default:
5955 instance->instancet = &megasas_instance_template_xscale;
5956 instance->pd_list_not_supported = 1;
5957 break;
5958 }
5959 }
5960
5961 if (megasas_transition_to_ready(instance, 0)) {
5962 dev_info(&instance->pdev->dev,
5963 "Failed to transition controller to ready from %s!\n",
5964 __func__);
5965 if (instance->adapter_type != MFI_SERIES) {
5966 status_reg = instance->instancet->read_fw_status_reg(
5967 instance);
5968 if (status_reg & MFI_RESET_ADAPTER) {
5969 if (megasas_adp_reset_wait_for_ready
5970 (instance, true, 0) == FAILED)
5971 goto fail_ready_state;
5972 } else {
5973 goto fail_ready_state;
5974 }
5975 } else {
5976 atomic_set(&instance->fw_reset_no_pci_access, 1);
5977 instance->instancet->adp_reset
5978 (instance, instance->reg_set);
5979 atomic_set(&instance->fw_reset_no_pci_access, 0);
5980
5981 /*waiting for about 30 second before retry*/
5982 ssleep(30);
5983
5984 if (megasas_transition_to_ready(instance, 0))
5985 goto fail_ready_state;
5986 }
5987
5988 dev_info(&instance->pdev->dev,
5989 "FW restarted successfully from %s!\n",
5990 __func__);
5991 }
5992
5993 megasas_init_ctrl_params(instance);
5994
5995 if (megasas_set_dma_mask(instance))
5996 goto fail_ready_state;
5997
5998 if (megasas_alloc_ctrl_mem(instance))
5999 goto fail_alloc_dma_buf;
6000
6001 if (megasas_alloc_ctrl_dma_buffers(instance))
6002 goto fail_alloc_dma_buf;
6003
6004 fusion = instance->ctrl_context;
6005
6006 if (instance->adapter_type >= VENTURA_SERIES) {
6007 scratch_pad_2 =
6008 megasas_readl(instance,
6009 &instance->reg_set->outbound_scratch_pad_2);
6010 instance->max_raid_mapsize = ((scratch_pad_2 >>
6011 MR_MAX_RAID_MAP_SIZE_OFFSET_SHIFT) &
6012 MR_MAX_RAID_MAP_SIZE_MASK);
6013 }
6014
6015 instance->enable_sdev_max_qd = enable_sdev_max_qd;
6016
6017 switch (instance->adapter_type) {
6018 case VENTURA_SERIES:
6019 fusion->pcie_bw_limitation = true;
6020 break;
6021 case AERO_SERIES:
6022 fusion->r56_div_offload = true;
6023 break;
6024 default:
6025 break;
6026 }
6027
6028 /* Check if MSI-X is supported while in ready state */
6029 msix_enable = (instance->instancet->read_fw_status_reg(instance) &
6030 0x4000000) >> 0x1a;
6031 if (msix_enable && !msix_disable) {
6032
6033 scratch_pad_1 = megasas_readl
6034 (instance, &instance->reg_set->outbound_scratch_pad_1);
6035 /* Check max MSI-X vectors */
6036 if (fusion) {
6037 if (instance->adapter_type == THUNDERBOLT_SERIES) {
6038 /* Thunderbolt Series*/
6039 instance->msix_vectors = (scratch_pad_1
6040 & MR_MAX_REPLY_QUEUES_OFFSET) + 1;
6041 } else {
6042 instance->msix_vectors = ((scratch_pad_1
6043 & MR_MAX_REPLY_QUEUES_EXT_OFFSET)
6044 >> MR_MAX_REPLY_QUEUES_EXT_OFFSET_SHIFT) + 1;
6045
6046 /*
6047 * For Invader series, > 8 MSI-x vectors
6048 * supported by FW/HW implies combined
6049 * reply queue mode is enabled.
6050 * For Ventura series, > 16 MSI-x vectors
6051 * supported by FW/HW implies combined
6052 * reply queue mode is enabled.
6053 */
6054 switch (instance->adapter_type) {
6055 case INVADER_SERIES:
6056 if (instance->msix_vectors > 8)
6057 instance->msix_combined = true;
6058 break;
6059 case AERO_SERIES:
6060 case VENTURA_SERIES:
6061 if (instance->msix_vectors > 16)
6062 instance->msix_combined = true;
6063 break;
6064 }
6065
6066 if (rdpq_enable)
6067 instance->is_rdpq = (scratch_pad_1 & MR_RDPQ_MODE_OFFSET) ?
6068 1 : 0;
6069
6070 if (instance->adapter_type >= INVADER_SERIES &&
6071 !instance->msix_combined) {
6072 instance->msix_load_balance = true;
6073 instance->smp_affinity_enable = false;
6074 }
6075
6076 /* Save 1-15 reply post index address to local memory
6077 * Index 0 is already saved from reg offset
6078 * MPI2_REPLY_POST_HOST_INDEX_OFFSET
6079 */
6080 for (loop = 1; loop < MR_MAX_MSIX_REG_ARRAY; loop++) {
6081 instance->reply_post_host_index_addr[loop] =
6082 (u32 __iomem *)
6083 ((u8 __iomem *)instance->reg_set +
6084 MPI2_SUP_REPLY_POST_HOST_INDEX_OFFSET
6085 + (loop * 0x10));
6086 }
6087 }
6088
6089 dev_info(&instance->pdev->dev,
6090 "firmware supports msix\t: (%d)",
6091 instance->msix_vectors);
6092 if (msix_vectors)
6093 instance->msix_vectors = min(msix_vectors,
6094 instance->msix_vectors);
6095 } else /* MFI adapters */
6096 instance->msix_vectors = 1;
6097
6098
6099 /*
6100 * For Aero (if some conditions are met), driver will configure a
6101 * few additional reply queues with interrupt coalescing enabled.
6102 * These queues with interrupt coalescing enabled are called
6103 * High IOPS queues and rest of reply queues (based on number of
6104 * logical CPUs) are termed as Low latency queues.
6105 *
6106 * Total Number of reply queues = High IOPS queues + low latency queues
6107 *
6108 * For rest of fusion adapters, 1 additional reply queue will be
6109 * reserved for management commands, rest of reply queues
6110 * (based on number of logical CPUs) will be used for IOs and
6111 * referenced as IO queues.
6112 * Total Number of reply queues = 1 + IO queues
6113 *
6114 * MFI adapters supports single MSI-x so single reply queue
6115 * will be used for IO and management commands.
6116 */
6117
6118 intr_coalescing = (scratch_pad_1 & MR_INTR_COALESCING_SUPPORT_OFFSET) ?
6119 true : false;
6120 if (intr_coalescing &&
6121 (num_online_cpus() >= MR_HIGH_IOPS_QUEUE_COUNT) &&
6122 (instance->msix_vectors == MEGASAS_MAX_MSIX_QUEUES))
6123 instance->perf_mode = MR_BALANCED_PERF_MODE;
6124 else
6125 instance->perf_mode = MR_LATENCY_PERF_MODE;
6126
6127
6128 if (instance->adapter_type == AERO_SERIES) {
6129 pcie_capability_read_word(instance->pdev, PCI_EXP_LNKSTA, &lnksta);
6130 speed = lnksta & PCI_EXP_LNKSTA_CLS;
6131
6132 /*
6133 * For Aero, if PCIe link speed is <16 GT/s, then driver should operate
6134 * in latency perf mode and enable R1 PCI bandwidth algorithm
6135 */
6136 if (speed < 0x4) {
6137 instance->perf_mode = MR_LATENCY_PERF_MODE;
6138 fusion->pcie_bw_limitation = true;
6139 }
6140
6141 /*
6142 * Performance mode settings provided through module parameter-perf_mode will
6143 * take affect only for:
6144 * 1. Aero family of adapters.
6145 * 2. When user sets module parameter- perf_mode in range of 0-2.
6146 */
6147 if ((perf_mode >= MR_BALANCED_PERF_MODE) &&
6148 (perf_mode <= MR_LATENCY_PERF_MODE))
6149 instance->perf_mode = perf_mode;
6150 /*
6151 * If intr coalescing is not supported by controller FW, then IOPS
6152 * and Balanced modes are not feasible.
6153 */
6154 if (!intr_coalescing)
6155 instance->perf_mode = MR_LATENCY_PERF_MODE;
6156
6157 }
6158
6159 if (instance->perf_mode == MR_BALANCED_PERF_MODE)
6160 instance->low_latency_index_start =
6161 MR_HIGH_IOPS_QUEUE_COUNT;
6162 else
6163 instance->low_latency_index_start = 1;
6164
6165 num_msix_req = num_online_cpus() + instance->low_latency_index_start;
6166
6167 instance->msix_vectors = min(num_msix_req,
6168 instance->msix_vectors);
6169
6170 megasas_alloc_irq_vectors(instance);
6171 if (!instance->msix_vectors)
6172 instance->msix_load_balance = false;
6173 }
6174 /*
6175 * MSI-X host index 0 is common for all adapter.
6176 * It is used for all MPT based Adapters.
6177 */
6178 if (instance->msix_combined) {
6179 instance->reply_post_host_index_addr[0] =
6180 (u32 *)((u8 *)instance->reg_set +
6181 MPI2_SUP_REPLY_POST_HOST_INDEX_OFFSET);
6182 } else {
6183 instance->reply_post_host_index_addr[0] =
6184 (u32 *)((u8 *)instance->reg_set +
6185 MPI2_REPLY_POST_HOST_INDEX_OFFSET);
6186 }
6187
6188 if (!instance->msix_vectors) {
6189 i = pci_alloc_irq_vectors(instance->pdev, 1, 1, PCI_IRQ_LEGACY);
6190 if (i < 0)
6191 goto fail_init_adapter;
6192 }
6193
6194 megasas_setup_reply_map(instance);
6195
6196 dev_info(&instance->pdev->dev,
6197 "current msix/online cpus\t: (%d/%d)\n",
6198 instance->msix_vectors, (unsigned int)num_online_cpus());
6199 dev_info(&instance->pdev->dev,
6200 "RDPQ mode\t: (%s)\n", instance->is_rdpq ? "enabled" : "disabled");
6201
6202 tasklet_init(&instance->isr_tasklet, instance->instancet->tasklet,
6203 (unsigned long)instance);
6204
6205 /*
6206 * Below are default value for legacy Firmware.
6207 * non-fusion based controllers
6208 */
6209 instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES;
6210 instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES;
6211 /* Get operational params, sge flags, send init cmd to controller */
6212 if (instance->instancet->init_adapter(instance))
6213 goto fail_init_adapter;
6214
6215 if (instance->adapter_type >= VENTURA_SERIES) {
6216 scratch_pad_3 =
6217 megasas_readl(instance,
6218 &instance->reg_set->outbound_scratch_pad_3);
6219 if ((scratch_pad_3 & MR_NVME_PAGE_SIZE_MASK) >=
6220 MR_DEFAULT_NVME_PAGE_SHIFT)
6221 instance->nvme_page_size =
6222 (1 << (scratch_pad_3 & MR_NVME_PAGE_SIZE_MASK));
6223
6224 dev_info(&instance->pdev->dev,
6225 "NVME page size\t: (%d)\n", instance->nvme_page_size);
6226 }
6227
6228 if (instance->msix_vectors ?
6229 megasas_setup_irqs_msix(instance, 1) :
6230 megasas_setup_irqs_ioapic(instance))
6231 goto fail_init_adapter;
6232
6233 if (instance->adapter_type != MFI_SERIES)
6234 megasas_setup_irq_poll(instance);
6235
6236 instance->instancet->enable_intr(instance);
6237
6238 dev_info(&instance->pdev->dev, "INIT adapter done\n");
6239
6240 megasas_setup_jbod_map(instance);
6241
6242 if (megasas_get_device_list(instance) != SUCCESS) {
6243 dev_err(&instance->pdev->dev,
6244 "%s: megasas_get_device_list failed\n",
6245 __func__);
6246 goto fail_get_ld_pd_list;
6247 }
6248
6249 /* stream detection initialization */
6250 if (instance->adapter_type >= VENTURA_SERIES) {
6251 fusion->stream_detect_by_ld =
6252 kcalloc(MAX_LOGICAL_DRIVES_EXT,
6253 sizeof(struct LD_STREAM_DETECT *),
6254 GFP_KERNEL);
6255 if (!fusion->stream_detect_by_ld) {
6256 dev_err(&instance->pdev->dev,
6257 "unable to allocate stream detection for pool of LDs\n");
6258 goto fail_get_ld_pd_list;
6259 }
6260 for (i = 0; i < MAX_LOGICAL_DRIVES_EXT; ++i) {
6261 fusion->stream_detect_by_ld[i] =
6262 kzalloc(sizeof(struct LD_STREAM_DETECT),
6263 GFP_KERNEL);
6264 if (!fusion->stream_detect_by_ld[i]) {
6265 dev_err(&instance->pdev->dev,
6266 "unable to allocate stream detect by LD\n ");
6267 for (j = 0; j < i; ++j)
6268 kfree(fusion->stream_detect_by_ld[j]);
6269 kfree(fusion->stream_detect_by_ld);
6270 fusion->stream_detect_by_ld = NULL;
6271 goto fail_get_ld_pd_list;
6272 }
6273 fusion->stream_detect_by_ld[i]->mru_bit_map
6274 = MR_STREAM_BITMAP;
6275 }
6276 }
6277
6278 /*
6279 * Compute the max allowed sectors per IO: The controller info has two
6280 * limits on max sectors. Driver should use the minimum of these two.
6281 *
6282 * 1 << stripe_sz_ops.min = max sectors per strip
6283 *
6284 * Note that older firmwares ( < FW ver 30) didn't report information
6285 * to calculate max_sectors_1. So the number ended up as zero always.
6286 */
6287 tmp_sectors = 0;
6288 ctrl_info = instance->ctrl_info_buf;
6289
6290 max_sectors_1 = (1 << ctrl_info->stripe_sz_ops.min) *
6291 le16_to_cpu(ctrl_info->max_strips_per_io);
6292 max_sectors_2 = le32_to_cpu(ctrl_info->max_request_size);
6293
6294 tmp_sectors = min_t(u32, max_sectors_1, max_sectors_2);
6295
6296 instance->peerIsPresent = ctrl_info->cluster.peerIsPresent;
6297 instance->passive = ctrl_info->cluster.passive;
6298 memcpy(instance->clusterId, ctrl_info->clusterId, sizeof(instance->clusterId));
6299 instance->UnevenSpanSupport =
6300 ctrl_info->adapterOperations2.supportUnevenSpans;
6301 if (instance->UnevenSpanSupport) {
6302 struct fusion_context *fusion = instance->ctrl_context;
6303 if (MR_ValidateMapInfo(instance, instance->map_id))
6304 fusion->fast_path_io = 1;
6305 else
6306 fusion->fast_path_io = 0;
6307
6308 }
6309 if (ctrl_info->host_interface.SRIOV) {
6310 instance->requestorId = ctrl_info->iov.requestorId;
6311 if (instance->pdev->device == PCI_DEVICE_ID_LSI_PLASMA) {
6312 if (!ctrl_info->adapterOperations2.activePassive)
6313 instance->PlasmaFW111 = 1;
6314
6315 dev_info(&instance->pdev->dev, "SR-IOV: firmware type: %s\n",
6316 instance->PlasmaFW111 ? "1.11" : "new");
6317
6318 if (instance->PlasmaFW111) {
6319 iovPtr = (struct IOV_111 *)
6320 ((unsigned char *)ctrl_info + IOV_111_OFFSET);
6321 instance->requestorId = iovPtr->requestorId;
6322 }
6323 }
6324 dev_info(&instance->pdev->dev, "SRIOV: VF requestorId %d\n",
6325 instance->requestorId);
6326 }
6327
6328 instance->crash_dump_fw_support =
6329 ctrl_info->adapterOperations3.supportCrashDump;
6330 instance->crash_dump_drv_support =
6331 (instance->crash_dump_fw_support &&
6332 instance->crash_dump_buf);
6333 if (instance->crash_dump_drv_support)
6334 megasas_set_crash_dump_params(instance,
6335 MR_CRASH_BUF_TURN_OFF);
6336
6337 else {
6338 if (instance->crash_dump_buf)
6339 dma_free_coherent(&instance->pdev->dev,
6340 CRASH_DMA_BUF_SIZE,
6341 instance->crash_dump_buf,
6342 instance->crash_dump_h);
6343 instance->crash_dump_buf = NULL;
6344 }
6345
6346 if (instance->snapdump_wait_time) {
6347 megasas_get_snapdump_properties(instance);
6348 dev_info(&instance->pdev->dev, "Snap dump wait time\t: %d\n",
6349 instance->snapdump_wait_time);
6350 }
6351
6352 dev_info(&instance->pdev->dev,
6353 "pci id\t\t: (0x%04x)/(0x%04x)/(0x%04x)/(0x%04x)\n",
6354 le16_to_cpu(ctrl_info->pci.vendor_id),
6355 le16_to_cpu(ctrl_info->pci.device_id),
6356 le16_to_cpu(ctrl_info->pci.sub_vendor_id),
6357 le16_to_cpu(ctrl_info->pci.sub_device_id));
6358 dev_info(&instance->pdev->dev, "unevenspan support : %s\n",
6359 instance->UnevenSpanSupport ? "yes" : "no");
6360 dev_info(&instance->pdev->dev, "firmware crash dump : %s\n",
6361 instance->crash_dump_drv_support ? "yes" : "no");
6362 dev_info(&instance->pdev->dev, "JBOD sequence map : %s\n",
6363 instance->use_seqnum_jbod_fp ? "enabled" : "disabled");
6364
6365 instance->max_sectors_per_req = instance->max_num_sge *
6366 SGE_BUFFER_SIZE / 512;
6367 if (tmp_sectors && (instance->max_sectors_per_req > tmp_sectors))
6368 instance->max_sectors_per_req = tmp_sectors;
6369
6370 /* Check for valid throttlequeuedepth module parameter */
6371 if (throttlequeuedepth &&
6372 throttlequeuedepth <= instance->max_scsi_cmds)
6373 instance->throttlequeuedepth = throttlequeuedepth;
6374 else
6375 instance->throttlequeuedepth =
6376 MEGASAS_THROTTLE_QUEUE_DEPTH;
6377
6378 if ((resetwaittime < 1) ||
6379 (resetwaittime > MEGASAS_RESET_WAIT_TIME))
6380 resetwaittime = MEGASAS_RESET_WAIT_TIME;
6381
6382 if ((scmd_timeout < 10) || (scmd_timeout > MEGASAS_DEFAULT_CMD_TIMEOUT))
6383 scmd_timeout = MEGASAS_DEFAULT_CMD_TIMEOUT;
6384
6385 /* Launch SR-IOV heartbeat timer */
6386 if (instance->requestorId) {
6387 if (!megasas_sriov_start_heartbeat(instance, 1)) {
6388 megasas_start_timer(instance);
6389 } else {
6390 instance->skip_heartbeat_timer_del = 1;
6391 goto fail_get_ld_pd_list;
6392 }
6393 }
6394
6395 /*
6396 * Create and start watchdog thread which will monitor
6397 * controller state every 1 sec and trigger OCR when
6398 * it enters fault state
6399 */
6400 if (instance->adapter_type != MFI_SERIES)
6401 if (megasas_fusion_start_watchdog(instance) != SUCCESS)
6402 goto fail_start_watchdog;
6403
6404 return 0;
6405
6406 fail_start_watchdog:
6407 if (instance->requestorId && !instance->skip_heartbeat_timer_del)
6408 del_timer_sync(&instance->sriov_heartbeat_timer);
6409 fail_get_ld_pd_list:
6410 instance->instancet->disable_intr(instance);
6411 megasas_destroy_irqs(instance);
6412 fail_init_adapter:
6413 if (instance->msix_vectors)
6414 pci_free_irq_vectors(instance->pdev);
6415 instance->msix_vectors = 0;
6416 fail_alloc_dma_buf:
6417 megasas_free_ctrl_dma_buffers(instance);
6418 megasas_free_ctrl_mem(instance);
6419 fail_ready_state:
6420 iounmap(instance->reg_set);
6421
6422 fail_ioremap:
6423 pci_release_selected_regions(instance->pdev, 1<<instance->bar);
6424
6425 dev_err(&instance->pdev->dev, "Failed from %s %d\n",
6426 __func__, __LINE__);
6427 return -EINVAL;
6428 }
6429
6430 /**
6431 * megasas_release_mfi - Reverses the FW initialization
6432 * @instance: Adapter soft state
6433 */
6434 static void megasas_release_mfi(struct megasas_instance *instance)
6435 {
6436 u32 reply_q_sz = sizeof(u32) *(instance->max_mfi_cmds + 1);
6437
6438 if (instance->reply_queue)
6439 dma_free_coherent(&instance->pdev->dev, reply_q_sz,
6440 instance->reply_queue, instance->reply_queue_h);
6441
6442 megasas_free_cmds(instance);
6443
6444 iounmap(instance->reg_set);
6445
6446 pci_release_selected_regions(instance->pdev, 1<<instance->bar);
6447 }
6448
6449 /**
6450 * megasas_get_seq_num - Gets latest event sequence numbers
6451 * @instance: Adapter soft state
6452 * @eli: FW event log sequence numbers information
6453 *
6454 * FW maintains a log of all events in a non-volatile area. Upper layers would
6455 * usually find out the latest sequence number of the events, the seq number at
6456 * the boot etc. They would "read" all the events below the latest seq number
6457 * by issuing a direct fw cmd (DCMD). For the future events (beyond latest seq
6458 * number), they would subsribe to AEN (asynchronous event notification) and
6459 * wait for the events to happen.
6460 */
6461 static int
6462 megasas_get_seq_num(struct megasas_instance *instance,
6463 struct megasas_evt_log_info *eli)
6464 {
6465 struct megasas_cmd *cmd;
6466 struct megasas_dcmd_frame *dcmd;
6467 struct megasas_evt_log_info *el_info;
6468 dma_addr_t el_info_h = 0;
6469 int ret;
6470
6471 cmd = megasas_get_cmd(instance);
6472
6473 if (!cmd) {
6474 return -ENOMEM;
6475 }
6476
6477 dcmd = &cmd->frame->dcmd;
6478 el_info = dma_alloc_coherent(&instance->pdev->dev,
6479 sizeof(struct megasas_evt_log_info),
6480 &el_info_h, GFP_KERNEL);
6481 if (!el_info) {
6482 megasas_return_cmd(instance, cmd);
6483 return -ENOMEM;
6484 }
6485
6486 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
6487
6488 dcmd->cmd = MFI_CMD_DCMD;
6489 dcmd->cmd_status = 0x0;
6490 dcmd->sge_count = 1;
6491 dcmd->flags = MFI_FRAME_DIR_READ;
6492 dcmd->timeout = 0;
6493 dcmd->pad_0 = 0;
6494 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct megasas_evt_log_info));
6495 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_EVENT_GET_INFO);
6496
6497 megasas_set_dma_settings(instance, dcmd, el_info_h,
6498 sizeof(struct megasas_evt_log_info));
6499
6500 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS);
6501 if (ret != DCMD_SUCCESS) {
6502 dev_err(&instance->pdev->dev, "Failed from %s %d\n",
6503 __func__, __LINE__);
6504 goto dcmd_failed;
6505 }
6506
6507 /*
6508 * Copy the data back into callers buffer
6509 */
6510 eli->newest_seq_num = el_info->newest_seq_num;
6511 eli->oldest_seq_num = el_info->oldest_seq_num;
6512 eli->clear_seq_num = el_info->clear_seq_num;
6513 eli->shutdown_seq_num = el_info->shutdown_seq_num;
6514 eli->boot_seq_num = el_info->boot_seq_num;
6515
6516 dcmd_failed:
6517 dma_free_coherent(&instance->pdev->dev,
6518 sizeof(struct megasas_evt_log_info),
6519 el_info, el_info_h);
6520
6521 megasas_return_cmd(instance, cmd);
6522
6523 return ret;
6524 }
6525
6526 /**
6527 * megasas_register_aen - Registers for asynchronous event notification
6528 * @instance: Adapter soft state
6529 * @seq_num: The starting sequence number
6530 * @class_locale_word: Class of the event
6531 *
6532 * This function subscribes for AEN for events beyond the @seq_num. It requests
6533 * to be notified if and only if the event is of type @class_locale
6534 */
6535 static int
6536 megasas_register_aen(struct megasas_instance *instance, u32 seq_num,
6537 u32 class_locale_word)
6538 {
6539 int ret_val;
6540 struct megasas_cmd *cmd;
6541 struct megasas_dcmd_frame *dcmd;
6542 union megasas_evt_class_locale curr_aen;
6543 union megasas_evt_class_locale prev_aen;
6544
6545 /*
6546 * If there an AEN pending already (aen_cmd), check if the
6547 * class_locale of that pending AEN is inclusive of the new
6548 * AEN request we currently have. If it is, then we don't have
6549 * to do anything. In other words, whichever events the current
6550 * AEN request is subscribing to, have already been subscribed
6551 * to.
6552 *
6553 * If the old_cmd is _not_ inclusive, then we have to abort
6554 * that command, form a class_locale that is superset of both
6555 * old and current and re-issue to the FW
6556 */
6557
6558 curr_aen.word = class_locale_word;
6559
6560 if (instance->aen_cmd) {
6561
6562 prev_aen.word =
6563 le32_to_cpu(instance->aen_cmd->frame->dcmd.mbox.w[1]);
6564
6565 if ((curr_aen.members.class < MFI_EVT_CLASS_DEBUG) ||
6566 (curr_aen.members.class > MFI_EVT_CLASS_DEAD)) {
6567 dev_info(&instance->pdev->dev,
6568 "%s %d out of range class %d send by application\n",
6569 __func__, __LINE__, curr_aen.members.class);
6570 return 0;
6571 }
6572
6573 /*
6574 * A class whose enum value is smaller is inclusive of all
6575 * higher values. If a PROGRESS (= -1) was previously
6576 * registered, then a new registration requests for higher
6577 * classes need not be sent to FW. They are automatically
6578 * included.
6579 *
6580 * Locale numbers don't have such hierarchy. They are bitmap
6581 * values
6582 */
6583 if ((prev_aen.members.class <= curr_aen.members.class) &&
6584 !((prev_aen.members.locale & curr_aen.members.locale) ^
6585 curr_aen.members.locale)) {
6586 /*
6587 * Previously issued event registration includes
6588 * current request. Nothing to do.
6589 */
6590 return 0;
6591 } else {
6592 curr_aen.members.locale |= prev_aen.members.locale;
6593
6594 if (prev_aen.members.class < curr_aen.members.class)
6595 curr_aen.members.class = prev_aen.members.class;
6596
6597 instance->aen_cmd->abort_aen = 1;
6598 ret_val = megasas_issue_blocked_abort_cmd(instance,
6599 instance->
6600 aen_cmd, 30);
6601
6602 if (ret_val) {
6603 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to abort "
6604 "previous AEN command\n");
6605 return ret_val;
6606 }
6607 }
6608 }
6609
6610 cmd = megasas_get_cmd(instance);
6611
6612 if (!cmd)
6613 return -ENOMEM;
6614
6615 dcmd = &cmd->frame->dcmd;
6616
6617 memset(instance->evt_detail, 0, sizeof(struct megasas_evt_detail));
6618
6619 /*
6620 * Prepare DCMD for aen registration
6621 */
6622 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
6623
6624 dcmd->cmd = MFI_CMD_DCMD;
6625 dcmd->cmd_status = 0x0;
6626 dcmd->sge_count = 1;
6627 dcmd->flags = MFI_FRAME_DIR_READ;
6628 dcmd->timeout = 0;
6629 dcmd->pad_0 = 0;
6630 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct megasas_evt_detail));
6631 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_EVENT_WAIT);
6632 dcmd->mbox.w[0] = cpu_to_le32(seq_num);
6633 instance->last_seq_num = seq_num;
6634 dcmd->mbox.w[1] = cpu_to_le32(curr_aen.word);
6635
6636 megasas_set_dma_settings(instance, dcmd, instance->evt_detail_h,
6637 sizeof(struct megasas_evt_detail));
6638
6639 if (instance->aen_cmd != NULL) {
6640 megasas_return_cmd(instance, cmd);
6641 return 0;
6642 }
6643
6644 /*
6645 * Store reference to the cmd used to register for AEN. When an
6646 * application wants us to register for AEN, we have to abort this
6647 * cmd and re-register with a new EVENT LOCALE supplied by that app
6648 */
6649 instance->aen_cmd = cmd;
6650
6651 /*
6652 * Issue the aen registration frame
6653 */
6654 instance->instancet->issue_dcmd(instance, cmd);
6655
6656 return 0;
6657 }
6658
6659 /* megasas_get_target_prop - Send DCMD with below details to firmware.
6660 *
6661 * This DCMD will fetch few properties of LD/system PD defined
6662 * in MR_TARGET_DEV_PROPERTIES. eg. Queue Depth, MDTS value.
6663 *
6664 * DCMD send by drivers whenever new target is added to the OS.
6665 *
6666 * dcmd.opcode - MR_DCMD_DEV_GET_TARGET_PROP
6667 * dcmd.mbox.b[0] - DCMD is to be fired for LD or system PD.
6668 * 0 = system PD, 1 = LD.
6669 * dcmd.mbox.s[1] - TargetID for LD/system PD.
6670 * dcmd.sge IN - Pointer to return MR_TARGET_DEV_PROPERTIES.
6671 *
6672 * @instance: Adapter soft state
6673 * @sdev: OS provided scsi device
6674 *
6675 * Returns 0 on success non-zero on failure.
6676 */
6677 int
6678 megasas_get_target_prop(struct megasas_instance *instance,
6679 struct scsi_device *sdev)
6680 {
6681 int ret;
6682 struct megasas_cmd *cmd;
6683 struct megasas_dcmd_frame *dcmd;
6684 u16 targetId = ((sdev->channel % 2) * MEGASAS_MAX_DEV_PER_CHANNEL) +
6685 sdev->id;
6686
6687 cmd = megasas_get_cmd(instance);
6688
6689 if (!cmd) {
6690 dev_err(&instance->pdev->dev,
6691 "Failed to get cmd %s\n", __func__);
6692 return -ENOMEM;
6693 }
6694
6695 dcmd = &cmd->frame->dcmd;
6696
6697 memset(instance->tgt_prop, 0, sizeof(*instance->tgt_prop));
6698 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
6699 dcmd->mbox.b[0] = MEGASAS_IS_LOGICAL(sdev);
6700
6701 dcmd->mbox.s[1] = cpu_to_le16(targetId);
6702 dcmd->cmd = MFI_CMD_DCMD;
6703 dcmd->cmd_status = 0xFF;
6704 dcmd->sge_count = 1;
6705 dcmd->flags = MFI_FRAME_DIR_READ;
6706 dcmd->timeout = 0;
6707 dcmd->pad_0 = 0;
6708 dcmd->data_xfer_len =
6709 cpu_to_le32(sizeof(struct MR_TARGET_PROPERTIES));
6710 dcmd->opcode = cpu_to_le32(MR_DCMD_DRV_GET_TARGET_PROP);
6711
6712 megasas_set_dma_settings(instance, dcmd, instance->tgt_prop_h,
6713 sizeof(struct MR_TARGET_PROPERTIES));
6714
6715 if ((instance->adapter_type != MFI_SERIES) &&
6716 !instance->mask_interrupts)
6717 ret = megasas_issue_blocked_cmd(instance,
6718 cmd, MFI_IO_TIMEOUT_SECS);
6719 else
6720 ret = megasas_issue_polled(instance, cmd);
6721
6722 switch (ret) {
6723 case DCMD_TIMEOUT:
6724 switch (dcmd_timeout_ocr_possible(instance)) {
6725 case INITIATE_OCR:
6726 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
6727 mutex_unlock(&instance->reset_mutex);
6728 megasas_reset_fusion(instance->host,
6729 MFI_IO_TIMEOUT_OCR);
6730 mutex_lock(&instance->reset_mutex);
6731 break;
6732 case KILL_ADAPTER:
6733 megaraid_sas_kill_hba(instance);
6734 break;
6735 case IGNORE_TIMEOUT:
6736 dev_info(&instance->pdev->dev,
6737 "Ignore DCMD timeout: %s %d\n",
6738 __func__, __LINE__);
6739 break;
6740 }
6741 break;
6742
6743 default:
6744 megasas_return_cmd(instance, cmd);
6745 }
6746 if (ret != DCMD_SUCCESS)
6747 dev_err(&instance->pdev->dev,
6748 "return from %s %d return value %d\n",
6749 __func__, __LINE__, ret);
6750
6751 return ret;
6752 }
6753
6754 /**
6755 * megasas_start_aen - Subscribes to AEN during driver load time
6756 * @instance: Adapter soft state
6757 */
6758 static int megasas_start_aen(struct megasas_instance *instance)
6759 {
6760 struct megasas_evt_log_info eli;
6761 union megasas_evt_class_locale class_locale;
6762
6763 /*
6764 * Get the latest sequence number from FW
6765 */
6766 memset(&eli, 0, sizeof(eli));
6767
6768 if (megasas_get_seq_num(instance, &eli))
6769 return -1;
6770
6771 /*
6772 * Register AEN with FW for latest sequence number plus 1
6773 */
6774 class_locale.members.reserved = 0;
6775 class_locale.members.locale = MR_EVT_LOCALE_ALL;
6776 class_locale.members.class = MR_EVT_CLASS_DEBUG;
6777
6778 return megasas_register_aen(instance,
6779 le32_to_cpu(eli.newest_seq_num) + 1,
6780 class_locale.word);
6781 }
6782
6783 /**
6784 * megasas_io_attach - Attaches this driver to SCSI mid-layer
6785 * @instance: Adapter soft state
6786 */
6787 static int megasas_io_attach(struct megasas_instance *instance)
6788 {
6789 struct Scsi_Host *host = instance->host;
6790
6791 /*
6792 * Export parameters required by SCSI mid-layer
6793 */
6794 host->unique_id = instance->unique_id;
6795 host->can_queue = instance->max_scsi_cmds;
6796 host->this_id = instance->init_id;
6797 host->sg_tablesize = instance->max_num_sge;
6798
6799 if (instance->fw_support_ieee)
6800 instance->max_sectors_per_req = MEGASAS_MAX_SECTORS_IEEE;
6801
6802 /*
6803 * Check if the module parameter value for max_sectors can be used
6804 */
6805 if (max_sectors && max_sectors < instance->max_sectors_per_req)
6806 instance->max_sectors_per_req = max_sectors;
6807 else {
6808 if (max_sectors) {
6809 if (((instance->pdev->device ==
6810 PCI_DEVICE_ID_LSI_SAS1078GEN2) ||
6811 (instance->pdev->device ==
6812 PCI_DEVICE_ID_LSI_SAS0079GEN2)) &&
6813 (max_sectors <= MEGASAS_MAX_SECTORS)) {
6814 instance->max_sectors_per_req = max_sectors;
6815 } else {
6816 dev_info(&instance->pdev->dev, "max_sectors should be > 0"
6817 "and <= %d (or < 1MB for GEN2 controller)\n",
6818 instance->max_sectors_per_req);
6819 }
6820 }
6821 }
6822
6823 host->max_sectors = instance->max_sectors_per_req;
6824 host->cmd_per_lun = MEGASAS_DEFAULT_CMD_PER_LUN;
6825 host->max_channel = MEGASAS_MAX_CHANNELS - 1;
6826 host->max_id = MEGASAS_MAX_DEV_PER_CHANNEL;
6827 host->max_lun = MEGASAS_MAX_LUN;
6828 host->max_cmd_len = 16;
6829
6830 /* Use shared host tagset only for fusion adaptors
6831 * if there are managed interrupts (smp affinity enabled case).
6832 * Single msix_vectors in kdump, so shared host tag is also disabled.
6833 */
6834
6835 host->host_tagset = 0;
6836 host->nr_hw_queues = 1;
6837
6838 if ((instance->adapter_type != MFI_SERIES) &&
6839 (instance->msix_vectors > instance->low_latency_index_start) &&
6840 host_tagset_enable &&
6841 instance->smp_affinity_enable) {
6842 host->host_tagset = 1;
6843 host->nr_hw_queues = instance->msix_vectors -
6844 instance->low_latency_index_start;
6845 }
6846
6847 dev_info(&instance->pdev->dev,
6848 "Max firmware commands: %d shared with nr_hw_queues = %d\n",
6849 instance->max_fw_cmds, host->nr_hw_queues);
6850 /*
6851 * Notify the mid-layer about the new controller
6852 */
6853 if (scsi_add_host(host, &instance->pdev->dev)) {
6854 dev_err(&instance->pdev->dev,
6855 "Failed to add host from %s %d\n",
6856 __func__, __LINE__);
6857 return -ENODEV;
6858 }
6859
6860 return 0;
6861 }
6862
6863 /**
6864 * megasas_set_dma_mask - Set DMA mask for supported controllers
6865 *
6866 * @instance: Adapter soft state
6867 * Description:
6868 *
6869 * For Ventura, driver/FW will operate in 63bit DMA addresses.
6870 *
6871 * For invader-
6872 * By default, driver/FW will operate in 32bit DMA addresses
6873 * for consistent DMA mapping but if 32 bit consistent
6874 * DMA mask fails, driver will try with 63 bit consistent
6875 * mask provided FW is true 63bit DMA capable
6876 *
6877 * For older controllers(Thunderbolt and MFI based adapters)-
6878 * driver/FW will operate in 32 bit consistent DMA addresses.
6879 */
6880 static int
6881 megasas_set_dma_mask(struct megasas_instance *instance)
6882 {
6883 u64 consistent_mask;
6884 struct pci_dev *pdev;
6885 u32 scratch_pad_1;
6886
6887 pdev = instance->pdev;
6888 consistent_mask = (instance->adapter_type >= VENTURA_SERIES) ?
6889 DMA_BIT_MASK(63) : DMA_BIT_MASK(32);
6890
6891 if (IS_DMA64) {
6892 if (dma_set_mask(&pdev->dev, DMA_BIT_MASK(63)) &&
6893 dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)))
6894 goto fail_set_dma_mask;
6895
6896 if ((*pdev->dev.dma_mask == DMA_BIT_MASK(63)) &&
6897 (dma_set_coherent_mask(&pdev->dev, consistent_mask) &&
6898 dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)))) {
6899 /*
6900 * If 32 bit DMA mask fails, then try for 64 bit mask
6901 * for FW capable of handling 64 bit DMA.
6902 */
6903 scratch_pad_1 = megasas_readl
6904 (instance, &instance->reg_set->outbound_scratch_pad_1);
6905
6906 if (!(scratch_pad_1 & MR_CAN_HANDLE_64_BIT_DMA_OFFSET))
6907 goto fail_set_dma_mask;
6908 else if (dma_set_mask_and_coherent(&pdev->dev,
6909 DMA_BIT_MASK(63)))
6910 goto fail_set_dma_mask;
6911 }
6912 } else if (dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)))
6913 goto fail_set_dma_mask;
6914
6915 if (pdev->dev.coherent_dma_mask == DMA_BIT_MASK(32))
6916 instance->consistent_mask_64bit = false;
6917 else
6918 instance->consistent_mask_64bit = true;
6919
6920 dev_info(&pdev->dev, "%s bit DMA mask and %s bit consistent mask\n",
6921 ((*pdev->dev.dma_mask == DMA_BIT_MASK(63)) ? "63" : "32"),
6922 (instance->consistent_mask_64bit ? "63" : "32"));
6923
6924 return 0;
6925
6926 fail_set_dma_mask:
6927 dev_err(&pdev->dev, "Failed to set DMA mask\n");
6928 return -1;
6929
6930 }
6931
6932 /*
6933 * megasas_set_adapter_type - Set adapter type.
6934 * Supported controllers can be divided in
6935 * different categories-
6936 * enum MR_ADAPTER_TYPE {
6937 * MFI_SERIES = 1,
6938 * THUNDERBOLT_SERIES = 2,
6939 * INVADER_SERIES = 3,
6940 * VENTURA_SERIES = 4,
6941 * AERO_SERIES = 5,
6942 * };
6943 * @instance: Adapter soft state
6944 * return: void
6945 */
6946 static inline void megasas_set_adapter_type(struct megasas_instance *instance)
6947 {
6948 if ((instance->pdev->vendor == PCI_VENDOR_ID_DELL) &&
6949 (instance->pdev->device == PCI_DEVICE_ID_DELL_PERC5)) {
6950 instance->adapter_type = MFI_SERIES;
6951 } else {
6952 switch (instance->pdev->device) {
6953 case PCI_DEVICE_ID_LSI_AERO_10E1:
6954 case PCI_DEVICE_ID_LSI_AERO_10E2:
6955 case PCI_DEVICE_ID_LSI_AERO_10E5:
6956 case PCI_DEVICE_ID_LSI_AERO_10E6:
6957 instance->adapter_type = AERO_SERIES;
6958 break;
6959 case PCI_DEVICE_ID_LSI_VENTURA:
6960 case PCI_DEVICE_ID_LSI_CRUSADER:
6961 case PCI_DEVICE_ID_LSI_HARPOON:
6962 case PCI_DEVICE_ID_LSI_TOMCAT:
6963 case PCI_DEVICE_ID_LSI_VENTURA_4PORT:
6964 case PCI_DEVICE_ID_LSI_CRUSADER_4PORT:
6965 instance->adapter_type = VENTURA_SERIES;
6966 break;
6967 case PCI_DEVICE_ID_LSI_FUSION:
6968 case PCI_DEVICE_ID_LSI_PLASMA:
6969 instance->adapter_type = THUNDERBOLT_SERIES;
6970 break;
6971 case PCI_DEVICE_ID_LSI_INVADER:
6972 case PCI_DEVICE_ID_LSI_INTRUDER:
6973 case PCI_DEVICE_ID_LSI_INTRUDER_24:
6974 case PCI_DEVICE_ID_LSI_CUTLASS_52:
6975 case PCI_DEVICE_ID_LSI_CUTLASS_53:
6976 case PCI_DEVICE_ID_LSI_FURY:
6977 instance->adapter_type = INVADER_SERIES;
6978 break;
6979 default: /* For all other supported controllers */
6980 instance->adapter_type = MFI_SERIES;
6981 break;
6982 }
6983 }
6984 }
6985
6986 static inline int megasas_alloc_mfi_ctrl_mem(struct megasas_instance *instance)
6987 {
6988 instance->producer = dma_alloc_coherent(&instance->pdev->dev,
6989 sizeof(u32), &instance->producer_h, GFP_KERNEL);
6990 instance->consumer = dma_alloc_coherent(&instance->pdev->dev,
6991 sizeof(u32), &instance->consumer_h, GFP_KERNEL);
6992
6993 if (!instance->producer || !instance->consumer) {
6994 dev_err(&instance->pdev->dev,
6995 "Failed to allocate memory for producer, consumer\n");
6996 return -1;
6997 }
6998
6999 *instance->producer = 0;
7000 *instance->consumer = 0;
7001 return 0;
7002 }
7003
7004 /**
7005 * megasas_alloc_ctrl_mem - Allocate per controller memory for core data
7006 * structures which are not common across MFI
7007 * adapters and fusion adapters.
7008 * For MFI based adapters, allocate producer and
7009 * consumer buffers. For fusion adapters, allocate
7010 * memory for fusion context.
7011 * @instance: Adapter soft state
7012 * return: 0 for SUCCESS
7013 */
7014 static int megasas_alloc_ctrl_mem(struct megasas_instance *instance)
7015 {
7016 instance->reply_map = kcalloc(nr_cpu_ids, sizeof(unsigned int),
7017 GFP_KERNEL);
7018 if (!instance->reply_map)
7019 return -ENOMEM;
7020
7021 switch (instance->adapter_type) {
7022 case MFI_SERIES:
7023 if (megasas_alloc_mfi_ctrl_mem(instance))
7024 goto fail;
7025 break;
7026 case AERO_SERIES:
7027 case VENTURA_SERIES:
7028 case THUNDERBOLT_SERIES:
7029 case INVADER_SERIES:
7030 if (megasas_alloc_fusion_context(instance))
7031 goto fail;
7032 break;
7033 }
7034
7035 return 0;
7036 fail:
7037 kfree(instance->reply_map);
7038 instance->reply_map = NULL;
7039 return -ENOMEM;
7040 }
7041
7042 /*
7043 * megasas_free_ctrl_mem - Free fusion context for fusion adapters and
7044 * producer, consumer buffers for MFI adapters
7045 *
7046 * @instance - Adapter soft instance
7047 *
7048 */
7049 static inline void megasas_free_ctrl_mem(struct megasas_instance *instance)
7050 {
7051 kfree(instance->reply_map);
7052 if (instance->adapter_type == MFI_SERIES) {
7053 if (instance->producer)
7054 dma_free_coherent(&instance->pdev->dev, sizeof(u32),
7055 instance->producer,
7056 instance->producer_h);
7057 if (instance->consumer)
7058 dma_free_coherent(&instance->pdev->dev, sizeof(u32),
7059 instance->consumer,
7060 instance->consumer_h);
7061 } else {
7062 megasas_free_fusion_context(instance);
7063 }
7064 }
7065
7066 /**
7067 * megasas_alloc_ctrl_dma_buffers - Allocate consistent DMA buffers during
7068 * driver load time
7069 *
7070 * @instance: Adapter soft instance
7071 *
7072 * @return: O for SUCCESS
7073 */
7074 static inline
7075 int megasas_alloc_ctrl_dma_buffers(struct megasas_instance *instance)
7076 {
7077 struct pci_dev *pdev = instance->pdev;
7078 struct fusion_context *fusion = instance->ctrl_context;
7079
7080 instance->evt_detail = dma_alloc_coherent(&pdev->dev,
7081 sizeof(struct megasas_evt_detail),
7082 &instance->evt_detail_h, GFP_KERNEL);
7083
7084 if (!instance->evt_detail) {
7085 dev_err(&instance->pdev->dev,
7086 "Failed to allocate event detail buffer\n");
7087 return -ENOMEM;
7088 }
7089
7090 if (fusion) {
7091 fusion->ioc_init_request =
7092 dma_alloc_coherent(&pdev->dev,
7093 sizeof(struct MPI2_IOC_INIT_REQUEST),
7094 &fusion->ioc_init_request_phys,
7095 GFP_KERNEL);
7096
7097 if (!fusion->ioc_init_request) {
7098 dev_err(&pdev->dev,
7099 "Failed to allocate PD list buffer\n");
7100 return -ENOMEM;
7101 }
7102
7103 instance->snapdump_prop = dma_alloc_coherent(&pdev->dev,
7104 sizeof(struct MR_SNAPDUMP_PROPERTIES),
7105 &instance->snapdump_prop_h, GFP_KERNEL);
7106
7107 if (!instance->snapdump_prop)
7108 dev_err(&pdev->dev,
7109 "Failed to allocate snapdump properties buffer\n");
7110
7111 instance->host_device_list_buf = dma_alloc_coherent(&pdev->dev,
7112 HOST_DEVICE_LIST_SZ,
7113 &instance->host_device_list_buf_h,
7114 GFP_KERNEL);
7115
7116 if (!instance->host_device_list_buf) {
7117 dev_err(&pdev->dev,
7118 "Failed to allocate targetid list buffer\n");
7119 return -ENOMEM;
7120 }
7121
7122 }
7123
7124 instance->pd_list_buf =
7125 dma_alloc_coherent(&pdev->dev,
7126 MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST),
7127 &instance->pd_list_buf_h, GFP_KERNEL);
7128
7129 if (!instance->pd_list_buf) {
7130 dev_err(&pdev->dev, "Failed to allocate PD list buffer\n");
7131 return -ENOMEM;
7132 }
7133
7134 instance->ctrl_info_buf =
7135 dma_alloc_coherent(&pdev->dev,
7136 sizeof(struct megasas_ctrl_info),
7137 &instance->ctrl_info_buf_h, GFP_KERNEL);
7138
7139 if (!instance->ctrl_info_buf) {
7140 dev_err(&pdev->dev,
7141 "Failed to allocate controller info buffer\n");
7142 return -ENOMEM;
7143 }
7144
7145 instance->ld_list_buf =
7146 dma_alloc_coherent(&pdev->dev,
7147 sizeof(struct MR_LD_LIST),
7148 &instance->ld_list_buf_h, GFP_KERNEL);
7149
7150 if (!instance->ld_list_buf) {
7151 dev_err(&pdev->dev, "Failed to allocate LD list buffer\n");
7152 return -ENOMEM;
7153 }
7154
7155 instance->ld_targetid_list_buf =
7156 dma_alloc_coherent(&pdev->dev,
7157 sizeof(struct MR_LD_TARGETID_LIST),
7158 &instance->ld_targetid_list_buf_h, GFP_KERNEL);
7159
7160 if (!instance->ld_targetid_list_buf) {
7161 dev_err(&pdev->dev,
7162 "Failed to allocate LD targetid list buffer\n");
7163 return -ENOMEM;
7164 }
7165
7166 if (!reset_devices) {
7167 instance->system_info_buf =
7168 dma_alloc_coherent(&pdev->dev,
7169 sizeof(struct MR_DRV_SYSTEM_INFO),
7170 &instance->system_info_h, GFP_KERNEL);
7171 instance->pd_info =
7172 dma_alloc_coherent(&pdev->dev,
7173 sizeof(struct MR_PD_INFO),
7174 &instance->pd_info_h, GFP_KERNEL);
7175 instance->tgt_prop =
7176 dma_alloc_coherent(&pdev->dev,
7177 sizeof(struct MR_TARGET_PROPERTIES),
7178 &instance->tgt_prop_h, GFP_KERNEL);
7179 instance->crash_dump_buf =
7180 dma_alloc_coherent(&pdev->dev, CRASH_DMA_BUF_SIZE,
7181 &instance->crash_dump_h, GFP_KERNEL);
7182
7183 if (!instance->system_info_buf)
7184 dev_err(&instance->pdev->dev,
7185 "Failed to allocate system info buffer\n");
7186
7187 if (!instance->pd_info)
7188 dev_err(&instance->pdev->dev,
7189 "Failed to allocate pd_info buffer\n");
7190
7191 if (!instance->tgt_prop)
7192 dev_err(&instance->pdev->dev,
7193 "Failed to allocate tgt_prop buffer\n");
7194
7195 if (!instance->crash_dump_buf)
7196 dev_err(&instance->pdev->dev,
7197 "Failed to allocate crash dump buffer\n");
7198 }
7199
7200 return 0;
7201 }
7202
7203 /*
7204 * megasas_free_ctrl_dma_buffers - Free consistent DMA buffers allocated
7205 * during driver load time
7206 *
7207 * @instance- Adapter soft instance
7208 *
7209 */
7210 static inline
7211 void megasas_free_ctrl_dma_buffers(struct megasas_instance *instance)
7212 {
7213 struct pci_dev *pdev = instance->pdev;
7214 struct fusion_context *fusion = instance->ctrl_context;
7215
7216 if (instance->evt_detail)
7217 dma_free_coherent(&pdev->dev, sizeof(struct megasas_evt_detail),
7218 instance->evt_detail,
7219 instance->evt_detail_h);
7220
7221 if (fusion && fusion->ioc_init_request)
7222 dma_free_coherent(&pdev->dev,
7223 sizeof(struct MPI2_IOC_INIT_REQUEST),
7224 fusion->ioc_init_request,
7225 fusion->ioc_init_request_phys);
7226
7227 if (instance->pd_list_buf)
7228 dma_free_coherent(&pdev->dev,
7229 MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST),
7230 instance->pd_list_buf,
7231 instance->pd_list_buf_h);
7232
7233 if (instance->ld_list_buf)
7234 dma_free_coherent(&pdev->dev, sizeof(struct MR_LD_LIST),
7235 instance->ld_list_buf,
7236 instance->ld_list_buf_h);
7237
7238 if (instance->ld_targetid_list_buf)
7239 dma_free_coherent(&pdev->dev, sizeof(struct MR_LD_TARGETID_LIST),
7240 instance->ld_targetid_list_buf,
7241 instance->ld_targetid_list_buf_h);
7242
7243 if (instance->ctrl_info_buf)
7244 dma_free_coherent(&pdev->dev, sizeof(struct megasas_ctrl_info),
7245 instance->ctrl_info_buf,
7246 instance->ctrl_info_buf_h);
7247
7248 if (instance->system_info_buf)
7249 dma_free_coherent(&pdev->dev, sizeof(struct MR_DRV_SYSTEM_INFO),
7250 instance->system_info_buf,
7251 instance->system_info_h);
7252
7253 if (instance->pd_info)
7254 dma_free_coherent(&pdev->dev, sizeof(struct MR_PD_INFO),
7255 instance->pd_info, instance->pd_info_h);
7256
7257 if (instance->tgt_prop)
7258 dma_free_coherent(&pdev->dev, sizeof(struct MR_TARGET_PROPERTIES),
7259 instance->tgt_prop, instance->tgt_prop_h);
7260
7261 if (instance->crash_dump_buf)
7262 dma_free_coherent(&pdev->dev, CRASH_DMA_BUF_SIZE,
7263 instance->crash_dump_buf,
7264 instance->crash_dump_h);
7265
7266 if (instance->snapdump_prop)
7267 dma_free_coherent(&pdev->dev,
7268 sizeof(struct MR_SNAPDUMP_PROPERTIES),
7269 instance->snapdump_prop,
7270 instance->snapdump_prop_h);
7271
7272 if (instance->host_device_list_buf)
7273 dma_free_coherent(&pdev->dev,
7274 HOST_DEVICE_LIST_SZ,
7275 instance->host_device_list_buf,
7276 instance->host_device_list_buf_h);
7277
7278 }
7279
7280 /*
7281 * megasas_init_ctrl_params - Initialize controller's instance
7282 * parameters before FW init
7283 * @instance - Adapter soft instance
7284 * @return - void
7285 */
7286 static inline void megasas_init_ctrl_params(struct megasas_instance *instance)
7287 {
7288 instance->fw_crash_state = UNAVAILABLE;
7289
7290 megasas_poll_wait_aen = 0;
7291 instance->issuepend_done = 1;
7292 atomic_set(&instance->adprecovery, MEGASAS_HBA_OPERATIONAL);
7293
7294 /*
7295 * Initialize locks and queues
7296 */
7297 INIT_LIST_HEAD(&instance->cmd_pool);
7298 INIT_LIST_HEAD(&instance->internal_reset_pending_q);
7299
7300 atomic_set(&instance->fw_outstanding, 0);
7301 atomic64_set(&instance->total_io_count, 0);
7302
7303 init_waitqueue_head(&instance->int_cmd_wait_q);
7304 init_waitqueue_head(&instance->abort_cmd_wait_q);
7305
7306 spin_lock_init(&instance->crashdump_lock);
7307 spin_lock_init(&instance->mfi_pool_lock);
7308 spin_lock_init(&instance->hba_lock);
7309 spin_lock_init(&instance->stream_lock);
7310 spin_lock_init(&instance->completion_lock);
7311
7312 mutex_init(&instance->reset_mutex);
7313
7314 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
7315 (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY))
7316 instance->flag_ieee = 1;
7317
7318 megasas_dbg_lvl = 0;
7319 instance->flag = 0;
7320 instance->unload = 1;
7321 instance->last_time = 0;
7322 instance->disableOnlineCtrlReset = 1;
7323 instance->UnevenSpanSupport = 0;
7324 instance->smp_affinity_enable = smp_affinity_enable ? true : false;
7325 instance->msix_load_balance = false;
7326
7327 if (instance->adapter_type != MFI_SERIES)
7328 INIT_WORK(&instance->work_init, megasas_fusion_ocr_wq);
7329 else
7330 INIT_WORK(&instance->work_init, process_fw_state_change_wq);
7331 }
7332
7333 /**
7334 * megasas_probe_one - PCI hotplug entry point
7335 * @pdev: PCI device structure
7336 * @id: PCI ids of supported hotplugged adapter
7337 */
7338 static int megasas_probe_one(struct pci_dev *pdev,
7339 const struct pci_device_id *id)
7340 {
7341 int rval, pos;
7342 struct Scsi_Host *host;
7343 struct megasas_instance *instance;
7344 u16 control = 0;
7345
7346 switch (pdev->device) {
7347 case PCI_DEVICE_ID_LSI_AERO_10E0:
7348 case PCI_DEVICE_ID_LSI_AERO_10E3:
7349 case PCI_DEVICE_ID_LSI_AERO_10E4:
7350 case PCI_DEVICE_ID_LSI_AERO_10E7:
7351 dev_err(&pdev->dev, "Adapter is in non secure mode\n");
7352 return 1;
7353 case PCI_DEVICE_ID_LSI_AERO_10E1:
7354 case PCI_DEVICE_ID_LSI_AERO_10E5:
7355 dev_info(&pdev->dev, "Adapter is in configurable secure mode\n");
7356 break;
7357 }
7358
7359 /* Reset MSI-X in the kdump kernel */
7360 if (reset_devices) {
7361 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
7362 if (pos) {
7363 pci_read_config_word(pdev, pos + PCI_MSIX_FLAGS,
7364 &control);
7365 if (control & PCI_MSIX_FLAGS_ENABLE) {
7366 dev_info(&pdev->dev, "resetting MSI-X\n");
7367 pci_write_config_word(pdev,
7368 pos + PCI_MSIX_FLAGS,
7369 control &
7370 ~PCI_MSIX_FLAGS_ENABLE);
7371 }
7372 }
7373 }
7374
7375 /*
7376 * PCI prepping: enable device set bus mastering and dma mask
7377 */
7378 rval = pci_enable_device_mem(pdev);
7379
7380 if (rval) {
7381 return rval;
7382 }
7383
7384 pci_set_master(pdev);
7385
7386 host = scsi_host_alloc(&megasas_template,
7387 sizeof(struct megasas_instance));
7388
7389 if (!host) {
7390 dev_printk(KERN_DEBUG, &pdev->dev, "scsi_host_alloc failed\n");
7391 goto fail_alloc_instance;
7392 }
7393
7394 instance = (struct megasas_instance *)host->hostdata;
7395 memset(instance, 0, sizeof(*instance));
7396 atomic_set(&instance->fw_reset_no_pci_access, 0);
7397
7398 /*
7399 * Initialize PCI related and misc parameters
7400 */
7401 instance->pdev = pdev;
7402 instance->host = host;
7403 instance->unique_id = pdev->bus->number << 8 | pdev->devfn;
7404 instance->init_id = MEGASAS_DEFAULT_INIT_ID;
7405
7406 megasas_set_adapter_type(instance);
7407
7408 /*
7409 * Initialize MFI Firmware
7410 */
7411 if (megasas_init_fw(instance))
7412 goto fail_init_mfi;
7413
7414 if (instance->requestorId) {
7415 if (instance->PlasmaFW111) {
7416 instance->vf_affiliation_111 =
7417 dma_alloc_coherent(&pdev->dev,
7418 sizeof(struct MR_LD_VF_AFFILIATION_111),
7419 &instance->vf_affiliation_111_h,
7420 GFP_KERNEL);
7421 if (!instance->vf_affiliation_111)
7422 dev_warn(&pdev->dev, "Can't allocate "
7423 "memory for VF affiliation buffer\n");
7424 } else {
7425 instance->vf_affiliation =
7426 dma_alloc_coherent(&pdev->dev,
7427 (MAX_LOGICAL_DRIVES + 1) *
7428 sizeof(struct MR_LD_VF_AFFILIATION),
7429 &instance->vf_affiliation_h,
7430 GFP_KERNEL);
7431 if (!instance->vf_affiliation)
7432 dev_warn(&pdev->dev, "Can't allocate "
7433 "memory for VF affiliation buffer\n");
7434 }
7435 }
7436
7437 /*
7438 * Store instance in PCI softstate
7439 */
7440 pci_set_drvdata(pdev, instance);
7441
7442 /*
7443 * Add this controller to megasas_mgmt_info structure so that it
7444 * can be exported to management applications
7445 */
7446 megasas_mgmt_info.count++;
7447 megasas_mgmt_info.instance[megasas_mgmt_info.max_index] = instance;
7448 megasas_mgmt_info.max_index++;
7449
7450 /*
7451 * Register with SCSI mid-layer
7452 */
7453 if (megasas_io_attach(instance))
7454 goto fail_io_attach;
7455
7456 instance->unload = 0;
7457 /*
7458 * Trigger SCSI to scan our drives
7459 */
7460 if (!instance->enable_fw_dev_list ||
7461 (instance->host_device_list_buf->count > 0))
7462 scsi_scan_host(host);
7463
7464 /*
7465 * Initiate AEN (Asynchronous Event Notification)
7466 */
7467 if (megasas_start_aen(instance)) {
7468 dev_printk(KERN_DEBUG, &pdev->dev, "start aen failed\n");
7469 goto fail_start_aen;
7470 }
7471
7472 megasas_setup_debugfs(instance);
7473
7474 /* Get current SR-IOV LD/VF affiliation */
7475 if (instance->requestorId)
7476 megasas_get_ld_vf_affiliation(instance, 1);
7477
7478 return 0;
7479
7480 fail_start_aen:
7481 fail_io_attach:
7482 megasas_mgmt_info.count--;
7483 megasas_mgmt_info.max_index--;
7484 megasas_mgmt_info.instance[megasas_mgmt_info.max_index] = NULL;
7485
7486 instance->instancet->disable_intr(instance);
7487 megasas_destroy_irqs(instance);
7488
7489 if (instance->adapter_type != MFI_SERIES)
7490 megasas_release_fusion(instance);
7491 else
7492 megasas_release_mfi(instance);
7493 if (instance->msix_vectors)
7494 pci_free_irq_vectors(instance->pdev);
7495 fail_init_mfi:
7496 scsi_host_put(host);
7497 fail_alloc_instance:
7498 pci_disable_device(pdev);
7499
7500 return -ENODEV;
7501 }
7502
7503 /**
7504 * megasas_flush_cache - Requests FW to flush all its caches
7505 * @instance: Adapter soft state
7506 */
7507 static void megasas_flush_cache(struct megasas_instance *instance)
7508 {
7509 struct megasas_cmd *cmd;
7510 struct megasas_dcmd_frame *dcmd;
7511
7512 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR)
7513 return;
7514
7515 cmd = megasas_get_cmd(instance);
7516
7517 if (!cmd)
7518 return;
7519
7520 dcmd = &cmd->frame->dcmd;
7521
7522 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
7523
7524 dcmd->cmd = MFI_CMD_DCMD;
7525 dcmd->cmd_status = 0x0;
7526 dcmd->sge_count = 0;
7527 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_NONE);
7528 dcmd->timeout = 0;
7529 dcmd->pad_0 = 0;
7530 dcmd->data_xfer_len = 0;
7531 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_CACHE_FLUSH);
7532 dcmd->mbox.b[0] = MR_FLUSH_CTRL_CACHE | MR_FLUSH_DISK_CACHE;
7533
7534 if (megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS)
7535 != DCMD_SUCCESS) {
7536 dev_err(&instance->pdev->dev,
7537 "return from %s %d\n", __func__, __LINE__);
7538 return;
7539 }
7540
7541 megasas_return_cmd(instance, cmd);
7542 }
7543
7544 /**
7545 * megasas_shutdown_controller - Instructs FW to shutdown the controller
7546 * @instance: Adapter soft state
7547 * @opcode: Shutdown/Hibernate
7548 */
7549 static void megasas_shutdown_controller(struct megasas_instance *instance,
7550 u32 opcode)
7551 {
7552 struct megasas_cmd *cmd;
7553 struct megasas_dcmd_frame *dcmd;
7554
7555 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR)
7556 return;
7557
7558 cmd = megasas_get_cmd(instance);
7559
7560 if (!cmd)
7561 return;
7562
7563 if (instance->aen_cmd)
7564 megasas_issue_blocked_abort_cmd(instance,
7565 instance->aen_cmd, MFI_IO_TIMEOUT_SECS);
7566 if (instance->map_update_cmd)
7567 megasas_issue_blocked_abort_cmd(instance,
7568 instance->map_update_cmd, MFI_IO_TIMEOUT_SECS);
7569 if (instance->jbod_seq_cmd)
7570 megasas_issue_blocked_abort_cmd(instance,
7571 instance->jbod_seq_cmd, MFI_IO_TIMEOUT_SECS);
7572
7573 dcmd = &cmd->frame->dcmd;
7574
7575 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
7576
7577 dcmd->cmd = MFI_CMD_DCMD;
7578 dcmd->cmd_status = 0x0;
7579 dcmd->sge_count = 0;
7580 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_NONE);
7581 dcmd->timeout = 0;
7582 dcmd->pad_0 = 0;
7583 dcmd->data_xfer_len = 0;
7584 dcmd->opcode = cpu_to_le32(opcode);
7585
7586 if (megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS)
7587 != DCMD_SUCCESS) {
7588 dev_err(&instance->pdev->dev,
7589 "return from %s %d\n", __func__, __LINE__);
7590 return;
7591 }
7592
7593 megasas_return_cmd(instance, cmd);
7594 }
7595
7596 /**
7597 * megasas_suspend - driver suspend entry point
7598 * @dev: Device structure
7599 */
7600 static int __maybe_unused
7601 megasas_suspend(struct device *dev)
7602 {
7603 struct megasas_instance *instance;
7604
7605 instance = dev_get_drvdata(dev);
7606
7607 if (!instance)
7608 return 0;
7609
7610 instance->unload = 1;
7611
7612 dev_info(dev, "%s is called\n", __func__);
7613
7614 /* Shutdown SR-IOV heartbeat timer */
7615 if (instance->requestorId && !instance->skip_heartbeat_timer_del)
7616 del_timer_sync(&instance->sriov_heartbeat_timer);
7617
7618 /* Stop the FW fault detection watchdog */
7619 if (instance->adapter_type != MFI_SERIES)
7620 megasas_fusion_stop_watchdog(instance);
7621
7622 megasas_flush_cache(instance);
7623 megasas_shutdown_controller(instance, MR_DCMD_HIBERNATE_SHUTDOWN);
7624
7625 /* cancel the delayed work if this work still in queue */
7626 if (instance->ev != NULL) {
7627 struct megasas_aen_event *ev = instance->ev;
7628 cancel_delayed_work_sync(&ev->hotplug_work);
7629 instance->ev = NULL;
7630 }
7631
7632 tasklet_kill(&instance->isr_tasklet);
7633
7634 pci_set_drvdata(instance->pdev, instance);
7635 instance->instancet->disable_intr(instance);
7636
7637 megasas_destroy_irqs(instance);
7638
7639 if (instance->msix_vectors)
7640 pci_free_irq_vectors(instance->pdev);
7641
7642 return 0;
7643 }
7644
7645 /**
7646 * megasas_resume- driver resume entry point
7647 * @dev: Device structure
7648 */
7649 static int __maybe_unused
7650 megasas_resume(struct device *dev)
7651 {
7652 int rval;
7653 struct Scsi_Host *host;
7654 struct megasas_instance *instance;
7655 u32 status_reg;
7656
7657 instance = dev_get_drvdata(dev);
7658
7659 if (!instance)
7660 return 0;
7661
7662 host = instance->host;
7663
7664 dev_info(dev, "%s is called\n", __func__);
7665
7666 /*
7667 * We expect the FW state to be READY
7668 */
7669
7670 if (megasas_transition_to_ready(instance, 0)) {
7671 dev_info(&instance->pdev->dev,
7672 "Failed to transition controller to ready from %s!\n",
7673 __func__);
7674 if (instance->adapter_type != MFI_SERIES) {
7675 status_reg =
7676 instance->instancet->read_fw_status_reg(instance);
7677 if (!(status_reg & MFI_RESET_ADAPTER) ||
7678 ((megasas_adp_reset_wait_for_ready
7679 (instance, true, 0)) == FAILED))
7680 goto fail_ready_state;
7681 } else {
7682 atomic_set(&instance->fw_reset_no_pci_access, 1);
7683 instance->instancet->adp_reset
7684 (instance, instance->reg_set);
7685 atomic_set(&instance->fw_reset_no_pci_access, 0);
7686
7687 /* waiting for about 30 seconds before retry */
7688 ssleep(30);
7689
7690 if (megasas_transition_to_ready(instance, 0))
7691 goto fail_ready_state;
7692 }
7693
7694 dev_info(&instance->pdev->dev,
7695 "FW restarted successfully from %s!\n",
7696 __func__);
7697 }
7698 if (megasas_set_dma_mask(instance))
7699 goto fail_set_dma_mask;
7700
7701 /*
7702 * Initialize MFI Firmware
7703 */
7704
7705 atomic_set(&instance->fw_outstanding, 0);
7706 atomic_set(&instance->ldio_outstanding, 0);
7707
7708 /* Now re-enable MSI-X */
7709 if (instance->msix_vectors)
7710 megasas_alloc_irq_vectors(instance);
7711
7712 if (!instance->msix_vectors) {
7713 rval = pci_alloc_irq_vectors(instance->pdev, 1, 1,
7714 PCI_IRQ_LEGACY);
7715 if (rval < 0)
7716 goto fail_reenable_msix;
7717 }
7718
7719 megasas_setup_reply_map(instance);
7720
7721 if (instance->adapter_type != MFI_SERIES) {
7722 megasas_reset_reply_desc(instance);
7723 if (megasas_ioc_init_fusion(instance)) {
7724 megasas_free_cmds(instance);
7725 megasas_free_cmds_fusion(instance);
7726 goto fail_init_mfi;
7727 }
7728 if (!megasas_get_map_info(instance))
7729 megasas_sync_map_info(instance);
7730 } else {
7731 *instance->producer = 0;
7732 *instance->consumer = 0;
7733 if (megasas_issue_init_mfi(instance))
7734 goto fail_init_mfi;
7735 }
7736
7737 if (megasas_get_ctrl_info(instance) != DCMD_SUCCESS)
7738 goto fail_init_mfi;
7739
7740 tasklet_init(&instance->isr_tasklet, instance->instancet->tasklet,
7741 (unsigned long)instance);
7742
7743 if (instance->msix_vectors ?
7744 megasas_setup_irqs_msix(instance, 0) :
7745 megasas_setup_irqs_ioapic(instance))
7746 goto fail_init_mfi;
7747
7748 if (instance->adapter_type != MFI_SERIES)
7749 megasas_setup_irq_poll(instance);
7750
7751 /* Re-launch SR-IOV heartbeat timer */
7752 if (instance->requestorId) {
7753 if (!megasas_sriov_start_heartbeat(instance, 0))
7754 megasas_start_timer(instance);
7755 else {
7756 instance->skip_heartbeat_timer_del = 1;
7757 goto fail_init_mfi;
7758 }
7759 }
7760
7761 instance->instancet->enable_intr(instance);
7762 megasas_setup_jbod_map(instance);
7763 instance->unload = 0;
7764
7765 /*
7766 * Initiate AEN (Asynchronous Event Notification)
7767 */
7768 if (megasas_start_aen(instance))
7769 dev_err(&instance->pdev->dev, "Start AEN failed\n");
7770
7771 /* Re-launch FW fault watchdog */
7772 if (instance->adapter_type != MFI_SERIES)
7773 if (megasas_fusion_start_watchdog(instance) != SUCCESS)
7774 goto fail_start_watchdog;
7775
7776 return 0;
7777
7778 fail_start_watchdog:
7779 if (instance->requestorId && !instance->skip_heartbeat_timer_del)
7780 del_timer_sync(&instance->sriov_heartbeat_timer);
7781 fail_init_mfi:
7782 megasas_free_ctrl_dma_buffers(instance);
7783 megasas_free_ctrl_mem(instance);
7784 scsi_host_put(host);
7785
7786 fail_reenable_msix:
7787 fail_set_dma_mask:
7788 fail_ready_state:
7789
7790 return -ENODEV;
7791 }
7792
7793 static inline int
7794 megasas_wait_for_adapter_operational(struct megasas_instance *instance)
7795 {
7796 int wait_time = MEGASAS_RESET_WAIT_TIME * 2;
7797 int i;
7798 u8 adp_state;
7799
7800 for (i = 0; i < wait_time; i++) {
7801 adp_state = atomic_read(&instance->adprecovery);
7802 if ((adp_state == MEGASAS_HBA_OPERATIONAL) ||
7803 (adp_state == MEGASAS_HW_CRITICAL_ERROR))
7804 break;
7805
7806 if (!(i % MEGASAS_RESET_NOTICE_INTERVAL))
7807 dev_notice(&instance->pdev->dev, "waiting for controller reset to finish\n");
7808
7809 msleep(1000);
7810 }
7811
7812 if (adp_state != MEGASAS_HBA_OPERATIONAL) {
7813 dev_info(&instance->pdev->dev,
7814 "%s HBA failed to become operational, adp_state %d\n",
7815 __func__, adp_state);
7816 return 1;
7817 }
7818
7819 return 0;
7820 }
7821
7822 /**
7823 * megasas_detach_one - PCI hot"un"plug entry point
7824 * @pdev: PCI device structure
7825 */
7826 static void megasas_detach_one(struct pci_dev *pdev)
7827 {
7828 int i;
7829 struct Scsi_Host *host;
7830 struct megasas_instance *instance;
7831 struct fusion_context *fusion;
7832 u32 pd_seq_map_sz;
7833
7834 instance = pci_get_drvdata(pdev);
7835
7836 if (!instance)
7837 return;
7838
7839 host = instance->host;
7840 fusion = instance->ctrl_context;
7841
7842 /* Shutdown SR-IOV heartbeat timer */
7843 if (instance->requestorId && !instance->skip_heartbeat_timer_del)
7844 del_timer_sync(&instance->sriov_heartbeat_timer);
7845
7846 /* Stop the FW fault detection watchdog */
7847 if (instance->adapter_type != MFI_SERIES)
7848 megasas_fusion_stop_watchdog(instance);
7849
7850 if (instance->fw_crash_state != UNAVAILABLE)
7851 megasas_free_host_crash_buffer(instance);
7852 scsi_remove_host(instance->host);
7853 instance->unload = 1;
7854
7855 if (megasas_wait_for_adapter_operational(instance))
7856 goto skip_firing_dcmds;
7857
7858 megasas_flush_cache(instance);
7859 megasas_shutdown_controller(instance, MR_DCMD_CTRL_SHUTDOWN);
7860
7861 skip_firing_dcmds:
7862 /* cancel the delayed work if this work still in queue*/
7863 if (instance->ev != NULL) {
7864 struct megasas_aen_event *ev = instance->ev;
7865 cancel_delayed_work_sync(&ev->hotplug_work);
7866 instance->ev = NULL;
7867 }
7868
7869 /* cancel all wait events */
7870 wake_up_all(&instance->int_cmd_wait_q);
7871
7872 tasklet_kill(&instance->isr_tasklet);
7873
7874 /*
7875 * Take the instance off the instance array. Note that we will not
7876 * decrement the max_index. We let this array be sparse array
7877 */
7878 for (i = 0; i < megasas_mgmt_info.max_index; i++) {
7879 if (megasas_mgmt_info.instance[i] == instance) {
7880 megasas_mgmt_info.count--;
7881 megasas_mgmt_info.instance[i] = NULL;
7882
7883 break;
7884 }
7885 }
7886
7887 instance->instancet->disable_intr(instance);
7888
7889 megasas_destroy_irqs(instance);
7890
7891 if (instance->msix_vectors)
7892 pci_free_irq_vectors(instance->pdev);
7893
7894 if (instance->adapter_type >= VENTURA_SERIES) {
7895 for (i = 0; i < MAX_LOGICAL_DRIVES_EXT; ++i)
7896 kfree(fusion->stream_detect_by_ld[i]);
7897 kfree(fusion->stream_detect_by_ld);
7898 fusion->stream_detect_by_ld = NULL;
7899 }
7900
7901
7902 if (instance->adapter_type != MFI_SERIES) {
7903 megasas_release_fusion(instance);
7904 pd_seq_map_sz = sizeof(struct MR_PD_CFG_SEQ_NUM_SYNC) +
7905 (sizeof(struct MR_PD_CFG_SEQ) *
7906 (MAX_PHYSICAL_DEVICES - 1));
7907 for (i = 0; i < 2 ; i++) {
7908 if (fusion->ld_map[i])
7909 dma_free_coherent(&instance->pdev->dev,
7910 fusion->max_map_sz,
7911 fusion->ld_map[i],
7912 fusion->ld_map_phys[i]);
7913 if (fusion->ld_drv_map[i]) {
7914 if (is_vmalloc_addr(fusion->ld_drv_map[i]))
7915 vfree(fusion->ld_drv_map[i]);
7916 else
7917 free_pages((ulong)fusion->ld_drv_map[i],
7918 fusion->drv_map_pages);
7919 }
7920
7921 if (fusion->pd_seq_sync[i])
7922 dma_free_coherent(&instance->pdev->dev,
7923 pd_seq_map_sz,
7924 fusion->pd_seq_sync[i],
7925 fusion->pd_seq_phys[i]);
7926 }
7927 } else {
7928 megasas_release_mfi(instance);
7929 }
7930
7931 if (instance->vf_affiliation)
7932 dma_free_coherent(&pdev->dev, (MAX_LOGICAL_DRIVES + 1) *
7933 sizeof(struct MR_LD_VF_AFFILIATION),
7934 instance->vf_affiliation,
7935 instance->vf_affiliation_h);
7936
7937 if (instance->vf_affiliation_111)
7938 dma_free_coherent(&pdev->dev,
7939 sizeof(struct MR_LD_VF_AFFILIATION_111),
7940 instance->vf_affiliation_111,
7941 instance->vf_affiliation_111_h);
7942
7943 if (instance->hb_host_mem)
7944 dma_free_coherent(&pdev->dev, sizeof(struct MR_CTRL_HB_HOST_MEM),
7945 instance->hb_host_mem,
7946 instance->hb_host_mem_h);
7947
7948 megasas_free_ctrl_dma_buffers(instance);
7949
7950 megasas_free_ctrl_mem(instance);
7951
7952 megasas_destroy_debugfs(instance);
7953
7954 scsi_host_put(host);
7955
7956 pci_disable_device(pdev);
7957 }
7958
7959 /**
7960 * megasas_shutdown - Shutdown entry point
7961 * @pdev: PCI device structure
7962 */
7963 static void megasas_shutdown(struct pci_dev *pdev)
7964 {
7965 struct megasas_instance *instance = pci_get_drvdata(pdev);
7966
7967 if (!instance)
7968 return;
7969
7970 instance->unload = 1;
7971
7972 if (megasas_wait_for_adapter_operational(instance))
7973 goto skip_firing_dcmds;
7974
7975 megasas_flush_cache(instance);
7976 megasas_shutdown_controller(instance, MR_DCMD_CTRL_SHUTDOWN);
7977
7978 skip_firing_dcmds:
7979 instance->instancet->disable_intr(instance);
7980 megasas_destroy_irqs(instance);
7981
7982 if (instance->msix_vectors)
7983 pci_free_irq_vectors(instance->pdev);
7984 }
7985
7986 /*
7987 * megasas_mgmt_open - char node "open" entry point
7988 * @inode: char node inode
7989 * @filep: char node file
7990 */
7991 static int megasas_mgmt_open(struct inode *inode, struct file *filep)
7992 {
7993 /*
7994 * Allow only those users with admin rights
7995 */
7996 if (!capable(CAP_SYS_ADMIN))
7997 return -EACCES;
7998
7999 return 0;
8000 }
8001
8002 /*
8003 * megasas_mgmt_fasync - Async notifier registration from applications
8004 * @fd: char node file descriptor number
8005 * @filep: char node file
8006 * @mode: notifier on/off
8007 *
8008 * This function adds the calling process to a driver global queue. When an
8009 * event occurs, SIGIO will be sent to all processes in this queue.
8010 */
8011 static int megasas_mgmt_fasync(int fd, struct file *filep, int mode)
8012 {
8013 int rc;
8014
8015 mutex_lock(&megasas_async_queue_mutex);
8016
8017 rc = fasync_helper(fd, filep, mode, &megasas_async_queue);
8018
8019 mutex_unlock(&megasas_async_queue_mutex);
8020
8021 if (rc >= 0) {
8022 /* For sanity check when we get ioctl */
8023 filep->private_data = filep;
8024 return 0;
8025 }
8026
8027 printk(KERN_DEBUG "megasas: fasync_helper failed [%d]\n", rc);
8028
8029 return rc;
8030 }
8031
8032 /*
8033 * megasas_mgmt_poll - char node "poll" entry point
8034 * @filep: char node file
8035 * @wait: Events to poll for
8036 */
8037 static __poll_t megasas_mgmt_poll(struct file *file, poll_table *wait)
8038 {
8039 __poll_t mask;
8040 unsigned long flags;
8041
8042 poll_wait(file, &megasas_poll_wait, wait);
8043 spin_lock_irqsave(&poll_aen_lock, flags);
8044 if (megasas_poll_wait_aen)
8045 mask = (EPOLLIN | EPOLLRDNORM);
8046 else
8047 mask = 0;
8048 megasas_poll_wait_aen = 0;
8049 spin_unlock_irqrestore(&poll_aen_lock, flags);
8050 return mask;
8051 }
8052
8053 /*
8054 * megasas_set_crash_dump_params_ioctl:
8055 * Send CRASH_DUMP_MODE DCMD to all controllers
8056 * @cmd: MFI command frame
8057 */
8058
8059 static int megasas_set_crash_dump_params_ioctl(struct megasas_cmd *cmd)
8060 {
8061 struct megasas_instance *local_instance;
8062 int i, error = 0;
8063 int crash_support;
8064
8065 crash_support = cmd->frame->dcmd.mbox.w[0];
8066
8067 for (i = 0; i < megasas_mgmt_info.max_index; i++) {
8068 local_instance = megasas_mgmt_info.instance[i];
8069 if (local_instance && local_instance->crash_dump_drv_support) {
8070 if ((atomic_read(&local_instance->adprecovery) ==
8071 MEGASAS_HBA_OPERATIONAL) &&
8072 !megasas_set_crash_dump_params(local_instance,
8073 crash_support)) {
8074 local_instance->crash_dump_app_support =
8075 crash_support;
8076 dev_info(&local_instance->pdev->dev,
8077 "Application firmware crash "
8078 "dump mode set success\n");
8079 error = 0;
8080 } else {
8081 dev_info(&local_instance->pdev->dev,
8082 "Application firmware crash "
8083 "dump mode set failed\n");
8084 error = -1;
8085 }
8086 }
8087 }
8088 return error;
8089 }
8090
8091 /**
8092 * megasas_mgmt_fw_ioctl - Issues management ioctls to FW
8093 * @instance: Adapter soft state
8094 * @user_ioc: User's ioctl packet
8095 * @ioc: ioctl packet
8096 */
8097 static int
8098 megasas_mgmt_fw_ioctl(struct megasas_instance *instance,
8099 struct megasas_iocpacket __user * user_ioc,
8100 struct megasas_iocpacket *ioc)
8101 {
8102 struct megasas_sge64 *kern_sge64 = NULL;
8103 struct megasas_sge32 *kern_sge32 = NULL;
8104 struct megasas_cmd *cmd;
8105 void *kbuff_arr[MAX_IOCTL_SGE];
8106 dma_addr_t buf_handle = 0;
8107 int error = 0, i;
8108 void *sense = NULL;
8109 dma_addr_t sense_handle;
8110 void *sense_ptr;
8111 u32 opcode = 0;
8112 int ret = DCMD_SUCCESS;
8113
8114 memset(kbuff_arr, 0, sizeof(kbuff_arr));
8115
8116 if (ioc->sge_count > MAX_IOCTL_SGE) {
8117 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SGE count [%d] > max limit [%d]\n",
8118 ioc->sge_count, MAX_IOCTL_SGE);
8119 return -EINVAL;
8120 }
8121
8122 if ((ioc->frame.hdr.cmd >= MFI_CMD_OP_COUNT) ||
8123 ((ioc->frame.hdr.cmd == MFI_CMD_NVME) &&
8124 !instance->support_nvme_passthru) ||
8125 ((ioc->frame.hdr.cmd == MFI_CMD_TOOLBOX) &&
8126 !instance->support_pci_lane_margining)) {
8127 dev_err(&instance->pdev->dev,
8128 "Received invalid ioctl command 0x%x\n",
8129 ioc->frame.hdr.cmd);
8130 return -ENOTSUPP;
8131 }
8132
8133 cmd = megasas_get_cmd(instance);
8134 if (!cmd) {
8135 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to get a cmd packet\n");
8136 return -ENOMEM;
8137 }
8138
8139 /*
8140 * User's IOCTL packet has 2 frames (maximum). Copy those two
8141 * frames into our cmd's frames. cmd->frame's context will get
8142 * overwritten when we copy from user's frames. So set that value
8143 * alone separately
8144 */
8145 memcpy(cmd->frame, ioc->frame.raw, 2 * MEGAMFI_FRAME_SIZE);
8146 cmd->frame->hdr.context = cpu_to_le32(cmd->index);
8147 cmd->frame->hdr.pad_0 = 0;
8148
8149 cmd->frame->hdr.flags &= (~MFI_FRAME_IEEE);
8150
8151 if (instance->consistent_mask_64bit)
8152 cmd->frame->hdr.flags |= cpu_to_le16((MFI_FRAME_SGL64 |
8153 MFI_FRAME_SENSE64));
8154 else
8155 cmd->frame->hdr.flags &= cpu_to_le16(~(MFI_FRAME_SGL64 |
8156 MFI_FRAME_SENSE64));
8157
8158 if (cmd->frame->hdr.cmd == MFI_CMD_DCMD)
8159 opcode = le32_to_cpu(cmd->frame->dcmd.opcode);
8160
8161 if (opcode == MR_DCMD_CTRL_SHUTDOWN) {
8162 mutex_lock(&instance->reset_mutex);
8163 if (megasas_get_ctrl_info(instance) != DCMD_SUCCESS) {
8164 megasas_return_cmd(instance, cmd);
8165 mutex_unlock(&instance->reset_mutex);
8166 return -1;
8167 }
8168 mutex_unlock(&instance->reset_mutex);
8169 }
8170
8171 if (opcode == MR_DRIVER_SET_APP_CRASHDUMP_MODE) {
8172 error = megasas_set_crash_dump_params_ioctl(cmd);
8173 megasas_return_cmd(instance, cmd);
8174 return error;
8175 }
8176
8177 /*
8178 * The management interface between applications and the fw uses
8179 * MFI frames. E.g, RAID configuration changes, LD property changes
8180 * etc are accomplishes through different kinds of MFI frames. The
8181 * driver needs to care only about substituting user buffers with
8182 * kernel buffers in SGLs. The location of SGL is embedded in the
8183 * struct iocpacket itself.
8184 */
8185 if (instance->consistent_mask_64bit)
8186 kern_sge64 = (struct megasas_sge64 *)
8187 ((unsigned long)cmd->frame + ioc->sgl_off);
8188 else
8189 kern_sge32 = (struct megasas_sge32 *)
8190 ((unsigned long)cmd->frame + ioc->sgl_off);
8191
8192 /*
8193 * For each user buffer, create a mirror buffer and copy in
8194 */
8195 for (i = 0; i < ioc->sge_count; i++) {
8196 if (!ioc->sgl[i].iov_len)
8197 continue;
8198
8199 kbuff_arr[i] = dma_alloc_coherent(&instance->pdev->dev,
8200 ioc->sgl[i].iov_len,
8201 &buf_handle, GFP_KERNEL);
8202 if (!kbuff_arr[i]) {
8203 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to alloc "
8204 "kernel SGL buffer for IOCTL\n");
8205 error = -ENOMEM;
8206 goto out;
8207 }
8208
8209 /*
8210 * We don't change the dma_coherent_mask, so
8211 * dma_alloc_coherent only returns 32bit addresses
8212 */
8213 if (instance->consistent_mask_64bit) {
8214 kern_sge64[i].phys_addr = cpu_to_le64(buf_handle);
8215 kern_sge64[i].length = cpu_to_le32(ioc->sgl[i].iov_len);
8216 } else {
8217 kern_sge32[i].phys_addr = cpu_to_le32(buf_handle);
8218 kern_sge32[i].length = cpu_to_le32(ioc->sgl[i].iov_len);
8219 }
8220
8221 /*
8222 * We created a kernel buffer corresponding to the
8223 * user buffer. Now copy in from the user buffer
8224 */
8225 if (copy_from_user(kbuff_arr[i], ioc->sgl[i].iov_base,
8226 (u32) (ioc->sgl[i].iov_len))) {
8227 error = -EFAULT;
8228 goto out;
8229 }
8230 }
8231
8232 if (ioc->sense_len) {
8233 /* make sure the pointer is part of the frame */
8234 if (ioc->sense_off >
8235 (sizeof(union megasas_frame) - sizeof(__le64))) {
8236 error = -EINVAL;
8237 goto out;
8238 }
8239
8240 sense = dma_alloc_coherent(&instance->pdev->dev, ioc->sense_len,
8241 &sense_handle, GFP_KERNEL);
8242 if (!sense) {
8243 error = -ENOMEM;
8244 goto out;
8245 }
8246
8247 sense_ptr = (void *)cmd->frame + ioc->sense_off;
8248 if (instance->consistent_mask_64bit)
8249 put_unaligned_le64(sense_handle, sense_ptr);
8250 else
8251 put_unaligned_le32(sense_handle, sense_ptr);
8252 }
8253
8254 /*
8255 * Set the sync_cmd flag so that the ISR knows not to complete this
8256 * cmd to the SCSI mid-layer
8257 */
8258 cmd->sync_cmd = 1;
8259
8260 ret = megasas_issue_blocked_cmd(instance, cmd, 0);
8261 switch (ret) {
8262 case DCMD_INIT:
8263 case DCMD_BUSY:
8264 cmd->sync_cmd = 0;
8265 dev_err(&instance->pdev->dev,
8266 "return -EBUSY from %s %d cmd 0x%x opcode 0x%x cmd->cmd_status_drv 0x%x\n",
8267 __func__, __LINE__, cmd->frame->hdr.cmd, opcode,
8268 cmd->cmd_status_drv);
8269 error = -EBUSY;
8270 goto out;
8271 }
8272
8273 cmd->sync_cmd = 0;
8274
8275 if (instance->unload == 1) {
8276 dev_info(&instance->pdev->dev, "Driver unload is in progress "
8277 "don't submit data to application\n");
8278 goto out;
8279 }
8280 /*
8281 * copy out the kernel buffers to user buffers
8282 */
8283 for (i = 0; i < ioc->sge_count; i++) {
8284 if (copy_to_user(ioc->sgl[i].iov_base, kbuff_arr[i],
8285 ioc->sgl[i].iov_len)) {
8286 error = -EFAULT;
8287 goto out;
8288 }
8289 }
8290
8291 /*
8292 * copy out the sense
8293 */
8294 if (ioc->sense_len) {
8295 void __user *uptr;
8296 /*
8297 * sense_ptr points to the location that has the user
8298 * sense buffer address
8299 */
8300 sense_ptr = (void *)ioc->frame.raw + ioc->sense_off;
8301 if (in_compat_syscall())
8302 uptr = compat_ptr(get_unaligned((compat_uptr_t *)
8303 sense_ptr));
8304 else
8305 uptr = get_unaligned((void __user **)sense_ptr);
8306
8307 if (copy_to_user(uptr, sense, ioc->sense_len)) {
8308 dev_err(&instance->pdev->dev, "Failed to copy out to user "
8309 "sense data\n");
8310 error = -EFAULT;
8311 goto out;
8312 }
8313 }
8314
8315 /*
8316 * copy the status codes returned by the fw
8317 */
8318 if (copy_to_user(&user_ioc->frame.hdr.cmd_status,
8319 &cmd->frame->hdr.cmd_status, sizeof(u8))) {
8320 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Error copying out cmd_status\n");
8321 error = -EFAULT;
8322 }
8323
8324 out:
8325 if (sense) {
8326 dma_free_coherent(&instance->pdev->dev, ioc->sense_len,
8327 sense, sense_handle);
8328 }
8329
8330 for (i = 0; i < ioc->sge_count; i++) {
8331 if (kbuff_arr[i]) {
8332 if (instance->consistent_mask_64bit)
8333 dma_free_coherent(&instance->pdev->dev,
8334 le32_to_cpu(kern_sge64[i].length),
8335 kbuff_arr[i],
8336 le64_to_cpu(kern_sge64[i].phys_addr));
8337 else
8338 dma_free_coherent(&instance->pdev->dev,
8339 le32_to_cpu(kern_sge32[i].length),
8340 kbuff_arr[i],
8341 le32_to_cpu(kern_sge32[i].phys_addr));
8342 kbuff_arr[i] = NULL;
8343 }
8344 }
8345
8346 megasas_return_cmd(instance, cmd);
8347 return error;
8348 }
8349
8350 static struct megasas_iocpacket *
8351 megasas_compat_iocpacket_get_user(void __user *arg)
8352 {
8353 struct megasas_iocpacket *ioc;
8354 struct compat_megasas_iocpacket __user *cioc = arg;
8355 size_t size;
8356 int err = -EFAULT;
8357 int i;
8358
8359 ioc = kzalloc(sizeof(*ioc), GFP_KERNEL);
8360 if (!ioc)
8361 return ERR_PTR(-ENOMEM);
8362 size = offsetof(struct megasas_iocpacket, frame) + sizeof(ioc->frame);
8363 if (copy_from_user(ioc, arg, size))
8364 goto out;
8365
8366 for (i = 0; i < MAX_IOCTL_SGE; i++) {
8367 compat_uptr_t iov_base;
8368
8369 if (get_user(iov_base, &cioc->sgl[i].iov_base) ||
8370 get_user(ioc->sgl[i].iov_len, &cioc->sgl[i].iov_len))
8371 goto out;
8372
8373 ioc->sgl[i].iov_base = compat_ptr(iov_base);
8374 }
8375
8376 return ioc;
8377 out:
8378 kfree(ioc);
8379 return ERR_PTR(err);
8380 }
8381
8382 static int megasas_mgmt_ioctl_fw(struct file *file, unsigned long arg)
8383 {
8384 struct megasas_iocpacket __user *user_ioc =
8385 (struct megasas_iocpacket __user *)arg;
8386 struct megasas_iocpacket *ioc;
8387 struct megasas_instance *instance;
8388 int error;
8389
8390 if (in_compat_syscall())
8391 ioc = megasas_compat_iocpacket_get_user(user_ioc);
8392 else
8393 ioc = memdup_user(user_ioc, sizeof(struct megasas_iocpacket));
8394
8395 if (IS_ERR(ioc))
8396 return PTR_ERR(ioc);
8397
8398 instance = megasas_lookup_instance(ioc->host_no);
8399 if (!instance) {
8400 error = -ENODEV;
8401 goto out_kfree_ioc;
8402 }
8403
8404 /* Block ioctls in VF mode */
8405 if (instance->requestorId && !allow_vf_ioctls) {
8406 error = -ENODEV;
8407 goto out_kfree_ioc;
8408 }
8409
8410 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
8411 dev_err(&instance->pdev->dev, "Controller in crit error\n");
8412 error = -ENODEV;
8413 goto out_kfree_ioc;
8414 }
8415
8416 if (instance->unload == 1) {
8417 error = -ENODEV;
8418 goto out_kfree_ioc;
8419 }
8420
8421 if (down_interruptible(&instance->ioctl_sem)) {
8422 error = -ERESTARTSYS;
8423 goto out_kfree_ioc;
8424 }
8425
8426 if (megasas_wait_for_adapter_operational(instance)) {
8427 error = -ENODEV;
8428 goto out_up;
8429 }
8430
8431 error = megasas_mgmt_fw_ioctl(instance, user_ioc, ioc);
8432 out_up:
8433 up(&instance->ioctl_sem);
8434
8435 out_kfree_ioc:
8436 kfree(ioc);
8437 return error;
8438 }
8439
8440 static int megasas_mgmt_ioctl_aen(struct file *file, unsigned long arg)
8441 {
8442 struct megasas_instance *instance;
8443 struct megasas_aen aen;
8444 int error;
8445
8446 if (file->private_data != file) {
8447 printk(KERN_DEBUG "megasas: fasync_helper was not "
8448 "called first\n");
8449 return -EINVAL;
8450 }
8451
8452 if (copy_from_user(&aen, (void __user *)arg, sizeof(aen)))
8453 return -EFAULT;
8454
8455 instance = megasas_lookup_instance(aen.host_no);
8456
8457 if (!instance)
8458 return -ENODEV;
8459
8460 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
8461 return -ENODEV;
8462 }
8463
8464 if (instance->unload == 1) {
8465 return -ENODEV;
8466 }
8467
8468 if (megasas_wait_for_adapter_operational(instance))
8469 return -ENODEV;
8470
8471 mutex_lock(&instance->reset_mutex);
8472 error = megasas_register_aen(instance, aen.seq_num,
8473 aen.class_locale_word);
8474 mutex_unlock(&instance->reset_mutex);
8475 return error;
8476 }
8477
8478 /**
8479 * megasas_mgmt_ioctl - char node ioctl entry point
8480 * @file: char device file pointer
8481 * @cmd: ioctl command
8482 * @arg: ioctl command arguments address
8483 */
8484 static long
8485 megasas_mgmt_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
8486 {
8487 switch (cmd) {
8488 case MEGASAS_IOC_FIRMWARE:
8489 return megasas_mgmt_ioctl_fw(file, arg);
8490
8491 case MEGASAS_IOC_GET_AEN:
8492 return megasas_mgmt_ioctl_aen(file, arg);
8493 }
8494
8495 return -ENOTTY;
8496 }
8497
8498 #ifdef CONFIG_COMPAT
8499 static long
8500 megasas_mgmt_compat_ioctl(struct file *file, unsigned int cmd,
8501 unsigned long arg)
8502 {
8503 switch (cmd) {
8504 case MEGASAS_IOC_FIRMWARE32:
8505 return megasas_mgmt_ioctl_fw(file, arg);
8506 case MEGASAS_IOC_GET_AEN:
8507 return megasas_mgmt_ioctl_aen(file, arg);
8508 }
8509
8510 return -ENOTTY;
8511 }
8512 #endif
8513
8514 /*
8515 * File operations structure for management interface
8516 */
8517 static const struct file_operations megasas_mgmt_fops = {
8518 .owner = THIS_MODULE,
8519 .open = megasas_mgmt_open,
8520 .fasync = megasas_mgmt_fasync,
8521 .unlocked_ioctl = megasas_mgmt_ioctl,
8522 .poll = megasas_mgmt_poll,
8523 #ifdef CONFIG_COMPAT
8524 .compat_ioctl = megasas_mgmt_compat_ioctl,
8525 #endif
8526 .llseek = noop_llseek,
8527 };
8528
8529 static SIMPLE_DEV_PM_OPS(megasas_pm_ops, megasas_suspend, megasas_resume);
8530
8531 /*
8532 * PCI hotplug support registration structure
8533 */
8534 static struct pci_driver megasas_pci_driver = {
8535
8536 .name = "megaraid_sas",
8537 .id_table = megasas_pci_table,
8538 .probe = megasas_probe_one,
8539 .remove = megasas_detach_one,
8540 .driver.pm = &megasas_pm_ops,
8541 .shutdown = megasas_shutdown,
8542 };
8543
8544 /*
8545 * Sysfs driver attributes
8546 */
8547 static ssize_t version_show(struct device_driver *dd, char *buf)
8548 {
8549 return snprintf(buf, strlen(MEGASAS_VERSION) + 2, "%s\n",
8550 MEGASAS_VERSION);
8551 }
8552 static DRIVER_ATTR_RO(version);
8553
8554 static ssize_t release_date_show(struct device_driver *dd, char *buf)
8555 {
8556 return snprintf(buf, strlen(MEGASAS_RELDATE) + 2, "%s\n",
8557 MEGASAS_RELDATE);
8558 }
8559 static DRIVER_ATTR_RO(release_date);
8560
8561 static ssize_t support_poll_for_event_show(struct device_driver *dd, char *buf)
8562 {
8563 return sprintf(buf, "%u\n", support_poll_for_event);
8564 }
8565 static DRIVER_ATTR_RO(support_poll_for_event);
8566
8567 static ssize_t support_device_change_show(struct device_driver *dd, char *buf)
8568 {
8569 return sprintf(buf, "%u\n", support_device_change);
8570 }
8571 static DRIVER_ATTR_RO(support_device_change);
8572
8573 static ssize_t dbg_lvl_show(struct device_driver *dd, char *buf)
8574 {
8575 return sprintf(buf, "%u\n", megasas_dbg_lvl);
8576 }
8577
8578 static ssize_t dbg_lvl_store(struct device_driver *dd, const char *buf,
8579 size_t count)
8580 {
8581 int retval = count;
8582
8583 if (sscanf(buf, "%u", &megasas_dbg_lvl) < 1) {
8584 printk(KERN_ERR "megasas: could not set dbg_lvl\n");
8585 retval = -EINVAL;
8586 }
8587 return retval;
8588 }
8589 static DRIVER_ATTR_RW(dbg_lvl);
8590
8591 static ssize_t
8592 support_nvme_encapsulation_show(struct device_driver *dd, char *buf)
8593 {
8594 return sprintf(buf, "%u\n", support_nvme_encapsulation);
8595 }
8596
8597 static DRIVER_ATTR_RO(support_nvme_encapsulation);
8598
8599 static ssize_t
8600 support_pci_lane_margining_show(struct device_driver *dd, char *buf)
8601 {
8602 return sprintf(buf, "%u\n", support_pci_lane_margining);
8603 }
8604
8605 static DRIVER_ATTR_RO(support_pci_lane_margining);
8606
8607 static inline void megasas_remove_scsi_device(struct scsi_device *sdev)
8608 {
8609 sdev_printk(KERN_INFO, sdev, "SCSI device is removed\n");
8610 scsi_remove_device(sdev);
8611 scsi_device_put(sdev);
8612 }
8613
8614 /**
8615 * megasas_update_device_list - Update the PD and LD device list from FW
8616 * after an AEN event notification
8617 * @instance: Adapter soft state
8618 * @event_type: Indicates type of event (PD or LD event)
8619 *
8620 * @return: Success or failure
8621 *
8622 * Issue DCMDs to Firmware to update the internal device list in driver.
8623 * Based on the FW support, driver sends the HOST_DEVICE_LIST or combination
8624 * of PD_LIST/LD_LIST_QUERY DCMDs to get the device list.
8625 */
8626 static
8627 int megasas_update_device_list(struct megasas_instance *instance,
8628 int event_type)
8629 {
8630 int dcmd_ret = DCMD_SUCCESS;
8631
8632 if (instance->enable_fw_dev_list) {
8633 dcmd_ret = megasas_host_device_list_query(instance, false);
8634 if (dcmd_ret != DCMD_SUCCESS)
8635 goto out;
8636 } else {
8637 if (event_type & SCAN_PD_CHANNEL) {
8638 dcmd_ret = megasas_get_pd_list(instance);
8639
8640 if (dcmd_ret != DCMD_SUCCESS)
8641 goto out;
8642 }
8643
8644 if (event_type & SCAN_VD_CHANNEL) {
8645 if (!instance->requestorId ||
8646 (instance->requestorId &&
8647 megasas_get_ld_vf_affiliation(instance, 0))) {
8648 dcmd_ret = megasas_ld_list_query(instance,
8649 MR_LD_QUERY_TYPE_EXPOSED_TO_HOST);
8650 if (dcmd_ret != DCMD_SUCCESS)
8651 goto out;
8652 }
8653 }
8654 }
8655
8656 out:
8657 return dcmd_ret;
8658 }
8659
8660 /**
8661 * megasas_add_remove_devices - Add/remove devices to SCSI mid-layer
8662 * after an AEN event notification
8663 * @instance: Adapter soft state
8664 * @scan_type: Indicates type of devices (PD/LD) to add
8665 * @return void
8666 */
8667 static
8668 void megasas_add_remove_devices(struct megasas_instance *instance,
8669 int scan_type)
8670 {
8671 int i, j;
8672 u16 pd_index = 0;
8673 u16 ld_index = 0;
8674 u16 channel = 0, id = 0;
8675 struct Scsi_Host *host;
8676 struct scsi_device *sdev1;
8677 struct MR_HOST_DEVICE_LIST *targetid_list = NULL;
8678 struct MR_HOST_DEVICE_LIST_ENTRY *targetid_entry = NULL;
8679
8680 host = instance->host;
8681
8682 if (instance->enable_fw_dev_list) {
8683 targetid_list = instance->host_device_list_buf;
8684 for (i = 0; i < targetid_list->count; i++) {
8685 targetid_entry = &targetid_list->host_device_list[i];
8686 if (targetid_entry->flags.u.bits.is_sys_pd) {
8687 channel = le16_to_cpu(targetid_entry->target_id) /
8688 MEGASAS_MAX_DEV_PER_CHANNEL;
8689 id = le16_to_cpu(targetid_entry->target_id) %
8690 MEGASAS_MAX_DEV_PER_CHANNEL;
8691 } else {
8692 channel = MEGASAS_MAX_PD_CHANNELS +
8693 (le16_to_cpu(targetid_entry->target_id) /
8694 MEGASAS_MAX_DEV_PER_CHANNEL);
8695 id = le16_to_cpu(targetid_entry->target_id) %
8696 MEGASAS_MAX_DEV_PER_CHANNEL;
8697 }
8698 sdev1 = scsi_device_lookup(host, channel, id, 0);
8699 if (!sdev1) {
8700 scsi_add_device(host, channel, id, 0);
8701 } else {
8702 scsi_device_put(sdev1);
8703 }
8704 }
8705 }
8706
8707 if (scan_type & SCAN_PD_CHANNEL) {
8708 for (i = 0; i < MEGASAS_MAX_PD_CHANNELS; i++) {
8709 for (j = 0; j < MEGASAS_MAX_DEV_PER_CHANNEL; j++) {
8710 pd_index = i * MEGASAS_MAX_DEV_PER_CHANNEL + j;
8711 sdev1 = scsi_device_lookup(host, i, j, 0);
8712 if (instance->pd_list[pd_index].driveState ==
8713 MR_PD_STATE_SYSTEM) {
8714 if (!sdev1)
8715 scsi_add_device(host, i, j, 0);
8716 else
8717 scsi_device_put(sdev1);
8718 } else {
8719 if (sdev1)
8720 megasas_remove_scsi_device(sdev1);
8721 }
8722 }
8723 }
8724 }
8725
8726 if (scan_type & SCAN_VD_CHANNEL) {
8727 for (i = 0; i < MEGASAS_MAX_LD_CHANNELS; i++) {
8728 for (j = 0; j < MEGASAS_MAX_DEV_PER_CHANNEL; j++) {
8729 ld_index = (i * MEGASAS_MAX_DEV_PER_CHANNEL) + j;
8730 sdev1 = scsi_device_lookup(host,
8731 MEGASAS_MAX_PD_CHANNELS + i, j, 0);
8732 if (instance->ld_ids[ld_index] != 0xff) {
8733 if (!sdev1)
8734 scsi_add_device(host, MEGASAS_MAX_PD_CHANNELS + i, j, 0);
8735 else
8736 scsi_device_put(sdev1);
8737 } else {
8738 if (sdev1)
8739 megasas_remove_scsi_device(sdev1);
8740 }
8741 }
8742 }
8743 }
8744
8745 }
8746
8747 static void
8748 megasas_aen_polling(struct work_struct *work)
8749 {
8750 struct megasas_aen_event *ev =
8751 container_of(work, struct megasas_aen_event, hotplug_work.work);
8752 struct megasas_instance *instance = ev->instance;
8753 union megasas_evt_class_locale class_locale;
8754 int event_type = 0;
8755 u32 seq_num;
8756 int error;
8757 u8 dcmd_ret = DCMD_SUCCESS;
8758
8759 if (!instance) {
8760 printk(KERN_ERR "invalid instance!\n");
8761 kfree(ev);
8762 return;
8763 }
8764
8765 /* Don't run the event workqueue thread if OCR is running */
8766 mutex_lock(&instance->reset_mutex);
8767
8768 instance->ev = NULL;
8769 if (instance->evt_detail) {
8770 megasas_decode_evt(instance);
8771
8772 switch (le32_to_cpu(instance->evt_detail->code)) {
8773
8774 case MR_EVT_PD_INSERTED:
8775 case MR_EVT_PD_REMOVED:
8776 event_type = SCAN_PD_CHANNEL;
8777 break;
8778
8779 case MR_EVT_LD_OFFLINE:
8780 case MR_EVT_CFG_CLEARED:
8781 case MR_EVT_LD_DELETED:
8782 case MR_EVT_LD_CREATED:
8783 event_type = SCAN_VD_CHANNEL;
8784 break;
8785
8786 case MR_EVT_CTRL_HOST_BUS_SCAN_REQUESTED:
8787 case MR_EVT_FOREIGN_CFG_IMPORTED:
8788 case MR_EVT_LD_STATE_CHANGE:
8789 event_type = SCAN_PD_CHANNEL | SCAN_VD_CHANNEL;
8790 dev_info(&instance->pdev->dev, "scanning for scsi%d...\n",
8791 instance->host->host_no);
8792 break;
8793
8794 case MR_EVT_CTRL_PROP_CHANGED:
8795 dcmd_ret = megasas_get_ctrl_info(instance);
8796 if (dcmd_ret == DCMD_SUCCESS &&
8797 instance->snapdump_wait_time) {
8798 megasas_get_snapdump_properties(instance);
8799 dev_info(&instance->pdev->dev,
8800 "Snap dump wait time\t: %d\n",
8801 instance->snapdump_wait_time);
8802 }
8803 break;
8804 default:
8805 event_type = 0;
8806 break;
8807 }
8808 } else {
8809 dev_err(&instance->pdev->dev, "invalid evt_detail!\n");
8810 mutex_unlock(&instance->reset_mutex);
8811 kfree(ev);
8812 return;
8813 }
8814
8815 if (event_type)
8816 dcmd_ret = megasas_update_device_list(instance, event_type);
8817
8818 mutex_unlock(&instance->reset_mutex);
8819
8820 if (event_type && dcmd_ret == DCMD_SUCCESS)
8821 megasas_add_remove_devices(instance, event_type);
8822
8823 if (dcmd_ret == DCMD_SUCCESS)
8824 seq_num = le32_to_cpu(instance->evt_detail->seq_num) + 1;
8825 else
8826 seq_num = instance->last_seq_num;
8827
8828 /* Register AEN with FW for latest sequence number plus 1 */
8829 class_locale.members.reserved = 0;
8830 class_locale.members.locale = MR_EVT_LOCALE_ALL;
8831 class_locale.members.class = MR_EVT_CLASS_DEBUG;
8832
8833 if (instance->aen_cmd != NULL) {
8834 kfree(ev);
8835 return;
8836 }
8837
8838 mutex_lock(&instance->reset_mutex);
8839 error = megasas_register_aen(instance, seq_num,
8840 class_locale.word);
8841 if (error)
8842 dev_err(&instance->pdev->dev,
8843 "register aen failed error %x\n", error);
8844
8845 mutex_unlock(&instance->reset_mutex);
8846 kfree(ev);
8847 }
8848
8849 /**
8850 * megasas_init - Driver load entry point
8851 */
8852 static int __init megasas_init(void)
8853 {
8854 int rval;
8855
8856 /*
8857 * Booted in kdump kernel, minimize memory footprints by
8858 * disabling few features
8859 */
8860 if (reset_devices) {
8861 msix_vectors = 1;
8862 rdpq_enable = 0;
8863 dual_qdepth_disable = 1;
8864 }
8865
8866 /*
8867 * Announce driver version and other information
8868 */
8869 pr_info("megasas: %s\n", MEGASAS_VERSION);
8870
8871 spin_lock_init(&poll_aen_lock);
8872
8873 support_poll_for_event = 2;
8874 support_device_change = 1;
8875 support_nvme_encapsulation = true;
8876 support_pci_lane_margining = true;
8877
8878 memset(&megasas_mgmt_info, 0, sizeof(megasas_mgmt_info));
8879
8880 /*
8881 * Register character device node
8882 */
8883 rval = register_chrdev(0, "megaraid_sas_ioctl", &megasas_mgmt_fops);
8884
8885 if (rval < 0) {
8886 printk(KERN_DEBUG "megasas: failed to open device node\n");
8887 return rval;
8888 }
8889
8890 megasas_mgmt_majorno = rval;
8891
8892 megasas_init_debugfs();
8893
8894 /*
8895 * Register ourselves as PCI hotplug module
8896 */
8897 rval = pci_register_driver(&megasas_pci_driver);
8898
8899 if (rval) {
8900 printk(KERN_DEBUG "megasas: PCI hotplug registration failed \n");
8901 goto err_pcidrv;
8902 }
8903
8904 if ((event_log_level < MFI_EVT_CLASS_DEBUG) ||
8905 (event_log_level > MFI_EVT_CLASS_DEAD)) {
8906 pr_warn("megaraid_sas: provided event log level is out of range, setting it to default 2(CLASS_CRITICAL), permissible range is: -2 to 4\n");
8907 event_log_level = MFI_EVT_CLASS_CRITICAL;
8908 }
8909
8910 rval = driver_create_file(&megasas_pci_driver.driver,
8911 &driver_attr_version);
8912 if (rval)
8913 goto err_dcf_attr_ver;
8914
8915 rval = driver_create_file(&megasas_pci_driver.driver,
8916 &driver_attr_release_date);
8917 if (rval)
8918 goto err_dcf_rel_date;
8919
8920 rval = driver_create_file(&megasas_pci_driver.driver,
8921 &driver_attr_support_poll_for_event);
8922 if (rval)
8923 goto err_dcf_support_poll_for_event;
8924
8925 rval = driver_create_file(&megasas_pci_driver.driver,
8926 &driver_attr_dbg_lvl);
8927 if (rval)
8928 goto err_dcf_dbg_lvl;
8929 rval = driver_create_file(&megasas_pci_driver.driver,
8930 &driver_attr_support_device_change);
8931 if (rval)
8932 goto err_dcf_support_device_change;
8933
8934 rval = driver_create_file(&megasas_pci_driver.driver,
8935 &driver_attr_support_nvme_encapsulation);
8936 if (rval)
8937 goto err_dcf_support_nvme_encapsulation;
8938
8939 rval = driver_create_file(&megasas_pci_driver.driver,
8940 &driver_attr_support_pci_lane_margining);
8941 if (rval)
8942 goto err_dcf_support_pci_lane_margining;
8943
8944 return rval;
8945
8946 err_dcf_support_pci_lane_margining:
8947 driver_remove_file(&megasas_pci_driver.driver,
8948 &driver_attr_support_nvme_encapsulation);
8949
8950 err_dcf_support_nvme_encapsulation:
8951 driver_remove_file(&megasas_pci_driver.driver,
8952 &driver_attr_support_device_change);
8953
8954 err_dcf_support_device_change:
8955 driver_remove_file(&megasas_pci_driver.driver,
8956 &driver_attr_dbg_lvl);
8957 err_dcf_dbg_lvl:
8958 driver_remove_file(&megasas_pci_driver.driver,
8959 &driver_attr_support_poll_for_event);
8960 err_dcf_support_poll_for_event:
8961 driver_remove_file(&megasas_pci_driver.driver,
8962 &driver_attr_release_date);
8963 err_dcf_rel_date:
8964 driver_remove_file(&megasas_pci_driver.driver, &driver_attr_version);
8965 err_dcf_attr_ver:
8966 pci_unregister_driver(&megasas_pci_driver);
8967 err_pcidrv:
8968 megasas_exit_debugfs();
8969 unregister_chrdev(megasas_mgmt_majorno, "megaraid_sas_ioctl");
8970 return rval;
8971 }
8972
8973 /**
8974 * megasas_exit - Driver unload entry point
8975 */
8976 static void __exit megasas_exit(void)
8977 {
8978 driver_remove_file(&megasas_pci_driver.driver,
8979 &driver_attr_dbg_lvl);
8980 driver_remove_file(&megasas_pci_driver.driver,
8981 &driver_attr_support_poll_for_event);
8982 driver_remove_file(&megasas_pci_driver.driver,
8983 &driver_attr_support_device_change);
8984 driver_remove_file(&megasas_pci_driver.driver,
8985 &driver_attr_release_date);
8986 driver_remove_file(&megasas_pci_driver.driver, &driver_attr_version);
8987 driver_remove_file(&megasas_pci_driver.driver,
8988 &driver_attr_support_nvme_encapsulation);
8989 driver_remove_file(&megasas_pci_driver.driver,
8990 &driver_attr_support_pci_lane_margining);
8991
8992 pci_unregister_driver(&megasas_pci_driver);
8993 megasas_exit_debugfs();
8994 unregister_chrdev(megasas_mgmt_majorno, "megaraid_sas_ioctl");
8995 }
8996
8997 module_init(megasas_init);
8998 module_exit(megasas_exit);
Linux with added FPC-III support