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mic: vop: Fix use-after-free on remove
[linux/fpc-iii.git] / drivers / scsi / megaraid / megaraid_sas_base.c
blobfcbff83c0097d2a0edd87a5f40239f745df144c8
1 /*
2 * Linux MegaRAID driver for SAS based RAID controllers
3 *
4 * Copyright (c) 2003-2013 LSI Corporation
5 * Copyright (c) 2013-2016 Avago Technologies
6 * Copyright (c) 2016-2018 Broadcom Inc.
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * as published by the Free Software Foundation; either version 2
11 * of the License, or (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program. If not, see <http://www.gnu.org/licenses/>.
20 *
21 * Authors: Broadcom Inc.
22 * Sreenivas Bagalkote
23 * Sumant Patro
24 * Bo Yang
25 * Adam Radford
26 * Kashyap Desai <kashyap.desai@broadcom.com>
27 * Sumit Saxena <sumit.saxena@broadcom.com>
28 *
29 * Send feedback to: megaraidlinux.pdl@broadcom.com
30 */
31
32 #include <linux/kernel.h>
33 #include <linux/types.h>
34 #include <linux/pci.h>
35 #include <linux/list.h>
36 #include <linux/moduleparam.h>
37 #include <linux/module.h>
38 #include <linux/spinlock.h>
39 #include <linux/interrupt.h>
40 #include <linux/delay.h>
41 #include <linux/uio.h>
42 #include <linux/slab.h>
43 #include <linux/uaccess.h>
44 #include <asm/unaligned.h>
45 #include <linux/fs.h>
46 #include <linux/compat.h>
47 #include <linux/blkdev.h>
48 #include <linux/mutex.h>
49 #include <linux/poll.h>
50 #include <linux/vmalloc.h>
51
52 #include <scsi/scsi.h>
53 #include <scsi/scsi_cmnd.h>
54 #include <scsi/scsi_device.h>
55 #include <scsi/scsi_host.h>
56 #include <scsi/scsi_tcq.h>
57 #include "megaraid_sas_fusion.h"
58 #include "megaraid_sas.h"
59
60 /*
61 * Number of sectors per IO command
62 * Will be set in megasas_init_mfi if user does not provide
63 */
64 static unsigned int max_sectors;
65 module_param_named(max_sectors, max_sectors, int, 0);
66 MODULE_PARM_DESC(max_sectors,
67 "Maximum number of sectors per IO command");
68
69 static int msix_disable;
70 module_param(msix_disable, int, S_IRUGO);
71 MODULE_PARM_DESC(msix_disable, "Disable MSI-X interrupt handling. Default: 0");
72
73 static unsigned int msix_vectors;
74 module_param(msix_vectors, int, S_IRUGO);
75 MODULE_PARM_DESC(msix_vectors, "MSI-X max vector count. Default: Set by FW");
76
77 static int allow_vf_ioctls;
78 module_param(allow_vf_ioctls, int, S_IRUGO);
79 MODULE_PARM_DESC(allow_vf_ioctls, "Allow ioctls in SR-IOV VF mode. Default: 0");
80
81 static unsigned int throttlequeuedepth = MEGASAS_THROTTLE_QUEUE_DEPTH;
82 module_param(throttlequeuedepth, int, S_IRUGO);
83 MODULE_PARM_DESC(throttlequeuedepth,
84 "Adapter queue depth when throttled due to I/O timeout. Default: 16");
85
86 unsigned int resetwaittime = MEGASAS_RESET_WAIT_TIME;
87 module_param(resetwaittime, int, S_IRUGO);
88 MODULE_PARM_DESC(resetwaittime, "Wait time in (1-180s) after I/O timeout before resetting adapter. Default: 180s");
89
90 int smp_affinity_enable = 1;
91 module_param(smp_affinity_enable, int, S_IRUGO);
92 MODULE_PARM_DESC(smp_affinity_enable, "SMP affinity feature enable/disable Default: enable(1)");
93
94 int rdpq_enable = 1;
95 module_param(rdpq_enable, int, S_IRUGO);
96 MODULE_PARM_DESC(rdpq_enable, "Allocate reply queue in chunks for large queue depth enable/disable Default: enable(1)");
97
98 unsigned int dual_qdepth_disable;
99 module_param(dual_qdepth_disable, int, S_IRUGO);
100 MODULE_PARM_DESC(dual_qdepth_disable, "Disable dual queue depth feature. Default: 0");
101
102 unsigned int scmd_timeout = MEGASAS_DEFAULT_CMD_TIMEOUT;
103 module_param(scmd_timeout, int, S_IRUGO);
104 MODULE_PARM_DESC(scmd_timeout, "scsi command timeout (10-90s), default 90s. See megasas_reset_timer.");
105
106 MODULE_LICENSE("GPL");
107 MODULE_VERSION(MEGASAS_VERSION);
108 MODULE_AUTHOR("megaraidlinux.pdl@broadcom.com");
109 MODULE_DESCRIPTION("Broadcom MegaRAID SAS Driver");
110
111 int megasas_transition_to_ready(struct megasas_instance *instance, int ocr);
112 static int megasas_get_pd_list(struct megasas_instance *instance);
113 static int megasas_ld_list_query(struct megasas_instance *instance,
114 u8 query_type);
115 static int megasas_issue_init_mfi(struct megasas_instance *instance);
116 static int megasas_register_aen(struct megasas_instance *instance,
117 u32 seq_num, u32 class_locale_word);
118 static void megasas_get_pd_info(struct megasas_instance *instance,
119 struct scsi_device *sdev);
120
121 /*
122 * PCI ID table for all supported controllers
123 */
124 static struct pci_device_id megasas_pci_table[] = {
125
126 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1064R)},
127 /* xscale IOP */
128 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078R)},
129 /* ppc IOP */
130 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078DE)},
131 /* ppc IOP */
132 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078GEN2)},
133 /* gen2*/
134 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0079GEN2)},
135 /* gen2*/
136 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0073SKINNY)},
137 /* skinny*/
138 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0071SKINNY)},
139 /* skinny*/
140 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_VERDE_ZCR)},
141 /* xscale IOP, vega */
142 {PCI_DEVICE(PCI_VENDOR_ID_DELL, PCI_DEVICE_ID_DELL_PERC5)},
143 /* xscale IOP */
144 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FUSION)},
145 /* Fusion */
146 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_PLASMA)},
147 /* Plasma */
148 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_INVADER)},
149 /* Invader */
150 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FURY)},
151 /* Fury */
152 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_INTRUDER)},
153 /* Intruder */
154 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_INTRUDER_24)},
155 /* Intruder 24 port*/
156 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_CUTLASS_52)},
157 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_CUTLASS_53)},
158 /* VENTURA */
159 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_VENTURA)},
160 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_CRUSADER)},
161 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_HARPOON)},
162 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_TOMCAT)},
163 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_VENTURA_4PORT)},
164 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_CRUSADER_4PORT)},
165 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E1)},
166 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E2)},
167 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E5)},
168 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E6)},
169 {}
170 };
171
172 MODULE_DEVICE_TABLE(pci, megasas_pci_table);
173
174 static int megasas_mgmt_majorno;
175 struct megasas_mgmt_info megasas_mgmt_info;
176 static struct fasync_struct *megasas_async_queue;
177 static DEFINE_MUTEX(megasas_async_queue_mutex);
178
179 static int megasas_poll_wait_aen;
180 static DECLARE_WAIT_QUEUE_HEAD(megasas_poll_wait);
181 static u32 support_poll_for_event;
182 u32 megasas_dbg_lvl;
183 static u32 support_device_change;
184 static bool support_nvme_encapsulation;
185
186 /* define lock for aen poll */
187 spinlock_t poll_aen_lock;
188
189 void
190 megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd,
191 u8 alt_status);
192 static u32
193 megasas_read_fw_status_reg_gen2(struct megasas_instance *instance);
194 static int
195 megasas_adp_reset_gen2(struct megasas_instance *instance,
196 struct megasas_register_set __iomem *reg_set);
197 static irqreturn_t megasas_isr(int irq, void *devp);
198 static u32
199 megasas_init_adapter_mfi(struct megasas_instance *instance);
200 u32
201 megasas_build_and_issue_cmd(struct megasas_instance *instance,
202 struct scsi_cmnd *scmd);
203 static void megasas_complete_cmd_dpc(unsigned long instance_addr);
204 int
205 wait_and_poll(struct megasas_instance *instance, struct megasas_cmd *cmd,
206 int seconds);
207 void megasas_fusion_ocr_wq(struct work_struct *work);
208 static int megasas_get_ld_vf_affiliation(struct megasas_instance *instance,
209 int initial);
210 static int
211 megasas_set_dma_mask(struct megasas_instance *instance);
212 static int
213 megasas_alloc_ctrl_mem(struct megasas_instance *instance);
214 static inline void
215 megasas_free_ctrl_mem(struct megasas_instance *instance);
216 static inline int
217 megasas_alloc_ctrl_dma_buffers(struct megasas_instance *instance);
218 static inline void
219 megasas_free_ctrl_dma_buffers(struct megasas_instance *instance);
220 static inline void
221 megasas_init_ctrl_params(struct megasas_instance *instance);
222
223 u32 megasas_readl(struct megasas_instance *instance,
224 const volatile void __iomem *addr)
225 {
226 u32 i = 0, ret_val;
227 /*
228 * Due to a HW errata in Aero controllers, reads to certain
229 * Fusion registers could intermittently return all zeroes.
230 * This behavior is transient in nature and subsequent reads will
231 * return valid value. As a workaround in driver, retry readl for
232 * upto three times until a non-zero value is read.
233 */
234 if (instance->adapter_type == AERO_SERIES) {
235 do {
236 ret_val = readl(addr);
237 i++;
238 } while (ret_val == 0 && i < 3);
239 return ret_val;
240 } else {
241 return readl(addr);
242 }
243 }
244
245 /**
246 * megasas_set_dma_settings - Populate DMA address, length and flags for DCMDs
247 * @instance: Adapter soft state
248 * @dcmd: DCMD frame inside MFI command
249 * @dma_addr: DMA address of buffer to be passed to FW
250 * @dma_len: Length of DMA buffer to be passed to FW
251 * @return: void
252 */
253 void megasas_set_dma_settings(struct megasas_instance *instance,
254 struct megasas_dcmd_frame *dcmd,
255 dma_addr_t dma_addr, u32 dma_len)
256 {
257 if (instance->consistent_mask_64bit) {
258 dcmd->sgl.sge64[0].phys_addr = cpu_to_le64(dma_addr);
259 dcmd->sgl.sge64[0].length = cpu_to_le32(dma_len);
260 dcmd->flags = cpu_to_le16(dcmd->flags | MFI_FRAME_SGL64);
261
262 } else {
263 dcmd->sgl.sge32[0].phys_addr =
264 cpu_to_le32(lower_32_bits(dma_addr));
265 dcmd->sgl.sge32[0].length = cpu_to_le32(dma_len);
266 dcmd->flags = cpu_to_le16(dcmd->flags);
267 }
268 }
269
270 void
271 megasas_issue_dcmd(struct megasas_instance *instance, struct megasas_cmd *cmd)
272 {
273 instance->instancet->fire_cmd(instance,
274 cmd->frame_phys_addr, 0, instance->reg_set);
275 return;
276 }
277
278 /**
279 * megasas_get_cmd - Get a command from the free pool
280 * @instance: Adapter soft state
281 *
282 * Returns a free command from the pool
283 */
284 struct megasas_cmd *megasas_get_cmd(struct megasas_instance
285 *instance)
286 {
287 unsigned long flags;
288 struct megasas_cmd *cmd = NULL;
289
290 spin_lock_irqsave(&instance->mfi_pool_lock, flags);
291
292 if (!list_empty(&instance->cmd_pool)) {
293 cmd = list_entry((&instance->cmd_pool)->next,
294 struct megasas_cmd, list);
295 list_del_init(&cmd->list);
296 } else {
297 dev_err(&instance->pdev->dev, "Command pool empty!\n");
298 }
299
300 spin_unlock_irqrestore(&instance->mfi_pool_lock, flags);
301 return cmd;
302 }
303
304 /**
305 * megasas_return_cmd - Return a cmd to free command pool
306 * @instance: Adapter soft state
307 * @cmd: Command packet to be returned to free command pool
308 */
309 void
310 megasas_return_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd)
311 {
312 unsigned long flags;
313 u32 blk_tags;
314 struct megasas_cmd_fusion *cmd_fusion;
315 struct fusion_context *fusion = instance->ctrl_context;
316
317 /* This flag is used only for fusion adapter.
318 * Wait for Interrupt for Polled mode DCMD
319 */
320 if (cmd->flags & DRV_DCMD_POLLED_MODE)
321 return;
322
323 spin_lock_irqsave(&instance->mfi_pool_lock, flags);
324
325 if (fusion) {
326 blk_tags = instance->max_scsi_cmds + cmd->index;
327 cmd_fusion = fusion->cmd_list[blk_tags];
328 megasas_return_cmd_fusion(instance, cmd_fusion);
329 }
330 cmd->scmd = NULL;
331 cmd->frame_count = 0;
332 cmd->flags = 0;
333 memset(cmd->frame, 0, instance->mfi_frame_size);
334 cmd->frame->io.context = cpu_to_le32(cmd->index);
335 if (!fusion && reset_devices)
336 cmd->frame->hdr.cmd = MFI_CMD_INVALID;
337 list_add(&cmd->list, (&instance->cmd_pool)->next);
338
339 spin_unlock_irqrestore(&instance->mfi_pool_lock, flags);
340
341 }
342
343 static const char *
344 format_timestamp(uint32_t timestamp)
345 {
346 static char buffer[32];
347
348 if ((timestamp & 0xff000000) == 0xff000000)
349 snprintf(buffer, sizeof(buffer), "boot + %us", timestamp &
350 0x00ffffff);
351 else
352 snprintf(buffer, sizeof(buffer), "%us", timestamp);
353 return buffer;
354 }
355
356 static const char *
357 format_class(int8_t class)
358 {
359 static char buffer[6];
360
361 switch (class) {
362 case MFI_EVT_CLASS_DEBUG:
363 return "debug";
364 case MFI_EVT_CLASS_PROGRESS:
365 return "progress";
366 case MFI_EVT_CLASS_INFO:
367 return "info";
368 case MFI_EVT_CLASS_WARNING:
369 return "WARN";
370 case MFI_EVT_CLASS_CRITICAL:
371 return "CRIT";
372 case MFI_EVT_CLASS_FATAL:
373 return "FATAL";
374 case MFI_EVT_CLASS_DEAD:
375 return "DEAD";
376 default:
377 snprintf(buffer, sizeof(buffer), "%d", class);
378 return buffer;
379 }
380 }
381
382 /**
383 * megasas_decode_evt: Decode FW AEN event and print critical event
384 * for information.
385 * @instance: Adapter soft state
386 */
387 static void
388 megasas_decode_evt(struct megasas_instance *instance)
389 {
390 struct megasas_evt_detail *evt_detail = instance->evt_detail;
391 union megasas_evt_class_locale class_locale;
392 class_locale.word = le32_to_cpu(evt_detail->cl.word);
393
394 if (class_locale.members.class >= MFI_EVT_CLASS_CRITICAL)
395 dev_info(&instance->pdev->dev, "%d (%s/0x%04x/%s) - %s\n",
396 le32_to_cpu(evt_detail->seq_num),
397 format_timestamp(le32_to_cpu(evt_detail->time_stamp)),
398 (class_locale.members.locale),
399 format_class(class_locale.members.class),
400 evt_detail->description);
401 }
402
403 /**
404 * The following functions are defined for xscale
405 * (deviceid : 1064R, PERC5) controllers
406 */
407
408 /**
409 * megasas_enable_intr_xscale - Enables interrupts
410 * @regs: MFI register set
411 */
412 static inline void
413 megasas_enable_intr_xscale(struct megasas_instance *instance)
414 {
415 struct megasas_register_set __iomem *regs;
416
417 regs = instance->reg_set;
418 writel(0, &(regs)->outbound_intr_mask);
419
420 /* Dummy readl to force pci flush */
421 readl(&regs->outbound_intr_mask);
422 }
423
424 /**
425 * megasas_disable_intr_xscale -Disables interrupt
426 * @regs: MFI register set
427 */
428 static inline void
429 megasas_disable_intr_xscale(struct megasas_instance *instance)
430 {
431 struct megasas_register_set __iomem *regs;
432 u32 mask = 0x1f;
433
434 regs = instance->reg_set;
435 writel(mask, &regs->outbound_intr_mask);
436 /* Dummy readl to force pci flush */
437 readl(&regs->outbound_intr_mask);
438 }
439
440 /**
441 * megasas_read_fw_status_reg_xscale - returns the current FW status value
442 * @regs: MFI register set
443 */
444 static u32
445 megasas_read_fw_status_reg_xscale(struct megasas_instance *instance)
446 {
447 return readl(&instance->reg_set->outbound_msg_0);
448 }
449 /**
450 * megasas_clear_interrupt_xscale - Check & clear interrupt
451 * @regs: MFI register set
452 */
453 static int
454 megasas_clear_intr_xscale(struct megasas_instance *instance)
455 {
456 u32 status;
457 u32 mfiStatus = 0;
458 struct megasas_register_set __iomem *regs;
459 regs = instance->reg_set;
460
461 /*
462 * Check if it is our interrupt
463 */
464 status = readl(&regs->outbound_intr_status);
465
466 if (status & MFI_OB_INTR_STATUS_MASK)
467 mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE;
468 if (status & MFI_XSCALE_OMR0_CHANGE_INTERRUPT)
469 mfiStatus |= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE;
470
471 /*
472 * Clear the interrupt by writing back the same value
473 */
474 if (mfiStatus)
475 writel(status, &regs->outbound_intr_status);
476
477 /* Dummy readl to force pci flush */
478 readl(&regs->outbound_intr_status);
479
480 return mfiStatus;
481 }
482
483 /**
484 * megasas_fire_cmd_xscale - Sends command to the FW
485 * @frame_phys_addr : Physical address of cmd
486 * @frame_count : Number of frames for the command
487 * @regs : MFI register set
488 */
489 static inline void
490 megasas_fire_cmd_xscale(struct megasas_instance *instance,
491 dma_addr_t frame_phys_addr,
492 u32 frame_count,
493 struct megasas_register_set __iomem *regs)
494 {
495 unsigned long flags;
496
497 spin_lock_irqsave(&instance->hba_lock, flags);
498 writel((frame_phys_addr >> 3)|(frame_count),
499 &(regs)->inbound_queue_port);
500 spin_unlock_irqrestore(&instance->hba_lock, flags);
501 }
502
503 /**
504 * megasas_adp_reset_xscale - For controller reset
505 * @regs: MFI register set
506 */
507 static int
508 megasas_adp_reset_xscale(struct megasas_instance *instance,
509 struct megasas_register_set __iomem *regs)
510 {
511 u32 i;
512 u32 pcidata;
513
514 writel(MFI_ADP_RESET, &regs->inbound_doorbell);
515
516 for (i = 0; i < 3; i++)
517 msleep(1000); /* sleep for 3 secs */
518 pcidata = 0;
519 pci_read_config_dword(instance->pdev, MFI_1068_PCSR_OFFSET, &pcidata);
520 dev_notice(&instance->pdev->dev, "pcidata = %x\n", pcidata);
521 if (pcidata & 0x2) {
522 dev_notice(&instance->pdev->dev, "mfi 1068 offset read=%x\n", pcidata);
523 pcidata &= ~0x2;
524 pci_write_config_dword(instance->pdev,
525 MFI_1068_PCSR_OFFSET, pcidata);
526
527 for (i = 0; i < 2; i++)
528 msleep(1000); /* need to wait 2 secs again */
529
530 pcidata = 0;
531 pci_read_config_dword(instance->pdev,
532 MFI_1068_FW_HANDSHAKE_OFFSET, &pcidata);
533 dev_notice(&instance->pdev->dev, "1068 offset handshake read=%x\n", pcidata);
534 if ((pcidata & 0xffff0000) == MFI_1068_FW_READY) {
535 dev_notice(&instance->pdev->dev, "1068 offset pcidt=%x\n", pcidata);
536 pcidata = 0;
537 pci_write_config_dword(instance->pdev,
538 MFI_1068_FW_HANDSHAKE_OFFSET, pcidata);
539 }
540 }
541 return 0;
542 }
543
544 /**
545 * megasas_check_reset_xscale - For controller reset check
546 * @regs: MFI register set
547 */
548 static int
549 megasas_check_reset_xscale(struct megasas_instance *instance,
550 struct megasas_register_set __iomem *regs)
551 {
552 if ((atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) &&
553 (le32_to_cpu(*instance->consumer) ==
554 MEGASAS_ADPRESET_INPROG_SIGN))
555 return 1;
556 return 0;
557 }
558
559 static struct megasas_instance_template megasas_instance_template_xscale = {
560
561 .fire_cmd = megasas_fire_cmd_xscale,
562 .enable_intr = megasas_enable_intr_xscale,
563 .disable_intr = megasas_disable_intr_xscale,
564 .clear_intr = megasas_clear_intr_xscale,
565 .read_fw_status_reg = megasas_read_fw_status_reg_xscale,
566 .adp_reset = megasas_adp_reset_xscale,
567 .check_reset = megasas_check_reset_xscale,
568 .service_isr = megasas_isr,
569 .tasklet = megasas_complete_cmd_dpc,
570 .init_adapter = megasas_init_adapter_mfi,
571 .build_and_issue_cmd = megasas_build_and_issue_cmd,
572 .issue_dcmd = megasas_issue_dcmd,
573 };
574
575 /**
576 * This is the end of set of functions & definitions specific
577 * to xscale (deviceid : 1064R, PERC5) controllers
578 */
579
580 /**
581 * The following functions are defined for ppc (deviceid : 0x60)
582 * controllers
583 */
584
585 /**
586 * megasas_enable_intr_ppc - Enables interrupts
587 * @regs: MFI register set
588 */
589 static inline void
590 megasas_enable_intr_ppc(struct megasas_instance *instance)
591 {
592 struct megasas_register_set __iomem *regs;
593
594 regs = instance->reg_set;
595 writel(0xFFFFFFFF, &(regs)->outbound_doorbell_clear);
596
597 writel(~0x80000000, &(regs)->outbound_intr_mask);
598
599 /* Dummy readl to force pci flush */
600 readl(&regs->outbound_intr_mask);
601 }
602
603 /**
604 * megasas_disable_intr_ppc - Disable interrupt
605 * @regs: MFI register set
606 */
607 static inline void
608 megasas_disable_intr_ppc(struct megasas_instance *instance)
609 {
610 struct megasas_register_set __iomem *regs;
611 u32 mask = 0xFFFFFFFF;
612
613 regs = instance->reg_set;
614 writel(mask, &regs->outbound_intr_mask);
615 /* Dummy readl to force pci flush */
616 readl(&regs->outbound_intr_mask);
617 }
618
619 /**
620 * megasas_read_fw_status_reg_ppc - returns the current FW status value
621 * @regs: MFI register set
622 */
623 static u32
624 megasas_read_fw_status_reg_ppc(struct megasas_instance *instance)
625 {
626 return readl(&instance->reg_set->outbound_scratch_pad_0);
627 }
628
629 /**
630 * megasas_clear_interrupt_ppc - Check & clear interrupt
631 * @regs: MFI register set
632 */
633 static int
634 megasas_clear_intr_ppc(struct megasas_instance *instance)
635 {
636 u32 status, mfiStatus = 0;
637 struct megasas_register_set __iomem *regs;
638 regs = instance->reg_set;
639
640 /*
641 * Check if it is our interrupt
642 */
643 status = readl(&regs->outbound_intr_status);
644
645 if (status & MFI_REPLY_1078_MESSAGE_INTERRUPT)
646 mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE;
647
648 if (status & MFI_G2_OUTBOUND_DOORBELL_CHANGE_INTERRUPT)
649 mfiStatus |= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE;
650
651 /*
652 * Clear the interrupt by writing back the same value
653 */
654 writel(status, &regs->outbound_doorbell_clear);
655
656 /* Dummy readl to force pci flush */
657 readl(&regs->outbound_doorbell_clear);
658
659 return mfiStatus;
660 }
661
662 /**
663 * megasas_fire_cmd_ppc - Sends command to the FW
664 * @frame_phys_addr : Physical address of cmd
665 * @frame_count : Number of frames for the command
666 * @regs : MFI register set
667 */
668 static inline void
669 megasas_fire_cmd_ppc(struct megasas_instance *instance,
670 dma_addr_t frame_phys_addr,
671 u32 frame_count,
672 struct megasas_register_set __iomem *regs)
673 {
674 unsigned long flags;
675
676 spin_lock_irqsave(&instance->hba_lock, flags);
677 writel((frame_phys_addr | (frame_count<<1))|1,
678 &(regs)->inbound_queue_port);
679 spin_unlock_irqrestore(&instance->hba_lock, flags);
680 }
681
682 /**
683 * megasas_check_reset_ppc - For controller reset check
684 * @regs: MFI register set
685 */
686 static int
687 megasas_check_reset_ppc(struct megasas_instance *instance,
688 struct megasas_register_set __iomem *regs)
689 {
690 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL)
691 return 1;
692
693 return 0;
694 }
695
696 static struct megasas_instance_template megasas_instance_template_ppc = {
697
698 .fire_cmd = megasas_fire_cmd_ppc,
699 .enable_intr = megasas_enable_intr_ppc,
700 .disable_intr = megasas_disable_intr_ppc,
701 .clear_intr = megasas_clear_intr_ppc,
702 .read_fw_status_reg = megasas_read_fw_status_reg_ppc,
703 .adp_reset = megasas_adp_reset_xscale,
704 .check_reset = megasas_check_reset_ppc,
705 .service_isr = megasas_isr,
706 .tasklet = megasas_complete_cmd_dpc,
707 .init_adapter = megasas_init_adapter_mfi,
708 .build_and_issue_cmd = megasas_build_and_issue_cmd,
709 .issue_dcmd = megasas_issue_dcmd,
710 };
711
712 /**
713 * megasas_enable_intr_skinny - Enables interrupts
714 * @regs: MFI register set
715 */
716 static inline void
717 megasas_enable_intr_skinny(struct megasas_instance *instance)
718 {
719 struct megasas_register_set __iomem *regs;
720
721 regs = instance->reg_set;
722 writel(0xFFFFFFFF, &(regs)->outbound_intr_mask);
723
724 writel(~MFI_SKINNY_ENABLE_INTERRUPT_MASK, &(regs)->outbound_intr_mask);
725
726 /* Dummy readl to force pci flush */
727 readl(&regs->outbound_intr_mask);
728 }
729
730 /**
731 * megasas_disable_intr_skinny - Disables interrupt
732 * @regs: MFI register set
733 */
734 static inline void
735 megasas_disable_intr_skinny(struct megasas_instance *instance)
736 {
737 struct megasas_register_set __iomem *regs;
738 u32 mask = 0xFFFFFFFF;
739
740 regs = instance->reg_set;
741 writel(mask, &regs->outbound_intr_mask);
742 /* Dummy readl to force pci flush */
743 readl(&regs->outbound_intr_mask);
744 }
745
746 /**
747 * megasas_read_fw_status_reg_skinny - returns the current FW status value
748 * @regs: MFI register set
749 */
750 static u32
751 megasas_read_fw_status_reg_skinny(struct megasas_instance *instance)
752 {
753 return readl(&instance->reg_set->outbound_scratch_pad_0);
754 }
755
756 /**
757 * megasas_clear_interrupt_skinny - Check & clear interrupt
758 * @regs: MFI register set
759 */
760 static int
761 megasas_clear_intr_skinny(struct megasas_instance *instance)
762 {
763 u32 status;
764 u32 mfiStatus = 0;
765 struct megasas_register_set __iomem *regs;
766 regs = instance->reg_set;
767
768 /*
769 * Check if it is our interrupt
770 */
771 status = readl(&regs->outbound_intr_status);
772
773 if (!(status & MFI_SKINNY_ENABLE_INTERRUPT_MASK)) {
774 return 0;
775 }
776
777 /*
778 * Check if it is our interrupt
779 */
780 if ((megasas_read_fw_status_reg_skinny(instance) & MFI_STATE_MASK) ==
781 MFI_STATE_FAULT) {
782 mfiStatus = MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE;
783 } else
784 mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE;
785
786 /*
787 * Clear the interrupt by writing back the same value
788 */
789 writel(status, &regs->outbound_intr_status);
790
791 /*
792 * dummy read to flush PCI
793 */
794 readl(&regs->outbound_intr_status);
795
796 return mfiStatus;
797 }
798
799 /**
800 * megasas_fire_cmd_skinny - Sends command to the FW
801 * @frame_phys_addr : Physical address of cmd
802 * @frame_count : Number of frames for the command
803 * @regs : MFI register set
804 */
805 static inline void
806 megasas_fire_cmd_skinny(struct megasas_instance *instance,
807 dma_addr_t frame_phys_addr,
808 u32 frame_count,
809 struct megasas_register_set __iomem *regs)
810 {
811 unsigned long flags;
812
813 spin_lock_irqsave(&instance->hba_lock, flags);
814 writel(upper_32_bits(frame_phys_addr),
815 &(regs)->inbound_high_queue_port);
816 writel((lower_32_bits(frame_phys_addr) | (frame_count<<1))|1,
817 &(regs)->inbound_low_queue_port);
818 mmiowb();
819 spin_unlock_irqrestore(&instance->hba_lock, flags);
820 }
821
822 /**
823 * megasas_check_reset_skinny - For controller reset check
824 * @regs: MFI register set
825 */
826 static int
827 megasas_check_reset_skinny(struct megasas_instance *instance,
828 struct megasas_register_set __iomem *regs)
829 {
830 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL)
831 return 1;
832
833 return 0;
834 }
835
836 static struct megasas_instance_template megasas_instance_template_skinny = {
837
838 .fire_cmd = megasas_fire_cmd_skinny,
839 .enable_intr = megasas_enable_intr_skinny,
840 .disable_intr = megasas_disable_intr_skinny,
841 .clear_intr = megasas_clear_intr_skinny,
842 .read_fw_status_reg = megasas_read_fw_status_reg_skinny,
843 .adp_reset = megasas_adp_reset_gen2,
844 .check_reset = megasas_check_reset_skinny,
845 .service_isr = megasas_isr,
846 .tasklet = megasas_complete_cmd_dpc,
847 .init_adapter = megasas_init_adapter_mfi,
848 .build_and_issue_cmd = megasas_build_and_issue_cmd,
849 .issue_dcmd = megasas_issue_dcmd,
850 };
851
852
853 /**
854 * The following functions are defined for gen2 (deviceid : 0x78 0x79)
855 * controllers
856 */
857
858 /**
859 * megasas_enable_intr_gen2 - Enables interrupts
860 * @regs: MFI register set
861 */
862 static inline void
863 megasas_enable_intr_gen2(struct megasas_instance *instance)
864 {
865 struct megasas_register_set __iomem *regs;
866
867 regs = instance->reg_set;
868 writel(0xFFFFFFFF, &(regs)->outbound_doorbell_clear);
869
870 /* write ~0x00000005 (4 & 1) to the intr mask*/
871 writel(~MFI_GEN2_ENABLE_INTERRUPT_MASK, &(regs)->outbound_intr_mask);
872
873 /* Dummy readl to force pci flush */
874 readl(&regs->outbound_intr_mask);
875 }
876
877 /**
878 * megasas_disable_intr_gen2 - Disables interrupt
879 * @regs: MFI register set
880 */
881 static inline void
882 megasas_disable_intr_gen2(struct megasas_instance *instance)
883 {
884 struct megasas_register_set __iomem *regs;
885 u32 mask = 0xFFFFFFFF;
886
887 regs = instance->reg_set;
888 writel(mask, &regs->outbound_intr_mask);
889 /* Dummy readl to force pci flush */
890 readl(&regs->outbound_intr_mask);
891 }
892
893 /**
894 * megasas_read_fw_status_reg_gen2 - returns the current FW status value
895 * @regs: MFI register set
896 */
897 static u32
898 megasas_read_fw_status_reg_gen2(struct megasas_instance *instance)
899 {
900 return readl(&instance->reg_set->outbound_scratch_pad_0);
901 }
902
903 /**
904 * megasas_clear_interrupt_gen2 - Check & clear interrupt
905 * @regs: MFI register set
906 */
907 static int
908 megasas_clear_intr_gen2(struct megasas_instance *instance)
909 {
910 u32 status;
911 u32 mfiStatus = 0;
912 struct megasas_register_set __iomem *regs;
913 regs = instance->reg_set;
914
915 /*
916 * Check if it is our interrupt
917 */
918 status = readl(&regs->outbound_intr_status);
919
920 if (status & MFI_INTR_FLAG_REPLY_MESSAGE) {
921 mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE;
922 }
923 if (status & MFI_G2_OUTBOUND_DOORBELL_CHANGE_INTERRUPT) {
924 mfiStatus |= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE;
925 }
926
927 /*
928 * Clear the interrupt by writing back the same value
929 */
930 if (mfiStatus)
931 writel(status, &regs->outbound_doorbell_clear);
932
933 /* Dummy readl to force pci flush */
934 readl(&regs->outbound_intr_status);
935
936 return mfiStatus;
937 }
938 /**
939 * megasas_fire_cmd_gen2 - Sends command to the FW
940 * @frame_phys_addr : Physical address of cmd
941 * @frame_count : Number of frames for the command
942 * @regs : MFI register set
943 */
944 static inline void
945 megasas_fire_cmd_gen2(struct megasas_instance *instance,
946 dma_addr_t frame_phys_addr,
947 u32 frame_count,
948 struct megasas_register_set __iomem *regs)
949 {
950 unsigned long flags;
951
952 spin_lock_irqsave(&instance->hba_lock, flags);
953 writel((frame_phys_addr | (frame_count<<1))|1,
954 &(regs)->inbound_queue_port);
955 spin_unlock_irqrestore(&instance->hba_lock, flags);
956 }
957
958 /**
959 * megasas_adp_reset_gen2 - For controller reset
960 * @regs: MFI register set
961 */
962 static int
963 megasas_adp_reset_gen2(struct megasas_instance *instance,
964 struct megasas_register_set __iomem *reg_set)
965 {
966 u32 retry = 0 ;
967 u32 HostDiag;
968 u32 __iomem *seq_offset = &reg_set->seq_offset;
969 u32 __iomem *hostdiag_offset = &reg_set->host_diag;
970
971 if (instance->instancet == &megasas_instance_template_skinny) {
972 seq_offset = &reg_set->fusion_seq_offset;
973 hostdiag_offset = &reg_set->fusion_host_diag;
974 }
975
976 writel(0, seq_offset);
977 writel(4, seq_offset);
978 writel(0xb, seq_offset);
979 writel(2, seq_offset);
980 writel(7, seq_offset);
981 writel(0xd, seq_offset);
982
983 msleep(1000);
984
985 HostDiag = (u32)readl(hostdiag_offset);
986
987 while (!(HostDiag & DIAG_WRITE_ENABLE)) {
988 msleep(100);
989 HostDiag = (u32)readl(hostdiag_offset);
990 dev_notice(&instance->pdev->dev, "RESETGEN2: retry=%x, hostdiag=%x\n",
991 retry, HostDiag);
992
993 if (retry++ >= 100)
994 return 1;
995
996 }
997
998 dev_notice(&instance->pdev->dev, "ADP_RESET_GEN2: HostDiag=%x\n", HostDiag);
999
1000 writel((HostDiag | DIAG_RESET_ADAPTER), hostdiag_offset);
1001
1002 ssleep(10);
1003
1004 HostDiag = (u32)readl(hostdiag_offset);
1005 while (HostDiag & DIAG_RESET_ADAPTER) {
1006 msleep(100);
1007 HostDiag = (u32)readl(hostdiag_offset);
1008 dev_notice(&instance->pdev->dev, "RESET_GEN2: retry=%x, hostdiag=%x\n",
1009 retry, HostDiag);
1010
1011 if (retry++ >= 1000)
1012 return 1;
1013
1014 }
1015 return 0;
1016 }
1017
1018 /**
1019 * megasas_check_reset_gen2 - For controller reset check
1020 * @regs: MFI register set
1021 */
1022 static int
1023 megasas_check_reset_gen2(struct megasas_instance *instance,
1024 struct megasas_register_set __iomem *regs)
1025 {
1026 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL)
1027 return 1;
1028
1029 return 0;
1030 }
1031
1032 static struct megasas_instance_template megasas_instance_template_gen2 = {
1033
1034 .fire_cmd = megasas_fire_cmd_gen2,
1035 .enable_intr = megasas_enable_intr_gen2,
1036 .disable_intr = megasas_disable_intr_gen2,
1037 .clear_intr = megasas_clear_intr_gen2,
1038 .read_fw_status_reg = megasas_read_fw_status_reg_gen2,
1039 .adp_reset = megasas_adp_reset_gen2,
1040 .check_reset = megasas_check_reset_gen2,
1041 .service_isr = megasas_isr,
1042 .tasklet = megasas_complete_cmd_dpc,
1043 .init_adapter = megasas_init_adapter_mfi,
1044 .build_and_issue_cmd = megasas_build_and_issue_cmd,
1045 .issue_dcmd = megasas_issue_dcmd,
1046 };
1047
1048 /**
1049 * This is the end of set of functions & definitions
1050 * specific to gen2 (deviceid : 0x78, 0x79) controllers
1051 */
1052
1053 /*
1054 * Template added for TB (Fusion)
1055 */
1056 extern struct megasas_instance_template megasas_instance_template_fusion;
1057
1058 /**
1059 * megasas_issue_polled - Issues a polling command
1060 * @instance: Adapter soft state
1061 * @cmd: Command packet to be issued
1062 *
1063 * For polling, MFI requires the cmd_status to be set to MFI_STAT_INVALID_STATUS before posting.
1064 */
1065 int
1066 megasas_issue_polled(struct megasas_instance *instance, struct megasas_cmd *cmd)
1067 {
1068 struct megasas_header *frame_hdr = &cmd->frame->hdr;
1069
1070 frame_hdr->cmd_status = MFI_STAT_INVALID_STATUS;
1071 frame_hdr->flags |= cpu_to_le16(MFI_FRAME_DONT_POST_IN_REPLY_QUEUE);
1072
1073 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
1074 dev_err(&instance->pdev->dev, "Failed from %s %d\n",
1075 __func__, __LINE__);
1076 return DCMD_NOT_FIRED;
1077 }
1078
1079 instance->instancet->issue_dcmd(instance, cmd);
1080
1081 return wait_and_poll(instance, cmd, instance->requestorId ?
1082 MEGASAS_ROUTINE_WAIT_TIME_VF : MFI_IO_TIMEOUT_SECS);
1083 }
1084
1085 /**
1086 * megasas_issue_blocked_cmd - Synchronous wrapper around regular FW cmds
1087 * @instance: Adapter soft state
1088 * @cmd: Command to be issued
1089 * @timeout: Timeout in seconds
1090 *
1091 * This function waits on an event for the command to be returned from ISR.
1092 * Max wait time is MEGASAS_INTERNAL_CMD_WAIT_TIME secs
1093 * Used to issue ioctl commands.
1094 */
1095 int
1096 megasas_issue_blocked_cmd(struct megasas_instance *instance,
1097 struct megasas_cmd *cmd, int timeout)
1098 {
1099 int ret = 0;
1100 cmd->cmd_status_drv = MFI_STAT_INVALID_STATUS;
1101
1102 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
1103 dev_err(&instance->pdev->dev, "Failed from %s %d\n",
1104 __func__, __LINE__);
1105 return DCMD_NOT_FIRED;
1106 }
1107
1108 instance->instancet->issue_dcmd(instance, cmd);
1109
1110 if (timeout) {
1111 ret = wait_event_timeout(instance->int_cmd_wait_q,
1112 cmd->cmd_status_drv != MFI_STAT_INVALID_STATUS, timeout * HZ);
1113 if (!ret) {
1114 dev_err(&instance->pdev->dev, "Failed from %s %d DCMD Timed out\n",
1115 __func__, __LINE__);
1116 return DCMD_TIMEOUT;
1117 }
1118 } else
1119 wait_event(instance->int_cmd_wait_q,
1120 cmd->cmd_status_drv != MFI_STAT_INVALID_STATUS);
1121
1122 return (cmd->cmd_status_drv == MFI_STAT_OK) ?
1123 DCMD_SUCCESS : DCMD_FAILED;
1124 }
1125
1126 /**
1127 * megasas_issue_blocked_abort_cmd - Aborts previously issued cmd
1128 * @instance: Adapter soft state
1129 * @cmd_to_abort: Previously issued cmd to be aborted
1130 * @timeout: Timeout in seconds
1131 *
1132 * MFI firmware can abort previously issued AEN comamnd (automatic event
1133 * notification). The megasas_issue_blocked_abort_cmd() issues such abort
1134 * cmd and waits for return status.
1135 * Max wait time is MEGASAS_INTERNAL_CMD_WAIT_TIME secs
1136 */
1137 static int
1138 megasas_issue_blocked_abort_cmd(struct megasas_instance *instance,
1139 struct megasas_cmd *cmd_to_abort, int timeout)
1140 {
1141 struct megasas_cmd *cmd;
1142 struct megasas_abort_frame *abort_fr;
1143 int ret = 0;
1144
1145 cmd = megasas_get_cmd(instance);
1146
1147 if (!cmd)
1148 return -1;
1149
1150 abort_fr = &cmd->frame->abort;
1151
1152 /*
1153 * Prepare and issue the abort frame
1154 */
1155 abort_fr->cmd = MFI_CMD_ABORT;
1156 abort_fr->cmd_status = MFI_STAT_INVALID_STATUS;
1157 abort_fr->flags = cpu_to_le16(0);
1158 abort_fr->abort_context = cpu_to_le32(cmd_to_abort->index);
1159 abort_fr->abort_mfi_phys_addr_lo =
1160 cpu_to_le32(lower_32_bits(cmd_to_abort->frame_phys_addr));
1161 abort_fr->abort_mfi_phys_addr_hi =
1162 cpu_to_le32(upper_32_bits(cmd_to_abort->frame_phys_addr));
1163
1164 cmd->sync_cmd = 1;
1165 cmd->cmd_status_drv = MFI_STAT_INVALID_STATUS;
1166
1167 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
1168 dev_err(&instance->pdev->dev, "Failed from %s %d\n",
1169 __func__, __LINE__);
1170 return DCMD_NOT_FIRED;
1171 }
1172
1173 instance->instancet->issue_dcmd(instance, cmd);
1174
1175 if (timeout) {
1176 ret = wait_event_timeout(instance->abort_cmd_wait_q,
1177 cmd->cmd_status_drv != MFI_STAT_INVALID_STATUS, timeout * HZ);
1178 if (!ret) {
1179 dev_err(&instance->pdev->dev, "Failed from %s %d Abort Timed out\n",
1180 __func__, __LINE__);
1181 return DCMD_TIMEOUT;
1182 }
1183 } else
1184 wait_event(instance->abort_cmd_wait_q,
1185 cmd->cmd_status_drv != MFI_STAT_INVALID_STATUS);
1186
1187 cmd->sync_cmd = 0;
1188
1189 megasas_return_cmd(instance, cmd);
1190 return (cmd->cmd_status_drv == MFI_STAT_OK) ?
1191 DCMD_SUCCESS : DCMD_FAILED;
1192 }
1193
1194 /**
1195 * megasas_make_sgl32 - Prepares 32-bit SGL
1196 * @instance: Adapter soft state
1197 * @scp: SCSI command from the mid-layer
1198 * @mfi_sgl: SGL to be filled in
1199 *
1200 * If successful, this function returns the number of SG elements. Otherwise,
1201 * it returnes -1.
1202 */
1203 static int
1204 megasas_make_sgl32(struct megasas_instance *instance, struct scsi_cmnd *scp,
1205 union megasas_sgl *mfi_sgl)
1206 {
1207 int i;
1208 int sge_count;
1209 struct scatterlist *os_sgl;
1210
1211 sge_count = scsi_dma_map(scp);
1212 BUG_ON(sge_count < 0);
1213
1214 if (sge_count) {
1215 scsi_for_each_sg(scp, os_sgl, sge_count, i) {
1216 mfi_sgl->sge32[i].length = cpu_to_le32(sg_dma_len(os_sgl));
1217 mfi_sgl->sge32[i].phys_addr = cpu_to_le32(sg_dma_address(os_sgl));
1218 }
1219 }
1220 return sge_count;
1221 }
1222
1223 /**
1224 * megasas_make_sgl64 - Prepares 64-bit SGL
1225 * @instance: Adapter soft state
1226 * @scp: SCSI command from the mid-layer
1227 * @mfi_sgl: SGL to be filled in
1228 *
1229 * If successful, this function returns the number of SG elements. Otherwise,
1230 * it returnes -1.
1231 */
1232 static int
1233 megasas_make_sgl64(struct megasas_instance *instance, struct scsi_cmnd *scp,
1234 union megasas_sgl *mfi_sgl)
1235 {
1236 int i;
1237 int sge_count;
1238 struct scatterlist *os_sgl;
1239
1240 sge_count = scsi_dma_map(scp);
1241 BUG_ON(sge_count < 0);
1242
1243 if (sge_count) {
1244 scsi_for_each_sg(scp, os_sgl, sge_count, i) {
1245 mfi_sgl->sge64[i].length = cpu_to_le32(sg_dma_len(os_sgl));
1246 mfi_sgl->sge64[i].phys_addr = cpu_to_le64(sg_dma_address(os_sgl));
1247 }
1248 }
1249 return sge_count;
1250 }
1251
1252 /**
1253 * megasas_make_sgl_skinny - Prepares IEEE SGL
1254 * @instance: Adapter soft state
1255 * @scp: SCSI command from the mid-layer
1256 * @mfi_sgl: SGL to be filled in
1257 *
1258 * If successful, this function returns the number of SG elements. Otherwise,
1259 * it returnes -1.
1260 */
1261 static int
1262 megasas_make_sgl_skinny(struct megasas_instance *instance,
1263 struct scsi_cmnd *scp, union megasas_sgl *mfi_sgl)
1264 {
1265 int i;
1266 int sge_count;
1267 struct scatterlist *os_sgl;
1268
1269 sge_count = scsi_dma_map(scp);
1270
1271 if (sge_count) {
1272 scsi_for_each_sg(scp, os_sgl, sge_count, i) {
1273 mfi_sgl->sge_skinny[i].length =
1274 cpu_to_le32(sg_dma_len(os_sgl));
1275 mfi_sgl->sge_skinny[i].phys_addr =
1276 cpu_to_le64(sg_dma_address(os_sgl));
1277 mfi_sgl->sge_skinny[i].flag = cpu_to_le32(0);
1278 }
1279 }
1280 return sge_count;
1281 }
1282
1283 /**
1284 * megasas_get_frame_count - Computes the number of frames
1285 * @frame_type : type of frame- io or pthru frame
1286 * @sge_count : number of sg elements
1287 *
1288 * Returns the number of frames required for numnber of sge's (sge_count)
1289 */
1290
1291 static u32 megasas_get_frame_count(struct megasas_instance *instance,
1292 u8 sge_count, u8 frame_type)
1293 {
1294 int num_cnt;
1295 int sge_bytes;
1296 u32 sge_sz;
1297 u32 frame_count = 0;
1298
1299 sge_sz = (IS_DMA64) ? sizeof(struct megasas_sge64) :
1300 sizeof(struct megasas_sge32);
1301
1302 if (instance->flag_ieee) {
1303 sge_sz = sizeof(struct megasas_sge_skinny);
1304 }
1305
1306 /*
1307 * Main frame can contain 2 SGEs for 64-bit SGLs and
1308 * 3 SGEs for 32-bit SGLs for ldio &
1309 * 1 SGEs for 64-bit SGLs and
1310 * 2 SGEs for 32-bit SGLs for pthru frame
1311 */
1312 if (unlikely(frame_type == PTHRU_FRAME)) {
1313 if (instance->flag_ieee == 1) {
1314 num_cnt = sge_count - 1;
1315 } else if (IS_DMA64)
1316 num_cnt = sge_count - 1;
1317 else
1318 num_cnt = sge_count - 2;
1319 } else {
1320 if (instance->flag_ieee == 1) {
1321 num_cnt = sge_count - 1;
1322 } else if (IS_DMA64)
1323 num_cnt = sge_count - 2;
1324 else
1325 num_cnt = sge_count - 3;
1326 }
1327
1328 if (num_cnt > 0) {
1329 sge_bytes = sge_sz * num_cnt;
1330
1331 frame_count = (sge_bytes / MEGAMFI_FRAME_SIZE) +
1332 ((sge_bytes % MEGAMFI_FRAME_SIZE) ? 1 : 0) ;
1333 }
1334 /* Main frame */
1335 frame_count += 1;
1336
1337 if (frame_count > 7)
1338 frame_count = 8;
1339 return frame_count;
1340 }
1341
1342 /**
1343 * megasas_build_dcdb - Prepares a direct cdb (DCDB) command
1344 * @instance: Adapter soft state
1345 * @scp: SCSI command
1346 * @cmd: Command to be prepared in
1347 *
1348 * This function prepares CDB commands. These are typcially pass-through
1349 * commands to the devices.
1350 */
1351 static int
1352 megasas_build_dcdb(struct megasas_instance *instance, struct scsi_cmnd *scp,
1353 struct megasas_cmd *cmd)
1354 {
1355 u32 is_logical;
1356 u32 device_id;
1357 u16 flags = 0;
1358 struct megasas_pthru_frame *pthru;
1359
1360 is_logical = MEGASAS_IS_LOGICAL(scp->device);
1361 device_id = MEGASAS_DEV_INDEX(scp);
1362 pthru = (struct megasas_pthru_frame *)cmd->frame;
1363
1364 if (scp->sc_data_direction == DMA_TO_DEVICE)
1365 flags = MFI_FRAME_DIR_WRITE;
1366 else if (scp->sc_data_direction == DMA_FROM_DEVICE)
1367 flags = MFI_FRAME_DIR_READ;
1368 else if (scp->sc_data_direction == DMA_NONE)
1369 flags = MFI_FRAME_DIR_NONE;
1370
1371 if (instance->flag_ieee == 1) {
1372 flags |= MFI_FRAME_IEEE;
1373 }
1374
1375 /*
1376 * Prepare the DCDB frame
1377 */
1378 pthru->cmd = (is_logical) ? MFI_CMD_LD_SCSI_IO : MFI_CMD_PD_SCSI_IO;
1379 pthru->cmd_status = 0x0;
1380 pthru->scsi_status = 0x0;
1381 pthru->target_id = device_id;
1382 pthru->lun = scp->device->lun;
1383 pthru->cdb_len = scp->cmd_len;
1384 pthru->timeout = 0;
1385 pthru->pad_0 = 0;
1386 pthru->flags = cpu_to_le16(flags);
1387 pthru->data_xfer_len = cpu_to_le32(scsi_bufflen(scp));
1388
1389 memcpy(pthru->cdb, scp->cmnd, scp->cmd_len);
1390
1391 /*
1392 * If the command is for the tape device, set the
1393 * pthru timeout to the os layer timeout value.
1394 */
1395 if (scp->device->type == TYPE_TAPE) {
1396 if ((scp->request->timeout / HZ) > 0xFFFF)
1397 pthru->timeout = cpu_to_le16(0xFFFF);
1398 else
1399 pthru->timeout = cpu_to_le16(scp->request->timeout / HZ);
1400 }
1401
1402 /*
1403 * Construct SGL
1404 */
1405 if (instance->flag_ieee == 1) {
1406 pthru->flags |= cpu_to_le16(MFI_FRAME_SGL64);
1407 pthru->sge_count = megasas_make_sgl_skinny(instance, scp,
1408 &pthru->sgl);
1409 } else if (IS_DMA64) {
1410 pthru->flags |= cpu_to_le16(MFI_FRAME_SGL64);
1411 pthru->sge_count = megasas_make_sgl64(instance, scp,
1412 &pthru->sgl);
1413 } else
1414 pthru->sge_count = megasas_make_sgl32(instance, scp,
1415 &pthru->sgl);
1416
1417 if (pthru->sge_count > instance->max_num_sge) {
1418 dev_err(&instance->pdev->dev, "DCDB too many SGE NUM=%x\n",
1419 pthru->sge_count);
1420 return 0;
1421 }
1422
1423 /*
1424 * Sense info specific
1425 */
1426 pthru->sense_len = SCSI_SENSE_BUFFERSIZE;
1427 pthru->sense_buf_phys_addr_hi =
1428 cpu_to_le32(upper_32_bits(cmd->sense_phys_addr));
1429 pthru->sense_buf_phys_addr_lo =
1430 cpu_to_le32(lower_32_bits(cmd->sense_phys_addr));
1431
1432 /*
1433 * Compute the total number of frames this command consumes. FW uses
1434 * this number to pull sufficient number of frames from host memory.
1435 */
1436 cmd->frame_count = megasas_get_frame_count(instance, pthru->sge_count,
1437 PTHRU_FRAME);
1438
1439 return cmd->frame_count;
1440 }
1441
1442 /**
1443 * megasas_build_ldio - Prepares IOs to logical devices
1444 * @instance: Adapter soft state
1445 * @scp: SCSI command
1446 * @cmd: Command to be prepared
1447 *
1448 * Frames (and accompanying SGLs) for regular SCSI IOs use this function.
1449 */
1450 static int
1451 megasas_build_ldio(struct megasas_instance *instance, struct scsi_cmnd *scp,
1452 struct megasas_cmd *cmd)
1453 {
1454 u32 device_id;
1455 u8 sc = scp->cmnd[0];
1456 u16 flags = 0;
1457 struct megasas_io_frame *ldio;
1458
1459 device_id = MEGASAS_DEV_INDEX(scp);
1460 ldio = (struct megasas_io_frame *)cmd->frame;
1461
1462 if (scp->sc_data_direction == DMA_TO_DEVICE)
1463 flags = MFI_FRAME_DIR_WRITE;
1464 else if (scp->sc_data_direction == DMA_FROM_DEVICE)
1465 flags = MFI_FRAME_DIR_READ;
1466
1467 if (instance->flag_ieee == 1) {
1468 flags |= MFI_FRAME_IEEE;
1469 }
1470
1471 /*
1472 * Prepare the Logical IO frame: 2nd bit is zero for all read cmds
1473 */
1474 ldio->cmd = (sc & 0x02) ? MFI_CMD_LD_WRITE : MFI_CMD_LD_READ;
1475 ldio->cmd_status = 0x0;
1476 ldio->scsi_status = 0x0;
1477 ldio->target_id = device_id;
1478 ldio->timeout = 0;
1479 ldio->reserved_0 = 0;
1480 ldio->pad_0 = 0;
1481 ldio->flags = cpu_to_le16(flags);
1482 ldio->start_lba_hi = 0;
1483 ldio->access_byte = (scp->cmd_len != 6) ? scp->cmnd[1] : 0;
1484
1485 /*
1486 * 6-byte READ(0x08) or WRITE(0x0A) cdb
1487 */
1488 if (scp->cmd_len == 6) {
1489 ldio->lba_count = cpu_to_le32((u32) scp->cmnd[4]);
1490 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[1] << 16) |
1491 ((u32) scp->cmnd[2] << 8) |
1492 (u32) scp->cmnd[3]);
1493
1494 ldio->start_lba_lo &= cpu_to_le32(0x1FFFFF);
1495 }
1496
1497 /*
1498 * 10-byte READ(0x28) or WRITE(0x2A) cdb
1499 */
1500 else if (scp->cmd_len == 10) {
1501 ldio->lba_count = cpu_to_le32((u32) scp->cmnd[8] |
1502 ((u32) scp->cmnd[7] << 8));
1503 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[2] << 24) |
1504 ((u32) scp->cmnd[3] << 16) |
1505 ((u32) scp->cmnd[4] << 8) |
1506 (u32) scp->cmnd[5]);
1507 }
1508
1509 /*
1510 * 12-byte READ(0xA8) or WRITE(0xAA) cdb
1511 */
1512 else if (scp->cmd_len == 12) {
1513 ldio->lba_count = cpu_to_le32(((u32) scp->cmnd[6] << 24) |
1514 ((u32) scp->cmnd[7] << 16) |
1515 ((u32) scp->cmnd[8] << 8) |
1516 (u32) scp->cmnd[9]);
1517
1518 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[2] << 24) |
1519 ((u32) scp->cmnd[3] << 16) |
1520 ((u32) scp->cmnd[4] << 8) |
1521 (u32) scp->cmnd[5]);
1522 }
1523
1524 /*
1525 * 16-byte READ(0x88) or WRITE(0x8A) cdb
1526 */
1527 else if (scp->cmd_len == 16) {
1528 ldio->lba_count = cpu_to_le32(((u32) scp->cmnd[10] << 24) |
1529 ((u32) scp->cmnd[11] << 16) |
1530 ((u32) scp->cmnd[12] << 8) |
1531 (u32) scp->cmnd[13]);
1532
1533 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[6] << 24) |
1534 ((u32) scp->cmnd[7] << 16) |
1535 ((u32) scp->cmnd[8] << 8) |
1536 (u32) scp->cmnd[9]);
1537
1538 ldio->start_lba_hi = cpu_to_le32(((u32) scp->cmnd[2] << 24) |
1539 ((u32) scp->cmnd[3] << 16) |
1540 ((u32) scp->cmnd[4] << 8) |
1541 (u32) scp->cmnd[5]);
1542
1543 }
1544
1545 /*
1546 * Construct SGL
1547 */
1548 if (instance->flag_ieee) {
1549 ldio->flags |= cpu_to_le16(MFI_FRAME_SGL64);
1550 ldio->sge_count = megasas_make_sgl_skinny(instance, scp,
1551 &ldio->sgl);
1552 } else if (IS_DMA64) {
1553 ldio->flags |= cpu_to_le16(MFI_FRAME_SGL64);
1554 ldio->sge_count = megasas_make_sgl64(instance, scp, &ldio->sgl);
1555 } else
1556 ldio->sge_count = megasas_make_sgl32(instance, scp, &ldio->sgl);
1557
1558 if (ldio->sge_count > instance->max_num_sge) {
1559 dev_err(&instance->pdev->dev, "build_ld_io: sge_count = %x\n",
1560 ldio->sge_count);
1561 return 0;
1562 }
1563
1564 /*
1565 * Sense info specific
1566 */
1567 ldio->sense_len = SCSI_SENSE_BUFFERSIZE;
1568 ldio->sense_buf_phys_addr_hi = 0;
1569 ldio->sense_buf_phys_addr_lo = cpu_to_le32(cmd->sense_phys_addr);
1570
1571 /*
1572 * Compute the total number of frames this command consumes. FW uses
1573 * this number to pull sufficient number of frames from host memory.
1574 */
1575 cmd->frame_count = megasas_get_frame_count(instance,
1576 ldio->sge_count, IO_FRAME);
1577
1578 return cmd->frame_count;
1579 }
1580
1581 /**
1582 * megasas_cmd_type - Checks if the cmd is for logical drive/sysPD
1583 * and whether it's RW or non RW
1584 * @scmd: SCSI command
1585 *
1586 */
1587 inline int megasas_cmd_type(struct scsi_cmnd *cmd)
1588 {
1589 int ret;
1590
1591 switch (cmd->cmnd[0]) {
1592 case READ_10:
1593 case WRITE_10:
1594 case READ_12:
1595 case WRITE_12:
1596 case READ_6:
1597 case WRITE_6:
1598 case READ_16:
1599 case WRITE_16:
1600 ret = (MEGASAS_IS_LOGICAL(cmd->device)) ?
1601 READ_WRITE_LDIO : READ_WRITE_SYSPDIO;
1602 break;
1603 default:
1604 ret = (MEGASAS_IS_LOGICAL(cmd->device)) ?
1605 NON_READ_WRITE_LDIO : NON_READ_WRITE_SYSPDIO;
1606 }
1607 return ret;
1608 }
1609
1610 /**
1611 * megasas_dump_pending_frames - Dumps the frame address of all pending cmds
1612 * in FW
1613 * @instance: Adapter soft state
1614 */
1615 static inline void
1616 megasas_dump_pending_frames(struct megasas_instance *instance)
1617 {
1618 struct megasas_cmd *cmd;
1619 int i,n;
1620 union megasas_sgl *mfi_sgl;
1621 struct megasas_io_frame *ldio;
1622 struct megasas_pthru_frame *pthru;
1623 u32 sgcount;
1624 u16 max_cmd = instance->max_fw_cmds;
1625
1626 dev_err(&instance->pdev->dev, "[%d]: Dumping Frame Phys Address of all pending cmds in FW\n",instance->host->host_no);
1627 dev_err(&instance->pdev->dev, "[%d]: Total OS Pending cmds : %d\n",instance->host->host_no,atomic_read(&instance->fw_outstanding));
1628 if (IS_DMA64)
1629 dev_err(&instance->pdev->dev, "[%d]: 64 bit SGLs were sent to FW\n",instance->host->host_no);
1630 else
1631 dev_err(&instance->pdev->dev, "[%d]: 32 bit SGLs were sent to FW\n",instance->host->host_no);
1632
1633 dev_err(&instance->pdev->dev, "[%d]: Pending OS cmds in FW : \n",instance->host->host_no);
1634 for (i = 0; i < max_cmd; i++) {
1635 cmd = instance->cmd_list[i];
1636 if (!cmd->scmd)
1637 continue;
1638 dev_err(&instance->pdev->dev, "[%d]: Frame addr :0x%08lx : ",instance->host->host_no,(unsigned long)cmd->frame_phys_addr);
1639 if (megasas_cmd_type(cmd->scmd) == READ_WRITE_LDIO) {
1640 ldio = (struct megasas_io_frame *)cmd->frame;
1641 mfi_sgl = &ldio->sgl;
1642 sgcount = ldio->sge_count;
1643 dev_err(&instance->pdev->dev, "[%d]: frame count : 0x%x, Cmd : 0x%x, Tgt id : 0x%x,"
1644 " lba lo : 0x%x, lba_hi : 0x%x, sense_buf addr : 0x%x,sge count : 0x%x\n",
1645 instance->host->host_no, cmd->frame_count, ldio->cmd, ldio->target_id,
1646 le32_to_cpu(ldio->start_lba_lo), le32_to_cpu(ldio->start_lba_hi),
1647 le32_to_cpu(ldio->sense_buf_phys_addr_lo), sgcount);
1648 } else {
1649 pthru = (struct megasas_pthru_frame *) cmd->frame;
1650 mfi_sgl = &pthru->sgl;
1651 sgcount = pthru->sge_count;
1652 dev_err(&instance->pdev->dev, "[%d]: frame count : 0x%x, Cmd : 0x%x, Tgt id : 0x%x, "
1653 "lun : 0x%x, cdb_len : 0x%x, data xfer len : 0x%x, sense_buf addr : 0x%x,sge count : 0x%x\n",
1654 instance->host->host_no, cmd->frame_count, pthru->cmd, pthru->target_id,
1655 pthru->lun, pthru->cdb_len, le32_to_cpu(pthru->data_xfer_len),
1656 le32_to_cpu(pthru->sense_buf_phys_addr_lo), sgcount);
1657 }
1658 if (megasas_dbg_lvl & MEGASAS_DBG_LVL) {
1659 for (n = 0; n < sgcount; n++) {
1660 if (IS_DMA64)
1661 dev_err(&instance->pdev->dev, "sgl len : 0x%x, sgl addr : 0x%llx\n",
1662 le32_to_cpu(mfi_sgl->sge64[n].length),
1663 le64_to_cpu(mfi_sgl->sge64[n].phys_addr));
1664 else
1665 dev_err(&instance->pdev->dev, "sgl len : 0x%x, sgl addr : 0x%x\n",
1666 le32_to_cpu(mfi_sgl->sge32[n].length),
1667 le32_to_cpu(mfi_sgl->sge32[n].phys_addr));
1668 }
1669 }
1670 } /*for max_cmd*/
1671 dev_err(&instance->pdev->dev, "[%d]: Pending Internal cmds in FW : \n",instance->host->host_no);
1672 for (i = 0; i < max_cmd; i++) {
1673
1674 cmd = instance->cmd_list[i];
1675
1676 if (cmd->sync_cmd == 1)
1677 dev_err(&instance->pdev->dev, "0x%08lx : ", (unsigned long)cmd->frame_phys_addr);
1678 }
1679 dev_err(&instance->pdev->dev, "[%d]: Dumping Done\n\n",instance->host->host_no);
1680 }
1681
1682 u32
1683 megasas_build_and_issue_cmd(struct megasas_instance *instance,
1684 struct scsi_cmnd *scmd)
1685 {
1686 struct megasas_cmd *cmd;
1687 u32 frame_count;
1688
1689 cmd = megasas_get_cmd(instance);
1690 if (!cmd)
1691 return SCSI_MLQUEUE_HOST_BUSY;
1692
1693 /*
1694 * Logical drive command
1695 */
1696 if (megasas_cmd_type(scmd) == READ_WRITE_LDIO)
1697 frame_count = megasas_build_ldio(instance, scmd, cmd);
1698 else
1699 frame_count = megasas_build_dcdb(instance, scmd, cmd);
1700
1701 if (!frame_count)
1702 goto out_return_cmd;
1703
1704 cmd->scmd = scmd;
1705 scmd->SCp.ptr = (char *)cmd;
1706
1707 /*
1708 * Issue the command to the FW
1709 */
1710 atomic_inc(&instance->fw_outstanding);
1711
1712 instance->instancet->fire_cmd(instance, cmd->frame_phys_addr,
1713 cmd->frame_count-1, instance->reg_set);
1714
1715 return 0;
1716 out_return_cmd:
1717 megasas_return_cmd(instance, cmd);
1718 return SCSI_MLQUEUE_HOST_BUSY;
1719 }
1720
1721
1722 /**
1723 * megasas_queue_command - Queue entry point
1724 * @scmd: SCSI command to be queued
1725 * @done: Callback entry point
1726 */
1727 static int
1728 megasas_queue_command(struct Scsi_Host *shost, struct scsi_cmnd *scmd)
1729 {
1730 struct megasas_instance *instance;
1731 struct MR_PRIV_DEVICE *mr_device_priv_data;
1732
1733 instance = (struct megasas_instance *)
1734 scmd->device->host->hostdata;
1735
1736 if (instance->unload == 1) {
1737 scmd->result = DID_NO_CONNECT << 16;
1738 scmd->scsi_done(scmd);
1739 return 0;
1740 }
1741
1742 if (instance->issuepend_done == 0)
1743 return SCSI_MLQUEUE_HOST_BUSY;
1744
1745
1746 /* Check for an mpio path and adjust behavior */
1747 if (atomic_read(&instance->adprecovery) == MEGASAS_ADPRESET_SM_INFAULT) {
1748 if (megasas_check_mpio_paths(instance, scmd) ==
1749 (DID_REQUEUE << 16)) {
1750 return SCSI_MLQUEUE_HOST_BUSY;
1751 } else {
1752 scmd->result = DID_NO_CONNECT << 16;
1753 scmd->scsi_done(scmd);
1754 return 0;
1755 }
1756 }
1757
1758 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
1759 scmd->result = DID_NO_CONNECT << 16;
1760 scmd->scsi_done(scmd);
1761 return 0;
1762 }
1763
1764 mr_device_priv_data = scmd->device->hostdata;
1765 if (!mr_device_priv_data) {
1766 scmd->result = DID_NO_CONNECT << 16;
1767 scmd->scsi_done(scmd);
1768 return 0;
1769 }
1770
1771 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL)
1772 return SCSI_MLQUEUE_HOST_BUSY;
1773
1774 if (mr_device_priv_data->tm_busy)
1775 return SCSI_MLQUEUE_DEVICE_BUSY;
1776
1777
1778 scmd->result = 0;
1779
1780 if (MEGASAS_IS_LOGICAL(scmd->device) &&
1781 (scmd->device->id >= instance->fw_supported_vd_count ||
1782 scmd->device->lun)) {
1783 scmd->result = DID_BAD_TARGET << 16;
1784 goto out_done;
1785 }
1786
1787 if ((scmd->cmnd[0] == SYNCHRONIZE_CACHE) &&
1788 MEGASAS_IS_LOGICAL(scmd->device) &&
1789 (!instance->fw_sync_cache_support)) {
1790 scmd->result = DID_OK << 16;
1791 goto out_done;
1792 }
1793
1794 return instance->instancet->build_and_issue_cmd(instance, scmd);
1795
1796 out_done:
1797 scmd->scsi_done(scmd);
1798 return 0;
1799 }
1800
1801 static struct megasas_instance *megasas_lookup_instance(u16 host_no)
1802 {
1803 int i;
1804
1805 for (i = 0; i < megasas_mgmt_info.max_index; i++) {
1806
1807 if ((megasas_mgmt_info.instance[i]) &&
1808 (megasas_mgmt_info.instance[i]->host->host_no == host_no))
1809 return megasas_mgmt_info.instance[i];
1810 }
1811
1812 return NULL;
1813 }
1814
1815 /*
1816 * megasas_set_dynamic_target_properties -
1817 * Device property set by driver may not be static and it is required to be
1818 * updated after OCR
1819 *
1820 * set tm_capable.
1821 * set dma alignment (only for eedp protection enable vd).
1822 *
1823 * @sdev: OS provided scsi device
1824 *
1825 * Returns void
1826 */
1827 void megasas_set_dynamic_target_properties(struct scsi_device *sdev,
1828 bool is_target_prop)
1829 {
1830 u16 pd_index = 0, ld;
1831 u32 device_id;
1832 struct megasas_instance *instance;
1833 struct fusion_context *fusion;
1834 struct MR_PRIV_DEVICE *mr_device_priv_data;
1835 struct MR_PD_CFG_SEQ_NUM_SYNC *pd_sync;
1836 struct MR_LD_RAID *raid;
1837 struct MR_DRV_RAID_MAP_ALL *local_map_ptr;
1838
1839 instance = megasas_lookup_instance(sdev->host->host_no);
1840 fusion = instance->ctrl_context;
1841 mr_device_priv_data = sdev->hostdata;
1842
1843 if (!fusion || !mr_device_priv_data)
1844 return;
1845
1846 if (MEGASAS_IS_LOGICAL(sdev)) {
1847 device_id = ((sdev->channel % 2) * MEGASAS_MAX_DEV_PER_CHANNEL)
1848 + sdev->id;
1849 local_map_ptr = fusion->ld_drv_map[(instance->map_id & 1)];
1850 ld = MR_TargetIdToLdGet(device_id, local_map_ptr);
1851 if (ld >= instance->fw_supported_vd_count)
1852 return;
1853 raid = MR_LdRaidGet(ld, local_map_ptr);
1854
1855 if (raid->capability.ldPiMode == MR_PROT_INFO_TYPE_CONTROLLER)
1856 blk_queue_update_dma_alignment(sdev->request_queue, 0x7);
1857
1858 mr_device_priv_data->is_tm_capable =
1859 raid->capability.tmCapable;
1860 } else if (instance->use_seqnum_jbod_fp) {
1861 pd_index = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) +
1862 sdev->id;
1863 pd_sync = (void *)fusion->pd_seq_sync
1864 [(instance->pd_seq_map_id - 1) & 1];
1865 mr_device_priv_data->is_tm_capable =
1866 pd_sync->seq[pd_index].capability.tmCapable;
1867 }
1868
1869 if (is_target_prop && instance->tgt_prop->reset_tmo) {
1870 /*
1871 * If FW provides a target reset timeout value, driver will use
1872 * it. If not set, fallback to default values.
1873 */
1874 mr_device_priv_data->target_reset_tmo =
1875 min_t(u8, instance->max_reset_tmo,
1876 instance->tgt_prop->reset_tmo);
1877 mr_device_priv_data->task_abort_tmo = instance->task_abort_tmo;
1878 } else {
1879 mr_device_priv_data->target_reset_tmo =
1880 MEGASAS_DEFAULT_TM_TIMEOUT;
1881 mr_device_priv_data->task_abort_tmo =
1882 MEGASAS_DEFAULT_TM_TIMEOUT;
1883 }
1884 }
1885
1886 /*
1887 * megasas_set_nvme_device_properties -
1888 * set nomerges=2
1889 * set virtual page boundary = 4K (current mr_nvme_pg_size is 4K).
1890 * set maximum io transfer = MDTS of NVME device provided by MR firmware.
1891 *
1892 * MR firmware provides value in KB. Caller of this function converts
1893 * kb into bytes.
1894 *
1895 * e.a MDTS=5 means 2^5 * nvme page size. (In case of 4K page size,
1896 * MR firmware provides value 128 as (32 * 4K) = 128K.
1897 *
1898 * @sdev: scsi device
1899 * @max_io_size: maximum io transfer size
1900 *
1901 */
1902 static inline void
1903 megasas_set_nvme_device_properties(struct scsi_device *sdev, u32 max_io_size)
1904 {
1905 struct megasas_instance *instance;
1906 u32 mr_nvme_pg_size;
1907
1908 instance = (struct megasas_instance *)sdev->host->hostdata;
1909 mr_nvme_pg_size = max_t(u32, instance->nvme_page_size,
1910 MR_DEFAULT_NVME_PAGE_SIZE);
1911
1912 blk_queue_max_hw_sectors(sdev->request_queue, (max_io_size / 512));
1913
1914 blk_queue_flag_set(QUEUE_FLAG_NOMERGES, sdev->request_queue);
1915 blk_queue_virt_boundary(sdev->request_queue, mr_nvme_pg_size - 1);
1916 }
1917
1918
1919 /*
1920 * megasas_set_static_target_properties -
1921 * Device property set by driver are static and it is not required to be
1922 * updated after OCR.
1923 *
1924 * set io timeout
1925 * set device queue depth
1926 * set nvme device properties. see - megasas_set_nvme_device_properties
1927 *
1928 * @sdev: scsi device
1929 * @is_target_prop true, if fw provided target properties.
1930 */
1931 static void megasas_set_static_target_properties(struct scsi_device *sdev,
1932 bool is_target_prop)
1933 {
1934 u16 target_index = 0;
1935 u8 interface_type;
1936 u32 device_qd = MEGASAS_DEFAULT_CMD_PER_LUN;
1937 u32 max_io_size_kb = MR_DEFAULT_NVME_MDTS_KB;
1938 u32 tgt_device_qd;
1939 struct megasas_instance *instance;
1940 struct MR_PRIV_DEVICE *mr_device_priv_data;
1941
1942 instance = megasas_lookup_instance(sdev->host->host_no);
1943 mr_device_priv_data = sdev->hostdata;
1944 interface_type = mr_device_priv_data->interface_type;
1945
1946 /*
1947 * The RAID firmware may require extended timeouts.
1948 */
1949 blk_queue_rq_timeout(sdev->request_queue, scmd_timeout * HZ);
1950
1951 target_index = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + sdev->id;
1952
1953 switch (interface_type) {
1954 case SAS_PD:
1955 device_qd = MEGASAS_SAS_QD;
1956 break;
1957 case SATA_PD:
1958 device_qd = MEGASAS_SATA_QD;
1959 break;
1960 case NVME_PD:
1961 device_qd = MEGASAS_NVME_QD;
1962 break;
1963 }
1964
1965 if (is_target_prop) {
1966 tgt_device_qd = le32_to_cpu(instance->tgt_prop->device_qdepth);
1967 if (tgt_device_qd &&
1968 (tgt_device_qd <= instance->host->can_queue))
1969 device_qd = tgt_device_qd;
1970
1971 /* max_io_size_kb will be set to non zero for
1972 * nvme based vd and syspd.
1973 */
1974 max_io_size_kb = le32_to_cpu(instance->tgt_prop->max_io_size_kb);
1975 }
1976
1977 if (instance->nvme_page_size && max_io_size_kb)
1978 megasas_set_nvme_device_properties(sdev, (max_io_size_kb << 10));
1979
1980 scsi_change_queue_depth(sdev, device_qd);
1981
1982 }
1983
1984
1985 static int megasas_slave_configure(struct scsi_device *sdev)
1986 {
1987 u16 pd_index = 0;
1988 struct megasas_instance *instance;
1989 int ret_target_prop = DCMD_FAILED;
1990 bool is_target_prop = false;
1991
1992 instance = megasas_lookup_instance(sdev->host->host_no);
1993 if (instance->pd_list_not_supported) {
1994 if (!MEGASAS_IS_LOGICAL(sdev) && sdev->type == TYPE_DISK) {
1995 pd_index = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) +
1996 sdev->id;
1997 if (instance->pd_list[pd_index].driveState !=
1998 MR_PD_STATE_SYSTEM)
1999 return -ENXIO;
2000 }
2001 }
2002
2003 mutex_lock(&instance->reset_mutex);
2004 /* Send DCMD to Firmware and cache the information */
2005 if ((instance->pd_info) && !MEGASAS_IS_LOGICAL(sdev))
2006 megasas_get_pd_info(instance, sdev);
2007
2008 /* Some ventura firmware may not have instance->nvme_page_size set.
2009 * Do not send MR_DCMD_DRV_GET_TARGET_PROP
2010 */
2011 if ((instance->tgt_prop) && (instance->nvme_page_size))
2012 ret_target_prop = megasas_get_target_prop(instance, sdev);
2013
2014 is_target_prop = (ret_target_prop == DCMD_SUCCESS) ? true : false;
2015 megasas_set_static_target_properties(sdev, is_target_prop);
2016
2017 /* This sdev property may change post OCR */
2018 megasas_set_dynamic_target_properties(sdev, is_target_prop);
2019
2020 mutex_unlock(&instance->reset_mutex);
2021
2022 return 0;
2023 }
2024
2025 static int megasas_slave_alloc(struct scsi_device *sdev)
2026 {
2027 u16 pd_index = 0;
2028 struct megasas_instance *instance ;
2029 struct MR_PRIV_DEVICE *mr_device_priv_data;
2030
2031 instance = megasas_lookup_instance(sdev->host->host_no);
2032 if (!MEGASAS_IS_LOGICAL(sdev)) {
2033 /*
2034 * Open the OS scan to the SYSTEM PD
2035 */
2036 pd_index =
2037 (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) +
2038 sdev->id;
2039 if ((instance->pd_list_not_supported ||
2040 instance->pd_list[pd_index].driveState ==
2041 MR_PD_STATE_SYSTEM)) {
2042 goto scan_target;
2043 }
2044 return -ENXIO;
2045 }
2046
2047 scan_target:
2048 mr_device_priv_data = kzalloc(sizeof(*mr_device_priv_data),
2049 GFP_KERNEL);
2050 if (!mr_device_priv_data)
2051 return -ENOMEM;
2052 sdev->hostdata = mr_device_priv_data;
2053
2054 atomic_set(&mr_device_priv_data->r1_ldio_hint,
2055 instance->r1_ldio_hint_default);
2056 return 0;
2057 }
2058
2059 static void megasas_slave_destroy(struct scsi_device *sdev)
2060 {
2061 kfree(sdev->hostdata);
2062 sdev->hostdata = NULL;
2063 }
2064
2065 /*
2066 * megasas_complete_outstanding_ioctls - Complete outstanding ioctls after a
2067 * kill adapter
2068 * @instance: Adapter soft state
2069 *
2070 */
2071 static void megasas_complete_outstanding_ioctls(struct megasas_instance *instance)
2072 {
2073 int i;
2074 struct megasas_cmd *cmd_mfi;
2075 struct megasas_cmd_fusion *cmd_fusion;
2076 struct fusion_context *fusion = instance->ctrl_context;
2077
2078 /* Find all outstanding ioctls */
2079 if (fusion) {
2080 for (i = 0; i < instance->max_fw_cmds; i++) {
2081 cmd_fusion = fusion->cmd_list[i];
2082 if (cmd_fusion->sync_cmd_idx != (u32)ULONG_MAX) {
2083 cmd_mfi = instance->cmd_list[cmd_fusion->sync_cmd_idx];
2084 if (cmd_mfi->sync_cmd &&
2085 (cmd_mfi->frame->hdr.cmd != MFI_CMD_ABORT)) {
2086 cmd_mfi->frame->hdr.cmd_status =
2087 MFI_STAT_WRONG_STATE;
2088 megasas_complete_cmd(instance,
2089 cmd_mfi, DID_OK);
2090 }
2091 }
2092 }
2093 } else {
2094 for (i = 0; i < instance->max_fw_cmds; i++) {
2095 cmd_mfi = instance->cmd_list[i];
2096 if (cmd_mfi->sync_cmd && cmd_mfi->frame->hdr.cmd !=
2097 MFI_CMD_ABORT)
2098 megasas_complete_cmd(instance, cmd_mfi, DID_OK);
2099 }
2100 }
2101 }
2102
2103
2104 void megaraid_sas_kill_hba(struct megasas_instance *instance)
2105 {
2106 /* Set critical error to block I/O & ioctls in case caller didn't */
2107 atomic_set(&instance->adprecovery, MEGASAS_HW_CRITICAL_ERROR);
2108 /* Wait 1 second to ensure IO or ioctls in build have posted */
2109 msleep(1000);
2110 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
2111 (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY) ||
2112 (instance->adapter_type != MFI_SERIES)) {
2113 if (!instance->requestorId) {
2114 writel(MFI_STOP_ADP, &instance->reg_set->doorbell);
2115 /* Flush */
2116 readl(&instance->reg_set->doorbell);
2117 }
2118 if (instance->requestorId && instance->peerIsPresent)
2119 memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS);
2120 } else {
2121 writel(MFI_STOP_ADP,
2122 &instance->reg_set->inbound_doorbell);
2123 }
2124 /* Complete outstanding ioctls when adapter is killed */
2125 megasas_complete_outstanding_ioctls(instance);
2126 }
2127
2128 /**
2129 * megasas_check_and_restore_queue_depth - Check if queue depth needs to be
2130 * restored to max value
2131 * @instance: Adapter soft state
2132 *
2133 */
2134 void
2135 megasas_check_and_restore_queue_depth(struct megasas_instance *instance)
2136 {
2137 unsigned long flags;
2138
2139 if (instance->flag & MEGASAS_FW_BUSY
2140 && time_after(jiffies, instance->last_time + 5 * HZ)
2141 && atomic_read(&instance->fw_outstanding) <
2142 instance->throttlequeuedepth + 1) {
2143
2144 spin_lock_irqsave(instance->host->host_lock, flags);
2145 instance->flag &= ~MEGASAS_FW_BUSY;
2146
2147 instance->host->can_queue = instance->cur_can_queue;
2148 spin_unlock_irqrestore(instance->host->host_lock, flags);
2149 }
2150 }
2151
2152 /**
2153 * megasas_complete_cmd_dpc - Returns FW's controller structure
2154 * @instance_addr: Address of adapter soft state
2155 *
2156 * Tasklet to complete cmds
2157 */
2158 static void megasas_complete_cmd_dpc(unsigned long instance_addr)
2159 {
2160 u32 producer;
2161 u32 consumer;
2162 u32 context;
2163 struct megasas_cmd *cmd;
2164 struct megasas_instance *instance =
2165 (struct megasas_instance *)instance_addr;
2166 unsigned long flags;
2167
2168 /* If we have already declared adapter dead, donot complete cmds */
2169 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR)
2170 return;
2171
2172 spin_lock_irqsave(&instance->completion_lock, flags);
2173
2174 producer = le32_to_cpu(*instance->producer);
2175 consumer = le32_to_cpu(*instance->consumer);
2176
2177 while (consumer != producer) {
2178 context = le32_to_cpu(instance->reply_queue[consumer]);
2179 if (context >= instance->max_fw_cmds) {
2180 dev_err(&instance->pdev->dev, "Unexpected context value %x\n",
2181 context);
2182 BUG();
2183 }
2184
2185 cmd = instance->cmd_list[context];
2186
2187 megasas_complete_cmd(instance, cmd, DID_OK);
2188
2189 consumer++;
2190 if (consumer == (instance->max_fw_cmds + 1)) {
2191 consumer = 0;
2192 }
2193 }
2194
2195 *instance->consumer = cpu_to_le32(producer);
2196
2197 spin_unlock_irqrestore(&instance->completion_lock, flags);
2198
2199 /*
2200 * Check if we can restore can_queue
2201 */
2202 megasas_check_and_restore_queue_depth(instance);
2203 }
2204
2205 static void megasas_sriov_heartbeat_handler(struct timer_list *t);
2206
2207 /**
2208 * megasas_start_timer - Initializes sriov heartbeat timer object
2209 * @instance: Adapter soft state
2210 *
2211 */
2212 void megasas_start_timer(struct megasas_instance *instance)
2213 {
2214 struct timer_list *timer = &instance->sriov_heartbeat_timer;
2215
2216 timer_setup(timer, megasas_sriov_heartbeat_handler, 0);
2217 timer->expires = jiffies + MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF;
2218 add_timer(timer);
2219 }
2220
2221 static void
2222 megasas_internal_reset_defer_cmds(struct megasas_instance *instance);
2223
2224 static void
2225 process_fw_state_change_wq(struct work_struct *work);
2226
2227 void megasas_do_ocr(struct megasas_instance *instance)
2228 {
2229 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS1064R) ||
2230 (instance->pdev->device == PCI_DEVICE_ID_DELL_PERC5) ||
2231 (instance->pdev->device == PCI_DEVICE_ID_LSI_VERDE_ZCR)) {
2232 *instance->consumer = cpu_to_le32(MEGASAS_ADPRESET_INPROG_SIGN);
2233 }
2234 instance->instancet->disable_intr(instance);
2235 atomic_set(&instance->adprecovery, MEGASAS_ADPRESET_SM_INFAULT);
2236 instance->issuepend_done = 0;
2237
2238 atomic_set(&instance->fw_outstanding, 0);
2239 megasas_internal_reset_defer_cmds(instance);
2240 process_fw_state_change_wq(&instance->work_init);
2241 }
2242
2243 static int megasas_get_ld_vf_affiliation_111(struct megasas_instance *instance,
2244 int initial)
2245 {
2246 struct megasas_cmd *cmd;
2247 struct megasas_dcmd_frame *dcmd;
2248 struct MR_LD_VF_AFFILIATION_111 *new_affiliation_111 = NULL;
2249 dma_addr_t new_affiliation_111_h;
2250 int ld, retval = 0;
2251 u8 thisVf;
2252
2253 cmd = megasas_get_cmd(instance);
2254
2255 if (!cmd) {
2256 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_vf_affiliation_111:"
2257 "Failed to get cmd for scsi%d\n",
2258 instance->host->host_no);
2259 return -ENOMEM;
2260 }
2261
2262 dcmd = &cmd->frame->dcmd;
2263
2264 if (!instance->vf_affiliation_111) {
2265 dev_warn(&instance->pdev->dev, "SR-IOV: Couldn't get LD/VF "
2266 "affiliation for scsi%d\n", instance->host->host_no);
2267 megasas_return_cmd(instance, cmd);
2268 return -ENOMEM;
2269 }
2270
2271 if (initial)
2272 memset(instance->vf_affiliation_111, 0,
2273 sizeof(struct MR_LD_VF_AFFILIATION_111));
2274 else {
2275 new_affiliation_111 =
2276 dma_alloc_coherent(&instance->pdev->dev,
2277 sizeof(struct MR_LD_VF_AFFILIATION_111),
2278 &new_affiliation_111_h, GFP_KERNEL);
2279 if (!new_affiliation_111) {
2280 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate "
2281 "memory for new affiliation for scsi%d\n",
2282 instance->host->host_no);
2283 megasas_return_cmd(instance, cmd);
2284 return -ENOMEM;
2285 }
2286 }
2287
2288 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
2289
2290 dcmd->cmd = MFI_CMD_DCMD;
2291 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
2292 dcmd->sge_count = 1;
2293 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_BOTH);
2294 dcmd->timeout = 0;
2295 dcmd->pad_0 = 0;
2296 dcmd->data_xfer_len =
2297 cpu_to_le32(sizeof(struct MR_LD_VF_AFFILIATION_111));
2298 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_VF_MAP_GET_ALL_LDS_111);
2299
2300 if (initial)
2301 dcmd->sgl.sge32[0].phys_addr =
2302 cpu_to_le32(instance->vf_affiliation_111_h);
2303 else
2304 dcmd->sgl.sge32[0].phys_addr =
2305 cpu_to_le32(new_affiliation_111_h);
2306
2307 dcmd->sgl.sge32[0].length = cpu_to_le32(
2308 sizeof(struct MR_LD_VF_AFFILIATION_111));
2309
2310 dev_warn(&instance->pdev->dev, "SR-IOV: Getting LD/VF affiliation for "
2311 "scsi%d\n", instance->host->host_no);
2312
2313 if (megasas_issue_blocked_cmd(instance, cmd, 0) != DCMD_SUCCESS) {
2314 dev_warn(&instance->pdev->dev, "SR-IOV: LD/VF affiliation DCMD"
2315 " failed with status 0x%x for scsi%d\n",
2316 dcmd->cmd_status, instance->host->host_no);
2317 retval = 1; /* Do a scan if we couldn't get affiliation */
2318 goto out;
2319 }
2320
2321 if (!initial) {
2322 thisVf = new_affiliation_111->thisVf;
2323 for (ld = 0 ; ld < new_affiliation_111->vdCount; ld++)
2324 if (instance->vf_affiliation_111->map[ld].policy[thisVf] !=
2325 new_affiliation_111->map[ld].policy[thisVf]) {
2326 dev_warn(&instance->pdev->dev, "SR-IOV: "
2327 "Got new LD/VF affiliation for scsi%d\n",
2328 instance->host->host_no);
2329 memcpy(instance->vf_affiliation_111,
2330 new_affiliation_111,
2331 sizeof(struct MR_LD_VF_AFFILIATION_111));
2332 retval = 1;
2333 goto out;
2334 }
2335 }
2336 out:
2337 if (new_affiliation_111) {
2338 dma_free_coherent(&instance->pdev->dev,
2339 sizeof(struct MR_LD_VF_AFFILIATION_111),
2340 new_affiliation_111,
2341 new_affiliation_111_h);
2342 }
2343
2344 megasas_return_cmd(instance, cmd);
2345
2346 return retval;
2347 }
2348
2349 static int megasas_get_ld_vf_affiliation_12(struct megasas_instance *instance,
2350 int initial)
2351 {
2352 struct megasas_cmd *cmd;
2353 struct megasas_dcmd_frame *dcmd;
2354 struct MR_LD_VF_AFFILIATION *new_affiliation = NULL;
2355 struct MR_LD_VF_MAP *newmap = NULL, *savedmap = NULL;
2356 dma_addr_t new_affiliation_h;
2357 int i, j, retval = 0, found = 0, doscan = 0;
2358 u8 thisVf;
2359
2360 cmd = megasas_get_cmd(instance);
2361
2362 if (!cmd) {
2363 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_vf_affiliation12: "
2364 "Failed to get cmd for scsi%d\n",
2365 instance->host->host_no);
2366 return -ENOMEM;
2367 }
2368
2369 dcmd = &cmd->frame->dcmd;
2370
2371 if (!instance->vf_affiliation) {
2372 dev_warn(&instance->pdev->dev, "SR-IOV: Couldn't get LD/VF "
2373 "affiliation for scsi%d\n", instance->host->host_no);
2374 megasas_return_cmd(instance, cmd);
2375 return -ENOMEM;
2376 }
2377
2378 if (initial)
2379 memset(instance->vf_affiliation, 0, (MAX_LOGICAL_DRIVES + 1) *
2380 sizeof(struct MR_LD_VF_AFFILIATION));
2381 else {
2382 new_affiliation =
2383 dma_alloc_coherent(&instance->pdev->dev,
2384 (MAX_LOGICAL_DRIVES + 1) * sizeof(struct MR_LD_VF_AFFILIATION),
2385 &new_affiliation_h, GFP_KERNEL);
2386 if (!new_affiliation) {
2387 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate "
2388 "memory for new affiliation for scsi%d\n",
2389 instance->host->host_no);
2390 megasas_return_cmd(instance, cmd);
2391 return -ENOMEM;
2392 }
2393 }
2394
2395 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
2396
2397 dcmd->cmd = MFI_CMD_DCMD;
2398 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
2399 dcmd->sge_count = 1;
2400 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_BOTH);
2401 dcmd->timeout = 0;
2402 dcmd->pad_0 = 0;
2403 dcmd->data_xfer_len = cpu_to_le32((MAX_LOGICAL_DRIVES + 1) *
2404 sizeof(struct MR_LD_VF_AFFILIATION));
2405 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_VF_MAP_GET_ALL_LDS);
2406
2407 if (initial)
2408 dcmd->sgl.sge32[0].phys_addr =
2409 cpu_to_le32(instance->vf_affiliation_h);
2410 else
2411 dcmd->sgl.sge32[0].phys_addr =
2412 cpu_to_le32(new_affiliation_h);
2413
2414 dcmd->sgl.sge32[0].length = cpu_to_le32((MAX_LOGICAL_DRIVES + 1) *
2415 sizeof(struct MR_LD_VF_AFFILIATION));
2416
2417 dev_warn(&instance->pdev->dev, "SR-IOV: Getting LD/VF affiliation for "
2418 "scsi%d\n", instance->host->host_no);
2419
2420
2421 if (megasas_issue_blocked_cmd(instance, cmd, 0) != DCMD_SUCCESS) {
2422 dev_warn(&instance->pdev->dev, "SR-IOV: LD/VF affiliation DCMD"
2423 " failed with status 0x%x for scsi%d\n",
2424 dcmd->cmd_status, instance->host->host_no);
2425 retval = 1; /* Do a scan if we couldn't get affiliation */
2426 goto out;
2427 }
2428
2429 if (!initial) {
2430 if (!new_affiliation->ldCount) {
2431 dev_warn(&instance->pdev->dev, "SR-IOV: Got new LD/VF "
2432 "affiliation for passive path for scsi%d\n",
2433 instance->host->host_no);
2434 retval = 1;
2435 goto out;
2436 }
2437 newmap = new_affiliation->map;
2438 savedmap = instance->vf_affiliation->map;
2439 thisVf = new_affiliation->thisVf;
2440 for (i = 0 ; i < new_affiliation->ldCount; i++) {
2441 found = 0;
2442 for (j = 0; j < instance->vf_affiliation->ldCount;
2443 j++) {
2444 if (newmap->ref.targetId ==
2445 savedmap->ref.targetId) {
2446 found = 1;
2447 if (newmap->policy[thisVf] !=
2448 savedmap->policy[thisVf]) {
2449 doscan = 1;
2450 goto out;
2451 }
2452 }
2453 savedmap = (struct MR_LD_VF_MAP *)
2454 ((unsigned char *)savedmap +
2455 savedmap->size);
2456 }
2457 if (!found && newmap->policy[thisVf] !=
2458 MR_LD_ACCESS_HIDDEN) {
2459 doscan = 1;
2460 goto out;
2461 }
2462 newmap = (struct MR_LD_VF_MAP *)
2463 ((unsigned char *)newmap + newmap->size);
2464 }
2465
2466 newmap = new_affiliation->map;
2467 savedmap = instance->vf_affiliation->map;
2468
2469 for (i = 0 ; i < instance->vf_affiliation->ldCount; i++) {
2470 found = 0;
2471 for (j = 0 ; j < new_affiliation->ldCount; j++) {
2472 if (savedmap->ref.targetId ==
2473 newmap->ref.targetId) {
2474 found = 1;
2475 if (savedmap->policy[thisVf] !=
2476 newmap->policy[thisVf]) {
2477 doscan = 1;
2478 goto out;
2479 }
2480 }
2481 newmap = (struct MR_LD_VF_MAP *)
2482 ((unsigned char *)newmap +
2483 newmap->size);
2484 }
2485 if (!found && savedmap->policy[thisVf] !=
2486 MR_LD_ACCESS_HIDDEN) {
2487 doscan = 1;
2488 goto out;
2489 }
2490 savedmap = (struct MR_LD_VF_MAP *)
2491 ((unsigned char *)savedmap +
2492 savedmap->size);
2493 }
2494 }
2495 out:
2496 if (doscan) {
2497 dev_warn(&instance->pdev->dev, "SR-IOV: Got new LD/VF "
2498 "affiliation for scsi%d\n", instance->host->host_no);
2499 memcpy(instance->vf_affiliation, new_affiliation,
2500 new_affiliation->size);
2501 retval = 1;
2502 }
2503
2504 if (new_affiliation)
2505 dma_free_coherent(&instance->pdev->dev,
2506 (MAX_LOGICAL_DRIVES + 1) *
2507 sizeof(struct MR_LD_VF_AFFILIATION),
2508 new_affiliation, new_affiliation_h);
2509 megasas_return_cmd(instance, cmd);
2510
2511 return retval;
2512 }
2513
2514 /* This function will get the current SR-IOV LD/VF affiliation */
2515 static int megasas_get_ld_vf_affiliation(struct megasas_instance *instance,
2516 int initial)
2517 {
2518 int retval;
2519
2520 if (instance->PlasmaFW111)
2521 retval = megasas_get_ld_vf_affiliation_111(instance, initial);
2522 else
2523 retval = megasas_get_ld_vf_affiliation_12(instance, initial);
2524 return retval;
2525 }
2526
2527 /* This function will tell FW to start the SR-IOV heartbeat */
2528 int megasas_sriov_start_heartbeat(struct megasas_instance *instance,
2529 int initial)
2530 {
2531 struct megasas_cmd *cmd;
2532 struct megasas_dcmd_frame *dcmd;
2533 int retval = 0;
2534
2535 cmd = megasas_get_cmd(instance);
2536
2537 if (!cmd) {
2538 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_sriov_start_heartbeat: "
2539 "Failed to get cmd for scsi%d\n",
2540 instance->host->host_no);
2541 return -ENOMEM;
2542 }
2543
2544 dcmd = &cmd->frame->dcmd;
2545
2546 if (initial) {
2547 instance->hb_host_mem =
2548 dma_alloc_coherent(&instance->pdev->dev,
2549 sizeof(struct MR_CTRL_HB_HOST_MEM),
2550 &instance->hb_host_mem_h,
2551 GFP_KERNEL);
2552 if (!instance->hb_host_mem) {
2553 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate"
2554 " memory for heartbeat host memory for scsi%d\n",
2555 instance->host->host_no);
2556 retval = -ENOMEM;
2557 goto out;
2558 }
2559 }
2560
2561 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
2562
2563 dcmd->mbox.s[0] = cpu_to_le16(sizeof(struct MR_CTRL_HB_HOST_MEM));
2564 dcmd->cmd = MFI_CMD_DCMD;
2565 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
2566 dcmd->sge_count = 1;
2567 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_BOTH);
2568 dcmd->timeout = 0;
2569 dcmd->pad_0 = 0;
2570 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_CTRL_HB_HOST_MEM));
2571 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_SHARED_HOST_MEM_ALLOC);
2572
2573 megasas_set_dma_settings(instance, dcmd, instance->hb_host_mem_h,
2574 sizeof(struct MR_CTRL_HB_HOST_MEM));
2575
2576 dev_warn(&instance->pdev->dev, "SR-IOV: Starting heartbeat for scsi%d\n",
2577 instance->host->host_no);
2578
2579 if ((instance->adapter_type != MFI_SERIES) &&
2580 !instance->mask_interrupts)
2581 retval = megasas_issue_blocked_cmd(instance, cmd,
2582 MEGASAS_ROUTINE_WAIT_TIME_VF);
2583 else
2584 retval = megasas_issue_polled(instance, cmd);
2585
2586 if (retval) {
2587 dev_warn(&instance->pdev->dev, "SR-IOV: MR_DCMD_CTRL_SHARED_HOST"
2588 "_MEM_ALLOC DCMD %s for scsi%d\n",
2589 (dcmd->cmd_status == MFI_STAT_INVALID_STATUS) ?
2590 "timed out" : "failed", instance->host->host_no);
2591 retval = 1;
2592 }
2593
2594 out:
2595 megasas_return_cmd(instance, cmd);
2596
2597 return retval;
2598 }
2599
2600 /* Handler for SR-IOV heartbeat */
2601 static void megasas_sriov_heartbeat_handler(struct timer_list *t)
2602 {
2603 struct megasas_instance *instance =
2604 from_timer(instance, t, sriov_heartbeat_timer);
2605
2606 if (instance->hb_host_mem->HB.fwCounter !=
2607 instance->hb_host_mem->HB.driverCounter) {
2608 instance->hb_host_mem->HB.driverCounter =
2609 instance->hb_host_mem->HB.fwCounter;
2610 mod_timer(&instance->sriov_heartbeat_timer,
2611 jiffies + MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF);
2612 } else {
2613 dev_warn(&instance->pdev->dev, "SR-IOV: Heartbeat never "
2614 "completed for scsi%d\n", instance->host->host_no);
2615 schedule_work(&instance->work_init);
2616 }
2617 }
2618
2619 /**
2620 * megasas_wait_for_outstanding - Wait for all outstanding cmds
2621 * @instance: Adapter soft state
2622 *
2623 * This function waits for up to MEGASAS_RESET_WAIT_TIME seconds for FW to
2624 * complete all its outstanding commands. Returns error if one or more IOs
2625 * are pending after this time period. It also marks the controller dead.
2626 */
2627 static int megasas_wait_for_outstanding(struct megasas_instance *instance)
2628 {
2629 int i, sl, outstanding;
2630 u32 reset_index;
2631 u32 wait_time = MEGASAS_RESET_WAIT_TIME;
2632 unsigned long flags;
2633 struct list_head clist_local;
2634 struct megasas_cmd *reset_cmd;
2635 u32 fw_state;
2636
2637 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
2638 dev_info(&instance->pdev->dev, "%s:%d HBA is killed.\n",
2639 __func__, __LINE__);
2640 return FAILED;
2641 }
2642
2643 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) {
2644
2645 INIT_LIST_HEAD(&clist_local);
2646 spin_lock_irqsave(&instance->hba_lock, flags);
2647 list_splice_init(&instance->internal_reset_pending_q,
2648 &clist_local);
2649 spin_unlock_irqrestore(&instance->hba_lock, flags);
2650
2651 dev_notice(&instance->pdev->dev, "HBA reset wait ...\n");
2652 for (i = 0; i < wait_time; i++) {
2653 msleep(1000);
2654 if (atomic_read(&instance->adprecovery) == MEGASAS_HBA_OPERATIONAL)
2655 break;
2656 }
2657
2658 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) {
2659 dev_notice(&instance->pdev->dev, "reset: Stopping HBA.\n");
2660 atomic_set(&instance->adprecovery, MEGASAS_HW_CRITICAL_ERROR);
2661 return FAILED;
2662 }
2663
2664 reset_index = 0;
2665 while (!list_empty(&clist_local)) {
2666 reset_cmd = list_entry((&clist_local)->next,
2667 struct megasas_cmd, list);
2668 list_del_init(&reset_cmd->list);
2669 if (reset_cmd->scmd) {
2670 reset_cmd->scmd->result = DID_REQUEUE << 16;
2671 dev_notice(&instance->pdev->dev, "%d:%p reset [%02x]\n",
2672 reset_index, reset_cmd,
2673 reset_cmd->scmd->cmnd[0]);
2674
2675 reset_cmd->scmd->scsi_done(reset_cmd->scmd);
2676 megasas_return_cmd(instance, reset_cmd);
2677 } else if (reset_cmd->sync_cmd) {
2678 dev_notice(&instance->pdev->dev, "%p synch cmds"
2679 "reset queue\n",
2680 reset_cmd);
2681
2682 reset_cmd->cmd_status_drv = MFI_STAT_INVALID_STATUS;
2683 instance->instancet->fire_cmd(instance,
2684 reset_cmd->frame_phys_addr,
2685 0, instance->reg_set);
2686 } else {
2687 dev_notice(&instance->pdev->dev, "%p unexpected"
2688 "cmds lst\n",
2689 reset_cmd);
2690 }
2691 reset_index++;
2692 }
2693
2694 return SUCCESS;
2695 }
2696
2697 for (i = 0; i < resetwaittime; i++) {
2698 outstanding = atomic_read(&instance->fw_outstanding);
2699
2700 if (!outstanding)
2701 break;
2702
2703 if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) {
2704 dev_notice(&instance->pdev->dev, "[%2d]waiting for %d "
2705 "commands to complete\n",i,outstanding);
2706 /*
2707 * Call cmd completion routine. Cmd to be
2708 * be completed directly without depending on isr.
2709 */
2710 megasas_complete_cmd_dpc((unsigned long)instance);
2711 }
2712
2713 msleep(1000);
2714 }
2715
2716 i = 0;
2717 outstanding = atomic_read(&instance->fw_outstanding);
2718 fw_state = instance->instancet->read_fw_status_reg(instance) & MFI_STATE_MASK;
2719
2720 if ((!outstanding && (fw_state == MFI_STATE_OPERATIONAL)))
2721 goto no_outstanding;
2722
2723 if (instance->disableOnlineCtrlReset)
2724 goto kill_hba_and_failed;
2725 do {
2726 if ((fw_state == MFI_STATE_FAULT) || atomic_read(&instance->fw_outstanding)) {
2727 dev_info(&instance->pdev->dev,
2728 "%s:%d waiting_for_outstanding: before issue OCR. FW state = 0x%x, oustanding 0x%x\n",
2729 __func__, __LINE__, fw_state, atomic_read(&instance->fw_outstanding));
2730 if (i == 3)
2731 goto kill_hba_and_failed;
2732 megasas_do_ocr(instance);
2733
2734 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
2735 dev_info(&instance->pdev->dev, "%s:%d OCR failed and HBA is killed.\n",
2736 __func__, __LINE__);
2737 return FAILED;
2738 }
2739 dev_info(&instance->pdev->dev, "%s:%d waiting_for_outstanding: after issue OCR.\n",
2740 __func__, __LINE__);
2741
2742 for (sl = 0; sl < 10; sl++)
2743 msleep(500);
2744
2745 outstanding = atomic_read(&instance->fw_outstanding);
2746
2747 fw_state = instance->instancet->read_fw_status_reg(instance) & MFI_STATE_MASK;
2748 if ((!outstanding && (fw_state == MFI_STATE_OPERATIONAL)))
2749 goto no_outstanding;
2750 }
2751 i++;
2752 } while (i <= 3);
2753
2754 no_outstanding:
2755
2756 dev_info(&instance->pdev->dev, "%s:%d no more pending commands remain after reset handling.\n",
2757 __func__, __LINE__);
2758 return SUCCESS;
2759
2760 kill_hba_and_failed:
2761
2762 /* Reset not supported, kill adapter */
2763 dev_info(&instance->pdev->dev, "%s:%d killing adapter scsi%d"
2764 " disableOnlineCtrlReset %d fw_outstanding %d \n",
2765 __func__, __LINE__, instance->host->host_no, instance->disableOnlineCtrlReset,
2766 atomic_read(&instance->fw_outstanding));
2767 megasas_dump_pending_frames(instance);
2768 megaraid_sas_kill_hba(instance);
2769
2770 return FAILED;
2771 }
2772
2773 /**
2774 * megasas_generic_reset - Generic reset routine
2775 * @scmd: Mid-layer SCSI command
2776 *
2777 * This routine implements a generic reset handler for device, bus and host
2778 * reset requests. Device, bus and host specific reset handlers can use this
2779 * function after they do their specific tasks.
2780 */
2781 static int megasas_generic_reset(struct scsi_cmnd *scmd)
2782 {
2783 int ret_val;
2784 struct megasas_instance *instance;
2785
2786 instance = (struct megasas_instance *)scmd->device->host->hostdata;
2787
2788 scmd_printk(KERN_NOTICE, scmd, "megasas: RESET cmd=%x retries=%x\n",
2789 scmd->cmnd[0], scmd->retries);
2790
2791 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
2792 dev_err(&instance->pdev->dev, "cannot recover from previous reset failures\n");
2793 return FAILED;
2794 }
2795
2796 ret_val = megasas_wait_for_outstanding(instance);
2797 if (ret_val == SUCCESS)
2798 dev_notice(&instance->pdev->dev, "reset successful\n");
2799 else
2800 dev_err(&instance->pdev->dev, "failed to do reset\n");
2801
2802 return ret_val;
2803 }
2804
2805 /**
2806 * megasas_reset_timer - quiesce the adapter if required
2807 * @scmd: scsi cmnd
2808 *
2809 * Sets the FW busy flag and reduces the host->can_queue if the
2810 * cmd has not been completed within the timeout period.
2811 */
2812 static enum
2813 blk_eh_timer_return megasas_reset_timer(struct scsi_cmnd *scmd)
2814 {
2815 struct megasas_instance *instance;
2816 unsigned long flags;
2817
2818 if (time_after(jiffies, scmd->jiffies_at_alloc +
2819 (scmd_timeout * 2) * HZ)) {
2820 return BLK_EH_DONE;
2821 }
2822
2823 instance = (struct megasas_instance *)scmd->device->host->hostdata;
2824 if (!(instance->flag & MEGASAS_FW_BUSY)) {
2825 /* FW is busy, throttle IO */
2826 spin_lock_irqsave(instance->host->host_lock, flags);
2827
2828 instance->host->can_queue = instance->throttlequeuedepth;
2829 instance->last_time = jiffies;
2830 instance->flag |= MEGASAS_FW_BUSY;
2831
2832 spin_unlock_irqrestore(instance->host->host_lock, flags);
2833 }
2834 return BLK_EH_RESET_TIMER;
2835 }
2836
2837 /**
2838 * megasas_dump_frame - This function will dump MPT/MFI frame
2839 */
2840 static inline void
2841 megasas_dump_frame(void *mpi_request, int sz)
2842 {
2843 int i;
2844 __le32 *mfp = (__le32 *)mpi_request;
2845
2846 printk(KERN_INFO "IO request frame:\n\t");
2847 for (i = 0; i < sz / sizeof(__le32); i++) {
2848 if (i && ((i % 8) == 0))
2849 printk("\n\t");
2850 printk("%08x ", le32_to_cpu(mfp[i]));
2851 }
2852 printk("\n");
2853 }
2854
2855 /**
2856 * megasas_reset_bus_host - Bus & host reset handler entry point
2857 */
2858 static int megasas_reset_bus_host(struct scsi_cmnd *scmd)
2859 {
2860 int ret;
2861 struct megasas_instance *instance;
2862
2863 instance = (struct megasas_instance *)scmd->device->host->hostdata;
2864
2865 scmd_printk(KERN_INFO, scmd,
2866 "Controller reset is requested due to IO timeout\n"
2867 "SCSI command pointer: (%p)\t SCSI host state: %d\t"
2868 " SCSI host busy: %d\t FW outstanding: %d\n",
2869 scmd, scmd->device->host->shost_state,
2870 scsi_host_busy(scmd->device->host),
2871 atomic_read(&instance->fw_outstanding));
2872
2873 /*
2874 * First wait for all commands to complete
2875 */
2876 if (instance->adapter_type == MFI_SERIES) {
2877 ret = megasas_generic_reset(scmd);
2878 } else {
2879 struct megasas_cmd_fusion *cmd;
2880 cmd = (struct megasas_cmd_fusion *)scmd->SCp.ptr;
2881 if (cmd)
2882 megasas_dump_frame(cmd->io_request,
2883 MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE);
2884 ret = megasas_reset_fusion(scmd->device->host,
2885 SCSIIO_TIMEOUT_OCR);
2886 }
2887
2888 return ret;
2889 }
2890
2891 /**
2892 * megasas_task_abort - Issues task abort request to firmware
2893 * (supported only for fusion adapters)
2894 * @scmd: SCSI command pointer
2895 */
2896 static int megasas_task_abort(struct scsi_cmnd *scmd)
2897 {
2898 int ret;
2899 struct megasas_instance *instance;
2900
2901 instance = (struct megasas_instance *)scmd->device->host->hostdata;
2902
2903 if (instance->adapter_type != MFI_SERIES)
2904 ret = megasas_task_abort_fusion(scmd);
2905 else {
2906 sdev_printk(KERN_NOTICE, scmd->device, "TASK ABORT not supported\n");
2907 ret = FAILED;
2908 }
2909
2910 return ret;
2911 }
2912
2913 /**
2914 * megasas_reset_target: Issues target reset request to firmware
2915 * (supported only for fusion adapters)
2916 * @scmd: SCSI command pointer
2917 */
2918 static int megasas_reset_target(struct scsi_cmnd *scmd)
2919 {
2920 int ret;
2921 struct megasas_instance *instance;
2922
2923 instance = (struct megasas_instance *)scmd->device->host->hostdata;
2924
2925 if (instance->adapter_type != MFI_SERIES)
2926 ret = megasas_reset_target_fusion(scmd);
2927 else {
2928 sdev_printk(KERN_NOTICE, scmd->device, "TARGET RESET not supported\n");
2929 ret = FAILED;
2930 }
2931
2932 return ret;
2933 }
2934
2935 /**
2936 * megasas_bios_param - Returns disk geometry for a disk
2937 * @sdev: device handle
2938 * @bdev: block device
2939 * @capacity: drive capacity
2940 * @geom: geometry parameters
2941 */
2942 static int
2943 megasas_bios_param(struct scsi_device *sdev, struct block_device *bdev,
2944 sector_t capacity, int geom[])
2945 {
2946 int heads;
2947 int sectors;
2948 sector_t cylinders;
2949 unsigned long tmp;
2950
2951 /* Default heads (64) & sectors (32) */
2952 heads = 64;
2953 sectors = 32;
2954
2955 tmp = heads * sectors;
2956 cylinders = capacity;
2957
2958 sector_div(cylinders, tmp);
2959
2960 /*
2961 * Handle extended translation size for logical drives > 1Gb
2962 */
2963
2964 if (capacity >= 0x200000) {
2965 heads = 255;
2966 sectors = 63;
2967 tmp = heads*sectors;
2968 cylinders = capacity;
2969 sector_div(cylinders, tmp);
2970 }
2971
2972 geom[0] = heads;
2973 geom[1] = sectors;
2974 geom[2] = cylinders;
2975
2976 return 0;
2977 }
2978
2979 static void megasas_aen_polling(struct work_struct *work);
2980
2981 /**
2982 * megasas_service_aen - Processes an event notification
2983 * @instance: Adapter soft state
2984 * @cmd: AEN command completed by the ISR
2985 *
2986 * For AEN, driver sends a command down to FW that is held by the FW till an
2987 * event occurs. When an event of interest occurs, FW completes the command
2988 * that it was previously holding.
2989 *
2990 * This routines sends SIGIO signal to processes that have registered with the
2991 * driver for AEN.
2992 */
2993 static void
2994 megasas_service_aen(struct megasas_instance *instance, struct megasas_cmd *cmd)
2995 {
2996 unsigned long flags;
2997
2998 /*
2999 * Don't signal app if it is just an aborted previously registered aen
3000 */
3001 if ((!cmd->abort_aen) && (instance->unload == 0)) {
3002 spin_lock_irqsave(&poll_aen_lock, flags);
3003 megasas_poll_wait_aen = 1;
3004 spin_unlock_irqrestore(&poll_aen_lock, flags);
3005 wake_up(&megasas_poll_wait);
3006 kill_fasync(&megasas_async_queue, SIGIO, POLL_IN);
3007 }
3008 else
3009 cmd->abort_aen = 0;
3010
3011 instance->aen_cmd = NULL;
3012
3013 megasas_return_cmd(instance, cmd);
3014
3015 if ((instance->unload == 0) &&
3016 ((instance->issuepend_done == 1))) {
3017 struct megasas_aen_event *ev;
3018
3019 ev = kzalloc(sizeof(*ev), GFP_ATOMIC);
3020 if (!ev) {
3021 dev_err(&instance->pdev->dev, "megasas_service_aen: out of memory\n");
3022 } else {
3023 ev->instance = instance;
3024 instance->ev = ev;
3025 INIT_DELAYED_WORK(&ev->hotplug_work,
3026 megasas_aen_polling);
3027 schedule_delayed_work(&ev->hotplug_work, 0);
3028 }
3029 }
3030 }
3031
3032 static ssize_t
3033 megasas_fw_crash_buffer_store(struct device *cdev,
3034 struct device_attribute *attr, const char *buf, size_t count)
3035 {
3036 struct Scsi_Host *shost = class_to_shost(cdev);
3037 struct megasas_instance *instance =
3038 (struct megasas_instance *) shost->hostdata;
3039 int val = 0;
3040 unsigned long flags;
3041
3042 if (kstrtoint(buf, 0, &val) != 0)
3043 return -EINVAL;
3044
3045 spin_lock_irqsave(&instance->crashdump_lock, flags);
3046 instance->fw_crash_buffer_offset = val;
3047 spin_unlock_irqrestore(&instance->crashdump_lock, flags);
3048 return strlen(buf);
3049 }
3050
3051 static ssize_t
3052 megasas_fw_crash_buffer_show(struct device *cdev,
3053 struct device_attribute *attr, char *buf)
3054 {
3055 struct Scsi_Host *shost = class_to_shost(cdev);
3056 struct megasas_instance *instance =
3057 (struct megasas_instance *) shost->hostdata;
3058 u32 size;
3059 unsigned long buff_addr;
3060 unsigned long dmachunk = CRASH_DMA_BUF_SIZE;
3061 unsigned long src_addr;
3062 unsigned long flags;
3063 u32 buff_offset;
3064
3065 spin_lock_irqsave(&instance->crashdump_lock, flags);
3066 buff_offset = instance->fw_crash_buffer_offset;
3067 if (!instance->crash_dump_buf &&
3068 !((instance->fw_crash_state == AVAILABLE) ||
3069 (instance->fw_crash_state == COPYING))) {
3070 dev_err(&instance->pdev->dev,
3071 "Firmware crash dump is not available\n");
3072 spin_unlock_irqrestore(&instance->crashdump_lock, flags);
3073 return -EINVAL;
3074 }
3075
3076 buff_addr = (unsigned long) buf;
3077
3078 if (buff_offset > (instance->fw_crash_buffer_size * dmachunk)) {
3079 dev_err(&instance->pdev->dev,
3080 "Firmware crash dump offset is out of range\n");
3081 spin_unlock_irqrestore(&instance->crashdump_lock, flags);
3082 return 0;
3083 }
3084
3085 size = (instance->fw_crash_buffer_size * dmachunk) - buff_offset;
3086 size = (size >= PAGE_SIZE) ? (PAGE_SIZE - 1) : size;
3087
3088 src_addr = (unsigned long)instance->crash_buf[buff_offset / dmachunk] +
3089 (buff_offset % dmachunk);
3090 memcpy(buf, (void *)src_addr, size);
3091 spin_unlock_irqrestore(&instance->crashdump_lock, flags);
3092
3093 return size;
3094 }
3095
3096 static ssize_t
3097 megasas_fw_crash_buffer_size_show(struct device *cdev,
3098 struct device_attribute *attr, char *buf)
3099 {
3100 struct Scsi_Host *shost = class_to_shost(cdev);
3101 struct megasas_instance *instance =
3102 (struct megasas_instance *) shost->hostdata;
3103
3104 return snprintf(buf, PAGE_SIZE, "%ld\n", (unsigned long)
3105 ((instance->fw_crash_buffer_size) * 1024 * 1024)/PAGE_SIZE);
3106 }
3107
3108 static ssize_t
3109 megasas_fw_crash_state_store(struct device *cdev,
3110 struct device_attribute *attr, const char *buf, size_t count)
3111 {
3112 struct Scsi_Host *shost = class_to_shost(cdev);
3113 struct megasas_instance *instance =
3114 (struct megasas_instance *) shost->hostdata;
3115 int val = 0;
3116 unsigned long flags;
3117
3118 if (kstrtoint(buf, 0, &val) != 0)
3119 return -EINVAL;
3120
3121 if ((val <= AVAILABLE || val > COPY_ERROR)) {
3122 dev_err(&instance->pdev->dev, "application updates invalid "
3123 "firmware crash state\n");
3124 return -EINVAL;
3125 }
3126
3127 instance->fw_crash_state = val;
3128
3129 if ((val == COPIED) || (val == COPY_ERROR)) {
3130 spin_lock_irqsave(&instance->crashdump_lock, flags);
3131 megasas_free_host_crash_buffer(instance);
3132 spin_unlock_irqrestore(&instance->crashdump_lock, flags);
3133 if (val == COPY_ERROR)
3134 dev_info(&instance->pdev->dev, "application failed to "
3135 "copy Firmware crash dump\n");
3136 else
3137 dev_info(&instance->pdev->dev, "Firmware crash dump "
3138 "copied successfully\n");
3139 }
3140 return strlen(buf);
3141 }
3142
3143 static ssize_t
3144 megasas_fw_crash_state_show(struct device *cdev,
3145 struct device_attribute *attr, char *buf)
3146 {
3147 struct Scsi_Host *shost = class_to_shost(cdev);
3148 struct megasas_instance *instance =
3149 (struct megasas_instance *) shost->hostdata;
3150
3151 return snprintf(buf, PAGE_SIZE, "%d\n", instance->fw_crash_state);
3152 }
3153
3154 static ssize_t
3155 megasas_page_size_show(struct device *cdev,
3156 struct device_attribute *attr, char *buf)
3157 {
3158 return snprintf(buf, PAGE_SIZE, "%ld\n", (unsigned long)PAGE_SIZE - 1);
3159 }
3160
3161 static ssize_t
3162 megasas_ldio_outstanding_show(struct device *cdev, struct device_attribute *attr,
3163 char *buf)
3164 {
3165 struct Scsi_Host *shost = class_to_shost(cdev);
3166 struct megasas_instance *instance = (struct megasas_instance *)shost->hostdata;
3167
3168 return snprintf(buf, PAGE_SIZE, "%d\n", atomic_read(&instance->ldio_outstanding));
3169 }
3170
3171 static ssize_t
3172 megasas_fw_cmds_outstanding_show(struct device *cdev,
3173 struct device_attribute *attr, char *buf)
3174 {
3175 struct Scsi_Host *shost = class_to_shost(cdev);
3176 struct megasas_instance *instance = (struct megasas_instance *)shost->hostdata;
3177
3178 return snprintf(buf, PAGE_SIZE, "%d\n", atomic_read(&instance->fw_outstanding));
3179 }
3180
3181 static DEVICE_ATTR(fw_crash_buffer, S_IRUGO | S_IWUSR,
3182 megasas_fw_crash_buffer_show, megasas_fw_crash_buffer_store);
3183 static DEVICE_ATTR(fw_crash_buffer_size, S_IRUGO,
3184 megasas_fw_crash_buffer_size_show, NULL);
3185 static DEVICE_ATTR(fw_crash_state, S_IRUGO | S_IWUSR,
3186 megasas_fw_crash_state_show, megasas_fw_crash_state_store);
3187 static DEVICE_ATTR(page_size, S_IRUGO,
3188 megasas_page_size_show, NULL);
3189 static DEVICE_ATTR(ldio_outstanding, S_IRUGO,
3190 megasas_ldio_outstanding_show, NULL);
3191 static DEVICE_ATTR(fw_cmds_outstanding, S_IRUGO,
3192 megasas_fw_cmds_outstanding_show, NULL);
3193
3194 struct device_attribute *megaraid_host_attrs[] = {
3195 &dev_attr_fw_crash_buffer_size,
3196 &dev_attr_fw_crash_buffer,
3197 &dev_attr_fw_crash_state,
3198 &dev_attr_page_size,
3199 &dev_attr_ldio_outstanding,
3200 &dev_attr_fw_cmds_outstanding,
3201 NULL,
3202 };
3203
3204 /*
3205 * Scsi host template for megaraid_sas driver
3206 */
3207 static struct scsi_host_template megasas_template = {
3208
3209 .module = THIS_MODULE,
3210 .name = "Avago SAS based MegaRAID driver",
3211 .proc_name = "megaraid_sas",
3212 .slave_configure = megasas_slave_configure,
3213 .slave_alloc = megasas_slave_alloc,
3214 .slave_destroy = megasas_slave_destroy,
3215 .queuecommand = megasas_queue_command,
3216 .eh_target_reset_handler = megasas_reset_target,
3217 .eh_abort_handler = megasas_task_abort,
3218 .eh_host_reset_handler = megasas_reset_bus_host,
3219 .eh_timed_out = megasas_reset_timer,
3220 .shost_attrs = megaraid_host_attrs,
3221 .bios_param = megasas_bios_param,
3222 .change_queue_depth = scsi_change_queue_depth,
3223 .no_write_same = 1,
3224 };
3225
3226 /**
3227 * megasas_complete_int_cmd - Completes an internal command
3228 * @instance: Adapter soft state
3229 * @cmd: Command to be completed
3230 *
3231 * The megasas_issue_blocked_cmd() function waits for a command to complete
3232 * after it issues a command. This function wakes up that waiting routine by
3233 * calling wake_up() on the wait queue.
3234 */
3235 static void
3236 megasas_complete_int_cmd(struct megasas_instance *instance,
3237 struct megasas_cmd *cmd)
3238 {
3239 cmd->cmd_status_drv = cmd->frame->io.cmd_status;
3240 wake_up(&instance->int_cmd_wait_q);
3241 }
3242
3243 /**
3244 * megasas_complete_abort - Completes aborting a command
3245 * @instance: Adapter soft state
3246 * @cmd: Cmd that was issued to abort another cmd
3247 *
3248 * The megasas_issue_blocked_abort_cmd() function waits on abort_cmd_wait_q
3249 * after it issues an abort on a previously issued command. This function
3250 * wakes up all functions waiting on the same wait queue.
3251 */
3252 static void
3253 megasas_complete_abort(struct megasas_instance *instance,
3254 struct megasas_cmd *cmd)
3255 {
3256 if (cmd->sync_cmd) {
3257 cmd->sync_cmd = 0;
3258 cmd->cmd_status_drv = 0;
3259 wake_up(&instance->abort_cmd_wait_q);
3260 }
3261 }
3262
3263 /**
3264 * megasas_complete_cmd - Completes a command
3265 * @instance: Adapter soft state
3266 * @cmd: Command to be completed
3267 * @alt_status: If non-zero, use this value as status to
3268 * SCSI mid-layer instead of the value returned
3269 * by the FW. This should be used if caller wants
3270 * an alternate status (as in the case of aborted
3271 * commands)
3272 */
3273 void
3274 megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd,
3275 u8 alt_status)
3276 {
3277 int exception = 0;
3278 struct megasas_header *hdr = &cmd->frame->hdr;
3279 unsigned long flags;
3280 struct fusion_context *fusion = instance->ctrl_context;
3281 u32 opcode, status;
3282
3283 /* flag for the retry reset */
3284 cmd->retry_for_fw_reset = 0;
3285
3286 if (cmd->scmd)
3287 cmd->scmd->SCp.ptr = NULL;
3288
3289 switch (hdr->cmd) {
3290 case MFI_CMD_INVALID:
3291 /* Some older 1068 controller FW may keep a pended
3292 MR_DCMD_CTRL_EVENT_GET_INFO left over from the main kernel
3293 when booting the kdump kernel. Ignore this command to
3294 prevent a kernel panic on shutdown of the kdump kernel. */
3295 dev_warn(&instance->pdev->dev, "MFI_CMD_INVALID command "
3296 "completed\n");
3297 dev_warn(&instance->pdev->dev, "If you have a controller "
3298 "other than PERC5, please upgrade your firmware\n");
3299 break;
3300 case MFI_CMD_PD_SCSI_IO:
3301 case MFI_CMD_LD_SCSI_IO:
3302
3303 /*
3304 * MFI_CMD_PD_SCSI_IO and MFI_CMD_LD_SCSI_IO could have been
3305 * issued either through an IO path or an IOCTL path. If it
3306 * was via IOCTL, we will send it to internal completion.
3307 */
3308 if (cmd->sync_cmd) {
3309 cmd->sync_cmd = 0;
3310 megasas_complete_int_cmd(instance, cmd);
3311 break;
3312 }
3313 /* fall through */
3314
3315 case MFI_CMD_LD_READ:
3316 case MFI_CMD_LD_WRITE:
3317
3318 if (alt_status) {
3319 cmd->scmd->result = alt_status << 16;
3320 exception = 1;
3321 }
3322
3323 if (exception) {
3324
3325 atomic_dec(&instance->fw_outstanding);
3326
3327 scsi_dma_unmap(cmd->scmd);
3328 cmd->scmd->scsi_done(cmd->scmd);
3329 megasas_return_cmd(instance, cmd);
3330
3331 break;
3332 }
3333
3334 switch (hdr->cmd_status) {
3335
3336 case MFI_STAT_OK:
3337 cmd->scmd->result = DID_OK << 16;
3338 break;
3339
3340 case MFI_STAT_SCSI_IO_FAILED:
3341 case MFI_STAT_LD_INIT_IN_PROGRESS:
3342 cmd->scmd->result =
3343 (DID_ERROR << 16) | hdr->scsi_status;
3344 break;
3345
3346 case MFI_STAT_SCSI_DONE_WITH_ERROR:
3347
3348 cmd->scmd->result = (DID_OK << 16) | hdr->scsi_status;
3349
3350 if (hdr->scsi_status == SAM_STAT_CHECK_CONDITION) {
3351 memset(cmd->scmd->sense_buffer, 0,
3352 SCSI_SENSE_BUFFERSIZE);
3353 memcpy(cmd->scmd->sense_buffer, cmd->sense,
3354 hdr->sense_len);
3355
3356 cmd->scmd->result |= DRIVER_SENSE << 24;
3357 }
3358
3359 break;
3360
3361 case MFI_STAT_LD_OFFLINE:
3362 case MFI_STAT_DEVICE_NOT_FOUND:
3363 cmd->scmd->result = DID_BAD_TARGET << 16;
3364 break;
3365
3366 default:
3367 dev_printk(KERN_DEBUG, &instance->pdev->dev, "MFI FW status %#x\n",
3368 hdr->cmd_status);
3369 cmd->scmd->result = DID_ERROR << 16;
3370 break;
3371 }
3372
3373 atomic_dec(&instance->fw_outstanding);
3374
3375 scsi_dma_unmap(cmd->scmd);
3376 cmd->scmd->scsi_done(cmd->scmd);
3377 megasas_return_cmd(instance, cmd);
3378
3379 break;
3380
3381 case MFI_CMD_SMP:
3382 case MFI_CMD_STP:
3383 case MFI_CMD_NVME:
3384 megasas_complete_int_cmd(instance, cmd);
3385 break;
3386
3387 case MFI_CMD_DCMD:
3388 opcode = le32_to_cpu(cmd->frame->dcmd.opcode);
3389 /* Check for LD map update */
3390 if ((opcode == MR_DCMD_LD_MAP_GET_INFO)
3391 && (cmd->frame->dcmd.mbox.b[1] == 1)) {
3392 fusion->fast_path_io = 0;
3393 spin_lock_irqsave(instance->host->host_lock, flags);
3394 status = cmd->frame->hdr.cmd_status;
3395 instance->map_update_cmd = NULL;
3396 if (status != MFI_STAT_OK) {
3397 if (status != MFI_STAT_NOT_FOUND)
3398 dev_warn(&instance->pdev->dev, "map syncfailed, status = 0x%x\n",
3399 cmd->frame->hdr.cmd_status);
3400 else {
3401 megasas_return_cmd(instance, cmd);
3402 spin_unlock_irqrestore(
3403 instance->host->host_lock,
3404 flags);
3405 break;
3406 }
3407 }
3408
3409 megasas_return_cmd(instance, cmd);
3410
3411 /*
3412 * Set fast path IO to ZERO.
3413 * Validate Map will set proper value.
3414 * Meanwhile all IOs will go as LD IO.
3415 */
3416 if (status == MFI_STAT_OK &&
3417 (MR_ValidateMapInfo(instance, (instance->map_id + 1)))) {
3418 instance->map_id++;
3419 fusion->fast_path_io = 1;
3420 } else {
3421 fusion->fast_path_io = 0;
3422 }
3423
3424 megasas_sync_map_info(instance);
3425 spin_unlock_irqrestore(instance->host->host_lock,
3426 flags);
3427 break;
3428 }
3429 if (opcode == MR_DCMD_CTRL_EVENT_GET_INFO ||
3430 opcode == MR_DCMD_CTRL_EVENT_GET) {
3431 spin_lock_irqsave(&poll_aen_lock, flags);
3432 megasas_poll_wait_aen = 0;
3433 spin_unlock_irqrestore(&poll_aen_lock, flags);
3434 }
3435
3436 /* FW has an updated PD sequence */
3437 if ((opcode == MR_DCMD_SYSTEM_PD_MAP_GET_INFO) &&
3438 (cmd->frame->dcmd.mbox.b[0] == 1)) {
3439
3440 spin_lock_irqsave(instance->host->host_lock, flags);
3441 status = cmd->frame->hdr.cmd_status;
3442 instance->jbod_seq_cmd = NULL;
3443 megasas_return_cmd(instance, cmd);
3444
3445 if (status == MFI_STAT_OK) {
3446 instance->pd_seq_map_id++;
3447 /* Re-register a pd sync seq num cmd */
3448 if (megasas_sync_pd_seq_num(instance, true))
3449 instance->use_seqnum_jbod_fp = false;
3450 } else
3451 instance->use_seqnum_jbod_fp = false;
3452
3453 spin_unlock_irqrestore(instance->host->host_lock, flags);
3454 break;
3455 }
3456
3457 /*
3458 * See if got an event notification
3459 */
3460 if (opcode == MR_DCMD_CTRL_EVENT_WAIT)
3461 megasas_service_aen(instance, cmd);
3462 else
3463 megasas_complete_int_cmd(instance, cmd);
3464
3465 break;
3466
3467 case MFI_CMD_ABORT:
3468 /*
3469 * Cmd issued to abort another cmd returned
3470 */
3471 megasas_complete_abort(instance, cmd);
3472 break;
3473
3474 default:
3475 dev_info(&instance->pdev->dev, "Unknown command completed! [0x%X]\n",
3476 hdr->cmd);
3477 megasas_complete_int_cmd(instance, cmd);
3478 break;
3479 }
3480 }
3481
3482 /**
3483 * megasas_issue_pending_cmds_again - issue all pending cmds
3484 * in FW again because of the fw reset
3485 * @instance: Adapter soft state
3486 */
3487 static inline void
3488 megasas_issue_pending_cmds_again(struct megasas_instance *instance)
3489 {
3490 struct megasas_cmd *cmd;
3491 struct list_head clist_local;
3492 union megasas_evt_class_locale class_locale;
3493 unsigned long flags;
3494 u32 seq_num;
3495
3496 INIT_LIST_HEAD(&clist_local);
3497 spin_lock_irqsave(&instance->hba_lock, flags);
3498 list_splice_init(&instance->internal_reset_pending_q, &clist_local);
3499 spin_unlock_irqrestore(&instance->hba_lock, flags);
3500
3501 while (!list_empty(&clist_local)) {
3502 cmd = list_entry((&clist_local)->next,
3503 struct megasas_cmd, list);
3504 list_del_init(&cmd->list);
3505
3506 if (cmd->sync_cmd || cmd->scmd) {
3507 dev_notice(&instance->pdev->dev, "command %p, %p:%d"
3508 "detected to be pending while HBA reset\n",
3509 cmd, cmd->scmd, cmd->sync_cmd);
3510
3511 cmd->retry_for_fw_reset++;
3512
3513 if (cmd->retry_for_fw_reset == 3) {
3514 dev_notice(&instance->pdev->dev, "cmd %p, %p:%d"
3515 "was tried multiple times during reset."
3516 "Shutting down the HBA\n",
3517 cmd, cmd->scmd, cmd->sync_cmd);
3518 instance->instancet->disable_intr(instance);
3519 atomic_set(&instance->fw_reset_no_pci_access, 1);
3520 megaraid_sas_kill_hba(instance);
3521 return;
3522 }
3523 }
3524
3525 if (cmd->sync_cmd == 1) {
3526 if (cmd->scmd) {
3527 dev_notice(&instance->pdev->dev, "unexpected"
3528 "cmd attached to internal command!\n");
3529 }
3530 dev_notice(&instance->pdev->dev, "%p synchronous cmd"
3531 "on the internal reset queue,"
3532 "issue it again.\n", cmd);
3533 cmd->cmd_status_drv = MFI_STAT_INVALID_STATUS;
3534 instance->instancet->fire_cmd(instance,
3535 cmd->frame_phys_addr,
3536 0, instance->reg_set);
3537 } else if (cmd->scmd) {
3538 dev_notice(&instance->pdev->dev, "%p scsi cmd [%02x]"
3539 "detected on the internal queue, issue again.\n",
3540 cmd, cmd->scmd->cmnd[0]);
3541
3542 atomic_inc(&instance->fw_outstanding);
3543 instance->instancet->fire_cmd(instance,
3544 cmd->frame_phys_addr,
3545 cmd->frame_count-1, instance->reg_set);
3546 } else {
3547 dev_notice(&instance->pdev->dev, "%p unexpected cmd on the"
3548 "internal reset defer list while re-issue!!\n",
3549 cmd);
3550 }
3551 }
3552
3553 if (instance->aen_cmd) {
3554 dev_notice(&instance->pdev->dev, "aen_cmd in def process\n");
3555 megasas_return_cmd(instance, instance->aen_cmd);
3556
3557 instance->aen_cmd = NULL;
3558 }
3559
3560 /*
3561 * Initiate AEN (Asynchronous Event Notification)
3562 */
3563 seq_num = instance->last_seq_num;
3564 class_locale.members.reserved = 0;
3565 class_locale.members.locale = MR_EVT_LOCALE_ALL;
3566 class_locale.members.class = MR_EVT_CLASS_DEBUG;
3567
3568 megasas_register_aen(instance, seq_num, class_locale.word);
3569 }
3570
3571 /**
3572 * Move the internal reset pending commands to a deferred queue.
3573 *
3574 * We move the commands pending at internal reset time to a
3575 * pending queue. This queue would be flushed after successful
3576 * completion of the internal reset sequence. if the internal reset
3577 * did not complete in time, the kernel reset handler would flush
3578 * these commands.
3579 **/
3580 static void
3581 megasas_internal_reset_defer_cmds(struct megasas_instance *instance)
3582 {
3583 struct megasas_cmd *cmd;
3584 int i;
3585 u16 max_cmd = instance->max_fw_cmds;
3586 u32 defer_index;
3587 unsigned long flags;
3588
3589 defer_index = 0;
3590 spin_lock_irqsave(&instance->mfi_pool_lock, flags);
3591 for (i = 0; i < max_cmd; i++) {
3592 cmd = instance->cmd_list[i];
3593 if (cmd->sync_cmd == 1 || cmd->scmd) {
3594 dev_notice(&instance->pdev->dev, "moving cmd[%d]:%p:%d:%p"
3595 "on the defer queue as internal\n",
3596 defer_index, cmd, cmd->sync_cmd, cmd->scmd);
3597
3598 if (!list_empty(&cmd->list)) {
3599 dev_notice(&instance->pdev->dev, "ERROR while"
3600 " moving this cmd:%p, %d %p, it was"
3601 "discovered on some list?\n",
3602 cmd, cmd->sync_cmd, cmd->scmd);
3603
3604 list_del_init(&cmd->list);
3605 }
3606 defer_index++;
3607 list_add_tail(&cmd->list,
3608 &instance->internal_reset_pending_q);
3609 }
3610 }
3611 spin_unlock_irqrestore(&instance->mfi_pool_lock, flags);
3612 }
3613
3614
3615 static void
3616 process_fw_state_change_wq(struct work_struct *work)
3617 {
3618 struct megasas_instance *instance =
3619 container_of(work, struct megasas_instance, work_init);
3620 u32 wait;
3621 unsigned long flags;
3622
3623 if (atomic_read(&instance->adprecovery) != MEGASAS_ADPRESET_SM_INFAULT) {
3624 dev_notice(&instance->pdev->dev, "error, recovery st %x\n",
3625 atomic_read(&instance->adprecovery));
3626 return ;
3627 }
3628
3629 if (atomic_read(&instance->adprecovery) == MEGASAS_ADPRESET_SM_INFAULT) {
3630 dev_notice(&instance->pdev->dev, "FW detected to be in fault"
3631 "state, restarting it...\n");
3632
3633 instance->instancet->disable_intr(instance);
3634 atomic_set(&instance->fw_outstanding, 0);
3635
3636 atomic_set(&instance->fw_reset_no_pci_access, 1);
3637 instance->instancet->adp_reset(instance, instance->reg_set);
3638 atomic_set(&instance->fw_reset_no_pci_access, 0);
3639
3640 dev_notice(&instance->pdev->dev, "FW restarted successfully,"
3641 "initiating next stage...\n");
3642
3643 dev_notice(&instance->pdev->dev, "HBA recovery state machine,"
3644 "state 2 starting...\n");
3645
3646 /* waiting for about 20 second before start the second init */
3647 for (wait = 0; wait < 30; wait++) {
3648 msleep(1000);
3649 }
3650
3651 if (megasas_transition_to_ready(instance, 1)) {
3652 dev_notice(&instance->pdev->dev, "adapter not ready\n");
3653
3654 atomic_set(&instance->fw_reset_no_pci_access, 1);
3655 megaraid_sas_kill_hba(instance);
3656 return ;
3657 }
3658
3659 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS1064R) ||
3660 (instance->pdev->device == PCI_DEVICE_ID_DELL_PERC5) ||
3661 (instance->pdev->device == PCI_DEVICE_ID_LSI_VERDE_ZCR)
3662 ) {
3663 *instance->consumer = *instance->producer;
3664 } else {
3665 *instance->consumer = 0;
3666 *instance->producer = 0;
3667 }
3668
3669 megasas_issue_init_mfi(instance);
3670
3671 spin_lock_irqsave(&instance->hba_lock, flags);
3672 atomic_set(&instance->adprecovery, MEGASAS_HBA_OPERATIONAL);
3673 spin_unlock_irqrestore(&instance->hba_lock, flags);
3674 instance->instancet->enable_intr(instance);
3675
3676 megasas_issue_pending_cmds_again(instance);
3677 instance->issuepend_done = 1;
3678 }
3679 }
3680
3681 /**
3682 * megasas_deplete_reply_queue - Processes all completed commands
3683 * @instance: Adapter soft state
3684 * @alt_status: Alternate status to be returned to
3685 * SCSI mid-layer instead of the status
3686 * returned by the FW
3687 * Note: this must be called with hba lock held
3688 */
3689 static int
3690 megasas_deplete_reply_queue(struct megasas_instance *instance,
3691 u8 alt_status)
3692 {
3693 u32 mfiStatus;
3694 u32 fw_state;
3695
3696 if ((mfiStatus = instance->instancet->check_reset(instance,
3697 instance->reg_set)) == 1) {
3698 return IRQ_HANDLED;
3699 }
3700
3701 mfiStatus = instance->instancet->clear_intr(instance);
3702 if (mfiStatus == 0) {
3703 /* Hardware may not set outbound_intr_status in MSI-X mode */
3704 if (!instance->msix_vectors)
3705 return IRQ_NONE;
3706 }
3707
3708 instance->mfiStatus = mfiStatus;
3709
3710 if ((mfiStatus & MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE)) {
3711 fw_state = instance->instancet->read_fw_status_reg(
3712 instance) & MFI_STATE_MASK;
3713
3714 if (fw_state != MFI_STATE_FAULT) {
3715 dev_notice(&instance->pdev->dev, "fw state:%x\n",
3716 fw_state);
3717 }
3718
3719 if ((fw_state == MFI_STATE_FAULT) &&
3720 (instance->disableOnlineCtrlReset == 0)) {
3721 dev_notice(&instance->pdev->dev, "wait adp restart\n");
3722
3723 if ((instance->pdev->device ==
3724 PCI_DEVICE_ID_LSI_SAS1064R) ||
3725 (instance->pdev->device ==
3726 PCI_DEVICE_ID_DELL_PERC5) ||
3727 (instance->pdev->device ==
3728 PCI_DEVICE_ID_LSI_VERDE_ZCR)) {
3729
3730 *instance->consumer =
3731 cpu_to_le32(MEGASAS_ADPRESET_INPROG_SIGN);
3732 }
3733
3734
3735 instance->instancet->disable_intr(instance);
3736 atomic_set(&instance->adprecovery, MEGASAS_ADPRESET_SM_INFAULT);
3737 instance->issuepend_done = 0;
3738
3739 atomic_set(&instance->fw_outstanding, 0);
3740 megasas_internal_reset_defer_cmds(instance);
3741
3742 dev_notice(&instance->pdev->dev, "fwState=%x, stage:%d\n",
3743 fw_state, atomic_read(&instance->adprecovery));
3744
3745 schedule_work(&instance->work_init);
3746 return IRQ_HANDLED;
3747
3748 } else {
3749 dev_notice(&instance->pdev->dev, "fwstate:%x, dis_OCR=%x\n",
3750 fw_state, instance->disableOnlineCtrlReset);
3751 }
3752 }
3753
3754 tasklet_schedule(&instance->isr_tasklet);
3755 return IRQ_HANDLED;
3756 }
3757 /**
3758 * megasas_isr - isr entry point
3759 */
3760 static irqreturn_t megasas_isr(int irq, void *devp)
3761 {
3762 struct megasas_irq_context *irq_context = devp;
3763 struct megasas_instance *instance = irq_context->instance;
3764 unsigned long flags;
3765 irqreturn_t rc;
3766
3767 if (atomic_read(&instance->fw_reset_no_pci_access))
3768 return IRQ_HANDLED;
3769
3770 spin_lock_irqsave(&instance->hba_lock, flags);
3771 rc = megasas_deplete_reply_queue(instance, DID_OK);
3772 spin_unlock_irqrestore(&instance->hba_lock, flags);
3773
3774 return rc;
3775 }
3776
3777 /**
3778 * megasas_transition_to_ready - Move the FW to READY state
3779 * @instance: Adapter soft state
3780 *
3781 * During the initialization, FW passes can potentially be in any one of
3782 * several possible states. If the FW in operational, waiting-for-handshake
3783 * states, driver must take steps to bring it to ready state. Otherwise, it
3784 * has to wait for the ready state.
3785 */
3786 int
3787 megasas_transition_to_ready(struct megasas_instance *instance, int ocr)
3788 {
3789 int i;
3790 u8 max_wait;
3791 u32 fw_state;
3792 u32 cur_state;
3793 u32 abs_state, curr_abs_state;
3794
3795 abs_state = instance->instancet->read_fw_status_reg(instance);
3796 fw_state = abs_state & MFI_STATE_MASK;
3797
3798 if (fw_state != MFI_STATE_READY)
3799 dev_info(&instance->pdev->dev, "Waiting for FW to come to ready"
3800 " state\n");
3801
3802 while (fw_state != MFI_STATE_READY) {
3803
3804 switch (fw_state) {
3805
3806 case MFI_STATE_FAULT:
3807 dev_printk(KERN_DEBUG, &instance->pdev->dev, "FW in FAULT state!!\n");
3808 if (ocr) {
3809 max_wait = MEGASAS_RESET_WAIT_TIME;
3810 cur_state = MFI_STATE_FAULT;
3811 break;
3812 } else
3813 return -ENODEV;
3814
3815 case MFI_STATE_WAIT_HANDSHAKE:
3816 /*
3817 * Set the CLR bit in inbound doorbell
3818 */
3819 if ((instance->pdev->device ==
3820 PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
3821 (instance->pdev->device ==
3822 PCI_DEVICE_ID_LSI_SAS0071SKINNY) ||
3823 (instance->adapter_type != MFI_SERIES))
3824 writel(
3825 MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG,
3826 &instance->reg_set->doorbell);
3827 else
3828 writel(
3829 MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG,
3830 &instance->reg_set->inbound_doorbell);
3831
3832 max_wait = MEGASAS_RESET_WAIT_TIME;
3833 cur_state = MFI_STATE_WAIT_HANDSHAKE;
3834 break;
3835
3836 case MFI_STATE_BOOT_MESSAGE_PENDING:
3837 if ((instance->pdev->device ==
3838 PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
3839 (instance->pdev->device ==
3840 PCI_DEVICE_ID_LSI_SAS0071SKINNY) ||
3841 (instance->adapter_type != MFI_SERIES))
3842 writel(MFI_INIT_HOTPLUG,
3843 &instance->reg_set->doorbell);
3844 else
3845 writel(MFI_INIT_HOTPLUG,
3846 &instance->reg_set->inbound_doorbell);
3847
3848 max_wait = MEGASAS_RESET_WAIT_TIME;
3849 cur_state = MFI_STATE_BOOT_MESSAGE_PENDING;
3850 break;
3851
3852 case MFI_STATE_OPERATIONAL:
3853 /*
3854 * Bring it to READY state; assuming max wait 10 secs
3855 */
3856 instance->instancet->disable_intr(instance);
3857 if ((instance->pdev->device ==
3858 PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
3859 (instance->pdev->device ==
3860 PCI_DEVICE_ID_LSI_SAS0071SKINNY) ||
3861 (instance->adapter_type != MFI_SERIES)) {
3862 writel(MFI_RESET_FLAGS,
3863 &instance->reg_set->doorbell);
3864
3865 if (instance->adapter_type != MFI_SERIES) {
3866 for (i = 0; i < (10 * 1000); i += 20) {
3867 if (megasas_readl(
3868 instance,
3869 &instance->
3870 reg_set->
3871 doorbell) & 1)
3872 msleep(20);
3873 else
3874 break;
3875 }
3876 }
3877 } else
3878 writel(MFI_RESET_FLAGS,
3879 &instance->reg_set->inbound_doorbell);
3880
3881 max_wait = MEGASAS_RESET_WAIT_TIME;
3882 cur_state = MFI_STATE_OPERATIONAL;
3883 break;
3884
3885 case MFI_STATE_UNDEFINED:
3886 /*
3887 * This state should not last for more than 2 seconds
3888 */
3889 max_wait = MEGASAS_RESET_WAIT_TIME;
3890 cur_state = MFI_STATE_UNDEFINED;
3891 break;
3892
3893 case MFI_STATE_BB_INIT:
3894 max_wait = MEGASAS_RESET_WAIT_TIME;
3895 cur_state = MFI_STATE_BB_INIT;
3896 break;
3897
3898 case MFI_STATE_FW_INIT:
3899 max_wait = MEGASAS_RESET_WAIT_TIME;
3900 cur_state = MFI_STATE_FW_INIT;
3901 break;
3902
3903 case MFI_STATE_FW_INIT_2:
3904 max_wait = MEGASAS_RESET_WAIT_TIME;
3905 cur_state = MFI_STATE_FW_INIT_2;
3906 break;
3907
3908 case MFI_STATE_DEVICE_SCAN:
3909 max_wait = MEGASAS_RESET_WAIT_TIME;
3910 cur_state = MFI_STATE_DEVICE_SCAN;
3911 break;
3912
3913 case MFI_STATE_FLUSH_CACHE:
3914 max_wait = MEGASAS_RESET_WAIT_TIME;
3915 cur_state = MFI_STATE_FLUSH_CACHE;
3916 break;
3917
3918 default:
3919 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Unknown state 0x%x\n",
3920 fw_state);
3921 return -ENODEV;
3922 }
3923
3924 /*
3925 * The cur_state should not last for more than max_wait secs
3926 */
3927 for (i = 0; i < max_wait; i++) {
3928 curr_abs_state = instance->instancet->
3929 read_fw_status_reg(instance);
3930
3931 if (abs_state == curr_abs_state) {
3932 msleep(1000);
3933 } else
3934 break;
3935 }
3936
3937 /*
3938 * Return error if fw_state hasn't changed after max_wait
3939 */
3940 if (curr_abs_state == abs_state) {
3941 dev_printk(KERN_DEBUG, &instance->pdev->dev, "FW state [%d] hasn't changed "
3942 "in %d secs\n", fw_state, max_wait);
3943 return -ENODEV;
3944 }
3945
3946 abs_state = curr_abs_state;
3947 fw_state = curr_abs_state & MFI_STATE_MASK;
3948 }
3949 dev_info(&instance->pdev->dev, "FW now in Ready state\n");
3950
3951 return 0;
3952 }
3953
3954 /**
3955 * megasas_teardown_frame_pool - Destroy the cmd frame DMA pool
3956 * @instance: Adapter soft state
3957 */
3958 static void megasas_teardown_frame_pool(struct megasas_instance *instance)
3959 {
3960 int i;
3961 u16 max_cmd = instance->max_mfi_cmds;
3962 struct megasas_cmd *cmd;
3963
3964 if (!instance->frame_dma_pool)
3965 return;
3966
3967 /*
3968 * Return all frames to pool
3969 */
3970 for (i = 0; i < max_cmd; i++) {
3971
3972 cmd = instance->cmd_list[i];
3973
3974 if (cmd->frame)
3975 dma_pool_free(instance->frame_dma_pool, cmd->frame,
3976 cmd->frame_phys_addr);
3977
3978 if (cmd->sense)
3979 dma_pool_free(instance->sense_dma_pool, cmd->sense,
3980 cmd->sense_phys_addr);
3981 }
3982
3983 /*
3984 * Now destroy the pool itself
3985 */
3986 dma_pool_destroy(instance->frame_dma_pool);
3987 dma_pool_destroy(instance->sense_dma_pool);
3988
3989 instance->frame_dma_pool = NULL;
3990 instance->sense_dma_pool = NULL;
3991 }
3992
3993 /**
3994 * megasas_create_frame_pool - Creates DMA pool for cmd frames
3995 * @instance: Adapter soft state
3996 *
3997 * Each command packet has an embedded DMA memory buffer that is used for
3998 * filling MFI frame and the SG list that immediately follows the frame. This
3999 * function creates those DMA memory buffers for each command packet by using
4000 * PCI pool facility.
4001 */
4002 static int megasas_create_frame_pool(struct megasas_instance *instance)
4003 {
4004 int i;
4005 u16 max_cmd;
4006 u32 sge_sz;
4007 u32 frame_count;
4008 struct megasas_cmd *cmd;
4009
4010 max_cmd = instance->max_mfi_cmds;
4011
4012 /*
4013 * Size of our frame is 64 bytes for MFI frame, followed by max SG
4014 * elements and finally SCSI_SENSE_BUFFERSIZE bytes for sense buffer
4015 */
4016 sge_sz = (IS_DMA64) ? sizeof(struct megasas_sge64) :
4017 sizeof(struct megasas_sge32);
4018
4019 if (instance->flag_ieee)
4020 sge_sz = sizeof(struct megasas_sge_skinny);
4021
4022 /*
4023 * For MFI controllers.
4024 * max_num_sge = 60
4025 * max_sge_sz = 16 byte (sizeof megasas_sge_skinny)
4026 * Total 960 byte (15 MFI frame of 64 byte)
4027 *
4028 * Fusion adapter require only 3 extra frame.
4029 * max_num_sge = 16 (defined as MAX_IOCTL_SGE)
4030 * max_sge_sz = 12 byte (sizeof megasas_sge64)
4031 * Total 192 byte (3 MFI frame of 64 byte)
4032 */
4033 frame_count = (instance->adapter_type == MFI_SERIES) ?
4034 (15 + 1) : (3 + 1);
4035 instance->mfi_frame_size = MEGAMFI_FRAME_SIZE * frame_count;
4036 /*
4037 * Use DMA pool facility provided by PCI layer
4038 */
4039 instance->frame_dma_pool = dma_pool_create("megasas frame pool",
4040 &instance->pdev->dev,
4041 instance->mfi_frame_size, 256, 0);
4042
4043 if (!instance->frame_dma_pool) {
4044 dev_printk(KERN_DEBUG, &instance->pdev->dev, "failed to setup frame pool\n");
4045 return -ENOMEM;
4046 }
4047
4048 instance->sense_dma_pool = dma_pool_create("megasas sense pool",
4049 &instance->pdev->dev, 128,
4050 4, 0);
4051
4052 if (!instance->sense_dma_pool) {
4053 dev_printk(KERN_DEBUG, &instance->pdev->dev, "failed to setup sense pool\n");
4054
4055 dma_pool_destroy(instance->frame_dma_pool);
4056 instance->frame_dma_pool = NULL;
4057
4058 return -ENOMEM;
4059 }
4060
4061 /*
4062 * Allocate and attach a frame to each of the commands in cmd_list.
4063 * By making cmd->index as the context instead of the &cmd, we can
4064 * always use 32bit context regardless of the architecture
4065 */
4066 for (i = 0; i < max_cmd; i++) {
4067
4068 cmd = instance->cmd_list[i];
4069
4070 cmd->frame = dma_pool_zalloc(instance->frame_dma_pool,
4071 GFP_KERNEL, &cmd->frame_phys_addr);
4072
4073 cmd->sense = dma_pool_alloc(instance->sense_dma_pool,
4074 GFP_KERNEL, &cmd->sense_phys_addr);
4075
4076 /*
4077 * megasas_teardown_frame_pool() takes care of freeing
4078 * whatever has been allocated
4079 */
4080 if (!cmd->frame || !cmd->sense) {
4081 dev_printk(KERN_DEBUG, &instance->pdev->dev, "dma_pool_alloc failed\n");
4082 megasas_teardown_frame_pool(instance);
4083 return -ENOMEM;
4084 }
4085
4086 cmd->frame->io.context = cpu_to_le32(cmd->index);
4087 cmd->frame->io.pad_0 = 0;
4088 if ((instance->adapter_type == MFI_SERIES) && reset_devices)
4089 cmd->frame->hdr.cmd = MFI_CMD_INVALID;
4090 }
4091
4092 return 0;
4093 }
4094
4095 /**
4096 * megasas_free_cmds - Free all the cmds in the free cmd pool
4097 * @instance: Adapter soft state
4098 */
4099 void megasas_free_cmds(struct megasas_instance *instance)
4100 {
4101 int i;
4102
4103 /* First free the MFI frame pool */
4104 megasas_teardown_frame_pool(instance);
4105
4106 /* Free all the commands in the cmd_list */
4107 for (i = 0; i < instance->max_mfi_cmds; i++)
4108
4109 kfree(instance->cmd_list[i]);
4110
4111 /* Free the cmd_list buffer itself */
4112 kfree(instance->cmd_list);
4113 instance->cmd_list = NULL;
4114
4115 INIT_LIST_HEAD(&instance->cmd_pool);
4116 }
4117
4118 /**
4119 * megasas_alloc_cmds - Allocates the command packets
4120 * @instance: Adapter soft state
4121 *
4122 * Each command that is issued to the FW, whether IO commands from the OS or
4123 * internal commands like IOCTLs, are wrapped in local data structure called
4124 * megasas_cmd. The frame embedded in this megasas_cmd is actually issued to
4125 * the FW.
4126 *
4127 * Each frame has a 32-bit field called context (tag). This context is used
4128 * to get back the megasas_cmd from the frame when a frame gets completed in
4129 * the ISR. Typically the address of the megasas_cmd itself would be used as
4130 * the context. But we wanted to keep the differences between 32 and 64 bit
4131 * systems to the mininum. We always use 32 bit integers for the context. In
4132 * this driver, the 32 bit values are the indices into an array cmd_list.
4133 * This array is used only to look up the megasas_cmd given the context. The
4134 * free commands themselves are maintained in a linked list called cmd_pool.
4135 */
4136 int megasas_alloc_cmds(struct megasas_instance *instance)
4137 {
4138 int i;
4139 int j;
4140 u16 max_cmd;
4141 struct megasas_cmd *cmd;
4142
4143 max_cmd = instance->max_mfi_cmds;
4144
4145 /*
4146 * instance->cmd_list is an array of struct megasas_cmd pointers.
4147 * Allocate the dynamic array first and then allocate individual
4148 * commands.
4149 */
4150 instance->cmd_list = kcalloc(max_cmd, sizeof(struct megasas_cmd*), GFP_KERNEL);
4151
4152 if (!instance->cmd_list) {
4153 dev_printk(KERN_DEBUG, &instance->pdev->dev, "out of memory\n");
4154 return -ENOMEM;
4155 }
4156
4157 memset(instance->cmd_list, 0, sizeof(struct megasas_cmd *) *max_cmd);
4158
4159 for (i = 0; i < max_cmd; i++) {
4160 instance->cmd_list[i] = kmalloc(sizeof(struct megasas_cmd),
4161 GFP_KERNEL);
4162
4163 if (!instance->cmd_list[i]) {
4164
4165 for (j = 0; j < i; j++)
4166 kfree(instance->cmd_list[j]);
4167
4168 kfree(instance->cmd_list);
4169 instance->cmd_list = NULL;
4170
4171 return -ENOMEM;
4172 }
4173 }
4174
4175 for (i = 0; i < max_cmd; i++) {
4176 cmd = instance->cmd_list[i];
4177 memset(cmd, 0, sizeof(struct megasas_cmd));
4178 cmd->index = i;
4179 cmd->scmd = NULL;
4180 cmd->instance = instance;
4181
4182 list_add_tail(&cmd->list, &instance->cmd_pool);
4183 }
4184
4185 /*
4186 * Create a frame pool and assign one frame to each cmd
4187 */
4188 if (megasas_create_frame_pool(instance)) {
4189 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Error creating frame DMA pool\n");
4190 megasas_free_cmds(instance);
4191 }
4192
4193 return 0;
4194 }
4195
4196 /*
4197 * dcmd_timeout_ocr_possible - Check if OCR is possible based on Driver/FW state.
4198 * @instance: Adapter soft state
4199 *
4200 * Return 0 for only Fusion adapter, if driver load/unload is not in progress
4201 * or FW is not under OCR.
4202 */
4203 inline int
4204 dcmd_timeout_ocr_possible(struct megasas_instance *instance) {
4205
4206 if (instance->adapter_type == MFI_SERIES)
4207 return KILL_ADAPTER;
4208 else if (instance->unload ||
4209 test_bit(MEGASAS_FUSION_IN_RESET, &instance->reset_flags))
4210 return IGNORE_TIMEOUT;
4211 else
4212 return INITIATE_OCR;
4213 }
4214
4215 static void
4216 megasas_get_pd_info(struct megasas_instance *instance, struct scsi_device *sdev)
4217 {
4218 int ret;
4219 struct megasas_cmd *cmd;
4220 struct megasas_dcmd_frame *dcmd;
4221
4222 struct MR_PRIV_DEVICE *mr_device_priv_data;
4223 u16 device_id = 0;
4224
4225 device_id = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + sdev->id;
4226 cmd = megasas_get_cmd(instance);
4227
4228 if (!cmd) {
4229 dev_err(&instance->pdev->dev, "Failed to get cmd %s\n", __func__);
4230 return;
4231 }
4232
4233 dcmd = &cmd->frame->dcmd;
4234
4235 memset(instance->pd_info, 0, sizeof(*instance->pd_info));
4236 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
4237
4238 dcmd->mbox.s[0] = cpu_to_le16(device_id);
4239 dcmd->cmd = MFI_CMD_DCMD;
4240 dcmd->cmd_status = 0xFF;
4241 dcmd->sge_count = 1;
4242 dcmd->flags = MFI_FRAME_DIR_READ;
4243 dcmd->timeout = 0;
4244 dcmd->pad_0 = 0;
4245 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_PD_INFO));
4246 dcmd->opcode = cpu_to_le32(MR_DCMD_PD_GET_INFO);
4247
4248 megasas_set_dma_settings(instance, dcmd, instance->pd_info_h,
4249 sizeof(struct MR_PD_INFO));
4250
4251 if ((instance->adapter_type != MFI_SERIES) &&
4252 !instance->mask_interrupts)
4253 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS);
4254 else
4255 ret = megasas_issue_polled(instance, cmd);
4256
4257 switch (ret) {
4258 case DCMD_SUCCESS:
4259 mr_device_priv_data = sdev->hostdata;
4260 le16_to_cpus((u16 *)&instance->pd_info->state.ddf.pdType);
4261 mr_device_priv_data->interface_type =
4262 instance->pd_info->state.ddf.pdType.intf;
4263 break;
4264
4265 case DCMD_TIMEOUT:
4266
4267 switch (dcmd_timeout_ocr_possible(instance)) {
4268 case INITIATE_OCR:
4269 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
4270 megasas_reset_fusion(instance->host,
4271 MFI_IO_TIMEOUT_OCR);
4272 break;
4273 case KILL_ADAPTER:
4274 megaraid_sas_kill_hba(instance);
4275 break;
4276 case IGNORE_TIMEOUT:
4277 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n",
4278 __func__, __LINE__);
4279 break;
4280 }
4281
4282 break;
4283 }
4284
4285 if (ret != DCMD_TIMEOUT)
4286 megasas_return_cmd(instance, cmd);
4287
4288 return;
4289 }
4290 /*
4291 * megasas_get_pd_list_info - Returns FW's pd_list structure
4292 * @instance: Adapter soft state
4293 * @pd_list: pd_list structure
4294 *
4295 * Issues an internal command (DCMD) to get the FW's controller PD
4296 * list structure. This information is mainly used to find out SYSTEM
4297 * supported by the FW.
4298 */
4299 static int
4300 megasas_get_pd_list(struct megasas_instance *instance)
4301 {
4302 int ret = 0, pd_index = 0;
4303 struct megasas_cmd *cmd;
4304 struct megasas_dcmd_frame *dcmd;
4305 struct MR_PD_LIST *ci;
4306 struct MR_PD_ADDRESS *pd_addr;
4307 dma_addr_t ci_h = 0;
4308
4309 if (instance->pd_list_not_supported) {
4310 dev_info(&instance->pdev->dev, "MR_DCMD_PD_LIST_QUERY "
4311 "not supported by firmware\n");
4312 return ret;
4313 }
4314
4315 ci = instance->pd_list_buf;
4316 ci_h = instance->pd_list_buf_h;
4317
4318 cmd = megasas_get_cmd(instance);
4319
4320 if (!cmd) {
4321 dev_printk(KERN_DEBUG, &instance->pdev->dev, "(get_pd_list): Failed to get cmd\n");
4322 return -ENOMEM;
4323 }
4324
4325 dcmd = &cmd->frame->dcmd;
4326
4327 memset(ci, 0, sizeof(*ci));
4328 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
4329
4330 dcmd->mbox.b[0] = MR_PD_QUERY_TYPE_EXPOSED_TO_HOST;
4331 dcmd->mbox.b[1] = 0;
4332 dcmd->cmd = MFI_CMD_DCMD;
4333 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
4334 dcmd->sge_count = 1;
4335 dcmd->flags = MFI_FRAME_DIR_READ;
4336 dcmd->timeout = 0;
4337 dcmd->pad_0 = 0;
4338 dcmd->data_xfer_len = cpu_to_le32(MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST));
4339 dcmd->opcode = cpu_to_le32(MR_DCMD_PD_LIST_QUERY);
4340
4341 megasas_set_dma_settings(instance, dcmd, instance->pd_list_buf_h,
4342 (MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST)));
4343
4344 if ((instance->adapter_type != MFI_SERIES) &&
4345 !instance->mask_interrupts)
4346 ret = megasas_issue_blocked_cmd(instance, cmd,
4347 MFI_IO_TIMEOUT_SECS);
4348 else
4349 ret = megasas_issue_polled(instance, cmd);
4350
4351 switch (ret) {
4352 case DCMD_FAILED:
4353 dev_info(&instance->pdev->dev, "MR_DCMD_PD_LIST_QUERY "
4354 "failed/not supported by firmware\n");
4355
4356 if (instance->adapter_type != MFI_SERIES)
4357 megaraid_sas_kill_hba(instance);
4358 else
4359 instance->pd_list_not_supported = 1;
4360 break;
4361 case DCMD_TIMEOUT:
4362
4363 switch (dcmd_timeout_ocr_possible(instance)) {
4364 case INITIATE_OCR:
4365 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
4366 /*
4367 * DCMD failed from AEN path.
4368 * AEN path already hold reset_mutex to avoid PCI access
4369 * while OCR is in progress.
4370 */
4371 mutex_unlock(&instance->reset_mutex);
4372 megasas_reset_fusion(instance->host,
4373 MFI_IO_TIMEOUT_OCR);
4374 mutex_lock(&instance->reset_mutex);
4375 break;
4376 case KILL_ADAPTER:
4377 megaraid_sas_kill_hba(instance);
4378 break;
4379 case IGNORE_TIMEOUT:
4380 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d \n",
4381 __func__, __LINE__);
4382 break;
4383 }
4384
4385 break;
4386
4387 case DCMD_SUCCESS:
4388 pd_addr = ci->addr;
4389
4390 if ((le32_to_cpu(ci->count) >
4391 (MEGASAS_MAX_PD_CHANNELS * MEGASAS_MAX_DEV_PER_CHANNEL)))
4392 break;
4393
4394 memset(instance->local_pd_list, 0,
4395 MEGASAS_MAX_PD * sizeof(struct megasas_pd_list));
4396
4397 for (pd_index = 0; pd_index < le32_to_cpu(ci->count); pd_index++) {
4398 instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].tid =
4399 le16_to_cpu(pd_addr->deviceId);
4400 instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].driveType =
4401 pd_addr->scsiDevType;
4402 instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].driveState =
4403 MR_PD_STATE_SYSTEM;
4404 pd_addr++;
4405 }
4406
4407 memcpy(instance->pd_list, instance->local_pd_list,
4408 sizeof(instance->pd_list));
4409 break;
4410
4411 }
4412
4413 if (ret != DCMD_TIMEOUT)
4414 megasas_return_cmd(instance, cmd);
4415
4416 return ret;
4417 }
4418
4419 /*
4420 * megasas_get_ld_list_info - Returns FW's ld_list structure
4421 * @instance: Adapter soft state
4422 * @ld_list: ld_list structure
4423 *
4424 * Issues an internal command (DCMD) to get the FW's controller PD
4425 * list structure. This information is mainly used to find out SYSTEM
4426 * supported by the FW.
4427 */
4428 static int
4429 megasas_get_ld_list(struct megasas_instance *instance)
4430 {
4431 int ret = 0, ld_index = 0, ids = 0;
4432 struct megasas_cmd *cmd;
4433 struct megasas_dcmd_frame *dcmd;
4434 struct MR_LD_LIST *ci;
4435 dma_addr_t ci_h = 0;
4436 u32 ld_count;
4437
4438 ci = instance->ld_list_buf;
4439 ci_h = instance->ld_list_buf_h;
4440
4441 cmd = megasas_get_cmd(instance);
4442
4443 if (!cmd) {
4444 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_list: Failed to get cmd\n");
4445 return -ENOMEM;
4446 }
4447
4448 dcmd = &cmd->frame->dcmd;
4449
4450 memset(ci, 0, sizeof(*ci));
4451 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
4452
4453 if (instance->supportmax256vd)
4454 dcmd->mbox.b[0] = 1;
4455 dcmd->cmd = MFI_CMD_DCMD;
4456 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
4457 dcmd->sge_count = 1;
4458 dcmd->flags = MFI_FRAME_DIR_READ;
4459 dcmd->timeout = 0;
4460 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_LD_LIST));
4461 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_GET_LIST);
4462 dcmd->pad_0 = 0;
4463
4464 megasas_set_dma_settings(instance, dcmd, ci_h,
4465 sizeof(struct MR_LD_LIST));
4466
4467 if ((instance->adapter_type != MFI_SERIES) &&
4468 !instance->mask_interrupts)
4469 ret = megasas_issue_blocked_cmd(instance, cmd,
4470 MFI_IO_TIMEOUT_SECS);
4471 else
4472 ret = megasas_issue_polled(instance, cmd);
4473
4474 ld_count = le32_to_cpu(ci->ldCount);
4475
4476 switch (ret) {
4477 case DCMD_FAILED:
4478 megaraid_sas_kill_hba(instance);
4479 break;
4480 case DCMD_TIMEOUT:
4481
4482 switch (dcmd_timeout_ocr_possible(instance)) {
4483 case INITIATE_OCR:
4484 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
4485 /*
4486 * DCMD failed from AEN path.
4487 * AEN path already hold reset_mutex to avoid PCI access
4488 * while OCR is in progress.
4489 */
4490 mutex_unlock(&instance->reset_mutex);
4491 megasas_reset_fusion(instance->host,
4492 MFI_IO_TIMEOUT_OCR);
4493 mutex_lock(&instance->reset_mutex);
4494 break;
4495 case KILL_ADAPTER:
4496 megaraid_sas_kill_hba(instance);
4497 break;
4498 case IGNORE_TIMEOUT:
4499 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n",
4500 __func__, __LINE__);
4501 break;
4502 }
4503
4504 break;
4505
4506 case DCMD_SUCCESS:
4507 if (ld_count > instance->fw_supported_vd_count)
4508 break;
4509
4510 memset(instance->ld_ids, 0xff, MAX_LOGICAL_DRIVES_EXT);
4511
4512 for (ld_index = 0; ld_index < ld_count; ld_index++) {
4513 if (ci->ldList[ld_index].state != 0) {
4514 ids = ci->ldList[ld_index].ref.targetId;
4515 instance->ld_ids[ids] = ci->ldList[ld_index].ref.targetId;
4516 }
4517 }
4518
4519 break;
4520 }
4521
4522 if (ret != DCMD_TIMEOUT)
4523 megasas_return_cmd(instance, cmd);
4524
4525 return ret;
4526 }
4527
4528 /**
4529 * megasas_ld_list_query - Returns FW's ld_list structure
4530 * @instance: Adapter soft state
4531 * @ld_list: ld_list structure
4532 *
4533 * Issues an internal command (DCMD) to get the FW's controller PD
4534 * list structure. This information is mainly used to find out SYSTEM
4535 * supported by the FW.
4536 */
4537 static int
4538 megasas_ld_list_query(struct megasas_instance *instance, u8 query_type)
4539 {
4540 int ret = 0, ld_index = 0, ids = 0;
4541 struct megasas_cmd *cmd;
4542 struct megasas_dcmd_frame *dcmd;
4543 struct MR_LD_TARGETID_LIST *ci;
4544 dma_addr_t ci_h = 0;
4545 u32 tgtid_count;
4546
4547 ci = instance->ld_targetid_list_buf;
4548 ci_h = instance->ld_targetid_list_buf_h;
4549
4550 cmd = megasas_get_cmd(instance);
4551
4552 if (!cmd) {
4553 dev_warn(&instance->pdev->dev,
4554 "megasas_ld_list_query: Failed to get cmd\n");
4555 return -ENOMEM;
4556 }
4557
4558 dcmd = &cmd->frame->dcmd;
4559
4560 memset(ci, 0, sizeof(*ci));
4561 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
4562
4563 dcmd->mbox.b[0] = query_type;
4564 if (instance->supportmax256vd)
4565 dcmd->mbox.b[2] = 1;
4566
4567 dcmd->cmd = MFI_CMD_DCMD;
4568 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
4569 dcmd->sge_count = 1;
4570 dcmd->flags = MFI_FRAME_DIR_READ;
4571 dcmd->timeout = 0;
4572 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_LD_TARGETID_LIST));
4573 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_LIST_QUERY);
4574 dcmd->pad_0 = 0;
4575
4576 megasas_set_dma_settings(instance, dcmd, ci_h,
4577 sizeof(struct MR_LD_TARGETID_LIST));
4578
4579 if ((instance->adapter_type != MFI_SERIES) &&
4580 !instance->mask_interrupts)
4581 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS);
4582 else
4583 ret = megasas_issue_polled(instance, cmd);
4584
4585 switch (ret) {
4586 case DCMD_FAILED:
4587 dev_info(&instance->pdev->dev,
4588 "DCMD not supported by firmware - %s %d\n",
4589 __func__, __LINE__);
4590 ret = megasas_get_ld_list(instance);
4591 break;
4592 case DCMD_TIMEOUT:
4593 switch (dcmd_timeout_ocr_possible(instance)) {
4594 case INITIATE_OCR:
4595 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
4596 /*
4597 * DCMD failed from AEN path.
4598 * AEN path already hold reset_mutex to avoid PCI access
4599 * while OCR is in progress.
4600 */
4601 mutex_unlock(&instance->reset_mutex);
4602 megasas_reset_fusion(instance->host,
4603 MFI_IO_TIMEOUT_OCR);
4604 mutex_lock(&instance->reset_mutex);
4605 break;
4606 case KILL_ADAPTER:
4607 megaraid_sas_kill_hba(instance);
4608 break;
4609 case IGNORE_TIMEOUT:
4610 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n",
4611 __func__, __LINE__);
4612 break;
4613 }
4614
4615 break;
4616 case DCMD_SUCCESS:
4617 tgtid_count = le32_to_cpu(ci->count);
4618
4619 if ((tgtid_count > (instance->fw_supported_vd_count)))
4620 break;
4621
4622 memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS);
4623 for (ld_index = 0; ld_index < tgtid_count; ld_index++) {
4624 ids = ci->targetId[ld_index];
4625 instance->ld_ids[ids] = ci->targetId[ld_index];
4626 }
4627
4628 break;
4629 }
4630
4631 if (ret != DCMD_TIMEOUT)
4632 megasas_return_cmd(instance, cmd);
4633
4634 return ret;
4635 }
4636
4637 /*
4638 * megasas_update_ext_vd_details : Update details w.r.t Extended VD
4639 * instance : Controller's instance
4640 */
4641 static void megasas_update_ext_vd_details(struct megasas_instance *instance)
4642 {
4643 struct fusion_context *fusion;
4644 u32 ventura_map_sz = 0;
4645
4646 fusion = instance->ctrl_context;
4647 /* For MFI based controllers return dummy success */
4648 if (!fusion)
4649 return;
4650
4651 instance->supportmax256vd =
4652 instance->ctrl_info_buf->adapterOperations3.supportMaxExtLDs;
4653 /* Below is additional check to address future FW enhancement */
4654 if (instance->ctrl_info_buf->max_lds > 64)
4655 instance->supportmax256vd = 1;
4656
4657 instance->drv_supported_vd_count = MEGASAS_MAX_LD_CHANNELS
4658 * MEGASAS_MAX_DEV_PER_CHANNEL;
4659 instance->drv_supported_pd_count = MEGASAS_MAX_PD_CHANNELS
4660 * MEGASAS_MAX_DEV_PER_CHANNEL;
4661 if (instance->supportmax256vd) {
4662 instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES_EXT;
4663 instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES;
4664 } else {
4665 instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES;
4666 instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES;
4667 }
4668
4669 dev_info(&instance->pdev->dev,
4670 "FW provided supportMaxExtLDs: %d\tmax_lds: %d\n",
4671 instance->ctrl_info_buf->adapterOperations3.supportMaxExtLDs ? 1 : 0,
4672 instance->ctrl_info_buf->max_lds);
4673
4674 if (instance->max_raid_mapsize) {
4675 ventura_map_sz = instance->max_raid_mapsize *
4676 MR_MIN_MAP_SIZE; /* 64k */
4677 fusion->current_map_sz = ventura_map_sz;
4678 fusion->max_map_sz = ventura_map_sz;
4679 } else {
4680 fusion->old_map_sz = sizeof(struct MR_FW_RAID_MAP) +
4681 (sizeof(struct MR_LD_SPAN_MAP) *
4682 (instance->fw_supported_vd_count - 1));
4683 fusion->new_map_sz = sizeof(struct MR_FW_RAID_MAP_EXT);
4684
4685 fusion->max_map_sz =
4686 max(fusion->old_map_sz, fusion->new_map_sz);
4687
4688 if (instance->supportmax256vd)
4689 fusion->current_map_sz = fusion->new_map_sz;
4690 else
4691 fusion->current_map_sz = fusion->old_map_sz;
4692 }
4693 /* irrespective of FW raid maps, driver raid map is constant */
4694 fusion->drv_map_sz = sizeof(struct MR_DRV_RAID_MAP_ALL);
4695 }
4696
4697 /*
4698 * dcmd.opcode - MR_DCMD_CTRL_SNAPDUMP_GET_PROPERTIES
4699 * dcmd.hdr.length - number of bytes to read
4700 * dcmd.sge - Ptr to MR_SNAPDUMP_PROPERTIES
4701 * Desc: Fill in snapdump properties
4702 * Status: MFI_STAT_OK- Command successful
4703 */
4704 void megasas_get_snapdump_properties(struct megasas_instance *instance)
4705 {
4706 int ret = 0;
4707 struct megasas_cmd *cmd;
4708 struct megasas_dcmd_frame *dcmd;
4709 struct MR_SNAPDUMP_PROPERTIES *ci;
4710 dma_addr_t ci_h = 0;
4711
4712 ci = instance->snapdump_prop;
4713 ci_h = instance->snapdump_prop_h;
4714
4715 if (!ci)
4716 return;
4717
4718 cmd = megasas_get_cmd(instance);
4719
4720 if (!cmd) {
4721 dev_dbg(&instance->pdev->dev, "Failed to get a free cmd\n");
4722 return;
4723 }
4724
4725 dcmd = &cmd->frame->dcmd;
4726
4727 memset(ci, 0, sizeof(*ci));
4728 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
4729
4730 dcmd->cmd = MFI_CMD_DCMD;
4731 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
4732 dcmd->sge_count = 1;
4733 dcmd->flags = MFI_FRAME_DIR_READ;
4734 dcmd->timeout = 0;
4735 dcmd->pad_0 = 0;
4736 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_SNAPDUMP_PROPERTIES));
4737 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_SNAPDUMP_GET_PROPERTIES);
4738
4739 megasas_set_dma_settings(instance, dcmd, ci_h,
4740 sizeof(struct MR_SNAPDUMP_PROPERTIES));
4741
4742 if (!instance->mask_interrupts) {
4743 ret = megasas_issue_blocked_cmd(instance, cmd,
4744 MFI_IO_TIMEOUT_SECS);
4745 } else {
4746 ret = megasas_issue_polled(instance, cmd);
4747 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
4748 }
4749
4750 switch (ret) {
4751 case DCMD_SUCCESS:
4752 instance->snapdump_wait_time =
4753 min_t(u8, ci->trigger_min_num_sec_before_ocr,
4754 MEGASAS_MAX_SNAP_DUMP_WAIT_TIME);
4755 break;
4756
4757 case DCMD_TIMEOUT:
4758 switch (dcmd_timeout_ocr_possible(instance)) {
4759 case INITIATE_OCR:
4760 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
4761 megasas_reset_fusion(instance->host,
4762 MFI_IO_TIMEOUT_OCR);
4763 break;
4764 case KILL_ADAPTER:
4765 megaraid_sas_kill_hba(instance);
4766 break;
4767 case IGNORE_TIMEOUT:
4768 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n",
4769 __func__, __LINE__);
4770 break;
4771 }
4772 }
4773
4774 if (ret != DCMD_TIMEOUT)
4775 megasas_return_cmd(instance, cmd);
4776 }
4777
4778 /**
4779 * megasas_get_controller_info - Returns FW's controller structure
4780 * @instance: Adapter soft state
4781 *
4782 * Issues an internal command (DCMD) to get the FW's controller structure.
4783 * This information is mainly used to find out the maximum IO transfer per
4784 * command supported by the FW.
4785 */
4786 int
4787 megasas_get_ctrl_info(struct megasas_instance *instance)
4788 {
4789 int ret = 0;
4790 struct megasas_cmd *cmd;
4791 struct megasas_dcmd_frame *dcmd;
4792 struct megasas_ctrl_info *ci;
4793 dma_addr_t ci_h = 0;
4794
4795 ci = instance->ctrl_info_buf;
4796 ci_h = instance->ctrl_info_buf_h;
4797
4798 cmd = megasas_get_cmd(instance);
4799
4800 if (!cmd) {
4801 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to get a free cmd\n");
4802 return -ENOMEM;
4803 }
4804
4805 dcmd = &cmd->frame->dcmd;
4806
4807 memset(ci, 0, sizeof(*ci));
4808 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
4809
4810 dcmd->cmd = MFI_CMD_DCMD;
4811 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
4812 dcmd->sge_count = 1;
4813 dcmd->flags = MFI_FRAME_DIR_READ;
4814 dcmd->timeout = 0;
4815 dcmd->pad_0 = 0;
4816 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct megasas_ctrl_info));
4817 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_GET_INFO);
4818 dcmd->mbox.b[0] = 1;
4819
4820 megasas_set_dma_settings(instance, dcmd, ci_h,
4821 sizeof(struct megasas_ctrl_info));
4822
4823 if ((instance->adapter_type != MFI_SERIES) &&
4824 !instance->mask_interrupts) {
4825 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS);
4826 } else {
4827 ret = megasas_issue_polled(instance, cmd);
4828 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
4829 }
4830
4831 switch (ret) {
4832 case DCMD_SUCCESS:
4833 /* Save required controller information in
4834 * CPU endianness format.
4835 */
4836 le32_to_cpus((u32 *)&ci->properties.OnOffProperties);
4837 le16_to_cpus((u16 *)&ci->properties.on_off_properties2);
4838 le32_to_cpus((u32 *)&ci->adapterOperations2);
4839 le32_to_cpus((u32 *)&ci->adapterOperations3);
4840 le16_to_cpus((u16 *)&ci->adapter_operations4);
4841
4842 /* Update the latest Ext VD info.
4843 * From Init path, store current firmware details.
4844 * From OCR path, detect any firmware properties changes.
4845 * in case of Firmware upgrade without system reboot.
4846 */
4847 megasas_update_ext_vd_details(instance);
4848 instance->use_seqnum_jbod_fp =
4849 ci->adapterOperations3.useSeqNumJbodFP;
4850 instance->support_morethan256jbod =
4851 ci->adapter_operations4.support_pd_map_target_id;
4852 instance->support_nvme_passthru =
4853 ci->adapter_operations4.support_nvme_passthru;
4854 instance->task_abort_tmo = ci->TaskAbortTO;
4855 instance->max_reset_tmo = ci->MaxResetTO;
4856
4857 /*Check whether controller is iMR or MR */
4858 instance->is_imr = (ci->memory_size ? 0 : 1);
4859
4860 instance->snapdump_wait_time =
4861 (ci->properties.on_off_properties2.enable_snap_dump ?
4862 MEGASAS_DEFAULT_SNAP_DUMP_WAIT_TIME : 0);
4863
4864 dev_info(&instance->pdev->dev,
4865 "controller type\t: %s(%dMB)\n",
4866 instance->is_imr ? "iMR" : "MR",
4867 le16_to_cpu(ci->memory_size));
4868
4869 instance->disableOnlineCtrlReset =
4870 ci->properties.OnOffProperties.disableOnlineCtrlReset;
4871 instance->secure_jbod_support =
4872 ci->adapterOperations3.supportSecurityonJBOD;
4873 dev_info(&instance->pdev->dev, "Online Controller Reset(OCR)\t: %s\n",
4874 instance->disableOnlineCtrlReset ? "Disabled" : "Enabled");
4875 dev_info(&instance->pdev->dev, "Secure JBOD support\t: %s\n",
4876 instance->secure_jbod_support ? "Yes" : "No");
4877 dev_info(&instance->pdev->dev, "NVMe passthru support\t: %s\n",
4878 instance->support_nvme_passthru ? "Yes" : "No");
4879 dev_info(&instance->pdev->dev,
4880 "FW provided TM TaskAbort/Reset timeout\t: %d secs/%d secs\n",
4881 instance->task_abort_tmo, instance->max_reset_tmo);
4882
4883 break;
4884
4885 case DCMD_TIMEOUT:
4886 switch (dcmd_timeout_ocr_possible(instance)) {
4887 case INITIATE_OCR:
4888 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
4889 megasas_reset_fusion(instance->host,
4890 MFI_IO_TIMEOUT_OCR);
4891 break;
4892 case KILL_ADAPTER:
4893 megaraid_sas_kill_hba(instance);
4894 break;
4895 case IGNORE_TIMEOUT:
4896 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n",
4897 __func__, __LINE__);
4898 break;
4899 }
4900 break;
4901 case DCMD_FAILED:
4902 megaraid_sas_kill_hba(instance);
4903 break;
4904
4905 }
4906
4907 if (ret != DCMD_TIMEOUT)
4908 megasas_return_cmd(instance, cmd);
4909
4910 return ret;
4911 }
4912
4913 /*
4914 * megasas_set_crash_dump_params - Sends address of crash dump DMA buffer
4915 * to firmware
4916 *
4917 * @instance: Adapter soft state
4918 * @crash_buf_state - tell FW to turn ON/OFF crash dump feature
4919 MR_CRASH_BUF_TURN_OFF = 0
4920 MR_CRASH_BUF_TURN_ON = 1
4921 * @return 0 on success non-zero on failure.
4922 * Issues an internal command (DCMD) to set parameters for crash dump feature.
4923 * Driver will send address of crash dump DMA buffer and set mbox to tell FW
4924 * that driver supports crash dump feature. This DCMD will be sent only if
4925 * crash dump feature is supported by the FW.
4926 *
4927 */
4928 int megasas_set_crash_dump_params(struct megasas_instance *instance,
4929 u8 crash_buf_state)
4930 {
4931 int ret = 0;
4932 struct megasas_cmd *cmd;
4933 struct megasas_dcmd_frame *dcmd;
4934
4935 cmd = megasas_get_cmd(instance);
4936
4937 if (!cmd) {
4938 dev_err(&instance->pdev->dev, "Failed to get a free cmd\n");
4939 return -ENOMEM;
4940 }
4941
4942
4943 dcmd = &cmd->frame->dcmd;
4944
4945 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
4946 dcmd->mbox.b[0] = crash_buf_state;
4947 dcmd->cmd = MFI_CMD_DCMD;
4948 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
4949 dcmd->sge_count = 1;
4950 dcmd->flags = MFI_FRAME_DIR_NONE;
4951 dcmd->timeout = 0;
4952 dcmd->pad_0 = 0;
4953 dcmd->data_xfer_len = cpu_to_le32(CRASH_DMA_BUF_SIZE);
4954 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_SET_CRASH_DUMP_PARAMS);
4955
4956 megasas_set_dma_settings(instance, dcmd, instance->crash_dump_h,
4957 CRASH_DMA_BUF_SIZE);
4958
4959 if ((instance->adapter_type != MFI_SERIES) &&
4960 !instance->mask_interrupts)
4961 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS);
4962 else
4963 ret = megasas_issue_polled(instance, cmd);
4964
4965 if (ret == DCMD_TIMEOUT) {
4966 switch (dcmd_timeout_ocr_possible(instance)) {
4967 case INITIATE_OCR:
4968 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
4969 megasas_reset_fusion(instance->host,
4970 MFI_IO_TIMEOUT_OCR);
4971 break;
4972 case KILL_ADAPTER:
4973 megaraid_sas_kill_hba(instance);
4974 break;
4975 case IGNORE_TIMEOUT:
4976 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n",
4977 __func__, __LINE__);
4978 break;
4979 }
4980 } else
4981 megasas_return_cmd(instance, cmd);
4982
4983 return ret;
4984 }
4985
4986 /**
4987 * megasas_issue_init_mfi - Initializes the FW
4988 * @instance: Adapter soft state
4989 *
4990 * Issues the INIT MFI cmd
4991 */
4992 static int
4993 megasas_issue_init_mfi(struct megasas_instance *instance)
4994 {
4995 __le32 context;
4996 struct megasas_cmd *cmd;
4997 struct megasas_init_frame *init_frame;
4998 struct megasas_init_queue_info *initq_info;
4999 dma_addr_t init_frame_h;
5000 dma_addr_t initq_info_h;
5001
5002 /*
5003 * Prepare a init frame. Note the init frame points to queue info
5004 * structure. Each frame has SGL allocated after first 64 bytes. For
5005 * this frame - since we don't need any SGL - we use SGL's space as
5006 * queue info structure
5007 *
5008 * We will not get a NULL command below. We just created the pool.
5009 */
5010 cmd = megasas_get_cmd(instance);
5011
5012 init_frame = (struct megasas_init_frame *)cmd->frame;
5013 initq_info = (struct megasas_init_queue_info *)
5014 ((unsigned long)init_frame + 64);
5015
5016 init_frame_h = cmd->frame_phys_addr;
5017 initq_info_h = init_frame_h + 64;
5018
5019 context = init_frame->context;
5020 memset(init_frame, 0, MEGAMFI_FRAME_SIZE);
5021 memset(initq_info, 0, sizeof(struct megasas_init_queue_info));
5022 init_frame->context = context;
5023
5024 initq_info->reply_queue_entries = cpu_to_le32(instance->max_fw_cmds + 1);
5025 initq_info->reply_queue_start_phys_addr_lo = cpu_to_le32(instance->reply_queue_h);
5026
5027 initq_info->producer_index_phys_addr_lo = cpu_to_le32(instance->producer_h);
5028 initq_info->consumer_index_phys_addr_lo = cpu_to_le32(instance->consumer_h);
5029
5030 init_frame->cmd = MFI_CMD_INIT;
5031 init_frame->cmd_status = MFI_STAT_INVALID_STATUS;
5032 init_frame->queue_info_new_phys_addr_lo =
5033 cpu_to_le32(lower_32_bits(initq_info_h));
5034 init_frame->queue_info_new_phys_addr_hi =
5035 cpu_to_le32(upper_32_bits(initq_info_h));
5036
5037 init_frame->data_xfer_len = cpu_to_le32(sizeof(struct megasas_init_queue_info));
5038
5039 /*
5040 * disable the intr before firing the init frame to FW
5041 */
5042 instance->instancet->disable_intr(instance);
5043
5044 /*
5045 * Issue the init frame in polled mode
5046 */
5047
5048 if (megasas_issue_polled(instance, cmd)) {
5049 dev_err(&instance->pdev->dev, "Failed to init firmware\n");
5050 megasas_return_cmd(instance, cmd);
5051 goto fail_fw_init;
5052 }
5053
5054 megasas_return_cmd(instance, cmd);
5055
5056 return 0;
5057
5058 fail_fw_init:
5059 return -EINVAL;
5060 }
5061
5062 static u32
5063 megasas_init_adapter_mfi(struct megasas_instance *instance)
5064 {
5065 u32 context_sz;
5066 u32 reply_q_sz;
5067
5068 /*
5069 * Get various operational parameters from status register
5070 */
5071 instance->max_fw_cmds = instance->instancet->read_fw_status_reg(instance) & 0x00FFFF;
5072 /*
5073 * Reduce the max supported cmds by 1. This is to ensure that the
5074 * reply_q_sz (1 more than the max cmd that driver may send)
5075 * does not exceed max cmds that the FW can support
5076 */
5077 instance->max_fw_cmds = instance->max_fw_cmds-1;
5078 instance->max_mfi_cmds = instance->max_fw_cmds;
5079 instance->max_num_sge = (instance->instancet->read_fw_status_reg(instance) & 0xFF0000) >>
5080 0x10;
5081 /*
5082 * For MFI skinny adapters, MEGASAS_SKINNY_INT_CMDS commands
5083 * are reserved for IOCTL + driver's internal DCMDs.
5084 */
5085 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
5086 (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY)) {
5087 instance->max_scsi_cmds = (instance->max_fw_cmds -
5088 MEGASAS_SKINNY_INT_CMDS);
5089 sema_init(&instance->ioctl_sem, MEGASAS_SKINNY_INT_CMDS);
5090 } else {
5091 instance->max_scsi_cmds = (instance->max_fw_cmds -
5092 MEGASAS_INT_CMDS);
5093 sema_init(&instance->ioctl_sem, (MEGASAS_MFI_IOCTL_CMDS));
5094 }
5095
5096 instance->cur_can_queue = instance->max_scsi_cmds;
5097 /*
5098 * Create a pool of commands
5099 */
5100 if (megasas_alloc_cmds(instance))
5101 goto fail_alloc_cmds;
5102
5103 /*
5104 * Allocate memory for reply queue. Length of reply queue should
5105 * be _one_ more than the maximum commands handled by the firmware.
5106 *
5107 * Note: When FW completes commands, it places corresponding contex
5108 * values in this circular reply queue. This circular queue is a fairly
5109 * typical producer-consumer queue. FW is the producer (of completed
5110 * commands) and the driver is the consumer.
5111 */
5112 context_sz = sizeof(u32);
5113 reply_q_sz = context_sz * (instance->max_fw_cmds + 1);
5114
5115 instance->reply_queue = dma_alloc_coherent(&instance->pdev->dev,
5116 reply_q_sz, &instance->reply_queue_h, GFP_KERNEL);
5117
5118 if (!instance->reply_queue) {
5119 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Out of DMA mem for reply queue\n");
5120 goto fail_reply_queue;
5121 }
5122
5123 if (megasas_issue_init_mfi(instance))
5124 goto fail_fw_init;
5125
5126 if (megasas_get_ctrl_info(instance)) {
5127 dev_err(&instance->pdev->dev, "(%d): Could get controller info "
5128 "Fail from %s %d\n", instance->unique_id,
5129 __func__, __LINE__);
5130 goto fail_fw_init;
5131 }
5132
5133 instance->fw_support_ieee = 0;
5134 instance->fw_support_ieee =
5135 (instance->instancet->read_fw_status_reg(instance) &
5136 0x04000000);
5137
5138 dev_notice(&instance->pdev->dev, "megasas_init_mfi: fw_support_ieee=%d",
5139 instance->fw_support_ieee);
5140
5141 if (instance->fw_support_ieee)
5142 instance->flag_ieee = 1;
5143
5144 return 0;
5145
5146 fail_fw_init:
5147
5148 dma_free_coherent(&instance->pdev->dev, reply_q_sz,
5149 instance->reply_queue, instance->reply_queue_h);
5150 fail_reply_queue:
5151 megasas_free_cmds(instance);
5152
5153 fail_alloc_cmds:
5154 return 1;
5155 }
5156
5157 /*
5158 * megasas_setup_irqs_ioapic - register legacy interrupts.
5159 * @instance: Adapter soft state
5160 *
5161 * Do not enable interrupt, only setup ISRs.
5162 *
5163 * Return 0 on success.
5164 */
5165 static int
5166 megasas_setup_irqs_ioapic(struct megasas_instance *instance)
5167 {
5168 struct pci_dev *pdev;
5169
5170 pdev = instance->pdev;
5171 instance->irq_context[0].instance = instance;
5172 instance->irq_context[0].MSIxIndex = 0;
5173 if (request_irq(pci_irq_vector(pdev, 0),
5174 instance->instancet->service_isr, IRQF_SHARED,
5175 "megasas", &instance->irq_context[0])) {
5176 dev_err(&instance->pdev->dev,
5177 "Failed to register IRQ from %s %d\n",
5178 __func__, __LINE__);
5179 return -1;
5180 }
5181 return 0;
5182 }
5183
5184 /**
5185 * megasas_setup_irqs_msix - register MSI-x interrupts.
5186 * @instance: Adapter soft state
5187 * @is_probe: Driver probe check
5188 *
5189 * Do not enable interrupt, only setup ISRs.
5190 *
5191 * Return 0 on success.
5192 */
5193 static int
5194 megasas_setup_irqs_msix(struct megasas_instance *instance, u8 is_probe)
5195 {
5196 int i, j;
5197 struct pci_dev *pdev;
5198
5199 pdev = instance->pdev;
5200
5201 /* Try MSI-x */
5202 for (i = 0; i < instance->msix_vectors; i++) {
5203 instance->irq_context[i].instance = instance;
5204 instance->irq_context[i].MSIxIndex = i;
5205 if (request_irq(pci_irq_vector(pdev, i),
5206 instance->instancet->service_isr, 0, "megasas",
5207 &instance->irq_context[i])) {
5208 dev_err(&instance->pdev->dev,
5209 "Failed to register IRQ for vector %d.\n", i);
5210 for (j = 0; j < i; j++)
5211 free_irq(pci_irq_vector(pdev, j),
5212 &instance->irq_context[j]);
5213 /* Retry irq register for IO_APIC*/
5214 instance->msix_vectors = 0;
5215 if (is_probe) {
5216 pci_free_irq_vectors(instance->pdev);
5217 return megasas_setup_irqs_ioapic(instance);
5218 } else {
5219 return -1;
5220 }
5221 }
5222 }
5223 return 0;
5224 }
5225
5226 /*
5227 * megasas_destroy_irqs- unregister interrupts.
5228 * @instance: Adapter soft state
5229 * return: void
5230 */
5231 static void
5232 megasas_destroy_irqs(struct megasas_instance *instance) {
5233
5234 int i;
5235
5236 if (instance->msix_vectors)
5237 for (i = 0; i < instance->msix_vectors; i++) {
5238 free_irq(pci_irq_vector(instance->pdev, i),
5239 &instance->irq_context[i]);
5240 }
5241 else
5242 free_irq(pci_irq_vector(instance->pdev, 0),
5243 &instance->irq_context[0]);
5244 }
5245
5246 /**
5247 * megasas_setup_jbod_map - setup jbod map for FP seq_number.
5248 * @instance: Adapter soft state
5249 * @is_probe: Driver probe check
5250 *
5251 * Return 0 on success.
5252 */
5253 void
5254 megasas_setup_jbod_map(struct megasas_instance *instance)
5255 {
5256 int i;
5257 struct fusion_context *fusion = instance->ctrl_context;
5258 u32 pd_seq_map_sz;
5259
5260 pd_seq_map_sz = sizeof(struct MR_PD_CFG_SEQ_NUM_SYNC) +
5261 (sizeof(struct MR_PD_CFG_SEQ) * (MAX_PHYSICAL_DEVICES - 1));
5262
5263 if (reset_devices || !fusion ||
5264 !instance->ctrl_info_buf->adapterOperations3.useSeqNumJbodFP) {
5265 dev_info(&instance->pdev->dev,
5266 "Jbod map is not supported %s %d\n",
5267 __func__, __LINE__);
5268 instance->use_seqnum_jbod_fp = false;
5269 return;
5270 }
5271
5272 if (fusion->pd_seq_sync[0])
5273 goto skip_alloc;
5274
5275 for (i = 0; i < JBOD_MAPS_COUNT; i++) {
5276 fusion->pd_seq_sync[i] = dma_alloc_coherent
5277 (&instance->pdev->dev, pd_seq_map_sz,
5278 &fusion->pd_seq_phys[i], GFP_KERNEL);
5279 if (!fusion->pd_seq_sync[i]) {
5280 dev_err(&instance->pdev->dev,
5281 "Failed to allocate memory from %s %d\n",
5282 __func__, __LINE__);
5283 if (i == 1) {
5284 dma_free_coherent(&instance->pdev->dev,
5285 pd_seq_map_sz, fusion->pd_seq_sync[0],
5286 fusion->pd_seq_phys[0]);
5287 fusion->pd_seq_sync[0] = NULL;
5288 }
5289 instance->use_seqnum_jbod_fp = false;
5290 return;
5291 }
5292 }
5293
5294 skip_alloc:
5295 if (!megasas_sync_pd_seq_num(instance, false) &&
5296 !megasas_sync_pd_seq_num(instance, true))
5297 instance->use_seqnum_jbod_fp = true;
5298 else
5299 instance->use_seqnum_jbod_fp = false;
5300 }
5301
5302 static void megasas_setup_reply_map(struct megasas_instance *instance)
5303 {
5304 const struct cpumask *mask;
5305 unsigned int queue, cpu;
5306
5307 for (queue = 0; queue < instance->msix_vectors; queue++) {
5308 mask = pci_irq_get_affinity(instance->pdev, queue);
5309 if (!mask)
5310 goto fallback;
5311
5312 for_each_cpu(cpu, mask)
5313 instance->reply_map[cpu] = queue;
5314 }
5315 return;
5316
5317 fallback:
5318 for_each_possible_cpu(cpu)
5319 instance->reply_map[cpu] = cpu % instance->msix_vectors;
5320 }
5321
5322 /**
5323 * megasas_init_fw - Initializes the FW
5324 * @instance: Adapter soft state
5325 *
5326 * This is the main function for initializing firmware
5327 */
5328
5329 static int megasas_init_fw(struct megasas_instance *instance)
5330 {
5331 u32 max_sectors_1;
5332 u32 max_sectors_2, tmp_sectors, msix_enable;
5333 u32 scratch_pad_1, scratch_pad_2, scratch_pad_3, status_reg;
5334 resource_size_t base_addr;
5335 struct megasas_ctrl_info *ctrl_info = NULL;
5336 unsigned long bar_list;
5337 int i, j, loop, fw_msix_count = 0;
5338 struct IOV_111 *iovPtr;
5339 struct fusion_context *fusion;
5340 bool do_adp_reset = true;
5341
5342 fusion = instance->ctrl_context;
5343
5344 /* Find first memory bar */
5345 bar_list = pci_select_bars(instance->pdev, IORESOURCE_MEM);
5346 instance->bar = find_first_bit(&bar_list, BITS_PER_LONG);
5347 if (pci_request_selected_regions(instance->pdev, 1<<instance->bar,
5348 "megasas: LSI")) {
5349 dev_printk(KERN_DEBUG, &instance->pdev->dev, "IO memory region busy!\n");
5350 return -EBUSY;
5351 }
5352
5353 base_addr = pci_resource_start(instance->pdev, instance->bar);
5354 instance->reg_set = ioremap_nocache(base_addr, 8192);
5355
5356 if (!instance->reg_set) {
5357 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to map IO mem\n");
5358 goto fail_ioremap;
5359 }
5360
5361 if (instance->adapter_type != MFI_SERIES)
5362 instance->instancet = &megasas_instance_template_fusion;
5363 else {
5364 switch (instance->pdev->device) {
5365 case PCI_DEVICE_ID_LSI_SAS1078R:
5366 case PCI_DEVICE_ID_LSI_SAS1078DE:
5367 instance->instancet = &megasas_instance_template_ppc;
5368 break;
5369 case PCI_DEVICE_ID_LSI_SAS1078GEN2:
5370 case PCI_DEVICE_ID_LSI_SAS0079GEN2:
5371 instance->instancet = &megasas_instance_template_gen2;
5372 break;
5373 case PCI_DEVICE_ID_LSI_SAS0073SKINNY:
5374 case PCI_DEVICE_ID_LSI_SAS0071SKINNY:
5375 instance->instancet = &megasas_instance_template_skinny;
5376 break;
5377 case PCI_DEVICE_ID_LSI_SAS1064R:
5378 case PCI_DEVICE_ID_DELL_PERC5:
5379 default:
5380 instance->instancet = &megasas_instance_template_xscale;
5381 instance->pd_list_not_supported = 1;
5382 break;
5383 }
5384 }
5385
5386 if (megasas_transition_to_ready(instance, 0)) {
5387 if (instance->adapter_type >= INVADER_SERIES) {
5388 status_reg = instance->instancet->read_fw_status_reg(
5389 instance);
5390 do_adp_reset = status_reg & MFI_RESET_ADAPTER;
5391 }
5392
5393 if (do_adp_reset) {
5394 atomic_set(&instance->fw_reset_no_pci_access, 1);
5395 instance->instancet->adp_reset
5396 (instance, instance->reg_set);
5397 atomic_set(&instance->fw_reset_no_pci_access, 0);
5398 dev_info(&instance->pdev->dev,
5399 "FW restarted successfully from %s!\n",
5400 __func__);
5401
5402 /*waiting for about 30 second before retry*/
5403 ssleep(30);
5404
5405 if (megasas_transition_to_ready(instance, 0))
5406 goto fail_ready_state;
5407 } else {
5408 goto fail_ready_state;
5409 }
5410 }
5411
5412 megasas_init_ctrl_params(instance);
5413
5414 if (megasas_set_dma_mask(instance))
5415 goto fail_ready_state;
5416
5417 if (megasas_alloc_ctrl_mem(instance))
5418 goto fail_alloc_dma_buf;
5419
5420 if (megasas_alloc_ctrl_dma_buffers(instance))
5421 goto fail_alloc_dma_buf;
5422
5423 fusion = instance->ctrl_context;
5424
5425 if (instance->adapter_type >= VENTURA_SERIES) {
5426 scratch_pad_2 =
5427 megasas_readl(instance,
5428 &instance->reg_set->outbound_scratch_pad_2);
5429 instance->max_raid_mapsize = ((scratch_pad_2 >>
5430 MR_MAX_RAID_MAP_SIZE_OFFSET_SHIFT) &
5431 MR_MAX_RAID_MAP_SIZE_MASK);
5432 }
5433
5434 /* Check if MSI-X is supported while in ready state */
5435 msix_enable = (instance->instancet->read_fw_status_reg(instance) &
5436 0x4000000) >> 0x1a;
5437 if (msix_enable && !msix_disable) {
5438 int irq_flags = PCI_IRQ_MSIX;
5439
5440 scratch_pad_1 = megasas_readl
5441 (instance, &instance->reg_set->outbound_scratch_pad_1);
5442 /* Check max MSI-X vectors */
5443 if (fusion) {
5444 if (instance->adapter_type == THUNDERBOLT_SERIES) {
5445 /* Thunderbolt Series*/
5446 instance->msix_vectors = (scratch_pad_1
5447 & MR_MAX_REPLY_QUEUES_OFFSET) + 1;
5448 fw_msix_count = instance->msix_vectors;
5449 } else {
5450 instance->msix_vectors = ((scratch_pad_1
5451 & MR_MAX_REPLY_QUEUES_EXT_OFFSET)
5452 >> MR_MAX_REPLY_QUEUES_EXT_OFFSET_SHIFT) + 1;
5453
5454 /*
5455 * For Invader series, > 8 MSI-x vectors
5456 * supported by FW/HW implies combined
5457 * reply queue mode is enabled.
5458 * For Ventura series, > 16 MSI-x vectors
5459 * supported by FW/HW implies combined
5460 * reply queue mode is enabled.
5461 */
5462 switch (instance->adapter_type) {
5463 case INVADER_SERIES:
5464 if (instance->msix_vectors > 8)
5465 instance->msix_combined = true;
5466 break;
5467 case AERO_SERIES:
5468 case VENTURA_SERIES:
5469 if (instance->msix_vectors > 16)
5470 instance->msix_combined = true;
5471 break;
5472 }
5473
5474 if (rdpq_enable)
5475 instance->is_rdpq = (scratch_pad_1 & MR_RDPQ_MODE_OFFSET) ?
5476 1 : 0;
5477 fw_msix_count = instance->msix_vectors;
5478 /* Save 1-15 reply post index address to local memory
5479 * Index 0 is already saved from reg offset
5480 * MPI2_REPLY_POST_HOST_INDEX_OFFSET
5481 */
5482 for (loop = 1; loop < MR_MAX_MSIX_REG_ARRAY; loop++) {
5483 instance->reply_post_host_index_addr[loop] =
5484 (u32 __iomem *)
5485 ((u8 __iomem *)instance->reg_set +
5486 MPI2_SUP_REPLY_POST_HOST_INDEX_OFFSET
5487 + (loop * 0x10));
5488 }
5489 }
5490 if (msix_vectors)
5491 instance->msix_vectors = min(msix_vectors,
5492 instance->msix_vectors);
5493 } else /* MFI adapters */
5494 instance->msix_vectors = 1;
5495 /* Don't bother allocating more MSI-X vectors than cpus */
5496 instance->msix_vectors = min(instance->msix_vectors,
5497 (unsigned int)num_online_cpus());
5498 if (smp_affinity_enable)
5499 irq_flags |= PCI_IRQ_AFFINITY;
5500 i = pci_alloc_irq_vectors(instance->pdev, 1,
5501 instance->msix_vectors, irq_flags);
5502 if (i > 0)
5503 instance->msix_vectors = i;
5504 else
5505 instance->msix_vectors = 0;
5506 }
5507 /*
5508 * MSI-X host index 0 is common for all adapter.
5509 * It is used for all MPT based Adapters.
5510 */
5511 if (instance->msix_combined) {
5512 instance->reply_post_host_index_addr[0] =
5513 (u32 *)((u8 *)instance->reg_set +
5514 MPI2_SUP_REPLY_POST_HOST_INDEX_OFFSET);
5515 } else {
5516 instance->reply_post_host_index_addr[0] =
5517 (u32 *)((u8 *)instance->reg_set +
5518 MPI2_REPLY_POST_HOST_INDEX_OFFSET);
5519 }
5520
5521 if (!instance->msix_vectors) {
5522 i = pci_alloc_irq_vectors(instance->pdev, 1, 1, PCI_IRQ_LEGACY);
5523 if (i < 0)
5524 goto fail_init_adapter;
5525 }
5526
5527 megasas_setup_reply_map(instance);
5528
5529 dev_info(&instance->pdev->dev,
5530 "firmware supports msix\t: (%d)", fw_msix_count);
5531 dev_info(&instance->pdev->dev,
5532 "current msix/online cpus\t: (%d/%d)\n",
5533 instance->msix_vectors, (unsigned int)num_online_cpus());
5534 dev_info(&instance->pdev->dev,
5535 "RDPQ mode\t: (%s)\n", instance->is_rdpq ? "enabled" : "disabled");
5536
5537 tasklet_init(&instance->isr_tasklet, instance->instancet->tasklet,
5538 (unsigned long)instance);
5539
5540 /*
5541 * Below are default value for legacy Firmware.
5542 * non-fusion based controllers
5543 */
5544 instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES;
5545 instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES;
5546 /* Get operational params, sge flags, send init cmd to controller */
5547 if (instance->instancet->init_adapter(instance))
5548 goto fail_init_adapter;
5549
5550 if (instance->adapter_type >= VENTURA_SERIES) {
5551 scratch_pad_3 =
5552 megasas_readl(instance,
5553 &instance->reg_set->outbound_scratch_pad_3);
5554 if ((scratch_pad_3 & MR_NVME_PAGE_SIZE_MASK) >=
5555 MR_DEFAULT_NVME_PAGE_SHIFT)
5556 instance->nvme_page_size =
5557 (1 << (scratch_pad_3 & MR_NVME_PAGE_SIZE_MASK));
5558
5559 dev_info(&instance->pdev->dev,
5560 "NVME page size\t: (%d)\n", instance->nvme_page_size);
5561 }
5562
5563 if (instance->msix_vectors ?
5564 megasas_setup_irqs_msix(instance, 1) :
5565 megasas_setup_irqs_ioapic(instance))
5566 goto fail_init_adapter;
5567
5568 instance->instancet->enable_intr(instance);
5569
5570 dev_info(&instance->pdev->dev, "INIT adapter done\n");
5571
5572 megasas_setup_jbod_map(instance);
5573
5574 /** for passthrough
5575 * the following function will get the PD LIST.
5576 */
5577 memset(instance->pd_list, 0,
5578 (MEGASAS_MAX_PD * sizeof(struct megasas_pd_list)));
5579 if (megasas_get_pd_list(instance) < 0) {
5580 dev_err(&instance->pdev->dev, "failed to get PD list\n");
5581 goto fail_get_ld_pd_list;
5582 }
5583
5584 memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS);
5585
5586 /* stream detection initialization */
5587 if (instance->adapter_type >= VENTURA_SERIES) {
5588 fusion->stream_detect_by_ld =
5589 kcalloc(MAX_LOGICAL_DRIVES_EXT,
5590 sizeof(struct LD_STREAM_DETECT *),
5591 GFP_KERNEL);
5592 if (!fusion->stream_detect_by_ld) {
5593 dev_err(&instance->pdev->dev,
5594 "unable to allocate stream detection for pool of LDs\n");
5595 goto fail_get_ld_pd_list;
5596 }
5597 for (i = 0; i < MAX_LOGICAL_DRIVES_EXT; ++i) {
5598 fusion->stream_detect_by_ld[i] =
5599 kzalloc(sizeof(struct LD_STREAM_DETECT),
5600 GFP_KERNEL);
5601 if (!fusion->stream_detect_by_ld[i]) {
5602 dev_err(&instance->pdev->dev,
5603 "unable to allocate stream detect by LD\n ");
5604 for (j = 0; j < i; ++j)
5605 kfree(fusion->stream_detect_by_ld[j]);
5606 kfree(fusion->stream_detect_by_ld);
5607 fusion->stream_detect_by_ld = NULL;
5608 goto fail_get_ld_pd_list;
5609 }
5610 fusion->stream_detect_by_ld[i]->mru_bit_map
5611 = MR_STREAM_BITMAP;
5612 }
5613 }
5614
5615 if (megasas_ld_list_query(instance,
5616 MR_LD_QUERY_TYPE_EXPOSED_TO_HOST))
5617 goto fail_get_ld_pd_list;
5618
5619 /*
5620 * Compute the max allowed sectors per IO: The controller info has two
5621 * limits on max sectors. Driver should use the minimum of these two.
5622 *
5623 * 1 << stripe_sz_ops.min = max sectors per strip
5624 *
5625 * Note that older firmwares ( < FW ver 30) didn't report information
5626 * to calculate max_sectors_1. So the number ended up as zero always.
5627 */
5628 tmp_sectors = 0;
5629 ctrl_info = instance->ctrl_info_buf;
5630
5631 max_sectors_1 = (1 << ctrl_info->stripe_sz_ops.min) *
5632 le16_to_cpu(ctrl_info->max_strips_per_io);
5633 max_sectors_2 = le32_to_cpu(ctrl_info->max_request_size);
5634
5635 tmp_sectors = min_t(u32, max_sectors_1, max_sectors_2);
5636
5637 instance->peerIsPresent = ctrl_info->cluster.peerIsPresent;
5638 instance->passive = ctrl_info->cluster.passive;
5639 memcpy(instance->clusterId, ctrl_info->clusterId, sizeof(instance->clusterId));
5640 instance->UnevenSpanSupport =
5641 ctrl_info->adapterOperations2.supportUnevenSpans;
5642 if (instance->UnevenSpanSupport) {
5643 struct fusion_context *fusion = instance->ctrl_context;
5644 if (MR_ValidateMapInfo(instance, instance->map_id))
5645 fusion->fast_path_io = 1;
5646 else
5647 fusion->fast_path_io = 0;
5648
5649 }
5650 if (ctrl_info->host_interface.SRIOV) {
5651 instance->requestorId = ctrl_info->iov.requestorId;
5652 if (instance->pdev->device == PCI_DEVICE_ID_LSI_PLASMA) {
5653 if (!ctrl_info->adapterOperations2.activePassive)
5654 instance->PlasmaFW111 = 1;
5655
5656 dev_info(&instance->pdev->dev, "SR-IOV: firmware type: %s\n",
5657 instance->PlasmaFW111 ? "1.11" : "new");
5658
5659 if (instance->PlasmaFW111) {
5660 iovPtr = (struct IOV_111 *)
5661 ((unsigned char *)ctrl_info + IOV_111_OFFSET);
5662 instance->requestorId = iovPtr->requestorId;
5663 }
5664 }
5665 dev_info(&instance->pdev->dev, "SRIOV: VF requestorId %d\n",
5666 instance->requestorId);
5667 }
5668
5669 instance->crash_dump_fw_support =
5670 ctrl_info->adapterOperations3.supportCrashDump;
5671 instance->crash_dump_drv_support =
5672 (instance->crash_dump_fw_support &&
5673 instance->crash_dump_buf);
5674 if (instance->crash_dump_drv_support)
5675 megasas_set_crash_dump_params(instance,
5676 MR_CRASH_BUF_TURN_OFF);
5677
5678 else {
5679 if (instance->crash_dump_buf)
5680 dma_free_coherent(&instance->pdev->dev,
5681 CRASH_DMA_BUF_SIZE,
5682 instance->crash_dump_buf,
5683 instance->crash_dump_h);
5684 instance->crash_dump_buf = NULL;
5685 }
5686
5687 if (instance->snapdump_wait_time) {
5688 megasas_get_snapdump_properties(instance);
5689 dev_info(&instance->pdev->dev, "Snap dump wait time\t: %d\n",
5690 instance->snapdump_wait_time);
5691 }
5692
5693 dev_info(&instance->pdev->dev,
5694 "pci id\t\t: (0x%04x)/(0x%04x)/(0x%04x)/(0x%04x)\n",
5695 le16_to_cpu(ctrl_info->pci.vendor_id),
5696 le16_to_cpu(ctrl_info->pci.device_id),
5697 le16_to_cpu(ctrl_info->pci.sub_vendor_id),
5698 le16_to_cpu(ctrl_info->pci.sub_device_id));
5699 dev_info(&instance->pdev->dev, "unevenspan support : %s\n",
5700 instance->UnevenSpanSupport ? "yes" : "no");
5701 dev_info(&instance->pdev->dev, "firmware crash dump : %s\n",
5702 instance->crash_dump_drv_support ? "yes" : "no");
5703 dev_info(&instance->pdev->dev, "jbod sync map : %s\n",
5704 instance->use_seqnum_jbod_fp ? "yes" : "no");
5705
5706 instance->max_sectors_per_req = instance->max_num_sge *
5707 SGE_BUFFER_SIZE / 512;
5708 if (tmp_sectors && (instance->max_sectors_per_req > tmp_sectors))
5709 instance->max_sectors_per_req = tmp_sectors;
5710
5711 /* Check for valid throttlequeuedepth module parameter */
5712 if (throttlequeuedepth &&
5713 throttlequeuedepth <= instance->max_scsi_cmds)
5714 instance->throttlequeuedepth = throttlequeuedepth;
5715 else
5716 instance->throttlequeuedepth =
5717 MEGASAS_THROTTLE_QUEUE_DEPTH;
5718
5719 if ((resetwaittime < 1) ||
5720 (resetwaittime > MEGASAS_RESET_WAIT_TIME))
5721 resetwaittime = MEGASAS_RESET_WAIT_TIME;
5722
5723 if ((scmd_timeout < 10) || (scmd_timeout > MEGASAS_DEFAULT_CMD_TIMEOUT))
5724 scmd_timeout = MEGASAS_DEFAULT_CMD_TIMEOUT;
5725
5726 /* Launch SR-IOV heartbeat timer */
5727 if (instance->requestorId) {
5728 if (!megasas_sriov_start_heartbeat(instance, 1)) {
5729 megasas_start_timer(instance);
5730 } else {
5731 instance->skip_heartbeat_timer_del = 1;
5732 goto fail_get_ld_pd_list;
5733 }
5734 }
5735
5736 /*
5737 * Create and start watchdog thread which will monitor
5738 * controller state every 1 sec and trigger OCR when
5739 * it enters fault state
5740 */
5741 if (instance->adapter_type != MFI_SERIES)
5742 if (megasas_fusion_start_watchdog(instance) != SUCCESS)
5743 goto fail_start_watchdog;
5744
5745 return 0;
5746
5747 fail_start_watchdog:
5748 if (instance->requestorId && !instance->skip_heartbeat_timer_del)
5749 del_timer_sync(&instance->sriov_heartbeat_timer);
5750 fail_get_ld_pd_list:
5751 instance->instancet->disable_intr(instance);
5752 megasas_destroy_irqs(instance);
5753 fail_init_adapter:
5754 if (instance->msix_vectors)
5755 pci_free_irq_vectors(instance->pdev);
5756 instance->msix_vectors = 0;
5757 fail_alloc_dma_buf:
5758 megasas_free_ctrl_dma_buffers(instance);
5759 megasas_free_ctrl_mem(instance);
5760 fail_ready_state:
5761 iounmap(instance->reg_set);
5762
5763 fail_ioremap:
5764 pci_release_selected_regions(instance->pdev, 1<<instance->bar);
5765
5766 dev_err(&instance->pdev->dev, "Failed from %s %d\n",
5767 __func__, __LINE__);
5768 return -EINVAL;
5769 }
5770
5771 /**
5772 * megasas_release_mfi - Reverses the FW initialization
5773 * @instance: Adapter soft state
5774 */
5775 static void megasas_release_mfi(struct megasas_instance *instance)
5776 {
5777 u32 reply_q_sz = sizeof(u32) *(instance->max_mfi_cmds + 1);
5778
5779 if (instance->reply_queue)
5780 dma_free_coherent(&instance->pdev->dev, reply_q_sz,
5781 instance->reply_queue, instance->reply_queue_h);
5782
5783 megasas_free_cmds(instance);
5784
5785 iounmap(instance->reg_set);
5786
5787 pci_release_selected_regions(instance->pdev, 1<<instance->bar);
5788 }
5789
5790 /**
5791 * megasas_get_seq_num - Gets latest event sequence numbers
5792 * @instance: Adapter soft state
5793 * @eli: FW event log sequence numbers information
5794 *
5795 * FW maintains a log of all events in a non-volatile area. Upper layers would
5796 * usually find out the latest sequence number of the events, the seq number at
5797 * the boot etc. They would "read" all the events below the latest seq number
5798 * by issuing a direct fw cmd (DCMD). For the future events (beyond latest seq
5799 * number), they would subsribe to AEN (asynchronous event notification) and
5800 * wait for the events to happen.
5801 */
5802 static int
5803 megasas_get_seq_num(struct megasas_instance *instance,
5804 struct megasas_evt_log_info *eli)
5805 {
5806 struct megasas_cmd *cmd;
5807 struct megasas_dcmd_frame *dcmd;
5808 struct megasas_evt_log_info *el_info;
5809 dma_addr_t el_info_h = 0;
5810 int ret;
5811
5812 cmd = megasas_get_cmd(instance);
5813
5814 if (!cmd) {
5815 return -ENOMEM;
5816 }
5817
5818 dcmd = &cmd->frame->dcmd;
5819 el_info = dma_alloc_coherent(&instance->pdev->dev,
5820 sizeof(struct megasas_evt_log_info),
5821 &el_info_h, GFP_KERNEL);
5822 if (!el_info) {
5823 megasas_return_cmd(instance, cmd);
5824 return -ENOMEM;
5825 }
5826
5827 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
5828
5829 dcmd->cmd = MFI_CMD_DCMD;
5830 dcmd->cmd_status = 0x0;
5831 dcmd->sge_count = 1;
5832 dcmd->flags = MFI_FRAME_DIR_READ;
5833 dcmd->timeout = 0;
5834 dcmd->pad_0 = 0;
5835 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct megasas_evt_log_info));
5836 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_EVENT_GET_INFO);
5837
5838 megasas_set_dma_settings(instance, dcmd, el_info_h,
5839 sizeof(struct megasas_evt_log_info));
5840
5841 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS);
5842 if (ret != DCMD_SUCCESS) {
5843 dev_err(&instance->pdev->dev, "Failed from %s %d\n",
5844 __func__, __LINE__);
5845 goto dcmd_failed;
5846 }
5847
5848 /*
5849 * Copy the data back into callers buffer
5850 */
5851 eli->newest_seq_num = el_info->newest_seq_num;
5852 eli->oldest_seq_num = el_info->oldest_seq_num;
5853 eli->clear_seq_num = el_info->clear_seq_num;
5854 eli->shutdown_seq_num = el_info->shutdown_seq_num;
5855 eli->boot_seq_num = el_info->boot_seq_num;
5856
5857 dcmd_failed:
5858 dma_free_coherent(&instance->pdev->dev,
5859 sizeof(struct megasas_evt_log_info),
5860 el_info, el_info_h);
5861
5862 megasas_return_cmd(instance, cmd);
5863
5864 return ret;
5865 }
5866
5867 /**
5868 * megasas_register_aen - Registers for asynchronous event notification
5869 * @instance: Adapter soft state
5870 * @seq_num: The starting sequence number
5871 * @class_locale: Class of the event
5872 *
5873 * This function subscribes for AEN for events beyond the @seq_num. It requests
5874 * to be notified if and only if the event is of type @class_locale
5875 */
5876 static int
5877 megasas_register_aen(struct megasas_instance *instance, u32 seq_num,
5878 u32 class_locale_word)
5879 {
5880 int ret_val;
5881 struct megasas_cmd *cmd;
5882 struct megasas_dcmd_frame *dcmd;
5883 union megasas_evt_class_locale curr_aen;
5884 union megasas_evt_class_locale prev_aen;
5885
5886 /*
5887 * If there an AEN pending already (aen_cmd), check if the
5888 * class_locale of that pending AEN is inclusive of the new
5889 * AEN request we currently have. If it is, then we don't have
5890 * to do anything. In other words, whichever events the current
5891 * AEN request is subscribing to, have already been subscribed
5892 * to.
5893 *
5894 * If the old_cmd is _not_ inclusive, then we have to abort
5895 * that command, form a class_locale that is superset of both
5896 * old and current and re-issue to the FW
5897 */
5898
5899 curr_aen.word = class_locale_word;
5900
5901 if (instance->aen_cmd) {
5902
5903 prev_aen.word =
5904 le32_to_cpu(instance->aen_cmd->frame->dcmd.mbox.w[1]);
5905
5906 if ((curr_aen.members.class < MFI_EVT_CLASS_DEBUG) ||
5907 (curr_aen.members.class > MFI_EVT_CLASS_DEAD)) {
5908 dev_info(&instance->pdev->dev,
5909 "%s %d out of range class %d send by application\n",
5910 __func__, __LINE__, curr_aen.members.class);
5911 return 0;
5912 }
5913
5914 /*
5915 * A class whose enum value is smaller is inclusive of all
5916 * higher values. If a PROGRESS (= -1) was previously
5917 * registered, then a new registration requests for higher
5918 * classes need not be sent to FW. They are automatically
5919 * included.
5920 *
5921 * Locale numbers don't have such hierarchy. They are bitmap
5922 * values
5923 */
5924 if ((prev_aen.members.class <= curr_aen.members.class) &&
5925 !((prev_aen.members.locale & curr_aen.members.locale) ^
5926 curr_aen.members.locale)) {
5927 /*
5928 * Previously issued event registration includes
5929 * current request. Nothing to do.
5930 */
5931 return 0;
5932 } else {
5933 curr_aen.members.locale |= prev_aen.members.locale;
5934
5935 if (prev_aen.members.class < curr_aen.members.class)
5936 curr_aen.members.class = prev_aen.members.class;
5937
5938 instance->aen_cmd->abort_aen = 1;
5939 ret_val = megasas_issue_blocked_abort_cmd(instance,
5940 instance->
5941 aen_cmd, 30);
5942
5943 if (ret_val) {
5944 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to abort "
5945 "previous AEN command\n");
5946 return ret_val;
5947 }
5948 }
5949 }
5950
5951 cmd = megasas_get_cmd(instance);
5952
5953 if (!cmd)
5954 return -ENOMEM;
5955
5956 dcmd = &cmd->frame->dcmd;
5957
5958 memset(instance->evt_detail, 0, sizeof(struct megasas_evt_detail));
5959
5960 /*
5961 * Prepare DCMD for aen registration
5962 */
5963 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
5964
5965 dcmd->cmd = MFI_CMD_DCMD;
5966 dcmd->cmd_status = 0x0;
5967 dcmd->sge_count = 1;
5968 dcmd->flags = MFI_FRAME_DIR_READ;
5969 dcmd->timeout = 0;
5970 dcmd->pad_0 = 0;
5971 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct megasas_evt_detail));
5972 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_EVENT_WAIT);
5973 dcmd->mbox.w[0] = cpu_to_le32(seq_num);
5974 instance->last_seq_num = seq_num;
5975 dcmd->mbox.w[1] = cpu_to_le32(curr_aen.word);
5976
5977 megasas_set_dma_settings(instance, dcmd, instance->evt_detail_h,
5978 sizeof(struct megasas_evt_detail));
5979
5980 if (instance->aen_cmd != NULL) {
5981 megasas_return_cmd(instance, cmd);
5982 return 0;
5983 }
5984
5985 /*
5986 * Store reference to the cmd used to register for AEN. When an
5987 * application wants us to register for AEN, we have to abort this
5988 * cmd and re-register with a new EVENT LOCALE supplied by that app
5989 */
5990 instance->aen_cmd = cmd;
5991
5992 /*
5993 * Issue the aen registration frame
5994 */
5995 instance->instancet->issue_dcmd(instance, cmd);
5996
5997 return 0;
5998 }
5999
6000 /* megasas_get_target_prop - Send DCMD with below details to firmware.
6001 *
6002 * This DCMD will fetch few properties of LD/system PD defined
6003 * in MR_TARGET_DEV_PROPERTIES. eg. Queue Depth, MDTS value.
6004 *
6005 * DCMD send by drivers whenever new target is added to the OS.
6006 *
6007 * dcmd.opcode - MR_DCMD_DEV_GET_TARGET_PROP
6008 * dcmd.mbox.b[0] - DCMD is to be fired for LD or system PD.
6009 * 0 = system PD, 1 = LD.
6010 * dcmd.mbox.s[1] - TargetID for LD/system PD.
6011 * dcmd.sge IN - Pointer to return MR_TARGET_DEV_PROPERTIES.
6012 *
6013 * @instance: Adapter soft state
6014 * @sdev: OS provided scsi device
6015 *
6016 * Returns 0 on success non-zero on failure.
6017 */
6018 int
6019 megasas_get_target_prop(struct megasas_instance *instance,
6020 struct scsi_device *sdev)
6021 {
6022 int ret;
6023 struct megasas_cmd *cmd;
6024 struct megasas_dcmd_frame *dcmd;
6025 u16 targetId = (sdev->channel % 2) + sdev->id;
6026
6027 cmd = megasas_get_cmd(instance);
6028
6029 if (!cmd) {
6030 dev_err(&instance->pdev->dev,
6031 "Failed to get cmd %s\n", __func__);
6032 return -ENOMEM;
6033 }
6034
6035 dcmd = &cmd->frame->dcmd;
6036
6037 memset(instance->tgt_prop, 0, sizeof(*instance->tgt_prop));
6038 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
6039 dcmd->mbox.b[0] = MEGASAS_IS_LOGICAL(sdev);
6040
6041 dcmd->mbox.s[1] = cpu_to_le16(targetId);
6042 dcmd->cmd = MFI_CMD_DCMD;
6043 dcmd->cmd_status = 0xFF;
6044 dcmd->sge_count = 1;
6045 dcmd->flags = MFI_FRAME_DIR_READ;
6046 dcmd->timeout = 0;
6047 dcmd->pad_0 = 0;
6048 dcmd->data_xfer_len =
6049 cpu_to_le32(sizeof(struct MR_TARGET_PROPERTIES));
6050 dcmd->opcode = cpu_to_le32(MR_DCMD_DRV_GET_TARGET_PROP);
6051
6052 megasas_set_dma_settings(instance, dcmd, instance->tgt_prop_h,
6053 sizeof(struct MR_TARGET_PROPERTIES));
6054
6055 if ((instance->adapter_type != MFI_SERIES) &&
6056 !instance->mask_interrupts)
6057 ret = megasas_issue_blocked_cmd(instance,
6058 cmd, MFI_IO_TIMEOUT_SECS);
6059 else
6060 ret = megasas_issue_polled(instance, cmd);
6061
6062 switch (ret) {
6063 case DCMD_TIMEOUT:
6064 switch (dcmd_timeout_ocr_possible(instance)) {
6065 case INITIATE_OCR:
6066 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
6067 megasas_reset_fusion(instance->host,
6068 MFI_IO_TIMEOUT_OCR);
6069 break;
6070 case KILL_ADAPTER:
6071 megaraid_sas_kill_hba(instance);
6072 break;
6073 case IGNORE_TIMEOUT:
6074 dev_info(&instance->pdev->dev,
6075 "Ignore DCMD timeout: %s %d\n",
6076 __func__, __LINE__);
6077 break;
6078 }
6079 break;
6080
6081 default:
6082 megasas_return_cmd(instance, cmd);
6083 }
6084 if (ret != DCMD_SUCCESS)
6085 dev_err(&instance->pdev->dev,
6086 "return from %s %d return value %d\n",
6087 __func__, __LINE__, ret);
6088
6089 return ret;
6090 }
6091
6092 /**
6093 * megasas_start_aen - Subscribes to AEN during driver load time
6094 * @instance: Adapter soft state
6095 */
6096 static int megasas_start_aen(struct megasas_instance *instance)
6097 {
6098 struct megasas_evt_log_info eli;
6099 union megasas_evt_class_locale class_locale;
6100
6101 /*
6102 * Get the latest sequence number from FW
6103 */
6104 memset(&eli, 0, sizeof(eli));
6105
6106 if (megasas_get_seq_num(instance, &eli))
6107 return -1;
6108
6109 /*
6110 * Register AEN with FW for latest sequence number plus 1
6111 */
6112 class_locale.members.reserved = 0;
6113 class_locale.members.locale = MR_EVT_LOCALE_ALL;
6114 class_locale.members.class = MR_EVT_CLASS_DEBUG;
6115
6116 return megasas_register_aen(instance,
6117 le32_to_cpu(eli.newest_seq_num) + 1,
6118 class_locale.word);
6119 }
6120
6121 /**
6122 * megasas_io_attach - Attaches this driver to SCSI mid-layer
6123 * @instance: Adapter soft state
6124 */
6125 static int megasas_io_attach(struct megasas_instance *instance)
6126 {
6127 struct Scsi_Host *host = instance->host;
6128
6129 /*
6130 * Export parameters required by SCSI mid-layer
6131 */
6132 host->unique_id = instance->unique_id;
6133 host->can_queue = instance->max_scsi_cmds;
6134 host->this_id = instance->init_id;
6135 host->sg_tablesize = instance->max_num_sge;
6136
6137 if (instance->fw_support_ieee)
6138 instance->max_sectors_per_req = MEGASAS_MAX_SECTORS_IEEE;
6139
6140 /*
6141 * Check if the module parameter value for max_sectors can be used
6142 */
6143 if (max_sectors && max_sectors < instance->max_sectors_per_req)
6144 instance->max_sectors_per_req = max_sectors;
6145 else {
6146 if (max_sectors) {
6147 if (((instance->pdev->device ==
6148 PCI_DEVICE_ID_LSI_SAS1078GEN2) ||
6149 (instance->pdev->device ==
6150 PCI_DEVICE_ID_LSI_SAS0079GEN2)) &&
6151 (max_sectors <= MEGASAS_MAX_SECTORS)) {
6152 instance->max_sectors_per_req = max_sectors;
6153 } else {
6154 dev_info(&instance->pdev->dev, "max_sectors should be > 0"
6155 "and <= %d (or < 1MB for GEN2 controller)\n",
6156 instance->max_sectors_per_req);
6157 }
6158 }
6159 }
6160
6161 host->max_sectors = instance->max_sectors_per_req;
6162 host->cmd_per_lun = MEGASAS_DEFAULT_CMD_PER_LUN;
6163 host->max_channel = MEGASAS_MAX_CHANNELS - 1;
6164 host->max_id = MEGASAS_MAX_DEV_PER_CHANNEL;
6165 host->max_lun = MEGASAS_MAX_LUN;
6166 host->max_cmd_len = 16;
6167
6168 /*
6169 * Notify the mid-layer about the new controller
6170 */
6171 if (scsi_add_host(host, &instance->pdev->dev)) {
6172 dev_err(&instance->pdev->dev,
6173 "Failed to add host from %s %d\n",
6174 __func__, __LINE__);
6175 return -ENODEV;
6176 }
6177
6178 return 0;
6179 }
6180
6181 /**
6182 * megasas_set_dma_mask - Set DMA mask for supported controllers
6183 *
6184 * @instance: Adapter soft state
6185 * Description:
6186 *
6187 * For Ventura, driver/FW will operate in 63bit DMA addresses.
6188 *
6189 * For invader-
6190 * By default, driver/FW will operate in 32bit DMA addresses
6191 * for consistent DMA mapping but if 32 bit consistent
6192 * DMA mask fails, driver will try with 63 bit consistent
6193 * mask provided FW is true 63bit DMA capable
6194 *
6195 * For older controllers(Thunderbolt and MFI based adapters)-
6196 * driver/FW will operate in 32 bit consistent DMA addresses.
6197 */
6198 static int
6199 megasas_set_dma_mask(struct megasas_instance *instance)
6200 {
6201 u64 consistent_mask;
6202 struct pci_dev *pdev;
6203 u32 scratch_pad_1;
6204
6205 pdev = instance->pdev;
6206 consistent_mask = (instance->adapter_type >= VENTURA_SERIES) ?
6207 DMA_BIT_MASK(63) : DMA_BIT_MASK(32);
6208
6209 if (IS_DMA64) {
6210 if (dma_set_mask(&pdev->dev, DMA_BIT_MASK(63)) &&
6211 dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)))
6212 goto fail_set_dma_mask;
6213
6214 if ((*pdev->dev.dma_mask == DMA_BIT_MASK(63)) &&
6215 (dma_set_coherent_mask(&pdev->dev, consistent_mask) &&
6216 dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)))) {
6217 /*
6218 * If 32 bit DMA mask fails, then try for 64 bit mask
6219 * for FW capable of handling 64 bit DMA.
6220 */
6221 scratch_pad_1 = megasas_readl
6222 (instance, &instance->reg_set->outbound_scratch_pad_1);
6223
6224 if (!(scratch_pad_1 & MR_CAN_HANDLE_64_BIT_DMA_OFFSET))
6225 goto fail_set_dma_mask;
6226 else if (dma_set_mask_and_coherent(&pdev->dev,
6227 DMA_BIT_MASK(63)))
6228 goto fail_set_dma_mask;
6229 }
6230 } else if (dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)))
6231 goto fail_set_dma_mask;
6232
6233 if (pdev->dev.coherent_dma_mask == DMA_BIT_MASK(32))
6234 instance->consistent_mask_64bit = false;
6235 else
6236 instance->consistent_mask_64bit = true;
6237
6238 dev_info(&pdev->dev, "%s bit DMA mask and %s bit consistent mask\n",
6239 ((*pdev->dev.dma_mask == DMA_BIT_MASK(63)) ? "63" : "32"),
6240 (instance->consistent_mask_64bit ? "63" : "32"));
6241
6242 return 0;
6243
6244 fail_set_dma_mask:
6245 dev_err(&pdev->dev, "Failed to set DMA mask\n");
6246 return -1;
6247
6248 }
6249
6250 /*
6251 * megasas_set_adapter_type - Set adapter type.
6252 * Supported controllers can be divided in
6253 * different categories-
6254 * enum MR_ADAPTER_TYPE {
6255 * MFI_SERIES = 1,
6256 * THUNDERBOLT_SERIES = 2,
6257 * INVADER_SERIES = 3,
6258 * VENTURA_SERIES = 4,
6259 * AERO_SERIES = 5,
6260 * };
6261 * @instance: Adapter soft state
6262 * return: void
6263 */
6264 static inline void megasas_set_adapter_type(struct megasas_instance *instance)
6265 {
6266 if ((instance->pdev->vendor == PCI_VENDOR_ID_DELL) &&
6267 (instance->pdev->device == PCI_DEVICE_ID_DELL_PERC5)) {
6268 instance->adapter_type = MFI_SERIES;
6269 } else {
6270 switch (instance->pdev->device) {
6271 case PCI_DEVICE_ID_LSI_AERO_10E1:
6272 case PCI_DEVICE_ID_LSI_AERO_10E2:
6273 case PCI_DEVICE_ID_LSI_AERO_10E5:
6274 case PCI_DEVICE_ID_LSI_AERO_10E6:
6275 instance->adapter_type = AERO_SERIES;
6276 break;
6277 case PCI_DEVICE_ID_LSI_VENTURA:
6278 case PCI_DEVICE_ID_LSI_CRUSADER:
6279 case PCI_DEVICE_ID_LSI_HARPOON:
6280 case PCI_DEVICE_ID_LSI_TOMCAT:
6281 case PCI_DEVICE_ID_LSI_VENTURA_4PORT:
6282 case PCI_DEVICE_ID_LSI_CRUSADER_4PORT:
6283 instance->adapter_type = VENTURA_SERIES;
6284 break;
6285 case PCI_DEVICE_ID_LSI_FUSION:
6286 case PCI_DEVICE_ID_LSI_PLASMA:
6287 instance->adapter_type = THUNDERBOLT_SERIES;
6288 break;
6289 case PCI_DEVICE_ID_LSI_INVADER:
6290 case PCI_DEVICE_ID_LSI_INTRUDER:
6291 case PCI_DEVICE_ID_LSI_INTRUDER_24:
6292 case PCI_DEVICE_ID_LSI_CUTLASS_52:
6293 case PCI_DEVICE_ID_LSI_CUTLASS_53:
6294 case PCI_DEVICE_ID_LSI_FURY:
6295 instance->adapter_type = INVADER_SERIES;
6296 break;
6297 default: /* For all other supported controllers */
6298 instance->adapter_type = MFI_SERIES;
6299 break;
6300 }
6301 }
6302 }
6303
6304 static inline int megasas_alloc_mfi_ctrl_mem(struct megasas_instance *instance)
6305 {
6306 instance->producer = dma_alloc_coherent(&instance->pdev->dev,
6307 sizeof(u32), &instance->producer_h, GFP_KERNEL);
6308 instance->consumer = dma_alloc_coherent(&instance->pdev->dev,
6309 sizeof(u32), &instance->consumer_h, GFP_KERNEL);
6310
6311 if (!instance->producer || !instance->consumer) {
6312 dev_err(&instance->pdev->dev,
6313 "Failed to allocate memory for producer, consumer\n");
6314 return -1;
6315 }
6316
6317 *instance->producer = 0;
6318 *instance->consumer = 0;
6319 return 0;
6320 }
6321
6322 /**
6323 * megasas_alloc_ctrl_mem - Allocate per controller memory for core data
6324 * structures which are not common across MFI
6325 * adapters and fusion adapters.
6326 * For MFI based adapters, allocate producer and
6327 * consumer buffers. For fusion adapters, allocate
6328 * memory for fusion context.
6329 * @instance: Adapter soft state
6330 * return: 0 for SUCCESS
6331 */
6332 static int megasas_alloc_ctrl_mem(struct megasas_instance *instance)
6333 {
6334 instance->reply_map = kcalloc(nr_cpu_ids, sizeof(unsigned int),
6335 GFP_KERNEL);
6336 if (!instance->reply_map)
6337 return -ENOMEM;
6338
6339 switch (instance->adapter_type) {
6340 case MFI_SERIES:
6341 if (megasas_alloc_mfi_ctrl_mem(instance))
6342 goto fail;
6343 break;
6344 case AERO_SERIES:
6345 case VENTURA_SERIES:
6346 case THUNDERBOLT_SERIES:
6347 case INVADER_SERIES:
6348 if (megasas_alloc_fusion_context(instance))
6349 goto fail;
6350 break;
6351 }
6352
6353 return 0;
6354 fail:
6355 kfree(instance->reply_map);
6356 instance->reply_map = NULL;
6357 return -ENOMEM;
6358 }
6359
6360 /*
6361 * megasas_free_ctrl_mem - Free fusion context for fusion adapters and
6362 * producer, consumer buffers for MFI adapters
6363 *
6364 * @instance - Adapter soft instance
6365 *
6366 */
6367 static inline void megasas_free_ctrl_mem(struct megasas_instance *instance)
6368 {
6369 kfree(instance->reply_map);
6370 if (instance->adapter_type == MFI_SERIES) {
6371 if (instance->producer)
6372 dma_free_coherent(&instance->pdev->dev, sizeof(u32),
6373 instance->producer,
6374 instance->producer_h);
6375 if (instance->consumer)
6376 dma_free_coherent(&instance->pdev->dev, sizeof(u32),
6377 instance->consumer,
6378 instance->consumer_h);
6379 } else {
6380 megasas_free_fusion_context(instance);
6381 }
6382 }
6383
6384 /**
6385 * megasas_alloc_ctrl_dma_buffers - Allocate consistent DMA buffers during
6386 * driver load time
6387 *
6388 * @instance- Adapter soft instance
6389 * @return- O for SUCCESS
6390 */
6391 static inline
6392 int megasas_alloc_ctrl_dma_buffers(struct megasas_instance *instance)
6393 {
6394 struct pci_dev *pdev = instance->pdev;
6395 struct fusion_context *fusion = instance->ctrl_context;
6396
6397 instance->evt_detail = dma_alloc_coherent(&pdev->dev,
6398 sizeof(struct megasas_evt_detail),
6399 &instance->evt_detail_h, GFP_KERNEL);
6400
6401 if (!instance->evt_detail) {
6402 dev_err(&instance->pdev->dev,
6403 "Failed to allocate event detail buffer\n");
6404 return -ENOMEM;
6405 }
6406
6407 if (fusion) {
6408 fusion->ioc_init_request =
6409 dma_alloc_coherent(&pdev->dev,
6410 sizeof(struct MPI2_IOC_INIT_REQUEST),
6411 &fusion->ioc_init_request_phys,
6412 GFP_KERNEL);
6413
6414 if (!fusion->ioc_init_request) {
6415 dev_err(&pdev->dev,
6416 "Failed to allocate PD list buffer\n");
6417 return -ENOMEM;
6418 }
6419
6420 instance->snapdump_prop = dma_alloc_coherent(&pdev->dev,
6421 sizeof(struct MR_SNAPDUMP_PROPERTIES),
6422 &instance->snapdump_prop_h, GFP_KERNEL);
6423
6424 if (!instance->snapdump_prop)
6425 dev_err(&pdev->dev,
6426 "Failed to allocate snapdump properties buffer\n");
6427 }
6428
6429 instance->pd_list_buf =
6430 dma_alloc_coherent(&pdev->dev,
6431 MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST),
6432 &instance->pd_list_buf_h, GFP_KERNEL);
6433
6434 if (!instance->pd_list_buf) {
6435 dev_err(&pdev->dev, "Failed to allocate PD list buffer\n");
6436 return -ENOMEM;
6437 }
6438
6439 instance->ctrl_info_buf =
6440 dma_alloc_coherent(&pdev->dev,
6441 sizeof(struct megasas_ctrl_info),
6442 &instance->ctrl_info_buf_h, GFP_KERNEL);
6443
6444 if (!instance->ctrl_info_buf) {
6445 dev_err(&pdev->dev,
6446 "Failed to allocate controller info buffer\n");
6447 return -ENOMEM;
6448 }
6449
6450 instance->ld_list_buf =
6451 dma_alloc_coherent(&pdev->dev,
6452 sizeof(struct MR_LD_LIST),
6453 &instance->ld_list_buf_h, GFP_KERNEL);
6454
6455 if (!instance->ld_list_buf) {
6456 dev_err(&pdev->dev, "Failed to allocate LD list buffer\n");
6457 return -ENOMEM;
6458 }
6459
6460 instance->ld_targetid_list_buf =
6461 dma_alloc_coherent(&pdev->dev,
6462 sizeof(struct MR_LD_TARGETID_LIST),
6463 &instance->ld_targetid_list_buf_h, GFP_KERNEL);
6464
6465 if (!instance->ld_targetid_list_buf) {
6466 dev_err(&pdev->dev,
6467 "Failed to allocate LD targetid list buffer\n");
6468 return -ENOMEM;
6469 }
6470
6471 if (!reset_devices) {
6472 instance->system_info_buf =
6473 dma_alloc_coherent(&pdev->dev,
6474 sizeof(struct MR_DRV_SYSTEM_INFO),
6475 &instance->system_info_h, GFP_KERNEL);
6476 instance->pd_info =
6477 dma_alloc_coherent(&pdev->dev,
6478 sizeof(struct MR_PD_INFO),
6479 &instance->pd_info_h, GFP_KERNEL);
6480 instance->tgt_prop =
6481 dma_alloc_coherent(&pdev->dev,
6482 sizeof(struct MR_TARGET_PROPERTIES),
6483 &instance->tgt_prop_h, GFP_KERNEL);
6484 instance->crash_dump_buf =
6485 dma_alloc_coherent(&pdev->dev, CRASH_DMA_BUF_SIZE,
6486 &instance->crash_dump_h, GFP_KERNEL);
6487
6488 if (!instance->system_info_buf)
6489 dev_err(&instance->pdev->dev,
6490 "Failed to allocate system info buffer\n");
6491
6492 if (!instance->pd_info)
6493 dev_err(&instance->pdev->dev,
6494 "Failed to allocate pd_info buffer\n");
6495
6496 if (!instance->tgt_prop)
6497 dev_err(&instance->pdev->dev,
6498 "Failed to allocate tgt_prop buffer\n");
6499
6500 if (!instance->crash_dump_buf)
6501 dev_err(&instance->pdev->dev,
6502 "Failed to allocate crash dump buffer\n");
6503 }
6504
6505 return 0;
6506 }
6507
6508 /*
6509 * megasas_free_ctrl_dma_buffers - Free consistent DMA buffers allocated
6510 * during driver load time
6511 *
6512 * @instance- Adapter soft instance
6513 *
6514 */
6515 static inline
6516 void megasas_free_ctrl_dma_buffers(struct megasas_instance *instance)
6517 {
6518 struct pci_dev *pdev = instance->pdev;
6519 struct fusion_context *fusion = instance->ctrl_context;
6520
6521 if (instance->evt_detail)
6522 dma_free_coherent(&pdev->dev, sizeof(struct megasas_evt_detail),
6523 instance->evt_detail,
6524 instance->evt_detail_h);
6525
6526 if (fusion && fusion->ioc_init_request)
6527 dma_free_coherent(&pdev->dev,
6528 sizeof(struct MPI2_IOC_INIT_REQUEST),
6529 fusion->ioc_init_request,
6530 fusion->ioc_init_request_phys);
6531
6532 if (instance->pd_list_buf)
6533 dma_free_coherent(&pdev->dev,
6534 MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST),
6535 instance->pd_list_buf,
6536 instance->pd_list_buf_h);
6537
6538 if (instance->ld_list_buf)
6539 dma_free_coherent(&pdev->dev, sizeof(struct MR_LD_LIST),
6540 instance->ld_list_buf,
6541 instance->ld_list_buf_h);
6542
6543 if (instance->ld_targetid_list_buf)
6544 dma_free_coherent(&pdev->dev, sizeof(struct MR_LD_TARGETID_LIST),
6545 instance->ld_targetid_list_buf,
6546 instance->ld_targetid_list_buf_h);
6547
6548 if (instance->ctrl_info_buf)
6549 dma_free_coherent(&pdev->dev, sizeof(struct megasas_ctrl_info),
6550 instance->ctrl_info_buf,
6551 instance->ctrl_info_buf_h);
6552
6553 if (instance->system_info_buf)
6554 dma_free_coherent(&pdev->dev, sizeof(struct MR_DRV_SYSTEM_INFO),
6555 instance->system_info_buf,
6556 instance->system_info_h);
6557
6558 if (instance->pd_info)
6559 dma_free_coherent(&pdev->dev, sizeof(struct MR_PD_INFO),
6560 instance->pd_info, instance->pd_info_h);
6561
6562 if (instance->tgt_prop)
6563 dma_free_coherent(&pdev->dev, sizeof(struct MR_TARGET_PROPERTIES),
6564 instance->tgt_prop, instance->tgt_prop_h);
6565
6566 if (instance->crash_dump_buf)
6567 dma_free_coherent(&pdev->dev, CRASH_DMA_BUF_SIZE,
6568 instance->crash_dump_buf,
6569 instance->crash_dump_h);
6570
6571 if (instance->snapdump_prop)
6572 dma_free_coherent(&pdev->dev,
6573 sizeof(struct MR_SNAPDUMP_PROPERTIES),
6574 instance->snapdump_prop,
6575 instance->snapdump_prop_h);
6576 }
6577
6578 /*
6579 * megasas_init_ctrl_params - Initialize controller's instance
6580 * parameters before FW init
6581 * @instance - Adapter soft instance
6582 * @return - void
6583 */
6584 static inline void megasas_init_ctrl_params(struct megasas_instance *instance)
6585 {
6586 instance->fw_crash_state = UNAVAILABLE;
6587
6588 megasas_poll_wait_aen = 0;
6589 instance->issuepend_done = 1;
6590 atomic_set(&instance->adprecovery, MEGASAS_HBA_OPERATIONAL);
6591
6592 /*
6593 * Initialize locks and queues
6594 */
6595 INIT_LIST_HEAD(&instance->cmd_pool);
6596 INIT_LIST_HEAD(&instance->internal_reset_pending_q);
6597
6598 atomic_set(&instance->fw_outstanding, 0);
6599
6600 init_waitqueue_head(&instance->int_cmd_wait_q);
6601 init_waitqueue_head(&instance->abort_cmd_wait_q);
6602
6603 spin_lock_init(&instance->crashdump_lock);
6604 spin_lock_init(&instance->mfi_pool_lock);
6605 spin_lock_init(&instance->hba_lock);
6606 spin_lock_init(&instance->stream_lock);
6607 spin_lock_init(&instance->completion_lock);
6608
6609 mutex_init(&instance->reset_mutex);
6610
6611 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
6612 (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY))
6613 instance->flag_ieee = 1;
6614
6615 megasas_dbg_lvl = 0;
6616 instance->flag = 0;
6617 instance->unload = 1;
6618 instance->last_time = 0;
6619 instance->disableOnlineCtrlReset = 1;
6620 instance->UnevenSpanSupport = 0;
6621
6622 if (instance->adapter_type != MFI_SERIES)
6623 INIT_WORK(&instance->work_init, megasas_fusion_ocr_wq);
6624 else
6625 INIT_WORK(&instance->work_init, process_fw_state_change_wq);
6626 }
6627
6628 /**
6629 * megasas_probe_one - PCI hotplug entry point
6630 * @pdev: PCI device structure
6631 * @id: PCI ids of supported hotplugged adapter
6632 */
6633 static int megasas_probe_one(struct pci_dev *pdev,
6634 const struct pci_device_id *id)
6635 {
6636 int rval, pos;
6637 struct Scsi_Host *host;
6638 struct megasas_instance *instance;
6639 u16 control = 0;
6640
6641 switch (pdev->device) {
6642 case PCI_DEVICE_ID_LSI_AERO_10E1:
6643 case PCI_DEVICE_ID_LSI_AERO_10E5:
6644 dev_info(&pdev->dev, "Adapter is in configurable secure mode\n");
6645 break;
6646 }
6647
6648 /* Reset MSI-X in the kdump kernel */
6649 if (reset_devices) {
6650 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
6651 if (pos) {
6652 pci_read_config_word(pdev, pos + PCI_MSIX_FLAGS,
6653 &control);
6654 if (control & PCI_MSIX_FLAGS_ENABLE) {
6655 dev_info(&pdev->dev, "resetting MSI-X\n");
6656 pci_write_config_word(pdev,
6657 pos + PCI_MSIX_FLAGS,
6658 control &
6659 ~PCI_MSIX_FLAGS_ENABLE);
6660 }
6661 }
6662 }
6663
6664 /*
6665 * PCI prepping: enable device set bus mastering and dma mask
6666 */
6667 rval = pci_enable_device_mem(pdev);
6668
6669 if (rval) {
6670 return rval;
6671 }
6672
6673 pci_set_master(pdev);
6674
6675 host = scsi_host_alloc(&megasas_template,
6676 sizeof(struct megasas_instance));
6677
6678 if (!host) {
6679 dev_printk(KERN_DEBUG, &pdev->dev, "scsi_host_alloc failed\n");
6680 goto fail_alloc_instance;
6681 }
6682
6683 instance = (struct megasas_instance *)host->hostdata;
6684 memset(instance, 0, sizeof(*instance));
6685 atomic_set(&instance->fw_reset_no_pci_access, 0);
6686
6687 /*
6688 * Initialize PCI related and misc parameters
6689 */
6690 instance->pdev = pdev;
6691 instance->host = host;
6692 instance->unique_id = pdev->bus->number << 8 | pdev->devfn;
6693 instance->init_id = MEGASAS_DEFAULT_INIT_ID;
6694
6695 megasas_set_adapter_type(instance);
6696
6697 /*
6698 * Initialize MFI Firmware
6699 */
6700 if (megasas_init_fw(instance))
6701 goto fail_init_mfi;
6702
6703 if (instance->requestorId) {
6704 if (instance->PlasmaFW111) {
6705 instance->vf_affiliation_111 =
6706 dma_alloc_coherent(&pdev->dev,
6707 sizeof(struct MR_LD_VF_AFFILIATION_111),
6708 &instance->vf_affiliation_111_h,
6709 GFP_KERNEL);
6710 if (!instance->vf_affiliation_111)
6711 dev_warn(&pdev->dev, "Can't allocate "
6712 "memory for VF affiliation buffer\n");
6713 } else {
6714 instance->vf_affiliation =
6715 dma_alloc_coherent(&pdev->dev,
6716 (MAX_LOGICAL_DRIVES + 1) *
6717 sizeof(struct MR_LD_VF_AFFILIATION),
6718 &instance->vf_affiliation_h,
6719 GFP_KERNEL);
6720 if (!instance->vf_affiliation)
6721 dev_warn(&pdev->dev, "Can't allocate "
6722 "memory for VF affiliation buffer\n");
6723 }
6724 }
6725
6726 /*
6727 * Store instance in PCI softstate
6728 */
6729 pci_set_drvdata(pdev, instance);
6730
6731 /*
6732 * Add this controller to megasas_mgmt_info structure so that it
6733 * can be exported to management applications
6734 */
6735 megasas_mgmt_info.count++;
6736 megasas_mgmt_info.instance[megasas_mgmt_info.max_index] = instance;
6737 megasas_mgmt_info.max_index++;
6738
6739 /*
6740 * Register with SCSI mid-layer
6741 */
6742 if (megasas_io_attach(instance))
6743 goto fail_io_attach;
6744
6745 instance->unload = 0;
6746 /*
6747 * Trigger SCSI to scan our drives
6748 */
6749 scsi_scan_host(host);
6750
6751 /*
6752 * Initiate AEN (Asynchronous Event Notification)
6753 */
6754 if (megasas_start_aen(instance)) {
6755 dev_printk(KERN_DEBUG, &pdev->dev, "start aen failed\n");
6756 goto fail_start_aen;
6757 }
6758
6759 /* Get current SR-IOV LD/VF affiliation */
6760 if (instance->requestorId)
6761 megasas_get_ld_vf_affiliation(instance, 1);
6762
6763 return 0;
6764
6765 fail_start_aen:
6766 fail_io_attach:
6767 megasas_mgmt_info.count--;
6768 megasas_mgmt_info.max_index--;
6769 megasas_mgmt_info.instance[megasas_mgmt_info.max_index] = NULL;
6770
6771 instance->instancet->disable_intr(instance);
6772 megasas_destroy_irqs(instance);
6773
6774 if (instance->adapter_type != MFI_SERIES)
6775 megasas_release_fusion(instance);
6776 else
6777 megasas_release_mfi(instance);
6778 if (instance->msix_vectors)
6779 pci_free_irq_vectors(instance->pdev);
6780 fail_init_mfi:
6781 scsi_host_put(host);
6782 fail_alloc_instance:
6783 pci_disable_device(pdev);
6784
6785 return -ENODEV;
6786 }
6787
6788 /**
6789 * megasas_flush_cache - Requests FW to flush all its caches
6790 * @instance: Adapter soft state
6791 */
6792 static void megasas_flush_cache(struct megasas_instance *instance)
6793 {
6794 struct megasas_cmd *cmd;
6795 struct megasas_dcmd_frame *dcmd;
6796
6797 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR)
6798 return;
6799
6800 cmd = megasas_get_cmd(instance);
6801
6802 if (!cmd)
6803 return;
6804
6805 dcmd = &cmd->frame->dcmd;
6806
6807 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
6808
6809 dcmd->cmd = MFI_CMD_DCMD;
6810 dcmd->cmd_status = 0x0;
6811 dcmd->sge_count = 0;
6812 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_NONE);
6813 dcmd->timeout = 0;
6814 dcmd->pad_0 = 0;
6815 dcmd->data_xfer_len = 0;
6816 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_CACHE_FLUSH);
6817 dcmd->mbox.b[0] = MR_FLUSH_CTRL_CACHE | MR_FLUSH_DISK_CACHE;
6818
6819 if (megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS)
6820 != DCMD_SUCCESS) {
6821 dev_err(&instance->pdev->dev,
6822 "return from %s %d\n", __func__, __LINE__);
6823 return;
6824 }
6825
6826 megasas_return_cmd(instance, cmd);
6827 }
6828
6829 /**
6830 * megasas_shutdown_controller - Instructs FW to shutdown the controller
6831 * @instance: Adapter soft state
6832 * @opcode: Shutdown/Hibernate
6833 */
6834 static void megasas_shutdown_controller(struct megasas_instance *instance,
6835 u32 opcode)
6836 {
6837 struct megasas_cmd *cmd;
6838 struct megasas_dcmd_frame *dcmd;
6839
6840 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR)
6841 return;
6842
6843 cmd = megasas_get_cmd(instance);
6844
6845 if (!cmd)
6846 return;
6847
6848 if (instance->aen_cmd)
6849 megasas_issue_blocked_abort_cmd(instance,
6850 instance->aen_cmd, MFI_IO_TIMEOUT_SECS);
6851 if (instance->map_update_cmd)
6852 megasas_issue_blocked_abort_cmd(instance,
6853 instance->map_update_cmd, MFI_IO_TIMEOUT_SECS);
6854 if (instance->jbod_seq_cmd)
6855 megasas_issue_blocked_abort_cmd(instance,
6856 instance->jbod_seq_cmd, MFI_IO_TIMEOUT_SECS);
6857
6858 dcmd = &cmd->frame->dcmd;
6859
6860 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
6861
6862 dcmd->cmd = MFI_CMD_DCMD;
6863 dcmd->cmd_status = 0x0;
6864 dcmd->sge_count = 0;
6865 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_NONE);
6866 dcmd->timeout = 0;
6867 dcmd->pad_0 = 0;
6868 dcmd->data_xfer_len = 0;
6869 dcmd->opcode = cpu_to_le32(opcode);
6870
6871 if (megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS)
6872 != DCMD_SUCCESS) {
6873 dev_err(&instance->pdev->dev,
6874 "return from %s %d\n", __func__, __LINE__);
6875 return;
6876 }
6877
6878 megasas_return_cmd(instance, cmd);
6879 }
6880
6881 #ifdef CONFIG_PM
6882 /**
6883 * megasas_suspend - driver suspend entry point
6884 * @pdev: PCI device structure
6885 * @state: PCI power state to suspend routine
6886 */
6887 static int
6888 megasas_suspend(struct pci_dev *pdev, pm_message_t state)
6889 {
6890 struct Scsi_Host *host;
6891 struct megasas_instance *instance;
6892
6893 instance = pci_get_drvdata(pdev);
6894 host = instance->host;
6895 instance->unload = 1;
6896
6897 /* Shutdown SR-IOV heartbeat timer */
6898 if (instance->requestorId && !instance->skip_heartbeat_timer_del)
6899 del_timer_sync(&instance->sriov_heartbeat_timer);
6900
6901 /* Stop the FW fault detection watchdog */
6902 if (instance->adapter_type != MFI_SERIES)
6903 megasas_fusion_stop_watchdog(instance);
6904
6905 megasas_flush_cache(instance);
6906 megasas_shutdown_controller(instance, MR_DCMD_HIBERNATE_SHUTDOWN);
6907
6908 /* cancel the delayed work if this work still in queue */
6909 if (instance->ev != NULL) {
6910 struct megasas_aen_event *ev = instance->ev;
6911 cancel_delayed_work_sync(&ev->hotplug_work);
6912 instance->ev = NULL;
6913 }
6914
6915 tasklet_kill(&instance->isr_tasklet);
6916
6917 pci_set_drvdata(instance->pdev, instance);
6918 instance->instancet->disable_intr(instance);
6919
6920 megasas_destroy_irqs(instance);
6921
6922 if (instance->msix_vectors)
6923 pci_free_irq_vectors(instance->pdev);
6924
6925 pci_save_state(pdev);
6926 pci_disable_device(pdev);
6927
6928 pci_set_power_state(pdev, pci_choose_state(pdev, state));
6929
6930 return 0;
6931 }
6932
6933 /**
6934 * megasas_resume- driver resume entry point
6935 * @pdev: PCI device structure
6936 */
6937 static int
6938 megasas_resume(struct pci_dev *pdev)
6939 {
6940 int rval;
6941 struct Scsi_Host *host;
6942 struct megasas_instance *instance;
6943 int irq_flags = PCI_IRQ_LEGACY;
6944
6945 instance = pci_get_drvdata(pdev);
6946 host = instance->host;
6947 pci_set_power_state(pdev, PCI_D0);
6948 pci_enable_wake(pdev, PCI_D0, 0);
6949 pci_restore_state(pdev);
6950
6951 /*
6952 * PCI prepping: enable device set bus mastering and dma mask
6953 */
6954 rval = pci_enable_device_mem(pdev);
6955
6956 if (rval) {
6957 dev_err(&pdev->dev, "Enable device failed\n");
6958 return rval;
6959 }
6960
6961 pci_set_master(pdev);
6962
6963 /*
6964 * We expect the FW state to be READY
6965 */
6966 if (megasas_transition_to_ready(instance, 0))
6967 goto fail_ready_state;
6968
6969 if (megasas_set_dma_mask(instance))
6970 goto fail_set_dma_mask;
6971
6972 /*
6973 * Initialize MFI Firmware
6974 */
6975
6976 atomic_set(&instance->fw_outstanding, 0);
6977 atomic_set(&instance->ldio_outstanding, 0);
6978
6979 /* Now re-enable MSI-X */
6980 if (instance->msix_vectors) {
6981 irq_flags = PCI_IRQ_MSIX;
6982 if (smp_affinity_enable)
6983 irq_flags |= PCI_IRQ_AFFINITY;
6984 }
6985 rval = pci_alloc_irq_vectors(instance->pdev, 1,
6986 instance->msix_vectors ?
6987 instance->msix_vectors : 1, irq_flags);
6988 if (rval < 0)
6989 goto fail_reenable_msix;
6990
6991 megasas_setup_reply_map(instance);
6992
6993 if (instance->adapter_type != MFI_SERIES) {
6994 megasas_reset_reply_desc(instance);
6995 if (megasas_ioc_init_fusion(instance)) {
6996 megasas_free_cmds(instance);
6997 megasas_free_cmds_fusion(instance);
6998 goto fail_init_mfi;
6999 }
7000 if (!megasas_get_map_info(instance))
7001 megasas_sync_map_info(instance);
7002 } else {
7003 *instance->producer = 0;
7004 *instance->consumer = 0;
7005 if (megasas_issue_init_mfi(instance))
7006 goto fail_init_mfi;
7007 }
7008
7009 if (megasas_get_ctrl_info(instance) != DCMD_SUCCESS)
7010 goto fail_init_mfi;
7011
7012 tasklet_init(&instance->isr_tasklet, instance->instancet->tasklet,
7013 (unsigned long)instance);
7014
7015 if (instance->msix_vectors ?
7016 megasas_setup_irqs_msix(instance, 0) :
7017 megasas_setup_irqs_ioapic(instance))
7018 goto fail_init_mfi;
7019
7020 /* Re-launch SR-IOV heartbeat timer */
7021 if (instance->requestorId) {
7022 if (!megasas_sriov_start_heartbeat(instance, 0))
7023 megasas_start_timer(instance);
7024 else {
7025 instance->skip_heartbeat_timer_del = 1;
7026 goto fail_init_mfi;
7027 }
7028 }
7029
7030 instance->instancet->enable_intr(instance);
7031 megasas_setup_jbod_map(instance);
7032 instance->unload = 0;
7033
7034 /*
7035 * Initiate AEN (Asynchronous Event Notification)
7036 */
7037 if (megasas_start_aen(instance))
7038 dev_err(&instance->pdev->dev, "Start AEN failed\n");
7039
7040 /* Re-launch FW fault watchdog */
7041 if (instance->adapter_type != MFI_SERIES)
7042 if (megasas_fusion_start_watchdog(instance) != SUCCESS)
7043 goto fail_start_watchdog;
7044
7045 return 0;
7046
7047 fail_start_watchdog:
7048 if (instance->requestorId && !instance->skip_heartbeat_timer_del)
7049 del_timer_sync(&instance->sriov_heartbeat_timer);
7050 fail_init_mfi:
7051 megasas_free_ctrl_dma_buffers(instance);
7052 megasas_free_ctrl_mem(instance);
7053 scsi_host_put(host);
7054
7055 fail_reenable_msix:
7056 fail_set_dma_mask:
7057 fail_ready_state:
7058
7059 pci_disable_device(pdev);
7060
7061 return -ENODEV;
7062 }
7063 #else
7064 #define megasas_suspend NULL
7065 #define megasas_resume NULL
7066 #endif
7067
7068 static inline int
7069 megasas_wait_for_adapter_operational(struct megasas_instance *instance)
7070 {
7071 int wait_time = MEGASAS_RESET_WAIT_TIME * 2;
7072 int i;
7073 u8 adp_state;
7074
7075 for (i = 0; i < wait_time; i++) {
7076 adp_state = atomic_read(&instance->adprecovery);
7077 if ((adp_state == MEGASAS_HBA_OPERATIONAL) ||
7078 (adp_state == MEGASAS_HW_CRITICAL_ERROR))
7079 break;
7080
7081 if (!(i % MEGASAS_RESET_NOTICE_INTERVAL))
7082 dev_notice(&instance->pdev->dev, "waiting for controller reset to finish\n");
7083
7084 msleep(1000);
7085 }
7086
7087 if (adp_state != MEGASAS_HBA_OPERATIONAL) {
7088 dev_info(&instance->pdev->dev,
7089 "%s HBA failed to become operational, adp_state %d\n",
7090 __func__, adp_state);
7091 return 1;
7092 }
7093
7094 return 0;
7095 }
7096
7097 /**
7098 * megasas_detach_one - PCI hot"un"plug entry point
7099 * @pdev: PCI device structure
7100 */
7101 static void megasas_detach_one(struct pci_dev *pdev)
7102 {
7103 int i;
7104 struct Scsi_Host *host;
7105 struct megasas_instance *instance;
7106 struct fusion_context *fusion;
7107 u32 pd_seq_map_sz;
7108
7109 instance = pci_get_drvdata(pdev);
7110 host = instance->host;
7111 fusion = instance->ctrl_context;
7112
7113 /* Shutdown SR-IOV heartbeat timer */
7114 if (instance->requestorId && !instance->skip_heartbeat_timer_del)
7115 del_timer_sync(&instance->sriov_heartbeat_timer);
7116
7117 /* Stop the FW fault detection watchdog */
7118 if (instance->adapter_type != MFI_SERIES)
7119 megasas_fusion_stop_watchdog(instance);
7120
7121 if (instance->fw_crash_state != UNAVAILABLE)
7122 megasas_free_host_crash_buffer(instance);
7123 scsi_remove_host(instance->host);
7124 instance->unload = 1;
7125
7126 if (megasas_wait_for_adapter_operational(instance))
7127 goto skip_firing_dcmds;
7128
7129 megasas_flush_cache(instance);
7130 megasas_shutdown_controller(instance, MR_DCMD_CTRL_SHUTDOWN);
7131
7132 skip_firing_dcmds:
7133 /* cancel the delayed work if this work still in queue*/
7134 if (instance->ev != NULL) {
7135 struct megasas_aen_event *ev = instance->ev;
7136 cancel_delayed_work_sync(&ev->hotplug_work);
7137 instance->ev = NULL;
7138 }
7139
7140 /* cancel all wait events */
7141 wake_up_all(&instance->int_cmd_wait_q);
7142
7143 tasklet_kill(&instance->isr_tasklet);
7144
7145 /*
7146 * Take the instance off the instance array. Note that we will not
7147 * decrement the max_index. We let this array be sparse array
7148 */
7149 for (i = 0; i < megasas_mgmt_info.max_index; i++) {
7150 if (megasas_mgmt_info.instance[i] == instance) {
7151 megasas_mgmt_info.count--;
7152 megasas_mgmt_info.instance[i] = NULL;
7153
7154 break;
7155 }
7156 }
7157
7158 instance->instancet->disable_intr(instance);
7159
7160 megasas_destroy_irqs(instance);
7161
7162 if (instance->msix_vectors)
7163 pci_free_irq_vectors(instance->pdev);
7164
7165 if (instance->adapter_type >= VENTURA_SERIES) {
7166 for (i = 0; i < MAX_LOGICAL_DRIVES_EXT; ++i)
7167 kfree(fusion->stream_detect_by_ld[i]);
7168 kfree(fusion->stream_detect_by_ld);
7169 fusion->stream_detect_by_ld = NULL;
7170 }
7171
7172
7173 if (instance->adapter_type != MFI_SERIES) {
7174 megasas_release_fusion(instance);
7175 pd_seq_map_sz = sizeof(struct MR_PD_CFG_SEQ_NUM_SYNC) +
7176 (sizeof(struct MR_PD_CFG_SEQ) *
7177 (MAX_PHYSICAL_DEVICES - 1));
7178 for (i = 0; i < 2 ; i++) {
7179 if (fusion->ld_map[i])
7180 dma_free_coherent(&instance->pdev->dev,
7181 fusion->max_map_sz,
7182 fusion->ld_map[i],
7183 fusion->ld_map_phys[i]);
7184 if (fusion->ld_drv_map[i]) {
7185 if (is_vmalloc_addr(fusion->ld_drv_map[i]))
7186 vfree(fusion->ld_drv_map[i]);
7187 else
7188 free_pages((ulong)fusion->ld_drv_map[i],
7189 fusion->drv_map_pages);
7190 }
7191
7192 if (fusion->pd_seq_sync[i])
7193 dma_free_coherent(&instance->pdev->dev,
7194 pd_seq_map_sz,
7195 fusion->pd_seq_sync[i],
7196 fusion->pd_seq_phys[i]);
7197 }
7198 } else {
7199 megasas_release_mfi(instance);
7200 }
7201
7202 if (instance->vf_affiliation)
7203 dma_free_coherent(&pdev->dev, (MAX_LOGICAL_DRIVES + 1) *
7204 sizeof(struct MR_LD_VF_AFFILIATION),
7205 instance->vf_affiliation,
7206 instance->vf_affiliation_h);
7207
7208 if (instance->vf_affiliation_111)
7209 dma_free_coherent(&pdev->dev,
7210 sizeof(struct MR_LD_VF_AFFILIATION_111),
7211 instance->vf_affiliation_111,
7212 instance->vf_affiliation_111_h);
7213
7214 if (instance->hb_host_mem)
7215 dma_free_coherent(&pdev->dev, sizeof(struct MR_CTRL_HB_HOST_MEM),
7216 instance->hb_host_mem,
7217 instance->hb_host_mem_h);
7218
7219 megasas_free_ctrl_dma_buffers(instance);
7220
7221 megasas_free_ctrl_mem(instance);
7222
7223 scsi_host_put(host);
7224
7225 pci_disable_device(pdev);
7226 }
7227
7228 /**
7229 * megasas_shutdown - Shutdown entry point
7230 * @device: Generic device structure
7231 */
7232 static void megasas_shutdown(struct pci_dev *pdev)
7233 {
7234 struct megasas_instance *instance = pci_get_drvdata(pdev);
7235
7236 instance->unload = 1;
7237
7238 if (megasas_wait_for_adapter_operational(instance))
7239 goto skip_firing_dcmds;
7240
7241 megasas_flush_cache(instance);
7242 megasas_shutdown_controller(instance, MR_DCMD_CTRL_SHUTDOWN);
7243
7244 skip_firing_dcmds:
7245 instance->instancet->disable_intr(instance);
7246 megasas_destroy_irqs(instance);
7247
7248 if (instance->msix_vectors)
7249 pci_free_irq_vectors(instance->pdev);
7250 }
7251
7252 /**
7253 * megasas_mgmt_open - char node "open" entry point
7254 */
7255 static int megasas_mgmt_open(struct inode *inode, struct file *filep)
7256 {
7257 /*
7258 * Allow only those users with admin rights
7259 */
7260 if (!capable(CAP_SYS_ADMIN))
7261 return -EACCES;
7262
7263 return 0;
7264 }
7265
7266 /**
7267 * megasas_mgmt_fasync - Async notifier registration from applications
7268 *
7269 * This function adds the calling process to a driver global queue. When an
7270 * event occurs, SIGIO will be sent to all processes in this queue.
7271 */
7272 static int megasas_mgmt_fasync(int fd, struct file *filep, int mode)
7273 {
7274 int rc;
7275
7276 mutex_lock(&megasas_async_queue_mutex);
7277
7278 rc = fasync_helper(fd, filep, mode, &megasas_async_queue);
7279
7280 mutex_unlock(&megasas_async_queue_mutex);
7281
7282 if (rc >= 0) {
7283 /* For sanity check when we get ioctl */
7284 filep->private_data = filep;
7285 return 0;
7286 }
7287
7288 printk(KERN_DEBUG "megasas: fasync_helper failed [%d]\n", rc);
7289
7290 return rc;
7291 }
7292
7293 /**
7294 * megasas_mgmt_poll - char node "poll" entry point
7295 * */
7296 static __poll_t megasas_mgmt_poll(struct file *file, poll_table *wait)
7297 {
7298 __poll_t mask;
7299 unsigned long flags;
7300
7301 poll_wait(file, &megasas_poll_wait, wait);
7302 spin_lock_irqsave(&poll_aen_lock, flags);
7303 if (megasas_poll_wait_aen)
7304 mask = (EPOLLIN | EPOLLRDNORM);
7305 else
7306 mask = 0;
7307 megasas_poll_wait_aen = 0;
7308 spin_unlock_irqrestore(&poll_aen_lock, flags);
7309 return mask;
7310 }
7311
7312 /*
7313 * megasas_set_crash_dump_params_ioctl:
7314 * Send CRASH_DUMP_MODE DCMD to all controllers
7315 * @cmd: MFI command frame
7316 */
7317
7318 static int megasas_set_crash_dump_params_ioctl(struct megasas_cmd *cmd)
7319 {
7320 struct megasas_instance *local_instance;
7321 int i, error = 0;
7322 int crash_support;
7323
7324 crash_support = cmd->frame->dcmd.mbox.w[0];
7325
7326 for (i = 0; i < megasas_mgmt_info.max_index; i++) {
7327 local_instance = megasas_mgmt_info.instance[i];
7328 if (local_instance && local_instance->crash_dump_drv_support) {
7329 if ((atomic_read(&local_instance->adprecovery) ==
7330 MEGASAS_HBA_OPERATIONAL) &&
7331 !megasas_set_crash_dump_params(local_instance,
7332 crash_support)) {
7333 local_instance->crash_dump_app_support =
7334 crash_support;
7335 dev_info(&local_instance->pdev->dev,
7336 "Application firmware crash "
7337 "dump mode set success\n");
7338 error = 0;
7339 } else {
7340 dev_info(&local_instance->pdev->dev,
7341 "Application firmware crash "
7342 "dump mode set failed\n");
7343 error = -1;
7344 }
7345 }
7346 }
7347 return error;
7348 }
7349
7350 /**
7351 * megasas_mgmt_fw_ioctl - Issues management ioctls to FW
7352 * @instance: Adapter soft state
7353 * @argp: User's ioctl packet
7354 */
7355 static int
7356 megasas_mgmt_fw_ioctl(struct megasas_instance *instance,
7357 struct megasas_iocpacket __user * user_ioc,
7358 struct megasas_iocpacket *ioc)
7359 {
7360 struct megasas_sge64 *kern_sge64 = NULL;
7361 struct megasas_sge32 *kern_sge32 = NULL;
7362 struct megasas_cmd *cmd;
7363 void *kbuff_arr[MAX_IOCTL_SGE];
7364 dma_addr_t buf_handle = 0;
7365 int error = 0, i;
7366 void *sense = NULL;
7367 dma_addr_t sense_handle;
7368 unsigned long *sense_ptr;
7369 u32 opcode = 0;
7370
7371 memset(kbuff_arr, 0, sizeof(kbuff_arr));
7372
7373 if (ioc->sge_count > MAX_IOCTL_SGE) {
7374 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SGE count [%d] > max limit [%d]\n",
7375 ioc->sge_count, MAX_IOCTL_SGE);
7376 return -EINVAL;
7377 }
7378
7379 if ((ioc->frame.hdr.cmd >= MFI_CMD_OP_COUNT) ||
7380 ((ioc->frame.hdr.cmd == MFI_CMD_NVME) &&
7381 !instance->support_nvme_passthru)) {
7382 dev_err(&instance->pdev->dev,
7383 "Received invalid ioctl command 0x%x\n",
7384 ioc->frame.hdr.cmd);
7385 return -ENOTSUPP;
7386 }
7387
7388 cmd = megasas_get_cmd(instance);
7389 if (!cmd) {
7390 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to get a cmd packet\n");
7391 return -ENOMEM;
7392 }
7393
7394 /*
7395 * User's IOCTL packet has 2 frames (maximum). Copy those two
7396 * frames into our cmd's frames. cmd->frame's context will get
7397 * overwritten when we copy from user's frames. So set that value
7398 * alone separately
7399 */
7400 memcpy(cmd->frame, ioc->frame.raw, 2 * MEGAMFI_FRAME_SIZE);
7401 cmd->frame->hdr.context = cpu_to_le32(cmd->index);
7402 cmd->frame->hdr.pad_0 = 0;
7403
7404 cmd->frame->hdr.flags &= (~MFI_FRAME_IEEE);
7405
7406 if (instance->consistent_mask_64bit)
7407 cmd->frame->hdr.flags |= cpu_to_le16((MFI_FRAME_SGL64 |
7408 MFI_FRAME_SENSE64));
7409 else
7410 cmd->frame->hdr.flags &= cpu_to_le16(~(MFI_FRAME_SGL64 |
7411 MFI_FRAME_SENSE64));
7412
7413 if (cmd->frame->hdr.cmd == MFI_CMD_DCMD)
7414 opcode = le32_to_cpu(cmd->frame->dcmd.opcode);
7415
7416 if (opcode == MR_DCMD_CTRL_SHUTDOWN) {
7417 if (megasas_get_ctrl_info(instance) != DCMD_SUCCESS) {
7418 megasas_return_cmd(instance, cmd);
7419 return -1;
7420 }
7421 }
7422
7423 if (opcode == MR_DRIVER_SET_APP_CRASHDUMP_MODE) {
7424 error = megasas_set_crash_dump_params_ioctl(cmd);
7425 megasas_return_cmd(instance, cmd);
7426 return error;
7427 }
7428
7429 /*
7430 * The management interface between applications and the fw uses
7431 * MFI frames. E.g, RAID configuration changes, LD property changes
7432 * etc are accomplishes through different kinds of MFI frames. The
7433 * driver needs to care only about substituting user buffers with
7434 * kernel buffers in SGLs. The location of SGL is embedded in the
7435 * struct iocpacket itself.
7436 */
7437 if (instance->consistent_mask_64bit)
7438 kern_sge64 = (struct megasas_sge64 *)
7439 ((unsigned long)cmd->frame + ioc->sgl_off);
7440 else
7441 kern_sge32 = (struct megasas_sge32 *)
7442 ((unsigned long)cmd->frame + ioc->sgl_off);
7443
7444 /*
7445 * For each user buffer, create a mirror buffer and copy in
7446 */
7447 for (i = 0; i < ioc->sge_count; i++) {
7448 if (!ioc->sgl[i].iov_len)
7449 continue;
7450
7451 kbuff_arr[i] = dma_alloc_coherent(&instance->pdev->dev,
7452 ioc->sgl[i].iov_len,
7453 &buf_handle, GFP_KERNEL);
7454 if (!kbuff_arr[i]) {
7455 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to alloc "
7456 "kernel SGL buffer for IOCTL\n");
7457 error = -ENOMEM;
7458 goto out;
7459 }
7460
7461 /*
7462 * We don't change the dma_coherent_mask, so
7463 * dma_alloc_coherent only returns 32bit addresses
7464 */
7465 if (instance->consistent_mask_64bit) {
7466 kern_sge64[i].phys_addr = cpu_to_le64(buf_handle);
7467 kern_sge64[i].length = cpu_to_le32(ioc->sgl[i].iov_len);
7468 } else {
7469 kern_sge32[i].phys_addr = cpu_to_le32(buf_handle);
7470 kern_sge32[i].length = cpu_to_le32(ioc->sgl[i].iov_len);
7471 }
7472
7473 /*
7474 * We created a kernel buffer corresponding to the
7475 * user buffer. Now copy in from the user buffer
7476 */
7477 if (copy_from_user(kbuff_arr[i], ioc->sgl[i].iov_base,
7478 (u32) (ioc->sgl[i].iov_len))) {
7479 error = -EFAULT;
7480 goto out;
7481 }
7482 }
7483
7484 if (ioc->sense_len) {
7485 sense = dma_alloc_coherent(&instance->pdev->dev, ioc->sense_len,
7486 &sense_handle, GFP_KERNEL);
7487 if (!sense) {
7488 error = -ENOMEM;
7489 goto out;
7490 }
7491
7492 sense_ptr =
7493 (unsigned long *) ((unsigned long)cmd->frame + ioc->sense_off);
7494 if (instance->consistent_mask_64bit)
7495 *sense_ptr = cpu_to_le64(sense_handle);
7496 else
7497 *sense_ptr = cpu_to_le32(sense_handle);
7498 }
7499
7500 /*
7501 * Set the sync_cmd flag so that the ISR knows not to complete this
7502 * cmd to the SCSI mid-layer
7503 */
7504 cmd->sync_cmd = 1;
7505 if (megasas_issue_blocked_cmd(instance, cmd, 0) == DCMD_NOT_FIRED) {
7506 cmd->sync_cmd = 0;
7507 dev_err(&instance->pdev->dev,
7508 "return -EBUSY from %s %d cmd 0x%x opcode 0x%x cmd->cmd_status_drv 0x%x\n",
7509 __func__, __LINE__, cmd->frame->hdr.cmd, opcode,
7510 cmd->cmd_status_drv);
7511 return -EBUSY;
7512 }
7513
7514 cmd->sync_cmd = 0;
7515
7516 if (instance->unload == 1) {
7517 dev_info(&instance->pdev->dev, "Driver unload is in progress "
7518 "don't submit data to application\n");
7519 goto out;
7520 }
7521 /*
7522 * copy out the kernel buffers to user buffers
7523 */
7524 for (i = 0; i < ioc->sge_count; i++) {
7525 if (copy_to_user(ioc->sgl[i].iov_base, kbuff_arr[i],
7526 ioc->sgl[i].iov_len)) {
7527 error = -EFAULT;
7528 goto out;
7529 }
7530 }
7531
7532 /*
7533 * copy out the sense
7534 */
7535 if (ioc->sense_len) {
7536 /*
7537 * sense_ptr points to the location that has the user
7538 * sense buffer address
7539 */
7540 sense_ptr = (unsigned long *) ((unsigned long)ioc->frame.raw +
7541 ioc->sense_off);
7542
7543 if (copy_to_user((void __user *)((unsigned long)
7544 get_unaligned((unsigned long *)sense_ptr)),
7545 sense, ioc->sense_len)) {
7546 dev_err(&instance->pdev->dev, "Failed to copy out to user "
7547 "sense data\n");
7548 error = -EFAULT;
7549 goto out;
7550 }
7551 }
7552
7553 /*
7554 * copy the status codes returned by the fw
7555 */
7556 if (copy_to_user(&user_ioc->frame.hdr.cmd_status,
7557 &cmd->frame->hdr.cmd_status, sizeof(u8))) {
7558 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Error copying out cmd_status\n");
7559 error = -EFAULT;
7560 }
7561
7562 out:
7563 if (sense) {
7564 dma_free_coherent(&instance->pdev->dev, ioc->sense_len,
7565 sense, sense_handle);
7566 }
7567
7568 for (i = 0; i < ioc->sge_count; i++) {
7569 if (kbuff_arr[i]) {
7570 if (instance->consistent_mask_64bit)
7571 dma_free_coherent(&instance->pdev->dev,
7572 le32_to_cpu(kern_sge64[i].length),
7573 kbuff_arr[i],
7574 le64_to_cpu(kern_sge64[i].phys_addr));
7575 else
7576 dma_free_coherent(&instance->pdev->dev,
7577 le32_to_cpu(kern_sge32[i].length),
7578 kbuff_arr[i],
7579 le32_to_cpu(kern_sge32[i].phys_addr));
7580 kbuff_arr[i] = NULL;
7581 }
7582 }
7583
7584 megasas_return_cmd(instance, cmd);
7585 return error;
7586 }
7587
7588 static int megasas_mgmt_ioctl_fw(struct file *file, unsigned long arg)
7589 {
7590 struct megasas_iocpacket __user *user_ioc =
7591 (struct megasas_iocpacket __user *)arg;
7592 struct megasas_iocpacket *ioc;
7593 struct megasas_instance *instance;
7594 int error;
7595
7596 ioc = memdup_user(user_ioc, sizeof(*ioc));
7597 if (IS_ERR(ioc))
7598 return PTR_ERR(ioc);
7599
7600 instance = megasas_lookup_instance(ioc->host_no);
7601 if (!instance) {
7602 error = -ENODEV;
7603 goto out_kfree_ioc;
7604 }
7605
7606 /* Block ioctls in VF mode */
7607 if (instance->requestorId && !allow_vf_ioctls) {
7608 error = -ENODEV;
7609 goto out_kfree_ioc;
7610 }
7611
7612 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
7613 dev_err(&instance->pdev->dev, "Controller in crit error\n");
7614 error = -ENODEV;
7615 goto out_kfree_ioc;
7616 }
7617
7618 if (instance->unload == 1) {
7619 error = -ENODEV;
7620 goto out_kfree_ioc;
7621 }
7622
7623 if (down_interruptible(&instance->ioctl_sem)) {
7624 error = -ERESTARTSYS;
7625 goto out_kfree_ioc;
7626 }
7627
7628 if (megasas_wait_for_adapter_operational(instance)) {
7629 error = -ENODEV;
7630 goto out_up;
7631 }
7632
7633 error = megasas_mgmt_fw_ioctl(instance, user_ioc, ioc);
7634 out_up:
7635 up(&instance->ioctl_sem);
7636
7637 out_kfree_ioc:
7638 kfree(ioc);
7639 return error;
7640 }
7641
7642 static int megasas_mgmt_ioctl_aen(struct file *file, unsigned long arg)
7643 {
7644 struct megasas_instance *instance;
7645 struct megasas_aen aen;
7646 int error;
7647
7648 if (file->private_data != file) {
7649 printk(KERN_DEBUG "megasas: fasync_helper was not "
7650 "called first\n");
7651 return -EINVAL;
7652 }
7653
7654 if (copy_from_user(&aen, (void __user *)arg, sizeof(aen)))
7655 return -EFAULT;
7656
7657 instance = megasas_lookup_instance(aen.host_no);
7658
7659 if (!instance)
7660 return -ENODEV;
7661
7662 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
7663 return -ENODEV;
7664 }
7665
7666 if (instance->unload == 1) {
7667 return -ENODEV;
7668 }
7669
7670 if (megasas_wait_for_adapter_operational(instance))
7671 return -ENODEV;
7672
7673 mutex_lock(&instance->reset_mutex);
7674 error = megasas_register_aen(instance, aen.seq_num,
7675 aen.class_locale_word);
7676 mutex_unlock(&instance->reset_mutex);
7677 return error;
7678 }
7679
7680 /**
7681 * megasas_mgmt_ioctl - char node ioctl entry point
7682 */
7683 static long
7684 megasas_mgmt_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
7685 {
7686 switch (cmd) {
7687 case MEGASAS_IOC_FIRMWARE:
7688 return megasas_mgmt_ioctl_fw(file, arg);
7689
7690 case MEGASAS_IOC_GET_AEN:
7691 return megasas_mgmt_ioctl_aen(file, arg);
7692 }
7693
7694 return -ENOTTY;
7695 }
7696
7697 #ifdef CONFIG_COMPAT
7698 static int megasas_mgmt_compat_ioctl_fw(struct file *file, unsigned long arg)
7699 {
7700 struct compat_megasas_iocpacket __user *cioc =
7701 (struct compat_megasas_iocpacket __user *)arg;
7702 struct megasas_iocpacket __user *ioc =
7703 compat_alloc_user_space(sizeof(struct megasas_iocpacket));
7704 int i;
7705 int error = 0;
7706 compat_uptr_t ptr;
7707 u32 local_sense_off;
7708 u32 local_sense_len;
7709 u32 user_sense_off;
7710
7711 if (clear_user(ioc, sizeof(*ioc)))
7712 return -EFAULT;
7713
7714 if (copy_in_user(&ioc->host_no, &cioc->host_no, sizeof(u16)) ||
7715 copy_in_user(&ioc->sgl_off, &cioc->sgl_off, sizeof(u32)) ||
7716 copy_in_user(&ioc->sense_off, &cioc->sense_off, sizeof(u32)) ||
7717 copy_in_user(&ioc->sense_len, &cioc->sense_len, sizeof(u32)) ||
7718 copy_in_user(ioc->frame.raw, cioc->frame.raw, 128) ||
7719 copy_in_user(&ioc->sge_count, &cioc->sge_count, sizeof(u32)))
7720 return -EFAULT;
7721
7722 /*
7723 * The sense_ptr is used in megasas_mgmt_fw_ioctl only when
7724 * sense_len is not null, so prepare the 64bit value under
7725 * the same condition.
7726 */
7727 if (get_user(local_sense_off, &ioc->sense_off) ||
7728 get_user(local_sense_len, &ioc->sense_len) ||
7729 get_user(user_sense_off, &cioc->sense_off))
7730 return -EFAULT;
7731
7732 if (local_sense_off != user_sense_off)
7733 return -EINVAL;
7734
7735 if (local_sense_len) {
7736 void __user **sense_ioc_ptr =
7737 (void __user **)((u8 *)((unsigned long)&ioc->frame.raw) + local_sense_off);
7738 compat_uptr_t *sense_cioc_ptr =
7739 (compat_uptr_t *)(((unsigned long)&cioc->frame.raw) + user_sense_off);
7740 if (get_user(ptr, sense_cioc_ptr) ||
7741 put_user(compat_ptr(ptr), sense_ioc_ptr))
7742 return -EFAULT;
7743 }
7744
7745 for (i = 0; i < MAX_IOCTL_SGE; i++) {
7746 if (get_user(ptr, &cioc->sgl[i].iov_base) ||
7747 put_user(compat_ptr(ptr), &ioc->sgl[i].iov_base) ||
7748 copy_in_user(&ioc->sgl[i].iov_len,
7749 &cioc->sgl[i].iov_len, sizeof(compat_size_t)))
7750 return -EFAULT;
7751 }
7752
7753 error = megasas_mgmt_ioctl_fw(file, (unsigned long)ioc);
7754
7755 if (copy_in_user(&cioc->frame.hdr.cmd_status,
7756 &ioc->frame.hdr.cmd_status, sizeof(u8))) {
7757 printk(KERN_DEBUG "megasas: error copy_in_user cmd_status\n");
7758 return -EFAULT;
7759 }
7760 return error;
7761 }
7762
7763 static long
7764 megasas_mgmt_compat_ioctl(struct file *file, unsigned int cmd,
7765 unsigned long arg)
7766 {
7767 switch (cmd) {
7768 case MEGASAS_IOC_FIRMWARE32:
7769 return megasas_mgmt_compat_ioctl_fw(file, arg);
7770 case MEGASAS_IOC_GET_AEN:
7771 return megasas_mgmt_ioctl_aen(file, arg);
7772 }
7773
7774 return -ENOTTY;
7775 }
7776 #endif
7777
7778 /*
7779 * File operations structure for management interface
7780 */
7781 static const struct file_operations megasas_mgmt_fops = {
7782 .owner = THIS_MODULE,
7783 .open = megasas_mgmt_open,
7784 .fasync = megasas_mgmt_fasync,
7785 .unlocked_ioctl = megasas_mgmt_ioctl,
7786 .poll = megasas_mgmt_poll,
7787 #ifdef CONFIG_COMPAT
7788 .compat_ioctl = megasas_mgmt_compat_ioctl,
7789 #endif
7790 .llseek = noop_llseek,
7791 };
7792
7793 /*
7794 * PCI hotplug support registration structure
7795 */
7796 static struct pci_driver megasas_pci_driver = {
7797
7798 .name = "megaraid_sas",
7799 .id_table = megasas_pci_table,
7800 .probe = megasas_probe_one,
7801 .remove = megasas_detach_one,
7802 .suspend = megasas_suspend,
7803 .resume = megasas_resume,
7804 .shutdown = megasas_shutdown,
7805 };
7806
7807 /*
7808 * Sysfs driver attributes
7809 */
7810 static ssize_t version_show(struct device_driver *dd, char *buf)
7811 {
7812 return snprintf(buf, strlen(MEGASAS_VERSION) + 2, "%s\n",
7813 MEGASAS_VERSION);
7814 }
7815 static DRIVER_ATTR_RO(version);
7816
7817 static ssize_t release_date_show(struct device_driver *dd, char *buf)
7818 {
7819 return snprintf(buf, strlen(MEGASAS_RELDATE) + 2, "%s\n",
7820 MEGASAS_RELDATE);
7821 }
7822 static DRIVER_ATTR_RO(release_date);
7823
7824 static ssize_t support_poll_for_event_show(struct device_driver *dd, char *buf)
7825 {
7826 return sprintf(buf, "%u\n", support_poll_for_event);
7827 }
7828 static DRIVER_ATTR_RO(support_poll_for_event);
7829
7830 static ssize_t support_device_change_show(struct device_driver *dd, char *buf)
7831 {
7832 return sprintf(buf, "%u\n", support_device_change);
7833 }
7834 static DRIVER_ATTR_RO(support_device_change);
7835
7836 static ssize_t dbg_lvl_show(struct device_driver *dd, char *buf)
7837 {
7838 return sprintf(buf, "%u\n", megasas_dbg_lvl);
7839 }
7840
7841 static ssize_t dbg_lvl_store(struct device_driver *dd, const char *buf,
7842 size_t count)
7843 {
7844 int retval = count;
7845
7846 if (sscanf(buf, "%u", &megasas_dbg_lvl) < 1) {
7847 printk(KERN_ERR "megasas: could not set dbg_lvl\n");
7848 retval = -EINVAL;
7849 }
7850 return retval;
7851 }
7852 static DRIVER_ATTR_RW(dbg_lvl);
7853
7854 static ssize_t
7855 support_nvme_encapsulation_show(struct device_driver *dd, char *buf)
7856 {
7857 return sprintf(buf, "%u\n", support_nvme_encapsulation);
7858 }
7859
7860 static DRIVER_ATTR_RO(support_nvme_encapsulation);
7861
7862 static inline void megasas_remove_scsi_device(struct scsi_device *sdev)
7863 {
7864 sdev_printk(KERN_INFO, sdev, "SCSI device is removed\n");
7865 scsi_remove_device(sdev);
7866 scsi_device_put(sdev);
7867 }
7868
7869 static void
7870 megasas_aen_polling(struct work_struct *work)
7871 {
7872 struct megasas_aen_event *ev =
7873 container_of(work, struct megasas_aen_event, hotplug_work.work);
7874 struct megasas_instance *instance = ev->instance;
7875 union megasas_evt_class_locale class_locale;
7876 struct Scsi_Host *host;
7877 struct scsi_device *sdev1;
7878 u16 pd_index = 0;
7879 u16 ld_index = 0;
7880 int i, j, doscan = 0;
7881 u32 seq_num, wait_time = MEGASAS_RESET_WAIT_TIME;
7882 int error;
7883 u8 dcmd_ret = DCMD_SUCCESS;
7884
7885 if (!instance) {
7886 printk(KERN_ERR "invalid instance!\n");
7887 kfree(ev);
7888 return;
7889 }
7890
7891 /* Adjust event workqueue thread wait time for VF mode */
7892 if (instance->requestorId)
7893 wait_time = MEGASAS_ROUTINE_WAIT_TIME_VF;
7894
7895 /* Don't run the event workqueue thread if OCR is running */
7896 mutex_lock(&instance->reset_mutex);
7897
7898 instance->ev = NULL;
7899 host = instance->host;
7900 if (instance->evt_detail) {
7901 megasas_decode_evt(instance);
7902
7903 switch (le32_to_cpu(instance->evt_detail->code)) {
7904
7905 case MR_EVT_PD_INSERTED:
7906 case MR_EVT_PD_REMOVED:
7907 dcmd_ret = megasas_get_pd_list(instance);
7908 if (dcmd_ret == DCMD_SUCCESS)
7909 doscan = SCAN_PD_CHANNEL;
7910 break;
7911
7912 case MR_EVT_LD_OFFLINE:
7913 case MR_EVT_CFG_CLEARED:
7914 case MR_EVT_LD_DELETED:
7915 case MR_EVT_LD_CREATED:
7916 if (!instance->requestorId ||
7917 (instance->requestorId && megasas_get_ld_vf_affiliation(instance, 0)))
7918 dcmd_ret = megasas_ld_list_query(instance, MR_LD_QUERY_TYPE_EXPOSED_TO_HOST);
7919
7920 if (dcmd_ret == DCMD_SUCCESS)
7921 doscan = SCAN_VD_CHANNEL;
7922
7923 break;
7924
7925 case MR_EVT_CTRL_HOST_BUS_SCAN_REQUESTED:
7926 case MR_EVT_FOREIGN_CFG_IMPORTED:
7927 case MR_EVT_LD_STATE_CHANGE:
7928 dcmd_ret = megasas_get_pd_list(instance);
7929
7930 if (dcmd_ret != DCMD_SUCCESS)
7931 break;
7932
7933 if (!instance->requestorId ||
7934 (instance->requestorId && megasas_get_ld_vf_affiliation(instance, 0)))
7935 dcmd_ret = megasas_ld_list_query(instance, MR_LD_QUERY_TYPE_EXPOSED_TO_HOST);
7936
7937 if (dcmd_ret != DCMD_SUCCESS)
7938 break;
7939
7940 doscan = SCAN_VD_CHANNEL | SCAN_PD_CHANNEL;
7941 dev_info(&instance->pdev->dev, "scanning for scsi%d...\n",
7942 instance->host->host_no);
7943 break;
7944
7945 case MR_EVT_CTRL_PROP_CHANGED:
7946 dcmd_ret = megasas_get_ctrl_info(instance);
7947 if (dcmd_ret == DCMD_SUCCESS &&
7948 instance->snapdump_wait_time) {
7949 megasas_get_snapdump_properties(instance);
7950 dev_info(&instance->pdev->dev,
7951 "Snap dump wait time\t: %d\n",
7952 instance->snapdump_wait_time);
7953 }
7954 break;
7955 default:
7956 doscan = 0;
7957 break;
7958 }
7959 } else {
7960 dev_err(&instance->pdev->dev, "invalid evt_detail!\n");
7961 mutex_unlock(&instance->reset_mutex);
7962 kfree(ev);
7963 return;
7964 }
7965
7966 mutex_unlock(&instance->reset_mutex);
7967
7968 if (doscan & SCAN_PD_CHANNEL) {
7969 for (i = 0; i < MEGASAS_MAX_PD_CHANNELS; i++) {
7970 for (j = 0; j < MEGASAS_MAX_DEV_PER_CHANNEL; j++) {
7971 pd_index = i*MEGASAS_MAX_DEV_PER_CHANNEL + j;
7972 sdev1 = scsi_device_lookup(host, i, j, 0);
7973 if (instance->pd_list[pd_index].driveState ==
7974 MR_PD_STATE_SYSTEM) {
7975 if (!sdev1)
7976 scsi_add_device(host, i, j, 0);
7977 else
7978 scsi_device_put(sdev1);
7979 } else {
7980 if (sdev1)
7981 megasas_remove_scsi_device(sdev1);
7982 }
7983 }
7984 }
7985 }
7986
7987 if (doscan & SCAN_VD_CHANNEL) {
7988 for (i = 0; i < MEGASAS_MAX_LD_CHANNELS; i++) {
7989 for (j = 0; j < MEGASAS_MAX_DEV_PER_CHANNEL; j++) {
7990 ld_index = (i * MEGASAS_MAX_DEV_PER_CHANNEL) + j;
7991 sdev1 = scsi_device_lookup(host, MEGASAS_MAX_PD_CHANNELS + i, j, 0);
7992 if (instance->ld_ids[ld_index] != 0xff) {
7993 if (!sdev1)
7994 scsi_add_device(host, MEGASAS_MAX_PD_CHANNELS + i, j, 0);
7995 else
7996 scsi_device_put(sdev1);
7997 } else {
7998 if (sdev1)
7999 megasas_remove_scsi_device(sdev1);
8000 }
8001 }
8002 }
8003 }
8004
8005 if (dcmd_ret == DCMD_SUCCESS)
8006 seq_num = le32_to_cpu(instance->evt_detail->seq_num) + 1;
8007 else
8008 seq_num = instance->last_seq_num;
8009
8010 /* Register AEN with FW for latest sequence number plus 1 */
8011 class_locale.members.reserved = 0;
8012 class_locale.members.locale = MR_EVT_LOCALE_ALL;
8013 class_locale.members.class = MR_EVT_CLASS_DEBUG;
8014
8015 if (instance->aen_cmd != NULL) {
8016 kfree(ev);
8017 return;
8018 }
8019
8020 mutex_lock(&instance->reset_mutex);
8021 error = megasas_register_aen(instance, seq_num,
8022 class_locale.word);
8023 if (error)
8024 dev_err(&instance->pdev->dev,
8025 "register aen failed error %x\n", error);
8026
8027 mutex_unlock(&instance->reset_mutex);
8028 kfree(ev);
8029 }
8030
8031 /**
8032 * megasas_init - Driver load entry point
8033 */
8034 static int __init megasas_init(void)
8035 {
8036 int rval;
8037
8038 /*
8039 * Booted in kdump kernel, minimize memory footprints by
8040 * disabling few features
8041 */
8042 if (reset_devices) {
8043 msix_vectors = 1;
8044 rdpq_enable = 0;
8045 dual_qdepth_disable = 1;
8046 }
8047
8048 /*
8049 * Announce driver version and other information
8050 */
8051 pr_info("megasas: %s\n", MEGASAS_VERSION);
8052
8053 spin_lock_init(&poll_aen_lock);
8054
8055 support_poll_for_event = 2;
8056 support_device_change = 1;
8057 support_nvme_encapsulation = true;
8058
8059 memset(&megasas_mgmt_info, 0, sizeof(megasas_mgmt_info));
8060
8061 /*
8062 * Register character device node
8063 */
8064 rval = register_chrdev(0, "megaraid_sas_ioctl", &megasas_mgmt_fops);
8065
8066 if (rval < 0) {
8067 printk(KERN_DEBUG "megasas: failed to open device node\n");
8068 return rval;
8069 }
8070
8071 megasas_mgmt_majorno = rval;
8072
8073 /*
8074 * Register ourselves as PCI hotplug module
8075 */
8076 rval = pci_register_driver(&megasas_pci_driver);
8077
8078 if (rval) {
8079 printk(KERN_DEBUG "megasas: PCI hotplug registration failed \n");
8080 goto err_pcidrv;
8081 }
8082
8083 rval = driver_create_file(&megasas_pci_driver.driver,
8084 &driver_attr_version);
8085 if (rval)
8086 goto err_dcf_attr_ver;
8087
8088 rval = driver_create_file(&megasas_pci_driver.driver,
8089 &driver_attr_release_date);
8090 if (rval)
8091 goto err_dcf_rel_date;
8092
8093 rval = driver_create_file(&megasas_pci_driver.driver,
8094 &driver_attr_support_poll_for_event);
8095 if (rval)
8096 goto err_dcf_support_poll_for_event;
8097
8098 rval = driver_create_file(&megasas_pci_driver.driver,
8099 &driver_attr_dbg_lvl);
8100 if (rval)
8101 goto err_dcf_dbg_lvl;
8102 rval = driver_create_file(&megasas_pci_driver.driver,
8103 &driver_attr_support_device_change);
8104 if (rval)
8105 goto err_dcf_support_device_change;
8106
8107 rval = driver_create_file(&megasas_pci_driver.driver,
8108 &driver_attr_support_nvme_encapsulation);
8109 if (rval)
8110 goto err_dcf_support_nvme_encapsulation;
8111
8112 return rval;
8113
8114 err_dcf_support_nvme_encapsulation:
8115 driver_remove_file(&megasas_pci_driver.driver,
8116 &driver_attr_support_device_change);
8117
8118 err_dcf_support_device_change:
8119 driver_remove_file(&megasas_pci_driver.driver,
8120 &driver_attr_dbg_lvl);
8121 err_dcf_dbg_lvl:
8122 driver_remove_file(&megasas_pci_driver.driver,
8123 &driver_attr_support_poll_for_event);
8124 err_dcf_support_poll_for_event:
8125 driver_remove_file(&megasas_pci_driver.driver,
8126 &driver_attr_release_date);
8127 err_dcf_rel_date:
8128 driver_remove_file(&megasas_pci_driver.driver, &driver_attr_version);
8129 err_dcf_attr_ver:
8130 pci_unregister_driver(&megasas_pci_driver);
8131 err_pcidrv:
8132 unregister_chrdev(megasas_mgmt_majorno, "megaraid_sas_ioctl");
8133 return rval;
8134 }
8135
8136 /**
8137 * megasas_exit - Driver unload entry point
8138 */
8139 static void __exit megasas_exit(void)
8140 {
8141 driver_remove_file(&megasas_pci_driver.driver,
8142 &driver_attr_dbg_lvl);
8143 driver_remove_file(&megasas_pci_driver.driver,
8144 &driver_attr_support_poll_for_event);
8145 driver_remove_file(&megasas_pci_driver.driver,
8146 &driver_attr_support_device_change);
8147 driver_remove_file(&megasas_pci_driver.driver,
8148 &driver_attr_release_date);
8149 driver_remove_file(&megasas_pci_driver.driver, &driver_attr_version);
8150 driver_remove_file(&megasas_pci_driver.driver,
8151 &driver_attr_support_nvme_encapsulation);
8152
8153 pci_unregister_driver(&megasas_pci_driver);
8154 unregister_chrdev(megasas_mgmt_majorno, "megaraid_sas_ioctl");
8155 }
8156
8157 module_init(megasas_init);
8158 module_exit(megasas_exit);
Linux with added FPC-III support