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xtensa: support DMA buffers in high memory
[cris-mirror.git] / drivers / scsi / megaraid / megaraid_sas_base.c
bloba71ee67df0847721a98b2a2504a6a41f7e68bd44
1 /*
2 * Linux MegaRAID driver for SAS based RAID controllers
3 *
4 * Copyright (c) 2003-2013 LSI Corporation
5 * Copyright (c) 2013-2014 Avago Technologies
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version 2
10 * of the License, or (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
19 *
20 * Authors: Avago Technologies
21 * Sreenivas Bagalkote
22 * Sumant Patro
23 * Bo Yang
24 * Adam Radford
25 * Kashyap Desai <kashyap.desai@avagotech.com>
26 * Sumit Saxena <sumit.saxena@avagotech.com>
27 *
28 * Send feedback to: megaraidlinux.pdl@avagotech.com
29 *
30 * Mail to: Avago Technologies, 350 West Trimble Road, Building 90,
31 * San Jose, California 95131
32 */
33
34 #include <linux/kernel.h>
35 #include <linux/types.h>
36 #include <linux/pci.h>
37 #include <linux/list.h>
38 #include <linux/moduleparam.h>
39 #include <linux/module.h>
40 #include <linux/spinlock.h>
41 #include <linux/interrupt.h>
42 #include <linux/delay.h>
43 #include <linux/uio.h>
44 #include <linux/slab.h>
45 #include <linux/uaccess.h>
46 #include <asm/unaligned.h>
47 #include <linux/fs.h>
48 #include <linux/compat.h>
49 #include <linux/blkdev.h>
50 #include <linux/mutex.h>
51 #include <linux/poll.h>
52 #include <linux/vmalloc.h>
53
54 #include <scsi/scsi.h>
55 #include <scsi/scsi_cmnd.h>
56 #include <scsi/scsi_device.h>
57 #include <scsi/scsi_host.h>
58 #include <scsi/scsi_tcq.h>
59 #include "megaraid_sas_fusion.h"
60 #include "megaraid_sas.h"
61
62 /*
63 * Number of sectors per IO command
64 * Will be set in megasas_init_mfi if user does not provide
65 */
66 static unsigned int max_sectors;
67 module_param_named(max_sectors, max_sectors, int, 0);
68 MODULE_PARM_DESC(max_sectors,
69 "Maximum number of sectors per IO command");
70
71 static int msix_disable;
72 module_param(msix_disable, int, S_IRUGO);
73 MODULE_PARM_DESC(msix_disable, "Disable MSI-X interrupt handling. Default: 0");
74
75 static unsigned int msix_vectors;
76 module_param(msix_vectors, int, S_IRUGO);
77 MODULE_PARM_DESC(msix_vectors, "MSI-X max vector count. Default: Set by FW");
78
79 static int allow_vf_ioctls;
80 module_param(allow_vf_ioctls, int, S_IRUGO);
81 MODULE_PARM_DESC(allow_vf_ioctls, "Allow ioctls in SR-IOV VF mode. Default: 0");
82
83 static unsigned int throttlequeuedepth = MEGASAS_THROTTLE_QUEUE_DEPTH;
84 module_param(throttlequeuedepth, int, S_IRUGO);
85 MODULE_PARM_DESC(throttlequeuedepth,
86 "Adapter queue depth when throttled due to I/O timeout. Default: 16");
87
88 unsigned int resetwaittime = MEGASAS_RESET_WAIT_TIME;
89 module_param(resetwaittime, int, S_IRUGO);
90 MODULE_PARM_DESC(resetwaittime, "Wait time in seconds after I/O timeout "
91 "before resetting adapter. Default: 180");
92
93 int smp_affinity_enable = 1;
94 module_param(smp_affinity_enable, int, S_IRUGO);
95 MODULE_PARM_DESC(smp_affinity_enable, "SMP affinity feature enable/disbale Default: enable(1)");
96
97 int rdpq_enable = 1;
98 module_param(rdpq_enable, int, S_IRUGO);
99 MODULE_PARM_DESC(rdpq_enable, " Allocate reply queue in chunks for large queue depth enable/disable Default: disable(0)");
100
101 unsigned int dual_qdepth_disable;
102 module_param(dual_qdepth_disable, int, S_IRUGO);
103 MODULE_PARM_DESC(dual_qdepth_disable, "Disable dual queue depth feature. Default: 0");
104
105 unsigned int scmd_timeout = MEGASAS_DEFAULT_CMD_TIMEOUT;
106 module_param(scmd_timeout, int, S_IRUGO);
107 MODULE_PARM_DESC(scmd_timeout, "scsi command timeout (10-90s), default 90s. See megasas_reset_timer.");
108
109 MODULE_LICENSE("GPL");
110 MODULE_VERSION(MEGASAS_VERSION);
111 MODULE_AUTHOR("megaraidlinux.pdl@avagotech.com");
112 MODULE_DESCRIPTION("Avago MegaRAID SAS Driver");
113
114 int megasas_transition_to_ready(struct megasas_instance *instance, int ocr);
115 static int megasas_get_pd_list(struct megasas_instance *instance);
116 static int megasas_ld_list_query(struct megasas_instance *instance,
117 u8 query_type);
118 static int megasas_issue_init_mfi(struct megasas_instance *instance);
119 static int megasas_register_aen(struct megasas_instance *instance,
120 u32 seq_num, u32 class_locale_word);
121 static void megasas_get_pd_info(struct megasas_instance *instance,
122 struct scsi_device *sdev);
123 static int megasas_get_target_prop(struct megasas_instance *instance,
124 struct scsi_device *sdev);
125 /*
126 * PCI ID table for all supported controllers
127 */
128 static struct pci_device_id megasas_pci_table[] = {
129
130 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1064R)},
131 /* xscale IOP */
132 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078R)},
133 /* ppc IOP */
134 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078DE)},
135 /* ppc IOP */
136 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078GEN2)},
137 /* gen2*/
138 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0079GEN2)},
139 /* gen2*/
140 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0073SKINNY)},
141 /* skinny*/
142 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0071SKINNY)},
143 /* skinny*/
144 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_VERDE_ZCR)},
145 /* xscale IOP, vega */
146 {PCI_DEVICE(PCI_VENDOR_ID_DELL, PCI_DEVICE_ID_DELL_PERC5)},
147 /* xscale IOP */
148 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FUSION)},
149 /* Fusion */
150 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_PLASMA)},
151 /* Plasma */
152 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_INVADER)},
153 /* Invader */
154 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FURY)},
155 /* Fury */
156 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_INTRUDER)},
157 /* Intruder */
158 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_INTRUDER_24)},
159 /* Intruder 24 port*/
160 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_CUTLASS_52)},
161 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_CUTLASS_53)},
162 /* VENTURA */
163 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_VENTURA)},
164 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_CRUSADER)},
165 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_HARPOON)},
166 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_TOMCAT)},
167 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_VENTURA_4PORT)},
168 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_CRUSADER_4PORT)},
169 {}
170 };
171
172 MODULE_DEVICE_TABLE(pci, megasas_pci_table);
173
174 static int megasas_mgmt_majorno;
175 struct megasas_mgmt_info megasas_mgmt_info;
176 static struct fasync_struct *megasas_async_queue;
177 static DEFINE_MUTEX(megasas_async_queue_mutex);
178
179 static int megasas_poll_wait_aen;
180 static DECLARE_WAIT_QUEUE_HEAD(megasas_poll_wait);
181 static u32 support_poll_for_event;
182 u32 megasas_dbg_lvl;
183 static u32 support_device_change;
184 static bool support_nvme_encapsulation;
185
186 /* define lock for aen poll */
187 spinlock_t poll_aen_lock;
188
189 void
190 megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd,
191 u8 alt_status);
192 static u32
193 megasas_read_fw_status_reg_gen2(struct megasas_register_set __iomem *regs);
194 static int
195 megasas_adp_reset_gen2(struct megasas_instance *instance,
196 struct megasas_register_set __iomem *reg_set);
197 static irqreturn_t megasas_isr(int irq, void *devp);
198 static u32
199 megasas_init_adapter_mfi(struct megasas_instance *instance);
200 u32
201 megasas_build_and_issue_cmd(struct megasas_instance *instance,
202 struct scsi_cmnd *scmd);
203 static void megasas_complete_cmd_dpc(unsigned long instance_addr);
204 int
205 wait_and_poll(struct megasas_instance *instance, struct megasas_cmd *cmd,
206 int seconds);
207 void megasas_fusion_ocr_wq(struct work_struct *work);
208 static int megasas_get_ld_vf_affiliation(struct megasas_instance *instance,
209 int initial);
210 static int
211 megasas_set_dma_mask(struct megasas_instance *instance);
212 static int
213 megasas_alloc_ctrl_mem(struct megasas_instance *instance);
214 static inline void
215 megasas_free_ctrl_mem(struct megasas_instance *instance);
216 static inline int
217 megasas_alloc_ctrl_dma_buffers(struct megasas_instance *instance);
218 static inline void
219 megasas_free_ctrl_dma_buffers(struct megasas_instance *instance);
220 static inline void
221 megasas_init_ctrl_params(struct megasas_instance *instance);
222
223 /**
224 * megasas_set_dma_settings - Populate DMA address, length and flags for DCMDs
225 * @instance: Adapter soft state
226 * @dcmd: DCMD frame inside MFI command
227 * @dma_addr: DMA address of buffer to be passed to FW
228 * @dma_len: Length of DMA buffer to be passed to FW
229 * @return: void
230 */
231 void megasas_set_dma_settings(struct megasas_instance *instance,
232 struct megasas_dcmd_frame *dcmd,
233 dma_addr_t dma_addr, u32 dma_len)
234 {
235 if (instance->consistent_mask_64bit) {
236 dcmd->sgl.sge64[0].phys_addr = cpu_to_le64(dma_addr);
237 dcmd->sgl.sge64[0].length = cpu_to_le32(dma_len);
238 dcmd->flags = cpu_to_le16(dcmd->flags | MFI_FRAME_SGL64);
239
240 } else {
241 dcmd->sgl.sge32[0].phys_addr =
242 cpu_to_le32(lower_32_bits(dma_addr));
243 dcmd->sgl.sge32[0].length = cpu_to_le32(dma_len);
244 dcmd->flags = cpu_to_le16(dcmd->flags);
245 }
246 }
247
248 void
249 megasas_issue_dcmd(struct megasas_instance *instance, struct megasas_cmd *cmd)
250 {
251 instance->instancet->fire_cmd(instance,
252 cmd->frame_phys_addr, 0, instance->reg_set);
253 return;
254 }
255
256 /**
257 * megasas_get_cmd - Get a command from the free pool
258 * @instance: Adapter soft state
259 *
260 * Returns a free command from the pool
261 */
262 struct megasas_cmd *megasas_get_cmd(struct megasas_instance
263 *instance)
264 {
265 unsigned long flags;
266 struct megasas_cmd *cmd = NULL;
267
268 spin_lock_irqsave(&instance->mfi_pool_lock, flags);
269
270 if (!list_empty(&instance->cmd_pool)) {
271 cmd = list_entry((&instance->cmd_pool)->next,
272 struct megasas_cmd, list);
273 list_del_init(&cmd->list);
274 } else {
275 dev_err(&instance->pdev->dev, "Command pool empty!\n");
276 }
277
278 spin_unlock_irqrestore(&instance->mfi_pool_lock, flags);
279 return cmd;
280 }
281
282 /**
283 * megasas_return_cmd - Return a cmd to free command pool
284 * @instance: Adapter soft state
285 * @cmd: Command packet to be returned to free command pool
286 */
287 void
288 megasas_return_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd)
289 {
290 unsigned long flags;
291 u32 blk_tags;
292 struct megasas_cmd_fusion *cmd_fusion;
293 struct fusion_context *fusion = instance->ctrl_context;
294
295 /* This flag is used only for fusion adapter.
296 * Wait for Interrupt for Polled mode DCMD
297 */
298 if (cmd->flags & DRV_DCMD_POLLED_MODE)
299 return;
300
301 spin_lock_irqsave(&instance->mfi_pool_lock, flags);
302
303 if (fusion) {
304 blk_tags = instance->max_scsi_cmds + cmd->index;
305 cmd_fusion = fusion->cmd_list[blk_tags];
306 megasas_return_cmd_fusion(instance, cmd_fusion);
307 }
308 cmd->scmd = NULL;
309 cmd->frame_count = 0;
310 cmd->flags = 0;
311 memset(cmd->frame, 0, instance->mfi_frame_size);
312 cmd->frame->io.context = cpu_to_le32(cmd->index);
313 if (!fusion && reset_devices)
314 cmd->frame->hdr.cmd = MFI_CMD_INVALID;
315 list_add(&cmd->list, (&instance->cmd_pool)->next);
316
317 spin_unlock_irqrestore(&instance->mfi_pool_lock, flags);
318
319 }
320
321 static const char *
322 format_timestamp(uint32_t timestamp)
323 {
324 static char buffer[32];
325
326 if ((timestamp & 0xff000000) == 0xff000000)
327 snprintf(buffer, sizeof(buffer), "boot + %us", timestamp &
328 0x00ffffff);
329 else
330 snprintf(buffer, sizeof(buffer), "%us", timestamp);
331 return buffer;
332 }
333
334 static const char *
335 format_class(int8_t class)
336 {
337 static char buffer[6];
338
339 switch (class) {
340 case MFI_EVT_CLASS_DEBUG:
341 return "debug";
342 case MFI_EVT_CLASS_PROGRESS:
343 return "progress";
344 case MFI_EVT_CLASS_INFO:
345 return "info";
346 case MFI_EVT_CLASS_WARNING:
347 return "WARN";
348 case MFI_EVT_CLASS_CRITICAL:
349 return "CRIT";
350 case MFI_EVT_CLASS_FATAL:
351 return "FATAL";
352 case MFI_EVT_CLASS_DEAD:
353 return "DEAD";
354 default:
355 snprintf(buffer, sizeof(buffer), "%d", class);
356 return buffer;
357 }
358 }
359
360 /**
361 * megasas_decode_evt: Decode FW AEN event and print critical event
362 * for information.
363 * @instance: Adapter soft state
364 */
365 static void
366 megasas_decode_evt(struct megasas_instance *instance)
367 {
368 struct megasas_evt_detail *evt_detail = instance->evt_detail;
369 union megasas_evt_class_locale class_locale;
370 class_locale.word = le32_to_cpu(evt_detail->cl.word);
371
372 if (class_locale.members.class >= MFI_EVT_CLASS_CRITICAL)
373 dev_info(&instance->pdev->dev, "%d (%s/0x%04x/%s) - %s\n",
374 le32_to_cpu(evt_detail->seq_num),
375 format_timestamp(le32_to_cpu(evt_detail->time_stamp)),
376 (class_locale.members.locale),
377 format_class(class_locale.members.class),
378 evt_detail->description);
379 }
380
381 /**
382 * The following functions are defined for xscale
383 * (deviceid : 1064R, PERC5) controllers
384 */
385
386 /**
387 * megasas_enable_intr_xscale - Enables interrupts
388 * @regs: MFI register set
389 */
390 static inline void
391 megasas_enable_intr_xscale(struct megasas_instance *instance)
392 {
393 struct megasas_register_set __iomem *regs;
394
395 regs = instance->reg_set;
396 writel(0, &(regs)->outbound_intr_mask);
397
398 /* Dummy readl to force pci flush */
399 readl(&regs->outbound_intr_mask);
400 }
401
402 /**
403 * megasas_disable_intr_xscale -Disables interrupt
404 * @regs: MFI register set
405 */
406 static inline void
407 megasas_disable_intr_xscale(struct megasas_instance *instance)
408 {
409 struct megasas_register_set __iomem *regs;
410 u32 mask = 0x1f;
411
412 regs = instance->reg_set;
413 writel(mask, &regs->outbound_intr_mask);
414 /* Dummy readl to force pci flush */
415 readl(&regs->outbound_intr_mask);
416 }
417
418 /**
419 * megasas_read_fw_status_reg_xscale - returns the current FW status value
420 * @regs: MFI register set
421 */
422 static u32
423 megasas_read_fw_status_reg_xscale(struct megasas_register_set __iomem * regs)
424 {
425 return readl(&(regs)->outbound_msg_0);
426 }
427 /**
428 * megasas_clear_interrupt_xscale - Check & clear interrupt
429 * @regs: MFI register set
430 */
431 static int
432 megasas_clear_intr_xscale(struct megasas_register_set __iomem * regs)
433 {
434 u32 status;
435 u32 mfiStatus = 0;
436
437 /*
438 * Check if it is our interrupt
439 */
440 status = readl(&regs->outbound_intr_status);
441
442 if (status & MFI_OB_INTR_STATUS_MASK)
443 mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE;
444 if (status & MFI_XSCALE_OMR0_CHANGE_INTERRUPT)
445 mfiStatus |= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE;
446
447 /*
448 * Clear the interrupt by writing back the same value
449 */
450 if (mfiStatus)
451 writel(status, &regs->outbound_intr_status);
452
453 /* Dummy readl to force pci flush */
454 readl(&regs->outbound_intr_status);
455
456 return mfiStatus;
457 }
458
459 /**
460 * megasas_fire_cmd_xscale - Sends command to the FW
461 * @frame_phys_addr : Physical address of cmd
462 * @frame_count : Number of frames for the command
463 * @regs : MFI register set
464 */
465 static inline void
466 megasas_fire_cmd_xscale(struct megasas_instance *instance,
467 dma_addr_t frame_phys_addr,
468 u32 frame_count,
469 struct megasas_register_set __iomem *regs)
470 {
471 unsigned long flags;
472
473 spin_lock_irqsave(&instance->hba_lock, flags);
474 writel((frame_phys_addr >> 3)|(frame_count),
475 &(regs)->inbound_queue_port);
476 spin_unlock_irqrestore(&instance->hba_lock, flags);
477 }
478
479 /**
480 * megasas_adp_reset_xscale - For controller reset
481 * @regs: MFI register set
482 */
483 static int
484 megasas_adp_reset_xscale(struct megasas_instance *instance,
485 struct megasas_register_set __iomem *regs)
486 {
487 u32 i;
488 u32 pcidata;
489
490 writel(MFI_ADP_RESET, &regs->inbound_doorbell);
491
492 for (i = 0; i < 3; i++)
493 msleep(1000); /* sleep for 3 secs */
494 pcidata = 0;
495 pci_read_config_dword(instance->pdev, MFI_1068_PCSR_OFFSET, &pcidata);
496 dev_notice(&instance->pdev->dev, "pcidata = %x\n", pcidata);
497 if (pcidata & 0x2) {
498 dev_notice(&instance->pdev->dev, "mfi 1068 offset read=%x\n", pcidata);
499 pcidata &= ~0x2;
500 pci_write_config_dword(instance->pdev,
501 MFI_1068_PCSR_OFFSET, pcidata);
502
503 for (i = 0; i < 2; i++)
504 msleep(1000); /* need to wait 2 secs again */
505
506 pcidata = 0;
507 pci_read_config_dword(instance->pdev,
508 MFI_1068_FW_HANDSHAKE_OFFSET, &pcidata);
509 dev_notice(&instance->pdev->dev, "1068 offset handshake read=%x\n", pcidata);
510 if ((pcidata & 0xffff0000) == MFI_1068_FW_READY) {
511 dev_notice(&instance->pdev->dev, "1068 offset pcidt=%x\n", pcidata);
512 pcidata = 0;
513 pci_write_config_dword(instance->pdev,
514 MFI_1068_FW_HANDSHAKE_OFFSET, pcidata);
515 }
516 }
517 return 0;
518 }
519
520 /**
521 * megasas_check_reset_xscale - For controller reset check
522 * @regs: MFI register set
523 */
524 static int
525 megasas_check_reset_xscale(struct megasas_instance *instance,
526 struct megasas_register_set __iomem *regs)
527 {
528 if ((atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) &&
529 (le32_to_cpu(*instance->consumer) ==
530 MEGASAS_ADPRESET_INPROG_SIGN))
531 return 1;
532 return 0;
533 }
534
535 static struct megasas_instance_template megasas_instance_template_xscale = {
536
537 .fire_cmd = megasas_fire_cmd_xscale,
538 .enable_intr = megasas_enable_intr_xscale,
539 .disable_intr = megasas_disable_intr_xscale,
540 .clear_intr = megasas_clear_intr_xscale,
541 .read_fw_status_reg = megasas_read_fw_status_reg_xscale,
542 .adp_reset = megasas_adp_reset_xscale,
543 .check_reset = megasas_check_reset_xscale,
544 .service_isr = megasas_isr,
545 .tasklet = megasas_complete_cmd_dpc,
546 .init_adapter = megasas_init_adapter_mfi,
547 .build_and_issue_cmd = megasas_build_and_issue_cmd,
548 .issue_dcmd = megasas_issue_dcmd,
549 };
550
551 /**
552 * This is the end of set of functions & definitions specific
553 * to xscale (deviceid : 1064R, PERC5) controllers
554 */
555
556 /**
557 * The following functions are defined for ppc (deviceid : 0x60)
558 * controllers
559 */
560
561 /**
562 * megasas_enable_intr_ppc - Enables interrupts
563 * @regs: MFI register set
564 */
565 static inline void
566 megasas_enable_intr_ppc(struct megasas_instance *instance)
567 {
568 struct megasas_register_set __iomem *regs;
569
570 regs = instance->reg_set;
571 writel(0xFFFFFFFF, &(regs)->outbound_doorbell_clear);
572
573 writel(~0x80000000, &(regs)->outbound_intr_mask);
574
575 /* Dummy readl to force pci flush */
576 readl(&regs->outbound_intr_mask);
577 }
578
579 /**
580 * megasas_disable_intr_ppc - Disable interrupt
581 * @regs: MFI register set
582 */
583 static inline void
584 megasas_disable_intr_ppc(struct megasas_instance *instance)
585 {
586 struct megasas_register_set __iomem *regs;
587 u32 mask = 0xFFFFFFFF;
588
589 regs = instance->reg_set;
590 writel(mask, &regs->outbound_intr_mask);
591 /* Dummy readl to force pci flush */
592 readl(&regs->outbound_intr_mask);
593 }
594
595 /**
596 * megasas_read_fw_status_reg_ppc - returns the current FW status value
597 * @regs: MFI register set
598 */
599 static u32
600 megasas_read_fw_status_reg_ppc(struct megasas_register_set __iomem * regs)
601 {
602 return readl(&(regs)->outbound_scratch_pad);
603 }
604
605 /**
606 * megasas_clear_interrupt_ppc - Check & clear interrupt
607 * @regs: MFI register set
608 */
609 static int
610 megasas_clear_intr_ppc(struct megasas_register_set __iomem * regs)
611 {
612 u32 status, mfiStatus = 0;
613
614 /*
615 * Check if it is our interrupt
616 */
617 status = readl(&regs->outbound_intr_status);
618
619 if (status & MFI_REPLY_1078_MESSAGE_INTERRUPT)
620 mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE;
621
622 if (status & MFI_G2_OUTBOUND_DOORBELL_CHANGE_INTERRUPT)
623 mfiStatus |= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE;
624
625 /*
626 * Clear the interrupt by writing back the same value
627 */
628 writel(status, &regs->outbound_doorbell_clear);
629
630 /* Dummy readl to force pci flush */
631 readl(&regs->outbound_doorbell_clear);
632
633 return mfiStatus;
634 }
635
636 /**
637 * megasas_fire_cmd_ppc - Sends command to the FW
638 * @frame_phys_addr : Physical address of cmd
639 * @frame_count : Number of frames for the command
640 * @regs : MFI register set
641 */
642 static inline void
643 megasas_fire_cmd_ppc(struct megasas_instance *instance,
644 dma_addr_t frame_phys_addr,
645 u32 frame_count,
646 struct megasas_register_set __iomem *regs)
647 {
648 unsigned long flags;
649
650 spin_lock_irqsave(&instance->hba_lock, flags);
651 writel((frame_phys_addr | (frame_count<<1))|1,
652 &(regs)->inbound_queue_port);
653 spin_unlock_irqrestore(&instance->hba_lock, flags);
654 }
655
656 /**
657 * megasas_check_reset_ppc - For controller reset check
658 * @regs: MFI register set
659 */
660 static int
661 megasas_check_reset_ppc(struct megasas_instance *instance,
662 struct megasas_register_set __iomem *regs)
663 {
664 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL)
665 return 1;
666
667 return 0;
668 }
669
670 static struct megasas_instance_template megasas_instance_template_ppc = {
671
672 .fire_cmd = megasas_fire_cmd_ppc,
673 .enable_intr = megasas_enable_intr_ppc,
674 .disable_intr = megasas_disable_intr_ppc,
675 .clear_intr = megasas_clear_intr_ppc,
676 .read_fw_status_reg = megasas_read_fw_status_reg_ppc,
677 .adp_reset = megasas_adp_reset_xscale,
678 .check_reset = megasas_check_reset_ppc,
679 .service_isr = megasas_isr,
680 .tasklet = megasas_complete_cmd_dpc,
681 .init_adapter = megasas_init_adapter_mfi,
682 .build_and_issue_cmd = megasas_build_and_issue_cmd,
683 .issue_dcmd = megasas_issue_dcmd,
684 };
685
686 /**
687 * megasas_enable_intr_skinny - Enables interrupts
688 * @regs: MFI register set
689 */
690 static inline void
691 megasas_enable_intr_skinny(struct megasas_instance *instance)
692 {
693 struct megasas_register_set __iomem *regs;
694
695 regs = instance->reg_set;
696 writel(0xFFFFFFFF, &(regs)->outbound_intr_mask);
697
698 writel(~MFI_SKINNY_ENABLE_INTERRUPT_MASK, &(regs)->outbound_intr_mask);
699
700 /* Dummy readl to force pci flush */
701 readl(&regs->outbound_intr_mask);
702 }
703
704 /**
705 * megasas_disable_intr_skinny - Disables interrupt
706 * @regs: MFI register set
707 */
708 static inline void
709 megasas_disable_intr_skinny(struct megasas_instance *instance)
710 {
711 struct megasas_register_set __iomem *regs;
712 u32 mask = 0xFFFFFFFF;
713
714 regs = instance->reg_set;
715 writel(mask, &regs->outbound_intr_mask);
716 /* Dummy readl to force pci flush */
717 readl(&regs->outbound_intr_mask);
718 }
719
720 /**
721 * megasas_read_fw_status_reg_skinny - returns the current FW status value
722 * @regs: MFI register set
723 */
724 static u32
725 megasas_read_fw_status_reg_skinny(struct megasas_register_set __iomem *regs)
726 {
727 return readl(&(regs)->outbound_scratch_pad);
728 }
729
730 /**
731 * megasas_clear_interrupt_skinny - Check & clear interrupt
732 * @regs: MFI register set
733 */
734 static int
735 megasas_clear_intr_skinny(struct megasas_register_set __iomem *regs)
736 {
737 u32 status;
738 u32 mfiStatus = 0;
739
740 /*
741 * Check if it is our interrupt
742 */
743 status = readl(&regs->outbound_intr_status);
744
745 if (!(status & MFI_SKINNY_ENABLE_INTERRUPT_MASK)) {
746 return 0;
747 }
748
749 /*
750 * Check if it is our interrupt
751 */
752 if ((megasas_read_fw_status_reg_skinny(regs) & MFI_STATE_MASK) ==
753 MFI_STATE_FAULT) {
754 mfiStatus = MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE;
755 } else
756 mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE;
757
758 /*
759 * Clear the interrupt by writing back the same value
760 */
761 writel(status, &regs->outbound_intr_status);
762
763 /*
764 * dummy read to flush PCI
765 */
766 readl(&regs->outbound_intr_status);
767
768 return mfiStatus;
769 }
770
771 /**
772 * megasas_fire_cmd_skinny - Sends command to the FW
773 * @frame_phys_addr : Physical address of cmd
774 * @frame_count : Number of frames for the command
775 * @regs : MFI register set
776 */
777 static inline void
778 megasas_fire_cmd_skinny(struct megasas_instance *instance,
779 dma_addr_t frame_phys_addr,
780 u32 frame_count,
781 struct megasas_register_set __iomem *regs)
782 {
783 unsigned long flags;
784
785 spin_lock_irqsave(&instance->hba_lock, flags);
786 writel(upper_32_bits(frame_phys_addr),
787 &(regs)->inbound_high_queue_port);
788 writel((lower_32_bits(frame_phys_addr) | (frame_count<<1))|1,
789 &(regs)->inbound_low_queue_port);
790 mmiowb();
791 spin_unlock_irqrestore(&instance->hba_lock, flags);
792 }
793
794 /**
795 * megasas_check_reset_skinny - For controller reset check
796 * @regs: MFI register set
797 */
798 static int
799 megasas_check_reset_skinny(struct megasas_instance *instance,
800 struct megasas_register_set __iomem *regs)
801 {
802 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL)
803 return 1;
804
805 return 0;
806 }
807
808 static struct megasas_instance_template megasas_instance_template_skinny = {
809
810 .fire_cmd = megasas_fire_cmd_skinny,
811 .enable_intr = megasas_enable_intr_skinny,
812 .disable_intr = megasas_disable_intr_skinny,
813 .clear_intr = megasas_clear_intr_skinny,
814 .read_fw_status_reg = megasas_read_fw_status_reg_skinny,
815 .adp_reset = megasas_adp_reset_gen2,
816 .check_reset = megasas_check_reset_skinny,
817 .service_isr = megasas_isr,
818 .tasklet = megasas_complete_cmd_dpc,
819 .init_adapter = megasas_init_adapter_mfi,
820 .build_and_issue_cmd = megasas_build_and_issue_cmd,
821 .issue_dcmd = megasas_issue_dcmd,
822 };
823
824
825 /**
826 * The following functions are defined for gen2 (deviceid : 0x78 0x79)
827 * controllers
828 */
829
830 /**
831 * megasas_enable_intr_gen2 - Enables interrupts
832 * @regs: MFI register set
833 */
834 static inline void
835 megasas_enable_intr_gen2(struct megasas_instance *instance)
836 {
837 struct megasas_register_set __iomem *regs;
838
839 regs = instance->reg_set;
840 writel(0xFFFFFFFF, &(regs)->outbound_doorbell_clear);
841
842 /* write ~0x00000005 (4 & 1) to the intr mask*/
843 writel(~MFI_GEN2_ENABLE_INTERRUPT_MASK, &(regs)->outbound_intr_mask);
844
845 /* Dummy readl to force pci flush */
846 readl(&regs->outbound_intr_mask);
847 }
848
849 /**
850 * megasas_disable_intr_gen2 - Disables interrupt
851 * @regs: MFI register set
852 */
853 static inline void
854 megasas_disable_intr_gen2(struct megasas_instance *instance)
855 {
856 struct megasas_register_set __iomem *regs;
857 u32 mask = 0xFFFFFFFF;
858
859 regs = instance->reg_set;
860 writel(mask, &regs->outbound_intr_mask);
861 /* Dummy readl to force pci flush */
862 readl(&regs->outbound_intr_mask);
863 }
864
865 /**
866 * megasas_read_fw_status_reg_gen2 - returns the current FW status value
867 * @regs: MFI register set
868 */
869 static u32
870 megasas_read_fw_status_reg_gen2(struct megasas_register_set __iomem *regs)
871 {
872 return readl(&(regs)->outbound_scratch_pad);
873 }
874
875 /**
876 * megasas_clear_interrupt_gen2 - Check & clear interrupt
877 * @regs: MFI register set
878 */
879 static int
880 megasas_clear_intr_gen2(struct megasas_register_set __iomem *regs)
881 {
882 u32 status;
883 u32 mfiStatus = 0;
884
885 /*
886 * Check if it is our interrupt
887 */
888 status = readl(&regs->outbound_intr_status);
889
890 if (status & MFI_INTR_FLAG_REPLY_MESSAGE) {
891 mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE;
892 }
893 if (status & MFI_G2_OUTBOUND_DOORBELL_CHANGE_INTERRUPT) {
894 mfiStatus |= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE;
895 }
896
897 /*
898 * Clear the interrupt by writing back the same value
899 */
900 if (mfiStatus)
901 writel(status, &regs->outbound_doorbell_clear);
902
903 /* Dummy readl to force pci flush */
904 readl(&regs->outbound_intr_status);
905
906 return mfiStatus;
907 }
908 /**
909 * megasas_fire_cmd_gen2 - Sends command to the FW
910 * @frame_phys_addr : Physical address of cmd
911 * @frame_count : Number of frames for the command
912 * @regs : MFI register set
913 */
914 static inline void
915 megasas_fire_cmd_gen2(struct megasas_instance *instance,
916 dma_addr_t frame_phys_addr,
917 u32 frame_count,
918 struct megasas_register_set __iomem *regs)
919 {
920 unsigned long flags;
921
922 spin_lock_irqsave(&instance->hba_lock, flags);
923 writel((frame_phys_addr | (frame_count<<1))|1,
924 &(regs)->inbound_queue_port);
925 spin_unlock_irqrestore(&instance->hba_lock, flags);
926 }
927
928 /**
929 * megasas_adp_reset_gen2 - For controller reset
930 * @regs: MFI register set
931 */
932 static int
933 megasas_adp_reset_gen2(struct megasas_instance *instance,
934 struct megasas_register_set __iomem *reg_set)
935 {
936 u32 retry = 0 ;
937 u32 HostDiag;
938 u32 __iomem *seq_offset = &reg_set->seq_offset;
939 u32 __iomem *hostdiag_offset = &reg_set->host_diag;
940
941 if (instance->instancet == &megasas_instance_template_skinny) {
942 seq_offset = &reg_set->fusion_seq_offset;
943 hostdiag_offset = &reg_set->fusion_host_diag;
944 }
945
946 writel(0, seq_offset);
947 writel(4, seq_offset);
948 writel(0xb, seq_offset);
949 writel(2, seq_offset);
950 writel(7, seq_offset);
951 writel(0xd, seq_offset);
952
953 msleep(1000);
954
955 HostDiag = (u32)readl(hostdiag_offset);
956
957 while (!(HostDiag & DIAG_WRITE_ENABLE)) {
958 msleep(100);
959 HostDiag = (u32)readl(hostdiag_offset);
960 dev_notice(&instance->pdev->dev, "RESETGEN2: retry=%x, hostdiag=%x\n",
961 retry, HostDiag);
962
963 if (retry++ >= 100)
964 return 1;
965
966 }
967
968 dev_notice(&instance->pdev->dev, "ADP_RESET_GEN2: HostDiag=%x\n", HostDiag);
969
970 writel((HostDiag | DIAG_RESET_ADAPTER), hostdiag_offset);
971
972 ssleep(10);
973
974 HostDiag = (u32)readl(hostdiag_offset);
975 while (HostDiag & DIAG_RESET_ADAPTER) {
976 msleep(100);
977 HostDiag = (u32)readl(hostdiag_offset);
978 dev_notice(&instance->pdev->dev, "RESET_GEN2: retry=%x, hostdiag=%x\n",
979 retry, HostDiag);
980
981 if (retry++ >= 1000)
982 return 1;
983
984 }
985 return 0;
986 }
987
988 /**
989 * megasas_check_reset_gen2 - For controller reset check
990 * @regs: MFI register set
991 */
992 static int
993 megasas_check_reset_gen2(struct megasas_instance *instance,
994 struct megasas_register_set __iomem *regs)
995 {
996 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL)
997 return 1;
998
999 return 0;
1000 }
1001
1002 static struct megasas_instance_template megasas_instance_template_gen2 = {
1003
1004 .fire_cmd = megasas_fire_cmd_gen2,
1005 .enable_intr = megasas_enable_intr_gen2,
1006 .disable_intr = megasas_disable_intr_gen2,
1007 .clear_intr = megasas_clear_intr_gen2,
1008 .read_fw_status_reg = megasas_read_fw_status_reg_gen2,
1009 .adp_reset = megasas_adp_reset_gen2,
1010 .check_reset = megasas_check_reset_gen2,
1011 .service_isr = megasas_isr,
1012 .tasklet = megasas_complete_cmd_dpc,
1013 .init_adapter = megasas_init_adapter_mfi,
1014 .build_and_issue_cmd = megasas_build_and_issue_cmd,
1015 .issue_dcmd = megasas_issue_dcmd,
1016 };
1017
1018 /**
1019 * This is the end of set of functions & definitions
1020 * specific to gen2 (deviceid : 0x78, 0x79) controllers
1021 */
1022
1023 /*
1024 * Template added for TB (Fusion)
1025 */
1026 extern struct megasas_instance_template megasas_instance_template_fusion;
1027
1028 /**
1029 * megasas_issue_polled - Issues a polling command
1030 * @instance: Adapter soft state
1031 * @cmd: Command packet to be issued
1032 *
1033 * For polling, MFI requires the cmd_status to be set to MFI_STAT_INVALID_STATUS before posting.
1034 */
1035 int
1036 megasas_issue_polled(struct megasas_instance *instance, struct megasas_cmd *cmd)
1037 {
1038 struct megasas_header *frame_hdr = &cmd->frame->hdr;
1039
1040 frame_hdr->cmd_status = MFI_STAT_INVALID_STATUS;
1041 frame_hdr->flags |= cpu_to_le16(MFI_FRAME_DONT_POST_IN_REPLY_QUEUE);
1042
1043 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
1044 dev_err(&instance->pdev->dev, "Failed from %s %d\n",
1045 __func__, __LINE__);
1046 return DCMD_NOT_FIRED;
1047 }
1048
1049 instance->instancet->issue_dcmd(instance, cmd);
1050
1051 return wait_and_poll(instance, cmd, instance->requestorId ?
1052 MEGASAS_ROUTINE_WAIT_TIME_VF : MFI_IO_TIMEOUT_SECS);
1053 }
1054
1055 /**
1056 * megasas_issue_blocked_cmd - Synchronous wrapper around regular FW cmds
1057 * @instance: Adapter soft state
1058 * @cmd: Command to be issued
1059 * @timeout: Timeout in seconds
1060 *
1061 * This function waits on an event for the command to be returned from ISR.
1062 * Max wait time is MEGASAS_INTERNAL_CMD_WAIT_TIME secs
1063 * Used to issue ioctl commands.
1064 */
1065 int
1066 megasas_issue_blocked_cmd(struct megasas_instance *instance,
1067 struct megasas_cmd *cmd, int timeout)
1068 {
1069 int ret = 0;
1070 cmd->cmd_status_drv = MFI_STAT_INVALID_STATUS;
1071
1072 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
1073 dev_err(&instance->pdev->dev, "Failed from %s %d\n",
1074 __func__, __LINE__);
1075 return DCMD_NOT_FIRED;
1076 }
1077
1078 instance->instancet->issue_dcmd(instance, cmd);
1079
1080 if (timeout) {
1081 ret = wait_event_timeout(instance->int_cmd_wait_q,
1082 cmd->cmd_status_drv != MFI_STAT_INVALID_STATUS, timeout * HZ);
1083 if (!ret) {
1084 dev_err(&instance->pdev->dev, "Failed from %s %d DCMD Timed out\n",
1085 __func__, __LINE__);
1086 return DCMD_TIMEOUT;
1087 }
1088 } else
1089 wait_event(instance->int_cmd_wait_q,
1090 cmd->cmd_status_drv != MFI_STAT_INVALID_STATUS);
1091
1092 return (cmd->cmd_status_drv == MFI_STAT_OK) ?
1093 DCMD_SUCCESS : DCMD_FAILED;
1094 }
1095
1096 /**
1097 * megasas_issue_blocked_abort_cmd - Aborts previously issued cmd
1098 * @instance: Adapter soft state
1099 * @cmd_to_abort: Previously issued cmd to be aborted
1100 * @timeout: Timeout in seconds
1101 *
1102 * MFI firmware can abort previously issued AEN comamnd (automatic event
1103 * notification). The megasas_issue_blocked_abort_cmd() issues such abort
1104 * cmd and waits for return status.
1105 * Max wait time is MEGASAS_INTERNAL_CMD_WAIT_TIME secs
1106 */
1107 static int
1108 megasas_issue_blocked_abort_cmd(struct megasas_instance *instance,
1109 struct megasas_cmd *cmd_to_abort, int timeout)
1110 {
1111 struct megasas_cmd *cmd;
1112 struct megasas_abort_frame *abort_fr;
1113 int ret = 0;
1114
1115 cmd = megasas_get_cmd(instance);
1116
1117 if (!cmd)
1118 return -1;
1119
1120 abort_fr = &cmd->frame->abort;
1121
1122 /*
1123 * Prepare and issue the abort frame
1124 */
1125 abort_fr->cmd = MFI_CMD_ABORT;
1126 abort_fr->cmd_status = MFI_STAT_INVALID_STATUS;
1127 abort_fr->flags = cpu_to_le16(0);
1128 abort_fr->abort_context = cpu_to_le32(cmd_to_abort->index);
1129 abort_fr->abort_mfi_phys_addr_lo =
1130 cpu_to_le32(lower_32_bits(cmd_to_abort->frame_phys_addr));
1131 abort_fr->abort_mfi_phys_addr_hi =
1132 cpu_to_le32(upper_32_bits(cmd_to_abort->frame_phys_addr));
1133
1134 cmd->sync_cmd = 1;
1135 cmd->cmd_status_drv = MFI_STAT_INVALID_STATUS;
1136
1137 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
1138 dev_err(&instance->pdev->dev, "Failed from %s %d\n",
1139 __func__, __LINE__);
1140 return DCMD_NOT_FIRED;
1141 }
1142
1143 instance->instancet->issue_dcmd(instance, cmd);
1144
1145 if (timeout) {
1146 ret = wait_event_timeout(instance->abort_cmd_wait_q,
1147 cmd->cmd_status_drv != MFI_STAT_INVALID_STATUS, timeout * HZ);
1148 if (!ret) {
1149 dev_err(&instance->pdev->dev, "Failed from %s %d Abort Timed out\n",
1150 __func__, __LINE__);
1151 return DCMD_TIMEOUT;
1152 }
1153 } else
1154 wait_event(instance->abort_cmd_wait_q,
1155 cmd->cmd_status_drv != MFI_STAT_INVALID_STATUS);
1156
1157 cmd->sync_cmd = 0;
1158
1159 megasas_return_cmd(instance, cmd);
1160 return (cmd->cmd_status_drv == MFI_STAT_OK) ?
1161 DCMD_SUCCESS : DCMD_FAILED;
1162 }
1163
1164 /**
1165 * megasas_make_sgl32 - Prepares 32-bit SGL
1166 * @instance: Adapter soft state
1167 * @scp: SCSI command from the mid-layer
1168 * @mfi_sgl: SGL to be filled in
1169 *
1170 * If successful, this function returns the number of SG elements. Otherwise,
1171 * it returnes -1.
1172 */
1173 static int
1174 megasas_make_sgl32(struct megasas_instance *instance, struct scsi_cmnd *scp,
1175 union megasas_sgl *mfi_sgl)
1176 {
1177 int i;
1178 int sge_count;
1179 struct scatterlist *os_sgl;
1180
1181 sge_count = scsi_dma_map(scp);
1182 BUG_ON(sge_count < 0);
1183
1184 if (sge_count) {
1185 scsi_for_each_sg(scp, os_sgl, sge_count, i) {
1186 mfi_sgl->sge32[i].length = cpu_to_le32(sg_dma_len(os_sgl));
1187 mfi_sgl->sge32[i].phys_addr = cpu_to_le32(sg_dma_address(os_sgl));
1188 }
1189 }
1190 return sge_count;
1191 }
1192
1193 /**
1194 * megasas_make_sgl64 - Prepares 64-bit SGL
1195 * @instance: Adapter soft state
1196 * @scp: SCSI command from the mid-layer
1197 * @mfi_sgl: SGL to be filled in
1198 *
1199 * If successful, this function returns the number of SG elements. Otherwise,
1200 * it returnes -1.
1201 */
1202 static int
1203 megasas_make_sgl64(struct megasas_instance *instance, struct scsi_cmnd *scp,
1204 union megasas_sgl *mfi_sgl)
1205 {
1206 int i;
1207 int sge_count;
1208 struct scatterlist *os_sgl;
1209
1210 sge_count = scsi_dma_map(scp);
1211 BUG_ON(sge_count < 0);
1212
1213 if (sge_count) {
1214 scsi_for_each_sg(scp, os_sgl, sge_count, i) {
1215 mfi_sgl->sge64[i].length = cpu_to_le32(sg_dma_len(os_sgl));
1216 mfi_sgl->sge64[i].phys_addr = cpu_to_le64(sg_dma_address(os_sgl));
1217 }
1218 }
1219 return sge_count;
1220 }
1221
1222 /**
1223 * megasas_make_sgl_skinny - Prepares IEEE SGL
1224 * @instance: Adapter soft state
1225 * @scp: SCSI command from the mid-layer
1226 * @mfi_sgl: SGL to be filled in
1227 *
1228 * If successful, this function returns the number of SG elements. Otherwise,
1229 * it returnes -1.
1230 */
1231 static int
1232 megasas_make_sgl_skinny(struct megasas_instance *instance,
1233 struct scsi_cmnd *scp, union megasas_sgl *mfi_sgl)
1234 {
1235 int i;
1236 int sge_count;
1237 struct scatterlist *os_sgl;
1238
1239 sge_count = scsi_dma_map(scp);
1240
1241 if (sge_count) {
1242 scsi_for_each_sg(scp, os_sgl, sge_count, i) {
1243 mfi_sgl->sge_skinny[i].length =
1244 cpu_to_le32(sg_dma_len(os_sgl));
1245 mfi_sgl->sge_skinny[i].phys_addr =
1246 cpu_to_le64(sg_dma_address(os_sgl));
1247 mfi_sgl->sge_skinny[i].flag = cpu_to_le32(0);
1248 }
1249 }
1250 return sge_count;
1251 }
1252
1253 /**
1254 * megasas_get_frame_count - Computes the number of frames
1255 * @frame_type : type of frame- io or pthru frame
1256 * @sge_count : number of sg elements
1257 *
1258 * Returns the number of frames required for numnber of sge's (sge_count)
1259 */
1260
1261 static u32 megasas_get_frame_count(struct megasas_instance *instance,
1262 u8 sge_count, u8 frame_type)
1263 {
1264 int num_cnt;
1265 int sge_bytes;
1266 u32 sge_sz;
1267 u32 frame_count = 0;
1268
1269 sge_sz = (IS_DMA64) ? sizeof(struct megasas_sge64) :
1270 sizeof(struct megasas_sge32);
1271
1272 if (instance->flag_ieee) {
1273 sge_sz = sizeof(struct megasas_sge_skinny);
1274 }
1275
1276 /*
1277 * Main frame can contain 2 SGEs for 64-bit SGLs and
1278 * 3 SGEs for 32-bit SGLs for ldio &
1279 * 1 SGEs for 64-bit SGLs and
1280 * 2 SGEs for 32-bit SGLs for pthru frame
1281 */
1282 if (unlikely(frame_type == PTHRU_FRAME)) {
1283 if (instance->flag_ieee == 1) {
1284 num_cnt = sge_count - 1;
1285 } else if (IS_DMA64)
1286 num_cnt = sge_count - 1;
1287 else
1288 num_cnt = sge_count - 2;
1289 } else {
1290 if (instance->flag_ieee == 1) {
1291 num_cnt = sge_count - 1;
1292 } else if (IS_DMA64)
1293 num_cnt = sge_count - 2;
1294 else
1295 num_cnt = sge_count - 3;
1296 }
1297
1298 if (num_cnt > 0) {
1299 sge_bytes = sge_sz * num_cnt;
1300
1301 frame_count = (sge_bytes / MEGAMFI_FRAME_SIZE) +
1302 ((sge_bytes % MEGAMFI_FRAME_SIZE) ? 1 : 0) ;
1303 }
1304 /* Main frame */
1305 frame_count += 1;
1306
1307 if (frame_count > 7)
1308 frame_count = 8;
1309 return frame_count;
1310 }
1311
1312 /**
1313 * megasas_build_dcdb - Prepares a direct cdb (DCDB) command
1314 * @instance: Adapter soft state
1315 * @scp: SCSI command
1316 * @cmd: Command to be prepared in
1317 *
1318 * This function prepares CDB commands. These are typcially pass-through
1319 * commands to the devices.
1320 */
1321 static int
1322 megasas_build_dcdb(struct megasas_instance *instance, struct scsi_cmnd *scp,
1323 struct megasas_cmd *cmd)
1324 {
1325 u32 is_logical;
1326 u32 device_id;
1327 u16 flags = 0;
1328 struct megasas_pthru_frame *pthru;
1329
1330 is_logical = MEGASAS_IS_LOGICAL(scp->device);
1331 device_id = MEGASAS_DEV_INDEX(scp);
1332 pthru = (struct megasas_pthru_frame *)cmd->frame;
1333
1334 if (scp->sc_data_direction == PCI_DMA_TODEVICE)
1335 flags = MFI_FRAME_DIR_WRITE;
1336 else if (scp->sc_data_direction == PCI_DMA_FROMDEVICE)
1337 flags = MFI_FRAME_DIR_READ;
1338 else if (scp->sc_data_direction == PCI_DMA_NONE)
1339 flags = MFI_FRAME_DIR_NONE;
1340
1341 if (instance->flag_ieee == 1) {
1342 flags |= MFI_FRAME_IEEE;
1343 }
1344
1345 /*
1346 * Prepare the DCDB frame
1347 */
1348 pthru->cmd = (is_logical) ? MFI_CMD_LD_SCSI_IO : MFI_CMD_PD_SCSI_IO;
1349 pthru->cmd_status = 0x0;
1350 pthru->scsi_status = 0x0;
1351 pthru->target_id = device_id;
1352 pthru->lun = scp->device->lun;
1353 pthru->cdb_len = scp->cmd_len;
1354 pthru->timeout = 0;
1355 pthru->pad_0 = 0;
1356 pthru->flags = cpu_to_le16(flags);
1357 pthru->data_xfer_len = cpu_to_le32(scsi_bufflen(scp));
1358
1359 memcpy(pthru->cdb, scp->cmnd, scp->cmd_len);
1360
1361 /*
1362 * If the command is for the tape device, set the
1363 * pthru timeout to the os layer timeout value.
1364 */
1365 if (scp->device->type == TYPE_TAPE) {
1366 if ((scp->request->timeout / HZ) > 0xFFFF)
1367 pthru->timeout = cpu_to_le16(0xFFFF);
1368 else
1369 pthru->timeout = cpu_to_le16(scp->request->timeout / HZ);
1370 }
1371
1372 /*
1373 * Construct SGL
1374 */
1375 if (instance->flag_ieee == 1) {
1376 pthru->flags |= cpu_to_le16(MFI_FRAME_SGL64);
1377 pthru->sge_count = megasas_make_sgl_skinny(instance, scp,
1378 &pthru->sgl);
1379 } else if (IS_DMA64) {
1380 pthru->flags |= cpu_to_le16(MFI_FRAME_SGL64);
1381 pthru->sge_count = megasas_make_sgl64(instance, scp,
1382 &pthru->sgl);
1383 } else
1384 pthru->sge_count = megasas_make_sgl32(instance, scp,
1385 &pthru->sgl);
1386
1387 if (pthru->sge_count > instance->max_num_sge) {
1388 dev_err(&instance->pdev->dev, "DCDB too many SGE NUM=%x\n",
1389 pthru->sge_count);
1390 return 0;
1391 }
1392
1393 /*
1394 * Sense info specific
1395 */
1396 pthru->sense_len = SCSI_SENSE_BUFFERSIZE;
1397 pthru->sense_buf_phys_addr_hi =
1398 cpu_to_le32(upper_32_bits(cmd->sense_phys_addr));
1399 pthru->sense_buf_phys_addr_lo =
1400 cpu_to_le32(lower_32_bits(cmd->sense_phys_addr));
1401
1402 /*
1403 * Compute the total number of frames this command consumes. FW uses
1404 * this number to pull sufficient number of frames from host memory.
1405 */
1406 cmd->frame_count = megasas_get_frame_count(instance, pthru->sge_count,
1407 PTHRU_FRAME);
1408
1409 return cmd->frame_count;
1410 }
1411
1412 /**
1413 * megasas_build_ldio - Prepares IOs to logical devices
1414 * @instance: Adapter soft state
1415 * @scp: SCSI command
1416 * @cmd: Command to be prepared
1417 *
1418 * Frames (and accompanying SGLs) for regular SCSI IOs use this function.
1419 */
1420 static int
1421 megasas_build_ldio(struct megasas_instance *instance, struct scsi_cmnd *scp,
1422 struct megasas_cmd *cmd)
1423 {
1424 u32 device_id;
1425 u8 sc = scp->cmnd[0];
1426 u16 flags = 0;
1427 struct megasas_io_frame *ldio;
1428
1429 device_id = MEGASAS_DEV_INDEX(scp);
1430 ldio = (struct megasas_io_frame *)cmd->frame;
1431
1432 if (scp->sc_data_direction == PCI_DMA_TODEVICE)
1433 flags = MFI_FRAME_DIR_WRITE;
1434 else if (scp->sc_data_direction == PCI_DMA_FROMDEVICE)
1435 flags = MFI_FRAME_DIR_READ;
1436
1437 if (instance->flag_ieee == 1) {
1438 flags |= MFI_FRAME_IEEE;
1439 }
1440
1441 /*
1442 * Prepare the Logical IO frame: 2nd bit is zero for all read cmds
1443 */
1444 ldio->cmd = (sc & 0x02) ? MFI_CMD_LD_WRITE : MFI_CMD_LD_READ;
1445 ldio->cmd_status = 0x0;
1446 ldio->scsi_status = 0x0;
1447 ldio->target_id = device_id;
1448 ldio->timeout = 0;
1449 ldio->reserved_0 = 0;
1450 ldio->pad_0 = 0;
1451 ldio->flags = cpu_to_le16(flags);
1452 ldio->start_lba_hi = 0;
1453 ldio->access_byte = (scp->cmd_len != 6) ? scp->cmnd[1] : 0;
1454
1455 /*
1456 * 6-byte READ(0x08) or WRITE(0x0A) cdb
1457 */
1458 if (scp->cmd_len == 6) {
1459 ldio->lba_count = cpu_to_le32((u32) scp->cmnd[4]);
1460 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[1] << 16) |
1461 ((u32) scp->cmnd[2] << 8) |
1462 (u32) scp->cmnd[3]);
1463
1464 ldio->start_lba_lo &= cpu_to_le32(0x1FFFFF);
1465 }
1466
1467 /*
1468 * 10-byte READ(0x28) or WRITE(0x2A) cdb
1469 */
1470 else if (scp->cmd_len == 10) {
1471 ldio->lba_count = cpu_to_le32((u32) scp->cmnd[8] |
1472 ((u32) scp->cmnd[7] << 8));
1473 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[2] << 24) |
1474 ((u32) scp->cmnd[3] << 16) |
1475 ((u32) scp->cmnd[4] << 8) |
1476 (u32) scp->cmnd[5]);
1477 }
1478
1479 /*
1480 * 12-byte READ(0xA8) or WRITE(0xAA) cdb
1481 */
1482 else if (scp->cmd_len == 12) {
1483 ldio->lba_count = cpu_to_le32(((u32) scp->cmnd[6] << 24) |
1484 ((u32) scp->cmnd[7] << 16) |
1485 ((u32) scp->cmnd[8] << 8) |
1486 (u32) scp->cmnd[9]);
1487
1488 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[2] << 24) |
1489 ((u32) scp->cmnd[3] << 16) |
1490 ((u32) scp->cmnd[4] << 8) |
1491 (u32) scp->cmnd[5]);
1492 }
1493
1494 /*
1495 * 16-byte READ(0x88) or WRITE(0x8A) cdb
1496 */
1497 else if (scp->cmd_len == 16) {
1498 ldio->lba_count = cpu_to_le32(((u32) scp->cmnd[10] << 24) |
1499 ((u32) scp->cmnd[11] << 16) |
1500 ((u32) scp->cmnd[12] << 8) |
1501 (u32) scp->cmnd[13]);
1502
1503 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[6] << 24) |
1504 ((u32) scp->cmnd[7] << 16) |
1505 ((u32) scp->cmnd[8] << 8) |
1506 (u32) scp->cmnd[9]);
1507
1508 ldio->start_lba_hi = cpu_to_le32(((u32) scp->cmnd[2] << 24) |
1509 ((u32) scp->cmnd[3] << 16) |
1510 ((u32) scp->cmnd[4] << 8) |
1511 (u32) scp->cmnd[5]);
1512
1513 }
1514
1515 /*
1516 * Construct SGL
1517 */
1518 if (instance->flag_ieee) {
1519 ldio->flags |= cpu_to_le16(MFI_FRAME_SGL64);
1520 ldio->sge_count = megasas_make_sgl_skinny(instance, scp,
1521 &ldio->sgl);
1522 } else if (IS_DMA64) {
1523 ldio->flags |= cpu_to_le16(MFI_FRAME_SGL64);
1524 ldio->sge_count = megasas_make_sgl64(instance, scp, &ldio->sgl);
1525 } else
1526 ldio->sge_count = megasas_make_sgl32(instance, scp, &ldio->sgl);
1527
1528 if (ldio->sge_count > instance->max_num_sge) {
1529 dev_err(&instance->pdev->dev, "build_ld_io: sge_count = %x\n",
1530 ldio->sge_count);
1531 return 0;
1532 }
1533
1534 /*
1535 * Sense info specific
1536 */
1537 ldio->sense_len = SCSI_SENSE_BUFFERSIZE;
1538 ldio->sense_buf_phys_addr_hi = 0;
1539 ldio->sense_buf_phys_addr_lo = cpu_to_le32(cmd->sense_phys_addr);
1540
1541 /*
1542 * Compute the total number of frames this command consumes. FW uses
1543 * this number to pull sufficient number of frames from host memory.
1544 */
1545 cmd->frame_count = megasas_get_frame_count(instance,
1546 ldio->sge_count, IO_FRAME);
1547
1548 return cmd->frame_count;
1549 }
1550
1551 /**
1552 * megasas_cmd_type - Checks if the cmd is for logical drive/sysPD
1553 * and whether it's RW or non RW
1554 * @scmd: SCSI command
1555 *
1556 */
1557 inline int megasas_cmd_type(struct scsi_cmnd *cmd)
1558 {
1559 int ret;
1560
1561 switch (cmd->cmnd[0]) {
1562 case READ_10:
1563 case WRITE_10:
1564 case READ_12:
1565 case WRITE_12:
1566 case READ_6:
1567 case WRITE_6:
1568 case READ_16:
1569 case WRITE_16:
1570 ret = (MEGASAS_IS_LOGICAL(cmd->device)) ?
1571 READ_WRITE_LDIO : READ_WRITE_SYSPDIO;
1572 break;
1573 default:
1574 ret = (MEGASAS_IS_LOGICAL(cmd->device)) ?
1575 NON_READ_WRITE_LDIO : NON_READ_WRITE_SYSPDIO;
1576 }
1577 return ret;
1578 }
1579
1580 /**
1581 * megasas_dump_pending_frames - Dumps the frame address of all pending cmds
1582 * in FW
1583 * @instance: Adapter soft state
1584 */
1585 static inline void
1586 megasas_dump_pending_frames(struct megasas_instance *instance)
1587 {
1588 struct megasas_cmd *cmd;
1589 int i,n;
1590 union megasas_sgl *mfi_sgl;
1591 struct megasas_io_frame *ldio;
1592 struct megasas_pthru_frame *pthru;
1593 u32 sgcount;
1594 u16 max_cmd = instance->max_fw_cmds;
1595
1596 dev_err(&instance->pdev->dev, "[%d]: Dumping Frame Phys Address of all pending cmds in FW\n",instance->host->host_no);
1597 dev_err(&instance->pdev->dev, "[%d]: Total OS Pending cmds : %d\n",instance->host->host_no,atomic_read(&instance->fw_outstanding));
1598 if (IS_DMA64)
1599 dev_err(&instance->pdev->dev, "[%d]: 64 bit SGLs were sent to FW\n",instance->host->host_no);
1600 else
1601 dev_err(&instance->pdev->dev, "[%d]: 32 bit SGLs were sent to FW\n",instance->host->host_no);
1602
1603 dev_err(&instance->pdev->dev, "[%d]: Pending OS cmds in FW : \n",instance->host->host_no);
1604 for (i = 0; i < max_cmd; i++) {
1605 cmd = instance->cmd_list[i];
1606 if (!cmd->scmd)
1607 continue;
1608 dev_err(&instance->pdev->dev, "[%d]: Frame addr :0x%08lx : ",instance->host->host_no,(unsigned long)cmd->frame_phys_addr);
1609 if (megasas_cmd_type(cmd->scmd) == READ_WRITE_LDIO) {
1610 ldio = (struct megasas_io_frame *)cmd->frame;
1611 mfi_sgl = &ldio->sgl;
1612 sgcount = ldio->sge_count;
1613 dev_err(&instance->pdev->dev, "[%d]: frame count : 0x%x, Cmd : 0x%x, Tgt id : 0x%x,"
1614 " lba lo : 0x%x, lba_hi : 0x%x, sense_buf addr : 0x%x,sge count : 0x%x\n",
1615 instance->host->host_no, cmd->frame_count, ldio->cmd, ldio->target_id,
1616 le32_to_cpu(ldio->start_lba_lo), le32_to_cpu(ldio->start_lba_hi),
1617 le32_to_cpu(ldio->sense_buf_phys_addr_lo), sgcount);
1618 } else {
1619 pthru = (struct megasas_pthru_frame *) cmd->frame;
1620 mfi_sgl = &pthru->sgl;
1621 sgcount = pthru->sge_count;
1622 dev_err(&instance->pdev->dev, "[%d]: frame count : 0x%x, Cmd : 0x%x, Tgt id : 0x%x, "
1623 "lun : 0x%x, cdb_len : 0x%x, data xfer len : 0x%x, sense_buf addr : 0x%x,sge count : 0x%x\n",
1624 instance->host->host_no, cmd->frame_count, pthru->cmd, pthru->target_id,
1625 pthru->lun, pthru->cdb_len, le32_to_cpu(pthru->data_xfer_len),
1626 le32_to_cpu(pthru->sense_buf_phys_addr_lo), sgcount);
1627 }
1628 if (megasas_dbg_lvl & MEGASAS_DBG_LVL) {
1629 for (n = 0; n < sgcount; n++) {
1630 if (IS_DMA64)
1631 dev_err(&instance->pdev->dev, "sgl len : 0x%x, sgl addr : 0x%llx\n",
1632 le32_to_cpu(mfi_sgl->sge64[n].length),
1633 le64_to_cpu(mfi_sgl->sge64[n].phys_addr));
1634 else
1635 dev_err(&instance->pdev->dev, "sgl len : 0x%x, sgl addr : 0x%x\n",
1636 le32_to_cpu(mfi_sgl->sge32[n].length),
1637 le32_to_cpu(mfi_sgl->sge32[n].phys_addr));
1638 }
1639 }
1640 } /*for max_cmd*/
1641 dev_err(&instance->pdev->dev, "[%d]: Pending Internal cmds in FW : \n",instance->host->host_no);
1642 for (i = 0; i < max_cmd; i++) {
1643
1644 cmd = instance->cmd_list[i];
1645
1646 if (cmd->sync_cmd == 1)
1647 dev_err(&instance->pdev->dev, "0x%08lx : ", (unsigned long)cmd->frame_phys_addr);
1648 }
1649 dev_err(&instance->pdev->dev, "[%d]: Dumping Done\n\n",instance->host->host_no);
1650 }
1651
1652 u32
1653 megasas_build_and_issue_cmd(struct megasas_instance *instance,
1654 struct scsi_cmnd *scmd)
1655 {
1656 struct megasas_cmd *cmd;
1657 u32 frame_count;
1658
1659 cmd = megasas_get_cmd(instance);
1660 if (!cmd)
1661 return SCSI_MLQUEUE_HOST_BUSY;
1662
1663 /*
1664 * Logical drive command
1665 */
1666 if (megasas_cmd_type(scmd) == READ_WRITE_LDIO)
1667 frame_count = megasas_build_ldio(instance, scmd, cmd);
1668 else
1669 frame_count = megasas_build_dcdb(instance, scmd, cmd);
1670
1671 if (!frame_count)
1672 goto out_return_cmd;
1673
1674 cmd->scmd = scmd;
1675 scmd->SCp.ptr = (char *)cmd;
1676
1677 /*
1678 * Issue the command to the FW
1679 */
1680 atomic_inc(&instance->fw_outstanding);
1681
1682 instance->instancet->fire_cmd(instance, cmd->frame_phys_addr,
1683 cmd->frame_count-1, instance->reg_set);
1684
1685 return 0;
1686 out_return_cmd:
1687 megasas_return_cmd(instance, cmd);
1688 return SCSI_MLQUEUE_HOST_BUSY;
1689 }
1690
1691
1692 /**
1693 * megasas_queue_command - Queue entry point
1694 * @scmd: SCSI command to be queued
1695 * @done: Callback entry point
1696 */
1697 static int
1698 megasas_queue_command(struct Scsi_Host *shost, struct scsi_cmnd *scmd)
1699 {
1700 struct megasas_instance *instance;
1701 struct MR_PRIV_DEVICE *mr_device_priv_data;
1702
1703 instance = (struct megasas_instance *)
1704 scmd->device->host->hostdata;
1705
1706 if (instance->unload == 1) {
1707 scmd->result = DID_NO_CONNECT << 16;
1708 scmd->scsi_done(scmd);
1709 return 0;
1710 }
1711
1712 if (instance->issuepend_done == 0)
1713 return SCSI_MLQUEUE_HOST_BUSY;
1714
1715
1716 /* Check for an mpio path and adjust behavior */
1717 if (atomic_read(&instance->adprecovery) == MEGASAS_ADPRESET_SM_INFAULT) {
1718 if (megasas_check_mpio_paths(instance, scmd) ==
1719 (DID_REQUEUE << 16)) {
1720 return SCSI_MLQUEUE_HOST_BUSY;
1721 } else {
1722 scmd->result = DID_NO_CONNECT << 16;
1723 scmd->scsi_done(scmd);
1724 return 0;
1725 }
1726 }
1727
1728 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
1729 scmd->result = DID_NO_CONNECT << 16;
1730 scmd->scsi_done(scmd);
1731 return 0;
1732 }
1733
1734 mr_device_priv_data = scmd->device->hostdata;
1735 if (!mr_device_priv_data) {
1736 scmd->result = DID_NO_CONNECT << 16;
1737 scmd->scsi_done(scmd);
1738 return 0;
1739 }
1740
1741 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL)
1742 return SCSI_MLQUEUE_HOST_BUSY;
1743
1744 if (mr_device_priv_data->tm_busy)
1745 return SCSI_MLQUEUE_DEVICE_BUSY;
1746
1747
1748 scmd->result = 0;
1749
1750 if (MEGASAS_IS_LOGICAL(scmd->device) &&
1751 (scmd->device->id >= instance->fw_supported_vd_count ||
1752 scmd->device->lun)) {
1753 scmd->result = DID_BAD_TARGET << 16;
1754 goto out_done;
1755 }
1756
1757 if ((scmd->cmnd[0] == SYNCHRONIZE_CACHE) &&
1758 MEGASAS_IS_LOGICAL(scmd->device) &&
1759 (!instance->fw_sync_cache_support)) {
1760 scmd->result = DID_OK << 16;
1761 goto out_done;
1762 }
1763
1764 return instance->instancet->build_and_issue_cmd(instance, scmd);
1765
1766 out_done:
1767 scmd->scsi_done(scmd);
1768 return 0;
1769 }
1770
1771 static struct megasas_instance *megasas_lookup_instance(u16 host_no)
1772 {
1773 int i;
1774
1775 for (i = 0; i < megasas_mgmt_info.max_index; i++) {
1776
1777 if ((megasas_mgmt_info.instance[i]) &&
1778 (megasas_mgmt_info.instance[i]->host->host_no == host_no))
1779 return megasas_mgmt_info.instance[i];
1780 }
1781
1782 return NULL;
1783 }
1784
1785 /*
1786 * megasas_set_dynamic_target_properties -
1787 * Device property set by driver may not be static and it is required to be
1788 * updated after OCR
1789 *
1790 * set tm_capable.
1791 * set dma alignment (only for eedp protection enable vd).
1792 *
1793 * @sdev: OS provided scsi device
1794 *
1795 * Returns void
1796 */
1797 void megasas_set_dynamic_target_properties(struct scsi_device *sdev)
1798 {
1799 u16 pd_index = 0, ld;
1800 u32 device_id;
1801 struct megasas_instance *instance;
1802 struct fusion_context *fusion;
1803 struct MR_PRIV_DEVICE *mr_device_priv_data;
1804 struct MR_PD_CFG_SEQ_NUM_SYNC *pd_sync;
1805 struct MR_LD_RAID *raid;
1806 struct MR_DRV_RAID_MAP_ALL *local_map_ptr;
1807
1808 instance = megasas_lookup_instance(sdev->host->host_no);
1809 fusion = instance->ctrl_context;
1810 mr_device_priv_data = sdev->hostdata;
1811
1812 if (!fusion || !mr_device_priv_data)
1813 return;
1814
1815 if (MEGASAS_IS_LOGICAL(sdev)) {
1816 device_id = ((sdev->channel % 2) * MEGASAS_MAX_DEV_PER_CHANNEL)
1817 + sdev->id;
1818 local_map_ptr = fusion->ld_drv_map[(instance->map_id & 1)];
1819 ld = MR_TargetIdToLdGet(device_id, local_map_ptr);
1820 if (ld >= instance->fw_supported_vd_count)
1821 return;
1822 raid = MR_LdRaidGet(ld, local_map_ptr);
1823
1824 if (raid->capability.ldPiMode == MR_PROT_INFO_TYPE_CONTROLLER)
1825 blk_queue_update_dma_alignment(sdev->request_queue, 0x7);
1826
1827 mr_device_priv_data->is_tm_capable =
1828 raid->capability.tmCapable;
1829 } else if (instance->use_seqnum_jbod_fp) {
1830 pd_index = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) +
1831 sdev->id;
1832 pd_sync = (void *)fusion->pd_seq_sync
1833 [(instance->pd_seq_map_id - 1) & 1];
1834 mr_device_priv_data->is_tm_capable =
1835 pd_sync->seq[pd_index].capability.tmCapable;
1836 }
1837 }
1838
1839 /*
1840 * megasas_set_nvme_device_properties -
1841 * set nomerges=2
1842 * set virtual page boundary = 4K (current mr_nvme_pg_size is 4K).
1843 * set maximum io transfer = MDTS of NVME device provided by MR firmware.
1844 *
1845 * MR firmware provides value in KB. Caller of this function converts
1846 * kb into bytes.
1847 *
1848 * e.a MDTS=5 means 2^5 * nvme page size. (In case of 4K page size,
1849 * MR firmware provides value 128 as (32 * 4K) = 128K.
1850 *
1851 * @sdev: scsi device
1852 * @max_io_size: maximum io transfer size
1853 *
1854 */
1855 static inline void
1856 megasas_set_nvme_device_properties(struct scsi_device *sdev, u32 max_io_size)
1857 {
1858 struct megasas_instance *instance;
1859 u32 mr_nvme_pg_size;
1860
1861 instance = (struct megasas_instance *)sdev->host->hostdata;
1862 mr_nvme_pg_size = max_t(u32, instance->nvme_page_size,
1863 MR_DEFAULT_NVME_PAGE_SIZE);
1864
1865 blk_queue_max_hw_sectors(sdev->request_queue, (max_io_size / 512));
1866
1867 queue_flag_set_unlocked(QUEUE_FLAG_NOMERGES, sdev->request_queue);
1868 blk_queue_virt_boundary(sdev->request_queue, mr_nvme_pg_size - 1);
1869 }
1870
1871
1872 /*
1873 * megasas_set_static_target_properties -
1874 * Device property set by driver are static and it is not required to be
1875 * updated after OCR.
1876 *
1877 * set io timeout
1878 * set device queue depth
1879 * set nvme device properties. see - megasas_set_nvme_device_properties
1880 *
1881 * @sdev: scsi device
1882 * @is_target_prop true, if fw provided target properties.
1883 */
1884 static void megasas_set_static_target_properties(struct scsi_device *sdev,
1885 bool is_target_prop)
1886 {
1887 u16 target_index = 0;
1888 u8 interface_type;
1889 u32 device_qd = MEGASAS_DEFAULT_CMD_PER_LUN;
1890 u32 max_io_size_kb = MR_DEFAULT_NVME_MDTS_KB;
1891 u32 tgt_device_qd;
1892 struct megasas_instance *instance;
1893 struct MR_PRIV_DEVICE *mr_device_priv_data;
1894
1895 instance = megasas_lookup_instance(sdev->host->host_no);
1896 mr_device_priv_data = sdev->hostdata;
1897 interface_type = mr_device_priv_data->interface_type;
1898
1899 /*
1900 * The RAID firmware may require extended timeouts.
1901 */
1902 blk_queue_rq_timeout(sdev->request_queue, scmd_timeout * HZ);
1903
1904 target_index = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + sdev->id;
1905
1906 switch (interface_type) {
1907 case SAS_PD:
1908 device_qd = MEGASAS_SAS_QD;
1909 break;
1910 case SATA_PD:
1911 device_qd = MEGASAS_SATA_QD;
1912 break;
1913 case NVME_PD:
1914 device_qd = MEGASAS_NVME_QD;
1915 break;
1916 }
1917
1918 if (is_target_prop) {
1919 tgt_device_qd = le32_to_cpu(instance->tgt_prop->device_qdepth);
1920 if (tgt_device_qd &&
1921 (tgt_device_qd <= instance->host->can_queue))
1922 device_qd = tgt_device_qd;
1923
1924 /* max_io_size_kb will be set to non zero for
1925 * nvme based vd and syspd.
1926 */
1927 max_io_size_kb = le32_to_cpu(instance->tgt_prop->max_io_size_kb);
1928 }
1929
1930 if (instance->nvme_page_size && max_io_size_kb)
1931 megasas_set_nvme_device_properties(sdev, (max_io_size_kb << 10));
1932
1933 scsi_change_queue_depth(sdev, device_qd);
1934
1935 }
1936
1937
1938 static int megasas_slave_configure(struct scsi_device *sdev)
1939 {
1940 u16 pd_index = 0;
1941 struct megasas_instance *instance;
1942 int ret_target_prop = DCMD_FAILED;
1943 bool is_target_prop = false;
1944
1945 instance = megasas_lookup_instance(sdev->host->host_no);
1946 if (instance->pd_list_not_supported) {
1947 if (!MEGASAS_IS_LOGICAL(sdev) && sdev->type == TYPE_DISK) {
1948 pd_index = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) +
1949 sdev->id;
1950 if (instance->pd_list[pd_index].driveState !=
1951 MR_PD_STATE_SYSTEM)
1952 return -ENXIO;
1953 }
1954 }
1955
1956 mutex_lock(&instance->reset_mutex);
1957 /* Send DCMD to Firmware and cache the information */
1958 if ((instance->pd_info) && !MEGASAS_IS_LOGICAL(sdev))
1959 megasas_get_pd_info(instance, sdev);
1960
1961 /* Some ventura firmware may not have instance->nvme_page_size set.
1962 * Do not send MR_DCMD_DRV_GET_TARGET_PROP
1963 */
1964 if ((instance->tgt_prop) && (instance->nvme_page_size))
1965 ret_target_prop = megasas_get_target_prop(instance, sdev);
1966
1967 is_target_prop = (ret_target_prop == DCMD_SUCCESS) ? true : false;
1968 megasas_set_static_target_properties(sdev, is_target_prop);
1969
1970 mutex_unlock(&instance->reset_mutex);
1971
1972 /* This sdev property may change post OCR */
1973 megasas_set_dynamic_target_properties(sdev);
1974
1975 return 0;
1976 }
1977
1978 static int megasas_slave_alloc(struct scsi_device *sdev)
1979 {
1980 u16 pd_index = 0;
1981 struct megasas_instance *instance ;
1982 struct MR_PRIV_DEVICE *mr_device_priv_data;
1983
1984 instance = megasas_lookup_instance(sdev->host->host_no);
1985 if (!MEGASAS_IS_LOGICAL(sdev)) {
1986 /*
1987 * Open the OS scan to the SYSTEM PD
1988 */
1989 pd_index =
1990 (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) +
1991 sdev->id;
1992 if ((instance->pd_list_not_supported ||
1993 instance->pd_list[pd_index].driveState ==
1994 MR_PD_STATE_SYSTEM)) {
1995 goto scan_target;
1996 }
1997 return -ENXIO;
1998 }
1999
2000 scan_target:
2001 mr_device_priv_data = kzalloc(sizeof(*mr_device_priv_data),
2002 GFP_KERNEL);
2003 if (!mr_device_priv_data)
2004 return -ENOMEM;
2005 sdev->hostdata = mr_device_priv_data;
2006
2007 atomic_set(&mr_device_priv_data->r1_ldio_hint,
2008 instance->r1_ldio_hint_default);
2009 return 0;
2010 }
2011
2012 static void megasas_slave_destroy(struct scsi_device *sdev)
2013 {
2014 kfree(sdev->hostdata);
2015 sdev->hostdata = NULL;
2016 }
2017
2018 /*
2019 * megasas_complete_outstanding_ioctls - Complete outstanding ioctls after a
2020 * kill adapter
2021 * @instance: Adapter soft state
2022 *
2023 */
2024 static void megasas_complete_outstanding_ioctls(struct megasas_instance *instance)
2025 {
2026 int i;
2027 struct megasas_cmd *cmd_mfi;
2028 struct megasas_cmd_fusion *cmd_fusion;
2029 struct fusion_context *fusion = instance->ctrl_context;
2030
2031 /* Find all outstanding ioctls */
2032 if (fusion) {
2033 for (i = 0; i < instance->max_fw_cmds; i++) {
2034 cmd_fusion = fusion->cmd_list[i];
2035 if (cmd_fusion->sync_cmd_idx != (u32)ULONG_MAX) {
2036 cmd_mfi = instance->cmd_list[cmd_fusion->sync_cmd_idx];
2037 if (cmd_mfi->sync_cmd &&
2038 (cmd_mfi->frame->hdr.cmd != MFI_CMD_ABORT)) {
2039 cmd_mfi->frame->hdr.cmd_status =
2040 MFI_STAT_WRONG_STATE;
2041 megasas_complete_cmd(instance,
2042 cmd_mfi, DID_OK);
2043 }
2044 }
2045 }
2046 } else {
2047 for (i = 0; i < instance->max_fw_cmds; i++) {
2048 cmd_mfi = instance->cmd_list[i];
2049 if (cmd_mfi->sync_cmd && cmd_mfi->frame->hdr.cmd !=
2050 MFI_CMD_ABORT)
2051 megasas_complete_cmd(instance, cmd_mfi, DID_OK);
2052 }
2053 }
2054 }
2055
2056
2057 void megaraid_sas_kill_hba(struct megasas_instance *instance)
2058 {
2059 /* Set critical error to block I/O & ioctls in case caller didn't */
2060 atomic_set(&instance->adprecovery, MEGASAS_HW_CRITICAL_ERROR);
2061 /* Wait 1 second to ensure IO or ioctls in build have posted */
2062 msleep(1000);
2063 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
2064 (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY) ||
2065 (instance->adapter_type != MFI_SERIES)) {
2066 writel(MFI_STOP_ADP, &instance->reg_set->doorbell);
2067 /* Flush */
2068 readl(&instance->reg_set->doorbell);
2069 if (instance->requestorId && instance->peerIsPresent)
2070 memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS);
2071 } else {
2072 writel(MFI_STOP_ADP,
2073 &instance->reg_set->inbound_doorbell);
2074 }
2075 /* Complete outstanding ioctls when adapter is killed */
2076 megasas_complete_outstanding_ioctls(instance);
2077 }
2078
2079 /**
2080 * megasas_check_and_restore_queue_depth - Check if queue depth needs to be
2081 * restored to max value
2082 * @instance: Adapter soft state
2083 *
2084 */
2085 void
2086 megasas_check_and_restore_queue_depth(struct megasas_instance *instance)
2087 {
2088 unsigned long flags;
2089
2090 if (instance->flag & MEGASAS_FW_BUSY
2091 && time_after(jiffies, instance->last_time + 5 * HZ)
2092 && atomic_read(&instance->fw_outstanding) <
2093 instance->throttlequeuedepth + 1) {
2094
2095 spin_lock_irqsave(instance->host->host_lock, flags);
2096 instance->flag &= ~MEGASAS_FW_BUSY;
2097
2098 instance->host->can_queue = instance->cur_can_queue;
2099 spin_unlock_irqrestore(instance->host->host_lock, flags);
2100 }
2101 }
2102
2103 /**
2104 * megasas_complete_cmd_dpc - Returns FW's controller structure
2105 * @instance_addr: Address of adapter soft state
2106 *
2107 * Tasklet to complete cmds
2108 */
2109 static void megasas_complete_cmd_dpc(unsigned long instance_addr)
2110 {
2111 u32 producer;
2112 u32 consumer;
2113 u32 context;
2114 struct megasas_cmd *cmd;
2115 struct megasas_instance *instance =
2116 (struct megasas_instance *)instance_addr;
2117 unsigned long flags;
2118
2119 /* If we have already declared adapter dead, donot complete cmds */
2120 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR)
2121 return;
2122
2123 spin_lock_irqsave(&instance->completion_lock, flags);
2124
2125 producer = le32_to_cpu(*instance->producer);
2126 consumer = le32_to_cpu(*instance->consumer);
2127
2128 while (consumer != producer) {
2129 context = le32_to_cpu(instance->reply_queue[consumer]);
2130 if (context >= instance->max_fw_cmds) {
2131 dev_err(&instance->pdev->dev, "Unexpected context value %x\n",
2132 context);
2133 BUG();
2134 }
2135
2136 cmd = instance->cmd_list[context];
2137
2138 megasas_complete_cmd(instance, cmd, DID_OK);
2139
2140 consumer++;
2141 if (consumer == (instance->max_fw_cmds + 1)) {
2142 consumer = 0;
2143 }
2144 }
2145
2146 *instance->consumer = cpu_to_le32(producer);
2147
2148 spin_unlock_irqrestore(&instance->completion_lock, flags);
2149
2150 /*
2151 * Check if we can restore can_queue
2152 */
2153 megasas_check_and_restore_queue_depth(instance);
2154 }
2155
2156 static void megasas_sriov_heartbeat_handler(struct timer_list *t);
2157
2158 /**
2159 * megasas_start_timer - Initializes sriov heartbeat timer object
2160 * @instance: Adapter soft state
2161 *
2162 */
2163 void megasas_start_timer(struct megasas_instance *instance)
2164 {
2165 struct timer_list *timer = &instance->sriov_heartbeat_timer;
2166
2167 timer_setup(timer, megasas_sriov_heartbeat_handler, 0);
2168 timer->expires = jiffies + MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF;
2169 add_timer(timer);
2170 }
2171
2172 static void
2173 megasas_internal_reset_defer_cmds(struct megasas_instance *instance);
2174
2175 static void
2176 process_fw_state_change_wq(struct work_struct *work);
2177
2178 void megasas_do_ocr(struct megasas_instance *instance)
2179 {
2180 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS1064R) ||
2181 (instance->pdev->device == PCI_DEVICE_ID_DELL_PERC5) ||
2182 (instance->pdev->device == PCI_DEVICE_ID_LSI_VERDE_ZCR)) {
2183 *instance->consumer = cpu_to_le32(MEGASAS_ADPRESET_INPROG_SIGN);
2184 }
2185 instance->instancet->disable_intr(instance);
2186 atomic_set(&instance->adprecovery, MEGASAS_ADPRESET_SM_INFAULT);
2187 instance->issuepend_done = 0;
2188
2189 atomic_set(&instance->fw_outstanding, 0);
2190 megasas_internal_reset_defer_cmds(instance);
2191 process_fw_state_change_wq(&instance->work_init);
2192 }
2193
2194 static int megasas_get_ld_vf_affiliation_111(struct megasas_instance *instance,
2195 int initial)
2196 {
2197 struct megasas_cmd *cmd;
2198 struct megasas_dcmd_frame *dcmd;
2199 struct MR_LD_VF_AFFILIATION_111 *new_affiliation_111 = NULL;
2200 dma_addr_t new_affiliation_111_h;
2201 int ld, retval = 0;
2202 u8 thisVf;
2203
2204 cmd = megasas_get_cmd(instance);
2205
2206 if (!cmd) {
2207 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_vf_affiliation_111:"
2208 "Failed to get cmd for scsi%d\n",
2209 instance->host->host_no);
2210 return -ENOMEM;
2211 }
2212
2213 dcmd = &cmd->frame->dcmd;
2214
2215 if (!instance->vf_affiliation_111) {
2216 dev_warn(&instance->pdev->dev, "SR-IOV: Couldn't get LD/VF "
2217 "affiliation for scsi%d\n", instance->host->host_no);
2218 megasas_return_cmd(instance, cmd);
2219 return -ENOMEM;
2220 }
2221
2222 if (initial)
2223 memset(instance->vf_affiliation_111, 0,
2224 sizeof(struct MR_LD_VF_AFFILIATION_111));
2225 else {
2226 new_affiliation_111 =
2227 pci_alloc_consistent(instance->pdev,
2228 sizeof(struct MR_LD_VF_AFFILIATION_111),
2229 &new_affiliation_111_h);
2230 if (!new_affiliation_111) {
2231 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate "
2232 "memory for new affiliation for scsi%d\n",
2233 instance->host->host_no);
2234 megasas_return_cmd(instance, cmd);
2235 return -ENOMEM;
2236 }
2237 memset(new_affiliation_111, 0,
2238 sizeof(struct MR_LD_VF_AFFILIATION_111));
2239 }
2240
2241 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
2242
2243 dcmd->cmd = MFI_CMD_DCMD;
2244 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
2245 dcmd->sge_count = 1;
2246 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_BOTH);
2247 dcmd->timeout = 0;
2248 dcmd->pad_0 = 0;
2249 dcmd->data_xfer_len =
2250 cpu_to_le32(sizeof(struct MR_LD_VF_AFFILIATION_111));
2251 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_VF_MAP_GET_ALL_LDS_111);
2252
2253 if (initial)
2254 dcmd->sgl.sge32[0].phys_addr =
2255 cpu_to_le32(instance->vf_affiliation_111_h);
2256 else
2257 dcmd->sgl.sge32[0].phys_addr =
2258 cpu_to_le32(new_affiliation_111_h);
2259
2260 dcmd->sgl.sge32[0].length = cpu_to_le32(
2261 sizeof(struct MR_LD_VF_AFFILIATION_111));
2262
2263 dev_warn(&instance->pdev->dev, "SR-IOV: Getting LD/VF affiliation for "
2264 "scsi%d\n", instance->host->host_no);
2265
2266 if (megasas_issue_blocked_cmd(instance, cmd, 0) != DCMD_SUCCESS) {
2267 dev_warn(&instance->pdev->dev, "SR-IOV: LD/VF affiliation DCMD"
2268 " failed with status 0x%x for scsi%d\n",
2269 dcmd->cmd_status, instance->host->host_no);
2270 retval = 1; /* Do a scan if we couldn't get affiliation */
2271 goto out;
2272 }
2273
2274 if (!initial) {
2275 thisVf = new_affiliation_111->thisVf;
2276 for (ld = 0 ; ld < new_affiliation_111->vdCount; ld++)
2277 if (instance->vf_affiliation_111->map[ld].policy[thisVf] !=
2278 new_affiliation_111->map[ld].policy[thisVf]) {
2279 dev_warn(&instance->pdev->dev, "SR-IOV: "
2280 "Got new LD/VF affiliation for scsi%d\n",
2281 instance->host->host_no);
2282 memcpy(instance->vf_affiliation_111,
2283 new_affiliation_111,
2284 sizeof(struct MR_LD_VF_AFFILIATION_111));
2285 retval = 1;
2286 goto out;
2287 }
2288 }
2289 out:
2290 if (new_affiliation_111) {
2291 pci_free_consistent(instance->pdev,
2292 sizeof(struct MR_LD_VF_AFFILIATION_111),
2293 new_affiliation_111,
2294 new_affiliation_111_h);
2295 }
2296
2297 megasas_return_cmd(instance, cmd);
2298
2299 return retval;
2300 }
2301
2302 static int megasas_get_ld_vf_affiliation_12(struct megasas_instance *instance,
2303 int initial)
2304 {
2305 struct megasas_cmd *cmd;
2306 struct megasas_dcmd_frame *dcmd;
2307 struct MR_LD_VF_AFFILIATION *new_affiliation = NULL;
2308 struct MR_LD_VF_MAP *newmap = NULL, *savedmap = NULL;
2309 dma_addr_t new_affiliation_h;
2310 int i, j, retval = 0, found = 0, doscan = 0;
2311 u8 thisVf;
2312
2313 cmd = megasas_get_cmd(instance);
2314
2315 if (!cmd) {
2316 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_vf_affiliation12: "
2317 "Failed to get cmd for scsi%d\n",
2318 instance->host->host_no);
2319 return -ENOMEM;
2320 }
2321
2322 dcmd = &cmd->frame->dcmd;
2323
2324 if (!instance->vf_affiliation) {
2325 dev_warn(&instance->pdev->dev, "SR-IOV: Couldn't get LD/VF "
2326 "affiliation for scsi%d\n", instance->host->host_no);
2327 megasas_return_cmd(instance, cmd);
2328 return -ENOMEM;
2329 }
2330
2331 if (initial)
2332 memset(instance->vf_affiliation, 0, (MAX_LOGICAL_DRIVES + 1) *
2333 sizeof(struct MR_LD_VF_AFFILIATION));
2334 else {
2335 new_affiliation =
2336 pci_alloc_consistent(instance->pdev,
2337 (MAX_LOGICAL_DRIVES + 1) *
2338 sizeof(struct MR_LD_VF_AFFILIATION),
2339 &new_affiliation_h);
2340 if (!new_affiliation) {
2341 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate "
2342 "memory for new affiliation for scsi%d\n",
2343 instance->host->host_no);
2344 megasas_return_cmd(instance, cmd);
2345 return -ENOMEM;
2346 }
2347 memset(new_affiliation, 0, (MAX_LOGICAL_DRIVES + 1) *
2348 sizeof(struct MR_LD_VF_AFFILIATION));
2349 }
2350
2351 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
2352
2353 dcmd->cmd = MFI_CMD_DCMD;
2354 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
2355 dcmd->sge_count = 1;
2356 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_BOTH);
2357 dcmd->timeout = 0;
2358 dcmd->pad_0 = 0;
2359 dcmd->data_xfer_len = cpu_to_le32((MAX_LOGICAL_DRIVES + 1) *
2360 sizeof(struct MR_LD_VF_AFFILIATION));
2361 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_VF_MAP_GET_ALL_LDS);
2362
2363 if (initial)
2364 dcmd->sgl.sge32[0].phys_addr =
2365 cpu_to_le32(instance->vf_affiliation_h);
2366 else
2367 dcmd->sgl.sge32[0].phys_addr =
2368 cpu_to_le32(new_affiliation_h);
2369
2370 dcmd->sgl.sge32[0].length = cpu_to_le32((MAX_LOGICAL_DRIVES + 1) *
2371 sizeof(struct MR_LD_VF_AFFILIATION));
2372
2373 dev_warn(&instance->pdev->dev, "SR-IOV: Getting LD/VF affiliation for "
2374 "scsi%d\n", instance->host->host_no);
2375
2376
2377 if (megasas_issue_blocked_cmd(instance, cmd, 0) != DCMD_SUCCESS) {
2378 dev_warn(&instance->pdev->dev, "SR-IOV: LD/VF affiliation DCMD"
2379 " failed with status 0x%x for scsi%d\n",
2380 dcmd->cmd_status, instance->host->host_no);
2381 retval = 1; /* Do a scan if we couldn't get affiliation */
2382 goto out;
2383 }
2384
2385 if (!initial) {
2386 if (!new_affiliation->ldCount) {
2387 dev_warn(&instance->pdev->dev, "SR-IOV: Got new LD/VF "
2388 "affiliation for passive path for scsi%d\n",
2389 instance->host->host_no);
2390 retval = 1;
2391 goto out;
2392 }
2393 newmap = new_affiliation->map;
2394 savedmap = instance->vf_affiliation->map;
2395 thisVf = new_affiliation->thisVf;
2396 for (i = 0 ; i < new_affiliation->ldCount; i++) {
2397 found = 0;
2398 for (j = 0; j < instance->vf_affiliation->ldCount;
2399 j++) {
2400 if (newmap->ref.targetId ==
2401 savedmap->ref.targetId) {
2402 found = 1;
2403 if (newmap->policy[thisVf] !=
2404 savedmap->policy[thisVf]) {
2405 doscan = 1;
2406 goto out;
2407 }
2408 }
2409 savedmap = (struct MR_LD_VF_MAP *)
2410 ((unsigned char *)savedmap +
2411 savedmap->size);
2412 }
2413 if (!found && newmap->policy[thisVf] !=
2414 MR_LD_ACCESS_HIDDEN) {
2415 doscan = 1;
2416 goto out;
2417 }
2418 newmap = (struct MR_LD_VF_MAP *)
2419 ((unsigned char *)newmap + newmap->size);
2420 }
2421
2422 newmap = new_affiliation->map;
2423 savedmap = instance->vf_affiliation->map;
2424
2425 for (i = 0 ; i < instance->vf_affiliation->ldCount; i++) {
2426 found = 0;
2427 for (j = 0 ; j < new_affiliation->ldCount; j++) {
2428 if (savedmap->ref.targetId ==
2429 newmap->ref.targetId) {
2430 found = 1;
2431 if (savedmap->policy[thisVf] !=
2432 newmap->policy[thisVf]) {
2433 doscan = 1;
2434 goto out;
2435 }
2436 }
2437 newmap = (struct MR_LD_VF_MAP *)
2438 ((unsigned char *)newmap +
2439 newmap->size);
2440 }
2441 if (!found && savedmap->policy[thisVf] !=
2442 MR_LD_ACCESS_HIDDEN) {
2443 doscan = 1;
2444 goto out;
2445 }
2446 savedmap = (struct MR_LD_VF_MAP *)
2447 ((unsigned char *)savedmap +
2448 savedmap->size);
2449 }
2450 }
2451 out:
2452 if (doscan) {
2453 dev_warn(&instance->pdev->dev, "SR-IOV: Got new LD/VF "
2454 "affiliation for scsi%d\n", instance->host->host_no);
2455 memcpy(instance->vf_affiliation, new_affiliation,
2456 new_affiliation->size);
2457 retval = 1;
2458 }
2459
2460 if (new_affiliation)
2461 pci_free_consistent(instance->pdev,
2462 (MAX_LOGICAL_DRIVES + 1) *
2463 sizeof(struct MR_LD_VF_AFFILIATION),
2464 new_affiliation, new_affiliation_h);
2465 megasas_return_cmd(instance, cmd);
2466
2467 return retval;
2468 }
2469
2470 /* This function will get the current SR-IOV LD/VF affiliation */
2471 static int megasas_get_ld_vf_affiliation(struct megasas_instance *instance,
2472 int initial)
2473 {
2474 int retval;
2475
2476 if (instance->PlasmaFW111)
2477 retval = megasas_get_ld_vf_affiliation_111(instance, initial);
2478 else
2479 retval = megasas_get_ld_vf_affiliation_12(instance, initial);
2480 return retval;
2481 }
2482
2483 /* This function will tell FW to start the SR-IOV heartbeat */
2484 int megasas_sriov_start_heartbeat(struct megasas_instance *instance,
2485 int initial)
2486 {
2487 struct megasas_cmd *cmd;
2488 struct megasas_dcmd_frame *dcmd;
2489 int retval = 0;
2490
2491 cmd = megasas_get_cmd(instance);
2492
2493 if (!cmd) {
2494 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_sriov_start_heartbeat: "
2495 "Failed to get cmd for scsi%d\n",
2496 instance->host->host_no);
2497 return -ENOMEM;
2498 }
2499
2500 dcmd = &cmd->frame->dcmd;
2501
2502 if (initial) {
2503 instance->hb_host_mem =
2504 pci_zalloc_consistent(instance->pdev,
2505 sizeof(struct MR_CTRL_HB_HOST_MEM),
2506 &instance->hb_host_mem_h);
2507 if (!instance->hb_host_mem) {
2508 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate"
2509 " memory for heartbeat host memory for scsi%d\n",
2510 instance->host->host_no);
2511 retval = -ENOMEM;
2512 goto out;
2513 }
2514 }
2515
2516 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
2517
2518 dcmd->mbox.s[0] = cpu_to_le16(sizeof(struct MR_CTRL_HB_HOST_MEM));
2519 dcmd->cmd = MFI_CMD_DCMD;
2520 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
2521 dcmd->sge_count = 1;
2522 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_BOTH);
2523 dcmd->timeout = 0;
2524 dcmd->pad_0 = 0;
2525 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_CTRL_HB_HOST_MEM));
2526 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_SHARED_HOST_MEM_ALLOC);
2527
2528 megasas_set_dma_settings(instance, dcmd, instance->hb_host_mem_h,
2529 sizeof(struct MR_CTRL_HB_HOST_MEM));
2530
2531 dev_warn(&instance->pdev->dev, "SR-IOV: Starting heartbeat for scsi%d\n",
2532 instance->host->host_no);
2533
2534 if ((instance->adapter_type != MFI_SERIES) &&
2535 !instance->mask_interrupts)
2536 retval = megasas_issue_blocked_cmd(instance, cmd,
2537 MEGASAS_ROUTINE_WAIT_TIME_VF);
2538 else
2539 retval = megasas_issue_polled(instance, cmd);
2540
2541 if (retval) {
2542 dev_warn(&instance->pdev->dev, "SR-IOV: MR_DCMD_CTRL_SHARED_HOST"
2543 "_MEM_ALLOC DCMD %s for scsi%d\n",
2544 (dcmd->cmd_status == MFI_STAT_INVALID_STATUS) ?
2545 "timed out" : "failed", instance->host->host_no);
2546 retval = 1;
2547 }
2548
2549 out:
2550 megasas_return_cmd(instance, cmd);
2551
2552 return retval;
2553 }
2554
2555 /* Handler for SR-IOV heartbeat */
2556 static void megasas_sriov_heartbeat_handler(struct timer_list *t)
2557 {
2558 struct megasas_instance *instance =
2559 from_timer(instance, t, sriov_heartbeat_timer);
2560
2561 if (instance->hb_host_mem->HB.fwCounter !=
2562 instance->hb_host_mem->HB.driverCounter) {
2563 instance->hb_host_mem->HB.driverCounter =
2564 instance->hb_host_mem->HB.fwCounter;
2565 mod_timer(&instance->sriov_heartbeat_timer,
2566 jiffies + MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF);
2567 } else {
2568 dev_warn(&instance->pdev->dev, "SR-IOV: Heartbeat never "
2569 "completed for scsi%d\n", instance->host->host_no);
2570 schedule_work(&instance->work_init);
2571 }
2572 }
2573
2574 /**
2575 * megasas_wait_for_outstanding - Wait for all outstanding cmds
2576 * @instance: Adapter soft state
2577 *
2578 * This function waits for up to MEGASAS_RESET_WAIT_TIME seconds for FW to
2579 * complete all its outstanding commands. Returns error if one or more IOs
2580 * are pending after this time period. It also marks the controller dead.
2581 */
2582 static int megasas_wait_for_outstanding(struct megasas_instance *instance)
2583 {
2584 int i, sl, outstanding;
2585 u32 reset_index;
2586 u32 wait_time = MEGASAS_RESET_WAIT_TIME;
2587 unsigned long flags;
2588 struct list_head clist_local;
2589 struct megasas_cmd *reset_cmd;
2590 u32 fw_state;
2591
2592 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
2593 dev_info(&instance->pdev->dev, "%s:%d HBA is killed.\n",
2594 __func__, __LINE__);
2595 return FAILED;
2596 }
2597
2598 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) {
2599
2600 INIT_LIST_HEAD(&clist_local);
2601 spin_lock_irqsave(&instance->hba_lock, flags);
2602 list_splice_init(&instance->internal_reset_pending_q,
2603 &clist_local);
2604 spin_unlock_irqrestore(&instance->hba_lock, flags);
2605
2606 dev_notice(&instance->pdev->dev, "HBA reset wait ...\n");
2607 for (i = 0; i < wait_time; i++) {
2608 msleep(1000);
2609 if (atomic_read(&instance->adprecovery) == MEGASAS_HBA_OPERATIONAL)
2610 break;
2611 }
2612
2613 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) {
2614 dev_notice(&instance->pdev->dev, "reset: Stopping HBA.\n");
2615 atomic_set(&instance->adprecovery, MEGASAS_HW_CRITICAL_ERROR);
2616 return FAILED;
2617 }
2618
2619 reset_index = 0;
2620 while (!list_empty(&clist_local)) {
2621 reset_cmd = list_entry((&clist_local)->next,
2622 struct megasas_cmd, list);
2623 list_del_init(&reset_cmd->list);
2624 if (reset_cmd->scmd) {
2625 reset_cmd->scmd->result = DID_REQUEUE << 16;
2626 dev_notice(&instance->pdev->dev, "%d:%p reset [%02x]\n",
2627 reset_index, reset_cmd,
2628 reset_cmd->scmd->cmnd[0]);
2629
2630 reset_cmd->scmd->scsi_done(reset_cmd->scmd);
2631 megasas_return_cmd(instance, reset_cmd);
2632 } else if (reset_cmd->sync_cmd) {
2633 dev_notice(&instance->pdev->dev, "%p synch cmds"
2634 "reset queue\n",
2635 reset_cmd);
2636
2637 reset_cmd->cmd_status_drv = MFI_STAT_INVALID_STATUS;
2638 instance->instancet->fire_cmd(instance,
2639 reset_cmd->frame_phys_addr,
2640 0, instance->reg_set);
2641 } else {
2642 dev_notice(&instance->pdev->dev, "%p unexpected"
2643 "cmds lst\n",
2644 reset_cmd);
2645 }
2646 reset_index++;
2647 }
2648
2649 return SUCCESS;
2650 }
2651
2652 for (i = 0; i < resetwaittime; i++) {
2653 outstanding = atomic_read(&instance->fw_outstanding);
2654
2655 if (!outstanding)
2656 break;
2657
2658 if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) {
2659 dev_notice(&instance->pdev->dev, "[%2d]waiting for %d "
2660 "commands to complete\n",i,outstanding);
2661 /*
2662 * Call cmd completion routine. Cmd to be
2663 * be completed directly without depending on isr.
2664 */
2665 megasas_complete_cmd_dpc((unsigned long)instance);
2666 }
2667
2668 msleep(1000);
2669 }
2670
2671 i = 0;
2672 outstanding = atomic_read(&instance->fw_outstanding);
2673 fw_state = instance->instancet->read_fw_status_reg(instance->reg_set) & MFI_STATE_MASK;
2674
2675 if ((!outstanding && (fw_state == MFI_STATE_OPERATIONAL)))
2676 goto no_outstanding;
2677
2678 if (instance->disableOnlineCtrlReset)
2679 goto kill_hba_and_failed;
2680 do {
2681 if ((fw_state == MFI_STATE_FAULT) || atomic_read(&instance->fw_outstanding)) {
2682 dev_info(&instance->pdev->dev,
2683 "%s:%d waiting_for_outstanding: before issue OCR. FW state = 0x%x, oustanding 0x%x\n",
2684 __func__, __LINE__, fw_state, atomic_read(&instance->fw_outstanding));
2685 if (i == 3)
2686 goto kill_hba_and_failed;
2687 megasas_do_ocr(instance);
2688
2689 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
2690 dev_info(&instance->pdev->dev, "%s:%d OCR failed and HBA is killed.\n",
2691 __func__, __LINE__);
2692 return FAILED;
2693 }
2694 dev_info(&instance->pdev->dev, "%s:%d waiting_for_outstanding: after issue OCR.\n",
2695 __func__, __LINE__);
2696
2697 for (sl = 0; sl < 10; sl++)
2698 msleep(500);
2699
2700 outstanding = atomic_read(&instance->fw_outstanding);
2701
2702 fw_state = instance->instancet->read_fw_status_reg(instance->reg_set) & MFI_STATE_MASK;
2703 if ((!outstanding && (fw_state == MFI_STATE_OPERATIONAL)))
2704 goto no_outstanding;
2705 }
2706 i++;
2707 } while (i <= 3);
2708
2709 no_outstanding:
2710
2711 dev_info(&instance->pdev->dev, "%s:%d no more pending commands remain after reset handling.\n",
2712 __func__, __LINE__);
2713 return SUCCESS;
2714
2715 kill_hba_and_failed:
2716
2717 /* Reset not supported, kill adapter */
2718 dev_info(&instance->pdev->dev, "%s:%d killing adapter scsi%d"
2719 " disableOnlineCtrlReset %d fw_outstanding %d \n",
2720 __func__, __LINE__, instance->host->host_no, instance->disableOnlineCtrlReset,
2721 atomic_read(&instance->fw_outstanding));
2722 megasas_dump_pending_frames(instance);
2723 megaraid_sas_kill_hba(instance);
2724
2725 return FAILED;
2726 }
2727
2728 /**
2729 * megasas_generic_reset - Generic reset routine
2730 * @scmd: Mid-layer SCSI command
2731 *
2732 * This routine implements a generic reset handler for device, bus and host
2733 * reset requests. Device, bus and host specific reset handlers can use this
2734 * function after they do their specific tasks.
2735 */
2736 static int megasas_generic_reset(struct scsi_cmnd *scmd)
2737 {
2738 int ret_val;
2739 struct megasas_instance *instance;
2740
2741 instance = (struct megasas_instance *)scmd->device->host->hostdata;
2742
2743 scmd_printk(KERN_NOTICE, scmd, "megasas: RESET cmd=%x retries=%x\n",
2744 scmd->cmnd[0], scmd->retries);
2745
2746 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
2747 dev_err(&instance->pdev->dev, "cannot recover from previous reset failures\n");
2748 return FAILED;
2749 }
2750
2751 ret_val = megasas_wait_for_outstanding(instance);
2752 if (ret_val == SUCCESS)
2753 dev_notice(&instance->pdev->dev, "reset successful\n");
2754 else
2755 dev_err(&instance->pdev->dev, "failed to do reset\n");
2756
2757 return ret_val;
2758 }
2759
2760 /**
2761 * megasas_reset_timer - quiesce the adapter if required
2762 * @scmd: scsi cmnd
2763 *
2764 * Sets the FW busy flag and reduces the host->can_queue if the
2765 * cmd has not been completed within the timeout period.
2766 */
2767 static enum
2768 blk_eh_timer_return megasas_reset_timer(struct scsi_cmnd *scmd)
2769 {
2770 struct megasas_instance *instance;
2771 unsigned long flags;
2772
2773 if (time_after(jiffies, scmd->jiffies_at_alloc +
2774 (scmd_timeout * 2) * HZ)) {
2775 return BLK_EH_NOT_HANDLED;
2776 }
2777
2778 instance = (struct megasas_instance *)scmd->device->host->hostdata;
2779 if (!(instance->flag & MEGASAS_FW_BUSY)) {
2780 /* FW is busy, throttle IO */
2781 spin_lock_irqsave(instance->host->host_lock, flags);
2782
2783 instance->host->can_queue = instance->throttlequeuedepth;
2784 instance->last_time = jiffies;
2785 instance->flag |= MEGASAS_FW_BUSY;
2786
2787 spin_unlock_irqrestore(instance->host->host_lock, flags);
2788 }
2789 return BLK_EH_RESET_TIMER;
2790 }
2791
2792 /**
2793 * megasas_dump_frame - This function will dump MPT/MFI frame
2794 */
2795 static inline void
2796 megasas_dump_frame(void *mpi_request, int sz)
2797 {
2798 int i;
2799 __le32 *mfp = (__le32 *)mpi_request;
2800
2801 printk(KERN_INFO "IO request frame:\n\t");
2802 for (i = 0; i < sz / sizeof(__le32); i++) {
2803 if (i && ((i % 8) == 0))
2804 printk("\n\t");
2805 printk("%08x ", le32_to_cpu(mfp[i]));
2806 }
2807 printk("\n");
2808 }
2809
2810 /**
2811 * megasas_reset_bus_host - Bus & host reset handler entry point
2812 */
2813 static int megasas_reset_bus_host(struct scsi_cmnd *scmd)
2814 {
2815 int ret;
2816 struct megasas_instance *instance;
2817
2818 instance = (struct megasas_instance *)scmd->device->host->hostdata;
2819
2820 scmd_printk(KERN_INFO, scmd,
2821 "Controller reset is requested due to IO timeout\n"
2822 "SCSI command pointer: (%p)\t SCSI host state: %d\t"
2823 " SCSI host busy: %d\t FW outstanding: %d\n",
2824 scmd, scmd->device->host->shost_state,
2825 atomic_read((atomic_t *)&scmd->device->host->host_busy),
2826 atomic_read(&instance->fw_outstanding));
2827
2828 /*
2829 * First wait for all commands to complete
2830 */
2831 if (instance->adapter_type == MFI_SERIES) {
2832 ret = megasas_generic_reset(scmd);
2833 } else {
2834 struct megasas_cmd_fusion *cmd;
2835 cmd = (struct megasas_cmd_fusion *)scmd->SCp.ptr;
2836 if (cmd)
2837 megasas_dump_frame(cmd->io_request,
2838 MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE);
2839 ret = megasas_reset_fusion(scmd->device->host,
2840 SCSIIO_TIMEOUT_OCR);
2841 }
2842
2843 return ret;
2844 }
2845
2846 /**
2847 * megasas_task_abort - Issues task abort request to firmware
2848 * (supported only for fusion adapters)
2849 * @scmd: SCSI command pointer
2850 */
2851 static int megasas_task_abort(struct scsi_cmnd *scmd)
2852 {
2853 int ret;
2854 struct megasas_instance *instance;
2855
2856 instance = (struct megasas_instance *)scmd->device->host->hostdata;
2857
2858 if (instance->adapter_type != MFI_SERIES)
2859 ret = megasas_task_abort_fusion(scmd);
2860 else {
2861 sdev_printk(KERN_NOTICE, scmd->device, "TASK ABORT not supported\n");
2862 ret = FAILED;
2863 }
2864
2865 return ret;
2866 }
2867
2868 /**
2869 * megasas_reset_target: Issues target reset request to firmware
2870 * (supported only for fusion adapters)
2871 * @scmd: SCSI command pointer
2872 */
2873 static int megasas_reset_target(struct scsi_cmnd *scmd)
2874 {
2875 int ret;
2876 struct megasas_instance *instance;
2877
2878 instance = (struct megasas_instance *)scmd->device->host->hostdata;
2879
2880 if (instance->adapter_type != MFI_SERIES)
2881 ret = megasas_reset_target_fusion(scmd);
2882 else {
2883 sdev_printk(KERN_NOTICE, scmd->device, "TARGET RESET not supported\n");
2884 ret = FAILED;
2885 }
2886
2887 return ret;
2888 }
2889
2890 /**
2891 * megasas_bios_param - Returns disk geometry for a disk
2892 * @sdev: device handle
2893 * @bdev: block device
2894 * @capacity: drive capacity
2895 * @geom: geometry parameters
2896 */
2897 static int
2898 megasas_bios_param(struct scsi_device *sdev, struct block_device *bdev,
2899 sector_t capacity, int geom[])
2900 {
2901 int heads;
2902 int sectors;
2903 sector_t cylinders;
2904 unsigned long tmp;
2905
2906 /* Default heads (64) & sectors (32) */
2907 heads = 64;
2908 sectors = 32;
2909
2910 tmp = heads * sectors;
2911 cylinders = capacity;
2912
2913 sector_div(cylinders, tmp);
2914
2915 /*
2916 * Handle extended translation size for logical drives > 1Gb
2917 */
2918
2919 if (capacity >= 0x200000) {
2920 heads = 255;
2921 sectors = 63;
2922 tmp = heads*sectors;
2923 cylinders = capacity;
2924 sector_div(cylinders, tmp);
2925 }
2926
2927 geom[0] = heads;
2928 geom[1] = sectors;
2929 geom[2] = cylinders;
2930
2931 return 0;
2932 }
2933
2934 static void megasas_aen_polling(struct work_struct *work);
2935
2936 /**
2937 * megasas_service_aen - Processes an event notification
2938 * @instance: Adapter soft state
2939 * @cmd: AEN command completed by the ISR
2940 *
2941 * For AEN, driver sends a command down to FW that is held by the FW till an
2942 * event occurs. When an event of interest occurs, FW completes the command
2943 * that it was previously holding.
2944 *
2945 * This routines sends SIGIO signal to processes that have registered with the
2946 * driver for AEN.
2947 */
2948 static void
2949 megasas_service_aen(struct megasas_instance *instance, struct megasas_cmd *cmd)
2950 {
2951 unsigned long flags;
2952
2953 /*
2954 * Don't signal app if it is just an aborted previously registered aen
2955 */
2956 if ((!cmd->abort_aen) && (instance->unload == 0)) {
2957 spin_lock_irqsave(&poll_aen_lock, flags);
2958 megasas_poll_wait_aen = 1;
2959 spin_unlock_irqrestore(&poll_aen_lock, flags);
2960 wake_up(&megasas_poll_wait);
2961 kill_fasync(&megasas_async_queue, SIGIO, POLL_IN);
2962 }
2963 else
2964 cmd->abort_aen = 0;
2965
2966 instance->aen_cmd = NULL;
2967
2968 megasas_return_cmd(instance, cmd);
2969
2970 if ((instance->unload == 0) &&
2971 ((instance->issuepend_done == 1))) {
2972 struct megasas_aen_event *ev;
2973
2974 ev = kzalloc(sizeof(*ev), GFP_ATOMIC);
2975 if (!ev) {
2976 dev_err(&instance->pdev->dev, "megasas_service_aen: out of memory\n");
2977 } else {
2978 ev->instance = instance;
2979 instance->ev = ev;
2980 INIT_DELAYED_WORK(&ev->hotplug_work,
2981 megasas_aen_polling);
2982 schedule_delayed_work(&ev->hotplug_work, 0);
2983 }
2984 }
2985 }
2986
2987 static ssize_t
2988 megasas_fw_crash_buffer_store(struct device *cdev,
2989 struct device_attribute *attr, const char *buf, size_t count)
2990 {
2991 struct Scsi_Host *shost = class_to_shost(cdev);
2992 struct megasas_instance *instance =
2993 (struct megasas_instance *) shost->hostdata;
2994 int val = 0;
2995 unsigned long flags;
2996
2997 if (kstrtoint(buf, 0, &val) != 0)
2998 return -EINVAL;
2999
3000 spin_lock_irqsave(&instance->crashdump_lock, flags);
3001 instance->fw_crash_buffer_offset = val;
3002 spin_unlock_irqrestore(&instance->crashdump_lock, flags);
3003 return strlen(buf);
3004 }
3005
3006 static ssize_t
3007 megasas_fw_crash_buffer_show(struct device *cdev,
3008 struct device_attribute *attr, char *buf)
3009 {
3010 struct Scsi_Host *shost = class_to_shost(cdev);
3011 struct megasas_instance *instance =
3012 (struct megasas_instance *) shost->hostdata;
3013 u32 size;
3014 unsigned long buff_addr;
3015 unsigned long dmachunk = CRASH_DMA_BUF_SIZE;
3016 unsigned long src_addr;
3017 unsigned long flags;
3018 u32 buff_offset;
3019
3020 spin_lock_irqsave(&instance->crashdump_lock, flags);
3021 buff_offset = instance->fw_crash_buffer_offset;
3022 if (!instance->crash_dump_buf &&
3023 !((instance->fw_crash_state == AVAILABLE) ||
3024 (instance->fw_crash_state == COPYING))) {
3025 dev_err(&instance->pdev->dev,
3026 "Firmware crash dump is not available\n");
3027 spin_unlock_irqrestore(&instance->crashdump_lock, flags);
3028 return -EINVAL;
3029 }
3030
3031 buff_addr = (unsigned long) buf;
3032
3033 if (buff_offset > (instance->fw_crash_buffer_size * dmachunk)) {
3034 dev_err(&instance->pdev->dev,
3035 "Firmware crash dump offset is out of range\n");
3036 spin_unlock_irqrestore(&instance->crashdump_lock, flags);
3037 return 0;
3038 }
3039
3040 size = (instance->fw_crash_buffer_size * dmachunk) - buff_offset;
3041 size = (size >= PAGE_SIZE) ? (PAGE_SIZE - 1) : size;
3042
3043 src_addr = (unsigned long)instance->crash_buf[buff_offset / dmachunk] +
3044 (buff_offset % dmachunk);
3045 memcpy(buf, (void *)src_addr, size);
3046 spin_unlock_irqrestore(&instance->crashdump_lock, flags);
3047
3048 return size;
3049 }
3050
3051 static ssize_t
3052 megasas_fw_crash_buffer_size_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
3059 return snprintf(buf, PAGE_SIZE, "%ld\n", (unsigned long)
3060 ((instance->fw_crash_buffer_size) * 1024 * 1024)/PAGE_SIZE);
3061 }
3062
3063 static ssize_t
3064 megasas_fw_crash_state_store(struct device *cdev,
3065 struct device_attribute *attr, const char *buf, size_t count)
3066 {
3067 struct Scsi_Host *shost = class_to_shost(cdev);
3068 struct megasas_instance *instance =
3069 (struct megasas_instance *) shost->hostdata;
3070 int val = 0;
3071 unsigned long flags;
3072
3073 if (kstrtoint(buf, 0, &val) != 0)
3074 return -EINVAL;
3075
3076 if ((val <= AVAILABLE || val > COPY_ERROR)) {
3077 dev_err(&instance->pdev->dev, "application updates invalid "
3078 "firmware crash state\n");
3079 return -EINVAL;
3080 }
3081
3082 instance->fw_crash_state = val;
3083
3084 if ((val == COPIED) || (val == COPY_ERROR)) {
3085 spin_lock_irqsave(&instance->crashdump_lock, flags);
3086 megasas_free_host_crash_buffer(instance);
3087 spin_unlock_irqrestore(&instance->crashdump_lock, flags);
3088 if (val == COPY_ERROR)
3089 dev_info(&instance->pdev->dev, "application failed to "
3090 "copy Firmware crash dump\n");
3091 else
3092 dev_info(&instance->pdev->dev, "Firmware crash dump "
3093 "copied successfully\n");
3094 }
3095 return strlen(buf);
3096 }
3097
3098 static ssize_t
3099 megasas_fw_crash_state_show(struct device *cdev,
3100 struct device_attribute *attr, char *buf)
3101 {
3102 struct Scsi_Host *shost = class_to_shost(cdev);
3103 struct megasas_instance *instance =
3104 (struct megasas_instance *) shost->hostdata;
3105
3106 return snprintf(buf, PAGE_SIZE, "%d\n", instance->fw_crash_state);
3107 }
3108
3109 static ssize_t
3110 megasas_page_size_show(struct device *cdev,
3111 struct device_attribute *attr, char *buf)
3112 {
3113 return snprintf(buf, PAGE_SIZE, "%ld\n", (unsigned long)PAGE_SIZE - 1);
3114 }
3115
3116 static ssize_t
3117 megasas_ldio_outstanding_show(struct device *cdev, struct device_attribute *attr,
3118 char *buf)
3119 {
3120 struct Scsi_Host *shost = class_to_shost(cdev);
3121 struct megasas_instance *instance = (struct megasas_instance *)shost->hostdata;
3122
3123 return snprintf(buf, PAGE_SIZE, "%d\n", atomic_read(&instance->ldio_outstanding));
3124 }
3125
3126 static ssize_t
3127 megasas_fw_cmds_outstanding_show(struct device *cdev,
3128 struct device_attribute *attr, char *buf)
3129 {
3130 struct Scsi_Host *shost = class_to_shost(cdev);
3131 struct megasas_instance *instance = (struct megasas_instance *)shost->hostdata;
3132
3133 return snprintf(buf, PAGE_SIZE, "%d\n", atomic_read(&instance->fw_outstanding));
3134 }
3135
3136 static DEVICE_ATTR(fw_crash_buffer, S_IRUGO | S_IWUSR,
3137 megasas_fw_crash_buffer_show, megasas_fw_crash_buffer_store);
3138 static DEVICE_ATTR(fw_crash_buffer_size, S_IRUGO,
3139 megasas_fw_crash_buffer_size_show, NULL);
3140 static DEVICE_ATTR(fw_crash_state, S_IRUGO | S_IWUSR,
3141 megasas_fw_crash_state_show, megasas_fw_crash_state_store);
3142 static DEVICE_ATTR(page_size, S_IRUGO,
3143 megasas_page_size_show, NULL);
3144 static DEVICE_ATTR(ldio_outstanding, S_IRUGO,
3145 megasas_ldio_outstanding_show, NULL);
3146 static DEVICE_ATTR(fw_cmds_outstanding, S_IRUGO,
3147 megasas_fw_cmds_outstanding_show, NULL);
3148
3149 struct device_attribute *megaraid_host_attrs[] = {
3150 &dev_attr_fw_crash_buffer_size,
3151 &dev_attr_fw_crash_buffer,
3152 &dev_attr_fw_crash_state,
3153 &dev_attr_page_size,
3154 &dev_attr_ldio_outstanding,
3155 &dev_attr_fw_cmds_outstanding,
3156 NULL,
3157 };
3158
3159 /*
3160 * Scsi host template for megaraid_sas driver
3161 */
3162 static struct scsi_host_template megasas_template = {
3163
3164 .module = THIS_MODULE,
3165 .name = "Avago SAS based MegaRAID driver",
3166 .proc_name = "megaraid_sas",
3167 .slave_configure = megasas_slave_configure,
3168 .slave_alloc = megasas_slave_alloc,
3169 .slave_destroy = megasas_slave_destroy,
3170 .queuecommand = megasas_queue_command,
3171 .eh_target_reset_handler = megasas_reset_target,
3172 .eh_abort_handler = megasas_task_abort,
3173 .eh_host_reset_handler = megasas_reset_bus_host,
3174 .eh_timed_out = megasas_reset_timer,
3175 .shost_attrs = megaraid_host_attrs,
3176 .bios_param = megasas_bios_param,
3177 .use_clustering = ENABLE_CLUSTERING,
3178 .change_queue_depth = scsi_change_queue_depth,
3179 .no_write_same = 1,
3180 };
3181
3182 /**
3183 * megasas_complete_int_cmd - Completes an internal command
3184 * @instance: Adapter soft state
3185 * @cmd: Command to be completed
3186 *
3187 * The megasas_issue_blocked_cmd() function waits for a command to complete
3188 * after it issues a command. This function wakes up that waiting routine by
3189 * calling wake_up() on the wait queue.
3190 */
3191 static void
3192 megasas_complete_int_cmd(struct megasas_instance *instance,
3193 struct megasas_cmd *cmd)
3194 {
3195 cmd->cmd_status_drv = cmd->frame->io.cmd_status;
3196 wake_up(&instance->int_cmd_wait_q);
3197 }
3198
3199 /**
3200 * megasas_complete_abort - Completes aborting a command
3201 * @instance: Adapter soft state
3202 * @cmd: Cmd that was issued to abort another cmd
3203 *
3204 * The megasas_issue_blocked_abort_cmd() function waits on abort_cmd_wait_q
3205 * after it issues an abort on a previously issued command. This function
3206 * wakes up all functions waiting on the same wait queue.
3207 */
3208 static void
3209 megasas_complete_abort(struct megasas_instance *instance,
3210 struct megasas_cmd *cmd)
3211 {
3212 if (cmd->sync_cmd) {
3213 cmd->sync_cmd = 0;
3214 cmd->cmd_status_drv = 0;
3215 wake_up(&instance->abort_cmd_wait_q);
3216 }
3217 }
3218
3219 /**
3220 * megasas_complete_cmd - Completes a command
3221 * @instance: Adapter soft state
3222 * @cmd: Command to be completed
3223 * @alt_status: If non-zero, use this value as status to
3224 * SCSI mid-layer instead of the value returned
3225 * by the FW. This should be used if caller wants
3226 * an alternate status (as in the case of aborted
3227 * commands)
3228 */
3229 void
3230 megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd,
3231 u8 alt_status)
3232 {
3233 int exception = 0;
3234 struct megasas_header *hdr = &cmd->frame->hdr;
3235 unsigned long flags;
3236 struct fusion_context *fusion = instance->ctrl_context;
3237 u32 opcode, status;
3238
3239 /* flag for the retry reset */
3240 cmd->retry_for_fw_reset = 0;
3241
3242 if (cmd->scmd)
3243 cmd->scmd->SCp.ptr = NULL;
3244
3245 switch (hdr->cmd) {
3246 case MFI_CMD_INVALID:
3247 /* Some older 1068 controller FW may keep a pended
3248 MR_DCMD_CTRL_EVENT_GET_INFO left over from the main kernel
3249 when booting the kdump kernel. Ignore this command to
3250 prevent a kernel panic on shutdown of the kdump kernel. */
3251 dev_warn(&instance->pdev->dev, "MFI_CMD_INVALID command "
3252 "completed\n");
3253 dev_warn(&instance->pdev->dev, "If you have a controller "
3254 "other than PERC5, please upgrade your firmware\n");
3255 break;
3256 case MFI_CMD_PD_SCSI_IO:
3257 case MFI_CMD_LD_SCSI_IO:
3258
3259 /*
3260 * MFI_CMD_PD_SCSI_IO and MFI_CMD_LD_SCSI_IO could have been
3261 * issued either through an IO path or an IOCTL path. If it
3262 * was via IOCTL, we will send it to internal completion.
3263 */
3264 if (cmd->sync_cmd) {
3265 cmd->sync_cmd = 0;
3266 megasas_complete_int_cmd(instance, cmd);
3267 break;
3268 }
3269
3270 case MFI_CMD_LD_READ:
3271 case MFI_CMD_LD_WRITE:
3272
3273 if (alt_status) {
3274 cmd->scmd->result = alt_status << 16;
3275 exception = 1;
3276 }
3277
3278 if (exception) {
3279
3280 atomic_dec(&instance->fw_outstanding);
3281
3282 scsi_dma_unmap(cmd->scmd);
3283 cmd->scmd->scsi_done(cmd->scmd);
3284 megasas_return_cmd(instance, cmd);
3285
3286 break;
3287 }
3288
3289 switch (hdr->cmd_status) {
3290
3291 case MFI_STAT_OK:
3292 cmd->scmd->result = DID_OK << 16;
3293 break;
3294
3295 case MFI_STAT_SCSI_IO_FAILED:
3296 case MFI_STAT_LD_INIT_IN_PROGRESS:
3297 cmd->scmd->result =
3298 (DID_ERROR << 16) | hdr->scsi_status;
3299 break;
3300
3301 case MFI_STAT_SCSI_DONE_WITH_ERROR:
3302
3303 cmd->scmd->result = (DID_OK << 16) | hdr->scsi_status;
3304
3305 if (hdr->scsi_status == SAM_STAT_CHECK_CONDITION) {
3306 memset(cmd->scmd->sense_buffer, 0,
3307 SCSI_SENSE_BUFFERSIZE);
3308 memcpy(cmd->scmd->sense_buffer, cmd->sense,
3309 hdr->sense_len);
3310
3311 cmd->scmd->result |= DRIVER_SENSE << 24;
3312 }
3313
3314 break;
3315
3316 case MFI_STAT_LD_OFFLINE:
3317 case MFI_STAT_DEVICE_NOT_FOUND:
3318 cmd->scmd->result = DID_BAD_TARGET << 16;
3319 break;
3320
3321 default:
3322 dev_printk(KERN_DEBUG, &instance->pdev->dev, "MFI FW status %#x\n",
3323 hdr->cmd_status);
3324 cmd->scmd->result = DID_ERROR << 16;
3325 break;
3326 }
3327
3328 atomic_dec(&instance->fw_outstanding);
3329
3330 scsi_dma_unmap(cmd->scmd);
3331 cmd->scmd->scsi_done(cmd->scmd);
3332 megasas_return_cmd(instance, cmd);
3333
3334 break;
3335
3336 case MFI_CMD_SMP:
3337 case MFI_CMD_STP:
3338 case MFI_CMD_NVME:
3339 megasas_complete_int_cmd(instance, cmd);
3340 break;
3341
3342 case MFI_CMD_DCMD:
3343 opcode = le32_to_cpu(cmd->frame->dcmd.opcode);
3344 /* Check for LD map update */
3345 if ((opcode == MR_DCMD_LD_MAP_GET_INFO)
3346 && (cmd->frame->dcmd.mbox.b[1] == 1)) {
3347 fusion->fast_path_io = 0;
3348 spin_lock_irqsave(instance->host->host_lock, flags);
3349 status = cmd->frame->hdr.cmd_status;
3350 instance->map_update_cmd = NULL;
3351 if (status != MFI_STAT_OK) {
3352 if (status != MFI_STAT_NOT_FOUND)
3353 dev_warn(&instance->pdev->dev, "map syncfailed, status = 0x%x\n",
3354 cmd->frame->hdr.cmd_status);
3355 else {
3356 megasas_return_cmd(instance, cmd);
3357 spin_unlock_irqrestore(
3358 instance->host->host_lock,
3359 flags);
3360 break;
3361 }
3362 }
3363
3364 megasas_return_cmd(instance, cmd);
3365
3366 /*
3367 * Set fast path IO to ZERO.
3368 * Validate Map will set proper value.
3369 * Meanwhile all IOs will go as LD IO.
3370 */
3371 if (status == MFI_STAT_OK &&
3372 (MR_ValidateMapInfo(instance, (instance->map_id + 1)))) {
3373 instance->map_id++;
3374 fusion->fast_path_io = 1;
3375 } else {
3376 fusion->fast_path_io = 0;
3377 }
3378
3379 megasas_sync_map_info(instance);
3380 spin_unlock_irqrestore(instance->host->host_lock,
3381 flags);
3382 break;
3383 }
3384 if (opcode == MR_DCMD_CTRL_EVENT_GET_INFO ||
3385 opcode == MR_DCMD_CTRL_EVENT_GET) {
3386 spin_lock_irqsave(&poll_aen_lock, flags);
3387 megasas_poll_wait_aen = 0;
3388 spin_unlock_irqrestore(&poll_aen_lock, flags);
3389 }
3390
3391 /* FW has an updated PD sequence */
3392 if ((opcode == MR_DCMD_SYSTEM_PD_MAP_GET_INFO) &&
3393 (cmd->frame->dcmd.mbox.b[0] == 1)) {
3394
3395 spin_lock_irqsave(instance->host->host_lock, flags);
3396 status = cmd->frame->hdr.cmd_status;
3397 instance->jbod_seq_cmd = NULL;
3398 megasas_return_cmd(instance, cmd);
3399
3400 if (status == MFI_STAT_OK) {
3401 instance->pd_seq_map_id++;
3402 /* Re-register a pd sync seq num cmd */
3403 if (megasas_sync_pd_seq_num(instance, true))
3404 instance->use_seqnum_jbod_fp = false;
3405 } else
3406 instance->use_seqnum_jbod_fp = false;
3407
3408 spin_unlock_irqrestore(instance->host->host_lock, flags);
3409 break;
3410 }
3411
3412 /*
3413 * See if got an event notification
3414 */
3415 if (opcode == MR_DCMD_CTRL_EVENT_WAIT)
3416 megasas_service_aen(instance, cmd);
3417 else
3418 megasas_complete_int_cmd(instance, cmd);
3419
3420 break;
3421
3422 case MFI_CMD_ABORT:
3423 /*
3424 * Cmd issued to abort another cmd returned
3425 */
3426 megasas_complete_abort(instance, cmd);
3427 break;
3428
3429 default:
3430 dev_info(&instance->pdev->dev, "Unknown command completed! [0x%X]\n",
3431 hdr->cmd);
3432 megasas_complete_int_cmd(instance, cmd);
3433 break;
3434 }
3435 }
3436
3437 /**
3438 * megasas_issue_pending_cmds_again - issue all pending cmds
3439 * in FW again because of the fw reset
3440 * @instance: Adapter soft state
3441 */
3442 static inline void
3443 megasas_issue_pending_cmds_again(struct megasas_instance *instance)
3444 {
3445 struct megasas_cmd *cmd;
3446 struct list_head clist_local;
3447 union megasas_evt_class_locale class_locale;
3448 unsigned long flags;
3449 u32 seq_num;
3450
3451 INIT_LIST_HEAD(&clist_local);
3452 spin_lock_irqsave(&instance->hba_lock, flags);
3453 list_splice_init(&instance->internal_reset_pending_q, &clist_local);
3454 spin_unlock_irqrestore(&instance->hba_lock, flags);
3455
3456 while (!list_empty(&clist_local)) {
3457 cmd = list_entry((&clist_local)->next,
3458 struct megasas_cmd, list);
3459 list_del_init(&cmd->list);
3460
3461 if (cmd->sync_cmd || cmd->scmd) {
3462 dev_notice(&instance->pdev->dev, "command %p, %p:%d"
3463 "detected to be pending while HBA reset\n",
3464 cmd, cmd->scmd, cmd->sync_cmd);
3465
3466 cmd->retry_for_fw_reset++;
3467
3468 if (cmd->retry_for_fw_reset == 3) {
3469 dev_notice(&instance->pdev->dev, "cmd %p, %p:%d"
3470 "was tried multiple times during reset."
3471 "Shutting down the HBA\n",
3472 cmd, cmd->scmd, cmd->sync_cmd);
3473 instance->instancet->disable_intr(instance);
3474 atomic_set(&instance->fw_reset_no_pci_access, 1);
3475 megaraid_sas_kill_hba(instance);
3476 return;
3477 }
3478 }
3479
3480 if (cmd->sync_cmd == 1) {
3481 if (cmd->scmd) {
3482 dev_notice(&instance->pdev->dev, "unexpected"
3483 "cmd attached to internal command!\n");
3484 }
3485 dev_notice(&instance->pdev->dev, "%p synchronous cmd"
3486 "on the internal reset queue,"
3487 "issue it again.\n", cmd);
3488 cmd->cmd_status_drv = MFI_STAT_INVALID_STATUS;
3489 instance->instancet->fire_cmd(instance,
3490 cmd->frame_phys_addr,
3491 0, instance->reg_set);
3492 } else if (cmd->scmd) {
3493 dev_notice(&instance->pdev->dev, "%p scsi cmd [%02x]"
3494 "detected on the internal queue, issue again.\n",
3495 cmd, cmd->scmd->cmnd[0]);
3496
3497 atomic_inc(&instance->fw_outstanding);
3498 instance->instancet->fire_cmd(instance,
3499 cmd->frame_phys_addr,
3500 cmd->frame_count-1, instance->reg_set);
3501 } else {
3502 dev_notice(&instance->pdev->dev, "%p unexpected cmd on the"
3503 "internal reset defer list while re-issue!!\n",
3504 cmd);
3505 }
3506 }
3507
3508 if (instance->aen_cmd) {
3509 dev_notice(&instance->pdev->dev, "aen_cmd in def process\n");
3510 megasas_return_cmd(instance, instance->aen_cmd);
3511
3512 instance->aen_cmd = NULL;
3513 }
3514
3515 /*
3516 * Initiate AEN (Asynchronous Event Notification)
3517 */
3518 seq_num = instance->last_seq_num;
3519 class_locale.members.reserved = 0;
3520 class_locale.members.locale = MR_EVT_LOCALE_ALL;
3521 class_locale.members.class = MR_EVT_CLASS_DEBUG;
3522
3523 megasas_register_aen(instance, seq_num, class_locale.word);
3524 }
3525
3526 /**
3527 * Move the internal reset pending commands to a deferred queue.
3528 *
3529 * We move the commands pending at internal reset time to a
3530 * pending queue. This queue would be flushed after successful
3531 * completion of the internal reset sequence. if the internal reset
3532 * did not complete in time, the kernel reset handler would flush
3533 * these commands.
3534 **/
3535 static void
3536 megasas_internal_reset_defer_cmds(struct megasas_instance *instance)
3537 {
3538 struct megasas_cmd *cmd;
3539 int i;
3540 u16 max_cmd = instance->max_fw_cmds;
3541 u32 defer_index;
3542 unsigned long flags;
3543
3544 defer_index = 0;
3545 spin_lock_irqsave(&instance->mfi_pool_lock, flags);
3546 for (i = 0; i < max_cmd; i++) {
3547 cmd = instance->cmd_list[i];
3548 if (cmd->sync_cmd == 1 || cmd->scmd) {
3549 dev_notice(&instance->pdev->dev, "moving cmd[%d]:%p:%d:%p"
3550 "on the defer queue as internal\n",
3551 defer_index, cmd, cmd->sync_cmd, cmd->scmd);
3552
3553 if (!list_empty(&cmd->list)) {
3554 dev_notice(&instance->pdev->dev, "ERROR while"
3555 " moving this cmd:%p, %d %p, it was"
3556 "discovered on some list?\n",
3557 cmd, cmd->sync_cmd, cmd->scmd);
3558
3559 list_del_init(&cmd->list);
3560 }
3561 defer_index++;
3562 list_add_tail(&cmd->list,
3563 &instance->internal_reset_pending_q);
3564 }
3565 }
3566 spin_unlock_irqrestore(&instance->mfi_pool_lock, flags);
3567 }
3568
3569
3570 static void
3571 process_fw_state_change_wq(struct work_struct *work)
3572 {
3573 struct megasas_instance *instance =
3574 container_of(work, struct megasas_instance, work_init);
3575 u32 wait;
3576 unsigned long flags;
3577
3578 if (atomic_read(&instance->adprecovery) != MEGASAS_ADPRESET_SM_INFAULT) {
3579 dev_notice(&instance->pdev->dev, "error, recovery st %x\n",
3580 atomic_read(&instance->adprecovery));
3581 return ;
3582 }
3583
3584 if (atomic_read(&instance->adprecovery) == MEGASAS_ADPRESET_SM_INFAULT) {
3585 dev_notice(&instance->pdev->dev, "FW detected to be in fault"
3586 "state, restarting it...\n");
3587
3588 instance->instancet->disable_intr(instance);
3589 atomic_set(&instance->fw_outstanding, 0);
3590
3591 atomic_set(&instance->fw_reset_no_pci_access, 1);
3592 instance->instancet->adp_reset(instance, instance->reg_set);
3593 atomic_set(&instance->fw_reset_no_pci_access, 0);
3594
3595 dev_notice(&instance->pdev->dev, "FW restarted successfully,"
3596 "initiating next stage...\n");
3597
3598 dev_notice(&instance->pdev->dev, "HBA recovery state machine,"
3599 "state 2 starting...\n");
3600
3601 /* waiting for about 20 second before start the second init */
3602 for (wait = 0; wait < 30; wait++) {
3603 msleep(1000);
3604 }
3605
3606 if (megasas_transition_to_ready(instance, 1)) {
3607 dev_notice(&instance->pdev->dev, "adapter not ready\n");
3608
3609 atomic_set(&instance->fw_reset_no_pci_access, 1);
3610 megaraid_sas_kill_hba(instance);
3611 return ;
3612 }
3613
3614 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS1064R) ||
3615 (instance->pdev->device == PCI_DEVICE_ID_DELL_PERC5) ||
3616 (instance->pdev->device == PCI_DEVICE_ID_LSI_VERDE_ZCR)
3617 ) {
3618 *instance->consumer = *instance->producer;
3619 } else {
3620 *instance->consumer = 0;
3621 *instance->producer = 0;
3622 }
3623
3624 megasas_issue_init_mfi(instance);
3625
3626 spin_lock_irqsave(&instance->hba_lock, flags);
3627 atomic_set(&instance->adprecovery, MEGASAS_HBA_OPERATIONAL);
3628 spin_unlock_irqrestore(&instance->hba_lock, flags);
3629 instance->instancet->enable_intr(instance);
3630
3631 megasas_issue_pending_cmds_again(instance);
3632 instance->issuepend_done = 1;
3633 }
3634 }
3635
3636 /**
3637 * megasas_deplete_reply_queue - Processes all completed commands
3638 * @instance: Adapter soft state
3639 * @alt_status: Alternate status to be returned to
3640 * SCSI mid-layer instead of the status
3641 * returned by the FW
3642 * Note: this must be called with hba lock held
3643 */
3644 static int
3645 megasas_deplete_reply_queue(struct megasas_instance *instance,
3646 u8 alt_status)
3647 {
3648 u32 mfiStatus;
3649 u32 fw_state;
3650
3651 if ((mfiStatus = instance->instancet->check_reset(instance,
3652 instance->reg_set)) == 1) {
3653 return IRQ_HANDLED;
3654 }
3655
3656 if ((mfiStatus = instance->instancet->clear_intr(
3657 instance->reg_set)
3658 ) == 0) {
3659 /* Hardware may not set outbound_intr_status in MSI-X mode */
3660 if (!instance->msix_vectors)
3661 return IRQ_NONE;
3662 }
3663
3664 instance->mfiStatus = mfiStatus;
3665
3666 if ((mfiStatus & MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE)) {
3667 fw_state = instance->instancet->read_fw_status_reg(
3668 instance->reg_set) & MFI_STATE_MASK;
3669
3670 if (fw_state != MFI_STATE_FAULT) {
3671 dev_notice(&instance->pdev->dev, "fw state:%x\n",
3672 fw_state);
3673 }
3674
3675 if ((fw_state == MFI_STATE_FAULT) &&
3676 (instance->disableOnlineCtrlReset == 0)) {
3677 dev_notice(&instance->pdev->dev, "wait adp restart\n");
3678
3679 if ((instance->pdev->device ==
3680 PCI_DEVICE_ID_LSI_SAS1064R) ||
3681 (instance->pdev->device ==
3682 PCI_DEVICE_ID_DELL_PERC5) ||
3683 (instance->pdev->device ==
3684 PCI_DEVICE_ID_LSI_VERDE_ZCR)) {
3685
3686 *instance->consumer =
3687 cpu_to_le32(MEGASAS_ADPRESET_INPROG_SIGN);
3688 }
3689
3690
3691 instance->instancet->disable_intr(instance);
3692 atomic_set(&instance->adprecovery, MEGASAS_ADPRESET_SM_INFAULT);
3693 instance->issuepend_done = 0;
3694
3695 atomic_set(&instance->fw_outstanding, 0);
3696 megasas_internal_reset_defer_cmds(instance);
3697
3698 dev_notice(&instance->pdev->dev, "fwState=%x, stage:%d\n",
3699 fw_state, atomic_read(&instance->adprecovery));
3700
3701 schedule_work(&instance->work_init);
3702 return IRQ_HANDLED;
3703
3704 } else {
3705 dev_notice(&instance->pdev->dev, "fwstate:%x, dis_OCR=%x\n",
3706 fw_state, instance->disableOnlineCtrlReset);
3707 }
3708 }
3709
3710 tasklet_schedule(&instance->isr_tasklet);
3711 return IRQ_HANDLED;
3712 }
3713 /**
3714 * megasas_isr - isr entry point
3715 */
3716 static irqreturn_t megasas_isr(int irq, void *devp)
3717 {
3718 struct megasas_irq_context *irq_context = devp;
3719 struct megasas_instance *instance = irq_context->instance;
3720 unsigned long flags;
3721 irqreturn_t rc;
3722
3723 if (atomic_read(&instance->fw_reset_no_pci_access))
3724 return IRQ_HANDLED;
3725
3726 spin_lock_irqsave(&instance->hba_lock, flags);
3727 rc = megasas_deplete_reply_queue(instance, DID_OK);
3728 spin_unlock_irqrestore(&instance->hba_lock, flags);
3729
3730 return rc;
3731 }
3732
3733 /**
3734 * megasas_transition_to_ready - Move the FW to READY state
3735 * @instance: Adapter soft state
3736 *
3737 * During the initialization, FW passes can potentially be in any one of
3738 * several possible states. If the FW in operational, waiting-for-handshake
3739 * states, driver must take steps to bring it to ready state. Otherwise, it
3740 * has to wait for the ready state.
3741 */
3742 int
3743 megasas_transition_to_ready(struct megasas_instance *instance, int ocr)
3744 {
3745 int i;
3746 u8 max_wait;
3747 u32 fw_state;
3748 u32 cur_state;
3749 u32 abs_state, curr_abs_state;
3750
3751 abs_state = instance->instancet->read_fw_status_reg(instance->reg_set);
3752 fw_state = abs_state & MFI_STATE_MASK;
3753
3754 if (fw_state != MFI_STATE_READY)
3755 dev_info(&instance->pdev->dev, "Waiting for FW to come to ready"
3756 " state\n");
3757
3758 while (fw_state != MFI_STATE_READY) {
3759
3760 switch (fw_state) {
3761
3762 case MFI_STATE_FAULT:
3763 dev_printk(KERN_DEBUG, &instance->pdev->dev, "FW in FAULT state!!\n");
3764 if (ocr) {
3765 max_wait = MEGASAS_RESET_WAIT_TIME;
3766 cur_state = MFI_STATE_FAULT;
3767 break;
3768 } else
3769 return -ENODEV;
3770
3771 case MFI_STATE_WAIT_HANDSHAKE:
3772 /*
3773 * Set the CLR bit in inbound doorbell
3774 */
3775 if ((instance->pdev->device ==
3776 PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
3777 (instance->pdev->device ==
3778 PCI_DEVICE_ID_LSI_SAS0071SKINNY) ||
3779 (instance->adapter_type != MFI_SERIES))
3780 writel(
3781 MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG,
3782 &instance->reg_set->doorbell);
3783 else
3784 writel(
3785 MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG,
3786 &instance->reg_set->inbound_doorbell);
3787
3788 max_wait = MEGASAS_RESET_WAIT_TIME;
3789 cur_state = MFI_STATE_WAIT_HANDSHAKE;
3790 break;
3791
3792 case MFI_STATE_BOOT_MESSAGE_PENDING:
3793 if ((instance->pdev->device ==
3794 PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
3795 (instance->pdev->device ==
3796 PCI_DEVICE_ID_LSI_SAS0071SKINNY) ||
3797 (instance->adapter_type != MFI_SERIES))
3798 writel(MFI_INIT_HOTPLUG,
3799 &instance->reg_set->doorbell);
3800 else
3801 writel(MFI_INIT_HOTPLUG,
3802 &instance->reg_set->inbound_doorbell);
3803
3804 max_wait = MEGASAS_RESET_WAIT_TIME;
3805 cur_state = MFI_STATE_BOOT_MESSAGE_PENDING;
3806 break;
3807
3808 case MFI_STATE_OPERATIONAL:
3809 /*
3810 * Bring it to READY state; assuming max wait 10 secs
3811 */
3812 instance->instancet->disable_intr(instance);
3813 if ((instance->pdev->device ==
3814 PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
3815 (instance->pdev->device ==
3816 PCI_DEVICE_ID_LSI_SAS0071SKINNY) ||
3817 (instance->adapter_type != MFI_SERIES)) {
3818 writel(MFI_RESET_FLAGS,
3819 &instance->reg_set->doorbell);
3820
3821 if (instance->adapter_type != MFI_SERIES) {
3822 for (i = 0; i < (10 * 1000); i += 20) {
3823 if (readl(
3824 &instance->
3825 reg_set->
3826 doorbell) & 1)
3827 msleep(20);
3828 else
3829 break;
3830 }
3831 }
3832 } else
3833 writel(MFI_RESET_FLAGS,
3834 &instance->reg_set->inbound_doorbell);
3835
3836 max_wait = MEGASAS_RESET_WAIT_TIME;
3837 cur_state = MFI_STATE_OPERATIONAL;
3838 break;
3839
3840 case MFI_STATE_UNDEFINED:
3841 /*
3842 * This state should not last for more than 2 seconds
3843 */
3844 max_wait = MEGASAS_RESET_WAIT_TIME;
3845 cur_state = MFI_STATE_UNDEFINED;
3846 break;
3847
3848 case MFI_STATE_BB_INIT:
3849 max_wait = MEGASAS_RESET_WAIT_TIME;
3850 cur_state = MFI_STATE_BB_INIT;
3851 break;
3852
3853 case MFI_STATE_FW_INIT:
3854 max_wait = MEGASAS_RESET_WAIT_TIME;
3855 cur_state = MFI_STATE_FW_INIT;
3856 break;
3857
3858 case MFI_STATE_FW_INIT_2:
3859 max_wait = MEGASAS_RESET_WAIT_TIME;
3860 cur_state = MFI_STATE_FW_INIT_2;
3861 break;
3862
3863 case MFI_STATE_DEVICE_SCAN:
3864 max_wait = MEGASAS_RESET_WAIT_TIME;
3865 cur_state = MFI_STATE_DEVICE_SCAN;
3866 break;
3867
3868 case MFI_STATE_FLUSH_CACHE:
3869 max_wait = MEGASAS_RESET_WAIT_TIME;
3870 cur_state = MFI_STATE_FLUSH_CACHE;
3871 break;
3872
3873 default:
3874 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Unknown state 0x%x\n",
3875 fw_state);
3876 return -ENODEV;
3877 }
3878
3879 /*
3880 * The cur_state should not last for more than max_wait secs
3881 */
3882 for (i = 0; i < (max_wait * 1000); i++) {
3883 curr_abs_state = instance->instancet->
3884 read_fw_status_reg(instance->reg_set);
3885
3886 if (abs_state == curr_abs_state) {
3887 msleep(1);
3888 } else
3889 break;
3890 }
3891
3892 /*
3893 * Return error if fw_state hasn't changed after max_wait
3894 */
3895 if (curr_abs_state == abs_state) {
3896 dev_printk(KERN_DEBUG, &instance->pdev->dev, "FW state [%d] hasn't changed "
3897 "in %d secs\n", fw_state, max_wait);
3898 return -ENODEV;
3899 }
3900
3901 abs_state = curr_abs_state;
3902 fw_state = curr_abs_state & MFI_STATE_MASK;
3903 }
3904 dev_info(&instance->pdev->dev, "FW now in Ready state\n");
3905
3906 return 0;
3907 }
3908
3909 /**
3910 * megasas_teardown_frame_pool - Destroy the cmd frame DMA pool
3911 * @instance: Adapter soft state
3912 */
3913 static void megasas_teardown_frame_pool(struct megasas_instance *instance)
3914 {
3915 int i;
3916 u16 max_cmd = instance->max_mfi_cmds;
3917 struct megasas_cmd *cmd;
3918
3919 if (!instance->frame_dma_pool)
3920 return;
3921
3922 /*
3923 * Return all frames to pool
3924 */
3925 for (i = 0; i < max_cmd; i++) {
3926
3927 cmd = instance->cmd_list[i];
3928
3929 if (cmd->frame)
3930 dma_pool_free(instance->frame_dma_pool, cmd->frame,
3931 cmd->frame_phys_addr);
3932
3933 if (cmd->sense)
3934 dma_pool_free(instance->sense_dma_pool, cmd->sense,
3935 cmd->sense_phys_addr);
3936 }
3937
3938 /*
3939 * Now destroy the pool itself
3940 */
3941 dma_pool_destroy(instance->frame_dma_pool);
3942 dma_pool_destroy(instance->sense_dma_pool);
3943
3944 instance->frame_dma_pool = NULL;
3945 instance->sense_dma_pool = NULL;
3946 }
3947
3948 /**
3949 * megasas_create_frame_pool - Creates DMA pool for cmd frames
3950 * @instance: Adapter soft state
3951 *
3952 * Each command packet has an embedded DMA memory buffer that is used for
3953 * filling MFI frame and the SG list that immediately follows the frame. This
3954 * function creates those DMA memory buffers for each command packet by using
3955 * PCI pool facility.
3956 */
3957 static int megasas_create_frame_pool(struct megasas_instance *instance)
3958 {
3959 int i;
3960 u16 max_cmd;
3961 u32 sge_sz;
3962 u32 frame_count;
3963 struct megasas_cmd *cmd;
3964
3965 max_cmd = instance->max_mfi_cmds;
3966
3967 /*
3968 * Size of our frame is 64 bytes for MFI frame, followed by max SG
3969 * elements and finally SCSI_SENSE_BUFFERSIZE bytes for sense buffer
3970 */
3971 sge_sz = (IS_DMA64) ? sizeof(struct megasas_sge64) :
3972 sizeof(struct megasas_sge32);
3973
3974 if (instance->flag_ieee)
3975 sge_sz = sizeof(struct megasas_sge_skinny);
3976
3977 /*
3978 * For MFI controllers.
3979 * max_num_sge = 60
3980 * max_sge_sz = 16 byte (sizeof megasas_sge_skinny)
3981 * Total 960 byte (15 MFI frame of 64 byte)
3982 *
3983 * Fusion adapter require only 3 extra frame.
3984 * max_num_sge = 16 (defined as MAX_IOCTL_SGE)
3985 * max_sge_sz = 12 byte (sizeof megasas_sge64)
3986 * Total 192 byte (3 MFI frame of 64 byte)
3987 */
3988 frame_count = (instance->adapter_type == MFI_SERIES) ?
3989 (15 + 1) : (3 + 1);
3990 instance->mfi_frame_size = MEGAMFI_FRAME_SIZE * frame_count;
3991 /*
3992 * Use DMA pool facility provided by PCI layer
3993 */
3994 instance->frame_dma_pool = dma_pool_create("megasas frame pool",
3995 &instance->pdev->dev,
3996 instance->mfi_frame_size, 256, 0);
3997
3998 if (!instance->frame_dma_pool) {
3999 dev_printk(KERN_DEBUG, &instance->pdev->dev, "failed to setup frame pool\n");
4000 return -ENOMEM;
4001 }
4002
4003 instance->sense_dma_pool = dma_pool_create("megasas sense pool",
4004 &instance->pdev->dev, 128,
4005 4, 0);
4006
4007 if (!instance->sense_dma_pool) {
4008 dev_printk(KERN_DEBUG, &instance->pdev->dev, "failed to setup sense pool\n");
4009
4010 dma_pool_destroy(instance->frame_dma_pool);
4011 instance->frame_dma_pool = NULL;
4012
4013 return -ENOMEM;
4014 }
4015
4016 /*
4017 * Allocate and attach a frame to each of the commands in cmd_list.
4018 * By making cmd->index as the context instead of the &cmd, we can
4019 * always use 32bit context regardless of the architecture
4020 */
4021 for (i = 0; i < max_cmd; i++) {
4022
4023 cmd = instance->cmd_list[i];
4024
4025 cmd->frame = dma_pool_alloc(instance->frame_dma_pool,
4026 GFP_KERNEL, &cmd->frame_phys_addr);
4027
4028 cmd->sense = dma_pool_alloc(instance->sense_dma_pool,
4029 GFP_KERNEL, &cmd->sense_phys_addr);
4030
4031 /*
4032 * megasas_teardown_frame_pool() takes care of freeing
4033 * whatever has been allocated
4034 */
4035 if (!cmd->frame || !cmd->sense) {
4036 dev_printk(KERN_DEBUG, &instance->pdev->dev, "dma_pool_alloc failed\n");
4037 megasas_teardown_frame_pool(instance);
4038 return -ENOMEM;
4039 }
4040
4041 memset(cmd->frame, 0, instance->mfi_frame_size);
4042 cmd->frame->io.context = cpu_to_le32(cmd->index);
4043 cmd->frame->io.pad_0 = 0;
4044 if ((instance->adapter_type == MFI_SERIES) && reset_devices)
4045 cmd->frame->hdr.cmd = MFI_CMD_INVALID;
4046 }
4047
4048 return 0;
4049 }
4050
4051 /**
4052 * megasas_free_cmds - Free all the cmds in the free cmd pool
4053 * @instance: Adapter soft state
4054 */
4055 void megasas_free_cmds(struct megasas_instance *instance)
4056 {
4057 int i;
4058
4059 /* First free the MFI frame pool */
4060 megasas_teardown_frame_pool(instance);
4061
4062 /* Free all the commands in the cmd_list */
4063 for (i = 0; i < instance->max_mfi_cmds; i++)
4064
4065 kfree(instance->cmd_list[i]);
4066
4067 /* Free the cmd_list buffer itself */
4068 kfree(instance->cmd_list);
4069 instance->cmd_list = NULL;
4070
4071 INIT_LIST_HEAD(&instance->cmd_pool);
4072 }
4073
4074 /**
4075 * megasas_alloc_cmds - Allocates the command packets
4076 * @instance: Adapter soft state
4077 *
4078 * Each command that is issued to the FW, whether IO commands from the OS or
4079 * internal commands like IOCTLs, are wrapped in local data structure called
4080 * megasas_cmd. The frame embedded in this megasas_cmd is actually issued to
4081 * the FW.
4082 *
4083 * Each frame has a 32-bit field called context (tag). This context is used
4084 * to get back the megasas_cmd from the frame when a frame gets completed in
4085 * the ISR. Typically the address of the megasas_cmd itself would be used as
4086 * the context. But we wanted to keep the differences between 32 and 64 bit
4087 * systems to the mininum. We always use 32 bit integers for the context. In
4088 * this driver, the 32 bit values are the indices into an array cmd_list.
4089 * This array is used only to look up the megasas_cmd given the context. The
4090 * free commands themselves are maintained in a linked list called cmd_pool.
4091 */
4092 int megasas_alloc_cmds(struct megasas_instance *instance)
4093 {
4094 int i;
4095 int j;
4096 u16 max_cmd;
4097 struct megasas_cmd *cmd;
4098
4099 max_cmd = instance->max_mfi_cmds;
4100
4101 /*
4102 * instance->cmd_list is an array of struct megasas_cmd pointers.
4103 * Allocate the dynamic array first and then allocate individual
4104 * commands.
4105 */
4106 instance->cmd_list = kcalloc(max_cmd, sizeof(struct megasas_cmd*), GFP_KERNEL);
4107
4108 if (!instance->cmd_list) {
4109 dev_printk(KERN_DEBUG, &instance->pdev->dev, "out of memory\n");
4110 return -ENOMEM;
4111 }
4112
4113 memset(instance->cmd_list, 0, sizeof(struct megasas_cmd *) *max_cmd);
4114
4115 for (i = 0; i < max_cmd; i++) {
4116 instance->cmd_list[i] = kmalloc(sizeof(struct megasas_cmd),
4117 GFP_KERNEL);
4118
4119 if (!instance->cmd_list[i]) {
4120
4121 for (j = 0; j < i; j++)
4122 kfree(instance->cmd_list[j]);
4123
4124 kfree(instance->cmd_list);
4125 instance->cmd_list = NULL;
4126
4127 return -ENOMEM;
4128 }
4129 }
4130
4131 for (i = 0; i < max_cmd; i++) {
4132 cmd = instance->cmd_list[i];
4133 memset(cmd, 0, sizeof(struct megasas_cmd));
4134 cmd->index = i;
4135 cmd->scmd = NULL;
4136 cmd->instance = instance;
4137
4138 list_add_tail(&cmd->list, &instance->cmd_pool);
4139 }
4140
4141 /*
4142 * Create a frame pool and assign one frame to each cmd
4143 */
4144 if (megasas_create_frame_pool(instance)) {
4145 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Error creating frame DMA pool\n");
4146 megasas_free_cmds(instance);
4147 }
4148
4149 return 0;
4150 }
4151
4152 /*
4153 * dcmd_timeout_ocr_possible - Check if OCR is possible based on Driver/FW state.
4154 * @instance: Adapter soft state
4155 *
4156 * Return 0 for only Fusion adapter, if driver load/unload is not in progress
4157 * or FW is not under OCR.
4158 */
4159 inline int
4160 dcmd_timeout_ocr_possible(struct megasas_instance *instance) {
4161
4162 if (instance->adapter_type == MFI_SERIES)
4163 return KILL_ADAPTER;
4164 else if (instance->unload ||
4165 test_bit(MEGASAS_FUSION_IN_RESET, &instance->reset_flags))
4166 return IGNORE_TIMEOUT;
4167 else
4168 return INITIATE_OCR;
4169 }
4170
4171 static void
4172 megasas_get_pd_info(struct megasas_instance *instance, struct scsi_device *sdev)
4173 {
4174 int ret;
4175 struct megasas_cmd *cmd;
4176 struct megasas_dcmd_frame *dcmd;
4177
4178 struct MR_PRIV_DEVICE *mr_device_priv_data;
4179 u16 device_id = 0;
4180
4181 device_id = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + sdev->id;
4182 cmd = megasas_get_cmd(instance);
4183
4184 if (!cmd) {
4185 dev_err(&instance->pdev->dev, "Failed to get cmd %s\n", __func__);
4186 return;
4187 }
4188
4189 dcmd = &cmd->frame->dcmd;
4190
4191 memset(instance->pd_info, 0, sizeof(*instance->pd_info));
4192 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
4193
4194 dcmd->mbox.s[0] = cpu_to_le16(device_id);
4195 dcmd->cmd = MFI_CMD_DCMD;
4196 dcmd->cmd_status = 0xFF;
4197 dcmd->sge_count = 1;
4198 dcmd->flags = MFI_FRAME_DIR_READ;
4199 dcmd->timeout = 0;
4200 dcmd->pad_0 = 0;
4201 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_PD_INFO));
4202 dcmd->opcode = cpu_to_le32(MR_DCMD_PD_GET_INFO);
4203
4204 megasas_set_dma_settings(instance, dcmd, instance->pd_info_h,
4205 sizeof(struct MR_PD_INFO));
4206
4207 if ((instance->adapter_type != MFI_SERIES) &&
4208 !instance->mask_interrupts)
4209 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS);
4210 else
4211 ret = megasas_issue_polled(instance, cmd);
4212
4213 switch (ret) {
4214 case DCMD_SUCCESS:
4215 mr_device_priv_data = sdev->hostdata;
4216 le16_to_cpus((u16 *)&instance->pd_info->state.ddf.pdType);
4217 mr_device_priv_data->interface_type =
4218 instance->pd_info->state.ddf.pdType.intf;
4219 break;
4220
4221 case DCMD_TIMEOUT:
4222
4223 switch (dcmd_timeout_ocr_possible(instance)) {
4224 case INITIATE_OCR:
4225 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
4226 megasas_reset_fusion(instance->host,
4227 MFI_IO_TIMEOUT_OCR);
4228 break;
4229 case KILL_ADAPTER:
4230 megaraid_sas_kill_hba(instance);
4231 break;
4232 case IGNORE_TIMEOUT:
4233 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n",
4234 __func__, __LINE__);
4235 break;
4236 }
4237
4238 break;
4239 }
4240
4241 if (ret != DCMD_TIMEOUT)
4242 megasas_return_cmd(instance, cmd);
4243
4244 return;
4245 }
4246 /*
4247 * megasas_get_pd_list_info - Returns FW's pd_list structure
4248 * @instance: Adapter soft state
4249 * @pd_list: pd_list structure
4250 *
4251 * Issues an internal command (DCMD) to get the FW's controller PD
4252 * list structure. This information is mainly used to find out SYSTEM
4253 * supported by the FW.
4254 */
4255 static int
4256 megasas_get_pd_list(struct megasas_instance *instance)
4257 {
4258 int ret = 0, pd_index = 0;
4259 struct megasas_cmd *cmd;
4260 struct megasas_dcmd_frame *dcmd;
4261 struct MR_PD_LIST *ci;
4262 struct MR_PD_ADDRESS *pd_addr;
4263 dma_addr_t ci_h = 0;
4264
4265 if (instance->pd_list_not_supported) {
4266 dev_info(&instance->pdev->dev, "MR_DCMD_PD_LIST_QUERY "
4267 "not supported by firmware\n");
4268 return ret;
4269 }
4270
4271 ci = instance->pd_list_buf;
4272 ci_h = instance->pd_list_buf_h;
4273
4274 cmd = megasas_get_cmd(instance);
4275
4276 if (!cmd) {
4277 dev_printk(KERN_DEBUG, &instance->pdev->dev, "(get_pd_list): Failed to get cmd\n");
4278 return -ENOMEM;
4279 }
4280
4281 dcmd = &cmd->frame->dcmd;
4282
4283 memset(ci, 0, sizeof(*ci));
4284 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
4285
4286 dcmd->mbox.b[0] = MR_PD_QUERY_TYPE_EXPOSED_TO_HOST;
4287 dcmd->mbox.b[1] = 0;
4288 dcmd->cmd = MFI_CMD_DCMD;
4289 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
4290 dcmd->sge_count = 1;
4291 dcmd->flags = MFI_FRAME_DIR_READ;
4292 dcmd->timeout = 0;
4293 dcmd->pad_0 = 0;
4294 dcmd->data_xfer_len = cpu_to_le32(MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST));
4295 dcmd->opcode = cpu_to_le32(MR_DCMD_PD_LIST_QUERY);
4296
4297 megasas_set_dma_settings(instance, dcmd, instance->pd_list_buf_h,
4298 (MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST)));
4299
4300 if ((instance->adapter_type != MFI_SERIES) &&
4301 !instance->mask_interrupts)
4302 ret = megasas_issue_blocked_cmd(instance, cmd,
4303 MFI_IO_TIMEOUT_SECS);
4304 else
4305 ret = megasas_issue_polled(instance, cmd);
4306
4307 switch (ret) {
4308 case DCMD_FAILED:
4309 dev_info(&instance->pdev->dev, "MR_DCMD_PD_LIST_QUERY "
4310 "failed/not supported by firmware\n");
4311
4312 if (instance->adapter_type != MFI_SERIES)
4313 megaraid_sas_kill_hba(instance);
4314 else
4315 instance->pd_list_not_supported = 1;
4316 break;
4317 case DCMD_TIMEOUT:
4318
4319 switch (dcmd_timeout_ocr_possible(instance)) {
4320 case INITIATE_OCR:
4321 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
4322 /*
4323 * DCMD failed from AEN path.
4324 * AEN path already hold reset_mutex to avoid PCI access
4325 * while OCR is in progress.
4326 */
4327 mutex_unlock(&instance->reset_mutex);
4328 megasas_reset_fusion(instance->host,
4329 MFI_IO_TIMEOUT_OCR);
4330 mutex_lock(&instance->reset_mutex);
4331 break;
4332 case KILL_ADAPTER:
4333 megaraid_sas_kill_hba(instance);
4334 break;
4335 case IGNORE_TIMEOUT:
4336 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d \n",
4337 __func__, __LINE__);
4338 break;
4339 }
4340
4341 break;
4342
4343 case DCMD_SUCCESS:
4344 pd_addr = ci->addr;
4345
4346 if ((le32_to_cpu(ci->count) >
4347 (MEGASAS_MAX_PD_CHANNELS * MEGASAS_MAX_DEV_PER_CHANNEL)))
4348 break;
4349
4350 memset(instance->local_pd_list, 0,
4351 MEGASAS_MAX_PD * sizeof(struct megasas_pd_list));
4352
4353 for (pd_index = 0; pd_index < le32_to_cpu(ci->count); pd_index++) {
4354 instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].tid =
4355 le16_to_cpu(pd_addr->deviceId);
4356 instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].driveType =
4357 pd_addr->scsiDevType;
4358 instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].driveState =
4359 MR_PD_STATE_SYSTEM;
4360 pd_addr++;
4361 }
4362
4363 memcpy(instance->pd_list, instance->local_pd_list,
4364 sizeof(instance->pd_list));
4365 break;
4366
4367 }
4368
4369 if (ret != DCMD_TIMEOUT)
4370 megasas_return_cmd(instance, cmd);
4371
4372 return ret;
4373 }
4374
4375 /*
4376 * megasas_get_ld_list_info - Returns FW's ld_list structure
4377 * @instance: Adapter soft state
4378 * @ld_list: ld_list structure
4379 *
4380 * Issues an internal command (DCMD) to get the FW's controller PD
4381 * list structure. This information is mainly used to find out SYSTEM
4382 * supported by the FW.
4383 */
4384 static int
4385 megasas_get_ld_list(struct megasas_instance *instance)
4386 {
4387 int ret = 0, ld_index = 0, ids = 0;
4388 struct megasas_cmd *cmd;
4389 struct megasas_dcmd_frame *dcmd;
4390 struct MR_LD_LIST *ci;
4391 dma_addr_t ci_h = 0;
4392 u32 ld_count;
4393
4394 ci = instance->ld_list_buf;
4395 ci_h = instance->ld_list_buf_h;
4396
4397 cmd = megasas_get_cmd(instance);
4398
4399 if (!cmd) {
4400 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_list: Failed to get cmd\n");
4401 return -ENOMEM;
4402 }
4403
4404 dcmd = &cmd->frame->dcmd;
4405
4406 memset(ci, 0, sizeof(*ci));
4407 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
4408
4409 if (instance->supportmax256vd)
4410 dcmd->mbox.b[0] = 1;
4411 dcmd->cmd = MFI_CMD_DCMD;
4412 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
4413 dcmd->sge_count = 1;
4414 dcmd->flags = MFI_FRAME_DIR_READ;
4415 dcmd->timeout = 0;
4416 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_LD_LIST));
4417 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_GET_LIST);
4418 dcmd->pad_0 = 0;
4419
4420 megasas_set_dma_settings(instance, dcmd, ci_h,
4421 sizeof(struct MR_LD_LIST));
4422
4423 if ((instance->adapter_type != MFI_SERIES) &&
4424 !instance->mask_interrupts)
4425 ret = megasas_issue_blocked_cmd(instance, cmd,
4426 MFI_IO_TIMEOUT_SECS);
4427 else
4428 ret = megasas_issue_polled(instance, cmd);
4429
4430 ld_count = le32_to_cpu(ci->ldCount);
4431
4432 switch (ret) {
4433 case DCMD_FAILED:
4434 megaraid_sas_kill_hba(instance);
4435 break;
4436 case DCMD_TIMEOUT:
4437
4438 switch (dcmd_timeout_ocr_possible(instance)) {
4439 case INITIATE_OCR:
4440 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
4441 /*
4442 * DCMD failed from AEN path.
4443 * AEN path already hold reset_mutex to avoid PCI access
4444 * while OCR is in progress.
4445 */
4446 mutex_unlock(&instance->reset_mutex);
4447 megasas_reset_fusion(instance->host,
4448 MFI_IO_TIMEOUT_OCR);
4449 mutex_lock(&instance->reset_mutex);
4450 break;
4451 case KILL_ADAPTER:
4452 megaraid_sas_kill_hba(instance);
4453 break;
4454 case IGNORE_TIMEOUT:
4455 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n",
4456 __func__, __LINE__);
4457 break;
4458 }
4459
4460 break;
4461
4462 case DCMD_SUCCESS:
4463 if (ld_count > instance->fw_supported_vd_count)
4464 break;
4465
4466 memset(instance->ld_ids, 0xff, MAX_LOGICAL_DRIVES_EXT);
4467
4468 for (ld_index = 0; ld_index < ld_count; ld_index++) {
4469 if (ci->ldList[ld_index].state != 0) {
4470 ids = ci->ldList[ld_index].ref.targetId;
4471 instance->ld_ids[ids] = ci->ldList[ld_index].ref.targetId;
4472 }
4473 }
4474
4475 break;
4476 }
4477
4478 if (ret != DCMD_TIMEOUT)
4479 megasas_return_cmd(instance, cmd);
4480
4481 return ret;
4482 }
4483
4484 /**
4485 * megasas_ld_list_query - Returns FW's ld_list structure
4486 * @instance: Adapter soft state
4487 * @ld_list: ld_list structure
4488 *
4489 * Issues an internal command (DCMD) to get the FW's controller PD
4490 * list structure. This information is mainly used to find out SYSTEM
4491 * supported by the FW.
4492 */
4493 static int
4494 megasas_ld_list_query(struct megasas_instance *instance, u8 query_type)
4495 {
4496 int ret = 0, ld_index = 0, ids = 0;
4497 struct megasas_cmd *cmd;
4498 struct megasas_dcmd_frame *dcmd;
4499 struct MR_LD_TARGETID_LIST *ci;
4500 dma_addr_t ci_h = 0;
4501 u32 tgtid_count;
4502
4503 ci = instance->ld_targetid_list_buf;
4504 ci_h = instance->ld_targetid_list_buf_h;
4505
4506 cmd = megasas_get_cmd(instance);
4507
4508 if (!cmd) {
4509 dev_warn(&instance->pdev->dev,
4510 "megasas_ld_list_query: Failed to get cmd\n");
4511 return -ENOMEM;
4512 }
4513
4514 dcmd = &cmd->frame->dcmd;
4515
4516 memset(ci, 0, sizeof(*ci));
4517 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
4518
4519 dcmd->mbox.b[0] = query_type;
4520 if (instance->supportmax256vd)
4521 dcmd->mbox.b[2] = 1;
4522
4523 dcmd->cmd = MFI_CMD_DCMD;
4524 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
4525 dcmd->sge_count = 1;
4526 dcmd->flags = MFI_FRAME_DIR_READ;
4527 dcmd->timeout = 0;
4528 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_LD_TARGETID_LIST));
4529 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_LIST_QUERY);
4530 dcmd->pad_0 = 0;
4531
4532 megasas_set_dma_settings(instance, dcmd, ci_h,
4533 sizeof(struct MR_LD_TARGETID_LIST));
4534
4535 if ((instance->adapter_type != MFI_SERIES) &&
4536 !instance->mask_interrupts)
4537 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS);
4538 else
4539 ret = megasas_issue_polled(instance, cmd);
4540
4541 switch (ret) {
4542 case DCMD_FAILED:
4543 dev_info(&instance->pdev->dev,
4544 "DCMD not supported by firmware - %s %d\n",
4545 __func__, __LINE__);
4546 ret = megasas_get_ld_list(instance);
4547 break;
4548 case DCMD_TIMEOUT:
4549 switch (dcmd_timeout_ocr_possible(instance)) {
4550 case INITIATE_OCR:
4551 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
4552 /*
4553 * DCMD failed from AEN path.
4554 * AEN path already hold reset_mutex to avoid PCI access
4555 * while OCR is in progress.
4556 */
4557 mutex_unlock(&instance->reset_mutex);
4558 megasas_reset_fusion(instance->host,
4559 MFI_IO_TIMEOUT_OCR);
4560 mutex_lock(&instance->reset_mutex);
4561 break;
4562 case KILL_ADAPTER:
4563 megaraid_sas_kill_hba(instance);
4564 break;
4565 case IGNORE_TIMEOUT:
4566 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n",
4567 __func__, __LINE__);
4568 break;
4569 }
4570
4571 break;
4572 case DCMD_SUCCESS:
4573 tgtid_count = le32_to_cpu(ci->count);
4574
4575 if ((tgtid_count > (instance->fw_supported_vd_count)))
4576 break;
4577
4578 memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS);
4579 for (ld_index = 0; ld_index < tgtid_count; ld_index++) {
4580 ids = ci->targetId[ld_index];
4581 instance->ld_ids[ids] = ci->targetId[ld_index];
4582 }
4583
4584 break;
4585 }
4586
4587 if (ret != DCMD_TIMEOUT)
4588 megasas_return_cmd(instance, cmd);
4589
4590 return ret;
4591 }
4592
4593 /*
4594 * megasas_update_ext_vd_details : Update details w.r.t Extended VD
4595 * instance : Controller's instance
4596 */
4597 static void megasas_update_ext_vd_details(struct megasas_instance *instance)
4598 {
4599 struct fusion_context *fusion;
4600 u32 ventura_map_sz = 0;
4601
4602 fusion = instance->ctrl_context;
4603 /* For MFI based controllers return dummy success */
4604 if (!fusion)
4605 return;
4606
4607 instance->supportmax256vd =
4608 instance->ctrl_info_buf->adapterOperations3.supportMaxExtLDs;
4609 /* Below is additional check to address future FW enhancement */
4610 if (instance->ctrl_info_buf->max_lds > 64)
4611 instance->supportmax256vd = 1;
4612
4613 instance->drv_supported_vd_count = MEGASAS_MAX_LD_CHANNELS
4614 * MEGASAS_MAX_DEV_PER_CHANNEL;
4615 instance->drv_supported_pd_count = MEGASAS_MAX_PD_CHANNELS
4616 * MEGASAS_MAX_DEV_PER_CHANNEL;
4617 if (instance->supportmax256vd) {
4618 instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES_EXT;
4619 instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES;
4620 } else {
4621 instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES;
4622 instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES;
4623 }
4624
4625 dev_info(&instance->pdev->dev,
4626 "firmware type\t: %s\n",
4627 instance->supportmax256vd ? "Extended VD(240 VD)firmware" :
4628 "Legacy(64 VD) firmware");
4629
4630 if (instance->max_raid_mapsize) {
4631 ventura_map_sz = instance->max_raid_mapsize *
4632 MR_MIN_MAP_SIZE; /* 64k */
4633 fusion->current_map_sz = ventura_map_sz;
4634 fusion->max_map_sz = ventura_map_sz;
4635 } else {
4636 fusion->old_map_sz = sizeof(struct MR_FW_RAID_MAP) +
4637 (sizeof(struct MR_LD_SPAN_MAP) *
4638 (instance->fw_supported_vd_count - 1));
4639 fusion->new_map_sz = sizeof(struct MR_FW_RAID_MAP_EXT);
4640
4641 fusion->max_map_sz =
4642 max(fusion->old_map_sz, fusion->new_map_sz);
4643
4644 if (instance->supportmax256vd)
4645 fusion->current_map_sz = fusion->new_map_sz;
4646 else
4647 fusion->current_map_sz = fusion->old_map_sz;
4648 }
4649 /* irrespective of FW raid maps, driver raid map is constant */
4650 fusion->drv_map_sz = sizeof(struct MR_DRV_RAID_MAP_ALL);
4651 }
4652
4653 /**
4654 * megasas_get_controller_info - Returns FW's controller structure
4655 * @instance: Adapter soft state
4656 *
4657 * Issues an internal command (DCMD) to get the FW's controller structure.
4658 * This information is mainly used to find out the maximum IO transfer per
4659 * command supported by the FW.
4660 */
4661 int
4662 megasas_get_ctrl_info(struct megasas_instance *instance)
4663 {
4664 int ret = 0;
4665 struct megasas_cmd *cmd;
4666 struct megasas_dcmd_frame *dcmd;
4667 struct megasas_ctrl_info *ci;
4668 dma_addr_t ci_h = 0;
4669
4670 ci = instance->ctrl_info_buf;
4671 ci_h = instance->ctrl_info_buf_h;
4672
4673 cmd = megasas_get_cmd(instance);
4674
4675 if (!cmd) {
4676 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to get a free cmd\n");
4677 return -ENOMEM;
4678 }
4679
4680 dcmd = &cmd->frame->dcmd;
4681
4682 memset(ci, 0, sizeof(*ci));
4683 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
4684
4685 dcmd->cmd = MFI_CMD_DCMD;
4686 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
4687 dcmd->sge_count = 1;
4688 dcmd->flags = MFI_FRAME_DIR_READ;
4689 dcmd->timeout = 0;
4690 dcmd->pad_0 = 0;
4691 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct megasas_ctrl_info));
4692 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_GET_INFO);
4693 dcmd->mbox.b[0] = 1;
4694
4695 megasas_set_dma_settings(instance, dcmd, ci_h,
4696 sizeof(struct megasas_ctrl_info));
4697
4698 if ((instance->adapter_type != MFI_SERIES) &&
4699 !instance->mask_interrupts) {
4700 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS);
4701 } else {
4702 ret = megasas_issue_polled(instance, cmd);
4703 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
4704 }
4705
4706 switch (ret) {
4707 case DCMD_SUCCESS:
4708 /* Save required controller information in
4709 * CPU endianness format.
4710 */
4711 le32_to_cpus((u32 *)&ci->properties.OnOffProperties);
4712 le32_to_cpus((u32 *)&ci->adapterOperations2);
4713 le32_to_cpus((u32 *)&ci->adapterOperations3);
4714 le16_to_cpus((u16 *)&ci->adapter_operations4);
4715
4716 /* Update the latest Ext VD info.
4717 * From Init path, store current firmware details.
4718 * From OCR path, detect any firmware properties changes.
4719 * in case of Firmware upgrade without system reboot.
4720 */
4721 megasas_update_ext_vd_details(instance);
4722 instance->use_seqnum_jbod_fp =
4723 ci->adapterOperations3.useSeqNumJbodFP;
4724 instance->support_morethan256jbod =
4725 ci->adapter_operations4.support_pd_map_target_id;
4726 instance->support_nvme_passthru =
4727 ci->adapter_operations4.support_nvme_passthru;
4728
4729 /*Check whether controller is iMR or MR */
4730 instance->is_imr = (ci->memory_size ? 0 : 1);
4731 dev_info(&instance->pdev->dev,
4732 "controller type\t: %s(%dMB)\n",
4733 instance->is_imr ? "iMR" : "MR",
4734 le16_to_cpu(ci->memory_size));
4735
4736 instance->disableOnlineCtrlReset =
4737 ci->properties.OnOffProperties.disableOnlineCtrlReset;
4738 instance->secure_jbod_support =
4739 ci->adapterOperations3.supportSecurityonJBOD;
4740 dev_info(&instance->pdev->dev, "Online Controller Reset(OCR)\t: %s\n",
4741 instance->disableOnlineCtrlReset ? "Disabled" : "Enabled");
4742 dev_info(&instance->pdev->dev, "Secure JBOD support\t: %s\n",
4743 instance->secure_jbod_support ? "Yes" : "No");
4744 dev_info(&instance->pdev->dev, "NVMe passthru support\t: %s\n",
4745 instance->support_nvme_passthru ? "Yes" : "No");
4746 break;
4747
4748 case DCMD_TIMEOUT:
4749 switch (dcmd_timeout_ocr_possible(instance)) {
4750 case INITIATE_OCR:
4751 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
4752 megasas_reset_fusion(instance->host,
4753 MFI_IO_TIMEOUT_OCR);
4754 break;
4755 case KILL_ADAPTER:
4756 megaraid_sas_kill_hba(instance);
4757 break;
4758 case IGNORE_TIMEOUT:
4759 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n",
4760 __func__, __LINE__);
4761 break;
4762 }
4763 case DCMD_FAILED:
4764 megaraid_sas_kill_hba(instance);
4765 break;
4766
4767 }
4768
4769 megasas_return_cmd(instance, cmd);
4770
4771
4772 return ret;
4773 }
4774
4775 /*
4776 * megasas_set_crash_dump_params - Sends address of crash dump DMA buffer
4777 * to firmware
4778 *
4779 * @instance: Adapter soft state
4780 * @crash_buf_state - tell FW to turn ON/OFF crash dump feature
4781 MR_CRASH_BUF_TURN_OFF = 0
4782 MR_CRASH_BUF_TURN_ON = 1
4783 * @return 0 on success non-zero on failure.
4784 * Issues an internal command (DCMD) to set parameters for crash dump feature.
4785 * Driver will send address of crash dump DMA buffer and set mbox to tell FW
4786 * that driver supports crash dump feature. This DCMD will be sent only if
4787 * crash dump feature is supported by the FW.
4788 *
4789 */
4790 int megasas_set_crash_dump_params(struct megasas_instance *instance,
4791 u8 crash_buf_state)
4792 {
4793 int ret = 0;
4794 struct megasas_cmd *cmd;
4795 struct megasas_dcmd_frame *dcmd;
4796
4797 cmd = megasas_get_cmd(instance);
4798
4799 if (!cmd) {
4800 dev_err(&instance->pdev->dev, "Failed to get a free cmd\n");
4801 return -ENOMEM;
4802 }
4803
4804
4805 dcmd = &cmd->frame->dcmd;
4806
4807 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
4808 dcmd->mbox.b[0] = crash_buf_state;
4809 dcmd->cmd = MFI_CMD_DCMD;
4810 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
4811 dcmd->sge_count = 1;
4812 dcmd->flags = MFI_FRAME_DIR_NONE;
4813 dcmd->timeout = 0;
4814 dcmd->pad_0 = 0;
4815 dcmd->data_xfer_len = cpu_to_le32(CRASH_DMA_BUF_SIZE);
4816 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_SET_CRASH_DUMP_PARAMS);
4817
4818 megasas_set_dma_settings(instance, dcmd, instance->crash_dump_h,
4819 CRASH_DMA_BUF_SIZE);
4820
4821 if ((instance->adapter_type != MFI_SERIES) &&
4822 !instance->mask_interrupts)
4823 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS);
4824 else
4825 ret = megasas_issue_polled(instance, cmd);
4826
4827 if (ret == DCMD_TIMEOUT) {
4828 switch (dcmd_timeout_ocr_possible(instance)) {
4829 case INITIATE_OCR:
4830 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
4831 megasas_reset_fusion(instance->host,
4832 MFI_IO_TIMEOUT_OCR);
4833 break;
4834 case KILL_ADAPTER:
4835 megaraid_sas_kill_hba(instance);
4836 break;
4837 case IGNORE_TIMEOUT:
4838 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n",
4839 __func__, __LINE__);
4840 break;
4841 }
4842 } else
4843 megasas_return_cmd(instance, cmd);
4844
4845 return ret;
4846 }
4847
4848 /**
4849 * megasas_issue_init_mfi - Initializes the FW
4850 * @instance: Adapter soft state
4851 *
4852 * Issues the INIT MFI cmd
4853 */
4854 static int
4855 megasas_issue_init_mfi(struct megasas_instance *instance)
4856 {
4857 __le32 context;
4858 struct megasas_cmd *cmd;
4859 struct megasas_init_frame *init_frame;
4860 struct megasas_init_queue_info *initq_info;
4861 dma_addr_t init_frame_h;
4862 dma_addr_t initq_info_h;
4863
4864 /*
4865 * Prepare a init frame. Note the init frame points to queue info
4866 * structure. Each frame has SGL allocated after first 64 bytes. For
4867 * this frame - since we don't need any SGL - we use SGL's space as
4868 * queue info structure
4869 *
4870 * We will not get a NULL command below. We just created the pool.
4871 */
4872 cmd = megasas_get_cmd(instance);
4873
4874 init_frame = (struct megasas_init_frame *)cmd->frame;
4875 initq_info = (struct megasas_init_queue_info *)
4876 ((unsigned long)init_frame + 64);
4877
4878 init_frame_h = cmd->frame_phys_addr;
4879 initq_info_h = init_frame_h + 64;
4880
4881 context = init_frame->context;
4882 memset(init_frame, 0, MEGAMFI_FRAME_SIZE);
4883 memset(initq_info, 0, sizeof(struct megasas_init_queue_info));
4884 init_frame->context = context;
4885
4886 initq_info->reply_queue_entries = cpu_to_le32(instance->max_fw_cmds + 1);
4887 initq_info->reply_queue_start_phys_addr_lo = cpu_to_le32(instance->reply_queue_h);
4888
4889 initq_info->producer_index_phys_addr_lo = cpu_to_le32(instance->producer_h);
4890 initq_info->consumer_index_phys_addr_lo = cpu_to_le32(instance->consumer_h);
4891
4892 init_frame->cmd = MFI_CMD_INIT;
4893 init_frame->cmd_status = MFI_STAT_INVALID_STATUS;
4894 init_frame->queue_info_new_phys_addr_lo =
4895 cpu_to_le32(lower_32_bits(initq_info_h));
4896 init_frame->queue_info_new_phys_addr_hi =
4897 cpu_to_le32(upper_32_bits(initq_info_h));
4898
4899 init_frame->data_xfer_len = cpu_to_le32(sizeof(struct megasas_init_queue_info));
4900
4901 /*
4902 * disable the intr before firing the init frame to FW
4903 */
4904 instance->instancet->disable_intr(instance);
4905
4906 /*
4907 * Issue the init frame in polled mode
4908 */
4909
4910 if (megasas_issue_polled(instance, cmd)) {
4911 dev_err(&instance->pdev->dev, "Failed to init firmware\n");
4912 megasas_return_cmd(instance, cmd);
4913 goto fail_fw_init;
4914 }
4915
4916 megasas_return_cmd(instance, cmd);
4917
4918 return 0;
4919
4920 fail_fw_init:
4921 return -EINVAL;
4922 }
4923
4924 static u32
4925 megasas_init_adapter_mfi(struct megasas_instance *instance)
4926 {
4927 struct megasas_register_set __iomem *reg_set;
4928 u32 context_sz;
4929 u32 reply_q_sz;
4930
4931 reg_set = instance->reg_set;
4932
4933 /*
4934 * Get various operational parameters from status register
4935 */
4936 instance->max_fw_cmds = instance->instancet->read_fw_status_reg(reg_set) & 0x00FFFF;
4937 /*
4938 * Reduce the max supported cmds by 1. This is to ensure that the
4939 * reply_q_sz (1 more than the max cmd that driver may send)
4940 * does not exceed max cmds that the FW can support
4941 */
4942 instance->max_fw_cmds = instance->max_fw_cmds-1;
4943 instance->max_mfi_cmds = instance->max_fw_cmds;
4944 instance->max_num_sge = (instance->instancet->read_fw_status_reg(reg_set) & 0xFF0000) >>
4945 0x10;
4946 /*
4947 * For MFI skinny adapters, MEGASAS_SKINNY_INT_CMDS commands
4948 * are reserved for IOCTL + driver's internal DCMDs.
4949 */
4950 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
4951 (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY)) {
4952 instance->max_scsi_cmds = (instance->max_fw_cmds -
4953 MEGASAS_SKINNY_INT_CMDS);
4954 sema_init(&instance->ioctl_sem, MEGASAS_SKINNY_INT_CMDS);
4955 } else {
4956 instance->max_scsi_cmds = (instance->max_fw_cmds -
4957 MEGASAS_INT_CMDS);
4958 sema_init(&instance->ioctl_sem, (MEGASAS_MFI_IOCTL_CMDS));
4959 }
4960
4961 instance->cur_can_queue = instance->max_scsi_cmds;
4962 /*
4963 * Create a pool of commands
4964 */
4965 if (megasas_alloc_cmds(instance))
4966 goto fail_alloc_cmds;
4967
4968 /*
4969 * Allocate memory for reply queue. Length of reply queue should
4970 * be _one_ more than the maximum commands handled by the firmware.
4971 *
4972 * Note: When FW completes commands, it places corresponding contex
4973 * values in this circular reply queue. This circular queue is a fairly
4974 * typical producer-consumer queue. FW is the producer (of completed
4975 * commands) and the driver is the consumer.
4976 */
4977 context_sz = sizeof(u32);
4978 reply_q_sz = context_sz * (instance->max_fw_cmds + 1);
4979
4980 instance->reply_queue = pci_alloc_consistent(instance->pdev,
4981 reply_q_sz,
4982 &instance->reply_queue_h);
4983
4984 if (!instance->reply_queue) {
4985 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Out of DMA mem for reply queue\n");
4986 goto fail_reply_queue;
4987 }
4988
4989 if (megasas_issue_init_mfi(instance))
4990 goto fail_fw_init;
4991
4992 if (megasas_get_ctrl_info(instance)) {
4993 dev_err(&instance->pdev->dev, "(%d): Could get controller info "
4994 "Fail from %s %d\n", instance->unique_id,
4995 __func__, __LINE__);
4996 goto fail_fw_init;
4997 }
4998
4999 instance->fw_support_ieee = 0;
5000 instance->fw_support_ieee =
5001 (instance->instancet->read_fw_status_reg(reg_set) &
5002 0x04000000);
5003
5004 dev_notice(&instance->pdev->dev, "megasas_init_mfi: fw_support_ieee=%d",
5005 instance->fw_support_ieee);
5006
5007 if (instance->fw_support_ieee)
5008 instance->flag_ieee = 1;
5009
5010 return 0;
5011
5012 fail_fw_init:
5013
5014 pci_free_consistent(instance->pdev, reply_q_sz,
5015 instance->reply_queue, instance->reply_queue_h);
5016 fail_reply_queue:
5017 megasas_free_cmds(instance);
5018
5019 fail_alloc_cmds:
5020 return 1;
5021 }
5022
5023 /*
5024 * megasas_setup_irqs_ioapic - register legacy interrupts.
5025 * @instance: Adapter soft state
5026 *
5027 * Do not enable interrupt, only setup ISRs.
5028 *
5029 * Return 0 on success.
5030 */
5031 static int
5032 megasas_setup_irqs_ioapic(struct megasas_instance *instance)
5033 {
5034 struct pci_dev *pdev;
5035
5036 pdev = instance->pdev;
5037 instance->irq_context[0].instance = instance;
5038 instance->irq_context[0].MSIxIndex = 0;
5039 if (request_irq(pci_irq_vector(pdev, 0),
5040 instance->instancet->service_isr, IRQF_SHARED,
5041 "megasas", &instance->irq_context[0])) {
5042 dev_err(&instance->pdev->dev,
5043 "Failed to register IRQ from %s %d\n",
5044 __func__, __LINE__);
5045 return -1;
5046 }
5047 return 0;
5048 }
5049
5050 /**
5051 * megasas_setup_irqs_msix - register MSI-x interrupts.
5052 * @instance: Adapter soft state
5053 * @is_probe: Driver probe check
5054 *
5055 * Do not enable interrupt, only setup ISRs.
5056 *
5057 * Return 0 on success.
5058 */
5059 static int
5060 megasas_setup_irqs_msix(struct megasas_instance *instance, u8 is_probe)
5061 {
5062 int i, j;
5063 struct pci_dev *pdev;
5064
5065 pdev = instance->pdev;
5066
5067 /* Try MSI-x */
5068 for (i = 0; i < instance->msix_vectors; i++) {
5069 instance->irq_context[i].instance = instance;
5070 instance->irq_context[i].MSIxIndex = i;
5071 if (request_irq(pci_irq_vector(pdev, i),
5072 instance->instancet->service_isr, 0, "megasas",
5073 &instance->irq_context[i])) {
5074 dev_err(&instance->pdev->dev,
5075 "Failed to register IRQ for vector %d.\n", i);
5076 for (j = 0; j < i; j++)
5077 free_irq(pci_irq_vector(pdev, j),
5078 &instance->irq_context[j]);
5079 /* Retry irq register for IO_APIC*/
5080 instance->msix_vectors = 0;
5081 if (is_probe) {
5082 pci_free_irq_vectors(instance->pdev);
5083 return megasas_setup_irqs_ioapic(instance);
5084 } else {
5085 return -1;
5086 }
5087 }
5088 }
5089 return 0;
5090 }
5091
5092 /*
5093 * megasas_destroy_irqs- unregister interrupts.
5094 * @instance: Adapter soft state
5095 * return: void
5096 */
5097 static void
5098 megasas_destroy_irqs(struct megasas_instance *instance) {
5099
5100 int i;
5101
5102 if (instance->msix_vectors)
5103 for (i = 0; i < instance->msix_vectors; i++) {
5104 free_irq(pci_irq_vector(instance->pdev, i),
5105 &instance->irq_context[i]);
5106 }
5107 else
5108 free_irq(pci_irq_vector(instance->pdev, 0),
5109 &instance->irq_context[0]);
5110 }
5111
5112 /**
5113 * megasas_setup_jbod_map - setup jbod map for FP seq_number.
5114 * @instance: Adapter soft state
5115 * @is_probe: Driver probe check
5116 *
5117 * Return 0 on success.
5118 */
5119 void
5120 megasas_setup_jbod_map(struct megasas_instance *instance)
5121 {
5122 int i;
5123 struct fusion_context *fusion = instance->ctrl_context;
5124 u32 pd_seq_map_sz;
5125
5126 pd_seq_map_sz = sizeof(struct MR_PD_CFG_SEQ_NUM_SYNC) +
5127 (sizeof(struct MR_PD_CFG_SEQ) * (MAX_PHYSICAL_DEVICES - 1));
5128
5129 if (reset_devices || !fusion ||
5130 !instance->ctrl_info_buf->adapterOperations3.useSeqNumJbodFP) {
5131 dev_info(&instance->pdev->dev,
5132 "Jbod map is not supported %s %d\n",
5133 __func__, __LINE__);
5134 instance->use_seqnum_jbod_fp = false;
5135 return;
5136 }
5137
5138 if (fusion->pd_seq_sync[0])
5139 goto skip_alloc;
5140
5141 for (i = 0; i < JBOD_MAPS_COUNT; i++) {
5142 fusion->pd_seq_sync[i] = dma_alloc_coherent
5143 (&instance->pdev->dev, pd_seq_map_sz,
5144 &fusion->pd_seq_phys[i], GFP_KERNEL);
5145 if (!fusion->pd_seq_sync[i]) {
5146 dev_err(&instance->pdev->dev,
5147 "Failed to allocate memory from %s %d\n",
5148 __func__, __LINE__);
5149 if (i == 1) {
5150 dma_free_coherent(&instance->pdev->dev,
5151 pd_seq_map_sz, fusion->pd_seq_sync[0],
5152 fusion->pd_seq_phys[0]);
5153 fusion->pd_seq_sync[0] = NULL;
5154 }
5155 instance->use_seqnum_jbod_fp = false;
5156 return;
5157 }
5158 }
5159
5160 skip_alloc:
5161 if (!megasas_sync_pd_seq_num(instance, false) &&
5162 !megasas_sync_pd_seq_num(instance, true))
5163 instance->use_seqnum_jbod_fp = true;
5164 else
5165 instance->use_seqnum_jbod_fp = false;
5166 }
5167
5168 /**
5169 * megasas_init_fw - Initializes the FW
5170 * @instance: Adapter soft state
5171 *
5172 * This is the main function for initializing firmware
5173 */
5174
5175 static int megasas_init_fw(struct megasas_instance *instance)
5176 {
5177 u32 max_sectors_1;
5178 u32 max_sectors_2, tmp_sectors, msix_enable;
5179 u32 scratch_pad_2, scratch_pad_3, scratch_pad_4;
5180 resource_size_t base_addr;
5181 struct megasas_register_set __iomem *reg_set;
5182 struct megasas_ctrl_info *ctrl_info = NULL;
5183 unsigned long bar_list;
5184 int i, j, loop, fw_msix_count = 0;
5185 struct IOV_111 *iovPtr;
5186 struct fusion_context *fusion;
5187
5188 fusion = instance->ctrl_context;
5189
5190 /* Find first memory bar */
5191 bar_list = pci_select_bars(instance->pdev, IORESOURCE_MEM);
5192 instance->bar = find_first_bit(&bar_list, BITS_PER_LONG);
5193 if (pci_request_selected_regions(instance->pdev, 1<<instance->bar,
5194 "megasas: LSI")) {
5195 dev_printk(KERN_DEBUG, &instance->pdev->dev, "IO memory region busy!\n");
5196 return -EBUSY;
5197 }
5198
5199 base_addr = pci_resource_start(instance->pdev, instance->bar);
5200 instance->reg_set = ioremap_nocache(base_addr, 8192);
5201
5202 if (!instance->reg_set) {
5203 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to map IO mem\n");
5204 goto fail_ioremap;
5205 }
5206
5207 reg_set = instance->reg_set;
5208
5209 if (instance->adapter_type != MFI_SERIES)
5210 instance->instancet = &megasas_instance_template_fusion;
5211 else {
5212 switch (instance->pdev->device) {
5213 case PCI_DEVICE_ID_LSI_SAS1078R:
5214 case PCI_DEVICE_ID_LSI_SAS1078DE:
5215 instance->instancet = &megasas_instance_template_ppc;
5216 break;
5217 case PCI_DEVICE_ID_LSI_SAS1078GEN2:
5218 case PCI_DEVICE_ID_LSI_SAS0079GEN2:
5219 instance->instancet = &megasas_instance_template_gen2;
5220 break;
5221 case PCI_DEVICE_ID_LSI_SAS0073SKINNY:
5222 case PCI_DEVICE_ID_LSI_SAS0071SKINNY:
5223 instance->instancet = &megasas_instance_template_skinny;
5224 break;
5225 case PCI_DEVICE_ID_LSI_SAS1064R:
5226 case PCI_DEVICE_ID_DELL_PERC5:
5227 default:
5228 instance->instancet = &megasas_instance_template_xscale;
5229 instance->pd_list_not_supported = 1;
5230 break;
5231 }
5232 }
5233
5234 if (megasas_transition_to_ready(instance, 0)) {
5235 atomic_set(&instance->fw_reset_no_pci_access, 1);
5236 instance->instancet->adp_reset
5237 (instance, instance->reg_set);
5238 atomic_set(&instance->fw_reset_no_pci_access, 0);
5239 dev_info(&instance->pdev->dev,
5240 "FW restarted successfully from %s!\n",
5241 __func__);
5242
5243 /*waitting for about 30 second before retry*/
5244 ssleep(30);
5245
5246 if (megasas_transition_to_ready(instance, 0))
5247 goto fail_ready_state;
5248 }
5249
5250 megasas_init_ctrl_params(instance);
5251
5252 if (megasas_set_dma_mask(instance))
5253 goto fail_ready_state;
5254
5255 if (megasas_alloc_ctrl_mem(instance))
5256 goto fail_alloc_dma_buf;
5257
5258 if (megasas_alloc_ctrl_dma_buffers(instance))
5259 goto fail_alloc_dma_buf;
5260
5261 fusion = instance->ctrl_context;
5262
5263 if (instance->adapter_type == VENTURA_SERIES) {
5264 scratch_pad_3 =
5265 readl(&instance->reg_set->outbound_scratch_pad_3);
5266 instance->max_raid_mapsize = ((scratch_pad_3 >>
5267 MR_MAX_RAID_MAP_SIZE_OFFSET_SHIFT) &
5268 MR_MAX_RAID_MAP_SIZE_MASK);
5269 }
5270
5271 /* Check if MSI-X is supported while in ready state */
5272 msix_enable = (instance->instancet->read_fw_status_reg(reg_set) &
5273 0x4000000) >> 0x1a;
5274 if (msix_enable && !msix_disable) {
5275 int irq_flags = PCI_IRQ_MSIX;
5276
5277 scratch_pad_2 = readl
5278 (&instance->reg_set->outbound_scratch_pad_2);
5279 /* Check max MSI-X vectors */
5280 if (fusion) {
5281 if (instance->adapter_type == THUNDERBOLT_SERIES) {
5282 /* Thunderbolt Series*/
5283 instance->msix_vectors = (scratch_pad_2
5284 & MR_MAX_REPLY_QUEUES_OFFSET) + 1;
5285 fw_msix_count = instance->msix_vectors;
5286 } else { /* Invader series supports more than 8 MSI-x vectors*/
5287 instance->msix_vectors = ((scratch_pad_2
5288 & MR_MAX_REPLY_QUEUES_EXT_OFFSET)
5289 >> MR_MAX_REPLY_QUEUES_EXT_OFFSET_SHIFT) + 1;
5290 if (instance->msix_vectors > 16)
5291 instance->msix_combined = true;
5292
5293 if (rdpq_enable)
5294 instance->is_rdpq = (scratch_pad_2 & MR_RDPQ_MODE_OFFSET) ?
5295 1 : 0;
5296 fw_msix_count = instance->msix_vectors;
5297 /* Save 1-15 reply post index address to local memory
5298 * Index 0 is already saved from reg offset
5299 * MPI2_REPLY_POST_HOST_INDEX_OFFSET
5300 */
5301 for (loop = 1; loop < MR_MAX_MSIX_REG_ARRAY; loop++) {
5302 instance->reply_post_host_index_addr[loop] =
5303 (u32 __iomem *)
5304 ((u8 __iomem *)instance->reg_set +
5305 MPI2_SUP_REPLY_POST_HOST_INDEX_OFFSET
5306 + (loop * 0x10));
5307 }
5308 }
5309 if (msix_vectors)
5310 instance->msix_vectors = min(msix_vectors,
5311 instance->msix_vectors);
5312 } else /* MFI adapters */
5313 instance->msix_vectors = 1;
5314 /* Don't bother allocating more MSI-X vectors than cpus */
5315 instance->msix_vectors = min(instance->msix_vectors,
5316 (unsigned int)num_online_cpus());
5317 if (smp_affinity_enable)
5318 irq_flags |= PCI_IRQ_AFFINITY;
5319 i = pci_alloc_irq_vectors(instance->pdev, 1,
5320 instance->msix_vectors, irq_flags);
5321 if (i > 0)
5322 instance->msix_vectors = i;
5323 else
5324 instance->msix_vectors = 0;
5325 }
5326 /*
5327 * MSI-X host index 0 is common for all adapter.
5328 * It is used for all MPT based Adapters.
5329 */
5330 if (instance->msix_combined) {
5331 instance->reply_post_host_index_addr[0] =
5332 (u32 *)((u8 *)instance->reg_set +
5333 MPI2_SUP_REPLY_POST_HOST_INDEX_OFFSET);
5334 } else {
5335 instance->reply_post_host_index_addr[0] =
5336 (u32 *)((u8 *)instance->reg_set +
5337 MPI2_REPLY_POST_HOST_INDEX_OFFSET);
5338 }
5339
5340 if (!instance->msix_vectors) {
5341 i = pci_alloc_irq_vectors(instance->pdev, 1, 1, PCI_IRQ_LEGACY);
5342 if (i < 0)
5343 goto fail_setup_irqs;
5344 }
5345
5346 dev_info(&instance->pdev->dev,
5347 "firmware supports msix\t: (%d)", fw_msix_count);
5348 dev_info(&instance->pdev->dev,
5349 "current msix/online cpus\t: (%d/%d)\n",
5350 instance->msix_vectors, (unsigned int)num_online_cpus());
5351 dev_info(&instance->pdev->dev,
5352 "RDPQ mode\t: (%s)\n", instance->is_rdpq ? "enabled" : "disabled");
5353
5354 tasklet_init(&instance->isr_tasklet, instance->instancet->tasklet,
5355 (unsigned long)instance);
5356
5357 /*
5358 * Below are default value for legacy Firmware.
5359 * non-fusion based controllers
5360 */
5361 instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES;
5362 instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES;
5363 /* Get operational params, sge flags, send init cmd to controller */
5364 if (instance->instancet->init_adapter(instance))
5365 goto fail_init_adapter;
5366
5367 if (instance->adapter_type == VENTURA_SERIES) {
5368 scratch_pad_4 =
5369 readl(&instance->reg_set->outbound_scratch_pad_4);
5370 if ((scratch_pad_4 & MR_NVME_PAGE_SIZE_MASK) >=
5371 MR_DEFAULT_NVME_PAGE_SHIFT)
5372 instance->nvme_page_size =
5373 (1 << (scratch_pad_4 & MR_NVME_PAGE_SIZE_MASK));
5374
5375 dev_info(&instance->pdev->dev,
5376 "NVME page size\t: (%d)\n", instance->nvme_page_size);
5377 }
5378
5379 if (instance->msix_vectors ?
5380 megasas_setup_irqs_msix(instance, 1) :
5381 megasas_setup_irqs_ioapic(instance))
5382 goto fail_init_adapter;
5383
5384 instance->instancet->enable_intr(instance);
5385
5386 dev_info(&instance->pdev->dev, "INIT adapter done\n");
5387
5388 megasas_setup_jbod_map(instance);
5389
5390 /** for passthrough
5391 * the following function will get the PD LIST.
5392 */
5393 memset(instance->pd_list, 0,
5394 (MEGASAS_MAX_PD * sizeof(struct megasas_pd_list)));
5395 if (megasas_get_pd_list(instance) < 0) {
5396 dev_err(&instance->pdev->dev, "failed to get PD list\n");
5397 goto fail_get_ld_pd_list;
5398 }
5399
5400 memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS);
5401
5402 /* stream detection initialization */
5403 if (instance->adapter_type == VENTURA_SERIES) {
5404 fusion->stream_detect_by_ld =
5405 kzalloc(sizeof(struct LD_STREAM_DETECT *)
5406 * MAX_LOGICAL_DRIVES_EXT,
5407 GFP_KERNEL);
5408 if (!fusion->stream_detect_by_ld) {
5409 dev_err(&instance->pdev->dev,
5410 "unable to allocate stream detection for pool of LDs\n");
5411 goto fail_get_ld_pd_list;
5412 }
5413 for (i = 0; i < MAX_LOGICAL_DRIVES_EXT; ++i) {
5414 fusion->stream_detect_by_ld[i] =
5415 kzalloc(sizeof(struct LD_STREAM_DETECT),
5416 GFP_KERNEL);
5417 if (!fusion->stream_detect_by_ld[i]) {
5418 dev_err(&instance->pdev->dev,
5419 "unable to allocate stream detect by LD\n ");
5420 for (j = 0; j < i; ++j)
5421 kfree(fusion->stream_detect_by_ld[j]);
5422 kfree(fusion->stream_detect_by_ld);
5423 fusion->stream_detect_by_ld = NULL;
5424 goto fail_get_ld_pd_list;
5425 }
5426 fusion->stream_detect_by_ld[i]->mru_bit_map
5427 = MR_STREAM_BITMAP;
5428 }
5429 }
5430
5431 if (megasas_ld_list_query(instance,
5432 MR_LD_QUERY_TYPE_EXPOSED_TO_HOST))
5433 goto fail_get_ld_pd_list;
5434
5435 /*
5436 * Compute the max allowed sectors per IO: The controller info has two
5437 * limits on max sectors. Driver should use the minimum of these two.
5438 *
5439 * 1 << stripe_sz_ops.min = max sectors per strip
5440 *
5441 * Note that older firmwares ( < FW ver 30) didn't report information
5442 * to calculate max_sectors_1. So the number ended up as zero always.
5443 */
5444 tmp_sectors = 0;
5445 ctrl_info = instance->ctrl_info_buf;
5446
5447 max_sectors_1 = (1 << ctrl_info->stripe_sz_ops.min) *
5448 le16_to_cpu(ctrl_info->max_strips_per_io);
5449 max_sectors_2 = le32_to_cpu(ctrl_info->max_request_size);
5450
5451 tmp_sectors = min_t(u32, max_sectors_1, max_sectors_2);
5452
5453 instance->peerIsPresent = ctrl_info->cluster.peerIsPresent;
5454 instance->passive = ctrl_info->cluster.passive;
5455 memcpy(instance->clusterId, ctrl_info->clusterId, sizeof(instance->clusterId));
5456 instance->UnevenSpanSupport =
5457 ctrl_info->adapterOperations2.supportUnevenSpans;
5458 if (instance->UnevenSpanSupport) {
5459 struct fusion_context *fusion = instance->ctrl_context;
5460 if (MR_ValidateMapInfo(instance, instance->map_id))
5461 fusion->fast_path_io = 1;
5462 else
5463 fusion->fast_path_io = 0;
5464
5465 }
5466 if (ctrl_info->host_interface.SRIOV) {
5467 instance->requestorId = ctrl_info->iov.requestorId;
5468 if (instance->pdev->device == PCI_DEVICE_ID_LSI_PLASMA) {
5469 if (!ctrl_info->adapterOperations2.activePassive)
5470 instance->PlasmaFW111 = 1;
5471
5472 dev_info(&instance->pdev->dev, "SR-IOV: firmware type: %s\n",
5473 instance->PlasmaFW111 ? "1.11" : "new");
5474
5475 if (instance->PlasmaFW111) {
5476 iovPtr = (struct IOV_111 *)
5477 ((unsigned char *)ctrl_info + IOV_111_OFFSET);
5478 instance->requestorId = iovPtr->requestorId;
5479 }
5480 }
5481 dev_info(&instance->pdev->dev, "SRIOV: VF requestorId %d\n",
5482 instance->requestorId);
5483 }
5484
5485 instance->crash_dump_fw_support =
5486 ctrl_info->adapterOperations3.supportCrashDump;
5487 instance->crash_dump_drv_support =
5488 (instance->crash_dump_fw_support &&
5489 instance->crash_dump_buf);
5490 if (instance->crash_dump_drv_support)
5491 megasas_set_crash_dump_params(instance,
5492 MR_CRASH_BUF_TURN_OFF);
5493
5494 else {
5495 if (instance->crash_dump_buf)
5496 pci_free_consistent(instance->pdev,
5497 CRASH_DMA_BUF_SIZE,
5498 instance->crash_dump_buf,
5499 instance->crash_dump_h);
5500 instance->crash_dump_buf = NULL;
5501 }
5502
5503
5504 dev_info(&instance->pdev->dev,
5505 "pci id\t\t: (0x%04x)/(0x%04x)/(0x%04x)/(0x%04x)\n",
5506 le16_to_cpu(ctrl_info->pci.vendor_id),
5507 le16_to_cpu(ctrl_info->pci.device_id),
5508 le16_to_cpu(ctrl_info->pci.sub_vendor_id),
5509 le16_to_cpu(ctrl_info->pci.sub_device_id));
5510 dev_info(&instance->pdev->dev, "unevenspan support : %s\n",
5511 instance->UnevenSpanSupport ? "yes" : "no");
5512 dev_info(&instance->pdev->dev, "firmware crash dump : %s\n",
5513 instance->crash_dump_drv_support ? "yes" : "no");
5514 dev_info(&instance->pdev->dev, "jbod sync map : %s\n",
5515 instance->use_seqnum_jbod_fp ? "yes" : "no");
5516
5517
5518 instance->max_sectors_per_req = instance->max_num_sge *
5519 SGE_BUFFER_SIZE / 512;
5520 if (tmp_sectors && (instance->max_sectors_per_req > tmp_sectors))
5521 instance->max_sectors_per_req = tmp_sectors;
5522
5523 /* Check for valid throttlequeuedepth module parameter */
5524 if (throttlequeuedepth &&
5525 throttlequeuedepth <= instance->max_scsi_cmds)
5526 instance->throttlequeuedepth = throttlequeuedepth;
5527 else
5528 instance->throttlequeuedepth =
5529 MEGASAS_THROTTLE_QUEUE_DEPTH;
5530
5531 if ((resetwaittime < 1) ||
5532 (resetwaittime > MEGASAS_RESET_WAIT_TIME))
5533 resetwaittime = MEGASAS_RESET_WAIT_TIME;
5534
5535 if ((scmd_timeout < 10) || (scmd_timeout > MEGASAS_DEFAULT_CMD_TIMEOUT))
5536 scmd_timeout = MEGASAS_DEFAULT_CMD_TIMEOUT;
5537
5538 /* Launch SR-IOV heartbeat timer */
5539 if (instance->requestorId) {
5540 if (!megasas_sriov_start_heartbeat(instance, 1))
5541 megasas_start_timer(instance);
5542 else
5543 instance->skip_heartbeat_timer_del = 1;
5544 }
5545
5546 return 0;
5547
5548 fail_get_ld_pd_list:
5549 instance->instancet->disable_intr(instance);
5550 fail_init_adapter:
5551 megasas_destroy_irqs(instance);
5552 fail_setup_irqs:
5553 if (instance->msix_vectors)
5554 pci_free_irq_vectors(instance->pdev);
5555 instance->msix_vectors = 0;
5556 fail_alloc_dma_buf:
5557 megasas_free_ctrl_dma_buffers(instance);
5558 megasas_free_ctrl_mem(instance);
5559 fail_ready_state:
5560 iounmap(instance->reg_set);
5561
5562 fail_ioremap:
5563 pci_release_selected_regions(instance->pdev, 1<<instance->bar);
5564
5565 dev_err(&instance->pdev->dev, "Failed from %s %d\n",
5566 __func__, __LINE__);
5567 return -EINVAL;
5568 }
5569
5570 /**
5571 * megasas_release_mfi - Reverses the FW initialization
5572 * @instance: Adapter soft state
5573 */
5574 static void megasas_release_mfi(struct megasas_instance *instance)
5575 {
5576 u32 reply_q_sz = sizeof(u32) *(instance->max_mfi_cmds + 1);
5577
5578 if (instance->reply_queue)
5579 pci_free_consistent(instance->pdev, reply_q_sz,
5580 instance->reply_queue, instance->reply_queue_h);
5581
5582 megasas_free_cmds(instance);
5583
5584 iounmap(instance->reg_set);
5585
5586 pci_release_selected_regions(instance->pdev, 1<<instance->bar);
5587 }
5588
5589 /**
5590 * megasas_get_seq_num - Gets latest event sequence numbers
5591 * @instance: Adapter soft state
5592 * @eli: FW event log sequence numbers information
5593 *
5594 * FW maintains a log of all events in a non-volatile area. Upper layers would
5595 * usually find out the latest sequence number of the events, the seq number at
5596 * the boot etc. They would "read" all the events below the latest seq number
5597 * by issuing a direct fw cmd (DCMD). For the future events (beyond latest seq
5598 * number), they would subsribe to AEN (asynchronous event notification) and
5599 * wait for the events to happen.
5600 */
5601 static int
5602 megasas_get_seq_num(struct megasas_instance *instance,
5603 struct megasas_evt_log_info *eli)
5604 {
5605 struct megasas_cmd *cmd;
5606 struct megasas_dcmd_frame *dcmd;
5607 struct megasas_evt_log_info *el_info;
5608 dma_addr_t el_info_h = 0;
5609 int ret;
5610
5611 cmd = megasas_get_cmd(instance);
5612
5613 if (!cmd) {
5614 return -ENOMEM;
5615 }
5616
5617 dcmd = &cmd->frame->dcmd;
5618 el_info = pci_alloc_consistent(instance->pdev,
5619 sizeof(struct megasas_evt_log_info),
5620 &el_info_h);
5621
5622 if (!el_info) {
5623 megasas_return_cmd(instance, cmd);
5624 return -ENOMEM;
5625 }
5626
5627 memset(el_info, 0, sizeof(*el_info));
5628 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
5629
5630 dcmd->cmd = MFI_CMD_DCMD;
5631 dcmd->cmd_status = 0x0;
5632 dcmd->sge_count = 1;
5633 dcmd->flags = MFI_FRAME_DIR_READ;
5634 dcmd->timeout = 0;
5635 dcmd->pad_0 = 0;
5636 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct megasas_evt_log_info));
5637 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_EVENT_GET_INFO);
5638
5639 megasas_set_dma_settings(instance, dcmd, el_info_h,
5640 sizeof(struct megasas_evt_log_info));
5641
5642 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS);
5643 if (ret != DCMD_SUCCESS) {
5644 dev_err(&instance->pdev->dev, "Failed from %s %d\n",
5645 __func__, __LINE__);
5646 goto dcmd_failed;
5647 }
5648
5649 /*
5650 * Copy the data back into callers buffer
5651 */
5652 eli->newest_seq_num = el_info->newest_seq_num;
5653 eli->oldest_seq_num = el_info->oldest_seq_num;
5654 eli->clear_seq_num = el_info->clear_seq_num;
5655 eli->shutdown_seq_num = el_info->shutdown_seq_num;
5656 eli->boot_seq_num = el_info->boot_seq_num;
5657
5658 dcmd_failed:
5659 pci_free_consistent(instance->pdev, sizeof(struct megasas_evt_log_info),
5660 el_info, el_info_h);
5661
5662 megasas_return_cmd(instance, cmd);
5663
5664 return ret;
5665 }
5666
5667 /**
5668 * megasas_register_aen - Registers for asynchronous event notification
5669 * @instance: Adapter soft state
5670 * @seq_num: The starting sequence number
5671 * @class_locale: Class of the event
5672 *
5673 * This function subscribes for AEN for events beyond the @seq_num. It requests
5674 * to be notified if and only if the event is of type @class_locale
5675 */
5676 static int
5677 megasas_register_aen(struct megasas_instance *instance, u32 seq_num,
5678 u32 class_locale_word)
5679 {
5680 int ret_val;
5681 struct megasas_cmd *cmd;
5682 struct megasas_dcmd_frame *dcmd;
5683 union megasas_evt_class_locale curr_aen;
5684 union megasas_evt_class_locale prev_aen;
5685
5686 /*
5687 * If there an AEN pending already (aen_cmd), check if the
5688 * class_locale of that pending AEN is inclusive of the new
5689 * AEN request we currently have. If it is, then we don't have
5690 * to do anything. In other words, whichever events the current
5691 * AEN request is subscribing to, have already been subscribed
5692 * to.
5693 *
5694 * If the old_cmd is _not_ inclusive, then we have to abort
5695 * that command, form a class_locale that is superset of both
5696 * old and current and re-issue to the FW
5697 */
5698
5699 curr_aen.word = class_locale_word;
5700
5701 if (instance->aen_cmd) {
5702
5703 prev_aen.word =
5704 le32_to_cpu(instance->aen_cmd->frame->dcmd.mbox.w[1]);
5705
5706 if ((curr_aen.members.class < MFI_EVT_CLASS_DEBUG) ||
5707 (curr_aen.members.class > MFI_EVT_CLASS_DEAD)) {
5708 dev_info(&instance->pdev->dev,
5709 "%s %d out of range class %d send by application\n",
5710 __func__, __LINE__, curr_aen.members.class);
5711 return 0;
5712 }
5713
5714 /*
5715 * A class whose enum value is smaller is inclusive of all
5716 * higher values. If a PROGRESS (= -1) was previously
5717 * registered, then a new registration requests for higher
5718 * classes need not be sent to FW. They are automatically
5719 * included.
5720 *
5721 * Locale numbers don't have such hierarchy. They are bitmap
5722 * values
5723 */
5724 if ((prev_aen.members.class <= curr_aen.members.class) &&
5725 !((prev_aen.members.locale & curr_aen.members.locale) ^
5726 curr_aen.members.locale)) {
5727 /*
5728 * Previously issued event registration includes
5729 * current request. Nothing to do.
5730 */
5731 return 0;
5732 } else {
5733 curr_aen.members.locale |= prev_aen.members.locale;
5734
5735 if (prev_aen.members.class < curr_aen.members.class)
5736 curr_aen.members.class = prev_aen.members.class;
5737
5738 instance->aen_cmd->abort_aen = 1;
5739 ret_val = megasas_issue_blocked_abort_cmd(instance,
5740 instance->
5741 aen_cmd, 30);
5742
5743 if (ret_val) {
5744 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to abort "
5745 "previous AEN command\n");
5746 return ret_val;
5747 }
5748 }
5749 }
5750
5751 cmd = megasas_get_cmd(instance);
5752
5753 if (!cmd)
5754 return -ENOMEM;
5755
5756 dcmd = &cmd->frame->dcmd;
5757
5758 memset(instance->evt_detail, 0, sizeof(struct megasas_evt_detail));
5759
5760 /*
5761 * Prepare DCMD for aen registration
5762 */
5763 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
5764
5765 dcmd->cmd = MFI_CMD_DCMD;
5766 dcmd->cmd_status = 0x0;
5767 dcmd->sge_count = 1;
5768 dcmd->flags = MFI_FRAME_DIR_READ;
5769 dcmd->timeout = 0;
5770 dcmd->pad_0 = 0;
5771 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct megasas_evt_detail));
5772 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_EVENT_WAIT);
5773 dcmd->mbox.w[0] = cpu_to_le32(seq_num);
5774 instance->last_seq_num = seq_num;
5775 dcmd->mbox.w[1] = cpu_to_le32(curr_aen.word);
5776
5777 megasas_set_dma_settings(instance, dcmd, instance->evt_detail_h,
5778 sizeof(struct megasas_evt_detail));
5779
5780 if (instance->aen_cmd != NULL) {
5781 megasas_return_cmd(instance, cmd);
5782 return 0;
5783 }
5784
5785 /*
5786 * Store reference to the cmd used to register for AEN. When an
5787 * application wants us to register for AEN, we have to abort this
5788 * cmd and re-register with a new EVENT LOCALE supplied by that app
5789 */
5790 instance->aen_cmd = cmd;
5791
5792 /*
5793 * Issue the aen registration frame
5794 */
5795 instance->instancet->issue_dcmd(instance, cmd);
5796
5797 return 0;
5798 }
5799
5800 /* megasas_get_target_prop - Send DCMD with below details to firmware.
5801 *
5802 * This DCMD will fetch few properties of LD/system PD defined
5803 * in MR_TARGET_DEV_PROPERTIES. eg. Queue Depth, MDTS value.
5804 *
5805 * DCMD send by drivers whenever new target is added to the OS.
5806 *
5807 * dcmd.opcode - MR_DCMD_DEV_GET_TARGET_PROP
5808 * dcmd.mbox.b[0] - DCMD is to be fired for LD or system PD.
5809 * 0 = system PD, 1 = LD.
5810 * dcmd.mbox.s[1] - TargetID for LD/system PD.
5811 * dcmd.sge IN - Pointer to return MR_TARGET_DEV_PROPERTIES.
5812 *
5813 * @instance: Adapter soft state
5814 * @sdev: OS provided scsi device
5815 *
5816 * Returns 0 on success non-zero on failure.
5817 */
5818 static int
5819 megasas_get_target_prop(struct megasas_instance *instance,
5820 struct scsi_device *sdev)
5821 {
5822 int ret;
5823 struct megasas_cmd *cmd;
5824 struct megasas_dcmd_frame *dcmd;
5825 u16 targetId = (sdev->channel % 2) + sdev->id;
5826
5827 cmd = megasas_get_cmd(instance);
5828
5829 if (!cmd) {
5830 dev_err(&instance->pdev->dev,
5831 "Failed to get cmd %s\n", __func__);
5832 return -ENOMEM;
5833 }
5834
5835 dcmd = &cmd->frame->dcmd;
5836
5837 memset(instance->tgt_prop, 0, sizeof(*instance->tgt_prop));
5838 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
5839 dcmd->mbox.b[0] = MEGASAS_IS_LOGICAL(sdev);
5840
5841 dcmd->mbox.s[1] = cpu_to_le16(targetId);
5842 dcmd->cmd = MFI_CMD_DCMD;
5843 dcmd->cmd_status = 0xFF;
5844 dcmd->sge_count = 1;
5845 dcmd->flags = MFI_FRAME_DIR_READ;
5846 dcmd->timeout = 0;
5847 dcmd->pad_0 = 0;
5848 dcmd->data_xfer_len =
5849 cpu_to_le32(sizeof(struct MR_TARGET_PROPERTIES));
5850 dcmd->opcode = cpu_to_le32(MR_DCMD_DRV_GET_TARGET_PROP);
5851
5852 megasas_set_dma_settings(instance, dcmd, instance->tgt_prop_h,
5853 sizeof(struct MR_TARGET_PROPERTIES));
5854
5855 if ((instance->adapter_type != MFI_SERIES) &&
5856 !instance->mask_interrupts)
5857 ret = megasas_issue_blocked_cmd(instance,
5858 cmd, MFI_IO_TIMEOUT_SECS);
5859 else
5860 ret = megasas_issue_polled(instance, cmd);
5861
5862 switch (ret) {
5863 case DCMD_TIMEOUT:
5864 switch (dcmd_timeout_ocr_possible(instance)) {
5865 case INITIATE_OCR:
5866 cmd->flags |= DRV_DCMD_SKIP_REFIRE;
5867 megasas_reset_fusion(instance->host,
5868 MFI_IO_TIMEOUT_OCR);
5869 break;
5870 case KILL_ADAPTER:
5871 megaraid_sas_kill_hba(instance);
5872 break;
5873 case IGNORE_TIMEOUT:
5874 dev_info(&instance->pdev->dev,
5875 "Ignore DCMD timeout: %s %d\n",
5876 __func__, __LINE__);
5877 break;
5878 }
5879 break;
5880
5881 default:
5882 megasas_return_cmd(instance, cmd);
5883 }
5884 if (ret != DCMD_SUCCESS)
5885 dev_err(&instance->pdev->dev,
5886 "return from %s %d return value %d\n",
5887 __func__, __LINE__, ret);
5888
5889 return ret;
5890 }
5891
5892 /**
5893 * megasas_start_aen - Subscribes to AEN during driver load time
5894 * @instance: Adapter soft state
5895 */
5896 static int megasas_start_aen(struct megasas_instance *instance)
5897 {
5898 struct megasas_evt_log_info eli;
5899 union megasas_evt_class_locale class_locale;
5900
5901 /*
5902 * Get the latest sequence number from FW
5903 */
5904 memset(&eli, 0, sizeof(eli));
5905
5906 if (megasas_get_seq_num(instance, &eli))
5907 return -1;
5908
5909 /*
5910 * Register AEN with FW for latest sequence number plus 1
5911 */
5912 class_locale.members.reserved = 0;
5913 class_locale.members.locale = MR_EVT_LOCALE_ALL;
5914 class_locale.members.class = MR_EVT_CLASS_DEBUG;
5915
5916 return megasas_register_aen(instance,
5917 le32_to_cpu(eli.newest_seq_num) + 1,
5918 class_locale.word);
5919 }
5920
5921 /**
5922 * megasas_io_attach - Attaches this driver to SCSI mid-layer
5923 * @instance: Adapter soft state
5924 */
5925 static int megasas_io_attach(struct megasas_instance *instance)
5926 {
5927 struct Scsi_Host *host = instance->host;
5928
5929 /*
5930 * Export parameters required by SCSI mid-layer
5931 */
5932 host->unique_id = instance->unique_id;
5933 host->can_queue = instance->max_scsi_cmds;
5934 host->this_id = instance->init_id;
5935 host->sg_tablesize = instance->max_num_sge;
5936
5937 if (instance->fw_support_ieee)
5938 instance->max_sectors_per_req = MEGASAS_MAX_SECTORS_IEEE;
5939
5940 /*
5941 * Check if the module parameter value for max_sectors can be used
5942 */
5943 if (max_sectors && max_sectors < instance->max_sectors_per_req)
5944 instance->max_sectors_per_req = max_sectors;
5945 else {
5946 if (max_sectors) {
5947 if (((instance->pdev->device ==
5948 PCI_DEVICE_ID_LSI_SAS1078GEN2) ||
5949 (instance->pdev->device ==
5950 PCI_DEVICE_ID_LSI_SAS0079GEN2)) &&
5951 (max_sectors <= MEGASAS_MAX_SECTORS)) {
5952 instance->max_sectors_per_req = max_sectors;
5953 } else {
5954 dev_info(&instance->pdev->dev, "max_sectors should be > 0"
5955 "and <= %d (or < 1MB for GEN2 controller)\n",
5956 instance->max_sectors_per_req);
5957 }
5958 }
5959 }
5960
5961 host->max_sectors = instance->max_sectors_per_req;
5962 host->cmd_per_lun = MEGASAS_DEFAULT_CMD_PER_LUN;
5963 host->max_channel = MEGASAS_MAX_CHANNELS - 1;
5964 host->max_id = MEGASAS_MAX_DEV_PER_CHANNEL;
5965 host->max_lun = MEGASAS_MAX_LUN;
5966 host->max_cmd_len = 16;
5967
5968 /*
5969 * Notify the mid-layer about the new controller
5970 */
5971 if (scsi_add_host(host, &instance->pdev->dev)) {
5972 dev_err(&instance->pdev->dev,
5973 "Failed to add host from %s %d\n",
5974 __func__, __LINE__);
5975 return -ENODEV;
5976 }
5977
5978 return 0;
5979 }
5980
5981 /**
5982 * megasas_set_dma_mask - Set DMA mask for supported controllers
5983 *
5984 * @instance: Adapter soft state
5985 * Description:
5986 *
5987 * For Ventura, driver/FW will operate in 64bit DMA addresses.
5988 *
5989 * For invader-
5990 * By default, driver/FW will operate in 32bit DMA addresses
5991 * for consistent DMA mapping but if 32 bit consistent
5992 * DMA mask fails, driver will try with 64 bit consistent
5993 * mask provided FW is true 64bit DMA capable
5994 *
5995 * For older controllers(Thunderbolt and MFI based adapters)-
5996 * driver/FW will operate in 32 bit consistent DMA addresses.
5997 */
5998 static int
5999 megasas_set_dma_mask(struct megasas_instance *instance)
6000 {
6001 u64 consistent_mask;
6002 struct pci_dev *pdev;
6003 u32 scratch_pad_2;
6004
6005 pdev = instance->pdev;
6006 consistent_mask = (instance->adapter_type == VENTURA_SERIES) ?
6007 DMA_BIT_MASK(64) : DMA_BIT_MASK(32);
6008
6009 if (IS_DMA64) {
6010 if (dma_set_mask(&pdev->dev, DMA_BIT_MASK(64)) &&
6011 dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)))
6012 goto fail_set_dma_mask;
6013
6014 if ((*pdev->dev.dma_mask == DMA_BIT_MASK(64)) &&
6015 (dma_set_coherent_mask(&pdev->dev, consistent_mask) &&
6016 dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)))) {
6017 /*
6018 * If 32 bit DMA mask fails, then try for 64 bit mask
6019 * for FW capable of handling 64 bit DMA.
6020 */
6021 scratch_pad_2 = readl
6022 (&instance->reg_set->outbound_scratch_pad_2);
6023
6024 if (!(scratch_pad_2 & MR_CAN_HANDLE_64_BIT_DMA_OFFSET))
6025 goto fail_set_dma_mask;
6026 else if (dma_set_mask_and_coherent(&pdev->dev,
6027 DMA_BIT_MASK(64)))
6028 goto fail_set_dma_mask;
6029 }
6030 } else if (dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)))
6031 goto fail_set_dma_mask;
6032
6033 if (pdev->dev.coherent_dma_mask == DMA_BIT_MASK(32))
6034 instance->consistent_mask_64bit = false;
6035 else
6036 instance->consistent_mask_64bit = true;
6037
6038 dev_info(&pdev->dev, "%s bit DMA mask and %s bit consistent mask\n",
6039 ((*pdev->dev.dma_mask == DMA_BIT_MASK(64)) ? "64" : "32"),
6040 (instance->consistent_mask_64bit ? "64" : "32"));
6041
6042 return 0;
6043
6044 fail_set_dma_mask:
6045 dev_err(&pdev->dev, "Failed to set DMA mask\n");
6046 return -1;
6047
6048 }
6049
6050 /*
6051 * megasas_set_adapter_type - Set adapter type.
6052 * Supported controllers can be divided in
6053 * 4 categories- enum MR_ADAPTER_TYPE {
6054 * MFI_SERIES = 1,
6055 * THUNDERBOLT_SERIES = 2,
6056 * INVADER_SERIES = 3,
6057 * VENTURA_SERIES = 4,
6058 * };
6059 * @instance: Adapter soft state
6060 * return: void
6061 */
6062 static inline void megasas_set_adapter_type(struct megasas_instance *instance)
6063 {
6064 if ((instance->pdev->vendor == PCI_VENDOR_ID_DELL) &&
6065 (instance->pdev->device == PCI_DEVICE_ID_DELL_PERC5)) {
6066 instance->adapter_type = MFI_SERIES;
6067 } else {
6068 switch (instance->pdev->device) {
6069 case PCI_DEVICE_ID_LSI_VENTURA:
6070 case PCI_DEVICE_ID_LSI_CRUSADER:
6071 case PCI_DEVICE_ID_LSI_HARPOON:
6072 case PCI_DEVICE_ID_LSI_TOMCAT:
6073 case PCI_DEVICE_ID_LSI_VENTURA_4PORT:
6074 case PCI_DEVICE_ID_LSI_CRUSADER_4PORT:
6075 instance->adapter_type = VENTURA_SERIES;
6076 break;
6077 case PCI_DEVICE_ID_LSI_FUSION:
6078 case PCI_DEVICE_ID_LSI_PLASMA:
6079 instance->adapter_type = THUNDERBOLT_SERIES;
6080 break;
6081 case PCI_DEVICE_ID_LSI_INVADER:
6082 case PCI_DEVICE_ID_LSI_INTRUDER:
6083 case PCI_DEVICE_ID_LSI_INTRUDER_24:
6084 case PCI_DEVICE_ID_LSI_CUTLASS_52:
6085 case PCI_DEVICE_ID_LSI_CUTLASS_53:
6086 case PCI_DEVICE_ID_LSI_FURY:
6087 instance->adapter_type = INVADER_SERIES;
6088 break;
6089 default: /* For all other supported controllers */
6090 instance->adapter_type = MFI_SERIES;
6091 break;
6092 }
6093 }
6094 }
6095
6096 static inline int megasas_alloc_mfi_ctrl_mem(struct megasas_instance *instance)
6097 {
6098 instance->producer = pci_alloc_consistent(instance->pdev, sizeof(u32),
6099 &instance->producer_h);
6100 instance->consumer = pci_alloc_consistent(instance->pdev, sizeof(u32),
6101 &instance->consumer_h);
6102
6103 if (!instance->producer || !instance->consumer) {
6104 dev_err(&instance->pdev->dev,
6105 "Failed to allocate memory for producer, consumer\n");
6106 return -1;
6107 }
6108
6109 *instance->producer = 0;
6110 *instance->consumer = 0;
6111 return 0;
6112 }
6113
6114 /**
6115 * megasas_alloc_ctrl_mem - Allocate per controller memory for core data
6116 * structures which are not common across MFI
6117 * adapters and fusion adapters.
6118 * For MFI based adapters, allocate producer and
6119 * consumer buffers. For fusion adapters, allocate
6120 * memory for fusion context.
6121 * @instance: Adapter soft state
6122 * return: 0 for SUCCESS
6123 */
6124 static int megasas_alloc_ctrl_mem(struct megasas_instance *instance)
6125 {
6126 switch (instance->adapter_type) {
6127 case MFI_SERIES:
6128 if (megasas_alloc_mfi_ctrl_mem(instance))
6129 return -ENOMEM;
6130 break;
6131 case VENTURA_SERIES:
6132 case THUNDERBOLT_SERIES:
6133 case INVADER_SERIES:
6134 if (megasas_alloc_fusion_context(instance))
6135 return -ENOMEM;
6136 break;
6137 }
6138
6139 return 0;
6140 }
6141
6142 /*
6143 * megasas_free_ctrl_mem - Free fusion context for fusion adapters and
6144 * producer, consumer buffers for MFI adapters
6145 *
6146 * @instance - Adapter soft instance
6147 *
6148 */
6149 static inline void megasas_free_ctrl_mem(struct megasas_instance *instance)
6150 {
6151 if (instance->adapter_type == MFI_SERIES) {
6152 if (instance->producer)
6153 pci_free_consistent(instance->pdev, sizeof(u32),
6154 instance->producer,
6155 instance->producer_h);
6156 if (instance->consumer)
6157 pci_free_consistent(instance->pdev, sizeof(u32),
6158 instance->consumer,
6159 instance->consumer_h);
6160 } else {
6161 megasas_free_fusion_context(instance);
6162 }
6163 }
6164
6165 /**
6166 * megasas_alloc_ctrl_dma_buffers - Allocate consistent DMA buffers during
6167 * driver load time
6168 *
6169 * @instance- Adapter soft instance
6170 * @return- O for SUCCESS
6171 */
6172 static inline
6173 int megasas_alloc_ctrl_dma_buffers(struct megasas_instance *instance)
6174 {
6175 struct pci_dev *pdev = instance->pdev;
6176 struct fusion_context *fusion = instance->ctrl_context;
6177
6178 instance->evt_detail =
6179 pci_alloc_consistent(pdev,
6180 sizeof(struct megasas_evt_detail),
6181 &instance->evt_detail_h);
6182
6183 if (!instance->evt_detail) {
6184 dev_err(&instance->pdev->dev,
6185 "Failed to allocate event detail buffer\n");
6186 return -ENOMEM;
6187 }
6188
6189 if (fusion) {
6190 fusion->ioc_init_request =
6191 dma_alloc_coherent(&pdev->dev,
6192 sizeof(struct MPI2_IOC_INIT_REQUEST),
6193 &fusion->ioc_init_request_phys,
6194 GFP_KERNEL);
6195
6196 if (!fusion->ioc_init_request) {
6197 dev_err(&pdev->dev,
6198 "Failed to allocate PD list buffer\n");
6199 return -ENOMEM;
6200 }
6201 }
6202
6203 instance->pd_list_buf =
6204 pci_alloc_consistent(pdev,
6205 MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST),
6206 &instance->pd_list_buf_h);
6207
6208 if (!instance->pd_list_buf) {
6209 dev_err(&pdev->dev, "Failed to allocate PD list buffer\n");
6210 return -ENOMEM;
6211 }
6212
6213 instance->ctrl_info_buf =
6214 pci_alloc_consistent(pdev,
6215 sizeof(struct megasas_ctrl_info),
6216 &instance->ctrl_info_buf_h);
6217
6218 if (!instance->ctrl_info_buf) {
6219 dev_err(&pdev->dev,
6220 "Failed to allocate controller info buffer\n");
6221 return -ENOMEM;
6222 }
6223
6224 instance->ld_list_buf =
6225 pci_alloc_consistent(pdev,
6226 sizeof(struct MR_LD_LIST),
6227 &instance->ld_list_buf_h);
6228
6229 if (!instance->ld_list_buf) {
6230 dev_err(&pdev->dev, "Failed to allocate LD list buffer\n");
6231 return -ENOMEM;
6232 }
6233
6234 instance->ld_targetid_list_buf =
6235 pci_alloc_consistent(pdev,
6236 sizeof(struct MR_LD_TARGETID_LIST),
6237 &instance->ld_targetid_list_buf_h);
6238
6239 if (!instance->ld_targetid_list_buf) {
6240 dev_err(&pdev->dev,
6241 "Failed to allocate LD targetid list buffer\n");
6242 return -ENOMEM;
6243 }
6244
6245 if (!reset_devices) {
6246 instance->system_info_buf =
6247 pci_alloc_consistent(pdev,
6248 sizeof(struct MR_DRV_SYSTEM_INFO),
6249 &instance->system_info_h);
6250 instance->pd_info =
6251 pci_alloc_consistent(pdev,
6252 sizeof(struct MR_PD_INFO),
6253 &instance->pd_info_h);
6254 instance->tgt_prop =
6255 pci_alloc_consistent(pdev,
6256 sizeof(struct MR_TARGET_PROPERTIES),
6257 &instance->tgt_prop_h);
6258 instance->crash_dump_buf =
6259 pci_alloc_consistent(pdev,
6260 CRASH_DMA_BUF_SIZE,
6261 &instance->crash_dump_h);
6262
6263 if (!instance->system_info_buf)
6264 dev_err(&instance->pdev->dev,
6265 "Failed to allocate system info buffer\n");
6266
6267 if (!instance->pd_info)
6268 dev_err(&instance->pdev->dev,
6269 "Failed to allocate pd_info buffer\n");
6270
6271 if (!instance->tgt_prop)
6272 dev_err(&instance->pdev->dev,
6273 "Failed to allocate tgt_prop buffer\n");
6274
6275 if (!instance->crash_dump_buf)
6276 dev_err(&instance->pdev->dev,
6277 "Failed to allocate crash dump buffer\n");
6278 }
6279
6280 return 0;
6281 }
6282
6283 /*
6284 * megasas_free_ctrl_dma_buffers - Free consistent DMA buffers allocated
6285 * during driver load time
6286 *
6287 * @instance- Adapter soft instance
6288 *
6289 */
6290 static inline
6291 void megasas_free_ctrl_dma_buffers(struct megasas_instance *instance)
6292 {
6293 struct pci_dev *pdev = instance->pdev;
6294 struct fusion_context *fusion = instance->ctrl_context;
6295
6296 if (instance->evt_detail)
6297 pci_free_consistent(pdev, sizeof(struct megasas_evt_detail),
6298 instance->evt_detail,
6299 instance->evt_detail_h);
6300
6301 if (fusion && fusion->ioc_init_request)
6302 dma_free_coherent(&pdev->dev,
6303 sizeof(struct MPI2_IOC_INIT_REQUEST),
6304 fusion->ioc_init_request,
6305 fusion->ioc_init_request_phys);
6306
6307 if (instance->pd_list_buf)
6308 pci_free_consistent(pdev,
6309 MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST),
6310 instance->pd_list_buf,
6311 instance->pd_list_buf_h);
6312
6313 if (instance->ld_list_buf)
6314 pci_free_consistent(pdev, sizeof(struct MR_LD_LIST),
6315 instance->ld_list_buf,
6316 instance->ld_list_buf_h);
6317
6318 if (instance->ld_targetid_list_buf)
6319 pci_free_consistent(pdev, sizeof(struct MR_LD_TARGETID_LIST),
6320 instance->ld_targetid_list_buf,
6321 instance->ld_targetid_list_buf_h);
6322
6323 if (instance->ctrl_info_buf)
6324 pci_free_consistent(pdev, sizeof(struct megasas_ctrl_info),
6325 instance->ctrl_info_buf,
6326 instance->ctrl_info_buf_h);
6327
6328 if (instance->system_info_buf)
6329 pci_free_consistent(pdev, sizeof(struct MR_DRV_SYSTEM_INFO),
6330 instance->system_info_buf,
6331 instance->system_info_h);
6332
6333 if (instance->pd_info)
6334 pci_free_consistent(pdev, sizeof(struct MR_PD_INFO),
6335 instance->pd_info, instance->pd_info_h);
6336
6337 if (instance->tgt_prop)
6338 pci_free_consistent(pdev, sizeof(struct MR_TARGET_PROPERTIES),
6339 instance->tgt_prop, instance->tgt_prop_h);
6340
6341 if (instance->crash_dump_buf)
6342 pci_free_consistent(pdev, CRASH_DMA_BUF_SIZE,
6343 instance->crash_dump_buf,
6344 instance->crash_dump_h);
6345 }
6346
6347 /*
6348 * megasas_init_ctrl_params - Initialize controller's instance
6349 * parameters before FW init
6350 * @instance - Adapter soft instance
6351 * @return - void
6352 */
6353 static inline void megasas_init_ctrl_params(struct megasas_instance *instance)
6354 {
6355 instance->fw_crash_state = UNAVAILABLE;
6356
6357 megasas_poll_wait_aen = 0;
6358 instance->issuepend_done = 1;
6359 atomic_set(&instance->adprecovery, MEGASAS_HBA_OPERATIONAL);
6360
6361 /*
6362 * Initialize locks and queues
6363 */
6364 INIT_LIST_HEAD(&instance->cmd_pool);
6365 INIT_LIST_HEAD(&instance->internal_reset_pending_q);
6366
6367 atomic_set(&instance->fw_outstanding, 0);
6368
6369 init_waitqueue_head(&instance->int_cmd_wait_q);
6370 init_waitqueue_head(&instance->abort_cmd_wait_q);
6371
6372 spin_lock_init(&instance->crashdump_lock);
6373 spin_lock_init(&instance->mfi_pool_lock);
6374 spin_lock_init(&instance->hba_lock);
6375 spin_lock_init(&instance->stream_lock);
6376 spin_lock_init(&instance->completion_lock);
6377
6378 mutex_init(&instance->reset_mutex);
6379
6380 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
6381 (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY))
6382 instance->flag_ieee = 1;
6383
6384 megasas_dbg_lvl = 0;
6385 instance->flag = 0;
6386 instance->unload = 1;
6387 instance->last_time = 0;
6388 instance->disableOnlineCtrlReset = 1;
6389 instance->UnevenSpanSupport = 0;
6390
6391 if (instance->adapter_type != MFI_SERIES) {
6392 INIT_WORK(&instance->work_init, megasas_fusion_ocr_wq);
6393 INIT_WORK(&instance->crash_init, megasas_fusion_crash_dump_wq);
6394 } else {
6395 INIT_WORK(&instance->work_init, process_fw_state_change_wq);
6396 }
6397 }
6398
6399 /**
6400 * megasas_probe_one - PCI hotplug entry point
6401 * @pdev: PCI device structure
6402 * @id: PCI ids of supported hotplugged adapter
6403 */
6404 static int megasas_probe_one(struct pci_dev *pdev,
6405 const struct pci_device_id *id)
6406 {
6407 int rval, pos;
6408 struct Scsi_Host *host;
6409 struct megasas_instance *instance;
6410 u16 control = 0;
6411
6412 /* Reset MSI-X in the kdump kernel */
6413 if (reset_devices) {
6414 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
6415 if (pos) {
6416 pci_read_config_word(pdev, pos + PCI_MSIX_FLAGS,
6417 &control);
6418 if (control & PCI_MSIX_FLAGS_ENABLE) {
6419 dev_info(&pdev->dev, "resetting MSI-X\n");
6420 pci_write_config_word(pdev,
6421 pos + PCI_MSIX_FLAGS,
6422 control &
6423 ~PCI_MSIX_FLAGS_ENABLE);
6424 }
6425 }
6426 }
6427
6428 /*
6429 * PCI prepping: enable device set bus mastering and dma mask
6430 */
6431 rval = pci_enable_device_mem(pdev);
6432
6433 if (rval) {
6434 return rval;
6435 }
6436
6437 pci_set_master(pdev);
6438
6439 host = scsi_host_alloc(&megasas_template,
6440 sizeof(struct megasas_instance));
6441
6442 if (!host) {
6443 dev_printk(KERN_DEBUG, &pdev->dev, "scsi_host_alloc failed\n");
6444 goto fail_alloc_instance;
6445 }
6446
6447 instance = (struct megasas_instance *)host->hostdata;
6448 memset(instance, 0, sizeof(*instance));
6449 atomic_set(&instance->fw_reset_no_pci_access, 0);
6450
6451 /*
6452 * Initialize PCI related and misc parameters
6453 */
6454 instance->pdev = pdev;
6455 instance->host = host;
6456 instance->unique_id = pdev->bus->number << 8 | pdev->devfn;
6457 instance->init_id = MEGASAS_DEFAULT_INIT_ID;
6458
6459 megasas_set_adapter_type(instance);
6460
6461 /*
6462 * Initialize MFI Firmware
6463 */
6464 if (megasas_init_fw(instance))
6465 goto fail_init_mfi;
6466
6467 if (instance->requestorId) {
6468 if (instance->PlasmaFW111) {
6469 instance->vf_affiliation_111 =
6470 pci_alloc_consistent(pdev, sizeof(struct MR_LD_VF_AFFILIATION_111),
6471 &instance->vf_affiliation_111_h);
6472 if (!instance->vf_affiliation_111)
6473 dev_warn(&pdev->dev, "Can't allocate "
6474 "memory for VF affiliation buffer\n");
6475 } else {
6476 instance->vf_affiliation =
6477 pci_alloc_consistent(pdev,
6478 (MAX_LOGICAL_DRIVES + 1) *
6479 sizeof(struct MR_LD_VF_AFFILIATION),
6480 &instance->vf_affiliation_h);
6481 if (!instance->vf_affiliation)
6482 dev_warn(&pdev->dev, "Can't allocate "
6483 "memory for VF affiliation buffer\n");
6484 }
6485 }
6486
6487 /*
6488 * Store instance in PCI softstate
6489 */
6490 pci_set_drvdata(pdev, instance);
6491
6492 /*
6493 * Add this controller to megasas_mgmt_info structure so that it
6494 * can be exported to management applications
6495 */
6496 megasas_mgmt_info.count++;
6497 megasas_mgmt_info.instance[megasas_mgmt_info.max_index] = instance;
6498 megasas_mgmt_info.max_index++;
6499
6500 /*
6501 * Register with SCSI mid-layer
6502 */
6503 if (megasas_io_attach(instance))
6504 goto fail_io_attach;
6505
6506 instance->unload = 0;
6507 /*
6508 * Trigger SCSI to scan our drives
6509 */
6510 scsi_scan_host(host);
6511
6512 /*
6513 * Initiate AEN (Asynchronous Event Notification)
6514 */
6515 if (megasas_start_aen(instance)) {
6516 dev_printk(KERN_DEBUG, &pdev->dev, "start aen failed\n");
6517 goto fail_start_aen;
6518 }
6519
6520 /* Get current SR-IOV LD/VF affiliation */
6521 if (instance->requestorId)
6522 megasas_get_ld_vf_affiliation(instance, 1);
6523
6524 return 0;
6525
6526 fail_start_aen:
6527 fail_io_attach:
6528 megasas_mgmt_info.count--;
6529 megasas_mgmt_info.max_index--;
6530 megasas_mgmt_info.instance[megasas_mgmt_info.max_index] = NULL;
6531
6532 instance->instancet->disable_intr(instance);
6533 megasas_destroy_irqs(instance);
6534
6535 if (instance->adapter_type != MFI_SERIES)
6536 megasas_release_fusion(instance);
6537 else
6538 megasas_release_mfi(instance);
6539 if (instance->msix_vectors)
6540 pci_free_irq_vectors(instance->pdev);
6541 fail_init_mfi:
6542 scsi_host_put(host);
6543
6544 fail_alloc_instance:
6545 pci_disable_device(pdev);
6546
6547 return -ENODEV;
6548 }
6549
6550 /**
6551 * megasas_flush_cache - Requests FW to flush all its caches
6552 * @instance: Adapter soft state
6553 */
6554 static void megasas_flush_cache(struct megasas_instance *instance)
6555 {
6556 struct megasas_cmd *cmd;
6557 struct megasas_dcmd_frame *dcmd;
6558
6559 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR)
6560 return;
6561
6562 cmd = megasas_get_cmd(instance);
6563
6564 if (!cmd)
6565 return;
6566
6567 dcmd = &cmd->frame->dcmd;
6568
6569 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
6570
6571 dcmd->cmd = MFI_CMD_DCMD;
6572 dcmd->cmd_status = 0x0;
6573 dcmd->sge_count = 0;
6574 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_NONE);
6575 dcmd->timeout = 0;
6576 dcmd->pad_0 = 0;
6577 dcmd->data_xfer_len = 0;
6578 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_CACHE_FLUSH);
6579 dcmd->mbox.b[0] = MR_FLUSH_CTRL_CACHE | MR_FLUSH_DISK_CACHE;
6580
6581 if (megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS)
6582 != DCMD_SUCCESS) {
6583 dev_err(&instance->pdev->dev,
6584 "return from %s %d\n", __func__, __LINE__);
6585 return;
6586 }
6587
6588 megasas_return_cmd(instance, cmd);
6589 }
6590
6591 /**
6592 * megasas_shutdown_controller - Instructs FW to shutdown the controller
6593 * @instance: Adapter soft state
6594 * @opcode: Shutdown/Hibernate
6595 */
6596 static void megasas_shutdown_controller(struct megasas_instance *instance,
6597 u32 opcode)
6598 {
6599 struct megasas_cmd *cmd;
6600 struct megasas_dcmd_frame *dcmd;
6601
6602 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR)
6603 return;
6604
6605 cmd = megasas_get_cmd(instance);
6606
6607 if (!cmd)
6608 return;
6609
6610 if (instance->aen_cmd)
6611 megasas_issue_blocked_abort_cmd(instance,
6612 instance->aen_cmd, MFI_IO_TIMEOUT_SECS);
6613 if (instance->map_update_cmd)
6614 megasas_issue_blocked_abort_cmd(instance,
6615 instance->map_update_cmd, MFI_IO_TIMEOUT_SECS);
6616 if (instance->jbod_seq_cmd)
6617 megasas_issue_blocked_abort_cmd(instance,
6618 instance->jbod_seq_cmd, MFI_IO_TIMEOUT_SECS);
6619
6620 dcmd = &cmd->frame->dcmd;
6621
6622 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
6623
6624 dcmd->cmd = MFI_CMD_DCMD;
6625 dcmd->cmd_status = 0x0;
6626 dcmd->sge_count = 0;
6627 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_NONE);
6628 dcmd->timeout = 0;
6629 dcmd->pad_0 = 0;
6630 dcmd->data_xfer_len = 0;
6631 dcmd->opcode = cpu_to_le32(opcode);
6632
6633 if (megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS)
6634 != DCMD_SUCCESS) {
6635 dev_err(&instance->pdev->dev,
6636 "return from %s %d\n", __func__, __LINE__);
6637 return;
6638 }
6639
6640 megasas_return_cmd(instance, cmd);
6641 }
6642
6643 #ifdef CONFIG_PM
6644 /**
6645 * megasas_suspend - driver suspend entry point
6646 * @pdev: PCI device structure
6647 * @state: PCI power state to suspend routine
6648 */
6649 static int
6650 megasas_suspend(struct pci_dev *pdev, pm_message_t state)
6651 {
6652 struct Scsi_Host *host;
6653 struct megasas_instance *instance;
6654
6655 instance = pci_get_drvdata(pdev);
6656 host = instance->host;
6657 instance->unload = 1;
6658
6659 /* Shutdown SR-IOV heartbeat timer */
6660 if (instance->requestorId && !instance->skip_heartbeat_timer_del)
6661 del_timer_sync(&instance->sriov_heartbeat_timer);
6662
6663 megasas_flush_cache(instance);
6664 megasas_shutdown_controller(instance, MR_DCMD_HIBERNATE_SHUTDOWN);
6665
6666 /* cancel the delayed work if this work still in queue */
6667 if (instance->ev != NULL) {
6668 struct megasas_aen_event *ev = instance->ev;
6669 cancel_delayed_work_sync(&ev->hotplug_work);
6670 instance->ev = NULL;
6671 }
6672
6673 tasklet_kill(&instance->isr_tasklet);
6674
6675 pci_set_drvdata(instance->pdev, instance);
6676 instance->instancet->disable_intr(instance);
6677
6678 megasas_destroy_irqs(instance);
6679
6680 if (instance->msix_vectors)
6681 pci_free_irq_vectors(instance->pdev);
6682
6683 pci_save_state(pdev);
6684 pci_disable_device(pdev);
6685
6686 pci_set_power_state(pdev, pci_choose_state(pdev, state));
6687
6688 return 0;
6689 }
6690
6691 /**
6692 * megasas_resume- driver resume entry point
6693 * @pdev: PCI device structure
6694 */
6695 static int
6696 megasas_resume(struct pci_dev *pdev)
6697 {
6698 int rval;
6699 struct Scsi_Host *host;
6700 struct megasas_instance *instance;
6701 int irq_flags = PCI_IRQ_LEGACY;
6702
6703 instance = pci_get_drvdata(pdev);
6704 host = instance->host;
6705 pci_set_power_state(pdev, PCI_D0);
6706 pci_enable_wake(pdev, PCI_D0, 0);
6707 pci_restore_state(pdev);
6708
6709 /*
6710 * PCI prepping: enable device set bus mastering and dma mask
6711 */
6712 rval = pci_enable_device_mem(pdev);
6713
6714 if (rval) {
6715 dev_err(&pdev->dev, "Enable device failed\n");
6716 return rval;
6717 }
6718
6719 pci_set_master(pdev);
6720
6721 /*
6722 * We expect the FW state to be READY
6723 */
6724 if (megasas_transition_to_ready(instance, 0))
6725 goto fail_ready_state;
6726
6727 if (megasas_set_dma_mask(instance))
6728 goto fail_set_dma_mask;
6729
6730 /*
6731 * Initialize MFI Firmware
6732 */
6733
6734 atomic_set(&instance->fw_outstanding, 0);
6735 atomic_set(&instance->ldio_outstanding, 0);
6736
6737 /* Now re-enable MSI-X */
6738 if (instance->msix_vectors) {
6739 irq_flags = PCI_IRQ_MSIX;
6740 if (smp_affinity_enable)
6741 irq_flags |= PCI_IRQ_AFFINITY;
6742 }
6743 rval = pci_alloc_irq_vectors(instance->pdev, 1,
6744 instance->msix_vectors ?
6745 instance->msix_vectors : 1, irq_flags);
6746 if (rval < 0)
6747 goto fail_reenable_msix;
6748
6749 if (instance->adapter_type != MFI_SERIES) {
6750 megasas_reset_reply_desc(instance);
6751 if (megasas_ioc_init_fusion(instance)) {
6752 megasas_free_cmds(instance);
6753 megasas_free_cmds_fusion(instance);
6754 goto fail_init_mfi;
6755 }
6756 if (!megasas_get_map_info(instance))
6757 megasas_sync_map_info(instance);
6758 } else {
6759 *instance->producer = 0;
6760 *instance->consumer = 0;
6761 if (megasas_issue_init_mfi(instance))
6762 goto fail_init_mfi;
6763 }
6764
6765 tasklet_init(&instance->isr_tasklet, instance->instancet->tasklet,
6766 (unsigned long)instance);
6767
6768 if (instance->msix_vectors ?
6769 megasas_setup_irqs_msix(instance, 0) :
6770 megasas_setup_irqs_ioapic(instance))
6771 goto fail_init_mfi;
6772
6773 /* Re-launch SR-IOV heartbeat timer */
6774 if (instance->requestorId) {
6775 if (!megasas_sriov_start_heartbeat(instance, 0))
6776 megasas_start_timer(instance);
6777 else {
6778 instance->skip_heartbeat_timer_del = 1;
6779 goto fail_init_mfi;
6780 }
6781 }
6782
6783 instance->instancet->enable_intr(instance);
6784 megasas_setup_jbod_map(instance);
6785 instance->unload = 0;
6786
6787 /*
6788 * Initiate AEN (Asynchronous Event Notification)
6789 */
6790 if (megasas_start_aen(instance))
6791 dev_err(&instance->pdev->dev, "Start AEN failed\n");
6792
6793 return 0;
6794
6795 fail_init_mfi:
6796 megasas_free_ctrl_dma_buffers(instance);
6797 megasas_free_ctrl_mem(instance);
6798 scsi_host_put(host);
6799
6800 fail_reenable_msix:
6801 fail_set_dma_mask:
6802 fail_ready_state:
6803
6804 pci_disable_device(pdev);
6805
6806 return -ENODEV;
6807 }
6808 #else
6809 #define megasas_suspend NULL
6810 #define megasas_resume NULL
6811 #endif
6812
6813 static inline int
6814 megasas_wait_for_adapter_operational(struct megasas_instance *instance)
6815 {
6816 int wait_time = MEGASAS_RESET_WAIT_TIME * 2;
6817 int i;
6818
6819 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR)
6820 return 1;
6821
6822 for (i = 0; i < wait_time; i++) {
6823 if (atomic_read(&instance->adprecovery) == MEGASAS_HBA_OPERATIONAL)
6824 break;
6825
6826 if (!(i % MEGASAS_RESET_NOTICE_INTERVAL))
6827 dev_notice(&instance->pdev->dev, "waiting for controller reset to finish\n");
6828
6829 msleep(1000);
6830 }
6831
6832 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) {
6833 dev_info(&instance->pdev->dev, "%s timed out while waiting for HBA to recover.\n",
6834 __func__);
6835 return 1;
6836 }
6837
6838 return 0;
6839 }
6840
6841 /**
6842 * megasas_detach_one - PCI hot"un"plug entry point
6843 * @pdev: PCI device structure
6844 */
6845 static void megasas_detach_one(struct pci_dev *pdev)
6846 {
6847 int i;
6848 struct Scsi_Host *host;
6849 struct megasas_instance *instance;
6850 struct fusion_context *fusion;
6851 u32 pd_seq_map_sz;
6852
6853 instance = pci_get_drvdata(pdev);
6854 host = instance->host;
6855 fusion = instance->ctrl_context;
6856
6857 /* Shutdown SR-IOV heartbeat timer */
6858 if (instance->requestorId && !instance->skip_heartbeat_timer_del)
6859 del_timer_sync(&instance->sriov_heartbeat_timer);
6860
6861 if (instance->fw_crash_state != UNAVAILABLE)
6862 megasas_free_host_crash_buffer(instance);
6863 scsi_remove_host(instance->host);
6864 instance->unload = 1;
6865
6866 if (megasas_wait_for_adapter_operational(instance))
6867 goto skip_firing_dcmds;
6868
6869 megasas_flush_cache(instance);
6870 megasas_shutdown_controller(instance, MR_DCMD_CTRL_SHUTDOWN);
6871
6872 skip_firing_dcmds:
6873 /* cancel the delayed work if this work still in queue*/
6874 if (instance->ev != NULL) {
6875 struct megasas_aen_event *ev = instance->ev;
6876 cancel_delayed_work_sync(&ev->hotplug_work);
6877 instance->ev = NULL;
6878 }
6879
6880 /* cancel all wait events */
6881 wake_up_all(&instance->int_cmd_wait_q);
6882
6883 tasklet_kill(&instance->isr_tasklet);
6884
6885 /*
6886 * Take the instance off the instance array. Note that we will not
6887 * decrement the max_index. We let this array be sparse array
6888 */
6889 for (i = 0; i < megasas_mgmt_info.max_index; i++) {
6890 if (megasas_mgmt_info.instance[i] == instance) {
6891 megasas_mgmt_info.count--;
6892 megasas_mgmt_info.instance[i] = NULL;
6893
6894 break;
6895 }
6896 }
6897
6898 instance->instancet->disable_intr(instance);
6899
6900 megasas_destroy_irqs(instance);
6901
6902 if (instance->msix_vectors)
6903 pci_free_irq_vectors(instance->pdev);
6904
6905 if (instance->adapter_type == VENTURA_SERIES) {
6906 for (i = 0; i < MAX_LOGICAL_DRIVES_EXT; ++i)
6907 kfree(fusion->stream_detect_by_ld[i]);
6908 kfree(fusion->stream_detect_by_ld);
6909 fusion->stream_detect_by_ld = NULL;
6910 }
6911
6912
6913 if (instance->adapter_type != MFI_SERIES) {
6914 megasas_release_fusion(instance);
6915 pd_seq_map_sz = sizeof(struct MR_PD_CFG_SEQ_NUM_SYNC) +
6916 (sizeof(struct MR_PD_CFG_SEQ) *
6917 (MAX_PHYSICAL_DEVICES - 1));
6918 for (i = 0; i < 2 ; i++) {
6919 if (fusion->ld_map[i])
6920 dma_free_coherent(&instance->pdev->dev,
6921 fusion->max_map_sz,
6922 fusion->ld_map[i],
6923 fusion->ld_map_phys[i]);
6924 if (fusion->ld_drv_map[i]) {
6925 if (is_vmalloc_addr(fusion->ld_drv_map[i]))
6926 vfree(fusion->ld_drv_map[i]);
6927 else
6928 free_pages((ulong)fusion->ld_drv_map[i],
6929 fusion->drv_map_pages);
6930 }
6931
6932 if (fusion->pd_seq_sync[i])
6933 dma_free_coherent(&instance->pdev->dev,
6934 pd_seq_map_sz,
6935 fusion->pd_seq_sync[i],
6936 fusion->pd_seq_phys[i]);
6937 }
6938 } else {
6939 megasas_release_mfi(instance);
6940 }
6941
6942 if (instance->vf_affiliation)
6943 pci_free_consistent(pdev, (MAX_LOGICAL_DRIVES + 1) *
6944 sizeof(struct MR_LD_VF_AFFILIATION),
6945 instance->vf_affiliation,
6946 instance->vf_affiliation_h);
6947
6948 if (instance->vf_affiliation_111)
6949 pci_free_consistent(pdev,
6950 sizeof(struct MR_LD_VF_AFFILIATION_111),
6951 instance->vf_affiliation_111,
6952 instance->vf_affiliation_111_h);
6953
6954 if (instance->hb_host_mem)
6955 pci_free_consistent(pdev, sizeof(struct MR_CTRL_HB_HOST_MEM),
6956 instance->hb_host_mem,
6957 instance->hb_host_mem_h);
6958
6959 megasas_free_ctrl_dma_buffers(instance);
6960
6961 megasas_free_ctrl_mem(instance);
6962
6963 scsi_host_put(host);
6964
6965 pci_disable_device(pdev);
6966 }
6967
6968 /**
6969 * megasas_shutdown - Shutdown entry point
6970 * @device: Generic device structure
6971 */
6972 static void megasas_shutdown(struct pci_dev *pdev)
6973 {
6974 struct megasas_instance *instance = pci_get_drvdata(pdev);
6975
6976 instance->unload = 1;
6977
6978 if (megasas_wait_for_adapter_operational(instance))
6979 goto skip_firing_dcmds;
6980
6981 megasas_flush_cache(instance);
6982 megasas_shutdown_controller(instance, MR_DCMD_CTRL_SHUTDOWN);
6983
6984 skip_firing_dcmds:
6985 instance->instancet->disable_intr(instance);
6986 megasas_destroy_irqs(instance);
6987
6988 if (instance->msix_vectors)
6989 pci_free_irq_vectors(instance->pdev);
6990 }
6991
6992 /**
6993 * megasas_mgmt_open - char node "open" entry point
6994 */
6995 static int megasas_mgmt_open(struct inode *inode, struct file *filep)
6996 {
6997 /*
6998 * Allow only those users with admin rights
6999 */
7000 if (!capable(CAP_SYS_ADMIN))
7001 return -EACCES;
7002
7003 return 0;
7004 }
7005
7006 /**
7007 * megasas_mgmt_fasync - Async notifier registration from applications
7008 *
7009 * This function adds the calling process to a driver global queue. When an
7010 * event occurs, SIGIO will be sent to all processes in this queue.
7011 */
7012 static int megasas_mgmt_fasync(int fd, struct file *filep, int mode)
7013 {
7014 int rc;
7015
7016 mutex_lock(&megasas_async_queue_mutex);
7017
7018 rc = fasync_helper(fd, filep, mode, &megasas_async_queue);
7019
7020 mutex_unlock(&megasas_async_queue_mutex);
7021
7022 if (rc >= 0) {
7023 /* For sanity check when we get ioctl */
7024 filep->private_data = filep;
7025 return 0;
7026 }
7027
7028 printk(KERN_DEBUG "megasas: fasync_helper failed [%d]\n", rc);
7029
7030 return rc;
7031 }
7032
7033 /**
7034 * megasas_mgmt_poll - char node "poll" entry point
7035 * */
7036 static __poll_t megasas_mgmt_poll(struct file *file, poll_table *wait)
7037 {
7038 __poll_t mask;
7039 unsigned long flags;
7040
7041 poll_wait(file, &megasas_poll_wait, wait);
7042 spin_lock_irqsave(&poll_aen_lock, flags);
7043 if (megasas_poll_wait_aen)
7044 mask = (EPOLLIN | EPOLLRDNORM);
7045 else
7046 mask = 0;
7047 megasas_poll_wait_aen = 0;
7048 spin_unlock_irqrestore(&poll_aen_lock, flags);
7049 return mask;
7050 }
7051
7052 /*
7053 * megasas_set_crash_dump_params_ioctl:
7054 * Send CRASH_DUMP_MODE DCMD to all controllers
7055 * @cmd: MFI command frame
7056 */
7057
7058 static int megasas_set_crash_dump_params_ioctl(struct megasas_cmd *cmd)
7059 {
7060 struct megasas_instance *local_instance;
7061 int i, error = 0;
7062 int crash_support;
7063
7064 crash_support = cmd->frame->dcmd.mbox.w[0];
7065
7066 for (i = 0; i < megasas_mgmt_info.max_index; i++) {
7067 local_instance = megasas_mgmt_info.instance[i];
7068 if (local_instance && local_instance->crash_dump_drv_support) {
7069 if ((atomic_read(&local_instance->adprecovery) ==
7070 MEGASAS_HBA_OPERATIONAL) &&
7071 !megasas_set_crash_dump_params(local_instance,
7072 crash_support)) {
7073 local_instance->crash_dump_app_support =
7074 crash_support;
7075 dev_info(&local_instance->pdev->dev,
7076 "Application firmware crash "
7077 "dump mode set success\n");
7078 error = 0;
7079 } else {
7080 dev_info(&local_instance->pdev->dev,
7081 "Application firmware crash "
7082 "dump mode set failed\n");
7083 error = -1;
7084 }
7085 }
7086 }
7087 return error;
7088 }
7089
7090 /**
7091 * megasas_mgmt_fw_ioctl - Issues management ioctls to FW
7092 * @instance: Adapter soft state
7093 * @argp: User's ioctl packet
7094 */
7095 static int
7096 megasas_mgmt_fw_ioctl(struct megasas_instance *instance,
7097 struct megasas_iocpacket __user * user_ioc,
7098 struct megasas_iocpacket *ioc)
7099 {
7100 struct megasas_sge64 *kern_sge64 = NULL;
7101 struct megasas_sge32 *kern_sge32 = NULL;
7102 struct megasas_cmd *cmd;
7103 void *kbuff_arr[MAX_IOCTL_SGE];
7104 dma_addr_t buf_handle = 0;
7105 int error = 0, i;
7106 void *sense = NULL;
7107 dma_addr_t sense_handle;
7108 unsigned long *sense_ptr;
7109 u32 opcode = 0;
7110
7111 memset(kbuff_arr, 0, sizeof(kbuff_arr));
7112
7113 if (ioc->sge_count > MAX_IOCTL_SGE) {
7114 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SGE count [%d] > max limit [%d]\n",
7115 ioc->sge_count, MAX_IOCTL_SGE);
7116 return -EINVAL;
7117 }
7118
7119 if ((ioc->frame.hdr.cmd >= MFI_CMD_OP_COUNT) ||
7120 ((ioc->frame.hdr.cmd == MFI_CMD_NVME) &&
7121 !instance->support_nvme_passthru)) {
7122 dev_err(&instance->pdev->dev,
7123 "Received invalid ioctl command 0x%x\n",
7124 ioc->frame.hdr.cmd);
7125 return -ENOTSUPP;
7126 }
7127
7128 cmd = megasas_get_cmd(instance);
7129 if (!cmd) {
7130 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to get a cmd packet\n");
7131 return -ENOMEM;
7132 }
7133
7134 /*
7135 * User's IOCTL packet has 2 frames (maximum). Copy those two
7136 * frames into our cmd's frames. cmd->frame's context will get
7137 * overwritten when we copy from user's frames. So set that value
7138 * alone separately
7139 */
7140 memcpy(cmd->frame, ioc->frame.raw, 2 * MEGAMFI_FRAME_SIZE);
7141 cmd->frame->hdr.context = cpu_to_le32(cmd->index);
7142 cmd->frame->hdr.pad_0 = 0;
7143
7144 cmd->frame->hdr.flags &= (~MFI_FRAME_IEEE);
7145
7146 if (instance->consistent_mask_64bit)
7147 cmd->frame->hdr.flags |= cpu_to_le16((MFI_FRAME_SGL64 |
7148 MFI_FRAME_SENSE64));
7149 else
7150 cmd->frame->hdr.flags &= cpu_to_le16(~(MFI_FRAME_SGL64 |
7151 MFI_FRAME_SENSE64));
7152
7153 if (cmd->frame->hdr.cmd == MFI_CMD_DCMD)
7154 opcode = le32_to_cpu(cmd->frame->dcmd.opcode);
7155
7156 if (opcode == MR_DCMD_CTRL_SHUTDOWN) {
7157 if (megasas_get_ctrl_info(instance) != DCMD_SUCCESS) {
7158 megasas_return_cmd(instance, cmd);
7159 return -1;
7160 }
7161 }
7162
7163 if (opcode == MR_DRIVER_SET_APP_CRASHDUMP_MODE) {
7164 error = megasas_set_crash_dump_params_ioctl(cmd);
7165 megasas_return_cmd(instance, cmd);
7166 return error;
7167 }
7168
7169 /*
7170 * The management interface between applications and the fw uses
7171 * MFI frames. E.g, RAID configuration changes, LD property changes
7172 * etc are accomplishes through different kinds of MFI frames. The
7173 * driver needs to care only about substituting user buffers with
7174 * kernel buffers in SGLs. The location of SGL is embedded in the
7175 * struct iocpacket itself.
7176 */
7177 if (instance->consistent_mask_64bit)
7178 kern_sge64 = (struct megasas_sge64 *)
7179 ((unsigned long)cmd->frame + ioc->sgl_off);
7180 else
7181 kern_sge32 = (struct megasas_sge32 *)
7182 ((unsigned long)cmd->frame + ioc->sgl_off);
7183
7184 /*
7185 * For each user buffer, create a mirror buffer and copy in
7186 */
7187 for (i = 0; i < ioc->sge_count; i++) {
7188 if (!ioc->sgl[i].iov_len)
7189 continue;
7190
7191 kbuff_arr[i] = dma_alloc_coherent(&instance->pdev->dev,
7192 ioc->sgl[i].iov_len,
7193 &buf_handle, GFP_KERNEL);
7194 if (!kbuff_arr[i]) {
7195 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to alloc "
7196 "kernel SGL buffer for IOCTL\n");
7197 error = -ENOMEM;
7198 goto out;
7199 }
7200
7201 /*
7202 * We don't change the dma_coherent_mask, so
7203 * pci_alloc_consistent only returns 32bit addresses
7204 */
7205 if (instance->consistent_mask_64bit) {
7206 kern_sge64[i].phys_addr = cpu_to_le64(buf_handle);
7207 kern_sge64[i].length = cpu_to_le32(ioc->sgl[i].iov_len);
7208 } else {
7209 kern_sge32[i].phys_addr = cpu_to_le32(buf_handle);
7210 kern_sge32[i].length = cpu_to_le32(ioc->sgl[i].iov_len);
7211 }
7212
7213 /*
7214 * We created a kernel buffer corresponding to the
7215 * user buffer. Now copy in from the user buffer
7216 */
7217 if (copy_from_user(kbuff_arr[i], ioc->sgl[i].iov_base,
7218 (u32) (ioc->sgl[i].iov_len))) {
7219 error = -EFAULT;
7220 goto out;
7221 }
7222 }
7223
7224 if (ioc->sense_len) {
7225 sense = dma_alloc_coherent(&instance->pdev->dev, ioc->sense_len,
7226 &sense_handle, GFP_KERNEL);
7227 if (!sense) {
7228 error = -ENOMEM;
7229 goto out;
7230 }
7231
7232 sense_ptr =
7233 (unsigned long *) ((unsigned long)cmd->frame + ioc->sense_off);
7234 if (instance->consistent_mask_64bit)
7235 *sense_ptr = cpu_to_le64(sense_handle);
7236 else
7237 *sense_ptr = cpu_to_le32(sense_handle);
7238 }
7239
7240 /*
7241 * Set the sync_cmd flag so that the ISR knows not to complete this
7242 * cmd to the SCSI mid-layer
7243 */
7244 cmd->sync_cmd = 1;
7245 if (megasas_issue_blocked_cmd(instance, cmd, 0) == DCMD_NOT_FIRED) {
7246 cmd->sync_cmd = 0;
7247 dev_err(&instance->pdev->dev,
7248 "return -EBUSY from %s %d cmd 0x%x opcode 0x%x cmd->cmd_status_drv 0x%x\n",
7249 __func__, __LINE__, cmd->frame->hdr.cmd, opcode,
7250 cmd->cmd_status_drv);
7251 return -EBUSY;
7252 }
7253
7254 cmd->sync_cmd = 0;
7255
7256 if (instance->unload == 1) {
7257 dev_info(&instance->pdev->dev, "Driver unload is in progress "
7258 "don't submit data to application\n");
7259 goto out;
7260 }
7261 /*
7262 * copy out the kernel buffers to user buffers
7263 */
7264 for (i = 0; i < ioc->sge_count; i++) {
7265 if (copy_to_user(ioc->sgl[i].iov_base, kbuff_arr[i],
7266 ioc->sgl[i].iov_len)) {
7267 error = -EFAULT;
7268 goto out;
7269 }
7270 }
7271
7272 /*
7273 * copy out the sense
7274 */
7275 if (ioc->sense_len) {
7276 /*
7277 * sense_ptr points to the location that has the user
7278 * sense buffer address
7279 */
7280 sense_ptr = (unsigned long *) ((unsigned long)ioc->frame.raw +
7281 ioc->sense_off);
7282
7283 if (copy_to_user((void __user *)((unsigned long)
7284 get_unaligned((unsigned long *)sense_ptr)),
7285 sense, ioc->sense_len)) {
7286 dev_err(&instance->pdev->dev, "Failed to copy out to user "
7287 "sense data\n");
7288 error = -EFAULT;
7289 goto out;
7290 }
7291 }
7292
7293 /*
7294 * copy the status codes returned by the fw
7295 */
7296 if (copy_to_user(&user_ioc->frame.hdr.cmd_status,
7297 &cmd->frame->hdr.cmd_status, sizeof(u8))) {
7298 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Error copying out cmd_status\n");
7299 error = -EFAULT;
7300 }
7301
7302 out:
7303 if (sense) {
7304 dma_free_coherent(&instance->pdev->dev, ioc->sense_len,
7305 sense, sense_handle);
7306 }
7307
7308 for (i = 0; i < ioc->sge_count; i++) {
7309 if (kbuff_arr[i]) {
7310 if (instance->consistent_mask_64bit)
7311 dma_free_coherent(&instance->pdev->dev,
7312 le32_to_cpu(kern_sge64[i].length),
7313 kbuff_arr[i],
7314 le64_to_cpu(kern_sge64[i].phys_addr));
7315 else
7316 dma_free_coherent(&instance->pdev->dev,
7317 le32_to_cpu(kern_sge32[i].length),
7318 kbuff_arr[i],
7319 le32_to_cpu(kern_sge32[i].phys_addr));
7320 kbuff_arr[i] = NULL;
7321 }
7322 }
7323
7324 megasas_return_cmd(instance, cmd);
7325 return error;
7326 }
7327
7328 static int megasas_mgmt_ioctl_fw(struct file *file, unsigned long arg)
7329 {
7330 struct megasas_iocpacket __user *user_ioc =
7331 (struct megasas_iocpacket __user *)arg;
7332 struct megasas_iocpacket *ioc;
7333 struct megasas_instance *instance;
7334 int error;
7335
7336 ioc = memdup_user(user_ioc, sizeof(*ioc));
7337 if (IS_ERR(ioc))
7338 return PTR_ERR(ioc);
7339
7340 instance = megasas_lookup_instance(ioc->host_no);
7341 if (!instance) {
7342 error = -ENODEV;
7343 goto out_kfree_ioc;
7344 }
7345
7346 /* Block ioctls in VF mode */
7347 if (instance->requestorId && !allow_vf_ioctls) {
7348 error = -ENODEV;
7349 goto out_kfree_ioc;
7350 }
7351
7352 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
7353 dev_err(&instance->pdev->dev, "Controller in crit error\n");
7354 error = -ENODEV;
7355 goto out_kfree_ioc;
7356 }
7357
7358 if (instance->unload == 1) {
7359 error = -ENODEV;
7360 goto out_kfree_ioc;
7361 }
7362
7363 if (down_interruptible(&instance->ioctl_sem)) {
7364 error = -ERESTARTSYS;
7365 goto out_kfree_ioc;
7366 }
7367
7368 if (megasas_wait_for_adapter_operational(instance)) {
7369 error = -ENODEV;
7370 goto out_up;
7371 }
7372
7373 error = megasas_mgmt_fw_ioctl(instance, user_ioc, ioc);
7374 out_up:
7375 up(&instance->ioctl_sem);
7376
7377 out_kfree_ioc:
7378 kfree(ioc);
7379 return error;
7380 }
7381
7382 static int megasas_mgmt_ioctl_aen(struct file *file, unsigned long arg)
7383 {
7384 struct megasas_instance *instance;
7385 struct megasas_aen aen;
7386 int error;
7387
7388 if (file->private_data != file) {
7389 printk(KERN_DEBUG "megasas: fasync_helper was not "
7390 "called first\n");
7391 return -EINVAL;
7392 }
7393
7394 if (copy_from_user(&aen, (void __user *)arg, sizeof(aen)))
7395 return -EFAULT;
7396
7397 instance = megasas_lookup_instance(aen.host_no);
7398
7399 if (!instance)
7400 return -ENODEV;
7401
7402 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {
7403 return -ENODEV;
7404 }
7405
7406 if (instance->unload == 1) {
7407 return -ENODEV;
7408 }
7409
7410 if (megasas_wait_for_adapter_operational(instance))
7411 return -ENODEV;
7412
7413 mutex_lock(&instance->reset_mutex);
7414 error = megasas_register_aen(instance, aen.seq_num,
7415 aen.class_locale_word);
7416 mutex_unlock(&instance->reset_mutex);
7417 return error;
7418 }
7419
7420 /**
7421 * megasas_mgmt_ioctl - char node ioctl entry point
7422 */
7423 static long
7424 megasas_mgmt_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
7425 {
7426 switch (cmd) {
7427 case MEGASAS_IOC_FIRMWARE:
7428 return megasas_mgmt_ioctl_fw(file, arg);
7429
7430 case MEGASAS_IOC_GET_AEN:
7431 return megasas_mgmt_ioctl_aen(file, arg);
7432 }
7433
7434 return -ENOTTY;
7435 }
7436
7437 #ifdef CONFIG_COMPAT
7438 static int megasas_mgmt_compat_ioctl_fw(struct file *file, unsigned long arg)
7439 {
7440 struct compat_megasas_iocpacket __user *cioc =
7441 (struct compat_megasas_iocpacket __user *)arg;
7442 struct megasas_iocpacket __user *ioc =
7443 compat_alloc_user_space(sizeof(struct megasas_iocpacket));
7444 int i;
7445 int error = 0;
7446 compat_uptr_t ptr;
7447 u32 local_sense_off;
7448 u32 local_sense_len;
7449 u32 user_sense_off;
7450
7451 if (clear_user(ioc, sizeof(*ioc)))
7452 return -EFAULT;
7453
7454 if (copy_in_user(&ioc->host_no, &cioc->host_no, sizeof(u16)) ||
7455 copy_in_user(&ioc->sgl_off, &cioc->sgl_off, sizeof(u32)) ||
7456 copy_in_user(&ioc->sense_off, &cioc->sense_off, sizeof(u32)) ||
7457 copy_in_user(&ioc->sense_len, &cioc->sense_len, sizeof(u32)) ||
7458 copy_in_user(ioc->frame.raw, cioc->frame.raw, 128) ||
7459 copy_in_user(&ioc->sge_count, &cioc->sge_count, sizeof(u32)))
7460 return -EFAULT;
7461
7462 /*
7463 * The sense_ptr is used in megasas_mgmt_fw_ioctl only when
7464 * sense_len is not null, so prepare the 64bit value under
7465 * the same condition.
7466 */
7467 if (get_user(local_sense_off, &ioc->sense_off) ||
7468 get_user(local_sense_len, &ioc->sense_len) ||
7469 get_user(user_sense_off, &cioc->sense_off))
7470 return -EFAULT;
7471
7472 if (local_sense_len) {
7473 void __user **sense_ioc_ptr =
7474 (void __user **)((u8 *)((unsigned long)&ioc->frame.raw) + local_sense_off);
7475 compat_uptr_t *sense_cioc_ptr =
7476 (compat_uptr_t *)(((unsigned long)&cioc->frame.raw) + user_sense_off);
7477 if (get_user(ptr, sense_cioc_ptr) ||
7478 put_user(compat_ptr(ptr), sense_ioc_ptr))
7479 return -EFAULT;
7480 }
7481
7482 for (i = 0; i < MAX_IOCTL_SGE; i++) {
7483 if (get_user(ptr, &cioc->sgl[i].iov_base) ||
7484 put_user(compat_ptr(ptr), &ioc->sgl[i].iov_base) ||
7485 copy_in_user(&ioc->sgl[i].iov_len,
7486 &cioc->sgl[i].iov_len, sizeof(compat_size_t)))
7487 return -EFAULT;
7488 }
7489
7490 error = megasas_mgmt_ioctl_fw(file, (unsigned long)ioc);
7491
7492 if (copy_in_user(&cioc->frame.hdr.cmd_status,
7493 &ioc->frame.hdr.cmd_status, sizeof(u8))) {
7494 printk(KERN_DEBUG "megasas: error copy_in_user cmd_status\n");
7495 return -EFAULT;
7496 }
7497 return error;
7498 }
7499
7500 static long
7501 megasas_mgmt_compat_ioctl(struct file *file, unsigned int cmd,
7502 unsigned long arg)
7503 {
7504 switch (cmd) {
7505 case MEGASAS_IOC_FIRMWARE32:
7506 return megasas_mgmt_compat_ioctl_fw(file, arg);
7507 case MEGASAS_IOC_GET_AEN:
7508 return megasas_mgmt_ioctl_aen(file, arg);
7509 }
7510
7511 return -ENOTTY;
7512 }
7513 #endif
7514
7515 /*
7516 * File operations structure for management interface
7517 */
7518 static const struct file_operations megasas_mgmt_fops = {
7519 .owner = THIS_MODULE,
7520 .open = megasas_mgmt_open,
7521 .fasync = megasas_mgmt_fasync,
7522 .unlocked_ioctl = megasas_mgmt_ioctl,
7523 .poll = megasas_mgmt_poll,
7524 #ifdef CONFIG_COMPAT
7525 .compat_ioctl = megasas_mgmt_compat_ioctl,
7526 #endif
7527 .llseek = noop_llseek,
7528 };
7529
7530 /*
7531 * PCI hotplug support registration structure
7532 */
7533 static struct pci_driver megasas_pci_driver = {
7534
7535 .name = "megaraid_sas",
7536 .id_table = megasas_pci_table,
7537 .probe = megasas_probe_one,
7538 .remove = megasas_detach_one,
7539 .suspend = megasas_suspend,
7540 .resume = megasas_resume,
7541 .shutdown = megasas_shutdown,
7542 };
7543
7544 /*
7545 * Sysfs driver attributes
7546 */
7547 static ssize_t version_show(struct device_driver *dd, char *buf)
7548 {
7549 return snprintf(buf, strlen(MEGASAS_VERSION) + 2, "%s\n",
7550 MEGASAS_VERSION);
7551 }
7552 static DRIVER_ATTR_RO(version);
7553
7554 static ssize_t release_date_show(struct device_driver *dd, char *buf)
7555 {
7556 return snprintf(buf, strlen(MEGASAS_RELDATE) + 2, "%s\n",
7557 MEGASAS_RELDATE);
7558 }
7559 static DRIVER_ATTR_RO(release_date);
7560
7561 static ssize_t support_poll_for_event_show(struct device_driver *dd, char *buf)
7562 {
7563 return sprintf(buf, "%u\n", support_poll_for_event);
7564 }
7565 static DRIVER_ATTR_RO(support_poll_for_event);
7566
7567 static ssize_t support_device_change_show(struct device_driver *dd, char *buf)
7568 {
7569 return sprintf(buf, "%u\n", support_device_change);
7570 }
7571 static DRIVER_ATTR_RO(support_device_change);
7572
7573 static ssize_t dbg_lvl_show(struct device_driver *dd, char *buf)
7574 {
7575 return sprintf(buf, "%u\n", megasas_dbg_lvl);
7576 }
7577
7578 static ssize_t dbg_lvl_store(struct device_driver *dd, const char *buf,
7579 size_t count)
7580 {
7581 int retval = count;
7582
7583 if (sscanf(buf, "%u", &megasas_dbg_lvl) < 1) {
7584 printk(KERN_ERR "megasas: could not set dbg_lvl\n");
7585 retval = -EINVAL;
7586 }
7587 return retval;
7588 }
7589 static DRIVER_ATTR_RW(dbg_lvl);
7590
7591 static ssize_t
7592 support_nvme_encapsulation_show(struct device_driver *dd, char *buf)
7593 {
7594 return sprintf(buf, "%u\n", support_nvme_encapsulation);
7595 }
7596
7597 static DRIVER_ATTR_RO(support_nvme_encapsulation);
7598
7599 static inline void megasas_remove_scsi_device(struct scsi_device *sdev)
7600 {
7601 sdev_printk(KERN_INFO, sdev, "SCSI device is removed\n");
7602 scsi_remove_device(sdev);
7603 scsi_device_put(sdev);
7604 }
7605
7606 static void
7607 megasas_aen_polling(struct work_struct *work)
7608 {
7609 struct megasas_aen_event *ev =
7610 container_of(work, struct megasas_aen_event, hotplug_work.work);
7611 struct megasas_instance *instance = ev->instance;
7612 union megasas_evt_class_locale class_locale;
7613 struct Scsi_Host *host;
7614 struct scsi_device *sdev1;
7615 u16 pd_index = 0;
7616 u16 ld_index = 0;
7617 int i, j, doscan = 0;
7618 u32 seq_num, wait_time = MEGASAS_RESET_WAIT_TIME;
7619 int error;
7620 u8 dcmd_ret = DCMD_SUCCESS;
7621
7622 if (!instance) {
7623 printk(KERN_ERR "invalid instance!\n");
7624 kfree(ev);
7625 return;
7626 }
7627
7628 /* Adjust event workqueue thread wait time for VF mode */
7629 if (instance->requestorId)
7630 wait_time = MEGASAS_ROUTINE_WAIT_TIME_VF;
7631
7632 /* Don't run the event workqueue thread if OCR is running */
7633 mutex_lock(&instance->reset_mutex);
7634
7635 instance->ev = NULL;
7636 host = instance->host;
7637 if (instance->evt_detail) {
7638 megasas_decode_evt(instance);
7639
7640 switch (le32_to_cpu(instance->evt_detail->code)) {
7641
7642 case MR_EVT_PD_INSERTED:
7643 case MR_EVT_PD_REMOVED:
7644 dcmd_ret = megasas_get_pd_list(instance);
7645 if (dcmd_ret == DCMD_SUCCESS)
7646 doscan = SCAN_PD_CHANNEL;
7647 break;
7648
7649 case MR_EVT_LD_OFFLINE:
7650 case MR_EVT_CFG_CLEARED:
7651 case MR_EVT_LD_DELETED:
7652 case MR_EVT_LD_CREATED:
7653 if (!instance->requestorId ||
7654 (instance->requestorId && megasas_get_ld_vf_affiliation(instance, 0)))
7655 dcmd_ret = megasas_ld_list_query(instance, MR_LD_QUERY_TYPE_EXPOSED_TO_HOST);
7656
7657 if (dcmd_ret == DCMD_SUCCESS)
7658 doscan = SCAN_VD_CHANNEL;
7659
7660 break;
7661
7662 case MR_EVT_CTRL_HOST_BUS_SCAN_REQUESTED:
7663 case MR_EVT_FOREIGN_CFG_IMPORTED:
7664 case MR_EVT_LD_STATE_CHANGE:
7665 dcmd_ret = megasas_get_pd_list(instance);
7666
7667 if (dcmd_ret != DCMD_SUCCESS)
7668 break;
7669
7670 if (!instance->requestorId ||
7671 (instance->requestorId && megasas_get_ld_vf_affiliation(instance, 0)))
7672 dcmd_ret = megasas_ld_list_query(instance, MR_LD_QUERY_TYPE_EXPOSED_TO_HOST);
7673
7674 if (dcmd_ret != DCMD_SUCCESS)
7675 break;
7676
7677 doscan = SCAN_VD_CHANNEL | SCAN_PD_CHANNEL;
7678 dev_info(&instance->pdev->dev, "scanning for scsi%d...\n",
7679 instance->host->host_no);
7680 break;
7681
7682 case MR_EVT_CTRL_PROP_CHANGED:
7683 dcmd_ret = megasas_get_ctrl_info(instance);
7684 break;
7685 default:
7686 doscan = 0;
7687 break;
7688 }
7689 } else {
7690 dev_err(&instance->pdev->dev, "invalid evt_detail!\n");
7691 mutex_unlock(&instance->reset_mutex);
7692 kfree(ev);
7693 return;
7694 }
7695
7696 mutex_unlock(&instance->reset_mutex);
7697
7698 if (doscan & SCAN_PD_CHANNEL) {
7699 for (i = 0; i < MEGASAS_MAX_PD_CHANNELS; i++) {
7700 for (j = 0; j < MEGASAS_MAX_DEV_PER_CHANNEL; j++) {
7701 pd_index = i*MEGASAS_MAX_DEV_PER_CHANNEL + j;
7702 sdev1 = scsi_device_lookup(host, i, j, 0);
7703 if (instance->pd_list[pd_index].driveState ==
7704 MR_PD_STATE_SYSTEM) {
7705 if (!sdev1)
7706 scsi_add_device(host, i, j, 0);
7707 else
7708 scsi_device_put(sdev1);
7709 } else {
7710 if (sdev1)
7711 megasas_remove_scsi_device(sdev1);
7712 }
7713 }
7714 }
7715 }
7716
7717 if (doscan & SCAN_VD_CHANNEL) {
7718 for (i = 0; i < MEGASAS_MAX_LD_CHANNELS; i++) {
7719 for (j = 0; j < MEGASAS_MAX_DEV_PER_CHANNEL; j++) {
7720 ld_index = (i * MEGASAS_MAX_DEV_PER_CHANNEL) + j;
7721 sdev1 = scsi_device_lookup(host, MEGASAS_MAX_PD_CHANNELS + i, j, 0);
7722 if (instance->ld_ids[ld_index] != 0xff) {
7723 if (!sdev1)
7724 scsi_add_device(host, MEGASAS_MAX_PD_CHANNELS + i, j, 0);
7725 else
7726 scsi_device_put(sdev1);
7727 } else {
7728 if (sdev1)
7729 megasas_remove_scsi_device(sdev1);
7730 }
7731 }
7732 }
7733 }
7734
7735 if (dcmd_ret == DCMD_SUCCESS)
7736 seq_num = le32_to_cpu(instance->evt_detail->seq_num) + 1;
7737 else
7738 seq_num = instance->last_seq_num;
7739
7740 /* Register AEN with FW for latest sequence number plus 1 */
7741 class_locale.members.reserved = 0;
7742 class_locale.members.locale = MR_EVT_LOCALE_ALL;
7743 class_locale.members.class = MR_EVT_CLASS_DEBUG;
7744
7745 if (instance->aen_cmd != NULL) {
7746 kfree(ev);
7747 return;
7748 }
7749
7750 mutex_lock(&instance->reset_mutex);
7751 error = megasas_register_aen(instance, seq_num,
7752 class_locale.word);
7753 if (error)
7754 dev_err(&instance->pdev->dev,
7755 "register aen failed error %x\n", error);
7756
7757 mutex_unlock(&instance->reset_mutex);
7758 kfree(ev);
7759 }
7760
7761 /**
7762 * megasas_init - Driver load entry point
7763 */
7764 static int __init megasas_init(void)
7765 {
7766 int rval;
7767
7768 /*
7769 * Booted in kdump kernel, minimize memory footprints by
7770 * disabling few features
7771 */
7772 if (reset_devices) {
7773 msix_vectors = 1;
7774 rdpq_enable = 0;
7775 dual_qdepth_disable = 1;
7776 }
7777
7778 /*
7779 * Announce driver version and other information
7780 */
7781 pr_info("megasas: %s\n", MEGASAS_VERSION);
7782
7783 spin_lock_init(&poll_aen_lock);
7784
7785 support_poll_for_event = 2;
7786 support_device_change = 1;
7787 support_nvme_encapsulation = true;
7788
7789 memset(&megasas_mgmt_info, 0, sizeof(megasas_mgmt_info));
7790
7791 /*
7792 * Register character device node
7793 */
7794 rval = register_chrdev(0, "megaraid_sas_ioctl", &megasas_mgmt_fops);
7795
7796 if (rval < 0) {
7797 printk(KERN_DEBUG "megasas: failed to open device node\n");
7798 return rval;
7799 }
7800
7801 megasas_mgmt_majorno = rval;
7802
7803 /*
7804 * Register ourselves as PCI hotplug module
7805 */
7806 rval = pci_register_driver(&megasas_pci_driver);
7807
7808 if (rval) {
7809 printk(KERN_DEBUG "megasas: PCI hotplug registration failed \n");
7810 goto err_pcidrv;
7811 }
7812
7813 rval = driver_create_file(&megasas_pci_driver.driver,
7814 &driver_attr_version);
7815 if (rval)
7816 goto err_dcf_attr_ver;
7817
7818 rval = driver_create_file(&megasas_pci_driver.driver,
7819 &driver_attr_release_date);
7820 if (rval)
7821 goto err_dcf_rel_date;
7822
7823 rval = driver_create_file(&megasas_pci_driver.driver,
7824 &driver_attr_support_poll_for_event);
7825 if (rval)
7826 goto err_dcf_support_poll_for_event;
7827
7828 rval = driver_create_file(&megasas_pci_driver.driver,
7829 &driver_attr_dbg_lvl);
7830 if (rval)
7831 goto err_dcf_dbg_lvl;
7832 rval = driver_create_file(&megasas_pci_driver.driver,
7833 &driver_attr_support_device_change);
7834 if (rval)
7835 goto err_dcf_support_device_change;
7836
7837 rval = driver_create_file(&megasas_pci_driver.driver,
7838 &driver_attr_support_nvme_encapsulation);
7839 if (rval)
7840 goto err_dcf_support_nvme_encapsulation;
7841
7842 return rval;
7843
7844 err_dcf_support_nvme_encapsulation:
7845 driver_remove_file(&megasas_pci_driver.driver,
7846 &driver_attr_support_device_change);
7847
7848 err_dcf_support_device_change:
7849 driver_remove_file(&megasas_pci_driver.driver,
7850 &driver_attr_dbg_lvl);
7851 err_dcf_dbg_lvl:
7852 driver_remove_file(&megasas_pci_driver.driver,
7853 &driver_attr_support_poll_for_event);
7854 err_dcf_support_poll_for_event:
7855 driver_remove_file(&megasas_pci_driver.driver,
7856 &driver_attr_release_date);
7857 err_dcf_rel_date:
7858 driver_remove_file(&megasas_pci_driver.driver, &driver_attr_version);
7859 err_dcf_attr_ver:
7860 pci_unregister_driver(&megasas_pci_driver);
7861 err_pcidrv:
7862 unregister_chrdev(megasas_mgmt_majorno, "megaraid_sas_ioctl");
7863 return rval;
7864 }
7865
7866 /**
7867 * megasas_exit - Driver unload entry point
7868 */
7869 static void __exit megasas_exit(void)
7870 {
7871 driver_remove_file(&megasas_pci_driver.driver,
7872 &driver_attr_dbg_lvl);
7873 driver_remove_file(&megasas_pci_driver.driver,
7874 &driver_attr_support_poll_for_event);
7875 driver_remove_file(&megasas_pci_driver.driver,
7876 &driver_attr_support_device_change);
7877 driver_remove_file(&megasas_pci_driver.driver,
7878 &driver_attr_release_date);
7879 driver_remove_file(&megasas_pci_driver.driver, &driver_attr_version);
7880 driver_remove_file(&megasas_pci_driver.driver,
7881 &driver_attr_support_nvme_encapsulation);
7882
7883 pci_unregister_driver(&megasas_pci_driver);
7884 unregister_chrdev(megasas_mgmt_majorno, "megaraid_sas_ioctl");
7885 }
7886
7887 module_init(megasas_init);
7888 module_exit(megasas_exit);
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