projects / deliverable / linux.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
megaraid_sas: Fix validHandles check in I/O path
[deliverable/linux.git] / drivers / scsi / megaraid / megaraid_sas_base.c
CommitLineData
c4a3e0a5 1/*
3f1530c1 2 * Linux MegaRAID driver for SAS based RAID controllers
c4a3e0a5 3 *
e399065b
SS		 4 * Copyright (c) 2003-2013 LSI Corporation
5 * Copyright (c) 2013-2014 Avago Technologies
c4a3e0a5 6 *
3f1530c1 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.
c4a3e0a5 11 *
3f1530c1 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.
c4a3e0a5 16 *
3f1530c1 17 * You should have received a copy of the GNU General Public License
e399065b 18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
c4a3e0a5 19 *
e399065b 20 * Authors: Avago Technologies
3f1530c1 21 * Sreenivas Bagalkote
22 * Sumant Patro
23 * Bo Yang
e399065b
SS		 24 * Adam Radford
25 * Kashyap Desai <kashyap.desai@avagotech.com>
26 * Sumit Saxena <sumit.saxena@avagotech.com>
c4a3e0a5 27 *
e399065b 28 * Send feedback to: megaraidlinux.pdl@avagotech.com
3f1530c1 29 *
e399065b
SS		 30 * Mail to: Avago Technologies, 350 West Trimble Road, Building 90,
31 * San Jose, California 95131
c4a3e0a5
BS		 32 */
33
34#include <linux/kernel.h>
35#include <linux/types.h>
36#include <linux/pci.h>
37#include <linux/list.h>
c4a3e0a5
BS		 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>
5a0e3ad6 44#include <linux/slab.h>
c4a3e0a5 45#include <asm/uaccess.h>
43399236 46#include <linux/fs.h>
c4a3e0a5 47#include <linux/compat.h>
cf62a0a5 48#include <linux/blkdev.h>
0b950672 49#include <linux/mutex.h>
c3518837 50#include <linux/poll.h>
c4a3e0a5
BS		 51
52#include <scsi/scsi.h>
53#include <scsi/scsi_cmnd.h>
54#include <scsi/scsi_device.h>
55#include <scsi/scsi_host.h>
4bcde509 56#include <scsi/scsi_tcq.h>
9c915a8c 57#include "megaraid_sas_fusion.h"
c4a3e0a5
BS		 58#include "megaraid_sas.h"
59
1fd10685
YB		 60/*
61 * Number of sectors per IO command
62 * Will be set in megasas_init_mfi if user does not provide
63 */
64static unsigned int max_sectors;
65module_param_named(max_sectors, max_sectors, int, 0);
66MODULE_PARM_DESC(max_sectors,
67 "Maximum number of sectors per IO command");
68
80d9da98 69static int msix_disable;
70module_param(msix_disable, int, S_IRUGO);
71MODULE_PARM_DESC(msix_disable, "Disable MSI-X interrupt handling. Default: 0");
72
079eaddf 73static unsigned int msix_vectors;
74module_param(msix_vectors, int, S_IRUGO);
75MODULE_PARM_DESC(msix_vectors, "MSI-X max vector count. Default: Set by FW");
76
229fe47c 77static int allow_vf_ioctls;
78module_param(allow_vf_ioctls, int, S_IRUGO);
79MODULE_PARM_DESC(allow_vf_ioctls, "Allow ioctls in SR-IOV VF mode. Default: 0");
80
ae09a6c1 81static unsigned int throttlequeuedepth = MEGASAS_THROTTLE_QUEUE_DEPTH;
c5daa6a9 82module_param(throttlequeuedepth, int, S_IRUGO);
83MODULE_PARM_DESC(throttlequeuedepth,
84 "Adapter queue depth when throttled due to I/O timeout. Default: 16");
85
c007b8b2 86int resetwaittime = MEGASAS_RESET_WAIT_TIME;
87module_param(resetwaittime, int, S_IRUGO);
88MODULE_PARM_DESC(resetwaittime, "Wait time in seconds after I/O timeout "
89 "before resetting adapter. Default: 180");
90
ac95136a
SS		 91int smp_affinity_enable = 1;
92module_param(smp_affinity_enable, int, S_IRUGO);
93MODULE_PARM_DESC(smp_affinity_enable, "SMP affinity feature enable/disbale Default: enable(1)");
94
c4a3e0a5
BS		 95MODULE_LICENSE("GPL");
96MODULE_VERSION(MEGASAS_VERSION);
43cd7fe4
SS		 97MODULE_AUTHOR("megaraidlinux.pdl@avagotech.com");
98MODULE_DESCRIPTION("Avago MegaRAID SAS Driver");
c4a3e0a5 99
058a8fac 100int megasas_transition_to_ready(struct megasas_instance *instance, int ocr);
39a98554 101static int megasas_get_pd_list(struct megasas_instance *instance);
21c9e160 102static int megasas_ld_list_query(struct megasas_instance *instance,
103 u8 query_type);
39a98554 104static int megasas_issue_init_mfi(struct megasas_instance *instance);
105static int megasas_register_aen(struct megasas_instance *instance,
106 u32 seq_num, u32 class_locale_word);
c4a3e0a5
BS		 107/*
108 * PCI ID table for all supported controllers
109 */
110static struct pci_device_id megasas_pci_table[] = {
111
f3d7271c
HK		 112 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1064R)},
113 /* xscale IOP */
114 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078R)},
115 /* ppc IOP */
af7a5647 116 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078DE)},
117 /* ppc IOP */
6610a6b3
YB		 118 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078GEN2)},
119 /* gen2*/
120 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0079GEN2)},
121 /* gen2*/
87911122
YB		 122 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0073SKINNY)},
123 /* skinny*/
124 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0071SKINNY)},
125 /* skinny*/
f3d7271c
HK		 126 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_VERDE_ZCR)},
127 /* xscale IOP, vega */
128 {PCI_DEVICE(PCI_VENDOR_ID_DELL, PCI_DEVICE_ID_DELL_PERC5)},
129 /* xscale IOP */
9c915a8c 130 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FUSION)},
131 /* Fusion */
229fe47c 132 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_PLASMA)},
133 /* Plasma */
36807e67 134 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_INVADER)},
135 /* Invader */
21d3c710
SS		 136 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FURY)},
137 /* Fury */
f3d7271c 138 {}
c4a3e0a5
BS		 139};
140
141MODULE_DEVICE_TABLE(pci, megasas_pci_table);
142
143static int megasas_mgmt_majorno;
229fe47c 144struct megasas_mgmt_info megasas_mgmt_info;
c4a3e0a5 145static struct fasync_struct *megasas_async_queue;
0b950672 146static DEFINE_MUTEX(megasas_async_queue_mutex);
c4a3e0a5 147
c3518837
YB		 148static int megasas_poll_wait_aen;
149static DECLARE_WAIT_QUEUE_HEAD(megasas_poll_wait);
72c4fd36 150static u32 support_poll_for_event;
9c915a8c 151u32 megasas_dbg_lvl;
837f5fe8 152static u32 support_device_change;
658dcedb 153
c3518837
YB		 154/* define lock for aen poll */
155spinlock_t poll_aen_lock;
156
9c915a8c 157void
7343eb65 158megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd,
159 u8 alt_status);
ebf054b0 160static u32
161megasas_read_fw_status_reg_gen2(struct megasas_register_set __iomem *regs);
162static int
163megasas_adp_reset_gen2(struct megasas_instance *instance,
164 struct megasas_register_set __iomem *reg_set);
cd50ba8e 165static irqreturn_t megasas_isr(int irq, void *devp);
166static u32
167megasas_init_adapter_mfi(struct megasas_instance *instance);
168u32
169megasas_build_and_issue_cmd(struct megasas_instance *instance,
170 struct scsi_cmnd *scmd);
171static void megasas_complete_cmd_dpc(unsigned long instance_addr);
9c915a8c 172void
173megasas_release_fusion(struct megasas_instance *instance);
174int
175megasas_ioc_init_fusion(struct megasas_instance *instance);
176void
177megasas_free_cmds_fusion(struct megasas_instance *instance);
178u8
179megasas_get_map_info(struct megasas_instance *instance);
180int
181megasas_sync_map_info(struct megasas_instance *instance);
182int
229fe47c 183wait_and_poll(struct megasas_instance *instance, struct megasas_cmd *cmd,
184 int seconds);
9c915a8c 185void megasas_reset_reply_desc(struct megasas_instance *instance);
229fe47c 186int megasas_reset_fusion(struct Scsi_Host *shost, int iotimeout);
9c915a8c 187void megasas_fusion_ocr_wq(struct work_struct *work);
229fe47c 188static int megasas_get_ld_vf_affiliation(struct megasas_instance *instance,
189 int initial);
190int megasas_check_mpio_paths(struct megasas_instance *instance,
191 struct scsi_cmnd *scmd);
cd50ba8e 192
193void
194megasas_issue_dcmd(struct megasas_instance *instance, struct megasas_cmd *cmd)
195{
196 instance->instancet->fire_cmd(instance,
197 cmd->frame_phys_addr, 0, instance->reg_set);
198}
7343eb65 199
c4a3e0a5
BS		 200/**
201 * megasas_get_cmd - Get a command from the free pool
202 * @instance: Adapter soft state
203 *
204 * Returns a free command from the pool
205 */
9c915a8c 206struct megasas_cmd *megasas_get_cmd(struct megasas_instance
c4a3e0a5
BS		 207 *instance)
208{
209 unsigned long flags;
210 struct megasas_cmd *cmd = NULL;
211
90dc9d98 212 spin_lock_irqsave(&instance->mfi_pool_lock, flags);
c4a3e0a5
BS		 213
214 if (!list_empty(&instance->cmd_pool)) {
215 cmd = list_entry((&instance->cmd_pool)->next,
216 struct megasas_cmd, list);
217 list_del_init(&cmd->list);
218 } else {
1be18254 219 dev_err(&instance->pdev->dev, "Command pool empty!\n");
c4a3e0a5
BS		 220 }
221
90dc9d98 222 spin_unlock_irqrestore(&instance->mfi_pool_lock, flags);
c4a3e0a5
BS		 223 return cmd;
224}
225
226/**
4026e9aa 227 * megasas_return_cmd - Return a cmd to free command pool
c4a3e0a5
BS		 228 * @instance: Adapter soft state
229 * @cmd: Command packet to be returned to free command pool
230 */
9c915a8c 231inline void
4026e9aa 232megasas_return_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd)
c4a3e0a5 233{
4026e9aa
SS		 234 unsigned long flags;
235 u32 blk_tags;
236 struct megasas_cmd_fusion *cmd_fusion;
237 struct fusion_context *fusion = instance->ctrl_context;
238
239 /* This flag is used only for fusion adapter.
240 * Wait for Interrupt for Polled mode DCMD
90dc9d98 241 */
4026e9aa 242 if (cmd->flags & DRV_DCMD_POLLED_MODE)
90dc9d98 243 return;
c4a3e0a5 244
4026e9aa
SS		 245 spin_lock_irqsave(&instance->mfi_pool_lock, flags);
246
247 if (fusion) {
248 blk_tags = instance->max_scsi_cmds + cmd->index;
249 cmd_fusion = fusion->cmd_list[blk_tags];
250 megasas_return_cmd_fusion(instance, cmd_fusion);
251 }
c4a3e0a5 252 cmd->scmd = NULL;
9c915a8c 253 cmd->frame_count = 0;
4026e9aa
SS		 254 cmd->flags = 0;
255 if (!fusion && reset_devices)
e5f93a36 256 cmd->frame->hdr.cmd = MFI_CMD_INVALID;
90dc9d98 257 list_add(&cmd->list, (&instance->cmd_pool)->next);
90dc9d98 258
90dc9d98 259 spin_unlock_irqrestore(&instance->mfi_pool_lock, flags);
c4a3e0a5 260
4026e9aa 261}
1341c939 262
714f5177 263static const char *
264format_timestamp(uint32_t timestamp)
265{
266 static char buffer[32];
267
268 if ((timestamp & 0xff000000) == 0xff000000)
269 snprintf(buffer, sizeof(buffer), "boot + %us", timestamp &
270 0x00ffffff);
271 else
272 snprintf(buffer, sizeof(buffer), "%us", timestamp);
273 return buffer;
274}
275
276static const char *
277format_class(int8_t class)
278{
279 static char buffer[6];
280
281 switch (class) {
282 case MFI_EVT_CLASS_DEBUG:
283 return "debug";
284 case MFI_EVT_CLASS_PROGRESS:
285 return "progress";
286 case MFI_EVT_CLASS_INFO:
287 return "info";
288 case MFI_EVT_CLASS_WARNING:
289 return "WARN";
290 case MFI_EVT_CLASS_CRITICAL:
291 return "CRIT";
292 case MFI_EVT_CLASS_FATAL:
293 return "FATAL";
294 case MFI_EVT_CLASS_DEAD:
295 return "DEAD";
296 default:
297 snprintf(buffer, sizeof(buffer), "%d", class);
298 return buffer;
299 }
300}
301
302/**
303 * megasas_decode_evt: Decode FW AEN event and print critical event
304 * for information.
305 * @instance: Adapter soft state
306 */
307static void
308megasas_decode_evt(struct megasas_instance *instance)
309{
310 struct megasas_evt_detail *evt_detail = instance->evt_detail;
311 union megasas_evt_class_locale class_locale;
312 class_locale.word = le32_to_cpu(evt_detail->cl.word);
313
314 if (class_locale.members.class >= MFI_EVT_CLASS_CRITICAL)
315 dev_info(&instance->pdev->dev, "%d (%s/0x%04x/%s) - %s\n",
316 le32_to_cpu(evt_detail->seq_num),
317 format_timestamp(le32_to_cpu(evt_detail->time_stamp)),
318 (class_locale.members.locale),
319 format_class(class_locale.members.class),
320 evt_detail->description);
321}
322
1341c939 323/**
0d49016b 324* The following functions are defined for xscale
1341c939
SP		 325* (deviceid : 1064R, PERC5) controllers
326*/
327
c4a3e0a5 328/**
1341c939 329 * megasas_enable_intr_xscale - Enables interrupts
c4a3e0a5
BS		 330 * @regs: MFI register set
331 */
332static inline void
d46a3ad6 333megasas_enable_intr_xscale(struct megasas_instance *instance)
c4a3e0a5 334{
d46a3ad6 335 struct megasas_register_set __iomem *regs;
da0dc9fb 336
d46a3ad6 337 regs = instance->reg_set;
39a98554 338 writel(0, &(regs)->outbound_intr_mask);
c4a3e0a5
BS		 339
340 /* Dummy readl to force pci flush */
341 readl(&regs->outbound_intr_mask);
342}
343
b274cab7
SP		 344/**
345 * megasas_disable_intr_xscale -Disables interrupt
346 * @regs: MFI register set
347 */
348static inline void
d46a3ad6 349megasas_disable_intr_xscale(struct megasas_instance *instance)
b274cab7 350{
d46a3ad6 351 struct megasas_register_set __iomem *regs;
b274cab7 352 u32 mask = 0x1f;
da0dc9fb 353
d46a3ad6 354 regs = instance->reg_set;
b274cab7
SP		 355 writel(mask, &regs->outbound_intr_mask);
356 /* Dummy readl to force pci flush */
357 readl(&regs->outbound_intr_mask);
358}
359
1341c939
SP		 360/**
361 * megasas_read_fw_status_reg_xscale - returns the current FW status value
362 * @regs: MFI register set
363 */
364static u32
365megasas_read_fw_status_reg_xscale(struct megasas_register_set __iomem * regs)
366{
367 return readl(&(regs)->outbound_msg_0);
368}
369/**
370 * megasas_clear_interrupt_xscale - Check & clear interrupt
371 * @regs: MFI register set
372 */
0d49016b 373static int
1341c939
SP		 374megasas_clear_intr_xscale(struct megasas_register_set __iomem * regs)
375{
376 u32 status;
39a98554 377 u32 mfiStatus = 0;
da0dc9fb 378
1341c939
SP		 379 /*
380 * Check if it is our interrupt
381 */
382 status = readl(&regs->outbound_intr_status);
383
39a98554 384 if (status & MFI_OB_INTR_STATUS_MASK)
385 mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE;
386 if (status & MFI_XSCALE_OMR0_CHANGE_INTERRUPT)
387 mfiStatus |= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE;
1341c939
SP		 388
389 /*
390 * Clear the interrupt by writing back the same value
391 */
39a98554 392 if (mfiStatus)
393 writel(status, &regs->outbound_intr_status);
1341c939 394
06f579de
YB		 395 /* Dummy readl to force pci flush */
396 readl(&regs->outbound_intr_status);
397
39a98554 398 return mfiStatus;
1341c939
SP		 399}
400
401/**
402 * megasas_fire_cmd_xscale - Sends command to the FW
403 * @frame_phys_addr : Physical address of cmd
404 * @frame_count : Number of frames for the command
405 * @regs : MFI register set
406 */
0d49016b 407static inline void
0c79e681
YB		 408megasas_fire_cmd_xscale(struct megasas_instance *instance,
409 dma_addr_t frame_phys_addr,
410 u32 frame_count,
411 struct megasas_register_set __iomem *regs)
1341c939 412{
39a98554 413 unsigned long flags;
da0dc9fb 414
39a98554 415 spin_lock_irqsave(&instance->hba_lock, flags);
1341c939
SP		 416 writel((frame_phys_addr >> 3)|(frame_count),
417 &(regs)->inbound_queue_port);
39a98554 418 spin_unlock_irqrestore(&instance->hba_lock, flags);
419}
420
421/**
422 * megasas_adp_reset_xscale - For controller reset
423 * @regs: MFI register set
424 */
425static int
426megasas_adp_reset_xscale(struct megasas_instance *instance,
427 struct megasas_register_set __iomem *regs)
428{
429 u32 i;
430 u32 pcidata;
da0dc9fb 431
39a98554 432 writel(MFI_ADP_RESET, &regs->inbound_doorbell);
433
434 for (i = 0; i < 3; i++)
435 msleep(1000); /* sleep for 3 secs */
436 pcidata = 0;
437 pci_read_config_dword(instance->pdev, MFI_1068_PCSR_OFFSET, &pcidata);
1be18254 438 dev_notice(&instance->pdev->dev, "pcidata = %x\n", pcidata);
39a98554 439 if (pcidata & 0x2) {
1be18254 440 dev_notice(&instance->pdev->dev, "mfi 1068 offset read=%x\n", pcidata);
39a98554 441 pcidata &= ~0x2;
442 pci_write_config_dword(instance->pdev,
443 MFI_1068_PCSR_OFFSET, pcidata);
444
445 for (i = 0; i < 2; i++)
446 msleep(1000); /* need to wait 2 secs again */
447
448 pcidata = 0;
449 pci_read_config_dword(instance->pdev,
450 MFI_1068_FW_HANDSHAKE_OFFSET, &pcidata);
1be18254 451 dev_notice(&instance->pdev->dev, "1068 offset handshake read=%x\n", pcidata);
39a98554 452 if ((pcidata & 0xffff0000) == MFI_1068_FW_READY) {
1be18254 453 dev_notice(&instance->pdev->dev, "1068 offset pcidt=%x\n", pcidata);
39a98554 454 pcidata = 0;
455 pci_write_config_dword(instance->pdev,
456 MFI_1068_FW_HANDSHAKE_OFFSET, pcidata);
457 }
458 }
459 return 0;
460}
461
462/**
463 * megasas_check_reset_xscale - For controller reset check
464 * @regs: MFI register set
465 */
466static int
467megasas_check_reset_xscale(struct megasas_instance *instance,
468 struct megasas_register_set __iomem *regs)
469{
39a98554 470 if ((instance->adprecovery != MEGASAS_HBA_OPERATIONAL) &&
94cd65dd
SS		 471 (le32_to_cpu(*instance->consumer) ==
472 MEGASAS_ADPRESET_INPROG_SIGN))
39a98554 473 return 1;
39a98554 474 return 0;
1341c939
SP		 475}
476
477static struct megasas_instance_template megasas_instance_template_xscale = {
478
479 .fire_cmd = megasas_fire_cmd_xscale,
480 .enable_intr = megasas_enable_intr_xscale,
b274cab7 481 .disable_intr = megasas_disable_intr_xscale,
1341c939
SP		 482 .clear_intr = megasas_clear_intr_xscale,
483 .read_fw_status_reg = megasas_read_fw_status_reg_xscale,
39a98554 484 .adp_reset = megasas_adp_reset_xscale,
485 .check_reset = megasas_check_reset_xscale,
cd50ba8e 486 .service_isr = megasas_isr,
487 .tasklet = megasas_complete_cmd_dpc,
488 .init_adapter = megasas_init_adapter_mfi,
489 .build_and_issue_cmd = megasas_build_and_issue_cmd,
490 .issue_dcmd = megasas_issue_dcmd,
1341c939
SP		 491};
492
493/**
0d49016b 494* This is the end of set of functions & definitions specific
1341c939
SP		 495* to xscale (deviceid : 1064R, PERC5) controllers
496*/
497
f9876f0b 498/**
0d49016b 499* The following functions are defined for ppc (deviceid : 0x60)
da0dc9fb 500* controllers
f9876f0b
SP		 501*/
502
503/**
504 * megasas_enable_intr_ppc - Enables interrupts
505 * @regs: MFI register set
506 */
507static inline void
d46a3ad6 508megasas_enable_intr_ppc(struct megasas_instance *instance)
f9876f0b 509{
d46a3ad6 510 struct megasas_register_set __iomem *regs;
da0dc9fb 511
d46a3ad6 512 regs = instance->reg_set;
f9876f0b 513 writel(0xFFFFFFFF, &(regs)->outbound_doorbell_clear);
0d49016b 514
39a98554 515 writel(~0x80000000, &(regs)->outbound_intr_mask);
f9876f0b
SP		 516
517 /* Dummy readl to force pci flush */
518 readl(&regs->outbound_intr_mask);
519}
520
b274cab7
SP		 521/**
522 * megasas_disable_intr_ppc - Disable interrupt
523 * @regs: MFI register set
524 */
525static inline void
d46a3ad6 526megasas_disable_intr_ppc(struct megasas_instance *instance)
b274cab7 527{
d46a3ad6 528 struct megasas_register_set __iomem *regs;
b274cab7 529 u32 mask = 0xFFFFFFFF;
da0dc9fb 530
d46a3ad6 531 regs = instance->reg_set;
b274cab7
SP		 532 writel(mask, &regs->outbound_intr_mask);
533 /* Dummy readl to force pci flush */
534 readl(&regs->outbound_intr_mask);
535}
536
f9876f0b
SP		 537/**
538 * megasas_read_fw_status_reg_ppc - returns the current FW status value
539 * @regs: MFI register set
540 */
541static u32
542megasas_read_fw_status_reg_ppc(struct megasas_register_set __iomem * regs)
543{
544 return readl(&(regs)->outbound_scratch_pad);
545}
546
547/**
548 * megasas_clear_interrupt_ppc - Check & clear interrupt
549 * @regs: MFI register set
550 */
0d49016b 551static int
f9876f0b
SP		 552megasas_clear_intr_ppc(struct megasas_register_set __iomem * regs)
553{
3cc6851f 554 u32 status, mfiStatus = 0;
555
f9876f0b
SP		 556 /*
557 * Check if it is our interrupt
558 */
559 status = readl(&regs->outbound_intr_status);
560
3cc6851f 561 if (status & MFI_REPLY_1078_MESSAGE_INTERRUPT)
562 mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE;
563
564 if (status & MFI_G2_OUTBOUND_DOORBELL_CHANGE_INTERRUPT)
565 mfiStatus |= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE;
f9876f0b
SP		 566
567 /*
568 * Clear the interrupt by writing back the same value
569 */
570 writel(status, &regs->outbound_doorbell_clear);
571
06f579de
YB		 572 /* Dummy readl to force pci flush */
573 readl(&regs->outbound_doorbell_clear);
574
3cc6851f 575 return mfiStatus;
f9876f0b 576}
3cc6851f 577
f9876f0b
SP		 578/**
579 * megasas_fire_cmd_ppc - Sends command to the FW
580 * @frame_phys_addr : Physical address of cmd
581 * @frame_count : Number of frames for the command
582 * @regs : MFI register set
583 */
0d49016b 584static inline void
0c79e681
YB		 585megasas_fire_cmd_ppc(struct megasas_instance *instance,
586 dma_addr_t frame_phys_addr,
587 u32 frame_count,
588 struct megasas_register_set __iomem *regs)
f9876f0b 589{
39a98554 590 unsigned long flags;
da0dc9fb 591
39a98554 592 spin_lock_irqsave(&instance->hba_lock, flags);
0d49016b 593 writel((frame_phys_addr | (frame_count<<1))|1,
f9876f0b 594 &(regs)->inbound_queue_port);
39a98554 595 spin_unlock_irqrestore(&instance->hba_lock, flags);
f9876f0b
SP		 596}
597
39a98554 598/**
599 * megasas_check_reset_ppc - For controller reset check
600 * @regs: MFI register set
601 */
602static int
603megasas_check_reset_ppc(struct megasas_instance *instance,
604 struct megasas_register_set __iomem *regs)
605{
3cc6851f 606 if (instance->adprecovery != MEGASAS_HBA_OPERATIONAL)
607 return 1;
608
39a98554 609 return 0;
610}
3cc6851f 611
f9876f0b 612static struct megasas_instance_template megasas_instance_template_ppc = {
0d49016b 613
f9876f0b
SP		 614 .fire_cmd = megasas_fire_cmd_ppc,
615 .enable_intr = megasas_enable_intr_ppc,
b274cab7 616 .disable_intr = megasas_disable_intr_ppc,
f9876f0b
SP		 617 .clear_intr = megasas_clear_intr_ppc,
618 .read_fw_status_reg = megasas_read_fw_status_reg_ppc,
3cc6851f 619 .adp_reset = megasas_adp_reset_xscale,
39a98554 620 .check_reset = megasas_check_reset_ppc,
cd50ba8e 621 .service_isr = megasas_isr,
622 .tasklet = megasas_complete_cmd_dpc,
623 .init_adapter = megasas_init_adapter_mfi,
624 .build_and_issue_cmd = megasas_build_and_issue_cmd,
625 .issue_dcmd = megasas_issue_dcmd,
f9876f0b
SP		 626};
627
87911122
YB		 628/**
629 * megasas_enable_intr_skinny - Enables interrupts
630 * @regs: MFI register set
631 */
632static inline void
d46a3ad6 633megasas_enable_intr_skinny(struct megasas_instance *instance)
87911122 634{
d46a3ad6 635 struct megasas_register_set __iomem *regs;
da0dc9fb 636
d46a3ad6 637 regs = instance->reg_set;
87911122
YB		 638 writel(0xFFFFFFFF, &(regs)->outbound_intr_mask);
639
640 writel(~MFI_SKINNY_ENABLE_INTERRUPT_MASK, &(regs)->outbound_intr_mask);
641
642 /* Dummy readl to force pci flush */
643 readl(&regs->outbound_intr_mask);
644}
645
646/**
647 * megasas_disable_intr_skinny - Disables interrupt
648 * @regs: MFI register set
649 */
650static inline void
d46a3ad6 651megasas_disable_intr_skinny(struct megasas_instance *instance)
87911122 652{
d46a3ad6 653 struct megasas_register_set __iomem *regs;
87911122 654 u32 mask = 0xFFFFFFFF;
da0dc9fb 655
d46a3ad6 656 regs = instance->reg_set;
87911122
YB		 657 writel(mask, &regs->outbound_intr_mask);
658 /* Dummy readl to force pci flush */
659 readl(&regs->outbound_intr_mask);
660}
661
662/**
663 * megasas_read_fw_status_reg_skinny - returns the current FW status value
664 * @regs: MFI register set
665 */
666static u32
667megasas_read_fw_status_reg_skinny(struct megasas_register_set __iomem *regs)
668{
669 return readl(&(regs)->outbound_scratch_pad);
670}
671
672/**
673 * megasas_clear_interrupt_skinny - Check & clear interrupt
674 * @regs: MFI register set
675 */
676static int
677megasas_clear_intr_skinny(struct megasas_register_set __iomem *regs)
678{
679 u32 status;
ebf054b0 680 u32 mfiStatus = 0;
681
87911122
YB		 682 /*
683 * Check if it is our interrupt
684 */
685 status = readl(&regs->outbound_intr_status);
686
687 if (!(status & MFI_SKINNY_ENABLE_INTERRUPT_MASK)) {
39a98554 688 return 0;
87911122
YB		 689 }
690
ebf054b0 691 /*
692 * Check if it is our interrupt
693 */
a3fda7dd 694 if ((megasas_read_fw_status_reg_skinny(regs) & MFI_STATE_MASK) ==
ebf054b0 695 MFI_STATE_FAULT) {
696 mfiStatus = MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE;
697 } else
698 mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE;
699
87911122
YB		 700 /*
701 * Clear the interrupt by writing back the same value
702 */
703 writel(status, &regs->outbound_intr_status);
704
705 /*
da0dc9fb
BH		 706 * dummy read to flush PCI
707 */
87911122
YB		 708 readl(&regs->outbound_intr_status);
709
ebf054b0 710 return mfiStatus;
87911122
YB		 711}
712
713/**
714 * megasas_fire_cmd_skinny - Sends command to the FW
715 * @frame_phys_addr : Physical address of cmd
716 * @frame_count : Number of frames for the command
717 * @regs : MFI register set
718 */
719static inline void
0c79e681
YB		 720megasas_fire_cmd_skinny(struct megasas_instance *instance,
721 dma_addr_t frame_phys_addr,
722 u32 frame_count,
87911122
YB		 723 struct megasas_register_set __iomem *regs)
724{
0c79e681 725 unsigned long flags;
da0dc9fb 726
39a98554 727 spin_lock_irqsave(&instance->hba_lock, flags);
94cd65dd
SS		 728 writel(upper_32_bits(frame_phys_addr),
729 &(regs)->inbound_high_queue_port);
730 writel((lower_32_bits(frame_phys_addr) | (frame_count<<1))|1,
731 &(regs)->inbound_low_queue_port);
39a98554 732 spin_unlock_irqrestore(&instance->hba_lock, flags);
733}
734
39a98554 735/**
736 * megasas_check_reset_skinny - For controller reset check
737 * @regs: MFI register set
738 */
739static int
740megasas_check_reset_skinny(struct megasas_instance *instance,
741 struct megasas_register_set __iomem *regs)
742{
3cc6851f 743 if (instance->adprecovery != MEGASAS_HBA_OPERATIONAL)
744 return 1;
745
39a98554 746 return 0;
87911122
YB		 747}
748
749static struct megasas_instance_template megasas_instance_template_skinny = {
750
751 .fire_cmd = megasas_fire_cmd_skinny,
752 .enable_intr = megasas_enable_intr_skinny,
753 .disable_intr = megasas_disable_intr_skinny,
754 .clear_intr = megasas_clear_intr_skinny,
755 .read_fw_status_reg = megasas_read_fw_status_reg_skinny,
ebf054b0 756 .adp_reset = megasas_adp_reset_gen2,
39a98554 757 .check_reset = megasas_check_reset_skinny,
cd50ba8e 758 .service_isr = megasas_isr,
759 .tasklet = megasas_complete_cmd_dpc,
760 .init_adapter = megasas_init_adapter_mfi,
761 .build_and_issue_cmd = megasas_build_and_issue_cmd,
762 .issue_dcmd = megasas_issue_dcmd,
87911122
YB		 763};
764
765
6610a6b3
YB		 766/**
767* The following functions are defined for gen2 (deviceid : 0x78 0x79)
768* controllers
769*/
770
771/**
772 * megasas_enable_intr_gen2 - Enables interrupts
773 * @regs: MFI register set
774 */
775static inline void
d46a3ad6 776megasas_enable_intr_gen2(struct megasas_instance *instance)
6610a6b3 777{
d46a3ad6 778 struct megasas_register_set __iomem *regs;
da0dc9fb 779
d46a3ad6 780 regs = instance->reg_set;
6610a6b3
YB		 781 writel(0xFFFFFFFF, &(regs)->outbound_doorbell_clear);
782
783 /* write ~0x00000005 (4 & 1) to the intr mask*/
784 writel(~MFI_GEN2_ENABLE_INTERRUPT_MASK, &(regs)->outbound_intr_mask);
785
786 /* Dummy readl to force pci flush */
787 readl(&regs->outbound_intr_mask);
788}
789
790/**
791 * megasas_disable_intr_gen2 - Disables interrupt
792 * @regs: MFI register set
793 */
794static inline void
d46a3ad6 795megasas_disable_intr_gen2(struct megasas_instance *instance)
6610a6b3 796{
d46a3ad6 797 struct megasas_register_set __iomem *regs;
6610a6b3 798 u32 mask = 0xFFFFFFFF;
da0dc9fb 799
d46a3ad6 800 regs = instance->reg_set;
6610a6b3
YB		 801 writel(mask, &regs->outbound_intr_mask);
802 /* Dummy readl to force pci flush */
803 readl(&regs->outbound_intr_mask);
804}
805
806/**
807 * megasas_read_fw_status_reg_gen2 - returns the current FW status value
808 * @regs: MFI register set
809 */
810static u32
811megasas_read_fw_status_reg_gen2(struct megasas_register_set __iomem *regs)
812{
813 return readl(&(regs)->outbound_scratch_pad);
814}
815
816/**
817 * megasas_clear_interrupt_gen2 - Check & clear interrupt
818 * @regs: MFI register set
819 */
820static int
821megasas_clear_intr_gen2(struct megasas_register_set __iomem *regs)
822{
823 u32 status;
39a98554 824 u32 mfiStatus = 0;
da0dc9fb 825
6610a6b3
YB		 826 /*
827 * Check if it is our interrupt
828 */
829 status = readl(&regs->outbound_intr_status);
830
b5bccadd 831 if (status & MFI_INTR_FLAG_REPLY_MESSAGE) {
39a98554 832 mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE;
833 }
834 if (status & MFI_G2_OUTBOUND_DOORBELL_CHANGE_INTERRUPT) {
835 mfiStatus |= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE;
836 }
6610a6b3
YB		 837
838 /*
839 * Clear the interrupt by writing back the same value
840 */
39a98554 841 if (mfiStatus)
842 writel(status, &regs->outbound_doorbell_clear);
6610a6b3
YB		 843
844 /* Dummy readl to force pci flush */
845 readl(&regs->outbound_intr_status);
846
39a98554 847 return mfiStatus;
6610a6b3
YB		 848}
849/**
850 * megasas_fire_cmd_gen2 - Sends command to the FW
851 * @frame_phys_addr : Physical address of cmd
852 * @frame_count : Number of frames for the command
853 * @regs : MFI register set
854 */
855static inline void
0c79e681
YB		 856megasas_fire_cmd_gen2(struct megasas_instance *instance,
857 dma_addr_t frame_phys_addr,
858 u32 frame_count,
6610a6b3
YB		 859 struct megasas_register_set __iomem *regs)
860{
39a98554 861 unsigned long flags;
da0dc9fb 862
39a98554 863 spin_lock_irqsave(&instance->hba_lock, flags);
6610a6b3
YB		 864 writel((frame_phys_addr | (frame_count<<1))|1,
865 &(regs)->inbound_queue_port);
39a98554 866 spin_unlock_irqrestore(&instance->hba_lock, flags);
867}
868
869/**
870 * megasas_adp_reset_gen2 - For controller reset
871 * @regs: MFI register set
872 */
873static int
874megasas_adp_reset_gen2(struct megasas_instance *instance,
875 struct megasas_register_set __iomem *reg_set)
876{
da0dc9fb
BH		 877 u32 retry = 0 ;
878 u32 HostDiag;
879 u32 __iomem *seq_offset = &reg_set->seq_offset;
880 u32 __iomem *hostdiag_offset = &reg_set->host_diag;
ebf054b0 881
882 if (instance->instancet == &megasas_instance_template_skinny) {
883 seq_offset = &reg_set->fusion_seq_offset;
884 hostdiag_offset = &reg_set->fusion_host_diag;
885 }
886
887 writel(0, seq_offset);
888 writel(4, seq_offset);
889 writel(0xb, seq_offset);
890 writel(2, seq_offset);
891 writel(7, seq_offset);
892 writel(0xd, seq_offset);
39a98554 893
39a98554 894 msleep(1000);
895
ebf054b0 896 HostDiag = (u32)readl(hostdiag_offset);
39a98554 897
da0dc9fb 898 while (!(HostDiag & DIAG_WRITE_ENABLE)) {
39a98554 899 msleep(100);
ebf054b0 900 HostDiag = (u32)readl(hostdiag_offset);
1be18254 901 dev_notice(&instance->pdev->dev, "RESETGEN2: retry=%x, hostdiag=%x\n",
39a98554 902 retry, HostDiag);
903
904 if (retry++ >= 100)
905 return 1;
906
907 }
908
1be18254 909 dev_notice(&instance->pdev->dev, "ADP_RESET_GEN2: HostDiag=%x\n", HostDiag);
39a98554 910
ebf054b0 911 writel((HostDiag | DIAG_RESET_ADAPTER), hostdiag_offset);
39a98554 912
913 ssleep(10);
914
ebf054b0 915 HostDiag = (u32)readl(hostdiag_offset);
da0dc9fb 916 while (HostDiag & DIAG_RESET_ADAPTER) {
39a98554 917 msleep(100);
ebf054b0 918 HostDiag = (u32)readl(hostdiag_offset);
1be18254 919 dev_notice(&instance->pdev->dev, "RESET_GEN2: retry=%x, hostdiag=%x\n",
39a98554 920 retry, HostDiag);
921
922 if (retry++ >= 1000)
923 return 1;
924
925 }
926 return 0;
927}
928
929/**
930 * megasas_check_reset_gen2 - For controller reset check
931 * @regs: MFI register set
932 */
933static int
934megasas_check_reset_gen2(struct megasas_instance *instance,
935 struct megasas_register_set __iomem *regs)
936{
707e09bd
YB		 937 if (instance->adprecovery != MEGASAS_HBA_OPERATIONAL) {
938 return 1;
939 }
940
39a98554 941 return 0;
6610a6b3
YB		 942}
943
944static struct megasas_instance_template megasas_instance_template_gen2 = {
945
946 .fire_cmd = megasas_fire_cmd_gen2,
947 .enable_intr = megasas_enable_intr_gen2,
948 .disable_intr = megasas_disable_intr_gen2,
949 .clear_intr = megasas_clear_intr_gen2,
950 .read_fw_status_reg = megasas_read_fw_status_reg_gen2,
39a98554 951 .adp_reset = megasas_adp_reset_gen2,
952 .check_reset = megasas_check_reset_gen2,
cd50ba8e 953 .service_isr = megasas_isr,
954 .tasklet = megasas_complete_cmd_dpc,
955 .init_adapter = megasas_init_adapter_mfi,
956 .build_and_issue_cmd = megasas_build_and_issue_cmd,
957 .issue_dcmd = megasas_issue_dcmd,
6610a6b3
YB		 958};
959
f9876f0b
SP		 960/**
961* This is the end of set of functions & definitions
39a98554 962* specific to gen2 (deviceid : 0x78, 0x79) controllers
f9876f0b
SP		 963*/
964
9c915a8c 965/*
966 * Template added for TB (Fusion)
967 */
968extern struct megasas_instance_template megasas_instance_template_fusion;
969
c4a3e0a5
BS		 970/**
971 * megasas_issue_polled - Issues a polling command
972 * @instance: Adapter soft state
0d49016b 973 * @cmd: Command packet to be issued
c4a3e0a5 974 *
2be2a988 975 * For polling, MFI requires the cmd_status to be set to MFI_STAT_INVALID_STATUS before posting.
c4a3e0a5 976 */
9c915a8c 977int
c4a3e0a5
BS		 978megasas_issue_polled(struct megasas_instance *instance, struct megasas_cmd *cmd)
979{
229fe47c 980 int seconds;
c4a3e0a5
BS		 981 struct megasas_header *frame_hdr = &cmd->frame->hdr;
982
94cd65dd
SS		 983 frame_hdr->cmd_status = MFI_CMD_STATUS_POLL_MODE;
984 frame_hdr->flags |= cpu_to_le16(MFI_FRAME_DONT_POST_IN_REPLY_QUEUE);
c4a3e0a5
BS		 985
986 /*
987 * Issue the frame using inbound queue port
988 */
9c915a8c 989 instance->instancet->issue_dcmd(instance, cmd);
c4a3e0a5
BS		 990
991 /*
992 * Wait for cmd_status to change
993 */
229fe47c 994 if (instance->requestorId)
995 seconds = MEGASAS_ROUTINE_WAIT_TIME_VF;
996 else
997 seconds = MFI_POLL_TIMEOUT_SECS;
998 return wait_and_poll(instance, cmd, seconds);
c4a3e0a5
BS		 999}
1000
1001/**
1002 * megasas_issue_blocked_cmd - Synchronous wrapper around regular FW cmds
1003 * @instance: Adapter soft state
1004 * @cmd: Command to be issued
cfbe7554 1005 * @timeout: Timeout in seconds
c4a3e0a5
BS		 1006 *
1007 * This function waits on an event for the command to be returned from ISR.
2a3681e5 1008 * Max wait time is MEGASAS_INTERNAL_CMD_WAIT_TIME secs
c4a3e0a5
BS		 1009 * Used to issue ioctl commands.
1010 */
90dc9d98 1011int
c4a3e0a5 1012megasas_issue_blocked_cmd(struct megasas_instance *instance,
cfbe7554 1013 struct megasas_cmd *cmd, int timeout)
c4a3e0a5 1014{
cfbe7554 1015 int ret = 0;
da0dc9fb 1016
2be2a988 1017 cmd->cmd_status_drv = MFI_STAT_INVALID_STATUS;
c4a3e0a5 1018
9c915a8c 1019 instance->instancet->issue_dcmd(instance, cmd);
cfbe7554
SS		 1020 if (timeout) {
1021 ret = wait_event_timeout(instance->int_cmd_wait_q,
2be2a988 1022 cmd->cmd_status_drv != MFI_STAT_INVALID_STATUS, timeout * HZ);
cfbe7554
SS		 1023 if (!ret)
1024 return 1;
1025 } else
1026 wait_event(instance->int_cmd_wait_q,
2be2a988 1027 cmd->cmd_status_drv != MFI_STAT_INVALID_STATUS);
c4a3e0a5 1028
2be2a988
SS		 1029 return (cmd->cmd_status_drv == MFI_STAT_OK) ?
1030 0 : 1;
c4a3e0a5
BS		 1031}
1032
1033/**
1034 * megasas_issue_blocked_abort_cmd - Aborts previously issued cmd
1035 * @instance: Adapter soft state
1036 * @cmd_to_abort: Previously issued cmd to be aborted
cfbe7554 1037 * @timeout: Timeout in seconds
c4a3e0a5 1038 *
cfbe7554 1039 * MFI firmware can abort previously issued AEN comamnd (automatic event
c4a3e0a5 1040 * notification). The megasas_issue_blocked_abort_cmd() issues such abort
2a3681e5
SP		 1041 * cmd and waits for return status.
1042 * Max wait time is MEGASAS_INTERNAL_CMD_WAIT_TIME secs
c4a3e0a5
BS		 1043 */
1044static int
1045megasas_issue_blocked_abort_cmd(struct megasas_instance *instance,
cfbe7554 1046 struct megasas_cmd *cmd_to_abort, int timeout)
c4a3e0a5
BS		 1047{
1048 struct megasas_cmd *cmd;
1049 struct megasas_abort_frame *abort_fr;
cfbe7554 1050 int ret = 0;
c4a3e0a5
BS		 1051
1052 cmd = megasas_get_cmd(instance);
1053
1054 if (!cmd)
1055 return -1;
1056
1057 abort_fr = &cmd->frame->abort;
1058
1059 /*
1060 * Prepare and issue the abort frame
1061 */
1062 abort_fr->cmd = MFI_CMD_ABORT;
2be2a988 1063 abort_fr->cmd_status = MFI_STAT_INVALID_STATUS;
94cd65dd
SS		 1064 abort_fr->flags = cpu_to_le16(0);
1065 abort_fr->abort_context = cpu_to_le32(cmd_to_abort->index);
1066 abort_fr->abort_mfi_phys_addr_lo =
1067 cpu_to_le32(lower_32_bits(cmd_to_abort->frame_phys_addr));
1068 abort_fr->abort_mfi_phys_addr_hi =
1069 cpu_to_le32(upper_32_bits(cmd_to_abort->frame_phys_addr));
c4a3e0a5
BS		 1070
1071 cmd->sync_cmd = 1;
2be2a988 1072 cmd->cmd_status_drv = MFI_STAT_INVALID_STATUS;
c4a3e0a5 1073
9c915a8c 1074 instance->instancet->issue_dcmd(instance, cmd);
c4a3e0a5 1075
cfbe7554
SS		 1076 if (timeout) {
1077 ret = wait_event_timeout(instance->abort_cmd_wait_q,
2be2a988 1078 cmd->cmd_status_drv != MFI_STAT_INVALID_STATUS, timeout * HZ);
cfbe7554
SS		 1079 if (!ret) {
1080 dev_err(&instance->pdev->dev, "Command timedout"
1081 "from %s\n", __func__);
1082 return 1;
1083 }
1084 } else
1085 wait_event(instance->abort_cmd_wait_q,
2be2a988 1086 cmd->cmd_status_drv != MFI_STAT_INVALID_STATUS);
cfbe7554 1087
39a98554 1088 cmd->sync_cmd = 0;
c4a3e0a5
BS		 1089
1090 megasas_return_cmd(instance, cmd);
1091 return 0;
1092}
1093
1094/**
1095 * megasas_make_sgl32 - Prepares 32-bit SGL
1096 * @instance: Adapter soft state
1097 * @scp: SCSI command from the mid-layer
1098 * @mfi_sgl: SGL to be filled in
1099 *
1100 * If successful, this function returns the number of SG elements. Otherwise,
1101 * it returnes -1.
1102 */
858119e1 1103static int
c4a3e0a5
BS		 1104megasas_make_sgl32(struct megasas_instance *instance, struct scsi_cmnd *scp,
1105 union megasas_sgl *mfi_sgl)
1106{
1107 int i;
1108 int sge_count;
1109 struct scatterlist *os_sgl;
1110
155d98f0
FT		 1111 sge_count = scsi_dma_map(scp);
1112 BUG_ON(sge_count < 0);
c4a3e0a5 1113
155d98f0
FT		 1114 if (sge_count) {
1115 scsi_for_each_sg(scp, os_sgl, sge_count, i) {
94cd65dd
SS		 1116 mfi_sgl->sge32[i].length = cpu_to_le32(sg_dma_len(os_sgl));
1117 mfi_sgl->sge32[i].phys_addr = cpu_to_le32(sg_dma_address(os_sgl));
155d98f0 1118 }
c4a3e0a5 1119 }
c4a3e0a5
BS		 1120 return sge_count;
1121}
1122
1123/**
1124 * megasas_make_sgl64 - Prepares 64-bit SGL
1125 * @instance: Adapter soft state
1126 * @scp: SCSI command from the mid-layer
1127 * @mfi_sgl: SGL to be filled in
1128 *
1129 * If successful, this function returns the number of SG elements. Otherwise,
1130 * it returnes -1.
1131 */
858119e1 1132static int
c4a3e0a5
BS		 1133megasas_make_sgl64(struct megasas_instance *instance, struct scsi_cmnd *scp,
1134 union megasas_sgl *mfi_sgl)
1135{
1136 int i;
1137 int sge_count;
1138 struct scatterlist *os_sgl;
1139
155d98f0
FT		 1140 sge_count = scsi_dma_map(scp);
1141 BUG_ON(sge_count < 0);
c4a3e0a5 1142
155d98f0
FT		 1143 if (sge_count) {
1144 scsi_for_each_sg(scp, os_sgl, sge_count, i) {
94cd65dd
SS		 1145 mfi_sgl->sge64[i].length = cpu_to_le32(sg_dma_len(os_sgl));
1146 mfi_sgl->sge64[i].phys_addr = cpu_to_le64(sg_dma_address(os_sgl));
155d98f0 1147 }
c4a3e0a5 1148 }
c4a3e0a5
BS		 1149 return sge_count;
1150}
1151
f4c9a131
YB		 1152/**
1153 * megasas_make_sgl_skinny - Prepares IEEE SGL
1154 * @instance: Adapter soft state
1155 * @scp: SCSI command from the mid-layer
1156 * @mfi_sgl: SGL to be filled in
1157 *
1158 * If successful, this function returns the number of SG elements. Otherwise,
1159 * it returnes -1.
1160 */
1161static int
1162megasas_make_sgl_skinny(struct megasas_instance *instance,
1163 struct scsi_cmnd *scp, union megasas_sgl *mfi_sgl)
1164{
1165 int i;
1166 int sge_count;
1167 struct scatterlist *os_sgl;
1168
1169 sge_count = scsi_dma_map(scp);
1170
1171 if (sge_count) {
1172 scsi_for_each_sg(scp, os_sgl, sge_count, i) {
94cd65dd
SS		 1173 mfi_sgl->sge_skinny[i].length =
1174 cpu_to_le32(sg_dma_len(os_sgl));
f4c9a131 1175 mfi_sgl->sge_skinny[i].phys_addr =
94cd65dd
SS		 1176 cpu_to_le64(sg_dma_address(os_sgl));
1177 mfi_sgl->sge_skinny[i].flag = cpu_to_le32(0);
f4c9a131
YB		 1178 }
1179 }
1180 return sge_count;
1181}
1182
b1df99d9
SP		 1183 /**
1184 * megasas_get_frame_count - Computes the number of frames
d532dbe2 1185 * @frame_type : type of frame- io or pthru frame
b1df99d9
SP		 1186 * @sge_count : number of sg elements
1187 *
1188 * Returns the number of frames required for numnber of sge's (sge_count)
1189 */
1190
f4c9a131
YB		 1191static u32 megasas_get_frame_count(struct megasas_instance *instance,
1192 u8 sge_count, u8 frame_type)
b1df99d9
SP		 1193{
1194 int num_cnt;
1195 int sge_bytes;
1196 u32 sge_sz;
da0dc9fb 1197 u32 frame_count = 0;
b1df99d9
SP		 1198
1199 sge_sz = (IS_DMA64) ? sizeof(struct megasas_sge64) :
1200 sizeof(struct megasas_sge32);
1201
f4c9a131
YB		 1202 if (instance->flag_ieee) {
1203 sge_sz = sizeof(struct megasas_sge_skinny);
1204 }
1205
b1df99d9 1206 /*
d532dbe2 1207 * Main frame can contain 2 SGEs for 64-bit SGLs and
1208 * 3 SGEs for 32-bit SGLs for ldio &
1209 * 1 SGEs for 64-bit SGLs and
1210 * 2 SGEs for 32-bit SGLs for pthru frame
1211 */
1212 if (unlikely(frame_type == PTHRU_FRAME)) {
f4c9a131
YB		 1213 if (instance->flag_ieee == 1) {
1214 num_cnt = sge_count - 1;
1215 } else if (IS_DMA64)
d532dbe2 1216 num_cnt = sge_count - 1;
1217 else
1218 num_cnt = sge_count - 2;
1219 } else {
f4c9a131
YB		 1220 if (instance->flag_ieee == 1) {
1221 num_cnt = sge_count - 1;
1222 } else if (IS_DMA64)
d532dbe2 1223 num_cnt = sge_count - 2;
1224 else
1225 num_cnt = sge_count - 3;
1226 }
b1df99d9 1227
da0dc9fb 1228 if (num_cnt > 0) {
b1df99d9
SP		 1229 sge_bytes = sge_sz * num_cnt;
1230
1231 frame_count = (sge_bytes / MEGAMFI_FRAME_SIZE) +
1232 ((sge_bytes % MEGAMFI_FRAME_SIZE) ? 1 : 0) ;
1233 }
1234 /* Main frame */
da0dc9fb 1235 frame_count += 1;
b1df99d9
SP		 1236
1237 if (frame_count > 7)
1238 frame_count = 8;
1239 return frame_count;
1240}
1241
c4a3e0a5
BS		 1242/**
1243 * megasas_build_dcdb - Prepares a direct cdb (DCDB) command
1244 * @instance: Adapter soft state
1245 * @scp: SCSI command
1246 * @cmd: Command to be prepared in
1247 *
1248 * This function prepares CDB commands. These are typcially pass-through
1249 * commands to the devices.
1250 */
858119e1 1251static int
c4a3e0a5
BS		 1252megasas_build_dcdb(struct megasas_instance *instance, struct scsi_cmnd *scp,
1253 struct megasas_cmd *cmd)
1254{
c4a3e0a5
BS		 1255 u32 is_logical;
1256 u32 device_id;
1257 u16 flags = 0;
1258 struct megasas_pthru_frame *pthru;
1259
1260 is_logical = MEGASAS_IS_LOGICAL(scp);
4a5c814d 1261 device_id = MEGASAS_DEV_INDEX(scp);
c4a3e0a5
BS		 1262 pthru = (struct megasas_pthru_frame *)cmd->frame;
1263
1264 if (scp->sc_data_direction == PCI_DMA_TODEVICE)
1265 flags = MFI_FRAME_DIR_WRITE;
1266 else if (scp->sc_data_direction == PCI_DMA_FROMDEVICE)
1267 flags = MFI_FRAME_DIR_READ;
1268 else if (scp->sc_data_direction == PCI_DMA_NONE)
1269 flags = MFI_FRAME_DIR_NONE;
1270
f4c9a131
YB		 1271 if (instance->flag_ieee == 1) {
1272 flags |= MFI_FRAME_IEEE;
1273 }
1274
c4a3e0a5
BS		 1275 /*
1276 * Prepare the DCDB frame
1277 */
1278 pthru->cmd = (is_logical) ? MFI_CMD_LD_SCSI_IO : MFI_CMD_PD_SCSI_IO;
1279 pthru->cmd_status = 0x0;
1280 pthru->scsi_status = 0x0;
1281 pthru->target_id = device_id;
1282 pthru->lun = scp->device->lun;
1283 pthru->cdb_len = scp->cmd_len;
1284 pthru->timeout = 0;
780a3762 1285 pthru->pad_0 = 0;
94cd65dd
SS		 1286 pthru->flags = cpu_to_le16(flags);
1287 pthru->data_xfer_len = cpu_to_le32(scsi_bufflen(scp));
c4a3e0a5
BS		 1288
1289 memcpy(pthru->cdb, scp->cmnd, scp->cmd_len);
1290
8d568253 1291 /*
da0dc9fb
BH		 1292 * If the command is for the tape device, set the
1293 * pthru timeout to the os layer timeout value.
1294 */
8d568253
YB		 1295 if (scp->device->type == TYPE_TAPE) {
1296 if ((scp->request->timeout / HZ) > 0xFFFF)
c6f5bf81 1297 pthru->timeout = cpu_to_le16(0xFFFF);
8d568253 1298 else
94cd65dd 1299 pthru->timeout = cpu_to_le16(scp->request->timeout / HZ);
8d568253
YB		 1300 }
1301
c4a3e0a5
BS		 1302 /*
1303 * Construct SGL
1304 */
f4c9a131 1305 if (instance->flag_ieee == 1) {
94cd65dd 1306 pthru->flags |= cpu_to_le16(MFI_FRAME_SGL64);
f4c9a131
YB		 1307 pthru->sge_count = megasas_make_sgl_skinny(instance, scp,
1308 &pthru->sgl);
1309 } else if (IS_DMA64) {
94cd65dd 1310 pthru->flags |= cpu_to_le16(MFI_FRAME_SGL64);
c4a3e0a5
BS		 1311 pthru->sge_count = megasas_make_sgl64(instance, scp,
1312 &pthru->sgl);
1313 } else
1314 pthru->sge_count = megasas_make_sgl32(instance, scp,
1315 &pthru->sgl);
1316
bdc6fb8d 1317 if (pthru->sge_count > instance->max_num_sge) {
1be18254 1318 dev_err(&instance->pdev->dev, "DCDB too many SGE NUM=%x\n",
bdc6fb8d
YB		 1319 pthru->sge_count);
1320 return 0;
1321 }
1322
c4a3e0a5
BS		 1323 /*
1324 * Sense info specific
1325 */
1326 pthru->sense_len = SCSI_SENSE_BUFFERSIZE;
94cd65dd
SS		 1327 pthru->sense_buf_phys_addr_hi =
1328 cpu_to_le32(upper_32_bits(cmd->sense_phys_addr));
1329 pthru->sense_buf_phys_addr_lo =
1330 cpu_to_le32(lower_32_bits(cmd->sense_phys_addr));
c4a3e0a5 1331
c4a3e0a5
BS		 1332 /*
1333 * Compute the total number of frames this command consumes. FW uses
1334 * this number to pull sufficient number of frames from host memory.
1335 */
f4c9a131 1336 cmd->frame_count = megasas_get_frame_count(instance, pthru->sge_count,
d532dbe2 1337 PTHRU_FRAME);
c4a3e0a5
BS		 1338
1339 return cmd->frame_count;
1340}
1341
1342/**
1343 * megasas_build_ldio - Prepares IOs to logical devices
1344 * @instance: Adapter soft state
1345 * @scp: SCSI command
fd589a8f 1346 * @cmd: Command to be prepared
c4a3e0a5
BS		 1347 *
1348 * Frames (and accompanying SGLs) for regular SCSI IOs use this function.
1349 */
858119e1 1350static int
c4a3e0a5
BS		 1351megasas_build_ldio(struct megasas_instance *instance, struct scsi_cmnd *scp,
1352 struct megasas_cmd *cmd)
1353{
c4a3e0a5
BS		 1354 u32 device_id;
1355 u8 sc = scp->cmnd[0];
1356 u16 flags = 0;
1357 struct megasas_io_frame *ldio;
1358
4a5c814d 1359 device_id = MEGASAS_DEV_INDEX(scp);
c4a3e0a5
BS		 1360 ldio = (struct megasas_io_frame *)cmd->frame;
1361
1362 if (scp->sc_data_direction == PCI_DMA_TODEVICE)
1363 flags = MFI_FRAME_DIR_WRITE;
1364 else if (scp->sc_data_direction == PCI_DMA_FROMDEVICE)
1365 flags = MFI_FRAME_DIR_READ;
1366
f4c9a131
YB		 1367 if (instance->flag_ieee == 1) {
1368 flags |= MFI_FRAME_IEEE;
1369 }
1370
c4a3e0a5 1371 /*
b1df99d9 1372 * Prepare the Logical IO frame: 2nd bit is zero for all read cmds
c4a3e0a5
BS		 1373 */
1374 ldio->cmd = (sc & 0x02) ? MFI_CMD_LD_WRITE : MFI_CMD_LD_READ;
1375 ldio->cmd_status = 0x0;
1376 ldio->scsi_status = 0x0;
1377 ldio->target_id = device_id;
1378 ldio->timeout = 0;
1379 ldio->reserved_0 = 0;
1380 ldio->pad_0 = 0;
94cd65dd 1381 ldio->flags = cpu_to_le16(flags);
c4a3e0a5
BS		 1382 ldio->start_lba_hi = 0;
1383 ldio->access_byte = (scp->cmd_len != 6) ? scp->cmnd[1] : 0;
1384
1385 /*
1386 * 6-byte READ(0x08) or WRITE(0x0A) cdb
1387 */
1388 if (scp->cmd_len == 6) {
94cd65dd
SS		 1389 ldio->lba_count = cpu_to_le32((u32) scp->cmnd[4]);
1390 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[1] << 16) |
1391 ((u32) scp->cmnd[2] << 8) |
1392 (u32) scp->cmnd[3]);
c4a3e0a5 1393
94cd65dd 1394 ldio->start_lba_lo &= cpu_to_le32(0x1FFFFF);
c4a3e0a5
BS		 1395 }
1396
1397 /*
1398 * 10-byte READ(0x28) or WRITE(0x2A) cdb
1399 */
1400 else if (scp->cmd_len == 10) {
94cd65dd
SS		 1401 ldio->lba_count = cpu_to_le32((u32) scp->cmnd[8] |
1402 ((u32) scp->cmnd[7] << 8));
1403 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[2] << 24) |
1404 ((u32) scp->cmnd[3] << 16) |
1405 ((u32) scp->cmnd[4] << 8) |
1406 (u32) scp->cmnd[5]);
c4a3e0a5
BS		 1407 }
1408
1409 /*
1410 * 12-byte READ(0xA8) or WRITE(0xAA) cdb
1411 */
1412 else if (scp->cmd_len == 12) {
94cd65dd
SS		 1413 ldio->lba_count = cpu_to_le32(((u32) scp->cmnd[6] << 24) |
1414 ((u32) scp->cmnd[7] << 16) |
1415 ((u32) scp->cmnd[8] << 8) |
1416 (u32) scp->cmnd[9]);
c4a3e0a5 1417
94cd65dd
SS		 1418 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[2] << 24) |
1419 ((u32) scp->cmnd[3] << 16) |
1420 ((u32) scp->cmnd[4] << 8) |
1421 (u32) scp->cmnd[5]);
c4a3e0a5
BS		 1422 }
1423
1424 /*
1425 * 16-byte READ(0x88) or WRITE(0x8A) cdb
1426 */
1427 else if (scp->cmd_len == 16) {
94cd65dd
SS		 1428 ldio->lba_count = cpu_to_le32(((u32) scp->cmnd[10] << 24) |
1429 ((u32) scp->cmnd[11] << 16) |
1430 ((u32) scp->cmnd[12] << 8) |
1431 (u32) scp->cmnd[13]);
c4a3e0a5 1432
94cd65dd
SS		 1433 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[6] << 24) |
1434 ((u32) scp->cmnd[7] << 16) |
1435 ((u32) scp->cmnd[8] << 8) |
1436 (u32) scp->cmnd[9]);
c4a3e0a5 1437
94cd65dd
SS		 1438 ldio->start_lba_hi = cpu_to_le32(((u32) scp->cmnd[2] << 24) |
1439 ((u32) scp->cmnd[3] << 16) |
1440 ((u32) scp->cmnd[4] << 8) |
1441 (u32) scp->cmnd[5]);
c4a3e0a5
BS		 1442
1443 }
1444
1445 /*
1446 * Construct SGL
1447 */
f4c9a131 1448 if (instance->flag_ieee) {
94cd65dd 1449 ldio->flags |= cpu_to_le16(MFI_FRAME_SGL64);
f4c9a131
YB		 1450 ldio->sge_count = megasas_make_sgl_skinny(instance, scp,
1451 &ldio->sgl);
1452 } else if (IS_DMA64) {
94cd65dd 1453 ldio->flags |= cpu_to_le16(MFI_FRAME_SGL64);
c4a3e0a5
BS		 1454 ldio->sge_count = megasas_make_sgl64(instance, scp, &ldio->sgl);
1455 } else
1456 ldio->sge_count = megasas_make_sgl32(instance, scp, &ldio->sgl);
1457
bdc6fb8d 1458 if (ldio->sge_count > instance->max_num_sge) {
1be18254 1459 dev_err(&instance->pdev->dev, "build_ld_io: sge_count = %x\n",
bdc6fb8d
YB		 1460 ldio->sge_count);
1461 return 0;
1462 }
1463
c4a3e0a5
BS		 1464 /*
1465 * Sense info specific
1466 */
1467 ldio->sense_len = SCSI_SENSE_BUFFERSIZE;
1468 ldio->sense_buf_phys_addr_hi = 0;
94cd65dd 1469 ldio->sense_buf_phys_addr_lo = cpu_to_le32(cmd->sense_phys_addr);
c4a3e0a5 1470
b1df99d9
SP		 1471 /*
1472 * Compute the total number of frames this command consumes. FW uses
1473 * this number to pull sufficient number of frames from host memory.
1474 */
f4c9a131
YB		 1475 cmd->frame_count = megasas_get_frame_count(instance,
1476 ldio->sge_count, IO_FRAME);
c4a3e0a5
BS		 1477
1478 return cmd->frame_count;
1479}
1480
1481/**
7497cde8
SS		 1482 * megasas_cmd_type - Checks if the cmd is for logical drive/sysPD
1483 * and whether it's RW or non RW
cb59aa6a 1484 * @scmd: SCSI command
0d49016b 1485 *
c4a3e0a5 1486 */
7497cde8 1487inline int megasas_cmd_type(struct scsi_cmnd *cmd)
c4a3e0a5 1488{
7497cde8
SS		 1489 int ret;
1490
cb59aa6a
SP		 1491 switch (cmd->cmnd[0]) {
1492 case READ_10:
1493 case WRITE_10:
1494 case READ_12:
1495 case WRITE_12:
1496 case READ_6:
1497 case WRITE_6:
1498 case READ_16:
1499 case WRITE_16:
7497cde8
SS		 1500 ret = (MEGASAS_IS_LOGICAL(cmd)) ?
1501 READ_WRITE_LDIO : READ_WRITE_SYSPDIO;
1502 break;
cb59aa6a 1503 default:
7497cde8
SS		 1504 ret = (MEGASAS_IS_LOGICAL(cmd)) ?
1505 NON_READ_WRITE_LDIO : NON_READ_WRITE_SYSPDIO;
c4a3e0a5 1506 }
7497cde8 1507 return ret;
c4a3e0a5
BS		 1508}
1509
658dcedb
SP		 1510 /**
1511 * megasas_dump_pending_frames - Dumps the frame address of all pending cmds
da0dc9fb 1512 * in FW
658dcedb
SP		 1513 * @instance: Adapter soft state
1514 */
1515static inline void
1516megasas_dump_pending_frames(struct megasas_instance *instance)
1517{
1518 struct megasas_cmd *cmd;
1519 int i,n;
1520 union megasas_sgl *mfi_sgl;
1521 struct megasas_io_frame *ldio;
1522 struct megasas_pthru_frame *pthru;
1523 u32 sgcount;
1524 u32 max_cmd = instance->max_fw_cmds;
1525
1be18254
BH		 1526 dev_err(&instance->pdev->dev, "[%d]: Dumping Frame Phys Address of all pending cmds in FW\n",instance->host->host_no);
1527 dev_err(&instance->pdev->dev, "[%d]: Total OS Pending cmds : %d\n",instance->host->host_no,atomic_read(&instance->fw_outstanding));
658dcedb 1528 if (IS_DMA64)
1be18254 1529 dev_err(&instance->pdev->dev, "[%d]: 64 bit SGLs were sent to FW\n",instance->host->host_no);
658dcedb 1530 else
1be18254 1531 dev_err(&instance->pdev->dev, "[%d]: 32 bit SGLs were sent to FW\n",instance->host->host_no);
658dcedb 1532
1be18254 1533 dev_err(&instance->pdev->dev, "[%d]: Pending OS cmds in FW : \n",instance->host->host_no);
658dcedb
SP		 1534 for (i = 0; i < max_cmd; i++) {
1535 cmd = instance->cmd_list[i];
da0dc9fb 1536 if (!cmd->scmd)
658dcedb 1537 continue;
1be18254 1538 dev_err(&instance->pdev->dev, "[%d]: Frame addr :0x%08lx : ",instance->host->host_no,(unsigned long)cmd->frame_phys_addr);
7497cde8 1539 if (megasas_cmd_type(cmd->scmd) == READ_WRITE_LDIO) {
658dcedb
SP		 1540 ldio = (struct megasas_io_frame *)cmd->frame;
1541 mfi_sgl = &ldio->sgl;
1542 sgcount = ldio->sge_count;
1be18254 1543 dev_err(&instance->pdev->dev, "[%d]: frame count : 0x%x, Cmd : 0x%x, Tgt id : 0x%x,"
94cd65dd
SS		 1544 " lba lo : 0x%x, lba_hi : 0x%x, sense_buf addr : 0x%x,sge count : 0x%x\n",
1545 instance->host->host_no, cmd->frame_count, ldio->cmd, ldio->target_id,
1546 le32_to_cpu(ldio->start_lba_lo), le32_to_cpu(ldio->start_lba_hi),
1547 le32_to_cpu(ldio->sense_buf_phys_addr_lo), sgcount);
da0dc9fb 1548 } else {
658dcedb
SP		 1549 pthru = (struct megasas_pthru_frame *) cmd->frame;
1550 mfi_sgl = &pthru->sgl;
1551 sgcount = pthru->sge_count;
1be18254 1552 dev_err(&instance->pdev->dev, "[%d]: frame count : 0x%x, Cmd : 0x%x, Tgt id : 0x%x, "
94cd65dd
SS		 1553 "lun : 0x%x, cdb_len : 0x%x, data xfer len : 0x%x, sense_buf addr : 0x%x,sge count : 0x%x\n",
1554 instance->host->host_no, cmd->frame_count, pthru->cmd, pthru->target_id,
1555 pthru->lun, pthru->cdb_len, le32_to_cpu(pthru->data_xfer_len),
1556 le32_to_cpu(pthru->sense_buf_phys_addr_lo), sgcount);
658dcedb 1557 }
da0dc9fb
BH		 1558 if (megasas_dbg_lvl & MEGASAS_DBG_LVL) {
1559 for (n = 0; n < sgcount; n++) {
1560 if (IS_DMA64)
1561 dev_err(&instance->pdev->dev, "sgl len : 0x%x, sgl addr : 0x%llx\n",
1562 le32_to_cpu(mfi_sgl->sge64[n].length),
1563 le64_to_cpu(mfi_sgl->sge64[n].phys_addr));
1564 else
1565 dev_err(&instance->pdev->dev, "sgl len : 0x%x, sgl addr : 0x%x\n",
1566 le32_to_cpu(mfi_sgl->sge32[n].length),
1567 le32_to_cpu(mfi_sgl->sge32[n].phys_addr));
658dcedb
SP		 1568 }
1569 }
658dcedb 1570 } /*for max_cmd*/
1be18254 1571 dev_err(&instance->pdev->dev, "[%d]: Pending Internal cmds in FW : \n",instance->host->host_no);
658dcedb
SP		 1572 for (i = 0; i < max_cmd; i++) {
1573
1574 cmd = instance->cmd_list[i];
1575
da0dc9fb 1576 if (cmd->sync_cmd == 1)
1be18254 1577 dev_err(&instance->pdev->dev, "0x%08lx : ", (unsigned long)cmd->frame_phys_addr);
658dcedb 1578 }
1be18254 1579 dev_err(&instance->pdev->dev, "[%d]: Dumping Done\n\n",instance->host->host_no);
658dcedb
SP		 1580}
1581
cd50ba8e 1582u32
1583megasas_build_and_issue_cmd(struct megasas_instance *instance,
1584 struct scsi_cmnd *scmd)
1585{
1586 struct megasas_cmd *cmd;
1587 u32 frame_count;
1588
1589 cmd = megasas_get_cmd(instance);
1590 if (!cmd)
1591 return SCSI_MLQUEUE_HOST_BUSY;
1592
1593 /*
1594 * Logical drive command
1595 */
7497cde8 1596 if (megasas_cmd_type(scmd) == READ_WRITE_LDIO)
cd50ba8e 1597 frame_count = megasas_build_ldio(instance, scmd, cmd);
1598 else
1599 frame_count = megasas_build_dcdb(instance, scmd, cmd);
1600
1601 if (!frame_count)
1602 goto out_return_cmd;
1603
1604 cmd->scmd = scmd;
1605 scmd->SCp.ptr = (char *)cmd;
1606
1607 /*
1608 * Issue the command to the FW
1609 */
1610 atomic_inc(&instance->fw_outstanding);
1611
1612 instance->instancet->fire_cmd(instance, cmd->frame_phys_addr,
1613 cmd->frame_count-1, instance->reg_set);
cd50ba8e 1614
1615 return 0;
1616out_return_cmd:
1617 megasas_return_cmd(instance, cmd);
1618 return 1;
1619}
1620
1621
c4a3e0a5
BS		 1622/**
1623 * megasas_queue_command - Queue entry point
1624 * @scmd: SCSI command to be queued
1625 * @done: Callback entry point
1626 */
1627static int
fb1a24ff 1628megasas_queue_command(struct Scsi_Host *shost, struct scsi_cmnd *scmd)
c4a3e0a5 1629{
c4a3e0a5 1630 struct megasas_instance *instance;
39a98554 1631 unsigned long flags;
c4a3e0a5
BS		 1632
1633 instance = (struct megasas_instance *)
1634 scmd->device->host->hostdata;
af37acfb 1635
aa00832b
SS		 1636 if (instance->unload == 1) {
1637 scmd->result = DID_NO_CONNECT << 16;
1638 scmd->scsi_done(scmd);
1639 return 0;
1640 }
1641
39a98554 1642 if (instance->issuepend_done == 0)
af37acfb
SP		 1643 return SCSI_MLQUEUE_HOST_BUSY;
1644
39a98554 1645 spin_lock_irqsave(&instance->hba_lock, flags);
b09e66da 1646
229fe47c 1647 /* Check for an mpio path and adjust behavior */
1648 if (instance->adprecovery == MEGASAS_ADPRESET_SM_INFAULT) {
1649 if (megasas_check_mpio_paths(instance, scmd) ==
1650 (DID_RESET << 16)) {
1651 spin_unlock_irqrestore(&instance->hba_lock, flags);
1652 return SCSI_MLQUEUE_HOST_BUSY;
1653 } else {
1654 spin_unlock_irqrestore(&instance->hba_lock, flags);
1655 scmd->result = DID_NO_CONNECT << 16;
fb1a24ff 1656 scmd->scsi_done(scmd);
229fe47c 1657 return 0;
1658 }
1659 }
1660
b09e66da
SS		 1661 if (instance->adprecovery == MEGASAS_HW_CRITICAL_ERROR) {
1662 spin_unlock_irqrestore(&instance->hba_lock, flags);
229fe47c 1663 scmd->result = DID_NO_CONNECT << 16;
fb1a24ff 1664 scmd->scsi_done(scmd);
b09e66da
SS		 1665 return 0;
1666 }
1667
39a98554 1668 if (instance->adprecovery != MEGASAS_HBA_OPERATIONAL) {
1669 spin_unlock_irqrestore(&instance->hba_lock, flags);
1670 return SCSI_MLQUEUE_HOST_BUSY;
1671 }
1672
1673 spin_unlock_irqrestore(&instance->hba_lock, flags);
1674
c4a3e0a5
BS		 1675 scmd->result = 0;
1676
cb59aa6a 1677 if (MEGASAS_IS_LOGICAL(scmd) &&
51087a86
SS		 1678 (scmd->device->id >= instance->fw_supported_vd_count ||
1679 scmd->device->lun)) {
cb59aa6a
SP		 1680 scmd->result = DID_BAD_TARGET << 16;
1681 goto out_done;
c4a3e0a5
BS		 1682 }
1683
02b01e01
SP		 1684 switch (scmd->cmnd[0]) {
1685 case SYNCHRONIZE_CACHE:
1686 /*
1687 * FW takes care of flush cache on its own
1688 * No need to send it down
1689 */
1690 scmd->result = DID_OK << 16;
1691 goto out_done;
1692 default:
1693 break;
1694 }
1695
cd50ba8e 1696 if (instance->instancet->build_and_issue_cmd(instance, scmd)) {
1be18254 1697 dev_err(&instance->pdev->dev, "Err returned from build_and_issue_cmd\n");
cb59aa6a 1698 return SCSI_MLQUEUE_HOST_BUSY;
cd50ba8e 1699 }
c4a3e0a5
BS		 1700
1701 return 0;
cb59aa6a 1702
cb59aa6a 1703 out_done:
fb1a24ff 1704 scmd->scsi_done(scmd);
cb59aa6a 1705 return 0;
c4a3e0a5
BS		 1706}
1707
044833b5
YB		 1708static struct megasas_instance *megasas_lookup_instance(u16 host_no)
1709{
1710 int i;
1711
1712 for (i = 0; i < megasas_mgmt_info.max_index; i++) {
1713
1714 if ((megasas_mgmt_info.instance[i]) &&
1715 (megasas_mgmt_info.instance[i]->host->host_no == host_no))
1716 return megasas_mgmt_info.instance[i];
1717 }
1718
1719 return NULL;
1720}
1721
147aab6a
CH		 1722static int megasas_slave_configure(struct scsi_device *sdev)
1723{
e5b3a65f 1724 /*
da0dc9fb
BH		 1725 * The RAID firmware may require extended timeouts.
1726 */
044833b5
YB		 1727 blk_queue_rq_timeout(sdev->request_queue,
1728 MEGASAS_DEFAULT_CMD_TIMEOUT * HZ);
07e38d94 1729
044833b5
YB		 1730 return 0;
1731}
1732
1733static int megasas_slave_alloc(struct scsi_device *sdev)
1734{
da0dc9fb 1735 u16 pd_index = 0;
044833b5 1736 struct megasas_instance *instance ;
da0dc9fb 1737
044833b5 1738 instance = megasas_lookup_instance(sdev->host->host_no);
07e38d94 1739 if (sdev->channel < MEGASAS_MAX_PD_CHANNELS) {
044833b5
YB		 1740 /*
1741 * Open the OS scan to the SYSTEM PD
1742 */
1743 pd_index =
1744 (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) +
1745 sdev->id;
07e38d94
SS		 1746 if (instance->pd_list[pd_index].driveState ==
1747 MR_PD_STATE_SYSTEM) {
044833b5
YB		 1748 return 0;
1749 }
1750 return -ENXIO;
1751 }
147aab6a
CH		 1752 return 0;
1753}
1754
c8dd61ef
SS		 1755/*
1756* megasas_complete_outstanding_ioctls - Complete outstanding ioctls after a
1757* kill adapter
1758* @instance: Adapter soft state
1759*
1760*/
6a6981fe 1761static void megasas_complete_outstanding_ioctls(struct megasas_instance *instance)
c8dd61ef
SS		 1762{
1763 int i;
1764 struct megasas_cmd *cmd_mfi;
1765 struct megasas_cmd_fusion *cmd_fusion;
1766 struct fusion_context *fusion = instance->ctrl_context;
1767
1768 /* Find all outstanding ioctls */
1769 if (fusion) {
1770 for (i = 0; i < instance->max_fw_cmds; i++) {
1771 cmd_fusion = fusion->cmd_list[i];
1772 if (cmd_fusion->sync_cmd_idx != (u32)ULONG_MAX) {
1773 cmd_mfi = instance->cmd_list[cmd_fusion->sync_cmd_idx];
1774 if (cmd_mfi->sync_cmd &&
1775 cmd_mfi->frame->hdr.cmd != MFI_CMD_ABORT)
1776 megasas_complete_cmd(instance,
1777 cmd_mfi, DID_OK);
1778 }
1779 }
1780 } else {
1781 for (i = 0; i < instance->max_fw_cmds; i++) {
1782 cmd_mfi = instance->cmd_list[i];
1783 if (cmd_mfi->sync_cmd && cmd_mfi->frame->hdr.cmd !=
1784 MFI_CMD_ABORT)
1785 megasas_complete_cmd(instance, cmd_mfi, DID_OK);
1786 }
1787 }
1788}
1789
1790
9c915a8c 1791void megaraid_sas_kill_hba(struct megasas_instance *instance)
39a98554 1792{
c8dd61ef
SS		 1793 /* Set critical error to block I/O & ioctls in case caller didn't */
1794 instance->adprecovery = MEGASAS_HW_CRITICAL_ERROR;
1795 /* Wait 1 second to ensure IO or ioctls in build have posted */
1796 msleep(1000);
39a98554 1797 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
c8dd61ef
SS		 1798 (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY) ||
1799 (instance->pdev->device == PCI_DEVICE_ID_LSI_FUSION) ||
1800 (instance->pdev->device == PCI_DEVICE_ID_LSI_PLASMA) ||
1801 (instance->pdev->device == PCI_DEVICE_ID_LSI_INVADER) ||
1802 (instance->pdev->device == PCI_DEVICE_ID_LSI_FURY)) {
da0dc9fb 1803 writel(MFI_STOP_ADP, &instance->reg_set->doorbell);
229fe47c 1804 /* Flush */
1805 readl(&instance->reg_set->doorbell);
1806 if (instance->mpio && instance->requestorId)
1807 memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS);
39a98554 1808 } else {
c8dd61ef
SS		 1809 writel(MFI_STOP_ADP,
1810 &instance->reg_set->inbound_doorbell);
9c915a8c 1811 }
c8dd61ef
SS		 1812 /* Complete outstanding ioctls when adapter is killed */
1813 megasas_complete_outstanding_ioctls(instance);
9c915a8c 1814}
1815
1816 /**
1817 * megasas_check_and_restore_queue_depth - Check if queue depth needs to be
1818 * restored to max value
1819 * @instance: Adapter soft state
1820 *
1821 */
1822void
1823megasas_check_and_restore_queue_depth(struct megasas_instance *instance)
1824{
1825 unsigned long flags;
ae09a6c1 1826
9c915a8c 1827 if (instance->flag & MEGASAS_FW_BUSY
c5daa6a9 1828 && time_after(jiffies, instance->last_time + 5 * HZ)
1829 && atomic_read(&instance->fw_outstanding) <
1830 instance->throttlequeuedepth + 1) {
9c915a8c 1831
1832 spin_lock_irqsave(instance->host->host_lock, flags);
1833 instance->flag &= ~MEGASAS_FW_BUSY;
9c915a8c 1834
ae09a6c1 1835 instance->host->can_queue = instance->max_scsi_cmds;
9c915a8c 1836 spin_unlock_irqrestore(instance->host->host_lock, flags);
39a98554 1837 }
1838}
1839
7343eb65 1840/**
1841 * megasas_complete_cmd_dpc - Returns FW's controller structure
1842 * @instance_addr: Address of adapter soft state
1843 *
1844 * Tasklet to complete cmds
1845 */
1846static void megasas_complete_cmd_dpc(unsigned long instance_addr)
1847{
1848 u32 producer;
1849 u32 consumer;
1850 u32 context;
1851 struct megasas_cmd *cmd;
1852 struct megasas_instance *instance =
1853 (struct megasas_instance *)instance_addr;
1854 unsigned long flags;
1855
1856 /* If we have already declared adapter dead, donot complete cmds */
da0dc9fb 1857 if (instance->adprecovery == MEGASAS_HW_CRITICAL_ERROR)
7343eb65 1858 return;
1859
1860 spin_lock_irqsave(&instance->completion_lock, flags);
1861
94cd65dd
SS		 1862 producer = le32_to_cpu(*instance->producer);
1863 consumer = le32_to_cpu(*instance->consumer);
7343eb65 1864
1865 while (consumer != producer) {
94cd65dd 1866 context = le32_to_cpu(instance->reply_queue[consumer]);
39a98554 1867 if (context >= instance->max_fw_cmds) {
1be18254 1868 dev_err(&instance->pdev->dev, "Unexpected context value %x\n",
39a98554 1869 context);
1870 BUG();
1871 }
7343eb65 1872
1873 cmd = instance->cmd_list[context];
1874
1875 megasas_complete_cmd(instance, cmd, DID_OK);
1876
1877 consumer++;
1878 if (consumer == (instance->max_fw_cmds + 1)) {
1879 consumer = 0;
1880 }
1881 }
1882
94cd65dd 1883 *instance->consumer = cpu_to_le32(producer);
7343eb65 1884
1885 spin_unlock_irqrestore(&instance->completion_lock, flags);
1886
1887 /*
1888 * Check if we can restore can_queue
1889 */
9c915a8c 1890 megasas_check_and_restore_queue_depth(instance);
7343eb65 1891}
1892
229fe47c 1893/**
1894 * megasas_start_timer - Initializes a timer object
1895 * @instance: Adapter soft state
1896 * @timer: timer object to be initialized
1897 * @fn: timer function
1898 * @interval: time interval between timer function call
1899 *
1900 */
1901void megasas_start_timer(struct megasas_instance *instance,
1902 struct timer_list *timer,
1903 void *fn, unsigned long interval)
1904{
1905 init_timer(timer);
1906 timer->expires = jiffies + interval;
1907 timer->data = (unsigned long)instance;
1908 timer->function = fn;
1909 add_timer(timer);
1910}
1911
707e09bd
YB		 1912static void
1913megasas_internal_reset_defer_cmds(struct megasas_instance *instance);
1914
1915static void
1916process_fw_state_change_wq(struct work_struct *work);
1917
1918void megasas_do_ocr(struct megasas_instance *instance)
1919{
1920 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS1064R) ||
1921 (instance->pdev->device == PCI_DEVICE_ID_DELL_PERC5) ||
1922 (instance->pdev->device == PCI_DEVICE_ID_LSI_VERDE_ZCR)) {
94cd65dd 1923 *instance->consumer = cpu_to_le32(MEGASAS_ADPRESET_INPROG_SIGN);
707e09bd 1924 }
d46a3ad6 1925 instance->instancet->disable_intr(instance);
707e09bd
YB		 1926 instance->adprecovery = MEGASAS_ADPRESET_SM_INFAULT;
1927 instance->issuepend_done = 0;
1928
1929 atomic_set(&instance->fw_outstanding, 0);
1930 megasas_internal_reset_defer_cmds(instance);
1931 process_fw_state_change_wq(&instance->work_init);
1932}
1933
4cbfea88
AR		 1934static int megasas_get_ld_vf_affiliation_111(struct megasas_instance *instance,
1935 int initial)
229fe47c 1936{
1937 struct megasas_cmd *cmd;
1938 struct megasas_dcmd_frame *dcmd;
229fe47c 1939 struct MR_LD_VF_AFFILIATION_111 *new_affiliation_111 = NULL;
229fe47c 1940 dma_addr_t new_affiliation_111_h;
1941 int ld, retval = 0;
1942 u8 thisVf;
1943
1944 cmd = megasas_get_cmd(instance);
1945
1946 if (!cmd) {
1be18254
BH		 1947 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_vf_affiliation_111:"
1948 "Failed to get cmd for scsi%d\n",
229fe47c 1949 instance->host->host_no);
1950 return -ENOMEM;
1951 }
1952
1953 dcmd = &cmd->frame->dcmd;
1954
4cbfea88 1955 if (!instance->vf_affiliation_111) {
1be18254
BH		 1956 dev_warn(&instance->pdev->dev, "SR-IOV: Couldn't get LD/VF "
1957 "affiliation for scsi%d\n", instance->host->host_no);
229fe47c 1958 megasas_return_cmd(instance, cmd);
1959 return -ENOMEM;
1960 }
1961
1962 if (initial)
229fe47c 1963 memset(instance->vf_affiliation_111, 0,
1964 sizeof(struct MR_LD_VF_AFFILIATION_111));
229fe47c 1965 else {
4cbfea88
AR		 1966 new_affiliation_111 =
1967 pci_alloc_consistent(instance->pdev,
1968 sizeof(struct MR_LD_VF_AFFILIATION_111),
1969 &new_affiliation_111_h);
1970 if (!new_affiliation_111) {
1be18254
BH		 1971 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate "
1972 "memory for new affiliation for scsi%d\n",
4cbfea88 1973 instance->host->host_no);
229fe47c 1974 megasas_return_cmd(instance, cmd);
1975 return -ENOMEM;
1976 }
4cbfea88
AR		 1977 memset(new_affiliation_111, 0,
1978 sizeof(struct MR_LD_VF_AFFILIATION_111));
229fe47c 1979 }
1980
1981 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
1982
1983 dcmd->cmd = MFI_CMD_DCMD;
2be2a988 1984 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
229fe47c 1985 dcmd->sge_count = 1;
2213a467 1986 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_BOTH);
229fe47c 1987 dcmd->timeout = 0;
1988 dcmd->pad_0 = 0;
2213a467
CH		 1989 dcmd->data_xfer_len =
1990 cpu_to_le32(sizeof(struct MR_LD_VF_AFFILIATION_111));
1991 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_VF_MAP_GET_ALL_LDS_111);
229fe47c 1992
4cbfea88
AR		 1993 if (initial)
1994 dcmd->sgl.sge32[0].phys_addr =
2213a467 1995 cpu_to_le32(instance->vf_affiliation_111_h);
229fe47c 1996 else
2213a467
CH		 1997 dcmd->sgl.sge32[0].phys_addr =
1998 cpu_to_le32(new_affiliation_111_h);
4cbfea88 1999
2213a467
CH		 2000 dcmd->sgl.sge32[0].length = cpu_to_le32(
2001 sizeof(struct MR_LD_VF_AFFILIATION_111));
229fe47c 2002
1be18254 2003 dev_warn(&instance->pdev->dev, "SR-IOV: Getting LD/VF affiliation for "
229fe47c 2004 "scsi%d\n", instance->host->host_no);
2005
2006 megasas_issue_blocked_cmd(instance, cmd, 0);
2007
2008 if (dcmd->cmd_status) {
1be18254
BH		 2009 dev_warn(&instance->pdev->dev, "SR-IOV: LD/VF affiliation DCMD"
2010 " failed with status 0x%x for scsi%d\n",
229fe47c 2011 dcmd->cmd_status, instance->host->host_no);
2012 retval = 1; /* Do a scan if we couldn't get affiliation */
2013 goto out;
2014 }
2015
2016 if (!initial) {
4cbfea88
AR		 2017 thisVf = new_affiliation_111->thisVf;
2018 for (ld = 0 ; ld < new_affiliation_111->vdCount; ld++)
2019 if (instance->vf_affiliation_111->map[ld].policy[thisVf] !=
2020 new_affiliation_111->map[ld].policy[thisVf]) {
1be18254
BH		 2021 dev_warn(&instance->pdev->dev, "SR-IOV: "
2022 "Got new LD/VF affiliation for scsi%d\n",
229fe47c 2023 instance->host->host_no);
4cbfea88
AR		 2024 memcpy(instance->vf_affiliation_111,
2025 new_affiliation_111,
2026 sizeof(struct MR_LD_VF_AFFILIATION_111));
229fe47c 2027 retval = 1;
2028 goto out;
2029 }
4cbfea88
AR		 2030 }
2031out:
2032 if (new_affiliation_111) {
2033 pci_free_consistent(instance->pdev,
2034 sizeof(struct MR_LD_VF_AFFILIATION_111),
2035 new_affiliation_111,
2036 new_affiliation_111_h);
2037 }
90dc9d98 2038
4026e9aa 2039 megasas_return_cmd(instance, cmd);
4cbfea88
AR		 2040
2041 return retval;
2042}
2043
2044static int megasas_get_ld_vf_affiliation_12(struct megasas_instance *instance,
2045 int initial)
2046{
2047 struct megasas_cmd *cmd;
2048 struct megasas_dcmd_frame *dcmd;
2049 struct MR_LD_VF_AFFILIATION *new_affiliation = NULL;
2050 struct MR_LD_VF_MAP *newmap = NULL, *savedmap = NULL;
2051 dma_addr_t new_affiliation_h;
2052 int i, j, retval = 0, found = 0, doscan = 0;
2053 u8 thisVf;
2054
2055 cmd = megasas_get_cmd(instance);
2056
2057 if (!cmd) {
1be18254
BH		 2058 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_vf_affiliation12: "
2059 "Failed to get cmd for scsi%d\n",
4cbfea88
AR		 2060 instance->host->host_no);
2061 return -ENOMEM;
2062 }
2063
2064 dcmd = &cmd->frame->dcmd;
2065
2066 if (!instance->vf_affiliation) {
1be18254
BH		 2067 dev_warn(&instance->pdev->dev, "SR-IOV: Couldn't get LD/VF "
2068 "affiliation for scsi%d\n", instance->host->host_no);
4cbfea88
AR		 2069 megasas_return_cmd(instance, cmd);
2070 return -ENOMEM;
2071 }
2072
2073 if (initial)
2074 memset(instance->vf_affiliation, 0, (MAX_LOGICAL_DRIVES + 1) *
2075 sizeof(struct MR_LD_VF_AFFILIATION));
2076 else {
2077 new_affiliation =
2078 pci_alloc_consistent(instance->pdev,
2079 (MAX_LOGICAL_DRIVES + 1) *
2080 sizeof(struct MR_LD_VF_AFFILIATION),
2081 &new_affiliation_h);
2082 if (!new_affiliation) {
1be18254
BH		 2083 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate "
2084 "memory for new affiliation for scsi%d\n",
4cbfea88
AR		 2085 instance->host->host_no);
2086 megasas_return_cmd(instance, cmd);
2087 return -ENOMEM;
2088 }
2089 memset(new_affiliation, 0, (MAX_LOGICAL_DRIVES + 1) *
2090 sizeof(struct MR_LD_VF_AFFILIATION));
2091 }
2092
2093 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
2094
2095 dcmd->cmd = MFI_CMD_DCMD;
2be2a988 2096 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
4cbfea88 2097 dcmd->sge_count = 1;
2213a467 2098 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_BOTH);
4cbfea88
AR		 2099 dcmd->timeout = 0;
2100 dcmd->pad_0 = 0;
2213a467
CH		 2101 dcmd->data_xfer_len = cpu_to_le32((MAX_LOGICAL_DRIVES + 1) *
2102 sizeof(struct MR_LD_VF_AFFILIATION));
2103 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_VF_MAP_GET_ALL_LDS);
4cbfea88
AR		 2104
2105 if (initial)
2213a467
CH		 2106 dcmd->sgl.sge32[0].phys_addr =
2107 cpu_to_le32(instance->vf_affiliation_h);
4cbfea88 2108 else
2213a467
CH		 2109 dcmd->sgl.sge32[0].phys_addr =
2110 cpu_to_le32(new_affiliation_h);
4cbfea88 2111
2213a467
CH		 2112 dcmd->sgl.sge32[0].length = cpu_to_le32((MAX_LOGICAL_DRIVES + 1) *
2113 sizeof(struct MR_LD_VF_AFFILIATION));
4cbfea88 2114
1be18254 2115 dev_warn(&instance->pdev->dev, "SR-IOV: Getting LD/VF affiliation for "
4cbfea88
AR		 2116 "scsi%d\n", instance->host->host_no);
2117
2118 megasas_issue_blocked_cmd(instance, cmd, 0);
2119
2120 if (dcmd->cmd_status) {
1be18254
BH		 2121 dev_warn(&instance->pdev->dev, "SR-IOV: LD/VF affiliation DCMD"
2122 " failed with status 0x%x for scsi%d\n",
4cbfea88
AR		 2123 dcmd->cmd_status, instance->host->host_no);
2124 retval = 1; /* Do a scan if we couldn't get affiliation */
2125 goto out;
2126 }
2127
2128 if (!initial) {
2129 if (!new_affiliation->ldCount) {
1be18254
BH		 2130 dev_warn(&instance->pdev->dev, "SR-IOV: Got new LD/VF "
2131 "affiliation for passive path for scsi%d\n",
4cbfea88
AR		 2132 instance->host->host_no);
2133 retval = 1;
2134 goto out;
2135 }
2136 newmap = new_affiliation->map;
2137 savedmap = instance->vf_affiliation->map;
2138 thisVf = new_affiliation->thisVf;
2139 for (i = 0 ; i < new_affiliation->ldCount; i++) {
2140 found = 0;
2141 for (j = 0; j < instance->vf_affiliation->ldCount;
2142 j++) {
2143 if (newmap->ref.targetId ==
2144 savedmap->ref.targetId) {
2145 found = 1;
2146 if (newmap->policy[thisVf] !=
2147 savedmap->policy[thisVf]) {
2148 doscan = 1;
2149 goto out;
2150 }
229fe47c 2151 }
2152 savedmap = (struct MR_LD_VF_MAP *)
2153 ((unsigned char *)savedmap +
2154 savedmap->size);
4cbfea88
AR		 2155 }
2156 if (!found && newmap->policy[thisVf] !=
2157 MR_LD_ACCESS_HIDDEN) {
2158 doscan = 1;
2159 goto out;
2160 }
2161 newmap = (struct MR_LD_VF_MAP *)
2162 ((unsigned char *)newmap + newmap->size);
2163 }
2164
2165 newmap = new_affiliation->map;
2166 savedmap = instance->vf_affiliation->map;
2167
2168 for (i = 0 ; i < instance->vf_affiliation->ldCount; i++) {
2169 found = 0;
2170 for (j = 0 ; j < new_affiliation->ldCount; j++) {
2171 if (savedmap->ref.targetId ==
2172 newmap->ref.targetId) {
2173 found = 1;
2174 if (savedmap->policy[thisVf] !=
2175 newmap->policy[thisVf]) {
2176 doscan = 1;
2177 goto out;
2178 }
2179 }
229fe47c 2180 newmap = (struct MR_LD_VF_MAP *)
2181 ((unsigned char *)newmap +
2182 newmap->size);
2183 }
4cbfea88
AR		 2184 if (!found && savedmap->policy[thisVf] !=
2185 MR_LD_ACCESS_HIDDEN) {
2186 doscan = 1;
2187 goto out;
2188 }
2189 savedmap = (struct MR_LD_VF_MAP *)
2190 ((unsigned char *)savedmap +
2191 savedmap->size);
229fe47c 2192 }
2193 }
2194out:
4cbfea88 2195 if (doscan) {
1be18254
BH		 2196 dev_warn(&instance->pdev->dev, "SR-IOV: Got new LD/VF "
2197 "affiliation for scsi%d\n", instance->host->host_no);
4cbfea88
AR		 2198 memcpy(instance->vf_affiliation, new_affiliation,
2199 new_affiliation->size);
2200 retval = 1;
229fe47c 2201 }
4cbfea88
AR		 2202
2203 if (new_affiliation)
2204 pci_free_consistent(instance->pdev,
2205 (MAX_LOGICAL_DRIVES + 1) *
2206 sizeof(struct MR_LD_VF_AFFILIATION),
2207 new_affiliation, new_affiliation_h);
4026e9aa 2208 megasas_return_cmd(instance, cmd);
229fe47c 2209
2210 return retval;
2211}
2212
4cbfea88
AR		 2213/* This function will get the current SR-IOV LD/VF affiliation */
2214static int megasas_get_ld_vf_affiliation(struct megasas_instance *instance,
2215 int initial)
2216{
2217 int retval;
2218
2219 if (instance->PlasmaFW111)
2220 retval = megasas_get_ld_vf_affiliation_111(instance, initial);
2221 else
2222 retval = megasas_get_ld_vf_affiliation_12(instance, initial);
2223 return retval;
2224}
2225
229fe47c 2226/* This function will tell FW to start the SR-IOV heartbeat */
2227int megasas_sriov_start_heartbeat(struct megasas_instance *instance,
2228 int initial)
2229{
2230 struct megasas_cmd *cmd;
2231 struct megasas_dcmd_frame *dcmd;
2232 int retval = 0;
2233
2234 cmd = megasas_get_cmd(instance);
2235
2236 if (!cmd) {
1be18254
BH		 2237 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_sriov_start_heartbeat: "
2238 "Failed to get cmd for scsi%d\n",
229fe47c 2239 instance->host->host_no);
2240 return -ENOMEM;
2241 }
2242
2243 dcmd = &cmd->frame->dcmd;
2244
2245 if (initial) {
2246 instance->hb_host_mem =
7c845eb5
JP		 2247 pci_zalloc_consistent(instance->pdev,
2248 sizeof(struct MR_CTRL_HB_HOST_MEM),
2249 &instance->hb_host_mem_h);
229fe47c 2250 if (!instance->hb_host_mem) {
1be18254
BH		 2251 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate"
2252 " memory for heartbeat host memory for scsi%d\n",
2253 instance->host->host_no);
229fe47c 2254 retval = -ENOMEM;
2255 goto out;
2256 }
229fe47c 2257 }
2258
2259 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
2260
2213a467 2261 dcmd->mbox.s[0] = cpu_to_le16(sizeof(struct MR_CTRL_HB_HOST_MEM));
229fe47c 2262 dcmd->cmd = MFI_CMD_DCMD;
2be2a988 2263 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
229fe47c 2264 dcmd->sge_count = 1;
2213a467 2265 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_BOTH);
229fe47c 2266 dcmd->timeout = 0;
2267 dcmd->pad_0 = 0;
2213a467
CH		 2268 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_CTRL_HB_HOST_MEM));
2269 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_SHARED_HOST_MEM_ALLOC);
2270 dcmd->sgl.sge32[0].phys_addr = cpu_to_le32(instance->hb_host_mem_h);
2271 dcmd->sgl.sge32[0].length = cpu_to_le32(sizeof(struct MR_CTRL_HB_HOST_MEM));
229fe47c 2272
1be18254 2273 dev_warn(&instance->pdev->dev, "SR-IOV: Starting heartbeat for scsi%d\n",
229fe47c 2274 instance->host->host_no);
2275
4026e9aa
SS		 2276 if (instance->ctrl_context && !instance->mask_interrupts)
2277 retval = megasas_issue_blocked_cmd(instance, cmd,
2278 MEGASAS_ROUTINE_WAIT_TIME_VF);
2279 else
2280 retval = megasas_issue_polled(instance, cmd);
229fe47c 2281
4026e9aa 2282 if (retval) {
2be2a988
SS		 2283 dev_warn(&instance->pdev->dev, "SR-IOV: MR_DCMD_CTRL_SHARED_HOST"
2284 "_MEM_ALLOC DCMD %s for scsi%d\n",
2285 (dcmd->cmd_status == MFI_STAT_INVALID_STATUS) ?
2286 "timed out" : "failed", instance->host->host_no);
229fe47c 2287 retval = 1;
229fe47c 2288 }
2289
2290out:
2291 megasas_return_cmd(instance, cmd);
2292
2293 return retval;
2294}
2295
2296/* Handler for SR-IOV heartbeat */
2297void megasas_sriov_heartbeat_handler(unsigned long instance_addr)
2298{
2299 struct megasas_instance *instance =
2300 (struct megasas_instance *)instance_addr;
2301
2302 if (instance->hb_host_mem->HB.fwCounter !=
2303 instance->hb_host_mem->HB.driverCounter) {
2304 instance->hb_host_mem->HB.driverCounter =
2305 instance->hb_host_mem->HB.fwCounter;
2306 mod_timer(&instance->sriov_heartbeat_timer,
2307 jiffies + MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF);
2308 } else {
1be18254 2309 dev_warn(&instance->pdev->dev, "SR-IOV: Heartbeat never "
229fe47c 2310 "completed for scsi%d\n", instance->host->host_no);
2311 schedule_work(&instance->work_init);
2312 }
2313}
2314
c4a3e0a5
BS		 2315/**
2316 * megasas_wait_for_outstanding - Wait for all outstanding cmds
2317 * @instance: Adapter soft state
2318 *
25985edc 2319 * This function waits for up to MEGASAS_RESET_WAIT_TIME seconds for FW to
c4a3e0a5
BS		 2320 * complete all its outstanding commands. Returns error if one or more IOs
2321 * are pending after this time period. It also marks the controller dead.
2322 */
2323static int megasas_wait_for_outstanding(struct megasas_instance *instance)
2324{
2325 int i;
39a98554 2326 u32 reset_index;
c4a3e0a5 2327 u32 wait_time = MEGASAS_RESET_WAIT_TIME;
39a98554 2328 u8 adprecovery;
2329 unsigned long flags;
2330 struct list_head clist_local;
2331 struct megasas_cmd *reset_cmd;
707e09bd
YB		 2332 u32 fw_state;
2333 u8 kill_adapter_flag;
39a98554 2334
2335 spin_lock_irqsave(&instance->hba_lock, flags);
2336 adprecovery = instance->adprecovery;
2337 spin_unlock_irqrestore(&instance->hba_lock, flags);
2338
2339 if (adprecovery != MEGASAS_HBA_OPERATIONAL) {
2340
2341 INIT_LIST_HEAD(&clist_local);
2342 spin_lock_irqsave(&instance->hba_lock, flags);
2343 list_splice_init(&instance->internal_reset_pending_q,
2344 &clist_local);
2345 spin_unlock_irqrestore(&instance->hba_lock, flags);
2346
1be18254 2347 dev_notice(&instance->pdev->dev, "HBA reset wait ...\n");
39a98554 2348 for (i = 0; i < wait_time; i++) {
2349 msleep(1000);
2350 spin_lock_irqsave(&instance->hba_lock, flags);
2351 adprecovery = instance->adprecovery;
2352 spin_unlock_irqrestore(&instance->hba_lock, flags);
2353 if (adprecovery == MEGASAS_HBA_OPERATIONAL)
2354 break;
2355 }
2356
2357 if (adprecovery != MEGASAS_HBA_OPERATIONAL) {
1be18254 2358 dev_notice(&instance->pdev->dev, "reset: Stopping HBA.\n");
39a98554 2359 spin_lock_irqsave(&instance->hba_lock, flags);
da0dc9fb 2360 instance->adprecovery = MEGASAS_HW_CRITICAL_ERROR;
39a98554 2361 spin_unlock_irqrestore(&instance->hba_lock, flags);
2362 return FAILED;
2363 }
2364
da0dc9fb 2365 reset_index = 0;
39a98554 2366 while (!list_empty(&clist_local)) {
da0dc9fb 2367 reset_cmd = list_entry((&clist_local)->next,
39a98554 2368 struct megasas_cmd, list);
2369 list_del_init(&reset_cmd->list);
2370 if (reset_cmd->scmd) {
2371 reset_cmd->scmd->result = DID_RESET << 16;
1be18254 2372 dev_notice(&instance->pdev->dev, "%d:%p reset [%02x]\n",
39a98554 2373 reset_index, reset_cmd,
5cd049a5 2374 reset_cmd->scmd->cmnd[0]);
39a98554 2375
2376 reset_cmd->scmd->scsi_done(reset_cmd->scmd);
2377 megasas_return_cmd(instance, reset_cmd);
2378 } else if (reset_cmd->sync_cmd) {
1be18254 2379 dev_notice(&instance->pdev->dev, "%p synch cmds"
39a98554 2380 "reset queue\n",
2381 reset_cmd);
2382
2be2a988 2383 reset_cmd->cmd_status_drv = MFI_STAT_INVALID_STATUS;
39a98554 2384 instance->instancet->fire_cmd(instance,
2385 reset_cmd->frame_phys_addr,
2386 0, instance->reg_set);
2387 } else {
1be18254 2388 dev_notice(&instance->pdev->dev, "%p unexpected"
39a98554 2389 "cmds lst\n",
2390 reset_cmd);
2391 }
2392 reset_index++;
2393 }
2394
2395 return SUCCESS;
2396 }
c4a3e0a5 2397
c007b8b2 2398 for (i = 0; i < resetwaittime; i++) {
e4a082c7
SP		 2399 int outstanding = atomic_read(&instance->fw_outstanding);
2400
2401 if (!outstanding)
c4a3e0a5
BS		 2402 break;
2403
2404 if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) {
1be18254 2405 dev_notice(&instance->pdev->dev, "[%2d]waiting for %d "
e4a082c7 2406 "commands to complete\n",i,outstanding);
7343eb65 2407 /*
2408 * Call cmd completion routine. Cmd to be
2409 * be completed directly without depending on isr.
2410 */
2411 megasas_complete_cmd_dpc((unsigned long)instance);
c4a3e0a5
BS		 2412 }
2413
2414 msleep(1000);
2415 }
2416
707e09bd
YB		 2417 i = 0;
2418 kill_adapter_flag = 0;
2419 do {
2420 fw_state = instance->instancet->read_fw_status_reg(
2421 instance->reg_set) & MFI_STATE_MASK;
2422 if ((fw_state == MFI_STATE_FAULT) &&
2423 (instance->disableOnlineCtrlReset == 0)) {
2424 if (i == 3) {
2425 kill_adapter_flag = 2;
2426 break;
2427 }
2428 megasas_do_ocr(instance);
2429 kill_adapter_flag = 1;
2430
2431 /* wait for 1 secs to let FW finish the pending cmds */
2432 msleep(1000);
2433 }
2434 i++;
2435 } while (i <= 3);
2436
da0dc9fb 2437 if (atomic_read(&instance->fw_outstanding) && !kill_adapter_flag) {
707e09bd 2438 if (instance->disableOnlineCtrlReset == 0) {
707e09bd
YB		 2439 megasas_do_ocr(instance);
2440
2441 /* wait for 5 secs to let FW finish the pending cmds */
2442 for (i = 0; i < wait_time; i++) {
2443 int outstanding =
2444 atomic_read(&instance->fw_outstanding);
2445 if (!outstanding)
2446 return SUCCESS;
2447 msleep(1000);
2448 }
2449 }
2450 }
2451
2452 if (atomic_read(&instance->fw_outstanding) ||
2453 (kill_adapter_flag == 2)) {
1be18254 2454 dev_notice(&instance->pdev->dev, "pending cmds after reset\n");
e3bbff9f 2455 /*
da0dc9fb
BH		 2456 * Send signal to FW to stop processing any pending cmds.
2457 * The controller will be taken offline by the OS now.
2458 */
0c79e681
YB		 2459 if ((instance->pdev->device ==
2460 PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
2461 (instance->pdev->device ==
2462 PCI_DEVICE_ID_LSI_SAS0071SKINNY)) {
2463 writel(MFI_STOP_ADP,
9c915a8c 2464 &instance->reg_set->doorbell);
0c79e681
YB		 2465 } else {
2466 writel(MFI_STOP_ADP,
e3bbff9f 2467 &instance->reg_set->inbound_doorbell);
0c79e681 2468 }
658dcedb 2469 megasas_dump_pending_frames(instance);
39a98554 2470 spin_lock_irqsave(&instance->hba_lock, flags);
da0dc9fb 2471 instance->adprecovery = MEGASAS_HW_CRITICAL_ERROR;
39a98554 2472 spin_unlock_irqrestore(&instance->hba_lock, flags);
c4a3e0a5
BS		 2473 return FAILED;
2474 }
2475
1be18254 2476 dev_notice(&instance->pdev->dev, "no pending cmds after reset\n");
39a98554 2477
c4a3e0a5
BS		 2478 return SUCCESS;
2479}
2480
2481/**
2482 * megasas_generic_reset - Generic reset routine
2483 * @scmd: Mid-layer SCSI command
2484 *
2485 * This routine implements a generic reset handler for device, bus and host
2486 * reset requests. Device, bus and host specific reset handlers can use this
2487 * function after they do their specific tasks.
2488 */
2489static int megasas_generic_reset(struct scsi_cmnd *scmd)
2490{
2491 int ret_val;
2492 struct megasas_instance *instance;
2493
2494 instance = (struct megasas_instance *)scmd->device->host->hostdata;
2495
5cd049a5
CH		 2496 scmd_printk(KERN_NOTICE, scmd, "megasas: RESET cmd=%x retries=%x\n",
2497 scmd->cmnd[0], scmd->retries);
c4a3e0a5 2498
39a98554 2499 if (instance->adprecovery == MEGASAS_HW_CRITICAL_ERROR) {
1be18254 2500 dev_err(&instance->pdev->dev, "cannot recover from previous reset failures\n");
c4a3e0a5
BS		 2501 return FAILED;
2502 }
2503
c4a3e0a5 2504 ret_val = megasas_wait_for_outstanding(instance);
c4a3e0a5 2505 if (ret_val == SUCCESS)
1be18254 2506 dev_notice(&instance->pdev->dev, "reset successful\n");
c4a3e0a5 2507 else
1be18254 2508 dev_err(&instance->pdev->dev, "failed to do reset\n");
c4a3e0a5 2509
c4a3e0a5
BS		 2510 return ret_val;
2511}
2512
05e9ebbe
SP		 2513/**
2514 * megasas_reset_timer - quiesce the adapter if required
2515 * @scmd: scsi cmnd
2516 *
2517 * Sets the FW busy flag and reduces the host->can_queue if the
2518 * cmd has not been completed within the timeout period.
2519 */
2520static enum
242f9dcb 2521blk_eh_timer_return megasas_reset_timer(struct scsi_cmnd *scmd)
05e9ebbe 2522{
05e9ebbe
SP		 2523 struct megasas_instance *instance;
2524 unsigned long flags;
2525
2526 if (time_after(jiffies, scmd->jiffies_at_alloc +
2527 (MEGASAS_DEFAULT_CMD_TIMEOUT * 2) * HZ)) {
242f9dcb 2528 return BLK_EH_NOT_HANDLED;
05e9ebbe
SP		 2529 }
2530
f575c5d3 2531 instance = (struct megasas_instance *)scmd->device->host->hostdata;
05e9ebbe
SP		 2532 if (!(instance->flag & MEGASAS_FW_BUSY)) {
2533 /* FW is busy, throttle IO */
2534 spin_lock_irqsave(instance->host->host_lock, flags);
2535
c5daa6a9 2536 instance->host->can_queue = instance->throttlequeuedepth;
05e9ebbe
SP		 2537 instance->last_time = jiffies;
2538 instance->flag |= MEGASAS_FW_BUSY;
2539
2540 spin_unlock_irqrestore(instance->host->host_lock, flags);
2541 }
242f9dcb 2542 return BLK_EH_RESET_TIMER;
05e9ebbe
SP		 2543}
2544
c4a3e0a5
BS		 2545/**
2546 * megasas_reset_device - Device reset handler entry point
2547 */
2548static int megasas_reset_device(struct scsi_cmnd *scmd)
2549{
c4a3e0a5
BS		 2550 /*
2551 * First wait for all commands to complete
2552 */
da0dc9fb 2553 return megasas_generic_reset(scmd);
c4a3e0a5
BS		 2554}
2555
2556/**
2557 * megasas_reset_bus_host - Bus & host reset handler entry point
2558 */
2559static int megasas_reset_bus_host(struct scsi_cmnd *scmd)
2560{
2561 int ret;
9c915a8c 2562 struct megasas_instance *instance;
da0dc9fb 2563
9c915a8c 2564 instance = (struct megasas_instance *)scmd->device->host->hostdata;
c4a3e0a5
BS		 2565
2566 /*
80682fa9 2567 * First wait for all commands to complete
c4a3e0a5 2568 */
36807e67 2569 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_FUSION) ||
229fe47c 2570 (instance->pdev->device == PCI_DEVICE_ID_LSI_PLASMA) ||
21d3c710
SS		 2571 (instance->pdev->device == PCI_DEVICE_ID_LSI_INVADER) ||
2572 (instance->pdev->device == PCI_DEVICE_ID_LSI_FURY))
229fe47c 2573 ret = megasas_reset_fusion(scmd->device->host, 1);
9c915a8c 2574 else
2575 ret = megasas_generic_reset(scmd);
c4a3e0a5
BS		 2576
2577 return ret;
2578}
2579
cf62a0a5
SP		 2580/**
2581 * megasas_bios_param - Returns disk geometry for a disk
da0dc9fb 2582 * @sdev: device handle
cf62a0a5
SP		 2583 * @bdev: block device
2584 * @capacity: drive capacity
2585 * @geom: geometry parameters
2586 */
2587static int
2588megasas_bios_param(struct scsi_device *sdev, struct block_device *bdev,
2589 sector_t capacity, int geom[])
2590{
2591 int heads;
2592 int sectors;
2593 sector_t cylinders;
2594 unsigned long tmp;
da0dc9fb 2595
cf62a0a5
SP		 2596 /* Default heads (64) & sectors (32) */
2597 heads = 64;
2598 sectors = 32;
2599
2600 tmp = heads * sectors;
2601 cylinders = capacity;
2602
2603 sector_div(cylinders, tmp);
2604
2605 /*
2606 * Handle extended translation size for logical drives > 1Gb
2607 */
2608
2609 if (capacity >= 0x200000) {
2610 heads = 255;
2611 sectors = 63;
2612 tmp = heads*sectors;
2613 cylinders = capacity;
2614 sector_div(cylinders, tmp);
2615 }
2616
2617 geom[0] = heads;
2618 geom[1] = sectors;
2619 geom[2] = cylinders;
2620
2621 return 0;
2622}
2623
7e8a75f4
YB		 2624static void megasas_aen_polling(struct work_struct *work);
2625
c4a3e0a5
BS		 2626/**
2627 * megasas_service_aen - Processes an event notification
2628 * @instance: Adapter soft state
2629 * @cmd: AEN command completed by the ISR
2630 *
2631 * For AEN, driver sends a command down to FW that is held by the FW till an
2632 * event occurs. When an event of interest occurs, FW completes the command
2633 * that it was previously holding.
2634 *
2635 * This routines sends SIGIO signal to processes that have registered with the
2636 * driver for AEN.
2637 */
2638static void
2639megasas_service_aen(struct megasas_instance *instance, struct megasas_cmd *cmd)
2640{
c3518837 2641 unsigned long flags;
da0dc9fb 2642
c4a3e0a5
BS		 2643 /*
2644 * Don't signal app if it is just an aborted previously registered aen
2645 */
c3518837
YB		 2646 if ((!cmd->abort_aen) && (instance->unload == 0)) {
2647 spin_lock_irqsave(&poll_aen_lock, flags);
2648 megasas_poll_wait_aen = 1;
2649 spin_unlock_irqrestore(&poll_aen_lock, flags);
2650 wake_up(&megasas_poll_wait);
c4a3e0a5 2651 kill_fasync(&megasas_async_queue, SIGIO, POLL_IN);
c3518837 2652 }
c4a3e0a5
BS		 2653 else
2654 cmd->abort_aen = 0;
2655
2656 instance->aen_cmd = NULL;
90dc9d98 2657
4026e9aa 2658 megasas_return_cmd(instance, cmd);
7e8a75f4 2659
39a98554 2660 if ((instance->unload == 0) &&
2661 ((instance->issuepend_done == 1))) {
7e8a75f4 2662 struct megasas_aen_event *ev;
da0dc9fb 2663
7e8a75f4
YB		 2664 ev = kzalloc(sizeof(*ev), GFP_ATOMIC);
2665 if (!ev) {
1be18254 2666 dev_err(&instance->pdev->dev, "megasas_service_aen: out of memory\n");
7e8a75f4
YB		 2667 } else {
2668 ev->instance = instance;
2669 instance->ev = ev;
c1d390d8
XF		 2670 INIT_DELAYED_WORK(&ev->hotplug_work,
2671 megasas_aen_polling);
2672 schedule_delayed_work(&ev->hotplug_work, 0);
7e8a75f4
YB		 2673 }
2674 }
c4a3e0a5
BS		 2675}
2676
fc62b3fc
SS		 2677static ssize_t
2678megasas_fw_crash_buffer_store(struct device *cdev,
2679 struct device_attribute *attr, const char *buf, size_t count)
2680{
2681 struct Scsi_Host *shost = class_to_shost(cdev);
2682 struct megasas_instance *instance =
2683 (struct megasas_instance *) shost->hostdata;
2684 int val = 0;
2685 unsigned long flags;
2686
2687 if (kstrtoint(buf, 0, &val) != 0)
2688 return -EINVAL;
2689
2690 spin_lock_irqsave(&instance->crashdump_lock, flags);
2691 instance->fw_crash_buffer_offset = val;
2692 spin_unlock_irqrestore(&instance->crashdump_lock, flags);
2693 return strlen(buf);
2694}
2695
2696static ssize_t
2697megasas_fw_crash_buffer_show(struct device *cdev,
2698 struct device_attribute *attr, char *buf)
2699{
2700 struct Scsi_Host *shost = class_to_shost(cdev);
2701 struct megasas_instance *instance =
2702 (struct megasas_instance *) shost->hostdata;
2703 u32 size;
2704 unsigned long buff_addr;
2705 unsigned long dmachunk = CRASH_DMA_BUF_SIZE;
2706 unsigned long src_addr;
2707 unsigned long flags;
2708 u32 buff_offset;
2709
2710 spin_lock_irqsave(&instance->crashdump_lock, flags);
2711 buff_offset = instance->fw_crash_buffer_offset;
2712 if (!instance->crash_dump_buf &&
2713 !((instance->fw_crash_state == AVAILABLE) ||
2714 (instance->fw_crash_state == COPYING))) {
2715 dev_err(&instance->pdev->dev,
2716 "Firmware crash dump is not available\n");
2717 spin_unlock_irqrestore(&instance->crashdump_lock, flags);
2718 return -EINVAL;
2719 }
2720
2721 buff_addr = (unsigned long) buf;
2722
da0dc9fb 2723 if (buff_offset > (instance->fw_crash_buffer_size * dmachunk)) {
fc62b3fc
SS		 2724 dev_err(&instance->pdev->dev,
2725 "Firmware crash dump offset is out of range\n");
2726 spin_unlock_irqrestore(&instance->crashdump_lock, flags);
2727 return 0;
2728 }
2729
2730 size = (instance->fw_crash_buffer_size * dmachunk) - buff_offset;
2731 size = (size >= PAGE_SIZE) ? (PAGE_SIZE - 1) : size;
2732
2733 src_addr = (unsigned long)instance->crash_buf[buff_offset / dmachunk] +
2734 (buff_offset % dmachunk);
da0dc9fb 2735 memcpy(buf, (void *)src_addr, size);
fc62b3fc
SS		 2736 spin_unlock_irqrestore(&instance->crashdump_lock, flags);
2737
2738 return size;
2739}
2740
2741static ssize_t
2742megasas_fw_crash_buffer_size_show(struct device *cdev,
2743 struct device_attribute *attr, char *buf)
2744{
2745 struct Scsi_Host *shost = class_to_shost(cdev);
2746 struct megasas_instance *instance =
2747 (struct megasas_instance *) shost->hostdata;
2748
2749 return snprintf(buf, PAGE_SIZE, "%ld\n", (unsigned long)
2750 ((instance->fw_crash_buffer_size) * 1024 * 1024)/PAGE_SIZE);
2751}
2752
2753static ssize_t
2754megasas_fw_crash_state_store(struct device *cdev,
2755 struct device_attribute *attr, const char *buf, size_t count)
2756{
2757 struct Scsi_Host *shost = class_to_shost(cdev);
2758 struct megasas_instance *instance =
2759 (struct megasas_instance *) shost->hostdata;
2760 int val = 0;
2761 unsigned long flags;
2762
2763 if (kstrtoint(buf, 0, &val) != 0)
2764 return -EINVAL;
2765
2766 if ((val <= AVAILABLE || val > COPY_ERROR)) {
2767 dev_err(&instance->pdev->dev, "application updates invalid "
2768 "firmware crash state\n");
2769 return -EINVAL;
2770 }
2771
2772 instance->fw_crash_state = val;
2773
2774 if ((val == COPIED) || (val == COPY_ERROR)) {
2775 spin_lock_irqsave(&instance->crashdump_lock, flags);
2776 megasas_free_host_crash_buffer(instance);
2777 spin_unlock_irqrestore(&instance->crashdump_lock, flags);
2778 if (val == COPY_ERROR)
2779 dev_info(&instance->pdev->dev, "application failed to "
2780 "copy Firmware crash dump\n");
2781 else
2782 dev_info(&instance->pdev->dev, "Firmware crash dump "
2783 "copied successfully\n");
2784 }
2785 return strlen(buf);
2786}
2787
2788static ssize_t
2789megasas_fw_crash_state_show(struct device *cdev,
2790 struct device_attribute *attr, char *buf)
2791{
2792 struct Scsi_Host *shost = class_to_shost(cdev);
2793 struct megasas_instance *instance =
2794 (struct megasas_instance *) shost->hostdata;
da0dc9fb 2795
fc62b3fc
SS		 2796 return snprintf(buf, PAGE_SIZE, "%d\n", instance->fw_crash_state);
2797}
2798
2799static ssize_t
2800megasas_page_size_show(struct device *cdev,
2801 struct device_attribute *attr, char *buf)
2802{
2803 return snprintf(buf, PAGE_SIZE, "%ld\n", (unsigned long)PAGE_SIZE - 1);
2804}
2805
2806static DEVICE_ATTR(fw_crash_buffer, S_IRUGO | S_IWUSR,
2807 megasas_fw_crash_buffer_show, megasas_fw_crash_buffer_store);
2808static DEVICE_ATTR(fw_crash_buffer_size, S_IRUGO,
2809 megasas_fw_crash_buffer_size_show, NULL);
2810static DEVICE_ATTR(fw_crash_state, S_IRUGO | S_IWUSR,
2811 megasas_fw_crash_state_show, megasas_fw_crash_state_store);
2812static DEVICE_ATTR(page_size, S_IRUGO,
2813 megasas_page_size_show, NULL);
2814
2815struct device_attribute *megaraid_host_attrs[] = {
2816 &dev_attr_fw_crash_buffer_size,
2817 &dev_attr_fw_crash_buffer,
2818 &dev_attr_fw_crash_state,
2819 &dev_attr_page_size,
2820 NULL,
2821};
2822
c4a3e0a5
BS		 2823/*
2824 * Scsi host template for megaraid_sas driver
2825 */
2826static struct scsi_host_template megasas_template = {
2827
2828 .module = THIS_MODULE,
43cd7fe4 2829 .name = "Avago SAS based MegaRAID driver",
c4a3e0a5 2830 .proc_name = "megaraid_sas",
147aab6a 2831 .slave_configure = megasas_slave_configure,
044833b5 2832 .slave_alloc = megasas_slave_alloc,
c4a3e0a5
BS		 2833 .queuecommand = megasas_queue_command,
2834 .eh_device_reset_handler = megasas_reset_device,
2835 .eh_bus_reset_handler = megasas_reset_bus_host,
2836 .eh_host_reset_handler = megasas_reset_bus_host,
05e9ebbe 2837 .eh_timed_out = megasas_reset_timer,
fc62b3fc 2838 .shost_attrs = megaraid_host_attrs,
cf62a0a5 2839 .bios_param = megasas_bios_param,
c4a3e0a5 2840 .use_clustering = ENABLE_CLUSTERING,
db5ed4df 2841 .change_queue_depth = scsi_change_queue_depth,
54b2b50c 2842 .no_write_same = 1,
c4a3e0a5
BS		 2843};
2844
2845/**
2846 * megasas_complete_int_cmd - Completes an internal command
2847 * @instance: Adapter soft state
2848 * @cmd: Command to be completed
2849 *
2850 * The megasas_issue_blocked_cmd() function waits for a command to complete
2851 * after it issues a command. This function wakes up that waiting routine by
2852 * calling wake_up() on the wait queue.
2853 */
2854static void
2855megasas_complete_int_cmd(struct megasas_instance *instance,
2856 struct megasas_cmd *cmd)
2857{
2be2a988 2858 cmd->cmd_status_drv = cmd->frame->io.cmd_status;
c4a3e0a5
BS		 2859 wake_up(&instance->int_cmd_wait_q);
2860}
2861
2862/**
2863 * megasas_complete_abort - Completes aborting a command
2864 * @instance: Adapter soft state
2865 * @cmd: Cmd that was issued to abort another cmd
2866 *
0d49016b 2867 * The megasas_issue_blocked_abort_cmd() function waits on abort_cmd_wait_q
2868 * after it issues an abort on a previously issued command. This function
c4a3e0a5
BS		 2869 * wakes up all functions waiting on the same wait queue.
2870 */
2871static void
2872megasas_complete_abort(struct megasas_instance *instance,
2873 struct megasas_cmd *cmd)
2874{
2875 if (cmd->sync_cmd) {
2876 cmd->sync_cmd = 0;
2be2a988 2877 cmd->cmd_status_drv = 0;
c4a3e0a5
BS		 2878 wake_up(&instance->abort_cmd_wait_q);
2879 }
c4a3e0a5
BS		 2880}
2881
c4a3e0a5
BS		 2882/**
2883 * megasas_complete_cmd - Completes a command
2884 * @instance: Adapter soft state
2885 * @cmd: Command to be completed
0d49016b 2886 * @alt_status: If non-zero, use this value as status to
da0dc9fb
BH		 2887 * SCSI mid-layer instead of the value returned
2888 * by the FW. This should be used if caller wants
2889 * an alternate status (as in the case of aborted
2890 * commands)
c4a3e0a5 2891 */
9c915a8c 2892void
c4a3e0a5
BS		 2893megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd,
2894 u8 alt_status)
2895{
2896 int exception = 0;
2897 struct megasas_header *hdr = &cmd->frame->hdr;
c3518837 2898 unsigned long flags;
9c915a8c 2899 struct fusion_context *fusion = instance->ctrl_context;
3761cb4c 2900 u32 opcode, status;
c4a3e0a5 2901
39a98554 2902 /* flag for the retry reset */
2903 cmd->retry_for_fw_reset = 0;
2904
05e9ebbe
SP		 2905 if (cmd->scmd)
2906 cmd->scmd->SCp.ptr = NULL;
c4a3e0a5
BS		 2907
2908 switch (hdr->cmd) {
e5f93a36 2909 case MFI_CMD_INVALID:
2910 /* Some older 1068 controller FW may keep a pended
2911 MR_DCMD_CTRL_EVENT_GET_INFO left over from the main kernel
2912 when booting the kdump kernel. Ignore this command to
2913 prevent a kernel panic on shutdown of the kdump kernel. */
1be18254
BH		 2914 dev_warn(&instance->pdev->dev, "MFI_CMD_INVALID command "
2915 "completed\n");
2916 dev_warn(&instance->pdev->dev, "If you have a controller "
2917 "other than PERC5, please upgrade your firmware\n");
e5f93a36 2918 break;
c4a3e0a5
BS		 2919 case MFI_CMD_PD_SCSI_IO:
2920 case MFI_CMD_LD_SCSI_IO:
2921
2922 /*
2923 * MFI_CMD_PD_SCSI_IO and MFI_CMD_LD_SCSI_IO could have been
2924 * issued either through an IO path or an IOCTL path. If it
2925 * was via IOCTL, we will send it to internal completion.
2926 */
2927 if (cmd->sync_cmd) {
2928 cmd->sync_cmd = 0;
2929 megasas_complete_int_cmd(instance, cmd);
2930 break;
2931 }
2932
c4a3e0a5
BS		 2933 case MFI_CMD_LD_READ:
2934 case MFI_CMD_LD_WRITE:
2935
2936 if (alt_status) {
2937 cmd->scmd->result = alt_status << 16;
2938 exception = 1;
2939 }
2940
2941 if (exception) {
2942
e4a082c7 2943 atomic_dec(&instance->fw_outstanding);
c4a3e0a5 2944
155d98f0 2945 scsi_dma_unmap(cmd->scmd);
c4a3e0a5
BS		 2946 cmd->scmd->scsi_done(cmd->scmd);
2947 megasas_return_cmd(instance, cmd);
2948
2949 break;
2950 }
2951
2952 switch (hdr->cmd_status) {
2953
2954 case MFI_STAT_OK:
2955 cmd->scmd->result = DID_OK << 16;
2956 break;
2957
2958 case MFI_STAT_SCSI_IO_FAILED:
2959 case MFI_STAT_LD_INIT_IN_PROGRESS:
2960 cmd->scmd->result =
2961 (DID_ERROR << 16) | hdr->scsi_status;
2962 break;
2963
2964 case MFI_STAT_SCSI_DONE_WITH_ERROR:
2965
2966 cmd->scmd->result = (DID_OK << 16) | hdr->scsi_status;
2967
2968 if (hdr->scsi_status == SAM_STAT_CHECK_CONDITION) {
2969 memset(cmd->scmd->sense_buffer, 0,
2970 SCSI_SENSE_BUFFERSIZE);
2971 memcpy(cmd->scmd->sense_buffer, cmd->sense,
2972 hdr->sense_len);
2973
2974 cmd->scmd->result |= DRIVER_SENSE << 24;
2975 }
2976
2977 break;
2978
2979 case MFI_STAT_LD_OFFLINE:
2980 case MFI_STAT_DEVICE_NOT_FOUND:
2981 cmd->scmd->result = DID_BAD_TARGET << 16;
2982 break;
2983
2984 default:
1be18254 2985 dev_printk(KERN_DEBUG, &instance->pdev->dev, "MFI FW status %#x\n",
c4a3e0a5
BS		 2986 hdr->cmd_status);
2987 cmd->scmd->result = DID_ERROR << 16;
2988 break;
2989 }
2990
e4a082c7 2991 atomic_dec(&instance->fw_outstanding);
c4a3e0a5 2992
155d98f0 2993 scsi_dma_unmap(cmd->scmd);
c4a3e0a5
BS		 2994 cmd->scmd->scsi_done(cmd->scmd);
2995 megasas_return_cmd(instance, cmd);
2996
2997 break;
2998
2999 case MFI_CMD_SMP:
3000 case MFI_CMD_STP:
3001 case MFI_CMD_DCMD:
94cd65dd 3002 opcode = le32_to_cpu(cmd->frame->dcmd.opcode);
9c915a8c 3003 /* Check for LD map update */
94cd65dd
SS		 3004 if ((opcode == MR_DCMD_LD_MAP_GET_INFO)
3005 && (cmd->frame->dcmd.mbox.b[1] == 1)) {
bc93d425 3006 fusion->fast_path_io = 0;
9c915a8c 3007 spin_lock_irqsave(instance->host->host_lock, flags);
3761cb4c 3008 instance->map_update_cmd = NULL;
9c915a8c 3009 if (cmd->frame->hdr.cmd_status != 0) {
3010 if (cmd->frame->hdr.cmd_status !=
3011 MFI_STAT_NOT_FOUND)
1be18254 3012 dev_warn(&instance->pdev->dev, "map syncfailed, status = 0x%x\n",
9c915a8c 3013 cmd->frame->hdr.cmd_status);
3014 else {
4026e9aa 3015 megasas_return_cmd(instance, cmd);
9c915a8c 3016 spin_unlock_irqrestore(
3017 instance->host->host_lock,
3018 flags);
3019 break;
3020 }
3021 } else
3022 instance->map_id++;
4026e9aa 3023 megasas_return_cmd(instance, cmd);
bc93d425
SS		 3024
3025 /*
3026 * Set fast path IO to ZERO.
3027 * Validate Map will set proper value.
3028 * Meanwhile all IOs will go as LD IO.
3029 */
3030 if (MR_ValidateMapInfo(instance))
9c915a8c 3031 fusion->fast_path_io = 1;
3032 else
3033 fusion->fast_path_io = 0;
3034 megasas_sync_map_info(instance);
3035 spin_unlock_irqrestore(instance->host->host_lock,
3036 flags);
3037 break;
3038 }
94cd65dd
SS		 3039 if (opcode == MR_DCMD_CTRL_EVENT_GET_INFO ||
3040 opcode == MR_DCMD_CTRL_EVENT_GET) {
c3518837
YB		 3041 spin_lock_irqsave(&poll_aen_lock, flags);
3042 megasas_poll_wait_aen = 0;
3043 spin_unlock_irqrestore(&poll_aen_lock, flags);
3044 }
c4a3e0a5 3045
3761cb4c 3046 /* FW has an updated PD sequence */
3047 if ((opcode == MR_DCMD_SYSTEM_PD_MAP_GET_INFO) &&
3048 (cmd->frame->dcmd.mbox.b[0] == 1)) {
3049
3050 spin_lock_irqsave(instance->host->host_lock, flags);
3051 status = cmd->frame->hdr.cmd_status;
3052 instance->jbod_seq_cmd = NULL;
3053 megasas_return_cmd(instance, cmd);
3054
3055 if (status == MFI_STAT_OK) {
3056 instance->pd_seq_map_id++;
3057 /* Re-register a pd sync seq num cmd */
3058 if (megasas_sync_pd_seq_num(instance, true))
3059 instance->use_seqnum_jbod_fp = false;
3060 } else
3061 instance->use_seqnum_jbod_fp = false;
3062
3063 spin_unlock_irqrestore(instance->host->host_lock, flags);
3064 break;
3065 }
3066
c4a3e0a5
BS		 3067 /*
3068 * See if got an event notification
3069 */
94cd65dd 3070 if (opcode == MR_DCMD_CTRL_EVENT_WAIT)
c4a3e0a5
BS		 3071 megasas_service_aen(instance, cmd);
3072 else
3073 megasas_complete_int_cmd(instance, cmd);
3074
3075 break;
3076
3077 case MFI_CMD_ABORT:
3078 /*
3079 * Cmd issued to abort another cmd returned
3080 */
3081 megasas_complete_abort(instance, cmd);
3082 break;
3083
3084 default:
1be18254 3085 dev_info(&instance->pdev->dev, "Unknown command completed! [0x%X]\n",
c4a3e0a5
BS		 3086 hdr->cmd);
3087 break;
3088 }
3089}
3090
39a98554 3091/**
3092 * megasas_issue_pending_cmds_again - issue all pending cmds
da0dc9fb 3093 * in FW again because of the fw reset
39a98554 3094 * @instance: Adapter soft state
3095 */
3096static inline void
3097megasas_issue_pending_cmds_again(struct megasas_instance *instance)
3098{
3099 struct megasas_cmd *cmd;
3100 struct list_head clist_local;
3101 union megasas_evt_class_locale class_locale;
3102 unsigned long flags;
3103 u32 seq_num;
3104
3105 INIT_LIST_HEAD(&clist_local);
3106 spin_lock_irqsave(&instance->hba_lock, flags);
3107 list_splice_init(&instance->internal_reset_pending_q, &clist_local);
3108 spin_unlock_irqrestore(&instance->hba_lock, flags);
3109
3110 while (!list_empty(&clist_local)) {
da0dc9fb 3111 cmd = list_entry((&clist_local)->next,
39a98554 3112 struct megasas_cmd, list);
3113 list_del_init(&cmd->list);
3114
3115 if (cmd->sync_cmd || cmd->scmd) {
1be18254
BH		 3116 dev_notice(&instance->pdev->dev, "command %p, %p:%d"
3117 "detected to be pending while HBA reset\n",
39a98554 3118 cmd, cmd->scmd, cmd->sync_cmd);
3119
3120 cmd->retry_for_fw_reset++;
3121
3122 if (cmd->retry_for_fw_reset == 3) {
1be18254 3123 dev_notice(&instance->pdev->dev, "cmd %p, %p:%d"
39a98554 3124 "was tried multiple times during reset."
3125 "Shutting down the HBA\n",
3126 cmd, cmd->scmd, cmd->sync_cmd);
c8dd61ef
SS		 3127 instance->instancet->disable_intr(instance);
3128 atomic_set(&instance->fw_reset_no_pci_access, 1);
39a98554 3129 megaraid_sas_kill_hba(instance);
39a98554 3130 return;
3131 }
3132 }
3133
3134 if (cmd->sync_cmd == 1) {
3135 if (cmd->scmd) {
1be18254 3136 dev_notice(&instance->pdev->dev, "unexpected"
39a98554 3137 "cmd attached to internal command!\n");
3138 }
1be18254 3139 dev_notice(&instance->pdev->dev, "%p synchronous cmd"
39a98554 3140 "on the internal reset queue,"
3141 "issue it again.\n", cmd);
2be2a988 3142 cmd->cmd_status_drv = MFI_STAT_INVALID_STATUS;
39a98554 3143 instance->instancet->fire_cmd(instance,
da0dc9fb 3144 cmd->frame_phys_addr,
39a98554 3145 0, instance->reg_set);
3146 } else if (cmd->scmd) {
1be18254 3147 dev_notice(&instance->pdev->dev, "%p scsi cmd [%02x]"
39a98554 3148 "detected on the internal queue, issue again.\n",
5cd049a5 3149 cmd, cmd->scmd->cmnd[0]);
39a98554 3150
3151 atomic_inc(&instance->fw_outstanding);
3152 instance->instancet->fire_cmd(instance,
3153 cmd->frame_phys_addr,
3154 cmd->frame_count-1, instance->reg_set);
3155 } else {
1be18254 3156 dev_notice(&instance->pdev->dev, "%p unexpected cmd on the"
39a98554 3157 "internal reset defer list while re-issue!!\n",
3158 cmd);
3159 }
3160 }
3161
3162 if (instance->aen_cmd) {
1be18254 3163 dev_notice(&instance->pdev->dev, "aen_cmd in def process\n");
39a98554 3164 megasas_return_cmd(instance, instance->aen_cmd);
3165
da0dc9fb 3166 instance->aen_cmd = NULL;
39a98554 3167 }
3168
3169 /*
da0dc9fb
BH		 3170 * Initiate AEN (Asynchronous Event Notification)
3171 */
39a98554 3172 seq_num = instance->last_seq_num;
3173 class_locale.members.reserved = 0;
3174 class_locale.members.locale = MR_EVT_LOCALE_ALL;
3175 class_locale.members.class = MR_EVT_CLASS_DEBUG;
3176
3177 megasas_register_aen(instance, seq_num, class_locale.word);
3178}
3179
3180/**
3181 * Move the internal reset pending commands to a deferred queue.
3182 *
3183 * We move the commands pending at internal reset time to a
3184 * pending queue. This queue would be flushed after successful
3185 * completion of the internal reset sequence. if the internal reset
3186 * did not complete in time, the kernel reset handler would flush
3187 * these commands.
3188 **/
3189static void
3190megasas_internal_reset_defer_cmds(struct megasas_instance *instance)
3191{
3192 struct megasas_cmd *cmd;
3193 int i;
3194 u32 max_cmd = instance->max_fw_cmds;
3195 u32 defer_index;
3196 unsigned long flags;
3197
da0dc9fb 3198 defer_index = 0;
90dc9d98 3199 spin_lock_irqsave(&instance->mfi_pool_lock, flags);
39a98554 3200 for (i = 0; i < max_cmd; i++) {
3201 cmd = instance->cmd_list[i];
3202 if (cmd->sync_cmd == 1 || cmd->scmd) {
1be18254 3203 dev_notice(&instance->pdev->dev, "moving cmd[%d]:%p:%d:%p"
39a98554 3204 "on the defer queue as internal\n",
3205 defer_index, cmd, cmd->sync_cmd, cmd->scmd);
3206
3207 if (!list_empty(&cmd->list)) {
1be18254 3208 dev_notice(&instance->pdev->dev, "ERROR while"
39a98554 3209 " moving this cmd:%p, %d %p, it was"
3210 "discovered on some list?\n",
3211 cmd, cmd->sync_cmd, cmd->scmd);
3212
3213 list_del_init(&cmd->list);
3214 }
3215 defer_index++;
3216 list_add_tail(&cmd->list,
3217 &instance->internal_reset_pending_q);
3218 }
3219 }
90dc9d98 3220 spin_unlock_irqrestore(&instance->mfi_pool_lock, flags);
39a98554 3221}
3222
3223
3224static void
3225process_fw_state_change_wq(struct work_struct *work)
3226{
3227 struct megasas_instance *instance =
3228 container_of(work, struct megasas_instance, work_init);
3229 u32 wait;
3230 unsigned long flags;
3231
3232 if (instance->adprecovery != MEGASAS_ADPRESET_SM_INFAULT) {
1be18254 3233 dev_notice(&instance->pdev->dev, "error, recovery st %x\n",
39a98554 3234 instance->adprecovery);
3235 return ;
3236 }
3237
3238 if (instance->adprecovery == MEGASAS_ADPRESET_SM_INFAULT) {
1be18254 3239 dev_notice(&instance->pdev->dev, "FW detected to be in fault"
39a98554 3240 "state, restarting it...\n");
3241
d46a3ad6 3242 instance->instancet->disable_intr(instance);
39a98554 3243 atomic_set(&instance->fw_outstanding, 0);
3244
3245 atomic_set(&instance->fw_reset_no_pci_access, 1);
3246 instance->instancet->adp_reset(instance, instance->reg_set);
da0dc9fb 3247 atomic_set(&instance->fw_reset_no_pci_access, 0);
39a98554 3248
1be18254 3249 dev_notice(&instance->pdev->dev, "FW restarted successfully,"
39a98554 3250 "initiating next stage...\n");
3251
1be18254 3252 dev_notice(&instance->pdev->dev, "HBA recovery state machine,"
39a98554 3253 "state 2 starting...\n");
3254
da0dc9fb 3255 /* waiting for about 20 second before start the second init */
39a98554 3256 for (wait = 0; wait < 30; wait++) {
3257 msleep(1000);
3258 }
3259
058a8fac 3260 if (megasas_transition_to_ready(instance, 1)) {
1be18254 3261 dev_notice(&instance->pdev->dev, "adapter not ready\n");
39a98554 3262
c8dd61ef 3263 atomic_set(&instance->fw_reset_no_pci_access, 1);
39a98554 3264 megaraid_sas_kill_hba(instance);
39a98554 3265 return ;
3266 }
3267
3268 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS1064R) ||
3269 (instance->pdev->device == PCI_DEVICE_ID_DELL_PERC5) ||
3270 (instance->pdev->device == PCI_DEVICE_ID_LSI_VERDE_ZCR)
3271 ) {
3272 *instance->consumer = *instance->producer;
3273 } else {
3274 *instance->consumer = 0;
3275 *instance->producer = 0;
3276 }
3277
3278 megasas_issue_init_mfi(instance);
3279
3280 spin_lock_irqsave(&instance->hba_lock, flags);
3281 instance->adprecovery = MEGASAS_HBA_OPERATIONAL;
3282 spin_unlock_irqrestore(&instance->hba_lock, flags);
d46a3ad6 3283 instance->instancet->enable_intr(instance);
39a98554 3284
3285 megasas_issue_pending_cmds_again(instance);
3286 instance->issuepend_done = 1;
3287 }
39a98554 3288}
3289
c4a3e0a5
BS		 3290/**
3291 * megasas_deplete_reply_queue - Processes all completed commands
3292 * @instance: Adapter soft state
3293 * @alt_status: Alternate status to be returned to
da0dc9fb
BH		 3294 * SCSI mid-layer instead of the status
3295 * returned by the FW
39a98554 3296 * Note: this must be called with hba lock held
c4a3e0a5 3297 */
858119e1 3298static int
39a98554 3299megasas_deplete_reply_queue(struct megasas_instance *instance,
3300 u8 alt_status)
c4a3e0a5 3301{
39a98554 3302 u32 mfiStatus;
3303 u32 fw_state;
3304
3305 if ((mfiStatus = instance->instancet->check_reset(instance,
3306 instance->reg_set)) == 1) {
3307 return IRQ_HANDLED;
3308 }
3309
3310 if ((mfiStatus = instance->instancet->clear_intr(
3311 instance->reg_set)
3312 ) == 0) {
e1419191 3313 /* Hardware may not set outbound_intr_status in MSI-X mode */
c8e858fe 3314 if (!instance->msix_vectors)
e1419191 3315 return IRQ_NONE;
39a98554 3316 }
3317
3318 instance->mfiStatus = mfiStatus;
3319
3320 if ((mfiStatus & MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE)) {
3321 fw_state = instance->instancet->read_fw_status_reg(
3322 instance->reg_set) & MFI_STATE_MASK;
3323
3324 if (fw_state != MFI_STATE_FAULT) {
1be18254 3325 dev_notice(&instance->pdev->dev, "fw state:%x\n",
39a98554 3326 fw_state);
3327 }
3328
3329 if ((fw_state == MFI_STATE_FAULT) &&
3330 (instance->disableOnlineCtrlReset == 0)) {
1be18254 3331 dev_notice(&instance->pdev->dev, "wait adp restart\n");
39a98554 3332
3333 if ((instance->pdev->device ==
3334 PCI_DEVICE_ID_LSI_SAS1064R) ||
3335 (instance->pdev->device ==
3336 PCI_DEVICE_ID_DELL_PERC5) ||
3337 (instance->pdev->device ==
3338 PCI_DEVICE_ID_LSI_VERDE_ZCR)) {
3339
3340 *instance->consumer =
94cd65dd 3341 cpu_to_le32(MEGASAS_ADPRESET_INPROG_SIGN);
39a98554 3342 }
3343
3344
d46a3ad6 3345 instance->instancet->disable_intr(instance);
39a98554 3346 instance->adprecovery = MEGASAS_ADPRESET_SM_INFAULT;
3347 instance->issuepend_done = 0;
3348
3349 atomic_set(&instance->fw_outstanding, 0);
3350 megasas_internal_reset_defer_cmds(instance);
3351
1be18254 3352 dev_notice(&instance->pdev->dev, "fwState=%x, stage:%d\n",
39a98554 3353 fw_state, instance->adprecovery);
3354
3355 schedule_work(&instance->work_init);
3356 return IRQ_HANDLED;
3357
3358 } else {
1be18254 3359 dev_notice(&instance->pdev->dev, "fwstate:%x, dis_OCR=%x\n",
39a98554 3360 fw_state, instance->disableOnlineCtrlReset);
3361 }
3362 }
c4a3e0a5 3363
5d018ad0 3364 tasklet_schedule(&instance->isr_tasklet);
c4a3e0a5
BS		 3365 return IRQ_HANDLED;
3366}
c4a3e0a5
BS		 3367/**
3368 * megasas_isr - isr entry point
3369 */
7d12e780 3370static irqreturn_t megasas_isr(int irq, void *devp)
c4a3e0a5 3371{
c8e858fe 3372 struct megasas_irq_context *irq_context = devp;
3373 struct megasas_instance *instance = irq_context->instance;
39a98554 3374 unsigned long flags;
da0dc9fb 3375 irqreturn_t rc;
39a98554 3376
c8e858fe 3377 if (atomic_read(&instance->fw_reset_no_pci_access))
39a98554 3378 return IRQ_HANDLED;
3379
39a98554 3380 spin_lock_irqsave(&instance->hba_lock, flags);
da0dc9fb 3381 rc = megasas_deplete_reply_queue(instance, DID_OK);
39a98554 3382 spin_unlock_irqrestore(&instance->hba_lock, flags);
3383
3384 return rc;
c4a3e0a5
BS		 3385}
3386
3387/**
3388 * megasas_transition_to_ready - Move the FW to READY state
1341c939 3389 * @instance: Adapter soft state
c4a3e0a5
BS		 3390 *
3391 * During the initialization, FW passes can potentially be in any one of
3392 * several possible states. If the FW in operational, waiting-for-handshake
3393 * states, driver must take steps to bring it to ready state. Otherwise, it
3394 * has to wait for the ready state.
3395 */
9c915a8c 3396int
058a8fac 3397megasas_transition_to_ready(struct megasas_instance *instance, int ocr)
c4a3e0a5
BS		 3398{
3399 int i;
3400 u8 max_wait;
3401 u32 fw_state;
3402 u32 cur_state;
7218df69 3403 u32 abs_state, curr_abs_state;
c4a3e0a5 3404
bc6ac5e8
TH		 3405 abs_state = instance->instancet->read_fw_status_reg(instance->reg_set);
3406 fw_state = abs_state & MFI_STATE_MASK;
c4a3e0a5 3407
e3bbff9f 3408 if (fw_state != MFI_STATE_READY)
1be18254 3409 dev_info(&instance->pdev->dev, "Waiting for FW to come to ready"
0d49016b 3410 " state\n");
e3bbff9f 3411
c4a3e0a5
BS		 3412 while (fw_state != MFI_STATE_READY) {
3413
c4a3e0a5
BS		 3414 switch (fw_state) {
3415
3416 case MFI_STATE_FAULT:
1be18254 3417 dev_printk(KERN_DEBUG, &instance->pdev->dev, "FW in FAULT state!!\n");
058a8fac 3418 if (ocr) {
3419 max_wait = MEGASAS_RESET_WAIT_TIME;
3420 cur_state = MFI_STATE_FAULT;
3421 break;
3422 } else
3423 return -ENODEV;
c4a3e0a5
BS		 3424
3425 case MFI_STATE_WAIT_HANDSHAKE:
3426 /*
3427 * Set the CLR bit in inbound doorbell
3428 */
0c79e681 3429 if ((instance->pdev->device ==
87911122
YB		 3430 PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
3431 (instance->pdev->device ==
9c915a8c 3432 PCI_DEVICE_ID_LSI_SAS0071SKINNY) ||
3433 (instance->pdev->device ==
21d3c710 3434 PCI_DEVICE_ID_LSI_FUSION) ||
36807e67 3435 (instance->pdev->device ==
229fe47c 3436 PCI_DEVICE_ID_LSI_PLASMA) ||
3437 (instance->pdev->device ==
21d3c710
SS		 3438 PCI_DEVICE_ID_LSI_INVADER) ||
3439 (instance->pdev->device ==
3440 PCI_DEVICE_ID_LSI_FURY)) {
87911122
YB		 3441 writel(
3442 MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG,
9c915a8c 3443 &instance->reg_set->doorbell);
87911122
YB		 3444 } else {
3445 writel(
3446 MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG,
3447 &instance->reg_set->inbound_doorbell);
3448 }
c4a3e0a5 3449
7218df69 3450 max_wait = MEGASAS_RESET_WAIT_TIME;
c4a3e0a5
BS		 3451 cur_state = MFI_STATE_WAIT_HANDSHAKE;
3452 break;
3453
e3bbff9f 3454 case MFI_STATE_BOOT_MESSAGE_PENDING:
87911122 3455 if ((instance->pdev->device ==
9c915a8c 3456 PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
3457 (instance->pdev->device ==
3458 PCI_DEVICE_ID_LSI_SAS0071SKINNY) ||
3459 (instance->pdev->device ==
36807e67 3460 PCI_DEVICE_ID_LSI_FUSION) ||
229fe47c 3461 (instance->pdev->device ==
3462 PCI_DEVICE_ID_LSI_PLASMA) ||
36807e67 3463 (instance->pdev->device ==
21d3c710
SS		 3464 PCI_DEVICE_ID_LSI_INVADER) ||
3465 (instance->pdev->device ==
3466 PCI_DEVICE_ID_LSI_FURY)) {
87911122 3467 writel(MFI_INIT_HOTPLUG,
9c915a8c 3468 &instance->reg_set->doorbell);
87911122
YB		 3469 } else
3470 writel(MFI_INIT_HOTPLUG,
3471 &instance->reg_set->inbound_doorbell);
e3bbff9f 3472
7218df69 3473 max_wait = MEGASAS_RESET_WAIT_TIME;
e3bbff9f
SP		 3474 cur_state = MFI_STATE_BOOT_MESSAGE_PENDING;
3475 break;
3476
c4a3e0a5
BS		 3477 case MFI_STATE_OPERATIONAL:
3478 /*
e3bbff9f 3479 * Bring it to READY state; assuming max wait 10 secs
c4a3e0a5 3480 */
d46a3ad6 3481 instance->instancet->disable_intr(instance);
87911122
YB		 3482 if ((instance->pdev->device ==
3483 PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
3484 (instance->pdev->device ==
9c915a8c 3485 PCI_DEVICE_ID_LSI_SAS0071SKINNY) ||
3486 (instance->pdev->device
36807e67 3487 == PCI_DEVICE_ID_LSI_FUSION) ||
229fe47c 3488 (instance->pdev->device
3489 == PCI_DEVICE_ID_LSI_PLASMA) ||
36807e67 3490 (instance->pdev->device
21d3c710
SS		 3491 == PCI_DEVICE_ID_LSI_INVADER) ||
3492 (instance->pdev->device
3493 == PCI_DEVICE_ID_LSI_FURY)) {
87911122 3494 writel(MFI_RESET_FLAGS,
9c915a8c 3495 &instance->reg_set->doorbell);
36807e67 3496 if ((instance->pdev->device ==
21d3c710
SS		 3497 PCI_DEVICE_ID_LSI_FUSION) ||
3498 (instance->pdev->device ==
229fe47c 3499 PCI_DEVICE_ID_LSI_PLASMA) ||
3500 (instance->pdev->device ==
21d3c710
SS		 3501 PCI_DEVICE_ID_LSI_INVADER) ||
3502 (instance->pdev->device ==
3503 PCI_DEVICE_ID_LSI_FURY)) {
9c915a8c 3504 for (i = 0; i < (10 * 1000); i += 20) {
3505 if (readl(
3506 &instance->
3507 reg_set->
3508 doorbell) & 1)
3509 msleep(20);
3510 else
3511 break;
3512 }
3513 }
87911122
YB		 3514 } else
3515 writel(MFI_RESET_FLAGS,
3516 &instance->reg_set->inbound_doorbell);
c4a3e0a5 3517
7218df69 3518 max_wait = MEGASAS_RESET_WAIT_TIME;
c4a3e0a5
BS		 3519 cur_state = MFI_STATE_OPERATIONAL;
3520 break;
3521
3522 case MFI_STATE_UNDEFINED:
3523 /*
3524 * This state should not last for more than 2 seconds
3525 */
7218df69 3526 max_wait = MEGASAS_RESET_WAIT_TIME;
c4a3e0a5
BS		 3527 cur_state = MFI_STATE_UNDEFINED;
3528 break;
3529
3530 case MFI_STATE_BB_INIT:
7218df69 3531 max_wait = MEGASAS_RESET_WAIT_TIME;
c4a3e0a5
BS		 3532 cur_state = MFI_STATE_BB_INIT;
3533 break;
3534
3535 case MFI_STATE_FW_INIT:
7218df69 3536 max_wait = MEGASAS_RESET_WAIT_TIME;
c4a3e0a5
BS		 3537 cur_state = MFI_STATE_FW_INIT;
3538 break;
3539
3540 case MFI_STATE_FW_INIT_2:
7218df69 3541 max_wait = MEGASAS_RESET_WAIT_TIME;
c4a3e0a5
BS		 3542 cur_state = MFI_STATE_FW_INIT_2;
3543 break;
3544
3545 case MFI_STATE_DEVICE_SCAN:
7218df69 3546 max_wait = MEGASAS_RESET_WAIT_TIME;
c4a3e0a5
BS		 3547 cur_state = MFI_STATE_DEVICE_SCAN;
3548 break;
3549
3550 case MFI_STATE_FLUSH_CACHE:
7218df69 3551 max_wait = MEGASAS_RESET_WAIT_TIME;
c4a3e0a5
BS		 3552 cur_state = MFI_STATE_FLUSH_CACHE;
3553 break;
3554
3555 default:
1be18254 3556 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Unknown state 0x%x\n",
c4a3e0a5
BS		 3557 fw_state);
3558 return -ENODEV;
3559 }
3560
3561 /*
3562 * The cur_state should not last for more than max_wait secs
3563 */
3564 for (i = 0; i < (max_wait * 1000); i++) {
bc6ac5e8
TH		 3565 curr_abs_state = instance->instancet->
3566 read_fw_status_reg(instance->reg_set);
c4a3e0a5 3567
7218df69 3568 if (abs_state == curr_abs_state) {
c4a3e0a5
BS		 3569 msleep(1);
3570 } else
3571 break;
3572 }
3573
3574 /*
3575 * Return error if fw_state hasn't changed after max_wait
3576 */
7218df69 3577 if (curr_abs_state == abs_state) {
1be18254 3578 dev_printk(KERN_DEBUG, &instance->pdev->dev, "FW state [%d] hasn't changed "
c4a3e0a5
BS		 3579 "in %d secs\n", fw_state, max_wait);
3580 return -ENODEV;
3581 }
bc6ac5e8
TH		 3582
3583 abs_state = curr_abs_state;
3584 fw_state = curr_abs_state & MFI_STATE_MASK;
39a98554 3585 }
1be18254 3586 dev_info(&instance->pdev->dev, "FW now in Ready state\n");
c4a3e0a5
BS		 3587
3588 return 0;
3589}
3590
3591/**
3592 * megasas_teardown_frame_pool - Destroy the cmd frame DMA pool
3593 * @instance: Adapter soft state
3594 */
3595static void megasas_teardown_frame_pool(struct megasas_instance *instance)
3596{
3597 int i;
9c915a8c 3598 u32 max_cmd = instance->max_mfi_cmds;
c4a3e0a5
BS		 3599 struct megasas_cmd *cmd;
3600
3601 if (!instance->frame_dma_pool)
3602 return;
3603
3604 /*
3605 * Return all frames to pool
3606 */
3607 for (i = 0; i < max_cmd; i++) {
3608
3609 cmd = instance->cmd_list[i];
3610
3611 if (cmd->frame)
3612 pci_pool_free(instance->frame_dma_pool, cmd->frame,
3613 cmd->frame_phys_addr);
3614
3615 if (cmd->sense)
e3bbff9f 3616 pci_pool_free(instance->sense_dma_pool, cmd->sense,
c4a3e0a5
BS		 3617 cmd->sense_phys_addr);
3618 }
3619
3620 /*
3621 * Now destroy the pool itself
3622 */
3623 pci_pool_destroy(instance->frame_dma_pool);
3624 pci_pool_destroy(instance->sense_dma_pool);
3625
3626 instance->frame_dma_pool = NULL;
3627 instance->sense_dma_pool = NULL;
3628}
3629
3630/**
3631 * megasas_create_frame_pool - Creates DMA pool for cmd frames
3632 * @instance: Adapter soft state
3633 *
3634 * Each command packet has an embedded DMA memory buffer that is used for
3635 * filling MFI frame and the SG list that immediately follows the frame. This
3636 * function creates those DMA memory buffers for each command packet by using
3637 * PCI pool facility.
3638 */
3639static int megasas_create_frame_pool(struct megasas_instance *instance)
3640{
3641 int i;
3642 u32 max_cmd;
3643 u32 sge_sz;
c4a3e0a5
BS		 3644 u32 total_sz;
3645 u32 frame_count;
3646 struct megasas_cmd *cmd;
3647
9c915a8c 3648 max_cmd = instance->max_mfi_cmds;
c4a3e0a5
BS		 3649
3650 /*
3651 * Size of our frame is 64 bytes for MFI frame, followed by max SG
3652 * elements and finally SCSI_SENSE_BUFFERSIZE bytes for sense buffer
3653 */
3654 sge_sz = (IS_DMA64) ? sizeof(struct megasas_sge64) :
3655 sizeof(struct megasas_sge32);
3656
da0dc9fb 3657 if (instance->flag_ieee)
f4c9a131 3658 sge_sz = sizeof(struct megasas_sge_skinny);
f4c9a131 3659
c4a3e0a5 3660 /*
200aed58
SS		 3661 * For MFI controllers.
3662 * max_num_sge = 60
3663 * max_sge_sz = 16 byte (sizeof megasas_sge_skinny)
3664 * Total 960 byte (15 MFI frame of 64 byte)
3665 *
3666 * Fusion adapter require only 3 extra frame.
3667 * max_num_sge = 16 (defined as MAX_IOCTL_SGE)
3668 * max_sge_sz = 12 byte (sizeof megasas_sge64)
3669 * Total 192 byte (3 MFI frame of 64 byte)
c4a3e0a5 3670 */
200aed58 3671 frame_count = instance->ctrl_context ? (3 + 1) : (15 + 1);
c4a3e0a5
BS		 3672 total_sz = MEGAMFI_FRAME_SIZE * frame_count;
3673 /*
3674 * Use DMA pool facility provided by PCI layer
3675 */
3676 instance->frame_dma_pool = pci_pool_create("megasas frame pool",
200aed58 3677 instance->pdev, total_sz, 256, 0);
c4a3e0a5
BS		 3678
3679 if (!instance->frame_dma_pool) {
1be18254 3680 dev_printk(KERN_DEBUG, &instance->pdev->dev, "failed to setup frame pool\n");
c4a3e0a5
BS		 3681 return -ENOMEM;
3682 }
3683
3684 instance->sense_dma_pool = pci_pool_create("megasas sense pool",
3685 instance->pdev, 128, 4, 0);
3686
3687 if (!instance->sense_dma_pool) {
1be18254 3688 dev_printk(KERN_DEBUG, &instance->pdev->dev, "failed to setup sense pool\n");
c4a3e0a5
BS		 3689
3690 pci_pool_destroy(instance->frame_dma_pool);
3691 instance->frame_dma_pool = NULL;
3692
3693 return -ENOMEM;
3694 }
3695
3696 /*
3697 * Allocate and attach a frame to each of the commands in cmd_list.
3698 * By making cmd->index as the context instead of the &cmd, we can
3699 * always use 32bit context regardless of the architecture
3700 */
3701 for (i = 0; i < max_cmd; i++) {
3702
3703 cmd = instance->cmd_list[i];
3704
3705 cmd->frame = pci_pool_alloc(instance->frame_dma_pool,
3706 GFP_KERNEL, &cmd->frame_phys_addr);
3707
3708 cmd->sense = pci_pool_alloc(instance->sense_dma_pool,
3709 GFP_KERNEL, &cmd->sense_phys_addr);
3710
3711 /*
3712 * megasas_teardown_frame_pool() takes care of freeing
3713 * whatever has been allocated
3714 */
3715 if (!cmd->frame || !cmd->sense) {
1be18254 3716 dev_printk(KERN_DEBUG, &instance->pdev->dev, "pci_pool_alloc failed\n");
c4a3e0a5
BS		 3717 megasas_teardown_frame_pool(instance);
3718 return -ENOMEM;
3719 }
3720
707e09bd 3721 memset(cmd->frame, 0, total_sz);
94cd65dd 3722 cmd->frame->io.context = cpu_to_le32(cmd->index);
7e8a75f4 3723 cmd->frame->io.pad_0 = 0;
e5f93a36 3724 if ((instance->pdev->device != PCI_DEVICE_ID_LSI_FUSION) &&
229fe47c 3725 (instance->pdev->device != PCI_DEVICE_ID_LSI_PLASMA) &&
e5f93a36 3726 (instance->pdev->device != PCI_DEVICE_ID_LSI_INVADER) &&
21d3c710 3727 (instance->pdev->device != PCI_DEVICE_ID_LSI_FURY) &&
e5f93a36 3728 (reset_devices))
3729 cmd->frame->hdr.cmd = MFI_CMD_INVALID;
c4a3e0a5
BS		 3730 }
3731
3732 return 0;
3733}
3734
3735/**
3736 * megasas_free_cmds - Free all the cmds in the free cmd pool
3737 * @instance: Adapter soft state
3738 */
9c915a8c 3739void megasas_free_cmds(struct megasas_instance *instance)
c4a3e0a5
BS		 3740{
3741 int i;
da0dc9fb 3742
c4a3e0a5
BS		 3743 /* First free the MFI frame pool */
3744 megasas_teardown_frame_pool(instance);
3745
3746 /* Free all the commands in the cmd_list */
9c915a8c 3747 for (i = 0; i < instance->max_mfi_cmds; i++)
3748
c4a3e0a5
BS		 3749 kfree(instance->cmd_list[i]);
3750
3751 /* Free the cmd_list buffer itself */
3752 kfree(instance->cmd_list);
3753 instance->cmd_list = NULL;
3754
3755 INIT_LIST_HEAD(&instance->cmd_pool);
3756}
3757
3758/**
3759 * megasas_alloc_cmds - Allocates the command packets
3760 * @instance: Adapter soft state
3761 *
3762 * Each command that is issued to the FW, whether IO commands from the OS or
3763 * internal commands like IOCTLs, are wrapped in local data structure called
3764 * megasas_cmd. The frame embedded in this megasas_cmd is actually issued to
3765 * the FW.
3766 *
3767 * Each frame has a 32-bit field called context (tag). This context is used
3768 * to get back the megasas_cmd from the frame when a frame gets completed in
3769 * the ISR. Typically the address of the megasas_cmd itself would be used as
3770 * the context. But we wanted to keep the differences between 32 and 64 bit
3771 * systems to the mininum. We always use 32 bit integers for the context. In
3772 * this driver, the 32 bit values are the indices into an array cmd_list.
3773 * This array is used only to look up the megasas_cmd given the context. The
3774 * free commands themselves are maintained in a linked list called cmd_pool.
3775 */
9c915a8c 3776int megasas_alloc_cmds(struct megasas_instance *instance)
c4a3e0a5
BS		 3777{
3778 int i;
3779 int j;
3780 u32 max_cmd;
3781 struct megasas_cmd *cmd;
90dc9d98 3782 struct fusion_context *fusion;
c4a3e0a5 3783
90dc9d98 3784 fusion = instance->ctrl_context;
9c915a8c 3785 max_cmd = instance->max_mfi_cmds;
c4a3e0a5
BS		 3786
3787 /*
3788 * instance->cmd_list is an array of struct megasas_cmd pointers.
3789 * Allocate the dynamic array first and then allocate individual
3790 * commands.
3791 */
dd00cc48 3792 instance->cmd_list = kcalloc(max_cmd, sizeof(struct megasas_cmd*), GFP_KERNEL);
c4a3e0a5
BS		 3793
3794 if (!instance->cmd_list) {
1be18254 3795 dev_printk(KERN_DEBUG, &instance->pdev->dev, "out of memory\n");
c4a3e0a5
BS		 3796 return -ENOMEM;
3797 }
3798
9c915a8c 3799 memset(instance->cmd_list, 0, sizeof(struct megasas_cmd *) *max_cmd);
c4a3e0a5
BS		 3800
3801 for (i = 0; i < max_cmd; i++) {
3802 instance->cmd_list[i] = kmalloc(sizeof(struct megasas_cmd),
3803 GFP_KERNEL);
3804
3805 if (!instance->cmd_list[i]) {
3806
3807 for (j = 0; j < i; j++)
3808 kfree(instance->cmd_list[j]);
3809
3810 kfree(instance->cmd_list);
3811 instance->cmd_list = NULL;
3812
3813 return -ENOMEM;
3814 }
3815 }
3816
c4a3e0a5
BS		 3817 for (i = 0; i < max_cmd; i++) {
3818 cmd = instance->cmd_list[i];
3819 memset(cmd, 0, sizeof(struct megasas_cmd));
3820 cmd->index = i;
39a98554 3821 cmd->scmd = NULL;
c4a3e0a5
BS		 3822 cmd->instance = instance;
3823
3824 list_add_tail(&cmd->list, &instance->cmd_pool);
3825 }
3826
3827 /*
3828 * Create a frame pool and assign one frame to each cmd
3829 */
3830 if (megasas_create_frame_pool(instance)) {
1be18254 3831 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Error creating frame DMA pool\n");
c4a3e0a5
BS		 3832 megasas_free_cmds(instance);
3833 }
3834
3835 return 0;
3836}
3837
81e403ce
YB		 3838/*
3839 * megasas_get_pd_list_info - Returns FW's pd_list structure
3840 * @instance: Adapter soft state
3841 * @pd_list: pd_list structure
3842 *
3843 * Issues an internal command (DCMD) to get the FW's controller PD
3844 * list structure. This information is mainly used to find out SYSTEM
3845 * supported by the FW.
3846 */
3847static int
3848megasas_get_pd_list(struct megasas_instance *instance)
3849{
3850 int ret = 0, pd_index = 0;
3851 struct megasas_cmd *cmd;
3852 struct megasas_dcmd_frame *dcmd;
3853 struct MR_PD_LIST *ci;
3854 struct MR_PD_ADDRESS *pd_addr;
3855 dma_addr_t ci_h = 0;
3856
3857 cmd = megasas_get_cmd(instance);
3858
3859 if (!cmd) {
1be18254 3860 dev_printk(KERN_DEBUG, &instance->pdev->dev, "(get_pd_list): Failed to get cmd\n");
81e403ce
YB		 3861 return -ENOMEM;
3862 }
3863
3864 dcmd = &cmd->frame->dcmd;
3865
3866 ci = pci_alloc_consistent(instance->pdev,
3867 MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST), &ci_h);
3868
3869 if (!ci) {
1be18254 3870 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to alloc mem for pd_list\n");
81e403ce
YB		 3871 megasas_return_cmd(instance, cmd);
3872 return -ENOMEM;
3873 }
3874
3875 memset(ci, 0, sizeof(*ci));
3876 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
3877
3878 dcmd->mbox.b[0] = MR_PD_QUERY_TYPE_EXPOSED_TO_HOST;
3879 dcmd->mbox.b[1] = 0;
3880 dcmd->cmd = MFI_CMD_DCMD;
2be2a988 3881 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
81e403ce 3882 dcmd->sge_count = 1;
94cd65dd 3883 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_READ);
81e403ce 3884 dcmd->timeout = 0;
780a3762 3885 dcmd->pad_0 = 0;
94cd65dd
SS		 3886 dcmd->data_xfer_len = cpu_to_le32(MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST));
3887 dcmd->opcode = cpu_to_le32(MR_DCMD_PD_LIST_QUERY);
3888 dcmd->sgl.sge32[0].phys_addr = cpu_to_le32(ci_h);
3889 dcmd->sgl.sge32[0].length = cpu_to_le32(MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST));
81e403ce 3890
90dc9d98
SS		 3891 if (instance->ctrl_context && !instance->mask_interrupts)
3892 ret = megasas_issue_blocked_cmd(instance, cmd,
3893 MEGASAS_BLOCKED_CMD_TIMEOUT);
3894 else
3895 ret = megasas_issue_polled(instance, cmd);
81e403ce
YB		 3896
3897 /*
da0dc9fb
BH		 3898 * the following function will get the instance PD LIST.
3899 */
81e403ce
YB		 3900
3901 pd_addr = ci->addr;
3902
da0dc9fb 3903 if (ret == 0 &&
94cd65dd 3904 (le32_to_cpu(ci->count) <
81e403ce
YB		 3905 (MEGASAS_MAX_PD_CHANNELS * MEGASAS_MAX_DEV_PER_CHANNEL))) {
3906
999ece0a 3907 memset(instance->local_pd_list, 0,
81e403ce
YB		 3908 MEGASAS_MAX_PD * sizeof(struct megasas_pd_list));
3909
94cd65dd 3910 for (pd_index = 0; pd_index < le32_to_cpu(ci->count); pd_index++) {
81e403ce 3911
999ece0a 3912 instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].tid =
94cd65dd 3913 le16_to_cpu(pd_addr->deviceId);
999ece0a 3914 instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].driveType =
81e403ce 3915 pd_addr->scsiDevType;
999ece0a 3916 instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].driveState =
81e403ce
YB		 3917 MR_PD_STATE_SYSTEM;
3918 pd_addr++;
3919 }
999ece0a
SS		 3920 memcpy(instance->pd_list, instance->local_pd_list,
3921 sizeof(instance->pd_list));
81e403ce
YB		 3922 }
3923
3924 pci_free_consistent(instance->pdev,
3925 MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST),
3926 ci, ci_h);
90dc9d98 3927
4026e9aa 3928 megasas_return_cmd(instance, cmd);
81e403ce
YB		 3929
3930 return ret;
3931}
3932
bdc6fb8d
YB		 3933/*
3934 * megasas_get_ld_list_info - Returns FW's ld_list structure
3935 * @instance: Adapter soft state
3936 * @ld_list: ld_list structure
3937 *
3938 * Issues an internal command (DCMD) to get the FW's controller PD
3939 * list structure. This information is mainly used to find out SYSTEM
3940 * supported by the FW.
3941 */
3942static int
3943megasas_get_ld_list(struct megasas_instance *instance)
3944{
3945 int ret = 0, ld_index = 0, ids = 0;
3946 struct megasas_cmd *cmd;
3947 struct megasas_dcmd_frame *dcmd;
3948 struct MR_LD_LIST *ci;
3949 dma_addr_t ci_h = 0;
94cd65dd 3950 u32 ld_count;
bdc6fb8d
YB		 3951
3952 cmd = megasas_get_cmd(instance);
3953
3954 if (!cmd) {
1be18254 3955 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_list: Failed to get cmd\n");
bdc6fb8d
YB		 3956 return -ENOMEM;
3957 }
3958
3959 dcmd = &cmd->frame->dcmd;
3960
3961 ci = pci_alloc_consistent(instance->pdev,
3962 sizeof(struct MR_LD_LIST),
3963 &ci_h);
3964
3965 if (!ci) {
1be18254 3966 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to alloc mem in get_ld_list\n");
bdc6fb8d
YB		 3967 megasas_return_cmd(instance, cmd);
3968 return -ENOMEM;
3969 }
3970
3971 memset(ci, 0, sizeof(*ci));
3972 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
3973
51087a86
SS		 3974 if (instance->supportmax256vd)
3975 dcmd->mbox.b[0] = 1;
bdc6fb8d 3976 dcmd->cmd = MFI_CMD_DCMD;
2be2a988 3977 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
bdc6fb8d 3978 dcmd->sge_count = 1;
94cd65dd 3979 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_READ);
bdc6fb8d 3980 dcmd->timeout = 0;
94cd65dd
SS		 3981 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_LD_LIST));
3982 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_GET_LIST);
3983 dcmd->sgl.sge32[0].phys_addr = cpu_to_le32(ci_h);
3984 dcmd->sgl.sge32[0].length = cpu_to_le32(sizeof(struct MR_LD_LIST));
bdc6fb8d
YB		 3985 dcmd->pad_0 = 0;
3986
90dc9d98
SS		 3987 if (instance->ctrl_context && !instance->mask_interrupts)
3988 ret = megasas_issue_blocked_cmd(instance, cmd,
3989 MEGASAS_BLOCKED_CMD_TIMEOUT);
3990 else
3991 ret = megasas_issue_polled(instance, cmd);
3992
bdc6fb8d 3993
94cd65dd
SS		 3994 ld_count = le32_to_cpu(ci->ldCount);
3995
bdc6fb8d
YB		 3996 /* the following function will get the instance PD LIST */
3997
51087a86
SS		 3998 if ((ret == 0) && (ld_count <= instance->fw_supported_vd_count)) {
3999 memset(instance->ld_ids, 0xff, MAX_LOGICAL_DRIVES_EXT);
bdc6fb8d 4000
94cd65dd 4001 for (ld_index = 0; ld_index < ld_count; ld_index++) {
bdc6fb8d
YB		 4002 if (ci->ldList[ld_index].state != 0) {
4003 ids = ci->ldList[ld_index].ref.targetId;
4004 instance->ld_ids[ids] =
4005 ci->ldList[ld_index].ref.targetId;
4006 }
4007 }
4008 }
4009
4010 pci_free_consistent(instance->pdev,
4011 sizeof(struct MR_LD_LIST),
4012 ci,
4013 ci_h);
4014
4026e9aa 4015 megasas_return_cmd(instance, cmd);
bdc6fb8d
YB		 4016 return ret;
4017}
4018
21c9e160 4019/**
4020 * megasas_ld_list_query - Returns FW's ld_list structure
4021 * @instance: Adapter soft state
4022 * @ld_list: ld_list structure
4023 *
4024 * Issues an internal command (DCMD) to get the FW's controller PD
4025 * list structure. This information is mainly used to find out SYSTEM
4026 * supported by the FW.
4027 */
4028static int
4029megasas_ld_list_query(struct megasas_instance *instance, u8 query_type)
4030{
4031 int ret = 0, ld_index = 0, ids = 0;
4032 struct megasas_cmd *cmd;
4033 struct megasas_dcmd_frame *dcmd;
4034 struct MR_LD_TARGETID_LIST *ci;
4035 dma_addr_t ci_h = 0;
94cd65dd 4036 u32 tgtid_count;
21c9e160 4037
4038 cmd = megasas_get_cmd(instance);
4039
4040 if (!cmd) {
1be18254
BH		 4041 dev_warn(&instance->pdev->dev,
4042 "megasas_ld_list_query: Failed to get cmd\n");
21c9e160 4043 return -ENOMEM;
4044 }
4045
4046 dcmd = &cmd->frame->dcmd;
4047
4048 ci = pci_alloc_consistent(instance->pdev,
4049 sizeof(struct MR_LD_TARGETID_LIST), &ci_h);
4050
4051 if (!ci) {
1be18254
BH		 4052 dev_warn(&instance->pdev->dev,
4053 "Failed to alloc mem for ld_list_query\n");
21c9e160 4054 megasas_return_cmd(instance, cmd);
4055 return -ENOMEM;
4056 }
4057
4058 memset(ci, 0, sizeof(*ci));
4059 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
4060
4061 dcmd->mbox.b[0] = query_type;
51087a86
SS		 4062 if (instance->supportmax256vd)
4063 dcmd->mbox.b[2] = 1;
21c9e160 4064
4065 dcmd->cmd = MFI_CMD_DCMD;
2be2a988 4066 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
21c9e160 4067 dcmd->sge_count = 1;
94cd65dd 4068 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_READ);
21c9e160 4069 dcmd->timeout = 0;
94cd65dd
SS		 4070 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_LD_TARGETID_LIST));
4071 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_LIST_QUERY);
4072 dcmd->sgl.sge32[0].phys_addr = cpu_to_le32(ci_h);
4073 dcmd->sgl.sge32[0].length = cpu_to_le32(sizeof(struct MR_LD_TARGETID_LIST));
21c9e160 4074 dcmd->pad_0 = 0;
4075
90dc9d98
SS		 4076 if (instance->ctrl_context && !instance->mask_interrupts)
4077 ret = megasas_issue_blocked_cmd(instance, cmd,
4078 MEGASAS_BLOCKED_CMD_TIMEOUT);
4079 else
4080 ret = megasas_issue_polled(instance, cmd);
21c9e160 4081
94cd65dd
SS		 4082 tgtid_count = le32_to_cpu(ci->count);
4083
51087a86 4084 if ((ret == 0) && (tgtid_count <= (instance->fw_supported_vd_count))) {
21c9e160 4085 memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS);
94cd65dd 4086 for (ld_index = 0; ld_index < tgtid_count; ld_index++) {
21c9e160 4087 ids = ci->targetId[ld_index];
4088 instance->ld_ids[ids] = ci->targetId[ld_index];
4089 }
4090
4091 }
4092
4093 pci_free_consistent(instance->pdev, sizeof(struct MR_LD_TARGETID_LIST),
4094 ci, ci_h);
4095
4026e9aa 4096 megasas_return_cmd(instance, cmd);
21c9e160 4097
4098 return ret;
4099}
4100
d009b576
SS		 4101/*
4102 * megasas_update_ext_vd_details : Update details w.r.t Extended VD
4103 * instance : Controller's instance
4104*/
4105static void megasas_update_ext_vd_details(struct megasas_instance *instance)
4106{
4107 struct fusion_context *fusion;
4108 u32 old_map_sz;
4109 u32 new_map_sz;
4110
4111 fusion = instance->ctrl_context;
4112 /* For MFI based controllers return dummy success */
4113 if (!fusion)
4114 return;
4115
4116 instance->supportmax256vd =
4117 instance->ctrl_info->adapterOperations3.supportMaxExtLDs;
4118 /* Below is additional check to address future FW enhancement */
4119 if (instance->ctrl_info->max_lds > 64)
4120 instance->supportmax256vd = 1;
4121
4122 instance->drv_supported_vd_count = MEGASAS_MAX_LD_CHANNELS
4123 * MEGASAS_MAX_DEV_PER_CHANNEL;
4124 instance->drv_supported_pd_count = MEGASAS_MAX_PD_CHANNELS
4125 * MEGASAS_MAX_DEV_PER_CHANNEL;
4126 if (instance->supportmax256vd) {
4127 instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES_EXT;
4128 instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES;
4129 } else {
4130 instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES;
4131 instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES;
4132 }
d88da09a
SS		 4133
4134 dev_info(&instance->pdev->dev,
4135 "firmware type\t: %s\n",
4136 instance->supportmax256vd ? "Extended VD(240 VD)firmware" :
4137 "Legacy(64 VD) firmware");
d009b576 4138
da0dc9fb 4139 old_map_sz = sizeof(struct MR_FW_RAID_MAP) +
d009b576
SS		 4140 (sizeof(struct MR_LD_SPAN_MAP) *
4141 (instance->fw_supported_vd_count - 1));
da0dc9fb
BH		 4142 new_map_sz = sizeof(struct MR_FW_RAID_MAP_EXT);
4143 fusion->drv_map_sz = sizeof(struct MR_DRV_RAID_MAP) +
d009b576
SS		 4144 (sizeof(struct MR_LD_SPAN_MAP) *
4145 (instance->drv_supported_vd_count - 1));
4146
4147 fusion->max_map_sz = max(old_map_sz, new_map_sz);
4148
4149
4150 if (instance->supportmax256vd)
4151 fusion->current_map_sz = new_map_sz;
4152 else
4153 fusion->current_map_sz = old_map_sz;
d009b576
SS		 4154}
4155
c4a3e0a5
BS		 4156/**
4157 * megasas_get_controller_info - Returns FW's controller structure
4158 * @instance: Adapter soft state
c4a3e0a5
BS		 4159 *
4160 * Issues an internal command (DCMD) to get the FW's controller structure.
4161 * This information is mainly used to find out the maximum IO transfer per
4162 * command supported by the FW.
4163 */
51087a86 4164int
d009b576 4165megasas_get_ctrl_info(struct megasas_instance *instance)
c4a3e0a5
BS		 4166{
4167 int ret = 0;
4168 struct megasas_cmd *cmd;
4169 struct megasas_dcmd_frame *dcmd;
4170 struct megasas_ctrl_info *ci;
d009b576 4171 struct megasas_ctrl_info *ctrl_info;
c4a3e0a5
BS		 4172 dma_addr_t ci_h = 0;
4173
d009b576
SS		 4174 ctrl_info = instance->ctrl_info;
4175
c4a3e0a5
BS		 4176 cmd = megasas_get_cmd(instance);
4177
4178 if (!cmd) {
1be18254 4179 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to get a free cmd\n");
c4a3e0a5
BS		 4180 return -ENOMEM;
4181 }
4182
4183 dcmd = &cmd->frame->dcmd;
4184
4185 ci = pci_alloc_consistent(instance->pdev,
4186 sizeof(struct megasas_ctrl_info), &ci_h);
4187
4188 if (!ci) {
1be18254 4189 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to alloc mem for ctrl info\n");
c4a3e0a5
BS		 4190 megasas_return_cmd(instance, cmd);
4191 return -ENOMEM;
4192 }
4193
4194 memset(ci, 0, sizeof(*ci));
4195 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
4196
4197 dcmd->cmd = MFI_CMD_DCMD;
2be2a988 4198 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
c4a3e0a5 4199 dcmd->sge_count = 1;
94cd65dd 4200 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_READ);
c4a3e0a5 4201 dcmd->timeout = 0;
780a3762 4202 dcmd->pad_0 = 0;
94cd65dd
SS		 4203 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct megasas_ctrl_info));
4204 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_GET_INFO);
4205 dcmd->sgl.sge32[0].phys_addr = cpu_to_le32(ci_h);
4206 dcmd->sgl.sge32[0].length = cpu_to_le32(sizeof(struct megasas_ctrl_info));
51087a86 4207 dcmd->mbox.b[0] = 1;
c4a3e0a5 4208
90dc9d98
SS		 4209 if (instance->ctrl_context && !instance->mask_interrupts)
4210 ret = megasas_issue_blocked_cmd(instance, cmd,
4211 MEGASAS_BLOCKED_CMD_TIMEOUT);
4212 else
4213 ret = megasas_issue_polled(instance, cmd);
4214
d009b576 4215 if (!ret) {
c4a3e0a5 4216 memcpy(ctrl_info, ci, sizeof(struct megasas_ctrl_info));
d009b576
SS		 4217 le32_to_cpus((u32 *)&ctrl_info->properties.OnOffProperties);
4218 le32_to_cpus((u32 *)&ctrl_info->adapterOperations2);
4219 le32_to_cpus((u32 *)&ctrl_info->adapterOperations3);
4220 megasas_update_ext_vd_details(instance);
3761cb4c 4221 instance->use_seqnum_jbod_fp =
4222 ctrl_info->adapterOperations3.useSeqNumJbodFP;
4026e9aa
SS		 4223 instance->is_imr = (ctrl_info->memory_size ? 0 : 1);
4224 dev_info(&instance->pdev->dev,
4225 "controller type\t: %s(%dMB)\n",
4226 instance->is_imr ? "iMR" : "MR",
4227 le16_to_cpu(ctrl_info->memory_size));
d009b576 4228 }
c4a3e0a5
BS		 4229
4230 pci_free_consistent(instance->pdev, sizeof(struct megasas_ctrl_info),
4231 ci, ci_h);
4232
4026e9aa 4233 megasas_return_cmd(instance, cmd);
c4a3e0a5
BS		 4234 return ret;
4235}
4236
fc62b3fc
SS		 4237/*
4238 * megasas_set_crash_dump_params - Sends address of crash dump DMA buffer
4239 * to firmware
4240 *
4241 * @instance: Adapter soft state
4242 * @crash_buf_state - tell FW to turn ON/OFF crash dump feature
4243 MR_CRASH_BUF_TURN_OFF = 0
4244 MR_CRASH_BUF_TURN_ON = 1
4245 * @return 0 on success non-zero on failure.
4246 * Issues an internal command (DCMD) to set parameters for crash dump feature.
4247 * Driver will send address of crash dump DMA buffer and set mbox to tell FW
4248 * that driver supports crash dump feature. This DCMD will be sent only if
4249 * crash dump feature is supported by the FW.
4250 *
4251 */
4252int megasas_set_crash_dump_params(struct megasas_instance *instance,
4253 u8 crash_buf_state)
4254{
4255 int ret = 0;
4256 struct megasas_cmd *cmd;
4257 struct megasas_dcmd_frame *dcmd;
4258
4259 cmd = megasas_get_cmd(instance);
4260
4261 if (!cmd) {
4262 dev_err(&instance->pdev->dev, "Failed to get a free cmd\n");
4263 return -ENOMEM;
4264 }
4265
4266
4267 dcmd = &cmd->frame->dcmd;
4268
4269 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
4270 dcmd->mbox.b[0] = crash_buf_state;
4271 dcmd->cmd = MFI_CMD_DCMD;
2be2a988 4272 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;
fc62b3fc
SS		 4273 dcmd->sge_count = 1;
4274 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_NONE);
4275 dcmd->timeout = 0;
4276 dcmd->pad_0 = 0;
4277 dcmd->data_xfer_len = cpu_to_le32(CRASH_DMA_BUF_SIZE);
4278 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_SET_CRASH_DUMP_PARAMS);
4279 dcmd->sgl.sge32[0].phys_addr = cpu_to_le32(instance->crash_dump_h);
4280 dcmd->sgl.sge32[0].length = cpu_to_le32(CRASH_DMA_BUF_SIZE);
4281
90dc9d98
SS		 4282 if (instance->ctrl_context && !instance->mask_interrupts)
4283 ret = megasas_issue_blocked_cmd(instance, cmd,
4284 MEGASAS_BLOCKED_CMD_TIMEOUT);
fc62b3fc 4285 else
90dc9d98
SS		 4286 ret = megasas_issue_polled(instance, cmd);
4287
4026e9aa 4288 megasas_return_cmd(instance, cmd);
fc62b3fc
SS		 4289 return ret;
4290}
4291
31ea7088 4292/**
4293 * megasas_issue_init_mfi - Initializes the FW
4294 * @instance: Adapter soft state
4295 *
4296 * Issues the INIT MFI cmd
4297 */
4298static int
4299megasas_issue_init_mfi(struct megasas_instance *instance)
4300{
9ab9ed38 4301 __le32 context;
31ea7088 4302 struct megasas_cmd *cmd;
31ea7088 4303 struct megasas_init_frame *init_frame;
4304 struct megasas_init_queue_info *initq_info;
4305 dma_addr_t init_frame_h;
4306 dma_addr_t initq_info_h;
4307
4308 /*
4309 * Prepare a init frame. Note the init frame points to queue info
4310 * structure. Each frame has SGL allocated after first 64 bytes. For
4311 * this frame - since we don't need any SGL - we use SGL's space as
4312 * queue info structure
4313 *
4314 * We will not get a NULL command below. We just created the pool.
4315 */
4316 cmd = megasas_get_cmd(instance);
4317
4318 init_frame = (struct megasas_init_frame *)cmd->frame;
4319 initq_info = (struct megasas_init_queue_info *)
4320 ((unsigned long)init_frame + 64);
4321
4322 init_frame_h = cmd->frame_phys_addr;
4323 initq_info_h = init_frame_h + 64;
4324
4325 context = init_frame->context;
4326 memset(init_frame, 0, MEGAMFI_FRAME_SIZE);
4327 memset(initq_info, 0, sizeof(struct megasas_init_queue_info));
4328 init_frame->context = context;
4329
94cd65dd
SS		 4330 initq_info->reply_queue_entries = cpu_to_le32(instance->max_fw_cmds + 1);
4331 initq_info->reply_queue_start_phys_addr_lo = cpu_to_le32(instance->reply_queue_h);
31ea7088 4332
94cd65dd
SS		 4333 initq_info->producer_index_phys_addr_lo = cpu_to_le32(instance->producer_h);
4334 initq_info->consumer_index_phys_addr_lo = cpu_to_le32(instance->consumer_h);
31ea7088 4335
4336 init_frame->cmd = MFI_CMD_INIT;
2be2a988 4337 init_frame->cmd_status = MFI_STAT_INVALID_STATUS;
94cd65dd
SS		 4338 init_frame->queue_info_new_phys_addr_lo =
4339 cpu_to_le32(lower_32_bits(initq_info_h));
4340 init_frame->queue_info_new_phys_addr_hi =
4341 cpu_to_le32(upper_32_bits(initq_info_h));
31ea7088 4342
94cd65dd 4343 init_frame->data_xfer_len = cpu_to_le32(sizeof(struct megasas_init_queue_info));
31ea7088 4344
4345 /*
4346 * disable the intr before firing the init frame to FW
4347 */
d46a3ad6 4348 instance->instancet->disable_intr(instance);
31ea7088 4349
4350 /*
4351 * Issue the init frame in polled mode
4352 */
4353
4354 if (megasas_issue_polled(instance, cmd)) {
1be18254 4355 dev_err(&instance->pdev->dev, "Failed to init firmware\n");
31ea7088 4356 megasas_return_cmd(instance, cmd);
4357 goto fail_fw_init;
4358 }
4359
4360 megasas_return_cmd(instance, cmd);
4361
4362 return 0;
4363
4364fail_fw_init:
4365 return -EINVAL;
4366}
4367
cd50ba8e 4368static u32
4369megasas_init_adapter_mfi(struct megasas_instance *instance)
c4a3e0a5 4370{
cd50ba8e 4371 struct megasas_register_set __iomem *reg_set;
c4a3e0a5
BS		 4372 u32 context_sz;
4373 u32 reply_q_sz;
c4a3e0a5
BS		 4374
4375 reg_set = instance->reg_set;
4376
c4a3e0a5
BS		 4377 /*
4378 * Get various operational parameters from status register
4379 */
1341c939 4380 instance->max_fw_cmds = instance->instancet->read_fw_status_reg(reg_set) & 0x00FFFF;
e3bbff9f
SP		 4381 /*
4382 * Reduce the max supported cmds by 1. This is to ensure that the
4383 * reply_q_sz (1 more than the max cmd that driver may send)
4384 * does not exceed max cmds that the FW can support
4385 */
4386 instance->max_fw_cmds = instance->max_fw_cmds-1;
9c915a8c 4387 instance->max_mfi_cmds = instance->max_fw_cmds;
0d49016b 4388 instance->max_num_sge = (instance->instancet->read_fw_status_reg(reg_set) & 0xFF0000) >>
1341c939 4389 0x10;
f26ac3a1
SS		 4390 /*
4391 * For MFI skinny adapters, MEGASAS_SKINNY_INT_CMDS commands
4392 * are reserved for IOCTL + driver's internal DCMDs.
4393 */
4394 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
4395 (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY)) {
4396 instance->max_scsi_cmds = (instance->max_fw_cmds -
4397 MEGASAS_SKINNY_INT_CMDS);
4398 sema_init(&instance->ioctl_sem, MEGASAS_SKINNY_INT_CMDS);
4399 } else {
4400 instance->max_scsi_cmds = (instance->max_fw_cmds -
4401 MEGASAS_INT_CMDS);
4402 sema_init(&instance->ioctl_sem, (MEGASAS_MFI_IOCTL_CMDS));
4403 }
4404
c4a3e0a5
BS		 4405 /*
4406 * Create a pool of commands
4407 */
4408 if (megasas_alloc_cmds(instance))
4409 goto fail_alloc_cmds;
4410
4411 /*
4412 * Allocate memory for reply queue. Length of reply queue should
4413 * be _one_ more than the maximum commands handled by the firmware.
4414 *
4415 * Note: When FW completes commands, it places corresponding contex
4416 * values in this circular reply queue. This circular queue is a fairly
4417 * typical producer-consumer queue. FW is the producer (of completed
4418 * commands) and the driver is the consumer.
4419 */
4420 context_sz = sizeof(u32);
4421 reply_q_sz = context_sz * (instance->max_fw_cmds + 1);
4422
4423 instance->reply_queue = pci_alloc_consistent(instance->pdev,
4424 reply_q_sz,
4425 &instance->reply_queue_h);
4426
4427 if (!instance->reply_queue) {
1be18254 4428 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Out of DMA mem for reply queue\n");
c4a3e0a5
BS		 4429 goto fail_reply_queue;
4430 }
4431
31ea7088 4432 if (megasas_issue_init_mfi(instance))
c4a3e0a5 4433 goto fail_fw_init;
c4a3e0a5 4434
d009b576 4435 if (megasas_get_ctrl_info(instance)) {
51087a86
SS		 4436 dev_err(&instance->pdev->dev, "(%d): Could get controller info "
4437 "Fail from %s %d\n", instance->unique_id,
4438 __func__, __LINE__);
4439 goto fail_fw_init;
4440 }
4441
39a98554 4442 instance->fw_support_ieee = 0;
4443 instance->fw_support_ieee =
4444 (instance->instancet->read_fw_status_reg(reg_set) &
4445 0x04000000);
4446
1be18254 4447 dev_notice(&instance->pdev->dev, "megasas_init_mfi: fw_support_ieee=%d",
39a98554 4448 instance->fw_support_ieee);
4449
4450 if (instance->fw_support_ieee)
4451 instance->flag_ieee = 1;
4452
cd50ba8e 4453 return 0;
4454
4455fail_fw_init:
4456
4457 pci_free_consistent(instance->pdev, reply_q_sz,
4458 instance->reply_queue, instance->reply_queue_h);
4459fail_reply_queue:
4460 megasas_free_cmds(instance);
4461
4462fail_alloc_cmds:
cd50ba8e 4463 return 1;
4464}
4465
d3557fc8
SS		 4466/*
4467 * megasas_setup_irqs_msix - register legacy interrupts.
4468 * @instance: Adapter soft state
4469 *
4470 * Do not enable interrupt, only setup ISRs.
4471 *
4472 * Return 0 on success.
4473 */
4474static int
4475megasas_setup_irqs_ioapic(struct megasas_instance *instance)
4476{
4477 struct pci_dev *pdev;
4478
4479 pdev = instance->pdev;
4480 instance->irq_context[0].instance = instance;
4481 instance->irq_context[0].MSIxIndex = 0;
4482 if (request_irq(pdev->irq, instance->instancet->service_isr,
4483 IRQF_SHARED, "megasas", &instance->irq_context[0])) {
4484 dev_err(&instance->pdev->dev,
4485 "Failed to register IRQ from %s %d\n",
4486 __func__, __LINE__);
4487 return -1;
4488 }
4489 return 0;
4490}
4491
4492/**
4493 * megasas_setup_irqs_msix - register MSI-x interrupts.
4494 * @instance: Adapter soft state
4495 * @is_probe: Driver probe check
4496 *
4497 * Do not enable interrupt, only setup ISRs.
4498 *
4499 * Return 0 on success.
4500 */
4501static int
4502megasas_setup_irqs_msix(struct megasas_instance *instance, u8 is_probe)
4503{
4504 int i, j, cpu;
4505 struct pci_dev *pdev;
4506
4507 pdev = instance->pdev;
4508
4509 /* Try MSI-x */
4510 cpu = cpumask_first(cpu_online_mask);
4511 for (i = 0; i < instance->msix_vectors; i++) {
4512 instance->irq_context[i].instance = instance;
4513 instance->irq_context[i].MSIxIndex = i;
4514 if (request_irq(instance->msixentry[i].vector,
4515 instance->instancet->service_isr, 0, "megasas",
4516 &instance->irq_context[i])) {
4517 dev_err(&instance->pdev->dev,
4518 "Failed to register IRQ for vector %d.\n", i);
4519 for (j = 0; j < i; j++) {
4520 if (smp_affinity_enable)
4521 irq_set_affinity_hint(
4522 instance->msixentry[j].vector, NULL);
4523 free_irq(instance->msixentry[j].vector,
4524 &instance->irq_context[j]);
4525 }
4526 /* Retry irq register for IO_APIC*/
4527 instance->msix_vectors = 0;
4528 if (is_probe)
4529 return megasas_setup_irqs_ioapic(instance);
4530 else
4531 return -1;
4532 }
4533 if (smp_affinity_enable) {
4534 if (irq_set_affinity_hint(instance->msixentry[i].vector,
4535 get_cpu_mask(cpu)))
4536 dev_err(&instance->pdev->dev,
4537 "Failed to set affinity hint"
4538 " for cpu %d\n", cpu);
4539 cpu = cpumask_next(cpu, cpu_online_mask);
4540 }
4541 }
4542 return 0;
4543}
4544
4545/*
4546 * megasas_destroy_irqs- unregister interrupts.
4547 * @instance: Adapter soft state
4548 * return: void
4549 */
4550static void
4551megasas_destroy_irqs(struct megasas_instance *instance) {
4552
4553 int i;
4554
4555 if (instance->msix_vectors)
4556 for (i = 0; i < instance->msix_vectors; i++) {
4557 if (smp_affinity_enable)
4558 irq_set_affinity_hint(
4559 instance->msixentry[i].vector, NULL);
4560 free_irq(instance->msixentry[i].vector,
4561 &instance->irq_context[i]);
4562 }
4563 else
4564 free_irq(instance->pdev->irq, &instance->irq_context[0]);
4565}
4566
3761cb4c 4567/**
4568 * megasas_setup_jbod_map - setup jbod map for FP seq_number.
4569 * @instance: Adapter soft state
4570 * @is_probe: Driver probe check
4571 *
4572 * Return 0 on success.
4573 */
4574void
4575megasas_setup_jbod_map(struct megasas_instance *instance)
4576{
4577 int i;
4578 struct fusion_context *fusion = instance->ctrl_context;
4579 u32 pd_seq_map_sz;
4580
4581 pd_seq_map_sz = sizeof(struct MR_PD_CFG_SEQ_NUM_SYNC) +
4582 (sizeof(struct MR_PD_CFG_SEQ) * (MAX_PHYSICAL_DEVICES - 1));
4583
4584 if (reset_devices || !fusion ||
4585 !instance->ctrl_info->adapterOperations3.useSeqNumJbodFP) {
4586 dev_info(&instance->pdev->dev,
4587 "Jbod map is not supported %s %d\n",
4588 __func__, __LINE__);
4589 instance->use_seqnum_jbod_fp = false;
4590 return;
4591 }
4592
4593 if (fusion->pd_seq_sync[0])
4594 goto skip_alloc;
4595
4596 for (i = 0; i < JBOD_MAPS_COUNT; i++) {
4597 fusion->pd_seq_sync[i] = dma_alloc_coherent
4598 (&instance->pdev->dev, pd_seq_map_sz,
4599 &fusion->pd_seq_phys[i], GFP_KERNEL);
4600 if (!fusion->pd_seq_sync[i]) {
4601 dev_err(&instance->pdev->dev,
4602 "Failed to allocate memory from %s %d\n",
4603 __func__, __LINE__);
4604 if (i == 1) {
4605 dma_free_coherent(&instance->pdev->dev,
4606 pd_seq_map_sz, fusion->pd_seq_sync[0],
4607 fusion->pd_seq_phys[0]);
4608 fusion->pd_seq_sync[0] = NULL;
4609 }
4610 instance->use_seqnum_jbod_fp = false;
4611 return;
4612 }
4613 }
4614
4615skip_alloc:
4616 if (!megasas_sync_pd_seq_num(instance, false) &&
4617 !megasas_sync_pd_seq_num(instance, true))
4618 instance->use_seqnum_jbod_fp = true;
4619 else
4620 instance->use_seqnum_jbod_fp = false;
4621}
4622
cd50ba8e 4623/**
4624 * megasas_init_fw - Initializes the FW
4625 * @instance: Adapter soft state
4626 *
4627 * This is the main function for initializing firmware
4628 */
4629
4630static int megasas_init_fw(struct megasas_instance *instance)
4631{
4632 u32 max_sectors_1;
4633 u32 max_sectors_2;
d46a3ad6 4634 u32 tmp_sectors, msix_enable, scratch_pad_2;
11f8a7b3 4635 resource_size_t base_addr;
cd50ba8e 4636 struct megasas_register_set __iomem *reg_set;
51087a86 4637 struct megasas_ctrl_info *ctrl_info = NULL;
cd50ba8e 4638 unsigned long bar_list;
d46a3ad6 4639 int i, loop, fw_msix_count = 0;
229fe47c 4640 struct IOV_111 *iovPtr;
cd50ba8e 4641
4642 /* Find first memory bar */
4643 bar_list = pci_select_bars(instance->pdev, IORESOURCE_MEM);
4644 instance->bar = find_first_bit(&bar_list, sizeof(unsigned long));
cd50ba8e 4645 if (pci_request_selected_regions(instance->pdev, instance->bar,
4646 "megasas: LSI")) {
1be18254 4647 dev_printk(KERN_DEBUG, &instance->pdev->dev, "IO memory region busy!\n");
cd50ba8e 4648 return -EBUSY;
4649 }
4650
11f8a7b3
BC		 4651 base_addr = pci_resource_start(instance->pdev, instance->bar);
4652 instance->reg_set = ioremap_nocache(base_addr, 8192);
cd50ba8e 4653
4654 if (!instance->reg_set) {
1be18254 4655 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to map IO mem\n");
cd50ba8e 4656 goto fail_ioremap;
4657 }
4658
4659 reg_set = instance->reg_set;
4660
4661 switch (instance->pdev->device) {
9c915a8c 4662 case PCI_DEVICE_ID_LSI_FUSION:
229fe47c 4663 case PCI_DEVICE_ID_LSI_PLASMA:
36807e67 4664 case PCI_DEVICE_ID_LSI_INVADER:
21d3c710 4665 case PCI_DEVICE_ID_LSI_FURY:
9c915a8c 4666 instance->instancet = &megasas_instance_template_fusion;
4667 break;
cd50ba8e 4668 case PCI_DEVICE_ID_LSI_SAS1078R:
4669 case PCI_DEVICE_ID_LSI_SAS1078DE:
4670 instance->instancet = &megasas_instance_template_ppc;
4671 break;
4672 case PCI_DEVICE_ID_LSI_SAS1078GEN2:
4673 case PCI_DEVICE_ID_LSI_SAS0079GEN2:
4674 instance->instancet = &megasas_instance_template_gen2;
4675 break;
4676 case PCI_DEVICE_ID_LSI_SAS0073SKINNY:
4677 case PCI_DEVICE_ID_LSI_SAS0071SKINNY:
4678 instance->instancet = &megasas_instance_template_skinny;
4679 break;
4680 case PCI_DEVICE_ID_LSI_SAS1064R:
4681 case PCI_DEVICE_ID_DELL_PERC5:
4682 default:
4683 instance->instancet = &megasas_instance_template_xscale;
4684 break;
4685 }
4686
6431f5d7
SS		 4687 if (megasas_transition_to_ready(instance, 0)) {
4688 atomic_set(&instance->fw_reset_no_pci_access, 1);
4689 instance->instancet->adp_reset
4690 (instance, instance->reg_set);
4691 atomic_set(&instance->fw_reset_no_pci_access, 0);
4692 dev_info(&instance->pdev->dev,
1be18254 4693 "FW restarted successfully from %s!\n",
6431f5d7
SS		 4694 __func__);
4695
4696 /*waitting for about 30 second before retry*/
4697 ssleep(30);
4698
4699 if (megasas_transition_to_ready(instance, 0))
4700 goto fail_ready_state;
4701 }
cd50ba8e 4702
d46a3ad6
SS		 4703 /*
4704 * MSI-X host index 0 is common for all adapter.
4705 * It is used for all MPT based Adapters.
4706 */
4707 instance->reply_post_host_index_addr[0] =
8a232bb3 4708 (u32 __iomem *)((u8 __iomem *)instance->reg_set +
d46a3ad6
SS		 4709 MPI2_REPLY_POST_HOST_INDEX_OFFSET);
4710
3f1abce4 4711 /* Check if MSI-X is supported while in ready state */
4712 msix_enable = (instance->instancet->read_fw_status_reg(reg_set) &
4713 0x4000000) >> 0x1a;
c8e858fe 4714 if (msix_enable && !msix_disable) {
d46a3ad6
SS		 4715 scratch_pad_2 = readl
4716 (&instance->reg_set->outbound_scratch_pad_2);
c8e858fe 4717 /* Check max MSI-X vectors */
229fe47c 4718 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_FUSION) ||
4719 (instance->pdev->device == PCI_DEVICE_ID_LSI_PLASMA)) {
d46a3ad6
SS		 4720 instance->msix_vectors = (scratch_pad_2
4721 & MR_MAX_REPLY_QUEUES_OFFSET) + 1;
4722 fw_msix_count = instance->msix_vectors;
079eaddf 4723 if (msix_vectors)
4724 instance->msix_vectors =
4725 min(msix_vectors,
4726 instance->msix_vectors);
d46a3ad6
SS		 4727 } else if ((instance->pdev->device == PCI_DEVICE_ID_LSI_INVADER)
4728 || (instance->pdev->device == PCI_DEVICE_ID_LSI_FURY)) {
4729 /* Invader/Fury supports more than 8 MSI-X */
4730 instance->msix_vectors = ((scratch_pad_2
4731 & MR_MAX_REPLY_QUEUES_EXT_OFFSET)
4732 >> MR_MAX_REPLY_QUEUES_EXT_OFFSET_SHIFT) + 1;
4733 fw_msix_count = instance->msix_vectors;
4734 /* Save 1-15 reply post index address to local memory
4735 * Index 0 is already saved from reg offset
4736 * MPI2_REPLY_POST_HOST_INDEX_OFFSET
4737 */
4738 for (loop = 1; loop < MR_MAX_MSIX_REG_ARRAY; loop++) {
4739 instance->reply_post_host_index_addr[loop] =
8a232bb3
CH		 4740 (u32 __iomem *)
4741 ((u8 __iomem *)instance->reg_set +
d46a3ad6
SS		 4742 MPI2_SUP_REPLY_POST_HOST_INDEX_OFFSET
4743 + (loop * 0x10));
4744 }
4745 if (msix_vectors)
4746 instance->msix_vectors = min(msix_vectors,
4747 instance->msix_vectors);
c8e858fe 4748 } else
4749 instance->msix_vectors = 1;
4750 /* Don't bother allocating more MSI-X vectors than cpus */
4751 instance->msix_vectors = min(instance->msix_vectors,
4752 (unsigned int)num_online_cpus());
4753 for (i = 0; i < instance->msix_vectors; i++)
4754 instance->msixentry[i].entry = i;
8ae80ed1
AG		 4755 i = pci_enable_msix_range(instance->pdev, instance->msixentry,
4756 1, instance->msix_vectors);
c12de882 4757 if (i > 0)
8ae80ed1
AG		 4758 instance->msix_vectors = i;
4759 else
c8e858fe 4760 instance->msix_vectors = 0;
4761 }
3f1abce4 4762
258c3af2
TH		 4763 dev_info(&instance->pdev->dev,
4764 "firmware supports msix\t: (%d)", fw_msix_count);
4765 dev_info(&instance->pdev->dev,
4766 "current msix/online cpus\t: (%d/%d)\n",
4767 instance->msix_vectors, (unsigned int)num_online_cpus());
d3557fc8 4768
258c3af2
TH		 4769 if (instance->msix_vectors ?
4770 megasas_setup_irqs_msix(instance, 1) :
4771 megasas_setup_irqs_ioapic(instance))
4772 goto fail_setup_irqs;
3f1abce4 4773
51087a86
SS		 4774 instance->ctrl_info = kzalloc(sizeof(struct megasas_ctrl_info),
4775 GFP_KERNEL);
4776 if (instance->ctrl_info == NULL)
4777 goto fail_init_adapter;
4778
4779 /*
4780 * Below are default value for legacy Firmware.
4781 * non-fusion based controllers
4782 */
4783 instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES;
4784 instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES;
cd50ba8e 4785 /* Get operational params, sge flags, send init cmd to controller */
4786 if (instance->instancet->init_adapter(instance))
eb1b1237 4787 goto fail_init_adapter;
cd50ba8e 4788
258c3af2
TH		 4789 tasklet_init(&instance->isr_tasklet, instance->instancet->tasklet,
4790 (unsigned long)instance);
4791
d3557fc8 4792 instance->instancet->enable_intr(instance);
cd50ba8e 4793
1be18254 4794 dev_err(&instance->pdev->dev, "INIT adapter done\n");
cd50ba8e 4795
3761cb4c 4796 megasas_setup_jbod_map(instance);
4797
39a98554 4798 /** for passthrough
da0dc9fb
BH		 4799 * the following function will get the PD LIST.
4800 */
4801 memset(instance->pd_list, 0,
81e403ce 4802 (MEGASAS_MAX_PD * sizeof(struct megasas_pd_list)));
58968fc8 4803 if (megasas_get_pd_list(instance) < 0) {
1be18254 4804 dev_err(&instance->pdev->dev, "failed to get PD list\n");
d3557fc8 4805 goto fail_get_pd_list;
58968fc8 4806 }
81e403ce 4807
bdc6fb8d 4808 memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS);
21c9e160 4809 if (megasas_ld_list_query(instance,
4810 MR_LD_QUERY_TYPE_EXPOSED_TO_HOST))
4811 megasas_get_ld_list(instance);
bdc6fb8d 4812
c4a3e0a5
BS		 4813 /*
4814 * Compute the max allowed sectors per IO: The controller info has two
4815 * limits on max sectors. Driver should use the minimum of these two.
4816 *
4817 * 1 << stripe_sz_ops.min = max sectors per strip
4818 *
4819 * Note that older firmwares ( < FW ver 30) didn't report information
4820 * to calculate max_sectors_1. So the number ended up as zero always.
4821 */
14faea9f 4822 tmp_sectors = 0;
51087a86 4823 ctrl_info = instance->ctrl_info;
c4a3e0a5 4824
51087a86
SS		 4825 max_sectors_1 = (1 << ctrl_info->stripe_sz_ops.min) *
4826 le16_to_cpu(ctrl_info->max_strips_per_io);
4827 max_sectors_2 = le32_to_cpu(ctrl_info->max_request_size);
404a8a1a 4828
da0dc9fb 4829 tmp_sectors = min_t(u32, max_sectors_1, max_sectors_2);
bc93d425 4830
51087a86
SS		 4831 instance->disableOnlineCtrlReset =
4832 ctrl_info->properties.OnOffProperties.disableOnlineCtrlReset;
51087a86
SS		 4833 instance->mpio = ctrl_info->adapterOperations2.mpio;
4834 instance->UnevenSpanSupport =
4835 ctrl_info->adapterOperations2.supportUnevenSpans;
4836 if (instance->UnevenSpanSupport) {
4837 struct fusion_context *fusion = instance->ctrl_context;
51087a86
SS		 4838 if (MR_ValidateMapInfo(instance))
4839 fusion->fast_path_io = 1;
4840 else
4841 fusion->fast_path_io = 0;
fc62b3fc 4842
51087a86
SS		 4843 }
4844 if (ctrl_info->host_interface.SRIOV) {
4845 if (!ctrl_info->adapterOperations2.activePassive)
4846 instance->PlasmaFW111 = 1;
fc62b3fc 4847
51087a86
SS		 4848 if (!instance->PlasmaFW111)
4849 instance->requestorId =
4850 ctrl_info->iov.requestorId;
4851 else {
4852 iovPtr = (struct IOV_111 *)((unsigned char *)ctrl_info + IOV_111_OFFSET);
4853 instance->requestorId = iovPtr->requestorId;
fc62b3fc 4854 }
51087a86
SS		 4855 dev_warn(&instance->pdev->dev, "I am VF "
4856 "requestorId %d\n", instance->requestorId);
4857 }
4858
51087a86
SS		 4859 instance->crash_dump_fw_support =
4860 ctrl_info->adapterOperations3.supportCrashDump;
4861 instance->crash_dump_drv_support =
4862 (instance->crash_dump_fw_support &&
4863 instance->crash_dump_buf);
d88da09a 4864 if (instance->crash_dump_drv_support)
51087a86
SS		 4865 megasas_set_crash_dump_params(instance,
4866 MR_CRASH_BUF_TURN_OFF);
4867
d88da09a 4868 else {
51087a86
SS		 4869 if (instance->crash_dump_buf)
4870 pci_free_consistent(instance->pdev,
4871 CRASH_DMA_BUF_SIZE,
4872 instance->crash_dump_buf,
4873 instance->crash_dump_h);
4874 instance->crash_dump_buf = NULL;
14faea9f 4875 }
7497cde8
SS		 4876
4877 instance->secure_jbod_support =
4878 ctrl_info->adapterOperations3.supportSecurityonJBOD;
d88da09a
SS		 4879
4880 dev_info(&instance->pdev->dev,
4881 "pci id\t\t: (0x%04x)/(0x%04x)/(0x%04x)/(0x%04x)\n",
4882 le16_to_cpu(ctrl_info->pci.vendor_id),
4883 le16_to_cpu(ctrl_info->pci.device_id),
4884 le16_to_cpu(ctrl_info->pci.sub_vendor_id),
4885 le16_to_cpu(ctrl_info->pci.sub_device_id));
4886 dev_info(&instance->pdev->dev, "unevenspan support : %s\n",
4887 instance->UnevenSpanSupport ? "yes" : "no");
4888 dev_info(&instance->pdev->dev, "disable ocr : %s\n",
4889 instance->disableOnlineCtrlReset ? "yes" : "no");
4890 dev_info(&instance->pdev->dev, "firmware crash dump : %s\n",
4891 instance->crash_dump_drv_support ? "yes" : "no");
4892 dev_info(&instance->pdev->dev, "secure jbod : %s\n",
4893 instance->secure_jbod_support ? "yes" : "no");
3761cb4c 4894 dev_info(&instance->pdev->dev, "jbod sync map : %s\n",
4895 instance->use_seqnum_jbod_fp ? "yes" : "no");
d88da09a
SS		 4896
4897
14faea9f 4898 instance->max_sectors_per_req = instance->max_num_sge *
4899 PAGE_SIZE / 512;
4900 if (tmp_sectors && (instance->max_sectors_per_req > tmp_sectors))
4901 instance->max_sectors_per_req = tmp_sectors;
c4a3e0a5 4902
ae09a6c1
SS		 4903 /* Check for valid throttlequeuedepth module parameter */
4904 if (throttlequeuedepth &&
4905 throttlequeuedepth <= instance->max_scsi_cmds)
4906 instance->throttlequeuedepth = throttlequeuedepth;
4907 else
4908 instance->throttlequeuedepth =
4909 MEGASAS_THROTTLE_QUEUE_DEPTH;
4910
ad84db2e 4911
229fe47c 4912 /* Launch SR-IOV heartbeat timer */
4913 if (instance->requestorId) {
4914 if (!megasas_sriov_start_heartbeat(instance, 1))
4915 megasas_start_timer(instance,
4916 &instance->sriov_heartbeat_timer,
4917 megasas_sriov_heartbeat_handler,
4918 MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF);
4919 else
4920 instance->skip_heartbeat_timer_del = 1;
4921 }
4922
c4a3e0a5
BS		 4923 return 0;
4924
d3557fc8
SS		 4925fail_get_pd_list:
4926 instance->instancet->disable_intr(instance);
eb1b1237 4927fail_init_adapter:
d3557fc8
SS		 4928 megasas_destroy_irqs(instance);
4929fail_setup_irqs:
4930 if (instance->msix_vectors)
4931 pci_disable_msix(instance->pdev);
4932 instance->msix_vectors = 0;
cd50ba8e 4933fail_ready_state:
51087a86
SS		 4934 kfree(instance->ctrl_info);
4935 instance->ctrl_info = NULL;
c4a3e0a5
BS		 4936 iounmap(instance->reg_set);
4937
4938 fail_ioremap:
b6d5d880 4939 pci_release_selected_regions(instance->pdev, instance->bar);
c4a3e0a5
BS		 4940
4941 return -EINVAL;
4942}
4943
4944/**
4945 * megasas_release_mfi - Reverses the FW initialization
4b63b286 4946 * @instance: Adapter soft state
c4a3e0a5
BS		 4947 */
4948static void megasas_release_mfi(struct megasas_instance *instance)
4949{
9c915a8c 4950 u32 reply_q_sz = sizeof(u32) *(instance->max_mfi_cmds + 1);
c4a3e0a5 4951
9c915a8c 4952 if (instance->reply_queue)
4953 pci_free_consistent(instance->pdev, reply_q_sz,
c4a3e0a5
BS		 4954 instance->reply_queue, instance->reply_queue_h);
4955
4956 megasas_free_cmds(instance);
4957
4958 iounmap(instance->reg_set);
4959
b6d5d880 4960 pci_release_selected_regions(instance->pdev, instance->bar);
c4a3e0a5
BS		 4961}
4962
4963/**
4964 * megasas_get_seq_num - Gets latest event sequence numbers
4965 * @instance: Adapter soft state
4966 * @eli: FW event log sequence numbers information
4967 *
4968 * FW maintains a log of all events in a non-volatile area. Upper layers would
4969 * usually find out the latest sequence number of the events, the seq number at
4970 * the boot etc. They would "read" all the events below the latest seq number
4971 * by issuing a direct fw cmd (DCMD). For the future events (beyond latest seq
4972 * number), they would subsribe to AEN (asynchronous event notification) and
4973 * wait for the events to happen.
4974 */
4975static int
4976megasas_get_seq_num(struct megasas_instance *instance,
4977 struct megasas_evt_log_info *eli)
4978{
4979 struct megasas_cmd *cmd;
4980 struct megasas_dcmd_frame *dcmd;
4981 struct megasas_evt_log_info *el_info;
4982 dma_addr_t el_info_h = 0;
4983
4984 cmd = megasas_get_cmd(instance);
4985
4986 if (!cmd) {
4987 return -ENOMEM;
4988 }
4989
4990 dcmd = &cmd->frame->dcmd;
4991 el_info = pci_alloc_consistent(instance->pdev,
4992 sizeof(struct megasas_evt_log_info),
4993 &el_info_h);
4994
4995 if (!el_info) {
4996 megasas_return_cmd(instance, cmd);
4997 return -ENOMEM;
4998 }
4999
5000 memset(el_info, 0, sizeof(*el_info));
5001 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
5002
5003 dcmd->cmd = MFI_CMD_DCMD;
5004 dcmd->cmd_status = 0x0;
5005 dcmd->sge_count = 1;
94cd65dd 5006 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_READ);
c4a3e0a5 5007 dcmd->timeout = 0;
780a3762 5008 dcmd->pad_0 = 0;
94cd65dd
SS		 5009 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct megasas_evt_log_info));
5010 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_EVENT_GET_INFO);
5011 dcmd->sgl.sge32[0].phys_addr = cpu_to_le32(el_info_h);
5012 dcmd->sgl.sge32[0].length = cpu_to_le32(sizeof(struct megasas_evt_log_info));
c4a3e0a5 5013
cfbe7554
SS		 5014 if (megasas_issue_blocked_cmd(instance, cmd, 30))
5015 dev_err(&instance->pdev->dev, "Command timedout"
5016 "from %s\n", __func__);
5017 else {
5018 /*
5019 * Copy the data back into callers buffer
5020 */
48100b0e
CH		 5021 eli->newest_seq_num = el_info->newest_seq_num;
5022 eli->oldest_seq_num = el_info->oldest_seq_num;
5023 eli->clear_seq_num = el_info->clear_seq_num;
5024 eli->shutdown_seq_num = el_info->shutdown_seq_num;
5025 eli->boot_seq_num = el_info->boot_seq_num;
cfbe7554 5026 }
c4a3e0a5
BS		 5027
5028 pci_free_consistent(instance->pdev, sizeof(struct megasas_evt_log_info),
5029 el_info, el_info_h);
5030
4026e9aa 5031 megasas_return_cmd(instance, cmd);
c4a3e0a5
BS		 5032
5033 return 0;
5034}
5035
5036/**
5037 * megasas_register_aen - Registers for asynchronous event notification
5038 * @instance: Adapter soft state
5039 * @seq_num: The starting sequence number
5040 * @class_locale: Class of the event
5041 *
5042 * This function subscribes for AEN for events beyond the @seq_num. It requests
5043 * to be notified if and only if the event is of type @class_locale
5044 */
5045static int
5046megasas_register_aen(struct megasas_instance *instance, u32 seq_num,
5047 u32 class_locale_word)
5048{
5049 int ret_val;
5050 struct megasas_cmd *cmd;
5051 struct megasas_dcmd_frame *dcmd;
5052 union megasas_evt_class_locale curr_aen;
5053 union megasas_evt_class_locale prev_aen;
5054
5055 /*
5056 * If there an AEN pending already (aen_cmd), check if the
5057 * class_locale of that pending AEN is inclusive of the new
5058 * AEN request we currently have. If it is, then we don't have
5059 * to do anything. In other words, whichever events the current
5060 * AEN request is subscribing to, have already been subscribed
5061 * to.
5062 *
5063 * If the old_cmd is _not_ inclusive, then we have to abort
5064 * that command, form a class_locale that is superset of both
5065 * old and current and re-issue to the FW
5066 */
5067
5068 curr_aen.word = class_locale_word;
5069
5070 if (instance->aen_cmd) {
5071
a9555534
CH		 5072 prev_aen.word =
5073 le32_to_cpu(instance->aen_cmd->frame->dcmd.mbox.w[1]);
c4a3e0a5
BS		 5074
5075 /*
5076 * A class whose enum value is smaller is inclusive of all
5077 * higher values. If a PROGRESS (= -1) was previously
5078 * registered, then a new registration requests for higher
5079 * classes need not be sent to FW. They are automatically
5080 * included.
5081 *
5082 * Locale numbers don't have such hierarchy. They are bitmap
5083 * values
5084 */
5085 if ((prev_aen.members.class <= curr_aen.members.class) &&
3993a862 5086 !((prev_aen.members.locale & curr_aen.members.locale) ^
c4a3e0a5
BS		 5087 curr_aen.members.locale)) {
5088 /*
5089 * Previously issued event registration includes
5090 * current request. Nothing to do.
5091 */
5092 return 0;
5093 } else {
3993a862 5094 curr_aen.members.locale |= prev_aen.members.locale;
c4a3e0a5
BS		 5095
5096 if (prev_aen.members.class < curr_aen.members.class)
5097 curr_aen.members.class = prev_aen.members.class;
5098
5099 instance->aen_cmd->abort_aen = 1;
5100 ret_val = megasas_issue_blocked_abort_cmd(instance,
5101 instance->
cfbe7554 5102 aen_cmd, 30);
c4a3e0a5
BS		 5103
5104 if (ret_val) {
1be18254 5105 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to abort "
c4a3e0a5
BS		 5106 "previous AEN command\n");
5107 return ret_val;
5108 }
5109 }
5110 }
5111
5112 cmd = megasas_get_cmd(instance);
5113
5114 if (!cmd)
5115 return -ENOMEM;
5116
5117 dcmd = &cmd->frame->dcmd;
5118
5119 memset(instance->evt_detail, 0, sizeof(struct megasas_evt_detail));
5120
5121 /*
5122 * Prepare DCMD for aen registration
5123 */
5124 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
5125
5126 dcmd->cmd = MFI_CMD_DCMD;
5127 dcmd->cmd_status = 0x0;
5128 dcmd->sge_count = 1;
94cd65dd 5129 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_READ);
c4a3e0a5 5130 dcmd->timeout = 0;
780a3762 5131 dcmd->pad_0 = 0;
94cd65dd
SS		 5132 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct megasas_evt_detail));
5133 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_EVENT_WAIT);
5134 dcmd->mbox.w[0] = cpu_to_le32(seq_num);
39a98554 5135 instance->last_seq_num = seq_num;
94cd65dd
SS		 5136 dcmd->mbox.w[1] = cpu_to_le32(curr_aen.word);
5137 dcmd->sgl.sge32[0].phys_addr = cpu_to_le32(instance->evt_detail_h);
5138 dcmd->sgl.sge32[0].length = cpu_to_le32(sizeof(struct megasas_evt_detail));
c4a3e0a5 5139
f4c9a131
YB		 5140 if (instance->aen_cmd != NULL) {
5141 megasas_return_cmd(instance, cmd);
5142 return 0;
5143 }
5144
c4a3e0a5
BS		 5145 /*
5146 * Store reference to the cmd used to register for AEN. When an
5147 * application wants us to register for AEN, we have to abort this
5148 * cmd and re-register with a new EVENT LOCALE supplied by that app
5149 */
5150 instance->aen_cmd = cmd;
5151
5152 /*
5153 * Issue the aen registration frame
5154 */
9c915a8c 5155 instance->instancet->issue_dcmd(instance, cmd);
c4a3e0a5
BS		 5156
5157 return 0;
5158}
5159
5160/**
5161 * megasas_start_aen - Subscribes to AEN during driver load time
5162 * @instance: Adapter soft state
5163 */
5164static int megasas_start_aen(struct megasas_instance *instance)
5165{
5166 struct megasas_evt_log_info eli;
5167 union megasas_evt_class_locale class_locale;
5168
5169 /*
5170 * Get the latest sequence number from FW
5171 */
5172 memset(&eli, 0, sizeof(eli));
5173
5174 if (megasas_get_seq_num(instance, &eli))
5175 return -1;
5176
5177 /*
5178 * Register AEN with FW for latest sequence number plus 1
5179 */
5180 class_locale.members.reserved = 0;
5181 class_locale.members.locale = MR_EVT_LOCALE_ALL;
5182 class_locale.members.class = MR_EVT_CLASS_DEBUG;
5183
94cd65dd 5184 return megasas_register_aen(instance,
48100b0e 5185 le32_to_cpu(eli.newest_seq_num) + 1,
94cd65dd 5186 class_locale.word);
c4a3e0a5
BS		 5187}
5188
5189/**
5190 * megasas_io_attach - Attaches this driver to SCSI mid-layer
5191 * @instance: Adapter soft state
5192 */
5193static int megasas_io_attach(struct megasas_instance *instance)
5194{
5195 struct Scsi_Host *host = instance->host;
da0dc9fb 5196 u32 error;
c4a3e0a5
BS		 5197
5198 /*
5199 * Export parameters required by SCSI mid-layer
5200 */
5201 host->irq = instance->pdev->irq;
5202 host->unique_id = instance->unique_id;
ae09a6c1 5203 host->can_queue = instance->max_scsi_cmds;
c4a3e0a5
BS		 5204 host->this_id = instance->init_id;
5205 host->sg_tablesize = instance->max_num_sge;
42a8d2b3 5206
5207 if (instance->fw_support_ieee)
5208 instance->max_sectors_per_req = MEGASAS_MAX_SECTORS_IEEE;
5209
1fd10685
YB		 5210 /*
5211 * Check if the module parameter value for max_sectors can be used
5212 */
5213 if (max_sectors && max_sectors < instance->max_sectors_per_req)
5214 instance->max_sectors_per_req = max_sectors;
5215 else {
5216 if (max_sectors) {
5217 if (((instance->pdev->device ==
5218 PCI_DEVICE_ID_LSI_SAS1078GEN2) ||
5219 (instance->pdev->device ==
5220 PCI_DEVICE_ID_LSI_SAS0079GEN2)) &&
5221 (max_sectors <= MEGASAS_MAX_SECTORS)) {
5222 instance->max_sectors_per_req = max_sectors;
5223 } else {
1be18254 5224 dev_info(&instance->pdev->dev, "max_sectors should be > 0"
1fd10685
YB		 5225 "and <= %d (or < 1MB for GEN2 controller)\n",
5226 instance->max_sectors_per_req);
5227 }
5228 }
5229 }
5230
c4a3e0a5 5231 host->max_sectors = instance->max_sectors_per_req;
9c915a8c 5232 host->cmd_per_lun = MEGASAS_DEFAULT_CMD_PER_LUN;
c4a3e0a5
BS		 5233 host->max_channel = MEGASAS_MAX_CHANNELS - 1;
5234 host->max_id = MEGASAS_MAX_DEV_PER_CHANNEL;
5235 host->max_lun = MEGASAS_MAX_LUN;
122da302 5236 host->max_cmd_len = 16;
c4a3e0a5 5237
9c915a8c 5238 /* Fusion only supports host reset */
36807e67 5239 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_FUSION) ||
229fe47c 5240 (instance->pdev->device == PCI_DEVICE_ID_LSI_PLASMA) ||
21d3c710
SS		 5241 (instance->pdev->device == PCI_DEVICE_ID_LSI_INVADER) ||
5242 (instance->pdev->device == PCI_DEVICE_ID_LSI_FURY)) {
9c915a8c 5243 host->hostt->eh_device_reset_handler = NULL;
5244 host->hostt->eh_bus_reset_handler = NULL;
5245 }
4026e9aa
SS		 5246 error = scsi_init_shared_tag_map(host, host->can_queue);
5247 if (error) {
5248 dev_err(&instance->pdev->dev,
5249 "Failed to shared tag from %s %d\n",
5250 __func__, __LINE__);
5251 return -ENODEV;
5252 }
9c915a8c 5253
c4a3e0a5
BS		 5254 /*
5255 * Notify the mid-layer about the new controller
5256 */
5257 if (scsi_add_host(host, &instance->pdev->dev)) {
4026e9aa
SS		 5258 dev_err(&instance->pdev->dev,
5259 "Failed to add host from %s %d\n",
5260 __func__, __LINE__);
c4a3e0a5
BS		 5261 return -ENODEV;
5262 }
5263
c4a3e0a5
BS		 5264 return 0;
5265}
5266
31ea7088 5267static int
5268megasas_set_dma_mask(struct pci_dev *pdev)
5269{
5270 /*
da0dc9fb 5271 * All our controllers are capable of performing 64-bit DMA
31ea7088 5272 */
5273 if (IS_DMA64) {
6a35528a 5274 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0) {
31ea7088 5275
284901a9 5276 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0)
31ea7088 5277 goto fail_set_dma_mask;
5278 }
5279 } else {
284901a9 5280 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0)
31ea7088 5281 goto fail_set_dma_mask;
5282 }
46de63e2
SS		 5283 /*
5284 * Ensure that all data structures are allocated in 32-bit
5285 * memory.
5286 */
5287 if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)) != 0) {
5288 /* Try 32bit DMA mask and 32 bit Consistent dma mask */
5289 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))
5290 && !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
5291 dev_info(&pdev->dev, "set 32bit DMA mask"
5292 "and 32 bit consistent mask\n");
5293 else
5294 goto fail_set_dma_mask;
5295 }
94cd65dd 5296
31ea7088 5297 return 0;
5298
5299fail_set_dma_mask:
5300 return 1;
5301}
5302
c4a3e0a5
BS		 5303/**
5304 * megasas_probe_one - PCI hotplug entry point
5305 * @pdev: PCI device structure
0d49016b 5306 * @id: PCI ids of supported hotplugged adapter
c4a3e0a5 5307 */
6f039790
GKH		 5308static int megasas_probe_one(struct pci_dev *pdev,
5309 const struct pci_device_id *id)
c4a3e0a5 5310{
d3557fc8 5311 int rval, pos;
c4a3e0a5
BS		 5312 struct Scsi_Host *host;
5313 struct megasas_instance *instance;
66192dfe 5314 u16 control = 0;
51087a86 5315 struct fusion_context *fusion = NULL;
66192dfe 5316
5317 /* Reset MSI-X in the kdump kernel */
5318 if (reset_devices) {
5319 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
5320 if (pos) {
99369065 5321 pci_read_config_word(pdev, pos + PCI_MSIX_FLAGS,
66192dfe 5322 &control);
5323 if (control & PCI_MSIX_FLAGS_ENABLE) {
5324 dev_info(&pdev->dev, "resetting MSI-X\n");
5325 pci_write_config_word(pdev,
99369065 5326 pos + PCI_MSIX_FLAGS,
66192dfe 5327 control &
5328 ~PCI_MSIX_FLAGS_ENABLE);
5329 }
5330 }
5331 }
c4a3e0a5 5332
c4a3e0a5
BS		 5333 /*
5334 * PCI prepping: enable device set bus mastering and dma mask
5335 */
aeab3fd7 5336 rval = pci_enable_device_mem(pdev);
c4a3e0a5
BS		 5337
5338 if (rval) {
5339 return rval;
5340 }
5341
5342 pci_set_master(pdev);
5343
31ea7088 5344 if (megasas_set_dma_mask(pdev))
5345 goto fail_set_dma_mask;
c4a3e0a5
BS		 5346
5347 host = scsi_host_alloc(&megasas_template,
5348 sizeof(struct megasas_instance));
5349
5350 if (!host) {
1be18254 5351 dev_printk(KERN_DEBUG, &pdev->dev, "scsi_host_alloc failed\n");
c4a3e0a5
BS		 5352 goto fail_alloc_instance;
5353 }
5354
5355 instance = (struct megasas_instance *)host->hostdata;
5356 memset(instance, 0, sizeof(*instance));
da0dc9fb 5357 atomic_set(&instance->fw_reset_no_pci_access, 0);
9c915a8c 5358 instance->pdev = pdev;
c4a3e0a5 5359
9c915a8c 5360 switch (instance->pdev->device) {
5361 case PCI_DEVICE_ID_LSI_FUSION:
229fe47c 5362 case PCI_DEVICE_ID_LSI_PLASMA:
36807e67 5363 case PCI_DEVICE_ID_LSI_INVADER:
21d3c710 5364 case PCI_DEVICE_ID_LSI_FURY:
9c915a8c 5365 {
51087a86
SS		 5366 instance->ctrl_context_pages =
5367 get_order(sizeof(struct fusion_context));
5368 instance->ctrl_context = (void *)__get_free_pages(GFP_KERNEL,
5369 instance->ctrl_context_pages);
9c915a8c 5370 if (!instance->ctrl_context) {
1be18254 5371 dev_printk(KERN_DEBUG, &pdev->dev, "Failed to allocate "
9c915a8c 5372 "memory for Fusion context info\n");
5373 goto fail_alloc_dma_buf;
5374 }
5375 fusion = instance->ctrl_context;
d009b576
SS		 5376 memset(fusion, 0,
5377 ((1 << PAGE_SHIFT) << instance->ctrl_context_pages));
9c915a8c 5378 }
5379 break;
5380 default: /* For all other supported controllers */
5381
5382 instance->producer =
5383 pci_alloc_consistent(pdev, sizeof(u32),
5384 &instance->producer_h);
5385 instance->consumer =
5386 pci_alloc_consistent(pdev, sizeof(u32),
5387 &instance->consumer_h);
5388
5389 if (!instance->producer || !instance->consumer) {
1be18254 5390 dev_printk(KERN_DEBUG, &pdev->dev, "Failed to allocate"
9c915a8c 5391 "memory for producer, consumer\n");
5392 goto fail_alloc_dma_buf;
5393 }
c4a3e0a5 5394
9c915a8c 5395 *instance->producer = 0;
5396 *instance->consumer = 0;
5397 break;
c4a3e0a5
BS		 5398 }
5399
5765c5b8
SS		 5400 instance->system_info_buf = pci_zalloc_consistent(pdev,
5401 sizeof(struct MR_DRV_SYSTEM_INFO),
5402 &instance->system_info_h);
5403
5404 if (!instance->system_info_buf)
5405 dev_info(&instance->pdev->dev, "Can't allocate system info buffer\n");
5406
fc62b3fc
SS		 5407 /* Crash dump feature related initialisation*/
5408 instance->drv_buf_index = 0;
5409 instance->drv_buf_alloc = 0;
5410 instance->crash_dump_fw_support = 0;
5411 instance->crash_dump_app_support = 0;
5412 instance->fw_crash_state = UNAVAILABLE;
5413 spin_lock_init(&instance->crashdump_lock);
5414 instance->crash_dump_buf = NULL;
5415
5416 if (!reset_devices)
5417 instance->crash_dump_buf = pci_alloc_consistent(pdev,
5418 CRASH_DMA_BUF_SIZE,
5419 &instance->crash_dump_h);
5420 if (!instance->crash_dump_buf)
1be18254 5421 dev_err(&pdev->dev, "Can't allocate Firmware "
fc62b3fc
SS		 5422 "crash dump DMA buffer\n");
5423
c3518837 5424 megasas_poll_wait_aen = 0;
f4c9a131 5425 instance->flag_ieee = 0;
7e8a75f4 5426 instance->ev = NULL;
39a98554 5427 instance->issuepend_done = 1;
5428 instance->adprecovery = MEGASAS_HBA_OPERATIONAL;
404a8a1a 5429 instance->is_imr = 0;
c4a3e0a5
BS		 5430
5431 instance->evt_detail = pci_alloc_consistent(pdev,
5432 sizeof(struct
5433 megasas_evt_detail),
5434 &instance->evt_detail_h);
5435
5436 if (!instance->evt_detail) {
1be18254 5437 dev_printk(KERN_DEBUG, &pdev->dev, "Failed to allocate memory for "
c4a3e0a5
BS		 5438 "event detail structure\n");
5439 goto fail_alloc_dma_buf;
5440 }
5441
5442 /*
5443 * Initialize locks and queues
5444 */
5445 INIT_LIST_HEAD(&instance->cmd_pool);
39a98554 5446 INIT_LIST_HEAD(&instance->internal_reset_pending_q);
c4a3e0a5 5447
e4a082c7
SP		 5448 atomic_set(&instance->fw_outstanding,0);
5449
c4a3e0a5
BS		 5450 init_waitqueue_head(&instance->int_cmd_wait_q);
5451 init_waitqueue_head(&instance->abort_cmd_wait_q);
5452
90dc9d98 5453 spin_lock_init(&instance->mfi_pool_lock);
39a98554 5454 spin_lock_init(&instance->hba_lock);
7343eb65 5455 spin_lock_init(&instance->completion_lock);
c4a3e0a5 5456
e5a69e27 5457 mutex_init(&instance->aen_mutex);
9c915a8c 5458 mutex_init(&instance->reset_mutex);
c4a3e0a5
BS		 5459
5460 /*
5461 * Initialize PCI related and misc parameters
5462 */
c4a3e0a5
BS		 5463 instance->host = host;
5464 instance->unique_id = pdev->bus->number << 8 | pdev->devfn;
5465 instance->init_id = MEGASAS_DEFAULT_INIT_ID;
51087a86 5466 instance->ctrl_info = NULL;
c4a3e0a5 5467
ae09a6c1 5468
7bebf5c7 5469 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
ae09a6c1 5470 (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY))
f4c9a131 5471 instance->flag_ieee = 1;
7bebf5c7 5472
658dcedb 5473 megasas_dbg_lvl = 0;
05e9ebbe 5474 instance->flag = 0;
0c79e681 5475 instance->unload = 1;
05e9ebbe 5476 instance->last_time = 0;
39a98554 5477 instance->disableOnlineCtrlReset = 1;
bc93d425 5478 instance->UnevenSpanSupport = 0;
39a98554 5479
36807e67 5480 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_FUSION) ||
229fe47c 5481 (instance->pdev->device == PCI_DEVICE_ID_LSI_PLASMA) ||
21d3c710 5482 (instance->pdev->device == PCI_DEVICE_ID_LSI_INVADER) ||
fc62b3fc 5483 (instance->pdev->device == PCI_DEVICE_ID_LSI_FURY)) {
9c915a8c 5484 INIT_WORK(&instance->work_init, megasas_fusion_ocr_wq);
fc62b3fc
SS		 5485 INIT_WORK(&instance->crash_init, megasas_fusion_crash_dump_wq);
5486 } else
9c915a8c 5487 INIT_WORK(&instance->work_init, process_fw_state_change_wq);
658dcedb 5488
0a77066a 5489 /*
5490 * Initialize MFI Firmware
5491 */
5492 if (megasas_init_fw(instance))
5493 goto fail_init_mfi;
5494
229fe47c 5495 if (instance->requestorId) {
5496 if (instance->PlasmaFW111) {
5497 instance->vf_affiliation_111 =
5498 pci_alloc_consistent(pdev, sizeof(struct MR_LD_VF_AFFILIATION_111),
5499 &instance->vf_affiliation_111_h);
5500 if (!instance->vf_affiliation_111)
1be18254 5501 dev_warn(&pdev->dev, "Can't allocate "
229fe47c 5502 "memory for VF affiliation buffer\n");
5503 } else {
5504 instance->vf_affiliation =
5505 pci_alloc_consistent(pdev,
5506 (MAX_LOGICAL_DRIVES + 1) *
5507 sizeof(struct MR_LD_VF_AFFILIATION),
5508 &instance->vf_affiliation_h);
5509 if (!instance->vf_affiliation)
1be18254 5510 dev_warn(&pdev->dev, "Can't allocate "
229fe47c 5511 "memory for VF affiliation buffer\n");
5512 }
5513 }
5514
c4a3e0a5
BS		 5515 /*
5516 * Store instance in PCI softstate
5517 */
5518 pci_set_drvdata(pdev, instance);
5519
5520 /*
5521 * Add this controller to megasas_mgmt_info structure so that it
5522 * can be exported to management applications
5523 */
5524 megasas_mgmt_info.count++;
5525 megasas_mgmt_info.instance[megasas_mgmt_info.max_index] = instance;
5526 megasas_mgmt_info.max_index++;
5527
541f90b7 5528 /*
5529 * Register with SCSI mid-layer
5530 */
5531 if (megasas_io_attach(instance))
5532 goto fail_io_attach;
5533
5534 instance->unload = 0;
aa00832b
SS		 5535 /*
5536 * Trigger SCSI to scan our drives
5537 */
5538 scsi_scan_host(host);
541f90b7 5539
c4a3e0a5
BS		 5540 /*
5541 * Initiate AEN (Asynchronous Event Notification)
5542 */
5543 if (megasas_start_aen(instance)) {
1be18254 5544 dev_printk(KERN_DEBUG, &pdev->dev, "start aen failed\n");
c4a3e0a5
BS		 5545 goto fail_start_aen;
5546 }
5547
9ea81f81
AR		 5548 /* Get current SR-IOV LD/VF affiliation */
5549 if (instance->requestorId)
5550 megasas_get_ld_vf_affiliation(instance, 1);
5551
c4a3e0a5
BS		 5552 return 0;
5553
da0dc9fb
BH		 5554fail_start_aen:
5555fail_io_attach:
c4a3e0a5
BS		 5556 megasas_mgmt_info.count--;
5557 megasas_mgmt_info.instance[megasas_mgmt_info.max_index] = NULL;
5558 megasas_mgmt_info.max_index--;
5559
d46a3ad6 5560 instance->instancet->disable_intr(instance);
d3557fc8
SS		 5561 megasas_destroy_irqs(instance);
5562
36807e67 5563 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_FUSION) ||
229fe47c 5564 (instance->pdev->device == PCI_DEVICE_ID_LSI_PLASMA) ||
21d3c710
SS		 5565 (instance->pdev->device == PCI_DEVICE_ID_LSI_INVADER) ||
5566 (instance->pdev->device == PCI_DEVICE_ID_LSI_FURY))
eb1b1237 5567 megasas_release_fusion(instance);
5568 else
5569 megasas_release_mfi(instance);
c8e858fe 5570 if (instance->msix_vectors)
0a77066a 5571 pci_disable_msix(instance->pdev);
d3557fc8 5572fail_init_mfi:
da0dc9fb 5573fail_alloc_dma_buf:
c4a3e0a5
BS		 5574 if (instance->evt_detail)
5575 pci_free_consistent(pdev, sizeof(struct megasas_evt_detail),
5576 instance->evt_detail,
5577 instance->evt_detail_h);
5578
eb1b1237 5579 if (instance->producer)
c4a3e0a5
BS		 5580 pci_free_consistent(pdev, sizeof(u32), instance->producer,
5581 instance->producer_h);
5582 if (instance->consumer)
5583 pci_free_consistent(pdev, sizeof(u32), instance->consumer,
5584 instance->consumer_h);
5585 scsi_host_put(host);
5586
da0dc9fb
BH		 5587fail_alloc_instance:
5588fail_set_dma_mask:
c4a3e0a5
BS		 5589 pci_disable_device(pdev);
5590
5591 return -ENODEV;
5592}
5593
5594/**
5595 * megasas_flush_cache - Requests FW to flush all its caches
5596 * @instance: Adapter soft state
5597 */
5598static void megasas_flush_cache(struct megasas_instance *instance)
5599{
5600 struct megasas_cmd *cmd;
5601 struct megasas_dcmd_frame *dcmd;
5602
39a98554 5603 if (instance->adprecovery == MEGASAS_HW_CRITICAL_ERROR)
5604 return;
5605
c4a3e0a5
BS		 5606 cmd = megasas_get_cmd(instance);
5607
5608 if (!cmd)
5609 return;
5610
5611 dcmd = &cmd->frame->dcmd;
5612
5613 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
5614
5615 dcmd->cmd = MFI_CMD_DCMD;
5616 dcmd->cmd_status = 0x0;
5617 dcmd->sge_count = 0;
94cd65dd 5618 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_NONE);
c4a3e0a5 5619 dcmd->timeout = 0;
780a3762 5620 dcmd->pad_0 = 0;
c4a3e0a5 5621 dcmd->data_xfer_len = 0;
94cd65dd 5622 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_CACHE_FLUSH);
c4a3e0a5
BS		 5623 dcmd->mbox.b[0] = MR_FLUSH_CTRL_CACHE | MR_FLUSH_DISK_CACHE;
5624
cfbe7554
SS		 5625 if (megasas_issue_blocked_cmd(instance, cmd, 30))
5626 dev_err(&instance->pdev->dev, "Command timedout"
5627 " from %s\n", __func__);
c4a3e0a5 5628
4026e9aa 5629 megasas_return_cmd(instance, cmd);
c4a3e0a5
BS		 5630}
5631
5632/**
5633 * megasas_shutdown_controller - Instructs FW to shutdown the controller
5634 * @instance: Adapter soft state
31ea7088 5635 * @opcode: Shutdown/Hibernate
c4a3e0a5 5636 */
31ea7088 5637static void megasas_shutdown_controller(struct megasas_instance *instance,
5638 u32 opcode)
c4a3e0a5
BS		 5639{
5640 struct megasas_cmd *cmd;
5641 struct megasas_dcmd_frame *dcmd;
5642
39a98554 5643 if (instance->adprecovery == MEGASAS_HW_CRITICAL_ERROR)
5644 return;
5645
c4a3e0a5
BS		 5646 cmd = megasas_get_cmd(instance);
5647
5648 if (!cmd)
5649 return;
5650
5651 if (instance->aen_cmd)
cfbe7554 5652 megasas_issue_blocked_abort_cmd(instance,
e0bd0874 5653 instance->aen_cmd, MEGASAS_BLOCKED_CMD_TIMEOUT);
9c915a8c 5654 if (instance->map_update_cmd)
5655 megasas_issue_blocked_abort_cmd(instance,
e0bd0874 5656 instance->map_update_cmd, MEGASAS_BLOCKED_CMD_TIMEOUT);
3761cb4c 5657 if (instance->jbod_seq_cmd)
5658 megasas_issue_blocked_abort_cmd(instance,
5659 instance->jbod_seq_cmd, MEGASAS_BLOCKED_CMD_TIMEOUT);
5660
c4a3e0a5
BS		 5661 dcmd = &cmd->frame->dcmd;
5662
5663 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);
5664
5665 dcmd->cmd = MFI_CMD_DCMD;
5666 dcmd->cmd_status = 0x0;
5667 dcmd->sge_count = 0;
94cd65dd 5668 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_NONE);
c4a3e0a5 5669 dcmd->timeout = 0;
780a3762 5670 dcmd->pad_0 = 0;
c4a3e0a5 5671 dcmd->data_xfer_len = 0;
94cd65dd 5672 dcmd->opcode = cpu_to_le32(opcode);
c4a3e0a5 5673
cfbe7554
SS		 5674 if (megasas_issue_blocked_cmd(instance, cmd, 30))
5675 dev_err(&instance->pdev->dev, "Command timedout"
5676 "from %s\n", __func__);
c4a3e0a5 5677
4026e9aa 5678 megasas_return_cmd(instance, cmd);
c4a3e0a5
BS		 5679}
5680
33139b21 5681#ifdef CONFIG_PM
31ea7088 5682/**
ad84db2e 5683 * megasas_suspend - driver suspend entry point
5684 * @pdev: PCI device structure
31ea7088 5685 * @state: PCI power state to suspend routine
5686 */
33139b21 5687static int
31ea7088 5688megasas_suspend(struct pci_dev *pdev, pm_message_t state)
5689{
5690 struct Scsi_Host *host;
5691 struct megasas_instance *instance;
5692
5693 instance = pci_get_drvdata(pdev);
5694 host = instance->host;
0c79e681 5695 instance->unload = 1;
31ea7088 5696
229fe47c 5697 /* Shutdown SR-IOV heartbeat timer */
5698 if (instance->requestorId && !instance->skip_heartbeat_timer_del)
5699 del_timer_sync(&instance->sriov_heartbeat_timer);
5700
31ea7088 5701 megasas_flush_cache(instance);
5702 megasas_shutdown_controller(instance, MR_DCMD_HIBERNATE_SHUTDOWN);
7e8a75f4
YB		 5703
5704 /* cancel the delayed work if this work still in queue */
5705 if (instance->ev != NULL) {
5706 struct megasas_aen_event *ev = instance->ev;
c1d390d8 5707 cancel_delayed_work_sync(&ev->hotplug_work);
7e8a75f4
YB		 5708 instance->ev = NULL;
5709 }
5710
31ea7088 5711 tasklet_kill(&instance->isr_tasklet);
5712
5713 pci_set_drvdata(instance->pdev, instance);
d46a3ad6 5714 instance->instancet->disable_intr(instance);
c8e858fe 5715
d3557fc8
SS		 5716 megasas_destroy_irqs(instance);
5717
c8e858fe 5718 if (instance->msix_vectors)
80d9da98 5719 pci_disable_msix(instance->pdev);
31ea7088 5720
5721 pci_save_state(pdev);
5722 pci_disable_device(pdev);
5723
5724 pci_set_power_state(pdev, pci_choose_state(pdev, state));
5725
5726 return 0;
5727}
5728
5729/**
5730 * megasas_resume- driver resume entry point
5731 * @pdev: PCI device structure
5732 */
33139b21 5733static int
31ea7088 5734megasas_resume(struct pci_dev *pdev)
5735{
d3557fc8 5736 int rval;
31ea7088 5737 struct Scsi_Host *host;
5738 struct megasas_instance *instance;
5739
5740 instance = pci_get_drvdata(pdev);
5741 host = instance->host;
5742 pci_set_power_state(pdev, PCI_D0);
5743 pci_enable_wake(pdev, PCI_D0, 0);
5744 pci_restore_state(pdev);
5745
5746 /*
5747 * PCI prepping: enable device set bus mastering and dma mask
5748 */
aeab3fd7 5749 rval = pci_enable_device_mem(pdev);
31ea7088 5750
5751 if (rval) {
1be18254 5752 dev_err(&pdev->dev, "Enable device failed\n");
31ea7088 5753 return rval;
5754 }
5755
5756 pci_set_master(pdev);
5757
5758 if (megasas_set_dma_mask(pdev))
5759 goto fail_set_dma_mask;
5760
5761 /*
5762 * Initialize MFI Firmware
5763 */
5764
31ea7088 5765 atomic_set(&instance->fw_outstanding, 0);
5766
5767 /*
5768 * We expect the FW state to be READY
5769 */
058a8fac 5770 if (megasas_transition_to_ready(instance, 0))
31ea7088 5771 goto fail_ready_state;
5772
3f1abce4 5773 /* Now re-enable MSI-X */
dd088128 5774 if (instance->msix_vectors &&
8ae80ed1
AG		 5775 pci_enable_msix_exact(instance->pdev, instance->msixentry,
5776 instance->msix_vectors))
dd088128 5777 goto fail_reenable_msix;
3f1abce4 5778
9c915a8c 5779 switch (instance->pdev->device) {
5780 case PCI_DEVICE_ID_LSI_FUSION:
229fe47c 5781 case PCI_DEVICE_ID_LSI_PLASMA:
36807e67 5782 case PCI_DEVICE_ID_LSI_INVADER:
21d3c710 5783 case PCI_DEVICE_ID_LSI_FURY:
9c915a8c 5784 {
5785 megasas_reset_reply_desc(instance);
5786 if (megasas_ioc_init_fusion(instance)) {
5787 megasas_free_cmds(instance);
5788 megasas_free_cmds_fusion(instance);
5789 goto fail_init_mfi;
5790 }
5791 if (!megasas_get_map_info(instance))
5792 megasas_sync_map_info(instance);
5793 }
5794 break;
5795 default:
5796 *instance->producer = 0;
5797 *instance->consumer = 0;
5798 if (megasas_issue_init_mfi(instance))
5799 goto fail_init_mfi;
5800 break;
5801 }
31ea7088 5802
9c915a8c 5803 tasklet_init(&instance->isr_tasklet, instance->instancet->tasklet,
5804 (unsigned long)instance);
31ea7088 5805
d3557fc8
SS		 5806 if (instance->msix_vectors ?
5807 megasas_setup_irqs_msix(instance, 0) :
5808 megasas_setup_irqs_ioapic(instance))
5809 goto fail_init_mfi;
31ea7088 5810
229fe47c 5811 /* Re-launch SR-IOV heartbeat timer */
5812 if (instance->requestorId) {
5813 if (!megasas_sriov_start_heartbeat(instance, 0))
5814 megasas_start_timer(instance,
5815 &instance->sriov_heartbeat_timer,
5816 megasas_sriov_heartbeat_handler,
5817 MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF);
5765c5b8 5818 else {
229fe47c 5819 instance->skip_heartbeat_timer_del = 1;
5765c5b8
SS		 5820 goto fail_init_mfi;
5821 }
229fe47c 5822 }
5823
d46a3ad6 5824 instance->instancet->enable_intr(instance);
3761cb4c 5825 megasas_setup_jbod_map(instance);
0c79e681
YB		 5826 instance->unload = 0;
5827
541f90b7 5828 /*
5829 * Initiate AEN (Asynchronous Event Notification)
5830 */
5831 if (megasas_start_aen(instance))
1be18254 5832 dev_err(&instance->pdev->dev, "Start AEN failed\n");
541f90b7 5833
31ea7088 5834 return 0;
5835
31ea7088 5836fail_init_mfi:
5837 if (instance->evt_detail)
5838 pci_free_consistent(pdev, sizeof(struct megasas_evt_detail),
5839 instance->evt_detail,
5840 instance->evt_detail_h);
5841
5842 if (instance->producer)
5843 pci_free_consistent(pdev, sizeof(u32), instance->producer,
5844 instance->producer_h);
5845 if (instance->consumer)
5846 pci_free_consistent(pdev, sizeof(u32), instance->consumer,
5847 instance->consumer_h);
5848 scsi_host_put(host);
5849
5850fail_set_dma_mask:
5851fail_ready_state:
dd088128 5852fail_reenable_msix:
31ea7088 5853
5854 pci_disable_device(pdev);
5855
5856 return -ENODEV;
5857}
33139b21
JS		 5858#else
5859#define megasas_suspend NULL
5860#define megasas_resume NULL
5861#endif
31ea7088 5862
c4a3e0a5
BS		 5863/**
5864 * megasas_detach_one - PCI hot"un"plug entry point
5865 * @pdev: PCI device structure
5866 */
6f039790 5867static void megasas_detach_one(struct pci_dev *pdev)
c4a3e0a5
BS		 5868{
5869 int i;
5870 struct Scsi_Host *host;
5871 struct megasas_instance *instance;
9c915a8c 5872 struct fusion_context *fusion;
3761cb4c 5873 u32 pd_seq_map_sz;
c4a3e0a5
BS		 5874
5875 instance = pci_get_drvdata(pdev);
c3518837 5876 instance->unload = 1;
c4a3e0a5 5877 host = instance->host;
9c915a8c 5878 fusion = instance->ctrl_context;
c4a3e0a5 5879
229fe47c 5880 /* Shutdown SR-IOV heartbeat timer */
5881 if (instance->requestorId && !instance->skip_heartbeat_timer_del)
5882 del_timer_sync(&instance->sriov_heartbeat_timer);
5883
fc62b3fc
SS		 5884 if (instance->fw_crash_state != UNAVAILABLE)
5885 megasas_free_host_crash_buffer(instance);
c4a3e0a5
BS		 5886 scsi_remove_host(instance->host);
5887 megasas_flush_cache(instance);
31ea7088 5888 megasas_shutdown_controller(instance, MR_DCMD_CTRL_SHUTDOWN);
7e8a75f4
YB		 5889
5890 /* cancel the delayed work if this work still in queue*/
5891 if (instance->ev != NULL) {
5892 struct megasas_aen_event *ev = instance->ev;
c1d390d8 5893 cancel_delayed_work_sync(&ev->hotplug_work);
7e8a75f4
YB		 5894 instance->ev = NULL;
5895 }
5896
cfbe7554
SS		 5897 /* cancel all wait events */
5898 wake_up_all(&instance->int_cmd_wait_q);
5899
5d018ad0 5900 tasklet_kill(&instance->isr_tasklet);
c4a3e0a5
BS		 5901
5902 /*
5903 * Take the instance off the instance array. Note that we will not
5904 * decrement the max_index. We let this array be sparse array
5905 */
5906 for (i = 0; i < megasas_mgmt_info.max_index; i++) {
5907 if (megasas_mgmt_info.instance[i] == instance) {
5908 megasas_mgmt_info.count--;
5909 megasas_mgmt_info.instance[i] = NULL;
5910
5911 break;
5912 }
5913 }
5914
d46a3ad6 5915 instance->instancet->disable_intr(instance);
c4a3e0a5 5916
d3557fc8
SS		 5917 megasas_destroy_irqs(instance);
5918
c8e858fe 5919 if (instance->msix_vectors)
80d9da98 5920 pci_disable_msix(instance->pdev);
c4a3e0a5 5921
9c915a8c 5922 switch (instance->pdev->device) {
5923 case PCI_DEVICE_ID_LSI_FUSION:
229fe47c 5924 case PCI_DEVICE_ID_LSI_PLASMA:
36807e67 5925 case PCI_DEVICE_ID_LSI_INVADER:
21d3c710 5926 case PCI_DEVICE_ID_LSI_FURY:
9c915a8c 5927 megasas_release_fusion(instance);
3761cb4c 5928 pd_seq_map_sz = sizeof(struct MR_PD_CFG_SEQ_NUM_SYNC) +
5929 (sizeof(struct MR_PD_CFG_SEQ) *
5930 (MAX_PHYSICAL_DEVICES - 1));
51087a86 5931 for (i = 0; i < 2 ; i++) {
9c915a8c 5932 if (fusion->ld_map[i])
5933 dma_free_coherent(&instance->pdev->dev,
51087a86 5934 fusion->max_map_sz,
9c915a8c 5935 fusion->ld_map[i],
51087a86
SS		 5936 fusion->ld_map_phys[i]);
5937 if (fusion->ld_drv_map[i])
5938 free_pages((ulong)fusion->ld_drv_map[i],
5939 fusion->drv_map_pages);
3761cb4c 5940 if (fusion->pd_seq_sync)
5941 dma_free_coherent(&instance->pdev->dev,
5942 pd_seq_map_sz,
5943 fusion->pd_seq_sync[i],
5944 fusion->pd_seq_phys[i]);
51087a86
SS		 5945 }
5946 free_pages((ulong)instance->ctrl_context,
5947 instance->ctrl_context_pages);
9c915a8c 5948 break;
5949 default:
5950 megasas_release_mfi(instance);
9c915a8c 5951 pci_free_consistent(pdev, sizeof(u32),
5952 instance->producer,
5953 instance->producer_h);
5954 pci_free_consistent(pdev, sizeof(u32),
5955 instance->consumer,
5956 instance->consumer_h);
5957 break;
5958 }
c4a3e0a5 5959
51087a86
SS		 5960 kfree(instance->ctrl_info);
5961
105900d5
SS		 5962 if (instance->evt_detail)
5963 pci_free_consistent(pdev, sizeof(struct megasas_evt_detail),
5964 instance->evt_detail, instance->evt_detail_h);
229fe47c 5965
5966 if (instance->vf_affiliation)
5967 pci_free_consistent(pdev, (MAX_LOGICAL_DRIVES + 1) *
5968 sizeof(struct MR_LD_VF_AFFILIATION),
5969 instance->vf_affiliation,
5970 instance->vf_affiliation_h);
5971
5972 if (instance->vf_affiliation_111)
5973 pci_free_consistent(pdev,
5974 sizeof(struct MR_LD_VF_AFFILIATION_111),
5975 instance->vf_affiliation_111,
5976 instance->vf_affiliation_111_h);
5977
5978 if (instance->hb_host_mem)
5979 pci_free_consistent(pdev, sizeof(struct MR_CTRL_HB_HOST_MEM),
5980 instance->hb_host_mem,
5981 instance->hb_host_mem_h);
5982
fc62b3fc
SS		 5983 if (instance->crash_dump_buf)
5984 pci_free_consistent(pdev, CRASH_DMA_BUF_SIZE,
5985 instance->crash_dump_buf, instance->crash_dump_h);
5986
5765c5b8
SS		 5987 if (instance->system_info_buf)
5988 pci_free_consistent(pdev, sizeof(struct MR_DRV_SYSTEM_INFO),
5989 instance->system_info_buf, instance->system_info_h);
5990
c4a3e0a5
BS		 5991 scsi_host_put(host);
5992
c4a3e0a5 5993 pci_disable_device(pdev);
c4a3e0a5
BS		 5994}
5995
5996/**
5997 * megasas_shutdown - Shutdown entry point
5998 * @device: Generic device structure
5999 */
6000static void megasas_shutdown(struct pci_dev *pdev)
6001{
6002 struct megasas_instance *instance = pci_get_drvdata(pdev);
c8e858fe 6003
0c79e681 6004 instance->unload = 1;
c4a3e0a5 6005 megasas_flush_cache(instance);
530e6fc1 6006 megasas_shutdown_controller(instance, MR_DCMD_CTRL_SHUTDOWN);
d46a3ad6 6007 instance->instancet->disable_intr(instance);
d3557fc8
SS		 6008 megasas_destroy_irqs(instance);
6009
c8e858fe 6010 if (instance->msix_vectors)
46fd256e 6011 pci_disable_msix(instance->pdev);
c4a3e0a5
BS		 6012}
6013
6014/**
6015 * megasas_mgmt_open - char node "open" entry point
6016 */
6017static int megasas_mgmt_open(struct inode *inode, struct file *filep)
6018{
6019 /*
6020 * Allow only those users with admin rights
6021 */
6022 if (!capable(CAP_SYS_ADMIN))
6023 return -EACCES;
6024
6025 return 0;
6026}
6027
c4a3e0a5
BS		 6028/**
6029 * megasas_mgmt_fasync - Async notifier registration from applications
6030 *
6031 * This function adds the calling process to a driver global queue. When an
6032 * event occurs, SIGIO will be sent to all processes in this queue.
6033 */
6034static int megasas_mgmt_fasync(int fd, struct file *filep, int mode)
6035{
6036 int rc;
6037
0b950672 6038 mutex_lock(&megasas_async_queue_mutex);
c4a3e0a5
BS		 6039
6040 rc = fasync_helper(fd, filep, mode, &megasas_async_queue);
6041
0b950672 6042 mutex_unlock(&megasas_async_queue_mutex);
c4a3e0a5
BS		 6043
6044 if (rc >= 0) {
6045 /* For sanity check when we get ioctl */
6046 filep->private_data = filep;
6047 return 0;
6048 }
6049
6050 printk(KERN_DEBUG "megasas: fasync_helper failed [%d]\n", rc);
6051
6052 return rc;
6053}
6054
c3518837
YB		 6055/**
6056 * megasas_mgmt_poll - char node "poll" entry point
6057 * */
6058static unsigned int megasas_mgmt_poll(struct file *file, poll_table *wait)
6059{
6060 unsigned int mask;
6061 unsigned long flags;
da0dc9fb 6062
c3518837
YB		 6063 poll_wait(file, &megasas_poll_wait, wait);
6064 spin_lock_irqsave(&poll_aen_lock, flags);
6065 if (megasas_poll_wait_aen)
da0dc9fb 6066 mask = (POLLIN | POLLRDNORM);
c3518837
YB		 6067 else
6068 mask = 0;
51087a86 6069 megasas_poll_wait_aen = 0;
c3518837
YB		 6070 spin_unlock_irqrestore(&poll_aen_lock, flags);
6071 return mask;
6072}
6073
fc62b3fc
SS		 6074/*
6075 * megasas_set_crash_dump_params_ioctl:
6076 * Send CRASH_DUMP_MODE DCMD to all controllers
6077 * @cmd: MFI command frame
6078 */
6079
da0dc9fb 6080static int megasas_set_crash_dump_params_ioctl(struct megasas_cmd *cmd)
fc62b3fc
SS		 6081{
6082 struct megasas_instance *local_instance;
6083 int i, error = 0;
6084 int crash_support;
6085
6086 crash_support = cmd->frame->dcmd.mbox.w[0];
6087
6088 for (i = 0; i < megasas_mgmt_info.max_index; i++) {
6089 local_instance = megasas_mgmt_info.instance[i];
6090 if (local_instance && local_instance->crash_dump_drv_support) {
6091 if ((local_instance->adprecovery ==
6092 MEGASAS_HBA_OPERATIONAL) &&
6093 !megasas_set_crash_dump_params(local_instance,
6094 crash_support)) {
6095 local_instance->crash_dump_app_support =
6096 crash_support;
6097 dev_info(&local_instance->pdev->dev,
6098 "Application firmware crash "
6099 "dump mode set success\n");
6100 error = 0;
6101 } else {
6102 dev_info(&local_instance->pdev->dev,
6103 "Application firmware crash "
6104 "dump mode set failed\n");
6105 error = -1;
6106 }
6107 }
6108 }
6109 return error;
6110}
6111
c4a3e0a5
BS		 6112/**
6113 * megasas_mgmt_fw_ioctl - Issues management ioctls to FW
6114 * @instance: Adapter soft state
6115 * @argp: User's ioctl packet
6116 */
6117static int
6118megasas_mgmt_fw_ioctl(struct megasas_instance *instance,
6119 struct megasas_iocpacket __user * user_ioc,
6120 struct megasas_iocpacket *ioc)
6121{
6122 struct megasas_sge32 *kern_sge32;
6123 struct megasas_cmd *cmd;
6124 void *kbuff_arr[MAX_IOCTL_SGE];
6125 dma_addr_t buf_handle = 0;
6126 int error = 0, i;
6127 void *sense = NULL;
6128 dma_addr_t sense_handle;
7b2519af 6129 unsigned long *sense_ptr;
c4a3e0a5
BS		 6130
6131 memset(kbuff_arr, 0, sizeof(kbuff_arr));
6132
6133 if (ioc->sge_count > MAX_IOCTL_SGE) {
1be18254 6134 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SGE count [%d] > max limit [%d]\n",
c4a3e0a5
BS		 6135 ioc->sge_count, MAX_IOCTL_SGE);
6136 return -EINVAL;
6137 }
6138
6139 cmd = megasas_get_cmd(instance);
6140 if (!cmd) {
1be18254 6141 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to get a cmd packet\n");
c4a3e0a5
BS		 6142 return -ENOMEM;
6143 }
6144
6145 /*
6146 * User's IOCTL packet has 2 frames (maximum). Copy those two
6147 * frames into our cmd's frames. cmd->frame's context will get
6148 * overwritten when we copy from user's frames. So set that value
6149 * alone separately
6150 */
6151 memcpy(cmd->frame, ioc->frame.raw, 2 * MEGAMFI_FRAME_SIZE);
94cd65dd 6152 cmd->frame->hdr.context = cpu_to_le32(cmd->index);
c3518837 6153 cmd->frame->hdr.pad_0 = 0;
94cd65dd
SS		 6154 cmd->frame->hdr.flags &= cpu_to_le16(~(MFI_FRAME_IEEE |
6155 MFI_FRAME_SGL64 |
6156 MFI_FRAME_SENSE64));
c4a3e0a5 6157
fc62b3fc
SS		 6158 if (cmd->frame->dcmd.opcode == MR_DRIVER_SET_APP_CRASHDUMP_MODE) {
6159 error = megasas_set_crash_dump_params_ioctl(cmd);
6160 megasas_return_cmd(instance, cmd);
6161 return error;
6162 }
6163
c4a3e0a5
BS		 6164 /*
6165 * The management interface between applications and the fw uses
6166 * MFI frames. E.g, RAID configuration changes, LD property changes
6167 * etc are accomplishes through different kinds of MFI frames. The
6168 * driver needs to care only about substituting user buffers with
6169 * kernel buffers in SGLs. The location of SGL is embedded in the
6170 * struct iocpacket itself.
6171 */
6172 kern_sge32 = (struct megasas_sge32 *)
6173 ((unsigned long)cmd->frame + ioc->sgl_off);
6174
6175 /*
6176 * For each user buffer, create a mirror buffer and copy in
6177 */
6178 for (i = 0; i < ioc->sge_count; i++) {
98cb7e44
BM		 6179 if (!ioc->sgl[i].iov_len)
6180 continue;
6181
9f35fa8a 6182 kbuff_arr[i] = dma_alloc_coherent(&instance->pdev->dev,
c4a3e0a5 6183 ioc->sgl[i].iov_len,
9f35fa8a 6184 &buf_handle, GFP_KERNEL);
c4a3e0a5 6185 if (!kbuff_arr[i]) {
1be18254
BH		 6186 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to alloc "
6187 "kernel SGL buffer for IOCTL\n");
c4a3e0a5
BS		 6188 error = -ENOMEM;
6189 goto out;
6190 }
6191
6192 /*
6193 * We don't change the dma_coherent_mask, so
6194 * pci_alloc_consistent only returns 32bit addresses
6195 */
94cd65dd
SS		 6196 kern_sge32[i].phys_addr = cpu_to_le32(buf_handle);
6197 kern_sge32[i].length = cpu_to_le32(ioc->sgl[i].iov_len);
c4a3e0a5
BS		 6198
6199 /*
6200 * We created a kernel buffer corresponding to the
6201 * user buffer. Now copy in from the user buffer
6202 */
6203 if (copy_from_user(kbuff_arr[i], ioc->sgl[i].iov_base,
6204 (u32) (ioc->sgl[i].iov_len))) {
6205 error = -EFAULT;
6206 goto out;
6207 }
6208 }
6209
6210 if (ioc->sense_len) {
9f35fa8a
SP		 6211 sense = dma_alloc_coherent(&instance->pdev->dev, ioc->sense_len,
6212 &sense_handle, GFP_KERNEL);
c4a3e0a5
BS		 6213 if (!sense) {
6214 error = -ENOMEM;
6215 goto out;
6216 }
6217
6218 sense_ptr =
7b2519af 6219 (unsigned long *) ((unsigned long)cmd->frame + ioc->sense_off);
94cd65dd 6220 *sense_ptr = cpu_to_le32(sense_handle);
c4a3e0a5
BS		 6221 }
6222
6223 /*
6224 * Set the sync_cmd flag so that the ISR knows not to complete this
6225 * cmd to the SCSI mid-layer
6226 */
6227 cmd->sync_cmd = 1;
cfbe7554 6228 megasas_issue_blocked_cmd(instance, cmd, 0);
c4a3e0a5
BS		 6229 cmd->sync_cmd = 0;
6230
aa00832b
SS		 6231 if (instance->unload == 1) {
6232 dev_info(&instance->pdev->dev, "Driver unload is in progress "
6233 "don't submit data to application\n");
6234 goto out;
6235 }
c4a3e0a5
BS		 6236 /*
6237 * copy out the kernel buffers to user buffers
6238 */
6239 for (i = 0; i < ioc->sge_count; i++) {
6240 if (copy_to_user(ioc->sgl[i].iov_base, kbuff_arr[i],
6241 ioc->sgl[i].iov_len)) {
6242 error = -EFAULT;
6243 goto out;
6244 }
6245 }
6246
6247 /*
6248 * copy out the sense
6249 */
6250 if (ioc->sense_len) {
6251 /*
b70a41e0 6252 * sense_ptr points to the location that has the user
c4a3e0a5
BS		 6253 * sense buffer address
6254 */
7b2519af
YB		 6255 sense_ptr = (unsigned long *) ((unsigned long)ioc->frame.raw +
6256 ioc->sense_off);
c4a3e0a5 6257
b70a41e0 6258 if (copy_to_user((void __user *)((unsigned long)(*sense_ptr)),
6259 sense, ioc->sense_len)) {
1be18254 6260 dev_err(&instance->pdev->dev, "Failed to copy out to user "
b10c36a5 6261 "sense data\n");
c4a3e0a5
BS		 6262 error = -EFAULT;
6263 goto out;
6264 }
6265 }
6266
6267 /*
6268 * copy the status codes returned by the fw
6269 */
6270 if (copy_to_user(&user_ioc->frame.hdr.cmd_status,
6271 &cmd->frame->hdr.cmd_status, sizeof(u8))) {
1be18254 6272 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Error copying out cmd_status\n");
c4a3e0a5
BS		 6273 error = -EFAULT;
6274 }
6275
da0dc9fb 6276out:
c4a3e0a5 6277 if (sense) {
9f35fa8a 6278 dma_free_coherent(&instance->pdev->dev, ioc->sense_len,
c4a3e0a5
BS		 6279 sense, sense_handle);
6280 }
6281
7a6a731b
BM		 6282 for (i = 0; i < ioc->sge_count; i++) {
6283 if (kbuff_arr[i])
6284 dma_free_coherent(&instance->pdev->dev,
94cd65dd 6285 le32_to_cpu(kern_sge32[i].length),
7a6a731b 6286 kbuff_arr[i],
94cd65dd 6287 le32_to_cpu(kern_sge32[i].phys_addr));
90dc9d98 6288 kbuff_arr[i] = NULL;
c4a3e0a5
BS		 6289 }
6290
4026e9aa 6291 megasas_return_cmd(instance, cmd);
c4a3e0a5
BS		 6292 return error;
6293}
6294
c4a3e0a5
BS		 6295static int megasas_mgmt_ioctl_fw(struct file *file, unsigned long arg)
6296{
6297 struct megasas_iocpacket __user *user_ioc =
6298 (struct megasas_iocpacket __user *)arg;
6299 struct megasas_iocpacket *ioc;
6300 struct megasas_instance *instance;
6301 int error;
39a98554 6302 int i;
6303 unsigned long flags;
6304 u32 wait_time = MEGASAS_RESET_WAIT_TIME;
c4a3e0a5
BS		 6305
6306 ioc = kmalloc(sizeof(*ioc), GFP_KERNEL);
6307 if (!ioc)
6308 return -ENOMEM;
6309
6310 if (copy_from_user(ioc, user_ioc, sizeof(*ioc))) {
6311 error = -EFAULT;
6312 goto out_kfree_ioc;
6313 }
6314
6315 instance = megasas_lookup_instance(ioc->host_no);
6316 if (!instance) {
6317 error = -ENODEV;
6318 goto out_kfree_ioc;
6319 }
6320
229fe47c 6321 /* Adjust ioctl wait time for VF mode */
6322 if (instance->requestorId)
6323 wait_time = MEGASAS_ROUTINE_WAIT_TIME_VF;
6324
6325 /* Block ioctls in VF mode */
6326 if (instance->requestorId && !allow_vf_ioctls) {
6327 error = -ENODEV;
6328 goto out_kfree_ioc;
6329 }
6330
39a98554 6331 if (instance->adprecovery == MEGASAS_HW_CRITICAL_ERROR) {
1be18254 6332 dev_err(&instance->pdev->dev, "Controller in crit error\n");
0c79e681
YB		 6333 error = -ENODEV;
6334 goto out_kfree_ioc;
6335 }
6336
6337 if (instance->unload == 1) {
6338 error = -ENODEV;
6339 goto out_kfree_ioc;
6340 }
6341
c4a3e0a5
BS		 6342 if (down_interruptible(&instance->ioctl_sem)) {
6343 error = -ERESTARTSYS;
6344 goto out_kfree_ioc;
6345 }
39a98554 6346
6347 for (i = 0; i < wait_time; i++) {
6348
6349 spin_lock_irqsave(&instance->hba_lock, flags);
6350 if (instance->adprecovery == MEGASAS_HBA_OPERATIONAL) {
6351 spin_unlock_irqrestore(&instance->hba_lock, flags);
6352 break;
6353 }
6354 spin_unlock_irqrestore(&instance->hba_lock, flags);
6355
6356 if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) {
1be18254 6357 dev_notice(&instance->pdev->dev, "waiting"
39a98554 6358 "for controller reset to finish\n");
6359 }
6360
6361 msleep(1000);
6362 }
6363
6364 spin_lock_irqsave(&instance->hba_lock, flags);
6365 if (instance->adprecovery != MEGASAS_HBA_OPERATIONAL) {
6366 spin_unlock_irqrestore(&instance->hba_lock, flags);
6367
1be18254 6368 dev_err(&instance->pdev->dev, "timed out while"
39a98554 6369 "waiting for HBA to recover\n");
6370 error = -ENODEV;
c64e483e 6371 goto out_up;
39a98554 6372 }
6373 spin_unlock_irqrestore(&instance->hba_lock, flags);
6374
c4a3e0a5 6375 error = megasas_mgmt_fw_ioctl(instance, user_ioc, ioc);
da0dc9fb 6376out_up:
c4a3e0a5
BS		 6377 up(&instance->ioctl_sem);
6378
da0dc9fb 6379out_kfree_ioc:
c4a3e0a5
BS		 6380 kfree(ioc);
6381 return error;
6382}
6383
6384static int megasas_mgmt_ioctl_aen(struct file *file, unsigned long arg)
6385{
6386 struct megasas_instance *instance;
6387 struct megasas_aen aen;
6388 int error;
39a98554 6389 int i;
6390 unsigned long flags;
6391 u32 wait_time = MEGASAS_RESET_WAIT_TIME;
c4a3e0a5
BS		 6392
6393 if (file->private_data != file) {
6394 printk(KERN_DEBUG "megasas: fasync_helper was not "
6395 "called first\n");
6396 return -EINVAL;
6397 }
6398
6399 if (copy_from_user(&aen, (void __user *)arg, sizeof(aen)))
6400 return -EFAULT;
6401
6402 instance = megasas_lookup_instance(aen.host_no);
6403
6404 if (!instance)
6405 return -ENODEV;
6406
39a98554 6407 if (instance->adprecovery == MEGASAS_HW_CRITICAL_ERROR) {
6408 return -ENODEV;
0c79e681
YB		 6409 }
6410
6411 if (instance->unload == 1) {
6412 return -ENODEV;
6413 }
6414
39a98554 6415 for (i = 0; i < wait_time; i++) {
6416
6417 spin_lock_irqsave(&instance->hba_lock, flags);
6418 if (instance->adprecovery == MEGASAS_HBA_OPERATIONAL) {
6419 spin_unlock_irqrestore(&instance->hba_lock,
6420 flags);
6421 break;
6422 }
6423
6424 spin_unlock_irqrestore(&instance->hba_lock, flags);
6425
6426 if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) {
1be18254 6427 dev_notice(&instance->pdev->dev, "waiting for"
39a98554 6428 "controller reset to finish\n");
6429 }
6430
6431 msleep(1000);
6432 }
6433
6434 spin_lock_irqsave(&instance->hba_lock, flags);
6435 if (instance->adprecovery != MEGASAS_HBA_OPERATIONAL) {
6436 spin_unlock_irqrestore(&instance->hba_lock, flags);
1be18254
BH		 6437 dev_err(&instance->pdev->dev, "timed out while waiting"
6438 "for HBA to recover\n");
39a98554 6439 return -ENODEV;
6440 }
6441 spin_unlock_irqrestore(&instance->hba_lock, flags);
6442
e5a69e27 6443 mutex_lock(&instance->aen_mutex);
c4a3e0a5
BS		 6444 error = megasas_register_aen(instance, aen.seq_num,
6445 aen.class_locale_word);
e5a69e27 6446 mutex_unlock(&instance->aen_mutex);
c4a3e0a5
BS		 6447 return error;
6448}
6449
6450/**
6451 * megasas_mgmt_ioctl - char node ioctl entry point
6452 */
6453static long
6454megasas_mgmt_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
6455{
6456 switch (cmd) {
6457 case MEGASAS_IOC_FIRMWARE:
6458 return megasas_mgmt_ioctl_fw(file, arg);
6459
6460 case MEGASAS_IOC_GET_AEN:
6461 return megasas_mgmt_ioctl_aen(file, arg);
6462 }
6463
6464 return -ENOTTY;
6465}
6466
6467#ifdef CONFIG_COMPAT
6468static int megasas_mgmt_compat_ioctl_fw(struct file *file, unsigned long arg)
6469{
6470 struct compat_megasas_iocpacket __user *cioc =
6471 (struct compat_megasas_iocpacket __user *)arg;
6472 struct megasas_iocpacket __user *ioc =
6473 compat_alloc_user_space(sizeof(struct megasas_iocpacket));
6474 int i;
6475 int error = 0;
b3dc1a21 6476 compat_uptr_t ptr;
c4a3e0a5 6477
83aabc1b
JG		 6478 if (clear_user(ioc, sizeof(*ioc)))
6479 return -EFAULT;
c4a3e0a5
BS		 6480
6481 if (copy_in_user(&ioc->host_no, &cioc->host_no, sizeof(u16)) ||
6482 copy_in_user(&ioc->sgl_off, &cioc->sgl_off, sizeof(u32)) ||
6483 copy_in_user(&ioc->sense_off, &cioc->sense_off, sizeof(u32)) ||
6484 copy_in_user(&ioc->sense_len, &cioc->sense_len, sizeof(u32)) ||
6485 copy_in_user(ioc->frame.raw, cioc->frame.raw, 128) ||
6486 copy_in_user(&ioc->sge_count, &cioc->sge_count, sizeof(u32)))
6487 return -EFAULT;
6488
b3dc1a21
TH		 6489 /*
6490 * The sense_ptr is used in megasas_mgmt_fw_ioctl only when
6491 * sense_len is not null, so prepare the 64bit value under
6492 * the same condition.
6493 */
6494 if (ioc->sense_len) {
6495 void __user **sense_ioc_ptr =
6496 (void __user **)(ioc->frame.raw + ioc->sense_off);
6497 compat_uptr_t *sense_cioc_ptr =
6498 (compat_uptr_t *)(cioc->frame.raw + cioc->sense_off);
6499 if (get_user(ptr, sense_cioc_ptr) ||
6500 put_user(compat_ptr(ptr), sense_ioc_ptr))
6501 return -EFAULT;
6502 }
c4a3e0a5 6503
b3dc1a21 6504 for (i = 0; i < MAX_IOCTL_SGE; i++) {
c4a3e0a5
BS		 6505 if (get_user(ptr, &cioc->sgl[i].iov_base) ||
6506 put_user(compat_ptr(ptr), &ioc->sgl[i].iov_base) ||
6507 copy_in_user(&ioc->sgl[i].iov_len,
6508 &cioc->sgl[i].iov_len, sizeof(compat_size_t)))
6509 return -EFAULT;
6510 }
6511
6512 error = megasas_mgmt_ioctl_fw(file, (unsigned long)ioc);
6513
6514 if (copy_in_user(&cioc->frame.hdr.cmd_status,
6515 &ioc->frame.hdr.cmd_status, sizeof(u8))) {
6516 printk(KERN_DEBUG "megasas: error copy_in_user cmd_status\n");
6517 return -EFAULT;
6518 }
6519 return error;
6520}
6521
6522static long
6523megasas_mgmt_compat_ioctl(struct file *file, unsigned int cmd,
6524 unsigned long arg)
6525{
6526 switch (cmd) {
cb59aa6a
SP		 6527 case MEGASAS_IOC_FIRMWARE32:
6528 return megasas_mgmt_compat_ioctl_fw(file, arg);
c4a3e0a5
BS		 6529 case MEGASAS_IOC_GET_AEN:
6530 return megasas_mgmt_ioctl_aen(file, arg);
6531 }
6532
6533 return -ENOTTY;
6534}
6535#endif
6536
6537/*
6538 * File operations structure for management interface
6539 */
00977a59 6540static const struct file_operations megasas_mgmt_fops = {
c4a3e0a5
BS		 6541 .owner = THIS_MODULE,
6542 .open = megasas_mgmt_open,
c4a3e0a5
BS		 6543 .fasync = megasas_mgmt_fasync,
6544 .unlocked_ioctl = megasas_mgmt_ioctl,
c3518837 6545 .poll = megasas_mgmt_poll,
c4a3e0a5
BS		 6546#ifdef CONFIG_COMPAT
6547 .compat_ioctl = megasas_mgmt_compat_ioctl,
6548#endif
6038f373 6549 .llseek = noop_llseek,
c4a3e0a5
BS		 6550};
6551
6552/*
6553 * PCI hotplug support registration structure
6554 */
6555static struct pci_driver megasas_pci_driver = {
6556
6557 .name = "megaraid_sas",
6558 .id_table = megasas_pci_table,
6559 .probe = megasas_probe_one,
6f039790 6560 .remove = megasas_detach_one,
31ea7088 6561 .suspend = megasas_suspend,
6562 .resume = megasas_resume,
c4a3e0a5
BS		 6563 .shutdown = megasas_shutdown,
6564};
6565
6566/*
6567 * Sysfs driver attributes
6568 */
6569static ssize_t megasas_sysfs_show_version(struct device_driver *dd, char *buf)
6570{
6571 return snprintf(buf, strlen(MEGASAS_VERSION) + 2, "%s\n",
6572 MEGASAS_VERSION);
6573}
6574
6575static DRIVER_ATTR(version, S_IRUGO, megasas_sysfs_show_version, NULL);
6576
09fced19
SS		 6577static ssize_t
6578megasas_sysfs_show_release_date(struct device_driver *dd, char *buf)
6579{
6580 return snprintf(buf, strlen(MEGASAS_RELDATE) + 2, "%s\n",
6581 MEGASAS_RELDATE);
6582}
6583
6584static DRIVER_ATTR(release_date, S_IRUGO, megasas_sysfs_show_release_date, NULL);
6585
72c4fd36
YB		 6586static ssize_t
6587megasas_sysfs_show_support_poll_for_event(struct device_driver *dd, char *buf)
6588{
6589 return sprintf(buf, "%u\n", support_poll_for_event);
6590}
6591
6592static DRIVER_ATTR(support_poll_for_event, S_IRUGO,
6593 megasas_sysfs_show_support_poll_for_event, NULL);
6594
837f5fe8
YB		 6595 static ssize_t
6596megasas_sysfs_show_support_device_change(struct device_driver *dd, char *buf)
6597{
6598 return sprintf(buf, "%u\n", support_device_change);
6599}
6600
6601static DRIVER_ATTR(support_device_change, S_IRUGO,
6602 megasas_sysfs_show_support_device_change, NULL);
6603
658dcedb
SP		 6604static ssize_t
6605megasas_sysfs_show_dbg_lvl(struct device_driver *dd, char *buf)
6606{
ad84db2e 6607 return sprintf(buf, "%u\n", megasas_dbg_lvl);
658dcedb
SP		 6608}
6609
6610static ssize_t
6611megasas_sysfs_set_dbg_lvl(struct device_driver *dd, const char *buf, size_t count)
6612{
6613 int retval = count;
da0dc9fb
BH		 6614
6615 if (sscanf(buf, "%u", &megasas_dbg_lvl) < 1) {
658dcedb
SP		 6616 printk(KERN_ERR "megasas: could not set dbg_lvl\n");
6617 retval = -EINVAL;
6618 }
6619 return retval;
6620}
6621
66dca9b8 6622static DRIVER_ATTR(dbg_lvl, S_IRUGO|S_IWUSR, megasas_sysfs_show_dbg_lvl,
ad84db2e 6623 megasas_sysfs_set_dbg_lvl);
6624
7e8a75f4
YB		 6625static void
6626megasas_aen_polling(struct work_struct *work)
6627{
6628 struct megasas_aen_event *ev =
c1d390d8 6629 container_of(work, struct megasas_aen_event, hotplug_work.work);
7e8a75f4
YB		 6630 struct megasas_instance *instance = ev->instance;
6631 union megasas_evt_class_locale class_locale;
6632 struct Scsi_Host *host;
6633 struct scsi_device *sdev1;
6634 u16 pd_index = 0;
c9786842 6635 u16 ld_index = 0;
7e8a75f4 6636 int i, j, doscan = 0;
229fe47c 6637 u32 seq_num, wait_time = MEGASAS_RESET_WAIT_TIME;
7e8a75f4
YB		 6638 int error;
6639
6640 if (!instance) {
6641 printk(KERN_ERR "invalid instance!\n");
6642 kfree(ev);
6643 return;
6644 }
229fe47c 6645
6646 /* Adjust event workqueue thread wait time for VF mode */
6647 if (instance->requestorId)
6648 wait_time = MEGASAS_ROUTINE_WAIT_TIME_VF;
6649
6650 /* Don't run the event workqueue thread if OCR is running */
6651 for (i = 0; i < wait_time; i++) {
6652 if (instance->adprecovery == MEGASAS_HBA_OPERATIONAL)
6653 break;
6654 if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) {
1be18254 6655 dev_notice(&instance->pdev->dev, "%s waiting for "
229fe47c 6656 "controller reset to finish for scsi%d\n",
6657 __func__, instance->host->host_no);
6658 }
6659 msleep(1000);
6660 }
6661
7e8a75f4
YB		 6662 instance->ev = NULL;
6663 host = instance->host;
6664 if (instance->evt_detail) {
714f5177 6665 megasas_decode_evt(instance);
7e8a75f4 6666
94cd65dd 6667 switch (le32_to_cpu(instance->evt_detail->code)) {
7e8a75f4 6668 case MR_EVT_PD_INSERTED:
c9786842
YB		 6669 if (megasas_get_pd_list(instance) == 0) {
6670 for (i = 0; i < MEGASAS_MAX_PD_CHANNELS; i++) {
6671 for (j = 0;
6672 j < MEGASAS_MAX_DEV_PER_CHANNEL;
6673 j++) {
6674
6675 pd_index =
6676 (i * MEGASAS_MAX_DEV_PER_CHANNEL) + j;
6677
da0dc9fb 6678 sdev1 = scsi_device_lookup(host, i, j, 0);
c9786842
YB		 6679
6680 if (instance->pd_list[pd_index].driveState
6681 == MR_PD_STATE_SYSTEM) {
da0dc9fb 6682 if (!sdev1)
c9786842 6683 scsi_add_device(host, i, j, 0);
c9786842
YB		 6684
6685 if (sdev1)
6686 scsi_device_put(sdev1);
6687 }
6688 }
6689 }
6690 }
6691 doscan = 0;
6692 break;
6693
7e8a75f4 6694 case MR_EVT_PD_REMOVED:
c9786842 6695 if (megasas_get_pd_list(instance) == 0) {
c9786842
YB		 6696 for (i = 0; i < MEGASAS_MAX_PD_CHANNELS; i++) {
6697 for (j = 0;
6698 j < MEGASAS_MAX_DEV_PER_CHANNEL;
6699 j++) {
6700
6701 pd_index =
6702 (i * MEGASAS_MAX_DEV_PER_CHANNEL) + j;
6703
da0dc9fb 6704 sdev1 = scsi_device_lookup(host, i, j, 0);
c9786842
YB		 6705
6706 if (instance->pd_list[pd_index].driveState
6707 == MR_PD_STATE_SYSTEM) {
da0dc9fb 6708 if (sdev1)
c9786842 6709 scsi_device_put(sdev1);
c9786842
YB		 6710 } else {
6711 if (sdev1) {
6712 scsi_remove_device(sdev1);
6713 scsi_device_put(sdev1);
6714 }
6715 }
6716 }
6717 }
6718 }
6719 doscan = 0;
6720 break;
6721
6722 case MR_EVT_LD_OFFLINE:
4c598b23 6723 case MR_EVT_CFG_CLEARED:
c9786842 6724 case MR_EVT_LD_DELETED:
229fe47c 6725 if (!instance->requestorId ||
6726 (instance->requestorId &&
6727 megasas_get_ld_vf_affiliation(instance, 0))) {
6728 if (megasas_ld_list_query(instance,
6729 MR_LD_QUERY_TYPE_EXPOSED_TO_HOST))
6730 megasas_get_ld_list(instance);
6731 for (i = 0; i < MEGASAS_MAX_LD_CHANNELS; i++) {
6732 for (j = 0;
6733 j < MEGASAS_MAX_DEV_PER_CHANNEL;
6734 j++) {
6735
6736 ld_index =
6737 (i * MEGASAS_MAX_DEV_PER_CHANNEL) + j;
6738
6739 sdev1 = scsi_device_lookup(host, MEGASAS_MAX_PD_CHANNELS + i, j, 0);
6740
6741 if (instance->ld_ids[ld_index]
6742 != 0xff) {
6743 if (sdev1)
6744 scsi_device_put(sdev1);
6745 } else {
6746 if (sdev1) {
6747 scsi_remove_device(sdev1);
6748 scsi_device_put(sdev1);
6749 }
6750 }
c9786842
YB		 6751 }
6752 }
229fe47c 6753 doscan = 0;
c9786842 6754 }
c9786842
YB		 6755 break;
6756 case MR_EVT_LD_CREATED:
229fe47c 6757 if (!instance->requestorId ||
6758 (instance->requestorId &&
6759 megasas_get_ld_vf_affiliation(instance, 0))) {
6760 if (megasas_ld_list_query(instance,
6761 MR_LD_QUERY_TYPE_EXPOSED_TO_HOST))
6762 megasas_get_ld_list(instance);
6763 for (i = 0; i < MEGASAS_MAX_LD_CHANNELS; i++) {
6764 for (j = 0;
6765 j < MEGASAS_MAX_DEV_PER_CHANNEL;
6766 j++) {
6767 ld_index =
6768 (i * MEGASAS_MAX_DEV_PER_CHANNEL) + j;
6769
6770 sdev1 = scsi_device_lookup(host, MEGASAS_MAX_PD_CHANNELS + i, j, 0);
6771
6772 if (instance->ld_ids[ld_index]
6773 != 0xff) {
6774 if (!sdev1)
6775 scsi_add_device(host, MEGASAS_MAX_PD_CHANNELS + i, j, 0);
c9786842 6776 }
229fe47c 6777 if (sdev1)
6778 scsi_device_put(sdev1);
c9786842
YB		 6779 }
6780 }
229fe47c 6781 doscan = 0;
c9786842 6782 }
c9786842 6783 break;
7e8a75f4 6784 case MR_EVT_CTRL_HOST_BUS_SCAN_REQUESTED:
c9786842 6785 case MR_EVT_FOREIGN_CFG_IMPORTED:
9c915a8c 6786 case MR_EVT_LD_STATE_CHANGE:
7e8a75f4
YB		 6787 doscan = 1;
6788 break;
6789 default:
6790 doscan = 0;
6791 break;
6792 }
6793 } else {
1be18254 6794 dev_err(&instance->pdev->dev, "invalid evt_detail!\n");
7e8a75f4
YB		 6795 kfree(ev);
6796 return;
6797 }
6798
6799 if (doscan) {
1be18254 6800 dev_info(&instance->pdev->dev, "scanning for scsi%d...\n",
229fe47c 6801 instance->host->host_no);
58968fc8
HR		 6802 if (megasas_get_pd_list(instance) == 0) {
6803 for (i = 0; i < MEGASAS_MAX_PD_CHANNELS; i++) {
6804 for (j = 0; j < MEGASAS_MAX_DEV_PER_CHANNEL; j++) {
6805 pd_index = i*MEGASAS_MAX_DEV_PER_CHANNEL + j;
6806 sdev1 = scsi_device_lookup(host, i, j, 0);
6807 if (instance->pd_list[pd_index].driveState ==
6808 MR_PD_STATE_SYSTEM) {
6809 if (!sdev1) {
6810 scsi_add_device(host, i, j, 0);
6811 }
6812 if (sdev1)
6813 scsi_device_put(sdev1);
6814 } else {
6815 if (sdev1) {
6816 scsi_remove_device(sdev1);
6817 scsi_device_put(sdev1);
6818 }
7e8a75f4
YB		 6819 }
6820 }
6821 }
6822 }
c9786842 6823
229fe47c 6824 if (!instance->requestorId ||
6825 (instance->requestorId &&
6826 megasas_get_ld_vf_affiliation(instance, 0))) {
6827 if (megasas_ld_list_query(instance,
6828 MR_LD_QUERY_TYPE_EXPOSED_TO_HOST))
6829 megasas_get_ld_list(instance);
6830 for (i = 0; i < MEGASAS_MAX_LD_CHANNELS; i++) {
6831 for (j = 0; j < MEGASAS_MAX_DEV_PER_CHANNEL;
6832 j++) {
6833 ld_index =
6834 (i * MEGASAS_MAX_DEV_PER_CHANNEL) + j;
c9786842 6835
229fe47c 6836 sdev1 = scsi_device_lookup(host,
6837 MEGASAS_MAX_PD_CHANNELS + i, j, 0);
6838 if (instance->ld_ids[ld_index]
6839 != 0xff) {
6840 if (!sdev1)
6841 scsi_add_device(host, MEGASAS_MAX_PD_CHANNELS + i, j, 0);
6842 else
6843 scsi_device_put(sdev1);
c9786842 6844 } else {
229fe47c 6845 if (sdev1) {
6846 scsi_remove_device(sdev1);
6847 scsi_device_put(sdev1);
6848 }
c9786842
YB		 6849 }
6850 }
6851 }
6852 }
7e8a75f4
YB		 6853 }
6854
da0dc9fb 6855 if (instance->aen_cmd != NULL) {
7e8a75f4
YB		 6856 kfree(ev);
6857 return ;
6858 }
6859
94cd65dd 6860 seq_num = le32_to_cpu(instance->evt_detail->seq_num) + 1;
7e8a75f4
YB		 6861
6862 /* Register AEN with FW for latest sequence number plus 1 */
6863 class_locale.members.reserved = 0;
6864 class_locale.members.locale = MR_EVT_LOCALE_ALL;
6865 class_locale.members.class = MR_EVT_CLASS_DEBUG;
6866 mutex_lock(&instance->aen_mutex);
6867 error = megasas_register_aen(instance, seq_num,
6868 class_locale.word);
6869 mutex_unlock(&instance->aen_mutex);
6870
6871 if (error)
1be18254 6872 dev_err(&instance->pdev->dev, "register aen failed error %x\n", error);
7e8a75f4
YB		 6873
6874 kfree(ev);
6875}
6876
c4a3e0a5
BS		 6877/**
6878 * megasas_init - Driver load entry point
6879 */
6880static int __init megasas_init(void)
6881{
6882 int rval;
6883
6884 /*
6885 * Announce driver version and other information
6886 */
d98a6deb 6887 pr_info("megasas: %s\n", MEGASAS_VERSION);
c4a3e0a5 6888
bd8d6dd4
KD		 6889 spin_lock_init(&poll_aen_lock);
6890
72c4fd36 6891 support_poll_for_event = 2;
837f5fe8 6892 support_device_change = 1;
72c4fd36 6893
c4a3e0a5
BS		 6894 memset(&megasas_mgmt_info, 0, sizeof(megasas_mgmt_info));
6895
6896 /*
6897 * Register character device node
6898 */
6899 rval = register_chrdev(0, "megaraid_sas_ioctl", &megasas_mgmt_fops);
6900
6901 if (rval < 0) {
6902 printk(KERN_DEBUG "megasas: failed to open device node\n");
6903 return rval;
6904 }
6905
6906 megasas_mgmt_majorno = rval;
6907
6908 /*
6909 * Register ourselves as PCI hotplug module
6910 */
4041b9cd 6911 rval = pci_register_driver(&megasas_pci_driver);
c4a3e0a5
BS		 6912
6913 if (rval) {
6774def6 6914 printk(KERN_DEBUG "megasas: PCI hotplug registration failed \n");
83aabc1b
JG		 6915 goto err_pcidrv;
6916 }
6917
6918 rval = driver_create_file(&megasas_pci_driver.driver,
6919 &driver_attr_version);
6920 if (rval)
6921 goto err_dcf_attr_ver;
72c4fd36 6922
09fced19
SS		 6923 rval = driver_create_file(&megasas_pci_driver.driver,
6924 &driver_attr_release_date);
6925 if (rval)
6926 goto err_dcf_rel_date;
6927
72c4fd36
YB		 6928 rval = driver_create_file(&megasas_pci_driver.driver,
6929 &driver_attr_support_poll_for_event);
6930 if (rval)
6931 goto err_dcf_support_poll_for_event;
6932
83aabc1b
JG		 6933 rval = driver_create_file(&megasas_pci_driver.driver,
6934 &driver_attr_dbg_lvl);
6935 if (rval)
6936 goto err_dcf_dbg_lvl;
837f5fe8
YB		 6937 rval = driver_create_file(&megasas_pci_driver.driver,
6938 &driver_attr_support_device_change);
6939 if (rval)
6940 goto err_dcf_support_device_change;
6941
c4a3e0a5 6942 return rval;
ad84db2e 6943
837f5fe8 6944err_dcf_support_device_change:
ad84db2e 6945 driver_remove_file(&megasas_pci_driver.driver,
6946 &driver_attr_dbg_lvl);
83aabc1b 6947err_dcf_dbg_lvl:
72c4fd36
YB		 6948 driver_remove_file(&megasas_pci_driver.driver,
6949 &driver_attr_support_poll_for_event);
72c4fd36 6950err_dcf_support_poll_for_event:
09fced19
SS		 6951 driver_remove_file(&megasas_pci_driver.driver,
6952 &driver_attr_release_date);
6953err_dcf_rel_date:
83aabc1b
JG		 6954 driver_remove_file(&megasas_pci_driver.driver, &driver_attr_version);
6955err_dcf_attr_ver:
6956 pci_unregister_driver(&megasas_pci_driver);
6957err_pcidrv:
6958 unregister_chrdev(megasas_mgmt_majorno, "megaraid_sas_ioctl");
0d49016b 6959 return rval;
c4a3e0a5
BS		 6960}
6961
6962/**
6963 * megasas_exit - Driver unload entry point
6964 */
6965static void __exit megasas_exit(void)
6966{
658dcedb
SP		 6967 driver_remove_file(&megasas_pci_driver.driver,
6968 &driver_attr_dbg_lvl);
837f5fe8
YB		 6969 driver_remove_file(&megasas_pci_driver.driver,
6970 &driver_attr_support_poll_for_event);
6971 driver_remove_file(&megasas_pci_driver.driver,
6972 &driver_attr_support_device_change);
09fced19
SS		 6973 driver_remove_file(&megasas_pci_driver.driver,
6974 &driver_attr_release_date);
83aabc1b 6975 driver_remove_file(&megasas_pci_driver.driver, &driver_attr_version);
c4a3e0a5
BS		 6976
6977 pci_unregister_driver(&megasas_pci_driver);
6978 unregister_chrdev(megasas_mgmt_majorno, "megaraid_sas_ioctl");
6979}
6980
6981module_init(megasas_init);
6982module_exit(megasas_exit);
Linux kernel - Deliverables
This page took 1.777729 seconds and 5 git commands to generate.