Commit | Line | Data |
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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> |
7c0f6ba6 | 45 | #include <linux/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 | */ | |
64 | static unsigned int max_sectors; | |
65 | module_param_named(max_sectors, max_sectors, int, 0); | |
66 | MODULE_PARM_DESC(max_sectors, | |
67 | "Maximum number of sectors per IO command"); | |
68 | ||
80d9da98 | 69 | static int msix_disable; |
70 | module_param(msix_disable, int, S_IRUGO); | |
71 | MODULE_PARM_DESC(msix_disable, "Disable MSI-X interrupt handling. Default: 0"); | |
72 | ||
079eaddf | 73 | static unsigned int msix_vectors; |
74 | module_param(msix_vectors, int, S_IRUGO); | |
75 | MODULE_PARM_DESC(msix_vectors, "MSI-X max vector count. Default: Set by FW"); | |
76 | ||
229fe47c | 77 | static int allow_vf_ioctls; |
78 | module_param(allow_vf_ioctls, int, S_IRUGO); | |
79 | MODULE_PARM_DESC(allow_vf_ioctls, "Allow ioctls in SR-IOV VF mode. Default: 0"); | |
80 | ||
ae09a6c1 | 81 | static unsigned int throttlequeuedepth = MEGASAS_THROTTLE_QUEUE_DEPTH; |
c5daa6a9 | 82 | module_param(throttlequeuedepth, int, S_IRUGO); |
83 | MODULE_PARM_DESC(throttlequeuedepth, | |
84 | "Adapter queue depth when throttled due to I/O timeout. Default: 16"); | |
85 | ||
e3d178ca | 86 | unsigned int resetwaittime = MEGASAS_RESET_WAIT_TIME; |
c007b8b2 | 87 | module_param(resetwaittime, int, S_IRUGO); |
88 | MODULE_PARM_DESC(resetwaittime, "Wait time in seconds after I/O timeout " | |
89 | "before resetting adapter. Default: 180"); | |
90 | ||
ac95136a SS |
91 | int smp_affinity_enable = 1; |
92 | module_param(smp_affinity_enable, int, S_IRUGO); | |
93 | MODULE_PARM_DESC(smp_affinity_enable, "SMP affinity feature enable/disbale Default: enable(1)"); | |
94 | ||
179ac142 SS |
95 | int rdpq_enable = 1; |
96 | module_param(rdpq_enable, int, S_IRUGO); | |
97 | MODULE_PARM_DESC(rdpq_enable, " Allocate reply queue in chunks for large queue depth enable/disable Default: disable(0)"); | |
98 | ||
308ec459 SS |
99 | unsigned int dual_qdepth_disable; |
100 | module_param(dual_qdepth_disable, int, S_IRUGO); | |
101 | MODULE_PARM_DESC(dual_qdepth_disable, "Disable dual queue depth feature. Default: 0"); | |
102 | ||
e3d178ca SS |
103 | unsigned int scmd_timeout = MEGASAS_DEFAULT_CMD_TIMEOUT; |
104 | module_param(scmd_timeout, int, S_IRUGO); | |
105 | MODULE_PARM_DESC(scmd_timeout, "scsi command timeout (10-90s), default 90s. See megasas_reset_timer."); | |
106 | ||
c4a3e0a5 BS |
107 | MODULE_LICENSE("GPL"); |
108 | MODULE_VERSION(MEGASAS_VERSION); | |
43cd7fe4 SS |
109 | MODULE_AUTHOR("megaraidlinux.pdl@avagotech.com"); |
110 | MODULE_DESCRIPTION("Avago MegaRAID SAS Driver"); | |
c4a3e0a5 | 111 | |
058a8fac | 112 | int megasas_transition_to_ready(struct megasas_instance *instance, int ocr); |
39a98554 | 113 | static int megasas_get_pd_list(struct megasas_instance *instance); |
21c9e160 | 114 | static int megasas_ld_list_query(struct megasas_instance *instance, |
115 | u8 query_type); | |
39a98554 | 116 | static int megasas_issue_init_mfi(struct megasas_instance *instance); |
117 | static int megasas_register_aen(struct megasas_instance *instance, | |
118 | u32 seq_num, u32 class_locale_word); | |
2216c305 SS |
119 | static int |
120 | megasas_get_pd_info(struct megasas_instance *instance, u16 device_id); | |
c4a3e0a5 BS |
121 | /* |
122 | * PCI ID table for all supported controllers | |
123 | */ | |
124 | static struct pci_device_id megasas_pci_table[] = { | |
125 | ||
f3d7271c HK |
126 | {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1064R)}, |
127 | /* xscale IOP */ | |
128 | {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078R)}, | |
129 | /* ppc IOP */ | |
af7a5647 | 130 | {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078DE)}, |
131 | /* ppc IOP */ | |
6610a6b3 YB |
132 | {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078GEN2)}, |
133 | /* gen2*/ | |
134 | {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0079GEN2)}, | |
135 | /* gen2*/ | |
87911122 YB |
136 | {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0073SKINNY)}, |
137 | /* skinny*/ | |
138 | {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0071SKINNY)}, | |
139 | /* skinny*/ | |
f3d7271c HK |
140 | {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_VERDE_ZCR)}, |
141 | /* xscale IOP, vega */ | |
142 | {PCI_DEVICE(PCI_VENDOR_ID_DELL, PCI_DEVICE_ID_DELL_PERC5)}, | |
143 | /* xscale IOP */ | |
9c915a8c | 144 | {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FUSION)}, |
145 | /* Fusion */ | |
229fe47c | 146 | {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_PLASMA)}, |
147 | /* Plasma */ | |
36807e67 | 148 | {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_INVADER)}, |
149 | /* Invader */ | |
21d3c710 SS |
150 | {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FURY)}, |
151 | /* Fury */ | |
90c204bc | 152 | {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_INTRUDER)}, |
153 | /* Intruder */ | |
154 | {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_INTRUDER_24)}, | |
155 | /* Intruder 24 port*/ | |
7364d34b | 156 | {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_CUTLASS_52)}, |
157 | {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_CUTLASS_53)}, | |
f3d7271c | 158 | {} |
c4a3e0a5 BS |
159 | }; |
160 | ||
161 | MODULE_DEVICE_TABLE(pci, megasas_pci_table); | |
162 | ||
163 | static int megasas_mgmt_majorno; | |
229fe47c | 164 | struct megasas_mgmt_info megasas_mgmt_info; |
c4a3e0a5 | 165 | static struct fasync_struct *megasas_async_queue; |
0b950672 | 166 | static DEFINE_MUTEX(megasas_async_queue_mutex); |
c4a3e0a5 | 167 | |
c3518837 YB |
168 | static int megasas_poll_wait_aen; |
169 | static DECLARE_WAIT_QUEUE_HEAD(megasas_poll_wait); | |
72c4fd36 | 170 | static u32 support_poll_for_event; |
9c915a8c | 171 | u32 megasas_dbg_lvl; |
837f5fe8 | 172 | static u32 support_device_change; |
658dcedb | 173 | |
c3518837 YB |
174 | /* define lock for aen poll */ |
175 | spinlock_t poll_aen_lock; | |
176 | ||
9c915a8c | 177 | void |
7343eb65 | 178 | megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd, |
179 | u8 alt_status); | |
ebf054b0 | 180 | static u32 |
181 | megasas_read_fw_status_reg_gen2(struct megasas_register_set __iomem *regs); | |
182 | static int | |
183 | megasas_adp_reset_gen2(struct megasas_instance *instance, | |
184 | struct megasas_register_set __iomem *reg_set); | |
cd50ba8e | 185 | static irqreturn_t megasas_isr(int irq, void *devp); |
186 | static u32 | |
187 | megasas_init_adapter_mfi(struct megasas_instance *instance); | |
188 | u32 | |
189 | megasas_build_and_issue_cmd(struct megasas_instance *instance, | |
190 | struct scsi_cmnd *scmd); | |
191 | static void megasas_complete_cmd_dpc(unsigned long instance_addr); | |
9c915a8c | 192 | int |
229fe47c | 193 | wait_and_poll(struct megasas_instance *instance, struct megasas_cmd *cmd, |
194 | int seconds); | |
9c915a8c | 195 | void megasas_fusion_ocr_wq(struct work_struct *work); |
229fe47c | 196 | static int megasas_get_ld_vf_affiliation(struct megasas_instance *instance, |
197 | int initial); | |
cd50ba8e | 198 | |
6d40afbc | 199 | int |
cd50ba8e | 200 | megasas_issue_dcmd(struct megasas_instance *instance, struct megasas_cmd *cmd) |
201 | { | |
202 | instance->instancet->fire_cmd(instance, | |
203 | cmd->frame_phys_addr, 0, instance->reg_set); | |
6d40afbc | 204 | return 0; |
cd50ba8e | 205 | } |
7343eb65 | 206 | |
c4a3e0a5 BS |
207 | /** |
208 | * megasas_get_cmd - Get a command from the free pool | |
209 | * @instance: Adapter soft state | |
210 | * | |
211 | * Returns a free command from the pool | |
212 | */ | |
9c915a8c | 213 | struct megasas_cmd *megasas_get_cmd(struct megasas_instance |
c4a3e0a5 BS |
214 | *instance) |
215 | { | |
216 | unsigned long flags; | |
217 | struct megasas_cmd *cmd = NULL; | |
218 | ||
90dc9d98 | 219 | spin_lock_irqsave(&instance->mfi_pool_lock, flags); |
c4a3e0a5 BS |
220 | |
221 | if (!list_empty(&instance->cmd_pool)) { | |
222 | cmd = list_entry((&instance->cmd_pool)->next, | |
223 | struct megasas_cmd, list); | |
224 | list_del_init(&cmd->list); | |
225 | } else { | |
1be18254 | 226 | dev_err(&instance->pdev->dev, "Command pool empty!\n"); |
c4a3e0a5 BS |
227 | } |
228 | ||
90dc9d98 | 229 | spin_unlock_irqrestore(&instance->mfi_pool_lock, flags); |
c4a3e0a5 BS |
230 | return cmd; |
231 | } | |
232 | ||
233 | /** | |
4026e9aa | 234 | * megasas_return_cmd - Return a cmd to free command pool |
c4a3e0a5 BS |
235 | * @instance: Adapter soft state |
236 | * @cmd: Command packet to be returned to free command pool | |
237 | */ | |
9c915a8c | 238 | inline void |
4026e9aa | 239 | megasas_return_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd) |
c4a3e0a5 | 240 | { |
4026e9aa SS |
241 | unsigned long flags; |
242 | u32 blk_tags; | |
243 | struct megasas_cmd_fusion *cmd_fusion; | |
244 | struct fusion_context *fusion = instance->ctrl_context; | |
245 | ||
246 | /* This flag is used only for fusion adapter. | |
247 | * Wait for Interrupt for Polled mode DCMD | |
90dc9d98 | 248 | */ |
4026e9aa | 249 | if (cmd->flags & DRV_DCMD_POLLED_MODE) |
90dc9d98 | 250 | return; |
c4a3e0a5 | 251 | |
4026e9aa SS |
252 | spin_lock_irqsave(&instance->mfi_pool_lock, flags); |
253 | ||
254 | if (fusion) { | |
255 | blk_tags = instance->max_scsi_cmds + cmd->index; | |
256 | cmd_fusion = fusion->cmd_list[blk_tags]; | |
257 | megasas_return_cmd_fusion(instance, cmd_fusion); | |
258 | } | |
c4a3e0a5 | 259 | cmd->scmd = NULL; |
9c915a8c | 260 | cmd->frame_count = 0; |
4026e9aa SS |
261 | cmd->flags = 0; |
262 | if (!fusion && reset_devices) | |
e5f93a36 | 263 | cmd->frame->hdr.cmd = MFI_CMD_INVALID; |
90dc9d98 | 264 | list_add(&cmd->list, (&instance->cmd_pool)->next); |
90dc9d98 | 265 | |
90dc9d98 | 266 | spin_unlock_irqrestore(&instance->mfi_pool_lock, flags); |
c4a3e0a5 | 267 | |
4026e9aa | 268 | } |
1341c939 | 269 | |
714f5177 | 270 | static const char * |
271 | format_timestamp(uint32_t timestamp) | |
272 | { | |
273 | static char buffer[32]; | |
274 | ||
275 | if ((timestamp & 0xff000000) == 0xff000000) | |
276 | snprintf(buffer, sizeof(buffer), "boot + %us", timestamp & | |
277 | 0x00ffffff); | |
278 | else | |
279 | snprintf(buffer, sizeof(buffer), "%us", timestamp); | |
280 | return buffer; | |
281 | } | |
282 | ||
283 | static const char * | |
284 | format_class(int8_t class) | |
285 | { | |
286 | static char buffer[6]; | |
287 | ||
288 | switch (class) { | |
289 | case MFI_EVT_CLASS_DEBUG: | |
290 | return "debug"; | |
291 | case MFI_EVT_CLASS_PROGRESS: | |
292 | return "progress"; | |
293 | case MFI_EVT_CLASS_INFO: | |
294 | return "info"; | |
295 | case MFI_EVT_CLASS_WARNING: | |
296 | return "WARN"; | |
297 | case MFI_EVT_CLASS_CRITICAL: | |
298 | return "CRIT"; | |
299 | case MFI_EVT_CLASS_FATAL: | |
300 | return "FATAL"; | |
301 | case MFI_EVT_CLASS_DEAD: | |
302 | return "DEAD"; | |
303 | default: | |
304 | snprintf(buffer, sizeof(buffer), "%d", class); | |
305 | return buffer; | |
306 | } | |
307 | } | |
308 | ||
309 | /** | |
310 | * megasas_decode_evt: Decode FW AEN event and print critical event | |
311 | * for information. | |
312 | * @instance: Adapter soft state | |
313 | */ | |
314 | static void | |
315 | megasas_decode_evt(struct megasas_instance *instance) | |
316 | { | |
317 | struct megasas_evt_detail *evt_detail = instance->evt_detail; | |
318 | union megasas_evt_class_locale class_locale; | |
319 | class_locale.word = le32_to_cpu(evt_detail->cl.word); | |
320 | ||
321 | if (class_locale.members.class >= MFI_EVT_CLASS_CRITICAL) | |
322 | dev_info(&instance->pdev->dev, "%d (%s/0x%04x/%s) - %s\n", | |
323 | le32_to_cpu(evt_detail->seq_num), | |
324 | format_timestamp(le32_to_cpu(evt_detail->time_stamp)), | |
325 | (class_locale.members.locale), | |
326 | format_class(class_locale.members.class), | |
327 | evt_detail->description); | |
328 | } | |
329 | ||
1341c939 | 330 | /** |
0d49016b | 331 | * The following functions are defined for xscale |
1341c939 SP |
332 | * (deviceid : 1064R, PERC5) controllers |
333 | */ | |
334 | ||
c4a3e0a5 | 335 | /** |
1341c939 | 336 | * megasas_enable_intr_xscale - Enables interrupts |
c4a3e0a5 BS |
337 | * @regs: MFI register set |
338 | */ | |
339 | static inline void | |
d46a3ad6 | 340 | megasas_enable_intr_xscale(struct megasas_instance *instance) |
c4a3e0a5 | 341 | { |
d46a3ad6 | 342 | struct megasas_register_set __iomem *regs; |
da0dc9fb | 343 | |
d46a3ad6 | 344 | regs = instance->reg_set; |
39a98554 | 345 | writel(0, &(regs)->outbound_intr_mask); |
c4a3e0a5 BS |
346 | |
347 | /* Dummy readl to force pci flush */ | |
348 | readl(®s->outbound_intr_mask); | |
349 | } | |
350 | ||
b274cab7 SP |
351 | /** |
352 | * megasas_disable_intr_xscale -Disables interrupt | |
353 | * @regs: MFI register set | |
354 | */ | |
355 | static inline void | |
d46a3ad6 | 356 | megasas_disable_intr_xscale(struct megasas_instance *instance) |
b274cab7 | 357 | { |
d46a3ad6 | 358 | struct megasas_register_set __iomem *regs; |
b274cab7 | 359 | u32 mask = 0x1f; |
da0dc9fb | 360 | |
d46a3ad6 | 361 | regs = instance->reg_set; |
b274cab7 SP |
362 | writel(mask, ®s->outbound_intr_mask); |
363 | /* Dummy readl to force pci flush */ | |
364 | readl(®s->outbound_intr_mask); | |
365 | } | |
366 | ||
1341c939 SP |
367 | /** |
368 | * megasas_read_fw_status_reg_xscale - returns the current FW status value | |
369 | * @regs: MFI register set | |
370 | */ | |
371 | static u32 | |
372 | megasas_read_fw_status_reg_xscale(struct megasas_register_set __iomem * regs) | |
373 | { | |
374 | return readl(&(regs)->outbound_msg_0); | |
375 | } | |
376 | /** | |
377 | * megasas_clear_interrupt_xscale - Check & clear interrupt | |
378 | * @regs: MFI register set | |
379 | */ | |
0d49016b | 380 | static int |
1341c939 SP |
381 | megasas_clear_intr_xscale(struct megasas_register_set __iomem * regs) |
382 | { | |
383 | u32 status; | |
39a98554 | 384 | u32 mfiStatus = 0; |
da0dc9fb | 385 | |
1341c939 SP |
386 | /* |
387 | * Check if it is our interrupt | |
388 | */ | |
389 | status = readl(®s->outbound_intr_status); | |
390 | ||
39a98554 | 391 | if (status & MFI_OB_INTR_STATUS_MASK) |
392 | mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE; | |
393 | if (status & MFI_XSCALE_OMR0_CHANGE_INTERRUPT) | |
394 | mfiStatus |= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE; | |
1341c939 SP |
395 | |
396 | /* | |
397 | * Clear the interrupt by writing back the same value | |
398 | */ | |
39a98554 | 399 | if (mfiStatus) |
400 | writel(status, ®s->outbound_intr_status); | |
1341c939 | 401 | |
06f579de YB |
402 | /* Dummy readl to force pci flush */ |
403 | readl(®s->outbound_intr_status); | |
404 | ||
39a98554 | 405 | return mfiStatus; |
1341c939 SP |
406 | } |
407 | ||
408 | /** | |
409 | * megasas_fire_cmd_xscale - Sends command to the FW | |
410 | * @frame_phys_addr : Physical address of cmd | |
411 | * @frame_count : Number of frames for the command | |
412 | * @regs : MFI register set | |
413 | */ | |
0d49016b | 414 | static inline void |
0c79e681 YB |
415 | megasas_fire_cmd_xscale(struct megasas_instance *instance, |
416 | dma_addr_t frame_phys_addr, | |
417 | u32 frame_count, | |
418 | struct megasas_register_set __iomem *regs) | |
1341c939 | 419 | { |
39a98554 | 420 | unsigned long flags; |
da0dc9fb | 421 | |
39a98554 | 422 | spin_lock_irqsave(&instance->hba_lock, flags); |
1341c939 SP |
423 | writel((frame_phys_addr >> 3)|(frame_count), |
424 | &(regs)->inbound_queue_port); | |
39a98554 | 425 | spin_unlock_irqrestore(&instance->hba_lock, flags); |
426 | } | |
427 | ||
428 | /** | |
429 | * megasas_adp_reset_xscale - For controller reset | |
430 | * @regs: MFI register set | |
431 | */ | |
432 | static int | |
433 | megasas_adp_reset_xscale(struct megasas_instance *instance, | |
434 | struct megasas_register_set __iomem *regs) | |
435 | { | |
436 | u32 i; | |
437 | u32 pcidata; | |
da0dc9fb | 438 | |
39a98554 | 439 | writel(MFI_ADP_RESET, ®s->inbound_doorbell); |
440 | ||
441 | for (i = 0; i < 3; i++) | |
442 | msleep(1000); /* sleep for 3 secs */ | |
443 | pcidata = 0; | |
444 | pci_read_config_dword(instance->pdev, MFI_1068_PCSR_OFFSET, &pcidata); | |
1be18254 | 445 | dev_notice(&instance->pdev->dev, "pcidata = %x\n", pcidata); |
39a98554 | 446 | if (pcidata & 0x2) { |
1be18254 | 447 | dev_notice(&instance->pdev->dev, "mfi 1068 offset read=%x\n", pcidata); |
39a98554 | 448 | pcidata &= ~0x2; |
449 | pci_write_config_dword(instance->pdev, | |
450 | MFI_1068_PCSR_OFFSET, pcidata); | |
451 | ||
452 | for (i = 0; i < 2; i++) | |
453 | msleep(1000); /* need to wait 2 secs again */ | |
454 | ||
455 | pcidata = 0; | |
456 | pci_read_config_dword(instance->pdev, | |
457 | MFI_1068_FW_HANDSHAKE_OFFSET, &pcidata); | |
1be18254 | 458 | dev_notice(&instance->pdev->dev, "1068 offset handshake read=%x\n", pcidata); |
39a98554 | 459 | if ((pcidata & 0xffff0000) == MFI_1068_FW_READY) { |
1be18254 | 460 | dev_notice(&instance->pdev->dev, "1068 offset pcidt=%x\n", pcidata); |
39a98554 | 461 | pcidata = 0; |
462 | pci_write_config_dword(instance->pdev, | |
463 | MFI_1068_FW_HANDSHAKE_OFFSET, pcidata); | |
464 | } | |
465 | } | |
466 | return 0; | |
467 | } | |
468 | ||
469 | /** | |
470 | * megasas_check_reset_xscale - For controller reset check | |
471 | * @regs: MFI register set | |
472 | */ | |
473 | static int | |
474 | megasas_check_reset_xscale(struct megasas_instance *instance, | |
475 | struct megasas_register_set __iomem *regs) | |
476 | { | |
8a01a41d | 477 | if ((atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) && |
94cd65dd SS |
478 | (le32_to_cpu(*instance->consumer) == |
479 | MEGASAS_ADPRESET_INPROG_SIGN)) | |
39a98554 | 480 | return 1; |
39a98554 | 481 | return 0; |
1341c939 SP |
482 | } |
483 | ||
484 | static struct megasas_instance_template megasas_instance_template_xscale = { | |
485 | ||
486 | .fire_cmd = megasas_fire_cmd_xscale, | |
487 | .enable_intr = megasas_enable_intr_xscale, | |
b274cab7 | 488 | .disable_intr = megasas_disable_intr_xscale, |
1341c939 SP |
489 | .clear_intr = megasas_clear_intr_xscale, |
490 | .read_fw_status_reg = megasas_read_fw_status_reg_xscale, | |
39a98554 | 491 | .adp_reset = megasas_adp_reset_xscale, |
492 | .check_reset = megasas_check_reset_xscale, | |
cd50ba8e | 493 | .service_isr = megasas_isr, |
494 | .tasklet = megasas_complete_cmd_dpc, | |
495 | .init_adapter = megasas_init_adapter_mfi, | |
496 | .build_and_issue_cmd = megasas_build_and_issue_cmd, | |
497 | .issue_dcmd = megasas_issue_dcmd, | |
1341c939 SP |
498 | }; |
499 | ||
500 | /** | |
0d49016b | 501 | * This is the end of set of functions & definitions specific |
1341c939 SP |
502 | * to xscale (deviceid : 1064R, PERC5) controllers |
503 | */ | |
504 | ||
f9876f0b | 505 | /** |
0d49016b | 506 | * The following functions are defined for ppc (deviceid : 0x60) |
da0dc9fb | 507 | * controllers |
f9876f0b SP |
508 | */ |
509 | ||
510 | /** | |
511 | * megasas_enable_intr_ppc - Enables interrupts | |
512 | * @regs: MFI register set | |
513 | */ | |
514 | static inline void | |
d46a3ad6 | 515 | megasas_enable_intr_ppc(struct megasas_instance *instance) |
f9876f0b | 516 | { |
d46a3ad6 | 517 | struct megasas_register_set __iomem *regs; |
da0dc9fb | 518 | |
d46a3ad6 | 519 | regs = instance->reg_set; |
f9876f0b | 520 | writel(0xFFFFFFFF, &(regs)->outbound_doorbell_clear); |
0d49016b | 521 | |
39a98554 | 522 | writel(~0x80000000, &(regs)->outbound_intr_mask); |
f9876f0b SP |
523 | |
524 | /* Dummy readl to force pci flush */ | |
525 | readl(®s->outbound_intr_mask); | |
526 | } | |
527 | ||
b274cab7 SP |
528 | /** |
529 | * megasas_disable_intr_ppc - Disable interrupt | |
530 | * @regs: MFI register set | |
531 | */ | |
532 | static inline void | |
d46a3ad6 | 533 | megasas_disable_intr_ppc(struct megasas_instance *instance) |
b274cab7 | 534 | { |
d46a3ad6 | 535 | struct megasas_register_set __iomem *regs; |
b274cab7 | 536 | u32 mask = 0xFFFFFFFF; |
da0dc9fb | 537 | |
d46a3ad6 | 538 | regs = instance->reg_set; |
b274cab7 SP |
539 | writel(mask, ®s->outbound_intr_mask); |
540 | /* Dummy readl to force pci flush */ | |
541 | readl(®s->outbound_intr_mask); | |
542 | } | |
543 | ||
f9876f0b SP |
544 | /** |
545 | * megasas_read_fw_status_reg_ppc - returns the current FW status value | |
546 | * @regs: MFI register set | |
547 | */ | |
548 | static u32 | |
549 | megasas_read_fw_status_reg_ppc(struct megasas_register_set __iomem * regs) | |
550 | { | |
551 | return readl(&(regs)->outbound_scratch_pad); | |
552 | } | |
553 | ||
554 | /** | |
555 | * megasas_clear_interrupt_ppc - Check & clear interrupt | |
556 | * @regs: MFI register set | |
557 | */ | |
0d49016b | 558 | static int |
f9876f0b SP |
559 | megasas_clear_intr_ppc(struct megasas_register_set __iomem * regs) |
560 | { | |
3cc6851f | 561 | u32 status, mfiStatus = 0; |
562 | ||
f9876f0b SP |
563 | /* |
564 | * Check if it is our interrupt | |
565 | */ | |
566 | status = readl(®s->outbound_intr_status); | |
567 | ||
3cc6851f | 568 | if (status & MFI_REPLY_1078_MESSAGE_INTERRUPT) |
569 | mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE; | |
570 | ||
571 | if (status & MFI_G2_OUTBOUND_DOORBELL_CHANGE_INTERRUPT) | |
572 | mfiStatus |= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE; | |
f9876f0b SP |
573 | |
574 | /* | |
575 | * Clear the interrupt by writing back the same value | |
576 | */ | |
577 | writel(status, ®s->outbound_doorbell_clear); | |
578 | ||
06f579de YB |
579 | /* Dummy readl to force pci flush */ |
580 | readl(®s->outbound_doorbell_clear); | |
581 | ||
3cc6851f | 582 | return mfiStatus; |
f9876f0b | 583 | } |
3cc6851f | 584 | |
f9876f0b SP |
585 | /** |
586 | * megasas_fire_cmd_ppc - Sends command to the FW | |
587 | * @frame_phys_addr : Physical address of cmd | |
588 | * @frame_count : Number of frames for the command | |
589 | * @regs : MFI register set | |
590 | */ | |
0d49016b | 591 | static inline void |
0c79e681 YB |
592 | megasas_fire_cmd_ppc(struct megasas_instance *instance, |
593 | dma_addr_t frame_phys_addr, | |
594 | u32 frame_count, | |
595 | struct megasas_register_set __iomem *regs) | |
f9876f0b | 596 | { |
39a98554 | 597 | unsigned long flags; |
da0dc9fb | 598 | |
39a98554 | 599 | spin_lock_irqsave(&instance->hba_lock, flags); |
0d49016b | 600 | writel((frame_phys_addr | (frame_count<<1))|1, |
f9876f0b | 601 | &(regs)->inbound_queue_port); |
39a98554 | 602 | spin_unlock_irqrestore(&instance->hba_lock, flags); |
f9876f0b SP |
603 | } |
604 | ||
39a98554 | 605 | /** |
606 | * megasas_check_reset_ppc - For controller reset check | |
607 | * @regs: MFI register set | |
608 | */ | |
609 | static int | |
610 | megasas_check_reset_ppc(struct megasas_instance *instance, | |
611 | struct megasas_register_set __iomem *regs) | |
612 | { | |
8a01a41d | 613 | if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) |
3cc6851f | 614 | return 1; |
615 | ||
39a98554 | 616 | return 0; |
617 | } | |
3cc6851f | 618 | |
f9876f0b | 619 | static struct megasas_instance_template megasas_instance_template_ppc = { |
0d49016b | 620 | |
f9876f0b SP |
621 | .fire_cmd = megasas_fire_cmd_ppc, |
622 | .enable_intr = megasas_enable_intr_ppc, | |
b274cab7 | 623 | .disable_intr = megasas_disable_intr_ppc, |
f9876f0b SP |
624 | .clear_intr = megasas_clear_intr_ppc, |
625 | .read_fw_status_reg = megasas_read_fw_status_reg_ppc, | |
3cc6851f | 626 | .adp_reset = megasas_adp_reset_xscale, |
39a98554 | 627 | .check_reset = megasas_check_reset_ppc, |
cd50ba8e | 628 | .service_isr = megasas_isr, |
629 | .tasklet = megasas_complete_cmd_dpc, | |
630 | .init_adapter = megasas_init_adapter_mfi, | |
631 | .build_and_issue_cmd = megasas_build_and_issue_cmd, | |
632 | .issue_dcmd = megasas_issue_dcmd, | |
f9876f0b SP |
633 | }; |
634 | ||
87911122 YB |
635 | /** |
636 | * megasas_enable_intr_skinny - Enables interrupts | |
637 | * @regs: MFI register set | |
638 | */ | |
639 | static inline void | |
d46a3ad6 | 640 | megasas_enable_intr_skinny(struct megasas_instance *instance) |
87911122 | 641 | { |
d46a3ad6 | 642 | struct megasas_register_set __iomem *regs; |
da0dc9fb | 643 | |
d46a3ad6 | 644 | regs = instance->reg_set; |
87911122 YB |
645 | writel(0xFFFFFFFF, &(regs)->outbound_intr_mask); |
646 | ||
647 | writel(~MFI_SKINNY_ENABLE_INTERRUPT_MASK, &(regs)->outbound_intr_mask); | |
648 | ||
649 | /* Dummy readl to force pci flush */ | |
650 | readl(®s->outbound_intr_mask); | |
651 | } | |
652 | ||
653 | /** | |
654 | * megasas_disable_intr_skinny - Disables interrupt | |
655 | * @regs: MFI register set | |
656 | */ | |
657 | static inline void | |
d46a3ad6 | 658 | megasas_disable_intr_skinny(struct megasas_instance *instance) |
87911122 | 659 | { |
d46a3ad6 | 660 | struct megasas_register_set __iomem *regs; |
87911122 | 661 | u32 mask = 0xFFFFFFFF; |
da0dc9fb | 662 | |
d46a3ad6 | 663 | regs = instance->reg_set; |
87911122 YB |
664 | writel(mask, ®s->outbound_intr_mask); |
665 | /* Dummy readl to force pci flush */ | |
666 | readl(®s->outbound_intr_mask); | |
667 | } | |
668 | ||
669 | /** | |
670 | * megasas_read_fw_status_reg_skinny - returns the current FW status value | |
671 | * @regs: MFI register set | |
672 | */ | |
673 | static u32 | |
674 | megasas_read_fw_status_reg_skinny(struct megasas_register_set __iomem *regs) | |
675 | { | |
676 | return readl(&(regs)->outbound_scratch_pad); | |
677 | } | |
678 | ||
679 | /** | |
680 | * megasas_clear_interrupt_skinny - Check & clear interrupt | |
681 | * @regs: MFI register set | |
682 | */ | |
683 | static int | |
684 | megasas_clear_intr_skinny(struct megasas_register_set __iomem *regs) | |
685 | { | |
686 | u32 status; | |
ebf054b0 | 687 | u32 mfiStatus = 0; |
688 | ||
87911122 YB |
689 | /* |
690 | * Check if it is our interrupt | |
691 | */ | |
692 | status = readl(®s->outbound_intr_status); | |
693 | ||
694 | if (!(status & MFI_SKINNY_ENABLE_INTERRUPT_MASK)) { | |
39a98554 | 695 | return 0; |
87911122 YB |
696 | } |
697 | ||
ebf054b0 | 698 | /* |
699 | * Check if it is our interrupt | |
700 | */ | |
a3fda7dd | 701 | if ((megasas_read_fw_status_reg_skinny(regs) & MFI_STATE_MASK) == |
ebf054b0 | 702 | MFI_STATE_FAULT) { |
703 | mfiStatus = MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE; | |
704 | } else | |
705 | mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE; | |
706 | ||
87911122 YB |
707 | /* |
708 | * Clear the interrupt by writing back the same value | |
709 | */ | |
710 | writel(status, ®s->outbound_intr_status); | |
711 | ||
712 | /* | |
da0dc9fb BH |
713 | * dummy read to flush PCI |
714 | */ | |
87911122 YB |
715 | readl(®s->outbound_intr_status); |
716 | ||
ebf054b0 | 717 | return mfiStatus; |
87911122 YB |
718 | } |
719 | ||
720 | /** | |
721 | * megasas_fire_cmd_skinny - Sends command to the FW | |
722 | * @frame_phys_addr : Physical address of cmd | |
723 | * @frame_count : Number of frames for the command | |
724 | * @regs : MFI register set | |
725 | */ | |
726 | static inline void | |
0c79e681 YB |
727 | megasas_fire_cmd_skinny(struct megasas_instance *instance, |
728 | dma_addr_t frame_phys_addr, | |
729 | u32 frame_count, | |
87911122 YB |
730 | struct megasas_register_set __iomem *regs) |
731 | { | |
0c79e681 | 732 | unsigned long flags; |
da0dc9fb | 733 | |
39a98554 | 734 | spin_lock_irqsave(&instance->hba_lock, flags); |
94cd65dd SS |
735 | writel(upper_32_bits(frame_phys_addr), |
736 | &(regs)->inbound_high_queue_port); | |
737 | writel((lower_32_bits(frame_phys_addr) | (frame_count<<1))|1, | |
738 | &(regs)->inbound_low_queue_port); | |
b99dbe56 | 739 | mmiowb(); |
39a98554 | 740 | spin_unlock_irqrestore(&instance->hba_lock, flags); |
741 | } | |
742 | ||
39a98554 | 743 | /** |
744 | * megasas_check_reset_skinny - For controller reset check | |
745 | * @regs: MFI register set | |
746 | */ | |
747 | static int | |
748 | megasas_check_reset_skinny(struct megasas_instance *instance, | |
749 | struct megasas_register_set __iomem *regs) | |
750 | { | |
8a01a41d | 751 | if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) |
3cc6851f | 752 | return 1; |
753 | ||
39a98554 | 754 | return 0; |
87911122 YB |
755 | } |
756 | ||
757 | static struct megasas_instance_template megasas_instance_template_skinny = { | |
758 | ||
759 | .fire_cmd = megasas_fire_cmd_skinny, | |
760 | .enable_intr = megasas_enable_intr_skinny, | |
761 | .disable_intr = megasas_disable_intr_skinny, | |
762 | .clear_intr = megasas_clear_intr_skinny, | |
763 | .read_fw_status_reg = megasas_read_fw_status_reg_skinny, | |
ebf054b0 | 764 | .adp_reset = megasas_adp_reset_gen2, |
39a98554 | 765 | .check_reset = megasas_check_reset_skinny, |
cd50ba8e | 766 | .service_isr = megasas_isr, |
767 | .tasklet = megasas_complete_cmd_dpc, | |
768 | .init_adapter = megasas_init_adapter_mfi, | |
769 | .build_and_issue_cmd = megasas_build_and_issue_cmd, | |
770 | .issue_dcmd = megasas_issue_dcmd, | |
87911122 YB |
771 | }; |
772 | ||
773 | ||
6610a6b3 YB |
774 | /** |
775 | * The following functions are defined for gen2 (deviceid : 0x78 0x79) | |
776 | * controllers | |
777 | */ | |
778 | ||
779 | /** | |
780 | * megasas_enable_intr_gen2 - Enables interrupts | |
781 | * @regs: MFI register set | |
782 | */ | |
783 | static inline void | |
d46a3ad6 | 784 | megasas_enable_intr_gen2(struct megasas_instance *instance) |
6610a6b3 | 785 | { |
d46a3ad6 | 786 | struct megasas_register_set __iomem *regs; |
da0dc9fb | 787 | |
d46a3ad6 | 788 | regs = instance->reg_set; |
6610a6b3 YB |
789 | writel(0xFFFFFFFF, &(regs)->outbound_doorbell_clear); |
790 | ||
791 | /* write ~0x00000005 (4 & 1) to the intr mask*/ | |
792 | writel(~MFI_GEN2_ENABLE_INTERRUPT_MASK, &(regs)->outbound_intr_mask); | |
793 | ||
794 | /* Dummy readl to force pci flush */ | |
795 | readl(®s->outbound_intr_mask); | |
796 | } | |
797 | ||
798 | /** | |
799 | * megasas_disable_intr_gen2 - Disables interrupt | |
800 | * @regs: MFI register set | |
801 | */ | |
802 | static inline void | |
d46a3ad6 | 803 | megasas_disable_intr_gen2(struct megasas_instance *instance) |
6610a6b3 | 804 | { |
d46a3ad6 | 805 | struct megasas_register_set __iomem *regs; |
6610a6b3 | 806 | u32 mask = 0xFFFFFFFF; |
da0dc9fb | 807 | |
d46a3ad6 | 808 | regs = instance->reg_set; |
6610a6b3 YB |
809 | writel(mask, ®s->outbound_intr_mask); |
810 | /* Dummy readl to force pci flush */ | |
811 | readl(®s->outbound_intr_mask); | |
812 | } | |
813 | ||
814 | /** | |
815 | * megasas_read_fw_status_reg_gen2 - returns the current FW status value | |
816 | * @regs: MFI register set | |
817 | */ | |
818 | static u32 | |
819 | megasas_read_fw_status_reg_gen2(struct megasas_register_set __iomem *regs) | |
820 | { | |
821 | return readl(&(regs)->outbound_scratch_pad); | |
822 | } | |
823 | ||
824 | /** | |
825 | * megasas_clear_interrupt_gen2 - Check & clear interrupt | |
826 | * @regs: MFI register set | |
827 | */ | |
828 | static int | |
829 | megasas_clear_intr_gen2(struct megasas_register_set __iomem *regs) | |
830 | { | |
831 | u32 status; | |
39a98554 | 832 | u32 mfiStatus = 0; |
da0dc9fb | 833 | |
6610a6b3 YB |
834 | /* |
835 | * Check if it is our interrupt | |
836 | */ | |
837 | status = readl(®s->outbound_intr_status); | |
838 | ||
b5bccadd | 839 | if (status & MFI_INTR_FLAG_REPLY_MESSAGE) { |
39a98554 | 840 | mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE; |
841 | } | |
842 | if (status & MFI_G2_OUTBOUND_DOORBELL_CHANGE_INTERRUPT) { | |
843 | mfiStatus |= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE; | |
844 | } | |
6610a6b3 YB |
845 | |
846 | /* | |
847 | * Clear the interrupt by writing back the same value | |
848 | */ | |
39a98554 | 849 | if (mfiStatus) |
850 | writel(status, ®s->outbound_doorbell_clear); | |
6610a6b3 YB |
851 | |
852 | /* Dummy readl to force pci flush */ | |
853 | readl(®s->outbound_intr_status); | |
854 | ||
39a98554 | 855 | return mfiStatus; |
6610a6b3 YB |
856 | } |
857 | /** | |
858 | * megasas_fire_cmd_gen2 - Sends command to the FW | |
859 | * @frame_phys_addr : Physical address of cmd | |
860 | * @frame_count : Number of frames for the command | |
861 | * @regs : MFI register set | |
862 | */ | |
863 | static inline void | |
0c79e681 YB |
864 | megasas_fire_cmd_gen2(struct megasas_instance *instance, |
865 | dma_addr_t frame_phys_addr, | |
866 | u32 frame_count, | |
6610a6b3 YB |
867 | struct megasas_register_set __iomem *regs) |
868 | { | |
39a98554 | 869 | unsigned long flags; |
da0dc9fb | 870 | |
39a98554 | 871 | spin_lock_irqsave(&instance->hba_lock, flags); |
6610a6b3 YB |
872 | writel((frame_phys_addr | (frame_count<<1))|1, |
873 | &(regs)->inbound_queue_port); | |
39a98554 | 874 | spin_unlock_irqrestore(&instance->hba_lock, flags); |
875 | } | |
876 | ||
877 | /** | |
878 | * megasas_adp_reset_gen2 - For controller reset | |
879 | * @regs: MFI register set | |
880 | */ | |
881 | static int | |
882 | megasas_adp_reset_gen2(struct megasas_instance *instance, | |
883 | struct megasas_register_set __iomem *reg_set) | |
884 | { | |
da0dc9fb BH |
885 | u32 retry = 0 ; |
886 | u32 HostDiag; | |
887 | u32 __iomem *seq_offset = ®_set->seq_offset; | |
888 | u32 __iomem *hostdiag_offset = ®_set->host_diag; | |
ebf054b0 | 889 | |
890 | if (instance->instancet == &megasas_instance_template_skinny) { | |
891 | seq_offset = ®_set->fusion_seq_offset; | |
892 | hostdiag_offset = ®_set->fusion_host_diag; | |
893 | } | |
894 | ||
895 | writel(0, seq_offset); | |
896 | writel(4, seq_offset); | |
897 | writel(0xb, seq_offset); | |
898 | writel(2, seq_offset); | |
899 | writel(7, seq_offset); | |
900 | writel(0xd, seq_offset); | |
39a98554 | 901 | |
39a98554 | 902 | msleep(1000); |
903 | ||
ebf054b0 | 904 | HostDiag = (u32)readl(hostdiag_offset); |
39a98554 | 905 | |
da0dc9fb | 906 | while (!(HostDiag & DIAG_WRITE_ENABLE)) { |
39a98554 | 907 | msleep(100); |
ebf054b0 | 908 | HostDiag = (u32)readl(hostdiag_offset); |
1be18254 | 909 | dev_notice(&instance->pdev->dev, "RESETGEN2: retry=%x, hostdiag=%x\n", |
39a98554 | 910 | retry, HostDiag); |
911 | ||
912 | if (retry++ >= 100) | |
913 | return 1; | |
914 | ||
915 | } | |
916 | ||
1be18254 | 917 | dev_notice(&instance->pdev->dev, "ADP_RESET_GEN2: HostDiag=%x\n", HostDiag); |
39a98554 | 918 | |
ebf054b0 | 919 | writel((HostDiag | DIAG_RESET_ADAPTER), hostdiag_offset); |
39a98554 | 920 | |
921 | ssleep(10); | |
922 | ||
ebf054b0 | 923 | HostDiag = (u32)readl(hostdiag_offset); |
da0dc9fb | 924 | while (HostDiag & DIAG_RESET_ADAPTER) { |
39a98554 | 925 | msleep(100); |
ebf054b0 | 926 | HostDiag = (u32)readl(hostdiag_offset); |
1be18254 | 927 | dev_notice(&instance->pdev->dev, "RESET_GEN2: retry=%x, hostdiag=%x\n", |
39a98554 | 928 | retry, HostDiag); |
929 | ||
930 | if (retry++ >= 1000) | |
931 | return 1; | |
932 | ||
933 | } | |
934 | return 0; | |
935 | } | |
936 | ||
937 | /** | |
938 | * megasas_check_reset_gen2 - For controller reset check | |
939 | * @regs: MFI register set | |
940 | */ | |
941 | static int | |
942 | megasas_check_reset_gen2(struct megasas_instance *instance, | |
943 | struct megasas_register_set __iomem *regs) | |
944 | { | |
8a01a41d | 945 | if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) |
707e09bd | 946 | return 1; |
707e09bd | 947 | |
39a98554 | 948 | return 0; |
6610a6b3 YB |
949 | } |
950 | ||
951 | static struct megasas_instance_template megasas_instance_template_gen2 = { | |
952 | ||
953 | .fire_cmd = megasas_fire_cmd_gen2, | |
954 | .enable_intr = megasas_enable_intr_gen2, | |
955 | .disable_intr = megasas_disable_intr_gen2, | |
956 | .clear_intr = megasas_clear_intr_gen2, | |
957 | .read_fw_status_reg = megasas_read_fw_status_reg_gen2, | |
39a98554 | 958 | .adp_reset = megasas_adp_reset_gen2, |
959 | .check_reset = megasas_check_reset_gen2, | |
cd50ba8e | 960 | .service_isr = megasas_isr, |
961 | .tasklet = megasas_complete_cmd_dpc, | |
962 | .init_adapter = megasas_init_adapter_mfi, | |
963 | .build_and_issue_cmd = megasas_build_and_issue_cmd, | |
964 | .issue_dcmd = megasas_issue_dcmd, | |
6610a6b3 YB |
965 | }; |
966 | ||
f9876f0b SP |
967 | /** |
968 | * This is the end of set of functions & definitions | |
39a98554 | 969 | * specific to gen2 (deviceid : 0x78, 0x79) controllers |
f9876f0b SP |
970 | */ |
971 | ||
9c915a8c | 972 | /* |
973 | * Template added for TB (Fusion) | |
974 | */ | |
975 | extern struct megasas_instance_template megasas_instance_template_fusion; | |
976 | ||
c4a3e0a5 BS |
977 | /** |
978 | * megasas_issue_polled - Issues a polling command | |
979 | * @instance: Adapter soft state | |
0d49016b | 980 | * @cmd: Command packet to be issued |
c4a3e0a5 | 981 | * |
2be2a988 | 982 | * For polling, MFI requires the cmd_status to be set to MFI_STAT_INVALID_STATUS before posting. |
c4a3e0a5 | 983 | */ |
9c915a8c | 984 | int |
c4a3e0a5 BS |
985 | megasas_issue_polled(struct megasas_instance *instance, struct megasas_cmd *cmd) |
986 | { | |
c4a3e0a5 BS |
987 | struct megasas_header *frame_hdr = &cmd->frame->hdr; |
988 | ||
6d40afbc | 989 | frame_hdr->cmd_status = MFI_STAT_INVALID_STATUS; |
94cd65dd | 990 | frame_hdr->flags |= cpu_to_le16(MFI_FRAME_DONT_POST_IN_REPLY_QUEUE); |
c4a3e0a5 | 991 | |
8a01a41d | 992 | if ((atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) || |
6d40afbc SS |
993 | (instance->instancet->issue_dcmd(instance, cmd))) { |
994 | dev_err(&instance->pdev->dev, "Failed from %s %d\n", | |
995 | __func__, __LINE__); | |
996 | return DCMD_NOT_FIRED; | |
997 | } | |
c4a3e0a5 | 998 | |
6d40afbc SS |
999 | return wait_and_poll(instance, cmd, instance->requestorId ? |
1000 | MEGASAS_ROUTINE_WAIT_TIME_VF : MFI_IO_TIMEOUT_SECS); | |
c4a3e0a5 BS |
1001 | } |
1002 | ||
1003 | /** | |
1004 | * megasas_issue_blocked_cmd - Synchronous wrapper around regular FW cmds | |
1005 | * @instance: Adapter soft state | |
1006 | * @cmd: Command to be issued | |
cfbe7554 | 1007 | * @timeout: Timeout in seconds |
c4a3e0a5 BS |
1008 | * |
1009 | * This function waits on an event for the command to be returned from ISR. | |
2a3681e5 | 1010 | * Max wait time is MEGASAS_INTERNAL_CMD_WAIT_TIME secs |
c4a3e0a5 BS |
1011 | * Used to issue ioctl commands. |
1012 | */ | |
90dc9d98 | 1013 | int |
c4a3e0a5 | 1014 | megasas_issue_blocked_cmd(struct megasas_instance *instance, |
cfbe7554 | 1015 | struct megasas_cmd *cmd, int timeout) |
c4a3e0a5 | 1016 | { |
cfbe7554 | 1017 | int ret = 0; |
2be2a988 | 1018 | cmd->cmd_status_drv = MFI_STAT_INVALID_STATUS; |
c4a3e0a5 | 1019 | |
8a01a41d | 1020 | if ((atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) || |
6d40afbc SS |
1021 | (instance->instancet->issue_dcmd(instance, cmd))) { |
1022 | dev_err(&instance->pdev->dev, "Failed from %s %d\n", | |
1023 | __func__, __LINE__); | |
1024 | return DCMD_NOT_FIRED; | |
1025 | } | |
1026 | ||
cfbe7554 SS |
1027 | if (timeout) { |
1028 | ret = wait_event_timeout(instance->int_cmd_wait_q, | |
2be2a988 | 1029 | cmd->cmd_status_drv != MFI_STAT_INVALID_STATUS, timeout * HZ); |
6d40afbc SS |
1030 | if (!ret) { |
1031 | dev_err(&instance->pdev->dev, "Failed from %s %d DCMD Timed out\n", | |
1032 | __func__, __LINE__); | |
1033 | return DCMD_TIMEOUT; | |
1034 | } | |
cfbe7554 SS |
1035 | } else |
1036 | wait_event(instance->int_cmd_wait_q, | |
2be2a988 | 1037 | cmd->cmd_status_drv != MFI_STAT_INVALID_STATUS); |
c4a3e0a5 | 1038 | |
2be2a988 | 1039 | return (cmd->cmd_status_drv == MFI_STAT_OK) ? |
6d40afbc | 1040 | DCMD_SUCCESS : DCMD_FAILED; |
c4a3e0a5 BS |
1041 | } |
1042 | ||
1043 | /** | |
1044 | * megasas_issue_blocked_abort_cmd - Aborts previously issued cmd | |
1045 | * @instance: Adapter soft state | |
1046 | * @cmd_to_abort: Previously issued cmd to be aborted | |
cfbe7554 | 1047 | * @timeout: Timeout in seconds |
c4a3e0a5 | 1048 | * |
cfbe7554 | 1049 | * MFI firmware can abort previously issued AEN comamnd (automatic event |
c4a3e0a5 | 1050 | * notification). The megasas_issue_blocked_abort_cmd() issues such abort |
2a3681e5 SP |
1051 | * cmd and waits for return status. |
1052 | * Max wait time is MEGASAS_INTERNAL_CMD_WAIT_TIME secs | |
c4a3e0a5 BS |
1053 | */ |
1054 | static int | |
1055 | megasas_issue_blocked_abort_cmd(struct megasas_instance *instance, | |
cfbe7554 | 1056 | struct megasas_cmd *cmd_to_abort, int timeout) |
c4a3e0a5 BS |
1057 | { |
1058 | struct megasas_cmd *cmd; | |
1059 | struct megasas_abort_frame *abort_fr; | |
cfbe7554 | 1060 | int ret = 0; |
c4a3e0a5 BS |
1061 | |
1062 | cmd = megasas_get_cmd(instance); | |
1063 | ||
1064 | if (!cmd) | |
1065 | return -1; | |
1066 | ||
1067 | abort_fr = &cmd->frame->abort; | |
1068 | ||
1069 | /* | |
1070 | * Prepare and issue the abort frame | |
1071 | */ | |
1072 | abort_fr->cmd = MFI_CMD_ABORT; | |
2be2a988 | 1073 | abort_fr->cmd_status = MFI_STAT_INVALID_STATUS; |
94cd65dd SS |
1074 | abort_fr->flags = cpu_to_le16(0); |
1075 | abort_fr->abort_context = cpu_to_le32(cmd_to_abort->index); | |
1076 | abort_fr->abort_mfi_phys_addr_lo = | |
1077 | cpu_to_le32(lower_32_bits(cmd_to_abort->frame_phys_addr)); | |
1078 | abort_fr->abort_mfi_phys_addr_hi = | |
1079 | cpu_to_le32(upper_32_bits(cmd_to_abort->frame_phys_addr)); | |
c4a3e0a5 BS |
1080 | |
1081 | cmd->sync_cmd = 1; | |
2be2a988 | 1082 | cmd->cmd_status_drv = MFI_STAT_INVALID_STATUS; |
c4a3e0a5 | 1083 | |
8a01a41d | 1084 | if ((atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) || |
6d40afbc SS |
1085 | (instance->instancet->issue_dcmd(instance, cmd))) { |
1086 | dev_err(&instance->pdev->dev, "Failed from %s %d\n", | |
1087 | __func__, __LINE__); | |
1088 | return DCMD_NOT_FIRED; | |
1089 | } | |
c4a3e0a5 | 1090 | |
cfbe7554 SS |
1091 | if (timeout) { |
1092 | ret = wait_event_timeout(instance->abort_cmd_wait_q, | |
2be2a988 | 1093 | cmd->cmd_status_drv != MFI_STAT_INVALID_STATUS, timeout * HZ); |
cfbe7554 | 1094 | if (!ret) { |
6d40afbc SS |
1095 | dev_err(&instance->pdev->dev, "Failed from %s %d Abort Timed out\n", |
1096 | __func__, __LINE__); | |
1097 | return DCMD_TIMEOUT; | |
cfbe7554 SS |
1098 | } |
1099 | } else | |
1100 | wait_event(instance->abort_cmd_wait_q, | |
2be2a988 | 1101 | cmd->cmd_status_drv != MFI_STAT_INVALID_STATUS); |
cfbe7554 | 1102 | |
39a98554 | 1103 | cmd->sync_cmd = 0; |
c4a3e0a5 BS |
1104 | |
1105 | megasas_return_cmd(instance, cmd); | |
6d40afbc SS |
1106 | return (cmd->cmd_status_drv == MFI_STAT_OK) ? |
1107 | DCMD_SUCCESS : DCMD_FAILED; | |
c4a3e0a5 BS |
1108 | } |
1109 | ||
1110 | /** | |
1111 | * megasas_make_sgl32 - Prepares 32-bit SGL | |
1112 | * @instance: Adapter soft state | |
1113 | * @scp: SCSI command from the mid-layer | |
1114 | * @mfi_sgl: SGL to be filled in | |
1115 | * | |
1116 | * If successful, this function returns the number of SG elements. Otherwise, | |
1117 | * it returnes -1. | |
1118 | */ | |
858119e1 | 1119 | static int |
c4a3e0a5 BS |
1120 | megasas_make_sgl32(struct megasas_instance *instance, struct scsi_cmnd *scp, |
1121 | union megasas_sgl *mfi_sgl) | |
1122 | { | |
1123 | int i; | |
1124 | int sge_count; | |
1125 | struct scatterlist *os_sgl; | |
1126 | ||
155d98f0 FT |
1127 | sge_count = scsi_dma_map(scp); |
1128 | BUG_ON(sge_count < 0); | |
c4a3e0a5 | 1129 | |
155d98f0 FT |
1130 | if (sge_count) { |
1131 | scsi_for_each_sg(scp, os_sgl, sge_count, i) { | |
94cd65dd SS |
1132 | mfi_sgl->sge32[i].length = cpu_to_le32(sg_dma_len(os_sgl)); |
1133 | mfi_sgl->sge32[i].phys_addr = cpu_to_le32(sg_dma_address(os_sgl)); | |
155d98f0 | 1134 | } |
c4a3e0a5 | 1135 | } |
c4a3e0a5 BS |
1136 | return sge_count; |
1137 | } | |
1138 | ||
1139 | /** | |
1140 | * megasas_make_sgl64 - Prepares 64-bit SGL | |
1141 | * @instance: Adapter soft state | |
1142 | * @scp: SCSI command from the mid-layer | |
1143 | * @mfi_sgl: SGL to be filled in | |
1144 | * | |
1145 | * If successful, this function returns the number of SG elements. Otherwise, | |
1146 | * it returnes -1. | |
1147 | */ | |
858119e1 | 1148 | static int |
c4a3e0a5 BS |
1149 | megasas_make_sgl64(struct megasas_instance *instance, struct scsi_cmnd *scp, |
1150 | union megasas_sgl *mfi_sgl) | |
1151 | { | |
1152 | int i; | |
1153 | int sge_count; | |
1154 | struct scatterlist *os_sgl; | |
1155 | ||
155d98f0 FT |
1156 | sge_count = scsi_dma_map(scp); |
1157 | BUG_ON(sge_count < 0); | |
c4a3e0a5 | 1158 | |
155d98f0 FT |
1159 | if (sge_count) { |
1160 | scsi_for_each_sg(scp, os_sgl, sge_count, i) { | |
94cd65dd SS |
1161 | mfi_sgl->sge64[i].length = cpu_to_le32(sg_dma_len(os_sgl)); |
1162 | mfi_sgl->sge64[i].phys_addr = cpu_to_le64(sg_dma_address(os_sgl)); | |
155d98f0 | 1163 | } |
c4a3e0a5 | 1164 | } |
c4a3e0a5 BS |
1165 | return sge_count; |
1166 | } | |
1167 | ||
f4c9a131 YB |
1168 | /** |
1169 | * megasas_make_sgl_skinny - Prepares IEEE SGL | |
1170 | * @instance: Adapter soft state | |
1171 | * @scp: SCSI command from the mid-layer | |
1172 | * @mfi_sgl: SGL to be filled in | |
1173 | * | |
1174 | * If successful, this function returns the number of SG elements. Otherwise, | |
1175 | * it returnes -1. | |
1176 | */ | |
1177 | static int | |
1178 | megasas_make_sgl_skinny(struct megasas_instance *instance, | |
1179 | struct scsi_cmnd *scp, union megasas_sgl *mfi_sgl) | |
1180 | { | |
1181 | int i; | |
1182 | int sge_count; | |
1183 | struct scatterlist *os_sgl; | |
1184 | ||
1185 | sge_count = scsi_dma_map(scp); | |
1186 | ||
1187 | if (sge_count) { | |
1188 | scsi_for_each_sg(scp, os_sgl, sge_count, i) { | |
94cd65dd SS |
1189 | mfi_sgl->sge_skinny[i].length = |
1190 | cpu_to_le32(sg_dma_len(os_sgl)); | |
f4c9a131 | 1191 | mfi_sgl->sge_skinny[i].phys_addr = |
94cd65dd SS |
1192 | cpu_to_le64(sg_dma_address(os_sgl)); |
1193 | mfi_sgl->sge_skinny[i].flag = cpu_to_le32(0); | |
f4c9a131 YB |
1194 | } |
1195 | } | |
1196 | return sge_count; | |
1197 | } | |
1198 | ||
b1df99d9 SP |
1199 | /** |
1200 | * megasas_get_frame_count - Computes the number of frames | |
d532dbe2 | 1201 | * @frame_type : type of frame- io or pthru frame |
b1df99d9 SP |
1202 | * @sge_count : number of sg elements |
1203 | * | |
1204 | * Returns the number of frames required for numnber of sge's (sge_count) | |
1205 | */ | |
1206 | ||
f4c9a131 YB |
1207 | static u32 megasas_get_frame_count(struct megasas_instance *instance, |
1208 | u8 sge_count, u8 frame_type) | |
b1df99d9 SP |
1209 | { |
1210 | int num_cnt; | |
1211 | int sge_bytes; | |
1212 | u32 sge_sz; | |
da0dc9fb | 1213 | u32 frame_count = 0; |
b1df99d9 SP |
1214 | |
1215 | sge_sz = (IS_DMA64) ? sizeof(struct megasas_sge64) : | |
1216 | sizeof(struct megasas_sge32); | |
1217 | ||
f4c9a131 YB |
1218 | if (instance->flag_ieee) { |
1219 | sge_sz = sizeof(struct megasas_sge_skinny); | |
1220 | } | |
1221 | ||
b1df99d9 | 1222 | /* |
d532dbe2 | 1223 | * Main frame can contain 2 SGEs for 64-bit SGLs and |
1224 | * 3 SGEs for 32-bit SGLs for ldio & | |
1225 | * 1 SGEs for 64-bit SGLs and | |
1226 | * 2 SGEs for 32-bit SGLs for pthru frame | |
1227 | */ | |
1228 | if (unlikely(frame_type == PTHRU_FRAME)) { | |
f4c9a131 YB |
1229 | if (instance->flag_ieee == 1) { |
1230 | num_cnt = sge_count - 1; | |
1231 | } else if (IS_DMA64) | |
d532dbe2 | 1232 | num_cnt = sge_count - 1; |
1233 | else | |
1234 | num_cnt = sge_count - 2; | |
1235 | } else { | |
f4c9a131 YB |
1236 | if (instance->flag_ieee == 1) { |
1237 | num_cnt = sge_count - 1; | |
1238 | } else if (IS_DMA64) | |
d532dbe2 | 1239 | num_cnt = sge_count - 2; |
1240 | else | |
1241 | num_cnt = sge_count - 3; | |
1242 | } | |
b1df99d9 | 1243 | |
da0dc9fb | 1244 | if (num_cnt > 0) { |
b1df99d9 SP |
1245 | sge_bytes = sge_sz * num_cnt; |
1246 | ||
1247 | frame_count = (sge_bytes / MEGAMFI_FRAME_SIZE) + | |
1248 | ((sge_bytes % MEGAMFI_FRAME_SIZE) ? 1 : 0) ; | |
1249 | } | |
1250 | /* Main frame */ | |
da0dc9fb | 1251 | frame_count += 1; |
b1df99d9 SP |
1252 | |
1253 | if (frame_count > 7) | |
1254 | frame_count = 8; | |
1255 | return frame_count; | |
1256 | } | |
1257 | ||
c4a3e0a5 BS |
1258 | /** |
1259 | * megasas_build_dcdb - Prepares a direct cdb (DCDB) command | |
1260 | * @instance: Adapter soft state | |
1261 | * @scp: SCSI command | |
1262 | * @cmd: Command to be prepared in | |
1263 | * | |
1264 | * This function prepares CDB commands. These are typcially pass-through | |
1265 | * commands to the devices. | |
1266 | */ | |
858119e1 | 1267 | static int |
c4a3e0a5 BS |
1268 | megasas_build_dcdb(struct megasas_instance *instance, struct scsi_cmnd *scp, |
1269 | struct megasas_cmd *cmd) | |
1270 | { | |
c4a3e0a5 BS |
1271 | u32 is_logical; |
1272 | u32 device_id; | |
1273 | u16 flags = 0; | |
1274 | struct megasas_pthru_frame *pthru; | |
1275 | ||
1276 | is_logical = MEGASAS_IS_LOGICAL(scp); | |
4a5c814d | 1277 | device_id = MEGASAS_DEV_INDEX(scp); |
c4a3e0a5 BS |
1278 | pthru = (struct megasas_pthru_frame *)cmd->frame; |
1279 | ||
1280 | if (scp->sc_data_direction == PCI_DMA_TODEVICE) | |
1281 | flags = MFI_FRAME_DIR_WRITE; | |
1282 | else if (scp->sc_data_direction == PCI_DMA_FROMDEVICE) | |
1283 | flags = MFI_FRAME_DIR_READ; | |
1284 | else if (scp->sc_data_direction == PCI_DMA_NONE) | |
1285 | flags = MFI_FRAME_DIR_NONE; | |
1286 | ||
f4c9a131 YB |
1287 | if (instance->flag_ieee == 1) { |
1288 | flags |= MFI_FRAME_IEEE; | |
1289 | } | |
1290 | ||
c4a3e0a5 BS |
1291 | /* |
1292 | * Prepare the DCDB frame | |
1293 | */ | |
1294 | pthru->cmd = (is_logical) ? MFI_CMD_LD_SCSI_IO : MFI_CMD_PD_SCSI_IO; | |
1295 | pthru->cmd_status = 0x0; | |
1296 | pthru->scsi_status = 0x0; | |
1297 | pthru->target_id = device_id; | |
1298 | pthru->lun = scp->device->lun; | |
1299 | pthru->cdb_len = scp->cmd_len; | |
1300 | pthru->timeout = 0; | |
780a3762 | 1301 | pthru->pad_0 = 0; |
94cd65dd SS |
1302 | pthru->flags = cpu_to_le16(flags); |
1303 | pthru->data_xfer_len = cpu_to_le32(scsi_bufflen(scp)); | |
c4a3e0a5 BS |
1304 | |
1305 | memcpy(pthru->cdb, scp->cmnd, scp->cmd_len); | |
1306 | ||
8d568253 | 1307 | /* |
da0dc9fb BH |
1308 | * If the command is for the tape device, set the |
1309 | * pthru timeout to the os layer timeout value. | |
1310 | */ | |
8d568253 YB |
1311 | if (scp->device->type == TYPE_TAPE) { |
1312 | if ((scp->request->timeout / HZ) > 0xFFFF) | |
c6f5bf81 | 1313 | pthru->timeout = cpu_to_le16(0xFFFF); |
8d568253 | 1314 | else |
94cd65dd | 1315 | pthru->timeout = cpu_to_le16(scp->request->timeout / HZ); |
8d568253 YB |
1316 | } |
1317 | ||
c4a3e0a5 BS |
1318 | /* |
1319 | * Construct SGL | |
1320 | */ | |
f4c9a131 | 1321 | if (instance->flag_ieee == 1) { |
94cd65dd | 1322 | pthru->flags |= cpu_to_le16(MFI_FRAME_SGL64); |
f4c9a131 YB |
1323 | pthru->sge_count = megasas_make_sgl_skinny(instance, scp, |
1324 | &pthru->sgl); | |
1325 | } else if (IS_DMA64) { | |
94cd65dd | 1326 | pthru->flags |= cpu_to_le16(MFI_FRAME_SGL64); |
c4a3e0a5 BS |
1327 | pthru->sge_count = megasas_make_sgl64(instance, scp, |
1328 | &pthru->sgl); | |
1329 | } else | |
1330 | pthru->sge_count = megasas_make_sgl32(instance, scp, | |
1331 | &pthru->sgl); | |
1332 | ||
bdc6fb8d | 1333 | if (pthru->sge_count > instance->max_num_sge) { |
1be18254 | 1334 | dev_err(&instance->pdev->dev, "DCDB too many SGE NUM=%x\n", |
bdc6fb8d YB |
1335 | pthru->sge_count); |
1336 | return 0; | |
1337 | } | |
1338 | ||
c4a3e0a5 BS |
1339 | /* |
1340 | * Sense info specific | |
1341 | */ | |
1342 | pthru->sense_len = SCSI_SENSE_BUFFERSIZE; | |
94cd65dd SS |
1343 | pthru->sense_buf_phys_addr_hi = |
1344 | cpu_to_le32(upper_32_bits(cmd->sense_phys_addr)); | |
1345 | pthru->sense_buf_phys_addr_lo = | |
1346 | cpu_to_le32(lower_32_bits(cmd->sense_phys_addr)); | |
c4a3e0a5 | 1347 | |
c4a3e0a5 BS |
1348 | /* |
1349 | * Compute the total number of frames this command consumes. FW uses | |
1350 | * this number to pull sufficient number of frames from host memory. | |
1351 | */ | |
f4c9a131 | 1352 | cmd->frame_count = megasas_get_frame_count(instance, pthru->sge_count, |
d532dbe2 | 1353 | PTHRU_FRAME); |
c4a3e0a5 BS |
1354 | |
1355 | return cmd->frame_count; | |
1356 | } | |
1357 | ||
1358 | /** | |
1359 | * megasas_build_ldio - Prepares IOs to logical devices | |
1360 | * @instance: Adapter soft state | |
1361 | * @scp: SCSI command | |
fd589a8f | 1362 | * @cmd: Command to be prepared |
c4a3e0a5 BS |
1363 | * |
1364 | * Frames (and accompanying SGLs) for regular SCSI IOs use this function. | |
1365 | */ | |
858119e1 | 1366 | static int |
c4a3e0a5 BS |
1367 | megasas_build_ldio(struct megasas_instance *instance, struct scsi_cmnd *scp, |
1368 | struct megasas_cmd *cmd) | |
1369 | { | |
c4a3e0a5 BS |
1370 | u32 device_id; |
1371 | u8 sc = scp->cmnd[0]; | |
1372 | u16 flags = 0; | |
1373 | struct megasas_io_frame *ldio; | |
1374 | ||
4a5c814d | 1375 | device_id = MEGASAS_DEV_INDEX(scp); |
c4a3e0a5 BS |
1376 | ldio = (struct megasas_io_frame *)cmd->frame; |
1377 | ||
1378 | if (scp->sc_data_direction == PCI_DMA_TODEVICE) | |
1379 | flags = MFI_FRAME_DIR_WRITE; | |
1380 | else if (scp->sc_data_direction == PCI_DMA_FROMDEVICE) | |
1381 | flags = MFI_FRAME_DIR_READ; | |
1382 | ||
f4c9a131 YB |
1383 | if (instance->flag_ieee == 1) { |
1384 | flags |= MFI_FRAME_IEEE; | |
1385 | } | |
1386 | ||
c4a3e0a5 | 1387 | /* |
b1df99d9 | 1388 | * Prepare the Logical IO frame: 2nd bit is zero for all read cmds |
c4a3e0a5 BS |
1389 | */ |
1390 | ldio->cmd = (sc & 0x02) ? MFI_CMD_LD_WRITE : MFI_CMD_LD_READ; | |
1391 | ldio->cmd_status = 0x0; | |
1392 | ldio->scsi_status = 0x0; | |
1393 | ldio->target_id = device_id; | |
1394 | ldio->timeout = 0; | |
1395 | ldio->reserved_0 = 0; | |
1396 | ldio->pad_0 = 0; | |
94cd65dd | 1397 | ldio->flags = cpu_to_le16(flags); |
c4a3e0a5 BS |
1398 | ldio->start_lba_hi = 0; |
1399 | ldio->access_byte = (scp->cmd_len != 6) ? scp->cmnd[1] : 0; | |
1400 | ||
1401 | /* | |
1402 | * 6-byte READ(0x08) or WRITE(0x0A) cdb | |
1403 | */ | |
1404 | if (scp->cmd_len == 6) { | |
94cd65dd SS |
1405 | ldio->lba_count = cpu_to_le32((u32) scp->cmnd[4]); |
1406 | ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[1] << 16) | | |
1407 | ((u32) scp->cmnd[2] << 8) | | |
1408 | (u32) scp->cmnd[3]); | |
c4a3e0a5 | 1409 | |
94cd65dd | 1410 | ldio->start_lba_lo &= cpu_to_le32(0x1FFFFF); |
c4a3e0a5 BS |
1411 | } |
1412 | ||
1413 | /* | |
1414 | * 10-byte READ(0x28) or WRITE(0x2A) cdb | |
1415 | */ | |
1416 | else if (scp->cmd_len == 10) { | |
94cd65dd SS |
1417 | ldio->lba_count = cpu_to_le32((u32) scp->cmnd[8] | |
1418 | ((u32) scp->cmnd[7] << 8)); | |
1419 | ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[2] << 24) | | |
1420 | ((u32) scp->cmnd[3] << 16) | | |
1421 | ((u32) scp->cmnd[4] << 8) | | |
1422 | (u32) scp->cmnd[5]); | |
c4a3e0a5 BS |
1423 | } |
1424 | ||
1425 | /* | |
1426 | * 12-byte READ(0xA8) or WRITE(0xAA) cdb | |
1427 | */ | |
1428 | else if (scp->cmd_len == 12) { | |
94cd65dd SS |
1429 | ldio->lba_count = cpu_to_le32(((u32) scp->cmnd[6] << 24) | |
1430 | ((u32) scp->cmnd[7] << 16) | | |
1431 | ((u32) scp->cmnd[8] << 8) | | |
1432 | (u32) scp->cmnd[9]); | |
c4a3e0a5 | 1433 | |
94cd65dd SS |
1434 | ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[2] << 24) | |
1435 | ((u32) scp->cmnd[3] << 16) | | |
1436 | ((u32) scp->cmnd[4] << 8) | | |
1437 | (u32) scp->cmnd[5]); | |
c4a3e0a5 BS |
1438 | } |
1439 | ||
1440 | /* | |
1441 | * 16-byte READ(0x88) or WRITE(0x8A) cdb | |
1442 | */ | |
1443 | else if (scp->cmd_len == 16) { | |
94cd65dd SS |
1444 | ldio->lba_count = cpu_to_le32(((u32) scp->cmnd[10] << 24) | |
1445 | ((u32) scp->cmnd[11] << 16) | | |
1446 | ((u32) scp->cmnd[12] << 8) | | |
1447 | (u32) scp->cmnd[13]); | |
c4a3e0a5 | 1448 | |
94cd65dd SS |
1449 | ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[6] << 24) | |
1450 | ((u32) scp->cmnd[7] << 16) | | |
1451 | ((u32) scp->cmnd[8] << 8) | | |
1452 | (u32) scp->cmnd[9]); | |
c4a3e0a5 | 1453 | |
94cd65dd SS |
1454 | ldio->start_lba_hi = cpu_to_le32(((u32) scp->cmnd[2] << 24) | |
1455 | ((u32) scp->cmnd[3] << 16) | | |
1456 | ((u32) scp->cmnd[4] << 8) | | |
1457 | (u32) scp->cmnd[5]); | |
c4a3e0a5 BS |
1458 | |
1459 | } | |
1460 | ||
1461 | /* | |
1462 | * Construct SGL | |
1463 | */ | |
f4c9a131 | 1464 | if (instance->flag_ieee) { |
94cd65dd | 1465 | ldio->flags |= cpu_to_le16(MFI_FRAME_SGL64); |
f4c9a131 YB |
1466 | ldio->sge_count = megasas_make_sgl_skinny(instance, scp, |
1467 | &ldio->sgl); | |
1468 | } else if (IS_DMA64) { | |
94cd65dd | 1469 | ldio->flags |= cpu_to_le16(MFI_FRAME_SGL64); |
c4a3e0a5 BS |
1470 | ldio->sge_count = megasas_make_sgl64(instance, scp, &ldio->sgl); |
1471 | } else | |
1472 | ldio->sge_count = megasas_make_sgl32(instance, scp, &ldio->sgl); | |
1473 | ||
bdc6fb8d | 1474 | if (ldio->sge_count > instance->max_num_sge) { |
1be18254 | 1475 | dev_err(&instance->pdev->dev, "build_ld_io: sge_count = %x\n", |
bdc6fb8d YB |
1476 | ldio->sge_count); |
1477 | return 0; | |
1478 | } | |
1479 | ||
c4a3e0a5 BS |
1480 | /* |
1481 | * Sense info specific | |
1482 | */ | |
1483 | ldio->sense_len = SCSI_SENSE_BUFFERSIZE; | |
1484 | ldio->sense_buf_phys_addr_hi = 0; | |
94cd65dd | 1485 | ldio->sense_buf_phys_addr_lo = cpu_to_le32(cmd->sense_phys_addr); |
c4a3e0a5 | 1486 | |
b1df99d9 SP |
1487 | /* |
1488 | * Compute the total number of frames this command consumes. FW uses | |
1489 | * this number to pull sufficient number of frames from host memory. | |
1490 | */ | |
f4c9a131 YB |
1491 | cmd->frame_count = megasas_get_frame_count(instance, |
1492 | ldio->sge_count, IO_FRAME); | |
c4a3e0a5 BS |
1493 | |
1494 | return cmd->frame_count; | |
1495 | } | |
1496 | ||
1497 | /** | |
7497cde8 SS |
1498 | * megasas_cmd_type - Checks if the cmd is for logical drive/sysPD |
1499 | * and whether it's RW or non RW | |
cb59aa6a | 1500 | * @scmd: SCSI command |
0d49016b | 1501 | * |
c4a3e0a5 | 1502 | */ |
7497cde8 | 1503 | inline int megasas_cmd_type(struct scsi_cmnd *cmd) |
c4a3e0a5 | 1504 | { |
7497cde8 SS |
1505 | int ret; |
1506 | ||
cb59aa6a SP |
1507 | switch (cmd->cmnd[0]) { |
1508 | case READ_10: | |
1509 | case WRITE_10: | |
1510 | case READ_12: | |
1511 | case WRITE_12: | |
1512 | case READ_6: | |
1513 | case WRITE_6: | |
1514 | case READ_16: | |
1515 | case WRITE_16: | |
7497cde8 SS |
1516 | ret = (MEGASAS_IS_LOGICAL(cmd)) ? |
1517 | READ_WRITE_LDIO : READ_WRITE_SYSPDIO; | |
1518 | break; | |
cb59aa6a | 1519 | default: |
7497cde8 SS |
1520 | ret = (MEGASAS_IS_LOGICAL(cmd)) ? |
1521 | NON_READ_WRITE_LDIO : NON_READ_WRITE_SYSPDIO; | |
c4a3e0a5 | 1522 | } |
7497cde8 | 1523 | return ret; |
c4a3e0a5 BS |
1524 | } |
1525 | ||
658dcedb SP |
1526 | /** |
1527 | * megasas_dump_pending_frames - Dumps the frame address of all pending cmds | |
da0dc9fb | 1528 | * in FW |
658dcedb SP |
1529 | * @instance: Adapter soft state |
1530 | */ | |
1531 | static inline void | |
1532 | megasas_dump_pending_frames(struct megasas_instance *instance) | |
1533 | { | |
1534 | struct megasas_cmd *cmd; | |
1535 | int i,n; | |
1536 | union megasas_sgl *mfi_sgl; | |
1537 | struct megasas_io_frame *ldio; | |
1538 | struct megasas_pthru_frame *pthru; | |
1539 | u32 sgcount; | |
1540 | u32 max_cmd = instance->max_fw_cmds; | |
1541 | ||
1be18254 BH |
1542 | dev_err(&instance->pdev->dev, "[%d]: Dumping Frame Phys Address of all pending cmds in FW\n",instance->host->host_no); |
1543 | dev_err(&instance->pdev->dev, "[%d]: Total OS Pending cmds : %d\n",instance->host->host_no,atomic_read(&instance->fw_outstanding)); | |
658dcedb | 1544 | if (IS_DMA64) |
1be18254 | 1545 | dev_err(&instance->pdev->dev, "[%d]: 64 bit SGLs were sent to FW\n",instance->host->host_no); |
658dcedb | 1546 | else |
1be18254 | 1547 | dev_err(&instance->pdev->dev, "[%d]: 32 bit SGLs were sent to FW\n",instance->host->host_no); |
658dcedb | 1548 | |
1be18254 | 1549 | dev_err(&instance->pdev->dev, "[%d]: Pending OS cmds in FW : \n",instance->host->host_no); |
658dcedb SP |
1550 | for (i = 0; i < max_cmd; i++) { |
1551 | cmd = instance->cmd_list[i]; | |
da0dc9fb | 1552 | if (!cmd->scmd) |
658dcedb | 1553 | continue; |
1be18254 | 1554 | dev_err(&instance->pdev->dev, "[%d]: Frame addr :0x%08lx : ",instance->host->host_no,(unsigned long)cmd->frame_phys_addr); |
7497cde8 | 1555 | if (megasas_cmd_type(cmd->scmd) == READ_WRITE_LDIO) { |
658dcedb SP |
1556 | ldio = (struct megasas_io_frame *)cmd->frame; |
1557 | mfi_sgl = &ldio->sgl; | |
1558 | sgcount = ldio->sge_count; | |
1be18254 | 1559 | dev_err(&instance->pdev->dev, "[%d]: frame count : 0x%x, Cmd : 0x%x, Tgt id : 0x%x," |
94cd65dd SS |
1560 | " lba lo : 0x%x, lba_hi : 0x%x, sense_buf addr : 0x%x,sge count : 0x%x\n", |
1561 | instance->host->host_no, cmd->frame_count, ldio->cmd, ldio->target_id, | |
1562 | le32_to_cpu(ldio->start_lba_lo), le32_to_cpu(ldio->start_lba_hi), | |
1563 | le32_to_cpu(ldio->sense_buf_phys_addr_lo), sgcount); | |
da0dc9fb | 1564 | } else { |
658dcedb SP |
1565 | pthru = (struct megasas_pthru_frame *) cmd->frame; |
1566 | mfi_sgl = &pthru->sgl; | |
1567 | sgcount = pthru->sge_count; | |
1be18254 | 1568 | dev_err(&instance->pdev->dev, "[%d]: frame count : 0x%x, Cmd : 0x%x, Tgt id : 0x%x, " |
94cd65dd SS |
1569 | "lun : 0x%x, cdb_len : 0x%x, data xfer len : 0x%x, sense_buf addr : 0x%x,sge count : 0x%x\n", |
1570 | instance->host->host_no, cmd->frame_count, pthru->cmd, pthru->target_id, | |
1571 | pthru->lun, pthru->cdb_len, le32_to_cpu(pthru->data_xfer_len), | |
1572 | le32_to_cpu(pthru->sense_buf_phys_addr_lo), sgcount); | |
658dcedb | 1573 | } |
da0dc9fb BH |
1574 | if (megasas_dbg_lvl & MEGASAS_DBG_LVL) { |
1575 | for (n = 0; n < sgcount; n++) { | |
1576 | if (IS_DMA64) | |
1577 | dev_err(&instance->pdev->dev, "sgl len : 0x%x, sgl addr : 0x%llx\n", | |
1578 | le32_to_cpu(mfi_sgl->sge64[n].length), | |
1579 | le64_to_cpu(mfi_sgl->sge64[n].phys_addr)); | |
1580 | else | |
1581 | dev_err(&instance->pdev->dev, "sgl len : 0x%x, sgl addr : 0x%x\n", | |
1582 | le32_to_cpu(mfi_sgl->sge32[n].length), | |
1583 | le32_to_cpu(mfi_sgl->sge32[n].phys_addr)); | |
658dcedb SP |
1584 | } |
1585 | } | |
658dcedb | 1586 | } /*for max_cmd*/ |
1be18254 | 1587 | dev_err(&instance->pdev->dev, "[%d]: Pending Internal cmds in FW : \n",instance->host->host_no); |
658dcedb SP |
1588 | for (i = 0; i < max_cmd; i++) { |
1589 | ||
1590 | cmd = instance->cmd_list[i]; | |
1591 | ||
da0dc9fb | 1592 | if (cmd->sync_cmd == 1) |
1be18254 | 1593 | dev_err(&instance->pdev->dev, "0x%08lx : ", (unsigned long)cmd->frame_phys_addr); |
658dcedb | 1594 | } |
1be18254 | 1595 | dev_err(&instance->pdev->dev, "[%d]: Dumping Done\n\n",instance->host->host_no); |
658dcedb SP |
1596 | } |
1597 | ||
cd50ba8e | 1598 | u32 |
1599 | megasas_build_and_issue_cmd(struct megasas_instance *instance, | |
1600 | struct scsi_cmnd *scmd) | |
1601 | { | |
1602 | struct megasas_cmd *cmd; | |
1603 | u32 frame_count; | |
1604 | ||
1605 | cmd = megasas_get_cmd(instance); | |
1606 | if (!cmd) | |
1607 | return SCSI_MLQUEUE_HOST_BUSY; | |
1608 | ||
1609 | /* | |
1610 | * Logical drive command | |
1611 | */ | |
7497cde8 | 1612 | if (megasas_cmd_type(scmd) == READ_WRITE_LDIO) |
cd50ba8e | 1613 | frame_count = megasas_build_ldio(instance, scmd, cmd); |
1614 | else | |
1615 | frame_count = megasas_build_dcdb(instance, scmd, cmd); | |
1616 | ||
1617 | if (!frame_count) | |
1618 | goto out_return_cmd; | |
1619 | ||
1620 | cmd->scmd = scmd; | |
1621 | scmd->SCp.ptr = (char *)cmd; | |
1622 | ||
1623 | /* | |
1624 | * Issue the command to the FW | |
1625 | */ | |
1626 | atomic_inc(&instance->fw_outstanding); | |
1627 | ||
1628 | instance->instancet->fire_cmd(instance, cmd->frame_phys_addr, | |
1629 | cmd->frame_count-1, instance->reg_set); | |
cd50ba8e | 1630 | |
1631 | return 0; | |
1632 | out_return_cmd: | |
1633 | megasas_return_cmd(instance, cmd); | |
f9a9dee6 | 1634 | return SCSI_MLQUEUE_HOST_BUSY; |
cd50ba8e | 1635 | } |
1636 | ||
1637 | ||
c4a3e0a5 BS |
1638 | /** |
1639 | * megasas_queue_command - Queue entry point | |
1640 | * @scmd: SCSI command to be queued | |
1641 | * @done: Callback entry point | |
1642 | */ | |
1643 | static int | |
fb1a24ff | 1644 | megasas_queue_command(struct Scsi_Host *shost, struct scsi_cmnd *scmd) |
c4a3e0a5 | 1645 | { |
c4a3e0a5 | 1646 | struct megasas_instance *instance; |
18365b13 | 1647 | struct MR_PRIV_DEVICE *mr_device_priv_data; |
c4a3e0a5 BS |
1648 | |
1649 | instance = (struct megasas_instance *) | |
1650 | scmd->device->host->hostdata; | |
af37acfb | 1651 | |
aa00832b SS |
1652 | if (instance->unload == 1) { |
1653 | scmd->result = DID_NO_CONNECT << 16; | |
1654 | scmd->scsi_done(scmd); | |
1655 | return 0; | |
1656 | } | |
1657 | ||
39a98554 | 1658 | if (instance->issuepend_done == 0) |
af37acfb SP |
1659 | return SCSI_MLQUEUE_HOST_BUSY; |
1660 | ||
b09e66da | 1661 | |
229fe47c | 1662 | /* Check for an mpio path and adjust behavior */ |
8a01a41d | 1663 | if (atomic_read(&instance->adprecovery) == MEGASAS_ADPRESET_SM_INFAULT) { |
229fe47c | 1664 | if (megasas_check_mpio_paths(instance, scmd) == |
1665 | (DID_RESET << 16)) { | |
229fe47c | 1666 | return SCSI_MLQUEUE_HOST_BUSY; |
1667 | } else { | |
229fe47c | 1668 | scmd->result = DID_NO_CONNECT << 16; |
fb1a24ff | 1669 | scmd->scsi_done(scmd); |
229fe47c | 1670 | return 0; |
1671 | } | |
1672 | } | |
1673 | ||
8a01a41d | 1674 | if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { |
229fe47c | 1675 | scmd->result = DID_NO_CONNECT << 16; |
fb1a24ff | 1676 | scmd->scsi_done(scmd); |
b09e66da SS |
1677 | return 0; |
1678 | } | |
1679 | ||
18365b13 SS |
1680 | mr_device_priv_data = scmd->device->hostdata; |
1681 | if (!mr_device_priv_data) { | |
18365b13 SS |
1682 | scmd->result = DID_NO_CONNECT << 16; |
1683 | scmd->scsi_done(scmd); | |
1684 | return 0; | |
1685 | } | |
1686 | ||
8a01a41d | 1687 | if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) |
39a98554 | 1688 | return SCSI_MLQUEUE_HOST_BUSY; |
39a98554 | 1689 | |
8a01a41d | 1690 | if (mr_device_priv_data->tm_busy) |
18365b13 | 1691 | return SCSI_MLQUEUE_DEVICE_BUSY; |
18365b13 | 1692 | |
39a98554 | 1693 | |
c4a3e0a5 BS |
1694 | scmd->result = 0; |
1695 | ||
cb59aa6a | 1696 | if (MEGASAS_IS_LOGICAL(scmd) && |
51087a86 SS |
1697 | (scmd->device->id >= instance->fw_supported_vd_count || |
1698 | scmd->device->lun)) { | |
cb59aa6a SP |
1699 | scmd->result = DID_BAD_TARGET << 16; |
1700 | goto out_done; | |
c4a3e0a5 BS |
1701 | } |
1702 | ||
d0fc91d6 KD |
1703 | if ((scmd->cmnd[0] == SYNCHRONIZE_CACHE) && MEGASAS_IS_LOGICAL(scmd) && |
1704 | (!instance->fw_sync_cache_support)) { | |
02b01e01 SP |
1705 | scmd->result = DID_OK << 16; |
1706 | goto out_done; | |
02b01e01 SP |
1707 | } |
1708 | ||
f9a9dee6 | 1709 | return instance->instancet->build_and_issue_cmd(instance, scmd); |
cb59aa6a | 1710 | |
cb59aa6a | 1711 | out_done: |
fb1a24ff | 1712 | scmd->scsi_done(scmd); |
cb59aa6a | 1713 | return 0; |
c4a3e0a5 BS |
1714 | } |
1715 | ||
044833b5 YB |
1716 | static struct megasas_instance *megasas_lookup_instance(u16 host_no) |
1717 | { | |
1718 | int i; | |
1719 | ||
1720 | for (i = 0; i < megasas_mgmt_info.max_index; i++) { | |
1721 | ||
1722 | if ((megasas_mgmt_info.instance[i]) && | |
1723 | (megasas_mgmt_info.instance[i]->host->host_no == host_no)) | |
1724 | return megasas_mgmt_info.instance[i]; | |
1725 | } | |
1726 | ||
1727 | return NULL; | |
1728 | } | |
1729 | ||
0b48d12d | 1730 | /* |
18365b13 | 1731 | * megasas_update_sdev_properties - Update sdev structure based on controller's FW capabilities |
0b48d12d | 1732 | * |
1733 | * @sdev: OS provided scsi device | |
1734 | * | |
1735 | * Returns void | |
1736 | */ | |
18365b13 | 1737 | void megasas_update_sdev_properties(struct scsi_device *sdev) |
0b48d12d | 1738 | { |
18365b13 | 1739 | u16 pd_index = 0; |
0b48d12d | 1740 | u32 device_id, ld; |
1741 | struct megasas_instance *instance; | |
1742 | struct fusion_context *fusion; | |
18365b13 SS |
1743 | struct MR_PRIV_DEVICE *mr_device_priv_data; |
1744 | struct MR_PD_CFG_SEQ_NUM_SYNC *pd_sync; | |
0b48d12d | 1745 | struct MR_LD_RAID *raid; |
1746 | struct MR_DRV_RAID_MAP_ALL *local_map_ptr; | |
1747 | ||
1748 | instance = megasas_lookup_instance(sdev->host->host_no); | |
1749 | fusion = instance->ctrl_context; | |
18365b13 | 1750 | mr_device_priv_data = sdev->hostdata; |
0b48d12d | 1751 | |
1752 | if (!fusion) | |
1753 | return; | |
1754 | ||
18365b13 SS |
1755 | if (sdev->channel < MEGASAS_MAX_PD_CHANNELS && |
1756 | instance->use_seqnum_jbod_fp) { | |
1757 | pd_index = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + | |
1758 | sdev->id; | |
1759 | pd_sync = (void *)fusion->pd_seq_sync | |
1760 | [(instance->pd_seq_map_id - 1) & 1]; | |
1761 | mr_device_priv_data->is_tm_capable = | |
1762 | pd_sync->seq[pd_index].capability.tmCapable; | |
1763 | } else { | |
0b48d12d | 1764 | device_id = ((sdev->channel % 2) * MEGASAS_MAX_DEV_PER_CHANNEL) |
1765 | + sdev->id; | |
1766 | local_map_ptr = fusion->ld_drv_map[(instance->map_id & 1)]; | |
1767 | ld = MR_TargetIdToLdGet(device_id, local_map_ptr); | |
1768 | raid = MR_LdRaidGet(ld, local_map_ptr); | |
1769 | ||
1770 | if (raid->capability.ldPiMode == MR_PROT_INFO_TYPE_CONTROLLER) | |
18365b13 SS |
1771 | blk_queue_update_dma_alignment(sdev->request_queue, 0x7); |
1772 | mr_device_priv_data->is_tm_capable = | |
1773 | raid->capability.tmCapable; | |
0b48d12d | 1774 | } |
1775 | } | |
1776 | ||
2216c305 SS |
1777 | static void megasas_set_device_queue_depth(struct scsi_device *sdev) |
1778 | { | |
1779 | u16 pd_index = 0; | |
1780 | int ret = DCMD_FAILED; | |
1781 | struct megasas_instance *instance; | |
1782 | ||
1783 | instance = megasas_lookup_instance(sdev->host->host_no); | |
1784 | ||
1785 | if (sdev->channel < MEGASAS_MAX_PD_CHANNELS) { | |
1786 | pd_index = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + sdev->id; | |
1787 | ||
1788 | if (instance->pd_info) { | |
1789 | mutex_lock(&instance->hba_mutex); | |
1790 | ret = megasas_get_pd_info(instance, pd_index); | |
1791 | mutex_unlock(&instance->hba_mutex); | |
1792 | } | |
1793 | ||
1794 | if (ret != DCMD_SUCCESS) | |
1795 | return; | |
1796 | ||
1797 | if (instance->pd_list[pd_index].driveState == MR_PD_STATE_SYSTEM) { | |
1798 | ||
1799 | switch (instance->pd_list[pd_index].interface) { | |
1800 | case SAS_PD: | |
1801 | scsi_change_queue_depth(sdev, MEGASAS_SAS_QD); | |
1802 | break; | |
1803 | ||
1804 | case SATA_PD: | |
1805 | scsi_change_queue_depth(sdev, MEGASAS_SATA_QD); | |
1806 | break; | |
1807 | ||
1808 | default: | |
1809 | scsi_change_queue_depth(sdev, MEGASAS_DEFAULT_PD_QD); | |
1810 | } | |
1811 | } | |
1812 | } | |
1813 | } | |
1814 | ||
18365b13 | 1815 | |
147aab6a CH |
1816 | static int megasas_slave_configure(struct scsi_device *sdev) |
1817 | { | |
aed335ee SS |
1818 | u16 pd_index = 0; |
1819 | struct megasas_instance *instance; | |
1820 | ||
1821 | instance = megasas_lookup_instance(sdev->host->host_no); | |
30845586 | 1822 | if (instance->pd_list_not_supported) { |
aed335ee SS |
1823 | if (sdev->channel < MEGASAS_MAX_PD_CHANNELS && |
1824 | sdev->type == TYPE_DISK) { | |
1825 | pd_index = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + | |
1826 | sdev->id; | |
1827 | if (instance->pd_list[pd_index].driveState != | |
1828 | MR_PD_STATE_SYSTEM) | |
1829 | return -ENXIO; | |
1830 | } | |
1831 | } | |
2216c305 | 1832 | megasas_set_device_queue_depth(sdev); |
18365b13 SS |
1833 | megasas_update_sdev_properties(sdev); |
1834 | ||
e5b3a65f | 1835 | /* |
da0dc9fb BH |
1836 | * The RAID firmware may require extended timeouts. |
1837 | */ | |
044833b5 | 1838 | blk_queue_rq_timeout(sdev->request_queue, |
e3d178ca | 1839 | scmd_timeout * HZ); |
07e38d94 | 1840 | |
044833b5 YB |
1841 | return 0; |
1842 | } | |
1843 | ||
1844 | static int megasas_slave_alloc(struct scsi_device *sdev) | |
1845 | { | |
da0dc9fb | 1846 | u16 pd_index = 0; |
044833b5 | 1847 | struct megasas_instance *instance ; |
18365b13 | 1848 | struct MR_PRIV_DEVICE *mr_device_priv_data; |
da0dc9fb | 1849 | |
044833b5 | 1850 | instance = megasas_lookup_instance(sdev->host->host_no); |
07e38d94 | 1851 | if (sdev->channel < MEGASAS_MAX_PD_CHANNELS) { |
044833b5 YB |
1852 | /* |
1853 | * Open the OS scan to the SYSTEM PD | |
1854 | */ | |
1855 | pd_index = | |
1856 | (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + | |
1857 | sdev->id; | |
30845586 SS |
1858 | if ((instance->pd_list_not_supported || |
1859 | instance->pd_list[pd_index].driveState == | |
aed335ee | 1860 | MR_PD_STATE_SYSTEM)) { |
18365b13 | 1861 | goto scan_target; |
044833b5 YB |
1862 | } |
1863 | return -ENXIO; | |
1864 | } | |
18365b13 SS |
1865 | |
1866 | scan_target: | |
1867 | mr_device_priv_data = kzalloc(sizeof(*mr_device_priv_data), | |
1868 | GFP_KERNEL); | |
1869 | if (!mr_device_priv_data) | |
1870 | return -ENOMEM; | |
1871 | sdev->hostdata = mr_device_priv_data; | |
147aab6a CH |
1872 | return 0; |
1873 | } | |
1874 | ||
18365b13 SS |
1875 | static void megasas_slave_destroy(struct scsi_device *sdev) |
1876 | { | |
1877 | kfree(sdev->hostdata); | |
1878 | sdev->hostdata = NULL; | |
1879 | } | |
1880 | ||
c8dd61ef SS |
1881 | /* |
1882 | * megasas_complete_outstanding_ioctls - Complete outstanding ioctls after a | |
1883 | * kill adapter | |
1884 | * @instance: Adapter soft state | |
1885 | * | |
1886 | */ | |
6a6981fe | 1887 | static void megasas_complete_outstanding_ioctls(struct megasas_instance *instance) |
c8dd61ef SS |
1888 | { |
1889 | int i; | |
1890 | struct megasas_cmd *cmd_mfi; | |
1891 | struct megasas_cmd_fusion *cmd_fusion; | |
1892 | struct fusion_context *fusion = instance->ctrl_context; | |
1893 | ||
1894 | /* Find all outstanding ioctls */ | |
1895 | if (fusion) { | |
1896 | for (i = 0; i < instance->max_fw_cmds; i++) { | |
1897 | cmd_fusion = fusion->cmd_list[i]; | |
1898 | if (cmd_fusion->sync_cmd_idx != (u32)ULONG_MAX) { | |
1899 | cmd_mfi = instance->cmd_list[cmd_fusion->sync_cmd_idx]; | |
1900 | if (cmd_mfi->sync_cmd && | |
1901 | cmd_mfi->frame->hdr.cmd != MFI_CMD_ABORT) | |
1902 | megasas_complete_cmd(instance, | |
1903 | cmd_mfi, DID_OK); | |
1904 | } | |
1905 | } | |
1906 | } else { | |
1907 | for (i = 0; i < instance->max_fw_cmds; i++) { | |
1908 | cmd_mfi = instance->cmd_list[i]; | |
1909 | if (cmd_mfi->sync_cmd && cmd_mfi->frame->hdr.cmd != | |
1910 | MFI_CMD_ABORT) | |
1911 | megasas_complete_cmd(instance, cmd_mfi, DID_OK); | |
1912 | } | |
1913 | } | |
1914 | } | |
1915 | ||
1916 | ||
9c915a8c | 1917 | void megaraid_sas_kill_hba(struct megasas_instance *instance) |
39a98554 | 1918 | { |
c8dd61ef | 1919 | /* Set critical error to block I/O & ioctls in case caller didn't */ |
8a01a41d | 1920 | atomic_set(&instance->adprecovery, MEGASAS_HW_CRITICAL_ERROR); |
c8dd61ef SS |
1921 | /* Wait 1 second to ensure IO or ioctls in build have posted */ |
1922 | msleep(1000); | |
39a98554 | 1923 | if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) || |
c8dd61ef | 1924 | (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY) || |
5a8cb85b | 1925 | (instance->ctrl_context)) { |
da0dc9fb | 1926 | writel(MFI_STOP_ADP, &instance->reg_set->doorbell); |
229fe47c | 1927 | /* Flush */ |
1928 | readl(&instance->reg_set->doorbell); | |
8f67c8c5 | 1929 | if (instance->requestorId && instance->peerIsPresent) |
229fe47c | 1930 | memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS); |
39a98554 | 1931 | } else { |
c8dd61ef SS |
1932 | writel(MFI_STOP_ADP, |
1933 | &instance->reg_set->inbound_doorbell); | |
9c915a8c | 1934 | } |
c8dd61ef SS |
1935 | /* Complete outstanding ioctls when adapter is killed */ |
1936 | megasas_complete_outstanding_ioctls(instance); | |
9c915a8c | 1937 | } |
1938 | ||
1939 | /** | |
1940 | * megasas_check_and_restore_queue_depth - Check if queue depth needs to be | |
1941 | * restored to max value | |
1942 | * @instance: Adapter soft state | |
1943 | * | |
1944 | */ | |
1945 | void | |
1946 | megasas_check_and_restore_queue_depth(struct megasas_instance *instance) | |
1947 | { | |
1948 | unsigned long flags; | |
ae09a6c1 | 1949 | |
9c915a8c | 1950 | if (instance->flag & MEGASAS_FW_BUSY |
c5daa6a9 | 1951 | && time_after(jiffies, instance->last_time + 5 * HZ) |
1952 | && atomic_read(&instance->fw_outstanding) < | |
1953 | instance->throttlequeuedepth + 1) { | |
9c915a8c | 1954 | |
1955 | spin_lock_irqsave(instance->host->host_lock, flags); | |
1956 | instance->flag &= ~MEGASAS_FW_BUSY; | |
9c915a8c | 1957 | |
308ec459 | 1958 | instance->host->can_queue = instance->cur_can_queue; |
9c915a8c | 1959 | spin_unlock_irqrestore(instance->host->host_lock, flags); |
39a98554 | 1960 | } |
1961 | } | |
1962 | ||
7343eb65 | 1963 | /** |
1964 | * megasas_complete_cmd_dpc - Returns FW's controller structure | |
1965 | * @instance_addr: Address of adapter soft state | |
1966 | * | |
1967 | * Tasklet to complete cmds | |
1968 | */ | |
1969 | static void megasas_complete_cmd_dpc(unsigned long instance_addr) | |
1970 | { | |
1971 | u32 producer; | |
1972 | u32 consumer; | |
1973 | u32 context; | |
1974 | struct megasas_cmd *cmd; | |
1975 | struct megasas_instance *instance = | |
1976 | (struct megasas_instance *)instance_addr; | |
1977 | unsigned long flags; | |
1978 | ||
1979 | /* If we have already declared adapter dead, donot complete cmds */ | |
8a01a41d | 1980 | if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) |
7343eb65 | 1981 | return; |
1982 | ||
1983 | spin_lock_irqsave(&instance->completion_lock, flags); | |
1984 | ||
94cd65dd SS |
1985 | producer = le32_to_cpu(*instance->producer); |
1986 | consumer = le32_to_cpu(*instance->consumer); | |
7343eb65 | 1987 | |
1988 | while (consumer != producer) { | |
94cd65dd | 1989 | context = le32_to_cpu(instance->reply_queue[consumer]); |
39a98554 | 1990 | if (context >= instance->max_fw_cmds) { |
1be18254 | 1991 | dev_err(&instance->pdev->dev, "Unexpected context value %x\n", |
39a98554 | 1992 | context); |
1993 | BUG(); | |
1994 | } | |
7343eb65 | 1995 | |
1996 | cmd = instance->cmd_list[context]; | |
1997 | ||
1998 | megasas_complete_cmd(instance, cmd, DID_OK); | |
1999 | ||
2000 | consumer++; | |
2001 | if (consumer == (instance->max_fw_cmds + 1)) { | |
2002 | consumer = 0; | |
2003 | } | |
2004 | } | |
2005 | ||
94cd65dd | 2006 | *instance->consumer = cpu_to_le32(producer); |
7343eb65 | 2007 | |
2008 | spin_unlock_irqrestore(&instance->completion_lock, flags); | |
2009 | ||
2010 | /* | |
2011 | * Check if we can restore can_queue | |
2012 | */ | |
9c915a8c | 2013 | megasas_check_and_restore_queue_depth(instance); |
7343eb65 | 2014 | } |
2015 | ||
229fe47c | 2016 | /** |
2017 | * megasas_start_timer - Initializes a timer object | |
2018 | * @instance: Adapter soft state | |
2019 | * @timer: timer object to be initialized | |
2020 | * @fn: timer function | |
2021 | * @interval: time interval between timer function call | |
2022 | * | |
2023 | */ | |
2024 | void megasas_start_timer(struct megasas_instance *instance, | |
2025 | struct timer_list *timer, | |
2026 | void *fn, unsigned long interval) | |
2027 | { | |
2028 | init_timer(timer); | |
2029 | timer->expires = jiffies + interval; | |
2030 | timer->data = (unsigned long)instance; | |
2031 | timer->function = fn; | |
2032 | add_timer(timer); | |
2033 | } | |
2034 | ||
707e09bd YB |
2035 | static void |
2036 | megasas_internal_reset_defer_cmds(struct megasas_instance *instance); | |
2037 | ||
2038 | static void | |
2039 | process_fw_state_change_wq(struct work_struct *work); | |
2040 | ||
2041 | void megasas_do_ocr(struct megasas_instance *instance) | |
2042 | { | |
2043 | if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS1064R) || | |
2044 | (instance->pdev->device == PCI_DEVICE_ID_DELL_PERC5) || | |
2045 | (instance->pdev->device == PCI_DEVICE_ID_LSI_VERDE_ZCR)) { | |
94cd65dd | 2046 | *instance->consumer = cpu_to_le32(MEGASAS_ADPRESET_INPROG_SIGN); |
707e09bd | 2047 | } |
d46a3ad6 | 2048 | instance->instancet->disable_intr(instance); |
8a01a41d | 2049 | atomic_set(&instance->adprecovery, MEGASAS_ADPRESET_SM_INFAULT); |
707e09bd YB |
2050 | instance->issuepend_done = 0; |
2051 | ||
2052 | atomic_set(&instance->fw_outstanding, 0); | |
2053 | megasas_internal_reset_defer_cmds(instance); | |
2054 | process_fw_state_change_wq(&instance->work_init); | |
2055 | } | |
2056 | ||
4cbfea88 AR |
2057 | static int megasas_get_ld_vf_affiliation_111(struct megasas_instance *instance, |
2058 | int initial) | |
229fe47c | 2059 | { |
2060 | struct megasas_cmd *cmd; | |
2061 | struct megasas_dcmd_frame *dcmd; | |
229fe47c | 2062 | struct MR_LD_VF_AFFILIATION_111 *new_affiliation_111 = NULL; |
229fe47c | 2063 | dma_addr_t new_affiliation_111_h; |
2064 | int ld, retval = 0; | |
2065 | u8 thisVf; | |
2066 | ||
2067 | cmd = megasas_get_cmd(instance); | |
2068 | ||
2069 | if (!cmd) { | |
1be18254 BH |
2070 | dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_vf_affiliation_111:" |
2071 | "Failed to get cmd for scsi%d\n", | |
229fe47c | 2072 | instance->host->host_no); |
2073 | return -ENOMEM; | |
2074 | } | |
2075 | ||
2076 | dcmd = &cmd->frame->dcmd; | |
2077 | ||
4cbfea88 | 2078 | if (!instance->vf_affiliation_111) { |
1be18254 BH |
2079 | dev_warn(&instance->pdev->dev, "SR-IOV: Couldn't get LD/VF " |
2080 | "affiliation for scsi%d\n", instance->host->host_no); | |
229fe47c | 2081 | megasas_return_cmd(instance, cmd); |
2082 | return -ENOMEM; | |
2083 | } | |
2084 | ||
2085 | if (initial) | |
229fe47c | 2086 | memset(instance->vf_affiliation_111, 0, |
2087 | sizeof(struct MR_LD_VF_AFFILIATION_111)); | |
229fe47c | 2088 | else { |
4cbfea88 AR |
2089 | new_affiliation_111 = |
2090 | pci_alloc_consistent(instance->pdev, | |
2091 | sizeof(struct MR_LD_VF_AFFILIATION_111), | |
2092 | &new_affiliation_111_h); | |
2093 | if (!new_affiliation_111) { | |
1be18254 BH |
2094 | dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate " |
2095 | "memory for new affiliation for scsi%d\n", | |
4cbfea88 | 2096 | instance->host->host_no); |
229fe47c | 2097 | megasas_return_cmd(instance, cmd); |
2098 | return -ENOMEM; | |
2099 | } | |
4cbfea88 AR |
2100 | memset(new_affiliation_111, 0, |
2101 | sizeof(struct MR_LD_VF_AFFILIATION_111)); | |
229fe47c | 2102 | } |
2103 | ||
2104 | memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); | |
2105 | ||
2106 | dcmd->cmd = MFI_CMD_DCMD; | |
2be2a988 | 2107 | dcmd->cmd_status = MFI_STAT_INVALID_STATUS; |
229fe47c | 2108 | dcmd->sge_count = 1; |
2213a467 | 2109 | dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_BOTH); |
229fe47c | 2110 | dcmd->timeout = 0; |
2111 | dcmd->pad_0 = 0; | |
2213a467 CH |
2112 | dcmd->data_xfer_len = |
2113 | cpu_to_le32(sizeof(struct MR_LD_VF_AFFILIATION_111)); | |
2114 | dcmd->opcode = cpu_to_le32(MR_DCMD_LD_VF_MAP_GET_ALL_LDS_111); | |
229fe47c | 2115 | |
4cbfea88 AR |
2116 | if (initial) |
2117 | dcmd->sgl.sge32[0].phys_addr = | |
2213a467 | 2118 | cpu_to_le32(instance->vf_affiliation_111_h); |
229fe47c | 2119 | else |
2213a467 CH |
2120 | dcmd->sgl.sge32[0].phys_addr = |
2121 | cpu_to_le32(new_affiliation_111_h); | |
4cbfea88 | 2122 | |
2213a467 CH |
2123 | dcmd->sgl.sge32[0].length = cpu_to_le32( |
2124 | sizeof(struct MR_LD_VF_AFFILIATION_111)); | |
229fe47c | 2125 | |
1be18254 | 2126 | dev_warn(&instance->pdev->dev, "SR-IOV: Getting LD/VF affiliation for " |
229fe47c | 2127 | "scsi%d\n", instance->host->host_no); |
2128 | ||
6d40afbc | 2129 | if (megasas_issue_blocked_cmd(instance, cmd, 0) != DCMD_SUCCESS) { |
1be18254 BH |
2130 | dev_warn(&instance->pdev->dev, "SR-IOV: LD/VF affiliation DCMD" |
2131 | " failed with status 0x%x for scsi%d\n", | |
229fe47c | 2132 | dcmd->cmd_status, instance->host->host_no); |
2133 | retval = 1; /* Do a scan if we couldn't get affiliation */ | |
2134 | goto out; | |
2135 | } | |
2136 | ||
2137 | if (!initial) { | |
4cbfea88 AR |
2138 | thisVf = new_affiliation_111->thisVf; |
2139 | for (ld = 0 ; ld < new_affiliation_111->vdCount; ld++) | |
2140 | if (instance->vf_affiliation_111->map[ld].policy[thisVf] != | |
2141 | new_affiliation_111->map[ld].policy[thisVf]) { | |
1be18254 BH |
2142 | dev_warn(&instance->pdev->dev, "SR-IOV: " |
2143 | "Got new LD/VF affiliation for scsi%d\n", | |
229fe47c | 2144 | instance->host->host_no); |
4cbfea88 AR |
2145 | memcpy(instance->vf_affiliation_111, |
2146 | new_affiliation_111, | |
2147 | sizeof(struct MR_LD_VF_AFFILIATION_111)); | |
229fe47c | 2148 | retval = 1; |
2149 | goto out; | |
2150 | } | |
4cbfea88 AR |
2151 | } |
2152 | out: | |
2153 | if (new_affiliation_111) { | |
2154 | pci_free_consistent(instance->pdev, | |
2155 | sizeof(struct MR_LD_VF_AFFILIATION_111), | |
2156 | new_affiliation_111, | |
2157 | new_affiliation_111_h); | |
2158 | } | |
90dc9d98 | 2159 | |
4026e9aa | 2160 | megasas_return_cmd(instance, cmd); |
4cbfea88 AR |
2161 | |
2162 | return retval; | |
2163 | } | |
2164 | ||
2165 | static int megasas_get_ld_vf_affiliation_12(struct megasas_instance *instance, | |
2166 | int initial) | |
2167 | { | |
2168 | struct megasas_cmd *cmd; | |
2169 | struct megasas_dcmd_frame *dcmd; | |
2170 | struct MR_LD_VF_AFFILIATION *new_affiliation = NULL; | |
2171 | struct MR_LD_VF_MAP *newmap = NULL, *savedmap = NULL; | |
2172 | dma_addr_t new_affiliation_h; | |
2173 | int i, j, retval = 0, found = 0, doscan = 0; | |
2174 | u8 thisVf; | |
2175 | ||
2176 | cmd = megasas_get_cmd(instance); | |
2177 | ||
2178 | if (!cmd) { | |
1be18254 BH |
2179 | dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_vf_affiliation12: " |
2180 | "Failed to get cmd for scsi%d\n", | |
4cbfea88 AR |
2181 | instance->host->host_no); |
2182 | return -ENOMEM; | |
2183 | } | |
2184 | ||
2185 | dcmd = &cmd->frame->dcmd; | |
2186 | ||
2187 | if (!instance->vf_affiliation) { | |
1be18254 BH |
2188 | dev_warn(&instance->pdev->dev, "SR-IOV: Couldn't get LD/VF " |
2189 | "affiliation for scsi%d\n", instance->host->host_no); | |
4cbfea88 AR |
2190 | megasas_return_cmd(instance, cmd); |
2191 | return -ENOMEM; | |
2192 | } | |
2193 | ||
2194 | if (initial) | |
2195 | memset(instance->vf_affiliation, 0, (MAX_LOGICAL_DRIVES + 1) * | |
2196 | sizeof(struct MR_LD_VF_AFFILIATION)); | |
2197 | else { | |
2198 | new_affiliation = | |
2199 | pci_alloc_consistent(instance->pdev, | |
2200 | (MAX_LOGICAL_DRIVES + 1) * | |
2201 | sizeof(struct MR_LD_VF_AFFILIATION), | |
2202 | &new_affiliation_h); | |
2203 | if (!new_affiliation) { | |
1be18254 BH |
2204 | dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate " |
2205 | "memory for new affiliation for scsi%d\n", | |
4cbfea88 AR |
2206 | instance->host->host_no); |
2207 | megasas_return_cmd(instance, cmd); | |
2208 | return -ENOMEM; | |
2209 | } | |
2210 | memset(new_affiliation, 0, (MAX_LOGICAL_DRIVES + 1) * | |
2211 | sizeof(struct MR_LD_VF_AFFILIATION)); | |
2212 | } | |
2213 | ||
2214 | memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); | |
2215 | ||
2216 | dcmd->cmd = MFI_CMD_DCMD; | |
2be2a988 | 2217 | dcmd->cmd_status = MFI_STAT_INVALID_STATUS; |
4cbfea88 | 2218 | dcmd->sge_count = 1; |
2213a467 | 2219 | dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_BOTH); |
4cbfea88 AR |
2220 | dcmd->timeout = 0; |
2221 | dcmd->pad_0 = 0; | |
2213a467 CH |
2222 | dcmd->data_xfer_len = cpu_to_le32((MAX_LOGICAL_DRIVES + 1) * |
2223 | sizeof(struct MR_LD_VF_AFFILIATION)); | |
2224 | dcmd->opcode = cpu_to_le32(MR_DCMD_LD_VF_MAP_GET_ALL_LDS); | |
4cbfea88 AR |
2225 | |
2226 | if (initial) | |
2213a467 CH |
2227 | dcmd->sgl.sge32[0].phys_addr = |
2228 | cpu_to_le32(instance->vf_affiliation_h); | |
4cbfea88 | 2229 | else |
2213a467 CH |
2230 | dcmd->sgl.sge32[0].phys_addr = |
2231 | cpu_to_le32(new_affiliation_h); | |
4cbfea88 | 2232 | |
2213a467 CH |
2233 | dcmd->sgl.sge32[0].length = cpu_to_le32((MAX_LOGICAL_DRIVES + 1) * |
2234 | sizeof(struct MR_LD_VF_AFFILIATION)); | |
4cbfea88 | 2235 | |
1be18254 | 2236 | dev_warn(&instance->pdev->dev, "SR-IOV: Getting LD/VF affiliation for " |
4cbfea88 AR |
2237 | "scsi%d\n", instance->host->host_no); |
2238 | ||
4cbfea88 | 2239 | |
6d40afbc | 2240 | if (megasas_issue_blocked_cmd(instance, cmd, 0) != DCMD_SUCCESS) { |
1be18254 BH |
2241 | dev_warn(&instance->pdev->dev, "SR-IOV: LD/VF affiliation DCMD" |
2242 | " failed with status 0x%x for scsi%d\n", | |
4cbfea88 AR |
2243 | dcmd->cmd_status, instance->host->host_no); |
2244 | retval = 1; /* Do a scan if we couldn't get affiliation */ | |
2245 | goto out; | |
2246 | } | |
2247 | ||
2248 | if (!initial) { | |
2249 | if (!new_affiliation->ldCount) { | |
1be18254 BH |
2250 | dev_warn(&instance->pdev->dev, "SR-IOV: Got new LD/VF " |
2251 | "affiliation for passive path for scsi%d\n", | |
4cbfea88 AR |
2252 | instance->host->host_no); |
2253 | retval = 1; | |
2254 | goto out; | |
2255 | } | |
2256 | newmap = new_affiliation->map; | |
2257 | savedmap = instance->vf_affiliation->map; | |
2258 | thisVf = new_affiliation->thisVf; | |
2259 | for (i = 0 ; i < new_affiliation->ldCount; i++) { | |
2260 | found = 0; | |
2261 | for (j = 0; j < instance->vf_affiliation->ldCount; | |
2262 | j++) { | |
2263 | if (newmap->ref.targetId == | |
2264 | savedmap->ref.targetId) { | |
2265 | found = 1; | |
2266 | if (newmap->policy[thisVf] != | |
2267 | savedmap->policy[thisVf]) { | |
2268 | doscan = 1; | |
2269 | goto out; | |
2270 | } | |
229fe47c | 2271 | } |
2272 | savedmap = (struct MR_LD_VF_MAP *) | |
2273 | ((unsigned char *)savedmap + | |
2274 | savedmap->size); | |
4cbfea88 AR |
2275 | } |
2276 | if (!found && newmap->policy[thisVf] != | |
2277 | MR_LD_ACCESS_HIDDEN) { | |
2278 | doscan = 1; | |
2279 | goto out; | |
2280 | } | |
2281 | newmap = (struct MR_LD_VF_MAP *) | |
2282 | ((unsigned char *)newmap + newmap->size); | |
2283 | } | |
2284 | ||
2285 | newmap = new_affiliation->map; | |
2286 | savedmap = instance->vf_affiliation->map; | |
2287 | ||
2288 | for (i = 0 ; i < instance->vf_affiliation->ldCount; i++) { | |
2289 | found = 0; | |
2290 | for (j = 0 ; j < new_affiliation->ldCount; j++) { | |
2291 | if (savedmap->ref.targetId == | |
2292 | newmap->ref.targetId) { | |
2293 | found = 1; | |
2294 | if (savedmap->policy[thisVf] != | |
2295 | newmap->policy[thisVf]) { | |
2296 | doscan = 1; | |
2297 | goto out; | |
2298 | } | |
2299 | } | |
229fe47c | 2300 | newmap = (struct MR_LD_VF_MAP *) |
2301 | ((unsigned char *)newmap + | |
2302 | newmap->size); | |
2303 | } | |
4cbfea88 AR |
2304 | if (!found && savedmap->policy[thisVf] != |
2305 | MR_LD_ACCESS_HIDDEN) { | |
2306 | doscan = 1; | |
2307 | goto out; | |
2308 | } | |
2309 | savedmap = (struct MR_LD_VF_MAP *) | |
2310 | ((unsigned char *)savedmap + | |
2311 | savedmap->size); | |
229fe47c | 2312 | } |
2313 | } | |
2314 | out: | |
4cbfea88 | 2315 | if (doscan) { |
1be18254 BH |
2316 | dev_warn(&instance->pdev->dev, "SR-IOV: Got new LD/VF " |
2317 | "affiliation for scsi%d\n", instance->host->host_no); | |
4cbfea88 AR |
2318 | memcpy(instance->vf_affiliation, new_affiliation, |
2319 | new_affiliation->size); | |
2320 | retval = 1; | |
229fe47c | 2321 | } |
4cbfea88 AR |
2322 | |
2323 | if (new_affiliation) | |
2324 | pci_free_consistent(instance->pdev, | |
2325 | (MAX_LOGICAL_DRIVES + 1) * | |
2326 | sizeof(struct MR_LD_VF_AFFILIATION), | |
2327 | new_affiliation, new_affiliation_h); | |
4026e9aa | 2328 | megasas_return_cmd(instance, cmd); |
229fe47c | 2329 | |
2330 | return retval; | |
2331 | } | |
2332 | ||
4cbfea88 AR |
2333 | /* This function will get the current SR-IOV LD/VF affiliation */ |
2334 | static int megasas_get_ld_vf_affiliation(struct megasas_instance *instance, | |
2335 | int initial) | |
2336 | { | |
2337 | int retval; | |
2338 | ||
2339 | if (instance->PlasmaFW111) | |
2340 | retval = megasas_get_ld_vf_affiliation_111(instance, initial); | |
2341 | else | |
2342 | retval = megasas_get_ld_vf_affiliation_12(instance, initial); | |
2343 | return retval; | |
2344 | } | |
2345 | ||
229fe47c | 2346 | /* This function will tell FW to start the SR-IOV heartbeat */ |
2347 | int megasas_sriov_start_heartbeat(struct megasas_instance *instance, | |
2348 | int initial) | |
2349 | { | |
2350 | struct megasas_cmd *cmd; | |
2351 | struct megasas_dcmd_frame *dcmd; | |
2352 | int retval = 0; | |
2353 | ||
2354 | cmd = megasas_get_cmd(instance); | |
2355 | ||
2356 | if (!cmd) { | |
1be18254 BH |
2357 | dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_sriov_start_heartbeat: " |
2358 | "Failed to get cmd for scsi%d\n", | |
229fe47c | 2359 | instance->host->host_no); |
2360 | return -ENOMEM; | |
2361 | } | |
2362 | ||
2363 | dcmd = &cmd->frame->dcmd; | |
2364 | ||
2365 | if (initial) { | |
2366 | instance->hb_host_mem = | |
7c845eb5 JP |
2367 | pci_zalloc_consistent(instance->pdev, |
2368 | sizeof(struct MR_CTRL_HB_HOST_MEM), | |
2369 | &instance->hb_host_mem_h); | |
229fe47c | 2370 | if (!instance->hb_host_mem) { |
1be18254 BH |
2371 | dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate" |
2372 | " memory for heartbeat host memory for scsi%d\n", | |
2373 | instance->host->host_no); | |
229fe47c | 2374 | retval = -ENOMEM; |
2375 | goto out; | |
2376 | } | |
229fe47c | 2377 | } |
2378 | ||
2379 | memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); | |
2380 | ||
2213a467 | 2381 | dcmd->mbox.s[0] = cpu_to_le16(sizeof(struct MR_CTRL_HB_HOST_MEM)); |
229fe47c | 2382 | dcmd->cmd = MFI_CMD_DCMD; |
2be2a988 | 2383 | dcmd->cmd_status = MFI_STAT_INVALID_STATUS; |
229fe47c | 2384 | dcmd->sge_count = 1; |
2213a467 | 2385 | dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_BOTH); |
229fe47c | 2386 | dcmd->timeout = 0; |
2387 | dcmd->pad_0 = 0; | |
2213a467 CH |
2388 | dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_CTRL_HB_HOST_MEM)); |
2389 | dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_SHARED_HOST_MEM_ALLOC); | |
2390 | dcmd->sgl.sge32[0].phys_addr = cpu_to_le32(instance->hb_host_mem_h); | |
2391 | dcmd->sgl.sge32[0].length = cpu_to_le32(sizeof(struct MR_CTRL_HB_HOST_MEM)); | |
229fe47c | 2392 | |
1be18254 | 2393 | dev_warn(&instance->pdev->dev, "SR-IOV: Starting heartbeat for scsi%d\n", |
229fe47c | 2394 | instance->host->host_no); |
2395 | ||
4026e9aa SS |
2396 | if (instance->ctrl_context && !instance->mask_interrupts) |
2397 | retval = megasas_issue_blocked_cmd(instance, cmd, | |
2398 | MEGASAS_ROUTINE_WAIT_TIME_VF); | |
2399 | else | |
2400 | retval = megasas_issue_polled(instance, cmd); | |
229fe47c | 2401 | |
4026e9aa | 2402 | if (retval) { |
2be2a988 SS |
2403 | dev_warn(&instance->pdev->dev, "SR-IOV: MR_DCMD_CTRL_SHARED_HOST" |
2404 | "_MEM_ALLOC DCMD %s for scsi%d\n", | |
2405 | (dcmd->cmd_status == MFI_STAT_INVALID_STATUS) ? | |
2406 | "timed out" : "failed", instance->host->host_no); | |
229fe47c | 2407 | retval = 1; |
229fe47c | 2408 | } |
2409 | ||
2410 | out: | |
2411 | megasas_return_cmd(instance, cmd); | |
2412 | ||
2413 | return retval; | |
2414 | } | |
2415 | ||
2416 | /* Handler for SR-IOV heartbeat */ | |
2417 | void megasas_sriov_heartbeat_handler(unsigned long instance_addr) | |
2418 | { | |
2419 | struct megasas_instance *instance = | |
2420 | (struct megasas_instance *)instance_addr; | |
2421 | ||
2422 | if (instance->hb_host_mem->HB.fwCounter != | |
2423 | instance->hb_host_mem->HB.driverCounter) { | |
2424 | instance->hb_host_mem->HB.driverCounter = | |
2425 | instance->hb_host_mem->HB.fwCounter; | |
2426 | mod_timer(&instance->sriov_heartbeat_timer, | |
2427 | jiffies + MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF); | |
2428 | } else { | |
1be18254 | 2429 | dev_warn(&instance->pdev->dev, "SR-IOV: Heartbeat never " |
229fe47c | 2430 | "completed for scsi%d\n", instance->host->host_no); |
2431 | schedule_work(&instance->work_init); | |
2432 | } | |
2433 | } | |
2434 | ||
c4a3e0a5 BS |
2435 | /** |
2436 | * megasas_wait_for_outstanding - Wait for all outstanding cmds | |
2437 | * @instance: Adapter soft state | |
2438 | * | |
25985edc | 2439 | * This function waits for up to MEGASAS_RESET_WAIT_TIME seconds for FW to |
c4a3e0a5 BS |
2440 | * complete all its outstanding commands. Returns error if one or more IOs |
2441 | * are pending after this time period. It also marks the controller dead. | |
2442 | */ | |
2443 | static int megasas_wait_for_outstanding(struct megasas_instance *instance) | |
2444 | { | |
ccc7507d | 2445 | int i, sl, outstanding; |
39a98554 | 2446 | u32 reset_index; |
c4a3e0a5 | 2447 | u32 wait_time = MEGASAS_RESET_WAIT_TIME; |
39a98554 | 2448 | unsigned long flags; |
2449 | struct list_head clist_local; | |
2450 | struct megasas_cmd *reset_cmd; | |
707e09bd | 2451 | u32 fw_state; |
39a98554 | 2452 | |
ccc7507d SS |
2453 | if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { |
2454 | dev_info(&instance->pdev->dev, "%s:%d HBA is killed.\n", | |
2455 | __func__, __LINE__); | |
2456 | return FAILED; | |
2457 | } | |
39a98554 | 2458 | |
8a01a41d | 2459 | if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) { |
39a98554 | 2460 | |
2461 | INIT_LIST_HEAD(&clist_local); | |
2462 | spin_lock_irqsave(&instance->hba_lock, flags); | |
2463 | list_splice_init(&instance->internal_reset_pending_q, | |
2464 | &clist_local); | |
2465 | spin_unlock_irqrestore(&instance->hba_lock, flags); | |
2466 | ||
1be18254 | 2467 | dev_notice(&instance->pdev->dev, "HBA reset wait ...\n"); |
39a98554 | 2468 | for (i = 0; i < wait_time; i++) { |
2469 | msleep(1000); | |
8a01a41d | 2470 | if (atomic_read(&instance->adprecovery) == MEGASAS_HBA_OPERATIONAL) |
39a98554 | 2471 | break; |
2472 | } | |
2473 | ||
8a01a41d | 2474 | if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) { |
1be18254 | 2475 | dev_notice(&instance->pdev->dev, "reset: Stopping HBA.\n"); |
8a01a41d | 2476 | atomic_set(&instance->adprecovery, MEGASAS_HW_CRITICAL_ERROR); |
39a98554 | 2477 | return FAILED; |
2478 | } | |
2479 | ||
da0dc9fb | 2480 | reset_index = 0; |
39a98554 | 2481 | while (!list_empty(&clist_local)) { |
da0dc9fb | 2482 | reset_cmd = list_entry((&clist_local)->next, |
39a98554 | 2483 | struct megasas_cmd, list); |
2484 | list_del_init(&reset_cmd->list); | |
2485 | if (reset_cmd->scmd) { | |
2486 | reset_cmd->scmd->result = DID_RESET << 16; | |
1be18254 | 2487 | dev_notice(&instance->pdev->dev, "%d:%p reset [%02x]\n", |
39a98554 | 2488 | reset_index, reset_cmd, |
5cd049a5 | 2489 | reset_cmd->scmd->cmnd[0]); |
39a98554 | 2490 | |
2491 | reset_cmd->scmd->scsi_done(reset_cmd->scmd); | |
2492 | megasas_return_cmd(instance, reset_cmd); | |
2493 | } else if (reset_cmd->sync_cmd) { | |
1be18254 | 2494 | dev_notice(&instance->pdev->dev, "%p synch cmds" |
39a98554 | 2495 | "reset queue\n", |
2496 | reset_cmd); | |
2497 | ||
2be2a988 | 2498 | reset_cmd->cmd_status_drv = MFI_STAT_INVALID_STATUS; |
39a98554 | 2499 | instance->instancet->fire_cmd(instance, |
2500 | reset_cmd->frame_phys_addr, | |
2501 | 0, instance->reg_set); | |
2502 | } else { | |
1be18254 | 2503 | dev_notice(&instance->pdev->dev, "%p unexpected" |
39a98554 | 2504 | "cmds lst\n", |
2505 | reset_cmd); | |
2506 | } | |
2507 | reset_index++; | |
2508 | } | |
2509 | ||
2510 | return SUCCESS; | |
2511 | } | |
c4a3e0a5 | 2512 | |
c007b8b2 | 2513 | for (i = 0; i < resetwaittime; i++) { |
ccc7507d | 2514 | outstanding = atomic_read(&instance->fw_outstanding); |
e4a082c7 SP |
2515 | |
2516 | if (!outstanding) | |
c4a3e0a5 BS |
2517 | break; |
2518 | ||
2519 | if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) { | |
1be18254 | 2520 | dev_notice(&instance->pdev->dev, "[%2d]waiting for %d " |
e4a082c7 | 2521 | "commands to complete\n",i,outstanding); |
7343eb65 | 2522 | /* |
2523 | * Call cmd completion routine. Cmd to be | |
2524 | * be completed directly without depending on isr. | |
2525 | */ | |
2526 | megasas_complete_cmd_dpc((unsigned long)instance); | |
c4a3e0a5 BS |
2527 | } |
2528 | ||
2529 | msleep(1000); | |
2530 | } | |
2531 | ||
707e09bd | 2532 | i = 0; |
ccc7507d SS |
2533 | outstanding = atomic_read(&instance->fw_outstanding); |
2534 | fw_state = instance->instancet->read_fw_status_reg(instance->reg_set) & MFI_STATE_MASK; | |
2535 | ||
2536 | if ((!outstanding && (fw_state == MFI_STATE_OPERATIONAL))) | |
2537 | goto no_outstanding; | |
2538 | ||
2539 | if (instance->disableOnlineCtrlReset) | |
2540 | goto kill_hba_and_failed; | |
707e09bd | 2541 | do { |
ccc7507d SS |
2542 | if ((fw_state == MFI_STATE_FAULT) || atomic_read(&instance->fw_outstanding)) { |
2543 | dev_info(&instance->pdev->dev, | |
2544 | "%s:%d waiting_for_outstanding: before issue OCR. FW state = 0x%x, oustanding 0x%x\n", | |
2545 | __func__, __LINE__, fw_state, atomic_read(&instance->fw_outstanding)); | |
2546 | if (i == 3) | |
2547 | goto kill_hba_and_failed; | |
707e09bd | 2548 | megasas_do_ocr(instance); |
707e09bd | 2549 | |
ccc7507d SS |
2550 | if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { |
2551 | dev_info(&instance->pdev->dev, "%s:%d OCR failed and HBA is killed.\n", | |
2552 | __func__, __LINE__); | |
2553 | return FAILED; | |
2554 | } | |
2555 | dev_info(&instance->pdev->dev, "%s:%d waiting_for_outstanding: after issue OCR.\n", | |
2556 | __func__, __LINE__); | |
2557 | ||
2558 | for (sl = 0; sl < 10; sl++) | |
2559 | msleep(500); | |
2560 | ||
2561 | outstanding = atomic_read(&instance->fw_outstanding); | |
2562 | ||
2563 | fw_state = instance->instancet->read_fw_status_reg(instance->reg_set) & MFI_STATE_MASK; | |
2564 | if ((!outstanding && (fw_state == MFI_STATE_OPERATIONAL))) | |
2565 | goto no_outstanding; | |
707e09bd YB |
2566 | } |
2567 | i++; | |
2568 | } while (i <= 3); | |
2569 | ||
ccc7507d | 2570 | no_outstanding: |
707e09bd | 2571 | |
ccc7507d SS |
2572 | dev_info(&instance->pdev->dev, "%s:%d no more pending commands remain after reset handling.\n", |
2573 | __func__, __LINE__); | |
2574 | return SUCCESS; | |
707e09bd | 2575 | |
ccc7507d | 2576 | kill_hba_and_failed: |
c4a3e0a5 | 2577 | |
ccc7507d SS |
2578 | /* Reset not supported, kill adapter */ |
2579 | dev_info(&instance->pdev->dev, "%s:%d killing adapter scsi%d" | |
2580 | " disableOnlineCtrlReset %d fw_outstanding %d \n", | |
2581 | __func__, __LINE__, instance->host->host_no, instance->disableOnlineCtrlReset, | |
2582 | atomic_read(&instance->fw_outstanding)); | |
2583 | megasas_dump_pending_frames(instance); | |
2584 | megaraid_sas_kill_hba(instance); | |
39a98554 | 2585 | |
ccc7507d | 2586 | return FAILED; |
c4a3e0a5 BS |
2587 | } |
2588 | ||
2589 | /** | |
2590 | * megasas_generic_reset - Generic reset routine | |
2591 | * @scmd: Mid-layer SCSI command | |
2592 | * | |
2593 | * This routine implements a generic reset handler for device, bus and host | |
2594 | * reset requests. Device, bus and host specific reset handlers can use this | |
2595 | * function after they do their specific tasks. | |
2596 | */ | |
2597 | static int megasas_generic_reset(struct scsi_cmnd *scmd) | |
2598 | { | |
2599 | int ret_val; | |
2600 | struct megasas_instance *instance; | |
2601 | ||
2602 | instance = (struct megasas_instance *)scmd->device->host->hostdata; | |
2603 | ||
5cd049a5 CH |
2604 | scmd_printk(KERN_NOTICE, scmd, "megasas: RESET cmd=%x retries=%x\n", |
2605 | scmd->cmnd[0], scmd->retries); | |
c4a3e0a5 | 2606 | |
8a01a41d | 2607 | if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { |
1be18254 | 2608 | dev_err(&instance->pdev->dev, "cannot recover from previous reset failures\n"); |
c4a3e0a5 BS |
2609 | return FAILED; |
2610 | } | |
2611 | ||
c4a3e0a5 | 2612 | ret_val = megasas_wait_for_outstanding(instance); |
c4a3e0a5 | 2613 | if (ret_val == SUCCESS) |
1be18254 | 2614 | dev_notice(&instance->pdev->dev, "reset successful\n"); |
c4a3e0a5 | 2615 | else |
1be18254 | 2616 | dev_err(&instance->pdev->dev, "failed to do reset\n"); |
c4a3e0a5 | 2617 | |
c4a3e0a5 BS |
2618 | return ret_val; |
2619 | } | |
2620 | ||
05e9ebbe SP |
2621 | /** |
2622 | * megasas_reset_timer - quiesce the adapter if required | |
2623 | * @scmd: scsi cmnd | |
2624 | * | |
2625 | * Sets the FW busy flag and reduces the host->can_queue if the | |
2626 | * cmd has not been completed within the timeout period. | |
2627 | */ | |
2628 | static enum | |
242f9dcb | 2629 | blk_eh_timer_return megasas_reset_timer(struct scsi_cmnd *scmd) |
05e9ebbe | 2630 | { |
05e9ebbe SP |
2631 | struct megasas_instance *instance; |
2632 | unsigned long flags; | |
2633 | ||
2634 | if (time_after(jiffies, scmd->jiffies_at_alloc + | |
e3d178ca | 2635 | (scmd_timeout * 2) * HZ)) { |
242f9dcb | 2636 | return BLK_EH_NOT_HANDLED; |
05e9ebbe SP |
2637 | } |
2638 | ||
f575c5d3 | 2639 | instance = (struct megasas_instance *)scmd->device->host->hostdata; |
05e9ebbe SP |
2640 | if (!(instance->flag & MEGASAS_FW_BUSY)) { |
2641 | /* FW is busy, throttle IO */ | |
2642 | spin_lock_irqsave(instance->host->host_lock, flags); | |
2643 | ||
c5daa6a9 | 2644 | instance->host->can_queue = instance->throttlequeuedepth; |
05e9ebbe SP |
2645 | instance->last_time = jiffies; |
2646 | instance->flag |= MEGASAS_FW_BUSY; | |
2647 | ||
2648 | spin_unlock_irqrestore(instance->host->host_lock, flags); | |
2649 | } | |
242f9dcb | 2650 | return BLK_EH_RESET_TIMER; |
05e9ebbe SP |
2651 | } |
2652 | ||
c4a3e0a5 BS |
2653 | /** |
2654 | * megasas_reset_bus_host - Bus & host reset handler entry point | |
2655 | */ | |
2656 | static int megasas_reset_bus_host(struct scsi_cmnd *scmd) | |
2657 | { | |
2658 | int ret; | |
9c915a8c | 2659 | struct megasas_instance *instance; |
da0dc9fb | 2660 | |
9c915a8c | 2661 | instance = (struct megasas_instance *)scmd->device->host->hostdata; |
c4a3e0a5 BS |
2662 | |
2663 | /* | |
80682fa9 | 2664 | * First wait for all commands to complete |
c4a3e0a5 | 2665 | */ |
5a8cb85b | 2666 | if (instance->ctrl_context) |
229fe47c | 2667 | ret = megasas_reset_fusion(scmd->device->host, 1); |
9c915a8c | 2668 | else |
2669 | ret = megasas_generic_reset(scmd); | |
c4a3e0a5 BS |
2670 | |
2671 | return ret; | |
2672 | } | |
2673 | ||
bd23d4ab SS |
2674 | /** |
2675 | * megasas_task_abort - Issues task abort request to firmware | |
2676 | * (supported only for fusion adapters) | |
2677 | * @scmd: SCSI command pointer | |
2678 | */ | |
2679 | static int megasas_task_abort(struct scsi_cmnd *scmd) | |
2680 | { | |
2681 | int ret; | |
2682 | struct megasas_instance *instance; | |
2683 | ||
2684 | instance = (struct megasas_instance *)scmd->device->host->hostdata; | |
2685 | ||
2686 | if (instance->ctrl_context) | |
2687 | ret = megasas_task_abort_fusion(scmd); | |
2688 | else { | |
2689 | sdev_printk(KERN_NOTICE, scmd->device, "TASK ABORT not supported\n"); | |
2690 | ret = FAILED; | |
2691 | } | |
2692 | ||
2693 | return ret; | |
2694 | } | |
2695 | ||
2696 | /** | |
2697 | * megasas_reset_target: Issues target reset request to firmware | |
2698 | * (supported only for fusion adapters) | |
2699 | * @scmd: SCSI command pointer | |
2700 | */ | |
2701 | static int megasas_reset_target(struct scsi_cmnd *scmd) | |
2702 | { | |
2703 | int ret; | |
2704 | struct megasas_instance *instance; | |
2705 | ||
2706 | instance = (struct megasas_instance *)scmd->device->host->hostdata; | |
2707 | ||
2708 | if (instance->ctrl_context) | |
2709 | ret = megasas_reset_target_fusion(scmd); | |
2710 | else { | |
2711 | sdev_printk(KERN_NOTICE, scmd->device, "TARGET RESET not supported\n"); | |
2712 | ret = FAILED; | |
2713 | } | |
2714 | ||
2715 | return ret; | |
2716 | } | |
2717 | ||
cf62a0a5 SP |
2718 | /** |
2719 | * megasas_bios_param - Returns disk geometry for a disk | |
da0dc9fb | 2720 | * @sdev: device handle |
cf62a0a5 SP |
2721 | * @bdev: block device |
2722 | * @capacity: drive capacity | |
2723 | * @geom: geometry parameters | |
2724 | */ | |
2725 | static int | |
2726 | megasas_bios_param(struct scsi_device *sdev, struct block_device *bdev, | |
2727 | sector_t capacity, int geom[]) | |
2728 | { | |
2729 | int heads; | |
2730 | int sectors; | |
2731 | sector_t cylinders; | |
2732 | unsigned long tmp; | |
da0dc9fb | 2733 | |
cf62a0a5 SP |
2734 | /* Default heads (64) & sectors (32) */ |
2735 | heads = 64; | |
2736 | sectors = 32; | |
2737 | ||
2738 | tmp = heads * sectors; | |
2739 | cylinders = capacity; | |
2740 | ||
2741 | sector_div(cylinders, tmp); | |
2742 | ||
2743 | /* | |
2744 | * Handle extended translation size for logical drives > 1Gb | |
2745 | */ | |
2746 | ||
2747 | if (capacity >= 0x200000) { | |
2748 | heads = 255; | |
2749 | sectors = 63; | |
2750 | tmp = heads*sectors; | |
2751 | cylinders = capacity; | |
2752 | sector_div(cylinders, tmp); | |
2753 | } | |
2754 | ||
2755 | geom[0] = heads; | |
2756 | geom[1] = sectors; | |
2757 | geom[2] = cylinders; | |
2758 | ||
2759 | return 0; | |
2760 | } | |
2761 | ||
7e8a75f4 YB |
2762 | static void megasas_aen_polling(struct work_struct *work); |
2763 | ||
c4a3e0a5 BS |
2764 | /** |
2765 | * megasas_service_aen - Processes an event notification | |
2766 | * @instance: Adapter soft state | |
2767 | * @cmd: AEN command completed by the ISR | |
2768 | * | |
2769 | * For AEN, driver sends a command down to FW that is held by the FW till an | |
2770 | * event occurs. When an event of interest occurs, FW completes the command | |
2771 | * that it was previously holding. | |
2772 | * | |
2773 | * This routines sends SIGIO signal to processes that have registered with the | |
2774 | * driver for AEN. | |
2775 | */ | |
2776 | static void | |
2777 | megasas_service_aen(struct megasas_instance *instance, struct megasas_cmd *cmd) | |
2778 | { | |
c3518837 | 2779 | unsigned long flags; |
da0dc9fb | 2780 | |
c4a3e0a5 BS |
2781 | /* |
2782 | * Don't signal app if it is just an aborted previously registered aen | |
2783 | */ | |
c3518837 YB |
2784 | if ((!cmd->abort_aen) && (instance->unload == 0)) { |
2785 | spin_lock_irqsave(&poll_aen_lock, flags); | |
2786 | megasas_poll_wait_aen = 1; | |
2787 | spin_unlock_irqrestore(&poll_aen_lock, flags); | |
2788 | wake_up(&megasas_poll_wait); | |
c4a3e0a5 | 2789 | kill_fasync(&megasas_async_queue, SIGIO, POLL_IN); |
c3518837 | 2790 | } |
c4a3e0a5 BS |
2791 | else |
2792 | cmd->abort_aen = 0; | |
2793 | ||
2794 | instance->aen_cmd = NULL; | |
90dc9d98 | 2795 | |
4026e9aa | 2796 | megasas_return_cmd(instance, cmd); |
7e8a75f4 | 2797 | |
39a98554 | 2798 | if ((instance->unload == 0) && |
2799 | ((instance->issuepend_done == 1))) { | |
7e8a75f4 | 2800 | struct megasas_aen_event *ev; |
da0dc9fb | 2801 | |
7e8a75f4 YB |
2802 | ev = kzalloc(sizeof(*ev), GFP_ATOMIC); |
2803 | if (!ev) { | |
1be18254 | 2804 | dev_err(&instance->pdev->dev, "megasas_service_aen: out of memory\n"); |
7e8a75f4 YB |
2805 | } else { |
2806 | ev->instance = instance; | |
2807 | instance->ev = ev; | |
c1d390d8 XF |
2808 | INIT_DELAYED_WORK(&ev->hotplug_work, |
2809 | megasas_aen_polling); | |
2810 | schedule_delayed_work(&ev->hotplug_work, 0); | |
7e8a75f4 YB |
2811 | } |
2812 | } | |
c4a3e0a5 BS |
2813 | } |
2814 | ||
fc62b3fc SS |
2815 | static ssize_t |
2816 | megasas_fw_crash_buffer_store(struct device *cdev, | |
2817 | struct device_attribute *attr, const char *buf, size_t count) | |
2818 | { | |
2819 | struct Scsi_Host *shost = class_to_shost(cdev); | |
2820 | struct megasas_instance *instance = | |
2821 | (struct megasas_instance *) shost->hostdata; | |
2822 | int val = 0; | |
2823 | unsigned long flags; | |
2824 | ||
2825 | if (kstrtoint(buf, 0, &val) != 0) | |
2826 | return -EINVAL; | |
2827 | ||
2828 | spin_lock_irqsave(&instance->crashdump_lock, flags); | |
2829 | instance->fw_crash_buffer_offset = val; | |
2830 | spin_unlock_irqrestore(&instance->crashdump_lock, flags); | |
2831 | return strlen(buf); | |
2832 | } | |
2833 | ||
2834 | static ssize_t | |
2835 | megasas_fw_crash_buffer_show(struct device *cdev, | |
2836 | struct device_attribute *attr, char *buf) | |
2837 | { | |
2838 | struct Scsi_Host *shost = class_to_shost(cdev); | |
2839 | struct megasas_instance *instance = | |
2840 | (struct megasas_instance *) shost->hostdata; | |
2841 | u32 size; | |
2842 | unsigned long buff_addr; | |
2843 | unsigned long dmachunk = CRASH_DMA_BUF_SIZE; | |
2844 | unsigned long src_addr; | |
2845 | unsigned long flags; | |
2846 | u32 buff_offset; | |
2847 | ||
2848 | spin_lock_irqsave(&instance->crashdump_lock, flags); | |
2849 | buff_offset = instance->fw_crash_buffer_offset; | |
2850 | if (!instance->crash_dump_buf && | |
2851 | !((instance->fw_crash_state == AVAILABLE) || | |
2852 | (instance->fw_crash_state == COPYING))) { | |
2853 | dev_err(&instance->pdev->dev, | |
2854 | "Firmware crash dump is not available\n"); | |
2855 | spin_unlock_irqrestore(&instance->crashdump_lock, flags); | |
2856 | return -EINVAL; | |
2857 | } | |
2858 | ||
2859 | buff_addr = (unsigned long) buf; | |
2860 | ||
da0dc9fb | 2861 | if (buff_offset > (instance->fw_crash_buffer_size * dmachunk)) { |
fc62b3fc SS |
2862 | dev_err(&instance->pdev->dev, |
2863 | "Firmware crash dump offset is out of range\n"); | |
2864 | spin_unlock_irqrestore(&instance->crashdump_lock, flags); | |
2865 | return 0; | |
2866 | } | |
2867 | ||
2868 | size = (instance->fw_crash_buffer_size * dmachunk) - buff_offset; | |
2869 | size = (size >= PAGE_SIZE) ? (PAGE_SIZE - 1) : size; | |
2870 | ||
2871 | src_addr = (unsigned long)instance->crash_buf[buff_offset / dmachunk] + | |
2872 | (buff_offset % dmachunk); | |
da0dc9fb | 2873 | memcpy(buf, (void *)src_addr, size); |
fc62b3fc SS |
2874 | spin_unlock_irqrestore(&instance->crashdump_lock, flags); |
2875 | ||
2876 | return size; | |
2877 | } | |
2878 | ||
2879 | static ssize_t | |
2880 | megasas_fw_crash_buffer_size_show(struct device *cdev, | |
2881 | struct device_attribute *attr, char *buf) | |
2882 | { | |
2883 | struct Scsi_Host *shost = class_to_shost(cdev); | |
2884 | struct megasas_instance *instance = | |
2885 | (struct megasas_instance *) shost->hostdata; | |
2886 | ||
2887 | return snprintf(buf, PAGE_SIZE, "%ld\n", (unsigned long) | |
2888 | ((instance->fw_crash_buffer_size) * 1024 * 1024)/PAGE_SIZE); | |
2889 | } | |
2890 | ||
2891 | static ssize_t | |
2892 | megasas_fw_crash_state_store(struct device *cdev, | |
2893 | struct device_attribute *attr, const char *buf, size_t count) | |
2894 | { | |
2895 | struct Scsi_Host *shost = class_to_shost(cdev); | |
2896 | struct megasas_instance *instance = | |
2897 | (struct megasas_instance *) shost->hostdata; | |
2898 | int val = 0; | |
2899 | unsigned long flags; | |
2900 | ||
2901 | if (kstrtoint(buf, 0, &val) != 0) | |
2902 | return -EINVAL; | |
2903 | ||
2904 | if ((val <= AVAILABLE || val > COPY_ERROR)) { | |
2905 | dev_err(&instance->pdev->dev, "application updates invalid " | |
2906 | "firmware crash state\n"); | |
2907 | return -EINVAL; | |
2908 | } | |
2909 | ||
2910 | instance->fw_crash_state = val; | |
2911 | ||
2912 | if ((val == COPIED) || (val == COPY_ERROR)) { | |
2913 | spin_lock_irqsave(&instance->crashdump_lock, flags); | |
2914 | megasas_free_host_crash_buffer(instance); | |
2915 | spin_unlock_irqrestore(&instance->crashdump_lock, flags); | |
2916 | if (val == COPY_ERROR) | |
2917 | dev_info(&instance->pdev->dev, "application failed to " | |
2918 | "copy Firmware crash dump\n"); | |
2919 | else | |
2920 | dev_info(&instance->pdev->dev, "Firmware crash dump " | |
2921 | "copied successfully\n"); | |
2922 | } | |
2923 | return strlen(buf); | |
2924 | } | |
2925 | ||
2926 | static ssize_t | |
2927 | megasas_fw_crash_state_show(struct device *cdev, | |
2928 | struct device_attribute *attr, char *buf) | |
2929 | { | |
2930 | struct Scsi_Host *shost = class_to_shost(cdev); | |
2931 | struct megasas_instance *instance = | |
2932 | (struct megasas_instance *) shost->hostdata; | |
da0dc9fb | 2933 | |
fc62b3fc SS |
2934 | return snprintf(buf, PAGE_SIZE, "%d\n", instance->fw_crash_state); |
2935 | } | |
2936 | ||
2937 | static ssize_t | |
2938 | megasas_page_size_show(struct device *cdev, | |
2939 | struct device_attribute *attr, char *buf) | |
2940 | { | |
2941 | return snprintf(buf, PAGE_SIZE, "%ld\n", (unsigned long)PAGE_SIZE - 1); | |
2942 | } | |
2943 | ||
308ec459 SS |
2944 | static ssize_t |
2945 | megasas_ldio_outstanding_show(struct device *cdev, struct device_attribute *attr, | |
2946 | char *buf) | |
2947 | { | |
2948 | struct Scsi_Host *shost = class_to_shost(cdev); | |
2949 | struct megasas_instance *instance = (struct megasas_instance *)shost->hostdata; | |
2950 | ||
2951 | return snprintf(buf, PAGE_SIZE, "%d\n", atomic_read(&instance->ldio_outstanding)); | |
2952 | } | |
2953 | ||
fc62b3fc SS |
2954 | static DEVICE_ATTR(fw_crash_buffer, S_IRUGO | S_IWUSR, |
2955 | megasas_fw_crash_buffer_show, megasas_fw_crash_buffer_store); | |
2956 | static DEVICE_ATTR(fw_crash_buffer_size, S_IRUGO, | |
2957 | megasas_fw_crash_buffer_size_show, NULL); | |
2958 | static DEVICE_ATTR(fw_crash_state, S_IRUGO | S_IWUSR, | |
2959 | megasas_fw_crash_state_show, megasas_fw_crash_state_store); | |
2960 | static DEVICE_ATTR(page_size, S_IRUGO, | |
2961 | megasas_page_size_show, NULL); | |
308ec459 SS |
2962 | static DEVICE_ATTR(ldio_outstanding, S_IRUGO, |
2963 | megasas_ldio_outstanding_show, NULL); | |
fc62b3fc SS |
2964 | |
2965 | struct device_attribute *megaraid_host_attrs[] = { | |
2966 | &dev_attr_fw_crash_buffer_size, | |
2967 | &dev_attr_fw_crash_buffer, | |
2968 | &dev_attr_fw_crash_state, | |
2969 | &dev_attr_page_size, | |
308ec459 | 2970 | &dev_attr_ldio_outstanding, |
fc62b3fc SS |
2971 | NULL, |
2972 | }; | |
2973 | ||
c4a3e0a5 BS |
2974 | /* |
2975 | * Scsi host template for megaraid_sas driver | |
2976 | */ | |
2977 | static struct scsi_host_template megasas_template = { | |
2978 | ||
2979 | .module = THIS_MODULE, | |
43cd7fe4 | 2980 | .name = "Avago SAS based MegaRAID driver", |
c4a3e0a5 | 2981 | .proc_name = "megaraid_sas", |
147aab6a | 2982 | .slave_configure = megasas_slave_configure, |
044833b5 | 2983 | .slave_alloc = megasas_slave_alloc, |
18365b13 | 2984 | .slave_destroy = megasas_slave_destroy, |
c4a3e0a5 | 2985 | .queuecommand = megasas_queue_command, |
bd23d4ab SS |
2986 | .eh_target_reset_handler = megasas_reset_target, |
2987 | .eh_abort_handler = megasas_task_abort, | |
c4a3e0a5 | 2988 | .eh_host_reset_handler = megasas_reset_bus_host, |
05e9ebbe | 2989 | .eh_timed_out = megasas_reset_timer, |
fc62b3fc | 2990 | .shost_attrs = megaraid_host_attrs, |
cf62a0a5 | 2991 | .bios_param = megasas_bios_param, |
c4a3e0a5 | 2992 | .use_clustering = ENABLE_CLUSTERING, |
db5ed4df | 2993 | .change_queue_depth = scsi_change_queue_depth, |
54b2b50c | 2994 | .no_write_same = 1, |
c4a3e0a5 BS |
2995 | }; |
2996 | ||
2997 | /** | |
2998 | * megasas_complete_int_cmd - Completes an internal command | |
2999 | * @instance: Adapter soft state | |
3000 | * @cmd: Command to be completed | |
3001 | * | |
3002 | * The megasas_issue_blocked_cmd() function waits for a command to complete | |
3003 | * after it issues a command. This function wakes up that waiting routine by | |
3004 | * calling wake_up() on the wait queue. | |
3005 | */ | |
3006 | static void | |
3007 | megasas_complete_int_cmd(struct megasas_instance *instance, | |
3008 | struct megasas_cmd *cmd) | |
3009 | { | |
2be2a988 | 3010 | cmd->cmd_status_drv = cmd->frame->io.cmd_status; |
c4a3e0a5 BS |
3011 | wake_up(&instance->int_cmd_wait_q); |
3012 | } | |
3013 | ||
3014 | /** | |
3015 | * megasas_complete_abort - Completes aborting a command | |
3016 | * @instance: Adapter soft state | |
3017 | * @cmd: Cmd that was issued to abort another cmd | |
3018 | * | |
0d49016b | 3019 | * The megasas_issue_blocked_abort_cmd() function waits on abort_cmd_wait_q |
3020 | * after it issues an abort on a previously issued command. This function | |
c4a3e0a5 BS |
3021 | * wakes up all functions waiting on the same wait queue. |
3022 | */ | |
3023 | static void | |
3024 | megasas_complete_abort(struct megasas_instance *instance, | |
3025 | struct megasas_cmd *cmd) | |
3026 | { | |
3027 | if (cmd->sync_cmd) { | |
3028 | cmd->sync_cmd = 0; | |
2be2a988 | 3029 | cmd->cmd_status_drv = 0; |
c4a3e0a5 BS |
3030 | wake_up(&instance->abort_cmd_wait_q); |
3031 | } | |
c4a3e0a5 BS |
3032 | } |
3033 | ||
c4a3e0a5 BS |
3034 | /** |
3035 | * megasas_complete_cmd - Completes a command | |
3036 | * @instance: Adapter soft state | |
3037 | * @cmd: Command to be completed | |
0d49016b | 3038 | * @alt_status: If non-zero, use this value as status to |
da0dc9fb BH |
3039 | * SCSI mid-layer instead of the value returned |
3040 | * by the FW. This should be used if caller wants | |
3041 | * an alternate status (as in the case of aborted | |
3042 | * commands) | |
c4a3e0a5 | 3043 | */ |
9c915a8c | 3044 | void |
c4a3e0a5 BS |
3045 | megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd, |
3046 | u8 alt_status) | |
3047 | { | |
3048 | int exception = 0; | |
3049 | struct megasas_header *hdr = &cmd->frame->hdr; | |
c3518837 | 3050 | unsigned long flags; |
9c915a8c | 3051 | struct fusion_context *fusion = instance->ctrl_context; |
3761cb4c | 3052 | u32 opcode, status; |
c4a3e0a5 | 3053 | |
39a98554 | 3054 | /* flag for the retry reset */ |
3055 | cmd->retry_for_fw_reset = 0; | |
3056 | ||
05e9ebbe SP |
3057 | if (cmd->scmd) |
3058 | cmd->scmd->SCp.ptr = NULL; | |
c4a3e0a5 BS |
3059 | |
3060 | switch (hdr->cmd) { | |
e5f93a36 | 3061 | case MFI_CMD_INVALID: |
3062 | /* Some older 1068 controller FW may keep a pended | |
3063 | MR_DCMD_CTRL_EVENT_GET_INFO left over from the main kernel | |
3064 | when booting the kdump kernel. Ignore this command to | |
3065 | prevent a kernel panic on shutdown of the kdump kernel. */ | |
1be18254 BH |
3066 | dev_warn(&instance->pdev->dev, "MFI_CMD_INVALID command " |
3067 | "completed\n"); | |
3068 | dev_warn(&instance->pdev->dev, "If you have a controller " | |
3069 | "other than PERC5, please upgrade your firmware\n"); | |
e5f93a36 | 3070 | break; |
c4a3e0a5 BS |
3071 | case MFI_CMD_PD_SCSI_IO: |
3072 | case MFI_CMD_LD_SCSI_IO: | |
3073 | ||
3074 | /* | |
3075 | * MFI_CMD_PD_SCSI_IO and MFI_CMD_LD_SCSI_IO could have been | |
3076 | * issued either through an IO path or an IOCTL path. If it | |
3077 | * was via IOCTL, we will send it to internal completion. | |
3078 | */ | |
3079 | if (cmd->sync_cmd) { | |
3080 | cmd->sync_cmd = 0; | |
3081 | megasas_complete_int_cmd(instance, cmd); | |
3082 | break; | |
3083 | } | |
3084 | ||
c4a3e0a5 BS |
3085 | case MFI_CMD_LD_READ: |
3086 | case MFI_CMD_LD_WRITE: | |
3087 | ||
3088 | if (alt_status) { | |
3089 | cmd->scmd->result = alt_status << 16; | |
3090 | exception = 1; | |
3091 | } | |
3092 | ||
3093 | if (exception) { | |
3094 | ||
e4a082c7 | 3095 | atomic_dec(&instance->fw_outstanding); |
c4a3e0a5 | 3096 | |
155d98f0 | 3097 | scsi_dma_unmap(cmd->scmd); |
c4a3e0a5 BS |
3098 | cmd->scmd->scsi_done(cmd->scmd); |
3099 | megasas_return_cmd(instance, cmd); | |
3100 | ||
3101 | break; | |
3102 | } | |
3103 | ||
3104 | switch (hdr->cmd_status) { | |
3105 | ||
3106 | case MFI_STAT_OK: | |
3107 | cmd->scmd->result = DID_OK << 16; | |
3108 | break; | |
3109 | ||
3110 | case MFI_STAT_SCSI_IO_FAILED: | |
3111 | case MFI_STAT_LD_INIT_IN_PROGRESS: | |
3112 | cmd->scmd->result = | |
3113 | (DID_ERROR << 16) | hdr->scsi_status; | |
3114 | break; | |
3115 | ||
3116 | case MFI_STAT_SCSI_DONE_WITH_ERROR: | |
3117 | ||
3118 | cmd->scmd->result = (DID_OK << 16) | hdr->scsi_status; | |
3119 | ||
3120 | if (hdr->scsi_status == SAM_STAT_CHECK_CONDITION) { | |
3121 | memset(cmd->scmd->sense_buffer, 0, | |
3122 | SCSI_SENSE_BUFFERSIZE); | |
3123 | memcpy(cmd->scmd->sense_buffer, cmd->sense, | |
3124 | hdr->sense_len); | |
3125 | ||
3126 | cmd->scmd->result |= DRIVER_SENSE << 24; | |
3127 | } | |
3128 | ||
3129 | break; | |
3130 | ||
3131 | case MFI_STAT_LD_OFFLINE: | |
3132 | case MFI_STAT_DEVICE_NOT_FOUND: | |
3133 | cmd->scmd->result = DID_BAD_TARGET << 16; | |
3134 | break; | |
3135 | ||
3136 | default: | |
1be18254 | 3137 | dev_printk(KERN_DEBUG, &instance->pdev->dev, "MFI FW status %#x\n", |
c4a3e0a5 BS |
3138 | hdr->cmd_status); |
3139 | cmd->scmd->result = DID_ERROR << 16; | |
3140 | break; | |
3141 | } | |
3142 | ||
e4a082c7 | 3143 | atomic_dec(&instance->fw_outstanding); |
c4a3e0a5 | 3144 | |
155d98f0 | 3145 | scsi_dma_unmap(cmd->scmd); |
c4a3e0a5 BS |
3146 | cmd->scmd->scsi_done(cmd->scmd); |
3147 | megasas_return_cmd(instance, cmd); | |
3148 | ||
3149 | break; | |
3150 | ||
3151 | case MFI_CMD_SMP: | |
3152 | case MFI_CMD_STP: | |
3153 | case MFI_CMD_DCMD: | |
94cd65dd | 3154 | opcode = le32_to_cpu(cmd->frame->dcmd.opcode); |
9c915a8c | 3155 | /* Check for LD map update */ |
94cd65dd SS |
3156 | if ((opcode == MR_DCMD_LD_MAP_GET_INFO) |
3157 | && (cmd->frame->dcmd.mbox.b[1] == 1)) { | |
bc93d425 | 3158 | fusion->fast_path_io = 0; |
9c915a8c | 3159 | spin_lock_irqsave(instance->host->host_lock, flags); |
3761cb4c | 3160 | instance->map_update_cmd = NULL; |
9c915a8c | 3161 | if (cmd->frame->hdr.cmd_status != 0) { |
3162 | if (cmd->frame->hdr.cmd_status != | |
3163 | MFI_STAT_NOT_FOUND) | |
1be18254 | 3164 | dev_warn(&instance->pdev->dev, "map syncfailed, status = 0x%x\n", |
9c915a8c | 3165 | cmd->frame->hdr.cmd_status); |
3166 | else { | |
4026e9aa | 3167 | megasas_return_cmd(instance, cmd); |
9c915a8c | 3168 | spin_unlock_irqrestore( |
3169 | instance->host->host_lock, | |
3170 | flags); | |
3171 | break; | |
3172 | } | |
3173 | } else | |
3174 | instance->map_id++; | |
4026e9aa | 3175 | megasas_return_cmd(instance, cmd); |
bc93d425 SS |
3176 | |
3177 | /* | |
3178 | * Set fast path IO to ZERO. | |
3179 | * Validate Map will set proper value. | |
3180 | * Meanwhile all IOs will go as LD IO. | |
3181 | */ | |
3182 | if (MR_ValidateMapInfo(instance)) | |
9c915a8c | 3183 | fusion->fast_path_io = 1; |
3184 | else | |
3185 | fusion->fast_path_io = 0; | |
3186 | megasas_sync_map_info(instance); | |
3187 | spin_unlock_irqrestore(instance->host->host_lock, | |
3188 | flags); | |
3189 | break; | |
3190 | } | |
94cd65dd SS |
3191 | if (opcode == MR_DCMD_CTRL_EVENT_GET_INFO || |
3192 | opcode == MR_DCMD_CTRL_EVENT_GET) { | |
c3518837 YB |
3193 | spin_lock_irqsave(&poll_aen_lock, flags); |
3194 | megasas_poll_wait_aen = 0; | |
3195 | spin_unlock_irqrestore(&poll_aen_lock, flags); | |
3196 | } | |
c4a3e0a5 | 3197 | |
3761cb4c | 3198 | /* FW has an updated PD sequence */ |
3199 | if ((opcode == MR_DCMD_SYSTEM_PD_MAP_GET_INFO) && | |
3200 | (cmd->frame->dcmd.mbox.b[0] == 1)) { | |
3201 | ||
3202 | spin_lock_irqsave(instance->host->host_lock, flags); | |
3203 | status = cmd->frame->hdr.cmd_status; | |
3204 | instance->jbod_seq_cmd = NULL; | |
3205 | megasas_return_cmd(instance, cmd); | |
3206 | ||
3207 | if (status == MFI_STAT_OK) { | |
3208 | instance->pd_seq_map_id++; | |
3209 | /* Re-register a pd sync seq num cmd */ | |
3210 | if (megasas_sync_pd_seq_num(instance, true)) | |
3211 | instance->use_seqnum_jbod_fp = false; | |
3212 | } else | |
3213 | instance->use_seqnum_jbod_fp = false; | |
3214 | ||
3215 | spin_unlock_irqrestore(instance->host->host_lock, flags); | |
3216 | break; | |
3217 | } | |
3218 | ||
c4a3e0a5 BS |
3219 | /* |
3220 | * See if got an event notification | |
3221 | */ | |
94cd65dd | 3222 | if (opcode == MR_DCMD_CTRL_EVENT_WAIT) |
c4a3e0a5 BS |
3223 | megasas_service_aen(instance, cmd); |
3224 | else | |
3225 | megasas_complete_int_cmd(instance, cmd); | |
3226 | ||
3227 | break; | |
3228 | ||
3229 | case MFI_CMD_ABORT: | |
3230 | /* | |
3231 | * Cmd issued to abort another cmd returned | |
3232 | */ | |
3233 | megasas_complete_abort(instance, cmd); | |
3234 | break; | |
3235 | ||
3236 | default: | |
1be18254 | 3237 | dev_info(&instance->pdev->dev, "Unknown command completed! [0x%X]\n", |
c4a3e0a5 BS |
3238 | hdr->cmd); |
3239 | break; | |
3240 | } | |
3241 | } | |
3242 | ||
39a98554 | 3243 | /** |
3244 | * megasas_issue_pending_cmds_again - issue all pending cmds | |
da0dc9fb | 3245 | * in FW again because of the fw reset |
39a98554 | 3246 | * @instance: Adapter soft state |
3247 | */ | |
3248 | static inline void | |
3249 | megasas_issue_pending_cmds_again(struct megasas_instance *instance) | |
3250 | { | |
3251 | struct megasas_cmd *cmd; | |
3252 | struct list_head clist_local; | |
3253 | union megasas_evt_class_locale class_locale; | |
3254 | unsigned long flags; | |
3255 | u32 seq_num; | |
3256 | ||
3257 | INIT_LIST_HEAD(&clist_local); | |
3258 | spin_lock_irqsave(&instance->hba_lock, flags); | |
3259 | list_splice_init(&instance->internal_reset_pending_q, &clist_local); | |
3260 | spin_unlock_irqrestore(&instance->hba_lock, flags); | |
3261 | ||
3262 | while (!list_empty(&clist_local)) { | |
da0dc9fb | 3263 | cmd = list_entry((&clist_local)->next, |
39a98554 | 3264 | struct megasas_cmd, list); |
3265 | list_del_init(&cmd->list); | |
3266 | ||
3267 | if (cmd->sync_cmd || cmd->scmd) { | |
1be18254 BH |
3268 | dev_notice(&instance->pdev->dev, "command %p, %p:%d" |
3269 | "detected to be pending while HBA reset\n", | |
39a98554 | 3270 | cmd, cmd->scmd, cmd->sync_cmd); |
3271 | ||
3272 | cmd->retry_for_fw_reset++; | |
3273 | ||
3274 | if (cmd->retry_for_fw_reset == 3) { | |
1be18254 | 3275 | dev_notice(&instance->pdev->dev, "cmd %p, %p:%d" |
39a98554 | 3276 | "was tried multiple times during reset." |
3277 | "Shutting down the HBA\n", | |
3278 | cmd, cmd->scmd, cmd->sync_cmd); | |
c8dd61ef SS |
3279 | instance->instancet->disable_intr(instance); |
3280 | atomic_set(&instance->fw_reset_no_pci_access, 1); | |
39a98554 | 3281 | megaraid_sas_kill_hba(instance); |
39a98554 | 3282 | return; |
3283 | } | |
3284 | } | |
3285 | ||
3286 | if (cmd->sync_cmd == 1) { | |
3287 | if (cmd->scmd) { | |
1be18254 | 3288 | dev_notice(&instance->pdev->dev, "unexpected" |
39a98554 | 3289 | "cmd attached to internal command!\n"); |
3290 | } | |
1be18254 | 3291 | dev_notice(&instance->pdev->dev, "%p synchronous cmd" |
39a98554 | 3292 | "on the internal reset queue," |
3293 | "issue it again.\n", cmd); | |
2be2a988 | 3294 | cmd->cmd_status_drv = MFI_STAT_INVALID_STATUS; |
39a98554 | 3295 | instance->instancet->fire_cmd(instance, |
da0dc9fb | 3296 | cmd->frame_phys_addr, |
39a98554 | 3297 | 0, instance->reg_set); |
3298 | } else if (cmd->scmd) { | |
1be18254 | 3299 | dev_notice(&instance->pdev->dev, "%p scsi cmd [%02x]" |
39a98554 | 3300 | "detected on the internal queue, issue again.\n", |
5cd049a5 | 3301 | cmd, cmd->scmd->cmnd[0]); |
39a98554 | 3302 | |
3303 | atomic_inc(&instance->fw_outstanding); | |
3304 | instance->instancet->fire_cmd(instance, | |
3305 | cmd->frame_phys_addr, | |
3306 | cmd->frame_count-1, instance->reg_set); | |
3307 | } else { | |
1be18254 | 3308 | dev_notice(&instance->pdev->dev, "%p unexpected cmd on the" |
39a98554 | 3309 | "internal reset defer list while re-issue!!\n", |
3310 | cmd); | |
3311 | } | |
3312 | } | |
3313 | ||
3314 | if (instance->aen_cmd) { | |
1be18254 | 3315 | dev_notice(&instance->pdev->dev, "aen_cmd in def process\n"); |
39a98554 | 3316 | megasas_return_cmd(instance, instance->aen_cmd); |
3317 | ||
da0dc9fb | 3318 | instance->aen_cmd = NULL; |
39a98554 | 3319 | } |
3320 | ||
3321 | /* | |
da0dc9fb BH |
3322 | * Initiate AEN (Asynchronous Event Notification) |
3323 | */ | |
39a98554 | 3324 | seq_num = instance->last_seq_num; |
3325 | class_locale.members.reserved = 0; | |
3326 | class_locale.members.locale = MR_EVT_LOCALE_ALL; | |
3327 | class_locale.members.class = MR_EVT_CLASS_DEBUG; | |
3328 | ||
3329 | megasas_register_aen(instance, seq_num, class_locale.word); | |
3330 | } | |
3331 | ||
3332 | /** | |
3333 | * Move the internal reset pending commands to a deferred queue. | |
3334 | * | |
3335 | * We move the commands pending at internal reset time to a | |
3336 | * pending queue. This queue would be flushed after successful | |
3337 | * completion of the internal reset sequence. if the internal reset | |
3338 | * did not complete in time, the kernel reset handler would flush | |
3339 | * these commands. | |
3340 | **/ | |
3341 | static void | |
3342 | megasas_internal_reset_defer_cmds(struct megasas_instance *instance) | |
3343 | { | |
3344 | struct megasas_cmd *cmd; | |
3345 | int i; | |
3346 | u32 max_cmd = instance->max_fw_cmds; | |
3347 | u32 defer_index; | |
3348 | unsigned long flags; | |
3349 | ||
da0dc9fb | 3350 | defer_index = 0; |
90dc9d98 | 3351 | spin_lock_irqsave(&instance->mfi_pool_lock, flags); |
39a98554 | 3352 | for (i = 0; i < max_cmd; i++) { |
3353 | cmd = instance->cmd_list[i]; | |
3354 | if (cmd->sync_cmd == 1 || cmd->scmd) { | |
1be18254 | 3355 | dev_notice(&instance->pdev->dev, "moving cmd[%d]:%p:%d:%p" |
39a98554 | 3356 | "on the defer queue as internal\n", |
3357 | defer_index, cmd, cmd->sync_cmd, cmd->scmd); | |
3358 | ||
3359 | if (!list_empty(&cmd->list)) { | |
1be18254 | 3360 | dev_notice(&instance->pdev->dev, "ERROR while" |
39a98554 | 3361 | " moving this cmd:%p, %d %p, it was" |
3362 | "discovered on some list?\n", | |
3363 | cmd, cmd->sync_cmd, cmd->scmd); | |
3364 | ||
3365 | list_del_init(&cmd->list); | |
3366 | } | |
3367 | defer_index++; | |
3368 | list_add_tail(&cmd->list, | |
3369 | &instance->internal_reset_pending_q); | |
3370 | } | |
3371 | } | |
90dc9d98 | 3372 | spin_unlock_irqrestore(&instance->mfi_pool_lock, flags); |
39a98554 | 3373 | } |
3374 | ||
3375 | ||
3376 | static void | |
3377 | process_fw_state_change_wq(struct work_struct *work) | |
3378 | { | |
3379 | struct megasas_instance *instance = | |
3380 | container_of(work, struct megasas_instance, work_init); | |
3381 | u32 wait; | |
3382 | unsigned long flags; | |
3383 | ||
8a01a41d | 3384 | if (atomic_read(&instance->adprecovery) != MEGASAS_ADPRESET_SM_INFAULT) { |
1be18254 | 3385 | dev_notice(&instance->pdev->dev, "error, recovery st %x\n", |
8a01a41d | 3386 | atomic_read(&instance->adprecovery)); |
39a98554 | 3387 | return ; |
3388 | } | |
3389 | ||
8a01a41d | 3390 | if (atomic_read(&instance->adprecovery) == MEGASAS_ADPRESET_SM_INFAULT) { |
1be18254 | 3391 | dev_notice(&instance->pdev->dev, "FW detected to be in fault" |
39a98554 | 3392 | "state, restarting it...\n"); |
3393 | ||
d46a3ad6 | 3394 | instance->instancet->disable_intr(instance); |
39a98554 | 3395 | atomic_set(&instance->fw_outstanding, 0); |
3396 | ||
3397 | atomic_set(&instance->fw_reset_no_pci_access, 1); | |
3398 | instance->instancet->adp_reset(instance, instance->reg_set); | |
da0dc9fb | 3399 | atomic_set(&instance->fw_reset_no_pci_access, 0); |
39a98554 | 3400 | |
1be18254 | 3401 | dev_notice(&instance->pdev->dev, "FW restarted successfully," |
39a98554 | 3402 | "initiating next stage...\n"); |
3403 | ||
1be18254 | 3404 | dev_notice(&instance->pdev->dev, "HBA recovery state machine," |
39a98554 | 3405 | "state 2 starting...\n"); |
3406 | ||
da0dc9fb | 3407 | /* waiting for about 20 second before start the second init */ |
39a98554 | 3408 | for (wait = 0; wait < 30; wait++) { |
3409 | msleep(1000); | |
3410 | } | |
3411 | ||
058a8fac | 3412 | if (megasas_transition_to_ready(instance, 1)) { |
1be18254 | 3413 | dev_notice(&instance->pdev->dev, "adapter not ready\n"); |
39a98554 | 3414 | |
c8dd61ef | 3415 | atomic_set(&instance->fw_reset_no_pci_access, 1); |
39a98554 | 3416 | megaraid_sas_kill_hba(instance); |
39a98554 | 3417 | return ; |
3418 | } | |
3419 | ||
3420 | if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS1064R) || | |
3421 | (instance->pdev->device == PCI_DEVICE_ID_DELL_PERC5) || | |
3422 | (instance->pdev->device == PCI_DEVICE_ID_LSI_VERDE_ZCR) | |
3423 | ) { | |
3424 | *instance->consumer = *instance->producer; | |
3425 | } else { | |
3426 | *instance->consumer = 0; | |
3427 | *instance->producer = 0; | |
3428 | } | |
3429 | ||
3430 | megasas_issue_init_mfi(instance); | |
3431 | ||
3432 | spin_lock_irqsave(&instance->hba_lock, flags); | |
8a01a41d | 3433 | atomic_set(&instance->adprecovery, MEGASAS_HBA_OPERATIONAL); |
39a98554 | 3434 | spin_unlock_irqrestore(&instance->hba_lock, flags); |
d46a3ad6 | 3435 | instance->instancet->enable_intr(instance); |
39a98554 | 3436 | |
3437 | megasas_issue_pending_cmds_again(instance); | |
3438 | instance->issuepend_done = 1; | |
3439 | } | |
39a98554 | 3440 | } |
3441 | ||
c4a3e0a5 BS |
3442 | /** |
3443 | * megasas_deplete_reply_queue - Processes all completed commands | |
3444 | * @instance: Adapter soft state | |
3445 | * @alt_status: Alternate status to be returned to | |
da0dc9fb BH |
3446 | * SCSI mid-layer instead of the status |
3447 | * returned by the FW | |
39a98554 | 3448 | * Note: this must be called with hba lock held |
c4a3e0a5 | 3449 | */ |
858119e1 | 3450 | static int |
39a98554 | 3451 | megasas_deplete_reply_queue(struct megasas_instance *instance, |
3452 | u8 alt_status) | |
c4a3e0a5 | 3453 | { |
39a98554 | 3454 | u32 mfiStatus; |
3455 | u32 fw_state; | |
3456 | ||
3457 | if ((mfiStatus = instance->instancet->check_reset(instance, | |
3458 | instance->reg_set)) == 1) { | |
3459 | return IRQ_HANDLED; | |
3460 | } | |
3461 | ||
3462 | if ((mfiStatus = instance->instancet->clear_intr( | |
3463 | instance->reg_set) | |
3464 | ) == 0) { | |
e1419191 | 3465 | /* Hardware may not set outbound_intr_status in MSI-X mode */ |
c8e858fe | 3466 | if (!instance->msix_vectors) |
e1419191 | 3467 | return IRQ_NONE; |
39a98554 | 3468 | } |
3469 | ||
3470 | instance->mfiStatus = mfiStatus; | |
3471 | ||
3472 | if ((mfiStatus & MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE)) { | |
3473 | fw_state = instance->instancet->read_fw_status_reg( | |
3474 | instance->reg_set) & MFI_STATE_MASK; | |
3475 | ||
3476 | if (fw_state != MFI_STATE_FAULT) { | |
1be18254 | 3477 | dev_notice(&instance->pdev->dev, "fw state:%x\n", |
39a98554 | 3478 | fw_state); |
3479 | } | |
3480 | ||
3481 | if ((fw_state == MFI_STATE_FAULT) && | |
3482 | (instance->disableOnlineCtrlReset == 0)) { | |
1be18254 | 3483 | dev_notice(&instance->pdev->dev, "wait adp restart\n"); |
39a98554 | 3484 | |
3485 | if ((instance->pdev->device == | |
3486 | PCI_DEVICE_ID_LSI_SAS1064R) || | |
3487 | (instance->pdev->device == | |
3488 | PCI_DEVICE_ID_DELL_PERC5) || | |
3489 | (instance->pdev->device == | |
3490 | PCI_DEVICE_ID_LSI_VERDE_ZCR)) { | |
3491 | ||
3492 | *instance->consumer = | |
94cd65dd | 3493 | cpu_to_le32(MEGASAS_ADPRESET_INPROG_SIGN); |
39a98554 | 3494 | } |
3495 | ||
3496 | ||
d46a3ad6 | 3497 | instance->instancet->disable_intr(instance); |
8a01a41d | 3498 | atomic_set(&instance->adprecovery, MEGASAS_ADPRESET_SM_INFAULT); |
39a98554 | 3499 | instance->issuepend_done = 0; |
3500 | ||
3501 | atomic_set(&instance->fw_outstanding, 0); | |
3502 | megasas_internal_reset_defer_cmds(instance); | |
3503 | ||
1be18254 | 3504 | dev_notice(&instance->pdev->dev, "fwState=%x, stage:%d\n", |
8a01a41d | 3505 | fw_state, atomic_read(&instance->adprecovery)); |
39a98554 | 3506 | |
3507 | schedule_work(&instance->work_init); | |
3508 | return IRQ_HANDLED; | |
3509 | ||
3510 | } else { | |
1be18254 | 3511 | dev_notice(&instance->pdev->dev, "fwstate:%x, dis_OCR=%x\n", |
39a98554 | 3512 | fw_state, instance->disableOnlineCtrlReset); |
3513 | } | |
3514 | } | |
c4a3e0a5 | 3515 | |
5d018ad0 | 3516 | tasklet_schedule(&instance->isr_tasklet); |
c4a3e0a5 BS |
3517 | return IRQ_HANDLED; |
3518 | } | |
c4a3e0a5 BS |
3519 | /** |
3520 | * megasas_isr - isr entry point | |
3521 | */ | |
7d12e780 | 3522 | static irqreturn_t megasas_isr(int irq, void *devp) |
c4a3e0a5 | 3523 | { |
c8e858fe | 3524 | struct megasas_irq_context *irq_context = devp; |
3525 | struct megasas_instance *instance = irq_context->instance; | |
39a98554 | 3526 | unsigned long flags; |
da0dc9fb | 3527 | irqreturn_t rc; |
39a98554 | 3528 | |
c8e858fe | 3529 | if (atomic_read(&instance->fw_reset_no_pci_access)) |
39a98554 | 3530 | return IRQ_HANDLED; |
3531 | ||
39a98554 | 3532 | spin_lock_irqsave(&instance->hba_lock, flags); |
da0dc9fb | 3533 | rc = megasas_deplete_reply_queue(instance, DID_OK); |
39a98554 | 3534 | spin_unlock_irqrestore(&instance->hba_lock, flags); |
3535 | ||
3536 | return rc; | |
c4a3e0a5 BS |
3537 | } |
3538 | ||
3539 | /** | |
3540 | * megasas_transition_to_ready - Move the FW to READY state | |
1341c939 | 3541 | * @instance: Adapter soft state |
c4a3e0a5 BS |
3542 | * |
3543 | * During the initialization, FW passes can potentially be in any one of | |
3544 | * several possible states. If the FW in operational, waiting-for-handshake | |
3545 | * states, driver must take steps to bring it to ready state. Otherwise, it | |
3546 | * has to wait for the ready state. | |
3547 | */ | |
9c915a8c | 3548 | int |
058a8fac | 3549 | megasas_transition_to_ready(struct megasas_instance *instance, int ocr) |
c4a3e0a5 BS |
3550 | { |
3551 | int i; | |
3552 | u8 max_wait; | |
3553 | u32 fw_state; | |
3554 | u32 cur_state; | |
7218df69 | 3555 | u32 abs_state, curr_abs_state; |
c4a3e0a5 | 3556 | |
bc6ac5e8 TH |
3557 | abs_state = instance->instancet->read_fw_status_reg(instance->reg_set); |
3558 | fw_state = abs_state & MFI_STATE_MASK; | |
c4a3e0a5 | 3559 | |
e3bbff9f | 3560 | if (fw_state != MFI_STATE_READY) |
1be18254 | 3561 | dev_info(&instance->pdev->dev, "Waiting for FW to come to ready" |
0d49016b | 3562 | " state\n"); |
e3bbff9f | 3563 | |
c4a3e0a5 BS |
3564 | while (fw_state != MFI_STATE_READY) { |
3565 | ||
c4a3e0a5 BS |
3566 | switch (fw_state) { |
3567 | ||
3568 | case MFI_STATE_FAULT: | |
1be18254 | 3569 | dev_printk(KERN_DEBUG, &instance->pdev->dev, "FW in FAULT state!!\n"); |
058a8fac | 3570 | if (ocr) { |
3571 | max_wait = MEGASAS_RESET_WAIT_TIME; | |
3572 | cur_state = MFI_STATE_FAULT; | |
3573 | break; | |
3574 | } else | |
3575 | return -ENODEV; | |
c4a3e0a5 BS |
3576 | |
3577 | case MFI_STATE_WAIT_HANDSHAKE: | |
3578 | /* | |
3579 | * Set the CLR bit in inbound doorbell | |
3580 | */ | |
0c79e681 | 3581 | if ((instance->pdev->device == |
87911122 YB |
3582 | PCI_DEVICE_ID_LSI_SAS0073SKINNY) || |
3583 | (instance->pdev->device == | |
9c915a8c | 3584 | PCI_DEVICE_ID_LSI_SAS0071SKINNY) || |
5a8cb85b | 3585 | (instance->ctrl_context)) |
87911122 YB |
3586 | writel( |
3587 | MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG, | |
9c915a8c | 3588 | &instance->reg_set->doorbell); |
5a8cb85b | 3589 | else |
87911122 YB |
3590 | writel( |
3591 | MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG, | |
3592 | &instance->reg_set->inbound_doorbell); | |
c4a3e0a5 | 3593 | |
7218df69 | 3594 | max_wait = MEGASAS_RESET_WAIT_TIME; |
c4a3e0a5 BS |
3595 | cur_state = MFI_STATE_WAIT_HANDSHAKE; |
3596 | break; | |
3597 | ||
e3bbff9f | 3598 | case MFI_STATE_BOOT_MESSAGE_PENDING: |
87911122 | 3599 | if ((instance->pdev->device == |
9c915a8c | 3600 | PCI_DEVICE_ID_LSI_SAS0073SKINNY) || |
3601 | (instance->pdev->device == | |
3602 | PCI_DEVICE_ID_LSI_SAS0071SKINNY) || | |
5a8cb85b | 3603 | (instance->ctrl_context)) |
87911122 | 3604 | writel(MFI_INIT_HOTPLUG, |
9c915a8c | 3605 | &instance->reg_set->doorbell); |
5a8cb85b | 3606 | else |
87911122 YB |
3607 | writel(MFI_INIT_HOTPLUG, |
3608 | &instance->reg_set->inbound_doorbell); | |
e3bbff9f | 3609 | |
7218df69 | 3610 | max_wait = MEGASAS_RESET_WAIT_TIME; |
e3bbff9f SP |
3611 | cur_state = MFI_STATE_BOOT_MESSAGE_PENDING; |
3612 | break; | |
3613 | ||
c4a3e0a5 BS |
3614 | case MFI_STATE_OPERATIONAL: |
3615 | /* | |
e3bbff9f | 3616 | * Bring it to READY state; assuming max wait 10 secs |
c4a3e0a5 | 3617 | */ |
d46a3ad6 | 3618 | instance->instancet->disable_intr(instance); |
87911122 YB |
3619 | if ((instance->pdev->device == |
3620 | PCI_DEVICE_ID_LSI_SAS0073SKINNY) || | |
3621 | (instance->pdev->device == | |
9c915a8c | 3622 | PCI_DEVICE_ID_LSI_SAS0071SKINNY) || |
5a8cb85b | 3623 | (instance->ctrl_context)) { |
87911122 | 3624 | writel(MFI_RESET_FLAGS, |
9c915a8c | 3625 | &instance->reg_set->doorbell); |
5a8cb85b | 3626 | |
3627 | if (instance->ctrl_context) { | |
9c915a8c | 3628 | for (i = 0; i < (10 * 1000); i += 20) { |
3629 | if (readl( | |
3630 | &instance-> | |
3631 | reg_set-> | |
3632 | doorbell) & 1) | |
3633 | msleep(20); | |
3634 | else | |
3635 | break; | |
3636 | } | |
3637 | } | |
87911122 YB |
3638 | } else |
3639 | writel(MFI_RESET_FLAGS, | |
3640 | &instance->reg_set->inbound_doorbell); | |
c4a3e0a5 | 3641 | |
7218df69 | 3642 | max_wait = MEGASAS_RESET_WAIT_TIME; |
c4a3e0a5 BS |
3643 | cur_state = MFI_STATE_OPERATIONAL; |
3644 | break; | |
3645 | ||
3646 | case MFI_STATE_UNDEFINED: | |
3647 | /* | |
3648 | * This state should not last for more than 2 seconds | |
3649 | */ | |
7218df69 | 3650 | max_wait = MEGASAS_RESET_WAIT_TIME; |
c4a3e0a5 BS |
3651 | cur_state = MFI_STATE_UNDEFINED; |
3652 | break; | |
3653 | ||
3654 | case MFI_STATE_BB_INIT: | |
7218df69 | 3655 | max_wait = MEGASAS_RESET_WAIT_TIME; |
c4a3e0a5 BS |
3656 | cur_state = MFI_STATE_BB_INIT; |
3657 | break; | |
3658 | ||
3659 | case MFI_STATE_FW_INIT: | |
7218df69 | 3660 | max_wait = MEGASAS_RESET_WAIT_TIME; |
c4a3e0a5 BS |
3661 | cur_state = MFI_STATE_FW_INIT; |
3662 | break; | |
3663 | ||
3664 | case MFI_STATE_FW_INIT_2: | |
7218df69 | 3665 | max_wait = MEGASAS_RESET_WAIT_TIME; |
c4a3e0a5 BS |
3666 | cur_state = MFI_STATE_FW_INIT_2; |
3667 | break; | |
3668 | ||
3669 | case MFI_STATE_DEVICE_SCAN: | |
7218df69 | 3670 | max_wait = MEGASAS_RESET_WAIT_TIME; |
c4a3e0a5 BS |
3671 | cur_state = MFI_STATE_DEVICE_SCAN; |
3672 | break; | |
3673 | ||
3674 | case MFI_STATE_FLUSH_CACHE: | |
7218df69 | 3675 | max_wait = MEGASAS_RESET_WAIT_TIME; |
c4a3e0a5 BS |
3676 | cur_state = MFI_STATE_FLUSH_CACHE; |
3677 | break; | |
3678 | ||
3679 | default: | |
1be18254 | 3680 | dev_printk(KERN_DEBUG, &instance->pdev->dev, "Unknown state 0x%x\n", |
c4a3e0a5 BS |
3681 | fw_state); |
3682 | return -ENODEV; | |
3683 | } | |
3684 | ||
3685 | /* | |
3686 | * The cur_state should not last for more than max_wait secs | |
3687 | */ | |
3688 | for (i = 0; i < (max_wait * 1000); i++) { | |
bc6ac5e8 TH |
3689 | curr_abs_state = instance->instancet-> |
3690 | read_fw_status_reg(instance->reg_set); | |
c4a3e0a5 | 3691 | |
7218df69 | 3692 | if (abs_state == curr_abs_state) { |
c4a3e0a5 BS |
3693 | msleep(1); |
3694 | } else | |
3695 | break; | |
3696 | } | |
3697 | ||
3698 | /* | |
3699 | * Return error if fw_state hasn't changed after max_wait | |
3700 | */ | |
7218df69 | 3701 | if (curr_abs_state == abs_state) { |
1be18254 | 3702 | dev_printk(KERN_DEBUG, &instance->pdev->dev, "FW state [%d] hasn't changed " |
c4a3e0a5 BS |
3703 | "in %d secs\n", fw_state, max_wait); |
3704 | return -ENODEV; | |
3705 | } | |
bc6ac5e8 TH |
3706 | |
3707 | abs_state = curr_abs_state; | |
3708 | fw_state = curr_abs_state & MFI_STATE_MASK; | |
39a98554 | 3709 | } |
1be18254 | 3710 | dev_info(&instance->pdev->dev, "FW now in Ready state\n"); |
c4a3e0a5 BS |
3711 | |
3712 | return 0; | |
3713 | } | |
3714 | ||
3715 | /** | |
3716 | * megasas_teardown_frame_pool - Destroy the cmd frame DMA pool | |
3717 | * @instance: Adapter soft state | |
3718 | */ | |
3719 | static void megasas_teardown_frame_pool(struct megasas_instance *instance) | |
3720 | { | |
3721 | int i; | |
9c915a8c | 3722 | u32 max_cmd = instance->max_mfi_cmds; |
c4a3e0a5 BS |
3723 | struct megasas_cmd *cmd; |
3724 | ||
3725 | if (!instance->frame_dma_pool) | |
3726 | return; | |
3727 | ||
3728 | /* | |
3729 | * Return all frames to pool | |
3730 | */ | |
3731 | for (i = 0; i < max_cmd; i++) { | |
3732 | ||
3733 | cmd = instance->cmd_list[i]; | |
3734 | ||
3735 | if (cmd->frame) | |
3736 | pci_pool_free(instance->frame_dma_pool, cmd->frame, | |
3737 | cmd->frame_phys_addr); | |
3738 | ||
3739 | if (cmd->sense) | |
e3bbff9f | 3740 | pci_pool_free(instance->sense_dma_pool, cmd->sense, |
c4a3e0a5 BS |
3741 | cmd->sense_phys_addr); |
3742 | } | |
3743 | ||
3744 | /* | |
3745 | * Now destroy the pool itself | |
3746 | */ | |
3747 | pci_pool_destroy(instance->frame_dma_pool); | |
3748 | pci_pool_destroy(instance->sense_dma_pool); | |
3749 | ||
3750 | instance->frame_dma_pool = NULL; | |
3751 | instance->sense_dma_pool = NULL; | |
3752 | } | |
3753 | ||
3754 | /** | |
3755 | * megasas_create_frame_pool - Creates DMA pool for cmd frames | |
3756 | * @instance: Adapter soft state | |
3757 | * | |
3758 | * Each command packet has an embedded DMA memory buffer that is used for | |
3759 | * filling MFI frame and the SG list that immediately follows the frame. This | |
3760 | * function creates those DMA memory buffers for each command packet by using | |
3761 | * PCI pool facility. | |
3762 | */ | |
3763 | static int megasas_create_frame_pool(struct megasas_instance *instance) | |
3764 | { | |
3765 | int i; | |
3766 | u32 max_cmd; | |
3767 | u32 sge_sz; | |
c4a3e0a5 BS |
3768 | u32 total_sz; |
3769 | u32 frame_count; | |
3770 | struct megasas_cmd *cmd; | |
3771 | ||
9c915a8c | 3772 | max_cmd = instance->max_mfi_cmds; |
c4a3e0a5 BS |
3773 | |
3774 | /* | |
3775 | * Size of our frame is 64 bytes for MFI frame, followed by max SG | |
3776 | * elements and finally SCSI_SENSE_BUFFERSIZE bytes for sense buffer | |
3777 | */ | |
3778 | sge_sz = (IS_DMA64) ? sizeof(struct megasas_sge64) : | |
3779 | sizeof(struct megasas_sge32); | |
3780 | ||
da0dc9fb | 3781 | if (instance->flag_ieee) |
f4c9a131 | 3782 | sge_sz = sizeof(struct megasas_sge_skinny); |
f4c9a131 | 3783 | |
c4a3e0a5 | 3784 | /* |
200aed58 SS |
3785 | * For MFI controllers. |
3786 | * max_num_sge = 60 | |
3787 | * max_sge_sz = 16 byte (sizeof megasas_sge_skinny) | |
3788 | * Total 960 byte (15 MFI frame of 64 byte) | |
3789 | * | |
3790 | * Fusion adapter require only 3 extra frame. | |
3791 | * max_num_sge = 16 (defined as MAX_IOCTL_SGE) | |
3792 | * max_sge_sz = 12 byte (sizeof megasas_sge64) | |
3793 | * Total 192 byte (3 MFI frame of 64 byte) | |
c4a3e0a5 | 3794 | */ |
200aed58 | 3795 | frame_count = instance->ctrl_context ? (3 + 1) : (15 + 1); |
c4a3e0a5 BS |
3796 | total_sz = MEGAMFI_FRAME_SIZE * frame_count; |
3797 | /* | |
3798 | * Use DMA pool facility provided by PCI layer | |
3799 | */ | |
3800 | instance->frame_dma_pool = pci_pool_create("megasas frame pool", | |
200aed58 | 3801 | instance->pdev, total_sz, 256, 0); |
c4a3e0a5 BS |
3802 | |
3803 | if (!instance->frame_dma_pool) { | |
1be18254 | 3804 | dev_printk(KERN_DEBUG, &instance->pdev->dev, "failed to setup frame pool\n"); |
c4a3e0a5 BS |
3805 | return -ENOMEM; |
3806 | } | |
3807 | ||
3808 | instance->sense_dma_pool = pci_pool_create("megasas sense pool", | |
3809 | instance->pdev, 128, 4, 0); | |
3810 | ||
3811 | if (!instance->sense_dma_pool) { | |
1be18254 | 3812 | dev_printk(KERN_DEBUG, &instance->pdev->dev, "failed to setup sense pool\n"); |
c4a3e0a5 BS |
3813 | |
3814 | pci_pool_destroy(instance->frame_dma_pool); | |
3815 | instance->frame_dma_pool = NULL; | |
3816 | ||
3817 | return -ENOMEM; | |
3818 | } | |
3819 | ||
3820 | /* | |
3821 | * Allocate and attach a frame to each of the commands in cmd_list. | |
3822 | * By making cmd->index as the context instead of the &cmd, we can | |
3823 | * always use 32bit context regardless of the architecture | |
3824 | */ | |
3825 | for (i = 0; i < max_cmd; i++) { | |
3826 | ||
3827 | cmd = instance->cmd_list[i]; | |
3828 | ||
3829 | cmd->frame = pci_pool_alloc(instance->frame_dma_pool, | |
3830 | GFP_KERNEL, &cmd->frame_phys_addr); | |
3831 | ||
3832 | cmd->sense = pci_pool_alloc(instance->sense_dma_pool, | |
3833 | GFP_KERNEL, &cmd->sense_phys_addr); | |
3834 | ||
3835 | /* | |
3836 | * megasas_teardown_frame_pool() takes care of freeing | |
3837 | * whatever has been allocated | |
3838 | */ | |
3839 | if (!cmd->frame || !cmd->sense) { | |
1be18254 | 3840 | dev_printk(KERN_DEBUG, &instance->pdev->dev, "pci_pool_alloc failed\n"); |
c4a3e0a5 BS |
3841 | megasas_teardown_frame_pool(instance); |
3842 | return -ENOMEM; | |
3843 | } | |
3844 | ||
707e09bd | 3845 | memset(cmd->frame, 0, total_sz); |
94cd65dd | 3846 | cmd->frame->io.context = cpu_to_le32(cmd->index); |
7e8a75f4 | 3847 | cmd->frame->io.pad_0 = 0; |
5a8cb85b | 3848 | if (!instance->ctrl_context && reset_devices) |
e5f93a36 | 3849 | cmd->frame->hdr.cmd = MFI_CMD_INVALID; |
c4a3e0a5 BS |
3850 | } |
3851 | ||
3852 | return 0; | |
3853 | } | |
3854 | ||
3855 | /** | |
3856 | * megasas_free_cmds - Free all the cmds in the free cmd pool | |
3857 | * @instance: Adapter soft state | |
3858 | */ | |
9c915a8c | 3859 | void megasas_free_cmds(struct megasas_instance *instance) |
c4a3e0a5 BS |
3860 | { |
3861 | int i; | |
da0dc9fb | 3862 | |
c4a3e0a5 BS |
3863 | /* First free the MFI frame pool */ |
3864 | megasas_teardown_frame_pool(instance); | |
3865 | ||
3866 | /* Free all the commands in the cmd_list */ | |
9c915a8c | 3867 | for (i = 0; i < instance->max_mfi_cmds; i++) |
3868 | ||
c4a3e0a5 BS |
3869 | kfree(instance->cmd_list[i]); |
3870 | ||
3871 | /* Free the cmd_list buffer itself */ | |
3872 | kfree(instance->cmd_list); | |
3873 | instance->cmd_list = NULL; | |
3874 | ||
3875 | INIT_LIST_HEAD(&instance->cmd_pool); | |
3876 | } | |
3877 | ||
3878 | /** | |
3879 | * megasas_alloc_cmds - Allocates the command packets | |
3880 | * @instance: Adapter soft state | |
3881 | * | |
3882 | * Each command that is issued to the FW, whether IO commands from the OS or | |
3883 | * internal commands like IOCTLs, are wrapped in local data structure called | |
3884 | * megasas_cmd. The frame embedded in this megasas_cmd is actually issued to | |
3885 | * the FW. | |
3886 | * | |
3887 | * Each frame has a 32-bit field called context (tag). This context is used | |
3888 | * to get back the megasas_cmd from the frame when a frame gets completed in | |
3889 | * the ISR. Typically the address of the megasas_cmd itself would be used as | |
3890 | * the context. But we wanted to keep the differences between 32 and 64 bit | |
3891 | * systems to the mininum. We always use 32 bit integers for the context. In | |
3892 | * this driver, the 32 bit values are the indices into an array cmd_list. | |
3893 | * This array is used only to look up the megasas_cmd given the context. The | |
3894 | * free commands themselves are maintained in a linked list called cmd_pool. | |
3895 | */ | |
9c915a8c | 3896 | int megasas_alloc_cmds(struct megasas_instance *instance) |
c4a3e0a5 BS |
3897 | { |
3898 | int i; | |
3899 | int j; | |
3900 | u32 max_cmd; | |
3901 | struct megasas_cmd *cmd; | |
90dc9d98 | 3902 | struct fusion_context *fusion; |
c4a3e0a5 | 3903 | |
90dc9d98 | 3904 | fusion = instance->ctrl_context; |
9c915a8c | 3905 | max_cmd = instance->max_mfi_cmds; |
c4a3e0a5 BS |
3906 | |
3907 | /* | |
3908 | * instance->cmd_list is an array of struct megasas_cmd pointers. | |
3909 | * Allocate the dynamic array first and then allocate individual | |
3910 | * commands. | |
3911 | */ | |
dd00cc48 | 3912 | instance->cmd_list = kcalloc(max_cmd, sizeof(struct megasas_cmd*), GFP_KERNEL); |
c4a3e0a5 BS |
3913 | |
3914 | if (!instance->cmd_list) { | |
1be18254 | 3915 | dev_printk(KERN_DEBUG, &instance->pdev->dev, "out of memory\n"); |
c4a3e0a5 BS |
3916 | return -ENOMEM; |
3917 | } | |
3918 | ||
9c915a8c | 3919 | memset(instance->cmd_list, 0, sizeof(struct megasas_cmd *) *max_cmd); |
c4a3e0a5 BS |
3920 | |
3921 | for (i = 0; i < max_cmd; i++) { | |
3922 | instance->cmd_list[i] = kmalloc(sizeof(struct megasas_cmd), | |
3923 | GFP_KERNEL); | |
3924 | ||
3925 | if (!instance->cmd_list[i]) { | |
3926 | ||
3927 | for (j = 0; j < i; j++) | |
3928 | kfree(instance->cmd_list[j]); | |
3929 | ||
3930 | kfree(instance->cmd_list); | |
3931 | instance->cmd_list = NULL; | |
3932 | ||
3933 | return -ENOMEM; | |
3934 | } | |
3935 | } | |
3936 | ||
c4a3e0a5 BS |
3937 | for (i = 0; i < max_cmd; i++) { |
3938 | cmd = instance->cmd_list[i]; | |
3939 | memset(cmd, 0, sizeof(struct megasas_cmd)); | |
3940 | cmd->index = i; | |
39a98554 | 3941 | cmd->scmd = NULL; |
c4a3e0a5 BS |
3942 | cmd->instance = instance; |
3943 | ||
3944 | list_add_tail(&cmd->list, &instance->cmd_pool); | |
3945 | } | |
3946 | ||
3947 | /* | |
3948 | * Create a frame pool and assign one frame to each cmd | |
3949 | */ | |
3950 | if (megasas_create_frame_pool(instance)) { | |
1be18254 | 3951 | dev_printk(KERN_DEBUG, &instance->pdev->dev, "Error creating frame DMA pool\n"); |
c4a3e0a5 BS |
3952 | megasas_free_cmds(instance); |
3953 | } | |
3954 | ||
3955 | return 0; | |
3956 | } | |
3957 | ||
6d40afbc SS |
3958 | /* |
3959 | * dcmd_timeout_ocr_possible - Check if OCR is possible based on Driver/FW state. | |
3960 | * @instance: Adapter soft state | |
3961 | * | |
3962 | * Return 0 for only Fusion adapter, if driver load/unload is not in progress | |
3963 | * or FW is not under OCR. | |
3964 | */ | |
3965 | inline int | |
3966 | dcmd_timeout_ocr_possible(struct megasas_instance *instance) { | |
3967 | ||
3968 | if (!instance->ctrl_context) | |
3969 | return KILL_ADAPTER; | |
3970 | else if (instance->unload || | |
3971 | test_bit(MEGASAS_FUSION_IN_RESET, &instance->reset_flags)) | |
3972 | return IGNORE_TIMEOUT; | |
3973 | else | |
3974 | return INITIATE_OCR; | |
3975 | } | |
3976 | ||
2216c305 SS |
3977 | static int |
3978 | megasas_get_pd_info(struct megasas_instance *instance, u16 device_id) | |
3979 | { | |
3980 | int ret; | |
3981 | struct megasas_cmd *cmd; | |
3982 | struct megasas_dcmd_frame *dcmd; | |
3983 | ||
3984 | cmd = megasas_get_cmd(instance); | |
3985 | ||
3986 | if (!cmd) { | |
3987 | dev_err(&instance->pdev->dev, "Failed to get cmd %s\n", __func__); | |
3988 | return -ENOMEM; | |
3989 | } | |
3990 | ||
3991 | dcmd = &cmd->frame->dcmd; | |
3992 | ||
3993 | memset(instance->pd_info, 0, sizeof(*instance->pd_info)); | |
3994 | memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); | |
3995 | ||
3996 | dcmd->mbox.s[0] = cpu_to_le16(device_id); | |
3997 | dcmd->cmd = MFI_CMD_DCMD; | |
3998 | dcmd->cmd_status = 0xFF; | |
3999 | dcmd->sge_count = 1; | |
4000 | dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_READ); | |
4001 | dcmd->timeout = 0; | |
4002 | dcmd->pad_0 = 0; | |
4003 | dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_PD_INFO)); | |
4004 | dcmd->opcode = cpu_to_le32(MR_DCMD_PD_GET_INFO); | |
4005 | dcmd->sgl.sge32[0].phys_addr = cpu_to_le32(instance->pd_info_h); | |
4006 | dcmd->sgl.sge32[0].length = cpu_to_le32(sizeof(struct MR_PD_INFO)); | |
4007 | ||
4008 | if (instance->ctrl_context && !instance->mask_interrupts) | |
4009 | ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS); | |
4010 | else | |
4011 | ret = megasas_issue_polled(instance, cmd); | |
4012 | ||
4013 | switch (ret) { | |
4014 | case DCMD_SUCCESS: | |
4015 | instance->pd_list[device_id].interface = | |
4016 | instance->pd_info->state.ddf.pdType.intf; | |
4017 | break; | |
4018 | ||
4019 | case DCMD_TIMEOUT: | |
4020 | ||
4021 | switch (dcmd_timeout_ocr_possible(instance)) { | |
4022 | case INITIATE_OCR: | |
4023 | cmd->flags |= DRV_DCMD_SKIP_REFIRE; | |
4024 | megasas_reset_fusion(instance->host, | |
4025 | MFI_IO_TIMEOUT_OCR); | |
4026 | break; | |
4027 | case KILL_ADAPTER: | |
4028 | megaraid_sas_kill_hba(instance); | |
4029 | break; | |
4030 | case IGNORE_TIMEOUT: | |
4031 | dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", | |
4032 | __func__, __LINE__); | |
4033 | break; | |
4034 | } | |
4035 | ||
4036 | break; | |
4037 | } | |
4038 | ||
4039 | if (ret != DCMD_TIMEOUT) | |
4040 | megasas_return_cmd(instance, cmd); | |
4041 | ||
4042 | return ret; | |
4043 | } | |
81e403ce YB |
4044 | /* |
4045 | * megasas_get_pd_list_info - Returns FW's pd_list structure | |
4046 | * @instance: Adapter soft state | |
4047 | * @pd_list: pd_list structure | |
4048 | * | |
4049 | * Issues an internal command (DCMD) to get the FW's controller PD | |
4050 | * list structure. This information is mainly used to find out SYSTEM | |
4051 | * supported by the FW. | |
4052 | */ | |
4053 | static int | |
4054 | megasas_get_pd_list(struct megasas_instance *instance) | |
4055 | { | |
4056 | int ret = 0, pd_index = 0; | |
4057 | struct megasas_cmd *cmd; | |
4058 | struct megasas_dcmd_frame *dcmd; | |
4059 | struct MR_PD_LIST *ci; | |
4060 | struct MR_PD_ADDRESS *pd_addr; | |
4061 | dma_addr_t ci_h = 0; | |
4062 | ||
d9083160 SS |
4063 | if (instance->pd_list_not_supported) { |
4064 | dev_info(&instance->pdev->dev, "MR_DCMD_PD_LIST_QUERY " | |
4065 | "not supported by firmware\n"); | |
4066 | return ret; | |
4067 | } | |
4068 | ||
81e403ce YB |
4069 | cmd = megasas_get_cmd(instance); |
4070 | ||
4071 | if (!cmd) { | |
1be18254 | 4072 | dev_printk(KERN_DEBUG, &instance->pdev->dev, "(get_pd_list): Failed to get cmd\n"); |
81e403ce YB |
4073 | return -ENOMEM; |
4074 | } | |
4075 | ||
4076 | dcmd = &cmd->frame->dcmd; | |
4077 | ||
4078 | ci = pci_alloc_consistent(instance->pdev, | |
4079 | MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST), &ci_h); | |
4080 | ||
4081 | if (!ci) { | |
1be18254 | 4082 | dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to alloc mem for pd_list\n"); |
81e403ce YB |
4083 | megasas_return_cmd(instance, cmd); |
4084 | return -ENOMEM; | |
4085 | } | |
4086 | ||
4087 | memset(ci, 0, sizeof(*ci)); | |
4088 | memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); | |
4089 | ||
4090 | dcmd->mbox.b[0] = MR_PD_QUERY_TYPE_EXPOSED_TO_HOST; | |
4091 | dcmd->mbox.b[1] = 0; | |
4092 | dcmd->cmd = MFI_CMD_DCMD; | |
2be2a988 | 4093 | dcmd->cmd_status = MFI_STAT_INVALID_STATUS; |
81e403ce | 4094 | dcmd->sge_count = 1; |
94cd65dd | 4095 | dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_READ); |
81e403ce | 4096 | dcmd->timeout = 0; |
780a3762 | 4097 | dcmd->pad_0 = 0; |
94cd65dd SS |
4098 | dcmd->data_xfer_len = cpu_to_le32(MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST)); |
4099 | dcmd->opcode = cpu_to_le32(MR_DCMD_PD_LIST_QUERY); | |
4100 | dcmd->sgl.sge32[0].phys_addr = cpu_to_le32(ci_h); | |
4101 | dcmd->sgl.sge32[0].length = cpu_to_le32(MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST)); | |
81e403ce | 4102 | |
90dc9d98 SS |
4103 | if (instance->ctrl_context && !instance->mask_interrupts) |
4104 | ret = megasas_issue_blocked_cmd(instance, cmd, | |
6d40afbc | 4105 | MFI_IO_TIMEOUT_SECS); |
90dc9d98 SS |
4106 | else |
4107 | ret = megasas_issue_polled(instance, cmd); | |
81e403ce | 4108 | |
6d40afbc SS |
4109 | switch (ret) { |
4110 | case DCMD_FAILED: | |
30845586 SS |
4111 | dev_info(&instance->pdev->dev, "MR_DCMD_PD_LIST_QUERY " |
4112 | "failed/not supported by firmware\n"); | |
4113 | ||
4114 | if (instance->ctrl_context) | |
4115 | megaraid_sas_kill_hba(instance); | |
4116 | else | |
4117 | instance->pd_list_not_supported = 1; | |
6d40afbc SS |
4118 | break; |
4119 | case DCMD_TIMEOUT: | |
81e403ce | 4120 | |
6d40afbc SS |
4121 | switch (dcmd_timeout_ocr_possible(instance)) { |
4122 | case INITIATE_OCR: | |
4123 | cmd->flags |= DRV_DCMD_SKIP_REFIRE; | |
4124 | /* | |
4125 | * DCMD failed from AEN path. | |
4126 | * AEN path already hold reset_mutex to avoid PCI access | |
4127 | * while OCR is in progress. | |
4128 | */ | |
4129 | mutex_unlock(&instance->reset_mutex); | |
4130 | megasas_reset_fusion(instance->host, | |
4131 | MFI_IO_TIMEOUT_OCR); | |
4132 | mutex_lock(&instance->reset_mutex); | |
4133 | break; | |
4134 | case KILL_ADAPTER: | |
4135 | megaraid_sas_kill_hba(instance); | |
4136 | break; | |
4137 | case IGNORE_TIMEOUT: | |
4138 | dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d \n", | |
4139 | __func__, __LINE__); | |
4140 | break; | |
4141 | } | |
81e403ce | 4142 | |
6d40afbc SS |
4143 | break; |
4144 | ||
4145 | case DCMD_SUCCESS: | |
4146 | pd_addr = ci->addr; | |
4147 | ||
4148 | if ((le32_to_cpu(ci->count) > | |
4149 | (MEGASAS_MAX_PD_CHANNELS * MEGASAS_MAX_DEV_PER_CHANNEL))) | |
4150 | break; | |
81e403ce | 4151 | |
999ece0a | 4152 | memset(instance->local_pd_list, 0, |
6d40afbc | 4153 | MEGASAS_MAX_PD * sizeof(struct megasas_pd_list)); |
81e403ce | 4154 | |
94cd65dd | 4155 | for (pd_index = 0; pd_index < le32_to_cpu(ci->count); pd_index++) { |
999ece0a | 4156 | instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].tid = |
6d40afbc | 4157 | le16_to_cpu(pd_addr->deviceId); |
999ece0a | 4158 | instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].driveType = |
6d40afbc | 4159 | pd_addr->scsiDevType; |
999ece0a | 4160 | instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].driveState = |
6d40afbc | 4161 | MR_PD_STATE_SYSTEM; |
81e403ce YB |
4162 | pd_addr++; |
4163 | } | |
6d40afbc | 4164 | |
999ece0a SS |
4165 | memcpy(instance->pd_list, instance->local_pd_list, |
4166 | sizeof(instance->pd_list)); | |
6d40afbc SS |
4167 | break; |
4168 | ||
81e403ce YB |
4169 | } |
4170 | ||
4171 | pci_free_consistent(instance->pdev, | |
4172 | MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST), | |
4173 | ci, ci_h); | |
90dc9d98 | 4174 | |
6d40afbc SS |
4175 | if (ret != DCMD_TIMEOUT) |
4176 | megasas_return_cmd(instance, cmd); | |
81e403ce YB |
4177 | |
4178 | return ret; | |
4179 | } | |
4180 | ||
bdc6fb8d YB |
4181 | /* |
4182 | * megasas_get_ld_list_info - Returns FW's ld_list structure | |
4183 | * @instance: Adapter soft state | |
4184 | * @ld_list: ld_list structure | |
4185 | * | |
4186 | * Issues an internal command (DCMD) to get the FW's controller PD | |
4187 | * list structure. This information is mainly used to find out SYSTEM | |
4188 | * supported by the FW. | |
4189 | */ | |
4190 | static int | |
4191 | megasas_get_ld_list(struct megasas_instance *instance) | |
4192 | { | |
4193 | int ret = 0, ld_index = 0, ids = 0; | |
4194 | struct megasas_cmd *cmd; | |
4195 | struct megasas_dcmd_frame *dcmd; | |
4196 | struct MR_LD_LIST *ci; | |
4197 | dma_addr_t ci_h = 0; | |
94cd65dd | 4198 | u32 ld_count; |
bdc6fb8d YB |
4199 | |
4200 | cmd = megasas_get_cmd(instance); | |
4201 | ||
4202 | if (!cmd) { | |
1be18254 | 4203 | dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_list: Failed to get cmd\n"); |
bdc6fb8d YB |
4204 | return -ENOMEM; |
4205 | } | |
4206 | ||
4207 | dcmd = &cmd->frame->dcmd; | |
4208 | ||
4209 | ci = pci_alloc_consistent(instance->pdev, | |
4210 | sizeof(struct MR_LD_LIST), | |
4211 | &ci_h); | |
4212 | ||
4213 | if (!ci) { | |
1be18254 | 4214 | dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to alloc mem in get_ld_list\n"); |
bdc6fb8d YB |
4215 | megasas_return_cmd(instance, cmd); |
4216 | return -ENOMEM; | |
4217 | } | |
4218 | ||
4219 | memset(ci, 0, sizeof(*ci)); | |
4220 | memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); | |
4221 | ||
51087a86 SS |
4222 | if (instance->supportmax256vd) |
4223 | dcmd->mbox.b[0] = 1; | |
bdc6fb8d | 4224 | dcmd->cmd = MFI_CMD_DCMD; |
2be2a988 | 4225 | dcmd->cmd_status = MFI_STAT_INVALID_STATUS; |
bdc6fb8d | 4226 | dcmd->sge_count = 1; |
94cd65dd | 4227 | dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_READ); |
bdc6fb8d | 4228 | dcmd->timeout = 0; |
94cd65dd SS |
4229 | dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_LD_LIST)); |
4230 | dcmd->opcode = cpu_to_le32(MR_DCMD_LD_GET_LIST); | |
4231 | dcmd->sgl.sge32[0].phys_addr = cpu_to_le32(ci_h); | |
4232 | dcmd->sgl.sge32[0].length = cpu_to_le32(sizeof(struct MR_LD_LIST)); | |
bdc6fb8d YB |
4233 | dcmd->pad_0 = 0; |
4234 | ||
90dc9d98 SS |
4235 | if (instance->ctrl_context && !instance->mask_interrupts) |
4236 | ret = megasas_issue_blocked_cmd(instance, cmd, | |
6d40afbc | 4237 | MFI_IO_TIMEOUT_SECS); |
90dc9d98 SS |
4238 | else |
4239 | ret = megasas_issue_polled(instance, cmd); | |
4240 | ||
94cd65dd SS |
4241 | ld_count = le32_to_cpu(ci->ldCount); |
4242 | ||
6d40afbc SS |
4243 | switch (ret) { |
4244 | case DCMD_FAILED: | |
4245 | megaraid_sas_kill_hba(instance); | |
4246 | break; | |
4247 | case DCMD_TIMEOUT: | |
4248 | ||
4249 | switch (dcmd_timeout_ocr_possible(instance)) { | |
4250 | case INITIATE_OCR: | |
4251 | cmd->flags |= DRV_DCMD_SKIP_REFIRE; | |
4252 | /* | |
4253 | * DCMD failed from AEN path. | |
4254 | * AEN path already hold reset_mutex to avoid PCI access | |
4255 | * while OCR is in progress. | |
4256 | */ | |
4257 | mutex_unlock(&instance->reset_mutex); | |
4258 | megasas_reset_fusion(instance->host, | |
4259 | MFI_IO_TIMEOUT_OCR); | |
4260 | mutex_lock(&instance->reset_mutex); | |
4261 | break; | |
4262 | case KILL_ADAPTER: | |
4263 | megaraid_sas_kill_hba(instance); | |
4264 | break; | |
4265 | case IGNORE_TIMEOUT: | |
4266 | dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", | |
4267 | __func__, __LINE__); | |
4268 | break; | |
4269 | } | |
4270 | ||
4271 | break; | |
4272 | ||
4273 | case DCMD_SUCCESS: | |
4274 | if (ld_count > instance->fw_supported_vd_count) | |
4275 | break; | |
bdc6fb8d | 4276 | |
51087a86 | 4277 | memset(instance->ld_ids, 0xff, MAX_LOGICAL_DRIVES_EXT); |
bdc6fb8d | 4278 | |
94cd65dd | 4279 | for (ld_index = 0; ld_index < ld_count; ld_index++) { |
bdc6fb8d YB |
4280 | if (ci->ldList[ld_index].state != 0) { |
4281 | ids = ci->ldList[ld_index].ref.targetId; | |
6d40afbc | 4282 | instance->ld_ids[ids] = ci->ldList[ld_index].ref.targetId; |
bdc6fb8d YB |
4283 | } |
4284 | } | |
6d40afbc SS |
4285 | |
4286 | break; | |
bdc6fb8d YB |
4287 | } |
4288 | ||
6d40afbc SS |
4289 | pci_free_consistent(instance->pdev, sizeof(struct MR_LD_LIST), ci, ci_h); |
4290 | ||
4291 | if (ret != DCMD_TIMEOUT) | |
4292 | megasas_return_cmd(instance, cmd); | |
bdc6fb8d | 4293 | |
bdc6fb8d YB |
4294 | return ret; |
4295 | } | |
4296 | ||
21c9e160 | 4297 | /** |
4298 | * megasas_ld_list_query - Returns FW's ld_list structure | |
4299 | * @instance: Adapter soft state | |
4300 | * @ld_list: ld_list structure | |
4301 | * | |
4302 | * Issues an internal command (DCMD) to get the FW's controller PD | |
4303 | * list structure. This information is mainly used to find out SYSTEM | |
4304 | * supported by the FW. | |
4305 | */ | |
4306 | static int | |
4307 | megasas_ld_list_query(struct megasas_instance *instance, u8 query_type) | |
4308 | { | |
4309 | int ret = 0, ld_index = 0, ids = 0; | |
4310 | struct megasas_cmd *cmd; | |
4311 | struct megasas_dcmd_frame *dcmd; | |
4312 | struct MR_LD_TARGETID_LIST *ci; | |
4313 | dma_addr_t ci_h = 0; | |
94cd65dd | 4314 | u32 tgtid_count; |
21c9e160 | 4315 | |
4316 | cmd = megasas_get_cmd(instance); | |
4317 | ||
4318 | if (!cmd) { | |
1be18254 BH |
4319 | dev_warn(&instance->pdev->dev, |
4320 | "megasas_ld_list_query: Failed to get cmd\n"); | |
21c9e160 | 4321 | return -ENOMEM; |
4322 | } | |
4323 | ||
4324 | dcmd = &cmd->frame->dcmd; | |
4325 | ||
4326 | ci = pci_alloc_consistent(instance->pdev, | |
4327 | sizeof(struct MR_LD_TARGETID_LIST), &ci_h); | |
4328 | ||
4329 | if (!ci) { | |
1be18254 BH |
4330 | dev_warn(&instance->pdev->dev, |
4331 | "Failed to alloc mem for ld_list_query\n"); | |
21c9e160 | 4332 | megasas_return_cmd(instance, cmd); |
4333 | return -ENOMEM; | |
4334 | } | |
4335 | ||
4336 | memset(ci, 0, sizeof(*ci)); | |
4337 | memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); | |
4338 | ||
4339 | dcmd->mbox.b[0] = query_type; | |
51087a86 SS |
4340 | if (instance->supportmax256vd) |
4341 | dcmd->mbox.b[2] = 1; | |
21c9e160 | 4342 | |
4343 | dcmd->cmd = MFI_CMD_DCMD; | |
2be2a988 | 4344 | dcmd->cmd_status = MFI_STAT_INVALID_STATUS; |
21c9e160 | 4345 | dcmd->sge_count = 1; |
94cd65dd | 4346 | dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_READ); |
21c9e160 | 4347 | dcmd->timeout = 0; |
94cd65dd SS |
4348 | dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_LD_TARGETID_LIST)); |
4349 | dcmd->opcode = cpu_to_le32(MR_DCMD_LD_LIST_QUERY); | |
4350 | dcmd->sgl.sge32[0].phys_addr = cpu_to_le32(ci_h); | |
4351 | dcmd->sgl.sge32[0].length = cpu_to_le32(sizeof(struct MR_LD_TARGETID_LIST)); | |
21c9e160 | 4352 | dcmd->pad_0 = 0; |
4353 | ||
90dc9d98 | 4354 | if (instance->ctrl_context && !instance->mask_interrupts) |
6d40afbc | 4355 | ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS); |
90dc9d98 SS |
4356 | else |
4357 | ret = megasas_issue_polled(instance, cmd); | |
21c9e160 | 4358 | |
6d40afbc SS |
4359 | switch (ret) { |
4360 | case DCMD_FAILED: | |
4361 | dev_info(&instance->pdev->dev, | |
4362 | "DCMD not supported by firmware - %s %d\n", | |
4363 | __func__, __LINE__); | |
4364 | ret = megasas_get_ld_list(instance); | |
4365 | break; | |
4366 | case DCMD_TIMEOUT: | |
4367 | switch (dcmd_timeout_ocr_possible(instance)) { | |
4368 | case INITIATE_OCR: | |
4369 | cmd->flags |= DRV_DCMD_SKIP_REFIRE; | |
4370 | /* | |
4371 | * DCMD failed from AEN path. | |
4372 | * AEN path already hold reset_mutex to avoid PCI access | |
4373 | * while OCR is in progress. | |
4374 | */ | |
4375 | mutex_unlock(&instance->reset_mutex); | |
4376 | megasas_reset_fusion(instance->host, | |
4377 | MFI_IO_TIMEOUT_OCR); | |
4378 | mutex_lock(&instance->reset_mutex); | |
4379 | break; | |
4380 | case KILL_ADAPTER: | |
4381 | megaraid_sas_kill_hba(instance); | |
4382 | break; | |
4383 | case IGNORE_TIMEOUT: | |
4384 | dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", | |
4385 | __func__, __LINE__); | |
4386 | break; | |
4387 | } | |
4388 | ||
4389 | break; | |
4390 | case DCMD_SUCCESS: | |
4391 | tgtid_count = le32_to_cpu(ci->count); | |
4392 | ||
4393 | if ((tgtid_count > (instance->fw_supported_vd_count))) | |
4394 | break; | |
94cd65dd | 4395 | |
21c9e160 | 4396 | memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS); |
94cd65dd | 4397 | for (ld_index = 0; ld_index < tgtid_count; ld_index++) { |
21c9e160 | 4398 | ids = ci->targetId[ld_index]; |
4399 | instance->ld_ids[ids] = ci->targetId[ld_index]; | |
4400 | } | |
4401 | ||
6d40afbc | 4402 | break; |
21c9e160 | 4403 | } |
4404 | ||
4405 | pci_free_consistent(instance->pdev, sizeof(struct MR_LD_TARGETID_LIST), | |
6d40afbc | 4406 | ci, ci_h); |
21c9e160 | 4407 | |
6d40afbc SS |
4408 | if (ret != DCMD_TIMEOUT) |
4409 | megasas_return_cmd(instance, cmd); | |
21c9e160 | 4410 | |
4411 | return ret; | |
4412 | } | |
4413 | ||
d009b576 SS |
4414 | /* |
4415 | * megasas_update_ext_vd_details : Update details w.r.t Extended VD | |
4416 | * instance : Controller's instance | |
4417 | */ | |
4418 | static void megasas_update_ext_vd_details(struct megasas_instance *instance) | |
4419 | { | |
4420 | struct fusion_context *fusion; | |
4421 | u32 old_map_sz; | |
4422 | u32 new_map_sz; | |
4423 | ||
4424 | fusion = instance->ctrl_context; | |
4425 | /* For MFI based controllers return dummy success */ | |
4426 | if (!fusion) | |
4427 | return; | |
4428 | ||
4429 | instance->supportmax256vd = | |
4430 | instance->ctrl_info->adapterOperations3.supportMaxExtLDs; | |
4431 | /* Below is additional check to address future FW enhancement */ | |
4432 | if (instance->ctrl_info->max_lds > 64) | |
4433 | instance->supportmax256vd = 1; | |
4434 | ||
4435 | instance->drv_supported_vd_count = MEGASAS_MAX_LD_CHANNELS | |
4436 | * MEGASAS_MAX_DEV_PER_CHANNEL; | |
4437 | instance->drv_supported_pd_count = MEGASAS_MAX_PD_CHANNELS | |
4438 | * MEGASAS_MAX_DEV_PER_CHANNEL; | |
4439 | if (instance->supportmax256vd) { | |
4440 | instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES_EXT; | |
4441 | instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES; | |
4442 | } else { | |
4443 | instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES; | |
4444 | instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES; | |
4445 | } | |
d88da09a SS |
4446 | |
4447 | dev_info(&instance->pdev->dev, | |
4448 | "firmware type\t: %s\n", | |
4449 | instance->supportmax256vd ? "Extended VD(240 VD)firmware" : | |
4450 | "Legacy(64 VD) firmware"); | |
d009b576 | 4451 | |
da0dc9fb | 4452 | old_map_sz = sizeof(struct MR_FW_RAID_MAP) + |
d009b576 SS |
4453 | (sizeof(struct MR_LD_SPAN_MAP) * |
4454 | (instance->fw_supported_vd_count - 1)); | |
da0dc9fb BH |
4455 | new_map_sz = sizeof(struct MR_FW_RAID_MAP_EXT); |
4456 | fusion->drv_map_sz = sizeof(struct MR_DRV_RAID_MAP) + | |
d009b576 SS |
4457 | (sizeof(struct MR_LD_SPAN_MAP) * |
4458 | (instance->drv_supported_vd_count - 1)); | |
4459 | ||
4460 | fusion->max_map_sz = max(old_map_sz, new_map_sz); | |
4461 | ||
4462 | ||
4463 | if (instance->supportmax256vd) | |
4464 | fusion->current_map_sz = new_map_sz; | |
4465 | else | |
4466 | fusion->current_map_sz = old_map_sz; | |
d009b576 SS |
4467 | } |
4468 | ||
c4a3e0a5 BS |
4469 | /** |
4470 | * megasas_get_controller_info - Returns FW's controller structure | |
4471 | * @instance: Adapter soft state | |
c4a3e0a5 BS |
4472 | * |
4473 | * Issues an internal command (DCMD) to get the FW's controller structure. | |
4474 | * This information is mainly used to find out the maximum IO transfer per | |
4475 | * command supported by the FW. | |
4476 | */ | |
51087a86 | 4477 | int |
d009b576 | 4478 | megasas_get_ctrl_info(struct megasas_instance *instance) |
c4a3e0a5 BS |
4479 | { |
4480 | int ret = 0; | |
4481 | struct megasas_cmd *cmd; | |
4482 | struct megasas_dcmd_frame *dcmd; | |
4483 | struct megasas_ctrl_info *ci; | |
d009b576 | 4484 | struct megasas_ctrl_info *ctrl_info; |
c4a3e0a5 BS |
4485 | dma_addr_t ci_h = 0; |
4486 | ||
d009b576 SS |
4487 | ctrl_info = instance->ctrl_info; |
4488 | ||
c4a3e0a5 BS |
4489 | cmd = megasas_get_cmd(instance); |
4490 | ||
4491 | if (!cmd) { | |
1be18254 | 4492 | dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to get a free cmd\n"); |
c4a3e0a5 BS |
4493 | return -ENOMEM; |
4494 | } | |
4495 | ||
4496 | dcmd = &cmd->frame->dcmd; | |
4497 | ||
4498 | ci = pci_alloc_consistent(instance->pdev, | |
4499 | sizeof(struct megasas_ctrl_info), &ci_h); | |
4500 | ||
4501 | if (!ci) { | |
1be18254 | 4502 | dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to alloc mem for ctrl info\n"); |
c4a3e0a5 BS |
4503 | megasas_return_cmd(instance, cmd); |
4504 | return -ENOMEM; | |
4505 | } | |
4506 | ||
4507 | memset(ci, 0, sizeof(*ci)); | |
4508 | memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); | |
4509 | ||
4510 | dcmd->cmd = MFI_CMD_DCMD; | |
2be2a988 | 4511 | dcmd->cmd_status = MFI_STAT_INVALID_STATUS; |
c4a3e0a5 | 4512 | dcmd->sge_count = 1; |
94cd65dd | 4513 | dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_READ); |
c4a3e0a5 | 4514 | dcmd->timeout = 0; |
780a3762 | 4515 | dcmd->pad_0 = 0; |
94cd65dd SS |
4516 | dcmd->data_xfer_len = cpu_to_le32(sizeof(struct megasas_ctrl_info)); |
4517 | dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_GET_INFO); | |
4518 | dcmd->sgl.sge32[0].phys_addr = cpu_to_le32(ci_h); | |
4519 | dcmd->sgl.sge32[0].length = cpu_to_le32(sizeof(struct megasas_ctrl_info)); | |
51087a86 | 4520 | dcmd->mbox.b[0] = 1; |
c4a3e0a5 | 4521 | |
90dc9d98 | 4522 | if (instance->ctrl_context && !instance->mask_interrupts) |
6d40afbc | 4523 | ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS); |
90dc9d98 SS |
4524 | else |
4525 | ret = megasas_issue_polled(instance, cmd); | |
4526 | ||
6d40afbc SS |
4527 | switch (ret) { |
4528 | case DCMD_SUCCESS: | |
c4a3e0a5 | 4529 | memcpy(ctrl_info, ci, sizeof(struct megasas_ctrl_info)); |
6d40afbc SS |
4530 | /* Save required controller information in |
4531 | * CPU endianness format. | |
4532 | */ | |
d009b576 SS |
4533 | le32_to_cpus((u32 *)&ctrl_info->properties.OnOffProperties); |
4534 | le32_to_cpus((u32 *)&ctrl_info->adapterOperations2); | |
4535 | le32_to_cpus((u32 *)&ctrl_info->adapterOperations3); | |
6d40afbc SS |
4536 | |
4537 | /* Update the latest Ext VD info. | |
4538 | * From Init path, store current firmware details. | |
4539 | * From OCR path, detect any firmware properties changes. | |
4540 | * in case of Firmware upgrade without system reboot. | |
4541 | */ | |
d009b576 | 4542 | megasas_update_ext_vd_details(instance); |
3761cb4c | 4543 | instance->use_seqnum_jbod_fp = |
4544 | ctrl_info->adapterOperations3.useSeqNumJbodFP; | |
6d40afbc SS |
4545 | |
4546 | /*Check whether controller is iMR or MR */ | |
4026e9aa SS |
4547 | instance->is_imr = (ctrl_info->memory_size ? 0 : 1); |
4548 | dev_info(&instance->pdev->dev, | |
6d40afbc SS |
4549 | "controller type\t: %s(%dMB)\n", |
4550 | instance->is_imr ? "iMR" : "MR", | |
4551 | le16_to_cpu(ctrl_info->memory_size)); | |
4552 | ||
c4bd2654 | 4553 | instance->disableOnlineCtrlReset = |
4554 | ctrl_info->properties.OnOffProperties.disableOnlineCtrlReset; | |
3222251d | 4555 | instance->secure_jbod_support = |
4556 | ctrl_info->adapterOperations3.supportSecurityonJBOD; | |
6d40afbc SS |
4557 | dev_info(&instance->pdev->dev, "Online Controller Reset(OCR)\t: %s\n", |
4558 | instance->disableOnlineCtrlReset ? "Disabled" : "Enabled"); | |
3222251d | 4559 | dev_info(&instance->pdev->dev, "Secure JBOD support\t: %s\n", |
4560 | instance->secure_jbod_support ? "Yes" : "No"); | |
6d40afbc SS |
4561 | break; |
4562 | ||
4563 | case DCMD_TIMEOUT: | |
4564 | switch (dcmd_timeout_ocr_possible(instance)) { | |
4565 | case INITIATE_OCR: | |
4566 | cmd->flags |= DRV_DCMD_SKIP_REFIRE; | |
4567 | megasas_reset_fusion(instance->host, | |
4568 | MFI_IO_TIMEOUT_OCR); | |
4569 | break; | |
4570 | case KILL_ADAPTER: | |
4571 | megaraid_sas_kill_hba(instance); | |
4572 | break; | |
4573 | case IGNORE_TIMEOUT: | |
4574 | dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", | |
4575 | __func__, __LINE__); | |
4576 | break; | |
4577 | } | |
4578 | case DCMD_FAILED: | |
4579 | megaraid_sas_kill_hba(instance); | |
4580 | break; | |
4581 | ||
d009b576 | 4582 | } |
c4a3e0a5 BS |
4583 | |
4584 | pci_free_consistent(instance->pdev, sizeof(struct megasas_ctrl_info), | |
4585 | ci, ci_h); | |
4586 | ||
4026e9aa | 4587 | megasas_return_cmd(instance, cmd); |
6d40afbc SS |
4588 | |
4589 | ||
c4a3e0a5 BS |
4590 | return ret; |
4591 | } | |
4592 | ||
fc62b3fc SS |
4593 | /* |
4594 | * megasas_set_crash_dump_params - Sends address of crash dump DMA buffer | |
4595 | * to firmware | |
4596 | * | |
4597 | * @instance: Adapter soft state | |
4598 | * @crash_buf_state - tell FW to turn ON/OFF crash dump feature | |
4599 | MR_CRASH_BUF_TURN_OFF = 0 | |
4600 | MR_CRASH_BUF_TURN_ON = 1 | |
4601 | * @return 0 on success non-zero on failure. | |
4602 | * Issues an internal command (DCMD) to set parameters for crash dump feature. | |
4603 | * Driver will send address of crash dump DMA buffer and set mbox to tell FW | |
4604 | * that driver supports crash dump feature. This DCMD will be sent only if | |
4605 | * crash dump feature is supported by the FW. | |
4606 | * | |
4607 | */ | |
4608 | int megasas_set_crash_dump_params(struct megasas_instance *instance, | |
4609 | u8 crash_buf_state) | |
4610 | { | |
4611 | int ret = 0; | |
4612 | struct megasas_cmd *cmd; | |
4613 | struct megasas_dcmd_frame *dcmd; | |
4614 | ||
4615 | cmd = megasas_get_cmd(instance); | |
4616 | ||
4617 | if (!cmd) { | |
4618 | dev_err(&instance->pdev->dev, "Failed to get a free cmd\n"); | |
4619 | return -ENOMEM; | |
4620 | } | |
4621 | ||
4622 | ||
4623 | dcmd = &cmd->frame->dcmd; | |
4624 | ||
4625 | memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); | |
4626 | dcmd->mbox.b[0] = crash_buf_state; | |
4627 | dcmd->cmd = MFI_CMD_DCMD; | |
2be2a988 | 4628 | dcmd->cmd_status = MFI_STAT_INVALID_STATUS; |
fc62b3fc SS |
4629 | dcmd->sge_count = 1; |
4630 | dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_NONE); | |
4631 | dcmd->timeout = 0; | |
4632 | dcmd->pad_0 = 0; | |
4633 | dcmd->data_xfer_len = cpu_to_le32(CRASH_DMA_BUF_SIZE); | |
4634 | dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_SET_CRASH_DUMP_PARAMS); | |
4635 | dcmd->sgl.sge32[0].phys_addr = cpu_to_le32(instance->crash_dump_h); | |
4636 | dcmd->sgl.sge32[0].length = cpu_to_le32(CRASH_DMA_BUF_SIZE); | |
4637 | ||
90dc9d98 | 4638 | if (instance->ctrl_context && !instance->mask_interrupts) |
6d40afbc | 4639 | ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS); |
fc62b3fc | 4640 | else |
90dc9d98 SS |
4641 | ret = megasas_issue_polled(instance, cmd); |
4642 | ||
6d40afbc SS |
4643 | if (ret == DCMD_TIMEOUT) { |
4644 | switch (dcmd_timeout_ocr_possible(instance)) { | |
4645 | case INITIATE_OCR: | |
4646 | cmd->flags |= DRV_DCMD_SKIP_REFIRE; | |
4647 | megasas_reset_fusion(instance->host, | |
4648 | MFI_IO_TIMEOUT_OCR); | |
4649 | break; | |
4650 | case KILL_ADAPTER: | |
4651 | megaraid_sas_kill_hba(instance); | |
4652 | break; | |
4653 | case IGNORE_TIMEOUT: | |
4654 | dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", | |
4655 | __func__, __LINE__); | |
4656 | break; | |
4657 | } | |
4658 | } else | |
4659 | megasas_return_cmd(instance, cmd); | |
4660 | ||
fc62b3fc SS |
4661 | return ret; |
4662 | } | |
4663 | ||
31ea7088 | 4664 | /** |
4665 | * megasas_issue_init_mfi - Initializes the FW | |
4666 | * @instance: Adapter soft state | |
4667 | * | |
4668 | * Issues the INIT MFI cmd | |
4669 | */ | |
4670 | static int | |
4671 | megasas_issue_init_mfi(struct megasas_instance *instance) | |
4672 | { | |
9ab9ed38 | 4673 | __le32 context; |
31ea7088 | 4674 | struct megasas_cmd *cmd; |
31ea7088 | 4675 | struct megasas_init_frame *init_frame; |
4676 | struct megasas_init_queue_info *initq_info; | |
4677 | dma_addr_t init_frame_h; | |
4678 | dma_addr_t initq_info_h; | |
4679 | ||
4680 | /* | |
4681 | * Prepare a init frame. Note the init frame points to queue info | |
4682 | * structure. Each frame has SGL allocated after first 64 bytes. For | |
4683 | * this frame - since we don't need any SGL - we use SGL's space as | |
4684 | * queue info structure | |
4685 | * | |
4686 | * We will not get a NULL command below. We just created the pool. | |
4687 | */ | |
4688 | cmd = megasas_get_cmd(instance); | |
4689 | ||
4690 | init_frame = (struct megasas_init_frame *)cmd->frame; | |
4691 | initq_info = (struct megasas_init_queue_info *) | |
4692 | ((unsigned long)init_frame + 64); | |
4693 | ||
4694 | init_frame_h = cmd->frame_phys_addr; | |
4695 | initq_info_h = init_frame_h + 64; | |
4696 | ||
4697 | context = init_frame->context; | |
4698 | memset(init_frame, 0, MEGAMFI_FRAME_SIZE); | |
4699 | memset(initq_info, 0, sizeof(struct megasas_init_queue_info)); | |
4700 | init_frame->context = context; | |
4701 | ||
94cd65dd SS |
4702 | initq_info->reply_queue_entries = cpu_to_le32(instance->max_fw_cmds + 1); |
4703 | initq_info->reply_queue_start_phys_addr_lo = cpu_to_le32(instance->reply_queue_h); | |
31ea7088 | 4704 | |
94cd65dd SS |
4705 | initq_info->producer_index_phys_addr_lo = cpu_to_le32(instance->producer_h); |
4706 | initq_info->consumer_index_phys_addr_lo = cpu_to_le32(instance->consumer_h); | |
31ea7088 | 4707 | |
4708 | init_frame->cmd = MFI_CMD_INIT; | |
2be2a988 | 4709 | init_frame->cmd_status = MFI_STAT_INVALID_STATUS; |
94cd65dd SS |
4710 | init_frame->queue_info_new_phys_addr_lo = |
4711 | cpu_to_le32(lower_32_bits(initq_info_h)); | |
4712 | init_frame->queue_info_new_phys_addr_hi = | |
4713 | cpu_to_le32(upper_32_bits(initq_info_h)); | |
31ea7088 | 4714 | |
94cd65dd | 4715 | init_frame->data_xfer_len = cpu_to_le32(sizeof(struct megasas_init_queue_info)); |
31ea7088 | 4716 | |
4717 | /* | |
4718 | * disable the intr before firing the init frame to FW | |
4719 | */ | |
d46a3ad6 | 4720 | instance->instancet->disable_intr(instance); |
31ea7088 | 4721 | |
4722 | /* | |
4723 | * Issue the init frame in polled mode | |
4724 | */ | |
4725 | ||
4726 | if (megasas_issue_polled(instance, cmd)) { | |
1be18254 | 4727 | dev_err(&instance->pdev->dev, "Failed to init firmware\n"); |
31ea7088 | 4728 | megasas_return_cmd(instance, cmd); |
4729 | goto fail_fw_init; | |
4730 | } | |
4731 | ||
4732 | megasas_return_cmd(instance, cmd); | |
4733 | ||
4734 | return 0; | |
4735 | ||
4736 | fail_fw_init: | |
4737 | return -EINVAL; | |
4738 | } | |
4739 | ||
cd50ba8e | 4740 | static u32 |
4741 | megasas_init_adapter_mfi(struct megasas_instance *instance) | |
c4a3e0a5 | 4742 | { |
cd50ba8e | 4743 | struct megasas_register_set __iomem *reg_set; |
c4a3e0a5 BS |
4744 | u32 context_sz; |
4745 | u32 reply_q_sz; | |
c4a3e0a5 BS |
4746 | |
4747 | reg_set = instance->reg_set; | |
4748 | ||
c4a3e0a5 BS |
4749 | /* |
4750 | * Get various operational parameters from status register | |
4751 | */ | |
1341c939 | 4752 | instance->max_fw_cmds = instance->instancet->read_fw_status_reg(reg_set) & 0x00FFFF; |
e3bbff9f SP |
4753 | /* |
4754 | * Reduce the max supported cmds by 1. This is to ensure that the | |
4755 | * reply_q_sz (1 more than the max cmd that driver may send) | |
4756 | * does not exceed max cmds that the FW can support | |
4757 | */ | |
4758 | instance->max_fw_cmds = instance->max_fw_cmds-1; | |
9c915a8c | 4759 | instance->max_mfi_cmds = instance->max_fw_cmds; |
0d49016b | 4760 | instance->max_num_sge = (instance->instancet->read_fw_status_reg(reg_set) & 0xFF0000) >> |
1341c939 | 4761 | 0x10; |
f26ac3a1 SS |
4762 | /* |
4763 | * For MFI skinny adapters, MEGASAS_SKINNY_INT_CMDS commands | |
4764 | * are reserved for IOCTL + driver's internal DCMDs. | |
4765 | */ | |
4766 | if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) || | |
4767 | (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY)) { | |
4768 | instance->max_scsi_cmds = (instance->max_fw_cmds - | |
4769 | MEGASAS_SKINNY_INT_CMDS); | |
4770 | sema_init(&instance->ioctl_sem, MEGASAS_SKINNY_INT_CMDS); | |
4771 | } else { | |
4772 | instance->max_scsi_cmds = (instance->max_fw_cmds - | |
4773 | MEGASAS_INT_CMDS); | |
4774 | sema_init(&instance->ioctl_sem, (MEGASAS_MFI_IOCTL_CMDS)); | |
4775 | } | |
4776 | ||
308ec459 | 4777 | instance->cur_can_queue = instance->max_scsi_cmds; |
c4a3e0a5 BS |
4778 | /* |
4779 | * Create a pool of commands | |
4780 | */ | |
4781 | if (megasas_alloc_cmds(instance)) | |
4782 | goto fail_alloc_cmds; | |
4783 | ||
4784 | /* | |
4785 | * Allocate memory for reply queue. Length of reply queue should | |
4786 | * be _one_ more than the maximum commands handled by the firmware. | |
4787 | * | |
4788 | * Note: When FW completes commands, it places corresponding contex | |
4789 | * values in this circular reply queue. This circular queue is a fairly | |
4790 | * typical producer-consumer queue. FW is the producer (of completed | |
4791 | * commands) and the driver is the consumer. | |
4792 | */ | |
4793 | context_sz = sizeof(u32); | |
4794 | reply_q_sz = context_sz * (instance->max_fw_cmds + 1); | |
4795 | ||
4796 | instance->reply_queue = pci_alloc_consistent(instance->pdev, | |
4797 | reply_q_sz, | |
4798 | &instance->reply_queue_h); | |
4799 | ||
4800 | if (!instance->reply_queue) { | |
1be18254 | 4801 | dev_printk(KERN_DEBUG, &instance->pdev->dev, "Out of DMA mem for reply queue\n"); |
c4a3e0a5 BS |
4802 | goto fail_reply_queue; |
4803 | } | |
4804 | ||
31ea7088 | 4805 | if (megasas_issue_init_mfi(instance)) |
c4a3e0a5 | 4806 | goto fail_fw_init; |
c4a3e0a5 | 4807 | |
d009b576 | 4808 | if (megasas_get_ctrl_info(instance)) { |
51087a86 SS |
4809 | dev_err(&instance->pdev->dev, "(%d): Could get controller info " |
4810 | "Fail from %s %d\n", instance->unique_id, | |
4811 | __func__, __LINE__); | |
4812 | goto fail_fw_init; | |
4813 | } | |
4814 | ||
39a98554 | 4815 | instance->fw_support_ieee = 0; |
4816 | instance->fw_support_ieee = | |
4817 | (instance->instancet->read_fw_status_reg(reg_set) & | |
4818 | 0x04000000); | |
4819 | ||
1be18254 | 4820 | dev_notice(&instance->pdev->dev, "megasas_init_mfi: fw_support_ieee=%d", |
39a98554 | 4821 | instance->fw_support_ieee); |
4822 | ||
4823 | if (instance->fw_support_ieee) | |
4824 | instance->flag_ieee = 1; | |
4825 | ||
cd50ba8e | 4826 | return 0; |
4827 | ||
4828 | fail_fw_init: | |
4829 | ||
4830 | pci_free_consistent(instance->pdev, reply_q_sz, | |
4831 | instance->reply_queue, instance->reply_queue_h); | |
4832 | fail_reply_queue: | |
4833 | megasas_free_cmds(instance); | |
4834 | ||
4835 | fail_alloc_cmds: | |
cd50ba8e | 4836 | return 1; |
4837 | } | |
4838 | ||
d3557fc8 | 4839 | /* |
fad119b7 | 4840 | * megasas_setup_irqs_ioapic - register legacy interrupts. |
d3557fc8 SS |
4841 | * @instance: Adapter soft state |
4842 | * | |
4843 | * Do not enable interrupt, only setup ISRs. | |
4844 | * | |
4845 | * Return 0 on success. | |
4846 | */ | |
4847 | static int | |
4848 | megasas_setup_irqs_ioapic(struct megasas_instance *instance) | |
4849 | { | |
4850 | struct pci_dev *pdev; | |
4851 | ||
4852 | pdev = instance->pdev; | |
4853 | instance->irq_context[0].instance = instance; | |
4854 | instance->irq_context[0].MSIxIndex = 0; | |
fad119b7 HR |
4855 | if (request_irq(pci_irq_vector(pdev, 0), |
4856 | instance->instancet->service_isr, IRQF_SHARED, | |
4857 | "megasas", &instance->irq_context[0])) { | |
d3557fc8 SS |
4858 | dev_err(&instance->pdev->dev, |
4859 | "Failed to register IRQ from %s %d\n", | |
4860 | __func__, __LINE__); | |
4861 | return -1; | |
4862 | } | |
4863 | return 0; | |
4864 | } | |
4865 | ||
4866 | /** | |
4867 | * megasas_setup_irqs_msix - register MSI-x interrupts. | |
4868 | * @instance: Adapter soft state | |
4869 | * @is_probe: Driver probe check | |
4870 | * | |
4871 | * Do not enable interrupt, only setup ISRs. | |
4872 | * | |
4873 | * Return 0 on success. | |
4874 | */ | |
4875 | static int | |
4876 | megasas_setup_irqs_msix(struct megasas_instance *instance, u8 is_probe) | |
4877 | { | |
fad119b7 | 4878 | int i, j; |
d3557fc8 SS |
4879 | struct pci_dev *pdev; |
4880 | ||
4881 | pdev = instance->pdev; | |
4882 | ||
4883 | /* Try MSI-x */ | |
d3557fc8 SS |
4884 | for (i = 0; i < instance->msix_vectors; i++) { |
4885 | instance->irq_context[i].instance = instance; | |
4886 | instance->irq_context[i].MSIxIndex = i; | |
fad119b7 | 4887 | if (request_irq(pci_irq_vector(pdev, i), |
d3557fc8 SS |
4888 | instance->instancet->service_isr, 0, "megasas", |
4889 | &instance->irq_context[i])) { | |
4890 | dev_err(&instance->pdev->dev, | |
4891 | "Failed to register IRQ for vector %d.\n", i); | |
fad119b7 HR |
4892 | for (j = 0; j < i; j++) |
4893 | free_irq(pci_irq_vector(pdev, j), | |
4894 | &instance->irq_context[j]); | |
d3557fc8 SS |
4895 | /* Retry irq register for IO_APIC*/ |
4896 | instance->msix_vectors = 0; | |
4897 | if (is_probe) | |
4898 | return megasas_setup_irqs_ioapic(instance); | |
4899 | else | |
4900 | return -1; | |
4901 | } | |
d3557fc8 SS |
4902 | } |
4903 | return 0; | |
4904 | } | |
4905 | ||
4906 | /* | |
4907 | * megasas_destroy_irqs- unregister interrupts. | |
4908 | * @instance: Adapter soft state | |
4909 | * return: void | |
4910 | */ | |
4911 | static void | |
4912 | megasas_destroy_irqs(struct megasas_instance *instance) { | |
4913 | ||
4914 | int i; | |
4915 | ||
4916 | if (instance->msix_vectors) | |
4917 | for (i = 0; i < instance->msix_vectors; i++) { | |
fad119b7 | 4918 | free_irq(pci_irq_vector(instance->pdev, i), |
d3557fc8 SS |
4919 | &instance->irq_context[i]); |
4920 | } | |
4921 | else | |
fad119b7 HR |
4922 | free_irq(pci_irq_vector(instance->pdev, 0), |
4923 | &instance->irq_context[0]); | |
d3557fc8 SS |
4924 | } |
4925 | ||
3761cb4c | 4926 | /** |
4927 | * megasas_setup_jbod_map - setup jbod map for FP seq_number. | |
4928 | * @instance: Adapter soft state | |
4929 | * @is_probe: Driver probe check | |
4930 | * | |
4931 | * Return 0 on success. | |
4932 | */ | |
4933 | void | |
4934 | megasas_setup_jbod_map(struct megasas_instance *instance) | |
4935 | { | |
4936 | int i; | |
4937 | struct fusion_context *fusion = instance->ctrl_context; | |
4938 | u32 pd_seq_map_sz; | |
4939 | ||
4940 | pd_seq_map_sz = sizeof(struct MR_PD_CFG_SEQ_NUM_SYNC) + | |
4941 | (sizeof(struct MR_PD_CFG_SEQ) * (MAX_PHYSICAL_DEVICES - 1)); | |
4942 | ||
4943 | if (reset_devices || !fusion || | |
4944 | !instance->ctrl_info->adapterOperations3.useSeqNumJbodFP) { | |
4945 | dev_info(&instance->pdev->dev, | |
4946 | "Jbod map is not supported %s %d\n", | |
4947 | __func__, __LINE__); | |
4948 | instance->use_seqnum_jbod_fp = false; | |
4949 | return; | |
4950 | } | |
4951 | ||
4952 | if (fusion->pd_seq_sync[0]) | |
4953 | goto skip_alloc; | |
4954 | ||
4955 | for (i = 0; i < JBOD_MAPS_COUNT; i++) { | |
4956 | fusion->pd_seq_sync[i] = dma_alloc_coherent | |
4957 | (&instance->pdev->dev, pd_seq_map_sz, | |
4958 | &fusion->pd_seq_phys[i], GFP_KERNEL); | |
4959 | if (!fusion->pd_seq_sync[i]) { | |
4960 | dev_err(&instance->pdev->dev, | |
4961 | "Failed to allocate memory from %s %d\n", | |
4962 | __func__, __LINE__); | |
4963 | if (i == 1) { | |
4964 | dma_free_coherent(&instance->pdev->dev, | |
4965 | pd_seq_map_sz, fusion->pd_seq_sync[0], | |
4966 | fusion->pd_seq_phys[0]); | |
4967 | fusion->pd_seq_sync[0] = NULL; | |
4968 | } | |
4969 | instance->use_seqnum_jbod_fp = false; | |
4970 | return; | |
4971 | } | |
4972 | } | |
4973 | ||
4974 | skip_alloc: | |
4975 | if (!megasas_sync_pd_seq_num(instance, false) && | |
4976 | !megasas_sync_pd_seq_num(instance, true)) | |
4977 | instance->use_seqnum_jbod_fp = true; | |
4978 | else | |
4979 | instance->use_seqnum_jbod_fp = false; | |
4980 | } | |
4981 | ||
cd50ba8e | 4982 | /** |
4983 | * megasas_init_fw - Initializes the FW | |
4984 | * @instance: Adapter soft state | |
4985 | * | |
4986 | * This is the main function for initializing firmware | |
4987 | */ | |
4988 | ||
4989 | static int megasas_init_fw(struct megasas_instance *instance) | |
4990 | { | |
4991 | u32 max_sectors_1; | |
4992 | u32 max_sectors_2; | |
d46a3ad6 | 4993 | u32 tmp_sectors, msix_enable, scratch_pad_2; |
11f8a7b3 | 4994 | resource_size_t base_addr; |
cd50ba8e | 4995 | struct megasas_register_set __iomem *reg_set; |
51087a86 | 4996 | struct megasas_ctrl_info *ctrl_info = NULL; |
cd50ba8e | 4997 | unsigned long bar_list; |
d46a3ad6 | 4998 | int i, loop, fw_msix_count = 0; |
229fe47c | 4999 | struct IOV_111 *iovPtr; |
5a8cb85b | 5000 | struct fusion_context *fusion; |
5001 | ||
5002 | fusion = instance->ctrl_context; | |
cd50ba8e | 5003 | |
5004 | /* Find first memory bar */ | |
5005 | bar_list = pci_select_bars(instance->pdev, IORESOURCE_MEM); | |
51f9039f | 5006 | instance->bar = find_first_bit(&bar_list, BITS_PER_LONG); |
e7f85168 | 5007 | if (pci_request_selected_regions(instance->pdev, 1<<instance->bar, |
cd50ba8e | 5008 | "megasas: LSI")) { |
1be18254 | 5009 | dev_printk(KERN_DEBUG, &instance->pdev->dev, "IO memory region busy!\n"); |
cd50ba8e | 5010 | return -EBUSY; |
5011 | } | |
5012 | ||
11f8a7b3 BC |
5013 | base_addr = pci_resource_start(instance->pdev, instance->bar); |
5014 | instance->reg_set = ioremap_nocache(base_addr, 8192); | |
cd50ba8e | 5015 | |
5016 | if (!instance->reg_set) { | |
1be18254 | 5017 | dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to map IO mem\n"); |
cd50ba8e | 5018 | goto fail_ioremap; |
5019 | } | |
5020 | ||
5021 | reg_set = instance->reg_set; | |
5022 | ||
5023 | switch (instance->pdev->device) { | |
9c915a8c | 5024 | case PCI_DEVICE_ID_LSI_FUSION: |
229fe47c | 5025 | case PCI_DEVICE_ID_LSI_PLASMA: |
36807e67 | 5026 | case PCI_DEVICE_ID_LSI_INVADER: |
21d3c710 | 5027 | case PCI_DEVICE_ID_LSI_FURY: |
90c204bc | 5028 | case PCI_DEVICE_ID_LSI_INTRUDER: |
5029 | case PCI_DEVICE_ID_LSI_INTRUDER_24: | |
7364d34b | 5030 | case PCI_DEVICE_ID_LSI_CUTLASS_52: |
5031 | case PCI_DEVICE_ID_LSI_CUTLASS_53: | |
9c915a8c | 5032 | instance->instancet = &megasas_instance_template_fusion; |
5033 | break; | |
cd50ba8e | 5034 | case PCI_DEVICE_ID_LSI_SAS1078R: |
5035 | case PCI_DEVICE_ID_LSI_SAS1078DE: | |
5036 | instance->instancet = &megasas_instance_template_ppc; | |
5037 | break; | |
5038 | case PCI_DEVICE_ID_LSI_SAS1078GEN2: | |
5039 | case PCI_DEVICE_ID_LSI_SAS0079GEN2: | |
5040 | instance->instancet = &megasas_instance_template_gen2; | |
5041 | break; | |
5042 | case PCI_DEVICE_ID_LSI_SAS0073SKINNY: | |
5043 | case PCI_DEVICE_ID_LSI_SAS0071SKINNY: | |
5044 | instance->instancet = &megasas_instance_template_skinny; | |
5045 | break; | |
5046 | case PCI_DEVICE_ID_LSI_SAS1064R: | |
5047 | case PCI_DEVICE_ID_DELL_PERC5: | |
5048 | default: | |
5049 | instance->instancet = &megasas_instance_template_xscale; | |
5050 | break; | |
5051 | } | |
5052 | ||
6431f5d7 SS |
5053 | if (megasas_transition_to_ready(instance, 0)) { |
5054 | atomic_set(&instance->fw_reset_no_pci_access, 1); | |
5055 | instance->instancet->adp_reset | |
5056 | (instance, instance->reg_set); | |
5057 | atomic_set(&instance->fw_reset_no_pci_access, 0); | |
5058 | dev_info(&instance->pdev->dev, | |
1be18254 | 5059 | "FW restarted successfully from %s!\n", |
6431f5d7 SS |
5060 | __func__); |
5061 | ||
5062 | /*waitting for about 30 second before retry*/ | |
5063 | ssleep(30); | |
5064 | ||
5065 | if (megasas_transition_to_ready(instance, 0)) | |
5066 | goto fail_ready_state; | |
5067 | } | |
cd50ba8e | 5068 | |
d46a3ad6 SS |
5069 | /* |
5070 | * MSI-X host index 0 is common for all adapter. | |
5071 | * It is used for all MPT based Adapters. | |
5072 | */ | |
5073 | instance->reply_post_host_index_addr[0] = | |
8a232bb3 | 5074 | (u32 __iomem *)((u8 __iomem *)instance->reg_set + |
d46a3ad6 SS |
5075 | MPI2_REPLY_POST_HOST_INDEX_OFFSET); |
5076 | ||
3f1abce4 | 5077 | /* Check if MSI-X is supported while in ready state */ |
5078 | msix_enable = (instance->instancet->read_fw_status_reg(reg_set) & | |
5079 | 0x4000000) >> 0x1a; | |
c8e858fe | 5080 | if (msix_enable && !msix_disable) { |
fad119b7 HR |
5081 | int irq_flags = PCI_IRQ_MSIX; |
5082 | ||
d46a3ad6 SS |
5083 | scratch_pad_2 = readl |
5084 | (&instance->reg_set->outbound_scratch_pad_2); | |
c8e858fe | 5085 | /* Check max MSI-X vectors */ |
5a8cb85b | 5086 | if (fusion) { |
5087 | if (fusion->adapter_type == THUNDERBOLT_SERIES) { /* Thunderbolt Series*/ | |
5088 | instance->msix_vectors = (scratch_pad_2 | |
5089 | & MR_MAX_REPLY_QUEUES_OFFSET) + 1; | |
5090 | fw_msix_count = instance->msix_vectors; | |
5091 | } else { /* Invader series supports more than 8 MSI-x vectors*/ | |
5092 | instance->msix_vectors = ((scratch_pad_2 | |
5093 | & MR_MAX_REPLY_QUEUES_EXT_OFFSET) | |
5094 | >> MR_MAX_REPLY_QUEUES_EXT_OFFSET_SHIFT) + 1; | |
179ac142 SS |
5095 | if (rdpq_enable) |
5096 | instance->is_rdpq = (scratch_pad_2 & MR_RDPQ_MODE_OFFSET) ? | |
5097 | 1 : 0; | |
5a8cb85b | 5098 | fw_msix_count = instance->msix_vectors; |
5099 | /* Save 1-15 reply post index address to local memory | |
5100 | * Index 0 is already saved from reg offset | |
5101 | * MPI2_REPLY_POST_HOST_INDEX_OFFSET | |
5102 | */ | |
5103 | for (loop = 1; loop < MR_MAX_MSIX_REG_ARRAY; loop++) { | |
5104 | instance->reply_post_host_index_addr[loop] = | |
5105 | (u32 __iomem *) | |
5106 | ((u8 __iomem *)instance->reg_set + | |
5107 | MPI2_SUP_REPLY_POST_HOST_INDEX_OFFSET | |
5108 | + (loop * 0x10)); | |
5109 | } | |
d46a3ad6 SS |
5110 | } |
5111 | if (msix_vectors) | |
5112 | instance->msix_vectors = min(msix_vectors, | |
5113 | instance->msix_vectors); | |
5a8cb85b | 5114 | } else /* MFI adapters */ |
c8e858fe | 5115 | instance->msix_vectors = 1; |
5116 | /* Don't bother allocating more MSI-X vectors than cpus */ | |
5117 | instance->msix_vectors = min(instance->msix_vectors, | |
5118 | (unsigned int)num_online_cpus()); | |
fad119b7 HR |
5119 | if (smp_affinity_enable) |
5120 | irq_flags |= PCI_IRQ_AFFINITY; | |
5121 | i = pci_alloc_irq_vectors(instance->pdev, 1, | |
5122 | instance->msix_vectors, irq_flags); | |
c12de882 | 5123 | if (i > 0) |
8ae80ed1 AG |
5124 | instance->msix_vectors = i; |
5125 | else | |
c8e858fe | 5126 | instance->msix_vectors = 0; |
5127 | } | |
fad119b7 HR |
5128 | i = pci_alloc_irq_vectors(instance->pdev, 1, 1, PCI_IRQ_LEGACY); |
5129 | if (i < 0) | |
5130 | goto fail_setup_irqs; | |
3f1abce4 | 5131 | |
258c3af2 TH |
5132 | dev_info(&instance->pdev->dev, |
5133 | "firmware supports msix\t: (%d)", fw_msix_count); | |
5134 | dev_info(&instance->pdev->dev, | |
5135 | "current msix/online cpus\t: (%d/%d)\n", | |
5136 | instance->msix_vectors, (unsigned int)num_online_cpus()); | |
179ac142 SS |
5137 | dev_info(&instance->pdev->dev, |
5138 | "RDPQ mode\t: (%s)\n", instance->is_rdpq ? "enabled" : "disabled"); | |
d3557fc8 | 5139 | |
91626c27 | 5140 | tasklet_init(&instance->isr_tasklet, instance->instancet->tasklet, |
5141 | (unsigned long)instance); | |
5142 | ||
51087a86 SS |
5143 | instance->ctrl_info = kzalloc(sizeof(struct megasas_ctrl_info), |
5144 | GFP_KERNEL); | |
5145 | if (instance->ctrl_info == NULL) | |
5146 | goto fail_init_adapter; | |
5147 | ||
5148 | /* | |
5149 | * Below are default value for legacy Firmware. | |
5150 | * non-fusion based controllers | |
5151 | */ | |
5152 | instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES; | |
5153 | instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES; | |
cd50ba8e | 5154 | /* Get operational params, sge flags, send init cmd to controller */ |
5155 | if (instance->instancet->init_adapter(instance)) | |
eb1b1237 | 5156 | goto fail_init_adapter; |
cd50ba8e | 5157 | |
18103efc TH |
5158 | if (instance->msix_vectors ? |
5159 | megasas_setup_irqs_msix(instance, 1) : | |
5160 | megasas_setup_irqs_ioapic(instance)) | |
5161 | goto fail_init_adapter; | |
258c3af2 | 5162 | |
d3557fc8 | 5163 | instance->instancet->enable_intr(instance); |
cd50ba8e | 5164 | |
13f30771 | 5165 | dev_info(&instance->pdev->dev, "INIT adapter done\n"); |
cd50ba8e | 5166 | |
3761cb4c | 5167 | megasas_setup_jbod_map(instance); |
5168 | ||
39a98554 | 5169 | /** for passthrough |
da0dc9fb BH |
5170 | * the following function will get the PD LIST. |
5171 | */ | |
5172 | memset(instance->pd_list, 0, | |
81e403ce | 5173 | (MEGASAS_MAX_PD * sizeof(struct megasas_pd_list))); |
58968fc8 | 5174 | if (megasas_get_pd_list(instance) < 0) { |
1be18254 | 5175 | dev_err(&instance->pdev->dev, "failed to get PD list\n"); |
d3557fc8 | 5176 | goto fail_get_pd_list; |
58968fc8 | 5177 | } |
81e403ce | 5178 | |
bdc6fb8d | 5179 | memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS); |
21c9e160 | 5180 | if (megasas_ld_list_query(instance, |
5181 | MR_LD_QUERY_TYPE_EXPOSED_TO_HOST)) | |
5182 | megasas_get_ld_list(instance); | |
bdc6fb8d | 5183 | |
c4a3e0a5 BS |
5184 | /* |
5185 | * Compute the max allowed sectors per IO: The controller info has two | |
5186 | * limits on max sectors. Driver should use the minimum of these two. | |
5187 | * | |
5188 | * 1 << stripe_sz_ops.min = max sectors per strip | |
5189 | * | |
5190 | * Note that older firmwares ( < FW ver 30) didn't report information | |
5191 | * to calculate max_sectors_1. So the number ended up as zero always. | |
5192 | */ | |
14faea9f | 5193 | tmp_sectors = 0; |
51087a86 | 5194 | ctrl_info = instance->ctrl_info; |
c4a3e0a5 | 5195 | |
51087a86 SS |
5196 | max_sectors_1 = (1 << ctrl_info->stripe_sz_ops.min) * |
5197 | le16_to_cpu(ctrl_info->max_strips_per_io); | |
5198 | max_sectors_2 = le32_to_cpu(ctrl_info->max_request_size); | |
404a8a1a | 5199 | |
da0dc9fb | 5200 | tmp_sectors = min_t(u32, max_sectors_1, max_sectors_2); |
bc93d425 | 5201 | |
8f67c8c5 SS |
5202 | instance->peerIsPresent = ctrl_info->cluster.peerIsPresent; |
5203 | instance->passive = ctrl_info->cluster.passive; | |
5204 | memcpy(instance->clusterId, ctrl_info->clusterId, sizeof(instance->clusterId)); | |
51087a86 SS |
5205 | instance->UnevenSpanSupport = |
5206 | ctrl_info->adapterOperations2.supportUnevenSpans; | |
5207 | if (instance->UnevenSpanSupport) { | |
5208 | struct fusion_context *fusion = instance->ctrl_context; | |
51087a86 SS |
5209 | if (MR_ValidateMapInfo(instance)) |
5210 | fusion->fast_path_io = 1; | |
5211 | else | |
5212 | fusion->fast_path_io = 0; | |
fc62b3fc | 5213 | |
51087a86 SS |
5214 | } |
5215 | if (ctrl_info->host_interface.SRIOV) { | |
92bb6505 | 5216 | instance->requestorId = ctrl_info->iov.requestorId; |
5217 | if (instance->pdev->device == PCI_DEVICE_ID_LSI_PLASMA) { | |
5218 | if (!ctrl_info->adapterOperations2.activePassive) | |
5219 | instance->PlasmaFW111 = 1; | |
5220 | ||
5221 | dev_info(&instance->pdev->dev, "SR-IOV: firmware type: %s\n", | |
5222 | instance->PlasmaFW111 ? "1.11" : "new"); | |
5223 | ||
5224 | if (instance->PlasmaFW111) { | |
5225 | iovPtr = (struct IOV_111 *) | |
5226 | ((unsigned char *)ctrl_info + IOV_111_OFFSET); | |
5227 | instance->requestorId = iovPtr->requestorId; | |
5228 | } | |
fc62b3fc | 5229 | } |
92bb6505 | 5230 | dev_info(&instance->pdev->dev, "SRIOV: VF requestorId %d\n", |
5231 | instance->requestorId); | |
51087a86 SS |
5232 | } |
5233 | ||
51087a86 SS |
5234 | instance->crash_dump_fw_support = |
5235 | ctrl_info->adapterOperations3.supportCrashDump; | |
5236 | instance->crash_dump_drv_support = | |
5237 | (instance->crash_dump_fw_support && | |
5238 | instance->crash_dump_buf); | |
d88da09a | 5239 | if (instance->crash_dump_drv_support) |
51087a86 SS |
5240 | megasas_set_crash_dump_params(instance, |
5241 | MR_CRASH_BUF_TURN_OFF); | |
5242 | ||
d88da09a | 5243 | else { |
51087a86 SS |
5244 | if (instance->crash_dump_buf) |
5245 | pci_free_consistent(instance->pdev, | |
5246 | CRASH_DMA_BUF_SIZE, | |
5247 | instance->crash_dump_buf, | |
5248 | instance->crash_dump_h); | |
5249 | instance->crash_dump_buf = NULL; | |
14faea9f | 5250 | } |
7497cde8 | 5251 | |
d88da09a SS |
5252 | |
5253 | dev_info(&instance->pdev->dev, | |
5254 | "pci id\t\t: (0x%04x)/(0x%04x)/(0x%04x)/(0x%04x)\n", | |
5255 | le16_to_cpu(ctrl_info->pci.vendor_id), | |
5256 | le16_to_cpu(ctrl_info->pci.device_id), | |
5257 | le16_to_cpu(ctrl_info->pci.sub_vendor_id), | |
5258 | le16_to_cpu(ctrl_info->pci.sub_device_id)); | |
5259 | dev_info(&instance->pdev->dev, "unevenspan support : %s\n", | |
5260 | instance->UnevenSpanSupport ? "yes" : "no"); | |
d88da09a SS |
5261 | dev_info(&instance->pdev->dev, "firmware crash dump : %s\n", |
5262 | instance->crash_dump_drv_support ? "yes" : "no"); | |
3761cb4c | 5263 | dev_info(&instance->pdev->dev, "jbod sync map : %s\n", |
5264 | instance->use_seqnum_jbod_fp ? "yes" : "no"); | |
d88da09a SS |
5265 | |
5266 | ||
14faea9f | 5267 | instance->max_sectors_per_req = instance->max_num_sge * |
357ae967 | 5268 | SGE_BUFFER_SIZE / 512; |
14faea9f | 5269 | if (tmp_sectors && (instance->max_sectors_per_req > tmp_sectors)) |
5270 | instance->max_sectors_per_req = tmp_sectors; | |
c4a3e0a5 | 5271 | |
ae09a6c1 SS |
5272 | /* Check for valid throttlequeuedepth module parameter */ |
5273 | if (throttlequeuedepth && | |
5274 | throttlequeuedepth <= instance->max_scsi_cmds) | |
5275 | instance->throttlequeuedepth = throttlequeuedepth; | |
5276 | else | |
5277 | instance->throttlequeuedepth = | |
5278 | MEGASAS_THROTTLE_QUEUE_DEPTH; | |
5279 | ||
e3d178ca SS |
5280 | if (resetwaittime > MEGASAS_RESET_WAIT_TIME) |
5281 | resetwaittime = MEGASAS_RESET_WAIT_TIME; | |
5282 | ||
5283 | if ((scmd_timeout < 10) || (scmd_timeout > MEGASAS_DEFAULT_CMD_TIMEOUT)) | |
5284 | scmd_timeout = MEGASAS_DEFAULT_CMD_TIMEOUT; | |
ad84db2e | 5285 | |
229fe47c | 5286 | /* Launch SR-IOV heartbeat timer */ |
5287 | if (instance->requestorId) { | |
5288 | if (!megasas_sriov_start_heartbeat(instance, 1)) | |
5289 | megasas_start_timer(instance, | |
5290 | &instance->sriov_heartbeat_timer, | |
5291 | megasas_sriov_heartbeat_handler, | |
5292 | MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF); | |
5293 | else | |
5294 | instance->skip_heartbeat_timer_del = 1; | |
5295 | } | |
5296 | ||
c4a3e0a5 BS |
5297 | return 0; |
5298 | ||
d3557fc8 SS |
5299 | fail_get_pd_list: |
5300 | instance->instancet->disable_intr(instance); | |
18103efc | 5301 | fail_init_adapter: |
fad119b7 HR |
5302 | megasas_destroy_irqs(instance); |
5303 | fail_setup_irqs: | |
d3557fc8 | 5304 | if (instance->msix_vectors) |
fad119b7 | 5305 | pci_free_irq_vectors(instance->pdev); |
d3557fc8 | 5306 | instance->msix_vectors = 0; |
cd50ba8e | 5307 | fail_ready_state: |
51087a86 SS |
5308 | kfree(instance->ctrl_info); |
5309 | instance->ctrl_info = NULL; | |
c4a3e0a5 BS |
5310 | iounmap(instance->reg_set); |
5311 | ||
5312 | fail_ioremap: | |
e7f85168 | 5313 | pci_release_selected_regions(instance->pdev, 1<<instance->bar); |
c4a3e0a5 BS |
5314 | |
5315 | return -EINVAL; | |
5316 | } | |
5317 | ||
5318 | /** | |
5319 | * megasas_release_mfi - Reverses the FW initialization | |
4b63b286 | 5320 | * @instance: Adapter soft state |
c4a3e0a5 BS |
5321 | */ |
5322 | static void megasas_release_mfi(struct megasas_instance *instance) | |
5323 | { | |
9c915a8c | 5324 | u32 reply_q_sz = sizeof(u32) *(instance->max_mfi_cmds + 1); |
c4a3e0a5 | 5325 | |
9c915a8c | 5326 | if (instance->reply_queue) |
5327 | pci_free_consistent(instance->pdev, reply_q_sz, | |
c4a3e0a5 BS |
5328 | instance->reply_queue, instance->reply_queue_h); |
5329 | ||
5330 | megasas_free_cmds(instance); | |
5331 | ||
5332 | iounmap(instance->reg_set); | |
5333 | ||
e7f85168 | 5334 | pci_release_selected_regions(instance->pdev, 1<<instance->bar); |
c4a3e0a5 BS |
5335 | } |
5336 | ||
5337 | /** | |
5338 | * megasas_get_seq_num - Gets latest event sequence numbers | |
5339 | * @instance: Adapter soft state | |
5340 | * @eli: FW event log sequence numbers information | |
5341 | * | |
5342 | * FW maintains a log of all events in a non-volatile area. Upper layers would | |
5343 | * usually find out the latest sequence number of the events, the seq number at | |
5344 | * the boot etc. They would "read" all the events below the latest seq number | |
5345 | * by issuing a direct fw cmd (DCMD). For the future events (beyond latest seq | |
5346 | * number), they would subsribe to AEN (asynchronous event notification) and | |
5347 | * wait for the events to happen. | |
5348 | */ | |
5349 | static int | |
5350 | megasas_get_seq_num(struct megasas_instance *instance, | |
5351 | struct megasas_evt_log_info *eli) | |
5352 | { | |
5353 | struct megasas_cmd *cmd; | |
5354 | struct megasas_dcmd_frame *dcmd; | |
5355 | struct megasas_evt_log_info *el_info; | |
5356 | dma_addr_t el_info_h = 0; | |
5357 | ||
5358 | cmd = megasas_get_cmd(instance); | |
5359 | ||
5360 | if (!cmd) { | |
5361 | return -ENOMEM; | |
5362 | } | |
5363 | ||
5364 | dcmd = &cmd->frame->dcmd; | |
5365 | el_info = pci_alloc_consistent(instance->pdev, | |
5366 | sizeof(struct megasas_evt_log_info), | |
5367 | &el_info_h); | |
5368 | ||
5369 | if (!el_info) { | |
5370 | megasas_return_cmd(instance, cmd); | |
5371 | return -ENOMEM; | |
5372 | } | |
5373 | ||
5374 | memset(el_info, 0, sizeof(*el_info)); | |
5375 | memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); | |
5376 | ||
5377 | dcmd->cmd = MFI_CMD_DCMD; | |
5378 | dcmd->cmd_status = 0x0; | |
5379 | dcmd->sge_count = 1; | |
94cd65dd | 5380 | dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_READ); |
c4a3e0a5 | 5381 | dcmd->timeout = 0; |
780a3762 | 5382 | dcmd->pad_0 = 0; |
94cd65dd SS |
5383 | dcmd->data_xfer_len = cpu_to_le32(sizeof(struct megasas_evt_log_info)); |
5384 | dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_EVENT_GET_INFO); | |
5385 | dcmd->sgl.sge32[0].phys_addr = cpu_to_le32(el_info_h); | |
5386 | dcmd->sgl.sge32[0].length = cpu_to_le32(sizeof(struct megasas_evt_log_info)); | |
c4a3e0a5 | 5387 | |
6d40afbc SS |
5388 | if (megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS) == |
5389 | DCMD_SUCCESS) { | |
cfbe7554 SS |
5390 | /* |
5391 | * Copy the data back into callers buffer | |
5392 | */ | |
48100b0e CH |
5393 | eli->newest_seq_num = el_info->newest_seq_num; |
5394 | eli->oldest_seq_num = el_info->oldest_seq_num; | |
5395 | eli->clear_seq_num = el_info->clear_seq_num; | |
5396 | eli->shutdown_seq_num = el_info->shutdown_seq_num; | |
5397 | eli->boot_seq_num = el_info->boot_seq_num; | |
6d40afbc SS |
5398 | } else |
5399 | dev_err(&instance->pdev->dev, "DCMD failed " | |
5400 | "from %s\n", __func__); | |
c4a3e0a5 BS |
5401 | |
5402 | pci_free_consistent(instance->pdev, sizeof(struct megasas_evt_log_info), | |
5403 | el_info, el_info_h); | |
5404 | ||
4026e9aa | 5405 | megasas_return_cmd(instance, cmd); |
c4a3e0a5 BS |
5406 | |
5407 | return 0; | |
5408 | } | |
5409 | ||
5410 | /** | |
5411 | * megasas_register_aen - Registers for asynchronous event notification | |
5412 | * @instance: Adapter soft state | |
5413 | * @seq_num: The starting sequence number | |
5414 | * @class_locale: Class of the event | |
5415 | * | |
5416 | * This function subscribes for AEN for events beyond the @seq_num. It requests | |
5417 | * to be notified if and only if the event is of type @class_locale | |
5418 | */ | |
5419 | static int | |
5420 | megasas_register_aen(struct megasas_instance *instance, u32 seq_num, | |
5421 | u32 class_locale_word) | |
5422 | { | |
5423 | int ret_val; | |
5424 | struct megasas_cmd *cmd; | |
5425 | struct megasas_dcmd_frame *dcmd; | |
5426 | union megasas_evt_class_locale curr_aen; | |
5427 | union megasas_evt_class_locale prev_aen; | |
5428 | ||
5429 | /* | |
5430 | * If there an AEN pending already (aen_cmd), check if the | |
5431 | * class_locale of that pending AEN is inclusive of the new | |
5432 | * AEN request we currently have. If it is, then we don't have | |
5433 | * to do anything. In other words, whichever events the current | |
5434 | * AEN request is subscribing to, have already been subscribed | |
5435 | * to. | |
5436 | * | |
5437 | * If the old_cmd is _not_ inclusive, then we have to abort | |
5438 | * that command, form a class_locale that is superset of both | |
5439 | * old and current and re-issue to the FW | |
5440 | */ | |
5441 | ||
5442 | curr_aen.word = class_locale_word; | |
5443 | ||
5444 | if (instance->aen_cmd) { | |
5445 | ||
a9555534 CH |
5446 | prev_aen.word = |
5447 | le32_to_cpu(instance->aen_cmd->frame->dcmd.mbox.w[1]); | |
c4a3e0a5 BS |
5448 | |
5449 | /* | |
5450 | * A class whose enum value is smaller is inclusive of all | |
5451 | * higher values. If a PROGRESS (= -1) was previously | |
5452 | * registered, then a new registration requests for higher | |
5453 | * classes need not be sent to FW. They are automatically | |
5454 | * included. | |
5455 | * | |
5456 | * Locale numbers don't have such hierarchy. They are bitmap | |
5457 | * values | |
5458 | */ | |
5459 | if ((prev_aen.members.class <= curr_aen.members.class) && | |
3993a862 | 5460 | !((prev_aen.members.locale & curr_aen.members.locale) ^ |
c4a3e0a5 BS |
5461 | curr_aen.members.locale)) { |
5462 | /* | |
5463 | * Previously issued event registration includes | |
5464 | * current request. Nothing to do. | |
5465 | */ | |
5466 | return 0; | |
5467 | } else { | |
3993a862 | 5468 | curr_aen.members.locale |= prev_aen.members.locale; |
c4a3e0a5 BS |
5469 | |
5470 | if (prev_aen.members.class < curr_aen.members.class) | |
5471 | curr_aen.members.class = prev_aen.members.class; | |
5472 | ||
5473 | instance->aen_cmd->abort_aen = 1; | |
5474 | ret_val = megasas_issue_blocked_abort_cmd(instance, | |
5475 | instance-> | |
cfbe7554 | 5476 | aen_cmd, 30); |
c4a3e0a5 BS |
5477 | |
5478 | if (ret_val) { | |
1be18254 | 5479 | dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to abort " |
c4a3e0a5 BS |
5480 | "previous AEN command\n"); |
5481 | return ret_val; | |
5482 | } | |
5483 | } | |
5484 | } | |
5485 | ||
5486 | cmd = megasas_get_cmd(instance); | |
5487 | ||
5488 | if (!cmd) | |
5489 | return -ENOMEM; | |
5490 | ||
5491 | dcmd = &cmd->frame->dcmd; | |
5492 | ||
5493 | memset(instance->evt_detail, 0, sizeof(struct megasas_evt_detail)); | |
5494 | ||
5495 | /* | |
5496 | * Prepare DCMD for aen registration | |
5497 | */ | |
5498 | memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); | |
5499 | ||
5500 | dcmd->cmd = MFI_CMD_DCMD; | |
5501 | dcmd->cmd_status = 0x0; | |
5502 | dcmd->sge_count = 1; | |
94cd65dd | 5503 | dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_READ); |
c4a3e0a5 | 5504 | dcmd->timeout = 0; |
780a3762 | 5505 | dcmd->pad_0 = 0; |
94cd65dd SS |
5506 | dcmd->data_xfer_len = cpu_to_le32(sizeof(struct megasas_evt_detail)); |
5507 | dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_EVENT_WAIT); | |
5508 | dcmd->mbox.w[0] = cpu_to_le32(seq_num); | |
39a98554 | 5509 | instance->last_seq_num = seq_num; |
94cd65dd SS |
5510 | dcmd->mbox.w[1] = cpu_to_le32(curr_aen.word); |
5511 | dcmd->sgl.sge32[0].phys_addr = cpu_to_le32(instance->evt_detail_h); | |
5512 | dcmd->sgl.sge32[0].length = cpu_to_le32(sizeof(struct megasas_evt_detail)); | |
c4a3e0a5 | 5513 | |
f4c9a131 YB |
5514 | if (instance->aen_cmd != NULL) { |
5515 | megasas_return_cmd(instance, cmd); | |
5516 | return 0; | |
5517 | } | |
5518 | ||
c4a3e0a5 BS |
5519 | /* |
5520 | * Store reference to the cmd used to register for AEN. When an | |
5521 | * application wants us to register for AEN, we have to abort this | |
5522 | * cmd and re-register with a new EVENT LOCALE supplied by that app | |
5523 | */ | |
5524 | instance->aen_cmd = cmd; | |
5525 | ||
5526 | /* | |
5527 | * Issue the aen registration frame | |
5528 | */ | |
9c915a8c | 5529 | instance->instancet->issue_dcmd(instance, cmd); |
c4a3e0a5 BS |
5530 | |
5531 | return 0; | |
5532 | } | |
5533 | ||
5534 | /** | |
5535 | * megasas_start_aen - Subscribes to AEN during driver load time | |
5536 | * @instance: Adapter soft state | |
5537 | */ | |
5538 | static int megasas_start_aen(struct megasas_instance *instance) | |
5539 | { | |
5540 | struct megasas_evt_log_info eli; | |
5541 | union megasas_evt_class_locale class_locale; | |
5542 | ||
5543 | /* | |
5544 | * Get the latest sequence number from FW | |
5545 | */ | |
5546 | memset(&eli, 0, sizeof(eli)); | |
5547 | ||
5548 | if (megasas_get_seq_num(instance, &eli)) | |
5549 | return -1; | |
5550 | ||
5551 | /* | |
5552 | * Register AEN with FW for latest sequence number plus 1 | |
5553 | */ | |
5554 | class_locale.members.reserved = 0; | |
5555 | class_locale.members.locale = MR_EVT_LOCALE_ALL; | |
5556 | class_locale.members.class = MR_EVT_CLASS_DEBUG; | |
5557 | ||
94cd65dd | 5558 | return megasas_register_aen(instance, |
48100b0e | 5559 | le32_to_cpu(eli.newest_seq_num) + 1, |
94cd65dd | 5560 | class_locale.word); |
c4a3e0a5 BS |
5561 | } |
5562 | ||
5563 | /** | |
5564 | * megasas_io_attach - Attaches this driver to SCSI mid-layer | |
5565 | * @instance: Adapter soft state | |
5566 | */ | |
5567 | static int megasas_io_attach(struct megasas_instance *instance) | |
5568 | { | |
5569 | struct Scsi_Host *host = instance->host; | |
5570 | ||
5571 | /* | |
5572 | * Export parameters required by SCSI mid-layer | |
5573 | */ | |
c4a3e0a5 | 5574 | host->unique_id = instance->unique_id; |
ae09a6c1 | 5575 | host->can_queue = instance->max_scsi_cmds; |
c4a3e0a5 BS |
5576 | host->this_id = instance->init_id; |
5577 | host->sg_tablesize = instance->max_num_sge; | |
42a8d2b3 | 5578 | |
5579 | if (instance->fw_support_ieee) | |
5580 | instance->max_sectors_per_req = MEGASAS_MAX_SECTORS_IEEE; | |
5581 | ||
1fd10685 YB |
5582 | /* |
5583 | * Check if the module parameter value for max_sectors can be used | |
5584 | */ | |
5585 | if (max_sectors && max_sectors < instance->max_sectors_per_req) | |
5586 | instance->max_sectors_per_req = max_sectors; | |
5587 | else { | |
5588 | if (max_sectors) { | |
5589 | if (((instance->pdev->device == | |
5590 | PCI_DEVICE_ID_LSI_SAS1078GEN2) || | |
5591 | (instance->pdev->device == | |
5592 | PCI_DEVICE_ID_LSI_SAS0079GEN2)) && | |
5593 | (max_sectors <= MEGASAS_MAX_SECTORS)) { | |
5594 | instance->max_sectors_per_req = max_sectors; | |
5595 | } else { | |
1be18254 | 5596 | dev_info(&instance->pdev->dev, "max_sectors should be > 0" |
1fd10685 YB |
5597 | "and <= %d (or < 1MB for GEN2 controller)\n", |
5598 | instance->max_sectors_per_req); | |
5599 | } | |
5600 | } | |
5601 | } | |
5602 | ||
c4a3e0a5 | 5603 | host->max_sectors = instance->max_sectors_per_req; |
9c915a8c | 5604 | host->cmd_per_lun = MEGASAS_DEFAULT_CMD_PER_LUN; |
c4a3e0a5 BS |
5605 | host->max_channel = MEGASAS_MAX_CHANNELS - 1; |
5606 | host->max_id = MEGASAS_MAX_DEV_PER_CHANNEL; | |
5607 | host->max_lun = MEGASAS_MAX_LUN; | |
122da302 | 5608 | host->max_cmd_len = 16; |
c4a3e0a5 BS |
5609 | |
5610 | /* | |
5611 | * Notify the mid-layer about the new controller | |
5612 | */ | |
5613 | if (scsi_add_host(host, &instance->pdev->dev)) { | |
4026e9aa SS |
5614 | dev_err(&instance->pdev->dev, |
5615 | "Failed to add host from %s %d\n", | |
5616 | __func__, __LINE__); | |
c4a3e0a5 BS |
5617 | return -ENODEV; |
5618 | } | |
5619 | ||
c4a3e0a5 BS |
5620 | return 0; |
5621 | } | |
5622 | ||
31ea7088 | 5623 | static int |
5624 | megasas_set_dma_mask(struct pci_dev *pdev) | |
5625 | { | |
5626 | /* | |
da0dc9fb | 5627 | * All our controllers are capable of performing 64-bit DMA |
31ea7088 | 5628 | */ |
5629 | if (IS_DMA64) { | |
6a35528a | 5630 | if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0) { |
31ea7088 | 5631 | |
284901a9 | 5632 | if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0) |
31ea7088 | 5633 | goto fail_set_dma_mask; |
5634 | } | |
5635 | } else { | |
284901a9 | 5636 | if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0) |
31ea7088 | 5637 | goto fail_set_dma_mask; |
5638 | } | |
46de63e2 SS |
5639 | /* |
5640 | * Ensure that all data structures are allocated in 32-bit | |
5641 | * memory. | |
5642 | */ | |
5643 | if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)) != 0) { | |
5644 | /* Try 32bit DMA mask and 32 bit Consistent dma mask */ | |
5645 | if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) | |
5646 | && !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) | |
5647 | dev_info(&pdev->dev, "set 32bit DMA mask" | |
5648 | "and 32 bit consistent mask\n"); | |
5649 | else | |
5650 | goto fail_set_dma_mask; | |
5651 | } | |
94cd65dd | 5652 | |
31ea7088 | 5653 | return 0; |
5654 | ||
5655 | fail_set_dma_mask: | |
5656 | return 1; | |
5657 | } | |
5658 | ||
c4a3e0a5 BS |
5659 | /** |
5660 | * megasas_probe_one - PCI hotplug entry point | |
5661 | * @pdev: PCI device structure | |
0d49016b | 5662 | * @id: PCI ids of supported hotplugged adapter |
c4a3e0a5 | 5663 | */ |
6f039790 GKH |
5664 | static int megasas_probe_one(struct pci_dev *pdev, |
5665 | const struct pci_device_id *id) | |
c4a3e0a5 | 5666 | { |
d3557fc8 | 5667 | int rval, pos; |
c4a3e0a5 BS |
5668 | struct Scsi_Host *host; |
5669 | struct megasas_instance *instance; | |
66192dfe | 5670 | u16 control = 0; |
51087a86 | 5671 | struct fusion_context *fusion = NULL; |
66192dfe | 5672 | |
5673 | /* Reset MSI-X in the kdump kernel */ | |
5674 | if (reset_devices) { | |
5675 | pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX); | |
5676 | if (pos) { | |
99369065 | 5677 | pci_read_config_word(pdev, pos + PCI_MSIX_FLAGS, |
66192dfe | 5678 | &control); |
5679 | if (control & PCI_MSIX_FLAGS_ENABLE) { | |
5680 | dev_info(&pdev->dev, "resetting MSI-X\n"); | |
5681 | pci_write_config_word(pdev, | |
99369065 | 5682 | pos + PCI_MSIX_FLAGS, |
66192dfe | 5683 | control & |
5684 | ~PCI_MSIX_FLAGS_ENABLE); | |
5685 | } | |
5686 | } | |
5687 | } | |
c4a3e0a5 | 5688 | |
c4a3e0a5 BS |
5689 | /* |
5690 | * PCI prepping: enable device set bus mastering and dma mask | |
5691 | */ | |
aeab3fd7 | 5692 | rval = pci_enable_device_mem(pdev); |
c4a3e0a5 BS |
5693 | |
5694 | if (rval) { | |
5695 | return rval; | |
5696 | } | |
5697 | ||
5698 | pci_set_master(pdev); | |
5699 | ||
31ea7088 | 5700 | if (megasas_set_dma_mask(pdev)) |
5701 | goto fail_set_dma_mask; | |
c4a3e0a5 BS |
5702 | |
5703 | host = scsi_host_alloc(&megasas_template, | |
5704 | sizeof(struct megasas_instance)); | |
5705 | ||
5706 | if (!host) { | |
1be18254 | 5707 | dev_printk(KERN_DEBUG, &pdev->dev, "scsi_host_alloc failed\n"); |
c4a3e0a5 BS |
5708 | goto fail_alloc_instance; |
5709 | } | |
5710 | ||
5711 | instance = (struct megasas_instance *)host->hostdata; | |
5712 | memset(instance, 0, sizeof(*instance)); | |
da0dc9fb | 5713 | atomic_set(&instance->fw_reset_no_pci_access, 0); |
9c915a8c | 5714 | instance->pdev = pdev; |
c4a3e0a5 | 5715 | |
9c915a8c | 5716 | switch (instance->pdev->device) { |
5717 | case PCI_DEVICE_ID_LSI_FUSION: | |
229fe47c | 5718 | case PCI_DEVICE_ID_LSI_PLASMA: |
36807e67 | 5719 | case PCI_DEVICE_ID_LSI_INVADER: |
21d3c710 | 5720 | case PCI_DEVICE_ID_LSI_FURY: |
90c204bc | 5721 | case PCI_DEVICE_ID_LSI_INTRUDER: |
5722 | case PCI_DEVICE_ID_LSI_INTRUDER_24: | |
7364d34b | 5723 | case PCI_DEVICE_ID_LSI_CUTLASS_52: |
5724 | case PCI_DEVICE_ID_LSI_CUTLASS_53: | |
9c915a8c | 5725 | { |
51087a86 SS |
5726 | instance->ctrl_context_pages = |
5727 | get_order(sizeof(struct fusion_context)); | |
5728 | instance->ctrl_context = (void *)__get_free_pages(GFP_KERNEL, | |
5729 | instance->ctrl_context_pages); | |
9c915a8c | 5730 | if (!instance->ctrl_context) { |
1be18254 | 5731 | dev_printk(KERN_DEBUG, &pdev->dev, "Failed to allocate " |
9c915a8c | 5732 | "memory for Fusion context info\n"); |
5733 | goto fail_alloc_dma_buf; | |
5734 | } | |
5735 | fusion = instance->ctrl_context; | |
d009b576 SS |
5736 | memset(fusion, 0, |
5737 | ((1 << PAGE_SHIFT) << instance->ctrl_context_pages)); | |
5a8cb85b | 5738 | if ((instance->pdev->device == PCI_DEVICE_ID_LSI_FUSION) || |
5739 | (instance->pdev->device == PCI_DEVICE_ID_LSI_PLASMA)) | |
5740 | fusion->adapter_type = THUNDERBOLT_SERIES; | |
5741 | else | |
5742 | fusion->adapter_type = INVADER_SERIES; | |
9c915a8c | 5743 | } |
5744 | break; | |
5745 | default: /* For all other supported controllers */ | |
5746 | ||
5747 | instance->producer = | |
5748 | pci_alloc_consistent(pdev, sizeof(u32), | |
5749 | &instance->producer_h); | |
5750 | instance->consumer = | |
5751 | pci_alloc_consistent(pdev, sizeof(u32), | |
5752 | &instance->consumer_h); | |
5753 | ||
5754 | if (!instance->producer || !instance->consumer) { | |
4086eae5 | 5755 | dev_printk(KERN_DEBUG, &pdev->dev, "Failed to allocate " |
9c915a8c | 5756 | "memory for producer, consumer\n"); |
5757 | goto fail_alloc_dma_buf; | |
5758 | } | |
c4a3e0a5 | 5759 | |
9c915a8c | 5760 | *instance->producer = 0; |
5761 | *instance->consumer = 0; | |
5762 | break; | |
c4a3e0a5 BS |
5763 | } |
5764 | ||
fc62b3fc SS |
5765 | /* Crash dump feature related initialisation*/ |
5766 | instance->drv_buf_index = 0; | |
5767 | instance->drv_buf_alloc = 0; | |
5768 | instance->crash_dump_fw_support = 0; | |
5769 | instance->crash_dump_app_support = 0; | |
5770 | instance->fw_crash_state = UNAVAILABLE; | |
5771 | spin_lock_init(&instance->crashdump_lock); | |
5772 | instance->crash_dump_buf = NULL; | |
5773 | ||
c3518837 | 5774 | megasas_poll_wait_aen = 0; |
f4c9a131 | 5775 | instance->flag_ieee = 0; |
7e8a75f4 | 5776 | instance->ev = NULL; |
39a98554 | 5777 | instance->issuepend_done = 1; |
8a01a41d | 5778 | atomic_set(&instance->adprecovery, MEGASAS_HBA_OPERATIONAL); |
404a8a1a | 5779 | instance->is_imr = 0; |
c4a3e0a5 BS |
5780 | |
5781 | instance->evt_detail = pci_alloc_consistent(pdev, | |
5782 | sizeof(struct | |
5783 | megasas_evt_detail), | |
5784 | &instance->evt_detail_h); | |
5785 | ||
5786 | if (!instance->evt_detail) { | |
1be18254 | 5787 | dev_printk(KERN_DEBUG, &pdev->dev, "Failed to allocate memory for " |
c4a3e0a5 BS |
5788 | "event detail structure\n"); |
5789 | goto fail_alloc_dma_buf; | |
5790 | } | |
5791 | ||
c3e385a1 SS |
5792 | if (!reset_devices) { |
5793 | instance->system_info_buf = pci_zalloc_consistent(pdev, | |
5794 | sizeof(struct MR_DRV_SYSTEM_INFO), | |
5795 | &instance->system_info_h); | |
5796 | if (!instance->system_info_buf) | |
5797 | dev_info(&instance->pdev->dev, "Can't allocate system info buffer\n"); | |
5798 | ||
5799 | instance->pd_info = pci_alloc_consistent(pdev, | |
5800 | sizeof(struct MR_PD_INFO), &instance->pd_info_h); | |
2216c305 | 5801 | |
c3e385a1 SS |
5802 | if (!instance->pd_info) |
5803 | dev_err(&instance->pdev->dev, "Failed to alloc mem for pd_info\n"); | |
5804 | ||
5805 | instance->crash_dump_buf = pci_alloc_consistent(pdev, | |
5806 | CRASH_DMA_BUF_SIZE, | |
5807 | &instance->crash_dump_h); | |
5808 | if (!instance->crash_dump_buf) | |
5809 | dev_err(&pdev->dev, "Can't allocate Firmware " | |
5810 | "crash dump DMA buffer\n"); | |
5811 | } | |
2216c305 | 5812 | |
c4a3e0a5 BS |
5813 | /* |
5814 | * Initialize locks and queues | |
5815 | */ | |
5816 | INIT_LIST_HEAD(&instance->cmd_pool); | |
39a98554 | 5817 | INIT_LIST_HEAD(&instance->internal_reset_pending_q); |
c4a3e0a5 | 5818 | |
e4a082c7 SP |
5819 | atomic_set(&instance->fw_outstanding,0); |
5820 | ||
c4a3e0a5 BS |
5821 | init_waitqueue_head(&instance->int_cmd_wait_q); |
5822 | init_waitqueue_head(&instance->abort_cmd_wait_q); | |
5823 | ||
90dc9d98 | 5824 | spin_lock_init(&instance->mfi_pool_lock); |
39a98554 | 5825 | spin_lock_init(&instance->hba_lock); |
7343eb65 | 5826 | spin_lock_init(&instance->completion_lock); |
c4a3e0a5 | 5827 | |
9c915a8c | 5828 | mutex_init(&instance->reset_mutex); |
2216c305 | 5829 | mutex_init(&instance->hba_mutex); |
c4a3e0a5 BS |
5830 | |
5831 | /* | |
5832 | * Initialize PCI related and misc parameters | |
5833 | */ | |
c4a3e0a5 BS |
5834 | instance->host = host; |
5835 | instance->unique_id = pdev->bus->number << 8 | pdev->devfn; | |
5836 | instance->init_id = MEGASAS_DEFAULT_INIT_ID; | |
51087a86 | 5837 | instance->ctrl_info = NULL; |
c4a3e0a5 | 5838 | |
ae09a6c1 | 5839 | |
7bebf5c7 | 5840 | if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) || |
ae09a6c1 | 5841 | (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY)) |
f4c9a131 | 5842 | instance->flag_ieee = 1; |
7bebf5c7 | 5843 | |
658dcedb | 5844 | megasas_dbg_lvl = 0; |
05e9ebbe | 5845 | instance->flag = 0; |
0c79e681 | 5846 | instance->unload = 1; |
05e9ebbe | 5847 | instance->last_time = 0; |
39a98554 | 5848 | instance->disableOnlineCtrlReset = 1; |
bc93d425 | 5849 | instance->UnevenSpanSupport = 0; |
39a98554 | 5850 | |
5a8cb85b | 5851 | if (instance->ctrl_context) { |
9c915a8c | 5852 | INIT_WORK(&instance->work_init, megasas_fusion_ocr_wq); |
fc62b3fc SS |
5853 | INIT_WORK(&instance->crash_init, megasas_fusion_crash_dump_wq); |
5854 | } else | |
9c915a8c | 5855 | INIT_WORK(&instance->work_init, process_fw_state_change_wq); |
658dcedb | 5856 | |
0a77066a | 5857 | /* |
5858 | * Initialize MFI Firmware | |
5859 | */ | |
5860 | if (megasas_init_fw(instance)) | |
5861 | goto fail_init_mfi; | |
5862 | ||
229fe47c | 5863 | if (instance->requestorId) { |
5864 | if (instance->PlasmaFW111) { | |
5865 | instance->vf_affiliation_111 = | |
5866 | pci_alloc_consistent(pdev, sizeof(struct MR_LD_VF_AFFILIATION_111), | |
5867 | &instance->vf_affiliation_111_h); | |
5868 | if (!instance->vf_affiliation_111) | |
1be18254 | 5869 | dev_warn(&pdev->dev, "Can't allocate " |
229fe47c | 5870 | "memory for VF affiliation buffer\n"); |
5871 | } else { | |
5872 | instance->vf_affiliation = | |
5873 | pci_alloc_consistent(pdev, | |
5874 | (MAX_LOGICAL_DRIVES + 1) * | |
5875 | sizeof(struct MR_LD_VF_AFFILIATION), | |
5876 | &instance->vf_affiliation_h); | |
5877 | if (!instance->vf_affiliation) | |
1be18254 | 5878 | dev_warn(&pdev->dev, "Can't allocate " |
229fe47c | 5879 | "memory for VF affiliation buffer\n"); |
5880 | } | |
5881 | } | |
5882 | ||
c4a3e0a5 BS |
5883 | /* |
5884 | * Store instance in PCI softstate | |
5885 | */ | |
5886 | pci_set_drvdata(pdev, instance); | |
5887 | ||
5888 | /* | |
5889 | * Add this controller to megasas_mgmt_info structure so that it | |
5890 | * can be exported to management applications | |
5891 | */ | |
5892 | megasas_mgmt_info.count++; | |
5893 | megasas_mgmt_info.instance[megasas_mgmt_info.max_index] = instance; | |
5894 | megasas_mgmt_info.max_index++; | |
5895 | ||
541f90b7 | 5896 | /* |
5897 | * Register with SCSI mid-layer | |
5898 | */ | |
5899 | if (megasas_io_attach(instance)) | |
5900 | goto fail_io_attach; | |
5901 | ||
5902 | instance->unload = 0; | |
aa00832b SS |
5903 | /* |
5904 | * Trigger SCSI to scan our drives | |
5905 | */ | |
5906 | scsi_scan_host(host); | |
541f90b7 | 5907 | |
c4a3e0a5 BS |
5908 | /* |
5909 | * Initiate AEN (Asynchronous Event Notification) | |
5910 | */ | |
5911 | if (megasas_start_aen(instance)) { | |
1be18254 | 5912 | dev_printk(KERN_DEBUG, &pdev->dev, "start aen failed\n"); |
c4a3e0a5 BS |
5913 | goto fail_start_aen; |
5914 | } | |
5915 | ||
9ea81f81 AR |
5916 | /* Get current SR-IOV LD/VF affiliation */ |
5917 | if (instance->requestorId) | |
5918 | megasas_get_ld_vf_affiliation(instance, 1); | |
5919 | ||
c4a3e0a5 BS |
5920 | return 0; |
5921 | ||
da0dc9fb BH |
5922 | fail_start_aen: |
5923 | fail_io_attach: | |
c4a3e0a5 BS |
5924 | megasas_mgmt_info.count--; |
5925 | megasas_mgmt_info.instance[megasas_mgmt_info.max_index] = NULL; | |
5926 | megasas_mgmt_info.max_index--; | |
5927 | ||
d46a3ad6 | 5928 | instance->instancet->disable_intr(instance); |
d3557fc8 SS |
5929 | megasas_destroy_irqs(instance); |
5930 | ||
5a8cb85b | 5931 | if (instance->ctrl_context) |
eb1b1237 | 5932 | megasas_release_fusion(instance); |
5933 | else | |
5934 | megasas_release_mfi(instance); | |
c8e858fe | 5935 | if (instance->msix_vectors) |
fad119b7 | 5936 | pci_free_irq_vectors(instance->pdev); |
d3557fc8 | 5937 | fail_init_mfi: |
da0dc9fb | 5938 | fail_alloc_dma_buf: |
c4a3e0a5 BS |
5939 | if (instance->evt_detail) |
5940 | pci_free_consistent(pdev, sizeof(struct megasas_evt_detail), | |
5941 | instance->evt_detail, | |
5942 | instance->evt_detail_h); | |
5943 | ||
2216c305 SS |
5944 | if (instance->pd_info) |
5945 | pci_free_consistent(pdev, sizeof(struct MR_PD_INFO), | |
5946 | instance->pd_info, | |
5947 | instance->pd_info_h); | |
eb1b1237 | 5948 | if (instance->producer) |
c4a3e0a5 BS |
5949 | pci_free_consistent(pdev, sizeof(u32), instance->producer, |
5950 | instance->producer_h); | |
5951 | if (instance->consumer) | |
5952 | pci_free_consistent(pdev, sizeof(u32), instance->consumer, | |
5953 | instance->consumer_h); | |
5954 | scsi_host_put(host); | |
5955 | ||
da0dc9fb BH |
5956 | fail_alloc_instance: |
5957 | fail_set_dma_mask: | |
c4a3e0a5 BS |
5958 | pci_disable_device(pdev); |
5959 | ||
5960 | return -ENODEV; | |
5961 | } | |
5962 | ||
5963 | /** | |
5964 | * megasas_flush_cache - Requests FW to flush all its caches | |
5965 | * @instance: Adapter soft state | |
5966 | */ | |
5967 | static void megasas_flush_cache(struct megasas_instance *instance) | |
5968 | { | |
5969 | struct megasas_cmd *cmd; | |
5970 | struct megasas_dcmd_frame *dcmd; | |
5971 | ||
8a01a41d | 5972 | if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) |
39a98554 | 5973 | return; |
5974 | ||
c4a3e0a5 BS |
5975 | cmd = megasas_get_cmd(instance); |
5976 | ||
5977 | if (!cmd) | |
5978 | return; | |
5979 | ||
5980 | dcmd = &cmd->frame->dcmd; | |
5981 | ||
5982 | memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); | |
5983 | ||
5984 | dcmd->cmd = MFI_CMD_DCMD; | |
5985 | dcmd->cmd_status = 0x0; | |
5986 | dcmd->sge_count = 0; | |
94cd65dd | 5987 | dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_NONE); |
c4a3e0a5 | 5988 | dcmd->timeout = 0; |
780a3762 | 5989 | dcmd->pad_0 = 0; |
c4a3e0a5 | 5990 | dcmd->data_xfer_len = 0; |
94cd65dd | 5991 | dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_CACHE_FLUSH); |
c4a3e0a5 BS |
5992 | dcmd->mbox.b[0] = MR_FLUSH_CTRL_CACHE | MR_FLUSH_DISK_CACHE; |
5993 | ||
6d40afbc SS |
5994 | if (megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS) |
5995 | != DCMD_SUCCESS) { | |
5996 | dev_err(&instance->pdev->dev, | |
5997 | "return from %s %d\n", __func__, __LINE__); | |
5998 | return; | |
5999 | } | |
c4a3e0a5 | 6000 | |
4026e9aa | 6001 | megasas_return_cmd(instance, cmd); |
c4a3e0a5 BS |
6002 | } |
6003 | ||
6004 | /** | |
6005 | * megasas_shutdown_controller - Instructs FW to shutdown the controller | |
6006 | * @instance: Adapter soft state | |
31ea7088 | 6007 | * @opcode: Shutdown/Hibernate |
c4a3e0a5 | 6008 | */ |
31ea7088 | 6009 | static void megasas_shutdown_controller(struct megasas_instance *instance, |
6010 | u32 opcode) | |
c4a3e0a5 BS |
6011 | { |
6012 | struct megasas_cmd *cmd; | |
6013 | struct megasas_dcmd_frame *dcmd; | |
6014 | ||
8a01a41d | 6015 | if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) |
39a98554 | 6016 | return; |
6017 | ||
c4a3e0a5 BS |
6018 | cmd = megasas_get_cmd(instance); |
6019 | ||
6020 | if (!cmd) | |
6021 | return; | |
6022 | ||
6023 | if (instance->aen_cmd) | |
cfbe7554 | 6024 | megasas_issue_blocked_abort_cmd(instance, |
6d40afbc | 6025 | instance->aen_cmd, MFI_IO_TIMEOUT_SECS); |
9c915a8c | 6026 | if (instance->map_update_cmd) |
6027 | megasas_issue_blocked_abort_cmd(instance, | |
6d40afbc | 6028 | instance->map_update_cmd, MFI_IO_TIMEOUT_SECS); |
3761cb4c | 6029 | if (instance->jbod_seq_cmd) |
6030 | megasas_issue_blocked_abort_cmd(instance, | |
6d40afbc | 6031 | instance->jbod_seq_cmd, MFI_IO_TIMEOUT_SECS); |
3761cb4c | 6032 | |
c4a3e0a5 BS |
6033 | dcmd = &cmd->frame->dcmd; |
6034 | ||
6035 | memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); | |
6036 | ||
6037 | dcmd->cmd = MFI_CMD_DCMD; | |
6038 | dcmd->cmd_status = 0x0; | |
6039 | dcmd->sge_count = 0; | |
94cd65dd | 6040 | dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_NONE); |
c4a3e0a5 | 6041 | dcmd->timeout = 0; |
780a3762 | 6042 | dcmd->pad_0 = 0; |
c4a3e0a5 | 6043 | dcmd->data_xfer_len = 0; |
94cd65dd | 6044 | dcmd->opcode = cpu_to_le32(opcode); |
c4a3e0a5 | 6045 | |
6d40afbc SS |
6046 | if (megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS) |
6047 | != DCMD_SUCCESS) { | |
6048 | dev_err(&instance->pdev->dev, | |
6049 | "return from %s %d\n", __func__, __LINE__); | |
6050 | return; | |
6051 | } | |
c4a3e0a5 | 6052 | |
4026e9aa | 6053 | megasas_return_cmd(instance, cmd); |
c4a3e0a5 BS |
6054 | } |
6055 | ||
33139b21 | 6056 | #ifdef CONFIG_PM |
31ea7088 | 6057 | /** |
ad84db2e | 6058 | * megasas_suspend - driver suspend entry point |
6059 | * @pdev: PCI device structure | |
31ea7088 | 6060 | * @state: PCI power state to suspend routine |
6061 | */ | |
33139b21 | 6062 | static int |
31ea7088 | 6063 | megasas_suspend(struct pci_dev *pdev, pm_message_t state) |
6064 | { | |
6065 | struct Scsi_Host *host; | |
6066 | struct megasas_instance *instance; | |
6067 | ||
6068 | instance = pci_get_drvdata(pdev); | |
6069 | host = instance->host; | |
0c79e681 | 6070 | instance->unload = 1; |
31ea7088 | 6071 | |
229fe47c | 6072 | /* Shutdown SR-IOV heartbeat timer */ |
6073 | if (instance->requestorId && !instance->skip_heartbeat_timer_del) | |
6074 | del_timer_sync(&instance->sriov_heartbeat_timer); | |
6075 | ||
31ea7088 | 6076 | megasas_flush_cache(instance); |
6077 | megasas_shutdown_controller(instance, MR_DCMD_HIBERNATE_SHUTDOWN); | |
7e8a75f4 YB |
6078 | |
6079 | /* cancel the delayed work if this work still in queue */ | |
6080 | if (instance->ev != NULL) { | |
6081 | struct megasas_aen_event *ev = instance->ev; | |
c1d390d8 | 6082 | cancel_delayed_work_sync(&ev->hotplug_work); |
7e8a75f4 YB |
6083 | instance->ev = NULL; |
6084 | } | |
6085 | ||
31ea7088 | 6086 | tasklet_kill(&instance->isr_tasklet); |
6087 | ||
6088 | pci_set_drvdata(instance->pdev, instance); | |
d46a3ad6 | 6089 | instance->instancet->disable_intr(instance); |
c8e858fe | 6090 | |
d3557fc8 SS |
6091 | megasas_destroy_irqs(instance); |
6092 | ||
c8e858fe | 6093 | if (instance->msix_vectors) |
fad119b7 | 6094 | pci_free_irq_vectors(instance->pdev); |
31ea7088 | 6095 | |
6096 | pci_save_state(pdev); | |
6097 | pci_disable_device(pdev); | |
6098 | ||
6099 | pci_set_power_state(pdev, pci_choose_state(pdev, state)); | |
6100 | ||
6101 | return 0; | |
6102 | } | |
6103 | ||
6104 | /** | |
6105 | * megasas_resume- driver resume entry point | |
6106 | * @pdev: PCI device structure | |
6107 | */ | |
33139b21 | 6108 | static int |
31ea7088 | 6109 | megasas_resume(struct pci_dev *pdev) |
6110 | { | |
d3557fc8 | 6111 | int rval; |
31ea7088 | 6112 | struct Scsi_Host *host; |
6113 | struct megasas_instance *instance; | |
fad119b7 | 6114 | int irq_flags = PCI_IRQ_LEGACY; |
31ea7088 | 6115 | |
6116 | instance = pci_get_drvdata(pdev); | |
6117 | host = instance->host; | |
6118 | pci_set_power_state(pdev, PCI_D0); | |
6119 | pci_enable_wake(pdev, PCI_D0, 0); | |
6120 | pci_restore_state(pdev); | |
6121 | ||
6122 | /* | |
6123 | * PCI prepping: enable device set bus mastering and dma mask | |
6124 | */ | |
aeab3fd7 | 6125 | rval = pci_enable_device_mem(pdev); |
31ea7088 | 6126 | |
6127 | if (rval) { | |
1be18254 | 6128 | dev_err(&pdev->dev, "Enable device failed\n"); |
31ea7088 | 6129 | return rval; |
6130 | } | |
6131 | ||
6132 | pci_set_master(pdev); | |
6133 | ||
6134 | if (megasas_set_dma_mask(pdev)) | |
6135 | goto fail_set_dma_mask; | |
6136 | ||
6137 | /* | |
6138 | * Initialize MFI Firmware | |
6139 | */ | |
6140 | ||
31ea7088 | 6141 | atomic_set(&instance->fw_outstanding, 0); |
6142 | ||
6143 | /* | |
6144 | * We expect the FW state to be READY | |
6145 | */ | |
058a8fac | 6146 | if (megasas_transition_to_ready(instance, 0)) |
31ea7088 | 6147 | goto fail_ready_state; |
6148 | ||
3f1abce4 | 6149 | /* Now re-enable MSI-X */ |
fad119b7 HR |
6150 | if (instance->msix_vectors) { |
6151 | irq_flags = PCI_IRQ_MSIX; | |
6152 | if (smp_affinity_enable) | |
6153 | irq_flags |= PCI_IRQ_AFFINITY; | |
6154 | } | |
6155 | rval = pci_alloc_irq_vectors(instance->pdev, 1, | |
6156 | instance->msix_vectors ? | |
6157 | instance->msix_vectors : 1, irq_flags); | |
6158 | if (rval < 0) | |
dd088128 | 6159 | goto fail_reenable_msix; |
3f1abce4 | 6160 | |
5a8cb85b | 6161 | if (instance->ctrl_context) { |
9c915a8c | 6162 | megasas_reset_reply_desc(instance); |
6163 | if (megasas_ioc_init_fusion(instance)) { | |
6164 | megasas_free_cmds(instance); | |
6165 | megasas_free_cmds_fusion(instance); | |
6166 | goto fail_init_mfi; | |
6167 | } | |
6168 | if (!megasas_get_map_info(instance)) | |
6169 | megasas_sync_map_info(instance); | |
5a8cb85b | 6170 | } else { |
9c915a8c | 6171 | *instance->producer = 0; |
6172 | *instance->consumer = 0; | |
6173 | if (megasas_issue_init_mfi(instance)) | |
6174 | goto fail_init_mfi; | |
9c915a8c | 6175 | } |
31ea7088 | 6176 | |
9c915a8c | 6177 | tasklet_init(&instance->isr_tasklet, instance->instancet->tasklet, |
6178 | (unsigned long)instance); | |
31ea7088 | 6179 | |
d3557fc8 SS |
6180 | if (instance->msix_vectors ? |
6181 | megasas_setup_irqs_msix(instance, 0) : | |
6182 | megasas_setup_irqs_ioapic(instance)) | |
6183 | goto fail_init_mfi; | |
31ea7088 | 6184 | |
229fe47c | 6185 | /* Re-launch SR-IOV heartbeat timer */ |
6186 | if (instance->requestorId) { | |
6187 | if (!megasas_sriov_start_heartbeat(instance, 0)) | |
6188 | megasas_start_timer(instance, | |
6189 | &instance->sriov_heartbeat_timer, | |
6190 | megasas_sriov_heartbeat_handler, | |
6191 | MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF); | |
5765c5b8 | 6192 | else { |
229fe47c | 6193 | instance->skip_heartbeat_timer_del = 1; |
5765c5b8 SS |
6194 | goto fail_init_mfi; |
6195 | } | |
229fe47c | 6196 | } |
6197 | ||
d46a3ad6 | 6198 | instance->instancet->enable_intr(instance); |
3761cb4c | 6199 | megasas_setup_jbod_map(instance); |
0c79e681 YB |
6200 | instance->unload = 0; |
6201 | ||
541f90b7 | 6202 | /* |
6203 | * Initiate AEN (Asynchronous Event Notification) | |
6204 | */ | |
6205 | if (megasas_start_aen(instance)) | |
1be18254 | 6206 | dev_err(&instance->pdev->dev, "Start AEN failed\n"); |
541f90b7 | 6207 | |
31ea7088 | 6208 | return 0; |
6209 | ||
31ea7088 | 6210 | fail_init_mfi: |
6211 | if (instance->evt_detail) | |
6212 | pci_free_consistent(pdev, sizeof(struct megasas_evt_detail), | |
6213 | instance->evt_detail, | |
6214 | instance->evt_detail_h); | |
6215 | ||
2216c305 SS |
6216 | if (instance->pd_info) |
6217 | pci_free_consistent(pdev, sizeof(struct MR_PD_INFO), | |
6218 | instance->pd_info, | |
6219 | instance->pd_info_h); | |
31ea7088 | 6220 | if (instance->producer) |
6221 | pci_free_consistent(pdev, sizeof(u32), instance->producer, | |
6222 | instance->producer_h); | |
6223 | if (instance->consumer) | |
6224 | pci_free_consistent(pdev, sizeof(u32), instance->consumer, | |
6225 | instance->consumer_h); | |
6226 | scsi_host_put(host); | |
6227 | ||
6228 | fail_set_dma_mask: | |
6229 | fail_ready_state: | |
dd088128 | 6230 | fail_reenable_msix: |
31ea7088 | 6231 | |
6232 | pci_disable_device(pdev); | |
6233 | ||
6234 | return -ENODEV; | |
6235 | } | |
33139b21 JS |
6236 | #else |
6237 | #define megasas_suspend NULL | |
6238 | #define megasas_resume NULL | |
6239 | #endif | |
31ea7088 | 6240 | |
a1dfd62c KD |
6241 | static inline int |
6242 | megasas_wait_for_adapter_operational(struct megasas_instance *instance) | |
6243 | { | |
6244 | int wait_time = MEGASAS_RESET_WAIT_TIME * 2; | |
6245 | int i; | |
6246 | ||
6247 | if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) | |
6248 | return 1; | |
6249 | ||
6250 | for (i = 0; i < wait_time; i++) { | |
6251 | if (atomic_read(&instance->adprecovery) == MEGASAS_HBA_OPERATIONAL) | |
6252 | break; | |
6253 | ||
6254 | if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) | |
6255 | dev_notice(&instance->pdev->dev, "waiting for controller reset to finish\n"); | |
6256 | ||
6257 | msleep(1000); | |
6258 | } | |
6259 | ||
6260 | if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) { | |
6261 | dev_info(&instance->pdev->dev, "%s timed out while waiting for HBA to recover.\n", | |
6262 | __func__); | |
6263 | return 1; | |
6264 | } | |
6265 | ||
6266 | return 0; | |
6267 | } | |
6268 | ||
c4a3e0a5 BS |
6269 | /** |
6270 | * megasas_detach_one - PCI hot"un"plug entry point | |
6271 | * @pdev: PCI device structure | |
6272 | */ | |
6f039790 | 6273 | static void megasas_detach_one(struct pci_dev *pdev) |
c4a3e0a5 BS |
6274 | { |
6275 | int i; | |
6276 | struct Scsi_Host *host; | |
6277 | struct megasas_instance *instance; | |
9c915a8c | 6278 | struct fusion_context *fusion; |
3761cb4c | 6279 | u32 pd_seq_map_sz; |
c4a3e0a5 BS |
6280 | |
6281 | instance = pci_get_drvdata(pdev); | |
c3518837 | 6282 | instance->unload = 1; |
c4a3e0a5 | 6283 | host = instance->host; |
9c915a8c | 6284 | fusion = instance->ctrl_context; |
c4a3e0a5 | 6285 | |
229fe47c | 6286 | /* Shutdown SR-IOV heartbeat timer */ |
6287 | if (instance->requestorId && !instance->skip_heartbeat_timer_del) | |
6288 | del_timer_sync(&instance->sriov_heartbeat_timer); | |
6289 | ||
fc62b3fc SS |
6290 | if (instance->fw_crash_state != UNAVAILABLE) |
6291 | megasas_free_host_crash_buffer(instance); | |
c4a3e0a5 | 6292 | scsi_remove_host(instance->host); |
a1dfd62c KD |
6293 | |
6294 | if (megasas_wait_for_adapter_operational(instance)) | |
6295 | goto skip_firing_dcmds; | |
6296 | ||
c4a3e0a5 | 6297 | megasas_flush_cache(instance); |
31ea7088 | 6298 | megasas_shutdown_controller(instance, MR_DCMD_CTRL_SHUTDOWN); |
7e8a75f4 | 6299 | |
a1dfd62c | 6300 | skip_firing_dcmds: |
7e8a75f4 YB |
6301 | /* cancel the delayed work if this work still in queue*/ |
6302 | if (instance->ev != NULL) { | |
6303 | struct megasas_aen_event *ev = instance->ev; | |
c1d390d8 | 6304 | cancel_delayed_work_sync(&ev->hotplug_work); |
7e8a75f4 YB |
6305 | instance->ev = NULL; |
6306 | } | |
6307 | ||
cfbe7554 SS |
6308 | /* cancel all wait events */ |
6309 | wake_up_all(&instance->int_cmd_wait_q); | |
6310 | ||
5d018ad0 | 6311 | tasklet_kill(&instance->isr_tasklet); |
c4a3e0a5 BS |
6312 | |
6313 | /* | |
6314 | * Take the instance off the instance array. Note that we will not | |
6315 | * decrement the max_index. We let this array be sparse array | |
6316 | */ | |
6317 | for (i = 0; i < megasas_mgmt_info.max_index; i++) { | |
6318 | if (megasas_mgmt_info.instance[i] == instance) { | |
6319 | megasas_mgmt_info.count--; | |
6320 | megasas_mgmt_info.instance[i] = NULL; | |
6321 | ||
6322 | break; | |
6323 | } | |
6324 | } | |
6325 | ||
d46a3ad6 | 6326 | instance->instancet->disable_intr(instance); |
c4a3e0a5 | 6327 | |
d3557fc8 SS |
6328 | megasas_destroy_irqs(instance); |
6329 | ||
c8e858fe | 6330 | if (instance->msix_vectors) |
fad119b7 | 6331 | pci_free_irq_vectors(instance->pdev); |
c4a3e0a5 | 6332 | |
5a8cb85b | 6333 | if (instance->ctrl_context) { |
9c915a8c | 6334 | megasas_release_fusion(instance); |
3761cb4c | 6335 | pd_seq_map_sz = sizeof(struct MR_PD_CFG_SEQ_NUM_SYNC) + |
6336 | (sizeof(struct MR_PD_CFG_SEQ) * | |
6337 | (MAX_PHYSICAL_DEVICES - 1)); | |
51087a86 | 6338 | for (i = 0; i < 2 ; i++) { |
9c915a8c | 6339 | if (fusion->ld_map[i]) |
6340 | dma_free_coherent(&instance->pdev->dev, | |
51087a86 | 6341 | fusion->max_map_sz, |
9c915a8c | 6342 | fusion->ld_map[i], |
51087a86 SS |
6343 | fusion->ld_map_phys[i]); |
6344 | if (fusion->ld_drv_map[i]) | |
6345 | free_pages((ulong)fusion->ld_drv_map[i], | |
6346 | fusion->drv_map_pages); | |
546e559c ML |
6347 | if (fusion->pd_seq_sync[i]) |
6348 | dma_free_coherent(&instance->pdev->dev, | |
6349 | pd_seq_map_sz, | |
6350 | fusion->pd_seq_sync[i], | |
6351 | fusion->pd_seq_phys[i]); | |
51087a86 SS |
6352 | } |
6353 | free_pages((ulong)instance->ctrl_context, | |
6354 | instance->ctrl_context_pages); | |
5a8cb85b | 6355 | } else { |
9c915a8c | 6356 | megasas_release_mfi(instance); |
9c915a8c | 6357 | pci_free_consistent(pdev, sizeof(u32), |
6358 | instance->producer, | |
6359 | instance->producer_h); | |
6360 | pci_free_consistent(pdev, sizeof(u32), | |
6361 | instance->consumer, | |
6362 | instance->consumer_h); | |
9c915a8c | 6363 | } |
c4a3e0a5 | 6364 | |
51087a86 SS |
6365 | kfree(instance->ctrl_info); |
6366 | ||
105900d5 SS |
6367 | if (instance->evt_detail) |
6368 | pci_free_consistent(pdev, sizeof(struct megasas_evt_detail), | |
6369 | instance->evt_detail, instance->evt_detail_h); | |
229fe47c | 6370 | |
2216c305 SS |
6371 | if (instance->pd_info) |
6372 | pci_free_consistent(pdev, sizeof(struct MR_PD_INFO), | |
6373 | instance->pd_info, | |
6374 | instance->pd_info_h); | |
229fe47c | 6375 | if (instance->vf_affiliation) |
6376 | pci_free_consistent(pdev, (MAX_LOGICAL_DRIVES + 1) * | |
6377 | sizeof(struct MR_LD_VF_AFFILIATION), | |
6378 | instance->vf_affiliation, | |
6379 | instance->vf_affiliation_h); | |
6380 | ||
6381 | if (instance->vf_affiliation_111) | |
6382 | pci_free_consistent(pdev, | |
6383 | sizeof(struct MR_LD_VF_AFFILIATION_111), | |
6384 | instance->vf_affiliation_111, | |
6385 | instance->vf_affiliation_111_h); | |
6386 | ||
6387 | if (instance->hb_host_mem) | |
6388 | pci_free_consistent(pdev, sizeof(struct MR_CTRL_HB_HOST_MEM), | |
6389 | instance->hb_host_mem, | |
6390 | instance->hb_host_mem_h); | |
6391 | ||
fc62b3fc SS |
6392 | if (instance->crash_dump_buf) |
6393 | pci_free_consistent(pdev, CRASH_DMA_BUF_SIZE, | |
6394 | instance->crash_dump_buf, instance->crash_dump_h); | |
6395 | ||
5765c5b8 SS |
6396 | if (instance->system_info_buf) |
6397 | pci_free_consistent(pdev, sizeof(struct MR_DRV_SYSTEM_INFO), | |
6398 | instance->system_info_buf, instance->system_info_h); | |
6399 | ||
c4a3e0a5 BS |
6400 | scsi_host_put(host); |
6401 | ||
c4a3e0a5 | 6402 | pci_disable_device(pdev); |
c4a3e0a5 BS |
6403 | } |
6404 | ||
6405 | /** | |
6406 | * megasas_shutdown - Shutdown entry point | |
6407 | * @device: Generic device structure | |
6408 | */ | |
6409 | static void megasas_shutdown(struct pci_dev *pdev) | |
6410 | { | |
6411 | struct megasas_instance *instance = pci_get_drvdata(pdev); | |
c8e858fe | 6412 | |
0c79e681 | 6413 | instance->unload = 1; |
a1dfd62c KD |
6414 | |
6415 | if (megasas_wait_for_adapter_operational(instance)) | |
6416 | goto skip_firing_dcmds; | |
6417 | ||
c4a3e0a5 | 6418 | megasas_flush_cache(instance); |
530e6fc1 | 6419 | megasas_shutdown_controller(instance, MR_DCMD_CTRL_SHUTDOWN); |
a1dfd62c KD |
6420 | |
6421 | skip_firing_dcmds: | |
d46a3ad6 | 6422 | instance->instancet->disable_intr(instance); |
d3557fc8 SS |
6423 | megasas_destroy_irqs(instance); |
6424 | ||
c8e858fe | 6425 | if (instance->msix_vectors) |
fad119b7 | 6426 | pci_free_irq_vectors(instance->pdev); |
c4a3e0a5 BS |
6427 | } |
6428 | ||
6429 | /** | |
6430 | * megasas_mgmt_open - char node "open" entry point | |
6431 | */ | |
6432 | static int megasas_mgmt_open(struct inode *inode, struct file *filep) | |
6433 | { | |
6434 | /* | |
6435 | * Allow only those users with admin rights | |
6436 | */ | |
6437 | if (!capable(CAP_SYS_ADMIN)) | |
6438 | return -EACCES; | |
6439 | ||
6440 | return 0; | |
6441 | } | |
6442 | ||
c4a3e0a5 BS |
6443 | /** |
6444 | * megasas_mgmt_fasync - Async notifier registration from applications | |
6445 | * | |
6446 | * This function adds the calling process to a driver global queue. When an | |
6447 | * event occurs, SIGIO will be sent to all processes in this queue. | |
6448 | */ | |
6449 | static int megasas_mgmt_fasync(int fd, struct file *filep, int mode) | |
6450 | { | |
6451 | int rc; | |
6452 | ||
0b950672 | 6453 | mutex_lock(&megasas_async_queue_mutex); |
c4a3e0a5 BS |
6454 | |
6455 | rc = fasync_helper(fd, filep, mode, &megasas_async_queue); | |
6456 | ||
0b950672 | 6457 | mutex_unlock(&megasas_async_queue_mutex); |
c4a3e0a5 BS |
6458 | |
6459 | if (rc >= 0) { | |
6460 | /* For sanity check when we get ioctl */ | |
6461 | filep->private_data = filep; | |
6462 | return 0; | |
6463 | } | |
6464 | ||
6465 | printk(KERN_DEBUG "megasas: fasync_helper failed [%d]\n", rc); | |
6466 | ||
6467 | return rc; | |
6468 | } | |
6469 | ||
c3518837 YB |
6470 | /** |
6471 | * megasas_mgmt_poll - char node "poll" entry point | |
6472 | * */ | |
6473 | static unsigned int megasas_mgmt_poll(struct file *file, poll_table *wait) | |
6474 | { | |
6475 | unsigned int mask; | |
6476 | unsigned long flags; | |
da0dc9fb | 6477 | |
c3518837 YB |
6478 | poll_wait(file, &megasas_poll_wait, wait); |
6479 | spin_lock_irqsave(&poll_aen_lock, flags); | |
6480 | if (megasas_poll_wait_aen) | |
da0dc9fb | 6481 | mask = (POLLIN | POLLRDNORM); |
c3518837 YB |
6482 | else |
6483 | mask = 0; | |
51087a86 | 6484 | megasas_poll_wait_aen = 0; |
c3518837 YB |
6485 | spin_unlock_irqrestore(&poll_aen_lock, flags); |
6486 | return mask; | |
6487 | } | |
6488 | ||
fc62b3fc SS |
6489 | /* |
6490 | * megasas_set_crash_dump_params_ioctl: | |
6491 | * Send CRASH_DUMP_MODE DCMD to all controllers | |
6492 | * @cmd: MFI command frame | |
6493 | */ | |
6494 | ||
da0dc9fb | 6495 | static int megasas_set_crash_dump_params_ioctl(struct megasas_cmd *cmd) |
fc62b3fc SS |
6496 | { |
6497 | struct megasas_instance *local_instance; | |
6498 | int i, error = 0; | |
6499 | int crash_support; | |
6500 | ||
6501 | crash_support = cmd->frame->dcmd.mbox.w[0]; | |
6502 | ||
6503 | for (i = 0; i < megasas_mgmt_info.max_index; i++) { | |
6504 | local_instance = megasas_mgmt_info.instance[i]; | |
6505 | if (local_instance && local_instance->crash_dump_drv_support) { | |
8a01a41d | 6506 | if ((atomic_read(&local_instance->adprecovery) == |
fc62b3fc SS |
6507 | MEGASAS_HBA_OPERATIONAL) && |
6508 | !megasas_set_crash_dump_params(local_instance, | |
6509 | crash_support)) { | |
6510 | local_instance->crash_dump_app_support = | |
6511 | crash_support; | |
6512 | dev_info(&local_instance->pdev->dev, | |
6513 | "Application firmware crash " | |
6514 | "dump mode set success\n"); | |
6515 | error = 0; | |
6516 | } else { | |
6517 | dev_info(&local_instance->pdev->dev, | |
6518 | "Application firmware crash " | |
6519 | "dump mode set failed\n"); | |
6520 | error = -1; | |
6521 | } | |
6522 | } | |
6523 | } | |
6524 | return error; | |
6525 | } | |
6526 | ||
c4a3e0a5 BS |
6527 | /** |
6528 | * megasas_mgmt_fw_ioctl - Issues management ioctls to FW | |
6529 | * @instance: Adapter soft state | |
6530 | * @argp: User's ioctl packet | |
6531 | */ | |
6532 | static int | |
6533 | megasas_mgmt_fw_ioctl(struct megasas_instance *instance, | |
6534 | struct megasas_iocpacket __user * user_ioc, | |
6535 | struct megasas_iocpacket *ioc) | |
6536 | { | |
6537 | struct megasas_sge32 *kern_sge32; | |
6538 | struct megasas_cmd *cmd; | |
6539 | void *kbuff_arr[MAX_IOCTL_SGE]; | |
6540 | dma_addr_t buf_handle = 0; | |
6541 | int error = 0, i; | |
6542 | void *sense = NULL; | |
6543 | dma_addr_t sense_handle; | |
7b2519af | 6544 | unsigned long *sense_ptr; |
c4a3e0a5 BS |
6545 | |
6546 | memset(kbuff_arr, 0, sizeof(kbuff_arr)); | |
6547 | ||
6548 | if (ioc->sge_count > MAX_IOCTL_SGE) { | |
1be18254 | 6549 | dev_printk(KERN_DEBUG, &instance->pdev->dev, "SGE count [%d] > max limit [%d]\n", |
c4a3e0a5 BS |
6550 | ioc->sge_count, MAX_IOCTL_SGE); |
6551 | return -EINVAL; | |
6552 | } | |
6553 | ||
6554 | cmd = megasas_get_cmd(instance); | |
6555 | if (!cmd) { | |
1be18254 | 6556 | dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to get a cmd packet\n"); |
c4a3e0a5 BS |
6557 | return -ENOMEM; |
6558 | } | |
6559 | ||
6560 | /* | |
6561 | * User's IOCTL packet has 2 frames (maximum). Copy those two | |
6562 | * frames into our cmd's frames. cmd->frame's context will get | |
6563 | * overwritten when we copy from user's frames. So set that value | |
6564 | * alone separately | |
6565 | */ | |
6566 | memcpy(cmd->frame, ioc->frame.raw, 2 * MEGAMFI_FRAME_SIZE); | |
94cd65dd | 6567 | cmd->frame->hdr.context = cpu_to_le32(cmd->index); |
c3518837 | 6568 | cmd->frame->hdr.pad_0 = 0; |
94cd65dd SS |
6569 | cmd->frame->hdr.flags &= cpu_to_le16(~(MFI_FRAME_IEEE | |
6570 | MFI_FRAME_SGL64 | | |
6571 | MFI_FRAME_SENSE64)); | |
c4a3e0a5 | 6572 | |
fc62b3fc SS |
6573 | if (cmd->frame->dcmd.opcode == MR_DRIVER_SET_APP_CRASHDUMP_MODE) { |
6574 | error = megasas_set_crash_dump_params_ioctl(cmd); | |
6575 | megasas_return_cmd(instance, cmd); | |
6576 | return error; | |
6577 | } | |
6578 | ||
c4a3e0a5 BS |
6579 | /* |
6580 | * The management interface between applications and the fw uses | |
6581 | * MFI frames. E.g, RAID configuration changes, LD property changes | |
6582 | * etc are accomplishes through different kinds of MFI frames. The | |
6583 | * driver needs to care only about substituting user buffers with | |
6584 | * kernel buffers in SGLs. The location of SGL is embedded in the | |
6585 | * struct iocpacket itself. | |
6586 | */ | |
6587 | kern_sge32 = (struct megasas_sge32 *) | |
6588 | ((unsigned long)cmd->frame + ioc->sgl_off); | |
6589 | ||
6590 | /* | |
6591 | * For each user buffer, create a mirror buffer and copy in | |
6592 | */ | |
6593 | for (i = 0; i < ioc->sge_count; i++) { | |
98cb7e44 BM |
6594 | if (!ioc->sgl[i].iov_len) |
6595 | continue; | |
6596 | ||
9f35fa8a | 6597 | kbuff_arr[i] = dma_alloc_coherent(&instance->pdev->dev, |
c4a3e0a5 | 6598 | ioc->sgl[i].iov_len, |
9f35fa8a | 6599 | &buf_handle, GFP_KERNEL); |
c4a3e0a5 | 6600 | if (!kbuff_arr[i]) { |
1be18254 BH |
6601 | dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to alloc " |
6602 | "kernel SGL buffer for IOCTL\n"); | |
c4a3e0a5 BS |
6603 | error = -ENOMEM; |
6604 | goto out; | |
6605 | } | |
6606 | ||
6607 | /* | |
6608 | * We don't change the dma_coherent_mask, so | |
6609 | * pci_alloc_consistent only returns 32bit addresses | |
6610 | */ | |
94cd65dd SS |
6611 | kern_sge32[i].phys_addr = cpu_to_le32(buf_handle); |
6612 | kern_sge32[i].length = cpu_to_le32(ioc->sgl[i].iov_len); | |
c4a3e0a5 BS |
6613 | |
6614 | /* | |
6615 | * We created a kernel buffer corresponding to the | |
6616 | * user buffer. Now copy in from the user buffer | |
6617 | */ | |
6618 | if (copy_from_user(kbuff_arr[i], ioc->sgl[i].iov_base, | |
6619 | (u32) (ioc->sgl[i].iov_len))) { | |
6620 | error = -EFAULT; | |
6621 | goto out; | |
6622 | } | |
6623 | } | |
6624 | ||
6625 | if (ioc->sense_len) { | |
9f35fa8a SP |
6626 | sense = dma_alloc_coherent(&instance->pdev->dev, ioc->sense_len, |
6627 | &sense_handle, GFP_KERNEL); | |
c4a3e0a5 BS |
6628 | if (!sense) { |
6629 | error = -ENOMEM; | |
6630 | goto out; | |
6631 | } | |
6632 | ||
6633 | sense_ptr = | |
7b2519af | 6634 | (unsigned long *) ((unsigned long)cmd->frame + ioc->sense_off); |
94cd65dd | 6635 | *sense_ptr = cpu_to_le32(sense_handle); |
c4a3e0a5 BS |
6636 | } |
6637 | ||
6638 | /* | |
6639 | * Set the sync_cmd flag so that the ISR knows not to complete this | |
6640 | * cmd to the SCSI mid-layer | |
6641 | */ | |
6642 | cmd->sync_cmd = 1; | |
6d40afbc SS |
6643 | if (megasas_issue_blocked_cmd(instance, cmd, 0) == DCMD_NOT_FIRED) { |
6644 | cmd->sync_cmd = 0; | |
6645 | dev_err(&instance->pdev->dev, | |
6646 | "return -EBUSY from %s %d opcode 0x%x cmd->cmd_status_drv 0x%x\n", | |
6647 | __func__, __LINE__, cmd->frame->dcmd.opcode, | |
6648 | cmd->cmd_status_drv); | |
6649 | return -EBUSY; | |
6650 | } | |
6651 | ||
c4a3e0a5 BS |
6652 | cmd->sync_cmd = 0; |
6653 | ||
aa00832b SS |
6654 | if (instance->unload == 1) { |
6655 | dev_info(&instance->pdev->dev, "Driver unload is in progress " | |
6656 | "don't submit data to application\n"); | |
6657 | goto out; | |
6658 | } | |
c4a3e0a5 BS |
6659 | /* |
6660 | * copy out the kernel buffers to user buffers | |
6661 | */ | |
6662 | for (i = 0; i < ioc->sge_count; i++) { | |
6663 | if (copy_to_user(ioc->sgl[i].iov_base, kbuff_arr[i], | |
6664 | ioc->sgl[i].iov_len)) { | |
6665 | error = -EFAULT; | |
6666 | goto out; | |
6667 | } | |
6668 | } | |
6669 | ||
6670 | /* | |
6671 | * copy out the sense | |
6672 | */ | |
6673 | if (ioc->sense_len) { | |
6674 | /* | |
b70a41e0 | 6675 | * sense_ptr points to the location that has the user |
c4a3e0a5 BS |
6676 | * sense buffer address |
6677 | */ | |
7b2519af YB |
6678 | sense_ptr = (unsigned long *) ((unsigned long)ioc->frame.raw + |
6679 | ioc->sense_off); | |
c4a3e0a5 | 6680 | |
b70a41e0 | 6681 | if (copy_to_user((void __user *)((unsigned long)(*sense_ptr)), |
6682 | sense, ioc->sense_len)) { | |
1be18254 | 6683 | dev_err(&instance->pdev->dev, "Failed to copy out to user " |
b10c36a5 | 6684 | "sense data\n"); |
c4a3e0a5 BS |
6685 | error = -EFAULT; |
6686 | goto out; | |
6687 | } | |
6688 | } | |
6689 | ||
6690 | /* | |
6691 | * copy the status codes returned by the fw | |
6692 | */ | |
6693 | if (copy_to_user(&user_ioc->frame.hdr.cmd_status, | |
6694 | &cmd->frame->hdr.cmd_status, sizeof(u8))) { | |
1be18254 | 6695 | dev_printk(KERN_DEBUG, &instance->pdev->dev, "Error copying out cmd_status\n"); |
c4a3e0a5 BS |
6696 | error = -EFAULT; |
6697 | } | |
6698 | ||
da0dc9fb | 6699 | out: |
c4a3e0a5 | 6700 | if (sense) { |
9f35fa8a | 6701 | dma_free_coherent(&instance->pdev->dev, ioc->sense_len, |
c4a3e0a5 BS |
6702 | sense, sense_handle); |
6703 | } | |
6704 | ||
7a6a731b | 6705 | for (i = 0; i < ioc->sge_count; i++) { |
3deb9438 | 6706 | if (kbuff_arr[i]) { |
7a6a731b | 6707 | dma_free_coherent(&instance->pdev->dev, |
94cd65dd | 6708 | le32_to_cpu(kern_sge32[i].length), |
7a6a731b | 6709 | kbuff_arr[i], |
94cd65dd | 6710 | le32_to_cpu(kern_sge32[i].phys_addr)); |
90dc9d98 | 6711 | kbuff_arr[i] = NULL; |
3deb9438 | 6712 | } |
c4a3e0a5 BS |
6713 | } |
6714 | ||
4026e9aa | 6715 | megasas_return_cmd(instance, cmd); |
c4a3e0a5 BS |
6716 | return error; |
6717 | } | |
6718 | ||
c4a3e0a5 BS |
6719 | static int megasas_mgmt_ioctl_fw(struct file *file, unsigned long arg) |
6720 | { | |
6721 | struct megasas_iocpacket __user *user_ioc = | |
6722 | (struct megasas_iocpacket __user *)arg; | |
6723 | struct megasas_iocpacket *ioc; | |
6724 | struct megasas_instance *instance; | |
6725 | int error; | |
39a98554 | 6726 | int i; |
6727 | unsigned long flags; | |
6728 | u32 wait_time = MEGASAS_RESET_WAIT_TIME; | |
c4a3e0a5 | 6729 | |
709ab231 ME |
6730 | ioc = memdup_user(user_ioc, sizeof(*ioc)); |
6731 | if (IS_ERR(ioc)) | |
6732 | return PTR_ERR(ioc); | |
c4a3e0a5 BS |
6733 | |
6734 | instance = megasas_lookup_instance(ioc->host_no); | |
6735 | if (!instance) { | |
6736 | error = -ENODEV; | |
6737 | goto out_kfree_ioc; | |
6738 | } | |
6739 | ||
229fe47c | 6740 | /* Adjust ioctl wait time for VF mode */ |
6741 | if (instance->requestorId) | |
6742 | wait_time = MEGASAS_ROUTINE_WAIT_TIME_VF; | |
6743 | ||
6744 | /* Block ioctls in VF mode */ | |
6745 | if (instance->requestorId && !allow_vf_ioctls) { | |
6746 | error = -ENODEV; | |
6747 | goto out_kfree_ioc; | |
6748 | } | |
6749 | ||
8a01a41d | 6750 | if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { |
1be18254 | 6751 | dev_err(&instance->pdev->dev, "Controller in crit error\n"); |
0c79e681 YB |
6752 | error = -ENODEV; |
6753 | goto out_kfree_ioc; | |
6754 | } | |
6755 | ||
6756 | if (instance->unload == 1) { | |
6757 | error = -ENODEV; | |
6758 | goto out_kfree_ioc; | |
6759 | } | |
6760 | ||
c4a3e0a5 BS |
6761 | if (down_interruptible(&instance->ioctl_sem)) { |
6762 | error = -ERESTARTSYS; | |
6763 | goto out_kfree_ioc; | |
6764 | } | |
39a98554 | 6765 | |
6766 | for (i = 0; i < wait_time; i++) { | |
6767 | ||
6768 | spin_lock_irqsave(&instance->hba_lock, flags); | |
8a01a41d | 6769 | if (atomic_read(&instance->adprecovery) == MEGASAS_HBA_OPERATIONAL) { |
39a98554 | 6770 | spin_unlock_irqrestore(&instance->hba_lock, flags); |
6771 | break; | |
6772 | } | |
6773 | spin_unlock_irqrestore(&instance->hba_lock, flags); | |
6774 | ||
6775 | if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) { | |
1be18254 | 6776 | dev_notice(&instance->pdev->dev, "waiting" |
39a98554 | 6777 | "for controller reset to finish\n"); |
6778 | } | |
6779 | ||
6780 | msleep(1000); | |
6781 | } | |
6782 | ||
6783 | spin_lock_irqsave(&instance->hba_lock, flags); | |
8a01a41d | 6784 | if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) { |
39a98554 | 6785 | spin_unlock_irqrestore(&instance->hba_lock, flags); |
6786 | ||
644da3c3 | 6787 | dev_err(&instance->pdev->dev, "timed out while waiting for HBA to recover\n"); |
39a98554 | 6788 | error = -ENODEV; |
c64e483e | 6789 | goto out_up; |
39a98554 | 6790 | } |
6791 | spin_unlock_irqrestore(&instance->hba_lock, flags); | |
6792 | ||
c4a3e0a5 | 6793 | error = megasas_mgmt_fw_ioctl(instance, user_ioc, ioc); |
da0dc9fb | 6794 | out_up: |
c4a3e0a5 BS |
6795 | up(&instance->ioctl_sem); |
6796 | ||
da0dc9fb | 6797 | out_kfree_ioc: |
c4a3e0a5 BS |
6798 | kfree(ioc); |
6799 | return error; | |
6800 | } | |
6801 | ||
6802 | static int megasas_mgmt_ioctl_aen(struct file *file, unsigned long arg) | |
6803 | { | |
6804 | struct megasas_instance *instance; | |
6805 | struct megasas_aen aen; | |
6806 | int error; | |
39a98554 | 6807 | int i; |
6808 | unsigned long flags; | |
6809 | u32 wait_time = MEGASAS_RESET_WAIT_TIME; | |
c4a3e0a5 BS |
6810 | |
6811 | if (file->private_data != file) { | |
6812 | printk(KERN_DEBUG "megasas: fasync_helper was not " | |
6813 | "called first\n"); | |
6814 | return -EINVAL; | |
6815 | } | |
6816 | ||
6817 | if (copy_from_user(&aen, (void __user *)arg, sizeof(aen))) | |
6818 | return -EFAULT; | |
6819 | ||
6820 | instance = megasas_lookup_instance(aen.host_no); | |
6821 | ||
6822 | if (!instance) | |
6823 | return -ENODEV; | |
6824 | ||
8a01a41d | 6825 | if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { |
39a98554 | 6826 | return -ENODEV; |
0c79e681 YB |
6827 | } |
6828 | ||
6829 | if (instance->unload == 1) { | |
6830 | return -ENODEV; | |
6831 | } | |
6832 | ||
39a98554 | 6833 | for (i = 0; i < wait_time; i++) { |
6834 | ||
6835 | spin_lock_irqsave(&instance->hba_lock, flags); | |
8a01a41d | 6836 | if (atomic_read(&instance->adprecovery) == MEGASAS_HBA_OPERATIONAL) { |
39a98554 | 6837 | spin_unlock_irqrestore(&instance->hba_lock, |
6838 | flags); | |
6839 | break; | |
6840 | } | |
6841 | ||
6842 | spin_unlock_irqrestore(&instance->hba_lock, flags); | |
6843 | ||
6844 | if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) { | |
1be18254 | 6845 | dev_notice(&instance->pdev->dev, "waiting for" |
39a98554 | 6846 | "controller reset to finish\n"); |
6847 | } | |
6848 | ||
6849 | msleep(1000); | |
6850 | } | |
6851 | ||
6852 | spin_lock_irqsave(&instance->hba_lock, flags); | |
8a01a41d | 6853 | if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) { |
39a98554 | 6854 | spin_unlock_irqrestore(&instance->hba_lock, flags); |
644da3c3 | 6855 | dev_err(&instance->pdev->dev, "timed out while waiting for HBA to recover\n"); |
39a98554 | 6856 | return -ENODEV; |
6857 | } | |
6858 | spin_unlock_irqrestore(&instance->hba_lock, flags); | |
6859 | ||
11c71cb4 | 6860 | mutex_lock(&instance->reset_mutex); |
c4a3e0a5 BS |
6861 | error = megasas_register_aen(instance, aen.seq_num, |
6862 | aen.class_locale_word); | |
11c71cb4 | 6863 | mutex_unlock(&instance->reset_mutex); |
c4a3e0a5 BS |
6864 | return error; |
6865 | } | |
6866 | ||
6867 | /** | |
6868 | * megasas_mgmt_ioctl - char node ioctl entry point | |
6869 | */ | |
6870 | static long | |
6871 | megasas_mgmt_ioctl(struct file *file, unsigned int cmd, unsigned long arg) | |
6872 | { | |
6873 | switch (cmd) { | |
6874 | case MEGASAS_IOC_FIRMWARE: | |
6875 | return megasas_mgmt_ioctl_fw(file, arg); | |
6876 | ||
6877 | case MEGASAS_IOC_GET_AEN: | |
6878 | return megasas_mgmt_ioctl_aen(file, arg); | |
6879 | } | |
6880 | ||
6881 | return -ENOTTY; | |
6882 | } | |
6883 | ||
6884 | #ifdef CONFIG_COMPAT | |
6885 | static int megasas_mgmt_compat_ioctl_fw(struct file *file, unsigned long arg) | |
6886 | { | |
6887 | struct compat_megasas_iocpacket __user *cioc = | |
6888 | (struct compat_megasas_iocpacket __user *)arg; | |
6889 | struct megasas_iocpacket __user *ioc = | |
6890 | compat_alloc_user_space(sizeof(struct megasas_iocpacket)); | |
6891 | int i; | |
6892 | int error = 0; | |
b3dc1a21 | 6893 | compat_uptr_t ptr; |
323c4a02 | 6894 | u32 local_sense_off; |
6895 | u32 local_sense_len; | |
ea1c928b | 6896 | u32 user_sense_off; |
c4a3e0a5 | 6897 | |
83aabc1b JG |
6898 | if (clear_user(ioc, sizeof(*ioc))) |
6899 | return -EFAULT; | |
c4a3e0a5 BS |
6900 | |
6901 | if (copy_in_user(&ioc->host_no, &cioc->host_no, sizeof(u16)) || | |
6902 | copy_in_user(&ioc->sgl_off, &cioc->sgl_off, sizeof(u32)) || | |
6903 | copy_in_user(&ioc->sense_off, &cioc->sense_off, sizeof(u32)) || | |
6904 | copy_in_user(&ioc->sense_len, &cioc->sense_len, sizeof(u32)) || | |
6905 | copy_in_user(ioc->frame.raw, cioc->frame.raw, 128) || | |
6906 | copy_in_user(&ioc->sge_count, &cioc->sge_count, sizeof(u32))) | |
6907 | return -EFAULT; | |
6908 | ||
b3dc1a21 TH |
6909 | /* |
6910 | * The sense_ptr is used in megasas_mgmt_fw_ioctl only when | |
6911 | * sense_len is not null, so prepare the 64bit value under | |
6912 | * the same condition. | |
6913 | */ | |
ea1c928b SS |
6914 | if (get_user(local_sense_off, &ioc->sense_off) || |
6915 | get_user(local_sense_len, &ioc->sense_len) || | |
6916 | get_user(user_sense_off, &cioc->sense_off)) | |
323c4a02 | 6917 | return -EFAULT; |
6918 | ||
323c4a02 | 6919 | if (local_sense_len) { |
b3dc1a21 | 6920 | void __user **sense_ioc_ptr = |
ea1c928b | 6921 | (void __user **)((u8 *)((unsigned long)&ioc->frame.raw) + local_sense_off); |
b3dc1a21 | 6922 | compat_uptr_t *sense_cioc_ptr = |
ea1c928b | 6923 | (compat_uptr_t *)(((unsigned long)&cioc->frame.raw) + user_sense_off); |
b3dc1a21 TH |
6924 | if (get_user(ptr, sense_cioc_ptr) || |
6925 | put_user(compat_ptr(ptr), sense_ioc_ptr)) | |
6926 | return -EFAULT; | |
6927 | } | |
c4a3e0a5 | 6928 | |
b3dc1a21 | 6929 | for (i = 0; i < MAX_IOCTL_SGE; i++) { |
c4a3e0a5 BS |
6930 | if (get_user(ptr, &cioc->sgl[i].iov_base) || |
6931 | put_user(compat_ptr(ptr), &ioc->sgl[i].iov_base) || | |
6932 | copy_in_user(&ioc->sgl[i].iov_len, | |
6933 | &cioc->sgl[i].iov_len, sizeof(compat_size_t))) | |
6934 | return -EFAULT; | |
6935 | } | |
6936 | ||
6937 | error = megasas_mgmt_ioctl_fw(file, (unsigned long)ioc); | |
6938 | ||
6939 | if (copy_in_user(&cioc->frame.hdr.cmd_status, | |
6940 | &ioc->frame.hdr.cmd_status, sizeof(u8))) { | |
6941 | printk(KERN_DEBUG "megasas: error copy_in_user cmd_status\n"); | |
6942 | return -EFAULT; | |
6943 | } | |
6944 | return error; | |
6945 | } | |
6946 | ||
6947 | static long | |
6948 | megasas_mgmt_compat_ioctl(struct file *file, unsigned int cmd, | |
6949 | unsigned long arg) | |
6950 | { | |
6951 | switch (cmd) { | |
cb59aa6a SP |
6952 | case MEGASAS_IOC_FIRMWARE32: |
6953 | return megasas_mgmt_compat_ioctl_fw(file, arg); | |
c4a3e0a5 BS |
6954 | case MEGASAS_IOC_GET_AEN: |
6955 | return megasas_mgmt_ioctl_aen(file, arg); | |
6956 | } | |
6957 | ||
6958 | return -ENOTTY; | |
6959 | } | |
6960 | #endif | |
6961 | ||
6962 | /* | |
6963 | * File operations structure for management interface | |
6964 | */ | |
00977a59 | 6965 | static const struct file_operations megasas_mgmt_fops = { |
c4a3e0a5 BS |
6966 | .owner = THIS_MODULE, |
6967 | .open = megasas_mgmt_open, | |
c4a3e0a5 BS |
6968 | .fasync = megasas_mgmt_fasync, |
6969 | .unlocked_ioctl = megasas_mgmt_ioctl, | |
c3518837 | 6970 | .poll = megasas_mgmt_poll, |
c4a3e0a5 BS |
6971 | #ifdef CONFIG_COMPAT |
6972 | .compat_ioctl = megasas_mgmt_compat_ioctl, | |
6973 | #endif | |
6038f373 | 6974 | .llseek = noop_llseek, |
c4a3e0a5 BS |
6975 | }; |
6976 | ||
6977 | /* | |
6978 | * PCI hotplug support registration structure | |
6979 | */ | |
6980 | static struct pci_driver megasas_pci_driver = { | |
6981 | ||
6982 | .name = "megaraid_sas", | |
6983 | .id_table = megasas_pci_table, | |
6984 | .probe = megasas_probe_one, | |
6f039790 | 6985 | .remove = megasas_detach_one, |
31ea7088 | 6986 | .suspend = megasas_suspend, |
6987 | .resume = megasas_resume, | |
c4a3e0a5 BS |
6988 | .shutdown = megasas_shutdown, |
6989 | }; | |
6990 | ||
6991 | /* | |
6992 | * Sysfs driver attributes | |
6993 | */ | |
6994 | static ssize_t megasas_sysfs_show_version(struct device_driver *dd, char *buf) | |
6995 | { | |
6996 | return snprintf(buf, strlen(MEGASAS_VERSION) + 2, "%s\n", | |
6997 | MEGASAS_VERSION); | |
6998 | } | |
6999 | ||
7000 | static DRIVER_ATTR(version, S_IRUGO, megasas_sysfs_show_version, NULL); | |
7001 | ||
09fced19 SS |
7002 | static ssize_t |
7003 | megasas_sysfs_show_release_date(struct device_driver *dd, char *buf) | |
7004 | { | |
7005 | return snprintf(buf, strlen(MEGASAS_RELDATE) + 2, "%s\n", | |
7006 | MEGASAS_RELDATE); | |
7007 | } | |
7008 | ||
7009 | static DRIVER_ATTR(release_date, S_IRUGO, megasas_sysfs_show_release_date, NULL); | |
7010 | ||
72c4fd36 YB |
7011 | static ssize_t |
7012 | megasas_sysfs_show_support_poll_for_event(struct device_driver *dd, char *buf) | |
7013 | { | |
7014 | return sprintf(buf, "%u\n", support_poll_for_event); | |
7015 | } | |
7016 | ||
7017 | static DRIVER_ATTR(support_poll_for_event, S_IRUGO, | |
7018 | megasas_sysfs_show_support_poll_for_event, NULL); | |
7019 | ||
837f5fe8 YB |
7020 | static ssize_t |
7021 | megasas_sysfs_show_support_device_change(struct device_driver *dd, char *buf) | |
7022 | { | |
7023 | return sprintf(buf, "%u\n", support_device_change); | |
7024 | } | |
7025 | ||
7026 | static DRIVER_ATTR(support_device_change, S_IRUGO, | |
7027 | megasas_sysfs_show_support_device_change, NULL); | |
7028 | ||
658dcedb SP |
7029 | static ssize_t |
7030 | megasas_sysfs_show_dbg_lvl(struct device_driver *dd, char *buf) | |
7031 | { | |
ad84db2e | 7032 | return sprintf(buf, "%u\n", megasas_dbg_lvl); |
658dcedb SP |
7033 | } |
7034 | ||
7035 | static ssize_t | |
7036 | megasas_sysfs_set_dbg_lvl(struct device_driver *dd, const char *buf, size_t count) | |
7037 | { | |
7038 | int retval = count; | |
da0dc9fb BH |
7039 | |
7040 | if (sscanf(buf, "%u", &megasas_dbg_lvl) < 1) { | |
658dcedb SP |
7041 | printk(KERN_ERR "megasas: could not set dbg_lvl\n"); |
7042 | retval = -EINVAL; | |
7043 | } | |
7044 | return retval; | |
7045 | } | |
7046 | ||
66dca9b8 | 7047 | static DRIVER_ATTR(dbg_lvl, S_IRUGO|S_IWUSR, megasas_sysfs_show_dbg_lvl, |
ad84db2e | 7048 | megasas_sysfs_set_dbg_lvl); |
7049 | ||
7e8a75f4 YB |
7050 | static void |
7051 | megasas_aen_polling(struct work_struct *work) | |
7052 | { | |
7053 | struct megasas_aen_event *ev = | |
c1d390d8 | 7054 | container_of(work, struct megasas_aen_event, hotplug_work.work); |
7e8a75f4 YB |
7055 | struct megasas_instance *instance = ev->instance; |
7056 | union megasas_evt_class_locale class_locale; | |
7057 | struct Scsi_Host *host; | |
7058 | struct scsi_device *sdev1; | |
7059 | u16 pd_index = 0; | |
c9786842 | 7060 | u16 ld_index = 0; |
7e8a75f4 | 7061 | int i, j, doscan = 0; |
229fe47c | 7062 | u32 seq_num, wait_time = MEGASAS_RESET_WAIT_TIME; |
7e8a75f4 | 7063 | int error; |
6d40afbc | 7064 | u8 dcmd_ret = DCMD_SUCCESS; |
7e8a75f4 YB |
7065 | |
7066 | if (!instance) { | |
7067 | printk(KERN_ERR "invalid instance!\n"); | |
7068 | kfree(ev); | |
7069 | return; | |
7070 | } | |
229fe47c | 7071 | |
7072 | /* Adjust event workqueue thread wait time for VF mode */ | |
7073 | if (instance->requestorId) | |
7074 | wait_time = MEGASAS_ROUTINE_WAIT_TIME_VF; | |
7075 | ||
7076 | /* Don't run the event workqueue thread if OCR is running */ | |
11c71cb4 | 7077 | mutex_lock(&instance->reset_mutex); |
229fe47c | 7078 | |
7e8a75f4 YB |
7079 | instance->ev = NULL; |
7080 | host = instance->host; | |
7081 | if (instance->evt_detail) { | |
714f5177 | 7082 | megasas_decode_evt(instance); |
7e8a75f4 | 7083 | |
94cd65dd | 7084 | switch (le32_to_cpu(instance->evt_detail->code)) { |
c9786842 | 7085 | |
11c71cb4 | 7086 | case MR_EVT_PD_INSERTED: |
7e8a75f4 | 7087 | case MR_EVT_PD_REMOVED: |
11c71cb4 | 7088 | dcmd_ret = megasas_get_pd_list(instance); |
6d40afbc | 7089 | if (dcmd_ret == DCMD_SUCCESS) |
11c71cb4 | 7090 | doscan = SCAN_PD_CHANNEL; |
c9786842 YB |
7091 | break; |
7092 | ||
7093 | case MR_EVT_LD_OFFLINE: | |
4c598b23 | 7094 | case MR_EVT_CFG_CLEARED: |
c9786842 | 7095 | case MR_EVT_LD_DELETED: |
c9786842 | 7096 | case MR_EVT_LD_CREATED: |
229fe47c | 7097 | if (!instance->requestorId || |
11c71cb4 SS |
7098 | (instance->requestorId && megasas_get_ld_vf_affiliation(instance, 0))) |
7099 | dcmd_ret = megasas_ld_list_query(instance, MR_LD_QUERY_TYPE_EXPOSED_TO_HOST); | |
7100 | ||
6d40afbc | 7101 | if (dcmd_ret == DCMD_SUCCESS) |
11c71cb4 SS |
7102 | doscan = SCAN_VD_CHANNEL; |
7103 | ||
c9786842 | 7104 | break; |
11c71cb4 | 7105 | |
7e8a75f4 | 7106 | case MR_EVT_CTRL_HOST_BUS_SCAN_REQUESTED: |
c9786842 | 7107 | case MR_EVT_FOREIGN_CFG_IMPORTED: |
9c915a8c | 7108 | case MR_EVT_LD_STATE_CHANGE: |
11c71cb4 SS |
7109 | dcmd_ret = megasas_get_pd_list(instance); |
7110 | ||
6d40afbc | 7111 | if (dcmd_ret != DCMD_SUCCESS) |
11c71cb4 SS |
7112 | break; |
7113 | ||
7114 | if (!instance->requestorId || | |
7115 | (instance->requestorId && megasas_get_ld_vf_affiliation(instance, 0))) | |
7116 | dcmd_ret = megasas_ld_list_query(instance, MR_LD_QUERY_TYPE_EXPOSED_TO_HOST); | |
7117 | ||
6d40afbc | 7118 | if (dcmd_ret != DCMD_SUCCESS) |
11c71cb4 SS |
7119 | break; |
7120 | ||
7121 | doscan = SCAN_VD_CHANNEL | SCAN_PD_CHANNEL; | |
7122 | dev_info(&instance->pdev->dev, "scanning for scsi%d...\n", | |
7123 | instance->host->host_no); | |
7e8a75f4 | 7124 | break; |
11c71cb4 | 7125 | |
c4bd2654 | 7126 | case MR_EVT_CTRL_PROP_CHANGED: |
11c71cb4 SS |
7127 | dcmd_ret = megasas_get_ctrl_info(instance); |
7128 | break; | |
7e8a75f4 YB |
7129 | default: |
7130 | doscan = 0; | |
7131 | break; | |
7132 | } | |
7133 | } else { | |
1be18254 | 7134 | dev_err(&instance->pdev->dev, "invalid evt_detail!\n"); |
11c71cb4 | 7135 | mutex_unlock(&instance->reset_mutex); |
7e8a75f4 YB |
7136 | kfree(ev); |
7137 | return; | |
7138 | } | |
7139 | ||
11c71cb4 SS |
7140 | mutex_unlock(&instance->reset_mutex); |
7141 | ||
7142 | if (doscan & SCAN_PD_CHANNEL) { | |
7143 | for (i = 0; i < MEGASAS_MAX_PD_CHANNELS; i++) { | |
7144 | for (j = 0; j < MEGASAS_MAX_DEV_PER_CHANNEL; j++) { | |
7145 | pd_index = i*MEGASAS_MAX_DEV_PER_CHANNEL + j; | |
7146 | sdev1 = scsi_device_lookup(host, i, j, 0); | |
7147 | if (instance->pd_list[pd_index].driveState == | |
7148 | MR_PD_STATE_SYSTEM) { | |
7149 | if (!sdev1) | |
7150 | scsi_add_device(host, i, j, 0); | |
7151 | else | |
7152 | scsi_device_put(sdev1); | |
7153 | } else { | |
7154 | if (sdev1) { | |
7155 | scsi_remove_device(sdev1); | |
7156 | scsi_device_put(sdev1); | |
7e8a75f4 YB |
7157 | } |
7158 | } | |
7159 | } | |
7160 | } | |
11c71cb4 | 7161 | } |
c9786842 | 7162 | |
11c71cb4 SS |
7163 | if (doscan & SCAN_VD_CHANNEL) { |
7164 | for (i = 0; i < MEGASAS_MAX_LD_CHANNELS; i++) { | |
7165 | for (j = 0; j < MEGASAS_MAX_DEV_PER_CHANNEL; j++) { | |
7166 | ld_index = (i * MEGASAS_MAX_DEV_PER_CHANNEL) + j; | |
7167 | sdev1 = scsi_device_lookup(host, MEGASAS_MAX_PD_CHANNELS + i, j, 0); | |
7168 | if (instance->ld_ids[ld_index] != 0xff) { | |
7169 | if (!sdev1) | |
7170 | scsi_add_device(host, MEGASAS_MAX_PD_CHANNELS + i, j, 0); | |
7171 | else | |
7172 | scsi_device_put(sdev1); | |
7173 | } else { | |
7174 | if (sdev1) { | |
7175 | scsi_remove_device(sdev1); | |
7176 | scsi_device_put(sdev1); | |
c9786842 YB |
7177 | } |
7178 | } | |
7179 | } | |
7180 | } | |
7e8a75f4 YB |
7181 | } |
7182 | ||
6d40afbc | 7183 | if (dcmd_ret == DCMD_SUCCESS) |
11c71cb4 SS |
7184 | seq_num = le32_to_cpu(instance->evt_detail->seq_num) + 1; |
7185 | else | |
7186 | seq_num = instance->last_seq_num; | |
7e8a75f4 YB |
7187 | |
7188 | /* Register AEN with FW for latest sequence number plus 1 */ | |
7189 | class_locale.members.reserved = 0; | |
7190 | class_locale.members.locale = MR_EVT_LOCALE_ALL; | |
7191 | class_locale.members.class = MR_EVT_CLASS_DEBUG; | |
11c71cb4 SS |
7192 | |
7193 | if (instance->aen_cmd != NULL) { | |
7194 | kfree(ev); | |
7195 | return; | |
7196 | } | |
7197 | ||
7198 | mutex_lock(&instance->reset_mutex); | |
7e8a75f4 YB |
7199 | error = megasas_register_aen(instance, seq_num, |
7200 | class_locale.word); | |
7e8a75f4 | 7201 | if (error) |
11c71cb4 SS |
7202 | dev_err(&instance->pdev->dev, |
7203 | "register aen failed error %x\n", error); | |
7e8a75f4 | 7204 | |
11c71cb4 | 7205 | mutex_unlock(&instance->reset_mutex); |
7e8a75f4 YB |
7206 | kfree(ev); |
7207 | } | |
7208 | ||
c4a3e0a5 BS |
7209 | /** |
7210 | * megasas_init - Driver load entry point | |
7211 | */ | |
7212 | static int __init megasas_init(void) | |
7213 | { | |
7214 | int rval; | |
7215 | ||
c3e385a1 SS |
7216 | /* |
7217 | * Booted in kdump kernel, minimize memory footprints by | |
7218 | * disabling few features | |
7219 | */ | |
7220 | if (reset_devices) { | |
7221 | msix_vectors = 1; | |
7222 | rdpq_enable = 0; | |
7223 | dual_qdepth_disable = 1; | |
7224 | } | |
7225 | ||
c4a3e0a5 BS |
7226 | /* |
7227 | * Announce driver version and other information | |
7228 | */ | |
d98a6deb | 7229 | pr_info("megasas: %s\n", MEGASAS_VERSION); |
c4a3e0a5 | 7230 | |
bd8d6dd4 KD |
7231 | spin_lock_init(&poll_aen_lock); |
7232 | ||
72c4fd36 | 7233 | support_poll_for_event = 2; |
837f5fe8 | 7234 | support_device_change = 1; |
72c4fd36 | 7235 | |
c4a3e0a5 BS |
7236 | memset(&megasas_mgmt_info, 0, sizeof(megasas_mgmt_info)); |
7237 | ||
7238 | /* | |
7239 | * Register character device node | |
7240 | */ | |
7241 | rval = register_chrdev(0, "megaraid_sas_ioctl", &megasas_mgmt_fops); | |
7242 | ||
7243 | if (rval < 0) { | |
7244 | printk(KERN_DEBUG "megasas: failed to open device node\n"); | |
7245 | return rval; | |
7246 | } | |
7247 | ||
7248 | megasas_mgmt_majorno = rval; | |
7249 | ||
7250 | /* | |
7251 | * Register ourselves as PCI hotplug module | |
7252 | */ | |
4041b9cd | 7253 | rval = pci_register_driver(&megasas_pci_driver); |
c4a3e0a5 BS |
7254 | |
7255 | if (rval) { | |
6774def6 | 7256 | printk(KERN_DEBUG "megasas: PCI hotplug registration failed \n"); |
83aabc1b JG |
7257 | goto err_pcidrv; |
7258 | } | |
7259 | ||
7260 | rval = driver_create_file(&megasas_pci_driver.driver, | |
7261 | &driver_attr_version); | |
7262 | if (rval) | |
7263 | goto err_dcf_attr_ver; | |
72c4fd36 | 7264 | |
09fced19 SS |
7265 | rval = driver_create_file(&megasas_pci_driver.driver, |
7266 | &driver_attr_release_date); | |
7267 | if (rval) | |
7268 | goto err_dcf_rel_date; | |
7269 | ||
72c4fd36 YB |
7270 | rval = driver_create_file(&megasas_pci_driver.driver, |
7271 | &driver_attr_support_poll_for_event); | |
7272 | if (rval) | |
7273 | goto err_dcf_support_poll_for_event; | |
7274 | ||
83aabc1b JG |
7275 | rval = driver_create_file(&megasas_pci_driver.driver, |
7276 | &driver_attr_dbg_lvl); | |
7277 | if (rval) | |
7278 | goto err_dcf_dbg_lvl; | |
837f5fe8 YB |
7279 | rval = driver_create_file(&megasas_pci_driver.driver, |
7280 | &driver_attr_support_device_change); | |
7281 | if (rval) | |
7282 | goto err_dcf_support_device_change; | |
7283 | ||
c4a3e0a5 | 7284 | return rval; |
ad84db2e | 7285 | |
837f5fe8 | 7286 | err_dcf_support_device_change: |
ad84db2e | 7287 | driver_remove_file(&megasas_pci_driver.driver, |
7288 | &driver_attr_dbg_lvl); | |
83aabc1b | 7289 | err_dcf_dbg_lvl: |
72c4fd36 YB |
7290 | driver_remove_file(&megasas_pci_driver.driver, |
7291 | &driver_attr_support_poll_for_event); | |
72c4fd36 | 7292 | err_dcf_support_poll_for_event: |
09fced19 SS |
7293 | driver_remove_file(&megasas_pci_driver.driver, |
7294 | &driver_attr_release_date); | |
7295 | err_dcf_rel_date: | |
83aabc1b JG |
7296 | driver_remove_file(&megasas_pci_driver.driver, &driver_attr_version); |
7297 | err_dcf_attr_ver: | |
7298 | pci_unregister_driver(&megasas_pci_driver); | |
7299 | err_pcidrv: | |
7300 | unregister_chrdev(megasas_mgmt_majorno, "megaraid_sas_ioctl"); | |
0d49016b | 7301 | return rval; |
c4a3e0a5 BS |
7302 | } |
7303 | ||
7304 | /** | |
7305 | * megasas_exit - Driver unload entry point | |
7306 | */ | |
7307 | static void __exit megasas_exit(void) | |
7308 | { | |
658dcedb SP |
7309 | driver_remove_file(&megasas_pci_driver.driver, |
7310 | &driver_attr_dbg_lvl); | |
837f5fe8 YB |
7311 | driver_remove_file(&megasas_pci_driver.driver, |
7312 | &driver_attr_support_poll_for_event); | |
7313 | driver_remove_file(&megasas_pci_driver.driver, | |
7314 | &driver_attr_support_device_change); | |
09fced19 SS |
7315 | driver_remove_file(&megasas_pci_driver.driver, |
7316 | &driver_attr_release_date); | |
83aabc1b | 7317 | driver_remove_file(&megasas_pci_driver.driver, &driver_attr_version); |
c4a3e0a5 BS |
7318 | |
7319 | pci_unregister_driver(&megasas_pci_driver); | |
7320 | unregister_chrdev(megasas_mgmt_majorno, "megaraid_sas_ioctl"); | |
7321 | } | |
7322 | ||
7323 | module_init(megasas_init); | |
7324 | module_exit(megasas_exit); |