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c4a3e0a5 | 1 | /* |
3f1530c1 | 2 | * Linux MegaRAID driver for SAS based RAID controllers |
c4a3e0a5 | 3 | * |
3f1530c1 | 4 | * Copyright (c) 2009-2011 LSI Corporation. |
c4a3e0a5 | 5 | * |
3f1530c1 | 6 | * This program is free software; you can redistribute it and/or |
7 | * modify it under the terms of the GNU General Public License | |
8 | * as published by the Free Software Foundation; either version 2 | |
9 | * of the License, or (at your option) any later version. | |
c4a3e0a5 | 10 | * |
3f1530c1 | 11 | * This program is distributed in the hope that it will be useful, |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
c4a3e0a5 | 15 | * |
3f1530c1 | 16 | * You should have received a copy of the GNU General Public License |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
c4a3e0a5 | 19 | * |
3f1530c1 | 20 | * FILE: megaraid_sas_base.c |
00fa2b19 | 21 | * Version : v00.00.05.34-rc1 |
c4a3e0a5 | 22 | * |
3f1530c1 | 23 | * Authors: LSI Corporation |
24 | * Sreenivas Bagalkote | |
25 | * Sumant Patro | |
26 | * Bo Yang | |
00fa2b19 | 27 | * Adam Radford <linuxraid@lsi.com> |
c4a3e0a5 | 28 | * |
3f1530c1 | 29 | * Send feedback to: <megaraidlinux@lsi.com> |
30 | * | |
31 | * Mail to: LSI Corporation, 1621 Barber Lane, Milpitas, CA 95035 | |
32 | * ATTN: Linuxraid | |
c4a3e0a5 BS |
33 | */ |
34 | ||
35 | #include <linux/kernel.h> | |
36 | #include <linux/types.h> | |
37 | #include <linux/pci.h> | |
38 | #include <linux/list.h> | |
c4a3e0a5 BS |
39 | #include <linux/moduleparam.h> |
40 | #include <linux/module.h> | |
41 | #include <linux/spinlock.h> | |
42 | #include <linux/interrupt.h> | |
43 | #include <linux/delay.h> | |
44 | #include <linux/uio.h> | |
5a0e3ad6 | 45 | #include <linux/slab.h> |
c4a3e0a5 | 46 | #include <asm/uaccess.h> |
43399236 | 47 | #include <linux/fs.h> |
c4a3e0a5 | 48 | #include <linux/compat.h> |
cf62a0a5 | 49 | #include <linux/blkdev.h> |
0b950672 | 50 | #include <linux/mutex.h> |
c3518837 | 51 | #include <linux/poll.h> |
c4a3e0a5 BS |
52 | |
53 | #include <scsi/scsi.h> | |
54 | #include <scsi/scsi_cmnd.h> | |
55 | #include <scsi/scsi_device.h> | |
56 | #include <scsi/scsi_host.h> | |
9c915a8c | 57 | #include "megaraid_sas_fusion.h" |
c4a3e0a5 BS |
58 | #include "megaraid_sas.h" |
59 | ||
ad84db2e | 60 | /* |
61 | * poll_mode_io:1- schedule complete completion from q cmd | |
62 | */ | |
63 | static unsigned int poll_mode_io; | |
64 | module_param_named(poll_mode_io, poll_mode_io, int, 0); | |
65 | MODULE_PARM_DESC(poll_mode_io, | |
66 | "Complete cmds from IO path, (default=0)"); | |
67 | ||
1fd10685 YB |
68 | /* |
69 | * Number of sectors per IO command | |
70 | * Will be set in megasas_init_mfi if user does not provide | |
71 | */ | |
72 | static unsigned int max_sectors; | |
73 | module_param_named(max_sectors, max_sectors, int, 0); | |
74 | MODULE_PARM_DESC(max_sectors, | |
75 | "Maximum number of sectors per IO command"); | |
76 | ||
80d9da98 | 77 | static int msix_disable; |
78 | module_param(msix_disable, int, S_IRUGO); | |
79 | MODULE_PARM_DESC(msix_disable, "Disable MSI-X interrupt handling. Default: 0"); | |
80 | ||
c4a3e0a5 BS |
81 | MODULE_LICENSE("GPL"); |
82 | MODULE_VERSION(MEGASAS_VERSION); | |
3d6d174a | 83 | MODULE_AUTHOR("megaraidlinux@lsi.com"); |
f28cd7cf | 84 | MODULE_DESCRIPTION("LSI MegaRAID SAS Driver"); |
c4a3e0a5 | 85 | |
9c915a8c | 86 | int megasas_transition_to_ready(struct megasas_instance *instance); |
39a98554 | 87 | static int megasas_get_pd_list(struct megasas_instance *instance); |
88 | static int megasas_issue_init_mfi(struct megasas_instance *instance); | |
89 | static int megasas_register_aen(struct megasas_instance *instance, | |
90 | u32 seq_num, u32 class_locale_word); | |
c4a3e0a5 BS |
91 | /* |
92 | * PCI ID table for all supported controllers | |
93 | */ | |
94 | static struct pci_device_id megasas_pci_table[] = { | |
95 | ||
f3d7271c HK |
96 | {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1064R)}, |
97 | /* xscale IOP */ | |
98 | {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078R)}, | |
99 | /* ppc IOP */ | |
af7a5647 | 100 | {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078DE)}, |
101 | /* ppc IOP */ | |
6610a6b3 YB |
102 | {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078GEN2)}, |
103 | /* gen2*/ | |
104 | {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0079GEN2)}, | |
105 | /* gen2*/ | |
87911122 YB |
106 | {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0073SKINNY)}, |
107 | /* skinny*/ | |
108 | {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0071SKINNY)}, | |
109 | /* skinny*/ | |
f3d7271c HK |
110 | {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_VERDE_ZCR)}, |
111 | /* xscale IOP, vega */ | |
112 | {PCI_DEVICE(PCI_VENDOR_ID_DELL, PCI_DEVICE_ID_DELL_PERC5)}, | |
113 | /* xscale IOP */ | |
9c915a8c | 114 | {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FUSION)}, |
115 | /* Fusion */ | |
f3d7271c | 116 | {} |
c4a3e0a5 BS |
117 | }; |
118 | ||
119 | MODULE_DEVICE_TABLE(pci, megasas_pci_table); | |
120 | ||
121 | static int megasas_mgmt_majorno; | |
122 | static struct megasas_mgmt_info megasas_mgmt_info; | |
123 | static struct fasync_struct *megasas_async_queue; | |
0b950672 | 124 | static DEFINE_MUTEX(megasas_async_queue_mutex); |
c4a3e0a5 | 125 | |
c3518837 YB |
126 | static int megasas_poll_wait_aen; |
127 | static DECLARE_WAIT_QUEUE_HEAD(megasas_poll_wait); | |
72c4fd36 | 128 | static u32 support_poll_for_event; |
9c915a8c | 129 | u32 megasas_dbg_lvl; |
837f5fe8 | 130 | static u32 support_device_change; |
658dcedb | 131 | |
c3518837 YB |
132 | /* define lock for aen poll */ |
133 | spinlock_t poll_aen_lock; | |
134 | ||
9c915a8c | 135 | void |
7343eb65 | 136 | megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd, |
137 | u8 alt_status); | |
ebf054b0 | 138 | static u32 |
139 | megasas_read_fw_status_reg_gen2(struct megasas_register_set __iomem *regs); | |
140 | static int | |
141 | megasas_adp_reset_gen2(struct megasas_instance *instance, | |
142 | struct megasas_register_set __iomem *reg_set); | |
cd50ba8e | 143 | static irqreturn_t megasas_isr(int irq, void *devp); |
144 | static u32 | |
145 | megasas_init_adapter_mfi(struct megasas_instance *instance); | |
146 | u32 | |
147 | megasas_build_and_issue_cmd(struct megasas_instance *instance, | |
148 | struct scsi_cmnd *scmd); | |
149 | static void megasas_complete_cmd_dpc(unsigned long instance_addr); | |
9c915a8c | 150 | void |
151 | megasas_release_fusion(struct megasas_instance *instance); | |
152 | int | |
153 | megasas_ioc_init_fusion(struct megasas_instance *instance); | |
154 | void | |
155 | megasas_free_cmds_fusion(struct megasas_instance *instance); | |
156 | u8 | |
157 | megasas_get_map_info(struct megasas_instance *instance); | |
158 | int | |
159 | megasas_sync_map_info(struct megasas_instance *instance); | |
160 | int | |
161 | wait_and_poll(struct megasas_instance *instance, struct megasas_cmd *cmd); | |
162 | void megasas_reset_reply_desc(struct megasas_instance *instance); | |
163 | u8 MR_ValidateMapInfo(struct MR_FW_RAID_MAP_ALL *map, | |
164 | struct LD_LOAD_BALANCE_INFO *lbInfo); | |
165 | int megasas_reset_fusion(struct Scsi_Host *shost); | |
166 | void megasas_fusion_ocr_wq(struct work_struct *work); | |
cd50ba8e | 167 | |
168 | void | |
169 | megasas_issue_dcmd(struct megasas_instance *instance, struct megasas_cmd *cmd) | |
170 | { | |
171 | instance->instancet->fire_cmd(instance, | |
172 | cmd->frame_phys_addr, 0, instance->reg_set); | |
173 | } | |
7343eb65 | 174 | |
c4a3e0a5 BS |
175 | /** |
176 | * megasas_get_cmd - Get a command from the free pool | |
177 | * @instance: Adapter soft state | |
178 | * | |
179 | * Returns a free command from the pool | |
180 | */ | |
9c915a8c | 181 | struct megasas_cmd *megasas_get_cmd(struct megasas_instance |
c4a3e0a5 BS |
182 | *instance) |
183 | { | |
184 | unsigned long flags; | |
185 | struct megasas_cmd *cmd = NULL; | |
186 | ||
187 | spin_lock_irqsave(&instance->cmd_pool_lock, flags); | |
188 | ||
189 | if (!list_empty(&instance->cmd_pool)) { | |
190 | cmd = list_entry((&instance->cmd_pool)->next, | |
191 | struct megasas_cmd, list); | |
192 | list_del_init(&cmd->list); | |
193 | } else { | |
194 | printk(KERN_ERR "megasas: Command pool empty!\n"); | |
195 | } | |
196 | ||
197 | spin_unlock_irqrestore(&instance->cmd_pool_lock, flags); | |
198 | return cmd; | |
199 | } | |
200 | ||
201 | /** | |
202 | * megasas_return_cmd - Return a cmd to free command pool | |
203 | * @instance: Adapter soft state | |
204 | * @cmd: Command packet to be returned to free command pool | |
205 | */ | |
9c915a8c | 206 | inline void |
c4a3e0a5 BS |
207 | megasas_return_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd) |
208 | { | |
209 | unsigned long flags; | |
210 | ||
211 | spin_lock_irqsave(&instance->cmd_pool_lock, flags); | |
212 | ||
213 | cmd->scmd = NULL; | |
9c915a8c | 214 | cmd->frame_count = 0; |
c4a3e0a5 BS |
215 | list_add_tail(&cmd->list, &instance->cmd_pool); |
216 | ||
217 | spin_unlock_irqrestore(&instance->cmd_pool_lock, flags); | |
218 | } | |
219 | ||
1341c939 SP |
220 | |
221 | /** | |
0d49016b | 222 | * The following functions are defined for xscale |
1341c939 SP |
223 | * (deviceid : 1064R, PERC5) controllers |
224 | */ | |
225 | ||
c4a3e0a5 | 226 | /** |
1341c939 | 227 | * megasas_enable_intr_xscale - Enables interrupts |
c4a3e0a5 BS |
228 | * @regs: MFI register set |
229 | */ | |
230 | static inline void | |
1341c939 | 231 | megasas_enable_intr_xscale(struct megasas_register_set __iomem * regs) |
c4a3e0a5 | 232 | { |
39a98554 | 233 | writel(0, &(regs)->outbound_intr_mask); |
c4a3e0a5 BS |
234 | |
235 | /* Dummy readl to force pci flush */ | |
236 | readl(®s->outbound_intr_mask); | |
237 | } | |
238 | ||
b274cab7 SP |
239 | /** |
240 | * megasas_disable_intr_xscale -Disables interrupt | |
241 | * @regs: MFI register set | |
242 | */ | |
243 | static inline void | |
244 | megasas_disable_intr_xscale(struct megasas_register_set __iomem * regs) | |
245 | { | |
246 | u32 mask = 0x1f; | |
247 | writel(mask, ®s->outbound_intr_mask); | |
248 | /* Dummy readl to force pci flush */ | |
249 | readl(®s->outbound_intr_mask); | |
250 | } | |
251 | ||
1341c939 SP |
252 | /** |
253 | * megasas_read_fw_status_reg_xscale - returns the current FW status value | |
254 | * @regs: MFI register set | |
255 | */ | |
256 | static u32 | |
257 | megasas_read_fw_status_reg_xscale(struct megasas_register_set __iomem * regs) | |
258 | { | |
259 | return readl(&(regs)->outbound_msg_0); | |
260 | } | |
261 | /** | |
262 | * megasas_clear_interrupt_xscale - Check & clear interrupt | |
263 | * @regs: MFI register set | |
264 | */ | |
0d49016b | 265 | static int |
1341c939 SP |
266 | megasas_clear_intr_xscale(struct megasas_register_set __iomem * regs) |
267 | { | |
268 | u32 status; | |
39a98554 | 269 | u32 mfiStatus = 0; |
1341c939 SP |
270 | /* |
271 | * Check if it is our interrupt | |
272 | */ | |
273 | status = readl(®s->outbound_intr_status); | |
274 | ||
39a98554 | 275 | if (status & MFI_OB_INTR_STATUS_MASK) |
276 | mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE; | |
277 | if (status & MFI_XSCALE_OMR0_CHANGE_INTERRUPT) | |
278 | mfiStatus |= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE; | |
1341c939 SP |
279 | |
280 | /* | |
281 | * Clear the interrupt by writing back the same value | |
282 | */ | |
39a98554 | 283 | if (mfiStatus) |
284 | writel(status, ®s->outbound_intr_status); | |
1341c939 | 285 | |
06f579de YB |
286 | /* Dummy readl to force pci flush */ |
287 | readl(®s->outbound_intr_status); | |
288 | ||
39a98554 | 289 | return mfiStatus; |
1341c939 SP |
290 | } |
291 | ||
292 | /** | |
293 | * megasas_fire_cmd_xscale - Sends command to the FW | |
294 | * @frame_phys_addr : Physical address of cmd | |
295 | * @frame_count : Number of frames for the command | |
296 | * @regs : MFI register set | |
297 | */ | |
0d49016b | 298 | static inline void |
0c79e681 YB |
299 | megasas_fire_cmd_xscale(struct megasas_instance *instance, |
300 | dma_addr_t frame_phys_addr, | |
301 | u32 frame_count, | |
302 | struct megasas_register_set __iomem *regs) | |
1341c939 | 303 | { |
39a98554 | 304 | unsigned long flags; |
305 | spin_lock_irqsave(&instance->hba_lock, flags); | |
1341c939 SP |
306 | writel((frame_phys_addr >> 3)|(frame_count), |
307 | &(regs)->inbound_queue_port); | |
39a98554 | 308 | spin_unlock_irqrestore(&instance->hba_lock, flags); |
309 | } | |
310 | ||
311 | /** | |
312 | * megasas_adp_reset_xscale - For controller reset | |
313 | * @regs: MFI register set | |
314 | */ | |
315 | static int | |
316 | megasas_adp_reset_xscale(struct megasas_instance *instance, | |
317 | struct megasas_register_set __iomem *regs) | |
318 | { | |
319 | u32 i; | |
320 | u32 pcidata; | |
321 | writel(MFI_ADP_RESET, ®s->inbound_doorbell); | |
322 | ||
323 | for (i = 0; i < 3; i++) | |
324 | msleep(1000); /* sleep for 3 secs */ | |
325 | pcidata = 0; | |
326 | pci_read_config_dword(instance->pdev, MFI_1068_PCSR_OFFSET, &pcidata); | |
327 | printk(KERN_NOTICE "pcidata = %x\n", pcidata); | |
328 | if (pcidata & 0x2) { | |
329 | printk(KERN_NOTICE "mfi 1068 offset read=%x\n", pcidata); | |
330 | pcidata &= ~0x2; | |
331 | pci_write_config_dword(instance->pdev, | |
332 | MFI_1068_PCSR_OFFSET, pcidata); | |
333 | ||
334 | for (i = 0; i < 2; i++) | |
335 | msleep(1000); /* need to wait 2 secs again */ | |
336 | ||
337 | pcidata = 0; | |
338 | pci_read_config_dword(instance->pdev, | |
339 | MFI_1068_FW_HANDSHAKE_OFFSET, &pcidata); | |
340 | printk(KERN_NOTICE "1068 offset handshake read=%x\n", pcidata); | |
341 | if ((pcidata & 0xffff0000) == MFI_1068_FW_READY) { | |
342 | printk(KERN_NOTICE "1068 offset pcidt=%x\n", pcidata); | |
343 | pcidata = 0; | |
344 | pci_write_config_dword(instance->pdev, | |
345 | MFI_1068_FW_HANDSHAKE_OFFSET, pcidata); | |
346 | } | |
347 | } | |
348 | return 0; | |
349 | } | |
350 | ||
351 | /** | |
352 | * megasas_check_reset_xscale - For controller reset check | |
353 | * @regs: MFI register set | |
354 | */ | |
355 | static int | |
356 | megasas_check_reset_xscale(struct megasas_instance *instance, | |
357 | struct megasas_register_set __iomem *regs) | |
358 | { | |
359 | u32 consumer; | |
360 | consumer = *instance->consumer; | |
361 | ||
362 | if ((instance->adprecovery != MEGASAS_HBA_OPERATIONAL) && | |
363 | (*instance->consumer == MEGASAS_ADPRESET_INPROG_SIGN)) { | |
364 | return 1; | |
365 | } | |
366 | return 0; | |
1341c939 SP |
367 | } |
368 | ||
369 | static struct megasas_instance_template megasas_instance_template_xscale = { | |
370 | ||
371 | .fire_cmd = megasas_fire_cmd_xscale, | |
372 | .enable_intr = megasas_enable_intr_xscale, | |
b274cab7 | 373 | .disable_intr = megasas_disable_intr_xscale, |
1341c939 SP |
374 | .clear_intr = megasas_clear_intr_xscale, |
375 | .read_fw_status_reg = megasas_read_fw_status_reg_xscale, | |
39a98554 | 376 | .adp_reset = megasas_adp_reset_xscale, |
377 | .check_reset = megasas_check_reset_xscale, | |
cd50ba8e | 378 | .service_isr = megasas_isr, |
379 | .tasklet = megasas_complete_cmd_dpc, | |
380 | .init_adapter = megasas_init_adapter_mfi, | |
381 | .build_and_issue_cmd = megasas_build_and_issue_cmd, | |
382 | .issue_dcmd = megasas_issue_dcmd, | |
1341c939 SP |
383 | }; |
384 | ||
385 | /** | |
0d49016b | 386 | * This is the end of set of functions & definitions specific |
1341c939 SP |
387 | * to xscale (deviceid : 1064R, PERC5) controllers |
388 | */ | |
389 | ||
f9876f0b | 390 | /** |
0d49016b | 391 | * The following functions are defined for ppc (deviceid : 0x60) |
f9876f0b SP |
392 | * controllers |
393 | */ | |
394 | ||
395 | /** | |
396 | * megasas_enable_intr_ppc - Enables interrupts | |
397 | * @regs: MFI register set | |
398 | */ | |
399 | static inline void | |
400 | megasas_enable_intr_ppc(struct megasas_register_set __iomem * regs) | |
401 | { | |
402 | writel(0xFFFFFFFF, &(regs)->outbound_doorbell_clear); | |
0d49016b | 403 | |
39a98554 | 404 | writel(~0x80000000, &(regs)->outbound_intr_mask); |
f9876f0b SP |
405 | |
406 | /* Dummy readl to force pci flush */ | |
407 | readl(®s->outbound_intr_mask); | |
408 | } | |
409 | ||
b274cab7 SP |
410 | /** |
411 | * megasas_disable_intr_ppc - Disable interrupt | |
412 | * @regs: MFI register set | |
413 | */ | |
414 | static inline void | |
415 | megasas_disable_intr_ppc(struct megasas_register_set __iomem * regs) | |
416 | { | |
417 | u32 mask = 0xFFFFFFFF; | |
418 | writel(mask, ®s->outbound_intr_mask); | |
419 | /* Dummy readl to force pci flush */ | |
420 | readl(®s->outbound_intr_mask); | |
421 | } | |
422 | ||
f9876f0b SP |
423 | /** |
424 | * megasas_read_fw_status_reg_ppc - returns the current FW status value | |
425 | * @regs: MFI register set | |
426 | */ | |
427 | static u32 | |
428 | megasas_read_fw_status_reg_ppc(struct megasas_register_set __iomem * regs) | |
429 | { | |
430 | return readl(&(regs)->outbound_scratch_pad); | |
431 | } | |
432 | ||
433 | /** | |
434 | * megasas_clear_interrupt_ppc - Check & clear interrupt | |
435 | * @regs: MFI register set | |
436 | */ | |
0d49016b | 437 | static int |
f9876f0b SP |
438 | megasas_clear_intr_ppc(struct megasas_register_set __iomem * regs) |
439 | { | |
440 | u32 status; | |
441 | /* | |
442 | * Check if it is our interrupt | |
443 | */ | |
444 | status = readl(®s->outbound_intr_status); | |
445 | ||
446 | if (!(status & MFI_REPLY_1078_MESSAGE_INTERRUPT)) { | |
39a98554 | 447 | return 0; |
f9876f0b SP |
448 | } |
449 | ||
450 | /* | |
451 | * Clear the interrupt by writing back the same value | |
452 | */ | |
453 | writel(status, ®s->outbound_doorbell_clear); | |
454 | ||
06f579de YB |
455 | /* Dummy readl to force pci flush */ |
456 | readl(®s->outbound_doorbell_clear); | |
457 | ||
39a98554 | 458 | return 1; |
f9876f0b SP |
459 | } |
460 | /** | |
461 | * megasas_fire_cmd_ppc - Sends command to the FW | |
462 | * @frame_phys_addr : Physical address of cmd | |
463 | * @frame_count : Number of frames for the command | |
464 | * @regs : MFI register set | |
465 | */ | |
0d49016b | 466 | static inline void |
0c79e681 YB |
467 | megasas_fire_cmd_ppc(struct megasas_instance *instance, |
468 | dma_addr_t frame_phys_addr, | |
469 | u32 frame_count, | |
470 | struct megasas_register_set __iomem *regs) | |
f9876f0b | 471 | { |
39a98554 | 472 | unsigned long flags; |
473 | spin_lock_irqsave(&instance->hba_lock, flags); | |
0d49016b | 474 | writel((frame_phys_addr | (frame_count<<1))|1, |
f9876f0b | 475 | &(regs)->inbound_queue_port); |
39a98554 | 476 | spin_unlock_irqrestore(&instance->hba_lock, flags); |
f9876f0b SP |
477 | } |
478 | ||
39a98554 | 479 | /** |
480 | * megasas_adp_reset_ppc - For controller reset | |
481 | * @regs: MFI register set | |
482 | */ | |
483 | static int | |
484 | megasas_adp_reset_ppc(struct megasas_instance *instance, | |
485 | struct megasas_register_set __iomem *regs) | |
486 | { | |
487 | return 0; | |
488 | } | |
489 | ||
490 | /** | |
491 | * megasas_check_reset_ppc - For controller reset check | |
492 | * @regs: MFI register set | |
493 | */ | |
494 | static int | |
495 | megasas_check_reset_ppc(struct megasas_instance *instance, | |
496 | struct megasas_register_set __iomem *regs) | |
497 | { | |
498 | return 0; | |
499 | } | |
f9876f0b | 500 | static struct megasas_instance_template megasas_instance_template_ppc = { |
0d49016b | 501 | |
f9876f0b SP |
502 | .fire_cmd = megasas_fire_cmd_ppc, |
503 | .enable_intr = megasas_enable_intr_ppc, | |
b274cab7 | 504 | .disable_intr = megasas_disable_intr_ppc, |
f9876f0b SP |
505 | .clear_intr = megasas_clear_intr_ppc, |
506 | .read_fw_status_reg = megasas_read_fw_status_reg_ppc, | |
39a98554 | 507 | .adp_reset = megasas_adp_reset_ppc, |
508 | .check_reset = megasas_check_reset_ppc, | |
cd50ba8e | 509 | .service_isr = megasas_isr, |
510 | .tasklet = megasas_complete_cmd_dpc, | |
511 | .init_adapter = megasas_init_adapter_mfi, | |
512 | .build_and_issue_cmd = megasas_build_and_issue_cmd, | |
513 | .issue_dcmd = megasas_issue_dcmd, | |
f9876f0b SP |
514 | }; |
515 | ||
87911122 YB |
516 | /** |
517 | * megasas_enable_intr_skinny - Enables interrupts | |
518 | * @regs: MFI register set | |
519 | */ | |
520 | static inline void | |
521 | megasas_enable_intr_skinny(struct megasas_register_set __iomem *regs) | |
522 | { | |
523 | writel(0xFFFFFFFF, &(regs)->outbound_intr_mask); | |
524 | ||
525 | writel(~MFI_SKINNY_ENABLE_INTERRUPT_MASK, &(regs)->outbound_intr_mask); | |
526 | ||
527 | /* Dummy readl to force pci flush */ | |
528 | readl(®s->outbound_intr_mask); | |
529 | } | |
530 | ||
531 | /** | |
532 | * megasas_disable_intr_skinny - Disables interrupt | |
533 | * @regs: MFI register set | |
534 | */ | |
535 | static inline void | |
536 | megasas_disable_intr_skinny(struct megasas_register_set __iomem *regs) | |
537 | { | |
538 | u32 mask = 0xFFFFFFFF; | |
539 | writel(mask, ®s->outbound_intr_mask); | |
540 | /* Dummy readl to force pci flush */ | |
541 | readl(®s->outbound_intr_mask); | |
542 | } | |
543 | ||
544 | /** | |
545 | * megasas_read_fw_status_reg_skinny - returns the current FW status value | |
546 | * @regs: MFI register set | |
547 | */ | |
548 | static u32 | |
549 | megasas_read_fw_status_reg_skinny(struct megasas_register_set __iomem *regs) | |
550 | { | |
551 | return readl(&(regs)->outbound_scratch_pad); | |
552 | } | |
553 | ||
554 | /** | |
555 | * megasas_clear_interrupt_skinny - Check & clear interrupt | |
556 | * @regs: MFI register set | |
557 | */ | |
558 | static int | |
559 | megasas_clear_intr_skinny(struct megasas_register_set __iomem *regs) | |
560 | { | |
561 | u32 status; | |
ebf054b0 | 562 | u32 mfiStatus = 0; |
563 | ||
87911122 YB |
564 | /* |
565 | * Check if it is our interrupt | |
566 | */ | |
567 | status = readl(®s->outbound_intr_status); | |
568 | ||
569 | if (!(status & MFI_SKINNY_ENABLE_INTERRUPT_MASK)) { | |
39a98554 | 570 | return 0; |
87911122 YB |
571 | } |
572 | ||
ebf054b0 | 573 | /* |
574 | * Check if it is our interrupt | |
575 | */ | |
576 | if ((megasas_read_fw_status_reg_gen2(regs) & MFI_STATE_MASK) == | |
577 | MFI_STATE_FAULT) { | |
578 | mfiStatus = MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE; | |
579 | } else | |
580 | mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE; | |
581 | ||
87911122 YB |
582 | /* |
583 | * Clear the interrupt by writing back the same value | |
584 | */ | |
585 | writel(status, ®s->outbound_intr_status); | |
586 | ||
587 | /* | |
588 | * dummy read to flush PCI | |
589 | */ | |
590 | readl(®s->outbound_intr_status); | |
591 | ||
ebf054b0 | 592 | return mfiStatus; |
87911122 YB |
593 | } |
594 | ||
595 | /** | |
596 | * megasas_fire_cmd_skinny - Sends command to the FW | |
597 | * @frame_phys_addr : Physical address of cmd | |
598 | * @frame_count : Number of frames for the command | |
599 | * @regs : MFI register set | |
600 | */ | |
601 | static inline void | |
0c79e681 YB |
602 | megasas_fire_cmd_skinny(struct megasas_instance *instance, |
603 | dma_addr_t frame_phys_addr, | |
604 | u32 frame_count, | |
87911122 YB |
605 | struct megasas_register_set __iomem *regs) |
606 | { | |
0c79e681 | 607 | unsigned long flags; |
39a98554 | 608 | spin_lock_irqsave(&instance->hba_lock, flags); |
87911122 YB |
609 | writel(0, &(regs)->inbound_high_queue_port); |
610 | writel((frame_phys_addr | (frame_count<<1))|1, | |
611 | &(regs)->inbound_low_queue_port); | |
39a98554 | 612 | spin_unlock_irqrestore(&instance->hba_lock, flags); |
613 | } | |
614 | ||
39a98554 | 615 | /** |
616 | * megasas_check_reset_skinny - For controller reset check | |
617 | * @regs: MFI register set | |
618 | */ | |
619 | static int | |
620 | megasas_check_reset_skinny(struct megasas_instance *instance, | |
621 | struct megasas_register_set __iomem *regs) | |
622 | { | |
623 | return 0; | |
87911122 YB |
624 | } |
625 | ||
626 | static struct megasas_instance_template megasas_instance_template_skinny = { | |
627 | ||
628 | .fire_cmd = megasas_fire_cmd_skinny, | |
629 | .enable_intr = megasas_enable_intr_skinny, | |
630 | .disable_intr = megasas_disable_intr_skinny, | |
631 | .clear_intr = megasas_clear_intr_skinny, | |
632 | .read_fw_status_reg = megasas_read_fw_status_reg_skinny, | |
ebf054b0 | 633 | .adp_reset = megasas_adp_reset_gen2, |
39a98554 | 634 | .check_reset = megasas_check_reset_skinny, |
cd50ba8e | 635 | .service_isr = megasas_isr, |
636 | .tasklet = megasas_complete_cmd_dpc, | |
637 | .init_adapter = megasas_init_adapter_mfi, | |
638 | .build_and_issue_cmd = megasas_build_and_issue_cmd, | |
639 | .issue_dcmd = megasas_issue_dcmd, | |
87911122 YB |
640 | }; |
641 | ||
642 | ||
6610a6b3 YB |
643 | /** |
644 | * The following functions are defined for gen2 (deviceid : 0x78 0x79) | |
645 | * controllers | |
646 | */ | |
647 | ||
648 | /** | |
649 | * megasas_enable_intr_gen2 - Enables interrupts | |
650 | * @regs: MFI register set | |
651 | */ | |
652 | static inline void | |
653 | megasas_enable_intr_gen2(struct megasas_register_set __iomem *regs) | |
654 | { | |
655 | writel(0xFFFFFFFF, &(regs)->outbound_doorbell_clear); | |
656 | ||
657 | /* write ~0x00000005 (4 & 1) to the intr mask*/ | |
658 | writel(~MFI_GEN2_ENABLE_INTERRUPT_MASK, &(regs)->outbound_intr_mask); | |
659 | ||
660 | /* Dummy readl to force pci flush */ | |
661 | readl(®s->outbound_intr_mask); | |
662 | } | |
663 | ||
664 | /** | |
665 | * megasas_disable_intr_gen2 - Disables interrupt | |
666 | * @regs: MFI register set | |
667 | */ | |
668 | static inline void | |
669 | megasas_disable_intr_gen2(struct megasas_register_set __iomem *regs) | |
670 | { | |
671 | u32 mask = 0xFFFFFFFF; | |
672 | writel(mask, ®s->outbound_intr_mask); | |
673 | /* Dummy readl to force pci flush */ | |
674 | readl(®s->outbound_intr_mask); | |
675 | } | |
676 | ||
677 | /** | |
678 | * megasas_read_fw_status_reg_gen2 - returns the current FW status value | |
679 | * @regs: MFI register set | |
680 | */ | |
681 | static u32 | |
682 | megasas_read_fw_status_reg_gen2(struct megasas_register_set __iomem *regs) | |
683 | { | |
684 | return readl(&(regs)->outbound_scratch_pad); | |
685 | } | |
686 | ||
687 | /** | |
688 | * megasas_clear_interrupt_gen2 - Check & clear interrupt | |
689 | * @regs: MFI register set | |
690 | */ | |
691 | static int | |
692 | megasas_clear_intr_gen2(struct megasas_register_set __iomem *regs) | |
693 | { | |
694 | u32 status; | |
39a98554 | 695 | u32 mfiStatus = 0; |
6610a6b3 YB |
696 | /* |
697 | * Check if it is our interrupt | |
698 | */ | |
699 | status = readl(®s->outbound_intr_status); | |
700 | ||
39a98554 | 701 | if (status & MFI_GEN2_ENABLE_INTERRUPT_MASK) { |
702 | mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE; | |
703 | } | |
704 | if (status & MFI_G2_OUTBOUND_DOORBELL_CHANGE_INTERRUPT) { | |
705 | mfiStatus |= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE; | |
706 | } | |
6610a6b3 YB |
707 | |
708 | /* | |
709 | * Clear the interrupt by writing back the same value | |
710 | */ | |
39a98554 | 711 | if (mfiStatus) |
712 | writel(status, ®s->outbound_doorbell_clear); | |
6610a6b3 YB |
713 | |
714 | /* Dummy readl to force pci flush */ | |
715 | readl(®s->outbound_intr_status); | |
716 | ||
39a98554 | 717 | return mfiStatus; |
6610a6b3 YB |
718 | } |
719 | /** | |
720 | * megasas_fire_cmd_gen2 - Sends command to the FW | |
721 | * @frame_phys_addr : Physical address of cmd | |
722 | * @frame_count : Number of frames for the command | |
723 | * @regs : MFI register set | |
724 | */ | |
725 | static inline void | |
0c79e681 YB |
726 | megasas_fire_cmd_gen2(struct megasas_instance *instance, |
727 | dma_addr_t frame_phys_addr, | |
728 | u32 frame_count, | |
6610a6b3 YB |
729 | struct megasas_register_set __iomem *regs) |
730 | { | |
39a98554 | 731 | unsigned long flags; |
732 | spin_lock_irqsave(&instance->hba_lock, flags); | |
6610a6b3 YB |
733 | writel((frame_phys_addr | (frame_count<<1))|1, |
734 | &(regs)->inbound_queue_port); | |
39a98554 | 735 | spin_unlock_irqrestore(&instance->hba_lock, flags); |
736 | } | |
737 | ||
738 | /** | |
739 | * megasas_adp_reset_gen2 - For controller reset | |
740 | * @regs: MFI register set | |
741 | */ | |
742 | static int | |
743 | megasas_adp_reset_gen2(struct megasas_instance *instance, | |
744 | struct megasas_register_set __iomem *reg_set) | |
745 | { | |
746 | u32 retry = 0 ; | |
747 | u32 HostDiag; | |
ebf054b0 | 748 | u32 *seq_offset = ®_set->seq_offset; |
749 | u32 *hostdiag_offset = ®_set->host_diag; | |
750 | ||
751 | if (instance->instancet == &megasas_instance_template_skinny) { | |
752 | seq_offset = ®_set->fusion_seq_offset; | |
753 | hostdiag_offset = ®_set->fusion_host_diag; | |
754 | } | |
755 | ||
756 | writel(0, seq_offset); | |
757 | writel(4, seq_offset); | |
758 | writel(0xb, seq_offset); | |
759 | writel(2, seq_offset); | |
760 | writel(7, seq_offset); | |
761 | writel(0xd, seq_offset); | |
39a98554 | 762 | |
39a98554 | 763 | msleep(1000); |
764 | ||
ebf054b0 | 765 | HostDiag = (u32)readl(hostdiag_offset); |
39a98554 | 766 | |
767 | while ( !( HostDiag & DIAG_WRITE_ENABLE) ) { | |
768 | msleep(100); | |
ebf054b0 | 769 | HostDiag = (u32)readl(hostdiag_offset); |
39a98554 | 770 | printk(KERN_NOTICE "RESETGEN2: retry=%x, hostdiag=%x\n", |
771 | retry, HostDiag); | |
772 | ||
773 | if (retry++ >= 100) | |
774 | return 1; | |
775 | ||
776 | } | |
777 | ||
778 | printk(KERN_NOTICE "ADP_RESET_GEN2: HostDiag=%x\n", HostDiag); | |
779 | ||
ebf054b0 | 780 | writel((HostDiag | DIAG_RESET_ADAPTER), hostdiag_offset); |
39a98554 | 781 | |
782 | ssleep(10); | |
783 | ||
ebf054b0 | 784 | HostDiag = (u32)readl(hostdiag_offset); |
39a98554 | 785 | while ( ( HostDiag & DIAG_RESET_ADAPTER) ) { |
786 | msleep(100); | |
ebf054b0 | 787 | HostDiag = (u32)readl(hostdiag_offset); |
39a98554 | 788 | printk(KERN_NOTICE "RESET_GEN2: retry=%x, hostdiag=%x\n", |
789 | retry, HostDiag); | |
790 | ||
791 | if (retry++ >= 1000) | |
792 | return 1; | |
793 | ||
794 | } | |
795 | return 0; | |
796 | } | |
797 | ||
798 | /** | |
799 | * megasas_check_reset_gen2 - For controller reset check | |
800 | * @regs: MFI register set | |
801 | */ | |
802 | static int | |
803 | megasas_check_reset_gen2(struct megasas_instance *instance, | |
804 | struct megasas_register_set __iomem *regs) | |
805 | { | |
707e09bd YB |
806 | if (instance->adprecovery != MEGASAS_HBA_OPERATIONAL) { |
807 | return 1; | |
808 | } | |
809 | ||
39a98554 | 810 | return 0; |
6610a6b3 YB |
811 | } |
812 | ||
813 | static struct megasas_instance_template megasas_instance_template_gen2 = { | |
814 | ||
815 | .fire_cmd = megasas_fire_cmd_gen2, | |
816 | .enable_intr = megasas_enable_intr_gen2, | |
817 | .disable_intr = megasas_disable_intr_gen2, | |
818 | .clear_intr = megasas_clear_intr_gen2, | |
819 | .read_fw_status_reg = megasas_read_fw_status_reg_gen2, | |
39a98554 | 820 | .adp_reset = megasas_adp_reset_gen2, |
821 | .check_reset = megasas_check_reset_gen2, | |
cd50ba8e | 822 | .service_isr = megasas_isr, |
823 | .tasklet = megasas_complete_cmd_dpc, | |
824 | .init_adapter = megasas_init_adapter_mfi, | |
825 | .build_and_issue_cmd = megasas_build_and_issue_cmd, | |
826 | .issue_dcmd = megasas_issue_dcmd, | |
6610a6b3 YB |
827 | }; |
828 | ||
f9876f0b SP |
829 | /** |
830 | * This is the end of set of functions & definitions | |
39a98554 | 831 | * specific to gen2 (deviceid : 0x78, 0x79) controllers |
f9876f0b SP |
832 | */ |
833 | ||
9c915a8c | 834 | /* |
835 | * Template added for TB (Fusion) | |
836 | */ | |
837 | extern struct megasas_instance_template megasas_instance_template_fusion; | |
838 | ||
c4a3e0a5 BS |
839 | /** |
840 | * megasas_issue_polled - Issues a polling command | |
841 | * @instance: Adapter soft state | |
0d49016b | 842 | * @cmd: Command packet to be issued |
c4a3e0a5 BS |
843 | * |
844 | * For polling, MFI requires the cmd_status to be set to 0xFF before posting. | |
845 | */ | |
9c915a8c | 846 | int |
c4a3e0a5 BS |
847 | megasas_issue_polled(struct megasas_instance *instance, struct megasas_cmd *cmd) |
848 | { | |
c4a3e0a5 BS |
849 | |
850 | struct megasas_header *frame_hdr = &cmd->frame->hdr; | |
851 | ||
852 | frame_hdr->cmd_status = 0xFF; | |
853 | frame_hdr->flags |= MFI_FRAME_DONT_POST_IN_REPLY_QUEUE; | |
854 | ||
855 | /* | |
856 | * Issue the frame using inbound queue port | |
857 | */ | |
9c915a8c | 858 | instance->instancet->issue_dcmd(instance, cmd); |
c4a3e0a5 BS |
859 | |
860 | /* | |
861 | * Wait for cmd_status to change | |
862 | */ | |
9c915a8c | 863 | return wait_and_poll(instance, cmd); |
c4a3e0a5 BS |
864 | } |
865 | ||
866 | /** | |
867 | * megasas_issue_blocked_cmd - Synchronous wrapper around regular FW cmds | |
868 | * @instance: Adapter soft state | |
869 | * @cmd: Command to be issued | |
870 | * | |
871 | * This function waits on an event for the command to be returned from ISR. | |
2a3681e5 | 872 | * Max wait time is MEGASAS_INTERNAL_CMD_WAIT_TIME secs |
c4a3e0a5 BS |
873 | * Used to issue ioctl commands. |
874 | */ | |
875 | static int | |
876 | megasas_issue_blocked_cmd(struct megasas_instance *instance, | |
877 | struct megasas_cmd *cmd) | |
878 | { | |
879 | cmd->cmd_status = ENODATA; | |
880 | ||
9c915a8c | 881 | instance->instancet->issue_dcmd(instance, cmd); |
c4a3e0a5 | 882 | |
39a98554 | 883 | wait_event(instance->int_cmd_wait_q, cmd->cmd_status != ENODATA); |
c4a3e0a5 BS |
884 | |
885 | return 0; | |
886 | } | |
887 | ||
888 | /** | |
889 | * megasas_issue_blocked_abort_cmd - Aborts previously issued cmd | |
890 | * @instance: Adapter soft state | |
891 | * @cmd_to_abort: Previously issued cmd to be aborted | |
892 | * | |
8e572bab | 893 | * MFI firmware can abort previously issued AEN command (automatic event |
c4a3e0a5 | 894 | * notification). The megasas_issue_blocked_abort_cmd() issues such abort |
2a3681e5 SP |
895 | * cmd and waits for return status. |
896 | * Max wait time is MEGASAS_INTERNAL_CMD_WAIT_TIME secs | |
c4a3e0a5 BS |
897 | */ |
898 | static int | |
899 | megasas_issue_blocked_abort_cmd(struct megasas_instance *instance, | |
900 | struct megasas_cmd *cmd_to_abort) | |
901 | { | |
902 | struct megasas_cmd *cmd; | |
903 | struct megasas_abort_frame *abort_fr; | |
904 | ||
905 | cmd = megasas_get_cmd(instance); | |
906 | ||
907 | if (!cmd) | |
908 | return -1; | |
909 | ||
910 | abort_fr = &cmd->frame->abort; | |
911 | ||
912 | /* | |
913 | * Prepare and issue the abort frame | |
914 | */ | |
915 | abort_fr->cmd = MFI_CMD_ABORT; | |
916 | abort_fr->cmd_status = 0xFF; | |
917 | abort_fr->flags = 0; | |
918 | abort_fr->abort_context = cmd_to_abort->index; | |
919 | abort_fr->abort_mfi_phys_addr_lo = cmd_to_abort->frame_phys_addr; | |
920 | abort_fr->abort_mfi_phys_addr_hi = 0; | |
921 | ||
922 | cmd->sync_cmd = 1; | |
923 | cmd->cmd_status = 0xFF; | |
924 | ||
9c915a8c | 925 | instance->instancet->issue_dcmd(instance, cmd); |
c4a3e0a5 BS |
926 | |
927 | /* | |
928 | * Wait for this cmd to complete | |
929 | */ | |
39a98554 | 930 | wait_event(instance->abort_cmd_wait_q, cmd->cmd_status != 0xFF); |
931 | cmd->sync_cmd = 0; | |
c4a3e0a5 BS |
932 | |
933 | megasas_return_cmd(instance, cmd); | |
934 | return 0; | |
935 | } | |
936 | ||
937 | /** | |
938 | * megasas_make_sgl32 - Prepares 32-bit SGL | |
939 | * @instance: Adapter soft state | |
940 | * @scp: SCSI command from the mid-layer | |
941 | * @mfi_sgl: SGL to be filled in | |
942 | * | |
943 | * If successful, this function returns the number of SG elements. Otherwise, | |
944 | * it returnes -1. | |
945 | */ | |
858119e1 | 946 | static int |
c4a3e0a5 BS |
947 | megasas_make_sgl32(struct megasas_instance *instance, struct scsi_cmnd *scp, |
948 | union megasas_sgl *mfi_sgl) | |
949 | { | |
950 | int i; | |
951 | int sge_count; | |
952 | struct scatterlist *os_sgl; | |
953 | ||
155d98f0 FT |
954 | sge_count = scsi_dma_map(scp); |
955 | BUG_ON(sge_count < 0); | |
c4a3e0a5 | 956 | |
155d98f0 FT |
957 | if (sge_count) { |
958 | scsi_for_each_sg(scp, os_sgl, sge_count, i) { | |
959 | mfi_sgl->sge32[i].length = sg_dma_len(os_sgl); | |
960 | mfi_sgl->sge32[i].phys_addr = sg_dma_address(os_sgl); | |
961 | } | |
c4a3e0a5 | 962 | } |
c4a3e0a5 BS |
963 | return sge_count; |
964 | } | |
965 | ||
966 | /** | |
967 | * megasas_make_sgl64 - Prepares 64-bit SGL | |
968 | * @instance: Adapter soft state | |
969 | * @scp: SCSI command from the mid-layer | |
970 | * @mfi_sgl: SGL to be filled in | |
971 | * | |
972 | * If successful, this function returns the number of SG elements. Otherwise, | |
973 | * it returnes -1. | |
974 | */ | |
858119e1 | 975 | static int |
c4a3e0a5 BS |
976 | megasas_make_sgl64(struct megasas_instance *instance, struct scsi_cmnd *scp, |
977 | union megasas_sgl *mfi_sgl) | |
978 | { | |
979 | int i; | |
980 | int sge_count; | |
981 | struct scatterlist *os_sgl; | |
982 | ||
155d98f0 FT |
983 | sge_count = scsi_dma_map(scp); |
984 | BUG_ON(sge_count < 0); | |
c4a3e0a5 | 985 | |
155d98f0 FT |
986 | if (sge_count) { |
987 | scsi_for_each_sg(scp, os_sgl, sge_count, i) { | |
988 | mfi_sgl->sge64[i].length = sg_dma_len(os_sgl); | |
989 | mfi_sgl->sge64[i].phys_addr = sg_dma_address(os_sgl); | |
990 | } | |
c4a3e0a5 | 991 | } |
c4a3e0a5 BS |
992 | return sge_count; |
993 | } | |
994 | ||
f4c9a131 YB |
995 | /** |
996 | * megasas_make_sgl_skinny - Prepares IEEE SGL | |
997 | * @instance: Adapter soft state | |
998 | * @scp: SCSI command from the mid-layer | |
999 | * @mfi_sgl: SGL to be filled in | |
1000 | * | |
1001 | * If successful, this function returns the number of SG elements. Otherwise, | |
1002 | * it returnes -1. | |
1003 | */ | |
1004 | static int | |
1005 | megasas_make_sgl_skinny(struct megasas_instance *instance, | |
1006 | struct scsi_cmnd *scp, union megasas_sgl *mfi_sgl) | |
1007 | { | |
1008 | int i; | |
1009 | int sge_count; | |
1010 | struct scatterlist *os_sgl; | |
1011 | ||
1012 | sge_count = scsi_dma_map(scp); | |
1013 | ||
1014 | if (sge_count) { | |
1015 | scsi_for_each_sg(scp, os_sgl, sge_count, i) { | |
1016 | mfi_sgl->sge_skinny[i].length = sg_dma_len(os_sgl); | |
1017 | mfi_sgl->sge_skinny[i].phys_addr = | |
1018 | sg_dma_address(os_sgl); | |
707e09bd | 1019 | mfi_sgl->sge_skinny[i].flag = 0; |
f4c9a131 YB |
1020 | } |
1021 | } | |
1022 | return sge_count; | |
1023 | } | |
1024 | ||
b1df99d9 SP |
1025 | /** |
1026 | * megasas_get_frame_count - Computes the number of frames | |
d532dbe2 | 1027 | * @frame_type : type of frame- io or pthru frame |
b1df99d9 SP |
1028 | * @sge_count : number of sg elements |
1029 | * | |
1030 | * Returns the number of frames required for numnber of sge's (sge_count) | |
1031 | */ | |
1032 | ||
f4c9a131 YB |
1033 | static u32 megasas_get_frame_count(struct megasas_instance *instance, |
1034 | u8 sge_count, u8 frame_type) | |
b1df99d9 SP |
1035 | { |
1036 | int num_cnt; | |
1037 | int sge_bytes; | |
1038 | u32 sge_sz; | |
1039 | u32 frame_count=0; | |
1040 | ||
1041 | sge_sz = (IS_DMA64) ? sizeof(struct megasas_sge64) : | |
1042 | sizeof(struct megasas_sge32); | |
1043 | ||
f4c9a131 YB |
1044 | if (instance->flag_ieee) { |
1045 | sge_sz = sizeof(struct megasas_sge_skinny); | |
1046 | } | |
1047 | ||
b1df99d9 | 1048 | /* |
d532dbe2 | 1049 | * Main frame can contain 2 SGEs for 64-bit SGLs and |
1050 | * 3 SGEs for 32-bit SGLs for ldio & | |
1051 | * 1 SGEs for 64-bit SGLs and | |
1052 | * 2 SGEs for 32-bit SGLs for pthru frame | |
1053 | */ | |
1054 | if (unlikely(frame_type == PTHRU_FRAME)) { | |
f4c9a131 YB |
1055 | if (instance->flag_ieee == 1) { |
1056 | num_cnt = sge_count - 1; | |
1057 | } else if (IS_DMA64) | |
d532dbe2 | 1058 | num_cnt = sge_count - 1; |
1059 | else | |
1060 | num_cnt = sge_count - 2; | |
1061 | } else { | |
f4c9a131 YB |
1062 | if (instance->flag_ieee == 1) { |
1063 | num_cnt = sge_count - 1; | |
1064 | } else if (IS_DMA64) | |
d532dbe2 | 1065 | num_cnt = sge_count - 2; |
1066 | else | |
1067 | num_cnt = sge_count - 3; | |
1068 | } | |
b1df99d9 SP |
1069 | |
1070 | if(num_cnt>0){ | |
1071 | sge_bytes = sge_sz * num_cnt; | |
1072 | ||
1073 | frame_count = (sge_bytes / MEGAMFI_FRAME_SIZE) + | |
1074 | ((sge_bytes % MEGAMFI_FRAME_SIZE) ? 1 : 0) ; | |
1075 | } | |
1076 | /* Main frame */ | |
1077 | frame_count +=1; | |
1078 | ||
1079 | if (frame_count > 7) | |
1080 | frame_count = 8; | |
1081 | return frame_count; | |
1082 | } | |
1083 | ||
c4a3e0a5 BS |
1084 | /** |
1085 | * megasas_build_dcdb - Prepares a direct cdb (DCDB) command | |
1086 | * @instance: Adapter soft state | |
1087 | * @scp: SCSI command | |
1088 | * @cmd: Command to be prepared in | |
1089 | * | |
1090 | * This function prepares CDB commands. These are typcially pass-through | |
1091 | * commands to the devices. | |
1092 | */ | |
858119e1 | 1093 | static int |
c4a3e0a5 BS |
1094 | megasas_build_dcdb(struct megasas_instance *instance, struct scsi_cmnd *scp, |
1095 | struct megasas_cmd *cmd) | |
1096 | { | |
c4a3e0a5 BS |
1097 | u32 is_logical; |
1098 | u32 device_id; | |
1099 | u16 flags = 0; | |
1100 | struct megasas_pthru_frame *pthru; | |
1101 | ||
1102 | is_logical = MEGASAS_IS_LOGICAL(scp); | |
1103 | device_id = MEGASAS_DEV_INDEX(instance, scp); | |
1104 | pthru = (struct megasas_pthru_frame *)cmd->frame; | |
1105 | ||
1106 | if (scp->sc_data_direction == PCI_DMA_TODEVICE) | |
1107 | flags = MFI_FRAME_DIR_WRITE; | |
1108 | else if (scp->sc_data_direction == PCI_DMA_FROMDEVICE) | |
1109 | flags = MFI_FRAME_DIR_READ; | |
1110 | else if (scp->sc_data_direction == PCI_DMA_NONE) | |
1111 | flags = MFI_FRAME_DIR_NONE; | |
1112 | ||
f4c9a131 YB |
1113 | if (instance->flag_ieee == 1) { |
1114 | flags |= MFI_FRAME_IEEE; | |
1115 | } | |
1116 | ||
c4a3e0a5 BS |
1117 | /* |
1118 | * Prepare the DCDB frame | |
1119 | */ | |
1120 | pthru->cmd = (is_logical) ? MFI_CMD_LD_SCSI_IO : MFI_CMD_PD_SCSI_IO; | |
1121 | pthru->cmd_status = 0x0; | |
1122 | pthru->scsi_status = 0x0; | |
1123 | pthru->target_id = device_id; | |
1124 | pthru->lun = scp->device->lun; | |
1125 | pthru->cdb_len = scp->cmd_len; | |
1126 | pthru->timeout = 0; | |
780a3762 | 1127 | pthru->pad_0 = 0; |
c4a3e0a5 | 1128 | pthru->flags = flags; |
155d98f0 | 1129 | pthru->data_xfer_len = scsi_bufflen(scp); |
c4a3e0a5 BS |
1130 | |
1131 | memcpy(pthru->cdb, scp->cmnd, scp->cmd_len); | |
1132 | ||
8d568253 YB |
1133 | /* |
1134 | * If the command is for the tape device, set the | |
1135 | * pthru timeout to the os layer timeout value. | |
1136 | */ | |
1137 | if (scp->device->type == TYPE_TAPE) { | |
1138 | if ((scp->request->timeout / HZ) > 0xFFFF) | |
1139 | pthru->timeout = 0xFFFF; | |
1140 | else | |
1141 | pthru->timeout = scp->request->timeout / HZ; | |
1142 | } | |
1143 | ||
c4a3e0a5 BS |
1144 | /* |
1145 | * Construct SGL | |
1146 | */ | |
f4c9a131 YB |
1147 | if (instance->flag_ieee == 1) { |
1148 | pthru->flags |= MFI_FRAME_SGL64; | |
1149 | pthru->sge_count = megasas_make_sgl_skinny(instance, scp, | |
1150 | &pthru->sgl); | |
1151 | } else if (IS_DMA64) { | |
c4a3e0a5 BS |
1152 | pthru->flags |= MFI_FRAME_SGL64; |
1153 | pthru->sge_count = megasas_make_sgl64(instance, scp, | |
1154 | &pthru->sgl); | |
1155 | } else | |
1156 | pthru->sge_count = megasas_make_sgl32(instance, scp, | |
1157 | &pthru->sgl); | |
1158 | ||
bdc6fb8d YB |
1159 | if (pthru->sge_count > instance->max_num_sge) { |
1160 | printk(KERN_ERR "megasas: DCDB two many SGE NUM=%x\n", | |
1161 | pthru->sge_count); | |
1162 | return 0; | |
1163 | } | |
1164 | ||
c4a3e0a5 BS |
1165 | /* |
1166 | * Sense info specific | |
1167 | */ | |
1168 | pthru->sense_len = SCSI_SENSE_BUFFERSIZE; | |
1169 | pthru->sense_buf_phys_addr_hi = 0; | |
1170 | pthru->sense_buf_phys_addr_lo = cmd->sense_phys_addr; | |
1171 | ||
c4a3e0a5 BS |
1172 | /* |
1173 | * Compute the total number of frames this command consumes. FW uses | |
1174 | * this number to pull sufficient number of frames from host memory. | |
1175 | */ | |
f4c9a131 | 1176 | cmd->frame_count = megasas_get_frame_count(instance, pthru->sge_count, |
d532dbe2 | 1177 | PTHRU_FRAME); |
c4a3e0a5 BS |
1178 | |
1179 | return cmd->frame_count; | |
1180 | } | |
1181 | ||
1182 | /** | |
1183 | * megasas_build_ldio - Prepares IOs to logical devices | |
1184 | * @instance: Adapter soft state | |
1185 | * @scp: SCSI command | |
fd589a8f | 1186 | * @cmd: Command to be prepared |
c4a3e0a5 BS |
1187 | * |
1188 | * Frames (and accompanying SGLs) for regular SCSI IOs use this function. | |
1189 | */ | |
858119e1 | 1190 | static int |
c4a3e0a5 BS |
1191 | megasas_build_ldio(struct megasas_instance *instance, struct scsi_cmnd *scp, |
1192 | struct megasas_cmd *cmd) | |
1193 | { | |
c4a3e0a5 BS |
1194 | u32 device_id; |
1195 | u8 sc = scp->cmnd[0]; | |
1196 | u16 flags = 0; | |
1197 | struct megasas_io_frame *ldio; | |
1198 | ||
1199 | device_id = MEGASAS_DEV_INDEX(instance, scp); | |
1200 | ldio = (struct megasas_io_frame *)cmd->frame; | |
1201 | ||
1202 | if (scp->sc_data_direction == PCI_DMA_TODEVICE) | |
1203 | flags = MFI_FRAME_DIR_WRITE; | |
1204 | else if (scp->sc_data_direction == PCI_DMA_FROMDEVICE) | |
1205 | flags = MFI_FRAME_DIR_READ; | |
1206 | ||
f4c9a131 YB |
1207 | if (instance->flag_ieee == 1) { |
1208 | flags |= MFI_FRAME_IEEE; | |
1209 | } | |
1210 | ||
c4a3e0a5 | 1211 | /* |
b1df99d9 | 1212 | * Prepare the Logical IO frame: 2nd bit is zero for all read cmds |
c4a3e0a5 BS |
1213 | */ |
1214 | ldio->cmd = (sc & 0x02) ? MFI_CMD_LD_WRITE : MFI_CMD_LD_READ; | |
1215 | ldio->cmd_status = 0x0; | |
1216 | ldio->scsi_status = 0x0; | |
1217 | ldio->target_id = device_id; | |
1218 | ldio->timeout = 0; | |
1219 | ldio->reserved_0 = 0; | |
1220 | ldio->pad_0 = 0; | |
1221 | ldio->flags = flags; | |
1222 | ldio->start_lba_hi = 0; | |
1223 | ldio->access_byte = (scp->cmd_len != 6) ? scp->cmnd[1] : 0; | |
1224 | ||
1225 | /* | |
1226 | * 6-byte READ(0x08) or WRITE(0x0A) cdb | |
1227 | */ | |
1228 | if (scp->cmd_len == 6) { | |
1229 | ldio->lba_count = (u32) scp->cmnd[4]; | |
1230 | ldio->start_lba_lo = ((u32) scp->cmnd[1] << 16) | | |
1231 | ((u32) scp->cmnd[2] << 8) | (u32) scp->cmnd[3]; | |
1232 | ||
1233 | ldio->start_lba_lo &= 0x1FFFFF; | |
1234 | } | |
1235 | ||
1236 | /* | |
1237 | * 10-byte READ(0x28) or WRITE(0x2A) cdb | |
1238 | */ | |
1239 | else if (scp->cmd_len == 10) { | |
1240 | ldio->lba_count = (u32) scp->cmnd[8] | | |
1241 | ((u32) scp->cmnd[7] << 8); | |
1242 | ldio->start_lba_lo = ((u32) scp->cmnd[2] << 24) | | |
1243 | ((u32) scp->cmnd[3] << 16) | | |
1244 | ((u32) scp->cmnd[4] << 8) | (u32) scp->cmnd[5]; | |
1245 | } | |
1246 | ||
1247 | /* | |
1248 | * 12-byte READ(0xA8) or WRITE(0xAA) cdb | |
1249 | */ | |
1250 | else if (scp->cmd_len == 12) { | |
1251 | ldio->lba_count = ((u32) scp->cmnd[6] << 24) | | |
1252 | ((u32) scp->cmnd[7] << 16) | | |
1253 | ((u32) scp->cmnd[8] << 8) | (u32) scp->cmnd[9]; | |
1254 | ||
1255 | ldio->start_lba_lo = ((u32) scp->cmnd[2] << 24) | | |
1256 | ((u32) scp->cmnd[3] << 16) | | |
1257 | ((u32) scp->cmnd[4] << 8) | (u32) scp->cmnd[5]; | |
1258 | } | |
1259 | ||
1260 | /* | |
1261 | * 16-byte READ(0x88) or WRITE(0x8A) cdb | |
1262 | */ | |
1263 | else if (scp->cmd_len == 16) { | |
1264 | ldio->lba_count = ((u32) scp->cmnd[10] << 24) | | |
1265 | ((u32) scp->cmnd[11] << 16) | | |
1266 | ((u32) scp->cmnd[12] << 8) | (u32) scp->cmnd[13]; | |
1267 | ||
1268 | ldio->start_lba_lo = ((u32) scp->cmnd[6] << 24) | | |
1269 | ((u32) scp->cmnd[7] << 16) | | |
1270 | ((u32) scp->cmnd[8] << 8) | (u32) scp->cmnd[9]; | |
1271 | ||
1272 | ldio->start_lba_hi = ((u32) scp->cmnd[2] << 24) | | |
1273 | ((u32) scp->cmnd[3] << 16) | | |
1274 | ((u32) scp->cmnd[4] << 8) | (u32) scp->cmnd[5]; | |
1275 | ||
1276 | } | |
1277 | ||
1278 | /* | |
1279 | * Construct SGL | |
1280 | */ | |
f4c9a131 YB |
1281 | if (instance->flag_ieee) { |
1282 | ldio->flags |= MFI_FRAME_SGL64; | |
1283 | ldio->sge_count = megasas_make_sgl_skinny(instance, scp, | |
1284 | &ldio->sgl); | |
1285 | } else if (IS_DMA64) { | |
c4a3e0a5 BS |
1286 | ldio->flags |= MFI_FRAME_SGL64; |
1287 | ldio->sge_count = megasas_make_sgl64(instance, scp, &ldio->sgl); | |
1288 | } else | |
1289 | ldio->sge_count = megasas_make_sgl32(instance, scp, &ldio->sgl); | |
1290 | ||
bdc6fb8d YB |
1291 | if (ldio->sge_count > instance->max_num_sge) { |
1292 | printk(KERN_ERR "megasas: build_ld_io: sge_count = %x\n", | |
1293 | ldio->sge_count); | |
1294 | return 0; | |
1295 | } | |
1296 | ||
c4a3e0a5 BS |
1297 | /* |
1298 | * Sense info specific | |
1299 | */ | |
1300 | ldio->sense_len = SCSI_SENSE_BUFFERSIZE; | |
1301 | ldio->sense_buf_phys_addr_hi = 0; | |
1302 | ldio->sense_buf_phys_addr_lo = cmd->sense_phys_addr; | |
1303 | ||
b1df99d9 SP |
1304 | /* |
1305 | * Compute the total number of frames this command consumes. FW uses | |
1306 | * this number to pull sufficient number of frames from host memory. | |
1307 | */ | |
f4c9a131 YB |
1308 | cmd->frame_count = megasas_get_frame_count(instance, |
1309 | ldio->sge_count, IO_FRAME); | |
c4a3e0a5 BS |
1310 | |
1311 | return cmd->frame_count; | |
1312 | } | |
1313 | ||
1314 | /** | |
cb59aa6a SP |
1315 | * megasas_is_ldio - Checks if the cmd is for logical drive |
1316 | * @scmd: SCSI command | |
0d49016b | 1317 | * |
cb59aa6a | 1318 | * Called by megasas_queue_command to find out if the command to be queued |
0d49016b | 1319 | * is a logical drive command |
c4a3e0a5 | 1320 | */ |
9c915a8c | 1321 | inline int megasas_is_ldio(struct scsi_cmnd *cmd) |
c4a3e0a5 | 1322 | { |
cb59aa6a SP |
1323 | if (!MEGASAS_IS_LOGICAL(cmd)) |
1324 | return 0; | |
1325 | switch (cmd->cmnd[0]) { | |
1326 | case READ_10: | |
1327 | case WRITE_10: | |
1328 | case READ_12: | |
1329 | case WRITE_12: | |
1330 | case READ_6: | |
1331 | case WRITE_6: | |
1332 | case READ_16: | |
1333 | case WRITE_16: | |
1334 | return 1; | |
1335 | default: | |
1336 | return 0; | |
c4a3e0a5 | 1337 | } |
c4a3e0a5 BS |
1338 | } |
1339 | ||
658dcedb SP |
1340 | /** |
1341 | * megasas_dump_pending_frames - Dumps the frame address of all pending cmds | |
1342 | * in FW | |
1343 | * @instance: Adapter soft state | |
1344 | */ | |
1345 | static inline void | |
1346 | megasas_dump_pending_frames(struct megasas_instance *instance) | |
1347 | { | |
1348 | struct megasas_cmd *cmd; | |
1349 | int i,n; | |
1350 | union megasas_sgl *mfi_sgl; | |
1351 | struct megasas_io_frame *ldio; | |
1352 | struct megasas_pthru_frame *pthru; | |
1353 | u32 sgcount; | |
1354 | u32 max_cmd = instance->max_fw_cmds; | |
1355 | ||
1356 | printk(KERN_ERR "\nmegasas[%d]: Dumping Frame Phys Address of all pending cmds in FW\n",instance->host->host_no); | |
1357 | printk(KERN_ERR "megasas[%d]: Total OS Pending cmds : %d\n",instance->host->host_no,atomic_read(&instance->fw_outstanding)); | |
1358 | if (IS_DMA64) | |
1359 | printk(KERN_ERR "\nmegasas[%d]: 64 bit SGLs were sent to FW\n",instance->host->host_no); | |
1360 | else | |
1361 | printk(KERN_ERR "\nmegasas[%d]: 32 bit SGLs were sent to FW\n",instance->host->host_no); | |
1362 | ||
1363 | printk(KERN_ERR "megasas[%d]: Pending OS cmds in FW : \n",instance->host->host_no); | |
1364 | for (i = 0; i < max_cmd; i++) { | |
1365 | cmd = instance->cmd_list[i]; | |
1366 | if(!cmd->scmd) | |
1367 | continue; | |
1368 | printk(KERN_ERR "megasas[%d]: Frame addr :0x%08lx : ",instance->host->host_no,(unsigned long)cmd->frame_phys_addr); | |
1369 | if (megasas_is_ldio(cmd->scmd)){ | |
1370 | ldio = (struct megasas_io_frame *)cmd->frame; | |
1371 | mfi_sgl = &ldio->sgl; | |
1372 | sgcount = ldio->sge_count; | |
1373 | printk(KERN_ERR "megasas[%d]: frame count : 0x%x, Cmd : 0x%x, Tgt id : 0x%x, lba lo : 0x%x, lba_hi : 0x%x, sense_buf addr : 0x%x,sge count : 0x%x\n",instance->host->host_no, cmd->frame_count,ldio->cmd,ldio->target_id, ldio->start_lba_lo,ldio->start_lba_hi,ldio->sense_buf_phys_addr_lo,sgcount); | |
1374 | } | |
1375 | else { | |
1376 | pthru = (struct megasas_pthru_frame *) cmd->frame; | |
1377 | mfi_sgl = &pthru->sgl; | |
1378 | sgcount = pthru->sge_count; | |
1379 | printk(KERN_ERR "megasas[%d]: frame count : 0x%x, Cmd : 0x%x, Tgt id : 0x%x, lun : 0x%x, cdb_len : 0x%x, data xfer len : 0x%x, sense_buf addr : 0x%x,sge count : 0x%x\n",instance->host->host_no,cmd->frame_count,pthru->cmd,pthru->target_id,pthru->lun,pthru->cdb_len , pthru->data_xfer_len,pthru->sense_buf_phys_addr_lo,sgcount); | |
1380 | } | |
1381 | if(megasas_dbg_lvl & MEGASAS_DBG_LVL){ | |
1382 | for (n = 0; n < sgcount; n++){ | |
1383 | if (IS_DMA64) | |
1384 | printk(KERN_ERR "megasas: sgl len : 0x%x, sgl addr : 0x%08lx ",mfi_sgl->sge64[n].length , (unsigned long)mfi_sgl->sge64[n].phys_addr) ; | |
1385 | else | |
1386 | printk(KERN_ERR "megasas: sgl len : 0x%x, sgl addr : 0x%x ",mfi_sgl->sge32[n].length , mfi_sgl->sge32[n].phys_addr) ; | |
1387 | } | |
1388 | } | |
1389 | printk(KERN_ERR "\n"); | |
1390 | } /*for max_cmd*/ | |
1391 | printk(KERN_ERR "\nmegasas[%d]: Pending Internal cmds in FW : \n",instance->host->host_no); | |
1392 | for (i = 0; i < max_cmd; i++) { | |
1393 | ||
1394 | cmd = instance->cmd_list[i]; | |
1395 | ||
1396 | if(cmd->sync_cmd == 1){ | |
1397 | printk(KERN_ERR "0x%08lx : ", (unsigned long)cmd->frame_phys_addr); | |
1398 | } | |
1399 | } | |
1400 | printk(KERN_ERR "megasas[%d]: Dumping Done.\n\n",instance->host->host_no); | |
1401 | } | |
1402 | ||
cd50ba8e | 1403 | u32 |
1404 | megasas_build_and_issue_cmd(struct megasas_instance *instance, | |
1405 | struct scsi_cmnd *scmd) | |
1406 | { | |
1407 | struct megasas_cmd *cmd; | |
1408 | u32 frame_count; | |
1409 | ||
1410 | cmd = megasas_get_cmd(instance); | |
1411 | if (!cmd) | |
1412 | return SCSI_MLQUEUE_HOST_BUSY; | |
1413 | ||
1414 | /* | |
1415 | * Logical drive command | |
1416 | */ | |
1417 | if (megasas_is_ldio(scmd)) | |
1418 | frame_count = megasas_build_ldio(instance, scmd, cmd); | |
1419 | else | |
1420 | frame_count = megasas_build_dcdb(instance, scmd, cmd); | |
1421 | ||
1422 | if (!frame_count) | |
1423 | goto out_return_cmd; | |
1424 | ||
1425 | cmd->scmd = scmd; | |
1426 | scmd->SCp.ptr = (char *)cmd; | |
1427 | ||
1428 | /* | |
1429 | * Issue the command to the FW | |
1430 | */ | |
1431 | atomic_inc(&instance->fw_outstanding); | |
1432 | ||
1433 | instance->instancet->fire_cmd(instance, cmd->frame_phys_addr, | |
1434 | cmd->frame_count-1, instance->reg_set); | |
1435 | /* | |
1436 | * Check if we have pend cmds to be completed | |
1437 | */ | |
1438 | if (poll_mode_io && atomic_read(&instance->fw_outstanding)) | |
1439 | tasklet_schedule(&instance->isr_tasklet); | |
1440 | ||
1441 | return 0; | |
1442 | out_return_cmd: | |
1443 | megasas_return_cmd(instance, cmd); | |
1444 | return 1; | |
1445 | } | |
1446 | ||
1447 | ||
c4a3e0a5 BS |
1448 | /** |
1449 | * megasas_queue_command - Queue entry point | |
1450 | * @scmd: SCSI command to be queued | |
1451 | * @done: Callback entry point | |
1452 | */ | |
1453 | static int | |
f281233d | 1454 | megasas_queue_command_lck(struct scsi_cmnd *scmd, void (*done) (struct scsi_cmnd *)) |
c4a3e0a5 | 1455 | { |
c4a3e0a5 | 1456 | struct megasas_instance *instance; |
39a98554 | 1457 | unsigned long flags; |
c4a3e0a5 BS |
1458 | |
1459 | instance = (struct megasas_instance *) | |
1460 | scmd->device->host->hostdata; | |
af37acfb | 1461 | |
39a98554 | 1462 | if (instance->issuepend_done == 0) |
af37acfb SP |
1463 | return SCSI_MLQUEUE_HOST_BUSY; |
1464 | ||
39a98554 | 1465 | spin_lock_irqsave(&instance->hba_lock, flags); |
1466 | if (instance->adprecovery != MEGASAS_HBA_OPERATIONAL) { | |
1467 | spin_unlock_irqrestore(&instance->hba_lock, flags); | |
1468 | return SCSI_MLQUEUE_HOST_BUSY; | |
1469 | } | |
1470 | ||
1471 | spin_unlock_irqrestore(&instance->hba_lock, flags); | |
1472 | ||
c4a3e0a5 BS |
1473 | scmd->scsi_done = done; |
1474 | scmd->result = 0; | |
1475 | ||
cb59aa6a SP |
1476 | if (MEGASAS_IS_LOGICAL(scmd) && |
1477 | (scmd->device->id >= MEGASAS_MAX_LD || scmd->device->lun)) { | |
1478 | scmd->result = DID_BAD_TARGET << 16; | |
1479 | goto out_done; | |
c4a3e0a5 BS |
1480 | } |
1481 | ||
02b01e01 SP |
1482 | switch (scmd->cmnd[0]) { |
1483 | case SYNCHRONIZE_CACHE: | |
1484 | /* | |
1485 | * FW takes care of flush cache on its own | |
1486 | * No need to send it down | |
1487 | */ | |
1488 | scmd->result = DID_OK << 16; | |
1489 | goto out_done; | |
1490 | default: | |
1491 | break; | |
1492 | } | |
1493 | ||
cd50ba8e | 1494 | if (instance->instancet->build_and_issue_cmd(instance, scmd)) { |
1495 | printk(KERN_ERR "megasas: Err returned from build_and_issue_cmd\n"); | |
cb59aa6a | 1496 | return SCSI_MLQUEUE_HOST_BUSY; |
cd50ba8e | 1497 | } |
c4a3e0a5 BS |
1498 | |
1499 | return 0; | |
cb59aa6a | 1500 | |
cb59aa6a SP |
1501 | out_done: |
1502 | done(scmd); | |
1503 | return 0; | |
c4a3e0a5 BS |
1504 | } |
1505 | ||
f281233d JG |
1506 | static DEF_SCSI_QCMD(megasas_queue_command) |
1507 | ||
044833b5 YB |
1508 | static struct megasas_instance *megasas_lookup_instance(u16 host_no) |
1509 | { | |
1510 | int i; | |
1511 | ||
1512 | for (i = 0; i < megasas_mgmt_info.max_index; i++) { | |
1513 | ||
1514 | if ((megasas_mgmt_info.instance[i]) && | |
1515 | (megasas_mgmt_info.instance[i]->host->host_no == host_no)) | |
1516 | return megasas_mgmt_info.instance[i]; | |
1517 | } | |
1518 | ||
1519 | return NULL; | |
1520 | } | |
1521 | ||
147aab6a CH |
1522 | static int megasas_slave_configure(struct scsi_device *sdev) |
1523 | { | |
044833b5 YB |
1524 | u16 pd_index = 0; |
1525 | struct megasas_instance *instance ; | |
1526 | ||
1527 | instance = megasas_lookup_instance(sdev->host->host_no); | |
1528 | ||
147aab6a | 1529 | /* |
044833b5 YB |
1530 | * Don't export physical disk devices to the disk driver. |
1531 | * | |
1532 | * FIXME: Currently we don't export them to the midlayer at all. | |
1533 | * That will be fixed once LSI engineers have audited the | |
1534 | * firmware for possible issues. | |
1535 | */ | |
1536 | if (sdev->channel < MEGASAS_MAX_PD_CHANNELS && | |
1537 | sdev->type == TYPE_DISK) { | |
1538 | pd_index = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + | |
1539 | sdev->id; | |
1540 | if (instance->pd_list[pd_index].driveState == | |
1541 | MR_PD_STATE_SYSTEM) { | |
1542 | blk_queue_rq_timeout(sdev->request_queue, | |
1543 | MEGASAS_DEFAULT_CMD_TIMEOUT * HZ); | |
1544 | return 0; | |
1545 | } | |
147aab6a | 1546 | return -ENXIO; |
044833b5 | 1547 | } |
e5b3a65f CH |
1548 | |
1549 | /* | |
044833b5 YB |
1550 | * The RAID firmware may require extended timeouts. |
1551 | */ | |
1552 | blk_queue_rq_timeout(sdev->request_queue, | |
1553 | MEGASAS_DEFAULT_CMD_TIMEOUT * HZ); | |
1554 | return 0; | |
1555 | } | |
1556 | ||
1557 | static int megasas_slave_alloc(struct scsi_device *sdev) | |
1558 | { | |
1559 | u16 pd_index = 0; | |
1560 | struct megasas_instance *instance ; | |
1561 | instance = megasas_lookup_instance(sdev->host->host_no); | |
1562 | if ((sdev->channel < MEGASAS_MAX_PD_CHANNELS) && | |
1563 | (sdev->type == TYPE_DISK)) { | |
1564 | /* | |
1565 | * Open the OS scan to the SYSTEM PD | |
1566 | */ | |
1567 | pd_index = | |
1568 | (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + | |
1569 | sdev->id; | |
1570 | if ((instance->pd_list[pd_index].driveState == | |
1571 | MR_PD_STATE_SYSTEM) && | |
1572 | (instance->pd_list[pd_index].driveType == | |
1573 | TYPE_DISK)) { | |
1574 | return 0; | |
1575 | } | |
1576 | return -ENXIO; | |
1577 | } | |
147aab6a CH |
1578 | return 0; |
1579 | } | |
1580 | ||
9c915a8c | 1581 | void megaraid_sas_kill_hba(struct megasas_instance *instance) |
39a98554 | 1582 | { |
1583 | if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) || | |
9c915a8c | 1584 | (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY) || |
1585 | (instance->pdev->device == PCI_DEVICE_ID_LSI_FUSION)) { | |
1586 | writel(MFI_STOP_ADP, &instance->reg_set->doorbell); | |
39a98554 | 1587 | } else { |
9c915a8c | 1588 | writel(MFI_STOP_ADP, &instance->reg_set->inbound_doorbell); |
1589 | } | |
1590 | } | |
1591 | ||
1592 | /** | |
1593 | * megasas_check_and_restore_queue_depth - Check if queue depth needs to be | |
1594 | * restored to max value | |
1595 | * @instance: Adapter soft state | |
1596 | * | |
1597 | */ | |
1598 | void | |
1599 | megasas_check_and_restore_queue_depth(struct megasas_instance *instance) | |
1600 | { | |
1601 | unsigned long flags; | |
1602 | if (instance->flag & MEGASAS_FW_BUSY | |
1603 | && time_after(jiffies, instance->last_time + 5 * HZ) | |
1604 | && atomic_read(&instance->fw_outstanding) < 17) { | |
1605 | ||
1606 | spin_lock_irqsave(instance->host->host_lock, flags); | |
1607 | instance->flag &= ~MEGASAS_FW_BUSY; | |
1608 | if ((instance->pdev->device == | |
1609 | PCI_DEVICE_ID_LSI_SAS0073SKINNY) || | |
1610 | (instance->pdev->device == | |
1611 | PCI_DEVICE_ID_LSI_SAS0071SKINNY)) { | |
1612 | instance->host->can_queue = | |
1613 | instance->max_fw_cmds - MEGASAS_SKINNY_INT_CMDS; | |
1614 | } else | |
1615 | instance->host->can_queue = | |
1616 | instance->max_fw_cmds - MEGASAS_INT_CMDS; | |
1617 | ||
1618 | spin_unlock_irqrestore(instance->host->host_lock, flags); | |
39a98554 | 1619 | } |
1620 | } | |
1621 | ||
7343eb65 | 1622 | /** |
1623 | * megasas_complete_cmd_dpc - Returns FW's controller structure | |
1624 | * @instance_addr: Address of adapter soft state | |
1625 | * | |
1626 | * Tasklet to complete cmds | |
1627 | */ | |
1628 | static void megasas_complete_cmd_dpc(unsigned long instance_addr) | |
1629 | { | |
1630 | u32 producer; | |
1631 | u32 consumer; | |
1632 | u32 context; | |
1633 | struct megasas_cmd *cmd; | |
1634 | struct megasas_instance *instance = | |
1635 | (struct megasas_instance *)instance_addr; | |
1636 | unsigned long flags; | |
1637 | ||
1638 | /* If we have already declared adapter dead, donot complete cmds */ | |
39a98554 | 1639 | if (instance->adprecovery == MEGASAS_HW_CRITICAL_ERROR ) |
7343eb65 | 1640 | return; |
1641 | ||
1642 | spin_lock_irqsave(&instance->completion_lock, flags); | |
1643 | ||
1644 | producer = *instance->producer; | |
1645 | consumer = *instance->consumer; | |
1646 | ||
1647 | while (consumer != producer) { | |
1648 | context = instance->reply_queue[consumer]; | |
39a98554 | 1649 | if (context >= instance->max_fw_cmds) { |
1650 | printk(KERN_ERR "Unexpected context value %x\n", | |
1651 | context); | |
1652 | BUG(); | |
1653 | } | |
7343eb65 | 1654 | |
1655 | cmd = instance->cmd_list[context]; | |
1656 | ||
1657 | megasas_complete_cmd(instance, cmd, DID_OK); | |
1658 | ||
1659 | consumer++; | |
1660 | if (consumer == (instance->max_fw_cmds + 1)) { | |
1661 | consumer = 0; | |
1662 | } | |
1663 | } | |
1664 | ||
1665 | *instance->consumer = producer; | |
1666 | ||
1667 | spin_unlock_irqrestore(&instance->completion_lock, flags); | |
1668 | ||
1669 | /* | |
1670 | * Check if we can restore can_queue | |
1671 | */ | |
9c915a8c | 1672 | megasas_check_and_restore_queue_depth(instance); |
7343eb65 | 1673 | } |
1674 | ||
707e09bd YB |
1675 | static void |
1676 | megasas_internal_reset_defer_cmds(struct megasas_instance *instance); | |
1677 | ||
1678 | static void | |
1679 | process_fw_state_change_wq(struct work_struct *work); | |
1680 | ||
1681 | void megasas_do_ocr(struct megasas_instance *instance) | |
1682 | { | |
1683 | if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS1064R) || | |
1684 | (instance->pdev->device == PCI_DEVICE_ID_DELL_PERC5) || | |
1685 | (instance->pdev->device == PCI_DEVICE_ID_LSI_VERDE_ZCR)) { | |
1686 | *instance->consumer = MEGASAS_ADPRESET_INPROG_SIGN; | |
1687 | } | |
1688 | instance->instancet->disable_intr(instance->reg_set); | |
1689 | instance->adprecovery = MEGASAS_ADPRESET_SM_INFAULT; | |
1690 | instance->issuepend_done = 0; | |
1691 | ||
1692 | atomic_set(&instance->fw_outstanding, 0); | |
1693 | megasas_internal_reset_defer_cmds(instance); | |
1694 | process_fw_state_change_wq(&instance->work_init); | |
1695 | } | |
1696 | ||
c4a3e0a5 BS |
1697 | /** |
1698 | * megasas_wait_for_outstanding - Wait for all outstanding cmds | |
1699 | * @instance: Adapter soft state | |
1700 | * | |
25985edc | 1701 | * This function waits for up to MEGASAS_RESET_WAIT_TIME seconds for FW to |
c4a3e0a5 BS |
1702 | * complete all its outstanding commands. Returns error if one or more IOs |
1703 | * are pending after this time period. It also marks the controller dead. | |
1704 | */ | |
1705 | static int megasas_wait_for_outstanding(struct megasas_instance *instance) | |
1706 | { | |
1707 | int i; | |
39a98554 | 1708 | u32 reset_index; |
c4a3e0a5 | 1709 | u32 wait_time = MEGASAS_RESET_WAIT_TIME; |
39a98554 | 1710 | u8 adprecovery; |
1711 | unsigned long flags; | |
1712 | struct list_head clist_local; | |
1713 | struct megasas_cmd *reset_cmd; | |
707e09bd YB |
1714 | u32 fw_state; |
1715 | u8 kill_adapter_flag; | |
39a98554 | 1716 | |
1717 | spin_lock_irqsave(&instance->hba_lock, flags); | |
1718 | adprecovery = instance->adprecovery; | |
1719 | spin_unlock_irqrestore(&instance->hba_lock, flags); | |
1720 | ||
1721 | if (adprecovery != MEGASAS_HBA_OPERATIONAL) { | |
1722 | ||
1723 | INIT_LIST_HEAD(&clist_local); | |
1724 | spin_lock_irqsave(&instance->hba_lock, flags); | |
1725 | list_splice_init(&instance->internal_reset_pending_q, | |
1726 | &clist_local); | |
1727 | spin_unlock_irqrestore(&instance->hba_lock, flags); | |
1728 | ||
1729 | printk(KERN_NOTICE "megasas: HBA reset wait ...\n"); | |
1730 | for (i = 0; i < wait_time; i++) { | |
1731 | msleep(1000); | |
1732 | spin_lock_irqsave(&instance->hba_lock, flags); | |
1733 | adprecovery = instance->adprecovery; | |
1734 | spin_unlock_irqrestore(&instance->hba_lock, flags); | |
1735 | if (adprecovery == MEGASAS_HBA_OPERATIONAL) | |
1736 | break; | |
1737 | } | |
1738 | ||
1739 | if (adprecovery != MEGASAS_HBA_OPERATIONAL) { | |
1740 | printk(KERN_NOTICE "megasas: reset: Stopping HBA.\n"); | |
1741 | spin_lock_irqsave(&instance->hba_lock, flags); | |
1742 | instance->adprecovery = MEGASAS_HW_CRITICAL_ERROR; | |
1743 | spin_unlock_irqrestore(&instance->hba_lock, flags); | |
1744 | return FAILED; | |
1745 | } | |
1746 | ||
1747 | reset_index = 0; | |
1748 | while (!list_empty(&clist_local)) { | |
1749 | reset_cmd = list_entry((&clist_local)->next, | |
1750 | struct megasas_cmd, list); | |
1751 | list_del_init(&reset_cmd->list); | |
1752 | if (reset_cmd->scmd) { | |
1753 | reset_cmd->scmd->result = DID_RESET << 16; | |
1754 | printk(KERN_NOTICE "%d:%p reset [%02x], %#lx\n", | |
1755 | reset_index, reset_cmd, | |
1756 | reset_cmd->scmd->cmnd[0], | |
1757 | reset_cmd->scmd->serial_number); | |
1758 | ||
1759 | reset_cmd->scmd->scsi_done(reset_cmd->scmd); | |
1760 | megasas_return_cmd(instance, reset_cmd); | |
1761 | } else if (reset_cmd->sync_cmd) { | |
1762 | printk(KERN_NOTICE "megasas:%p synch cmds" | |
1763 | "reset queue\n", | |
1764 | reset_cmd); | |
1765 | ||
1766 | reset_cmd->cmd_status = ENODATA; | |
1767 | instance->instancet->fire_cmd(instance, | |
1768 | reset_cmd->frame_phys_addr, | |
1769 | 0, instance->reg_set); | |
1770 | } else { | |
1771 | printk(KERN_NOTICE "megasas: %p unexpected" | |
1772 | "cmds lst\n", | |
1773 | reset_cmd); | |
1774 | } | |
1775 | reset_index++; | |
1776 | } | |
1777 | ||
1778 | return SUCCESS; | |
1779 | } | |
c4a3e0a5 BS |
1780 | |
1781 | for (i = 0; i < wait_time; i++) { | |
1782 | ||
e4a082c7 SP |
1783 | int outstanding = atomic_read(&instance->fw_outstanding); |
1784 | ||
1785 | if (!outstanding) | |
c4a3e0a5 BS |
1786 | break; |
1787 | ||
1788 | if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) { | |
1789 | printk(KERN_NOTICE "megasas: [%2d]waiting for %d " | |
e4a082c7 | 1790 | "commands to complete\n",i,outstanding); |
7343eb65 | 1791 | /* |
1792 | * Call cmd completion routine. Cmd to be | |
1793 | * be completed directly without depending on isr. | |
1794 | */ | |
1795 | megasas_complete_cmd_dpc((unsigned long)instance); | |
c4a3e0a5 BS |
1796 | } |
1797 | ||
1798 | msleep(1000); | |
1799 | } | |
1800 | ||
707e09bd YB |
1801 | i = 0; |
1802 | kill_adapter_flag = 0; | |
1803 | do { | |
1804 | fw_state = instance->instancet->read_fw_status_reg( | |
1805 | instance->reg_set) & MFI_STATE_MASK; | |
1806 | if ((fw_state == MFI_STATE_FAULT) && | |
1807 | (instance->disableOnlineCtrlReset == 0)) { | |
1808 | if (i == 3) { | |
1809 | kill_adapter_flag = 2; | |
1810 | break; | |
1811 | } | |
1812 | megasas_do_ocr(instance); | |
1813 | kill_adapter_flag = 1; | |
1814 | ||
1815 | /* wait for 1 secs to let FW finish the pending cmds */ | |
1816 | msleep(1000); | |
1817 | } | |
1818 | i++; | |
1819 | } while (i <= 3); | |
1820 | ||
1821 | if (atomic_read(&instance->fw_outstanding) && | |
1822 | !kill_adapter_flag) { | |
1823 | if (instance->disableOnlineCtrlReset == 0) { | |
1824 | ||
1825 | megasas_do_ocr(instance); | |
1826 | ||
1827 | /* wait for 5 secs to let FW finish the pending cmds */ | |
1828 | for (i = 0; i < wait_time; i++) { | |
1829 | int outstanding = | |
1830 | atomic_read(&instance->fw_outstanding); | |
1831 | if (!outstanding) | |
1832 | return SUCCESS; | |
1833 | msleep(1000); | |
1834 | } | |
1835 | } | |
1836 | } | |
1837 | ||
1838 | if (atomic_read(&instance->fw_outstanding) || | |
1839 | (kill_adapter_flag == 2)) { | |
39a98554 | 1840 | printk(KERN_NOTICE "megaraid_sas: pending cmds after reset\n"); |
e3bbff9f SP |
1841 | /* |
1842 | * Send signal to FW to stop processing any pending cmds. | |
1843 | * The controller will be taken offline by the OS now. | |
1844 | */ | |
0c79e681 YB |
1845 | if ((instance->pdev->device == |
1846 | PCI_DEVICE_ID_LSI_SAS0073SKINNY) || | |
1847 | (instance->pdev->device == | |
1848 | PCI_DEVICE_ID_LSI_SAS0071SKINNY)) { | |
1849 | writel(MFI_STOP_ADP, | |
9c915a8c | 1850 | &instance->reg_set->doorbell); |
0c79e681 YB |
1851 | } else { |
1852 | writel(MFI_STOP_ADP, | |
e3bbff9f | 1853 | &instance->reg_set->inbound_doorbell); |
0c79e681 | 1854 | } |
658dcedb | 1855 | megasas_dump_pending_frames(instance); |
39a98554 | 1856 | spin_lock_irqsave(&instance->hba_lock, flags); |
1857 | instance->adprecovery = MEGASAS_HW_CRITICAL_ERROR; | |
1858 | spin_unlock_irqrestore(&instance->hba_lock, flags); | |
c4a3e0a5 BS |
1859 | return FAILED; |
1860 | } | |
1861 | ||
39a98554 | 1862 | printk(KERN_NOTICE "megaraid_sas: no pending cmds after reset\n"); |
1863 | ||
c4a3e0a5 BS |
1864 | return SUCCESS; |
1865 | } | |
1866 | ||
1867 | /** | |
1868 | * megasas_generic_reset - Generic reset routine | |
1869 | * @scmd: Mid-layer SCSI command | |
1870 | * | |
1871 | * This routine implements a generic reset handler for device, bus and host | |
1872 | * reset requests. Device, bus and host specific reset handlers can use this | |
1873 | * function after they do their specific tasks. | |
1874 | */ | |
1875 | static int megasas_generic_reset(struct scsi_cmnd *scmd) | |
1876 | { | |
1877 | int ret_val; | |
1878 | struct megasas_instance *instance; | |
1879 | ||
1880 | instance = (struct megasas_instance *)scmd->device->host->hostdata; | |
1881 | ||
05e9ebbe SP |
1882 | scmd_printk(KERN_NOTICE, scmd, "megasas: RESET -%ld cmd=%x retries=%x\n", |
1883 | scmd->serial_number, scmd->cmnd[0], scmd->retries); | |
c4a3e0a5 | 1884 | |
39a98554 | 1885 | if (instance->adprecovery == MEGASAS_HW_CRITICAL_ERROR) { |
c4a3e0a5 BS |
1886 | printk(KERN_ERR "megasas: cannot recover from previous reset " |
1887 | "failures\n"); | |
1888 | return FAILED; | |
1889 | } | |
1890 | ||
c4a3e0a5 | 1891 | ret_val = megasas_wait_for_outstanding(instance); |
c4a3e0a5 BS |
1892 | if (ret_val == SUCCESS) |
1893 | printk(KERN_NOTICE "megasas: reset successful \n"); | |
1894 | else | |
1895 | printk(KERN_ERR "megasas: failed to do reset\n"); | |
1896 | ||
c4a3e0a5 BS |
1897 | return ret_val; |
1898 | } | |
1899 | ||
05e9ebbe SP |
1900 | /** |
1901 | * megasas_reset_timer - quiesce the adapter if required | |
1902 | * @scmd: scsi cmnd | |
1903 | * | |
1904 | * Sets the FW busy flag and reduces the host->can_queue if the | |
1905 | * cmd has not been completed within the timeout period. | |
1906 | */ | |
1907 | static enum | |
242f9dcb | 1908 | blk_eh_timer_return megasas_reset_timer(struct scsi_cmnd *scmd) |
05e9ebbe SP |
1909 | { |
1910 | struct megasas_cmd *cmd = (struct megasas_cmd *)scmd->SCp.ptr; | |
1911 | struct megasas_instance *instance; | |
1912 | unsigned long flags; | |
1913 | ||
1914 | if (time_after(jiffies, scmd->jiffies_at_alloc + | |
1915 | (MEGASAS_DEFAULT_CMD_TIMEOUT * 2) * HZ)) { | |
242f9dcb | 1916 | return BLK_EH_NOT_HANDLED; |
05e9ebbe SP |
1917 | } |
1918 | ||
1919 | instance = cmd->instance; | |
1920 | if (!(instance->flag & MEGASAS_FW_BUSY)) { | |
1921 | /* FW is busy, throttle IO */ | |
1922 | spin_lock_irqsave(instance->host->host_lock, flags); | |
1923 | ||
1924 | instance->host->can_queue = 16; | |
1925 | instance->last_time = jiffies; | |
1926 | instance->flag |= MEGASAS_FW_BUSY; | |
1927 | ||
1928 | spin_unlock_irqrestore(instance->host->host_lock, flags); | |
1929 | } | |
242f9dcb | 1930 | return BLK_EH_RESET_TIMER; |
05e9ebbe SP |
1931 | } |
1932 | ||
c4a3e0a5 BS |
1933 | /** |
1934 | * megasas_reset_device - Device reset handler entry point | |
1935 | */ | |
1936 | static int megasas_reset_device(struct scsi_cmnd *scmd) | |
1937 | { | |
1938 | int ret; | |
1939 | ||
1940 | /* | |
1941 | * First wait for all commands to complete | |
1942 | */ | |
1943 | ret = megasas_generic_reset(scmd); | |
1944 | ||
1945 | return ret; | |
1946 | } | |
1947 | ||
1948 | /** | |
1949 | * megasas_reset_bus_host - Bus & host reset handler entry point | |
1950 | */ | |
1951 | static int megasas_reset_bus_host(struct scsi_cmnd *scmd) | |
1952 | { | |
1953 | int ret; | |
9c915a8c | 1954 | struct megasas_instance *instance; |
1955 | instance = (struct megasas_instance *)scmd->device->host->hostdata; | |
c4a3e0a5 BS |
1956 | |
1957 | /* | |
80682fa9 | 1958 | * First wait for all commands to complete |
c4a3e0a5 | 1959 | */ |
9c915a8c | 1960 | if (instance->pdev->device == PCI_DEVICE_ID_LSI_FUSION) |
1961 | ret = megasas_reset_fusion(scmd->device->host); | |
1962 | else | |
1963 | ret = megasas_generic_reset(scmd); | |
c4a3e0a5 BS |
1964 | |
1965 | return ret; | |
1966 | } | |
1967 | ||
cf62a0a5 SP |
1968 | /** |
1969 | * megasas_bios_param - Returns disk geometry for a disk | |
1970 | * @sdev: device handle | |
1971 | * @bdev: block device | |
1972 | * @capacity: drive capacity | |
1973 | * @geom: geometry parameters | |
1974 | */ | |
1975 | static int | |
1976 | megasas_bios_param(struct scsi_device *sdev, struct block_device *bdev, | |
1977 | sector_t capacity, int geom[]) | |
1978 | { | |
1979 | int heads; | |
1980 | int sectors; | |
1981 | sector_t cylinders; | |
1982 | unsigned long tmp; | |
1983 | /* Default heads (64) & sectors (32) */ | |
1984 | heads = 64; | |
1985 | sectors = 32; | |
1986 | ||
1987 | tmp = heads * sectors; | |
1988 | cylinders = capacity; | |
1989 | ||
1990 | sector_div(cylinders, tmp); | |
1991 | ||
1992 | /* | |
1993 | * Handle extended translation size for logical drives > 1Gb | |
1994 | */ | |
1995 | ||
1996 | if (capacity >= 0x200000) { | |
1997 | heads = 255; | |
1998 | sectors = 63; | |
1999 | tmp = heads*sectors; | |
2000 | cylinders = capacity; | |
2001 | sector_div(cylinders, tmp); | |
2002 | } | |
2003 | ||
2004 | geom[0] = heads; | |
2005 | geom[1] = sectors; | |
2006 | geom[2] = cylinders; | |
2007 | ||
2008 | return 0; | |
2009 | } | |
2010 | ||
7e8a75f4 YB |
2011 | static void megasas_aen_polling(struct work_struct *work); |
2012 | ||
c4a3e0a5 BS |
2013 | /** |
2014 | * megasas_service_aen - Processes an event notification | |
2015 | * @instance: Adapter soft state | |
2016 | * @cmd: AEN command completed by the ISR | |
2017 | * | |
2018 | * For AEN, driver sends a command down to FW that is held by the FW till an | |
2019 | * event occurs. When an event of interest occurs, FW completes the command | |
2020 | * that it was previously holding. | |
2021 | * | |
2022 | * This routines sends SIGIO signal to processes that have registered with the | |
2023 | * driver for AEN. | |
2024 | */ | |
2025 | static void | |
2026 | megasas_service_aen(struct megasas_instance *instance, struct megasas_cmd *cmd) | |
2027 | { | |
c3518837 | 2028 | unsigned long flags; |
c4a3e0a5 BS |
2029 | /* |
2030 | * Don't signal app if it is just an aborted previously registered aen | |
2031 | */ | |
c3518837 YB |
2032 | if ((!cmd->abort_aen) && (instance->unload == 0)) { |
2033 | spin_lock_irqsave(&poll_aen_lock, flags); | |
2034 | megasas_poll_wait_aen = 1; | |
2035 | spin_unlock_irqrestore(&poll_aen_lock, flags); | |
2036 | wake_up(&megasas_poll_wait); | |
c4a3e0a5 | 2037 | kill_fasync(&megasas_async_queue, SIGIO, POLL_IN); |
c3518837 | 2038 | } |
c4a3e0a5 BS |
2039 | else |
2040 | cmd->abort_aen = 0; | |
2041 | ||
2042 | instance->aen_cmd = NULL; | |
2043 | megasas_return_cmd(instance, cmd); | |
7e8a75f4 | 2044 | |
39a98554 | 2045 | if ((instance->unload == 0) && |
2046 | ((instance->issuepend_done == 1))) { | |
7e8a75f4 YB |
2047 | struct megasas_aen_event *ev; |
2048 | ev = kzalloc(sizeof(*ev), GFP_ATOMIC); | |
2049 | if (!ev) { | |
2050 | printk(KERN_ERR "megasas_service_aen: out of memory\n"); | |
2051 | } else { | |
2052 | ev->instance = instance; | |
2053 | instance->ev = ev; | |
2054 | INIT_WORK(&ev->hotplug_work, megasas_aen_polling); | |
2055 | schedule_delayed_work( | |
2056 | (struct delayed_work *)&ev->hotplug_work, 0); | |
2057 | } | |
2058 | } | |
c4a3e0a5 BS |
2059 | } |
2060 | ||
2061 | /* | |
2062 | * Scsi host template for megaraid_sas driver | |
2063 | */ | |
2064 | static struct scsi_host_template megasas_template = { | |
2065 | ||
2066 | .module = THIS_MODULE, | |
f28cd7cf | 2067 | .name = "LSI SAS based MegaRAID driver", |
c4a3e0a5 | 2068 | .proc_name = "megaraid_sas", |
147aab6a | 2069 | .slave_configure = megasas_slave_configure, |
044833b5 | 2070 | .slave_alloc = megasas_slave_alloc, |
c4a3e0a5 BS |
2071 | .queuecommand = megasas_queue_command, |
2072 | .eh_device_reset_handler = megasas_reset_device, | |
2073 | .eh_bus_reset_handler = megasas_reset_bus_host, | |
2074 | .eh_host_reset_handler = megasas_reset_bus_host, | |
05e9ebbe | 2075 | .eh_timed_out = megasas_reset_timer, |
cf62a0a5 | 2076 | .bios_param = megasas_bios_param, |
c4a3e0a5 BS |
2077 | .use_clustering = ENABLE_CLUSTERING, |
2078 | }; | |
2079 | ||
2080 | /** | |
2081 | * megasas_complete_int_cmd - Completes an internal command | |
2082 | * @instance: Adapter soft state | |
2083 | * @cmd: Command to be completed | |
2084 | * | |
2085 | * The megasas_issue_blocked_cmd() function waits for a command to complete | |
2086 | * after it issues a command. This function wakes up that waiting routine by | |
2087 | * calling wake_up() on the wait queue. | |
2088 | */ | |
2089 | static void | |
2090 | megasas_complete_int_cmd(struct megasas_instance *instance, | |
2091 | struct megasas_cmd *cmd) | |
2092 | { | |
2093 | cmd->cmd_status = cmd->frame->io.cmd_status; | |
2094 | ||
2095 | if (cmd->cmd_status == ENODATA) { | |
2096 | cmd->cmd_status = 0; | |
2097 | } | |
2098 | wake_up(&instance->int_cmd_wait_q); | |
2099 | } | |
2100 | ||
2101 | /** | |
2102 | * megasas_complete_abort - Completes aborting a command | |
2103 | * @instance: Adapter soft state | |
2104 | * @cmd: Cmd that was issued to abort another cmd | |
2105 | * | |
0d49016b | 2106 | * The megasas_issue_blocked_abort_cmd() function waits on abort_cmd_wait_q |
2107 | * after it issues an abort on a previously issued command. This function | |
c4a3e0a5 BS |
2108 | * wakes up all functions waiting on the same wait queue. |
2109 | */ | |
2110 | static void | |
2111 | megasas_complete_abort(struct megasas_instance *instance, | |
2112 | struct megasas_cmd *cmd) | |
2113 | { | |
2114 | if (cmd->sync_cmd) { | |
2115 | cmd->sync_cmd = 0; | |
2116 | cmd->cmd_status = 0; | |
2117 | wake_up(&instance->abort_cmd_wait_q); | |
2118 | } | |
2119 | ||
2120 | return; | |
2121 | } | |
2122 | ||
c4a3e0a5 BS |
2123 | /** |
2124 | * megasas_complete_cmd - Completes a command | |
2125 | * @instance: Adapter soft state | |
2126 | * @cmd: Command to be completed | |
0d49016b | 2127 | * @alt_status: If non-zero, use this value as status to |
c4a3e0a5 BS |
2128 | * SCSI mid-layer instead of the value returned |
2129 | * by the FW. This should be used if caller wants | |
2130 | * an alternate status (as in the case of aborted | |
2131 | * commands) | |
2132 | */ | |
9c915a8c | 2133 | void |
c4a3e0a5 BS |
2134 | megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd, |
2135 | u8 alt_status) | |
2136 | { | |
2137 | int exception = 0; | |
2138 | struct megasas_header *hdr = &cmd->frame->hdr; | |
c3518837 | 2139 | unsigned long flags; |
9c915a8c | 2140 | struct fusion_context *fusion = instance->ctrl_context; |
c4a3e0a5 | 2141 | |
39a98554 | 2142 | /* flag for the retry reset */ |
2143 | cmd->retry_for_fw_reset = 0; | |
2144 | ||
05e9ebbe SP |
2145 | if (cmd->scmd) |
2146 | cmd->scmd->SCp.ptr = NULL; | |
c4a3e0a5 BS |
2147 | |
2148 | switch (hdr->cmd) { | |
2149 | ||
2150 | case MFI_CMD_PD_SCSI_IO: | |
2151 | case MFI_CMD_LD_SCSI_IO: | |
2152 | ||
2153 | /* | |
2154 | * MFI_CMD_PD_SCSI_IO and MFI_CMD_LD_SCSI_IO could have been | |
2155 | * issued either through an IO path or an IOCTL path. If it | |
2156 | * was via IOCTL, we will send it to internal completion. | |
2157 | */ | |
2158 | if (cmd->sync_cmd) { | |
2159 | cmd->sync_cmd = 0; | |
2160 | megasas_complete_int_cmd(instance, cmd); | |
2161 | break; | |
2162 | } | |
2163 | ||
c4a3e0a5 BS |
2164 | case MFI_CMD_LD_READ: |
2165 | case MFI_CMD_LD_WRITE: | |
2166 | ||
2167 | if (alt_status) { | |
2168 | cmd->scmd->result = alt_status << 16; | |
2169 | exception = 1; | |
2170 | } | |
2171 | ||
2172 | if (exception) { | |
2173 | ||
e4a082c7 | 2174 | atomic_dec(&instance->fw_outstanding); |
c4a3e0a5 | 2175 | |
155d98f0 | 2176 | scsi_dma_unmap(cmd->scmd); |
c4a3e0a5 BS |
2177 | cmd->scmd->scsi_done(cmd->scmd); |
2178 | megasas_return_cmd(instance, cmd); | |
2179 | ||
2180 | break; | |
2181 | } | |
2182 | ||
2183 | switch (hdr->cmd_status) { | |
2184 | ||
2185 | case MFI_STAT_OK: | |
2186 | cmd->scmd->result = DID_OK << 16; | |
2187 | break; | |
2188 | ||
2189 | case MFI_STAT_SCSI_IO_FAILED: | |
2190 | case MFI_STAT_LD_INIT_IN_PROGRESS: | |
2191 | cmd->scmd->result = | |
2192 | (DID_ERROR << 16) | hdr->scsi_status; | |
2193 | break; | |
2194 | ||
2195 | case MFI_STAT_SCSI_DONE_WITH_ERROR: | |
2196 | ||
2197 | cmd->scmd->result = (DID_OK << 16) | hdr->scsi_status; | |
2198 | ||
2199 | if (hdr->scsi_status == SAM_STAT_CHECK_CONDITION) { | |
2200 | memset(cmd->scmd->sense_buffer, 0, | |
2201 | SCSI_SENSE_BUFFERSIZE); | |
2202 | memcpy(cmd->scmd->sense_buffer, cmd->sense, | |
2203 | hdr->sense_len); | |
2204 | ||
2205 | cmd->scmd->result |= DRIVER_SENSE << 24; | |
2206 | } | |
2207 | ||
2208 | break; | |
2209 | ||
2210 | case MFI_STAT_LD_OFFLINE: | |
2211 | case MFI_STAT_DEVICE_NOT_FOUND: | |
2212 | cmd->scmd->result = DID_BAD_TARGET << 16; | |
2213 | break; | |
2214 | ||
2215 | default: | |
2216 | printk(KERN_DEBUG "megasas: MFI FW status %#x\n", | |
2217 | hdr->cmd_status); | |
2218 | cmd->scmd->result = DID_ERROR << 16; | |
2219 | break; | |
2220 | } | |
2221 | ||
e4a082c7 | 2222 | atomic_dec(&instance->fw_outstanding); |
c4a3e0a5 | 2223 | |
155d98f0 | 2224 | scsi_dma_unmap(cmd->scmd); |
c4a3e0a5 BS |
2225 | cmd->scmd->scsi_done(cmd->scmd); |
2226 | megasas_return_cmd(instance, cmd); | |
2227 | ||
2228 | break; | |
2229 | ||
2230 | case MFI_CMD_SMP: | |
2231 | case MFI_CMD_STP: | |
2232 | case MFI_CMD_DCMD: | |
9c915a8c | 2233 | /* Check for LD map update */ |
2234 | if ((cmd->frame->dcmd.opcode == MR_DCMD_LD_MAP_GET_INFO) && | |
2235 | (cmd->frame->dcmd.mbox.b[1] == 1)) { | |
2236 | spin_lock_irqsave(instance->host->host_lock, flags); | |
2237 | if (cmd->frame->hdr.cmd_status != 0) { | |
2238 | if (cmd->frame->hdr.cmd_status != | |
2239 | MFI_STAT_NOT_FOUND) | |
2240 | printk(KERN_WARNING "megasas: map sync" | |
2241 | "failed, status = 0x%x.\n", | |
2242 | cmd->frame->hdr.cmd_status); | |
2243 | else { | |
2244 | megasas_return_cmd(instance, cmd); | |
2245 | spin_unlock_irqrestore( | |
2246 | instance->host->host_lock, | |
2247 | flags); | |
2248 | break; | |
2249 | } | |
2250 | } else | |
2251 | instance->map_id++; | |
2252 | megasas_return_cmd(instance, cmd); | |
2253 | if (MR_ValidateMapInfo( | |
2254 | fusion->ld_map[(instance->map_id & 1)], | |
2255 | fusion->load_balance_info)) | |
2256 | fusion->fast_path_io = 1; | |
2257 | else | |
2258 | fusion->fast_path_io = 0; | |
2259 | megasas_sync_map_info(instance); | |
2260 | spin_unlock_irqrestore(instance->host->host_lock, | |
2261 | flags); | |
2262 | break; | |
2263 | } | |
c3518837 YB |
2264 | if (cmd->frame->dcmd.opcode == MR_DCMD_CTRL_EVENT_GET_INFO || |
2265 | cmd->frame->dcmd.opcode == MR_DCMD_CTRL_EVENT_GET) { | |
2266 | spin_lock_irqsave(&poll_aen_lock, flags); | |
2267 | megasas_poll_wait_aen = 0; | |
2268 | spin_unlock_irqrestore(&poll_aen_lock, flags); | |
2269 | } | |
c4a3e0a5 BS |
2270 | |
2271 | /* | |
2272 | * See if got an event notification | |
2273 | */ | |
2274 | if (cmd->frame->dcmd.opcode == MR_DCMD_CTRL_EVENT_WAIT) | |
2275 | megasas_service_aen(instance, cmd); | |
2276 | else | |
2277 | megasas_complete_int_cmd(instance, cmd); | |
2278 | ||
2279 | break; | |
2280 | ||
2281 | case MFI_CMD_ABORT: | |
2282 | /* | |
2283 | * Cmd issued to abort another cmd returned | |
2284 | */ | |
2285 | megasas_complete_abort(instance, cmd); | |
2286 | break; | |
2287 | ||
2288 | default: | |
2289 | printk("megasas: Unknown command completed! [0x%X]\n", | |
2290 | hdr->cmd); | |
2291 | break; | |
2292 | } | |
2293 | } | |
2294 | ||
39a98554 | 2295 | /** |
2296 | * megasas_issue_pending_cmds_again - issue all pending cmds | |
2297 | * in FW again because of the fw reset | |
2298 | * @instance: Adapter soft state | |
2299 | */ | |
2300 | static inline void | |
2301 | megasas_issue_pending_cmds_again(struct megasas_instance *instance) | |
2302 | { | |
2303 | struct megasas_cmd *cmd; | |
2304 | struct list_head clist_local; | |
2305 | union megasas_evt_class_locale class_locale; | |
2306 | unsigned long flags; | |
2307 | u32 seq_num; | |
2308 | ||
2309 | INIT_LIST_HEAD(&clist_local); | |
2310 | spin_lock_irqsave(&instance->hba_lock, flags); | |
2311 | list_splice_init(&instance->internal_reset_pending_q, &clist_local); | |
2312 | spin_unlock_irqrestore(&instance->hba_lock, flags); | |
2313 | ||
2314 | while (!list_empty(&clist_local)) { | |
2315 | cmd = list_entry((&clist_local)->next, | |
2316 | struct megasas_cmd, list); | |
2317 | list_del_init(&cmd->list); | |
2318 | ||
2319 | if (cmd->sync_cmd || cmd->scmd) { | |
2320 | printk(KERN_NOTICE "megaraid_sas: command %p, %p:%d" | |
2321 | "detected to be pending while HBA reset.\n", | |
2322 | cmd, cmd->scmd, cmd->sync_cmd); | |
2323 | ||
2324 | cmd->retry_for_fw_reset++; | |
2325 | ||
2326 | if (cmd->retry_for_fw_reset == 3) { | |
2327 | printk(KERN_NOTICE "megaraid_sas: cmd %p, %p:%d" | |
2328 | "was tried multiple times during reset." | |
2329 | "Shutting down the HBA\n", | |
2330 | cmd, cmd->scmd, cmd->sync_cmd); | |
2331 | megaraid_sas_kill_hba(instance); | |
2332 | ||
2333 | instance->adprecovery = | |
2334 | MEGASAS_HW_CRITICAL_ERROR; | |
2335 | return; | |
2336 | } | |
2337 | } | |
2338 | ||
2339 | if (cmd->sync_cmd == 1) { | |
2340 | if (cmd->scmd) { | |
2341 | printk(KERN_NOTICE "megaraid_sas: unexpected" | |
2342 | "cmd attached to internal command!\n"); | |
2343 | } | |
2344 | printk(KERN_NOTICE "megasas: %p synchronous cmd" | |
2345 | "on the internal reset queue," | |
2346 | "issue it again.\n", cmd); | |
2347 | cmd->cmd_status = ENODATA; | |
2348 | instance->instancet->fire_cmd(instance, | |
2349 | cmd->frame_phys_addr , | |
2350 | 0, instance->reg_set); | |
2351 | } else if (cmd->scmd) { | |
2352 | printk(KERN_NOTICE "megasas: %p scsi cmd [%02x],%#lx" | |
2353 | "detected on the internal queue, issue again.\n", | |
2354 | cmd, cmd->scmd->cmnd[0], cmd->scmd->serial_number); | |
2355 | ||
2356 | atomic_inc(&instance->fw_outstanding); | |
2357 | instance->instancet->fire_cmd(instance, | |
2358 | cmd->frame_phys_addr, | |
2359 | cmd->frame_count-1, instance->reg_set); | |
2360 | } else { | |
2361 | printk(KERN_NOTICE "megasas: %p unexpected cmd on the" | |
2362 | "internal reset defer list while re-issue!!\n", | |
2363 | cmd); | |
2364 | } | |
2365 | } | |
2366 | ||
2367 | if (instance->aen_cmd) { | |
2368 | printk(KERN_NOTICE "megaraid_sas: aen_cmd in def process\n"); | |
2369 | megasas_return_cmd(instance, instance->aen_cmd); | |
2370 | ||
2371 | instance->aen_cmd = NULL; | |
2372 | } | |
2373 | ||
2374 | /* | |
2375 | * Initiate AEN (Asynchronous Event Notification) | |
2376 | */ | |
2377 | seq_num = instance->last_seq_num; | |
2378 | class_locale.members.reserved = 0; | |
2379 | class_locale.members.locale = MR_EVT_LOCALE_ALL; | |
2380 | class_locale.members.class = MR_EVT_CLASS_DEBUG; | |
2381 | ||
2382 | megasas_register_aen(instance, seq_num, class_locale.word); | |
2383 | } | |
2384 | ||
2385 | /** | |
2386 | * Move the internal reset pending commands to a deferred queue. | |
2387 | * | |
2388 | * We move the commands pending at internal reset time to a | |
2389 | * pending queue. This queue would be flushed after successful | |
2390 | * completion of the internal reset sequence. if the internal reset | |
2391 | * did not complete in time, the kernel reset handler would flush | |
2392 | * these commands. | |
2393 | **/ | |
2394 | static void | |
2395 | megasas_internal_reset_defer_cmds(struct megasas_instance *instance) | |
2396 | { | |
2397 | struct megasas_cmd *cmd; | |
2398 | int i; | |
2399 | u32 max_cmd = instance->max_fw_cmds; | |
2400 | u32 defer_index; | |
2401 | unsigned long flags; | |
2402 | ||
2403 | defer_index = 0; | |
2404 | spin_lock_irqsave(&instance->cmd_pool_lock, flags); | |
2405 | for (i = 0; i < max_cmd; i++) { | |
2406 | cmd = instance->cmd_list[i]; | |
2407 | if (cmd->sync_cmd == 1 || cmd->scmd) { | |
2408 | printk(KERN_NOTICE "megasas: moving cmd[%d]:%p:%d:%p" | |
2409 | "on the defer queue as internal\n", | |
2410 | defer_index, cmd, cmd->sync_cmd, cmd->scmd); | |
2411 | ||
2412 | if (!list_empty(&cmd->list)) { | |
2413 | printk(KERN_NOTICE "megaraid_sas: ERROR while" | |
2414 | " moving this cmd:%p, %d %p, it was" | |
2415 | "discovered on some list?\n", | |
2416 | cmd, cmd->sync_cmd, cmd->scmd); | |
2417 | ||
2418 | list_del_init(&cmd->list); | |
2419 | } | |
2420 | defer_index++; | |
2421 | list_add_tail(&cmd->list, | |
2422 | &instance->internal_reset_pending_q); | |
2423 | } | |
2424 | } | |
2425 | spin_unlock_irqrestore(&instance->cmd_pool_lock, flags); | |
2426 | } | |
2427 | ||
2428 | ||
2429 | static void | |
2430 | process_fw_state_change_wq(struct work_struct *work) | |
2431 | { | |
2432 | struct megasas_instance *instance = | |
2433 | container_of(work, struct megasas_instance, work_init); | |
2434 | u32 wait; | |
2435 | unsigned long flags; | |
2436 | ||
2437 | if (instance->adprecovery != MEGASAS_ADPRESET_SM_INFAULT) { | |
2438 | printk(KERN_NOTICE "megaraid_sas: error, recovery st %x \n", | |
2439 | instance->adprecovery); | |
2440 | return ; | |
2441 | } | |
2442 | ||
2443 | if (instance->adprecovery == MEGASAS_ADPRESET_SM_INFAULT) { | |
2444 | printk(KERN_NOTICE "megaraid_sas: FW detected to be in fault" | |
2445 | "state, restarting it...\n"); | |
2446 | ||
2447 | instance->instancet->disable_intr(instance->reg_set); | |
2448 | atomic_set(&instance->fw_outstanding, 0); | |
2449 | ||
2450 | atomic_set(&instance->fw_reset_no_pci_access, 1); | |
2451 | instance->instancet->adp_reset(instance, instance->reg_set); | |
2452 | atomic_set(&instance->fw_reset_no_pci_access, 0 ); | |
2453 | ||
2454 | printk(KERN_NOTICE "megaraid_sas: FW restarted successfully," | |
2455 | "initiating next stage...\n"); | |
2456 | ||
2457 | printk(KERN_NOTICE "megaraid_sas: HBA recovery state machine," | |
2458 | "state 2 starting...\n"); | |
2459 | ||
2460 | /*waitting for about 20 second before start the second init*/ | |
2461 | for (wait = 0; wait < 30; wait++) { | |
2462 | msleep(1000); | |
2463 | } | |
2464 | ||
2465 | if (megasas_transition_to_ready(instance)) { | |
2466 | printk(KERN_NOTICE "megaraid_sas:adapter not ready\n"); | |
2467 | ||
2468 | megaraid_sas_kill_hba(instance); | |
2469 | instance->adprecovery = MEGASAS_HW_CRITICAL_ERROR; | |
2470 | return ; | |
2471 | } | |
2472 | ||
2473 | if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS1064R) || | |
2474 | (instance->pdev->device == PCI_DEVICE_ID_DELL_PERC5) || | |
2475 | (instance->pdev->device == PCI_DEVICE_ID_LSI_VERDE_ZCR) | |
2476 | ) { | |
2477 | *instance->consumer = *instance->producer; | |
2478 | } else { | |
2479 | *instance->consumer = 0; | |
2480 | *instance->producer = 0; | |
2481 | } | |
2482 | ||
2483 | megasas_issue_init_mfi(instance); | |
2484 | ||
2485 | spin_lock_irqsave(&instance->hba_lock, flags); | |
2486 | instance->adprecovery = MEGASAS_HBA_OPERATIONAL; | |
2487 | spin_unlock_irqrestore(&instance->hba_lock, flags); | |
2488 | instance->instancet->enable_intr(instance->reg_set); | |
2489 | ||
2490 | megasas_issue_pending_cmds_again(instance); | |
2491 | instance->issuepend_done = 1; | |
2492 | } | |
2493 | return ; | |
2494 | } | |
2495 | ||
c4a3e0a5 BS |
2496 | /** |
2497 | * megasas_deplete_reply_queue - Processes all completed commands | |
2498 | * @instance: Adapter soft state | |
2499 | * @alt_status: Alternate status to be returned to | |
2500 | * SCSI mid-layer instead of the status | |
2501 | * returned by the FW | |
39a98554 | 2502 | * Note: this must be called with hba lock held |
c4a3e0a5 | 2503 | */ |
858119e1 | 2504 | static int |
39a98554 | 2505 | megasas_deplete_reply_queue(struct megasas_instance *instance, |
2506 | u8 alt_status) | |
c4a3e0a5 | 2507 | { |
39a98554 | 2508 | u32 mfiStatus; |
2509 | u32 fw_state; | |
2510 | ||
2511 | if ((mfiStatus = instance->instancet->check_reset(instance, | |
2512 | instance->reg_set)) == 1) { | |
2513 | return IRQ_HANDLED; | |
2514 | } | |
2515 | ||
2516 | if ((mfiStatus = instance->instancet->clear_intr( | |
2517 | instance->reg_set) | |
2518 | ) == 0) { | |
e1419191 | 2519 | /* Hardware may not set outbound_intr_status in MSI-X mode */ |
2520 | if (!instance->msi_flag) | |
2521 | return IRQ_NONE; | |
39a98554 | 2522 | } |
2523 | ||
2524 | instance->mfiStatus = mfiStatus; | |
2525 | ||
2526 | if ((mfiStatus & MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE)) { | |
2527 | fw_state = instance->instancet->read_fw_status_reg( | |
2528 | instance->reg_set) & MFI_STATE_MASK; | |
2529 | ||
2530 | if (fw_state != MFI_STATE_FAULT) { | |
2531 | printk(KERN_NOTICE "megaraid_sas: fw state:%x\n", | |
2532 | fw_state); | |
2533 | } | |
2534 | ||
2535 | if ((fw_state == MFI_STATE_FAULT) && | |
2536 | (instance->disableOnlineCtrlReset == 0)) { | |
2537 | printk(KERN_NOTICE "megaraid_sas: wait adp restart\n"); | |
2538 | ||
2539 | if ((instance->pdev->device == | |
2540 | PCI_DEVICE_ID_LSI_SAS1064R) || | |
2541 | (instance->pdev->device == | |
2542 | PCI_DEVICE_ID_DELL_PERC5) || | |
2543 | (instance->pdev->device == | |
2544 | PCI_DEVICE_ID_LSI_VERDE_ZCR)) { | |
2545 | ||
2546 | *instance->consumer = | |
2547 | MEGASAS_ADPRESET_INPROG_SIGN; | |
2548 | } | |
2549 | ||
2550 | ||
2551 | instance->instancet->disable_intr(instance->reg_set); | |
2552 | instance->adprecovery = MEGASAS_ADPRESET_SM_INFAULT; | |
2553 | instance->issuepend_done = 0; | |
2554 | ||
2555 | atomic_set(&instance->fw_outstanding, 0); | |
2556 | megasas_internal_reset_defer_cmds(instance); | |
2557 | ||
2558 | printk(KERN_NOTICE "megasas: fwState=%x, stage:%d\n", | |
2559 | fw_state, instance->adprecovery); | |
2560 | ||
2561 | schedule_work(&instance->work_init); | |
2562 | return IRQ_HANDLED; | |
2563 | ||
2564 | } else { | |
2565 | printk(KERN_NOTICE "megasas: fwstate:%x, dis_OCR=%x\n", | |
2566 | fw_state, instance->disableOnlineCtrlReset); | |
2567 | } | |
2568 | } | |
c4a3e0a5 | 2569 | |
5d018ad0 | 2570 | tasklet_schedule(&instance->isr_tasklet); |
c4a3e0a5 BS |
2571 | return IRQ_HANDLED; |
2572 | } | |
c4a3e0a5 BS |
2573 | /** |
2574 | * megasas_isr - isr entry point | |
2575 | */ | |
7d12e780 | 2576 | static irqreturn_t megasas_isr(int irq, void *devp) |
c4a3e0a5 | 2577 | { |
39a98554 | 2578 | struct megasas_instance *instance; |
2579 | unsigned long flags; | |
2580 | irqreturn_t rc; | |
2581 | ||
2582 | if (atomic_read( | |
2583 | &(((struct megasas_instance *)devp)->fw_reset_no_pci_access))) | |
2584 | return IRQ_HANDLED; | |
2585 | ||
2586 | instance = (struct megasas_instance *)devp; | |
2587 | ||
2588 | spin_lock_irqsave(&instance->hba_lock, flags); | |
2589 | rc = megasas_deplete_reply_queue(instance, DID_OK); | |
2590 | spin_unlock_irqrestore(&instance->hba_lock, flags); | |
2591 | ||
2592 | return rc; | |
c4a3e0a5 BS |
2593 | } |
2594 | ||
2595 | /** | |
2596 | * megasas_transition_to_ready - Move the FW to READY state | |
1341c939 | 2597 | * @instance: Adapter soft state |
c4a3e0a5 BS |
2598 | * |
2599 | * During the initialization, FW passes can potentially be in any one of | |
2600 | * several possible states. If the FW in operational, waiting-for-handshake | |
2601 | * states, driver must take steps to bring it to ready state. Otherwise, it | |
2602 | * has to wait for the ready state. | |
2603 | */ | |
9c915a8c | 2604 | int |
1341c939 | 2605 | megasas_transition_to_ready(struct megasas_instance* instance) |
c4a3e0a5 BS |
2606 | { |
2607 | int i; | |
2608 | u8 max_wait; | |
2609 | u32 fw_state; | |
2610 | u32 cur_state; | |
7218df69 | 2611 | u32 abs_state, curr_abs_state; |
c4a3e0a5 | 2612 | |
1341c939 | 2613 | fw_state = instance->instancet->read_fw_status_reg(instance->reg_set) & MFI_STATE_MASK; |
c4a3e0a5 | 2614 | |
e3bbff9f | 2615 | if (fw_state != MFI_STATE_READY) |
0d49016b | 2616 | printk(KERN_INFO "megasas: Waiting for FW to come to ready" |
2617 | " state\n"); | |
e3bbff9f | 2618 | |
c4a3e0a5 BS |
2619 | while (fw_state != MFI_STATE_READY) { |
2620 | ||
7218df69 YB |
2621 | abs_state = |
2622 | instance->instancet->read_fw_status_reg(instance->reg_set); | |
2623 | ||
c4a3e0a5 BS |
2624 | switch (fw_state) { |
2625 | ||
2626 | case MFI_STATE_FAULT: | |
2627 | ||
2628 | printk(KERN_DEBUG "megasas: FW in FAULT state!!\n"); | |
1ac515ef | 2629 | max_wait = MEGASAS_RESET_WAIT_TIME; |
2630 | cur_state = MFI_STATE_FAULT; | |
2631 | break; | |
c4a3e0a5 BS |
2632 | |
2633 | case MFI_STATE_WAIT_HANDSHAKE: | |
2634 | /* | |
2635 | * Set the CLR bit in inbound doorbell | |
2636 | */ | |
0c79e681 | 2637 | if ((instance->pdev->device == |
87911122 YB |
2638 | PCI_DEVICE_ID_LSI_SAS0073SKINNY) || |
2639 | (instance->pdev->device == | |
9c915a8c | 2640 | PCI_DEVICE_ID_LSI_SAS0071SKINNY) || |
2641 | (instance->pdev->device == | |
2642 | PCI_DEVICE_ID_LSI_FUSION)) { | |
87911122 YB |
2643 | writel( |
2644 | MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG, | |
9c915a8c | 2645 | &instance->reg_set->doorbell); |
87911122 YB |
2646 | } else { |
2647 | writel( | |
2648 | MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG, | |
2649 | &instance->reg_set->inbound_doorbell); | |
2650 | } | |
c4a3e0a5 | 2651 | |
7218df69 | 2652 | max_wait = MEGASAS_RESET_WAIT_TIME; |
c4a3e0a5 BS |
2653 | cur_state = MFI_STATE_WAIT_HANDSHAKE; |
2654 | break; | |
2655 | ||
e3bbff9f | 2656 | case MFI_STATE_BOOT_MESSAGE_PENDING: |
87911122 | 2657 | if ((instance->pdev->device == |
9c915a8c | 2658 | PCI_DEVICE_ID_LSI_SAS0073SKINNY) || |
2659 | (instance->pdev->device == | |
2660 | PCI_DEVICE_ID_LSI_SAS0071SKINNY) || | |
2661 | (instance->pdev->device == | |
2662 | PCI_DEVICE_ID_LSI_FUSION)) { | |
87911122 | 2663 | writel(MFI_INIT_HOTPLUG, |
9c915a8c | 2664 | &instance->reg_set->doorbell); |
87911122 YB |
2665 | } else |
2666 | writel(MFI_INIT_HOTPLUG, | |
2667 | &instance->reg_set->inbound_doorbell); | |
e3bbff9f | 2668 | |
7218df69 | 2669 | max_wait = MEGASAS_RESET_WAIT_TIME; |
e3bbff9f SP |
2670 | cur_state = MFI_STATE_BOOT_MESSAGE_PENDING; |
2671 | break; | |
2672 | ||
c4a3e0a5 BS |
2673 | case MFI_STATE_OPERATIONAL: |
2674 | /* | |
e3bbff9f | 2675 | * Bring it to READY state; assuming max wait 10 secs |
c4a3e0a5 | 2676 | */ |
b274cab7 | 2677 | instance->instancet->disable_intr(instance->reg_set); |
87911122 YB |
2678 | if ((instance->pdev->device == |
2679 | PCI_DEVICE_ID_LSI_SAS0073SKINNY) || | |
2680 | (instance->pdev->device == | |
9c915a8c | 2681 | PCI_DEVICE_ID_LSI_SAS0071SKINNY) || |
2682 | (instance->pdev->device | |
2683 | == PCI_DEVICE_ID_LSI_FUSION)) { | |
87911122 | 2684 | writel(MFI_RESET_FLAGS, |
9c915a8c | 2685 | &instance->reg_set->doorbell); |
2686 | if (instance->pdev->device == | |
2687 | PCI_DEVICE_ID_LSI_FUSION) { | |
2688 | for (i = 0; i < (10 * 1000); i += 20) { | |
2689 | if (readl( | |
2690 | &instance-> | |
2691 | reg_set-> | |
2692 | doorbell) & 1) | |
2693 | msleep(20); | |
2694 | else | |
2695 | break; | |
2696 | } | |
2697 | } | |
87911122 YB |
2698 | } else |
2699 | writel(MFI_RESET_FLAGS, | |
2700 | &instance->reg_set->inbound_doorbell); | |
c4a3e0a5 | 2701 | |
7218df69 | 2702 | max_wait = MEGASAS_RESET_WAIT_TIME; |
c4a3e0a5 BS |
2703 | cur_state = MFI_STATE_OPERATIONAL; |
2704 | break; | |
2705 | ||
2706 | case MFI_STATE_UNDEFINED: | |
2707 | /* | |
2708 | * This state should not last for more than 2 seconds | |
2709 | */ | |
7218df69 | 2710 | max_wait = MEGASAS_RESET_WAIT_TIME; |
c4a3e0a5 BS |
2711 | cur_state = MFI_STATE_UNDEFINED; |
2712 | break; | |
2713 | ||
2714 | case MFI_STATE_BB_INIT: | |
7218df69 | 2715 | max_wait = MEGASAS_RESET_WAIT_TIME; |
c4a3e0a5 BS |
2716 | cur_state = MFI_STATE_BB_INIT; |
2717 | break; | |
2718 | ||
2719 | case MFI_STATE_FW_INIT: | |
7218df69 | 2720 | max_wait = MEGASAS_RESET_WAIT_TIME; |
c4a3e0a5 BS |
2721 | cur_state = MFI_STATE_FW_INIT; |
2722 | break; | |
2723 | ||
2724 | case MFI_STATE_FW_INIT_2: | |
7218df69 | 2725 | max_wait = MEGASAS_RESET_WAIT_TIME; |
c4a3e0a5 BS |
2726 | cur_state = MFI_STATE_FW_INIT_2; |
2727 | break; | |
2728 | ||
2729 | case MFI_STATE_DEVICE_SCAN: | |
7218df69 | 2730 | max_wait = MEGASAS_RESET_WAIT_TIME; |
c4a3e0a5 BS |
2731 | cur_state = MFI_STATE_DEVICE_SCAN; |
2732 | break; | |
2733 | ||
2734 | case MFI_STATE_FLUSH_CACHE: | |
7218df69 | 2735 | max_wait = MEGASAS_RESET_WAIT_TIME; |
c4a3e0a5 BS |
2736 | cur_state = MFI_STATE_FLUSH_CACHE; |
2737 | break; | |
2738 | ||
2739 | default: | |
2740 | printk(KERN_DEBUG "megasas: Unknown state 0x%x\n", | |
2741 | fw_state); | |
2742 | return -ENODEV; | |
2743 | } | |
2744 | ||
2745 | /* | |
2746 | * The cur_state should not last for more than max_wait secs | |
2747 | */ | |
2748 | for (i = 0; i < (max_wait * 1000); i++) { | |
0d49016b | 2749 | fw_state = instance->instancet->read_fw_status_reg(instance->reg_set) & |
1341c939 | 2750 | MFI_STATE_MASK ; |
7218df69 YB |
2751 | curr_abs_state = |
2752 | instance->instancet->read_fw_status_reg(instance->reg_set); | |
c4a3e0a5 | 2753 | |
7218df69 | 2754 | if (abs_state == curr_abs_state) { |
c4a3e0a5 BS |
2755 | msleep(1); |
2756 | } else | |
2757 | break; | |
2758 | } | |
2759 | ||
2760 | /* | |
2761 | * Return error if fw_state hasn't changed after max_wait | |
2762 | */ | |
7218df69 | 2763 | if (curr_abs_state == abs_state) { |
c4a3e0a5 BS |
2764 | printk(KERN_DEBUG "FW state [%d] hasn't changed " |
2765 | "in %d secs\n", fw_state, max_wait); | |
2766 | return -ENODEV; | |
2767 | } | |
39a98554 | 2768 | } |
0d49016b | 2769 | printk(KERN_INFO "megasas: FW now in Ready state\n"); |
c4a3e0a5 BS |
2770 | |
2771 | return 0; | |
2772 | } | |
2773 | ||
2774 | /** | |
2775 | * megasas_teardown_frame_pool - Destroy the cmd frame DMA pool | |
2776 | * @instance: Adapter soft state | |
2777 | */ | |
2778 | static void megasas_teardown_frame_pool(struct megasas_instance *instance) | |
2779 | { | |
2780 | int i; | |
9c915a8c | 2781 | u32 max_cmd = instance->max_mfi_cmds; |
c4a3e0a5 BS |
2782 | struct megasas_cmd *cmd; |
2783 | ||
2784 | if (!instance->frame_dma_pool) | |
2785 | return; | |
2786 | ||
2787 | /* | |
2788 | * Return all frames to pool | |
2789 | */ | |
2790 | for (i = 0; i < max_cmd; i++) { | |
2791 | ||
2792 | cmd = instance->cmd_list[i]; | |
2793 | ||
2794 | if (cmd->frame) | |
2795 | pci_pool_free(instance->frame_dma_pool, cmd->frame, | |
2796 | cmd->frame_phys_addr); | |
2797 | ||
2798 | if (cmd->sense) | |
e3bbff9f | 2799 | pci_pool_free(instance->sense_dma_pool, cmd->sense, |
c4a3e0a5 BS |
2800 | cmd->sense_phys_addr); |
2801 | } | |
2802 | ||
2803 | /* | |
2804 | * Now destroy the pool itself | |
2805 | */ | |
2806 | pci_pool_destroy(instance->frame_dma_pool); | |
2807 | pci_pool_destroy(instance->sense_dma_pool); | |
2808 | ||
2809 | instance->frame_dma_pool = NULL; | |
2810 | instance->sense_dma_pool = NULL; | |
2811 | } | |
2812 | ||
2813 | /** | |
2814 | * megasas_create_frame_pool - Creates DMA pool for cmd frames | |
2815 | * @instance: Adapter soft state | |
2816 | * | |
2817 | * Each command packet has an embedded DMA memory buffer that is used for | |
2818 | * filling MFI frame and the SG list that immediately follows the frame. This | |
2819 | * function creates those DMA memory buffers for each command packet by using | |
2820 | * PCI pool facility. | |
2821 | */ | |
2822 | static int megasas_create_frame_pool(struct megasas_instance *instance) | |
2823 | { | |
2824 | int i; | |
2825 | u32 max_cmd; | |
2826 | u32 sge_sz; | |
2827 | u32 sgl_sz; | |
2828 | u32 total_sz; | |
2829 | u32 frame_count; | |
2830 | struct megasas_cmd *cmd; | |
2831 | ||
9c915a8c | 2832 | max_cmd = instance->max_mfi_cmds; |
c4a3e0a5 BS |
2833 | |
2834 | /* | |
2835 | * Size of our frame is 64 bytes for MFI frame, followed by max SG | |
2836 | * elements and finally SCSI_SENSE_BUFFERSIZE bytes for sense buffer | |
2837 | */ | |
2838 | sge_sz = (IS_DMA64) ? sizeof(struct megasas_sge64) : | |
2839 | sizeof(struct megasas_sge32); | |
2840 | ||
f4c9a131 YB |
2841 | if (instance->flag_ieee) { |
2842 | sge_sz = sizeof(struct megasas_sge_skinny); | |
2843 | } | |
2844 | ||
c4a3e0a5 BS |
2845 | /* |
2846 | * Calculated the number of 64byte frames required for SGL | |
2847 | */ | |
2848 | sgl_sz = sge_sz * instance->max_num_sge; | |
2849 | frame_count = (sgl_sz + MEGAMFI_FRAME_SIZE - 1) / MEGAMFI_FRAME_SIZE; | |
39a98554 | 2850 | frame_count = 15; |
c4a3e0a5 BS |
2851 | |
2852 | /* | |
2853 | * We need one extra frame for the MFI command | |
2854 | */ | |
2855 | frame_count++; | |
2856 | ||
2857 | total_sz = MEGAMFI_FRAME_SIZE * frame_count; | |
2858 | /* | |
2859 | * Use DMA pool facility provided by PCI layer | |
2860 | */ | |
2861 | instance->frame_dma_pool = pci_pool_create("megasas frame pool", | |
2862 | instance->pdev, total_sz, 64, | |
2863 | 0); | |
2864 | ||
2865 | if (!instance->frame_dma_pool) { | |
2866 | printk(KERN_DEBUG "megasas: failed to setup frame pool\n"); | |
2867 | return -ENOMEM; | |
2868 | } | |
2869 | ||
2870 | instance->sense_dma_pool = pci_pool_create("megasas sense pool", | |
2871 | instance->pdev, 128, 4, 0); | |
2872 | ||
2873 | if (!instance->sense_dma_pool) { | |
2874 | printk(KERN_DEBUG "megasas: failed to setup sense pool\n"); | |
2875 | ||
2876 | pci_pool_destroy(instance->frame_dma_pool); | |
2877 | instance->frame_dma_pool = NULL; | |
2878 | ||
2879 | return -ENOMEM; | |
2880 | } | |
2881 | ||
2882 | /* | |
2883 | * Allocate and attach a frame to each of the commands in cmd_list. | |
2884 | * By making cmd->index as the context instead of the &cmd, we can | |
2885 | * always use 32bit context regardless of the architecture | |
2886 | */ | |
2887 | for (i = 0; i < max_cmd; i++) { | |
2888 | ||
2889 | cmd = instance->cmd_list[i]; | |
2890 | ||
2891 | cmd->frame = pci_pool_alloc(instance->frame_dma_pool, | |
2892 | GFP_KERNEL, &cmd->frame_phys_addr); | |
2893 | ||
2894 | cmd->sense = pci_pool_alloc(instance->sense_dma_pool, | |
2895 | GFP_KERNEL, &cmd->sense_phys_addr); | |
2896 | ||
2897 | /* | |
2898 | * megasas_teardown_frame_pool() takes care of freeing | |
2899 | * whatever has been allocated | |
2900 | */ | |
2901 | if (!cmd->frame || !cmd->sense) { | |
2902 | printk(KERN_DEBUG "megasas: pci_pool_alloc failed \n"); | |
2903 | megasas_teardown_frame_pool(instance); | |
2904 | return -ENOMEM; | |
2905 | } | |
2906 | ||
707e09bd | 2907 | memset(cmd->frame, 0, total_sz); |
c4a3e0a5 | 2908 | cmd->frame->io.context = cmd->index; |
7e8a75f4 | 2909 | cmd->frame->io.pad_0 = 0; |
c4a3e0a5 BS |
2910 | } |
2911 | ||
2912 | return 0; | |
2913 | } | |
2914 | ||
2915 | /** | |
2916 | * megasas_free_cmds - Free all the cmds in the free cmd pool | |
2917 | * @instance: Adapter soft state | |
2918 | */ | |
9c915a8c | 2919 | void megasas_free_cmds(struct megasas_instance *instance) |
c4a3e0a5 BS |
2920 | { |
2921 | int i; | |
2922 | /* First free the MFI frame pool */ | |
2923 | megasas_teardown_frame_pool(instance); | |
2924 | ||
2925 | /* Free all the commands in the cmd_list */ | |
9c915a8c | 2926 | for (i = 0; i < instance->max_mfi_cmds; i++) |
2927 | ||
c4a3e0a5 BS |
2928 | kfree(instance->cmd_list[i]); |
2929 | ||
2930 | /* Free the cmd_list buffer itself */ | |
2931 | kfree(instance->cmd_list); | |
2932 | instance->cmd_list = NULL; | |
2933 | ||
2934 | INIT_LIST_HEAD(&instance->cmd_pool); | |
2935 | } | |
2936 | ||
2937 | /** | |
2938 | * megasas_alloc_cmds - Allocates the command packets | |
2939 | * @instance: Adapter soft state | |
2940 | * | |
2941 | * Each command that is issued to the FW, whether IO commands from the OS or | |
2942 | * internal commands like IOCTLs, are wrapped in local data structure called | |
2943 | * megasas_cmd. The frame embedded in this megasas_cmd is actually issued to | |
2944 | * the FW. | |
2945 | * | |
2946 | * Each frame has a 32-bit field called context (tag). This context is used | |
2947 | * to get back the megasas_cmd from the frame when a frame gets completed in | |
2948 | * the ISR. Typically the address of the megasas_cmd itself would be used as | |
2949 | * the context. But we wanted to keep the differences between 32 and 64 bit | |
2950 | * systems to the mininum. We always use 32 bit integers for the context. In | |
2951 | * this driver, the 32 bit values are the indices into an array cmd_list. | |
2952 | * This array is used only to look up the megasas_cmd given the context. The | |
2953 | * free commands themselves are maintained in a linked list called cmd_pool. | |
2954 | */ | |
9c915a8c | 2955 | int megasas_alloc_cmds(struct megasas_instance *instance) |
c4a3e0a5 BS |
2956 | { |
2957 | int i; | |
2958 | int j; | |
2959 | u32 max_cmd; | |
2960 | struct megasas_cmd *cmd; | |
2961 | ||
9c915a8c | 2962 | max_cmd = instance->max_mfi_cmds; |
c4a3e0a5 BS |
2963 | |
2964 | /* | |
2965 | * instance->cmd_list is an array of struct megasas_cmd pointers. | |
2966 | * Allocate the dynamic array first and then allocate individual | |
2967 | * commands. | |
2968 | */ | |
dd00cc48 | 2969 | instance->cmd_list = kcalloc(max_cmd, sizeof(struct megasas_cmd*), GFP_KERNEL); |
c4a3e0a5 BS |
2970 | |
2971 | if (!instance->cmd_list) { | |
2972 | printk(KERN_DEBUG "megasas: out of memory\n"); | |
2973 | return -ENOMEM; | |
2974 | } | |
2975 | ||
9c915a8c | 2976 | memset(instance->cmd_list, 0, sizeof(struct megasas_cmd *) *max_cmd); |
c4a3e0a5 BS |
2977 | |
2978 | for (i = 0; i < max_cmd; i++) { | |
2979 | instance->cmd_list[i] = kmalloc(sizeof(struct megasas_cmd), | |
2980 | GFP_KERNEL); | |
2981 | ||
2982 | if (!instance->cmd_list[i]) { | |
2983 | ||
2984 | for (j = 0; j < i; j++) | |
2985 | kfree(instance->cmd_list[j]); | |
2986 | ||
2987 | kfree(instance->cmd_list); | |
2988 | instance->cmd_list = NULL; | |
2989 | ||
2990 | return -ENOMEM; | |
2991 | } | |
2992 | } | |
2993 | ||
2994 | /* | |
2995 | * Add all the commands to command pool (instance->cmd_pool) | |
2996 | */ | |
2997 | for (i = 0; i < max_cmd; i++) { | |
2998 | cmd = instance->cmd_list[i]; | |
2999 | memset(cmd, 0, sizeof(struct megasas_cmd)); | |
3000 | cmd->index = i; | |
39a98554 | 3001 | cmd->scmd = NULL; |
c4a3e0a5 BS |
3002 | cmd->instance = instance; |
3003 | ||
3004 | list_add_tail(&cmd->list, &instance->cmd_pool); | |
3005 | } | |
3006 | ||
3007 | /* | |
3008 | * Create a frame pool and assign one frame to each cmd | |
3009 | */ | |
3010 | if (megasas_create_frame_pool(instance)) { | |
3011 | printk(KERN_DEBUG "megasas: Error creating frame DMA pool\n"); | |
3012 | megasas_free_cmds(instance); | |
3013 | } | |
3014 | ||
3015 | return 0; | |
3016 | } | |
3017 | ||
81e403ce YB |
3018 | /* |
3019 | * megasas_get_pd_list_info - Returns FW's pd_list structure | |
3020 | * @instance: Adapter soft state | |
3021 | * @pd_list: pd_list structure | |
3022 | * | |
3023 | * Issues an internal command (DCMD) to get the FW's controller PD | |
3024 | * list structure. This information is mainly used to find out SYSTEM | |
3025 | * supported by the FW. | |
3026 | */ | |
3027 | static int | |
3028 | megasas_get_pd_list(struct megasas_instance *instance) | |
3029 | { | |
3030 | int ret = 0, pd_index = 0; | |
3031 | struct megasas_cmd *cmd; | |
3032 | struct megasas_dcmd_frame *dcmd; | |
3033 | struct MR_PD_LIST *ci; | |
3034 | struct MR_PD_ADDRESS *pd_addr; | |
3035 | dma_addr_t ci_h = 0; | |
3036 | ||
3037 | cmd = megasas_get_cmd(instance); | |
3038 | ||
3039 | if (!cmd) { | |
3040 | printk(KERN_DEBUG "megasas (get_pd_list): Failed to get cmd\n"); | |
3041 | return -ENOMEM; | |
3042 | } | |
3043 | ||
3044 | dcmd = &cmd->frame->dcmd; | |
3045 | ||
3046 | ci = pci_alloc_consistent(instance->pdev, | |
3047 | MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST), &ci_h); | |
3048 | ||
3049 | if (!ci) { | |
3050 | printk(KERN_DEBUG "Failed to alloc mem for pd_list\n"); | |
3051 | megasas_return_cmd(instance, cmd); | |
3052 | return -ENOMEM; | |
3053 | } | |
3054 | ||
3055 | memset(ci, 0, sizeof(*ci)); | |
3056 | memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); | |
3057 | ||
3058 | dcmd->mbox.b[0] = MR_PD_QUERY_TYPE_EXPOSED_TO_HOST; | |
3059 | dcmd->mbox.b[1] = 0; | |
3060 | dcmd->cmd = MFI_CMD_DCMD; | |
3061 | dcmd->cmd_status = 0xFF; | |
3062 | dcmd->sge_count = 1; | |
3063 | dcmd->flags = MFI_FRAME_DIR_READ; | |
3064 | dcmd->timeout = 0; | |
780a3762 | 3065 | dcmd->pad_0 = 0; |
81e403ce YB |
3066 | dcmd->data_xfer_len = MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST); |
3067 | dcmd->opcode = MR_DCMD_PD_LIST_QUERY; | |
3068 | dcmd->sgl.sge32[0].phys_addr = ci_h; | |
3069 | dcmd->sgl.sge32[0].length = MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST); | |
3070 | ||
3071 | if (!megasas_issue_polled(instance, cmd)) { | |
3072 | ret = 0; | |
3073 | } else { | |
3074 | ret = -1; | |
3075 | } | |
3076 | ||
3077 | /* | |
3078 | * the following function will get the instance PD LIST. | |
3079 | */ | |
3080 | ||
3081 | pd_addr = ci->addr; | |
3082 | ||
3083 | if ( ret == 0 && | |
3084 | (ci->count < | |
3085 | (MEGASAS_MAX_PD_CHANNELS * MEGASAS_MAX_DEV_PER_CHANNEL))) { | |
3086 | ||
3087 | memset(instance->pd_list, 0, | |
3088 | MEGASAS_MAX_PD * sizeof(struct megasas_pd_list)); | |
3089 | ||
3090 | for (pd_index = 0; pd_index < ci->count; pd_index++) { | |
3091 | ||
3092 | instance->pd_list[pd_addr->deviceId].tid = | |
3093 | pd_addr->deviceId; | |
3094 | instance->pd_list[pd_addr->deviceId].driveType = | |
3095 | pd_addr->scsiDevType; | |
3096 | instance->pd_list[pd_addr->deviceId].driveState = | |
3097 | MR_PD_STATE_SYSTEM; | |
3098 | pd_addr++; | |
3099 | } | |
3100 | } | |
3101 | ||
3102 | pci_free_consistent(instance->pdev, | |
3103 | MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST), | |
3104 | ci, ci_h); | |
3105 | megasas_return_cmd(instance, cmd); | |
3106 | ||
3107 | return ret; | |
3108 | } | |
3109 | ||
bdc6fb8d YB |
3110 | /* |
3111 | * megasas_get_ld_list_info - Returns FW's ld_list structure | |
3112 | * @instance: Adapter soft state | |
3113 | * @ld_list: ld_list structure | |
3114 | * | |
3115 | * Issues an internal command (DCMD) to get the FW's controller PD | |
3116 | * list structure. This information is mainly used to find out SYSTEM | |
3117 | * supported by the FW. | |
3118 | */ | |
3119 | static int | |
3120 | megasas_get_ld_list(struct megasas_instance *instance) | |
3121 | { | |
3122 | int ret = 0, ld_index = 0, ids = 0; | |
3123 | struct megasas_cmd *cmd; | |
3124 | struct megasas_dcmd_frame *dcmd; | |
3125 | struct MR_LD_LIST *ci; | |
3126 | dma_addr_t ci_h = 0; | |
3127 | ||
3128 | cmd = megasas_get_cmd(instance); | |
3129 | ||
3130 | if (!cmd) { | |
3131 | printk(KERN_DEBUG "megasas_get_ld_list: Failed to get cmd\n"); | |
3132 | return -ENOMEM; | |
3133 | } | |
3134 | ||
3135 | dcmd = &cmd->frame->dcmd; | |
3136 | ||
3137 | ci = pci_alloc_consistent(instance->pdev, | |
3138 | sizeof(struct MR_LD_LIST), | |
3139 | &ci_h); | |
3140 | ||
3141 | if (!ci) { | |
3142 | printk(KERN_DEBUG "Failed to alloc mem in get_ld_list\n"); | |
3143 | megasas_return_cmd(instance, cmd); | |
3144 | return -ENOMEM; | |
3145 | } | |
3146 | ||
3147 | memset(ci, 0, sizeof(*ci)); | |
3148 | memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); | |
3149 | ||
3150 | dcmd->cmd = MFI_CMD_DCMD; | |
3151 | dcmd->cmd_status = 0xFF; | |
3152 | dcmd->sge_count = 1; | |
3153 | dcmd->flags = MFI_FRAME_DIR_READ; | |
3154 | dcmd->timeout = 0; | |
3155 | dcmd->data_xfer_len = sizeof(struct MR_LD_LIST); | |
3156 | dcmd->opcode = MR_DCMD_LD_GET_LIST; | |
3157 | dcmd->sgl.sge32[0].phys_addr = ci_h; | |
3158 | dcmd->sgl.sge32[0].length = sizeof(struct MR_LD_LIST); | |
3159 | dcmd->pad_0 = 0; | |
3160 | ||
3161 | if (!megasas_issue_polled(instance, cmd)) { | |
3162 | ret = 0; | |
3163 | } else { | |
3164 | ret = -1; | |
3165 | } | |
3166 | ||
3167 | /* the following function will get the instance PD LIST */ | |
3168 | ||
39a98554 | 3169 | if ((ret == 0) && (ci->ldCount <= MAX_LOGICAL_DRIVES)) { |
bdc6fb8d YB |
3170 | memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS); |
3171 | ||
3172 | for (ld_index = 0; ld_index < ci->ldCount; ld_index++) { | |
3173 | if (ci->ldList[ld_index].state != 0) { | |
3174 | ids = ci->ldList[ld_index].ref.targetId; | |
3175 | instance->ld_ids[ids] = | |
3176 | ci->ldList[ld_index].ref.targetId; | |
3177 | } | |
3178 | } | |
3179 | } | |
3180 | ||
3181 | pci_free_consistent(instance->pdev, | |
3182 | sizeof(struct MR_LD_LIST), | |
3183 | ci, | |
3184 | ci_h); | |
3185 | ||
3186 | megasas_return_cmd(instance, cmd); | |
3187 | return ret; | |
3188 | } | |
3189 | ||
c4a3e0a5 BS |
3190 | /** |
3191 | * megasas_get_controller_info - Returns FW's controller structure | |
3192 | * @instance: Adapter soft state | |
3193 | * @ctrl_info: Controller information structure | |
3194 | * | |
3195 | * Issues an internal command (DCMD) to get the FW's controller structure. | |
3196 | * This information is mainly used to find out the maximum IO transfer per | |
3197 | * command supported by the FW. | |
3198 | */ | |
3199 | static int | |
3200 | megasas_get_ctrl_info(struct megasas_instance *instance, | |
3201 | struct megasas_ctrl_info *ctrl_info) | |
3202 | { | |
3203 | int ret = 0; | |
3204 | struct megasas_cmd *cmd; | |
3205 | struct megasas_dcmd_frame *dcmd; | |
3206 | struct megasas_ctrl_info *ci; | |
3207 | dma_addr_t ci_h = 0; | |
3208 | ||
3209 | cmd = megasas_get_cmd(instance); | |
3210 | ||
3211 | if (!cmd) { | |
3212 | printk(KERN_DEBUG "megasas: Failed to get a free cmd\n"); | |
3213 | return -ENOMEM; | |
3214 | } | |
3215 | ||
3216 | dcmd = &cmd->frame->dcmd; | |
3217 | ||
3218 | ci = pci_alloc_consistent(instance->pdev, | |
3219 | sizeof(struct megasas_ctrl_info), &ci_h); | |
3220 | ||
3221 | if (!ci) { | |
3222 | printk(KERN_DEBUG "Failed to alloc mem for ctrl info\n"); | |
3223 | megasas_return_cmd(instance, cmd); | |
3224 | return -ENOMEM; | |
3225 | } | |
3226 | ||
3227 | memset(ci, 0, sizeof(*ci)); | |
3228 | memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); | |
3229 | ||
3230 | dcmd->cmd = MFI_CMD_DCMD; | |
3231 | dcmd->cmd_status = 0xFF; | |
3232 | dcmd->sge_count = 1; | |
3233 | dcmd->flags = MFI_FRAME_DIR_READ; | |
3234 | dcmd->timeout = 0; | |
780a3762 | 3235 | dcmd->pad_0 = 0; |
c4a3e0a5 BS |
3236 | dcmd->data_xfer_len = sizeof(struct megasas_ctrl_info); |
3237 | dcmd->opcode = MR_DCMD_CTRL_GET_INFO; | |
3238 | dcmd->sgl.sge32[0].phys_addr = ci_h; | |
3239 | dcmd->sgl.sge32[0].length = sizeof(struct megasas_ctrl_info); | |
3240 | ||
3241 | if (!megasas_issue_polled(instance, cmd)) { | |
3242 | ret = 0; | |
3243 | memcpy(ctrl_info, ci, sizeof(struct megasas_ctrl_info)); | |
3244 | } else { | |
3245 | ret = -1; | |
3246 | } | |
3247 | ||
3248 | pci_free_consistent(instance->pdev, sizeof(struct megasas_ctrl_info), | |
3249 | ci, ci_h); | |
3250 | ||
3251 | megasas_return_cmd(instance, cmd); | |
3252 | return ret; | |
3253 | } | |
3254 | ||
31ea7088 | 3255 | /** |
3256 | * megasas_issue_init_mfi - Initializes the FW | |
3257 | * @instance: Adapter soft state | |
3258 | * | |
3259 | * Issues the INIT MFI cmd | |
3260 | */ | |
3261 | static int | |
3262 | megasas_issue_init_mfi(struct megasas_instance *instance) | |
3263 | { | |
3264 | u32 context; | |
3265 | ||
3266 | struct megasas_cmd *cmd; | |
3267 | ||
3268 | struct megasas_init_frame *init_frame; | |
3269 | struct megasas_init_queue_info *initq_info; | |
3270 | dma_addr_t init_frame_h; | |
3271 | dma_addr_t initq_info_h; | |
3272 | ||
3273 | /* | |
3274 | * Prepare a init frame. Note the init frame points to queue info | |
3275 | * structure. Each frame has SGL allocated after first 64 bytes. For | |
3276 | * this frame - since we don't need any SGL - we use SGL's space as | |
3277 | * queue info structure | |
3278 | * | |
3279 | * We will not get a NULL command below. We just created the pool. | |
3280 | */ | |
3281 | cmd = megasas_get_cmd(instance); | |
3282 | ||
3283 | init_frame = (struct megasas_init_frame *)cmd->frame; | |
3284 | initq_info = (struct megasas_init_queue_info *) | |
3285 | ((unsigned long)init_frame + 64); | |
3286 | ||
3287 | init_frame_h = cmd->frame_phys_addr; | |
3288 | initq_info_h = init_frame_h + 64; | |
3289 | ||
3290 | context = init_frame->context; | |
3291 | memset(init_frame, 0, MEGAMFI_FRAME_SIZE); | |
3292 | memset(initq_info, 0, sizeof(struct megasas_init_queue_info)); | |
3293 | init_frame->context = context; | |
3294 | ||
3295 | initq_info->reply_queue_entries = instance->max_fw_cmds + 1; | |
3296 | initq_info->reply_queue_start_phys_addr_lo = instance->reply_queue_h; | |
3297 | ||
3298 | initq_info->producer_index_phys_addr_lo = instance->producer_h; | |
3299 | initq_info->consumer_index_phys_addr_lo = instance->consumer_h; | |
3300 | ||
3301 | init_frame->cmd = MFI_CMD_INIT; | |
3302 | init_frame->cmd_status = 0xFF; | |
3303 | init_frame->queue_info_new_phys_addr_lo = initq_info_h; | |
3304 | ||
3305 | init_frame->data_xfer_len = sizeof(struct megasas_init_queue_info); | |
3306 | ||
3307 | /* | |
3308 | * disable the intr before firing the init frame to FW | |
3309 | */ | |
3310 | instance->instancet->disable_intr(instance->reg_set); | |
3311 | ||
3312 | /* | |
3313 | * Issue the init frame in polled mode | |
3314 | */ | |
3315 | ||
3316 | if (megasas_issue_polled(instance, cmd)) { | |
3317 | printk(KERN_ERR "megasas: Failed to init firmware\n"); | |
3318 | megasas_return_cmd(instance, cmd); | |
3319 | goto fail_fw_init; | |
3320 | } | |
3321 | ||
3322 | megasas_return_cmd(instance, cmd); | |
3323 | ||
3324 | return 0; | |
3325 | ||
3326 | fail_fw_init: | |
3327 | return -EINVAL; | |
3328 | } | |
3329 | ||
ad84db2e | 3330 | /** |
3331 | * megasas_start_timer - Initializes a timer object | |
3332 | * @instance: Adapter soft state | |
3333 | * @timer: timer object to be initialized | |
3334 | * @fn: timer function | |
3335 | * @interval: time interval between timer function call | |
3336 | */ | |
3337 | static inline void | |
3338 | megasas_start_timer(struct megasas_instance *instance, | |
3339 | struct timer_list *timer, | |
3340 | void *fn, unsigned long interval) | |
3341 | { | |
3342 | init_timer(timer); | |
3343 | timer->expires = jiffies + interval; | |
3344 | timer->data = (unsigned long)instance; | |
3345 | timer->function = fn; | |
3346 | add_timer(timer); | |
3347 | } | |
3348 | ||
3349 | /** | |
3350 | * megasas_io_completion_timer - Timer fn | |
3351 | * @instance_addr: Address of adapter soft state | |
3352 | * | |
3353 | * Schedules tasklet for cmd completion | |
3354 | * if poll_mode_io is set | |
3355 | */ | |
3356 | static void | |
3357 | megasas_io_completion_timer(unsigned long instance_addr) | |
3358 | { | |
3359 | struct megasas_instance *instance = | |
3360 | (struct megasas_instance *)instance_addr; | |
3361 | ||
3362 | if (atomic_read(&instance->fw_outstanding)) | |
3363 | tasklet_schedule(&instance->isr_tasklet); | |
3364 | ||
3365 | /* Restart timer */ | |
3366 | if (poll_mode_io) | |
3367 | mod_timer(&instance->io_completion_timer, | |
3368 | jiffies + MEGASAS_COMPLETION_TIMER_INTERVAL); | |
3369 | } | |
3370 | ||
cd50ba8e | 3371 | static u32 |
3372 | megasas_init_adapter_mfi(struct megasas_instance *instance) | |
c4a3e0a5 | 3373 | { |
cd50ba8e | 3374 | struct megasas_register_set __iomem *reg_set; |
c4a3e0a5 BS |
3375 | u32 context_sz; |
3376 | u32 reply_q_sz; | |
c4a3e0a5 BS |
3377 | |
3378 | reg_set = instance->reg_set; | |
3379 | ||
c4a3e0a5 BS |
3380 | /* |
3381 | * Get various operational parameters from status register | |
3382 | */ | |
1341c939 | 3383 | instance->max_fw_cmds = instance->instancet->read_fw_status_reg(reg_set) & 0x00FFFF; |
e3bbff9f SP |
3384 | /* |
3385 | * Reduce the max supported cmds by 1. This is to ensure that the | |
3386 | * reply_q_sz (1 more than the max cmd that driver may send) | |
3387 | * does not exceed max cmds that the FW can support | |
3388 | */ | |
3389 | instance->max_fw_cmds = instance->max_fw_cmds-1; | |
9c915a8c | 3390 | instance->max_mfi_cmds = instance->max_fw_cmds; |
0d49016b | 3391 | instance->max_num_sge = (instance->instancet->read_fw_status_reg(reg_set) & 0xFF0000) >> |
1341c939 | 3392 | 0x10; |
c4a3e0a5 BS |
3393 | /* |
3394 | * Create a pool of commands | |
3395 | */ | |
3396 | if (megasas_alloc_cmds(instance)) | |
3397 | goto fail_alloc_cmds; | |
3398 | ||
3399 | /* | |
3400 | * Allocate memory for reply queue. Length of reply queue should | |
3401 | * be _one_ more than the maximum commands handled by the firmware. | |
3402 | * | |
3403 | * Note: When FW completes commands, it places corresponding contex | |
3404 | * values in this circular reply queue. This circular queue is a fairly | |
3405 | * typical producer-consumer queue. FW is the producer (of completed | |
3406 | * commands) and the driver is the consumer. | |
3407 | */ | |
3408 | context_sz = sizeof(u32); | |
3409 | reply_q_sz = context_sz * (instance->max_fw_cmds + 1); | |
3410 | ||
3411 | instance->reply_queue = pci_alloc_consistent(instance->pdev, | |
3412 | reply_q_sz, | |
3413 | &instance->reply_queue_h); | |
3414 | ||
3415 | if (!instance->reply_queue) { | |
3416 | printk(KERN_DEBUG "megasas: Out of DMA mem for reply queue\n"); | |
3417 | goto fail_reply_queue; | |
3418 | } | |
3419 | ||
31ea7088 | 3420 | if (megasas_issue_init_mfi(instance)) |
c4a3e0a5 | 3421 | goto fail_fw_init; |
c4a3e0a5 | 3422 | |
39a98554 | 3423 | instance->fw_support_ieee = 0; |
3424 | instance->fw_support_ieee = | |
3425 | (instance->instancet->read_fw_status_reg(reg_set) & | |
3426 | 0x04000000); | |
3427 | ||
3428 | printk(KERN_NOTICE "megasas_init_mfi: fw_support_ieee=%d", | |
3429 | instance->fw_support_ieee); | |
3430 | ||
3431 | if (instance->fw_support_ieee) | |
3432 | instance->flag_ieee = 1; | |
3433 | ||
cd50ba8e | 3434 | return 0; |
3435 | ||
3436 | fail_fw_init: | |
3437 | ||
3438 | pci_free_consistent(instance->pdev, reply_q_sz, | |
3439 | instance->reply_queue, instance->reply_queue_h); | |
3440 | fail_reply_queue: | |
3441 | megasas_free_cmds(instance); | |
3442 | ||
3443 | fail_alloc_cmds: | |
cd50ba8e | 3444 | return 1; |
3445 | } | |
3446 | ||
3447 | /** | |
3448 | * megasas_init_fw - Initializes the FW | |
3449 | * @instance: Adapter soft state | |
3450 | * | |
3451 | * This is the main function for initializing firmware | |
3452 | */ | |
3453 | ||
3454 | static int megasas_init_fw(struct megasas_instance *instance) | |
3455 | { | |
3456 | u32 max_sectors_1; | |
3457 | u32 max_sectors_2; | |
3458 | u32 tmp_sectors; | |
3459 | struct megasas_register_set __iomem *reg_set; | |
3460 | struct megasas_ctrl_info *ctrl_info; | |
3461 | unsigned long bar_list; | |
3462 | ||
3463 | /* Find first memory bar */ | |
3464 | bar_list = pci_select_bars(instance->pdev, IORESOURCE_MEM); | |
3465 | instance->bar = find_first_bit(&bar_list, sizeof(unsigned long)); | |
3466 | instance->base_addr = pci_resource_start(instance->pdev, instance->bar); | |
3467 | if (pci_request_selected_regions(instance->pdev, instance->bar, | |
3468 | "megasas: LSI")) { | |
3469 | printk(KERN_DEBUG "megasas: IO memory region busy!\n"); | |
3470 | return -EBUSY; | |
3471 | } | |
3472 | ||
3473 | instance->reg_set = ioremap_nocache(instance->base_addr, 8192); | |
3474 | ||
3475 | if (!instance->reg_set) { | |
3476 | printk(KERN_DEBUG "megasas: Failed to map IO mem\n"); | |
3477 | goto fail_ioremap; | |
3478 | } | |
3479 | ||
3480 | reg_set = instance->reg_set; | |
3481 | ||
3482 | switch (instance->pdev->device) { | |
9c915a8c | 3483 | case PCI_DEVICE_ID_LSI_FUSION: |
3484 | instance->instancet = &megasas_instance_template_fusion; | |
3485 | break; | |
cd50ba8e | 3486 | case PCI_DEVICE_ID_LSI_SAS1078R: |
3487 | case PCI_DEVICE_ID_LSI_SAS1078DE: | |
3488 | instance->instancet = &megasas_instance_template_ppc; | |
3489 | break; | |
3490 | case PCI_DEVICE_ID_LSI_SAS1078GEN2: | |
3491 | case PCI_DEVICE_ID_LSI_SAS0079GEN2: | |
3492 | instance->instancet = &megasas_instance_template_gen2; | |
3493 | break; | |
3494 | case PCI_DEVICE_ID_LSI_SAS0073SKINNY: | |
3495 | case PCI_DEVICE_ID_LSI_SAS0071SKINNY: | |
3496 | instance->instancet = &megasas_instance_template_skinny; | |
3497 | break; | |
3498 | case PCI_DEVICE_ID_LSI_SAS1064R: | |
3499 | case PCI_DEVICE_ID_DELL_PERC5: | |
3500 | default: | |
3501 | instance->instancet = &megasas_instance_template_xscale; | |
3502 | break; | |
3503 | } | |
3504 | ||
3505 | /* | |
3506 | * We expect the FW state to be READY | |
3507 | */ | |
3508 | if (megasas_transition_to_ready(instance)) | |
3509 | goto fail_ready_state; | |
3510 | ||
3511 | /* Get operational params, sge flags, send init cmd to controller */ | |
3512 | if (instance->instancet->init_adapter(instance)) | |
eb1b1237 | 3513 | goto fail_init_adapter; |
cd50ba8e | 3514 | |
3515 | printk(KERN_ERR "megasas: INIT adapter done\n"); | |
3516 | ||
39a98554 | 3517 | /** for passthrough |
3518 | * the following function will get the PD LIST. | |
3519 | */ | |
3520 | ||
81e403ce YB |
3521 | memset(instance->pd_list, 0 , |
3522 | (MEGASAS_MAX_PD * sizeof(struct megasas_pd_list))); | |
3523 | megasas_get_pd_list(instance); | |
3524 | ||
bdc6fb8d YB |
3525 | memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS); |
3526 | megasas_get_ld_list(instance); | |
3527 | ||
c4a3e0a5 BS |
3528 | ctrl_info = kmalloc(sizeof(struct megasas_ctrl_info), GFP_KERNEL); |
3529 | ||
3530 | /* | |
3531 | * Compute the max allowed sectors per IO: The controller info has two | |
3532 | * limits on max sectors. Driver should use the minimum of these two. | |
3533 | * | |
3534 | * 1 << stripe_sz_ops.min = max sectors per strip | |
3535 | * | |
3536 | * Note that older firmwares ( < FW ver 30) didn't report information | |
3537 | * to calculate max_sectors_1. So the number ended up as zero always. | |
3538 | */ | |
14faea9f | 3539 | tmp_sectors = 0; |
c4a3e0a5 BS |
3540 | if (ctrl_info && !megasas_get_ctrl_info(instance, ctrl_info)) { |
3541 | ||
3542 | max_sectors_1 = (1 << ctrl_info->stripe_sz_ops.min) * | |
3543 | ctrl_info->max_strips_per_io; | |
3544 | max_sectors_2 = ctrl_info->max_request_size; | |
3545 | ||
14faea9f | 3546 | tmp_sectors = min_t(u32, max_sectors_1 , max_sectors_2); |
39a98554 | 3547 | instance->disableOnlineCtrlReset = |
3548 | ctrl_info->properties.OnOffProperties.disableOnlineCtrlReset; | |
14faea9f | 3549 | } |
3550 | ||
3551 | instance->max_sectors_per_req = instance->max_num_sge * | |
3552 | PAGE_SIZE / 512; | |
3553 | if (tmp_sectors && (instance->max_sectors_per_req > tmp_sectors)) | |
3554 | instance->max_sectors_per_req = tmp_sectors; | |
c4a3e0a5 BS |
3555 | |
3556 | kfree(ctrl_info); | |
3557 | ||
5d018ad0 SP |
3558 | /* |
3559 | * Setup tasklet for cmd completion | |
3560 | */ | |
3561 | ||
f86c5424 | 3562 | tasklet_init(&instance->isr_tasklet, instance->instancet->tasklet, |
ad84db2e | 3563 | (unsigned long)instance); |
3564 | ||
3565 | /* Initialize the cmd completion timer */ | |
3566 | if (poll_mode_io) | |
3567 | megasas_start_timer(instance, &instance->io_completion_timer, | |
3568 | megasas_io_completion_timer, | |
3569 | MEGASAS_COMPLETION_TIMER_INTERVAL); | |
c4a3e0a5 BS |
3570 | return 0; |
3571 | ||
eb1b1237 | 3572 | fail_init_adapter: |
cd50ba8e | 3573 | fail_ready_state: |
c4a3e0a5 BS |
3574 | iounmap(instance->reg_set); |
3575 | ||
3576 | fail_ioremap: | |
b6d5d880 | 3577 | pci_release_selected_regions(instance->pdev, instance->bar); |
c4a3e0a5 BS |
3578 | |
3579 | return -EINVAL; | |
3580 | } | |
3581 | ||
3582 | /** | |
3583 | * megasas_release_mfi - Reverses the FW initialization | |
3584 | * @intance: Adapter soft state | |
3585 | */ | |
3586 | static void megasas_release_mfi(struct megasas_instance *instance) | |
3587 | { | |
9c915a8c | 3588 | u32 reply_q_sz = sizeof(u32) *(instance->max_mfi_cmds + 1); |
c4a3e0a5 | 3589 | |
9c915a8c | 3590 | if (instance->reply_queue) |
3591 | pci_free_consistent(instance->pdev, reply_q_sz, | |
c4a3e0a5 BS |
3592 | instance->reply_queue, instance->reply_queue_h); |
3593 | ||
3594 | megasas_free_cmds(instance); | |
3595 | ||
3596 | iounmap(instance->reg_set); | |
3597 | ||
b6d5d880 | 3598 | pci_release_selected_regions(instance->pdev, instance->bar); |
c4a3e0a5 BS |
3599 | } |
3600 | ||
3601 | /** | |
3602 | * megasas_get_seq_num - Gets latest event sequence numbers | |
3603 | * @instance: Adapter soft state | |
3604 | * @eli: FW event log sequence numbers information | |
3605 | * | |
3606 | * FW maintains a log of all events in a non-volatile area. Upper layers would | |
3607 | * usually find out the latest sequence number of the events, the seq number at | |
3608 | * the boot etc. They would "read" all the events below the latest seq number | |
3609 | * by issuing a direct fw cmd (DCMD). For the future events (beyond latest seq | |
3610 | * number), they would subsribe to AEN (asynchronous event notification) and | |
3611 | * wait for the events to happen. | |
3612 | */ | |
3613 | static int | |
3614 | megasas_get_seq_num(struct megasas_instance *instance, | |
3615 | struct megasas_evt_log_info *eli) | |
3616 | { | |
3617 | struct megasas_cmd *cmd; | |
3618 | struct megasas_dcmd_frame *dcmd; | |
3619 | struct megasas_evt_log_info *el_info; | |
3620 | dma_addr_t el_info_h = 0; | |
3621 | ||
3622 | cmd = megasas_get_cmd(instance); | |
3623 | ||
3624 | if (!cmd) { | |
3625 | return -ENOMEM; | |
3626 | } | |
3627 | ||
3628 | dcmd = &cmd->frame->dcmd; | |
3629 | el_info = pci_alloc_consistent(instance->pdev, | |
3630 | sizeof(struct megasas_evt_log_info), | |
3631 | &el_info_h); | |
3632 | ||
3633 | if (!el_info) { | |
3634 | megasas_return_cmd(instance, cmd); | |
3635 | return -ENOMEM; | |
3636 | } | |
3637 | ||
3638 | memset(el_info, 0, sizeof(*el_info)); | |
3639 | memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); | |
3640 | ||
3641 | dcmd->cmd = MFI_CMD_DCMD; | |
3642 | dcmd->cmd_status = 0x0; | |
3643 | dcmd->sge_count = 1; | |
3644 | dcmd->flags = MFI_FRAME_DIR_READ; | |
3645 | dcmd->timeout = 0; | |
780a3762 | 3646 | dcmd->pad_0 = 0; |
c4a3e0a5 BS |
3647 | dcmd->data_xfer_len = sizeof(struct megasas_evt_log_info); |
3648 | dcmd->opcode = MR_DCMD_CTRL_EVENT_GET_INFO; | |
3649 | dcmd->sgl.sge32[0].phys_addr = el_info_h; | |
3650 | dcmd->sgl.sge32[0].length = sizeof(struct megasas_evt_log_info); | |
3651 | ||
3652 | megasas_issue_blocked_cmd(instance, cmd); | |
3653 | ||
3654 | /* | |
3655 | * Copy the data back into callers buffer | |
3656 | */ | |
3657 | memcpy(eli, el_info, sizeof(struct megasas_evt_log_info)); | |
3658 | ||
3659 | pci_free_consistent(instance->pdev, sizeof(struct megasas_evt_log_info), | |
3660 | el_info, el_info_h); | |
3661 | ||
3662 | megasas_return_cmd(instance, cmd); | |
3663 | ||
3664 | return 0; | |
3665 | } | |
3666 | ||
3667 | /** | |
3668 | * megasas_register_aen - Registers for asynchronous event notification | |
3669 | * @instance: Adapter soft state | |
3670 | * @seq_num: The starting sequence number | |
3671 | * @class_locale: Class of the event | |
3672 | * | |
3673 | * This function subscribes for AEN for events beyond the @seq_num. It requests | |
3674 | * to be notified if and only if the event is of type @class_locale | |
3675 | */ | |
3676 | static int | |
3677 | megasas_register_aen(struct megasas_instance *instance, u32 seq_num, | |
3678 | u32 class_locale_word) | |
3679 | { | |
3680 | int ret_val; | |
3681 | struct megasas_cmd *cmd; | |
3682 | struct megasas_dcmd_frame *dcmd; | |
3683 | union megasas_evt_class_locale curr_aen; | |
3684 | union megasas_evt_class_locale prev_aen; | |
3685 | ||
3686 | /* | |
3687 | * If there an AEN pending already (aen_cmd), check if the | |
3688 | * class_locale of that pending AEN is inclusive of the new | |
3689 | * AEN request we currently have. If it is, then we don't have | |
3690 | * to do anything. In other words, whichever events the current | |
3691 | * AEN request is subscribing to, have already been subscribed | |
3692 | * to. | |
3693 | * | |
3694 | * If the old_cmd is _not_ inclusive, then we have to abort | |
3695 | * that command, form a class_locale that is superset of both | |
3696 | * old and current and re-issue to the FW | |
3697 | */ | |
3698 | ||
3699 | curr_aen.word = class_locale_word; | |
3700 | ||
3701 | if (instance->aen_cmd) { | |
3702 | ||
3703 | prev_aen.word = instance->aen_cmd->frame->dcmd.mbox.w[1]; | |
3704 | ||
3705 | /* | |
3706 | * A class whose enum value is smaller is inclusive of all | |
3707 | * higher values. If a PROGRESS (= -1) was previously | |
3708 | * registered, then a new registration requests for higher | |
3709 | * classes need not be sent to FW. They are automatically | |
3710 | * included. | |
3711 | * | |
3712 | * Locale numbers don't have such hierarchy. They are bitmap | |
3713 | * values | |
3714 | */ | |
3715 | if ((prev_aen.members.class <= curr_aen.members.class) && | |
3716 | !((prev_aen.members.locale & curr_aen.members.locale) ^ | |
3717 | curr_aen.members.locale)) { | |
3718 | /* | |
3719 | * Previously issued event registration includes | |
3720 | * current request. Nothing to do. | |
3721 | */ | |
3722 | return 0; | |
3723 | } else { | |
3724 | curr_aen.members.locale |= prev_aen.members.locale; | |
3725 | ||
3726 | if (prev_aen.members.class < curr_aen.members.class) | |
3727 | curr_aen.members.class = prev_aen.members.class; | |
3728 | ||
3729 | instance->aen_cmd->abort_aen = 1; | |
3730 | ret_val = megasas_issue_blocked_abort_cmd(instance, | |
3731 | instance-> | |
3732 | aen_cmd); | |
3733 | ||
3734 | if (ret_val) { | |
3735 | printk(KERN_DEBUG "megasas: Failed to abort " | |
3736 | "previous AEN command\n"); | |
3737 | return ret_val; | |
3738 | } | |
3739 | } | |
3740 | } | |
3741 | ||
3742 | cmd = megasas_get_cmd(instance); | |
3743 | ||
3744 | if (!cmd) | |
3745 | return -ENOMEM; | |
3746 | ||
3747 | dcmd = &cmd->frame->dcmd; | |
3748 | ||
3749 | memset(instance->evt_detail, 0, sizeof(struct megasas_evt_detail)); | |
3750 | ||
3751 | /* | |
3752 | * Prepare DCMD for aen registration | |
3753 | */ | |
3754 | memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); | |
3755 | ||
3756 | dcmd->cmd = MFI_CMD_DCMD; | |
3757 | dcmd->cmd_status = 0x0; | |
3758 | dcmd->sge_count = 1; | |
3759 | dcmd->flags = MFI_FRAME_DIR_READ; | |
3760 | dcmd->timeout = 0; | |
780a3762 | 3761 | dcmd->pad_0 = 0; |
39a98554 | 3762 | instance->last_seq_num = seq_num; |
c4a3e0a5 BS |
3763 | dcmd->data_xfer_len = sizeof(struct megasas_evt_detail); |
3764 | dcmd->opcode = MR_DCMD_CTRL_EVENT_WAIT; | |
3765 | dcmd->mbox.w[0] = seq_num; | |
3766 | dcmd->mbox.w[1] = curr_aen.word; | |
3767 | dcmd->sgl.sge32[0].phys_addr = (u32) instance->evt_detail_h; | |
3768 | dcmd->sgl.sge32[0].length = sizeof(struct megasas_evt_detail); | |
3769 | ||
f4c9a131 YB |
3770 | if (instance->aen_cmd != NULL) { |
3771 | megasas_return_cmd(instance, cmd); | |
3772 | return 0; | |
3773 | } | |
3774 | ||
c4a3e0a5 BS |
3775 | /* |
3776 | * Store reference to the cmd used to register for AEN. When an | |
3777 | * application wants us to register for AEN, we have to abort this | |
3778 | * cmd and re-register with a new EVENT LOCALE supplied by that app | |
3779 | */ | |
3780 | instance->aen_cmd = cmd; | |
3781 | ||
3782 | /* | |
3783 | * Issue the aen registration frame | |
3784 | */ | |
9c915a8c | 3785 | instance->instancet->issue_dcmd(instance, cmd); |
c4a3e0a5 BS |
3786 | |
3787 | return 0; | |
3788 | } | |
3789 | ||
3790 | /** | |
3791 | * megasas_start_aen - Subscribes to AEN during driver load time | |
3792 | * @instance: Adapter soft state | |
3793 | */ | |
3794 | static int megasas_start_aen(struct megasas_instance *instance) | |
3795 | { | |
3796 | struct megasas_evt_log_info eli; | |
3797 | union megasas_evt_class_locale class_locale; | |
3798 | ||
3799 | /* | |
3800 | * Get the latest sequence number from FW | |
3801 | */ | |
3802 | memset(&eli, 0, sizeof(eli)); | |
3803 | ||
3804 | if (megasas_get_seq_num(instance, &eli)) | |
3805 | return -1; | |
3806 | ||
3807 | /* | |
3808 | * Register AEN with FW for latest sequence number plus 1 | |
3809 | */ | |
3810 | class_locale.members.reserved = 0; | |
3811 | class_locale.members.locale = MR_EVT_LOCALE_ALL; | |
3812 | class_locale.members.class = MR_EVT_CLASS_DEBUG; | |
3813 | ||
3814 | return megasas_register_aen(instance, eli.newest_seq_num + 1, | |
3815 | class_locale.word); | |
3816 | } | |
3817 | ||
3818 | /** | |
3819 | * megasas_io_attach - Attaches this driver to SCSI mid-layer | |
3820 | * @instance: Adapter soft state | |
3821 | */ | |
3822 | static int megasas_io_attach(struct megasas_instance *instance) | |
3823 | { | |
3824 | struct Scsi_Host *host = instance->host; | |
3825 | ||
3826 | /* | |
3827 | * Export parameters required by SCSI mid-layer | |
3828 | */ | |
3829 | host->irq = instance->pdev->irq; | |
3830 | host->unique_id = instance->unique_id; | |
7bebf5c7 YB |
3831 | if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) || |
3832 | (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY)) { | |
3833 | host->can_queue = | |
3834 | instance->max_fw_cmds - MEGASAS_SKINNY_INT_CMDS; | |
3835 | } else | |
3836 | host->can_queue = | |
3837 | instance->max_fw_cmds - MEGASAS_INT_CMDS; | |
c4a3e0a5 BS |
3838 | host->this_id = instance->init_id; |
3839 | host->sg_tablesize = instance->max_num_sge; | |
42a8d2b3 | 3840 | |
3841 | if (instance->fw_support_ieee) | |
3842 | instance->max_sectors_per_req = MEGASAS_MAX_SECTORS_IEEE; | |
3843 | ||
1fd10685 YB |
3844 | /* |
3845 | * Check if the module parameter value for max_sectors can be used | |
3846 | */ | |
3847 | if (max_sectors && max_sectors < instance->max_sectors_per_req) | |
3848 | instance->max_sectors_per_req = max_sectors; | |
3849 | else { | |
3850 | if (max_sectors) { | |
3851 | if (((instance->pdev->device == | |
3852 | PCI_DEVICE_ID_LSI_SAS1078GEN2) || | |
3853 | (instance->pdev->device == | |
3854 | PCI_DEVICE_ID_LSI_SAS0079GEN2)) && | |
3855 | (max_sectors <= MEGASAS_MAX_SECTORS)) { | |
3856 | instance->max_sectors_per_req = max_sectors; | |
3857 | } else { | |
3858 | printk(KERN_INFO "megasas: max_sectors should be > 0" | |
3859 | "and <= %d (or < 1MB for GEN2 controller)\n", | |
3860 | instance->max_sectors_per_req); | |
3861 | } | |
3862 | } | |
3863 | } | |
3864 | ||
c4a3e0a5 | 3865 | host->max_sectors = instance->max_sectors_per_req; |
9c915a8c | 3866 | host->cmd_per_lun = MEGASAS_DEFAULT_CMD_PER_LUN; |
c4a3e0a5 BS |
3867 | host->max_channel = MEGASAS_MAX_CHANNELS - 1; |
3868 | host->max_id = MEGASAS_MAX_DEV_PER_CHANNEL; | |
3869 | host->max_lun = MEGASAS_MAX_LUN; | |
122da302 | 3870 | host->max_cmd_len = 16; |
c4a3e0a5 | 3871 | |
9c915a8c | 3872 | /* Fusion only supports host reset */ |
3873 | if (instance->pdev->device == PCI_DEVICE_ID_LSI_FUSION) { | |
3874 | host->hostt->eh_device_reset_handler = NULL; | |
3875 | host->hostt->eh_bus_reset_handler = NULL; | |
3876 | } | |
3877 | ||
c4a3e0a5 BS |
3878 | /* |
3879 | * Notify the mid-layer about the new controller | |
3880 | */ | |
3881 | if (scsi_add_host(host, &instance->pdev->dev)) { | |
3882 | printk(KERN_DEBUG "megasas: scsi_add_host failed\n"); | |
3883 | return -ENODEV; | |
3884 | } | |
3885 | ||
3886 | /* | |
3887 | * Trigger SCSI to scan our drives | |
3888 | */ | |
3889 | scsi_scan_host(host); | |
3890 | return 0; | |
3891 | } | |
3892 | ||
31ea7088 | 3893 | static int |
3894 | megasas_set_dma_mask(struct pci_dev *pdev) | |
3895 | { | |
3896 | /* | |
3897 | * All our contollers are capable of performing 64-bit DMA | |
3898 | */ | |
3899 | if (IS_DMA64) { | |
6a35528a | 3900 | if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0) { |
31ea7088 | 3901 | |
284901a9 | 3902 | if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0) |
31ea7088 | 3903 | goto fail_set_dma_mask; |
3904 | } | |
3905 | } else { | |
284901a9 | 3906 | if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0) |
31ea7088 | 3907 | goto fail_set_dma_mask; |
3908 | } | |
3909 | return 0; | |
3910 | ||
3911 | fail_set_dma_mask: | |
3912 | return 1; | |
3913 | } | |
3914 | ||
c4a3e0a5 BS |
3915 | /** |
3916 | * megasas_probe_one - PCI hotplug entry point | |
3917 | * @pdev: PCI device structure | |
0d49016b | 3918 | * @id: PCI ids of supported hotplugged adapter |
c4a3e0a5 BS |
3919 | */ |
3920 | static int __devinit | |
3921 | megasas_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) | |
3922 | { | |
66192dfe | 3923 | int rval, pos; |
c4a3e0a5 BS |
3924 | struct Scsi_Host *host; |
3925 | struct megasas_instance *instance; | |
66192dfe | 3926 | u16 control = 0; |
3927 | ||
3928 | /* Reset MSI-X in the kdump kernel */ | |
3929 | if (reset_devices) { | |
3930 | pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX); | |
3931 | if (pos) { | |
3932 | pci_read_config_word(pdev, msi_control_reg(pos), | |
3933 | &control); | |
3934 | if (control & PCI_MSIX_FLAGS_ENABLE) { | |
3935 | dev_info(&pdev->dev, "resetting MSI-X\n"); | |
3936 | pci_write_config_word(pdev, | |
3937 | msi_control_reg(pos), | |
3938 | control & | |
3939 | ~PCI_MSIX_FLAGS_ENABLE); | |
3940 | } | |
3941 | } | |
3942 | } | |
c4a3e0a5 BS |
3943 | |
3944 | /* | |
3945 | * Announce PCI information | |
3946 | */ | |
3947 | printk(KERN_INFO "megasas: %#4.04x:%#4.04x:%#4.04x:%#4.04x: ", | |
3948 | pdev->vendor, pdev->device, pdev->subsystem_vendor, | |
3949 | pdev->subsystem_device); | |
3950 | ||
3951 | printk("bus %d:slot %d:func %d\n", | |
3952 | pdev->bus->number, PCI_SLOT(pdev->devfn), PCI_FUNC(pdev->devfn)); | |
3953 | ||
3954 | /* | |
3955 | * PCI prepping: enable device set bus mastering and dma mask | |
3956 | */ | |
aeab3fd7 | 3957 | rval = pci_enable_device_mem(pdev); |
c4a3e0a5 BS |
3958 | |
3959 | if (rval) { | |
3960 | return rval; | |
3961 | } | |
3962 | ||
3963 | pci_set_master(pdev); | |
3964 | ||
31ea7088 | 3965 | if (megasas_set_dma_mask(pdev)) |
3966 | goto fail_set_dma_mask; | |
c4a3e0a5 BS |
3967 | |
3968 | host = scsi_host_alloc(&megasas_template, | |
3969 | sizeof(struct megasas_instance)); | |
3970 | ||
3971 | if (!host) { | |
3972 | printk(KERN_DEBUG "megasas: scsi_host_alloc failed\n"); | |
3973 | goto fail_alloc_instance; | |
3974 | } | |
3975 | ||
3976 | instance = (struct megasas_instance *)host->hostdata; | |
3977 | memset(instance, 0, sizeof(*instance)); | |
39a98554 | 3978 | atomic_set( &instance->fw_reset_no_pci_access, 0 ); |
9c915a8c | 3979 | instance->pdev = pdev; |
c4a3e0a5 | 3980 | |
9c915a8c | 3981 | switch (instance->pdev->device) { |
3982 | case PCI_DEVICE_ID_LSI_FUSION: | |
3983 | { | |
3984 | struct fusion_context *fusion; | |
3985 | ||
3986 | instance->ctrl_context = | |
3987 | kzalloc(sizeof(struct fusion_context), GFP_KERNEL); | |
3988 | if (!instance->ctrl_context) { | |
3989 | printk(KERN_DEBUG "megasas: Failed to allocate " | |
3990 | "memory for Fusion context info\n"); | |
3991 | goto fail_alloc_dma_buf; | |
3992 | } | |
3993 | fusion = instance->ctrl_context; | |
3994 | INIT_LIST_HEAD(&fusion->cmd_pool); | |
3995 | spin_lock_init(&fusion->cmd_pool_lock); | |
3996 | } | |
3997 | break; | |
3998 | default: /* For all other supported controllers */ | |
3999 | ||
4000 | instance->producer = | |
4001 | pci_alloc_consistent(pdev, sizeof(u32), | |
4002 | &instance->producer_h); | |
4003 | instance->consumer = | |
4004 | pci_alloc_consistent(pdev, sizeof(u32), | |
4005 | &instance->consumer_h); | |
4006 | ||
4007 | if (!instance->producer || !instance->consumer) { | |
4008 | printk(KERN_DEBUG "megasas: Failed to allocate" | |
4009 | "memory for producer, consumer\n"); | |
4010 | goto fail_alloc_dma_buf; | |
4011 | } | |
c4a3e0a5 | 4012 | |
9c915a8c | 4013 | *instance->producer = 0; |
4014 | *instance->consumer = 0; | |
4015 | break; | |
c4a3e0a5 BS |
4016 | } |
4017 | ||
c3518837 | 4018 | megasas_poll_wait_aen = 0; |
f4c9a131 | 4019 | instance->flag_ieee = 0; |
7e8a75f4 | 4020 | instance->ev = NULL; |
39a98554 | 4021 | instance->issuepend_done = 1; |
4022 | instance->adprecovery = MEGASAS_HBA_OPERATIONAL; | |
4023 | megasas_poll_wait_aen = 0; | |
c4a3e0a5 BS |
4024 | |
4025 | instance->evt_detail = pci_alloc_consistent(pdev, | |
4026 | sizeof(struct | |
4027 | megasas_evt_detail), | |
4028 | &instance->evt_detail_h); | |
4029 | ||
4030 | if (!instance->evt_detail) { | |
4031 | printk(KERN_DEBUG "megasas: Failed to allocate memory for " | |
4032 | "event detail structure\n"); | |
4033 | goto fail_alloc_dma_buf; | |
4034 | } | |
4035 | ||
4036 | /* | |
4037 | * Initialize locks and queues | |
4038 | */ | |
4039 | INIT_LIST_HEAD(&instance->cmd_pool); | |
39a98554 | 4040 | INIT_LIST_HEAD(&instance->internal_reset_pending_q); |
c4a3e0a5 | 4041 | |
e4a082c7 SP |
4042 | atomic_set(&instance->fw_outstanding,0); |
4043 | ||
c4a3e0a5 BS |
4044 | init_waitqueue_head(&instance->int_cmd_wait_q); |
4045 | init_waitqueue_head(&instance->abort_cmd_wait_q); | |
4046 | ||
4047 | spin_lock_init(&instance->cmd_pool_lock); | |
39a98554 | 4048 | spin_lock_init(&instance->hba_lock); |
7343eb65 | 4049 | spin_lock_init(&instance->completion_lock); |
c3518837 | 4050 | spin_lock_init(&poll_aen_lock); |
c4a3e0a5 | 4051 | |
e5a69e27 | 4052 | mutex_init(&instance->aen_mutex); |
9c915a8c | 4053 | mutex_init(&instance->reset_mutex); |
c4a3e0a5 BS |
4054 | |
4055 | /* | |
4056 | * Initialize PCI related and misc parameters | |
4057 | */ | |
c4a3e0a5 BS |
4058 | instance->host = host; |
4059 | instance->unique_id = pdev->bus->number << 8 | pdev->devfn; | |
4060 | instance->init_id = MEGASAS_DEFAULT_INIT_ID; | |
4061 | ||
7bebf5c7 YB |
4062 | if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) || |
4063 | (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY)) { | |
f4c9a131 | 4064 | instance->flag_ieee = 1; |
7bebf5c7 YB |
4065 | sema_init(&instance->ioctl_sem, MEGASAS_SKINNY_INT_CMDS); |
4066 | } else | |
4067 | sema_init(&instance->ioctl_sem, MEGASAS_INT_CMDS); | |
4068 | ||
658dcedb | 4069 | megasas_dbg_lvl = 0; |
05e9ebbe | 4070 | instance->flag = 0; |
0c79e681 | 4071 | instance->unload = 1; |
05e9ebbe | 4072 | instance->last_time = 0; |
39a98554 | 4073 | instance->disableOnlineCtrlReset = 1; |
4074 | ||
9c915a8c | 4075 | if (instance->pdev->device == PCI_DEVICE_ID_LSI_FUSION) |
4076 | INIT_WORK(&instance->work_init, megasas_fusion_ocr_wq); | |
4077 | else | |
4078 | INIT_WORK(&instance->work_init, process_fw_state_change_wq); | |
658dcedb | 4079 | |
80d9da98 | 4080 | /* Try to enable MSI-X */ |
4081 | if ((instance->pdev->device != PCI_DEVICE_ID_LSI_SAS1078R) && | |
4082 | (instance->pdev->device != PCI_DEVICE_ID_LSI_SAS1078DE) && | |
4083 | (instance->pdev->device != PCI_DEVICE_ID_LSI_VERDE_ZCR) && | |
4084 | !msix_disable && !pci_enable_msix(instance->pdev, | |
4085 | &instance->msixentry, 1)) | |
4086 | instance->msi_flag = 1; | |
4087 | ||
0a77066a | 4088 | /* |
4089 | * Initialize MFI Firmware | |
4090 | */ | |
4091 | if (megasas_init_fw(instance)) | |
4092 | goto fail_init_mfi; | |
4093 | ||
c4a3e0a5 BS |
4094 | /* |
4095 | * Register IRQ | |
4096 | */ | |
80d9da98 | 4097 | if (request_irq(instance->msi_flag ? instance->msixentry.vector : |
cd50ba8e | 4098 | pdev->irq, instance->instancet->service_isr, |
80d9da98 | 4099 | IRQF_SHARED, "megasas", instance)) { |
c4a3e0a5 BS |
4100 | printk(KERN_DEBUG "megasas: Failed to register IRQ\n"); |
4101 | goto fail_irq; | |
4102 | } | |
4103 | ||
1341c939 | 4104 | instance->instancet->enable_intr(instance->reg_set); |
c4a3e0a5 BS |
4105 | |
4106 | /* | |
4107 | * Store instance in PCI softstate | |
4108 | */ | |
4109 | pci_set_drvdata(pdev, instance); | |
4110 | ||
4111 | /* | |
4112 | * Add this controller to megasas_mgmt_info structure so that it | |
4113 | * can be exported to management applications | |
4114 | */ | |
4115 | megasas_mgmt_info.count++; | |
4116 | megasas_mgmt_info.instance[megasas_mgmt_info.max_index] = instance; | |
4117 | megasas_mgmt_info.max_index++; | |
4118 | ||
4119 | /* | |
4120 | * Initiate AEN (Asynchronous Event Notification) | |
4121 | */ | |
4122 | if (megasas_start_aen(instance)) { | |
4123 | printk(KERN_DEBUG "megasas: start aen failed\n"); | |
4124 | goto fail_start_aen; | |
4125 | } | |
4126 | ||
4127 | /* | |
4128 | * Register with SCSI mid-layer | |
4129 | */ | |
4130 | if (megasas_io_attach(instance)) | |
4131 | goto fail_io_attach; | |
4132 | ||
0c79e681 | 4133 | instance->unload = 0; |
c4a3e0a5 BS |
4134 | return 0; |
4135 | ||
4136 | fail_start_aen: | |
4137 | fail_io_attach: | |
4138 | megasas_mgmt_info.count--; | |
4139 | megasas_mgmt_info.instance[megasas_mgmt_info.max_index] = NULL; | |
4140 | megasas_mgmt_info.max_index--; | |
4141 | ||
4142 | pci_set_drvdata(pdev, NULL); | |
b274cab7 | 4143 | instance->instancet->disable_intr(instance->reg_set); |
80d9da98 | 4144 | free_irq(instance->msi_flag ? instance->msixentry.vector : |
4145 | instance->pdev->irq, instance); | |
eb1b1237 | 4146 | fail_irq: |
eb1b1237 | 4147 | if (instance->pdev->device == PCI_DEVICE_ID_LSI_FUSION) |
4148 | megasas_release_fusion(instance); | |
4149 | else | |
4150 | megasas_release_mfi(instance); | |
c4a3e0a5 | 4151 | fail_init_mfi: |
0a77066a | 4152 | if (instance->msi_flag) |
4153 | pci_disable_msix(instance->pdev); | |
c4a3e0a5 BS |
4154 | fail_alloc_dma_buf: |
4155 | if (instance->evt_detail) | |
4156 | pci_free_consistent(pdev, sizeof(struct megasas_evt_detail), | |
4157 | instance->evt_detail, | |
4158 | instance->evt_detail_h); | |
4159 | ||
eb1b1237 | 4160 | if (instance->producer) |
c4a3e0a5 BS |
4161 | pci_free_consistent(pdev, sizeof(u32), instance->producer, |
4162 | instance->producer_h); | |
4163 | if (instance->consumer) | |
4164 | pci_free_consistent(pdev, sizeof(u32), instance->consumer, | |
4165 | instance->consumer_h); | |
4166 | scsi_host_put(host); | |
4167 | ||
4168 | fail_alloc_instance: | |
4169 | fail_set_dma_mask: | |
4170 | pci_disable_device(pdev); | |
4171 | ||
4172 | return -ENODEV; | |
4173 | } | |
4174 | ||
4175 | /** | |
4176 | * megasas_flush_cache - Requests FW to flush all its caches | |
4177 | * @instance: Adapter soft state | |
4178 | */ | |
4179 | static void megasas_flush_cache(struct megasas_instance *instance) | |
4180 | { | |
4181 | struct megasas_cmd *cmd; | |
4182 | struct megasas_dcmd_frame *dcmd; | |
4183 | ||
39a98554 | 4184 | if (instance->adprecovery == MEGASAS_HW_CRITICAL_ERROR) |
4185 | return; | |
4186 | ||
c4a3e0a5 BS |
4187 | cmd = megasas_get_cmd(instance); |
4188 | ||
4189 | if (!cmd) | |
4190 | return; | |
4191 | ||
4192 | dcmd = &cmd->frame->dcmd; | |
4193 | ||
4194 | memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); | |
4195 | ||
4196 | dcmd->cmd = MFI_CMD_DCMD; | |
4197 | dcmd->cmd_status = 0x0; | |
4198 | dcmd->sge_count = 0; | |
4199 | dcmd->flags = MFI_FRAME_DIR_NONE; | |
4200 | dcmd->timeout = 0; | |
780a3762 | 4201 | dcmd->pad_0 = 0; |
c4a3e0a5 BS |
4202 | dcmd->data_xfer_len = 0; |
4203 | dcmd->opcode = MR_DCMD_CTRL_CACHE_FLUSH; | |
4204 | dcmd->mbox.b[0] = MR_FLUSH_CTRL_CACHE | MR_FLUSH_DISK_CACHE; | |
4205 | ||
4206 | megasas_issue_blocked_cmd(instance, cmd); | |
4207 | ||
4208 | megasas_return_cmd(instance, cmd); | |
4209 | ||
4210 | return; | |
4211 | } | |
4212 | ||
4213 | /** | |
4214 | * megasas_shutdown_controller - Instructs FW to shutdown the controller | |
4215 | * @instance: Adapter soft state | |
31ea7088 | 4216 | * @opcode: Shutdown/Hibernate |
c4a3e0a5 | 4217 | */ |
31ea7088 | 4218 | static void megasas_shutdown_controller(struct megasas_instance *instance, |
4219 | u32 opcode) | |
c4a3e0a5 BS |
4220 | { |
4221 | struct megasas_cmd *cmd; | |
4222 | struct megasas_dcmd_frame *dcmd; | |
4223 | ||
39a98554 | 4224 | if (instance->adprecovery == MEGASAS_HW_CRITICAL_ERROR) |
4225 | return; | |
4226 | ||
c4a3e0a5 BS |
4227 | cmd = megasas_get_cmd(instance); |
4228 | ||
4229 | if (!cmd) | |
4230 | return; | |
4231 | ||
4232 | if (instance->aen_cmd) | |
4233 | megasas_issue_blocked_abort_cmd(instance, instance->aen_cmd); | |
9c915a8c | 4234 | if (instance->map_update_cmd) |
4235 | megasas_issue_blocked_abort_cmd(instance, | |
4236 | instance->map_update_cmd); | |
c4a3e0a5 BS |
4237 | dcmd = &cmd->frame->dcmd; |
4238 | ||
4239 | memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); | |
4240 | ||
4241 | dcmd->cmd = MFI_CMD_DCMD; | |
4242 | dcmd->cmd_status = 0x0; | |
4243 | dcmd->sge_count = 0; | |
4244 | dcmd->flags = MFI_FRAME_DIR_NONE; | |
4245 | dcmd->timeout = 0; | |
780a3762 | 4246 | dcmd->pad_0 = 0; |
c4a3e0a5 | 4247 | dcmd->data_xfer_len = 0; |
31ea7088 | 4248 | dcmd->opcode = opcode; |
c4a3e0a5 BS |
4249 | |
4250 | megasas_issue_blocked_cmd(instance, cmd); | |
4251 | ||
4252 | megasas_return_cmd(instance, cmd); | |
4253 | ||
4254 | return; | |
4255 | } | |
4256 | ||
33139b21 | 4257 | #ifdef CONFIG_PM |
31ea7088 | 4258 | /** |
ad84db2e | 4259 | * megasas_suspend - driver suspend entry point |
4260 | * @pdev: PCI device structure | |
31ea7088 | 4261 | * @state: PCI power state to suspend routine |
4262 | */ | |
33139b21 | 4263 | static int |
31ea7088 | 4264 | megasas_suspend(struct pci_dev *pdev, pm_message_t state) |
4265 | { | |
4266 | struct Scsi_Host *host; | |
4267 | struct megasas_instance *instance; | |
4268 | ||
4269 | instance = pci_get_drvdata(pdev); | |
4270 | host = instance->host; | |
0c79e681 | 4271 | instance->unload = 1; |
31ea7088 | 4272 | |
ad84db2e | 4273 | if (poll_mode_io) |
4274 | del_timer_sync(&instance->io_completion_timer); | |
4275 | ||
31ea7088 | 4276 | megasas_flush_cache(instance); |
4277 | megasas_shutdown_controller(instance, MR_DCMD_HIBERNATE_SHUTDOWN); | |
7e8a75f4 YB |
4278 | |
4279 | /* cancel the delayed work if this work still in queue */ | |
4280 | if (instance->ev != NULL) { | |
4281 | struct megasas_aen_event *ev = instance->ev; | |
a684b8da | 4282 | cancel_delayed_work_sync( |
7e8a75f4 | 4283 | (struct delayed_work *)&ev->hotplug_work); |
7e8a75f4 YB |
4284 | instance->ev = NULL; |
4285 | } | |
4286 | ||
31ea7088 | 4287 | tasklet_kill(&instance->isr_tasklet); |
4288 | ||
4289 | pci_set_drvdata(instance->pdev, instance); | |
4290 | instance->instancet->disable_intr(instance->reg_set); | |
80d9da98 | 4291 | free_irq(instance->msi_flag ? instance->msixentry.vector : |
4292 | instance->pdev->irq, instance); | |
4293 | if (instance->msi_flag) | |
4294 | pci_disable_msix(instance->pdev); | |
31ea7088 | 4295 | |
4296 | pci_save_state(pdev); | |
4297 | pci_disable_device(pdev); | |
4298 | ||
4299 | pci_set_power_state(pdev, pci_choose_state(pdev, state)); | |
4300 | ||
4301 | return 0; | |
4302 | } | |
4303 | ||
4304 | /** | |
4305 | * megasas_resume- driver resume entry point | |
4306 | * @pdev: PCI device structure | |
4307 | */ | |
33139b21 | 4308 | static int |
31ea7088 | 4309 | megasas_resume(struct pci_dev *pdev) |
4310 | { | |
4311 | int rval; | |
4312 | struct Scsi_Host *host; | |
4313 | struct megasas_instance *instance; | |
4314 | ||
4315 | instance = pci_get_drvdata(pdev); | |
4316 | host = instance->host; | |
4317 | pci_set_power_state(pdev, PCI_D0); | |
4318 | pci_enable_wake(pdev, PCI_D0, 0); | |
4319 | pci_restore_state(pdev); | |
4320 | ||
4321 | /* | |
4322 | * PCI prepping: enable device set bus mastering and dma mask | |
4323 | */ | |
aeab3fd7 | 4324 | rval = pci_enable_device_mem(pdev); |
31ea7088 | 4325 | |
4326 | if (rval) { | |
4327 | printk(KERN_ERR "megasas: Enable device failed\n"); | |
4328 | return rval; | |
4329 | } | |
4330 | ||
4331 | pci_set_master(pdev); | |
4332 | ||
4333 | if (megasas_set_dma_mask(pdev)) | |
4334 | goto fail_set_dma_mask; | |
4335 | ||
0a77066a | 4336 | /* Now re-enable MSI-X */ |
4337 | if (instance->msi_flag) | |
4338 | pci_enable_msix(instance->pdev, &instance->msixentry, 1); | |
4339 | ||
31ea7088 | 4340 | /* |
4341 | * Initialize MFI Firmware | |
4342 | */ | |
4343 | ||
31ea7088 | 4344 | atomic_set(&instance->fw_outstanding, 0); |
4345 | ||
4346 | /* | |
4347 | * We expect the FW state to be READY | |
4348 | */ | |
4349 | if (megasas_transition_to_ready(instance)) | |
4350 | goto fail_ready_state; | |
4351 | ||
9c915a8c | 4352 | switch (instance->pdev->device) { |
4353 | case PCI_DEVICE_ID_LSI_FUSION: | |
4354 | { | |
4355 | megasas_reset_reply_desc(instance); | |
4356 | if (megasas_ioc_init_fusion(instance)) { | |
4357 | megasas_free_cmds(instance); | |
4358 | megasas_free_cmds_fusion(instance); | |
4359 | goto fail_init_mfi; | |
4360 | } | |
4361 | if (!megasas_get_map_info(instance)) | |
4362 | megasas_sync_map_info(instance); | |
4363 | } | |
4364 | break; | |
4365 | default: | |
4366 | *instance->producer = 0; | |
4367 | *instance->consumer = 0; | |
4368 | if (megasas_issue_init_mfi(instance)) | |
4369 | goto fail_init_mfi; | |
4370 | break; | |
4371 | } | |
31ea7088 | 4372 | |
9c915a8c | 4373 | tasklet_init(&instance->isr_tasklet, instance->instancet->tasklet, |
4374 | (unsigned long)instance); | |
31ea7088 | 4375 | |
4376 | /* | |
4377 | * Register IRQ | |
4378 | */ | |
80d9da98 | 4379 | if (request_irq(instance->msi_flag ? instance->msixentry.vector : |
cd50ba8e | 4380 | pdev->irq, instance->instancet->service_isr, |
80d9da98 | 4381 | IRQF_SHARED, "megasas", instance)) { |
31ea7088 | 4382 | printk(KERN_ERR "megasas: Failed to register IRQ\n"); |
4383 | goto fail_irq; | |
4384 | } | |
4385 | ||
4386 | instance->instancet->enable_intr(instance->reg_set); | |
4387 | ||
4388 | /* | |
4389 | * Initiate AEN (Asynchronous Event Notification) | |
4390 | */ | |
4391 | if (megasas_start_aen(instance)) | |
4392 | printk(KERN_ERR "megasas: Start AEN failed\n"); | |
4393 | ||
ad84db2e | 4394 | /* Initialize the cmd completion timer */ |
4395 | if (poll_mode_io) | |
4396 | megasas_start_timer(instance, &instance->io_completion_timer, | |
4397 | megasas_io_completion_timer, | |
4398 | MEGASAS_COMPLETION_TIMER_INTERVAL); | |
0c79e681 YB |
4399 | instance->unload = 0; |
4400 | ||
31ea7088 | 4401 | return 0; |
4402 | ||
4403 | fail_irq: | |
4404 | fail_init_mfi: | |
4405 | if (instance->evt_detail) | |
4406 | pci_free_consistent(pdev, sizeof(struct megasas_evt_detail), | |
4407 | instance->evt_detail, | |
4408 | instance->evt_detail_h); | |
4409 | ||
4410 | if (instance->producer) | |
4411 | pci_free_consistent(pdev, sizeof(u32), instance->producer, | |
4412 | instance->producer_h); | |
4413 | if (instance->consumer) | |
4414 | pci_free_consistent(pdev, sizeof(u32), instance->consumer, | |
4415 | instance->consumer_h); | |
4416 | scsi_host_put(host); | |
4417 | ||
4418 | fail_set_dma_mask: | |
4419 | fail_ready_state: | |
4420 | ||
4421 | pci_disable_device(pdev); | |
4422 | ||
4423 | return -ENODEV; | |
4424 | } | |
33139b21 JS |
4425 | #else |
4426 | #define megasas_suspend NULL | |
4427 | #define megasas_resume NULL | |
4428 | #endif | |
31ea7088 | 4429 | |
c4a3e0a5 BS |
4430 | /** |
4431 | * megasas_detach_one - PCI hot"un"plug entry point | |
4432 | * @pdev: PCI device structure | |
4433 | */ | |
33139b21 | 4434 | static void __devexit megasas_detach_one(struct pci_dev *pdev) |
c4a3e0a5 BS |
4435 | { |
4436 | int i; | |
4437 | struct Scsi_Host *host; | |
4438 | struct megasas_instance *instance; | |
9c915a8c | 4439 | struct fusion_context *fusion; |
c4a3e0a5 BS |
4440 | |
4441 | instance = pci_get_drvdata(pdev); | |
c3518837 | 4442 | instance->unload = 1; |
c4a3e0a5 | 4443 | host = instance->host; |
9c915a8c | 4444 | fusion = instance->ctrl_context; |
c4a3e0a5 | 4445 | |
ad84db2e | 4446 | if (poll_mode_io) |
4447 | del_timer_sync(&instance->io_completion_timer); | |
4448 | ||
c4a3e0a5 BS |
4449 | scsi_remove_host(instance->host); |
4450 | megasas_flush_cache(instance); | |
31ea7088 | 4451 | megasas_shutdown_controller(instance, MR_DCMD_CTRL_SHUTDOWN); |
7e8a75f4 YB |
4452 | |
4453 | /* cancel the delayed work if this work still in queue*/ | |
4454 | if (instance->ev != NULL) { | |
4455 | struct megasas_aen_event *ev = instance->ev; | |
a684b8da | 4456 | cancel_delayed_work_sync( |
7e8a75f4 | 4457 | (struct delayed_work *)&ev->hotplug_work); |
7e8a75f4 YB |
4458 | instance->ev = NULL; |
4459 | } | |
4460 | ||
5d018ad0 | 4461 | tasklet_kill(&instance->isr_tasklet); |
c4a3e0a5 BS |
4462 | |
4463 | /* | |
4464 | * Take the instance off the instance array. Note that we will not | |
4465 | * decrement the max_index. We let this array be sparse array | |
4466 | */ | |
4467 | for (i = 0; i < megasas_mgmt_info.max_index; i++) { | |
4468 | if (megasas_mgmt_info.instance[i] == instance) { | |
4469 | megasas_mgmt_info.count--; | |
4470 | megasas_mgmt_info.instance[i] = NULL; | |
4471 | ||
4472 | break; | |
4473 | } | |
4474 | } | |
4475 | ||
4476 | pci_set_drvdata(instance->pdev, NULL); | |
4477 | ||
b274cab7 | 4478 | instance->instancet->disable_intr(instance->reg_set); |
c4a3e0a5 | 4479 | |
80d9da98 | 4480 | free_irq(instance->msi_flag ? instance->msixentry.vector : |
4481 | instance->pdev->irq, instance); | |
4482 | if (instance->msi_flag) | |
4483 | pci_disable_msix(instance->pdev); | |
c4a3e0a5 | 4484 | |
9c915a8c | 4485 | switch (instance->pdev->device) { |
4486 | case PCI_DEVICE_ID_LSI_FUSION: | |
4487 | megasas_release_fusion(instance); | |
4488 | for (i = 0; i < 2 ; i++) | |
4489 | if (fusion->ld_map[i]) | |
4490 | dma_free_coherent(&instance->pdev->dev, | |
4491 | fusion->map_sz, | |
4492 | fusion->ld_map[i], | |
4493 | fusion-> | |
4494 | ld_map_phys[i]); | |
4495 | kfree(instance->ctrl_context); | |
4496 | break; | |
4497 | default: | |
4498 | megasas_release_mfi(instance); | |
4499 | pci_free_consistent(pdev, | |
4500 | sizeof(struct megasas_evt_detail), | |
4501 | instance->evt_detail, | |
4502 | instance->evt_detail_h); | |
4503 | pci_free_consistent(pdev, sizeof(u32), | |
4504 | instance->producer, | |
4505 | instance->producer_h); | |
4506 | pci_free_consistent(pdev, sizeof(u32), | |
4507 | instance->consumer, | |
4508 | instance->consumer_h); | |
4509 | break; | |
4510 | } | |
c4a3e0a5 BS |
4511 | |
4512 | scsi_host_put(host); | |
4513 | ||
4514 | pci_set_drvdata(pdev, NULL); | |
4515 | ||
4516 | pci_disable_device(pdev); | |
4517 | ||
4518 | return; | |
4519 | } | |
4520 | ||
4521 | /** | |
4522 | * megasas_shutdown - Shutdown entry point | |
4523 | * @device: Generic device structure | |
4524 | */ | |
4525 | static void megasas_shutdown(struct pci_dev *pdev) | |
4526 | { | |
4527 | struct megasas_instance *instance = pci_get_drvdata(pdev); | |
0c79e681 | 4528 | instance->unload = 1; |
c4a3e0a5 | 4529 | megasas_flush_cache(instance); |
530e6fc1 | 4530 | megasas_shutdown_controller(instance, MR_DCMD_CTRL_SHUTDOWN); |
c4a3e0a5 BS |
4531 | } |
4532 | ||
4533 | /** | |
4534 | * megasas_mgmt_open - char node "open" entry point | |
4535 | */ | |
4536 | static int megasas_mgmt_open(struct inode *inode, struct file *filep) | |
4537 | { | |
4538 | /* | |
4539 | * Allow only those users with admin rights | |
4540 | */ | |
4541 | if (!capable(CAP_SYS_ADMIN)) | |
4542 | return -EACCES; | |
4543 | ||
4544 | return 0; | |
4545 | } | |
4546 | ||
c4a3e0a5 BS |
4547 | /** |
4548 | * megasas_mgmt_fasync - Async notifier registration from applications | |
4549 | * | |
4550 | * This function adds the calling process to a driver global queue. When an | |
4551 | * event occurs, SIGIO will be sent to all processes in this queue. | |
4552 | */ | |
4553 | static int megasas_mgmt_fasync(int fd, struct file *filep, int mode) | |
4554 | { | |
4555 | int rc; | |
4556 | ||
0b950672 | 4557 | mutex_lock(&megasas_async_queue_mutex); |
c4a3e0a5 BS |
4558 | |
4559 | rc = fasync_helper(fd, filep, mode, &megasas_async_queue); | |
4560 | ||
0b950672 | 4561 | mutex_unlock(&megasas_async_queue_mutex); |
c4a3e0a5 BS |
4562 | |
4563 | if (rc >= 0) { | |
4564 | /* For sanity check when we get ioctl */ | |
4565 | filep->private_data = filep; | |
4566 | return 0; | |
4567 | } | |
4568 | ||
4569 | printk(KERN_DEBUG "megasas: fasync_helper failed [%d]\n", rc); | |
4570 | ||
4571 | return rc; | |
4572 | } | |
4573 | ||
c3518837 YB |
4574 | /** |
4575 | * megasas_mgmt_poll - char node "poll" entry point | |
4576 | * */ | |
4577 | static unsigned int megasas_mgmt_poll(struct file *file, poll_table *wait) | |
4578 | { | |
4579 | unsigned int mask; | |
4580 | unsigned long flags; | |
4581 | poll_wait(file, &megasas_poll_wait, wait); | |
4582 | spin_lock_irqsave(&poll_aen_lock, flags); | |
4583 | if (megasas_poll_wait_aen) | |
4584 | mask = (POLLIN | POLLRDNORM); | |
4585 | else | |
4586 | mask = 0; | |
4587 | spin_unlock_irqrestore(&poll_aen_lock, flags); | |
4588 | return mask; | |
4589 | } | |
4590 | ||
c4a3e0a5 BS |
4591 | /** |
4592 | * megasas_mgmt_fw_ioctl - Issues management ioctls to FW | |
4593 | * @instance: Adapter soft state | |
4594 | * @argp: User's ioctl packet | |
4595 | */ | |
4596 | static int | |
4597 | megasas_mgmt_fw_ioctl(struct megasas_instance *instance, | |
4598 | struct megasas_iocpacket __user * user_ioc, | |
4599 | struct megasas_iocpacket *ioc) | |
4600 | { | |
4601 | struct megasas_sge32 *kern_sge32; | |
4602 | struct megasas_cmd *cmd; | |
4603 | void *kbuff_arr[MAX_IOCTL_SGE]; | |
4604 | dma_addr_t buf_handle = 0; | |
4605 | int error = 0, i; | |
4606 | void *sense = NULL; | |
4607 | dma_addr_t sense_handle; | |
7b2519af | 4608 | unsigned long *sense_ptr; |
c4a3e0a5 BS |
4609 | |
4610 | memset(kbuff_arr, 0, sizeof(kbuff_arr)); | |
4611 | ||
4612 | if (ioc->sge_count > MAX_IOCTL_SGE) { | |
4613 | printk(KERN_DEBUG "megasas: SGE count [%d] > max limit [%d]\n", | |
4614 | ioc->sge_count, MAX_IOCTL_SGE); | |
4615 | return -EINVAL; | |
4616 | } | |
4617 | ||
4618 | cmd = megasas_get_cmd(instance); | |
4619 | if (!cmd) { | |
4620 | printk(KERN_DEBUG "megasas: Failed to get a cmd packet\n"); | |
4621 | return -ENOMEM; | |
4622 | } | |
4623 | ||
4624 | /* | |
4625 | * User's IOCTL packet has 2 frames (maximum). Copy those two | |
4626 | * frames into our cmd's frames. cmd->frame's context will get | |
4627 | * overwritten when we copy from user's frames. So set that value | |
4628 | * alone separately | |
4629 | */ | |
4630 | memcpy(cmd->frame, ioc->frame.raw, 2 * MEGAMFI_FRAME_SIZE); | |
4631 | cmd->frame->hdr.context = cmd->index; | |
c3518837 | 4632 | cmd->frame->hdr.pad_0 = 0; |
c4a3e0a5 BS |
4633 | |
4634 | /* | |
4635 | * The management interface between applications and the fw uses | |
4636 | * MFI frames. E.g, RAID configuration changes, LD property changes | |
4637 | * etc are accomplishes through different kinds of MFI frames. The | |
4638 | * driver needs to care only about substituting user buffers with | |
4639 | * kernel buffers in SGLs. The location of SGL is embedded in the | |
4640 | * struct iocpacket itself. | |
4641 | */ | |
4642 | kern_sge32 = (struct megasas_sge32 *) | |
4643 | ((unsigned long)cmd->frame + ioc->sgl_off); | |
4644 | ||
4645 | /* | |
4646 | * For each user buffer, create a mirror buffer and copy in | |
4647 | */ | |
4648 | for (i = 0; i < ioc->sge_count; i++) { | |
98cb7e44 BM |
4649 | if (!ioc->sgl[i].iov_len) |
4650 | continue; | |
4651 | ||
9f35fa8a | 4652 | kbuff_arr[i] = dma_alloc_coherent(&instance->pdev->dev, |
c4a3e0a5 | 4653 | ioc->sgl[i].iov_len, |
9f35fa8a | 4654 | &buf_handle, GFP_KERNEL); |
c4a3e0a5 BS |
4655 | if (!kbuff_arr[i]) { |
4656 | printk(KERN_DEBUG "megasas: Failed to alloc " | |
4657 | "kernel SGL buffer for IOCTL \n"); | |
4658 | error = -ENOMEM; | |
4659 | goto out; | |
4660 | } | |
4661 | ||
4662 | /* | |
4663 | * We don't change the dma_coherent_mask, so | |
4664 | * pci_alloc_consistent only returns 32bit addresses | |
4665 | */ | |
4666 | kern_sge32[i].phys_addr = (u32) buf_handle; | |
4667 | kern_sge32[i].length = ioc->sgl[i].iov_len; | |
4668 | ||
4669 | /* | |
4670 | * We created a kernel buffer corresponding to the | |
4671 | * user buffer. Now copy in from the user buffer | |
4672 | */ | |
4673 | if (copy_from_user(kbuff_arr[i], ioc->sgl[i].iov_base, | |
4674 | (u32) (ioc->sgl[i].iov_len))) { | |
4675 | error = -EFAULT; | |
4676 | goto out; | |
4677 | } | |
4678 | } | |
4679 | ||
4680 | if (ioc->sense_len) { | |
9f35fa8a SP |
4681 | sense = dma_alloc_coherent(&instance->pdev->dev, ioc->sense_len, |
4682 | &sense_handle, GFP_KERNEL); | |
c4a3e0a5 BS |
4683 | if (!sense) { |
4684 | error = -ENOMEM; | |
4685 | goto out; | |
4686 | } | |
4687 | ||
4688 | sense_ptr = | |
7b2519af | 4689 | (unsigned long *) ((unsigned long)cmd->frame + ioc->sense_off); |
c4a3e0a5 BS |
4690 | *sense_ptr = sense_handle; |
4691 | } | |
4692 | ||
4693 | /* | |
4694 | * Set the sync_cmd flag so that the ISR knows not to complete this | |
4695 | * cmd to the SCSI mid-layer | |
4696 | */ | |
4697 | cmd->sync_cmd = 1; | |
4698 | megasas_issue_blocked_cmd(instance, cmd); | |
4699 | cmd->sync_cmd = 0; | |
4700 | ||
4701 | /* | |
4702 | * copy out the kernel buffers to user buffers | |
4703 | */ | |
4704 | for (i = 0; i < ioc->sge_count; i++) { | |
4705 | if (copy_to_user(ioc->sgl[i].iov_base, kbuff_arr[i], | |
4706 | ioc->sgl[i].iov_len)) { | |
4707 | error = -EFAULT; | |
4708 | goto out; | |
4709 | } | |
4710 | } | |
4711 | ||
4712 | /* | |
4713 | * copy out the sense | |
4714 | */ | |
4715 | if (ioc->sense_len) { | |
4716 | /* | |
b70a41e0 | 4717 | * sense_ptr points to the location that has the user |
c4a3e0a5 BS |
4718 | * sense buffer address |
4719 | */ | |
7b2519af YB |
4720 | sense_ptr = (unsigned long *) ((unsigned long)ioc->frame.raw + |
4721 | ioc->sense_off); | |
c4a3e0a5 | 4722 | |
b70a41e0 | 4723 | if (copy_to_user((void __user *)((unsigned long)(*sense_ptr)), |
4724 | sense, ioc->sense_len)) { | |
b10c36a5 | 4725 | printk(KERN_ERR "megasas: Failed to copy out to user " |
4726 | "sense data\n"); | |
c4a3e0a5 BS |
4727 | error = -EFAULT; |
4728 | goto out; | |
4729 | } | |
4730 | } | |
4731 | ||
4732 | /* | |
4733 | * copy the status codes returned by the fw | |
4734 | */ | |
4735 | if (copy_to_user(&user_ioc->frame.hdr.cmd_status, | |
4736 | &cmd->frame->hdr.cmd_status, sizeof(u8))) { | |
4737 | printk(KERN_DEBUG "megasas: Error copying out cmd_status\n"); | |
4738 | error = -EFAULT; | |
4739 | } | |
4740 | ||
4741 | out: | |
4742 | if (sense) { | |
9f35fa8a | 4743 | dma_free_coherent(&instance->pdev->dev, ioc->sense_len, |
c4a3e0a5 BS |
4744 | sense, sense_handle); |
4745 | } | |
4746 | ||
4747 | for (i = 0; i < ioc->sge_count && kbuff_arr[i]; i++) { | |
9f35fa8a | 4748 | dma_free_coherent(&instance->pdev->dev, |
c4a3e0a5 BS |
4749 | kern_sge32[i].length, |
4750 | kbuff_arr[i], kern_sge32[i].phys_addr); | |
4751 | } | |
4752 | ||
4753 | megasas_return_cmd(instance, cmd); | |
4754 | return error; | |
4755 | } | |
4756 | ||
c4a3e0a5 BS |
4757 | static int megasas_mgmt_ioctl_fw(struct file *file, unsigned long arg) |
4758 | { | |
4759 | struct megasas_iocpacket __user *user_ioc = | |
4760 | (struct megasas_iocpacket __user *)arg; | |
4761 | struct megasas_iocpacket *ioc; | |
4762 | struct megasas_instance *instance; | |
4763 | int error; | |
39a98554 | 4764 | int i; |
4765 | unsigned long flags; | |
4766 | u32 wait_time = MEGASAS_RESET_WAIT_TIME; | |
c4a3e0a5 BS |
4767 | |
4768 | ioc = kmalloc(sizeof(*ioc), GFP_KERNEL); | |
4769 | if (!ioc) | |
4770 | return -ENOMEM; | |
4771 | ||
4772 | if (copy_from_user(ioc, user_ioc, sizeof(*ioc))) { | |
4773 | error = -EFAULT; | |
4774 | goto out_kfree_ioc; | |
4775 | } | |
4776 | ||
4777 | instance = megasas_lookup_instance(ioc->host_no); | |
4778 | if (!instance) { | |
4779 | error = -ENODEV; | |
4780 | goto out_kfree_ioc; | |
4781 | } | |
4782 | ||
39a98554 | 4783 | if (instance->adprecovery == MEGASAS_HW_CRITICAL_ERROR) { |
4784 | printk(KERN_ERR "Controller in crit error\n"); | |
0c79e681 YB |
4785 | error = -ENODEV; |
4786 | goto out_kfree_ioc; | |
4787 | } | |
4788 | ||
4789 | if (instance->unload == 1) { | |
4790 | error = -ENODEV; | |
4791 | goto out_kfree_ioc; | |
4792 | } | |
4793 | ||
c4a3e0a5 BS |
4794 | /* |
4795 | * We will allow only MEGASAS_INT_CMDS number of parallel ioctl cmds | |
4796 | */ | |
4797 | if (down_interruptible(&instance->ioctl_sem)) { | |
4798 | error = -ERESTARTSYS; | |
4799 | goto out_kfree_ioc; | |
4800 | } | |
39a98554 | 4801 | |
4802 | for (i = 0; i < wait_time; i++) { | |
4803 | ||
4804 | spin_lock_irqsave(&instance->hba_lock, flags); | |
4805 | if (instance->adprecovery == MEGASAS_HBA_OPERATIONAL) { | |
4806 | spin_unlock_irqrestore(&instance->hba_lock, flags); | |
4807 | break; | |
4808 | } | |
4809 | spin_unlock_irqrestore(&instance->hba_lock, flags); | |
4810 | ||
4811 | if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) { | |
4812 | printk(KERN_NOTICE "megasas: waiting" | |
4813 | "for controller reset to finish\n"); | |
4814 | } | |
4815 | ||
4816 | msleep(1000); | |
4817 | } | |
4818 | ||
4819 | spin_lock_irqsave(&instance->hba_lock, flags); | |
4820 | if (instance->adprecovery != MEGASAS_HBA_OPERATIONAL) { | |
4821 | spin_unlock_irqrestore(&instance->hba_lock, flags); | |
4822 | ||
4823 | printk(KERN_ERR "megaraid_sas: timed out while" | |
4824 | "waiting for HBA to recover\n"); | |
4825 | error = -ENODEV; | |
4826 | goto out_kfree_ioc; | |
4827 | } | |
4828 | spin_unlock_irqrestore(&instance->hba_lock, flags); | |
4829 | ||
c4a3e0a5 BS |
4830 | error = megasas_mgmt_fw_ioctl(instance, user_ioc, ioc); |
4831 | up(&instance->ioctl_sem); | |
4832 | ||
4833 | out_kfree_ioc: | |
4834 | kfree(ioc); | |
4835 | return error; | |
4836 | } | |
4837 | ||
4838 | static int megasas_mgmt_ioctl_aen(struct file *file, unsigned long arg) | |
4839 | { | |
4840 | struct megasas_instance *instance; | |
4841 | struct megasas_aen aen; | |
4842 | int error; | |
39a98554 | 4843 | int i; |
4844 | unsigned long flags; | |
4845 | u32 wait_time = MEGASAS_RESET_WAIT_TIME; | |
c4a3e0a5 BS |
4846 | |
4847 | if (file->private_data != file) { | |
4848 | printk(KERN_DEBUG "megasas: fasync_helper was not " | |
4849 | "called first\n"); | |
4850 | return -EINVAL; | |
4851 | } | |
4852 | ||
4853 | if (copy_from_user(&aen, (void __user *)arg, sizeof(aen))) | |
4854 | return -EFAULT; | |
4855 | ||
4856 | instance = megasas_lookup_instance(aen.host_no); | |
4857 | ||
4858 | if (!instance) | |
4859 | return -ENODEV; | |
4860 | ||
39a98554 | 4861 | if (instance->adprecovery == MEGASAS_HW_CRITICAL_ERROR) { |
4862 | return -ENODEV; | |
0c79e681 YB |
4863 | } |
4864 | ||
4865 | if (instance->unload == 1) { | |
4866 | return -ENODEV; | |
4867 | } | |
4868 | ||
39a98554 | 4869 | for (i = 0; i < wait_time; i++) { |
4870 | ||
4871 | spin_lock_irqsave(&instance->hba_lock, flags); | |
4872 | if (instance->adprecovery == MEGASAS_HBA_OPERATIONAL) { | |
4873 | spin_unlock_irqrestore(&instance->hba_lock, | |
4874 | flags); | |
4875 | break; | |
4876 | } | |
4877 | ||
4878 | spin_unlock_irqrestore(&instance->hba_lock, flags); | |
4879 | ||
4880 | if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) { | |
4881 | printk(KERN_NOTICE "megasas: waiting for" | |
4882 | "controller reset to finish\n"); | |
4883 | } | |
4884 | ||
4885 | msleep(1000); | |
4886 | } | |
4887 | ||
4888 | spin_lock_irqsave(&instance->hba_lock, flags); | |
4889 | if (instance->adprecovery != MEGASAS_HBA_OPERATIONAL) { | |
4890 | spin_unlock_irqrestore(&instance->hba_lock, flags); | |
4891 | printk(KERN_ERR "megaraid_sas: timed out while waiting" | |
4892 | "for HBA to recover.\n"); | |
4893 | return -ENODEV; | |
4894 | } | |
4895 | spin_unlock_irqrestore(&instance->hba_lock, flags); | |
4896 | ||
e5a69e27 | 4897 | mutex_lock(&instance->aen_mutex); |
c4a3e0a5 BS |
4898 | error = megasas_register_aen(instance, aen.seq_num, |
4899 | aen.class_locale_word); | |
e5a69e27 | 4900 | mutex_unlock(&instance->aen_mutex); |
c4a3e0a5 BS |
4901 | return error; |
4902 | } | |
4903 | ||
4904 | /** | |
4905 | * megasas_mgmt_ioctl - char node ioctl entry point | |
4906 | */ | |
4907 | static long | |
4908 | megasas_mgmt_ioctl(struct file *file, unsigned int cmd, unsigned long arg) | |
4909 | { | |
4910 | switch (cmd) { | |
4911 | case MEGASAS_IOC_FIRMWARE: | |
4912 | return megasas_mgmt_ioctl_fw(file, arg); | |
4913 | ||
4914 | case MEGASAS_IOC_GET_AEN: | |
4915 | return megasas_mgmt_ioctl_aen(file, arg); | |
4916 | } | |
4917 | ||
4918 | return -ENOTTY; | |
4919 | } | |
4920 | ||
4921 | #ifdef CONFIG_COMPAT | |
4922 | static int megasas_mgmt_compat_ioctl_fw(struct file *file, unsigned long arg) | |
4923 | { | |
4924 | struct compat_megasas_iocpacket __user *cioc = | |
4925 | (struct compat_megasas_iocpacket __user *)arg; | |
4926 | struct megasas_iocpacket __user *ioc = | |
4927 | compat_alloc_user_space(sizeof(struct megasas_iocpacket)); | |
4928 | int i; | |
4929 | int error = 0; | |
b3dc1a21 | 4930 | compat_uptr_t ptr; |
c4a3e0a5 | 4931 | |
83aabc1b JG |
4932 | if (clear_user(ioc, sizeof(*ioc))) |
4933 | return -EFAULT; | |
c4a3e0a5 BS |
4934 | |
4935 | if (copy_in_user(&ioc->host_no, &cioc->host_no, sizeof(u16)) || | |
4936 | copy_in_user(&ioc->sgl_off, &cioc->sgl_off, sizeof(u32)) || | |
4937 | copy_in_user(&ioc->sense_off, &cioc->sense_off, sizeof(u32)) || | |
4938 | copy_in_user(&ioc->sense_len, &cioc->sense_len, sizeof(u32)) || | |
4939 | copy_in_user(ioc->frame.raw, cioc->frame.raw, 128) || | |
4940 | copy_in_user(&ioc->sge_count, &cioc->sge_count, sizeof(u32))) | |
4941 | return -EFAULT; | |
4942 | ||
b3dc1a21 TH |
4943 | /* |
4944 | * The sense_ptr is used in megasas_mgmt_fw_ioctl only when | |
4945 | * sense_len is not null, so prepare the 64bit value under | |
4946 | * the same condition. | |
4947 | */ | |
4948 | if (ioc->sense_len) { | |
4949 | void __user **sense_ioc_ptr = | |
4950 | (void __user **)(ioc->frame.raw + ioc->sense_off); | |
4951 | compat_uptr_t *sense_cioc_ptr = | |
4952 | (compat_uptr_t *)(cioc->frame.raw + cioc->sense_off); | |
4953 | if (get_user(ptr, sense_cioc_ptr) || | |
4954 | put_user(compat_ptr(ptr), sense_ioc_ptr)) | |
4955 | return -EFAULT; | |
4956 | } | |
c4a3e0a5 | 4957 | |
b3dc1a21 | 4958 | for (i = 0; i < MAX_IOCTL_SGE; i++) { |
c4a3e0a5 BS |
4959 | if (get_user(ptr, &cioc->sgl[i].iov_base) || |
4960 | put_user(compat_ptr(ptr), &ioc->sgl[i].iov_base) || | |
4961 | copy_in_user(&ioc->sgl[i].iov_len, | |
4962 | &cioc->sgl[i].iov_len, sizeof(compat_size_t))) | |
4963 | return -EFAULT; | |
4964 | } | |
4965 | ||
4966 | error = megasas_mgmt_ioctl_fw(file, (unsigned long)ioc); | |
4967 | ||
4968 | if (copy_in_user(&cioc->frame.hdr.cmd_status, | |
4969 | &ioc->frame.hdr.cmd_status, sizeof(u8))) { | |
4970 | printk(KERN_DEBUG "megasas: error copy_in_user cmd_status\n"); | |
4971 | return -EFAULT; | |
4972 | } | |
4973 | return error; | |
4974 | } | |
4975 | ||
4976 | static long | |
4977 | megasas_mgmt_compat_ioctl(struct file *file, unsigned int cmd, | |
4978 | unsigned long arg) | |
4979 | { | |
4980 | switch (cmd) { | |
cb59aa6a SP |
4981 | case MEGASAS_IOC_FIRMWARE32: |
4982 | return megasas_mgmt_compat_ioctl_fw(file, arg); | |
c4a3e0a5 BS |
4983 | case MEGASAS_IOC_GET_AEN: |
4984 | return megasas_mgmt_ioctl_aen(file, arg); | |
4985 | } | |
4986 | ||
4987 | return -ENOTTY; | |
4988 | } | |
4989 | #endif | |
4990 | ||
4991 | /* | |
4992 | * File operations structure for management interface | |
4993 | */ | |
00977a59 | 4994 | static const struct file_operations megasas_mgmt_fops = { |
c4a3e0a5 BS |
4995 | .owner = THIS_MODULE, |
4996 | .open = megasas_mgmt_open, | |
c4a3e0a5 BS |
4997 | .fasync = megasas_mgmt_fasync, |
4998 | .unlocked_ioctl = megasas_mgmt_ioctl, | |
c3518837 | 4999 | .poll = megasas_mgmt_poll, |
c4a3e0a5 BS |
5000 | #ifdef CONFIG_COMPAT |
5001 | .compat_ioctl = megasas_mgmt_compat_ioctl, | |
5002 | #endif | |
6038f373 | 5003 | .llseek = noop_llseek, |
c4a3e0a5 BS |
5004 | }; |
5005 | ||
5006 | /* | |
5007 | * PCI hotplug support registration structure | |
5008 | */ | |
5009 | static struct pci_driver megasas_pci_driver = { | |
5010 | ||
5011 | .name = "megaraid_sas", | |
5012 | .id_table = megasas_pci_table, | |
5013 | .probe = megasas_probe_one, | |
5014 | .remove = __devexit_p(megasas_detach_one), | |
31ea7088 | 5015 | .suspend = megasas_suspend, |
5016 | .resume = megasas_resume, | |
c4a3e0a5 BS |
5017 | .shutdown = megasas_shutdown, |
5018 | }; | |
5019 | ||
5020 | /* | |
5021 | * Sysfs driver attributes | |
5022 | */ | |
5023 | static ssize_t megasas_sysfs_show_version(struct device_driver *dd, char *buf) | |
5024 | { | |
5025 | return snprintf(buf, strlen(MEGASAS_VERSION) + 2, "%s\n", | |
5026 | MEGASAS_VERSION); | |
5027 | } | |
5028 | ||
5029 | static DRIVER_ATTR(version, S_IRUGO, megasas_sysfs_show_version, NULL); | |
5030 | ||
5031 | static ssize_t | |
5032 | megasas_sysfs_show_release_date(struct device_driver *dd, char *buf) | |
5033 | { | |
5034 | return snprintf(buf, strlen(MEGASAS_RELDATE) + 2, "%s\n", | |
5035 | MEGASAS_RELDATE); | |
5036 | } | |
5037 | ||
5038 | static DRIVER_ATTR(release_date, S_IRUGO, megasas_sysfs_show_release_date, | |
5039 | NULL); | |
5040 | ||
72c4fd36 YB |
5041 | static ssize_t |
5042 | megasas_sysfs_show_support_poll_for_event(struct device_driver *dd, char *buf) | |
5043 | { | |
5044 | return sprintf(buf, "%u\n", support_poll_for_event); | |
5045 | } | |
5046 | ||
5047 | static DRIVER_ATTR(support_poll_for_event, S_IRUGO, | |
5048 | megasas_sysfs_show_support_poll_for_event, NULL); | |
5049 | ||
837f5fe8 YB |
5050 | static ssize_t |
5051 | megasas_sysfs_show_support_device_change(struct device_driver *dd, char *buf) | |
5052 | { | |
5053 | return sprintf(buf, "%u\n", support_device_change); | |
5054 | } | |
5055 | ||
5056 | static DRIVER_ATTR(support_device_change, S_IRUGO, | |
5057 | megasas_sysfs_show_support_device_change, NULL); | |
5058 | ||
658dcedb SP |
5059 | static ssize_t |
5060 | megasas_sysfs_show_dbg_lvl(struct device_driver *dd, char *buf) | |
5061 | { | |
ad84db2e | 5062 | return sprintf(buf, "%u\n", megasas_dbg_lvl); |
658dcedb SP |
5063 | } |
5064 | ||
5065 | static ssize_t | |
5066 | megasas_sysfs_set_dbg_lvl(struct device_driver *dd, const char *buf, size_t count) | |
5067 | { | |
5068 | int retval = count; | |
5069 | if(sscanf(buf,"%u",&megasas_dbg_lvl)<1){ | |
5070 | printk(KERN_ERR "megasas: could not set dbg_lvl\n"); | |
5071 | retval = -EINVAL; | |
5072 | } | |
5073 | return retval; | |
5074 | } | |
5075 | ||
66dca9b8 | 5076 | static DRIVER_ATTR(dbg_lvl, S_IRUGO|S_IWUSR, megasas_sysfs_show_dbg_lvl, |
ad84db2e | 5077 | megasas_sysfs_set_dbg_lvl); |
5078 | ||
5079 | static ssize_t | |
5080 | megasas_sysfs_show_poll_mode_io(struct device_driver *dd, char *buf) | |
5081 | { | |
5082 | return sprintf(buf, "%u\n", poll_mode_io); | |
5083 | } | |
5084 | ||
5085 | static ssize_t | |
5086 | megasas_sysfs_set_poll_mode_io(struct device_driver *dd, | |
5087 | const char *buf, size_t count) | |
5088 | { | |
5089 | int retval = count; | |
5090 | int tmp = poll_mode_io; | |
5091 | int i; | |
5092 | struct megasas_instance *instance; | |
5093 | ||
5094 | if (sscanf(buf, "%u", &poll_mode_io) < 1) { | |
5095 | printk(KERN_ERR "megasas: could not set poll_mode_io\n"); | |
5096 | retval = -EINVAL; | |
5097 | } | |
5098 | ||
5099 | /* | |
5100 | * Check if poll_mode_io is already set or is same as previous value | |
5101 | */ | |
5102 | if ((tmp && poll_mode_io) || (tmp == poll_mode_io)) | |
5103 | goto out; | |
5104 | ||
5105 | if (poll_mode_io) { | |
5106 | /* | |
5107 | * Start timers for all adapters | |
5108 | */ | |
5109 | for (i = 0; i < megasas_mgmt_info.max_index; i++) { | |
5110 | instance = megasas_mgmt_info.instance[i]; | |
5111 | if (instance) { | |
5112 | megasas_start_timer(instance, | |
5113 | &instance->io_completion_timer, | |
5114 | megasas_io_completion_timer, | |
5115 | MEGASAS_COMPLETION_TIMER_INTERVAL); | |
5116 | } | |
5117 | } | |
5118 | } else { | |
5119 | /* | |
5120 | * Delete timers for all adapters | |
5121 | */ | |
5122 | for (i = 0; i < megasas_mgmt_info.max_index; i++) { | |
5123 | instance = megasas_mgmt_info.instance[i]; | |
5124 | if (instance) | |
5125 | del_timer_sync(&instance->io_completion_timer); | |
5126 | } | |
5127 | } | |
5128 | ||
5129 | out: | |
5130 | return retval; | |
5131 | } | |
5132 | ||
7e8a75f4 YB |
5133 | static void |
5134 | megasas_aen_polling(struct work_struct *work) | |
5135 | { | |
5136 | struct megasas_aen_event *ev = | |
5137 | container_of(work, struct megasas_aen_event, hotplug_work); | |
5138 | struct megasas_instance *instance = ev->instance; | |
5139 | union megasas_evt_class_locale class_locale; | |
5140 | struct Scsi_Host *host; | |
5141 | struct scsi_device *sdev1; | |
5142 | u16 pd_index = 0; | |
c9786842 | 5143 | u16 ld_index = 0; |
7e8a75f4 YB |
5144 | int i, j, doscan = 0; |
5145 | u32 seq_num; | |
5146 | int error; | |
5147 | ||
5148 | if (!instance) { | |
5149 | printk(KERN_ERR "invalid instance!\n"); | |
5150 | kfree(ev); | |
5151 | return; | |
5152 | } | |
5153 | instance->ev = NULL; | |
5154 | host = instance->host; | |
5155 | if (instance->evt_detail) { | |
5156 | ||
5157 | switch (instance->evt_detail->code) { | |
5158 | case MR_EVT_PD_INSERTED: | |
c9786842 YB |
5159 | if (megasas_get_pd_list(instance) == 0) { |
5160 | for (i = 0; i < MEGASAS_MAX_PD_CHANNELS; i++) { | |
5161 | for (j = 0; | |
5162 | j < MEGASAS_MAX_DEV_PER_CHANNEL; | |
5163 | j++) { | |
5164 | ||
5165 | pd_index = | |
5166 | (i * MEGASAS_MAX_DEV_PER_CHANNEL) + j; | |
5167 | ||
5168 | sdev1 = | |
5169 | scsi_device_lookup(host, i, j, 0); | |
5170 | ||
5171 | if (instance->pd_list[pd_index].driveState | |
5172 | == MR_PD_STATE_SYSTEM) { | |
5173 | if (!sdev1) { | |
5174 | scsi_add_device(host, i, j, 0); | |
5175 | } | |
5176 | ||
5177 | if (sdev1) | |
5178 | scsi_device_put(sdev1); | |
5179 | } | |
5180 | } | |
5181 | } | |
5182 | } | |
5183 | doscan = 0; | |
5184 | break; | |
5185 | ||
7e8a75f4 | 5186 | case MR_EVT_PD_REMOVED: |
c9786842 YB |
5187 | if (megasas_get_pd_list(instance) == 0) { |
5188 | megasas_get_pd_list(instance); | |
5189 | for (i = 0; i < MEGASAS_MAX_PD_CHANNELS; i++) { | |
5190 | for (j = 0; | |
5191 | j < MEGASAS_MAX_DEV_PER_CHANNEL; | |
5192 | j++) { | |
5193 | ||
5194 | pd_index = | |
5195 | (i * MEGASAS_MAX_DEV_PER_CHANNEL) + j; | |
5196 | ||
5197 | sdev1 = | |
5198 | scsi_device_lookup(host, i, j, 0); | |
5199 | ||
5200 | if (instance->pd_list[pd_index].driveState | |
5201 | == MR_PD_STATE_SYSTEM) { | |
5202 | if (sdev1) { | |
5203 | scsi_device_put(sdev1); | |
5204 | } | |
5205 | } else { | |
5206 | if (sdev1) { | |
5207 | scsi_remove_device(sdev1); | |
5208 | scsi_device_put(sdev1); | |
5209 | } | |
5210 | } | |
5211 | } | |
5212 | } | |
5213 | } | |
5214 | doscan = 0; | |
5215 | break; | |
5216 | ||
5217 | case MR_EVT_LD_OFFLINE: | |
4c598b23 | 5218 | case MR_EVT_CFG_CLEARED: |
c9786842 YB |
5219 | case MR_EVT_LD_DELETED: |
5220 | megasas_get_ld_list(instance); | |
5221 | for (i = 0; i < MEGASAS_MAX_LD_CHANNELS; i++) { | |
5222 | for (j = 0; | |
5223 | j < MEGASAS_MAX_DEV_PER_CHANNEL; | |
5224 | j++) { | |
5225 | ||
5226 | ld_index = | |
5227 | (i * MEGASAS_MAX_DEV_PER_CHANNEL) + j; | |
5228 | ||
5229 | sdev1 = scsi_device_lookup(host, | |
5230 | i + MEGASAS_MAX_LD_CHANNELS, | |
5231 | j, | |
5232 | 0); | |
5233 | ||
5234 | if (instance->ld_ids[ld_index] != 0xff) { | |
5235 | if (sdev1) { | |
5236 | scsi_device_put(sdev1); | |
5237 | } | |
5238 | } else { | |
5239 | if (sdev1) { | |
5240 | scsi_remove_device(sdev1); | |
5241 | scsi_device_put(sdev1); | |
5242 | } | |
5243 | } | |
5244 | } | |
5245 | } | |
5246 | doscan = 0; | |
5247 | break; | |
5248 | case MR_EVT_LD_CREATED: | |
5249 | megasas_get_ld_list(instance); | |
5250 | for (i = 0; i < MEGASAS_MAX_LD_CHANNELS; i++) { | |
5251 | for (j = 0; | |
5252 | j < MEGASAS_MAX_DEV_PER_CHANNEL; | |
5253 | j++) { | |
5254 | ld_index = | |
5255 | (i * MEGASAS_MAX_DEV_PER_CHANNEL) + j; | |
5256 | ||
5257 | sdev1 = scsi_device_lookup(host, | |
5258 | i+MEGASAS_MAX_LD_CHANNELS, | |
5259 | j, 0); | |
5260 | ||
5261 | if (instance->ld_ids[ld_index] != | |
5262 | 0xff) { | |
5263 | if (!sdev1) { | |
5264 | scsi_add_device(host, | |
5265 | i + 2, | |
5266 | j, 0); | |
5267 | } | |
5268 | } | |
5269 | if (sdev1) { | |
5270 | scsi_device_put(sdev1); | |
5271 | } | |
5272 | } | |
5273 | } | |
5274 | doscan = 0; | |
5275 | break; | |
7e8a75f4 | 5276 | case MR_EVT_CTRL_HOST_BUS_SCAN_REQUESTED: |
c9786842 | 5277 | case MR_EVT_FOREIGN_CFG_IMPORTED: |
9c915a8c | 5278 | case MR_EVT_LD_STATE_CHANGE: |
7e8a75f4 YB |
5279 | doscan = 1; |
5280 | break; | |
5281 | default: | |
5282 | doscan = 0; | |
5283 | break; | |
5284 | } | |
5285 | } else { | |
5286 | printk(KERN_ERR "invalid evt_detail!\n"); | |
5287 | kfree(ev); | |
5288 | return; | |
5289 | } | |
5290 | ||
5291 | if (doscan) { | |
5292 | printk(KERN_INFO "scanning ...\n"); | |
5293 | megasas_get_pd_list(instance); | |
5294 | for (i = 0; i < MEGASAS_MAX_PD_CHANNELS; i++) { | |
5295 | for (j = 0; j < MEGASAS_MAX_DEV_PER_CHANNEL; j++) { | |
5296 | pd_index = i*MEGASAS_MAX_DEV_PER_CHANNEL + j; | |
5297 | sdev1 = scsi_device_lookup(host, i, j, 0); | |
5298 | if (instance->pd_list[pd_index].driveState == | |
5299 | MR_PD_STATE_SYSTEM) { | |
5300 | if (!sdev1) { | |
5301 | scsi_add_device(host, i, j, 0); | |
5302 | } | |
5303 | if (sdev1) | |
5304 | scsi_device_put(sdev1); | |
5305 | } else { | |
5306 | if (sdev1) { | |
5307 | scsi_remove_device(sdev1); | |
5308 | scsi_device_put(sdev1); | |
5309 | } | |
5310 | } | |
5311 | } | |
5312 | } | |
c9786842 YB |
5313 | |
5314 | megasas_get_ld_list(instance); | |
5315 | for (i = 0; i < MEGASAS_MAX_LD_CHANNELS; i++) { | |
5316 | for (j = 0; j < MEGASAS_MAX_DEV_PER_CHANNEL; j++) { | |
5317 | ld_index = | |
5318 | (i * MEGASAS_MAX_DEV_PER_CHANNEL) + j; | |
5319 | ||
5320 | sdev1 = scsi_device_lookup(host, | |
5321 | i+MEGASAS_MAX_LD_CHANNELS, j, 0); | |
5322 | if (instance->ld_ids[ld_index] != 0xff) { | |
5323 | if (!sdev1) { | |
5324 | scsi_add_device(host, | |
5325 | i+2, | |
5326 | j, 0); | |
5327 | } else { | |
5328 | scsi_device_put(sdev1); | |
5329 | } | |
5330 | } else { | |
5331 | if (sdev1) { | |
5332 | scsi_remove_device(sdev1); | |
5333 | scsi_device_put(sdev1); | |
5334 | } | |
5335 | } | |
5336 | } | |
5337 | } | |
7e8a75f4 YB |
5338 | } |
5339 | ||
5340 | if ( instance->aen_cmd != NULL ) { | |
5341 | kfree(ev); | |
5342 | return ; | |
5343 | } | |
5344 | ||
5345 | seq_num = instance->evt_detail->seq_num + 1; | |
5346 | ||
5347 | /* Register AEN with FW for latest sequence number plus 1 */ | |
5348 | class_locale.members.reserved = 0; | |
5349 | class_locale.members.locale = MR_EVT_LOCALE_ALL; | |
5350 | class_locale.members.class = MR_EVT_CLASS_DEBUG; | |
5351 | mutex_lock(&instance->aen_mutex); | |
5352 | error = megasas_register_aen(instance, seq_num, | |
5353 | class_locale.word); | |
5354 | mutex_unlock(&instance->aen_mutex); | |
5355 | ||
5356 | if (error) | |
5357 | printk(KERN_ERR "register aen failed error %x\n", error); | |
5358 | ||
5359 | kfree(ev); | |
5360 | } | |
5361 | ||
5362 | ||
bb7d3f24 | 5363 | static DRIVER_ATTR(poll_mode_io, S_IRUGO|S_IWUSR, |
ad84db2e | 5364 | megasas_sysfs_show_poll_mode_io, |
5365 | megasas_sysfs_set_poll_mode_io); | |
658dcedb | 5366 | |
c4a3e0a5 BS |
5367 | /** |
5368 | * megasas_init - Driver load entry point | |
5369 | */ | |
5370 | static int __init megasas_init(void) | |
5371 | { | |
5372 | int rval; | |
5373 | ||
5374 | /* | |
5375 | * Announce driver version and other information | |
5376 | */ | |
5377 | printk(KERN_INFO "megasas: %s %s\n", MEGASAS_VERSION, | |
5378 | MEGASAS_EXT_VERSION); | |
5379 | ||
72c4fd36 | 5380 | support_poll_for_event = 2; |
837f5fe8 | 5381 | support_device_change = 1; |
72c4fd36 | 5382 | |
c4a3e0a5 BS |
5383 | memset(&megasas_mgmt_info, 0, sizeof(megasas_mgmt_info)); |
5384 | ||
5385 | /* | |
5386 | * Register character device node | |
5387 | */ | |
5388 | rval = register_chrdev(0, "megaraid_sas_ioctl", &megasas_mgmt_fops); | |
5389 | ||
5390 | if (rval < 0) { | |
5391 | printk(KERN_DEBUG "megasas: failed to open device node\n"); | |
5392 | return rval; | |
5393 | } | |
5394 | ||
5395 | megasas_mgmt_majorno = rval; | |
5396 | ||
5397 | /* | |
5398 | * Register ourselves as PCI hotplug module | |
5399 | */ | |
4041b9cd | 5400 | rval = pci_register_driver(&megasas_pci_driver); |
c4a3e0a5 BS |
5401 | |
5402 | if (rval) { | |
5403 | printk(KERN_DEBUG "megasas: PCI hotplug regisration failed \n"); | |
83aabc1b JG |
5404 | goto err_pcidrv; |
5405 | } | |
5406 | ||
5407 | rval = driver_create_file(&megasas_pci_driver.driver, | |
5408 | &driver_attr_version); | |
5409 | if (rval) | |
5410 | goto err_dcf_attr_ver; | |
5411 | rval = driver_create_file(&megasas_pci_driver.driver, | |
5412 | &driver_attr_release_date); | |
5413 | if (rval) | |
5414 | goto err_dcf_rel_date; | |
72c4fd36 YB |
5415 | |
5416 | rval = driver_create_file(&megasas_pci_driver.driver, | |
5417 | &driver_attr_support_poll_for_event); | |
5418 | if (rval) | |
5419 | goto err_dcf_support_poll_for_event; | |
5420 | ||
83aabc1b JG |
5421 | rval = driver_create_file(&megasas_pci_driver.driver, |
5422 | &driver_attr_dbg_lvl); | |
5423 | if (rval) | |
5424 | goto err_dcf_dbg_lvl; | |
ad84db2e | 5425 | rval = driver_create_file(&megasas_pci_driver.driver, |
5426 | &driver_attr_poll_mode_io); | |
5427 | if (rval) | |
5428 | goto err_dcf_poll_mode_io; | |
c4a3e0a5 | 5429 | |
837f5fe8 YB |
5430 | rval = driver_create_file(&megasas_pci_driver.driver, |
5431 | &driver_attr_support_device_change); | |
5432 | if (rval) | |
5433 | goto err_dcf_support_device_change; | |
5434 | ||
c4a3e0a5 | 5435 | return rval; |
ad84db2e | 5436 | |
837f5fe8 YB |
5437 | err_dcf_support_device_change: |
5438 | driver_remove_file(&megasas_pci_driver.driver, | |
5439 | &driver_attr_poll_mode_io); | |
5440 | ||
ad84db2e | 5441 | err_dcf_poll_mode_io: |
5442 | driver_remove_file(&megasas_pci_driver.driver, | |
5443 | &driver_attr_dbg_lvl); | |
83aabc1b | 5444 | err_dcf_dbg_lvl: |
72c4fd36 YB |
5445 | driver_remove_file(&megasas_pci_driver.driver, |
5446 | &driver_attr_support_poll_for_event); | |
5447 | ||
5448 | err_dcf_support_poll_for_event: | |
83aabc1b JG |
5449 | driver_remove_file(&megasas_pci_driver.driver, |
5450 | &driver_attr_release_date); | |
72c4fd36 | 5451 | |
83aabc1b JG |
5452 | err_dcf_rel_date: |
5453 | driver_remove_file(&megasas_pci_driver.driver, &driver_attr_version); | |
5454 | err_dcf_attr_ver: | |
5455 | pci_unregister_driver(&megasas_pci_driver); | |
5456 | err_pcidrv: | |
5457 | unregister_chrdev(megasas_mgmt_majorno, "megaraid_sas_ioctl"); | |
0d49016b | 5458 | return rval; |
c4a3e0a5 BS |
5459 | } |
5460 | ||
5461 | /** | |
5462 | * megasas_exit - Driver unload entry point | |
5463 | */ | |
5464 | static void __exit megasas_exit(void) | |
5465 | { | |
ad84db2e | 5466 | driver_remove_file(&megasas_pci_driver.driver, |
5467 | &driver_attr_poll_mode_io); | |
658dcedb SP |
5468 | driver_remove_file(&megasas_pci_driver.driver, |
5469 | &driver_attr_dbg_lvl); | |
837f5fe8 YB |
5470 | driver_remove_file(&megasas_pci_driver.driver, |
5471 | &driver_attr_support_poll_for_event); | |
5472 | driver_remove_file(&megasas_pci_driver.driver, | |
5473 | &driver_attr_support_device_change); | |
83aabc1b JG |
5474 | driver_remove_file(&megasas_pci_driver.driver, |
5475 | &driver_attr_release_date); | |
5476 | driver_remove_file(&megasas_pci_driver.driver, &driver_attr_version); | |
c4a3e0a5 BS |
5477 | |
5478 | pci_unregister_driver(&megasas_pci_driver); | |
5479 | unregister_chrdev(megasas_mgmt_majorno, "megaraid_sas_ioctl"); | |
5480 | } | |
5481 | ||
5482 | module_init(megasas_init); | |
5483 | module_exit(megasas_exit); |