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1 | // SPDX-License-Identifier: GPL-2.0-or-later | |
2 | /* | |
3 | * Linux MegaRAID driver for SAS based RAID controllers | |
4 | * | |
5 | * Copyright (c) 2003-2013 LSI Corporation | |
6 | * Copyright (c) 2013-2016 Avago Technologies | |
7 | * Copyright (c) 2016-2018 Broadcom Inc. | |
8 | * | |
9 | * Authors: Broadcom Inc. | |
10 | * Sreenivas Bagalkote | |
11 | * Sumant Patro | |
12 | * Bo Yang | |
13 | * Adam Radford | |
14 | * Kashyap Desai <kashyap.desai@broadcom.com> | |
15 | * Sumit Saxena <sumit.saxena@broadcom.com> | |
16 | * | |
17 | * Send feedback to: megaraidlinux.pdl@broadcom.com | |
18 | */ | |
19 | ||
20 | #include <linux/kernel.h> | |
21 | #include <linux/types.h> | |
22 | #include <linux/pci.h> | |
23 | #include <linux/list.h> | |
24 | #include <linux/moduleparam.h> | |
25 | #include <linux/module.h> | |
26 | #include <linux/spinlock.h> | |
27 | #include <linux/interrupt.h> | |
28 | #include <linux/delay.h> | |
29 | #include <linux/uio.h> | |
30 | #include <linux/slab.h> | |
31 | #include <linux/uaccess.h> | |
32 | #include <asm/unaligned.h> | |
33 | #include <linux/fs.h> | |
34 | #include <linux/compat.h> | |
35 | #include <linux/blkdev.h> | |
36 | #include <linux/mutex.h> | |
37 | #include <linux/poll.h> | |
38 | #include <linux/vmalloc.h> | |
39 | #include <linux/irq_poll.h> | |
40 | ||
41 | #include <scsi/scsi.h> | |
42 | #include <scsi/scsi_cmnd.h> | |
43 | #include <scsi/scsi_device.h> | |
44 | #include <scsi/scsi_host.h> | |
45 | #include <scsi/scsi_tcq.h> | |
46 | #include <scsi/scsi_dbg.h> | |
47 | #include "megaraid_sas_fusion.h" | |
48 | #include "megaraid_sas.h" | |
49 | ||
50 | /* | |
51 | * Number of sectors per IO command | |
52 | * Will be set in megasas_init_mfi if user does not provide | |
53 | */ | |
54 | static unsigned int max_sectors; | |
55 | module_param_named(max_sectors, max_sectors, int, 0444); | |
56 | MODULE_PARM_DESC(max_sectors, | |
57 | "Maximum number of sectors per IO command"); | |
58 | ||
59 | static int msix_disable; | |
60 | module_param(msix_disable, int, 0444); | |
61 | MODULE_PARM_DESC(msix_disable, "Disable MSI-X interrupt handling. Default: 0"); | |
62 | ||
63 | static unsigned int msix_vectors; | |
64 | module_param(msix_vectors, int, 0444); | |
65 | MODULE_PARM_DESC(msix_vectors, "MSI-X max vector count. Default: Set by FW"); | |
66 | ||
67 | static int allow_vf_ioctls; | |
68 | module_param(allow_vf_ioctls, int, 0444); | |
69 | MODULE_PARM_DESC(allow_vf_ioctls, "Allow ioctls in SR-IOV VF mode. Default: 0"); | |
70 | ||
71 | static unsigned int throttlequeuedepth = MEGASAS_THROTTLE_QUEUE_DEPTH; | |
72 | module_param(throttlequeuedepth, int, 0444); | |
73 | MODULE_PARM_DESC(throttlequeuedepth, | |
74 | "Adapter queue depth when throttled due to I/O timeout. Default: 16"); | |
75 | ||
76 | unsigned int resetwaittime = MEGASAS_RESET_WAIT_TIME; | |
77 | module_param(resetwaittime, int, 0444); | |
78 | MODULE_PARM_DESC(resetwaittime, "Wait time in (1-180s) after I/O timeout before resetting adapter. Default: 180s"); | |
79 | ||
80 | int smp_affinity_enable = 1; | |
81 | module_param(smp_affinity_enable, int, 0444); | |
82 | MODULE_PARM_DESC(smp_affinity_enable, "SMP affinity feature enable/disable Default: enable(1)"); | |
83 | ||
84 | int rdpq_enable = 1; | |
85 | module_param(rdpq_enable, int, 0444); | |
86 | MODULE_PARM_DESC(rdpq_enable, "Allocate reply queue in chunks for large queue depth enable/disable Default: enable(1)"); | |
87 | ||
88 | unsigned int dual_qdepth_disable; | |
89 | module_param(dual_qdepth_disable, int, 0444); | |
90 | MODULE_PARM_DESC(dual_qdepth_disable, "Disable dual queue depth feature. Default: 0"); | |
91 | ||
92 | unsigned int scmd_timeout = MEGASAS_DEFAULT_CMD_TIMEOUT; | |
93 | module_param(scmd_timeout, int, 0444); | |
94 | MODULE_PARM_DESC(scmd_timeout, "scsi command timeout (10-90s), default 90s. See megasas_reset_timer."); | |
95 | ||
96 | int perf_mode = -1; | |
97 | module_param(perf_mode, int, 0444); | |
98 | MODULE_PARM_DESC(perf_mode, "Performance mode (only for Aero adapters), options:\n\t\t" | |
99 | "0 - balanced: High iops and low latency queues are allocated &\n\t\t" | |
100 | "interrupt coalescing is enabled only on high iops queues\n\t\t" | |
101 | "1 - iops: High iops queues are not allocated &\n\t\t" | |
102 | "interrupt coalescing is enabled on all queues\n\t\t" | |
103 | "2 - latency: High iops queues are not allocated &\n\t\t" | |
104 | "interrupt coalescing is disabled on all queues\n\t\t" | |
105 | "default mode is 'balanced'" | |
106 | ); | |
107 | ||
108 | int event_log_level = MFI_EVT_CLASS_CRITICAL; | |
109 | module_param(event_log_level, int, 0644); | |
110 | MODULE_PARM_DESC(event_log_level, "Asynchronous event logging level- range is: -2(CLASS_DEBUG) to 4(CLASS_DEAD), Default: 2(CLASS_CRITICAL)"); | |
111 | ||
112 | MODULE_LICENSE("GPL"); | |
113 | MODULE_VERSION(MEGASAS_VERSION); | |
114 | MODULE_AUTHOR("megaraidlinux.pdl@broadcom.com"); | |
115 | MODULE_DESCRIPTION("Broadcom MegaRAID SAS Driver"); | |
116 | ||
117 | int megasas_transition_to_ready(struct megasas_instance *instance, int ocr); | |
118 | static int megasas_get_pd_list(struct megasas_instance *instance); | |
119 | static int megasas_ld_list_query(struct megasas_instance *instance, | |
120 | u8 query_type); | |
121 | static int megasas_issue_init_mfi(struct megasas_instance *instance); | |
122 | static int megasas_register_aen(struct megasas_instance *instance, | |
123 | u32 seq_num, u32 class_locale_word); | |
124 | static void megasas_get_pd_info(struct megasas_instance *instance, | |
125 | struct scsi_device *sdev); | |
126 | ||
127 | /* | |
128 | * PCI ID table for all supported controllers | |
129 | */ | |
130 | static struct pci_device_id megasas_pci_table[] = { | |
131 | ||
132 | {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1064R)}, | |
133 | /* xscale IOP */ | |
134 | {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078R)}, | |
135 | /* ppc IOP */ | |
136 | {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078DE)}, | |
137 | /* ppc IOP */ | |
138 | {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078GEN2)}, | |
139 | /* gen2*/ | |
140 | {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0079GEN2)}, | |
141 | /* gen2*/ | |
142 | {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0073SKINNY)}, | |
143 | /* skinny*/ | |
144 | {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0071SKINNY)}, | |
145 | /* skinny*/ | |
146 | {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_VERDE_ZCR)}, | |
147 | /* xscale IOP, vega */ | |
148 | {PCI_DEVICE(PCI_VENDOR_ID_DELL, PCI_DEVICE_ID_DELL_PERC5)}, | |
149 | /* xscale IOP */ | |
150 | {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FUSION)}, | |
151 | /* Fusion */ | |
152 | {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_PLASMA)}, | |
153 | /* Plasma */ | |
154 | {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_INVADER)}, | |
155 | /* Invader */ | |
156 | {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FURY)}, | |
157 | /* Fury */ | |
158 | {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_INTRUDER)}, | |
159 | /* Intruder */ | |
160 | {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_INTRUDER_24)}, | |
161 | /* Intruder 24 port*/ | |
162 | {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_CUTLASS_52)}, | |
163 | {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_CUTLASS_53)}, | |
164 | /* VENTURA */ | |
165 | {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_VENTURA)}, | |
166 | {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_CRUSADER)}, | |
167 | {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_HARPOON)}, | |
168 | {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_TOMCAT)}, | |
169 | {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_VENTURA_4PORT)}, | |
170 | {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_CRUSADER_4PORT)}, | |
171 | {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E1)}, | |
172 | {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E2)}, | |
173 | {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E5)}, | |
174 | {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E6)}, | |
175 | {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E0)}, | |
176 | {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E3)}, | |
177 | {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E4)}, | |
178 | {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E7)}, | |
179 | {} | |
180 | }; | |
181 | ||
182 | MODULE_DEVICE_TABLE(pci, megasas_pci_table); | |
183 | ||
184 | static int megasas_mgmt_majorno; | |
185 | struct megasas_mgmt_info megasas_mgmt_info; | |
186 | static struct fasync_struct *megasas_async_queue; | |
187 | static DEFINE_MUTEX(megasas_async_queue_mutex); | |
188 | ||
189 | static int megasas_poll_wait_aen; | |
190 | static DECLARE_WAIT_QUEUE_HEAD(megasas_poll_wait); | |
191 | static u32 support_poll_for_event; | |
192 | u32 megasas_dbg_lvl; | |
193 | static u32 support_device_change; | |
194 | static bool support_nvme_encapsulation; | |
195 | static bool support_pci_lane_margining; | |
196 | ||
197 | /* define lock for aen poll */ | |
198 | spinlock_t poll_aen_lock; | |
199 | ||
200 | extern struct dentry *megasas_debugfs_root; | |
201 | extern void megasas_init_debugfs(void); | |
202 | extern void megasas_exit_debugfs(void); | |
203 | extern void megasas_setup_debugfs(struct megasas_instance *instance); | |
204 | extern void megasas_destroy_debugfs(struct megasas_instance *instance); | |
205 | ||
206 | void | |
207 | megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd, | |
208 | u8 alt_status); | |
209 | static u32 | |
210 | megasas_read_fw_status_reg_gen2(struct megasas_instance *instance); | |
211 | static int | |
212 | megasas_adp_reset_gen2(struct megasas_instance *instance, | |
213 | struct megasas_register_set __iomem *reg_set); | |
214 | static irqreturn_t megasas_isr(int irq, void *devp); | |
215 | static u32 | |
216 | megasas_init_adapter_mfi(struct megasas_instance *instance); | |
217 | u32 | |
218 | megasas_build_and_issue_cmd(struct megasas_instance *instance, | |
219 | struct scsi_cmnd *scmd); | |
220 | static void megasas_complete_cmd_dpc(unsigned long instance_addr); | |
221 | int | |
222 | wait_and_poll(struct megasas_instance *instance, struct megasas_cmd *cmd, | |
223 | int seconds); | |
224 | void megasas_fusion_ocr_wq(struct work_struct *work); | |
225 | static int megasas_get_ld_vf_affiliation(struct megasas_instance *instance, | |
226 | int initial); | |
227 | static int | |
228 | megasas_set_dma_mask(struct megasas_instance *instance); | |
229 | static int | |
230 | megasas_alloc_ctrl_mem(struct megasas_instance *instance); | |
231 | static inline void | |
232 | megasas_free_ctrl_mem(struct megasas_instance *instance); | |
233 | static inline int | |
234 | megasas_alloc_ctrl_dma_buffers(struct megasas_instance *instance); | |
235 | static inline void | |
236 | megasas_free_ctrl_dma_buffers(struct megasas_instance *instance); | |
237 | static inline void | |
238 | megasas_init_ctrl_params(struct megasas_instance *instance); | |
239 | ||
240 | u32 megasas_readl(struct megasas_instance *instance, | |
241 | const volatile void __iomem *addr) | |
242 | { | |
243 | u32 i = 0, ret_val; | |
244 | /* | |
245 | * Due to a HW errata in Aero controllers, reads to certain | |
246 | * Fusion registers could intermittently return all zeroes. | |
247 | * This behavior is transient in nature and subsequent reads will | |
248 | * return valid value. As a workaround in driver, retry readl for | |
249 | * upto three times until a non-zero value is read. | |
250 | */ | |
251 | if (instance->adapter_type == AERO_SERIES) { | |
252 | do { | |
253 | ret_val = readl(addr); | |
254 | i++; | |
255 | } while (ret_val == 0 && i < 3); | |
256 | return ret_val; | |
257 | } else { | |
258 | return readl(addr); | |
259 | } | |
260 | } | |
261 | ||
262 | /** | |
263 | * megasas_set_dma_settings - Populate DMA address, length and flags for DCMDs | |
264 | * @instance: Adapter soft state | |
265 | * @dcmd: DCMD frame inside MFI command | |
266 | * @dma_addr: DMA address of buffer to be passed to FW | |
267 | * @dma_len: Length of DMA buffer to be passed to FW | |
268 | * @return: void | |
269 | */ | |
270 | void megasas_set_dma_settings(struct megasas_instance *instance, | |
271 | struct megasas_dcmd_frame *dcmd, | |
272 | dma_addr_t dma_addr, u32 dma_len) | |
273 | { | |
274 | if (instance->consistent_mask_64bit) { | |
275 | dcmd->sgl.sge64[0].phys_addr = cpu_to_le64(dma_addr); | |
276 | dcmd->sgl.sge64[0].length = cpu_to_le32(dma_len); | |
277 | dcmd->flags = cpu_to_le16(dcmd->flags | MFI_FRAME_SGL64); | |
278 | ||
279 | } else { | |
280 | dcmd->sgl.sge32[0].phys_addr = | |
281 | cpu_to_le32(lower_32_bits(dma_addr)); | |
282 | dcmd->sgl.sge32[0].length = cpu_to_le32(dma_len); | |
283 | dcmd->flags = cpu_to_le16(dcmd->flags); | |
284 | } | |
285 | } | |
286 | ||
287 | static void | |
288 | megasas_issue_dcmd(struct megasas_instance *instance, struct megasas_cmd *cmd) | |
289 | { | |
290 | instance->instancet->fire_cmd(instance, | |
291 | cmd->frame_phys_addr, 0, instance->reg_set); | |
292 | return; | |
293 | } | |
294 | ||
295 | /** | |
296 | * megasas_get_cmd - Get a command from the free pool | |
297 | * @instance: Adapter soft state | |
298 | * | |
299 | * Returns a free command from the pool | |
300 | */ | |
301 | struct megasas_cmd *megasas_get_cmd(struct megasas_instance | |
302 | *instance) | |
303 | { | |
304 | unsigned long flags; | |
305 | struct megasas_cmd *cmd = NULL; | |
306 | ||
307 | spin_lock_irqsave(&instance->mfi_pool_lock, flags); | |
308 | ||
309 | if (!list_empty(&instance->cmd_pool)) { | |
310 | cmd = list_entry((&instance->cmd_pool)->next, | |
311 | struct megasas_cmd, list); | |
312 | list_del_init(&cmd->list); | |
313 | } else { | |
314 | dev_err(&instance->pdev->dev, "Command pool empty!\n"); | |
315 | } | |
316 | ||
317 | spin_unlock_irqrestore(&instance->mfi_pool_lock, flags); | |
318 | return cmd; | |
319 | } | |
320 | ||
321 | /** | |
322 | * megasas_return_cmd - Return a cmd to free command pool | |
323 | * @instance: Adapter soft state | |
324 | * @cmd: Command packet to be returned to free command pool | |
325 | */ | |
326 | void | |
327 | megasas_return_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd) | |
328 | { | |
329 | unsigned long flags; | |
330 | u32 blk_tags; | |
331 | struct megasas_cmd_fusion *cmd_fusion; | |
332 | struct fusion_context *fusion = instance->ctrl_context; | |
333 | ||
334 | /* This flag is used only for fusion adapter. | |
335 | * Wait for Interrupt for Polled mode DCMD | |
336 | */ | |
337 | if (cmd->flags & DRV_DCMD_POLLED_MODE) | |
338 | return; | |
339 | ||
340 | spin_lock_irqsave(&instance->mfi_pool_lock, flags); | |
341 | ||
342 | if (fusion) { | |
343 | blk_tags = instance->max_scsi_cmds + cmd->index; | |
344 | cmd_fusion = fusion->cmd_list[blk_tags]; | |
345 | megasas_return_cmd_fusion(instance, cmd_fusion); | |
346 | } | |
347 | cmd->scmd = NULL; | |
348 | cmd->frame_count = 0; | |
349 | cmd->flags = 0; | |
350 | memset(cmd->frame, 0, instance->mfi_frame_size); | |
351 | cmd->frame->io.context = cpu_to_le32(cmd->index); | |
352 | if (!fusion && reset_devices) | |
353 | cmd->frame->hdr.cmd = MFI_CMD_INVALID; | |
354 | list_add(&cmd->list, (&instance->cmd_pool)->next); | |
355 | ||
356 | spin_unlock_irqrestore(&instance->mfi_pool_lock, flags); | |
357 | ||
358 | } | |
359 | ||
360 | static const char * | |
361 | format_timestamp(uint32_t timestamp) | |
362 | { | |
363 | static char buffer[32]; | |
364 | ||
365 | if ((timestamp & 0xff000000) == 0xff000000) | |
366 | snprintf(buffer, sizeof(buffer), "boot + %us", timestamp & | |
367 | 0x00ffffff); | |
368 | else | |
369 | snprintf(buffer, sizeof(buffer), "%us", timestamp); | |
370 | return buffer; | |
371 | } | |
372 | ||
373 | static const char * | |
374 | format_class(int8_t class) | |
375 | { | |
376 | static char buffer[6]; | |
377 | ||
378 | switch (class) { | |
379 | case MFI_EVT_CLASS_DEBUG: | |
380 | return "debug"; | |
381 | case MFI_EVT_CLASS_PROGRESS: | |
382 | return "progress"; | |
383 | case MFI_EVT_CLASS_INFO: | |
384 | return "info"; | |
385 | case MFI_EVT_CLASS_WARNING: | |
386 | return "WARN"; | |
387 | case MFI_EVT_CLASS_CRITICAL: | |
388 | return "CRIT"; | |
389 | case MFI_EVT_CLASS_FATAL: | |
390 | return "FATAL"; | |
391 | case MFI_EVT_CLASS_DEAD: | |
392 | return "DEAD"; | |
393 | default: | |
394 | snprintf(buffer, sizeof(buffer), "%d", class); | |
395 | return buffer; | |
396 | } | |
397 | } | |
398 | ||
399 | /** | |
400 | * megasas_decode_evt: Decode FW AEN event and print critical event | |
401 | * for information. | |
402 | * @instance: Adapter soft state | |
403 | */ | |
404 | static void | |
405 | megasas_decode_evt(struct megasas_instance *instance) | |
406 | { | |
407 | struct megasas_evt_detail *evt_detail = instance->evt_detail; | |
408 | union megasas_evt_class_locale class_locale; | |
409 | class_locale.word = le32_to_cpu(evt_detail->cl.word); | |
410 | ||
411 | if ((event_log_level < MFI_EVT_CLASS_DEBUG) || | |
412 | (event_log_level > MFI_EVT_CLASS_DEAD)) { | |
413 | printk(KERN_WARNING "megaraid_sas: provided event log level is out of range, setting it to default 2(CLASS_CRITICAL), permissible range is: -2 to 4\n"); | |
414 | event_log_level = MFI_EVT_CLASS_CRITICAL; | |
415 | } | |
416 | ||
417 | if (class_locale.members.class >= event_log_level) | |
418 | dev_info(&instance->pdev->dev, "%d (%s/0x%04x/%s) - %s\n", | |
419 | le32_to_cpu(evt_detail->seq_num), | |
420 | format_timestamp(le32_to_cpu(evt_detail->time_stamp)), | |
421 | (class_locale.members.locale), | |
422 | format_class(class_locale.members.class), | |
423 | evt_detail->description); | |
424 | } | |
425 | ||
426 | /** | |
427 | * The following functions are defined for xscale | |
428 | * (deviceid : 1064R, PERC5) controllers | |
429 | */ | |
430 | ||
431 | /** | |
432 | * megasas_enable_intr_xscale - Enables interrupts | |
433 | * @regs: MFI register set | |
434 | */ | |
435 | static inline void | |
436 | megasas_enable_intr_xscale(struct megasas_instance *instance) | |
437 | { | |
438 | struct megasas_register_set __iomem *regs; | |
439 | ||
440 | regs = instance->reg_set; | |
441 | writel(0, &(regs)->outbound_intr_mask); | |
442 | ||
443 | /* Dummy readl to force pci flush */ | |
444 | readl(®s->outbound_intr_mask); | |
445 | } | |
446 | ||
447 | /** | |
448 | * megasas_disable_intr_xscale -Disables interrupt | |
449 | * @regs: MFI register set | |
450 | */ | |
451 | static inline void | |
452 | megasas_disable_intr_xscale(struct megasas_instance *instance) | |
453 | { | |
454 | struct megasas_register_set __iomem *regs; | |
455 | u32 mask = 0x1f; | |
456 | ||
457 | regs = instance->reg_set; | |
458 | writel(mask, ®s->outbound_intr_mask); | |
459 | /* Dummy readl to force pci flush */ | |
460 | readl(®s->outbound_intr_mask); | |
461 | } | |
462 | ||
463 | /** | |
464 | * megasas_read_fw_status_reg_xscale - returns the current FW status value | |
465 | * @regs: MFI register set | |
466 | */ | |
467 | static u32 | |
468 | megasas_read_fw_status_reg_xscale(struct megasas_instance *instance) | |
469 | { | |
470 | return readl(&instance->reg_set->outbound_msg_0); | |
471 | } | |
472 | /** | |
473 | * megasas_clear_interrupt_xscale - Check & clear interrupt | |
474 | * @regs: MFI register set | |
475 | */ | |
476 | static int | |
477 | megasas_clear_intr_xscale(struct megasas_instance *instance) | |
478 | { | |
479 | u32 status; | |
480 | u32 mfiStatus = 0; | |
481 | struct megasas_register_set __iomem *regs; | |
482 | regs = instance->reg_set; | |
483 | ||
484 | /* | |
485 | * Check if it is our interrupt | |
486 | */ | |
487 | status = readl(®s->outbound_intr_status); | |
488 | ||
489 | if (status & MFI_OB_INTR_STATUS_MASK) | |
490 | mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE; | |
491 | if (status & MFI_XSCALE_OMR0_CHANGE_INTERRUPT) | |
492 | mfiStatus |= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE; | |
493 | ||
494 | /* | |
495 | * Clear the interrupt by writing back the same value | |
496 | */ | |
497 | if (mfiStatus) | |
498 | writel(status, ®s->outbound_intr_status); | |
499 | ||
500 | /* Dummy readl to force pci flush */ | |
501 | readl(®s->outbound_intr_status); | |
502 | ||
503 | return mfiStatus; | |
504 | } | |
505 | ||
506 | /** | |
507 | * megasas_fire_cmd_xscale - Sends command to the FW | |
508 | * @frame_phys_addr : Physical address of cmd | |
509 | * @frame_count : Number of frames for the command | |
510 | * @regs : MFI register set | |
511 | */ | |
512 | static inline void | |
513 | megasas_fire_cmd_xscale(struct megasas_instance *instance, | |
514 | dma_addr_t frame_phys_addr, | |
515 | u32 frame_count, | |
516 | struct megasas_register_set __iomem *regs) | |
517 | { | |
518 | unsigned long flags; | |
519 | ||
520 | spin_lock_irqsave(&instance->hba_lock, flags); | |
521 | writel((frame_phys_addr >> 3)|(frame_count), | |
522 | &(regs)->inbound_queue_port); | |
523 | spin_unlock_irqrestore(&instance->hba_lock, flags); | |
524 | } | |
525 | ||
526 | /** | |
527 | * megasas_adp_reset_xscale - For controller reset | |
528 | * @regs: MFI register set | |
529 | */ | |
530 | static int | |
531 | megasas_adp_reset_xscale(struct megasas_instance *instance, | |
532 | struct megasas_register_set __iomem *regs) | |
533 | { | |
534 | u32 i; | |
535 | u32 pcidata; | |
536 | ||
537 | writel(MFI_ADP_RESET, ®s->inbound_doorbell); | |
538 | ||
539 | for (i = 0; i < 3; i++) | |
540 | msleep(1000); /* sleep for 3 secs */ | |
541 | pcidata = 0; | |
542 | pci_read_config_dword(instance->pdev, MFI_1068_PCSR_OFFSET, &pcidata); | |
543 | dev_notice(&instance->pdev->dev, "pcidata = %x\n", pcidata); | |
544 | if (pcidata & 0x2) { | |
545 | dev_notice(&instance->pdev->dev, "mfi 1068 offset read=%x\n", pcidata); | |
546 | pcidata &= ~0x2; | |
547 | pci_write_config_dword(instance->pdev, | |
548 | MFI_1068_PCSR_OFFSET, pcidata); | |
549 | ||
550 | for (i = 0; i < 2; i++) | |
551 | msleep(1000); /* need to wait 2 secs again */ | |
552 | ||
553 | pcidata = 0; | |
554 | pci_read_config_dword(instance->pdev, | |
555 | MFI_1068_FW_HANDSHAKE_OFFSET, &pcidata); | |
556 | dev_notice(&instance->pdev->dev, "1068 offset handshake read=%x\n", pcidata); | |
557 | if ((pcidata & 0xffff0000) == MFI_1068_FW_READY) { | |
558 | dev_notice(&instance->pdev->dev, "1068 offset pcidt=%x\n", pcidata); | |
559 | pcidata = 0; | |
560 | pci_write_config_dword(instance->pdev, | |
561 | MFI_1068_FW_HANDSHAKE_OFFSET, pcidata); | |
562 | } | |
563 | } | |
564 | return 0; | |
565 | } | |
566 | ||
567 | /** | |
568 | * megasas_check_reset_xscale - For controller reset check | |
569 | * @regs: MFI register set | |
570 | */ | |
571 | static int | |
572 | megasas_check_reset_xscale(struct megasas_instance *instance, | |
573 | struct megasas_register_set __iomem *regs) | |
574 | { | |
575 | if ((atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) && | |
576 | (le32_to_cpu(*instance->consumer) == | |
577 | MEGASAS_ADPRESET_INPROG_SIGN)) | |
578 | return 1; | |
579 | return 0; | |
580 | } | |
581 | ||
582 | static struct megasas_instance_template megasas_instance_template_xscale = { | |
583 | ||
584 | .fire_cmd = megasas_fire_cmd_xscale, | |
585 | .enable_intr = megasas_enable_intr_xscale, | |
586 | .disable_intr = megasas_disable_intr_xscale, | |
587 | .clear_intr = megasas_clear_intr_xscale, | |
588 | .read_fw_status_reg = megasas_read_fw_status_reg_xscale, | |
589 | .adp_reset = megasas_adp_reset_xscale, | |
590 | .check_reset = megasas_check_reset_xscale, | |
591 | .service_isr = megasas_isr, | |
592 | .tasklet = megasas_complete_cmd_dpc, | |
593 | .init_adapter = megasas_init_adapter_mfi, | |
594 | .build_and_issue_cmd = megasas_build_and_issue_cmd, | |
595 | .issue_dcmd = megasas_issue_dcmd, | |
596 | }; | |
597 | ||
598 | /** | |
599 | * This is the end of set of functions & definitions specific | |
600 | * to xscale (deviceid : 1064R, PERC5) controllers | |
601 | */ | |
602 | ||
603 | /** | |
604 | * The following functions are defined for ppc (deviceid : 0x60) | |
605 | * controllers | |
606 | */ | |
607 | ||
608 | /** | |
609 | * megasas_enable_intr_ppc - Enables interrupts | |
610 | * @regs: MFI register set | |
611 | */ | |
612 | static inline void | |
613 | megasas_enable_intr_ppc(struct megasas_instance *instance) | |
614 | { | |
615 | struct megasas_register_set __iomem *regs; | |
616 | ||
617 | regs = instance->reg_set; | |
618 | writel(0xFFFFFFFF, &(regs)->outbound_doorbell_clear); | |
619 | ||
620 | writel(~0x80000000, &(regs)->outbound_intr_mask); | |
621 | ||
622 | /* Dummy readl to force pci flush */ | |
623 | readl(®s->outbound_intr_mask); | |
624 | } | |
625 | ||
626 | /** | |
627 | * megasas_disable_intr_ppc - Disable interrupt | |
628 | * @regs: MFI register set | |
629 | */ | |
630 | static inline void | |
631 | megasas_disable_intr_ppc(struct megasas_instance *instance) | |
632 | { | |
633 | struct megasas_register_set __iomem *regs; | |
634 | u32 mask = 0xFFFFFFFF; | |
635 | ||
636 | regs = instance->reg_set; | |
637 | writel(mask, ®s->outbound_intr_mask); | |
638 | /* Dummy readl to force pci flush */ | |
639 | readl(®s->outbound_intr_mask); | |
640 | } | |
641 | ||
642 | /** | |
643 | * megasas_read_fw_status_reg_ppc - returns the current FW status value | |
644 | * @regs: MFI register set | |
645 | */ | |
646 | static u32 | |
647 | megasas_read_fw_status_reg_ppc(struct megasas_instance *instance) | |
648 | { | |
649 | return readl(&instance->reg_set->outbound_scratch_pad_0); | |
650 | } | |
651 | ||
652 | /** | |
653 | * megasas_clear_interrupt_ppc - Check & clear interrupt | |
654 | * @regs: MFI register set | |
655 | */ | |
656 | static int | |
657 | megasas_clear_intr_ppc(struct megasas_instance *instance) | |
658 | { | |
659 | u32 status, mfiStatus = 0; | |
660 | struct megasas_register_set __iomem *regs; | |
661 | regs = instance->reg_set; | |
662 | ||
663 | /* | |
664 | * Check if it is our interrupt | |
665 | */ | |
666 | status = readl(®s->outbound_intr_status); | |
667 | ||
668 | if (status & MFI_REPLY_1078_MESSAGE_INTERRUPT) | |
669 | mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE; | |
670 | ||
671 | if (status & MFI_G2_OUTBOUND_DOORBELL_CHANGE_INTERRUPT) | |
672 | mfiStatus |= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE; | |
673 | ||
674 | /* | |
675 | * Clear the interrupt by writing back the same value | |
676 | */ | |
677 | writel(status, ®s->outbound_doorbell_clear); | |
678 | ||
679 | /* Dummy readl to force pci flush */ | |
680 | readl(®s->outbound_doorbell_clear); | |
681 | ||
682 | return mfiStatus; | |
683 | } | |
684 | ||
685 | /** | |
686 | * megasas_fire_cmd_ppc - Sends command to the FW | |
687 | * @frame_phys_addr : Physical address of cmd | |
688 | * @frame_count : Number of frames for the command | |
689 | * @regs : MFI register set | |
690 | */ | |
691 | static inline void | |
692 | megasas_fire_cmd_ppc(struct megasas_instance *instance, | |
693 | dma_addr_t frame_phys_addr, | |
694 | u32 frame_count, | |
695 | struct megasas_register_set __iomem *regs) | |
696 | { | |
697 | unsigned long flags; | |
698 | ||
699 | spin_lock_irqsave(&instance->hba_lock, flags); | |
700 | writel((frame_phys_addr | (frame_count<<1))|1, | |
701 | &(regs)->inbound_queue_port); | |
702 | spin_unlock_irqrestore(&instance->hba_lock, flags); | |
703 | } | |
704 | ||
705 | /** | |
706 | * megasas_check_reset_ppc - For controller reset check | |
707 | * @regs: MFI register set | |
708 | */ | |
709 | static int | |
710 | megasas_check_reset_ppc(struct megasas_instance *instance, | |
711 | struct megasas_register_set __iomem *regs) | |
712 | { | |
713 | if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) | |
714 | return 1; | |
715 | ||
716 | return 0; | |
717 | } | |
718 | ||
719 | static struct megasas_instance_template megasas_instance_template_ppc = { | |
720 | ||
721 | .fire_cmd = megasas_fire_cmd_ppc, | |
722 | .enable_intr = megasas_enable_intr_ppc, | |
723 | .disable_intr = megasas_disable_intr_ppc, | |
724 | .clear_intr = megasas_clear_intr_ppc, | |
725 | .read_fw_status_reg = megasas_read_fw_status_reg_ppc, | |
726 | .adp_reset = megasas_adp_reset_xscale, | |
727 | .check_reset = megasas_check_reset_ppc, | |
728 | .service_isr = megasas_isr, | |
729 | .tasklet = megasas_complete_cmd_dpc, | |
730 | .init_adapter = megasas_init_adapter_mfi, | |
731 | .build_and_issue_cmd = megasas_build_and_issue_cmd, | |
732 | .issue_dcmd = megasas_issue_dcmd, | |
733 | }; | |
734 | ||
735 | /** | |
736 | * megasas_enable_intr_skinny - Enables interrupts | |
737 | * @regs: MFI register set | |
738 | */ | |
739 | static inline void | |
740 | megasas_enable_intr_skinny(struct megasas_instance *instance) | |
741 | { | |
742 | struct megasas_register_set __iomem *regs; | |
743 | ||
744 | regs = instance->reg_set; | |
745 | writel(0xFFFFFFFF, &(regs)->outbound_intr_mask); | |
746 | ||
747 | writel(~MFI_SKINNY_ENABLE_INTERRUPT_MASK, &(regs)->outbound_intr_mask); | |
748 | ||
749 | /* Dummy readl to force pci flush */ | |
750 | readl(®s->outbound_intr_mask); | |
751 | } | |
752 | ||
753 | /** | |
754 | * megasas_disable_intr_skinny - Disables interrupt | |
755 | * @regs: MFI register set | |
756 | */ | |
757 | static inline void | |
758 | megasas_disable_intr_skinny(struct megasas_instance *instance) | |
759 | { | |
760 | struct megasas_register_set __iomem *regs; | |
761 | u32 mask = 0xFFFFFFFF; | |
762 | ||
763 | regs = instance->reg_set; | |
764 | writel(mask, ®s->outbound_intr_mask); | |
765 | /* Dummy readl to force pci flush */ | |
766 | readl(®s->outbound_intr_mask); | |
767 | } | |
768 | ||
769 | /** | |
770 | * megasas_read_fw_status_reg_skinny - returns the current FW status value | |
771 | * @regs: MFI register set | |
772 | */ | |
773 | static u32 | |
774 | megasas_read_fw_status_reg_skinny(struct megasas_instance *instance) | |
775 | { | |
776 | return readl(&instance->reg_set->outbound_scratch_pad_0); | |
777 | } | |
778 | ||
779 | /** | |
780 | * megasas_clear_interrupt_skinny - Check & clear interrupt | |
781 | * @regs: MFI register set | |
782 | */ | |
783 | static int | |
784 | megasas_clear_intr_skinny(struct megasas_instance *instance) | |
785 | { | |
786 | u32 status; | |
787 | u32 mfiStatus = 0; | |
788 | struct megasas_register_set __iomem *regs; | |
789 | regs = instance->reg_set; | |
790 | ||
791 | /* | |
792 | * Check if it is our interrupt | |
793 | */ | |
794 | status = readl(®s->outbound_intr_status); | |
795 | ||
796 | if (!(status & MFI_SKINNY_ENABLE_INTERRUPT_MASK)) { | |
797 | return 0; | |
798 | } | |
799 | ||
800 | /* | |
801 | * Check if it is our interrupt | |
802 | */ | |
803 | if ((megasas_read_fw_status_reg_skinny(instance) & MFI_STATE_MASK) == | |
804 | MFI_STATE_FAULT) { | |
805 | mfiStatus = MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE; | |
806 | } else | |
807 | mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE; | |
808 | ||
809 | /* | |
810 | * Clear the interrupt by writing back the same value | |
811 | */ | |
812 | writel(status, ®s->outbound_intr_status); | |
813 | ||
814 | /* | |
815 | * dummy read to flush PCI | |
816 | */ | |
817 | readl(®s->outbound_intr_status); | |
818 | ||
819 | return mfiStatus; | |
820 | } | |
821 | ||
822 | /** | |
823 | * megasas_fire_cmd_skinny - Sends command to the FW | |
824 | * @frame_phys_addr : Physical address of cmd | |
825 | * @frame_count : Number of frames for the command | |
826 | * @regs : MFI register set | |
827 | */ | |
828 | static inline void | |
829 | megasas_fire_cmd_skinny(struct megasas_instance *instance, | |
830 | dma_addr_t frame_phys_addr, | |
831 | u32 frame_count, | |
832 | struct megasas_register_set __iomem *regs) | |
833 | { | |
834 | unsigned long flags; | |
835 | ||
836 | spin_lock_irqsave(&instance->hba_lock, flags); | |
837 | writel(upper_32_bits(frame_phys_addr), | |
838 | &(regs)->inbound_high_queue_port); | |
839 | writel((lower_32_bits(frame_phys_addr) | (frame_count<<1))|1, | |
840 | &(regs)->inbound_low_queue_port); | |
841 | spin_unlock_irqrestore(&instance->hba_lock, flags); | |
842 | } | |
843 | ||
844 | /** | |
845 | * megasas_check_reset_skinny - For controller reset check | |
846 | * @regs: MFI register set | |
847 | */ | |
848 | static int | |
849 | megasas_check_reset_skinny(struct megasas_instance *instance, | |
850 | struct megasas_register_set __iomem *regs) | |
851 | { | |
852 | if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) | |
853 | return 1; | |
854 | ||
855 | return 0; | |
856 | } | |
857 | ||
858 | static struct megasas_instance_template megasas_instance_template_skinny = { | |
859 | ||
860 | .fire_cmd = megasas_fire_cmd_skinny, | |
861 | .enable_intr = megasas_enable_intr_skinny, | |
862 | .disable_intr = megasas_disable_intr_skinny, | |
863 | .clear_intr = megasas_clear_intr_skinny, | |
864 | .read_fw_status_reg = megasas_read_fw_status_reg_skinny, | |
865 | .adp_reset = megasas_adp_reset_gen2, | |
866 | .check_reset = megasas_check_reset_skinny, | |
867 | .service_isr = megasas_isr, | |
868 | .tasklet = megasas_complete_cmd_dpc, | |
869 | .init_adapter = megasas_init_adapter_mfi, | |
870 | .build_and_issue_cmd = megasas_build_and_issue_cmd, | |
871 | .issue_dcmd = megasas_issue_dcmd, | |
872 | }; | |
873 | ||
874 | ||
875 | /** | |
876 | * The following functions are defined for gen2 (deviceid : 0x78 0x79) | |
877 | * controllers | |
878 | */ | |
879 | ||
880 | /** | |
881 | * megasas_enable_intr_gen2 - Enables interrupts | |
882 | * @regs: MFI register set | |
883 | */ | |
884 | static inline void | |
885 | megasas_enable_intr_gen2(struct megasas_instance *instance) | |
886 | { | |
887 | struct megasas_register_set __iomem *regs; | |
888 | ||
889 | regs = instance->reg_set; | |
890 | writel(0xFFFFFFFF, &(regs)->outbound_doorbell_clear); | |
891 | ||
892 | /* write ~0x00000005 (4 & 1) to the intr mask*/ | |
893 | writel(~MFI_GEN2_ENABLE_INTERRUPT_MASK, &(regs)->outbound_intr_mask); | |
894 | ||
895 | /* Dummy readl to force pci flush */ | |
896 | readl(®s->outbound_intr_mask); | |
897 | } | |
898 | ||
899 | /** | |
900 | * megasas_disable_intr_gen2 - Disables interrupt | |
901 | * @regs: MFI register set | |
902 | */ | |
903 | static inline void | |
904 | megasas_disable_intr_gen2(struct megasas_instance *instance) | |
905 | { | |
906 | struct megasas_register_set __iomem *regs; | |
907 | u32 mask = 0xFFFFFFFF; | |
908 | ||
909 | regs = instance->reg_set; | |
910 | writel(mask, ®s->outbound_intr_mask); | |
911 | /* Dummy readl to force pci flush */ | |
912 | readl(®s->outbound_intr_mask); | |
913 | } | |
914 | ||
915 | /** | |
916 | * megasas_read_fw_status_reg_gen2 - returns the current FW status value | |
917 | * @regs: MFI register set | |
918 | */ | |
919 | static u32 | |
920 | megasas_read_fw_status_reg_gen2(struct megasas_instance *instance) | |
921 | { | |
922 | return readl(&instance->reg_set->outbound_scratch_pad_0); | |
923 | } | |
924 | ||
925 | /** | |
926 | * megasas_clear_interrupt_gen2 - Check & clear interrupt | |
927 | * @regs: MFI register set | |
928 | */ | |
929 | static int | |
930 | megasas_clear_intr_gen2(struct megasas_instance *instance) | |
931 | { | |
932 | u32 status; | |
933 | u32 mfiStatus = 0; | |
934 | struct megasas_register_set __iomem *regs; | |
935 | regs = instance->reg_set; | |
936 | ||
937 | /* | |
938 | * Check if it is our interrupt | |
939 | */ | |
940 | status = readl(®s->outbound_intr_status); | |
941 | ||
942 | if (status & MFI_INTR_FLAG_REPLY_MESSAGE) { | |
943 | mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE; | |
944 | } | |
945 | if (status & MFI_G2_OUTBOUND_DOORBELL_CHANGE_INTERRUPT) { | |
946 | mfiStatus |= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE; | |
947 | } | |
948 | ||
949 | /* | |
950 | * Clear the interrupt by writing back the same value | |
951 | */ | |
952 | if (mfiStatus) | |
953 | writel(status, ®s->outbound_doorbell_clear); | |
954 | ||
955 | /* Dummy readl to force pci flush */ | |
956 | readl(®s->outbound_intr_status); | |
957 | ||
958 | return mfiStatus; | |
959 | } | |
960 | /** | |
961 | * megasas_fire_cmd_gen2 - Sends command to the FW | |
962 | * @frame_phys_addr : Physical address of cmd | |
963 | * @frame_count : Number of frames for the command | |
964 | * @regs : MFI register set | |
965 | */ | |
966 | static inline void | |
967 | megasas_fire_cmd_gen2(struct megasas_instance *instance, | |
968 | dma_addr_t frame_phys_addr, | |
969 | u32 frame_count, | |
970 | struct megasas_register_set __iomem *regs) | |
971 | { | |
972 | unsigned long flags; | |
973 | ||
974 | spin_lock_irqsave(&instance->hba_lock, flags); | |
975 | writel((frame_phys_addr | (frame_count<<1))|1, | |
976 | &(regs)->inbound_queue_port); | |
977 | spin_unlock_irqrestore(&instance->hba_lock, flags); | |
978 | } | |
979 | ||
980 | /** | |
981 | * megasas_adp_reset_gen2 - For controller reset | |
982 | * @regs: MFI register set | |
983 | */ | |
984 | static int | |
985 | megasas_adp_reset_gen2(struct megasas_instance *instance, | |
986 | struct megasas_register_set __iomem *reg_set) | |
987 | { | |
988 | u32 retry = 0 ; | |
989 | u32 HostDiag; | |
990 | u32 __iomem *seq_offset = ®_set->seq_offset; | |
991 | u32 __iomem *hostdiag_offset = ®_set->host_diag; | |
992 | ||
993 | if (instance->instancet == &megasas_instance_template_skinny) { | |
994 | seq_offset = ®_set->fusion_seq_offset; | |
995 | hostdiag_offset = ®_set->fusion_host_diag; | |
996 | } | |
997 | ||
998 | writel(0, seq_offset); | |
999 | writel(4, seq_offset); | |
1000 | writel(0xb, seq_offset); | |
1001 | writel(2, seq_offset); | |
1002 | writel(7, seq_offset); | |
1003 | writel(0xd, seq_offset); | |
1004 | ||
1005 | msleep(1000); | |
1006 | ||
1007 | HostDiag = (u32)readl(hostdiag_offset); | |
1008 | ||
1009 | while (!(HostDiag & DIAG_WRITE_ENABLE)) { | |
1010 | msleep(100); | |
1011 | HostDiag = (u32)readl(hostdiag_offset); | |
1012 | dev_notice(&instance->pdev->dev, "RESETGEN2: retry=%x, hostdiag=%x\n", | |
1013 | retry, HostDiag); | |
1014 | ||
1015 | if (retry++ >= 100) | |
1016 | return 1; | |
1017 | ||
1018 | } | |
1019 | ||
1020 | dev_notice(&instance->pdev->dev, "ADP_RESET_GEN2: HostDiag=%x\n", HostDiag); | |
1021 | ||
1022 | writel((HostDiag | DIAG_RESET_ADAPTER), hostdiag_offset); | |
1023 | ||
1024 | ssleep(10); | |
1025 | ||
1026 | HostDiag = (u32)readl(hostdiag_offset); | |
1027 | while (HostDiag & DIAG_RESET_ADAPTER) { | |
1028 | msleep(100); | |
1029 | HostDiag = (u32)readl(hostdiag_offset); | |
1030 | dev_notice(&instance->pdev->dev, "RESET_GEN2: retry=%x, hostdiag=%x\n", | |
1031 | retry, HostDiag); | |
1032 | ||
1033 | if (retry++ >= 1000) | |
1034 | return 1; | |
1035 | ||
1036 | } | |
1037 | return 0; | |
1038 | } | |
1039 | ||
1040 | /** | |
1041 | * megasas_check_reset_gen2 - For controller reset check | |
1042 | * @regs: MFI register set | |
1043 | */ | |
1044 | static int | |
1045 | megasas_check_reset_gen2(struct megasas_instance *instance, | |
1046 | struct megasas_register_set __iomem *regs) | |
1047 | { | |
1048 | if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) | |
1049 | return 1; | |
1050 | ||
1051 | return 0; | |
1052 | } | |
1053 | ||
1054 | static struct megasas_instance_template megasas_instance_template_gen2 = { | |
1055 | ||
1056 | .fire_cmd = megasas_fire_cmd_gen2, | |
1057 | .enable_intr = megasas_enable_intr_gen2, | |
1058 | .disable_intr = megasas_disable_intr_gen2, | |
1059 | .clear_intr = megasas_clear_intr_gen2, | |
1060 | .read_fw_status_reg = megasas_read_fw_status_reg_gen2, | |
1061 | .adp_reset = megasas_adp_reset_gen2, | |
1062 | .check_reset = megasas_check_reset_gen2, | |
1063 | .service_isr = megasas_isr, | |
1064 | .tasklet = megasas_complete_cmd_dpc, | |
1065 | .init_adapter = megasas_init_adapter_mfi, | |
1066 | .build_and_issue_cmd = megasas_build_and_issue_cmd, | |
1067 | .issue_dcmd = megasas_issue_dcmd, | |
1068 | }; | |
1069 | ||
1070 | /** | |
1071 | * This is the end of set of functions & definitions | |
1072 | * specific to gen2 (deviceid : 0x78, 0x79) controllers | |
1073 | */ | |
1074 | ||
1075 | /* | |
1076 | * Template added for TB (Fusion) | |
1077 | */ | |
1078 | extern struct megasas_instance_template megasas_instance_template_fusion; | |
1079 | ||
1080 | /** | |
1081 | * megasas_issue_polled - Issues a polling command | |
1082 | * @instance: Adapter soft state | |
1083 | * @cmd: Command packet to be issued | |
1084 | * | |
1085 | * For polling, MFI requires the cmd_status to be set to MFI_STAT_INVALID_STATUS before posting. | |
1086 | */ | |
1087 | int | |
1088 | megasas_issue_polled(struct megasas_instance *instance, struct megasas_cmd *cmd) | |
1089 | { | |
1090 | struct megasas_header *frame_hdr = &cmd->frame->hdr; | |
1091 | ||
1092 | frame_hdr->cmd_status = MFI_STAT_INVALID_STATUS; | |
1093 | frame_hdr->flags |= cpu_to_le16(MFI_FRAME_DONT_POST_IN_REPLY_QUEUE); | |
1094 | ||
1095 | if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { | |
1096 | dev_err(&instance->pdev->dev, "Failed from %s %d\n", | |
1097 | __func__, __LINE__); | |
1098 | return DCMD_NOT_FIRED; | |
1099 | } | |
1100 | ||
1101 | instance->instancet->issue_dcmd(instance, cmd); | |
1102 | ||
1103 | return wait_and_poll(instance, cmd, instance->requestorId ? | |
1104 | MEGASAS_ROUTINE_WAIT_TIME_VF : MFI_IO_TIMEOUT_SECS); | |
1105 | } | |
1106 | ||
1107 | /** | |
1108 | * megasas_issue_blocked_cmd - Synchronous wrapper around regular FW cmds | |
1109 | * @instance: Adapter soft state | |
1110 | * @cmd: Command to be issued | |
1111 | * @timeout: Timeout in seconds | |
1112 | * | |
1113 | * This function waits on an event for the command to be returned from ISR. | |
1114 | * Max wait time is MEGASAS_INTERNAL_CMD_WAIT_TIME secs | |
1115 | * Used to issue ioctl commands. | |
1116 | */ | |
1117 | int | |
1118 | megasas_issue_blocked_cmd(struct megasas_instance *instance, | |
1119 | struct megasas_cmd *cmd, int timeout) | |
1120 | { | |
1121 | int ret = 0; | |
1122 | cmd->cmd_status_drv = MFI_STAT_INVALID_STATUS; | |
1123 | ||
1124 | if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { | |
1125 | dev_err(&instance->pdev->dev, "Failed from %s %d\n", | |
1126 | __func__, __LINE__); | |
1127 | return DCMD_NOT_FIRED; | |
1128 | } | |
1129 | ||
1130 | instance->instancet->issue_dcmd(instance, cmd); | |
1131 | ||
1132 | if (timeout) { | |
1133 | ret = wait_event_timeout(instance->int_cmd_wait_q, | |
1134 | cmd->cmd_status_drv != MFI_STAT_INVALID_STATUS, timeout * HZ); | |
1135 | if (!ret) { | |
1136 | dev_err(&instance->pdev->dev, | |
1137 | "DCMD(opcode: 0x%x) is timed out, func:%s\n", | |
1138 | cmd->frame->dcmd.opcode, __func__); | |
1139 | return DCMD_TIMEOUT; | |
1140 | } | |
1141 | } else | |
1142 | wait_event(instance->int_cmd_wait_q, | |
1143 | cmd->cmd_status_drv != MFI_STAT_INVALID_STATUS); | |
1144 | ||
1145 | return (cmd->cmd_status_drv == MFI_STAT_OK) ? | |
1146 | DCMD_SUCCESS : DCMD_FAILED; | |
1147 | } | |
1148 | ||
1149 | /** | |
1150 | * megasas_issue_blocked_abort_cmd - Aborts previously issued cmd | |
1151 | * @instance: Adapter soft state | |
1152 | * @cmd_to_abort: Previously issued cmd to be aborted | |
1153 | * @timeout: Timeout in seconds | |
1154 | * | |
1155 | * MFI firmware can abort previously issued AEN comamnd (automatic event | |
1156 | * notification). The megasas_issue_blocked_abort_cmd() issues such abort | |
1157 | * cmd and waits for return status. | |
1158 | * Max wait time is MEGASAS_INTERNAL_CMD_WAIT_TIME secs | |
1159 | */ | |
1160 | static int | |
1161 | megasas_issue_blocked_abort_cmd(struct megasas_instance *instance, | |
1162 | struct megasas_cmd *cmd_to_abort, int timeout) | |
1163 | { | |
1164 | struct megasas_cmd *cmd; | |
1165 | struct megasas_abort_frame *abort_fr; | |
1166 | int ret = 0; | |
1167 | u32 opcode; | |
1168 | ||
1169 | cmd = megasas_get_cmd(instance); | |
1170 | ||
1171 | if (!cmd) | |
1172 | return -1; | |
1173 | ||
1174 | abort_fr = &cmd->frame->abort; | |
1175 | ||
1176 | /* | |
1177 | * Prepare and issue the abort frame | |
1178 | */ | |
1179 | abort_fr->cmd = MFI_CMD_ABORT; | |
1180 | abort_fr->cmd_status = MFI_STAT_INVALID_STATUS; | |
1181 | abort_fr->flags = cpu_to_le16(0); | |
1182 | abort_fr->abort_context = cpu_to_le32(cmd_to_abort->index); | |
1183 | abort_fr->abort_mfi_phys_addr_lo = | |
1184 | cpu_to_le32(lower_32_bits(cmd_to_abort->frame_phys_addr)); | |
1185 | abort_fr->abort_mfi_phys_addr_hi = | |
1186 | cpu_to_le32(upper_32_bits(cmd_to_abort->frame_phys_addr)); | |
1187 | ||
1188 | cmd->sync_cmd = 1; | |
1189 | cmd->cmd_status_drv = MFI_STAT_INVALID_STATUS; | |
1190 | ||
1191 | if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { | |
1192 | dev_err(&instance->pdev->dev, "Failed from %s %d\n", | |
1193 | __func__, __LINE__); | |
1194 | return DCMD_NOT_FIRED; | |
1195 | } | |
1196 | ||
1197 | instance->instancet->issue_dcmd(instance, cmd); | |
1198 | ||
1199 | if (timeout) { | |
1200 | ret = wait_event_timeout(instance->abort_cmd_wait_q, | |
1201 | cmd->cmd_status_drv != MFI_STAT_INVALID_STATUS, timeout * HZ); | |
1202 | if (!ret) { | |
1203 | opcode = cmd_to_abort->frame->dcmd.opcode; | |
1204 | dev_err(&instance->pdev->dev, | |
1205 | "Abort(to be aborted DCMD opcode: 0x%x) is timed out func:%s\n", | |
1206 | opcode, __func__); | |
1207 | return DCMD_TIMEOUT; | |
1208 | } | |
1209 | } else | |
1210 | wait_event(instance->abort_cmd_wait_q, | |
1211 | cmd->cmd_status_drv != MFI_STAT_INVALID_STATUS); | |
1212 | ||
1213 | cmd->sync_cmd = 0; | |
1214 | ||
1215 | megasas_return_cmd(instance, cmd); | |
1216 | return (cmd->cmd_status_drv == MFI_STAT_OK) ? | |
1217 | DCMD_SUCCESS : DCMD_FAILED; | |
1218 | } | |
1219 | ||
1220 | /** | |
1221 | * megasas_make_sgl32 - Prepares 32-bit SGL | |
1222 | * @instance: Adapter soft state | |
1223 | * @scp: SCSI command from the mid-layer | |
1224 | * @mfi_sgl: SGL to be filled in | |
1225 | * | |
1226 | * If successful, this function returns the number of SG elements. Otherwise, | |
1227 | * it returnes -1. | |
1228 | */ | |
1229 | static int | |
1230 | megasas_make_sgl32(struct megasas_instance *instance, struct scsi_cmnd *scp, | |
1231 | union megasas_sgl *mfi_sgl) | |
1232 | { | |
1233 | int i; | |
1234 | int sge_count; | |
1235 | struct scatterlist *os_sgl; | |
1236 | ||
1237 | sge_count = scsi_dma_map(scp); | |
1238 | BUG_ON(sge_count < 0); | |
1239 | ||
1240 | if (sge_count) { | |
1241 | scsi_for_each_sg(scp, os_sgl, sge_count, i) { | |
1242 | mfi_sgl->sge32[i].length = cpu_to_le32(sg_dma_len(os_sgl)); | |
1243 | mfi_sgl->sge32[i].phys_addr = cpu_to_le32(sg_dma_address(os_sgl)); | |
1244 | } | |
1245 | } | |
1246 | return sge_count; | |
1247 | } | |
1248 | ||
1249 | /** | |
1250 | * megasas_make_sgl64 - Prepares 64-bit SGL | |
1251 | * @instance: Adapter soft state | |
1252 | * @scp: SCSI command from the mid-layer | |
1253 | * @mfi_sgl: SGL to be filled in | |
1254 | * | |
1255 | * If successful, this function returns the number of SG elements. Otherwise, | |
1256 | * it returnes -1. | |
1257 | */ | |
1258 | static int | |
1259 | megasas_make_sgl64(struct megasas_instance *instance, struct scsi_cmnd *scp, | |
1260 | union megasas_sgl *mfi_sgl) | |
1261 | { | |
1262 | int i; | |
1263 | int sge_count; | |
1264 | struct scatterlist *os_sgl; | |
1265 | ||
1266 | sge_count = scsi_dma_map(scp); | |
1267 | BUG_ON(sge_count < 0); | |
1268 | ||
1269 | if (sge_count) { | |
1270 | scsi_for_each_sg(scp, os_sgl, sge_count, i) { | |
1271 | mfi_sgl->sge64[i].length = cpu_to_le32(sg_dma_len(os_sgl)); | |
1272 | mfi_sgl->sge64[i].phys_addr = cpu_to_le64(sg_dma_address(os_sgl)); | |
1273 | } | |
1274 | } | |
1275 | return sge_count; | |
1276 | } | |
1277 | ||
1278 | /** | |
1279 | * megasas_make_sgl_skinny - Prepares IEEE SGL | |
1280 | * @instance: Adapter soft state | |
1281 | * @scp: SCSI command from the mid-layer | |
1282 | * @mfi_sgl: SGL to be filled in | |
1283 | * | |
1284 | * If successful, this function returns the number of SG elements. Otherwise, | |
1285 | * it returnes -1. | |
1286 | */ | |
1287 | static int | |
1288 | megasas_make_sgl_skinny(struct megasas_instance *instance, | |
1289 | struct scsi_cmnd *scp, union megasas_sgl *mfi_sgl) | |
1290 | { | |
1291 | int i; | |
1292 | int sge_count; | |
1293 | struct scatterlist *os_sgl; | |
1294 | ||
1295 | sge_count = scsi_dma_map(scp); | |
1296 | ||
1297 | if (sge_count) { | |
1298 | scsi_for_each_sg(scp, os_sgl, sge_count, i) { | |
1299 | mfi_sgl->sge_skinny[i].length = | |
1300 | cpu_to_le32(sg_dma_len(os_sgl)); | |
1301 | mfi_sgl->sge_skinny[i].phys_addr = | |
1302 | cpu_to_le64(sg_dma_address(os_sgl)); | |
1303 | mfi_sgl->sge_skinny[i].flag = cpu_to_le32(0); | |
1304 | } | |
1305 | } | |
1306 | return sge_count; | |
1307 | } | |
1308 | ||
1309 | /** | |
1310 | * megasas_get_frame_count - Computes the number of frames | |
1311 | * @frame_type : type of frame- io or pthru frame | |
1312 | * @sge_count : number of sg elements | |
1313 | * | |
1314 | * Returns the number of frames required for numnber of sge's (sge_count) | |
1315 | */ | |
1316 | ||
1317 | static u32 megasas_get_frame_count(struct megasas_instance *instance, | |
1318 | u8 sge_count, u8 frame_type) | |
1319 | { | |
1320 | int num_cnt; | |
1321 | int sge_bytes; | |
1322 | u32 sge_sz; | |
1323 | u32 frame_count = 0; | |
1324 | ||
1325 | sge_sz = (IS_DMA64) ? sizeof(struct megasas_sge64) : | |
1326 | sizeof(struct megasas_sge32); | |
1327 | ||
1328 | if (instance->flag_ieee) { | |
1329 | sge_sz = sizeof(struct megasas_sge_skinny); | |
1330 | } | |
1331 | ||
1332 | /* | |
1333 | * Main frame can contain 2 SGEs for 64-bit SGLs and | |
1334 | * 3 SGEs for 32-bit SGLs for ldio & | |
1335 | * 1 SGEs for 64-bit SGLs and | |
1336 | * 2 SGEs for 32-bit SGLs for pthru frame | |
1337 | */ | |
1338 | if (unlikely(frame_type == PTHRU_FRAME)) { | |
1339 | if (instance->flag_ieee == 1) { | |
1340 | num_cnt = sge_count - 1; | |
1341 | } else if (IS_DMA64) | |
1342 | num_cnt = sge_count - 1; | |
1343 | else | |
1344 | num_cnt = sge_count - 2; | |
1345 | } else { | |
1346 | if (instance->flag_ieee == 1) { | |
1347 | num_cnt = sge_count - 1; | |
1348 | } else if (IS_DMA64) | |
1349 | num_cnt = sge_count - 2; | |
1350 | else | |
1351 | num_cnt = sge_count - 3; | |
1352 | } | |
1353 | ||
1354 | if (num_cnt > 0) { | |
1355 | sge_bytes = sge_sz * num_cnt; | |
1356 | ||
1357 | frame_count = (sge_bytes / MEGAMFI_FRAME_SIZE) + | |
1358 | ((sge_bytes % MEGAMFI_FRAME_SIZE) ? 1 : 0) ; | |
1359 | } | |
1360 | /* Main frame */ | |
1361 | frame_count += 1; | |
1362 | ||
1363 | if (frame_count > 7) | |
1364 | frame_count = 8; | |
1365 | return frame_count; | |
1366 | } | |
1367 | ||
1368 | /** | |
1369 | * megasas_build_dcdb - Prepares a direct cdb (DCDB) command | |
1370 | * @instance: Adapter soft state | |
1371 | * @scp: SCSI command | |
1372 | * @cmd: Command to be prepared in | |
1373 | * | |
1374 | * This function prepares CDB commands. These are typcially pass-through | |
1375 | * commands to the devices. | |
1376 | */ | |
1377 | static int | |
1378 | megasas_build_dcdb(struct megasas_instance *instance, struct scsi_cmnd *scp, | |
1379 | struct megasas_cmd *cmd) | |
1380 | { | |
1381 | u32 is_logical; | |
1382 | u32 device_id; | |
1383 | u16 flags = 0; | |
1384 | struct megasas_pthru_frame *pthru; | |
1385 | ||
1386 | is_logical = MEGASAS_IS_LOGICAL(scp->device); | |
1387 | device_id = MEGASAS_DEV_INDEX(scp); | |
1388 | pthru = (struct megasas_pthru_frame *)cmd->frame; | |
1389 | ||
1390 | if (scp->sc_data_direction == DMA_TO_DEVICE) | |
1391 | flags = MFI_FRAME_DIR_WRITE; | |
1392 | else if (scp->sc_data_direction == DMA_FROM_DEVICE) | |
1393 | flags = MFI_FRAME_DIR_READ; | |
1394 | else if (scp->sc_data_direction == DMA_NONE) | |
1395 | flags = MFI_FRAME_DIR_NONE; | |
1396 | ||
1397 | if (instance->flag_ieee == 1) { | |
1398 | flags |= MFI_FRAME_IEEE; | |
1399 | } | |
1400 | ||
1401 | /* | |
1402 | * Prepare the DCDB frame | |
1403 | */ | |
1404 | pthru->cmd = (is_logical) ? MFI_CMD_LD_SCSI_IO : MFI_CMD_PD_SCSI_IO; | |
1405 | pthru->cmd_status = 0x0; | |
1406 | pthru->scsi_status = 0x0; | |
1407 | pthru->target_id = device_id; | |
1408 | pthru->lun = scp->device->lun; | |
1409 | pthru->cdb_len = scp->cmd_len; | |
1410 | pthru->timeout = 0; | |
1411 | pthru->pad_0 = 0; | |
1412 | pthru->flags = cpu_to_le16(flags); | |
1413 | pthru->data_xfer_len = cpu_to_le32(scsi_bufflen(scp)); | |
1414 | ||
1415 | memcpy(pthru->cdb, scp->cmnd, scp->cmd_len); | |
1416 | ||
1417 | /* | |
1418 | * If the command is for the tape device, set the | |
1419 | * pthru timeout to the os layer timeout value. | |
1420 | */ | |
1421 | if (scp->device->type == TYPE_TAPE) { | |
1422 | if ((scp->request->timeout / HZ) > 0xFFFF) | |
1423 | pthru->timeout = cpu_to_le16(0xFFFF); | |
1424 | else | |
1425 | pthru->timeout = cpu_to_le16(scp->request->timeout / HZ); | |
1426 | } | |
1427 | ||
1428 | /* | |
1429 | * Construct SGL | |
1430 | */ | |
1431 | if (instance->flag_ieee == 1) { | |
1432 | pthru->flags |= cpu_to_le16(MFI_FRAME_SGL64); | |
1433 | pthru->sge_count = megasas_make_sgl_skinny(instance, scp, | |
1434 | &pthru->sgl); | |
1435 | } else if (IS_DMA64) { | |
1436 | pthru->flags |= cpu_to_le16(MFI_FRAME_SGL64); | |
1437 | pthru->sge_count = megasas_make_sgl64(instance, scp, | |
1438 | &pthru->sgl); | |
1439 | } else | |
1440 | pthru->sge_count = megasas_make_sgl32(instance, scp, | |
1441 | &pthru->sgl); | |
1442 | ||
1443 | if (pthru->sge_count > instance->max_num_sge) { | |
1444 | dev_err(&instance->pdev->dev, "DCDB too many SGE NUM=%x\n", | |
1445 | pthru->sge_count); | |
1446 | return 0; | |
1447 | } | |
1448 | ||
1449 | /* | |
1450 | * Sense info specific | |
1451 | */ | |
1452 | pthru->sense_len = SCSI_SENSE_BUFFERSIZE; | |
1453 | pthru->sense_buf_phys_addr_hi = | |
1454 | cpu_to_le32(upper_32_bits(cmd->sense_phys_addr)); | |
1455 | pthru->sense_buf_phys_addr_lo = | |
1456 | cpu_to_le32(lower_32_bits(cmd->sense_phys_addr)); | |
1457 | ||
1458 | /* | |
1459 | * Compute the total number of frames this command consumes. FW uses | |
1460 | * this number to pull sufficient number of frames from host memory. | |
1461 | */ | |
1462 | cmd->frame_count = megasas_get_frame_count(instance, pthru->sge_count, | |
1463 | PTHRU_FRAME); | |
1464 | ||
1465 | return cmd->frame_count; | |
1466 | } | |
1467 | ||
1468 | /** | |
1469 | * megasas_build_ldio - Prepares IOs to logical devices | |
1470 | * @instance: Adapter soft state | |
1471 | * @scp: SCSI command | |
1472 | * @cmd: Command to be prepared | |
1473 | * | |
1474 | * Frames (and accompanying SGLs) for regular SCSI IOs use this function. | |
1475 | */ | |
1476 | static int | |
1477 | megasas_build_ldio(struct megasas_instance *instance, struct scsi_cmnd *scp, | |
1478 | struct megasas_cmd *cmd) | |
1479 | { | |
1480 | u32 device_id; | |
1481 | u8 sc = scp->cmnd[0]; | |
1482 | u16 flags = 0; | |
1483 | struct megasas_io_frame *ldio; | |
1484 | ||
1485 | device_id = MEGASAS_DEV_INDEX(scp); | |
1486 | ldio = (struct megasas_io_frame *)cmd->frame; | |
1487 | ||
1488 | if (scp->sc_data_direction == DMA_TO_DEVICE) | |
1489 | flags = MFI_FRAME_DIR_WRITE; | |
1490 | else if (scp->sc_data_direction == DMA_FROM_DEVICE) | |
1491 | flags = MFI_FRAME_DIR_READ; | |
1492 | ||
1493 | if (instance->flag_ieee == 1) { | |
1494 | flags |= MFI_FRAME_IEEE; | |
1495 | } | |
1496 | ||
1497 | /* | |
1498 | * Prepare the Logical IO frame: 2nd bit is zero for all read cmds | |
1499 | */ | |
1500 | ldio->cmd = (sc & 0x02) ? MFI_CMD_LD_WRITE : MFI_CMD_LD_READ; | |
1501 | ldio->cmd_status = 0x0; | |
1502 | ldio->scsi_status = 0x0; | |
1503 | ldio->target_id = device_id; | |
1504 | ldio->timeout = 0; | |
1505 | ldio->reserved_0 = 0; | |
1506 | ldio->pad_0 = 0; | |
1507 | ldio->flags = cpu_to_le16(flags); | |
1508 | ldio->start_lba_hi = 0; | |
1509 | ldio->access_byte = (scp->cmd_len != 6) ? scp->cmnd[1] : 0; | |
1510 | ||
1511 | /* | |
1512 | * 6-byte READ(0x08) or WRITE(0x0A) cdb | |
1513 | */ | |
1514 | if (scp->cmd_len == 6) { | |
1515 | ldio->lba_count = cpu_to_le32((u32) scp->cmnd[4]); | |
1516 | ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[1] << 16) | | |
1517 | ((u32) scp->cmnd[2] << 8) | | |
1518 | (u32) scp->cmnd[3]); | |
1519 | ||
1520 | ldio->start_lba_lo &= cpu_to_le32(0x1FFFFF); | |
1521 | } | |
1522 | ||
1523 | /* | |
1524 | * 10-byte READ(0x28) or WRITE(0x2A) cdb | |
1525 | */ | |
1526 | else if (scp->cmd_len == 10) { | |
1527 | ldio->lba_count = cpu_to_le32((u32) scp->cmnd[8] | | |
1528 | ((u32) scp->cmnd[7] << 8)); | |
1529 | ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[2] << 24) | | |
1530 | ((u32) scp->cmnd[3] << 16) | | |
1531 | ((u32) scp->cmnd[4] << 8) | | |
1532 | (u32) scp->cmnd[5]); | |
1533 | } | |
1534 | ||
1535 | /* | |
1536 | * 12-byte READ(0xA8) or WRITE(0xAA) cdb | |
1537 | */ | |
1538 | else if (scp->cmd_len == 12) { | |
1539 | ldio->lba_count = cpu_to_le32(((u32) scp->cmnd[6] << 24) | | |
1540 | ((u32) scp->cmnd[7] << 16) | | |
1541 | ((u32) scp->cmnd[8] << 8) | | |
1542 | (u32) scp->cmnd[9]); | |
1543 | ||
1544 | ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[2] << 24) | | |
1545 | ((u32) scp->cmnd[3] << 16) | | |
1546 | ((u32) scp->cmnd[4] << 8) | | |
1547 | (u32) scp->cmnd[5]); | |
1548 | } | |
1549 | ||
1550 | /* | |
1551 | * 16-byte READ(0x88) or WRITE(0x8A) cdb | |
1552 | */ | |
1553 | else if (scp->cmd_len == 16) { | |
1554 | ldio->lba_count = cpu_to_le32(((u32) scp->cmnd[10] << 24) | | |
1555 | ((u32) scp->cmnd[11] << 16) | | |
1556 | ((u32) scp->cmnd[12] << 8) | | |
1557 | (u32) scp->cmnd[13]); | |
1558 | ||
1559 | ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[6] << 24) | | |
1560 | ((u32) scp->cmnd[7] << 16) | | |
1561 | ((u32) scp->cmnd[8] << 8) | | |
1562 | (u32) scp->cmnd[9]); | |
1563 | ||
1564 | ldio->start_lba_hi = cpu_to_le32(((u32) scp->cmnd[2] << 24) | | |
1565 | ((u32) scp->cmnd[3] << 16) | | |
1566 | ((u32) scp->cmnd[4] << 8) | | |
1567 | (u32) scp->cmnd[5]); | |
1568 | ||
1569 | } | |
1570 | ||
1571 | /* | |
1572 | * Construct SGL | |
1573 | */ | |
1574 | if (instance->flag_ieee) { | |
1575 | ldio->flags |= cpu_to_le16(MFI_FRAME_SGL64); | |
1576 | ldio->sge_count = megasas_make_sgl_skinny(instance, scp, | |
1577 | &ldio->sgl); | |
1578 | } else if (IS_DMA64) { | |
1579 | ldio->flags |= cpu_to_le16(MFI_FRAME_SGL64); | |
1580 | ldio->sge_count = megasas_make_sgl64(instance, scp, &ldio->sgl); | |
1581 | } else | |
1582 | ldio->sge_count = megasas_make_sgl32(instance, scp, &ldio->sgl); | |
1583 | ||
1584 | if (ldio->sge_count > instance->max_num_sge) { | |
1585 | dev_err(&instance->pdev->dev, "build_ld_io: sge_count = %x\n", | |
1586 | ldio->sge_count); | |
1587 | return 0; | |
1588 | } | |
1589 | ||
1590 | /* | |
1591 | * Sense info specific | |
1592 | */ | |
1593 | ldio->sense_len = SCSI_SENSE_BUFFERSIZE; | |
1594 | ldio->sense_buf_phys_addr_hi = 0; | |
1595 | ldio->sense_buf_phys_addr_lo = cpu_to_le32(cmd->sense_phys_addr); | |
1596 | ||
1597 | /* | |
1598 | * Compute the total number of frames this command consumes. FW uses | |
1599 | * this number to pull sufficient number of frames from host memory. | |
1600 | */ | |
1601 | cmd->frame_count = megasas_get_frame_count(instance, | |
1602 | ldio->sge_count, IO_FRAME); | |
1603 | ||
1604 | return cmd->frame_count; | |
1605 | } | |
1606 | ||
1607 | /** | |
1608 | * megasas_cmd_type - Checks if the cmd is for logical drive/sysPD | |
1609 | * and whether it's RW or non RW | |
1610 | * @scmd: SCSI command | |
1611 | * | |
1612 | */ | |
1613 | inline int megasas_cmd_type(struct scsi_cmnd *cmd) | |
1614 | { | |
1615 | int ret; | |
1616 | ||
1617 | switch (cmd->cmnd[0]) { | |
1618 | case READ_10: | |
1619 | case WRITE_10: | |
1620 | case READ_12: | |
1621 | case WRITE_12: | |
1622 | case READ_6: | |
1623 | case WRITE_6: | |
1624 | case READ_16: | |
1625 | case WRITE_16: | |
1626 | ret = (MEGASAS_IS_LOGICAL(cmd->device)) ? | |
1627 | READ_WRITE_LDIO : READ_WRITE_SYSPDIO; | |
1628 | break; | |
1629 | default: | |
1630 | ret = (MEGASAS_IS_LOGICAL(cmd->device)) ? | |
1631 | NON_READ_WRITE_LDIO : NON_READ_WRITE_SYSPDIO; | |
1632 | } | |
1633 | return ret; | |
1634 | } | |
1635 | ||
1636 | /** | |
1637 | * megasas_dump_pending_frames - Dumps the frame address of all pending cmds | |
1638 | * in FW | |
1639 | * @instance: Adapter soft state | |
1640 | */ | |
1641 | static inline void | |
1642 | megasas_dump_pending_frames(struct megasas_instance *instance) | |
1643 | { | |
1644 | struct megasas_cmd *cmd; | |
1645 | int i,n; | |
1646 | union megasas_sgl *mfi_sgl; | |
1647 | struct megasas_io_frame *ldio; | |
1648 | struct megasas_pthru_frame *pthru; | |
1649 | u32 sgcount; | |
1650 | u16 max_cmd = instance->max_fw_cmds; | |
1651 | ||
1652 | dev_err(&instance->pdev->dev, "[%d]: Dumping Frame Phys Address of all pending cmds in FW\n",instance->host->host_no); | |
1653 | dev_err(&instance->pdev->dev, "[%d]: Total OS Pending cmds : %d\n",instance->host->host_no,atomic_read(&instance->fw_outstanding)); | |
1654 | if (IS_DMA64) | |
1655 | dev_err(&instance->pdev->dev, "[%d]: 64 bit SGLs were sent to FW\n",instance->host->host_no); | |
1656 | else | |
1657 | dev_err(&instance->pdev->dev, "[%d]: 32 bit SGLs were sent to FW\n",instance->host->host_no); | |
1658 | ||
1659 | dev_err(&instance->pdev->dev, "[%d]: Pending OS cmds in FW : \n",instance->host->host_no); | |
1660 | for (i = 0; i < max_cmd; i++) { | |
1661 | cmd = instance->cmd_list[i]; | |
1662 | if (!cmd->scmd) | |
1663 | continue; | |
1664 | dev_err(&instance->pdev->dev, "[%d]: Frame addr :0x%08lx : ",instance->host->host_no,(unsigned long)cmd->frame_phys_addr); | |
1665 | if (megasas_cmd_type(cmd->scmd) == READ_WRITE_LDIO) { | |
1666 | ldio = (struct megasas_io_frame *)cmd->frame; | |
1667 | mfi_sgl = &ldio->sgl; | |
1668 | sgcount = ldio->sge_count; | |
1669 | dev_err(&instance->pdev->dev, "[%d]: frame count : 0x%x, Cmd : 0x%x, Tgt id : 0x%x," | |
1670 | " lba lo : 0x%x, lba_hi : 0x%x, sense_buf addr : 0x%x,sge count : 0x%x\n", | |
1671 | instance->host->host_no, cmd->frame_count, ldio->cmd, ldio->target_id, | |
1672 | le32_to_cpu(ldio->start_lba_lo), le32_to_cpu(ldio->start_lba_hi), | |
1673 | le32_to_cpu(ldio->sense_buf_phys_addr_lo), sgcount); | |
1674 | } else { | |
1675 | pthru = (struct megasas_pthru_frame *) cmd->frame; | |
1676 | mfi_sgl = &pthru->sgl; | |
1677 | sgcount = pthru->sge_count; | |
1678 | dev_err(&instance->pdev->dev, "[%d]: frame count : 0x%x, Cmd : 0x%x, Tgt id : 0x%x, " | |
1679 | "lun : 0x%x, cdb_len : 0x%x, data xfer len : 0x%x, sense_buf addr : 0x%x,sge count : 0x%x\n", | |
1680 | instance->host->host_no, cmd->frame_count, pthru->cmd, pthru->target_id, | |
1681 | pthru->lun, pthru->cdb_len, le32_to_cpu(pthru->data_xfer_len), | |
1682 | le32_to_cpu(pthru->sense_buf_phys_addr_lo), sgcount); | |
1683 | } | |
1684 | if (megasas_dbg_lvl & MEGASAS_DBG_LVL) { | |
1685 | for (n = 0; n < sgcount; n++) { | |
1686 | if (IS_DMA64) | |
1687 | dev_err(&instance->pdev->dev, "sgl len : 0x%x, sgl addr : 0x%llx\n", | |
1688 | le32_to_cpu(mfi_sgl->sge64[n].length), | |
1689 | le64_to_cpu(mfi_sgl->sge64[n].phys_addr)); | |
1690 | else | |
1691 | dev_err(&instance->pdev->dev, "sgl len : 0x%x, sgl addr : 0x%x\n", | |
1692 | le32_to_cpu(mfi_sgl->sge32[n].length), | |
1693 | le32_to_cpu(mfi_sgl->sge32[n].phys_addr)); | |
1694 | } | |
1695 | } | |
1696 | } /*for max_cmd*/ | |
1697 | dev_err(&instance->pdev->dev, "[%d]: Pending Internal cmds in FW : \n",instance->host->host_no); | |
1698 | for (i = 0; i < max_cmd; i++) { | |
1699 | ||
1700 | cmd = instance->cmd_list[i]; | |
1701 | ||
1702 | if (cmd->sync_cmd == 1) | |
1703 | dev_err(&instance->pdev->dev, "0x%08lx : ", (unsigned long)cmd->frame_phys_addr); | |
1704 | } | |
1705 | dev_err(&instance->pdev->dev, "[%d]: Dumping Done\n\n",instance->host->host_no); | |
1706 | } | |
1707 | ||
1708 | u32 | |
1709 | megasas_build_and_issue_cmd(struct megasas_instance *instance, | |
1710 | struct scsi_cmnd *scmd) | |
1711 | { | |
1712 | struct megasas_cmd *cmd; | |
1713 | u32 frame_count; | |
1714 | ||
1715 | cmd = megasas_get_cmd(instance); | |
1716 | if (!cmd) | |
1717 | return SCSI_MLQUEUE_HOST_BUSY; | |
1718 | ||
1719 | /* | |
1720 | * Logical drive command | |
1721 | */ | |
1722 | if (megasas_cmd_type(scmd) == READ_WRITE_LDIO) | |
1723 | frame_count = megasas_build_ldio(instance, scmd, cmd); | |
1724 | else | |
1725 | frame_count = megasas_build_dcdb(instance, scmd, cmd); | |
1726 | ||
1727 | if (!frame_count) | |
1728 | goto out_return_cmd; | |
1729 | ||
1730 | cmd->scmd = scmd; | |
1731 | scmd->SCp.ptr = (char *)cmd; | |
1732 | ||
1733 | /* | |
1734 | * Issue the command to the FW | |
1735 | */ | |
1736 | atomic_inc(&instance->fw_outstanding); | |
1737 | ||
1738 | instance->instancet->fire_cmd(instance, cmd->frame_phys_addr, | |
1739 | cmd->frame_count-1, instance->reg_set); | |
1740 | ||
1741 | return 0; | |
1742 | out_return_cmd: | |
1743 | megasas_return_cmd(instance, cmd); | |
1744 | return SCSI_MLQUEUE_HOST_BUSY; | |
1745 | } | |
1746 | ||
1747 | ||
1748 | /** | |
1749 | * megasas_queue_command - Queue entry point | |
1750 | * @scmd: SCSI command to be queued | |
1751 | * @done: Callback entry point | |
1752 | */ | |
1753 | static int | |
1754 | megasas_queue_command(struct Scsi_Host *shost, struct scsi_cmnd *scmd) | |
1755 | { | |
1756 | struct megasas_instance *instance; | |
1757 | struct MR_PRIV_DEVICE *mr_device_priv_data; | |
1758 | ||
1759 | instance = (struct megasas_instance *) | |
1760 | scmd->device->host->hostdata; | |
1761 | ||
1762 | if (instance->unload == 1) { | |
1763 | scmd->result = DID_NO_CONNECT << 16; | |
1764 | scmd->scsi_done(scmd); | |
1765 | return 0; | |
1766 | } | |
1767 | ||
1768 | if (instance->issuepend_done == 0) | |
1769 | return SCSI_MLQUEUE_HOST_BUSY; | |
1770 | ||
1771 | ||
1772 | /* Check for an mpio path and adjust behavior */ | |
1773 | if (atomic_read(&instance->adprecovery) == MEGASAS_ADPRESET_SM_INFAULT) { | |
1774 | if (megasas_check_mpio_paths(instance, scmd) == | |
1775 | (DID_REQUEUE << 16)) { | |
1776 | return SCSI_MLQUEUE_HOST_BUSY; | |
1777 | } else { | |
1778 | scmd->result = DID_NO_CONNECT << 16; | |
1779 | scmd->scsi_done(scmd); | |
1780 | return 0; | |
1781 | } | |
1782 | } | |
1783 | ||
1784 | if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { | |
1785 | scmd->result = DID_NO_CONNECT << 16; | |
1786 | scmd->scsi_done(scmd); | |
1787 | return 0; | |
1788 | } | |
1789 | ||
1790 | mr_device_priv_data = scmd->device->hostdata; | |
1791 | if (!mr_device_priv_data) { | |
1792 | scmd->result = DID_NO_CONNECT << 16; | |
1793 | scmd->scsi_done(scmd); | |
1794 | return 0; | |
1795 | } | |
1796 | ||
1797 | if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) | |
1798 | return SCSI_MLQUEUE_HOST_BUSY; | |
1799 | ||
1800 | if (mr_device_priv_data->tm_busy) | |
1801 | return SCSI_MLQUEUE_DEVICE_BUSY; | |
1802 | ||
1803 | ||
1804 | scmd->result = 0; | |
1805 | ||
1806 | if (MEGASAS_IS_LOGICAL(scmd->device) && | |
1807 | (scmd->device->id >= instance->fw_supported_vd_count || | |
1808 | scmd->device->lun)) { | |
1809 | scmd->result = DID_BAD_TARGET << 16; | |
1810 | goto out_done; | |
1811 | } | |
1812 | ||
1813 | if ((scmd->cmnd[0] == SYNCHRONIZE_CACHE) && | |
1814 | MEGASAS_IS_LOGICAL(scmd->device) && | |
1815 | (!instance->fw_sync_cache_support)) { | |
1816 | scmd->result = DID_OK << 16; | |
1817 | goto out_done; | |
1818 | } | |
1819 | ||
1820 | return instance->instancet->build_and_issue_cmd(instance, scmd); | |
1821 | ||
1822 | out_done: | |
1823 | scmd->scsi_done(scmd); | |
1824 | return 0; | |
1825 | } | |
1826 | ||
1827 | static struct megasas_instance *megasas_lookup_instance(u16 host_no) | |
1828 | { | |
1829 | int i; | |
1830 | ||
1831 | for (i = 0; i < megasas_mgmt_info.max_index; i++) { | |
1832 | ||
1833 | if ((megasas_mgmt_info.instance[i]) && | |
1834 | (megasas_mgmt_info.instance[i]->host->host_no == host_no)) | |
1835 | return megasas_mgmt_info.instance[i]; | |
1836 | } | |
1837 | ||
1838 | return NULL; | |
1839 | } | |
1840 | ||
1841 | /* | |
1842 | * megasas_set_dynamic_target_properties - | |
1843 | * Device property set by driver may not be static and it is required to be | |
1844 | * updated after OCR | |
1845 | * | |
1846 | * set tm_capable. | |
1847 | * set dma alignment (only for eedp protection enable vd). | |
1848 | * | |
1849 | * @sdev: OS provided scsi device | |
1850 | * | |
1851 | * Returns void | |
1852 | */ | |
1853 | void megasas_set_dynamic_target_properties(struct scsi_device *sdev, | |
1854 | bool is_target_prop) | |
1855 | { | |
1856 | u16 pd_index = 0, ld; | |
1857 | u32 device_id; | |
1858 | struct megasas_instance *instance; | |
1859 | struct fusion_context *fusion; | |
1860 | struct MR_PRIV_DEVICE *mr_device_priv_data; | |
1861 | struct MR_PD_CFG_SEQ_NUM_SYNC *pd_sync; | |
1862 | struct MR_LD_RAID *raid; | |
1863 | struct MR_DRV_RAID_MAP_ALL *local_map_ptr; | |
1864 | ||
1865 | instance = megasas_lookup_instance(sdev->host->host_no); | |
1866 | fusion = instance->ctrl_context; | |
1867 | mr_device_priv_data = sdev->hostdata; | |
1868 | ||
1869 | if (!fusion || !mr_device_priv_data) | |
1870 | return; | |
1871 | ||
1872 | if (MEGASAS_IS_LOGICAL(sdev)) { | |
1873 | device_id = ((sdev->channel % 2) * MEGASAS_MAX_DEV_PER_CHANNEL) | |
1874 | + sdev->id; | |
1875 | local_map_ptr = fusion->ld_drv_map[(instance->map_id & 1)]; | |
1876 | ld = MR_TargetIdToLdGet(device_id, local_map_ptr); | |
1877 | if (ld >= instance->fw_supported_vd_count) | |
1878 | return; | |
1879 | raid = MR_LdRaidGet(ld, local_map_ptr); | |
1880 | ||
1881 | if (raid->capability.ldPiMode == MR_PROT_INFO_TYPE_CONTROLLER) | |
1882 | blk_queue_update_dma_alignment(sdev->request_queue, 0x7); | |
1883 | ||
1884 | mr_device_priv_data->is_tm_capable = | |
1885 | raid->capability.tmCapable; | |
1886 | } else if (instance->use_seqnum_jbod_fp) { | |
1887 | pd_index = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + | |
1888 | sdev->id; | |
1889 | pd_sync = (void *)fusion->pd_seq_sync | |
1890 | [(instance->pd_seq_map_id - 1) & 1]; | |
1891 | mr_device_priv_data->is_tm_capable = | |
1892 | pd_sync->seq[pd_index].capability.tmCapable; | |
1893 | } | |
1894 | ||
1895 | if (is_target_prop && instance->tgt_prop->reset_tmo) { | |
1896 | /* | |
1897 | * If FW provides a target reset timeout value, driver will use | |
1898 | * it. If not set, fallback to default values. | |
1899 | */ | |
1900 | mr_device_priv_data->target_reset_tmo = | |
1901 | min_t(u8, instance->max_reset_tmo, | |
1902 | instance->tgt_prop->reset_tmo); | |
1903 | mr_device_priv_data->task_abort_tmo = instance->task_abort_tmo; | |
1904 | } else { | |
1905 | mr_device_priv_data->target_reset_tmo = | |
1906 | MEGASAS_DEFAULT_TM_TIMEOUT; | |
1907 | mr_device_priv_data->task_abort_tmo = | |
1908 | MEGASAS_DEFAULT_TM_TIMEOUT; | |
1909 | } | |
1910 | } | |
1911 | ||
1912 | /* | |
1913 | * megasas_set_nvme_device_properties - | |
1914 | * set nomerges=2 | |
1915 | * set virtual page boundary = 4K (current mr_nvme_pg_size is 4K). | |
1916 | * set maximum io transfer = MDTS of NVME device provided by MR firmware. | |
1917 | * | |
1918 | * MR firmware provides value in KB. Caller of this function converts | |
1919 | * kb into bytes. | |
1920 | * | |
1921 | * e.a MDTS=5 means 2^5 * nvme page size. (In case of 4K page size, | |
1922 | * MR firmware provides value 128 as (32 * 4K) = 128K. | |
1923 | * | |
1924 | * @sdev: scsi device | |
1925 | * @max_io_size: maximum io transfer size | |
1926 | * | |
1927 | */ | |
1928 | static inline void | |
1929 | megasas_set_nvme_device_properties(struct scsi_device *sdev, u32 max_io_size) | |
1930 | { | |
1931 | struct megasas_instance *instance; | |
1932 | u32 mr_nvme_pg_size; | |
1933 | ||
1934 | instance = (struct megasas_instance *)sdev->host->hostdata; | |
1935 | mr_nvme_pg_size = max_t(u32, instance->nvme_page_size, | |
1936 | MR_DEFAULT_NVME_PAGE_SIZE); | |
1937 | ||
1938 | blk_queue_max_hw_sectors(sdev->request_queue, (max_io_size / 512)); | |
1939 | ||
1940 | blk_queue_flag_set(QUEUE_FLAG_NOMERGES, sdev->request_queue); | |
1941 | blk_queue_virt_boundary(sdev->request_queue, mr_nvme_pg_size - 1); | |
1942 | } | |
1943 | ||
1944 | ||
1945 | /* | |
1946 | * megasas_set_static_target_properties - | |
1947 | * Device property set by driver are static and it is not required to be | |
1948 | * updated after OCR. | |
1949 | * | |
1950 | * set io timeout | |
1951 | * set device queue depth | |
1952 | * set nvme device properties. see - megasas_set_nvme_device_properties | |
1953 | * | |
1954 | * @sdev: scsi device | |
1955 | * @is_target_prop true, if fw provided target properties. | |
1956 | */ | |
1957 | static void megasas_set_static_target_properties(struct scsi_device *sdev, | |
1958 | bool is_target_prop) | |
1959 | { | |
1960 | u8 interface_type; | |
1961 | u32 device_qd = MEGASAS_DEFAULT_CMD_PER_LUN; | |
1962 | u32 max_io_size_kb = MR_DEFAULT_NVME_MDTS_KB; | |
1963 | u32 tgt_device_qd; | |
1964 | struct megasas_instance *instance; | |
1965 | struct MR_PRIV_DEVICE *mr_device_priv_data; | |
1966 | ||
1967 | instance = megasas_lookup_instance(sdev->host->host_no); | |
1968 | mr_device_priv_data = sdev->hostdata; | |
1969 | interface_type = mr_device_priv_data->interface_type; | |
1970 | ||
1971 | /* | |
1972 | * The RAID firmware may require extended timeouts. | |
1973 | */ | |
1974 | blk_queue_rq_timeout(sdev->request_queue, scmd_timeout * HZ); | |
1975 | ||
1976 | switch (interface_type) { | |
1977 | case SAS_PD: | |
1978 | device_qd = MEGASAS_SAS_QD; | |
1979 | break; | |
1980 | case SATA_PD: | |
1981 | device_qd = MEGASAS_SATA_QD; | |
1982 | break; | |
1983 | case NVME_PD: | |
1984 | device_qd = MEGASAS_NVME_QD; | |
1985 | break; | |
1986 | } | |
1987 | ||
1988 | if (is_target_prop) { | |
1989 | tgt_device_qd = le32_to_cpu(instance->tgt_prop->device_qdepth); | |
1990 | if (tgt_device_qd && | |
1991 | (tgt_device_qd <= instance->host->can_queue)) | |
1992 | device_qd = tgt_device_qd; | |
1993 | ||
1994 | /* max_io_size_kb will be set to non zero for | |
1995 | * nvme based vd and syspd. | |
1996 | */ | |
1997 | max_io_size_kb = le32_to_cpu(instance->tgt_prop->max_io_size_kb); | |
1998 | } | |
1999 | ||
2000 | if (instance->nvme_page_size && max_io_size_kb) | |
2001 | megasas_set_nvme_device_properties(sdev, (max_io_size_kb << 10)); | |
2002 | ||
2003 | scsi_change_queue_depth(sdev, device_qd); | |
2004 | ||
2005 | } | |
2006 | ||
2007 | ||
2008 | static int megasas_slave_configure(struct scsi_device *sdev) | |
2009 | { | |
2010 | u16 pd_index = 0; | |
2011 | struct megasas_instance *instance; | |
2012 | int ret_target_prop = DCMD_FAILED; | |
2013 | bool is_target_prop = false; | |
2014 | ||
2015 | instance = megasas_lookup_instance(sdev->host->host_no); | |
2016 | if (instance->pd_list_not_supported) { | |
2017 | if (!MEGASAS_IS_LOGICAL(sdev) && sdev->type == TYPE_DISK) { | |
2018 | pd_index = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + | |
2019 | sdev->id; | |
2020 | if (instance->pd_list[pd_index].driveState != | |
2021 | MR_PD_STATE_SYSTEM) | |
2022 | return -ENXIO; | |
2023 | } | |
2024 | } | |
2025 | ||
2026 | mutex_lock(&instance->reset_mutex); | |
2027 | /* Send DCMD to Firmware and cache the information */ | |
2028 | if ((instance->pd_info) && !MEGASAS_IS_LOGICAL(sdev)) | |
2029 | megasas_get_pd_info(instance, sdev); | |
2030 | ||
2031 | /* Some ventura firmware may not have instance->nvme_page_size set. | |
2032 | * Do not send MR_DCMD_DRV_GET_TARGET_PROP | |
2033 | */ | |
2034 | if ((instance->tgt_prop) && (instance->nvme_page_size)) | |
2035 | ret_target_prop = megasas_get_target_prop(instance, sdev); | |
2036 | ||
2037 | is_target_prop = (ret_target_prop == DCMD_SUCCESS) ? true : false; | |
2038 | megasas_set_static_target_properties(sdev, is_target_prop); | |
2039 | ||
2040 | /* This sdev property may change post OCR */ | |
2041 | megasas_set_dynamic_target_properties(sdev, is_target_prop); | |
2042 | ||
2043 | mutex_unlock(&instance->reset_mutex); | |
2044 | ||
2045 | return 0; | |
2046 | } | |
2047 | ||
2048 | static int megasas_slave_alloc(struct scsi_device *sdev) | |
2049 | { | |
2050 | u16 pd_index = 0; | |
2051 | struct megasas_instance *instance ; | |
2052 | struct MR_PRIV_DEVICE *mr_device_priv_data; | |
2053 | ||
2054 | instance = megasas_lookup_instance(sdev->host->host_no); | |
2055 | if (!MEGASAS_IS_LOGICAL(sdev)) { | |
2056 | /* | |
2057 | * Open the OS scan to the SYSTEM PD | |
2058 | */ | |
2059 | pd_index = | |
2060 | (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + | |
2061 | sdev->id; | |
2062 | if ((instance->pd_list_not_supported || | |
2063 | instance->pd_list[pd_index].driveState == | |
2064 | MR_PD_STATE_SYSTEM)) { | |
2065 | goto scan_target; | |
2066 | } | |
2067 | return -ENXIO; | |
2068 | } | |
2069 | ||
2070 | scan_target: | |
2071 | mr_device_priv_data = kzalloc(sizeof(*mr_device_priv_data), | |
2072 | GFP_KERNEL); | |
2073 | if (!mr_device_priv_data) | |
2074 | return -ENOMEM; | |
2075 | sdev->hostdata = mr_device_priv_data; | |
2076 | ||
2077 | atomic_set(&mr_device_priv_data->r1_ldio_hint, | |
2078 | instance->r1_ldio_hint_default); | |
2079 | return 0; | |
2080 | } | |
2081 | ||
2082 | static void megasas_slave_destroy(struct scsi_device *sdev) | |
2083 | { | |
2084 | kfree(sdev->hostdata); | |
2085 | sdev->hostdata = NULL; | |
2086 | } | |
2087 | ||
2088 | /* | |
2089 | * megasas_complete_outstanding_ioctls - Complete outstanding ioctls after a | |
2090 | * kill adapter | |
2091 | * @instance: Adapter soft state | |
2092 | * | |
2093 | */ | |
2094 | static void megasas_complete_outstanding_ioctls(struct megasas_instance *instance) | |
2095 | { | |
2096 | int i; | |
2097 | struct megasas_cmd *cmd_mfi; | |
2098 | struct megasas_cmd_fusion *cmd_fusion; | |
2099 | struct fusion_context *fusion = instance->ctrl_context; | |
2100 | ||
2101 | /* Find all outstanding ioctls */ | |
2102 | if (fusion) { | |
2103 | for (i = 0; i < instance->max_fw_cmds; i++) { | |
2104 | cmd_fusion = fusion->cmd_list[i]; | |
2105 | if (cmd_fusion->sync_cmd_idx != (u32)ULONG_MAX) { | |
2106 | cmd_mfi = instance->cmd_list[cmd_fusion->sync_cmd_idx]; | |
2107 | if (cmd_mfi->sync_cmd && | |
2108 | (cmd_mfi->frame->hdr.cmd != MFI_CMD_ABORT)) { | |
2109 | cmd_mfi->frame->hdr.cmd_status = | |
2110 | MFI_STAT_WRONG_STATE; | |
2111 | megasas_complete_cmd(instance, | |
2112 | cmd_mfi, DID_OK); | |
2113 | } | |
2114 | } | |
2115 | } | |
2116 | } else { | |
2117 | for (i = 0; i < instance->max_fw_cmds; i++) { | |
2118 | cmd_mfi = instance->cmd_list[i]; | |
2119 | if (cmd_mfi->sync_cmd && cmd_mfi->frame->hdr.cmd != | |
2120 | MFI_CMD_ABORT) | |
2121 | megasas_complete_cmd(instance, cmd_mfi, DID_OK); | |
2122 | } | |
2123 | } | |
2124 | } | |
2125 | ||
2126 | ||
2127 | void megaraid_sas_kill_hba(struct megasas_instance *instance) | |
2128 | { | |
2129 | /* Set critical error to block I/O & ioctls in case caller didn't */ | |
2130 | atomic_set(&instance->adprecovery, MEGASAS_HW_CRITICAL_ERROR); | |
2131 | /* Wait 1 second to ensure IO or ioctls in build have posted */ | |
2132 | msleep(1000); | |
2133 | if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) || | |
2134 | (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY) || | |
2135 | (instance->adapter_type != MFI_SERIES)) { | |
2136 | if (!instance->requestorId) { | |
2137 | writel(MFI_STOP_ADP, &instance->reg_set->doorbell); | |
2138 | /* Flush */ | |
2139 | readl(&instance->reg_set->doorbell); | |
2140 | } | |
2141 | if (instance->requestorId && instance->peerIsPresent) | |
2142 | memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS); | |
2143 | } else { | |
2144 | writel(MFI_STOP_ADP, | |
2145 | &instance->reg_set->inbound_doorbell); | |
2146 | } | |
2147 | /* Complete outstanding ioctls when adapter is killed */ | |
2148 | megasas_complete_outstanding_ioctls(instance); | |
2149 | } | |
2150 | ||
2151 | /** | |
2152 | * megasas_check_and_restore_queue_depth - Check if queue depth needs to be | |
2153 | * restored to max value | |
2154 | * @instance: Adapter soft state | |
2155 | * | |
2156 | */ | |
2157 | void | |
2158 | megasas_check_and_restore_queue_depth(struct megasas_instance *instance) | |
2159 | { | |
2160 | unsigned long flags; | |
2161 | ||
2162 | if (instance->flag & MEGASAS_FW_BUSY | |
2163 | && time_after(jiffies, instance->last_time + 5 * HZ) | |
2164 | && atomic_read(&instance->fw_outstanding) < | |
2165 | instance->throttlequeuedepth + 1) { | |
2166 | ||
2167 | spin_lock_irqsave(instance->host->host_lock, flags); | |
2168 | instance->flag &= ~MEGASAS_FW_BUSY; | |
2169 | ||
2170 | instance->host->can_queue = instance->cur_can_queue; | |
2171 | spin_unlock_irqrestore(instance->host->host_lock, flags); | |
2172 | } | |
2173 | } | |
2174 | ||
2175 | /** | |
2176 | * megasas_complete_cmd_dpc - Returns FW's controller structure | |
2177 | * @instance_addr: Address of adapter soft state | |
2178 | * | |
2179 | * Tasklet to complete cmds | |
2180 | */ | |
2181 | static void megasas_complete_cmd_dpc(unsigned long instance_addr) | |
2182 | { | |
2183 | u32 producer; | |
2184 | u32 consumer; | |
2185 | u32 context; | |
2186 | struct megasas_cmd *cmd; | |
2187 | struct megasas_instance *instance = | |
2188 | (struct megasas_instance *)instance_addr; | |
2189 | unsigned long flags; | |
2190 | ||
2191 | /* If we have already declared adapter dead, donot complete cmds */ | |
2192 | if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) | |
2193 | return; | |
2194 | ||
2195 | spin_lock_irqsave(&instance->completion_lock, flags); | |
2196 | ||
2197 | producer = le32_to_cpu(*instance->producer); | |
2198 | consumer = le32_to_cpu(*instance->consumer); | |
2199 | ||
2200 | while (consumer != producer) { | |
2201 | context = le32_to_cpu(instance->reply_queue[consumer]); | |
2202 | if (context >= instance->max_fw_cmds) { | |
2203 | dev_err(&instance->pdev->dev, "Unexpected context value %x\n", | |
2204 | context); | |
2205 | BUG(); | |
2206 | } | |
2207 | ||
2208 | cmd = instance->cmd_list[context]; | |
2209 | ||
2210 | megasas_complete_cmd(instance, cmd, DID_OK); | |
2211 | ||
2212 | consumer++; | |
2213 | if (consumer == (instance->max_fw_cmds + 1)) { | |
2214 | consumer = 0; | |
2215 | } | |
2216 | } | |
2217 | ||
2218 | *instance->consumer = cpu_to_le32(producer); | |
2219 | ||
2220 | spin_unlock_irqrestore(&instance->completion_lock, flags); | |
2221 | ||
2222 | /* | |
2223 | * Check if we can restore can_queue | |
2224 | */ | |
2225 | megasas_check_and_restore_queue_depth(instance); | |
2226 | } | |
2227 | ||
2228 | static void megasas_sriov_heartbeat_handler(struct timer_list *t); | |
2229 | ||
2230 | /** | |
2231 | * megasas_start_timer - Initializes sriov heartbeat timer object | |
2232 | * @instance: Adapter soft state | |
2233 | * | |
2234 | */ | |
2235 | void megasas_start_timer(struct megasas_instance *instance) | |
2236 | { | |
2237 | struct timer_list *timer = &instance->sriov_heartbeat_timer; | |
2238 | ||
2239 | timer_setup(timer, megasas_sriov_heartbeat_handler, 0); | |
2240 | timer->expires = jiffies + MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF; | |
2241 | add_timer(timer); | |
2242 | } | |
2243 | ||
2244 | static void | |
2245 | megasas_internal_reset_defer_cmds(struct megasas_instance *instance); | |
2246 | ||
2247 | static void | |
2248 | process_fw_state_change_wq(struct work_struct *work); | |
2249 | ||
2250 | static void megasas_do_ocr(struct megasas_instance *instance) | |
2251 | { | |
2252 | if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS1064R) || | |
2253 | (instance->pdev->device == PCI_DEVICE_ID_DELL_PERC5) || | |
2254 | (instance->pdev->device == PCI_DEVICE_ID_LSI_VERDE_ZCR)) { | |
2255 | *instance->consumer = cpu_to_le32(MEGASAS_ADPRESET_INPROG_SIGN); | |
2256 | } | |
2257 | instance->instancet->disable_intr(instance); | |
2258 | atomic_set(&instance->adprecovery, MEGASAS_ADPRESET_SM_INFAULT); | |
2259 | instance->issuepend_done = 0; | |
2260 | ||
2261 | atomic_set(&instance->fw_outstanding, 0); | |
2262 | megasas_internal_reset_defer_cmds(instance); | |
2263 | process_fw_state_change_wq(&instance->work_init); | |
2264 | } | |
2265 | ||
2266 | static int megasas_get_ld_vf_affiliation_111(struct megasas_instance *instance, | |
2267 | int initial) | |
2268 | { | |
2269 | struct megasas_cmd *cmd; | |
2270 | struct megasas_dcmd_frame *dcmd; | |
2271 | struct MR_LD_VF_AFFILIATION_111 *new_affiliation_111 = NULL; | |
2272 | dma_addr_t new_affiliation_111_h; | |
2273 | int ld, retval = 0; | |
2274 | u8 thisVf; | |
2275 | ||
2276 | cmd = megasas_get_cmd(instance); | |
2277 | ||
2278 | if (!cmd) { | |
2279 | dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_vf_affiliation_111:" | |
2280 | "Failed to get cmd for scsi%d\n", | |
2281 | instance->host->host_no); | |
2282 | return -ENOMEM; | |
2283 | } | |
2284 | ||
2285 | dcmd = &cmd->frame->dcmd; | |
2286 | ||
2287 | if (!instance->vf_affiliation_111) { | |
2288 | dev_warn(&instance->pdev->dev, "SR-IOV: Couldn't get LD/VF " | |
2289 | "affiliation for scsi%d\n", instance->host->host_no); | |
2290 | megasas_return_cmd(instance, cmd); | |
2291 | return -ENOMEM; | |
2292 | } | |
2293 | ||
2294 | if (initial) | |
2295 | memset(instance->vf_affiliation_111, 0, | |
2296 | sizeof(struct MR_LD_VF_AFFILIATION_111)); | |
2297 | else { | |
2298 | new_affiliation_111 = | |
2299 | dma_alloc_coherent(&instance->pdev->dev, | |
2300 | sizeof(struct MR_LD_VF_AFFILIATION_111), | |
2301 | &new_affiliation_111_h, GFP_KERNEL); | |
2302 | if (!new_affiliation_111) { | |
2303 | dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate " | |
2304 | "memory for new affiliation for scsi%d\n", | |
2305 | instance->host->host_no); | |
2306 | megasas_return_cmd(instance, cmd); | |
2307 | return -ENOMEM; | |
2308 | } | |
2309 | } | |
2310 | ||
2311 | memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); | |
2312 | ||
2313 | dcmd->cmd = MFI_CMD_DCMD; | |
2314 | dcmd->cmd_status = MFI_STAT_INVALID_STATUS; | |
2315 | dcmd->sge_count = 1; | |
2316 | dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_BOTH); | |
2317 | dcmd->timeout = 0; | |
2318 | dcmd->pad_0 = 0; | |
2319 | dcmd->data_xfer_len = | |
2320 | cpu_to_le32(sizeof(struct MR_LD_VF_AFFILIATION_111)); | |
2321 | dcmd->opcode = cpu_to_le32(MR_DCMD_LD_VF_MAP_GET_ALL_LDS_111); | |
2322 | ||
2323 | if (initial) | |
2324 | dcmd->sgl.sge32[0].phys_addr = | |
2325 | cpu_to_le32(instance->vf_affiliation_111_h); | |
2326 | else | |
2327 | dcmd->sgl.sge32[0].phys_addr = | |
2328 | cpu_to_le32(new_affiliation_111_h); | |
2329 | ||
2330 | dcmd->sgl.sge32[0].length = cpu_to_le32( | |
2331 | sizeof(struct MR_LD_VF_AFFILIATION_111)); | |
2332 | ||
2333 | dev_warn(&instance->pdev->dev, "SR-IOV: Getting LD/VF affiliation for " | |
2334 | "scsi%d\n", instance->host->host_no); | |
2335 | ||
2336 | if (megasas_issue_blocked_cmd(instance, cmd, 0) != DCMD_SUCCESS) { | |
2337 | dev_warn(&instance->pdev->dev, "SR-IOV: LD/VF affiliation DCMD" | |
2338 | " failed with status 0x%x for scsi%d\n", | |
2339 | dcmd->cmd_status, instance->host->host_no); | |
2340 | retval = 1; /* Do a scan if we couldn't get affiliation */ | |
2341 | goto out; | |
2342 | } | |
2343 | ||
2344 | if (!initial) { | |
2345 | thisVf = new_affiliation_111->thisVf; | |
2346 | for (ld = 0 ; ld < new_affiliation_111->vdCount; ld++) | |
2347 | if (instance->vf_affiliation_111->map[ld].policy[thisVf] != | |
2348 | new_affiliation_111->map[ld].policy[thisVf]) { | |
2349 | dev_warn(&instance->pdev->dev, "SR-IOV: " | |
2350 | "Got new LD/VF affiliation for scsi%d\n", | |
2351 | instance->host->host_no); | |
2352 | memcpy(instance->vf_affiliation_111, | |
2353 | new_affiliation_111, | |
2354 | sizeof(struct MR_LD_VF_AFFILIATION_111)); | |
2355 | retval = 1; | |
2356 | goto out; | |
2357 | } | |
2358 | } | |
2359 | out: | |
2360 | if (new_affiliation_111) { | |
2361 | dma_free_coherent(&instance->pdev->dev, | |
2362 | sizeof(struct MR_LD_VF_AFFILIATION_111), | |
2363 | new_affiliation_111, | |
2364 | new_affiliation_111_h); | |
2365 | } | |
2366 | ||
2367 | megasas_return_cmd(instance, cmd); | |
2368 | ||
2369 | return retval; | |
2370 | } | |
2371 | ||
2372 | static int megasas_get_ld_vf_affiliation_12(struct megasas_instance *instance, | |
2373 | int initial) | |
2374 | { | |
2375 | struct megasas_cmd *cmd; | |
2376 | struct megasas_dcmd_frame *dcmd; | |
2377 | struct MR_LD_VF_AFFILIATION *new_affiliation = NULL; | |
2378 | struct MR_LD_VF_MAP *newmap = NULL, *savedmap = NULL; | |
2379 | dma_addr_t new_affiliation_h; | |
2380 | int i, j, retval = 0, found = 0, doscan = 0; | |
2381 | u8 thisVf; | |
2382 | ||
2383 | cmd = megasas_get_cmd(instance); | |
2384 | ||
2385 | if (!cmd) { | |
2386 | dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_vf_affiliation12: " | |
2387 | "Failed to get cmd for scsi%d\n", | |
2388 | instance->host->host_no); | |
2389 | return -ENOMEM; | |
2390 | } | |
2391 | ||
2392 | dcmd = &cmd->frame->dcmd; | |
2393 | ||
2394 | if (!instance->vf_affiliation) { | |
2395 | dev_warn(&instance->pdev->dev, "SR-IOV: Couldn't get LD/VF " | |
2396 | "affiliation for scsi%d\n", instance->host->host_no); | |
2397 | megasas_return_cmd(instance, cmd); | |
2398 | return -ENOMEM; | |
2399 | } | |
2400 | ||
2401 | if (initial) | |
2402 | memset(instance->vf_affiliation, 0, (MAX_LOGICAL_DRIVES + 1) * | |
2403 | sizeof(struct MR_LD_VF_AFFILIATION)); | |
2404 | else { | |
2405 | new_affiliation = | |
2406 | dma_alloc_coherent(&instance->pdev->dev, | |
2407 | (MAX_LOGICAL_DRIVES + 1) * sizeof(struct MR_LD_VF_AFFILIATION), | |
2408 | &new_affiliation_h, GFP_KERNEL); | |
2409 | if (!new_affiliation) { | |
2410 | dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate " | |
2411 | "memory for new affiliation for scsi%d\n", | |
2412 | instance->host->host_no); | |
2413 | megasas_return_cmd(instance, cmd); | |
2414 | return -ENOMEM; | |
2415 | } | |
2416 | } | |
2417 | ||
2418 | memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); | |
2419 | ||
2420 | dcmd->cmd = MFI_CMD_DCMD; | |
2421 | dcmd->cmd_status = MFI_STAT_INVALID_STATUS; | |
2422 | dcmd->sge_count = 1; | |
2423 | dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_BOTH); | |
2424 | dcmd->timeout = 0; | |
2425 | dcmd->pad_0 = 0; | |
2426 | dcmd->data_xfer_len = cpu_to_le32((MAX_LOGICAL_DRIVES + 1) * | |
2427 | sizeof(struct MR_LD_VF_AFFILIATION)); | |
2428 | dcmd->opcode = cpu_to_le32(MR_DCMD_LD_VF_MAP_GET_ALL_LDS); | |
2429 | ||
2430 | if (initial) | |
2431 | dcmd->sgl.sge32[0].phys_addr = | |
2432 | cpu_to_le32(instance->vf_affiliation_h); | |
2433 | else | |
2434 | dcmd->sgl.sge32[0].phys_addr = | |
2435 | cpu_to_le32(new_affiliation_h); | |
2436 | ||
2437 | dcmd->sgl.sge32[0].length = cpu_to_le32((MAX_LOGICAL_DRIVES + 1) * | |
2438 | sizeof(struct MR_LD_VF_AFFILIATION)); | |
2439 | ||
2440 | dev_warn(&instance->pdev->dev, "SR-IOV: Getting LD/VF affiliation for " | |
2441 | "scsi%d\n", instance->host->host_no); | |
2442 | ||
2443 | ||
2444 | if (megasas_issue_blocked_cmd(instance, cmd, 0) != DCMD_SUCCESS) { | |
2445 | dev_warn(&instance->pdev->dev, "SR-IOV: LD/VF affiliation DCMD" | |
2446 | " failed with status 0x%x for scsi%d\n", | |
2447 | dcmd->cmd_status, instance->host->host_no); | |
2448 | retval = 1; /* Do a scan if we couldn't get affiliation */ | |
2449 | goto out; | |
2450 | } | |
2451 | ||
2452 | if (!initial) { | |
2453 | if (!new_affiliation->ldCount) { | |
2454 | dev_warn(&instance->pdev->dev, "SR-IOV: Got new LD/VF " | |
2455 | "affiliation for passive path for scsi%d\n", | |
2456 | instance->host->host_no); | |
2457 | retval = 1; | |
2458 | goto out; | |
2459 | } | |
2460 | newmap = new_affiliation->map; | |
2461 | savedmap = instance->vf_affiliation->map; | |
2462 | thisVf = new_affiliation->thisVf; | |
2463 | for (i = 0 ; i < new_affiliation->ldCount; i++) { | |
2464 | found = 0; | |
2465 | for (j = 0; j < instance->vf_affiliation->ldCount; | |
2466 | j++) { | |
2467 | if (newmap->ref.targetId == | |
2468 | savedmap->ref.targetId) { | |
2469 | found = 1; | |
2470 | if (newmap->policy[thisVf] != | |
2471 | savedmap->policy[thisVf]) { | |
2472 | doscan = 1; | |
2473 | goto out; | |
2474 | } | |
2475 | } | |
2476 | savedmap = (struct MR_LD_VF_MAP *) | |
2477 | ((unsigned char *)savedmap + | |
2478 | savedmap->size); | |
2479 | } | |
2480 | if (!found && newmap->policy[thisVf] != | |
2481 | MR_LD_ACCESS_HIDDEN) { | |
2482 | doscan = 1; | |
2483 | goto out; | |
2484 | } | |
2485 | newmap = (struct MR_LD_VF_MAP *) | |
2486 | ((unsigned char *)newmap + newmap->size); | |
2487 | } | |
2488 | ||
2489 | newmap = new_affiliation->map; | |
2490 | savedmap = instance->vf_affiliation->map; | |
2491 | ||
2492 | for (i = 0 ; i < instance->vf_affiliation->ldCount; i++) { | |
2493 | found = 0; | |
2494 | for (j = 0 ; j < new_affiliation->ldCount; j++) { | |
2495 | if (savedmap->ref.targetId == | |
2496 | newmap->ref.targetId) { | |
2497 | found = 1; | |
2498 | if (savedmap->policy[thisVf] != | |
2499 | newmap->policy[thisVf]) { | |
2500 | doscan = 1; | |
2501 | goto out; | |
2502 | } | |
2503 | } | |
2504 | newmap = (struct MR_LD_VF_MAP *) | |
2505 | ((unsigned char *)newmap + | |
2506 | newmap->size); | |
2507 | } | |
2508 | if (!found && savedmap->policy[thisVf] != | |
2509 | MR_LD_ACCESS_HIDDEN) { | |
2510 | doscan = 1; | |
2511 | goto out; | |
2512 | } | |
2513 | savedmap = (struct MR_LD_VF_MAP *) | |
2514 | ((unsigned char *)savedmap + | |
2515 | savedmap->size); | |
2516 | } | |
2517 | } | |
2518 | out: | |
2519 | if (doscan) { | |
2520 | dev_warn(&instance->pdev->dev, "SR-IOV: Got new LD/VF " | |
2521 | "affiliation for scsi%d\n", instance->host->host_no); | |
2522 | memcpy(instance->vf_affiliation, new_affiliation, | |
2523 | new_affiliation->size); | |
2524 | retval = 1; | |
2525 | } | |
2526 | ||
2527 | if (new_affiliation) | |
2528 | dma_free_coherent(&instance->pdev->dev, | |
2529 | (MAX_LOGICAL_DRIVES + 1) * | |
2530 | sizeof(struct MR_LD_VF_AFFILIATION), | |
2531 | new_affiliation, new_affiliation_h); | |
2532 | megasas_return_cmd(instance, cmd); | |
2533 | ||
2534 | return retval; | |
2535 | } | |
2536 | ||
2537 | /* This function will get the current SR-IOV LD/VF affiliation */ | |
2538 | static int megasas_get_ld_vf_affiliation(struct megasas_instance *instance, | |
2539 | int initial) | |
2540 | { | |
2541 | int retval; | |
2542 | ||
2543 | if (instance->PlasmaFW111) | |
2544 | retval = megasas_get_ld_vf_affiliation_111(instance, initial); | |
2545 | else | |
2546 | retval = megasas_get_ld_vf_affiliation_12(instance, initial); | |
2547 | return retval; | |
2548 | } | |
2549 | ||
2550 | /* This function will tell FW to start the SR-IOV heartbeat */ | |
2551 | int megasas_sriov_start_heartbeat(struct megasas_instance *instance, | |
2552 | int initial) | |
2553 | { | |
2554 | struct megasas_cmd *cmd; | |
2555 | struct megasas_dcmd_frame *dcmd; | |
2556 | int retval = 0; | |
2557 | ||
2558 | cmd = megasas_get_cmd(instance); | |
2559 | ||
2560 | if (!cmd) { | |
2561 | dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_sriov_start_heartbeat: " | |
2562 | "Failed to get cmd for scsi%d\n", | |
2563 | instance->host->host_no); | |
2564 | return -ENOMEM; | |
2565 | } | |
2566 | ||
2567 | dcmd = &cmd->frame->dcmd; | |
2568 | ||
2569 | if (initial) { | |
2570 | instance->hb_host_mem = | |
2571 | dma_alloc_coherent(&instance->pdev->dev, | |
2572 | sizeof(struct MR_CTRL_HB_HOST_MEM), | |
2573 | &instance->hb_host_mem_h, | |
2574 | GFP_KERNEL); | |
2575 | if (!instance->hb_host_mem) { | |
2576 | dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate" | |
2577 | " memory for heartbeat host memory for scsi%d\n", | |
2578 | instance->host->host_no); | |
2579 | retval = -ENOMEM; | |
2580 | goto out; | |
2581 | } | |
2582 | } | |
2583 | ||
2584 | memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); | |
2585 | ||
2586 | dcmd->mbox.s[0] = cpu_to_le16(sizeof(struct MR_CTRL_HB_HOST_MEM)); | |
2587 | dcmd->cmd = MFI_CMD_DCMD; | |
2588 | dcmd->cmd_status = MFI_STAT_INVALID_STATUS; | |
2589 | dcmd->sge_count = 1; | |
2590 | dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_BOTH); | |
2591 | dcmd->timeout = 0; | |
2592 | dcmd->pad_0 = 0; | |
2593 | dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_CTRL_HB_HOST_MEM)); | |
2594 | dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_SHARED_HOST_MEM_ALLOC); | |
2595 | ||
2596 | megasas_set_dma_settings(instance, dcmd, instance->hb_host_mem_h, | |
2597 | sizeof(struct MR_CTRL_HB_HOST_MEM)); | |
2598 | ||
2599 | dev_warn(&instance->pdev->dev, "SR-IOV: Starting heartbeat for scsi%d\n", | |
2600 | instance->host->host_no); | |
2601 | ||
2602 | if ((instance->adapter_type != MFI_SERIES) && | |
2603 | !instance->mask_interrupts) | |
2604 | retval = megasas_issue_blocked_cmd(instance, cmd, | |
2605 | MEGASAS_ROUTINE_WAIT_TIME_VF); | |
2606 | else | |
2607 | retval = megasas_issue_polled(instance, cmd); | |
2608 | ||
2609 | if (retval) { | |
2610 | dev_warn(&instance->pdev->dev, "SR-IOV: MR_DCMD_CTRL_SHARED_HOST" | |
2611 | "_MEM_ALLOC DCMD %s for scsi%d\n", | |
2612 | (dcmd->cmd_status == MFI_STAT_INVALID_STATUS) ? | |
2613 | "timed out" : "failed", instance->host->host_no); | |
2614 | retval = 1; | |
2615 | } | |
2616 | ||
2617 | out: | |
2618 | megasas_return_cmd(instance, cmd); | |
2619 | ||
2620 | return retval; | |
2621 | } | |
2622 | ||
2623 | /* Handler for SR-IOV heartbeat */ | |
2624 | static void megasas_sriov_heartbeat_handler(struct timer_list *t) | |
2625 | { | |
2626 | struct megasas_instance *instance = | |
2627 | from_timer(instance, t, sriov_heartbeat_timer); | |
2628 | ||
2629 | if (instance->hb_host_mem->HB.fwCounter != | |
2630 | instance->hb_host_mem->HB.driverCounter) { | |
2631 | instance->hb_host_mem->HB.driverCounter = | |
2632 | instance->hb_host_mem->HB.fwCounter; | |
2633 | mod_timer(&instance->sriov_heartbeat_timer, | |
2634 | jiffies + MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF); | |
2635 | } else { | |
2636 | dev_warn(&instance->pdev->dev, "SR-IOV: Heartbeat never " | |
2637 | "completed for scsi%d\n", instance->host->host_no); | |
2638 | schedule_work(&instance->work_init); | |
2639 | } | |
2640 | } | |
2641 | ||
2642 | /** | |
2643 | * megasas_wait_for_outstanding - Wait for all outstanding cmds | |
2644 | * @instance: Adapter soft state | |
2645 | * | |
2646 | * This function waits for up to MEGASAS_RESET_WAIT_TIME seconds for FW to | |
2647 | * complete all its outstanding commands. Returns error if one or more IOs | |
2648 | * are pending after this time period. It also marks the controller dead. | |
2649 | */ | |
2650 | static int megasas_wait_for_outstanding(struct megasas_instance *instance) | |
2651 | { | |
2652 | int i, sl, outstanding; | |
2653 | u32 reset_index; | |
2654 | u32 wait_time = MEGASAS_RESET_WAIT_TIME; | |
2655 | unsigned long flags; | |
2656 | struct list_head clist_local; | |
2657 | struct megasas_cmd *reset_cmd; | |
2658 | u32 fw_state; | |
2659 | ||
2660 | if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { | |
2661 | dev_info(&instance->pdev->dev, "%s:%d HBA is killed.\n", | |
2662 | __func__, __LINE__); | |
2663 | return FAILED; | |
2664 | } | |
2665 | ||
2666 | if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) { | |
2667 | ||
2668 | INIT_LIST_HEAD(&clist_local); | |
2669 | spin_lock_irqsave(&instance->hba_lock, flags); | |
2670 | list_splice_init(&instance->internal_reset_pending_q, | |
2671 | &clist_local); | |
2672 | spin_unlock_irqrestore(&instance->hba_lock, flags); | |
2673 | ||
2674 | dev_notice(&instance->pdev->dev, "HBA reset wait ...\n"); | |
2675 | for (i = 0; i < wait_time; i++) { | |
2676 | msleep(1000); | |
2677 | if (atomic_read(&instance->adprecovery) == MEGASAS_HBA_OPERATIONAL) | |
2678 | break; | |
2679 | } | |
2680 | ||
2681 | if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) { | |
2682 | dev_notice(&instance->pdev->dev, "reset: Stopping HBA.\n"); | |
2683 | atomic_set(&instance->adprecovery, MEGASAS_HW_CRITICAL_ERROR); | |
2684 | return FAILED; | |
2685 | } | |
2686 | ||
2687 | reset_index = 0; | |
2688 | while (!list_empty(&clist_local)) { | |
2689 | reset_cmd = list_entry((&clist_local)->next, | |
2690 | struct megasas_cmd, list); | |
2691 | list_del_init(&reset_cmd->list); | |
2692 | if (reset_cmd->scmd) { | |
2693 | reset_cmd->scmd->result = DID_REQUEUE << 16; | |
2694 | dev_notice(&instance->pdev->dev, "%d:%p reset [%02x]\n", | |
2695 | reset_index, reset_cmd, | |
2696 | reset_cmd->scmd->cmnd[0]); | |
2697 | ||
2698 | reset_cmd->scmd->scsi_done(reset_cmd->scmd); | |
2699 | megasas_return_cmd(instance, reset_cmd); | |
2700 | } else if (reset_cmd->sync_cmd) { | |
2701 | dev_notice(&instance->pdev->dev, "%p synch cmds" | |
2702 | "reset queue\n", | |
2703 | reset_cmd); | |
2704 | ||
2705 | reset_cmd->cmd_status_drv = MFI_STAT_INVALID_STATUS; | |
2706 | instance->instancet->fire_cmd(instance, | |
2707 | reset_cmd->frame_phys_addr, | |
2708 | 0, instance->reg_set); | |
2709 | } else { | |
2710 | dev_notice(&instance->pdev->dev, "%p unexpected" | |
2711 | "cmds lst\n", | |
2712 | reset_cmd); | |
2713 | } | |
2714 | reset_index++; | |
2715 | } | |
2716 | ||
2717 | return SUCCESS; | |
2718 | } | |
2719 | ||
2720 | for (i = 0; i < resetwaittime; i++) { | |
2721 | outstanding = atomic_read(&instance->fw_outstanding); | |
2722 | ||
2723 | if (!outstanding) | |
2724 | break; | |
2725 | ||
2726 | if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) { | |
2727 | dev_notice(&instance->pdev->dev, "[%2d]waiting for %d " | |
2728 | "commands to complete\n",i,outstanding); | |
2729 | /* | |
2730 | * Call cmd completion routine. Cmd to be | |
2731 | * be completed directly without depending on isr. | |
2732 | */ | |
2733 | megasas_complete_cmd_dpc((unsigned long)instance); | |
2734 | } | |
2735 | ||
2736 | msleep(1000); | |
2737 | } | |
2738 | ||
2739 | i = 0; | |
2740 | outstanding = atomic_read(&instance->fw_outstanding); | |
2741 | fw_state = instance->instancet->read_fw_status_reg(instance) & MFI_STATE_MASK; | |
2742 | ||
2743 | if ((!outstanding && (fw_state == MFI_STATE_OPERATIONAL))) | |
2744 | goto no_outstanding; | |
2745 | ||
2746 | if (instance->disableOnlineCtrlReset) | |
2747 | goto kill_hba_and_failed; | |
2748 | do { | |
2749 | if ((fw_state == MFI_STATE_FAULT) || atomic_read(&instance->fw_outstanding)) { | |
2750 | dev_info(&instance->pdev->dev, | |
2751 | "%s:%d waiting_for_outstanding: before issue OCR. FW state = 0x%x, outstanding 0x%x\n", | |
2752 | __func__, __LINE__, fw_state, atomic_read(&instance->fw_outstanding)); | |
2753 | if (i == 3) | |
2754 | goto kill_hba_and_failed; | |
2755 | megasas_do_ocr(instance); | |
2756 | ||
2757 | if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { | |
2758 | dev_info(&instance->pdev->dev, "%s:%d OCR failed and HBA is killed.\n", | |
2759 | __func__, __LINE__); | |
2760 | return FAILED; | |
2761 | } | |
2762 | dev_info(&instance->pdev->dev, "%s:%d waiting_for_outstanding: after issue OCR.\n", | |
2763 | __func__, __LINE__); | |
2764 | ||
2765 | for (sl = 0; sl < 10; sl++) | |
2766 | msleep(500); | |
2767 | ||
2768 | outstanding = atomic_read(&instance->fw_outstanding); | |
2769 | ||
2770 | fw_state = instance->instancet->read_fw_status_reg(instance) & MFI_STATE_MASK; | |
2771 | if ((!outstanding && (fw_state == MFI_STATE_OPERATIONAL))) | |
2772 | goto no_outstanding; | |
2773 | } | |
2774 | i++; | |
2775 | } while (i <= 3); | |
2776 | ||
2777 | no_outstanding: | |
2778 | ||
2779 | dev_info(&instance->pdev->dev, "%s:%d no more pending commands remain after reset handling.\n", | |
2780 | __func__, __LINE__); | |
2781 | return SUCCESS; | |
2782 | ||
2783 | kill_hba_and_failed: | |
2784 | ||
2785 | /* Reset not supported, kill adapter */ | |
2786 | dev_info(&instance->pdev->dev, "%s:%d killing adapter scsi%d" | |
2787 | " disableOnlineCtrlReset %d fw_outstanding %d \n", | |
2788 | __func__, __LINE__, instance->host->host_no, instance->disableOnlineCtrlReset, | |
2789 | atomic_read(&instance->fw_outstanding)); | |
2790 | megasas_dump_pending_frames(instance); | |
2791 | megaraid_sas_kill_hba(instance); | |
2792 | ||
2793 | return FAILED; | |
2794 | } | |
2795 | ||
2796 | /** | |
2797 | * megasas_generic_reset - Generic reset routine | |
2798 | * @scmd: Mid-layer SCSI command | |
2799 | * | |
2800 | * This routine implements a generic reset handler for device, bus and host | |
2801 | * reset requests. Device, bus and host specific reset handlers can use this | |
2802 | * function after they do their specific tasks. | |
2803 | */ | |
2804 | static int megasas_generic_reset(struct scsi_cmnd *scmd) | |
2805 | { | |
2806 | int ret_val; | |
2807 | struct megasas_instance *instance; | |
2808 | ||
2809 | instance = (struct megasas_instance *)scmd->device->host->hostdata; | |
2810 | ||
2811 | scmd_printk(KERN_NOTICE, scmd, "megasas: RESET cmd=%x retries=%x\n", | |
2812 | scmd->cmnd[0], scmd->retries); | |
2813 | ||
2814 | if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { | |
2815 | dev_err(&instance->pdev->dev, "cannot recover from previous reset failures\n"); | |
2816 | return FAILED; | |
2817 | } | |
2818 | ||
2819 | ret_val = megasas_wait_for_outstanding(instance); | |
2820 | if (ret_val == SUCCESS) | |
2821 | dev_notice(&instance->pdev->dev, "reset successful\n"); | |
2822 | else | |
2823 | dev_err(&instance->pdev->dev, "failed to do reset\n"); | |
2824 | ||
2825 | return ret_val; | |
2826 | } | |
2827 | ||
2828 | /** | |
2829 | * megasas_reset_timer - quiesce the adapter if required | |
2830 | * @scmd: scsi cmnd | |
2831 | * | |
2832 | * Sets the FW busy flag and reduces the host->can_queue if the | |
2833 | * cmd has not been completed within the timeout period. | |
2834 | */ | |
2835 | static enum | |
2836 | blk_eh_timer_return megasas_reset_timer(struct scsi_cmnd *scmd) | |
2837 | { | |
2838 | struct megasas_instance *instance; | |
2839 | unsigned long flags; | |
2840 | ||
2841 | if (time_after(jiffies, scmd->jiffies_at_alloc + | |
2842 | (scmd_timeout * 2) * HZ)) { | |
2843 | return BLK_EH_DONE; | |
2844 | } | |
2845 | ||
2846 | instance = (struct megasas_instance *)scmd->device->host->hostdata; | |
2847 | if (!(instance->flag & MEGASAS_FW_BUSY)) { | |
2848 | /* FW is busy, throttle IO */ | |
2849 | spin_lock_irqsave(instance->host->host_lock, flags); | |
2850 | ||
2851 | instance->host->can_queue = instance->throttlequeuedepth; | |
2852 | instance->last_time = jiffies; | |
2853 | instance->flag |= MEGASAS_FW_BUSY; | |
2854 | ||
2855 | spin_unlock_irqrestore(instance->host->host_lock, flags); | |
2856 | } | |
2857 | return BLK_EH_RESET_TIMER; | |
2858 | } | |
2859 | ||
2860 | /** | |
2861 | * megasas_dump - This function will print hexdump of provided buffer. | |
2862 | * @buf: Buffer to be dumped | |
2863 | * @sz: Size in bytes | |
2864 | * @format: Different formats of dumping e.g. format=n will | |
2865 | * cause only 'n' 32 bit words to be dumped in a single | |
2866 | * line. | |
2867 | */ | |
2868 | inline void | |
2869 | megasas_dump(void *buf, int sz, int format) | |
2870 | { | |
2871 | int i; | |
2872 | __le32 *buf_loc = (__le32 *)buf; | |
2873 | ||
2874 | for (i = 0; i < (sz / sizeof(__le32)); i++) { | |
2875 | if ((i % format) == 0) { | |
2876 | if (i != 0) | |
2877 | printk(KERN_CONT "\n"); | |
2878 | printk(KERN_CONT "%08x: ", (i * 4)); | |
2879 | } | |
2880 | printk(KERN_CONT "%08x ", le32_to_cpu(buf_loc[i])); | |
2881 | } | |
2882 | printk(KERN_CONT "\n"); | |
2883 | } | |
2884 | ||
2885 | /** | |
2886 | * megasas_dump_reg_set - This function will print hexdump of register set | |
2887 | * @buf: Buffer to be dumped | |
2888 | * @sz: Size in bytes | |
2889 | * @format: Different formats of dumping e.g. format=n will | |
2890 | * cause only 'n' 32 bit words to be dumped in a | |
2891 | * single line. | |
2892 | */ | |
2893 | inline void | |
2894 | megasas_dump_reg_set(void __iomem *reg_set) | |
2895 | { | |
2896 | unsigned int i, sz = 256; | |
2897 | u32 __iomem *reg = (u32 __iomem *)reg_set; | |
2898 | ||
2899 | for (i = 0; i < (sz / sizeof(u32)); i++) | |
2900 | printk("%08x: %08x\n", (i * 4), readl(®[i])); | |
2901 | } | |
2902 | ||
2903 | /** | |
2904 | * megasas_dump_fusion_io - This function will print key details | |
2905 | * of SCSI IO | |
2906 | * @scmd: SCSI command pointer of SCSI IO | |
2907 | */ | |
2908 | void | |
2909 | megasas_dump_fusion_io(struct scsi_cmnd *scmd) | |
2910 | { | |
2911 | struct megasas_cmd_fusion *cmd; | |
2912 | union MEGASAS_REQUEST_DESCRIPTOR_UNION *req_desc; | |
2913 | struct megasas_instance *instance; | |
2914 | ||
2915 | cmd = (struct megasas_cmd_fusion *)scmd->SCp.ptr; | |
2916 | instance = (struct megasas_instance *)scmd->device->host->hostdata; | |
2917 | ||
2918 | scmd_printk(KERN_INFO, scmd, | |
2919 | "scmd: (0x%p) retries: 0x%x allowed: 0x%x\n", | |
2920 | scmd, scmd->retries, scmd->allowed); | |
2921 | scsi_print_command(scmd); | |
2922 | ||
2923 | if (cmd) { | |
2924 | req_desc = (union MEGASAS_REQUEST_DESCRIPTOR_UNION *)cmd->request_desc; | |
2925 | scmd_printk(KERN_INFO, scmd, "Request descriptor details:\n"); | |
2926 | scmd_printk(KERN_INFO, scmd, | |
2927 | "RequestFlags:0x%x MSIxIndex:0x%x SMID:0x%x LMID:0x%x DevHandle:0x%x\n", | |
2928 | req_desc->SCSIIO.RequestFlags, | |
2929 | req_desc->SCSIIO.MSIxIndex, req_desc->SCSIIO.SMID, | |
2930 | req_desc->SCSIIO.LMID, req_desc->SCSIIO.DevHandle); | |
2931 | ||
2932 | printk(KERN_INFO "IO request frame:\n"); | |
2933 | megasas_dump(cmd->io_request, | |
2934 | MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE, 8); | |
2935 | printk(KERN_INFO "Chain frame:\n"); | |
2936 | megasas_dump(cmd->sg_frame, | |
2937 | instance->max_chain_frame_sz, 8); | |
2938 | } | |
2939 | ||
2940 | } | |
2941 | ||
2942 | /* | |
2943 | * megasas_dump_sys_regs - This function will dump system registers through | |
2944 | * sysfs. | |
2945 | * @reg_set: Pointer to System register set. | |
2946 | * @buf: Buffer to which output is to be written. | |
2947 | * @return: Number of bytes written to buffer. | |
2948 | */ | |
2949 | static inline ssize_t | |
2950 | megasas_dump_sys_regs(void __iomem *reg_set, char *buf) | |
2951 | { | |
2952 | unsigned int i, sz = 256; | |
2953 | int bytes_wrote = 0; | |
2954 | char *loc = (char *)buf; | |
2955 | u32 __iomem *reg = (u32 __iomem *)reg_set; | |
2956 | ||
2957 | for (i = 0; i < sz / sizeof(u32); i++) { | |
2958 | bytes_wrote += snprintf(loc + bytes_wrote, PAGE_SIZE, | |
2959 | "%08x: %08x\n", (i * 4), | |
2960 | readl(®[i])); | |
2961 | } | |
2962 | return bytes_wrote; | |
2963 | } | |
2964 | ||
2965 | /** | |
2966 | * megasas_reset_bus_host - Bus & host reset handler entry point | |
2967 | */ | |
2968 | static int megasas_reset_bus_host(struct scsi_cmnd *scmd) | |
2969 | { | |
2970 | int ret; | |
2971 | struct megasas_instance *instance; | |
2972 | ||
2973 | instance = (struct megasas_instance *)scmd->device->host->hostdata; | |
2974 | ||
2975 | scmd_printk(KERN_INFO, scmd, | |
2976 | "OCR is requested due to IO timeout!!\n"); | |
2977 | ||
2978 | scmd_printk(KERN_INFO, scmd, | |
2979 | "SCSI host state: %d SCSI host busy: %d FW outstanding: %d\n", | |
2980 | scmd->device->host->shost_state, | |
2981 | scsi_host_busy(scmd->device->host), | |
2982 | atomic_read(&instance->fw_outstanding)); | |
2983 | /* | |
2984 | * First wait for all commands to complete | |
2985 | */ | |
2986 | if (instance->adapter_type == MFI_SERIES) { | |
2987 | ret = megasas_generic_reset(scmd); | |
2988 | } else { | |
2989 | megasas_dump_fusion_io(scmd); | |
2990 | ret = megasas_reset_fusion(scmd->device->host, | |
2991 | SCSIIO_TIMEOUT_OCR); | |
2992 | } | |
2993 | ||
2994 | return ret; | |
2995 | } | |
2996 | ||
2997 | /** | |
2998 | * megasas_task_abort - Issues task abort request to firmware | |
2999 | * (supported only for fusion adapters) | |
3000 | * @scmd: SCSI command pointer | |
3001 | */ | |
3002 | static int megasas_task_abort(struct scsi_cmnd *scmd) | |
3003 | { | |
3004 | int ret; | |
3005 | struct megasas_instance *instance; | |
3006 | ||
3007 | instance = (struct megasas_instance *)scmd->device->host->hostdata; | |
3008 | ||
3009 | if (instance->adapter_type != MFI_SERIES) | |
3010 | ret = megasas_task_abort_fusion(scmd); | |
3011 | else { | |
3012 | sdev_printk(KERN_NOTICE, scmd->device, "TASK ABORT not supported\n"); | |
3013 | ret = FAILED; | |
3014 | } | |
3015 | ||
3016 | return ret; | |
3017 | } | |
3018 | ||
3019 | /** | |
3020 | * megasas_reset_target: Issues target reset request to firmware | |
3021 | * (supported only for fusion adapters) | |
3022 | * @scmd: SCSI command pointer | |
3023 | */ | |
3024 | static int megasas_reset_target(struct scsi_cmnd *scmd) | |
3025 | { | |
3026 | int ret; | |
3027 | struct megasas_instance *instance; | |
3028 | ||
3029 | instance = (struct megasas_instance *)scmd->device->host->hostdata; | |
3030 | ||
3031 | if (instance->adapter_type != MFI_SERIES) | |
3032 | ret = megasas_reset_target_fusion(scmd); | |
3033 | else { | |
3034 | sdev_printk(KERN_NOTICE, scmd->device, "TARGET RESET not supported\n"); | |
3035 | ret = FAILED; | |
3036 | } | |
3037 | ||
3038 | return ret; | |
3039 | } | |
3040 | ||
3041 | /** | |
3042 | * megasas_bios_param - Returns disk geometry for a disk | |
3043 | * @sdev: device handle | |
3044 | * @bdev: block device | |
3045 | * @capacity: drive capacity | |
3046 | * @geom: geometry parameters | |
3047 | */ | |
3048 | static int | |
3049 | megasas_bios_param(struct scsi_device *sdev, struct block_device *bdev, | |
3050 | sector_t capacity, int geom[]) | |
3051 | { | |
3052 | int heads; | |
3053 | int sectors; | |
3054 | sector_t cylinders; | |
3055 | unsigned long tmp; | |
3056 | ||
3057 | /* Default heads (64) & sectors (32) */ | |
3058 | heads = 64; | |
3059 | sectors = 32; | |
3060 | ||
3061 | tmp = heads * sectors; | |
3062 | cylinders = capacity; | |
3063 | ||
3064 | sector_div(cylinders, tmp); | |
3065 | ||
3066 | /* | |
3067 | * Handle extended translation size for logical drives > 1Gb | |
3068 | */ | |
3069 | ||
3070 | if (capacity >= 0x200000) { | |
3071 | heads = 255; | |
3072 | sectors = 63; | |
3073 | tmp = heads*sectors; | |
3074 | cylinders = capacity; | |
3075 | sector_div(cylinders, tmp); | |
3076 | } | |
3077 | ||
3078 | geom[0] = heads; | |
3079 | geom[1] = sectors; | |
3080 | geom[2] = cylinders; | |
3081 | ||
3082 | return 0; | |
3083 | } | |
3084 | ||
3085 | static void megasas_aen_polling(struct work_struct *work); | |
3086 | ||
3087 | /** | |
3088 | * megasas_service_aen - Processes an event notification | |
3089 | * @instance: Adapter soft state | |
3090 | * @cmd: AEN command completed by the ISR | |
3091 | * | |
3092 | * For AEN, driver sends a command down to FW that is held by the FW till an | |
3093 | * event occurs. When an event of interest occurs, FW completes the command | |
3094 | * that it was previously holding. | |
3095 | * | |
3096 | * This routines sends SIGIO signal to processes that have registered with the | |
3097 | * driver for AEN. | |
3098 | */ | |
3099 | static void | |
3100 | megasas_service_aen(struct megasas_instance *instance, struct megasas_cmd *cmd) | |
3101 | { | |
3102 | unsigned long flags; | |
3103 | ||
3104 | /* | |
3105 | * Don't signal app if it is just an aborted previously registered aen | |
3106 | */ | |
3107 | if ((!cmd->abort_aen) && (instance->unload == 0)) { | |
3108 | spin_lock_irqsave(&poll_aen_lock, flags); | |
3109 | megasas_poll_wait_aen = 1; | |
3110 | spin_unlock_irqrestore(&poll_aen_lock, flags); | |
3111 | wake_up(&megasas_poll_wait); | |
3112 | kill_fasync(&megasas_async_queue, SIGIO, POLL_IN); | |
3113 | } | |
3114 | else | |
3115 | cmd->abort_aen = 0; | |
3116 | ||
3117 | instance->aen_cmd = NULL; | |
3118 | ||
3119 | megasas_return_cmd(instance, cmd); | |
3120 | ||
3121 | if ((instance->unload == 0) && | |
3122 | ((instance->issuepend_done == 1))) { | |
3123 | struct megasas_aen_event *ev; | |
3124 | ||
3125 | ev = kzalloc(sizeof(*ev), GFP_ATOMIC); | |
3126 | if (!ev) { | |
3127 | dev_err(&instance->pdev->dev, "megasas_service_aen: out of memory\n"); | |
3128 | } else { | |
3129 | ev->instance = instance; | |
3130 | instance->ev = ev; | |
3131 | INIT_DELAYED_WORK(&ev->hotplug_work, | |
3132 | megasas_aen_polling); | |
3133 | schedule_delayed_work(&ev->hotplug_work, 0); | |
3134 | } | |
3135 | } | |
3136 | } | |
3137 | ||
3138 | static ssize_t | |
3139 | fw_crash_buffer_store(struct device *cdev, | |
3140 | struct device_attribute *attr, const char *buf, size_t count) | |
3141 | { | |
3142 | struct Scsi_Host *shost = class_to_shost(cdev); | |
3143 | struct megasas_instance *instance = | |
3144 | (struct megasas_instance *) shost->hostdata; | |
3145 | int val = 0; | |
3146 | unsigned long flags; | |
3147 | ||
3148 | if (kstrtoint(buf, 0, &val) != 0) | |
3149 | return -EINVAL; | |
3150 | ||
3151 | spin_lock_irqsave(&instance->crashdump_lock, flags); | |
3152 | instance->fw_crash_buffer_offset = val; | |
3153 | spin_unlock_irqrestore(&instance->crashdump_lock, flags); | |
3154 | return strlen(buf); | |
3155 | } | |
3156 | ||
3157 | static ssize_t | |
3158 | fw_crash_buffer_show(struct device *cdev, | |
3159 | struct device_attribute *attr, char *buf) | |
3160 | { | |
3161 | struct Scsi_Host *shost = class_to_shost(cdev); | |
3162 | struct megasas_instance *instance = | |
3163 | (struct megasas_instance *) shost->hostdata; | |
3164 | u32 size; | |
3165 | unsigned long dmachunk = CRASH_DMA_BUF_SIZE; | |
3166 | unsigned long chunk_left_bytes; | |
3167 | unsigned long src_addr; | |
3168 | unsigned long flags; | |
3169 | u32 buff_offset; | |
3170 | ||
3171 | spin_lock_irqsave(&instance->crashdump_lock, flags); | |
3172 | buff_offset = instance->fw_crash_buffer_offset; | |
3173 | if (!instance->crash_dump_buf && | |
3174 | !((instance->fw_crash_state == AVAILABLE) || | |
3175 | (instance->fw_crash_state == COPYING))) { | |
3176 | dev_err(&instance->pdev->dev, | |
3177 | "Firmware crash dump is not available\n"); | |
3178 | spin_unlock_irqrestore(&instance->crashdump_lock, flags); | |
3179 | return -EINVAL; | |
3180 | } | |
3181 | ||
3182 | if (buff_offset > (instance->fw_crash_buffer_size * dmachunk)) { | |
3183 | dev_err(&instance->pdev->dev, | |
3184 | "Firmware crash dump offset is out of range\n"); | |
3185 | spin_unlock_irqrestore(&instance->crashdump_lock, flags); | |
3186 | return 0; | |
3187 | } | |
3188 | ||
3189 | size = (instance->fw_crash_buffer_size * dmachunk) - buff_offset; | |
3190 | chunk_left_bytes = dmachunk - (buff_offset % dmachunk); | |
3191 | size = (size > chunk_left_bytes) ? chunk_left_bytes : size; | |
3192 | size = (size >= PAGE_SIZE) ? (PAGE_SIZE - 1) : size; | |
3193 | ||
3194 | src_addr = (unsigned long)instance->crash_buf[buff_offset / dmachunk] + | |
3195 | (buff_offset % dmachunk); | |
3196 | memcpy(buf, (void *)src_addr, size); | |
3197 | spin_unlock_irqrestore(&instance->crashdump_lock, flags); | |
3198 | ||
3199 | return size; | |
3200 | } | |
3201 | ||
3202 | static ssize_t | |
3203 | fw_crash_buffer_size_show(struct device *cdev, | |
3204 | struct device_attribute *attr, char *buf) | |
3205 | { | |
3206 | struct Scsi_Host *shost = class_to_shost(cdev); | |
3207 | struct megasas_instance *instance = | |
3208 | (struct megasas_instance *) shost->hostdata; | |
3209 | ||
3210 | return snprintf(buf, PAGE_SIZE, "%ld\n", (unsigned long) | |
3211 | ((instance->fw_crash_buffer_size) * 1024 * 1024)/PAGE_SIZE); | |
3212 | } | |
3213 | ||
3214 | static ssize_t | |
3215 | fw_crash_state_store(struct device *cdev, | |
3216 | struct device_attribute *attr, const char *buf, size_t count) | |
3217 | { | |
3218 | struct Scsi_Host *shost = class_to_shost(cdev); | |
3219 | struct megasas_instance *instance = | |
3220 | (struct megasas_instance *) shost->hostdata; | |
3221 | int val = 0; | |
3222 | unsigned long flags; | |
3223 | ||
3224 | if (kstrtoint(buf, 0, &val) != 0) | |
3225 | return -EINVAL; | |
3226 | ||
3227 | if ((val <= AVAILABLE || val > COPY_ERROR)) { | |
3228 | dev_err(&instance->pdev->dev, "application updates invalid " | |
3229 | "firmware crash state\n"); | |
3230 | return -EINVAL; | |
3231 | } | |
3232 | ||
3233 | instance->fw_crash_state = val; | |
3234 | ||
3235 | if ((val == COPIED) || (val == COPY_ERROR)) { | |
3236 | spin_lock_irqsave(&instance->crashdump_lock, flags); | |
3237 | megasas_free_host_crash_buffer(instance); | |
3238 | spin_unlock_irqrestore(&instance->crashdump_lock, flags); | |
3239 | if (val == COPY_ERROR) | |
3240 | dev_info(&instance->pdev->dev, "application failed to " | |
3241 | "copy Firmware crash dump\n"); | |
3242 | else | |
3243 | dev_info(&instance->pdev->dev, "Firmware crash dump " | |
3244 | "copied successfully\n"); | |
3245 | } | |
3246 | return strlen(buf); | |
3247 | } | |
3248 | ||
3249 | static ssize_t | |
3250 | fw_crash_state_show(struct device *cdev, | |
3251 | struct device_attribute *attr, char *buf) | |
3252 | { | |
3253 | struct Scsi_Host *shost = class_to_shost(cdev); | |
3254 | struct megasas_instance *instance = | |
3255 | (struct megasas_instance *) shost->hostdata; | |
3256 | ||
3257 | return snprintf(buf, PAGE_SIZE, "%d\n", instance->fw_crash_state); | |
3258 | } | |
3259 | ||
3260 | static ssize_t | |
3261 | page_size_show(struct device *cdev, | |
3262 | struct device_attribute *attr, char *buf) | |
3263 | { | |
3264 | return snprintf(buf, PAGE_SIZE, "%ld\n", (unsigned long)PAGE_SIZE - 1); | |
3265 | } | |
3266 | ||
3267 | static ssize_t | |
3268 | ldio_outstanding_show(struct device *cdev, struct device_attribute *attr, | |
3269 | char *buf) | |
3270 | { | |
3271 | struct Scsi_Host *shost = class_to_shost(cdev); | |
3272 | struct megasas_instance *instance = (struct megasas_instance *)shost->hostdata; | |
3273 | ||
3274 | return snprintf(buf, PAGE_SIZE, "%d\n", atomic_read(&instance->ldio_outstanding)); | |
3275 | } | |
3276 | ||
3277 | static ssize_t | |
3278 | fw_cmds_outstanding_show(struct device *cdev, | |
3279 | struct device_attribute *attr, char *buf) | |
3280 | { | |
3281 | struct Scsi_Host *shost = class_to_shost(cdev); | |
3282 | struct megasas_instance *instance = (struct megasas_instance *)shost->hostdata; | |
3283 | ||
3284 | return snprintf(buf, PAGE_SIZE, "%d\n", atomic_read(&instance->fw_outstanding)); | |
3285 | } | |
3286 | ||
3287 | static ssize_t | |
3288 | dump_system_regs_show(struct device *cdev, | |
3289 | struct device_attribute *attr, char *buf) | |
3290 | { | |
3291 | struct Scsi_Host *shost = class_to_shost(cdev); | |
3292 | struct megasas_instance *instance = | |
3293 | (struct megasas_instance *)shost->hostdata; | |
3294 | ||
3295 | return megasas_dump_sys_regs(instance->reg_set, buf); | |
3296 | } | |
3297 | ||
3298 | static ssize_t | |
3299 | raid_map_id_show(struct device *cdev, struct device_attribute *attr, | |
3300 | char *buf) | |
3301 | { | |
3302 | struct Scsi_Host *shost = class_to_shost(cdev); | |
3303 | struct megasas_instance *instance = | |
3304 | (struct megasas_instance *)shost->hostdata; | |
3305 | ||
3306 | return snprintf(buf, PAGE_SIZE, "%ld\n", | |
3307 | (unsigned long)instance->map_id); | |
3308 | } | |
3309 | ||
3310 | static DEVICE_ATTR_RW(fw_crash_buffer); | |
3311 | static DEVICE_ATTR_RO(fw_crash_buffer_size); | |
3312 | static DEVICE_ATTR_RW(fw_crash_state); | |
3313 | static DEVICE_ATTR_RO(page_size); | |
3314 | static DEVICE_ATTR_RO(ldio_outstanding); | |
3315 | static DEVICE_ATTR_RO(fw_cmds_outstanding); | |
3316 | static DEVICE_ATTR_RO(dump_system_regs); | |
3317 | static DEVICE_ATTR_RO(raid_map_id); | |
3318 | ||
3319 | static struct device_attribute *megaraid_host_attrs[] = { | |
3320 | &dev_attr_fw_crash_buffer_size, | |
3321 | &dev_attr_fw_crash_buffer, | |
3322 | &dev_attr_fw_crash_state, | |
3323 | &dev_attr_page_size, | |
3324 | &dev_attr_ldio_outstanding, | |
3325 | &dev_attr_fw_cmds_outstanding, | |
3326 | &dev_attr_dump_system_regs, | |
3327 | &dev_attr_raid_map_id, | |
3328 | NULL, | |
3329 | }; | |
3330 | ||
3331 | /* | |
3332 | * Scsi host template for megaraid_sas driver | |
3333 | */ | |
3334 | static struct scsi_host_template megasas_template = { | |
3335 | ||
3336 | .module = THIS_MODULE, | |
3337 | .name = "Avago SAS based MegaRAID driver", | |
3338 | .proc_name = "megaraid_sas", | |
3339 | .slave_configure = megasas_slave_configure, | |
3340 | .slave_alloc = megasas_slave_alloc, | |
3341 | .slave_destroy = megasas_slave_destroy, | |
3342 | .queuecommand = megasas_queue_command, | |
3343 | .eh_target_reset_handler = megasas_reset_target, | |
3344 | .eh_abort_handler = megasas_task_abort, | |
3345 | .eh_host_reset_handler = megasas_reset_bus_host, | |
3346 | .eh_timed_out = megasas_reset_timer, | |
3347 | .shost_attrs = megaraid_host_attrs, | |
3348 | .bios_param = megasas_bios_param, | |
3349 | .change_queue_depth = scsi_change_queue_depth, | |
3350 | .max_segment_size = 0xffffffff, | |
3351 | .no_write_same = 1, | |
3352 | }; | |
3353 | ||
3354 | /** | |
3355 | * megasas_complete_int_cmd - Completes an internal command | |
3356 | * @instance: Adapter soft state | |
3357 | * @cmd: Command to be completed | |
3358 | * | |
3359 | * The megasas_issue_blocked_cmd() function waits for a command to complete | |
3360 | * after it issues a command. This function wakes up that waiting routine by | |
3361 | * calling wake_up() on the wait queue. | |
3362 | */ | |
3363 | static void | |
3364 | megasas_complete_int_cmd(struct megasas_instance *instance, | |
3365 | struct megasas_cmd *cmd) | |
3366 | { | |
3367 | cmd->cmd_status_drv = cmd->frame->io.cmd_status; | |
3368 | wake_up(&instance->int_cmd_wait_q); | |
3369 | } | |
3370 | ||
3371 | /** | |
3372 | * megasas_complete_abort - Completes aborting a command | |
3373 | * @instance: Adapter soft state | |
3374 | * @cmd: Cmd that was issued to abort another cmd | |
3375 | * | |
3376 | * The megasas_issue_blocked_abort_cmd() function waits on abort_cmd_wait_q | |
3377 | * after it issues an abort on a previously issued command. This function | |
3378 | * wakes up all functions waiting on the same wait queue. | |
3379 | */ | |
3380 | static void | |
3381 | megasas_complete_abort(struct megasas_instance *instance, | |
3382 | struct megasas_cmd *cmd) | |
3383 | { | |
3384 | if (cmd->sync_cmd) { | |
3385 | cmd->sync_cmd = 0; | |
3386 | cmd->cmd_status_drv = 0; | |
3387 | wake_up(&instance->abort_cmd_wait_q); | |
3388 | } | |
3389 | } | |
3390 | ||
3391 | /** | |
3392 | * megasas_complete_cmd - Completes a command | |
3393 | * @instance: Adapter soft state | |
3394 | * @cmd: Command to be completed | |
3395 | * @alt_status: If non-zero, use this value as status to | |
3396 | * SCSI mid-layer instead of the value returned | |
3397 | * by the FW. This should be used if caller wants | |
3398 | * an alternate status (as in the case of aborted | |
3399 | * commands) | |
3400 | */ | |
3401 | void | |
3402 | megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd, | |
3403 | u8 alt_status) | |
3404 | { | |
3405 | int exception = 0; | |
3406 | struct megasas_header *hdr = &cmd->frame->hdr; | |
3407 | unsigned long flags; | |
3408 | struct fusion_context *fusion = instance->ctrl_context; | |
3409 | u32 opcode, status; | |
3410 | ||
3411 | /* flag for the retry reset */ | |
3412 | cmd->retry_for_fw_reset = 0; | |
3413 | ||
3414 | if (cmd->scmd) | |
3415 | cmd->scmd->SCp.ptr = NULL; | |
3416 | ||
3417 | switch (hdr->cmd) { | |
3418 | case MFI_CMD_INVALID: | |
3419 | /* Some older 1068 controller FW may keep a pended | |
3420 | MR_DCMD_CTRL_EVENT_GET_INFO left over from the main kernel | |
3421 | when booting the kdump kernel. Ignore this command to | |
3422 | prevent a kernel panic on shutdown of the kdump kernel. */ | |
3423 | dev_warn(&instance->pdev->dev, "MFI_CMD_INVALID command " | |
3424 | "completed\n"); | |
3425 | dev_warn(&instance->pdev->dev, "If you have a controller " | |
3426 | "other than PERC5, please upgrade your firmware\n"); | |
3427 | break; | |
3428 | case MFI_CMD_PD_SCSI_IO: | |
3429 | case MFI_CMD_LD_SCSI_IO: | |
3430 | ||
3431 | /* | |
3432 | * MFI_CMD_PD_SCSI_IO and MFI_CMD_LD_SCSI_IO could have been | |
3433 | * issued either through an IO path or an IOCTL path. If it | |
3434 | * was via IOCTL, we will send it to internal completion. | |
3435 | */ | |
3436 | if (cmd->sync_cmd) { | |
3437 | cmd->sync_cmd = 0; | |
3438 | megasas_complete_int_cmd(instance, cmd); | |
3439 | break; | |
3440 | } | |
3441 | /* fall through */ | |
3442 | ||
3443 | case MFI_CMD_LD_READ: | |
3444 | case MFI_CMD_LD_WRITE: | |
3445 | ||
3446 | if (alt_status) { | |
3447 | cmd->scmd->result = alt_status << 16; | |
3448 | exception = 1; | |
3449 | } | |
3450 | ||
3451 | if (exception) { | |
3452 | ||
3453 | atomic_dec(&instance->fw_outstanding); | |
3454 | ||
3455 | scsi_dma_unmap(cmd->scmd); | |
3456 | cmd->scmd->scsi_done(cmd->scmd); | |
3457 | megasas_return_cmd(instance, cmd); | |
3458 | ||
3459 | break; | |
3460 | } | |
3461 | ||
3462 | switch (hdr->cmd_status) { | |
3463 | ||
3464 | case MFI_STAT_OK: | |
3465 | cmd->scmd->result = DID_OK << 16; | |
3466 | break; | |
3467 | ||
3468 | case MFI_STAT_SCSI_IO_FAILED: | |
3469 | case MFI_STAT_LD_INIT_IN_PROGRESS: | |
3470 | cmd->scmd->result = | |
3471 | (DID_ERROR << 16) | hdr->scsi_status; | |
3472 | break; | |
3473 | ||
3474 | case MFI_STAT_SCSI_DONE_WITH_ERROR: | |
3475 | ||
3476 | cmd->scmd->result = (DID_OK << 16) | hdr->scsi_status; | |
3477 | ||
3478 | if (hdr->scsi_status == SAM_STAT_CHECK_CONDITION) { | |
3479 | memset(cmd->scmd->sense_buffer, 0, | |
3480 | SCSI_SENSE_BUFFERSIZE); | |
3481 | memcpy(cmd->scmd->sense_buffer, cmd->sense, | |
3482 | hdr->sense_len); | |
3483 | ||
3484 | cmd->scmd->result |= DRIVER_SENSE << 24; | |
3485 | } | |
3486 | ||
3487 | break; | |
3488 | ||
3489 | case MFI_STAT_LD_OFFLINE: | |
3490 | case MFI_STAT_DEVICE_NOT_FOUND: | |
3491 | cmd->scmd->result = DID_BAD_TARGET << 16; | |
3492 | break; | |
3493 | ||
3494 | default: | |
3495 | dev_printk(KERN_DEBUG, &instance->pdev->dev, "MFI FW status %#x\n", | |
3496 | hdr->cmd_status); | |
3497 | cmd->scmd->result = DID_ERROR << 16; | |
3498 | break; | |
3499 | } | |
3500 | ||
3501 | atomic_dec(&instance->fw_outstanding); | |
3502 | ||
3503 | scsi_dma_unmap(cmd->scmd); | |
3504 | cmd->scmd->scsi_done(cmd->scmd); | |
3505 | megasas_return_cmd(instance, cmd); | |
3506 | ||
3507 | break; | |
3508 | ||
3509 | case MFI_CMD_SMP: | |
3510 | case MFI_CMD_STP: | |
3511 | case MFI_CMD_NVME: | |
3512 | case MFI_CMD_TOOLBOX: | |
3513 | megasas_complete_int_cmd(instance, cmd); | |
3514 | break; | |
3515 | ||
3516 | case MFI_CMD_DCMD: | |
3517 | opcode = le32_to_cpu(cmd->frame->dcmd.opcode); | |
3518 | /* Check for LD map update */ | |
3519 | if ((opcode == MR_DCMD_LD_MAP_GET_INFO) | |
3520 | && (cmd->frame->dcmd.mbox.b[1] == 1)) { | |
3521 | fusion->fast_path_io = 0; | |
3522 | spin_lock_irqsave(instance->host->host_lock, flags); | |
3523 | status = cmd->frame->hdr.cmd_status; | |
3524 | instance->map_update_cmd = NULL; | |
3525 | if (status != MFI_STAT_OK) { | |
3526 | if (status != MFI_STAT_NOT_FOUND) | |
3527 | dev_warn(&instance->pdev->dev, "map syncfailed, status = 0x%x\n", | |
3528 | cmd->frame->hdr.cmd_status); | |
3529 | else { | |
3530 | megasas_return_cmd(instance, cmd); | |
3531 | spin_unlock_irqrestore( | |
3532 | instance->host->host_lock, | |
3533 | flags); | |
3534 | break; | |
3535 | } | |
3536 | } | |
3537 | ||
3538 | megasas_return_cmd(instance, cmd); | |
3539 | ||
3540 | /* | |
3541 | * Set fast path IO to ZERO. | |
3542 | * Validate Map will set proper value. | |
3543 | * Meanwhile all IOs will go as LD IO. | |
3544 | */ | |
3545 | if (status == MFI_STAT_OK && | |
3546 | (MR_ValidateMapInfo(instance, (instance->map_id + 1)))) { | |
3547 | instance->map_id++; | |
3548 | fusion->fast_path_io = 1; | |
3549 | } else { | |
3550 | fusion->fast_path_io = 0; | |
3551 | } | |
3552 | ||
3553 | megasas_sync_map_info(instance); | |
3554 | spin_unlock_irqrestore(instance->host->host_lock, | |
3555 | flags); | |
3556 | break; | |
3557 | } | |
3558 | if (opcode == MR_DCMD_CTRL_EVENT_GET_INFO || | |
3559 | opcode == MR_DCMD_CTRL_EVENT_GET) { | |
3560 | spin_lock_irqsave(&poll_aen_lock, flags); | |
3561 | megasas_poll_wait_aen = 0; | |
3562 | spin_unlock_irqrestore(&poll_aen_lock, flags); | |
3563 | } | |
3564 | ||
3565 | /* FW has an updated PD sequence */ | |
3566 | if ((opcode == MR_DCMD_SYSTEM_PD_MAP_GET_INFO) && | |
3567 | (cmd->frame->dcmd.mbox.b[0] == 1)) { | |
3568 | ||
3569 | spin_lock_irqsave(instance->host->host_lock, flags); | |
3570 | status = cmd->frame->hdr.cmd_status; | |
3571 | instance->jbod_seq_cmd = NULL; | |
3572 | megasas_return_cmd(instance, cmd); | |
3573 | ||
3574 | if (status == MFI_STAT_OK) { | |
3575 | instance->pd_seq_map_id++; | |
3576 | /* Re-register a pd sync seq num cmd */ | |
3577 | if (megasas_sync_pd_seq_num(instance, true)) | |
3578 | instance->use_seqnum_jbod_fp = false; | |
3579 | } else | |
3580 | instance->use_seqnum_jbod_fp = false; | |
3581 | ||
3582 | spin_unlock_irqrestore(instance->host->host_lock, flags); | |
3583 | break; | |
3584 | } | |
3585 | ||
3586 | /* | |
3587 | * See if got an event notification | |
3588 | */ | |
3589 | if (opcode == MR_DCMD_CTRL_EVENT_WAIT) | |
3590 | megasas_service_aen(instance, cmd); | |
3591 | else | |
3592 | megasas_complete_int_cmd(instance, cmd); | |
3593 | ||
3594 | break; | |
3595 | ||
3596 | case MFI_CMD_ABORT: | |
3597 | /* | |
3598 | * Cmd issued to abort another cmd returned | |
3599 | */ | |
3600 | megasas_complete_abort(instance, cmd); | |
3601 | break; | |
3602 | ||
3603 | default: | |
3604 | dev_info(&instance->pdev->dev, "Unknown command completed! [0x%X]\n", | |
3605 | hdr->cmd); | |
3606 | megasas_complete_int_cmd(instance, cmd); | |
3607 | break; | |
3608 | } | |
3609 | } | |
3610 | ||
3611 | /** | |
3612 | * megasas_issue_pending_cmds_again - issue all pending cmds | |
3613 | * in FW again because of the fw reset | |
3614 | * @instance: Adapter soft state | |
3615 | */ | |
3616 | static inline void | |
3617 | megasas_issue_pending_cmds_again(struct megasas_instance *instance) | |
3618 | { | |
3619 | struct megasas_cmd *cmd; | |
3620 | struct list_head clist_local; | |
3621 | union megasas_evt_class_locale class_locale; | |
3622 | unsigned long flags; | |
3623 | u32 seq_num; | |
3624 | ||
3625 | INIT_LIST_HEAD(&clist_local); | |
3626 | spin_lock_irqsave(&instance->hba_lock, flags); | |
3627 | list_splice_init(&instance->internal_reset_pending_q, &clist_local); | |
3628 | spin_unlock_irqrestore(&instance->hba_lock, flags); | |
3629 | ||
3630 | while (!list_empty(&clist_local)) { | |
3631 | cmd = list_entry((&clist_local)->next, | |
3632 | struct megasas_cmd, list); | |
3633 | list_del_init(&cmd->list); | |
3634 | ||
3635 | if (cmd->sync_cmd || cmd->scmd) { | |
3636 | dev_notice(&instance->pdev->dev, "command %p, %p:%d" | |
3637 | "detected to be pending while HBA reset\n", | |
3638 | cmd, cmd->scmd, cmd->sync_cmd); | |
3639 | ||
3640 | cmd->retry_for_fw_reset++; | |
3641 | ||
3642 | if (cmd->retry_for_fw_reset == 3) { | |
3643 | dev_notice(&instance->pdev->dev, "cmd %p, %p:%d" | |
3644 | "was tried multiple times during reset." | |
3645 | "Shutting down the HBA\n", | |
3646 | cmd, cmd->scmd, cmd->sync_cmd); | |
3647 | instance->instancet->disable_intr(instance); | |
3648 | atomic_set(&instance->fw_reset_no_pci_access, 1); | |
3649 | megaraid_sas_kill_hba(instance); | |
3650 | return; | |
3651 | } | |
3652 | } | |
3653 | ||
3654 | if (cmd->sync_cmd == 1) { | |
3655 | if (cmd->scmd) { | |
3656 | dev_notice(&instance->pdev->dev, "unexpected" | |
3657 | "cmd attached to internal command!\n"); | |
3658 | } | |
3659 | dev_notice(&instance->pdev->dev, "%p synchronous cmd" | |
3660 | "on the internal reset queue," | |
3661 | "issue it again.\n", cmd); | |
3662 | cmd->cmd_status_drv = MFI_STAT_INVALID_STATUS; | |
3663 | instance->instancet->fire_cmd(instance, | |
3664 | cmd->frame_phys_addr, | |
3665 | 0, instance->reg_set); | |
3666 | } else if (cmd->scmd) { | |
3667 | dev_notice(&instance->pdev->dev, "%p scsi cmd [%02x]" | |
3668 | "detected on the internal queue, issue again.\n", | |
3669 | cmd, cmd->scmd->cmnd[0]); | |
3670 | ||
3671 | atomic_inc(&instance->fw_outstanding); | |
3672 | instance->instancet->fire_cmd(instance, | |
3673 | cmd->frame_phys_addr, | |
3674 | cmd->frame_count-1, instance->reg_set); | |
3675 | } else { | |
3676 | dev_notice(&instance->pdev->dev, "%p unexpected cmd on the" | |
3677 | "internal reset defer list while re-issue!!\n", | |
3678 | cmd); | |
3679 | } | |
3680 | } | |
3681 | ||
3682 | if (instance->aen_cmd) { | |
3683 | dev_notice(&instance->pdev->dev, "aen_cmd in def process\n"); | |
3684 | megasas_return_cmd(instance, instance->aen_cmd); | |
3685 | ||
3686 | instance->aen_cmd = NULL; | |
3687 | } | |
3688 | ||
3689 | /* | |
3690 | * Initiate AEN (Asynchronous Event Notification) | |
3691 | */ | |
3692 | seq_num = instance->last_seq_num; | |
3693 | class_locale.members.reserved = 0; | |
3694 | class_locale.members.locale = MR_EVT_LOCALE_ALL; | |
3695 | class_locale.members.class = MR_EVT_CLASS_DEBUG; | |
3696 | ||
3697 | megasas_register_aen(instance, seq_num, class_locale.word); | |
3698 | } | |
3699 | ||
3700 | /** | |
3701 | * Move the internal reset pending commands to a deferred queue. | |
3702 | * | |
3703 | * We move the commands pending at internal reset time to a | |
3704 | * pending queue. This queue would be flushed after successful | |
3705 | * completion of the internal reset sequence. if the internal reset | |
3706 | * did not complete in time, the kernel reset handler would flush | |
3707 | * these commands. | |
3708 | **/ | |
3709 | static void | |
3710 | megasas_internal_reset_defer_cmds(struct megasas_instance *instance) | |
3711 | { | |
3712 | struct megasas_cmd *cmd; | |
3713 | int i; | |
3714 | u16 max_cmd = instance->max_fw_cmds; | |
3715 | u32 defer_index; | |
3716 | unsigned long flags; | |
3717 | ||
3718 | defer_index = 0; | |
3719 | spin_lock_irqsave(&instance->mfi_pool_lock, flags); | |
3720 | for (i = 0; i < max_cmd; i++) { | |
3721 | cmd = instance->cmd_list[i]; | |
3722 | if (cmd->sync_cmd == 1 || cmd->scmd) { | |
3723 | dev_notice(&instance->pdev->dev, "moving cmd[%d]:%p:%d:%p" | |
3724 | "on the defer queue as internal\n", | |
3725 | defer_index, cmd, cmd->sync_cmd, cmd->scmd); | |
3726 | ||
3727 | if (!list_empty(&cmd->list)) { | |
3728 | dev_notice(&instance->pdev->dev, "ERROR while" | |
3729 | " moving this cmd:%p, %d %p, it was" | |
3730 | "discovered on some list?\n", | |
3731 | cmd, cmd->sync_cmd, cmd->scmd); | |
3732 | ||
3733 | list_del_init(&cmd->list); | |
3734 | } | |
3735 | defer_index++; | |
3736 | list_add_tail(&cmd->list, | |
3737 | &instance->internal_reset_pending_q); | |
3738 | } | |
3739 | } | |
3740 | spin_unlock_irqrestore(&instance->mfi_pool_lock, flags); | |
3741 | } | |
3742 | ||
3743 | ||
3744 | static void | |
3745 | process_fw_state_change_wq(struct work_struct *work) | |
3746 | { | |
3747 | struct megasas_instance *instance = | |
3748 | container_of(work, struct megasas_instance, work_init); | |
3749 | u32 wait; | |
3750 | unsigned long flags; | |
3751 | ||
3752 | if (atomic_read(&instance->adprecovery) != MEGASAS_ADPRESET_SM_INFAULT) { | |
3753 | dev_notice(&instance->pdev->dev, "error, recovery st %x\n", | |
3754 | atomic_read(&instance->adprecovery)); | |
3755 | return ; | |
3756 | } | |
3757 | ||
3758 | if (atomic_read(&instance->adprecovery) == MEGASAS_ADPRESET_SM_INFAULT) { | |
3759 | dev_notice(&instance->pdev->dev, "FW detected to be in fault" | |
3760 | "state, restarting it...\n"); | |
3761 | ||
3762 | instance->instancet->disable_intr(instance); | |
3763 | atomic_set(&instance->fw_outstanding, 0); | |
3764 | ||
3765 | atomic_set(&instance->fw_reset_no_pci_access, 1); | |
3766 | instance->instancet->adp_reset(instance, instance->reg_set); | |
3767 | atomic_set(&instance->fw_reset_no_pci_access, 0); | |
3768 | ||
3769 | dev_notice(&instance->pdev->dev, "FW restarted successfully," | |
3770 | "initiating next stage...\n"); | |
3771 | ||
3772 | dev_notice(&instance->pdev->dev, "HBA recovery state machine," | |
3773 | "state 2 starting...\n"); | |
3774 | ||
3775 | /* waiting for about 20 second before start the second init */ | |
3776 | for (wait = 0; wait < 30; wait++) { | |
3777 | msleep(1000); | |
3778 | } | |
3779 | ||
3780 | if (megasas_transition_to_ready(instance, 1)) { | |
3781 | dev_notice(&instance->pdev->dev, "adapter not ready\n"); | |
3782 | ||
3783 | atomic_set(&instance->fw_reset_no_pci_access, 1); | |
3784 | megaraid_sas_kill_hba(instance); | |
3785 | return ; | |
3786 | } | |
3787 | ||
3788 | if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS1064R) || | |
3789 | (instance->pdev->device == PCI_DEVICE_ID_DELL_PERC5) || | |
3790 | (instance->pdev->device == PCI_DEVICE_ID_LSI_VERDE_ZCR) | |
3791 | ) { | |
3792 | *instance->consumer = *instance->producer; | |
3793 | } else { | |
3794 | *instance->consumer = 0; | |
3795 | *instance->producer = 0; | |
3796 | } | |
3797 | ||
3798 | megasas_issue_init_mfi(instance); | |
3799 | ||
3800 | spin_lock_irqsave(&instance->hba_lock, flags); | |
3801 | atomic_set(&instance->adprecovery, MEGASAS_HBA_OPERATIONAL); | |
3802 | spin_unlock_irqrestore(&instance->hba_lock, flags); | |
3803 | instance->instancet->enable_intr(instance); | |
3804 | ||
3805 | megasas_issue_pending_cmds_again(instance); | |
3806 | instance->issuepend_done = 1; | |
3807 | } | |
3808 | } | |
3809 | ||
3810 | /** | |
3811 | * megasas_deplete_reply_queue - Processes all completed commands | |
3812 | * @instance: Adapter soft state | |
3813 | * @alt_status: Alternate status to be returned to | |
3814 | * SCSI mid-layer instead of the status | |
3815 | * returned by the FW | |
3816 | * Note: this must be called with hba lock held | |
3817 | */ | |
3818 | static int | |
3819 | megasas_deplete_reply_queue(struct megasas_instance *instance, | |
3820 | u8 alt_status) | |
3821 | { | |
3822 | u32 mfiStatus; | |
3823 | u32 fw_state; | |
3824 | ||
3825 | if ((mfiStatus = instance->instancet->check_reset(instance, | |
3826 | instance->reg_set)) == 1) { | |
3827 | return IRQ_HANDLED; | |
3828 | } | |
3829 | ||
3830 | mfiStatus = instance->instancet->clear_intr(instance); | |
3831 | if (mfiStatus == 0) { | |
3832 | /* Hardware may not set outbound_intr_status in MSI-X mode */ | |
3833 | if (!instance->msix_vectors) | |
3834 | return IRQ_NONE; | |
3835 | } | |
3836 | ||
3837 | instance->mfiStatus = mfiStatus; | |
3838 | ||
3839 | if ((mfiStatus & MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE)) { | |
3840 | fw_state = instance->instancet->read_fw_status_reg( | |
3841 | instance) & MFI_STATE_MASK; | |
3842 | ||
3843 | if (fw_state != MFI_STATE_FAULT) { | |
3844 | dev_notice(&instance->pdev->dev, "fw state:%x\n", | |
3845 | fw_state); | |
3846 | } | |
3847 | ||
3848 | if ((fw_state == MFI_STATE_FAULT) && | |
3849 | (instance->disableOnlineCtrlReset == 0)) { | |
3850 | dev_notice(&instance->pdev->dev, "wait adp restart\n"); | |
3851 | ||
3852 | if ((instance->pdev->device == | |
3853 | PCI_DEVICE_ID_LSI_SAS1064R) || | |
3854 | (instance->pdev->device == | |
3855 | PCI_DEVICE_ID_DELL_PERC5) || | |
3856 | (instance->pdev->device == | |
3857 | PCI_DEVICE_ID_LSI_VERDE_ZCR)) { | |
3858 | ||
3859 | *instance->consumer = | |
3860 | cpu_to_le32(MEGASAS_ADPRESET_INPROG_SIGN); | |
3861 | } | |
3862 | ||
3863 | ||
3864 | instance->instancet->disable_intr(instance); | |
3865 | atomic_set(&instance->adprecovery, MEGASAS_ADPRESET_SM_INFAULT); | |
3866 | instance->issuepend_done = 0; | |
3867 | ||
3868 | atomic_set(&instance->fw_outstanding, 0); | |
3869 | megasas_internal_reset_defer_cmds(instance); | |
3870 | ||
3871 | dev_notice(&instance->pdev->dev, "fwState=%x, stage:%d\n", | |
3872 | fw_state, atomic_read(&instance->adprecovery)); | |
3873 | ||
3874 | schedule_work(&instance->work_init); | |
3875 | return IRQ_HANDLED; | |
3876 | ||
3877 | } else { | |
3878 | dev_notice(&instance->pdev->dev, "fwstate:%x, dis_OCR=%x\n", | |
3879 | fw_state, instance->disableOnlineCtrlReset); | |
3880 | } | |
3881 | } | |
3882 | ||
3883 | tasklet_schedule(&instance->isr_tasklet); | |
3884 | return IRQ_HANDLED; | |
3885 | } | |
3886 | /** | |
3887 | * megasas_isr - isr entry point | |
3888 | */ | |
3889 | static irqreturn_t megasas_isr(int irq, void *devp) | |
3890 | { | |
3891 | struct megasas_irq_context *irq_context = devp; | |
3892 | struct megasas_instance *instance = irq_context->instance; | |
3893 | unsigned long flags; | |
3894 | irqreturn_t rc; | |
3895 | ||
3896 | if (atomic_read(&instance->fw_reset_no_pci_access)) | |
3897 | return IRQ_HANDLED; | |
3898 | ||
3899 | spin_lock_irqsave(&instance->hba_lock, flags); | |
3900 | rc = megasas_deplete_reply_queue(instance, DID_OK); | |
3901 | spin_unlock_irqrestore(&instance->hba_lock, flags); | |
3902 | ||
3903 | return rc; | |
3904 | } | |
3905 | ||
3906 | /** | |
3907 | * megasas_transition_to_ready - Move the FW to READY state | |
3908 | * @instance: Adapter soft state | |
3909 | * | |
3910 | * During the initialization, FW passes can potentially be in any one of | |
3911 | * several possible states. If the FW in operational, waiting-for-handshake | |
3912 | * states, driver must take steps to bring it to ready state. Otherwise, it | |
3913 | * has to wait for the ready state. | |
3914 | */ | |
3915 | int | |
3916 | megasas_transition_to_ready(struct megasas_instance *instance, int ocr) | |
3917 | { | |
3918 | int i; | |
3919 | u8 max_wait; | |
3920 | u32 fw_state; | |
3921 | u32 abs_state, curr_abs_state; | |
3922 | ||
3923 | abs_state = instance->instancet->read_fw_status_reg(instance); | |
3924 | fw_state = abs_state & MFI_STATE_MASK; | |
3925 | ||
3926 | if (fw_state != MFI_STATE_READY) | |
3927 | dev_info(&instance->pdev->dev, "Waiting for FW to come to ready" | |
3928 | " state\n"); | |
3929 | ||
3930 | while (fw_state != MFI_STATE_READY) { | |
3931 | ||
3932 | switch (fw_state) { | |
3933 | ||
3934 | case MFI_STATE_FAULT: | |
3935 | dev_printk(KERN_ERR, &instance->pdev->dev, | |
3936 | "FW in FAULT state, Fault code:0x%x subcode:0x%x func:%s\n", | |
3937 | abs_state & MFI_STATE_FAULT_CODE, | |
3938 | abs_state & MFI_STATE_FAULT_SUBCODE, __func__); | |
3939 | if (ocr) { | |
3940 | max_wait = MEGASAS_RESET_WAIT_TIME; | |
3941 | break; | |
3942 | } else { | |
3943 | dev_printk(KERN_DEBUG, &instance->pdev->dev, "System Register set:\n"); | |
3944 | megasas_dump_reg_set(instance->reg_set); | |
3945 | return -ENODEV; | |
3946 | } | |
3947 | ||
3948 | case MFI_STATE_WAIT_HANDSHAKE: | |
3949 | /* | |
3950 | * Set the CLR bit in inbound doorbell | |
3951 | */ | |
3952 | if ((instance->pdev->device == | |
3953 | PCI_DEVICE_ID_LSI_SAS0073SKINNY) || | |
3954 | (instance->pdev->device == | |
3955 | PCI_DEVICE_ID_LSI_SAS0071SKINNY) || | |
3956 | (instance->adapter_type != MFI_SERIES)) | |
3957 | writel( | |
3958 | MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG, | |
3959 | &instance->reg_set->doorbell); | |
3960 | else | |
3961 | writel( | |
3962 | MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG, | |
3963 | &instance->reg_set->inbound_doorbell); | |
3964 | ||
3965 | max_wait = MEGASAS_RESET_WAIT_TIME; | |
3966 | break; | |
3967 | ||
3968 | case MFI_STATE_BOOT_MESSAGE_PENDING: | |
3969 | if ((instance->pdev->device == | |
3970 | PCI_DEVICE_ID_LSI_SAS0073SKINNY) || | |
3971 | (instance->pdev->device == | |
3972 | PCI_DEVICE_ID_LSI_SAS0071SKINNY) || | |
3973 | (instance->adapter_type != MFI_SERIES)) | |
3974 | writel(MFI_INIT_HOTPLUG, | |
3975 | &instance->reg_set->doorbell); | |
3976 | else | |
3977 | writel(MFI_INIT_HOTPLUG, | |
3978 | &instance->reg_set->inbound_doorbell); | |
3979 | ||
3980 | max_wait = MEGASAS_RESET_WAIT_TIME; | |
3981 | break; | |
3982 | ||
3983 | case MFI_STATE_OPERATIONAL: | |
3984 | /* | |
3985 | * Bring it to READY state; assuming max wait 10 secs | |
3986 | */ | |
3987 | instance->instancet->disable_intr(instance); | |
3988 | if ((instance->pdev->device == | |
3989 | PCI_DEVICE_ID_LSI_SAS0073SKINNY) || | |
3990 | (instance->pdev->device == | |
3991 | PCI_DEVICE_ID_LSI_SAS0071SKINNY) || | |
3992 | (instance->adapter_type != MFI_SERIES)) { | |
3993 | writel(MFI_RESET_FLAGS, | |
3994 | &instance->reg_set->doorbell); | |
3995 | ||
3996 | if (instance->adapter_type != MFI_SERIES) { | |
3997 | for (i = 0; i < (10 * 1000); i += 20) { | |
3998 | if (megasas_readl( | |
3999 | instance, | |
4000 | &instance-> | |
4001 | reg_set-> | |
4002 | doorbell) & 1) | |
4003 | msleep(20); | |
4004 | else | |
4005 | break; | |
4006 | } | |
4007 | } | |
4008 | } else | |
4009 | writel(MFI_RESET_FLAGS, | |
4010 | &instance->reg_set->inbound_doorbell); | |
4011 | ||
4012 | max_wait = MEGASAS_RESET_WAIT_TIME; | |
4013 | break; | |
4014 | ||
4015 | case MFI_STATE_UNDEFINED: | |
4016 | /* | |
4017 | * This state should not last for more than 2 seconds | |
4018 | */ | |
4019 | max_wait = MEGASAS_RESET_WAIT_TIME; | |
4020 | break; | |
4021 | ||
4022 | case MFI_STATE_BB_INIT: | |
4023 | max_wait = MEGASAS_RESET_WAIT_TIME; | |
4024 | break; | |
4025 | ||
4026 | case MFI_STATE_FW_INIT: | |
4027 | max_wait = MEGASAS_RESET_WAIT_TIME; | |
4028 | break; | |
4029 | ||
4030 | case MFI_STATE_FW_INIT_2: | |
4031 | max_wait = MEGASAS_RESET_WAIT_TIME; | |
4032 | break; | |
4033 | ||
4034 | case MFI_STATE_DEVICE_SCAN: | |
4035 | max_wait = MEGASAS_RESET_WAIT_TIME; | |
4036 | break; | |
4037 | ||
4038 | case MFI_STATE_FLUSH_CACHE: | |
4039 | max_wait = MEGASAS_RESET_WAIT_TIME; | |
4040 | break; | |
4041 | ||
4042 | default: | |
4043 | dev_printk(KERN_DEBUG, &instance->pdev->dev, "Unknown state 0x%x\n", | |
4044 | fw_state); | |
4045 | dev_printk(KERN_DEBUG, &instance->pdev->dev, "System Register set:\n"); | |
4046 | megasas_dump_reg_set(instance->reg_set); | |
4047 | return -ENODEV; | |
4048 | } | |
4049 | ||
4050 | /* | |
4051 | * The cur_state should not last for more than max_wait secs | |
4052 | */ | |
4053 | for (i = 0; i < max_wait * 50; i++) { | |
4054 | curr_abs_state = instance->instancet-> | |
4055 | read_fw_status_reg(instance); | |
4056 | ||
4057 | if (abs_state == curr_abs_state) { | |
4058 | msleep(20); | |
4059 | } else | |
4060 | break; | |
4061 | } | |
4062 | ||
4063 | /* | |
4064 | * Return error if fw_state hasn't changed after max_wait | |
4065 | */ | |
4066 | if (curr_abs_state == abs_state) { | |
4067 | dev_printk(KERN_DEBUG, &instance->pdev->dev, "FW state [%d] hasn't changed " | |
4068 | "in %d secs\n", fw_state, max_wait); | |
4069 | dev_printk(KERN_DEBUG, &instance->pdev->dev, "System Register set:\n"); | |
4070 | megasas_dump_reg_set(instance->reg_set); | |
4071 | return -ENODEV; | |
4072 | } | |
4073 | ||
4074 | abs_state = curr_abs_state; | |
4075 | fw_state = curr_abs_state & MFI_STATE_MASK; | |
4076 | } | |
4077 | dev_info(&instance->pdev->dev, "FW now in Ready state\n"); | |
4078 | ||
4079 | return 0; | |
4080 | } | |
4081 | ||
4082 | /** | |
4083 | * megasas_teardown_frame_pool - Destroy the cmd frame DMA pool | |
4084 | * @instance: Adapter soft state | |
4085 | */ | |
4086 | static void megasas_teardown_frame_pool(struct megasas_instance *instance) | |
4087 | { | |
4088 | int i; | |
4089 | u16 max_cmd = instance->max_mfi_cmds; | |
4090 | struct megasas_cmd *cmd; | |
4091 | ||
4092 | if (!instance->frame_dma_pool) | |
4093 | return; | |
4094 | ||
4095 | /* | |
4096 | * Return all frames to pool | |
4097 | */ | |
4098 | for (i = 0; i < max_cmd; i++) { | |
4099 | ||
4100 | cmd = instance->cmd_list[i]; | |
4101 | ||
4102 | if (cmd->frame) | |
4103 | dma_pool_free(instance->frame_dma_pool, cmd->frame, | |
4104 | cmd->frame_phys_addr); | |
4105 | ||
4106 | if (cmd->sense) | |
4107 | dma_pool_free(instance->sense_dma_pool, cmd->sense, | |
4108 | cmd->sense_phys_addr); | |
4109 | } | |
4110 | ||
4111 | /* | |
4112 | * Now destroy the pool itself | |
4113 | */ | |
4114 | dma_pool_destroy(instance->frame_dma_pool); | |
4115 | dma_pool_destroy(instance->sense_dma_pool); | |
4116 | ||
4117 | instance->frame_dma_pool = NULL; | |
4118 | instance->sense_dma_pool = NULL; | |
4119 | } | |
4120 | ||
4121 | /** | |
4122 | * megasas_create_frame_pool - Creates DMA pool for cmd frames | |
4123 | * @instance: Adapter soft state | |
4124 | * | |
4125 | * Each command packet has an embedded DMA memory buffer that is used for | |
4126 | * filling MFI frame and the SG list that immediately follows the frame. This | |
4127 | * function creates those DMA memory buffers for each command packet by using | |
4128 | * PCI pool facility. | |
4129 | */ | |
4130 | static int megasas_create_frame_pool(struct megasas_instance *instance) | |
4131 | { | |
4132 | int i; | |
4133 | u16 max_cmd; | |
4134 | u32 frame_count; | |
4135 | struct megasas_cmd *cmd; | |
4136 | ||
4137 | max_cmd = instance->max_mfi_cmds; | |
4138 | ||
4139 | /* | |
4140 | * For MFI controllers. | |
4141 | * max_num_sge = 60 | |
4142 | * max_sge_sz = 16 byte (sizeof megasas_sge_skinny) | |
4143 | * Total 960 byte (15 MFI frame of 64 byte) | |
4144 | * | |
4145 | * Fusion adapter require only 3 extra frame. | |
4146 | * max_num_sge = 16 (defined as MAX_IOCTL_SGE) | |
4147 | * max_sge_sz = 12 byte (sizeof megasas_sge64) | |
4148 | * Total 192 byte (3 MFI frame of 64 byte) | |
4149 | */ | |
4150 | frame_count = (instance->adapter_type == MFI_SERIES) ? | |
4151 | (15 + 1) : (3 + 1); | |
4152 | instance->mfi_frame_size = MEGAMFI_FRAME_SIZE * frame_count; | |
4153 | /* | |
4154 | * Use DMA pool facility provided by PCI layer | |
4155 | */ | |
4156 | instance->frame_dma_pool = dma_pool_create("megasas frame pool", | |
4157 | &instance->pdev->dev, | |
4158 | instance->mfi_frame_size, 256, 0); | |
4159 | ||
4160 | if (!instance->frame_dma_pool) { | |
4161 | dev_printk(KERN_DEBUG, &instance->pdev->dev, "failed to setup frame pool\n"); | |
4162 | return -ENOMEM; | |
4163 | } | |
4164 | ||
4165 | instance->sense_dma_pool = dma_pool_create("megasas sense pool", | |
4166 | &instance->pdev->dev, 128, | |
4167 | 4, 0); | |
4168 | ||
4169 | if (!instance->sense_dma_pool) { | |
4170 | dev_printk(KERN_DEBUG, &instance->pdev->dev, "failed to setup sense pool\n"); | |
4171 | ||
4172 | dma_pool_destroy(instance->frame_dma_pool); | |
4173 | instance->frame_dma_pool = NULL; | |
4174 | ||
4175 | return -ENOMEM; | |
4176 | } | |
4177 | ||
4178 | /* | |
4179 | * Allocate and attach a frame to each of the commands in cmd_list. | |
4180 | * By making cmd->index as the context instead of the &cmd, we can | |
4181 | * always use 32bit context regardless of the architecture | |
4182 | */ | |
4183 | for (i = 0; i < max_cmd; i++) { | |
4184 | ||
4185 | cmd = instance->cmd_list[i]; | |
4186 | ||
4187 | cmd->frame = dma_pool_zalloc(instance->frame_dma_pool, | |
4188 | GFP_KERNEL, &cmd->frame_phys_addr); | |
4189 | ||
4190 | cmd->sense = dma_pool_alloc(instance->sense_dma_pool, | |
4191 | GFP_KERNEL, &cmd->sense_phys_addr); | |
4192 | ||
4193 | /* | |
4194 | * megasas_teardown_frame_pool() takes care of freeing | |
4195 | * whatever has been allocated | |
4196 | */ | |
4197 | if (!cmd->frame || !cmd->sense) { | |
4198 | dev_printk(KERN_DEBUG, &instance->pdev->dev, "dma_pool_alloc failed\n"); | |
4199 | megasas_teardown_frame_pool(instance); | |
4200 | return -ENOMEM; | |
4201 | } | |
4202 | ||
4203 | cmd->frame->io.context = cpu_to_le32(cmd->index); | |
4204 | cmd->frame->io.pad_0 = 0; | |
4205 | if ((instance->adapter_type == MFI_SERIES) && reset_devices) | |
4206 | cmd->frame->hdr.cmd = MFI_CMD_INVALID; | |
4207 | } | |
4208 | ||
4209 | return 0; | |
4210 | } | |
4211 | ||
4212 | /** | |
4213 | * megasas_free_cmds - Free all the cmds in the free cmd pool | |
4214 | * @instance: Adapter soft state | |
4215 | */ | |
4216 | void megasas_free_cmds(struct megasas_instance *instance) | |
4217 | { | |
4218 | int i; | |
4219 | ||
4220 | /* First free the MFI frame pool */ | |
4221 | megasas_teardown_frame_pool(instance); | |
4222 | ||
4223 | /* Free all the commands in the cmd_list */ | |
4224 | for (i = 0; i < instance->max_mfi_cmds; i++) | |
4225 | ||
4226 | kfree(instance->cmd_list[i]); | |
4227 | ||
4228 | /* Free the cmd_list buffer itself */ | |
4229 | kfree(instance->cmd_list); | |
4230 | instance->cmd_list = NULL; | |
4231 | ||
4232 | INIT_LIST_HEAD(&instance->cmd_pool); | |
4233 | } | |
4234 | ||
4235 | /** | |
4236 | * megasas_alloc_cmds - Allocates the command packets | |
4237 | * @instance: Adapter soft state | |
4238 | * | |
4239 | * Each command that is issued to the FW, whether IO commands from the OS or | |
4240 | * internal commands like IOCTLs, are wrapped in local data structure called | |
4241 | * megasas_cmd. The frame embedded in this megasas_cmd is actually issued to | |
4242 | * the FW. | |
4243 | * | |
4244 | * Each frame has a 32-bit field called context (tag). This context is used | |
4245 | * to get back the megasas_cmd from the frame when a frame gets completed in | |
4246 | * the ISR. Typically the address of the megasas_cmd itself would be used as | |
4247 | * the context. But we wanted to keep the differences between 32 and 64 bit | |
4248 | * systems to the mininum. We always use 32 bit integers for the context. In | |
4249 | * this driver, the 32 bit values are the indices into an array cmd_list. | |
4250 | * This array is used only to look up the megasas_cmd given the context. The | |
4251 | * free commands themselves are maintained in a linked list called cmd_pool. | |
4252 | */ | |
4253 | int megasas_alloc_cmds(struct megasas_instance *instance) | |
4254 | { | |
4255 | int i; | |
4256 | int j; | |
4257 | u16 max_cmd; | |
4258 | struct megasas_cmd *cmd; | |
4259 | ||
4260 | max_cmd = instance->max_mfi_cmds; | |
4261 | ||
4262 | /* | |
4263 | * instance->cmd_list is an array of struct megasas_cmd pointers. | |
4264 | * Allocate the dynamic array first and then allocate individual | |
4265 | * commands. | |
4266 | */ | |
4267 | instance->cmd_list = kcalloc(max_cmd, sizeof(struct megasas_cmd*), GFP_KERNEL); | |
4268 | ||
4269 | if (!instance->cmd_list) { | |
4270 | dev_printk(KERN_DEBUG, &instance->pdev->dev, "out of memory\n"); | |
4271 | return -ENOMEM; | |
4272 | } | |
4273 | ||
4274 | memset(instance->cmd_list, 0, sizeof(struct megasas_cmd *) *max_cmd); | |
4275 | ||
4276 | for (i = 0; i < max_cmd; i++) { | |
4277 | instance->cmd_list[i] = kmalloc(sizeof(struct megasas_cmd), | |
4278 | GFP_KERNEL); | |
4279 | ||
4280 | if (!instance->cmd_list[i]) { | |
4281 | ||
4282 | for (j = 0; j < i; j++) | |
4283 | kfree(instance->cmd_list[j]); | |
4284 | ||
4285 | kfree(instance->cmd_list); | |
4286 | instance->cmd_list = NULL; | |
4287 | ||
4288 | return -ENOMEM; | |
4289 | } | |
4290 | } | |
4291 | ||
4292 | for (i = 0; i < max_cmd; i++) { | |
4293 | cmd = instance->cmd_list[i]; | |
4294 | memset(cmd, 0, sizeof(struct megasas_cmd)); | |
4295 | cmd->index = i; | |
4296 | cmd->scmd = NULL; | |
4297 | cmd->instance = instance; | |
4298 | ||
4299 | list_add_tail(&cmd->list, &instance->cmd_pool); | |
4300 | } | |
4301 | ||
4302 | /* | |
4303 | * Create a frame pool and assign one frame to each cmd | |
4304 | */ | |
4305 | if (megasas_create_frame_pool(instance)) { | |
4306 | dev_printk(KERN_DEBUG, &instance->pdev->dev, "Error creating frame DMA pool\n"); | |
4307 | megasas_free_cmds(instance); | |
4308 | return -ENOMEM; | |
4309 | } | |
4310 | ||
4311 | return 0; | |
4312 | } | |
4313 | ||
4314 | /* | |
4315 | * dcmd_timeout_ocr_possible - Check if OCR is possible based on Driver/FW state. | |
4316 | * @instance: Adapter soft state | |
4317 | * | |
4318 | * Return 0 for only Fusion adapter, if driver load/unload is not in progress | |
4319 | * or FW is not under OCR. | |
4320 | */ | |
4321 | inline int | |
4322 | dcmd_timeout_ocr_possible(struct megasas_instance *instance) { | |
4323 | ||
4324 | if (instance->adapter_type == MFI_SERIES) | |
4325 | return KILL_ADAPTER; | |
4326 | else if (instance->unload || | |
4327 | test_bit(MEGASAS_FUSION_IN_RESET, &instance->reset_flags)) | |
4328 | return IGNORE_TIMEOUT; | |
4329 | else | |
4330 | return INITIATE_OCR; | |
4331 | } | |
4332 | ||
4333 | static void | |
4334 | megasas_get_pd_info(struct megasas_instance *instance, struct scsi_device *sdev) | |
4335 | { | |
4336 | int ret; | |
4337 | struct megasas_cmd *cmd; | |
4338 | struct megasas_dcmd_frame *dcmd; | |
4339 | ||
4340 | struct MR_PRIV_DEVICE *mr_device_priv_data; | |
4341 | u16 device_id = 0; | |
4342 | ||
4343 | device_id = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + sdev->id; | |
4344 | cmd = megasas_get_cmd(instance); | |
4345 | ||
4346 | if (!cmd) { | |
4347 | dev_err(&instance->pdev->dev, "Failed to get cmd %s\n", __func__); | |
4348 | return; | |
4349 | } | |
4350 | ||
4351 | dcmd = &cmd->frame->dcmd; | |
4352 | ||
4353 | memset(instance->pd_info, 0, sizeof(*instance->pd_info)); | |
4354 | memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); | |
4355 | ||
4356 | dcmd->mbox.s[0] = cpu_to_le16(device_id); | |
4357 | dcmd->cmd = MFI_CMD_DCMD; | |
4358 | dcmd->cmd_status = 0xFF; | |
4359 | dcmd->sge_count = 1; | |
4360 | dcmd->flags = MFI_FRAME_DIR_READ; | |
4361 | dcmd->timeout = 0; | |
4362 | dcmd->pad_0 = 0; | |
4363 | dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_PD_INFO)); | |
4364 | dcmd->opcode = cpu_to_le32(MR_DCMD_PD_GET_INFO); | |
4365 | ||
4366 | megasas_set_dma_settings(instance, dcmd, instance->pd_info_h, | |
4367 | sizeof(struct MR_PD_INFO)); | |
4368 | ||
4369 | if ((instance->adapter_type != MFI_SERIES) && | |
4370 | !instance->mask_interrupts) | |
4371 | ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS); | |
4372 | else | |
4373 | ret = megasas_issue_polled(instance, cmd); | |
4374 | ||
4375 | switch (ret) { | |
4376 | case DCMD_SUCCESS: | |
4377 | mr_device_priv_data = sdev->hostdata; | |
4378 | le16_to_cpus((u16 *)&instance->pd_info->state.ddf.pdType); | |
4379 | mr_device_priv_data->interface_type = | |
4380 | instance->pd_info->state.ddf.pdType.intf; | |
4381 | break; | |
4382 | ||
4383 | case DCMD_TIMEOUT: | |
4384 | ||
4385 | switch (dcmd_timeout_ocr_possible(instance)) { | |
4386 | case INITIATE_OCR: | |
4387 | cmd->flags |= DRV_DCMD_SKIP_REFIRE; | |
4388 | mutex_unlock(&instance->reset_mutex); | |
4389 | megasas_reset_fusion(instance->host, | |
4390 | MFI_IO_TIMEOUT_OCR); | |
4391 | mutex_lock(&instance->reset_mutex); | |
4392 | break; | |
4393 | case KILL_ADAPTER: | |
4394 | megaraid_sas_kill_hba(instance); | |
4395 | break; | |
4396 | case IGNORE_TIMEOUT: | |
4397 | dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", | |
4398 | __func__, __LINE__); | |
4399 | break; | |
4400 | } | |
4401 | ||
4402 | break; | |
4403 | } | |
4404 | ||
4405 | if (ret != DCMD_TIMEOUT) | |
4406 | megasas_return_cmd(instance, cmd); | |
4407 | ||
4408 | return; | |
4409 | } | |
4410 | /* | |
4411 | * megasas_get_pd_list_info - Returns FW's pd_list structure | |
4412 | * @instance: Adapter soft state | |
4413 | * @pd_list: pd_list structure | |
4414 | * | |
4415 | * Issues an internal command (DCMD) to get the FW's controller PD | |
4416 | * list structure. This information is mainly used to find out SYSTEM | |
4417 | * supported by the FW. | |
4418 | */ | |
4419 | static int | |
4420 | megasas_get_pd_list(struct megasas_instance *instance) | |
4421 | { | |
4422 | int ret = 0, pd_index = 0; | |
4423 | struct megasas_cmd *cmd; | |
4424 | struct megasas_dcmd_frame *dcmd; | |
4425 | struct MR_PD_LIST *ci; | |
4426 | struct MR_PD_ADDRESS *pd_addr; | |
4427 | ||
4428 | if (instance->pd_list_not_supported) { | |
4429 | dev_info(&instance->pdev->dev, "MR_DCMD_PD_LIST_QUERY " | |
4430 | "not supported by firmware\n"); | |
4431 | return ret; | |
4432 | } | |
4433 | ||
4434 | ci = instance->pd_list_buf; | |
4435 | ||
4436 | cmd = megasas_get_cmd(instance); | |
4437 | ||
4438 | if (!cmd) { | |
4439 | dev_printk(KERN_DEBUG, &instance->pdev->dev, "(get_pd_list): Failed to get cmd\n"); | |
4440 | return -ENOMEM; | |
4441 | } | |
4442 | ||
4443 | dcmd = &cmd->frame->dcmd; | |
4444 | ||
4445 | memset(ci, 0, sizeof(*ci)); | |
4446 | memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); | |
4447 | ||
4448 | dcmd->mbox.b[0] = MR_PD_QUERY_TYPE_EXPOSED_TO_HOST; | |
4449 | dcmd->mbox.b[1] = 0; | |
4450 | dcmd->cmd = MFI_CMD_DCMD; | |
4451 | dcmd->cmd_status = MFI_STAT_INVALID_STATUS; | |
4452 | dcmd->sge_count = 1; | |
4453 | dcmd->flags = MFI_FRAME_DIR_READ; | |
4454 | dcmd->timeout = 0; | |
4455 | dcmd->pad_0 = 0; | |
4456 | dcmd->data_xfer_len = cpu_to_le32(MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST)); | |
4457 | dcmd->opcode = cpu_to_le32(MR_DCMD_PD_LIST_QUERY); | |
4458 | ||
4459 | megasas_set_dma_settings(instance, dcmd, instance->pd_list_buf_h, | |
4460 | (MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST))); | |
4461 | ||
4462 | if ((instance->adapter_type != MFI_SERIES) && | |
4463 | !instance->mask_interrupts) | |
4464 | ret = megasas_issue_blocked_cmd(instance, cmd, | |
4465 | MFI_IO_TIMEOUT_SECS); | |
4466 | else | |
4467 | ret = megasas_issue_polled(instance, cmd); | |
4468 | ||
4469 | switch (ret) { | |
4470 | case DCMD_FAILED: | |
4471 | dev_info(&instance->pdev->dev, "MR_DCMD_PD_LIST_QUERY " | |
4472 | "failed/not supported by firmware\n"); | |
4473 | ||
4474 | if (instance->adapter_type != MFI_SERIES) | |
4475 | megaraid_sas_kill_hba(instance); | |
4476 | else | |
4477 | instance->pd_list_not_supported = 1; | |
4478 | break; | |
4479 | case DCMD_TIMEOUT: | |
4480 | ||
4481 | switch (dcmd_timeout_ocr_possible(instance)) { | |
4482 | case INITIATE_OCR: | |
4483 | cmd->flags |= DRV_DCMD_SKIP_REFIRE; | |
4484 | /* | |
4485 | * DCMD failed from AEN path. | |
4486 | * AEN path already hold reset_mutex to avoid PCI access | |
4487 | * while OCR is in progress. | |
4488 | */ | |
4489 | mutex_unlock(&instance->reset_mutex); | |
4490 | megasas_reset_fusion(instance->host, | |
4491 | MFI_IO_TIMEOUT_OCR); | |
4492 | mutex_lock(&instance->reset_mutex); | |
4493 | break; | |
4494 | case KILL_ADAPTER: | |
4495 | megaraid_sas_kill_hba(instance); | |
4496 | break; | |
4497 | case IGNORE_TIMEOUT: | |
4498 | dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d \n", | |
4499 | __func__, __LINE__); | |
4500 | break; | |
4501 | } | |
4502 | ||
4503 | break; | |
4504 | ||
4505 | case DCMD_SUCCESS: | |
4506 | pd_addr = ci->addr; | |
4507 | if (megasas_dbg_lvl & LD_PD_DEBUG) | |
4508 | dev_info(&instance->pdev->dev, "%s, sysPD count: 0x%x\n", | |
4509 | __func__, le32_to_cpu(ci->count)); | |
4510 | ||
4511 | if ((le32_to_cpu(ci->count) > | |
4512 | (MEGASAS_MAX_PD_CHANNELS * MEGASAS_MAX_DEV_PER_CHANNEL))) | |
4513 | break; | |
4514 | ||
4515 | memset(instance->local_pd_list, 0, | |
4516 | MEGASAS_MAX_PD * sizeof(struct megasas_pd_list)); | |
4517 | ||
4518 | for (pd_index = 0; pd_index < le32_to_cpu(ci->count); pd_index++) { | |
4519 | instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].tid = | |
4520 | le16_to_cpu(pd_addr->deviceId); | |
4521 | instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].driveType = | |
4522 | pd_addr->scsiDevType; | |
4523 | instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].driveState = | |
4524 | MR_PD_STATE_SYSTEM; | |
4525 | if (megasas_dbg_lvl & LD_PD_DEBUG) | |
4526 | dev_info(&instance->pdev->dev, | |
4527 | "PD%d: targetID: 0x%03x deviceType:0x%x\n", | |
4528 | pd_index, le16_to_cpu(pd_addr->deviceId), | |
4529 | pd_addr->scsiDevType); | |
4530 | pd_addr++; | |
4531 | } | |
4532 | ||
4533 | memcpy(instance->pd_list, instance->local_pd_list, | |
4534 | sizeof(instance->pd_list)); | |
4535 | break; | |
4536 | ||
4537 | } | |
4538 | ||
4539 | if (ret != DCMD_TIMEOUT) | |
4540 | megasas_return_cmd(instance, cmd); | |
4541 | ||
4542 | return ret; | |
4543 | } | |
4544 | ||
4545 | /* | |
4546 | * megasas_get_ld_list_info - Returns FW's ld_list structure | |
4547 | * @instance: Adapter soft state | |
4548 | * @ld_list: ld_list structure | |
4549 | * | |
4550 | * Issues an internal command (DCMD) to get the FW's controller PD | |
4551 | * list structure. This information is mainly used to find out SYSTEM | |
4552 | * supported by the FW. | |
4553 | */ | |
4554 | static int | |
4555 | megasas_get_ld_list(struct megasas_instance *instance) | |
4556 | { | |
4557 | int ret = 0, ld_index = 0, ids = 0; | |
4558 | struct megasas_cmd *cmd; | |
4559 | struct megasas_dcmd_frame *dcmd; | |
4560 | struct MR_LD_LIST *ci; | |
4561 | dma_addr_t ci_h = 0; | |
4562 | u32 ld_count; | |
4563 | ||
4564 | ci = instance->ld_list_buf; | |
4565 | ci_h = instance->ld_list_buf_h; | |
4566 | ||
4567 | cmd = megasas_get_cmd(instance); | |
4568 | ||
4569 | if (!cmd) { | |
4570 | dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_list: Failed to get cmd\n"); | |
4571 | return -ENOMEM; | |
4572 | } | |
4573 | ||
4574 | dcmd = &cmd->frame->dcmd; | |
4575 | ||
4576 | memset(ci, 0, sizeof(*ci)); | |
4577 | memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); | |
4578 | ||
4579 | if (instance->supportmax256vd) | |
4580 | dcmd->mbox.b[0] = 1; | |
4581 | dcmd->cmd = MFI_CMD_DCMD; | |
4582 | dcmd->cmd_status = MFI_STAT_INVALID_STATUS; | |
4583 | dcmd->sge_count = 1; | |
4584 | dcmd->flags = MFI_FRAME_DIR_READ; | |
4585 | dcmd->timeout = 0; | |
4586 | dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_LD_LIST)); | |
4587 | dcmd->opcode = cpu_to_le32(MR_DCMD_LD_GET_LIST); | |
4588 | dcmd->pad_0 = 0; | |
4589 | ||
4590 | megasas_set_dma_settings(instance, dcmd, ci_h, | |
4591 | sizeof(struct MR_LD_LIST)); | |
4592 | ||
4593 | if ((instance->adapter_type != MFI_SERIES) && | |
4594 | !instance->mask_interrupts) | |
4595 | ret = megasas_issue_blocked_cmd(instance, cmd, | |
4596 | MFI_IO_TIMEOUT_SECS); | |
4597 | else | |
4598 | ret = megasas_issue_polled(instance, cmd); | |
4599 | ||
4600 | ld_count = le32_to_cpu(ci->ldCount); | |
4601 | ||
4602 | switch (ret) { | |
4603 | case DCMD_FAILED: | |
4604 | megaraid_sas_kill_hba(instance); | |
4605 | break; | |
4606 | case DCMD_TIMEOUT: | |
4607 | ||
4608 | switch (dcmd_timeout_ocr_possible(instance)) { | |
4609 | case INITIATE_OCR: | |
4610 | cmd->flags |= DRV_DCMD_SKIP_REFIRE; | |
4611 | /* | |
4612 | * DCMD failed from AEN path. | |
4613 | * AEN path already hold reset_mutex to avoid PCI access | |
4614 | * while OCR is in progress. | |
4615 | */ | |
4616 | mutex_unlock(&instance->reset_mutex); | |
4617 | megasas_reset_fusion(instance->host, | |
4618 | MFI_IO_TIMEOUT_OCR); | |
4619 | mutex_lock(&instance->reset_mutex); | |
4620 | break; | |
4621 | case KILL_ADAPTER: | |
4622 | megaraid_sas_kill_hba(instance); | |
4623 | break; | |
4624 | case IGNORE_TIMEOUT: | |
4625 | dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", | |
4626 | __func__, __LINE__); | |
4627 | break; | |
4628 | } | |
4629 | ||
4630 | break; | |
4631 | ||
4632 | case DCMD_SUCCESS: | |
4633 | if (megasas_dbg_lvl & LD_PD_DEBUG) | |
4634 | dev_info(&instance->pdev->dev, "%s, LD count: 0x%x\n", | |
4635 | __func__, ld_count); | |
4636 | ||
4637 | if (ld_count > instance->fw_supported_vd_count) | |
4638 | break; | |
4639 | ||
4640 | memset(instance->ld_ids, 0xff, MAX_LOGICAL_DRIVES_EXT); | |
4641 | ||
4642 | for (ld_index = 0; ld_index < ld_count; ld_index++) { | |
4643 | if (ci->ldList[ld_index].state != 0) { | |
4644 | ids = ci->ldList[ld_index].ref.targetId; | |
4645 | instance->ld_ids[ids] = ci->ldList[ld_index].ref.targetId; | |
4646 | if (megasas_dbg_lvl & LD_PD_DEBUG) | |
4647 | dev_info(&instance->pdev->dev, | |
4648 | "LD%d: targetID: 0x%03x\n", | |
4649 | ld_index, ids); | |
4650 | } | |
4651 | } | |
4652 | ||
4653 | break; | |
4654 | } | |
4655 | ||
4656 | if (ret != DCMD_TIMEOUT) | |
4657 | megasas_return_cmd(instance, cmd); | |
4658 | ||
4659 | return ret; | |
4660 | } | |
4661 | ||
4662 | /** | |
4663 | * megasas_ld_list_query - Returns FW's ld_list structure | |
4664 | * @instance: Adapter soft state | |
4665 | * @ld_list: ld_list structure | |
4666 | * | |
4667 | * Issues an internal command (DCMD) to get the FW's controller PD | |
4668 | * list structure. This information is mainly used to find out SYSTEM | |
4669 | * supported by the FW. | |
4670 | */ | |
4671 | static int | |
4672 | megasas_ld_list_query(struct megasas_instance *instance, u8 query_type) | |
4673 | { | |
4674 | int ret = 0, ld_index = 0, ids = 0; | |
4675 | struct megasas_cmd *cmd; | |
4676 | struct megasas_dcmd_frame *dcmd; | |
4677 | struct MR_LD_TARGETID_LIST *ci; | |
4678 | dma_addr_t ci_h = 0; | |
4679 | u32 tgtid_count; | |
4680 | ||
4681 | ci = instance->ld_targetid_list_buf; | |
4682 | ci_h = instance->ld_targetid_list_buf_h; | |
4683 | ||
4684 | cmd = megasas_get_cmd(instance); | |
4685 | ||
4686 | if (!cmd) { | |
4687 | dev_warn(&instance->pdev->dev, | |
4688 | "megasas_ld_list_query: Failed to get cmd\n"); | |
4689 | return -ENOMEM; | |
4690 | } | |
4691 | ||
4692 | dcmd = &cmd->frame->dcmd; | |
4693 | ||
4694 | memset(ci, 0, sizeof(*ci)); | |
4695 | memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); | |
4696 | ||
4697 | dcmd->mbox.b[0] = query_type; | |
4698 | if (instance->supportmax256vd) | |
4699 | dcmd->mbox.b[2] = 1; | |
4700 | ||
4701 | dcmd->cmd = MFI_CMD_DCMD; | |
4702 | dcmd->cmd_status = MFI_STAT_INVALID_STATUS; | |
4703 | dcmd->sge_count = 1; | |
4704 | dcmd->flags = MFI_FRAME_DIR_READ; | |
4705 | dcmd->timeout = 0; | |
4706 | dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_LD_TARGETID_LIST)); | |
4707 | dcmd->opcode = cpu_to_le32(MR_DCMD_LD_LIST_QUERY); | |
4708 | dcmd->pad_0 = 0; | |
4709 | ||
4710 | megasas_set_dma_settings(instance, dcmd, ci_h, | |
4711 | sizeof(struct MR_LD_TARGETID_LIST)); | |
4712 | ||
4713 | if ((instance->adapter_type != MFI_SERIES) && | |
4714 | !instance->mask_interrupts) | |
4715 | ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS); | |
4716 | else | |
4717 | ret = megasas_issue_polled(instance, cmd); | |
4718 | ||
4719 | switch (ret) { | |
4720 | case DCMD_FAILED: | |
4721 | dev_info(&instance->pdev->dev, | |
4722 | "DCMD not supported by firmware - %s %d\n", | |
4723 | __func__, __LINE__); | |
4724 | ret = megasas_get_ld_list(instance); | |
4725 | break; | |
4726 | case DCMD_TIMEOUT: | |
4727 | switch (dcmd_timeout_ocr_possible(instance)) { | |
4728 | case INITIATE_OCR: | |
4729 | cmd->flags |= DRV_DCMD_SKIP_REFIRE; | |
4730 | /* | |
4731 | * DCMD failed from AEN path. | |
4732 | * AEN path already hold reset_mutex to avoid PCI access | |
4733 | * while OCR is in progress. | |
4734 | */ | |
4735 | mutex_unlock(&instance->reset_mutex); | |
4736 | megasas_reset_fusion(instance->host, | |
4737 | MFI_IO_TIMEOUT_OCR); | |
4738 | mutex_lock(&instance->reset_mutex); | |
4739 | break; | |
4740 | case KILL_ADAPTER: | |
4741 | megaraid_sas_kill_hba(instance); | |
4742 | break; | |
4743 | case IGNORE_TIMEOUT: | |
4744 | dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", | |
4745 | __func__, __LINE__); | |
4746 | break; | |
4747 | } | |
4748 | ||
4749 | break; | |
4750 | case DCMD_SUCCESS: | |
4751 | tgtid_count = le32_to_cpu(ci->count); | |
4752 | ||
4753 | if (megasas_dbg_lvl & LD_PD_DEBUG) | |
4754 | dev_info(&instance->pdev->dev, "%s, LD count: 0x%x\n", | |
4755 | __func__, tgtid_count); | |
4756 | ||
4757 | if ((tgtid_count > (instance->fw_supported_vd_count))) | |
4758 | break; | |
4759 | ||
4760 | memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS); | |
4761 | for (ld_index = 0; ld_index < tgtid_count; ld_index++) { | |
4762 | ids = ci->targetId[ld_index]; | |
4763 | instance->ld_ids[ids] = ci->targetId[ld_index]; | |
4764 | if (megasas_dbg_lvl & LD_PD_DEBUG) | |
4765 | dev_info(&instance->pdev->dev, "LD%d: targetID: 0x%03x\n", | |
4766 | ld_index, ci->targetId[ld_index]); | |
4767 | } | |
4768 | ||
4769 | break; | |
4770 | } | |
4771 | ||
4772 | if (ret != DCMD_TIMEOUT) | |
4773 | megasas_return_cmd(instance, cmd); | |
4774 | ||
4775 | return ret; | |
4776 | } | |
4777 | ||
4778 | /** | |
4779 | * dcmd.opcode - MR_DCMD_CTRL_DEVICE_LIST_GET | |
4780 | * dcmd.mbox - reserved | |
4781 | * dcmd.sge IN - ptr to return MR_HOST_DEVICE_LIST structure | |
4782 | * Desc: This DCMD will return the combined device list | |
4783 | * Status: MFI_STAT_OK - List returned successfully | |
4784 | * MFI_STAT_INVALID_CMD - Firmware support for the feature has been | |
4785 | * disabled | |
4786 | * @instance: Adapter soft state | |
4787 | * @is_probe: Driver probe check | |
4788 | * Return: 0 if DCMD succeeded | |
4789 | * non-zero if failed | |
4790 | */ | |
4791 | static int | |
4792 | megasas_host_device_list_query(struct megasas_instance *instance, | |
4793 | bool is_probe) | |
4794 | { | |
4795 | int ret, i, target_id; | |
4796 | struct megasas_cmd *cmd; | |
4797 | struct megasas_dcmd_frame *dcmd; | |
4798 | struct MR_HOST_DEVICE_LIST *ci; | |
4799 | u32 count; | |
4800 | dma_addr_t ci_h; | |
4801 | ||
4802 | ci = instance->host_device_list_buf; | |
4803 | ci_h = instance->host_device_list_buf_h; | |
4804 | ||
4805 | cmd = megasas_get_cmd(instance); | |
4806 | ||
4807 | if (!cmd) { | |
4808 | dev_warn(&instance->pdev->dev, | |
4809 | "%s: failed to get cmd\n", | |
4810 | __func__); | |
4811 | return -ENOMEM; | |
4812 | } | |
4813 | ||
4814 | dcmd = &cmd->frame->dcmd; | |
4815 | ||
4816 | memset(ci, 0, sizeof(*ci)); | |
4817 | memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); | |
4818 | ||
4819 | dcmd->mbox.b[0] = is_probe ? 0 : 1; | |
4820 | dcmd->cmd = MFI_CMD_DCMD; | |
4821 | dcmd->cmd_status = MFI_STAT_INVALID_STATUS; | |
4822 | dcmd->sge_count = 1; | |
4823 | dcmd->flags = MFI_FRAME_DIR_READ; | |
4824 | dcmd->timeout = 0; | |
4825 | dcmd->pad_0 = 0; | |
4826 | dcmd->data_xfer_len = cpu_to_le32(HOST_DEVICE_LIST_SZ); | |
4827 | dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_DEVICE_LIST_GET); | |
4828 | ||
4829 | megasas_set_dma_settings(instance, dcmd, ci_h, HOST_DEVICE_LIST_SZ); | |
4830 | ||
4831 | if (!instance->mask_interrupts) { | |
4832 | ret = megasas_issue_blocked_cmd(instance, cmd, | |
4833 | MFI_IO_TIMEOUT_SECS); | |
4834 | } else { | |
4835 | ret = megasas_issue_polled(instance, cmd); | |
4836 | cmd->flags |= DRV_DCMD_SKIP_REFIRE; | |
4837 | } | |
4838 | ||
4839 | switch (ret) { | |
4840 | case DCMD_SUCCESS: | |
4841 | /* Fill the internal pd_list and ld_ids array based on | |
4842 | * targetIds returned by FW | |
4843 | */ | |
4844 | count = le32_to_cpu(ci->count); | |
4845 | ||
4846 | if (count > (MEGASAS_MAX_PD + MAX_LOGICAL_DRIVES_EXT)) | |
4847 | break; | |
4848 | ||
4849 | if (megasas_dbg_lvl & LD_PD_DEBUG) | |
4850 | dev_info(&instance->pdev->dev, "%s, Device count: 0x%x\n", | |
4851 | __func__, count); | |
4852 | ||
4853 | memset(instance->local_pd_list, 0, | |
4854 | MEGASAS_MAX_PD * sizeof(struct megasas_pd_list)); | |
4855 | memset(instance->ld_ids, 0xff, MAX_LOGICAL_DRIVES_EXT); | |
4856 | for (i = 0; i < count; i++) { | |
4857 | target_id = le16_to_cpu(ci->host_device_list[i].target_id); | |
4858 | if (ci->host_device_list[i].flags.u.bits.is_sys_pd) { | |
4859 | instance->local_pd_list[target_id].tid = target_id; | |
4860 | instance->local_pd_list[target_id].driveType = | |
4861 | ci->host_device_list[i].scsi_type; | |
4862 | instance->local_pd_list[target_id].driveState = | |
4863 | MR_PD_STATE_SYSTEM; | |
4864 | if (megasas_dbg_lvl & LD_PD_DEBUG) | |
4865 | dev_info(&instance->pdev->dev, | |
4866 | "Device %d: PD targetID: 0x%03x deviceType:0x%x\n", | |
4867 | i, target_id, ci->host_device_list[i].scsi_type); | |
4868 | } else { | |
4869 | instance->ld_ids[target_id] = target_id; | |
4870 | if (megasas_dbg_lvl & LD_PD_DEBUG) | |
4871 | dev_info(&instance->pdev->dev, | |
4872 | "Device %d: LD targetID: 0x%03x\n", | |
4873 | i, target_id); | |
4874 | } | |
4875 | } | |
4876 | ||
4877 | memcpy(instance->pd_list, instance->local_pd_list, | |
4878 | sizeof(instance->pd_list)); | |
4879 | break; | |
4880 | ||
4881 | case DCMD_TIMEOUT: | |
4882 | switch (dcmd_timeout_ocr_possible(instance)) { | |
4883 | case INITIATE_OCR: | |
4884 | cmd->flags |= DRV_DCMD_SKIP_REFIRE; | |
4885 | mutex_unlock(&instance->reset_mutex); | |
4886 | megasas_reset_fusion(instance->host, | |
4887 | MFI_IO_TIMEOUT_OCR); | |
4888 | mutex_lock(&instance->reset_mutex); | |
4889 | break; | |
4890 | case KILL_ADAPTER: | |
4891 | megaraid_sas_kill_hba(instance); | |
4892 | break; | |
4893 | case IGNORE_TIMEOUT: | |
4894 | dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", | |
4895 | __func__, __LINE__); | |
4896 | break; | |
4897 | } | |
4898 | break; | |
4899 | case DCMD_FAILED: | |
4900 | dev_err(&instance->pdev->dev, | |
4901 | "%s: MR_DCMD_CTRL_DEVICE_LIST_GET failed\n", | |
4902 | __func__); | |
4903 | break; | |
4904 | } | |
4905 | ||
4906 | if (ret != DCMD_TIMEOUT) | |
4907 | megasas_return_cmd(instance, cmd); | |
4908 | ||
4909 | return ret; | |
4910 | } | |
4911 | ||
4912 | /* | |
4913 | * megasas_update_ext_vd_details : Update details w.r.t Extended VD | |
4914 | * instance : Controller's instance | |
4915 | */ | |
4916 | static void megasas_update_ext_vd_details(struct megasas_instance *instance) | |
4917 | { | |
4918 | struct fusion_context *fusion; | |
4919 | u32 ventura_map_sz = 0; | |
4920 | ||
4921 | fusion = instance->ctrl_context; | |
4922 | /* For MFI based controllers return dummy success */ | |
4923 | if (!fusion) | |
4924 | return; | |
4925 | ||
4926 | instance->supportmax256vd = | |
4927 | instance->ctrl_info_buf->adapterOperations3.supportMaxExtLDs; | |
4928 | /* Below is additional check to address future FW enhancement */ | |
4929 | if (instance->ctrl_info_buf->max_lds > 64) | |
4930 | instance->supportmax256vd = 1; | |
4931 | ||
4932 | instance->drv_supported_vd_count = MEGASAS_MAX_LD_CHANNELS | |
4933 | * MEGASAS_MAX_DEV_PER_CHANNEL; | |
4934 | instance->drv_supported_pd_count = MEGASAS_MAX_PD_CHANNELS | |
4935 | * MEGASAS_MAX_DEV_PER_CHANNEL; | |
4936 | if (instance->supportmax256vd) { | |
4937 | instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES_EXT; | |
4938 | instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES; | |
4939 | } else { | |
4940 | instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES; | |
4941 | instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES; | |
4942 | } | |
4943 | ||
4944 | dev_info(&instance->pdev->dev, | |
4945 | "FW provided supportMaxExtLDs: %d\tmax_lds: %d\n", | |
4946 | instance->ctrl_info_buf->adapterOperations3.supportMaxExtLDs ? 1 : 0, | |
4947 | instance->ctrl_info_buf->max_lds); | |
4948 | ||
4949 | if (instance->max_raid_mapsize) { | |
4950 | ventura_map_sz = instance->max_raid_mapsize * | |
4951 | MR_MIN_MAP_SIZE; /* 64k */ | |
4952 | fusion->current_map_sz = ventura_map_sz; | |
4953 | fusion->max_map_sz = ventura_map_sz; | |
4954 | } else { | |
4955 | fusion->old_map_sz = sizeof(struct MR_FW_RAID_MAP) + | |
4956 | (sizeof(struct MR_LD_SPAN_MAP) * | |
4957 | (instance->fw_supported_vd_count - 1)); | |
4958 | fusion->new_map_sz = sizeof(struct MR_FW_RAID_MAP_EXT); | |
4959 | ||
4960 | fusion->max_map_sz = | |
4961 | max(fusion->old_map_sz, fusion->new_map_sz); | |
4962 | ||
4963 | if (instance->supportmax256vd) | |
4964 | fusion->current_map_sz = fusion->new_map_sz; | |
4965 | else | |
4966 | fusion->current_map_sz = fusion->old_map_sz; | |
4967 | } | |
4968 | /* irrespective of FW raid maps, driver raid map is constant */ | |
4969 | fusion->drv_map_sz = sizeof(struct MR_DRV_RAID_MAP_ALL); | |
4970 | } | |
4971 | ||
4972 | /* | |
4973 | * dcmd.opcode - MR_DCMD_CTRL_SNAPDUMP_GET_PROPERTIES | |
4974 | * dcmd.hdr.length - number of bytes to read | |
4975 | * dcmd.sge - Ptr to MR_SNAPDUMP_PROPERTIES | |
4976 | * Desc: Fill in snapdump properties | |
4977 | * Status: MFI_STAT_OK- Command successful | |
4978 | */ | |
4979 | void megasas_get_snapdump_properties(struct megasas_instance *instance) | |
4980 | { | |
4981 | int ret = 0; | |
4982 | struct megasas_cmd *cmd; | |
4983 | struct megasas_dcmd_frame *dcmd; | |
4984 | struct MR_SNAPDUMP_PROPERTIES *ci; | |
4985 | dma_addr_t ci_h = 0; | |
4986 | ||
4987 | ci = instance->snapdump_prop; | |
4988 | ci_h = instance->snapdump_prop_h; | |
4989 | ||
4990 | if (!ci) | |
4991 | return; | |
4992 | ||
4993 | cmd = megasas_get_cmd(instance); | |
4994 | ||
4995 | if (!cmd) { | |
4996 | dev_dbg(&instance->pdev->dev, "Failed to get a free cmd\n"); | |
4997 | return; | |
4998 | } | |
4999 | ||
5000 | dcmd = &cmd->frame->dcmd; | |
5001 | ||
5002 | memset(ci, 0, sizeof(*ci)); | |
5003 | memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); | |
5004 | ||
5005 | dcmd->cmd = MFI_CMD_DCMD; | |
5006 | dcmd->cmd_status = MFI_STAT_INVALID_STATUS; | |
5007 | dcmd->sge_count = 1; | |
5008 | dcmd->flags = MFI_FRAME_DIR_READ; | |
5009 | dcmd->timeout = 0; | |
5010 | dcmd->pad_0 = 0; | |
5011 | dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_SNAPDUMP_PROPERTIES)); | |
5012 | dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_SNAPDUMP_GET_PROPERTIES); | |
5013 | ||
5014 | megasas_set_dma_settings(instance, dcmd, ci_h, | |
5015 | sizeof(struct MR_SNAPDUMP_PROPERTIES)); | |
5016 | ||
5017 | if (!instance->mask_interrupts) { | |
5018 | ret = megasas_issue_blocked_cmd(instance, cmd, | |
5019 | MFI_IO_TIMEOUT_SECS); | |
5020 | } else { | |
5021 | ret = megasas_issue_polled(instance, cmd); | |
5022 | cmd->flags |= DRV_DCMD_SKIP_REFIRE; | |
5023 | } | |
5024 | ||
5025 | switch (ret) { | |
5026 | case DCMD_SUCCESS: | |
5027 | instance->snapdump_wait_time = | |
5028 | min_t(u8, ci->trigger_min_num_sec_before_ocr, | |
5029 | MEGASAS_MAX_SNAP_DUMP_WAIT_TIME); | |
5030 | break; | |
5031 | ||
5032 | case DCMD_TIMEOUT: | |
5033 | switch (dcmd_timeout_ocr_possible(instance)) { | |
5034 | case INITIATE_OCR: | |
5035 | cmd->flags |= DRV_DCMD_SKIP_REFIRE; | |
5036 | mutex_unlock(&instance->reset_mutex); | |
5037 | megasas_reset_fusion(instance->host, | |
5038 | MFI_IO_TIMEOUT_OCR); | |
5039 | mutex_lock(&instance->reset_mutex); | |
5040 | break; | |
5041 | case KILL_ADAPTER: | |
5042 | megaraid_sas_kill_hba(instance); | |
5043 | break; | |
5044 | case IGNORE_TIMEOUT: | |
5045 | dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", | |
5046 | __func__, __LINE__); | |
5047 | break; | |
5048 | } | |
5049 | } | |
5050 | ||
5051 | if (ret != DCMD_TIMEOUT) | |
5052 | megasas_return_cmd(instance, cmd); | |
5053 | } | |
5054 | ||
5055 | /** | |
5056 | * megasas_get_controller_info - Returns FW's controller structure | |
5057 | * @instance: Adapter soft state | |
5058 | * | |
5059 | * Issues an internal command (DCMD) to get the FW's controller structure. | |
5060 | * This information is mainly used to find out the maximum IO transfer per | |
5061 | * command supported by the FW. | |
5062 | */ | |
5063 | int | |
5064 | megasas_get_ctrl_info(struct megasas_instance *instance) | |
5065 | { | |
5066 | int ret = 0; | |
5067 | struct megasas_cmd *cmd; | |
5068 | struct megasas_dcmd_frame *dcmd; | |
5069 | struct megasas_ctrl_info *ci; | |
5070 | dma_addr_t ci_h = 0; | |
5071 | ||
5072 | ci = instance->ctrl_info_buf; | |
5073 | ci_h = instance->ctrl_info_buf_h; | |
5074 | ||
5075 | cmd = megasas_get_cmd(instance); | |
5076 | ||
5077 | if (!cmd) { | |
5078 | dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to get a free cmd\n"); | |
5079 | return -ENOMEM; | |
5080 | } | |
5081 | ||
5082 | dcmd = &cmd->frame->dcmd; | |
5083 | ||
5084 | memset(ci, 0, sizeof(*ci)); | |
5085 | memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); | |
5086 | ||
5087 | dcmd->cmd = MFI_CMD_DCMD; | |
5088 | dcmd->cmd_status = MFI_STAT_INVALID_STATUS; | |
5089 | dcmd->sge_count = 1; | |
5090 | dcmd->flags = MFI_FRAME_DIR_READ; | |
5091 | dcmd->timeout = 0; | |
5092 | dcmd->pad_0 = 0; | |
5093 | dcmd->data_xfer_len = cpu_to_le32(sizeof(struct megasas_ctrl_info)); | |
5094 | dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_GET_INFO); | |
5095 | dcmd->mbox.b[0] = 1; | |
5096 | ||
5097 | megasas_set_dma_settings(instance, dcmd, ci_h, | |
5098 | sizeof(struct megasas_ctrl_info)); | |
5099 | ||
5100 | if ((instance->adapter_type != MFI_SERIES) && | |
5101 | !instance->mask_interrupts) { | |
5102 | ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS); | |
5103 | } else { | |
5104 | ret = megasas_issue_polled(instance, cmd); | |
5105 | cmd->flags |= DRV_DCMD_SKIP_REFIRE; | |
5106 | } | |
5107 | ||
5108 | switch (ret) { | |
5109 | case DCMD_SUCCESS: | |
5110 | /* Save required controller information in | |
5111 | * CPU endianness format. | |
5112 | */ | |
5113 | le32_to_cpus((u32 *)&ci->properties.OnOffProperties); | |
5114 | le16_to_cpus((u16 *)&ci->properties.on_off_properties2); | |
5115 | le32_to_cpus((u32 *)&ci->adapterOperations2); | |
5116 | le32_to_cpus((u32 *)&ci->adapterOperations3); | |
5117 | le16_to_cpus((u16 *)&ci->adapter_operations4); | |
5118 | le32_to_cpus((u32 *)&ci->adapter_operations5); | |
5119 | ||
5120 | /* Update the latest Ext VD info. | |
5121 | * From Init path, store current firmware details. | |
5122 | * From OCR path, detect any firmware properties changes. | |
5123 | * in case of Firmware upgrade without system reboot. | |
5124 | */ | |
5125 | megasas_update_ext_vd_details(instance); | |
5126 | instance->support_seqnum_jbod_fp = | |
5127 | ci->adapterOperations3.useSeqNumJbodFP; | |
5128 | instance->support_morethan256jbod = | |
5129 | ci->adapter_operations4.support_pd_map_target_id; | |
5130 | instance->support_nvme_passthru = | |
5131 | ci->adapter_operations4.support_nvme_passthru; | |
5132 | instance->support_pci_lane_margining = | |
5133 | ci->adapter_operations5.support_pci_lane_margining; | |
5134 | instance->task_abort_tmo = ci->TaskAbortTO; | |
5135 | instance->max_reset_tmo = ci->MaxResetTO; | |
5136 | ||
5137 | /*Check whether controller is iMR or MR */ | |
5138 | instance->is_imr = (ci->memory_size ? 0 : 1); | |
5139 | ||
5140 | instance->snapdump_wait_time = | |
5141 | (ci->properties.on_off_properties2.enable_snap_dump ? | |
5142 | MEGASAS_DEFAULT_SNAP_DUMP_WAIT_TIME : 0); | |
5143 | ||
5144 | instance->enable_fw_dev_list = | |
5145 | ci->properties.on_off_properties2.enable_fw_dev_list; | |
5146 | ||
5147 | dev_info(&instance->pdev->dev, | |
5148 | "controller type\t: %s(%dMB)\n", | |
5149 | instance->is_imr ? "iMR" : "MR", | |
5150 | le16_to_cpu(ci->memory_size)); | |
5151 | ||
5152 | instance->disableOnlineCtrlReset = | |
5153 | ci->properties.OnOffProperties.disableOnlineCtrlReset; | |
5154 | instance->secure_jbod_support = | |
5155 | ci->adapterOperations3.supportSecurityonJBOD; | |
5156 | dev_info(&instance->pdev->dev, "Online Controller Reset(OCR)\t: %s\n", | |
5157 | instance->disableOnlineCtrlReset ? "Disabled" : "Enabled"); | |
5158 | dev_info(&instance->pdev->dev, "Secure JBOD support\t: %s\n", | |
5159 | instance->secure_jbod_support ? "Yes" : "No"); | |
5160 | dev_info(&instance->pdev->dev, "NVMe passthru support\t: %s\n", | |
5161 | instance->support_nvme_passthru ? "Yes" : "No"); | |
5162 | dev_info(&instance->pdev->dev, | |
5163 | "FW provided TM TaskAbort/Reset timeout\t: %d secs/%d secs\n", | |
5164 | instance->task_abort_tmo, instance->max_reset_tmo); | |
5165 | dev_info(&instance->pdev->dev, "JBOD sequence map support\t: %s\n", | |
5166 | instance->support_seqnum_jbod_fp ? "Yes" : "No"); | |
5167 | dev_info(&instance->pdev->dev, "PCI Lane Margining support\t: %s\n", | |
5168 | instance->support_pci_lane_margining ? "Yes" : "No"); | |
5169 | ||
5170 | break; | |
5171 | ||
5172 | case DCMD_TIMEOUT: | |
5173 | switch (dcmd_timeout_ocr_possible(instance)) { | |
5174 | case INITIATE_OCR: | |
5175 | cmd->flags |= DRV_DCMD_SKIP_REFIRE; | |
5176 | mutex_unlock(&instance->reset_mutex); | |
5177 | megasas_reset_fusion(instance->host, | |
5178 | MFI_IO_TIMEOUT_OCR); | |
5179 | mutex_lock(&instance->reset_mutex); | |
5180 | break; | |
5181 | case KILL_ADAPTER: | |
5182 | megaraid_sas_kill_hba(instance); | |
5183 | break; | |
5184 | case IGNORE_TIMEOUT: | |
5185 | dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", | |
5186 | __func__, __LINE__); | |
5187 | break; | |
5188 | } | |
5189 | break; | |
5190 | case DCMD_FAILED: | |
5191 | megaraid_sas_kill_hba(instance); | |
5192 | break; | |
5193 | ||
5194 | } | |
5195 | ||
5196 | if (ret != DCMD_TIMEOUT) | |
5197 | megasas_return_cmd(instance, cmd); | |
5198 | ||
5199 | return ret; | |
5200 | } | |
5201 | ||
5202 | /* | |
5203 | * megasas_set_crash_dump_params - Sends address of crash dump DMA buffer | |
5204 | * to firmware | |
5205 | * | |
5206 | * @instance: Adapter soft state | |
5207 | * @crash_buf_state - tell FW to turn ON/OFF crash dump feature | |
5208 | MR_CRASH_BUF_TURN_OFF = 0 | |
5209 | MR_CRASH_BUF_TURN_ON = 1 | |
5210 | * @return 0 on success non-zero on failure. | |
5211 | * Issues an internal command (DCMD) to set parameters for crash dump feature. | |
5212 | * Driver will send address of crash dump DMA buffer and set mbox to tell FW | |
5213 | * that driver supports crash dump feature. This DCMD will be sent only if | |
5214 | * crash dump feature is supported by the FW. | |
5215 | * | |
5216 | */ | |
5217 | int megasas_set_crash_dump_params(struct megasas_instance *instance, | |
5218 | u8 crash_buf_state) | |
5219 | { | |
5220 | int ret = 0; | |
5221 | struct megasas_cmd *cmd; | |
5222 | struct megasas_dcmd_frame *dcmd; | |
5223 | ||
5224 | cmd = megasas_get_cmd(instance); | |
5225 | ||
5226 | if (!cmd) { | |
5227 | dev_err(&instance->pdev->dev, "Failed to get a free cmd\n"); | |
5228 | return -ENOMEM; | |
5229 | } | |
5230 | ||
5231 | ||
5232 | dcmd = &cmd->frame->dcmd; | |
5233 | ||
5234 | memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); | |
5235 | dcmd->mbox.b[0] = crash_buf_state; | |
5236 | dcmd->cmd = MFI_CMD_DCMD; | |
5237 | dcmd->cmd_status = MFI_STAT_INVALID_STATUS; | |
5238 | dcmd->sge_count = 1; | |
5239 | dcmd->flags = MFI_FRAME_DIR_NONE; | |
5240 | dcmd->timeout = 0; | |
5241 | dcmd->pad_0 = 0; | |
5242 | dcmd->data_xfer_len = cpu_to_le32(CRASH_DMA_BUF_SIZE); | |
5243 | dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_SET_CRASH_DUMP_PARAMS); | |
5244 | ||
5245 | megasas_set_dma_settings(instance, dcmd, instance->crash_dump_h, | |
5246 | CRASH_DMA_BUF_SIZE); | |
5247 | ||
5248 | if ((instance->adapter_type != MFI_SERIES) && | |
5249 | !instance->mask_interrupts) | |
5250 | ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS); | |
5251 | else | |
5252 | ret = megasas_issue_polled(instance, cmd); | |
5253 | ||
5254 | if (ret == DCMD_TIMEOUT) { | |
5255 | switch (dcmd_timeout_ocr_possible(instance)) { | |
5256 | case INITIATE_OCR: | |
5257 | cmd->flags |= DRV_DCMD_SKIP_REFIRE; | |
5258 | megasas_reset_fusion(instance->host, | |
5259 | MFI_IO_TIMEOUT_OCR); | |
5260 | break; | |
5261 | case KILL_ADAPTER: | |
5262 | megaraid_sas_kill_hba(instance); | |
5263 | break; | |
5264 | case IGNORE_TIMEOUT: | |
5265 | dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", | |
5266 | __func__, __LINE__); | |
5267 | break; | |
5268 | } | |
5269 | } else | |
5270 | megasas_return_cmd(instance, cmd); | |
5271 | ||
5272 | return ret; | |
5273 | } | |
5274 | ||
5275 | /** | |
5276 | * megasas_issue_init_mfi - Initializes the FW | |
5277 | * @instance: Adapter soft state | |
5278 | * | |
5279 | * Issues the INIT MFI cmd | |
5280 | */ | |
5281 | static int | |
5282 | megasas_issue_init_mfi(struct megasas_instance *instance) | |
5283 | { | |
5284 | __le32 context; | |
5285 | struct megasas_cmd *cmd; | |
5286 | struct megasas_init_frame *init_frame; | |
5287 | struct megasas_init_queue_info *initq_info; | |
5288 | dma_addr_t init_frame_h; | |
5289 | dma_addr_t initq_info_h; | |
5290 | ||
5291 | /* | |
5292 | * Prepare a init frame. Note the init frame points to queue info | |
5293 | * structure. Each frame has SGL allocated after first 64 bytes. For | |
5294 | * this frame - since we don't need any SGL - we use SGL's space as | |
5295 | * queue info structure | |
5296 | * | |
5297 | * We will not get a NULL command below. We just created the pool. | |
5298 | */ | |
5299 | cmd = megasas_get_cmd(instance); | |
5300 | ||
5301 | init_frame = (struct megasas_init_frame *)cmd->frame; | |
5302 | initq_info = (struct megasas_init_queue_info *) | |
5303 | ((unsigned long)init_frame + 64); | |
5304 | ||
5305 | init_frame_h = cmd->frame_phys_addr; | |
5306 | initq_info_h = init_frame_h + 64; | |
5307 | ||
5308 | context = init_frame->context; | |
5309 | memset(init_frame, 0, MEGAMFI_FRAME_SIZE); | |
5310 | memset(initq_info, 0, sizeof(struct megasas_init_queue_info)); | |
5311 | init_frame->context = context; | |
5312 | ||
5313 | initq_info->reply_queue_entries = cpu_to_le32(instance->max_fw_cmds + 1); | |
5314 | initq_info->reply_queue_start_phys_addr_lo = cpu_to_le32(instance->reply_queue_h); | |
5315 | ||
5316 | initq_info->producer_index_phys_addr_lo = cpu_to_le32(instance->producer_h); | |
5317 | initq_info->consumer_index_phys_addr_lo = cpu_to_le32(instance->consumer_h); | |
5318 | ||
5319 | init_frame->cmd = MFI_CMD_INIT; | |
5320 | init_frame->cmd_status = MFI_STAT_INVALID_STATUS; | |
5321 | init_frame->queue_info_new_phys_addr_lo = | |
5322 | cpu_to_le32(lower_32_bits(initq_info_h)); | |
5323 | init_frame->queue_info_new_phys_addr_hi = | |
5324 | cpu_to_le32(upper_32_bits(initq_info_h)); | |
5325 | ||
5326 | init_frame->data_xfer_len = cpu_to_le32(sizeof(struct megasas_init_queue_info)); | |
5327 | ||
5328 | /* | |
5329 | * disable the intr before firing the init frame to FW | |
5330 | */ | |
5331 | instance->instancet->disable_intr(instance); | |
5332 | ||
5333 | /* | |
5334 | * Issue the init frame in polled mode | |
5335 | */ | |
5336 | ||
5337 | if (megasas_issue_polled(instance, cmd)) { | |
5338 | dev_err(&instance->pdev->dev, "Failed to init firmware\n"); | |
5339 | megasas_return_cmd(instance, cmd); | |
5340 | goto fail_fw_init; | |
5341 | } | |
5342 | ||
5343 | megasas_return_cmd(instance, cmd); | |
5344 | ||
5345 | return 0; | |
5346 | ||
5347 | fail_fw_init: | |
5348 | return -EINVAL; | |
5349 | } | |
5350 | ||
5351 | static u32 | |
5352 | megasas_init_adapter_mfi(struct megasas_instance *instance) | |
5353 | { | |
5354 | u32 context_sz; | |
5355 | u32 reply_q_sz; | |
5356 | ||
5357 | /* | |
5358 | * Get various operational parameters from status register | |
5359 | */ | |
5360 | instance->max_fw_cmds = instance->instancet->read_fw_status_reg(instance) & 0x00FFFF; | |
5361 | /* | |
5362 | * Reduce the max supported cmds by 1. This is to ensure that the | |
5363 | * reply_q_sz (1 more than the max cmd that driver may send) | |
5364 | * does not exceed max cmds that the FW can support | |
5365 | */ | |
5366 | instance->max_fw_cmds = instance->max_fw_cmds-1; | |
5367 | instance->max_mfi_cmds = instance->max_fw_cmds; | |
5368 | instance->max_num_sge = (instance->instancet->read_fw_status_reg(instance) & 0xFF0000) >> | |
5369 | 0x10; | |
5370 | /* | |
5371 | * For MFI skinny adapters, MEGASAS_SKINNY_INT_CMDS commands | |
5372 | * are reserved for IOCTL + driver's internal DCMDs. | |
5373 | */ | |
5374 | if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) || | |
5375 | (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY)) { | |
5376 | instance->max_scsi_cmds = (instance->max_fw_cmds - | |
5377 | MEGASAS_SKINNY_INT_CMDS); | |
5378 | sema_init(&instance->ioctl_sem, MEGASAS_SKINNY_INT_CMDS); | |
5379 | } else { | |
5380 | instance->max_scsi_cmds = (instance->max_fw_cmds - | |
5381 | MEGASAS_INT_CMDS); | |
5382 | sema_init(&instance->ioctl_sem, (MEGASAS_MFI_IOCTL_CMDS)); | |
5383 | } | |
5384 | ||
5385 | instance->cur_can_queue = instance->max_scsi_cmds; | |
5386 | /* | |
5387 | * Create a pool of commands | |
5388 | */ | |
5389 | if (megasas_alloc_cmds(instance)) | |
5390 | goto fail_alloc_cmds; | |
5391 | ||
5392 | /* | |
5393 | * Allocate memory for reply queue. Length of reply queue should | |
5394 | * be _one_ more than the maximum commands handled by the firmware. | |
5395 | * | |
5396 | * Note: When FW completes commands, it places corresponding contex | |
5397 | * values in this circular reply queue. This circular queue is a fairly | |
5398 | * typical producer-consumer queue. FW is the producer (of completed | |
5399 | * commands) and the driver is the consumer. | |
5400 | */ | |
5401 | context_sz = sizeof(u32); | |
5402 | reply_q_sz = context_sz * (instance->max_fw_cmds + 1); | |
5403 | ||
5404 | instance->reply_queue = dma_alloc_coherent(&instance->pdev->dev, | |
5405 | reply_q_sz, &instance->reply_queue_h, GFP_KERNEL); | |
5406 | ||
5407 | if (!instance->reply_queue) { | |
5408 | dev_printk(KERN_DEBUG, &instance->pdev->dev, "Out of DMA mem for reply queue\n"); | |
5409 | goto fail_reply_queue; | |
5410 | } | |
5411 | ||
5412 | if (megasas_issue_init_mfi(instance)) | |
5413 | goto fail_fw_init; | |
5414 | ||
5415 | if (megasas_get_ctrl_info(instance)) { | |
5416 | dev_err(&instance->pdev->dev, "(%d): Could get controller info " | |
5417 | "Fail from %s %d\n", instance->unique_id, | |
5418 | __func__, __LINE__); | |
5419 | goto fail_fw_init; | |
5420 | } | |
5421 | ||
5422 | instance->fw_support_ieee = 0; | |
5423 | instance->fw_support_ieee = | |
5424 | (instance->instancet->read_fw_status_reg(instance) & | |
5425 | 0x04000000); | |
5426 | ||
5427 | dev_notice(&instance->pdev->dev, "megasas_init_mfi: fw_support_ieee=%d", | |
5428 | instance->fw_support_ieee); | |
5429 | ||
5430 | if (instance->fw_support_ieee) | |
5431 | instance->flag_ieee = 1; | |
5432 | ||
5433 | return 0; | |
5434 | ||
5435 | fail_fw_init: | |
5436 | ||
5437 | dma_free_coherent(&instance->pdev->dev, reply_q_sz, | |
5438 | instance->reply_queue, instance->reply_queue_h); | |
5439 | fail_reply_queue: | |
5440 | megasas_free_cmds(instance); | |
5441 | ||
5442 | fail_alloc_cmds: | |
5443 | return 1; | |
5444 | } | |
5445 | ||
5446 | static | |
5447 | void megasas_setup_irq_poll(struct megasas_instance *instance) | |
5448 | { | |
5449 | struct megasas_irq_context *irq_ctx; | |
5450 | u32 count, i; | |
5451 | ||
5452 | count = instance->msix_vectors > 0 ? instance->msix_vectors : 1; | |
5453 | ||
5454 | /* Initialize IRQ poll */ | |
5455 | for (i = 0; i < count; i++) { | |
5456 | irq_ctx = &instance->irq_context[i]; | |
5457 | irq_ctx->os_irq = pci_irq_vector(instance->pdev, i); | |
5458 | irq_ctx->irq_poll_scheduled = false; | |
5459 | irq_poll_init(&irq_ctx->irqpoll, | |
5460 | instance->threshold_reply_count, | |
5461 | megasas_irqpoll); | |
5462 | } | |
5463 | } | |
5464 | ||
5465 | /* | |
5466 | * megasas_setup_irqs_ioapic - register legacy interrupts. | |
5467 | * @instance: Adapter soft state | |
5468 | * | |
5469 | * Do not enable interrupt, only setup ISRs. | |
5470 | * | |
5471 | * Return 0 on success. | |
5472 | */ | |
5473 | static int | |
5474 | megasas_setup_irqs_ioapic(struct megasas_instance *instance) | |
5475 | { | |
5476 | struct pci_dev *pdev; | |
5477 | ||
5478 | pdev = instance->pdev; | |
5479 | instance->irq_context[0].instance = instance; | |
5480 | instance->irq_context[0].MSIxIndex = 0; | |
5481 | if (request_irq(pci_irq_vector(pdev, 0), | |
5482 | instance->instancet->service_isr, IRQF_SHARED, | |
5483 | "megasas", &instance->irq_context[0])) { | |
5484 | dev_err(&instance->pdev->dev, | |
5485 | "Failed to register IRQ from %s %d\n", | |
5486 | __func__, __LINE__); | |
5487 | return -1; | |
5488 | } | |
5489 | instance->perf_mode = MR_LATENCY_PERF_MODE; | |
5490 | instance->low_latency_index_start = 0; | |
5491 | return 0; | |
5492 | } | |
5493 | ||
5494 | /** | |
5495 | * megasas_setup_irqs_msix - register MSI-x interrupts. | |
5496 | * @instance: Adapter soft state | |
5497 | * @is_probe: Driver probe check | |
5498 | * | |
5499 | * Do not enable interrupt, only setup ISRs. | |
5500 | * | |
5501 | * Return 0 on success. | |
5502 | */ | |
5503 | static int | |
5504 | megasas_setup_irqs_msix(struct megasas_instance *instance, u8 is_probe) | |
5505 | { | |
5506 | int i, j; | |
5507 | struct pci_dev *pdev; | |
5508 | ||
5509 | pdev = instance->pdev; | |
5510 | ||
5511 | /* Try MSI-x */ | |
5512 | for (i = 0; i < instance->msix_vectors; i++) { | |
5513 | instance->irq_context[i].instance = instance; | |
5514 | instance->irq_context[i].MSIxIndex = i; | |
5515 | if (request_irq(pci_irq_vector(pdev, i), | |
5516 | instance->instancet->service_isr, 0, "megasas", | |
5517 | &instance->irq_context[i])) { | |
5518 | dev_err(&instance->pdev->dev, | |
5519 | "Failed to register IRQ for vector %d.\n", i); | |
5520 | for (j = 0; j < i; j++) | |
5521 | free_irq(pci_irq_vector(pdev, j), | |
5522 | &instance->irq_context[j]); | |
5523 | /* Retry irq register for IO_APIC*/ | |
5524 | instance->msix_vectors = 0; | |
5525 | instance->msix_load_balance = false; | |
5526 | if (is_probe) { | |
5527 | pci_free_irq_vectors(instance->pdev); | |
5528 | return megasas_setup_irqs_ioapic(instance); | |
5529 | } else { | |
5530 | return -1; | |
5531 | } | |
5532 | } | |
5533 | } | |
5534 | ||
5535 | return 0; | |
5536 | } | |
5537 | ||
5538 | /* | |
5539 | * megasas_destroy_irqs- unregister interrupts. | |
5540 | * @instance: Adapter soft state | |
5541 | * return: void | |
5542 | */ | |
5543 | static void | |
5544 | megasas_destroy_irqs(struct megasas_instance *instance) { | |
5545 | ||
5546 | int i; | |
5547 | int count; | |
5548 | struct megasas_irq_context *irq_ctx; | |
5549 | ||
5550 | count = instance->msix_vectors > 0 ? instance->msix_vectors : 1; | |
5551 | if (instance->adapter_type != MFI_SERIES) { | |
5552 | for (i = 0; i < count; i++) { | |
5553 | irq_ctx = &instance->irq_context[i]; | |
5554 | irq_poll_disable(&irq_ctx->irqpoll); | |
5555 | } | |
5556 | } | |
5557 | ||
5558 | if (instance->msix_vectors) | |
5559 | for (i = 0; i < instance->msix_vectors; i++) { | |
5560 | free_irq(pci_irq_vector(instance->pdev, i), | |
5561 | &instance->irq_context[i]); | |
5562 | } | |
5563 | else | |
5564 | free_irq(pci_irq_vector(instance->pdev, 0), | |
5565 | &instance->irq_context[0]); | |
5566 | } | |
5567 | ||
5568 | /** | |
5569 | * megasas_setup_jbod_map - setup jbod map for FP seq_number. | |
5570 | * @instance: Adapter soft state | |
5571 | * @is_probe: Driver probe check | |
5572 | * | |
5573 | * Return 0 on success. | |
5574 | */ | |
5575 | void | |
5576 | megasas_setup_jbod_map(struct megasas_instance *instance) | |
5577 | { | |
5578 | int i; | |
5579 | struct fusion_context *fusion = instance->ctrl_context; | |
5580 | u32 pd_seq_map_sz; | |
5581 | ||
5582 | pd_seq_map_sz = sizeof(struct MR_PD_CFG_SEQ_NUM_SYNC) + | |
5583 | (sizeof(struct MR_PD_CFG_SEQ) * (MAX_PHYSICAL_DEVICES - 1)); | |
5584 | ||
5585 | instance->use_seqnum_jbod_fp = | |
5586 | instance->support_seqnum_jbod_fp; | |
5587 | if (reset_devices || !fusion || | |
5588 | !instance->support_seqnum_jbod_fp) { | |
5589 | dev_info(&instance->pdev->dev, | |
5590 | "JBOD sequence map is disabled %s %d\n", | |
5591 | __func__, __LINE__); | |
5592 | instance->use_seqnum_jbod_fp = false; | |
5593 | return; | |
5594 | } | |
5595 | ||
5596 | if (fusion->pd_seq_sync[0]) | |
5597 | goto skip_alloc; | |
5598 | ||
5599 | for (i = 0; i < JBOD_MAPS_COUNT; i++) { | |
5600 | fusion->pd_seq_sync[i] = dma_alloc_coherent | |
5601 | (&instance->pdev->dev, pd_seq_map_sz, | |
5602 | &fusion->pd_seq_phys[i], GFP_KERNEL); | |
5603 | if (!fusion->pd_seq_sync[i]) { | |
5604 | dev_err(&instance->pdev->dev, | |
5605 | "Failed to allocate memory from %s %d\n", | |
5606 | __func__, __LINE__); | |
5607 | if (i == 1) { | |
5608 | dma_free_coherent(&instance->pdev->dev, | |
5609 | pd_seq_map_sz, fusion->pd_seq_sync[0], | |
5610 | fusion->pd_seq_phys[0]); | |
5611 | fusion->pd_seq_sync[0] = NULL; | |
5612 | } | |
5613 | instance->use_seqnum_jbod_fp = false; | |
5614 | return; | |
5615 | } | |
5616 | } | |
5617 | ||
5618 | skip_alloc: | |
5619 | if (!megasas_sync_pd_seq_num(instance, false) && | |
5620 | !megasas_sync_pd_seq_num(instance, true)) | |
5621 | instance->use_seqnum_jbod_fp = true; | |
5622 | else | |
5623 | instance->use_seqnum_jbod_fp = false; | |
5624 | } | |
5625 | ||
5626 | static void megasas_setup_reply_map(struct megasas_instance *instance) | |
5627 | { | |
5628 | const struct cpumask *mask; | |
5629 | unsigned int queue, cpu, low_latency_index_start; | |
5630 | ||
5631 | low_latency_index_start = instance->low_latency_index_start; | |
5632 | ||
5633 | for (queue = low_latency_index_start; queue < instance->msix_vectors; queue++) { | |
5634 | mask = pci_irq_get_affinity(instance->pdev, queue); | |
5635 | if (!mask) | |
5636 | goto fallback; | |
5637 | ||
5638 | for_each_cpu(cpu, mask) | |
5639 | instance->reply_map[cpu] = queue; | |
5640 | } | |
5641 | return; | |
5642 | ||
5643 | fallback: | |
5644 | queue = low_latency_index_start; | |
5645 | for_each_possible_cpu(cpu) { | |
5646 | instance->reply_map[cpu] = queue; | |
5647 | if (queue == (instance->msix_vectors - 1)) | |
5648 | queue = low_latency_index_start; | |
5649 | else | |
5650 | queue++; | |
5651 | } | |
5652 | } | |
5653 | ||
5654 | /** | |
5655 | * megasas_get_device_list - Get the PD and LD device list from FW. | |
5656 | * @instance: Adapter soft state | |
5657 | * @return: Success or failure | |
5658 | * | |
5659 | * Issue DCMDs to Firmware to get the PD and LD list. | |
5660 | * Based on the FW support, driver sends the HOST_DEVICE_LIST or combination | |
5661 | * of PD_LIST/LD_LIST_QUERY DCMDs to get the device list. | |
5662 | */ | |
5663 | static | |
5664 | int megasas_get_device_list(struct megasas_instance *instance) | |
5665 | { | |
5666 | memset(instance->pd_list, 0, | |
5667 | (MEGASAS_MAX_PD * sizeof(struct megasas_pd_list))); | |
5668 | memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS); | |
5669 | ||
5670 | if (instance->enable_fw_dev_list) { | |
5671 | if (megasas_host_device_list_query(instance, true)) | |
5672 | return FAILED; | |
5673 | } else { | |
5674 | if (megasas_get_pd_list(instance) < 0) { | |
5675 | dev_err(&instance->pdev->dev, "failed to get PD list\n"); | |
5676 | return FAILED; | |
5677 | } | |
5678 | ||
5679 | if (megasas_ld_list_query(instance, | |
5680 | MR_LD_QUERY_TYPE_EXPOSED_TO_HOST)) { | |
5681 | dev_err(&instance->pdev->dev, "failed to get LD list\n"); | |
5682 | return FAILED; | |
5683 | } | |
5684 | } | |
5685 | ||
5686 | return SUCCESS; | |
5687 | } | |
5688 | ||
5689 | /** | |
5690 | * megasas_set_high_iops_queue_affinity_hint - Set affinity hint for high IOPS queues | |
5691 | * @instance: Adapter soft state | |
5692 | * return: void | |
5693 | */ | |
5694 | static inline void | |
5695 | megasas_set_high_iops_queue_affinity_hint(struct megasas_instance *instance) | |
5696 | { | |
5697 | int i; | |
5698 | int local_numa_node; | |
5699 | ||
5700 | if (instance->perf_mode == MR_BALANCED_PERF_MODE) { | |
5701 | local_numa_node = dev_to_node(&instance->pdev->dev); | |
5702 | ||
5703 | for (i = 0; i < instance->low_latency_index_start; i++) | |
5704 | irq_set_affinity_hint(pci_irq_vector(instance->pdev, i), | |
5705 | cpumask_of_node(local_numa_node)); | |
5706 | } | |
5707 | } | |
5708 | ||
5709 | static int | |
5710 | __megasas_alloc_irq_vectors(struct megasas_instance *instance) | |
5711 | { | |
5712 | int i, irq_flags; | |
5713 | struct irq_affinity desc = { .pre_vectors = instance->low_latency_index_start }; | |
5714 | struct irq_affinity *descp = &desc; | |
5715 | ||
5716 | irq_flags = PCI_IRQ_MSIX; | |
5717 | ||
5718 | if (instance->smp_affinity_enable) | |
5719 | irq_flags |= PCI_IRQ_AFFINITY; | |
5720 | else | |
5721 | descp = NULL; | |
5722 | ||
5723 | i = pci_alloc_irq_vectors_affinity(instance->pdev, | |
5724 | instance->low_latency_index_start, | |
5725 | instance->msix_vectors, irq_flags, descp); | |
5726 | ||
5727 | return i; | |
5728 | } | |
5729 | ||
5730 | /** | |
5731 | * megasas_alloc_irq_vectors - Allocate IRQ vectors/enable MSI-x vectors | |
5732 | * @instance: Adapter soft state | |
5733 | * return: void | |
5734 | */ | |
5735 | static void | |
5736 | megasas_alloc_irq_vectors(struct megasas_instance *instance) | |
5737 | { | |
5738 | int i; | |
5739 | unsigned int num_msix_req; | |
5740 | ||
5741 | i = __megasas_alloc_irq_vectors(instance); | |
5742 | ||
5743 | if ((instance->perf_mode == MR_BALANCED_PERF_MODE) && | |
5744 | (i != instance->msix_vectors)) { | |
5745 | if (instance->msix_vectors) | |
5746 | pci_free_irq_vectors(instance->pdev); | |
5747 | /* Disable Balanced IOPS mode and try realloc vectors */ | |
5748 | instance->perf_mode = MR_LATENCY_PERF_MODE; | |
5749 | instance->low_latency_index_start = 1; | |
5750 | num_msix_req = num_online_cpus() + instance->low_latency_index_start; | |
5751 | ||
5752 | instance->msix_vectors = min(num_msix_req, | |
5753 | instance->msix_vectors); | |
5754 | ||
5755 | i = __megasas_alloc_irq_vectors(instance); | |
5756 | ||
5757 | } | |
5758 | ||
5759 | dev_info(&instance->pdev->dev, | |
5760 | "requested/available msix %d/%d\n", instance->msix_vectors, i); | |
5761 | ||
5762 | if (i > 0) | |
5763 | instance->msix_vectors = i; | |
5764 | else | |
5765 | instance->msix_vectors = 0; | |
5766 | ||
5767 | if (instance->smp_affinity_enable) | |
5768 | megasas_set_high_iops_queue_affinity_hint(instance); | |
5769 | } | |
5770 | ||
5771 | /** | |
5772 | * megasas_init_fw - Initializes the FW | |
5773 | * @instance: Adapter soft state | |
5774 | * | |
5775 | * This is the main function for initializing firmware | |
5776 | */ | |
5777 | ||
5778 | static int megasas_init_fw(struct megasas_instance *instance) | |
5779 | { | |
5780 | u32 max_sectors_1; | |
5781 | u32 max_sectors_2, tmp_sectors, msix_enable; | |
5782 | u32 scratch_pad_1, scratch_pad_2, scratch_pad_3, status_reg; | |
5783 | resource_size_t base_addr; | |
5784 | void *base_addr_phys; | |
5785 | struct megasas_ctrl_info *ctrl_info = NULL; | |
5786 | unsigned long bar_list; | |
5787 | int i, j, loop; | |
5788 | struct IOV_111 *iovPtr; | |
5789 | struct fusion_context *fusion; | |
5790 | bool intr_coalescing; | |
5791 | unsigned int num_msix_req; | |
5792 | u16 lnksta, speed; | |
5793 | ||
5794 | fusion = instance->ctrl_context; | |
5795 | ||
5796 | /* Find first memory bar */ | |
5797 | bar_list = pci_select_bars(instance->pdev, IORESOURCE_MEM); | |
5798 | instance->bar = find_first_bit(&bar_list, BITS_PER_LONG); | |
5799 | if (pci_request_selected_regions(instance->pdev, 1<<instance->bar, | |
5800 | "megasas: LSI")) { | |
5801 | dev_printk(KERN_DEBUG, &instance->pdev->dev, "IO memory region busy!\n"); | |
5802 | return -EBUSY; | |
5803 | } | |
5804 | ||
5805 | base_addr = pci_resource_start(instance->pdev, instance->bar); | |
5806 | instance->reg_set = ioremap_nocache(base_addr, 8192); | |
5807 | ||
5808 | if (!instance->reg_set) { | |
5809 | dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to map IO mem\n"); | |
5810 | goto fail_ioremap; | |
5811 | } | |
5812 | ||
5813 | base_addr_phys = &base_addr; | |
5814 | dev_printk(KERN_DEBUG, &instance->pdev->dev, | |
5815 | "BAR:0x%lx BAR's base_addr(phys):%pa mapped virt_addr:0x%p\n", | |
5816 | instance->bar, base_addr_phys, instance->reg_set); | |
5817 | ||
5818 | if (instance->adapter_type != MFI_SERIES) | |
5819 | instance->instancet = &megasas_instance_template_fusion; | |
5820 | else { | |
5821 | switch (instance->pdev->device) { | |
5822 | case PCI_DEVICE_ID_LSI_SAS1078R: | |
5823 | case PCI_DEVICE_ID_LSI_SAS1078DE: | |
5824 | instance->instancet = &megasas_instance_template_ppc; | |
5825 | break; | |
5826 | case PCI_DEVICE_ID_LSI_SAS1078GEN2: | |
5827 | case PCI_DEVICE_ID_LSI_SAS0079GEN2: | |
5828 | instance->instancet = &megasas_instance_template_gen2; | |
5829 | break; | |
5830 | case PCI_DEVICE_ID_LSI_SAS0073SKINNY: | |
5831 | case PCI_DEVICE_ID_LSI_SAS0071SKINNY: | |
5832 | instance->instancet = &megasas_instance_template_skinny; | |
5833 | break; | |
5834 | case PCI_DEVICE_ID_LSI_SAS1064R: | |
5835 | case PCI_DEVICE_ID_DELL_PERC5: | |
5836 | default: | |
5837 | instance->instancet = &megasas_instance_template_xscale; | |
5838 | instance->pd_list_not_supported = 1; | |
5839 | break; | |
5840 | } | |
5841 | } | |
5842 | ||
5843 | if (megasas_transition_to_ready(instance, 0)) { | |
5844 | dev_info(&instance->pdev->dev, | |
5845 | "Failed to transition controller to ready from %s!\n", | |
5846 | __func__); | |
5847 | if (instance->adapter_type != MFI_SERIES) { | |
5848 | status_reg = instance->instancet->read_fw_status_reg( | |
5849 | instance); | |
5850 | if (status_reg & MFI_RESET_ADAPTER) { | |
5851 | if (megasas_adp_reset_wait_for_ready | |
5852 | (instance, true, 0) == FAILED) | |
5853 | goto fail_ready_state; | |
5854 | } else { | |
5855 | goto fail_ready_state; | |
5856 | } | |
5857 | } else { | |
5858 | atomic_set(&instance->fw_reset_no_pci_access, 1); | |
5859 | instance->instancet->adp_reset | |
5860 | (instance, instance->reg_set); | |
5861 | atomic_set(&instance->fw_reset_no_pci_access, 0); | |
5862 | ||
5863 | /*waiting for about 30 second before retry*/ | |
5864 | ssleep(30); | |
5865 | ||
5866 | if (megasas_transition_to_ready(instance, 0)) | |
5867 | goto fail_ready_state; | |
5868 | } | |
5869 | ||
5870 | dev_info(&instance->pdev->dev, | |
5871 | "FW restarted successfully from %s!\n", | |
5872 | __func__); | |
5873 | } | |
5874 | ||
5875 | megasas_init_ctrl_params(instance); | |
5876 | ||
5877 | if (megasas_set_dma_mask(instance)) | |
5878 | goto fail_ready_state; | |
5879 | ||
5880 | if (megasas_alloc_ctrl_mem(instance)) | |
5881 | goto fail_alloc_dma_buf; | |
5882 | ||
5883 | if (megasas_alloc_ctrl_dma_buffers(instance)) | |
5884 | goto fail_alloc_dma_buf; | |
5885 | ||
5886 | fusion = instance->ctrl_context; | |
5887 | ||
5888 | if (instance->adapter_type >= VENTURA_SERIES) { | |
5889 | scratch_pad_2 = | |
5890 | megasas_readl(instance, | |
5891 | &instance->reg_set->outbound_scratch_pad_2); | |
5892 | instance->max_raid_mapsize = ((scratch_pad_2 >> | |
5893 | MR_MAX_RAID_MAP_SIZE_OFFSET_SHIFT) & | |
5894 | MR_MAX_RAID_MAP_SIZE_MASK); | |
5895 | } | |
5896 | ||
5897 | switch (instance->adapter_type) { | |
5898 | case VENTURA_SERIES: | |
5899 | fusion->pcie_bw_limitation = true; | |
5900 | break; | |
5901 | case AERO_SERIES: | |
5902 | fusion->r56_div_offload = true; | |
5903 | break; | |
5904 | default: | |
5905 | break; | |
5906 | } | |
5907 | ||
5908 | /* Check if MSI-X is supported while in ready state */ | |
5909 | msix_enable = (instance->instancet->read_fw_status_reg(instance) & | |
5910 | 0x4000000) >> 0x1a; | |
5911 | if (msix_enable && !msix_disable) { | |
5912 | ||
5913 | scratch_pad_1 = megasas_readl | |
5914 | (instance, &instance->reg_set->outbound_scratch_pad_1); | |
5915 | /* Check max MSI-X vectors */ | |
5916 | if (fusion) { | |
5917 | if (instance->adapter_type == THUNDERBOLT_SERIES) { | |
5918 | /* Thunderbolt Series*/ | |
5919 | instance->msix_vectors = (scratch_pad_1 | |
5920 | & MR_MAX_REPLY_QUEUES_OFFSET) + 1; | |
5921 | } else { | |
5922 | instance->msix_vectors = ((scratch_pad_1 | |
5923 | & MR_MAX_REPLY_QUEUES_EXT_OFFSET) | |
5924 | >> MR_MAX_REPLY_QUEUES_EXT_OFFSET_SHIFT) + 1; | |
5925 | ||
5926 | /* | |
5927 | * For Invader series, > 8 MSI-x vectors | |
5928 | * supported by FW/HW implies combined | |
5929 | * reply queue mode is enabled. | |
5930 | * For Ventura series, > 16 MSI-x vectors | |
5931 | * supported by FW/HW implies combined | |
5932 | * reply queue mode is enabled. | |
5933 | */ | |
5934 | switch (instance->adapter_type) { | |
5935 | case INVADER_SERIES: | |
5936 | if (instance->msix_vectors > 8) | |
5937 | instance->msix_combined = true; | |
5938 | break; | |
5939 | case AERO_SERIES: | |
5940 | case VENTURA_SERIES: | |
5941 | if (instance->msix_vectors > 16) | |
5942 | instance->msix_combined = true; | |
5943 | break; | |
5944 | } | |
5945 | ||
5946 | if (rdpq_enable) | |
5947 | instance->is_rdpq = (scratch_pad_1 & MR_RDPQ_MODE_OFFSET) ? | |
5948 | 1 : 0; | |
5949 | ||
5950 | if (instance->adapter_type >= INVADER_SERIES && | |
5951 | !instance->msix_combined) { | |
5952 | instance->msix_load_balance = true; | |
5953 | instance->smp_affinity_enable = false; | |
5954 | } | |
5955 | ||
5956 | /* Save 1-15 reply post index address to local memory | |
5957 | * Index 0 is already saved from reg offset | |
5958 | * MPI2_REPLY_POST_HOST_INDEX_OFFSET | |
5959 | */ | |
5960 | for (loop = 1; loop < MR_MAX_MSIX_REG_ARRAY; loop++) { | |
5961 | instance->reply_post_host_index_addr[loop] = | |
5962 | (u32 __iomem *) | |
5963 | ((u8 __iomem *)instance->reg_set + | |
5964 | MPI2_SUP_REPLY_POST_HOST_INDEX_OFFSET | |
5965 | + (loop * 0x10)); | |
5966 | } | |
5967 | } | |
5968 | ||
5969 | dev_info(&instance->pdev->dev, | |
5970 | "firmware supports msix\t: (%d)", | |
5971 | instance->msix_vectors); | |
5972 | if (msix_vectors) | |
5973 | instance->msix_vectors = min(msix_vectors, | |
5974 | instance->msix_vectors); | |
5975 | } else /* MFI adapters */ | |
5976 | instance->msix_vectors = 1; | |
5977 | ||
5978 | ||
5979 | /* | |
5980 | * For Aero (if some conditions are met), driver will configure a | |
5981 | * few additional reply queues with interrupt coalescing enabled. | |
5982 | * These queues with interrupt coalescing enabled are called | |
5983 | * High IOPS queues and rest of reply queues (based on number of | |
5984 | * logical CPUs) are termed as Low latency queues. | |
5985 | * | |
5986 | * Total Number of reply queues = High IOPS queues + low latency queues | |
5987 | * | |
5988 | * For rest of fusion adapters, 1 additional reply queue will be | |
5989 | * reserved for management commands, rest of reply queues | |
5990 | * (based on number of logical CPUs) will be used for IOs and | |
5991 | * referenced as IO queues. | |
5992 | * Total Number of reply queues = 1 + IO queues | |
5993 | * | |
5994 | * MFI adapters supports single MSI-x so single reply queue | |
5995 | * will be used for IO and management commands. | |
5996 | */ | |
5997 | ||
5998 | intr_coalescing = (scratch_pad_1 & MR_INTR_COALESCING_SUPPORT_OFFSET) ? | |
5999 | true : false; | |
6000 | if (intr_coalescing && | |
6001 | (num_online_cpus() >= MR_HIGH_IOPS_QUEUE_COUNT) && | |
6002 | (instance->msix_vectors == MEGASAS_MAX_MSIX_QUEUES)) | |
6003 | instance->perf_mode = MR_BALANCED_PERF_MODE; | |
6004 | else | |
6005 | instance->perf_mode = MR_LATENCY_PERF_MODE; | |
6006 | ||
6007 | ||
6008 | if (instance->adapter_type == AERO_SERIES) { | |
6009 | pcie_capability_read_word(instance->pdev, PCI_EXP_LNKSTA, &lnksta); | |
6010 | speed = lnksta & PCI_EXP_LNKSTA_CLS; | |
6011 | ||
6012 | /* | |
6013 | * For Aero, if PCIe link speed is <16 GT/s, then driver should operate | |
6014 | * in latency perf mode and enable R1 PCI bandwidth algorithm | |
6015 | */ | |
6016 | if (speed < 0x4) { | |
6017 | instance->perf_mode = MR_LATENCY_PERF_MODE; | |
6018 | fusion->pcie_bw_limitation = true; | |
6019 | } | |
6020 | ||
6021 | /* | |
6022 | * Performance mode settings provided through module parameter-perf_mode will | |
6023 | * take affect only for: | |
6024 | * 1. Aero family of adapters. | |
6025 | * 2. When user sets module parameter- perf_mode in range of 0-2. | |
6026 | */ | |
6027 | if ((perf_mode >= MR_BALANCED_PERF_MODE) && | |
6028 | (perf_mode <= MR_LATENCY_PERF_MODE)) | |
6029 | instance->perf_mode = perf_mode; | |
6030 | /* | |
6031 | * If intr coalescing is not supported by controller FW, then IOPS | |
6032 | * and Balanced modes are not feasible. | |
6033 | */ | |
6034 | if (!intr_coalescing) | |
6035 | instance->perf_mode = MR_LATENCY_PERF_MODE; | |
6036 | ||
6037 | } | |
6038 | ||
6039 | if (instance->perf_mode == MR_BALANCED_PERF_MODE) | |
6040 | instance->low_latency_index_start = | |
6041 | MR_HIGH_IOPS_QUEUE_COUNT; | |
6042 | else | |
6043 | instance->low_latency_index_start = 1; | |
6044 | ||
6045 | num_msix_req = num_online_cpus() + instance->low_latency_index_start; | |
6046 | ||
6047 | instance->msix_vectors = min(num_msix_req, | |
6048 | instance->msix_vectors); | |
6049 | ||
6050 | megasas_alloc_irq_vectors(instance); | |
6051 | if (!instance->msix_vectors) | |
6052 | instance->msix_load_balance = false; | |
6053 | } | |
6054 | /* | |
6055 | * MSI-X host index 0 is common for all adapter. | |
6056 | * It is used for all MPT based Adapters. | |
6057 | */ | |
6058 | if (instance->msix_combined) { | |
6059 | instance->reply_post_host_index_addr[0] = | |
6060 | (u32 *)((u8 *)instance->reg_set + | |
6061 | MPI2_SUP_REPLY_POST_HOST_INDEX_OFFSET); | |
6062 | } else { | |
6063 | instance->reply_post_host_index_addr[0] = | |
6064 | (u32 *)((u8 *)instance->reg_set + | |
6065 | MPI2_REPLY_POST_HOST_INDEX_OFFSET); | |
6066 | } | |
6067 | ||
6068 | if (!instance->msix_vectors) { | |
6069 | i = pci_alloc_irq_vectors(instance->pdev, 1, 1, PCI_IRQ_LEGACY); | |
6070 | if (i < 0) | |
6071 | goto fail_init_adapter; | |
6072 | } | |
6073 | ||
6074 | megasas_setup_reply_map(instance); | |
6075 | ||
6076 | dev_info(&instance->pdev->dev, | |
6077 | "current msix/online cpus\t: (%d/%d)\n", | |
6078 | instance->msix_vectors, (unsigned int)num_online_cpus()); | |
6079 | dev_info(&instance->pdev->dev, | |
6080 | "RDPQ mode\t: (%s)\n", instance->is_rdpq ? "enabled" : "disabled"); | |
6081 | ||
6082 | tasklet_init(&instance->isr_tasklet, instance->instancet->tasklet, | |
6083 | (unsigned long)instance); | |
6084 | ||
6085 | /* | |
6086 | * Below are default value for legacy Firmware. | |
6087 | * non-fusion based controllers | |
6088 | */ | |
6089 | instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES; | |
6090 | instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES; | |
6091 | /* Get operational params, sge flags, send init cmd to controller */ | |
6092 | if (instance->instancet->init_adapter(instance)) | |
6093 | goto fail_init_adapter; | |
6094 | ||
6095 | if (instance->adapter_type >= VENTURA_SERIES) { | |
6096 | scratch_pad_3 = | |
6097 | megasas_readl(instance, | |
6098 | &instance->reg_set->outbound_scratch_pad_3); | |
6099 | if ((scratch_pad_3 & MR_NVME_PAGE_SIZE_MASK) >= | |
6100 | MR_DEFAULT_NVME_PAGE_SHIFT) | |
6101 | instance->nvme_page_size = | |
6102 | (1 << (scratch_pad_3 & MR_NVME_PAGE_SIZE_MASK)); | |
6103 | ||
6104 | dev_info(&instance->pdev->dev, | |
6105 | "NVME page size\t: (%d)\n", instance->nvme_page_size); | |
6106 | } | |
6107 | ||
6108 | if (instance->msix_vectors ? | |
6109 | megasas_setup_irqs_msix(instance, 1) : | |
6110 | megasas_setup_irqs_ioapic(instance)) | |
6111 | goto fail_init_adapter; | |
6112 | ||
6113 | if (instance->adapter_type != MFI_SERIES) | |
6114 | megasas_setup_irq_poll(instance); | |
6115 | ||
6116 | instance->instancet->enable_intr(instance); | |
6117 | ||
6118 | dev_info(&instance->pdev->dev, "INIT adapter done\n"); | |
6119 | ||
6120 | megasas_setup_jbod_map(instance); | |
6121 | ||
6122 | if (megasas_get_device_list(instance) != SUCCESS) { | |
6123 | dev_err(&instance->pdev->dev, | |
6124 | "%s: megasas_get_device_list failed\n", | |
6125 | __func__); | |
6126 | goto fail_get_ld_pd_list; | |
6127 | } | |
6128 | ||
6129 | /* stream detection initialization */ | |
6130 | if (instance->adapter_type >= VENTURA_SERIES) { | |
6131 | fusion->stream_detect_by_ld = | |
6132 | kcalloc(MAX_LOGICAL_DRIVES_EXT, | |
6133 | sizeof(struct LD_STREAM_DETECT *), | |
6134 | GFP_KERNEL); | |
6135 | if (!fusion->stream_detect_by_ld) { | |
6136 | dev_err(&instance->pdev->dev, | |
6137 | "unable to allocate stream detection for pool of LDs\n"); | |
6138 | goto fail_get_ld_pd_list; | |
6139 | } | |
6140 | for (i = 0; i < MAX_LOGICAL_DRIVES_EXT; ++i) { | |
6141 | fusion->stream_detect_by_ld[i] = | |
6142 | kzalloc(sizeof(struct LD_STREAM_DETECT), | |
6143 | GFP_KERNEL); | |
6144 | if (!fusion->stream_detect_by_ld[i]) { | |
6145 | dev_err(&instance->pdev->dev, | |
6146 | "unable to allocate stream detect by LD\n "); | |
6147 | for (j = 0; j < i; ++j) | |
6148 | kfree(fusion->stream_detect_by_ld[j]); | |
6149 | kfree(fusion->stream_detect_by_ld); | |
6150 | fusion->stream_detect_by_ld = NULL; | |
6151 | goto fail_get_ld_pd_list; | |
6152 | } | |
6153 | fusion->stream_detect_by_ld[i]->mru_bit_map | |
6154 | = MR_STREAM_BITMAP; | |
6155 | } | |
6156 | } | |
6157 | ||
6158 | /* | |
6159 | * Compute the max allowed sectors per IO: The controller info has two | |
6160 | * limits on max sectors. Driver should use the minimum of these two. | |
6161 | * | |
6162 | * 1 << stripe_sz_ops.min = max sectors per strip | |
6163 | * | |
6164 | * Note that older firmwares ( < FW ver 30) didn't report information | |
6165 | * to calculate max_sectors_1. So the number ended up as zero always. | |
6166 | */ | |
6167 | tmp_sectors = 0; | |
6168 | ctrl_info = instance->ctrl_info_buf; | |
6169 | ||
6170 | max_sectors_1 = (1 << ctrl_info->stripe_sz_ops.min) * | |
6171 | le16_to_cpu(ctrl_info->max_strips_per_io); | |
6172 | max_sectors_2 = le32_to_cpu(ctrl_info->max_request_size); | |
6173 | ||
6174 | tmp_sectors = min_t(u32, max_sectors_1, max_sectors_2); | |
6175 | ||
6176 | instance->peerIsPresent = ctrl_info->cluster.peerIsPresent; | |
6177 | instance->passive = ctrl_info->cluster.passive; | |
6178 | memcpy(instance->clusterId, ctrl_info->clusterId, sizeof(instance->clusterId)); | |
6179 | instance->UnevenSpanSupport = | |
6180 | ctrl_info->adapterOperations2.supportUnevenSpans; | |
6181 | if (instance->UnevenSpanSupport) { | |
6182 | struct fusion_context *fusion = instance->ctrl_context; | |
6183 | if (MR_ValidateMapInfo(instance, instance->map_id)) | |
6184 | fusion->fast_path_io = 1; | |
6185 | else | |
6186 | fusion->fast_path_io = 0; | |
6187 | ||
6188 | } | |
6189 | if (ctrl_info->host_interface.SRIOV) { | |
6190 | instance->requestorId = ctrl_info->iov.requestorId; | |
6191 | if (instance->pdev->device == PCI_DEVICE_ID_LSI_PLASMA) { | |
6192 | if (!ctrl_info->adapterOperations2.activePassive) | |
6193 | instance->PlasmaFW111 = 1; | |
6194 | ||
6195 | dev_info(&instance->pdev->dev, "SR-IOV: firmware type: %s\n", | |
6196 | instance->PlasmaFW111 ? "1.11" : "new"); | |
6197 | ||
6198 | if (instance->PlasmaFW111) { | |
6199 | iovPtr = (struct IOV_111 *) | |
6200 | ((unsigned char *)ctrl_info + IOV_111_OFFSET); | |
6201 | instance->requestorId = iovPtr->requestorId; | |
6202 | } | |
6203 | } | |
6204 | dev_info(&instance->pdev->dev, "SRIOV: VF requestorId %d\n", | |
6205 | instance->requestorId); | |
6206 | } | |
6207 | ||
6208 | instance->crash_dump_fw_support = | |
6209 | ctrl_info->adapterOperations3.supportCrashDump; | |
6210 | instance->crash_dump_drv_support = | |
6211 | (instance->crash_dump_fw_support && | |
6212 | instance->crash_dump_buf); | |
6213 | if (instance->crash_dump_drv_support) | |
6214 | megasas_set_crash_dump_params(instance, | |
6215 | MR_CRASH_BUF_TURN_OFF); | |
6216 | ||
6217 | else { | |
6218 | if (instance->crash_dump_buf) | |
6219 | dma_free_coherent(&instance->pdev->dev, | |
6220 | CRASH_DMA_BUF_SIZE, | |
6221 | instance->crash_dump_buf, | |
6222 | instance->crash_dump_h); | |
6223 | instance->crash_dump_buf = NULL; | |
6224 | } | |
6225 | ||
6226 | if (instance->snapdump_wait_time) { | |
6227 | megasas_get_snapdump_properties(instance); | |
6228 | dev_info(&instance->pdev->dev, "Snap dump wait time\t: %d\n", | |
6229 | instance->snapdump_wait_time); | |
6230 | } | |
6231 | ||
6232 | dev_info(&instance->pdev->dev, | |
6233 | "pci id\t\t: (0x%04x)/(0x%04x)/(0x%04x)/(0x%04x)\n", | |
6234 | le16_to_cpu(ctrl_info->pci.vendor_id), | |
6235 | le16_to_cpu(ctrl_info->pci.device_id), | |
6236 | le16_to_cpu(ctrl_info->pci.sub_vendor_id), | |
6237 | le16_to_cpu(ctrl_info->pci.sub_device_id)); | |
6238 | dev_info(&instance->pdev->dev, "unevenspan support : %s\n", | |
6239 | instance->UnevenSpanSupport ? "yes" : "no"); | |
6240 | dev_info(&instance->pdev->dev, "firmware crash dump : %s\n", | |
6241 | instance->crash_dump_drv_support ? "yes" : "no"); | |
6242 | dev_info(&instance->pdev->dev, "JBOD sequence map : %s\n", | |
6243 | instance->use_seqnum_jbod_fp ? "enabled" : "disabled"); | |
6244 | ||
6245 | instance->max_sectors_per_req = instance->max_num_sge * | |
6246 | SGE_BUFFER_SIZE / 512; | |
6247 | if (tmp_sectors && (instance->max_sectors_per_req > tmp_sectors)) | |
6248 | instance->max_sectors_per_req = tmp_sectors; | |
6249 | ||
6250 | /* Check for valid throttlequeuedepth module parameter */ | |
6251 | if (throttlequeuedepth && | |
6252 | throttlequeuedepth <= instance->max_scsi_cmds) | |
6253 | instance->throttlequeuedepth = throttlequeuedepth; | |
6254 | else | |
6255 | instance->throttlequeuedepth = | |
6256 | MEGASAS_THROTTLE_QUEUE_DEPTH; | |
6257 | ||
6258 | if ((resetwaittime < 1) || | |
6259 | (resetwaittime > MEGASAS_RESET_WAIT_TIME)) | |
6260 | resetwaittime = MEGASAS_RESET_WAIT_TIME; | |
6261 | ||
6262 | if ((scmd_timeout < 10) || (scmd_timeout > MEGASAS_DEFAULT_CMD_TIMEOUT)) | |
6263 | scmd_timeout = MEGASAS_DEFAULT_CMD_TIMEOUT; | |
6264 | ||
6265 | /* Launch SR-IOV heartbeat timer */ | |
6266 | if (instance->requestorId) { | |
6267 | if (!megasas_sriov_start_heartbeat(instance, 1)) { | |
6268 | megasas_start_timer(instance); | |
6269 | } else { | |
6270 | instance->skip_heartbeat_timer_del = 1; | |
6271 | goto fail_get_ld_pd_list; | |
6272 | } | |
6273 | } | |
6274 | ||
6275 | /* | |
6276 | * Create and start watchdog thread which will monitor | |
6277 | * controller state every 1 sec and trigger OCR when | |
6278 | * it enters fault state | |
6279 | */ | |
6280 | if (instance->adapter_type != MFI_SERIES) | |
6281 | if (megasas_fusion_start_watchdog(instance) != SUCCESS) | |
6282 | goto fail_start_watchdog; | |
6283 | ||
6284 | return 0; | |
6285 | ||
6286 | fail_start_watchdog: | |
6287 | if (instance->requestorId && !instance->skip_heartbeat_timer_del) | |
6288 | del_timer_sync(&instance->sriov_heartbeat_timer); | |
6289 | fail_get_ld_pd_list: | |
6290 | instance->instancet->disable_intr(instance); | |
6291 | megasas_destroy_irqs(instance); | |
6292 | fail_init_adapter: | |
6293 | if (instance->msix_vectors) | |
6294 | pci_free_irq_vectors(instance->pdev); | |
6295 | instance->msix_vectors = 0; | |
6296 | fail_alloc_dma_buf: | |
6297 | megasas_free_ctrl_dma_buffers(instance); | |
6298 | megasas_free_ctrl_mem(instance); | |
6299 | fail_ready_state: | |
6300 | iounmap(instance->reg_set); | |
6301 | ||
6302 | fail_ioremap: | |
6303 | pci_release_selected_regions(instance->pdev, 1<<instance->bar); | |
6304 | ||
6305 | dev_err(&instance->pdev->dev, "Failed from %s %d\n", | |
6306 | __func__, __LINE__); | |
6307 | return -EINVAL; | |
6308 | } | |
6309 | ||
6310 | /** | |
6311 | * megasas_release_mfi - Reverses the FW initialization | |
6312 | * @instance: Adapter soft state | |
6313 | */ | |
6314 | static void megasas_release_mfi(struct megasas_instance *instance) | |
6315 | { | |
6316 | u32 reply_q_sz = sizeof(u32) *(instance->max_mfi_cmds + 1); | |
6317 | ||
6318 | if (instance->reply_queue) | |
6319 | dma_free_coherent(&instance->pdev->dev, reply_q_sz, | |
6320 | instance->reply_queue, instance->reply_queue_h); | |
6321 | ||
6322 | megasas_free_cmds(instance); | |
6323 | ||
6324 | iounmap(instance->reg_set); | |
6325 | ||
6326 | pci_release_selected_regions(instance->pdev, 1<<instance->bar); | |
6327 | } | |
6328 | ||
6329 | /** | |
6330 | * megasas_get_seq_num - Gets latest event sequence numbers | |
6331 | * @instance: Adapter soft state | |
6332 | * @eli: FW event log sequence numbers information | |
6333 | * | |
6334 | * FW maintains a log of all events in a non-volatile area. Upper layers would | |
6335 | * usually find out the latest sequence number of the events, the seq number at | |
6336 | * the boot etc. They would "read" all the events below the latest seq number | |
6337 | * by issuing a direct fw cmd (DCMD). For the future events (beyond latest seq | |
6338 | * number), they would subsribe to AEN (asynchronous event notification) and | |
6339 | * wait for the events to happen. | |
6340 | */ | |
6341 | static int | |
6342 | megasas_get_seq_num(struct megasas_instance *instance, | |
6343 | struct megasas_evt_log_info *eli) | |
6344 | { | |
6345 | struct megasas_cmd *cmd; | |
6346 | struct megasas_dcmd_frame *dcmd; | |
6347 | struct megasas_evt_log_info *el_info; | |
6348 | dma_addr_t el_info_h = 0; | |
6349 | int ret; | |
6350 | ||
6351 | cmd = megasas_get_cmd(instance); | |
6352 | ||
6353 | if (!cmd) { | |
6354 | return -ENOMEM; | |
6355 | } | |
6356 | ||
6357 | dcmd = &cmd->frame->dcmd; | |
6358 | el_info = dma_alloc_coherent(&instance->pdev->dev, | |
6359 | sizeof(struct megasas_evt_log_info), | |
6360 | &el_info_h, GFP_KERNEL); | |
6361 | if (!el_info) { | |
6362 | megasas_return_cmd(instance, cmd); | |
6363 | return -ENOMEM; | |
6364 | } | |
6365 | ||
6366 | memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); | |
6367 | ||
6368 | dcmd->cmd = MFI_CMD_DCMD; | |
6369 | dcmd->cmd_status = 0x0; | |
6370 | dcmd->sge_count = 1; | |
6371 | dcmd->flags = MFI_FRAME_DIR_READ; | |
6372 | dcmd->timeout = 0; | |
6373 | dcmd->pad_0 = 0; | |
6374 | dcmd->data_xfer_len = cpu_to_le32(sizeof(struct megasas_evt_log_info)); | |
6375 | dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_EVENT_GET_INFO); | |
6376 | ||
6377 | megasas_set_dma_settings(instance, dcmd, el_info_h, | |
6378 | sizeof(struct megasas_evt_log_info)); | |
6379 | ||
6380 | ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS); | |
6381 | if (ret != DCMD_SUCCESS) { | |
6382 | dev_err(&instance->pdev->dev, "Failed from %s %d\n", | |
6383 | __func__, __LINE__); | |
6384 | goto dcmd_failed; | |
6385 | } | |
6386 | ||
6387 | /* | |
6388 | * Copy the data back into callers buffer | |
6389 | */ | |
6390 | eli->newest_seq_num = el_info->newest_seq_num; | |
6391 | eli->oldest_seq_num = el_info->oldest_seq_num; | |
6392 | eli->clear_seq_num = el_info->clear_seq_num; | |
6393 | eli->shutdown_seq_num = el_info->shutdown_seq_num; | |
6394 | eli->boot_seq_num = el_info->boot_seq_num; | |
6395 | ||
6396 | dcmd_failed: | |
6397 | dma_free_coherent(&instance->pdev->dev, | |
6398 | sizeof(struct megasas_evt_log_info), | |
6399 | el_info, el_info_h); | |
6400 | ||
6401 | megasas_return_cmd(instance, cmd); | |
6402 | ||
6403 | return ret; | |
6404 | } | |
6405 | ||
6406 | /** | |
6407 | * megasas_register_aen - Registers for asynchronous event notification | |
6408 | * @instance: Adapter soft state | |
6409 | * @seq_num: The starting sequence number | |
6410 | * @class_locale: Class of the event | |
6411 | * | |
6412 | * This function subscribes for AEN for events beyond the @seq_num. It requests | |
6413 | * to be notified if and only if the event is of type @class_locale | |
6414 | */ | |
6415 | static int | |
6416 | megasas_register_aen(struct megasas_instance *instance, u32 seq_num, | |
6417 | u32 class_locale_word) | |
6418 | { | |
6419 | int ret_val; | |
6420 | struct megasas_cmd *cmd; | |
6421 | struct megasas_dcmd_frame *dcmd; | |
6422 | union megasas_evt_class_locale curr_aen; | |
6423 | union megasas_evt_class_locale prev_aen; | |
6424 | ||
6425 | /* | |
6426 | * If there an AEN pending already (aen_cmd), check if the | |
6427 | * class_locale of that pending AEN is inclusive of the new | |
6428 | * AEN request we currently have. If it is, then we don't have | |
6429 | * to do anything. In other words, whichever events the current | |
6430 | * AEN request is subscribing to, have already been subscribed | |
6431 | * to. | |
6432 | * | |
6433 | * If the old_cmd is _not_ inclusive, then we have to abort | |
6434 | * that command, form a class_locale that is superset of both | |
6435 | * old and current and re-issue to the FW | |
6436 | */ | |
6437 | ||
6438 | curr_aen.word = class_locale_word; | |
6439 | ||
6440 | if (instance->aen_cmd) { | |
6441 | ||
6442 | prev_aen.word = | |
6443 | le32_to_cpu(instance->aen_cmd->frame->dcmd.mbox.w[1]); | |
6444 | ||
6445 | if ((curr_aen.members.class < MFI_EVT_CLASS_DEBUG) || | |
6446 | (curr_aen.members.class > MFI_EVT_CLASS_DEAD)) { | |
6447 | dev_info(&instance->pdev->dev, | |
6448 | "%s %d out of range class %d send by application\n", | |
6449 | __func__, __LINE__, curr_aen.members.class); | |
6450 | return 0; | |
6451 | } | |
6452 | ||
6453 | /* | |
6454 | * A class whose enum value is smaller is inclusive of all | |
6455 | * higher values. If a PROGRESS (= -1) was previously | |
6456 | * registered, then a new registration requests for higher | |
6457 | * classes need not be sent to FW. They are automatically | |
6458 | * included. | |
6459 | * | |
6460 | * Locale numbers don't have such hierarchy. They are bitmap | |
6461 | * values | |
6462 | */ | |
6463 | if ((prev_aen.members.class <= curr_aen.members.class) && | |
6464 | !((prev_aen.members.locale & curr_aen.members.locale) ^ | |
6465 | curr_aen.members.locale)) { | |
6466 | /* | |
6467 | * Previously issued event registration includes | |
6468 | * current request. Nothing to do. | |
6469 | */ | |
6470 | return 0; | |
6471 | } else { | |
6472 | curr_aen.members.locale |= prev_aen.members.locale; | |
6473 | ||
6474 | if (prev_aen.members.class < curr_aen.members.class) | |
6475 | curr_aen.members.class = prev_aen.members.class; | |
6476 | ||
6477 | instance->aen_cmd->abort_aen = 1; | |
6478 | ret_val = megasas_issue_blocked_abort_cmd(instance, | |
6479 | instance-> | |
6480 | aen_cmd, 30); | |
6481 | ||
6482 | if (ret_val) { | |
6483 | dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to abort " | |
6484 | "previous AEN command\n"); | |
6485 | return ret_val; | |
6486 | } | |
6487 | } | |
6488 | } | |
6489 | ||
6490 | cmd = megasas_get_cmd(instance); | |
6491 | ||
6492 | if (!cmd) | |
6493 | return -ENOMEM; | |
6494 | ||
6495 | dcmd = &cmd->frame->dcmd; | |
6496 | ||
6497 | memset(instance->evt_detail, 0, sizeof(struct megasas_evt_detail)); | |
6498 | ||
6499 | /* | |
6500 | * Prepare DCMD for aen registration | |
6501 | */ | |
6502 | memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); | |
6503 | ||
6504 | dcmd->cmd = MFI_CMD_DCMD; | |
6505 | dcmd->cmd_status = 0x0; | |
6506 | dcmd->sge_count = 1; | |
6507 | dcmd->flags = MFI_FRAME_DIR_READ; | |
6508 | dcmd->timeout = 0; | |
6509 | dcmd->pad_0 = 0; | |
6510 | dcmd->data_xfer_len = cpu_to_le32(sizeof(struct megasas_evt_detail)); | |
6511 | dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_EVENT_WAIT); | |
6512 | dcmd->mbox.w[0] = cpu_to_le32(seq_num); | |
6513 | instance->last_seq_num = seq_num; | |
6514 | dcmd->mbox.w[1] = cpu_to_le32(curr_aen.word); | |
6515 | ||
6516 | megasas_set_dma_settings(instance, dcmd, instance->evt_detail_h, | |
6517 | sizeof(struct megasas_evt_detail)); | |
6518 | ||
6519 | if (instance->aen_cmd != NULL) { | |
6520 | megasas_return_cmd(instance, cmd); | |
6521 | return 0; | |
6522 | } | |
6523 | ||
6524 | /* | |
6525 | * Store reference to the cmd used to register for AEN. When an | |
6526 | * application wants us to register for AEN, we have to abort this | |
6527 | * cmd and re-register with a new EVENT LOCALE supplied by that app | |
6528 | */ | |
6529 | instance->aen_cmd = cmd; | |
6530 | ||
6531 | /* | |
6532 | * Issue the aen registration frame | |
6533 | */ | |
6534 | instance->instancet->issue_dcmd(instance, cmd); | |
6535 | ||
6536 | return 0; | |
6537 | } | |
6538 | ||
6539 | /* megasas_get_target_prop - Send DCMD with below details to firmware. | |
6540 | * | |
6541 | * This DCMD will fetch few properties of LD/system PD defined | |
6542 | * in MR_TARGET_DEV_PROPERTIES. eg. Queue Depth, MDTS value. | |
6543 | * | |
6544 | * DCMD send by drivers whenever new target is added to the OS. | |
6545 | * | |
6546 | * dcmd.opcode - MR_DCMD_DEV_GET_TARGET_PROP | |
6547 | * dcmd.mbox.b[0] - DCMD is to be fired for LD or system PD. | |
6548 | * 0 = system PD, 1 = LD. | |
6549 | * dcmd.mbox.s[1] - TargetID for LD/system PD. | |
6550 | * dcmd.sge IN - Pointer to return MR_TARGET_DEV_PROPERTIES. | |
6551 | * | |
6552 | * @instance: Adapter soft state | |
6553 | * @sdev: OS provided scsi device | |
6554 | * | |
6555 | * Returns 0 on success non-zero on failure. | |
6556 | */ | |
6557 | int | |
6558 | megasas_get_target_prop(struct megasas_instance *instance, | |
6559 | struct scsi_device *sdev) | |
6560 | { | |
6561 | int ret; | |
6562 | struct megasas_cmd *cmd; | |
6563 | struct megasas_dcmd_frame *dcmd; | |
6564 | u16 targetId = ((sdev->channel % 2) * MEGASAS_MAX_DEV_PER_CHANNEL) + | |
6565 | sdev->id; | |
6566 | ||
6567 | cmd = megasas_get_cmd(instance); | |
6568 | ||
6569 | if (!cmd) { | |
6570 | dev_err(&instance->pdev->dev, | |
6571 | "Failed to get cmd %s\n", __func__); | |
6572 | return -ENOMEM; | |
6573 | } | |
6574 | ||
6575 | dcmd = &cmd->frame->dcmd; | |
6576 | ||
6577 | memset(instance->tgt_prop, 0, sizeof(*instance->tgt_prop)); | |
6578 | memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); | |
6579 | dcmd->mbox.b[0] = MEGASAS_IS_LOGICAL(sdev); | |
6580 | ||
6581 | dcmd->mbox.s[1] = cpu_to_le16(targetId); | |
6582 | dcmd->cmd = MFI_CMD_DCMD; | |
6583 | dcmd->cmd_status = 0xFF; | |
6584 | dcmd->sge_count = 1; | |
6585 | dcmd->flags = MFI_FRAME_DIR_READ; | |
6586 | dcmd->timeout = 0; | |
6587 | dcmd->pad_0 = 0; | |
6588 | dcmd->data_xfer_len = | |
6589 | cpu_to_le32(sizeof(struct MR_TARGET_PROPERTIES)); | |
6590 | dcmd->opcode = cpu_to_le32(MR_DCMD_DRV_GET_TARGET_PROP); | |
6591 | ||
6592 | megasas_set_dma_settings(instance, dcmd, instance->tgt_prop_h, | |
6593 | sizeof(struct MR_TARGET_PROPERTIES)); | |
6594 | ||
6595 | if ((instance->adapter_type != MFI_SERIES) && | |
6596 | !instance->mask_interrupts) | |
6597 | ret = megasas_issue_blocked_cmd(instance, | |
6598 | cmd, MFI_IO_TIMEOUT_SECS); | |
6599 | else | |
6600 | ret = megasas_issue_polled(instance, cmd); | |
6601 | ||
6602 | switch (ret) { | |
6603 | case DCMD_TIMEOUT: | |
6604 | switch (dcmd_timeout_ocr_possible(instance)) { | |
6605 | case INITIATE_OCR: | |
6606 | cmd->flags |= DRV_DCMD_SKIP_REFIRE; | |
6607 | mutex_unlock(&instance->reset_mutex); | |
6608 | megasas_reset_fusion(instance->host, | |
6609 | MFI_IO_TIMEOUT_OCR); | |
6610 | mutex_lock(&instance->reset_mutex); | |
6611 | break; | |
6612 | case KILL_ADAPTER: | |
6613 | megaraid_sas_kill_hba(instance); | |
6614 | break; | |
6615 | case IGNORE_TIMEOUT: | |
6616 | dev_info(&instance->pdev->dev, | |
6617 | "Ignore DCMD timeout: %s %d\n", | |
6618 | __func__, __LINE__); | |
6619 | break; | |
6620 | } | |
6621 | break; | |
6622 | ||
6623 | default: | |
6624 | megasas_return_cmd(instance, cmd); | |
6625 | } | |
6626 | if (ret != DCMD_SUCCESS) | |
6627 | dev_err(&instance->pdev->dev, | |
6628 | "return from %s %d return value %d\n", | |
6629 | __func__, __LINE__, ret); | |
6630 | ||
6631 | return ret; | |
6632 | } | |
6633 | ||
6634 | /** | |
6635 | * megasas_start_aen - Subscribes to AEN during driver load time | |
6636 | * @instance: Adapter soft state | |
6637 | */ | |
6638 | static int megasas_start_aen(struct megasas_instance *instance) | |
6639 | { | |
6640 | struct megasas_evt_log_info eli; | |
6641 | union megasas_evt_class_locale class_locale; | |
6642 | ||
6643 | /* | |
6644 | * Get the latest sequence number from FW | |
6645 | */ | |
6646 | memset(&eli, 0, sizeof(eli)); | |
6647 | ||
6648 | if (megasas_get_seq_num(instance, &eli)) | |
6649 | return -1; | |
6650 | ||
6651 | /* | |
6652 | * Register AEN with FW for latest sequence number plus 1 | |
6653 | */ | |
6654 | class_locale.members.reserved = 0; | |
6655 | class_locale.members.locale = MR_EVT_LOCALE_ALL; | |
6656 | class_locale.members.class = MR_EVT_CLASS_DEBUG; | |
6657 | ||
6658 | return megasas_register_aen(instance, | |
6659 | le32_to_cpu(eli.newest_seq_num) + 1, | |
6660 | class_locale.word); | |
6661 | } | |
6662 | ||
6663 | /** | |
6664 | * megasas_io_attach - Attaches this driver to SCSI mid-layer | |
6665 | * @instance: Adapter soft state | |
6666 | */ | |
6667 | static int megasas_io_attach(struct megasas_instance *instance) | |
6668 | { | |
6669 | struct Scsi_Host *host = instance->host; | |
6670 | ||
6671 | /* | |
6672 | * Export parameters required by SCSI mid-layer | |
6673 | */ | |
6674 | host->unique_id = instance->unique_id; | |
6675 | host->can_queue = instance->max_scsi_cmds; | |
6676 | host->this_id = instance->init_id; | |
6677 | host->sg_tablesize = instance->max_num_sge; | |
6678 | ||
6679 | if (instance->fw_support_ieee) | |
6680 | instance->max_sectors_per_req = MEGASAS_MAX_SECTORS_IEEE; | |
6681 | ||
6682 | /* | |
6683 | * Check if the module parameter value for max_sectors can be used | |
6684 | */ | |
6685 | if (max_sectors && max_sectors < instance->max_sectors_per_req) | |
6686 | instance->max_sectors_per_req = max_sectors; | |
6687 | else { | |
6688 | if (max_sectors) { | |
6689 | if (((instance->pdev->device == | |
6690 | PCI_DEVICE_ID_LSI_SAS1078GEN2) || | |
6691 | (instance->pdev->device == | |
6692 | PCI_DEVICE_ID_LSI_SAS0079GEN2)) && | |
6693 | (max_sectors <= MEGASAS_MAX_SECTORS)) { | |
6694 | instance->max_sectors_per_req = max_sectors; | |
6695 | } else { | |
6696 | dev_info(&instance->pdev->dev, "max_sectors should be > 0" | |
6697 | "and <= %d (or < 1MB for GEN2 controller)\n", | |
6698 | instance->max_sectors_per_req); | |
6699 | } | |
6700 | } | |
6701 | } | |
6702 | ||
6703 | host->max_sectors = instance->max_sectors_per_req; | |
6704 | host->cmd_per_lun = MEGASAS_DEFAULT_CMD_PER_LUN; | |
6705 | host->max_channel = MEGASAS_MAX_CHANNELS - 1; | |
6706 | host->max_id = MEGASAS_MAX_DEV_PER_CHANNEL; | |
6707 | host->max_lun = MEGASAS_MAX_LUN; | |
6708 | host->max_cmd_len = 16; | |
6709 | ||
6710 | /* | |
6711 | * Notify the mid-layer about the new controller | |
6712 | */ | |
6713 | if (scsi_add_host(host, &instance->pdev->dev)) { | |
6714 | dev_err(&instance->pdev->dev, | |
6715 | "Failed to add host from %s %d\n", | |
6716 | __func__, __LINE__); | |
6717 | return -ENODEV; | |
6718 | } | |
6719 | ||
6720 | return 0; | |
6721 | } | |
6722 | ||
6723 | /** | |
6724 | * megasas_set_dma_mask - Set DMA mask for supported controllers | |
6725 | * | |
6726 | * @instance: Adapter soft state | |
6727 | * Description: | |
6728 | * | |
6729 | * For Ventura, driver/FW will operate in 63bit DMA addresses. | |
6730 | * | |
6731 | * For invader- | |
6732 | * By default, driver/FW will operate in 32bit DMA addresses | |
6733 | * for consistent DMA mapping but if 32 bit consistent | |
6734 | * DMA mask fails, driver will try with 63 bit consistent | |
6735 | * mask provided FW is true 63bit DMA capable | |
6736 | * | |
6737 | * For older controllers(Thunderbolt and MFI based adapters)- | |
6738 | * driver/FW will operate in 32 bit consistent DMA addresses. | |
6739 | */ | |
6740 | static int | |
6741 | megasas_set_dma_mask(struct megasas_instance *instance) | |
6742 | { | |
6743 | u64 consistent_mask; | |
6744 | struct pci_dev *pdev; | |
6745 | u32 scratch_pad_1; | |
6746 | ||
6747 | pdev = instance->pdev; | |
6748 | consistent_mask = (instance->adapter_type >= VENTURA_SERIES) ? | |
6749 | DMA_BIT_MASK(63) : DMA_BIT_MASK(32); | |
6750 | ||
6751 | if (IS_DMA64) { | |
6752 | if (dma_set_mask(&pdev->dev, DMA_BIT_MASK(63)) && | |
6753 | dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32))) | |
6754 | goto fail_set_dma_mask; | |
6755 | ||
6756 | if ((*pdev->dev.dma_mask == DMA_BIT_MASK(63)) && | |
6757 | (dma_set_coherent_mask(&pdev->dev, consistent_mask) && | |
6758 | dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)))) { | |
6759 | /* | |
6760 | * If 32 bit DMA mask fails, then try for 64 bit mask | |
6761 | * for FW capable of handling 64 bit DMA. | |
6762 | */ | |
6763 | scratch_pad_1 = megasas_readl | |
6764 | (instance, &instance->reg_set->outbound_scratch_pad_1); | |
6765 | ||
6766 | if (!(scratch_pad_1 & MR_CAN_HANDLE_64_BIT_DMA_OFFSET)) | |
6767 | goto fail_set_dma_mask; | |
6768 | else if (dma_set_mask_and_coherent(&pdev->dev, | |
6769 | DMA_BIT_MASK(63))) | |
6770 | goto fail_set_dma_mask; | |
6771 | } | |
6772 | } else if (dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32))) | |
6773 | goto fail_set_dma_mask; | |
6774 | ||
6775 | if (pdev->dev.coherent_dma_mask == DMA_BIT_MASK(32)) | |
6776 | instance->consistent_mask_64bit = false; | |
6777 | else | |
6778 | instance->consistent_mask_64bit = true; | |
6779 | ||
6780 | dev_info(&pdev->dev, "%s bit DMA mask and %s bit consistent mask\n", | |
6781 | ((*pdev->dev.dma_mask == DMA_BIT_MASK(63)) ? "63" : "32"), | |
6782 | (instance->consistent_mask_64bit ? "63" : "32")); | |
6783 | ||
6784 | return 0; | |
6785 | ||
6786 | fail_set_dma_mask: | |
6787 | dev_err(&pdev->dev, "Failed to set DMA mask\n"); | |
6788 | return -1; | |
6789 | ||
6790 | } | |
6791 | ||
6792 | /* | |
6793 | * megasas_set_adapter_type - Set adapter type. | |
6794 | * Supported controllers can be divided in | |
6795 | * different categories- | |
6796 | * enum MR_ADAPTER_TYPE { | |
6797 | * MFI_SERIES = 1, | |
6798 | * THUNDERBOLT_SERIES = 2, | |
6799 | * INVADER_SERIES = 3, | |
6800 | * VENTURA_SERIES = 4, | |
6801 | * AERO_SERIES = 5, | |
6802 | * }; | |
6803 | * @instance: Adapter soft state | |
6804 | * return: void | |
6805 | */ | |
6806 | static inline void megasas_set_adapter_type(struct megasas_instance *instance) | |
6807 | { | |
6808 | if ((instance->pdev->vendor == PCI_VENDOR_ID_DELL) && | |
6809 | (instance->pdev->device == PCI_DEVICE_ID_DELL_PERC5)) { | |
6810 | instance->adapter_type = MFI_SERIES; | |
6811 | } else { | |
6812 | switch (instance->pdev->device) { | |
6813 | case PCI_DEVICE_ID_LSI_AERO_10E1: | |
6814 | case PCI_DEVICE_ID_LSI_AERO_10E2: | |
6815 | case PCI_DEVICE_ID_LSI_AERO_10E5: | |
6816 | case PCI_DEVICE_ID_LSI_AERO_10E6: | |
6817 | instance->adapter_type = AERO_SERIES; | |
6818 | break; | |
6819 | case PCI_DEVICE_ID_LSI_VENTURA: | |
6820 | case PCI_DEVICE_ID_LSI_CRUSADER: | |
6821 | case PCI_DEVICE_ID_LSI_HARPOON: | |
6822 | case PCI_DEVICE_ID_LSI_TOMCAT: | |
6823 | case PCI_DEVICE_ID_LSI_VENTURA_4PORT: | |
6824 | case PCI_DEVICE_ID_LSI_CRUSADER_4PORT: | |
6825 | instance->adapter_type = VENTURA_SERIES; | |
6826 | break; | |
6827 | case PCI_DEVICE_ID_LSI_FUSION: | |
6828 | case PCI_DEVICE_ID_LSI_PLASMA: | |
6829 | instance->adapter_type = THUNDERBOLT_SERIES; | |
6830 | break; | |
6831 | case PCI_DEVICE_ID_LSI_INVADER: | |
6832 | case PCI_DEVICE_ID_LSI_INTRUDER: | |
6833 | case PCI_DEVICE_ID_LSI_INTRUDER_24: | |
6834 | case PCI_DEVICE_ID_LSI_CUTLASS_52: | |
6835 | case PCI_DEVICE_ID_LSI_CUTLASS_53: | |
6836 | case PCI_DEVICE_ID_LSI_FURY: | |
6837 | instance->adapter_type = INVADER_SERIES; | |
6838 | break; | |
6839 | default: /* For all other supported controllers */ | |
6840 | instance->adapter_type = MFI_SERIES; | |
6841 | break; | |
6842 | } | |
6843 | } | |
6844 | } | |
6845 | ||
6846 | static inline int megasas_alloc_mfi_ctrl_mem(struct megasas_instance *instance) | |
6847 | { | |
6848 | instance->producer = dma_alloc_coherent(&instance->pdev->dev, | |
6849 | sizeof(u32), &instance->producer_h, GFP_KERNEL); | |
6850 | instance->consumer = dma_alloc_coherent(&instance->pdev->dev, | |
6851 | sizeof(u32), &instance->consumer_h, GFP_KERNEL); | |
6852 | ||
6853 | if (!instance->producer || !instance->consumer) { | |
6854 | dev_err(&instance->pdev->dev, | |
6855 | "Failed to allocate memory for producer, consumer\n"); | |
6856 | return -1; | |
6857 | } | |
6858 | ||
6859 | *instance->producer = 0; | |
6860 | *instance->consumer = 0; | |
6861 | return 0; | |
6862 | } | |
6863 | ||
6864 | /** | |
6865 | * megasas_alloc_ctrl_mem - Allocate per controller memory for core data | |
6866 | * structures which are not common across MFI | |
6867 | * adapters and fusion adapters. | |
6868 | * For MFI based adapters, allocate producer and | |
6869 | * consumer buffers. For fusion adapters, allocate | |
6870 | * memory for fusion context. | |
6871 | * @instance: Adapter soft state | |
6872 | * return: 0 for SUCCESS | |
6873 | */ | |
6874 | static int megasas_alloc_ctrl_mem(struct megasas_instance *instance) | |
6875 | { | |
6876 | instance->reply_map = kcalloc(nr_cpu_ids, sizeof(unsigned int), | |
6877 | GFP_KERNEL); | |
6878 | if (!instance->reply_map) | |
6879 | return -ENOMEM; | |
6880 | ||
6881 | switch (instance->adapter_type) { | |
6882 | case MFI_SERIES: | |
6883 | if (megasas_alloc_mfi_ctrl_mem(instance)) | |
6884 | goto fail; | |
6885 | break; | |
6886 | case AERO_SERIES: | |
6887 | case VENTURA_SERIES: | |
6888 | case THUNDERBOLT_SERIES: | |
6889 | case INVADER_SERIES: | |
6890 | if (megasas_alloc_fusion_context(instance)) | |
6891 | goto fail; | |
6892 | break; | |
6893 | } | |
6894 | ||
6895 | return 0; | |
6896 | fail: | |
6897 | kfree(instance->reply_map); | |
6898 | instance->reply_map = NULL; | |
6899 | return -ENOMEM; | |
6900 | } | |
6901 | ||
6902 | /* | |
6903 | * megasas_free_ctrl_mem - Free fusion context for fusion adapters and | |
6904 | * producer, consumer buffers for MFI adapters | |
6905 | * | |
6906 | * @instance - Adapter soft instance | |
6907 | * | |
6908 | */ | |
6909 | static inline void megasas_free_ctrl_mem(struct megasas_instance *instance) | |
6910 | { | |
6911 | kfree(instance->reply_map); | |
6912 | if (instance->adapter_type == MFI_SERIES) { | |
6913 | if (instance->producer) | |
6914 | dma_free_coherent(&instance->pdev->dev, sizeof(u32), | |
6915 | instance->producer, | |
6916 | instance->producer_h); | |
6917 | if (instance->consumer) | |
6918 | dma_free_coherent(&instance->pdev->dev, sizeof(u32), | |
6919 | instance->consumer, | |
6920 | instance->consumer_h); | |
6921 | } else { | |
6922 | megasas_free_fusion_context(instance); | |
6923 | } | |
6924 | } | |
6925 | ||
6926 | /** | |
6927 | * megasas_alloc_ctrl_dma_buffers - Allocate consistent DMA buffers during | |
6928 | * driver load time | |
6929 | * | |
6930 | * @instance- Adapter soft instance | |
6931 | * @return- O for SUCCESS | |
6932 | */ | |
6933 | static inline | |
6934 | int megasas_alloc_ctrl_dma_buffers(struct megasas_instance *instance) | |
6935 | { | |
6936 | struct pci_dev *pdev = instance->pdev; | |
6937 | struct fusion_context *fusion = instance->ctrl_context; | |
6938 | ||
6939 | instance->evt_detail = dma_alloc_coherent(&pdev->dev, | |
6940 | sizeof(struct megasas_evt_detail), | |
6941 | &instance->evt_detail_h, GFP_KERNEL); | |
6942 | ||
6943 | if (!instance->evt_detail) { | |
6944 | dev_err(&instance->pdev->dev, | |
6945 | "Failed to allocate event detail buffer\n"); | |
6946 | return -ENOMEM; | |
6947 | } | |
6948 | ||
6949 | if (fusion) { | |
6950 | fusion->ioc_init_request = | |
6951 | dma_alloc_coherent(&pdev->dev, | |
6952 | sizeof(struct MPI2_IOC_INIT_REQUEST), | |
6953 | &fusion->ioc_init_request_phys, | |
6954 | GFP_KERNEL); | |
6955 | ||
6956 | if (!fusion->ioc_init_request) { | |
6957 | dev_err(&pdev->dev, | |
6958 | "Failed to allocate PD list buffer\n"); | |
6959 | return -ENOMEM; | |
6960 | } | |
6961 | ||
6962 | instance->snapdump_prop = dma_alloc_coherent(&pdev->dev, | |
6963 | sizeof(struct MR_SNAPDUMP_PROPERTIES), | |
6964 | &instance->snapdump_prop_h, GFP_KERNEL); | |
6965 | ||
6966 | if (!instance->snapdump_prop) | |
6967 | dev_err(&pdev->dev, | |
6968 | "Failed to allocate snapdump properties buffer\n"); | |
6969 | ||
6970 | instance->host_device_list_buf = dma_alloc_coherent(&pdev->dev, | |
6971 | HOST_DEVICE_LIST_SZ, | |
6972 | &instance->host_device_list_buf_h, | |
6973 | GFP_KERNEL); | |
6974 | ||
6975 | if (!instance->host_device_list_buf) { | |
6976 | dev_err(&pdev->dev, | |
6977 | "Failed to allocate targetid list buffer\n"); | |
6978 | return -ENOMEM; | |
6979 | } | |
6980 | ||
6981 | } | |
6982 | ||
6983 | instance->pd_list_buf = | |
6984 | dma_alloc_coherent(&pdev->dev, | |
6985 | MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST), | |
6986 | &instance->pd_list_buf_h, GFP_KERNEL); | |
6987 | ||
6988 | if (!instance->pd_list_buf) { | |
6989 | dev_err(&pdev->dev, "Failed to allocate PD list buffer\n"); | |
6990 | return -ENOMEM; | |
6991 | } | |
6992 | ||
6993 | instance->ctrl_info_buf = | |
6994 | dma_alloc_coherent(&pdev->dev, | |
6995 | sizeof(struct megasas_ctrl_info), | |
6996 | &instance->ctrl_info_buf_h, GFP_KERNEL); | |
6997 | ||
6998 | if (!instance->ctrl_info_buf) { | |
6999 | dev_err(&pdev->dev, | |
7000 | "Failed to allocate controller info buffer\n"); | |
7001 | return -ENOMEM; | |
7002 | } | |
7003 | ||
7004 | instance->ld_list_buf = | |
7005 | dma_alloc_coherent(&pdev->dev, | |
7006 | sizeof(struct MR_LD_LIST), | |
7007 | &instance->ld_list_buf_h, GFP_KERNEL); | |
7008 | ||
7009 | if (!instance->ld_list_buf) { | |
7010 | dev_err(&pdev->dev, "Failed to allocate LD list buffer\n"); | |
7011 | return -ENOMEM; | |
7012 | } | |
7013 | ||
7014 | instance->ld_targetid_list_buf = | |
7015 | dma_alloc_coherent(&pdev->dev, | |
7016 | sizeof(struct MR_LD_TARGETID_LIST), | |
7017 | &instance->ld_targetid_list_buf_h, GFP_KERNEL); | |
7018 | ||
7019 | if (!instance->ld_targetid_list_buf) { | |
7020 | dev_err(&pdev->dev, | |
7021 | "Failed to allocate LD targetid list buffer\n"); | |
7022 | return -ENOMEM; | |
7023 | } | |
7024 | ||
7025 | if (!reset_devices) { | |
7026 | instance->system_info_buf = | |
7027 | dma_alloc_coherent(&pdev->dev, | |
7028 | sizeof(struct MR_DRV_SYSTEM_INFO), | |
7029 | &instance->system_info_h, GFP_KERNEL); | |
7030 | instance->pd_info = | |
7031 | dma_alloc_coherent(&pdev->dev, | |
7032 | sizeof(struct MR_PD_INFO), | |
7033 | &instance->pd_info_h, GFP_KERNEL); | |
7034 | instance->tgt_prop = | |
7035 | dma_alloc_coherent(&pdev->dev, | |
7036 | sizeof(struct MR_TARGET_PROPERTIES), | |
7037 | &instance->tgt_prop_h, GFP_KERNEL); | |
7038 | instance->crash_dump_buf = | |
7039 | dma_alloc_coherent(&pdev->dev, CRASH_DMA_BUF_SIZE, | |
7040 | &instance->crash_dump_h, GFP_KERNEL); | |
7041 | ||
7042 | if (!instance->system_info_buf) | |
7043 | dev_err(&instance->pdev->dev, | |
7044 | "Failed to allocate system info buffer\n"); | |
7045 | ||
7046 | if (!instance->pd_info) | |
7047 | dev_err(&instance->pdev->dev, | |
7048 | "Failed to allocate pd_info buffer\n"); | |
7049 | ||
7050 | if (!instance->tgt_prop) | |
7051 | dev_err(&instance->pdev->dev, | |
7052 | "Failed to allocate tgt_prop buffer\n"); | |
7053 | ||
7054 | if (!instance->crash_dump_buf) | |
7055 | dev_err(&instance->pdev->dev, | |
7056 | "Failed to allocate crash dump buffer\n"); | |
7057 | } | |
7058 | ||
7059 | return 0; | |
7060 | } | |
7061 | ||
7062 | /* | |
7063 | * megasas_free_ctrl_dma_buffers - Free consistent DMA buffers allocated | |
7064 | * during driver load time | |
7065 | * | |
7066 | * @instance- Adapter soft instance | |
7067 | * | |
7068 | */ | |
7069 | static inline | |
7070 | void megasas_free_ctrl_dma_buffers(struct megasas_instance *instance) | |
7071 | { | |
7072 | struct pci_dev *pdev = instance->pdev; | |
7073 | struct fusion_context *fusion = instance->ctrl_context; | |
7074 | ||
7075 | if (instance->evt_detail) | |
7076 | dma_free_coherent(&pdev->dev, sizeof(struct megasas_evt_detail), | |
7077 | instance->evt_detail, | |
7078 | instance->evt_detail_h); | |
7079 | ||
7080 | if (fusion && fusion->ioc_init_request) | |
7081 | dma_free_coherent(&pdev->dev, | |
7082 | sizeof(struct MPI2_IOC_INIT_REQUEST), | |
7083 | fusion->ioc_init_request, | |
7084 | fusion->ioc_init_request_phys); | |
7085 | ||
7086 | if (instance->pd_list_buf) | |
7087 | dma_free_coherent(&pdev->dev, | |
7088 | MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST), | |
7089 | instance->pd_list_buf, | |
7090 | instance->pd_list_buf_h); | |
7091 | ||
7092 | if (instance->ld_list_buf) | |
7093 | dma_free_coherent(&pdev->dev, sizeof(struct MR_LD_LIST), | |
7094 | instance->ld_list_buf, | |
7095 | instance->ld_list_buf_h); | |
7096 | ||
7097 | if (instance->ld_targetid_list_buf) | |
7098 | dma_free_coherent(&pdev->dev, sizeof(struct MR_LD_TARGETID_LIST), | |
7099 | instance->ld_targetid_list_buf, | |
7100 | instance->ld_targetid_list_buf_h); | |
7101 | ||
7102 | if (instance->ctrl_info_buf) | |
7103 | dma_free_coherent(&pdev->dev, sizeof(struct megasas_ctrl_info), | |
7104 | instance->ctrl_info_buf, | |
7105 | instance->ctrl_info_buf_h); | |
7106 | ||
7107 | if (instance->system_info_buf) | |
7108 | dma_free_coherent(&pdev->dev, sizeof(struct MR_DRV_SYSTEM_INFO), | |
7109 | instance->system_info_buf, | |
7110 | instance->system_info_h); | |
7111 | ||
7112 | if (instance->pd_info) | |
7113 | dma_free_coherent(&pdev->dev, sizeof(struct MR_PD_INFO), | |
7114 | instance->pd_info, instance->pd_info_h); | |
7115 | ||
7116 | if (instance->tgt_prop) | |
7117 | dma_free_coherent(&pdev->dev, sizeof(struct MR_TARGET_PROPERTIES), | |
7118 | instance->tgt_prop, instance->tgt_prop_h); | |
7119 | ||
7120 | if (instance->crash_dump_buf) | |
7121 | dma_free_coherent(&pdev->dev, CRASH_DMA_BUF_SIZE, | |
7122 | instance->crash_dump_buf, | |
7123 | instance->crash_dump_h); | |
7124 | ||
7125 | if (instance->snapdump_prop) | |
7126 | dma_free_coherent(&pdev->dev, | |
7127 | sizeof(struct MR_SNAPDUMP_PROPERTIES), | |
7128 | instance->snapdump_prop, | |
7129 | instance->snapdump_prop_h); | |
7130 | ||
7131 | if (instance->host_device_list_buf) | |
7132 | dma_free_coherent(&pdev->dev, | |
7133 | HOST_DEVICE_LIST_SZ, | |
7134 | instance->host_device_list_buf, | |
7135 | instance->host_device_list_buf_h); | |
7136 | ||
7137 | } | |
7138 | ||
7139 | /* | |
7140 | * megasas_init_ctrl_params - Initialize controller's instance | |
7141 | * parameters before FW init | |
7142 | * @instance - Adapter soft instance | |
7143 | * @return - void | |
7144 | */ | |
7145 | static inline void megasas_init_ctrl_params(struct megasas_instance *instance) | |
7146 | { | |
7147 | instance->fw_crash_state = UNAVAILABLE; | |
7148 | ||
7149 | megasas_poll_wait_aen = 0; | |
7150 | instance->issuepend_done = 1; | |
7151 | atomic_set(&instance->adprecovery, MEGASAS_HBA_OPERATIONAL); | |
7152 | ||
7153 | /* | |
7154 | * Initialize locks and queues | |
7155 | */ | |
7156 | INIT_LIST_HEAD(&instance->cmd_pool); | |
7157 | INIT_LIST_HEAD(&instance->internal_reset_pending_q); | |
7158 | ||
7159 | atomic_set(&instance->fw_outstanding, 0); | |
7160 | atomic64_set(&instance->total_io_count, 0); | |
7161 | ||
7162 | init_waitqueue_head(&instance->int_cmd_wait_q); | |
7163 | init_waitqueue_head(&instance->abort_cmd_wait_q); | |
7164 | ||
7165 | spin_lock_init(&instance->crashdump_lock); | |
7166 | spin_lock_init(&instance->mfi_pool_lock); | |
7167 | spin_lock_init(&instance->hba_lock); | |
7168 | spin_lock_init(&instance->stream_lock); | |
7169 | spin_lock_init(&instance->completion_lock); | |
7170 | ||
7171 | mutex_init(&instance->reset_mutex); | |
7172 | ||
7173 | if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) || | |
7174 | (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY)) | |
7175 | instance->flag_ieee = 1; | |
7176 | ||
7177 | megasas_dbg_lvl = 0; | |
7178 | instance->flag = 0; | |
7179 | instance->unload = 1; | |
7180 | instance->last_time = 0; | |
7181 | instance->disableOnlineCtrlReset = 1; | |
7182 | instance->UnevenSpanSupport = 0; | |
7183 | instance->smp_affinity_enable = smp_affinity_enable ? true : false; | |
7184 | instance->msix_load_balance = false; | |
7185 | ||
7186 | if (instance->adapter_type != MFI_SERIES) | |
7187 | INIT_WORK(&instance->work_init, megasas_fusion_ocr_wq); | |
7188 | else | |
7189 | INIT_WORK(&instance->work_init, process_fw_state_change_wq); | |
7190 | } | |
7191 | ||
7192 | /** | |
7193 | * megasas_probe_one - PCI hotplug entry point | |
7194 | * @pdev: PCI device structure | |
7195 | * @id: PCI ids of supported hotplugged adapter | |
7196 | */ | |
7197 | static int megasas_probe_one(struct pci_dev *pdev, | |
7198 | const struct pci_device_id *id) | |
7199 | { | |
7200 | int rval, pos; | |
7201 | struct Scsi_Host *host; | |
7202 | struct megasas_instance *instance; | |
7203 | u16 control = 0; | |
7204 | ||
7205 | switch (pdev->device) { | |
7206 | case PCI_DEVICE_ID_LSI_AERO_10E0: | |
7207 | case PCI_DEVICE_ID_LSI_AERO_10E3: | |
7208 | case PCI_DEVICE_ID_LSI_AERO_10E4: | |
7209 | case PCI_DEVICE_ID_LSI_AERO_10E7: | |
7210 | dev_err(&pdev->dev, "Adapter is in non secure mode\n"); | |
7211 | return 1; | |
7212 | case PCI_DEVICE_ID_LSI_AERO_10E1: | |
7213 | case PCI_DEVICE_ID_LSI_AERO_10E5: | |
7214 | dev_info(&pdev->dev, "Adapter is in configurable secure mode\n"); | |
7215 | break; | |
7216 | } | |
7217 | ||
7218 | /* Reset MSI-X in the kdump kernel */ | |
7219 | if (reset_devices) { | |
7220 | pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX); | |
7221 | if (pos) { | |
7222 | pci_read_config_word(pdev, pos + PCI_MSIX_FLAGS, | |
7223 | &control); | |
7224 | if (control & PCI_MSIX_FLAGS_ENABLE) { | |
7225 | dev_info(&pdev->dev, "resetting MSI-X\n"); | |
7226 | pci_write_config_word(pdev, | |
7227 | pos + PCI_MSIX_FLAGS, | |
7228 | control & | |
7229 | ~PCI_MSIX_FLAGS_ENABLE); | |
7230 | } | |
7231 | } | |
7232 | } | |
7233 | ||
7234 | /* | |
7235 | * PCI prepping: enable device set bus mastering and dma mask | |
7236 | */ | |
7237 | rval = pci_enable_device_mem(pdev); | |
7238 | ||
7239 | if (rval) { | |
7240 | return rval; | |
7241 | } | |
7242 | ||
7243 | pci_set_master(pdev); | |
7244 | ||
7245 | host = scsi_host_alloc(&megasas_template, | |
7246 | sizeof(struct megasas_instance)); | |
7247 | ||
7248 | if (!host) { | |
7249 | dev_printk(KERN_DEBUG, &pdev->dev, "scsi_host_alloc failed\n"); | |
7250 | goto fail_alloc_instance; | |
7251 | } | |
7252 | ||
7253 | instance = (struct megasas_instance *)host->hostdata; | |
7254 | memset(instance, 0, sizeof(*instance)); | |
7255 | atomic_set(&instance->fw_reset_no_pci_access, 0); | |
7256 | ||
7257 | /* | |
7258 | * Initialize PCI related and misc parameters | |
7259 | */ | |
7260 | instance->pdev = pdev; | |
7261 | instance->host = host; | |
7262 | instance->unique_id = pdev->bus->number << 8 | pdev->devfn; | |
7263 | instance->init_id = MEGASAS_DEFAULT_INIT_ID; | |
7264 | ||
7265 | megasas_set_adapter_type(instance); | |
7266 | ||
7267 | /* | |
7268 | * Initialize MFI Firmware | |
7269 | */ | |
7270 | if (megasas_init_fw(instance)) | |
7271 | goto fail_init_mfi; | |
7272 | ||
7273 | if (instance->requestorId) { | |
7274 | if (instance->PlasmaFW111) { | |
7275 | instance->vf_affiliation_111 = | |
7276 | dma_alloc_coherent(&pdev->dev, | |
7277 | sizeof(struct MR_LD_VF_AFFILIATION_111), | |
7278 | &instance->vf_affiliation_111_h, | |
7279 | GFP_KERNEL); | |
7280 | if (!instance->vf_affiliation_111) | |
7281 | dev_warn(&pdev->dev, "Can't allocate " | |
7282 | "memory for VF affiliation buffer\n"); | |
7283 | } else { | |
7284 | instance->vf_affiliation = | |
7285 | dma_alloc_coherent(&pdev->dev, | |
7286 | (MAX_LOGICAL_DRIVES + 1) * | |
7287 | sizeof(struct MR_LD_VF_AFFILIATION), | |
7288 | &instance->vf_affiliation_h, | |
7289 | GFP_KERNEL); | |
7290 | if (!instance->vf_affiliation) | |
7291 | dev_warn(&pdev->dev, "Can't allocate " | |
7292 | "memory for VF affiliation buffer\n"); | |
7293 | } | |
7294 | } | |
7295 | ||
7296 | /* | |
7297 | * Store instance in PCI softstate | |
7298 | */ | |
7299 | pci_set_drvdata(pdev, instance); | |
7300 | ||
7301 | /* | |
7302 | * Add this controller to megasas_mgmt_info structure so that it | |
7303 | * can be exported to management applications | |
7304 | */ | |
7305 | megasas_mgmt_info.count++; | |
7306 | megasas_mgmt_info.instance[megasas_mgmt_info.max_index] = instance; | |
7307 | megasas_mgmt_info.max_index++; | |
7308 | ||
7309 | /* | |
7310 | * Register with SCSI mid-layer | |
7311 | */ | |
7312 | if (megasas_io_attach(instance)) | |
7313 | goto fail_io_attach; | |
7314 | ||
7315 | instance->unload = 0; | |
7316 | /* | |
7317 | * Trigger SCSI to scan our drives | |
7318 | */ | |
7319 | if (!instance->enable_fw_dev_list || | |
7320 | (instance->host_device_list_buf->count > 0)) | |
7321 | scsi_scan_host(host); | |
7322 | ||
7323 | /* | |
7324 | * Initiate AEN (Asynchronous Event Notification) | |
7325 | */ | |
7326 | if (megasas_start_aen(instance)) { | |
7327 | dev_printk(KERN_DEBUG, &pdev->dev, "start aen failed\n"); | |
7328 | goto fail_start_aen; | |
7329 | } | |
7330 | ||
7331 | megasas_setup_debugfs(instance); | |
7332 | ||
7333 | /* Get current SR-IOV LD/VF affiliation */ | |
7334 | if (instance->requestorId) | |
7335 | megasas_get_ld_vf_affiliation(instance, 1); | |
7336 | ||
7337 | return 0; | |
7338 | ||
7339 | fail_start_aen: | |
7340 | fail_io_attach: | |
7341 | megasas_mgmt_info.count--; | |
7342 | megasas_mgmt_info.max_index--; | |
7343 | megasas_mgmt_info.instance[megasas_mgmt_info.max_index] = NULL; | |
7344 | ||
7345 | instance->instancet->disable_intr(instance); | |
7346 | megasas_destroy_irqs(instance); | |
7347 | ||
7348 | if (instance->adapter_type != MFI_SERIES) | |
7349 | megasas_release_fusion(instance); | |
7350 | else | |
7351 | megasas_release_mfi(instance); | |
7352 | if (instance->msix_vectors) | |
7353 | pci_free_irq_vectors(instance->pdev); | |
7354 | fail_init_mfi: | |
7355 | scsi_host_put(host); | |
7356 | fail_alloc_instance: | |
7357 | pci_disable_device(pdev); | |
7358 | ||
7359 | return -ENODEV; | |
7360 | } | |
7361 | ||
7362 | /** | |
7363 | * megasas_flush_cache - Requests FW to flush all its caches | |
7364 | * @instance: Adapter soft state | |
7365 | */ | |
7366 | static void megasas_flush_cache(struct megasas_instance *instance) | |
7367 | { | |
7368 | struct megasas_cmd *cmd; | |
7369 | struct megasas_dcmd_frame *dcmd; | |
7370 | ||
7371 | if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) | |
7372 | return; | |
7373 | ||
7374 | cmd = megasas_get_cmd(instance); | |
7375 | ||
7376 | if (!cmd) | |
7377 | return; | |
7378 | ||
7379 | dcmd = &cmd->frame->dcmd; | |
7380 | ||
7381 | memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); | |
7382 | ||
7383 | dcmd->cmd = MFI_CMD_DCMD; | |
7384 | dcmd->cmd_status = 0x0; | |
7385 | dcmd->sge_count = 0; | |
7386 | dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_NONE); | |
7387 | dcmd->timeout = 0; | |
7388 | dcmd->pad_0 = 0; | |
7389 | dcmd->data_xfer_len = 0; | |
7390 | dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_CACHE_FLUSH); | |
7391 | dcmd->mbox.b[0] = MR_FLUSH_CTRL_CACHE | MR_FLUSH_DISK_CACHE; | |
7392 | ||
7393 | if (megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS) | |
7394 | != DCMD_SUCCESS) { | |
7395 | dev_err(&instance->pdev->dev, | |
7396 | "return from %s %d\n", __func__, __LINE__); | |
7397 | return; | |
7398 | } | |
7399 | ||
7400 | megasas_return_cmd(instance, cmd); | |
7401 | } | |
7402 | ||
7403 | /** | |
7404 | * megasas_shutdown_controller - Instructs FW to shutdown the controller | |
7405 | * @instance: Adapter soft state | |
7406 | * @opcode: Shutdown/Hibernate | |
7407 | */ | |
7408 | static void megasas_shutdown_controller(struct megasas_instance *instance, | |
7409 | u32 opcode) | |
7410 | { | |
7411 | struct megasas_cmd *cmd; | |
7412 | struct megasas_dcmd_frame *dcmd; | |
7413 | ||
7414 | if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) | |
7415 | return; | |
7416 | ||
7417 | cmd = megasas_get_cmd(instance); | |
7418 | ||
7419 | if (!cmd) | |
7420 | return; | |
7421 | ||
7422 | if (instance->aen_cmd) | |
7423 | megasas_issue_blocked_abort_cmd(instance, | |
7424 | instance->aen_cmd, MFI_IO_TIMEOUT_SECS); | |
7425 | if (instance->map_update_cmd) | |
7426 | megasas_issue_blocked_abort_cmd(instance, | |
7427 | instance->map_update_cmd, MFI_IO_TIMEOUT_SECS); | |
7428 | if (instance->jbod_seq_cmd) | |
7429 | megasas_issue_blocked_abort_cmd(instance, | |
7430 | instance->jbod_seq_cmd, MFI_IO_TIMEOUT_SECS); | |
7431 | ||
7432 | dcmd = &cmd->frame->dcmd; | |
7433 | ||
7434 | memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); | |
7435 | ||
7436 | dcmd->cmd = MFI_CMD_DCMD; | |
7437 | dcmd->cmd_status = 0x0; | |
7438 | dcmd->sge_count = 0; | |
7439 | dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_NONE); | |
7440 | dcmd->timeout = 0; | |
7441 | dcmd->pad_0 = 0; | |
7442 | dcmd->data_xfer_len = 0; | |
7443 | dcmd->opcode = cpu_to_le32(opcode); | |
7444 | ||
7445 | if (megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS) | |
7446 | != DCMD_SUCCESS) { | |
7447 | dev_err(&instance->pdev->dev, | |
7448 | "return from %s %d\n", __func__, __LINE__); | |
7449 | return; | |
7450 | } | |
7451 | ||
7452 | megasas_return_cmd(instance, cmd); | |
7453 | } | |
7454 | ||
7455 | #ifdef CONFIG_PM | |
7456 | /** | |
7457 | * megasas_suspend - driver suspend entry point | |
7458 | * @pdev: PCI device structure | |
7459 | * @state: PCI power state to suspend routine | |
7460 | */ | |
7461 | static int | |
7462 | megasas_suspend(struct pci_dev *pdev, pm_message_t state) | |
7463 | { | |
7464 | struct megasas_instance *instance; | |
7465 | ||
7466 | instance = pci_get_drvdata(pdev); | |
7467 | ||
7468 | if (!instance) | |
7469 | return 0; | |
7470 | ||
7471 | instance->unload = 1; | |
7472 | ||
7473 | dev_info(&pdev->dev, "%s is called\n", __func__); | |
7474 | ||
7475 | /* Shutdown SR-IOV heartbeat timer */ | |
7476 | if (instance->requestorId && !instance->skip_heartbeat_timer_del) | |
7477 | del_timer_sync(&instance->sriov_heartbeat_timer); | |
7478 | ||
7479 | /* Stop the FW fault detection watchdog */ | |
7480 | if (instance->adapter_type != MFI_SERIES) | |
7481 | megasas_fusion_stop_watchdog(instance); | |
7482 | ||
7483 | megasas_flush_cache(instance); | |
7484 | megasas_shutdown_controller(instance, MR_DCMD_HIBERNATE_SHUTDOWN); | |
7485 | ||
7486 | /* cancel the delayed work if this work still in queue */ | |
7487 | if (instance->ev != NULL) { | |
7488 | struct megasas_aen_event *ev = instance->ev; | |
7489 | cancel_delayed_work_sync(&ev->hotplug_work); | |
7490 | instance->ev = NULL; | |
7491 | } | |
7492 | ||
7493 | tasklet_kill(&instance->isr_tasklet); | |
7494 | ||
7495 | pci_set_drvdata(instance->pdev, instance); | |
7496 | instance->instancet->disable_intr(instance); | |
7497 | ||
7498 | megasas_destroy_irqs(instance); | |
7499 | ||
7500 | if (instance->msix_vectors) | |
7501 | pci_free_irq_vectors(instance->pdev); | |
7502 | ||
7503 | pci_save_state(pdev); | |
7504 | pci_disable_device(pdev); | |
7505 | ||
7506 | pci_set_power_state(pdev, pci_choose_state(pdev, state)); | |
7507 | ||
7508 | return 0; | |
7509 | } | |
7510 | ||
7511 | /** | |
7512 | * megasas_resume- driver resume entry point | |
7513 | * @pdev: PCI device structure | |
7514 | */ | |
7515 | static int | |
7516 | megasas_resume(struct pci_dev *pdev) | |
7517 | { | |
7518 | int rval; | |
7519 | struct Scsi_Host *host; | |
7520 | struct megasas_instance *instance; | |
7521 | int irq_flags = PCI_IRQ_LEGACY; | |
7522 | ||
7523 | instance = pci_get_drvdata(pdev); | |
7524 | ||
7525 | if (!instance) | |
7526 | return 0; | |
7527 | ||
7528 | host = instance->host; | |
7529 | pci_set_power_state(pdev, PCI_D0); | |
7530 | pci_enable_wake(pdev, PCI_D0, 0); | |
7531 | pci_restore_state(pdev); | |
7532 | ||
7533 | dev_info(&pdev->dev, "%s is called\n", __func__); | |
7534 | /* | |
7535 | * PCI prepping: enable device set bus mastering and dma mask | |
7536 | */ | |
7537 | rval = pci_enable_device_mem(pdev); | |
7538 | ||
7539 | if (rval) { | |
7540 | dev_err(&pdev->dev, "Enable device failed\n"); | |
7541 | return rval; | |
7542 | } | |
7543 | ||
7544 | pci_set_master(pdev); | |
7545 | ||
7546 | /* | |
7547 | * We expect the FW state to be READY | |
7548 | */ | |
7549 | if (megasas_transition_to_ready(instance, 0)) | |
7550 | goto fail_ready_state; | |
7551 | ||
7552 | if (megasas_set_dma_mask(instance)) | |
7553 | goto fail_set_dma_mask; | |
7554 | ||
7555 | /* | |
7556 | * Initialize MFI Firmware | |
7557 | */ | |
7558 | ||
7559 | atomic_set(&instance->fw_outstanding, 0); | |
7560 | atomic_set(&instance->ldio_outstanding, 0); | |
7561 | ||
7562 | /* Now re-enable MSI-X */ | |
7563 | if (instance->msix_vectors) { | |
7564 | irq_flags = PCI_IRQ_MSIX; | |
7565 | if (instance->smp_affinity_enable) | |
7566 | irq_flags |= PCI_IRQ_AFFINITY; | |
7567 | } | |
7568 | rval = pci_alloc_irq_vectors(instance->pdev, 1, | |
7569 | instance->msix_vectors ? | |
7570 | instance->msix_vectors : 1, irq_flags); | |
7571 | if (rval < 0) | |
7572 | goto fail_reenable_msix; | |
7573 | ||
7574 | megasas_setup_reply_map(instance); | |
7575 | ||
7576 | if (instance->adapter_type != MFI_SERIES) { | |
7577 | megasas_reset_reply_desc(instance); | |
7578 | if (megasas_ioc_init_fusion(instance)) { | |
7579 | megasas_free_cmds(instance); | |
7580 | megasas_free_cmds_fusion(instance); | |
7581 | goto fail_init_mfi; | |
7582 | } | |
7583 | if (!megasas_get_map_info(instance)) | |
7584 | megasas_sync_map_info(instance); | |
7585 | } else { | |
7586 | *instance->producer = 0; | |
7587 | *instance->consumer = 0; | |
7588 | if (megasas_issue_init_mfi(instance)) | |
7589 | goto fail_init_mfi; | |
7590 | } | |
7591 | ||
7592 | if (megasas_get_ctrl_info(instance) != DCMD_SUCCESS) | |
7593 | goto fail_init_mfi; | |
7594 | ||
7595 | tasklet_init(&instance->isr_tasklet, instance->instancet->tasklet, | |
7596 | (unsigned long)instance); | |
7597 | ||
7598 | if (instance->msix_vectors ? | |
7599 | megasas_setup_irqs_msix(instance, 0) : | |
7600 | megasas_setup_irqs_ioapic(instance)) | |
7601 | goto fail_init_mfi; | |
7602 | ||
7603 | if (instance->adapter_type != MFI_SERIES) | |
7604 | megasas_setup_irq_poll(instance); | |
7605 | ||
7606 | /* Re-launch SR-IOV heartbeat timer */ | |
7607 | if (instance->requestorId) { | |
7608 | if (!megasas_sriov_start_heartbeat(instance, 0)) | |
7609 | megasas_start_timer(instance); | |
7610 | else { | |
7611 | instance->skip_heartbeat_timer_del = 1; | |
7612 | goto fail_init_mfi; | |
7613 | } | |
7614 | } | |
7615 | ||
7616 | instance->instancet->enable_intr(instance); | |
7617 | megasas_setup_jbod_map(instance); | |
7618 | instance->unload = 0; | |
7619 | ||
7620 | /* | |
7621 | * Initiate AEN (Asynchronous Event Notification) | |
7622 | */ | |
7623 | if (megasas_start_aen(instance)) | |
7624 | dev_err(&instance->pdev->dev, "Start AEN failed\n"); | |
7625 | ||
7626 | /* Re-launch FW fault watchdog */ | |
7627 | if (instance->adapter_type != MFI_SERIES) | |
7628 | if (megasas_fusion_start_watchdog(instance) != SUCCESS) | |
7629 | goto fail_start_watchdog; | |
7630 | ||
7631 | return 0; | |
7632 | ||
7633 | fail_start_watchdog: | |
7634 | if (instance->requestorId && !instance->skip_heartbeat_timer_del) | |
7635 | del_timer_sync(&instance->sriov_heartbeat_timer); | |
7636 | fail_init_mfi: | |
7637 | megasas_free_ctrl_dma_buffers(instance); | |
7638 | megasas_free_ctrl_mem(instance); | |
7639 | scsi_host_put(host); | |
7640 | ||
7641 | fail_reenable_msix: | |
7642 | fail_set_dma_mask: | |
7643 | fail_ready_state: | |
7644 | ||
7645 | pci_disable_device(pdev); | |
7646 | ||
7647 | return -ENODEV; | |
7648 | } | |
7649 | #else | |
7650 | #define megasas_suspend NULL | |
7651 | #define megasas_resume NULL | |
7652 | #endif | |
7653 | ||
7654 | static inline int | |
7655 | megasas_wait_for_adapter_operational(struct megasas_instance *instance) | |
7656 | { | |
7657 | int wait_time = MEGASAS_RESET_WAIT_TIME * 2; | |
7658 | int i; | |
7659 | u8 adp_state; | |
7660 | ||
7661 | for (i = 0; i < wait_time; i++) { | |
7662 | adp_state = atomic_read(&instance->adprecovery); | |
7663 | if ((adp_state == MEGASAS_HBA_OPERATIONAL) || | |
7664 | (adp_state == MEGASAS_HW_CRITICAL_ERROR)) | |
7665 | break; | |
7666 | ||
7667 | if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) | |
7668 | dev_notice(&instance->pdev->dev, "waiting for controller reset to finish\n"); | |
7669 | ||
7670 | msleep(1000); | |
7671 | } | |
7672 | ||
7673 | if (adp_state != MEGASAS_HBA_OPERATIONAL) { | |
7674 | dev_info(&instance->pdev->dev, | |
7675 | "%s HBA failed to become operational, adp_state %d\n", | |
7676 | __func__, adp_state); | |
7677 | return 1; | |
7678 | } | |
7679 | ||
7680 | return 0; | |
7681 | } | |
7682 | ||
7683 | /** | |
7684 | * megasas_detach_one - PCI hot"un"plug entry point | |
7685 | * @pdev: PCI device structure | |
7686 | */ | |
7687 | static void megasas_detach_one(struct pci_dev *pdev) | |
7688 | { | |
7689 | int i; | |
7690 | struct Scsi_Host *host; | |
7691 | struct megasas_instance *instance; | |
7692 | struct fusion_context *fusion; | |
7693 | u32 pd_seq_map_sz; | |
7694 | ||
7695 | instance = pci_get_drvdata(pdev); | |
7696 | ||
7697 | if (!instance) | |
7698 | return; | |
7699 | ||
7700 | host = instance->host; | |
7701 | fusion = instance->ctrl_context; | |
7702 | ||
7703 | /* Shutdown SR-IOV heartbeat timer */ | |
7704 | if (instance->requestorId && !instance->skip_heartbeat_timer_del) | |
7705 | del_timer_sync(&instance->sriov_heartbeat_timer); | |
7706 | ||
7707 | /* Stop the FW fault detection watchdog */ | |
7708 | if (instance->adapter_type != MFI_SERIES) | |
7709 | megasas_fusion_stop_watchdog(instance); | |
7710 | ||
7711 | if (instance->fw_crash_state != UNAVAILABLE) | |
7712 | megasas_free_host_crash_buffer(instance); | |
7713 | scsi_remove_host(instance->host); | |
7714 | instance->unload = 1; | |
7715 | ||
7716 | if (megasas_wait_for_adapter_operational(instance)) | |
7717 | goto skip_firing_dcmds; | |
7718 | ||
7719 | megasas_flush_cache(instance); | |
7720 | megasas_shutdown_controller(instance, MR_DCMD_CTRL_SHUTDOWN); | |
7721 | ||
7722 | skip_firing_dcmds: | |
7723 | /* cancel the delayed work if this work still in queue*/ | |
7724 | if (instance->ev != NULL) { | |
7725 | struct megasas_aen_event *ev = instance->ev; | |
7726 | cancel_delayed_work_sync(&ev->hotplug_work); | |
7727 | instance->ev = NULL; | |
7728 | } | |
7729 | ||
7730 | /* cancel all wait events */ | |
7731 | wake_up_all(&instance->int_cmd_wait_q); | |
7732 | ||
7733 | tasklet_kill(&instance->isr_tasklet); | |
7734 | ||
7735 | /* | |
7736 | * Take the instance off the instance array. Note that we will not | |
7737 | * decrement the max_index. We let this array be sparse array | |
7738 | */ | |
7739 | for (i = 0; i < megasas_mgmt_info.max_index; i++) { | |
7740 | if (megasas_mgmt_info.instance[i] == instance) { | |
7741 | megasas_mgmt_info.count--; | |
7742 | megasas_mgmt_info.instance[i] = NULL; | |
7743 | ||
7744 | break; | |
7745 | } | |
7746 | } | |
7747 | ||
7748 | instance->instancet->disable_intr(instance); | |
7749 | ||
7750 | megasas_destroy_irqs(instance); | |
7751 | ||
7752 | if (instance->msix_vectors) | |
7753 | pci_free_irq_vectors(instance->pdev); | |
7754 | ||
7755 | if (instance->adapter_type >= VENTURA_SERIES) { | |
7756 | for (i = 0; i < MAX_LOGICAL_DRIVES_EXT; ++i) | |
7757 | kfree(fusion->stream_detect_by_ld[i]); | |
7758 | kfree(fusion->stream_detect_by_ld); | |
7759 | fusion->stream_detect_by_ld = NULL; | |
7760 | } | |
7761 | ||
7762 | ||
7763 | if (instance->adapter_type != MFI_SERIES) { | |
7764 | megasas_release_fusion(instance); | |
7765 | pd_seq_map_sz = sizeof(struct MR_PD_CFG_SEQ_NUM_SYNC) + | |
7766 | (sizeof(struct MR_PD_CFG_SEQ) * | |
7767 | (MAX_PHYSICAL_DEVICES - 1)); | |
7768 | for (i = 0; i < 2 ; i++) { | |
7769 | if (fusion->ld_map[i]) | |
7770 | dma_free_coherent(&instance->pdev->dev, | |
7771 | fusion->max_map_sz, | |
7772 | fusion->ld_map[i], | |
7773 | fusion->ld_map_phys[i]); | |
7774 | if (fusion->ld_drv_map[i]) { | |
7775 | if (is_vmalloc_addr(fusion->ld_drv_map[i])) | |
7776 | vfree(fusion->ld_drv_map[i]); | |
7777 | else | |
7778 | free_pages((ulong)fusion->ld_drv_map[i], | |
7779 | fusion->drv_map_pages); | |
7780 | } | |
7781 | ||
7782 | if (fusion->pd_seq_sync[i]) | |
7783 | dma_free_coherent(&instance->pdev->dev, | |
7784 | pd_seq_map_sz, | |
7785 | fusion->pd_seq_sync[i], | |
7786 | fusion->pd_seq_phys[i]); | |
7787 | } | |
7788 | } else { | |
7789 | megasas_release_mfi(instance); | |
7790 | } | |
7791 | ||
7792 | if (instance->vf_affiliation) | |
7793 | dma_free_coherent(&pdev->dev, (MAX_LOGICAL_DRIVES + 1) * | |
7794 | sizeof(struct MR_LD_VF_AFFILIATION), | |
7795 | instance->vf_affiliation, | |
7796 | instance->vf_affiliation_h); | |
7797 | ||
7798 | if (instance->vf_affiliation_111) | |
7799 | dma_free_coherent(&pdev->dev, | |
7800 | sizeof(struct MR_LD_VF_AFFILIATION_111), | |
7801 | instance->vf_affiliation_111, | |
7802 | instance->vf_affiliation_111_h); | |
7803 | ||
7804 | if (instance->hb_host_mem) | |
7805 | dma_free_coherent(&pdev->dev, sizeof(struct MR_CTRL_HB_HOST_MEM), | |
7806 | instance->hb_host_mem, | |
7807 | instance->hb_host_mem_h); | |
7808 | ||
7809 | megasas_free_ctrl_dma_buffers(instance); | |
7810 | ||
7811 | megasas_free_ctrl_mem(instance); | |
7812 | ||
7813 | megasas_destroy_debugfs(instance); | |
7814 | ||
7815 | scsi_host_put(host); | |
7816 | ||
7817 | pci_disable_device(pdev); | |
7818 | } | |
7819 | ||
7820 | /** | |
7821 | * megasas_shutdown - Shutdown entry point | |
7822 | * @device: Generic device structure | |
7823 | */ | |
7824 | static void megasas_shutdown(struct pci_dev *pdev) | |
7825 | { | |
7826 | struct megasas_instance *instance = pci_get_drvdata(pdev); | |
7827 | ||
7828 | if (!instance) | |
7829 | return; | |
7830 | ||
7831 | instance->unload = 1; | |
7832 | ||
7833 | if (megasas_wait_for_adapter_operational(instance)) | |
7834 | goto skip_firing_dcmds; | |
7835 | ||
7836 | megasas_flush_cache(instance); | |
7837 | megasas_shutdown_controller(instance, MR_DCMD_CTRL_SHUTDOWN); | |
7838 | ||
7839 | skip_firing_dcmds: | |
7840 | instance->instancet->disable_intr(instance); | |
7841 | megasas_destroy_irqs(instance); | |
7842 | ||
7843 | if (instance->msix_vectors) | |
7844 | pci_free_irq_vectors(instance->pdev); | |
7845 | } | |
7846 | ||
7847 | /** | |
7848 | * megasas_mgmt_open - char node "open" entry point | |
7849 | */ | |
7850 | static int megasas_mgmt_open(struct inode *inode, struct file *filep) | |
7851 | { | |
7852 | /* | |
7853 | * Allow only those users with admin rights | |
7854 | */ | |
7855 | if (!capable(CAP_SYS_ADMIN)) | |
7856 | return -EACCES; | |
7857 | ||
7858 | return 0; | |
7859 | } | |
7860 | ||
7861 | /** | |
7862 | * megasas_mgmt_fasync - Async notifier registration from applications | |
7863 | * | |
7864 | * This function adds the calling process to a driver global queue. When an | |
7865 | * event occurs, SIGIO will be sent to all processes in this queue. | |
7866 | */ | |
7867 | static int megasas_mgmt_fasync(int fd, struct file *filep, int mode) | |
7868 | { | |
7869 | int rc; | |
7870 | ||
7871 | mutex_lock(&megasas_async_queue_mutex); | |
7872 | ||
7873 | rc = fasync_helper(fd, filep, mode, &megasas_async_queue); | |
7874 | ||
7875 | mutex_unlock(&megasas_async_queue_mutex); | |
7876 | ||
7877 | if (rc >= 0) { | |
7878 | /* For sanity check when we get ioctl */ | |
7879 | filep->private_data = filep; | |
7880 | return 0; | |
7881 | } | |
7882 | ||
7883 | printk(KERN_DEBUG "megasas: fasync_helper failed [%d]\n", rc); | |
7884 | ||
7885 | return rc; | |
7886 | } | |
7887 | ||
7888 | /** | |
7889 | * megasas_mgmt_poll - char node "poll" entry point | |
7890 | * */ | |
7891 | static __poll_t megasas_mgmt_poll(struct file *file, poll_table *wait) | |
7892 | { | |
7893 | __poll_t mask; | |
7894 | unsigned long flags; | |
7895 | ||
7896 | poll_wait(file, &megasas_poll_wait, wait); | |
7897 | spin_lock_irqsave(&poll_aen_lock, flags); | |
7898 | if (megasas_poll_wait_aen) | |
7899 | mask = (EPOLLIN | EPOLLRDNORM); | |
7900 | else | |
7901 | mask = 0; | |
7902 | megasas_poll_wait_aen = 0; | |
7903 | spin_unlock_irqrestore(&poll_aen_lock, flags); | |
7904 | return mask; | |
7905 | } | |
7906 | ||
7907 | /* | |
7908 | * megasas_set_crash_dump_params_ioctl: | |
7909 | * Send CRASH_DUMP_MODE DCMD to all controllers | |
7910 | * @cmd: MFI command frame | |
7911 | */ | |
7912 | ||
7913 | static int megasas_set_crash_dump_params_ioctl(struct megasas_cmd *cmd) | |
7914 | { | |
7915 | struct megasas_instance *local_instance; | |
7916 | int i, error = 0; | |
7917 | int crash_support; | |
7918 | ||
7919 | crash_support = cmd->frame->dcmd.mbox.w[0]; | |
7920 | ||
7921 | for (i = 0; i < megasas_mgmt_info.max_index; i++) { | |
7922 | local_instance = megasas_mgmt_info.instance[i]; | |
7923 | if (local_instance && local_instance->crash_dump_drv_support) { | |
7924 | if ((atomic_read(&local_instance->adprecovery) == | |
7925 | MEGASAS_HBA_OPERATIONAL) && | |
7926 | !megasas_set_crash_dump_params(local_instance, | |
7927 | crash_support)) { | |
7928 | local_instance->crash_dump_app_support = | |
7929 | crash_support; | |
7930 | dev_info(&local_instance->pdev->dev, | |
7931 | "Application firmware crash " | |
7932 | "dump mode set success\n"); | |
7933 | error = 0; | |
7934 | } else { | |
7935 | dev_info(&local_instance->pdev->dev, | |
7936 | "Application firmware crash " | |
7937 | "dump mode set failed\n"); | |
7938 | error = -1; | |
7939 | } | |
7940 | } | |
7941 | } | |
7942 | return error; | |
7943 | } | |
7944 | ||
7945 | /** | |
7946 | * megasas_mgmt_fw_ioctl - Issues management ioctls to FW | |
7947 | * @instance: Adapter soft state | |
7948 | * @argp: User's ioctl packet | |
7949 | */ | |
7950 | static int | |
7951 | megasas_mgmt_fw_ioctl(struct megasas_instance *instance, | |
7952 | struct megasas_iocpacket __user * user_ioc, | |
7953 | struct megasas_iocpacket *ioc) | |
7954 | { | |
7955 | struct megasas_sge64 *kern_sge64 = NULL; | |
7956 | struct megasas_sge32 *kern_sge32 = NULL; | |
7957 | struct megasas_cmd *cmd; | |
7958 | void *kbuff_arr[MAX_IOCTL_SGE]; | |
7959 | dma_addr_t buf_handle = 0; | |
7960 | int error = 0, i; | |
7961 | void *sense = NULL; | |
7962 | dma_addr_t sense_handle; | |
7963 | unsigned long *sense_ptr; | |
7964 | u32 opcode = 0; | |
7965 | ||
7966 | memset(kbuff_arr, 0, sizeof(kbuff_arr)); | |
7967 | ||
7968 | if (ioc->sge_count > MAX_IOCTL_SGE) { | |
7969 | dev_printk(KERN_DEBUG, &instance->pdev->dev, "SGE count [%d] > max limit [%d]\n", | |
7970 | ioc->sge_count, MAX_IOCTL_SGE); | |
7971 | return -EINVAL; | |
7972 | } | |
7973 | ||
7974 | if ((ioc->frame.hdr.cmd >= MFI_CMD_OP_COUNT) || | |
7975 | ((ioc->frame.hdr.cmd == MFI_CMD_NVME) && | |
7976 | !instance->support_nvme_passthru) || | |
7977 | ((ioc->frame.hdr.cmd == MFI_CMD_TOOLBOX) && | |
7978 | !instance->support_pci_lane_margining)) { | |
7979 | dev_err(&instance->pdev->dev, | |
7980 | "Received invalid ioctl command 0x%x\n", | |
7981 | ioc->frame.hdr.cmd); | |
7982 | return -ENOTSUPP; | |
7983 | } | |
7984 | ||
7985 | cmd = megasas_get_cmd(instance); | |
7986 | if (!cmd) { | |
7987 | dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to get a cmd packet\n"); | |
7988 | return -ENOMEM; | |
7989 | } | |
7990 | ||
7991 | /* | |
7992 | * User's IOCTL packet has 2 frames (maximum). Copy those two | |
7993 | * frames into our cmd's frames. cmd->frame's context will get | |
7994 | * overwritten when we copy from user's frames. So set that value | |
7995 | * alone separately | |
7996 | */ | |
7997 | memcpy(cmd->frame, ioc->frame.raw, 2 * MEGAMFI_FRAME_SIZE); | |
7998 | cmd->frame->hdr.context = cpu_to_le32(cmd->index); | |
7999 | cmd->frame->hdr.pad_0 = 0; | |
8000 | ||
8001 | cmd->frame->hdr.flags &= (~MFI_FRAME_IEEE); | |
8002 | ||
8003 | if (instance->consistent_mask_64bit) | |
8004 | cmd->frame->hdr.flags |= cpu_to_le16((MFI_FRAME_SGL64 | | |
8005 | MFI_FRAME_SENSE64)); | |
8006 | else | |
8007 | cmd->frame->hdr.flags &= cpu_to_le16(~(MFI_FRAME_SGL64 | | |
8008 | MFI_FRAME_SENSE64)); | |
8009 | ||
8010 | if (cmd->frame->hdr.cmd == MFI_CMD_DCMD) | |
8011 | opcode = le32_to_cpu(cmd->frame->dcmd.opcode); | |
8012 | ||
8013 | if (opcode == MR_DCMD_CTRL_SHUTDOWN) { | |
8014 | mutex_lock(&instance->reset_mutex); | |
8015 | if (megasas_get_ctrl_info(instance) != DCMD_SUCCESS) { | |
8016 | megasas_return_cmd(instance, cmd); | |
8017 | mutex_unlock(&instance->reset_mutex); | |
8018 | return -1; | |
8019 | } | |
8020 | mutex_unlock(&instance->reset_mutex); | |
8021 | } | |
8022 | ||
8023 | if (opcode == MR_DRIVER_SET_APP_CRASHDUMP_MODE) { | |
8024 | error = megasas_set_crash_dump_params_ioctl(cmd); | |
8025 | megasas_return_cmd(instance, cmd); | |
8026 | return error; | |
8027 | } | |
8028 | ||
8029 | /* | |
8030 | * The management interface between applications and the fw uses | |
8031 | * MFI frames. E.g, RAID configuration changes, LD property changes | |
8032 | * etc are accomplishes through different kinds of MFI frames. The | |
8033 | * driver needs to care only about substituting user buffers with | |
8034 | * kernel buffers in SGLs. The location of SGL is embedded in the | |
8035 | * struct iocpacket itself. | |
8036 | */ | |
8037 | if (instance->consistent_mask_64bit) | |
8038 | kern_sge64 = (struct megasas_sge64 *) | |
8039 | ((unsigned long)cmd->frame + ioc->sgl_off); | |
8040 | else | |
8041 | kern_sge32 = (struct megasas_sge32 *) | |
8042 | ((unsigned long)cmd->frame + ioc->sgl_off); | |
8043 | ||
8044 | /* | |
8045 | * For each user buffer, create a mirror buffer and copy in | |
8046 | */ | |
8047 | for (i = 0; i < ioc->sge_count; i++) { | |
8048 | if (!ioc->sgl[i].iov_len) | |
8049 | continue; | |
8050 | ||
8051 | kbuff_arr[i] = dma_alloc_coherent(&instance->pdev->dev, | |
8052 | ioc->sgl[i].iov_len, | |
8053 | &buf_handle, GFP_KERNEL); | |
8054 | if (!kbuff_arr[i]) { | |
8055 | dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to alloc " | |
8056 | "kernel SGL buffer for IOCTL\n"); | |
8057 | error = -ENOMEM; | |
8058 | goto out; | |
8059 | } | |
8060 | ||
8061 | /* | |
8062 | * We don't change the dma_coherent_mask, so | |
8063 | * dma_alloc_coherent only returns 32bit addresses | |
8064 | */ | |
8065 | if (instance->consistent_mask_64bit) { | |
8066 | kern_sge64[i].phys_addr = cpu_to_le64(buf_handle); | |
8067 | kern_sge64[i].length = cpu_to_le32(ioc->sgl[i].iov_len); | |
8068 | } else { | |
8069 | kern_sge32[i].phys_addr = cpu_to_le32(buf_handle); | |
8070 | kern_sge32[i].length = cpu_to_le32(ioc->sgl[i].iov_len); | |
8071 | } | |
8072 | ||
8073 | /* | |
8074 | * We created a kernel buffer corresponding to the | |
8075 | * user buffer. Now copy in from the user buffer | |
8076 | */ | |
8077 | if (copy_from_user(kbuff_arr[i], ioc->sgl[i].iov_base, | |
8078 | (u32) (ioc->sgl[i].iov_len))) { | |
8079 | error = -EFAULT; | |
8080 | goto out; | |
8081 | } | |
8082 | } | |
8083 | ||
8084 | if (ioc->sense_len) { | |
8085 | sense = dma_alloc_coherent(&instance->pdev->dev, ioc->sense_len, | |
8086 | &sense_handle, GFP_KERNEL); | |
8087 | if (!sense) { | |
8088 | error = -ENOMEM; | |
8089 | goto out; | |
8090 | } | |
8091 | ||
8092 | sense_ptr = | |
8093 | (unsigned long *) ((unsigned long)cmd->frame + ioc->sense_off); | |
8094 | if (instance->consistent_mask_64bit) | |
8095 | *sense_ptr = cpu_to_le64(sense_handle); | |
8096 | else | |
8097 | *sense_ptr = cpu_to_le32(sense_handle); | |
8098 | } | |
8099 | ||
8100 | /* | |
8101 | * Set the sync_cmd flag so that the ISR knows not to complete this | |
8102 | * cmd to the SCSI mid-layer | |
8103 | */ | |
8104 | cmd->sync_cmd = 1; | |
8105 | if (megasas_issue_blocked_cmd(instance, cmd, 0) == DCMD_NOT_FIRED) { | |
8106 | cmd->sync_cmd = 0; | |
8107 | dev_err(&instance->pdev->dev, | |
8108 | "return -EBUSY from %s %d cmd 0x%x opcode 0x%x cmd->cmd_status_drv 0x%x\n", | |
8109 | __func__, __LINE__, cmd->frame->hdr.cmd, opcode, | |
8110 | cmd->cmd_status_drv); | |
8111 | return -EBUSY; | |
8112 | } | |
8113 | ||
8114 | cmd->sync_cmd = 0; | |
8115 | ||
8116 | if (instance->unload == 1) { | |
8117 | dev_info(&instance->pdev->dev, "Driver unload is in progress " | |
8118 | "don't submit data to application\n"); | |
8119 | goto out; | |
8120 | } | |
8121 | /* | |
8122 | * copy out the kernel buffers to user buffers | |
8123 | */ | |
8124 | for (i = 0; i < ioc->sge_count; i++) { | |
8125 | if (copy_to_user(ioc->sgl[i].iov_base, kbuff_arr[i], | |
8126 | ioc->sgl[i].iov_len)) { | |
8127 | error = -EFAULT; | |
8128 | goto out; | |
8129 | } | |
8130 | } | |
8131 | ||
8132 | /* | |
8133 | * copy out the sense | |
8134 | */ | |
8135 | if (ioc->sense_len) { | |
8136 | /* | |
8137 | * sense_ptr points to the location that has the user | |
8138 | * sense buffer address | |
8139 | */ | |
8140 | sense_ptr = (unsigned long *) ((unsigned long)ioc->frame.raw + | |
8141 | ioc->sense_off); | |
8142 | ||
8143 | if (copy_to_user((void __user *)((unsigned long) | |
8144 | get_unaligned((unsigned long *)sense_ptr)), | |
8145 | sense, ioc->sense_len)) { | |
8146 | dev_err(&instance->pdev->dev, "Failed to copy out to user " | |
8147 | "sense data\n"); | |
8148 | error = -EFAULT; | |
8149 | goto out; | |
8150 | } | |
8151 | } | |
8152 | ||
8153 | /* | |
8154 | * copy the status codes returned by the fw | |
8155 | */ | |
8156 | if (copy_to_user(&user_ioc->frame.hdr.cmd_status, | |
8157 | &cmd->frame->hdr.cmd_status, sizeof(u8))) { | |
8158 | dev_printk(KERN_DEBUG, &instance->pdev->dev, "Error copying out cmd_status\n"); | |
8159 | error = -EFAULT; | |
8160 | } | |
8161 | ||
8162 | out: | |
8163 | if (sense) { | |
8164 | dma_free_coherent(&instance->pdev->dev, ioc->sense_len, | |
8165 | sense, sense_handle); | |
8166 | } | |
8167 | ||
8168 | for (i = 0; i < ioc->sge_count; i++) { | |
8169 | if (kbuff_arr[i]) { | |
8170 | if (instance->consistent_mask_64bit) | |
8171 | dma_free_coherent(&instance->pdev->dev, | |
8172 | le32_to_cpu(kern_sge64[i].length), | |
8173 | kbuff_arr[i], | |
8174 | le64_to_cpu(kern_sge64[i].phys_addr)); | |
8175 | else | |
8176 | dma_free_coherent(&instance->pdev->dev, | |
8177 | le32_to_cpu(kern_sge32[i].length), | |
8178 | kbuff_arr[i], | |
8179 | le32_to_cpu(kern_sge32[i].phys_addr)); | |
8180 | kbuff_arr[i] = NULL; | |
8181 | } | |
8182 | } | |
8183 | ||
8184 | megasas_return_cmd(instance, cmd); | |
8185 | return error; | |
8186 | } | |
8187 | ||
8188 | static int megasas_mgmt_ioctl_fw(struct file *file, unsigned long arg) | |
8189 | { | |
8190 | struct megasas_iocpacket __user *user_ioc = | |
8191 | (struct megasas_iocpacket __user *)arg; | |
8192 | struct megasas_iocpacket *ioc; | |
8193 | struct megasas_instance *instance; | |
8194 | int error; | |
8195 | ||
8196 | ioc = memdup_user(user_ioc, sizeof(*ioc)); | |
8197 | if (IS_ERR(ioc)) | |
8198 | return PTR_ERR(ioc); | |
8199 | ||
8200 | instance = megasas_lookup_instance(ioc->host_no); | |
8201 | if (!instance) { | |
8202 | error = -ENODEV; | |
8203 | goto out_kfree_ioc; | |
8204 | } | |
8205 | ||
8206 | /* Block ioctls in VF mode */ | |
8207 | if (instance->requestorId && !allow_vf_ioctls) { | |
8208 | error = -ENODEV; | |
8209 | goto out_kfree_ioc; | |
8210 | } | |
8211 | ||
8212 | if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { | |
8213 | dev_err(&instance->pdev->dev, "Controller in crit error\n"); | |
8214 | error = -ENODEV; | |
8215 | goto out_kfree_ioc; | |
8216 | } | |
8217 | ||
8218 | if (instance->unload == 1) { | |
8219 | error = -ENODEV; | |
8220 | goto out_kfree_ioc; | |
8221 | } | |
8222 | ||
8223 | if (down_interruptible(&instance->ioctl_sem)) { | |
8224 | error = -ERESTARTSYS; | |
8225 | goto out_kfree_ioc; | |
8226 | } | |
8227 | ||
8228 | if (megasas_wait_for_adapter_operational(instance)) { | |
8229 | error = -ENODEV; | |
8230 | goto out_up; | |
8231 | } | |
8232 | ||
8233 | error = megasas_mgmt_fw_ioctl(instance, user_ioc, ioc); | |
8234 | out_up: | |
8235 | up(&instance->ioctl_sem); | |
8236 | ||
8237 | out_kfree_ioc: | |
8238 | kfree(ioc); | |
8239 | return error; | |
8240 | } | |
8241 | ||
8242 | static int megasas_mgmt_ioctl_aen(struct file *file, unsigned long arg) | |
8243 | { | |
8244 | struct megasas_instance *instance; | |
8245 | struct megasas_aen aen; | |
8246 | int error; | |
8247 | ||
8248 | if (file->private_data != file) { | |
8249 | printk(KERN_DEBUG "megasas: fasync_helper was not " | |
8250 | "called first\n"); | |
8251 | return -EINVAL; | |
8252 | } | |
8253 | ||
8254 | if (copy_from_user(&aen, (void __user *)arg, sizeof(aen))) | |
8255 | return -EFAULT; | |
8256 | ||
8257 | instance = megasas_lookup_instance(aen.host_no); | |
8258 | ||
8259 | if (!instance) | |
8260 | return -ENODEV; | |
8261 | ||
8262 | if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { | |
8263 | return -ENODEV; | |
8264 | } | |
8265 | ||
8266 | if (instance->unload == 1) { | |
8267 | return -ENODEV; | |
8268 | } | |
8269 | ||
8270 | if (megasas_wait_for_adapter_operational(instance)) | |
8271 | return -ENODEV; | |
8272 | ||
8273 | mutex_lock(&instance->reset_mutex); | |
8274 | error = megasas_register_aen(instance, aen.seq_num, | |
8275 | aen.class_locale_word); | |
8276 | mutex_unlock(&instance->reset_mutex); | |
8277 | return error; | |
8278 | } | |
8279 | ||
8280 | /** | |
8281 | * megasas_mgmt_ioctl - char node ioctl entry point | |
8282 | */ | |
8283 | static long | |
8284 | megasas_mgmt_ioctl(struct file *file, unsigned int cmd, unsigned long arg) | |
8285 | { | |
8286 | switch (cmd) { | |
8287 | case MEGASAS_IOC_FIRMWARE: | |
8288 | return megasas_mgmt_ioctl_fw(file, arg); | |
8289 | ||
8290 | case MEGASAS_IOC_GET_AEN: | |
8291 | return megasas_mgmt_ioctl_aen(file, arg); | |
8292 | } | |
8293 | ||
8294 | return -ENOTTY; | |
8295 | } | |
8296 | ||
8297 | #ifdef CONFIG_COMPAT | |
8298 | static int megasas_mgmt_compat_ioctl_fw(struct file *file, unsigned long arg) | |
8299 | { | |
8300 | struct compat_megasas_iocpacket __user *cioc = | |
8301 | (struct compat_megasas_iocpacket __user *)arg; | |
8302 | struct megasas_iocpacket __user *ioc = | |
8303 | compat_alloc_user_space(sizeof(struct megasas_iocpacket)); | |
8304 | int i; | |
8305 | int error = 0; | |
8306 | compat_uptr_t ptr; | |
8307 | u32 local_sense_off; | |
8308 | u32 local_sense_len; | |
8309 | u32 user_sense_off; | |
8310 | ||
8311 | if (clear_user(ioc, sizeof(*ioc))) | |
8312 | return -EFAULT; | |
8313 | ||
8314 | if (copy_in_user(&ioc->host_no, &cioc->host_no, sizeof(u16)) || | |
8315 | copy_in_user(&ioc->sgl_off, &cioc->sgl_off, sizeof(u32)) || | |
8316 | copy_in_user(&ioc->sense_off, &cioc->sense_off, sizeof(u32)) || | |
8317 | copy_in_user(&ioc->sense_len, &cioc->sense_len, sizeof(u32)) || | |
8318 | copy_in_user(ioc->frame.raw, cioc->frame.raw, 128) || | |
8319 | copy_in_user(&ioc->sge_count, &cioc->sge_count, sizeof(u32))) | |
8320 | return -EFAULT; | |
8321 | ||
8322 | /* | |
8323 | * The sense_ptr is used in megasas_mgmt_fw_ioctl only when | |
8324 | * sense_len is not null, so prepare the 64bit value under | |
8325 | * the same condition. | |
8326 | */ | |
8327 | if (get_user(local_sense_off, &ioc->sense_off) || | |
8328 | get_user(local_sense_len, &ioc->sense_len) || | |
8329 | get_user(user_sense_off, &cioc->sense_off)) | |
8330 | return -EFAULT; | |
8331 | ||
8332 | if (local_sense_off != user_sense_off) | |
8333 | return -EINVAL; | |
8334 | ||
8335 | if (local_sense_len) { | |
8336 | void __user **sense_ioc_ptr = | |
8337 | (void __user **)((u8 *)((unsigned long)&ioc->frame.raw) + local_sense_off); | |
8338 | compat_uptr_t *sense_cioc_ptr = | |
8339 | (compat_uptr_t *)(((unsigned long)&cioc->frame.raw) + user_sense_off); | |
8340 | if (get_user(ptr, sense_cioc_ptr) || | |
8341 | put_user(compat_ptr(ptr), sense_ioc_ptr)) | |
8342 | return -EFAULT; | |
8343 | } | |
8344 | ||
8345 | for (i = 0; i < MAX_IOCTL_SGE; i++) { | |
8346 | if (get_user(ptr, &cioc->sgl[i].iov_base) || | |
8347 | put_user(compat_ptr(ptr), &ioc->sgl[i].iov_base) || | |
8348 | copy_in_user(&ioc->sgl[i].iov_len, | |
8349 | &cioc->sgl[i].iov_len, sizeof(compat_size_t))) | |
8350 | return -EFAULT; | |
8351 | } | |
8352 | ||
8353 | error = megasas_mgmt_ioctl_fw(file, (unsigned long)ioc); | |
8354 | ||
8355 | if (copy_in_user(&cioc->frame.hdr.cmd_status, | |
8356 | &ioc->frame.hdr.cmd_status, sizeof(u8))) { | |
8357 | printk(KERN_DEBUG "megasas: error copy_in_user cmd_status\n"); | |
8358 | return -EFAULT; | |
8359 | } | |
8360 | return error; | |
8361 | } | |
8362 | ||
8363 | static long | |
8364 | megasas_mgmt_compat_ioctl(struct file *file, unsigned int cmd, | |
8365 | unsigned long arg) | |
8366 | { | |
8367 | switch (cmd) { | |
8368 | case MEGASAS_IOC_FIRMWARE32: | |
8369 | return megasas_mgmt_compat_ioctl_fw(file, arg); | |
8370 | case MEGASAS_IOC_GET_AEN: | |
8371 | return megasas_mgmt_ioctl_aen(file, arg); | |
8372 | } | |
8373 | ||
8374 | return -ENOTTY; | |
8375 | } | |
8376 | #endif | |
8377 | ||
8378 | /* | |
8379 | * File operations structure for management interface | |
8380 | */ | |
8381 | static const struct file_operations megasas_mgmt_fops = { | |
8382 | .owner = THIS_MODULE, | |
8383 | .open = megasas_mgmt_open, | |
8384 | .fasync = megasas_mgmt_fasync, | |
8385 | .unlocked_ioctl = megasas_mgmt_ioctl, | |
8386 | .poll = megasas_mgmt_poll, | |
8387 | #ifdef CONFIG_COMPAT | |
8388 | .compat_ioctl = megasas_mgmt_compat_ioctl, | |
8389 | #endif | |
8390 | .llseek = noop_llseek, | |
8391 | }; | |
8392 | ||
8393 | /* | |
8394 | * PCI hotplug support registration structure | |
8395 | */ | |
8396 | static struct pci_driver megasas_pci_driver = { | |
8397 | ||
8398 | .name = "megaraid_sas", | |
8399 | .id_table = megasas_pci_table, | |
8400 | .probe = megasas_probe_one, | |
8401 | .remove = megasas_detach_one, | |
8402 | .suspend = megasas_suspend, | |
8403 | .resume = megasas_resume, | |
8404 | .shutdown = megasas_shutdown, | |
8405 | }; | |
8406 | ||
8407 | /* | |
8408 | * Sysfs driver attributes | |
8409 | */ | |
8410 | static ssize_t version_show(struct device_driver *dd, char *buf) | |
8411 | { | |
8412 | return snprintf(buf, strlen(MEGASAS_VERSION) + 2, "%s\n", | |
8413 | MEGASAS_VERSION); | |
8414 | } | |
8415 | static DRIVER_ATTR_RO(version); | |
8416 | ||
8417 | static ssize_t release_date_show(struct device_driver *dd, char *buf) | |
8418 | { | |
8419 | return snprintf(buf, strlen(MEGASAS_RELDATE) + 2, "%s\n", | |
8420 | MEGASAS_RELDATE); | |
8421 | } | |
8422 | static DRIVER_ATTR_RO(release_date); | |
8423 | ||
8424 | static ssize_t support_poll_for_event_show(struct device_driver *dd, char *buf) | |
8425 | { | |
8426 | return sprintf(buf, "%u\n", support_poll_for_event); | |
8427 | } | |
8428 | static DRIVER_ATTR_RO(support_poll_for_event); | |
8429 | ||
8430 | static ssize_t support_device_change_show(struct device_driver *dd, char *buf) | |
8431 | { | |
8432 | return sprintf(buf, "%u\n", support_device_change); | |
8433 | } | |
8434 | static DRIVER_ATTR_RO(support_device_change); | |
8435 | ||
8436 | static ssize_t dbg_lvl_show(struct device_driver *dd, char *buf) | |
8437 | { | |
8438 | return sprintf(buf, "%u\n", megasas_dbg_lvl); | |
8439 | } | |
8440 | ||
8441 | static ssize_t dbg_lvl_store(struct device_driver *dd, const char *buf, | |
8442 | size_t count) | |
8443 | { | |
8444 | int retval = count; | |
8445 | ||
8446 | if (sscanf(buf, "%u", &megasas_dbg_lvl) < 1) { | |
8447 | printk(KERN_ERR "megasas: could not set dbg_lvl\n"); | |
8448 | retval = -EINVAL; | |
8449 | } | |
8450 | return retval; | |
8451 | } | |
8452 | static DRIVER_ATTR_RW(dbg_lvl); | |
8453 | ||
8454 | static ssize_t | |
8455 | support_nvme_encapsulation_show(struct device_driver *dd, char *buf) | |
8456 | { | |
8457 | return sprintf(buf, "%u\n", support_nvme_encapsulation); | |
8458 | } | |
8459 | ||
8460 | static DRIVER_ATTR_RO(support_nvme_encapsulation); | |
8461 | ||
8462 | static ssize_t | |
8463 | support_pci_lane_margining_show(struct device_driver *dd, char *buf) | |
8464 | { | |
8465 | return sprintf(buf, "%u\n", support_pci_lane_margining); | |
8466 | } | |
8467 | ||
8468 | static DRIVER_ATTR_RO(support_pci_lane_margining); | |
8469 | ||
8470 | static inline void megasas_remove_scsi_device(struct scsi_device *sdev) | |
8471 | { | |
8472 | sdev_printk(KERN_INFO, sdev, "SCSI device is removed\n"); | |
8473 | scsi_remove_device(sdev); | |
8474 | scsi_device_put(sdev); | |
8475 | } | |
8476 | ||
8477 | /** | |
8478 | * megasas_update_device_list - Update the PD and LD device list from FW | |
8479 | * after an AEN event notification | |
8480 | * @instance: Adapter soft state | |
8481 | * @event_type: Indicates type of event (PD or LD event) | |
8482 | * | |
8483 | * @return: Success or failure | |
8484 | * | |
8485 | * Issue DCMDs to Firmware to update the internal device list in driver. | |
8486 | * Based on the FW support, driver sends the HOST_DEVICE_LIST or combination | |
8487 | * of PD_LIST/LD_LIST_QUERY DCMDs to get the device list. | |
8488 | */ | |
8489 | static | |
8490 | int megasas_update_device_list(struct megasas_instance *instance, | |
8491 | int event_type) | |
8492 | { | |
8493 | int dcmd_ret = DCMD_SUCCESS; | |
8494 | ||
8495 | if (instance->enable_fw_dev_list) { | |
8496 | dcmd_ret = megasas_host_device_list_query(instance, false); | |
8497 | if (dcmd_ret != DCMD_SUCCESS) | |
8498 | goto out; | |
8499 | } else { | |
8500 | if (event_type & SCAN_PD_CHANNEL) { | |
8501 | dcmd_ret = megasas_get_pd_list(instance); | |
8502 | ||
8503 | if (dcmd_ret != DCMD_SUCCESS) | |
8504 | goto out; | |
8505 | } | |
8506 | ||
8507 | if (event_type & SCAN_VD_CHANNEL) { | |
8508 | if (!instance->requestorId || | |
8509 | (instance->requestorId && | |
8510 | megasas_get_ld_vf_affiliation(instance, 0))) { | |
8511 | dcmd_ret = megasas_ld_list_query(instance, | |
8512 | MR_LD_QUERY_TYPE_EXPOSED_TO_HOST); | |
8513 | if (dcmd_ret != DCMD_SUCCESS) | |
8514 | goto out; | |
8515 | } | |
8516 | } | |
8517 | } | |
8518 | ||
8519 | out: | |
8520 | return dcmd_ret; | |
8521 | } | |
8522 | ||
8523 | /** | |
8524 | * megasas_add_remove_devices - Add/remove devices to SCSI mid-layer | |
8525 | * after an AEN event notification | |
8526 | * @instance: Adapter soft state | |
8527 | * @scan_type: Indicates type of devices (PD/LD) to add | |
8528 | * @return void | |
8529 | */ | |
8530 | static | |
8531 | void megasas_add_remove_devices(struct megasas_instance *instance, | |
8532 | int scan_type) | |
8533 | { | |
8534 | int i, j; | |
8535 | u16 pd_index = 0; | |
8536 | u16 ld_index = 0; | |
8537 | u16 channel = 0, id = 0; | |
8538 | struct Scsi_Host *host; | |
8539 | struct scsi_device *sdev1; | |
8540 | struct MR_HOST_DEVICE_LIST *targetid_list = NULL; | |
8541 | struct MR_HOST_DEVICE_LIST_ENTRY *targetid_entry = NULL; | |
8542 | ||
8543 | host = instance->host; | |
8544 | ||
8545 | if (instance->enable_fw_dev_list) { | |
8546 | targetid_list = instance->host_device_list_buf; | |
8547 | for (i = 0; i < targetid_list->count; i++) { | |
8548 | targetid_entry = &targetid_list->host_device_list[i]; | |
8549 | if (targetid_entry->flags.u.bits.is_sys_pd) { | |
8550 | channel = le16_to_cpu(targetid_entry->target_id) / | |
8551 | MEGASAS_MAX_DEV_PER_CHANNEL; | |
8552 | id = le16_to_cpu(targetid_entry->target_id) % | |
8553 | MEGASAS_MAX_DEV_PER_CHANNEL; | |
8554 | } else { | |
8555 | channel = MEGASAS_MAX_PD_CHANNELS + | |
8556 | (le16_to_cpu(targetid_entry->target_id) / | |
8557 | MEGASAS_MAX_DEV_PER_CHANNEL); | |
8558 | id = le16_to_cpu(targetid_entry->target_id) % | |
8559 | MEGASAS_MAX_DEV_PER_CHANNEL; | |
8560 | } | |
8561 | sdev1 = scsi_device_lookup(host, channel, id, 0); | |
8562 | if (!sdev1) { | |
8563 | scsi_add_device(host, channel, id, 0); | |
8564 | } else { | |
8565 | scsi_device_put(sdev1); | |
8566 | } | |
8567 | } | |
8568 | } | |
8569 | ||
8570 | if (scan_type & SCAN_PD_CHANNEL) { | |
8571 | for (i = 0; i < MEGASAS_MAX_PD_CHANNELS; i++) { | |
8572 | for (j = 0; j < MEGASAS_MAX_DEV_PER_CHANNEL; j++) { | |
8573 | pd_index = i * MEGASAS_MAX_DEV_PER_CHANNEL + j; | |
8574 | sdev1 = scsi_device_lookup(host, i, j, 0); | |
8575 | if (instance->pd_list[pd_index].driveState == | |
8576 | MR_PD_STATE_SYSTEM) { | |
8577 | if (!sdev1) | |
8578 | scsi_add_device(host, i, j, 0); | |
8579 | else | |
8580 | scsi_device_put(sdev1); | |
8581 | } else { | |
8582 | if (sdev1) | |
8583 | megasas_remove_scsi_device(sdev1); | |
8584 | } | |
8585 | } | |
8586 | } | |
8587 | } | |
8588 | ||
8589 | if (scan_type & SCAN_VD_CHANNEL) { | |
8590 | for (i = 0; i < MEGASAS_MAX_LD_CHANNELS; i++) { | |
8591 | for (j = 0; j < MEGASAS_MAX_DEV_PER_CHANNEL; j++) { | |
8592 | ld_index = (i * MEGASAS_MAX_DEV_PER_CHANNEL) + j; | |
8593 | sdev1 = scsi_device_lookup(host, | |
8594 | MEGASAS_MAX_PD_CHANNELS + i, j, 0); | |
8595 | if (instance->ld_ids[ld_index] != 0xff) { | |
8596 | if (!sdev1) | |
8597 | scsi_add_device(host, MEGASAS_MAX_PD_CHANNELS + i, j, 0); | |
8598 | else | |
8599 | scsi_device_put(sdev1); | |
8600 | } else { | |
8601 | if (sdev1) | |
8602 | megasas_remove_scsi_device(sdev1); | |
8603 | } | |
8604 | } | |
8605 | } | |
8606 | } | |
8607 | ||
8608 | } | |
8609 | ||
8610 | static void | |
8611 | megasas_aen_polling(struct work_struct *work) | |
8612 | { | |
8613 | struct megasas_aen_event *ev = | |
8614 | container_of(work, struct megasas_aen_event, hotplug_work.work); | |
8615 | struct megasas_instance *instance = ev->instance; | |
8616 | union megasas_evt_class_locale class_locale; | |
8617 | int event_type = 0; | |
8618 | u32 seq_num; | |
8619 | int error; | |
8620 | u8 dcmd_ret = DCMD_SUCCESS; | |
8621 | ||
8622 | if (!instance) { | |
8623 | printk(KERN_ERR "invalid instance!\n"); | |
8624 | kfree(ev); | |
8625 | return; | |
8626 | } | |
8627 | ||
8628 | /* Don't run the event workqueue thread if OCR is running */ | |
8629 | mutex_lock(&instance->reset_mutex); | |
8630 | ||
8631 | instance->ev = NULL; | |
8632 | if (instance->evt_detail) { | |
8633 | megasas_decode_evt(instance); | |
8634 | ||
8635 | switch (le32_to_cpu(instance->evt_detail->code)) { | |
8636 | ||
8637 | case MR_EVT_PD_INSERTED: | |
8638 | case MR_EVT_PD_REMOVED: | |
8639 | event_type = SCAN_PD_CHANNEL; | |
8640 | break; | |
8641 | ||
8642 | case MR_EVT_LD_OFFLINE: | |
8643 | case MR_EVT_CFG_CLEARED: | |
8644 | case MR_EVT_LD_DELETED: | |
8645 | case MR_EVT_LD_CREATED: | |
8646 | event_type = SCAN_VD_CHANNEL; | |
8647 | break; | |
8648 | ||
8649 | case MR_EVT_CTRL_HOST_BUS_SCAN_REQUESTED: | |
8650 | case MR_EVT_FOREIGN_CFG_IMPORTED: | |
8651 | case MR_EVT_LD_STATE_CHANGE: | |
8652 | event_type = SCAN_PD_CHANNEL | SCAN_VD_CHANNEL; | |
8653 | dev_info(&instance->pdev->dev, "scanning for scsi%d...\n", | |
8654 | instance->host->host_no); | |
8655 | break; | |
8656 | ||
8657 | case MR_EVT_CTRL_PROP_CHANGED: | |
8658 | dcmd_ret = megasas_get_ctrl_info(instance); | |
8659 | if (dcmd_ret == DCMD_SUCCESS && | |
8660 | instance->snapdump_wait_time) { | |
8661 | megasas_get_snapdump_properties(instance); | |
8662 | dev_info(&instance->pdev->dev, | |
8663 | "Snap dump wait time\t: %d\n", | |
8664 | instance->snapdump_wait_time); | |
8665 | } | |
8666 | break; | |
8667 | default: | |
8668 | event_type = 0; | |
8669 | break; | |
8670 | } | |
8671 | } else { | |
8672 | dev_err(&instance->pdev->dev, "invalid evt_detail!\n"); | |
8673 | mutex_unlock(&instance->reset_mutex); | |
8674 | kfree(ev); | |
8675 | return; | |
8676 | } | |
8677 | ||
8678 | if (event_type) | |
8679 | dcmd_ret = megasas_update_device_list(instance, event_type); | |
8680 | ||
8681 | mutex_unlock(&instance->reset_mutex); | |
8682 | ||
8683 | if (event_type && dcmd_ret == DCMD_SUCCESS) | |
8684 | megasas_add_remove_devices(instance, event_type); | |
8685 | ||
8686 | if (dcmd_ret == DCMD_SUCCESS) | |
8687 | seq_num = le32_to_cpu(instance->evt_detail->seq_num) + 1; | |
8688 | else | |
8689 | seq_num = instance->last_seq_num; | |
8690 | ||
8691 | /* Register AEN with FW for latest sequence number plus 1 */ | |
8692 | class_locale.members.reserved = 0; | |
8693 | class_locale.members.locale = MR_EVT_LOCALE_ALL; | |
8694 | class_locale.members.class = MR_EVT_CLASS_DEBUG; | |
8695 | ||
8696 | if (instance->aen_cmd != NULL) { | |
8697 | kfree(ev); | |
8698 | return; | |
8699 | } | |
8700 | ||
8701 | mutex_lock(&instance->reset_mutex); | |
8702 | error = megasas_register_aen(instance, seq_num, | |
8703 | class_locale.word); | |
8704 | if (error) | |
8705 | dev_err(&instance->pdev->dev, | |
8706 | "register aen failed error %x\n", error); | |
8707 | ||
8708 | mutex_unlock(&instance->reset_mutex); | |
8709 | kfree(ev); | |
8710 | } | |
8711 | ||
8712 | /** | |
8713 | * megasas_init - Driver load entry point | |
8714 | */ | |
8715 | static int __init megasas_init(void) | |
8716 | { | |
8717 | int rval; | |
8718 | ||
8719 | /* | |
8720 | * Booted in kdump kernel, minimize memory footprints by | |
8721 | * disabling few features | |
8722 | */ | |
8723 | if (reset_devices) { | |
8724 | msix_vectors = 1; | |
8725 | rdpq_enable = 0; | |
8726 | dual_qdepth_disable = 1; | |
8727 | } | |
8728 | ||
8729 | /* | |
8730 | * Announce driver version and other information | |
8731 | */ | |
8732 | pr_info("megasas: %s\n", MEGASAS_VERSION); | |
8733 | ||
8734 | spin_lock_init(&poll_aen_lock); | |
8735 | ||
8736 | support_poll_for_event = 2; | |
8737 | support_device_change = 1; | |
8738 | support_nvme_encapsulation = true; | |
8739 | support_pci_lane_margining = true; | |
8740 | ||
8741 | memset(&megasas_mgmt_info, 0, sizeof(megasas_mgmt_info)); | |
8742 | ||
8743 | /* | |
8744 | * Register character device node | |
8745 | */ | |
8746 | rval = register_chrdev(0, "megaraid_sas_ioctl", &megasas_mgmt_fops); | |
8747 | ||
8748 | if (rval < 0) { | |
8749 | printk(KERN_DEBUG "megasas: failed to open device node\n"); | |
8750 | return rval; | |
8751 | } | |
8752 | ||
8753 | megasas_mgmt_majorno = rval; | |
8754 | ||
8755 | megasas_init_debugfs(); | |
8756 | ||
8757 | /* | |
8758 | * Register ourselves as PCI hotplug module | |
8759 | */ | |
8760 | rval = pci_register_driver(&megasas_pci_driver); | |
8761 | ||
8762 | if (rval) { | |
8763 | printk(KERN_DEBUG "megasas: PCI hotplug registration failed \n"); | |
8764 | goto err_pcidrv; | |
8765 | } | |
8766 | ||
8767 | if ((event_log_level < MFI_EVT_CLASS_DEBUG) || | |
8768 | (event_log_level > MFI_EVT_CLASS_DEAD)) { | |
8769 | pr_warn("megaraid_sas: provided event log level is out of range, setting it to default 2(CLASS_CRITICAL), permissible range is: -2 to 4\n"); | |
8770 | event_log_level = MFI_EVT_CLASS_CRITICAL; | |
8771 | } | |
8772 | ||
8773 | rval = driver_create_file(&megasas_pci_driver.driver, | |
8774 | &driver_attr_version); | |
8775 | if (rval) | |
8776 | goto err_dcf_attr_ver; | |
8777 | ||
8778 | rval = driver_create_file(&megasas_pci_driver.driver, | |
8779 | &driver_attr_release_date); | |
8780 | if (rval) | |
8781 | goto err_dcf_rel_date; | |
8782 | ||
8783 | rval = driver_create_file(&megasas_pci_driver.driver, | |
8784 | &driver_attr_support_poll_for_event); | |
8785 | if (rval) | |
8786 | goto err_dcf_support_poll_for_event; | |
8787 | ||
8788 | rval = driver_create_file(&megasas_pci_driver.driver, | |
8789 | &driver_attr_dbg_lvl); | |
8790 | if (rval) | |
8791 | goto err_dcf_dbg_lvl; | |
8792 | rval = driver_create_file(&megasas_pci_driver.driver, | |
8793 | &driver_attr_support_device_change); | |
8794 | if (rval) | |
8795 | goto err_dcf_support_device_change; | |
8796 | ||
8797 | rval = driver_create_file(&megasas_pci_driver.driver, | |
8798 | &driver_attr_support_nvme_encapsulation); | |
8799 | if (rval) | |
8800 | goto err_dcf_support_nvme_encapsulation; | |
8801 | ||
8802 | rval = driver_create_file(&megasas_pci_driver.driver, | |
8803 | &driver_attr_support_pci_lane_margining); | |
8804 | if (rval) | |
8805 | goto err_dcf_support_pci_lane_margining; | |
8806 | ||
8807 | return rval; | |
8808 | ||
8809 | err_dcf_support_pci_lane_margining: | |
8810 | driver_remove_file(&megasas_pci_driver.driver, | |
8811 | &driver_attr_support_nvme_encapsulation); | |
8812 | ||
8813 | err_dcf_support_nvme_encapsulation: | |
8814 | driver_remove_file(&megasas_pci_driver.driver, | |
8815 | &driver_attr_support_device_change); | |
8816 | ||
8817 | err_dcf_support_device_change: | |
8818 | driver_remove_file(&megasas_pci_driver.driver, | |
8819 | &driver_attr_dbg_lvl); | |
8820 | err_dcf_dbg_lvl: | |
8821 | driver_remove_file(&megasas_pci_driver.driver, | |
8822 | &driver_attr_support_poll_for_event); | |
8823 | err_dcf_support_poll_for_event: | |
8824 | driver_remove_file(&megasas_pci_driver.driver, | |
8825 | &driver_attr_release_date); | |
8826 | err_dcf_rel_date: | |
8827 | driver_remove_file(&megasas_pci_driver.driver, &driver_attr_version); | |
8828 | err_dcf_attr_ver: | |
8829 | pci_unregister_driver(&megasas_pci_driver); | |
8830 | err_pcidrv: | |
8831 | megasas_exit_debugfs(); | |
8832 | unregister_chrdev(megasas_mgmt_majorno, "megaraid_sas_ioctl"); | |
8833 | return rval; | |
8834 | } | |
8835 | ||
8836 | /** | |
8837 | * megasas_exit - Driver unload entry point | |
8838 | */ | |
8839 | static void __exit megasas_exit(void) | |
8840 | { | |
8841 | driver_remove_file(&megasas_pci_driver.driver, | |
8842 | &driver_attr_dbg_lvl); | |
8843 | driver_remove_file(&megasas_pci_driver.driver, | |
8844 | &driver_attr_support_poll_for_event); | |
8845 | driver_remove_file(&megasas_pci_driver.driver, | |
8846 | &driver_attr_support_device_change); | |
8847 | driver_remove_file(&megasas_pci_driver.driver, | |
8848 | &driver_attr_release_date); | |
8849 | driver_remove_file(&megasas_pci_driver.driver, &driver_attr_version); | |
8850 | driver_remove_file(&megasas_pci_driver.driver, | |
8851 | &driver_attr_support_nvme_encapsulation); | |
8852 | driver_remove_file(&megasas_pci_driver.driver, | |
8853 | &driver_attr_support_pci_lane_margining); | |
8854 | ||
8855 | pci_unregister_driver(&megasas_pci_driver); | |
8856 | megasas_exit_debugfs(); | |
8857 | unregister_chrdev(megasas_mgmt_majorno, "megaraid_sas_ioctl"); | |
8858 | } | |
8859 | ||
8860 | module_init(megasas_init); | |
8861 | module_exit(megasas_exit); |