Commit | Line | Data |
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2874c5fd | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
1da177e4 LT |
2 | /* |
3 | * | |
4 | * Linux MegaRAID device driver | |
5 | * | |
3492b328 | 6 | * Copyright (c) 2002 LSI Logic Corporation. |
1da177e4 | 7 | * |
1da177e4 LT |
8 | * Copyright (c) 2002 Red Hat, Inc. All rights reserved. |
9 | * - fixes | |
10 | * - speed-ups (list handling fixes, issued_list, optimizations.) | |
11 | * - lots of cleanups. | |
12 | * | |
13 | * Copyright (c) 2003 Christoph Hellwig <hch@lst.de> | |
14 | * - new-style, hotplug-aware pci probing and scsi registration | |
15 | * | |
3492b328 JS |
16 | * Version : v2.00.4 Mon Nov 14 14:02:43 EST 2005 - Seokmann Ju |
17 | * <Seokmann.Ju@lsil.com> | |
1da177e4 LT |
18 | * |
19 | * Description: Linux device driver for LSI Logic MegaRAID controller | |
20 | * | |
21 | * Supported controllers: MegaRAID 418, 428, 438, 466, 762, 467, 471, 490, 493 | |
22 | * 518, 520, 531, 532 | |
23 | * | |
24 | * This driver is supported by LSI Logic, with assistance from Red Hat, Dell, | |
25 | * and others. Please send updates to the mailing list | |
26 | * linux-scsi@vger.kernel.org . | |
1da177e4 LT |
27 | */ |
28 | ||
29 | #include <linux/mm.h> | |
30 | #include <linux/fs.h> | |
31 | #include <linux/blkdev.h> | |
7c0f6ba6 | 32 | #include <linux/uaccess.h> |
1da177e4 | 33 | #include <asm/io.h> |
8d115f84 | 34 | #include <linux/completion.h> |
1da177e4 LT |
35 | #include <linux/delay.h> |
36 | #include <linux/proc_fs.h> | |
c7f079ca | 37 | #include <linux/seq_file.h> |
1da177e4 LT |
38 | #include <linux/reboot.h> |
39 | #include <linux/module.h> | |
40 | #include <linux/list.h> | |
41 | #include <linux/interrupt.h> | |
42 | #include <linux/pci.h> | |
43 | #include <linux/init.h> | |
910638ae | 44 | #include <linux/dma-mapping.h> |
c45d15d2 | 45 | #include <linux/mutex.h> |
5a0e3ad6 | 46 | #include <linux/slab.h> |
1da177e4 | 47 | |
53555fb7 BVA |
48 | #include <scsi/scsi.h> |
49 | #include <scsi/scsi_cmnd.h> | |
50 | #include <scsi/scsi_device.h> | |
51 | #include <scsi/scsi_eh.h> | |
1da177e4 | 52 | #include <scsi/scsi_host.h> |
53555fb7 BVA |
53 | #include <scsi/scsi_tcq.h> |
54 | #include <scsi/scsicam.h> | |
1da177e4 LT |
55 | |
56 | #include "megaraid.h" | |
57 | ||
3492b328 | 58 | #define MEGARAID_MODULE_VERSION "2.00.4" |
1da177e4 | 59 | |
3492b328 JS |
60 | MODULE_AUTHOR ("sju@lsil.com"); |
61 | MODULE_DESCRIPTION ("LSI Logic MegaRAID legacy driver"); | |
1da177e4 LT |
62 | MODULE_LICENSE ("GPL"); |
63 | MODULE_VERSION(MEGARAID_MODULE_VERSION); | |
64 | ||
c45d15d2 | 65 | static DEFINE_MUTEX(megadev_mutex); |
1da177e4 LT |
66 | static unsigned int max_cmd_per_lun = DEF_CMD_PER_LUN; |
67 | module_param(max_cmd_per_lun, uint, 0); | |
68 | MODULE_PARM_DESC(max_cmd_per_lun, "Maximum number of commands which can be issued to a single LUN (default=DEF_CMD_PER_LUN=63)"); | |
69 | ||
70 | static unsigned short int max_sectors_per_io = MAX_SECTORS_PER_IO; | |
71 | module_param(max_sectors_per_io, ushort, 0); | |
72 | MODULE_PARM_DESC(max_sectors_per_io, "Maximum number of sectors per I/O request (default=MAX_SECTORS_PER_IO=128)"); | |
73 | ||
74 | ||
75 | static unsigned short int max_mbox_busy_wait = MBOX_BUSY_WAIT; | |
76 | module_param(max_mbox_busy_wait, ushort, 0); | |
77 | MODULE_PARM_DESC(max_mbox_busy_wait, "Maximum wait for mailbox in microseconds if busy (default=MBOX_BUSY_WAIT=10)"); | |
78 | ||
00769ec4 JG |
79 | #define RDINDOOR(adapter) readl((adapter)->mmio_base + 0x20) |
80 | #define RDOUTDOOR(adapter) readl((adapter)->mmio_base + 0x2C) | |
81 | #define WRINDOOR(adapter,value) writel(value, (adapter)->mmio_base + 0x20) | |
82 | #define WROUTDOOR(adapter,value) writel(value, (adapter)->mmio_base + 0x2C) | |
1da177e4 LT |
83 | |
84 | /* | |
85 | * Global variables | |
86 | */ | |
87 | ||
88 | static int hba_count; | |
89 | static adapter_t *hba_soft_state[MAX_CONTROLLERS]; | |
90 | static struct proc_dir_entry *mega_proc_dir_entry; | |
91 | ||
92 | /* For controller re-ordering */ | |
93 | static struct mega_hbas mega_hbas[MAX_CONTROLLERS]; | |
94 | ||
f4927c45 AB |
95 | static long |
96 | megadev_unlocked_ioctl(struct file *filep, unsigned int cmd, unsigned long arg); | |
97 | ||
1da177e4 LT |
98 | /* |
99 | * The File Operations structure for the serial/ioctl interface of the driver | |
100 | */ | |
00977a59 | 101 | static const struct file_operations megadev_fops = { |
1da177e4 | 102 | .owner = THIS_MODULE, |
f4927c45 | 103 | .unlocked_ioctl = megadev_unlocked_ioctl, |
1da177e4 | 104 | .open = megadev_open, |
6038f373 | 105 | .llseek = noop_llseek, |
1da177e4 LT |
106 | }; |
107 | ||
108 | /* | |
109 | * Array to structures for storing the information about the controllers. This | |
110 | * information is sent to the user level applications, when they do an ioctl | |
111 | * for this information. | |
112 | */ | |
113 | static struct mcontroller mcontroller[MAX_CONTROLLERS]; | |
114 | ||
115 | /* The current driver version */ | |
116 | static u32 driver_ver = 0x02000000; | |
117 | ||
118 | /* major number used by the device for character interface */ | |
119 | static int major; | |
120 | ||
121 | #define IS_RAID_CH(hba, ch) (((hba)->mega_ch_class >> (ch)) & 0x01) | |
122 | ||
123 | ||
124 | /* | |
125 | * Debug variable to print some diagnostic messages | |
126 | */ | |
127 | static int trace_level; | |
128 | ||
129 | /** | |
130 | * mega_setup_mailbox() | |
2b46e5c1 | 131 | * @adapter: pointer to our soft state |
1da177e4 LT |
132 | * |
133 | * Allocates a 8 byte aligned memory for the handshake mailbox. | |
134 | */ | |
135 | static int | |
136 | mega_setup_mailbox(adapter_t *adapter) | |
137 | { | |
138 | unsigned long align; | |
139 | ||
ec090ef8 SU |
140 | adapter->una_mbox64 = dma_alloc_coherent(&adapter->dev->dev, |
141 | sizeof(mbox64_t), | |
142 | &adapter->una_mbox64_dma, | |
143 | GFP_KERNEL); | |
1da177e4 LT |
144 | |
145 | if( !adapter->una_mbox64 ) return -1; | |
146 | ||
147 | adapter->mbox = &adapter->una_mbox64->mbox; | |
148 | ||
149 | adapter->mbox = (mbox_t *)((((unsigned long) adapter->mbox) + 15) & | |
150 | (~0UL ^ 0xFUL)); | |
151 | ||
152 | adapter->mbox64 = (mbox64_t *)(((unsigned long)adapter->mbox) - 8); | |
153 | ||
154 | align = ((void *)adapter->mbox) - ((void *)&adapter->una_mbox64->mbox); | |
155 | ||
156 | adapter->mbox_dma = adapter->una_mbox64_dma + 8 + align; | |
157 | ||
158 | /* | |
159 | * Register the mailbox if the controller is an io-mapped controller | |
160 | */ | |
161 | if( adapter->flag & BOARD_IOMAP ) { | |
162 | ||
7d1abbe8 | 163 | outb(adapter->mbox_dma & 0xFF, |
1da177e4 LT |
164 | adapter->host->io_port + MBOX_PORT0); |
165 | ||
7d1abbe8 | 166 | outb((adapter->mbox_dma >> 8) & 0xFF, |
1da177e4 LT |
167 | adapter->host->io_port + MBOX_PORT1); |
168 | ||
7d1abbe8 | 169 | outb((adapter->mbox_dma >> 16) & 0xFF, |
1da177e4 LT |
170 | adapter->host->io_port + MBOX_PORT2); |
171 | ||
7d1abbe8 | 172 | outb((adapter->mbox_dma >> 24) & 0xFF, |
1da177e4 LT |
173 | adapter->host->io_port + MBOX_PORT3); |
174 | ||
7d1abbe8 | 175 | outb(ENABLE_MBOX_BYTE, |
1da177e4 LT |
176 | adapter->host->io_port + ENABLE_MBOX_REGION); |
177 | ||
178 | irq_ack(adapter); | |
179 | ||
180 | irq_enable(adapter); | |
181 | } | |
182 | ||
183 | return 0; | |
184 | } | |
185 | ||
186 | ||
187 | /* | |
188 | * mega_query_adapter() | |
189 | * @adapter - pointer to our soft state | |
190 | * | |
191 | * Issue the adapter inquiry commands to the controller and find out | |
192 | * information and parameter about the devices attached | |
193 | */ | |
194 | static int | |
195 | mega_query_adapter(adapter_t *adapter) | |
196 | { | |
197 | dma_addr_t prod_info_dma_handle; | |
198 | mega_inquiry3 *inquiry3; | |
315d049a KC |
199 | struct mbox_out mbox; |
200 | u8 *raw_mbox = (u8 *)&mbox; | |
1da177e4 LT |
201 | int retval; |
202 | ||
203 | /* Initialize adapter inquiry mailbox */ | |
204 | ||
1da177e4 | 205 | memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE); |
315d049a | 206 | memset(&mbox, 0, sizeof(mbox)); |
1da177e4 LT |
207 | |
208 | /* | |
209 | * Try to issue Inquiry3 command | |
210 | * if not succeeded, then issue MEGA_MBOXCMD_ADAPTERINQ command and | |
211 | * update enquiry3 structure | |
212 | */ | |
315d049a | 213 | mbox.xferaddr = (u32)adapter->buf_dma_handle; |
1da177e4 LT |
214 | |
215 | inquiry3 = (mega_inquiry3 *)adapter->mega_buffer; | |
216 | ||
217 | raw_mbox[0] = FC_NEW_CONFIG; /* i.e. mbox->cmd=0xA1 */ | |
218 | raw_mbox[2] = NC_SUBOP_ENQUIRY3; /* i.e. 0x0F */ | |
219 | raw_mbox[3] = ENQ3_GET_SOLICITED_FULL; /* i.e. 0x02 */ | |
220 | ||
221 | /* Issue a blocking command to the card */ | |
222 | if ((retval = issue_scb_block(adapter, raw_mbox))) { | |
223 | /* the adapter does not support 40ld */ | |
224 | ||
225 | mraid_ext_inquiry *ext_inq; | |
226 | mraid_inquiry *inq; | |
227 | dma_addr_t dma_handle; | |
228 | ||
ec090ef8 SU |
229 | ext_inq = dma_alloc_coherent(&adapter->dev->dev, |
230 | sizeof(mraid_ext_inquiry), | |
231 | &dma_handle, GFP_KERNEL); | |
1da177e4 LT |
232 | |
233 | if( ext_inq == NULL ) return -1; | |
234 | ||
235 | inq = &ext_inq->raid_inq; | |
236 | ||
315d049a | 237 | mbox.xferaddr = (u32)dma_handle; |
1da177e4 LT |
238 | |
239 | /*issue old 0x04 command to adapter */ | |
315d049a | 240 | mbox.cmd = MEGA_MBOXCMD_ADPEXTINQ; |
1da177e4 LT |
241 | |
242 | issue_scb_block(adapter, raw_mbox); | |
243 | ||
244 | /* | |
245 | * update Enquiry3 and ProductInfo structures with | |
246 | * mraid_inquiry structure | |
247 | */ | |
248 | mega_8_to_40ld(inq, inquiry3, | |
249 | (mega_product_info *)&adapter->product_info); | |
250 | ||
ec090ef8 SU |
251 | dma_free_coherent(&adapter->dev->dev, |
252 | sizeof(mraid_ext_inquiry), ext_inq, | |
253 | dma_handle); | |
1da177e4 LT |
254 | |
255 | } else { /*adapter supports 40ld */ | |
256 | adapter->flag |= BOARD_40LD; | |
257 | ||
258 | /* | |
259 | * get product_info, which is static information and will be | |
260 | * unchanged | |
261 | */ | |
ec090ef8 SU |
262 | prod_info_dma_handle = dma_map_single(&adapter->dev->dev, |
263 | (void *)&adapter->product_info, | |
264 | sizeof(mega_product_info), | |
265 | DMA_FROM_DEVICE); | |
1da177e4 | 266 | |
315d049a | 267 | mbox.xferaddr = prod_info_dma_handle; |
1da177e4 LT |
268 | |
269 | raw_mbox[0] = FC_NEW_CONFIG; /* i.e. mbox->cmd=0xA1 */ | |
270 | raw_mbox[2] = NC_SUBOP_PRODUCT_INFO; /* i.e. 0x0E */ | |
271 | ||
272 | if ((retval = issue_scb_block(adapter, raw_mbox))) | |
3b8a1ba3 BH |
273 | dev_warn(&adapter->dev->dev, |
274 | "Product_info cmd failed with error: %d\n", | |
1da177e4 LT |
275 | retval); |
276 | ||
ec090ef8 SU |
277 | dma_unmap_single(&adapter->dev->dev, prod_info_dma_handle, |
278 | sizeof(mega_product_info), DMA_FROM_DEVICE); | |
1da177e4 LT |
279 | } |
280 | ||
281 | ||
282 | /* | |
283 | * kernel scans the channels from 0 to <= max_channel | |
284 | */ | |
285 | adapter->host->max_channel = | |
286 | adapter->product_info.nchannels + NVIRT_CHAN -1; | |
287 | ||
288 | adapter->host->max_id = 16; /* max targets per channel */ | |
289 | ||
25985edc | 290 | adapter->host->max_lun = 7; /* Up to 7 luns for non disk devices */ |
1da177e4 LT |
291 | |
292 | adapter->host->cmd_per_lun = max_cmd_per_lun; | |
293 | ||
294 | adapter->numldrv = inquiry3->num_ldrv; | |
295 | ||
296 | adapter->max_cmds = adapter->product_info.max_commands; | |
297 | ||
298 | if(adapter->max_cmds > MAX_COMMANDS) | |
299 | adapter->max_cmds = MAX_COMMANDS; | |
300 | ||
301 | adapter->host->can_queue = adapter->max_cmds - 1; | |
302 | ||
303 | /* | |
304 | * Get the maximum number of scatter-gather elements supported by this | |
305 | * firmware | |
306 | */ | |
307 | mega_get_max_sgl(adapter); | |
308 | ||
309 | adapter->host->sg_tablesize = adapter->sglen; | |
310 | ||
124dd90f | 311 | /* use HP firmware and bios version encoding |
312 | Note: fw_version[0|1] and bios_version[0|1] were originally shifted | |
313 | right 8 bits making them zero. This 0 value was hardcoded to fix | |
314 | sparse warnings. */ | |
54ebfd57 | 315 | if (adapter->product_info.subsysvid == PCI_VENDOR_ID_HP) { |
875826a7 AB |
316 | snprintf(adapter->fw_version, sizeof(adapter->fw_version), |
317 | "%c%d%d.%d%d", | |
1da177e4 | 318 | adapter->product_info.fw_version[2], |
124dd90f | 319 | 0, |
1da177e4 | 320 | adapter->product_info.fw_version[1] & 0x0f, |
124dd90f | 321 | 0, |
1da177e4 | 322 | adapter->product_info.fw_version[0] & 0x0f); |
875826a7 AB |
323 | snprintf(adapter->bios_version, sizeof(adapter->fw_version), |
324 | "%c%d%d.%d%d", | |
1da177e4 | 325 | adapter->product_info.bios_version[2], |
124dd90f | 326 | 0, |
1da177e4 | 327 | adapter->product_info.bios_version[1] & 0x0f, |
124dd90f | 328 | 0, |
1da177e4 LT |
329 | adapter->product_info.bios_version[0] & 0x0f); |
330 | } else { | |
331 | memcpy(adapter->fw_version, | |
332 | (char *)adapter->product_info.fw_version, 4); | |
333 | adapter->fw_version[4] = 0; | |
334 | ||
335 | memcpy(adapter->bios_version, | |
336 | (char *)adapter->product_info.bios_version, 4); | |
337 | ||
338 | adapter->bios_version[4] = 0; | |
339 | } | |
340 | ||
3b8a1ba3 | 341 | dev_notice(&adapter->dev->dev, "[%s:%s] detected %d logical drives\n", |
1da177e4 LT |
342 | adapter->fw_version, adapter->bios_version, adapter->numldrv); |
343 | ||
344 | /* | |
345 | * Do we support extended (>10 bytes) cdbs | |
346 | */ | |
347 | adapter->support_ext_cdb = mega_support_ext_cdb(adapter); | |
348 | if (adapter->support_ext_cdb) | |
3b8a1ba3 | 349 | dev_notice(&adapter->dev->dev, "supports extended CDBs\n"); |
1da177e4 LT |
350 | |
351 | ||
352 | return 0; | |
353 | } | |
354 | ||
355 | /** | |
356 | * mega_runpendq() | |
2b46e5c1 | 357 | * @adapter: pointer to our soft state |
1da177e4 LT |
358 | * |
359 | * Runs through the list of pending requests. | |
360 | */ | |
361 | static inline void | |
362 | mega_runpendq(adapter_t *adapter) | |
363 | { | |
364 | if(!list_empty(&adapter->pending_list)) | |
365 | __mega_runpendq(adapter); | |
366 | } | |
367 | ||
368 | /* | |
369 | * megaraid_queue() | |
370 | * @scmd - Issue this scsi command | |
371 | * @done - the callback hook into the scsi mid-layer | |
372 | * | |
373 | * The command queuing entry point for the mid-layer. | |
374 | */ | |
af049dfd | 375 | static int megaraid_queue_lck(struct scsi_cmnd *scmd) |
1da177e4 LT |
376 | { |
377 | adapter_t *adapter; | |
378 | scb_t *scb; | |
379 | int busy=0; | |
cb0258a2 | 380 | unsigned long flags; |
1da177e4 LT |
381 | |
382 | adapter = (adapter_t *)scmd->device->host->hostdata; | |
383 | ||
1da177e4 LT |
384 | /* |
385 | * Allocate and build a SCB request | |
386 | * busy flag will be set if mega_build_cmd() command could not | |
387 | * allocate scb. We will return non-zero status in that case. | |
388 | * NOTE: scb can be null even though certain commands completed | |
389 | * successfully, e.g., MODE_SENSE and TEST_UNIT_READY, we would | |
390 | * return 0 in that case. | |
391 | */ | |
392 | ||
cb0258a2 | 393 | spin_lock_irqsave(&adapter->lock, flags); |
1da177e4 | 394 | scb = mega_build_cmd(adapter, scmd, &busy); |
238f9b06 CH |
395 | if (!scb) |
396 | goto out; | |
1da177e4 | 397 | |
238f9b06 CH |
398 | scb->state |= SCB_PENDQ; |
399 | list_add_tail(&scb->list, &adapter->pending_list); | |
1da177e4 | 400 | |
238f9b06 CH |
401 | /* |
402 | * Check if the HBA is in quiescent state, e.g., during a | |
403 | * delete logical drive opertion. If it is, don't run | |
404 | * the pending_list. | |
405 | */ | |
406 | if (atomic_read(&adapter->quiescent) == 0) | |
407 | mega_runpendq(adapter); | |
1da177e4 | 408 | |
238f9b06 CH |
409 | busy = 0; |
410 | out: | |
411 | spin_unlock_irqrestore(&adapter->lock, flags); | |
1da177e4 LT |
412 | return busy; |
413 | } | |
414 | ||
f281233d JG |
415 | static DEF_SCSI_QCMD(megaraid_queue) |
416 | ||
1da177e4 LT |
417 | /** |
418 | * mega_allocate_scb() | |
2b46e5c1 DLM |
419 | * @adapter: pointer to our soft state |
420 | * @cmd: scsi command from the mid-layer | |
1da177e4 LT |
421 | * |
422 | * Allocate a SCB structure. This is the central structure for controller | |
423 | * commands. | |
424 | */ | |
425 | static inline scb_t * | |
91ebc1fa | 426 | mega_allocate_scb(adapter_t *adapter, struct scsi_cmnd *cmd) |
1da177e4 LT |
427 | { |
428 | struct list_head *head = &adapter->free_list; | |
429 | scb_t *scb; | |
430 | ||
431 | /* Unlink command from Free List */ | |
432 | if( !list_empty(head) ) { | |
433 | ||
434 | scb = list_entry(head->next, scb_t, list); | |
435 | ||
436 | list_del_init(head->next); | |
437 | ||
438 | scb->state = SCB_ACTIVE; | |
439 | scb->cmd = cmd; | |
440 | scb->dma_type = MEGA_DMA_TYPE_NONE; | |
441 | ||
442 | return scb; | |
443 | } | |
444 | ||
445 | return NULL; | |
446 | } | |
447 | ||
448 | /** | |
449 | * mega_get_ldrv_num() | |
2b46e5c1 DLM |
450 | * @adapter: pointer to our soft state |
451 | * @cmd: scsi mid layer command | |
452 | * @channel: channel on the controller | |
1da177e4 LT |
453 | * |
454 | * Calculate the logical drive number based on the information in scsi command | |
455 | * and the channel number. | |
456 | */ | |
457 | static inline int | |
91ebc1fa | 458 | mega_get_ldrv_num(adapter_t *adapter, struct scsi_cmnd *cmd, int channel) |
1da177e4 LT |
459 | { |
460 | int tgt; | |
461 | int ldrv_num; | |
462 | ||
463 | tgt = cmd->device->id; | |
464 | ||
465 | if ( tgt > adapter->this_id ) | |
466 | tgt--; /* we do not get inquires for initiator id */ | |
467 | ||
468 | ldrv_num = (channel * 15) + tgt; | |
469 | ||
470 | ||
471 | /* | |
472 | * If we have a logical drive with boot enabled, project it first | |
473 | */ | |
474 | if( adapter->boot_ldrv_enabled ) { | |
475 | if( ldrv_num == 0 ) { | |
476 | ldrv_num = adapter->boot_ldrv; | |
477 | } | |
478 | else { | |
479 | if( ldrv_num <= adapter->boot_ldrv ) { | |
480 | ldrv_num--; | |
481 | } | |
482 | } | |
483 | } | |
484 | ||
485 | /* | |
486 | * If "delete logical drive" feature is enabled on this controller. | |
487 | * Do only if at least one delete logical drive operation was done. | |
488 | * | |
489 | * Also, after logical drive deletion, instead of logical drive number, | |
490 | * the value returned should be 0x80+logical drive id. | |
491 | * | |
492 | * These is valid only for IO commands. | |
493 | */ | |
494 | ||
495 | if (adapter->support_random_del && adapter->read_ldidmap ) | |
496 | switch (cmd->cmnd[0]) { | |
df561f66 GS |
497 | case READ_6: |
498 | case WRITE_6: | |
499 | case READ_10: | |
1da177e4 LT |
500 | case WRITE_10: |
501 | ldrv_num += 0x80; | |
502 | } | |
503 | ||
504 | return ldrv_num; | |
505 | } | |
506 | ||
507 | /** | |
508 | * mega_build_cmd() | |
2b46e5c1 DLM |
509 | * @adapter: pointer to our soft state |
510 | * @cmd: Prepare using this scsi command | |
511 | * @busy: busy flag if no resources | |
1da177e4 LT |
512 | * |
513 | * Prepares a command and scatter gather list for the controller. This routine | |
514 | * also finds out if the commands is intended for a logical drive or a | |
515 | * physical device and prepares the controller command accordingly. | |
516 | * | |
517 | * We also re-order the logical drives and physical devices based on their | |
518 | * boot settings. | |
519 | */ | |
520 | static scb_t * | |
91ebc1fa | 521 | mega_build_cmd(adapter_t *adapter, struct scsi_cmnd *cmd, int *busy) |
1da177e4 | 522 | { |
1da177e4 LT |
523 | mega_passthru *pthru; |
524 | scb_t *scb; | |
525 | mbox_t *mbox; | |
9d5d93e3 | 526 | u32 seg; |
1da177e4 LT |
527 | char islogical; |
528 | int max_ldrv_num; | |
529 | int channel = 0; | |
530 | int target = 0; | |
531 | int ldrv_num = 0; /* logical drive number */ | |
532 | ||
1da177e4 LT |
533 | /* |
534 | * We know what channels our logical drives are on - mega_find_card() | |
535 | */ | |
536 | islogical = adapter->logdrv_chan[cmd->device->channel]; | |
537 | ||
538 | /* | |
539 | * The theory: If physical drive is chosen for boot, all the physical | |
540 | * devices are exported before the logical drives, otherwise physical | |
541 | * devices are pushed after logical drives, in which case - Kernel sees | |
542 | * the physical devices on virtual channel which is obviously converted | |
543 | * to actual channel on the HBA. | |
544 | */ | |
545 | if( adapter->boot_pdrv_enabled ) { | |
546 | if( islogical ) { | |
547 | /* logical channel */ | |
548 | channel = cmd->device->channel - | |
549 | adapter->product_info.nchannels; | |
550 | } | |
551 | else { | |
552 | /* this is physical channel */ | |
553 | channel = cmd->device->channel; | |
554 | target = cmd->device->id; | |
555 | ||
556 | /* | |
557 | * boot from a physical disk, that disk needs to be | |
558 | * exposed first IF both the channels are SCSI, then | |
559 | * booting from the second channel is not allowed. | |
560 | */ | |
561 | if( target == 0 ) { | |
562 | target = adapter->boot_pdrv_tgt; | |
563 | } | |
564 | else if( target == adapter->boot_pdrv_tgt ) { | |
565 | target = 0; | |
566 | } | |
567 | } | |
568 | } | |
569 | else { | |
570 | if( islogical ) { | |
571 | /* this is the logical channel */ | |
572 | channel = cmd->device->channel; | |
573 | } | |
574 | else { | |
575 | /* physical channel */ | |
576 | channel = cmd->device->channel - NVIRT_CHAN; | |
577 | target = cmd->device->id; | |
578 | } | |
579 | } | |
580 | ||
581 | ||
582 | if(islogical) { | |
583 | ||
584 | /* have just LUN 0 for each target on virtual channels */ | |
585 | if (cmd->device->lun) { | |
586 | cmd->result = (DID_BAD_TARGET << 16); | |
9e060365 | 587 | scsi_done(cmd); |
1da177e4 LT |
588 | return NULL; |
589 | } | |
590 | ||
591 | ldrv_num = mega_get_ldrv_num(adapter, cmd, channel); | |
592 | ||
593 | ||
594 | max_ldrv_num = (adapter->flag & BOARD_40LD) ? | |
595 | MAX_LOGICAL_DRIVES_40LD : MAX_LOGICAL_DRIVES_8LD; | |
596 | ||
597 | /* | |
598 | * max_ldrv_num increases by 0x80 if some logical drive was | |
599 | * deleted. | |
600 | */ | |
601 | if(adapter->read_ldidmap) | |
602 | max_ldrv_num += 0x80; | |
603 | ||
604 | if(ldrv_num > max_ldrv_num ) { | |
605 | cmd->result = (DID_BAD_TARGET << 16); | |
9e060365 | 606 | scsi_done(cmd); |
1da177e4 LT |
607 | return NULL; |
608 | } | |
609 | ||
610 | } | |
611 | else { | |
612 | if( cmd->device->lun > 7) { | |
613 | /* | |
614 | * Do not support lun >7 for physically accessed | |
615 | * devices | |
616 | */ | |
617 | cmd->result = (DID_BAD_TARGET << 16); | |
9e060365 | 618 | scsi_done(cmd); |
1da177e4 LT |
619 | return NULL; |
620 | } | |
621 | } | |
622 | ||
623 | /* | |
624 | * | |
625 | * Logical drive commands | |
626 | * | |
627 | */ | |
628 | if(islogical) { | |
629 | switch (cmd->cmnd[0]) { | |
630 | case TEST_UNIT_READY: | |
1da177e4 LT |
631 | #if MEGA_HAVE_CLUSTERING |
632 | /* | |
633 | * Do we support clustering and is the support enabled | |
634 | * If no, return success always | |
635 | */ | |
636 | if( !adapter->has_cluster ) { | |
637 | cmd->result = (DID_OK << 16); | |
9e060365 | 638 | scsi_done(cmd); |
1da177e4 LT |
639 | return NULL; |
640 | } | |
641 | ||
642 | if(!(scb = mega_allocate_scb(adapter, cmd))) { | |
643 | *busy = 1; | |
644 | return NULL; | |
645 | } | |
646 | ||
647 | scb->raw_mbox[0] = MEGA_CLUSTER_CMD; | |
648 | scb->raw_mbox[2] = MEGA_RESERVATION_STATUS; | |
649 | scb->raw_mbox[3] = ldrv_num; | |
650 | ||
ec090ef8 | 651 | scb->dma_direction = DMA_NONE; |
1da177e4 LT |
652 | |
653 | return scb; | |
654 | #else | |
655 | cmd->result = (DID_OK << 16); | |
9e060365 | 656 | scsi_done(cmd); |
1da177e4 LT |
657 | return NULL; |
658 | #endif | |
659 | ||
51c928c3 JB |
660 | case MODE_SENSE: { |
661 | char *buf; | |
3f6270ef | 662 | struct scatterlist *sg; |
51c928c3 | 663 | |
3f6270ef | 664 | sg = scsi_sglist(cmd); |
77dfce07 | 665 | buf = kmap_atomic(sg_page(sg)) + sg->offset; |
51c928c3 | 666 | |
f0353301 | 667 | memset(buf, 0, cmd->cmnd[4]); |
77dfce07 | 668 | kunmap_atomic(buf - sg->offset); |
51c928c3 | 669 | |
1da177e4 | 670 | cmd->result = (DID_OK << 16); |
9e060365 | 671 | scsi_done(cmd); |
1da177e4 | 672 | return NULL; |
51c928c3 | 673 | } |
1da177e4 LT |
674 | |
675 | case READ_CAPACITY: | |
676 | case INQUIRY: | |
677 | ||
678 | if(!(adapter->flag & (1L << cmd->device->channel))) { | |
679 | ||
3b8a1ba3 BH |
680 | dev_notice(&adapter->dev->dev, |
681 | "scsi%d: scanning scsi channel %d " | |
682 | "for logical drives\n", | |
1da177e4 LT |
683 | adapter->host->host_no, |
684 | cmd->device->channel); | |
1da177e4 LT |
685 | |
686 | adapter->flag |= (1L << cmd->device->channel); | |
687 | } | |
688 | ||
689 | /* Allocate a SCB and initialize passthru */ | |
690 | if(!(scb = mega_allocate_scb(adapter, cmd))) { | |
691 | *busy = 1; | |
692 | return NULL; | |
693 | } | |
694 | pthru = scb->pthru; | |
695 | ||
696 | mbox = (mbox_t *)scb->raw_mbox; | |
697 | memset(mbox, 0, sizeof(scb->raw_mbox)); | |
698 | memset(pthru, 0, sizeof(mega_passthru)); | |
699 | ||
700 | pthru->timeout = 0; | |
701 | pthru->ars = 1; | |
702 | pthru->reqsenselen = 14; | |
703 | pthru->islogical = 1; | |
704 | pthru->logdrv = ldrv_num; | |
705 | pthru->cdblen = cmd->cmd_len; | |
706 | memcpy(pthru->cdb, cmd->cmnd, cmd->cmd_len); | |
707 | ||
708 | if( adapter->has_64bit_addr ) { | |
709 | mbox->m_out.cmd = MEGA_MBOXCMD_PASSTHRU64; | |
710 | } | |
711 | else { | |
712 | mbox->m_out.cmd = MEGA_MBOXCMD_PASSTHRU; | |
713 | } | |
714 | ||
ec090ef8 | 715 | scb->dma_direction = DMA_FROM_DEVICE; |
1da177e4 LT |
716 | |
717 | pthru->numsgelements = mega_build_sglist(adapter, scb, | |
718 | &pthru->dataxferaddr, &pthru->dataxferlen); | |
719 | ||
720 | mbox->m_out.xferaddr = scb->pthru_dma_addr; | |
721 | ||
722 | return scb; | |
723 | ||
724 | case READ_6: | |
725 | case WRITE_6: | |
726 | case READ_10: | |
727 | case WRITE_10: | |
728 | case READ_12: | |
729 | case WRITE_12: | |
730 | ||
731 | /* Allocate a SCB and initialize mailbox */ | |
732 | if(!(scb = mega_allocate_scb(adapter, cmd))) { | |
733 | *busy = 1; | |
734 | return NULL; | |
735 | } | |
736 | mbox = (mbox_t *)scb->raw_mbox; | |
737 | ||
738 | memset(mbox, 0, sizeof(scb->raw_mbox)); | |
739 | mbox->m_out.logdrv = ldrv_num; | |
740 | ||
741 | /* | |
742 | * A little hack: 2nd bit is zero for all scsi read | |
743 | * commands and is set for all scsi write commands | |
744 | */ | |
745 | if( adapter->has_64bit_addr ) { | |
746 | mbox->m_out.cmd = (*cmd->cmnd & 0x02) ? | |
747 | MEGA_MBOXCMD_LWRITE64: | |
748 | MEGA_MBOXCMD_LREAD64 ; | |
749 | } | |
750 | else { | |
751 | mbox->m_out.cmd = (*cmd->cmnd & 0x02) ? | |
752 | MEGA_MBOXCMD_LWRITE: | |
753 | MEGA_MBOXCMD_LREAD ; | |
754 | } | |
755 | ||
756 | /* | |
757 | * 6-byte READ(0x08) or WRITE(0x0A) cdb | |
758 | */ | |
759 | if( cmd->cmd_len == 6 ) { | |
760 | mbox->m_out.numsectors = (u32) cmd->cmnd[4]; | |
761 | mbox->m_out.lba = | |
762 | ((u32)cmd->cmnd[1] << 16) | | |
763 | ((u32)cmd->cmnd[2] << 8) | | |
764 | (u32)cmd->cmnd[3]; | |
765 | ||
766 | mbox->m_out.lba &= 0x1FFFFF; | |
767 | ||
768 | #if MEGA_HAVE_STATS | |
769 | /* | |
770 | * Take modulo 0x80, since the logical drive | |
771 | * number increases by 0x80 when a logical | |
772 | * drive was deleted | |
773 | */ | |
774 | if (*cmd->cmnd == READ_6) { | |
775 | adapter->nreads[ldrv_num%0x80]++; | |
776 | adapter->nreadblocks[ldrv_num%0x80] += | |
777 | mbox->m_out.numsectors; | |
778 | } else { | |
779 | adapter->nwrites[ldrv_num%0x80]++; | |
780 | adapter->nwriteblocks[ldrv_num%0x80] += | |
781 | mbox->m_out.numsectors; | |
782 | } | |
783 | #endif | |
784 | } | |
785 | ||
786 | /* | |
787 | * 10-byte READ(0x28) or WRITE(0x2A) cdb | |
788 | */ | |
789 | if( cmd->cmd_len == 10 ) { | |
790 | mbox->m_out.numsectors = | |
791 | (u32)cmd->cmnd[8] | | |
792 | ((u32)cmd->cmnd[7] << 8); | |
793 | mbox->m_out.lba = | |
794 | ((u32)cmd->cmnd[2] << 24) | | |
795 | ((u32)cmd->cmnd[3] << 16) | | |
796 | ((u32)cmd->cmnd[4] << 8) | | |
797 | (u32)cmd->cmnd[5]; | |
798 | ||
799 | #if MEGA_HAVE_STATS | |
800 | if (*cmd->cmnd == READ_10) { | |
801 | adapter->nreads[ldrv_num%0x80]++; | |
802 | adapter->nreadblocks[ldrv_num%0x80] += | |
803 | mbox->m_out.numsectors; | |
804 | } else { | |
805 | adapter->nwrites[ldrv_num%0x80]++; | |
806 | adapter->nwriteblocks[ldrv_num%0x80] += | |
807 | mbox->m_out.numsectors; | |
808 | } | |
809 | #endif | |
810 | } | |
811 | ||
812 | /* | |
813 | * 12-byte READ(0xA8) or WRITE(0xAA) cdb | |
814 | */ | |
815 | if( cmd->cmd_len == 12 ) { | |
816 | mbox->m_out.lba = | |
817 | ((u32)cmd->cmnd[2] << 24) | | |
818 | ((u32)cmd->cmnd[3] << 16) | | |
819 | ((u32)cmd->cmnd[4] << 8) | | |
820 | (u32)cmd->cmnd[5]; | |
821 | ||
822 | mbox->m_out.numsectors = | |
823 | ((u32)cmd->cmnd[6] << 24) | | |
824 | ((u32)cmd->cmnd[7] << 16) | | |
825 | ((u32)cmd->cmnd[8] << 8) | | |
826 | (u32)cmd->cmnd[9]; | |
827 | ||
828 | #if MEGA_HAVE_STATS | |
829 | if (*cmd->cmnd == READ_12) { | |
830 | adapter->nreads[ldrv_num%0x80]++; | |
831 | adapter->nreadblocks[ldrv_num%0x80] += | |
832 | mbox->m_out.numsectors; | |
833 | } else { | |
834 | adapter->nwrites[ldrv_num%0x80]++; | |
835 | adapter->nwriteblocks[ldrv_num%0x80] += | |
836 | mbox->m_out.numsectors; | |
837 | } | |
838 | #endif | |
839 | } | |
840 | ||
841 | /* | |
842 | * If it is a read command | |
843 | */ | |
844 | if( (*cmd->cmnd & 0x0F) == 0x08 ) { | |
ec090ef8 | 845 | scb->dma_direction = DMA_FROM_DEVICE; |
1da177e4 LT |
846 | } |
847 | else { | |
ec090ef8 | 848 | scb->dma_direction = DMA_TO_DEVICE; |
1da177e4 LT |
849 | } |
850 | ||
851 | /* Calculate Scatter-Gather info */ | |
852 | mbox->m_out.numsgelements = mega_build_sglist(adapter, scb, | |
9d5d93e3 | 853 | (u32 *)&mbox->m_out.xferaddr, &seg); |
1da177e4 LT |
854 | |
855 | return scb; | |
856 | ||
857 | #if MEGA_HAVE_CLUSTERING | |
df561f66 | 858 | case RESERVE: |
1da177e4 LT |
859 | case RELEASE: |
860 | ||
861 | /* | |
862 | * Do we support clustering and is the support enabled | |
863 | */ | |
864 | if( ! adapter->has_cluster ) { | |
865 | ||
866 | cmd->result = (DID_BAD_TARGET << 16); | |
9e060365 | 867 | scsi_done(cmd); |
1da177e4 LT |
868 | return NULL; |
869 | } | |
870 | ||
871 | /* Allocate a SCB and initialize mailbox */ | |
872 | if(!(scb = mega_allocate_scb(adapter, cmd))) { | |
873 | *busy = 1; | |
874 | return NULL; | |
875 | } | |
876 | ||
877 | scb->raw_mbox[0] = MEGA_CLUSTER_CMD; | |
878 | scb->raw_mbox[2] = ( *cmd->cmnd == RESERVE ) ? | |
879 | MEGA_RESERVE_LD : MEGA_RELEASE_LD; | |
880 | ||
881 | scb->raw_mbox[3] = ldrv_num; | |
882 | ||
ec090ef8 | 883 | scb->dma_direction = DMA_NONE; |
1da177e4 LT |
884 | |
885 | return scb; | |
886 | #endif | |
887 | ||
888 | default: | |
889 | cmd->result = (DID_BAD_TARGET << 16); | |
9e060365 | 890 | scsi_done(cmd); |
1da177e4 LT |
891 | return NULL; |
892 | } | |
893 | } | |
894 | ||
895 | /* | |
896 | * Passthru drive commands | |
897 | */ | |
898 | else { | |
899 | /* Allocate a SCB and initialize passthru */ | |
900 | if(!(scb = mega_allocate_scb(adapter, cmd))) { | |
901 | *busy = 1; | |
902 | return NULL; | |
903 | } | |
904 | ||
905 | mbox = (mbox_t *)scb->raw_mbox; | |
906 | memset(mbox, 0, sizeof(scb->raw_mbox)); | |
907 | ||
908 | if( adapter->support_ext_cdb ) { | |
909 | ||
2a6576d2 | 910 | mega_prepare_extpassthru(adapter, scb, cmd, |
1da177e4 LT |
911 | channel, target); |
912 | ||
913 | mbox->m_out.cmd = MEGA_MBOXCMD_EXTPTHRU; | |
914 | ||
915 | mbox->m_out.xferaddr = scb->epthru_dma_addr; | |
916 | ||
917 | } | |
918 | else { | |
919 | ||
920 | pthru = mega_prepare_passthru(adapter, scb, cmd, | |
921 | channel, target); | |
922 | ||
923 | /* Initialize mailbox */ | |
924 | if( adapter->has_64bit_addr ) { | |
925 | mbox->m_out.cmd = MEGA_MBOXCMD_PASSTHRU64; | |
926 | } | |
927 | else { | |
928 | mbox->m_out.cmd = MEGA_MBOXCMD_PASSTHRU; | |
929 | } | |
930 | ||
931 | mbox->m_out.xferaddr = scb->pthru_dma_addr; | |
932 | ||
933 | } | |
934 | return scb; | |
935 | } | |
936 | return NULL; | |
937 | } | |
938 | ||
939 | ||
940 | /** | |
941 | * mega_prepare_passthru() | |
2b46e5c1 DLM |
942 | * @adapter: pointer to our soft state |
943 | * @scb: our scsi control block | |
944 | * @cmd: scsi command from the mid-layer | |
945 | * @channel: actual channel on the controller | |
946 | * @target: actual id on the controller. | |
1da177e4 LT |
947 | * |
948 | * prepare a command for the scsi physical devices. | |
949 | */ | |
950 | static mega_passthru * | |
91ebc1fa JT |
951 | mega_prepare_passthru(adapter_t *adapter, scb_t *scb, struct scsi_cmnd *cmd, |
952 | int channel, int target) | |
1da177e4 LT |
953 | { |
954 | mega_passthru *pthru; | |
955 | ||
956 | pthru = scb->pthru; | |
957 | memset(pthru, 0, sizeof (mega_passthru)); | |
958 | ||
959 | /* 0=6sec/1=60sec/2=10min/3=3hrs */ | |
960 | pthru->timeout = 2; | |
961 | ||
962 | pthru->ars = 1; | |
963 | pthru->reqsenselen = 14; | |
964 | pthru->islogical = 0; | |
965 | ||
966 | pthru->channel = (adapter->flag & BOARD_40LD) ? 0 : channel; | |
967 | ||
968 | pthru->target = (adapter->flag & BOARD_40LD) ? | |
969 | (channel << 4) | target : target; | |
970 | ||
971 | pthru->cdblen = cmd->cmd_len; | |
972 | pthru->logdrv = cmd->device->lun; | |
973 | ||
974 | memcpy(pthru->cdb, cmd->cmnd, cmd->cmd_len); | |
975 | ||
976 | /* Not sure about the direction */ | |
ec090ef8 | 977 | scb->dma_direction = DMA_BIDIRECTIONAL; |
1da177e4 LT |
978 | |
979 | /* Special Code for Handling READ_CAPA/ INQ using bounce buffers */ | |
980 | switch (cmd->cmnd[0]) { | |
981 | case INQUIRY: | |
982 | case READ_CAPACITY: | |
983 | if(!(adapter->flag & (1L << cmd->device->channel))) { | |
984 | ||
3b8a1ba3 BH |
985 | dev_notice(&adapter->dev->dev, |
986 | "scsi%d: scanning scsi channel %d [P%d] " | |
987 | "for physical devices\n", | |
1da177e4 LT |
988 | adapter->host->host_no, |
989 | cmd->device->channel, channel); | |
1da177e4 LT |
990 | |
991 | adapter->flag |= (1L << cmd->device->channel); | |
992 | } | |
df561f66 | 993 | fallthrough; |
1da177e4 LT |
994 | default: |
995 | pthru->numsgelements = mega_build_sglist(adapter, scb, | |
996 | &pthru->dataxferaddr, &pthru->dataxferlen); | |
997 | break; | |
998 | } | |
999 | return pthru; | |
1000 | } | |
1001 | ||
1002 | ||
1003 | /** | |
1004 | * mega_prepare_extpassthru() | |
2b46e5c1 DLM |
1005 | * @adapter: pointer to our soft state |
1006 | * @scb: our scsi control block | |
1007 | * @cmd: scsi command from the mid-layer | |
1008 | * @channel: actual channel on the controller | |
1009 | * @target: actual id on the controller. | |
1da177e4 LT |
1010 | * |
1011 | * prepare a command for the scsi physical devices. This rountine prepares | |
1012 | * commands for devices which can take extended CDBs (>10 bytes) | |
1013 | */ | |
1014 | static mega_ext_passthru * | |
91ebc1fa JT |
1015 | mega_prepare_extpassthru(adapter_t *adapter, scb_t *scb, |
1016 | struct scsi_cmnd *cmd, | |
1017 | int channel, int target) | |
1da177e4 LT |
1018 | { |
1019 | mega_ext_passthru *epthru; | |
1020 | ||
1021 | epthru = scb->epthru; | |
1022 | memset(epthru, 0, sizeof(mega_ext_passthru)); | |
1023 | ||
1024 | /* 0=6sec/1=60sec/2=10min/3=3hrs */ | |
1025 | epthru->timeout = 2; | |
1026 | ||
1027 | epthru->ars = 1; | |
1028 | epthru->reqsenselen = 14; | |
1029 | epthru->islogical = 0; | |
1030 | ||
1031 | epthru->channel = (adapter->flag & BOARD_40LD) ? 0 : channel; | |
1032 | epthru->target = (adapter->flag & BOARD_40LD) ? | |
1033 | (channel << 4) | target : target; | |
1034 | ||
1035 | epthru->cdblen = cmd->cmd_len; | |
1036 | epthru->logdrv = cmd->device->lun; | |
1037 | ||
1038 | memcpy(epthru->cdb, cmd->cmnd, cmd->cmd_len); | |
1039 | ||
1040 | /* Not sure about the direction */ | |
ec090ef8 | 1041 | scb->dma_direction = DMA_BIDIRECTIONAL; |
1da177e4 LT |
1042 | |
1043 | switch(cmd->cmnd[0]) { | |
1044 | case INQUIRY: | |
1045 | case READ_CAPACITY: | |
1046 | if(!(adapter->flag & (1L << cmd->device->channel))) { | |
1047 | ||
3b8a1ba3 BH |
1048 | dev_notice(&adapter->dev->dev, |
1049 | "scsi%d: scanning scsi channel %d [P%d] " | |
1050 | "for physical devices\n", | |
1da177e4 LT |
1051 | adapter->host->host_no, |
1052 | cmd->device->channel, channel); | |
1da177e4 LT |
1053 | |
1054 | adapter->flag |= (1L << cmd->device->channel); | |
1055 | } | |
df561f66 | 1056 | fallthrough; |
1da177e4 LT |
1057 | default: |
1058 | epthru->numsgelements = mega_build_sglist(adapter, scb, | |
1059 | &epthru->dataxferaddr, &epthru->dataxferlen); | |
1060 | break; | |
1061 | } | |
1062 | ||
1063 | return epthru; | |
1064 | } | |
1065 | ||
1066 | static void | |
1067 | __mega_runpendq(adapter_t *adapter) | |
1068 | { | |
1069 | scb_t *scb; | |
1070 | struct list_head *pos, *next; | |
1071 | ||
1072 | /* Issue any pending commands to the card */ | |
1073 | list_for_each_safe(pos, next, &adapter->pending_list) { | |
1074 | ||
1075 | scb = list_entry(pos, scb_t, list); | |
1076 | ||
1077 | if( !(scb->state & SCB_ISSUED) ) { | |
1078 | ||
1079 | if( issue_scb(adapter, scb) != 0 ) | |
1080 | return; | |
1081 | } | |
1082 | } | |
1083 | ||
1084 | return; | |
1085 | } | |
1086 | ||
1087 | ||
1088 | /** | |
1089 | * issue_scb() | |
2b46e5c1 DLM |
1090 | * @adapter: pointer to our soft state |
1091 | * @scb: scsi control block | |
1da177e4 LT |
1092 | * |
1093 | * Post a command to the card if the mailbox is available, otherwise return | |
1094 | * busy. We also take the scb from the pending list if the mailbox is | |
1095 | * available. | |
1096 | */ | |
1097 | static int | |
1098 | issue_scb(adapter_t *adapter, scb_t *scb) | |
1099 | { | |
1100 | volatile mbox64_t *mbox64 = adapter->mbox64; | |
1101 | volatile mbox_t *mbox = adapter->mbox; | |
1102 | unsigned int i = 0; | |
1103 | ||
1104 | if(unlikely(mbox->m_in.busy)) { | |
1105 | do { | |
1106 | udelay(1); | |
1107 | i++; | |
1108 | } while( mbox->m_in.busy && (i < max_mbox_busy_wait) ); | |
1109 | ||
1110 | if(mbox->m_in.busy) return -1; | |
1111 | } | |
1112 | ||
1113 | /* Copy mailbox data into host structure */ | |
1114 | memcpy((char *)&mbox->m_out, (char *)scb->raw_mbox, | |
1115 | sizeof(struct mbox_out)); | |
1116 | ||
1117 | mbox->m_out.cmdid = scb->idx; /* Set cmdid */ | |
1118 | mbox->m_in.busy = 1; /* Set busy */ | |
1119 | ||
1120 | ||
1121 | /* | |
1122 | * Increment the pending queue counter | |
1123 | */ | |
1124 | atomic_inc(&adapter->pend_cmds); | |
1125 | ||
1126 | switch (mbox->m_out.cmd) { | |
1127 | case MEGA_MBOXCMD_LREAD64: | |
1128 | case MEGA_MBOXCMD_LWRITE64: | |
1129 | case MEGA_MBOXCMD_PASSTHRU64: | |
1130 | case MEGA_MBOXCMD_EXTPTHRU: | |
1131 | mbox64->xfer_segment_lo = mbox->m_out.xferaddr; | |
1132 | mbox64->xfer_segment_hi = 0; | |
1133 | mbox->m_out.xferaddr = 0xFFFFFFFF; | |
1134 | break; | |
1135 | default: | |
1136 | mbox64->xfer_segment_lo = 0; | |
1137 | mbox64->xfer_segment_hi = 0; | |
1138 | } | |
1139 | ||
1140 | /* | |
1141 | * post the command | |
1142 | */ | |
1143 | scb->state |= SCB_ISSUED; | |
1144 | ||
1145 | if( likely(adapter->flag & BOARD_MEMMAP) ) { | |
1146 | mbox->m_in.poll = 0; | |
1147 | mbox->m_in.ack = 0; | |
1148 | WRINDOOR(adapter, adapter->mbox_dma | 0x1); | |
1149 | } | |
1150 | else { | |
1151 | irq_enable(adapter); | |
1152 | issue_command(adapter); | |
1153 | } | |
1154 | ||
1155 | return 0; | |
1156 | } | |
1157 | ||
1158 | /* | |
1159 | * Wait until the controller's mailbox is available | |
1160 | */ | |
1161 | static inline int | |
1162 | mega_busywait_mbox (adapter_t *adapter) | |
1163 | { | |
1164 | if (adapter->mbox->m_in.busy) | |
1165 | return __mega_busywait_mbox(adapter); | |
1166 | return 0; | |
1167 | } | |
1168 | ||
1169 | /** | |
1170 | * issue_scb_block() | |
2b46e5c1 DLM |
1171 | * @adapter: pointer to our soft state |
1172 | * @raw_mbox: the mailbox | |
1da177e4 LT |
1173 | * |
1174 | * Issue a scb in synchronous and non-interrupt mode | |
1175 | */ | |
1176 | static int | |
1177 | issue_scb_block(adapter_t *adapter, u_char *raw_mbox) | |
1178 | { | |
1179 | volatile mbox64_t *mbox64 = adapter->mbox64; | |
1180 | volatile mbox_t *mbox = adapter->mbox; | |
1181 | u8 byte; | |
1182 | ||
1183 | /* Wait until mailbox is free */ | |
1184 | if(mega_busywait_mbox (adapter)) | |
1185 | goto bug_blocked_mailbox; | |
1186 | ||
1187 | /* Copy mailbox data into host structure */ | |
1188 | memcpy((char *) mbox, raw_mbox, sizeof(struct mbox_out)); | |
1189 | mbox->m_out.cmdid = 0xFE; | |
1190 | mbox->m_in.busy = 1; | |
1191 | ||
1192 | switch (raw_mbox[0]) { | |
1193 | case MEGA_MBOXCMD_LREAD64: | |
1194 | case MEGA_MBOXCMD_LWRITE64: | |
1195 | case MEGA_MBOXCMD_PASSTHRU64: | |
1196 | case MEGA_MBOXCMD_EXTPTHRU: | |
1197 | mbox64->xfer_segment_lo = mbox->m_out.xferaddr; | |
1198 | mbox64->xfer_segment_hi = 0; | |
1199 | mbox->m_out.xferaddr = 0xFFFFFFFF; | |
1200 | break; | |
1201 | default: | |
1202 | mbox64->xfer_segment_lo = 0; | |
1203 | mbox64->xfer_segment_hi = 0; | |
1204 | } | |
1205 | ||
1206 | if( likely(adapter->flag & BOARD_MEMMAP) ) { | |
1207 | mbox->m_in.poll = 0; | |
1208 | mbox->m_in.ack = 0; | |
1209 | mbox->m_in.numstatus = 0xFF; | |
1210 | mbox->m_in.status = 0xFF; | |
1211 | WRINDOOR(adapter, adapter->mbox_dma | 0x1); | |
1212 | ||
1213 | while((volatile u8)mbox->m_in.numstatus == 0xFF) | |
1214 | cpu_relax(); | |
1215 | ||
1216 | mbox->m_in.numstatus = 0xFF; | |
1217 | ||
1218 | while( (volatile u8)mbox->m_in.poll != 0x77 ) | |
1219 | cpu_relax(); | |
1220 | ||
1221 | mbox->m_in.poll = 0; | |
1222 | mbox->m_in.ack = 0x77; | |
1223 | ||
1224 | WRINDOOR(adapter, adapter->mbox_dma | 0x2); | |
1225 | ||
1226 | while(RDINDOOR(adapter) & 0x2) | |
1227 | cpu_relax(); | |
1228 | } | |
1229 | else { | |
1230 | irq_disable(adapter); | |
1231 | issue_command(adapter); | |
1232 | ||
1233 | while (!((byte = irq_state(adapter)) & INTR_VALID)) | |
1234 | cpu_relax(); | |
1235 | ||
1236 | set_irq_state(adapter, byte); | |
1237 | irq_enable(adapter); | |
1238 | irq_ack(adapter); | |
1239 | } | |
1240 | ||
1241 | return mbox->m_in.status; | |
1242 | ||
1243 | bug_blocked_mailbox: | |
3b8a1ba3 | 1244 | dev_warn(&adapter->dev->dev, "Blocked mailbox......!!\n"); |
1da177e4 LT |
1245 | udelay (1000); |
1246 | return -1; | |
1247 | } | |
1248 | ||
1249 | ||
1250 | /** | |
1251 | * megaraid_isr_iomapped() | |
2b46e5c1 DLM |
1252 | * @irq: irq |
1253 | * @devp: pointer to our soft state | |
1da177e4 LT |
1254 | * |
1255 | * Interrupt service routine for io-mapped controllers. | |
1256 | * Find out if our device is interrupting. If yes, acknowledge the interrupt | |
1257 | * and service the completed commands. | |
1258 | */ | |
1259 | static irqreturn_t | |
7d12e780 | 1260 | megaraid_isr_iomapped(int irq, void *devp) |
1da177e4 LT |
1261 | { |
1262 | adapter_t *adapter = devp; | |
1263 | unsigned long flags; | |
1264 | u8 status; | |
1265 | u8 nstatus; | |
1266 | u8 completed[MAX_FIRMWARE_STATUS]; | |
1267 | u8 byte; | |
1268 | int handled = 0; | |
1269 | ||
1270 | ||
1271 | /* | |
1272 | * loop till F/W has more commands for us to complete. | |
1273 | */ | |
1274 | spin_lock_irqsave(&adapter->lock, flags); | |
1275 | ||
1276 | do { | |
1277 | /* Check if a valid interrupt is pending */ | |
1278 | byte = irq_state(adapter); | |
1279 | if( (byte & VALID_INTR_BYTE) == 0 ) { | |
1280 | /* | |
1281 | * No more pending commands | |
1282 | */ | |
1283 | goto out_unlock; | |
1284 | } | |
1285 | set_irq_state(adapter, byte); | |
1286 | ||
1287 | while((nstatus = (volatile u8)adapter->mbox->m_in.numstatus) | |
1288 | == 0xFF) | |
1289 | cpu_relax(); | |
1290 | adapter->mbox->m_in.numstatus = 0xFF; | |
1291 | ||
1292 | status = adapter->mbox->m_in.status; | |
1293 | ||
1294 | /* | |
1295 | * decrement the pending queue counter | |
1296 | */ | |
1297 | atomic_sub(nstatus, &adapter->pend_cmds); | |
1298 | ||
1299 | memcpy(completed, (void *)adapter->mbox->m_in.completed, | |
1300 | nstatus); | |
1301 | ||
1302 | /* Acknowledge interrupt */ | |
1303 | irq_ack(adapter); | |
1304 | ||
1305 | mega_cmd_done(adapter, completed, nstatus, status); | |
1306 | ||
1307 | mega_rundoneq(adapter); | |
1308 | ||
1309 | handled = 1; | |
1310 | ||
1311 | /* Loop through any pending requests */ | |
1312 | if(atomic_read(&adapter->quiescent) == 0) { | |
1313 | mega_runpendq(adapter); | |
1314 | } | |
1315 | ||
1316 | } while(1); | |
1317 | ||
1318 | out_unlock: | |
1319 | ||
1320 | spin_unlock_irqrestore(&adapter->lock, flags); | |
1321 | ||
1322 | return IRQ_RETVAL(handled); | |
1323 | } | |
1324 | ||
1325 | ||
1326 | /** | |
1327 | * megaraid_isr_memmapped() | |
2b46e5c1 DLM |
1328 | * @irq: irq |
1329 | * @devp: pointer to our soft state | |
1da177e4 LT |
1330 | * |
1331 | * Interrupt service routine for memory-mapped controllers. | |
1332 | * Find out if our device is interrupting. If yes, acknowledge the interrupt | |
1333 | * and service the completed commands. | |
1334 | */ | |
1335 | static irqreturn_t | |
7d12e780 | 1336 | megaraid_isr_memmapped(int irq, void *devp) |
1da177e4 LT |
1337 | { |
1338 | adapter_t *adapter = devp; | |
1339 | unsigned long flags; | |
1340 | u8 status; | |
1341 | u32 dword = 0; | |
1342 | u8 nstatus; | |
1343 | u8 completed[MAX_FIRMWARE_STATUS]; | |
1344 | int handled = 0; | |
1345 | ||
1346 | ||
1347 | /* | |
1348 | * loop till F/W has more commands for us to complete. | |
1349 | */ | |
1350 | spin_lock_irqsave(&adapter->lock, flags); | |
1351 | ||
1352 | do { | |
1353 | /* Check if a valid interrupt is pending */ | |
1354 | dword = RDOUTDOOR(adapter); | |
1355 | if(dword != 0x10001234) { | |
1356 | /* | |
1357 | * No more pending commands | |
1358 | */ | |
1359 | goto out_unlock; | |
1360 | } | |
1361 | WROUTDOOR(adapter, 0x10001234); | |
1362 | ||
1363 | while((nstatus = (volatile u8)adapter->mbox->m_in.numstatus) | |
1364 | == 0xFF) { | |
1365 | cpu_relax(); | |
1366 | } | |
1367 | adapter->mbox->m_in.numstatus = 0xFF; | |
1368 | ||
1369 | status = adapter->mbox->m_in.status; | |
1370 | ||
1371 | /* | |
1372 | * decrement the pending queue counter | |
1373 | */ | |
1374 | atomic_sub(nstatus, &adapter->pend_cmds); | |
1375 | ||
1376 | memcpy(completed, (void *)adapter->mbox->m_in.completed, | |
1377 | nstatus); | |
1378 | ||
1379 | /* Acknowledge interrupt */ | |
1380 | WRINDOOR(adapter, 0x2); | |
1381 | ||
1382 | handled = 1; | |
1383 | ||
00769ec4 JG |
1384 | while( RDINDOOR(adapter) & 0x02 ) |
1385 | cpu_relax(); | |
1da177e4 LT |
1386 | |
1387 | mega_cmd_done(adapter, completed, nstatus, status); | |
1388 | ||
1389 | mega_rundoneq(adapter); | |
1390 | ||
1391 | /* Loop through any pending requests */ | |
1392 | if(atomic_read(&adapter->quiescent) == 0) { | |
1393 | mega_runpendq(adapter); | |
1394 | } | |
1395 | ||
1396 | } while(1); | |
1397 | ||
1398 | out_unlock: | |
1399 | ||
1400 | spin_unlock_irqrestore(&adapter->lock, flags); | |
1401 | ||
1402 | return IRQ_RETVAL(handled); | |
1403 | } | |
1404 | /** | |
1405 | * mega_cmd_done() | |
2b46e5c1 DLM |
1406 | * @adapter: pointer to our soft state |
1407 | * @completed: array of ids of completed commands | |
1408 | * @nstatus: number of completed commands | |
1409 | * @status: status of the last command completed | |
1da177e4 | 1410 | * |
8e572bab | 1411 | * Complete the commands and call the scsi mid-layer callback hooks. |
1da177e4 LT |
1412 | */ |
1413 | static void | |
1414 | mega_cmd_done(adapter_t *adapter, u8 completed[], int nstatus, int status) | |
1415 | { | |
1416 | mega_ext_passthru *epthru = NULL; | |
1417 | struct scatterlist *sgl; | |
91ebc1fa | 1418 | struct scsi_cmnd *cmd = NULL; |
1da177e4 LT |
1419 | mega_passthru *pthru = NULL; |
1420 | mbox_t *mbox = NULL; | |
1421 | u8 c; | |
1422 | scb_t *scb; | |
1423 | int islogical; | |
1424 | int cmdid; | |
1425 | int i; | |
1426 | ||
1427 | /* | |
1428 | * for all the commands completed, call the mid-layer callback routine | |
1429 | * and free the scb. | |
1430 | */ | |
1431 | for( i = 0; i < nstatus; i++ ) { | |
1432 | ||
1433 | cmdid = completed[i]; | |
1434 | ||
0f2bb84d CH |
1435 | /* |
1436 | * Only free SCBs for the commands coming down from the | |
1437 | * mid-layer, not for which were issued internally | |
1438 | * | |
1439 | * For internal command, restore the status returned by the | |
1440 | * firmware so that user can interpret it. | |
1441 | */ | |
1442 | if (cmdid == CMDID_INT_CMDS) { | |
1da177e4 | 1443 | scb = &adapter->int_scb; |
1da177e4 | 1444 | |
0f2bb84d CH |
1445 | list_del_init(&scb->list); |
1446 | scb->state = SCB_FREE; | |
1da177e4 | 1447 | |
0f2bb84d CH |
1448 | adapter->int_status = status; |
1449 | complete(&adapter->int_waitq); | |
1450 | } else { | |
1da177e4 LT |
1451 | scb = &adapter->scb_list[cmdid]; |
1452 | ||
1453 | /* | |
1454 | * Make sure f/w has completed a valid command | |
1455 | */ | |
1456 | if( !(scb->state & SCB_ISSUED) || scb->cmd == NULL ) { | |
3b8a1ba3 BH |
1457 | dev_crit(&adapter->dev->dev, "invalid command " |
1458 | "Id %d, scb->state:%x, scsi cmd:%p\n", | |
1da177e4 LT |
1459 | cmdid, scb->state, scb->cmd); |
1460 | ||
1461 | continue; | |
1462 | } | |
1463 | ||
1464 | /* | |
1465 | * Was a abort issued for this command | |
1466 | */ | |
1467 | if( scb->state & SCB_ABORT ) { | |
1468 | ||
3b8a1ba3 BH |
1469 | dev_warn(&adapter->dev->dev, |
1470 | "aborted cmd [%x] complete\n", | |
5cd049a5 | 1471 | scb->idx); |
1da177e4 LT |
1472 | |
1473 | scb->cmd->result = (DID_ABORT << 16); | |
1474 | ||
1475 | list_add_tail(SCSI_LIST(scb->cmd), | |
1476 | &adapter->completed_list); | |
1477 | ||
1478 | mega_free_scb(adapter, scb); | |
1479 | ||
1480 | continue; | |
1481 | } | |
1482 | ||
1483 | /* | |
1484 | * Was a reset issued for this command | |
1485 | */ | |
1486 | if( scb->state & SCB_RESET ) { | |
1487 | ||
3b8a1ba3 BH |
1488 | dev_warn(&adapter->dev->dev, |
1489 | "reset cmd [%x] complete\n", | |
5cd049a5 | 1490 | scb->idx); |
1da177e4 LT |
1491 | |
1492 | scb->cmd->result = (DID_RESET << 16); | |
1493 | ||
1494 | list_add_tail(SCSI_LIST(scb->cmd), | |
1495 | &adapter->completed_list); | |
1496 | ||
1497 | mega_free_scb (adapter, scb); | |
1498 | ||
1499 | continue; | |
1500 | } | |
1501 | ||
1502 | cmd = scb->cmd; | |
1503 | pthru = scb->pthru; | |
1504 | epthru = scb->epthru; | |
1505 | mbox = (mbox_t *)scb->raw_mbox; | |
1506 | ||
1507 | #if MEGA_HAVE_STATS | |
1508 | { | |
1509 | ||
1510 | int logdrv = mbox->m_out.logdrv; | |
1511 | ||
1512 | islogical = adapter->logdrv_chan[cmd->channel]; | |
1513 | /* | |
1514 | * Maintain an error counter for the logical drive. | |
1515 | * Some application like SNMP agent need such | |
1516 | * statistics | |
1517 | */ | |
1518 | if( status && islogical && (cmd->cmnd[0] == READ_6 || | |
1519 | cmd->cmnd[0] == READ_10 || | |
1520 | cmd->cmnd[0] == READ_12)) { | |
1521 | /* | |
1522 | * Logical drive number increases by 0x80 when | |
1523 | * a logical drive is deleted | |
1524 | */ | |
1525 | adapter->rd_errors[logdrv%0x80]++; | |
1526 | } | |
1527 | ||
1528 | if( status && islogical && (cmd->cmnd[0] == WRITE_6 || | |
1529 | cmd->cmnd[0] == WRITE_10 || | |
1530 | cmd->cmnd[0] == WRITE_12)) { | |
1531 | /* | |
1532 | * Logical drive number increases by 0x80 when | |
1533 | * a logical drive is deleted | |
1534 | */ | |
1535 | adapter->wr_errors[logdrv%0x80]++; | |
1536 | } | |
1537 | ||
1538 | } | |
1539 | #endif | |
1540 | } | |
1541 | ||
1542 | /* | |
1543 | * Do not return the presence of hard disk on the channel so, | |
1544 | * inquiry sent, and returned data==hard disk or removable | |
1545 | * hard disk and not logical, request should return failure! - | |
1546 | * PJ | |
1547 | */ | |
1548 | islogical = adapter->logdrv_chan[cmd->device->channel]; | |
1549 | if( cmd->cmnd[0] == INQUIRY && !islogical ) { | |
1550 | ||
3f6270ef | 1551 | sgl = scsi_sglist(cmd); |
45711f1a JA |
1552 | if( sg_page(sgl) ) { |
1553 | c = *(unsigned char *) sg_virt(&sgl[0]); | |
3f6270ef | 1554 | } else { |
3b8a1ba3 | 1555 | dev_warn(&adapter->dev->dev, "invalid sg\n"); |
3f6270ef | 1556 | c = 0; |
1da177e4 LT |
1557 | } |
1558 | ||
1559 | if(IS_RAID_CH(adapter, cmd->device->channel) && | |
1560 | ((c & 0x1F ) == TYPE_DISK)) { | |
1561 | status = 0xF0; | |
1562 | } | |
1563 | } | |
1564 | ||
1565 | /* clear result; otherwise, success returns corrupt value */ | |
1566 | cmd->result = 0; | |
1567 | ||
1568 | /* Convert MegaRAID status to Linux error code */ | |
1569 | switch (status) { | |
1570 | case 0x00: /* SUCCESS , i.e. SCSI_STATUS_GOOD */ | |
1571 | cmd->result |= (DID_OK << 16); | |
1572 | break; | |
1573 | ||
1574 | case 0x02: /* ERROR_ABORTED, i.e. | |
1575 | SCSI_STATUS_CHECK_CONDITION */ | |
1576 | ||
1577 | /* set sense_buffer and result fields */ | |
1578 | if( mbox->m_out.cmd == MEGA_MBOXCMD_PASSTHRU || | |
1579 | mbox->m_out.cmd == MEGA_MBOXCMD_PASSTHRU64 ) { | |
1580 | ||
1581 | memcpy(cmd->sense_buffer, pthru->reqsensearea, | |
1582 | 14); | |
1583 | ||
464a00c9 | 1584 | cmd->result = SAM_STAT_CHECK_CONDITION; |
1da177e4 LT |
1585 | } |
1586 | else { | |
1587 | if (mbox->m_out.cmd == MEGA_MBOXCMD_EXTPTHRU) { | |
1588 | ||
1589 | memcpy(cmd->sense_buffer, | |
1590 | epthru->reqsensearea, 14); | |
1591 | ||
464a00c9 | 1592 | cmd->result = SAM_STAT_CHECK_CONDITION; |
f2b1e9c6 HR |
1593 | } else |
1594 | scsi_build_sense(cmd, 0, | |
1595 | ABORTED_COMMAND, 0, 0); | |
1da177e4 LT |
1596 | } |
1597 | break; | |
1598 | ||
1599 | case 0x08: /* ERR_DEST_DRIVE_FAILED, i.e. | |
1600 | SCSI_STATUS_BUSY */ | |
1601 | cmd->result |= (DID_BUS_BUSY << 16) | status; | |
1602 | break; | |
1603 | ||
1604 | default: | |
1605 | #if MEGA_HAVE_CLUSTERING | |
1606 | /* | |
1607 | * If TEST_UNIT_READY fails, we know | |
1608 | * MEGA_RESERVATION_STATUS failed | |
1609 | */ | |
1610 | if( cmd->cmnd[0] == TEST_UNIT_READY ) { | |
1611 | cmd->result |= (DID_ERROR << 16) | | |
3d45cefc | 1612 | SAM_STAT_RESERVATION_CONFLICT; |
1da177e4 LT |
1613 | } |
1614 | else | |
1615 | /* | |
1616 | * Error code returned is 1 if Reserve or Release | |
1617 | * failed or the input parameter is invalid | |
1618 | */ | |
1619 | if( status == 1 && | |
1620 | (cmd->cmnd[0] == RESERVE || | |
1621 | cmd->cmnd[0] == RELEASE) ) { | |
1622 | ||
1623 | cmd->result |= (DID_ERROR << 16) | | |
3d45cefc | 1624 | SAM_STAT_RESERVATION_CONFLICT; |
1da177e4 LT |
1625 | } |
1626 | else | |
1627 | #endif | |
1628 | cmd->result |= (DID_BAD_TARGET << 16)|status; | |
1629 | } | |
1630 | ||
0f2bb84d | 1631 | mega_free_scb(adapter, scb); |
1da177e4 LT |
1632 | |
1633 | /* Add Scsi_Command to end of completed queue */ | |
1634 | list_add_tail(SCSI_LIST(cmd), &adapter->completed_list); | |
1635 | } | |
1636 | } | |
1637 | ||
1638 | ||
1639 | /* | |
1640 | * mega_runpendq() | |
1641 | * | |
1642 | * Run through the list of completed requests and finish it | |
1643 | */ | |
1644 | static void | |
1645 | mega_rundoneq (adapter_t *adapter) | |
1646 | { | |
fb597392 | 1647 | struct megaraid_cmd_priv *cmd_priv; |
1da177e4 | 1648 | |
fb597392 BVA |
1649 | list_for_each_entry(cmd_priv, &adapter->completed_list, entry) |
1650 | scsi_done(megaraid_to_scsi_cmd(cmd_priv)); | |
1da177e4 LT |
1651 | |
1652 | INIT_LIST_HEAD(&adapter->completed_list); | |
1653 | } | |
1654 | ||
1655 | ||
1656 | /* | |
1657 | * Free a SCB structure | |
1658 | * Note: We assume the scsi commands associated with this scb is not free yet. | |
1659 | */ | |
1660 | static void | |
1661 | mega_free_scb(adapter_t *adapter, scb_t *scb) | |
1662 | { | |
1663 | switch( scb->dma_type ) { | |
1664 | ||
1665 | case MEGA_DMA_TYPE_NONE: | |
1666 | break; | |
1667 | ||
1da177e4 | 1668 | case MEGA_SGLIST: |
3f6270ef | 1669 | scsi_dma_unmap(scb->cmd); |
1da177e4 | 1670 | break; |
1da177e4 LT |
1671 | default: |
1672 | break; | |
1673 | } | |
1674 | ||
1675 | /* | |
1676 | * Remove from the pending list | |
1677 | */ | |
1678 | list_del_init(&scb->list); | |
1679 | ||
1680 | /* Link the scb back into free list */ | |
1681 | scb->state = SCB_FREE; | |
1682 | scb->cmd = NULL; | |
1683 | ||
1684 | list_add(&scb->list, &adapter->free_list); | |
1685 | } | |
1686 | ||
1687 | ||
1688 | static int | |
1689 | __mega_busywait_mbox (adapter_t *adapter) | |
1690 | { | |
1691 | volatile mbox_t *mbox = adapter->mbox; | |
1692 | long counter; | |
1693 | ||
1694 | for (counter = 0; counter < 10000; counter++) { | |
1695 | if (!mbox->m_in.busy) | |
1696 | return 0; | |
e1fa0cea AL |
1697 | udelay(100); |
1698 | cond_resched(); | |
1da177e4 LT |
1699 | } |
1700 | return -1; /* give up after 1 second */ | |
1701 | } | |
1702 | ||
1703 | /* | |
1704 | * Copies data to SGLIST | |
1705 | * Note: For 64 bit cards, we need a minimum of one SG element for read/write | |
1706 | */ | |
1707 | static int | |
1708 | mega_build_sglist(adapter_t *adapter, scb_t *scb, u32 *buf, u32 *len) | |
1709 | { | |
3f6270ef | 1710 | struct scatterlist *sg; |
91ebc1fa | 1711 | struct scsi_cmnd *cmd; |
1da177e4 LT |
1712 | int sgcnt; |
1713 | int idx; | |
1714 | ||
1715 | cmd = scb->cmd; | |
1716 | ||
1da177e4 LT |
1717 | /* |
1718 | * Copy Scatter-Gather list info into controller structure. | |
1719 | * | |
1720 | * The number of sg elements returned must not exceed our limit | |
1721 | */ | |
3f6270ef | 1722 | sgcnt = scsi_dma_map(cmd); |
1da177e4 LT |
1723 | |
1724 | scb->dma_type = MEGA_SGLIST; | |
1725 | ||
3f6270ef | 1726 | BUG_ON(sgcnt > adapter->sglen || sgcnt < 0); |
1da177e4 | 1727 | |
51c928c3 JB |
1728 | *len = 0; |
1729 | ||
d5e89385 FT |
1730 | if (scsi_sg_count(cmd) == 1 && !adapter->has_64bit_addr) { |
1731 | sg = scsi_sglist(cmd); | |
1732 | scb->dma_h_bulkdata = sg_dma_address(sg); | |
1733 | *buf = (u32)scb->dma_h_bulkdata; | |
1734 | *len = sg_dma_len(sg); | |
1735 | return 0; | |
1736 | } | |
1737 | ||
3f6270ef FT |
1738 | scsi_for_each_sg(cmd, sg, sgcnt, idx) { |
1739 | if (adapter->has_64bit_addr) { | |
1740 | scb->sgl64[idx].address = sg_dma_address(sg); | |
1741 | *len += scb->sgl64[idx].length = sg_dma_len(sg); | |
1742 | } else { | |
1743 | scb->sgl[idx].address = sg_dma_address(sg); | |
1744 | *len += scb->sgl[idx].length = sg_dma_len(sg); | |
1da177e4 LT |
1745 | } |
1746 | } | |
1747 | ||
1748 | /* Reset pointer and length fields */ | |
1749 | *buf = scb->sgl_dma_addr; | |
1750 | ||
1da177e4 LT |
1751 | /* Return count of SG requests */ |
1752 | return sgcnt; | |
1753 | } | |
1754 | ||
1755 | ||
1756 | /* | |
1757 | * mega_8_to_40ld() | |
1758 | * | |
1759 | * takes all info in AdapterInquiry structure and puts it into ProductInfo and | |
1760 | * Enquiry3 structures for later use | |
1761 | */ | |
1762 | static void | |
1763 | mega_8_to_40ld(mraid_inquiry *inquiry, mega_inquiry3 *enquiry3, | |
1764 | mega_product_info *product_info) | |
1765 | { | |
1766 | int i; | |
1767 | ||
1768 | product_info->max_commands = inquiry->adapter_info.max_commands; | |
1769 | enquiry3->rebuild_rate = inquiry->adapter_info.rebuild_rate; | |
1770 | product_info->nchannels = inquiry->adapter_info.nchannels; | |
1771 | ||
1772 | for (i = 0; i < 4; i++) { | |
1773 | product_info->fw_version[i] = | |
1774 | inquiry->adapter_info.fw_version[i]; | |
1775 | ||
1776 | product_info->bios_version[i] = | |
1777 | inquiry->adapter_info.bios_version[i]; | |
1778 | } | |
1779 | enquiry3->cache_flush_interval = | |
1780 | inquiry->adapter_info.cache_flush_interval; | |
1781 | ||
1782 | product_info->dram_size = inquiry->adapter_info.dram_size; | |
1783 | ||
1784 | enquiry3->num_ldrv = inquiry->logdrv_info.num_ldrv; | |
1785 | ||
1786 | for (i = 0; i < MAX_LOGICAL_DRIVES_8LD; i++) { | |
1787 | enquiry3->ldrv_size[i] = inquiry->logdrv_info.ldrv_size[i]; | |
1788 | enquiry3->ldrv_prop[i] = inquiry->logdrv_info.ldrv_prop[i]; | |
1789 | enquiry3->ldrv_state[i] = inquiry->logdrv_info.ldrv_state[i]; | |
1790 | } | |
1791 | ||
1792 | for (i = 0; i < (MAX_PHYSICAL_DRIVES); i++) | |
1793 | enquiry3->pdrv_state[i] = inquiry->pdrv_info.pdrv_state[i]; | |
1794 | } | |
1795 | ||
1796 | static inline void | |
1797 | mega_free_sgl(adapter_t *adapter) | |
1798 | { | |
1799 | scb_t *scb; | |
1800 | int i; | |
1801 | ||
1802 | for(i = 0; i < adapter->max_cmds; i++) { | |
1803 | ||
1804 | scb = &adapter->scb_list[i]; | |
1805 | ||
1806 | if( scb->sgl64 ) { | |
ec090ef8 SU |
1807 | dma_free_coherent(&adapter->dev->dev, |
1808 | sizeof(mega_sgl64) * adapter->sglen, | |
1809 | scb->sgl64, scb->sgl_dma_addr); | |
1da177e4 LT |
1810 | |
1811 | scb->sgl64 = NULL; | |
1812 | } | |
1813 | ||
1814 | if( scb->pthru ) { | |
ec090ef8 SU |
1815 | dma_free_coherent(&adapter->dev->dev, |
1816 | sizeof(mega_passthru), scb->pthru, | |
1817 | scb->pthru_dma_addr); | |
1da177e4 LT |
1818 | |
1819 | scb->pthru = NULL; | |
1820 | } | |
1821 | ||
1822 | if( scb->epthru ) { | |
ec090ef8 SU |
1823 | dma_free_coherent(&adapter->dev->dev, |
1824 | sizeof(mega_ext_passthru), | |
1825 | scb->epthru, scb->epthru_dma_addr); | |
1da177e4 LT |
1826 | |
1827 | scb->epthru = NULL; | |
1828 | } | |
1829 | ||
1830 | } | |
1831 | } | |
1832 | ||
1833 | ||
1834 | /* | |
1835 | * Get information about the card/driver | |
1836 | */ | |
1837 | const char * | |
1838 | megaraid_info(struct Scsi_Host *host) | |
1839 | { | |
1840 | static char buffer[512]; | |
1841 | adapter_t *adapter; | |
1842 | ||
1843 | adapter = (adapter_t *)host->hostdata; | |
1844 | ||
1845 | sprintf (buffer, | |
1846 | "LSI Logic MegaRAID %s %d commands %d targs %d chans %d luns", | |
1847 | adapter->fw_version, adapter->product_info.max_commands, | |
1848 | adapter->host->max_id, adapter->host->max_channel, | |
1abf635d | 1849 | (u32)adapter->host->max_lun); |
1da177e4 LT |
1850 | return buffer; |
1851 | } | |
1852 | ||
1853 | /* | |
1854 | * Abort a previous SCSI request. Only commands on the pending list can be | |
1855 | * aborted. All the commands issued to the F/W must complete. | |
1856 | */ | |
1857 | static int | |
91ebc1fa | 1858 | megaraid_abort(struct scsi_cmnd *cmd) |
1da177e4 LT |
1859 | { |
1860 | adapter_t *adapter; | |
1861 | int rval; | |
1862 | ||
1863 | adapter = (adapter_t *)cmd->device->host->hostdata; | |
1864 | ||
1865 | rval = megaraid_abort_and_reset(adapter, cmd, SCB_ABORT); | |
1866 | ||
1867 | /* | |
1868 | * This is required here to complete any completed requests | |
1869 | * to be communicated over to the mid layer. | |
1870 | */ | |
1871 | mega_rundoneq(adapter); | |
1872 | ||
1873 | return rval; | |
1874 | } | |
1875 | ||
1876 | ||
1877 | static int | |
fa4c4966 | 1878 | megaraid_reset(struct scsi_cmnd *cmd) |
1da177e4 LT |
1879 | { |
1880 | adapter_t *adapter; | |
1881 | megacmd_t mc; | |
1882 | int rval; | |
1883 | ||
1884 | adapter = (adapter_t *)cmd->device->host->hostdata; | |
1885 | ||
1886 | #if MEGA_HAVE_CLUSTERING | |
1887 | mc.cmd = MEGA_CLUSTER_CMD; | |
1888 | mc.opcode = MEGA_RESET_RESERVATIONS; | |
1889 | ||
cb0258a2 | 1890 | if( mega_internal_command(adapter, &mc, NULL) != 0 ) { |
3b8a1ba3 | 1891 | dev_warn(&adapter->dev->dev, "reservation reset failed\n"); |
1da177e4 LT |
1892 | } |
1893 | else { | |
3b8a1ba3 | 1894 | dev_info(&adapter->dev->dev, "reservation reset\n"); |
1da177e4 | 1895 | } |
1da177e4 LT |
1896 | #endif |
1897 | ||
fa4c4966 JB |
1898 | spin_lock_irq(&adapter->lock); |
1899 | ||
1da177e4 LT |
1900 | rval = megaraid_abort_and_reset(adapter, cmd, SCB_RESET); |
1901 | ||
1902 | /* | |
1903 | * This is required here to complete any completed requests | |
1904 | * to be communicated over to the mid layer. | |
1905 | */ | |
1906 | mega_rundoneq(adapter); | |
94d0e7b8 JG |
1907 | spin_unlock_irq(&adapter->lock); |
1908 | ||
fa4c4966 | 1909 | return rval; |
94d0e7b8 | 1910 | } |
1da177e4 | 1911 | |
1da177e4 LT |
1912 | /** |
1913 | * megaraid_abort_and_reset() | |
2b46e5c1 DLM |
1914 | * @adapter: megaraid soft state |
1915 | * @cmd: scsi command to be aborted or reset | |
1916 | * @aor: abort or reset flag | |
1da177e4 LT |
1917 | * |
1918 | * Try to locate the scsi command in the pending queue. If found and is not | |
1919 | * issued to the controller, abort/reset it. Otherwise return failure | |
1920 | */ | |
1921 | static int | |
91ebc1fa | 1922 | megaraid_abort_and_reset(adapter_t *adapter, struct scsi_cmnd *cmd, int aor) |
1da177e4 LT |
1923 | { |
1924 | struct list_head *pos, *next; | |
1925 | scb_t *scb; | |
1926 | ||
3b8a1ba3 | 1927 | dev_warn(&adapter->dev->dev, "%s cmd=%x <c=%d t=%d l=%d>\n", |
5cd049a5 | 1928 | (aor == SCB_ABORT)? "ABORTING":"RESET", |
9cb78c16 HR |
1929 | cmd->cmnd[0], cmd->device->channel, |
1930 | cmd->device->id, (u32)cmd->device->lun); | |
1da177e4 LT |
1931 | |
1932 | if(list_empty(&adapter->pending_list)) | |
b6c92b7e | 1933 | return FAILED; |
1da177e4 LT |
1934 | |
1935 | list_for_each_safe(pos, next, &adapter->pending_list) { | |
1936 | ||
1937 | scb = list_entry(pos, scb_t, list); | |
1938 | ||
1939 | if (scb->cmd == cmd) { /* Found command */ | |
1940 | ||
1941 | scb->state |= aor; | |
1942 | ||
1943 | /* | |
d41ad938 NA |
1944 | * Check if this command has firmware ownership. If |
1945 | * yes, we cannot reset this command. Whenever f/w | |
1da177e4 LT |
1946 | * completes this command, we will return appropriate |
1947 | * status from ISR. | |
1948 | */ | |
1949 | if( scb->state & SCB_ISSUED ) { | |
1950 | ||
3b8a1ba3 BH |
1951 | dev_warn(&adapter->dev->dev, |
1952 | "%s[%x], fw owner\n", | |
1da177e4 | 1953 | (aor==SCB_ABORT) ? "ABORTING":"RESET", |
5cd049a5 | 1954 | scb->idx); |
1da177e4 | 1955 | |
b6c92b7e | 1956 | return FAILED; |
1da177e4 LT |
1957 | } |
1958 | else { | |
1959 | ||
1960 | /* | |
1961 | * Not yet issued! Remove from the pending | |
1962 | * list | |
1963 | */ | |
3b8a1ba3 BH |
1964 | dev_warn(&adapter->dev->dev, |
1965 | "%s-[%x], driver owner\n", | |
1da177e4 | 1966 | (aor==SCB_ABORT) ? "ABORTING":"RESET", |
5cd049a5 | 1967 | scb->idx); |
1da177e4 LT |
1968 | |
1969 | mega_free_scb(adapter, scb); | |
1970 | ||
1971 | if( aor == SCB_ABORT ) { | |
1972 | cmd->result = (DID_ABORT << 16); | |
1973 | } | |
1974 | else { | |
1975 | cmd->result = (DID_RESET << 16); | |
1976 | } | |
1977 | ||
1978 | list_add_tail(SCSI_LIST(cmd), | |
1979 | &adapter->completed_list); | |
1980 | ||
b6c92b7e | 1981 | return SUCCESS; |
1da177e4 LT |
1982 | } |
1983 | } | |
1984 | } | |
1985 | ||
b6c92b7e | 1986 | return FAILED; |
1da177e4 LT |
1987 | } |
1988 | ||
1989 | static inline int | |
1990 | make_local_pdev(adapter_t *adapter, struct pci_dev **pdev) | |
1991 | { | |
8b1fce04 | 1992 | *pdev = pci_alloc_dev(NULL); |
1da177e4 LT |
1993 | |
1994 | if( *pdev == NULL ) return -1; | |
1995 | ||
1996 | memcpy(*pdev, adapter->dev, sizeof(struct pci_dev)); | |
1997 | ||
ec090ef8 | 1998 | if (dma_set_mask(&(*pdev)->dev, DMA_BIT_MASK(32)) != 0) { |
1da177e4 LT |
1999 | kfree(*pdev); |
2000 | return -1; | |
2001 | } | |
2002 | ||
2003 | return 0; | |
2004 | } | |
2005 | ||
2006 | static inline void | |
2007 | free_local_pdev(struct pci_dev *pdev) | |
2008 | { | |
2009 | kfree(pdev); | |
2010 | } | |
2011 | ||
2012 | /** | |
2013 | * mega_allocate_inquiry() | |
2b46e5c1 DLM |
2014 | * @dma_handle: handle returned for dma address |
2015 | * @pdev: handle to pci device | |
1da177e4 LT |
2016 | * |
2017 | * allocates memory for inquiry structure | |
2018 | */ | |
2019 | static inline void * | |
2020 | mega_allocate_inquiry(dma_addr_t *dma_handle, struct pci_dev *pdev) | |
2021 | { | |
ec090ef8 SU |
2022 | return dma_alloc_coherent(&pdev->dev, sizeof(mega_inquiry3), |
2023 | dma_handle, GFP_KERNEL); | |
1da177e4 LT |
2024 | } |
2025 | ||
2026 | ||
2027 | static inline void | |
2028 | mega_free_inquiry(void *inquiry, dma_addr_t dma_handle, struct pci_dev *pdev) | |
2029 | { | |
ec090ef8 SU |
2030 | dma_free_coherent(&pdev->dev, sizeof(mega_inquiry3), inquiry, |
2031 | dma_handle); | |
1da177e4 LT |
2032 | } |
2033 | ||
2034 | ||
2035 | #ifdef CONFIG_PROC_FS | |
2036 | /* Following code handles /proc fs */ | |
2037 | ||
1da177e4 | 2038 | /** |
c7f079ca | 2039 | * proc_show_config() |
2b46e5c1 DLM |
2040 | * @m: Synthetic file construction data |
2041 | * @v: File iterator | |
1da177e4 LT |
2042 | * |
2043 | * Display configuration information about the controller. | |
2044 | */ | |
2045 | static int | |
c7f079ca | 2046 | proc_show_config(struct seq_file *m, void *v) |
1da177e4 LT |
2047 | { |
2048 | ||
c7f079ca | 2049 | adapter_t *adapter = m->private; |
1da177e4 | 2050 | |
c7f079ca | 2051 | seq_puts(m, MEGARAID_VERSION); |
1da177e4 | 2052 | if(adapter->product_info.product_name[0]) |
c7f079ca | 2053 | seq_printf(m, "%s\n", adapter->product_info.product_name); |
1da177e4 | 2054 | |
c7f079ca | 2055 | seq_puts(m, "Controller Type: "); |
1da177e4 | 2056 | |
c7f079ca DH |
2057 | if( adapter->flag & BOARD_MEMMAP ) |
2058 | seq_puts(m, "438/466/467/471/493/518/520/531/532\n"); | |
2059 | else | |
2060 | seq_puts(m, "418/428/434\n"); | |
1da177e4 | 2061 | |
c7f079ca DH |
2062 | if(adapter->flag & BOARD_40LD) |
2063 | seq_puts(m, "Controller Supports 40 Logical Drives\n"); | |
1da177e4 | 2064 | |
c7f079ca DH |
2065 | if(adapter->flag & BOARD_64BIT) |
2066 | seq_puts(m, "Controller capable of 64-bit memory addressing\n"); | |
2067 | if( adapter->has_64bit_addr ) | |
2068 | seq_puts(m, "Controller using 64-bit memory addressing\n"); | |
2069 | else | |
2070 | seq_puts(m, "Controller is not using 64-bit memory addressing\n"); | |
2071 | ||
2072 | seq_printf(m, "Base = %08lx, Irq = %d, ", | |
2073 | adapter->base, adapter->host->irq); | |
2074 | ||
2075 | seq_printf(m, "Logical Drives = %d, Channels = %d\n", | |
2076 | adapter->numldrv, adapter->product_info.nchannels); | |
2077 | ||
2078 | seq_printf(m, "Version =%s:%s, DRAM = %dMb\n", | |
2079 | adapter->fw_version, adapter->bios_version, | |
2080 | adapter->product_info.dram_size); | |
2081 | ||
2082 | seq_printf(m, "Controller Queue Depth = %d, Driver Queue Depth = %d\n", | |
2083 | adapter->product_info.max_commands, adapter->max_cmds); | |
2084 | ||
2085 | seq_printf(m, "support_ext_cdb = %d\n", adapter->support_ext_cdb); | |
2086 | seq_printf(m, "support_random_del = %d\n", adapter->support_random_del); | |
2087 | seq_printf(m, "boot_ldrv_enabled = %d\n", adapter->boot_ldrv_enabled); | |
2088 | seq_printf(m, "boot_ldrv = %d\n", adapter->boot_ldrv); | |
2089 | seq_printf(m, "boot_pdrv_enabled = %d\n", adapter->boot_pdrv_enabled); | |
2090 | seq_printf(m, "boot_pdrv_ch = %d\n", adapter->boot_pdrv_ch); | |
2091 | seq_printf(m, "boot_pdrv_tgt = %d\n", adapter->boot_pdrv_tgt); | |
2092 | seq_printf(m, "quiescent = %d\n", | |
2093 | atomic_read(&adapter->quiescent)); | |
2094 | seq_printf(m, "has_cluster = %d\n", adapter->has_cluster); | |
2095 | ||
2096 | seq_puts(m, "\nModule Parameters:\n"); | |
2097 | seq_printf(m, "max_cmd_per_lun = %d\n", max_cmd_per_lun); | |
2098 | seq_printf(m, "max_sectors_per_io = %d\n", max_sectors_per_io); | |
2099 | return 0; | |
1da177e4 LT |
2100 | } |
2101 | ||
1da177e4 | 2102 | /** |
c7f079ca | 2103 | * proc_show_stat() |
2b46e5c1 DLM |
2104 | * @m: Synthetic file construction data |
2105 | * @v: File iterator | |
1da177e4 | 2106 | * |
c7f079ca | 2107 | * Display statistical information about the I/O activity. |
1da177e4 LT |
2108 | */ |
2109 | static int | |
c7f079ca | 2110 | proc_show_stat(struct seq_file *m, void *v) |
1da177e4 | 2111 | { |
c7f079ca DH |
2112 | adapter_t *adapter = m->private; |
2113 | #if MEGA_HAVE_STATS | |
1da177e4 | 2114 | int i; |
c7f079ca | 2115 | #endif |
1da177e4 | 2116 | |
c7f079ca DH |
2117 | seq_puts(m, "Statistical Information for this controller\n"); |
2118 | seq_printf(m, "pend_cmds = %d\n", atomic_read(&adapter->pend_cmds)); | |
1da177e4 LT |
2119 | #if MEGA_HAVE_STATS |
2120 | for(i = 0; i < adapter->numldrv; i++) { | |
c7f079ca DH |
2121 | seq_printf(m, "Logical Drive %d:\n", i); |
2122 | seq_printf(m, "\tReads Issued = %lu, Writes Issued = %lu\n", | |
2123 | adapter->nreads[i], adapter->nwrites[i]); | |
2124 | seq_printf(m, "\tSectors Read = %lu, Sectors Written = %lu\n", | |
2125 | adapter->nreadblocks[i], adapter->nwriteblocks[i]); | |
2126 | seq_printf(m, "\tRead errors = %lu, Write errors = %lu\n\n", | |
2127 | adapter->rd_errors[i], adapter->wr_errors[i]); | |
1da177e4 LT |
2128 | } |
2129 | #else | |
c7f079ca | 2130 | seq_puts(m, "IO and error counters not compiled in driver.\n"); |
1da177e4 | 2131 | #endif |
c7f079ca | 2132 | return 0; |
1da177e4 LT |
2133 | } |
2134 | ||
2135 | ||
2136 | /** | |
c7f079ca | 2137 | * proc_show_mbox() |
2b46e5c1 DLM |
2138 | * @m: Synthetic file construction data |
2139 | * @v: File iterator | |
1da177e4 LT |
2140 | * |
2141 | * Display mailbox information for the last command issued. This information | |
2142 | * is good for debugging. | |
2143 | */ | |
2144 | static int | |
c7f079ca | 2145 | proc_show_mbox(struct seq_file *m, void *v) |
1da177e4 | 2146 | { |
c7f079ca | 2147 | adapter_t *adapter = m->private; |
1da177e4 | 2148 | volatile mbox_t *mbox = adapter->mbox; |
c7f079ca DH |
2149 | |
2150 | seq_puts(m, "Contents of Mail Box Structure\n"); | |
2151 | seq_printf(m, " Fw Command = 0x%02x\n", mbox->m_out.cmd); | |
2152 | seq_printf(m, " Cmd Sequence = 0x%02x\n", mbox->m_out.cmdid); | |
2153 | seq_printf(m, " No of Sectors= %04d\n", mbox->m_out.numsectors); | |
2154 | seq_printf(m, " LBA = 0x%02x\n", mbox->m_out.lba); | |
2155 | seq_printf(m, " DTA = 0x%08x\n", mbox->m_out.xferaddr); | |
2156 | seq_printf(m, " Logical Drive= 0x%02x\n", mbox->m_out.logdrv); | |
2157 | seq_printf(m, " No of SG Elmt= 0x%02x\n", mbox->m_out.numsgelements); | |
2158 | seq_printf(m, " Busy = %01x\n", mbox->m_in.busy); | |
2159 | seq_printf(m, " Status = 0x%02x\n", mbox->m_in.status); | |
2160 | return 0; | |
1da177e4 LT |
2161 | } |
2162 | ||
2163 | ||
2164 | /** | |
c7f079ca | 2165 | * proc_show_rebuild_rate() |
2b46e5c1 DLM |
2166 | * @m: Synthetic file construction data |
2167 | * @v: File iterator | |
1da177e4 LT |
2168 | * |
2169 | * Display current rebuild rate | |
2170 | */ | |
2171 | static int | |
c7f079ca | 2172 | proc_show_rebuild_rate(struct seq_file *m, void *v) |
1da177e4 | 2173 | { |
c7f079ca | 2174 | adapter_t *adapter = m->private; |
1da177e4 LT |
2175 | dma_addr_t dma_handle; |
2176 | caddr_t inquiry; | |
2177 | struct pci_dev *pdev; | |
1da177e4 | 2178 | |
c7f079ca DH |
2179 | if( make_local_pdev(adapter, &pdev) != 0 ) |
2180 | return 0; | |
1da177e4 | 2181 | |
c7f079ca DH |
2182 | if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL ) |
2183 | goto free_pdev; | |
1da177e4 LT |
2184 | |
2185 | if( mega_adapinq(adapter, dma_handle) != 0 ) { | |
c7f079ca | 2186 | seq_puts(m, "Adapter inquiry failed.\n"); |
3b8a1ba3 | 2187 | dev_warn(&adapter->dev->dev, "inquiry failed\n"); |
c7f079ca | 2188 | goto free_inquiry; |
1da177e4 LT |
2189 | } |
2190 | ||
c7f079ca DH |
2191 | if( adapter->flag & BOARD_40LD ) |
2192 | seq_printf(m, "Rebuild Rate: [%d%%]\n", | |
2193 | ((mega_inquiry3 *)inquiry)->rebuild_rate); | |
2194 | else | |
2195 | seq_printf(m, "Rebuild Rate: [%d%%]\n", | |
1da177e4 | 2196 | ((mraid_ext_inquiry *) |
c7f079ca | 2197 | inquiry)->raid_inq.adapter_info.rebuild_rate); |
1da177e4 | 2198 | |
c7f079ca | 2199 | free_inquiry: |
1da177e4 | 2200 | mega_free_inquiry(inquiry, dma_handle, pdev); |
c7f079ca | 2201 | free_pdev: |
1da177e4 | 2202 | free_local_pdev(pdev); |
c7f079ca | 2203 | return 0; |
1da177e4 LT |
2204 | } |
2205 | ||
2206 | ||
2207 | /** | |
c7f079ca | 2208 | * proc_show_battery() |
2b46e5c1 DLM |
2209 | * @m: Synthetic file construction data |
2210 | * @v: File iterator | |
1da177e4 LT |
2211 | * |
2212 | * Display information about the battery module on the controller. | |
2213 | */ | |
2214 | static int | |
c7f079ca | 2215 | proc_show_battery(struct seq_file *m, void *v) |
1da177e4 | 2216 | { |
c7f079ca | 2217 | adapter_t *adapter = m->private; |
1da177e4 LT |
2218 | dma_addr_t dma_handle; |
2219 | caddr_t inquiry; | |
2220 | struct pci_dev *pdev; | |
c7f079ca | 2221 | u8 battery_status; |
1da177e4 | 2222 | |
c7f079ca DH |
2223 | if( make_local_pdev(adapter, &pdev) != 0 ) |
2224 | return 0; | |
1da177e4 | 2225 | |
c7f079ca DH |
2226 | if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL ) |
2227 | goto free_pdev; | |
1da177e4 LT |
2228 | |
2229 | if( mega_adapinq(adapter, dma_handle) != 0 ) { | |
91c40f24 | 2230 | seq_puts(m, "Adapter inquiry failed.\n"); |
3b8a1ba3 | 2231 | dev_warn(&adapter->dev->dev, "inquiry failed\n"); |
c7f079ca | 2232 | goto free_inquiry; |
1da177e4 LT |
2233 | } |
2234 | ||
2235 | if( adapter->flag & BOARD_40LD ) { | |
2236 | battery_status = ((mega_inquiry3 *)inquiry)->battery_status; | |
2237 | } | |
2238 | else { | |
2239 | battery_status = ((mraid_ext_inquiry *)inquiry)-> | |
2240 | raid_inq.adapter_info.battery_status; | |
2241 | } | |
2242 | ||
2243 | /* | |
2244 | * Decode the battery status | |
2245 | */ | |
c7f079ca | 2246 | seq_printf(m, "Battery Status:[%d]", battery_status); |
1da177e4 LT |
2247 | |
2248 | if(battery_status == MEGA_BATT_CHARGE_DONE) | |
c7f079ca | 2249 | seq_puts(m, " Charge Done"); |
1da177e4 LT |
2250 | |
2251 | if(battery_status & MEGA_BATT_MODULE_MISSING) | |
c7f079ca | 2252 | seq_puts(m, " Module Missing"); |
1da177e4 LT |
2253 | |
2254 | if(battery_status & MEGA_BATT_LOW_VOLTAGE) | |
c7f079ca | 2255 | seq_puts(m, " Low Voltage"); |
1da177e4 LT |
2256 | |
2257 | if(battery_status & MEGA_BATT_TEMP_HIGH) | |
c7f079ca | 2258 | seq_puts(m, " Temperature High"); |
1da177e4 LT |
2259 | |
2260 | if(battery_status & MEGA_BATT_PACK_MISSING) | |
c7f079ca | 2261 | seq_puts(m, " Pack Missing"); |
1da177e4 LT |
2262 | |
2263 | if(battery_status & MEGA_BATT_CHARGE_INPROG) | |
c7f079ca | 2264 | seq_puts(m, " Charge In-progress"); |
1da177e4 LT |
2265 | |
2266 | if(battery_status & MEGA_BATT_CHARGE_FAIL) | |
c7f079ca | 2267 | seq_puts(m, " Charge Fail"); |
1da177e4 LT |
2268 | |
2269 | if(battery_status & MEGA_BATT_CYCLES_EXCEEDED) | |
c7f079ca | 2270 | seq_puts(m, " Cycles Exceeded"); |
1da177e4 | 2271 | |
c7f079ca | 2272 | seq_putc(m, '\n'); |
1da177e4 | 2273 | |
c7f079ca | 2274 | free_inquiry: |
1da177e4 | 2275 | mega_free_inquiry(inquiry, dma_handle, pdev); |
c7f079ca | 2276 | free_pdev: |
1da177e4 | 2277 | free_local_pdev(pdev); |
c7f079ca | 2278 | return 0; |
1da177e4 LT |
2279 | } |
2280 | ||
2281 | ||
c7f079ca DH |
2282 | /* |
2283 | * Display scsi inquiry | |
1da177e4 | 2284 | */ |
c7f079ca DH |
2285 | static void |
2286 | mega_print_inquiry(struct seq_file *m, char *scsi_inq) | |
1da177e4 | 2287 | { |
c7f079ca | 2288 | int i; |
1da177e4 | 2289 | |
c7f079ca DH |
2290 | seq_puts(m, " Vendor: "); |
2291 | seq_write(m, scsi_inq + 8, 8); | |
2292 | seq_puts(m, " Model: "); | |
2293 | seq_write(m, scsi_inq + 16, 16); | |
2294 | seq_puts(m, " Rev: "); | |
2295 | seq_write(m, scsi_inq + 32, 4); | |
2296 | seq_putc(m, '\n'); | |
1da177e4 | 2297 | |
c7f079ca DH |
2298 | i = scsi_inq[0] & 0x1f; |
2299 | seq_printf(m, " Type: %s ", scsi_device_type(i)); | |
1da177e4 | 2300 | |
c7f079ca DH |
2301 | seq_printf(m, " ANSI SCSI revision: %02x", |
2302 | scsi_inq[2] & 0x07); | |
1da177e4 | 2303 | |
c7f079ca DH |
2304 | if( (scsi_inq[2] & 0x07) == 1 && (scsi_inq[3] & 0x0f) == 1 ) |
2305 | seq_puts(m, " CCS\n"); | |
2306 | else | |
2307 | seq_putc(m, '\n'); | |
1da177e4 LT |
2308 | } |
2309 | ||
1da177e4 | 2310 | /** |
c7f079ca | 2311 | * proc_show_pdrv() |
2b46e5c1 DLM |
2312 | * @m: Synthetic file construction data |
2313 | * @adapter: pointer to our soft state | |
2314 | * @channel: channel | |
1da177e4 LT |
2315 | * |
2316 | * Display information about the physical drives. | |
2317 | */ | |
2318 | static int | |
c7f079ca | 2319 | proc_show_pdrv(struct seq_file *m, adapter_t *adapter, int channel) |
1da177e4 LT |
2320 | { |
2321 | dma_addr_t dma_handle; | |
2322 | char *scsi_inq; | |
2323 | dma_addr_t scsi_inq_dma_handle; | |
2324 | caddr_t inquiry; | |
2325 | struct pci_dev *pdev; | |
2326 | u8 *pdrv_state; | |
2327 | u8 state; | |
2328 | int tgt; | |
2329 | int max_channels; | |
1da177e4 LT |
2330 | int i; |
2331 | ||
c7f079ca DH |
2332 | if( make_local_pdev(adapter, &pdev) != 0 ) |
2333 | return 0; | |
1da177e4 | 2334 | |
c7f079ca | 2335 | if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL ) |
1da177e4 | 2336 | goto free_pdev; |
1da177e4 LT |
2337 | |
2338 | if( mega_adapinq(adapter, dma_handle) != 0 ) { | |
c7f079ca | 2339 | seq_puts(m, "Adapter inquiry failed.\n"); |
3b8a1ba3 | 2340 | dev_warn(&adapter->dev->dev, "inquiry failed\n"); |
1da177e4 LT |
2341 | goto free_inquiry; |
2342 | } | |
2343 | ||
2344 | ||
ec090ef8 SU |
2345 | scsi_inq = dma_alloc_coherent(&pdev->dev, 256, &scsi_inq_dma_handle, |
2346 | GFP_KERNEL); | |
1da177e4 | 2347 | if( scsi_inq == NULL ) { |
c7f079ca | 2348 | seq_puts(m, "memory not available for scsi inq.\n"); |
1da177e4 LT |
2349 | goto free_inquiry; |
2350 | } | |
2351 | ||
2352 | if( adapter->flag & BOARD_40LD ) { | |
2353 | pdrv_state = ((mega_inquiry3 *)inquiry)->pdrv_state; | |
2354 | } | |
2355 | else { | |
2356 | pdrv_state = ((mraid_ext_inquiry *)inquiry)-> | |
2357 | raid_inq.pdrv_info.pdrv_state; | |
2358 | } | |
2359 | ||
2360 | max_channels = adapter->product_info.nchannels; | |
2361 | ||
2362 | if( channel >= max_channels ) { | |
2363 | goto free_pci; | |
2364 | } | |
2365 | ||
2366 | for( tgt = 0; tgt <= MAX_TARGET; tgt++ ) { | |
2367 | ||
2368 | i = channel*16 + tgt; | |
2369 | ||
2370 | state = *(pdrv_state + i); | |
1da177e4 | 2371 | switch( state & 0x0F ) { |
1da177e4 | 2372 | case PDRV_ONLINE: |
c7f079ca DH |
2373 | seq_printf(m, "Channel:%2d Id:%2d State: Online", |
2374 | channel, tgt); | |
1da177e4 LT |
2375 | break; |
2376 | ||
2377 | case PDRV_FAILED: | |
c7f079ca DH |
2378 | seq_printf(m, "Channel:%2d Id:%2d State: Failed", |
2379 | channel, tgt); | |
1da177e4 LT |
2380 | break; |
2381 | ||
2382 | case PDRV_RBLD: | |
c7f079ca DH |
2383 | seq_printf(m, "Channel:%2d Id:%2d State: Rebuild", |
2384 | channel, tgt); | |
1da177e4 LT |
2385 | break; |
2386 | ||
2387 | case PDRV_HOTSPARE: | |
c7f079ca DH |
2388 | seq_printf(m, "Channel:%2d Id:%2d State: Hot spare", |
2389 | channel, tgt); | |
1da177e4 LT |
2390 | break; |
2391 | ||
2392 | default: | |
c7f079ca DH |
2393 | seq_printf(m, "Channel:%2d Id:%2d State: Un-configured", |
2394 | channel, tgt); | |
1da177e4 | 2395 | break; |
1da177e4 LT |
2396 | } |
2397 | ||
2398 | /* | |
2399 | * This interface displays inquiries for disk drives | |
2400 | * only. Inquries for logical drives and non-disk | |
2401 | * devices are available through /proc/scsi/scsi | |
2402 | */ | |
2403 | memset(scsi_inq, 0, 256); | |
2404 | if( mega_internal_dev_inquiry(adapter, channel, tgt, | |
2405 | scsi_inq_dma_handle) || | |
2406 | (scsi_inq[0] & 0x1F) != TYPE_DISK ) { | |
2407 | continue; | |
2408 | } | |
2409 | ||
2410 | /* | |
2411 | * Check for overflow. We print less than 240 | |
2412 | * characters for inquiry | |
2413 | */ | |
c7f079ca DH |
2414 | seq_puts(m, ".\n"); |
2415 | mega_print_inquiry(m, scsi_inq); | |
1da177e4 LT |
2416 | } |
2417 | ||
2418 | free_pci: | |
ec090ef8 | 2419 | dma_free_coherent(&pdev->dev, 256, scsi_inq, scsi_inq_dma_handle); |
1da177e4 LT |
2420 | free_inquiry: |
2421 | mega_free_inquiry(inquiry, dma_handle, pdev); | |
2422 | free_pdev: | |
2423 | free_local_pdev(pdev); | |
c7f079ca | 2424 | return 0; |
1da177e4 LT |
2425 | } |
2426 | ||
1da177e4 | 2427 | /** |
c7f079ca | 2428 | * proc_show_pdrv_ch0() |
2b46e5c1 DLM |
2429 | * @m: Synthetic file construction data |
2430 | * @v: File iterator | |
1da177e4 | 2431 | * |
c7f079ca | 2432 | * Display information about the physical drives on physical channel 0. |
1da177e4 LT |
2433 | */ |
2434 | static int | |
c7f079ca | 2435 | proc_show_pdrv_ch0(struct seq_file *m, void *v) |
1da177e4 | 2436 | { |
c7f079ca | 2437 | return proc_show_pdrv(m, m->private, 0); |
1da177e4 LT |
2438 | } |
2439 | ||
2440 | ||
2441 | /** | |
c7f079ca | 2442 | * proc_show_pdrv_ch1() |
2b46e5c1 DLM |
2443 | * @m: Synthetic file construction data |
2444 | * @v: File iterator | |
1da177e4 | 2445 | * |
c7f079ca | 2446 | * Display information about the physical drives on physical channel 1. |
1da177e4 LT |
2447 | */ |
2448 | static int | |
c7f079ca | 2449 | proc_show_pdrv_ch1(struct seq_file *m, void *v) |
1da177e4 | 2450 | { |
c7f079ca | 2451 | return proc_show_pdrv(m, m->private, 1); |
1da177e4 LT |
2452 | } |
2453 | ||
2454 | ||
2455 | /** | |
c7f079ca | 2456 | * proc_show_pdrv_ch2() |
2b46e5c1 DLM |
2457 | * @m: Synthetic file construction data |
2458 | * @v: File iterator | |
1da177e4 | 2459 | * |
c7f079ca | 2460 | * Display information about the physical drives on physical channel 2. |
1da177e4 LT |
2461 | */ |
2462 | static int | |
c7f079ca | 2463 | proc_show_pdrv_ch2(struct seq_file *m, void *v) |
1da177e4 | 2464 | { |
c7f079ca | 2465 | return proc_show_pdrv(m, m->private, 2); |
1da177e4 LT |
2466 | } |
2467 | ||
2468 | ||
2469 | /** | |
c7f079ca | 2470 | * proc_show_pdrv_ch3() |
2b46e5c1 DLM |
2471 | * @m: Synthetic file construction data |
2472 | * @v: File iterator | |
1da177e4 | 2473 | * |
c7f079ca | 2474 | * Display information about the physical drives on physical channel 3. |
1da177e4 LT |
2475 | */ |
2476 | static int | |
c7f079ca | 2477 | proc_show_pdrv_ch3(struct seq_file *m, void *v) |
1da177e4 | 2478 | { |
c7f079ca | 2479 | return proc_show_pdrv(m, m->private, 3); |
1da177e4 LT |
2480 | } |
2481 | ||
2482 | ||
2483 | /** | |
c7f079ca | 2484 | * proc_show_rdrv() |
2b46e5c1 DLM |
2485 | * @m: Synthetic file construction data |
2486 | * @adapter: pointer to our soft state | |
2487 | * @start: starting logical drive to display | |
2488 | * @end: ending logical drive to display | |
1da177e4 LT |
2489 | * |
2490 | * We do not print the inquiry information since its already available through | |
2491 | * /proc/scsi/scsi interface | |
2492 | */ | |
2493 | static int | |
c7f079ca | 2494 | proc_show_rdrv(struct seq_file *m, adapter_t *adapter, int start, int end ) |
1da177e4 LT |
2495 | { |
2496 | dma_addr_t dma_handle; | |
2497 | logdrv_param *lparam; | |
2498 | megacmd_t mc; | |
2499 | char *disk_array; | |
2500 | dma_addr_t disk_array_dma_handle; | |
2501 | caddr_t inquiry; | |
2502 | struct pci_dev *pdev; | |
2503 | u8 *rdrv_state; | |
2504 | int num_ldrv; | |
2505 | u32 array_sz; | |
1da177e4 LT |
2506 | int i; |
2507 | ||
c7f079ca DH |
2508 | if( make_local_pdev(adapter, &pdev) != 0 ) |
2509 | return 0; | |
1da177e4 | 2510 | |
c7f079ca DH |
2511 | if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL ) |
2512 | goto free_pdev; | |
1da177e4 LT |
2513 | |
2514 | if( mega_adapinq(adapter, dma_handle) != 0 ) { | |
c7f079ca | 2515 | seq_puts(m, "Adapter inquiry failed.\n"); |
3b8a1ba3 | 2516 | dev_warn(&adapter->dev->dev, "inquiry failed\n"); |
c7f079ca | 2517 | goto free_inquiry; |
1da177e4 LT |
2518 | } |
2519 | ||
2520 | memset(&mc, 0, sizeof(megacmd_t)); | |
2521 | ||
2522 | if( adapter->flag & BOARD_40LD ) { | |
2523 | array_sz = sizeof(disk_array_40ld); | |
2524 | ||
2525 | rdrv_state = ((mega_inquiry3 *)inquiry)->ldrv_state; | |
2526 | ||
2527 | num_ldrv = ((mega_inquiry3 *)inquiry)->num_ldrv; | |
2528 | } | |
2529 | else { | |
2530 | array_sz = sizeof(disk_array_8ld); | |
2531 | ||
2532 | rdrv_state = ((mraid_ext_inquiry *)inquiry)-> | |
2533 | raid_inq.logdrv_info.ldrv_state; | |
2534 | ||
2535 | num_ldrv = ((mraid_ext_inquiry *)inquiry)-> | |
2536 | raid_inq.logdrv_info.num_ldrv; | |
2537 | } | |
2538 | ||
ec090ef8 SU |
2539 | disk_array = dma_alloc_coherent(&pdev->dev, array_sz, |
2540 | &disk_array_dma_handle, GFP_KERNEL); | |
1da177e4 LT |
2541 | |
2542 | if( disk_array == NULL ) { | |
c7f079ca DH |
2543 | seq_puts(m, "memory not available.\n"); |
2544 | goto free_inquiry; | |
1da177e4 LT |
2545 | } |
2546 | ||
2547 | mc.xferaddr = (u32)disk_array_dma_handle; | |
2548 | ||
2549 | if( adapter->flag & BOARD_40LD ) { | |
2550 | mc.cmd = FC_NEW_CONFIG; | |
2551 | mc.opcode = OP_DCMD_READ_CONFIG; | |
2552 | ||
cb0258a2 | 2553 | if( mega_internal_command(adapter, &mc, NULL) ) { |
c7f079ca DH |
2554 | seq_puts(m, "40LD read config failed.\n"); |
2555 | goto free_pci; | |
1da177e4 LT |
2556 | } |
2557 | ||
2558 | } | |
2559 | else { | |
2560 | mc.cmd = NEW_READ_CONFIG_8LD; | |
2561 | ||
cb0258a2 | 2562 | if( mega_internal_command(adapter, &mc, NULL) ) { |
1da177e4 | 2563 | mc.cmd = READ_CONFIG_8LD; |
c7f079ca DH |
2564 | if( mega_internal_command(adapter, &mc, NULL) ) { |
2565 | seq_puts(m, "8LD read config failed.\n"); | |
2566 | goto free_pci; | |
1da177e4 LT |
2567 | } |
2568 | } | |
2569 | } | |
2570 | ||
2571 | for( i = start; i < ( (end+1 < num_ldrv) ? end+1 : num_ldrv ); i++ ) { | |
2572 | ||
2573 | if( adapter->flag & BOARD_40LD ) { | |
2574 | lparam = | |
2575 | &((disk_array_40ld *)disk_array)->ldrv[i].lparam; | |
2576 | } | |
2577 | else { | |
2578 | lparam = | |
2579 | &((disk_array_8ld *)disk_array)->ldrv[i].lparam; | |
2580 | } | |
2581 | ||
2582 | /* | |
2583 | * Check for overflow. We print less than 240 characters for | |
2584 | * information about each logical drive. | |
2585 | */ | |
c7f079ca | 2586 | seq_printf(m, "Logical drive:%2d:, ", i); |
1da177e4 LT |
2587 | |
2588 | switch( rdrv_state[i] & 0x0F ) { | |
2589 | case RDRV_OFFLINE: | |
c7f079ca | 2590 | seq_puts(m, "state: offline"); |
1da177e4 | 2591 | break; |
1da177e4 | 2592 | case RDRV_DEGRADED: |
c7f079ca | 2593 | seq_puts(m, "state: degraded"); |
1da177e4 | 2594 | break; |
1da177e4 | 2595 | case RDRV_OPTIMAL: |
c7f079ca | 2596 | seq_puts(m, "state: optimal"); |
1da177e4 | 2597 | break; |
1da177e4 | 2598 | case RDRV_DELETED: |
c7f079ca | 2599 | seq_puts(m, "state: deleted"); |
1da177e4 | 2600 | break; |
1da177e4 | 2601 | default: |
c7f079ca | 2602 | seq_puts(m, "state: unknown"); |
1da177e4 LT |
2603 | break; |
2604 | } | |
2605 | ||
2606 | /* | |
2607 | * Check if check consistency or initialization is going on | |
2608 | * for this logical drive. | |
2609 | */ | |
c7f079ca DH |
2610 | if( (rdrv_state[i] & 0xF0) == 0x20 ) |
2611 | seq_puts(m, ", check-consistency in progress"); | |
2612 | else if( (rdrv_state[i] & 0xF0) == 0x10 ) | |
2613 | seq_puts(m, ", initialization in progress"); | |
1da177e4 | 2614 | |
c7f079ca | 2615 | seq_putc(m, '\n'); |
1da177e4 | 2616 | |
c7f079ca DH |
2617 | seq_printf(m, "Span depth:%3d, ", lparam->span_depth); |
2618 | seq_printf(m, "RAID level:%3d, ", lparam->level); | |
2619 | seq_printf(m, "Stripe size:%3d, ", | |
2620 | lparam->stripe_sz ? lparam->stripe_sz/2: 128); | |
2621 | seq_printf(m, "Row size:%3d\n", lparam->row_size); | |
1da177e4 | 2622 | |
c7f079ca | 2623 | seq_puts(m, "Read Policy: "); |
1da177e4 | 2624 | switch(lparam->read_ahead) { |
1da177e4 | 2625 | case NO_READ_AHEAD: |
c7f079ca | 2626 | seq_puts(m, "No read ahead, "); |
1da177e4 | 2627 | break; |
1da177e4 | 2628 | case READ_AHEAD: |
c7f079ca | 2629 | seq_puts(m, "Read ahead, "); |
1da177e4 | 2630 | break; |
1da177e4 | 2631 | case ADAP_READ_AHEAD: |
c7f079ca | 2632 | seq_puts(m, "Adaptive, "); |
1da177e4 LT |
2633 | break; |
2634 | ||
2635 | } | |
2636 | ||
c7f079ca | 2637 | seq_puts(m, "Write Policy: "); |
1da177e4 | 2638 | switch(lparam->write_mode) { |
1da177e4 | 2639 | case WRMODE_WRITE_THRU: |
c7f079ca | 2640 | seq_puts(m, "Write thru, "); |
1da177e4 | 2641 | break; |
1da177e4 | 2642 | case WRMODE_WRITE_BACK: |
c7f079ca | 2643 | seq_puts(m, "Write back, "); |
1da177e4 LT |
2644 | break; |
2645 | } | |
2646 | ||
c7f079ca | 2647 | seq_puts(m, "Cache Policy: "); |
1da177e4 | 2648 | switch(lparam->direct_io) { |
1da177e4 | 2649 | case CACHED_IO: |
c7f079ca | 2650 | seq_puts(m, "Cached IO\n\n"); |
1da177e4 | 2651 | break; |
1da177e4 | 2652 | case DIRECT_IO: |
c7f079ca | 2653 | seq_puts(m, "Direct IO\n\n"); |
1da177e4 LT |
2654 | break; |
2655 | } | |
2656 | } | |
2657 | ||
c7f079ca | 2658 | free_pci: |
ec090ef8 SU |
2659 | dma_free_coherent(&pdev->dev, array_sz, disk_array, |
2660 | disk_array_dma_handle); | |
c7f079ca DH |
2661 | free_inquiry: |
2662 | mega_free_inquiry(inquiry, dma_handle, pdev); | |
2663 | free_pdev: | |
1da177e4 | 2664 | free_local_pdev(pdev); |
c7f079ca DH |
2665 | return 0; |
2666 | } | |
1da177e4 | 2667 | |
c7f079ca DH |
2668 | /** |
2669 | * proc_show_rdrv_10() | |
2b46e5c1 DLM |
2670 | * @m: Synthetic file construction data |
2671 | * @v: File iterator | |
c7f079ca DH |
2672 | * |
2673 | * Display real time information about the logical drives 0 through 9. | |
2674 | */ | |
2675 | static int | |
2676 | proc_show_rdrv_10(struct seq_file *m, void *v) | |
2677 | { | |
2678 | return proc_show_rdrv(m, m->private, 0, 9); | |
1da177e4 | 2679 | } |
c7f079ca DH |
2680 | |
2681 | ||
2682 | /** | |
2683 | * proc_show_rdrv_20() | |
2b46e5c1 DLM |
2684 | * @m: Synthetic file construction data |
2685 | * @v: File iterator | |
c7f079ca DH |
2686 | * |
2687 | * Display real time information about the logical drives 0 through 9. | |
2688 | */ | |
2689 | static int | |
2690 | proc_show_rdrv_20(struct seq_file *m, void *v) | |
2691 | { | |
2692 | return proc_show_rdrv(m, m->private, 10, 19); | |
2693 | } | |
2694 | ||
2695 | ||
2696 | /** | |
2697 | * proc_show_rdrv_30() | |
2b46e5c1 DLM |
2698 | * @m: Synthetic file construction data |
2699 | * @v: File iterator | |
c7f079ca DH |
2700 | * |
2701 | * Display real time information about the logical drives 0 through 9. | |
2702 | */ | |
2703 | static int | |
2704 | proc_show_rdrv_30(struct seq_file *m, void *v) | |
2705 | { | |
2706 | return proc_show_rdrv(m, m->private, 20, 29); | |
2707 | } | |
2708 | ||
2709 | ||
2710 | /** | |
2711 | * proc_show_rdrv_40() | |
2b46e5c1 DLM |
2712 | * @m: Synthetic file construction data |
2713 | * @v: File iterator | |
c7f079ca DH |
2714 | * |
2715 | * Display real time information about the logical drives 0 through 9. | |
2716 | */ | |
2717 | static int | |
2718 | proc_show_rdrv_40(struct seq_file *m, void *v) | |
2719 | { | |
2720 | return proc_show_rdrv(m, m->private, 30, 39); | |
2721 | } | |
2722 | ||
c7f079ca DH |
2723 | /** |
2724 | * mega_create_proc_entry() | |
2b46e5c1 DLM |
2725 | * @index: index in soft state array |
2726 | * @parent: parent node for this /proc entry | |
c7f079ca DH |
2727 | * |
2728 | * Creates /proc entries for our controllers. | |
2729 | */ | |
2730 | static void | |
2731 | mega_create_proc_entry(int index, struct proc_dir_entry *parent) | |
2732 | { | |
f7680bec CH |
2733 | adapter_t *adapter = hba_soft_state[index]; |
2734 | struct proc_dir_entry *dir; | |
2735 | u8 string[16]; | |
c7f079ca DH |
2736 | |
2737 | sprintf(string, "hba%d", adapter->host->host_no); | |
f7680bec CH |
2738 | dir = proc_mkdir_data(string, 0, parent, adapter); |
2739 | if (!dir) { | |
3b8a1ba3 | 2740 | dev_warn(&adapter->dev->dev, "proc_mkdir failed\n"); |
c7f079ca DH |
2741 | return; |
2742 | } | |
c7f079ca | 2743 | |
f7680bec CH |
2744 | proc_create_single_data("config", S_IRUSR, dir, |
2745 | proc_show_config, adapter); | |
2746 | proc_create_single_data("stat", S_IRUSR, dir, | |
2747 | proc_show_stat, adapter); | |
2748 | proc_create_single_data("mailbox", S_IRUSR, dir, | |
2749 | proc_show_mbox, adapter); | |
2750 | #if MEGA_HAVE_ENH_PROC | |
2751 | proc_create_single_data("rebuild-rate", S_IRUSR, dir, | |
2752 | proc_show_rebuild_rate, adapter); | |
2753 | proc_create_single_data("battery-status", S_IRUSR, dir, | |
2754 | proc_show_battery, adapter); | |
2755 | proc_create_single_data("diskdrives-ch0", S_IRUSR, dir, | |
2756 | proc_show_pdrv_ch0, adapter); | |
2757 | proc_create_single_data("diskdrives-ch1", S_IRUSR, dir, | |
2758 | proc_show_pdrv_ch1, adapter); | |
2759 | proc_create_single_data("diskdrives-ch2", S_IRUSR, dir, | |
2760 | proc_show_pdrv_ch2, adapter); | |
2761 | proc_create_single_data("diskdrives-ch3", S_IRUSR, dir, | |
2762 | proc_show_pdrv_ch3, adapter); | |
2763 | proc_create_single_data("raiddrives-0-9", S_IRUSR, dir, | |
2764 | proc_show_rdrv_10, adapter); | |
2765 | proc_create_single_data("raiddrives-10-19", S_IRUSR, dir, | |
2766 | proc_show_rdrv_20, adapter); | |
2767 | proc_create_single_data("raiddrives-20-29", S_IRUSR, dir, | |
2768 | proc_show_rdrv_30, adapter); | |
2769 | proc_create_single_data("raiddrives-30-39", S_IRUSR, dir, | |
2770 | proc_show_rdrv_40, adapter); | |
2771 | #endif | |
c7f079ca DH |
2772 | } |
2773 | ||
84a3c97b | 2774 | #else |
2775 | static inline void mega_create_proc_entry(int index, struct proc_dir_entry *parent) | |
2776 | { | |
2777 | } | |
1da177e4 LT |
2778 | #endif |
2779 | ||
2780 | ||
2b46e5c1 | 2781 | /* |
1da177e4 LT |
2782 | * megaraid_biosparam() |
2783 | * | |
2784 | * Return the disk geometry for a particular disk | |
2785 | */ | |
2786 | static int | |
2787 | megaraid_biosparam(struct scsi_device *sdev, struct block_device *bdev, | |
2788 | sector_t capacity, int geom[]) | |
2789 | { | |
2790 | adapter_t *adapter; | |
1da177e4 LT |
2791 | int heads; |
2792 | int sectors; | |
2793 | int cylinders; | |
1da177e4 LT |
2794 | |
2795 | /* Get pointer to host config structure */ | |
2796 | adapter = (adapter_t *)sdev->host->hostdata; | |
2797 | ||
2798 | if (IS_RAID_CH(adapter, sdev->channel)) { | |
2799 | /* Default heads (64) & sectors (32) */ | |
2800 | heads = 64; | |
2801 | sectors = 32; | |
2802 | cylinders = (ulong)capacity / (heads * sectors); | |
2803 | ||
2804 | /* | |
2805 | * Handle extended translation size for logical drives | |
2806 | * > 1Gb | |
2807 | */ | |
2808 | if ((ulong)capacity >= 0x200000) { | |
2809 | heads = 255; | |
2810 | sectors = 63; | |
2811 | cylinders = (ulong)capacity / (heads * sectors); | |
2812 | } | |
2813 | ||
2814 | /* return result */ | |
2815 | geom[0] = heads; | |
2816 | geom[1] = sectors; | |
2817 | geom[2] = cylinders; | |
2818 | } | |
2819 | else { | |
a10183d7 CH |
2820 | if (scsi_partsize(bdev, capacity, geom)) |
2821 | return 0; | |
1da177e4 | 2822 | |
3b8a1ba3 BH |
2823 | dev_info(&adapter->dev->dev, |
2824 | "invalid partition on this disk on channel %d\n", | |
2825 | sdev->channel); | |
1da177e4 LT |
2826 | |
2827 | /* Default heads (64) & sectors (32) */ | |
2828 | heads = 64; | |
2829 | sectors = 32; | |
2830 | cylinders = (ulong)capacity / (heads * sectors); | |
2831 | ||
2832 | /* Handle extended translation size for logical drives > 1Gb */ | |
2833 | if ((ulong)capacity >= 0x200000) { | |
2834 | heads = 255; | |
2835 | sectors = 63; | |
2836 | cylinders = (ulong)capacity / (heads * sectors); | |
2837 | } | |
2838 | ||
2839 | /* return result */ | |
2840 | geom[0] = heads; | |
2841 | geom[1] = sectors; | |
2842 | geom[2] = cylinders; | |
2843 | } | |
2844 | ||
2845 | return 0; | |
2846 | } | |
2847 | ||
2848 | /** | |
2849 | * mega_init_scb() | |
2b46e5c1 | 2850 | * @adapter: pointer to our soft state |
1da177e4 LT |
2851 | * |
2852 | * Allocate memory for the various pointers in the scb structures: | |
2853 | * scatter-gather list pointer, passthru and extended passthru structure | |
2854 | * pointers. | |
2855 | */ | |
2856 | static int | |
2857 | mega_init_scb(adapter_t *adapter) | |
2858 | { | |
2859 | scb_t *scb; | |
2860 | int i; | |
2861 | ||
2862 | for( i = 0; i < adapter->max_cmds; i++ ) { | |
2863 | ||
2864 | scb = &adapter->scb_list[i]; | |
2865 | ||
2866 | scb->sgl64 = NULL; | |
2867 | scb->sgl = NULL; | |
2868 | scb->pthru = NULL; | |
2869 | scb->epthru = NULL; | |
2870 | } | |
2871 | ||
2872 | for( i = 0; i < adapter->max_cmds; i++ ) { | |
2873 | ||
2874 | scb = &adapter->scb_list[i]; | |
2875 | ||
2876 | scb->idx = i; | |
2877 | ||
ec090ef8 SU |
2878 | scb->sgl64 = dma_alloc_coherent(&adapter->dev->dev, |
2879 | sizeof(mega_sgl64) * adapter->sglen, | |
2880 | &scb->sgl_dma_addr, GFP_KERNEL); | |
1da177e4 LT |
2881 | |
2882 | scb->sgl = (mega_sglist *)scb->sgl64; | |
2883 | ||
2884 | if( !scb->sgl ) { | |
3b8a1ba3 | 2885 | dev_warn(&adapter->dev->dev, "RAID: Can't allocate sglist\n"); |
1da177e4 LT |
2886 | mega_free_sgl(adapter); |
2887 | return -1; | |
2888 | } | |
2889 | ||
ec090ef8 SU |
2890 | scb->pthru = dma_alloc_coherent(&adapter->dev->dev, |
2891 | sizeof(mega_passthru), | |
2892 | &scb->pthru_dma_addr, GFP_KERNEL); | |
1da177e4 LT |
2893 | |
2894 | if( !scb->pthru ) { | |
3b8a1ba3 | 2895 | dev_warn(&adapter->dev->dev, "RAID: Can't allocate passthru\n"); |
1da177e4 LT |
2896 | mega_free_sgl(adapter); |
2897 | return -1; | |
2898 | } | |
2899 | ||
ec090ef8 SU |
2900 | scb->epthru = dma_alloc_coherent(&adapter->dev->dev, |
2901 | sizeof(mega_ext_passthru), | |
2902 | &scb->epthru_dma_addr, GFP_KERNEL); | |
1da177e4 LT |
2903 | |
2904 | if( !scb->epthru ) { | |
3b8a1ba3 BH |
2905 | dev_warn(&adapter->dev->dev, |
2906 | "Can't allocate extended passthru\n"); | |
1da177e4 LT |
2907 | mega_free_sgl(adapter); |
2908 | return -1; | |
2909 | } | |
2910 | ||
2911 | ||
2912 | scb->dma_type = MEGA_DMA_TYPE_NONE; | |
2913 | ||
2914 | /* | |
2915 | * Link to free list | |
2916 | * lock not required since we are loading the driver, so no | |
2917 | * commands possible right now. | |
2918 | */ | |
2919 | scb->state = SCB_FREE; | |
2920 | scb->cmd = NULL; | |
2921 | list_add(&scb->list, &adapter->free_list); | |
2922 | } | |
2923 | ||
2924 | return 0; | |
2925 | } | |
2926 | ||
2927 | ||
2928 | /** | |
2929 | * megadev_open() | |
2b46e5c1 DLM |
2930 | * @inode: unused |
2931 | * @filep: unused | |
1da177e4 LT |
2932 | * |
2933 | * Routines for the character/ioctl interface to the driver. Find out if this | |
d21c95c5 | 2934 | * is a valid open. |
1da177e4 LT |
2935 | */ |
2936 | static int | |
2937 | megadev_open (struct inode *inode, struct file *filep) | |
2938 | { | |
2939 | /* | |
2940 | * Only allow superuser to access private ioctl interface | |
2941 | */ | |
2942 | if( !capable(CAP_SYS_ADMIN) ) return -EACCES; | |
2943 | ||
2944 | return 0; | |
2945 | } | |
2946 | ||
2947 | ||
2948 | /** | |
2949 | * megadev_ioctl() | |
2b46e5c1 DLM |
2950 | * @filep: Our device file |
2951 | * @cmd: ioctl command | |
2952 | * @arg: user buffer | |
1da177e4 LT |
2953 | * |
2954 | * ioctl entry point for our private ioctl interface. We move the data in from | |
2955 | * the user space, prepare the command (if necessary, convert the old MIMD | |
2956 | * ioctl to new ioctl command), and issue a synchronous command to the | |
2957 | * controller. | |
2958 | */ | |
2959 | static int | |
f4927c45 | 2960 | megadev_ioctl(struct file *filep, unsigned int cmd, unsigned long arg) |
1da177e4 LT |
2961 | { |
2962 | adapter_t *adapter; | |
2963 | nitioctl_t uioc; | |
2964 | int adapno; | |
2965 | int rval; | |
2966 | mega_passthru __user *upthru; /* user address for passthru */ | |
2967 | mega_passthru *pthru; /* copy user passthru here */ | |
2968 | dma_addr_t pthru_dma_hndl; | |
2969 | void *data = NULL; /* data to be transferred */ | |
2970 | dma_addr_t data_dma_hndl; /* dma handle for data xfer area */ | |
2971 | megacmd_t mc; | |
aa055885 DLM |
2972 | #if MEGA_HAVE_STATS |
2973 | megastat_t __user *ustats = NULL; | |
2974 | int num_ldrv = 0; | |
2975 | #endif | |
1da177e4 LT |
2976 | u32 uxferaddr = 0; |
2977 | struct pci_dev *pdev; | |
2978 | ||
1da177e4 LT |
2979 | /* |
2980 | * Make sure only USCSICMD are issued through this interface. | |
2981 | * MIMD application would still fire different command. | |
2982 | */ | |
2983 | if( (_IOC_TYPE(cmd) != MEGAIOC_MAGIC) && (cmd != USCSICMD) ) { | |
2984 | return -EINVAL; | |
2985 | } | |
2986 | ||
2987 | /* | |
2988 | * Check and convert a possible MIMD command to NIT command. | |
2989 | * mega_m_to_n() copies the data from the user space, so we do not | |
2990 | * have to do it here. | |
2991 | * NOTE: We will need some user address to copyout the data, therefore | |
2992 | * the inteface layer will also provide us with the required user | |
2993 | * addresses. | |
2994 | */ | |
2995 | memset(&uioc, 0, sizeof(nitioctl_t)); | |
2996 | if( (rval = mega_m_to_n( (void __user *)arg, &uioc)) != 0 ) | |
2997 | return rval; | |
2998 | ||
2999 | ||
3000 | switch( uioc.opcode ) { | |
3001 | ||
3002 | case GET_DRIVER_VER: | |
3003 | if( put_user(driver_ver, (u32 __user *)uioc.uioc_uaddr) ) | |
3004 | return (-EFAULT); | |
3005 | ||
3006 | break; | |
3007 | ||
3008 | case GET_N_ADAP: | |
3009 | if( put_user(hba_count, (u32 __user *)uioc.uioc_uaddr) ) | |
3010 | return (-EFAULT); | |
3011 | ||
3012 | /* | |
3013 | * Shucks. MIMD interface returns a positive value for number | |
3014 | * of adapters. TODO: Change it to return 0 when there is no | |
3015 | * applicatio using mimd interface. | |
3016 | */ | |
3017 | return hba_count; | |
3018 | ||
3019 | case GET_ADAP_INFO: | |
3020 | ||
3021 | /* | |
3022 | * Which adapter | |
3023 | */ | |
3024 | if( (adapno = GETADAP(uioc.adapno)) >= hba_count ) | |
3025 | return (-ENODEV); | |
3026 | ||
3027 | if( copy_to_user(uioc.uioc_uaddr, mcontroller+adapno, | |
3028 | sizeof(struct mcontroller)) ) | |
3029 | return (-EFAULT); | |
3030 | break; | |
3031 | ||
3032 | #if MEGA_HAVE_STATS | |
3033 | ||
3034 | case GET_STATS: | |
3035 | /* | |
3036 | * Which adapter | |
3037 | */ | |
3038 | if( (adapno = GETADAP(uioc.adapno)) >= hba_count ) | |
3039 | return (-ENODEV); | |
3040 | ||
3041 | adapter = hba_soft_state[adapno]; | |
3042 | ||
3043 | ustats = uioc.uioc_uaddr; | |
3044 | ||
3045 | if( copy_from_user(&num_ldrv, &ustats->num_ldrv, sizeof(int)) ) | |
3046 | return (-EFAULT); | |
3047 | ||
3048 | /* | |
3049 | * Check for the validity of the logical drive number | |
3050 | */ | |
3051 | if( num_ldrv >= MAX_LOGICAL_DRIVES_40LD ) return -EINVAL; | |
3052 | ||
3053 | if( copy_to_user(ustats->nreads, adapter->nreads, | |
3054 | num_ldrv*sizeof(u32)) ) | |
3055 | return -EFAULT; | |
3056 | ||
3057 | if( copy_to_user(ustats->nreadblocks, adapter->nreadblocks, | |
3058 | num_ldrv*sizeof(u32)) ) | |
3059 | return -EFAULT; | |
3060 | ||
3061 | if( copy_to_user(ustats->nwrites, adapter->nwrites, | |
3062 | num_ldrv*sizeof(u32)) ) | |
3063 | return -EFAULT; | |
3064 | ||
3065 | if( copy_to_user(ustats->nwriteblocks, adapter->nwriteblocks, | |
3066 | num_ldrv*sizeof(u32)) ) | |
3067 | return -EFAULT; | |
3068 | ||
3069 | if( copy_to_user(ustats->rd_errors, adapter->rd_errors, | |
3070 | num_ldrv*sizeof(u32)) ) | |
3071 | return -EFAULT; | |
3072 | ||
3073 | if( copy_to_user(ustats->wr_errors, adapter->wr_errors, | |
3074 | num_ldrv*sizeof(u32)) ) | |
3075 | return -EFAULT; | |
3076 | ||
3077 | return 0; | |
3078 | ||
3079 | #endif | |
3080 | case MBOX_CMD: | |
3081 | ||
3082 | /* | |
3083 | * Which adapter | |
3084 | */ | |
3085 | if( (adapno = GETADAP(uioc.adapno)) >= hba_count ) | |
3086 | return (-ENODEV); | |
3087 | ||
3088 | adapter = hba_soft_state[adapno]; | |
3089 | ||
3090 | /* | |
3091 | * Deletion of logical drive is a special case. The adapter | |
3092 | * should be quiescent before this command is issued. | |
3093 | */ | |
3094 | if( uioc.uioc_rmbox[0] == FC_DEL_LOGDRV && | |
3095 | uioc.uioc_rmbox[2] == OP_DEL_LOGDRV ) { | |
3096 | ||
3097 | /* | |
3098 | * Do we support this feature | |
3099 | */ | |
3100 | if( !adapter->support_random_del ) { | |
3b8a1ba3 BH |
3101 | dev_warn(&adapter->dev->dev, "logdrv " |
3102 | "delete on non-supporting F/W\n"); | |
1da177e4 LT |
3103 | |
3104 | return (-EINVAL); | |
3105 | } | |
3106 | ||
3107 | rval = mega_del_logdrv( adapter, uioc.uioc_rmbox[3] ); | |
3108 | ||
3109 | if( rval == 0 ) { | |
3110 | memset(&mc, 0, sizeof(megacmd_t)); | |
3111 | ||
3112 | mc.status = rval; | |
3113 | ||
3114 | rval = mega_n_to_m((void __user *)arg, &mc); | |
3115 | } | |
3116 | ||
3117 | return rval; | |
3118 | } | |
3119 | /* | |
3120 | * This interface only support the regular passthru commands. | |
3121 | * Reject extended passthru and 64-bit passthru | |
3122 | */ | |
3123 | if( uioc.uioc_rmbox[0] == MEGA_MBOXCMD_PASSTHRU64 || | |
3124 | uioc.uioc_rmbox[0] == MEGA_MBOXCMD_EXTPTHRU ) { | |
3125 | ||
3b8a1ba3 | 3126 | dev_warn(&adapter->dev->dev, "rejected passthru\n"); |
1da177e4 LT |
3127 | |
3128 | return (-EINVAL); | |
3129 | } | |
3130 | ||
3131 | /* | |
3132 | * For all internal commands, the buffer must be allocated in | |
3133 | * <4GB address range | |
3134 | */ | |
3135 | if( make_local_pdev(adapter, &pdev) != 0 ) | |
3136 | return -EIO; | |
3137 | ||
3138 | /* Is it a passthru command or a DCMD */ | |
3139 | if( uioc.uioc_rmbox[0] == MEGA_MBOXCMD_PASSTHRU ) { | |
3140 | /* Passthru commands */ | |
3141 | ||
ec090ef8 SU |
3142 | pthru = dma_alloc_coherent(&pdev->dev, |
3143 | sizeof(mega_passthru), | |
3144 | &pthru_dma_hndl, GFP_KERNEL); | |
1da177e4 LT |
3145 | |
3146 | if( pthru == NULL ) { | |
3147 | free_local_pdev(pdev); | |
3148 | return (-ENOMEM); | |
3149 | } | |
3150 | ||
3151 | /* | |
3152 | * The user passthru structure | |
3153 | */ | |
de5952e9 | 3154 | upthru = (mega_passthru __user *)(unsigned long)MBOX(uioc)->xferaddr; |
1da177e4 LT |
3155 | |
3156 | /* | |
3157 | * Copy in the user passthru here. | |
3158 | */ | |
3159 | if( copy_from_user(pthru, upthru, | |
3160 | sizeof(mega_passthru)) ) { | |
3161 | ||
ec090ef8 SU |
3162 | dma_free_coherent(&pdev->dev, |
3163 | sizeof(mega_passthru), | |
3164 | pthru, pthru_dma_hndl); | |
1da177e4 LT |
3165 | |
3166 | free_local_pdev(pdev); | |
3167 | ||
3168 | return (-EFAULT); | |
3169 | } | |
3170 | ||
3171 | /* | |
3172 | * Is there a data transfer | |
3173 | */ | |
3174 | if( pthru->dataxferlen ) { | |
ec090ef8 SU |
3175 | data = dma_alloc_coherent(&pdev->dev, |
3176 | pthru->dataxferlen, | |
3177 | &data_dma_hndl, | |
3178 | GFP_KERNEL); | |
1da177e4 LT |
3179 | |
3180 | if( data == NULL ) { | |
ec090ef8 SU |
3181 | dma_free_coherent(&pdev->dev, |
3182 | sizeof(mega_passthru), | |
3183 | pthru, | |
3184 | pthru_dma_hndl); | |
1da177e4 LT |
3185 | |
3186 | free_local_pdev(pdev); | |
3187 | ||
3188 | return (-ENOMEM); | |
3189 | } | |
3190 | ||
3191 | /* | |
3192 | * Save the user address and point the kernel | |
3193 | * address at just allocated memory | |
3194 | */ | |
3195 | uxferaddr = pthru->dataxferaddr; | |
3196 | pthru->dataxferaddr = data_dma_hndl; | |
3197 | } | |
3198 | ||
3199 | ||
3200 | /* | |
3201 | * Is data coming down-stream | |
3202 | */ | |
3203 | if( pthru->dataxferlen && (uioc.flags & UIOC_WR) ) { | |
3204 | /* | |
3205 | * Get the user data | |
3206 | */ | |
de5952e9 | 3207 | if( copy_from_user(data, (char __user *)(unsigned long) uxferaddr, |
1da177e4 LT |
3208 | pthru->dataxferlen) ) { |
3209 | rval = (-EFAULT); | |
3210 | goto freemem_and_return; | |
3211 | } | |
3212 | } | |
3213 | ||
3214 | memset(&mc, 0, sizeof(megacmd_t)); | |
3215 | ||
3216 | mc.cmd = MEGA_MBOXCMD_PASSTHRU; | |
3217 | mc.xferaddr = (u32)pthru_dma_hndl; | |
3218 | ||
3219 | /* | |
3220 | * Issue the command | |
3221 | */ | |
cb0258a2 | 3222 | mega_internal_command(adapter, &mc, pthru); |
1da177e4 LT |
3223 | |
3224 | rval = mega_n_to_m((void __user *)arg, &mc); | |
3225 | ||
3226 | if( rval ) goto freemem_and_return; | |
3227 | ||
3228 | ||
3229 | /* | |
3230 | * Is data going up-stream | |
3231 | */ | |
3232 | if( pthru->dataxferlen && (uioc.flags & UIOC_RD) ) { | |
de5952e9 | 3233 | if( copy_to_user((char __user *)(unsigned long) uxferaddr, data, |
1da177e4 LT |
3234 | pthru->dataxferlen) ) { |
3235 | rval = (-EFAULT); | |
3236 | } | |
3237 | } | |
3238 | ||
3239 | /* | |
3240 | * Send the request sense data also, irrespective of | |
3241 | * whether the user has asked for it or not. | |
3242 | */ | |
2d2f8d59 JJ |
3243 | if (copy_to_user(upthru->reqsensearea, |
3244 | pthru->reqsensearea, 14)) | |
3245 | rval = -EFAULT; | |
1da177e4 LT |
3246 | |
3247 | freemem_and_return: | |
3248 | if( pthru->dataxferlen ) { | |
ec090ef8 SU |
3249 | dma_free_coherent(&pdev->dev, |
3250 | pthru->dataxferlen, data, | |
3251 | data_dma_hndl); | |
1da177e4 LT |
3252 | } |
3253 | ||
ec090ef8 SU |
3254 | dma_free_coherent(&pdev->dev, sizeof(mega_passthru), |
3255 | pthru, pthru_dma_hndl); | |
1da177e4 LT |
3256 | |
3257 | free_local_pdev(pdev); | |
3258 | ||
3259 | return rval; | |
3260 | } | |
3261 | else { | |
3262 | /* DCMD commands */ | |
3263 | ||
3264 | /* | |
3265 | * Is there a data transfer | |
3266 | */ | |
3267 | if( uioc.xferlen ) { | |
ec090ef8 SU |
3268 | data = dma_alloc_coherent(&pdev->dev, |
3269 | uioc.xferlen, | |
3270 | &data_dma_hndl, | |
3271 | GFP_KERNEL); | |
1da177e4 LT |
3272 | |
3273 | if( data == NULL ) { | |
3274 | free_local_pdev(pdev); | |
3275 | return (-ENOMEM); | |
3276 | } | |
3277 | ||
3278 | uxferaddr = MBOX(uioc)->xferaddr; | |
3279 | } | |
3280 | ||
3281 | /* | |
3282 | * Is data coming down-stream | |
3283 | */ | |
3284 | if( uioc.xferlen && (uioc.flags & UIOC_WR) ) { | |
3285 | /* | |
3286 | * Get the user data | |
3287 | */ | |
de5952e9 | 3288 | if( copy_from_user(data, (char __user *)(unsigned long) uxferaddr, |
1da177e4 LT |
3289 | uioc.xferlen) ) { |
3290 | ||
ec090ef8 SU |
3291 | dma_free_coherent(&pdev->dev, |
3292 | uioc.xferlen, data, | |
3293 | data_dma_hndl); | |
1da177e4 LT |
3294 | |
3295 | free_local_pdev(pdev); | |
3296 | ||
3297 | return (-EFAULT); | |
3298 | } | |
3299 | } | |
3300 | ||
3301 | memcpy(&mc, MBOX(uioc), sizeof(megacmd_t)); | |
3302 | ||
3303 | mc.xferaddr = (u32)data_dma_hndl; | |
3304 | ||
3305 | /* | |
3306 | * Issue the command | |
3307 | */ | |
cb0258a2 | 3308 | mega_internal_command(adapter, &mc, NULL); |
1da177e4 LT |
3309 | |
3310 | rval = mega_n_to_m((void __user *)arg, &mc); | |
3311 | ||
3312 | if( rval ) { | |
3313 | if( uioc.xferlen ) { | |
ec090ef8 SU |
3314 | dma_free_coherent(&pdev->dev, |
3315 | uioc.xferlen, data, | |
3316 | data_dma_hndl); | |
1da177e4 LT |
3317 | } |
3318 | ||
3319 | free_local_pdev(pdev); | |
3320 | ||
3321 | return rval; | |
3322 | } | |
3323 | ||
3324 | /* | |
3325 | * Is data going up-stream | |
3326 | */ | |
3327 | if( uioc.xferlen && (uioc.flags & UIOC_RD) ) { | |
de5952e9 | 3328 | if( copy_to_user((char __user *)(unsigned long) uxferaddr, data, |
1da177e4 LT |
3329 | uioc.xferlen) ) { |
3330 | ||
3331 | rval = (-EFAULT); | |
3332 | } | |
3333 | } | |
3334 | ||
3335 | if( uioc.xferlen ) { | |
ec090ef8 SU |
3336 | dma_free_coherent(&pdev->dev, uioc.xferlen, |
3337 | data, data_dma_hndl); | |
1da177e4 LT |
3338 | } |
3339 | ||
3340 | free_local_pdev(pdev); | |
3341 | ||
3342 | return rval; | |
3343 | } | |
3344 | ||
3345 | default: | |
3346 | return (-EINVAL); | |
3347 | } | |
3348 | ||
3349 | return 0; | |
3350 | } | |
3351 | ||
f4927c45 AB |
3352 | static long |
3353 | megadev_unlocked_ioctl(struct file *filep, unsigned int cmd, unsigned long arg) | |
3354 | { | |
3355 | int ret; | |
3356 | ||
c45d15d2 | 3357 | mutex_lock(&megadev_mutex); |
f4927c45 | 3358 | ret = megadev_ioctl(filep, cmd, arg); |
c45d15d2 | 3359 | mutex_unlock(&megadev_mutex); |
f4927c45 AB |
3360 | |
3361 | return ret; | |
3362 | } | |
3363 | ||
1da177e4 LT |
3364 | /** |
3365 | * mega_m_to_n() | |
2b46e5c1 DLM |
3366 | * @arg: user address |
3367 | * @uioc: new ioctl structure | |
1da177e4 LT |
3368 | * |
3369 | * A thin layer to convert older mimd interface ioctl structure to NIT ioctl | |
3370 | * structure | |
3371 | * | |
3372 | * Converts the older mimd ioctl structure to newer NIT structure | |
3373 | */ | |
3374 | static int | |
3375 | mega_m_to_n(void __user *arg, nitioctl_t *uioc) | |
3376 | { | |
3377 | struct uioctl_t uioc_mimd; | |
3378 | char signature[8] = {0}; | |
3379 | u8 opcode; | |
3380 | u8 subopcode; | |
3381 | ||
3382 | ||
3383 | /* | |
3384 | * check is the application conforms to NIT. We do not have to do much | |
3385 | * in that case. | |
3386 | * We exploit the fact that the signature is stored in the very | |
25985edc | 3387 | * beginning of the structure. |
1da177e4 LT |
3388 | */ |
3389 | ||
3390 | if( copy_from_user(signature, arg, 7) ) | |
3391 | return (-EFAULT); | |
3392 | ||
3393 | if( memcmp(signature, "MEGANIT", 7) == 0 ) { | |
3394 | ||
3395 | /* | |
3396 | * NOTE NOTE: The nit ioctl is still under flux because of | |
3397 | * change of mailbox definition, in HPE. No applications yet | |
3398 | * use this interface and let's not have applications use this | |
3399 | * interface till the new specifitions are in place. | |
3400 | */ | |
3401 | return -EINVAL; | |
3402 | #if 0 | |
3403 | if( copy_from_user(uioc, arg, sizeof(nitioctl_t)) ) | |
3404 | return (-EFAULT); | |
3405 | return 0; | |
3406 | #endif | |
3407 | } | |
3408 | ||
3409 | /* | |
3410 | * Else assume we have mimd uioctl_t as arg. Convert to nitioctl_t | |
3411 | * | |
3412 | * Get the user ioctl structure | |
3413 | */ | |
3414 | if( copy_from_user(&uioc_mimd, arg, sizeof(struct uioctl_t)) ) | |
3415 | return (-EFAULT); | |
3416 | ||
3417 | ||
3418 | /* | |
3419 | * Get the opcode and subopcode for the commands | |
3420 | */ | |
3421 | opcode = uioc_mimd.ui.fcs.opcode; | |
3422 | subopcode = uioc_mimd.ui.fcs.subopcode; | |
3423 | ||
3424 | switch (opcode) { | |
3425 | case 0x82: | |
3426 | ||
3427 | switch (subopcode) { | |
3428 | ||
3429 | case MEGAIOC_QDRVRVER: /* Query driver version */ | |
3430 | uioc->opcode = GET_DRIVER_VER; | |
3431 | uioc->uioc_uaddr = uioc_mimd.data; | |
3432 | break; | |
3433 | ||
3434 | case MEGAIOC_QNADAP: /* Get # of adapters */ | |
3435 | uioc->opcode = GET_N_ADAP; | |
3436 | uioc->uioc_uaddr = uioc_mimd.data; | |
3437 | break; | |
3438 | ||
3439 | case MEGAIOC_QADAPINFO: /* Get adapter information */ | |
3440 | uioc->opcode = GET_ADAP_INFO; | |
3441 | uioc->adapno = uioc_mimd.ui.fcs.adapno; | |
3442 | uioc->uioc_uaddr = uioc_mimd.data; | |
3443 | break; | |
3444 | ||
3445 | default: | |
3446 | return(-EINVAL); | |
3447 | } | |
3448 | ||
3449 | break; | |
3450 | ||
3451 | ||
3452 | case 0x81: | |
3453 | ||
3454 | uioc->opcode = MBOX_CMD; | |
3455 | uioc->adapno = uioc_mimd.ui.fcs.adapno; | |
3456 | ||
3457 | memcpy(uioc->uioc_rmbox, uioc_mimd.mbox, 18); | |
3458 | ||
3459 | uioc->xferlen = uioc_mimd.ui.fcs.length; | |
3460 | ||
3461 | if( uioc_mimd.outlen ) uioc->flags = UIOC_RD; | |
3462 | if( uioc_mimd.inlen ) uioc->flags |= UIOC_WR; | |
3463 | ||
3464 | break; | |
3465 | ||
3466 | case 0x80: | |
3467 | ||
3468 | uioc->opcode = MBOX_CMD; | |
3469 | uioc->adapno = uioc_mimd.ui.fcs.adapno; | |
3470 | ||
3471 | memcpy(uioc->uioc_rmbox, uioc_mimd.mbox, 18); | |
3472 | ||
3473 | /* | |
3474 | * Choose the xferlen bigger of input and output data | |
3475 | */ | |
3476 | uioc->xferlen = uioc_mimd.outlen > uioc_mimd.inlen ? | |
3477 | uioc_mimd.outlen : uioc_mimd.inlen; | |
3478 | ||
3479 | if( uioc_mimd.outlen ) uioc->flags = UIOC_RD; | |
3480 | if( uioc_mimd.inlen ) uioc->flags |= UIOC_WR; | |
3481 | ||
3482 | break; | |
3483 | ||
3484 | default: | |
3485 | return (-EINVAL); | |
3486 | ||
3487 | } | |
3488 | ||
3489 | return 0; | |
3490 | } | |
3491 | ||
3492 | /* | |
3493 | * mega_n_to_m() | |
2b46e5c1 DLM |
3494 | * @arg: user address |
3495 | * @mc: mailbox command | |
1da177e4 LT |
3496 | * |
3497 | * Updates the status information to the application, depending on application | |
3498 | * conforms to older mimd ioctl interface or newer NIT ioctl interface | |
3499 | */ | |
3500 | static int | |
3501 | mega_n_to_m(void __user *arg, megacmd_t *mc) | |
3502 | { | |
3503 | nitioctl_t __user *uiocp; | |
3504 | megacmd_t __user *umc; | |
3505 | mega_passthru __user *upthru; | |
3506 | struct uioctl_t __user *uioc_mimd; | |
3507 | char signature[8] = {0}; | |
3508 | ||
3509 | /* | |
3510 | * check is the application conforms to NIT. | |
3511 | */ | |
3512 | if( copy_from_user(signature, arg, 7) ) | |
3513 | return -EFAULT; | |
3514 | ||
3515 | if( memcmp(signature, "MEGANIT", 7) == 0 ) { | |
3516 | ||
3517 | uiocp = arg; | |
3518 | ||
3519 | if( put_user(mc->status, (u8 __user *)&MBOX_P(uiocp)->status) ) | |
3520 | return (-EFAULT); | |
3521 | ||
3522 | if( mc->cmd == MEGA_MBOXCMD_PASSTHRU ) { | |
3523 | ||
3524 | umc = MBOX_P(uiocp); | |
3525 | ||
3526 | if (get_user(upthru, (mega_passthru __user * __user *)&umc->xferaddr)) | |
3527 | return -EFAULT; | |
3528 | ||
3529 | if( put_user(mc->status, (u8 __user *)&upthru->scsistatus)) | |
3530 | return (-EFAULT); | |
3531 | } | |
3532 | } | |
3533 | else { | |
3534 | uioc_mimd = arg; | |
3535 | ||
3536 | if( put_user(mc->status, (u8 __user *)&uioc_mimd->mbox[17]) ) | |
3537 | return (-EFAULT); | |
3538 | ||
3539 | if( mc->cmd == MEGA_MBOXCMD_PASSTHRU ) { | |
3540 | ||
3541 | umc = (megacmd_t __user *)uioc_mimd->mbox; | |
3542 | ||
3543 | if (get_user(upthru, (mega_passthru __user * __user *)&umc->xferaddr)) | |
3544 | return (-EFAULT); | |
3545 | ||
3546 | if( put_user(mc->status, (u8 __user *)&upthru->scsistatus) ) | |
3547 | return (-EFAULT); | |
3548 | } | |
3549 | } | |
3550 | ||
3551 | return 0; | |
3552 | } | |
3553 | ||
3554 | ||
3555 | /* | |
3556 | * MEGARAID 'FW' commands. | |
3557 | */ | |
3558 | ||
3559 | /** | |
3560 | * mega_is_bios_enabled() | |
2b46e5c1 | 3561 | * @adapter: pointer to our soft state |
1da177e4 LT |
3562 | * |
3563 | * issue command to find out if the BIOS is enabled for this controller | |
3564 | */ | |
3565 | static int | |
3566 | mega_is_bios_enabled(adapter_t *adapter) | |
3567 | { | |
315d049a KC |
3568 | struct mbox_out mbox; |
3569 | unsigned char *raw_mbox = (u8 *)&mbox; | |
1da177e4 | 3570 | |
315d049a | 3571 | memset(&mbox, 0, sizeof(mbox)); |
1da177e4 LT |
3572 | |
3573 | memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE); | |
3574 | ||
315d049a | 3575 | mbox.xferaddr = (u32)adapter->buf_dma_handle; |
1da177e4 LT |
3576 | |
3577 | raw_mbox[0] = IS_BIOS_ENABLED; | |
3578 | raw_mbox[2] = GET_BIOS; | |
3579 | ||
b1a557c2 | 3580 | issue_scb_block(adapter, raw_mbox); |
1da177e4 LT |
3581 | |
3582 | return *(char *)adapter->mega_buffer; | |
3583 | } | |
3584 | ||
3585 | ||
3586 | /** | |
3587 | * mega_enum_raid_scsi() | |
2b46e5c1 | 3588 | * @adapter: pointer to our soft state |
1da177e4 LT |
3589 | * |
3590 | * Find out what channels are RAID/SCSI. This information is used to | |
3591 | * differentiate the virtual channels and physical channels and to support | |
3592 | * ROMB feature and non-disk devices. | |
3593 | */ | |
3594 | static void | |
3595 | mega_enum_raid_scsi(adapter_t *adapter) | |
3596 | { | |
315d049a KC |
3597 | struct mbox_out mbox; |
3598 | unsigned char *raw_mbox = (u8 *)&mbox; | |
1da177e4 LT |
3599 | int i; |
3600 | ||
315d049a | 3601 | memset(&mbox, 0, sizeof(mbox)); |
1da177e4 LT |
3602 | |
3603 | /* | |
3604 | * issue command to find out what channels are raid/scsi | |
3605 | */ | |
3606 | raw_mbox[0] = CHNL_CLASS; | |
3607 | raw_mbox[2] = GET_CHNL_CLASS; | |
3608 | ||
3609 | memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE); | |
3610 | ||
315d049a | 3611 | mbox.xferaddr = (u32)adapter->buf_dma_handle; |
1da177e4 LT |
3612 | |
3613 | /* | |
3614 | * Non-ROMB firmware fail this command, so all channels | |
3615 | * must be shown RAID | |
3616 | */ | |
3617 | adapter->mega_ch_class = 0xFF; | |
3618 | ||
3619 | if(!issue_scb_block(adapter, raw_mbox)) { | |
3620 | adapter->mega_ch_class = *((char *)adapter->mega_buffer); | |
3621 | ||
3622 | } | |
3623 | ||
3624 | for( i = 0; i < adapter->product_info.nchannels; i++ ) { | |
3625 | if( (adapter->mega_ch_class >> i) & 0x01 ) { | |
3b8a1ba3 | 3626 | dev_info(&adapter->dev->dev, "channel[%d] is raid\n", |
1da177e4 LT |
3627 | i); |
3628 | } | |
3629 | else { | |
3b8a1ba3 | 3630 | dev_info(&adapter->dev->dev, "channel[%d] is scsi\n", |
1da177e4 LT |
3631 | i); |
3632 | } | |
3633 | } | |
3634 | ||
3635 | return; | |
3636 | } | |
3637 | ||
3638 | ||
3639 | /** | |
3640 | * mega_get_boot_drv() | |
2b46e5c1 | 3641 | * @adapter: pointer to our soft state |
1da177e4 LT |
3642 | * |
3643 | * Find out which device is the boot device. Note, any logical drive or any | |
3644 | * phyical device (e.g., a CDROM) can be designated as a boot device. | |
3645 | */ | |
3646 | static void | |
3647 | mega_get_boot_drv(adapter_t *adapter) | |
3648 | { | |
3649 | struct private_bios_data *prv_bios_data; | |
315d049a KC |
3650 | struct mbox_out mbox; |
3651 | unsigned char *raw_mbox = (u8 *)&mbox; | |
1da177e4 LT |
3652 | u16 cksum = 0; |
3653 | u8 *cksum_p; | |
3654 | u8 boot_pdrv; | |
3655 | int i; | |
3656 | ||
315d049a | 3657 | memset(&mbox, 0, sizeof(mbox)); |
1da177e4 LT |
3658 | |
3659 | raw_mbox[0] = BIOS_PVT_DATA; | |
3660 | raw_mbox[2] = GET_BIOS_PVT_DATA; | |
3661 | ||
3662 | memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE); | |
3663 | ||
315d049a | 3664 | mbox.xferaddr = (u32)adapter->buf_dma_handle; |
1da177e4 LT |
3665 | |
3666 | adapter->boot_ldrv_enabled = 0; | |
3667 | adapter->boot_ldrv = 0; | |
3668 | ||
3669 | adapter->boot_pdrv_enabled = 0; | |
3670 | adapter->boot_pdrv_ch = 0; | |
3671 | adapter->boot_pdrv_tgt = 0; | |
3672 | ||
3673 | if(issue_scb_block(adapter, raw_mbox) == 0) { | |
3674 | prv_bios_data = | |
3675 | (struct private_bios_data *)adapter->mega_buffer; | |
3676 | ||
3677 | cksum = 0; | |
3678 | cksum_p = (char *)prv_bios_data; | |
3679 | for (i = 0; i < 14; i++ ) { | |
3680 | cksum += (u16)(*cksum_p++); | |
3681 | } | |
3682 | ||
3683 | if (prv_bios_data->cksum == (u16)(0-cksum) ) { | |
3684 | ||
3685 | /* | |
3686 | * If MSB is set, a physical drive is set as boot | |
3687 | * device | |
3688 | */ | |
3689 | if( prv_bios_data->boot_drv & 0x80 ) { | |
3690 | adapter->boot_pdrv_enabled = 1; | |
3691 | boot_pdrv = prv_bios_data->boot_drv & 0x7F; | |
3692 | adapter->boot_pdrv_ch = boot_pdrv / 16; | |
3693 | adapter->boot_pdrv_tgt = boot_pdrv % 16; | |
3694 | } | |
3695 | else { | |
3696 | adapter->boot_ldrv_enabled = 1; | |
3697 | adapter->boot_ldrv = prv_bios_data->boot_drv; | |
3698 | } | |
3699 | } | |
3700 | } | |
3701 | ||
3702 | } | |
3703 | ||
3704 | /** | |
3705 | * mega_support_random_del() | |
2b46e5c1 | 3706 | * @adapter: pointer to our soft state |
1da177e4 LT |
3707 | * |
3708 | * Find out if this controller supports random deletion and addition of | |
3709 | * logical drives | |
3710 | */ | |
3711 | static int | |
3712 | mega_support_random_del(adapter_t *adapter) | |
3713 | { | |
315d049a KC |
3714 | struct mbox_out mbox; |
3715 | unsigned char *raw_mbox = (u8 *)&mbox; | |
1da177e4 LT |
3716 | int rval; |
3717 | ||
315d049a | 3718 | memset(&mbox, 0, sizeof(mbox)); |
1da177e4 LT |
3719 | |
3720 | /* | |
3721 | * issue command | |
3722 | */ | |
3723 | raw_mbox[0] = FC_DEL_LOGDRV; | |
3724 | raw_mbox[2] = OP_SUP_DEL_LOGDRV; | |
3725 | ||
3726 | rval = issue_scb_block(adapter, raw_mbox); | |
3727 | ||
3728 | return !rval; | |
3729 | } | |
3730 | ||
3731 | ||
3732 | /** | |
3733 | * mega_support_ext_cdb() | |
2b46e5c1 | 3734 | * @adapter: pointer to our soft state |
1da177e4 LT |
3735 | * |
3736 | * Find out if this firmware support cdblen > 10 | |
3737 | */ | |
3738 | static int | |
3739 | mega_support_ext_cdb(adapter_t *adapter) | |
3740 | { | |
315d049a KC |
3741 | struct mbox_out mbox; |
3742 | unsigned char *raw_mbox = (u8 *)&mbox; | |
1da177e4 LT |
3743 | int rval; |
3744 | ||
315d049a | 3745 | memset(&mbox, 0, sizeof(mbox)); |
1da177e4 LT |
3746 | /* |
3747 | * issue command to find out if controller supports extended CDBs. | |
3748 | */ | |
3749 | raw_mbox[0] = 0xA4; | |
3750 | raw_mbox[2] = 0x16; | |
3751 | ||
3752 | rval = issue_scb_block(adapter, raw_mbox); | |
3753 | ||
3754 | return !rval; | |
3755 | } | |
3756 | ||
3757 | ||
3758 | /** | |
3759 | * mega_del_logdrv() | |
2b46e5c1 DLM |
3760 | * @adapter: pointer to our soft state |
3761 | * @logdrv: logical drive to be deleted | |
1da177e4 LT |
3762 | * |
3763 | * Delete the specified logical drive. It is the responsibility of the user | |
3764 | * app to let the OS know about this operation. | |
3765 | */ | |
3766 | static int | |
3767 | mega_del_logdrv(adapter_t *adapter, int logdrv) | |
3768 | { | |
3769 | unsigned long flags; | |
3770 | scb_t *scb; | |
3771 | int rval; | |
3772 | ||
3773 | /* | |
3774 | * Stop sending commands to the controller, queue them internally. | |
3775 | * When deletion is complete, ISR will flush the queue. | |
3776 | */ | |
3777 | atomic_set(&adapter->quiescent, 1); | |
3778 | ||
3779 | /* | |
3780 | * Wait till all the issued commands are complete and there are no | |
3781 | * commands in the pending queue | |
3782 | */ | |
3783 | while (atomic_read(&adapter->pend_cmds) > 0 || | |
3784 | !list_empty(&adapter->pending_list)) | |
3785 | msleep(1000); /* sleep for 1s */ | |
3786 | ||
3787 | rval = mega_do_del_logdrv(adapter, logdrv); | |
3788 | ||
3789 | spin_lock_irqsave(&adapter->lock, flags); | |
3790 | ||
3791 | /* | |
3792 | * If delete operation was successful, add 0x80 to the logical drive | |
3793 | * ids for commands in the pending queue. | |
3794 | */ | |
3795 | if (adapter->read_ldidmap) { | |
3796 | struct list_head *pos; | |
3797 | list_for_each(pos, &adapter->pending_list) { | |
3798 | scb = list_entry(pos, scb_t, list); | |
3799 | if (scb->pthru->logdrv < 0x80 ) | |
3800 | scb->pthru->logdrv += 0x80; | |
3801 | } | |
3802 | } | |
3803 | ||
3804 | atomic_set(&adapter->quiescent, 0); | |
3805 | ||
3806 | mega_runpendq(adapter); | |
3807 | ||
3808 | spin_unlock_irqrestore(&adapter->lock, flags); | |
3809 | ||
3810 | return rval; | |
3811 | } | |
3812 | ||
3813 | ||
3814 | static int | |
3815 | mega_do_del_logdrv(adapter_t *adapter, int logdrv) | |
3816 | { | |
3817 | megacmd_t mc; | |
3818 | int rval; | |
3819 | ||
3820 | memset( &mc, 0, sizeof(megacmd_t)); | |
3821 | ||
3822 | mc.cmd = FC_DEL_LOGDRV; | |
3823 | mc.opcode = OP_DEL_LOGDRV; | |
3824 | mc.subopcode = logdrv; | |
3825 | ||
cb0258a2 | 3826 | rval = mega_internal_command(adapter, &mc, NULL); |
1da177e4 LT |
3827 | |
3828 | /* log this event */ | |
3829 | if(rval) { | |
3b8a1ba3 | 3830 | dev_warn(&adapter->dev->dev, "Delete LD-%d failed", logdrv); |
1da177e4 LT |
3831 | return rval; |
3832 | } | |
3833 | ||
3834 | /* | |
3835 | * After deleting first logical drive, the logical drives must be | |
3836 | * addressed by adding 0x80 to the logical drive id. | |
3837 | */ | |
3838 | adapter->read_ldidmap = 1; | |
3839 | ||
3840 | return rval; | |
3841 | } | |
3842 | ||
3843 | ||
3844 | /** | |
3845 | * mega_get_max_sgl() | |
2b46e5c1 | 3846 | * @adapter: pointer to our soft state |
1da177e4 LT |
3847 | * |
3848 | * Find out the maximum number of scatter-gather elements supported by this | |
3849 | * version of the firmware | |
3850 | */ | |
3851 | static void | |
3852 | mega_get_max_sgl(adapter_t *adapter) | |
3853 | { | |
315d049a KC |
3854 | struct mbox_out mbox; |
3855 | unsigned char *raw_mbox = (u8 *)&mbox; | |
1da177e4 | 3856 | |
315d049a | 3857 | memset(&mbox, 0, sizeof(mbox)); |
1da177e4 LT |
3858 | |
3859 | memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE); | |
3860 | ||
315d049a | 3861 | mbox.xferaddr = (u32)adapter->buf_dma_handle; |
1da177e4 LT |
3862 | |
3863 | raw_mbox[0] = MAIN_MISC_OPCODE; | |
3864 | raw_mbox[2] = GET_MAX_SG_SUPPORT; | |
3865 | ||
3866 | ||
3867 | if( issue_scb_block(adapter, raw_mbox) ) { | |
3868 | /* | |
3869 | * f/w does not support this command. Choose the default value | |
3870 | */ | |
3871 | adapter->sglen = MIN_SGLIST; | |
3872 | } | |
3873 | else { | |
3874 | adapter->sglen = *((char *)adapter->mega_buffer); | |
315d049a | 3875 | |
1da177e4 LT |
3876 | /* |
3877 | * Make sure this is not more than the resources we are | |
3878 | * planning to allocate | |
3879 | */ | |
3880 | if ( adapter->sglen > MAX_SGLIST ) | |
3881 | adapter->sglen = MAX_SGLIST; | |
3882 | } | |
3883 | ||
3884 | return; | |
3885 | } | |
3886 | ||
3887 | ||
3888 | /** | |
3889 | * mega_support_cluster() | |
2b46e5c1 | 3890 | * @adapter: pointer to our soft state |
1da177e4 LT |
3891 | * |
3892 | * Find out if this firmware support cluster calls. | |
3893 | */ | |
3894 | static int | |
3895 | mega_support_cluster(adapter_t *adapter) | |
3896 | { | |
315d049a KC |
3897 | struct mbox_out mbox; |
3898 | unsigned char *raw_mbox = (u8 *)&mbox; | |
1da177e4 | 3899 | |
315d049a | 3900 | memset(&mbox, 0, sizeof(mbox)); |
1da177e4 LT |
3901 | |
3902 | memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE); | |
3903 | ||
315d049a | 3904 | mbox.xferaddr = (u32)adapter->buf_dma_handle; |
1da177e4 LT |
3905 | |
3906 | /* | |
3907 | * Try to get the initiator id. This command will succeed iff the | |
3908 | * clustering is available on this HBA. | |
3909 | */ | |
3910 | raw_mbox[0] = MEGA_GET_TARGET_ID; | |
3911 | ||
3912 | if( issue_scb_block(adapter, raw_mbox) == 0 ) { | |
3913 | ||
3914 | /* | |
3915 | * Cluster support available. Get the initiator target id. | |
3916 | * Tell our id to mid-layer too. | |
3917 | */ | |
3918 | adapter->this_id = *(u32 *)adapter->mega_buffer; | |
3919 | adapter->host->this_id = adapter->this_id; | |
3920 | ||
3921 | return 1; | |
3922 | } | |
3923 | ||
3924 | return 0; | |
3925 | } | |
3926 | ||
84a3c97b | 3927 | #ifdef CONFIG_PROC_FS |
1da177e4 LT |
3928 | /** |
3929 | * mega_adapinq() | |
2b46e5c1 DLM |
3930 | * @adapter: pointer to our soft state |
3931 | * @dma_handle: DMA address of the buffer | |
1da177e4 | 3932 | * |
8e572bab | 3933 | * Issue internal commands while interrupts are available. |
1da177e4 LT |
3934 | * We only issue direct mailbox commands from within the driver. ioctl() |
3935 | * interface using these routines can issue passthru commands. | |
3936 | */ | |
3937 | static int | |
3938 | mega_adapinq(adapter_t *adapter, dma_addr_t dma_handle) | |
3939 | { | |
3940 | megacmd_t mc; | |
3941 | ||
3942 | memset(&mc, 0, sizeof(megacmd_t)); | |
3943 | ||
3944 | if( adapter->flag & BOARD_40LD ) { | |
3945 | mc.cmd = FC_NEW_CONFIG; | |
3946 | mc.opcode = NC_SUBOP_ENQUIRY3; | |
3947 | mc.subopcode = ENQ3_GET_SOLICITED_FULL; | |
3948 | } | |
3949 | else { | |
3950 | mc.cmd = MEGA_MBOXCMD_ADPEXTINQ; | |
3951 | } | |
3952 | ||
3953 | mc.xferaddr = (u32)dma_handle; | |
3954 | ||
cb0258a2 | 3955 | if ( mega_internal_command(adapter, &mc, NULL) != 0 ) { |
1da177e4 LT |
3956 | return -1; |
3957 | } | |
3958 | ||
3959 | return 0; | |
3960 | } | |
3961 | ||
3962 | ||
2b46e5c1 DLM |
3963 | /** |
3964 | * mega_internal_dev_inquiry() | |
3965 | * @adapter: pointer to our soft state | |
3966 | * @ch: channel for this device | |
3967 | * @tgt: ID of this device | |
3968 | * @buf_dma_handle: DMA address of the buffer | |
1da177e4 LT |
3969 | * |
3970 | * Issue the scsi inquiry for the specified device. | |
3971 | */ | |
3972 | static int | |
3973 | mega_internal_dev_inquiry(adapter_t *adapter, u8 ch, u8 tgt, | |
3974 | dma_addr_t buf_dma_handle) | |
3975 | { | |
3976 | mega_passthru *pthru; | |
3977 | dma_addr_t pthru_dma_handle; | |
3978 | megacmd_t mc; | |
3979 | int rval; | |
3980 | struct pci_dev *pdev; | |
3981 | ||
3982 | ||
3983 | /* | |
3984 | * For all internal commands, the buffer must be allocated in <4GB | |
3985 | * address range | |
3986 | */ | |
3987 | if( make_local_pdev(adapter, &pdev) != 0 ) return -1; | |
3988 | ||
ec090ef8 SU |
3989 | pthru = dma_alloc_coherent(&pdev->dev, sizeof(mega_passthru), |
3990 | &pthru_dma_handle, GFP_KERNEL); | |
1da177e4 LT |
3991 | |
3992 | if( pthru == NULL ) { | |
3993 | free_local_pdev(pdev); | |
3994 | return -1; | |
3995 | } | |
3996 | ||
3997 | pthru->timeout = 2; | |
3998 | pthru->ars = 1; | |
3999 | pthru->reqsenselen = 14; | |
4000 | pthru->islogical = 0; | |
4001 | ||
4002 | pthru->channel = (adapter->flag & BOARD_40LD) ? 0 : ch; | |
4003 | ||
4004 | pthru->target = (adapter->flag & BOARD_40LD) ? (ch << 4)|tgt : tgt; | |
4005 | ||
4006 | pthru->cdblen = 6; | |
4007 | ||
4008 | pthru->cdb[0] = INQUIRY; | |
4009 | pthru->cdb[1] = 0; | |
4010 | pthru->cdb[2] = 0; | |
4011 | pthru->cdb[3] = 0; | |
4012 | pthru->cdb[4] = 255; | |
4013 | pthru->cdb[5] = 0; | |
4014 | ||
4015 | ||
4016 | pthru->dataxferaddr = (u32)buf_dma_handle; | |
4017 | pthru->dataxferlen = 256; | |
4018 | ||
4019 | memset(&mc, 0, sizeof(megacmd_t)); | |
4020 | ||
4021 | mc.cmd = MEGA_MBOXCMD_PASSTHRU; | |
4022 | mc.xferaddr = (u32)pthru_dma_handle; | |
4023 | ||
cb0258a2 | 4024 | rval = mega_internal_command(adapter, &mc, pthru); |
1da177e4 | 4025 | |
ec090ef8 SU |
4026 | dma_free_coherent(&pdev->dev, sizeof(mega_passthru), pthru, |
4027 | pthru_dma_handle); | |
1da177e4 LT |
4028 | |
4029 | free_local_pdev(pdev); | |
4030 | ||
4031 | return rval; | |
4032 | } | |
84a3c97b | 4033 | #endif |
1da177e4 LT |
4034 | |
4035 | /** | |
4036 | * mega_internal_command() | |
2b46e5c1 DLM |
4037 | * @adapter: pointer to our soft state |
4038 | * @mc: the mailbox command | |
4039 | * @pthru: Passthru structure for DCDB commands | |
1da177e4 LT |
4040 | * |
4041 | * Issue the internal commands in interrupt mode. | |
4042 | * The last argument is the address of the passthru structure if the command | |
4043 | * to be fired is a passthru command | |
4044 | * | |
1da177e4 LT |
4045 | * Note: parameter 'pthru' is null for non-passthru commands. |
4046 | */ | |
4047 | static int | |
cb0258a2 | 4048 | mega_internal_command(adapter_t *adapter, megacmd_t *mc, mega_passthru *pthru) |
1da177e4 | 4049 | { |
0f2bb84d | 4050 | unsigned long flags; |
1da177e4 LT |
4051 | scb_t *scb; |
4052 | int rval; | |
4053 | ||
4054 | /* | |
4055 | * The internal commands share one command id and hence are | |
4056 | * serialized. This is so because we want to reserve maximum number of | |
4057 | * available command ids for the I/O commands. | |
4058 | */ | |
0b950672 | 4059 | mutex_lock(&adapter->int_mtx); |
1da177e4 LT |
4060 | |
4061 | scb = &adapter->int_scb; | |
4062 | memset(scb, 0, sizeof(scb_t)); | |
4063 | ||
0f2bb84d CH |
4064 | scb->idx = CMDID_INT_CMDS; |
4065 | scb->state |= SCB_ACTIVE | SCB_PENDQ; | |
1da177e4 LT |
4066 | |
4067 | memcpy(scb->raw_mbox, mc, sizeof(megacmd_t)); | |
4068 | ||
4069 | /* | |
4070 | * Is it a passthru command | |
4071 | */ | |
0f2bb84d | 4072 | if (mc->cmd == MEGA_MBOXCMD_PASSTHRU) |
1da177e4 | 4073 | scb->pthru = pthru; |
1da177e4 | 4074 | |
0f2bb84d CH |
4075 | spin_lock_irqsave(&adapter->lock, flags); |
4076 | list_add_tail(&scb->list, &adapter->pending_list); | |
4077 | /* | |
4078 | * Check if the HBA is in quiescent state, e.g., during a | |
4079 | * delete logical drive opertion. If it is, don't run | |
4080 | * the pending_list. | |
4081 | */ | |
4082 | if (atomic_read(&adapter->quiescent) == 0) | |
4083 | mega_runpendq(adapter); | |
4084 | spin_unlock_irqrestore(&adapter->lock, flags); | |
1da177e4 | 4085 | |
8d115f84 | 4086 | wait_for_completion(&adapter->int_waitq); |
1da177e4 | 4087 | |
0f2bb84d | 4088 | mc->status = rval = adapter->int_status; |
1da177e4 LT |
4089 | |
4090 | /* | |
4091 | * Print a debug message for all failed commands. Applications can use | |
4092 | * this information. | |
4093 | */ | |
0f2bb84d | 4094 | if (rval && trace_level) { |
3b8a1ba3 | 4095 | dev_info(&adapter->dev->dev, "cmd [%x, %x, %x] status:[%x]\n", |
0f2bb84d | 4096 | mc->cmd, mc->opcode, mc->subopcode, rval); |
1da177e4 LT |
4097 | } |
4098 | ||
0b950672 | 4099 | mutex_unlock(&adapter->int_mtx); |
1da177e4 LT |
4100 | return rval; |
4101 | } | |
4102 | ||
1da177e4 LT |
4103 | static struct scsi_host_template megaraid_template = { |
4104 | .module = THIS_MODULE, | |
4105 | .name = "MegaRAID", | |
3492b328 | 4106 | .proc_name = "megaraid_legacy", |
1da177e4 LT |
4107 | .info = megaraid_info, |
4108 | .queuecommand = megaraid_queue, | |
4109 | .bios_param = megaraid_biosparam, | |
4110 | .max_sectors = MAX_SECTORS_PER_IO, | |
4111 | .can_queue = MAX_COMMANDS, | |
4112 | .this_id = DEFAULT_INITIATOR_ID, | |
4113 | .sg_tablesize = MAX_SGLIST, | |
4114 | .cmd_per_lun = DEF_CMD_PER_LUN, | |
1da177e4 LT |
4115 | .eh_abort_handler = megaraid_abort, |
4116 | .eh_device_reset_handler = megaraid_reset, | |
4117 | .eh_bus_reset_handler = megaraid_reset, | |
4118 | .eh_host_reset_handler = megaraid_reset, | |
54b2b50c | 4119 | .no_write_same = 1, |
fb597392 | 4120 | .cmd_size = sizeof(struct megaraid_cmd_priv), |
1da177e4 LT |
4121 | }; |
4122 | ||
6f039790 | 4123 | static int |
1da177e4 LT |
4124 | megaraid_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) |
4125 | { | |
4126 | struct Scsi_Host *host; | |
4127 | adapter_t *adapter; | |
4128 | unsigned long mega_baseport, tbase, flag = 0; | |
4129 | u16 subsysid, subsysvid; | |
4130 | u8 pci_bus, pci_dev_func; | |
4131 | int irq, i, j; | |
4132 | int error = -ENODEV; | |
4133 | ||
27e833da DC |
4134 | if (hba_count >= MAX_CONTROLLERS) |
4135 | goto out; | |
4136 | ||
1da177e4 LT |
4137 | if (pci_enable_device(pdev)) |
4138 | goto out; | |
4139 | pci_set_master(pdev); | |
4140 | ||
4141 | pci_bus = pdev->bus->number; | |
4142 | pci_dev_func = pdev->devfn; | |
4143 | ||
4144 | /* | |
4145 | * The megaraid3 stuff reports the ID of the Intel part which is not | |
4146 | * remotely specific to the megaraid | |
4147 | */ | |
4148 | if (pdev->vendor == PCI_VENDOR_ID_INTEL) { | |
4149 | u16 magic; | |
4150 | /* | |
4151 | * Don't fall over the Compaq management cards using the same | |
4152 | * PCI identifier | |
4153 | */ | |
4154 | if (pdev->subsystem_vendor == PCI_VENDOR_ID_COMPAQ && | |
4155 | pdev->subsystem_device == 0xC000) | |
70054aa3 | 4156 | goto out_disable_device; |
1da177e4 LT |
4157 | /* Now check the magic signature byte */ |
4158 | pci_read_config_word(pdev, PCI_CONF_AMISIG, &magic); | |
4159 | if (magic != HBA_SIGNATURE_471 && magic != HBA_SIGNATURE) | |
70054aa3 | 4160 | goto out_disable_device; |
1da177e4 LT |
4161 | /* Ok it is probably a megaraid */ |
4162 | } | |
4163 | ||
4164 | /* | |
4165 | * For these vendor and device ids, signature offsets are not | |
4166 | * valid and 64 bit is implicit | |
4167 | */ | |
4168 | if (id->driver_data & BOARD_64BIT) | |
4169 | flag |= BOARD_64BIT; | |
4170 | else { | |
4171 | u32 magic64; | |
4172 | ||
4173 | pci_read_config_dword(pdev, PCI_CONF_AMISIG64, &magic64); | |
4174 | if (magic64 == HBA_SIGNATURE_64BIT) | |
4175 | flag |= BOARD_64BIT; | |
4176 | } | |
4177 | ||
4178 | subsysvid = pdev->subsystem_vendor; | |
4179 | subsysid = pdev->subsystem_device; | |
4180 | ||
3b8a1ba3 BH |
4181 | dev_notice(&pdev->dev, "found 0x%4.04x:0x%4.04x\n", |
4182 | id->vendor, id->device); | |
1da177e4 LT |
4183 | |
4184 | /* Read the base port and IRQ from PCI */ | |
4185 | mega_baseport = pci_resource_start(pdev, 0); | |
4186 | irq = pdev->irq; | |
4187 | ||
4188 | tbase = mega_baseport; | |
4189 | if (pci_resource_flags(pdev, 0) & IORESOURCE_MEM) { | |
4190 | flag |= BOARD_MEMMAP; | |
4191 | ||
4192 | if (!request_mem_region(mega_baseport, 128, "megaraid")) { | |
3b8a1ba3 | 4193 | dev_warn(&pdev->dev, "mem region busy!\n"); |
1da177e4 LT |
4194 | goto out_disable_device; |
4195 | } | |
4196 | ||
4197 | mega_baseport = (unsigned long)ioremap(mega_baseport, 128); | |
4198 | if (!mega_baseport) { | |
3b8a1ba3 | 4199 | dev_warn(&pdev->dev, "could not map hba memory\n"); |
1da177e4 LT |
4200 | goto out_release_region; |
4201 | } | |
4202 | } else { | |
4203 | flag |= BOARD_IOMAP; | |
4204 | mega_baseport += 0x10; | |
4205 | ||
4206 | if (!request_region(mega_baseport, 16, "megaraid")) | |
4207 | goto out_disable_device; | |
4208 | } | |
4209 | ||
4210 | /* Initialize SCSI Host structure */ | |
4211 | host = scsi_host_alloc(&megaraid_template, sizeof(adapter_t)); | |
4212 | if (!host) | |
4213 | goto out_iounmap; | |
4214 | ||
4215 | adapter = (adapter_t *)host->hostdata; | |
4216 | memset(adapter, 0, sizeof(adapter_t)); | |
4217 | ||
3b8a1ba3 | 4218 | dev_notice(&pdev->dev, |
1da177e4 LT |
4219 | "scsi%d:Found MegaRAID controller at 0x%lx, IRQ:%d\n", |
4220 | host->host_no, mega_baseport, irq); | |
4221 | ||
4222 | adapter->base = mega_baseport; | |
00769ec4 JG |
4223 | if (flag & BOARD_MEMMAP) |
4224 | adapter->mmio_base = (void __iomem *) mega_baseport; | |
1da177e4 LT |
4225 | |
4226 | INIT_LIST_HEAD(&adapter->free_list); | |
4227 | INIT_LIST_HEAD(&adapter->pending_list); | |
4228 | INIT_LIST_HEAD(&adapter->completed_list); | |
4229 | ||
4230 | adapter->flag = flag; | |
4231 | spin_lock_init(&adapter->lock); | |
1da177e4 LT |
4232 | |
4233 | host->cmd_per_lun = max_cmd_per_lun; | |
4234 | host->max_sectors = max_sectors_per_io; | |
4235 | ||
4236 | adapter->dev = pdev; | |
4237 | adapter->host = host; | |
4238 | ||
4239 | adapter->host->irq = irq; | |
4240 | ||
4241 | if (flag & BOARD_MEMMAP) | |
4242 | adapter->host->base = tbase; | |
4243 | else { | |
4244 | adapter->host->io_port = tbase; | |
4245 | adapter->host->n_io_port = 16; | |
4246 | } | |
4247 | ||
4248 | adapter->host->unique_id = (pci_bus << 8) | pci_dev_func; | |
4249 | ||
4250 | /* | |
4251 | * Allocate buffer to issue internal commands. | |
4252 | */ | |
ec090ef8 SU |
4253 | adapter->mega_buffer = dma_alloc_coherent(&adapter->dev->dev, |
4254 | MEGA_BUFFER_SIZE, | |
4255 | &adapter->buf_dma_handle, | |
4256 | GFP_KERNEL); | |
1da177e4 | 4257 | if (!adapter->mega_buffer) { |
3b8a1ba3 | 4258 | dev_warn(&pdev->dev, "out of RAM\n"); |
1da177e4 LT |
4259 | goto out_host_put; |
4260 | } | |
4261 | ||
6da2ec56 KC |
4262 | adapter->scb_list = kmalloc_array(MAX_COMMANDS, sizeof(scb_t), |
4263 | GFP_KERNEL); | |
1da177e4 | 4264 | if (!adapter->scb_list) { |
3b8a1ba3 | 4265 | dev_warn(&pdev->dev, "out of RAM\n"); |
1da177e4 LT |
4266 | goto out_free_cmd_buffer; |
4267 | } | |
4268 | ||
4269 | if (request_irq(irq, (adapter->flag & BOARD_MEMMAP) ? | |
4270 | megaraid_isr_memmapped : megaraid_isr_iomapped, | |
1d6f359a | 4271 | IRQF_SHARED, "megaraid", adapter)) { |
3b8a1ba3 | 4272 | dev_warn(&pdev->dev, "Couldn't register IRQ %d!\n", irq); |
1da177e4 LT |
4273 | goto out_free_scb_list; |
4274 | } | |
4275 | ||
4276 | if (mega_setup_mailbox(adapter)) | |
4277 | goto out_free_irq; | |
4278 | ||
4279 | if (mega_query_adapter(adapter)) | |
4280 | goto out_free_mbox; | |
4281 | ||
4282 | /* | |
4283 | * Have checks for some buggy f/w | |
4284 | */ | |
4285 | if ((subsysid == 0x1111) && (subsysvid == 0x1111)) { | |
4286 | /* | |
4287 | * Which firmware | |
4288 | */ | |
4289 | if (!strcmp(adapter->fw_version, "3.00") || | |
4290 | !strcmp(adapter->fw_version, "3.01")) { | |
4291 | ||
3b8a1ba3 BH |
4292 | dev_warn(&pdev->dev, |
4293 | "Your card is a Dell PERC " | |
4294 | "2/SC RAID controller with " | |
1da177e4 LT |
4295 | "firmware\nmegaraid: 3.00 or 3.01. " |
4296 | "This driver is known to have " | |
4297 | "corruption issues\nmegaraid: with " | |
4298 | "those firmware versions on this " | |
4299 | "specific card. In order\nmegaraid: " | |
4300 | "to protect your data, please upgrade " | |
4301 | "your firmware to version\nmegaraid: " | |
4302 | "3.10 or later, available from the " | |
4303 | "Dell Technical Support web\n" | |
4304 | "megaraid: site at\nhttp://support." | |
4305 | "dell.com/us/en/filelib/download/" | |
4306 | "index.asp?fileid=2940\n" | |
4307 | ); | |
4308 | } | |
4309 | } | |
4310 | ||
4311 | /* | |
4312 | * If we have a HP 1M(0x60E7)/2M(0x60E8) controller with | |
4313 | * firmware H.01.07, H.01.08, and H.01.09 disable 64 bit | |
4314 | * support, since this firmware cannot handle 64 bit | |
4315 | * addressing | |
4316 | */ | |
54ebfd57 | 4317 | if ((subsysvid == PCI_VENDOR_ID_HP) && |
1da177e4 LT |
4318 | ((subsysid == 0x60E7) || (subsysid == 0x60E8))) { |
4319 | /* | |
4320 | * which firmware | |
4321 | */ | |
4322 | if (!strcmp(adapter->fw_version, "H01.07") || | |
4323 | !strcmp(adapter->fw_version, "H01.08") || | |
4324 | !strcmp(adapter->fw_version, "H01.09") ) { | |
3b8a1ba3 BH |
4325 | dev_warn(&pdev->dev, |
4326 | "Firmware H.01.07, " | |
1da177e4 LT |
4327 | "H.01.08, and H.01.09 on 1M/2M " |
4328 | "controllers\n" | |
3b8a1ba3 BH |
4329 | "do not support 64 bit " |
4330 | "addressing.\nDISABLING " | |
1da177e4 LT |
4331 | "64 bit support.\n"); |
4332 | adapter->flag &= ~BOARD_64BIT; | |
4333 | } | |
4334 | } | |
4335 | ||
4336 | if (mega_is_bios_enabled(adapter)) | |
4337 | mega_hbas[hba_count].is_bios_enabled = 1; | |
4338 | mega_hbas[hba_count].hostdata_addr = adapter; | |
4339 | ||
4340 | /* | |
4341 | * Find out which channel is raid and which is scsi. This is | |
4342 | * for ROMB support. | |
4343 | */ | |
4344 | mega_enum_raid_scsi(adapter); | |
4345 | ||
4346 | /* | |
4347 | * Find out if a logical drive is set as the boot drive. If | |
4348 | * there is one, will make that as the first logical drive. | |
4349 | * ROMB: Do we have to boot from a physical drive. Then all | |
4350 | * the physical drives would appear before the logical disks. | |
4351 | * Else, all the physical drives would be exported to the mid | |
4352 | * layer after logical drives. | |
4353 | */ | |
4354 | mega_get_boot_drv(adapter); | |
4355 | ||
4356 | if (adapter->boot_pdrv_enabled) { | |
4357 | j = adapter->product_info.nchannels; | |
4358 | for( i = 0; i < j; i++ ) | |
4359 | adapter->logdrv_chan[i] = 0; | |
4360 | for( i = j; i < NVIRT_CHAN + j; i++ ) | |
4361 | adapter->logdrv_chan[i] = 1; | |
4362 | } else { | |
4363 | for (i = 0; i < NVIRT_CHAN; i++) | |
4364 | adapter->logdrv_chan[i] = 1; | |
4365 | for (i = NVIRT_CHAN; i < MAX_CHANNELS+NVIRT_CHAN; i++) | |
4366 | adapter->logdrv_chan[i] = 0; | |
4367 | adapter->mega_ch_class <<= NVIRT_CHAN; | |
4368 | } | |
4369 | ||
4370 | /* | |
4371 | * Do we support random deletion and addition of logical | |
4372 | * drives | |
4373 | */ | |
4374 | adapter->read_ldidmap = 0; /* set it after first logdrv | |
4375 | delete cmd */ | |
4376 | adapter->support_random_del = mega_support_random_del(adapter); | |
4377 | ||
4378 | /* Initialize SCBs */ | |
4379 | if (mega_init_scb(adapter)) | |
4380 | goto out_free_mbox; | |
4381 | ||
4382 | /* | |
4383 | * Reset the pending commands counter | |
4384 | */ | |
4385 | atomic_set(&adapter->pend_cmds, 0); | |
4386 | ||
4387 | /* | |
4388 | * Reset the adapter quiescent flag | |
4389 | */ | |
4390 | atomic_set(&adapter->quiescent, 0); | |
4391 | ||
4392 | hba_soft_state[hba_count] = adapter; | |
4393 | ||
4394 | /* | |
4395 | * Fill in the structure which needs to be passed back to the | |
4396 | * application when it does an ioctl() for controller related | |
4397 | * information. | |
4398 | */ | |
4399 | i = hba_count; | |
4400 | ||
4401 | mcontroller[i].base = mega_baseport; | |
4402 | mcontroller[i].irq = irq; | |
4403 | mcontroller[i].numldrv = adapter->numldrv; | |
4404 | mcontroller[i].pcibus = pci_bus; | |
4405 | mcontroller[i].pcidev = id->device; | |
4406 | mcontroller[i].pcifun = PCI_FUNC (pci_dev_func); | |
4407 | mcontroller[i].pciid = -1; | |
4408 | mcontroller[i].pcivendor = id->vendor; | |
4409 | mcontroller[i].pcislot = PCI_SLOT(pci_dev_func); | |
4410 | mcontroller[i].uid = (pci_bus << 8) | pci_dev_func; | |
4411 | ||
4412 | ||
4413 | /* Set the Mode of addressing to 64 bit if we can */ | |
4414 | if ((adapter->flag & BOARD_64BIT) && (sizeof(dma_addr_t) == 8)) { | |
ec090ef8 | 4415 | dma_set_mask(&pdev->dev, DMA_BIT_MASK(64)); |
1da177e4 LT |
4416 | adapter->has_64bit_addr = 1; |
4417 | } else { | |
ec090ef8 | 4418 | dma_set_mask(&pdev->dev, DMA_BIT_MASK(32)); |
1da177e4 LT |
4419 | adapter->has_64bit_addr = 0; |
4420 | } | |
4421 | ||
0b950672 | 4422 | mutex_init(&adapter->int_mtx); |
8d115f84 | 4423 | init_completion(&adapter->int_waitq); |
1da177e4 LT |
4424 | |
4425 | adapter->this_id = DEFAULT_INITIATOR_ID; | |
4426 | adapter->host->this_id = DEFAULT_INITIATOR_ID; | |
4427 | ||
4428 | #if MEGA_HAVE_CLUSTERING | |
4429 | /* | |
4430 | * Is cluster support enabled on this controller | |
4431 | * Note: In a cluster the HBAs ( the initiators ) will have | |
4432 | * different target IDs and we cannot assume it to be 7. Call | |
4433 | * to mega_support_cluster() will get the target ids also if | |
4434 | * the cluster support is available | |
4435 | */ | |
4436 | adapter->has_cluster = mega_support_cluster(adapter); | |
4437 | if (adapter->has_cluster) { | |
3b8a1ba3 BH |
4438 | dev_notice(&pdev->dev, |
4439 | "Cluster driver, initiator id:%d\n", | |
1da177e4 LT |
4440 | adapter->this_id); |
4441 | } | |
4442 | #endif | |
4443 | ||
4444 | pci_set_drvdata(pdev, host); | |
4445 | ||
4446 | mega_create_proc_entry(hba_count, mega_proc_dir_entry); | |
4447 | ||
4448 | error = scsi_add_host(host, &pdev->dev); | |
4449 | if (error) | |
4450 | goto out_free_mbox; | |
4451 | ||
4452 | scsi_scan_host(host); | |
4453 | hba_count++; | |
4454 | return 0; | |
4455 | ||
4456 | out_free_mbox: | |
ec090ef8 SU |
4457 | dma_free_coherent(&adapter->dev->dev, sizeof(mbox64_t), |
4458 | adapter->una_mbox64, adapter->una_mbox64_dma); | |
1da177e4 LT |
4459 | out_free_irq: |
4460 | free_irq(adapter->host->irq, adapter); | |
4461 | out_free_scb_list: | |
4462 | kfree(adapter->scb_list); | |
4463 | out_free_cmd_buffer: | |
ec090ef8 SU |
4464 | dma_free_coherent(&adapter->dev->dev, MEGA_BUFFER_SIZE, |
4465 | adapter->mega_buffer, adapter->buf_dma_handle); | |
1da177e4 LT |
4466 | out_host_put: |
4467 | scsi_host_put(host); | |
4468 | out_iounmap: | |
4469 | if (flag & BOARD_MEMMAP) | |
4470 | iounmap((void *)mega_baseport); | |
4471 | out_release_region: | |
4472 | if (flag & BOARD_MEMMAP) | |
4473 | release_mem_region(tbase, 128); | |
4474 | else | |
4475 | release_region(mega_baseport, 16); | |
4476 | out_disable_device: | |
4477 | pci_disable_device(pdev); | |
4478 | out: | |
4479 | return error; | |
4480 | } | |
4481 | ||
4482 | static void | |
4483 | __megaraid_shutdown(adapter_t *adapter) | |
4484 | { | |
4485 | u_char raw_mbox[sizeof(struct mbox_out)]; | |
4486 | mbox_t *mbox = (mbox_t *)raw_mbox; | |
4487 | int i; | |
4488 | ||
4489 | /* Flush adapter cache */ | |
4490 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); | |
4491 | raw_mbox[0] = FLUSH_ADAPTER; | |
4492 | ||
4493 | free_irq(adapter->host->irq, adapter); | |
4494 | ||
4495 | /* Issue a blocking (interrupts disabled) command to the card */ | |
4496 | issue_scb_block(adapter, raw_mbox); | |
4497 | ||
4498 | /* Flush disks cache */ | |
4499 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); | |
4500 | raw_mbox[0] = FLUSH_SYSTEM; | |
4501 | ||
4502 | /* Issue a blocking (interrupts disabled) command to the card */ | |
4503 | issue_scb_block(adapter, raw_mbox); | |
4504 | ||
4505 | if (atomic_read(&adapter->pend_cmds) > 0) | |
3b8a1ba3 | 4506 | dev_warn(&adapter->dev->dev, "pending commands!!\n"); |
1da177e4 LT |
4507 | |
4508 | /* | |
4509 | * Have a delibrate delay to make sure all the caches are | |
4510 | * actually flushed. | |
4511 | */ | |
4512 | for (i = 0; i <= 10; i++) | |
4513 | mdelay(1000); | |
4514 | } | |
4515 | ||
6f039790 | 4516 | static void |
1da177e4 LT |
4517 | megaraid_remove_one(struct pci_dev *pdev) |
4518 | { | |
4519 | struct Scsi_Host *host = pci_get_drvdata(pdev); | |
4520 | adapter_t *adapter = (adapter_t *)host->hostdata; | |
f7680bec | 4521 | char buf[12] = { 0 }; |
1da177e4 LT |
4522 | |
4523 | scsi_remove_host(host); | |
4524 | ||
4525 | __megaraid_shutdown(adapter); | |
4526 | ||
4527 | /* Free our resources */ | |
4528 | if (adapter->flag & BOARD_MEMMAP) { | |
4529 | iounmap((void *)adapter->base); | |
4530 | release_mem_region(adapter->host->base, 128); | |
4531 | } else | |
4532 | release_region(adapter->base, 16); | |
4533 | ||
4534 | mega_free_sgl(adapter); | |
4535 | ||
f7680bec CH |
4536 | sprintf(buf, "hba%d", adapter->host->host_no); |
4537 | remove_proc_subtree(buf, mega_proc_dir_entry); | |
1da177e4 | 4538 | |
ec090ef8 SU |
4539 | dma_free_coherent(&adapter->dev->dev, MEGA_BUFFER_SIZE, |
4540 | adapter->mega_buffer, adapter->buf_dma_handle); | |
1da177e4 | 4541 | kfree(adapter->scb_list); |
ec090ef8 SU |
4542 | dma_free_coherent(&adapter->dev->dev, sizeof(mbox64_t), |
4543 | adapter->una_mbox64, adapter->una_mbox64_dma); | |
1da177e4 LT |
4544 | |
4545 | scsi_host_put(host); | |
4546 | pci_disable_device(pdev); | |
4547 | ||
4548 | hba_count--; | |
4549 | } | |
4550 | ||
4551 | static void | |
d18c3db5 | 4552 | megaraid_shutdown(struct pci_dev *pdev) |
1da177e4 | 4553 | { |
d18c3db5 | 4554 | struct Scsi_Host *host = pci_get_drvdata(pdev); |
1da177e4 LT |
4555 | adapter_t *adapter = (adapter_t *)host->hostdata; |
4556 | ||
4557 | __megaraid_shutdown(adapter); | |
4558 | } | |
4559 | ||
4560 | static struct pci_device_id megaraid_pci_tbl[] = { | |
1da177e4 LT |
4561 | {PCI_VENDOR_ID_AMI, PCI_DEVICE_ID_AMI_MEGARAID, |
4562 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, | |
4563 | {PCI_VENDOR_ID_AMI, PCI_DEVICE_ID_AMI_MEGARAID2, | |
4564 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, | |
1da177e4 LT |
4565 | {PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_AMI_MEGARAID3, |
4566 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, | |
1da177e4 LT |
4567 | {0,} |
4568 | }; | |
4569 | MODULE_DEVICE_TABLE(pci, megaraid_pci_tbl); | |
4570 | ||
4571 | static struct pci_driver megaraid_pci_driver = { | |
3542adcb | 4572 | .name = "megaraid_legacy", |
1da177e4 LT |
4573 | .id_table = megaraid_pci_tbl, |
4574 | .probe = megaraid_probe_one, | |
6f039790 | 4575 | .remove = megaraid_remove_one, |
d18c3db5 | 4576 | .shutdown = megaraid_shutdown, |
1da177e4 LT |
4577 | }; |
4578 | ||
4579 | static int __init megaraid_init(void) | |
4580 | { | |
4581 | int error; | |
4582 | ||
4583 | if ((max_cmd_per_lun <= 0) || (max_cmd_per_lun > MAX_CMD_PER_LUN)) | |
4584 | max_cmd_per_lun = MAX_CMD_PER_LUN; | |
4585 | if (max_mbox_busy_wait > MBOX_BUSY_WAIT) | |
4586 | max_mbox_busy_wait = MBOX_BUSY_WAIT; | |
4587 | ||
4588 | #ifdef CONFIG_PROC_FS | |
c74c120a | 4589 | mega_proc_dir_entry = proc_mkdir("megaraid", NULL); |
1da177e4 LT |
4590 | if (!mega_proc_dir_entry) { |
4591 | printk(KERN_WARNING | |
4592 | "megaraid: failed to create megaraid root\n"); | |
4593 | } | |
4594 | #endif | |
4520b008 | 4595 | error = pci_register_driver(&megaraid_pci_driver); |
1da177e4 LT |
4596 | if (error) { |
4597 | #ifdef CONFIG_PROC_FS | |
c74c120a | 4598 | remove_proc_entry("megaraid", NULL); |
1da177e4 LT |
4599 | #endif |
4600 | return error; | |
4601 | } | |
4602 | ||
4603 | /* | |
4604 | * Register the driver as a character device, for applications | |
4605 | * to access it for ioctls. | |
4606 | * First argument (major) to register_chrdev implies a dynamic | |
4607 | * major number allocation. | |
4608 | */ | |
3492b328 | 4609 | major = register_chrdev(0, "megadev_legacy", &megadev_fops); |
c5acd61d | 4610 | if (major < 0) { |
1da177e4 LT |
4611 | printk(KERN_WARNING |
4612 | "megaraid: failed to register char device\n"); | |
4613 | } | |
4614 | ||
4615 | return 0; | |
4616 | } | |
4617 | ||
4618 | static void __exit megaraid_exit(void) | |
4619 | { | |
4620 | /* | |
4621 | * Unregister the character device interface to the driver. | |
4622 | */ | |
3492b328 | 4623 | unregister_chrdev(major, "megadev_legacy"); |
1da177e4 LT |
4624 | |
4625 | pci_unregister_driver(&megaraid_pci_driver); | |
4626 | ||
4627 | #ifdef CONFIG_PROC_FS | |
c74c120a | 4628 | remove_proc_entry("megaraid", NULL); |
1da177e4 LT |
4629 | #endif |
4630 | } | |
4631 | ||
4632 | module_init(megaraid_init); | |
4633 | module_exit(megaraid_exit); | |
4634 | ||
4635 | /* vi: set ts=8 sw=8 tw=78: */ |