Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * | |
3 | * Linux MegaRAID device driver | |
4 | * | |
3492b328 | 5 | * Copyright (c) 2002 LSI Logic Corporation. |
1da177e4 LT |
6 | * |
7 | * This program is free software; you can redistribute it and/or | |
8 | * modify it under the terms of the GNU General Public License | |
9 | * as published by the Free Software Foundation; either version | |
10 | * 2 of the License, or (at your option) any later version. | |
11 | * | |
12 | * Copyright (c) 2002 Red Hat, Inc. All rights reserved. | |
13 | * - fixes | |
14 | * - speed-ups (list handling fixes, issued_list, optimizations.) | |
15 | * - lots of cleanups. | |
16 | * | |
17 | * Copyright (c) 2003 Christoph Hellwig <hch@lst.de> | |
18 | * - new-style, hotplug-aware pci probing and scsi registration | |
19 | * | |
3492b328 JS |
20 | * Version : v2.00.4 Mon Nov 14 14:02:43 EST 2005 - Seokmann Ju |
21 | * <Seokmann.Ju@lsil.com> | |
1da177e4 LT |
22 | * |
23 | * Description: Linux device driver for LSI Logic MegaRAID controller | |
24 | * | |
25 | * Supported controllers: MegaRAID 418, 428, 438, 466, 762, 467, 471, 490, 493 | |
26 | * 518, 520, 531, 532 | |
27 | * | |
28 | * This driver is supported by LSI Logic, with assistance from Red Hat, Dell, | |
29 | * and others. Please send updates to the mailing list | |
30 | * linux-scsi@vger.kernel.org . | |
31 | * | |
32 | */ | |
33 | ||
34 | #include <linux/mm.h> | |
35 | #include <linux/fs.h> | |
36 | #include <linux/blkdev.h> | |
37 | #include <asm/uaccess.h> | |
38 | #include <asm/io.h> | |
8d115f84 | 39 | #include <linux/completion.h> |
1da177e4 LT |
40 | #include <linux/delay.h> |
41 | #include <linux/proc_fs.h> | |
42 | #include <linux/reboot.h> | |
43 | #include <linux/module.h> | |
44 | #include <linux/list.h> | |
45 | #include <linux/interrupt.h> | |
46 | #include <linux/pci.h> | |
47 | #include <linux/init.h> | |
910638ae | 48 | #include <linux/dma-mapping.h> |
c45d15d2 | 49 | #include <linux/mutex.h> |
5a0e3ad6 | 50 | #include <linux/slab.h> |
1da177e4 LT |
51 | #include <scsi/scsicam.h> |
52 | ||
53 | #include "scsi.h" | |
54 | #include <scsi/scsi_host.h> | |
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() | |
131 | * @adapter - pointer to our soft state | |
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 | ||
140 | adapter->una_mbox64 = pci_alloc_consistent(adapter->dev, | |
141 | sizeof(mbox64_t), &adapter->una_mbox64_dma); | |
142 | ||
143 | if( !adapter->una_mbox64 ) return -1; | |
144 | ||
145 | adapter->mbox = &adapter->una_mbox64->mbox; | |
146 | ||
147 | adapter->mbox = (mbox_t *)((((unsigned long) adapter->mbox) + 15) & | |
148 | (~0UL ^ 0xFUL)); | |
149 | ||
150 | adapter->mbox64 = (mbox64_t *)(((unsigned long)adapter->mbox) - 8); | |
151 | ||
152 | align = ((void *)adapter->mbox) - ((void *)&adapter->una_mbox64->mbox); | |
153 | ||
154 | adapter->mbox_dma = adapter->una_mbox64_dma + 8 + align; | |
155 | ||
156 | /* | |
157 | * Register the mailbox if the controller is an io-mapped controller | |
158 | */ | |
159 | if( adapter->flag & BOARD_IOMAP ) { | |
160 | ||
7d1abbe8 | 161 | outb(adapter->mbox_dma & 0xFF, |
1da177e4 LT |
162 | adapter->host->io_port + MBOX_PORT0); |
163 | ||
7d1abbe8 | 164 | outb((adapter->mbox_dma >> 8) & 0xFF, |
1da177e4 LT |
165 | adapter->host->io_port + MBOX_PORT1); |
166 | ||
7d1abbe8 | 167 | outb((adapter->mbox_dma >> 16) & 0xFF, |
1da177e4 LT |
168 | adapter->host->io_port + MBOX_PORT2); |
169 | ||
7d1abbe8 | 170 | outb((adapter->mbox_dma >> 24) & 0xFF, |
1da177e4 LT |
171 | adapter->host->io_port + MBOX_PORT3); |
172 | ||
7d1abbe8 | 173 | outb(ENABLE_MBOX_BYTE, |
1da177e4 LT |
174 | adapter->host->io_port + ENABLE_MBOX_REGION); |
175 | ||
176 | irq_ack(adapter); | |
177 | ||
178 | irq_enable(adapter); | |
179 | } | |
180 | ||
181 | return 0; | |
182 | } | |
183 | ||
184 | ||
185 | /* | |
186 | * mega_query_adapter() | |
187 | * @adapter - pointer to our soft state | |
188 | * | |
189 | * Issue the adapter inquiry commands to the controller and find out | |
190 | * information and parameter about the devices attached | |
191 | */ | |
192 | static int | |
193 | mega_query_adapter(adapter_t *adapter) | |
194 | { | |
195 | dma_addr_t prod_info_dma_handle; | |
196 | mega_inquiry3 *inquiry3; | |
197 | u8 raw_mbox[sizeof(struct mbox_out)]; | |
198 | mbox_t *mbox; | |
199 | int retval; | |
200 | ||
201 | /* Initialize adapter inquiry mailbox */ | |
202 | ||
203 | mbox = (mbox_t *)raw_mbox; | |
204 | ||
205 | memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE); | |
206 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); | |
207 | ||
208 | /* | |
209 | * Try to issue Inquiry3 command | |
210 | * if not succeeded, then issue MEGA_MBOXCMD_ADAPTERINQ command and | |
211 | * update enquiry3 structure | |
212 | */ | |
213 | mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle; | |
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 | ||
229 | ext_inq = pci_alloc_consistent(adapter->dev, | |
230 | sizeof(mraid_ext_inquiry), &dma_handle); | |
231 | ||
232 | if( ext_inq == NULL ) return -1; | |
233 | ||
234 | inq = &ext_inq->raid_inq; | |
235 | ||
236 | mbox->m_out.xferaddr = (u32)dma_handle; | |
237 | ||
238 | /*issue old 0x04 command to adapter */ | |
239 | mbox->m_out.cmd = MEGA_MBOXCMD_ADPEXTINQ; | |
240 | ||
241 | issue_scb_block(adapter, raw_mbox); | |
242 | ||
243 | /* | |
244 | * update Enquiry3 and ProductInfo structures with | |
245 | * mraid_inquiry structure | |
246 | */ | |
247 | mega_8_to_40ld(inq, inquiry3, | |
248 | (mega_product_info *)&adapter->product_info); | |
249 | ||
250 | pci_free_consistent(adapter->dev, sizeof(mraid_ext_inquiry), | |
251 | ext_inq, dma_handle); | |
252 | ||
253 | } else { /*adapter supports 40ld */ | |
254 | adapter->flag |= BOARD_40LD; | |
255 | ||
256 | /* | |
257 | * get product_info, which is static information and will be | |
258 | * unchanged | |
259 | */ | |
260 | prod_info_dma_handle = pci_map_single(adapter->dev, (void *) | |
261 | &adapter->product_info, | |
262 | sizeof(mega_product_info), PCI_DMA_FROMDEVICE); | |
263 | ||
264 | mbox->m_out.xferaddr = prod_info_dma_handle; | |
265 | ||
266 | raw_mbox[0] = FC_NEW_CONFIG; /* i.e. mbox->cmd=0xA1 */ | |
267 | raw_mbox[2] = NC_SUBOP_PRODUCT_INFO; /* i.e. 0x0E */ | |
268 | ||
269 | if ((retval = issue_scb_block(adapter, raw_mbox))) | |
270 | printk(KERN_WARNING | |
271 | "megaraid: Product_info cmd failed with error: %d\n", | |
272 | retval); | |
273 | ||
274 | pci_unmap_single(adapter->dev, prod_info_dma_handle, | |
275 | sizeof(mega_product_info), PCI_DMA_FROMDEVICE); | |
276 | } | |
277 | ||
278 | ||
279 | /* | |
280 | * kernel scans the channels from 0 to <= max_channel | |
281 | */ | |
282 | adapter->host->max_channel = | |
283 | adapter->product_info.nchannels + NVIRT_CHAN -1; | |
284 | ||
285 | adapter->host->max_id = 16; /* max targets per channel */ | |
286 | ||
25985edc | 287 | adapter->host->max_lun = 7; /* Up to 7 luns for non disk devices */ |
1da177e4 LT |
288 | |
289 | adapter->host->cmd_per_lun = max_cmd_per_lun; | |
290 | ||
291 | adapter->numldrv = inquiry3->num_ldrv; | |
292 | ||
293 | adapter->max_cmds = adapter->product_info.max_commands; | |
294 | ||
295 | if(adapter->max_cmds > MAX_COMMANDS) | |
296 | adapter->max_cmds = MAX_COMMANDS; | |
297 | ||
298 | adapter->host->can_queue = adapter->max_cmds - 1; | |
299 | ||
300 | /* | |
301 | * Get the maximum number of scatter-gather elements supported by this | |
302 | * firmware | |
303 | */ | |
304 | mega_get_max_sgl(adapter); | |
305 | ||
306 | adapter->host->sg_tablesize = adapter->sglen; | |
307 | ||
308 | ||
124dd90f AR |
309 | /* use HP firmware and bios version encoding |
310 | Note: fw_version[0|1] and bios_version[0|1] were originally shifted | |
311 | right 8 bits making them zero. This 0 value was hardcoded to fix | |
312 | sparse warnings. */ | |
1da177e4 LT |
313 | if (adapter->product_info.subsysvid == HP_SUBSYS_VID) { |
314 | sprintf (adapter->fw_version, "%c%d%d.%d%d", | |
315 | adapter->product_info.fw_version[2], | |
124dd90f | 316 | 0, |
1da177e4 | 317 | adapter->product_info.fw_version[1] & 0x0f, |
124dd90f | 318 | 0, |
1da177e4 LT |
319 | adapter->product_info.fw_version[0] & 0x0f); |
320 | sprintf (adapter->bios_version, "%c%d%d.%d%d", | |
321 | adapter->product_info.bios_version[2], | |
124dd90f | 322 | 0, |
1da177e4 | 323 | adapter->product_info.bios_version[1] & 0x0f, |
124dd90f | 324 | 0, |
1da177e4 LT |
325 | adapter->product_info.bios_version[0] & 0x0f); |
326 | } else { | |
327 | memcpy(adapter->fw_version, | |
328 | (char *)adapter->product_info.fw_version, 4); | |
329 | adapter->fw_version[4] = 0; | |
330 | ||
331 | memcpy(adapter->bios_version, | |
332 | (char *)adapter->product_info.bios_version, 4); | |
333 | ||
334 | adapter->bios_version[4] = 0; | |
335 | } | |
336 | ||
337 | printk(KERN_NOTICE "megaraid: [%s:%s] detected %d logical drives.\n", | |
338 | adapter->fw_version, adapter->bios_version, adapter->numldrv); | |
339 | ||
340 | /* | |
341 | * Do we support extended (>10 bytes) cdbs | |
342 | */ | |
343 | adapter->support_ext_cdb = mega_support_ext_cdb(adapter); | |
344 | if (adapter->support_ext_cdb) | |
345 | printk(KERN_NOTICE "megaraid: supports extended CDBs.\n"); | |
346 | ||
347 | ||
348 | return 0; | |
349 | } | |
350 | ||
351 | /** | |
352 | * mega_runpendq() | |
353 | * @adapter - pointer to our soft state | |
354 | * | |
355 | * Runs through the list of pending requests. | |
356 | */ | |
357 | static inline void | |
358 | mega_runpendq(adapter_t *adapter) | |
359 | { | |
360 | if(!list_empty(&adapter->pending_list)) | |
361 | __mega_runpendq(adapter); | |
362 | } | |
363 | ||
364 | /* | |
365 | * megaraid_queue() | |
366 | * @scmd - Issue this scsi command | |
367 | * @done - the callback hook into the scsi mid-layer | |
368 | * | |
369 | * The command queuing entry point for the mid-layer. | |
370 | */ | |
371 | static int | |
f281233d | 372 | megaraid_queue_lck(Scsi_Cmnd *scmd, void (*done)(Scsi_Cmnd *)) |
1da177e4 LT |
373 | { |
374 | adapter_t *adapter; | |
375 | scb_t *scb; | |
376 | int busy=0; | |
cb0258a2 | 377 | unsigned long flags; |
1da177e4 LT |
378 | |
379 | adapter = (adapter_t *)scmd->device->host->hostdata; | |
380 | ||
381 | scmd->scsi_done = done; | |
382 | ||
383 | ||
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() | |
419 | * @adapter - pointer to our soft state | |
420 | * @cmd - scsi command from the mid-layer | |
421 | * | |
422 | * Allocate a SCB structure. This is the central structure for controller | |
423 | * commands. | |
424 | */ | |
425 | static inline scb_t * | |
426 | mega_allocate_scb(adapter_t *adapter, Scsi_Cmnd *cmd) | |
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() | |
450 | * @adapter - pointer to our soft state | |
451 | * @cmd - scsi mid layer command | |
452 | * @channel - channel on the controller | |
453 | * | |
454 | * Calculate the logical drive number based on the information in scsi command | |
455 | * and the channel number. | |
456 | */ | |
457 | static inline int | |
458 | mega_get_ldrv_num(adapter_t *adapter, Scsi_Cmnd *cmd, int channel) | |
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]) { | |
497 | case READ_6: /* fall through */ | |
498 | case WRITE_6: /* fall through */ | |
499 | case READ_10: /* fall through */ | |
500 | case WRITE_10: | |
501 | ldrv_num += 0x80; | |
502 | } | |
503 | ||
504 | return ldrv_num; | |
505 | } | |
506 | ||
507 | /** | |
508 | * mega_build_cmd() | |
509 | * @adapter - pointer to our soft state | |
510 | * @cmd - Prepare using this scsi command | |
511 | * @busy - busy flag if no resources | |
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 * | |
521 | mega_build_cmd(adapter_t *adapter, Scsi_Cmnd *cmd, int *busy) | |
522 | { | |
523 | mega_ext_passthru *epthru; | |
524 | mega_passthru *pthru; | |
525 | scb_t *scb; | |
526 | mbox_t *mbox; | |
527 | long seg; | |
528 | char islogical; | |
529 | int max_ldrv_num; | |
530 | int channel = 0; | |
531 | int target = 0; | |
532 | int ldrv_num = 0; /* logical drive number */ | |
533 | ||
534 | ||
535 | /* | |
536 | * filter the internal and ioctl commands | |
537 | */ | |
3f6270ef FT |
538 | if((cmd->cmnd[0] == MEGA_INTERNAL_CMD)) |
539 | return (scb_t *)cmd->host_scribble; | |
1da177e4 LT |
540 | |
541 | /* | |
542 | * We know what channels our logical drives are on - mega_find_card() | |
543 | */ | |
544 | islogical = adapter->logdrv_chan[cmd->device->channel]; | |
545 | ||
546 | /* | |
547 | * The theory: If physical drive is chosen for boot, all the physical | |
548 | * devices are exported before the logical drives, otherwise physical | |
549 | * devices are pushed after logical drives, in which case - Kernel sees | |
550 | * the physical devices on virtual channel which is obviously converted | |
551 | * to actual channel on the HBA. | |
552 | */ | |
553 | if( adapter->boot_pdrv_enabled ) { | |
554 | if( islogical ) { | |
555 | /* logical channel */ | |
556 | channel = cmd->device->channel - | |
557 | adapter->product_info.nchannels; | |
558 | } | |
559 | else { | |
560 | /* this is physical channel */ | |
561 | channel = cmd->device->channel; | |
562 | target = cmd->device->id; | |
563 | ||
564 | /* | |
565 | * boot from a physical disk, that disk needs to be | |
566 | * exposed first IF both the channels are SCSI, then | |
567 | * booting from the second channel is not allowed. | |
568 | */ | |
569 | if( target == 0 ) { | |
570 | target = adapter->boot_pdrv_tgt; | |
571 | } | |
572 | else if( target == adapter->boot_pdrv_tgt ) { | |
573 | target = 0; | |
574 | } | |
575 | } | |
576 | } | |
577 | else { | |
578 | if( islogical ) { | |
579 | /* this is the logical channel */ | |
580 | channel = cmd->device->channel; | |
581 | } | |
582 | else { | |
583 | /* physical channel */ | |
584 | channel = cmd->device->channel - NVIRT_CHAN; | |
585 | target = cmd->device->id; | |
586 | } | |
587 | } | |
588 | ||
589 | ||
590 | if(islogical) { | |
591 | ||
592 | /* have just LUN 0 for each target on virtual channels */ | |
593 | if (cmd->device->lun) { | |
594 | cmd->result = (DID_BAD_TARGET << 16); | |
595 | cmd->scsi_done(cmd); | |
596 | return NULL; | |
597 | } | |
598 | ||
599 | ldrv_num = mega_get_ldrv_num(adapter, cmd, channel); | |
600 | ||
601 | ||
602 | max_ldrv_num = (adapter->flag & BOARD_40LD) ? | |
603 | MAX_LOGICAL_DRIVES_40LD : MAX_LOGICAL_DRIVES_8LD; | |
604 | ||
605 | /* | |
606 | * max_ldrv_num increases by 0x80 if some logical drive was | |
607 | * deleted. | |
608 | */ | |
609 | if(adapter->read_ldidmap) | |
610 | max_ldrv_num += 0x80; | |
611 | ||
612 | if(ldrv_num > max_ldrv_num ) { | |
613 | cmd->result = (DID_BAD_TARGET << 16); | |
614 | cmd->scsi_done(cmd); | |
615 | return NULL; | |
616 | } | |
617 | ||
618 | } | |
619 | else { | |
620 | if( cmd->device->lun > 7) { | |
621 | /* | |
622 | * Do not support lun >7 for physically accessed | |
623 | * devices | |
624 | */ | |
625 | cmd->result = (DID_BAD_TARGET << 16); | |
626 | cmd->scsi_done(cmd); | |
627 | return NULL; | |
628 | } | |
629 | } | |
630 | ||
631 | /* | |
632 | * | |
633 | * Logical drive commands | |
634 | * | |
635 | */ | |
636 | if(islogical) { | |
637 | switch (cmd->cmnd[0]) { | |
638 | case TEST_UNIT_READY: | |
1da177e4 LT |
639 | #if MEGA_HAVE_CLUSTERING |
640 | /* | |
641 | * Do we support clustering and is the support enabled | |
642 | * If no, return success always | |
643 | */ | |
644 | if( !adapter->has_cluster ) { | |
645 | cmd->result = (DID_OK << 16); | |
646 | cmd->scsi_done(cmd); | |
647 | return NULL; | |
648 | } | |
649 | ||
650 | if(!(scb = mega_allocate_scb(adapter, cmd))) { | |
651 | *busy = 1; | |
652 | return NULL; | |
653 | } | |
654 | ||
655 | scb->raw_mbox[0] = MEGA_CLUSTER_CMD; | |
656 | scb->raw_mbox[2] = MEGA_RESERVATION_STATUS; | |
657 | scb->raw_mbox[3] = ldrv_num; | |
658 | ||
659 | scb->dma_direction = PCI_DMA_NONE; | |
660 | ||
661 | return scb; | |
662 | #else | |
663 | cmd->result = (DID_OK << 16); | |
664 | cmd->scsi_done(cmd); | |
665 | return NULL; | |
666 | #endif | |
667 | ||
51c928c3 JB |
668 | case MODE_SENSE: { |
669 | char *buf; | |
3f6270ef | 670 | struct scatterlist *sg; |
51c928c3 | 671 | |
3f6270ef | 672 | sg = scsi_sglist(cmd); |
77dfce07 | 673 | buf = kmap_atomic(sg_page(sg)) + sg->offset; |
51c928c3 | 674 | |
f0353301 | 675 | memset(buf, 0, cmd->cmnd[4]); |
77dfce07 | 676 | kunmap_atomic(buf - sg->offset); |
51c928c3 | 677 | |
1da177e4 LT |
678 | cmd->result = (DID_OK << 16); |
679 | cmd->scsi_done(cmd); | |
680 | return NULL; | |
51c928c3 | 681 | } |
1da177e4 LT |
682 | |
683 | case READ_CAPACITY: | |
684 | case INQUIRY: | |
685 | ||
686 | if(!(adapter->flag & (1L << cmd->device->channel))) { | |
687 | ||
688 | printk(KERN_NOTICE | |
689 | "scsi%d: scanning scsi channel %d ", | |
690 | adapter->host->host_no, | |
691 | cmd->device->channel); | |
692 | printk("for logical drives.\n"); | |
693 | ||
694 | adapter->flag |= (1L << cmd->device->channel); | |
695 | } | |
696 | ||
697 | /* Allocate a SCB and initialize passthru */ | |
698 | if(!(scb = mega_allocate_scb(adapter, cmd))) { | |
699 | *busy = 1; | |
700 | return NULL; | |
701 | } | |
702 | pthru = scb->pthru; | |
703 | ||
704 | mbox = (mbox_t *)scb->raw_mbox; | |
705 | memset(mbox, 0, sizeof(scb->raw_mbox)); | |
706 | memset(pthru, 0, sizeof(mega_passthru)); | |
707 | ||
708 | pthru->timeout = 0; | |
709 | pthru->ars = 1; | |
710 | pthru->reqsenselen = 14; | |
711 | pthru->islogical = 1; | |
712 | pthru->logdrv = ldrv_num; | |
713 | pthru->cdblen = cmd->cmd_len; | |
714 | memcpy(pthru->cdb, cmd->cmnd, cmd->cmd_len); | |
715 | ||
716 | if( adapter->has_64bit_addr ) { | |
717 | mbox->m_out.cmd = MEGA_MBOXCMD_PASSTHRU64; | |
718 | } | |
719 | else { | |
720 | mbox->m_out.cmd = MEGA_MBOXCMD_PASSTHRU; | |
721 | } | |
722 | ||
723 | scb->dma_direction = PCI_DMA_FROMDEVICE; | |
724 | ||
725 | pthru->numsgelements = mega_build_sglist(adapter, scb, | |
726 | &pthru->dataxferaddr, &pthru->dataxferlen); | |
727 | ||
728 | mbox->m_out.xferaddr = scb->pthru_dma_addr; | |
729 | ||
730 | return scb; | |
731 | ||
732 | case READ_6: | |
733 | case WRITE_6: | |
734 | case READ_10: | |
735 | case WRITE_10: | |
736 | case READ_12: | |
737 | case WRITE_12: | |
738 | ||
739 | /* Allocate a SCB and initialize mailbox */ | |
740 | if(!(scb = mega_allocate_scb(adapter, cmd))) { | |
741 | *busy = 1; | |
742 | return NULL; | |
743 | } | |
744 | mbox = (mbox_t *)scb->raw_mbox; | |
745 | ||
746 | memset(mbox, 0, sizeof(scb->raw_mbox)); | |
747 | mbox->m_out.logdrv = ldrv_num; | |
748 | ||
749 | /* | |
750 | * A little hack: 2nd bit is zero for all scsi read | |
751 | * commands and is set for all scsi write commands | |
752 | */ | |
753 | if( adapter->has_64bit_addr ) { | |
754 | mbox->m_out.cmd = (*cmd->cmnd & 0x02) ? | |
755 | MEGA_MBOXCMD_LWRITE64: | |
756 | MEGA_MBOXCMD_LREAD64 ; | |
757 | } | |
758 | else { | |
759 | mbox->m_out.cmd = (*cmd->cmnd & 0x02) ? | |
760 | MEGA_MBOXCMD_LWRITE: | |
761 | MEGA_MBOXCMD_LREAD ; | |
762 | } | |
763 | ||
764 | /* | |
765 | * 6-byte READ(0x08) or WRITE(0x0A) cdb | |
766 | */ | |
767 | if( cmd->cmd_len == 6 ) { | |
768 | mbox->m_out.numsectors = (u32) cmd->cmnd[4]; | |
769 | mbox->m_out.lba = | |
770 | ((u32)cmd->cmnd[1] << 16) | | |
771 | ((u32)cmd->cmnd[2] << 8) | | |
772 | (u32)cmd->cmnd[3]; | |
773 | ||
774 | mbox->m_out.lba &= 0x1FFFFF; | |
775 | ||
776 | #if MEGA_HAVE_STATS | |
777 | /* | |
778 | * Take modulo 0x80, since the logical drive | |
779 | * number increases by 0x80 when a logical | |
780 | * drive was deleted | |
781 | */ | |
782 | if (*cmd->cmnd == READ_6) { | |
783 | adapter->nreads[ldrv_num%0x80]++; | |
784 | adapter->nreadblocks[ldrv_num%0x80] += | |
785 | mbox->m_out.numsectors; | |
786 | } else { | |
787 | adapter->nwrites[ldrv_num%0x80]++; | |
788 | adapter->nwriteblocks[ldrv_num%0x80] += | |
789 | mbox->m_out.numsectors; | |
790 | } | |
791 | #endif | |
792 | } | |
793 | ||
794 | /* | |
795 | * 10-byte READ(0x28) or WRITE(0x2A) cdb | |
796 | */ | |
797 | if( cmd->cmd_len == 10 ) { | |
798 | mbox->m_out.numsectors = | |
799 | (u32)cmd->cmnd[8] | | |
800 | ((u32)cmd->cmnd[7] << 8); | |
801 | mbox->m_out.lba = | |
802 | ((u32)cmd->cmnd[2] << 24) | | |
803 | ((u32)cmd->cmnd[3] << 16) | | |
804 | ((u32)cmd->cmnd[4] << 8) | | |
805 | (u32)cmd->cmnd[5]; | |
806 | ||
807 | #if MEGA_HAVE_STATS | |
808 | if (*cmd->cmnd == READ_10) { | |
809 | adapter->nreads[ldrv_num%0x80]++; | |
810 | adapter->nreadblocks[ldrv_num%0x80] += | |
811 | mbox->m_out.numsectors; | |
812 | } else { | |
813 | adapter->nwrites[ldrv_num%0x80]++; | |
814 | adapter->nwriteblocks[ldrv_num%0x80] += | |
815 | mbox->m_out.numsectors; | |
816 | } | |
817 | #endif | |
818 | } | |
819 | ||
820 | /* | |
821 | * 12-byte READ(0xA8) or WRITE(0xAA) cdb | |
822 | */ | |
823 | if( cmd->cmd_len == 12 ) { | |
824 | mbox->m_out.lba = | |
825 | ((u32)cmd->cmnd[2] << 24) | | |
826 | ((u32)cmd->cmnd[3] << 16) | | |
827 | ((u32)cmd->cmnd[4] << 8) | | |
828 | (u32)cmd->cmnd[5]; | |
829 | ||
830 | mbox->m_out.numsectors = | |
831 | ((u32)cmd->cmnd[6] << 24) | | |
832 | ((u32)cmd->cmnd[7] << 16) | | |
833 | ((u32)cmd->cmnd[8] << 8) | | |
834 | (u32)cmd->cmnd[9]; | |
835 | ||
836 | #if MEGA_HAVE_STATS | |
837 | if (*cmd->cmnd == READ_12) { | |
838 | adapter->nreads[ldrv_num%0x80]++; | |
839 | adapter->nreadblocks[ldrv_num%0x80] += | |
840 | mbox->m_out.numsectors; | |
841 | } else { | |
842 | adapter->nwrites[ldrv_num%0x80]++; | |
843 | adapter->nwriteblocks[ldrv_num%0x80] += | |
844 | mbox->m_out.numsectors; | |
845 | } | |
846 | #endif | |
847 | } | |
848 | ||
849 | /* | |
850 | * If it is a read command | |
851 | */ | |
852 | if( (*cmd->cmnd & 0x0F) == 0x08 ) { | |
853 | scb->dma_direction = PCI_DMA_FROMDEVICE; | |
854 | } | |
855 | else { | |
856 | scb->dma_direction = PCI_DMA_TODEVICE; | |
857 | } | |
858 | ||
859 | /* Calculate Scatter-Gather info */ | |
860 | mbox->m_out.numsgelements = mega_build_sglist(adapter, scb, | |
861 | (u32 *)&mbox->m_out.xferaddr, (u32 *)&seg); | |
862 | ||
863 | return scb; | |
864 | ||
865 | #if MEGA_HAVE_CLUSTERING | |
866 | case RESERVE: /* Fall through */ | |
867 | case RELEASE: | |
868 | ||
869 | /* | |
870 | * Do we support clustering and is the support enabled | |
871 | */ | |
872 | if( ! adapter->has_cluster ) { | |
873 | ||
874 | cmd->result = (DID_BAD_TARGET << 16); | |
875 | cmd->scsi_done(cmd); | |
876 | return NULL; | |
877 | } | |
878 | ||
879 | /* Allocate a SCB and initialize mailbox */ | |
880 | if(!(scb = mega_allocate_scb(adapter, cmd))) { | |
881 | *busy = 1; | |
882 | return NULL; | |
883 | } | |
884 | ||
885 | scb->raw_mbox[0] = MEGA_CLUSTER_CMD; | |
886 | scb->raw_mbox[2] = ( *cmd->cmnd == RESERVE ) ? | |
887 | MEGA_RESERVE_LD : MEGA_RELEASE_LD; | |
888 | ||
889 | scb->raw_mbox[3] = ldrv_num; | |
890 | ||
891 | scb->dma_direction = PCI_DMA_NONE; | |
892 | ||
893 | return scb; | |
894 | #endif | |
895 | ||
896 | default: | |
897 | cmd->result = (DID_BAD_TARGET << 16); | |
898 | cmd->scsi_done(cmd); | |
899 | return NULL; | |
900 | } | |
901 | } | |
902 | ||
903 | /* | |
904 | * Passthru drive commands | |
905 | */ | |
906 | else { | |
907 | /* Allocate a SCB and initialize passthru */ | |
908 | if(!(scb = mega_allocate_scb(adapter, cmd))) { | |
909 | *busy = 1; | |
910 | return NULL; | |
911 | } | |
912 | ||
913 | mbox = (mbox_t *)scb->raw_mbox; | |
914 | memset(mbox, 0, sizeof(scb->raw_mbox)); | |
915 | ||
916 | if( adapter->support_ext_cdb ) { | |
917 | ||
918 | epthru = mega_prepare_extpassthru(adapter, scb, cmd, | |
919 | channel, target); | |
920 | ||
921 | mbox->m_out.cmd = MEGA_MBOXCMD_EXTPTHRU; | |
922 | ||
923 | mbox->m_out.xferaddr = scb->epthru_dma_addr; | |
924 | ||
925 | } | |
926 | else { | |
927 | ||
928 | pthru = mega_prepare_passthru(adapter, scb, cmd, | |
929 | channel, target); | |
930 | ||
931 | /* Initialize mailbox */ | |
932 | if( adapter->has_64bit_addr ) { | |
933 | mbox->m_out.cmd = MEGA_MBOXCMD_PASSTHRU64; | |
934 | } | |
935 | else { | |
936 | mbox->m_out.cmd = MEGA_MBOXCMD_PASSTHRU; | |
937 | } | |
938 | ||
939 | mbox->m_out.xferaddr = scb->pthru_dma_addr; | |
940 | ||
941 | } | |
942 | return scb; | |
943 | } | |
944 | return NULL; | |
945 | } | |
946 | ||
947 | ||
948 | /** | |
949 | * mega_prepare_passthru() | |
950 | * @adapter - pointer to our soft state | |
951 | * @scb - our scsi control block | |
952 | * @cmd - scsi command from the mid-layer | |
953 | * @channel - actual channel on the controller | |
954 | * @target - actual id on the controller. | |
955 | * | |
956 | * prepare a command for the scsi physical devices. | |
957 | */ | |
958 | static mega_passthru * | |
959 | mega_prepare_passthru(adapter_t *adapter, scb_t *scb, Scsi_Cmnd *cmd, | |
960 | int channel, int target) | |
961 | { | |
962 | mega_passthru *pthru; | |
963 | ||
964 | pthru = scb->pthru; | |
965 | memset(pthru, 0, sizeof (mega_passthru)); | |
966 | ||
967 | /* 0=6sec/1=60sec/2=10min/3=3hrs */ | |
968 | pthru->timeout = 2; | |
969 | ||
970 | pthru->ars = 1; | |
971 | pthru->reqsenselen = 14; | |
972 | pthru->islogical = 0; | |
973 | ||
974 | pthru->channel = (adapter->flag & BOARD_40LD) ? 0 : channel; | |
975 | ||
976 | pthru->target = (adapter->flag & BOARD_40LD) ? | |
977 | (channel << 4) | target : target; | |
978 | ||
979 | pthru->cdblen = cmd->cmd_len; | |
980 | pthru->logdrv = cmd->device->lun; | |
981 | ||
982 | memcpy(pthru->cdb, cmd->cmnd, cmd->cmd_len); | |
983 | ||
984 | /* Not sure about the direction */ | |
985 | scb->dma_direction = PCI_DMA_BIDIRECTIONAL; | |
986 | ||
987 | /* Special Code for Handling READ_CAPA/ INQ using bounce buffers */ | |
988 | switch (cmd->cmnd[0]) { | |
989 | case INQUIRY: | |
990 | case READ_CAPACITY: | |
991 | if(!(adapter->flag & (1L << cmd->device->channel))) { | |
992 | ||
993 | printk(KERN_NOTICE | |
994 | "scsi%d: scanning scsi channel %d [P%d] ", | |
995 | adapter->host->host_no, | |
996 | cmd->device->channel, channel); | |
997 | printk("for physical devices.\n"); | |
998 | ||
999 | adapter->flag |= (1L << cmd->device->channel); | |
1000 | } | |
1001 | /* Fall through */ | |
1002 | default: | |
1003 | pthru->numsgelements = mega_build_sglist(adapter, scb, | |
1004 | &pthru->dataxferaddr, &pthru->dataxferlen); | |
1005 | break; | |
1006 | } | |
1007 | return pthru; | |
1008 | } | |
1009 | ||
1010 | ||
1011 | /** | |
1012 | * mega_prepare_extpassthru() | |
1013 | * @adapter - pointer to our soft state | |
1014 | * @scb - our scsi control block | |
1015 | * @cmd - scsi command from the mid-layer | |
1016 | * @channel - actual channel on the controller | |
1017 | * @target - actual id on the controller. | |
1018 | * | |
1019 | * prepare a command for the scsi physical devices. This rountine prepares | |
1020 | * commands for devices which can take extended CDBs (>10 bytes) | |
1021 | */ | |
1022 | static mega_ext_passthru * | |
1023 | mega_prepare_extpassthru(adapter_t *adapter, scb_t *scb, Scsi_Cmnd *cmd, | |
1024 | int channel, int target) | |
1025 | { | |
1026 | mega_ext_passthru *epthru; | |
1027 | ||
1028 | epthru = scb->epthru; | |
1029 | memset(epthru, 0, sizeof(mega_ext_passthru)); | |
1030 | ||
1031 | /* 0=6sec/1=60sec/2=10min/3=3hrs */ | |
1032 | epthru->timeout = 2; | |
1033 | ||
1034 | epthru->ars = 1; | |
1035 | epthru->reqsenselen = 14; | |
1036 | epthru->islogical = 0; | |
1037 | ||
1038 | epthru->channel = (adapter->flag & BOARD_40LD) ? 0 : channel; | |
1039 | epthru->target = (adapter->flag & BOARD_40LD) ? | |
1040 | (channel << 4) | target : target; | |
1041 | ||
1042 | epthru->cdblen = cmd->cmd_len; | |
1043 | epthru->logdrv = cmd->device->lun; | |
1044 | ||
1045 | memcpy(epthru->cdb, cmd->cmnd, cmd->cmd_len); | |
1046 | ||
1047 | /* Not sure about the direction */ | |
1048 | scb->dma_direction = PCI_DMA_BIDIRECTIONAL; | |
1049 | ||
1050 | switch(cmd->cmnd[0]) { | |
1051 | case INQUIRY: | |
1052 | case READ_CAPACITY: | |
1053 | if(!(adapter->flag & (1L << cmd->device->channel))) { | |
1054 | ||
1055 | printk(KERN_NOTICE | |
1056 | "scsi%d: scanning scsi channel %d [P%d] ", | |
1057 | adapter->host->host_no, | |
1058 | cmd->device->channel, channel); | |
1059 | printk("for physical devices.\n"); | |
1060 | ||
1061 | adapter->flag |= (1L << cmd->device->channel); | |
1062 | } | |
1063 | /* Fall through */ | |
1064 | default: | |
1065 | epthru->numsgelements = mega_build_sglist(adapter, scb, | |
1066 | &epthru->dataxferaddr, &epthru->dataxferlen); | |
1067 | break; | |
1068 | } | |
1069 | ||
1070 | return epthru; | |
1071 | } | |
1072 | ||
1073 | static void | |
1074 | __mega_runpendq(adapter_t *adapter) | |
1075 | { | |
1076 | scb_t *scb; | |
1077 | struct list_head *pos, *next; | |
1078 | ||
1079 | /* Issue any pending commands to the card */ | |
1080 | list_for_each_safe(pos, next, &adapter->pending_list) { | |
1081 | ||
1082 | scb = list_entry(pos, scb_t, list); | |
1083 | ||
1084 | if( !(scb->state & SCB_ISSUED) ) { | |
1085 | ||
1086 | if( issue_scb(adapter, scb) != 0 ) | |
1087 | return; | |
1088 | } | |
1089 | } | |
1090 | ||
1091 | return; | |
1092 | } | |
1093 | ||
1094 | ||
1095 | /** | |
1096 | * issue_scb() | |
1097 | * @adapter - pointer to our soft state | |
1098 | * @scb - scsi control block | |
1099 | * | |
1100 | * Post a command to the card if the mailbox is available, otherwise return | |
1101 | * busy. We also take the scb from the pending list if the mailbox is | |
1102 | * available. | |
1103 | */ | |
1104 | static int | |
1105 | issue_scb(adapter_t *adapter, scb_t *scb) | |
1106 | { | |
1107 | volatile mbox64_t *mbox64 = adapter->mbox64; | |
1108 | volatile mbox_t *mbox = adapter->mbox; | |
1109 | unsigned int i = 0; | |
1110 | ||
1111 | if(unlikely(mbox->m_in.busy)) { | |
1112 | do { | |
1113 | udelay(1); | |
1114 | i++; | |
1115 | } while( mbox->m_in.busy && (i < max_mbox_busy_wait) ); | |
1116 | ||
1117 | if(mbox->m_in.busy) return -1; | |
1118 | } | |
1119 | ||
1120 | /* Copy mailbox data into host structure */ | |
1121 | memcpy((char *)&mbox->m_out, (char *)scb->raw_mbox, | |
1122 | sizeof(struct mbox_out)); | |
1123 | ||
1124 | mbox->m_out.cmdid = scb->idx; /* Set cmdid */ | |
1125 | mbox->m_in.busy = 1; /* Set busy */ | |
1126 | ||
1127 | ||
1128 | /* | |
1129 | * Increment the pending queue counter | |
1130 | */ | |
1131 | atomic_inc(&adapter->pend_cmds); | |
1132 | ||
1133 | switch (mbox->m_out.cmd) { | |
1134 | case MEGA_MBOXCMD_LREAD64: | |
1135 | case MEGA_MBOXCMD_LWRITE64: | |
1136 | case MEGA_MBOXCMD_PASSTHRU64: | |
1137 | case MEGA_MBOXCMD_EXTPTHRU: | |
1138 | mbox64->xfer_segment_lo = mbox->m_out.xferaddr; | |
1139 | mbox64->xfer_segment_hi = 0; | |
1140 | mbox->m_out.xferaddr = 0xFFFFFFFF; | |
1141 | break; | |
1142 | default: | |
1143 | mbox64->xfer_segment_lo = 0; | |
1144 | mbox64->xfer_segment_hi = 0; | |
1145 | } | |
1146 | ||
1147 | /* | |
1148 | * post the command | |
1149 | */ | |
1150 | scb->state |= SCB_ISSUED; | |
1151 | ||
1152 | if( likely(adapter->flag & BOARD_MEMMAP) ) { | |
1153 | mbox->m_in.poll = 0; | |
1154 | mbox->m_in.ack = 0; | |
1155 | WRINDOOR(adapter, adapter->mbox_dma | 0x1); | |
1156 | } | |
1157 | else { | |
1158 | irq_enable(adapter); | |
1159 | issue_command(adapter); | |
1160 | } | |
1161 | ||
1162 | return 0; | |
1163 | } | |
1164 | ||
1165 | /* | |
1166 | * Wait until the controller's mailbox is available | |
1167 | */ | |
1168 | static inline int | |
1169 | mega_busywait_mbox (adapter_t *adapter) | |
1170 | { | |
1171 | if (adapter->mbox->m_in.busy) | |
1172 | return __mega_busywait_mbox(adapter); | |
1173 | return 0; | |
1174 | } | |
1175 | ||
1176 | /** | |
1177 | * issue_scb_block() | |
1178 | * @adapter - pointer to our soft state | |
1179 | * @raw_mbox - the mailbox | |
1180 | * | |
1181 | * Issue a scb in synchronous and non-interrupt mode | |
1182 | */ | |
1183 | static int | |
1184 | issue_scb_block(adapter_t *adapter, u_char *raw_mbox) | |
1185 | { | |
1186 | volatile mbox64_t *mbox64 = adapter->mbox64; | |
1187 | volatile mbox_t *mbox = adapter->mbox; | |
1188 | u8 byte; | |
1189 | ||
1190 | /* Wait until mailbox is free */ | |
1191 | if(mega_busywait_mbox (adapter)) | |
1192 | goto bug_blocked_mailbox; | |
1193 | ||
1194 | /* Copy mailbox data into host structure */ | |
1195 | memcpy((char *) mbox, raw_mbox, sizeof(struct mbox_out)); | |
1196 | mbox->m_out.cmdid = 0xFE; | |
1197 | mbox->m_in.busy = 1; | |
1198 | ||
1199 | switch (raw_mbox[0]) { | |
1200 | case MEGA_MBOXCMD_LREAD64: | |
1201 | case MEGA_MBOXCMD_LWRITE64: | |
1202 | case MEGA_MBOXCMD_PASSTHRU64: | |
1203 | case MEGA_MBOXCMD_EXTPTHRU: | |
1204 | mbox64->xfer_segment_lo = mbox->m_out.xferaddr; | |
1205 | mbox64->xfer_segment_hi = 0; | |
1206 | mbox->m_out.xferaddr = 0xFFFFFFFF; | |
1207 | break; | |
1208 | default: | |
1209 | mbox64->xfer_segment_lo = 0; | |
1210 | mbox64->xfer_segment_hi = 0; | |
1211 | } | |
1212 | ||
1213 | if( likely(adapter->flag & BOARD_MEMMAP) ) { | |
1214 | mbox->m_in.poll = 0; | |
1215 | mbox->m_in.ack = 0; | |
1216 | mbox->m_in.numstatus = 0xFF; | |
1217 | mbox->m_in.status = 0xFF; | |
1218 | WRINDOOR(adapter, adapter->mbox_dma | 0x1); | |
1219 | ||
1220 | while((volatile u8)mbox->m_in.numstatus == 0xFF) | |
1221 | cpu_relax(); | |
1222 | ||
1223 | mbox->m_in.numstatus = 0xFF; | |
1224 | ||
1225 | while( (volatile u8)mbox->m_in.poll != 0x77 ) | |
1226 | cpu_relax(); | |
1227 | ||
1228 | mbox->m_in.poll = 0; | |
1229 | mbox->m_in.ack = 0x77; | |
1230 | ||
1231 | WRINDOOR(adapter, adapter->mbox_dma | 0x2); | |
1232 | ||
1233 | while(RDINDOOR(adapter) & 0x2) | |
1234 | cpu_relax(); | |
1235 | } | |
1236 | else { | |
1237 | irq_disable(adapter); | |
1238 | issue_command(adapter); | |
1239 | ||
1240 | while (!((byte = irq_state(adapter)) & INTR_VALID)) | |
1241 | cpu_relax(); | |
1242 | ||
1243 | set_irq_state(adapter, byte); | |
1244 | irq_enable(adapter); | |
1245 | irq_ack(adapter); | |
1246 | } | |
1247 | ||
1248 | return mbox->m_in.status; | |
1249 | ||
1250 | bug_blocked_mailbox: | |
1251 | printk(KERN_WARNING "megaraid: Blocked mailbox......!!\n"); | |
1252 | udelay (1000); | |
1253 | return -1; | |
1254 | } | |
1255 | ||
1256 | ||
1257 | /** | |
1258 | * megaraid_isr_iomapped() | |
1259 | * @irq - irq | |
1260 | * @devp - pointer to our soft state | |
1da177e4 LT |
1261 | * |
1262 | * Interrupt service routine for io-mapped controllers. | |
1263 | * Find out if our device is interrupting. If yes, acknowledge the interrupt | |
1264 | * and service the completed commands. | |
1265 | */ | |
1266 | static irqreturn_t | |
7d12e780 | 1267 | megaraid_isr_iomapped(int irq, void *devp) |
1da177e4 LT |
1268 | { |
1269 | adapter_t *adapter = devp; | |
1270 | unsigned long flags; | |
1271 | u8 status; | |
1272 | u8 nstatus; | |
1273 | u8 completed[MAX_FIRMWARE_STATUS]; | |
1274 | u8 byte; | |
1275 | int handled = 0; | |
1276 | ||
1277 | ||
1278 | /* | |
1279 | * loop till F/W has more commands for us to complete. | |
1280 | */ | |
1281 | spin_lock_irqsave(&adapter->lock, flags); | |
1282 | ||
1283 | do { | |
1284 | /* Check if a valid interrupt is pending */ | |
1285 | byte = irq_state(adapter); | |
1286 | if( (byte & VALID_INTR_BYTE) == 0 ) { | |
1287 | /* | |
1288 | * No more pending commands | |
1289 | */ | |
1290 | goto out_unlock; | |
1291 | } | |
1292 | set_irq_state(adapter, byte); | |
1293 | ||
1294 | while((nstatus = (volatile u8)adapter->mbox->m_in.numstatus) | |
1295 | == 0xFF) | |
1296 | cpu_relax(); | |
1297 | adapter->mbox->m_in.numstatus = 0xFF; | |
1298 | ||
1299 | status = adapter->mbox->m_in.status; | |
1300 | ||
1301 | /* | |
1302 | * decrement the pending queue counter | |
1303 | */ | |
1304 | atomic_sub(nstatus, &adapter->pend_cmds); | |
1305 | ||
1306 | memcpy(completed, (void *)adapter->mbox->m_in.completed, | |
1307 | nstatus); | |
1308 | ||
1309 | /* Acknowledge interrupt */ | |
1310 | irq_ack(adapter); | |
1311 | ||
1312 | mega_cmd_done(adapter, completed, nstatus, status); | |
1313 | ||
1314 | mega_rundoneq(adapter); | |
1315 | ||
1316 | handled = 1; | |
1317 | ||
1318 | /* Loop through any pending requests */ | |
1319 | if(atomic_read(&adapter->quiescent) == 0) { | |
1320 | mega_runpendq(adapter); | |
1321 | } | |
1322 | ||
1323 | } while(1); | |
1324 | ||
1325 | out_unlock: | |
1326 | ||
1327 | spin_unlock_irqrestore(&adapter->lock, flags); | |
1328 | ||
1329 | return IRQ_RETVAL(handled); | |
1330 | } | |
1331 | ||
1332 | ||
1333 | /** | |
1334 | * megaraid_isr_memmapped() | |
1335 | * @irq - irq | |
1336 | * @devp - pointer to our soft state | |
1da177e4 LT |
1337 | * |
1338 | * Interrupt service routine for memory-mapped controllers. | |
1339 | * Find out if our device is interrupting. If yes, acknowledge the interrupt | |
1340 | * and service the completed commands. | |
1341 | */ | |
1342 | static irqreturn_t | |
7d12e780 | 1343 | megaraid_isr_memmapped(int irq, void *devp) |
1da177e4 LT |
1344 | { |
1345 | adapter_t *adapter = devp; | |
1346 | unsigned long flags; | |
1347 | u8 status; | |
1348 | u32 dword = 0; | |
1349 | u8 nstatus; | |
1350 | u8 completed[MAX_FIRMWARE_STATUS]; | |
1351 | int handled = 0; | |
1352 | ||
1353 | ||
1354 | /* | |
1355 | * loop till F/W has more commands for us to complete. | |
1356 | */ | |
1357 | spin_lock_irqsave(&adapter->lock, flags); | |
1358 | ||
1359 | do { | |
1360 | /* Check if a valid interrupt is pending */ | |
1361 | dword = RDOUTDOOR(adapter); | |
1362 | if(dword != 0x10001234) { | |
1363 | /* | |
1364 | * No more pending commands | |
1365 | */ | |
1366 | goto out_unlock; | |
1367 | } | |
1368 | WROUTDOOR(adapter, 0x10001234); | |
1369 | ||
1370 | while((nstatus = (volatile u8)adapter->mbox->m_in.numstatus) | |
1371 | == 0xFF) { | |
1372 | cpu_relax(); | |
1373 | } | |
1374 | adapter->mbox->m_in.numstatus = 0xFF; | |
1375 | ||
1376 | status = adapter->mbox->m_in.status; | |
1377 | ||
1378 | /* | |
1379 | * decrement the pending queue counter | |
1380 | */ | |
1381 | atomic_sub(nstatus, &adapter->pend_cmds); | |
1382 | ||
1383 | memcpy(completed, (void *)adapter->mbox->m_in.completed, | |
1384 | nstatus); | |
1385 | ||
1386 | /* Acknowledge interrupt */ | |
1387 | WRINDOOR(adapter, 0x2); | |
1388 | ||
1389 | handled = 1; | |
1390 | ||
00769ec4 JG |
1391 | while( RDINDOOR(adapter) & 0x02 ) |
1392 | cpu_relax(); | |
1da177e4 LT |
1393 | |
1394 | mega_cmd_done(adapter, completed, nstatus, status); | |
1395 | ||
1396 | mega_rundoneq(adapter); | |
1397 | ||
1398 | /* Loop through any pending requests */ | |
1399 | if(atomic_read(&adapter->quiescent) == 0) { | |
1400 | mega_runpendq(adapter); | |
1401 | } | |
1402 | ||
1403 | } while(1); | |
1404 | ||
1405 | out_unlock: | |
1406 | ||
1407 | spin_unlock_irqrestore(&adapter->lock, flags); | |
1408 | ||
1409 | return IRQ_RETVAL(handled); | |
1410 | } | |
1411 | /** | |
1412 | * mega_cmd_done() | |
1413 | * @adapter - pointer to our soft state | |
1414 | * @completed - array of ids of completed commands | |
1415 | * @nstatus - number of completed commands | |
1416 | * @status - status of the last command completed | |
1417 | * | |
8e572bab | 1418 | * Complete the commands and call the scsi mid-layer callback hooks. |
1da177e4 LT |
1419 | */ |
1420 | static void | |
1421 | mega_cmd_done(adapter_t *adapter, u8 completed[], int nstatus, int status) | |
1422 | { | |
1423 | mega_ext_passthru *epthru = NULL; | |
1424 | struct scatterlist *sgl; | |
1425 | Scsi_Cmnd *cmd = NULL; | |
1426 | mega_passthru *pthru = NULL; | |
1427 | mbox_t *mbox = NULL; | |
1428 | u8 c; | |
1429 | scb_t *scb; | |
1430 | int islogical; | |
1431 | int cmdid; | |
1432 | int i; | |
1433 | ||
1434 | /* | |
1435 | * for all the commands completed, call the mid-layer callback routine | |
1436 | * and free the scb. | |
1437 | */ | |
1438 | for( i = 0; i < nstatus; i++ ) { | |
1439 | ||
1440 | cmdid = completed[i]; | |
1441 | ||
1442 | if( cmdid == CMDID_INT_CMDS ) { /* internal command */ | |
1443 | scb = &adapter->int_scb; | |
1444 | cmd = scb->cmd; | |
1445 | mbox = (mbox_t *)scb->raw_mbox; | |
1446 | ||
1447 | /* | |
1448 | * Internal command interface do not fire the extended | |
1449 | * passthru or 64-bit passthru | |
1450 | */ | |
1451 | pthru = scb->pthru; | |
1452 | ||
1453 | } | |
1454 | else { | |
1455 | scb = &adapter->scb_list[cmdid]; | |
1456 | ||
1457 | /* | |
1458 | * Make sure f/w has completed a valid command | |
1459 | */ | |
1460 | if( !(scb->state & SCB_ISSUED) || scb->cmd == NULL ) { | |
1461 | printk(KERN_CRIT | |
1462 | "megaraid: invalid command "); | |
1463 | printk("Id %d, scb->state:%x, scsi cmd:%p\n", | |
1464 | cmdid, scb->state, scb->cmd); | |
1465 | ||
1466 | continue; | |
1467 | } | |
1468 | ||
1469 | /* | |
1470 | * Was a abort issued for this command | |
1471 | */ | |
1472 | if( scb->state & SCB_ABORT ) { | |
1473 | ||
1474 | printk(KERN_WARNING | |
5cd049a5 CH |
1475 | "megaraid: aborted cmd [%x] complete.\n", |
1476 | scb->idx); | |
1da177e4 LT |
1477 | |
1478 | scb->cmd->result = (DID_ABORT << 16); | |
1479 | ||
1480 | list_add_tail(SCSI_LIST(scb->cmd), | |
1481 | &adapter->completed_list); | |
1482 | ||
1483 | mega_free_scb(adapter, scb); | |
1484 | ||
1485 | continue; | |
1486 | } | |
1487 | ||
1488 | /* | |
1489 | * Was a reset issued for this command | |
1490 | */ | |
1491 | if( scb->state & SCB_RESET ) { | |
1492 | ||
1493 | printk(KERN_WARNING | |
5cd049a5 CH |
1494 | "megaraid: reset cmd [%x] complete.\n", |
1495 | scb->idx); | |
1da177e4 LT |
1496 | |
1497 | scb->cmd->result = (DID_RESET << 16); | |
1498 | ||
1499 | list_add_tail(SCSI_LIST(scb->cmd), | |
1500 | &adapter->completed_list); | |
1501 | ||
1502 | mega_free_scb (adapter, scb); | |
1503 | ||
1504 | continue; | |
1505 | } | |
1506 | ||
1507 | cmd = scb->cmd; | |
1508 | pthru = scb->pthru; | |
1509 | epthru = scb->epthru; | |
1510 | mbox = (mbox_t *)scb->raw_mbox; | |
1511 | ||
1512 | #if MEGA_HAVE_STATS | |
1513 | { | |
1514 | ||
1515 | int logdrv = mbox->m_out.logdrv; | |
1516 | ||
1517 | islogical = adapter->logdrv_chan[cmd->channel]; | |
1518 | /* | |
1519 | * Maintain an error counter for the logical drive. | |
1520 | * Some application like SNMP agent need such | |
1521 | * statistics | |
1522 | */ | |
1523 | if( status && islogical && (cmd->cmnd[0] == READ_6 || | |
1524 | cmd->cmnd[0] == READ_10 || | |
1525 | cmd->cmnd[0] == READ_12)) { | |
1526 | /* | |
1527 | * Logical drive number increases by 0x80 when | |
1528 | * a logical drive is deleted | |
1529 | */ | |
1530 | adapter->rd_errors[logdrv%0x80]++; | |
1531 | } | |
1532 | ||
1533 | if( status && islogical && (cmd->cmnd[0] == WRITE_6 || | |
1534 | cmd->cmnd[0] == WRITE_10 || | |
1535 | cmd->cmnd[0] == WRITE_12)) { | |
1536 | /* | |
1537 | * Logical drive number increases by 0x80 when | |
1538 | * a logical drive is deleted | |
1539 | */ | |
1540 | adapter->wr_errors[logdrv%0x80]++; | |
1541 | } | |
1542 | ||
1543 | } | |
1544 | #endif | |
1545 | } | |
1546 | ||
1547 | /* | |
1548 | * Do not return the presence of hard disk on the channel so, | |
1549 | * inquiry sent, and returned data==hard disk or removable | |
1550 | * hard disk and not logical, request should return failure! - | |
1551 | * PJ | |
1552 | */ | |
1553 | islogical = adapter->logdrv_chan[cmd->device->channel]; | |
1554 | if( cmd->cmnd[0] == INQUIRY && !islogical ) { | |
1555 | ||
3f6270ef | 1556 | sgl = scsi_sglist(cmd); |
45711f1a JA |
1557 | if( sg_page(sgl) ) { |
1558 | c = *(unsigned char *) sg_virt(&sgl[0]); | |
3f6270ef FT |
1559 | } else { |
1560 | printk(KERN_WARNING | |
1561 | "megaraid: invalid sg.\n"); | |
1562 | c = 0; | |
1da177e4 LT |
1563 | } |
1564 | ||
1565 | if(IS_RAID_CH(adapter, cmd->device->channel) && | |
1566 | ((c & 0x1F ) == TYPE_DISK)) { | |
1567 | status = 0xF0; | |
1568 | } | |
1569 | } | |
1570 | ||
1571 | /* clear result; otherwise, success returns corrupt value */ | |
1572 | cmd->result = 0; | |
1573 | ||
1574 | /* Convert MegaRAID status to Linux error code */ | |
1575 | switch (status) { | |
1576 | case 0x00: /* SUCCESS , i.e. SCSI_STATUS_GOOD */ | |
1577 | cmd->result |= (DID_OK << 16); | |
1578 | break; | |
1579 | ||
1580 | case 0x02: /* ERROR_ABORTED, i.e. | |
1581 | SCSI_STATUS_CHECK_CONDITION */ | |
1582 | ||
1583 | /* set sense_buffer and result fields */ | |
1584 | if( mbox->m_out.cmd == MEGA_MBOXCMD_PASSTHRU || | |
1585 | mbox->m_out.cmd == MEGA_MBOXCMD_PASSTHRU64 ) { | |
1586 | ||
1587 | memcpy(cmd->sense_buffer, pthru->reqsensearea, | |
1588 | 14); | |
1589 | ||
1590 | cmd->result = (DRIVER_SENSE << 24) | | |
1591 | (DID_OK << 16) | | |
1592 | (CHECK_CONDITION << 1); | |
1593 | } | |
1594 | else { | |
1595 | if (mbox->m_out.cmd == MEGA_MBOXCMD_EXTPTHRU) { | |
1596 | ||
1597 | memcpy(cmd->sense_buffer, | |
1598 | epthru->reqsensearea, 14); | |
1599 | ||
1600 | cmd->result = (DRIVER_SENSE << 24) | | |
1601 | (DID_OK << 16) | | |
1602 | (CHECK_CONDITION << 1); | |
1603 | } else { | |
1604 | cmd->sense_buffer[0] = 0x70; | |
1605 | cmd->sense_buffer[2] = ABORTED_COMMAND; | |
1606 | cmd->result |= (CHECK_CONDITION << 1); | |
1607 | } | |
1608 | } | |
1609 | break; | |
1610 | ||
1611 | case 0x08: /* ERR_DEST_DRIVE_FAILED, i.e. | |
1612 | SCSI_STATUS_BUSY */ | |
1613 | cmd->result |= (DID_BUS_BUSY << 16) | status; | |
1614 | break; | |
1615 | ||
1616 | default: | |
1617 | #if MEGA_HAVE_CLUSTERING | |
1618 | /* | |
1619 | * If TEST_UNIT_READY fails, we know | |
1620 | * MEGA_RESERVATION_STATUS failed | |
1621 | */ | |
1622 | if( cmd->cmnd[0] == TEST_UNIT_READY ) { | |
1623 | cmd->result |= (DID_ERROR << 16) | | |
1624 | (RESERVATION_CONFLICT << 1); | |
1625 | } | |
1626 | else | |
1627 | /* | |
1628 | * Error code returned is 1 if Reserve or Release | |
1629 | * failed or the input parameter is invalid | |
1630 | */ | |
1631 | if( status == 1 && | |
1632 | (cmd->cmnd[0] == RESERVE || | |
1633 | cmd->cmnd[0] == RELEASE) ) { | |
1634 | ||
1635 | cmd->result |= (DID_ERROR << 16) | | |
1636 | (RESERVATION_CONFLICT << 1); | |
1637 | } | |
1638 | else | |
1639 | #endif | |
1640 | cmd->result |= (DID_BAD_TARGET << 16)|status; | |
1641 | } | |
1642 | ||
1643 | /* | |
1644 | * Only free SCBs for the commands coming down from the | |
1645 | * mid-layer, not for which were issued internally | |
1646 | * | |
1647 | * For internal command, restore the status returned by the | |
1648 | * firmware so that user can interpret it. | |
1649 | */ | |
1650 | if( cmdid == CMDID_INT_CMDS ) { /* internal command */ | |
1651 | cmd->result = status; | |
1652 | ||
1653 | /* | |
1654 | * Remove the internal command from the pending list | |
1655 | */ | |
1656 | list_del_init(&scb->list); | |
1657 | scb->state = SCB_FREE; | |
1658 | } | |
1659 | else { | |
1660 | mega_free_scb(adapter, scb); | |
1661 | } | |
1662 | ||
1663 | /* Add Scsi_Command to end of completed queue */ | |
1664 | list_add_tail(SCSI_LIST(cmd), &adapter->completed_list); | |
1665 | } | |
1666 | } | |
1667 | ||
1668 | ||
1669 | /* | |
1670 | * mega_runpendq() | |
1671 | * | |
1672 | * Run through the list of completed requests and finish it | |
1673 | */ | |
1674 | static void | |
1675 | mega_rundoneq (adapter_t *adapter) | |
1676 | { | |
1677 | Scsi_Cmnd *cmd; | |
1678 | struct list_head *pos; | |
1679 | ||
1680 | list_for_each(pos, &adapter->completed_list) { | |
1681 | ||
0a04137e | 1682 | struct scsi_pointer* spos = (struct scsi_pointer *)pos; |
1da177e4 LT |
1683 | |
1684 | cmd = list_entry(spos, Scsi_Cmnd, SCp); | |
1685 | cmd->scsi_done(cmd); | |
1686 | } | |
1687 | ||
1688 | INIT_LIST_HEAD(&adapter->completed_list); | |
1689 | } | |
1690 | ||
1691 | ||
1692 | /* | |
1693 | * Free a SCB structure | |
1694 | * Note: We assume the scsi commands associated with this scb is not free yet. | |
1695 | */ | |
1696 | static void | |
1697 | mega_free_scb(adapter_t *adapter, scb_t *scb) | |
1698 | { | |
1699 | switch( scb->dma_type ) { | |
1700 | ||
1701 | case MEGA_DMA_TYPE_NONE: | |
1702 | break; | |
1703 | ||
1da177e4 | 1704 | case MEGA_SGLIST: |
3f6270ef | 1705 | scsi_dma_unmap(scb->cmd); |
1da177e4 | 1706 | break; |
1da177e4 LT |
1707 | default: |
1708 | break; | |
1709 | } | |
1710 | ||
1711 | /* | |
1712 | * Remove from the pending list | |
1713 | */ | |
1714 | list_del_init(&scb->list); | |
1715 | ||
1716 | /* Link the scb back into free list */ | |
1717 | scb->state = SCB_FREE; | |
1718 | scb->cmd = NULL; | |
1719 | ||
1720 | list_add(&scb->list, &adapter->free_list); | |
1721 | } | |
1722 | ||
1723 | ||
1724 | static int | |
1725 | __mega_busywait_mbox (adapter_t *adapter) | |
1726 | { | |
1727 | volatile mbox_t *mbox = adapter->mbox; | |
1728 | long counter; | |
1729 | ||
1730 | for (counter = 0; counter < 10000; counter++) { | |
1731 | if (!mbox->m_in.busy) | |
1732 | return 0; | |
e1fa0cea AL |
1733 | udelay(100); |
1734 | cond_resched(); | |
1da177e4 LT |
1735 | } |
1736 | return -1; /* give up after 1 second */ | |
1737 | } | |
1738 | ||
1739 | /* | |
1740 | * Copies data to SGLIST | |
1741 | * Note: For 64 bit cards, we need a minimum of one SG element for read/write | |
1742 | */ | |
1743 | static int | |
1744 | mega_build_sglist(adapter_t *adapter, scb_t *scb, u32 *buf, u32 *len) | |
1745 | { | |
3f6270ef | 1746 | struct scatterlist *sg; |
1da177e4 LT |
1747 | Scsi_Cmnd *cmd; |
1748 | int sgcnt; | |
1749 | int idx; | |
1750 | ||
1751 | cmd = scb->cmd; | |
1752 | ||
1da177e4 LT |
1753 | /* |
1754 | * Copy Scatter-Gather list info into controller structure. | |
1755 | * | |
1756 | * The number of sg elements returned must not exceed our limit | |
1757 | */ | |
3f6270ef | 1758 | sgcnt = scsi_dma_map(cmd); |
1da177e4 LT |
1759 | |
1760 | scb->dma_type = MEGA_SGLIST; | |
1761 | ||
3f6270ef | 1762 | BUG_ON(sgcnt > adapter->sglen || sgcnt < 0); |
1da177e4 | 1763 | |
51c928c3 JB |
1764 | *len = 0; |
1765 | ||
d5e89385 FT |
1766 | if (scsi_sg_count(cmd) == 1 && !adapter->has_64bit_addr) { |
1767 | sg = scsi_sglist(cmd); | |
1768 | scb->dma_h_bulkdata = sg_dma_address(sg); | |
1769 | *buf = (u32)scb->dma_h_bulkdata; | |
1770 | *len = sg_dma_len(sg); | |
1771 | return 0; | |
1772 | } | |
1773 | ||
3f6270ef FT |
1774 | scsi_for_each_sg(cmd, sg, sgcnt, idx) { |
1775 | if (adapter->has_64bit_addr) { | |
1776 | scb->sgl64[idx].address = sg_dma_address(sg); | |
1777 | *len += scb->sgl64[idx].length = sg_dma_len(sg); | |
1778 | } else { | |
1779 | scb->sgl[idx].address = sg_dma_address(sg); | |
1780 | *len += scb->sgl[idx].length = sg_dma_len(sg); | |
1da177e4 LT |
1781 | } |
1782 | } | |
1783 | ||
1784 | /* Reset pointer and length fields */ | |
1785 | *buf = scb->sgl_dma_addr; | |
1786 | ||
1da177e4 LT |
1787 | /* Return count of SG requests */ |
1788 | return sgcnt; | |
1789 | } | |
1790 | ||
1791 | ||
1792 | /* | |
1793 | * mega_8_to_40ld() | |
1794 | * | |
1795 | * takes all info in AdapterInquiry structure and puts it into ProductInfo and | |
1796 | * Enquiry3 structures for later use | |
1797 | */ | |
1798 | static void | |
1799 | mega_8_to_40ld(mraid_inquiry *inquiry, mega_inquiry3 *enquiry3, | |
1800 | mega_product_info *product_info) | |
1801 | { | |
1802 | int i; | |
1803 | ||
1804 | product_info->max_commands = inquiry->adapter_info.max_commands; | |
1805 | enquiry3->rebuild_rate = inquiry->adapter_info.rebuild_rate; | |
1806 | product_info->nchannels = inquiry->adapter_info.nchannels; | |
1807 | ||
1808 | for (i = 0; i < 4; i++) { | |
1809 | product_info->fw_version[i] = | |
1810 | inquiry->adapter_info.fw_version[i]; | |
1811 | ||
1812 | product_info->bios_version[i] = | |
1813 | inquiry->adapter_info.bios_version[i]; | |
1814 | } | |
1815 | enquiry3->cache_flush_interval = | |
1816 | inquiry->adapter_info.cache_flush_interval; | |
1817 | ||
1818 | product_info->dram_size = inquiry->adapter_info.dram_size; | |
1819 | ||
1820 | enquiry3->num_ldrv = inquiry->logdrv_info.num_ldrv; | |
1821 | ||
1822 | for (i = 0; i < MAX_LOGICAL_DRIVES_8LD; i++) { | |
1823 | enquiry3->ldrv_size[i] = inquiry->logdrv_info.ldrv_size[i]; | |
1824 | enquiry3->ldrv_prop[i] = inquiry->logdrv_info.ldrv_prop[i]; | |
1825 | enquiry3->ldrv_state[i] = inquiry->logdrv_info.ldrv_state[i]; | |
1826 | } | |
1827 | ||
1828 | for (i = 0; i < (MAX_PHYSICAL_DRIVES); i++) | |
1829 | enquiry3->pdrv_state[i] = inquiry->pdrv_info.pdrv_state[i]; | |
1830 | } | |
1831 | ||
1832 | static inline void | |
1833 | mega_free_sgl(adapter_t *adapter) | |
1834 | { | |
1835 | scb_t *scb; | |
1836 | int i; | |
1837 | ||
1838 | for(i = 0; i < adapter->max_cmds; i++) { | |
1839 | ||
1840 | scb = &adapter->scb_list[i]; | |
1841 | ||
1842 | if( scb->sgl64 ) { | |
1843 | pci_free_consistent(adapter->dev, | |
1844 | sizeof(mega_sgl64) * adapter->sglen, | |
1845 | scb->sgl64, | |
1846 | scb->sgl_dma_addr); | |
1847 | ||
1848 | scb->sgl64 = NULL; | |
1849 | } | |
1850 | ||
1851 | if( scb->pthru ) { | |
1852 | pci_free_consistent(adapter->dev, sizeof(mega_passthru), | |
1853 | scb->pthru, scb->pthru_dma_addr); | |
1854 | ||
1855 | scb->pthru = NULL; | |
1856 | } | |
1857 | ||
1858 | if( scb->epthru ) { | |
1859 | pci_free_consistent(adapter->dev, | |
1860 | sizeof(mega_ext_passthru), | |
1861 | scb->epthru, scb->epthru_dma_addr); | |
1862 | ||
1863 | scb->epthru = NULL; | |
1864 | } | |
1865 | ||
1866 | } | |
1867 | } | |
1868 | ||
1869 | ||
1870 | /* | |
1871 | * Get information about the card/driver | |
1872 | */ | |
1873 | const char * | |
1874 | megaraid_info(struct Scsi_Host *host) | |
1875 | { | |
1876 | static char buffer[512]; | |
1877 | adapter_t *adapter; | |
1878 | ||
1879 | adapter = (adapter_t *)host->hostdata; | |
1880 | ||
1881 | sprintf (buffer, | |
1882 | "LSI Logic MegaRAID %s %d commands %d targs %d chans %d luns", | |
1883 | adapter->fw_version, adapter->product_info.max_commands, | |
1884 | adapter->host->max_id, adapter->host->max_channel, | |
1885 | adapter->host->max_lun); | |
1886 | return buffer; | |
1887 | } | |
1888 | ||
1889 | /* | |
1890 | * Abort a previous SCSI request. Only commands on the pending list can be | |
1891 | * aborted. All the commands issued to the F/W must complete. | |
1892 | */ | |
1893 | static int | |
1894 | megaraid_abort(Scsi_Cmnd *cmd) | |
1895 | { | |
1896 | adapter_t *adapter; | |
1897 | int rval; | |
1898 | ||
1899 | adapter = (adapter_t *)cmd->device->host->hostdata; | |
1900 | ||
1901 | rval = megaraid_abort_and_reset(adapter, cmd, SCB_ABORT); | |
1902 | ||
1903 | /* | |
1904 | * This is required here to complete any completed requests | |
1905 | * to be communicated over to the mid layer. | |
1906 | */ | |
1907 | mega_rundoneq(adapter); | |
1908 | ||
1909 | return rval; | |
1910 | } | |
1911 | ||
1912 | ||
1913 | static int | |
fa4c4966 | 1914 | megaraid_reset(struct scsi_cmnd *cmd) |
1da177e4 LT |
1915 | { |
1916 | adapter_t *adapter; | |
1917 | megacmd_t mc; | |
1918 | int rval; | |
1919 | ||
1920 | adapter = (adapter_t *)cmd->device->host->hostdata; | |
1921 | ||
1922 | #if MEGA_HAVE_CLUSTERING | |
1923 | mc.cmd = MEGA_CLUSTER_CMD; | |
1924 | mc.opcode = MEGA_RESET_RESERVATIONS; | |
1925 | ||
cb0258a2 | 1926 | if( mega_internal_command(adapter, &mc, NULL) != 0 ) { |
1da177e4 LT |
1927 | printk(KERN_WARNING |
1928 | "megaraid: reservation reset failed.\n"); | |
1929 | } | |
1930 | else { | |
1931 | printk(KERN_INFO "megaraid: reservation reset.\n"); | |
1932 | } | |
1da177e4 LT |
1933 | #endif |
1934 | ||
fa4c4966 JB |
1935 | spin_lock_irq(&adapter->lock); |
1936 | ||
1da177e4 LT |
1937 | rval = megaraid_abort_and_reset(adapter, cmd, SCB_RESET); |
1938 | ||
1939 | /* | |
1940 | * This is required here to complete any completed requests | |
1941 | * to be communicated over to the mid layer. | |
1942 | */ | |
1943 | mega_rundoneq(adapter); | |
94d0e7b8 JG |
1944 | spin_unlock_irq(&adapter->lock); |
1945 | ||
fa4c4966 | 1946 | return rval; |
94d0e7b8 | 1947 | } |
1da177e4 | 1948 | |
1da177e4 LT |
1949 | /** |
1950 | * megaraid_abort_and_reset() | |
1951 | * @adapter - megaraid soft state | |
1952 | * @cmd - scsi command to be aborted or reset | |
1953 | * @aor - abort or reset flag | |
1954 | * | |
1955 | * Try to locate the scsi command in the pending queue. If found and is not | |
1956 | * issued to the controller, abort/reset it. Otherwise return failure | |
1957 | */ | |
1958 | static int | |
1959 | megaraid_abort_and_reset(adapter_t *adapter, Scsi_Cmnd *cmd, int aor) | |
1960 | { | |
1961 | struct list_head *pos, *next; | |
1962 | scb_t *scb; | |
1963 | ||
5cd049a5 CH |
1964 | printk(KERN_WARNING "megaraid: %s cmd=%x <c=%d t=%d l=%d>\n", |
1965 | (aor == SCB_ABORT)? "ABORTING":"RESET", | |
1da177e4 LT |
1966 | cmd->cmnd[0], cmd->device->channel, |
1967 | cmd->device->id, cmd->device->lun); | |
1968 | ||
1969 | if(list_empty(&adapter->pending_list)) | |
1970 | return FALSE; | |
1971 | ||
1972 | list_for_each_safe(pos, next, &adapter->pending_list) { | |
1973 | ||
1974 | scb = list_entry(pos, scb_t, list); | |
1975 | ||
1976 | if (scb->cmd == cmd) { /* Found command */ | |
1977 | ||
1978 | scb->state |= aor; | |
1979 | ||
1980 | /* | |
d41ad938 NA |
1981 | * Check if this command has firmware ownership. If |
1982 | * yes, we cannot reset this command. Whenever f/w | |
1da177e4 LT |
1983 | * completes this command, we will return appropriate |
1984 | * status from ISR. | |
1985 | */ | |
1986 | if( scb->state & SCB_ISSUED ) { | |
1987 | ||
1988 | printk(KERN_WARNING | |
5cd049a5 | 1989 | "megaraid: %s[%x], fw owner.\n", |
1da177e4 | 1990 | (aor==SCB_ABORT) ? "ABORTING":"RESET", |
5cd049a5 | 1991 | scb->idx); |
1da177e4 LT |
1992 | |
1993 | return FALSE; | |
1994 | } | |
1995 | else { | |
1996 | ||
1997 | /* | |
1998 | * Not yet issued! Remove from the pending | |
1999 | * list | |
2000 | */ | |
2001 | printk(KERN_WARNING | |
5cd049a5 | 2002 | "megaraid: %s-[%x], driver owner.\n", |
1da177e4 | 2003 | (aor==SCB_ABORT) ? "ABORTING":"RESET", |
5cd049a5 | 2004 | scb->idx); |
1da177e4 LT |
2005 | |
2006 | mega_free_scb(adapter, scb); | |
2007 | ||
2008 | if( aor == SCB_ABORT ) { | |
2009 | cmd->result = (DID_ABORT << 16); | |
2010 | } | |
2011 | else { | |
2012 | cmd->result = (DID_RESET << 16); | |
2013 | } | |
2014 | ||
2015 | list_add_tail(SCSI_LIST(cmd), | |
2016 | &adapter->completed_list); | |
2017 | ||
2018 | return TRUE; | |
2019 | } | |
2020 | } | |
2021 | } | |
2022 | ||
2023 | return FALSE; | |
2024 | } | |
2025 | ||
2026 | static inline int | |
2027 | make_local_pdev(adapter_t *adapter, struct pci_dev **pdev) | |
2028 | { | |
bab41e9b | 2029 | *pdev = alloc_pci_dev(); |
1da177e4 LT |
2030 | |
2031 | if( *pdev == NULL ) return -1; | |
2032 | ||
2033 | memcpy(*pdev, adapter->dev, sizeof(struct pci_dev)); | |
2034 | ||
284901a9 | 2035 | if( pci_set_dma_mask(*pdev, DMA_BIT_MASK(32)) != 0 ) { |
1da177e4 LT |
2036 | kfree(*pdev); |
2037 | return -1; | |
2038 | } | |
2039 | ||
2040 | return 0; | |
2041 | } | |
2042 | ||
2043 | static inline void | |
2044 | free_local_pdev(struct pci_dev *pdev) | |
2045 | { | |
2046 | kfree(pdev); | |
2047 | } | |
2048 | ||
2049 | /** | |
2050 | * mega_allocate_inquiry() | |
2051 | * @dma_handle - handle returned for dma address | |
2052 | * @pdev - handle to pci device | |
2053 | * | |
2054 | * allocates memory for inquiry structure | |
2055 | */ | |
2056 | static inline void * | |
2057 | mega_allocate_inquiry(dma_addr_t *dma_handle, struct pci_dev *pdev) | |
2058 | { | |
2059 | return pci_alloc_consistent(pdev, sizeof(mega_inquiry3), dma_handle); | |
2060 | } | |
2061 | ||
2062 | ||
2063 | static inline void | |
2064 | mega_free_inquiry(void *inquiry, dma_addr_t dma_handle, struct pci_dev *pdev) | |
2065 | { | |
2066 | pci_free_consistent(pdev, sizeof(mega_inquiry3), inquiry, dma_handle); | |
2067 | } | |
2068 | ||
2069 | ||
2070 | #ifdef CONFIG_PROC_FS | |
2071 | /* Following code handles /proc fs */ | |
2072 | ||
2073 | #define CREATE_READ_PROC(string, func) create_proc_read_entry(string, \ | |
2074 | S_IRUSR | S_IFREG, \ | |
2075 | controller_proc_dir_entry, \ | |
2076 | func, adapter) | |
2077 | ||
2078 | /** | |
2079 | * mega_create_proc_entry() | |
2080 | * @index - index in soft state array | |
2081 | * @parent - parent node for this /proc entry | |
2082 | * | |
2083 | * Creates /proc entries for our controllers. | |
2084 | */ | |
2085 | static void | |
2086 | mega_create_proc_entry(int index, struct proc_dir_entry *parent) | |
2087 | { | |
2088 | struct proc_dir_entry *controller_proc_dir_entry = NULL; | |
2089 | u8 string[64] = { 0 }; | |
2090 | adapter_t *adapter = hba_soft_state[index]; | |
2091 | ||
2092 | sprintf(string, "hba%d", adapter->host->host_no); | |
2093 | ||
2094 | controller_proc_dir_entry = | |
2095 | adapter->controller_proc_dir_entry = proc_mkdir(string, parent); | |
2096 | ||
2097 | if(!controller_proc_dir_entry) { | |
2098 | printk(KERN_WARNING "\nmegaraid: proc_mkdir failed\n"); | |
2099 | return; | |
2100 | } | |
2101 | adapter->proc_read = CREATE_READ_PROC("config", proc_read_config); | |
2102 | adapter->proc_stat = CREATE_READ_PROC("stat", proc_read_stat); | |
2103 | adapter->proc_mbox = CREATE_READ_PROC("mailbox", proc_read_mbox); | |
2104 | #if MEGA_HAVE_ENH_PROC | |
2105 | adapter->proc_rr = CREATE_READ_PROC("rebuild-rate", proc_rebuild_rate); | |
2106 | adapter->proc_battery = CREATE_READ_PROC("battery-status", | |
2107 | proc_battery); | |
2108 | ||
2109 | /* | |
2110 | * Display each physical drive on its channel | |
2111 | */ | |
2112 | adapter->proc_pdrvstat[0] = CREATE_READ_PROC("diskdrives-ch0", | |
2113 | proc_pdrv_ch0); | |
2114 | adapter->proc_pdrvstat[1] = CREATE_READ_PROC("diskdrives-ch1", | |
2115 | proc_pdrv_ch1); | |
2116 | adapter->proc_pdrvstat[2] = CREATE_READ_PROC("diskdrives-ch2", | |
2117 | proc_pdrv_ch2); | |
2118 | adapter->proc_pdrvstat[3] = CREATE_READ_PROC("diskdrives-ch3", | |
2119 | proc_pdrv_ch3); | |
2120 | ||
2121 | /* | |
2122 | * Display a set of up to 10 logical drive through each of following | |
2123 | * /proc entries | |
2124 | */ | |
2125 | adapter->proc_rdrvstat[0] = CREATE_READ_PROC("raiddrives-0-9", | |
2126 | proc_rdrv_10); | |
2127 | adapter->proc_rdrvstat[1] = CREATE_READ_PROC("raiddrives-10-19", | |
2128 | proc_rdrv_20); | |
2129 | adapter->proc_rdrvstat[2] = CREATE_READ_PROC("raiddrives-20-29", | |
2130 | proc_rdrv_30); | |
2131 | adapter->proc_rdrvstat[3] = CREATE_READ_PROC("raiddrives-30-39", | |
2132 | proc_rdrv_40); | |
2133 | #endif | |
2134 | } | |
2135 | ||
2136 | ||
2137 | /** | |
2138 | * proc_read_config() | |
2139 | * @page - buffer to write the data in | |
2140 | * @start - where the actual data has been written in page | |
2141 | * @offset - same meaning as the read system call | |
2142 | * @count - same meaning as the read system call | |
2143 | * @eof - set if no more data needs to be returned | |
2144 | * @data - pointer to our soft state | |
2145 | * | |
2146 | * Display configuration information about the controller. | |
2147 | */ | |
2148 | static int | |
2149 | proc_read_config(char *page, char **start, off_t offset, int count, int *eof, | |
2150 | void *data) | |
2151 | { | |
2152 | ||
2153 | adapter_t *adapter = (adapter_t *)data; | |
2154 | int len = 0; | |
2155 | ||
2156 | len += sprintf(page+len, "%s", MEGARAID_VERSION); | |
2157 | ||
2158 | if(adapter->product_info.product_name[0]) | |
2159 | len += sprintf(page+len, "%s\n", | |
2160 | adapter->product_info.product_name); | |
2161 | ||
2162 | len += sprintf(page+len, "Controller Type: "); | |
2163 | ||
2164 | if( adapter->flag & BOARD_MEMMAP ) { | |
2165 | len += sprintf(page+len, | |
2166 | "438/466/467/471/493/518/520/531/532\n"); | |
2167 | } | |
2168 | else { | |
2169 | len += sprintf(page+len, | |
2170 | "418/428/434\n"); | |
2171 | } | |
2172 | ||
2173 | if(adapter->flag & BOARD_40LD) { | |
2174 | len += sprintf(page+len, | |
2175 | "Controller Supports 40 Logical Drives\n"); | |
2176 | } | |
2177 | ||
2178 | if(adapter->flag & BOARD_64BIT) { | |
2179 | len += sprintf(page+len, | |
2180 | "Controller capable of 64-bit memory addressing\n"); | |
2181 | } | |
2182 | if( adapter->has_64bit_addr ) { | |
2183 | len += sprintf(page+len, | |
2184 | "Controller using 64-bit memory addressing\n"); | |
2185 | } | |
2186 | else { | |
2187 | len += sprintf(page+len, | |
2188 | "Controller is not using 64-bit memory addressing\n"); | |
2189 | } | |
2190 | ||
2191 | len += sprintf(page+len, "Base = %08lx, Irq = %d, ", adapter->base, | |
2192 | adapter->host->irq); | |
2193 | ||
2194 | len += sprintf(page+len, "Logical Drives = %d, Channels = %d\n", | |
2195 | adapter->numldrv, adapter->product_info.nchannels); | |
2196 | ||
2197 | len += sprintf(page+len, "Version =%s:%s, DRAM = %dMb\n", | |
2198 | adapter->fw_version, adapter->bios_version, | |
2199 | adapter->product_info.dram_size); | |
2200 | ||
2201 | len += sprintf(page+len, | |
2202 | "Controller Queue Depth = %d, Driver Queue Depth = %d\n", | |
2203 | adapter->product_info.max_commands, adapter->max_cmds); | |
2204 | ||
2205 | len += sprintf(page+len, "support_ext_cdb = %d\n", | |
2206 | adapter->support_ext_cdb); | |
2207 | len += sprintf(page+len, "support_random_del = %d\n", | |
2208 | adapter->support_random_del); | |
2209 | len += sprintf(page+len, "boot_ldrv_enabled = %d\n", | |
2210 | adapter->boot_ldrv_enabled); | |
2211 | len += sprintf(page+len, "boot_ldrv = %d\n", | |
2212 | adapter->boot_ldrv); | |
2213 | len += sprintf(page+len, "boot_pdrv_enabled = %d\n", | |
2214 | adapter->boot_pdrv_enabled); | |
2215 | len += sprintf(page+len, "boot_pdrv_ch = %d\n", | |
2216 | adapter->boot_pdrv_ch); | |
2217 | len += sprintf(page+len, "boot_pdrv_tgt = %d\n", | |
2218 | adapter->boot_pdrv_tgt); | |
2219 | len += sprintf(page+len, "quiescent = %d\n", | |
2220 | atomic_read(&adapter->quiescent)); | |
2221 | len += sprintf(page+len, "has_cluster = %d\n", | |
2222 | adapter->has_cluster); | |
2223 | ||
2224 | len += sprintf(page+len, "\nModule Parameters:\n"); | |
2225 | len += sprintf(page+len, "max_cmd_per_lun = %d\n", | |
2226 | max_cmd_per_lun); | |
2227 | len += sprintf(page+len, "max_sectors_per_io = %d\n", | |
2228 | max_sectors_per_io); | |
2229 | ||
2230 | *eof = 1; | |
2231 | ||
2232 | return len; | |
2233 | } | |
2234 | ||
2235 | ||
2236 | ||
2237 | /** | |
2238 | * proc_read_stat() | |
2239 | * @page - buffer to write the data in | |
2240 | * @start - where the actual data has been written in page | |
2241 | * @offset - same meaning as the read system call | |
2242 | * @count - same meaning as the read system call | |
2243 | * @eof - set if no more data needs to be returned | |
2244 | * @data - pointer to our soft state | |
2245 | * | |
2246 | * Diaplay statistical information about the I/O activity. | |
2247 | */ | |
2248 | static int | |
2249 | proc_read_stat(char *page, char **start, off_t offset, int count, int *eof, | |
2250 | void *data) | |
2251 | { | |
2252 | adapter_t *adapter; | |
2253 | int len; | |
2254 | int i; | |
2255 | ||
2256 | i = 0; /* avoid compilation warnings */ | |
2257 | len = 0; | |
2258 | adapter = (adapter_t *)data; | |
2259 | ||
2260 | len = sprintf(page, "Statistical Information for this controller\n"); | |
2261 | len += sprintf(page+len, "pend_cmds = %d\n", | |
2262 | atomic_read(&adapter->pend_cmds)); | |
2263 | #if MEGA_HAVE_STATS | |
2264 | for(i = 0; i < adapter->numldrv; i++) { | |
2265 | len += sprintf(page+len, "Logical Drive %d:\n", i); | |
2266 | ||
2267 | len += sprintf(page+len, | |
2268 | "\tReads Issued = %lu, Writes Issued = %lu\n", | |
2269 | adapter->nreads[i], adapter->nwrites[i]); | |
2270 | ||
2271 | len += sprintf(page+len, | |
2272 | "\tSectors Read = %lu, Sectors Written = %lu\n", | |
2273 | adapter->nreadblocks[i], adapter->nwriteblocks[i]); | |
2274 | ||
2275 | len += sprintf(page+len, | |
2276 | "\tRead errors = %lu, Write errors = %lu\n\n", | |
2277 | adapter->rd_errors[i], adapter->wr_errors[i]); | |
2278 | } | |
2279 | #else | |
2280 | len += sprintf(page+len, | |
2281 | "IO and error counters not compiled in driver.\n"); | |
2282 | #endif | |
2283 | ||
2284 | *eof = 1; | |
2285 | ||
2286 | return len; | |
2287 | } | |
2288 | ||
2289 | ||
2290 | /** | |
2291 | * proc_read_mbox() | |
2292 | * @page - buffer to write the data in | |
2293 | * @start - where the actual data has been written in page | |
2294 | * @offset - same meaning as the read system call | |
2295 | * @count - same meaning as the read system call | |
2296 | * @eof - set if no more data needs to be returned | |
2297 | * @data - pointer to our soft state | |
2298 | * | |
2299 | * Display mailbox information for the last command issued. This information | |
2300 | * is good for debugging. | |
2301 | */ | |
2302 | static int | |
2303 | proc_read_mbox(char *page, char **start, off_t offset, int count, int *eof, | |
2304 | void *data) | |
2305 | { | |
2306 | ||
2307 | adapter_t *adapter = (adapter_t *)data; | |
2308 | volatile mbox_t *mbox = adapter->mbox; | |
2309 | int len = 0; | |
2310 | ||
2311 | len = sprintf(page, "Contents of Mail Box Structure\n"); | |
2312 | len += sprintf(page+len, " Fw Command = 0x%02x\n", | |
2313 | mbox->m_out.cmd); | |
2314 | len += sprintf(page+len, " Cmd Sequence = 0x%02x\n", | |
2315 | mbox->m_out.cmdid); | |
2316 | len += sprintf(page+len, " No of Sectors= %04d\n", | |
2317 | mbox->m_out.numsectors); | |
2318 | len += sprintf(page+len, " LBA = 0x%02x\n", | |
2319 | mbox->m_out.lba); | |
2320 | len += sprintf(page+len, " DTA = 0x%08x\n", | |
2321 | mbox->m_out.xferaddr); | |
2322 | len += sprintf(page+len, " Logical Drive= 0x%02x\n", | |
2323 | mbox->m_out.logdrv); | |
2324 | len += sprintf(page+len, " No of SG Elmt= 0x%02x\n", | |
2325 | mbox->m_out.numsgelements); | |
2326 | len += sprintf(page+len, " Busy = %01x\n", | |
2327 | mbox->m_in.busy); | |
2328 | len += sprintf(page+len, " Status = 0x%02x\n", | |
2329 | mbox->m_in.status); | |
2330 | ||
2331 | *eof = 1; | |
2332 | ||
2333 | return len; | |
2334 | } | |
2335 | ||
2336 | ||
2337 | /** | |
2338 | * proc_rebuild_rate() | |
2339 | * @page - buffer to write the data in | |
2340 | * @start - where the actual data has been written in page | |
2341 | * @offset - same meaning as the read system call | |
2342 | * @count - same meaning as the read system call | |
2343 | * @eof - set if no more data needs to be returned | |
2344 | * @data - pointer to our soft state | |
2345 | * | |
2346 | * Display current rebuild rate | |
2347 | */ | |
2348 | static int | |
2349 | proc_rebuild_rate(char *page, char **start, off_t offset, int count, int *eof, | |
2350 | void *data) | |
2351 | { | |
2352 | adapter_t *adapter = (adapter_t *)data; | |
2353 | dma_addr_t dma_handle; | |
2354 | caddr_t inquiry; | |
2355 | struct pci_dev *pdev; | |
2356 | int len = 0; | |
2357 | ||
2358 | if( make_local_pdev(adapter, &pdev) != 0 ) { | |
2359 | *eof = 1; | |
2360 | return len; | |
2361 | } | |
2362 | ||
2363 | if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL ) { | |
2364 | free_local_pdev(pdev); | |
2365 | *eof = 1; | |
2366 | return len; | |
2367 | } | |
2368 | ||
2369 | if( mega_adapinq(adapter, dma_handle) != 0 ) { | |
2370 | ||
2371 | len = sprintf(page, "Adapter inquiry failed.\n"); | |
2372 | ||
2373 | printk(KERN_WARNING "megaraid: inquiry failed.\n"); | |
2374 | ||
2375 | mega_free_inquiry(inquiry, dma_handle, pdev); | |
2376 | ||
2377 | free_local_pdev(pdev); | |
2378 | ||
2379 | *eof = 1; | |
2380 | ||
2381 | return len; | |
2382 | } | |
2383 | ||
2384 | if( adapter->flag & BOARD_40LD ) { | |
2385 | len = sprintf(page, "Rebuild Rate: [%d%%]\n", | |
2386 | ((mega_inquiry3 *)inquiry)->rebuild_rate); | |
2387 | } | |
2388 | else { | |
2389 | len = sprintf(page, "Rebuild Rate: [%d%%]\n", | |
2390 | ((mraid_ext_inquiry *) | |
2391 | inquiry)->raid_inq.adapter_info.rebuild_rate); | |
2392 | } | |
2393 | ||
2394 | ||
2395 | mega_free_inquiry(inquiry, dma_handle, pdev); | |
2396 | ||
2397 | free_local_pdev(pdev); | |
2398 | ||
2399 | *eof = 1; | |
2400 | ||
2401 | return len; | |
2402 | } | |
2403 | ||
2404 | ||
2405 | /** | |
2406 | * proc_battery() | |
2407 | * @page - buffer to write the data in | |
2408 | * @start - where the actual data has been written in page | |
2409 | * @offset - same meaning as the read system call | |
2410 | * @count - same meaning as the read system call | |
2411 | * @eof - set if no more data needs to be returned | |
2412 | * @data - pointer to our soft state | |
2413 | * | |
2414 | * Display information about the battery module on the controller. | |
2415 | */ | |
2416 | static int | |
2417 | proc_battery(char *page, char **start, off_t offset, int count, int *eof, | |
2418 | void *data) | |
2419 | { | |
2420 | adapter_t *adapter = (adapter_t *)data; | |
2421 | dma_addr_t dma_handle; | |
2422 | caddr_t inquiry; | |
2423 | struct pci_dev *pdev; | |
2424 | u8 battery_status = 0; | |
2425 | char str[256]; | |
2426 | int len = 0; | |
2427 | ||
2428 | if( make_local_pdev(adapter, &pdev) != 0 ) { | |
2429 | *eof = 1; | |
2430 | return len; | |
2431 | } | |
2432 | ||
2433 | if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL ) { | |
2434 | free_local_pdev(pdev); | |
2435 | *eof = 1; | |
2436 | return len; | |
2437 | } | |
2438 | ||
2439 | if( mega_adapinq(adapter, dma_handle) != 0 ) { | |
2440 | ||
2441 | len = sprintf(page, "Adapter inquiry failed.\n"); | |
2442 | ||
2443 | printk(KERN_WARNING "megaraid: inquiry failed.\n"); | |
2444 | ||
2445 | mega_free_inquiry(inquiry, dma_handle, pdev); | |
2446 | ||
2447 | free_local_pdev(pdev); | |
2448 | ||
2449 | *eof = 1; | |
2450 | ||
2451 | return len; | |
2452 | } | |
2453 | ||
2454 | if( adapter->flag & BOARD_40LD ) { | |
2455 | battery_status = ((mega_inquiry3 *)inquiry)->battery_status; | |
2456 | } | |
2457 | else { | |
2458 | battery_status = ((mraid_ext_inquiry *)inquiry)-> | |
2459 | raid_inq.adapter_info.battery_status; | |
2460 | } | |
2461 | ||
2462 | /* | |
2463 | * Decode the battery status | |
2464 | */ | |
2465 | sprintf(str, "Battery Status:[%d]", battery_status); | |
2466 | ||
2467 | if(battery_status == MEGA_BATT_CHARGE_DONE) | |
2468 | strcat(str, " Charge Done"); | |
2469 | ||
2470 | if(battery_status & MEGA_BATT_MODULE_MISSING) | |
2471 | strcat(str, " Module Missing"); | |
2472 | ||
2473 | if(battery_status & MEGA_BATT_LOW_VOLTAGE) | |
2474 | strcat(str, " Low Voltage"); | |
2475 | ||
2476 | if(battery_status & MEGA_BATT_TEMP_HIGH) | |
2477 | strcat(str, " Temperature High"); | |
2478 | ||
2479 | if(battery_status & MEGA_BATT_PACK_MISSING) | |
2480 | strcat(str, " Pack Missing"); | |
2481 | ||
2482 | if(battery_status & MEGA_BATT_CHARGE_INPROG) | |
2483 | strcat(str, " Charge In-progress"); | |
2484 | ||
2485 | if(battery_status & MEGA_BATT_CHARGE_FAIL) | |
2486 | strcat(str, " Charge Fail"); | |
2487 | ||
2488 | if(battery_status & MEGA_BATT_CYCLES_EXCEEDED) | |
2489 | strcat(str, " Cycles Exceeded"); | |
2490 | ||
2491 | len = sprintf(page, "%s\n", str); | |
2492 | ||
2493 | ||
2494 | mega_free_inquiry(inquiry, dma_handle, pdev); | |
2495 | ||
2496 | free_local_pdev(pdev); | |
2497 | ||
2498 | *eof = 1; | |
2499 | ||
2500 | return len; | |
2501 | } | |
2502 | ||
2503 | ||
2504 | /** | |
2505 | * proc_pdrv_ch0() | |
2506 | * @page - buffer to write the data in | |
2507 | * @start - where the actual data has been written in page | |
2508 | * @offset - same meaning as the read system call | |
2509 | * @count - same meaning as the read system call | |
2510 | * @eof - set if no more data needs to be returned | |
2511 | * @data - pointer to our soft state | |
2512 | * | |
2513 | * Display information about the physical drives on physical channel 0. | |
2514 | */ | |
2515 | static int | |
2516 | proc_pdrv_ch0(char *page, char **start, off_t offset, int count, int *eof, | |
2517 | void *data) | |
2518 | { | |
2519 | adapter_t *adapter = (adapter_t *)data; | |
2520 | ||
2521 | *eof = 1; | |
2522 | ||
2523 | return (proc_pdrv(adapter, page, 0)); | |
2524 | } | |
2525 | ||
2526 | ||
2527 | /** | |
2528 | * proc_pdrv_ch1() | |
2529 | * @page - buffer to write the data in | |
2530 | * @start - where the actual data has been written in page | |
2531 | * @offset - same meaning as the read system call | |
2532 | * @count - same meaning as the read system call | |
2533 | * @eof - set if no more data needs to be returned | |
2534 | * @data - pointer to our soft state | |
2535 | * | |
2536 | * Display information about the physical drives on physical channel 1. | |
2537 | */ | |
2538 | static int | |
2539 | proc_pdrv_ch1(char *page, char **start, off_t offset, int count, int *eof, | |
2540 | void *data) | |
2541 | { | |
2542 | adapter_t *adapter = (adapter_t *)data; | |
2543 | ||
2544 | *eof = 1; | |
2545 | ||
2546 | return (proc_pdrv(adapter, page, 1)); | |
2547 | } | |
2548 | ||
2549 | ||
2550 | /** | |
2551 | * proc_pdrv_ch2() | |
2552 | * @page - buffer to write the data in | |
2553 | * @start - where the actual data has been written in page | |
2554 | * @offset - same meaning as the read system call | |
2555 | * @count - same meaning as the read system call | |
2556 | * @eof - set if no more data needs to be returned | |
2557 | * @data - pointer to our soft state | |
2558 | * | |
2559 | * Display information about the physical drives on physical channel 2. | |
2560 | */ | |
2561 | static int | |
2562 | proc_pdrv_ch2(char *page, char **start, off_t offset, int count, int *eof, | |
2563 | void *data) | |
2564 | { | |
2565 | adapter_t *adapter = (adapter_t *)data; | |
2566 | ||
2567 | *eof = 1; | |
2568 | ||
2569 | return (proc_pdrv(adapter, page, 2)); | |
2570 | } | |
2571 | ||
2572 | ||
2573 | /** | |
2574 | * proc_pdrv_ch3() | |
2575 | * @page - buffer to write the data in | |
2576 | * @start - where the actual data has been written in page | |
2577 | * @offset - same meaning as the read system call | |
2578 | * @count - same meaning as the read system call | |
2579 | * @eof - set if no more data needs to be returned | |
2580 | * @data - pointer to our soft state | |
2581 | * | |
2582 | * Display information about the physical drives on physical channel 3. | |
2583 | */ | |
2584 | static int | |
2585 | proc_pdrv_ch3(char *page, char **start, off_t offset, int count, int *eof, | |
2586 | void *data) | |
2587 | { | |
2588 | adapter_t *adapter = (adapter_t *)data; | |
2589 | ||
2590 | *eof = 1; | |
2591 | ||
2592 | return (proc_pdrv(adapter, page, 3)); | |
2593 | } | |
2594 | ||
2595 | ||
2596 | /** | |
2597 | * proc_pdrv() | |
2598 | * @page - buffer to write the data in | |
2599 | * @adapter - pointer to our soft state | |
2600 | * | |
2601 | * Display information about the physical drives. | |
2602 | */ | |
2603 | static int | |
2604 | proc_pdrv(adapter_t *adapter, char *page, int channel) | |
2605 | { | |
2606 | dma_addr_t dma_handle; | |
2607 | char *scsi_inq; | |
2608 | dma_addr_t scsi_inq_dma_handle; | |
2609 | caddr_t inquiry; | |
2610 | struct pci_dev *pdev; | |
2611 | u8 *pdrv_state; | |
2612 | u8 state; | |
2613 | int tgt; | |
2614 | int max_channels; | |
2615 | int len = 0; | |
2616 | char str[80]; | |
2617 | int i; | |
2618 | ||
2619 | if( make_local_pdev(adapter, &pdev) != 0 ) { | |
2620 | return len; | |
2621 | } | |
2622 | ||
2623 | if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL ) { | |
2624 | goto free_pdev; | |
2625 | } | |
2626 | ||
2627 | if( mega_adapinq(adapter, dma_handle) != 0 ) { | |
2628 | len = sprintf(page, "Adapter inquiry failed.\n"); | |
2629 | ||
2630 | printk(KERN_WARNING "megaraid: inquiry failed.\n"); | |
2631 | ||
2632 | goto free_inquiry; | |
2633 | } | |
2634 | ||
2635 | ||
2636 | scsi_inq = pci_alloc_consistent(pdev, 256, &scsi_inq_dma_handle); | |
2637 | ||
2638 | if( scsi_inq == NULL ) { | |
2639 | len = sprintf(page, "memory not available for scsi inq.\n"); | |
2640 | ||
2641 | goto free_inquiry; | |
2642 | } | |
2643 | ||
2644 | if( adapter->flag & BOARD_40LD ) { | |
2645 | pdrv_state = ((mega_inquiry3 *)inquiry)->pdrv_state; | |
2646 | } | |
2647 | else { | |
2648 | pdrv_state = ((mraid_ext_inquiry *)inquiry)-> | |
2649 | raid_inq.pdrv_info.pdrv_state; | |
2650 | } | |
2651 | ||
2652 | max_channels = adapter->product_info.nchannels; | |
2653 | ||
2654 | if( channel >= max_channels ) { | |
2655 | goto free_pci; | |
2656 | } | |
2657 | ||
2658 | for( tgt = 0; tgt <= MAX_TARGET; tgt++ ) { | |
2659 | ||
2660 | i = channel*16 + tgt; | |
2661 | ||
2662 | state = *(pdrv_state + i); | |
2663 | ||
2664 | switch( state & 0x0F ) { | |
2665 | ||
2666 | case PDRV_ONLINE: | |
2667 | sprintf(str, | |
2668 | "Channel:%2d Id:%2d State: Online", | |
2669 | channel, tgt); | |
2670 | break; | |
2671 | ||
2672 | case PDRV_FAILED: | |
2673 | sprintf(str, | |
2674 | "Channel:%2d Id:%2d State: Failed", | |
2675 | channel, tgt); | |
2676 | break; | |
2677 | ||
2678 | case PDRV_RBLD: | |
2679 | sprintf(str, | |
2680 | "Channel:%2d Id:%2d State: Rebuild", | |
2681 | channel, tgt); | |
2682 | break; | |
2683 | ||
2684 | case PDRV_HOTSPARE: | |
2685 | sprintf(str, | |
2686 | "Channel:%2d Id:%2d State: Hot spare", | |
2687 | channel, tgt); | |
2688 | break; | |
2689 | ||
2690 | default: | |
2691 | sprintf(str, | |
2692 | "Channel:%2d Id:%2d State: Un-configured", | |
2693 | channel, tgt); | |
2694 | break; | |
2695 | ||
2696 | } | |
2697 | ||
2698 | /* | |
2699 | * This interface displays inquiries for disk drives | |
2700 | * only. Inquries for logical drives and non-disk | |
2701 | * devices are available through /proc/scsi/scsi | |
2702 | */ | |
2703 | memset(scsi_inq, 0, 256); | |
2704 | if( mega_internal_dev_inquiry(adapter, channel, tgt, | |
2705 | scsi_inq_dma_handle) || | |
2706 | (scsi_inq[0] & 0x1F) != TYPE_DISK ) { | |
2707 | continue; | |
2708 | } | |
2709 | ||
2710 | /* | |
2711 | * Check for overflow. We print less than 240 | |
2712 | * characters for inquiry | |
2713 | */ | |
2714 | if( (len + 240) >= PAGE_SIZE ) break; | |
2715 | ||
2716 | len += sprintf(page+len, "%s.\n", str); | |
2717 | ||
2718 | len += mega_print_inquiry(page+len, scsi_inq); | |
2719 | } | |
2720 | ||
2721 | free_pci: | |
2722 | pci_free_consistent(pdev, 256, scsi_inq, scsi_inq_dma_handle); | |
2723 | free_inquiry: | |
2724 | mega_free_inquiry(inquiry, dma_handle, pdev); | |
2725 | free_pdev: | |
2726 | free_local_pdev(pdev); | |
2727 | ||
2728 | return len; | |
2729 | } | |
2730 | ||
2731 | ||
2732 | /* | |
2733 | * Display scsi inquiry | |
2734 | */ | |
2735 | static int | |
2736 | mega_print_inquiry(char *page, char *scsi_inq) | |
2737 | { | |
2738 | int len = 0; | |
2739 | int i; | |
2740 | ||
2741 | len = sprintf(page, " Vendor: "); | |
2742 | for( i = 8; i < 16; i++ ) { | |
2743 | len += sprintf(page+len, "%c", scsi_inq[i]); | |
2744 | } | |
2745 | ||
2746 | len += sprintf(page+len, " Model: "); | |
2747 | ||
2748 | for( i = 16; i < 32; i++ ) { | |
2749 | len += sprintf(page+len, "%c", scsi_inq[i]); | |
2750 | } | |
2751 | ||
2752 | len += sprintf(page+len, " Rev: "); | |
2753 | ||
2754 | for( i = 32; i < 36; i++ ) { | |
2755 | len += sprintf(page+len, "%c", scsi_inq[i]); | |
2756 | } | |
2757 | ||
2758 | len += sprintf(page+len, "\n"); | |
2759 | ||
2760 | i = scsi_inq[0] & 0x1f; | |
2761 | ||
4ff36718 | 2762 | len += sprintf(page+len, " Type: %s ", scsi_device_type(i)); |
1da177e4 LT |
2763 | |
2764 | len += sprintf(page+len, | |
2765 | " ANSI SCSI revision: %02x", scsi_inq[2] & 0x07); | |
2766 | ||
2767 | if( (scsi_inq[2] & 0x07) == 1 && (scsi_inq[3] & 0x0f) == 1 ) | |
2768 | len += sprintf(page+len, " CCS\n"); | |
2769 | else | |
2770 | len += sprintf(page+len, "\n"); | |
2771 | ||
2772 | return len; | |
2773 | } | |
2774 | ||
2775 | ||
2776 | /** | |
2777 | * proc_rdrv_10() | |
2778 | * @page - buffer to write the data in | |
2779 | * @start - where the actual data has been written in page | |
2780 | * @offset - same meaning as the read system call | |
2781 | * @count - same meaning as the read system call | |
2782 | * @eof - set if no more data needs to be returned | |
2783 | * @data - pointer to our soft state | |
2784 | * | |
2785 | * Display real time information about the logical drives 0 through 9. | |
2786 | */ | |
2787 | static int | |
2788 | proc_rdrv_10(char *page, char **start, off_t offset, int count, int *eof, | |
2789 | void *data) | |
2790 | { | |
2791 | adapter_t *adapter = (adapter_t *)data; | |
2792 | ||
2793 | *eof = 1; | |
2794 | ||
2795 | return (proc_rdrv(adapter, page, 0, 9)); | |
2796 | } | |
2797 | ||
2798 | ||
2799 | /** | |
2800 | * proc_rdrv_20() | |
2801 | * @page - buffer to write the data in | |
2802 | * @start - where the actual data has been written in page | |
2803 | * @offset - same meaning as the read system call | |
2804 | * @count - same meaning as the read system call | |
2805 | * @eof - set if no more data needs to be returned | |
2806 | * @data - pointer to our soft state | |
2807 | * | |
2808 | * Display real time information about the logical drives 0 through 9. | |
2809 | */ | |
2810 | static int | |
2811 | proc_rdrv_20(char *page, char **start, off_t offset, int count, int *eof, | |
2812 | void *data) | |
2813 | { | |
2814 | adapter_t *adapter = (adapter_t *)data; | |
2815 | ||
2816 | *eof = 1; | |
2817 | ||
2818 | return (proc_rdrv(adapter, page, 10, 19)); | |
2819 | } | |
2820 | ||
2821 | ||
2822 | /** | |
2823 | * proc_rdrv_30() | |
2824 | * @page - buffer to write the data in | |
2825 | * @start - where the actual data has been written in page | |
2826 | * @offset - same meaning as the read system call | |
2827 | * @count - same meaning as the read system call | |
2828 | * @eof - set if no more data needs to be returned | |
2829 | * @data - pointer to our soft state | |
2830 | * | |
2831 | * Display real time information about the logical drives 0 through 9. | |
2832 | */ | |
2833 | static int | |
2834 | proc_rdrv_30(char *page, char **start, off_t offset, int count, int *eof, | |
2835 | void *data) | |
2836 | { | |
2837 | adapter_t *adapter = (adapter_t *)data; | |
2838 | ||
2839 | *eof = 1; | |
2840 | ||
2841 | return (proc_rdrv(adapter, page, 20, 29)); | |
2842 | } | |
2843 | ||
2844 | ||
2845 | /** | |
2846 | * proc_rdrv_40() | |
2847 | * @page - buffer to write the data in | |
2848 | * @start - where the actual data has been written in page | |
2849 | * @offset - same meaning as the read system call | |
2850 | * @count - same meaning as the read system call | |
2851 | * @eof - set if no more data needs to be returned | |
2852 | * @data - pointer to our soft state | |
2853 | * | |
2854 | * Display real time information about the logical drives 0 through 9. | |
2855 | */ | |
2856 | static int | |
2857 | proc_rdrv_40(char *page, char **start, off_t offset, int count, int *eof, | |
2858 | void *data) | |
2859 | { | |
2860 | adapter_t *adapter = (adapter_t *)data; | |
2861 | ||
2862 | *eof = 1; | |
2863 | ||
2864 | return (proc_rdrv(adapter, page, 30, 39)); | |
2865 | } | |
2866 | ||
2867 | ||
2868 | /** | |
2869 | * proc_rdrv() | |
2870 | * @page - buffer to write the data in | |
2871 | * @adapter - pointer to our soft state | |
2872 | * @start - starting logical drive to display | |
2873 | * @end - ending logical drive to display | |
2874 | * | |
2875 | * We do not print the inquiry information since its already available through | |
2876 | * /proc/scsi/scsi interface | |
2877 | */ | |
2878 | static int | |
2879 | proc_rdrv(adapter_t *adapter, char *page, int start, int end ) | |
2880 | { | |
2881 | dma_addr_t dma_handle; | |
2882 | logdrv_param *lparam; | |
2883 | megacmd_t mc; | |
2884 | char *disk_array; | |
2885 | dma_addr_t disk_array_dma_handle; | |
2886 | caddr_t inquiry; | |
2887 | struct pci_dev *pdev; | |
2888 | u8 *rdrv_state; | |
2889 | int num_ldrv; | |
2890 | u32 array_sz; | |
2891 | int len = 0; | |
2892 | int i; | |
2893 | ||
2894 | if( make_local_pdev(adapter, &pdev) != 0 ) { | |
2895 | return len; | |
2896 | } | |
2897 | ||
2898 | if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL ) { | |
2899 | free_local_pdev(pdev); | |
2900 | return len; | |
2901 | } | |
2902 | ||
2903 | if( mega_adapinq(adapter, dma_handle) != 0 ) { | |
2904 | ||
2905 | len = sprintf(page, "Adapter inquiry failed.\n"); | |
2906 | ||
2907 | printk(KERN_WARNING "megaraid: inquiry failed.\n"); | |
2908 | ||
2909 | mega_free_inquiry(inquiry, dma_handle, pdev); | |
2910 | ||
2911 | free_local_pdev(pdev); | |
2912 | ||
2913 | return len; | |
2914 | } | |
2915 | ||
2916 | memset(&mc, 0, sizeof(megacmd_t)); | |
2917 | ||
2918 | if( adapter->flag & BOARD_40LD ) { | |
2919 | array_sz = sizeof(disk_array_40ld); | |
2920 | ||
2921 | rdrv_state = ((mega_inquiry3 *)inquiry)->ldrv_state; | |
2922 | ||
2923 | num_ldrv = ((mega_inquiry3 *)inquiry)->num_ldrv; | |
2924 | } | |
2925 | else { | |
2926 | array_sz = sizeof(disk_array_8ld); | |
2927 | ||
2928 | rdrv_state = ((mraid_ext_inquiry *)inquiry)-> | |
2929 | raid_inq.logdrv_info.ldrv_state; | |
2930 | ||
2931 | num_ldrv = ((mraid_ext_inquiry *)inquiry)-> | |
2932 | raid_inq.logdrv_info.num_ldrv; | |
2933 | } | |
2934 | ||
2935 | disk_array = pci_alloc_consistent(pdev, array_sz, | |
2936 | &disk_array_dma_handle); | |
2937 | ||
2938 | if( disk_array == NULL ) { | |
2939 | len = sprintf(page, "memory not available.\n"); | |
2940 | ||
2941 | mega_free_inquiry(inquiry, dma_handle, pdev); | |
2942 | ||
2943 | free_local_pdev(pdev); | |
2944 | ||
2945 | return len; | |
2946 | } | |
2947 | ||
2948 | mc.xferaddr = (u32)disk_array_dma_handle; | |
2949 | ||
2950 | if( adapter->flag & BOARD_40LD ) { | |
2951 | mc.cmd = FC_NEW_CONFIG; | |
2952 | mc.opcode = OP_DCMD_READ_CONFIG; | |
2953 | ||
cb0258a2 | 2954 | if( mega_internal_command(adapter, &mc, NULL) ) { |
1da177e4 LT |
2955 | |
2956 | len = sprintf(page, "40LD read config failed.\n"); | |
2957 | ||
2958 | mega_free_inquiry(inquiry, dma_handle, pdev); | |
2959 | ||
2960 | pci_free_consistent(pdev, array_sz, disk_array, | |
2961 | disk_array_dma_handle); | |
2962 | ||
2963 | free_local_pdev(pdev); | |
2964 | ||
2965 | return len; | |
2966 | } | |
2967 | ||
2968 | } | |
2969 | else { | |
2970 | mc.cmd = NEW_READ_CONFIG_8LD; | |
2971 | ||
cb0258a2 | 2972 | if( mega_internal_command(adapter, &mc, NULL) ) { |
1da177e4 LT |
2973 | |
2974 | mc.cmd = READ_CONFIG_8LD; | |
2975 | ||
cb0258a2 | 2976 | if( mega_internal_command(adapter, &mc, |
1da177e4 LT |
2977 | NULL) ){ |
2978 | ||
2979 | len = sprintf(page, | |
2980 | "8LD read config failed.\n"); | |
2981 | ||
2982 | mega_free_inquiry(inquiry, dma_handle, pdev); | |
2983 | ||
2984 | pci_free_consistent(pdev, array_sz, | |
2985 | disk_array, | |
2986 | disk_array_dma_handle); | |
2987 | ||
2988 | free_local_pdev(pdev); | |
2989 | ||
2990 | return len; | |
2991 | } | |
2992 | } | |
2993 | } | |
2994 | ||
2995 | for( i = start; i < ( (end+1 < num_ldrv) ? end+1 : num_ldrv ); i++ ) { | |
2996 | ||
2997 | if( adapter->flag & BOARD_40LD ) { | |
2998 | lparam = | |
2999 | &((disk_array_40ld *)disk_array)->ldrv[i].lparam; | |
3000 | } | |
3001 | else { | |
3002 | lparam = | |
3003 | &((disk_array_8ld *)disk_array)->ldrv[i].lparam; | |
3004 | } | |
3005 | ||
3006 | /* | |
3007 | * Check for overflow. We print less than 240 characters for | |
3008 | * information about each logical drive. | |
3009 | */ | |
3010 | if( (len + 240) >= PAGE_SIZE ) break; | |
3011 | ||
3012 | len += sprintf(page+len, "Logical drive:%2d:, ", i); | |
3013 | ||
3014 | switch( rdrv_state[i] & 0x0F ) { | |
3015 | case RDRV_OFFLINE: | |
3016 | len += sprintf(page+len, "state: offline"); | |
3017 | break; | |
3018 | ||
3019 | case RDRV_DEGRADED: | |
3020 | len += sprintf(page+len, "state: degraded"); | |
3021 | break; | |
3022 | ||
3023 | case RDRV_OPTIMAL: | |
3024 | len += sprintf(page+len, "state: optimal"); | |
3025 | break; | |
3026 | ||
3027 | case RDRV_DELETED: | |
3028 | len += sprintf(page+len, "state: deleted"); | |
3029 | break; | |
3030 | ||
3031 | default: | |
3032 | len += sprintf(page+len, "state: unknown"); | |
3033 | break; | |
3034 | } | |
3035 | ||
3036 | /* | |
3037 | * Check if check consistency or initialization is going on | |
3038 | * for this logical drive. | |
3039 | */ | |
3040 | if( (rdrv_state[i] & 0xF0) == 0x20 ) { | |
3041 | len += sprintf(page+len, | |
3042 | ", check-consistency in progress"); | |
3043 | } | |
3044 | else if( (rdrv_state[i] & 0xF0) == 0x10 ) { | |
3045 | len += sprintf(page+len, | |
3046 | ", initialization in progress"); | |
3047 | } | |
3048 | ||
3049 | len += sprintf(page+len, "\n"); | |
3050 | ||
3051 | len += sprintf(page+len, "Span depth:%3d, ", | |
3052 | lparam->span_depth); | |
3053 | ||
3054 | len += sprintf(page+len, "RAID level:%3d, ", | |
3055 | lparam->level); | |
3056 | ||
3057 | len += sprintf(page+len, "Stripe size:%3d, ", | |
3058 | lparam->stripe_sz ? lparam->stripe_sz/2: 128); | |
3059 | ||
3060 | len += sprintf(page+len, "Row size:%3d\n", | |
3061 | lparam->row_size); | |
3062 | ||
3063 | ||
3064 | len += sprintf(page+len, "Read Policy: "); | |
3065 | ||
3066 | switch(lparam->read_ahead) { | |
3067 | ||
3068 | case NO_READ_AHEAD: | |
3069 | len += sprintf(page+len, "No read ahead, "); | |
3070 | break; | |
3071 | ||
3072 | case READ_AHEAD: | |
3073 | len += sprintf(page+len, "Read ahead, "); | |
3074 | break; | |
3075 | ||
3076 | case ADAP_READ_AHEAD: | |
3077 | len += sprintf(page+len, "Adaptive, "); | |
3078 | break; | |
3079 | ||
3080 | } | |
3081 | ||
3082 | len += sprintf(page+len, "Write Policy: "); | |
3083 | ||
3084 | switch(lparam->write_mode) { | |
3085 | ||
3086 | case WRMODE_WRITE_THRU: | |
3087 | len += sprintf(page+len, "Write thru, "); | |
3088 | break; | |
3089 | ||
3090 | case WRMODE_WRITE_BACK: | |
3091 | len += sprintf(page+len, "Write back, "); | |
3092 | break; | |
3093 | } | |
3094 | ||
3095 | len += sprintf(page+len, "Cache Policy: "); | |
3096 | ||
3097 | switch(lparam->direct_io) { | |
3098 | ||
3099 | case CACHED_IO: | |
3100 | len += sprintf(page+len, "Cached IO\n\n"); | |
3101 | break; | |
3102 | ||
3103 | case DIRECT_IO: | |
3104 | len += sprintf(page+len, "Direct IO\n\n"); | |
3105 | break; | |
3106 | } | |
3107 | } | |
3108 | ||
3109 | mega_free_inquiry(inquiry, dma_handle, pdev); | |
3110 | ||
3111 | pci_free_consistent(pdev, array_sz, disk_array, | |
3112 | disk_array_dma_handle); | |
3113 | ||
3114 | free_local_pdev(pdev); | |
3115 | ||
3116 | return len; | |
3117 | } | |
84a3c97b | 3118 | #else |
3119 | static inline void mega_create_proc_entry(int index, struct proc_dir_entry *parent) | |
3120 | { | |
3121 | } | |
1da177e4 LT |
3122 | #endif |
3123 | ||
3124 | ||
3125 | /** | |
3126 | * megaraid_biosparam() | |
3127 | * | |
3128 | * Return the disk geometry for a particular disk | |
3129 | */ | |
3130 | static int | |
3131 | megaraid_biosparam(struct scsi_device *sdev, struct block_device *bdev, | |
3132 | sector_t capacity, int geom[]) | |
3133 | { | |
3134 | adapter_t *adapter; | |
3135 | unsigned char *bh; | |
3136 | int heads; | |
3137 | int sectors; | |
3138 | int cylinders; | |
3139 | int rval; | |
3140 | ||
3141 | /* Get pointer to host config structure */ | |
3142 | adapter = (adapter_t *)sdev->host->hostdata; | |
3143 | ||
3144 | if (IS_RAID_CH(adapter, sdev->channel)) { | |
3145 | /* Default heads (64) & sectors (32) */ | |
3146 | heads = 64; | |
3147 | sectors = 32; | |
3148 | cylinders = (ulong)capacity / (heads * sectors); | |
3149 | ||
3150 | /* | |
3151 | * Handle extended translation size for logical drives | |
3152 | * > 1Gb | |
3153 | */ | |
3154 | if ((ulong)capacity >= 0x200000) { | |
3155 | heads = 255; | |
3156 | sectors = 63; | |
3157 | cylinders = (ulong)capacity / (heads * sectors); | |
3158 | } | |
3159 | ||
3160 | /* return result */ | |
3161 | geom[0] = heads; | |
3162 | geom[1] = sectors; | |
3163 | geom[2] = cylinders; | |
3164 | } | |
3165 | else { | |
3166 | bh = scsi_bios_ptable(bdev); | |
3167 | ||
3168 | if( bh ) { | |
3169 | rval = scsi_partsize(bh, capacity, | |
3170 | &geom[2], &geom[0], &geom[1]); | |
3171 | kfree(bh); | |
3172 | if( rval != -1 ) | |
3173 | return rval; | |
3174 | } | |
3175 | ||
3176 | printk(KERN_INFO | |
3177 | "megaraid: invalid partition on this disk on channel %d\n", | |
3178 | sdev->channel); | |
3179 | ||
3180 | /* Default heads (64) & sectors (32) */ | |
3181 | heads = 64; | |
3182 | sectors = 32; | |
3183 | cylinders = (ulong)capacity / (heads * sectors); | |
3184 | ||
3185 | /* Handle extended translation size for logical drives > 1Gb */ | |
3186 | if ((ulong)capacity >= 0x200000) { | |
3187 | heads = 255; | |
3188 | sectors = 63; | |
3189 | cylinders = (ulong)capacity / (heads * sectors); | |
3190 | } | |
3191 | ||
3192 | /* return result */ | |
3193 | geom[0] = heads; | |
3194 | geom[1] = sectors; | |
3195 | geom[2] = cylinders; | |
3196 | } | |
3197 | ||
3198 | return 0; | |
3199 | } | |
3200 | ||
3201 | /** | |
3202 | * mega_init_scb() | |
3203 | * @adapter - pointer to our soft state | |
3204 | * | |
3205 | * Allocate memory for the various pointers in the scb structures: | |
3206 | * scatter-gather list pointer, passthru and extended passthru structure | |
3207 | * pointers. | |
3208 | */ | |
3209 | static int | |
3210 | mega_init_scb(adapter_t *adapter) | |
3211 | { | |
3212 | scb_t *scb; | |
3213 | int i; | |
3214 | ||
3215 | for( i = 0; i < adapter->max_cmds; i++ ) { | |
3216 | ||
3217 | scb = &adapter->scb_list[i]; | |
3218 | ||
3219 | scb->sgl64 = NULL; | |
3220 | scb->sgl = NULL; | |
3221 | scb->pthru = NULL; | |
3222 | scb->epthru = NULL; | |
3223 | } | |
3224 | ||
3225 | for( i = 0; i < adapter->max_cmds; i++ ) { | |
3226 | ||
3227 | scb = &adapter->scb_list[i]; | |
3228 | ||
3229 | scb->idx = i; | |
3230 | ||
3231 | scb->sgl64 = pci_alloc_consistent(adapter->dev, | |
3232 | sizeof(mega_sgl64) * adapter->sglen, | |
3233 | &scb->sgl_dma_addr); | |
3234 | ||
3235 | scb->sgl = (mega_sglist *)scb->sgl64; | |
3236 | ||
3237 | if( !scb->sgl ) { | |
3238 | printk(KERN_WARNING "RAID: Can't allocate sglist.\n"); | |
3239 | mega_free_sgl(adapter); | |
3240 | return -1; | |
3241 | } | |
3242 | ||
3243 | scb->pthru = pci_alloc_consistent(adapter->dev, | |
3244 | sizeof(mega_passthru), | |
3245 | &scb->pthru_dma_addr); | |
3246 | ||
3247 | if( !scb->pthru ) { | |
3248 | printk(KERN_WARNING "RAID: Can't allocate passthru.\n"); | |
3249 | mega_free_sgl(adapter); | |
3250 | return -1; | |
3251 | } | |
3252 | ||
3253 | scb->epthru = pci_alloc_consistent(adapter->dev, | |
3254 | sizeof(mega_ext_passthru), | |
3255 | &scb->epthru_dma_addr); | |
3256 | ||
3257 | if( !scb->epthru ) { | |
3258 | printk(KERN_WARNING | |
3259 | "Can't allocate extended passthru.\n"); | |
3260 | mega_free_sgl(adapter); | |
3261 | return -1; | |
3262 | } | |
3263 | ||
3264 | ||
3265 | scb->dma_type = MEGA_DMA_TYPE_NONE; | |
3266 | ||
3267 | /* | |
3268 | * Link to free list | |
3269 | * lock not required since we are loading the driver, so no | |
3270 | * commands possible right now. | |
3271 | */ | |
3272 | scb->state = SCB_FREE; | |
3273 | scb->cmd = NULL; | |
3274 | list_add(&scb->list, &adapter->free_list); | |
3275 | } | |
3276 | ||
3277 | return 0; | |
3278 | } | |
3279 | ||
3280 | ||
3281 | /** | |
3282 | * megadev_open() | |
3283 | * @inode - unused | |
3284 | * @filep - unused | |
3285 | * | |
3286 | * Routines for the character/ioctl interface to the driver. Find out if this | |
d21c95c5 | 3287 | * is a valid open. |
1da177e4 LT |
3288 | */ |
3289 | static int | |
3290 | megadev_open (struct inode *inode, struct file *filep) | |
3291 | { | |
3292 | /* | |
3293 | * Only allow superuser to access private ioctl interface | |
3294 | */ | |
3295 | if( !capable(CAP_SYS_ADMIN) ) return -EACCES; | |
3296 | ||
3297 | return 0; | |
3298 | } | |
3299 | ||
3300 | ||
3301 | /** | |
3302 | * megadev_ioctl() | |
3303 | * @inode - Our device inode | |
3304 | * @filep - unused | |
3305 | * @cmd - ioctl command | |
3306 | * @arg - user buffer | |
3307 | * | |
3308 | * ioctl entry point for our private ioctl interface. We move the data in from | |
3309 | * the user space, prepare the command (if necessary, convert the old MIMD | |
3310 | * ioctl to new ioctl command), and issue a synchronous command to the | |
3311 | * controller. | |
3312 | */ | |
3313 | static int | |
f4927c45 | 3314 | megadev_ioctl(struct file *filep, unsigned int cmd, unsigned long arg) |
1da177e4 LT |
3315 | { |
3316 | adapter_t *adapter; | |
3317 | nitioctl_t uioc; | |
3318 | int adapno; | |
3319 | int rval; | |
3320 | mega_passthru __user *upthru; /* user address for passthru */ | |
3321 | mega_passthru *pthru; /* copy user passthru here */ | |
3322 | dma_addr_t pthru_dma_hndl; | |
3323 | void *data = NULL; /* data to be transferred */ | |
3324 | dma_addr_t data_dma_hndl; /* dma handle for data xfer area */ | |
3325 | megacmd_t mc; | |
3326 | megastat_t __user *ustats; | |
3327 | int num_ldrv; | |
3328 | u32 uxferaddr = 0; | |
3329 | struct pci_dev *pdev; | |
3330 | ||
3331 | ustats = NULL; /* avoid compilation warnings */ | |
3332 | num_ldrv = 0; | |
3333 | ||
3334 | /* | |
3335 | * Make sure only USCSICMD are issued through this interface. | |
3336 | * MIMD application would still fire different command. | |
3337 | */ | |
3338 | if( (_IOC_TYPE(cmd) != MEGAIOC_MAGIC) && (cmd != USCSICMD) ) { | |
3339 | return -EINVAL; | |
3340 | } | |
3341 | ||
3342 | /* | |
3343 | * Check and convert a possible MIMD command to NIT command. | |
3344 | * mega_m_to_n() copies the data from the user space, so we do not | |
3345 | * have to do it here. | |
3346 | * NOTE: We will need some user address to copyout the data, therefore | |
3347 | * the inteface layer will also provide us with the required user | |
3348 | * addresses. | |
3349 | */ | |
3350 | memset(&uioc, 0, sizeof(nitioctl_t)); | |
3351 | if( (rval = mega_m_to_n( (void __user *)arg, &uioc)) != 0 ) | |
3352 | return rval; | |
3353 | ||
3354 | ||
3355 | switch( uioc.opcode ) { | |
3356 | ||
3357 | case GET_DRIVER_VER: | |
3358 | if( put_user(driver_ver, (u32 __user *)uioc.uioc_uaddr) ) | |
3359 | return (-EFAULT); | |
3360 | ||
3361 | break; | |
3362 | ||
3363 | case GET_N_ADAP: | |
3364 | if( put_user(hba_count, (u32 __user *)uioc.uioc_uaddr) ) | |
3365 | return (-EFAULT); | |
3366 | ||
3367 | /* | |
3368 | * Shucks. MIMD interface returns a positive value for number | |
3369 | * of adapters. TODO: Change it to return 0 when there is no | |
3370 | * applicatio using mimd interface. | |
3371 | */ | |
3372 | return hba_count; | |
3373 | ||
3374 | case GET_ADAP_INFO: | |
3375 | ||
3376 | /* | |
3377 | * Which adapter | |
3378 | */ | |
3379 | if( (adapno = GETADAP(uioc.adapno)) >= hba_count ) | |
3380 | return (-ENODEV); | |
3381 | ||
3382 | if( copy_to_user(uioc.uioc_uaddr, mcontroller+adapno, | |
3383 | sizeof(struct mcontroller)) ) | |
3384 | return (-EFAULT); | |
3385 | break; | |
3386 | ||
3387 | #if MEGA_HAVE_STATS | |
3388 | ||
3389 | case GET_STATS: | |
3390 | /* | |
3391 | * Which adapter | |
3392 | */ | |
3393 | if( (adapno = GETADAP(uioc.adapno)) >= hba_count ) | |
3394 | return (-ENODEV); | |
3395 | ||
3396 | adapter = hba_soft_state[adapno]; | |
3397 | ||
3398 | ustats = uioc.uioc_uaddr; | |
3399 | ||
3400 | if( copy_from_user(&num_ldrv, &ustats->num_ldrv, sizeof(int)) ) | |
3401 | return (-EFAULT); | |
3402 | ||
3403 | /* | |
3404 | * Check for the validity of the logical drive number | |
3405 | */ | |
3406 | if( num_ldrv >= MAX_LOGICAL_DRIVES_40LD ) return -EINVAL; | |
3407 | ||
3408 | if( copy_to_user(ustats->nreads, adapter->nreads, | |
3409 | num_ldrv*sizeof(u32)) ) | |
3410 | return -EFAULT; | |
3411 | ||
3412 | if( copy_to_user(ustats->nreadblocks, adapter->nreadblocks, | |
3413 | num_ldrv*sizeof(u32)) ) | |
3414 | return -EFAULT; | |
3415 | ||
3416 | if( copy_to_user(ustats->nwrites, adapter->nwrites, | |
3417 | num_ldrv*sizeof(u32)) ) | |
3418 | return -EFAULT; | |
3419 | ||
3420 | if( copy_to_user(ustats->nwriteblocks, adapter->nwriteblocks, | |
3421 | num_ldrv*sizeof(u32)) ) | |
3422 | return -EFAULT; | |
3423 | ||
3424 | if( copy_to_user(ustats->rd_errors, adapter->rd_errors, | |
3425 | num_ldrv*sizeof(u32)) ) | |
3426 | return -EFAULT; | |
3427 | ||
3428 | if( copy_to_user(ustats->wr_errors, adapter->wr_errors, | |
3429 | num_ldrv*sizeof(u32)) ) | |
3430 | return -EFAULT; | |
3431 | ||
3432 | return 0; | |
3433 | ||
3434 | #endif | |
3435 | case MBOX_CMD: | |
3436 | ||
3437 | /* | |
3438 | * Which adapter | |
3439 | */ | |
3440 | if( (adapno = GETADAP(uioc.adapno)) >= hba_count ) | |
3441 | return (-ENODEV); | |
3442 | ||
3443 | adapter = hba_soft_state[adapno]; | |
3444 | ||
3445 | /* | |
3446 | * Deletion of logical drive is a special case. The adapter | |
3447 | * should be quiescent before this command is issued. | |
3448 | */ | |
3449 | if( uioc.uioc_rmbox[0] == FC_DEL_LOGDRV && | |
3450 | uioc.uioc_rmbox[2] == OP_DEL_LOGDRV ) { | |
3451 | ||
3452 | /* | |
3453 | * Do we support this feature | |
3454 | */ | |
3455 | if( !adapter->support_random_del ) { | |
3456 | printk(KERN_WARNING "megaraid: logdrv "); | |
3457 | printk("delete on non-supporting F/W.\n"); | |
3458 | ||
3459 | return (-EINVAL); | |
3460 | } | |
3461 | ||
3462 | rval = mega_del_logdrv( adapter, uioc.uioc_rmbox[3] ); | |
3463 | ||
3464 | if( rval == 0 ) { | |
3465 | memset(&mc, 0, sizeof(megacmd_t)); | |
3466 | ||
3467 | mc.status = rval; | |
3468 | ||
3469 | rval = mega_n_to_m((void __user *)arg, &mc); | |
3470 | } | |
3471 | ||
3472 | return rval; | |
3473 | } | |
3474 | /* | |
3475 | * This interface only support the regular passthru commands. | |
3476 | * Reject extended passthru and 64-bit passthru | |
3477 | */ | |
3478 | if( uioc.uioc_rmbox[0] == MEGA_MBOXCMD_PASSTHRU64 || | |
3479 | uioc.uioc_rmbox[0] == MEGA_MBOXCMD_EXTPTHRU ) { | |
3480 | ||
3481 | printk(KERN_WARNING "megaraid: rejected passthru.\n"); | |
3482 | ||
3483 | return (-EINVAL); | |
3484 | } | |
3485 | ||
3486 | /* | |
3487 | * For all internal commands, the buffer must be allocated in | |
3488 | * <4GB address range | |
3489 | */ | |
3490 | if( make_local_pdev(adapter, &pdev) != 0 ) | |
3491 | return -EIO; | |
3492 | ||
3493 | /* Is it a passthru command or a DCMD */ | |
3494 | if( uioc.uioc_rmbox[0] == MEGA_MBOXCMD_PASSTHRU ) { | |
3495 | /* Passthru commands */ | |
3496 | ||
3497 | pthru = pci_alloc_consistent(pdev, | |
3498 | sizeof(mega_passthru), | |
3499 | &pthru_dma_hndl); | |
3500 | ||
3501 | if( pthru == NULL ) { | |
3502 | free_local_pdev(pdev); | |
3503 | return (-ENOMEM); | |
3504 | } | |
3505 | ||
3506 | /* | |
3507 | * The user passthru structure | |
3508 | */ | |
de5952e9 | 3509 | upthru = (mega_passthru __user *)(unsigned long)MBOX(uioc)->xferaddr; |
1da177e4 LT |
3510 | |
3511 | /* | |
3512 | * Copy in the user passthru here. | |
3513 | */ | |
3514 | if( copy_from_user(pthru, upthru, | |
3515 | sizeof(mega_passthru)) ) { | |
3516 | ||
3517 | pci_free_consistent(pdev, | |
3518 | sizeof(mega_passthru), pthru, | |
3519 | pthru_dma_hndl); | |
3520 | ||
3521 | free_local_pdev(pdev); | |
3522 | ||
3523 | return (-EFAULT); | |
3524 | } | |
3525 | ||
3526 | /* | |
3527 | * Is there a data transfer | |
3528 | */ | |
3529 | if( pthru->dataxferlen ) { | |
3530 | data = pci_alloc_consistent(pdev, | |
3531 | pthru->dataxferlen, | |
3532 | &data_dma_hndl); | |
3533 | ||
3534 | if( data == NULL ) { | |
3535 | pci_free_consistent(pdev, | |
3536 | sizeof(mega_passthru), | |
3537 | pthru, | |
3538 | pthru_dma_hndl); | |
3539 | ||
3540 | free_local_pdev(pdev); | |
3541 | ||
3542 | return (-ENOMEM); | |
3543 | } | |
3544 | ||
3545 | /* | |
3546 | * Save the user address and point the kernel | |
3547 | * address at just allocated memory | |
3548 | */ | |
3549 | uxferaddr = pthru->dataxferaddr; | |
3550 | pthru->dataxferaddr = data_dma_hndl; | |
3551 | } | |
3552 | ||
3553 | ||
3554 | /* | |
3555 | * Is data coming down-stream | |
3556 | */ | |
3557 | if( pthru->dataxferlen && (uioc.flags & UIOC_WR) ) { | |
3558 | /* | |
3559 | * Get the user data | |
3560 | */ | |
de5952e9 | 3561 | if( copy_from_user(data, (char __user *)(unsigned long) uxferaddr, |
1da177e4 LT |
3562 | pthru->dataxferlen) ) { |
3563 | rval = (-EFAULT); | |
3564 | goto freemem_and_return; | |
3565 | } | |
3566 | } | |
3567 | ||
3568 | memset(&mc, 0, sizeof(megacmd_t)); | |
3569 | ||
3570 | mc.cmd = MEGA_MBOXCMD_PASSTHRU; | |
3571 | mc.xferaddr = (u32)pthru_dma_hndl; | |
3572 | ||
3573 | /* | |
3574 | * Issue the command | |
3575 | */ | |
cb0258a2 | 3576 | mega_internal_command(adapter, &mc, pthru); |
1da177e4 LT |
3577 | |
3578 | rval = mega_n_to_m((void __user *)arg, &mc); | |
3579 | ||
3580 | if( rval ) goto freemem_and_return; | |
3581 | ||
3582 | ||
3583 | /* | |
3584 | * Is data going up-stream | |
3585 | */ | |
3586 | if( pthru->dataxferlen && (uioc.flags & UIOC_RD) ) { | |
de5952e9 | 3587 | if( copy_to_user((char __user *)(unsigned long) uxferaddr, data, |
1da177e4 LT |
3588 | pthru->dataxferlen) ) { |
3589 | rval = (-EFAULT); | |
3590 | } | |
3591 | } | |
3592 | ||
3593 | /* | |
3594 | * Send the request sense data also, irrespective of | |
3595 | * whether the user has asked for it or not. | |
3596 | */ | |
2d2f8d59 JJ |
3597 | if (copy_to_user(upthru->reqsensearea, |
3598 | pthru->reqsensearea, 14)) | |
3599 | rval = -EFAULT; | |
1da177e4 LT |
3600 | |
3601 | freemem_and_return: | |
3602 | if( pthru->dataxferlen ) { | |
3603 | pci_free_consistent(pdev, | |
3604 | pthru->dataxferlen, data, | |
3605 | data_dma_hndl); | |
3606 | } | |
3607 | ||
3608 | pci_free_consistent(pdev, sizeof(mega_passthru), | |
3609 | pthru, pthru_dma_hndl); | |
3610 | ||
3611 | free_local_pdev(pdev); | |
3612 | ||
3613 | return rval; | |
3614 | } | |
3615 | else { | |
3616 | /* DCMD commands */ | |
3617 | ||
3618 | /* | |
3619 | * Is there a data transfer | |
3620 | */ | |
3621 | if( uioc.xferlen ) { | |
3622 | data = pci_alloc_consistent(pdev, | |
3623 | uioc.xferlen, &data_dma_hndl); | |
3624 | ||
3625 | if( data == NULL ) { | |
3626 | free_local_pdev(pdev); | |
3627 | return (-ENOMEM); | |
3628 | } | |
3629 | ||
3630 | uxferaddr = MBOX(uioc)->xferaddr; | |
3631 | } | |
3632 | ||
3633 | /* | |
3634 | * Is data coming down-stream | |
3635 | */ | |
3636 | if( uioc.xferlen && (uioc.flags & UIOC_WR) ) { | |
3637 | /* | |
3638 | * Get the user data | |
3639 | */ | |
de5952e9 | 3640 | if( copy_from_user(data, (char __user *)(unsigned long) uxferaddr, |
1da177e4 LT |
3641 | uioc.xferlen) ) { |
3642 | ||
3643 | pci_free_consistent(pdev, | |
3644 | uioc.xferlen, | |
3645 | data, data_dma_hndl); | |
3646 | ||
3647 | free_local_pdev(pdev); | |
3648 | ||
3649 | return (-EFAULT); | |
3650 | } | |
3651 | } | |
3652 | ||
3653 | memcpy(&mc, MBOX(uioc), sizeof(megacmd_t)); | |
3654 | ||
3655 | mc.xferaddr = (u32)data_dma_hndl; | |
3656 | ||
3657 | /* | |
3658 | * Issue the command | |
3659 | */ | |
cb0258a2 | 3660 | mega_internal_command(adapter, &mc, NULL); |
1da177e4 LT |
3661 | |
3662 | rval = mega_n_to_m((void __user *)arg, &mc); | |
3663 | ||
3664 | if( rval ) { | |
3665 | if( uioc.xferlen ) { | |
3666 | pci_free_consistent(pdev, | |
3667 | uioc.xferlen, data, | |
3668 | data_dma_hndl); | |
3669 | } | |
3670 | ||
3671 | free_local_pdev(pdev); | |
3672 | ||
3673 | return rval; | |
3674 | } | |
3675 | ||
3676 | /* | |
3677 | * Is data going up-stream | |
3678 | */ | |
3679 | if( uioc.xferlen && (uioc.flags & UIOC_RD) ) { | |
de5952e9 | 3680 | if( copy_to_user((char __user *)(unsigned long) uxferaddr, data, |
1da177e4 LT |
3681 | uioc.xferlen) ) { |
3682 | ||
3683 | rval = (-EFAULT); | |
3684 | } | |
3685 | } | |
3686 | ||
3687 | if( uioc.xferlen ) { | |
3688 | pci_free_consistent(pdev, | |
3689 | uioc.xferlen, data, | |
3690 | data_dma_hndl); | |
3691 | } | |
3692 | ||
3693 | free_local_pdev(pdev); | |
3694 | ||
3695 | return rval; | |
3696 | } | |
3697 | ||
3698 | default: | |
3699 | return (-EINVAL); | |
3700 | } | |
3701 | ||
3702 | return 0; | |
3703 | } | |
3704 | ||
f4927c45 AB |
3705 | static long |
3706 | megadev_unlocked_ioctl(struct file *filep, unsigned int cmd, unsigned long arg) | |
3707 | { | |
3708 | int ret; | |
3709 | ||
c45d15d2 | 3710 | mutex_lock(&megadev_mutex); |
f4927c45 | 3711 | ret = megadev_ioctl(filep, cmd, arg); |
c45d15d2 | 3712 | mutex_unlock(&megadev_mutex); |
f4927c45 AB |
3713 | |
3714 | return ret; | |
3715 | } | |
3716 | ||
1da177e4 LT |
3717 | /** |
3718 | * mega_m_to_n() | |
3719 | * @arg - user address | |
3720 | * @uioc - new ioctl structure | |
3721 | * | |
3722 | * A thin layer to convert older mimd interface ioctl structure to NIT ioctl | |
3723 | * structure | |
3724 | * | |
3725 | * Converts the older mimd ioctl structure to newer NIT structure | |
3726 | */ | |
3727 | static int | |
3728 | mega_m_to_n(void __user *arg, nitioctl_t *uioc) | |
3729 | { | |
3730 | struct uioctl_t uioc_mimd; | |
3731 | char signature[8] = {0}; | |
3732 | u8 opcode; | |
3733 | u8 subopcode; | |
3734 | ||
3735 | ||
3736 | /* | |
3737 | * check is the application conforms to NIT. We do not have to do much | |
3738 | * in that case. | |
3739 | * We exploit the fact that the signature is stored in the very | |
25985edc | 3740 | * beginning of the structure. |
1da177e4 LT |
3741 | */ |
3742 | ||
3743 | if( copy_from_user(signature, arg, 7) ) | |
3744 | return (-EFAULT); | |
3745 | ||
3746 | if( memcmp(signature, "MEGANIT", 7) == 0 ) { | |
3747 | ||
3748 | /* | |
3749 | * NOTE NOTE: The nit ioctl is still under flux because of | |
3750 | * change of mailbox definition, in HPE. No applications yet | |
3751 | * use this interface and let's not have applications use this | |
3752 | * interface till the new specifitions are in place. | |
3753 | */ | |
3754 | return -EINVAL; | |
3755 | #if 0 | |
3756 | if( copy_from_user(uioc, arg, sizeof(nitioctl_t)) ) | |
3757 | return (-EFAULT); | |
3758 | return 0; | |
3759 | #endif | |
3760 | } | |
3761 | ||
3762 | /* | |
3763 | * Else assume we have mimd uioctl_t as arg. Convert to nitioctl_t | |
3764 | * | |
3765 | * Get the user ioctl structure | |
3766 | */ | |
3767 | if( copy_from_user(&uioc_mimd, arg, sizeof(struct uioctl_t)) ) | |
3768 | return (-EFAULT); | |
3769 | ||
3770 | ||
3771 | /* | |
3772 | * Get the opcode and subopcode for the commands | |
3773 | */ | |
3774 | opcode = uioc_mimd.ui.fcs.opcode; | |
3775 | subopcode = uioc_mimd.ui.fcs.subopcode; | |
3776 | ||
3777 | switch (opcode) { | |
3778 | case 0x82: | |
3779 | ||
3780 | switch (subopcode) { | |
3781 | ||
3782 | case MEGAIOC_QDRVRVER: /* Query driver version */ | |
3783 | uioc->opcode = GET_DRIVER_VER; | |
3784 | uioc->uioc_uaddr = uioc_mimd.data; | |
3785 | break; | |
3786 | ||
3787 | case MEGAIOC_QNADAP: /* Get # of adapters */ | |
3788 | uioc->opcode = GET_N_ADAP; | |
3789 | uioc->uioc_uaddr = uioc_mimd.data; | |
3790 | break; | |
3791 | ||
3792 | case MEGAIOC_QADAPINFO: /* Get adapter information */ | |
3793 | uioc->opcode = GET_ADAP_INFO; | |
3794 | uioc->adapno = uioc_mimd.ui.fcs.adapno; | |
3795 | uioc->uioc_uaddr = uioc_mimd.data; | |
3796 | break; | |
3797 | ||
3798 | default: | |
3799 | return(-EINVAL); | |
3800 | } | |
3801 | ||
3802 | break; | |
3803 | ||
3804 | ||
3805 | case 0x81: | |
3806 | ||
3807 | uioc->opcode = MBOX_CMD; | |
3808 | uioc->adapno = uioc_mimd.ui.fcs.adapno; | |
3809 | ||
3810 | memcpy(uioc->uioc_rmbox, uioc_mimd.mbox, 18); | |
3811 | ||
3812 | uioc->xferlen = uioc_mimd.ui.fcs.length; | |
3813 | ||
3814 | if( uioc_mimd.outlen ) uioc->flags = UIOC_RD; | |
3815 | if( uioc_mimd.inlen ) uioc->flags |= UIOC_WR; | |
3816 | ||
3817 | break; | |
3818 | ||
3819 | case 0x80: | |
3820 | ||
3821 | uioc->opcode = MBOX_CMD; | |
3822 | uioc->adapno = uioc_mimd.ui.fcs.adapno; | |
3823 | ||
3824 | memcpy(uioc->uioc_rmbox, uioc_mimd.mbox, 18); | |
3825 | ||
3826 | /* | |
3827 | * Choose the xferlen bigger of input and output data | |
3828 | */ | |
3829 | uioc->xferlen = uioc_mimd.outlen > uioc_mimd.inlen ? | |
3830 | uioc_mimd.outlen : uioc_mimd.inlen; | |
3831 | ||
3832 | if( uioc_mimd.outlen ) uioc->flags = UIOC_RD; | |
3833 | if( uioc_mimd.inlen ) uioc->flags |= UIOC_WR; | |
3834 | ||
3835 | break; | |
3836 | ||
3837 | default: | |
3838 | return (-EINVAL); | |
3839 | ||
3840 | } | |
3841 | ||
3842 | return 0; | |
3843 | } | |
3844 | ||
3845 | /* | |
3846 | * mega_n_to_m() | |
3847 | * @arg - user address | |
3848 | * @mc - mailbox command | |
3849 | * | |
3850 | * Updates the status information to the application, depending on application | |
3851 | * conforms to older mimd ioctl interface or newer NIT ioctl interface | |
3852 | */ | |
3853 | static int | |
3854 | mega_n_to_m(void __user *arg, megacmd_t *mc) | |
3855 | { | |
3856 | nitioctl_t __user *uiocp; | |
3857 | megacmd_t __user *umc; | |
3858 | mega_passthru __user *upthru; | |
3859 | struct uioctl_t __user *uioc_mimd; | |
3860 | char signature[8] = {0}; | |
3861 | ||
3862 | /* | |
3863 | * check is the application conforms to NIT. | |
3864 | */ | |
3865 | if( copy_from_user(signature, arg, 7) ) | |
3866 | return -EFAULT; | |
3867 | ||
3868 | if( memcmp(signature, "MEGANIT", 7) == 0 ) { | |
3869 | ||
3870 | uiocp = arg; | |
3871 | ||
3872 | if( put_user(mc->status, (u8 __user *)&MBOX_P(uiocp)->status) ) | |
3873 | return (-EFAULT); | |
3874 | ||
3875 | if( mc->cmd == MEGA_MBOXCMD_PASSTHRU ) { | |
3876 | ||
3877 | umc = MBOX_P(uiocp); | |
3878 | ||
3879 | if (get_user(upthru, (mega_passthru __user * __user *)&umc->xferaddr)) | |
3880 | return -EFAULT; | |
3881 | ||
3882 | if( put_user(mc->status, (u8 __user *)&upthru->scsistatus)) | |
3883 | return (-EFAULT); | |
3884 | } | |
3885 | } | |
3886 | else { | |
3887 | uioc_mimd = arg; | |
3888 | ||
3889 | if( put_user(mc->status, (u8 __user *)&uioc_mimd->mbox[17]) ) | |
3890 | return (-EFAULT); | |
3891 | ||
3892 | if( mc->cmd == MEGA_MBOXCMD_PASSTHRU ) { | |
3893 | ||
3894 | umc = (megacmd_t __user *)uioc_mimd->mbox; | |
3895 | ||
3896 | if (get_user(upthru, (mega_passthru __user * __user *)&umc->xferaddr)) | |
3897 | return (-EFAULT); | |
3898 | ||
3899 | if( put_user(mc->status, (u8 __user *)&upthru->scsistatus) ) | |
3900 | return (-EFAULT); | |
3901 | } | |
3902 | } | |
3903 | ||
3904 | return 0; | |
3905 | } | |
3906 | ||
3907 | ||
3908 | /* | |
3909 | * MEGARAID 'FW' commands. | |
3910 | */ | |
3911 | ||
3912 | /** | |
3913 | * mega_is_bios_enabled() | |
3914 | * @adapter - pointer to our soft state | |
3915 | * | |
3916 | * issue command to find out if the BIOS is enabled for this controller | |
3917 | */ | |
3918 | static int | |
3919 | mega_is_bios_enabled(adapter_t *adapter) | |
3920 | { | |
3921 | unsigned char raw_mbox[sizeof(struct mbox_out)]; | |
3922 | mbox_t *mbox; | |
3923 | int ret; | |
3924 | ||
3925 | mbox = (mbox_t *)raw_mbox; | |
3926 | ||
3927 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); | |
3928 | ||
3929 | memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE); | |
3930 | ||
3931 | mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle; | |
3932 | ||
3933 | raw_mbox[0] = IS_BIOS_ENABLED; | |
3934 | raw_mbox[2] = GET_BIOS; | |
3935 | ||
3936 | ||
3937 | ret = issue_scb_block(adapter, raw_mbox); | |
3938 | ||
3939 | return *(char *)adapter->mega_buffer; | |
3940 | } | |
3941 | ||
3942 | ||
3943 | /** | |
3944 | * mega_enum_raid_scsi() | |
3945 | * @adapter - pointer to our soft state | |
3946 | * | |
3947 | * Find out what channels are RAID/SCSI. This information is used to | |
3948 | * differentiate the virtual channels and physical channels and to support | |
3949 | * ROMB feature and non-disk devices. | |
3950 | */ | |
3951 | static void | |
3952 | mega_enum_raid_scsi(adapter_t *adapter) | |
3953 | { | |
3954 | unsigned char raw_mbox[sizeof(struct mbox_out)]; | |
3955 | mbox_t *mbox; | |
3956 | int i; | |
3957 | ||
3958 | mbox = (mbox_t *)raw_mbox; | |
3959 | ||
3960 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); | |
3961 | ||
3962 | /* | |
3963 | * issue command to find out what channels are raid/scsi | |
3964 | */ | |
3965 | raw_mbox[0] = CHNL_CLASS; | |
3966 | raw_mbox[2] = GET_CHNL_CLASS; | |
3967 | ||
3968 | memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE); | |
3969 | ||
3970 | mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle; | |
3971 | ||
3972 | /* | |
3973 | * Non-ROMB firmware fail this command, so all channels | |
3974 | * must be shown RAID | |
3975 | */ | |
3976 | adapter->mega_ch_class = 0xFF; | |
3977 | ||
3978 | if(!issue_scb_block(adapter, raw_mbox)) { | |
3979 | adapter->mega_ch_class = *((char *)adapter->mega_buffer); | |
3980 | ||
3981 | } | |
3982 | ||
3983 | for( i = 0; i < adapter->product_info.nchannels; i++ ) { | |
3984 | if( (adapter->mega_ch_class >> i) & 0x01 ) { | |
3985 | printk(KERN_INFO "megaraid: channel[%d] is raid.\n", | |
3986 | i); | |
3987 | } | |
3988 | else { | |
3989 | printk(KERN_INFO "megaraid: channel[%d] is scsi.\n", | |
3990 | i); | |
3991 | } | |
3992 | } | |
3993 | ||
3994 | return; | |
3995 | } | |
3996 | ||
3997 | ||
3998 | /** | |
3999 | * mega_get_boot_drv() | |
4000 | * @adapter - pointer to our soft state | |
4001 | * | |
4002 | * Find out which device is the boot device. Note, any logical drive or any | |
4003 | * phyical device (e.g., a CDROM) can be designated as a boot device. | |
4004 | */ | |
4005 | static void | |
4006 | mega_get_boot_drv(adapter_t *adapter) | |
4007 | { | |
4008 | struct private_bios_data *prv_bios_data; | |
4009 | unsigned char raw_mbox[sizeof(struct mbox_out)]; | |
4010 | mbox_t *mbox; | |
4011 | u16 cksum = 0; | |
4012 | u8 *cksum_p; | |
4013 | u8 boot_pdrv; | |
4014 | int i; | |
4015 | ||
4016 | mbox = (mbox_t *)raw_mbox; | |
4017 | ||
4018 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); | |
4019 | ||
4020 | raw_mbox[0] = BIOS_PVT_DATA; | |
4021 | raw_mbox[2] = GET_BIOS_PVT_DATA; | |
4022 | ||
4023 | memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE); | |
4024 | ||
4025 | mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle; | |
4026 | ||
4027 | adapter->boot_ldrv_enabled = 0; | |
4028 | adapter->boot_ldrv = 0; | |
4029 | ||
4030 | adapter->boot_pdrv_enabled = 0; | |
4031 | adapter->boot_pdrv_ch = 0; | |
4032 | adapter->boot_pdrv_tgt = 0; | |
4033 | ||
4034 | if(issue_scb_block(adapter, raw_mbox) == 0) { | |
4035 | prv_bios_data = | |
4036 | (struct private_bios_data *)adapter->mega_buffer; | |
4037 | ||
4038 | cksum = 0; | |
4039 | cksum_p = (char *)prv_bios_data; | |
4040 | for (i = 0; i < 14; i++ ) { | |
4041 | cksum += (u16)(*cksum_p++); | |
4042 | } | |
4043 | ||
4044 | if (prv_bios_data->cksum == (u16)(0-cksum) ) { | |
4045 | ||
4046 | /* | |
4047 | * If MSB is set, a physical drive is set as boot | |
4048 | * device | |
4049 | */ | |
4050 | if( prv_bios_data->boot_drv & 0x80 ) { | |
4051 | adapter->boot_pdrv_enabled = 1; | |
4052 | boot_pdrv = prv_bios_data->boot_drv & 0x7F; | |
4053 | adapter->boot_pdrv_ch = boot_pdrv / 16; | |
4054 | adapter->boot_pdrv_tgt = boot_pdrv % 16; | |
4055 | } | |
4056 | else { | |
4057 | adapter->boot_ldrv_enabled = 1; | |
4058 | adapter->boot_ldrv = prv_bios_data->boot_drv; | |
4059 | } | |
4060 | } | |
4061 | } | |
4062 | ||
4063 | } | |
4064 | ||
4065 | /** | |
4066 | * mega_support_random_del() | |
4067 | * @adapter - pointer to our soft state | |
4068 | * | |
4069 | * Find out if this controller supports random deletion and addition of | |
4070 | * logical drives | |
4071 | */ | |
4072 | static int | |
4073 | mega_support_random_del(adapter_t *adapter) | |
4074 | { | |
4075 | unsigned char raw_mbox[sizeof(struct mbox_out)]; | |
4076 | mbox_t *mbox; | |
4077 | int rval; | |
4078 | ||
4079 | mbox = (mbox_t *)raw_mbox; | |
4080 | ||
4081 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); | |
4082 | ||
4083 | /* | |
4084 | * issue command | |
4085 | */ | |
4086 | raw_mbox[0] = FC_DEL_LOGDRV; | |
4087 | raw_mbox[2] = OP_SUP_DEL_LOGDRV; | |
4088 | ||
4089 | rval = issue_scb_block(adapter, raw_mbox); | |
4090 | ||
4091 | return !rval; | |
4092 | } | |
4093 | ||
4094 | ||
4095 | /** | |
4096 | * mega_support_ext_cdb() | |
4097 | * @adapter - pointer to our soft state | |
4098 | * | |
4099 | * Find out if this firmware support cdblen > 10 | |
4100 | */ | |
4101 | static int | |
4102 | mega_support_ext_cdb(adapter_t *adapter) | |
4103 | { | |
4104 | unsigned char raw_mbox[sizeof(struct mbox_out)]; | |
4105 | mbox_t *mbox; | |
4106 | int rval; | |
4107 | ||
4108 | mbox = (mbox_t *)raw_mbox; | |
4109 | ||
4110 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); | |
4111 | /* | |
4112 | * issue command to find out if controller supports extended CDBs. | |
4113 | */ | |
4114 | raw_mbox[0] = 0xA4; | |
4115 | raw_mbox[2] = 0x16; | |
4116 | ||
4117 | rval = issue_scb_block(adapter, raw_mbox); | |
4118 | ||
4119 | return !rval; | |
4120 | } | |
4121 | ||
4122 | ||
4123 | /** | |
4124 | * mega_del_logdrv() | |
4125 | * @adapter - pointer to our soft state | |
4126 | * @logdrv - logical drive to be deleted | |
4127 | * | |
4128 | * Delete the specified logical drive. It is the responsibility of the user | |
4129 | * app to let the OS know about this operation. | |
4130 | */ | |
4131 | static int | |
4132 | mega_del_logdrv(adapter_t *adapter, int logdrv) | |
4133 | { | |
4134 | unsigned long flags; | |
4135 | scb_t *scb; | |
4136 | int rval; | |
4137 | ||
4138 | /* | |
4139 | * Stop sending commands to the controller, queue them internally. | |
4140 | * When deletion is complete, ISR will flush the queue. | |
4141 | */ | |
4142 | atomic_set(&adapter->quiescent, 1); | |
4143 | ||
4144 | /* | |
4145 | * Wait till all the issued commands are complete and there are no | |
4146 | * commands in the pending queue | |
4147 | */ | |
4148 | while (atomic_read(&adapter->pend_cmds) > 0 || | |
4149 | !list_empty(&adapter->pending_list)) | |
4150 | msleep(1000); /* sleep for 1s */ | |
4151 | ||
4152 | rval = mega_do_del_logdrv(adapter, logdrv); | |
4153 | ||
4154 | spin_lock_irqsave(&adapter->lock, flags); | |
4155 | ||
4156 | /* | |
4157 | * If delete operation was successful, add 0x80 to the logical drive | |
4158 | * ids for commands in the pending queue. | |
4159 | */ | |
4160 | if (adapter->read_ldidmap) { | |
4161 | struct list_head *pos; | |
4162 | list_for_each(pos, &adapter->pending_list) { | |
4163 | scb = list_entry(pos, scb_t, list); | |
4164 | if (scb->pthru->logdrv < 0x80 ) | |
4165 | scb->pthru->logdrv += 0x80; | |
4166 | } | |
4167 | } | |
4168 | ||
4169 | atomic_set(&adapter->quiescent, 0); | |
4170 | ||
4171 | mega_runpendq(adapter); | |
4172 | ||
4173 | spin_unlock_irqrestore(&adapter->lock, flags); | |
4174 | ||
4175 | return rval; | |
4176 | } | |
4177 | ||
4178 | ||
4179 | static int | |
4180 | mega_do_del_logdrv(adapter_t *adapter, int logdrv) | |
4181 | { | |
4182 | megacmd_t mc; | |
4183 | int rval; | |
4184 | ||
4185 | memset( &mc, 0, sizeof(megacmd_t)); | |
4186 | ||
4187 | mc.cmd = FC_DEL_LOGDRV; | |
4188 | mc.opcode = OP_DEL_LOGDRV; | |
4189 | mc.subopcode = logdrv; | |
4190 | ||
cb0258a2 | 4191 | rval = mega_internal_command(adapter, &mc, NULL); |
1da177e4 LT |
4192 | |
4193 | /* log this event */ | |
4194 | if(rval) { | |
4195 | printk(KERN_WARNING "megaraid: Delete LD-%d failed.", logdrv); | |
4196 | return rval; | |
4197 | } | |
4198 | ||
4199 | /* | |
4200 | * After deleting first logical drive, the logical drives must be | |
4201 | * addressed by adding 0x80 to the logical drive id. | |
4202 | */ | |
4203 | adapter->read_ldidmap = 1; | |
4204 | ||
4205 | return rval; | |
4206 | } | |
4207 | ||
4208 | ||
4209 | /** | |
4210 | * mega_get_max_sgl() | |
4211 | * @adapter - pointer to our soft state | |
4212 | * | |
4213 | * Find out the maximum number of scatter-gather elements supported by this | |
4214 | * version of the firmware | |
4215 | */ | |
4216 | static void | |
4217 | mega_get_max_sgl(adapter_t *adapter) | |
4218 | { | |
4219 | unsigned char raw_mbox[sizeof(struct mbox_out)]; | |
4220 | mbox_t *mbox; | |
4221 | ||
4222 | mbox = (mbox_t *)raw_mbox; | |
4223 | ||
4224 | memset(mbox, 0, sizeof(raw_mbox)); | |
4225 | ||
4226 | memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE); | |
4227 | ||
4228 | mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle; | |
4229 | ||
4230 | raw_mbox[0] = MAIN_MISC_OPCODE; | |
4231 | raw_mbox[2] = GET_MAX_SG_SUPPORT; | |
4232 | ||
4233 | ||
4234 | if( issue_scb_block(adapter, raw_mbox) ) { | |
4235 | /* | |
4236 | * f/w does not support this command. Choose the default value | |
4237 | */ | |
4238 | adapter->sglen = MIN_SGLIST; | |
4239 | } | |
4240 | else { | |
4241 | adapter->sglen = *((char *)adapter->mega_buffer); | |
4242 | ||
4243 | /* | |
4244 | * Make sure this is not more than the resources we are | |
4245 | * planning to allocate | |
4246 | */ | |
4247 | if ( adapter->sglen > MAX_SGLIST ) | |
4248 | adapter->sglen = MAX_SGLIST; | |
4249 | } | |
4250 | ||
4251 | return; | |
4252 | } | |
4253 | ||
4254 | ||
4255 | /** | |
4256 | * mega_support_cluster() | |
4257 | * @adapter - pointer to our soft state | |
4258 | * | |
4259 | * Find out if this firmware support cluster calls. | |
4260 | */ | |
4261 | static int | |
4262 | mega_support_cluster(adapter_t *adapter) | |
4263 | { | |
4264 | unsigned char raw_mbox[sizeof(struct mbox_out)]; | |
4265 | mbox_t *mbox; | |
4266 | ||
4267 | mbox = (mbox_t *)raw_mbox; | |
4268 | ||
4269 | memset(mbox, 0, sizeof(raw_mbox)); | |
4270 | ||
4271 | memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE); | |
4272 | ||
4273 | mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle; | |
4274 | ||
4275 | /* | |
4276 | * Try to get the initiator id. This command will succeed iff the | |
4277 | * clustering is available on this HBA. | |
4278 | */ | |
4279 | raw_mbox[0] = MEGA_GET_TARGET_ID; | |
4280 | ||
4281 | if( issue_scb_block(adapter, raw_mbox) == 0 ) { | |
4282 | ||
4283 | /* | |
4284 | * Cluster support available. Get the initiator target id. | |
4285 | * Tell our id to mid-layer too. | |
4286 | */ | |
4287 | adapter->this_id = *(u32 *)adapter->mega_buffer; | |
4288 | adapter->host->this_id = adapter->this_id; | |
4289 | ||
4290 | return 1; | |
4291 | } | |
4292 | ||
4293 | return 0; | |
4294 | } | |
4295 | ||
84a3c97b | 4296 | #ifdef CONFIG_PROC_FS |
1da177e4 LT |
4297 | /** |
4298 | * mega_adapinq() | |
4299 | * @adapter - pointer to our soft state | |
4300 | * @dma_handle - DMA address of the buffer | |
4301 | * | |
8e572bab | 4302 | * Issue internal commands while interrupts are available. |
1da177e4 LT |
4303 | * We only issue direct mailbox commands from within the driver. ioctl() |
4304 | * interface using these routines can issue passthru commands. | |
4305 | */ | |
4306 | static int | |
4307 | mega_adapinq(adapter_t *adapter, dma_addr_t dma_handle) | |
4308 | { | |
4309 | megacmd_t mc; | |
4310 | ||
4311 | memset(&mc, 0, sizeof(megacmd_t)); | |
4312 | ||
4313 | if( adapter->flag & BOARD_40LD ) { | |
4314 | mc.cmd = FC_NEW_CONFIG; | |
4315 | mc.opcode = NC_SUBOP_ENQUIRY3; | |
4316 | mc.subopcode = ENQ3_GET_SOLICITED_FULL; | |
4317 | } | |
4318 | else { | |
4319 | mc.cmd = MEGA_MBOXCMD_ADPEXTINQ; | |
4320 | } | |
4321 | ||
4322 | mc.xferaddr = (u32)dma_handle; | |
4323 | ||
cb0258a2 | 4324 | if ( mega_internal_command(adapter, &mc, NULL) != 0 ) { |
1da177e4 LT |
4325 | return -1; |
4326 | } | |
4327 | ||
4328 | return 0; | |
4329 | } | |
4330 | ||
4331 | ||
4332 | /** mega_internal_dev_inquiry() | |
4333 | * @adapter - pointer to our soft state | |
4334 | * @ch - channel for this device | |
4335 | * @tgt - ID of this device | |
4336 | * @buf_dma_handle - DMA address of the buffer | |
4337 | * | |
4338 | * Issue the scsi inquiry for the specified device. | |
4339 | */ | |
4340 | static int | |
4341 | mega_internal_dev_inquiry(adapter_t *adapter, u8 ch, u8 tgt, | |
4342 | dma_addr_t buf_dma_handle) | |
4343 | { | |
4344 | mega_passthru *pthru; | |
4345 | dma_addr_t pthru_dma_handle; | |
4346 | megacmd_t mc; | |
4347 | int rval; | |
4348 | struct pci_dev *pdev; | |
4349 | ||
4350 | ||
4351 | /* | |
4352 | * For all internal commands, the buffer must be allocated in <4GB | |
4353 | * address range | |
4354 | */ | |
4355 | if( make_local_pdev(adapter, &pdev) != 0 ) return -1; | |
4356 | ||
4357 | pthru = pci_alloc_consistent(pdev, sizeof(mega_passthru), | |
4358 | &pthru_dma_handle); | |
4359 | ||
4360 | if( pthru == NULL ) { | |
4361 | free_local_pdev(pdev); | |
4362 | return -1; | |
4363 | } | |
4364 | ||
4365 | pthru->timeout = 2; | |
4366 | pthru->ars = 1; | |
4367 | pthru->reqsenselen = 14; | |
4368 | pthru->islogical = 0; | |
4369 | ||
4370 | pthru->channel = (adapter->flag & BOARD_40LD) ? 0 : ch; | |
4371 | ||
4372 | pthru->target = (adapter->flag & BOARD_40LD) ? (ch << 4)|tgt : tgt; | |
4373 | ||
4374 | pthru->cdblen = 6; | |
4375 | ||
4376 | pthru->cdb[0] = INQUIRY; | |
4377 | pthru->cdb[1] = 0; | |
4378 | pthru->cdb[2] = 0; | |
4379 | pthru->cdb[3] = 0; | |
4380 | pthru->cdb[4] = 255; | |
4381 | pthru->cdb[5] = 0; | |
4382 | ||
4383 | ||
4384 | pthru->dataxferaddr = (u32)buf_dma_handle; | |
4385 | pthru->dataxferlen = 256; | |
4386 | ||
4387 | memset(&mc, 0, sizeof(megacmd_t)); | |
4388 | ||
4389 | mc.cmd = MEGA_MBOXCMD_PASSTHRU; | |
4390 | mc.xferaddr = (u32)pthru_dma_handle; | |
4391 | ||
cb0258a2 | 4392 | rval = mega_internal_command(adapter, &mc, pthru); |
1da177e4 LT |
4393 | |
4394 | pci_free_consistent(pdev, sizeof(mega_passthru), pthru, | |
4395 | pthru_dma_handle); | |
4396 | ||
4397 | free_local_pdev(pdev); | |
4398 | ||
4399 | return rval; | |
4400 | } | |
84a3c97b | 4401 | #endif |
1da177e4 LT |
4402 | |
4403 | /** | |
4404 | * mega_internal_command() | |
4405 | * @adapter - pointer to our soft state | |
1da177e4 LT |
4406 | * @mc - the mailbox command |
4407 | * @pthru - Passthru structure for DCDB commands | |
4408 | * | |
4409 | * Issue the internal commands in interrupt mode. | |
4410 | * The last argument is the address of the passthru structure if the command | |
4411 | * to be fired is a passthru command | |
4412 | * | |
4413 | * lockscope specifies whether the caller has already acquired the lock. Of | |
4414 | * course, the caller must know which lock we are talking about. | |
4415 | * | |
4416 | * Note: parameter 'pthru' is null for non-passthru commands. | |
4417 | */ | |
4418 | static int | |
cb0258a2 | 4419 | mega_internal_command(adapter_t *adapter, megacmd_t *mc, mega_passthru *pthru) |
1da177e4 LT |
4420 | { |
4421 | Scsi_Cmnd *scmd; | |
4422 | struct scsi_device *sdev; | |
1da177e4 LT |
4423 | scb_t *scb; |
4424 | int rval; | |
4425 | ||
6b0eea21 FT |
4426 | scmd = scsi_allocate_command(GFP_KERNEL); |
4427 | if (!scmd) | |
4428 | return -ENOMEM; | |
4429 | ||
1da177e4 LT |
4430 | /* |
4431 | * The internal commands share one command id and hence are | |
4432 | * serialized. This is so because we want to reserve maximum number of | |
4433 | * available command ids for the I/O commands. | |
4434 | */ | |
0b950672 | 4435 | mutex_lock(&adapter->int_mtx); |
1da177e4 LT |
4436 | |
4437 | scb = &adapter->int_scb; | |
4438 | memset(scb, 0, sizeof(scb_t)); | |
4439 | ||
bbfbbbc1 | 4440 | sdev = kzalloc(sizeof(struct scsi_device), GFP_KERNEL); |
1da177e4 LT |
4441 | scmd->device = sdev; |
4442 | ||
6b0eea21 FT |
4443 | memset(adapter->int_cdb, 0, sizeof(adapter->int_cdb)); |
4444 | scmd->cmnd = adapter->int_cdb; | |
1da177e4 | 4445 | scmd->device->host = adapter->host; |
3f6270ef | 4446 | scmd->host_scribble = (void *)scb; |
1da177e4 LT |
4447 | scmd->cmnd[0] = MEGA_INTERNAL_CMD; |
4448 | ||
4449 | scb->state |= SCB_ACTIVE; | |
4450 | scb->cmd = scmd; | |
4451 | ||
4452 | memcpy(scb->raw_mbox, mc, sizeof(megacmd_t)); | |
4453 | ||
4454 | /* | |
4455 | * Is it a passthru command | |
4456 | */ | |
4457 | if( mc->cmd == MEGA_MBOXCMD_PASSTHRU ) { | |
4458 | ||
4459 | scb->pthru = pthru; | |
4460 | } | |
4461 | ||
4462 | scb->idx = CMDID_INT_CMDS; | |
4463 | ||
f281233d | 4464 | megaraid_queue_lck(scmd, mega_internal_done); |
1da177e4 | 4465 | |
8d115f84 | 4466 | wait_for_completion(&adapter->int_waitq); |
1da177e4 LT |
4467 | |
4468 | rval = scmd->result; | |
4469 | mc->status = scmd->result; | |
4470 | kfree(sdev); | |
4471 | ||
4472 | /* | |
4473 | * Print a debug message for all failed commands. Applications can use | |
4474 | * this information. | |
4475 | */ | |
4476 | if( scmd->result && trace_level ) { | |
4477 | printk("megaraid: cmd [%x, %x, %x] status:[%x]\n", | |
4478 | mc->cmd, mc->opcode, mc->subopcode, scmd->result); | |
4479 | } | |
4480 | ||
0b950672 | 4481 | mutex_unlock(&adapter->int_mtx); |
1da177e4 | 4482 | |
6b0eea21 FT |
4483 | scsi_free_command(GFP_KERNEL, scmd); |
4484 | ||
1da177e4 LT |
4485 | return rval; |
4486 | } | |
4487 | ||
4488 | ||
4489 | /** | |
4490 | * mega_internal_done() | |
4491 | * @scmd - internal scsi command | |
4492 | * | |
4493 | * Callback routine for internal commands. | |
4494 | */ | |
4495 | static void | |
4496 | mega_internal_done(Scsi_Cmnd *scmd) | |
4497 | { | |
4498 | adapter_t *adapter; | |
4499 | ||
4500 | adapter = (adapter_t *)scmd->device->host->hostdata; | |
4501 | ||
8d115f84 | 4502 | complete(&adapter->int_waitq); |
1da177e4 LT |
4503 | |
4504 | } | |
4505 | ||
4506 | ||
4507 | static struct scsi_host_template megaraid_template = { | |
4508 | .module = THIS_MODULE, | |
4509 | .name = "MegaRAID", | |
3492b328 | 4510 | .proc_name = "megaraid_legacy", |
1da177e4 LT |
4511 | .info = megaraid_info, |
4512 | .queuecommand = megaraid_queue, | |
4513 | .bios_param = megaraid_biosparam, | |
4514 | .max_sectors = MAX_SECTORS_PER_IO, | |
4515 | .can_queue = MAX_COMMANDS, | |
4516 | .this_id = DEFAULT_INITIATOR_ID, | |
4517 | .sg_tablesize = MAX_SGLIST, | |
4518 | .cmd_per_lun = DEF_CMD_PER_LUN, | |
4519 | .use_clustering = ENABLE_CLUSTERING, | |
4520 | .eh_abort_handler = megaraid_abort, | |
4521 | .eh_device_reset_handler = megaraid_reset, | |
4522 | .eh_bus_reset_handler = megaraid_reset, | |
4523 | .eh_host_reset_handler = megaraid_reset, | |
4524 | }; | |
4525 | ||
4526 | static int __devinit | |
4527 | megaraid_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) | |
4528 | { | |
4529 | struct Scsi_Host *host; | |
4530 | adapter_t *adapter; | |
4531 | unsigned long mega_baseport, tbase, flag = 0; | |
4532 | u16 subsysid, subsysvid; | |
4533 | u8 pci_bus, pci_dev_func; | |
4534 | int irq, i, j; | |
4535 | int error = -ENODEV; | |
4536 | ||
4537 | if (pci_enable_device(pdev)) | |
4538 | goto out; | |
4539 | pci_set_master(pdev); | |
4540 | ||
4541 | pci_bus = pdev->bus->number; | |
4542 | pci_dev_func = pdev->devfn; | |
4543 | ||
4544 | /* | |
4545 | * The megaraid3 stuff reports the ID of the Intel part which is not | |
4546 | * remotely specific to the megaraid | |
4547 | */ | |
4548 | if (pdev->vendor == PCI_VENDOR_ID_INTEL) { | |
4549 | u16 magic; | |
4550 | /* | |
4551 | * Don't fall over the Compaq management cards using the same | |
4552 | * PCI identifier | |
4553 | */ | |
4554 | if (pdev->subsystem_vendor == PCI_VENDOR_ID_COMPAQ && | |
4555 | pdev->subsystem_device == 0xC000) | |
4556 | return -ENODEV; | |
4557 | /* Now check the magic signature byte */ | |
4558 | pci_read_config_word(pdev, PCI_CONF_AMISIG, &magic); | |
4559 | if (magic != HBA_SIGNATURE_471 && magic != HBA_SIGNATURE) | |
4560 | return -ENODEV; | |
4561 | /* Ok it is probably a megaraid */ | |
4562 | } | |
4563 | ||
4564 | /* | |
4565 | * For these vendor and device ids, signature offsets are not | |
4566 | * valid and 64 bit is implicit | |
4567 | */ | |
4568 | if (id->driver_data & BOARD_64BIT) | |
4569 | flag |= BOARD_64BIT; | |
4570 | else { | |
4571 | u32 magic64; | |
4572 | ||
4573 | pci_read_config_dword(pdev, PCI_CONF_AMISIG64, &magic64); | |
4574 | if (magic64 == HBA_SIGNATURE_64BIT) | |
4575 | flag |= BOARD_64BIT; | |
4576 | } | |
4577 | ||
4578 | subsysvid = pdev->subsystem_vendor; | |
4579 | subsysid = pdev->subsystem_device; | |
4580 | ||
4581 | printk(KERN_NOTICE "megaraid: found 0x%4.04x:0x%4.04x:bus %d:", | |
4582 | id->vendor, id->device, pci_bus); | |
4583 | ||
4584 | printk("slot %d:func %d\n", | |
4585 | PCI_SLOT(pci_dev_func), PCI_FUNC(pci_dev_func)); | |
4586 | ||
4587 | /* Read the base port and IRQ from PCI */ | |
4588 | mega_baseport = pci_resource_start(pdev, 0); | |
4589 | irq = pdev->irq; | |
4590 | ||
4591 | tbase = mega_baseport; | |
4592 | if (pci_resource_flags(pdev, 0) & IORESOURCE_MEM) { | |
4593 | flag |= BOARD_MEMMAP; | |
4594 | ||
4595 | if (!request_mem_region(mega_baseport, 128, "megaraid")) { | |
4596 | printk(KERN_WARNING "megaraid: mem region busy!\n"); | |
4597 | goto out_disable_device; | |
4598 | } | |
4599 | ||
4600 | mega_baseport = (unsigned long)ioremap(mega_baseport, 128); | |
4601 | if (!mega_baseport) { | |
4602 | printk(KERN_WARNING | |
4603 | "megaraid: could not map hba memory\n"); | |
4604 | goto out_release_region; | |
4605 | } | |
4606 | } else { | |
4607 | flag |= BOARD_IOMAP; | |
4608 | mega_baseport += 0x10; | |
4609 | ||
4610 | if (!request_region(mega_baseport, 16, "megaraid")) | |
4611 | goto out_disable_device; | |
4612 | } | |
4613 | ||
4614 | /* Initialize SCSI Host structure */ | |
4615 | host = scsi_host_alloc(&megaraid_template, sizeof(adapter_t)); | |
4616 | if (!host) | |
4617 | goto out_iounmap; | |
4618 | ||
4619 | adapter = (adapter_t *)host->hostdata; | |
4620 | memset(adapter, 0, sizeof(adapter_t)); | |
4621 | ||
4622 | printk(KERN_NOTICE | |
4623 | "scsi%d:Found MegaRAID controller at 0x%lx, IRQ:%d\n", | |
4624 | host->host_no, mega_baseport, irq); | |
4625 | ||
4626 | adapter->base = mega_baseport; | |
00769ec4 JG |
4627 | if (flag & BOARD_MEMMAP) |
4628 | adapter->mmio_base = (void __iomem *) mega_baseport; | |
1da177e4 LT |
4629 | |
4630 | INIT_LIST_HEAD(&adapter->free_list); | |
4631 | INIT_LIST_HEAD(&adapter->pending_list); | |
4632 | INIT_LIST_HEAD(&adapter->completed_list); | |
4633 | ||
4634 | adapter->flag = flag; | |
4635 | spin_lock_init(&adapter->lock); | |
1da177e4 LT |
4636 | |
4637 | host->cmd_per_lun = max_cmd_per_lun; | |
4638 | host->max_sectors = max_sectors_per_io; | |
4639 | ||
4640 | adapter->dev = pdev; | |
4641 | adapter->host = host; | |
4642 | ||
4643 | adapter->host->irq = irq; | |
4644 | ||
4645 | if (flag & BOARD_MEMMAP) | |
4646 | adapter->host->base = tbase; | |
4647 | else { | |
4648 | adapter->host->io_port = tbase; | |
4649 | adapter->host->n_io_port = 16; | |
4650 | } | |
4651 | ||
4652 | adapter->host->unique_id = (pci_bus << 8) | pci_dev_func; | |
4653 | ||
4654 | /* | |
4655 | * Allocate buffer to issue internal commands. | |
4656 | */ | |
4657 | adapter->mega_buffer = pci_alloc_consistent(adapter->dev, | |
4658 | MEGA_BUFFER_SIZE, &adapter->buf_dma_handle); | |
4659 | if (!adapter->mega_buffer) { | |
4660 | printk(KERN_WARNING "megaraid: out of RAM.\n"); | |
4661 | goto out_host_put; | |
4662 | } | |
4663 | ||
4664 | adapter->scb_list = kmalloc(sizeof(scb_t) * MAX_COMMANDS, GFP_KERNEL); | |
4665 | if (!adapter->scb_list) { | |
4666 | printk(KERN_WARNING "megaraid: out of RAM.\n"); | |
4667 | goto out_free_cmd_buffer; | |
4668 | } | |
4669 | ||
4670 | if (request_irq(irq, (adapter->flag & BOARD_MEMMAP) ? | |
4671 | megaraid_isr_memmapped : megaraid_isr_iomapped, | |
1d6f359a | 4672 | IRQF_SHARED, "megaraid", adapter)) { |
1da177e4 LT |
4673 | printk(KERN_WARNING |
4674 | "megaraid: Couldn't register IRQ %d!\n", irq); | |
4675 | goto out_free_scb_list; | |
4676 | } | |
4677 | ||
4678 | if (mega_setup_mailbox(adapter)) | |
4679 | goto out_free_irq; | |
4680 | ||
4681 | if (mega_query_adapter(adapter)) | |
4682 | goto out_free_mbox; | |
4683 | ||
4684 | /* | |
4685 | * Have checks for some buggy f/w | |
4686 | */ | |
4687 | if ((subsysid == 0x1111) && (subsysvid == 0x1111)) { | |
4688 | /* | |
4689 | * Which firmware | |
4690 | */ | |
4691 | if (!strcmp(adapter->fw_version, "3.00") || | |
4692 | !strcmp(adapter->fw_version, "3.01")) { | |
4693 | ||
4694 | printk( KERN_WARNING | |
4695 | "megaraid: Your card is a Dell PERC " | |
4696 | "2/SC RAID controller with " | |
4697 | "firmware\nmegaraid: 3.00 or 3.01. " | |
4698 | "This driver is known to have " | |
4699 | "corruption issues\nmegaraid: with " | |
4700 | "those firmware versions on this " | |
4701 | "specific card. In order\nmegaraid: " | |
4702 | "to protect your data, please upgrade " | |
4703 | "your firmware to version\nmegaraid: " | |
4704 | "3.10 or later, available from the " | |
4705 | "Dell Technical Support web\n" | |
4706 | "megaraid: site at\nhttp://support." | |
4707 | "dell.com/us/en/filelib/download/" | |
4708 | "index.asp?fileid=2940\n" | |
4709 | ); | |
4710 | } | |
4711 | } | |
4712 | ||
4713 | /* | |
4714 | * If we have a HP 1M(0x60E7)/2M(0x60E8) controller with | |
4715 | * firmware H.01.07, H.01.08, and H.01.09 disable 64 bit | |
4716 | * support, since this firmware cannot handle 64 bit | |
4717 | * addressing | |
4718 | */ | |
4719 | if ((subsysvid == HP_SUBSYS_VID) && | |
4720 | ((subsysid == 0x60E7) || (subsysid == 0x60E8))) { | |
4721 | /* | |
4722 | * which firmware | |
4723 | */ | |
4724 | if (!strcmp(adapter->fw_version, "H01.07") || | |
4725 | !strcmp(adapter->fw_version, "H01.08") || | |
4726 | !strcmp(adapter->fw_version, "H01.09") ) { | |
4727 | printk(KERN_WARNING | |
4728 | "megaraid: Firmware H.01.07, " | |
4729 | "H.01.08, and H.01.09 on 1M/2M " | |
4730 | "controllers\n" | |
4731 | "megaraid: do not support 64 bit " | |
4732 | "addressing.\nmegaraid: DISABLING " | |
4733 | "64 bit support.\n"); | |
4734 | adapter->flag &= ~BOARD_64BIT; | |
4735 | } | |
4736 | } | |
4737 | ||
4738 | if (mega_is_bios_enabled(adapter)) | |
4739 | mega_hbas[hba_count].is_bios_enabled = 1; | |
4740 | mega_hbas[hba_count].hostdata_addr = adapter; | |
4741 | ||
4742 | /* | |
4743 | * Find out which channel is raid and which is scsi. This is | |
4744 | * for ROMB support. | |
4745 | */ | |
4746 | mega_enum_raid_scsi(adapter); | |
4747 | ||
4748 | /* | |
4749 | * Find out if a logical drive is set as the boot drive. If | |
4750 | * there is one, will make that as the first logical drive. | |
4751 | * ROMB: Do we have to boot from a physical drive. Then all | |
4752 | * the physical drives would appear before the logical disks. | |
4753 | * Else, all the physical drives would be exported to the mid | |
4754 | * layer after logical drives. | |
4755 | */ | |
4756 | mega_get_boot_drv(adapter); | |
4757 | ||
4758 | if (adapter->boot_pdrv_enabled) { | |
4759 | j = adapter->product_info.nchannels; | |
4760 | for( i = 0; i < j; i++ ) | |
4761 | adapter->logdrv_chan[i] = 0; | |
4762 | for( i = j; i < NVIRT_CHAN + j; i++ ) | |
4763 | adapter->logdrv_chan[i] = 1; | |
4764 | } else { | |
4765 | for (i = 0; i < NVIRT_CHAN; i++) | |
4766 | adapter->logdrv_chan[i] = 1; | |
4767 | for (i = NVIRT_CHAN; i < MAX_CHANNELS+NVIRT_CHAN; i++) | |
4768 | adapter->logdrv_chan[i] = 0; | |
4769 | adapter->mega_ch_class <<= NVIRT_CHAN; | |
4770 | } | |
4771 | ||
4772 | /* | |
4773 | * Do we support random deletion and addition of logical | |
4774 | * drives | |
4775 | */ | |
4776 | adapter->read_ldidmap = 0; /* set it after first logdrv | |
4777 | delete cmd */ | |
4778 | adapter->support_random_del = mega_support_random_del(adapter); | |
4779 | ||
4780 | /* Initialize SCBs */ | |
4781 | if (mega_init_scb(adapter)) | |
4782 | goto out_free_mbox; | |
4783 | ||
4784 | /* | |
4785 | * Reset the pending commands counter | |
4786 | */ | |
4787 | atomic_set(&adapter->pend_cmds, 0); | |
4788 | ||
4789 | /* | |
4790 | * Reset the adapter quiescent flag | |
4791 | */ | |
4792 | atomic_set(&adapter->quiescent, 0); | |
4793 | ||
4794 | hba_soft_state[hba_count] = adapter; | |
4795 | ||
4796 | /* | |
4797 | * Fill in the structure which needs to be passed back to the | |
4798 | * application when it does an ioctl() for controller related | |
4799 | * information. | |
4800 | */ | |
4801 | i = hba_count; | |
4802 | ||
4803 | mcontroller[i].base = mega_baseport; | |
4804 | mcontroller[i].irq = irq; | |
4805 | mcontroller[i].numldrv = adapter->numldrv; | |
4806 | mcontroller[i].pcibus = pci_bus; | |
4807 | mcontroller[i].pcidev = id->device; | |
4808 | mcontroller[i].pcifun = PCI_FUNC (pci_dev_func); | |
4809 | mcontroller[i].pciid = -1; | |
4810 | mcontroller[i].pcivendor = id->vendor; | |
4811 | mcontroller[i].pcislot = PCI_SLOT(pci_dev_func); | |
4812 | mcontroller[i].uid = (pci_bus << 8) | pci_dev_func; | |
4813 | ||
4814 | ||
4815 | /* Set the Mode of addressing to 64 bit if we can */ | |
4816 | if ((adapter->flag & BOARD_64BIT) && (sizeof(dma_addr_t) == 8)) { | |
6a35528a | 4817 | pci_set_dma_mask(pdev, DMA_BIT_MASK(64)); |
1da177e4 LT |
4818 | adapter->has_64bit_addr = 1; |
4819 | } else { | |
284901a9 | 4820 | pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); |
1da177e4 LT |
4821 | adapter->has_64bit_addr = 0; |
4822 | } | |
4823 | ||
0b950672 | 4824 | mutex_init(&adapter->int_mtx); |
8d115f84 | 4825 | init_completion(&adapter->int_waitq); |
1da177e4 LT |
4826 | |
4827 | adapter->this_id = DEFAULT_INITIATOR_ID; | |
4828 | adapter->host->this_id = DEFAULT_INITIATOR_ID; | |
4829 | ||
4830 | #if MEGA_HAVE_CLUSTERING | |
4831 | /* | |
4832 | * Is cluster support enabled on this controller | |
4833 | * Note: In a cluster the HBAs ( the initiators ) will have | |
4834 | * different target IDs and we cannot assume it to be 7. Call | |
4835 | * to mega_support_cluster() will get the target ids also if | |
4836 | * the cluster support is available | |
4837 | */ | |
4838 | adapter->has_cluster = mega_support_cluster(adapter); | |
4839 | if (adapter->has_cluster) { | |
4840 | printk(KERN_NOTICE | |
4841 | "megaraid: Cluster driver, initiator id:%d\n", | |
4842 | adapter->this_id); | |
4843 | } | |
4844 | #endif | |
4845 | ||
4846 | pci_set_drvdata(pdev, host); | |
4847 | ||
4848 | mega_create_proc_entry(hba_count, mega_proc_dir_entry); | |
4849 | ||
4850 | error = scsi_add_host(host, &pdev->dev); | |
4851 | if (error) | |
4852 | goto out_free_mbox; | |
4853 | ||
4854 | scsi_scan_host(host); | |
4855 | hba_count++; | |
4856 | return 0; | |
4857 | ||
4858 | out_free_mbox: | |
4859 | pci_free_consistent(adapter->dev, sizeof(mbox64_t), | |
4860 | adapter->una_mbox64, adapter->una_mbox64_dma); | |
4861 | out_free_irq: | |
4862 | free_irq(adapter->host->irq, adapter); | |
4863 | out_free_scb_list: | |
4864 | kfree(adapter->scb_list); | |
4865 | out_free_cmd_buffer: | |
4866 | pci_free_consistent(adapter->dev, MEGA_BUFFER_SIZE, | |
4867 | adapter->mega_buffer, adapter->buf_dma_handle); | |
4868 | out_host_put: | |
4869 | scsi_host_put(host); | |
4870 | out_iounmap: | |
4871 | if (flag & BOARD_MEMMAP) | |
4872 | iounmap((void *)mega_baseport); | |
4873 | out_release_region: | |
4874 | if (flag & BOARD_MEMMAP) | |
4875 | release_mem_region(tbase, 128); | |
4876 | else | |
4877 | release_region(mega_baseport, 16); | |
4878 | out_disable_device: | |
4879 | pci_disable_device(pdev); | |
4880 | out: | |
4881 | return error; | |
4882 | } | |
4883 | ||
4884 | static void | |
4885 | __megaraid_shutdown(adapter_t *adapter) | |
4886 | { | |
4887 | u_char raw_mbox[sizeof(struct mbox_out)]; | |
4888 | mbox_t *mbox = (mbox_t *)raw_mbox; | |
4889 | int i; | |
4890 | ||
4891 | /* Flush adapter cache */ | |
4892 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); | |
4893 | raw_mbox[0] = FLUSH_ADAPTER; | |
4894 | ||
4895 | free_irq(adapter->host->irq, adapter); | |
4896 | ||
4897 | /* Issue a blocking (interrupts disabled) command to the card */ | |
4898 | issue_scb_block(adapter, raw_mbox); | |
4899 | ||
4900 | /* Flush disks cache */ | |
4901 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); | |
4902 | raw_mbox[0] = FLUSH_SYSTEM; | |
4903 | ||
4904 | /* Issue a blocking (interrupts disabled) command to the card */ | |
4905 | issue_scb_block(adapter, raw_mbox); | |
4906 | ||
4907 | if (atomic_read(&adapter->pend_cmds) > 0) | |
4908 | printk(KERN_WARNING "megaraid: pending commands!!\n"); | |
4909 | ||
4910 | /* | |
4911 | * Have a delibrate delay to make sure all the caches are | |
4912 | * actually flushed. | |
4913 | */ | |
4914 | for (i = 0; i <= 10; i++) | |
4915 | mdelay(1000); | |
4916 | } | |
4917 | ||
bfd90dce | 4918 | static void __devexit |
1da177e4 LT |
4919 | megaraid_remove_one(struct pci_dev *pdev) |
4920 | { | |
4921 | struct Scsi_Host *host = pci_get_drvdata(pdev); | |
4922 | adapter_t *adapter = (adapter_t *)host->hostdata; | |
1da177e4 LT |
4923 | |
4924 | scsi_remove_host(host); | |
4925 | ||
4926 | __megaraid_shutdown(adapter); | |
4927 | ||
4928 | /* Free our resources */ | |
4929 | if (adapter->flag & BOARD_MEMMAP) { | |
4930 | iounmap((void *)adapter->base); | |
4931 | release_mem_region(adapter->host->base, 128); | |
4932 | } else | |
4933 | release_region(adapter->base, 16); | |
4934 | ||
4935 | mega_free_sgl(adapter); | |
4936 | ||
4937 | #ifdef CONFIG_PROC_FS | |
4938 | if (adapter->controller_proc_dir_entry) { | |
4939 | remove_proc_entry("stat", adapter->controller_proc_dir_entry); | |
4940 | remove_proc_entry("config", | |
4941 | adapter->controller_proc_dir_entry); | |
4942 | remove_proc_entry("mailbox", | |
4943 | adapter->controller_proc_dir_entry); | |
4944 | #if MEGA_HAVE_ENH_PROC | |
4945 | remove_proc_entry("rebuild-rate", | |
4946 | adapter->controller_proc_dir_entry); | |
4947 | remove_proc_entry("battery-status", | |
4948 | adapter->controller_proc_dir_entry); | |
4949 | ||
4950 | remove_proc_entry("diskdrives-ch0", | |
4951 | adapter->controller_proc_dir_entry); | |
4952 | remove_proc_entry("diskdrives-ch1", | |
4953 | adapter->controller_proc_dir_entry); | |
4954 | remove_proc_entry("diskdrives-ch2", | |
4955 | adapter->controller_proc_dir_entry); | |
4956 | remove_proc_entry("diskdrives-ch3", | |
4957 | adapter->controller_proc_dir_entry); | |
4958 | ||
4959 | remove_proc_entry("raiddrives-0-9", | |
4960 | adapter->controller_proc_dir_entry); | |
4961 | remove_proc_entry("raiddrives-10-19", | |
4962 | adapter->controller_proc_dir_entry); | |
4963 | remove_proc_entry("raiddrives-20-29", | |
4964 | adapter->controller_proc_dir_entry); | |
4965 | remove_proc_entry("raiddrives-30-39", | |
4966 | adapter->controller_proc_dir_entry); | |
4967 | #endif | |
84a3c97b | 4968 | { |
4969 | char buf[12] = { 0 }; | |
4970 | sprintf(buf, "hba%d", adapter->host->host_no); | |
4971 | remove_proc_entry(buf, mega_proc_dir_entry); | |
4972 | } | |
1da177e4 LT |
4973 | } |
4974 | #endif | |
4975 | ||
4976 | pci_free_consistent(adapter->dev, MEGA_BUFFER_SIZE, | |
4977 | adapter->mega_buffer, adapter->buf_dma_handle); | |
4978 | kfree(adapter->scb_list); | |
4979 | pci_free_consistent(adapter->dev, sizeof(mbox64_t), | |
4980 | adapter->una_mbox64, adapter->una_mbox64_dma); | |
4981 | ||
4982 | scsi_host_put(host); | |
4983 | pci_disable_device(pdev); | |
4984 | ||
4985 | hba_count--; | |
4986 | } | |
4987 | ||
4988 | static void | |
d18c3db5 | 4989 | megaraid_shutdown(struct pci_dev *pdev) |
1da177e4 | 4990 | { |
d18c3db5 | 4991 | struct Scsi_Host *host = pci_get_drvdata(pdev); |
1da177e4 LT |
4992 | adapter_t *adapter = (adapter_t *)host->hostdata; |
4993 | ||
4994 | __megaraid_shutdown(adapter); | |
4995 | } | |
4996 | ||
4997 | static struct pci_device_id megaraid_pci_tbl[] = { | |
1da177e4 LT |
4998 | {PCI_VENDOR_ID_AMI, PCI_DEVICE_ID_AMI_MEGARAID, |
4999 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, | |
5000 | {PCI_VENDOR_ID_AMI, PCI_DEVICE_ID_AMI_MEGARAID2, | |
5001 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, | |
1da177e4 LT |
5002 | {PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_AMI_MEGARAID3, |
5003 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, | |
1da177e4 LT |
5004 | {0,} |
5005 | }; | |
5006 | MODULE_DEVICE_TABLE(pci, megaraid_pci_tbl); | |
5007 | ||
5008 | static struct pci_driver megaraid_pci_driver = { | |
3542adcb | 5009 | .name = "megaraid_legacy", |
1da177e4 LT |
5010 | .id_table = megaraid_pci_tbl, |
5011 | .probe = megaraid_probe_one, | |
5012 | .remove = __devexit_p(megaraid_remove_one), | |
d18c3db5 | 5013 | .shutdown = megaraid_shutdown, |
1da177e4 LT |
5014 | }; |
5015 | ||
5016 | static int __init megaraid_init(void) | |
5017 | { | |
5018 | int error; | |
5019 | ||
5020 | if ((max_cmd_per_lun <= 0) || (max_cmd_per_lun > MAX_CMD_PER_LUN)) | |
5021 | max_cmd_per_lun = MAX_CMD_PER_LUN; | |
5022 | if (max_mbox_busy_wait > MBOX_BUSY_WAIT) | |
5023 | max_mbox_busy_wait = MBOX_BUSY_WAIT; | |
5024 | ||
5025 | #ifdef CONFIG_PROC_FS | |
c74c120a | 5026 | mega_proc_dir_entry = proc_mkdir("megaraid", NULL); |
1da177e4 LT |
5027 | if (!mega_proc_dir_entry) { |
5028 | printk(KERN_WARNING | |
5029 | "megaraid: failed to create megaraid root\n"); | |
5030 | } | |
5031 | #endif | |
4520b008 | 5032 | error = pci_register_driver(&megaraid_pci_driver); |
1da177e4 LT |
5033 | if (error) { |
5034 | #ifdef CONFIG_PROC_FS | |
c74c120a | 5035 | remove_proc_entry("megaraid", NULL); |
1da177e4 LT |
5036 | #endif |
5037 | return error; | |
5038 | } | |
5039 | ||
5040 | /* | |
5041 | * Register the driver as a character device, for applications | |
5042 | * to access it for ioctls. | |
5043 | * First argument (major) to register_chrdev implies a dynamic | |
5044 | * major number allocation. | |
5045 | */ | |
3492b328 | 5046 | major = register_chrdev(0, "megadev_legacy", &megadev_fops); |
1da177e4 LT |
5047 | if (!major) { |
5048 | printk(KERN_WARNING | |
5049 | "megaraid: failed to register char device\n"); | |
5050 | } | |
5051 | ||
5052 | return 0; | |
5053 | } | |
5054 | ||
5055 | static void __exit megaraid_exit(void) | |
5056 | { | |
5057 | /* | |
5058 | * Unregister the character device interface to the driver. | |
5059 | */ | |
3492b328 | 5060 | unregister_chrdev(major, "megadev_legacy"); |
1da177e4 LT |
5061 | |
5062 | pci_unregister_driver(&megaraid_pci_driver); | |
5063 | ||
5064 | #ifdef CONFIG_PROC_FS | |
c74c120a | 5065 | remove_proc_entry("megaraid", NULL); |
1da177e4 LT |
5066 | #endif |
5067 | } | |
5068 | ||
5069 | module_init(megaraid_init); | |
5070 | module_exit(megaraid_exit); | |
5071 | ||
5072 | /* vi: set ts=8 sw=8 tw=78: */ |