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> |
1da177e4 LT |
49 | #include <scsi/scsicam.h> |
50 | ||
51 | #include "scsi.h" | |
52 | #include <scsi/scsi_host.h> | |
53 | ||
54 | #include "megaraid.h" | |
55 | ||
3492b328 | 56 | #define MEGARAID_MODULE_VERSION "2.00.4" |
1da177e4 | 57 | |
3492b328 JS |
58 | MODULE_AUTHOR ("sju@lsil.com"); |
59 | MODULE_DESCRIPTION ("LSI Logic MegaRAID legacy driver"); | |
1da177e4 LT |
60 | MODULE_LICENSE ("GPL"); |
61 | MODULE_VERSION(MEGARAID_MODULE_VERSION); | |
62 | ||
63 | static unsigned int max_cmd_per_lun = DEF_CMD_PER_LUN; | |
64 | module_param(max_cmd_per_lun, uint, 0); | |
65 | 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)"); | |
66 | ||
67 | static unsigned short int max_sectors_per_io = MAX_SECTORS_PER_IO; | |
68 | module_param(max_sectors_per_io, ushort, 0); | |
69 | MODULE_PARM_DESC(max_sectors_per_io, "Maximum number of sectors per I/O request (default=MAX_SECTORS_PER_IO=128)"); | |
70 | ||
71 | ||
72 | static unsigned short int max_mbox_busy_wait = MBOX_BUSY_WAIT; | |
73 | module_param(max_mbox_busy_wait, ushort, 0); | |
74 | MODULE_PARM_DESC(max_mbox_busy_wait, "Maximum wait for mailbox in microseconds if busy (default=MBOX_BUSY_WAIT=10)"); | |
75 | ||
76 | #define RDINDOOR(adapter) readl((adapter)->base + 0x20) | |
77 | #define RDOUTDOOR(adapter) readl((adapter)->base + 0x2C) | |
78 | #define WRINDOOR(adapter,value) writel(value, (adapter)->base + 0x20) | |
79 | #define WROUTDOOR(adapter,value) writel(value, (adapter)->base + 0x2C) | |
80 | ||
81 | /* | |
82 | * Global variables | |
83 | */ | |
84 | ||
85 | static int hba_count; | |
86 | static adapter_t *hba_soft_state[MAX_CONTROLLERS]; | |
87 | static struct proc_dir_entry *mega_proc_dir_entry; | |
88 | ||
89 | /* For controller re-ordering */ | |
90 | static struct mega_hbas mega_hbas[MAX_CONTROLLERS]; | |
91 | ||
92 | /* | |
93 | * The File Operations structure for the serial/ioctl interface of the driver | |
94 | */ | |
95 | static struct file_operations megadev_fops = { | |
96 | .owner = THIS_MODULE, | |
97 | .ioctl = megadev_ioctl, | |
98 | .open = megadev_open, | |
99 | }; | |
100 | ||
101 | /* | |
102 | * Array to structures for storing the information about the controllers. This | |
103 | * information is sent to the user level applications, when they do an ioctl | |
104 | * for this information. | |
105 | */ | |
106 | static struct mcontroller mcontroller[MAX_CONTROLLERS]; | |
107 | ||
108 | /* The current driver version */ | |
109 | static u32 driver_ver = 0x02000000; | |
110 | ||
111 | /* major number used by the device for character interface */ | |
112 | static int major; | |
113 | ||
114 | #define IS_RAID_CH(hba, ch) (((hba)->mega_ch_class >> (ch)) & 0x01) | |
115 | ||
116 | ||
117 | /* | |
118 | * Debug variable to print some diagnostic messages | |
119 | */ | |
120 | static int trace_level; | |
121 | ||
122 | /** | |
123 | * mega_setup_mailbox() | |
124 | * @adapter - pointer to our soft state | |
125 | * | |
126 | * Allocates a 8 byte aligned memory for the handshake mailbox. | |
127 | */ | |
128 | static int | |
129 | mega_setup_mailbox(adapter_t *adapter) | |
130 | { | |
131 | unsigned long align; | |
132 | ||
133 | adapter->una_mbox64 = pci_alloc_consistent(adapter->dev, | |
134 | sizeof(mbox64_t), &adapter->una_mbox64_dma); | |
135 | ||
136 | if( !adapter->una_mbox64 ) return -1; | |
137 | ||
138 | adapter->mbox = &adapter->una_mbox64->mbox; | |
139 | ||
140 | adapter->mbox = (mbox_t *)((((unsigned long) adapter->mbox) + 15) & | |
141 | (~0UL ^ 0xFUL)); | |
142 | ||
143 | adapter->mbox64 = (mbox64_t *)(((unsigned long)adapter->mbox) - 8); | |
144 | ||
145 | align = ((void *)adapter->mbox) - ((void *)&adapter->una_mbox64->mbox); | |
146 | ||
147 | adapter->mbox_dma = adapter->una_mbox64_dma + 8 + align; | |
148 | ||
149 | /* | |
150 | * Register the mailbox if the controller is an io-mapped controller | |
151 | */ | |
152 | if( adapter->flag & BOARD_IOMAP ) { | |
153 | ||
154 | outb_p(adapter->mbox_dma & 0xFF, | |
155 | adapter->host->io_port + MBOX_PORT0); | |
156 | ||
157 | outb_p((adapter->mbox_dma >> 8) & 0xFF, | |
158 | adapter->host->io_port + MBOX_PORT1); | |
159 | ||
160 | outb_p((adapter->mbox_dma >> 16) & 0xFF, | |
161 | adapter->host->io_port + MBOX_PORT2); | |
162 | ||
163 | outb_p((adapter->mbox_dma >> 24) & 0xFF, | |
164 | adapter->host->io_port + MBOX_PORT3); | |
165 | ||
166 | outb_p(ENABLE_MBOX_BYTE, | |
167 | adapter->host->io_port + ENABLE_MBOX_REGION); | |
168 | ||
169 | irq_ack(adapter); | |
170 | ||
171 | irq_enable(adapter); | |
172 | } | |
173 | ||
174 | return 0; | |
175 | } | |
176 | ||
177 | ||
178 | /* | |
179 | * mega_query_adapter() | |
180 | * @adapter - pointer to our soft state | |
181 | * | |
182 | * Issue the adapter inquiry commands to the controller and find out | |
183 | * information and parameter about the devices attached | |
184 | */ | |
185 | static int | |
186 | mega_query_adapter(adapter_t *adapter) | |
187 | { | |
188 | dma_addr_t prod_info_dma_handle; | |
189 | mega_inquiry3 *inquiry3; | |
190 | u8 raw_mbox[sizeof(struct mbox_out)]; | |
191 | mbox_t *mbox; | |
192 | int retval; | |
193 | ||
194 | /* Initialize adapter inquiry mailbox */ | |
195 | ||
196 | mbox = (mbox_t *)raw_mbox; | |
197 | ||
198 | memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE); | |
199 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); | |
200 | ||
201 | /* | |
202 | * Try to issue Inquiry3 command | |
203 | * if not succeeded, then issue MEGA_MBOXCMD_ADAPTERINQ command and | |
204 | * update enquiry3 structure | |
205 | */ | |
206 | mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle; | |
207 | ||
208 | inquiry3 = (mega_inquiry3 *)adapter->mega_buffer; | |
209 | ||
210 | raw_mbox[0] = FC_NEW_CONFIG; /* i.e. mbox->cmd=0xA1 */ | |
211 | raw_mbox[2] = NC_SUBOP_ENQUIRY3; /* i.e. 0x0F */ | |
212 | raw_mbox[3] = ENQ3_GET_SOLICITED_FULL; /* i.e. 0x02 */ | |
213 | ||
214 | /* Issue a blocking command to the card */ | |
215 | if ((retval = issue_scb_block(adapter, raw_mbox))) { | |
216 | /* the adapter does not support 40ld */ | |
217 | ||
218 | mraid_ext_inquiry *ext_inq; | |
219 | mraid_inquiry *inq; | |
220 | dma_addr_t dma_handle; | |
221 | ||
222 | ext_inq = pci_alloc_consistent(adapter->dev, | |
223 | sizeof(mraid_ext_inquiry), &dma_handle); | |
224 | ||
225 | if( ext_inq == NULL ) return -1; | |
226 | ||
227 | inq = &ext_inq->raid_inq; | |
228 | ||
229 | mbox->m_out.xferaddr = (u32)dma_handle; | |
230 | ||
231 | /*issue old 0x04 command to adapter */ | |
232 | mbox->m_out.cmd = MEGA_MBOXCMD_ADPEXTINQ; | |
233 | ||
234 | issue_scb_block(adapter, raw_mbox); | |
235 | ||
236 | /* | |
237 | * update Enquiry3 and ProductInfo structures with | |
238 | * mraid_inquiry structure | |
239 | */ | |
240 | mega_8_to_40ld(inq, inquiry3, | |
241 | (mega_product_info *)&adapter->product_info); | |
242 | ||
243 | pci_free_consistent(adapter->dev, sizeof(mraid_ext_inquiry), | |
244 | ext_inq, dma_handle); | |
245 | ||
246 | } else { /*adapter supports 40ld */ | |
247 | adapter->flag |= BOARD_40LD; | |
248 | ||
249 | /* | |
250 | * get product_info, which is static information and will be | |
251 | * unchanged | |
252 | */ | |
253 | prod_info_dma_handle = pci_map_single(adapter->dev, (void *) | |
254 | &adapter->product_info, | |
255 | sizeof(mega_product_info), PCI_DMA_FROMDEVICE); | |
256 | ||
257 | mbox->m_out.xferaddr = prod_info_dma_handle; | |
258 | ||
259 | raw_mbox[0] = FC_NEW_CONFIG; /* i.e. mbox->cmd=0xA1 */ | |
260 | raw_mbox[2] = NC_SUBOP_PRODUCT_INFO; /* i.e. 0x0E */ | |
261 | ||
262 | if ((retval = issue_scb_block(adapter, raw_mbox))) | |
263 | printk(KERN_WARNING | |
264 | "megaraid: Product_info cmd failed with error: %d\n", | |
265 | retval); | |
266 | ||
267 | pci_unmap_single(adapter->dev, prod_info_dma_handle, | |
268 | sizeof(mega_product_info), PCI_DMA_FROMDEVICE); | |
269 | } | |
270 | ||
271 | ||
272 | /* | |
273 | * kernel scans the channels from 0 to <= max_channel | |
274 | */ | |
275 | adapter->host->max_channel = | |
276 | adapter->product_info.nchannels + NVIRT_CHAN -1; | |
277 | ||
278 | adapter->host->max_id = 16; /* max targets per channel */ | |
279 | ||
280 | adapter->host->max_lun = 7; /* Upto 7 luns for non disk devices */ | |
281 | ||
282 | adapter->host->cmd_per_lun = max_cmd_per_lun; | |
283 | ||
284 | adapter->numldrv = inquiry3->num_ldrv; | |
285 | ||
286 | adapter->max_cmds = adapter->product_info.max_commands; | |
287 | ||
288 | if(adapter->max_cmds > MAX_COMMANDS) | |
289 | adapter->max_cmds = MAX_COMMANDS; | |
290 | ||
291 | adapter->host->can_queue = adapter->max_cmds - 1; | |
292 | ||
293 | /* | |
294 | * Get the maximum number of scatter-gather elements supported by this | |
295 | * firmware | |
296 | */ | |
297 | mega_get_max_sgl(adapter); | |
298 | ||
299 | adapter->host->sg_tablesize = adapter->sglen; | |
300 | ||
301 | ||
302 | /* use HP firmware and bios version encoding */ | |
303 | if (adapter->product_info.subsysvid == HP_SUBSYS_VID) { | |
304 | sprintf (adapter->fw_version, "%c%d%d.%d%d", | |
305 | adapter->product_info.fw_version[2], | |
306 | adapter->product_info.fw_version[1] >> 8, | |
307 | adapter->product_info.fw_version[1] & 0x0f, | |
308 | adapter->product_info.fw_version[0] >> 8, | |
309 | adapter->product_info.fw_version[0] & 0x0f); | |
310 | sprintf (adapter->bios_version, "%c%d%d.%d%d", | |
311 | adapter->product_info.bios_version[2], | |
312 | adapter->product_info.bios_version[1] >> 8, | |
313 | adapter->product_info.bios_version[1] & 0x0f, | |
314 | adapter->product_info.bios_version[0] >> 8, | |
315 | adapter->product_info.bios_version[0] & 0x0f); | |
316 | } else { | |
317 | memcpy(adapter->fw_version, | |
318 | (char *)adapter->product_info.fw_version, 4); | |
319 | adapter->fw_version[4] = 0; | |
320 | ||
321 | memcpy(adapter->bios_version, | |
322 | (char *)adapter->product_info.bios_version, 4); | |
323 | ||
324 | adapter->bios_version[4] = 0; | |
325 | } | |
326 | ||
327 | printk(KERN_NOTICE "megaraid: [%s:%s] detected %d logical drives.\n", | |
328 | adapter->fw_version, adapter->bios_version, adapter->numldrv); | |
329 | ||
330 | /* | |
331 | * Do we support extended (>10 bytes) cdbs | |
332 | */ | |
333 | adapter->support_ext_cdb = mega_support_ext_cdb(adapter); | |
334 | if (adapter->support_ext_cdb) | |
335 | printk(KERN_NOTICE "megaraid: supports extended CDBs.\n"); | |
336 | ||
337 | ||
338 | return 0; | |
339 | } | |
340 | ||
341 | /** | |
342 | * mega_runpendq() | |
343 | * @adapter - pointer to our soft state | |
344 | * | |
345 | * Runs through the list of pending requests. | |
346 | */ | |
347 | static inline void | |
348 | mega_runpendq(adapter_t *adapter) | |
349 | { | |
350 | if(!list_empty(&adapter->pending_list)) | |
351 | __mega_runpendq(adapter); | |
352 | } | |
353 | ||
354 | /* | |
355 | * megaraid_queue() | |
356 | * @scmd - Issue this scsi command | |
357 | * @done - the callback hook into the scsi mid-layer | |
358 | * | |
359 | * The command queuing entry point for the mid-layer. | |
360 | */ | |
361 | static int | |
362 | megaraid_queue(Scsi_Cmnd *scmd, void (*done)(Scsi_Cmnd *)) | |
363 | { | |
364 | adapter_t *adapter; | |
365 | scb_t *scb; | |
366 | int busy=0; | |
cb0258a2 | 367 | unsigned long flags; |
1da177e4 LT |
368 | |
369 | adapter = (adapter_t *)scmd->device->host->hostdata; | |
370 | ||
371 | scmd->scsi_done = done; | |
372 | ||
373 | ||
374 | /* | |
375 | * Allocate and build a SCB request | |
376 | * busy flag will be set if mega_build_cmd() command could not | |
377 | * allocate scb. We will return non-zero status in that case. | |
378 | * NOTE: scb can be null even though certain commands completed | |
379 | * successfully, e.g., MODE_SENSE and TEST_UNIT_READY, we would | |
380 | * return 0 in that case. | |
381 | */ | |
382 | ||
cb0258a2 | 383 | spin_lock_irqsave(&adapter->lock, flags); |
1da177e4 | 384 | scb = mega_build_cmd(adapter, scmd, &busy); |
238f9b06 CH |
385 | if (!scb) |
386 | goto out; | |
1da177e4 | 387 | |
238f9b06 CH |
388 | scb->state |= SCB_PENDQ; |
389 | list_add_tail(&scb->list, &adapter->pending_list); | |
1da177e4 | 390 | |
238f9b06 CH |
391 | /* |
392 | * Check if the HBA is in quiescent state, e.g., during a | |
393 | * delete logical drive opertion. If it is, don't run | |
394 | * the pending_list. | |
395 | */ | |
396 | if (atomic_read(&adapter->quiescent) == 0) | |
397 | mega_runpendq(adapter); | |
1da177e4 | 398 | |
238f9b06 CH |
399 | busy = 0; |
400 | out: | |
401 | spin_unlock_irqrestore(&adapter->lock, flags); | |
1da177e4 LT |
402 | return busy; |
403 | } | |
404 | ||
405 | /** | |
406 | * mega_allocate_scb() | |
407 | * @adapter - pointer to our soft state | |
408 | * @cmd - scsi command from the mid-layer | |
409 | * | |
410 | * Allocate a SCB structure. This is the central structure for controller | |
411 | * commands. | |
412 | */ | |
413 | static inline scb_t * | |
414 | mega_allocate_scb(adapter_t *adapter, Scsi_Cmnd *cmd) | |
415 | { | |
416 | struct list_head *head = &adapter->free_list; | |
417 | scb_t *scb; | |
418 | ||
419 | /* Unlink command from Free List */ | |
420 | if( !list_empty(head) ) { | |
421 | ||
422 | scb = list_entry(head->next, scb_t, list); | |
423 | ||
424 | list_del_init(head->next); | |
425 | ||
426 | scb->state = SCB_ACTIVE; | |
427 | scb->cmd = cmd; | |
428 | scb->dma_type = MEGA_DMA_TYPE_NONE; | |
429 | ||
430 | return scb; | |
431 | } | |
432 | ||
433 | return NULL; | |
434 | } | |
435 | ||
436 | /** | |
437 | * mega_get_ldrv_num() | |
438 | * @adapter - pointer to our soft state | |
439 | * @cmd - scsi mid layer command | |
440 | * @channel - channel on the controller | |
441 | * | |
442 | * Calculate the logical drive number based on the information in scsi command | |
443 | * and the channel number. | |
444 | */ | |
445 | static inline int | |
446 | mega_get_ldrv_num(adapter_t *adapter, Scsi_Cmnd *cmd, int channel) | |
447 | { | |
448 | int tgt; | |
449 | int ldrv_num; | |
450 | ||
451 | tgt = cmd->device->id; | |
452 | ||
453 | if ( tgt > adapter->this_id ) | |
454 | tgt--; /* we do not get inquires for initiator id */ | |
455 | ||
456 | ldrv_num = (channel * 15) + tgt; | |
457 | ||
458 | ||
459 | /* | |
460 | * If we have a logical drive with boot enabled, project it first | |
461 | */ | |
462 | if( adapter->boot_ldrv_enabled ) { | |
463 | if( ldrv_num == 0 ) { | |
464 | ldrv_num = adapter->boot_ldrv; | |
465 | } | |
466 | else { | |
467 | if( ldrv_num <= adapter->boot_ldrv ) { | |
468 | ldrv_num--; | |
469 | } | |
470 | } | |
471 | } | |
472 | ||
473 | /* | |
474 | * If "delete logical drive" feature is enabled on this controller. | |
475 | * Do only if at least one delete logical drive operation was done. | |
476 | * | |
477 | * Also, after logical drive deletion, instead of logical drive number, | |
478 | * the value returned should be 0x80+logical drive id. | |
479 | * | |
480 | * These is valid only for IO commands. | |
481 | */ | |
482 | ||
483 | if (adapter->support_random_del && adapter->read_ldidmap ) | |
484 | switch (cmd->cmnd[0]) { | |
485 | case READ_6: /* fall through */ | |
486 | case WRITE_6: /* fall through */ | |
487 | case READ_10: /* fall through */ | |
488 | case WRITE_10: | |
489 | ldrv_num += 0x80; | |
490 | } | |
491 | ||
492 | return ldrv_num; | |
493 | } | |
494 | ||
495 | /** | |
496 | * mega_build_cmd() | |
497 | * @adapter - pointer to our soft state | |
498 | * @cmd - Prepare using this scsi command | |
499 | * @busy - busy flag if no resources | |
500 | * | |
501 | * Prepares a command and scatter gather list for the controller. This routine | |
502 | * also finds out if the commands is intended for a logical drive or a | |
503 | * physical device and prepares the controller command accordingly. | |
504 | * | |
505 | * We also re-order the logical drives and physical devices based on their | |
506 | * boot settings. | |
507 | */ | |
508 | static scb_t * | |
509 | mega_build_cmd(adapter_t *adapter, Scsi_Cmnd *cmd, int *busy) | |
510 | { | |
511 | mega_ext_passthru *epthru; | |
512 | mega_passthru *pthru; | |
513 | scb_t *scb; | |
514 | mbox_t *mbox; | |
515 | long seg; | |
516 | char islogical; | |
517 | int max_ldrv_num; | |
518 | int channel = 0; | |
519 | int target = 0; | |
520 | int ldrv_num = 0; /* logical drive number */ | |
521 | ||
522 | ||
523 | /* | |
524 | * filter the internal and ioctl commands | |
525 | */ | |
526 | if((cmd->cmnd[0] == MEGA_INTERNAL_CMD)) { | |
5d5ff44f | 527 | return cmd->request_buffer; |
1da177e4 LT |
528 | } |
529 | ||
530 | ||
531 | /* | |
532 | * We know what channels our logical drives are on - mega_find_card() | |
533 | */ | |
534 | islogical = adapter->logdrv_chan[cmd->device->channel]; | |
535 | ||
536 | /* | |
537 | * The theory: If physical drive is chosen for boot, all the physical | |
538 | * devices are exported before the logical drives, otherwise physical | |
539 | * devices are pushed after logical drives, in which case - Kernel sees | |
540 | * the physical devices on virtual channel which is obviously converted | |
541 | * to actual channel on the HBA. | |
542 | */ | |
543 | if( adapter->boot_pdrv_enabled ) { | |
544 | if( islogical ) { | |
545 | /* logical channel */ | |
546 | channel = cmd->device->channel - | |
547 | adapter->product_info.nchannels; | |
548 | } | |
549 | else { | |
550 | /* this is physical channel */ | |
551 | channel = cmd->device->channel; | |
552 | target = cmd->device->id; | |
553 | ||
554 | /* | |
555 | * boot from a physical disk, that disk needs to be | |
556 | * exposed first IF both the channels are SCSI, then | |
557 | * booting from the second channel is not allowed. | |
558 | */ | |
559 | if( target == 0 ) { | |
560 | target = adapter->boot_pdrv_tgt; | |
561 | } | |
562 | else if( target == adapter->boot_pdrv_tgt ) { | |
563 | target = 0; | |
564 | } | |
565 | } | |
566 | } | |
567 | else { | |
568 | if( islogical ) { | |
569 | /* this is the logical channel */ | |
570 | channel = cmd->device->channel; | |
571 | } | |
572 | else { | |
573 | /* physical channel */ | |
574 | channel = cmd->device->channel - NVIRT_CHAN; | |
575 | target = cmd->device->id; | |
576 | } | |
577 | } | |
578 | ||
579 | ||
580 | if(islogical) { | |
581 | ||
582 | /* have just LUN 0 for each target on virtual channels */ | |
583 | if (cmd->device->lun) { | |
584 | cmd->result = (DID_BAD_TARGET << 16); | |
585 | cmd->scsi_done(cmd); | |
586 | return NULL; | |
587 | } | |
588 | ||
589 | ldrv_num = mega_get_ldrv_num(adapter, cmd, channel); | |
590 | ||
591 | ||
592 | max_ldrv_num = (adapter->flag & BOARD_40LD) ? | |
593 | MAX_LOGICAL_DRIVES_40LD : MAX_LOGICAL_DRIVES_8LD; | |
594 | ||
595 | /* | |
596 | * max_ldrv_num increases by 0x80 if some logical drive was | |
597 | * deleted. | |
598 | */ | |
599 | if(adapter->read_ldidmap) | |
600 | max_ldrv_num += 0x80; | |
601 | ||
602 | if(ldrv_num > max_ldrv_num ) { | |
603 | cmd->result = (DID_BAD_TARGET << 16); | |
604 | cmd->scsi_done(cmd); | |
605 | return NULL; | |
606 | } | |
607 | ||
608 | } | |
609 | else { | |
610 | if( cmd->device->lun > 7) { | |
611 | /* | |
612 | * Do not support lun >7 for physically accessed | |
613 | * devices | |
614 | */ | |
615 | cmd->result = (DID_BAD_TARGET << 16); | |
616 | cmd->scsi_done(cmd); | |
617 | return NULL; | |
618 | } | |
619 | } | |
620 | ||
621 | /* | |
622 | * | |
623 | * Logical drive commands | |
624 | * | |
625 | */ | |
626 | if(islogical) { | |
627 | switch (cmd->cmnd[0]) { | |
628 | case TEST_UNIT_READY: | |
1da177e4 LT |
629 | #if MEGA_HAVE_CLUSTERING |
630 | /* | |
631 | * Do we support clustering and is the support enabled | |
632 | * If no, return success always | |
633 | */ | |
634 | if( !adapter->has_cluster ) { | |
635 | cmd->result = (DID_OK << 16); | |
636 | cmd->scsi_done(cmd); | |
637 | return NULL; | |
638 | } | |
639 | ||
640 | if(!(scb = mega_allocate_scb(adapter, cmd))) { | |
641 | *busy = 1; | |
642 | return NULL; | |
643 | } | |
644 | ||
645 | scb->raw_mbox[0] = MEGA_CLUSTER_CMD; | |
646 | scb->raw_mbox[2] = MEGA_RESERVATION_STATUS; | |
647 | scb->raw_mbox[3] = ldrv_num; | |
648 | ||
649 | scb->dma_direction = PCI_DMA_NONE; | |
650 | ||
651 | return scb; | |
652 | #else | |
653 | cmd->result = (DID_OK << 16); | |
654 | cmd->scsi_done(cmd); | |
655 | return NULL; | |
656 | #endif | |
657 | ||
51c928c3 JB |
658 | case MODE_SENSE: { |
659 | char *buf; | |
660 | ||
661 | if (cmd->use_sg) { | |
662 | struct scatterlist *sg; | |
663 | ||
664 | sg = (struct scatterlist *)cmd->request_buffer; | |
665 | buf = kmap_atomic(sg->page, KM_IRQ0) + | |
666 | sg->offset; | |
667 | } else | |
668 | buf = cmd->request_buffer; | |
f0353301 | 669 | memset(buf, 0, cmd->cmnd[4]); |
51c928c3 JB |
670 | if (cmd->use_sg) { |
671 | struct scatterlist *sg; | |
672 | ||
673 | sg = (struct scatterlist *)cmd->request_buffer; | |
674 | kunmap_atomic(buf - sg->offset, KM_IRQ0); | |
675 | } | |
1da177e4 LT |
676 | cmd->result = (DID_OK << 16); |
677 | cmd->scsi_done(cmd); | |
678 | return NULL; | |
51c928c3 | 679 | } |
1da177e4 LT |
680 | |
681 | case READ_CAPACITY: | |
682 | case INQUIRY: | |
683 | ||
684 | if(!(adapter->flag & (1L << cmd->device->channel))) { | |
685 | ||
686 | printk(KERN_NOTICE | |
687 | "scsi%d: scanning scsi channel %d ", | |
688 | adapter->host->host_no, | |
689 | cmd->device->channel); | |
690 | printk("for logical drives.\n"); | |
691 | ||
692 | adapter->flag |= (1L << cmd->device->channel); | |
693 | } | |
694 | ||
695 | /* Allocate a SCB and initialize passthru */ | |
696 | if(!(scb = mega_allocate_scb(adapter, cmd))) { | |
697 | *busy = 1; | |
698 | return NULL; | |
699 | } | |
700 | pthru = scb->pthru; | |
701 | ||
702 | mbox = (mbox_t *)scb->raw_mbox; | |
703 | memset(mbox, 0, sizeof(scb->raw_mbox)); | |
704 | memset(pthru, 0, sizeof(mega_passthru)); | |
705 | ||
706 | pthru->timeout = 0; | |
707 | pthru->ars = 1; | |
708 | pthru->reqsenselen = 14; | |
709 | pthru->islogical = 1; | |
710 | pthru->logdrv = ldrv_num; | |
711 | pthru->cdblen = cmd->cmd_len; | |
712 | memcpy(pthru->cdb, cmd->cmnd, cmd->cmd_len); | |
713 | ||
714 | if( adapter->has_64bit_addr ) { | |
715 | mbox->m_out.cmd = MEGA_MBOXCMD_PASSTHRU64; | |
716 | } | |
717 | else { | |
718 | mbox->m_out.cmd = MEGA_MBOXCMD_PASSTHRU; | |
719 | } | |
720 | ||
721 | scb->dma_direction = PCI_DMA_FROMDEVICE; | |
722 | ||
723 | pthru->numsgelements = mega_build_sglist(adapter, scb, | |
724 | &pthru->dataxferaddr, &pthru->dataxferlen); | |
725 | ||
726 | mbox->m_out.xferaddr = scb->pthru_dma_addr; | |
727 | ||
728 | return scb; | |
729 | ||
730 | case READ_6: | |
731 | case WRITE_6: | |
732 | case READ_10: | |
733 | case WRITE_10: | |
734 | case READ_12: | |
735 | case WRITE_12: | |
736 | ||
737 | /* Allocate a SCB and initialize mailbox */ | |
738 | if(!(scb = mega_allocate_scb(adapter, cmd))) { | |
739 | *busy = 1; | |
740 | return NULL; | |
741 | } | |
742 | mbox = (mbox_t *)scb->raw_mbox; | |
743 | ||
744 | memset(mbox, 0, sizeof(scb->raw_mbox)); | |
745 | mbox->m_out.logdrv = ldrv_num; | |
746 | ||
747 | /* | |
748 | * A little hack: 2nd bit is zero for all scsi read | |
749 | * commands and is set for all scsi write commands | |
750 | */ | |
751 | if( adapter->has_64bit_addr ) { | |
752 | mbox->m_out.cmd = (*cmd->cmnd & 0x02) ? | |
753 | MEGA_MBOXCMD_LWRITE64: | |
754 | MEGA_MBOXCMD_LREAD64 ; | |
755 | } | |
756 | else { | |
757 | mbox->m_out.cmd = (*cmd->cmnd & 0x02) ? | |
758 | MEGA_MBOXCMD_LWRITE: | |
759 | MEGA_MBOXCMD_LREAD ; | |
760 | } | |
761 | ||
762 | /* | |
763 | * 6-byte READ(0x08) or WRITE(0x0A) cdb | |
764 | */ | |
765 | if( cmd->cmd_len == 6 ) { | |
766 | mbox->m_out.numsectors = (u32) cmd->cmnd[4]; | |
767 | mbox->m_out.lba = | |
768 | ((u32)cmd->cmnd[1] << 16) | | |
769 | ((u32)cmd->cmnd[2] << 8) | | |
770 | (u32)cmd->cmnd[3]; | |
771 | ||
772 | mbox->m_out.lba &= 0x1FFFFF; | |
773 | ||
774 | #if MEGA_HAVE_STATS | |
775 | /* | |
776 | * Take modulo 0x80, since the logical drive | |
777 | * number increases by 0x80 when a logical | |
778 | * drive was deleted | |
779 | */ | |
780 | if (*cmd->cmnd == READ_6) { | |
781 | adapter->nreads[ldrv_num%0x80]++; | |
782 | adapter->nreadblocks[ldrv_num%0x80] += | |
783 | mbox->m_out.numsectors; | |
784 | } else { | |
785 | adapter->nwrites[ldrv_num%0x80]++; | |
786 | adapter->nwriteblocks[ldrv_num%0x80] += | |
787 | mbox->m_out.numsectors; | |
788 | } | |
789 | #endif | |
790 | } | |
791 | ||
792 | /* | |
793 | * 10-byte READ(0x28) or WRITE(0x2A) cdb | |
794 | */ | |
795 | if( cmd->cmd_len == 10 ) { | |
796 | mbox->m_out.numsectors = | |
797 | (u32)cmd->cmnd[8] | | |
798 | ((u32)cmd->cmnd[7] << 8); | |
799 | mbox->m_out.lba = | |
800 | ((u32)cmd->cmnd[2] << 24) | | |
801 | ((u32)cmd->cmnd[3] << 16) | | |
802 | ((u32)cmd->cmnd[4] << 8) | | |
803 | (u32)cmd->cmnd[5]; | |
804 | ||
805 | #if MEGA_HAVE_STATS | |
806 | if (*cmd->cmnd == READ_10) { | |
807 | adapter->nreads[ldrv_num%0x80]++; | |
808 | adapter->nreadblocks[ldrv_num%0x80] += | |
809 | mbox->m_out.numsectors; | |
810 | } else { | |
811 | adapter->nwrites[ldrv_num%0x80]++; | |
812 | adapter->nwriteblocks[ldrv_num%0x80] += | |
813 | mbox->m_out.numsectors; | |
814 | } | |
815 | #endif | |
816 | } | |
817 | ||
818 | /* | |
819 | * 12-byte READ(0xA8) or WRITE(0xAA) cdb | |
820 | */ | |
821 | if( cmd->cmd_len == 12 ) { | |
822 | mbox->m_out.lba = | |
823 | ((u32)cmd->cmnd[2] << 24) | | |
824 | ((u32)cmd->cmnd[3] << 16) | | |
825 | ((u32)cmd->cmnd[4] << 8) | | |
826 | (u32)cmd->cmnd[5]; | |
827 | ||
828 | mbox->m_out.numsectors = | |
829 | ((u32)cmd->cmnd[6] << 24) | | |
830 | ((u32)cmd->cmnd[7] << 16) | | |
831 | ((u32)cmd->cmnd[8] << 8) | | |
832 | (u32)cmd->cmnd[9]; | |
833 | ||
834 | #if MEGA_HAVE_STATS | |
835 | if (*cmd->cmnd == READ_12) { | |
836 | adapter->nreads[ldrv_num%0x80]++; | |
837 | adapter->nreadblocks[ldrv_num%0x80] += | |
838 | mbox->m_out.numsectors; | |
839 | } else { | |
840 | adapter->nwrites[ldrv_num%0x80]++; | |
841 | adapter->nwriteblocks[ldrv_num%0x80] += | |
842 | mbox->m_out.numsectors; | |
843 | } | |
844 | #endif | |
845 | } | |
846 | ||
847 | /* | |
848 | * If it is a read command | |
849 | */ | |
850 | if( (*cmd->cmnd & 0x0F) == 0x08 ) { | |
851 | scb->dma_direction = PCI_DMA_FROMDEVICE; | |
852 | } | |
853 | else { | |
854 | scb->dma_direction = PCI_DMA_TODEVICE; | |
855 | } | |
856 | ||
857 | /* Calculate Scatter-Gather info */ | |
858 | mbox->m_out.numsgelements = mega_build_sglist(adapter, scb, | |
859 | (u32 *)&mbox->m_out.xferaddr, (u32 *)&seg); | |
860 | ||
861 | return scb; | |
862 | ||
863 | #if MEGA_HAVE_CLUSTERING | |
864 | case RESERVE: /* Fall through */ | |
865 | case RELEASE: | |
866 | ||
867 | /* | |
868 | * Do we support clustering and is the support enabled | |
869 | */ | |
870 | if( ! adapter->has_cluster ) { | |
871 | ||
872 | cmd->result = (DID_BAD_TARGET << 16); | |
873 | cmd->scsi_done(cmd); | |
874 | return NULL; | |
875 | } | |
876 | ||
877 | /* Allocate a SCB and initialize mailbox */ | |
878 | if(!(scb = mega_allocate_scb(adapter, cmd))) { | |
879 | *busy = 1; | |
880 | return NULL; | |
881 | } | |
882 | ||
883 | scb->raw_mbox[0] = MEGA_CLUSTER_CMD; | |
884 | scb->raw_mbox[2] = ( *cmd->cmnd == RESERVE ) ? | |
885 | MEGA_RESERVE_LD : MEGA_RELEASE_LD; | |
886 | ||
887 | scb->raw_mbox[3] = ldrv_num; | |
888 | ||
889 | scb->dma_direction = PCI_DMA_NONE; | |
890 | ||
891 | return scb; | |
892 | #endif | |
893 | ||
894 | default: | |
895 | cmd->result = (DID_BAD_TARGET << 16); | |
896 | cmd->scsi_done(cmd); | |
897 | return NULL; | |
898 | } | |
899 | } | |
900 | ||
901 | /* | |
902 | * Passthru drive commands | |
903 | */ | |
904 | else { | |
905 | /* Allocate a SCB and initialize passthru */ | |
906 | if(!(scb = mega_allocate_scb(adapter, cmd))) { | |
907 | *busy = 1; | |
908 | return NULL; | |
909 | } | |
910 | ||
911 | mbox = (mbox_t *)scb->raw_mbox; | |
912 | memset(mbox, 0, sizeof(scb->raw_mbox)); | |
913 | ||
914 | if( adapter->support_ext_cdb ) { | |
915 | ||
916 | epthru = mega_prepare_extpassthru(adapter, scb, cmd, | |
917 | channel, target); | |
918 | ||
919 | mbox->m_out.cmd = MEGA_MBOXCMD_EXTPTHRU; | |
920 | ||
921 | mbox->m_out.xferaddr = scb->epthru_dma_addr; | |
922 | ||
923 | } | |
924 | else { | |
925 | ||
926 | pthru = mega_prepare_passthru(adapter, scb, cmd, | |
927 | channel, target); | |
928 | ||
929 | /* Initialize mailbox */ | |
930 | if( adapter->has_64bit_addr ) { | |
931 | mbox->m_out.cmd = MEGA_MBOXCMD_PASSTHRU64; | |
932 | } | |
933 | else { | |
934 | mbox->m_out.cmd = MEGA_MBOXCMD_PASSTHRU; | |
935 | } | |
936 | ||
937 | mbox->m_out.xferaddr = scb->pthru_dma_addr; | |
938 | ||
939 | } | |
940 | return scb; | |
941 | } | |
942 | return NULL; | |
943 | } | |
944 | ||
945 | ||
946 | /** | |
947 | * mega_prepare_passthru() | |
948 | * @adapter - pointer to our soft state | |
949 | * @scb - our scsi control block | |
950 | * @cmd - scsi command from the mid-layer | |
951 | * @channel - actual channel on the controller | |
952 | * @target - actual id on the controller. | |
953 | * | |
954 | * prepare a command for the scsi physical devices. | |
955 | */ | |
956 | static mega_passthru * | |
957 | mega_prepare_passthru(adapter_t *adapter, scb_t *scb, Scsi_Cmnd *cmd, | |
958 | int channel, int target) | |
959 | { | |
960 | mega_passthru *pthru; | |
961 | ||
962 | pthru = scb->pthru; | |
963 | memset(pthru, 0, sizeof (mega_passthru)); | |
964 | ||
965 | /* 0=6sec/1=60sec/2=10min/3=3hrs */ | |
966 | pthru->timeout = 2; | |
967 | ||
968 | pthru->ars = 1; | |
969 | pthru->reqsenselen = 14; | |
970 | pthru->islogical = 0; | |
971 | ||
972 | pthru->channel = (adapter->flag & BOARD_40LD) ? 0 : channel; | |
973 | ||
974 | pthru->target = (adapter->flag & BOARD_40LD) ? | |
975 | (channel << 4) | target : target; | |
976 | ||
977 | pthru->cdblen = cmd->cmd_len; | |
978 | pthru->logdrv = cmd->device->lun; | |
979 | ||
980 | memcpy(pthru->cdb, cmd->cmnd, cmd->cmd_len); | |
981 | ||
982 | /* Not sure about the direction */ | |
983 | scb->dma_direction = PCI_DMA_BIDIRECTIONAL; | |
984 | ||
985 | /* Special Code for Handling READ_CAPA/ INQ using bounce buffers */ | |
986 | switch (cmd->cmnd[0]) { | |
987 | case INQUIRY: | |
988 | case READ_CAPACITY: | |
989 | if(!(adapter->flag & (1L << cmd->device->channel))) { | |
990 | ||
991 | printk(KERN_NOTICE | |
992 | "scsi%d: scanning scsi channel %d [P%d] ", | |
993 | adapter->host->host_no, | |
994 | cmd->device->channel, channel); | |
995 | printk("for physical devices.\n"); | |
996 | ||
997 | adapter->flag |= (1L << cmd->device->channel); | |
998 | } | |
999 | /* Fall through */ | |
1000 | default: | |
1001 | pthru->numsgelements = mega_build_sglist(adapter, scb, | |
1002 | &pthru->dataxferaddr, &pthru->dataxferlen); | |
1003 | break; | |
1004 | } | |
1005 | return pthru; | |
1006 | } | |
1007 | ||
1008 | ||
1009 | /** | |
1010 | * mega_prepare_extpassthru() | |
1011 | * @adapter - pointer to our soft state | |
1012 | * @scb - our scsi control block | |
1013 | * @cmd - scsi command from the mid-layer | |
1014 | * @channel - actual channel on the controller | |
1015 | * @target - actual id on the controller. | |
1016 | * | |
1017 | * prepare a command for the scsi physical devices. This rountine prepares | |
1018 | * commands for devices which can take extended CDBs (>10 bytes) | |
1019 | */ | |
1020 | static mega_ext_passthru * | |
1021 | mega_prepare_extpassthru(adapter_t *adapter, scb_t *scb, Scsi_Cmnd *cmd, | |
1022 | int channel, int target) | |
1023 | { | |
1024 | mega_ext_passthru *epthru; | |
1025 | ||
1026 | epthru = scb->epthru; | |
1027 | memset(epthru, 0, sizeof(mega_ext_passthru)); | |
1028 | ||
1029 | /* 0=6sec/1=60sec/2=10min/3=3hrs */ | |
1030 | epthru->timeout = 2; | |
1031 | ||
1032 | epthru->ars = 1; | |
1033 | epthru->reqsenselen = 14; | |
1034 | epthru->islogical = 0; | |
1035 | ||
1036 | epthru->channel = (adapter->flag & BOARD_40LD) ? 0 : channel; | |
1037 | epthru->target = (adapter->flag & BOARD_40LD) ? | |
1038 | (channel << 4) | target : target; | |
1039 | ||
1040 | epthru->cdblen = cmd->cmd_len; | |
1041 | epthru->logdrv = cmd->device->lun; | |
1042 | ||
1043 | memcpy(epthru->cdb, cmd->cmnd, cmd->cmd_len); | |
1044 | ||
1045 | /* Not sure about the direction */ | |
1046 | scb->dma_direction = PCI_DMA_BIDIRECTIONAL; | |
1047 | ||
1048 | switch(cmd->cmnd[0]) { | |
1049 | case INQUIRY: | |
1050 | case READ_CAPACITY: | |
1051 | if(!(adapter->flag & (1L << cmd->device->channel))) { | |
1052 | ||
1053 | printk(KERN_NOTICE | |
1054 | "scsi%d: scanning scsi channel %d [P%d] ", | |
1055 | adapter->host->host_no, | |
1056 | cmd->device->channel, channel); | |
1057 | printk("for physical devices.\n"); | |
1058 | ||
1059 | adapter->flag |= (1L << cmd->device->channel); | |
1060 | } | |
1061 | /* Fall through */ | |
1062 | default: | |
1063 | epthru->numsgelements = mega_build_sglist(adapter, scb, | |
1064 | &epthru->dataxferaddr, &epthru->dataxferlen); | |
1065 | break; | |
1066 | } | |
1067 | ||
1068 | return epthru; | |
1069 | } | |
1070 | ||
1071 | static void | |
1072 | __mega_runpendq(adapter_t *adapter) | |
1073 | { | |
1074 | scb_t *scb; | |
1075 | struct list_head *pos, *next; | |
1076 | ||
1077 | /* Issue any pending commands to the card */ | |
1078 | list_for_each_safe(pos, next, &adapter->pending_list) { | |
1079 | ||
1080 | scb = list_entry(pos, scb_t, list); | |
1081 | ||
1082 | if( !(scb->state & SCB_ISSUED) ) { | |
1083 | ||
1084 | if( issue_scb(adapter, scb) != 0 ) | |
1085 | return; | |
1086 | } | |
1087 | } | |
1088 | ||
1089 | return; | |
1090 | } | |
1091 | ||
1092 | ||
1093 | /** | |
1094 | * issue_scb() | |
1095 | * @adapter - pointer to our soft state | |
1096 | * @scb - scsi control block | |
1097 | * | |
1098 | * Post a command to the card if the mailbox is available, otherwise return | |
1099 | * busy. We also take the scb from the pending list if the mailbox is | |
1100 | * available. | |
1101 | */ | |
1102 | static int | |
1103 | issue_scb(adapter_t *adapter, scb_t *scb) | |
1104 | { | |
1105 | volatile mbox64_t *mbox64 = adapter->mbox64; | |
1106 | volatile mbox_t *mbox = adapter->mbox; | |
1107 | unsigned int i = 0; | |
1108 | ||
1109 | if(unlikely(mbox->m_in.busy)) { | |
1110 | do { | |
1111 | udelay(1); | |
1112 | i++; | |
1113 | } while( mbox->m_in.busy && (i < max_mbox_busy_wait) ); | |
1114 | ||
1115 | if(mbox->m_in.busy) return -1; | |
1116 | } | |
1117 | ||
1118 | /* Copy mailbox data into host structure */ | |
1119 | memcpy((char *)&mbox->m_out, (char *)scb->raw_mbox, | |
1120 | sizeof(struct mbox_out)); | |
1121 | ||
1122 | mbox->m_out.cmdid = scb->idx; /* Set cmdid */ | |
1123 | mbox->m_in.busy = 1; /* Set busy */ | |
1124 | ||
1125 | ||
1126 | /* | |
1127 | * Increment the pending queue counter | |
1128 | */ | |
1129 | atomic_inc(&adapter->pend_cmds); | |
1130 | ||
1131 | switch (mbox->m_out.cmd) { | |
1132 | case MEGA_MBOXCMD_LREAD64: | |
1133 | case MEGA_MBOXCMD_LWRITE64: | |
1134 | case MEGA_MBOXCMD_PASSTHRU64: | |
1135 | case MEGA_MBOXCMD_EXTPTHRU: | |
1136 | mbox64->xfer_segment_lo = mbox->m_out.xferaddr; | |
1137 | mbox64->xfer_segment_hi = 0; | |
1138 | mbox->m_out.xferaddr = 0xFFFFFFFF; | |
1139 | break; | |
1140 | default: | |
1141 | mbox64->xfer_segment_lo = 0; | |
1142 | mbox64->xfer_segment_hi = 0; | |
1143 | } | |
1144 | ||
1145 | /* | |
1146 | * post the command | |
1147 | */ | |
1148 | scb->state |= SCB_ISSUED; | |
1149 | ||
1150 | if( likely(adapter->flag & BOARD_MEMMAP) ) { | |
1151 | mbox->m_in.poll = 0; | |
1152 | mbox->m_in.ack = 0; | |
1153 | WRINDOOR(adapter, adapter->mbox_dma | 0x1); | |
1154 | } | |
1155 | else { | |
1156 | irq_enable(adapter); | |
1157 | issue_command(adapter); | |
1158 | } | |
1159 | ||
1160 | return 0; | |
1161 | } | |
1162 | ||
1163 | /* | |
1164 | * Wait until the controller's mailbox is available | |
1165 | */ | |
1166 | static inline int | |
1167 | mega_busywait_mbox (adapter_t *adapter) | |
1168 | { | |
1169 | if (adapter->mbox->m_in.busy) | |
1170 | return __mega_busywait_mbox(adapter); | |
1171 | return 0; | |
1172 | } | |
1173 | ||
1174 | /** | |
1175 | * issue_scb_block() | |
1176 | * @adapter - pointer to our soft state | |
1177 | * @raw_mbox - the mailbox | |
1178 | * | |
1179 | * Issue a scb in synchronous and non-interrupt mode | |
1180 | */ | |
1181 | static int | |
1182 | issue_scb_block(adapter_t *adapter, u_char *raw_mbox) | |
1183 | { | |
1184 | volatile mbox64_t *mbox64 = adapter->mbox64; | |
1185 | volatile mbox_t *mbox = adapter->mbox; | |
1186 | u8 byte; | |
1187 | ||
1188 | /* Wait until mailbox is free */ | |
1189 | if(mega_busywait_mbox (adapter)) | |
1190 | goto bug_blocked_mailbox; | |
1191 | ||
1192 | /* Copy mailbox data into host structure */ | |
1193 | memcpy((char *) mbox, raw_mbox, sizeof(struct mbox_out)); | |
1194 | mbox->m_out.cmdid = 0xFE; | |
1195 | mbox->m_in.busy = 1; | |
1196 | ||
1197 | switch (raw_mbox[0]) { | |
1198 | case MEGA_MBOXCMD_LREAD64: | |
1199 | case MEGA_MBOXCMD_LWRITE64: | |
1200 | case MEGA_MBOXCMD_PASSTHRU64: | |
1201 | case MEGA_MBOXCMD_EXTPTHRU: | |
1202 | mbox64->xfer_segment_lo = mbox->m_out.xferaddr; | |
1203 | mbox64->xfer_segment_hi = 0; | |
1204 | mbox->m_out.xferaddr = 0xFFFFFFFF; | |
1205 | break; | |
1206 | default: | |
1207 | mbox64->xfer_segment_lo = 0; | |
1208 | mbox64->xfer_segment_hi = 0; | |
1209 | } | |
1210 | ||
1211 | if( likely(adapter->flag & BOARD_MEMMAP) ) { | |
1212 | mbox->m_in.poll = 0; | |
1213 | mbox->m_in.ack = 0; | |
1214 | mbox->m_in.numstatus = 0xFF; | |
1215 | mbox->m_in.status = 0xFF; | |
1216 | WRINDOOR(adapter, adapter->mbox_dma | 0x1); | |
1217 | ||
1218 | while((volatile u8)mbox->m_in.numstatus == 0xFF) | |
1219 | cpu_relax(); | |
1220 | ||
1221 | mbox->m_in.numstatus = 0xFF; | |
1222 | ||
1223 | while( (volatile u8)mbox->m_in.poll != 0x77 ) | |
1224 | cpu_relax(); | |
1225 | ||
1226 | mbox->m_in.poll = 0; | |
1227 | mbox->m_in.ack = 0x77; | |
1228 | ||
1229 | WRINDOOR(adapter, adapter->mbox_dma | 0x2); | |
1230 | ||
1231 | while(RDINDOOR(adapter) & 0x2) | |
1232 | cpu_relax(); | |
1233 | } | |
1234 | else { | |
1235 | irq_disable(adapter); | |
1236 | issue_command(adapter); | |
1237 | ||
1238 | while (!((byte = irq_state(adapter)) & INTR_VALID)) | |
1239 | cpu_relax(); | |
1240 | ||
1241 | set_irq_state(adapter, byte); | |
1242 | irq_enable(adapter); | |
1243 | irq_ack(adapter); | |
1244 | } | |
1245 | ||
1246 | return mbox->m_in.status; | |
1247 | ||
1248 | bug_blocked_mailbox: | |
1249 | printk(KERN_WARNING "megaraid: Blocked mailbox......!!\n"); | |
1250 | udelay (1000); | |
1251 | return -1; | |
1252 | } | |
1253 | ||
1254 | ||
1255 | /** | |
1256 | * megaraid_isr_iomapped() | |
1257 | * @irq - irq | |
1258 | * @devp - pointer to our soft state | |
1259 | * @regs - unused | |
1260 | * | |
1261 | * Interrupt service routine for io-mapped controllers. | |
1262 | * Find out if our device is interrupting. If yes, acknowledge the interrupt | |
1263 | * and service the completed commands. | |
1264 | */ | |
1265 | static irqreturn_t | |
1266 | megaraid_isr_iomapped(int irq, void *devp, struct pt_regs *regs) | |
1267 | { | |
1268 | adapter_t *adapter = devp; | |
1269 | unsigned long flags; | |
1270 | u8 status; | |
1271 | u8 nstatus; | |
1272 | u8 completed[MAX_FIRMWARE_STATUS]; | |
1273 | u8 byte; | |
1274 | int handled = 0; | |
1275 | ||
1276 | ||
1277 | /* | |
1278 | * loop till F/W has more commands for us to complete. | |
1279 | */ | |
1280 | spin_lock_irqsave(&adapter->lock, flags); | |
1281 | ||
1282 | do { | |
1283 | /* Check if a valid interrupt is pending */ | |
1284 | byte = irq_state(adapter); | |
1285 | if( (byte & VALID_INTR_BYTE) == 0 ) { | |
1286 | /* | |
1287 | * No more pending commands | |
1288 | */ | |
1289 | goto out_unlock; | |
1290 | } | |
1291 | set_irq_state(adapter, byte); | |
1292 | ||
1293 | while((nstatus = (volatile u8)adapter->mbox->m_in.numstatus) | |
1294 | == 0xFF) | |
1295 | cpu_relax(); | |
1296 | adapter->mbox->m_in.numstatus = 0xFF; | |
1297 | ||
1298 | status = adapter->mbox->m_in.status; | |
1299 | ||
1300 | /* | |
1301 | * decrement the pending queue counter | |
1302 | */ | |
1303 | atomic_sub(nstatus, &adapter->pend_cmds); | |
1304 | ||
1305 | memcpy(completed, (void *)adapter->mbox->m_in.completed, | |
1306 | nstatus); | |
1307 | ||
1308 | /* Acknowledge interrupt */ | |
1309 | irq_ack(adapter); | |
1310 | ||
1311 | mega_cmd_done(adapter, completed, nstatus, status); | |
1312 | ||
1313 | mega_rundoneq(adapter); | |
1314 | ||
1315 | handled = 1; | |
1316 | ||
1317 | /* Loop through any pending requests */ | |
1318 | if(atomic_read(&adapter->quiescent) == 0) { | |
1319 | mega_runpendq(adapter); | |
1320 | } | |
1321 | ||
1322 | } while(1); | |
1323 | ||
1324 | out_unlock: | |
1325 | ||
1326 | spin_unlock_irqrestore(&adapter->lock, flags); | |
1327 | ||
1328 | return IRQ_RETVAL(handled); | |
1329 | } | |
1330 | ||
1331 | ||
1332 | /** | |
1333 | * megaraid_isr_memmapped() | |
1334 | * @irq - irq | |
1335 | * @devp - pointer to our soft state | |
1336 | * @regs - unused | |
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 | |
1343 | megaraid_isr_memmapped(int irq, void *devp, struct pt_regs *regs) | |
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 | ||
1391 | while( RDINDOOR(adapter) & 0x02 ) cpu_relax(); | |
1392 | ||
1393 | mega_cmd_done(adapter, completed, nstatus, status); | |
1394 | ||
1395 | mega_rundoneq(adapter); | |
1396 | ||
1397 | /* Loop through any pending requests */ | |
1398 | if(atomic_read(&adapter->quiescent) == 0) { | |
1399 | mega_runpendq(adapter); | |
1400 | } | |
1401 | ||
1402 | } while(1); | |
1403 | ||
1404 | out_unlock: | |
1405 | ||
1406 | spin_unlock_irqrestore(&adapter->lock, flags); | |
1407 | ||
1408 | return IRQ_RETVAL(handled); | |
1409 | } | |
1410 | /** | |
1411 | * mega_cmd_done() | |
1412 | * @adapter - pointer to our soft state | |
1413 | * @completed - array of ids of completed commands | |
1414 | * @nstatus - number of completed commands | |
1415 | * @status - status of the last command completed | |
1416 | * | |
1417 | * Complete the comamnds and call the scsi mid-layer callback hooks. | |
1418 | */ | |
1419 | static void | |
1420 | mega_cmd_done(adapter_t *adapter, u8 completed[], int nstatus, int status) | |
1421 | { | |
1422 | mega_ext_passthru *epthru = NULL; | |
1423 | struct scatterlist *sgl; | |
1424 | Scsi_Cmnd *cmd = NULL; | |
1425 | mega_passthru *pthru = NULL; | |
1426 | mbox_t *mbox = NULL; | |
1427 | u8 c; | |
1428 | scb_t *scb; | |
1429 | int islogical; | |
1430 | int cmdid; | |
1431 | int i; | |
1432 | ||
1433 | /* | |
1434 | * for all the commands completed, call the mid-layer callback routine | |
1435 | * and free the scb. | |
1436 | */ | |
1437 | for( i = 0; i < nstatus; i++ ) { | |
1438 | ||
1439 | cmdid = completed[i]; | |
1440 | ||
1441 | if( cmdid == CMDID_INT_CMDS ) { /* internal command */ | |
1442 | scb = &adapter->int_scb; | |
1443 | cmd = scb->cmd; | |
1444 | mbox = (mbox_t *)scb->raw_mbox; | |
1445 | ||
1446 | /* | |
1447 | * Internal command interface do not fire the extended | |
1448 | * passthru or 64-bit passthru | |
1449 | */ | |
1450 | pthru = scb->pthru; | |
1451 | ||
1452 | } | |
1453 | else { | |
1454 | scb = &adapter->scb_list[cmdid]; | |
1455 | ||
1456 | /* | |
1457 | * Make sure f/w has completed a valid command | |
1458 | */ | |
1459 | if( !(scb->state & SCB_ISSUED) || scb->cmd == NULL ) { | |
1460 | printk(KERN_CRIT | |
1461 | "megaraid: invalid command "); | |
1462 | printk("Id %d, scb->state:%x, scsi cmd:%p\n", | |
1463 | cmdid, scb->state, scb->cmd); | |
1464 | ||
1465 | continue; | |
1466 | } | |
1467 | ||
1468 | /* | |
1469 | * Was a abort issued for this command | |
1470 | */ | |
1471 | if( scb->state & SCB_ABORT ) { | |
1472 | ||
1473 | printk(KERN_WARNING | |
1474 | "megaraid: aborted cmd %lx[%x] complete.\n", | |
1475 | scb->cmd->serial_number, scb->idx); | |
1476 | ||
1477 | scb->cmd->result = (DID_ABORT << 16); | |
1478 | ||
1479 | list_add_tail(SCSI_LIST(scb->cmd), | |
1480 | &adapter->completed_list); | |
1481 | ||
1482 | mega_free_scb(adapter, scb); | |
1483 | ||
1484 | continue; | |
1485 | } | |
1486 | ||
1487 | /* | |
1488 | * Was a reset issued for this command | |
1489 | */ | |
1490 | if( scb->state & SCB_RESET ) { | |
1491 | ||
1492 | printk(KERN_WARNING | |
1493 | "megaraid: reset cmd %lx[%x] complete.\n", | |
1494 | scb->cmd->serial_number, scb->idx); | |
1495 | ||
1496 | scb->cmd->result = (DID_RESET << 16); | |
1497 | ||
1498 | list_add_tail(SCSI_LIST(scb->cmd), | |
1499 | &adapter->completed_list); | |
1500 | ||
1501 | mega_free_scb (adapter, scb); | |
1502 | ||
1503 | continue; | |
1504 | } | |
1505 | ||
1506 | cmd = scb->cmd; | |
1507 | pthru = scb->pthru; | |
1508 | epthru = scb->epthru; | |
1509 | mbox = (mbox_t *)scb->raw_mbox; | |
1510 | ||
1511 | #if MEGA_HAVE_STATS | |
1512 | { | |
1513 | ||
1514 | int logdrv = mbox->m_out.logdrv; | |
1515 | ||
1516 | islogical = adapter->logdrv_chan[cmd->channel]; | |
1517 | /* | |
1518 | * Maintain an error counter for the logical drive. | |
1519 | * Some application like SNMP agent need such | |
1520 | * statistics | |
1521 | */ | |
1522 | if( status && islogical && (cmd->cmnd[0] == READ_6 || | |
1523 | cmd->cmnd[0] == READ_10 || | |
1524 | cmd->cmnd[0] == READ_12)) { | |
1525 | /* | |
1526 | * Logical drive number increases by 0x80 when | |
1527 | * a logical drive is deleted | |
1528 | */ | |
1529 | adapter->rd_errors[logdrv%0x80]++; | |
1530 | } | |
1531 | ||
1532 | if( status && islogical && (cmd->cmnd[0] == WRITE_6 || | |
1533 | cmd->cmnd[0] == WRITE_10 || | |
1534 | cmd->cmnd[0] == WRITE_12)) { | |
1535 | /* | |
1536 | * Logical drive number increases by 0x80 when | |
1537 | * a logical drive is deleted | |
1538 | */ | |
1539 | adapter->wr_errors[logdrv%0x80]++; | |
1540 | } | |
1541 | ||
1542 | } | |
1543 | #endif | |
1544 | } | |
1545 | ||
1546 | /* | |
1547 | * Do not return the presence of hard disk on the channel so, | |
1548 | * inquiry sent, and returned data==hard disk or removable | |
1549 | * hard disk and not logical, request should return failure! - | |
1550 | * PJ | |
1551 | */ | |
1552 | islogical = adapter->logdrv_chan[cmd->device->channel]; | |
1553 | if( cmd->cmnd[0] == INQUIRY && !islogical ) { | |
1554 | ||
1555 | if( cmd->use_sg ) { | |
1556 | sgl = (struct scatterlist *) | |
1557 | cmd->request_buffer; | |
1558 | ||
1559 | if( sgl->page ) { | |
1560 | c = *(unsigned char *) | |
1561 | page_address((&sgl[0])->page) + | |
1562 | (&sgl[0])->offset; | |
1563 | } | |
1564 | else { | |
1565 | printk(KERN_WARNING | |
1566 | "megaraid: invalid sg.\n"); | |
1567 | c = 0; | |
1568 | } | |
1569 | } | |
1570 | else { | |
1571 | c = *(u8 *)cmd->request_buffer; | |
1572 | } | |
1573 | ||
1574 | if(IS_RAID_CH(adapter, cmd->device->channel) && | |
1575 | ((c & 0x1F ) == TYPE_DISK)) { | |
1576 | status = 0xF0; | |
1577 | } | |
1578 | } | |
1579 | ||
1580 | /* clear result; otherwise, success returns corrupt value */ | |
1581 | cmd->result = 0; | |
1582 | ||
1583 | /* Convert MegaRAID status to Linux error code */ | |
1584 | switch (status) { | |
1585 | case 0x00: /* SUCCESS , i.e. SCSI_STATUS_GOOD */ | |
1586 | cmd->result |= (DID_OK << 16); | |
1587 | break; | |
1588 | ||
1589 | case 0x02: /* ERROR_ABORTED, i.e. | |
1590 | SCSI_STATUS_CHECK_CONDITION */ | |
1591 | ||
1592 | /* set sense_buffer and result fields */ | |
1593 | if( mbox->m_out.cmd == MEGA_MBOXCMD_PASSTHRU || | |
1594 | mbox->m_out.cmd == MEGA_MBOXCMD_PASSTHRU64 ) { | |
1595 | ||
1596 | memcpy(cmd->sense_buffer, pthru->reqsensearea, | |
1597 | 14); | |
1598 | ||
1599 | cmd->result = (DRIVER_SENSE << 24) | | |
1600 | (DID_OK << 16) | | |
1601 | (CHECK_CONDITION << 1); | |
1602 | } | |
1603 | else { | |
1604 | if (mbox->m_out.cmd == MEGA_MBOXCMD_EXTPTHRU) { | |
1605 | ||
1606 | memcpy(cmd->sense_buffer, | |
1607 | epthru->reqsensearea, 14); | |
1608 | ||
1609 | cmd->result = (DRIVER_SENSE << 24) | | |
1610 | (DID_OK << 16) | | |
1611 | (CHECK_CONDITION << 1); | |
1612 | } else { | |
1613 | cmd->sense_buffer[0] = 0x70; | |
1614 | cmd->sense_buffer[2] = ABORTED_COMMAND; | |
1615 | cmd->result |= (CHECK_CONDITION << 1); | |
1616 | } | |
1617 | } | |
1618 | break; | |
1619 | ||
1620 | case 0x08: /* ERR_DEST_DRIVE_FAILED, i.e. | |
1621 | SCSI_STATUS_BUSY */ | |
1622 | cmd->result |= (DID_BUS_BUSY << 16) | status; | |
1623 | break; | |
1624 | ||
1625 | default: | |
1626 | #if MEGA_HAVE_CLUSTERING | |
1627 | /* | |
1628 | * If TEST_UNIT_READY fails, we know | |
1629 | * MEGA_RESERVATION_STATUS failed | |
1630 | */ | |
1631 | if( cmd->cmnd[0] == TEST_UNIT_READY ) { | |
1632 | cmd->result |= (DID_ERROR << 16) | | |
1633 | (RESERVATION_CONFLICT << 1); | |
1634 | } | |
1635 | else | |
1636 | /* | |
1637 | * Error code returned is 1 if Reserve or Release | |
1638 | * failed or the input parameter is invalid | |
1639 | */ | |
1640 | if( status == 1 && | |
1641 | (cmd->cmnd[0] == RESERVE || | |
1642 | cmd->cmnd[0] == RELEASE) ) { | |
1643 | ||
1644 | cmd->result |= (DID_ERROR << 16) | | |
1645 | (RESERVATION_CONFLICT << 1); | |
1646 | } | |
1647 | else | |
1648 | #endif | |
1649 | cmd->result |= (DID_BAD_TARGET << 16)|status; | |
1650 | } | |
1651 | ||
1652 | /* | |
1653 | * Only free SCBs for the commands coming down from the | |
1654 | * mid-layer, not for which were issued internally | |
1655 | * | |
1656 | * For internal command, restore the status returned by the | |
1657 | * firmware so that user can interpret it. | |
1658 | */ | |
1659 | if( cmdid == CMDID_INT_CMDS ) { /* internal command */ | |
1660 | cmd->result = status; | |
1661 | ||
1662 | /* | |
1663 | * Remove the internal command from the pending list | |
1664 | */ | |
1665 | list_del_init(&scb->list); | |
1666 | scb->state = SCB_FREE; | |
1667 | } | |
1668 | else { | |
1669 | mega_free_scb(adapter, scb); | |
1670 | } | |
1671 | ||
1672 | /* Add Scsi_Command to end of completed queue */ | |
1673 | list_add_tail(SCSI_LIST(cmd), &adapter->completed_list); | |
1674 | } | |
1675 | } | |
1676 | ||
1677 | ||
1678 | /* | |
1679 | * mega_runpendq() | |
1680 | * | |
1681 | * Run through the list of completed requests and finish it | |
1682 | */ | |
1683 | static void | |
1684 | mega_rundoneq (adapter_t *adapter) | |
1685 | { | |
1686 | Scsi_Cmnd *cmd; | |
1687 | struct list_head *pos; | |
1688 | ||
1689 | list_for_each(pos, &adapter->completed_list) { | |
1690 | ||
0a04137e | 1691 | struct scsi_pointer* spos = (struct scsi_pointer *)pos; |
1da177e4 LT |
1692 | |
1693 | cmd = list_entry(spos, Scsi_Cmnd, SCp); | |
1694 | cmd->scsi_done(cmd); | |
1695 | } | |
1696 | ||
1697 | INIT_LIST_HEAD(&adapter->completed_list); | |
1698 | } | |
1699 | ||
1700 | ||
1701 | /* | |
1702 | * Free a SCB structure | |
1703 | * Note: We assume the scsi commands associated with this scb is not free yet. | |
1704 | */ | |
1705 | static void | |
1706 | mega_free_scb(adapter_t *adapter, scb_t *scb) | |
1707 | { | |
51c928c3 JB |
1708 | unsigned long length; |
1709 | ||
1da177e4 LT |
1710 | switch( scb->dma_type ) { |
1711 | ||
1712 | case MEGA_DMA_TYPE_NONE: | |
1713 | break; | |
1714 | ||
1715 | case MEGA_BULK_DATA: | |
51c928c3 JB |
1716 | if (scb->cmd->use_sg == 0) |
1717 | length = scb->cmd->request_bufflen; | |
1718 | else { | |
1719 | struct scatterlist *sgl = | |
1720 | (struct scatterlist *)scb->cmd->request_buffer; | |
1721 | length = sgl->length; | |
1722 | } | |
1da177e4 | 1723 | pci_unmap_page(adapter->dev, scb->dma_h_bulkdata, |
51c928c3 | 1724 | length, scb->dma_direction); |
1da177e4 LT |
1725 | break; |
1726 | ||
1727 | case MEGA_SGLIST: | |
1728 | pci_unmap_sg(adapter->dev, scb->cmd->request_buffer, | |
1729 | scb->cmd->use_sg, scb->dma_direction); | |
1730 | break; | |
1731 | ||
1732 | default: | |
1733 | break; | |
1734 | } | |
1735 | ||
1736 | /* | |
1737 | * Remove from the pending list | |
1738 | */ | |
1739 | list_del_init(&scb->list); | |
1740 | ||
1741 | /* Link the scb back into free list */ | |
1742 | scb->state = SCB_FREE; | |
1743 | scb->cmd = NULL; | |
1744 | ||
1745 | list_add(&scb->list, &adapter->free_list); | |
1746 | } | |
1747 | ||
1748 | ||
1749 | static int | |
1750 | __mega_busywait_mbox (adapter_t *adapter) | |
1751 | { | |
1752 | volatile mbox_t *mbox = adapter->mbox; | |
1753 | long counter; | |
1754 | ||
1755 | for (counter = 0; counter < 10000; counter++) { | |
1756 | if (!mbox->m_in.busy) | |
1757 | return 0; | |
1758 | udelay(100); yield(); | |
1759 | } | |
1760 | return -1; /* give up after 1 second */ | |
1761 | } | |
1762 | ||
1763 | /* | |
1764 | * Copies data to SGLIST | |
1765 | * Note: For 64 bit cards, we need a minimum of one SG element for read/write | |
1766 | */ | |
1767 | static int | |
1768 | mega_build_sglist(adapter_t *adapter, scb_t *scb, u32 *buf, u32 *len) | |
1769 | { | |
1770 | struct scatterlist *sgl; | |
1771 | struct page *page; | |
1772 | unsigned long offset; | |
51c928c3 | 1773 | unsigned int length; |
1da177e4 LT |
1774 | Scsi_Cmnd *cmd; |
1775 | int sgcnt; | |
1776 | int idx; | |
1777 | ||
1778 | cmd = scb->cmd; | |
1779 | ||
1780 | /* Scatter-gather not used */ | |
51c928c3 JB |
1781 | if( cmd->use_sg == 0 || (cmd->use_sg == 1 && |
1782 | !adapter->has_64bit_addr)) { | |
1783 | ||
1784 | if (cmd->use_sg == 0) { | |
1785 | page = virt_to_page(cmd->request_buffer); | |
1786 | offset = offset_in_page(cmd->request_buffer); | |
1787 | length = cmd->request_bufflen; | |
1788 | } else { | |
1789 | sgl = (struct scatterlist *)cmd->request_buffer; | |
1790 | page = sgl->page; | |
1791 | offset = sgl->offset; | |
1792 | length = sgl->length; | |
1793 | } | |
1da177e4 LT |
1794 | |
1795 | scb->dma_h_bulkdata = pci_map_page(adapter->dev, | |
1796 | page, offset, | |
51c928c3 | 1797 | length, |
1da177e4 LT |
1798 | scb->dma_direction); |
1799 | scb->dma_type = MEGA_BULK_DATA; | |
1800 | ||
1801 | /* | |
1802 | * We need to handle special 64-bit commands that need a | |
1803 | * minimum of 1 SG | |
1804 | */ | |
1805 | if( adapter->has_64bit_addr ) { | |
1806 | scb->sgl64[0].address = scb->dma_h_bulkdata; | |
51c928c3 | 1807 | scb->sgl64[0].length = length; |
1da177e4 | 1808 | *buf = (u32)scb->sgl_dma_addr; |
51c928c3 | 1809 | *len = (u32)length; |
1da177e4 LT |
1810 | return 1; |
1811 | } | |
1812 | else { | |
1813 | *buf = (u32)scb->dma_h_bulkdata; | |
51c928c3 | 1814 | *len = (u32)length; |
1da177e4 LT |
1815 | } |
1816 | return 0; | |
1817 | } | |
1818 | ||
1819 | sgl = (struct scatterlist *)cmd->request_buffer; | |
1820 | ||
1821 | /* | |
1822 | * Copy Scatter-Gather list info into controller structure. | |
1823 | * | |
1824 | * The number of sg elements returned must not exceed our limit | |
1825 | */ | |
1826 | sgcnt = pci_map_sg(adapter->dev, sgl, cmd->use_sg, | |
1827 | scb->dma_direction); | |
1828 | ||
1829 | scb->dma_type = MEGA_SGLIST; | |
1830 | ||
125e1874 | 1831 | BUG_ON(sgcnt > adapter->sglen); |
1da177e4 | 1832 | |
51c928c3 JB |
1833 | *len = 0; |
1834 | ||
1da177e4 LT |
1835 | for( idx = 0; idx < sgcnt; idx++, sgl++ ) { |
1836 | ||
1837 | if( adapter->has_64bit_addr ) { | |
1838 | scb->sgl64[idx].address = sg_dma_address(sgl); | |
51c928c3 | 1839 | *len += scb->sgl64[idx].length = sg_dma_len(sgl); |
1da177e4 LT |
1840 | } |
1841 | else { | |
1842 | scb->sgl[idx].address = sg_dma_address(sgl); | |
51c928c3 | 1843 | *len += scb->sgl[idx].length = sg_dma_len(sgl); |
1da177e4 LT |
1844 | } |
1845 | } | |
1846 | ||
1847 | /* Reset pointer and length fields */ | |
1848 | *buf = scb->sgl_dma_addr; | |
1849 | ||
1da177e4 LT |
1850 | /* Return count of SG requests */ |
1851 | return sgcnt; | |
1852 | } | |
1853 | ||
1854 | ||
1855 | /* | |
1856 | * mega_8_to_40ld() | |
1857 | * | |
1858 | * takes all info in AdapterInquiry structure and puts it into ProductInfo and | |
1859 | * Enquiry3 structures for later use | |
1860 | */ | |
1861 | static void | |
1862 | mega_8_to_40ld(mraid_inquiry *inquiry, mega_inquiry3 *enquiry3, | |
1863 | mega_product_info *product_info) | |
1864 | { | |
1865 | int i; | |
1866 | ||
1867 | product_info->max_commands = inquiry->adapter_info.max_commands; | |
1868 | enquiry3->rebuild_rate = inquiry->adapter_info.rebuild_rate; | |
1869 | product_info->nchannels = inquiry->adapter_info.nchannels; | |
1870 | ||
1871 | for (i = 0; i < 4; i++) { | |
1872 | product_info->fw_version[i] = | |
1873 | inquiry->adapter_info.fw_version[i]; | |
1874 | ||
1875 | product_info->bios_version[i] = | |
1876 | inquiry->adapter_info.bios_version[i]; | |
1877 | } | |
1878 | enquiry3->cache_flush_interval = | |
1879 | inquiry->adapter_info.cache_flush_interval; | |
1880 | ||
1881 | product_info->dram_size = inquiry->adapter_info.dram_size; | |
1882 | ||
1883 | enquiry3->num_ldrv = inquiry->logdrv_info.num_ldrv; | |
1884 | ||
1885 | for (i = 0; i < MAX_LOGICAL_DRIVES_8LD; i++) { | |
1886 | enquiry3->ldrv_size[i] = inquiry->logdrv_info.ldrv_size[i]; | |
1887 | enquiry3->ldrv_prop[i] = inquiry->logdrv_info.ldrv_prop[i]; | |
1888 | enquiry3->ldrv_state[i] = inquiry->logdrv_info.ldrv_state[i]; | |
1889 | } | |
1890 | ||
1891 | for (i = 0; i < (MAX_PHYSICAL_DRIVES); i++) | |
1892 | enquiry3->pdrv_state[i] = inquiry->pdrv_info.pdrv_state[i]; | |
1893 | } | |
1894 | ||
1895 | static inline void | |
1896 | mega_free_sgl(adapter_t *adapter) | |
1897 | { | |
1898 | scb_t *scb; | |
1899 | int i; | |
1900 | ||
1901 | for(i = 0; i < adapter->max_cmds; i++) { | |
1902 | ||
1903 | scb = &adapter->scb_list[i]; | |
1904 | ||
1905 | if( scb->sgl64 ) { | |
1906 | pci_free_consistent(adapter->dev, | |
1907 | sizeof(mega_sgl64) * adapter->sglen, | |
1908 | scb->sgl64, | |
1909 | scb->sgl_dma_addr); | |
1910 | ||
1911 | scb->sgl64 = NULL; | |
1912 | } | |
1913 | ||
1914 | if( scb->pthru ) { | |
1915 | pci_free_consistent(adapter->dev, sizeof(mega_passthru), | |
1916 | scb->pthru, scb->pthru_dma_addr); | |
1917 | ||
1918 | scb->pthru = NULL; | |
1919 | } | |
1920 | ||
1921 | if( scb->epthru ) { | |
1922 | pci_free_consistent(adapter->dev, | |
1923 | sizeof(mega_ext_passthru), | |
1924 | scb->epthru, scb->epthru_dma_addr); | |
1925 | ||
1926 | scb->epthru = NULL; | |
1927 | } | |
1928 | ||
1929 | } | |
1930 | } | |
1931 | ||
1932 | ||
1933 | /* | |
1934 | * Get information about the card/driver | |
1935 | */ | |
1936 | const char * | |
1937 | megaraid_info(struct Scsi_Host *host) | |
1938 | { | |
1939 | static char buffer[512]; | |
1940 | adapter_t *adapter; | |
1941 | ||
1942 | adapter = (adapter_t *)host->hostdata; | |
1943 | ||
1944 | sprintf (buffer, | |
1945 | "LSI Logic MegaRAID %s %d commands %d targs %d chans %d luns", | |
1946 | adapter->fw_version, adapter->product_info.max_commands, | |
1947 | adapter->host->max_id, adapter->host->max_channel, | |
1948 | adapter->host->max_lun); | |
1949 | return buffer; | |
1950 | } | |
1951 | ||
1952 | /* | |
1953 | * Abort a previous SCSI request. Only commands on the pending list can be | |
1954 | * aborted. All the commands issued to the F/W must complete. | |
1955 | */ | |
1956 | static int | |
1957 | megaraid_abort(Scsi_Cmnd *cmd) | |
1958 | { | |
1959 | adapter_t *adapter; | |
1960 | int rval; | |
1961 | ||
1962 | adapter = (adapter_t *)cmd->device->host->hostdata; | |
1963 | ||
1964 | rval = megaraid_abort_and_reset(adapter, cmd, SCB_ABORT); | |
1965 | ||
1966 | /* | |
1967 | * This is required here to complete any completed requests | |
1968 | * to be communicated over to the mid layer. | |
1969 | */ | |
1970 | mega_rundoneq(adapter); | |
1971 | ||
1972 | return rval; | |
1973 | } | |
1974 | ||
1975 | ||
1976 | static int | |
fa4c4966 | 1977 | megaraid_reset(struct scsi_cmnd *cmd) |
1da177e4 LT |
1978 | { |
1979 | adapter_t *adapter; | |
1980 | megacmd_t mc; | |
1981 | int rval; | |
1982 | ||
1983 | adapter = (adapter_t *)cmd->device->host->hostdata; | |
1984 | ||
1985 | #if MEGA_HAVE_CLUSTERING | |
1986 | mc.cmd = MEGA_CLUSTER_CMD; | |
1987 | mc.opcode = MEGA_RESET_RESERVATIONS; | |
1988 | ||
cb0258a2 | 1989 | if( mega_internal_command(adapter, &mc, NULL) != 0 ) { |
1da177e4 LT |
1990 | printk(KERN_WARNING |
1991 | "megaraid: reservation reset failed.\n"); | |
1992 | } | |
1993 | else { | |
1994 | printk(KERN_INFO "megaraid: reservation reset.\n"); | |
1995 | } | |
1da177e4 LT |
1996 | #endif |
1997 | ||
fa4c4966 JB |
1998 | spin_lock_irq(&adapter->lock); |
1999 | ||
1da177e4 LT |
2000 | rval = megaraid_abort_and_reset(adapter, cmd, SCB_RESET); |
2001 | ||
2002 | /* | |
2003 | * This is required here to complete any completed requests | |
2004 | * to be communicated over to the mid layer. | |
2005 | */ | |
2006 | mega_rundoneq(adapter); | |
94d0e7b8 JG |
2007 | spin_unlock_irq(&adapter->lock); |
2008 | ||
fa4c4966 | 2009 | return rval; |
94d0e7b8 | 2010 | } |
1da177e4 | 2011 | |
1da177e4 LT |
2012 | /** |
2013 | * megaraid_abort_and_reset() | |
2014 | * @adapter - megaraid soft state | |
2015 | * @cmd - scsi command to be aborted or reset | |
2016 | * @aor - abort or reset flag | |
2017 | * | |
2018 | * Try to locate the scsi command in the pending queue. If found and is not | |
2019 | * issued to the controller, abort/reset it. Otherwise return failure | |
2020 | */ | |
2021 | static int | |
2022 | megaraid_abort_and_reset(adapter_t *adapter, Scsi_Cmnd *cmd, int aor) | |
2023 | { | |
2024 | struct list_head *pos, *next; | |
2025 | scb_t *scb; | |
2026 | ||
2027 | printk(KERN_WARNING "megaraid: %s-%lx cmd=%x <c=%d t=%d l=%d>\n", | |
2028 | (aor == SCB_ABORT)? "ABORTING":"RESET", cmd->serial_number, | |
2029 | cmd->cmnd[0], cmd->device->channel, | |
2030 | cmd->device->id, cmd->device->lun); | |
2031 | ||
2032 | if(list_empty(&adapter->pending_list)) | |
2033 | return FALSE; | |
2034 | ||
2035 | list_for_each_safe(pos, next, &adapter->pending_list) { | |
2036 | ||
2037 | scb = list_entry(pos, scb_t, list); | |
2038 | ||
2039 | if (scb->cmd == cmd) { /* Found command */ | |
2040 | ||
2041 | scb->state |= aor; | |
2042 | ||
2043 | /* | |
2044 | * Check if this command has firmare owenership. If | |
2045 | * yes, we cannot reset this command. Whenever, f/w | |
2046 | * completes this command, we will return appropriate | |
2047 | * status from ISR. | |
2048 | */ | |
2049 | if( scb->state & SCB_ISSUED ) { | |
2050 | ||
2051 | printk(KERN_WARNING | |
2052 | "megaraid: %s-%lx[%x], fw owner.\n", | |
2053 | (aor==SCB_ABORT) ? "ABORTING":"RESET", | |
2054 | cmd->serial_number, scb->idx); | |
2055 | ||
2056 | return FALSE; | |
2057 | } | |
2058 | else { | |
2059 | ||
2060 | /* | |
2061 | * Not yet issued! Remove from the pending | |
2062 | * list | |
2063 | */ | |
2064 | printk(KERN_WARNING | |
2065 | "megaraid: %s-%lx[%x], driver owner.\n", | |
2066 | (aor==SCB_ABORT) ? "ABORTING":"RESET", | |
2067 | cmd->serial_number, scb->idx); | |
2068 | ||
2069 | mega_free_scb(adapter, scb); | |
2070 | ||
2071 | if( aor == SCB_ABORT ) { | |
2072 | cmd->result = (DID_ABORT << 16); | |
2073 | } | |
2074 | else { | |
2075 | cmd->result = (DID_RESET << 16); | |
2076 | } | |
2077 | ||
2078 | list_add_tail(SCSI_LIST(cmd), | |
2079 | &adapter->completed_list); | |
2080 | ||
2081 | return TRUE; | |
2082 | } | |
2083 | } | |
2084 | } | |
2085 | ||
2086 | return FALSE; | |
2087 | } | |
2088 | ||
2089 | static inline int | |
2090 | make_local_pdev(adapter_t *adapter, struct pci_dev **pdev) | |
2091 | { | |
2092 | *pdev = kmalloc(sizeof(struct pci_dev), GFP_KERNEL); | |
2093 | ||
2094 | if( *pdev == NULL ) return -1; | |
2095 | ||
2096 | memcpy(*pdev, adapter->dev, sizeof(struct pci_dev)); | |
2097 | ||
910638ae | 2098 | if( pci_set_dma_mask(*pdev, DMA_32BIT_MASK) != 0 ) { |
1da177e4 LT |
2099 | kfree(*pdev); |
2100 | return -1; | |
2101 | } | |
2102 | ||
2103 | return 0; | |
2104 | } | |
2105 | ||
2106 | static inline void | |
2107 | free_local_pdev(struct pci_dev *pdev) | |
2108 | { | |
2109 | kfree(pdev); | |
2110 | } | |
2111 | ||
2112 | /** | |
2113 | * mega_allocate_inquiry() | |
2114 | * @dma_handle - handle returned for dma address | |
2115 | * @pdev - handle to pci device | |
2116 | * | |
2117 | * allocates memory for inquiry structure | |
2118 | */ | |
2119 | static inline void * | |
2120 | mega_allocate_inquiry(dma_addr_t *dma_handle, struct pci_dev *pdev) | |
2121 | { | |
2122 | return pci_alloc_consistent(pdev, sizeof(mega_inquiry3), dma_handle); | |
2123 | } | |
2124 | ||
2125 | ||
2126 | static inline void | |
2127 | mega_free_inquiry(void *inquiry, dma_addr_t dma_handle, struct pci_dev *pdev) | |
2128 | { | |
2129 | pci_free_consistent(pdev, sizeof(mega_inquiry3), inquiry, dma_handle); | |
2130 | } | |
2131 | ||
2132 | ||
2133 | #ifdef CONFIG_PROC_FS | |
2134 | /* Following code handles /proc fs */ | |
2135 | ||
2136 | #define CREATE_READ_PROC(string, func) create_proc_read_entry(string, \ | |
2137 | S_IRUSR | S_IFREG, \ | |
2138 | controller_proc_dir_entry, \ | |
2139 | func, adapter) | |
2140 | ||
2141 | /** | |
2142 | * mega_create_proc_entry() | |
2143 | * @index - index in soft state array | |
2144 | * @parent - parent node for this /proc entry | |
2145 | * | |
2146 | * Creates /proc entries for our controllers. | |
2147 | */ | |
2148 | static void | |
2149 | mega_create_proc_entry(int index, struct proc_dir_entry *parent) | |
2150 | { | |
2151 | struct proc_dir_entry *controller_proc_dir_entry = NULL; | |
2152 | u8 string[64] = { 0 }; | |
2153 | adapter_t *adapter = hba_soft_state[index]; | |
2154 | ||
2155 | sprintf(string, "hba%d", adapter->host->host_no); | |
2156 | ||
2157 | controller_proc_dir_entry = | |
2158 | adapter->controller_proc_dir_entry = proc_mkdir(string, parent); | |
2159 | ||
2160 | if(!controller_proc_dir_entry) { | |
2161 | printk(KERN_WARNING "\nmegaraid: proc_mkdir failed\n"); | |
2162 | return; | |
2163 | } | |
2164 | adapter->proc_read = CREATE_READ_PROC("config", proc_read_config); | |
2165 | adapter->proc_stat = CREATE_READ_PROC("stat", proc_read_stat); | |
2166 | adapter->proc_mbox = CREATE_READ_PROC("mailbox", proc_read_mbox); | |
2167 | #if MEGA_HAVE_ENH_PROC | |
2168 | adapter->proc_rr = CREATE_READ_PROC("rebuild-rate", proc_rebuild_rate); | |
2169 | adapter->proc_battery = CREATE_READ_PROC("battery-status", | |
2170 | proc_battery); | |
2171 | ||
2172 | /* | |
2173 | * Display each physical drive on its channel | |
2174 | */ | |
2175 | adapter->proc_pdrvstat[0] = CREATE_READ_PROC("diskdrives-ch0", | |
2176 | proc_pdrv_ch0); | |
2177 | adapter->proc_pdrvstat[1] = CREATE_READ_PROC("diskdrives-ch1", | |
2178 | proc_pdrv_ch1); | |
2179 | adapter->proc_pdrvstat[2] = CREATE_READ_PROC("diskdrives-ch2", | |
2180 | proc_pdrv_ch2); | |
2181 | adapter->proc_pdrvstat[3] = CREATE_READ_PROC("diskdrives-ch3", | |
2182 | proc_pdrv_ch3); | |
2183 | ||
2184 | /* | |
2185 | * Display a set of up to 10 logical drive through each of following | |
2186 | * /proc entries | |
2187 | */ | |
2188 | adapter->proc_rdrvstat[0] = CREATE_READ_PROC("raiddrives-0-9", | |
2189 | proc_rdrv_10); | |
2190 | adapter->proc_rdrvstat[1] = CREATE_READ_PROC("raiddrives-10-19", | |
2191 | proc_rdrv_20); | |
2192 | adapter->proc_rdrvstat[2] = CREATE_READ_PROC("raiddrives-20-29", | |
2193 | proc_rdrv_30); | |
2194 | adapter->proc_rdrvstat[3] = CREATE_READ_PROC("raiddrives-30-39", | |
2195 | proc_rdrv_40); | |
2196 | #endif | |
2197 | } | |
2198 | ||
2199 | ||
2200 | /** | |
2201 | * proc_read_config() | |
2202 | * @page - buffer to write the data in | |
2203 | * @start - where the actual data has been written in page | |
2204 | * @offset - same meaning as the read system call | |
2205 | * @count - same meaning as the read system call | |
2206 | * @eof - set if no more data needs to be returned | |
2207 | * @data - pointer to our soft state | |
2208 | * | |
2209 | * Display configuration information about the controller. | |
2210 | */ | |
2211 | static int | |
2212 | proc_read_config(char *page, char **start, off_t offset, int count, int *eof, | |
2213 | void *data) | |
2214 | { | |
2215 | ||
2216 | adapter_t *adapter = (adapter_t *)data; | |
2217 | int len = 0; | |
2218 | ||
2219 | len += sprintf(page+len, "%s", MEGARAID_VERSION); | |
2220 | ||
2221 | if(adapter->product_info.product_name[0]) | |
2222 | len += sprintf(page+len, "%s\n", | |
2223 | adapter->product_info.product_name); | |
2224 | ||
2225 | len += sprintf(page+len, "Controller Type: "); | |
2226 | ||
2227 | if( adapter->flag & BOARD_MEMMAP ) { | |
2228 | len += sprintf(page+len, | |
2229 | "438/466/467/471/493/518/520/531/532\n"); | |
2230 | } | |
2231 | else { | |
2232 | len += sprintf(page+len, | |
2233 | "418/428/434\n"); | |
2234 | } | |
2235 | ||
2236 | if(adapter->flag & BOARD_40LD) { | |
2237 | len += sprintf(page+len, | |
2238 | "Controller Supports 40 Logical Drives\n"); | |
2239 | } | |
2240 | ||
2241 | if(adapter->flag & BOARD_64BIT) { | |
2242 | len += sprintf(page+len, | |
2243 | "Controller capable of 64-bit memory addressing\n"); | |
2244 | } | |
2245 | if( adapter->has_64bit_addr ) { | |
2246 | len += sprintf(page+len, | |
2247 | "Controller using 64-bit memory addressing\n"); | |
2248 | } | |
2249 | else { | |
2250 | len += sprintf(page+len, | |
2251 | "Controller is not using 64-bit memory addressing\n"); | |
2252 | } | |
2253 | ||
2254 | len += sprintf(page+len, "Base = %08lx, Irq = %d, ", adapter->base, | |
2255 | adapter->host->irq); | |
2256 | ||
2257 | len += sprintf(page+len, "Logical Drives = %d, Channels = %d\n", | |
2258 | adapter->numldrv, adapter->product_info.nchannels); | |
2259 | ||
2260 | len += sprintf(page+len, "Version =%s:%s, DRAM = %dMb\n", | |
2261 | adapter->fw_version, adapter->bios_version, | |
2262 | adapter->product_info.dram_size); | |
2263 | ||
2264 | len += sprintf(page+len, | |
2265 | "Controller Queue Depth = %d, Driver Queue Depth = %d\n", | |
2266 | adapter->product_info.max_commands, adapter->max_cmds); | |
2267 | ||
2268 | len += sprintf(page+len, "support_ext_cdb = %d\n", | |
2269 | adapter->support_ext_cdb); | |
2270 | len += sprintf(page+len, "support_random_del = %d\n", | |
2271 | adapter->support_random_del); | |
2272 | len += sprintf(page+len, "boot_ldrv_enabled = %d\n", | |
2273 | adapter->boot_ldrv_enabled); | |
2274 | len += sprintf(page+len, "boot_ldrv = %d\n", | |
2275 | adapter->boot_ldrv); | |
2276 | len += sprintf(page+len, "boot_pdrv_enabled = %d\n", | |
2277 | adapter->boot_pdrv_enabled); | |
2278 | len += sprintf(page+len, "boot_pdrv_ch = %d\n", | |
2279 | adapter->boot_pdrv_ch); | |
2280 | len += sprintf(page+len, "boot_pdrv_tgt = %d\n", | |
2281 | adapter->boot_pdrv_tgt); | |
2282 | len += sprintf(page+len, "quiescent = %d\n", | |
2283 | atomic_read(&adapter->quiescent)); | |
2284 | len += sprintf(page+len, "has_cluster = %d\n", | |
2285 | adapter->has_cluster); | |
2286 | ||
2287 | len += sprintf(page+len, "\nModule Parameters:\n"); | |
2288 | len += sprintf(page+len, "max_cmd_per_lun = %d\n", | |
2289 | max_cmd_per_lun); | |
2290 | len += sprintf(page+len, "max_sectors_per_io = %d\n", | |
2291 | max_sectors_per_io); | |
2292 | ||
2293 | *eof = 1; | |
2294 | ||
2295 | return len; | |
2296 | } | |
2297 | ||
2298 | ||
2299 | ||
2300 | /** | |
2301 | * proc_read_stat() | |
2302 | * @page - buffer to write the data in | |
2303 | * @start - where the actual data has been written in page | |
2304 | * @offset - same meaning as the read system call | |
2305 | * @count - same meaning as the read system call | |
2306 | * @eof - set if no more data needs to be returned | |
2307 | * @data - pointer to our soft state | |
2308 | * | |
2309 | * Diaplay statistical information about the I/O activity. | |
2310 | */ | |
2311 | static int | |
2312 | proc_read_stat(char *page, char **start, off_t offset, int count, int *eof, | |
2313 | void *data) | |
2314 | { | |
2315 | adapter_t *adapter; | |
2316 | int len; | |
2317 | int i; | |
2318 | ||
2319 | i = 0; /* avoid compilation warnings */ | |
2320 | len = 0; | |
2321 | adapter = (adapter_t *)data; | |
2322 | ||
2323 | len = sprintf(page, "Statistical Information for this controller\n"); | |
2324 | len += sprintf(page+len, "pend_cmds = %d\n", | |
2325 | atomic_read(&adapter->pend_cmds)); | |
2326 | #if MEGA_HAVE_STATS | |
2327 | for(i = 0; i < adapter->numldrv; i++) { | |
2328 | len += sprintf(page+len, "Logical Drive %d:\n", i); | |
2329 | ||
2330 | len += sprintf(page+len, | |
2331 | "\tReads Issued = %lu, Writes Issued = %lu\n", | |
2332 | adapter->nreads[i], adapter->nwrites[i]); | |
2333 | ||
2334 | len += sprintf(page+len, | |
2335 | "\tSectors Read = %lu, Sectors Written = %lu\n", | |
2336 | adapter->nreadblocks[i], adapter->nwriteblocks[i]); | |
2337 | ||
2338 | len += sprintf(page+len, | |
2339 | "\tRead errors = %lu, Write errors = %lu\n\n", | |
2340 | adapter->rd_errors[i], adapter->wr_errors[i]); | |
2341 | } | |
2342 | #else | |
2343 | len += sprintf(page+len, | |
2344 | "IO and error counters not compiled in driver.\n"); | |
2345 | #endif | |
2346 | ||
2347 | *eof = 1; | |
2348 | ||
2349 | return len; | |
2350 | } | |
2351 | ||
2352 | ||
2353 | /** | |
2354 | * proc_read_mbox() | |
2355 | * @page - buffer to write the data in | |
2356 | * @start - where the actual data has been written in page | |
2357 | * @offset - same meaning as the read system call | |
2358 | * @count - same meaning as the read system call | |
2359 | * @eof - set if no more data needs to be returned | |
2360 | * @data - pointer to our soft state | |
2361 | * | |
2362 | * Display mailbox information for the last command issued. This information | |
2363 | * is good for debugging. | |
2364 | */ | |
2365 | static int | |
2366 | proc_read_mbox(char *page, char **start, off_t offset, int count, int *eof, | |
2367 | void *data) | |
2368 | { | |
2369 | ||
2370 | adapter_t *adapter = (adapter_t *)data; | |
2371 | volatile mbox_t *mbox = adapter->mbox; | |
2372 | int len = 0; | |
2373 | ||
2374 | len = sprintf(page, "Contents of Mail Box Structure\n"); | |
2375 | len += sprintf(page+len, " Fw Command = 0x%02x\n", | |
2376 | mbox->m_out.cmd); | |
2377 | len += sprintf(page+len, " Cmd Sequence = 0x%02x\n", | |
2378 | mbox->m_out.cmdid); | |
2379 | len += sprintf(page+len, " No of Sectors= %04d\n", | |
2380 | mbox->m_out.numsectors); | |
2381 | len += sprintf(page+len, " LBA = 0x%02x\n", | |
2382 | mbox->m_out.lba); | |
2383 | len += sprintf(page+len, " DTA = 0x%08x\n", | |
2384 | mbox->m_out.xferaddr); | |
2385 | len += sprintf(page+len, " Logical Drive= 0x%02x\n", | |
2386 | mbox->m_out.logdrv); | |
2387 | len += sprintf(page+len, " No of SG Elmt= 0x%02x\n", | |
2388 | mbox->m_out.numsgelements); | |
2389 | len += sprintf(page+len, " Busy = %01x\n", | |
2390 | mbox->m_in.busy); | |
2391 | len += sprintf(page+len, " Status = 0x%02x\n", | |
2392 | mbox->m_in.status); | |
2393 | ||
2394 | *eof = 1; | |
2395 | ||
2396 | return len; | |
2397 | } | |
2398 | ||
2399 | ||
2400 | /** | |
2401 | * proc_rebuild_rate() | |
2402 | * @page - buffer to write the data in | |
2403 | * @start - where the actual data has been written in page | |
2404 | * @offset - same meaning as the read system call | |
2405 | * @count - same meaning as the read system call | |
2406 | * @eof - set if no more data needs to be returned | |
2407 | * @data - pointer to our soft state | |
2408 | * | |
2409 | * Display current rebuild rate | |
2410 | */ | |
2411 | static int | |
2412 | proc_rebuild_rate(char *page, char **start, off_t offset, int count, int *eof, | |
2413 | void *data) | |
2414 | { | |
2415 | adapter_t *adapter = (adapter_t *)data; | |
2416 | dma_addr_t dma_handle; | |
2417 | caddr_t inquiry; | |
2418 | struct pci_dev *pdev; | |
2419 | int len = 0; | |
2420 | ||
2421 | if( make_local_pdev(adapter, &pdev) != 0 ) { | |
2422 | *eof = 1; | |
2423 | return len; | |
2424 | } | |
2425 | ||
2426 | if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL ) { | |
2427 | free_local_pdev(pdev); | |
2428 | *eof = 1; | |
2429 | return len; | |
2430 | } | |
2431 | ||
2432 | if( mega_adapinq(adapter, dma_handle) != 0 ) { | |
2433 | ||
2434 | len = sprintf(page, "Adapter inquiry failed.\n"); | |
2435 | ||
2436 | printk(KERN_WARNING "megaraid: inquiry failed.\n"); | |
2437 | ||
2438 | mega_free_inquiry(inquiry, dma_handle, pdev); | |
2439 | ||
2440 | free_local_pdev(pdev); | |
2441 | ||
2442 | *eof = 1; | |
2443 | ||
2444 | return len; | |
2445 | } | |
2446 | ||
2447 | if( adapter->flag & BOARD_40LD ) { | |
2448 | len = sprintf(page, "Rebuild Rate: [%d%%]\n", | |
2449 | ((mega_inquiry3 *)inquiry)->rebuild_rate); | |
2450 | } | |
2451 | else { | |
2452 | len = sprintf(page, "Rebuild Rate: [%d%%]\n", | |
2453 | ((mraid_ext_inquiry *) | |
2454 | inquiry)->raid_inq.adapter_info.rebuild_rate); | |
2455 | } | |
2456 | ||
2457 | ||
2458 | mega_free_inquiry(inquiry, dma_handle, pdev); | |
2459 | ||
2460 | free_local_pdev(pdev); | |
2461 | ||
2462 | *eof = 1; | |
2463 | ||
2464 | return len; | |
2465 | } | |
2466 | ||
2467 | ||
2468 | /** | |
2469 | * proc_battery() | |
2470 | * @page - buffer to write the data in | |
2471 | * @start - where the actual data has been written in page | |
2472 | * @offset - same meaning as the read system call | |
2473 | * @count - same meaning as the read system call | |
2474 | * @eof - set if no more data needs to be returned | |
2475 | * @data - pointer to our soft state | |
2476 | * | |
2477 | * Display information about the battery module on the controller. | |
2478 | */ | |
2479 | static int | |
2480 | proc_battery(char *page, char **start, off_t offset, int count, int *eof, | |
2481 | void *data) | |
2482 | { | |
2483 | adapter_t *adapter = (adapter_t *)data; | |
2484 | dma_addr_t dma_handle; | |
2485 | caddr_t inquiry; | |
2486 | struct pci_dev *pdev; | |
2487 | u8 battery_status = 0; | |
2488 | char str[256]; | |
2489 | int len = 0; | |
2490 | ||
2491 | if( make_local_pdev(adapter, &pdev) != 0 ) { | |
2492 | *eof = 1; | |
2493 | return len; | |
2494 | } | |
2495 | ||
2496 | if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL ) { | |
2497 | free_local_pdev(pdev); | |
2498 | *eof = 1; | |
2499 | return len; | |
2500 | } | |
2501 | ||
2502 | if( mega_adapinq(adapter, dma_handle) != 0 ) { | |
2503 | ||
2504 | len = sprintf(page, "Adapter inquiry failed.\n"); | |
2505 | ||
2506 | printk(KERN_WARNING "megaraid: inquiry failed.\n"); | |
2507 | ||
2508 | mega_free_inquiry(inquiry, dma_handle, pdev); | |
2509 | ||
2510 | free_local_pdev(pdev); | |
2511 | ||
2512 | *eof = 1; | |
2513 | ||
2514 | return len; | |
2515 | } | |
2516 | ||
2517 | if( adapter->flag & BOARD_40LD ) { | |
2518 | battery_status = ((mega_inquiry3 *)inquiry)->battery_status; | |
2519 | } | |
2520 | else { | |
2521 | battery_status = ((mraid_ext_inquiry *)inquiry)-> | |
2522 | raid_inq.adapter_info.battery_status; | |
2523 | } | |
2524 | ||
2525 | /* | |
2526 | * Decode the battery status | |
2527 | */ | |
2528 | sprintf(str, "Battery Status:[%d]", battery_status); | |
2529 | ||
2530 | if(battery_status == MEGA_BATT_CHARGE_DONE) | |
2531 | strcat(str, " Charge Done"); | |
2532 | ||
2533 | if(battery_status & MEGA_BATT_MODULE_MISSING) | |
2534 | strcat(str, " Module Missing"); | |
2535 | ||
2536 | if(battery_status & MEGA_BATT_LOW_VOLTAGE) | |
2537 | strcat(str, " Low Voltage"); | |
2538 | ||
2539 | if(battery_status & MEGA_BATT_TEMP_HIGH) | |
2540 | strcat(str, " Temperature High"); | |
2541 | ||
2542 | if(battery_status & MEGA_BATT_PACK_MISSING) | |
2543 | strcat(str, " Pack Missing"); | |
2544 | ||
2545 | if(battery_status & MEGA_BATT_CHARGE_INPROG) | |
2546 | strcat(str, " Charge In-progress"); | |
2547 | ||
2548 | if(battery_status & MEGA_BATT_CHARGE_FAIL) | |
2549 | strcat(str, " Charge Fail"); | |
2550 | ||
2551 | if(battery_status & MEGA_BATT_CYCLES_EXCEEDED) | |
2552 | strcat(str, " Cycles Exceeded"); | |
2553 | ||
2554 | len = sprintf(page, "%s\n", str); | |
2555 | ||
2556 | ||
2557 | mega_free_inquiry(inquiry, dma_handle, pdev); | |
2558 | ||
2559 | free_local_pdev(pdev); | |
2560 | ||
2561 | *eof = 1; | |
2562 | ||
2563 | return len; | |
2564 | } | |
2565 | ||
2566 | ||
2567 | /** | |
2568 | * proc_pdrv_ch0() | |
2569 | * @page - buffer to write the data in | |
2570 | * @start - where the actual data has been written in page | |
2571 | * @offset - same meaning as the read system call | |
2572 | * @count - same meaning as the read system call | |
2573 | * @eof - set if no more data needs to be returned | |
2574 | * @data - pointer to our soft state | |
2575 | * | |
2576 | * Display information about the physical drives on physical channel 0. | |
2577 | */ | |
2578 | static int | |
2579 | proc_pdrv_ch0(char *page, char **start, off_t offset, int count, int *eof, | |
2580 | void *data) | |
2581 | { | |
2582 | adapter_t *adapter = (adapter_t *)data; | |
2583 | ||
2584 | *eof = 1; | |
2585 | ||
2586 | return (proc_pdrv(adapter, page, 0)); | |
2587 | } | |
2588 | ||
2589 | ||
2590 | /** | |
2591 | * proc_pdrv_ch1() | |
2592 | * @page - buffer to write the data in | |
2593 | * @start - where the actual data has been written in page | |
2594 | * @offset - same meaning as the read system call | |
2595 | * @count - same meaning as the read system call | |
2596 | * @eof - set if no more data needs to be returned | |
2597 | * @data - pointer to our soft state | |
2598 | * | |
2599 | * Display information about the physical drives on physical channel 1. | |
2600 | */ | |
2601 | static int | |
2602 | proc_pdrv_ch1(char *page, char **start, off_t offset, int count, int *eof, | |
2603 | void *data) | |
2604 | { | |
2605 | adapter_t *adapter = (adapter_t *)data; | |
2606 | ||
2607 | *eof = 1; | |
2608 | ||
2609 | return (proc_pdrv(adapter, page, 1)); | |
2610 | } | |
2611 | ||
2612 | ||
2613 | /** | |
2614 | * proc_pdrv_ch2() | |
2615 | * @page - buffer to write the data in | |
2616 | * @start - where the actual data has been written in page | |
2617 | * @offset - same meaning as the read system call | |
2618 | * @count - same meaning as the read system call | |
2619 | * @eof - set if no more data needs to be returned | |
2620 | * @data - pointer to our soft state | |
2621 | * | |
2622 | * Display information about the physical drives on physical channel 2. | |
2623 | */ | |
2624 | static int | |
2625 | proc_pdrv_ch2(char *page, char **start, off_t offset, int count, int *eof, | |
2626 | void *data) | |
2627 | { | |
2628 | adapter_t *adapter = (adapter_t *)data; | |
2629 | ||
2630 | *eof = 1; | |
2631 | ||
2632 | return (proc_pdrv(adapter, page, 2)); | |
2633 | } | |
2634 | ||
2635 | ||
2636 | /** | |
2637 | * proc_pdrv_ch3() | |
2638 | * @page - buffer to write the data in | |
2639 | * @start - where the actual data has been written in page | |
2640 | * @offset - same meaning as the read system call | |
2641 | * @count - same meaning as the read system call | |
2642 | * @eof - set if no more data needs to be returned | |
2643 | * @data - pointer to our soft state | |
2644 | * | |
2645 | * Display information about the physical drives on physical channel 3. | |
2646 | */ | |
2647 | static int | |
2648 | proc_pdrv_ch3(char *page, char **start, off_t offset, int count, int *eof, | |
2649 | void *data) | |
2650 | { | |
2651 | adapter_t *adapter = (adapter_t *)data; | |
2652 | ||
2653 | *eof = 1; | |
2654 | ||
2655 | return (proc_pdrv(adapter, page, 3)); | |
2656 | } | |
2657 | ||
2658 | ||
2659 | /** | |
2660 | * proc_pdrv() | |
2661 | * @page - buffer to write the data in | |
2662 | * @adapter - pointer to our soft state | |
2663 | * | |
2664 | * Display information about the physical drives. | |
2665 | */ | |
2666 | static int | |
2667 | proc_pdrv(adapter_t *adapter, char *page, int channel) | |
2668 | { | |
2669 | dma_addr_t dma_handle; | |
2670 | char *scsi_inq; | |
2671 | dma_addr_t scsi_inq_dma_handle; | |
2672 | caddr_t inquiry; | |
2673 | struct pci_dev *pdev; | |
2674 | u8 *pdrv_state; | |
2675 | u8 state; | |
2676 | int tgt; | |
2677 | int max_channels; | |
2678 | int len = 0; | |
2679 | char str[80]; | |
2680 | int i; | |
2681 | ||
2682 | if( make_local_pdev(adapter, &pdev) != 0 ) { | |
2683 | return len; | |
2684 | } | |
2685 | ||
2686 | if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL ) { | |
2687 | goto free_pdev; | |
2688 | } | |
2689 | ||
2690 | if( mega_adapinq(adapter, dma_handle) != 0 ) { | |
2691 | len = sprintf(page, "Adapter inquiry failed.\n"); | |
2692 | ||
2693 | printk(KERN_WARNING "megaraid: inquiry failed.\n"); | |
2694 | ||
2695 | goto free_inquiry; | |
2696 | } | |
2697 | ||
2698 | ||
2699 | scsi_inq = pci_alloc_consistent(pdev, 256, &scsi_inq_dma_handle); | |
2700 | ||
2701 | if( scsi_inq == NULL ) { | |
2702 | len = sprintf(page, "memory not available for scsi inq.\n"); | |
2703 | ||
2704 | goto free_inquiry; | |
2705 | } | |
2706 | ||
2707 | if( adapter->flag & BOARD_40LD ) { | |
2708 | pdrv_state = ((mega_inquiry3 *)inquiry)->pdrv_state; | |
2709 | } | |
2710 | else { | |
2711 | pdrv_state = ((mraid_ext_inquiry *)inquiry)-> | |
2712 | raid_inq.pdrv_info.pdrv_state; | |
2713 | } | |
2714 | ||
2715 | max_channels = adapter->product_info.nchannels; | |
2716 | ||
2717 | if( channel >= max_channels ) { | |
2718 | goto free_pci; | |
2719 | } | |
2720 | ||
2721 | for( tgt = 0; tgt <= MAX_TARGET; tgt++ ) { | |
2722 | ||
2723 | i = channel*16 + tgt; | |
2724 | ||
2725 | state = *(pdrv_state + i); | |
2726 | ||
2727 | switch( state & 0x0F ) { | |
2728 | ||
2729 | case PDRV_ONLINE: | |
2730 | sprintf(str, | |
2731 | "Channel:%2d Id:%2d State: Online", | |
2732 | channel, tgt); | |
2733 | break; | |
2734 | ||
2735 | case PDRV_FAILED: | |
2736 | sprintf(str, | |
2737 | "Channel:%2d Id:%2d State: Failed", | |
2738 | channel, tgt); | |
2739 | break; | |
2740 | ||
2741 | case PDRV_RBLD: | |
2742 | sprintf(str, | |
2743 | "Channel:%2d Id:%2d State: Rebuild", | |
2744 | channel, tgt); | |
2745 | break; | |
2746 | ||
2747 | case PDRV_HOTSPARE: | |
2748 | sprintf(str, | |
2749 | "Channel:%2d Id:%2d State: Hot spare", | |
2750 | channel, tgt); | |
2751 | break; | |
2752 | ||
2753 | default: | |
2754 | sprintf(str, | |
2755 | "Channel:%2d Id:%2d State: Un-configured", | |
2756 | channel, tgt); | |
2757 | break; | |
2758 | ||
2759 | } | |
2760 | ||
2761 | /* | |
2762 | * This interface displays inquiries for disk drives | |
2763 | * only. Inquries for logical drives and non-disk | |
2764 | * devices are available through /proc/scsi/scsi | |
2765 | */ | |
2766 | memset(scsi_inq, 0, 256); | |
2767 | if( mega_internal_dev_inquiry(adapter, channel, tgt, | |
2768 | scsi_inq_dma_handle) || | |
2769 | (scsi_inq[0] & 0x1F) != TYPE_DISK ) { | |
2770 | continue; | |
2771 | } | |
2772 | ||
2773 | /* | |
2774 | * Check for overflow. We print less than 240 | |
2775 | * characters for inquiry | |
2776 | */ | |
2777 | if( (len + 240) >= PAGE_SIZE ) break; | |
2778 | ||
2779 | len += sprintf(page+len, "%s.\n", str); | |
2780 | ||
2781 | len += mega_print_inquiry(page+len, scsi_inq); | |
2782 | } | |
2783 | ||
2784 | free_pci: | |
2785 | pci_free_consistent(pdev, 256, scsi_inq, scsi_inq_dma_handle); | |
2786 | free_inquiry: | |
2787 | mega_free_inquiry(inquiry, dma_handle, pdev); | |
2788 | free_pdev: | |
2789 | free_local_pdev(pdev); | |
2790 | ||
2791 | return len; | |
2792 | } | |
2793 | ||
2794 | ||
2795 | /* | |
2796 | * Display scsi inquiry | |
2797 | */ | |
2798 | static int | |
2799 | mega_print_inquiry(char *page, char *scsi_inq) | |
2800 | { | |
2801 | int len = 0; | |
2802 | int i; | |
2803 | ||
2804 | len = sprintf(page, " Vendor: "); | |
2805 | for( i = 8; i < 16; i++ ) { | |
2806 | len += sprintf(page+len, "%c", scsi_inq[i]); | |
2807 | } | |
2808 | ||
2809 | len += sprintf(page+len, " Model: "); | |
2810 | ||
2811 | for( i = 16; i < 32; i++ ) { | |
2812 | len += sprintf(page+len, "%c", scsi_inq[i]); | |
2813 | } | |
2814 | ||
2815 | len += sprintf(page+len, " Rev: "); | |
2816 | ||
2817 | for( i = 32; i < 36; i++ ) { | |
2818 | len += sprintf(page+len, "%c", scsi_inq[i]); | |
2819 | } | |
2820 | ||
2821 | len += sprintf(page+len, "\n"); | |
2822 | ||
2823 | i = scsi_inq[0] & 0x1f; | |
2824 | ||
2825 | len += sprintf(page+len, " Type: %s ", | |
2826 | i < MAX_SCSI_DEVICE_CODE ? scsi_device_types[i] : | |
2827 | "Unknown "); | |
2828 | ||
2829 | len += sprintf(page+len, | |
2830 | " ANSI SCSI revision: %02x", scsi_inq[2] & 0x07); | |
2831 | ||
2832 | if( (scsi_inq[2] & 0x07) == 1 && (scsi_inq[3] & 0x0f) == 1 ) | |
2833 | len += sprintf(page+len, " CCS\n"); | |
2834 | else | |
2835 | len += sprintf(page+len, "\n"); | |
2836 | ||
2837 | return len; | |
2838 | } | |
2839 | ||
2840 | ||
2841 | /** | |
2842 | * proc_rdrv_10() | |
2843 | * @page - buffer to write the data in | |
2844 | * @start - where the actual data has been written in page | |
2845 | * @offset - same meaning as the read system call | |
2846 | * @count - same meaning as the read system call | |
2847 | * @eof - set if no more data needs to be returned | |
2848 | * @data - pointer to our soft state | |
2849 | * | |
2850 | * Display real time information about the logical drives 0 through 9. | |
2851 | */ | |
2852 | static int | |
2853 | proc_rdrv_10(char *page, char **start, off_t offset, int count, int *eof, | |
2854 | void *data) | |
2855 | { | |
2856 | adapter_t *adapter = (adapter_t *)data; | |
2857 | ||
2858 | *eof = 1; | |
2859 | ||
2860 | return (proc_rdrv(adapter, page, 0, 9)); | |
2861 | } | |
2862 | ||
2863 | ||
2864 | /** | |
2865 | * proc_rdrv_20() | |
2866 | * @page - buffer to write the data in | |
2867 | * @start - where the actual data has been written in page | |
2868 | * @offset - same meaning as the read system call | |
2869 | * @count - same meaning as the read system call | |
2870 | * @eof - set if no more data needs to be returned | |
2871 | * @data - pointer to our soft state | |
2872 | * | |
2873 | * Display real time information about the logical drives 0 through 9. | |
2874 | */ | |
2875 | static int | |
2876 | proc_rdrv_20(char *page, char **start, off_t offset, int count, int *eof, | |
2877 | void *data) | |
2878 | { | |
2879 | adapter_t *adapter = (adapter_t *)data; | |
2880 | ||
2881 | *eof = 1; | |
2882 | ||
2883 | return (proc_rdrv(adapter, page, 10, 19)); | |
2884 | } | |
2885 | ||
2886 | ||
2887 | /** | |
2888 | * proc_rdrv_30() | |
2889 | * @page - buffer to write the data in | |
2890 | * @start - where the actual data has been written in page | |
2891 | * @offset - same meaning as the read system call | |
2892 | * @count - same meaning as the read system call | |
2893 | * @eof - set if no more data needs to be returned | |
2894 | * @data - pointer to our soft state | |
2895 | * | |
2896 | * Display real time information about the logical drives 0 through 9. | |
2897 | */ | |
2898 | static int | |
2899 | proc_rdrv_30(char *page, char **start, off_t offset, int count, int *eof, | |
2900 | void *data) | |
2901 | { | |
2902 | adapter_t *adapter = (adapter_t *)data; | |
2903 | ||
2904 | *eof = 1; | |
2905 | ||
2906 | return (proc_rdrv(adapter, page, 20, 29)); | |
2907 | } | |
2908 | ||
2909 | ||
2910 | /** | |
2911 | * proc_rdrv_40() | |
2912 | * @page - buffer to write the data in | |
2913 | * @start - where the actual data has been written in page | |
2914 | * @offset - same meaning as the read system call | |
2915 | * @count - same meaning as the read system call | |
2916 | * @eof - set if no more data needs to be returned | |
2917 | * @data - pointer to our soft state | |
2918 | * | |
2919 | * Display real time information about the logical drives 0 through 9. | |
2920 | */ | |
2921 | static int | |
2922 | proc_rdrv_40(char *page, char **start, off_t offset, int count, int *eof, | |
2923 | void *data) | |
2924 | { | |
2925 | adapter_t *adapter = (adapter_t *)data; | |
2926 | ||
2927 | *eof = 1; | |
2928 | ||
2929 | return (proc_rdrv(adapter, page, 30, 39)); | |
2930 | } | |
2931 | ||
2932 | ||
2933 | /** | |
2934 | * proc_rdrv() | |
2935 | * @page - buffer to write the data in | |
2936 | * @adapter - pointer to our soft state | |
2937 | * @start - starting logical drive to display | |
2938 | * @end - ending logical drive to display | |
2939 | * | |
2940 | * We do not print the inquiry information since its already available through | |
2941 | * /proc/scsi/scsi interface | |
2942 | */ | |
2943 | static int | |
2944 | proc_rdrv(adapter_t *adapter, char *page, int start, int end ) | |
2945 | { | |
2946 | dma_addr_t dma_handle; | |
2947 | logdrv_param *lparam; | |
2948 | megacmd_t mc; | |
2949 | char *disk_array; | |
2950 | dma_addr_t disk_array_dma_handle; | |
2951 | caddr_t inquiry; | |
2952 | struct pci_dev *pdev; | |
2953 | u8 *rdrv_state; | |
2954 | int num_ldrv; | |
2955 | u32 array_sz; | |
2956 | int len = 0; | |
2957 | int i; | |
2958 | ||
2959 | if( make_local_pdev(adapter, &pdev) != 0 ) { | |
2960 | return len; | |
2961 | } | |
2962 | ||
2963 | if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL ) { | |
2964 | free_local_pdev(pdev); | |
2965 | return len; | |
2966 | } | |
2967 | ||
2968 | if( mega_adapinq(adapter, dma_handle) != 0 ) { | |
2969 | ||
2970 | len = sprintf(page, "Adapter inquiry failed.\n"); | |
2971 | ||
2972 | printk(KERN_WARNING "megaraid: inquiry failed.\n"); | |
2973 | ||
2974 | mega_free_inquiry(inquiry, dma_handle, pdev); | |
2975 | ||
2976 | free_local_pdev(pdev); | |
2977 | ||
2978 | return len; | |
2979 | } | |
2980 | ||
2981 | memset(&mc, 0, sizeof(megacmd_t)); | |
2982 | ||
2983 | if( adapter->flag & BOARD_40LD ) { | |
2984 | array_sz = sizeof(disk_array_40ld); | |
2985 | ||
2986 | rdrv_state = ((mega_inquiry3 *)inquiry)->ldrv_state; | |
2987 | ||
2988 | num_ldrv = ((mega_inquiry3 *)inquiry)->num_ldrv; | |
2989 | } | |
2990 | else { | |
2991 | array_sz = sizeof(disk_array_8ld); | |
2992 | ||
2993 | rdrv_state = ((mraid_ext_inquiry *)inquiry)-> | |
2994 | raid_inq.logdrv_info.ldrv_state; | |
2995 | ||
2996 | num_ldrv = ((mraid_ext_inquiry *)inquiry)-> | |
2997 | raid_inq.logdrv_info.num_ldrv; | |
2998 | } | |
2999 | ||
3000 | disk_array = pci_alloc_consistent(pdev, array_sz, | |
3001 | &disk_array_dma_handle); | |
3002 | ||
3003 | if( disk_array == NULL ) { | |
3004 | len = sprintf(page, "memory not available.\n"); | |
3005 | ||
3006 | mega_free_inquiry(inquiry, dma_handle, pdev); | |
3007 | ||
3008 | free_local_pdev(pdev); | |
3009 | ||
3010 | return len; | |
3011 | } | |
3012 | ||
3013 | mc.xferaddr = (u32)disk_array_dma_handle; | |
3014 | ||
3015 | if( adapter->flag & BOARD_40LD ) { | |
3016 | mc.cmd = FC_NEW_CONFIG; | |
3017 | mc.opcode = OP_DCMD_READ_CONFIG; | |
3018 | ||
cb0258a2 | 3019 | if( mega_internal_command(adapter, &mc, NULL) ) { |
1da177e4 LT |
3020 | |
3021 | len = sprintf(page, "40LD read config failed.\n"); | |
3022 | ||
3023 | mega_free_inquiry(inquiry, dma_handle, pdev); | |
3024 | ||
3025 | pci_free_consistent(pdev, array_sz, disk_array, | |
3026 | disk_array_dma_handle); | |
3027 | ||
3028 | free_local_pdev(pdev); | |
3029 | ||
3030 | return len; | |
3031 | } | |
3032 | ||
3033 | } | |
3034 | else { | |
3035 | mc.cmd = NEW_READ_CONFIG_8LD; | |
3036 | ||
cb0258a2 | 3037 | if( mega_internal_command(adapter, &mc, NULL) ) { |
1da177e4 LT |
3038 | |
3039 | mc.cmd = READ_CONFIG_8LD; | |
3040 | ||
cb0258a2 | 3041 | if( mega_internal_command(adapter, &mc, |
1da177e4 LT |
3042 | NULL) ){ |
3043 | ||
3044 | len = sprintf(page, | |
3045 | "8LD read config failed.\n"); | |
3046 | ||
3047 | mega_free_inquiry(inquiry, dma_handle, pdev); | |
3048 | ||
3049 | pci_free_consistent(pdev, array_sz, | |
3050 | disk_array, | |
3051 | disk_array_dma_handle); | |
3052 | ||
3053 | free_local_pdev(pdev); | |
3054 | ||
3055 | return len; | |
3056 | } | |
3057 | } | |
3058 | } | |
3059 | ||
3060 | for( i = start; i < ( (end+1 < num_ldrv) ? end+1 : num_ldrv ); i++ ) { | |
3061 | ||
3062 | if( adapter->flag & BOARD_40LD ) { | |
3063 | lparam = | |
3064 | &((disk_array_40ld *)disk_array)->ldrv[i].lparam; | |
3065 | } | |
3066 | else { | |
3067 | lparam = | |
3068 | &((disk_array_8ld *)disk_array)->ldrv[i].lparam; | |
3069 | } | |
3070 | ||
3071 | /* | |
3072 | * Check for overflow. We print less than 240 characters for | |
3073 | * information about each logical drive. | |
3074 | */ | |
3075 | if( (len + 240) >= PAGE_SIZE ) break; | |
3076 | ||
3077 | len += sprintf(page+len, "Logical drive:%2d:, ", i); | |
3078 | ||
3079 | switch( rdrv_state[i] & 0x0F ) { | |
3080 | case RDRV_OFFLINE: | |
3081 | len += sprintf(page+len, "state: offline"); | |
3082 | break; | |
3083 | ||
3084 | case RDRV_DEGRADED: | |
3085 | len += sprintf(page+len, "state: degraded"); | |
3086 | break; | |
3087 | ||
3088 | case RDRV_OPTIMAL: | |
3089 | len += sprintf(page+len, "state: optimal"); | |
3090 | break; | |
3091 | ||
3092 | case RDRV_DELETED: | |
3093 | len += sprintf(page+len, "state: deleted"); | |
3094 | break; | |
3095 | ||
3096 | default: | |
3097 | len += sprintf(page+len, "state: unknown"); | |
3098 | break; | |
3099 | } | |
3100 | ||
3101 | /* | |
3102 | * Check if check consistency or initialization is going on | |
3103 | * for this logical drive. | |
3104 | */ | |
3105 | if( (rdrv_state[i] & 0xF0) == 0x20 ) { | |
3106 | len += sprintf(page+len, | |
3107 | ", check-consistency in progress"); | |
3108 | } | |
3109 | else if( (rdrv_state[i] & 0xF0) == 0x10 ) { | |
3110 | len += sprintf(page+len, | |
3111 | ", initialization in progress"); | |
3112 | } | |
3113 | ||
3114 | len += sprintf(page+len, "\n"); | |
3115 | ||
3116 | len += sprintf(page+len, "Span depth:%3d, ", | |
3117 | lparam->span_depth); | |
3118 | ||
3119 | len += sprintf(page+len, "RAID level:%3d, ", | |
3120 | lparam->level); | |
3121 | ||
3122 | len += sprintf(page+len, "Stripe size:%3d, ", | |
3123 | lparam->stripe_sz ? lparam->stripe_sz/2: 128); | |
3124 | ||
3125 | len += sprintf(page+len, "Row size:%3d\n", | |
3126 | lparam->row_size); | |
3127 | ||
3128 | ||
3129 | len += sprintf(page+len, "Read Policy: "); | |
3130 | ||
3131 | switch(lparam->read_ahead) { | |
3132 | ||
3133 | case NO_READ_AHEAD: | |
3134 | len += sprintf(page+len, "No read ahead, "); | |
3135 | break; | |
3136 | ||
3137 | case READ_AHEAD: | |
3138 | len += sprintf(page+len, "Read ahead, "); | |
3139 | break; | |
3140 | ||
3141 | case ADAP_READ_AHEAD: | |
3142 | len += sprintf(page+len, "Adaptive, "); | |
3143 | break; | |
3144 | ||
3145 | } | |
3146 | ||
3147 | len += sprintf(page+len, "Write Policy: "); | |
3148 | ||
3149 | switch(lparam->write_mode) { | |
3150 | ||
3151 | case WRMODE_WRITE_THRU: | |
3152 | len += sprintf(page+len, "Write thru, "); | |
3153 | break; | |
3154 | ||
3155 | case WRMODE_WRITE_BACK: | |
3156 | len += sprintf(page+len, "Write back, "); | |
3157 | break; | |
3158 | } | |
3159 | ||
3160 | len += sprintf(page+len, "Cache Policy: "); | |
3161 | ||
3162 | switch(lparam->direct_io) { | |
3163 | ||
3164 | case CACHED_IO: | |
3165 | len += sprintf(page+len, "Cached IO\n\n"); | |
3166 | break; | |
3167 | ||
3168 | case DIRECT_IO: | |
3169 | len += sprintf(page+len, "Direct IO\n\n"); | |
3170 | break; | |
3171 | } | |
3172 | } | |
3173 | ||
3174 | mega_free_inquiry(inquiry, dma_handle, pdev); | |
3175 | ||
3176 | pci_free_consistent(pdev, array_sz, disk_array, | |
3177 | disk_array_dma_handle); | |
3178 | ||
3179 | free_local_pdev(pdev); | |
3180 | ||
3181 | return len; | |
3182 | } | |
3183 | ||
3184 | #endif | |
3185 | ||
3186 | ||
3187 | /** | |
3188 | * megaraid_biosparam() | |
3189 | * | |
3190 | * Return the disk geometry for a particular disk | |
3191 | */ | |
3192 | static int | |
3193 | megaraid_biosparam(struct scsi_device *sdev, struct block_device *bdev, | |
3194 | sector_t capacity, int geom[]) | |
3195 | { | |
3196 | adapter_t *adapter; | |
3197 | unsigned char *bh; | |
3198 | int heads; | |
3199 | int sectors; | |
3200 | int cylinders; | |
3201 | int rval; | |
3202 | ||
3203 | /* Get pointer to host config structure */ | |
3204 | adapter = (adapter_t *)sdev->host->hostdata; | |
3205 | ||
3206 | if (IS_RAID_CH(adapter, sdev->channel)) { | |
3207 | /* Default heads (64) & sectors (32) */ | |
3208 | heads = 64; | |
3209 | sectors = 32; | |
3210 | cylinders = (ulong)capacity / (heads * sectors); | |
3211 | ||
3212 | /* | |
3213 | * Handle extended translation size for logical drives | |
3214 | * > 1Gb | |
3215 | */ | |
3216 | if ((ulong)capacity >= 0x200000) { | |
3217 | heads = 255; | |
3218 | sectors = 63; | |
3219 | cylinders = (ulong)capacity / (heads * sectors); | |
3220 | } | |
3221 | ||
3222 | /* return result */ | |
3223 | geom[0] = heads; | |
3224 | geom[1] = sectors; | |
3225 | geom[2] = cylinders; | |
3226 | } | |
3227 | else { | |
3228 | bh = scsi_bios_ptable(bdev); | |
3229 | ||
3230 | if( bh ) { | |
3231 | rval = scsi_partsize(bh, capacity, | |
3232 | &geom[2], &geom[0], &geom[1]); | |
3233 | kfree(bh); | |
3234 | if( rval != -1 ) | |
3235 | return rval; | |
3236 | } | |
3237 | ||
3238 | printk(KERN_INFO | |
3239 | "megaraid: invalid partition on this disk on channel %d\n", | |
3240 | sdev->channel); | |
3241 | ||
3242 | /* Default heads (64) & sectors (32) */ | |
3243 | heads = 64; | |
3244 | sectors = 32; | |
3245 | cylinders = (ulong)capacity / (heads * sectors); | |
3246 | ||
3247 | /* Handle extended translation size for logical drives > 1Gb */ | |
3248 | if ((ulong)capacity >= 0x200000) { | |
3249 | heads = 255; | |
3250 | sectors = 63; | |
3251 | cylinders = (ulong)capacity / (heads * sectors); | |
3252 | } | |
3253 | ||
3254 | /* return result */ | |
3255 | geom[0] = heads; | |
3256 | geom[1] = sectors; | |
3257 | geom[2] = cylinders; | |
3258 | } | |
3259 | ||
3260 | return 0; | |
3261 | } | |
3262 | ||
3263 | /** | |
3264 | * mega_init_scb() | |
3265 | * @adapter - pointer to our soft state | |
3266 | * | |
3267 | * Allocate memory for the various pointers in the scb structures: | |
3268 | * scatter-gather list pointer, passthru and extended passthru structure | |
3269 | * pointers. | |
3270 | */ | |
3271 | static int | |
3272 | mega_init_scb(adapter_t *adapter) | |
3273 | { | |
3274 | scb_t *scb; | |
3275 | int i; | |
3276 | ||
3277 | for( i = 0; i < adapter->max_cmds; i++ ) { | |
3278 | ||
3279 | scb = &adapter->scb_list[i]; | |
3280 | ||
3281 | scb->sgl64 = NULL; | |
3282 | scb->sgl = NULL; | |
3283 | scb->pthru = NULL; | |
3284 | scb->epthru = NULL; | |
3285 | } | |
3286 | ||
3287 | for( i = 0; i < adapter->max_cmds; i++ ) { | |
3288 | ||
3289 | scb = &adapter->scb_list[i]; | |
3290 | ||
3291 | scb->idx = i; | |
3292 | ||
3293 | scb->sgl64 = pci_alloc_consistent(adapter->dev, | |
3294 | sizeof(mega_sgl64) * adapter->sglen, | |
3295 | &scb->sgl_dma_addr); | |
3296 | ||
3297 | scb->sgl = (mega_sglist *)scb->sgl64; | |
3298 | ||
3299 | if( !scb->sgl ) { | |
3300 | printk(KERN_WARNING "RAID: Can't allocate sglist.\n"); | |
3301 | mega_free_sgl(adapter); | |
3302 | return -1; | |
3303 | } | |
3304 | ||
3305 | scb->pthru = pci_alloc_consistent(adapter->dev, | |
3306 | sizeof(mega_passthru), | |
3307 | &scb->pthru_dma_addr); | |
3308 | ||
3309 | if( !scb->pthru ) { | |
3310 | printk(KERN_WARNING "RAID: Can't allocate passthru.\n"); | |
3311 | mega_free_sgl(adapter); | |
3312 | return -1; | |
3313 | } | |
3314 | ||
3315 | scb->epthru = pci_alloc_consistent(adapter->dev, | |
3316 | sizeof(mega_ext_passthru), | |
3317 | &scb->epthru_dma_addr); | |
3318 | ||
3319 | if( !scb->epthru ) { | |
3320 | printk(KERN_WARNING | |
3321 | "Can't allocate extended passthru.\n"); | |
3322 | mega_free_sgl(adapter); | |
3323 | return -1; | |
3324 | } | |
3325 | ||
3326 | ||
3327 | scb->dma_type = MEGA_DMA_TYPE_NONE; | |
3328 | ||
3329 | /* | |
3330 | * Link to free list | |
3331 | * lock not required since we are loading the driver, so no | |
3332 | * commands possible right now. | |
3333 | */ | |
3334 | scb->state = SCB_FREE; | |
3335 | scb->cmd = NULL; | |
3336 | list_add(&scb->list, &adapter->free_list); | |
3337 | } | |
3338 | ||
3339 | return 0; | |
3340 | } | |
3341 | ||
3342 | ||
3343 | /** | |
3344 | * megadev_open() | |
3345 | * @inode - unused | |
3346 | * @filep - unused | |
3347 | * | |
3348 | * Routines for the character/ioctl interface to the driver. Find out if this | |
3349 | * is a valid open. If yes, increment the module use count so that it cannot | |
3350 | * be unloaded. | |
3351 | */ | |
3352 | static int | |
3353 | megadev_open (struct inode *inode, struct file *filep) | |
3354 | { | |
3355 | /* | |
3356 | * Only allow superuser to access private ioctl interface | |
3357 | */ | |
3358 | if( !capable(CAP_SYS_ADMIN) ) return -EACCES; | |
3359 | ||
3360 | return 0; | |
3361 | } | |
3362 | ||
3363 | ||
3364 | /** | |
3365 | * megadev_ioctl() | |
3366 | * @inode - Our device inode | |
3367 | * @filep - unused | |
3368 | * @cmd - ioctl command | |
3369 | * @arg - user buffer | |
3370 | * | |
3371 | * ioctl entry point for our private ioctl interface. We move the data in from | |
3372 | * the user space, prepare the command (if necessary, convert the old MIMD | |
3373 | * ioctl to new ioctl command), and issue a synchronous command to the | |
3374 | * controller. | |
3375 | */ | |
3376 | static int | |
3377 | megadev_ioctl(struct inode *inode, struct file *filep, unsigned int cmd, | |
3378 | unsigned long arg) | |
3379 | { | |
3380 | adapter_t *adapter; | |
3381 | nitioctl_t uioc; | |
3382 | int adapno; | |
3383 | int rval; | |
3384 | mega_passthru __user *upthru; /* user address for passthru */ | |
3385 | mega_passthru *pthru; /* copy user passthru here */ | |
3386 | dma_addr_t pthru_dma_hndl; | |
3387 | void *data = NULL; /* data to be transferred */ | |
3388 | dma_addr_t data_dma_hndl; /* dma handle for data xfer area */ | |
3389 | megacmd_t mc; | |
3390 | megastat_t __user *ustats; | |
3391 | int num_ldrv; | |
3392 | u32 uxferaddr = 0; | |
3393 | struct pci_dev *pdev; | |
3394 | ||
3395 | ustats = NULL; /* avoid compilation warnings */ | |
3396 | num_ldrv = 0; | |
3397 | ||
3398 | /* | |
3399 | * Make sure only USCSICMD are issued through this interface. | |
3400 | * MIMD application would still fire different command. | |
3401 | */ | |
3402 | if( (_IOC_TYPE(cmd) != MEGAIOC_MAGIC) && (cmd != USCSICMD) ) { | |
3403 | return -EINVAL; | |
3404 | } | |
3405 | ||
3406 | /* | |
3407 | * Check and convert a possible MIMD command to NIT command. | |
3408 | * mega_m_to_n() copies the data from the user space, so we do not | |
3409 | * have to do it here. | |
3410 | * NOTE: We will need some user address to copyout the data, therefore | |
3411 | * the inteface layer will also provide us with the required user | |
3412 | * addresses. | |
3413 | */ | |
3414 | memset(&uioc, 0, sizeof(nitioctl_t)); | |
3415 | if( (rval = mega_m_to_n( (void __user *)arg, &uioc)) != 0 ) | |
3416 | return rval; | |
3417 | ||
3418 | ||
3419 | switch( uioc.opcode ) { | |
3420 | ||
3421 | case GET_DRIVER_VER: | |
3422 | if( put_user(driver_ver, (u32 __user *)uioc.uioc_uaddr) ) | |
3423 | return (-EFAULT); | |
3424 | ||
3425 | break; | |
3426 | ||
3427 | case GET_N_ADAP: | |
3428 | if( put_user(hba_count, (u32 __user *)uioc.uioc_uaddr) ) | |
3429 | return (-EFAULT); | |
3430 | ||
3431 | /* | |
3432 | * Shucks. MIMD interface returns a positive value for number | |
3433 | * of adapters. TODO: Change it to return 0 when there is no | |
3434 | * applicatio using mimd interface. | |
3435 | */ | |
3436 | return hba_count; | |
3437 | ||
3438 | case GET_ADAP_INFO: | |
3439 | ||
3440 | /* | |
3441 | * Which adapter | |
3442 | */ | |
3443 | if( (adapno = GETADAP(uioc.adapno)) >= hba_count ) | |
3444 | return (-ENODEV); | |
3445 | ||
3446 | if( copy_to_user(uioc.uioc_uaddr, mcontroller+adapno, | |
3447 | sizeof(struct mcontroller)) ) | |
3448 | return (-EFAULT); | |
3449 | break; | |
3450 | ||
3451 | #if MEGA_HAVE_STATS | |
3452 | ||
3453 | case GET_STATS: | |
3454 | /* | |
3455 | * Which adapter | |
3456 | */ | |
3457 | if( (adapno = GETADAP(uioc.adapno)) >= hba_count ) | |
3458 | return (-ENODEV); | |
3459 | ||
3460 | adapter = hba_soft_state[adapno]; | |
3461 | ||
3462 | ustats = uioc.uioc_uaddr; | |
3463 | ||
3464 | if( copy_from_user(&num_ldrv, &ustats->num_ldrv, sizeof(int)) ) | |
3465 | return (-EFAULT); | |
3466 | ||
3467 | /* | |
3468 | * Check for the validity of the logical drive number | |
3469 | */ | |
3470 | if( num_ldrv >= MAX_LOGICAL_DRIVES_40LD ) return -EINVAL; | |
3471 | ||
3472 | if( copy_to_user(ustats->nreads, adapter->nreads, | |
3473 | num_ldrv*sizeof(u32)) ) | |
3474 | return -EFAULT; | |
3475 | ||
3476 | if( copy_to_user(ustats->nreadblocks, adapter->nreadblocks, | |
3477 | num_ldrv*sizeof(u32)) ) | |
3478 | return -EFAULT; | |
3479 | ||
3480 | if( copy_to_user(ustats->nwrites, adapter->nwrites, | |
3481 | num_ldrv*sizeof(u32)) ) | |
3482 | return -EFAULT; | |
3483 | ||
3484 | if( copy_to_user(ustats->nwriteblocks, adapter->nwriteblocks, | |
3485 | num_ldrv*sizeof(u32)) ) | |
3486 | return -EFAULT; | |
3487 | ||
3488 | if( copy_to_user(ustats->rd_errors, adapter->rd_errors, | |
3489 | num_ldrv*sizeof(u32)) ) | |
3490 | return -EFAULT; | |
3491 | ||
3492 | if( copy_to_user(ustats->wr_errors, adapter->wr_errors, | |
3493 | num_ldrv*sizeof(u32)) ) | |
3494 | return -EFAULT; | |
3495 | ||
3496 | return 0; | |
3497 | ||
3498 | #endif | |
3499 | case MBOX_CMD: | |
3500 | ||
3501 | /* | |
3502 | * Which adapter | |
3503 | */ | |
3504 | if( (adapno = GETADAP(uioc.adapno)) >= hba_count ) | |
3505 | return (-ENODEV); | |
3506 | ||
3507 | adapter = hba_soft_state[adapno]; | |
3508 | ||
3509 | /* | |
3510 | * Deletion of logical drive is a special case. The adapter | |
3511 | * should be quiescent before this command is issued. | |
3512 | */ | |
3513 | if( uioc.uioc_rmbox[0] == FC_DEL_LOGDRV && | |
3514 | uioc.uioc_rmbox[2] == OP_DEL_LOGDRV ) { | |
3515 | ||
3516 | /* | |
3517 | * Do we support this feature | |
3518 | */ | |
3519 | if( !adapter->support_random_del ) { | |
3520 | printk(KERN_WARNING "megaraid: logdrv "); | |
3521 | printk("delete on non-supporting F/W.\n"); | |
3522 | ||
3523 | return (-EINVAL); | |
3524 | } | |
3525 | ||
3526 | rval = mega_del_logdrv( adapter, uioc.uioc_rmbox[3] ); | |
3527 | ||
3528 | if( rval == 0 ) { | |
3529 | memset(&mc, 0, sizeof(megacmd_t)); | |
3530 | ||
3531 | mc.status = rval; | |
3532 | ||
3533 | rval = mega_n_to_m((void __user *)arg, &mc); | |
3534 | } | |
3535 | ||
3536 | return rval; | |
3537 | } | |
3538 | /* | |
3539 | * This interface only support the regular passthru commands. | |
3540 | * Reject extended passthru and 64-bit passthru | |
3541 | */ | |
3542 | if( uioc.uioc_rmbox[0] == MEGA_MBOXCMD_PASSTHRU64 || | |
3543 | uioc.uioc_rmbox[0] == MEGA_MBOXCMD_EXTPTHRU ) { | |
3544 | ||
3545 | printk(KERN_WARNING "megaraid: rejected passthru.\n"); | |
3546 | ||
3547 | return (-EINVAL); | |
3548 | } | |
3549 | ||
3550 | /* | |
3551 | * For all internal commands, the buffer must be allocated in | |
3552 | * <4GB address range | |
3553 | */ | |
3554 | if( make_local_pdev(adapter, &pdev) != 0 ) | |
3555 | return -EIO; | |
3556 | ||
3557 | /* Is it a passthru command or a DCMD */ | |
3558 | if( uioc.uioc_rmbox[0] == MEGA_MBOXCMD_PASSTHRU ) { | |
3559 | /* Passthru commands */ | |
3560 | ||
3561 | pthru = pci_alloc_consistent(pdev, | |
3562 | sizeof(mega_passthru), | |
3563 | &pthru_dma_hndl); | |
3564 | ||
3565 | if( pthru == NULL ) { | |
3566 | free_local_pdev(pdev); | |
3567 | return (-ENOMEM); | |
3568 | } | |
3569 | ||
3570 | /* | |
3571 | * The user passthru structure | |
3572 | */ | |
3573 | upthru = (mega_passthru __user *)MBOX(uioc)->xferaddr; | |
3574 | ||
3575 | /* | |
3576 | * Copy in the user passthru here. | |
3577 | */ | |
3578 | if( copy_from_user(pthru, upthru, | |
3579 | sizeof(mega_passthru)) ) { | |
3580 | ||
3581 | pci_free_consistent(pdev, | |
3582 | sizeof(mega_passthru), pthru, | |
3583 | pthru_dma_hndl); | |
3584 | ||
3585 | free_local_pdev(pdev); | |
3586 | ||
3587 | return (-EFAULT); | |
3588 | } | |
3589 | ||
3590 | /* | |
3591 | * Is there a data transfer | |
3592 | */ | |
3593 | if( pthru->dataxferlen ) { | |
3594 | data = pci_alloc_consistent(pdev, | |
3595 | pthru->dataxferlen, | |
3596 | &data_dma_hndl); | |
3597 | ||
3598 | if( data == NULL ) { | |
3599 | pci_free_consistent(pdev, | |
3600 | sizeof(mega_passthru), | |
3601 | pthru, | |
3602 | pthru_dma_hndl); | |
3603 | ||
3604 | free_local_pdev(pdev); | |
3605 | ||
3606 | return (-ENOMEM); | |
3607 | } | |
3608 | ||
3609 | /* | |
3610 | * Save the user address and point the kernel | |
3611 | * address at just allocated memory | |
3612 | */ | |
3613 | uxferaddr = pthru->dataxferaddr; | |
3614 | pthru->dataxferaddr = data_dma_hndl; | |
3615 | } | |
3616 | ||
3617 | ||
3618 | /* | |
3619 | * Is data coming down-stream | |
3620 | */ | |
3621 | if( pthru->dataxferlen && (uioc.flags & UIOC_WR) ) { | |
3622 | /* | |
3623 | * Get the user data | |
3624 | */ | |
3625 | if( copy_from_user(data, (char __user *)uxferaddr, | |
3626 | pthru->dataxferlen) ) { | |
3627 | rval = (-EFAULT); | |
3628 | goto freemem_and_return; | |
3629 | } | |
3630 | } | |
3631 | ||
3632 | memset(&mc, 0, sizeof(megacmd_t)); | |
3633 | ||
3634 | mc.cmd = MEGA_MBOXCMD_PASSTHRU; | |
3635 | mc.xferaddr = (u32)pthru_dma_hndl; | |
3636 | ||
3637 | /* | |
3638 | * Issue the command | |
3639 | */ | |
cb0258a2 | 3640 | mega_internal_command(adapter, &mc, pthru); |
1da177e4 LT |
3641 | |
3642 | rval = mega_n_to_m((void __user *)arg, &mc); | |
3643 | ||
3644 | if( rval ) goto freemem_and_return; | |
3645 | ||
3646 | ||
3647 | /* | |
3648 | * Is data going up-stream | |
3649 | */ | |
3650 | if( pthru->dataxferlen && (uioc.flags & UIOC_RD) ) { | |
3651 | if( copy_to_user((char __user *)uxferaddr, data, | |
3652 | pthru->dataxferlen) ) { | |
3653 | rval = (-EFAULT); | |
3654 | } | |
3655 | } | |
3656 | ||
3657 | /* | |
3658 | * Send the request sense data also, irrespective of | |
3659 | * whether the user has asked for it or not. | |
3660 | */ | |
3661 | copy_to_user(upthru->reqsensearea, | |
3662 | pthru->reqsensearea, 14); | |
3663 | ||
3664 | freemem_and_return: | |
3665 | if( pthru->dataxferlen ) { | |
3666 | pci_free_consistent(pdev, | |
3667 | pthru->dataxferlen, data, | |
3668 | data_dma_hndl); | |
3669 | } | |
3670 | ||
3671 | pci_free_consistent(pdev, sizeof(mega_passthru), | |
3672 | pthru, pthru_dma_hndl); | |
3673 | ||
3674 | free_local_pdev(pdev); | |
3675 | ||
3676 | return rval; | |
3677 | } | |
3678 | else { | |
3679 | /* DCMD commands */ | |
3680 | ||
3681 | /* | |
3682 | * Is there a data transfer | |
3683 | */ | |
3684 | if( uioc.xferlen ) { | |
3685 | data = pci_alloc_consistent(pdev, | |
3686 | uioc.xferlen, &data_dma_hndl); | |
3687 | ||
3688 | if( data == NULL ) { | |
3689 | free_local_pdev(pdev); | |
3690 | return (-ENOMEM); | |
3691 | } | |
3692 | ||
3693 | uxferaddr = MBOX(uioc)->xferaddr; | |
3694 | } | |
3695 | ||
3696 | /* | |
3697 | * Is data coming down-stream | |
3698 | */ | |
3699 | if( uioc.xferlen && (uioc.flags & UIOC_WR) ) { | |
3700 | /* | |
3701 | * Get the user data | |
3702 | */ | |
3703 | if( copy_from_user(data, (char __user *)uxferaddr, | |
3704 | uioc.xferlen) ) { | |
3705 | ||
3706 | pci_free_consistent(pdev, | |
3707 | uioc.xferlen, | |
3708 | data, data_dma_hndl); | |
3709 | ||
3710 | free_local_pdev(pdev); | |
3711 | ||
3712 | return (-EFAULT); | |
3713 | } | |
3714 | } | |
3715 | ||
3716 | memcpy(&mc, MBOX(uioc), sizeof(megacmd_t)); | |
3717 | ||
3718 | mc.xferaddr = (u32)data_dma_hndl; | |
3719 | ||
3720 | /* | |
3721 | * Issue the command | |
3722 | */ | |
cb0258a2 | 3723 | mega_internal_command(adapter, &mc, NULL); |
1da177e4 LT |
3724 | |
3725 | rval = mega_n_to_m((void __user *)arg, &mc); | |
3726 | ||
3727 | if( rval ) { | |
3728 | if( uioc.xferlen ) { | |
3729 | pci_free_consistent(pdev, | |
3730 | uioc.xferlen, data, | |
3731 | data_dma_hndl); | |
3732 | } | |
3733 | ||
3734 | free_local_pdev(pdev); | |
3735 | ||
3736 | return rval; | |
3737 | } | |
3738 | ||
3739 | /* | |
3740 | * Is data going up-stream | |
3741 | */ | |
3742 | if( uioc.xferlen && (uioc.flags & UIOC_RD) ) { | |
3743 | if( copy_to_user((char __user *)uxferaddr, data, | |
3744 | uioc.xferlen) ) { | |
3745 | ||
3746 | rval = (-EFAULT); | |
3747 | } | |
3748 | } | |
3749 | ||
3750 | if( uioc.xferlen ) { | |
3751 | pci_free_consistent(pdev, | |
3752 | uioc.xferlen, data, | |
3753 | data_dma_hndl); | |
3754 | } | |
3755 | ||
3756 | free_local_pdev(pdev); | |
3757 | ||
3758 | return rval; | |
3759 | } | |
3760 | ||
3761 | default: | |
3762 | return (-EINVAL); | |
3763 | } | |
3764 | ||
3765 | return 0; | |
3766 | } | |
3767 | ||
3768 | /** | |
3769 | * mega_m_to_n() | |
3770 | * @arg - user address | |
3771 | * @uioc - new ioctl structure | |
3772 | * | |
3773 | * A thin layer to convert older mimd interface ioctl structure to NIT ioctl | |
3774 | * structure | |
3775 | * | |
3776 | * Converts the older mimd ioctl structure to newer NIT structure | |
3777 | */ | |
3778 | static int | |
3779 | mega_m_to_n(void __user *arg, nitioctl_t *uioc) | |
3780 | { | |
3781 | struct uioctl_t uioc_mimd; | |
3782 | char signature[8] = {0}; | |
3783 | u8 opcode; | |
3784 | u8 subopcode; | |
3785 | ||
3786 | ||
3787 | /* | |
3788 | * check is the application conforms to NIT. We do not have to do much | |
3789 | * in that case. | |
3790 | * We exploit the fact that the signature is stored in the very | |
3791 | * begining of the structure. | |
3792 | */ | |
3793 | ||
3794 | if( copy_from_user(signature, arg, 7) ) | |
3795 | return (-EFAULT); | |
3796 | ||
3797 | if( memcmp(signature, "MEGANIT", 7) == 0 ) { | |
3798 | ||
3799 | /* | |
3800 | * NOTE NOTE: The nit ioctl is still under flux because of | |
3801 | * change of mailbox definition, in HPE. No applications yet | |
3802 | * use this interface and let's not have applications use this | |
3803 | * interface till the new specifitions are in place. | |
3804 | */ | |
3805 | return -EINVAL; | |
3806 | #if 0 | |
3807 | if( copy_from_user(uioc, arg, sizeof(nitioctl_t)) ) | |
3808 | return (-EFAULT); | |
3809 | return 0; | |
3810 | #endif | |
3811 | } | |
3812 | ||
3813 | /* | |
3814 | * Else assume we have mimd uioctl_t as arg. Convert to nitioctl_t | |
3815 | * | |
3816 | * Get the user ioctl structure | |
3817 | */ | |
3818 | if( copy_from_user(&uioc_mimd, arg, sizeof(struct uioctl_t)) ) | |
3819 | return (-EFAULT); | |
3820 | ||
3821 | ||
3822 | /* | |
3823 | * Get the opcode and subopcode for the commands | |
3824 | */ | |
3825 | opcode = uioc_mimd.ui.fcs.opcode; | |
3826 | subopcode = uioc_mimd.ui.fcs.subopcode; | |
3827 | ||
3828 | switch (opcode) { | |
3829 | case 0x82: | |
3830 | ||
3831 | switch (subopcode) { | |
3832 | ||
3833 | case MEGAIOC_QDRVRVER: /* Query driver version */ | |
3834 | uioc->opcode = GET_DRIVER_VER; | |
3835 | uioc->uioc_uaddr = uioc_mimd.data; | |
3836 | break; | |
3837 | ||
3838 | case MEGAIOC_QNADAP: /* Get # of adapters */ | |
3839 | uioc->opcode = GET_N_ADAP; | |
3840 | uioc->uioc_uaddr = uioc_mimd.data; | |
3841 | break; | |
3842 | ||
3843 | case MEGAIOC_QADAPINFO: /* Get adapter information */ | |
3844 | uioc->opcode = GET_ADAP_INFO; | |
3845 | uioc->adapno = uioc_mimd.ui.fcs.adapno; | |
3846 | uioc->uioc_uaddr = uioc_mimd.data; | |
3847 | break; | |
3848 | ||
3849 | default: | |
3850 | return(-EINVAL); | |
3851 | } | |
3852 | ||
3853 | break; | |
3854 | ||
3855 | ||
3856 | case 0x81: | |
3857 | ||
3858 | uioc->opcode = MBOX_CMD; | |
3859 | uioc->adapno = uioc_mimd.ui.fcs.adapno; | |
3860 | ||
3861 | memcpy(uioc->uioc_rmbox, uioc_mimd.mbox, 18); | |
3862 | ||
3863 | uioc->xferlen = uioc_mimd.ui.fcs.length; | |
3864 | ||
3865 | if( uioc_mimd.outlen ) uioc->flags = UIOC_RD; | |
3866 | if( uioc_mimd.inlen ) uioc->flags |= UIOC_WR; | |
3867 | ||
3868 | break; | |
3869 | ||
3870 | case 0x80: | |
3871 | ||
3872 | uioc->opcode = MBOX_CMD; | |
3873 | uioc->adapno = uioc_mimd.ui.fcs.adapno; | |
3874 | ||
3875 | memcpy(uioc->uioc_rmbox, uioc_mimd.mbox, 18); | |
3876 | ||
3877 | /* | |
3878 | * Choose the xferlen bigger of input and output data | |
3879 | */ | |
3880 | uioc->xferlen = uioc_mimd.outlen > uioc_mimd.inlen ? | |
3881 | uioc_mimd.outlen : uioc_mimd.inlen; | |
3882 | ||
3883 | if( uioc_mimd.outlen ) uioc->flags = UIOC_RD; | |
3884 | if( uioc_mimd.inlen ) uioc->flags |= UIOC_WR; | |
3885 | ||
3886 | break; | |
3887 | ||
3888 | default: | |
3889 | return (-EINVAL); | |
3890 | ||
3891 | } | |
3892 | ||
3893 | return 0; | |
3894 | } | |
3895 | ||
3896 | /* | |
3897 | * mega_n_to_m() | |
3898 | * @arg - user address | |
3899 | * @mc - mailbox command | |
3900 | * | |
3901 | * Updates the status information to the application, depending on application | |
3902 | * conforms to older mimd ioctl interface or newer NIT ioctl interface | |
3903 | */ | |
3904 | static int | |
3905 | mega_n_to_m(void __user *arg, megacmd_t *mc) | |
3906 | { | |
3907 | nitioctl_t __user *uiocp; | |
3908 | megacmd_t __user *umc; | |
3909 | mega_passthru __user *upthru; | |
3910 | struct uioctl_t __user *uioc_mimd; | |
3911 | char signature[8] = {0}; | |
3912 | ||
3913 | /* | |
3914 | * check is the application conforms to NIT. | |
3915 | */ | |
3916 | if( copy_from_user(signature, arg, 7) ) | |
3917 | return -EFAULT; | |
3918 | ||
3919 | if( memcmp(signature, "MEGANIT", 7) == 0 ) { | |
3920 | ||
3921 | uiocp = arg; | |
3922 | ||
3923 | if( put_user(mc->status, (u8 __user *)&MBOX_P(uiocp)->status) ) | |
3924 | return (-EFAULT); | |
3925 | ||
3926 | if( mc->cmd == MEGA_MBOXCMD_PASSTHRU ) { | |
3927 | ||
3928 | umc = MBOX_P(uiocp); | |
3929 | ||
3930 | if (get_user(upthru, (mega_passthru __user * __user *)&umc->xferaddr)) | |
3931 | return -EFAULT; | |
3932 | ||
3933 | if( put_user(mc->status, (u8 __user *)&upthru->scsistatus)) | |
3934 | return (-EFAULT); | |
3935 | } | |
3936 | } | |
3937 | else { | |
3938 | uioc_mimd = arg; | |
3939 | ||
3940 | if( put_user(mc->status, (u8 __user *)&uioc_mimd->mbox[17]) ) | |
3941 | return (-EFAULT); | |
3942 | ||
3943 | if( mc->cmd == MEGA_MBOXCMD_PASSTHRU ) { | |
3944 | ||
3945 | umc = (megacmd_t __user *)uioc_mimd->mbox; | |
3946 | ||
3947 | if (get_user(upthru, (mega_passthru __user * __user *)&umc->xferaddr)) | |
3948 | return (-EFAULT); | |
3949 | ||
3950 | if( put_user(mc->status, (u8 __user *)&upthru->scsistatus) ) | |
3951 | return (-EFAULT); | |
3952 | } | |
3953 | } | |
3954 | ||
3955 | return 0; | |
3956 | } | |
3957 | ||
3958 | ||
3959 | /* | |
3960 | * MEGARAID 'FW' commands. | |
3961 | */ | |
3962 | ||
3963 | /** | |
3964 | * mega_is_bios_enabled() | |
3965 | * @adapter - pointer to our soft state | |
3966 | * | |
3967 | * issue command to find out if the BIOS is enabled for this controller | |
3968 | */ | |
3969 | static int | |
3970 | mega_is_bios_enabled(adapter_t *adapter) | |
3971 | { | |
3972 | unsigned char raw_mbox[sizeof(struct mbox_out)]; | |
3973 | mbox_t *mbox; | |
3974 | int ret; | |
3975 | ||
3976 | mbox = (mbox_t *)raw_mbox; | |
3977 | ||
3978 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); | |
3979 | ||
3980 | memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE); | |
3981 | ||
3982 | mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle; | |
3983 | ||
3984 | raw_mbox[0] = IS_BIOS_ENABLED; | |
3985 | raw_mbox[2] = GET_BIOS; | |
3986 | ||
3987 | ||
3988 | ret = issue_scb_block(adapter, raw_mbox); | |
3989 | ||
3990 | return *(char *)adapter->mega_buffer; | |
3991 | } | |
3992 | ||
3993 | ||
3994 | /** | |
3995 | * mega_enum_raid_scsi() | |
3996 | * @adapter - pointer to our soft state | |
3997 | * | |
3998 | * Find out what channels are RAID/SCSI. This information is used to | |
3999 | * differentiate the virtual channels and physical channels and to support | |
4000 | * ROMB feature and non-disk devices. | |
4001 | */ | |
4002 | static void | |
4003 | mega_enum_raid_scsi(adapter_t *adapter) | |
4004 | { | |
4005 | unsigned char raw_mbox[sizeof(struct mbox_out)]; | |
4006 | mbox_t *mbox; | |
4007 | int i; | |
4008 | ||
4009 | mbox = (mbox_t *)raw_mbox; | |
4010 | ||
4011 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); | |
4012 | ||
4013 | /* | |
4014 | * issue command to find out what channels are raid/scsi | |
4015 | */ | |
4016 | raw_mbox[0] = CHNL_CLASS; | |
4017 | raw_mbox[2] = GET_CHNL_CLASS; | |
4018 | ||
4019 | memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE); | |
4020 | ||
4021 | mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle; | |
4022 | ||
4023 | /* | |
4024 | * Non-ROMB firmware fail this command, so all channels | |
4025 | * must be shown RAID | |
4026 | */ | |
4027 | adapter->mega_ch_class = 0xFF; | |
4028 | ||
4029 | if(!issue_scb_block(adapter, raw_mbox)) { | |
4030 | adapter->mega_ch_class = *((char *)adapter->mega_buffer); | |
4031 | ||
4032 | } | |
4033 | ||
4034 | for( i = 0; i < adapter->product_info.nchannels; i++ ) { | |
4035 | if( (adapter->mega_ch_class >> i) & 0x01 ) { | |
4036 | printk(KERN_INFO "megaraid: channel[%d] is raid.\n", | |
4037 | i); | |
4038 | } | |
4039 | else { | |
4040 | printk(KERN_INFO "megaraid: channel[%d] is scsi.\n", | |
4041 | i); | |
4042 | } | |
4043 | } | |
4044 | ||
4045 | return; | |
4046 | } | |
4047 | ||
4048 | ||
4049 | /** | |
4050 | * mega_get_boot_drv() | |
4051 | * @adapter - pointer to our soft state | |
4052 | * | |
4053 | * Find out which device is the boot device. Note, any logical drive or any | |
4054 | * phyical device (e.g., a CDROM) can be designated as a boot device. | |
4055 | */ | |
4056 | static void | |
4057 | mega_get_boot_drv(adapter_t *adapter) | |
4058 | { | |
4059 | struct private_bios_data *prv_bios_data; | |
4060 | unsigned char raw_mbox[sizeof(struct mbox_out)]; | |
4061 | mbox_t *mbox; | |
4062 | u16 cksum = 0; | |
4063 | u8 *cksum_p; | |
4064 | u8 boot_pdrv; | |
4065 | int i; | |
4066 | ||
4067 | mbox = (mbox_t *)raw_mbox; | |
4068 | ||
4069 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); | |
4070 | ||
4071 | raw_mbox[0] = BIOS_PVT_DATA; | |
4072 | raw_mbox[2] = GET_BIOS_PVT_DATA; | |
4073 | ||
4074 | memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE); | |
4075 | ||
4076 | mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle; | |
4077 | ||
4078 | adapter->boot_ldrv_enabled = 0; | |
4079 | adapter->boot_ldrv = 0; | |
4080 | ||
4081 | adapter->boot_pdrv_enabled = 0; | |
4082 | adapter->boot_pdrv_ch = 0; | |
4083 | adapter->boot_pdrv_tgt = 0; | |
4084 | ||
4085 | if(issue_scb_block(adapter, raw_mbox) == 0) { | |
4086 | prv_bios_data = | |
4087 | (struct private_bios_data *)adapter->mega_buffer; | |
4088 | ||
4089 | cksum = 0; | |
4090 | cksum_p = (char *)prv_bios_data; | |
4091 | for (i = 0; i < 14; i++ ) { | |
4092 | cksum += (u16)(*cksum_p++); | |
4093 | } | |
4094 | ||
4095 | if (prv_bios_data->cksum == (u16)(0-cksum) ) { | |
4096 | ||
4097 | /* | |
4098 | * If MSB is set, a physical drive is set as boot | |
4099 | * device | |
4100 | */ | |
4101 | if( prv_bios_data->boot_drv & 0x80 ) { | |
4102 | adapter->boot_pdrv_enabled = 1; | |
4103 | boot_pdrv = prv_bios_data->boot_drv & 0x7F; | |
4104 | adapter->boot_pdrv_ch = boot_pdrv / 16; | |
4105 | adapter->boot_pdrv_tgt = boot_pdrv % 16; | |
4106 | } | |
4107 | else { | |
4108 | adapter->boot_ldrv_enabled = 1; | |
4109 | adapter->boot_ldrv = prv_bios_data->boot_drv; | |
4110 | } | |
4111 | } | |
4112 | } | |
4113 | ||
4114 | } | |
4115 | ||
4116 | /** | |
4117 | * mega_support_random_del() | |
4118 | * @adapter - pointer to our soft state | |
4119 | * | |
4120 | * Find out if this controller supports random deletion and addition of | |
4121 | * logical drives | |
4122 | */ | |
4123 | static int | |
4124 | mega_support_random_del(adapter_t *adapter) | |
4125 | { | |
4126 | unsigned char raw_mbox[sizeof(struct mbox_out)]; | |
4127 | mbox_t *mbox; | |
4128 | int rval; | |
4129 | ||
4130 | mbox = (mbox_t *)raw_mbox; | |
4131 | ||
4132 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); | |
4133 | ||
4134 | /* | |
4135 | * issue command | |
4136 | */ | |
4137 | raw_mbox[0] = FC_DEL_LOGDRV; | |
4138 | raw_mbox[2] = OP_SUP_DEL_LOGDRV; | |
4139 | ||
4140 | rval = issue_scb_block(adapter, raw_mbox); | |
4141 | ||
4142 | return !rval; | |
4143 | } | |
4144 | ||
4145 | ||
4146 | /** | |
4147 | * mega_support_ext_cdb() | |
4148 | * @adapter - pointer to our soft state | |
4149 | * | |
4150 | * Find out if this firmware support cdblen > 10 | |
4151 | */ | |
4152 | static int | |
4153 | mega_support_ext_cdb(adapter_t *adapter) | |
4154 | { | |
4155 | unsigned char raw_mbox[sizeof(struct mbox_out)]; | |
4156 | mbox_t *mbox; | |
4157 | int rval; | |
4158 | ||
4159 | mbox = (mbox_t *)raw_mbox; | |
4160 | ||
4161 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); | |
4162 | /* | |
4163 | * issue command to find out if controller supports extended CDBs. | |
4164 | */ | |
4165 | raw_mbox[0] = 0xA4; | |
4166 | raw_mbox[2] = 0x16; | |
4167 | ||
4168 | rval = issue_scb_block(adapter, raw_mbox); | |
4169 | ||
4170 | return !rval; | |
4171 | } | |
4172 | ||
4173 | ||
4174 | /** | |
4175 | * mega_del_logdrv() | |
4176 | * @adapter - pointer to our soft state | |
4177 | * @logdrv - logical drive to be deleted | |
4178 | * | |
4179 | * Delete the specified logical drive. It is the responsibility of the user | |
4180 | * app to let the OS know about this operation. | |
4181 | */ | |
4182 | static int | |
4183 | mega_del_logdrv(adapter_t *adapter, int logdrv) | |
4184 | { | |
4185 | unsigned long flags; | |
4186 | scb_t *scb; | |
4187 | int rval; | |
4188 | ||
4189 | /* | |
4190 | * Stop sending commands to the controller, queue them internally. | |
4191 | * When deletion is complete, ISR will flush the queue. | |
4192 | */ | |
4193 | atomic_set(&adapter->quiescent, 1); | |
4194 | ||
4195 | /* | |
4196 | * Wait till all the issued commands are complete and there are no | |
4197 | * commands in the pending queue | |
4198 | */ | |
4199 | while (atomic_read(&adapter->pend_cmds) > 0 || | |
4200 | !list_empty(&adapter->pending_list)) | |
4201 | msleep(1000); /* sleep for 1s */ | |
4202 | ||
4203 | rval = mega_do_del_logdrv(adapter, logdrv); | |
4204 | ||
4205 | spin_lock_irqsave(&adapter->lock, flags); | |
4206 | ||
4207 | /* | |
4208 | * If delete operation was successful, add 0x80 to the logical drive | |
4209 | * ids for commands in the pending queue. | |
4210 | */ | |
4211 | if (adapter->read_ldidmap) { | |
4212 | struct list_head *pos; | |
4213 | list_for_each(pos, &adapter->pending_list) { | |
4214 | scb = list_entry(pos, scb_t, list); | |
4215 | if (scb->pthru->logdrv < 0x80 ) | |
4216 | scb->pthru->logdrv += 0x80; | |
4217 | } | |
4218 | } | |
4219 | ||
4220 | atomic_set(&adapter->quiescent, 0); | |
4221 | ||
4222 | mega_runpendq(adapter); | |
4223 | ||
4224 | spin_unlock_irqrestore(&adapter->lock, flags); | |
4225 | ||
4226 | return rval; | |
4227 | } | |
4228 | ||
4229 | ||
4230 | static int | |
4231 | mega_do_del_logdrv(adapter_t *adapter, int logdrv) | |
4232 | { | |
4233 | megacmd_t mc; | |
4234 | int rval; | |
4235 | ||
4236 | memset( &mc, 0, sizeof(megacmd_t)); | |
4237 | ||
4238 | mc.cmd = FC_DEL_LOGDRV; | |
4239 | mc.opcode = OP_DEL_LOGDRV; | |
4240 | mc.subopcode = logdrv; | |
4241 | ||
cb0258a2 | 4242 | rval = mega_internal_command(adapter, &mc, NULL); |
1da177e4 LT |
4243 | |
4244 | /* log this event */ | |
4245 | if(rval) { | |
4246 | printk(KERN_WARNING "megaraid: Delete LD-%d failed.", logdrv); | |
4247 | return rval; | |
4248 | } | |
4249 | ||
4250 | /* | |
4251 | * After deleting first logical drive, the logical drives must be | |
4252 | * addressed by adding 0x80 to the logical drive id. | |
4253 | */ | |
4254 | adapter->read_ldidmap = 1; | |
4255 | ||
4256 | return rval; | |
4257 | } | |
4258 | ||
4259 | ||
4260 | /** | |
4261 | * mega_get_max_sgl() | |
4262 | * @adapter - pointer to our soft state | |
4263 | * | |
4264 | * Find out the maximum number of scatter-gather elements supported by this | |
4265 | * version of the firmware | |
4266 | */ | |
4267 | static void | |
4268 | mega_get_max_sgl(adapter_t *adapter) | |
4269 | { | |
4270 | unsigned char raw_mbox[sizeof(struct mbox_out)]; | |
4271 | mbox_t *mbox; | |
4272 | ||
4273 | mbox = (mbox_t *)raw_mbox; | |
4274 | ||
4275 | memset(mbox, 0, sizeof(raw_mbox)); | |
4276 | ||
4277 | memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE); | |
4278 | ||
4279 | mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle; | |
4280 | ||
4281 | raw_mbox[0] = MAIN_MISC_OPCODE; | |
4282 | raw_mbox[2] = GET_MAX_SG_SUPPORT; | |
4283 | ||
4284 | ||
4285 | if( issue_scb_block(adapter, raw_mbox) ) { | |
4286 | /* | |
4287 | * f/w does not support this command. Choose the default value | |
4288 | */ | |
4289 | adapter->sglen = MIN_SGLIST; | |
4290 | } | |
4291 | else { | |
4292 | adapter->sglen = *((char *)adapter->mega_buffer); | |
4293 | ||
4294 | /* | |
4295 | * Make sure this is not more than the resources we are | |
4296 | * planning to allocate | |
4297 | */ | |
4298 | if ( adapter->sglen > MAX_SGLIST ) | |
4299 | adapter->sglen = MAX_SGLIST; | |
4300 | } | |
4301 | ||
4302 | return; | |
4303 | } | |
4304 | ||
4305 | ||
4306 | /** | |
4307 | * mega_support_cluster() | |
4308 | * @adapter - pointer to our soft state | |
4309 | * | |
4310 | * Find out if this firmware support cluster calls. | |
4311 | */ | |
4312 | static int | |
4313 | mega_support_cluster(adapter_t *adapter) | |
4314 | { | |
4315 | unsigned char raw_mbox[sizeof(struct mbox_out)]; | |
4316 | mbox_t *mbox; | |
4317 | ||
4318 | mbox = (mbox_t *)raw_mbox; | |
4319 | ||
4320 | memset(mbox, 0, sizeof(raw_mbox)); | |
4321 | ||
4322 | memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE); | |
4323 | ||
4324 | mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle; | |
4325 | ||
4326 | /* | |
4327 | * Try to get the initiator id. This command will succeed iff the | |
4328 | * clustering is available on this HBA. | |
4329 | */ | |
4330 | raw_mbox[0] = MEGA_GET_TARGET_ID; | |
4331 | ||
4332 | if( issue_scb_block(adapter, raw_mbox) == 0 ) { | |
4333 | ||
4334 | /* | |
4335 | * Cluster support available. Get the initiator target id. | |
4336 | * Tell our id to mid-layer too. | |
4337 | */ | |
4338 | adapter->this_id = *(u32 *)adapter->mega_buffer; | |
4339 | adapter->host->this_id = adapter->this_id; | |
4340 | ||
4341 | return 1; | |
4342 | } | |
4343 | ||
4344 | return 0; | |
4345 | } | |
4346 | ||
4347 | ||
4348 | /** | |
4349 | * mega_adapinq() | |
4350 | * @adapter - pointer to our soft state | |
4351 | * @dma_handle - DMA address of the buffer | |
4352 | * | |
4353 | * Issue internal comamnds while interrupts are available. | |
4354 | * We only issue direct mailbox commands from within the driver. ioctl() | |
4355 | * interface using these routines can issue passthru commands. | |
4356 | */ | |
4357 | static int | |
4358 | mega_adapinq(adapter_t *adapter, dma_addr_t dma_handle) | |
4359 | { | |
4360 | megacmd_t mc; | |
4361 | ||
4362 | memset(&mc, 0, sizeof(megacmd_t)); | |
4363 | ||
4364 | if( adapter->flag & BOARD_40LD ) { | |
4365 | mc.cmd = FC_NEW_CONFIG; | |
4366 | mc.opcode = NC_SUBOP_ENQUIRY3; | |
4367 | mc.subopcode = ENQ3_GET_SOLICITED_FULL; | |
4368 | } | |
4369 | else { | |
4370 | mc.cmd = MEGA_MBOXCMD_ADPEXTINQ; | |
4371 | } | |
4372 | ||
4373 | mc.xferaddr = (u32)dma_handle; | |
4374 | ||
cb0258a2 | 4375 | if ( mega_internal_command(adapter, &mc, NULL) != 0 ) { |
1da177e4 LT |
4376 | return -1; |
4377 | } | |
4378 | ||
4379 | return 0; | |
4380 | } | |
4381 | ||
4382 | ||
4383 | /** mega_internal_dev_inquiry() | |
4384 | * @adapter - pointer to our soft state | |
4385 | * @ch - channel for this device | |
4386 | * @tgt - ID of this device | |
4387 | * @buf_dma_handle - DMA address of the buffer | |
4388 | * | |
4389 | * Issue the scsi inquiry for the specified device. | |
4390 | */ | |
4391 | static int | |
4392 | mega_internal_dev_inquiry(adapter_t *adapter, u8 ch, u8 tgt, | |
4393 | dma_addr_t buf_dma_handle) | |
4394 | { | |
4395 | mega_passthru *pthru; | |
4396 | dma_addr_t pthru_dma_handle; | |
4397 | megacmd_t mc; | |
4398 | int rval; | |
4399 | struct pci_dev *pdev; | |
4400 | ||
4401 | ||
4402 | /* | |
4403 | * For all internal commands, the buffer must be allocated in <4GB | |
4404 | * address range | |
4405 | */ | |
4406 | if( make_local_pdev(adapter, &pdev) != 0 ) return -1; | |
4407 | ||
4408 | pthru = pci_alloc_consistent(pdev, sizeof(mega_passthru), | |
4409 | &pthru_dma_handle); | |
4410 | ||
4411 | if( pthru == NULL ) { | |
4412 | free_local_pdev(pdev); | |
4413 | return -1; | |
4414 | } | |
4415 | ||
4416 | pthru->timeout = 2; | |
4417 | pthru->ars = 1; | |
4418 | pthru->reqsenselen = 14; | |
4419 | pthru->islogical = 0; | |
4420 | ||
4421 | pthru->channel = (adapter->flag & BOARD_40LD) ? 0 : ch; | |
4422 | ||
4423 | pthru->target = (adapter->flag & BOARD_40LD) ? (ch << 4)|tgt : tgt; | |
4424 | ||
4425 | pthru->cdblen = 6; | |
4426 | ||
4427 | pthru->cdb[0] = INQUIRY; | |
4428 | pthru->cdb[1] = 0; | |
4429 | pthru->cdb[2] = 0; | |
4430 | pthru->cdb[3] = 0; | |
4431 | pthru->cdb[4] = 255; | |
4432 | pthru->cdb[5] = 0; | |
4433 | ||
4434 | ||
4435 | pthru->dataxferaddr = (u32)buf_dma_handle; | |
4436 | pthru->dataxferlen = 256; | |
4437 | ||
4438 | memset(&mc, 0, sizeof(megacmd_t)); | |
4439 | ||
4440 | mc.cmd = MEGA_MBOXCMD_PASSTHRU; | |
4441 | mc.xferaddr = (u32)pthru_dma_handle; | |
4442 | ||
cb0258a2 | 4443 | rval = mega_internal_command(adapter, &mc, pthru); |
1da177e4 LT |
4444 | |
4445 | pci_free_consistent(pdev, sizeof(mega_passthru), pthru, | |
4446 | pthru_dma_handle); | |
4447 | ||
4448 | free_local_pdev(pdev); | |
4449 | ||
4450 | return rval; | |
4451 | } | |
4452 | ||
4453 | ||
4454 | /** | |
4455 | * mega_internal_command() | |
4456 | * @adapter - pointer to our soft state | |
1da177e4 LT |
4457 | * @mc - the mailbox command |
4458 | * @pthru - Passthru structure for DCDB commands | |
4459 | * | |
4460 | * Issue the internal commands in interrupt mode. | |
4461 | * The last argument is the address of the passthru structure if the command | |
4462 | * to be fired is a passthru command | |
4463 | * | |
4464 | * lockscope specifies whether the caller has already acquired the lock. Of | |
4465 | * course, the caller must know which lock we are talking about. | |
4466 | * | |
4467 | * Note: parameter 'pthru' is null for non-passthru commands. | |
4468 | */ | |
4469 | static int | |
cb0258a2 | 4470 | mega_internal_command(adapter_t *adapter, megacmd_t *mc, mega_passthru *pthru) |
1da177e4 LT |
4471 | { |
4472 | Scsi_Cmnd *scmd; | |
4473 | struct scsi_device *sdev; | |
1da177e4 LT |
4474 | scb_t *scb; |
4475 | int rval; | |
4476 | ||
4477 | /* | |
4478 | * The internal commands share one command id and hence are | |
4479 | * serialized. This is so because we want to reserve maximum number of | |
4480 | * available command ids for the I/O commands. | |
4481 | */ | |
0b950672 | 4482 | mutex_lock(&adapter->int_mtx); |
1da177e4 LT |
4483 | |
4484 | scb = &adapter->int_scb; | |
4485 | memset(scb, 0, sizeof(scb_t)); | |
4486 | ||
4487 | scmd = &adapter->int_scmd; | |
4488 | memset(scmd, 0, sizeof(Scsi_Cmnd)); | |
4489 | ||
4490 | sdev = kmalloc(sizeof(struct scsi_device), GFP_KERNEL); | |
4491 | memset(sdev, 0, sizeof(struct scsi_device)); | |
4492 | scmd->device = sdev; | |
4493 | ||
4494 | scmd->device->host = adapter->host; | |
5d5ff44f | 4495 | scmd->request_buffer = (void *)scb; |
1da177e4 LT |
4496 | scmd->cmnd[0] = MEGA_INTERNAL_CMD; |
4497 | ||
4498 | scb->state |= SCB_ACTIVE; | |
4499 | scb->cmd = scmd; | |
4500 | ||
4501 | memcpy(scb->raw_mbox, mc, sizeof(megacmd_t)); | |
4502 | ||
4503 | /* | |
4504 | * Is it a passthru command | |
4505 | */ | |
4506 | if( mc->cmd == MEGA_MBOXCMD_PASSTHRU ) { | |
4507 | ||
4508 | scb->pthru = pthru; | |
4509 | } | |
4510 | ||
4511 | scb->idx = CMDID_INT_CMDS; | |
4512 | ||
1da177e4 LT |
4513 | megaraid_queue(scmd, mega_internal_done); |
4514 | ||
8d115f84 | 4515 | wait_for_completion(&adapter->int_waitq); |
1da177e4 LT |
4516 | |
4517 | rval = scmd->result; | |
4518 | mc->status = scmd->result; | |
4519 | kfree(sdev); | |
4520 | ||
4521 | /* | |
4522 | * Print a debug message for all failed commands. Applications can use | |
4523 | * this information. | |
4524 | */ | |
4525 | if( scmd->result && trace_level ) { | |
4526 | printk("megaraid: cmd [%x, %x, %x] status:[%x]\n", | |
4527 | mc->cmd, mc->opcode, mc->subopcode, scmd->result); | |
4528 | } | |
4529 | ||
0b950672 | 4530 | mutex_unlock(&adapter->int_mtx); |
1da177e4 LT |
4531 | |
4532 | return rval; | |
4533 | } | |
4534 | ||
4535 | ||
4536 | /** | |
4537 | * mega_internal_done() | |
4538 | * @scmd - internal scsi command | |
4539 | * | |
4540 | * Callback routine for internal commands. | |
4541 | */ | |
4542 | static void | |
4543 | mega_internal_done(Scsi_Cmnd *scmd) | |
4544 | { | |
4545 | adapter_t *adapter; | |
4546 | ||
4547 | adapter = (adapter_t *)scmd->device->host->hostdata; | |
4548 | ||
8d115f84 | 4549 | complete(&adapter->int_waitq); |
1da177e4 LT |
4550 | |
4551 | } | |
4552 | ||
4553 | ||
4554 | static struct scsi_host_template megaraid_template = { | |
4555 | .module = THIS_MODULE, | |
4556 | .name = "MegaRAID", | |
3492b328 | 4557 | .proc_name = "megaraid_legacy", |
1da177e4 LT |
4558 | .info = megaraid_info, |
4559 | .queuecommand = megaraid_queue, | |
4560 | .bios_param = megaraid_biosparam, | |
4561 | .max_sectors = MAX_SECTORS_PER_IO, | |
4562 | .can_queue = MAX_COMMANDS, | |
4563 | .this_id = DEFAULT_INITIATOR_ID, | |
4564 | .sg_tablesize = MAX_SGLIST, | |
4565 | .cmd_per_lun = DEF_CMD_PER_LUN, | |
4566 | .use_clustering = ENABLE_CLUSTERING, | |
4567 | .eh_abort_handler = megaraid_abort, | |
4568 | .eh_device_reset_handler = megaraid_reset, | |
4569 | .eh_bus_reset_handler = megaraid_reset, | |
4570 | .eh_host_reset_handler = megaraid_reset, | |
4571 | }; | |
4572 | ||
4573 | static int __devinit | |
4574 | megaraid_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) | |
4575 | { | |
4576 | struct Scsi_Host *host; | |
4577 | adapter_t *adapter; | |
4578 | unsigned long mega_baseport, tbase, flag = 0; | |
4579 | u16 subsysid, subsysvid; | |
4580 | u8 pci_bus, pci_dev_func; | |
4581 | int irq, i, j; | |
4582 | int error = -ENODEV; | |
4583 | ||
4584 | if (pci_enable_device(pdev)) | |
4585 | goto out; | |
4586 | pci_set_master(pdev); | |
4587 | ||
4588 | pci_bus = pdev->bus->number; | |
4589 | pci_dev_func = pdev->devfn; | |
4590 | ||
4591 | /* | |
4592 | * The megaraid3 stuff reports the ID of the Intel part which is not | |
4593 | * remotely specific to the megaraid | |
4594 | */ | |
4595 | if (pdev->vendor == PCI_VENDOR_ID_INTEL) { | |
4596 | u16 magic; | |
4597 | /* | |
4598 | * Don't fall over the Compaq management cards using the same | |
4599 | * PCI identifier | |
4600 | */ | |
4601 | if (pdev->subsystem_vendor == PCI_VENDOR_ID_COMPAQ && | |
4602 | pdev->subsystem_device == 0xC000) | |
4603 | return -ENODEV; | |
4604 | /* Now check the magic signature byte */ | |
4605 | pci_read_config_word(pdev, PCI_CONF_AMISIG, &magic); | |
4606 | if (magic != HBA_SIGNATURE_471 && magic != HBA_SIGNATURE) | |
4607 | return -ENODEV; | |
4608 | /* Ok it is probably a megaraid */ | |
4609 | } | |
4610 | ||
4611 | /* | |
4612 | * For these vendor and device ids, signature offsets are not | |
4613 | * valid and 64 bit is implicit | |
4614 | */ | |
4615 | if (id->driver_data & BOARD_64BIT) | |
4616 | flag |= BOARD_64BIT; | |
4617 | else { | |
4618 | u32 magic64; | |
4619 | ||
4620 | pci_read_config_dword(pdev, PCI_CONF_AMISIG64, &magic64); | |
4621 | if (magic64 == HBA_SIGNATURE_64BIT) | |
4622 | flag |= BOARD_64BIT; | |
4623 | } | |
4624 | ||
4625 | subsysvid = pdev->subsystem_vendor; | |
4626 | subsysid = pdev->subsystem_device; | |
4627 | ||
4628 | printk(KERN_NOTICE "megaraid: found 0x%4.04x:0x%4.04x:bus %d:", | |
4629 | id->vendor, id->device, pci_bus); | |
4630 | ||
4631 | printk("slot %d:func %d\n", | |
4632 | PCI_SLOT(pci_dev_func), PCI_FUNC(pci_dev_func)); | |
4633 | ||
4634 | /* Read the base port and IRQ from PCI */ | |
4635 | mega_baseport = pci_resource_start(pdev, 0); | |
4636 | irq = pdev->irq; | |
4637 | ||
4638 | tbase = mega_baseport; | |
4639 | if (pci_resource_flags(pdev, 0) & IORESOURCE_MEM) { | |
4640 | flag |= BOARD_MEMMAP; | |
4641 | ||
4642 | if (!request_mem_region(mega_baseport, 128, "megaraid")) { | |
4643 | printk(KERN_WARNING "megaraid: mem region busy!\n"); | |
4644 | goto out_disable_device; | |
4645 | } | |
4646 | ||
4647 | mega_baseport = (unsigned long)ioremap(mega_baseport, 128); | |
4648 | if (!mega_baseport) { | |
4649 | printk(KERN_WARNING | |
4650 | "megaraid: could not map hba memory\n"); | |
4651 | goto out_release_region; | |
4652 | } | |
4653 | } else { | |
4654 | flag |= BOARD_IOMAP; | |
4655 | mega_baseport += 0x10; | |
4656 | ||
4657 | if (!request_region(mega_baseport, 16, "megaraid")) | |
4658 | goto out_disable_device; | |
4659 | } | |
4660 | ||
4661 | /* Initialize SCSI Host structure */ | |
4662 | host = scsi_host_alloc(&megaraid_template, sizeof(adapter_t)); | |
4663 | if (!host) | |
4664 | goto out_iounmap; | |
4665 | ||
4666 | adapter = (adapter_t *)host->hostdata; | |
4667 | memset(adapter, 0, sizeof(adapter_t)); | |
4668 | ||
4669 | printk(KERN_NOTICE | |
4670 | "scsi%d:Found MegaRAID controller at 0x%lx, IRQ:%d\n", | |
4671 | host->host_no, mega_baseport, irq); | |
4672 | ||
4673 | adapter->base = mega_baseport; | |
4674 | ||
4675 | INIT_LIST_HEAD(&adapter->free_list); | |
4676 | INIT_LIST_HEAD(&adapter->pending_list); | |
4677 | INIT_LIST_HEAD(&adapter->completed_list); | |
4678 | ||
4679 | adapter->flag = flag; | |
4680 | spin_lock_init(&adapter->lock); | |
1da177e4 LT |
4681 | |
4682 | host->cmd_per_lun = max_cmd_per_lun; | |
4683 | host->max_sectors = max_sectors_per_io; | |
4684 | ||
4685 | adapter->dev = pdev; | |
4686 | adapter->host = host; | |
4687 | ||
4688 | adapter->host->irq = irq; | |
4689 | ||
4690 | if (flag & BOARD_MEMMAP) | |
4691 | adapter->host->base = tbase; | |
4692 | else { | |
4693 | adapter->host->io_port = tbase; | |
4694 | adapter->host->n_io_port = 16; | |
4695 | } | |
4696 | ||
4697 | adapter->host->unique_id = (pci_bus << 8) | pci_dev_func; | |
4698 | ||
4699 | /* | |
4700 | * Allocate buffer to issue internal commands. | |
4701 | */ | |
4702 | adapter->mega_buffer = pci_alloc_consistent(adapter->dev, | |
4703 | MEGA_BUFFER_SIZE, &adapter->buf_dma_handle); | |
4704 | if (!adapter->mega_buffer) { | |
4705 | printk(KERN_WARNING "megaraid: out of RAM.\n"); | |
4706 | goto out_host_put; | |
4707 | } | |
4708 | ||
4709 | adapter->scb_list = kmalloc(sizeof(scb_t) * MAX_COMMANDS, GFP_KERNEL); | |
4710 | if (!adapter->scb_list) { | |
4711 | printk(KERN_WARNING "megaraid: out of RAM.\n"); | |
4712 | goto out_free_cmd_buffer; | |
4713 | } | |
4714 | ||
4715 | if (request_irq(irq, (adapter->flag & BOARD_MEMMAP) ? | |
4716 | megaraid_isr_memmapped : megaraid_isr_iomapped, | |
1d6f359a | 4717 | IRQF_SHARED, "megaraid", adapter)) { |
1da177e4 LT |
4718 | printk(KERN_WARNING |
4719 | "megaraid: Couldn't register IRQ %d!\n", irq); | |
4720 | goto out_free_scb_list; | |
4721 | } | |
4722 | ||
4723 | if (mega_setup_mailbox(adapter)) | |
4724 | goto out_free_irq; | |
4725 | ||
4726 | if (mega_query_adapter(adapter)) | |
4727 | goto out_free_mbox; | |
4728 | ||
4729 | /* | |
4730 | * Have checks for some buggy f/w | |
4731 | */ | |
4732 | if ((subsysid == 0x1111) && (subsysvid == 0x1111)) { | |
4733 | /* | |
4734 | * Which firmware | |
4735 | */ | |
4736 | if (!strcmp(adapter->fw_version, "3.00") || | |
4737 | !strcmp(adapter->fw_version, "3.01")) { | |
4738 | ||
4739 | printk( KERN_WARNING | |
4740 | "megaraid: Your card is a Dell PERC " | |
4741 | "2/SC RAID controller with " | |
4742 | "firmware\nmegaraid: 3.00 or 3.01. " | |
4743 | "This driver is known to have " | |
4744 | "corruption issues\nmegaraid: with " | |
4745 | "those firmware versions on this " | |
4746 | "specific card. In order\nmegaraid: " | |
4747 | "to protect your data, please upgrade " | |
4748 | "your firmware to version\nmegaraid: " | |
4749 | "3.10 or later, available from the " | |
4750 | "Dell Technical Support web\n" | |
4751 | "megaraid: site at\nhttp://support." | |
4752 | "dell.com/us/en/filelib/download/" | |
4753 | "index.asp?fileid=2940\n" | |
4754 | ); | |
4755 | } | |
4756 | } | |
4757 | ||
4758 | /* | |
4759 | * If we have a HP 1M(0x60E7)/2M(0x60E8) controller with | |
4760 | * firmware H.01.07, H.01.08, and H.01.09 disable 64 bit | |
4761 | * support, since this firmware cannot handle 64 bit | |
4762 | * addressing | |
4763 | */ | |
4764 | if ((subsysvid == HP_SUBSYS_VID) && | |
4765 | ((subsysid == 0x60E7) || (subsysid == 0x60E8))) { | |
4766 | /* | |
4767 | * which firmware | |
4768 | */ | |
4769 | if (!strcmp(adapter->fw_version, "H01.07") || | |
4770 | !strcmp(adapter->fw_version, "H01.08") || | |
4771 | !strcmp(adapter->fw_version, "H01.09") ) { | |
4772 | printk(KERN_WARNING | |
4773 | "megaraid: Firmware H.01.07, " | |
4774 | "H.01.08, and H.01.09 on 1M/2M " | |
4775 | "controllers\n" | |
4776 | "megaraid: do not support 64 bit " | |
4777 | "addressing.\nmegaraid: DISABLING " | |
4778 | "64 bit support.\n"); | |
4779 | adapter->flag &= ~BOARD_64BIT; | |
4780 | } | |
4781 | } | |
4782 | ||
4783 | if (mega_is_bios_enabled(adapter)) | |
4784 | mega_hbas[hba_count].is_bios_enabled = 1; | |
4785 | mega_hbas[hba_count].hostdata_addr = adapter; | |
4786 | ||
4787 | /* | |
4788 | * Find out which channel is raid and which is scsi. This is | |
4789 | * for ROMB support. | |
4790 | */ | |
4791 | mega_enum_raid_scsi(adapter); | |
4792 | ||
4793 | /* | |
4794 | * Find out if a logical drive is set as the boot drive. If | |
4795 | * there is one, will make that as the first logical drive. | |
4796 | * ROMB: Do we have to boot from a physical drive. Then all | |
4797 | * the physical drives would appear before the logical disks. | |
4798 | * Else, all the physical drives would be exported to the mid | |
4799 | * layer after logical drives. | |
4800 | */ | |
4801 | mega_get_boot_drv(adapter); | |
4802 | ||
4803 | if (adapter->boot_pdrv_enabled) { | |
4804 | j = adapter->product_info.nchannels; | |
4805 | for( i = 0; i < j; i++ ) | |
4806 | adapter->logdrv_chan[i] = 0; | |
4807 | for( i = j; i < NVIRT_CHAN + j; i++ ) | |
4808 | adapter->logdrv_chan[i] = 1; | |
4809 | } else { | |
4810 | for (i = 0; i < NVIRT_CHAN; i++) | |
4811 | adapter->logdrv_chan[i] = 1; | |
4812 | for (i = NVIRT_CHAN; i < MAX_CHANNELS+NVIRT_CHAN; i++) | |
4813 | adapter->logdrv_chan[i] = 0; | |
4814 | adapter->mega_ch_class <<= NVIRT_CHAN; | |
4815 | } | |
4816 | ||
4817 | /* | |
4818 | * Do we support random deletion and addition of logical | |
4819 | * drives | |
4820 | */ | |
4821 | adapter->read_ldidmap = 0; /* set it after first logdrv | |
4822 | delete cmd */ | |
4823 | adapter->support_random_del = mega_support_random_del(adapter); | |
4824 | ||
4825 | /* Initialize SCBs */ | |
4826 | if (mega_init_scb(adapter)) | |
4827 | goto out_free_mbox; | |
4828 | ||
4829 | /* | |
4830 | * Reset the pending commands counter | |
4831 | */ | |
4832 | atomic_set(&adapter->pend_cmds, 0); | |
4833 | ||
4834 | /* | |
4835 | * Reset the adapter quiescent flag | |
4836 | */ | |
4837 | atomic_set(&adapter->quiescent, 0); | |
4838 | ||
4839 | hba_soft_state[hba_count] = adapter; | |
4840 | ||
4841 | /* | |
4842 | * Fill in the structure which needs to be passed back to the | |
4843 | * application when it does an ioctl() for controller related | |
4844 | * information. | |
4845 | */ | |
4846 | i = hba_count; | |
4847 | ||
4848 | mcontroller[i].base = mega_baseport; | |
4849 | mcontroller[i].irq = irq; | |
4850 | mcontroller[i].numldrv = adapter->numldrv; | |
4851 | mcontroller[i].pcibus = pci_bus; | |
4852 | mcontroller[i].pcidev = id->device; | |
4853 | mcontroller[i].pcifun = PCI_FUNC (pci_dev_func); | |
4854 | mcontroller[i].pciid = -1; | |
4855 | mcontroller[i].pcivendor = id->vendor; | |
4856 | mcontroller[i].pcislot = PCI_SLOT(pci_dev_func); | |
4857 | mcontroller[i].uid = (pci_bus << 8) | pci_dev_func; | |
4858 | ||
4859 | ||
4860 | /* Set the Mode of addressing to 64 bit if we can */ | |
4861 | if ((adapter->flag & BOARD_64BIT) && (sizeof(dma_addr_t) == 8)) { | |
910638ae | 4862 | pci_set_dma_mask(pdev, DMA_64BIT_MASK); |
1da177e4 LT |
4863 | adapter->has_64bit_addr = 1; |
4864 | } else { | |
910638ae | 4865 | pci_set_dma_mask(pdev, DMA_32BIT_MASK); |
1da177e4 LT |
4866 | adapter->has_64bit_addr = 0; |
4867 | } | |
4868 | ||
0b950672 | 4869 | mutex_init(&adapter->int_mtx); |
8d115f84 | 4870 | init_completion(&adapter->int_waitq); |
1da177e4 LT |
4871 | |
4872 | adapter->this_id = DEFAULT_INITIATOR_ID; | |
4873 | adapter->host->this_id = DEFAULT_INITIATOR_ID; | |
4874 | ||
4875 | #if MEGA_HAVE_CLUSTERING | |
4876 | /* | |
4877 | * Is cluster support enabled on this controller | |
4878 | * Note: In a cluster the HBAs ( the initiators ) will have | |
4879 | * different target IDs and we cannot assume it to be 7. Call | |
4880 | * to mega_support_cluster() will get the target ids also if | |
4881 | * the cluster support is available | |
4882 | */ | |
4883 | adapter->has_cluster = mega_support_cluster(adapter); | |
4884 | if (adapter->has_cluster) { | |
4885 | printk(KERN_NOTICE | |
4886 | "megaraid: Cluster driver, initiator id:%d\n", | |
4887 | adapter->this_id); | |
4888 | } | |
4889 | #endif | |
4890 | ||
4891 | pci_set_drvdata(pdev, host); | |
4892 | ||
4893 | mega_create_proc_entry(hba_count, mega_proc_dir_entry); | |
4894 | ||
4895 | error = scsi_add_host(host, &pdev->dev); | |
4896 | if (error) | |
4897 | goto out_free_mbox; | |
4898 | ||
4899 | scsi_scan_host(host); | |
4900 | hba_count++; | |
4901 | return 0; | |
4902 | ||
4903 | out_free_mbox: | |
4904 | pci_free_consistent(adapter->dev, sizeof(mbox64_t), | |
4905 | adapter->una_mbox64, adapter->una_mbox64_dma); | |
4906 | out_free_irq: | |
4907 | free_irq(adapter->host->irq, adapter); | |
4908 | out_free_scb_list: | |
4909 | kfree(adapter->scb_list); | |
4910 | out_free_cmd_buffer: | |
4911 | pci_free_consistent(adapter->dev, MEGA_BUFFER_SIZE, | |
4912 | adapter->mega_buffer, adapter->buf_dma_handle); | |
4913 | out_host_put: | |
4914 | scsi_host_put(host); | |
4915 | out_iounmap: | |
4916 | if (flag & BOARD_MEMMAP) | |
4917 | iounmap((void *)mega_baseport); | |
4918 | out_release_region: | |
4919 | if (flag & BOARD_MEMMAP) | |
4920 | release_mem_region(tbase, 128); | |
4921 | else | |
4922 | release_region(mega_baseport, 16); | |
4923 | out_disable_device: | |
4924 | pci_disable_device(pdev); | |
4925 | out: | |
4926 | return error; | |
4927 | } | |
4928 | ||
4929 | static void | |
4930 | __megaraid_shutdown(adapter_t *adapter) | |
4931 | { | |
4932 | u_char raw_mbox[sizeof(struct mbox_out)]; | |
4933 | mbox_t *mbox = (mbox_t *)raw_mbox; | |
4934 | int i; | |
4935 | ||
4936 | /* Flush adapter cache */ | |
4937 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); | |
4938 | raw_mbox[0] = FLUSH_ADAPTER; | |
4939 | ||
4940 | free_irq(adapter->host->irq, adapter); | |
4941 | ||
4942 | /* Issue a blocking (interrupts disabled) command to the card */ | |
4943 | issue_scb_block(adapter, raw_mbox); | |
4944 | ||
4945 | /* Flush disks cache */ | |
4946 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); | |
4947 | raw_mbox[0] = FLUSH_SYSTEM; | |
4948 | ||
4949 | /* Issue a blocking (interrupts disabled) command to the card */ | |
4950 | issue_scb_block(adapter, raw_mbox); | |
4951 | ||
4952 | if (atomic_read(&adapter->pend_cmds) > 0) | |
4953 | printk(KERN_WARNING "megaraid: pending commands!!\n"); | |
4954 | ||
4955 | /* | |
4956 | * Have a delibrate delay to make sure all the caches are | |
4957 | * actually flushed. | |
4958 | */ | |
4959 | for (i = 0; i <= 10; i++) | |
4960 | mdelay(1000); | |
4961 | } | |
4962 | ||
4963 | static void | |
4964 | megaraid_remove_one(struct pci_dev *pdev) | |
4965 | { | |
4966 | struct Scsi_Host *host = pci_get_drvdata(pdev); | |
4967 | adapter_t *adapter = (adapter_t *)host->hostdata; | |
4968 | char buf[12] = { 0 }; | |
4969 | ||
4970 | scsi_remove_host(host); | |
4971 | ||
4972 | __megaraid_shutdown(adapter); | |
4973 | ||
4974 | /* Free our resources */ | |
4975 | if (adapter->flag & BOARD_MEMMAP) { | |
4976 | iounmap((void *)adapter->base); | |
4977 | release_mem_region(adapter->host->base, 128); | |
4978 | } else | |
4979 | release_region(adapter->base, 16); | |
4980 | ||
4981 | mega_free_sgl(adapter); | |
4982 | ||
4983 | #ifdef CONFIG_PROC_FS | |
4984 | if (adapter->controller_proc_dir_entry) { | |
4985 | remove_proc_entry("stat", adapter->controller_proc_dir_entry); | |
4986 | remove_proc_entry("config", | |
4987 | adapter->controller_proc_dir_entry); | |
4988 | remove_proc_entry("mailbox", | |
4989 | adapter->controller_proc_dir_entry); | |
4990 | #if MEGA_HAVE_ENH_PROC | |
4991 | remove_proc_entry("rebuild-rate", | |
4992 | adapter->controller_proc_dir_entry); | |
4993 | remove_proc_entry("battery-status", | |
4994 | adapter->controller_proc_dir_entry); | |
4995 | ||
4996 | remove_proc_entry("diskdrives-ch0", | |
4997 | adapter->controller_proc_dir_entry); | |
4998 | remove_proc_entry("diskdrives-ch1", | |
4999 | adapter->controller_proc_dir_entry); | |
5000 | remove_proc_entry("diskdrives-ch2", | |
5001 | adapter->controller_proc_dir_entry); | |
5002 | remove_proc_entry("diskdrives-ch3", | |
5003 | adapter->controller_proc_dir_entry); | |
5004 | ||
5005 | remove_proc_entry("raiddrives-0-9", | |
5006 | adapter->controller_proc_dir_entry); | |
5007 | remove_proc_entry("raiddrives-10-19", | |
5008 | adapter->controller_proc_dir_entry); | |
5009 | remove_proc_entry("raiddrives-20-29", | |
5010 | adapter->controller_proc_dir_entry); | |
5011 | remove_proc_entry("raiddrives-30-39", | |
5012 | adapter->controller_proc_dir_entry); | |
5013 | #endif | |
5014 | sprintf(buf, "hba%d", adapter->host->host_no); | |
5015 | remove_proc_entry(buf, mega_proc_dir_entry); | |
5016 | } | |
5017 | #endif | |
5018 | ||
5019 | pci_free_consistent(adapter->dev, MEGA_BUFFER_SIZE, | |
5020 | adapter->mega_buffer, adapter->buf_dma_handle); | |
5021 | kfree(adapter->scb_list); | |
5022 | pci_free_consistent(adapter->dev, sizeof(mbox64_t), | |
5023 | adapter->una_mbox64, adapter->una_mbox64_dma); | |
5024 | ||
5025 | scsi_host_put(host); | |
5026 | pci_disable_device(pdev); | |
5027 | ||
5028 | hba_count--; | |
5029 | } | |
5030 | ||
5031 | static void | |
d18c3db5 | 5032 | megaraid_shutdown(struct pci_dev *pdev) |
1da177e4 | 5033 | { |
d18c3db5 | 5034 | struct Scsi_Host *host = pci_get_drvdata(pdev); |
1da177e4 LT |
5035 | adapter_t *adapter = (adapter_t *)host->hostdata; |
5036 | ||
5037 | __megaraid_shutdown(adapter); | |
5038 | } | |
5039 | ||
5040 | static struct pci_device_id megaraid_pci_tbl[] = { | |
1da177e4 LT |
5041 | {PCI_VENDOR_ID_AMI, PCI_DEVICE_ID_AMI_MEGARAID, |
5042 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, | |
5043 | {PCI_VENDOR_ID_AMI, PCI_DEVICE_ID_AMI_MEGARAID2, | |
5044 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, | |
1da177e4 LT |
5045 | {PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_AMI_MEGARAID3, |
5046 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, | |
1da177e4 LT |
5047 | {0,} |
5048 | }; | |
5049 | MODULE_DEVICE_TABLE(pci, megaraid_pci_tbl); | |
5050 | ||
5051 | static struct pci_driver megaraid_pci_driver = { | |
3542adcb | 5052 | .name = "megaraid_legacy", |
1da177e4 LT |
5053 | .id_table = megaraid_pci_tbl, |
5054 | .probe = megaraid_probe_one, | |
5055 | .remove = __devexit_p(megaraid_remove_one), | |
d18c3db5 | 5056 | .shutdown = megaraid_shutdown, |
1da177e4 LT |
5057 | }; |
5058 | ||
5059 | static int __init megaraid_init(void) | |
5060 | { | |
5061 | int error; | |
5062 | ||
5063 | if ((max_cmd_per_lun <= 0) || (max_cmd_per_lun > MAX_CMD_PER_LUN)) | |
5064 | max_cmd_per_lun = MAX_CMD_PER_LUN; | |
5065 | if (max_mbox_busy_wait > MBOX_BUSY_WAIT) | |
5066 | max_mbox_busy_wait = MBOX_BUSY_WAIT; | |
5067 | ||
5068 | #ifdef CONFIG_PROC_FS | |
5069 | mega_proc_dir_entry = proc_mkdir("megaraid", &proc_root); | |
5070 | if (!mega_proc_dir_entry) { | |
5071 | printk(KERN_WARNING | |
5072 | "megaraid: failed to create megaraid root\n"); | |
5073 | } | |
5074 | #endif | |
5075 | error = pci_module_init(&megaraid_pci_driver); | |
5076 | if (error) { | |
5077 | #ifdef CONFIG_PROC_FS | |
5078 | remove_proc_entry("megaraid", &proc_root); | |
5079 | #endif | |
5080 | return error; | |
5081 | } | |
5082 | ||
5083 | /* | |
5084 | * Register the driver as a character device, for applications | |
5085 | * to access it for ioctls. | |
5086 | * First argument (major) to register_chrdev implies a dynamic | |
5087 | * major number allocation. | |
5088 | */ | |
3492b328 | 5089 | major = register_chrdev(0, "megadev_legacy", &megadev_fops); |
1da177e4 LT |
5090 | if (!major) { |
5091 | printk(KERN_WARNING | |
5092 | "megaraid: failed to register char device\n"); | |
5093 | } | |
5094 | ||
5095 | return 0; | |
5096 | } | |
5097 | ||
5098 | static void __exit megaraid_exit(void) | |
5099 | { | |
5100 | /* | |
5101 | * Unregister the character device interface to the driver. | |
5102 | */ | |
3492b328 | 5103 | unregister_chrdev(major, "megadev_legacy"); |
1da177e4 LT |
5104 | |
5105 | pci_unregister_driver(&megaraid_pci_driver); | |
5106 | ||
5107 | #ifdef CONFIG_PROC_FS | |
5108 | remove_proc_entry("megaraid", &proc_root); | |
5109 | #endif | |
5110 | } | |
5111 | ||
5112 | module_init(megaraid_init); | |
5113 | module_exit(megaraid_exit); | |
5114 | ||
5115 | /* vi: set ts=8 sw=8 tw=78: */ |