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> |
f2b9857e | 49 | #include <linux/smp_lock.h> |
5a0e3ad6 | 50 | #include <linux/slab.h> |
1da177e4 LT |
51 | #include <scsi/scsicam.h> |
52 | ||
53 | #include "scsi.h" | |
54 | #include <scsi/scsi_host.h> | |
55 | ||
56 | #include "megaraid.h" | |
57 | ||
3492b328 | 58 | #define MEGARAID_MODULE_VERSION "2.00.4" |
1da177e4 | 59 | |
3492b328 JS |
60 | MODULE_AUTHOR ("sju@lsil.com"); |
61 | MODULE_DESCRIPTION ("LSI Logic MegaRAID legacy driver"); | |
1da177e4 LT |
62 | MODULE_LICENSE ("GPL"); |
63 | MODULE_VERSION(MEGARAID_MODULE_VERSION); | |
64 | ||
65 | static unsigned int max_cmd_per_lun = DEF_CMD_PER_LUN; | |
66 | module_param(max_cmd_per_lun, uint, 0); | |
67 | 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)"); | |
68 | ||
69 | static unsigned short int max_sectors_per_io = MAX_SECTORS_PER_IO; | |
70 | module_param(max_sectors_per_io, ushort, 0); | |
71 | MODULE_PARM_DESC(max_sectors_per_io, "Maximum number of sectors per I/O request (default=MAX_SECTORS_PER_IO=128)"); | |
72 | ||
73 | ||
74 | static unsigned short int max_mbox_busy_wait = MBOX_BUSY_WAIT; | |
75 | module_param(max_mbox_busy_wait, ushort, 0); | |
76 | MODULE_PARM_DESC(max_mbox_busy_wait, "Maximum wait for mailbox in microseconds if busy (default=MBOX_BUSY_WAIT=10)"); | |
77 | ||
00769ec4 JG |
78 | #define RDINDOOR(adapter) readl((adapter)->mmio_base + 0x20) |
79 | #define RDOUTDOOR(adapter) readl((adapter)->mmio_base + 0x2C) | |
80 | #define WRINDOOR(adapter,value) writel(value, (adapter)->mmio_base + 0x20) | |
81 | #define WROUTDOOR(adapter,value) writel(value, (adapter)->mmio_base + 0x2C) | |
1da177e4 LT |
82 | |
83 | /* | |
84 | * Global variables | |
85 | */ | |
86 | ||
87 | static int hba_count; | |
88 | static adapter_t *hba_soft_state[MAX_CONTROLLERS]; | |
89 | static struct proc_dir_entry *mega_proc_dir_entry; | |
90 | ||
91 | /* For controller re-ordering */ | |
92 | static struct mega_hbas mega_hbas[MAX_CONTROLLERS]; | |
93 | ||
f4927c45 AB |
94 | static long |
95 | megadev_unlocked_ioctl(struct file *filep, unsigned int cmd, unsigned long arg); | |
96 | ||
1da177e4 LT |
97 | /* |
98 | * The File Operations structure for the serial/ioctl interface of the driver | |
99 | */ | |
00977a59 | 100 | static const struct file_operations megadev_fops = { |
1da177e4 | 101 | .owner = THIS_MODULE, |
f4927c45 | 102 | .unlocked_ioctl = megadev_unlocked_ioctl, |
1da177e4 LT |
103 | .open = megadev_open, |
104 | }; | |
105 | ||
106 | /* | |
107 | * Array to structures for storing the information about the controllers. This | |
108 | * information is sent to the user level applications, when they do an ioctl | |
109 | * for this information. | |
110 | */ | |
111 | static struct mcontroller mcontroller[MAX_CONTROLLERS]; | |
112 | ||
113 | /* The current driver version */ | |
114 | static u32 driver_ver = 0x02000000; | |
115 | ||
116 | /* major number used by the device for character interface */ | |
117 | static int major; | |
118 | ||
119 | #define IS_RAID_CH(hba, ch) (((hba)->mega_ch_class >> (ch)) & 0x01) | |
120 | ||
121 | ||
122 | /* | |
123 | * Debug variable to print some diagnostic messages | |
124 | */ | |
125 | static int trace_level; | |
126 | ||
127 | /** | |
128 | * mega_setup_mailbox() | |
129 | * @adapter - pointer to our soft state | |
130 | * | |
131 | * Allocates a 8 byte aligned memory for the handshake mailbox. | |
132 | */ | |
133 | static int | |
134 | mega_setup_mailbox(adapter_t *adapter) | |
135 | { | |
136 | unsigned long align; | |
137 | ||
138 | adapter->una_mbox64 = pci_alloc_consistent(adapter->dev, | |
139 | sizeof(mbox64_t), &adapter->una_mbox64_dma); | |
140 | ||
141 | if( !adapter->una_mbox64 ) return -1; | |
142 | ||
143 | adapter->mbox = &adapter->una_mbox64->mbox; | |
144 | ||
145 | adapter->mbox = (mbox_t *)((((unsigned long) adapter->mbox) + 15) & | |
146 | (~0UL ^ 0xFUL)); | |
147 | ||
148 | adapter->mbox64 = (mbox64_t *)(((unsigned long)adapter->mbox) - 8); | |
149 | ||
150 | align = ((void *)adapter->mbox) - ((void *)&adapter->una_mbox64->mbox); | |
151 | ||
152 | adapter->mbox_dma = adapter->una_mbox64_dma + 8 + align; | |
153 | ||
154 | /* | |
155 | * Register the mailbox if the controller is an io-mapped controller | |
156 | */ | |
157 | if( adapter->flag & BOARD_IOMAP ) { | |
158 | ||
7d1abbe8 | 159 | outb(adapter->mbox_dma & 0xFF, |
1da177e4 LT |
160 | adapter->host->io_port + MBOX_PORT0); |
161 | ||
7d1abbe8 | 162 | outb((adapter->mbox_dma >> 8) & 0xFF, |
1da177e4 LT |
163 | adapter->host->io_port + MBOX_PORT1); |
164 | ||
7d1abbe8 | 165 | outb((adapter->mbox_dma >> 16) & 0xFF, |
1da177e4 LT |
166 | adapter->host->io_port + MBOX_PORT2); |
167 | ||
7d1abbe8 | 168 | outb((adapter->mbox_dma >> 24) & 0xFF, |
1da177e4 LT |
169 | adapter->host->io_port + MBOX_PORT3); |
170 | ||
7d1abbe8 | 171 | outb(ENABLE_MBOX_BYTE, |
1da177e4 LT |
172 | adapter->host->io_port + ENABLE_MBOX_REGION); |
173 | ||
174 | irq_ack(adapter); | |
175 | ||
176 | irq_enable(adapter); | |
177 | } | |
178 | ||
179 | return 0; | |
180 | } | |
181 | ||
182 | ||
183 | /* | |
184 | * mega_query_adapter() | |
185 | * @adapter - pointer to our soft state | |
186 | * | |
187 | * Issue the adapter inquiry commands to the controller and find out | |
188 | * information and parameter about the devices attached | |
189 | */ | |
190 | static int | |
191 | mega_query_adapter(adapter_t *adapter) | |
192 | { | |
193 | dma_addr_t prod_info_dma_handle; | |
194 | mega_inquiry3 *inquiry3; | |
195 | u8 raw_mbox[sizeof(struct mbox_out)]; | |
196 | mbox_t *mbox; | |
197 | int retval; | |
198 | ||
199 | /* Initialize adapter inquiry mailbox */ | |
200 | ||
201 | mbox = (mbox_t *)raw_mbox; | |
202 | ||
203 | memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE); | |
204 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); | |
205 | ||
206 | /* | |
207 | * Try to issue Inquiry3 command | |
208 | * if not succeeded, then issue MEGA_MBOXCMD_ADAPTERINQ command and | |
209 | * update enquiry3 structure | |
210 | */ | |
211 | mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle; | |
212 | ||
213 | inquiry3 = (mega_inquiry3 *)adapter->mega_buffer; | |
214 | ||
215 | raw_mbox[0] = FC_NEW_CONFIG; /* i.e. mbox->cmd=0xA1 */ | |
216 | raw_mbox[2] = NC_SUBOP_ENQUIRY3; /* i.e. 0x0F */ | |
217 | raw_mbox[3] = ENQ3_GET_SOLICITED_FULL; /* i.e. 0x02 */ | |
218 | ||
219 | /* Issue a blocking command to the card */ | |
220 | if ((retval = issue_scb_block(adapter, raw_mbox))) { | |
221 | /* the adapter does not support 40ld */ | |
222 | ||
223 | mraid_ext_inquiry *ext_inq; | |
224 | mraid_inquiry *inq; | |
225 | dma_addr_t dma_handle; | |
226 | ||
227 | ext_inq = pci_alloc_consistent(adapter->dev, | |
228 | sizeof(mraid_ext_inquiry), &dma_handle); | |
229 | ||
230 | if( ext_inq == NULL ) return -1; | |
231 | ||
232 | inq = &ext_inq->raid_inq; | |
233 | ||
234 | mbox->m_out.xferaddr = (u32)dma_handle; | |
235 | ||
236 | /*issue old 0x04 command to adapter */ | |
237 | mbox->m_out.cmd = MEGA_MBOXCMD_ADPEXTINQ; | |
238 | ||
239 | issue_scb_block(adapter, raw_mbox); | |
240 | ||
241 | /* | |
242 | * update Enquiry3 and ProductInfo structures with | |
243 | * mraid_inquiry structure | |
244 | */ | |
245 | mega_8_to_40ld(inq, inquiry3, | |
246 | (mega_product_info *)&adapter->product_info); | |
247 | ||
248 | pci_free_consistent(adapter->dev, sizeof(mraid_ext_inquiry), | |
249 | ext_inq, dma_handle); | |
250 | ||
251 | } else { /*adapter supports 40ld */ | |
252 | adapter->flag |= BOARD_40LD; | |
253 | ||
254 | /* | |
255 | * get product_info, which is static information and will be | |
256 | * unchanged | |
257 | */ | |
258 | prod_info_dma_handle = pci_map_single(adapter->dev, (void *) | |
259 | &adapter->product_info, | |
260 | sizeof(mega_product_info), PCI_DMA_FROMDEVICE); | |
261 | ||
262 | mbox->m_out.xferaddr = prod_info_dma_handle; | |
263 | ||
264 | raw_mbox[0] = FC_NEW_CONFIG; /* i.e. mbox->cmd=0xA1 */ | |
265 | raw_mbox[2] = NC_SUBOP_PRODUCT_INFO; /* i.e. 0x0E */ | |
266 | ||
267 | if ((retval = issue_scb_block(adapter, raw_mbox))) | |
268 | printk(KERN_WARNING | |
269 | "megaraid: Product_info cmd failed with error: %d\n", | |
270 | retval); | |
271 | ||
272 | pci_unmap_single(adapter->dev, prod_info_dma_handle, | |
273 | sizeof(mega_product_info), PCI_DMA_FROMDEVICE); | |
274 | } | |
275 | ||
276 | ||
277 | /* | |
278 | * kernel scans the channels from 0 to <= max_channel | |
279 | */ | |
280 | adapter->host->max_channel = | |
281 | adapter->product_info.nchannels + NVIRT_CHAN -1; | |
282 | ||
283 | adapter->host->max_id = 16; /* max targets per channel */ | |
284 | ||
285 | adapter->host->max_lun = 7; /* Upto 7 luns for non disk devices */ | |
286 | ||
287 | adapter->host->cmd_per_lun = max_cmd_per_lun; | |
288 | ||
289 | adapter->numldrv = inquiry3->num_ldrv; | |
290 | ||
291 | adapter->max_cmds = adapter->product_info.max_commands; | |
292 | ||
293 | if(adapter->max_cmds > MAX_COMMANDS) | |
294 | adapter->max_cmds = MAX_COMMANDS; | |
295 | ||
296 | adapter->host->can_queue = adapter->max_cmds - 1; | |
297 | ||
298 | /* | |
299 | * Get the maximum number of scatter-gather elements supported by this | |
300 | * firmware | |
301 | */ | |
302 | mega_get_max_sgl(adapter); | |
303 | ||
304 | adapter->host->sg_tablesize = adapter->sglen; | |
305 | ||
306 | ||
307 | /* use HP firmware and bios version encoding */ | |
308 | if (adapter->product_info.subsysvid == HP_SUBSYS_VID) { | |
309 | sprintf (adapter->fw_version, "%c%d%d.%d%d", | |
310 | adapter->product_info.fw_version[2], | |
311 | adapter->product_info.fw_version[1] >> 8, | |
312 | adapter->product_info.fw_version[1] & 0x0f, | |
313 | adapter->product_info.fw_version[0] >> 8, | |
314 | adapter->product_info.fw_version[0] & 0x0f); | |
315 | sprintf (adapter->bios_version, "%c%d%d.%d%d", | |
316 | adapter->product_info.bios_version[2], | |
317 | adapter->product_info.bios_version[1] >> 8, | |
318 | adapter->product_info.bios_version[1] & 0x0f, | |
319 | adapter->product_info.bios_version[0] >> 8, | |
320 | adapter->product_info.bios_version[0] & 0x0f); | |
321 | } else { | |
322 | memcpy(adapter->fw_version, | |
323 | (char *)adapter->product_info.fw_version, 4); | |
324 | adapter->fw_version[4] = 0; | |
325 | ||
326 | memcpy(adapter->bios_version, | |
327 | (char *)adapter->product_info.bios_version, 4); | |
328 | ||
329 | adapter->bios_version[4] = 0; | |
330 | } | |
331 | ||
332 | printk(KERN_NOTICE "megaraid: [%s:%s] detected %d logical drives.\n", | |
333 | adapter->fw_version, adapter->bios_version, adapter->numldrv); | |
334 | ||
335 | /* | |
336 | * Do we support extended (>10 bytes) cdbs | |
337 | */ | |
338 | adapter->support_ext_cdb = mega_support_ext_cdb(adapter); | |
339 | if (adapter->support_ext_cdb) | |
340 | printk(KERN_NOTICE "megaraid: supports extended CDBs.\n"); | |
341 | ||
342 | ||
343 | return 0; | |
344 | } | |
345 | ||
346 | /** | |
347 | * mega_runpendq() | |
348 | * @adapter - pointer to our soft state | |
349 | * | |
350 | * Runs through the list of pending requests. | |
351 | */ | |
352 | static inline void | |
353 | mega_runpendq(adapter_t *adapter) | |
354 | { | |
355 | if(!list_empty(&adapter->pending_list)) | |
356 | __mega_runpendq(adapter); | |
357 | } | |
358 | ||
359 | /* | |
360 | * megaraid_queue() | |
361 | * @scmd - Issue this scsi command | |
362 | * @done - the callback hook into the scsi mid-layer | |
363 | * | |
364 | * The command queuing entry point for the mid-layer. | |
365 | */ | |
366 | static int | |
367 | megaraid_queue(Scsi_Cmnd *scmd, void (*done)(Scsi_Cmnd *)) | |
368 | { | |
369 | adapter_t *adapter; | |
370 | scb_t *scb; | |
371 | int busy=0; | |
cb0258a2 | 372 | unsigned long flags; |
1da177e4 LT |
373 | |
374 | adapter = (adapter_t *)scmd->device->host->hostdata; | |
375 | ||
376 | scmd->scsi_done = done; | |
377 | ||
378 | ||
379 | /* | |
380 | * Allocate and build a SCB request | |
381 | * busy flag will be set if mega_build_cmd() command could not | |
382 | * allocate scb. We will return non-zero status in that case. | |
383 | * NOTE: scb can be null even though certain commands completed | |
384 | * successfully, e.g., MODE_SENSE and TEST_UNIT_READY, we would | |
385 | * return 0 in that case. | |
386 | */ | |
387 | ||
cb0258a2 | 388 | spin_lock_irqsave(&adapter->lock, flags); |
1da177e4 | 389 | scb = mega_build_cmd(adapter, scmd, &busy); |
238f9b06 CH |
390 | if (!scb) |
391 | goto out; | |
1da177e4 | 392 | |
238f9b06 CH |
393 | scb->state |= SCB_PENDQ; |
394 | list_add_tail(&scb->list, &adapter->pending_list); | |
1da177e4 | 395 | |
238f9b06 CH |
396 | /* |
397 | * Check if the HBA is in quiescent state, e.g., during a | |
398 | * delete logical drive opertion. If it is, don't run | |
399 | * the pending_list. | |
400 | */ | |
401 | if (atomic_read(&adapter->quiescent) == 0) | |
402 | mega_runpendq(adapter); | |
1da177e4 | 403 | |
238f9b06 CH |
404 | busy = 0; |
405 | out: | |
406 | spin_unlock_irqrestore(&adapter->lock, flags); | |
1da177e4 LT |
407 | return busy; |
408 | } | |
409 | ||
410 | /** | |
411 | * mega_allocate_scb() | |
412 | * @adapter - pointer to our soft state | |
413 | * @cmd - scsi command from the mid-layer | |
414 | * | |
415 | * Allocate a SCB structure. This is the central structure for controller | |
416 | * commands. | |
417 | */ | |
418 | static inline scb_t * | |
419 | mega_allocate_scb(adapter_t *adapter, Scsi_Cmnd *cmd) | |
420 | { | |
421 | struct list_head *head = &adapter->free_list; | |
422 | scb_t *scb; | |
423 | ||
424 | /* Unlink command from Free List */ | |
425 | if( !list_empty(head) ) { | |
426 | ||
427 | scb = list_entry(head->next, scb_t, list); | |
428 | ||
429 | list_del_init(head->next); | |
430 | ||
431 | scb->state = SCB_ACTIVE; | |
432 | scb->cmd = cmd; | |
433 | scb->dma_type = MEGA_DMA_TYPE_NONE; | |
434 | ||
435 | return scb; | |
436 | } | |
437 | ||
438 | return NULL; | |
439 | } | |
440 | ||
441 | /** | |
442 | * mega_get_ldrv_num() | |
443 | * @adapter - pointer to our soft state | |
444 | * @cmd - scsi mid layer command | |
445 | * @channel - channel on the controller | |
446 | * | |
447 | * Calculate the logical drive number based on the information in scsi command | |
448 | * and the channel number. | |
449 | */ | |
450 | static inline int | |
451 | mega_get_ldrv_num(adapter_t *adapter, Scsi_Cmnd *cmd, int channel) | |
452 | { | |
453 | int tgt; | |
454 | int ldrv_num; | |
455 | ||
456 | tgt = cmd->device->id; | |
457 | ||
458 | if ( tgt > adapter->this_id ) | |
459 | tgt--; /* we do not get inquires for initiator id */ | |
460 | ||
461 | ldrv_num = (channel * 15) + tgt; | |
462 | ||
463 | ||
464 | /* | |
465 | * If we have a logical drive with boot enabled, project it first | |
466 | */ | |
467 | if( adapter->boot_ldrv_enabled ) { | |
468 | if( ldrv_num == 0 ) { | |
469 | ldrv_num = adapter->boot_ldrv; | |
470 | } | |
471 | else { | |
472 | if( ldrv_num <= adapter->boot_ldrv ) { | |
473 | ldrv_num--; | |
474 | } | |
475 | } | |
476 | } | |
477 | ||
478 | /* | |
479 | * If "delete logical drive" feature is enabled on this controller. | |
480 | * Do only if at least one delete logical drive operation was done. | |
481 | * | |
482 | * Also, after logical drive deletion, instead of logical drive number, | |
483 | * the value returned should be 0x80+logical drive id. | |
484 | * | |
485 | * These is valid only for IO commands. | |
486 | */ | |
487 | ||
488 | if (adapter->support_random_del && adapter->read_ldidmap ) | |
489 | switch (cmd->cmnd[0]) { | |
490 | case READ_6: /* fall through */ | |
491 | case WRITE_6: /* fall through */ | |
492 | case READ_10: /* fall through */ | |
493 | case WRITE_10: | |
494 | ldrv_num += 0x80; | |
495 | } | |
496 | ||
497 | return ldrv_num; | |
498 | } | |
499 | ||
500 | /** | |
501 | * mega_build_cmd() | |
502 | * @adapter - pointer to our soft state | |
503 | * @cmd - Prepare using this scsi command | |
504 | * @busy - busy flag if no resources | |
505 | * | |
506 | * Prepares a command and scatter gather list for the controller. This routine | |
507 | * also finds out if the commands is intended for a logical drive or a | |
508 | * physical device and prepares the controller command accordingly. | |
509 | * | |
510 | * We also re-order the logical drives and physical devices based on their | |
511 | * boot settings. | |
512 | */ | |
513 | static scb_t * | |
514 | mega_build_cmd(adapter_t *adapter, Scsi_Cmnd *cmd, int *busy) | |
515 | { | |
516 | mega_ext_passthru *epthru; | |
517 | mega_passthru *pthru; | |
518 | scb_t *scb; | |
519 | mbox_t *mbox; | |
520 | long seg; | |
521 | char islogical; | |
522 | int max_ldrv_num; | |
523 | int channel = 0; | |
524 | int target = 0; | |
525 | int ldrv_num = 0; /* logical drive number */ | |
526 | ||
527 | ||
528 | /* | |
529 | * filter the internal and ioctl commands | |
530 | */ | |
3f6270ef FT |
531 | if((cmd->cmnd[0] == MEGA_INTERNAL_CMD)) |
532 | return (scb_t *)cmd->host_scribble; | |
1da177e4 LT |
533 | |
534 | /* | |
535 | * We know what channels our logical drives are on - mega_find_card() | |
536 | */ | |
537 | islogical = adapter->logdrv_chan[cmd->device->channel]; | |
538 | ||
539 | /* | |
540 | * The theory: If physical drive is chosen for boot, all the physical | |
541 | * devices are exported before the logical drives, otherwise physical | |
542 | * devices are pushed after logical drives, in which case - Kernel sees | |
543 | * the physical devices on virtual channel which is obviously converted | |
544 | * to actual channel on the HBA. | |
545 | */ | |
546 | if( adapter->boot_pdrv_enabled ) { | |
547 | if( islogical ) { | |
548 | /* logical channel */ | |
549 | channel = cmd->device->channel - | |
550 | adapter->product_info.nchannels; | |
551 | } | |
552 | else { | |
553 | /* this is physical channel */ | |
554 | channel = cmd->device->channel; | |
555 | target = cmd->device->id; | |
556 | ||
557 | /* | |
558 | * boot from a physical disk, that disk needs to be | |
559 | * exposed first IF both the channels are SCSI, then | |
560 | * booting from the second channel is not allowed. | |
561 | */ | |
562 | if( target == 0 ) { | |
563 | target = adapter->boot_pdrv_tgt; | |
564 | } | |
565 | else if( target == adapter->boot_pdrv_tgt ) { | |
566 | target = 0; | |
567 | } | |
568 | } | |
569 | } | |
570 | else { | |
571 | if( islogical ) { | |
572 | /* this is the logical channel */ | |
573 | channel = cmd->device->channel; | |
574 | } | |
575 | else { | |
576 | /* physical channel */ | |
577 | channel = cmd->device->channel - NVIRT_CHAN; | |
578 | target = cmd->device->id; | |
579 | } | |
580 | } | |
581 | ||
582 | ||
583 | if(islogical) { | |
584 | ||
585 | /* have just LUN 0 for each target on virtual channels */ | |
586 | if (cmd->device->lun) { | |
587 | cmd->result = (DID_BAD_TARGET << 16); | |
588 | cmd->scsi_done(cmd); | |
589 | return NULL; | |
590 | } | |
591 | ||
592 | ldrv_num = mega_get_ldrv_num(adapter, cmd, channel); | |
593 | ||
594 | ||
595 | max_ldrv_num = (adapter->flag & BOARD_40LD) ? | |
596 | MAX_LOGICAL_DRIVES_40LD : MAX_LOGICAL_DRIVES_8LD; | |
597 | ||
598 | /* | |
599 | * max_ldrv_num increases by 0x80 if some logical drive was | |
600 | * deleted. | |
601 | */ | |
602 | if(adapter->read_ldidmap) | |
603 | max_ldrv_num += 0x80; | |
604 | ||
605 | if(ldrv_num > max_ldrv_num ) { | |
606 | cmd->result = (DID_BAD_TARGET << 16); | |
607 | cmd->scsi_done(cmd); | |
608 | return NULL; | |
609 | } | |
610 | ||
611 | } | |
612 | else { | |
613 | if( cmd->device->lun > 7) { | |
614 | /* | |
615 | * Do not support lun >7 for physically accessed | |
616 | * devices | |
617 | */ | |
618 | cmd->result = (DID_BAD_TARGET << 16); | |
619 | cmd->scsi_done(cmd); | |
620 | return NULL; | |
621 | } | |
622 | } | |
623 | ||
624 | /* | |
625 | * | |
626 | * Logical drive commands | |
627 | * | |
628 | */ | |
629 | if(islogical) { | |
630 | switch (cmd->cmnd[0]) { | |
631 | case TEST_UNIT_READY: | |
1da177e4 LT |
632 | #if MEGA_HAVE_CLUSTERING |
633 | /* | |
634 | * Do we support clustering and is the support enabled | |
635 | * If no, return success always | |
636 | */ | |
637 | if( !adapter->has_cluster ) { | |
638 | cmd->result = (DID_OK << 16); | |
639 | cmd->scsi_done(cmd); | |
640 | return NULL; | |
641 | } | |
642 | ||
643 | if(!(scb = mega_allocate_scb(adapter, cmd))) { | |
644 | *busy = 1; | |
645 | return NULL; | |
646 | } | |
647 | ||
648 | scb->raw_mbox[0] = MEGA_CLUSTER_CMD; | |
649 | scb->raw_mbox[2] = MEGA_RESERVATION_STATUS; | |
650 | scb->raw_mbox[3] = ldrv_num; | |
651 | ||
652 | scb->dma_direction = PCI_DMA_NONE; | |
653 | ||
654 | return scb; | |
655 | #else | |
656 | cmd->result = (DID_OK << 16); | |
657 | cmd->scsi_done(cmd); | |
658 | return NULL; | |
659 | #endif | |
660 | ||
51c928c3 JB |
661 | case MODE_SENSE: { |
662 | char *buf; | |
3f6270ef | 663 | struct scatterlist *sg; |
51c928c3 | 664 | |
3f6270ef | 665 | sg = scsi_sglist(cmd); |
45711f1a | 666 | buf = kmap_atomic(sg_page(sg), KM_IRQ0) + sg->offset; |
51c928c3 | 667 | |
f0353301 | 668 | memset(buf, 0, cmd->cmnd[4]); |
3f6270ef | 669 | kunmap_atomic(buf - sg->offset, KM_IRQ0); |
51c928c3 | 670 | |
1da177e4 LT |
671 | cmd->result = (DID_OK << 16); |
672 | cmd->scsi_done(cmd); | |
673 | return NULL; | |
51c928c3 | 674 | } |
1da177e4 LT |
675 | |
676 | case READ_CAPACITY: | |
677 | case INQUIRY: | |
678 | ||
679 | if(!(adapter->flag & (1L << cmd->device->channel))) { | |
680 | ||
681 | printk(KERN_NOTICE | |
682 | "scsi%d: scanning scsi channel %d ", | |
683 | adapter->host->host_no, | |
684 | cmd->device->channel); | |
685 | printk("for logical drives.\n"); | |
686 | ||
687 | adapter->flag |= (1L << cmd->device->channel); | |
688 | } | |
689 | ||
690 | /* Allocate a SCB and initialize passthru */ | |
691 | if(!(scb = mega_allocate_scb(adapter, cmd))) { | |
692 | *busy = 1; | |
693 | return NULL; | |
694 | } | |
695 | pthru = scb->pthru; | |
696 | ||
697 | mbox = (mbox_t *)scb->raw_mbox; | |
698 | memset(mbox, 0, sizeof(scb->raw_mbox)); | |
699 | memset(pthru, 0, sizeof(mega_passthru)); | |
700 | ||
701 | pthru->timeout = 0; | |
702 | pthru->ars = 1; | |
703 | pthru->reqsenselen = 14; | |
704 | pthru->islogical = 1; | |
705 | pthru->logdrv = ldrv_num; | |
706 | pthru->cdblen = cmd->cmd_len; | |
707 | memcpy(pthru->cdb, cmd->cmnd, cmd->cmd_len); | |
708 | ||
709 | if( adapter->has_64bit_addr ) { | |
710 | mbox->m_out.cmd = MEGA_MBOXCMD_PASSTHRU64; | |
711 | } | |
712 | else { | |
713 | mbox->m_out.cmd = MEGA_MBOXCMD_PASSTHRU; | |
714 | } | |
715 | ||
716 | scb->dma_direction = PCI_DMA_FROMDEVICE; | |
717 | ||
718 | pthru->numsgelements = mega_build_sglist(adapter, scb, | |
719 | &pthru->dataxferaddr, &pthru->dataxferlen); | |
720 | ||
721 | mbox->m_out.xferaddr = scb->pthru_dma_addr; | |
722 | ||
723 | return scb; | |
724 | ||
725 | case READ_6: | |
726 | case WRITE_6: | |
727 | case READ_10: | |
728 | case WRITE_10: | |
729 | case READ_12: | |
730 | case WRITE_12: | |
731 | ||
732 | /* Allocate a SCB and initialize mailbox */ | |
733 | if(!(scb = mega_allocate_scb(adapter, cmd))) { | |
734 | *busy = 1; | |
735 | return NULL; | |
736 | } | |
737 | mbox = (mbox_t *)scb->raw_mbox; | |
738 | ||
739 | memset(mbox, 0, sizeof(scb->raw_mbox)); | |
740 | mbox->m_out.logdrv = ldrv_num; | |
741 | ||
742 | /* | |
743 | * A little hack: 2nd bit is zero for all scsi read | |
744 | * commands and is set for all scsi write commands | |
745 | */ | |
746 | if( adapter->has_64bit_addr ) { | |
747 | mbox->m_out.cmd = (*cmd->cmnd & 0x02) ? | |
748 | MEGA_MBOXCMD_LWRITE64: | |
749 | MEGA_MBOXCMD_LREAD64 ; | |
750 | } | |
751 | else { | |
752 | mbox->m_out.cmd = (*cmd->cmnd & 0x02) ? | |
753 | MEGA_MBOXCMD_LWRITE: | |
754 | MEGA_MBOXCMD_LREAD ; | |
755 | } | |
756 | ||
757 | /* | |
758 | * 6-byte READ(0x08) or WRITE(0x0A) cdb | |
759 | */ | |
760 | if( cmd->cmd_len == 6 ) { | |
761 | mbox->m_out.numsectors = (u32) cmd->cmnd[4]; | |
762 | mbox->m_out.lba = | |
763 | ((u32)cmd->cmnd[1] << 16) | | |
764 | ((u32)cmd->cmnd[2] << 8) | | |
765 | (u32)cmd->cmnd[3]; | |
766 | ||
767 | mbox->m_out.lba &= 0x1FFFFF; | |
768 | ||
769 | #if MEGA_HAVE_STATS | |
770 | /* | |
771 | * Take modulo 0x80, since the logical drive | |
772 | * number increases by 0x80 when a logical | |
773 | * drive was deleted | |
774 | */ | |
775 | if (*cmd->cmnd == READ_6) { | |
776 | adapter->nreads[ldrv_num%0x80]++; | |
777 | adapter->nreadblocks[ldrv_num%0x80] += | |
778 | mbox->m_out.numsectors; | |
779 | } else { | |
780 | adapter->nwrites[ldrv_num%0x80]++; | |
781 | adapter->nwriteblocks[ldrv_num%0x80] += | |
782 | mbox->m_out.numsectors; | |
783 | } | |
784 | #endif | |
785 | } | |
786 | ||
787 | /* | |
788 | * 10-byte READ(0x28) or WRITE(0x2A) cdb | |
789 | */ | |
790 | if( cmd->cmd_len == 10 ) { | |
791 | mbox->m_out.numsectors = | |
792 | (u32)cmd->cmnd[8] | | |
793 | ((u32)cmd->cmnd[7] << 8); | |
794 | mbox->m_out.lba = | |
795 | ((u32)cmd->cmnd[2] << 24) | | |
796 | ((u32)cmd->cmnd[3] << 16) | | |
797 | ((u32)cmd->cmnd[4] << 8) | | |
798 | (u32)cmd->cmnd[5]; | |
799 | ||
800 | #if MEGA_HAVE_STATS | |
801 | if (*cmd->cmnd == READ_10) { | |
802 | adapter->nreads[ldrv_num%0x80]++; | |
803 | adapter->nreadblocks[ldrv_num%0x80] += | |
804 | mbox->m_out.numsectors; | |
805 | } else { | |
806 | adapter->nwrites[ldrv_num%0x80]++; | |
807 | adapter->nwriteblocks[ldrv_num%0x80] += | |
808 | mbox->m_out.numsectors; | |
809 | } | |
810 | #endif | |
811 | } | |
812 | ||
813 | /* | |
814 | * 12-byte READ(0xA8) or WRITE(0xAA) cdb | |
815 | */ | |
816 | if( cmd->cmd_len == 12 ) { | |
817 | mbox->m_out.lba = | |
818 | ((u32)cmd->cmnd[2] << 24) | | |
819 | ((u32)cmd->cmnd[3] << 16) | | |
820 | ((u32)cmd->cmnd[4] << 8) | | |
821 | (u32)cmd->cmnd[5]; | |
822 | ||
823 | mbox->m_out.numsectors = | |
824 | ((u32)cmd->cmnd[6] << 24) | | |
825 | ((u32)cmd->cmnd[7] << 16) | | |
826 | ((u32)cmd->cmnd[8] << 8) | | |
827 | (u32)cmd->cmnd[9]; | |
828 | ||
829 | #if MEGA_HAVE_STATS | |
830 | if (*cmd->cmnd == READ_12) { | |
831 | adapter->nreads[ldrv_num%0x80]++; | |
832 | adapter->nreadblocks[ldrv_num%0x80] += | |
833 | mbox->m_out.numsectors; | |
834 | } else { | |
835 | adapter->nwrites[ldrv_num%0x80]++; | |
836 | adapter->nwriteblocks[ldrv_num%0x80] += | |
837 | mbox->m_out.numsectors; | |
838 | } | |
839 | #endif | |
840 | } | |
841 | ||
842 | /* | |
843 | * If it is a read command | |
844 | */ | |
845 | if( (*cmd->cmnd & 0x0F) == 0x08 ) { | |
846 | scb->dma_direction = PCI_DMA_FROMDEVICE; | |
847 | } | |
848 | else { | |
849 | scb->dma_direction = PCI_DMA_TODEVICE; | |
850 | } | |
851 | ||
852 | /* Calculate Scatter-Gather info */ | |
853 | mbox->m_out.numsgelements = mega_build_sglist(adapter, scb, | |
854 | (u32 *)&mbox->m_out.xferaddr, (u32 *)&seg); | |
855 | ||
856 | return scb; | |
857 | ||
858 | #if MEGA_HAVE_CLUSTERING | |
859 | case RESERVE: /* Fall through */ | |
860 | case RELEASE: | |
861 | ||
862 | /* | |
863 | * Do we support clustering and is the support enabled | |
864 | */ | |
865 | if( ! adapter->has_cluster ) { | |
866 | ||
867 | cmd->result = (DID_BAD_TARGET << 16); | |
868 | cmd->scsi_done(cmd); | |
869 | return NULL; | |
870 | } | |
871 | ||
872 | /* Allocate a SCB and initialize mailbox */ | |
873 | if(!(scb = mega_allocate_scb(adapter, cmd))) { | |
874 | *busy = 1; | |
875 | return NULL; | |
876 | } | |
877 | ||
878 | scb->raw_mbox[0] = MEGA_CLUSTER_CMD; | |
879 | scb->raw_mbox[2] = ( *cmd->cmnd == RESERVE ) ? | |
880 | MEGA_RESERVE_LD : MEGA_RELEASE_LD; | |
881 | ||
882 | scb->raw_mbox[3] = ldrv_num; | |
883 | ||
884 | scb->dma_direction = PCI_DMA_NONE; | |
885 | ||
886 | return scb; | |
887 | #endif | |
888 | ||
889 | default: | |
890 | cmd->result = (DID_BAD_TARGET << 16); | |
891 | cmd->scsi_done(cmd); | |
892 | return NULL; | |
893 | } | |
894 | } | |
895 | ||
896 | /* | |
897 | * Passthru drive commands | |
898 | */ | |
899 | else { | |
900 | /* Allocate a SCB and initialize passthru */ | |
901 | if(!(scb = mega_allocate_scb(adapter, cmd))) { | |
902 | *busy = 1; | |
903 | return NULL; | |
904 | } | |
905 | ||
906 | mbox = (mbox_t *)scb->raw_mbox; | |
907 | memset(mbox, 0, sizeof(scb->raw_mbox)); | |
908 | ||
909 | if( adapter->support_ext_cdb ) { | |
910 | ||
911 | epthru = mega_prepare_extpassthru(adapter, scb, cmd, | |
912 | channel, target); | |
913 | ||
914 | mbox->m_out.cmd = MEGA_MBOXCMD_EXTPTHRU; | |
915 | ||
916 | mbox->m_out.xferaddr = scb->epthru_dma_addr; | |
917 | ||
918 | } | |
919 | else { | |
920 | ||
921 | pthru = mega_prepare_passthru(adapter, scb, cmd, | |
922 | channel, target); | |
923 | ||
924 | /* Initialize mailbox */ | |
925 | if( adapter->has_64bit_addr ) { | |
926 | mbox->m_out.cmd = MEGA_MBOXCMD_PASSTHRU64; | |
927 | } | |
928 | else { | |
929 | mbox->m_out.cmd = MEGA_MBOXCMD_PASSTHRU; | |
930 | } | |
931 | ||
932 | mbox->m_out.xferaddr = scb->pthru_dma_addr; | |
933 | ||
934 | } | |
935 | return scb; | |
936 | } | |
937 | return NULL; | |
938 | } | |
939 | ||
940 | ||
941 | /** | |
942 | * mega_prepare_passthru() | |
943 | * @adapter - pointer to our soft state | |
944 | * @scb - our scsi control block | |
945 | * @cmd - scsi command from the mid-layer | |
946 | * @channel - actual channel on the controller | |
947 | * @target - actual id on the controller. | |
948 | * | |
949 | * prepare a command for the scsi physical devices. | |
950 | */ | |
951 | static mega_passthru * | |
952 | mega_prepare_passthru(adapter_t *adapter, scb_t *scb, Scsi_Cmnd *cmd, | |
953 | int channel, int target) | |
954 | { | |
955 | mega_passthru *pthru; | |
956 | ||
957 | pthru = scb->pthru; | |
958 | memset(pthru, 0, sizeof (mega_passthru)); | |
959 | ||
960 | /* 0=6sec/1=60sec/2=10min/3=3hrs */ | |
961 | pthru->timeout = 2; | |
962 | ||
963 | pthru->ars = 1; | |
964 | pthru->reqsenselen = 14; | |
965 | pthru->islogical = 0; | |
966 | ||
967 | pthru->channel = (adapter->flag & BOARD_40LD) ? 0 : channel; | |
968 | ||
969 | pthru->target = (adapter->flag & BOARD_40LD) ? | |
970 | (channel << 4) | target : target; | |
971 | ||
972 | pthru->cdblen = cmd->cmd_len; | |
973 | pthru->logdrv = cmd->device->lun; | |
974 | ||
975 | memcpy(pthru->cdb, cmd->cmnd, cmd->cmd_len); | |
976 | ||
977 | /* Not sure about the direction */ | |
978 | scb->dma_direction = PCI_DMA_BIDIRECTIONAL; | |
979 | ||
980 | /* Special Code for Handling READ_CAPA/ INQ using bounce buffers */ | |
981 | switch (cmd->cmnd[0]) { | |
982 | case INQUIRY: | |
983 | case READ_CAPACITY: | |
984 | if(!(adapter->flag & (1L << cmd->device->channel))) { | |
985 | ||
986 | printk(KERN_NOTICE | |
987 | "scsi%d: scanning scsi channel %d [P%d] ", | |
988 | adapter->host->host_no, | |
989 | cmd->device->channel, channel); | |
990 | printk("for physical devices.\n"); | |
991 | ||
992 | adapter->flag |= (1L << cmd->device->channel); | |
993 | } | |
994 | /* Fall through */ | |
995 | default: | |
996 | pthru->numsgelements = mega_build_sglist(adapter, scb, | |
997 | &pthru->dataxferaddr, &pthru->dataxferlen); | |
998 | break; | |
999 | } | |
1000 | return pthru; | |
1001 | } | |
1002 | ||
1003 | ||
1004 | /** | |
1005 | * mega_prepare_extpassthru() | |
1006 | * @adapter - pointer to our soft state | |
1007 | * @scb - our scsi control block | |
1008 | * @cmd - scsi command from the mid-layer | |
1009 | * @channel - actual channel on the controller | |
1010 | * @target - actual id on the controller. | |
1011 | * | |
1012 | * prepare a command for the scsi physical devices. This rountine prepares | |
1013 | * commands for devices which can take extended CDBs (>10 bytes) | |
1014 | */ | |
1015 | static mega_ext_passthru * | |
1016 | mega_prepare_extpassthru(adapter_t *adapter, scb_t *scb, Scsi_Cmnd *cmd, | |
1017 | int channel, int target) | |
1018 | { | |
1019 | mega_ext_passthru *epthru; | |
1020 | ||
1021 | epthru = scb->epthru; | |
1022 | memset(epthru, 0, sizeof(mega_ext_passthru)); | |
1023 | ||
1024 | /* 0=6sec/1=60sec/2=10min/3=3hrs */ | |
1025 | epthru->timeout = 2; | |
1026 | ||
1027 | epthru->ars = 1; | |
1028 | epthru->reqsenselen = 14; | |
1029 | epthru->islogical = 0; | |
1030 | ||
1031 | epthru->channel = (adapter->flag & BOARD_40LD) ? 0 : channel; | |
1032 | epthru->target = (adapter->flag & BOARD_40LD) ? | |
1033 | (channel << 4) | target : target; | |
1034 | ||
1035 | epthru->cdblen = cmd->cmd_len; | |
1036 | epthru->logdrv = cmd->device->lun; | |
1037 | ||
1038 | memcpy(epthru->cdb, cmd->cmnd, cmd->cmd_len); | |
1039 | ||
1040 | /* Not sure about the direction */ | |
1041 | scb->dma_direction = PCI_DMA_BIDIRECTIONAL; | |
1042 | ||
1043 | switch(cmd->cmnd[0]) { | |
1044 | case INQUIRY: | |
1045 | case READ_CAPACITY: | |
1046 | if(!(adapter->flag & (1L << cmd->device->channel))) { | |
1047 | ||
1048 | printk(KERN_NOTICE | |
1049 | "scsi%d: scanning scsi channel %d [P%d] ", | |
1050 | adapter->host->host_no, | |
1051 | cmd->device->channel, channel); | |
1052 | printk("for physical devices.\n"); | |
1053 | ||
1054 | adapter->flag |= (1L << cmd->device->channel); | |
1055 | } | |
1056 | /* Fall through */ | |
1057 | default: | |
1058 | epthru->numsgelements = mega_build_sglist(adapter, scb, | |
1059 | &epthru->dataxferaddr, &epthru->dataxferlen); | |
1060 | break; | |
1061 | } | |
1062 | ||
1063 | return epthru; | |
1064 | } | |
1065 | ||
1066 | static void | |
1067 | __mega_runpendq(adapter_t *adapter) | |
1068 | { | |
1069 | scb_t *scb; | |
1070 | struct list_head *pos, *next; | |
1071 | ||
1072 | /* Issue any pending commands to the card */ | |
1073 | list_for_each_safe(pos, next, &adapter->pending_list) { | |
1074 | ||
1075 | scb = list_entry(pos, scb_t, list); | |
1076 | ||
1077 | if( !(scb->state & SCB_ISSUED) ) { | |
1078 | ||
1079 | if( issue_scb(adapter, scb) != 0 ) | |
1080 | return; | |
1081 | } | |
1082 | } | |
1083 | ||
1084 | return; | |
1085 | } | |
1086 | ||
1087 | ||
1088 | /** | |
1089 | * issue_scb() | |
1090 | * @adapter - pointer to our soft state | |
1091 | * @scb - scsi control block | |
1092 | * | |
1093 | * Post a command to the card if the mailbox is available, otherwise return | |
1094 | * busy. We also take the scb from the pending list if the mailbox is | |
1095 | * available. | |
1096 | */ | |
1097 | static int | |
1098 | issue_scb(adapter_t *adapter, scb_t *scb) | |
1099 | { | |
1100 | volatile mbox64_t *mbox64 = adapter->mbox64; | |
1101 | volatile mbox_t *mbox = adapter->mbox; | |
1102 | unsigned int i = 0; | |
1103 | ||
1104 | if(unlikely(mbox->m_in.busy)) { | |
1105 | do { | |
1106 | udelay(1); | |
1107 | i++; | |
1108 | } while( mbox->m_in.busy && (i < max_mbox_busy_wait) ); | |
1109 | ||
1110 | if(mbox->m_in.busy) return -1; | |
1111 | } | |
1112 | ||
1113 | /* Copy mailbox data into host structure */ | |
1114 | memcpy((char *)&mbox->m_out, (char *)scb->raw_mbox, | |
1115 | sizeof(struct mbox_out)); | |
1116 | ||
1117 | mbox->m_out.cmdid = scb->idx; /* Set cmdid */ | |
1118 | mbox->m_in.busy = 1; /* Set busy */ | |
1119 | ||
1120 | ||
1121 | /* | |
1122 | * Increment the pending queue counter | |
1123 | */ | |
1124 | atomic_inc(&adapter->pend_cmds); | |
1125 | ||
1126 | switch (mbox->m_out.cmd) { | |
1127 | case MEGA_MBOXCMD_LREAD64: | |
1128 | case MEGA_MBOXCMD_LWRITE64: | |
1129 | case MEGA_MBOXCMD_PASSTHRU64: | |
1130 | case MEGA_MBOXCMD_EXTPTHRU: | |
1131 | mbox64->xfer_segment_lo = mbox->m_out.xferaddr; | |
1132 | mbox64->xfer_segment_hi = 0; | |
1133 | mbox->m_out.xferaddr = 0xFFFFFFFF; | |
1134 | break; | |
1135 | default: | |
1136 | mbox64->xfer_segment_lo = 0; | |
1137 | mbox64->xfer_segment_hi = 0; | |
1138 | } | |
1139 | ||
1140 | /* | |
1141 | * post the command | |
1142 | */ | |
1143 | scb->state |= SCB_ISSUED; | |
1144 | ||
1145 | if( likely(adapter->flag & BOARD_MEMMAP) ) { | |
1146 | mbox->m_in.poll = 0; | |
1147 | mbox->m_in.ack = 0; | |
1148 | WRINDOOR(adapter, adapter->mbox_dma | 0x1); | |
1149 | } | |
1150 | else { | |
1151 | irq_enable(adapter); | |
1152 | issue_command(adapter); | |
1153 | } | |
1154 | ||
1155 | return 0; | |
1156 | } | |
1157 | ||
1158 | /* | |
1159 | * Wait until the controller's mailbox is available | |
1160 | */ | |
1161 | static inline int | |
1162 | mega_busywait_mbox (adapter_t *adapter) | |
1163 | { | |
1164 | if (adapter->mbox->m_in.busy) | |
1165 | return __mega_busywait_mbox(adapter); | |
1166 | return 0; | |
1167 | } | |
1168 | ||
1169 | /** | |
1170 | * issue_scb_block() | |
1171 | * @adapter - pointer to our soft state | |
1172 | * @raw_mbox - the mailbox | |
1173 | * | |
1174 | * Issue a scb in synchronous and non-interrupt mode | |
1175 | */ | |
1176 | static int | |
1177 | issue_scb_block(adapter_t *adapter, u_char *raw_mbox) | |
1178 | { | |
1179 | volatile mbox64_t *mbox64 = adapter->mbox64; | |
1180 | volatile mbox_t *mbox = adapter->mbox; | |
1181 | u8 byte; | |
1182 | ||
1183 | /* Wait until mailbox is free */ | |
1184 | if(mega_busywait_mbox (adapter)) | |
1185 | goto bug_blocked_mailbox; | |
1186 | ||
1187 | /* Copy mailbox data into host structure */ | |
1188 | memcpy((char *) mbox, raw_mbox, sizeof(struct mbox_out)); | |
1189 | mbox->m_out.cmdid = 0xFE; | |
1190 | mbox->m_in.busy = 1; | |
1191 | ||
1192 | switch (raw_mbox[0]) { | |
1193 | case MEGA_MBOXCMD_LREAD64: | |
1194 | case MEGA_MBOXCMD_LWRITE64: | |
1195 | case MEGA_MBOXCMD_PASSTHRU64: | |
1196 | case MEGA_MBOXCMD_EXTPTHRU: | |
1197 | mbox64->xfer_segment_lo = mbox->m_out.xferaddr; | |
1198 | mbox64->xfer_segment_hi = 0; | |
1199 | mbox->m_out.xferaddr = 0xFFFFFFFF; | |
1200 | break; | |
1201 | default: | |
1202 | mbox64->xfer_segment_lo = 0; | |
1203 | mbox64->xfer_segment_hi = 0; | |
1204 | } | |
1205 | ||
1206 | if( likely(adapter->flag & BOARD_MEMMAP) ) { | |
1207 | mbox->m_in.poll = 0; | |
1208 | mbox->m_in.ack = 0; | |
1209 | mbox->m_in.numstatus = 0xFF; | |
1210 | mbox->m_in.status = 0xFF; | |
1211 | WRINDOOR(adapter, adapter->mbox_dma | 0x1); | |
1212 | ||
1213 | while((volatile u8)mbox->m_in.numstatus == 0xFF) | |
1214 | cpu_relax(); | |
1215 | ||
1216 | mbox->m_in.numstatus = 0xFF; | |
1217 | ||
1218 | while( (volatile u8)mbox->m_in.poll != 0x77 ) | |
1219 | cpu_relax(); | |
1220 | ||
1221 | mbox->m_in.poll = 0; | |
1222 | mbox->m_in.ack = 0x77; | |
1223 | ||
1224 | WRINDOOR(adapter, adapter->mbox_dma | 0x2); | |
1225 | ||
1226 | while(RDINDOOR(adapter) & 0x2) | |
1227 | cpu_relax(); | |
1228 | } | |
1229 | else { | |
1230 | irq_disable(adapter); | |
1231 | issue_command(adapter); | |
1232 | ||
1233 | while (!((byte = irq_state(adapter)) & INTR_VALID)) | |
1234 | cpu_relax(); | |
1235 | ||
1236 | set_irq_state(adapter, byte); | |
1237 | irq_enable(adapter); | |
1238 | irq_ack(adapter); | |
1239 | } | |
1240 | ||
1241 | return mbox->m_in.status; | |
1242 | ||
1243 | bug_blocked_mailbox: | |
1244 | printk(KERN_WARNING "megaraid: Blocked mailbox......!!\n"); | |
1245 | udelay (1000); | |
1246 | return -1; | |
1247 | } | |
1248 | ||
1249 | ||
1250 | /** | |
1251 | * megaraid_isr_iomapped() | |
1252 | * @irq - irq | |
1253 | * @devp - pointer to our soft state | |
1da177e4 LT |
1254 | * |
1255 | * Interrupt service routine for io-mapped controllers. | |
1256 | * Find out if our device is interrupting. If yes, acknowledge the interrupt | |
1257 | * and service the completed commands. | |
1258 | */ | |
1259 | static irqreturn_t | |
7d12e780 | 1260 | megaraid_isr_iomapped(int irq, void *devp) |
1da177e4 LT |
1261 | { |
1262 | adapter_t *adapter = devp; | |
1263 | unsigned long flags; | |
1264 | u8 status; | |
1265 | u8 nstatus; | |
1266 | u8 completed[MAX_FIRMWARE_STATUS]; | |
1267 | u8 byte; | |
1268 | int handled = 0; | |
1269 | ||
1270 | ||
1271 | /* | |
1272 | * loop till F/W has more commands for us to complete. | |
1273 | */ | |
1274 | spin_lock_irqsave(&adapter->lock, flags); | |
1275 | ||
1276 | do { | |
1277 | /* Check if a valid interrupt is pending */ | |
1278 | byte = irq_state(adapter); | |
1279 | if( (byte & VALID_INTR_BYTE) == 0 ) { | |
1280 | /* | |
1281 | * No more pending commands | |
1282 | */ | |
1283 | goto out_unlock; | |
1284 | } | |
1285 | set_irq_state(adapter, byte); | |
1286 | ||
1287 | while((nstatus = (volatile u8)adapter->mbox->m_in.numstatus) | |
1288 | == 0xFF) | |
1289 | cpu_relax(); | |
1290 | adapter->mbox->m_in.numstatus = 0xFF; | |
1291 | ||
1292 | status = adapter->mbox->m_in.status; | |
1293 | ||
1294 | /* | |
1295 | * decrement the pending queue counter | |
1296 | */ | |
1297 | atomic_sub(nstatus, &adapter->pend_cmds); | |
1298 | ||
1299 | memcpy(completed, (void *)adapter->mbox->m_in.completed, | |
1300 | nstatus); | |
1301 | ||
1302 | /* Acknowledge interrupt */ | |
1303 | irq_ack(adapter); | |
1304 | ||
1305 | mega_cmd_done(adapter, completed, nstatus, status); | |
1306 | ||
1307 | mega_rundoneq(adapter); | |
1308 | ||
1309 | handled = 1; | |
1310 | ||
1311 | /* Loop through any pending requests */ | |
1312 | if(atomic_read(&adapter->quiescent) == 0) { | |
1313 | mega_runpendq(adapter); | |
1314 | } | |
1315 | ||
1316 | } while(1); | |
1317 | ||
1318 | out_unlock: | |
1319 | ||
1320 | spin_unlock_irqrestore(&adapter->lock, flags); | |
1321 | ||
1322 | return IRQ_RETVAL(handled); | |
1323 | } | |
1324 | ||
1325 | ||
1326 | /** | |
1327 | * megaraid_isr_memmapped() | |
1328 | * @irq - irq | |
1329 | * @devp - pointer to our soft state | |
1da177e4 LT |
1330 | * |
1331 | * Interrupt service routine for memory-mapped controllers. | |
1332 | * Find out if our device is interrupting. If yes, acknowledge the interrupt | |
1333 | * and service the completed commands. | |
1334 | */ | |
1335 | static irqreturn_t | |
7d12e780 | 1336 | megaraid_isr_memmapped(int irq, void *devp) |
1da177e4 LT |
1337 | { |
1338 | adapter_t *adapter = devp; | |
1339 | unsigned long flags; | |
1340 | u8 status; | |
1341 | u32 dword = 0; | |
1342 | u8 nstatus; | |
1343 | u8 completed[MAX_FIRMWARE_STATUS]; | |
1344 | int handled = 0; | |
1345 | ||
1346 | ||
1347 | /* | |
1348 | * loop till F/W has more commands for us to complete. | |
1349 | */ | |
1350 | spin_lock_irqsave(&adapter->lock, flags); | |
1351 | ||
1352 | do { | |
1353 | /* Check if a valid interrupt is pending */ | |
1354 | dword = RDOUTDOOR(adapter); | |
1355 | if(dword != 0x10001234) { | |
1356 | /* | |
1357 | * No more pending commands | |
1358 | */ | |
1359 | goto out_unlock; | |
1360 | } | |
1361 | WROUTDOOR(adapter, 0x10001234); | |
1362 | ||
1363 | while((nstatus = (volatile u8)adapter->mbox->m_in.numstatus) | |
1364 | == 0xFF) { | |
1365 | cpu_relax(); | |
1366 | } | |
1367 | adapter->mbox->m_in.numstatus = 0xFF; | |
1368 | ||
1369 | status = adapter->mbox->m_in.status; | |
1370 | ||
1371 | /* | |
1372 | * decrement the pending queue counter | |
1373 | */ | |
1374 | atomic_sub(nstatus, &adapter->pend_cmds); | |
1375 | ||
1376 | memcpy(completed, (void *)adapter->mbox->m_in.completed, | |
1377 | nstatus); | |
1378 | ||
1379 | /* Acknowledge interrupt */ | |
1380 | WRINDOOR(adapter, 0x2); | |
1381 | ||
1382 | handled = 1; | |
1383 | ||
00769ec4 JG |
1384 | while( RDINDOOR(adapter) & 0x02 ) |
1385 | cpu_relax(); | |
1da177e4 LT |
1386 | |
1387 | mega_cmd_done(adapter, completed, nstatus, status); | |
1388 | ||
1389 | mega_rundoneq(adapter); | |
1390 | ||
1391 | /* Loop through any pending requests */ | |
1392 | if(atomic_read(&adapter->quiescent) == 0) { | |
1393 | mega_runpendq(adapter); | |
1394 | } | |
1395 | ||
1396 | } while(1); | |
1397 | ||
1398 | out_unlock: | |
1399 | ||
1400 | spin_unlock_irqrestore(&adapter->lock, flags); | |
1401 | ||
1402 | return IRQ_RETVAL(handled); | |
1403 | } | |
1404 | /** | |
1405 | * mega_cmd_done() | |
1406 | * @adapter - pointer to our soft state | |
1407 | * @completed - array of ids of completed commands | |
1408 | * @nstatus - number of completed commands | |
1409 | * @status - status of the last command completed | |
1410 | * | |
1411 | * Complete the comamnds and call the scsi mid-layer callback hooks. | |
1412 | */ | |
1413 | static void | |
1414 | mega_cmd_done(adapter_t *adapter, u8 completed[], int nstatus, int status) | |
1415 | { | |
1416 | mega_ext_passthru *epthru = NULL; | |
1417 | struct scatterlist *sgl; | |
1418 | Scsi_Cmnd *cmd = NULL; | |
1419 | mega_passthru *pthru = NULL; | |
1420 | mbox_t *mbox = NULL; | |
1421 | u8 c; | |
1422 | scb_t *scb; | |
1423 | int islogical; | |
1424 | int cmdid; | |
1425 | int i; | |
1426 | ||
1427 | /* | |
1428 | * for all the commands completed, call the mid-layer callback routine | |
1429 | * and free the scb. | |
1430 | */ | |
1431 | for( i = 0; i < nstatus; i++ ) { | |
1432 | ||
1433 | cmdid = completed[i]; | |
1434 | ||
1435 | if( cmdid == CMDID_INT_CMDS ) { /* internal command */ | |
1436 | scb = &adapter->int_scb; | |
1437 | cmd = scb->cmd; | |
1438 | mbox = (mbox_t *)scb->raw_mbox; | |
1439 | ||
1440 | /* | |
1441 | * Internal command interface do not fire the extended | |
1442 | * passthru or 64-bit passthru | |
1443 | */ | |
1444 | pthru = scb->pthru; | |
1445 | ||
1446 | } | |
1447 | else { | |
1448 | scb = &adapter->scb_list[cmdid]; | |
1449 | ||
1450 | /* | |
1451 | * Make sure f/w has completed a valid command | |
1452 | */ | |
1453 | if( !(scb->state & SCB_ISSUED) || scb->cmd == NULL ) { | |
1454 | printk(KERN_CRIT | |
1455 | "megaraid: invalid command "); | |
1456 | printk("Id %d, scb->state:%x, scsi cmd:%p\n", | |
1457 | cmdid, scb->state, scb->cmd); | |
1458 | ||
1459 | continue; | |
1460 | } | |
1461 | ||
1462 | /* | |
1463 | * Was a abort issued for this command | |
1464 | */ | |
1465 | if( scb->state & SCB_ABORT ) { | |
1466 | ||
1467 | printk(KERN_WARNING | |
1468 | "megaraid: aborted cmd %lx[%x] complete.\n", | |
1469 | scb->cmd->serial_number, scb->idx); | |
1470 | ||
1471 | scb->cmd->result = (DID_ABORT << 16); | |
1472 | ||
1473 | list_add_tail(SCSI_LIST(scb->cmd), | |
1474 | &adapter->completed_list); | |
1475 | ||
1476 | mega_free_scb(adapter, scb); | |
1477 | ||
1478 | continue; | |
1479 | } | |
1480 | ||
1481 | /* | |
1482 | * Was a reset issued for this command | |
1483 | */ | |
1484 | if( scb->state & SCB_RESET ) { | |
1485 | ||
1486 | printk(KERN_WARNING | |
1487 | "megaraid: reset cmd %lx[%x] complete.\n", | |
1488 | scb->cmd->serial_number, scb->idx); | |
1489 | ||
1490 | scb->cmd->result = (DID_RESET << 16); | |
1491 | ||
1492 | list_add_tail(SCSI_LIST(scb->cmd), | |
1493 | &adapter->completed_list); | |
1494 | ||
1495 | mega_free_scb (adapter, scb); | |
1496 | ||
1497 | continue; | |
1498 | } | |
1499 | ||
1500 | cmd = scb->cmd; | |
1501 | pthru = scb->pthru; | |
1502 | epthru = scb->epthru; | |
1503 | mbox = (mbox_t *)scb->raw_mbox; | |
1504 | ||
1505 | #if MEGA_HAVE_STATS | |
1506 | { | |
1507 | ||
1508 | int logdrv = mbox->m_out.logdrv; | |
1509 | ||
1510 | islogical = adapter->logdrv_chan[cmd->channel]; | |
1511 | /* | |
1512 | * Maintain an error counter for the logical drive. | |
1513 | * Some application like SNMP agent need such | |
1514 | * statistics | |
1515 | */ | |
1516 | if( status && islogical && (cmd->cmnd[0] == READ_6 || | |
1517 | cmd->cmnd[0] == READ_10 || | |
1518 | cmd->cmnd[0] == READ_12)) { | |
1519 | /* | |
1520 | * Logical drive number increases by 0x80 when | |
1521 | * a logical drive is deleted | |
1522 | */ | |
1523 | adapter->rd_errors[logdrv%0x80]++; | |
1524 | } | |
1525 | ||
1526 | if( status && islogical && (cmd->cmnd[0] == WRITE_6 || | |
1527 | cmd->cmnd[0] == WRITE_10 || | |
1528 | cmd->cmnd[0] == WRITE_12)) { | |
1529 | /* | |
1530 | * Logical drive number increases by 0x80 when | |
1531 | * a logical drive is deleted | |
1532 | */ | |
1533 | adapter->wr_errors[logdrv%0x80]++; | |
1534 | } | |
1535 | ||
1536 | } | |
1537 | #endif | |
1538 | } | |
1539 | ||
1540 | /* | |
1541 | * Do not return the presence of hard disk on the channel so, | |
1542 | * inquiry sent, and returned data==hard disk or removable | |
1543 | * hard disk and not logical, request should return failure! - | |
1544 | * PJ | |
1545 | */ | |
1546 | islogical = adapter->logdrv_chan[cmd->device->channel]; | |
1547 | if( cmd->cmnd[0] == INQUIRY && !islogical ) { | |
1548 | ||
3f6270ef | 1549 | sgl = scsi_sglist(cmd); |
45711f1a JA |
1550 | if( sg_page(sgl) ) { |
1551 | c = *(unsigned char *) sg_virt(&sgl[0]); | |
3f6270ef FT |
1552 | } else { |
1553 | printk(KERN_WARNING | |
1554 | "megaraid: invalid sg.\n"); | |
1555 | c = 0; | |
1da177e4 LT |
1556 | } |
1557 | ||
1558 | if(IS_RAID_CH(adapter, cmd->device->channel) && | |
1559 | ((c & 0x1F ) == TYPE_DISK)) { | |
1560 | status = 0xF0; | |
1561 | } | |
1562 | } | |
1563 | ||
1564 | /* clear result; otherwise, success returns corrupt value */ | |
1565 | cmd->result = 0; | |
1566 | ||
1567 | /* Convert MegaRAID status to Linux error code */ | |
1568 | switch (status) { | |
1569 | case 0x00: /* SUCCESS , i.e. SCSI_STATUS_GOOD */ | |
1570 | cmd->result |= (DID_OK << 16); | |
1571 | break; | |
1572 | ||
1573 | case 0x02: /* ERROR_ABORTED, i.e. | |
1574 | SCSI_STATUS_CHECK_CONDITION */ | |
1575 | ||
1576 | /* set sense_buffer and result fields */ | |
1577 | if( mbox->m_out.cmd == MEGA_MBOXCMD_PASSTHRU || | |
1578 | mbox->m_out.cmd == MEGA_MBOXCMD_PASSTHRU64 ) { | |
1579 | ||
1580 | memcpy(cmd->sense_buffer, pthru->reqsensearea, | |
1581 | 14); | |
1582 | ||
1583 | cmd->result = (DRIVER_SENSE << 24) | | |
1584 | (DID_OK << 16) | | |
1585 | (CHECK_CONDITION << 1); | |
1586 | } | |
1587 | else { | |
1588 | if (mbox->m_out.cmd == MEGA_MBOXCMD_EXTPTHRU) { | |
1589 | ||
1590 | memcpy(cmd->sense_buffer, | |
1591 | epthru->reqsensearea, 14); | |
1592 | ||
1593 | cmd->result = (DRIVER_SENSE << 24) | | |
1594 | (DID_OK << 16) | | |
1595 | (CHECK_CONDITION << 1); | |
1596 | } else { | |
1597 | cmd->sense_buffer[0] = 0x70; | |
1598 | cmd->sense_buffer[2] = ABORTED_COMMAND; | |
1599 | cmd->result |= (CHECK_CONDITION << 1); | |
1600 | } | |
1601 | } | |
1602 | break; | |
1603 | ||
1604 | case 0x08: /* ERR_DEST_DRIVE_FAILED, i.e. | |
1605 | SCSI_STATUS_BUSY */ | |
1606 | cmd->result |= (DID_BUS_BUSY << 16) | status; | |
1607 | break; | |
1608 | ||
1609 | default: | |
1610 | #if MEGA_HAVE_CLUSTERING | |
1611 | /* | |
1612 | * If TEST_UNIT_READY fails, we know | |
1613 | * MEGA_RESERVATION_STATUS failed | |
1614 | */ | |
1615 | if( cmd->cmnd[0] == TEST_UNIT_READY ) { | |
1616 | cmd->result |= (DID_ERROR << 16) | | |
1617 | (RESERVATION_CONFLICT << 1); | |
1618 | } | |
1619 | else | |
1620 | /* | |
1621 | * Error code returned is 1 if Reserve or Release | |
1622 | * failed or the input parameter is invalid | |
1623 | */ | |
1624 | if( status == 1 && | |
1625 | (cmd->cmnd[0] == RESERVE || | |
1626 | cmd->cmnd[0] == RELEASE) ) { | |
1627 | ||
1628 | cmd->result |= (DID_ERROR << 16) | | |
1629 | (RESERVATION_CONFLICT << 1); | |
1630 | } | |
1631 | else | |
1632 | #endif | |
1633 | cmd->result |= (DID_BAD_TARGET << 16)|status; | |
1634 | } | |
1635 | ||
1636 | /* | |
1637 | * Only free SCBs for the commands coming down from the | |
1638 | * mid-layer, not for which were issued internally | |
1639 | * | |
1640 | * For internal command, restore the status returned by the | |
1641 | * firmware so that user can interpret it. | |
1642 | */ | |
1643 | if( cmdid == CMDID_INT_CMDS ) { /* internal command */ | |
1644 | cmd->result = status; | |
1645 | ||
1646 | /* | |
1647 | * Remove the internal command from the pending list | |
1648 | */ | |
1649 | list_del_init(&scb->list); | |
1650 | scb->state = SCB_FREE; | |
1651 | } | |
1652 | else { | |
1653 | mega_free_scb(adapter, scb); | |
1654 | } | |
1655 | ||
1656 | /* Add Scsi_Command to end of completed queue */ | |
1657 | list_add_tail(SCSI_LIST(cmd), &adapter->completed_list); | |
1658 | } | |
1659 | } | |
1660 | ||
1661 | ||
1662 | /* | |
1663 | * mega_runpendq() | |
1664 | * | |
1665 | * Run through the list of completed requests and finish it | |
1666 | */ | |
1667 | static void | |
1668 | mega_rundoneq (adapter_t *adapter) | |
1669 | { | |
1670 | Scsi_Cmnd *cmd; | |
1671 | struct list_head *pos; | |
1672 | ||
1673 | list_for_each(pos, &adapter->completed_list) { | |
1674 | ||
0a04137e | 1675 | struct scsi_pointer* spos = (struct scsi_pointer *)pos; |
1da177e4 LT |
1676 | |
1677 | cmd = list_entry(spos, Scsi_Cmnd, SCp); | |
1678 | cmd->scsi_done(cmd); | |
1679 | } | |
1680 | ||
1681 | INIT_LIST_HEAD(&adapter->completed_list); | |
1682 | } | |
1683 | ||
1684 | ||
1685 | /* | |
1686 | * Free a SCB structure | |
1687 | * Note: We assume the scsi commands associated with this scb is not free yet. | |
1688 | */ | |
1689 | static void | |
1690 | mega_free_scb(adapter_t *adapter, scb_t *scb) | |
1691 | { | |
1692 | switch( scb->dma_type ) { | |
1693 | ||
1694 | case MEGA_DMA_TYPE_NONE: | |
1695 | break; | |
1696 | ||
1da177e4 | 1697 | case MEGA_SGLIST: |
3f6270ef | 1698 | scsi_dma_unmap(scb->cmd); |
1da177e4 | 1699 | break; |
1da177e4 LT |
1700 | default: |
1701 | break; | |
1702 | } | |
1703 | ||
1704 | /* | |
1705 | * Remove from the pending list | |
1706 | */ | |
1707 | list_del_init(&scb->list); | |
1708 | ||
1709 | /* Link the scb back into free list */ | |
1710 | scb->state = SCB_FREE; | |
1711 | scb->cmd = NULL; | |
1712 | ||
1713 | list_add(&scb->list, &adapter->free_list); | |
1714 | } | |
1715 | ||
1716 | ||
1717 | static int | |
1718 | __mega_busywait_mbox (adapter_t *adapter) | |
1719 | { | |
1720 | volatile mbox_t *mbox = adapter->mbox; | |
1721 | long counter; | |
1722 | ||
1723 | for (counter = 0; counter < 10000; counter++) { | |
1724 | if (!mbox->m_in.busy) | |
1725 | return 0; | |
e1fa0cea AL |
1726 | udelay(100); |
1727 | cond_resched(); | |
1da177e4 LT |
1728 | } |
1729 | return -1; /* give up after 1 second */ | |
1730 | } | |
1731 | ||
1732 | /* | |
1733 | * Copies data to SGLIST | |
1734 | * Note: For 64 bit cards, we need a minimum of one SG element for read/write | |
1735 | */ | |
1736 | static int | |
1737 | mega_build_sglist(adapter_t *adapter, scb_t *scb, u32 *buf, u32 *len) | |
1738 | { | |
3f6270ef | 1739 | struct scatterlist *sg; |
1da177e4 LT |
1740 | Scsi_Cmnd *cmd; |
1741 | int sgcnt; | |
1742 | int idx; | |
1743 | ||
1744 | cmd = scb->cmd; | |
1745 | ||
1da177e4 LT |
1746 | /* |
1747 | * Copy Scatter-Gather list info into controller structure. | |
1748 | * | |
1749 | * The number of sg elements returned must not exceed our limit | |
1750 | */ | |
3f6270ef | 1751 | sgcnt = scsi_dma_map(cmd); |
1da177e4 LT |
1752 | |
1753 | scb->dma_type = MEGA_SGLIST; | |
1754 | ||
3f6270ef | 1755 | BUG_ON(sgcnt > adapter->sglen || sgcnt < 0); |
1da177e4 | 1756 | |
51c928c3 JB |
1757 | *len = 0; |
1758 | ||
d5e89385 FT |
1759 | if (scsi_sg_count(cmd) == 1 && !adapter->has_64bit_addr) { |
1760 | sg = scsi_sglist(cmd); | |
1761 | scb->dma_h_bulkdata = sg_dma_address(sg); | |
1762 | *buf = (u32)scb->dma_h_bulkdata; | |
1763 | *len = sg_dma_len(sg); | |
1764 | return 0; | |
1765 | } | |
1766 | ||
3f6270ef FT |
1767 | scsi_for_each_sg(cmd, sg, sgcnt, idx) { |
1768 | if (adapter->has_64bit_addr) { | |
1769 | scb->sgl64[idx].address = sg_dma_address(sg); | |
1770 | *len += scb->sgl64[idx].length = sg_dma_len(sg); | |
1771 | } else { | |
1772 | scb->sgl[idx].address = sg_dma_address(sg); | |
1773 | *len += scb->sgl[idx].length = sg_dma_len(sg); | |
1da177e4 LT |
1774 | } |
1775 | } | |
1776 | ||
1777 | /* Reset pointer and length fields */ | |
1778 | *buf = scb->sgl_dma_addr; | |
1779 | ||
1da177e4 LT |
1780 | /* Return count of SG requests */ |
1781 | return sgcnt; | |
1782 | } | |
1783 | ||
1784 | ||
1785 | /* | |
1786 | * mega_8_to_40ld() | |
1787 | * | |
1788 | * takes all info in AdapterInquiry structure and puts it into ProductInfo and | |
1789 | * Enquiry3 structures for later use | |
1790 | */ | |
1791 | static void | |
1792 | mega_8_to_40ld(mraid_inquiry *inquiry, mega_inquiry3 *enquiry3, | |
1793 | mega_product_info *product_info) | |
1794 | { | |
1795 | int i; | |
1796 | ||
1797 | product_info->max_commands = inquiry->adapter_info.max_commands; | |
1798 | enquiry3->rebuild_rate = inquiry->adapter_info.rebuild_rate; | |
1799 | product_info->nchannels = inquiry->adapter_info.nchannels; | |
1800 | ||
1801 | for (i = 0; i < 4; i++) { | |
1802 | product_info->fw_version[i] = | |
1803 | inquiry->adapter_info.fw_version[i]; | |
1804 | ||
1805 | product_info->bios_version[i] = | |
1806 | inquiry->adapter_info.bios_version[i]; | |
1807 | } | |
1808 | enquiry3->cache_flush_interval = | |
1809 | inquiry->adapter_info.cache_flush_interval; | |
1810 | ||
1811 | product_info->dram_size = inquiry->adapter_info.dram_size; | |
1812 | ||
1813 | enquiry3->num_ldrv = inquiry->logdrv_info.num_ldrv; | |
1814 | ||
1815 | for (i = 0; i < MAX_LOGICAL_DRIVES_8LD; i++) { | |
1816 | enquiry3->ldrv_size[i] = inquiry->logdrv_info.ldrv_size[i]; | |
1817 | enquiry3->ldrv_prop[i] = inquiry->logdrv_info.ldrv_prop[i]; | |
1818 | enquiry3->ldrv_state[i] = inquiry->logdrv_info.ldrv_state[i]; | |
1819 | } | |
1820 | ||
1821 | for (i = 0; i < (MAX_PHYSICAL_DRIVES); i++) | |
1822 | enquiry3->pdrv_state[i] = inquiry->pdrv_info.pdrv_state[i]; | |
1823 | } | |
1824 | ||
1825 | static inline void | |
1826 | mega_free_sgl(adapter_t *adapter) | |
1827 | { | |
1828 | scb_t *scb; | |
1829 | int i; | |
1830 | ||
1831 | for(i = 0; i < adapter->max_cmds; i++) { | |
1832 | ||
1833 | scb = &adapter->scb_list[i]; | |
1834 | ||
1835 | if( scb->sgl64 ) { | |
1836 | pci_free_consistent(adapter->dev, | |
1837 | sizeof(mega_sgl64) * adapter->sglen, | |
1838 | scb->sgl64, | |
1839 | scb->sgl_dma_addr); | |
1840 | ||
1841 | scb->sgl64 = NULL; | |
1842 | } | |
1843 | ||
1844 | if( scb->pthru ) { | |
1845 | pci_free_consistent(adapter->dev, sizeof(mega_passthru), | |
1846 | scb->pthru, scb->pthru_dma_addr); | |
1847 | ||
1848 | scb->pthru = NULL; | |
1849 | } | |
1850 | ||
1851 | if( scb->epthru ) { | |
1852 | pci_free_consistent(adapter->dev, | |
1853 | sizeof(mega_ext_passthru), | |
1854 | scb->epthru, scb->epthru_dma_addr); | |
1855 | ||
1856 | scb->epthru = NULL; | |
1857 | } | |
1858 | ||
1859 | } | |
1860 | } | |
1861 | ||
1862 | ||
1863 | /* | |
1864 | * Get information about the card/driver | |
1865 | */ | |
1866 | const char * | |
1867 | megaraid_info(struct Scsi_Host *host) | |
1868 | { | |
1869 | static char buffer[512]; | |
1870 | adapter_t *adapter; | |
1871 | ||
1872 | adapter = (adapter_t *)host->hostdata; | |
1873 | ||
1874 | sprintf (buffer, | |
1875 | "LSI Logic MegaRAID %s %d commands %d targs %d chans %d luns", | |
1876 | adapter->fw_version, adapter->product_info.max_commands, | |
1877 | adapter->host->max_id, adapter->host->max_channel, | |
1878 | adapter->host->max_lun); | |
1879 | return buffer; | |
1880 | } | |
1881 | ||
1882 | /* | |
1883 | * Abort a previous SCSI request. Only commands on the pending list can be | |
1884 | * aborted. All the commands issued to the F/W must complete. | |
1885 | */ | |
1886 | static int | |
1887 | megaraid_abort(Scsi_Cmnd *cmd) | |
1888 | { | |
1889 | adapter_t *adapter; | |
1890 | int rval; | |
1891 | ||
1892 | adapter = (adapter_t *)cmd->device->host->hostdata; | |
1893 | ||
1894 | rval = megaraid_abort_and_reset(adapter, cmd, SCB_ABORT); | |
1895 | ||
1896 | /* | |
1897 | * This is required here to complete any completed requests | |
1898 | * to be communicated over to the mid layer. | |
1899 | */ | |
1900 | mega_rundoneq(adapter); | |
1901 | ||
1902 | return rval; | |
1903 | } | |
1904 | ||
1905 | ||
1906 | static int | |
fa4c4966 | 1907 | megaraid_reset(struct scsi_cmnd *cmd) |
1da177e4 LT |
1908 | { |
1909 | adapter_t *adapter; | |
1910 | megacmd_t mc; | |
1911 | int rval; | |
1912 | ||
1913 | adapter = (adapter_t *)cmd->device->host->hostdata; | |
1914 | ||
1915 | #if MEGA_HAVE_CLUSTERING | |
1916 | mc.cmd = MEGA_CLUSTER_CMD; | |
1917 | mc.opcode = MEGA_RESET_RESERVATIONS; | |
1918 | ||
cb0258a2 | 1919 | if( mega_internal_command(adapter, &mc, NULL) != 0 ) { |
1da177e4 LT |
1920 | printk(KERN_WARNING |
1921 | "megaraid: reservation reset failed.\n"); | |
1922 | } | |
1923 | else { | |
1924 | printk(KERN_INFO "megaraid: reservation reset.\n"); | |
1925 | } | |
1da177e4 LT |
1926 | #endif |
1927 | ||
fa4c4966 JB |
1928 | spin_lock_irq(&adapter->lock); |
1929 | ||
1da177e4 LT |
1930 | rval = megaraid_abort_and_reset(adapter, cmd, SCB_RESET); |
1931 | ||
1932 | /* | |
1933 | * This is required here to complete any completed requests | |
1934 | * to be communicated over to the mid layer. | |
1935 | */ | |
1936 | mega_rundoneq(adapter); | |
94d0e7b8 JG |
1937 | spin_unlock_irq(&adapter->lock); |
1938 | ||
fa4c4966 | 1939 | return rval; |
94d0e7b8 | 1940 | } |
1da177e4 | 1941 | |
1da177e4 LT |
1942 | /** |
1943 | * megaraid_abort_and_reset() | |
1944 | * @adapter - megaraid soft state | |
1945 | * @cmd - scsi command to be aborted or reset | |
1946 | * @aor - abort or reset flag | |
1947 | * | |
1948 | * Try to locate the scsi command in the pending queue. If found and is not | |
1949 | * issued to the controller, abort/reset it. Otherwise return failure | |
1950 | */ | |
1951 | static int | |
1952 | megaraid_abort_and_reset(adapter_t *adapter, Scsi_Cmnd *cmd, int aor) | |
1953 | { | |
1954 | struct list_head *pos, *next; | |
1955 | scb_t *scb; | |
1956 | ||
1957 | printk(KERN_WARNING "megaraid: %s-%lx cmd=%x <c=%d t=%d l=%d>\n", | |
1958 | (aor == SCB_ABORT)? "ABORTING":"RESET", cmd->serial_number, | |
1959 | cmd->cmnd[0], cmd->device->channel, | |
1960 | cmd->device->id, cmd->device->lun); | |
1961 | ||
1962 | if(list_empty(&adapter->pending_list)) | |
1963 | return FALSE; | |
1964 | ||
1965 | list_for_each_safe(pos, next, &adapter->pending_list) { | |
1966 | ||
1967 | scb = list_entry(pos, scb_t, list); | |
1968 | ||
1969 | if (scb->cmd == cmd) { /* Found command */ | |
1970 | ||
1971 | scb->state |= aor; | |
1972 | ||
1973 | /* | |
d41ad938 NA |
1974 | * Check if this command has firmware ownership. If |
1975 | * yes, we cannot reset this command. Whenever f/w | |
1da177e4 LT |
1976 | * completes this command, we will return appropriate |
1977 | * status from ISR. | |
1978 | */ | |
1979 | if( scb->state & SCB_ISSUED ) { | |
1980 | ||
1981 | printk(KERN_WARNING | |
1982 | "megaraid: %s-%lx[%x], fw owner.\n", | |
1983 | (aor==SCB_ABORT) ? "ABORTING":"RESET", | |
1984 | cmd->serial_number, scb->idx); | |
1985 | ||
1986 | return FALSE; | |
1987 | } | |
1988 | else { | |
1989 | ||
1990 | /* | |
1991 | * Not yet issued! Remove from the pending | |
1992 | * list | |
1993 | */ | |
1994 | printk(KERN_WARNING | |
1995 | "megaraid: %s-%lx[%x], driver owner.\n", | |
1996 | (aor==SCB_ABORT) ? "ABORTING":"RESET", | |
1997 | cmd->serial_number, scb->idx); | |
1998 | ||
1999 | mega_free_scb(adapter, scb); | |
2000 | ||
2001 | if( aor == SCB_ABORT ) { | |
2002 | cmd->result = (DID_ABORT << 16); | |
2003 | } | |
2004 | else { | |
2005 | cmd->result = (DID_RESET << 16); | |
2006 | } | |
2007 | ||
2008 | list_add_tail(SCSI_LIST(cmd), | |
2009 | &adapter->completed_list); | |
2010 | ||
2011 | return TRUE; | |
2012 | } | |
2013 | } | |
2014 | } | |
2015 | ||
2016 | return FALSE; | |
2017 | } | |
2018 | ||
2019 | static inline int | |
2020 | make_local_pdev(adapter_t *adapter, struct pci_dev **pdev) | |
2021 | { | |
bab41e9b | 2022 | *pdev = alloc_pci_dev(); |
1da177e4 LT |
2023 | |
2024 | if( *pdev == NULL ) return -1; | |
2025 | ||
2026 | memcpy(*pdev, adapter->dev, sizeof(struct pci_dev)); | |
2027 | ||
284901a9 | 2028 | if( pci_set_dma_mask(*pdev, DMA_BIT_MASK(32)) != 0 ) { |
1da177e4 LT |
2029 | kfree(*pdev); |
2030 | return -1; | |
2031 | } | |
2032 | ||
2033 | return 0; | |
2034 | } | |
2035 | ||
2036 | static inline void | |
2037 | free_local_pdev(struct pci_dev *pdev) | |
2038 | { | |
2039 | kfree(pdev); | |
2040 | } | |
2041 | ||
2042 | /** | |
2043 | * mega_allocate_inquiry() | |
2044 | * @dma_handle - handle returned for dma address | |
2045 | * @pdev - handle to pci device | |
2046 | * | |
2047 | * allocates memory for inquiry structure | |
2048 | */ | |
2049 | static inline void * | |
2050 | mega_allocate_inquiry(dma_addr_t *dma_handle, struct pci_dev *pdev) | |
2051 | { | |
2052 | return pci_alloc_consistent(pdev, sizeof(mega_inquiry3), dma_handle); | |
2053 | } | |
2054 | ||
2055 | ||
2056 | static inline void | |
2057 | mega_free_inquiry(void *inquiry, dma_addr_t dma_handle, struct pci_dev *pdev) | |
2058 | { | |
2059 | pci_free_consistent(pdev, sizeof(mega_inquiry3), inquiry, dma_handle); | |
2060 | } | |
2061 | ||
2062 | ||
2063 | #ifdef CONFIG_PROC_FS | |
2064 | /* Following code handles /proc fs */ | |
2065 | ||
2066 | #define CREATE_READ_PROC(string, func) create_proc_read_entry(string, \ | |
2067 | S_IRUSR | S_IFREG, \ | |
2068 | controller_proc_dir_entry, \ | |
2069 | func, adapter) | |
2070 | ||
2071 | /** | |
2072 | * mega_create_proc_entry() | |
2073 | * @index - index in soft state array | |
2074 | * @parent - parent node for this /proc entry | |
2075 | * | |
2076 | * Creates /proc entries for our controllers. | |
2077 | */ | |
2078 | static void | |
2079 | mega_create_proc_entry(int index, struct proc_dir_entry *parent) | |
2080 | { | |
2081 | struct proc_dir_entry *controller_proc_dir_entry = NULL; | |
2082 | u8 string[64] = { 0 }; | |
2083 | adapter_t *adapter = hba_soft_state[index]; | |
2084 | ||
2085 | sprintf(string, "hba%d", adapter->host->host_no); | |
2086 | ||
2087 | controller_proc_dir_entry = | |
2088 | adapter->controller_proc_dir_entry = proc_mkdir(string, parent); | |
2089 | ||
2090 | if(!controller_proc_dir_entry) { | |
2091 | printk(KERN_WARNING "\nmegaraid: proc_mkdir failed\n"); | |
2092 | return; | |
2093 | } | |
2094 | adapter->proc_read = CREATE_READ_PROC("config", proc_read_config); | |
2095 | adapter->proc_stat = CREATE_READ_PROC("stat", proc_read_stat); | |
2096 | adapter->proc_mbox = CREATE_READ_PROC("mailbox", proc_read_mbox); | |
2097 | #if MEGA_HAVE_ENH_PROC | |
2098 | adapter->proc_rr = CREATE_READ_PROC("rebuild-rate", proc_rebuild_rate); | |
2099 | adapter->proc_battery = CREATE_READ_PROC("battery-status", | |
2100 | proc_battery); | |
2101 | ||
2102 | /* | |
2103 | * Display each physical drive on its channel | |
2104 | */ | |
2105 | adapter->proc_pdrvstat[0] = CREATE_READ_PROC("diskdrives-ch0", | |
2106 | proc_pdrv_ch0); | |
2107 | adapter->proc_pdrvstat[1] = CREATE_READ_PROC("diskdrives-ch1", | |
2108 | proc_pdrv_ch1); | |
2109 | adapter->proc_pdrvstat[2] = CREATE_READ_PROC("diskdrives-ch2", | |
2110 | proc_pdrv_ch2); | |
2111 | adapter->proc_pdrvstat[3] = CREATE_READ_PROC("diskdrives-ch3", | |
2112 | proc_pdrv_ch3); | |
2113 | ||
2114 | /* | |
2115 | * Display a set of up to 10 logical drive through each of following | |
2116 | * /proc entries | |
2117 | */ | |
2118 | adapter->proc_rdrvstat[0] = CREATE_READ_PROC("raiddrives-0-9", | |
2119 | proc_rdrv_10); | |
2120 | adapter->proc_rdrvstat[1] = CREATE_READ_PROC("raiddrives-10-19", | |
2121 | proc_rdrv_20); | |
2122 | adapter->proc_rdrvstat[2] = CREATE_READ_PROC("raiddrives-20-29", | |
2123 | proc_rdrv_30); | |
2124 | adapter->proc_rdrvstat[3] = CREATE_READ_PROC("raiddrives-30-39", | |
2125 | proc_rdrv_40); | |
2126 | #endif | |
2127 | } | |
2128 | ||
2129 | ||
2130 | /** | |
2131 | * proc_read_config() | |
2132 | * @page - buffer to write the data in | |
2133 | * @start - where the actual data has been written in page | |
2134 | * @offset - same meaning as the read system call | |
2135 | * @count - same meaning as the read system call | |
2136 | * @eof - set if no more data needs to be returned | |
2137 | * @data - pointer to our soft state | |
2138 | * | |
2139 | * Display configuration information about the controller. | |
2140 | */ | |
2141 | static int | |
2142 | proc_read_config(char *page, char **start, off_t offset, int count, int *eof, | |
2143 | void *data) | |
2144 | { | |
2145 | ||
2146 | adapter_t *adapter = (adapter_t *)data; | |
2147 | int len = 0; | |
2148 | ||
2149 | len += sprintf(page+len, "%s", MEGARAID_VERSION); | |
2150 | ||
2151 | if(adapter->product_info.product_name[0]) | |
2152 | len += sprintf(page+len, "%s\n", | |
2153 | adapter->product_info.product_name); | |
2154 | ||
2155 | len += sprintf(page+len, "Controller Type: "); | |
2156 | ||
2157 | if( adapter->flag & BOARD_MEMMAP ) { | |
2158 | len += sprintf(page+len, | |
2159 | "438/466/467/471/493/518/520/531/532\n"); | |
2160 | } | |
2161 | else { | |
2162 | len += sprintf(page+len, | |
2163 | "418/428/434\n"); | |
2164 | } | |
2165 | ||
2166 | if(adapter->flag & BOARD_40LD) { | |
2167 | len += sprintf(page+len, | |
2168 | "Controller Supports 40 Logical Drives\n"); | |
2169 | } | |
2170 | ||
2171 | if(adapter->flag & BOARD_64BIT) { | |
2172 | len += sprintf(page+len, | |
2173 | "Controller capable of 64-bit memory addressing\n"); | |
2174 | } | |
2175 | if( adapter->has_64bit_addr ) { | |
2176 | len += sprintf(page+len, | |
2177 | "Controller using 64-bit memory addressing\n"); | |
2178 | } | |
2179 | else { | |
2180 | len += sprintf(page+len, | |
2181 | "Controller is not using 64-bit memory addressing\n"); | |
2182 | } | |
2183 | ||
2184 | len += sprintf(page+len, "Base = %08lx, Irq = %d, ", adapter->base, | |
2185 | adapter->host->irq); | |
2186 | ||
2187 | len += sprintf(page+len, "Logical Drives = %d, Channels = %d\n", | |
2188 | adapter->numldrv, adapter->product_info.nchannels); | |
2189 | ||
2190 | len += sprintf(page+len, "Version =%s:%s, DRAM = %dMb\n", | |
2191 | adapter->fw_version, adapter->bios_version, | |
2192 | adapter->product_info.dram_size); | |
2193 | ||
2194 | len += sprintf(page+len, | |
2195 | "Controller Queue Depth = %d, Driver Queue Depth = %d\n", | |
2196 | adapter->product_info.max_commands, adapter->max_cmds); | |
2197 | ||
2198 | len += sprintf(page+len, "support_ext_cdb = %d\n", | |
2199 | adapter->support_ext_cdb); | |
2200 | len += sprintf(page+len, "support_random_del = %d\n", | |
2201 | adapter->support_random_del); | |
2202 | len += sprintf(page+len, "boot_ldrv_enabled = %d\n", | |
2203 | adapter->boot_ldrv_enabled); | |
2204 | len += sprintf(page+len, "boot_ldrv = %d\n", | |
2205 | adapter->boot_ldrv); | |
2206 | len += sprintf(page+len, "boot_pdrv_enabled = %d\n", | |
2207 | adapter->boot_pdrv_enabled); | |
2208 | len += sprintf(page+len, "boot_pdrv_ch = %d\n", | |
2209 | adapter->boot_pdrv_ch); | |
2210 | len += sprintf(page+len, "boot_pdrv_tgt = %d\n", | |
2211 | adapter->boot_pdrv_tgt); | |
2212 | len += sprintf(page+len, "quiescent = %d\n", | |
2213 | atomic_read(&adapter->quiescent)); | |
2214 | len += sprintf(page+len, "has_cluster = %d\n", | |
2215 | adapter->has_cluster); | |
2216 | ||
2217 | len += sprintf(page+len, "\nModule Parameters:\n"); | |
2218 | len += sprintf(page+len, "max_cmd_per_lun = %d\n", | |
2219 | max_cmd_per_lun); | |
2220 | len += sprintf(page+len, "max_sectors_per_io = %d\n", | |
2221 | max_sectors_per_io); | |
2222 | ||
2223 | *eof = 1; | |
2224 | ||
2225 | return len; | |
2226 | } | |
2227 | ||
2228 | ||
2229 | ||
2230 | /** | |
2231 | * proc_read_stat() | |
2232 | * @page - buffer to write the data in | |
2233 | * @start - where the actual data has been written in page | |
2234 | * @offset - same meaning as the read system call | |
2235 | * @count - same meaning as the read system call | |
2236 | * @eof - set if no more data needs to be returned | |
2237 | * @data - pointer to our soft state | |
2238 | * | |
2239 | * Diaplay statistical information about the I/O activity. | |
2240 | */ | |
2241 | static int | |
2242 | proc_read_stat(char *page, char **start, off_t offset, int count, int *eof, | |
2243 | void *data) | |
2244 | { | |
2245 | adapter_t *adapter; | |
2246 | int len; | |
2247 | int i; | |
2248 | ||
2249 | i = 0; /* avoid compilation warnings */ | |
2250 | len = 0; | |
2251 | adapter = (adapter_t *)data; | |
2252 | ||
2253 | len = sprintf(page, "Statistical Information for this controller\n"); | |
2254 | len += sprintf(page+len, "pend_cmds = %d\n", | |
2255 | atomic_read(&adapter->pend_cmds)); | |
2256 | #if MEGA_HAVE_STATS | |
2257 | for(i = 0; i < adapter->numldrv; i++) { | |
2258 | len += sprintf(page+len, "Logical Drive %d:\n", i); | |
2259 | ||
2260 | len += sprintf(page+len, | |
2261 | "\tReads Issued = %lu, Writes Issued = %lu\n", | |
2262 | adapter->nreads[i], adapter->nwrites[i]); | |
2263 | ||
2264 | len += sprintf(page+len, | |
2265 | "\tSectors Read = %lu, Sectors Written = %lu\n", | |
2266 | adapter->nreadblocks[i], adapter->nwriteblocks[i]); | |
2267 | ||
2268 | len += sprintf(page+len, | |
2269 | "\tRead errors = %lu, Write errors = %lu\n\n", | |
2270 | adapter->rd_errors[i], adapter->wr_errors[i]); | |
2271 | } | |
2272 | #else | |
2273 | len += sprintf(page+len, | |
2274 | "IO and error counters not compiled in driver.\n"); | |
2275 | #endif | |
2276 | ||
2277 | *eof = 1; | |
2278 | ||
2279 | return len; | |
2280 | } | |
2281 | ||
2282 | ||
2283 | /** | |
2284 | * proc_read_mbox() | |
2285 | * @page - buffer to write the data in | |
2286 | * @start - where the actual data has been written in page | |
2287 | * @offset - same meaning as the read system call | |
2288 | * @count - same meaning as the read system call | |
2289 | * @eof - set if no more data needs to be returned | |
2290 | * @data - pointer to our soft state | |
2291 | * | |
2292 | * Display mailbox information for the last command issued. This information | |
2293 | * is good for debugging. | |
2294 | */ | |
2295 | static int | |
2296 | proc_read_mbox(char *page, char **start, off_t offset, int count, int *eof, | |
2297 | void *data) | |
2298 | { | |
2299 | ||
2300 | adapter_t *adapter = (adapter_t *)data; | |
2301 | volatile mbox_t *mbox = adapter->mbox; | |
2302 | int len = 0; | |
2303 | ||
2304 | len = sprintf(page, "Contents of Mail Box Structure\n"); | |
2305 | len += sprintf(page+len, " Fw Command = 0x%02x\n", | |
2306 | mbox->m_out.cmd); | |
2307 | len += sprintf(page+len, " Cmd Sequence = 0x%02x\n", | |
2308 | mbox->m_out.cmdid); | |
2309 | len += sprintf(page+len, " No of Sectors= %04d\n", | |
2310 | mbox->m_out.numsectors); | |
2311 | len += sprintf(page+len, " LBA = 0x%02x\n", | |
2312 | mbox->m_out.lba); | |
2313 | len += sprintf(page+len, " DTA = 0x%08x\n", | |
2314 | mbox->m_out.xferaddr); | |
2315 | len += sprintf(page+len, " Logical Drive= 0x%02x\n", | |
2316 | mbox->m_out.logdrv); | |
2317 | len += sprintf(page+len, " No of SG Elmt= 0x%02x\n", | |
2318 | mbox->m_out.numsgelements); | |
2319 | len += sprintf(page+len, " Busy = %01x\n", | |
2320 | mbox->m_in.busy); | |
2321 | len += sprintf(page+len, " Status = 0x%02x\n", | |
2322 | mbox->m_in.status); | |
2323 | ||
2324 | *eof = 1; | |
2325 | ||
2326 | return len; | |
2327 | } | |
2328 | ||
2329 | ||
2330 | /** | |
2331 | * proc_rebuild_rate() | |
2332 | * @page - buffer to write the data in | |
2333 | * @start - where the actual data has been written in page | |
2334 | * @offset - same meaning as the read system call | |
2335 | * @count - same meaning as the read system call | |
2336 | * @eof - set if no more data needs to be returned | |
2337 | * @data - pointer to our soft state | |
2338 | * | |
2339 | * Display current rebuild rate | |
2340 | */ | |
2341 | static int | |
2342 | proc_rebuild_rate(char *page, char **start, off_t offset, int count, int *eof, | |
2343 | void *data) | |
2344 | { | |
2345 | adapter_t *adapter = (adapter_t *)data; | |
2346 | dma_addr_t dma_handle; | |
2347 | caddr_t inquiry; | |
2348 | struct pci_dev *pdev; | |
2349 | int len = 0; | |
2350 | ||
2351 | if( make_local_pdev(adapter, &pdev) != 0 ) { | |
2352 | *eof = 1; | |
2353 | return len; | |
2354 | } | |
2355 | ||
2356 | if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL ) { | |
2357 | free_local_pdev(pdev); | |
2358 | *eof = 1; | |
2359 | return len; | |
2360 | } | |
2361 | ||
2362 | if( mega_adapinq(adapter, dma_handle) != 0 ) { | |
2363 | ||
2364 | len = sprintf(page, "Adapter inquiry failed.\n"); | |
2365 | ||
2366 | printk(KERN_WARNING "megaraid: inquiry failed.\n"); | |
2367 | ||
2368 | mega_free_inquiry(inquiry, dma_handle, pdev); | |
2369 | ||
2370 | free_local_pdev(pdev); | |
2371 | ||
2372 | *eof = 1; | |
2373 | ||
2374 | return len; | |
2375 | } | |
2376 | ||
2377 | if( adapter->flag & BOARD_40LD ) { | |
2378 | len = sprintf(page, "Rebuild Rate: [%d%%]\n", | |
2379 | ((mega_inquiry3 *)inquiry)->rebuild_rate); | |
2380 | } | |
2381 | else { | |
2382 | len = sprintf(page, "Rebuild Rate: [%d%%]\n", | |
2383 | ((mraid_ext_inquiry *) | |
2384 | inquiry)->raid_inq.adapter_info.rebuild_rate); | |
2385 | } | |
2386 | ||
2387 | ||
2388 | mega_free_inquiry(inquiry, dma_handle, pdev); | |
2389 | ||
2390 | free_local_pdev(pdev); | |
2391 | ||
2392 | *eof = 1; | |
2393 | ||
2394 | return len; | |
2395 | } | |
2396 | ||
2397 | ||
2398 | /** | |
2399 | * proc_battery() | |
2400 | * @page - buffer to write the data in | |
2401 | * @start - where the actual data has been written in page | |
2402 | * @offset - same meaning as the read system call | |
2403 | * @count - same meaning as the read system call | |
2404 | * @eof - set if no more data needs to be returned | |
2405 | * @data - pointer to our soft state | |
2406 | * | |
2407 | * Display information about the battery module on the controller. | |
2408 | */ | |
2409 | static int | |
2410 | proc_battery(char *page, char **start, off_t offset, int count, int *eof, | |
2411 | void *data) | |
2412 | { | |
2413 | adapter_t *adapter = (adapter_t *)data; | |
2414 | dma_addr_t dma_handle; | |
2415 | caddr_t inquiry; | |
2416 | struct pci_dev *pdev; | |
2417 | u8 battery_status = 0; | |
2418 | char str[256]; | |
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 | battery_status = ((mega_inquiry3 *)inquiry)->battery_status; | |
2449 | } | |
2450 | else { | |
2451 | battery_status = ((mraid_ext_inquiry *)inquiry)-> | |
2452 | raid_inq.adapter_info.battery_status; | |
2453 | } | |
2454 | ||
2455 | /* | |
2456 | * Decode the battery status | |
2457 | */ | |
2458 | sprintf(str, "Battery Status:[%d]", battery_status); | |
2459 | ||
2460 | if(battery_status == MEGA_BATT_CHARGE_DONE) | |
2461 | strcat(str, " Charge Done"); | |
2462 | ||
2463 | if(battery_status & MEGA_BATT_MODULE_MISSING) | |
2464 | strcat(str, " Module Missing"); | |
2465 | ||
2466 | if(battery_status & MEGA_BATT_LOW_VOLTAGE) | |
2467 | strcat(str, " Low Voltage"); | |
2468 | ||
2469 | if(battery_status & MEGA_BATT_TEMP_HIGH) | |
2470 | strcat(str, " Temperature High"); | |
2471 | ||
2472 | if(battery_status & MEGA_BATT_PACK_MISSING) | |
2473 | strcat(str, " Pack Missing"); | |
2474 | ||
2475 | if(battery_status & MEGA_BATT_CHARGE_INPROG) | |
2476 | strcat(str, " Charge In-progress"); | |
2477 | ||
2478 | if(battery_status & MEGA_BATT_CHARGE_FAIL) | |
2479 | strcat(str, " Charge Fail"); | |
2480 | ||
2481 | if(battery_status & MEGA_BATT_CYCLES_EXCEEDED) | |
2482 | strcat(str, " Cycles Exceeded"); | |
2483 | ||
2484 | len = sprintf(page, "%s\n", str); | |
2485 | ||
2486 | ||
2487 | mega_free_inquiry(inquiry, dma_handle, pdev); | |
2488 | ||
2489 | free_local_pdev(pdev); | |
2490 | ||
2491 | *eof = 1; | |
2492 | ||
2493 | return len; | |
2494 | } | |
2495 | ||
2496 | ||
2497 | /** | |
2498 | * proc_pdrv_ch0() | |
2499 | * @page - buffer to write the data in | |
2500 | * @start - where the actual data has been written in page | |
2501 | * @offset - same meaning as the read system call | |
2502 | * @count - same meaning as the read system call | |
2503 | * @eof - set if no more data needs to be returned | |
2504 | * @data - pointer to our soft state | |
2505 | * | |
2506 | * Display information about the physical drives on physical channel 0. | |
2507 | */ | |
2508 | static int | |
2509 | proc_pdrv_ch0(char *page, char **start, off_t offset, int count, int *eof, | |
2510 | void *data) | |
2511 | { | |
2512 | adapter_t *adapter = (adapter_t *)data; | |
2513 | ||
2514 | *eof = 1; | |
2515 | ||
2516 | return (proc_pdrv(adapter, page, 0)); | |
2517 | } | |
2518 | ||
2519 | ||
2520 | /** | |
2521 | * proc_pdrv_ch1() | |
2522 | * @page - buffer to write the data in | |
2523 | * @start - where the actual data has been written in page | |
2524 | * @offset - same meaning as the read system call | |
2525 | * @count - same meaning as the read system call | |
2526 | * @eof - set if no more data needs to be returned | |
2527 | * @data - pointer to our soft state | |
2528 | * | |
2529 | * Display information about the physical drives on physical channel 1. | |
2530 | */ | |
2531 | static int | |
2532 | proc_pdrv_ch1(char *page, char **start, off_t offset, int count, int *eof, | |
2533 | void *data) | |
2534 | { | |
2535 | adapter_t *adapter = (adapter_t *)data; | |
2536 | ||
2537 | *eof = 1; | |
2538 | ||
2539 | return (proc_pdrv(adapter, page, 1)); | |
2540 | } | |
2541 | ||
2542 | ||
2543 | /** | |
2544 | * proc_pdrv_ch2() | |
2545 | * @page - buffer to write the data in | |
2546 | * @start - where the actual data has been written in page | |
2547 | * @offset - same meaning as the read system call | |
2548 | * @count - same meaning as the read system call | |
2549 | * @eof - set if no more data needs to be returned | |
2550 | * @data - pointer to our soft state | |
2551 | * | |
2552 | * Display information about the physical drives on physical channel 2. | |
2553 | */ | |
2554 | static int | |
2555 | proc_pdrv_ch2(char *page, char **start, off_t offset, int count, int *eof, | |
2556 | void *data) | |
2557 | { | |
2558 | adapter_t *adapter = (adapter_t *)data; | |
2559 | ||
2560 | *eof = 1; | |
2561 | ||
2562 | return (proc_pdrv(adapter, page, 2)); | |
2563 | } | |
2564 | ||
2565 | ||
2566 | /** | |
2567 | * proc_pdrv_ch3() | |
2568 | * @page - buffer to write the data in | |
2569 | * @start - where the actual data has been written in page | |
2570 | * @offset - same meaning as the read system call | |
2571 | * @count - same meaning as the read system call | |
2572 | * @eof - set if no more data needs to be returned | |
2573 | * @data - pointer to our soft state | |
2574 | * | |
2575 | * Display information about the physical drives on physical channel 3. | |
2576 | */ | |
2577 | static int | |
2578 | proc_pdrv_ch3(char *page, char **start, off_t offset, int count, int *eof, | |
2579 | void *data) | |
2580 | { | |
2581 | adapter_t *adapter = (adapter_t *)data; | |
2582 | ||
2583 | *eof = 1; | |
2584 | ||
2585 | return (proc_pdrv(adapter, page, 3)); | |
2586 | } | |
2587 | ||
2588 | ||
2589 | /** | |
2590 | * proc_pdrv() | |
2591 | * @page - buffer to write the data in | |
2592 | * @adapter - pointer to our soft state | |
2593 | * | |
2594 | * Display information about the physical drives. | |
2595 | */ | |
2596 | static int | |
2597 | proc_pdrv(adapter_t *adapter, char *page, int channel) | |
2598 | { | |
2599 | dma_addr_t dma_handle; | |
2600 | char *scsi_inq; | |
2601 | dma_addr_t scsi_inq_dma_handle; | |
2602 | caddr_t inquiry; | |
2603 | struct pci_dev *pdev; | |
2604 | u8 *pdrv_state; | |
2605 | u8 state; | |
2606 | int tgt; | |
2607 | int max_channels; | |
2608 | int len = 0; | |
2609 | char str[80]; | |
2610 | int i; | |
2611 | ||
2612 | if( make_local_pdev(adapter, &pdev) != 0 ) { | |
2613 | return len; | |
2614 | } | |
2615 | ||
2616 | if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL ) { | |
2617 | goto free_pdev; | |
2618 | } | |
2619 | ||
2620 | if( mega_adapinq(adapter, dma_handle) != 0 ) { | |
2621 | len = sprintf(page, "Adapter inquiry failed.\n"); | |
2622 | ||
2623 | printk(KERN_WARNING "megaraid: inquiry failed.\n"); | |
2624 | ||
2625 | goto free_inquiry; | |
2626 | } | |
2627 | ||
2628 | ||
2629 | scsi_inq = pci_alloc_consistent(pdev, 256, &scsi_inq_dma_handle); | |
2630 | ||
2631 | if( scsi_inq == NULL ) { | |
2632 | len = sprintf(page, "memory not available for scsi inq.\n"); | |
2633 | ||
2634 | goto free_inquiry; | |
2635 | } | |
2636 | ||
2637 | if( adapter->flag & BOARD_40LD ) { | |
2638 | pdrv_state = ((mega_inquiry3 *)inquiry)->pdrv_state; | |
2639 | } | |
2640 | else { | |
2641 | pdrv_state = ((mraid_ext_inquiry *)inquiry)-> | |
2642 | raid_inq.pdrv_info.pdrv_state; | |
2643 | } | |
2644 | ||
2645 | max_channels = adapter->product_info.nchannels; | |
2646 | ||
2647 | if( channel >= max_channels ) { | |
2648 | goto free_pci; | |
2649 | } | |
2650 | ||
2651 | for( tgt = 0; tgt <= MAX_TARGET; tgt++ ) { | |
2652 | ||
2653 | i = channel*16 + tgt; | |
2654 | ||
2655 | state = *(pdrv_state + i); | |
2656 | ||
2657 | switch( state & 0x0F ) { | |
2658 | ||
2659 | case PDRV_ONLINE: | |
2660 | sprintf(str, | |
2661 | "Channel:%2d Id:%2d State: Online", | |
2662 | channel, tgt); | |
2663 | break; | |
2664 | ||
2665 | case PDRV_FAILED: | |
2666 | sprintf(str, | |
2667 | "Channel:%2d Id:%2d State: Failed", | |
2668 | channel, tgt); | |
2669 | break; | |
2670 | ||
2671 | case PDRV_RBLD: | |
2672 | sprintf(str, | |
2673 | "Channel:%2d Id:%2d State: Rebuild", | |
2674 | channel, tgt); | |
2675 | break; | |
2676 | ||
2677 | case PDRV_HOTSPARE: | |
2678 | sprintf(str, | |
2679 | "Channel:%2d Id:%2d State: Hot spare", | |
2680 | channel, tgt); | |
2681 | break; | |
2682 | ||
2683 | default: | |
2684 | sprintf(str, | |
2685 | "Channel:%2d Id:%2d State: Un-configured", | |
2686 | channel, tgt); | |
2687 | break; | |
2688 | ||
2689 | } | |
2690 | ||
2691 | /* | |
2692 | * This interface displays inquiries for disk drives | |
2693 | * only. Inquries for logical drives and non-disk | |
2694 | * devices are available through /proc/scsi/scsi | |
2695 | */ | |
2696 | memset(scsi_inq, 0, 256); | |
2697 | if( mega_internal_dev_inquiry(adapter, channel, tgt, | |
2698 | scsi_inq_dma_handle) || | |
2699 | (scsi_inq[0] & 0x1F) != TYPE_DISK ) { | |
2700 | continue; | |
2701 | } | |
2702 | ||
2703 | /* | |
2704 | * Check for overflow. We print less than 240 | |
2705 | * characters for inquiry | |
2706 | */ | |
2707 | if( (len + 240) >= PAGE_SIZE ) break; | |
2708 | ||
2709 | len += sprintf(page+len, "%s.\n", str); | |
2710 | ||
2711 | len += mega_print_inquiry(page+len, scsi_inq); | |
2712 | } | |
2713 | ||
2714 | free_pci: | |
2715 | pci_free_consistent(pdev, 256, scsi_inq, scsi_inq_dma_handle); | |
2716 | free_inquiry: | |
2717 | mega_free_inquiry(inquiry, dma_handle, pdev); | |
2718 | free_pdev: | |
2719 | free_local_pdev(pdev); | |
2720 | ||
2721 | return len; | |
2722 | } | |
2723 | ||
2724 | ||
2725 | /* | |
2726 | * Display scsi inquiry | |
2727 | */ | |
2728 | static int | |
2729 | mega_print_inquiry(char *page, char *scsi_inq) | |
2730 | { | |
2731 | int len = 0; | |
2732 | int i; | |
2733 | ||
2734 | len = sprintf(page, " Vendor: "); | |
2735 | for( i = 8; i < 16; i++ ) { | |
2736 | len += sprintf(page+len, "%c", scsi_inq[i]); | |
2737 | } | |
2738 | ||
2739 | len += sprintf(page+len, " Model: "); | |
2740 | ||
2741 | for( i = 16; i < 32; i++ ) { | |
2742 | len += sprintf(page+len, "%c", scsi_inq[i]); | |
2743 | } | |
2744 | ||
2745 | len += sprintf(page+len, " Rev: "); | |
2746 | ||
2747 | for( i = 32; i < 36; i++ ) { | |
2748 | len += sprintf(page+len, "%c", scsi_inq[i]); | |
2749 | } | |
2750 | ||
2751 | len += sprintf(page+len, "\n"); | |
2752 | ||
2753 | i = scsi_inq[0] & 0x1f; | |
2754 | ||
4ff36718 | 2755 | len += sprintf(page+len, " Type: %s ", scsi_device_type(i)); |
1da177e4 LT |
2756 | |
2757 | len += sprintf(page+len, | |
2758 | " ANSI SCSI revision: %02x", scsi_inq[2] & 0x07); | |
2759 | ||
2760 | if( (scsi_inq[2] & 0x07) == 1 && (scsi_inq[3] & 0x0f) == 1 ) | |
2761 | len += sprintf(page+len, " CCS\n"); | |
2762 | else | |
2763 | len += sprintf(page+len, "\n"); | |
2764 | ||
2765 | return len; | |
2766 | } | |
2767 | ||
2768 | ||
2769 | /** | |
2770 | * proc_rdrv_10() | |
2771 | * @page - buffer to write the data in | |
2772 | * @start - where the actual data has been written in page | |
2773 | * @offset - same meaning as the read system call | |
2774 | * @count - same meaning as the read system call | |
2775 | * @eof - set if no more data needs to be returned | |
2776 | * @data - pointer to our soft state | |
2777 | * | |
2778 | * Display real time information about the logical drives 0 through 9. | |
2779 | */ | |
2780 | static int | |
2781 | proc_rdrv_10(char *page, char **start, off_t offset, int count, int *eof, | |
2782 | void *data) | |
2783 | { | |
2784 | adapter_t *adapter = (adapter_t *)data; | |
2785 | ||
2786 | *eof = 1; | |
2787 | ||
2788 | return (proc_rdrv(adapter, page, 0, 9)); | |
2789 | } | |
2790 | ||
2791 | ||
2792 | /** | |
2793 | * proc_rdrv_20() | |
2794 | * @page - buffer to write the data in | |
2795 | * @start - where the actual data has been written in page | |
2796 | * @offset - same meaning as the read system call | |
2797 | * @count - same meaning as the read system call | |
2798 | * @eof - set if no more data needs to be returned | |
2799 | * @data - pointer to our soft state | |
2800 | * | |
2801 | * Display real time information about the logical drives 0 through 9. | |
2802 | */ | |
2803 | static int | |
2804 | proc_rdrv_20(char *page, char **start, off_t offset, int count, int *eof, | |
2805 | void *data) | |
2806 | { | |
2807 | adapter_t *adapter = (adapter_t *)data; | |
2808 | ||
2809 | *eof = 1; | |
2810 | ||
2811 | return (proc_rdrv(adapter, page, 10, 19)); | |
2812 | } | |
2813 | ||
2814 | ||
2815 | /** | |
2816 | * proc_rdrv_30() | |
2817 | * @page - buffer to write the data in | |
2818 | * @start - where the actual data has been written in page | |
2819 | * @offset - same meaning as the read system call | |
2820 | * @count - same meaning as the read system call | |
2821 | * @eof - set if no more data needs to be returned | |
2822 | * @data - pointer to our soft state | |
2823 | * | |
2824 | * Display real time information about the logical drives 0 through 9. | |
2825 | */ | |
2826 | static int | |
2827 | proc_rdrv_30(char *page, char **start, off_t offset, int count, int *eof, | |
2828 | void *data) | |
2829 | { | |
2830 | adapter_t *adapter = (adapter_t *)data; | |
2831 | ||
2832 | *eof = 1; | |
2833 | ||
2834 | return (proc_rdrv(adapter, page, 20, 29)); | |
2835 | } | |
2836 | ||
2837 | ||
2838 | /** | |
2839 | * proc_rdrv_40() | |
2840 | * @page - buffer to write the data in | |
2841 | * @start - where the actual data has been written in page | |
2842 | * @offset - same meaning as the read system call | |
2843 | * @count - same meaning as the read system call | |
2844 | * @eof - set if no more data needs to be returned | |
2845 | * @data - pointer to our soft state | |
2846 | * | |
2847 | * Display real time information about the logical drives 0 through 9. | |
2848 | */ | |
2849 | static int | |
2850 | proc_rdrv_40(char *page, char **start, off_t offset, int count, int *eof, | |
2851 | void *data) | |
2852 | { | |
2853 | adapter_t *adapter = (adapter_t *)data; | |
2854 | ||
2855 | *eof = 1; | |
2856 | ||
2857 | return (proc_rdrv(adapter, page, 30, 39)); | |
2858 | } | |
2859 | ||
2860 | ||
2861 | /** | |
2862 | * proc_rdrv() | |
2863 | * @page - buffer to write the data in | |
2864 | * @adapter - pointer to our soft state | |
2865 | * @start - starting logical drive to display | |
2866 | * @end - ending logical drive to display | |
2867 | * | |
2868 | * We do not print the inquiry information since its already available through | |
2869 | * /proc/scsi/scsi interface | |
2870 | */ | |
2871 | static int | |
2872 | proc_rdrv(adapter_t *adapter, char *page, int start, int end ) | |
2873 | { | |
2874 | dma_addr_t dma_handle; | |
2875 | logdrv_param *lparam; | |
2876 | megacmd_t mc; | |
2877 | char *disk_array; | |
2878 | dma_addr_t disk_array_dma_handle; | |
2879 | caddr_t inquiry; | |
2880 | struct pci_dev *pdev; | |
2881 | u8 *rdrv_state; | |
2882 | int num_ldrv; | |
2883 | u32 array_sz; | |
2884 | int len = 0; | |
2885 | int i; | |
2886 | ||
2887 | if( make_local_pdev(adapter, &pdev) != 0 ) { | |
2888 | return len; | |
2889 | } | |
2890 | ||
2891 | if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL ) { | |
2892 | free_local_pdev(pdev); | |
2893 | return len; | |
2894 | } | |
2895 | ||
2896 | if( mega_adapinq(adapter, dma_handle) != 0 ) { | |
2897 | ||
2898 | len = sprintf(page, "Adapter inquiry failed.\n"); | |
2899 | ||
2900 | printk(KERN_WARNING "megaraid: inquiry failed.\n"); | |
2901 | ||
2902 | mega_free_inquiry(inquiry, dma_handle, pdev); | |
2903 | ||
2904 | free_local_pdev(pdev); | |
2905 | ||
2906 | return len; | |
2907 | } | |
2908 | ||
2909 | memset(&mc, 0, sizeof(megacmd_t)); | |
2910 | ||
2911 | if( adapter->flag & BOARD_40LD ) { | |
2912 | array_sz = sizeof(disk_array_40ld); | |
2913 | ||
2914 | rdrv_state = ((mega_inquiry3 *)inquiry)->ldrv_state; | |
2915 | ||
2916 | num_ldrv = ((mega_inquiry3 *)inquiry)->num_ldrv; | |
2917 | } | |
2918 | else { | |
2919 | array_sz = sizeof(disk_array_8ld); | |
2920 | ||
2921 | rdrv_state = ((mraid_ext_inquiry *)inquiry)-> | |
2922 | raid_inq.logdrv_info.ldrv_state; | |
2923 | ||
2924 | num_ldrv = ((mraid_ext_inquiry *)inquiry)-> | |
2925 | raid_inq.logdrv_info.num_ldrv; | |
2926 | } | |
2927 | ||
2928 | disk_array = pci_alloc_consistent(pdev, array_sz, | |
2929 | &disk_array_dma_handle); | |
2930 | ||
2931 | if( disk_array == NULL ) { | |
2932 | len = sprintf(page, "memory not available.\n"); | |
2933 | ||
2934 | mega_free_inquiry(inquiry, dma_handle, pdev); | |
2935 | ||
2936 | free_local_pdev(pdev); | |
2937 | ||
2938 | return len; | |
2939 | } | |
2940 | ||
2941 | mc.xferaddr = (u32)disk_array_dma_handle; | |
2942 | ||
2943 | if( adapter->flag & BOARD_40LD ) { | |
2944 | mc.cmd = FC_NEW_CONFIG; | |
2945 | mc.opcode = OP_DCMD_READ_CONFIG; | |
2946 | ||
cb0258a2 | 2947 | if( mega_internal_command(adapter, &mc, NULL) ) { |
1da177e4 LT |
2948 | |
2949 | len = sprintf(page, "40LD read config failed.\n"); | |
2950 | ||
2951 | mega_free_inquiry(inquiry, dma_handle, pdev); | |
2952 | ||
2953 | pci_free_consistent(pdev, array_sz, disk_array, | |
2954 | disk_array_dma_handle); | |
2955 | ||
2956 | free_local_pdev(pdev); | |
2957 | ||
2958 | return len; | |
2959 | } | |
2960 | ||
2961 | } | |
2962 | else { | |
2963 | mc.cmd = NEW_READ_CONFIG_8LD; | |
2964 | ||
cb0258a2 | 2965 | if( mega_internal_command(adapter, &mc, NULL) ) { |
1da177e4 LT |
2966 | |
2967 | mc.cmd = READ_CONFIG_8LD; | |
2968 | ||
cb0258a2 | 2969 | if( mega_internal_command(adapter, &mc, |
1da177e4 LT |
2970 | NULL) ){ |
2971 | ||
2972 | len = sprintf(page, | |
2973 | "8LD read config failed.\n"); | |
2974 | ||
2975 | mega_free_inquiry(inquiry, dma_handle, pdev); | |
2976 | ||
2977 | pci_free_consistent(pdev, array_sz, | |
2978 | disk_array, | |
2979 | disk_array_dma_handle); | |
2980 | ||
2981 | free_local_pdev(pdev); | |
2982 | ||
2983 | return len; | |
2984 | } | |
2985 | } | |
2986 | } | |
2987 | ||
2988 | for( i = start; i < ( (end+1 < num_ldrv) ? end+1 : num_ldrv ); i++ ) { | |
2989 | ||
2990 | if( adapter->flag & BOARD_40LD ) { | |
2991 | lparam = | |
2992 | &((disk_array_40ld *)disk_array)->ldrv[i].lparam; | |
2993 | } | |
2994 | else { | |
2995 | lparam = | |
2996 | &((disk_array_8ld *)disk_array)->ldrv[i].lparam; | |
2997 | } | |
2998 | ||
2999 | /* | |
3000 | * Check for overflow. We print less than 240 characters for | |
3001 | * information about each logical drive. | |
3002 | */ | |
3003 | if( (len + 240) >= PAGE_SIZE ) break; | |
3004 | ||
3005 | len += sprintf(page+len, "Logical drive:%2d:, ", i); | |
3006 | ||
3007 | switch( rdrv_state[i] & 0x0F ) { | |
3008 | case RDRV_OFFLINE: | |
3009 | len += sprintf(page+len, "state: offline"); | |
3010 | break; | |
3011 | ||
3012 | case RDRV_DEGRADED: | |
3013 | len += sprintf(page+len, "state: degraded"); | |
3014 | break; | |
3015 | ||
3016 | case RDRV_OPTIMAL: | |
3017 | len += sprintf(page+len, "state: optimal"); | |
3018 | break; | |
3019 | ||
3020 | case RDRV_DELETED: | |
3021 | len += sprintf(page+len, "state: deleted"); | |
3022 | break; | |
3023 | ||
3024 | default: | |
3025 | len += sprintf(page+len, "state: unknown"); | |
3026 | break; | |
3027 | } | |
3028 | ||
3029 | /* | |
3030 | * Check if check consistency or initialization is going on | |
3031 | * for this logical drive. | |
3032 | */ | |
3033 | if( (rdrv_state[i] & 0xF0) == 0x20 ) { | |
3034 | len += sprintf(page+len, | |
3035 | ", check-consistency in progress"); | |
3036 | } | |
3037 | else if( (rdrv_state[i] & 0xF0) == 0x10 ) { | |
3038 | len += sprintf(page+len, | |
3039 | ", initialization in progress"); | |
3040 | } | |
3041 | ||
3042 | len += sprintf(page+len, "\n"); | |
3043 | ||
3044 | len += sprintf(page+len, "Span depth:%3d, ", | |
3045 | lparam->span_depth); | |
3046 | ||
3047 | len += sprintf(page+len, "RAID level:%3d, ", | |
3048 | lparam->level); | |
3049 | ||
3050 | len += sprintf(page+len, "Stripe size:%3d, ", | |
3051 | lparam->stripe_sz ? lparam->stripe_sz/2: 128); | |
3052 | ||
3053 | len += sprintf(page+len, "Row size:%3d\n", | |
3054 | lparam->row_size); | |
3055 | ||
3056 | ||
3057 | len += sprintf(page+len, "Read Policy: "); | |
3058 | ||
3059 | switch(lparam->read_ahead) { | |
3060 | ||
3061 | case NO_READ_AHEAD: | |
3062 | len += sprintf(page+len, "No read ahead, "); | |
3063 | break; | |
3064 | ||
3065 | case READ_AHEAD: | |
3066 | len += sprintf(page+len, "Read ahead, "); | |
3067 | break; | |
3068 | ||
3069 | case ADAP_READ_AHEAD: | |
3070 | len += sprintf(page+len, "Adaptive, "); | |
3071 | break; | |
3072 | ||
3073 | } | |
3074 | ||
3075 | len += sprintf(page+len, "Write Policy: "); | |
3076 | ||
3077 | switch(lparam->write_mode) { | |
3078 | ||
3079 | case WRMODE_WRITE_THRU: | |
3080 | len += sprintf(page+len, "Write thru, "); | |
3081 | break; | |
3082 | ||
3083 | case WRMODE_WRITE_BACK: | |
3084 | len += sprintf(page+len, "Write back, "); | |
3085 | break; | |
3086 | } | |
3087 | ||
3088 | len += sprintf(page+len, "Cache Policy: "); | |
3089 | ||
3090 | switch(lparam->direct_io) { | |
3091 | ||
3092 | case CACHED_IO: | |
3093 | len += sprintf(page+len, "Cached IO\n\n"); | |
3094 | break; | |
3095 | ||
3096 | case DIRECT_IO: | |
3097 | len += sprintf(page+len, "Direct IO\n\n"); | |
3098 | break; | |
3099 | } | |
3100 | } | |
3101 | ||
3102 | mega_free_inquiry(inquiry, dma_handle, pdev); | |
3103 | ||
3104 | pci_free_consistent(pdev, array_sz, disk_array, | |
3105 | disk_array_dma_handle); | |
3106 | ||
3107 | free_local_pdev(pdev); | |
3108 | ||
3109 | return len; | |
3110 | } | |
84a3c97b | 3111 | #else |
3112 | static inline void mega_create_proc_entry(int index, struct proc_dir_entry *parent) | |
3113 | { | |
3114 | } | |
1da177e4 LT |
3115 | #endif |
3116 | ||
3117 | ||
3118 | /** | |
3119 | * megaraid_biosparam() | |
3120 | * | |
3121 | * Return the disk geometry for a particular disk | |
3122 | */ | |
3123 | static int | |
3124 | megaraid_biosparam(struct scsi_device *sdev, struct block_device *bdev, | |
3125 | sector_t capacity, int geom[]) | |
3126 | { | |
3127 | adapter_t *adapter; | |
3128 | unsigned char *bh; | |
3129 | int heads; | |
3130 | int sectors; | |
3131 | int cylinders; | |
3132 | int rval; | |
3133 | ||
3134 | /* Get pointer to host config structure */ | |
3135 | adapter = (adapter_t *)sdev->host->hostdata; | |
3136 | ||
3137 | if (IS_RAID_CH(adapter, sdev->channel)) { | |
3138 | /* Default heads (64) & sectors (32) */ | |
3139 | heads = 64; | |
3140 | sectors = 32; | |
3141 | cylinders = (ulong)capacity / (heads * sectors); | |
3142 | ||
3143 | /* | |
3144 | * Handle extended translation size for logical drives | |
3145 | * > 1Gb | |
3146 | */ | |
3147 | if ((ulong)capacity >= 0x200000) { | |
3148 | heads = 255; | |
3149 | sectors = 63; | |
3150 | cylinders = (ulong)capacity / (heads * sectors); | |
3151 | } | |
3152 | ||
3153 | /* return result */ | |
3154 | geom[0] = heads; | |
3155 | geom[1] = sectors; | |
3156 | geom[2] = cylinders; | |
3157 | } | |
3158 | else { | |
3159 | bh = scsi_bios_ptable(bdev); | |
3160 | ||
3161 | if( bh ) { | |
3162 | rval = scsi_partsize(bh, capacity, | |
3163 | &geom[2], &geom[0], &geom[1]); | |
3164 | kfree(bh); | |
3165 | if( rval != -1 ) | |
3166 | return rval; | |
3167 | } | |
3168 | ||
3169 | printk(KERN_INFO | |
3170 | "megaraid: invalid partition on this disk on channel %d\n", | |
3171 | sdev->channel); | |
3172 | ||
3173 | /* Default heads (64) & sectors (32) */ | |
3174 | heads = 64; | |
3175 | sectors = 32; | |
3176 | cylinders = (ulong)capacity / (heads * sectors); | |
3177 | ||
3178 | /* Handle extended translation size for logical drives > 1Gb */ | |
3179 | if ((ulong)capacity >= 0x200000) { | |
3180 | heads = 255; | |
3181 | sectors = 63; | |
3182 | cylinders = (ulong)capacity / (heads * sectors); | |
3183 | } | |
3184 | ||
3185 | /* return result */ | |
3186 | geom[0] = heads; | |
3187 | geom[1] = sectors; | |
3188 | geom[2] = cylinders; | |
3189 | } | |
3190 | ||
3191 | return 0; | |
3192 | } | |
3193 | ||
3194 | /** | |
3195 | * mega_init_scb() | |
3196 | * @adapter - pointer to our soft state | |
3197 | * | |
3198 | * Allocate memory for the various pointers in the scb structures: | |
3199 | * scatter-gather list pointer, passthru and extended passthru structure | |
3200 | * pointers. | |
3201 | */ | |
3202 | static int | |
3203 | mega_init_scb(adapter_t *adapter) | |
3204 | { | |
3205 | scb_t *scb; | |
3206 | int i; | |
3207 | ||
3208 | for( i = 0; i < adapter->max_cmds; i++ ) { | |
3209 | ||
3210 | scb = &adapter->scb_list[i]; | |
3211 | ||
3212 | scb->sgl64 = NULL; | |
3213 | scb->sgl = NULL; | |
3214 | scb->pthru = NULL; | |
3215 | scb->epthru = NULL; | |
3216 | } | |
3217 | ||
3218 | for( i = 0; i < adapter->max_cmds; i++ ) { | |
3219 | ||
3220 | scb = &adapter->scb_list[i]; | |
3221 | ||
3222 | scb->idx = i; | |
3223 | ||
3224 | scb->sgl64 = pci_alloc_consistent(adapter->dev, | |
3225 | sizeof(mega_sgl64) * adapter->sglen, | |
3226 | &scb->sgl_dma_addr); | |
3227 | ||
3228 | scb->sgl = (mega_sglist *)scb->sgl64; | |
3229 | ||
3230 | if( !scb->sgl ) { | |
3231 | printk(KERN_WARNING "RAID: Can't allocate sglist.\n"); | |
3232 | mega_free_sgl(adapter); | |
3233 | return -1; | |
3234 | } | |
3235 | ||
3236 | scb->pthru = pci_alloc_consistent(adapter->dev, | |
3237 | sizeof(mega_passthru), | |
3238 | &scb->pthru_dma_addr); | |
3239 | ||
3240 | if( !scb->pthru ) { | |
3241 | printk(KERN_WARNING "RAID: Can't allocate passthru.\n"); | |
3242 | mega_free_sgl(adapter); | |
3243 | return -1; | |
3244 | } | |
3245 | ||
3246 | scb->epthru = pci_alloc_consistent(adapter->dev, | |
3247 | sizeof(mega_ext_passthru), | |
3248 | &scb->epthru_dma_addr); | |
3249 | ||
3250 | if( !scb->epthru ) { | |
3251 | printk(KERN_WARNING | |
3252 | "Can't allocate extended passthru.\n"); | |
3253 | mega_free_sgl(adapter); | |
3254 | return -1; | |
3255 | } | |
3256 | ||
3257 | ||
3258 | scb->dma_type = MEGA_DMA_TYPE_NONE; | |
3259 | ||
3260 | /* | |
3261 | * Link to free list | |
3262 | * lock not required since we are loading the driver, so no | |
3263 | * commands possible right now. | |
3264 | */ | |
3265 | scb->state = SCB_FREE; | |
3266 | scb->cmd = NULL; | |
3267 | list_add(&scb->list, &adapter->free_list); | |
3268 | } | |
3269 | ||
3270 | return 0; | |
3271 | } | |
3272 | ||
3273 | ||
3274 | /** | |
3275 | * megadev_open() | |
3276 | * @inode - unused | |
3277 | * @filep - unused | |
3278 | * | |
3279 | * Routines for the character/ioctl interface to the driver. Find out if this | |
d21c95c5 | 3280 | * is a valid open. |
1da177e4 LT |
3281 | */ |
3282 | static int | |
3283 | megadev_open (struct inode *inode, struct file *filep) | |
3284 | { | |
f2b9857e | 3285 | cycle_kernel_lock(); |
1da177e4 LT |
3286 | /* |
3287 | * Only allow superuser to access private ioctl interface | |
3288 | */ | |
3289 | if( !capable(CAP_SYS_ADMIN) ) return -EACCES; | |
3290 | ||
3291 | return 0; | |
3292 | } | |
3293 | ||
3294 | ||
3295 | /** | |
3296 | * megadev_ioctl() | |
3297 | * @inode - Our device inode | |
3298 | * @filep - unused | |
3299 | * @cmd - ioctl command | |
3300 | * @arg - user buffer | |
3301 | * | |
3302 | * ioctl entry point for our private ioctl interface. We move the data in from | |
3303 | * the user space, prepare the command (if necessary, convert the old MIMD | |
3304 | * ioctl to new ioctl command), and issue a synchronous command to the | |
3305 | * controller. | |
3306 | */ | |
3307 | static int | |
f4927c45 | 3308 | megadev_ioctl(struct file *filep, unsigned int cmd, unsigned long arg) |
1da177e4 LT |
3309 | { |
3310 | adapter_t *adapter; | |
3311 | nitioctl_t uioc; | |
3312 | int adapno; | |
3313 | int rval; | |
3314 | mega_passthru __user *upthru; /* user address for passthru */ | |
3315 | mega_passthru *pthru; /* copy user passthru here */ | |
3316 | dma_addr_t pthru_dma_hndl; | |
3317 | void *data = NULL; /* data to be transferred */ | |
3318 | dma_addr_t data_dma_hndl; /* dma handle for data xfer area */ | |
3319 | megacmd_t mc; | |
3320 | megastat_t __user *ustats; | |
3321 | int num_ldrv; | |
3322 | u32 uxferaddr = 0; | |
3323 | struct pci_dev *pdev; | |
3324 | ||
3325 | ustats = NULL; /* avoid compilation warnings */ | |
3326 | num_ldrv = 0; | |
3327 | ||
3328 | /* | |
3329 | * Make sure only USCSICMD are issued through this interface. | |
3330 | * MIMD application would still fire different command. | |
3331 | */ | |
3332 | if( (_IOC_TYPE(cmd) != MEGAIOC_MAGIC) && (cmd != USCSICMD) ) { | |
3333 | return -EINVAL; | |
3334 | } | |
3335 | ||
3336 | /* | |
3337 | * Check and convert a possible MIMD command to NIT command. | |
3338 | * mega_m_to_n() copies the data from the user space, so we do not | |
3339 | * have to do it here. | |
3340 | * NOTE: We will need some user address to copyout the data, therefore | |
3341 | * the inteface layer will also provide us with the required user | |
3342 | * addresses. | |
3343 | */ | |
3344 | memset(&uioc, 0, sizeof(nitioctl_t)); | |
3345 | if( (rval = mega_m_to_n( (void __user *)arg, &uioc)) != 0 ) | |
3346 | return rval; | |
3347 | ||
3348 | ||
3349 | switch( uioc.opcode ) { | |
3350 | ||
3351 | case GET_DRIVER_VER: | |
3352 | if( put_user(driver_ver, (u32 __user *)uioc.uioc_uaddr) ) | |
3353 | return (-EFAULT); | |
3354 | ||
3355 | break; | |
3356 | ||
3357 | case GET_N_ADAP: | |
3358 | if( put_user(hba_count, (u32 __user *)uioc.uioc_uaddr) ) | |
3359 | return (-EFAULT); | |
3360 | ||
3361 | /* | |
3362 | * Shucks. MIMD interface returns a positive value for number | |
3363 | * of adapters. TODO: Change it to return 0 when there is no | |
3364 | * applicatio using mimd interface. | |
3365 | */ | |
3366 | return hba_count; | |
3367 | ||
3368 | case GET_ADAP_INFO: | |
3369 | ||
3370 | /* | |
3371 | * Which adapter | |
3372 | */ | |
3373 | if( (adapno = GETADAP(uioc.adapno)) >= hba_count ) | |
3374 | return (-ENODEV); | |
3375 | ||
3376 | if( copy_to_user(uioc.uioc_uaddr, mcontroller+adapno, | |
3377 | sizeof(struct mcontroller)) ) | |
3378 | return (-EFAULT); | |
3379 | break; | |
3380 | ||
3381 | #if MEGA_HAVE_STATS | |
3382 | ||
3383 | case GET_STATS: | |
3384 | /* | |
3385 | * Which adapter | |
3386 | */ | |
3387 | if( (adapno = GETADAP(uioc.adapno)) >= hba_count ) | |
3388 | return (-ENODEV); | |
3389 | ||
3390 | adapter = hba_soft_state[adapno]; | |
3391 | ||
3392 | ustats = uioc.uioc_uaddr; | |
3393 | ||
3394 | if( copy_from_user(&num_ldrv, &ustats->num_ldrv, sizeof(int)) ) | |
3395 | return (-EFAULT); | |
3396 | ||
3397 | /* | |
3398 | * Check for the validity of the logical drive number | |
3399 | */ | |
3400 | if( num_ldrv >= MAX_LOGICAL_DRIVES_40LD ) return -EINVAL; | |
3401 | ||
3402 | if( copy_to_user(ustats->nreads, adapter->nreads, | |
3403 | num_ldrv*sizeof(u32)) ) | |
3404 | return -EFAULT; | |
3405 | ||
3406 | if( copy_to_user(ustats->nreadblocks, adapter->nreadblocks, | |
3407 | num_ldrv*sizeof(u32)) ) | |
3408 | return -EFAULT; | |
3409 | ||
3410 | if( copy_to_user(ustats->nwrites, adapter->nwrites, | |
3411 | num_ldrv*sizeof(u32)) ) | |
3412 | return -EFAULT; | |
3413 | ||
3414 | if( copy_to_user(ustats->nwriteblocks, adapter->nwriteblocks, | |
3415 | num_ldrv*sizeof(u32)) ) | |
3416 | return -EFAULT; | |
3417 | ||
3418 | if( copy_to_user(ustats->rd_errors, adapter->rd_errors, | |
3419 | num_ldrv*sizeof(u32)) ) | |
3420 | return -EFAULT; | |
3421 | ||
3422 | if( copy_to_user(ustats->wr_errors, adapter->wr_errors, | |
3423 | num_ldrv*sizeof(u32)) ) | |
3424 | return -EFAULT; | |
3425 | ||
3426 | return 0; | |
3427 | ||
3428 | #endif | |
3429 | case MBOX_CMD: | |
3430 | ||
3431 | /* | |
3432 | * Which adapter | |
3433 | */ | |
3434 | if( (adapno = GETADAP(uioc.adapno)) >= hba_count ) | |
3435 | return (-ENODEV); | |
3436 | ||
3437 | adapter = hba_soft_state[adapno]; | |
3438 | ||
3439 | /* | |
3440 | * Deletion of logical drive is a special case. The adapter | |
3441 | * should be quiescent before this command is issued. | |
3442 | */ | |
3443 | if( uioc.uioc_rmbox[0] == FC_DEL_LOGDRV && | |
3444 | uioc.uioc_rmbox[2] == OP_DEL_LOGDRV ) { | |
3445 | ||
3446 | /* | |
3447 | * Do we support this feature | |
3448 | */ | |
3449 | if( !adapter->support_random_del ) { | |
3450 | printk(KERN_WARNING "megaraid: logdrv "); | |
3451 | printk("delete on non-supporting F/W.\n"); | |
3452 | ||
3453 | return (-EINVAL); | |
3454 | } | |
3455 | ||
3456 | rval = mega_del_logdrv( adapter, uioc.uioc_rmbox[3] ); | |
3457 | ||
3458 | if( rval == 0 ) { | |
3459 | memset(&mc, 0, sizeof(megacmd_t)); | |
3460 | ||
3461 | mc.status = rval; | |
3462 | ||
3463 | rval = mega_n_to_m((void __user *)arg, &mc); | |
3464 | } | |
3465 | ||
3466 | return rval; | |
3467 | } | |
3468 | /* | |
3469 | * This interface only support the regular passthru commands. | |
3470 | * Reject extended passthru and 64-bit passthru | |
3471 | */ | |
3472 | if( uioc.uioc_rmbox[0] == MEGA_MBOXCMD_PASSTHRU64 || | |
3473 | uioc.uioc_rmbox[0] == MEGA_MBOXCMD_EXTPTHRU ) { | |
3474 | ||
3475 | printk(KERN_WARNING "megaraid: rejected passthru.\n"); | |
3476 | ||
3477 | return (-EINVAL); | |
3478 | } | |
3479 | ||
3480 | /* | |
3481 | * For all internal commands, the buffer must be allocated in | |
3482 | * <4GB address range | |
3483 | */ | |
3484 | if( make_local_pdev(adapter, &pdev) != 0 ) | |
3485 | return -EIO; | |
3486 | ||
3487 | /* Is it a passthru command or a DCMD */ | |
3488 | if( uioc.uioc_rmbox[0] == MEGA_MBOXCMD_PASSTHRU ) { | |
3489 | /* Passthru commands */ | |
3490 | ||
3491 | pthru = pci_alloc_consistent(pdev, | |
3492 | sizeof(mega_passthru), | |
3493 | &pthru_dma_hndl); | |
3494 | ||
3495 | if( pthru == NULL ) { | |
3496 | free_local_pdev(pdev); | |
3497 | return (-ENOMEM); | |
3498 | } | |
3499 | ||
3500 | /* | |
3501 | * The user passthru structure | |
3502 | */ | |
de5952e9 | 3503 | upthru = (mega_passthru __user *)(unsigned long)MBOX(uioc)->xferaddr; |
1da177e4 LT |
3504 | |
3505 | /* | |
3506 | * Copy in the user passthru here. | |
3507 | */ | |
3508 | if( copy_from_user(pthru, upthru, | |
3509 | sizeof(mega_passthru)) ) { | |
3510 | ||
3511 | pci_free_consistent(pdev, | |
3512 | sizeof(mega_passthru), pthru, | |
3513 | pthru_dma_hndl); | |
3514 | ||
3515 | free_local_pdev(pdev); | |
3516 | ||
3517 | return (-EFAULT); | |
3518 | } | |
3519 | ||
3520 | /* | |
3521 | * Is there a data transfer | |
3522 | */ | |
3523 | if( pthru->dataxferlen ) { | |
3524 | data = pci_alloc_consistent(pdev, | |
3525 | pthru->dataxferlen, | |
3526 | &data_dma_hndl); | |
3527 | ||
3528 | if( data == NULL ) { | |
3529 | pci_free_consistent(pdev, | |
3530 | sizeof(mega_passthru), | |
3531 | pthru, | |
3532 | pthru_dma_hndl); | |
3533 | ||
3534 | free_local_pdev(pdev); | |
3535 | ||
3536 | return (-ENOMEM); | |
3537 | } | |
3538 | ||
3539 | /* | |
3540 | * Save the user address and point the kernel | |
3541 | * address at just allocated memory | |
3542 | */ | |
3543 | uxferaddr = pthru->dataxferaddr; | |
3544 | pthru->dataxferaddr = data_dma_hndl; | |
3545 | } | |
3546 | ||
3547 | ||
3548 | /* | |
3549 | * Is data coming down-stream | |
3550 | */ | |
3551 | if( pthru->dataxferlen && (uioc.flags & UIOC_WR) ) { | |
3552 | /* | |
3553 | * Get the user data | |
3554 | */ | |
de5952e9 | 3555 | if( copy_from_user(data, (char __user *)(unsigned long) uxferaddr, |
1da177e4 LT |
3556 | pthru->dataxferlen) ) { |
3557 | rval = (-EFAULT); | |
3558 | goto freemem_and_return; | |
3559 | } | |
3560 | } | |
3561 | ||
3562 | memset(&mc, 0, sizeof(megacmd_t)); | |
3563 | ||
3564 | mc.cmd = MEGA_MBOXCMD_PASSTHRU; | |
3565 | mc.xferaddr = (u32)pthru_dma_hndl; | |
3566 | ||
3567 | /* | |
3568 | * Issue the command | |
3569 | */ | |
cb0258a2 | 3570 | mega_internal_command(adapter, &mc, pthru); |
1da177e4 LT |
3571 | |
3572 | rval = mega_n_to_m((void __user *)arg, &mc); | |
3573 | ||
3574 | if( rval ) goto freemem_and_return; | |
3575 | ||
3576 | ||
3577 | /* | |
3578 | * Is data going up-stream | |
3579 | */ | |
3580 | if( pthru->dataxferlen && (uioc.flags & UIOC_RD) ) { | |
de5952e9 | 3581 | if( copy_to_user((char __user *)(unsigned long) uxferaddr, data, |
1da177e4 LT |
3582 | pthru->dataxferlen) ) { |
3583 | rval = (-EFAULT); | |
3584 | } | |
3585 | } | |
3586 | ||
3587 | /* | |
3588 | * Send the request sense data also, irrespective of | |
3589 | * whether the user has asked for it or not. | |
3590 | */ | |
2d2f8d59 JJ |
3591 | if (copy_to_user(upthru->reqsensearea, |
3592 | pthru->reqsensearea, 14)) | |
3593 | rval = -EFAULT; | |
1da177e4 LT |
3594 | |
3595 | freemem_and_return: | |
3596 | if( pthru->dataxferlen ) { | |
3597 | pci_free_consistent(pdev, | |
3598 | pthru->dataxferlen, data, | |
3599 | data_dma_hndl); | |
3600 | } | |
3601 | ||
3602 | pci_free_consistent(pdev, sizeof(mega_passthru), | |
3603 | pthru, pthru_dma_hndl); | |
3604 | ||
3605 | free_local_pdev(pdev); | |
3606 | ||
3607 | return rval; | |
3608 | } | |
3609 | else { | |
3610 | /* DCMD commands */ | |
3611 | ||
3612 | /* | |
3613 | * Is there a data transfer | |
3614 | */ | |
3615 | if( uioc.xferlen ) { | |
3616 | data = pci_alloc_consistent(pdev, | |
3617 | uioc.xferlen, &data_dma_hndl); | |
3618 | ||
3619 | if( data == NULL ) { | |
3620 | free_local_pdev(pdev); | |
3621 | return (-ENOMEM); | |
3622 | } | |
3623 | ||
3624 | uxferaddr = MBOX(uioc)->xferaddr; | |
3625 | } | |
3626 | ||
3627 | /* | |
3628 | * Is data coming down-stream | |
3629 | */ | |
3630 | if( uioc.xferlen && (uioc.flags & UIOC_WR) ) { | |
3631 | /* | |
3632 | * Get the user data | |
3633 | */ | |
de5952e9 | 3634 | if( copy_from_user(data, (char __user *)(unsigned long) uxferaddr, |
1da177e4 LT |
3635 | uioc.xferlen) ) { |
3636 | ||
3637 | pci_free_consistent(pdev, | |
3638 | uioc.xferlen, | |
3639 | data, data_dma_hndl); | |
3640 | ||
3641 | free_local_pdev(pdev); | |
3642 | ||
3643 | return (-EFAULT); | |
3644 | } | |
3645 | } | |
3646 | ||
3647 | memcpy(&mc, MBOX(uioc), sizeof(megacmd_t)); | |
3648 | ||
3649 | mc.xferaddr = (u32)data_dma_hndl; | |
3650 | ||
3651 | /* | |
3652 | * Issue the command | |
3653 | */ | |
cb0258a2 | 3654 | mega_internal_command(adapter, &mc, NULL); |
1da177e4 LT |
3655 | |
3656 | rval = mega_n_to_m((void __user *)arg, &mc); | |
3657 | ||
3658 | if( rval ) { | |
3659 | if( uioc.xferlen ) { | |
3660 | pci_free_consistent(pdev, | |
3661 | uioc.xferlen, data, | |
3662 | data_dma_hndl); | |
3663 | } | |
3664 | ||
3665 | free_local_pdev(pdev); | |
3666 | ||
3667 | return rval; | |
3668 | } | |
3669 | ||
3670 | /* | |
3671 | * Is data going up-stream | |
3672 | */ | |
3673 | if( uioc.xferlen && (uioc.flags & UIOC_RD) ) { | |
de5952e9 | 3674 | if( copy_to_user((char __user *)(unsigned long) uxferaddr, data, |
1da177e4 LT |
3675 | uioc.xferlen) ) { |
3676 | ||
3677 | rval = (-EFAULT); | |
3678 | } | |
3679 | } | |
3680 | ||
3681 | if( uioc.xferlen ) { | |
3682 | pci_free_consistent(pdev, | |
3683 | uioc.xferlen, data, | |
3684 | data_dma_hndl); | |
3685 | } | |
3686 | ||
3687 | free_local_pdev(pdev); | |
3688 | ||
3689 | return rval; | |
3690 | } | |
3691 | ||
3692 | default: | |
3693 | return (-EINVAL); | |
3694 | } | |
3695 | ||
3696 | return 0; | |
3697 | } | |
3698 | ||
f4927c45 AB |
3699 | static long |
3700 | megadev_unlocked_ioctl(struct file *filep, unsigned int cmd, unsigned long arg) | |
3701 | { | |
3702 | int ret; | |
3703 | ||
3704 | lock_kernel(); | |
3705 | ret = megadev_ioctl(filep, cmd, arg); | |
3706 | unlock_kernel(); | |
3707 | ||
3708 | return ret; | |
3709 | } | |
3710 | ||
1da177e4 LT |
3711 | /** |
3712 | * mega_m_to_n() | |
3713 | * @arg - user address | |
3714 | * @uioc - new ioctl structure | |
3715 | * | |
3716 | * A thin layer to convert older mimd interface ioctl structure to NIT ioctl | |
3717 | * structure | |
3718 | * | |
3719 | * Converts the older mimd ioctl structure to newer NIT structure | |
3720 | */ | |
3721 | static int | |
3722 | mega_m_to_n(void __user *arg, nitioctl_t *uioc) | |
3723 | { | |
3724 | struct uioctl_t uioc_mimd; | |
3725 | char signature[8] = {0}; | |
3726 | u8 opcode; | |
3727 | u8 subopcode; | |
3728 | ||
3729 | ||
3730 | /* | |
3731 | * check is the application conforms to NIT. We do not have to do much | |
3732 | * in that case. | |
3733 | * We exploit the fact that the signature is stored in the very | |
3734 | * begining of the structure. | |
3735 | */ | |
3736 | ||
3737 | if( copy_from_user(signature, arg, 7) ) | |
3738 | return (-EFAULT); | |
3739 | ||
3740 | if( memcmp(signature, "MEGANIT", 7) == 0 ) { | |
3741 | ||
3742 | /* | |
3743 | * NOTE NOTE: The nit ioctl is still under flux because of | |
3744 | * change of mailbox definition, in HPE. No applications yet | |
3745 | * use this interface and let's not have applications use this | |
3746 | * interface till the new specifitions are in place. | |
3747 | */ | |
3748 | return -EINVAL; | |
3749 | #if 0 | |
3750 | if( copy_from_user(uioc, arg, sizeof(nitioctl_t)) ) | |
3751 | return (-EFAULT); | |
3752 | return 0; | |
3753 | #endif | |
3754 | } | |
3755 | ||
3756 | /* | |
3757 | * Else assume we have mimd uioctl_t as arg. Convert to nitioctl_t | |
3758 | * | |
3759 | * Get the user ioctl structure | |
3760 | */ | |
3761 | if( copy_from_user(&uioc_mimd, arg, sizeof(struct uioctl_t)) ) | |
3762 | return (-EFAULT); | |
3763 | ||
3764 | ||
3765 | /* | |
3766 | * Get the opcode and subopcode for the commands | |
3767 | */ | |
3768 | opcode = uioc_mimd.ui.fcs.opcode; | |
3769 | subopcode = uioc_mimd.ui.fcs.subopcode; | |
3770 | ||
3771 | switch (opcode) { | |
3772 | case 0x82: | |
3773 | ||
3774 | switch (subopcode) { | |
3775 | ||
3776 | case MEGAIOC_QDRVRVER: /* Query driver version */ | |
3777 | uioc->opcode = GET_DRIVER_VER; | |
3778 | uioc->uioc_uaddr = uioc_mimd.data; | |
3779 | break; | |
3780 | ||
3781 | case MEGAIOC_QNADAP: /* Get # of adapters */ | |
3782 | uioc->opcode = GET_N_ADAP; | |
3783 | uioc->uioc_uaddr = uioc_mimd.data; | |
3784 | break; | |
3785 | ||
3786 | case MEGAIOC_QADAPINFO: /* Get adapter information */ | |
3787 | uioc->opcode = GET_ADAP_INFO; | |
3788 | uioc->adapno = uioc_mimd.ui.fcs.adapno; | |
3789 | uioc->uioc_uaddr = uioc_mimd.data; | |
3790 | break; | |
3791 | ||
3792 | default: | |
3793 | return(-EINVAL); | |
3794 | } | |
3795 | ||
3796 | break; | |
3797 | ||
3798 | ||
3799 | case 0x81: | |
3800 | ||
3801 | uioc->opcode = MBOX_CMD; | |
3802 | uioc->adapno = uioc_mimd.ui.fcs.adapno; | |
3803 | ||
3804 | memcpy(uioc->uioc_rmbox, uioc_mimd.mbox, 18); | |
3805 | ||
3806 | uioc->xferlen = uioc_mimd.ui.fcs.length; | |
3807 | ||
3808 | if( uioc_mimd.outlen ) uioc->flags = UIOC_RD; | |
3809 | if( uioc_mimd.inlen ) uioc->flags |= UIOC_WR; | |
3810 | ||
3811 | break; | |
3812 | ||
3813 | case 0x80: | |
3814 | ||
3815 | uioc->opcode = MBOX_CMD; | |
3816 | uioc->adapno = uioc_mimd.ui.fcs.adapno; | |
3817 | ||
3818 | memcpy(uioc->uioc_rmbox, uioc_mimd.mbox, 18); | |
3819 | ||
3820 | /* | |
3821 | * Choose the xferlen bigger of input and output data | |
3822 | */ | |
3823 | uioc->xferlen = uioc_mimd.outlen > uioc_mimd.inlen ? | |
3824 | uioc_mimd.outlen : uioc_mimd.inlen; | |
3825 | ||
3826 | if( uioc_mimd.outlen ) uioc->flags = UIOC_RD; | |
3827 | if( uioc_mimd.inlen ) uioc->flags |= UIOC_WR; | |
3828 | ||
3829 | break; | |
3830 | ||
3831 | default: | |
3832 | return (-EINVAL); | |
3833 | ||
3834 | } | |
3835 | ||
3836 | return 0; | |
3837 | } | |
3838 | ||
3839 | /* | |
3840 | * mega_n_to_m() | |
3841 | * @arg - user address | |
3842 | * @mc - mailbox command | |
3843 | * | |
3844 | * Updates the status information to the application, depending on application | |
3845 | * conforms to older mimd ioctl interface or newer NIT ioctl interface | |
3846 | */ | |
3847 | static int | |
3848 | mega_n_to_m(void __user *arg, megacmd_t *mc) | |
3849 | { | |
3850 | nitioctl_t __user *uiocp; | |
3851 | megacmd_t __user *umc; | |
3852 | mega_passthru __user *upthru; | |
3853 | struct uioctl_t __user *uioc_mimd; | |
3854 | char signature[8] = {0}; | |
3855 | ||
3856 | /* | |
3857 | * check is the application conforms to NIT. | |
3858 | */ | |
3859 | if( copy_from_user(signature, arg, 7) ) | |
3860 | return -EFAULT; | |
3861 | ||
3862 | if( memcmp(signature, "MEGANIT", 7) == 0 ) { | |
3863 | ||
3864 | uiocp = arg; | |
3865 | ||
3866 | if( put_user(mc->status, (u8 __user *)&MBOX_P(uiocp)->status) ) | |
3867 | return (-EFAULT); | |
3868 | ||
3869 | if( mc->cmd == MEGA_MBOXCMD_PASSTHRU ) { | |
3870 | ||
3871 | umc = MBOX_P(uiocp); | |
3872 | ||
3873 | if (get_user(upthru, (mega_passthru __user * __user *)&umc->xferaddr)) | |
3874 | return -EFAULT; | |
3875 | ||
3876 | if( put_user(mc->status, (u8 __user *)&upthru->scsistatus)) | |
3877 | return (-EFAULT); | |
3878 | } | |
3879 | } | |
3880 | else { | |
3881 | uioc_mimd = arg; | |
3882 | ||
3883 | if( put_user(mc->status, (u8 __user *)&uioc_mimd->mbox[17]) ) | |
3884 | return (-EFAULT); | |
3885 | ||
3886 | if( mc->cmd == MEGA_MBOXCMD_PASSTHRU ) { | |
3887 | ||
3888 | umc = (megacmd_t __user *)uioc_mimd->mbox; | |
3889 | ||
3890 | if (get_user(upthru, (mega_passthru __user * __user *)&umc->xferaddr)) | |
3891 | return (-EFAULT); | |
3892 | ||
3893 | if( put_user(mc->status, (u8 __user *)&upthru->scsistatus) ) | |
3894 | return (-EFAULT); | |
3895 | } | |
3896 | } | |
3897 | ||
3898 | return 0; | |
3899 | } | |
3900 | ||
3901 | ||
3902 | /* | |
3903 | * MEGARAID 'FW' commands. | |
3904 | */ | |
3905 | ||
3906 | /** | |
3907 | * mega_is_bios_enabled() | |
3908 | * @adapter - pointer to our soft state | |
3909 | * | |
3910 | * issue command to find out if the BIOS is enabled for this controller | |
3911 | */ | |
3912 | static int | |
3913 | mega_is_bios_enabled(adapter_t *adapter) | |
3914 | { | |
3915 | unsigned char raw_mbox[sizeof(struct mbox_out)]; | |
3916 | mbox_t *mbox; | |
3917 | int ret; | |
3918 | ||
3919 | mbox = (mbox_t *)raw_mbox; | |
3920 | ||
3921 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); | |
3922 | ||
3923 | memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE); | |
3924 | ||
3925 | mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle; | |
3926 | ||
3927 | raw_mbox[0] = IS_BIOS_ENABLED; | |
3928 | raw_mbox[2] = GET_BIOS; | |
3929 | ||
3930 | ||
3931 | ret = issue_scb_block(adapter, raw_mbox); | |
3932 | ||
3933 | return *(char *)adapter->mega_buffer; | |
3934 | } | |
3935 | ||
3936 | ||
3937 | /** | |
3938 | * mega_enum_raid_scsi() | |
3939 | * @adapter - pointer to our soft state | |
3940 | * | |
3941 | * Find out what channels are RAID/SCSI. This information is used to | |
3942 | * differentiate the virtual channels and physical channels and to support | |
3943 | * ROMB feature and non-disk devices. | |
3944 | */ | |
3945 | static void | |
3946 | mega_enum_raid_scsi(adapter_t *adapter) | |
3947 | { | |
3948 | unsigned char raw_mbox[sizeof(struct mbox_out)]; | |
3949 | mbox_t *mbox; | |
3950 | int i; | |
3951 | ||
3952 | mbox = (mbox_t *)raw_mbox; | |
3953 | ||
3954 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); | |
3955 | ||
3956 | /* | |
3957 | * issue command to find out what channels are raid/scsi | |
3958 | */ | |
3959 | raw_mbox[0] = CHNL_CLASS; | |
3960 | raw_mbox[2] = GET_CHNL_CLASS; | |
3961 | ||
3962 | memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE); | |
3963 | ||
3964 | mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle; | |
3965 | ||
3966 | /* | |
3967 | * Non-ROMB firmware fail this command, so all channels | |
3968 | * must be shown RAID | |
3969 | */ | |
3970 | adapter->mega_ch_class = 0xFF; | |
3971 | ||
3972 | if(!issue_scb_block(adapter, raw_mbox)) { | |
3973 | adapter->mega_ch_class = *((char *)adapter->mega_buffer); | |
3974 | ||
3975 | } | |
3976 | ||
3977 | for( i = 0; i < adapter->product_info.nchannels; i++ ) { | |
3978 | if( (adapter->mega_ch_class >> i) & 0x01 ) { | |
3979 | printk(KERN_INFO "megaraid: channel[%d] is raid.\n", | |
3980 | i); | |
3981 | } | |
3982 | else { | |
3983 | printk(KERN_INFO "megaraid: channel[%d] is scsi.\n", | |
3984 | i); | |
3985 | } | |
3986 | } | |
3987 | ||
3988 | return; | |
3989 | } | |
3990 | ||
3991 | ||
3992 | /** | |
3993 | * mega_get_boot_drv() | |
3994 | * @adapter - pointer to our soft state | |
3995 | * | |
3996 | * Find out which device is the boot device. Note, any logical drive or any | |
3997 | * phyical device (e.g., a CDROM) can be designated as a boot device. | |
3998 | */ | |
3999 | static void | |
4000 | mega_get_boot_drv(adapter_t *adapter) | |
4001 | { | |
4002 | struct private_bios_data *prv_bios_data; | |
4003 | unsigned char raw_mbox[sizeof(struct mbox_out)]; | |
4004 | mbox_t *mbox; | |
4005 | u16 cksum = 0; | |
4006 | u8 *cksum_p; | |
4007 | u8 boot_pdrv; | |
4008 | int i; | |
4009 | ||
4010 | mbox = (mbox_t *)raw_mbox; | |
4011 | ||
4012 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); | |
4013 | ||
4014 | raw_mbox[0] = BIOS_PVT_DATA; | |
4015 | raw_mbox[2] = GET_BIOS_PVT_DATA; | |
4016 | ||
4017 | memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE); | |
4018 | ||
4019 | mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle; | |
4020 | ||
4021 | adapter->boot_ldrv_enabled = 0; | |
4022 | adapter->boot_ldrv = 0; | |
4023 | ||
4024 | adapter->boot_pdrv_enabled = 0; | |
4025 | adapter->boot_pdrv_ch = 0; | |
4026 | adapter->boot_pdrv_tgt = 0; | |
4027 | ||
4028 | if(issue_scb_block(adapter, raw_mbox) == 0) { | |
4029 | prv_bios_data = | |
4030 | (struct private_bios_data *)adapter->mega_buffer; | |
4031 | ||
4032 | cksum = 0; | |
4033 | cksum_p = (char *)prv_bios_data; | |
4034 | for (i = 0; i < 14; i++ ) { | |
4035 | cksum += (u16)(*cksum_p++); | |
4036 | } | |
4037 | ||
4038 | if (prv_bios_data->cksum == (u16)(0-cksum) ) { | |
4039 | ||
4040 | /* | |
4041 | * If MSB is set, a physical drive is set as boot | |
4042 | * device | |
4043 | */ | |
4044 | if( prv_bios_data->boot_drv & 0x80 ) { | |
4045 | adapter->boot_pdrv_enabled = 1; | |
4046 | boot_pdrv = prv_bios_data->boot_drv & 0x7F; | |
4047 | adapter->boot_pdrv_ch = boot_pdrv / 16; | |
4048 | adapter->boot_pdrv_tgt = boot_pdrv % 16; | |
4049 | } | |
4050 | else { | |
4051 | adapter->boot_ldrv_enabled = 1; | |
4052 | adapter->boot_ldrv = prv_bios_data->boot_drv; | |
4053 | } | |
4054 | } | |
4055 | } | |
4056 | ||
4057 | } | |
4058 | ||
4059 | /** | |
4060 | * mega_support_random_del() | |
4061 | * @adapter - pointer to our soft state | |
4062 | * | |
4063 | * Find out if this controller supports random deletion and addition of | |
4064 | * logical drives | |
4065 | */ | |
4066 | static int | |
4067 | mega_support_random_del(adapter_t *adapter) | |
4068 | { | |
4069 | unsigned char raw_mbox[sizeof(struct mbox_out)]; | |
4070 | mbox_t *mbox; | |
4071 | int rval; | |
4072 | ||
4073 | mbox = (mbox_t *)raw_mbox; | |
4074 | ||
4075 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); | |
4076 | ||
4077 | /* | |
4078 | * issue command | |
4079 | */ | |
4080 | raw_mbox[0] = FC_DEL_LOGDRV; | |
4081 | raw_mbox[2] = OP_SUP_DEL_LOGDRV; | |
4082 | ||
4083 | rval = issue_scb_block(adapter, raw_mbox); | |
4084 | ||
4085 | return !rval; | |
4086 | } | |
4087 | ||
4088 | ||
4089 | /** | |
4090 | * mega_support_ext_cdb() | |
4091 | * @adapter - pointer to our soft state | |
4092 | * | |
4093 | * Find out if this firmware support cdblen > 10 | |
4094 | */ | |
4095 | static int | |
4096 | mega_support_ext_cdb(adapter_t *adapter) | |
4097 | { | |
4098 | unsigned char raw_mbox[sizeof(struct mbox_out)]; | |
4099 | mbox_t *mbox; | |
4100 | int rval; | |
4101 | ||
4102 | mbox = (mbox_t *)raw_mbox; | |
4103 | ||
4104 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); | |
4105 | /* | |
4106 | * issue command to find out if controller supports extended CDBs. | |
4107 | */ | |
4108 | raw_mbox[0] = 0xA4; | |
4109 | raw_mbox[2] = 0x16; | |
4110 | ||
4111 | rval = issue_scb_block(adapter, raw_mbox); | |
4112 | ||
4113 | return !rval; | |
4114 | } | |
4115 | ||
4116 | ||
4117 | /** | |
4118 | * mega_del_logdrv() | |
4119 | * @adapter - pointer to our soft state | |
4120 | * @logdrv - logical drive to be deleted | |
4121 | * | |
4122 | * Delete the specified logical drive. It is the responsibility of the user | |
4123 | * app to let the OS know about this operation. | |
4124 | */ | |
4125 | static int | |
4126 | mega_del_logdrv(adapter_t *adapter, int logdrv) | |
4127 | { | |
4128 | unsigned long flags; | |
4129 | scb_t *scb; | |
4130 | int rval; | |
4131 | ||
4132 | /* | |
4133 | * Stop sending commands to the controller, queue them internally. | |
4134 | * When deletion is complete, ISR will flush the queue. | |
4135 | */ | |
4136 | atomic_set(&adapter->quiescent, 1); | |
4137 | ||
4138 | /* | |
4139 | * Wait till all the issued commands are complete and there are no | |
4140 | * commands in the pending queue | |
4141 | */ | |
4142 | while (atomic_read(&adapter->pend_cmds) > 0 || | |
4143 | !list_empty(&adapter->pending_list)) | |
4144 | msleep(1000); /* sleep for 1s */ | |
4145 | ||
4146 | rval = mega_do_del_logdrv(adapter, logdrv); | |
4147 | ||
4148 | spin_lock_irqsave(&adapter->lock, flags); | |
4149 | ||
4150 | /* | |
4151 | * If delete operation was successful, add 0x80 to the logical drive | |
4152 | * ids for commands in the pending queue. | |
4153 | */ | |
4154 | if (adapter->read_ldidmap) { | |
4155 | struct list_head *pos; | |
4156 | list_for_each(pos, &adapter->pending_list) { | |
4157 | scb = list_entry(pos, scb_t, list); | |
4158 | if (scb->pthru->logdrv < 0x80 ) | |
4159 | scb->pthru->logdrv += 0x80; | |
4160 | } | |
4161 | } | |
4162 | ||
4163 | atomic_set(&adapter->quiescent, 0); | |
4164 | ||
4165 | mega_runpendq(adapter); | |
4166 | ||
4167 | spin_unlock_irqrestore(&adapter->lock, flags); | |
4168 | ||
4169 | return rval; | |
4170 | } | |
4171 | ||
4172 | ||
4173 | static int | |
4174 | mega_do_del_logdrv(adapter_t *adapter, int logdrv) | |
4175 | { | |
4176 | megacmd_t mc; | |
4177 | int rval; | |
4178 | ||
4179 | memset( &mc, 0, sizeof(megacmd_t)); | |
4180 | ||
4181 | mc.cmd = FC_DEL_LOGDRV; | |
4182 | mc.opcode = OP_DEL_LOGDRV; | |
4183 | mc.subopcode = logdrv; | |
4184 | ||
cb0258a2 | 4185 | rval = mega_internal_command(adapter, &mc, NULL); |
1da177e4 LT |
4186 | |
4187 | /* log this event */ | |
4188 | if(rval) { | |
4189 | printk(KERN_WARNING "megaraid: Delete LD-%d failed.", logdrv); | |
4190 | return rval; | |
4191 | } | |
4192 | ||
4193 | /* | |
4194 | * After deleting first logical drive, the logical drives must be | |
4195 | * addressed by adding 0x80 to the logical drive id. | |
4196 | */ | |
4197 | adapter->read_ldidmap = 1; | |
4198 | ||
4199 | return rval; | |
4200 | } | |
4201 | ||
4202 | ||
4203 | /** | |
4204 | * mega_get_max_sgl() | |
4205 | * @adapter - pointer to our soft state | |
4206 | * | |
4207 | * Find out the maximum number of scatter-gather elements supported by this | |
4208 | * version of the firmware | |
4209 | */ | |
4210 | static void | |
4211 | mega_get_max_sgl(adapter_t *adapter) | |
4212 | { | |
4213 | unsigned char raw_mbox[sizeof(struct mbox_out)]; | |
4214 | mbox_t *mbox; | |
4215 | ||
4216 | mbox = (mbox_t *)raw_mbox; | |
4217 | ||
4218 | memset(mbox, 0, sizeof(raw_mbox)); | |
4219 | ||
4220 | memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE); | |
4221 | ||
4222 | mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle; | |
4223 | ||
4224 | raw_mbox[0] = MAIN_MISC_OPCODE; | |
4225 | raw_mbox[2] = GET_MAX_SG_SUPPORT; | |
4226 | ||
4227 | ||
4228 | if( issue_scb_block(adapter, raw_mbox) ) { | |
4229 | /* | |
4230 | * f/w does not support this command. Choose the default value | |
4231 | */ | |
4232 | adapter->sglen = MIN_SGLIST; | |
4233 | } | |
4234 | else { | |
4235 | adapter->sglen = *((char *)adapter->mega_buffer); | |
4236 | ||
4237 | /* | |
4238 | * Make sure this is not more than the resources we are | |
4239 | * planning to allocate | |
4240 | */ | |
4241 | if ( adapter->sglen > MAX_SGLIST ) | |
4242 | adapter->sglen = MAX_SGLIST; | |
4243 | } | |
4244 | ||
4245 | return; | |
4246 | } | |
4247 | ||
4248 | ||
4249 | /** | |
4250 | * mega_support_cluster() | |
4251 | * @adapter - pointer to our soft state | |
4252 | * | |
4253 | * Find out if this firmware support cluster calls. | |
4254 | */ | |
4255 | static int | |
4256 | mega_support_cluster(adapter_t *adapter) | |
4257 | { | |
4258 | unsigned char raw_mbox[sizeof(struct mbox_out)]; | |
4259 | mbox_t *mbox; | |
4260 | ||
4261 | mbox = (mbox_t *)raw_mbox; | |
4262 | ||
4263 | memset(mbox, 0, sizeof(raw_mbox)); | |
4264 | ||
4265 | memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE); | |
4266 | ||
4267 | mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle; | |
4268 | ||
4269 | /* | |
4270 | * Try to get the initiator id. This command will succeed iff the | |
4271 | * clustering is available on this HBA. | |
4272 | */ | |
4273 | raw_mbox[0] = MEGA_GET_TARGET_ID; | |
4274 | ||
4275 | if( issue_scb_block(adapter, raw_mbox) == 0 ) { | |
4276 | ||
4277 | /* | |
4278 | * Cluster support available. Get the initiator target id. | |
4279 | * Tell our id to mid-layer too. | |
4280 | */ | |
4281 | adapter->this_id = *(u32 *)adapter->mega_buffer; | |
4282 | adapter->host->this_id = adapter->this_id; | |
4283 | ||
4284 | return 1; | |
4285 | } | |
4286 | ||
4287 | return 0; | |
4288 | } | |
4289 | ||
84a3c97b | 4290 | #ifdef CONFIG_PROC_FS |
1da177e4 LT |
4291 | /** |
4292 | * mega_adapinq() | |
4293 | * @adapter - pointer to our soft state | |
4294 | * @dma_handle - DMA address of the buffer | |
4295 | * | |
4296 | * Issue internal comamnds while interrupts are available. | |
4297 | * We only issue direct mailbox commands from within the driver. ioctl() | |
4298 | * interface using these routines can issue passthru commands. | |
4299 | */ | |
4300 | static int | |
4301 | mega_adapinq(adapter_t *adapter, dma_addr_t dma_handle) | |
4302 | { | |
4303 | megacmd_t mc; | |
4304 | ||
4305 | memset(&mc, 0, sizeof(megacmd_t)); | |
4306 | ||
4307 | if( adapter->flag & BOARD_40LD ) { | |
4308 | mc.cmd = FC_NEW_CONFIG; | |
4309 | mc.opcode = NC_SUBOP_ENQUIRY3; | |
4310 | mc.subopcode = ENQ3_GET_SOLICITED_FULL; | |
4311 | } | |
4312 | else { | |
4313 | mc.cmd = MEGA_MBOXCMD_ADPEXTINQ; | |
4314 | } | |
4315 | ||
4316 | mc.xferaddr = (u32)dma_handle; | |
4317 | ||
cb0258a2 | 4318 | if ( mega_internal_command(adapter, &mc, NULL) != 0 ) { |
1da177e4 LT |
4319 | return -1; |
4320 | } | |
4321 | ||
4322 | return 0; | |
4323 | } | |
4324 | ||
4325 | ||
4326 | /** mega_internal_dev_inquiry() | |
4327 | * @adapter - pointer to our soft state | |
4328 | * @ch - channel for this device | |
4329 | * @tgt - ID of this device | |
4330 | * @buf_dma_handle - DMA address of the buffer | |
4331 | * | |
4332 | * Issue the scsi inquiry for the specified device. | |
4333 | */ | |
4334 | static int | |
4335 | mega_internal_dev_inquiry(adapter_t *adapter, u8 ch, u8 tgt, | |
4336 | dma_addr_t buf_dma_handle) | |
4337 | { | |
4338 | mega_passthru *pthru; | |
4339 | dma_addr_t pthru_dma_handle; | |
4340 | megacmd_t mc; | |
4341 | int rval; | |
4342 | struct pci_dev *pdev; | |
4343 | ||
4344 | ||
4345 | /* | |
4346 | * For all internal commands, the buffer must be allocated in <4GB | |
4347 | * address range | |
4348 | */ | |
4349 | if( make_local_pdev(adapter, &pdev) != 0 ) return -1; | |
4350 | ||
4351 | pthru = pci_alloc_consistent(pdev, sizeof(mega_passthru), | |
4352 | &pthru_dma_handle); | |
4353 | ||
4354 | if( pthru == NULL ) { | |
4355 | free_local_pdev(pdev); | |
4356 | return -1; | |
4357 | } | |
4358 | ||
4359 | pthru->timeout = 2; | |
4360 | pthru->ars = 1; | |
4361 | pthru->reqsenselen = 14; | |
4362 | pthru->islogical = 0; | |
4363 | ||
4364 | pthru->channel = (adapter->flag & BOARD_40LD) ? 0 : ch; | |
4365 | ||
4366 | pthru->target = (adapter->flag & BOARD_40LD) ? (ch << 4)|tgt : tgt; | |
4367 | ||
4368 | pthru->cdblen = 6; | |
4369 | ||
4370 | pthru->cdb[0] = INQUIRY; | |
4371 | pthru->cdb[1] = 0; | |
4372 | pthru->cdb[2] = 0; | |
4373 | pthru->cdb[3] = 0; | |
4374 | pthru->cdb[4] = 255; | |
4375 | pthru->cdb[5] = 0; | |
4376 | ||
4377 | ||
4378 | pthru->dataxferaddr = (u32)buf_dma_handle; | |
4379 | pthru->dataxferlen = 256; | |
4380 | ||
4381 | memset(&mc, 0, sizeof(megacmd_t)); | |
4382 | ||
4383 | mc.cmd = MEGA_MBOXCMD_PASSTHRU; | |
4384 | mc.xferaddr = (u32)pthru_dma_handle; | |
4385 | ||
cb0258a2 | 4386 | rval = mega_internal_command(adapter, &mc, pthru); |
1da177e4 LT |
4387 | |
4388 | pci_free_consistent(pdev, sizeof(mega_passthru), pthru, | |
4389 | pthru_dma_handle); | |
4390 | ||
4391 | free_local_pdev(pdev); | |
4392 | ||
4393 | return rval; | |
4394 | } | |
84a3c97b | 4395 | #endif |
1da177e4 LT |
4396 | |
4397 | /** | |
4398 | * mega_internal_command() | |
4399 | * @adapter - pointer to our soft state | |
1da177e4 LT |
4400 | * @mc - the mailbox command |
4401 | * @pthru - Passthru structure for DCDB commands | |
4402 | * | |
4403 | * Issue the internal commands in interrupt mode. | |
4404 | * The last argument is the address of the passthru structure if the command | |
4405 | * to be fired is a passthru command | |
4406 | * | |
4407 | * lockscope specifies whether the caller has already acquired the lock. Of | |
4408 | * course, the caller must know which lock we are talking about. | |
4409 | * | |
4410 | * Note: parameter 'pthru' is null for non-passthru commands. | |
4411 | */ | |
4412 | static int | |
cb0258a2 | 4413 | mega_internal_command(adapter_t *adapter, megacmd_t *mc, mega_passthru *pthru) |
1da177e4 LT |
4414 | { |
4415 | Scsi_Cmnd *scmd; | |
4416 | struct scsi_device *sdev; | |
1da177e4 LT |
4417 | scb_t *scb; |
4418 | int rval; | |
4419 | ||
6b0eea21 FT |
4420 | scmd = scsi_allocate_command(GFP_KERNEL); |
4421 | if (!scmd) | |
4422 | return -ENOMEM; | |
4423 | ||
1da177e4 LT |
4424 | /* |
4425 | * The internal commands share one command id and hence are | |
4426 | * serialized. This is so because we want to reserve maximum number of | |
4427 | * available command ids for the I/O commands. | |
4428 | */ | |
0b950672 | 4429 | mutex_lock(&adapter->int_mtx); |
1da177e4 LT |
4430 | |
4431 | scb = &adapter->int_scb; | |
4432 | memset(scb, 0, sizeof(scb_t)); | |
4433 | ||
bbfbbbc1 | 4434 | sdev = kzalloc(sizeof(struct scsi_device), GFP_KERNEL); |
1da177e4 LT |
4435 | scmd->device = sdev; |
4436 | ||
6b0eea21 FT |
4437 | memset(adapter->int_cdb, 0, sizeof(adapter->int_cdb)); |
4438 | scmd->cmnd = adapter->int_cdb; | |
1da177e4 | 4439 | scmd->device->host = adapter->host; |
3f6270ef | 4440 | scmd->host_scribble = (void *)scb; |
1da177e4 LT |
4441 | scmd->cmnd[0] = MEGA_INTERNAL_CMD; |
4442 | ||
4443 | scb->state |= SCB_ACTIVE; | |
4444 | scb->cmd = scmd; | |
4445 | ||
4446 | memcpy(scb->raw_mbox, mc, sizeof(megacmd_t)); | |
4447 | ||
4448 | /* | |
4449 | * Is it a passthru command | |
4450 | */ | |
4451 | if( mc->cmd == MEGA_MBOXCMD_PASSTHRU ) { | |
4452 | ||
4453 | scb->pthru = pthru; | |
4454 | } | |
4455 | ||
4456 | scb->idx = CMDID_INT_CMDS; | |
4457 | ||
1da177e4 LT |
4458 | megaraid_queue(scmd, mega_internal_done); |
4459 | ||
8d115f84 | 4460 | wait_for_completion(&adapter->int_waitq); |
1da177e4 LT |
4461 | |
4462 | rval = scmd->result; | |
4463 | mc->status = scmd->result; | |
4464 | kfree(sdev); | |
4465 | ||
4466 | /* | |
4467 | * Print a debug message for all failed commands. Applications can use | |
4468 | * this information. | |
4469 | */ | |
4470 | if( scmd->result && trace_level ) { | |
4471 | printk("megaraid: cmd [%x, %x, %x] status:[%x]\n", | |
4472 | mc->cmd, mc->opcode, mc->subopcode, scmd->result); | |
4473 | } | |
4474 | ||
0b950672 | 4475 | mutex_unlock(&adapter->int_mtx); |
1da177e4 | 4476 | |
6b0eea21 FT |
4477 | scsi_free_command(GFP_KERNEL, scmd); |
4478 | ||
1da177e4 LT |
4479 | return rval; |
4480 | } | |
4481 | ||
4482 | ||
4483 | /** | |
4484 | * mega_internal_done() | |
4485 | * @scmd - internal scsi command | |
4486 | * | |
4487 | * Callback routine for internal commands. | |
4488 | */ | |
4489 | static void | |
4490 | mega_internal_done(Scsi_Cmnd *scmd) | |
4491 | { | |
4492 | adapter_t *adapter; | |
4493 | ||
4494 | adapter = (adapter_t *)scmd->device->host->hostdata; | |
4495 | ||
8d115f84 | 4496 | complete(&adapter->int_waitq); |
1da177e4 LT |
4497 | |
4498 | } | |
4499 | ||
4500 | ||
4501 | static struct scsi_host_template megaraid_template = { | |
4502 | .module = THIS_MODULE, | |
4503 | .name = "MegaRAID", | |
3492b328 | 4504 | .proc_name = "megaraid_legacy", |
1da177e4 LT |
4505 | .info = megaraid_info, |
4506 | .queuecommand = megaraid_queue, | |
4507 | .bios_param = megaraid_biosparam, | |
4508 | .max_sectors = MAX_SECTORS_PER_IO, | |
4509 | .can_queue = MAX_COMMANDS, | |
4510 | .this_id = DEFAULT_INITIATOR_ID, | |
4511 | .sg_tablesize = MAX_SGLIST, | |
4512 | .cmd_per_lun = DEF_CMD_PER_LUN, | |
4513 | .use_clustering = ENABLE_CLUSTERING, | |
4514 | .eh_abort_handler = megaraid_abort, | |
4515 | .eh_device_reset_handler = megaraid_reset, | |
4516 | .eh_bus_reset_handler = megaraid_reset, | |
4517 | .eh_host_reset_handler = megaraid_reset, | |
4518 | }; | |
4519 | ||
4520 | static int __devinit | |
4521 | megaraid_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) | |
4522 | { | |
4523 | struct Scsi_Host *host; | |
4524 | adapter_t *adapter; | |
4525 | unsigned long mega_baseport, tbase, flag = 0; | |
4526 | u16 subsysid, subsysvid; | |
4527 | u8 pci_bus, pci_dev_func; | |
4528 | int irq, i, j; | |
4529 | int error = -ENODEV; | |
4530 | ||
4531 | if (pci_enable_device(pdev)) | |
4532 | goto out; | |
4533 | pci_set_master(pdev); | |
4534 | ||
4535 | pci_bus = pdev->bus->number; | |
4536 | pci_dev_func = pdev->devfn; | |
4537 | ||
4538 | /* | |
4539 | * The megaraid3 stuff reports the ID of the Intel part which is not | |
4540 | * remotely specific to the megaraid | |
4541 | */ | |
4542 | if (pdev->vendor == PCI_VENDOR_ID_INTEL) { | |
4543 | u16 magic; | |
4544 | /* | |
4545 | * Don't fall over the Compaq management cards using the same | |
4546 | * PCI identifier | |
4547 | */ | |
4548 | if (pdev->subsystem_vendor == PCI_VENDOR_ID_COMPAQ && | |
4549 | pdev->subsystem_device == 0xC000) | |
4550 | return -ENODEV; | |
4551 | /* Now check the magic signature byte */ | |
4552 | pci_read_config_word(pdev, PCI_CONF_AMISIG, &magic); | |
4553 | if (magic != HBA_SIGNATURE_471 && magic != HBA_SIGNATURE) | |
4554 | return -ENODEV; | |
4555 | /* Ok it is probably a megaraid */ | |
4556 | } | |
4557 | ||
4558 | /* | |
4559 | * For these vendor and device ids, signature offsets are not | |
4560 | * valid and 64 bit is implicit | |
4561 | */ | |
4562 | if (id->driver_data & BOARD_64BIT) | |
4563 | flag |= BOARD_64BIT; | |
4564 | else { | |
4565 | u32 magic64; | |
4566 | ||
4567 | pci_read_config_dword(pdev, PCI_CONF_AMISIG64, &magic64); | |
4568 | if (magic64 == HBA_SIGNATURE_64BIT) | |
4569 | flag |= BOARD_64BIT; | |
4570 | } | |
4571 | ||
4572 | subsysvid = pdev->subsystem_vendor; | |
4573 | subsysid = pdev->subsystem_device; | |
4574 | ||
4575 | printk(KERN_NOTICE "megaraid: found 0x%4.04x:0x%4.04x:bus %d:", | |
4576 | id->vendor, id->device, pci_bus); | |
4577 | ||
4578 | printk("slot %d:func %d\n", | |
4579 | PCI_SLOT(pci_dev_func), PCI_FUNC(pci_dev_func)); | |
4580 | ||
4581 | /* Read the base port and IRQ from PCI */ | |
4582 | mega_baseport = pci_resource_start(pdev, 0); | |
4583 | irq = pdev->irq; | |
4584 | ||
4585 | tbase = mega_baseport; | |
4586 | if (pci_resource_flags(pdev, 0) & IORESOURCE_MEM) { | |
4587 | flag |= BOARD_MEMMAP; | |
4588 | ||
4589 | if (!request_mem_region(mega_baseport, 128, "megaraid")) { | |
4590 | printk(KERN_WARNING "megaraid: mem region busy!\n"); | |
4591 | goto out_disable_device; | |
4592 | } | |
4593 | ||
4594 | mega_baseport = (unsigned long)ioremap(mega_baseport, 128); | |
4595 | if (!mega_baseport) { | |
4596 | printk(KERN_WARNING | |
4597 | "megaraid: could not map hba memory\n"); | |
4598 | goto out_release_region; | |
4599 | } | |
4600 | } else { | |
4601 | flag |= BOARD_IOMAP; | |
4602 | mega_baseport += 0x10; | |
4603 | ||
4604 | if (!request_region(mega_baseport, 16, "megaraid")) | |
4605 | goto out_disable_device; | |
4606 | } | |
4607 | ||
4608 | /* Initialize SCSI Host structure */ | |
4609 | host = scsi_host_alloc(&megaraid_template, sizeof(adapter_t)); | |
4610 | if (!host) | |
4611 | goto out_iounmap; | |
4612 | ||
4613 | adapter = (adapter_t *)host->hostdata; | |
4614 | memset(adapter, 0, sizeof(adapter_t)); | |
4615 | ||
4616 | printk(KERN_NOTICE | |
4617 | "scsi%d:Found MegaRAID controller at 0x%lx, IRQ:%d\n", | |
4618 | host->host_no, mega_baseport, irq); | |
4619 | ||
4620 | adapter->base = mega_baseport; | |
00769ec4 JG |
4621 | if (flag & BOARD_MEMMAP) |
4622 | adapter->mmio_base = (void __iomem *) mega_baseport; | |
1da177e4 LT |
4623 | |
4624 | INIT_LIST_HEAD(&adapter->free_list); | |
4625 | INIT_LIST_HEAD(&adapter->pending_list); | |
4626 | INIT_LIST_HEAD(&adapter->completed_list); | |
4627 | ||
4628 | adapter->flag = flag; | |
4629 | spin_lock_init(&adapter->lock); | |
1da177e4 LT |
4630 | |
4631 | host->cmd_per_lun = max_cmd_per_lun; | |
4632 | host->max_sectors = max_sectors_per_io; | |
4633 | ||
4634 | adapter->dev = pdev; | |
4635 | adapter->host = host; | |
4636 | ||
4637 | adapter->host->irq = irq; | |
4638 | ||
4639 | if (flag & BOARD_MEMMAP) | |
4640 | adapter->host->base = tbase; | |
4641 | else { | |
4642 | adapter->host->io_port = tbase; | |
4643 | adapter->host->n_io_port = 16; | |
4644 | } | |
4645 | ||
4646 | adapter->host->unique_id = (pci_bus << 8) | pci_dev_func; | |
4647 | ||
4648 | /* | |
4649 | * Allocate buffer to issue internal commands. | |
4650 | */ | |
4651 | adapter->mega_buffer = pci_alloc_consistent(adapter->dev, | |
4652 | MEGA_BUFFER_SIZE, &adapter->buf_dma_handle); | |
4653 | if (!adapter->mega_buffer) { | |
4654 | printk(KERN_WARNING "megaraid: out of RAM.\n"); | |
4655 | goto out_host_put; | |
4656 | } | |
4657 | ||
4658 | adapter->scb_list = kmalloc(sizeof(scb_t) * MAX_COMMANDS, GFP_KERNEL); | |
4659 | if (!adapter->scb_list) { | |
4660 | printk(KERN_WARNING "megaraid: out of RAM.\n"); | |
4661 | goto out_free_cmd_buffer; | |
4662 | } | |
4663 | ||
4664 | if (request_irq(irq, (adapter->flag & BOARD_MEMMAP) ? | |
4665 | megaraid_isr_memmapped : megaraid_isr_iomapped, | |
1d6f359a | 4666 | IRQF_SHARED, "megaraid", adapter)) { |
1da177e4 LT |
4667 | printk(KERN_WARNING |
4668 | "megaraid: Couldn't register IRQ %d!\n", irq); | |
4669 | goto out_free_scb_list; | |
4670 | } | |
4671 | ||
4672 | if (mega_setup_mailbox(adapter)) | |
4673 | goto out_free_irq; | |
4674 | ||
4675 | if (mega_query_adapter(adapter)) | |
4676 | goto out_free_mbox; | |
4677 | ||
4678 | /* | |
4679 | * Have checks for some buggy f/w | |
4680 | */ | |
4681 | if ((subsysid == 0x1111) && (subsysvid == 0x1111)) { | |
4682 | /* | |
4683 | * Which firmware | |
4684 | */ | |
4685 | if (!strcmp(adapter->fw_version, "3.00") || | |
4686 | !strcmp(adapter->fw_version, "3.01")) { | |
4687 | ||
4688 | printk( KERN_WARNING | |
4689 | "megaraid: Your card is a Dell PERC " | |
4690 | "2/SC RAID controller with " | |
4691 | "firmware\nmegaraid: 3.00 or 3.01. " | |
4692 | "This driver is known to have " | |
4693 | "corruption issues\nmegaraid: with " | |
4694 | "those firmware versions on this " | |
4695 | "specific card. In order\nmegaraid: " | |
4696 | "to protect your data, please upgrade " | |
4697 | "your firmware to version\nmegaraid: " | |
4698 | "3.10 or later, available from the " | |
4699 | "Dell Technical Support web\n" | |
4700 | "megaraid: site at\nhttp://support." | |
4701 | "dell.com/us/en/filelib/download/" | |
4702 | "index.asp?fileid=2940\n" | |
4703 | ); | |
4704 | } | |
4705 | } | |
4706 | ||
4707 | /* | |
4708 | * If we have a HP 1M(0x60E7)/2M(0x60E8) controller with | |
4709 | * firmware H.01.07, H.01.08, and H.01.09 disable 64 bit | |
4710 | * support, since this firmware cannot handle 64 bit | |
4711 | * addressing | |
4712 | */ | |
4713 | if ((subsysvid == HP_SUBSYS_VID) && | |
4714 | ((subsysid == 0x60E7) || (subsysid == 0x60E8))) { | |
4715 | /* | |
4716 | * which firmware | |
4717 | */ | |
4718 | if (!strcmp(adapter->fw_version, "H01.07") || | |
4719 | !strcmp(adapter->fw_version, "H01.08") || | |
4720 | !strcmp(adapter->fw_version, "H01.09") ) { | |
4721 | printk(KERN_WARNING | |
4722 | "megaraid: Firmware H.01.07, " | |
4723 | "H.01.08, and H.01.09 on 1M/2M " | |
4724 | "controllers\n" | |
4725 | "megaraid: do not support 64 bit " | |
4726 | "addressing.\nmegaraid: DISABLING " | |
4727 | "64 bit support.\n"); | |
4728 | adapter->flag &= ~BOARD_64BIT; | |
4729 | } | |
4730 | } | |
4731 | ||
4732 | if (mega_is_bios_enabled(adapter)) | |
4733 | mega_hbas[hba_count].is_bios_enabled = 1; | |
4734 | mega_hbas[hba_count].hostdata_addr = adapter; | |
4735 | ||
4736 | /* | |
4737 | * Find out which channel is raid and which is scsi. This is | |
4738 | * for ROMB support. | |
4739 | */ | |
4740 | mega_enum_raid_scsi(adapter); | |
4741 | ||
4742 | /* | |
4743 | * Find out if a logical drive is set as the boot drive. If | |
4744 | * there is one, will make that as the first logical drive. | |
4745 | * ROMB: Do we have to boot from a physical drive. Then all | |
4746 | * the physical drives would appear before the logical disks. | |
4747 | * Else, all the physical drives would be exported to the mid | |
4748 | * layer after logical drives. | |
4749 | */ | |
4750 | mega_get_boot_drv(adapter); | |
4751 | ||
4752 | if (adapter->boot_pdrv_enabled) { | |
4753 | j = adapter->product_info.nchannels; | |
4754 | for( i = 0; i < j; i++ ) | |
4755 | adapter->logdrv_chan[i] = 0; | |
4756 | for( i = j; i < NVIRT_CHAN + j; i++ ) | |
4757 | adapter->logdrv_chan[i] = 1; | |
4758 | } else { | |
4759 | for (i = 0; i < NVIRT_CHAN; i++) | |
4760 | adapter->logdrv_chan[i] = 1; | |
4761 | for (i = NVIRT_CHAN; i < MAX_CHANNELS+NVIRT_CHAN; i++) | |
4762 | adapter->logdrv_chan[i] = 0; | |
4763 | adapter->mega_ch_class <<= NVIRT_CHAN; | |
4764 | } | |
4765 | ||
4766 | /* | |
4767 | * Do we support random deletion and addition of logical | |
4768 | * drives | |
4769 | */ | |
4770 | adapter->read_ldidmap = 0; /* set it after first logdrv | |
4771 | delete cmd */ | |
4772 | adapter->support_random_del = mega_support_random_del(adapter); | |
4773 | ||
4774 | /* Initialize SCBs */ | |
4775 | if (mega_init_scb(adapter)) | |
4776 | goto out_free_mbox; | |
4777 | ||
4778 | /* | |
4779 | * Reset the pending commands counter | |
4780 | */ | |
4781 | atomic_set(&adapter->pend_cmds, 0); | |
4782 | ||
4783 | /* | |
4784 | * Reset the adapter quiescent flag | |
4785 | */ | |
4786 | atomic_set(&adapter->quiescent, 0); | |
4787 | ||
4788 | hba_soft_state[hba_count] = adapter; | |
4789 | ||
4790 | /* | |
4791 | * Fill in the structure which needs to be passed back to the | |
4792 | * application when it does an ioctl() for controller related | |
4793 | * information. | |
4794 | */ | |
4795 | i = hba_count; | |
4796 | ||
4797 | mcontroller[i].base = mega_baseport; | |
4798 | mcontroller[i].irq = irq; | |
4799 | mcontroller[i].numldrv = adapter->numldrv; | |
4800 | mcontroller[i].pcibus = pci_bus; | |
4801 | mcontroller[i].pcidev = id->device; | |
4802 | mcontroller[i].pcifun = PCI_FUNC (pci_dev_func); | |
4803 | mcontroller[i].pciid = -1; | |
4804 | mcontroller[i].pcivendor = id->vendor; | |
4805 | mcontroller[i].pcislot = PCI_SLOT(pci_dev_func); | |
4806 | mcontroller[i].uid = (pci_bus << 8) | pci_dev_func; | |
4807 | ||
4808 | ||
4809 | /* Set the Mode of addressing to 64 bit if we can */ | |
4810 | if ((adapter->flag & BOARD_64BIT) && (sizeof(dma_addr_t) == 8)) { | |
6a35528a | 4811 | pci_set_dma_mask(pdev, DMA_BIT_MASK(64)); |
1da177e4 LT |
4812 | adapter->has_64bit_addr = 1; |
4813 | } else { | |
284901a9 | 4814 | pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); |
1da177e4 LT |
4815 | adapter->has_64bit_addr = 0; |
4816 | } | |
4817 | ||
0b950672 | 4818 | mutex_init(&adapter->int_mtx); |
8d115f84 | 4819 | init_completion(&adapter->int_waitq); |
1da177e4 LT |
4820 | |
4821 | adapter->this_id = DEFAULT_INITIATOR_ID; | |
4822 | adapter->host->this_id = DEFAULT_INITIATOR_ID; | |
4823 | ||
4824 | #if MEGA_HAVE_CLUSTERING | |
4825 | /* | |
4826 | * Is cluster support enabled on this controller | |
4827 | * Note: In a cluster the HBAs ( the initiators ) will have | |
4828 | * different target IDs and we cannot assume it to be 7. Call | |
4829 | * to mega_support_cluster() will get the target ids also if | |
4830 | * the cluster support is available | |
4831 | */ | |
4832 | adapter->has_cluster = mega_support_cluster(adapter); | |
4833 | if (adapter->has_cluster) { | |
4834 | printk(KERN_NOTICE | |
4835 | "megaraid: Cluster driver, initiator id:%d\n", | |
4836 | adapter->this_id); | |
4837 | } | |
4838 | #endif | |
4839 | ||
4840 | pci_set_drvdata(pdev, host); | |
4841 | ||
4842 | mega_create_proc_entry(hba_count, mega_proc_dir_entry); | |
4843 | ||
4844 | error = scsi_add_host(host, &pdev->dev); | |
4845 | if (error) | |
4846 | goto out_free_mbox; | |
4847 | ||
4848 | scsi_scan_host(host); | |
4849 | hba_count++; | |
4850 | return 0; | |
4851 | ||
4852 | out_free_mbox: | |
4853 | pci_free_consistent(adapter->dev, sizeof(mbox64_t), | |
4854 | adapter->una_mbox64, adapter->una_mbox64_dma); | |
4855 | out_free_irq: | |
4856 | free_irq(adapter->host->irq, adapter); | |
4857 | out_free_scb_list: | |
4858 | kfree(adapter->scb_list); | |
4859 | out_free_cmd_buffer: | |
4860 | pci_free_consistent(adapter->dev, MEGA_BUFFER_SIZE, | |
4861 | adapter->mega_buffer, adapter->buf_dma_handle); | |
4862 | out_host_put: | |
4863 | scsi_host_put(host); | |
4864 | out_iounmap: | |
4865 | if (flag & BOARD_MEMMAP) | |
4866 | iounmap((void *)mega_baseport); | |
4867 | out_release_region: | |
4868 | if (flag & BOARD_MEMMAP) | |
4869 | release_mem_region(tbase, 128); | |
4870 | else | |
4871 | release_region(mega_baseport, 16); | |
4872 | out_disable_device: | |
4873 | pci_disable_device(pdev); | |
4874 | out: | |
4875 | return error; | |
4876 | } | |
4877 | ||
4878 | static void | |
4879 | __megaraid_shutdown(adapter_t *adapter) | |
4880 | { | |
4881 | u_char raw_mbox[sizeof(struct mbox_out)]; | |
4882 | mbox_t *mbox = (mbox_t *)raw_mbox; | |
4883 | int i; | |
4884 | ||
4885 | /* Flush adapter cache */ | |
4886 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); | |
4887 | raw_mbox[0] = FLUSH_ADAPTER; | |
4888 | ||
4889 | free_irq(adapter->host->irq, adapter); | |
4890 | ||
4891 | /* Issue a blocking (interrupts disabled) command to the card */ | |
4892 | issue_scb_block(adapter, raw_mbox); | |
4893 | ||
4894 | /* Flush disks cache */ | |
4895 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); | |
4896 | raw_mbox[0] = FLUSH_SYSTEM; | |
4897 | ||
4898 | /* Issue a blocking (interrupts disabled) command to the card */ | |
4899 | issue_scb_block(adapter, raw_mbox); | |
4900 | ||
4901 | if (atomic_read(&adapter->pend_cmds) > 0) | |
4902 | printk(KERN_WARNING "megaraid: pending commands!!\n"); | |
4903 | ||
4904 | /* | |
4905 | * Have a delibrate delay to make sure all the caches are | |
4906 | * actually flushed. | |
4907 | */ | |
4908 | for (i = 0; i <= 10; i++) | |
4909 | mdelay(1000); | |
4910 | } | |
4911 | ||
bfd90dce | 4912 | static void __devexit |
1da177e4 LT |
4913 | megaraid_remove_one(struct pci_dev *pdev) |
4914 | { | |
4915 | struct Scsi_Host *host = pci_get_drvdata(pdev); | |
4916 | adapter_t *adapter = (adapter_t *)host->hostdata; | |
1da177e4 LT |
4917 | |
4918 | scsi_remove_host(host); | |
4919 | ||
4920 | __megaraid_shutdown(adapter); | |
4921 | ||
4922 | /* Free our resources */ | |
4923 | if (adapter->flag & BOARD_MEMMAP) { | |
4924 | iounmap((void *)adapter->base); | |
4925 | release_mem_region(adapter->host->base, 128); | |
4926 | } else | |
4927 | release_region(adapter->base, 16); | |
4928 | ||
4929 | mega_free_sgl(adapter); | |
4930 | ||
4931 | #ifdef CONFIG_PROC_FS | |
4932 | if (adapter->controller_proc_dir_entry) { | |
4933 | remove_proc_entry("stat", adapter->controller_proc_dir_entry); | |
4934 | remove_proc_entry("config", | |
4935 | adapter->controller_proc_dir_entry); | |
4936 | remove_proc_entry("mailbox", | |
4937 | adapter->controller_proc_dir_entry); | |
4938 | #if MEGA_HAVE_ENH_PROC | |
4939 | remove_proc_entry("rebuild-rate", | |
4940 | adapter->controller_proc_dir_entry); | |
4941 | remove_proc_entry("battery-status", | |
4942 | adapter->controller_proc_dir_entry); | |
4943 | ||
4944 | remove_proc_entry("diskdrives-ch0", | |
4945 | adapter->controller_proc_dir_entry); | |
4946 | remove_proc_entry("diskdrives-ch1", | |
4947 | adapter->controller_proc_dir_entry); | |
4948 | remove_proc_entry("diskdrives-ch2", | |
4949 | adapter->controller_proc_dir_entry); | |
4950 | remove_proc_entry("diskdrives-ch3", | |
4951 | adapter->controller_proc_dir_entry); | |
4952 | ||
4953 | remove_proc_entry("raiddrives-0-9", | |
4954 | adapter->controller_proc_dir_entry); | |
4955 | remove_proc_entry("raiddrives-10-19", | |
4956 | adapter->controller_proc_dir_entry); | |
4957 | remove_proc_entry("raiddrives-20-29", | |
4958 | adapter->controller_proc_dir_entry); | |
4959 | remove_proc_entry("raiddrives-30-39", | |
4960 | adapter->controller_proc_dir_entry); | |
4961 | #endif | |
84a3c97b | 4962 | { |
4963 | char buf[12] = { 0 }; | |
4964 | sprintf(buf, "hba%d", adapter->host->host_no); | |
4965 | remove_proc_entry(buf, mega_proc_dir_entry); | |
4966 | } | |
1da177e4 LT |
4967 | } |
4968 | #endif | |
4969 | ||
4970 | pci_free_consistent(adapter->dev, MEGA_BUFFER_SIZE, | |
4971 | adapter->mega_buffer, adapter->buf_dma_handle); | |
4972 | kfree(adapter->scb_list); | |
4973 | pci_free_consistent(adapter->dev, sizeof(mbox64_t), | |
4974 | adapter->una_mbox64, adapter->una_mbox64_dma); | |
4975 | ||
4976 | scsi_host_put(host); | |
4977 | pci_disable_device(pdev); | |
4978 | ||
4979 | hba_count--; | |
4980 | } | |
4981 | ||
4982 | static void | |
d18c3db5 | 4983 | megaraid_shutdown(struct pci_dev *pdev) |
1da177e4 | 4984 | { |
d18c3db5 | 4985 | struct Scsi_Host *host = pci_get_drvdata(pdev); |
1da177e4 LT |
4986 | adapter_t *adapter = (adapter_t *)host->hostdata; |
4987 | ||
4988 | __megaraid_shutdown(adapter); | |
4989 | } | |
4990 | ||
4991 | static struct pci_device_id megaraid_pci_tbl[] = { | |
1da177e4 LT |
4992 | {PCI_VENDOR_ID_AMI, PCI_DEVICE_ID_AMI_MEGARAID, |
4993 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, | |
4994 | {PCI_VENDOR_ID_AMI, PCI_DEVICE_ID_AMI_MEGARAID2, | |
4995 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, | |
1da177e4 LT |
4996 | {PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_AMI_MEGARAID3, |
4997 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, | |
1da177e4 LT |
4998 | {0,} |
4999 | }; | |
5000 | MODULE_DEVICE_TABLE(pci, megaraid_pci_tbl); | |
5001 | ||
5002 | static struct pci_driver megaraid_pci_driver = { | |
3542adcb | 5003 | .name = "megaraid_legacy", |
1da177e4 LT |
5004 | .id_table = megaraid_pci_tbl, |
5005 | .probe = megaraid_probe_one, | |
5006 | .remove = __devexit_p(megaraid_remove_one), | |
d18c3db5 | 5007 | .shutdown = megaraid_shutdown, |
1da177e4 LT |
5008 | }; |
5009 | ||
5010 | static int __init megaraid_init(void) | |
5011 | { | |
5012 | int error; | |
5013 | ||
5014 | if ((max_cmd_per_lun <= 0) || (max_cmd_per_lun > MAX_CMD_PER_LUN)) | |
5015 | max_cmd_per_lun = MAX_CMD_PER_LUN; | |
5016 | if (max_mbox_busy_wait > MBOX_BUSY_WAIT) | |
5017 | max_mbox_busy_wait = MBOX_BUSY_WAIT; | |
5018 | ||
5019 | #ifdef CONFIG_PROC_FS | |
c74c120a | 5020 | mega_proc_dir_entry = proc_mkdir("megaraid", NULL); |
1da177e4 LT |
5021 | if (!mega_proc_dir_entry) { |
5022 | printk(KERN_WARNING | |
5023 | "megaraid: failed to create megaraid root\n"); | |
5024 | } | |
5025 | #endif | |
4520b008 | 5026 | error = pci_register_driver(&megaraid_pci_driver); |
1da177e4 LT |
5027 | if (error) { |
5028 | #ifdef CONFIG_PROC_FS | |
c74c120a | 5029 | remove_proc_entry("megaraid", NULL); |
1da177e4 LT |
5030 | #endif |
5031 | return error; | |
5032 | } | |
5033 | ||
5034 | /* | |
5035 | * Register the driver as a character device, for applications | |
5036 | * to access it for ioctls. | |
5037 | * First argument (major) to register_chrdev implies a dynamic | |
5038 | * major number allocation. | |
5039 | */ | |
3492b328 | 5040 | major = register_chrdev(0, "megadev_legacy", &megadev_fops); |
1da177e4 LT |
5041 | if (!major) { |
5042 | printk(KERN_WARNING | |
5043 | "megaraid: failed to register char device\n"); | |
5044 | } | |
5045 | ||
5046 | return 0; | |
5047 | } | |
5048 | ||
5049 | static void __exit megaraid_exit(void) | |
5050 | { | |
5051 | /* | |
5052 | * Unregister the character device interface to the driver. | |
5053 | */ | |
3492b328 | 5054 | unregister_chrdev(major, "megadev_legacy"); |
1da177e4 LT |
5055 | |
5056 | pci_unregister_driver(&megaraid_pci_driver); | |
5057 | ||
5058 | #ifdef CONFIG_PROC_FS | |
c74c120a | 5059 | remove_proc_entry("megaraid", NULL); |
1da177e4 LT |
5060 | #endif |
5061 | } | |
5062 | ||
5063 | module_init(megaraid_init); | |
5064 | module_exit(megaraid_exit); | |
5065 | ||
5066 | /* vi: set ts=8 sw=8 tw=78: */ |