]>
Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * | |
3 | * Linux MegaRAID device driver | |
4 | * | |
3492b328 | 5 | * Copyright (c) 2002 LSI Logic Corporation. |
1da177e4 LT |
6 | * |
7 | * This program is free software; you can redistribute it and/or | |
8 | * modify it under the terms of the GNU General Public License | |
9 | * as published by the Free Software Foundation; either version | |
10 | * 2 of the License, or (at your option) any later version. | |
11 | * | |
12 | * Copyright (c) 2002 Red Hat, Inc. All rights reserved. | |
13 | * - fixes | |
14 | * - speed-ups (list handling fixes, issued_list, optimizations.) | |
15 | * - lots of cleanups. | |
16 | * | |
17 | * Copyright (c) 2003 Christoph Hellwig <hch@lst.de> | |
18 | * - new-style, hotplug-aware pci probing and scsi registration | |
19 | * | |
3492b328 JS |
20 | * Version : v2.00.4 Mon Nov 14 14:02:43 EST 2005 - Seokmann Ju |
21 | * <Seokmann.Ju@lsil.com> | |
1da177e4 LT |
22 | * |
23 | * Description: Linux device driver for LSI Logic MegaRAID controller | |
24 | * | |
25 | * Supported controllers: MegaRAID 418, 428, 438, 466, 762, 467, 471, 490, 493 | |
26 | * 518, 520, 531, 532 | |
27 | * | |
28 | * This driver is supported by LSI Logic, with assistance from Red Hat, Dell, | |
29 | * and others. Please send updates to the mailing list | |
30 | * linux-scsi@vger.kernel.org . | |
31 | * | |
32 | */ | |
33 | ||
34 | #include <linux/mm.h> | |
35 | #include <linux/fs.h> | |
36 | #include <linux/blkdev.h> | |
37 | #include <asm/uaccess.h> | |
38 | #include <asm/io.h> | |
8d115f84 | 39 | #include <linux/completion.h> |
1da177e4 LT |
40 | #include <linux/delay.h> |
41 | #include <linux/proc_fs.h> | |
42 | #include <linux/reboot.h> | |
43 | #include <linux/module.h> | |
44 | #include <linux/list.h> | |
45 | #include <linux/interrupt.h> | |
46 | #include <linux/pci.h> | |
47 | #include <linux/init.h> | |
910638ae | 48 | #include <linux/dma-mapping.h> |
c45d15d2 | 49 | #include <linux/mutex.h> |
5a0e3ad6 | 50 | #include <linux/slab.h> |
1da177e4 LT |
51 | #include <scsi/scsicam.h> |
52 | ||
53 | #include "scsi.h" | |
54 | #include <scsi/scsi_host.h> | |
55 | ||
56 | #include "megaraid.h" | |
57 | ||
3492b328 | 58 | #define MEGARAID_MODULE_VERSION "2.00.4" |
1da177e4 | 59 | |
3492b328 JS |
60 | MODULE_AUTHOR ("sju@lsil.com"); |
61 | MODULE_DESCRIPTION ("LSI Logic MegaRAID legacy driver"); | |
1da177e4 LT |
62 | MODULE_LICENSE ("GPL"); |
63 | MODULE_VERSION(MEGARAID_MODULE_VERSION); | |
64 | ||
c45d15d2 | 65 | static DEFINE_MUTEX(megadev_mutex); |
1da177e4 LT |
66 | static unsigned int max_cmd_per_lun = DEF_CMD_PER_LUN; |
67 | module_param(max_cmd_per_lun, uint, 0); | |
68 | MODULE_PARM_DESC(max_cmd_per_lun, "Maximum number of commands which can be issued to a single LUN (default=DEF_CMD_PER_LUN=63)"); | |
69 | ||
70 | static unsigned short int max_sectors_per_io = MAX_SECTORS_PER_IO; | |
71 | module_param(max_sectors_per_io, ushort, 0); | |
72 | MODULE_PARM_DESC(max_sectors_per_io, "Maximum number of sectors per I/O request (default=MAX_SECTORS_PER_IO=128)"); | |
73 | ||
74 | ||
75 | static unsigned short int max_mbox_busy_wait = MBOX_BUSY_WAIT; | |
76 | module_param(max_mbox_busy_wait, ushort, 0); | |
77 | MODULE_PARM_DESC(max_mbox_busy_wait, "Maximum wait for mailbox in microseconds if busy (default=MBOX_BUSY_WAIT=10)"); | |
78 | ||
00769ec4 JG |
79 | #define RDINDOOR(adapter) readl((adapter)->mmio_base + 0x20) |
80 | #define RDOUTDOOR(adapter) readl((adapter)->mmio_base + 0x2C) | |
81 | #define WRINDOOR(adapter,value) writel(value, (adapter)->mmio_base + 0x20) | |
82 | #define WROUTDOOR(adapter,value) writel(value, (adapter)->mmio_base + 0x2C) | |
1da177e4 LT |
83 | |
84 | /* | |
85 | * Global variables | |
86 | */ | |
87 | ||
88 | static int hba_count; | |
89 | static adapter_t *hba_soft_state[MAX_CONTROLLERS]; | |
90 | static struct proc_dir_entry *mega_proc_dir_entry; | |
91 | ||
92 | /* For controller re-ordering */ | |
93 | static struct mega_hbas mega_hbas[MAX_CONTROLLERS]; | |
94 | ||
f4927c45 AB |
95 | static long |
96 | megadev_unlocked_ioctl(struct file *filep, unsigned int cmd, unsigned long arg); | |
97 | ||
1da177e4 LT |
98 | /* |
99 | * The File Operations structure for the serial/ioctl interface of the driver | |
100 | */ | |
00977a59 | 101 | static const struct file_operations megadev_fops = { |
1da177e4 | 102 | .owner = THIS_MODULE, |
f4927c45 | 103 | .unlocked_ioctl = megadev_unlocked_ioctl, |
1da177e4 | 104 | .open = megadev_open, |
6038f373 | 105 | .llseek = noop_llseek, |
1da177e4 LT |
106 | }; |
107 | ||
108 | /* | |
109 | * Array to structures for storing the information about the controllers. This | |
110 | * information is sent to the user level applications, when they do an ioctl | |
111 | * for this information. | |
112 | */ | |
113 | static struct mcontroller mcontroller[MAX_CONTROLLERS]; | |
114 | ||
115 | /* The current driver version */ | |
116 | static u32 driver_ver = 0x02000000; | |
117 | ||
118 | /* major number used by the device for character interface */ | |
119 | static int major; | |
120 | ||
121 | #define IS_RAID_CH(hba, ch) (((hba)->mega_ch_class >> (ch)) & 0x01) | |
122 | ||
123 | ||
124 | /* | |
125 | * Debug variable to print some diagnostic messages | |
126 | */ | |
127 | static int trace_level; | |
128 | ||
129 | /** | |
130 | * mega_setup_mailbox() | |
131 | * @adapter - pointer to our soft state | |
132 | * | |
133 | * Allocates a 8 byte aligned memory for the handshake mailbox. | |
134 | */ | |
135 | static int | |
136 | mega_setup_mailbox(adapter_t *adapter) | |
137 | { | |
138 | unsigned long align; | |
139 | ||
140 | adapter->una_mbox64 = pci_alloc_consistent(adapter->dev, | |
141 | sizeof(mbox64_t), &adapter->una_mbox64_dma); | |
142 | ||
143 | if( !adapter->una_mbox64 ) return -1; | |
144 | ||
145 | adapter->mbox = &adapter->una_mbox64->mbox; | |
146 | ||
147 | adapter->mbox = (mbox_t *)((((unsigned long) adapter->mbox) + 15) & | |
148 | (~0UL ^ 0xFUL)); | |
149 | ||
150 | adapter->mbox64 = (mbox64_t *)(((unsigned long)adapter->mbox) - 8); | |
151 | ||
152 | align = ((void *)adapter->mbox) - ((void *)&adapter->una_mbox64->mbox); | |
153 | ||
154 | adapter->mbox_dma = adapter->una_mbox64_dma + 8 + align; | |
155 | ||
156 | /* | |
157 | * Register the mailbox if the controller is an io-mapped controller | |
158 | */ | |
159 | if( adapter->flag & BOARD_IOMAP ) { | |
160 | ||
7d1abbe8 | 161 | outb(adapter->mbox_dma & 0xFF, |
1da177e4 LT |
162 | adapter->host->io_port + MBOX_PORT0); |
163 | ||
7d1abbe8 | 164 | outb((adapter->mbox_dma >> 8) & 0xFF, |
1da177e4 LT |
165 | adapter->host->io_port + MBOX_PORT1); |
166 | ||
7d1abbe8 | 167 | outb((adapter->mbox_dma >> 16) & 0xFF, |
1da177e4 LT |
168 | adapter->host->io_port + MBOX_PORT2); |
169 | ||
7d1abbe8 | 170 | outb((adapter->mbox_dma >> 24) & 0xFF, |
1da177e4 LT |
171 | adapter->host->io_port + MBOX_PORT3); |
172 | ||
7d1abbe8 | 173 | outb(ENABLE_MBOX_BYTE, |
1da177e4 LT |
174 | adapter->host->io_port + ENABLE_MBOX_REGION); |
175 | ||
176 | irq_ack(adapter); | |
177 | ||
178 | irq_enable(adapter); | |
179 | } | |
180 | ||
181 | return 0; | |
182 | } | |
183 | ||
184 | ||
185 | /* | |
186 | * mega_query_adapter() | |
187 | * @adapter - pointer to our soft state | |
188 | * | |
189 | * Issue the adapter inquiry commands to the controller and find out | |
190 | * information and parameter about the devices attached | |
191 | */ | |
192 | static int | |
193 | mega_query_adapter(adapter_t *adapter) | |
194 | { | |
195 | dma_addr_t prod_info_dma_handle; | |
196 | mega_inquiry3 *inquiry3; | |
197 | u8 raw_mbox[sizeof(struct mbox_out)]; | |
198 | mbox_t *mbox; | |
199 | int retval; | |
200 | ||
201 | /* Initialize adapter inquiry mailbox */ | |
202 | ||
203 | mbox = (mbox_t *)raw_mbox; | |
204 | ||
205 | memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE); | |
206 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); | |
207 | ||
208 | /* | |
209 | * Try to issue Inquiry3 command | |
210 | * if not succeeded, then issue MEGA_MBOXCMD_ADAPTERINQ command and | |
211 | * update enquiry3 structure | |
212 | */ | |
213 | mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle; | |
214 | ||
215 | inquiry3 = (mega_inquiry3 *)adapter->mega_buffer; | |
216 | ||
217 | raw_mbox[0] = FC_NEW_CONFIG; /* i.e. mbox->cmd=0xA1 */ | |
218 | raw_mbox[2] = NC_SUBOP_ENQUIRY3; /* i.e. 0x0F */ | |
219 | raw_mbox[3] = ENQ3_GET_SOLICITED_FULL; /* i.e. 0x02 */ | |
220 | ||
221 | /* Issue a blocking command to the card */ | |
222 | if ((retval = issue_scb_block(adapter, raw_mbox))) { | |
223 | /* the adapter does not support 40ld */ | |
224 | ||
225 | mraid_ext_inquiry *ext_inq; | |
226 | mraid_inquiry *inq; | |
227 | dma_addr_t dma_handle; | |
228 | ||
229 | ext_inq = pci_alloc_consistent(adapter->dev, | |
230 | sizeof(mraid_ext_inquiry), &dma_handle); | |
231 | ||
232 | if( ext_inq == NULL ) return -1; | |
233 | ||
234 | inq = &ext_inq->raid_inq; | |
235 | ||
236 | mbox->m_out.xferaddr = (u32)dma_handle; | |
237 | ||
238 | /*issue old 0x04 command to adapter */ | |
239 | mbox->m_out.cmd = MEGA_MBOXCMD_ADPEXTINQ; | |
240 | ||
241 | issue_scb_block(adapter, raw_mbox); | |
242 | ||
243 | /* | |
244 | * update Enquiry3 and ProductInfo structures with | |
245 | * mraid_inquiry structure | |
246 | */ | |
247 | mega_8_to_40ld(inq, inquiry3, | |
248 | (mega_product_info *)&adapter->product_info); | |
249 | ||
250 | pci_free_consistent(adapter->dev, sizeof(mraid_ext_inquiry), | |
251 | ext_inq, dma_handle); | |
252 | ||
253 | } else { /*adapter supports 40ld */ | |
254 | adapter->flag |= BOARD_40LD; | |
255 | ||
256 | /* | |
257 | * get product_info, which is static information and will be | |
258 | * unchanged | |
259 | */ | |
260 | prod_info_dma_handle = pci_map_single(adapter->dev, (void *) | |
261 | &adapter->product_info, | |
262 | sizeof(mega_product_info), PCI_DMA_FROMDEVICE); | |
263 | ||
264 | mbox->m_out.xferaddr = prod_info_dma_handle; | |
265 | ||
266 | raw_mbox[0] = FC_NEW_CONFIG; /* i.e. mbox->cmd=0xA1 */ | |
267 | raw_mbox[2] = NC_SUBOP_PRODUCT_INFO; /* i.e. 0x0E */ | |
268 | ||
269 | if ((retval = issue_scb_block(adapter, raw_mbox))) | |
270 | printk(KERN_WARNING | |
271 | "megaraid: Product_info cmd failed with error: %d\n", | |
272 | retval); | |
273 | ||
274 | pci_unmap_single(adapter->dev, prod_info_dma_handle, | |
275 | sizeof(mega_product_info), PCI_DMA_FROMDEVICE); | |
276 | } | |
277 | ||
278 | ||
279 | /* | |
280 | * kernel scans the channels from 0 to <= max_channel | |
281 | */ | |
282 | adapter->host->max_channel = | |
283 | adapter->product_info.nchannels + NVIRT_CHAN -1; | |
284 | ||
285 | adapter->host->max_id = 16; /* max targets per channel */ | |
286 | ||
25985edc | 287 | adapter->host->max_lun = 7; /* Up to 7 luns for non disk devices */ |
1da177e4 LT |
288 | |
289 | adapter->host->cmd_per_lun = max_cmd_per_lun; | |
290 | ||
291 | adapter->numldrv = inquiry3->num_ldrv; | |
292 | ||
293 | adapter->max_cmds = adapter->product_info.max_commands; | |
294 | ||
295 | if(adapter->max_cmds > MAX_COMMANDS) | |
296 | adapter->max_cmds = MAX_COMMANDS; | |
297 | ||
298 | adapter->host->can_queue = adapter->max_cmds - 1; | |
299 | ||
300 | /* | |
301 | * Get the maximum number of scatter-gather elements supported by this | |
302 | * firmware | |
303 | */ | |
304 | mega_get_max_sgl(adapter); | |
305 | ||
306 | adapter->host->sg_tablesize = adapter->sglen; | |
307 | ||
124dd90f AR |
308 | /* use HP firmware and bios version encoding |
309 | Note: fw_version[0|1] and bios_version[0|1] were originally shifted | |
310 | right 8 bits making them zero. This 0 value was hardcoded to fix | |
311 | sparse warnings. */ | |
54ebfd57 | 312 | if (adapter->product_info.subsysvid == PCI_VENDOR_ID_HP) { |
1da177e4 LT |
313 | sprintf (adapter->fw_version, "%c%d%d.%d%d", |
314 | adapter->product_info.fw_version[2], | |
124dd90f | 315 | 0, |
1da177e4 | 316 | adapter->product_info.fw_version[1] & 0x0f, |
124dd90f | 317 | 0, |
1da177e4 LT |
318 | adapter->product_info.fw_version[0] & 0x0f); |
319 | sprintf (adapter->bios_version, "%c%d%d.%d%d", | |
320 | adapter->product_info.bios_version[2], | |
124dd90f | 321 | 0, |
1da177e4 | 322 | adapter->product_info.bios_version[1] & 0x0f, |
124dd90f | 323 | 0, |
1da177e4 LT |
324 | adapter->product_info.bios_version[0] & 0x0f); |
325 | } else { | |
326 | memcpy(adapter->fw_version, | |
327 | (char *)adapter->product_info.fw_version, 4); | |
328 | adapter->fw_version[4] = 0; | |
329 | ||
330 | memcpy(adapter->bios_version, | |
331 | (char *)adapter->product_info.bios_version, 4); | |
332 | ||
333 | adapter->bios_version[4] = 0; | |
334 | } | |
335 | ||
336 | printk(KERN_NOTICE "megaraid: [%s:%s] detected %d logical drives.\n", | |
337 | adapter->fw_version, adapter->bios_version, adapter->numldrv); | |
338 | ||
339 | /* | |
340 | * Do we support extended (>10 bytes) cdbs | |
341 | */ | |
342 | adapter->support_ext_cdb = mega_support_ext_cdb(adapter); | |
343 | if (adapter->support_ext_cdb) | |
344 | printk(KERN_NOTICE "megaraid: supports extended CDBs.\n"); | |
345 | ||
346 | ||
347 | return 0; | |
348 | } | |
349 | ||
350 | /** | |
351 | * mega_runpendq() | |
352 | * @adapter - pointer to our soft state | |
353 | * | |
354 | * Runs through the list of pending requests. | |
355 | */ | |
356 | static inline void | |
357 | mega_runpendq(adapter_t *adapter) | |
358 | { | |
359 | if(!list_empty(&adapter->pending_list)) | |
360 | __mega_runpendq(adapter); | |
361 | } | |
362 | ||
363 | /* | |
364 | * megaraid_queue() | |
365 | * @scmd - Issue this scsi command | |
366 | * @done - the callback hook into the scsi mid-layer | |
367 | * | |
368 | * The command queuing entry point for the mid-layer. | |
369 | */ | |
370 | static int | |
f281233d | 371 | megaraid_queue_lck(Scsi_Cmnd *scmd, void (*done)(Scsi_Cmnd *)) |
1da177e4 LT |
372 | { |
373 | adapter_t *adapter; | |
374 | scb_t *scb; | |
375 | int busy=0; | |
cb0258a2 | 376 | unsigned long flags; |
1da177e4 LT |
377 | |
378 | adapter = (adapter_t *)scmd->device->host->hostdata; | |
379 | ||
380 | scmd->scsi_done = done; | |
381 | ||
382 | ||
383 | /* | |
384 | * Allocate and build a SCB request | |
385 | * busy flag will be set if mega_build_cmd() command could not | |
386 | * allocate scb. We will return non-zero status in that case. | |
387 | * NOTE: scb can be null even though certain commands completed | |
388 | * successfully, e.g., MODE_SENSE and TEST_UNIT_READY, we would | |
389 | * return 0 in that case. | |
390 | */ | |
391 | ||
cb0258a2 | 392 | spin_lock_irqsave(&adapter->lock, flags); |
1da177e4 | 393 | scb = mega_build_cmd(adapter, scmd, &busy); |
238f9b06 CH |
394 | if (!scb) |
395 | goto out; | |
1da177e4 | 396 | |
238f9b06 CH |
397 | scb->state |= SCB_PENDQ; |
398 | list_add_tail(&scb->list, &adapter->pending_list); | |
1da177e4 | 399 | |
238f9b06 CH |
400 | /* |
401 | * Check if the HBA is in quiescent state, e.g., during a | |
402 | * delete logical drive opertion. If it is, don't run | |
403 | * the pending_list. | |
404 | */ | |
405 | if (atomic_read(&adapter->quiescent) == 0) | |
406 | mega_runpendq(adapter); | |
1da177e4 | 407 | |
238f9b06 CH |
408 | busy = 0; |
409 | out: | |
410 | spin_unlock_irqrestore(&adapter->lock, flags); | |
1da177e4 LT |
411 | return busy; |
412 | } | |
413 | ||
f281233d JG |
414 | static DEF_SCSI_QCMD(megaraid_queue) |
415 | ||
1da177e4 LT |
416 | /** |
417 | * mega_allocate_scb() | |
418 | * @adapter - pointer to our soft state | |
419 | * @cmd - scsi command from the mid-layer | |
420 | * | |
421 | * Allocate a SCB structure. This is the central structure for controller | |
422 | * commands. | |
423 | */ | |
424 | static inline scb_t * | |
425 | mega_allocate_scb(adapter_t *adapter, Scsi_Cmnd *cmd) | |
426 | { | |
427 | struct list_head *head = &adapter->free_list; | |
428 | scb_t *scb; | |
429 | ||
430 | /* Unlink command from Free List */ | |
431 | if( !list_empty(head) ) { | |
432 | ||
433 | scb = list_entry(head->next, scb_t, list); | |
434 | ||
435 | list_del_init(head->next); | |
436 | ||
437 | scb->state = SCB_ACTIVE; | |
438 | scb->cmd = cmd; | |
439 | scb->dma_type = MEGA_DMA_TYPE_NONE; | |
440 | ||
441 | return scb; | |
442 | } | |
443 | ||
444 | return NULL; | |
445 | } | |
446 | ||
447 | /** | |
448 | * mega_get_ldrv_num() | |
449 | * @adapter - pointer to our soft state | |
450 | * @cmd - scsi mid layer command | |
451 | * @channel - channel on the controller | |
452 | * | |
453 | * Calculate the logical drive number based on the information in scsi command | |
454 | * and the channel number. | |
455 | */ | |
456 | static inline int | |
457 | mega_get_ldrv_num(adapter_t *adapter, Scsi_Cmnd *cmd, int channel) | |
458 | { | |
459 | int tgt; | |
460 | int ldrv_num; | |
461 | ||
462 | tgt = cmd->device->id; | |
463 | ||
464 | if ( tgt > adapter->this_id ) | |
465 | tgt--; /* we do not get inquires for initiator id */ | |
466 | ||
467 | ldrv_num = (channel * 15) + tgt; | |
468 | ||
469 | ||
470 | /* | |
471 | * If we have a logical drive with boot enabled, project it first | |
472 | */ | |
473 | if( adapter->boot_ldrv_enabled ) { | |
474 | if( ldrv_num == 0 ) { | |
475 | ldrv_num = adapter->boot_ldrv; | |
476 | } | |
477 | else { | |
478 | if( ldrv_num <= adapter->boot_ldrv ) { | |
479 | ldrv_num--; | |
480 | } | |
481 | } | |
482 | } | |
483 | ||
484 | /* | |
485 | * If "delete logical drive" feature is enabled on this controller. | |
486 | * Do only if at least one delete logical drive operation was done. | |
487 | * | |
488 | * Also, after logical drive deletion, instead of logical drive number, | |
489 | * the value returned should be 0x80+logical drive id. | |
490 | * | |
491 | * These is valid only for IO commands. | |
492 | */ | |
493 | ||
494 | if (adapter->support_random_del && adapter->read_ldidmap ) | |
495 | switch (cmd->cmnd[0]) { | |
496 | case READ_6: /* fall through */ | |
497 | case WRITE_6: /* fall through */ | |
498 | case READ_10: /* fall through */ | |
499 | case WRITE_10: | |
500 | ldrv_num += 0x80; | |
501 | } | |
502 | ||
503 | return ldrv_num; | |
504 | } | |
505 | ||
506 | /** | |
507 | * mega_build_cmd() | |
508 | * @adapter - pointer to our soft state | |
509 | * @cmd - Prepare using this scsi command | |
510 | * @busy - busy flag if no resources | |
511 | * | |
512 | * Prepares a command and scatter gather list for the controller. This routine | |
513 | * also finds out if the commands is intended for a logical drive or a | |
514 | * physical device and prepares the controller command accordingly. | |
515 | * | |
516 | * We also re-order the logical drives and physical devices based on their | |
517 | * boot settings. | |
518 | */ | |
519 | static scb_t * | |
520 | mega_build_cmd(adapter_t *adapter, Scsi_Cmnd *cmd, int *busy) | |
521 | { | |
522 | mega_ext_passthru *epthru; | |
523 | mega_passthru *pthru; | |
524 | scb_t *scb; | |
525 | mbox_t *mbox; | |
9d5d93e3 | 526 | u32 seg; |
1da177e4 LT |
527 | char islogical; |
528 | int max_ldrv_num; | |
529 | int channel = 0; | |
530 | int target = 0; | |
531 | int ldrv_num = 0; /* logical drive number */ | |
532 | ||
533 | ||
534 | /* | |
535 | * filter the internal and ioctl commands | |
536 | */ | |
3f6270ef FT |
537 | if((cmd->cmnd[0] == MEGA_INTERNAL_CMD)) |
538 | return (scb_t *)cmd->host_scribble; | |
1da177e4 LT |
539 | |
540 | /* | |
541 | * We know what channels our logical drives are on - mega_find_card() | |
542 | */ | |
543 | islogical = adapter->logdrv_chan[cmd->device->channel]; | |
544 | ||
545 | /* | |
546 | * The theory: If physical drive is chosen for boot, all the physical | |
547 | * devices are exported before the logical drives, otherwise physical | |
548 | * devices are pushed after logical drives, in which case - Kernel sees | |
549 | * the physical devices on virtual channel which is obviously converted | |
550 | * to actual channel on the HBA. | |
551 | */ | |
552 | if( adapter->boot_pdrv_enabled ) { | |
553 | if( islogical ) { | |
554 | /* logical channel */ | |
555 | channel = cmd->device->channel - | |
556 | adapter->product_info.nchannels; | |
557 | } | |
558 | else { | |
559 | /* this is physical channel */ | |
560 | channel = cmd->device->channel; | |
561 | target = cmd->device->id; | |
562 | ||
563 | /* | |
564 | * boot from a physical disk, that disk needs to be | |
565 | * exposed first IF both the channels are SCSI, then | |
566 | * booting from the second channel is not allowed. | |
567 | */ | |
568 | if( target == 0 ) { | |
569 | target = adapter->boot_pdrv_tgt; | |
570 | } | |
571 | else if( target == adapter->boot_pdrv_tgt ) { | |
572 | target = 0; | |
573 | } | |
574 | } | |
575 | } | |
576 | else { | |
577 | if( islogical ) { | |
578 | /* this is the logical channel */ | |
579 | channel = cmd->device->channel; | |
580 | } | |
581 | else { | |
582 | /* physical channel */ | |
583 | channel = cmd->device->channel - NVIRT_CHAN; | |
584 | target = cmd->device->id; | |
585 | } | |
586 | } | |
587 | ||
588 | ||
589 | if(islogical) { | |
590 | ||
591 | /* have just LUN 0 for each target on virtual channels */ | |
592 | if (cmd->device->lun) { | |
593 | cmd->result = (DID_BAD_TARGET << 16); | |
594 | cmd->scsi_done(cmd); | |
595 | return NULL; | |
596 | } | |
597 | ||
598 | ldrv_num = mega_get_ldrv_num(adapter, cmd, channel); | |
599 | ||
600 | ||
601 | max_ldrv_num = (adapter->flag & BOARD_40LD) ? | |
602 | MAX_LOGICAL_DRIVES_40LD : MAX_LOGICAL_DRIVES_8LD; | |
603 | ||
604 | /* | |
605 | * max_ldrv_num increases by 0x80 if some logical drive was | |
606 | * deleted. | |
607 | */ | |
608 | if(adapter->read_ldidmap) | |
609 | max_ldrv_num += 0x80; | |
610 | ||
611 | if(ldrv_num > max_ldrv_num ) { | |
612 | cmd->result = (DID_BAD_TARGET << 16); | |
613 | cmd->scsi_done(cmd); | |
614 | return NULL; | |
615 | } | |
616 | ||
617 | } | |
618 | else { | |
619 | if( cmd->device->lun > 7) { | |
620 | /* | |
621 | * Do not support lun >7 for physically accessed | |
622 | * devices | |
623 | */ | |
624 | cmd->result = (DID_BAD_TARGET << 16); | |
625 | cmd->scsi_done(cmd); | |
626 | return NULL; | |
627 | } | |
628 | } | |
629 | ||
630 | /* | |
631 | * | |
632 | * Logical drive commands | |
633 | * | |
634 | */ | |
635 | if(islogical) { | |
636 | switch (cmd->cmnd[0]) { | |
637 | case TEST_UNIT_READY: | |
1da177e4 LT |
638 | #if MEGA_HAVE_CLUSTERING |
639 | /* | |
640 | * Do we support clustering and is the support enabled | |
641 | * If no, return success always | |
642 | */ | |
643 | if( !adapter->has_cluster ) { | |
644 | cmd->result = (DID_OK << 16); | |
645 | cmd->scsi_done(cmd); | |
646 | return NULL; | |
647 | } | |
648 | ||
649 | if(!(scb = mega_allocate_scb(adapter, cmd))) { | |
650 | *busy = 1; | |
651 | return NULL; | |
652 | } | |
653 | ||
654 | scb->raw_mbox[0] = MEGA_CLUSTER_CMD; | |
655 | scb->raw_mbox[2] = MEGA_RESERVATION_STATUS; | |
656 | scb->raw_mbox[3] = ldrv_num; | |
657 | ||
658 | scb->dma_direction = PCI_DMA_NONE; | |
659 | ||
660 | return scb; | |
661 | #else | |
662 | cmd->result = (DID_OK << 16); | |
663 | cmd->scsi_done(cmd); | |
664 | return NULL; | |
665 | #endif | |
666 | ||
51c928c3 JB |
667 | case MODE_SENSE: { |
668 | char *buf; | |
3f6270ef | 669 | struct scatterlist *sg; |
51c928c3 | 670 | |
3f6270ef | 671 | sg = scsi_sglist(cmd); |
77dfce07 | 672 | buf = kmap_atomic(sg_page(sg)) + sg->offset; |
51c928c3 | 673 | |
f0353301 | 674 | memset(buf, 0, cmd->cmnd[4]); |
77dfce07 | 675 | kunmap_atomic(buf - sg->offset); |
51c928c3 | 676 | |
1da177e4 LT |
677 | cmd->result = (DID_OK << 16); |
678 | cmd->scsi_done(cmd); | |
679 | return NULL; | |
51c928c3 | 680 | } |
1da177e4 LT |
681 | |
682 | case READ_CAPACITY: | |
683 | case INQUIRY: | |
684 | ||
685 | if(!(adapter->flag & (1L << cmd->device->channel))) { | |
686 | ||
687 | printk(KERN_NOTICE | |
688 | "scsi%d: scanning scsi channel %d ", | |
689 | adapter->host->host_no, | |
690 | cmd->device->channel); | |
691 | printk("for logical drives.\n"); | |
692 | ||
693 | adapter->flag |= (1L << cmd->device->channel); | |
694 | } | |
695 | ||
696 | /* Allocate a SCB and initialize passthru */ | |
697 | if(!(scb = mega_allocate_scb(adapter, cmd))) { | |
698 | *busy = 1; | |
699 | return NULL; | |
700 | } | |
701 | pthru = scb->pthru; | |
702 | ||
703 | mbox = (mbox_t *)scb->raw_mbox; | |
704 | memset(mbox, 0, sizeof(scb->raw_mbox)); | |
705 | memset(pthru, 0, sizeof(mega_passthru)); | |
706 | ||
707 | pthru->timeout = 0; | |
708 | pthru->ars = 1; | |
709 | pthru->reqsenselen = 14; | |
710 | pthru->islogical = 1; | |
711 | pthru->logdrv = ldrv_num; | |
712 | pthru->cdblen = cmd->cmd_len; | |
713 | memcpy(pthru->cdb, cmd->cmnd, cmd->cmd_len); | |
714 | ||
715 | if( adapter->has_64bit_addr ) { | |
716 | mbox->m_out.cmd = MEGA_MBOXCMD_PASSTHRU64; | |
717 | } | |
718 | else { | |
719 | mbox->m_out.cmd = MEGA_MBOXCMD_PASSTHRU; | |
720 | } | |
721 | ||
722 | scb->dma_direction = PCI_DMA_FROMDEVICE; | |
723 | ||
724 | pthru->numsgelements = mega_build_sglist(adapter, scb, | |
725 | &pthru->dataxferaddr, &pthru->dataxferlen); | |
726 | ||
727 | mbox->m_out.xferaddr = scb->pthru_dma_addr; | |
728 | ||
729 | return scb; | |
730 | ||
731 | case READ_6: | |
732 | case WRITE_6: | |
733 | case READ_10: | |
734 | case WRITE_10: | |
735 | case READ_12: | |
736 | case WRITE_12: | |
737 | ||
738 | /* Allocate a SCB and initialize mailbox */ | |
739 | if(!(scb = mega_allocate_scb(adapter, cmd))) { | |
740 | *busy = 1; | |
741 | return NULL; | |
742 | } | |
743 | mbox = (mbox_t *)scb->raw_mbox; | |
744 | ||
745 | memset(mbox, 0, sizeof(scb->raw_mbox)); | |
746 | mbox->m_out.logdrv = ldrv_num; | |
747 | ||
748 | /* | |
749 | * A little hack: 2nd bit is zero for all scsi read | |
750 | * commands and is set for all scsi write commands | |
751 | */ | |
752 | if( adapter->has_64bit_addr ) { | |
753 | mbox->m_out.cmd = (*cmd->cmnd & 0x02) ? | |
754 | MEGA_MBOXCMD_LWRITE64: | |
755 | MEGA_MBOXCMD_LREAD64 ; | |
756 | } | |
757 | else { | |
758 | mbox->m_out.cmd = (*cmd->cmnd & 0x02) ? | |
759 | MEGA_MBOXCMD_LWRITE: | |
760 | MEGA_MBOXCMD_LREAD ; | |
761 | } | |
762 | ||
763 | /* | |
764 | * 6-byte READ(0x08) or WRITE(0x0A) cdb | |
765 | */ | |
766 | if( cmd->cmd_len == 6 ) { | |
767 | mbox->m_out.numsectors = (u32) cmd->cmnd[4]; | |
768 | mbox->m_out.lba = | |
769 | ((u32)cmd->cmnd[1] << 16) | | |
770 | ((u32)cmd->cmnd[2] << 8) | | |
771 | (u32)cmd->cmnd[3]; | |
772 | ||
773 | mbox->m_out.lba &= 0x1FFFFF; | |
774 | ||
775 | #if MEGA_HAVE_STATS | |
776 | /* | |
777 | * Take modulo 0x80, since the logical drive | |
778 | * number increases by 0x80 when a logical | |
779 | * drive was deleted | |
780 | */ | |
781 | if (*cmd->cmnd == READ_6) { | |
782 | adapter->nreads[ldrv_num%0x80]++; | |
783 | adapter->nreadblocks[ldrv_num%0x80] += | |
784 | mbox->m_out.numsectors; | |
785 | } else { | |
786 | adapter->nwrites[ldrv_num%0x80]++; | |
787 | adapter->nwriteblocks[ldrv_num%0x80] += | |
788 | mbox->m_out.numsectors; | |
789 | } | |
790 | #endif | |
791 | } | |
792 | ||
793 | /* | |
794 | * 10-byte READ(0x28) or WRITE(0x2A) cdb | |
795 | */ | |
796 | if( cmd->cmd_len == 10 ) { | |
797 | mbox->m_out.numsectors = | |
798 | (u32)cmd->cmnd[8] | | |
799 | ((u32)cmd->cmnd[7] << 8); | |
800 | mbox->m_out.lba = | |
801 | ((u32)cmd->cmnd[2] << 24) | | |
802 | ((u32)cmd->cmnd[3] << 16) | | |
803 | ((u32)cmd->cmnd[4] << 8) | | |
804 | (u32)cmd->cmnd[5]; | |
805 | ||
806 | #if MEGA_HAVE_STATS | |
807 | if (*cmd->cmnd == READ_10) { | |
808 | adapter->nreads[ldrv_num%0x80]++; | |
809 | adapter->nreadblocks[ldrv_num%0x80] += | |
810 | mbox->m_out.numsectors; | |
811 | } else { | |
812 | adapter->nwrites[ldrv_num%0x80]++; | |
813 | adapter->nwriteblocks[ldrv_num%0x80] += | |
814 | mbox->m_out.numsectors; | |
815 | } | |
816 | #endif | |
817 | } | |
818 | ||
819 | /* | |
820 | * 12-byte READ(0xA8) or WRITE(0xAA) cdb | |
821 | */ | |
822 | if( cmd->cmd_len == 12 ) { | |
823 | mbox->m_out.lba = | |
824 | ((u32)cmd->cmnd[2] << 24) | | |
825 | ((u32)cmd->cmnd[3] << 16) | | |
826 | ((u32)cmd->cmnd[4] << 8) | | |
827 | (u32)cmd->cmnd[5]; | |
828 | ||
829 | mbox->m_out.numsectors = | |
830 | ((u32)cmd->cmnd[6] << 24) | | |
831 | ((u32)cmd->cmnd[7] << 16) | | |
832 | ((u32)cmd->cmnd[8] << 8) | | |
833 | (u32)cmd->cmnd[9]; | |
834 | ||
835 | #if MEGA_HAVE_STATS | |
836 | if (*cmd->cmnd == READ_12) { | |
837 | adapter->nreads[ldrv_num%0x80]++; | |
838 | adapter->nreadblocks[ldrv_num%0x80] += | |
839 | mbox->m_out.numsectors; | |
840 | } else { | |
841 | adapter->nwrites[ldrv_num%0x80]++; | |
842 | adapter->nwriteblocks[ldrv_num%0x80] += | |
843 | mbox->m_out.numsectors; | |
844 | } | |
845 | #endif | |
846 | } | |
847 | ||
848 | /* | |
849 | * If it is a read command | |
850 | */ | |
851 | if( (*cmd->cmnd & 0x0F) == 0x08 ) { | |
852 | scb->dma_direction = PCI_DMA_FROMDEVICE; | |
853 | } | |
854 | else { | |
855 | scb->dma_direction = PCI_DMA_TODEVICE; | |
856 | } | |
857 | ||
858 | /* Calculate Scatter-Gather info */ | |
859 | mbox->m_out.numsgelements = mega_build_sglist(adapter, scb, | |
9d5d93e3 | 860 | (u32 *)&mbox->m_out.xferaddr, &seg); |
1da177e4 LT |
861 | |
862 | return scb; | |
863 | ||
864 | #if MEGA_HAVE_CLUSTERING | |
865 | case RESERVE: /* Fall through */ | |
866 | case RELEASE: | |
867 | ||
868 | /* | |
869 | * Do we support clustering and is the support enabled | |
870 | */ | |
871 | if( ! adapter->has_cluster ) { | |
872 | ||
873 | cmd->result = (DID_BAD_TARGET << 16); | |
874 | cmd->scsi_done(cmd); | |
875 | return NULL; | |
876 | } | |
877 | ||
878 | /* Allocate a SCB and initialize mailbox */ | |
879 | if(!(scb = mega_allocate_scb(adapter, cmd))) { | |
880 | *busy = 1; | |
881 | return NULL; | |
882 | } | |
883 | ||
884 | scb->raw_mbox[0] = MEGA_CLUSTER_CMD; | |
885 | scb->raw_mbox[2] = ( *cmd->cmnd == RESERVE ) ? | |
886 | MEGA_RESERVE_LD : MEGA_RELEASE_LD; | |
887 | ||
888 | scb->raw_mbox[3] = ldrv_num; | |
889 | ||
890 | scb->dma_direction = PCI_DMA_NONE; | |
891 | ||
892 | return scb; | |
893 | #endif | |
894 | ||
895 | default: | |
896 | cmd->result = (DID_BAD_TARGET << 16); | |
897 | cmd->scsi_done(cmd); | |
898 | return NULL; | |
899 | } | |
900 | } | |
901 | ||
902 | /* | |
903 | * Passthru drive commands | |
904 | */ | |
905 | else { | |
906 | /* Allocate a SCB and initialize passthru */ | |
907 | if(!(scb = mega_allocate_scb(adapter, cmd))) { | |
908 | *busy = 1; | |
909 | return NULL; | |
910 | } | |
911 | ||
912 | mbox = (mbox_t *)scb->raw_mbox; | |
913 | memset(mbox, 0, sizeof(scb->raw_mbox)); | |
914 | ||
915 | if( adapter->support_ext_cdb ) { | |
916 | ||
917 | epthru = mega_prepare_extpassthru(adapter, scb, cmd, | |
918 | channel, target); | |
919 | ||
920 | mbox->m_out.cmd = MEGA_MBOXCMD_EXTPTHRU; | |
921 | ||
922 | mbox->m_out.xferaddr = scb->epthru_dma_addr; | |
923 | ||
924 | } | |
925 | else { | |
926 | ||
927 | pthru = mega_prepare_passthru(adapter, scb, cmd, | |
928 | channel, target); | |
929 | ||
930 | /* Initialize mailbox */ | |
931 | if( adapter->has_64bit_addr ) { | |
932 | mbox->m_out.cmd = MEGA_MBOXCMD_PASSTHRU64; | |
933 | } | |
934 | else { | |
935 | mbox->m_out.cmd = MEGA_MBOXCMD_PASSTHRU; | |
936 | } | |
937 | ||
938 | mbox->m_out.xferaddr = scb->pthru_dma_addr; | |
939 | ||
940 | } | |
941 | return scb; | |
942 | } | |
943 | return NULL; | |
944 | } | |
945 | ||
946 | ||
947 | /** | |
948 | * mega_prepare_passthru() | |
949 | * @adapter - pointer to our soft state | |
950 | * @scb - our scsi control block | |
951 | * @cmd - scsi command from the mid-layer | |
952 | * @channel - actual channel on the controller | |
953 | * @target - actual id on the controller. | |
954 | * | |
955 | * prepare a command for the scsi physical devices. | |
956 | */ | |
957 | static mega_passthru * | |
958 | mega_prepare_passthru(adapter_t *adapter, scb_t *scb, Scsi_Cmnd *cmd, | |
959 | int channel, int target) | |
960 | { | |
961 | mega_passthru *pthru; | |
962 | ||
963 | pthru = scb->pthru; | |
964 | memset(pthru, 0, sizeof (mega_passthru)); | |
965 | ||
966 | /* 0=6sec/1=60sec/2=10min/3=3hrs */ | |
967 | pthru->timeout = 2; | |
968 | ||
969 | pthru->ars = 1; | |
970 | pthru->reqsenselen = 14; | |
971 | pthru->islogical = 0; | |
972 | ||
973 | pthru->channel = (adapter->flag & BOARD_40LD) ? 0 : channel; | |
974 | ||
975 | pthru->target = (adapter->flag & BOARD_40LD) ? | |
976 | (channel << 4) | target : target; | |
977 | ||
978 | pthru->cdblen = cmd->cmd_len; | |
979 | pthru->logdrv = cmd->device->lun; | |
980 | ||
981 | memcpy(pthru->cdb, cmd->cmnd, cmd->cmd_len); | |
982 | ||
983 | /* Not sure about the direction */ | |
984 | scb->dma_direction = PCI_DMA_BIDIRECTIONAL; | |
985 | ||
986 | /* Special Code for Handling READ_CAPA/ INQ using bounce buffers */ | |
987 | switch (cmd->cmnd[0]) { | |
988 | case INQUIRY: | |
989 | case READ_CAPACITY: | |
990 | if(!(adapter->flag & (1L << cmd->device->channel))) { | |
991 | ||
992 | printk(KERN_NOTICE | |
993 | "scsi%d: scanning scsi channel %d [P%d] ", | |
994 | adapter->host->host_no, | |
995 | cmd->device->channel, channel); | |
996 | printk("for physical devices.\n"); | |
997 | ||
998 | adapter->flag |= (1L << cmd->device->channel); | |
999 | } | |
1000 | /* Fall through */ | |
1001 | default: | |
1002 | pthru->numsgelements = mega_build_sglist(adapter, scb, | |
1003 | &pthru->dataxferaddr, &pthru->dataxferlen); | |
1004 | break; | |
1005 | } | |
1006 | return pthru; | |
1007 | } | |
1008 | ||
1009 | ||
1010 | /** | |
1011 | * mega_prepare_extpassthru() | |
1012 | * @adapter - pointer to our soft state | |
1013 | * @scb - our scsi control block | |
1014 | * @cmd - scsi command from the mid-layer | |
1015 | * @channel - actual channel on the controller | |
1016 | * @target - actual id on the controller. | |
1017 | * | |
1018 | * prepare a command for the scsi physical devices. This rountine prepares | |
1019 | * commands for devices which can take extended CDBs (>10 bytes) | |
1020 | */ | |
1021 | static mega_ext_passthru * | |
1022 | mega_prepare_extpassthru(adapter_t *adapter, scb_t *scb, Scsi_Cmnd *cmd, | |
1023 | int channel, int target) | |
1024 | { | |
1025 | mega_ext_passthru *epthru; | |
1026 | ||
1027 | epthru = scb->epthru; | |
1028 | memset(epthru, 0, sizeof(mega_ext_passthru)); | |
1029 | ||
1030 | /* 0=6sec/1=60sec/2=10min/3=3hrs */ | |
1031 | epthru->timeout = 2; | |
1032 | ||
1033 | epthru->ars = 1; | |
1034 | epthru->reqsenselen = 14; | |
1035 | epthru->islogical = 0; | |
1036 | ||
1037 | epthru->channel = (adapter->flag & BOARD_40LD) ? 0 : channel; | |
1038 | epthru->target = (adapter->flag & BOARD_40LD) ? | |
1039 | (channel << 4) | target : target; | |
1040 | ||
1041 | epthru->cdblen = cmd->cmd_len; | |
1042 | epthru->logdrv = cmd->device->lun; | |
1043 | ||
1044 | memcpy(epthru->cdb, cmd->cmnd, cmd->cmd_len); | |
1045 | ||
1046 | /* Not sure about the direction */ | |
1047 | scb->dma_direction = PCI_DMA_BIDIRECTIONAL; | |
1048 | ||
1049 | switch(cmd->cmnd[0]) { | |
1050 | case INQUIRY: | |
1051 | case READ_CAPACITY: | |
1052 | if(!(adapter->flag & (1L << cmd->device->channel))) { | |
1053 | ||
1054 | printk(KERN_NOTICE | |
1055 | "scsi%d: scanning scsi channel %d [P%d] ", | |
1056 | adapter->host->host_no, | |
1057 | cmd->device->channel, channel); | |
1058 | printk("for physical devices.\n"); | |
1059 | ||
1060 | adapter->flag |= (1L << cmd->device->channel); | |
1061 | } | |
1062 | /* Fall through */ | |
1063 | default: | |
1064 | epthru->numsgelements = mega_build_sglist(adapter, scb, | |
1065 | &epthru->dataxferaddr, &epthru->dataxferlen); | |
1066 | break; | |
1067 | } | |
1068 | ||
1069 | return epthru; | |
1070 | } | |
1071 | ||
1072 | static void | |
1073 | __mega_runpendq(adapter_t *adapter) | |
1074 | { | |
1075 | scb_t *scb; | |
1076 | struct list_head *pos, *next; | |
1077 | ||
1078 | /* Issue any pending commands to the card */ | |
1079 | list_for_each_safe(pos, next, &adapter->pending_list) { | |
1080 | ||
1081 | scb = list_entry(pos, scb_t, list); | |
1082 | ||
1083 | if( !(scb->state & SCB_ISSUED) ) { | |
1084 | ||
1085 | if( issue_scb(adapter, scb) != 0 ) | |
1086 | return; | |
1087 | } | |
1088 | } | |
1089 | ||
1090 | return; | |
1091 | } | |
1092 | ||
1093 | ||
1094 | /** | |
1095 | * issue_scb() | |
1096 | * @adapter - pointer to our soft state | |
1097 | * @scb - scsi control block | |
1098 | * | |
1099 | * Post a command to the card if the mailbox is available, otherwise return | |
1100 | * busy. We also take the scb from the pending list if the mailbox is | |
1101 | * available. | |
1102 | */ | |
1103 | static int | |
1104 | issue_scb(adapter_t *adapter, scb_t *scb) | |
1105 | { | |
1106 | volatile mbox64_t *mbox64 = adapter->mbox64; | |
1107 | volatile mbox_t *mbox = adapter->mbox; | |
1108 | unsigned int i = 0; | |
1109 | ||
1110 | if(unlikely(mbox->m_in.busy)) { | |
1111 | do { | |
1112 | udelay(1); | |
1113 | i++; | |
1114 | } while( mbox->m_in.busy && (i < max_mbox_busy_wait) ); | |
1115 | ||
1116 | if(mbox->m_in.busy) return -1; | |
1117 | } | |
1118 | ||
1119 | /* Copy mailbox data into host structure */ | |
1120 | memcpy((char *)&mbox->m_out, (char *)scb->raw_mbox, | |
1121 | sizeof(struct mbox_out)); | |
1122 | ||
1123 | mbox->m_out.cmdid = scb->idx; /* Set cmdid */ | |
1124 | mbox->m_in.busy = 1; /* Set busy */ | |
1125 | ||
1126 | ||
1127 | /* | |
1128 | * Increment the pending queue counter | |
1129 | */ | |
1130 | atomic_inc(&adapter->pend_cmds); | |
1131 | ||
1132 | switch (mbox->m_out.cmd) { | |
1133 | case MEGA_MBOXCMD_LREAD64: | |
1134 | case MEGA_MBOXCMD_LWRITE64: | |
1135 | case MEGA_MBOXCMD_PASSTHRU64: | |
1136 | case MEGA_MBOXCMD_EXTPTHRU: | |
1137 | mbox64->xfer_segment_lo = mbox->m_out.xferaddr; | |
1138 | mbox64->xfer_segment_hi = 0; | |
1139 | mbox->m_out.xferaddr = 0xFFFFFFFF; | |
1140 | break; | |
1141 | default: | |
1142 | mbox64->xfer_segment_lo = 0; | |
1143 | mbox64->xfer_segment_hi = 0; | |
1144 | } | |
1145 | ||
1146 | /* | |
1147 | * post the command | |
1148 | */ | |
1149 | scb->state |= SCB_ISSUED; | |
1150 | ||
1151 | if( likely(adapter->flag & BOARD_MEMMAP) ) { | |
1152 | mbox->m_in.poll = 0; | |
1153 | mbox->m_in.ack = 0; | |
1154 | WRINDOOR(adapter, adapter->mbox_dma | 0x1); | |
1155 | } | |
1156 | else { | |
1157 | irq_enable(adapter); | |
1158 | issue_command(adapter); | |
1159 | } | |
1160 | ||
1161 | return 0; | |
1162 | } | |
1163 | ||
1164 | /* | |
1165 | * Wait until the controller's mailbox is available | |
1166 | */ | |
1167 | static inline int | |
1168 | mega_busywait_mbox (adapter_t *adapter) | |
1169 | { | |
1170 | if (adapter->mbox->m_in.busy) | |
1171 | return __mega_busywait_mbox(adapter); | |
1172 | return 0; | |
1173 | } | |
1174 | ||
1175 | /** | |
1176 | * issue_scb_block() | |
1177 | * @adapter - pointer to our soft state | |
1178 | * @raw_mbox - the mailbox | |
1179 | * | |
1180 | * Issue a scb in synchronous and non-interrupt mode | |
1181 | */ | |
1182 | static int | |
1183 | issue_scb_block(adapter_t *adapter, u_char *raw_mbox) | |
1184 | { | |
1185 | volatile mbox64_t *mbox64 = adapter->mbox64; | |
1186 | volatile mbox_t *mbox = adapter->mbox; | |
1187 | u8 byte; | |
1188 | ||
1189 | /* Wait until mailbox is free */ | |
1190 | if(mega_busywait_mbox (adapter)) | |
1191 | goto bug_blocked_mailbox; | |
1192 | ||
1193 | /* Copy mailbox data into host structure */ | |
1194 | memcpy((char *) mbox, raw_mbox, sizeof(struct mbox_out)); | |
1195 | mbox->m_out.cmdid = 0xFE; | |
1196 | mbox->m_in.busy = 1; | |
1197 | ||
1198 | switch (raw_mbox[0]) { | |
1199 | case MEGA_MBOXCMD_LREAD64: | |
1200 | case MEGA_MBOXCMD_LWRITE64: | |
1201 | case MEGA_MBOXCMD_PASSTHRU64: | |
1202 | case MEGA_MBOXCMD_EXTPTHRU: | |
1203 | mbox64->xfer_segment_lo = mbox->m_out.xferaddr; | |
1204 | mbox64->xfer_segment_hi = 0; | |
1205 | mbox->m_out.xferaddr = 0xFFFFFFFF; | |
1206 | break; | |
1207 | default: | |
1208 | mbox64->xfer_segment_lo = 0; | |
1209 | mbox64->xfer_segment_hi = 0; | |
1210 | } | |
1211 | ||
1212 | if( likely(adapter->flag & BOARD_MEMMAP) ) { | |
1213 | mbox->m_in.poll = 0; | |
1214 | mbox->m_in.ack = 0; | |
1215 | mbox->m_in.numstatus = 0xFF; | |
1216 | mbox->m_in.status = 0xFF; | |
1217 | WRINDOOR(adapter, adapter->mbox_dma | 0x1); | |
1218 | ||
1219 | while((volatile u8)mbox->m_in.numstatus == 0xFF) | |
1220 | cpu_relax(); | |
1221 | ||
1222 | mbox->m_in.numstatus = 0xFF; | |
1223 | ||
1224 | while( (volatile u8)mbox->m_in.poll != 0x77 ) | |
1225 | cpu_relax(); | |
1226 | ||
1227 | mbox->m_in.poll = 0; | |
1228 | mbox->m_in.ack = 0x77; | |
1229 | ||
1230 | WRINDOOR(adapter, adapter->mbox_dma | 0x2); | |
1231 | ||
1232 | while(RDINDOOR(adapter) & 0x2) | |
1233 | cpu_relax(); | |
1234 | } | |
1235 | else { | |
1236 | irq_disable(adapter); | |
1237 | issue_command(adapter); | |
1238 | ||
1239 | while (!((byte = irq_state(adapter)) & INTR_VALID)) | |
1240 | cpu_relax(); | |
1241 | ||
1242 | set_irq_state(adapter, byte); | |
1243 | irq_enable(adapter); | |
1244 | irq_ack(adapter); | |
1245 | } | |
1246 | ||
1247 | return mbox->m_in.status; | |
1248 | ||
1249 | bug_blocked_mailbox: | |
1250 | printk(KERN_WARNING "megaraid: Blocked mailbox......!!\n"); | |
1251 | udelay (1000); | |
1252 | return -1; | |
1253 | } | |
1254 | ||
1255 | ||
1256 | /** | |
1257 | * megaraid_isr_iomapped() | |
1258 | * @irq - irq | |
1259 | * @devp - pointer to our soft state | |
1da177e4 LT |
1260 | * |
1261 | * Interrupt service routine for io-mapped controllers. | |
1262 | * Find out if our device is interrupting. If yes, acknowledge the interrupt | |
1263 | * and service the completed commands. | |
1264 | */ | |
1265 | static irqreturn_t | |
7d12e780 | 1266 | megaraid_isr_iomapped(int irq, void *devp) |
1da177e4 LT |
1267 | { |
1268 | adapter_t *adapter = devp; | |
1269 | unsigned long flags; | |
1270 | u8 status; | |
1271 | u8 nstatus; | |
1272 | u8 completed[MAX_FIRMWARE_STATUS]; | |
1273 | u8 byte; | |
1274 | int handled = 0; | |
1275 | ||
1276 | ||
1277 | /* | |
1278 | * loop till F/W has more commands for us to complete. | |
1279 | */ | |
1280 | spin_lock_irqsave(&adapter->lock, flags); | |
1281 | ||
1282 | do { | |
1283 | /* Check if a valid interrupt is pending */ | |
1284 | byte = irq_state(adapter); | |
1285 | if( (byte & VALID_INTR_BYTE) == 0 ) { | |
1286 | /* | |
1287 | * No more pending commands | |
1288 | */ | |
1289 | goto out_unlock; | |
1290 | } | |
1291 | set_irq_state(adapter, byte); | |
1292 | ||
1293 | while((nstatus = (volatile u8)adapter->mbox->m_in.numstatus) | |
1294 | == 0xFF) | |
1295 | cpu_relax(); | |
1296 | adapter->mbox->m_in.numstatus = 0xFF; | |
1297 | ||
1298 | status = adapter->mbox->m_in.status; | |
1299 | ||
1300 | /* | |
1301 | * decrement the pending queue counter | |
1302 | */ | |
1303 | atomic_sub(nstatus, &adapter->pend_cmds); | |
1304 | ||
1305 | memcpy(completed, (void *)adapter->mbox->m_in.completed, | |
1306 | nstatus); | |
1307 | ||
1308 | /* Acknowledge interrupt */ | |
1309 | irq_ack(adapter); | |
1310 | ||
1311 | mega_cmd_done(adapter, completed, nstatus, status); | |
1312 | ||
1313 | mega_rundoneq(adapter); | |
1314 | ||
1315 | handled = 1; | |
1316 | ||
1317 | /* Loop through any pending requests */ | |
1318 | if(atomic_read(&adapter->quiescent) == 0) { | |
1319 | mega_runpendq(adapter); | |
1320 | } | |
1321 | ||
1322 | } while(1); | |
1323 | ||
1324 | out_unlock: | |
1325 | ||
1326 | spin_unlock_irqrestore(&adapter->lock, flags); | |
1327 | ||
1328 | return IRQ_RETVAL(handled); | |
1329 | } | |
1330 | ||
1331 | ||
1332 | /** | |
1333 | * megaraid_isr_memmapped() | |
1334 | * @irq - irq | |
1335 | * @devp - pointer to our soft state | |
1da177e4 LT |
1336 | * |
1337 | * Interrupt service routine for memory-mapped controllers. | |
1338 | * Find out if our device is interrupting. If yes, acknowledge the interrupt | |
1339 | * and service the completed commands. | |
1340 | */ | |
1341 | static irqreturn_t | |
7d12e780 | 1342 | megaraid_isr_memmapped(int irq, void *devp) |
1da177e4 LT |
1343 | { |
1344 | adapter_t *adapter = devp; | |
1345 | unsigned long flags; | |
1346 | u8 status; | |
1347 | u32 dword = 0; | |
1348 | u8 nstatus; | |
1349 | u8 completed[MAX_FIRMWARE_STATUS]; | |
1350 | int handled = 0; | |
1351 | ||
1352 | ||
1353 | /* | |
1354 | * loop till F/W has more commands for us to complete. | |
1355 | */ | |
1356 | spin_lock_irqsave(&adapter->lock, flags); | |
1357 | ||
1358 | do { | |
1359 | /* Check if a valid interrupt is pending */ | |
1360 | dword = RDOUTDOOR(adapter); | |
1361 | if(dword != 0x10001234) { | |
1362 | /* | |
1363 | * No more pending commands | |
1364 | */ | |
1365 | goto out_unlock; | |
1366 | } | |
1367 | WROUTDOOR(adapter, 0x10001234); | |
1368 | ||
1369 | while((nstatus = (volatile u8)adapter->mbox->m_in.numstatus) | |
1370 | == 0xFF) { | |
1371 | cpu_relax(); | |
1372 | } | |
1373 | adapter->mbox->m_in.numstatus = 0xFF; | |
1374 | ||
1375 | status = adapter->mbox->m_in.status; | |
1376 | ||
1377 | /* | |
1378 | * decrement the pending queue counter | |
1379 | */ | |
1380 | atomic_sub(nstatus, &adapter->pend_cmds); | |
1381 | ||
1382 | memcpy(completed, (void *)adapter->mbox->m_in.completed, | |
1383 | nstatus); | |
1384 | ||
1385 | /* Acknowledge interrupt */ | |
1386 | WRINDOOR(adapter, 0x2); | |
1387 | ||
1388 | handled = 1; | |
1389 | ||
00769ec4 JG |
1390 | while( RDINDOOR(adapter) & 0x02 ) |
1391 | cpu_relax(); | |
1da177e4 LT |
1392 | |
1393 | mega_cmd_done(adapter, completed, nstatus, status); | |
1394 | ||
1395 | mega_rundoneq(adapter); | |
1396 | ||
1397 | /* Loop through any pending requests */ | |
1398 | if(atomic_read(&adapter->quiescent) == 0) { | |
1399 | mega_runpendq(adapter); | |
1400 | } | |
1401 | ||
1402 | } while(1); | |
1403 | ||
1404 | out_unlock: | |
1405 | ||
1406 | spin_unlock_irqrestore(&adapter->lock, flags); | |
1407 | ||
1408 | return IRQ_RETVAL(handled); | |
1409 | } | |
1410 | /** | |
1411 | * mega_cmd_done() | |
1412 | * @adapter - pointer to our soft state | |
1413 | * @completed - array of ids of completed commands | |
1414 | * @nstatus - number of completed commands | |
1415 | * @status - status of the last command completed | |
1416 | * | |
8e572bab | 1417 | * Complete the commands and call the scsi mid-layer callback hooks. |
1da177e4 LT |
1418 | */ |
1419 | static void | |
1420 | mega_cmd_done(adapter_t *adapter, u8 completed[], int nstatus, int status) | |
1421 | { | |
1422 | mega_ext_passthru *epthru = NULL; | |
1423 | struct scatterlist *sgl; | |
1424 | Scsi_Cmnd *cmd = NULL; | |
1425 | mega_passthru *pthru = NULL; | |
1426 | mbox_t *mbox = NULL; | |
1427 | u8 c; | |
1428 | scb_t *scb; | |
1429 | int islogical; | |
1430 | int cmdid; | |
1431 | int i; | |
1432 | ||
1433 | /* | |
1434 | * for all the commands completed, call the mid-layer callback routine | |
1435 | * and free the scb. | |
1436 | */ | |
1437 | for( i = 0; i < nstatus; i++ ) { | |
1438 | ||
1439 | cmdid = completed[i]; | |
1440 | ||
1441 | if( cmdid == CMDID_INT_CMDS ) { /* internal command */ | |
1442 | scb = &adapter->int_scb; | |
1443 | cmd = scb->cmd; | |
1444 | mbox = (mbox_t *)scb->raw_mbox; | |
1445 | ||
1446 | /* | |
1447 | * Internal command interface do not fire the extended | |
1448 | * passthru or 64-bit passthru | |
1449 | */ | |
1450 | pthru = scb->pthru; | |
1451 | ||
1452 | } | |
1453 | else { | |
1454 | scb = &adapter->scb_list[cmdid]; | |
1455 | ||
1456 | /* | |
1457 | * Make sure f/w has completed a valid command | |
1458 | */ | |
1459 | if( !(scb->state & SCB_ISSUED) || scb->cmd == NULL ) { | |
1460 | printk(KERN_CRIT | |
1461 | "megaraid: invalid command "); | |
1462 | printk("Id %d, scb->state:%x, scsi cmd:%p\n", | |
1463 | cmdid, scb->state, scb->cmd); | |
1464 | ||
1465 | continue; | |
1466 | } | |
1467 | ||
1468 | /* | |
1469 | * Was a abort issued for this command | |
1470 | */ | |
1471 | if( scb->state & SCB_ABORT ) { | |
1472 | ||
1473 | printk(KERN_WARNING | |
5cd049a5 CH |
1474 | "megaraid: aborted cmd [%x] complete.\n", |
1475 | scb->idx); | |
1da177e4 LT |
1476 | |
1477 | scb->cmd->result = (DID_ABORT << 16); | |
1478 | ||
1479 | list_add_tail(SCSI_LIST(scb->cmd), | |
1480 | &adapter->completed_list); | |
1481 | ||
1482 | mega_free_scb(adapter, scb); | |
1483 | ||
1484 | continue; | |
1485 | } | |
1486 | ||
1487 | /* | |
1488 | * Was a reset issued for this command | |
1489 | */ | |
1490 | if( scb->state & SCB_RESET ) { | |
1491 | ||
1492 | printk(KERN_WARNING | |
5cd049a5 CH |
1493 | "megaraid: reset cmd [%x] complete.\n", |
1494 | scb->idx); | |
1da177e4 LT |
1495 | |
1496 | scb->cmd->result = (DID_RESET << 16); | |
1497 | ||
1498 | list_add_tail(SCSI_LIST(scb->cmd), | |
1499 | &adapter->completed_list); | |
1500 | ||
1501 | mega_free_scb (adapter, scb); | |
1502 | ||
1503 | continue; | |
1504 | } | |
1505 | ||
1506 | cmd = scb->cmd; | |
1507 | pthru = scb->pthru; | |
1508 | epthru = scb->epthru; | |
1509 | mbox = (mbox_t *)scb->raw_mbox; | |
1510 | ||
1511 | #if MEGA_HAVE_STATS | |
1512 | { | |
1513 | ||
1514 | int logdrv = mbox->m_out.logdrv; | |
1515 | ||
1516 | islogical = adapter->logdrv_chan[cmd->channel]; | |
1517 | /* | |
1518 | * Maintain an error counter for the logical drive. | |
1519 | * Some application like SNMP agent need such | |
1520 | * statistics | |
1521 | */ | |
1522 | if( status && islogical && (cmd->cmnd[0] == READ_6 || | |
1523 | cmd->cmnd[0] == READ_10 || | |
1524 | cmd->cmnd[0] == READ_12)) { | |
1525 | /* | |
1526 | * Logical drive number increases by 0x80 when | |
1527 | * a logical drive is deleted | |
1528 | */ | |
1529 | adapter->rd_errors[logdrv%0x80]++; | |
1530 | } | |
1531 | ||
1532 | if( status && islogical && (cmd->cmnd[0] == WRITE_6 || | |
1533 | cmd->cmnd[0] == WRITE_10 || | |
1534 | cmd->cmnd[0] == WRITE_12)) { | |
1535 | /* | |
1536 | * Logical drive number increases by 0x80 when | |
1537 | * a logical drive is deleted | |
1538 | */ | |
1539 | adapter->wr_errors[logdrv%0x80]++; | |
1540 | } | |
1541 | ||
1542 | } | |
1543 | #endif | |
1544 | } | |
1545 | ||
1546 | /* | |
1547 | * Do not return the presence of hard disk on the channel so, | |
1548 | * inquiry sent, and returned data==hard disk or removable | |
1549 | * hard disk and not logical, request should return failure! - | |
1550 | * PJ | |
1551 | */ | |
1552 | islogical = adapter->logdrv_chan[cmd->device->channel]; | |
1553 | if( cmd->cmnd[0] == INQUIRY && !islogical ) { | |
1554 | ||
3f6270ef | 1555 | sgl = scsi_sglist(cmd); |
45711f1a JA |
1556 | if( sg_page(sgl) ) { |
1557 | c = *(unsigned char *) sg_virt(&sgl[0]); | |
3f6270ef FT |
1558 | } else { |
1559 | printk(KERN_WARNING | |
1560 | "megaraid: invalid sg.\n"); | |
1561 | c = 0; | |
1da177e4 LT |
1562 | } |
1563 | ||
1564 | if(IS_RAID_CH(adapter, cmd->device->channel) && | |
1565 | ((c & 0x1F ) == TYPE_DISK)) { | |
1566 | status = 0xF0; | |
1567 | } | |
1568 | } | |
1569 | ||
1570 | /* clear result; otherwise, success returns corrupt value */ | |
1571 | cmd->result = 0; | |
1572 | ||
1573 | /* Convert MegaRAID status to Linux error code */ | |
1574 | switch (status) { | |
1575 | case 0x00: /* SUCCESS , i.e. SCSI_STATUS_GOOD */ | |
1576 | cmd->result |= (DID_OK << 16); | |
1577 | break; | |
1578 | ||
1579 | case 0x02: /* ERROR_ABORTED, i.e. | |
1580 | SCSI_STATUS_CHECK_CONDITION */ | |
1581 | ||
1582 | /* set sense_buffer and result fields */ | |
1583 | if( mbox->m_out.cmd == MEGA_MBOXCMD_PASSTHRU || | |
1584 | mbox->m_out.cmd == MEGA_MBOXCMD_PASSTHRU64 ) { | |
1585 | ||
1586 | memcpy(cmd->sense_buffer, pthru->reqsensearea, | |
1587 | 14); | |
1588 | ||
1589 | cmd->result = (DRIVER_SENSE << 24) | | |
1590 | (DID_OK << 16) | | |
1591 | (CHECK_CONDITION << 1); | |
1592 | } | |
1593 | else { | |
1594 | if (mbox->m_out.cmd == MEGA_MBOXCMD_EXTPTHRU) { | |
1595 | ||
1596 | memcpy(cmd->sense_buffer, | |
1597 | epthru->reqsensearea, 14); | |
1598 | ||
1599 | cmd->result = (DRIVER_SENSE << 24) | | |
1600 | (DID_OK << 16) | | |
1601 | (CHECK_CONDITION << 1); | |
1602 | } else { | |
1603 | cmd->sense_buffer[0] = 0x70; | |
1604 | cmd->sense_buffer[2] = ABORTED_COMMAND; | |
1605 | cmd->result |= (CHECK_CONDITION << 1); | |
1606 | } | |
1607 | } | |
1608 | break; | |
1609 | ||
1610 | case 0x08: /* ERR_DEST_DRIVE_FAILED, i.e. | |
1611 | SCSI_STATUS_BUSY */ | |
1612 | cmd->result |= (DID_BUS_BUSY << 16) | status; | |
1613 | break; | |
1614 | ||
1615 | default: | |
1616 | #if MEGA_HAVE_CLUSTERING | |
1617 | /* | |
1618 | * If TEST_UNIT_READY fails, we know | |
1619 | * MEGA_RESERVATION_STATUS failed | |
1620 | */ | |
1621 | if( cmd->cmnd[0] == TEST_UNIT_READY ) { | |
1622 | cmd->result |= (DID_ERROR << 16) | | |
1623 | (RESERVATION_CONFLICT << 1); | |
1624 | } | |
1625 | else | |
1626 | /* | |
1627 | * Error code returned is 1 if Reserve or Release | |
1628 | * failed or the input parameter is invalid | |
1629 | */ | |
1630 | if( status == 1 && | |
1631 | (cmd->cmnd[0] == RESERVE || | |
1632 | cmd->cmnd[0] == RELEASE) ) { | |
1633 | ||
1634 | cmd->result |= (DID_ERROR << 16) | | |
1635 | (RESERVATION_CONFLICT << 1); | |
1636 | } | |
1637 | else | |
1638 | #endif | |
1639 | cmd->result |= (DID_BAD_TARGET << 16)|status; | |
1640 | } | |
1641 | ||
1642 | /* | |
1643 | * Only free SCBs for the commands coming down from the | |
1644 | * mid-layer, not for which were issued internally | |
1645 | * | |
1646 | * For internal command, restore the status returned by the | |
1647 | * firmware so that user can interpret it. | |
1648 | */ | |
1649 | if( cmdid == CMDID_INT_CMDS ) { /* internal command */ | |
1650 | cmd->result = status; | |
1651 | ||
1652 | /* | |
1653 | * Remove the internal command from the pending list | |
1654 | */ | |
1655 | list_del_init(&scb->list); | |
1656 | scb->state = SCB_FREE; | |
1657 | } | |
1658 | else { | |
1659 | mega_free_scb(adapter, scb); | |
1660 | } | |
1661 | ||
1662 | /* Add Scsi_Command to end of completed queue */ | |
1663 | list_add_tail(SCSI_LIST(cmd), &adapter->completed_list); | |
1664 | } | |
1665 | } | |
1666 | ||
1667 | ||
1668 | /* | |
1669 | * mega_runpendq() | |
1670 | * | |
1671 | * Run through the list of completed requests and finish it | |
1672 | */ | |
1673 | static void | |
1674 | mega_rundoneq (adapter_t *adapter) | |
1675 | { | |
1676 | Scsi_Cmnd *cmd; | |
1677 | struct list_head *pos; | |
1678 | ||
1679 | list_for_each(pos, &adapter->completed_list) { | |
1680 | ||
0a04137e | 1681 | struct scsi_pointer* spos = (struct scsi_pointer *)pos; |
1da177e4 LT |
1682 | |
1683 | cmd = list_entry(spos, Scsi_Cmnd, SCp); | |
1684 | cmd->scsi_done(cmd); | |
1685 | } | |
1686 | ||
1687 | INIT_LIST_HEAD(&adapter->completed_list); | |
1688 | } | |
1689 | ||
1690 | ||
1691 | /* | |
1692 | * Free a SCB structure | |
1693 | * Note: We assume the scsi commands associated with this scb is not free yet. | |
1694 | */ | |
1695 | static void | |
1696 | mega_free_scb(adapter_t *adapter, scb_t *scb) | |
1697 | { | |
1698 | switch( scb->dma_type ) { | |
1699 | ||
1700 | case MEGA_DMA_TYPE_NONE: | |
1701 | break; | |
1702 | ||
1da177e4 | 1703 | case MEGA_SGLIST: |
3f6270ef | 1704 | scsi_dma_unmap(scb->cmd); |
1da177e4 | 1705 | break; |
1da177e4 LT |
1706 | default: |
1707 | break; | |
1708 | } | |
1709 | ||
1710 | /* | |
1711 | * Remove from the pending list | |
1712 | */ | |
1713 | list_del_init(&scb->list); | |
1714 | ||
1715 | /* Link the scb back into free list */ | |
1716 | scb->state = SCB_FREE; | |
1717 | scb->cmd = NULL; | |
1718 | ||
1719 | list_add(&scb->list, &adapter->free_list); | |
1720 | } | |
1721 | ||
1722 | ||
1723 | static int | |
1724 | __mega_busywait_mbox (adapter_t *adapter) | |
1725 | { | |
1726 | volatile mbox_t *mbox = adapter->mbox; | |
1727 | long counter; | |
1728 | ||
1729 | for (counter = 0; counter < 10000; counter++) { | |
1730 | if (!mbox->m_in.busy) | |
1731 | return 0; | |
e1fa0cea AL |
1732 | udelay(100); |
1733 | cond_resched(); | |
1da177e4 LT |
1734 | } |
1735 | return -1; /* give up after 1 second */ | |
1736 | } | |
1737 | ||
1738 | /* | |
1739 | * Copies data to SGLIST | |
1740 | * Note: For 64 bit cards, we need a minimum of one SG element for read/write | |
1741 | */ | |
1742 | static int | |
1743 | mega_build_sglist(adapter_t *adapter, scb_t *scb, u32 *buf, u32 *len) | |
1744 | { | |
3f6270ef | 1745 | struct scatterlist *sg; |
1da177e4 LT |
1746 | Scsi_Cmnd *cmd; |
1747 | int sgcnt; | |
1748 | int idx; | |
1749 | ||
1750 | cmd = scb->cmd; | |
1751 | ||
1da177e4 LT |
1752 | /* |
1753 | * Copy Scatter-Gather list info into controller structure. | |
1754 | * | |
1755 | * The number of sg elements returned must not exceed our limit | |
1756 | */ | |
3f6270ef | 1757 | sgcnt = scsi_dma_map(cmd); |
1da177e4 LT |
1758 | |
1759 | scb->dma_type = MEGA_SGLIST; | |
1760 | ||
3f6270ef | 1761 | BUG_ON(sgcnt > adapter->sglen || sgcnt < 0); |
1da177e4 | 1762 | |
51c928c3 JB |
1763 | *len = 0; |
1764 | ||
d5e89385 FT |
1765 | if (scsi_sg_count(cmd) == 1 && !adapter->has_64bit_addr) { |
1766 | sg = scsi_sglist(cmd); | |
1767 | scb->dma_h_bulkdata = sg_dma_address(sg); | |
1768 | *buf = (u32)scb->dma_h_bulkdata; | |
1769 | *len = sg_dma_len(sg); | |
1770 | return 0; | |
1771 | } | |
1772 | ||
3f6270ef FT |
1773 | scsi_for_each_sg(cmd, sg, sgcnt, idx) { |
1774 | if (adapter->has_64bit_addr) { | |
1775 | scb->sgl64[idx].address = sg_dma_address(sg); | |
1776 | *len += scb->sgl64[idx].length = sg_dma_len(sg); | |
1777 | } else { | |
1778 | scb->sgl[idx].address = sg_dma_address(sg); | |
1779 | *len += scb->sgl[idx].length = sg_dma_len(sg); | |
1da177e4 LT |
1780 | } |
1781 | } | |
1782 | ||
1783 | /* Reset pointer and length fields */ | |
1784 | *buf = scb->sgl_dma_addr; | |
1785 | ||
1da177e4 LT |
1786 | /* Return count of SG requests */ |
1787 | return sgcnt; | |
1788 | } | |
1789 | ||
1790 | ||
1791 | /* | |
1792 | * mega_8_to_40ld() | |
1793 | * | |
1794 | * takes all info in AdapterInquiry structure and puts it into ProductInfo and | |
1795 | * Enquiry3 structures for later use | |
1796 | */ | |
1797 | static void | |
1798 | mega_8_to_40ld(mraid_inquiry *inquiry, mega_inquiry3 *enquiry3, | |
1799 | mega_product_info *product_info) | |
1800 | { | |
1801 | int i; | |
1802 | ||
1803 | product_info->max_commands = inquiry->adapter_info.max_commands; | |
1804 | enquiry3->rebuild_rate = inquiry->adapter_info.rebuild_rate; | |
1805 | product_info->nchannels = inquiry->adapter_info.nchannels; | |
1806 | ||
1807 | for (i = 0; i < 4; i++) { | |
1808 | product_info->fw_version[i] = | |
1809 | inquiry->adapter_info.fw_version[i]; | |
1810 | ||
1811 | product_info->bios_version[i] = | |
1812 | inquiry->adapter_info.bios_version[i]; | |
1813 | } | |
1814 | enquiry3->cache_flush_interval = | |
1815 | inquiry->adapter_info.cache_flush_interval; | |
1816 | ||
1817 | product_info->dram_size = inquiry->adapter_info.dram_size; | |
1818 | ||
1819 | enquiry3->num_ldrv = inquiry->logdrv_info.num_ldrv; | |
1820 | ||
1821 | for (i = 0; i < MAX_LOGICAL_DRIVES_8LD; i++) { | |
1822 | enquiry3->ldrv_size[i] = inquiry->logdrv_info.ldrv_size[i]; | |
1823 | enquiry3->ldrv_prop[i] = inquiry->logdrv_info.ldrv_prop[i]; | |
1824 | enquiry3->ldrv_state[i] = inquiry->logdrv_info.ldrv_state[i]; | |
1825 | } | |
1826 | ||
1827 | for (i = 0; i < (MAX_PHYSICAL_DRIVES); i++) | |
1828 | enquiry3->pdrv_state[i] = inquiry->pdrv_info.pdrv_state[i]; | |
1829 | } | |
1830 | ||
1831 | static inline void | |
1832 | mega_free_sgl(adapter_t *adapter) | |
1833 | { | |
1834 | scb_t *scb; | |
1835 | int i; | |
1836 | ||
1837 | for(i = 0; i < adapter->max_cmds; i++) { | |
1838 | ||
1839 | scb = &adapter->scb_list[i]; | |
1840 | ||
1841 | if( scb->sgl64 ) { | |
1842 | pci_free_consistent(adapter->dev, | |
1843 | sizeof(mega_sgl64) * adapter->sglen, | |
1844 | scb->sgl64, | |
1845 | scb->sgl_dma_addr); | |
1846 | ||
1847 | scb->sgl64 = NULL; | |
1848 | } | |
1849 | ||
1850 | if( scb->pthru ) { | |
1851 | pci_free_consistent(adapter->dev, sizeof(mega_passthru), | |
1852 | scb->pthru, scb->pthru_dma_addr); | |
1853 | ||
1854 | scb->pthru = NULL; | |
1855 | } | |
1856 | ||
1857 | if( scb->epthru ) { | |
1858 | pci_free_consistent(adapter->dev, | |
1859 | sizeof(mega_ext_passthru), | |
1860 | scb->epthru, scb->epthru_dma_addr); | |
1861 | ||
1862 | scb->epthru = NULL; | |
1863 | } | |
1864 | ||
1865 | } | |
1866 | } | |
1867 | ||
1868 | ||
1869 | /* | |
1870 | * Get information about the card/driver | |
1871 | */ | |
1872 | const char * | |
1873 | megaraid_info(struct Scsi_Host *host) | |
1874 | { | |
1875 | static char buffer[512]; | |
1876 | adapter_t *adapter; | |
1877 | ||
1878 | adapter = (adapter_t *)host->hostdata; | |
1879 | ||
1880 | sprintf (buffer, | |
1881 | "LSI Logic MegaRAID %s %d commands %d targs %d chans %d luns", | |
1882 | adapter->fw_version, adapter->product_info.max_commands, | |
1883 | adapter->host->max_id, adapter->host->max_channel, | |
1884 | adapter->host->max_lun); | |
1885 | return buffer; | |
1886 | } | |
1887 | ||
1888 | /* | |
1889 | * Abort a previous SCSI request. Only commands on the pending list can be | |
1890 | * aborted. All the commands issued to the F/W must complete. | |
1891 | */ | |
1892 | static int | |
1893 | megaraid_abort(Scsi_Cmnd *cmd) | |
1894 | { | |
1895 | adapter_t *adapter; | |
1896 | int rval; | |
1897 | ||
1898 | adapter = (adapter_t *)cmd->device->host->hostdata; | |
1899 | ||
1900 | rval = megaraid_abort_and_reset(adapter, cmd, SCB_ABORT); | |
1901 | ||
1902 | /* | |
1903 | * This is required here to complete any completed requests | |
1904 | * to be communicated over to the mid layer. | |
1905 | */ | |
1906 | mega_rundoneq(adapter); | |
1907 | ||
1908 | return rval; | |
1909 | } | |
1910 | ||
1911 | ||
1912 | static int | |
fa4c4966 | 1913 | megaraid_reset(struct scsi_cmnd *cmd) |
1da177e4 LT |
1914 | { |
1915 | adapter_t *adapter; | |
1916 | megacmd_t mc; | |
1917 | int rval; | |
1918 | ||
1919 | adapter = (adapter_t *)cmd->device->host->hostdata; | |
1920 | ||
1921 | #if MEGA_HAVE_CLUSTERING | |
1922 | mc.cmd = MEGA_CLUSTER_CMD; | |
1923 | mc.opcode = MEGA_RESET_RESERVATIONS; | |
1924 | ||
cb0258a2 | 1925 | if( mega_internal_command(adapter, &mc, NULL) != 0 ) { |
1da177e4 LT |
1926 | printk(KERN_WARNING |
1927 | "megaraid: reservation reset failed.\n"); | |
1928 | } | |
1929 | else { | |
1930 | printk(KERN_INFO "megaraid: reservation reset.\n"); | |
1931 | } | |
1da177e4 LT |
1932 | #endif |
1933 | ||
fa4c4966 JB |
1934 | spin_lock_irq(&adapter->lock); |
1935 | ||
1da177e4 LT |
1936 | rval = megaraid_abort_and_reset(adapter, cmd, SCB_RESET); |
1937 | ||
1938 | /* | |
1939 | * This is required here to complete any completed requests | |
1940 | * to be communicated over to the mid layer. | |
1941 | */ | |
1942 | mega_rundoneq(adapter); | |
94d0e7b8 JG |
1943 | spin_unlock_irq(&adapter->lock); |
1944 | ||
fa4c4966 | 1945 | return rval; |
94d0e7b8 | 1946 | } |
1da177e4 | 1947 | |
1da177e4 LT |
1948 | /** |
1949 | * megaraid_abort_and_reset() | |
1950 | * @adapter - megaraid soft state | |
1951 | * @cmd - scsi command to be aborted or reset | |
1952 | * @aor - abort or reset flag | |
1953 | * | |
1954 | * Try to locate the scsi command in the pending queue. If found and is not | |
1955 | * issued to the controller, abort/reset it. Otherwise return failure | |
1956 | */ | |
1957 | static int | |
1958 | megaraid_abort_and_reset(adapter_t *adapter, Scsi_Cmnd *cmd, int aor) | |
1959 | { | |
1960 | struct list_head *pos, *next; | |
1961 | scb_t *scb; | |
1962 | ||
5cd049a5 CH |
1963 | printk(KERN_WARNING "megaraid: %s cmd=%x <c=%d t=%d l=%d>\n", |
1964 | (aor == SCB_ABORT)? "ABORTING":"RESET", | |
1da177e4 LT |
1965 | cmd->cmnd[0], cmd->device->channel, |
1966 | cmd->device->id, cmd->device->lun); | |
1967 | ||
1968 | if(list_empty(&adapter->pending_list)) | |
1969 | return FALSE; | |
1970 | ||
1971 | list_for_each_safe(pos, next, &adapter->pending_list) { | |
1972 | ||
1973 | scb = list_entry(pos, scb_t, list); | |
1974 | ||
1975 | if (scb->cmd == cmd) { /* Found command */ | |
1976 | ||
1977 | scb->state |= aor; | |
1978 | ||
1979 | /* | |
d41ad938 NA |
1980 | * Check if this command has firmware ownership. If |
1981 | * yes, we cannot reset this command. Whenever f/w | |
1da177e4 LT |
1982 | * completes this command, we will return appropriate |
1983 | * status from ISR. | |
1984 | */ | |
1985 | if( scb->state & SCB_ISSUED ) { | |
1986 | ||
1987 | printk(KERN_WARNING | |
5cd049a5 | 1988 | "megaraid: %s[%x], fw owner.\n", |
1da177e4 | 1989 | (aor==SCB_ABORT) ? "ABORTING":"RESET", |
5cd049a5 | 1990 | scb->idx); |
1da177e4 LT |
1991 | |
1992 | return FALSE; | |
1993 | } | |
1994 | else { | |
1995 | ||
1996 | /* | |
1997 | * Not yet issued! Remove from the pending | |
1998 | * list | |
1999 | */ | |
2000 | printk(KERN_WARNING | |
5cd049a5 | 2001 | "megaraid: %s-[%x], driver owner.\n", |
1da177e4 | 2002 | (aor==SCB_ABORT) ? "ABORTING":"RESET", |
5cd049a5 | 2003 | scb->idx); |
1da177e4 LT |
2004 | |
2005 | mega_free_scb(adapter, scb); | |
2006 | ||
2007 | if( aor == SCB_ABORT ) { | |
2008 | cmd->result = (DID_ABORT << 16); | |
2009 | } | |
2010 | else { | |
2011 | cmd->result = (DID_RESET << 16); | |
2012 | } | |
2013 | ||
2014 | list_add_tail(SCSI_LIST(cmd), | |
2015 | &adapter->completed_list); | |
2016 | ||
2017 | return TRUE; | |
2018 | } | |
2019 | } | |
2020 | } | |
2021 | ||
2022 | return FALSE; | |
2023 | } | |
2024 | ||
2025 | static inline int | |
2026 | make_local_pdev(adapter_t *adapter, struct pci_dev **pdev) | |
2027 | { | |
bab41e9b | 2028 | *pdev = alloc_pci_dev(); |
1da177e4 LT |
2029 | |
2030 | if( *pdev == NULL ) return -1; | |
2031 | ||
2032 | memcpy(*pdev, adapter->dev, sizeof(struct pci_dev)); | |
2033 | ||
284901a9 | 2034 | if( pci_set_dma_mask(*pdev, DMA_BIT_MASK(32)) != 0 ) { |
1da177e4 LT |
2035 | kfree(*pdev); |
2036 | return -1; | |
2037 | } | |
2038 | ||
2039 | return 0; | |
2040 | } | |
2041 | ||
2042 | static inline void | |
2043 | free_local_pdev(struct pci_dev *pdev) | |
2044 | { | |
2045 | kfree(pdev); | |
2046 | } | |
2047 | ||
2048 | /** | |
2049 | * mega_allocate_inquiry() | |
2050 | * @dma_handle - handle returned for dma address | |
2051 | * @pdev - handle to pci device | |
2052 | * | |
2053 | * allocates memory for inquiry structure | |
2054 | */ | |
2055 | static inline void * | |
2056 | mega_allocate_inquiry(dma_addr_t *dma_handle, struct pci_dev *pdev) | |
2057 | { | |
2058 | return pci_alloc_consistent(pdev, sizeof(mega_inquiry3), dma_handle); | |
2059 | } | |
2060 | ||
2061 | ||
2062 | static inline void | |
2063 | mega_free_inquiry(void *inquiry, dma_addr_t dma_handle, struct pci_dev *pdev) | |
2064 | { | |
2065 | pci_free_consistent(pdev, sizeof(mega_inquiry3), inquiry, dma_handle); | |
2066 | } | |
2067 | ||
2068 | ||
2069 | #ifdef CONFIG_PROC_FS | |
2070 | /* Following code handles /proc fs */ | |
2071 | ||
2072 | #define CREATE_READ_PROC(string, func) create_proc_read_entry(string, \ | |
2073 | S_IRUSR | S_IFREG, \ | |
2074 | controller_proc_dir_entry, \ | |
2075 | func, adapter) | |
2076 | ||
2077 | /** | |
2078 | * mega_create_proc_entry() | |
2079 | * @index - index in soft state array | |
2080 | * @parent - parent node for this /proc entry | |
2081 | * | |
2082 | * Creates /proc entries for our controllers. | |
2083 | */ | |
2084 | static void | |
2085 | mega_create_proc_entry(int index, struct proc_dir_entry *parent) | |
2086 | { | |
2087 | struct proc_dir_entry *controller_proc_dir_entry = NULL; | |
2088 | u8 string[64] = { 0 }; | |
2089 | adapter_t *adapter = hba_soft_state[index]; | |
2090 | ||
2091 | sprintf(string, "hba%d", adapter->host->host_no); | |
2092 | ||
2093 | controller_proc_dir_entry = | |
2094 | adapter->controller_proc_dir_entry = proc_mkdir(string, parent); | |
2095 | ||
2096 | if(!controller_proc_dir_entry) { | |
2097 | printk(KERN_WARNING "\nmegaraid: proc_mkdir failed\n"); | |
2098 | return; | |
2099 | } | |
2100 | adapter->proc_read = CREATE_READ_PROC("config", proc_read_config); | |
2101 | adapter->proc_stat = CREATE_READ_PROC("stat", proc_read_stat); | |
2102 | adapter->proc_mbox = CREATE_READ_PROC("mailbox", proc_read_mbox); | |
2103 | #if MEGA_HAVE_ENH_PROC | |
2104 | adapter->proc_rr = CREATE_READ_PROC("rebuild-rate", proc_rebuild_rate); | |
2105 | adapter->proc_battery = CREATE_READ_PROC("battery-status", | |
2106 | proc_battery); | |
2107 | ||
2108 | /* | |
2109 | * Display each physical drive on its channel | |
2110 | */ | |
2111 | adapter->proc_pdrvstat[0] = CREATE_READ_PROC("diskdrives-ch0", | |
2112 | proc_pdrv_ch0); | |
2113 | adapter->proc_pdrvstat[1] = CREATE_READ_PROC("diskdrives-ch1", | |
2114 | proc_pdrv_ch1); | |
2115 | adapter->proc_pdrvstat[2] = CREATE_READ_PROC("diskdrives-ch2", | |
2116 | proc_pdrv_ch2); | |
2117 | adapter->proc_pdrvstat[3] = CREATE_READ_PROC("diskdrives-ch3", | |
2118 | proc_pdrv_ch3); | |
2119 | ||
2120 | /* | |
2121 | * Display a set of up to 10 logical drive through each of following | |
2122 | * /proc entries | |
2123 | */ | |
2124 | adapter->proc_rdrvstat[0] = CREATE_READ_PROC("raiddrives-0-9", | |
2125 | proc_rdrv_10); | |
2126 | adapter->proc_rdrvstat[1] = CREATE_READ_PROC("raiddrives-10-19", | |
2127 | proc_rdrv_20); | |
2128 | adapter->proc_rdrvstat[2] = CREATE_READ_PROC("raiddrives-20-29", | |
2129 | proc_rdrv_30); | |
2130 | adapter->proc_rdrvstat[3] = CREATE_READ_PROC("raiddrives-30-39", | |
2131 | proc_rdrv_40); | |
2132 | #endif | |
2133 | } | |
2134 | ||
2135 | ||
2136 | /** | |
2137 | * proc_read_config() | |
2138 | * @page - buffer to write the data in | |
2139 | * @start - where the actual data has been written in page | |
2140 | * @offset - same meaning as the read system call | |
2141 | * @count - same meaning as the read system call | |
2142 | * @eof - set if no more data needs to be returned | |
2143 | * @data - pointer to our soft state | |
2144 | * | |
2145 | * Display configuration information about the controller. | |
2146 | */ | |
2147 | static int | |
2148 | proc_read_config(char *page, char **start, off_t offset, int count, int *eof, | |
2149 | void *data) | |
2150 | { | |
2151 | ||
2152 | adapter_t *adapter = (adapter_t *)data; | |
2153 | int len = 0; | |
2154 | ||
2155 | len += sprintf(page+len, "%s", MEGARAID_VERSION); | |
2156 | ||
2157 | if(adapter->product_info.product_name[0]) | |
2158 | len += sprintf(page+len, "%s\n", | |
2159 | adapter->product_info.product_name); | |
2160 | ||
2161 | len += sprintf(page+len, "Controller Type: "); | |
2162 | ||
2163 | if( adapter->flag & BOARD_MEMMAP ) { | |
2164 | len += sprintf(page+len, | |
2165 | "438/466/467/471/493/518/520/531/532\n"); | |
2166 | } | |
2167 | else { | |
2168 | len += sprintf(page+len, | |
2169 | "418/428/434\n"); | |
2170 | } | |
2171 | ||
2172 | if(adapter->flag & BOARD_40LD) { | |
2173 | len += sprintf(page+len, | |
2174 | "Controller Supports 40 Logical Drives\n"); | |
2175 | } | |
2176 | ||
2177 | if(adapter->flag & BOARD_64BIT) { | |
2178 | len += sprintf(page+len, | |
2179 | "Controller capable of 64-bit memory addressing\n"); | |
2180 | } | |
2181 | if( adapter->has_64bit_addr ) { | |
2182 | len += sprintf(page+len, | |
2183 | "Controller using 64-bit memory addressing\n"); | |
2184 | } | |
2185 | else { | |
2186 | len += sprintf(page+len, | |
2187 | "Controller is not using 64-bit memory addressing\n"); | |
2188 | } | |
2189 | ||
2190 | len += sprintf(page+len, "Base = %08lx, Irq = %d, ", adapter->base, | |
2191 | adapter->host->irq); | |
2192 | ||
2193 | len += sprintf(page+len, "Logical Drives = %d, Channels = %d\n", | |
2194 | adapter->numldrv, adapter->product_info.nchannels); | |
2195 | ||
2196 | len += sprintf(page+len, "Version =%s:%s, DRAM = %dMb\n", | |
2197 | adapter->fw_version, adapter->bios_version, | |
2198 | adapter->product_info.dram_size); | |
2199 | ||
2200 | len += sprintf(page+len, | |
2201 | "Controller Queue Depth = %d, Driver Queue Depth = %d\n", | |
2202 | adapter->product_info.max_commands, adapter->max_cmds); | |
2203 | ||
2204 | len += sprintf(page+len, "support_ext_cdb = %d\n", | |
2205 | adapter->support_ext_cdb); | |
2206 | len += sprintf(page+len, "support_random_del = %d\n", | |
2207 | adapter->support_random_del); | |
2208 | len += sprintf(page+len, "boot_ldrv_enabled = %d\n", | |
2209 | adapter->boot_ldrv_enabled); | |
2210 | len += sprintf(page+len, "boot_ldrv = %d\n", | |
2211 | adapter->boot_ldrv); | |
2212 | len += sprintf(page+len, "boot_pdrv_enabled = %d\n", | |
2213 | adapter->boot_pdrv_enabled); | |
2214 | len += sprintf(page+len, "boot_pdrv_ch = %d\n", | |
2215 | adapter->boot_pdrv_ch); | |
2216 | len += sprintf(page+len, "boot_pdrv_tgt = %d\n", | |
2217 | adapter->boot_pdrv_tgt); | |
2218 | len += sprintf(page+len, "quiescent = %d\n", | |
2219 | atomic_read(&adapter->quiescent)); | |
2220 | len += sprintf(page+len, "has_cluster = %d\n", | |
2221 | adapter->has_cluster); | |
2222 | ||
2223 | len += sprintf(page+len, "\nModule Parameters:\n"); | |
2224 | len += sprintf(page+len, "max_cmd_per_lun = %d\n", | |
2225 | max_cmd_per_lun); | |
2226 | len += sprintf(page+len, "max_sectors_per_io = %d\n", | |
2227 | max_sectors_per_io); | |
2228 | ||
2229 | *eof = 1; | |
2230 | ||
2231 | return len; | |
2232 | } | |
2233 | ||
2234 | ||
2235 | ||
2236 | /** | |
2237 | * proc_read_stat() | |
2238 | * @page - buffer to write the data in | |
2239 | * @start - where the actual data has been written in page | |
2240 | * @offset - same meaning as the read system call | |
2241 | * @count - same meaning as the read system call | |
2242 | * @eof - set if no more data needs to be returned | |
2243 | * @data - pointer to our soft state | |
2244 | * | |
2245 | * Diaplay statistical information about the I/O activity. | |
2246 | */ | |
2247 | static int | |
2248 | proc_read_stat(char *page, char **start, off_t offset, int count, int *eof, | |
2249 | void *data) | |
2250 | { | |
2251 | adapter_t *adapter; | |
2252 | int len; | |
2253 | int i; | |
2254 | ||
2255 | i = 0; /* avoid compilation warnings */ | |
2256 | len = 0; | |
2257 | adapter = (adapter_t *)data; | |
2258 | ||
2259 | len = sprintf(page, "Statistical Information for this controller\n"); | |
2260 | len += sprintf(page+len, "pend_cmds = %d\n", | |
2261 | atomic_read(&adapter->pend_cmds)); | |
2262 | #if MEGA_HAVE_STATS | |
2263 | for(i = 0; i < adapter->numldrv; i++) { | |
2264 | len += sprintf(page+len, "Logical Drive %d:\n", i); | |
2265 | ||
2266 | len += sprintf(page+len, | |
2267 | "\tReads Issued = %lu, Writes Issued = %lu\n", | |
2268 | adapter->nreads[i], adapter->nwrites[i]); | |
2269 | ||
2270 | len += sprintf(page+len, | |
2271 | "\tSectors Read = %lu, Sectors Written = %lu\n", | |
2272 | adapter->nreadblocks[i], adapter->nwriteblocks[i]); | |
2273 | ||
2274 | len += sprintf(page+len, | |
2275 | "\tRead errors = %lu, Write errors = %lu\n\n", | |
2276 | adapter->rd_errors[i], adapter->wr_errors[i]); | |
2277 | } | |
2278 | #else | |
2279 | len += sprintf(page+len, | |
2280 | "IO and error counters not compiled in driver.\n"); | |
2281 | #endif | |
2282 | ||
2283 | *eof = 1; | |
2284 | ||
2285 | return len; | |
2286 | } | |
2287 | ||
2288 | ||
2289 | /** | |
2290 | * proc_read_mbox() | |
2291 | * @page - buffer to write the data in | |
2292 | * @start - where the actual data has been written in page | |
2293 | * @offset - same meaning as the read system call | |
2294 | * @count - same meaning as the read system call | |
2295 | * @eof - set if no more data needs to be returned | |
2296 | * @data - pointer to our soft state | |
2297 | * | |
2298 | * Display mailbox information for the last command issued. This information | |
2299 | * is good for debugging. | |
2300 | */ | |
2301 | static int | |
2302 | proc_read_mbox(char *page, char **start, off_t offset, int count, int *eof, | |
2303 | void *data) | |
2304 | { | |
2305 | ||
2306 | adapter_t *adapter = (adapter_t *)data; | |
2307 | volatile mbox_t *mbox = adapter->mbox; | |
2308 | int len = 0; | |
2309 | ||
2310 | len = sprintf(page, "Contents of Mail Box Structure\n"); | |
2311 | len += sprintf(page+len, " Fw Command = 0x%02x\n", | |
2312 | mbox->m_out.cmd); | |
2313 | len += sprintf(page+len, " Cmd Sequence = 0x%02x\n", | |
2314 | mbox->m_out.cmdid); | |
2315 | len += sprintf(page+len, " No of Sectors= %04d\n", | |
2316 | mbox->m_out.numsectors); | |
2317 | len += sprintf(page+len, " LBA = 0x%02x\n", | |
2318 | mbox->m_out.lba); | |
2319 | len += sprintf(page+len, " DTA = 0x%08x\n", | |
2320 | mbox->m_out.xferaddr); | |
2321 | len += sprintf(page+len, " Logical Drive= 0x%02x\n", | |
2322 | mbox->m_out.logdrv); | |
2323 | len += sprintf(page+len, " No of SG Elmt= 0x%02x\n", | |
2324 | mbox->m_out.numsgelements); | |
2325 | len += sprintf(page+len, " Busy = %01x\n", | |
2326 | mbox->m_in.busy); | |
2327 | len += sprintf(page+len, " Status = 0x%02x\n", | |
2328 | mbox->m_in.status); | |
2329 | ||
2330 | *eof = 1; | |
2331 | ||
2332 | return len; | |
2333 | } | |
2334 | ||
2335 | ||
2336 | /** | |
2337 | * proc_rebuild_rate() | |
2338 | * @page - buffer to write the data in | |
2339 | * @start - where the actual data has been written in page | |
2340 | * @offset - same meaning as the read system call | |
2341 | * @count - same meaning as the read system call | |
2342 | * @eof - set if no more data needs to be returned | |
2343 | * @data - pointer to our soft state | |
2344 | * | |
2345 | * Display current rebuild rate | |
2346 | */ | |
2347 | static int | |
2348 | proc_rebuild_rate(char *page, char **start, off_t offset, int count, int *eof, | |
2349 | void *data) | |
2350 | { | |
2351 | adapter_t *adapter = (adapter_t *)data; | |
2352 | dma_addr_t dma_handle; | |
2353 | caddr_t inquiry; | |
2354 | struct pci_dev *pdev; | |
2355 | int len = 0; | |
2356 | ||
2357 | if( make_local_pdev(adapter, &pdev) != 0 ) { | |
2358 | *eof = 1; | |
2359 | return len; | |
2360 | } | |
2361 | ||
2362 | if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL ) { | |
2363 | free_local_pdev(pdev); | |
2364 | *eof = 1; | |
2365 | return len; | |
2366 | } | |
2367 | ||
2368 | if( mega_adapinq(adapter, dma_handle) != 0 ) { | |
2369 | ||
2370 | len = sprintf(page, "Adapter inquiry failed.\n"); | |
2371 | ||
2372 | printk(KERN_WARNING "megaraid: inquiry failed.\n"); | |
2373 | ||
2374 | mega_free_inquiry(inquiry, dma_handle, pdev); | |
2375 | ||
2376 | free_local_pdev(pdev); | |
2377 | ||
2378 | *eof = 1; | |
2379 | ||
2380 | return len; | |
2381 | } | |
2382 | ||
2383 | if( adapter->flag & BOARD_40LD ) { | |
2384 | len = sprintf(page, "Rebuild Rate: [%d%%]\n", | |
2385 | ((mega_inquiry3 *)inquiry)->rebuild_rate); | |
2386 | } | |
2387 | else { | |
2388 | len = sprintf(page, "Rebuild Rate: [%d%%]\n", | |
2389 | ((mraid_ext_inquiry *) | |
2390 | inquiry)->raid_inq.adapter_info.rebuild_rate); | |
2391 | } | |
2392 | ||
2393 | ||
2394 | mega_free_inquiry(inquiry, dma_handle, pdev); | |
2395 | ||
2396 | free_local_pdev(pdev); | |
2397 | ||
2398 | *eof = 1; | |
2399 | ||
2400 | return len; | |
2401 | } | |
2402 | ||
2403 | ||
2404 | /** | |
2405 | * proc_battery() | |
2406 | * @page - buffer to write the data in | |
2407 | * @start - where the actual data has been written in page | |
2408 | * @offset - same meaning as the read system call | |
2409 | * @count - same meaning as the read system call | |
2410 | * @eof - set if no more data needs to be returned | |
2411 | * @data - pointer to our soft state | |
2412 | * | |
2413 | * Display information about the battery module on the controller. | |
2414 | */ | |
2415 | static int | |
2416 | proc_battery(char *page, char **start, off_t offset, int count, int *eof, | |
2417 | void *data) | |
2418 | { | |
2419 | adapter_t *adapter = (adapter_t *)data; | |
2420 | dma_addr_t dma_handle; | |
2421 | caddr_t inquiry; | |
2422 | struct pci_dev *pdev; | |
2423 | u8 battery_status = 0; | |
2424 | char str[256]; | |
2425 | int len = 0; | |
2426 | ||
2427 | if( make_local_pdev(adapter, &pdev) != 0 ) { | |
2428 | *eof = 1; | |
2429 | return len; | |
2430 | } | |
2431 | ||
2432 | if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL ) { | |
2433 | free_local_pdev(pdev); | |
2434 | *eof = 1; | |
2435 | return len; | |
2436 | } | |
2437 | ||
2438 | if( mega_adapinq(adapter, dma_handle) != 0 ) { | |
2439 | ||
2440 | len = sprintf(page, "Adapter inquiry failed.\n"); | |
2441 | ||
2442 | printk(KERN_WARNING "megaraid: inquiry failed.\n"); | |
2443 | ||
2444 | mega_free_inquiry(inquiry, dma_handle, pdev); | |
2445 | ||
2446 | free_local_pdev(pdev); | |
2447 | ||
2448 | *eof = 1; | |
2449 | ||
2450 | return len; | |
2451 | } | |
2452 | ||
2453 | if( adapter->flag & BOARD_40LD ) { | |
2454 | battery_status = ((mega_inquiry3 *)inquiry)->battery_status; | |
2455 | } | |
2456 | else { | |
2457 | battery_status = ((mraid_ext_inquiry *)inquiry)-> | |
2458 | raid_inq.adapter_info.battery_status; | |
2459 | } | |
2460 | ||
2461 | /* | |
2462 | * Decode the battery status | |
2463 | */ | |
2464 | sprintf(str, "Battery Status:[%d]", battery_status); | |
2465 | ||
2466 | if(battery_status == MEGA_BATT_CHARGE_DONE) | |
2467 | strcat(str, " Charge Done"); | |
2468 | ||
2469 | if(battery_status & MEGA_BATT_MODULE_MISSING) | |
2470 | strcat(str, " Module Missing"); | |
2471 | ||
2472 | if(battery_status & MEGA_BATT_LOW_VOLTAGE) | |
2473 | strcat(str, " Low Voltage"); | |
2474 | ||
2475 | if(battery_status & MEGA_BATT_TEMP_HIGH) | |
2476 | strcat(str, " Temperature High"); | |
2477 | ||
2478 | if(battery_status & MEGA_BATT_PACK_MISSING) | |
2479 | strcat(str, " Pack Missing"); | |
2480 | ||
2481 | if(battery_status & MEGA_BATT_CHARGE_INPROG) | |
2482 | strcat(str, " Charge In-progress"); | |
2483 | ||
2484 | if(battery_status & MEGA_BATT_CHARGE_FAIL) | |
2485 | strcat(str, " Charge Fail"); | |
2486 | ||
2487 | if(battery_status & MEGA_BATT_CYCLES_EXCEEDED) | |
2488 | strcat(str, " Cycles Exceeded"); | |
2489 | ||
2490 | len = sprintf(page, "%s\n", str); | |
2491 | ||
2492 | ||
2493 | mega_free_inquiry(inquiry, dma_handle, pdev); | |
2494 | ||
2495 | free_local_pdev(pdev); | |
2496 | ||
2497 | *eof = 1; | |
2498 | ||
2499 | return len; | |
2500 | } | |
2501 | ||
2502 | ||
2503 | /** | |
2504 | * proc_pdrv_ch0() | |
2505 | * @page - buffer to write the data in | |
2506 | * @start - where the actual data has been written in page | |
2507 | * @offset - same meaning as the read system call | |
2508 | * @count - same meaning as the read system call | |
2509 | * @eof - set if no more data needs to be returned | |
2510 | * @data - pointer to our soft state | |
2511 | * | |
2512 | * Display information about the physical drives on physical channel 0. | |
2513 | */ | |
2514 | static int | |
2515 | proc_pdrv_ch0(char *page, char **start, off_t offset, int count, int *eof, | |
2516 | void *data) | |
2517 | { | |
2518 | adapter_t *adapter = (adapter_t *)data; | |
2519 | ||
2520 | *eof = 1; | |
2521 | ||
2522 | return (proc_pdrv(adapter, page, 0)); | |
2523 | } | |
2524 | ||
2525 | ||
2526 | /** | |
2527 | * proc_pdrv_ch1() | |
2528 | * @page - buffer to write the data in | |
2529 | * @start - where the actual data has been written in page | |
2530 | * @offset - same meaning as the read system call | |
2531 | * @count - same meaning as the read system call | |
2532 | * @eof - set if no more data needs to be returned | |
2533 | * @data - pointer to our soft state | |
2534 | * | |
2535 | * Display information about the physical drives on physical channel 1. | |
2536 | */ | |
2537 | static int | |
2538 | proc_pdrv_ch1(char *page, char **start, off_t offset, int count, int *eof, | |
2539 | void *data) | |
2540 | { | |
2541 | adapter_t *adapter = (adapter_t *)data; | |
2542 | ||
2543 | *eof = 1; | |
2544 | ||
2545 | return (proc_pdrv(adapter, page, 1)); | |
2546 | } | |
2547 | ||
2548 | ||
2549 | /** | |
2550 | * proc_pdrv_ch2() | |
2551 | * @page - buffer to write the data in | |
2552 | * @start - where the actual data has been written in page | |
2553 | * @offset - same meaning as the read system call | |
2554 | * @count - same meaning as the read system call | |
2555 | * @eof - set if no more data needs to be returned | |
2556 | * @data - pointer to our soft state | |
2557 | * | |
2558 | * Display information about the physical drives on physical channel 2. | |
2559 | */ | |
2560 | static int | |
2561 | proc_pdrv_ch2(char *page, char **start, off_t offset, int count, int *eof, | |
2562 | void *data) | |
2563 | { | |
2564 | adapter_t *adapter = (adapter_t *)data; | |
2565 | ||
2566 | *eof = 1; | |
2567 | ||
2568 | return (proc_pdrv(adapter, page, 2)); | |
2569 | } | |
2570 | ||
2571 | ||
2572 | /** | |
2573 | * proc_pdrv_ch3() | |
2574 | * @page - buffer to write the data in | |
2575 | * @start - where the actual data has been written in page | |
2576 | * @offset - same meaning as the read system call | |
2577 | * @count - same meaning as the read system call | |
2578 | * @eof - set if no more data needs to be returned | |
2579 | * @data - pointer to our soft state | |
2580 | * | |
2581 | * Display information about the physical drives on physical channel 3. | |
2582 | */ | |
2583 | static int | |
2584 | proc_pdrv_ch3(char *page, char **start, off_t offset, int count, int *eof, | |
2585 | void *data) | |
2586 | { | |
2587 | adapter_t *adapter = (adapter_t *)data; | |
2588 | ||
2589 | *eof = 1; | |
2590 | ||
2591 | return (proc_pdrv(adapter, page, 3)); | |
2592 | } | |
2593 | ||
2594 | ||
2595 | /** | |
2596 | * proc_pdrv() | |
2597 | * @page - buffer to write the data in | |
2598 | * @adapter - pointer to our soft state | |
2599 | * | |
2600 | * Display information about the physical drives. | |
2601 | */ | |
2602 | static int | |
2603 | proc_pdrv(adapter_t *adapter, char *page, int channel) | |
2604 | { | |
2605 | dma_addr_t dma_handle; | |
2606 | char *scsi_inq; | |
2607 | dma_addr_t scsi_inq_dma_handle; | |
2608 | caddr_t inquiry; | |
2609 | struct pci_dev *pdev; | |
2610 | u8 *pdrv_state; | |
2611 | u8 state; | |
2612 | int tgt; | |
2613 | int max_channels; | |
2614 | int len = 0; | |
2615 | char str[80]; | |
2616 | int i; | |
2617 | ||
2618 | if( make_local_pdev(adapter, &pdev) != 0 ) { | |
2619 | return len; | |
2620 | } | |
2621 | ||
2622 | if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL ) { | |
2623 | goto free_pdev; | |
2624 | } | |
2625 | ||
2626 | if( mega_adapinq(adapter, dma_handle) != 0 ) { | |
2627 | len = sprintf(page, "Adapter inquiry failed.\n"); | |
2628 | ||
2629 | printk(KERN_WARNING "megaraid: inquiry failed.\n"); | |
2630 | ||
2631 | goto free_inquiry; | |
2632 | } | |
2633 | ||
2634 | ||
2635 | scsi_inq = pci_alloc_consistent(pdev, 256, &scsi_inq_dma_handle); | |
2636 | ||
2637 | if( scsi_inq == NULL ) { | |
2638 | len = sprintf(page, "memory not available for scsi inq.\n"); | |
2639 | ||
2640 | goto free_inquiry; | |
2641 | } | |
2642 | ||
2643 | if( adapter->flag & BOARD_40LD ) { | |
2644 | pdrv_state = ((mega_inquiry3 *)inquiry)->pdrv_state; | |
2645 | } | |
2646 | else { | |
2647 | pdrv_state = ((mraid_ext_inquiry *)inquiry)-> | |
2648 | raid_inq.pdrv_info.pdrv_state; | |
2649 | } | |
2650 | ||
2651 | max_channels = adapter->product_info.nchannels; | |
2652 | ||
2653 | if( channel >= max_channels ) { | |
2654 | goto free_pci; | |
2655 | } | |
2656 | ||
2657 | for( tgt = 0; tgt <= MAX_TARGET; tgt++ ) { | |
2658 | ||
2659 | i = channel*16 + tgt; | |
2660 | ||
2661 | state = *(pdrv_state + i); | |
2662 | ||
2663 | switch( state & 0x0F ) { | |
2664 | ||
2665 | case PDRV_ONLINE: | |
2666 | sprintf(str, | |
2667 | "Channel:%2d Id:%2d State: Online", | |
2668 | channel, tgt); | |
2669 | break; | |
2670 | ||
2671 | case PDRV_FAILED: | |
2672 | sprintf(str, | |
2673 | "Channel:%2d Id:%2d State: Failed", | |
2674 | channel, tgt); | |
2675 | break; | |
2676 | ||
2677 | case PDRV_RBLD: | |
2678 | sprintf(str, | |
2679 | "Channel:%2d Id:%2d State: Rebuild", | |
2680 | channel, tgt); | |
2681 | break; | |
2682 | ||
2683 | case PDRV_HOTSPARE: | |
2684 | sprintf(str, | |
2685 | "Channel:%2d Id:%2d State: Hot spare", | |
2686 | channel, tgt); | |
2687 | break; | |
2688 | ||
2689 | default: | |
2690 | sprintf(str, | |
2691 | "Channel:%2d Id:%2d State: Un-configured", | |
2692 | channel, tgt); | |
2693 | break; | |
2694 | ||
2695 | } | |
2696 | ||
2697 | /* | |
2698 | * This interface displays inquiries for disk drives | |
2699 | * only. Inquries for logical drives and non-disk | |
2700 | * devices are available through /proc/scsi/scsi | |
2701 | */ | |
2702 | memset(scsi_inq, 0, 256); | |
2703 | if( mega_internal_dev_inquiry(adapter, channel, tgt, | |
2704 | scsi_inq_dma_handle) || | |
2705 | (scsi_inq[0] & 0x1F) != TYPE_DISK ) { | |
2706 | continue; | |
2707 | } | |
2708 | ||
2709 | /* | |
2710 | * Check for overflow. We print less than 240 | |
2711 | * characters for inquiry | |
2712 | */ | |
2713 | if( (len + 240) >= PAGE_SIZE ) break; | |
2714 | ||
2715 | len += sprintf(page+len, "%s.\n", str); | |
2716 | ||
2717 | len += mega_print_inquiry(page+len, scsi_inq); | |
2718 | } | |
2719 | ||
2720 | free_pci: | |
2721 | pci_free_consistent(pdev, 256, scsi_inq, scsi_inq_dma_handle); | |
2722 | free_inquiry: | |
2723 | mega_free_inquiry(inquiry, dma_handle, pdev); | |
2724 | free_pdev: | |
2725 | free_local_pdev(pdev); | |
2726 | ||
2727 | return len; | |
2728 | } | |
2729 | ||
2730 | ||
2731 | /* | |
2732 | * Display scsi inquiry | |
2733 | */ | |
2734 | static int | |
2735 | mega_print_inquiry(char *page, char *scsi_inq) | |
2736 | { | |
2737 | int len = 0; | |
2738 | int i; | |
2739 | ||
2740 | len = sprintf(page, " Vendor: "); | |
2741 | for( i = 8; i < 16; i++ ) { | |
2742 | len += sprintf(page+len, "%c", scsi_inq[i]); | |
2743 | } | |
2744 | ||
2745 | len += sprintf(page+len, " Model: "); | |
2746 | ||
2747 | for( i = 16; i < 32; i++ ) { | |
2748 | len += sprintf(page+len, "%c", scsi_inq[i]); | |
2749 | } | |
2750 | ||
2751 | len += sprintf(page+len, " Rev: "); | |
2752 | ||
2753 | for( i = 32; i < 36; i++ ) { | |
2754 | len += sprintf(page+len, "%c", scsi_inq[i]); | |
2755 | } | |
2756 | ||
2757 | len += sprintf(page+len, "\n"); | |
2758 | ||
2759 | i = scsi_inq[0] & 0x1f; | |
2760 | ||
4ff36718 | 2761 | len += sprintf(page+len, " Type: %s ", scsi_device_type(i)); |
1da177e4 LT |
2762 | |
2763 | len += sprintf(page+len, | |
2764 | " ANSI SCSI revision: %02x", scsi_inq[2] & 0x07); | |
2765 | ||
2766 | if( (scsi_inq[2] & 0x07) == 1 && (scsi_inq[3] & 0x0f) == 1 ) | |
2767 | len += sprintf(page+len, " CCS\n"); | |
2768 | else | |
2769 | len += sprintf(page+len, "\n"); | |
2770 | ||
2771 | return len; | |
2772 | } | |
2773 | ||
2774 | ||
2775 | /** | |
2776 | * proc_rdrv_10() | |
2777 | * @page - buffer to write the data in | |
2778 | * @start - where the actual data has been written in page | |
2779 | * @offset - same meaning as the read system call | |
2780 | * @count - same meaning as the read system call | |
2781 | * @eof - set if no more data needs to be returned | |
2782 | * @data - pointer to our soft state | |
2783 | * | |
2784 | * Display real time information about the logical drives 0 through 9. | |
2785 | */ | |
2786 | static int | |
2787 | proc_rdrv_10(char *page, char **start, off_t offset, int count, int *eof, | |
2788 | void *data) | |
2789 | { | |
2790 | adapter_t *adapter = (adapter_t *)data; | |
2791 | ||
2792 | *eof = 1; | |
2793 | ||
2794 | return (proc_rdrv(adapter, page, 0, 9)); | |
2795 | } | |
2796 | ||
2797 | ||
2798 | /** | |
2799 | * proc_rdrv_20() | |
2800 | * @page - buffer to write the data in | |
2801 | * @start - where the actual data has been written in page | |
2802 | * @offset - same meaning as the read system call | |
2803 | * @count - same meaning as the read system call | |
2804 | * @eof - set if no more data needs to be returned | |
2805 | * @data - pointer to our soft state | |
2806 | * | |
2807 | * Display real time information about the logical drives 0 through 9. | |
2808 | */ | |
2809 | static int | |
2810 | proc_rdrv_20(char *page, char **start, off_t offset, int count, int *eof, | |
2811 | void *data) | |
2812 | { | |
2813 | adapter_t *adapter = (adapter_t *)data; | |
2814 | ||
2815 | *eof = 1; | |
2816 | ||
2817 | return (proc_rdrv(adapter, page, 10, 19)); | |
2818 | } | |
2819 | ||
2820 | ||
2821 | /** | |
2822 | * proc_rdrv_30() | |
2823 | * @page - buffer to write the data in | |
2824 | * @start - where the actual data has been written in page | |
2825 | * @offset - same meaning as the read system call | |
2826 | * @count - same meaning as the read system call | |
2827 | * @eof - set if no more data needs to be returned | |
2828 | * @data - pointer to our soft state | |
2829 | * | |
2830 | * Display real time information about the logical drives 0 through 9. | |
2831 | */ | |
2832 | static int | |
2833 | proc_rdrv_30(char *page, char **start, off_t offset, int count, int *eof, | |
2834 | void *data) | |
2835 | { | |
2836 | adapter_t *adapter = (adapter_t *)data; | |
2837 | ||
2838 | *eof = 1; | |
2839 | ||
2840 | return (proc_rdrv(adapter, page, 20, 29)); | |
2841 | } | |
2842 | ||
2843 | ||
2844 | /** | |
2845 | * proc_rdrv_40() | |
2846 | * @page - buffer to write the data in | |
2847 | * @start - where the actual data has been written in page | |
2848 | * @offset - same meaning as the read system call | |
2849 | * @count - same meaning as the read system call | |
2850 | * @eof - set if no more data needs to be returned | |
2851 | * @data - pointer to our soft state | |
2852 | * | |
2853 | * Display real time information about the logical drives 0 through 9. | |
2854 | */ | |
2855 | static int | |
2856 | proc_rdrv_40(char *page, char **start, off_t offset, int count, int *eof, | |
2857 | void *data) | |
2858 | { | |
2859 | adapter_t *adapter = (adapter_t *)data; | |
2860 | ||
2861 | *eof = 1; | |
2862 | ||
2863 | return (proc_rdrv(adapter, page, 30, 39)); | |
2864 | } | |
2865 | ||
2866 | ||
2867 | /** | |
2868 | * proc_rdrv() | |
2869 | * @page - buffer to write the data in | |
2870 | * @adapter - pointer to our soft state | |
2871 | * @start - starting logical drive to display | |
2872 | * @end - ending logical drive to display | |
2873 | * | |
2874 | * We do not print the inquiry information since its already available through | |
2875 | * /proc/scsi/scsi interface | |
2876 | */ | |
2877 | static int | |
2878 | proc_rdrv(adapter_t *adapter, char *page, int start, int end ) | |
2879 | { | |
2880 | dma_addr_t dma_handle; | |
2881 | logdrv_param *lparam; | |
2882 | megacmd_t mc; | |
2883 | char *disk_array; | |
2884 | dma_addr_t disk_array_dma_handle; | |
2885 | caddr_t inquiry; | |
2886 | struct pci_dev *pdev; | |
2887 | u8 *rdrv_state; | |
2888 | int num_ldrv; | |
2889 | u32 array_sz; | |
2890 | int len = 0; | |
2891 | int i; | |
2892 | ||
2893 | if( make_local_pdev(adapter, &pdev) != 0 ) { | |
2894 | return len; | |
2895 | } | |
2896 | ||
2897 | if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL ) { | |
2898 | free_local_pdev(pdev); | |
2899 | return len; | |
2900 | } | |
2901 | ||
2902 | if( mega_adapinq(adapter, dma_handle) != 0 ) { | |
2903 | ||
2904 | len = sprintf(page, "Adapter inquiry failed.\n"); | |
2905 | ||
2906 | printk(KERN_WARNING "megaraid: inquiry failed.\n"); | |
2907 | ||
2908 | mega_free_inquiry(inquiry, dma_handle, pdev); | |
2909 | ||
2910 | free_local_pdev(pdev); | |
2911 | ||
2912 | return len; | |
2913 | } | |
2914 | ||
2915 | memset(&mc, 0, sizeof(megacmd_t)); | |
2916 | ||
2917 | if( adapter->flag & BOARD_40LD ) { | |
2918 | array_sz = sizeof(disk_array_40ld); | |
2919 | ||
2920 | rdrv_state = ((mega_inquiry3 *)inquiry)->ldrv_state; | |
2921 | ||
2922 | num_ldrv = ((mega_inquiry3 *)inquiry)->num_ldrv; | |
2923 | } | |
2924 | else { | |
2925 | array_sz = sizeof(disk_array_8ld); | |
2926 | ||
2927 | rdrv_state = ((mraid_ext_inquiry *)inquiry)-> | |
2928 | raid_inq.logdrv_info.ldrv_state; | |
2929 | ||
2930 | num_ldrv = ((mraid_ext_inquiry *)inquiry)-> | |
2931 | raid_inq.logdrv_info.num_ldrv; | |
2932 | } | |
2933 | ||
2934 | disk_array = pci_alloc_consistent(pdev, array_sz, | |
2935 | &disk_array_dma_handle); | |
2936 | ||
2937 | if( disk_array == NULL ) { | |
2938 | len = sprintf(page, "memory not available.\n"); | |
2939 | ||
2940 | mega_free_inquiry(inquiry, dma_handle, pdev); | |
2941 | ||
2942 | free_local_pdev(pdev); | |
2943 | ||
2944 | return len; | |
2945 | } | |
2946 | ||
2947 | mc.xferaddr = (u32)disk_array_dma_handle; | |
2948 | ||
2949 | if( adapter->flag & BOARD_40LD ) { | |
2950 | mc.cmd = FC_NEW_CONFIG; | |
2951 | mc.opcode = OP_DCMD_READ_CONFIG; | |
2952 | ||
cb0258a2 | 2953 | if( mega_internal_command(adapter, &mc, NULL) ) { |
1da177e4 LT |
2954 | |
2955 | len = sprintf(page, "40LD read config failed.\n"); | |
2956 | ||
2957 | mega_free_inquiry(inquiry, dma_handle, pdev); | |
2958 | ||
2959 | pci_free_consistent(pdev, array_sz, disk_array, | |
2960 | disk_array_dma_handle); | |
2961 | ||
2962 | free_local_pdev(pdev); | |
2963 | ||
2964 | return len; | |
2965 | } | |
2966 | ||
2967 | } | |
2968 | else { | |
2969 | mc.cmd = NEW_READ_CONFIG_8LD; | |
2970 | ||
cb0258a2 | 2971 | if( mega_internal_command(adapter, &mc, NULL) ) { |
1da177e4 LT |
2972 | |
2973 | mc.cmd = READ_CONFIG_8LD; | |
2974 | ||
cb0258a2 | 2975 | if( mega_internal_command(adapter, &mc, |
1da177e4 LT |
2976 | NULL) ){ |
2977 | ||
2978 | len = sprintf(page, | |
2979 | "8LD read config failed.\n"); | |
2980 | ||
2981 | mega_free_inquiry(inquiry, dma_handle, pdev); | |
2982 | ||
2983 | pci_free_consistent(pdev, array_sz, | |
2984 | disk_array, | |
2985 | disk_array_dma_handle); | |
2986 | ||
2987 | free_local_pdev(pdev); | |
2988 | ||
2989 | return len; | |
2990 | } | |
2991 | } | |
2992 | } | |
2993 | ||
2994 | for( i = start; i < ( (end+1 < num_ldrv) ? end+1 : num_ldrv ); i++ ) { | |
2995 | ||
2996 | if( adapter->flag & BOARD_40LD ) { | |
2997 | lparam = | |
2998 | &((disk_array_40ld *)disk_array)->ldrv[i].lparam; | |
2999 | } | |
3000 | else { | |
3001 | lparam = | |
3002 | &((disk_array_8ld *)disk_array)->ldrv[i].lparam; | |
3003 | } | |
3004 | ||
3005 | /* | |
3006 | * Check for overflow. We print less than 240 characters for | |
3007 | * information about each logical drive. | |
3008 | */ | |
3009 | if( (len + 240) >= PAGE_SIZE ) break; | |
3010 | ||
3011 | len += sprintf(page+len, "Logical drive:%2d:, ", i); | |
3012 | ||
3013 | switch( rdrv_state[i] & 0x0F ) { | |
3014 | case RDRV_OFFLINE: | |
3015 | len += sprintf(page+len, "state: offline"); | |
3016 | break; | |
3017 | ||
3018 | case RDRV_DEGRADED: | |
3019 | len += sprintf(page+len, "state: degraded"); | |
3020 | break; | |
3021 | ||
3022 | case RDRV_OPTIMAL: | |
3023 | len += sprintf(page+len, "state: optimal"); | |
3024 | break; | |
3025 | ||
3026 | case RDRV_DELETED: | |
3027 | len += sprintf(page+len, "state: deleted"); | |
3028 | break; | |
3029 | ||
3030 | default: | |
3031 | len += sprintf(page+len, "state: unknown"); | |
3032 | break; | |
3033 | } | |
3034 | ||
3035 | /* | |
3036 | * Check if check consistency or initialization is going on | |
3037 | * for this logical drive. | |
3038 | */ | |
3039 | if( (rdrv_state[i] & 0xF0) == 0x20 ) { | |
3040 | len += sprintf(page+len, | |
3041 | ", check-consistency in progress"); | |
3042 | } | |
3043 | else if( (rdrv_state[i] & 0xF0) == 0x10 ) { | |
3044 | len += sprintf(page+len, | |
3045 | ", initialization in progress"); | |
3046 | } | |
3047 | ||
3048 | len += sprintf(page+len, "\n"); | |
3049 | ||
3050 | len += sprintf(page+len, "Span depth:%3d, ", | |
3051 | lparam->span_depth); | |
3052 | ||
3053 | len += sprintf(page+len, "RAID level:%3d, ", | |
3054 | lparam->level); | |
3055 | ||
3056 | len += sprintf(page+len, "Stripe size:%3d, ", | |
3057 | lparam->stripe_sz ? lparam->stripe_sz/2: 128); | |
3058 | ||
3059 | len += sprintf(page+len, "Row size:%3d\n", | |
3060 | lparam->row_size); | |
3061 | ||
3062 | ||
3063 | len += sprintf(page+len, "Read Policy: "); | |
3064 | ||
3065 | switch(lparam->read_ahead) { | |
3066 | ||
3067 | case NO_READ_AHEAD: | |
3068 | len += sprintf(page+len, "No read ahead, "); | |
3069 | break; | |
3070 | ||
3071 | case READ_AHEAD: | |
3072 | len += sprintf(page+len, "Read ahead, "); | |
3073 | break; | |
3074 | ||
3075 | case ADAP_READ_AHEAD: | |
3076 | len += sprintf(page+len, "Adaptive, "); | |
3077 | break; | |
3078 | ||
3079 | } | |
3080 | ||
3081 | len += sprintf(page+len, "Write Policy: "); | |
3082 | ||
3083 | switch(lparam->write_mode) { | |
3084 | ||
3085 | case WRMODE_WRITE_THRU: | |
3086 | len += sprintf(page+len, "Write thru, "); | |
3087 | break; | |
3088 | ||
3089 | case WRMODE_WRITE_BACK: | |
3090 | len += sprintf(page+len, "Write back, "); | |
3091 | break; | |
3092 | } | |
3093 | ||
3094 | len += sprintf(page+len, "Cache Policy: "); | |
3095 | ||
3096 | switch(lparam->direct_io) { | |
3097 | ||
3098 | case CACHED_IO: | |
3099 | len += sprintf(page+len, "Cached IO\n\n"); | |
3100 | break; | |
3101 | ||
3102 | case DIRECT_IO: | |
3103 | len += sprintf(page+len, "Direct IO\n\n"); | |
3104 | break; | |
3105 | } | |
3106 | } | |
3107 | ||
3108 | mega_free_inquiry(inquiry, dma_handle, pdev); | |
3109 | ||
3110 | pci_free_consistent(pdev, array_sz, disk_array, | |
3111 | disk_array_dma_handle); | |
3112 | ||
3113 | free_local_pdev(pdev); | |
3114 | ||
3115 | return len; | |
3116 | } | |
84a3c97b | 3117 | #else |
3118 | static inline void mega_create_proc_entry(int index, struct proc_dir_entry *parent) | |
3119 | { | |
3120 | } | |
1da177e4 LT |
3121 | #endif |
3122 | ||
3123 | ||
3124 | /** | |
3125 | * megaraid_biosparam() | |
3126 | * | |
3127 | * Return the disk geometry for a particular disk | |
3128 | */ | |
3129 | static int | |
3130 | megaraid_biosparam(struct scsi_device *sdev, struct block_device *bdev, | |
3131 | sector_t capacity, int geom[]) | |
3132 | { | |
3133 | adapter_t *adapter; | |
3134 | unsigned char *bh; | |
3135 | int heads; | |
3136 | int sectors; | |
3137 | int cylinders; | |
3138 | int rval; | |
3139 | ||
3140 | /* Get pointer to host config structure */ | |
3141 | adapter = (adapter_t *)sdev->host->hostdata; | |
3142 | ||
3143 | if (IS_RAID_CH(adapter, sdev->channel)) { | |
3144 | /* Default heads (64) & sectors (32) */ | |
3145 | heads = 64; | |
3146 | sectors = 32; | |
3147 | cylinders = (ulong)capacity / (heads * sectors); | |
3148 | ||
3149 | /* | |
3150 | * Handle extended translation size for logical drives | |
3151 | * > 1Gb | |
3152 | */ | |
3153 | if ((ulong)capacity >= 0x200000) { | |
3154 | heads = 255; | |
3155 | sectors = 63; | |
3156 | cylinders = (ulong)capacity / (heads * sectors); | |
3157 | } | |
3158 | ||
3159 | /* return result */ | |
3160 | geom[0] = heads; | |
3161 | geom[1] = sectors; | |
3162 | geom[2] = cylinders; | |
3163 | } | |
3164 | else { | |
3165 | bh = scsi_bios_ptable(bdev); | |
3166 | ||
3167 | if( bh ) { | |
3168 | rval = scsi_partsize(bh, capacity, | |
3169 | &geom[2], &geom[0], &geom[1]); | |
3170 | kfree(bh); | |
3171 | if( rval != -1 ) | |
3172 | return rval; | |
3173 | } | |
3174 | ||
3175 | printk(KERN_INFO | |
3176 | "megaraid: invalid partition on this disk on channel %d\n", | |
3177 | sdev->channel); | |
3178 | ||
3179 | /* Default heads (64) & sectors (32) */ | |
3180 | heads = 64; | |
3181 | sectors = 32; | |
3182 | cylinders = (ulong)capacity / (heads * sectors); | |
3183 | ||
3184 | /* Handle extended translation size for logical drives > 1Gb */ | |
3185 | if ((ulong)capacity >= 0x200000) { | |
3186 | heads = 255; | |
3187 | sectors = 63; | |
3188 | cylinders = (ulong)capacity / (heads * sectors); | |
3189 | } | |
3190 | ||
3191 | /* return result */ | |
3192 | geom[0] = heads; | |
3193 | geom[1] = sectors; | |
3194 | geom[2] = cylinders; | |
3195 | } | |
3196 | ||
3197 | return 0; | |
3198 | } | |
3199 | ||
3200 | /** | |
3201 | * mega_init_scb() | |
3202 | * @adapter - pointer to our soft state | |
3203 | * | |
3204 | * Allocate memory for the various pointers in the scb structures: | |
3205 | * scatter-gather list pointer, passthru and extended passthru structure | |
3206 | * pointers. | |
3207 | */ | |
3208 | static int | |
3209 | mega_init_scb(adapter_t *adapter) | |
3210 | { | |
3211 | scb_t *scb; | |
3212 | int i; | |
3213 | ||
3214 | for( i = 0; i < adapter->max_cmds; i++ ) { | |
3215 | ||
3216 | scb = &adapter->scb_list[i]; | |
3217 | ||
3218 | scb->sgl64 = NULL; | |
3219 | scb->sgl = NULL; | |
3220 | scb->pthru = NULL; | |
3221 | scb->epthru = NULL; | |
3222 | } | |
3223 | ||
3224 | for( i = 0; i < adapter->max_cmds; i++ ) { | |
3225 | ||
3226 | scb = &adapter->scb_list[i]; | |
3227 | ||
3228 | scb->idx = i; | |
3229 | ||
3230 | scb->sgl64 = pci_alloc_consistent(adapter->dev, | |
3231 | sizeof(mega_sgl64) * adapter->sglen, | |
3232 | &scb->sgl_dma_addr); | |
3233 | ||
3234 | scb->sgl = (mega_sglist *)scb->sgl64; | |
3235 | ||
3236 | if( !scb->sgl ) { | |
3237 | printk(KERN_WARNING "RAID: Can't allocate sglist.\n"); | |
3238 | mega_free_sgl(adapter); | |
3239 | return -1; | |
3240 | } | |
3241 | ||
3242 | scb->pthru = pci_alloc_consistent(adapter->dev, | |
3243 | sizeof(mega_passthru), | |
3244 | &scb->pthru_dma_addr); | |
3245 | ||
3246 | if( !scb->pthru ) { | |
3247 | printk(KERN_WARNING "RAID: Can't allocate passthru.\n"); | |
3248 | mega_free_sgl(adapter); | |
3249 | return -1; | |
3250 | } | |
3251 | ||
3252 | scb->epthru = pci_alloc_consistent(adapter->dev, | |
3253 | sizeof(mega_ext_passthru), | |
3254 | &scb->epthru_dma_addr); | |
3255 | ||
3256 | if( !scb->epthru ) { | |
3257 | printk(KERN_WARNING | |
3258 | "Can't allocate extended passthru.\n"); | |
3259 | mega_free_sgl(adapter); | |
3260 | return -1; | |
3261 | } | |
3262 | ||
3263 | ||
3264 | scb->dma_type = MEGA_DMA_TYPE_NONE; | |
3265 | ||
3266 | /* | |
3267 | * Link to free list | |
3268 | * lock not required since we are loading the driver, so no | |
3269 | * commands possible right now. | |
3270 | */ | |
3271 | scb->state = SCB_FREE; | |
3272 | scb->cmd = NULL; | |
3273 | list_add(&scb->list, &adapter->free_list); | |
3274 | } | |
3275 | ||
3276 | return 0; | |
3277 | } | |
3278 | ||
3279 | ||
3280 | /** | |
3281 | * megadev_open() | |
3282 | * @inode - unused | |
3283 | * @filep - unused | |
3284 | * | |
3285 | * Routines for the character/ioctl interface to the driver. Find out if this | |
d21c95c5 | 3286 | * is a valid open. |
1da177e4 LT |
3287 | */ |
3288 | static int | |
3289 | megadev_open (struct inode *inode, struct file *filep) | |
3290 | { | |
3291 | /* | |
3292 | * Only allow superuser to access private ioctl interface | |
3293 | */ | |
3294 | if( !capable(CAP_SYS_ADMIN) ) return -EACCES; | |
3295 | ||
3296 | return 0; | |
3297 | } | |
3298 | ||
3299 | ||
3300 | /** | |
3301 | * megadev_ioctl() | |
3302 | * @inode - Our device inode | |
3303 | * @filep - unused | |
3304 | * @cmd - ioctl command | |
3305 | * @arg - user buffer | |
3306 | * | |
3307 | * ioctl entry point for our private ioctl interface. We move the data in from | |
3308 | * the user space, prepare the command (if necessary, convert the old MIMD | |
3309 | * ioctl to new ioctl command), and issue a synchronous command to the | |
3310 | * controller. | |
3311 | */ | |
3312 | static int | |
f4927c45 | 3313 | megadev_ioctl(struct file *filep, unsigned int cmd, unsigned long arg) |
1da177e4 LT |
3314 | { |
3315 | adapter_t *adapter; | |
3316 | nitioctl_t uioc; | |
3317 | int adapno; | |
3318 | int rval; | |
3319 | mega_passthru __user *upthru; /* user address for passthru */ | |
3320 | mega_passthru *pthru; /* copy user passthru here */ | |
3321 | dma_addr_t pthru_dma_hndl; | |
3322 | void *data = NULL; /* data to be transferred */ | |
3323 | dma_addr_t data_dma_hndl; /* dma handle for data xfer area */ | |
3324 | megacmd_t mc; | |
3325 | megastat_t __user *ustats; | |
3326 | int num_ldrv; | |
3327 | u32 uxferaddr = 0; | |
3328 | struct pci_dev *pdev; | |
3329 | ||
3330 | ustats = NULL; /* avoid compilation warnings */ | |
3331 | num_ldrv = 0; | |
3332 | ||
3333 | /* | |
3334 | * Make sure only USCSICMD are issued through this interface. | |
3335 | * MIMD application would still fire different command. | |
3336 | */ | |
3337 | if( (_IOC_TYPE(cmd) != MEGAIOC_MAGIC) && (cmd != USCSICMD) ) { | |
3338 | return -EINVAL; | |
3339 | } | |
3340 | ||
3341 | /* | |
3342 | * Check and convert a possible MIMD command to NIT command. | |
3343 | * mega_m_to_n() copies the data from the user space, so we do not | |
3344 | * have to do it here. | |
3345 | * NOTE: We will need some user address to copyout the data, therefore | |
3346 | * the inteface layer will also provide us with the required user | |
3347 | * addresses. | |
3348 | */ | |
3349 | memset(&uioc, 0, sizeof(nitioctl_t)); | |
3350 | if( (rval = mega_m_to_n( (void __user *)arg, &uioc)) != 0 ) | |
3351 | return rval; | |
3352 | ||
3353 | ||
3354 | switch( uioc.opcode ) { | |
3355 | ||
3356 | case GET_DRIVER_VER: | |
3357 | if( put_user(driver_ver, (u32 __user *)uioc.uioc_uaddr) ) | |
3358 | return (-EFAULT); | |
3359 | ||
3360 | break; | |
3361 | ||
3362 | case GET_N_ADAP: | |
3363 | if( put_user(hba_count, (u32 __user *)uioc.uioc_uaddr) ) | |
3364 | return (-EFAULT); | |
3365 | ||
3366 | /* | |
3367 | * Shucks. MIMD interface returns a positive value for number | |
3368 | * of adapters. TODO: Change it to return 0 when there is no | |
3369 | * applicatio using mimd interface. | |
3370 | */ | |
3371 | return hba_count; | |
3372 | ||
3373 | case GET_ADAP_INFO: | |
3374 | ||
3375 | /* | |
3376 | * Which adapter | |
3377 | */ | |
3378 | if( (adapno = GETADAP(uioc.adapno)) >= hba_count ) | |
3379 | return (-ENODEV); | |
3380 | ||
3381 | if( copy_to_user(uioc.uioc_uaddr, mcontroller+adapno, | |
3382 | sizeof(struct mcontroller)) ) | |
3383 | return (-EFAULT); | |
3384 | break; | |
3385 | ||
3386 | #if MEGA_HAVE_STATS | |
3387 | ||
3388 | case GET_STATS: | |
3389 | /* | |
3390 | * Which adapter | |
3391 | */ | |
3392 | if( (adapno = GETADAP(uioc.adapno)) >= hba_count ) | |
3393 | return (-ENODEV); | |
3394 | ||
3395 | adapter = hba_soft_state[adapno]; | |
3396 | ||
3397 | ustats = uioc.uioc_uaddr; | |
3398 | ||
3399 | if( copy_from_user(&num_ldrv, &ustats->num_ldrv, sizeof(int)) ) | |
3400 | return (-EFAULT); | |
3401 | ||
3402 | /* | |
3403 | * Check for the validity of the logical drive number | |
3404 | */ | |
3405 | if( num_ldrv >= MAX_LOGICAL_DRIVES_40LD ) return -EINVAL; | |
3406 | ||
3407 | if( copy_to_user(ustats->nreads, adapter->nreads, | |
3408 | num_ldrv*sizeof(u32)) ) | |
3409 | return -EFAULT; | |
3410 | ||
3411 | if( copy_to_user(ustats->nreadblocks, adapter->nreadblocks, | |
3412 | num_ldrv*sizeof(u32)) ) | |
3413 | return -EFAULT; | |
3414 | ||
3415 | if( copy_to_user(ustats->nwrites, adapter->nwrites, | |
3416 | num_ldrv*sizeof(u32)) ) | |
3417 | return -EFAULT; | |
3418 | ||
3419 | if( copy_to_user(ustats->nwriteblocks, adapter->nwriteblocks, | |
3420 | num_ldrv*sizeof(u32)) ) | |
3421 | return -EFAULT; | |
3422 | ||
3423 | if( copy_to_user(ustats->rd_errors, adapter->rd_errors, | |
3424 | num_ldrv*sizeof(u32)) ) | |
3425 | return -EFAULT; | |
3426 | ||
3427 | if( copy_to_user(ustats->wr_errors, adapter->wr_errors, | |
3428 | num_ldrv*sizeof(u32)) ) | |
3429 | return -EFAULT; | |
3430 | ||
3431 | return 0; | |
3432 | ||
3433 | #endif | |
3434 | case MBOX_CMD: | |
3435 | ||
3436 | /* | |
3437 | * Which adapter | |
3438 | */ | |
3439 | if( (adapno = GETADAP(uioc.adapno)) >= hba_count ) | |
3440 | return (-ENODEV); | |
3441 | ||
3442 | adapter = hba_soft_state[adapno]; | |
3443 | ||
3444 | /* | |
3445 | * Deletion of logical drive is a special case. The adapter | |
3446 | * should be quiescent before this command is issued. | |
3447 | */ | |
3448 | if( uioc.uioc_rmbox[0] == FC_DEL_LOGDRV && | |
3449 | uioc.uioc_rmbox[2] == OP_DEL_LOGDRV ) { | |
3450 | ||
3451 | /* | |
3452 | * Do we support this feature | |
3453 | */ | |
3454 | if( !adapter->support_random_del ) { | |
3455 | printk(KERN_WARNING "megaraid: logdrv "); | |
3456 | printk("delete on non-supporting F/W.\n"); | |
3457 | ||
3458 | return (-EINVAL); | |
3459 | } | |
3460 | ||
3461 | rval = mega_del_logdrv( adapter, uioc.uioc_rmbox[3] ); | |
3462 | ||
3463 | if( rval == 0 ) { | |
3464 | memset(&mc, 0, sizeof(megacmd_t)); | |
3465 | ||
3466 | mc.status = rval; | |
3467 | ||
3468 | rval = mega_n_to_m((void __user *)arg, &mc); | |
3469 | } | |
3470 | ||
3471 | return rval; | |
3472 | } | |
3473 | /* | |
3474 | * This interface only support the regular passthru commands. | |
3475 | * Reject extended passthru and 64-bit passthru | |
3476 | */ | |
3477 | if( uioc.uioc_rmbox[0] == MEGA_MBOXCMD_PASSTHRU64 || | |
3478 | uioc.uioc_rmbox[0] == MEGA_MBOXCMD_EXTPTHRU ) { | |
3479 | ||
3480 | printk(KERN_WARNING "megaraid: rejected passthru.\n"); | |
3481 | ||
3482 | return (-EINVAL); | |
3483 | } | |
3484 | ||
3485 | /* | |
3486 | * For all internal commands, the buffer must be allocated in | |
3487 | * <4GB address range | |
3488 | */ | |
3489 | if( make_local_pdev(adapter, &pdev) != 0 ) | |
3490 | return -EIO; | |
3491 | ||
3492 | /* Is it a passthru command or a DCMD */ | |
3493 | if( uioc.uioc_rmbox[0] == MEGA_MBOXCMD_PASSTHRU ) { | |
3494 | /* Passthru commands */ | |
3495 | ||
3496 | pthru = pci_alloc_consistent(pdev, | |
3497 | sizeof(mega_passthru), | |
3498 | &pthru_dma_hndl); | |
3499 | ||
3500 | if( pthru == NULL ) { | |
3501 | free_local_pdev(pdev); | |
3502 | return (-ENOMEM); | |
3503 | } | |
3504 | ||
3505 | /* | |
3506 | * The user passthru structure | |
3507 | */ | |
de5952e9 | 3508 | upthru = (mega_passthru __user *)(unsigned long)MBOX(uioc)->xferaddr; |
1da177e4 LT |
3509 | |
3510 | /* | |
3511 | * Copy in the user passthru here. | |
3512 | */ | |
3513 | if( copy_from_user(pthru, upthru, | |
3514 | sizeof(mega_passthru)) ) { | |
3515 | ||
3516 | pci_free_consistent(pdev, | |
3517 | sizeof(mega_passthru), pthru, | |
3518 | pthru_dma_hndl); | |
3519 | ||
3520 | free_local_pdev(pdev); | |
3521 | ||
3522 | return (-EFAULT); | |
3523 | } | |
3524 | ||
3525 | /* | |
3526 | * Is there a data transfer | |
3527 | */ | |
3528 | if( pthru->dataxferlen ) { | |
3529 | data = pci_alloc_consistent(pdev, | |
3530 | pthru->dataxferlen, | |
3531 | &data_dma_hndl); | |
3532 | ||
3533 | if( data == NULL ) { | |
3534 | pci_free_consistent(pdev, | |
3535 | sizeof(mega_passthru), | |
3536 | pthru, | |
3537 | pthru_dma_hndl); | |
3538 | ||
3539 | free_local_pdev(pdev); | |
3540 | ||
3541 | return (-ENOMEM); | |
3542 | } | |
3543 | ||
3544 | /* | |
3545 | * Save the user address and point the kernel | |
3546 | * address at just allocated memory | |
3547 | */ | |
3548 | uxferaddr = pthru->dataxferaddr; | |
3549 | pthru->dataxferaddr = data_dma_hndl; | |
3550 | } | |
3551 | ||
3552 | ||
3553 | /* | |
3554 | * Is data coming down-stream | |
3555 | */ | |
3556 | if( pthru->dataxferlen && (uioc.flags & UIOC_WR) ) { | |
3557 | /* | |
3558 | * Get the user data | |
3559 | */ | |
de5952e9 | 3560 | if( copy_from_user(data, (char __user *)(unsigned long) uxferaddr, |
1da177e4 LT |
3561 | pthru->dataxferlen) ) { |
3562 | rval = (-EFAULT); | |
3563 | goto freemem_and_return; | |
3564 | } | |
3565 | } | |
3566 | ||
3567 | memset(&mc, 0, sizeof(megacmd_t)); | |
3568 | ||
3569 | mc.cmd = MEGA_MBOXCMD_PASSTHRU; | |
3570 | mc.xferaddr = (u32)pthru_dma_hndl; | |
3571 | ||
3572 | /* | |
3573 | * Issue the command | |
3574 | */ | |
cb0258a2 | 3575 | mega_internal_command(adapter, &mc, pthru); |
1da177e4 LT |
3576 | |
3577 | rval = mega_n_to_m((void __user *)arg, &mc); | |
3578 | ||
3579 | if( rval ) goto freemem_and_return; | |
3580 | ||
3581 | ||
3582 | /* | |
3583 | * Is data going up-stream | |
3584 | */ | |
3585 | if( pthru->dataxferlen && (uioc.flags & UIOC_RD) ) { | |
de5952e9 | 3586 | if( copy_to_user((char __user *)(unsigned long) uxferaddr, data, |
1da177e4 LT |
3587 | pthru->dataxferlen) ) { |
3588 | rval = (-EFAULT); | |
3589 | } | |
3590 | } | |
3591 | ||
3592 | /* | |
3593 | * Send the request sense data also, irrespective of | |
3594 | * whether the user has asked for it or not. | |
3595 | */ | |
2d2f8d59 JJ |
3596 | if (copy_to_user(upthru->reqsensearea, |
3597 | pthru->reqsensearea, 14)) | |
3598 | rval = -EFAULT; | |
1da177e4 LT |
3599 | |
3600 | freemem_and_return: | |
3601 | if( pthru->dataxferlen ) { | |
3602 | pci_free_consistent(pdev, | |
3603 | pthru->dataxferlen, data, | |
3604 | data_dma_hndl); | |
3605 | } | |
3606 | ||
3607 | pci_free_consistent(pdev, sizeof(mega_passthru), | |
3608 | pthru, pthru_dma_hndl); | |
3609 | ||
3610 | free_local_pdev(pdev); | |
3611 | ||
3612 | return rval; | |
3613 | } | |
3614 | else { | |
3615 | /* DCMD commands */ | |
3616 | ||
3617 | /* | |
3618 | * Is there a data transfer | |
3619 | */ | |
3620 | if( uioc.xferlen ) { | |
3621 | data = pci_alloc_consistent(pdev, | |
3622 | uioc.xferlen, &data_dma_hndl); | |
3623 | ||
3624 | if( data == NULL ) { | |
3625 | free_local_pdev(pdev); | |
3626 | return (-ENOMEM); | |
3627 | } | |
3628 | ||
3629 | uxferaddr = MBOX(uioc)->xferaddr; | |
3630 | } | |
3631 | ||
3632 | /* | |
3633 | * Is data coming down-stream | |
3634 | */ | |
3635 | if( uioc.xferlen && (uioc.flags & UIOC_WR) ) { | |
3636 | /* | |
3637 | * Get the user data | |
3638 | */ | |
de5952e9 | 3639 | if( copy_from_user(data, (char __user *)(unsigned long) uxferaddr, |
1da177e4 LT |
3640 | uioc.xferlen) ) { |
3641 | ||
3642 | pci_free_consistent(pdev, | |
3643 | uioc.xferlen, | |
3644 | data, data_dma_hndl); | |
3645 | ||
3646 | free_local_pdev(pdev); | |
3647 | ||
3648 | return (-EFAULT); | |
3649 | } | |
3650 | } | |
3651 | ||
3652 | memcpy(&mc, MBOX(uioc), sizeof(megacmd_t)); | |
3653 | ||
3654 | mc.xferaddr = (u32)data_dma_hndl; | |
3655 | ||
3656 | /* | |
3657 | * Issue the command | |
3658 | */ | |
cb0258a2 | 3659 | mega_internal_command(adapter, &mc, NULL); |
1da177e4 LT |
3660 | |
3661 | rval = mega_n_to_m((void __user *)arg, &mc); | |
3662 | ||
3663 | if( rval ) { | |
3664 | if( uioc.xferlen ) { | |
3665 | pci_free_consistent(pdev, | |
3666 | uioc.xferlen, data, | |
3667 | data_dma_hndl); | |
3668 | } | |
3669 | ||
3670 | free_local_pdev(pdev); | |
3671 | ||
3672 | return rval; | |
3673 | } | |
3674 | ||
3675 | /* | |
3676 | * Is data going up-stream | |
3677 | */ | |
3678 | if( uioc.xferlen && (uioc.flags & UIOC_RD) ) { | |
de5952e9 | 3679 | if( copy_to_user((char __user *)(unsigned long) uxferaddr, data, |
1da177e4 LT |
3680 | uioc.xferlen) ) { |
3681 | ||
3682 | rval = (-EFAULT); | |
3683 | } | |
3684 | } | |
3685 | ||
3686 | if( uioc.xferlen ) { | |
3687 | pci_free_consistent(pdev, | |
3688 | uioc.xferlen, data, | |
3689 | data_dma_hndl); | |
3690 | } | |
3691 | ||
3692 | free_local_pdev(pdev); | |
3693 | ||
3694 | return rval; | |
3695 | } | |
3696 | ||
3697 | default: | |
3698 | return (-EINVAL); | |
3699 | } | |
3700 | ||
3701 | return 0; | |
3702 | } | |
3703 | ||
f4927c45 AB |
3704 | static long |
3705 | megadev_unlocked_ioctl(struct file *filep, unsigned int cmd, unsigned long arg) | |
3706 | { | |
3707 | int ret; | |
3708 | ||
c45d15d2 | 3709 | mutex_lock(&megadev_mutex); |
f4927c45 | 3710 | ret = megadev_ioctl(filep, cmd, arg); |
c45d15d2 | 3711 | mutex_unlock(&megadev_mutex); |
f4927c45 AB |
3712 | |
3713 | return ret; | |
3714 | } | |
3715 | ||
1da177e4 LT |
3716 | /** |
3717 | * mega_m_to_n() | |
3718 | * @arg - user address | |
3719 | * @uioc - new ioctl structure | |
3720 | * | |
3721 | * A thin layer to convert older mimd interface ioctl structure to NIT ioctl | |
3722 | * structure | |
3723 | * | |
3724 | * Converts the older mimd ioctl structure to newer NIT structure | |
3725 | */ | |
3726 | static int | |
3727 | mega_m_to_n(void __user *arg, nitioctl_t *uioc) | |
3728 | { | |
3729 | struct uioctl_t uioc_mimd; | |
3730 | char signature[8] = {0}; | |
3731 | u8 opcode; | |
3732 | u8 subopcode; | |
3733 | ||
3734 | ||
3735 | /* | |
3736 | * check is the application conforms to NIT. We do not have to do much | |
3737 | * in that case. | |
3738 | * We exploit the fact that the signature is stored in the very | |
25985edc | 3739 | * beginning of the structure. |
1da177e4 LT |
3740 | */ |
3741 | ||
3742 | if( copy_from_user(signature, arg, 7) ) | |
3743 | return (-EFAULT); | |
3744 | ||
3745 | if( memcmp(signature, "MEGANIT", 7) == 0 ) { | |
3746 | ||
3747 | /* | |
3748 | * NOTE NOTE: The nit ioctl is still under flux because of | |
3749 | * change of mailbox definition, in HPE. No applications yet | |
3750 | * use this interface and let's not have applications use this | |
3751 | * interface till the new specifitions are in place. | |
3752 | */ | |
3753 | return -EINVAL; | |
3754 | #if 0 | |
3755 | if( copy_from_user(uioc, arg, sizeof(nitioctl_t)) ) | |
3756 | return (-EFAULT); | |
3757 | return 0; | |
3758 | #endif | |
3759 | } | |
3760 | ||
3761 | /* | |
3762 | * Else assume we have mimd uioctl_t as arg. Convert to nitioctl_t | |
3763 | * | |
3764 | * Get the user ioctl structure | |
3765 | */ | |
3766 | if( copy_from_user(&uioc_mimd, arg, sizeof(struct uioctl_t)) ) | |
3767 | return (-EFAULT); | |
3768 | ||
3769 | ||
3770 | /* | |
3771 | * Get the opcode and subopcode for the commands | |
3772 | */ | |
3773 | opcode = uioc_mimd.ui.fcs.opcode; | |
3774 | subopcode = uioc_mimd.ui.fcs.subopcode; | |
3775 | ||
3776 | switch (opcode) { | |
3777 | case 0x82: | |
3778 | ||
3779 | switch (subopcode) { | |
3780 | ||
3781 | case MEGAIOC_QDRVRVER: /* Query driver version */ | |
3782 | uioc->opcode = GET_DRIVER_VER; | |
3783 | uioc->uioc_uaddr = uioc_mimd.data; | |
3784 | break; | |
3785 | ||
3786 | case MEGAIOC_QNADAP: /* Get # of adapters */ | |
3787 | uioc->opcode = GET_N_ADAP; | |
3788 | uioc->uioc_uaddr = uioc_mimd.data; | |
3789 | break; | |
3790 | ||
3791 | case MEGAIOC_QADAPINFO: /* Get adapter information */ | |
3792 | uioc->opcode = GET_ADAP_INFO; | |
3793 | uioc->adapno = uioc_mimd.ui.fcs.adapno; | |
3794 | uioc->uioc_uaddr = uioc_mimd.data; | |
3795 | break; | |
3796 | ||
3797 | default: | |
3798 | return(-EINVAL); | |
3799 | } | |
3800 | ||
3801 | break; | |
3802 | ||
3803 | ||
3804 | case 0x81: | |
3805 | ||
3806 | uioc->opcode = MBOX_CMD; | |
3807 | uioc->adapno = uioc_mimd.ui.fcs.adapno; | |
3808 | ||
3809 | memcpy(uioc->uioc_rmbox, uioc_mimd.mbox, 18); | |
3810 | ||
3811 | uioc->xferlen = uioc_mimd.ui.fcs.length; | |
3812 | ||
3813 | if( uioc_mimd.outlen ) uioc->flags = UIOC_RD; | |
3814 | if( uioc_mimd.inlen ) uioc->flags |= UIOC_WR; | |
3815 | ||
3816 | break; | |
3817 | ||
3818 | case 0x80: | |
3819 | ||
3820 | uioc->opcode = MBOX_CMD; | |
3821 | uioc->adapno = uioc_mimd.ui.fcs.adapno; | |
3822 | ||
3823 | memcpy(uioc->uioc_rmbox, uioc_mimd.mbox, 18); | |
3824 | ||
3825 | /* | |
3826 | * Choose the xferlen bigger of input and output data | |
3827 | */ | |
3828 | uioc->xferlen = uioc_mimd.outlen > uioc_mimd.inlen ? | |
3829 | uioc_mimd.outlen : uioc_mimd.inlen; | |
3830 | ||
3831 | if( uioc_mimd.outlen ) uioc->flags = UIOC_RD; | |
3832 | if( uioc_mimd.inlen ) uioc->flags |= UIOC_WR; | |
3833 | ||
3834 | break; | |
3835 | ||
3836 | default: | |
3837 | return (-EINVAL); | |
3838 | ||
3839 | } | |
3840 | ||
3841 | return 0; | |
3842 | } | |
3843 | ||
3844 | /* | |
3845 | * mega_n_to_m() | |
3846 | * @arg - user address | |
3847 | * @mc - mailbox command | |
3848 | * | |
3849 | * Updates the status information to the application, depending on application | |
3850 | * conforms to older mimd ioctl interface or newer NIT ioctl interface | |
3851 | */ | |
3852 | static int | |
3853 | mega_n_to_m(void __user *arg, megacmd_t *mc) | |
3854 | { | |
3855 | nitioctl_t __user *uiocp; | |
3856 | megacmd_t __user *umc; | |
3857 | mega_passthru __user *upthru; | |
3858 | struct uioctl_t __user *uioc_mimd; | |
3859 | char signature[8] = {0}; | |
3860 | ||
3861 | /* | |
3862 | * check is the application conforms to NIT. | |
3863 | */ | |
3864 | if( copy_from_user(signature, arg, 7) ) | |
3865 | return -EFAULT; | |
3866 | ||
3867 | if( memcmp(signature, "MEGANIT", 7) == 0 ) { | |
3868 | ||
3869 | uiocp = arg; | |
3870 | ||
3871 | if( put_user(mc->status, (u8 __user *)&MBOX_P(uiocp)->status) ) | |
3872 | return (-EFAULT); | |
3873 | ||
3874 | if( mc->cmd == MEGA_MBOXCMD_PASSTHRU ) { | |
3875 | ||
3876 | umc = MBOX_P(uiocp); | |
3877 | ||
3878 | if (get_user(upthru, (mega_passthru __user * __user *)&umc->xferaddr)) | |
3879 | return -EFAULT; | |
3880 | ||
3881 | if( put_user(mc->status, (u8 __user *)&upthru->scsistatus)) | |
3882 | return (-EFAULT); | |
3883 | } | |
3884 | } | |
3885 | else { | |
3886 | uioc_mimd = arg; | |
3887 | ||
3888 | if( put_user(mc->status, (u8 __user *)&uioc_mimd->mbox[17]) ) | |
3889 | return (-EFAULT); | |
3890 | ||
3891 | if( mc->cmd == MEGA_MBOXCMD_PASSTHRU ) { | |
3892 | ||
3893 | umc = (megacmd_t __user *)uioc_mimd->mbox; | |
3894 | ||
3895 | if (get_user(upthru, (mega_passthru __user * __user *)&umc->xferaddr)) | |
3896 | return (-EFAULT); | |
3897 | ||
3898 | if( put_user(mc->status, (u8 __user *)&upthru->scsistatus) ) | |
3899 | return (-EFAULT); | |
3900 | } | |
3901 | } | |
3902 | ||
3903 | return 0; | |
3904 | } | |
3905 | ||
3906 | ||
3907 | /* | |
3908 | * MEGARAID 'FW' commands. | |
3909 | */ | |
3910 | ||
3911 | /** | |
3912 | * mega_is_bios_enabled() | |
3913 | * @adapter - pointer to our soft state | |
3914 | * | |
3915 | * issue command to find out if the BIOS is enabled for this controller | |
3916 | */ | |
3917 | static int | |
3918 | mega_is_bios_enabled(adapter_t *adapter) | |
3919 | { | |
3920 | unsigned char raw_mbox[sizeof(struct mbox_out)]; | |
3921 | mbox_t *mbox; | |
3922 | int ret; | |
3923 | ||
3924 | mbox = (mbox_t *)raw_mbox; | |
3925 | ||
3926 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); | |
3927 | ||
3928 | memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE); | |
3929 | ||
3930 | mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle; | |
3931 | ||
3932 | raw_mbox[0] = IS_BIOS_ENABLED; | |
3933 | raw_mbox[2] = GET_BIOS; | |
3934 | ||
3935 | ||
3936 | ret = issue_scb_block(adapter, raw_mbox); | |
3937 | ||
3938 | return *(char *)adapter->mega_buffer; | |
3939 | } | |
3940 | ||
3941 | ||
3942 | /** | |
3943 | * mega_enum_raid_scsi() | |
3944 | * @adapter - pointer to our soft state | |
3945 | * | |
3946 | * Find out what channels are RAID/SCSI. This information is used to | |
3947 | * differentiate the virtual channels and physical channels and to support | |
3948 | * ROMB feature and non-disk devices. | |
3949 | */ | |
3950 | static void | |
3951 | mega_enum_raid_scsi(adapter_t *adapter) | |
3952 | { | |
3953 | unsigned char raw_mbox[sizeof(struct mbox_out)]; | |
3954 | mbox_t *mbox; | |
3955 | int i; | |
3956 | ||
3957 | mbox = (mbox_t *)raw_mbox; | |
3958 | ||
3959 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); | |
3960 | ||
3961 | /* | |
3962 | * issue command to find out what channels are raid/scsi | |
3963 | */ | |
3964 | raw_mbox[0] = CHNL_CLASS; | |
3965 | raw_mbox[2] = GET_CHNL_CLASS; | |
3966 | ||
3967 | memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE); | |
3968 | ||
3969 | mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle; | |
3970 | ||
3971 | /* | |
3972 | * Non-ROMB firmware fail this command, so all channels | |
3973 | * must be shown RAID | |
3974 | */ | |
3975 | adapter->mega_ch_class = 0xFF; | |
3976 | ||
3977 | if(!issue_scb_block(adapter, raw_mbox)) { | |
3978 | adapter->mega_ch_class = *((char *)adapter->mega_buffer); | |
3979 | ||
3980 | } | |
3981 | ||
3982 | for( i = 0; i < adapter->product_info.nchannels; i++ ) { | |
3983 | if( (adapter->mega_ch_class >> i) & 0x01 ) { | |
3984 | printk(KERN_INFO "megaraid: channel[%d] is raid.\n", | |
3985 | i); | |
3986 | } | |
3987 | else { | |
3988 | printk(KERN_INFO "megaraid: channel[%d] is scsi.\n", | |
3989 | i); | |
3990 | } | |
3991 | } | |
3992 | ||
3993 | return; | |
3994 | } | |
3995 | ||
3996 | ||
3997 | /** | |
3998 | * mega_get_boot_drv() | |
3999 | * @adapter - pointer to our soft state | |
4000 | * | |
4001 | * Find out which device is the boot device. Note, any logical drive or any | |
4002 | * phyical device (e.g., a CDROM) can be designated as a boot device. | |
4003 | */ | |
4004 | static void | |
4005 | mega_get_boot_drv(adapter_t *adapter) | |
4006 | { | |
4007 | struct private_bios_data *prv_bios_data; | |
4008 | unsigned char raw_mbox[sizeof(struct mbox_out)]; | |
4009 | mbox_t *mbox; | |
4010 | u16 cksum = 0; | |
4011 | u8 *cksum_p; | |
4012 | u8 boot_pdrv; | |
4013 | int i; | |
4014 | ||
4015 | mbox = (mbox_t *)raw_mbox; | |
4016 | ||
4017 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); | |
4018 | ||
4019 | raw_mbox[0] = BIOS_PVT_DATA; | |
4020 | raw_mbox[2] = GET_BIOS_PVT_DATA; | |
4021 | ||
4022 | memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE); | |
4023 | ||
4024 | mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle; | |
4025 | ||
4026 | adapter->boot_ldrv_enabled = 0; | |
4027 | adapter->boot_ldrv = 0; | |
4028 | ||
4029 | adapter->boot_pdrv_enabled = 0; | |
4030 | adapter->boot_pdrv_ch = 0; | |
4031 | adapter->boot_pdrv_tgt = 0; | |
4032 | ||
4033 | if(issue_scb_block(adapter, raw_mbox) == 0) { | |
4034 | prv_bios_data = | |
4035 | (struct private_bios_data *)adapter->mega_buffer; | |
4036 | ||
4037 | cksum = 0; | |
4038 | cksum_p = (char *)prv_bios_data; | |
4039 | for (i = 0; i < 14; i++ ) { | |
4040 | cksum += (u16)(*cksum_p++); | |
4041 | } | |
4042 | ||
4043 | if (prv_bios_data->cksum == (u16)(0-cksum) ) { | |
4044 | ||
4045 | /* | |
4046 | * If MSB is set, a physical drive is set as boot | |
4047 | * device | |
4048 | */ | |
4049 | if( prv_bios_data->boot_drv & 0x80 ) { | |
4050 | adapter->boot_pdrv_enabled = 1; | |
4051 | boot_pdrv = prv_bios_data->boot_drv & 0x7F; | |
4052 | adapter->boot_pdrv_ch = boot_pdrv / 16; | |
4053 | adapter->boot_pdrv_tgt = boot_pdrv % 16; | |
4054 | } | |
4055 | else { | |
4056 | adapter->boot_ldrv_enabled = 1; | |
4057 | adapter->boot_ldrv = prv_bios_data->boot_drv; | |
4058 | } | |
4059 | } | |
4060 | } | |
4061 | ||
4062 | } | |
4063 | ||
4064 | /** | |
4065 | * mega_support_random_del() | |
4066 | * @adapter - pointer to our soft state | |
4067 | * | |
4068 | * Find out if this controller supports random deletion and addition of | |
4069 | * logical drives | |
4070 | */ | |
4071 | static int | |
4072 | mega_support_random_del(adapter_t *adapter) | |
4073 | { | |
4074 | unsigned char raw_mbox[sizeof(struct mbox_out)]; | |
4075 | mbox_t *mbox; | |
4076 | int rval; | |
4077 | ||
4078 | mbox = (mbox_t *)raw_mbox; | |
4079 | ||
4080 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); | |
4081 | ||
4082 | /* | |
4083 | * issue command | |
4084 | */ | |
4085 | raw_mbox[0] = FC_DEL_LOGDRV; | |
4086 | raw_mbox[2] = OP_SUP_DEL_LOGDRV; | |
4087 | ||
4088 | rval = issue_scb_block(adapter, raw_mbox); | |
4089 | ||
4090 | return !rval; | |
4091 | } | |
4092 | ||
4093 | ||
4094 | /** | |
4095 | * mega_support_ext_cdb() | |
4096 | * @adapter - pointer to our soft state | |
4097 | * | |
4098 | * Find out if this firmware support cdblen > 10 | |
4099 | */ | |
4100 | static int | |
4101 | mega_support_ext_cdb(adapter_t *adapter) | |
4102 | { | |
4103 | unsigned char raw_mbox[sizeof(struct mbox_out)]; | |
4104 | mbox_t *mbox; | |
4105 | int rval; | |
4106 | ||
4107 | mbox = (mbox_t *)raw_mbox; | |
4108 | ||
4109 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); | |
4110 | /* | |
4111 | * issue command to find out if controller supports extended CDBs. | |
4112 | */ | |
4113 | raw_mbox[0] = 0xA4; | |
4114 | raw_mbox[2] = 0x16; | |
4115 | ||
4116 | rval = issue_scb_block(adapter, raw_mbox); | |
4117 | ||
4118 | return !rval; | |
4119 | } | |
4120 | ||
4121 | ||
4122 | /** | |
4123 | * mega_del_logdrv() | |
4124 | * @adapter - pointer to our soft state | |
4125 | * @logdrv - logical drive to be deleted | |
4126 | * | |
4127 | * Delete the specified logical drive. It is the responsibility of the user | |
4128 | * app to let the OS know about this operation. | |
4129 | */ | |
4130 | static int | |
4131 | mega_del_logdrv(adapter_t *adapter, int logdrv) | |
4132 | { | |
4133 | unsigned long flags; | |
4134 | scb_t *scb; | |
4135 | int rval; | |
4136 | ||
4137 | /* | |
4138 | * Stop sending commands to the controller, queue them internally. | |
4139 | * When deletion is complete, ISR will flush the queue. | |
4140 | */ | |
4141 | atomic_set(&adapter->quiescent, 1); | |
4142 | ||
4143 | /* | |
4144 | * Wait till all the issued commands are complete and there are no | |
4145 | * commands in the pending queue | |
4146 | */ | |
4147 | while (atomic_read(&adapter->pend_cmds) > 0 || | |
4148 | !list_empty(&adapter->pending_list)) | |
4149 | msleep(1000); /* sleep for 1s */ | |
4150 | ||
4151 | rval = mega_do_del_logdrv(adapter, logdrv); | |
4152 | ||
4153 | spin_lock_irqsave(&adapter->lock, flags); | |
4154 | ||
4155 | /* | |
4156 | * If delete operation was successful, add 0x80 to the logical drive | |
4157 | * ids for commands in the pending queue. | |
4158 | */ | |
4159 | if (adapter->read_ldidmap) { | |
4160 | struct list_head *pos; | |
4161 | list_for_each(pos, &adapter->pending_list) { | |
4162 | scb = list_entry(pos, scb_t, list); | |
4163 | if (scb->pthru->logdrv < 0x80 ) | |
4164 | scb->pthru->logdrv += 0x80; | |
4165 | } | |
4166 | } | |
4167 | ||
4168 | atomic_set(&adapter->quiescent, 0); | |
4169 | ||
4170 | mega_runpendq(adapter); | |
4171 | ||
4172 | spin_unlock_irqrestore(&adapter->lock, flags); | |
4173 | ||
4174 | return rval; | |
4175 | } | |
4176 | ||
4177 | ||
4178 | static int | |
4179 | mega_do_del_logdrv(adapter_t *adapter, int logdrv) | |
4180 | { | |
4181 | megacmd_t mc; | |
4182 | int rval; | |
4183 | ||
4184 | memset( &mc, 0, sizeof(megacmd_t)); | |
4185 | ||
4186 | mc.cmd = FC_DEL_LOGDRV; | |
4187 | mc.opcode = OP_DEL_LOGDRV; | |
4188 | mc.subopcode = logdrv; | |
4189 | ||
cb0258a2 | 4190 | rval = mega_internal_command(adapter, &mc, NULL); |
1da177e4 LT |
4191 | |
4192 | /* log this event */ | |
4193 | if(rval) { | |
4194 | printk(KERN_WARNING "megaraid: Delete LD-%d failed.", logdrv); | |
4195 | return rval; | |
4196 | } | |
4197 | ||
4198 | /* | |
4199 | * After deleting first logical drive, the logical drives must be | |
4200 | * addressed by adding 0x80 to the logical drive id. | |
4201 | */ | |
4202 | adapter->read_ldidmap = 1; | |
4203 | ||
4204 | return rval; | |
4205 | } | |
4206 | ||
4207 | ||
4208 | /** | |
4209 | * mega_get_max_sgl() | |
4210 | * @adapter - pointer to our soft state | |
4211 | * | |
4212 | * Find out the maximum number of scatter-gather elements supported by this | |
4213 | * version of the firmware | |
4214 | */ | |
4215 | static void | |
4216 | mega_get_max_sgl(adapter_t *adapter) | |
4217 | { | |
4218 | unsigned char raw_mbox[sizeof(struct mbox_out)]; | |
4219 | mbox_t *mbox; | |
4220 | ||
4221 | mbox = (mbox_t *)raw_mbox; | |
4222 | ||
4223 | memset(mbox, 0, sizeof(raw_mbox)); | |
4224 | ||
4225 | memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE); | |
4226 | ||
4227 | mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle; | |
4228 | ||
4229 | raw_mbox[0] = MAIN_MISC_OPCODE; | |
4230 | raw_mbox[2] = GET_MAX_SG_SUPPORT; | |
4231 | ||
4232 | ||
4233 | if( issue_scb_block(adapter, raw_mbox) ) { | |
4234 | /* | |
4235 | * f/w does not support this command. Choose the default value | |
4236 | */ | |
4237 | adapter->sglen = MIN_SGLIST; | |
4238 | } | |
4239 | else { | |
4240 | adapter->sglen = *((char *)adapter->mega_buffer); | |
4241 | ||
4242 | /* | |
4243 | * Make sure this is not more than the resources we are | |
4244 | * planning to allocate | |
4245 | */ | |
4246 | if ( adapter->sglen > MAX_SGLIST ) | |
4247 | adapter->sglen = MAX_SGLIST; | |
4248 | } | |
4249 | ||
4250 | return; | |
4251 | } | |
4252 | ||
4253 | ||
4254 | /** | |
4255 | * mega_support_cluster() | |
4256 | * @adapter - pointer to our soft state | |
4257 | * | |
4258 | * Find out if this firmware support cluster calls. | |
4259 | */ | |
4260 | static int | |
4261 | mega_support_cluster(adapter_t *adapter) | |
4262 | { | |
4263 | unsigned char raw_mbox[sizeof(struct mbox_out)]; | |
4264 | mbox_t *mbox; | |
4265 | ||
4266 | mbox = (mbox_t *)raw_mbox; | |
4267 | ||
4268 | memset(mbox, 0, sizeof(raw_mbox)); | |
4269 | ||
4270 | memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE); | |
4271 | ||
4272 | mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle; | |
4273 | ||
4274 | /* | |
4275 | * Try to get the initiator id. This command will succeed iff the | |
4276 | * clustering is available on this HBA. | |
4277 | */ | |
4278 | raw_mbox[0] = MEGA_GET_TARGET_ID; | |
4279 | ||
4280 | if( issue_scb_block(adapter, raw_mbox) == 0 ) { | |
4281 | ||
4282 | /* | |
4283 | * Cluster support available. Get the initiator target id. | |
4284 | * Tell our id to mid-layer too. | |
4285 | */ | |
4286 | adapter->this_id = *(u32 *)adapter->mega_buffer; | |
4287 | adapter->host->this_id = adapter->this_id; | |
4288 | ||
4289 | return 1; | |
4290 | } | |
4291 | ||
4292 | return 0; | |
4293 | } | |
4294 | ||
84a3c97b | 4295 | #ifdef CONFIG_PROC_FS |
1da177e4 LT |
4296 | /** |
4297 | * mega_adapinq() | |
4298 | * @adapter - pointer to our soft state | |
4299 | * @dma_handle - DMA address of the buffer | |
4300 | * | |
8e572bab | 4301 | * Issue internal commands while interrupts are available. |
1da177e4 LT |
4302 | * We only issue direct mailbox commands from within the driver. ioctl() |
4303 | * interface using these routines can issue passthru commands. | |
4304 | */ | |
4305 | static int | |
4306 | mega_adapinq(adapter_t *adapter, dma_addr_t dma_handle) | |
4307 | { | |
4308 | megacmd_t mc; | |
4309 | ||
4310 | memset(&mc, 0, sizeof(megacmd_t)); | |
4311 | ||
4312 | if( adapter->flag & BOARD_40LD ) { | |
4313 | mc.cmd = FC_NEW_CONFIG; | |
4314 | mc.opcode = NC_SUBOP_ENQUIRY3; | |
4315 | mc.subopcode = ENQ3_GET_SOLICITED_FULL; | |
4316 | } | |
4317 | else { | |
4318 | mc.cmd = MEGA_MBOXCMD_ADPEXTINQ; | |
4319 | } | |
4320 | ||
4321 | mc.xferaddr = (u32)dma_handle; | |
4322 | ||
cb0258a2 | 4323 | if ( mega_internal_command(adapter, &mc, NULL) != 0 ) { |
1da177e4 LT |
4324 | return -1; |
4325 | } | |
4326 | ||
4327 | return 0; | |
4328 | } | |
4329 | ||
4330 | ||
4331 | /** mega_internal_dev_inquiry() | |
4332 | * @adapter - pointer to our soft state | |
4333 | * @ch - channel for this device | |
4334 | * @tgt - ID of this device | |
4335 | * @buf_dma_handle - DMA address of the buffer | |
4336 | * | |
4337 | * Issue the scsi inquiry for the specified device. | |
4338 | */ | |
4339 | static int | |
4340 | mega_internal_dev_inquiry(adapter_t *adapter, u8 ch, u8 tgt, | |
4341 | dma_addr_t buf_dma_handle) | |
4342 | { | |
4343 | mega_passthru *pthru; | |
4344 | dma_addr_t pthru_dma_handle; | |
4345 | megacmd_t mc; | |
4346 | int rval; | |
4347 | struct pci_dev *pdev; | |
4348 | ||
4349 | ||
4350 | /* | |
4351 | * For all internal commands, the buffer must be allocated in <4GB | |
4352 | * address range | |
4353 | */ | |
4354 | if( make_local_pdev(adapter, &pdev) != 0 ) return -1; | |
4355 | ||
4356 | pthru = pci_alloc_consistent(pdev, sizeof(mega_passthru), | |
4357 | &pthru_dma_handle); | |
4358 | ||
4359 | if( pthru == NULL ) { | |
4360 | free_local_pdev(pdev); | |
4361 | return -1; | |
4362 | } | |
4363 | ||
4364 | pthru->timeout = 2; | |
4365 | pthru->ars = 1; | |
4366 | pthru->reqsenselen = 14; | |
4367 | pthru->islogical = 0; | |
4368 | ||
4369 | pthru->channel = (adapter->flag & BOARD_40LD) ? 0 : ch; | |
4370 | ||
4371 | pthru->target = (adapter->flag & BOARD_40LD) ? (ch << 4)|tgt : tgt; | |
4372 | ||
4373 | pthru->cdblen = 6; | |
4374 | ||
4375 | pthru->cdb[0] = INQUIRY; | |
4376 | pthru->cdb[1] = 0; | |
4377 | pthru->cdb[2] = 0; | |
4378 | pthru->cdb[3] = 0; | |
4379 | pthru->cdb[4] = 255; | |
4380 | pthru->cdb[5] = 0; | |
4381 | ||
4382 | ||
4383 | pthru->dataxferaddr = (u32)buf_dma_handle; | |
4384 | pthru->dataxferlen = 256; | |
4385 | ||
4386 | memset(&mc, 0, sizeof(megacmd_t)); | |
4387 | ||
4388 | mc.cmd = MEGA_MBOXCMD_PASSTHRU; | |
4389 | mc.xferaddr = (u32)pthru_dma_handle; | |
4390 | ||
cb0258a2 | 4391 | rval = mega_internal_command(adapter, &mc, pthru); |
1da177e4 LT |
4392 | |
4393 | pci_free_consistent(pdev, sizeof(mega_passthru), pthru, | |
4394 | pthru_dma_handle); | |
4395 | ||
4396 | free_local_pdev(pdev); | |
4397 | ||
4398 | return rval; | |
4399 | } | |
84a3c97b | 4400 | #endif |
1da177e4 LT |
4401 | |
4402 | /** | |
4403 | * mega_internal_command() | |
4404 | * @adapter - pointer to our soft state | |
1da177e4 LT |
4405 | * @mc - the mailbox command |
4406 | * @pthru - Passthru structure for DCDB commands | |
4407 | * | |
4408 | * Issue the internal commands in interrupt mode. | |
4409 | * The last argument is the address of the passthru structure if the command | |
4410 | * to be fired is a passthru command | |
4411 | * | |
4412 | * lockscope specifies whether the caller has already acquired the lock. Of | |
4413 | * course, the caller must know which lock we are talking about. | |
4414 | * | |
4415 | * Note: parameter 'pthru' is null for non-passthru commands. | |
4416 | */ | |
4417 | static int | |
cb0258a2 | 4418 | mega_internal_command(adapter_t *adapter, megacmd_t *mc, mega_passthru *pthru) |
1da177e4 LT |
4419 | { |
4420 | Scsi_Cmnd *scmd; | |
4421 | struct scsi_device *sdev; | |
1da177e4 LT |
4422 | scb_t *scb; |
4423 | int rval; | |
4424 | ||
6b0eea21 FT |
4425 | scmd = scsi_allocate_command(GFP_KERNEL); |
4426 | if (!scmd) | |
4427 | return -ENOMEM; | |
4428 | ||
1da177e4 LT |
4429 | /* |
4430 | * The internal commands share one command id and hence are | |
4431 | * serialized. This is so because we want to reserve maximum number of | |
4432 | * available command ids for the I/O commands. | |
4433 | */ | |
0b950672 | 4434 | mutex_lock(&adapter->int_mtx); |
1da177e4 LT |
4435 | |
4436 | scb = &adapter->int_scb; | |
4437 | memset(scb, 0, sizeof(scb_t)); | |
4438 | ||
bbfbbbc1 | 4439 | sdev = kzalloc(sizeof(struct scsi_device), GFP_KERNEL); |
1da177e4 LT |
4440 | scmd->device = sdev; |
4441 | ||
6b0eea21 FT |
4442 | memset(adapter->int_cdb, 0, sizeof(adapter->int_cdb)); |
4443 | scmd->cmnd = adapter->int_cdb; | |
1da177e4 | 4444 | scmd->device->host = adapter->host; |
3f6270ef | 4445 | scmd->host_scribble = (void *)scb; |
1da177e4 LT |
4446 | scmd->cmnd[0] = MEGA_INTERNAL_CMD; |
4447 | ||
4448 | scb->state |= SCB_ACTIVE; | |
4449 | scb->cmd = scmd; | |
4450 | ||
4451 | memcpy(scb->raw_mbox, mc, sizeof(megacmd_t)); | |
4452 | ||
4453 | /* | |
4454 | * Is it a passthru command | |
4455 | */ | |
4456 | if( mc->cmd == MEGA_MBOXCMD_PASSTHRU ) { | |
4457 | ||
4458 | scb->pthru = pthru; | |
4459 | } | |
4460 | ||
4461 | scb->idx = CMDID_INT_CMDS; | |
4462 | ||
f281233d | 4463 | megaraid_queue_lck(scmd, mega_internal_done); |
1da177e4 | 4464 | |
8d115f84 | 4465 | wait_for_completion(&adapter->int_waitq); |
1da177e4 LT |
4466 | |
4467 | rval = scmd->result; | |
4468 | mc->status = scmd->result; | |
4469 | kfree(sdev); | |
4470 | ||
4471 | /* | |
4472 | * Print a debug message for all failed commands. Applications can use | |
4473 | * this information. | |
4474 | */ | |
4475 | if( scmd->result && trace_level ) { | |
4476 | printk("megaraid: cmd [%x, %x, %x] status:[%x]\n", | |
4477 | mc->cmd, mc->opcode, mc->subopcode, scmd->result); | |
4478 | } | |
4479 | ||
0b950672 | 4480 | mutex_unlock(&adapter->int_mtx); |
1da177e4 | 4481 | |
6b0eea21 FT |
4482 | scsi_free_command(GFP_KERNEL, scmd); |
4483 | ||
1da177e4 LT |
4484 | return rval; |
4485 | } | |
4486 | ||
4487 | ||
4488 | /** | |
4489 | * mega_internal_done() | |
4490 | * @scmd - internal scsi command | |
4491 | * | |
4492 | * Callback routine for internal commands. | |
4493 | */ | |
4494 | static void | |
4495 | mega_internal_done(Scsi_Cmnd *scmd) | |
4496 | { | |
4497 | adapter_t *adapter; | |
4498 | ||
4499 | adapter = (adapter_t *)scmd->device->host->hostdata; | |
4500 | ||
8d115f84 | 4501 | complete(&adapter->int_waitq); |
1da177e4 LT |
4502 | |
4503 | } | |
4504 | ||
4505 | ||
4506 | static struct scsi_host_template megaraid_template = { | |
4507 | .module = THIS_MODULE, | |
4508 | .name = "MegaRAID", | |
3492b328 | 4509 | .proc_name = "megaraid_legacy", |
1da177e4 LT |
4510 | .info = megaraid_info, |
4511 | .queuecommand = megaraid_queue, | |
4512 | .bios_param = megaraid_biosparam, | |
4513 | .max_sectors = MAX_SECTORS_PER_IO, | |
4514 | .can_queue = MAX_COMMANDS, | |
4515 | .this_id = DEFAULT_INITIATOR_ID, | |
4516 | .sg_tablesize = MAX_SGLIST, | |
4517 | .cmd_per_lun = DEF_CMD_PER_LUN, | |
4518 | .use_clustering = ENABLE_CLUSTERING, | |
4519 | .eh_abort_handler = megaraid_abort, | |
4520 | .eh_device_reset_handler = megaraid_reset, | |
4521 | .eh_bus_reset_handler = megaraid_reset, | |
4522 | .eh_host_reset_handler = megaraid_reset, | |
4523 | }; | |
4524 | ||
6f039790 | 4525 | static int |
1da177e4 LT |
4526 | megaraid_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) |
4527 | { | |
4528 | struct Scsi_Host *host; | |
4529 | adapter_t *adapter; | |
4530 | unsigned long mega_baseport, tbase, flag = 0; | |
4531 | u16 subsysid, subsysvid; | |
4532 | u8 pci_bus, pci_dev_func; | |
4533 | int irq, i, j; | |
4534 | int error = -ENODEV; | |
4535 | ||
4536 | if (pci_enable_device(pdev)) | |
4537 | goto out; | |
4538 | pci_set_master(pdev); | |
4539 | ||
4540 | pci_bus = pdev->bus->number; | |
4541 | pci_dev_func = pdev->devfn; | |
4542 | ||
4543 | /* | |
4544 | * The megaraid3 stuff reports the ID of the Intel part which is not | |
4545 | * remotely specific to the megaraid | |
4546 | */ | |
4547 | if (pdev->vendor == PCI_VENDOR_ID_INTEL) { | |
4548 | u16 magic; | |
4549 | /* | |
4550 | * Don't fall over the Compaq management cards using the same | |
4551 | * PCI identifier | |
4552 | */ | |
4553 | if (pdev->subsystem_vendor == PCI_VENDOR_ID_COMPAQ && | |
4554 | pdev->subsystem_device == 0xC000) | |
4555 | return -ENODEV; | |
4556 | /* Now check the magic signature byte */ | |
4557 | pci_read_config_word(pdev, PCI_CONF_AMISIG, &magic); | |
4558 | if (magic != HBA_SIGNATURE_471 && magic != HBA_SIGNATURE) | |
4559 | return -ENODEV; | |
4560 | /* Ok it is probably a megaraid */ | |
4561 | } | |
4562 | ||
4563 | /* | |
4564 | * For these vendor and device ids, signature offsets are not | |
4565 | * valid and 64 bit is implicit | |
4566 | */ | |
4567 | if (id->driver_data & BOARD_64BIT) | |
4568 | flag |= BOARD_64BIT; | |
4569 | else { | |
4570 | u32 magic64; | |
4571 | ||
4572 | pci_read_config_dword(pdev, PCI_CONF_AMISIG64, &magic64); | |
4573 | if (magic64 == HBA_SIGNATURE_64BIT) | |
4574 | flag |= BOARD_64BIT; | |
4575 | } | |
4576 | ||
4577 | subsysvid = pdev->subsystem_vendor; | |
4578 | subsysid = pdev->subsystem_device; | |
4579 | ||
4580 | printk(KERN_NOTICE "megaraid: found 0x%4.04x:0x%4.04x:bus %d:", | |
4581 | id->vendor, id->device, pci_bus); | |
4582 | ||
4583 | printk("slot %d:func %d\n", | |
4584 | PCI_SLOT(pci_dev_func), PCI_FUNC(pci_dev_func)); | |
4585 | ||
4586 | /* Read the base port and IRQ from PCI */ | |
4587 | mega_baseport = pci_resource_start(pdev, 0); | |
4588 | irq = pdev->irq; | |
4589 | ||
4590 | tbase = mega_baseport; | |
4591 | if (pci_resource_flags(pdev, 0) & IORESOURCE_MEM) { | |
4592 | flag |= BOARD_MEMMAP; | |
4593 | ||
4594 | if (!request_mem_region(mega_baseport, 128, "megaraid")) { | |
4595 | printk(KERN_WARNING "megaraid: mem region busy!\n"); | |
4596 | goto out_disable_device; | |
4597 | } | |
4598 | ||
4599 | mega_baseport = (unsigned long)ioremap(mega_baseport, 128); | |
4600 | if (!mega_baseport) { | |
4601 | printk(KERN_WARNING | |
4602 | "megaraid: could not map hba memory\n"); | |
4603 | goto out_release_region; | |
4604 | } | |
4605 | } else { | |
4606 | flag |= BOARD_IOMAP; | |
4607 | mega_baseport += 0x10; | |
4608 | ||
4609 | if (!request_region(mega_baseport, 16, "megaraid")) | |
4610 | goto out_disable_device; | |
4611 | } | |
4612 | ||
4613 | /* Initialize SCSI Host structure */ | |
4614 | host = scsi_host_alloc(&megaraid_template, sizeof(adapter_t)); | |
4615 | if (!host) | |
4616 | goto out_iounmap; | |
4617 | ||
4618 | adapter = (adapter_t *)host->hostdata; | |
4619 | memset(adapter, 0, sizeof(adapter_t)); | |
4620 | ||
4621 | printk(KERN_NOTICE | |
4622 | "scsi%d:Found MegaRAID controller at 0x%lx, IRQ:%d\n", | |
4623 | host->host_no, mega_baseport, irq); | |
4624 | ||
4625 | adapter->base = mega_baseport; | |
00769ec4 JG |
4626 | if (flag & BOARD_MEMMAP) |
4627 | adapter->mmio_base = (void __iomem *) mega_baseport; | |
1da177e4 LT |
4628 | |
4629 | INIT_LIST_HEAD(&adapter->free_list); | |
4630 | INIT_LIST_HEAD(&adapter->pending_list); | |
4631 | INIT_LIST_HEAD(&adapter->completed_list); | |
4632 | ||
4633 | adapter->flag = flag; | |
4634 | spin_lock_init(&adapter->lock); | |
1da177e4 LT |
4635 | |
4636 | host->cmd_per_lun = max_cmd_per_lun; | |
4637 | host->max_sectors = max_sectors_per_io; | |
4638 | ||
4639 | adapter->dev = pdev; | |
4640 | adapter->host = host; | |
4641 | ||
4642 | adapter->host->irq = irq; | |
4643 | ||
4644 | if (flag & BOARD_MEMMAP) | |
4645 | adapter->host->base = tbase; | |
4646 | else { | |
4647 | adapter->host->io_port = tbase; | |
4648 | adapter->host->n_io_port = 16; | |
4649 | } | |
4650 | ||
4651 | adapter->host->unique_id = (pci_bus << 8) | pci_dev_func; | |
4652 | ||
4653 | /* | |
4654 | * Allocate buffer to issue internal commands. | |
4655 | */ | |
4656 | adapter->mega_buffer = pci_alloc_consistent(adapter->dev, | |
4657 | MEGA_BUFFER_SIZE, &adapter->buf_dma_handle); | |
4658 | if (!adapter->mega_buffer) { | |
4659 | printk(KERN_WARNING "megaraid: out of RAM.\n"); | |
4660 | goto out_host_put; | |
4661 | } | |
4662 | ||
4663 | adapter->scb_list = kmalloc(sizeof(scb_t) * MAX_COMMANDS, GFP_KERNEL); | |
4664 | if (!adapter->scb_list) { | |
4665 | printk(KERN_WARNING "megaraid: out of RAM.\n"); | |
4666 | goto out_free_cmd_buffer; | |
4667 | } | |
4668 | ||
4669 | if (request_irq(irq, (adapter->flag & BOARD_MEMMAP) ? | |
4670 | megaraid_isr_memmapped : megaraid_isr_iomapped, | |
1d6f359a | 4671 | IRQF_SHARED, "megaraid", adapter)) { |
1da177e4 LT |
4672 | printk(KERN_WARNING |
4673 | "megaraid: Couldn't register IRQ %d!\n", irq); | |
4674 | goto out_free_scb_list; | |
4675 | } | |
4676 | ||
4677 | if (mega_setup_mailbox(adapter)) | |
4678 | goto out_free_irq; | |
4679 | ||
4680 | if (mega_query_adapter(adapter)) | |
4681 | goto out_free_mbox; | |
4682 | ||
4683 | /* | |
4684 | * Have checks for some buggy f/w | |
4685 | */ | |
4686 | if ((subsysid == 0x1111) && (subsysvid == 0x1111)) { | |
4687 | /* | |
4688 | * Which firmware | |
4689 | */ | |
4690 | if (!strcmp(adapter->fw_version, "3.00") || | |
4691 | !strcmp(adapter->fw_version, "3.01")) { | |
4692 | ||
4693 | printk( KERN_WARNING | |
4694 | "megaraid: Your card is a Dell PERC " | |
4695 | "2/SC RAID controller with " | |
4696 | "firmware\nmegaraid: 3.00 or 3.01. " | |
4697 | "This driver is known to have " | |
4698 | "corruption issues\nmegaraid: with " | |
4699 | "those firmware versions on this " | |
4700 | "specific card. In order\nmegaraid: " | |
4701 | "to protect your data, please upgrade " | |
4702 | "your firmware to version\nmegaraid: " | |
4703 | "3.10 or later, available from the " | |
4704 | "Dell Technical Support web\n" | |
4705 | "megaraid: site at\nhttp://support." | |
4706 | "dell.com/us/en/filelib/download/" | |
4707 | "index.asp?fileid=2940\n" | |
4708 | ); | |
4709 | } | |
4710 | } | |
4711 | ||
4712 | /* | |
4713 | * If we have a HP 1M(0x60E7)/2M(0x60E8) controller with | |
4714 | * firmware H.01.07, H.01.08, and H.01.09 disable 64 bit | |
4715 | * support, since this firmware cannot handle 64 bit | |
4716 | * addressing | |
4717 | */ | |
54ebfd57 | 4718 | if ((subsysvid == PCI_VENDOR_ID_HP) && |
1da177e4 LT |
4719 | ((subsysid == 0x60E7) || (subsysid == 0x60E8))) { |
4720 | /* | |
4721 | * which firmware | |
4722 | */ | |
4723 | if (!strcmp(adapter->fw_version, "H01.07") || | |
4724 | !strcmp(adapter->fw_version, "H01.08") || | |
4725 | !strcmp(adapter->fw_version, "H01.09") ) { | |
4726 | printk(KERN_WARNING | |
4727 | "megaraid: Firmware H.01.07, " | |
4728 | "H.01.08, and H.01.09 on 1M/2M " | |
4729 | "controllers\n" | |
4730 | "megaraid: do not support 64 bit " | |
4731 | "addressing.\nmegaraid: DISABLING " | |
4732 | "64 bit support.\n"); | |
4733 | adapter->flag &= ~BOARD_64BIT; | |
4734 | } | |
4735 | } | |
4736 | ||
4737 | if (mega_is_bios_enabled(adapter)) | |
4738 | mega_hbas[hba_count].is_bios_enabled = 1; | |
4739 | mega_hbas[hba_count].hostdata_addr = adapter; | |
4740 | ||
4741 | /* | |
4742 | * Find out which channel is raid and which is scsi. This is | |
4743 | * for ROMB support. | |
4744 | */ | |
4745 | mega_enum_raid_scsi(adapter); | |
4746 | ||
4747 | /* | |
4748 | * Find out if a logical drive is set as the boot drive. If | |
4749 | * there is one, will make that as the first logical drive. | |
4750 | * ROMB: Do we have to boot from a physical drive. Then all | |
4751 | * the physical drives would appear before the logical disks. | |
4752 | * Else, all the physical drives would be exported to the mid | |
4753 | * layer after logical drives. | |
4754 | */ | |
4755 | mega_get_boot_drv(adapter); | |
4756 | ||
4757 | if (adapter->boot_pdrv_enabled) { | |
4758 | j = adapter->product_info.nchannels; | |
4759 | for( i = 0; i < j; i++ ) | |
4760 | adapter->logdrv_chan[i] = 0; | |
4761 | for( i = j; i < NVIRT_CHAN + j; i++ ) | |
4762 | adapter->logdrv_chan[i] = 1; | |
4763 | } else { | |
4764 | for (i = 0; i < NVIRT_CHAN; i++) | |
4765 | adapter->logdrv_chan[i] = 1; | |
4766 | for (i = NVIRT_CHAN; i < MAX_CHANNELS+NVIRT_CHAN; i++) | |
4767 | adapter->logdrv_chan[i] = 0; | |
4768 | adapter->mega_ch_class <<= NVIRT_CHAN; | |
4769 | } | |
4770 | ||
4771 | /* | |
4772 | * Do we support random deletion and addition of logical | |
4773 | * drives | |
4774 | */ | |
4775 | adapter->read_ldidmap = 0; /* set it after first logdrv | |
4776 | delete cmd */ | |
4777 | adapter->support_random_del = mega_support_random_del(adapter); | |
4778 | ||
4779 | /* Initialize SCBs */ | |
4780 | if (mega_init_scb(adapter)) | |
4781 | goto out_free_mbox; | |
4782 | ||
4783 | /* | |
4784 | * Reset the pending commands counter | |
4785 | */ | |
4786 | atomic_set(&adapter->pend_cmds, 0); | |
4787 | ||
4788 | /* | |
4789 | * Reset the adapter quiescent flag | |
4790 | */ | |
4791 | atomic_set(&adapter->quiescent, 0); | |
4792 | ||
4793 | hba_soft_state[hba_count] = adapter; | |
4794 | ||
4795 | /* | |
4796 | * Fill in the structure which needs to be passed back to the | |
4797 | * application when it does an ioctl() for controller related | |
4798 | * information. | |
4799 | */ | |
4800 | i = hba_count; | |
4801 | ||
4802 | mcontroller[i].base = mega_baseport; | |
4803 | mcontroller[i].irq = irq; | |
4804 | mcontroller[i].numldrv = adapter->numldrv; | |
4805 | mcontroller[i].pcibus = pci_bus; | |
4806 | mcontroller[i].pcidev = id->device; | |
4807 | mcontroller[i].pcifun = PCI_FUNC (pci_dev_func); | |
4808 | mcontroller[i].pciid = -1; | |
4809 | mcontroller[i].pcivendor = id->vendor; | |
4810 | mcontroller[i].pcislot = PCI_SLOT(pci_dev_func); | |
4811 | mcontroller[i].uid = (pci_bus << 8) | pci_dev_func; | |
4812 | ||
4813 | ||
4814 | /* Set the Mode of addressing to 64 bit if we can */ | |
4815 | if ((adapter->flag & BOARD_64BIT) && (sizeof(dma_addr_t) == 8)) { | |
6a35528a | 4816 | pci_set_dma_mask(pdev, DMA_BIT_MASK(64)); |
1da177e4 LT |
4817 | adapter->has_64bit_addr = 1; |
4818 | } else { | |
284901a9 | 4819 | pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); |
1da177e4 LT |
4820 | adapter->has_64bit_addr = 0; |
4821 | } | |
4822 | ||
0b950672 | 4823 | mutex_init(&adapter->int_mtx); |
8d115f84 | 4824 | init_completion(&adapter->int_waitq); |
1da177e4 LT |
4825 | |
4826 | adapter->this_id = DEFAULT_INITIATOR_ID; | |
4827 | adapter->host->this_id = DEFAULT_INITIATOR_ID; | |
4828 | ||
4829 | #if MEGA_HAVE_CLUSTERING | |
4830 | /* | |
4831 | * Is cluster support enabled on this controller | |
4832 | * Note: In a cluster the HBAs ( the initiators ) will have | |
4833 | * different target IDs and we cannot assume it to be 7. Call | |
4834 | * to mega_support_cluster() will get the target ids also if | |
4835 | * the cluster support is available | |
4836 | */ | |
4837 | adapter->has_cluster = mega_support_cluster(adapter); | |
4838 | if (adapter->has_cluster) { | |
4839 | printk(KERN_NOTICE | |
4840 | "megaraid: Cluster driver, initiator id:%d\n", | |
4841 | adapter->this_id); | |
4842 | } | |
4843 | #endif | |
4844 | ||
4845 | pci_set_drvdata(pdev, host); | |
4846 | ||
4847 | mega_create_proc_entry(hba_count, mega_proc_dir_entry); | |
4848 | ||
4849 | error = scsi_add_host(host, &pdev->dev); | |
4850 | if (error) | |
4851 | goto out_free_mbox; | |
4852 | ||
4853 | scsi_scan_host(host); | |
4854 | hba_count++; | |
4855 | return 0; | |
4856 | ||
4857 | out_free_mbox: | |
4858 | pci_free_consistent(adapter->dev, sizeof(mbox64_t), | |
4859 | adapter->una_mbox64, adapter->una_mbox64_dma); | |
4860 | out_free_irq: | |
4861 | free_irq(adapter->host->irq, adapter); | |
4862 | out_free_scb_list: | |
4863 | kfree(adapter->scb_list); | |
4864 | out_free_cmd_buffer: | |
4865 | pci_free_consistent(adapter->dev, MEGA_BUFFER_SIZE, | |
4866 | adapter->mega_buffer, adapter->buf_dma_handle); | |
4867 | out_host_put: | |
4868 | scsi_host_put(host); | |
4869 | out_iounmap: | |
4870 | if (flag & BOARD_MEMMAP) | |
4871 | iounmap((void *)mega_baseport); | |
4872 | out_release_region: | |
4873 | if (flag & BOARD_MEMMAP) | |
4874 | release_mem_region(tbase, 128); | |
4875 | else | |
4876 | release_region(mega_baseport, 16); | |
4877 | out_disable_device: | |
4878 | pci_disable_device(pdev); | |
4879 | out: | |
4880 | return error; | |
4881 | } | |
4882 | ||
4883 | static void | |
4884 | __megaraid_shutdown(adapter_t *adapter) | |
4885 | { | |
4886 | u_char raw_mbox[sizeof(struct mbox_out)]; | |
4887 | mbox_t *mbox = (mbox_t *)raw_mbox; | |
4888 | int i; | |
4889 | ||
4890 | /* Flush adapter cache */ | |
4891 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); | |
4892 | raw_mbox[0] = FLUSH_ADAPTER; | |
4893 | ||
4894 | free_irq(adapter->host->irq, adapter); | |
4895 | ||
4896 | /* Issue a blocking (interrupts disabled) command to the card */ | |
4897 | issue_scb_block(adapter, raw_mbox); | |
4898 | ||
4899 | /* Flush disks cache */ | |
4900 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); | |
4901 | raw_mbox[0] = FLUSH_SYSTEM; | |
4902 | ||
4903 | /* Issue a blocking (interrupts disabled) command to the card */ | |
4904 | issue_scb_block(adapter, raw_mbox); | |
4905 | ||
4906 | if (atomic_read(&adapter->pend_cmds) > 0) | |
4907 | printk(KERN_WARNING "megaraid: pending commands!!\n"); | |
4908 | ||
4909 | /* | |
4910 | * Have a delibrate delay to make sure all the caches are | |
4911 | * actually flushed. | |
4912 | */ | |
4913 | for (i = 0; i <= 10; i++) | |
4914 | mdelay(1000); | |
4915 | } | |
4916 | ||
6f039790 | 4917 | static void |
1da177e4 LT |
4918 | megaraid_remove_one(struct pci_dev *pdev) |
4919 | { | |
4920 | struct Scsi_Host *host = pci_get_drvdata(pdev); | |
4921 | adapter_t *adapter = (adapter_t *)host->hostdata; | |
1da177e4 LT |
4922 | |
4923 | scsi_remove_host(host); | |
4924 | ||
4925 | __megaraid_shutdown(adapter); | |
4926 | ||
4927 | /* Free our resources */ | |
4928 | if (adapter->flag & BOARD_MEMMAP) { | |
4929 | iounmap((void *)adapter->base); | |
4930 | release_mem_region(adapter->host->base, 128); | |
4931 | } else | |
4932 | release_region(adapter->base, 16); | |
4933 | ||
4934 | mega_free_sgl(adapter); | |
4935 | ||
4936 | #ifdef CONFIG_PROC_FS | |
4937 | if (adapter->controller_proc_dir_entry) { | |
4938 | remove_proc_entry("stat", adapter->controller_proc_dir_entry); | |
4939 | remove_proc_entry("config", | |
4940 | adapter->controller_proc_dir_entry); | |
4941 | remove_proc_entry("mailbox", | |
4942 | adapter->controller_proc_dir_entry); | |
4943 | #if MEGA_HAVE_ENH_PROC | |
4944 | remove_proc_entry("rebuild-rate", | |
4945 | adapter->controller_proc_dir_entry); | |
4946 | remove_proc_entry("battery-status", | |
4947 | adapter->controller_proc_dir_entry); | |
4948 | ||
4949 | remove_proc_entry("diskdrives-ch0", | |
4950 | adapter->controller_proc_dir_entry); | |
4951 | remove_proc_entry("diskdrives-ch1", | |
4952 | adapter->controller_proc_dir_entry); | |
4953 | remove_proc_entry("diskdrives-ch2", | |
4954 | adapter->controller_proc_dir_entry); | |
4955 | remove_proc_entry("diskdrives-ch3", | |
4956 | adapter->controller_proc_dir_entry); | |
4957 | ||
4958 | remove_proc_entry("raiddrives-0-9", | |
4959 | adapter->controller_proc_dir_entry); | |
4960 | remove_proc_entry("raiddrives-10-19", | |
4961 | adapter->controller_proc_dir_entry); | |
4962 | remove_proc_entry("raiddrives-20-29", | |
4963 | adapter->controller_proc_dir_entry); | |
4964 | remove_proc_entry("raiddrives-30-39", | |
4965 | adapter->controller_proc_dir_entry); | |
4966 | #endif | |
84a3c97b | 4967 | { |
4968 | char buf[12] = { 0 }; | |
4969 | sprintf(buf, "hba%d", adapter->host->host_no); | |
4970 | remove_proc_entry(buf, mega_proc_dir_entry); | |
4971 | } | |
1da177e4 LT |
4972 | } |
4973 | #endif | |
4974 | ||
4975 | pci_free_consistent(adapter->dev, MEGA_BUFFER_SIZE, | |
4976 | adapter->mega_buffer, adapter->buf_dma_handle); | |
4977 | kfree(adapter->scb_list); | |
4978 | pci_free_consistent(adapter->dev, sizeof(mbox64_t), | |
4979 | adapter->una_mbox64, adapter->una_mbox64_dma); | |
4980 | ||
4981 | scsi_host_put(host); | |
4982 | pci_disable_device(pdev); | |
4983 | ||
4984 | hba_count--; | |
4985 | } | |
4986 | ||
4987 | static void | |
d18c3db5 | 4988 | megaraid_shutdown(struct pci_dev *pdev) |
1da177e4 | 4989 | { |
d18c3db5 | 4990 | struct Scsi_Host *host = pci_get_drvdata(pdev); |
1da177e4 LT |
4991 | adapter_t *adapter = (adapter_t *)host->hostdata; |
4992 | ||
4993 | __megaraid_shutdown(adapter); | |
4994 | } | |
4995 | ||
4996 | static struct pci_device_id megaraid_pci_tbl[] = { | |
1da177e4 LT |
4997 | {PCI_VENDOR_ID_AMI, PCI_DEVICE_ID_AMI_MEGARAID, |
4998 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, | |
4999 | {PCI_VENDOR_ID_AMI, PCI_DEVICE_ID_AMI_MEGARAID2, | |
5000 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, | |
1da177e4 LT |
5001 | {PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_AMI_MEGARAID3, |
5002 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, | |
1da177e4 LT |
5003 | {0,} |
5004 | }; | |
5005 | MODULE_DEVICE_TABLE(pci, megaraid_pci_tbl); | |
5006 | ||
5007 | static struct pci_driver megaraid_pci_driver = { | |
3542adcb | 5008 | .name = "megaraid_legacy", |
1da177e4 LT |
5009 | .id_table = megaraid_pci_tbl, |
5010 | .probe = megaraid_probe_one, | |
6f039790 | 5011 | .remove = megaraid_remove_one, |
d18c3db5 | 5012 | .shutdown = megaraid_shutdown, |
1da177e4 LT |
5013 | }; |
5014 | ||
5015 | static int __init megaraid_init(void) | |
5016 | { | |
5017 | int error; | |
5018 | ||
5019 | if ((max_cmd_per_lun <= 0) || (max_cmd_per_lun > MAX_CMD_PER_LUN)) | |
5020 | max_cmd_per_lun = MAX_CMD_PER_LUN; | |
5021 | if (max_mbox_busy_wait > MBOX_BUSY_WAIT) | |
5022 | max_mbox_busy_wait = MBOX_BUSY_WAIT; | |
5023 | ||
5024 | #ifdef CONFIG_PROC_FS | |
c74c120a | 5025 | mega_proc_dir_entry = proc_mkdir("megaraid", NULL); |
1da177e4 LT |
5026 | if (!mega_proc_dir_entry) { |
5027 | printk(KERN_WARNING | |
5028 | "megaraid: failed to create megaraid root\n"); | |
5029 | } | |
5030 | #endif | |
4520b008 | 5031 | error = pci_register_driver(&megaraid_pci_driver); |
1da177e4 LT |
5032 | if (error) { |
5033 | #ifdef CONFIG_PROC_FS | |
c74c120a | 5034 | remove_proc_entry("megaraid", NULL); |
1da177e4 LT |
5035 | #endif |
5036 | return error; | |
5037 | } | |
5038 | ||
5039 | /* | |
5040 | * Register the driver as a character device, for applications | |
5041 | * to access it for ioctls. | |
5042 | * First argument (major) to register_chrdev implies a dynamic | |
5043 | * major number allocation. | |
5044 | */ | |
3492b328 | 5045 | major = register_chrdev(0, "megadev_legacy", &megadev_fops); |
1da177e4 LT |
5046 | if (!major) { |
5047 | printk(KERN_WARNING | |
5048 | "megaraid: failed to register char device\n"); | |
5049 | } | |
5050 | ||
5051 | return 0; | |
5052 | } | |
5053 | ||
5054 | static void __exit megaraid_exit(void) | |
5055 | { | |
5056 | /* | |
5057 | * Unregister the character device interface to the driver. | |
5058 | */ | |
3492b328 | 5059 | unregister_chrdev(major, "megadev_legacy"); |
1da177e4 LT |
5060 | |
5061 | pci_unregister_driver(&megaraid_pci_driver); | |
5062 | ||
5063 | #ifdef CONFIG_PROC_FS | |
c74c120a | 5064 | remove_proc_entry("megaraid", NULL); |
1da177e4 LT |
5065 | #endif |
5066 | } | |
5067 | ||
5068 | module_init(megaraid_init); | |
5069 | module_exit(megaraid_exit); | |
5070 | ||
5071 | /* vi: set ts=8 sw=8 tw=78: */ |