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Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * | |
3 | * Linux MegaRAID device driver | |
4 | * | |
3492b328 | 5 | * Copyright (c) 2002 LSI Logic Corporation. |
1da177e4 LT |
6 | * |
7 | * This program is free software; you can redistribute it and/or | |
8 | * modify it under the terms of the GNU General Public License | |
9 | * as published by the Free Software Foundation; either version | |
10 | * 2 of the License, or (at your option) any later version. | |
11 | * | |
12 | * Copyright (c) 2002 Red Hat, Inc. All rights reserved. | |
13 | * - fixes | |
14 | * - speed-ups (list handling fixes, issued_list, optimizations.) | |
15 | * - lots of cleanups. | |
16 | * | |
17 | * Copyright (c) 2003 Christoph Hellwig <hch@lst.de> | |
18 | * - new-style, hotplug-aware pci probing and scsi registration | |
19 | * | |
3492b328 JS |
20 | * Version : v2.00.4 Mon Nov 14 14:02:43 EST 2005 - Seokmann Ju |
21 | * <Seokmann.Ju@lsil.com> | |
1da177e4 LT |
22 | * |
23 | * Description: Linux device driver for LSI Logic MegaRAID controller | |
24 | * | |
25 | * Supported controllers: MegaRAID 418, 428, 438, 466, 762, 467, 471, 490, 493 | |
26 | * 518, 520, 531, 532 | |
27 | * | |
28 | * This driver is supported by LSI Logic, with assistance from Red Hat, Dell, | |
29 | * and others. Please send updates to the mailing list | |
30 | * linux-scsi@vger.kernel.org . | |
31 | * | |
32 | */ | |
33 | ||
34 | #include <linux/mm.h> | |
35 | #include <linux/fs.h> | |
36 | #include <linux/blkdev.h> | |
37 | #include <asm/uaccess.h> | |
38 | #include <asm/io.h> | |
8d115f84 | 39 | #include <linux/completion.h> |
1da177e4 LT |
40 | #include <linux/delay.h> |
41 | #include <linux/proc_fs.h> | |
c7f079ca | 42 | #include <linux/seq_file.h> |
1da177e4 LT |
43 | #include <linux/reboot.h> |
44 | #include <linux/module.h> | |
45 | #include <linux/list.h> | |
46 | #include <linux/interrupt.h> | |
47 | #include <linux/pci.h> | |
48 | #include <linux/init.h> | |
910638ae | 49 | #include <linux/dma-mapping.h> |
c45d15d2 | 50 | #include <linux/mutex.h> |
5a0e3ad6 | 51 | #include <linux/slab.h> |
1da177e4 LT |
52 | #include <scsi/scsicam.h> |
53 | ||
54 | #include "scsi.h" | |
55 | #include <scsi/scsi_host.h> | |
56 | ||
57 | #include "megaraid.h" | |
58 | ||
3492b328 | 59 | #define MEGARAID_MODULE_VERSION "2.00.4" |
1da177e4 | 60 | |
3492b328 JS |
61 | MODULE_AUTHOR ("sju@lsil.com"); |
62 | MODULE_DESCRIPTION ("LSI Logic MegaRAID legacy driver"); | |
1da177e4 LT |
63 | MODULE_LICENSE ("GPL"); |
64 | MODULE_VERSION(MEGARAID_MODULE_VERSION); | |
65 | ||
c45d15d2 | 66 | static DEFINE_MUTEX(megadev_mutex); |
1da177e4 LT |
67 | static unsigned int max_cmd_per_lun = DEF_CMD_PER_LUN; |
68 | module_param(max_cmd_per_lun, uint, 0); | |
69 | 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)"); | |
70 | ||
71 | static unsigned short int max_sectors_per_io = MAX_SECTORS_PER_IO; | |
72 | module_param(max_sectors_per_io, ushort, 0); | |
73 | MODULE_PARM_DESC(max_sectors_per_io, "Maximum number of sectors per I/O request (default=MAX_SECTORS_PER_IO=128)"); | |
74 | ||
75 | ||
76 | static unsigned short int max_mbox_busy_wait = MBOX_BUSY_WAIT; | |
77 | module_param(max_mbox_busy_wait, ushort, 0); | |
78 | MODULE_PARM_DESC(max_mbox_busy_wait, "Maximum wait for mailbox in microseconds if busy (default=MBOX_BUSY_WAIT=10)"); | |
79 | ||
00769ec4 JG |
80 | #define RDINDOOR(adapter) readl((adapter)->mmio_base + 0x20) |
81 | #define RDOUTDOOR(adapter) readl((adapter)->mmio_base + 0x2C) | |
82 | #define WRINDOOR(adapter,value) writel(value, (adapter)->mmio_base + 0x20) | |
83 | #define WROUTDOOR(adapter,value) writel(value, (adapter)->mmio_base + 0x2C) | |
1da177e4 LT |
84 | |
85 | /* | |
86 | * Global variables | |
87 | */ | |
88 | ||
89 | static int hba_count; | |
90 | static adapter_t *hba_soft_state[MAX_CONTROLLERS]; | |
91 | static struct proc_dir_entry *mega_proc_dir_entry; | |
92 | ||
93 | /* For controller re-ordering */ | |
94 | static struct mega_hbas mega_hbas[MAX_CONTROLLERS]; | |
95 | ||
f4927c45 AB |
96 | static long |
97 | megadev_unlocked_ioctl(struct file *filep, unsigned int cmd, unsigned long arg); | |
98 | ||
1da177e4 LT |
99 | /* |
100 | * The File Operations structure for the serial/ioctl interface of the driver | |
101 | */ | |
00977a59 | 102 | static const struct file_operations megadev_fops = { |
1da177e4 | 103 | .owner = THIS_MODULE, |
f4927c45 | 104 | .unlocked_ioctl = megadev_unlocked_ioctl, |
1da177e4 | 105 | .open = megadev_open, |
6038f373 | 106 | .llseek = noop_llseek, |
1da177e4 LT |
107 | }; |
108 | ||
109 | /* | |
110 | * Array to structures for storing the information about the controllers. This | |
111 | * information is sent to the user level applications, when they do an ioctl | |
112 | * for this information. | |
113 | */ | |
114 | static struct mcontroller mcontroller[MAX_CONTROLLERS]; | |
115 | ||
116 | /* The current driver version */ | |
117 | static u32 driver_ver = 0x02000000; | |
118 | ||
119 | /* major number used by the device for character interface */ | |
120 | static int major; | |
121 | ||
122 | #define IS_RAID_CH(hba, ch) (((hba)->mega_ch_class >> (ch)) & 0x01) | |
123 | ||
124 | ||
125 | /* | |
126 | * Debug variable to print some diagnostic messages | |
127 | */ | |
128 | static int trace_level; | |
129 | ||
130 | /** | |
131 | * mega_setup_mailbox() | |
132 | * @adapter - pointer to our soft state | |
133 | * | |
134 | * Allocates a 8 byte aligned memory for the handshake mailbox. | |
135 | */ | |
136 | static int | |
137 | mega_setup_mailbox(adapter_t *adapter) | |
138 | { | |
139 | unsigned long align; | |
140 | ||
141 | adapter->una_mbox64 = pci_alloc_consistent(adapter->dev, | |
142 | sizeof(mbox64_t), &adapter->una_mbox64_dma); | |
143 | ||
144 | if( !adapter->una_mbox64 ) return -1; | |
145 | ||
146 | adapter->mbox = &adapter->una_mbox64->mbox; | |
147 | ||
148 | adapter->mbox = (mbox_t *)((((unsigned long) adapter->mbox) + 15) & | |
149 | (~0UL ^ 0xFUL)); | |
150 | ||
151 | adapter->mbox64 = (mbox64_t *)(((unsigned long)adapter->mbox) - 8); | |
152 | ||
153 | align = ((void *)adapter->mbox) - ((void *)&adapter->una_mbox64->mbox); | |
154 | ||
155 | adapter->mbox_dma = adapter->una_mbox64_dma + 8 + align; | |
156 | ||
157 | /* | |
158 | * Register the mailbox if the controller is an io-mapped controller | |
159 | */ | |
160 | if( adapter->flag & BOARD_IOMAP ) { | |
161 | ||
7d1abbe8 | 162 | outb(adapter->mbox_dma & 0xFF, |
1da177e4 LT |
163 | adapter->host->io_port + MBOX_PORT0); |
164 | ||
7d1abbe8 | 165 | outb((adapter->mbox_dma >> 8) & 0xFF, |
1da177e4 LT |
166 | adapter->host->io_port + MBOX_PORT1); |
167 | ||
7d1abbe8 | 168 | outb((adapter->mbox_dma >> 16) & 0xFF, |
1da177e4 LT |
169 | adapter->host->io_port + MBOX_PORT2); |
170 | ||
7d1abbe8 | 171 | outb((adapter->mbox_dma >> 24) & 0xFF, |
1da177e4 LT |
172 | adapter->host->io_port + MBOX_PORT3); |
173 | ||
7d1abbe8 | 174 | outb(ENABLE_MBOX_BYTE, |
1da177e4 LT |
175 | adapter->host->io_port + ENABLE_MBOX_REGION); |
176 | ||
177 | irq_ack(adapter); | |
178 | ||
179 | irq_enable(adapter); | |
180 | } | |
181 | ||
182 | return 0; | |
183 | } | |
184 | ||
185 | ||
186 | /* | |
187 | * mega_query_adapter() | |
188 | * @adapter - pointer to our soft state | |
189 | * | |
190 | * Issue the adapter inquiry commands to the controller and find out | |
191 | * information and parameter about the devices attached | |
192 | */ | |
193 | static int | |
194 | mega_query_adapter(adapter_t *adapter) | |
195 | { | |
196 | dma_addr_t prod_info_dma_handle; | |
197 | mega_inquiry3 *inquiry3; | |
198 | u8 raw_mbox[sizeof(struct mbox_out)]; | |
199 | mbox_t *mbox; | |
200 | int retval; | |
201 | ||
202 | /* Initialize adapter inquiry mailbox */ | |
203 | ||
204 | mbox = (mbox_t *)raw_mbox; | |
205 | ||
206 | memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE); | |
207 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); | |
208 | ||
209 | /* | |
210 | * Try to issue Inquiry3 command | |
211 | * if not succeeded, then issue MEGA_MBOXCMD_ADAPTERINQ command and | |
212 | * update enquiry3 structure | |
213 | */ | |
214 | mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle; | |
215 | ||
216 | inquiry3 = (mega_inquiry3 *)adapter->mega_buffer; | |
217 | ||
218 | raw_mbox[0] = FC_NEW_CONFIG; /* i.e. mbox->cmd=0xA1 */ | |
219 | raw_mbox[2] = NC_SUBOP_ENQUIRY3; /* i.e. 0x0F */ | |
220 | raw_mbox[3] = ENQ3_GET_SOLICITED_FULL; /* i.e. 0x02 */ | |
221 | ||
222 | /* Issue a blocking command to the card */ | |
223 | if ((retval = issue_scb_block(adapter, raw_mbox))) { | |
224 | /* the adapter does not support 40ld */ | |
225 | ||
226 | mraid_ext_inquiry *ext_inq; | |
227 | mraid_inquiry *inq; | |
228 | dma_addr_t dma_handle; | |
229 | ||
230 | ext_inq = pci_alloc_consistent(adapter->dev, | |
231 | sizeof(mraid_ext_inquiry), &dma_handle); | |
232 | ||
233 | if( ext_inq == NULL ) return -1; | |
234 | ||
235 | inq = &ext_inq->raid_inq; | |
236 | ||
237 | mbox->m_out.xferaddr = (u32)dma_handle; | |
238 | ||
239 | /*issue old 0x04 command to adapter */ | |
240 | mbox->m_out.cmd = MEGA_MBOXCMD_ADPEXTINQ; | |
241 | ||
242 | issue_scb_block(adapter, raw_mbox); | |
243 | ||
244 | /* | |
245 | * update Enquiry3 and ProductInfo structures with | |
246 | * mraid_inquiry structure | |
247 | */ | |
248 | mega_8_to_40ld(inq, inquiry3, | |
249 | (mega_product_info *)&adapter->product_info); | |
250 | ||
251 | pci_free_consistent(adapter->dev, sizeof(mraid_ext_inquiry), | |
252 | ext_inq, dma_handle); | |
253 | ||
254 | } else { /*adapter supports 40ld */ | |
255 | adapter->flag |= BOARD_40LD; | |
256 | ||
257 | /* | |
258 | * get product_info, which is static information and will be | |
259 | * unchanged | |
260 | */ | |
261 | prod_info_dma_handle = pci_map_single(adapter->dev, (void *) | |
262 | &adapter->product_info, | |
263 | sizeof(mega_product_info), PCI_DMA_FROMDEVICE); | |
264 | ||
265 | mbox->m_out.xferaddr = prod_info_dma_handle; | |
266 | ||
267 | raw_mbox[0] = FC_NEW_CONFIG; /* i.e. mbox->cmd=0xA1 */ | |
268 | raw_mbox[2] = NC_SUBOP_PRODUCT_INFO; /* i.e. 0x0E */ | |
269 | ||
270 | if ((retval = issue_scb_block(adapter, raw_mbox))) | |
271 | printk(KERN_WARNING | |
272 | "megaraid: Product_info cmd failed with error: %d\n", | |
273 | retval); | |
274 | ||
275 | pci_unmap_single(adapter->dev, prod_info_dma_handle, | |
276 | sizeof(mega_product_info), PCI_DMA_FROMDEVICE); | |
277 | } | |
278 | ||
279 | ||
280 | /* | |
281 | * kernel scans the channels from 0 to <= max_channel | |
282 | */ | |
283 | adapter->host->max_channel = | |
284 | adapter->product_info.nchannels + NVIRT_CHAN -1; | |
285 | ||
286 | adapter->host->max_id = 16; /* max targets per channel */ | |
287 | ||
25985edc | 288 | adapter->host->max_lun = 7; /* Up to 7 luns for non disk devices */ |
1da177e4 LT |
289 | |
290 | adapter->host->cmd_per_lun = max_cmd_per_lun; | |
291 | ||
292 | adapter->numldrv = inquiry3->num_ldrv; | |
293 | ||
294 | adapter->max_cmds = adapter->product_info.max_commands; | |
295 | ||
296 | if(adapter->max_cmds > MAX_COMMANDS) | |
297 | adapter->max_cmds = MAX_COMMANDS; | |
298 | ||
299 | adapter->host->can_queue = adapter->max_cmds - 1; | |
300 | ||
301 | /* | |
302 | * Get the maximum number of scatter-gather elements supported by this | |
303 | * firmware | |
304 | */ | |
305 | mega_get_max_sgl(adapter); | |
306 | ||
307 | adapter->host->sg_tablesize = adapter->sglen; | |
308 | ||
124dd90f AR |
309 | /* use HP firmware and bios version encoding |
310 | Note: fw_version[0|1] and bios_version[0|1] were originally shifted | |
311 | right 8 bits making them zero. This 0 value was hardcoded to fix | |
312 | sparse warnings. */ | |
54ebfd57 | 313 | if (adapter->product_info.subsysvid == PCI_VENDOR_ID_HP) { |
1da177e4 LT |
314 | sprintf (adapter->fw_version, "%c%d%d.%d%d", |
315 | adapter->product_info.fw_version[2], | |
124dd90f | 316 | 0, |
1da177e4 | 317 | adapter->product_info.fw_version[1] & 0x0f, |
124dd90f | 318 | 0, |
1da177e4 LT |
319 | adapter->product_info.fw_version[0] & 0x0f); |
320 | sprintf (adapter->bios_version, "%c%d%d.%d%d", | |
321 | adapter->product_info.bios_version[2], | |
124dd90f | 322 | 0, |
1da177e4 | 323 | adapter->product_info.bios_version[1] & 0x0f, |
124dd90f | 324 | 0, |
1da177e4 LT |
325 | adapter->product_info.bios_version[0] & 0x0f); |
326 | } else { | |
327 | memcpy(adapter->fw_version, | |
328 | (char *)adapter->product_info.fw_version, 4); | |
329 | adapter->fw_version[4] = 0; | |
330 | ||
331 | memcpy(adapter->bios_version, | |
332 | (char *)adapter->product_info.bios_version, 4); | |
333 | ||
334 | adapter->bios_version[4] = 0; | |
335 | } | |
336 | ||
337 | printk(KERN_NOTICE "megaraid: [%s:%s] detected %d logical drives.\n", | |
338 | adapter->fw_version, adapter->bios_version, adapter->numldrv); | |
339 | ||
340 | /* | |
341 | * Do we support extended (>10 bytes) cdbs | |
342 | */ | |
343 | adapter->support_ext_cdb = mega_support_ext_cdb(adapter); | |
344 | if (adapter->support_ext_cdb) | |
345 | printk(KERN_NOTICE "megaraid: supports extended CDBs.\n"); | |
346 | ||
347 | ||
348 | return 0; | |
349 | } | |
350 | ||
351 | /** | |
352 | * mega_runpendq() | |
353 | * @adapter - pointer to our soft state | |
354 | * | |
355 | * Runs through the list of pending requests. | |
356 | */ | |
357 | static inline void | |
358 | mega_runpendq(adapter_t *adapter) | |
359 | { | |
360 | if(!list_empty(&adapter->pending_list)) | |
361 | __mega_runpendq(adapter); | |
362 | } | |
363 | ||
364 | /* | |
365 | * megaraid_queue() | |
366 | * @scmd - Issue this scsi command | |
367 | * @done - the callback hook into the scsi mid-layer | |
368 | * | |
369 | * The command queuing entry point for the mid-layer. | |
370 | */ | |
371 | static int | |
f281233d | 372 | megaraid_queue_lck(Scsi_Cmnd *scmd, void (*done)(Scsi_Cmnd *)) |
1da177e4 LT |
373 | { |
374 | adapter_t *adapter; | |
375 | scb_t *scb; | |
376 | int busy=0; | |
cb0258a2 | 377 | unsigned long flags; |
1da177e4 LT |
378 | |
379 | adapter = (adapter_t *)scmd->device->host->hostdata; | |
380 | ||
381 | scmd->scsi_done = done; | |
382 | ||
383 | ||
384 | /* | |
385 | * Allocate and build a SCB request | |
386 | * busy flag will be set if mega_build_cmd() command could not | |
387 | * allocate scb. We will return non-zero status in that case. | |
388 | * NOTE: scb can be null even though certain commands completed | |
389 | * successfully, e.g., MODE_SENSE and TEST_UNIT_READY, we would | |
390 | * return 0 in that case. | |
391 | */ | |
392 | ||
cb0258a2 | 393 | spin_lock_irqsave(&adapter->lock, flags); |
1da177e4 | 394 | scb = mega_build_cmd(adapter, scmd, &busy); |
238f9b06 CH |
395 | if (!scb) |
396 | goto out; | |
1da177e4 | 397 | |
238f9b06 CH |
398 | scb->state |= SCB_PENDQ; |
399 | list_add_tail(&scb->list, &adapter->pending_list); | |
1da177e4 | 400 | |
238f9b06 CH |
401 | /* |
402 | * Check if the HBA is in quiescent state, e.g., during a | |
403 | * delete logical drive opertion. If it is, don't run | |
404 | * the pending_list. | |
405 | */ | |
406 | if (atomic_read(&adapter->quiescent) == 0) | |
407 | mega_runpendq(adapter); | |
1da177e4 | 408 | |
238f9b06 CH |
409 | busy = 0; |
410 | out: | |
411 | spin_unlock_irqrestore(&adapter->lock, flags); | |
1da177e4 LT |
412 | return busy; |
413 | } | |
414 | ||
f281233d JG |
415 | static DEF_SCSI_QCMD(megaraid_queue) |
416 | ||
1da177e4 LT |
417 | /** |
418 | * mega_allocate_scb() | |
419 | * @adapter - pointer to our soft state | |
420 | * @cmd - scsi command from the mid-layer | |
421 | * | |
422 | * Allocate a SCB structure. This is the central structure for controller | |
423 | * commands. | |
424 | */ | |
425 | static inline scb_t * | |
426 | mega_allocate_scb(adapter_t *adapter, Scsi_Cmnd *cmd) | |
427 | { | |
428 | struct list_head *head = &adapter->free_list; | |
429 | scb_t *scb; | |
430 | ||
431 | /* Unlink command from Free List */ | |
432 | if( !list_empty(head) ) { | |
433 | ||
434 | scb = list_entry(head->next, scb_t, list); | |
435 | ||
436 | list_del_init(head->next); | |
437 | ||
438 | scb->state = SCB_ACTIVE; | |
439 | scb->cmd = cmd; | |
440 | scb->dma_type = MEGA_DMA_TYPE_NONE; | |
441 | ||
442 | return scb; | |
443 | } | |
444 | ||
445 | return NULL; | |
446 | } | |
447 | ||
448 | /** | |
449 | * mega_get_ldrv_num() | |
450 | * @adapter - pointer to our soft state | |
451 | * @cmd - scsi mid layer command | |
452 | * @channel - channel on the controller | |
453 | * | |
454 | * Calculate the logical drive number based on the information in scsi command | |
455 | * and the channel number. | |
456 | */ | |
457 | static inline int | |
458 | mega_get_ldrv_num(adapter_t *adapter, Scsi_Cmnd *cmd, int channel) | |
459 | { | |
460 | int tgt; | |
461 | int ldrv_num; | |
462 | ||
463 | tgt = cmd->device->id; | |
464 | ||
465 | if ( tgt > adapter->this_id ) | |
466 | tgt--; /* we do not get inquires for initiator id */ | |
467 | ||
468 | ldrv_num = (channel * 15) + tgt; | |
469 | ||
470 | ||
471 | /* | |
472 | * If we have a logical drive with boot enabled, project it first | |
473 | */ | |
474 | if( adapter->boot_ldrv_enabled ) { | |
475 | if( ldrv_num == 0 ) { | |
476 | ldrv_num = adapter->boot_ldrv; | |
477 | } | |
478 | else { | |
479 | if( ldrv_num <= adapter->boot_ldrv ) { | |
480 | ldrv_num--; | |
481 | } | |
482 | } | |
483 | } | |
484 | ||
485 | /* | |
486 | * If "delete logical drive" feature is enabled on this controller. | |
487 | * Do only if at least one delete logical drive operation was done. | |
488 | * | |
489 | * Also, after logical drive deletion, instead of logical drive number, | |
490 | * the value returned should be 0x80+logical drive id. | |
491 | * | |
492 | * These is valid only for IO commands. | |
493 | */ | |
494 | ||
495 | if (adapter->support_random_del && adapter->read_ldidmap ) | |
496 | switch (cmd->cmnd[0]) { | |
497 | case READ_6: /* fall through */ | |
498 | case WRITE_6: /* fall through */ | |
499 | case READ_10: /* fall through */ | |
500 | case WRITE_10: | |
501 | ldrv_num += 0x80; | |
502 | } | |
503 | ||
504 | return ldrv_num; | |
505 | } | |
506 | ||
507 | /** | |
508 | * mega_build_cmd() | |
509 | * @adapter - pointer to our soft state | |
510 | * @cmd - Prepare using this scsi command | |
511 | * @busy - busy flag if no resources | |
512 | * | |
513 | * Prepares a command and scatter gather list for the controller. This routine | |
514 | * also finds out if the commands is intended for a logical drive or a | |
515 | * physical device and prepares the controller command accordingly. | |
516 | * | |
517 | * We also re-order the logical drives and physical devices based on their | |
518 | * boot settings. | |
519 | */ | |
520 | static scb_t * | |
521 | mega_build_cmd(adapter_t *adapter, Scsi_Cmnd *cmd, int *busy) | |
522 | { | |
523 | mega_ext_passthru *epthru; | |
524 | mega_passthru *pthru; | |
525 | scb_t *scb; | |
526 | mbox_t *mbox; | |
9d5d93e3 | 527 | u32 seg; |
1da177e4 LT |
528 | char islogical; |
529 | int max_ldrv_num; | |
530 | int channel = 0; | |
531 | int target = 0; | |
532 | int ldrv_num = 0; /* logical drive number */ | |
533 | ||
1da177e4 LT |
534 | /* |
535 | * We know what channels our logical drives are on - mega_find_card() | |
536 | */ | |
537 | islogical = adapter->logdrv_chan[cmd->device->channel]; | |
538 | ||
539 | /* | |
540 | * The theory: If physical drive is chosen for boot, all the physical | |
541 | * devices are exported before the logical drives, otherwise physical | |
542 | * devices are pushed after logical drives, in which case - Kernel sees | |
543 | * the physical devices on virtual channel which is obviously converted | |
544 | * to actual channel on the HBA. | |
545 | */ | |
546 | if( adapter->boot_pdrv_enabled ) { | |
547 | if( islogical ) { | |
548 | /* logical channel */ | |
549 | channel = cmd->device->channel - | |
550 | adapter->product_info.nchannels; | |
551 | } | |
552 | else { | |
553 | /* this is physical channel */ | |
554 | channel = cmd->device->channel; | |
555 | target = cmd->device->id; | |
556 | ||
557 | /* | |
558 | * boot from a physical disk, that disk needs to be | |
559 | * exposed first IF both the channels are SCSI, then | |
560 | * booting from the second channel is not allowed. | |
561 | */ | |
562 | if( target == 0 ) { | |
563 | target = adapter->boot_pdrv_tgt; | |
564 | } | |
565 | else if( target == adapter->boot_pdrv_tgt ) { | |
566 | target = 0; | |
567 | } | |
568 | } | |
569 | } | |
570 | else { | |
571 | if( islogical ) { | |
572 | /* this is the logical channel */ | |
573 | channel = cmd->device->channel; | |
574 | } | |
575 | else { | |
576 | /* physical channel */ | |
577 | channel = cmd->device->channel - NVIRT_CHAN; | |
578 | target = cmd->device->id; | |
579 | } | |
580 | } | |
581 | ||
582 | ||
583 | if(islogical) { | |
584 | ||
585 | /* have just LUN 0 for each target on virtual channels */ | |
586 | if (cmd->device->lun) { | |
587 | cmd->result = (DID_BAD_TARGET << 16); | |
588 | cmd->scsi_done(cmd); | |
589 | return NULL; | |
590 | } | |
591 | ||
592 | ldrv_num = mega_get_ldrv_num(adapter, cmd, channel); | |
593 | ||
594 | ||
595 | max_ldrv_num = (adapter->flag & BOARD_40LD) ? | |
596 | MAX_LOGICAL_DRIVES_40LD : MAX_LOGICAL_DRIVES_8LD; | |
597 | ||
598 | /* | |
599 | * max_ldrv_num increases by 0x80 if some logical drive was | |
600 | * deleted. | |
601 | */ | |
602 | if(adapter->read_ldidmap) | |
603 | max_ldrv_num += 0x80; | |
604 | ||
605 | if(ldrv_num > max_ldrv_num ) { | |
606 | cmd->result = (DID_BAD_TARGET << 16); | |
607 | cmd->scsi_done(cmd); | |
608 | return NULL; | |
609 | } | |
610 | ||
611 | } | |
612 | else { | |
613 | if( cmd->device->lun > 7) { | |
614 | /* | |
615 | * Do not support lun >7 for physically accessed | |
616 | * devices | |
617 | */ | |
618 | cmd->result = (DID_BAD_TARGET << 16); | |
619 | cmd->scsi_done(cmd); | |
620 | return NULL; | |
621 | } | |
622 | } | |
623 | ||
624 | /* | |
625 | * | |
626 | * Logical drive commands | |
627 | * | |
628 | */ | |
629 | if(islogical) { | |
630 | switch (cmd->cmnd[0]) { | |
631 | case TEST_UNIT_READY: | |
1da177e4 LT |
632 | #if MEGA_HAVE_CLUSTERING |
633 | /* | |
634 | * Do we support clustering and is the support enabled | |
635 | * If no, return success always | |
636 | */ | |
637 | if( !adapter->has_cluster ) { | |
638 | cmd->result = (DID_OK << 16); | |
639 | cmd->scsi_done(cmd); | |
640 | return NULL; | |
641 | } | |
642 | ||
643 | if(!(scb = mega_allocate_scb(adapter, cmd))) { | |
644 | *busy = 1; | |
645 | return NULL; | |
646 | } | |
647 | ||
648 | scb->raw_mbox[0] = MEGA_CLUSTER_CMD; | |
649 | scb->raw_mbox[2] = MEGA_RESERVATION_STATUS; | |
650 | scb->raw_mbox[3] = ldrv_num; | |
651 | ||
652 | scb->dma_direction = PCI_DMA_NONE; | |
653 | ||
654 | return scb; | |
655 | #else | |
656 | cmd->result = (DID_OK << 16); | |
657 | cmd->scsi_done(cmd); | |
658 | return NULL; | |
659 | #endif | |
660 | ||
51c928c3 JB |
661 | case MODE_SENSE: { |
662 | char *buf; | |
3f6270ef | 663 | struct scatterlist *sg; |
51c928c3 | 664 | |
3f6270ef | 665 | sg = scsi_sglist(cmd); |
77dfce07 | 666 | buf = kmap_atomic(sg_page(sg)) + sg->offset; |
51c928c3 | 667 | |
f0353301 | 668 | memset(buf, 0, cmd->cmnd[4]); |
77dfce07 | 669 | kunmap_atomic(buf - sg->offset); |
51c928c3 | 670 | |
1da177e4 LT |
671 | cmd->result = (DID_OK << 16); |
672 | cmd->scsi_done(cmd); | |
673 | return NULL; | |
51c928c3 | 674 | } |
1da177e4 LT |
675 | |
676 | case READ_CAPACITY: | |
677 | case INQUIRY: | |
678 | ||
679 | if(!(adapter->flag & (1L << cmd->device->channel))) { | |
680 | ||
681 | printk(KERN_NOTICE | |
682 | "scsi%d: scanning scsi channel %d ", | |
683 | adapter->host->host_no, | |
684 | cmd->device->channel); | |
685 | printk("for logical drives.\n"); | |
686 | ||
687 | adapter->flag |= (1L << cmd->device->channel); | |
688 | } | |
689 | ||
690 | /* Allocate a SCB and initialize passthru */ | |
691 | if(!(scb = mega_allocate_scb(adapter, cmd))) { | |
692 | *busy = 1; | |
693 | return NULL; | |
694 | } | |
695 | pthru = scb->pthru; | |
696 | ||
697 | mbox = (mbox_t *)scb->raw_mbox; | |
698 | memset(mbox, 0, sizeof(scb->raw_mbox)); | |
699 | memset(pthru, 0, sizeof(mega_passthru)); | |
700 | ||
701 | pthru->timeout = 0; | |
702 | pthru->ars = 1; | |
703 | pthru->reqsenselen = 14; | |
704 | pthru->islogical = 1; | |
705 | pthru->logdrv = ldrv_num; | |
706 | pthru->cdblen = cmd->cmd_len; | |
707 | memcpy(pthru->cdb, cmd->cmnd, cmd->cmd_len); | |
708 | ||
709 | if( adapter->has_64bit_addr ) { | |
710 | mbox->m_out.cmd = MEGA_MBOXCMD_PASSTHRU64; | |
711 | } | |
712 | else { | |
713 | mbox->m_out.cmd = MEGA_MBOXCMD_PASSTHRU; | |
714 | } | |
715 | ||
716 | scb->dma_direction = PCI_DMA_FROMDEVICE; | |
717 | ||
718 | pthru->numsgelements = mega_build_sglist(adapter, scb, | |
719 | &pthru->dataxferaddr, &pthru->dataxferlen); | |
720 | ||
721 | mbox->m_out.xferaddr = scb->pthru_dma_addr; | |
722 | ||
723 | return scb; | |
724 | ||
725 | case READ_6: | |
726 | case WRITE_6: | |
727 | case READ_10: | |
728 | case WRITE_10: | |
729 | case READ_12: | |
730 | case WRITE_12: | |
731 | ||
732 | /* Allocate a SCB and initialize mailbox */ | |
733 | if(!(scb = mega_allocate_scb(adapter, cmd))) { | |
734 | *busy = 1; | |
735 | return NULL; | |
736 | } | |
737 | mbox = (mbox_t *)scb->raw_mbox; | |
738 | ||
739 | memset(mbox, 0, sizeof(scb->raw_mbox)); | |
740 | mbox->m_out.logdrv = ldrv_num; | |
741 | ||
742 | /* | |
743 | * A little hack: 2nd bit is zero for all scsi read | |
744 | * commands and is set for all scsi write commands | |
745 | */ | |
746 | if( adapter->has_64bit_addr ) { | |
747 | mbox->m_out.cmd = (*cmd->cmnd & 0x02) ? | |
748 | MEGA_MBOXCMD_LWRITE64: | |
749 | MEGA_MBOXCMD_LREAD64 ; | |
750 | } | |
751 | else { | |
752 | mbox->m_out.cmd = (*cmd->cmnd & 0x02) ? | |
753 | MEGA_MBOXCMD_LWRITE: | |
754 | MEGA_MBOXCMD_LREAD ; | |
755 | } | |
756 | ||
757 | /* | |
758 | * 6-byte READ(0x08) or WRITE(0x0A) cdb | |
759 | */ | |
760 | if( cmd->cmd_len == 6 ) { | |
761 | mbox->m_out.numsectors = (u32) cmd->cmnd[4]; | |
762 | mbox->m_out.lba = | |
763 | ((u32)cmd->cmnd[1] << 16) | | |
764 | ((u32)cmd->cmnd[2] << 8) | | |
765 | (u32)cmd->cmnd[3]; | |
766 | ||
767 | mbox->m_out.lba &= 0x1FFFFF; | |
768 | ||
769 | #if MEGA_HAVE_STATS | |
770 | /* | |
771 | * Take modulo 0x80, since the logical drive | |
772 | * number increases by 0x80 when a logical | |
773 | * drive was deleted | |
774 | */ | |
775 | if (*cmd->cmnd == READ_6) { | |
776 | adapter->nreads[ldrv_num%0x80]++; | |
777 | adapter->nreadblocks[ldrv_num%0x80] += | |
778 | mbox->m_out.numsectors; | |
779 | } else { | |
780 | adapter->nwrites[ldrv_num%0x80]++; | |
781 | adapter->nwriteblocks[ldrv_num%0x80] += | |
782 | mbox->m_out.numsectors; | |
783 | } | |
784 | #endif | |
785 | } | |
786 | ||
787 | /* | |
788 | * 10-byte READ(0x28) or WRITE(0x2A) cdb | |
789 | */ | |
790 | if( cmd->cmd_len == 10 ) { | |
791 | mbox->m_out.numsectors = | |
792 | (u32)cmd->cmnd[8] | | |
793 | ((u32)cmd->cmnd[7] << 8); | |
794 | mbox->m_out.lba = | |
795 | ((u32)cmd->cmnd[2] << 24) | | |
796 | ((u32)cmd->cmnd[3] << 16) | | |
797 | ((u32)cmd->cmnd[4] << 8) | | |
798 | (u32)cmd->cmnd[5]; | |
799 | ||
800 | #if MEGA_HAVE_STATS | |
801 | if (*cmd->cmnd == READ_10) { | |
802 | adapter->nreads[ldrv_num%0x80]++; | |
803 | adapter->nreadblocks[ldrv_num%0x80] += | |
804 | mbox->m_out.numsectors; | |
805 | } else { | |
806 | adapter->nwrites[ldrv_num%0x80]++; | |
807 | adapter->nwriteblocks[ldrv_num%0x80] += | |
808 | mbox->m_out.numsectors; | |
809 | } | |
810 | #endif | |
811 | } | |
812 | ||
813 | /* | |
814 | * 12-byte READ(0xA8) or WRITE(0xAA) cdb | |
815 | */ | |
816 | if( cmd->cmd_len == 12 ) { | |
817 | mbox->m_out.lba = | |
818 | ((u32)cmd->cmnd[2] << 24) | | |
819 | ((u32)cmd->cmnd[3] << 16) | | |
820 | ((u32)cmd->cmnd[4] << 8) | | |
821 | (u32)cmd->cmnd[5]; | |
822 | ||
823 | mbox->m_out.numsectors = | |
824 | ((u32)cmd->cmnd[6] << 24) | | |
825 | ((u32)cmd->cmnd[7] << 16) | | |
826 | ((u32)cmd->cmnd[8] << 8) | | |
827 | (u32)cmd->cmnd[9]; | |
828 | ||
829 | #if MEGA_HAVE_STATS | |
830 | if (*cmd->cmnd == READ_12) { | |
831 | adapter->nreads[ldrv_num%0x80]++; | |
832 | adapter->nreadblocks[ldrv_num%0x80] += | |
833 | mbox->m_out.numsectors; | |
834 | } else { | |
835 | adapter->nwrites[ldrv_num%0x80]++; | |
836 | adapter->nwriteblocks[ldrv_num%0x80] += | |
837 | mbox->m_out.numsectors; | |
838 | } | |
839 | #endif | |
840 | } | |
841 | ||
842 | /* | |
843 | * If it is a read command | |
844 | */ | |
845 | if( (*cmd->cmnd & 0x0F) == 0x08 ) { | |
846 | scb->dma_direction = PCI_DMA_FROMDEVICE; | |
847 | } | |
848 | else { | |
849 | scb->dma_direction = PCI_DMA_TODEVICE; | |
850 | } | |
851 | ||
852 | /* Calculate Scatter-Gather info */ | |
853 | mbox->m_out.numsgelements = mega_build_sglist(adapter, scb, | |
9d5d93e3 | 854 | (u32 *)&mbox->m_out.xferaddr, &seg); |
1da177e4 LT |
855 | |
856 | return scb; | |
857 | ||
858 | #if MEGA_HAVE_CLUSTERING | |
859 | case RESERVE: /* Fall through */ | |
860 | case RELEASE: | |
861 | ||
862 | /* | |
863 | * Do we support clustering and is the support enabled | |
864 | */ | |
865 | if( ! adapter->has_cluster ) { | |
866 | ||
867 | cmd->result = (DID_BAD_TARGET << 16); | |
868 | cmd->scsi_done(cmd); | |
869 | return NULL; | |
870 | } | |
871 | ||
872 | /* Allocate a SCB and initialize mailbox */ | |
873 | if(!(scb = mega_allocate_scb(adapter, cmd))) { | |
874 | *busy = 1; | |
875 | return NULL; | |
876 | } | |
877 | ||
878 | scb->raw_mbox[0] = MEGA_CLUSTER_CMD; | |
879 | scb->raw_mbox[2] = ( *cmd->cmnd == RESERVE ) ? | |
880 | MEGA_RESERVE_LD : MEGA_RELEASE_LD; | |
881 | ||
882 | scb->raw_mbox[3] = ldrv_num; | |
883 | ||
884 | scb->dma_direction = PCI_DMA_NONE; | |
885 | ||
886 | return scb; | |
887 | #endif | |
888 | ||
889 | default: | |
890 | cmd->result = (DID_BAD_TARGET << 16); | |
891 | cmd->scsi_done(cmd); | |
892 | return NULL; | |
893 | } | |
894 | } | |
895 | ||
896 | /* | |
897 | * Passthru drive commands | |
898 | */ | |
899 | else { | |
900 | /* Allocate a SCB and initialize passthru */ | |
901 | if(!(scb = mega_allocate_scb(adapter, cmd))) { | |
902 | *busy = 1; | |
903 | return NULL; | |
904 | } | |
905 | ||
906 | mbox = (mbox_t *)scb->raw_mbox; | |
907 | memset(mbox, 0, sizeof(scb->raw_mbox)); | |
908 | ||
909 | if( adapter->support_ext_cdb ) { | |
910 | ||
911 | epthru = mega_prepare_extpassthru(adapter, scb, cmd, | |
912 | channel, target); | |
913 | ||
914 | mbox->m_out.cmd = MEGA_MBOXCMD_EXTPTHRU; | |
915 | ||
916 | mbox->m_out.xferaddr = scb->epthru_dma_addr; | |
917 | ||
918 | } | |
919 | else { | |
920 | ||
921 | pthru = mega_prepare_passthru(adapter, scb, cmd, | |
922 | channel, target); | |
923 | ||
924 | /* Initialize mailbox */ | |
925 | if( adapter->has_64bit_addr ) { | |
926 | mbox->m_out.cmd = MEGA_MBOXCMD_PASSTHRU64; | |
927 | } | |
928 | else { | |
929 | mbox->m_out.cmd = MEGA_MBOXCMD_PASSTHRU; | |
930 | } | |
931 | ||
932 | mbox->m_out.xferaddr = scb->pthru_dma_addr; | |
933 | ||
934 | } | |
935 | return scb; | |
936 | } | |
937 | return NULL; | |
938 | } | |
939 | ||
940 | ||
941 | /** | |
942 | * mega_prepare_passthru() | |
943 | * @adapter - pointer to our soft state | |
944 | * @scb - our scsi control block | |
945 | * @cmd - scsi command from the mid-layer | |
946 | * @channel - actual channel on the controller | |
947 | * @target - actual id on the controller. | |
948 | * | |
949 | * prepare a command for the scsi physical devices. | |
950 | */ | |
951 | static mega_passthru * | |
952 | mega_prepare_passthru(adapter_t *adapter, scb_t *scb, Scsi_Cmnd *cmd, | |
953 | int channel, int target) | |
954 | { | |
955 | mega_passthru *pthru; | |
956 | ||
957 | pthru = scb->pthru; | |
958 | memset(pthru, 0, sizeof (mega_passthru)); | |
959 | ||
960 | /* 0=6sec/1=60sec/2=10min/3=3hrs */ | |
961 | pthru->timeout = 2; | |
962 | ||
963 | pthru->ars = 1; | |
964 | pthru->reqsenselen = 14; | |
965 | pthru->islogical = 0; | |
966 | ||
967 | pthru->channel = (adapter->flag & BOARD_40LD) ? 0 : channel; | |
968 | ||
969 | pthru->target = (adapter->flag & BOARD_40LD) ? | |
970 | (channel << 4) | target : target; | |
971 | ||
972 | pthru->cdblen = cmd->cmd_len; | |
973 | pthru->logdrv = cmd->device->lun; | |
974 | ||
975 | memcpy(pthru->cdb, cmd->cmnd, cmd->cmd_len); | |
976 | ||
977 | /* Not sure about the direction */ | |
978 | scb->dma_direction = PCI_DMA_BIDIRECTIONAL; | |
979 | ||
980 | /* Special Code for Handling READ_CAPA/ INQ using bounce buffers */ | |
981 | switch (cmd->cmnd[0]) { | |
982 | case INQUIRY: | |
983 | case READ_CAPACITY: | |
984 | if(!(adapter->flag & (1L << cmd->device->channel))) { | |
985 | ||
986 | printk(KERN_NOTICE | |
987 | "scsi%d: scanning scsi channel %d [P%d] ", | |
988 | adapter->host->host_no, | |
989 | cmd->device->channel, channel); | |
990 | printk("for physical devices.\n"); | |
991 | ||
992 | adapter->flag |= (1L << cmd->device->channel); | |
993 | } | |
994 | /* Fall through */ | |
995 | default: | |
996 | pthru->numsgelements = mega_build_sglist(adapter, scb, | |
997 | &pthru->dataxferaddr, &pthru->dataxferlen); | |
998 | break; | |
999 | } | |
1000 | return pthru; | |
1001 | } | |
1002 | ||
1003 | ||
1004 | /** | |
1005 | * mega_prepare_extpassthru() | |
1006 | * @adapter - pointer to our soft state | |
1007 | * @scb - our scsi control block | |
1008 | * @cmd - scsi command from the mid-layer | |
1009 | * @channel - actual channel on the controller | |
1010 | * @target - actual id on the controller. | |
1011 | * | |
1012 | * prepare a command for the scsi physical devices. This rountine prepares | |
1013 | * commands for devices which can take extended CDBs (>10 bytes) | |
1014 | */ | |
1015 | static mega_ext_passthru * | |
1016 | mega_prepare_extpassthru(adapter_t *adapter, scb_t *scb, Scsi_Cmnd *cmd, | |
1017 | int channel, int target) | |
1018 | { | |
1019 | mega_ext_passthru *epthru; | |
1020 | ||
1021 | epthru = scb->epthru; | |
1022 | memset(epthru, 0, sizeof(mega_ext_passthru)); | |
1023 | ||
1024 | /* 0=6sec/1=60sec/2=10min/3=3hrs */ | |
1025 | epthru->timeout = 2; | |
1026 | ||
1027 | epthru->ars = 1; | |
1028 | epthru->reqsenselen = 14; | |
1029 | epthru->islogical = 0; | |
1030 | ||
1031 | epthru->channel = (adapter->flag & BOARD_40LD) ? 0 : channel; | |
1032 | epthru->target = (adapter->flag & BOARD_40LD) ? | |
1033 | (channel << 4) | target : target; | |
1034 | ||
1035 | epthru->cdblen = cmd->cmd_len; | |
1036 | epthru->logdrv = cmd->device->lun; | |
1037 | ||
1038 | memcpy(epthru->cdb, cmd->cmnd, cmd->cmd_len); | |
1039 | ||
1040 | /* Not sure about the direction */ | |
1041 | scb->dma_direction = PCI_DMA_BIDIRECTIONAL; | |
1042 | ||
1043 | switch(cmd->cmnd[0]) { | |
1044 | case INQUIRY: | |
1045 | case READ_CAPACITY: | |
1046 | if(!(adapter->flag & (1L << cmd->device->channel))) { | |
1047 | ||
1048 | printk(KERN_NOTICE | |
1049 | "scsi%d: scanning scsi channel %d [P%d] ", | |
1050 | adapter->host->host_no, | |
1051 | cmd->device->channel, channel); | |
1052 | printk("for physical devices.\n"); | |
1053 | ||
1054 | adapter->flag |= (1L << cmd->device->channel); | |
1055 | } | |
1056 | /* Fall through */ | |
1057 | default: | |
1058 | epthru->numsgelements = mega_build_sglist(adapter, scb, | |
1059 | &epthru->dataxferaddr, &epthru->dataxferlen); | |
1060 | break; | |
1061 | } | |
1062 | ||
1063 | return epthru; | |
1064 | } | |
1065 | ||
1066 | static void | |
1067 | __mega_runpendq(adapter_t *adapter) | |
1068 | { | |
1069 | scb_t *scb; | |
1070 | struct list_head *pos, *next; | |
1071 | ||
1072 | /* Issue any pending commands to the card */ | |
1073 | list_for_each_safe(pos, next, &adapter->pending_list) { | |
1074 | ||
1075 | scb = list_entry(pos, scb_t, list); | |
1076 | ||
1077 | if( !(scb->state & SCB_ISSUED) ) { | |
1078 | ||
1079 | if( issue_scb(adapter, scb) != 0 ) | |
1080 | return; | |
1081 | } | |
1082 | } | |
1083 | ||
1084 | return; | |
1085 | } | |
1086 | ||
1087 | ||
1088 | /** | |
1089 | * issue_scb() | |
1090 | * @adapter - pointer to our soft state | |
1091 | * @scb - scsi control block | |
1092 | * | |
1093 | * Post a command to the card if the mailbox is available, otherwise return | |
1094 | * busy. We also take the scb from the pending list if the mailbox is | |
1095 | * available. | |
1096 | */ | |
1097 | static int | |
1098 | issue_scb(adapter_t *adapter, scb_t *scb) | |
1099 | { | |
1100 | volatile mbox64_t *mbox64 = adapter->mbox64; | |
1101 | volatile mbox_t *mbox = adapter->mbox; | |
1102 | unsigned int i = 0; | |
1103 | ||
1104 | if(unlikely(mbox->m_in.busy)) { | |
1105 | do { | |
1106 | udelay(1); | |
1107 | i++; | |
1108 | } while( mbox->m_in.busy && (i < max_mbox_busy_wait) ); | |
1109 | ||
1110 | if(mbox->m_in.busy) return -1; | |
1111 | } | |
1112 | ||
1113 | /* Copy mailbox data into host structure */ | |
1114 | memcpy((char *)&mbox->m_out, (char *)scb->raw_mbox, | |
1115 | sizeof(struct mbox_out)); | |
1116 | ||
1117 | mbox->m_out.cmdid = scb->idx; /* Set cmdid */ | |
1118 | mbox->m_in.busy = 1; /* Set busy */ | |
1119 | ||
1120 | ||
1121 | /* | |
1122 | * Increment the pending queue counter | |
1123 | */ | |
1124 | atomic_inc(&adapter->pend_cmds); | |
1125 | ||
1126 | switch (mbox->m_out.cmd) { | |
1127 | case MEGA_MBOXCMD_LREAD64: | |
1128 | case MEGA_MBOXCMD_LWRITE64: | |
1129 | case MEGA_MBOXCMD_PASSTHRU64: | |
1130 | case MEGA_MBOXCMD_EXTPTHRU: | |
1131 | mbox64->xfer_segment_lo = mbox->m_out.xferaddr; | |
1132 | mbox64->xfer_segment_hi = 0; | |
1133 | mbox->m_out.xferaddr = 0xFFFFFFFF; | |
1134 | break; | |
1135 | default: | |
1136 | mbox64->xfer_segment_lo = 0; | |
1137 | mbox64->xfer_segment_hi = 0; | |
1138 | } | |
1139 | ||
1140 | /* | |
1141 | * post the command | |
1142 | */ | |
1143 | scb->state |= SCB_ISSUED; | |
1144 | ||
1145 | if( likely(adapter->flag & BOARD_MEMMAP) ) { | |
1146 | mbox->m_in.poll = 0; | |
1147 | mbox->m_in.ack = 0; | |
1148 | WRINDOOR(adapter, adapter->mbox_dma | 0x1); | |
1149 | } | |
1150 | else { | |
1151 | irq_enable(adapter); | |
1152 | issue_command(adapter); | |
1153 | } | |
1154 | ||
1155 | return 0; | |
1156 | } | |
1157 | ||
1158 | /* | |
1159 | * Wait until the controller's mailbox is available | |
1160 | */ | |
1161 | static inline int | |
1162 | mega_busywait_mbox (adapter_t *adapter) | |
1163 | { | |
1164 | if (adapter->mbox->m_in.busy) | |
1165 | return __mega_busywait_mbox(adapter); | |
1166 | return 0; | |
1167 | } | |
1168 | ||
1169 | /** | |
1170 | * issue_scb_block() | |
1171 | * @adapter - pointer to our soft state | |
1172 | * @raw_mbox - the mailbox | |
1173 | * | |
1174 | * Issue a scb in synchronous and non-interrupt mode | |
1175 | */ | |
1176 | static int | |
1177 | issue_scb_block(adapter_t *adapter, u_char *raw_mbox) | |
1178 | { | |
1179 | volatile mbox64_t *mbox64 = adapter->mbox64; | |
1180 | volatile mbox_t *mbox = adapter->mbox; | |
1181 | u8 byte; | |
1182 | ||
1183 | /* Wait until mailbox is free */ | |
1184 | if(mega_busywait_mbox (adapter)) | |
1185 | goto bug_blocked_mailbox; | |
1186 | ||
1187 | /* Copy mailbox data into host structure */ | |
1188 | memcpy((char *) mbox, raw_mbox, sizeof(struct mbox_out)); | |
1189 | mbox->m_out.cmdid = 0xFE; | |
1190 | mbox->m_in.busy = 1; | |
1191 | ||
1192 | switch (raw_mbox[0]) { | |
1193 | case MEGA_MBOXCMD_LREAD64: | |
1194 | case MEGA_MBOXCMD_LWRITE64: | |
1195 | case MEGA_MBOXCMD_PASSTHRU64: | |
1196 | case MEGA_MBOXCMD_EXTPTHRU: | |
1197 | mbox64->xfer_segment_lo = mbox->m_out.xferaddr; | |
1198 | mbox64->xfer_segment_hi = 0; | |
1199 | mbox->m_out.xferaddr = 0xFFFFFFFF; | |
1200 | break; | |
1201 | default: | |
1202 | mbox64->xfer_segment_lo = 0; | |
1203 | mbox64->xfer_segment_hi = 0; | |
1204 | } | |
1205 | ||
1206 | if( likely(adapter->flag & BOARD_MEMMAP) ) { | |
1207 | mbox->m_in.poll = 0; | |
1208 | mbox->m_in.ack = 0; | |
1209 | mbox->m_in.numstatus = 0xFF; | |
1210 | mbox->m_in.status = 0xFF; | |
1211 | WRINDOOR(adapter, adapter->mbox_dma | 0x1); | |
1212 | ||
1213 | while((volatile u8)mbox->m_in.numstatus == 0xFF) | |
1214 | cpu_relax(); | |
1215 | ||
1216 | mbox->m_in.numstatus = 0xFF; | |
1217 | ||
1218 | while( (volatile u8)mbox->m_in.poll != 0x77 ) | |
1219 | cpu_relax(); | |
1220 | ||
1221 | mbox->m_in.poll = 0; | |
1222 | mbox->m_in.ack = 0x77; | |
1223 | ||
1224 | WRINDOOR(adapter, adapter->mbox_dma | 0x2); | |
1225 | ||
1226 | while(RDINDOOR(adapter) & 0x2) | |
1227 | cpu_relax(); | |
1228 | } | |
1229 | else { | |
1230 | irq_disable(adapter); | |
1231 | issue_command(adapter); | |
1232 | ||
1233 | while (!((byte = irq_state(adapter)) & INTR_VALID)) | |
1234 | cpu_relax(); | |
1235 | ||
1236 | set_irq_state(adapter, byte); | |
1237 | irq_enable(adapter); | |
1238 | irq_ack(adapter); | |
1239 | } | |
1240 | ||
1241 | return mbox->m_in.status; | |
1242 | ||
1243 | bug_blocked_mailbox: | |
1244 | printk(KERN_WARNING "megaraid: Blocked mailbox......!!\n"); | |
1245 | udelay (1000); | |
1246 | return -1; | |
1247 | } | |
1248 | ||
1249 | ||
1250 | /** | |
1251 | * megaraid_isr_iomapped() | |
1252 | * @irq - irq | |
1253 | * @devp - pointer to our soft state | |
1da177e4 LT |
1254 | * |
1255 | * Interrupt service routine for io-mapped controllers. | |
1256 | * Find out if our device is interrupting. If yes, acknowledge the interrupt | |
1257 | * and service the completed commands. | |
1258 | */ | |
1259 | static irqreturn_t | |
7d12e780 | 1260 | megaraid_isr_iomapped(int irq, void *devp) |
1da177e4 LT |
1261 | { |
1262 | adapter_t *adapter = devp; | |
1263 | unsigned long flags; | |
1264 | u8 status; | |
1265 | u8 nstatus; | |
1266 | u8 completed[MAX_FIRMWARE_STATUS]; | |
1267 | u8 byte; | |
1268 | int handled = 0; | |
1269 | ||
1270 | ||
1271 | /* | |
1272 | * loop till F/W has more commands for us to complete. | |
1273 | */ | |
1274 | spin_lock_irqsave(&adapter->lock, flags); | |
1275 | ||
1276 | do { | |
1277 | /* Check if a valid interrupt is pending */ | |
1278 | byte = irq_state(adapter); | |
1279 | if( (byte & VALID_INTR_BYTE) == 0 ) { | |
1280 | /* | |
1281 | * No more pending commands | |
1282 | */ | |
1283 | goto out_unlock; | |
1284 | } | |
1285 | set_irq_state(adapter, byte); | |
1286 | ||
1287 | while((nstatus = (volatile u8)adapter->mbox->m_in.numstatus) | |
1288 | == 0xFF) | |
1289 | cpu_relax(); | |
1290 | adapter->mbox->m_in.numstatus = 0xFF; | |
1291 | ||
1292 | status = adapter->mbox->m_in.status; | |
1293 | ||
1294 | /* | |
1295 | * decrement the pending queue counter | |
1296 | */ | |
1297 | atomic_sub(nstatus, &adapter->pend_cmds); | |
1298 | ||
1299 | memcpy(completed, (void *)adapter->mbox->m_in.completed, | |
1300 | nstatus); | |
1301 | ||
1302 | /* Acknowledge interrupt */ | |
1303 | irq_ack(adapter); | |
1304 | ||
1305 | mega_cmd_done(adapter, completed, nstatus, status); | |
1306 | ||
1307 | mega_rundoneq(adapter); | |
1308 | ||
1309 | handled = 1; | |
1310 | ||
1311 | /* Loop through any pending requests */ | |
1312 | if(atomic_read(&adapter->quiescent) == 0) { | |
1313 | mega_runpendq(adapter); | |
1314 | } | |
1315 | ||
1316 | } while(1); | |
1317 | ||
1318 | out_unlock: | |
1319 | ||
1320 | spin_unlock_irqrestore(&adapter->lock, flags); | |
1321 | ||
1322 | return IRQ_RETVAL(handled); | |
1323 | } | |
1324 | ||
1325 | ||
1326 | /** | |
1327 | * megaraid_isr_memmapped() | |
1328 | * @irq - irq | |
1329 | * @devp - pointer to our soft state | |
1da177e4 LT |
1330 | * |
1331 | * Interrupt service routine for memory-mapped controllers. | |
1332 | * Find out if our device is interrupting. If yes, acknowledge the interrupt | |
1333 | * and service the completed commands. | |
1334 | */ | |
1335 | static irqreturn_t | |
7d12e780 | 1336 | megaraid_isr_memmapped(int irq, void *devp) |
1da177e4 LT |
1337 | { |
1338 | adapter_t *adapter = devp; | |
1339 | unsigned long flags; | |
1340 | u8 status; | |
1341 | u32 dword = 0; | |
1342 | u8 nstatus; | |
1343 | u8 completed[MAX_FIRMWARE_STATUS]; | |
1344 | int handled = 0; | |
1345 | ||
1346 | ||
1347 | /* | |
1348 | * loop till F/W has more commands for us to complete. | |
1349 | */ | |
1350 | spin_lock_irqsave(&adapter->lock, flags); | |
1351 | ||
1352 | do { | |
1353 | /* Check if a valid interrupt is pending */ | |
1354 | dword = RDOUTDOOR(adapter); | |
1355 | if(dword != 0x10001234) { | |
1356 | /* | |
1357 | * No more pending commands | |
1358 | */ | |
1359 | goto out_unlock; | |
1360 | } | |
1361 | WROUTDOOR(adapter, 0x10001234); | |
1362 | ||
1363 | while((nstatus = (volatile u8)adapter->mbox->m_in.numstatus) | |
1364 | == 0xFF) { | |
1365 | cpu_relax(); | |
1366 | } | |
1367 | adapter->mbox->m_in.numstatus = 0xFF; | |
1368 | ||
1369 | status = adapter->mbox->m_in.status; | |
1370 | ||
1371 | /* | |
1372 | * decrement the pending queue counter | |
1373 | */ | |
1374 | atomic_sub(nstatus, &adapter->pend_cmds); | |
1375 | ||
1376 | memcpy(completed, (void *)adapter->mbox->m_in.completed, | |
1377 | nstatus); | |
1378 | ||
1379 | /* Acknowledge interrupt */ | |
1380 | WRINDOOR(adapter, 0x2); | |
1381 | ||
1382 | handled = 1; | |
1383 | ||
00769ec4 JG |
1384 | while( RDINDOOR(adapter) & 0x02 ) |
1385 | cpu_relax(); | |
1da177e4 LT |
1386 | |
1387 | mega_cmd_done(adapter, completed, nstatus, status); | |
1388 | ||
1389 | mega_rundoneq(adapter); | |
1390 | ||
1391 | /* Loop through any pending requests */ | |
1392 | if(atomic_read(&adapter->quiescent) == 0) { | |
1393 | mega_runpendq(adapter); | |
1394 | } | |
1395 | ||
1396 | } while(1); | |
1397 | ||
1398 | out_unlock: | |
1399 | ||
1400 | spin_unlock_irqrestore(&adapter->lock, flags); | |
1401 | ||
1402 | return IRQ_RETVAL(handled); | |
1403 | } | |
1404 | /** | |
1405 | * mega_cmd_done() | |
1406 | * @adapter - pointer to our soft state | |
1407 | * @completed - array of ids of completed commands | |
1408 | * @nstatus - number of completed commands | |
1409 | * @status - status of the last command completed | |
1410 | * | |
8e572bab | 1411 | * Complete the commands and call the scsi mid-layer callback hooks. |
1da177e4 LT |
1412 | */ |
1413 | static void | |
1414 | mega_cmd_done(adapter_t *adapter, u8 completed[], int nstatus, int status) | |
1415 | { | |
1416 | mega_ext_passthru *epthru = NULL; | |
1417 | struct scatterlist *sgl; | |
1418 | Scsi_Cmnd *cmd = NULL; | |
1419 | mega_passthru *pthru = NULL; | |
1420 | mbox_t *mbox = NULL; | |
1421 | u8 c; | |
1422 | scb_t *scb; | |
1423 | int islogical; | |
1424 | int cmdid; | |
1425 | int i; | |
1426 | ||
1427 | /* | |
1428 | * for all the commands completed, call the mid-layer callback routine | |
1429 | * and free the scb. | |
1430 | */ | |
1431 | for( i = 0; i < nstatus; i++ ) { | |
1432 | ||
1433 | cmdid = completed[i]; | |
1434 | ||
0f2bb84d CH |
1435 | /* |
1436 | * Only free SCBs for the commands coming down from the | |
1437 | * mid-layer, not for which were issued internally | |
1438 | * | |
1439 | * For internal command, restore the status returned by the | |
1440 | * firmware so that user can interpret it. | |
1441 | */ | |
1442 | if (cmdid == CMDID_INT_CMDS) { | |
1da177e4 | 1443 | scb = &adapter->int_scb; |
1da177e4 | 1444 | |
0f2bb84d CH |
1445 | list_del_init(&scb->list); |
1446 | scb->state = SCB_FREE; | |
1da177e4 | 1447 | |
0f2bb84d CH |
1448 | adapter->int_status = status; |
1449 | complete(&adapter->int_waitq); | |
1450 | } else { | |
1da177e4 LT |
1451 | scb = &adapter->scb_list[cmdid]; |
1452 | ||
1453 | /* | |
1454 | * Make sure f/w has completed a valid command | |
1455 | */ | |
1456 | if( !(scb->state & SCB_ISSUED) || scb->cmd == NULL ) { | |
1457 | printk(KERN_CRIT | |
1458 | "megaraid: invalid command "); | |
1459 | printk("Id %d, scb->state:%x, scsi cmd:%p\n", | |
1460 | cmdid, scb->state, scb->cmd); | |
1461 | ||
1462 | continue; | |
1463 | } | |
1464 | ||
1465 | /* | |
1466 | * Was a abort issued for this command | |
1467 | */ | |
1468 | if( scb->state & SCB_ABORT ) { | |
1469 | ||
1470 | printk(KERN_WARNING | |
5cd049a5 CH |
1471 | "megaraid: aborted cmd [%x] complete.\n", |
1472 | scb->idx); | |
1da177e4 LT |
1473 | |
1474 | scb->cmd->result = (DID_ABORT << 16); | |
1475 | ||
1476 | list_add_tail(SCSI_LIST(scb->cmd), | |
1477 | &adapter->completed_list); | |
1478 | ||
1479 | mega_free_scb(adapter, scb); | |
1480 | ||
1481 | continue; | |
1482 | } | |
1483 | ||
1484 | /* | |
1485 | * Was a reset issued for this command | |
1486 | */ | |
1487 | if( scb->state & SCB_RESET ) { | |
1488 | ||
1489 | printk(KERN_WARNING | |
5cd049a5 CH |
1490 | "megaraid: reset cmd [%x] complete.\n", |
1491 | scb->idx); | |
1da177e4 LT |
1492 | |
1493 | scb->cmd->result = (DID_RESET << 16); | |
1494 | ||
1495 | list_add_tail(SCSI_LIST(scb->cmd), | |
1496 | &adapter->completed_list); | |
1497 | ||
1498 | mega_free_scb (adapter, scb); | |
1499 | ||
1500 | continue; | |
1501 | } | |
1502 | ||
1503 | cmd = scb->cmd; | |
1504 | pthru = scb->pthru; | |
1505 | epthru = scb->epthru; | |
1506 | mbox = (mbox_t *)scb->raw_mbox; | |
1507 | ||
1508 | #if MEGA_HAVE_STATS | |
1509 | { | |
1510 | ||
1511 | int logdrv = mbox->m_out.logdrv; | |
1512 | ||
1513 | islogical = adapter->logdrv_chan[cmd->channel]; | |
1514 | /* | |
1515 | * Maintain an error counter for the logical drive. | |
1516 | * Some application like SNMP agent need such | |
1517 | * statistics | |
1518 | */ | |
1519 | if( status && islogical && (cmd->cmnd[0] == READ_6 || | |
1520 | cmd->cmnd[0] == READ_10 || | |
1521 | cmd->cmnd[0] == READ_12)) { | |
1522 | /* | |
1523 | * Logical drive number increases by 0x80 when | |
1524 | * a logical drive is deleted | |
1525 | */ | |
1526 | adapter->rd_errors[logdrv%0x80]++; | |
1527 | } | |
1528 | ||
1529 | if( status && islogical && (cmd->cmnd[0] == WRITE_6 || | |
1530 | cmd->cmnd[0] == WRITE_10 || | |
1531 | cmd->cmnd[0] == WRITE_12)) { | |
1532 | /* | |
1533 | * Logical drive number increases by 0x80 when | |
1534 | * a logical drive is deleted | |
1535 | */ | |
1536 | adapter->wr_errors[logdrv%0x80]++; | |
1537 | } | |
1538 | ||
1539 | } | |
1540 | #endif | |
1541 | } | |
1542 | ||
1543 | /* | |
1544 | * Do not return the presence of hard disk on the channel so, | |
1545 | * inquiry sent, and returned data==hard disk or removable | |
1546 | * hard disk and not logical, request should return failure! - | |
1547 | * PJ | |
1548 | */ | |
1549 | islogical = adapter->logdrv_chan[cmd->device->channel]; | |
1550 | if( cmd->cmnd[0] == INQUIRY && !islogical ) { | |
1551 | ||
3f6270ef | 1552 | sgl = scsi_sglist(cmd); |
45711f1a JA |
1553 | if( sg_page(sgl) ) { |
1554 | c = *(unsigned char *) sg_virt(&sgl[0]); | |
3f6270ef FT |
1555 | } else { |
1556 | printk(KERN_WARNING | |
1557 | "megaraid: invalid sg.\n"); | |
1558 | c = 0; | |
1da177e4 LT |
1559 | } |
1560 | ||
1561 | if(IS_RAID_CH(adapter, cmd->device->channel) && | |
1562 | ((c & 0x1F ) == TYPE_DISK)) { | |
1563 | status = 0xF0; | |
1564 | } | |
1565 | } | |
1566 | ||
1567 | /* clear result; otherwise, success returns corrupt value */ | |
1568 | cmd->result = 0; | |
1569 | ||
1570 | /* Convert MegaRAID status to Linux error code */ | |
1571 | switch (status) { | |
1572 | case 0x00: /* SUCCESS , i.e. SCSI_STATUS_GOOD */ | |
1573 | cmd->result |= (DID_OK << 16); | |
1574 | break; | |
1575 | ||
1576 | case 0x02: /* ERROR_ABORTED, i.e. | |
1577 | SCSI_STATUS_CHECK_CONDITION */ | |
1578 | ||
1579 | /* set sense_buffer and result fields */ | |
1580 | if( mbox->m_out.cmd == MEGA_MBOXCMD_PASSTHRU || | |
1581 | mbox->m_out.cmd == MEGA_MBOXCMD_PASSTHRU64 ) { | |
1582 | ||
1583 | memcpy(cmd->sense_buffer, pthru->reqsensearea, | |
1584 | 14); | |
1585 | ||
1586 | cmd->result = (DRIVER_SENSE << 24) | | |
1587 | (DID_OK << 16) | | |
1588 | (CHECK_CONDITION << 1); | |
1589 | } | |
1590 | else { | |
1591 | if (mbox->m_out.cmd == MEGA_MBOXCMD_EXTPTHRU) { | |
1592 | ||
1593 | memcpy(cmd->sense_buffer, | |
1594 | epthru->reqsensearea, 14); | |
1595 | ||
1596 | cmd->result = (DRIVER_SENSE << 24) | | |
1597 | (DID_OK << 16) | | |
1598 | (CHECK_CONDITION << 1); | |
1599 | } else { | |
1600 | cmd->sense_buffer[0] = 0x70; | |
1601 | cmd->sense_buffer[2] = ABORTED_COMMAND; | |
1602 | cmd->result |= (CHECK_CONDITION << 1); | |
1603 | } | |
1604 | } | |
1605 | break; | |
1606 | ||
1607 | case 0x08: /* ERR_DEST_DRIVE_FAILED, i.e. | |
1608 | SCSI_STATUS_BUSY */ | |
1609 | cmd->result |= (DID_BUS_BUSY << 16) | status; | |
1610 | break; | |
1611 | ||
1612 | default: | |
1613 | #if MEGA_HAVE_CLUSTERING | |
1614 | /* | |
1615 | * If TEST_UNIT_READY fails, we know | |
1616 | * MEGA_RESERVATION_STATUS failed | |
1617 | */ | |
1618 | if( cmd->cmnd[0] == TEST_UNIT_READY ) { | |
1619 | cmd->result |= (DID_ERROR << 16) | | |
1620 | (RESERVATION_CONFLICT << 1); | |
1621 | } | |
1622 | else | |
1623 | /* | |
1624 | * Error code returned is 1 if Reserve or Release | |
1625 | * failed or the input parameter is invalid | |
1626 | */ | |
1627 | if( status == 1 && | |
1628 | (cmd->cmnd[0] == RESERVE || | |
1629 | cmd->cmnd[0] == RELEASE) ) { | |
1630 | ||
1631 | cmd->result |= (DID_ERROR << 16) | | |
1632 | (RESERVATION_CONFLICT << 1); | |
1633 | } | |
1634 | else | |
1635 | #endif | |
1636 | cmd->result |= (DID_BAD_TARGET << 16)|status; | |
1637 | } | |
1638 | ||
0f2bb84d | 1639 | mega_free_scb(adapter, scb); |
1da177e4 LT |
1640 | |
1641 | /* Add Scsi_Command to end of completed queue */ | |
1642 | list_add_tail(SCSI_LIST(cmd), &adapter->completed_list); | |
1643 | } | |
1644 | } | |
1645 | ||
1646 | ||
1647 | /* | |
1648 | * mega_runpendq() | |
1649 | * | |
1650 | * Run through the list of completed requests and finish it | |
1651 | */ | |
1652 | static void | |
1653 | mega_rundoneq (adapter_t *adapter) | |
1654 | { | |
1655 | Scsi_Cmnd *cmd; | |
1656 | struct list_head *pos; | |
1657 | ||
1658 | list_for_each(pos, &adapter->completed_list) { | |
1659 | ||
0a04137e | 1660 | struct scsi_pointer* spos = (struct scsi_pointer *)pos; |
1da177e4 LT |
1661 | |
1662 | cmd = list_entry(spos, Scsi_Cmnd, SCp); | |
1663 | cmd->scsi_done(cmd); | |
1664 | } | |
1665 | ||
1666 | INIT_LIST_HEAD(&adapter->completed_list); | |
1667 | } | |
1668 | ||
1669 | ||
1670 | /* | |
1671 | * Free a SCB structure | |
1672 | * Note: We assume the scsi commands associated with this scb is not free yet. | |
1673 | */ | |
1674 | static void | |
1675 | mega_free_scb(adapter_t *adapter, scb_t *scb) | |
1676 | { | |
1677 | switch( scb->dma_type ) { | |
1678 | ||
1679 | case MEGA_DMA_TYPE_NONE: | |
1680 | break; | |
1681 | ||
1da177e4 | 1682 | case MEGA_SGLIST: |
3f6270ef | 1683 | scsi_dma_unmap(scb->cmd); |
1da177e4 | 1684 | break; |
1da177e4 LT |
1685 | default: |
1686 | break; | |
1687 | } | |
1688 | ||
1689 | /* | |
1690 | * Remove from the pending list | |
1691 | */ | |
1692 | list_del_init(&scb->list); | |
1693 | ||
1694 | /* Link the scb back into free list */ | |
1695 | scb->state = SCB_FREE; | |
1696 | scb->cmd = NULL; | |
1697 | ||
1698 | list_add(&scb->list, &adapter->free_list); | |
1699 | } | |
1700 | ||
1701 | ||
1702 | static int | |
1703 | __mega_busywait_mbox (adapter_t *adapter) | |
1704 | { | |
1705 | volatile mbox_t *mbox = adapter->mbox; | |
1706 | long counter; | |
1707 | ||
1708 | for (counter = 0; counter < 10000; counter++) { | |
1709 | if (!mbox->m_in.busy) | |
1710 | return 0; | |
e1fa0cea AL |
1711 | udelay(100); |
1712 | cond_resched(); | |
1da177e4 LT |
1713 | } |
1714 | return -1; /* give up after 1 second */ | |
1715 | } | |
1716 | ||
1717 | /* | |
1718 | * Copies data to SGLIST | |
1719 | * Note: For 64 bit cards, we need a minimum of one SG element for read/write | |
1720 | */ | |
1721 | static int | |
1722 | mega_build_sglist(adapter_t *adapter, scb_t *scb, u32 *buf, u32 *len) | |
1723 | { | |
3f6270ef | 1724 | struct scatterlist *sg; |
1da177e4 LT |
1725 | Scsi_Cmnd *cmd; |
1726 | int sgcnt; | |
1727 | int idx; | |
1728 | ||
1729 | cmd = scb->cmd; | |
1730 | ||
1da177e4 LT |
1731 | /* |
1732 | * Copy Scatter-Gather list info into controller structure. | |
1733 | * | |
1734 | * The number of sg elements returned must not exceed our limit | |
1735 | */ | |
3f6270ef | 1736 | sgcnt = scsi_dma_map(cmd); |
1da177e4 LT |
1737 | |
1738 | scb->dma_type = MEGA_SGLIST; | |
1739 | ||
3f6270ef | 1740 | BUG_ON(sgcnt > adapter->sglen || sgcnt < 0); |
1da177e4 | 1741 | |
51c928c3 JB |
1742 | *len = 0; |
1743 | ||
d5e89385 FT |
1744 | if (scsi_sg_count(cmd) == 1 && !adapter->has_64bit_addr) { |
1745 | sg = scsi_sglist(cmd); | |
1746 | scb->dma_h_bulkdata = sg_dma_address(sg); | |
1747 | *buf = (u32)scb->dma_h_bulkdata; | |
1748 | *len = sg_dma_len(sg); | |
1749 | return 0; | |
1750 | } | |
1751 | ||
3f6270ef FT |
1752 | scsi_for_each_sg(cmd, sg, sgcnt, idx) { |
1753 | if (adapter->has_64bit_addr) { | |
1754 | scb->sgl64[idx].address = sg_dma_address(sg); | |
1755 | *len += scb->sgl64[idx].length = sg_dma_len(sg); | |
1756 | } else { | |
1757 | scb->sgl[idx].address = sg_dma_address(sg); | |
1758 | *len += scb->sgl[idx].length = sg_dma_len(sg); | |
1da177e4 LT |
1759 | } |
1760 | } | |
1761 | ||
1762 | /* Reset pointer and length fields */ | |
1763 | *buf = scb->sgl_dma_addr; | |
1764 | ||
1da177e4 LT |
1765 | /* Return count of SG requests */ |
1766 | return sgcnt; | |
1767 | } | |
1768 | ||
1769 | ||
1770 | /* | |
1771 | * mega_8_to_40ld() | |
1772 | * | |
1773 | * takes all info in AdapterInquiry structure and puts it into ProductInfo and | |
1774 | * Enquiry3 structures for later use | |
1775 | */ | |
1776 | static void | |
1777 | mega_8_to_40ld(mraid_inquiry *inquiry, mega_inquiry3 *enquiry3, | |
1778 | mega_product_info *product_info) | |
1779 | { | |
1780 | int i; | |
1781 | ||
1782 | product_info->max_commands = inquiry->adapter_info.max_commands; | |
1783 | enquiry3->rebuild_rate = inquiry->adapter_info.rebuild_rate; | |
1784 | product_info->nchannels = inquiry->adapter_info.nchannels; | |
1785 | ||
1786 | for (i = 0; i < 4; i++) { | |
1787 | product_info->fw_version[i] = | |
1788 | inquiry->adapter_info.fw_version[i]; | |
1789 | ||
1790 | product_info->bios_version[i] = | |
1791 | inquiry->adapter_info.bios_version[i]; | |
1792 | } | |
1793 | enquiry3->cache_flush_interval = | |
1794 | inquiry->adapter_info.cache_flush_interval; | |
1795 | ||
1796 | product_info->dram_size = inquiry->adapter_info.dram_size; | |
1797 | ||
1798 | enquiry3->num_ldrv = inquiry->logdrv_info.num_ldrv; | |
1799 | ||
1800 | for (i = 0; i < MAX_LOGICAL_DRIVES_8LD; i++) { | |
1801 | enquiry3->ldrv_size[i] = inquiry->logdrv_info.ldrv_size[i]; | |
1802 | enquiry3->ldrv_prop[i] = inquiry->logdrv_info.ldrv_prop[i]; | |
1803 | enquiry3->ldrv_state[i] = inquiry->logdrv_info.ldrv_state[i]; | |
1804 | } | |
1805 | ||
1806 | for (i = 0; i < (MAX_PHYSICAL_DRIVES); i++) | |
1807 | enquiry3->pdrv_state[i] = inquiry->pdrv_info.pdrv_state[i]; | |
1808 | } | |
1809 | ||
1810 | static inline void | |
1811 | mega_free_sgl(adapter_t *adapter) | |
1812 | { | |
1813 | scb_t *scb; | |
1814 | int i; | |
1815 | ||
1816 | for(i = 0; i < adapter->max_cmds; i++) { | |
1817 | ||
1818 | scb = &adapter->scb_list[i]; | |
1819 | ||
1820 | if( scb->sgl64 ) { | |
1821 | pci_free_consistent(adapter->dev, | |
1822 | sizeof(mega_sgl64) * adapter->sglen, | |
1823 | scb->sgl64, | |
1824 | scb->sgl_dma_addr); | |
1825 | ||
1826 | scb->sgl64 = NULL; | |
1827 | } | |
1828 | ||
1829 | if( scb->pthru ) { | |
1830 | pci_free_consistent(adapter->dev, sizeof(mega_passthru), | |
1831 | scb->pthru, scb->pthru_dma_addr); | |
1832 | ||
1833 | scb->pthru = NULL; | |
1834 | } | |
1835 | ||
1836 | if( scb->epthru ) { | |
1837 | pci_free_consistent(adapter->dev, | |
1838 | sizeof(mega_ext_passthru), | |
1839 | scb->epthru, scb->epthru_dma_addr); | |
1840 | ||
1841 | scb->epthru = NULL; | |
1842 | } | |
1843 | ||
1844 | } | |
1845 | } | |
1846 | ||
1847 | ||
1848 | /* | |
1849 | * Get information about the card/driver | |
1850 | */ | |
1851 | const char * | |
1852 | megaraid_info(struct Scsi_Host *host) | |
1853 | { | |
1854 | static char buffer[512]; | |
1855 | adapter_t *adapter; | |
1856 | ||
1857 | adapter = (adapter_t *)host->hostdata; | |
1858 | ||
1859 | sprintf (buffer, | |
1860 | "LSI Logic MegaRAID %s %d commands %d targs %d chans %d luns", | |
1861 | adapter->fw_version, adapter->product_info.max_commands, | |
1862 | adapter->host->max_id, adapter->host->max_channel, | |
1abf635d | 1863 | (u32)adapter->host->max_lun); |
1da177e4 LT |
1864 | return buffer; |
1865 | } | |
1866 | ||
1867 | /* | |
1868 | * Abort a previous SCSI request. Only commands on the pending list can be | |
1869 | * aborted. All the commands issued to the F/W must complete. | |
1870 | */ | |
1871 | static int | |
1872 | megaraid_abort(Scsi_Cmnd *cmd) | |
1873 | { | |
1874 | adapter_t *adapter; | |
1875 | int rval; | |
1876 | ||
1877 | adapter = (adapter_t *)cmd->device->host->hostdata; | |
1878 | ||
1879 | rval = megaraid_abort_and_reset(adapter, cmd, SCB_ABORT); | |
1880 | ||
1881 | /* | |
1882 | * This is required here to complete any completed requests | |
1883 | * to be communicated over to the mid layer. | |
1884 | */ | |
1885 | mega_rundoneq(adapter); | |
1886 | ||
1887 | return rval; | |
1888 | } | |
1889 | ||
1890 | ||
1891 | static int | |
fa4c4966 | 1892 | megaraid_reset(struct scsi_cmnd *cmd) |
1da177e4 LT |
1893 | { |
1894 | adapter_t *adapter; | |
1895 | megacmd_t mc; | |
1896 | int rval; | |
1897 | ||
1898 | adapter = (adapter_t *)cmd->device->host->hostdata; | |
1899 | ||
1900 | #if MEGA_HAVE_CLUSTERING | |
1901 | mc.cmd = MEGA_CLUSTER_CMD; | |
1902 | mc.opcode = MEGA_RESET_RESERVATIONS; | |
1903 | ||
cb0258a2 | 1904 | if( mega_internal_command(adapter, &mc, NULL) != 0 ) { |
1da177e4 LT |
1905 | printk(KERN_WARNING |
1906 | "megaraid: reservation reset failed.\n"); | |
1907 | } | |
1908 | else { | |
1909 | printk(KERN_INFO "megaraid: reservation reset.\n"); | |
1910 | } | |
1da177e4 LT |
1911 | #endif |
1912 | ||
fa4c4966 JB |
1913 | spin_lock_irq(&adapter->lock); |
1914 | ||
1da177e4 LT |
1915 | rval = megaraid_abort_and_reset(adapter, cmd, SCB_RESET); |
1916 | ||
1917 | /* | |
1918 | * This is required here to complete any completed requests | |
1919 | * to be communicated over to the mid layer. | |
1920 | */ | |
1921 | mega_rundoneq(adapter); | |
94d0e7b8 JG |
1922 | spin_unlock_irq(&adapter->lock); |
1923 | ||
fa4c4966 | 1924 | return rval; |
94d0e7b8 | 1925 | } |
1da177e4 | 1926 | |
1da177e4 LT |
1927 | /** |
1928 | * megaraid_abort_and_reset() | |
1929 | * @adapter - megaraid soft state | |
1930 | * @cmd - scsi command to be aborted or reset | |
1931 | * @aor - abort or reset flag | |
1932 | * | |
1933 | * Try to locate the scsi command in the pending queue. If found and is not | |
1934 | * issued to the controller, abort/reset it. Otherwise return failure | |
1935 | */ | |
1936 | static int | |
1937 | megaraid_abort_and_reset(adapter_t *adapter, Scsi_Cmnd *cmd, int aor) | |
1938 | { | |
1939 | struct list_head *pos, *next; | |
1940 | scb_t *scb; | |
1941 | ||
5cd049a5 CH |
1942 | printk(KERN_WARNING "megaraid: %s cmd=%x <c=%d t=%d l=%d>\n", |
1943 | (aor == SCB_ABORT)? "ABORTING":"RESET", | |
9cb78c16 HR |
1944 | cmd->cmnd[0], cmd->device->channel, |
1945 | cmd->device->id, (u32)cmd->device->lun); | |
1da177e4 LT |
1946 | |
1947 | if(list_empty(&adapter->pending_list)) | |
b6c92b7e | 1948 | return FAILED; |
1da177e4 LT |
1949 | |
1950 | list_for_each_safe(pos, next, &adapter->pending_list) { | |
1951 | ||
1952 | scb = list_entry(pos, scb_t, list); | |
1953 | ||
1954 | if (scb->cmd == cmd) { /* Found command */ | |
1955 | ||
1956 | scb->state |= aor; | |
1957 | ||
1958 | /* | |
d41ad938 NA |
1959 | * Check if this command has firmware ownership. If |
1960 | * yes, we cannot reset this command. Whenever f/w | |
1da177e4 LT |
1961 | * completes this command, we will return appropriate |
1962 | * status from ISR. | |
1963 | */ | |
1964 | if( scb->state & SCB_ISSUED ) { | |
1965 | ||
1966 | printk(KERN_WARNING | |
5cd049a5 | 1967 | "megaraid: %s[%x], fw owner.\n", |
1da177e4 | 1968 | (aor==SCB_ABORT) ? "ABORTING":"RESET", |
5cd049a5 | 1969 | scb->idx); |
1da177e4 | 1970 | |
b6c92b7e | 1971 | return FAILED; |
1da177e4 LT |
1972 | } |
1973 | else { | |
1974 | ||
1975 | /* | |
1976 | * Not yet issued! Remove from the pending | |
1977 | * list | |
1978 | */ | |
1979 | printk(KERN_WARNING | |
5cd049a5 | 1980 | "megaraid: %s-[%x], driver owner.\n", |
1da177e4 | 1981 | (aor==SCB_ABORT) ? "ABORTING":"RESET", |
5cd049a5 | 1982 | scb->idx); |
1da177e4 LT |
1983 | |
1984 | mega_free_scb(adapter, scb); | |
1985 | ||
1986 | if( aor == SCB_ABORT ) { | |
1987 | cmd->result = (DID_ABORT << 16); | |
1988 | } | |
1989 | else { | |
1990 | cmd->result = (DID_RESET << 16); | |
1991 | } | |
1992 | ||
1993 | list_add_tail(SCSI_LIST(cmd), | |
1994 | &adapter->completed_list); | |
1995 | ||
b6c92b7e | 1996 | return SUCCESS; |
1da177e4 LT |
1997 | } |
1998 | } | |
1999 | } | |
2000 | ||
b6c92b7e | 2001 | return FAILED; |
1da177e4 LT |
2002 | } |
2003 | ||
2004 | static inline int | |
2005 | make_local_pdev(adapter_t *adapter, struct pci_dev **pdev) | |
2006 | { | |
8b1fce04 | 2007 | *pdev = pci_alloc_dev(NULL); |
1da177e4 LT |
2008 | |
2009 | if( *pdev == NULL ) return -1; | |
2010 | ||
2011 | memcpy(*pdev, adapter->dev, sizeof(struct pci_dev)); | |
2012 | ||
284901a9 | 2013 | if( pci_set_dma_mask(*pdev, DMA_BIT_MASK(32)) != 0 ) { |
1da177e4 LT |
2014 | kfree(*pdev); |
2015 | return -1; | |
2016 | } | |
2017 | ||
2018 | return 0; | |
2019 | } | |
2020 | ||
2021 | static inline void | |
2022 | free_local_pdev(struct pci_dev *pdev) | |
2023 | { | |
2024 | kfree(pdev); | |
2025 | } | |
2026 | ||
2027 | /** | |
2028 | * mega_allocate_inquiry() | |
2029 | * @dma_handle - handle returned for dma address | |
2030 | * @pdev - handle to pci device | |
2031 | * | |
2032 | * allocates memory for inquiry structure | |
2033 | */ | |
2034 | static inline void * | |
2035 | mega_allocate_inquiry(dma_addr_t *dma_handle, struct pci_dev *pdev) | |
2036 | { | |
2037 | return pci_alloc_consistent(pdev, sizeof(mega_inquiry3), dma_handle); | |
2038 | } | |
2039 | ||
2040 | ||
2041 | static inline void | |
2042 | mega_free_inquiry(void *inquiry, dma_addr_t dma_handle, struct pci_dev *pdev) | |
2043 | { | |
2044 | pci_free_consistent(pdev, sizeof(mega_inquiry3), inquiry, dma_handle); | |
2045 | } | |
2046 | ||
2047 | ||
2048 | #ifdef CONFIG_PROC_FS | |
2049 | /* Following code handles /proc fs */ | |
2050 | ||
1da177e4 | 2051 | /** |
c7f079ca DH |
2052 | * proc_show_config() |
2053 | * @m - Synthetic file construction data | |
2054 | * @v - File iterator | |
1da177e4 LT |
2055 | * |
2056 | * Display configuration information about the controller. | |
2057 | */ | |
2058 | static int | |
c7f079ca | 2059 | proc_show_config(struct seq_file *m, void *v) |
1da177e4 LT |
2060 | { |
2061 | ||
c7f079ca | 2062 | adapter_t *adapter = m->private; |
1da177e4 | 2063 | |
c7f079ca | 2064 | seq_puts(m, MEGARAID_VERSION); |
1da177e4 | 2065 | if(adapter->product_info.product_name[0]) |
c7f079ca | 2066 | seq_printf(m, "%s\n", adapter->product_info.product_name); |
1da177e4 | 2067 | |
c7f079ca | 2068 | seq_puts(m, "Controller Type: "); |
1da177e4 | 2069 | |
c7f079ca DH |
2070 | if( adapter->flag & BOARD_MEMMAP ) |
2071 | seq_puts(m, "438/466/467/471/493/518/520/531/532\n"); | |
2072 | else | |
2073 | seq_puts(m, "418/428/434\n"); | |
1da177e4 | 2074 | |
c7f079ca DH |
2075 | if(adapter->flag & BOARD_40LD) |
2076 | seq_puts(m, "Controller Supports 40 Logical Drives\n"); | |
1da177e4 | 2077 | |
c7f079ca DH |
2078 | if(adapter->flag & BOARD_64BIT) |
2079 | seq_puts(m, "Controller capable of 64-bit memory addressing\n"); | |
2080 | if( adapter->has_64bit_addr ) | |
2081 | seq_puts(m, "Controller using 64-bit memory addressing\n"); | |
2082 | else | |
2083 | seq_puts(m, "Controller is not using 64-bit memory addressing\n"); | |
2084 | ||
2085 | seq_printf(m, "Base = %08lx, Irq = %d, ", | |
2086 | adapter->base, adapter->host->irq); | |
2087 | ||
2088 | seq_printf(m, "Logical Drives = %d, Channels = %d\n", | |
2089 | adapter->numldrv, adapter->product_info.nchannels); | |
2090 | ||
2091 | seq_printf(m, "Version =%s:%s, DRAM = %dMb\n", | |
2092 | adapter->fw_version, adapter->bios_version, | |
2093 | adapter->product_info.dram_size); | |
2094 | ||
2095 | seq_printf(m, "Controller Queue Depth = %d, Driver Queue Depth = %d\n", | |
2096 | adapter->product_info.max_commands, adapter->max_cmds); | |
2097 | ||
2098 | seq_printf(m, "support_ext_cdb = %d\n", adapter->support_ext_cdb); | |
2099 | seq_printf(m, "support_random_del = %d\n", adapter->support_random_del); | |
2100 | seq_printf(m, "boot_ldrv_enabled = %d\n", adapter->boot_ldrv_enabled); | |
2101 | seq_printf(m, "boot_ldrv = %d\n", adapter->boot_ldrv); | |
2102 | seq_printf(m, "boot_pdrv_enabled = %d\n", adapter->boot_pdrv_enabled); | |
2103 | seq_printf(m, "boot_pdrv_ch = %d\n", adapter->boot_pdrv_ch); | |
2104 | seq_printf(m, "boot_pdrv_tgt = %d\n", adapter->boot_pdrv_tgt); | |
2105 | seq_printf(m, "quiescent = %d\n", | |
2106 | atomic_read(&adapter->quiescent)); | |
2107 | seq_printf(m, "has_cluster = %d\n", adapter->has_cluster); | |
2108 | ||
2109 | seq_puts(m, "\nModule Parameters:\n"); | |
2110 | seq_printf(m, "max_cmd_per_lun = %d\n", max_cmd_per_lun); | |
2111 | seq_printf(m, "max_sectors_per_io = %d\n", max_sectors_per_io); | |
2112 | return 0; | |
1da177e4 LT |
2113 | } |
2114 | ||
1da177e4 | 2115 | /** |
c7f079ca DH |
2116 | * proc_show_stat() |
2117 | * @m - Synthetic file construction data | |
2118 | * @v - File iterator | |
1da177e4 | 2119 | * |
c7f079ca | 2120 | * Display statistical information about the I/O activity. |
1da177e4 LT |
2121 | */ |
2122 | static int | |
c7f079ca | 2123 | proc_show_stat(struct seq_file *m, void *v) |
1da177e4 | 2124 | { |
c7f079ca DH |
2125 | adapter_t *adapter = m->private; |
2126 | #if MEGA_HAVE_STATS | |
1da177e4 | 2127 | int i; |
c7f079ca | 2128 | #endif |
1da177e4 | 2129 | |
c7f079ca DH |
2130 | seq_puts(m, "Statistical Information for this controller\n"); |
2131 | seq_printf(m, "pend_cmds = %d\n", atomic_read(&adapter->pend_cmds)); | |
1da177e4 LT |
2132 | #if MEGA_HAVE_STATS |
2133 | for(i = 0; i < adapter->numldrv; i++) { | |
c7f079ca DH |
2134 | seq_printf(m, "Logical Drive %d:\n", i); |
2135 | seq_printf(m, "\tReads Issued = %lu, Writes Issued = %lu\n", | |
2136 | adapter->nreads[i], adapter->nwrites[i]); | |
2137 | seq_printf(m, "\tSectors Read = %lu, Sectors Written = %lu\n", | |
2138 | adapter->nreadblocks[i], adapter->nwriteblocks[i]); | |
2139 | seq_printf(m, "\tRead errors = %lu, Write errors = %lu\n\n", | |
2140 | adapter->rd_errors[i], adapter->wr_errors[i]); | |
1da177e4 LT |
2141 | } |
2142 | #else | |
c7f079ca | 2143 | seq_puts(m, "IO and error counters not compiled in driver.\n"); |
1da177e4 | 2144 | #endif |
c7f079ca | 2145 | return 0; |
1da177e4 LT |
2146 | } |
2147 | ||
2148 | ||
2149 | /** | |
c7f079ca DH |
2150 | * proc_show_mbox() |
2151 | * @m - Synthetic file construction data | |
2152 | * @v - File iterator | |
1da177e4 LT |
2153 | * |
2154 | * Display mailbox information for the last command issued. This information | |
2155 | * is good for debugging. | |
2156 | */ | |
2157 | static int | |
c7f079ca | 2158 | proc_show_mbox(struct seq_file *m, void *v) |
1da177e4 | 2159 | { |
c7f079ca | 2160 | adapter_t *adapter = m->private; |
1da177e4 | 2161 | volatile mbox_t *mbox = adapter->mbox; |
c7f079ca DH |
2162 | |
2163 | seq_puts(m, "Contents of Mail Box Structure\n"); | |
2164 | seq_printf(m, " Fw Command = 0x%02x\n", mbox->m_out.cmd); | |
2165 | seq_printf(m, " Cmd Sequence = 0x%02x\n", mbox->m_out.cmdid); | |
2166 | seq_printf(m, " No of Sectors= %04d\n", mbox->m_out.numsectors); | |
2167 | seq_printf(m, " LBA = 0x%02x\n", mbox->m_out.lba); | |
2168 | seq_printf(m, " DTA = 0x%08x\n", mbox->m_out.xferaddr); | |
2169 | seq_printf(m, " Logical Drive= 0x%02x\n", mbox->m_out.logdrv); | |
2170 | seq_printf(m, " No of SG Elmt= 0x%02x\n", mbox->m_out.numsgelements); | |
2171 | seq_printf(m, " Busy = %01x\n", mbox->m_in.busy); | |
2172 | seq_printf(m, " Status = 0x%02x\n", mbox->m_in.status); | |
2173 | return 0; | |
1da177e4 LT |
2174 | } |
2175 | ||
2176 | ||
2177 | /** | |
c7f079ca DH |
2178 | * proc_show_rebuild_rate() |
2179 | * @m - Synthetic file construction data | |
2180 | * @v - File iterator | |
1da177e4 LT |
2181 | * |
2182 | * Display current rebuild rate | |
2183 | */ | |
2184 | static int | |
c7f079ca | 2185 | proc_show_rebuild_rate(struct seq_file *m, void *v) |
1da177e4 | 2186 | { |
c7f079ca | 2187 | adapter_t *adapter = m->private; |
1da177e4 LT |
2188 | dma_addr_t dma_handle; |
2189 | caddr_t inquiry; | |
2190 | struct pci_dev *pdev; | |
1da177e4 | 2191 | |
c7f079ca DH |
2192 | if( make_local_pdev(adapter, &pdev) != 0 ) |
2193 | return 0; | |
1da177e4 | 2194 | |
c7f079ca DH |
2195 | if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL ) |
2196 | goto free_pdev; | |
1da177e4 LT |
2197 | |
2198 | if( mega_adapinq(adapter, dma_handle) != 0 ) { | |
c7f079ca | 2199 | seq_puts(m, "Adapter inquiry failed.\n"); |
1da177e4 | 2200 | printk(KERN_WARNING "megaraid: inquiry failed.\n"); |
c7f079ca | 2201 | goto free_inquiry; |
1da177e4 LT |
2202 | } |
2203 | ||
c7f079ca DH |
2204 | if( adapter->flag & BOARD_40LD ) |
2205 | seq_printf(m, "Rebuild Rate: [%d%%]\n", | |
2206 | ((mega_inquiry3 *)inquiry)->rebuild_rate); | |
2207 | else | |
2208 | seq_printf(m, "Rebuild Rate: [%d%%]\n", | |
1da177e4 | 2209 | ((mraid_ext_inquiry *) |
c7f079ca | 2210 | inquiry)->raid_inq.adapter_info.rebuild_rate); |
1da177e4 | 2211 | |
c7f079ca | 2212 | free_inquiry: |
1da177e4 | 2213 | mega_free_inquiry(inquiry, dma_handle, pdev); |
c7f079ca | 2214 | free_pdev: |
1da177e4 | 2215 | free_local_pdev(pdev); |
c7f079ca | 2216 | return 0; |
1da177e4 LT |
2217 | } |
2218 | ||
2219 | ||
2220 | /** | |
c7f079ca DH |
2221 | * proc_show_battery() |
2222 | * @m - Synthetic file construction data | |
2223 | * @v - File iterator | |
1da177e4 LT |
2224 | * |
2225 | * Display information about the battery module on the controller. | |
2226 | */ | |
2227 | static int | |
c7f079ca | 2228 | proc_show_battery(struct seq_file *m, void *v) |
1da177e4 | 2229 | { |
c7f079ca | 2230 | adapter_t *adapter = m->private; |
1da177e4 LT |
2231 | dma_addr_t dma_handle; |
2232 | caddr_t inquiry; | |
2233 | struct pci_dev *pdev; | |
c7f079ca | 2234 | u8 battery_status; |
1da177e4 | 2235 | |
c7f079ca DH |
2236 | if( make_local_pdev(adapter, &pdev) != 0 ) |
2237 | return 0; | |
1da177e4 | 2238 | |
c7f079ca DH |
2239 | if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL ) |
2240 | goto free_pdev; | |
1da177e4 LT |
2241 | |
2242 | if( mega_adapinq(adapter, dma_handle) != 0 ) { | |
91c40f24 | 2243 | seq_puts(m, "Adapter inquiry failed.\n"); |
1da177e4 | 2244 | printk(KERN_WARNING "megaraid: inquiry failed.\n"); |
c7f079ca | 2245 | goto free_inquiry; |
1da177e4 LT |
2246 | } |
2247 | ||
2248 | if( adapter->flag & BOARD_40LD ) { | |
2249 | battery_status = ((mega_inquiry3 *)inquiry)->battery_status; | |
2250 | } | |
2251 | else { | |
2252 | battery_status = ((mraid_ext_inquiry *)inquiry)-> | |
2253 | raid_inq.adapter_info.battery_status; | |
2254 | } | |
2255 | ||
2256 | /* | |
2257 | * Decode the battery status | |
2258 | */ | |
c7f079ca | 2259 | seq_printf(m, "Battery Status:[%d]", battery_status); |
1da177e4 LT |
2260 | |
2261 | if(battery_status == MEGA_BATT_CHARGE_DONE) | |
c7f079ca | 2262 | seq_puts(m, " Charge Done"); |
1da177e4 LT |
2263 | |
2264 | if(battery_status & MEGA_BATT_MODULE_MISSING) | |
c7f079ca | 2265 | seq_puts(m, " Module Missing"); |
1da177e4 LT |
2266 | |
2267 | if(battery_status & MEGA_BATT_LOW_VOLTAGE) | |
c7f079ca | 2268 | seq_puts(m, " Low Voltage"); |
1da177e4 LT |
2269 | |
2270 | if(battery_status & MEGA_BATT_TEMP_HIGH) | |
c7f079ca | 2271 | seq_puts(m, " Temperature High"); |
1da177e4 LT |
2272 | |
2273 | if(battery_status & MEGA_BATT_PACK_MISSING) | |
c7f079ca | 2274 | seq_puts(m, " Pack Missing"); |
1da177e4 LT |
2275 | |
2276 | if(battery_status & MEGA_BATT_CHARGE_INPROG) | |
c7f079ca | 2277 | seq_puts(m, " Charge In-progress"); |
1da177e4 LT |
2278 | |
2279 | if(battery_status & MEGA_BATT_CHARGE_FAIL) | |
c7f079ca | 2280 | seq_puts(m, " Charge Fail"); |
1da177e4 LT |
2281 | |
2282 | if(battery_status & MEGA_BATT_CYCLES_EXCEEDED) | |
c7f079ca | 2283 | seq_puts(m, " Cycles Exceeded"); |
1da177e4 | 2284 | |
c7f079ca | 2285 | seq_putc(m, '\n'); |
1da177e4 | 2286 | |
c7f079ca | 2287 | free_inquiry: |
1da177e4 | 2288 | mega_free_inquiry(inquiry, dma_handle, pdev); |
c7f079ca | 2289 | free_pdev: |
1da177e4 | 2290 | free_local_pdev(pdev); |
c7f079ca | 2291 | return 0; |
1da177e4 LT |
2292 | } |
2293 | ||
2294 | ||
c7f079ca DH |
2295 | /* |
2296 | * Display scsi inquiry | |
1da177e4 | 2297 | */ |
c7f079ca DH |
2298 | static void |
2299 | mega_print_inquiry(struct seq_file *m, char *scsi_inq) | |
1da177e4 | 2300 | { |
c7f079ca | 2301 | int i; |
1da177e4 | 2302 | |
c7f079ca DH |
2303 | seq_puts(m, " Vendor: "); |
2304 | seq_write(m, scsi_inq + 8, 8); | |
2305 | seq_puts(m, " Model: "); | |
2306 | seq_write(m, scsi_inq + 16, 16); | |
2307 | seq_puts(m, " Rev: "); | |
2308 | seq_write(m, scsi_inq + 32, 4); | |
2309 | seq_putc(m, '\n'); | |
1da177e4 | 2310 | |
c7f079ca DH |
2311 | i = scsi_inq[0] & 0x1f; |
2312 | seq_printf(m, " Type: %s ", scsi_device_type(i)); | |
1da177e4 | 2313 | |
c7f079ca DH |
2314 | seq_printf(m, " ANSI SCSI revision: %02x", |
2315 | scsi_inq[2] & 0x07); | |
1da177e4 | 2316 | |
c7f079ca DH |
2317 | if( (scsi_inq[2] & 0x07) == 1 && (scsi_inq[3] & 0x0f) == 1 ) |
2318 | seq_puts(m, " CCS\n"); | |
2319 | else | |
2320 | seq_putc(m, '\n'); | |
1da177e4 LT |
2321 | } |
2322 | ||
1da177e4 | 2323 | /** |
c7f079ca DH |
2324 | * proc_show_pdrv() |
2325 | * @m - Synthetic file construction data | |
1da177e4 LT |
2326 | * @page - buffer to write the data in |
2327 | * @adapter - pointer to our soft state | |
2328 | * | |
2329 | * Display information about the physical drives. | |
2330 | */ | |
2331 | static int | |
c7f079ca | 2332 | proc_show_pdrv(struct seq_file *m, adapter_t *adapter, int channel) |
1da177e4 LT |
2333 | { |
2334 | dma_addr_t dma_handle; | |
2335 | char *scsi_inq; | |
2336 | dma_addr_t scsi_inq_dma_handle; | |
2337 | caddr_t inquiry; | |
2338 | struct pci_dev *pdev; | |
2339 | u8 *pdrv_state; | |
2340 | u8 state; | |
2341 | int tgt; | |
2342 | int max_channels; | |
1da177e4 LT |
2343 | int i; |
2344 | ||
c7f079ca DH |
2345 | if( make_local_pdev(adapter, &pdev) != 0 ) |
2346 | return 0; | |
1da177e4 | 2347 | |
c7f079ca | 2348 | if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL ) |
1da177e4 | 2349 | goto free_pdev; |
1da177e4 LT |
2350 | |
2351 | if( mega_adapinq(adapter, dma_handle) != 0 ) { | |
c7f079ca | 2352 | seq_puts(m, "Adapter inquiry failed.\n"); |
1da177e4 | 2353 | printk(KERN_WARNING "megaraid: inquiry failed.\n"); |
1da177e4 LT |
2354 | goto free_inquiry; |
2355 | } | |
2356 | ||
2357 | ||
2358 | scsi_inq = pci_alloc_consistent(pdev, 256, &scsi_inq_dma_handle); | |
1da177e4 | 2359 | if( scsi_inq == NULL ) { |
c7f079ca | 2360 | seq_puts(m, "memory not available for scsi inq.\n"); |
1da177e4 LT |
2361 | goto free_inquiry; |
2362 | } | |
2363 | ||
2364 | if( adapter->flag & BOARD_40LD ) { | |
2365 | pdrv_state = ((mega_inquiry3 *)inquiry)->pdrv_state; | |
2366 | } | |
2367 | else { | |
2368 | pdrv_state = ((mraid_ext_inquiry *)inquiry)-> | |
2369 | raid_inq.pdrv_info.pdrv_state; | |
2370 | } | |
2371 | ||
2372 | max_channels = adapter->product_info.nchannels; | |
2373 | ||
2374 | if( channel >= max_channels ) { | |
2375 | goto free_pci; | |
2376 | } | |
2377 | ||
2378 | for( tgt = 0; tgt <= MAX_TARGET; tgt++ ) { | |
2379 | ||
2380 | i = channel*16 + tgt; | |
2381 | ||
2382 | state = *(pdrv_state + i); | |
1da177e4 | 2383 | switch( state & 0x0F ) { |
1da177e4 | 2384 | case PDRV_ONLINE: |
c7f079ca DH |
2385 | seq_printf(m, "Channel:%2d Id:%2d State: Online", |
2386 | channel, tgt); | |
1da177e4 LT |
2387 | break; |
2388 | ||
2389 | case PDRV_FAILED: | |
c7f079ca DH |
2390 | seq_printf(m, "Channel:%2d Id:%2d State: Failed", |
2391 | channel, tgt); | |
1da177e4 LT |
2392 | break; |
2393 | ||
2394 | case PDRV_RBLD: | |
c7f079ca DH |
2395 | seq_printf(m, "Channel:%2d Id:%2d State: Rebuild", |
2396 | channel, tgt); | |
1da177e4 LT |
2397 | break; |
2398 | ||
2399 | case PDRV_HOTSPARE: | |
c7f079ca DH |
2400 | seq_printf(m, "Channel:%2d Id:%2d State: Hot spare", |
2401 | channel, tgt); | |
1da177e4 LT |
2402 | break; |
2403 | ||
2404 | default: | |
c7f079ca DH |
2405 | seq_printf(m, "Channel:%2d Id:%2d State: Un-configured", |
2406 | channel, tgt); | |
1da177e4 | 2407 | break; |
1da177e4 LT |
2408 | } |
2409 | ||
2410 | /* | |
2411 | * This interface displays inquiries for disk drives | |
2412 | * only. Inquries for logical drives and non-disk | |
2413 | * devices are available through /proc/scsi/scsi | |
2414 | */ | |
2415 | memset(scsi_inq, 0, 256); | |
2416 | if( mega_internal_dev_inquiry(adapter, channel, tgt, | |
2417 | scsi_inq_dma_handle) || | |
2418 | (scsi_inq[0] & 0x1F) != TYPE_DISK ) { | |
2419 | continue; | |
2420 | } | |
2421 | ||
2422 | /* | |
2423 | * Check for overflow. We print less than 240 | |
2424 | * characters for inquiry | |
2425 | */ | |
c7f079ca DH |
2426 | seq_puts(m, ".\n"); |
2427 | mega_print_inquiry(m, scsi_inq); | |
1da177e4 LT |
2428 | } |
2429 | ||
2430 | free_pci: | |
2431 | pci_free_consistent(pdev, 256, scsi_inq, scsi_inq_dma_handle); | |
2432 | free_inquiry: | |
2433 | mega_free_inquiry(inquiry, dma_handle, pdev); | |
2434 | free_pdev: | |
2435 | free_local_pdev(pdev); | |
c7f079ca | 2436 | return 0; |
1da177e4 LT |
2437 | } |
2438 | ||
1da177e4 | 2439 | /** |
c7f079ca DH |
2440 | * proc_show_pdrv_ch0() |
2441 | * @m - Synthetic file construction data | |
2442 | * @v - File iterator | |
1da177e4 | 2443 | * |
c7f079ca | 2444 | * Display information about the physical drives on physical channel 0. |
1da177e4 LT |
2445 | */ |
2446 | static int | |
c7f079ca | 2447 | proc_show_pdrv_ch0(struct seq_file *m, void *v) |
1da177e4 | 2448 | { |
c7f079ca | 2449 | return proc_show_pdrv(m, m->private, 0); |
1da177e4 LT |
2450 | } |
2451 | ||
2452 | ||
2453 | /** | |
c7f079ca DH |
2454 | * proc_show_pdrv_ch1() |
2455 | * @m - Synthetic file construction data | |
2456 | * @v - File iterator | |
1da177e4 | 2457 | * |
c7f079ca | 2458 | * Display information about the physical drives on physical channel 1. |
1da177e4 LT |
2459 | */ |
2460 | static int | |
c7f079ca | 2461 | proc_show_pdrv_ch1(struct seq_file *m, void *v) |
1da177e4 | 2462 | { |
c7f079ca | 2463 | return proc_show_pdrv(m, m->private, 1); |
1da177e4 LT |
2464 | } |
2465 | ||
2466 | ||
2467 | /** | |
c7f079ca DH |
2468 | * proc_show_pdrv_ch2() |
2469 | * @m - Synthetic file construction data | |
2470 | * @v - File iterator | |
1da177e4 | 2471 | * |
c7f079ca | 2472 | * Display information about the physical drives on physical channel 2. |
1da177e4 LT |
2473 | */ |
2474 | static int | |
c7f079ca | 2475 | proc_show_pdrv_ch2(struct seq_file *m, void *v) |
1da177e4 | 2476 | { |
c7f079ca | 2477 | return proc_show_pdrv(m, m->private, 2); |
1da177e4 LT |
2478 | } |
2479 | ||
2480 | ||
2481 | /** | |
c7f079ca DH |
2482 | * proc_show_pdrv_ch3() |
2483 | * @m - Synthetic file construction data | |
2484 | * @v - File iterator | |
1da177e4 | 2485 | * |
c7f079ca | 2486 | * Display information about the physical drives on physical channel 3. |
1da177e4 LT |
2487 | */ |
2488 | static int | |
c7f079ca | 2489 | proc_show_pdrv_ch3(struct seq_file *m, void *v) |
1da177e4 | 2490 | { |
c7f079ca | 2491 | return proc_show_pdrv(m, m->private, 3); |
1da177e4 LT |
2492 | } |
2493 | ||
2494 | ||
2495 | /** | |
c7f079ca DH |
2496 | * proc_show_rdrv() |
2497 | * @m - Synthetic file construction data | |
1da177e4 LT |
2498 | * @adapter - pointer to our soft state |
2499 | * @start - starting logical drive to display | |
2500 | * @end - ending logical drive to display | |
2501 | * | |
2502 | * We do not print the inquiry information since its already available through | |
2503 | * /proc/scsi/scsi interface | |
2504 | */ | |
2505 | static int | |
c7f079ca | 2506 | proc_show_rdrv(struct seq_file *m, adapter_t *adapter, int start, int end ) |
1da177e4 LT |
2507 | { |
2508 | dma_addr_t dma_handle; | |
2509 | logdrv_param *lparam; | |
2510 | megacmd_t mc; | |
2511 | char *disk_array; | |
2512 | dma_addr_t disk_array_dma_handle; | |
2513 | caddr_t inquiry; | |
2514 | struct pci_dev *pdev; | |
2515 | u8 *rdrv_state; | |
2516 | int num_ldrv; | |
2517 | u32 array_sz; | |
1da177e4 LT |
2518 | int i; |
2519 | ||
c7f079ca DH |
2520 | if( make_local_pdev(adapter, &pdev) != 0 ) |
2521 | return 0; | |
1da177e4 | 2522 | |
c7f079ca DH |
2523 | if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL ) |
2524 | goto free_pdev; | |
1da177e4 LT |
2525 | |
2526 | if( mega_adapinq(adapter, dma_handle) != 0 ) { | |
c7f079ca | 2527 | seq_puts(m, "Adapter inquiry failed.\n"); |
1da177e4 | 2528 | printk(KERN_WARNING "megaraid: inquiry failed.\n"); |
c7f079ca | 2529 | goto free_inquiry; |
1da177e4 LT |
2530 | } |
2531 | ||
2532 | memset(&mc, 0, sizeof(megacmd_t)); | |
2533 | ||
2534 | if( adapter->flag & BOARD_40LD ) { | |
2535 | array_sz = sizeof(disk_array_40ld); | |
2536 | ||
2537 | rdrv_state = ((mega_inquiry3 *)inquiry)->ldrv_state; | |
2538 | ||
2539 | num_ldrv = ((mega_inquiry3 *)inquiry)->num_ldrv; | |
2540 | } | |
2541 | else { | |
2542 | array_sz = sizeof(disk_array_8ld); | |
2543 | ||
2544 | rdrv_state = ((mraid_ext_inquiry *)inquiry)-> | |
2545 | raid_inq.logdrv_info.ldrv_state; | |
2546 | ||
2547 | num_ldrv = ((mraid_ext_inquiry *)inquiry)-> | |
2548 | raid_inq.logdrv_info.num_ldrv; | |
2549 | } | |
2550 | ||
2551 | disk_array = pci_alloc_consistent(pdev, array_sz, | |
2552 | &disk_array_dma_handle); | |
2553 | ||
2554 | if( disk_array == NULL ) { | |
c7f079ca DH |
2555 | seq_puts(m, "memory not available.\n"); |
2556 | goto free_inquiry; | |
1da177e4 LT |
2557 | } |
2558 | ||
2559 | mc.xferaddr = (u32)disk_array_dma_handle; | |
2560 | ||
2561 | if( adapter->flag & BOARD_40LD ) { | |
2562 | mc.cmd = FC_NEW_CONFIG; | |
2563 | mc.opcode = OP_DCMD_READ_CONFIG; | |
2564 | ||
cb0258a2 | 2565 | if( mega_internal_command(adapter, &mc, NULL) ) { |
c7f079ca DH |
2566 | seq_puts(m, "40LD read config failed.\n"); |
2567 | goto free_pci; | |
1da177e4 LT |
2568 | } |
2569 | ||
2570 | } | |
2571 | else { | |
2572 | mc.cmd = NEW_READ_CONFIG_8LD; | |
2573 | ||
cb0258a2 | 2574 | if( mega_internal_command(adapter, &mc, NULL) ) { |
1da177e4 | 2575 | mc.cmd = READ_CONFIG_8LD; |
c7f079ca DH |
2576 | if( mega_internal_command(adapter, &mc, NULL) ) { |
2577 | seq_puts(m, "8LD read config failed.\n"); | |
2578 | goto free_pci; | |
1da177e4 LT |
2579 | } |
2580 | } | |
2581 | } | |
2582 | ||
2583 | for( i = start; i < ( (end+1 < num_ldrv) ? end+1 : num_ldrv ); i++ ) { | |
2584 | ||
2585 | if( adapter->flag & BOARD_40LD ) { | |
2586 | lparam = | |
2587 | &((disk_array_40ld *)disk_array)->ldrv[i].lparam; | |
2588 | } | |
2589 | else { | |
2590 | lparam = | |
2591 | &((disk_array_8ld *)disk_array)->ldrv[i].lparam; | |
2592 | } | |
2593 | ||
2594 | /* | |
2595 | * Check for overflow. We print less than 240 characters for | |
2596 | * information about each logical drive. | |
2597 | */ | |
c7f079ca | 2598 | seq_printf(m, "Logical drive:%2d:, ", i); |
1da177e4 LT |
2599 | |
2600 | switch( rdrv_state[i] & 0x0F ) { | |
2601 | case RDRV_OFFLINE: | |
c7f079ca | 2602 | seq_puts(m, "state: offline"); |
1da177e4 | 2603 | break; |
1da177e4 | 2604 | case RDRV_DEGRADED: |
c7f079ca | 2605 | seq_puts(m, "state: degraded"); |
1da177e4 | 2606 | break; |
1da177e4 | 2607 | case RDRV_OPTIMAL: |
c7f079ca | 2608 | seq_puts(m, "state: optimal"); |
1da177e4 | 2609 | break; |
1da177e4 | 2610 | case RDRV_DELETED: |
c7f079ca | 2611 | seq_puts(m, "state: deleted"); |
1da177e4 | 2612 | break; |
1da177e4 | 2613 | default: |
c7f079ca | 2614 | seq_puts(m, "state: unknown"); |
1da177e4 LT |
2615 | break; |
2616 | } | |
2617 | ||
2618 | /* | |
2619 | * Check if check consistency or initialization is going on | |
2620 | * for this logical drive. | |
2621 | */ | |
c7f079ca DH |
2622 | if( (rdrv_state[i] & 0xF0) == 0x20 ) |
2623 | seq_puts(m, ", check-consistency in progress"); | |
2624 | else if( (rdrv_state[i] & 0xF0) == 0x10 ) | |
2625 | seq_puts(m, ", initialization in progress"); | |
1da177e4 | 2626 | |
c7f079ca | 2627 | seq_putc(m, '\n'); |
1da177e4 | 2628 | |
c7f079ca DH |
2629 | seq_printf(m, "Span depth:%3d, ", lparam->span_depth); |
2630 | seq_printf(m, "RAID level:%3d, ", lparam->level); | |
2631 | seq_printf(m, "Stripe size:%3d, ", | |
2632 | lparam->stripe_sz ? lparam->stripe_sz/2: 128); | |
2633 | seq_printf(m, "Row size:%3d\n", lparam->row_size); | |
1da177e4 | 2634 | |
c7f079ca | 2635 | seq_puts(m, "Read Policy: "); |
1da177e4 | 2636 | switch(lparam->read_ahead) { |
1da177e4 | 2637 | case NO_READ_AHEAD: |
c7f079ca | 2638 | seq_puts(m, "No read ahead, "); |
1da177e4 | 2639 | break; |
1da177e4 | 2640 | case READ_AHEAD: |
c7f079ca | 2641 | seq_puts(m, "Read ahead, "); |
1da177e4 | 2642 | break; |
1da177e4 | 2643 | case ADAP_READ_AHEAD: |
c7f079ca | 2644 | seq_puts(m, "Adaptive, "); |
1da177e4 LT |
2645 | break; |
2646 | ||
2647 | } | |
2648 | ||
c7f079ca | 2649 | seq_puts(m, "Write Policy: "); |
1da177e4 | 2650 | switch(lparam->write_mode) { |
1da177e4 | 2651 | case WRMODE_WRITE_THRU: |
c7f079ca | 2652 | seq_puts(m, "Write thru, "); |
1da177e4 | 2653 | break; |
1da177e4 | 2654 | case WRMODE_WRITE_BACK: |
c7f079ca | 2655 | seq_puts(m, "Write back, "); |
1da177e4 LT |
2656 | break; |
2657 | } | |
2658 | ||
c7f079ca | 2659 | seq_puts(m, "Cache Policy: "); |
1da177e4 | 2660 | switch(lparam->direct_io) { |
1da177e4 | 2661 | case CACHED_IO: |
c7f079ca | 2662 | seq_puts(m, "Cached IO\n\n"); |
1da177e4 | 2663 | break; |
1da177e4 | 2664 | case DIRECT_IO: |
c7f079ca | 2665 | seq_puts(m, "Direct IO\n\n"); |
1da177e4 LT |
2666 | break; |
2667 | } | |
2668 | } | |
2669 | ||
c7f079ca | 2670 | free_pci: |
1da177e4 LT |
2671 | pci_free_consistent(pdev, array_sz, disk_array, |
2672 | disk_array_dma_handle); | |
c7f079ca DH |
2673 | free_inquiry: |
2674 | mega_free_inquiry(inquiry, dma_handle, pdev); | |
2675 | free_pdev: | |
1da177e4 | 2676 | free_local_pdev(pdev); |
c7f079ca DH |
2677 | return 0; |
2678 | } | |
1da177e4 | 2679 | |
c7f079ca DH |
2680 | /** |
2681 | * proc_show_rdrv_10() | |
2682 | * @m - Synthetic file construction data | |
2683 | * @v - File iterator | |
2684 | * | |
2685 | * Display real time information about the logical drives 0 through 9. | |
2686 | */ | |
2687 | static int | |
2688 | proc_show_rdrv_10(struct seq_file *m, void *v) | |
2689 | { | |
2690 | return proc_show_rdrv(m, m->private, 0, 9); | |
1da177e4 | 2691 | } |
c7f079ca DH |
2692 | |
2693 | ||
2694 | /** | |
2695 | * proc_show_rdrv_20() | |
2696 | * @m - Synthetic file construction data | |
2697 | * @v - File iterator | |
2698 | * | |
2699 | * Display real time information about the logical drives 0 through 9. | |
2700 | */ | |
2701 | static int | |
2702 | proc_show_rdrv_20(struct seq_file *m, void *v) | |
2703 | { | |
2704 | return proc_show_rdrv(m, m->private, 10, 19); | |
2705 | } | |
2706 | ||
2707 | ||
2708 | /** | |
2709 | * proc_show_rdrv_30() | |
2710 | * @m - Synthetic file construction data | |
2711 | * @v - File iterator | |
2712 | * | |
2713 | * Display real time information about the logical drives 0 through 9. | |
2714 | */ | |
2715 | static int | |
2716 | proc_show_rdrv_30(struct seq_file *m, void *v) | |
2717 | { | |
2718 | return proc_show_rdrv(m, m->private, 20, 29); | |
2719 | } | |
2720 | ||
2721 | ||
2722 | /** | |
2723 | * proc_show_rdrv_40() | |
2724 | * @m - Synthetic file construction data | |
2725 | * @v - File iterator | |
2726 | * | |
2727 | * Display real time information about the logical drives 0 through 9. | |
2728 | */ | |
2729 | static int | |
2730 | proc_show_rdrv_40(struct seq_file *m, void *v) | |
2731 | { | |
2732 | return proc_show_rdrv(m, m->private, 30, 39); | |
2733 | } | |
2734 | ||
2735 | ||
2736 | /* | |
2737 | * seq_file wrappers for procfile show routines. | |
2738 | */ | |
2739 | static int mega_proc_open(struct inode *inode, struct file *file) | |
2740 | { | |
4a520d27 | 2741 | adapter_t *adapter = proc_get_parent_data(inode); |
c7f079ca DH |
2742 | int (*show)(struct seq_file *, void *) = PDE_DATA(inode); |
2743 | ||
2744 | return single_open(file, show, adapter); | |
2745 | } | |
2746 | ||
2747 | static const struct file_operations mega_proc_fops = { | |
2748 | .open = mega_proc_open, | |
2749 | .read = seq_read, | |
2750 | .llseek = seq_lseek, | |
9bec8a74 | 2751 | .release = single_release, |
c7f079ca DH |
2752 | }; |
2753 | ||
2754 | /* | |
2755 | * Table of proc files we need to create. | |
2756 | */ | |
2757 | struct mega_proc_file { | |
2758 | const char *name; | |
2759 | unsigned short ptr_offset; | |
2760 | int (*show) (struct seq_file *m, void *v); | |
2761 | }; | |
2762 | ||
2763 | static const struct mega_proc_file mega_proc_files[] = { | |
2764 | { "config", offsetof(adapter_t, proc_read), proc_show_config }, | |
2765 | { "stat", offsetof(adapter_t, proc_stat), proc_show_stat }, | |
2766 | { "mailbox", offsetof(adapter_t, proc_mbox), proc_show_mbox }, | |
2767 | #if MEGA_HAVE_ENH_PROC | |
2768 | { "rebuild-rate", offsetof(adapter_t, proc_rr), proc_show_rebuild_rate }, | |
2769 | { "battery-status", offsetof(adapter_t, proc_battery), proc_show_battery }, | |
2770 | { "diskdrives-ch0", offsetof(adapter_t, proc_pdrvstat[0]), proc_show_pdrv_ch0 }, | |
2771 | { "diskdrives-ch1", offsetof(adapter_t, proc_pdrvstat[1]), proc_show_pdrv_ch1 }, | |
2772 | { "diskdrives-ch2", offsetof(adapter_t, proc_pdrvstat[2]), proc_show_pdrv_ch2 }, | |
2773 | { "diskdrives-ch3", offsetof(adapter_t, proc_pdrvstat[3]), proc_show_pdrv_ch3 }, | |
2774 | { "raiddrives-0-9", offsetof(adapter_t, proc_rdrvstat[0]), proc_show_rdrv_10 }, | |
2775 | { "raiddrives-10-19", offsetof(adapter_t, proc_rdrvstat[1]), proc_show_rdrv_20 }, | |
2776 | { "raiddrives-20-29", offsetof(adapter_t, proc_rdrvstat[2]), proc_show_rdrv_30 }, | |
2777 | { "raiddrives-30-39", offsetof(adapter_t, proc_rdrvstat[3]), proc_show_rdrv_40 }, | |
2778 | #endif | |
2779 | { NULL } | |
2780 | }; | |
2781 | ||
2782 | /** | |
2783 | * mega_create_proc_entry() | |
2784 | * @index - index in soft state array | |
2785 | * @parent - parent node for this /proc entry | |
2786 | * | |
2787 | * Creates /proc entries for our controllers. | |
2788 | */ | |
2789 | static void | |
2790 | mega_create_proc_entry(int index, struct proc_dir_entry *parent) | |
2791 | { | |
2792 | const struct mega_proc_file *f; | |
2793 | adapter_t *adapter = hba_soft_state[index]; | |
2794 | struct proc_dir_entry *dir, *de, **ppde; | |
2795 | u8 string[16]; | |
2796 | ||
2797 | sprintf(string, "hba%d", adapter->host->host_no); | |
2798 | ||
270b5ac2 DH |
2799 | dir = adapter->controller_proc_dir_entry = |
2800 | proc_mkdir_data(string, 0, parent, adapter); | |
c7f079ca DH |
2801 | if(!dir) { |
2802 | printk(KERN_WARNING "\nmegaraid: proc_mkdir failed\n"); | |
2803 | return; | |
2804 | } | |
c7f079ca DH |
2805 | |
2806 | for (f = mega_proc_files; f->name; f++) { | |
2807 | de = proc_create_data(f->name, S_IRUSR, dir, &mega_proc_fops, | |
2808 | f->show); | |
2809 | if (!de) { | |
2810 | printk(KERN_WARNING "\nmegaraid: proc_create failed\n"); | |
2811 | return; | |
2812 | } | |
2813 | ||
2814 | ppde = (void *)adapter + f->ptr_offset; | |
2815 | *ppde = de; | |
2816 | } | |
2817 | } | |
2818 | ||
84a3c97b | 2819 | #else |
2820 | static inline void mega_create_proc_entry(int index, struct proc_dir_entry *parent) | |
2821 | { | |
2822 | } | |
1da177e4 LT |
2823 | #endif |
2824 | ||
2825 | ||
2826 | /** | |
2827 | * megaraid_biosparam() | |
2828 | * | |
2829 | * Return the disk geometry for a particular disk | |
2830 | */ | |
2831 | static int | |
2832 | megaraid_biosparam(struct scsi_device *sdev, struct block_device *bdev, | |
2833 | sector_t capacity, int geom[]) | |
2834 | { | |
2835 | adapter_t *adapter; | |
2836 | unsigned char *bh; | |
2837 | int heads; | |
2838 | int sectors; | |
2839 | int cylinders; | |
2840 | int rval; | |
2841 | ||
2842 | /* Get pointer to host config structure */ | |
2843 | adapter = (adapter_t *)sdev->host->hostdata; | |
2844 | ||
2845 | if (IS_RAID_CH(adapter, sdev->channel)) { | |
2846 | /* Default heads (64) & sectors (32) */ | |
2847 | heads = 64; | |
2848 | sectors = 32; | |
2849 | cylinders = (ulong)capacity / (heads * sectors); | |
2850 | ||
2851 | /* | |
2852 | * Handle extended translation size for logical drives | |
2853 | * > 1Gb | |
2854 | */ | |
2855 | if ((ulong)capacity >= 0x200000) { | |
2856 | heads = 255; | |
2857 | sectors = 63; | |
2858 | cylinders = (ulong)capacity / (heads * sectors); | |
2859 | } | |
2860 | ||
2861 | /* return result */ | |
2862 | geom[0] = heads; | |
2863 | geom[1] = sectors; | |
2864 | geom[2] = cylinders; | |
2865 | } | |
2866 | else { | |
2867 | bh = scsi_bios_ptable(bdev); | |
2868 | ||
2869 | if( bh ) { | |
2870 | rval = scsi_partsize(bh, capacity, | |
2871 | &geom[2], &geom[0], &geom[1]); | |
2872 | kfree(bh); | |
2873 | if( rval != -1 ) | |
2874 | return rval; | |
2875 | } | |
2876 | ||
2877 | printk(KERN_INFO | |
2878 | "megaraid: invalid partition on this disk on channel %d\n", | |
2879 | sdev->channel); | |
2880 | ||
2881 | /* Default heads (64) & sectors (32) */ | |
2882 | heads = 64; | |
2883 | sectors = 32; | |
2884 | cylinders = (ulong)capacity / (heads * sectors); | |
2885 | ||
2886 | /* Handle extended translation size for logical drives > 1Gb */ | |
2887 | if ((ulong)capacity >= 0x200000) { | |
2888 | heads = 255; | |
2889 | sectors = 63; | |
2890 | cylinders = (ulong)capacity / (heads * sectors); | |
2891 | } | |
2892 | ||
2893 | /* return result */ | |
2894 | geom[0] = heads; | |
2895 | geom[1] = sectors; | |
2896 | geom[2] = cylinders; | |
2897 | } | |
2898 | ||
2899 | return 0; | |
2900 | } | |
2901 | ||
2902 | /** | |
2903 | * mega_init_scb() | |
2904 | * @adapter - pointer to our soft state | |
2905 | * | |
2906 | * Allocate memory for the various pointers in the scb structures: | |
2907 | * scatter-gather list pointer, passthru and extended passthru structure | |
2908 | * pointers. | |
2909 | */ | |
2910 | static int | |
2911 | mega_init_scb(adapter_t *adapter) | |
2912 | { | |
2913 | scb_t *scb; | |
2914 | int i; | |
2915 | ||
2916 | for( i = 0; i < adapter->max_cmds; i++ ) { | |
2917 | ||
2918 | scb = &adapter->scb_list[i]; | |
2919 | ||
2920 | scb->sgl64 = NULL; | |
2921 | scb->sgl = NULL; | |
2922 | scb->pthru = NULL; | |
2923 | scb->epthru = NULL; | |
2924 | } | |
2925 | ||
2926 | for( i = 0; i < adapter->max_cmds; i++ ) { | |
2927 | ||
2928 | scb = &adapter->scb_list[i]; | |
2929 | ||
2930 | scb->idx = i; | |
2931 | ||
2932 | scb->sgl64 = pci_alloc_consistent(adapter->dev, | |
2933 | sizeof(mega_sgl64) * adapter->sglen, | |
2934 | &scb->sgl_dma_addr); | |
2935 | ||
2936 | scb->sgl = (mega_sglist *)scb->sgl64; | |
2937 | ||
2938 | if( !scb->sgl ) { | |
2939 | printk(KERN_WARNING "RAID: Can't allocate sglist.\n"); | |
2940 | mega_free_sgl(adapter); | |
2941 | return -1; | |
2942 | } | |
2943 | ||
2944 | scb->pthru = pci_alloc_consistent(adapter->dev, | |
2945 | sizeof(mega_passthru), | |
2946 | &scb->pthru_dma_addr); | |
2947 | ||
2948 | if( !scb->pthru ) { | |
2949 | printk(KERN_WARNING "RAID: Can't allocate passthru.\n"); | |
2950 | mega_free_sgl(adapter); | |
2951 | return -1; | |
2952 | } | |
2953 | ||
2954 | scb->epthru = pci_alloc_consistent(adapter->dev, | |
2955 | sizeof(mega_ext_passthru), | |
2956 | &scb->epthru_dma_addr); | |
2957 | ||
2958 | if( !scb->epthru ) { | |
2959 | printk(KERN_WARNING | |
2960 | "Can't allocate extended passthru.\n"); | |
2961 | mega_free_sgl(adapter); | |
2962 | return -1; | |
2963 | } | |
2964 | ||
2965 | ||
2966 | scb->dma_type = MEGA_DMA_TYPE_NONE; | |
2967 | ||
2968 | /* | |
2969 | * Link to free list | |
2970 | * lock not required since we are loading the driver, so no | |
2971 | * commands possible right now. | |
2972 | */ | |
2973 | scb->state = SCB_FREE; | |
2974 | scb->cmd = NULL; | |
2975 | list_add(&scb->list, &adapter->free_list); | |
2976 | } | |
2977 | ||
2978 | return 0; | |
2979 | } | |
2980 | ||
2981 | ||
2982 | /** | |
2983 | * megadev_open() | |
2984 | * @inode - unused | |
2985 | * @filep - unused | |
2986 | * | |
2987 | * Routines for the character/ioctl interface to the driver. Find out if this | |
d21c95c5 | 2988 | * is a valid open. |
1da177e4 LT |
2989 | */ |
2990 | static int | |
2991 | megadev_open (struct inode *inode, struct file *filep) | |
2992 | { | |
2993 | /* | |
2994 | * Only allow superuser to access private ioctl interface | |
2995 | */ | |
2996 | if( !capable(CAP_SYS_ADMIN) ) return -EACCES; | |
2997 | ||
2998 | return 0; | |
2999 | } | |
3000 | ||
3001 | ||
3002 | /** | |
3003 | * megadev_ioctl() | |
3004 | * @inode - Our device inode | |
3005 | * @filep - unused | |
3006 | * @cmd - ioctl command | |
3007 | * @arg - user buffer | |
3008 | * | |
3009 | * ioctl entry point for our private ioctl interface. We move the data in from | |
3010 | * the user space, prepare the command (if necessary, convert the old MIMD | |
3011 | * ioctl to new ioctl command), and issue a synchronous command to the | |
3012 | * controller. | |
3013 | */ | |
3014 | static int | |
f4927c45 | 3015 | megadev_ioctl(struct file *filep, unsigned int cmd, unsigned long arg) |
1da177e4 LT |
3016 | { |
3017 | adapter_t *adapter; | |
3018 | nitioctl_t uioc; | |
3019 | int adapno; | |
3020 | int rval; | |
3021 | mega_passthru __user *upthru; /* user address for passthru */ | |
3022 | mega_passthru *pthru; /* copy user passthru here */ | |
3023 | dma_addr_t pthru_dma_hndl; | |
3024 | void *data = NULL; /* data to be transferred */ | |
3025 | dma_addr_t data_dma_hndl; /* dma handle for data xfer area */ | |
3026 | megacmd_t mc; | |
3027 | megastat_t __user *ustats; | |
3028 | int num_ldrv; | |
3029 | u32 uxferaddr = 0; | |
3030 | struct pci_dev *pdev; | |
3031 | ||
3032 | ustats = NULL; /* avoid compilation warnings */ | |
3033 | num_ldrv = 0; | |
3034 | ||
3035 | /* | |
3036 | * Make sure only USCSICMD are issued through this interface. | |
3037 | * MIMD application would still fire different command. | |
3038 | */ | |
3039 | if( (_IOC_TYPE(cmd) != MEGAIOC_MAGIC) && (cmd != USCSICMD) ) { | |
3040 | return -EINVAL; | |
3041 | } | |
3042 | ||
3043 | /* | |
3044 | * Check and convert a possible MIMD command to NIT command. | |
3045 | * mega_m_to_n() copies the data from the user space, so we do not | |
3046 | * have to do it here. | |
3047 | * NOTE: We will need some user address to copyout the data, therefore | |
3048 | * the inteface layer will also provide us with the required user | |
3049 | * addresses. | |
3050 | */ | |
3051 | memset(&uioc, 0, sizeof(nitioctl_t)); | |
3052 | if( (rval = mega_m_to_n( (void __user *)arg, &uioc)) != 0 ) | |
3053 | return rval; | |
3054 | ||
3055 | ||
3056 | switch( uioc.opcode ) { | |
3057 | ||
3058 | case GET_DRIVER_VER: | |
3059 | if( put_user(driver_ver, (u32 __user *)uioc.uioc_uaddr) ) | |
3060 | return (-EFAULT); | |
3061 | ||
3062 | break; | |
3063 | ||
3064 | case GET_N_ADAP: | |
3065 | if( put_user(hba_count, (u32 __user *)uioc.uioc_uaddr) ) | |
3066 | return (-EFAULT); | |
3067 | ||
3068 | /* | |
3069 | * Shucks. MIMD interface returns a positive value for number | |
3070 | * of adapters. TODO: Change it to return 0 when there is no | |
3071 | * applicatio using mimd interface. | |
3072 | */ | |
3073 | return hba_count; | |
3074 | ||
3075 | case GET_ADAP_INFO: | |
3076 | ||
3077 | /* | |
3078 | * Which adapter | |
3079 | */ | |
3080 | if( (adapno = GETADAP(uioc.adapno)) >= hba_count ) | |
3081 | return (-ENODEV); | |
3082 | ||
3083 | if( copy_to_user(uioc.uioc_uaddr, mcontroller+adapno, | |
3084 | sizeof(struct mcontroller)) ) | |
3085 | return (-EFAULT); | |
3086 | break; | |
3087 | ||
3088 | #if MEGA_HAVE_STATS | |
3089 | ||
3090 | case GET_STATS: | |
3091 | /* | |
3092 | * Which adapter | |
3093 | */ | |
3094 | if( (adapno = GETADAP(uioc.adapno)) >= hba_count ) | |
3095 | return (-ENODEV); | |
3096 | ||
3097 | adapter = hba_soft_state[adapno]; | |
3098 | ||
3099 | ustats = uioc.uioc_uaddr; | |
3100 | ||
3101 | if( copy_from_user(&num_ldrv, &ustats->num_ldrv, sizeof(int)) ) | |
3102 | return (-EFAULT); | |
3103 | ||
3104 | /* | |
3105 | * Check for the validity of the logical drive number | |
3106 | */ | |
3107 | if( num_ldrv >= MAX_LOGICAL_DRIVES_40LD ) return -EINVAL; | |
3108 | ||
3109 | if( copy_to_user(ustats->nreads, adapter->nreads, | |
3110 | num_ldrv*sizeof(u32)) ) | |
3111 | return -EFAULT; | |
3112 | ||
3113 | if( copy_to_user(ustats->nreadblocks, adapter->nreadblocks, | |
3114 | num_ldrv*sizeof(u32)) ) | |
3115 | return -EFAULT; | |
3116 | ||
3117 | if( copy_to_user(ustats->nwrites, adapter->nwrites, | |
3118 | num_ldrv*sizeof(u32)) ) | |
3119 | return -EFAULT; | |
3120 | ||
3121 | if( copy_to_user(ustats->nwriteblocks, adapter->nwriteblocks, | |
3122 | num_ldrv*sizeof(u32)) ) | |
3123 | return -EFAULT; | |
3124 | ||
3125 | if( copy_to_user(ustats->rd_errors, adapter->rd_errors, | |
3126 | num_ldrv*sizeof(u32)) ) | |
3127 | return -EFAULT; | |
3128 | ||
3129 | if( copy_to_user(ustats->wr_errors, adapter->wr_errors, | |
3130 | num_ldrv*sizeof(u32)) ) | |
3131 | return -EFAULT; | |
3132 | ||
3133 | return 0; | |
3134 | ||
3135 | #endif | |
3136 | case MBOX_CMD: | |
3137 | ||
3138 | /* | |
3139 | * Which adapter | |
3140 | */ | |
3141 | if( (adapno = GETADAP(uioc.adapno)) >= hba_count ) | |
3142 | return (-ENODEV); | |
3143 | ||
3144 | adapter = hba_soft_state[adapno]; | |
3145 | ||
3146 | /* | |
3147 | * Deletion of logical drive is a special case. The adapter | |
3148 | * should be quiescent before this command is issued. | |
3149 | */ | |
3150 | if( uioc.uioc_rmbox[0] == FC_DEL_LOGDRV && | |
3151 | uioc.uioc_rmbox[2] == OP_DEL_LOGDRV ) { | |
3152 | ||
3153 | /* | |
3154 | * Do we support this feature | |
3155 | */ | |
3156 | if( !adapter->support_random_del ) { | |
3157 | printk(KERN_WARNING "megaraid: logdrv "); | |
3158 | printk("delete on non-supporting F/W.\n"); | |
3159 | ||
3160 | return (-EINVAL); | |
3161 | } | |
3162 | ||
3163 | rval = mega_del_logdrv( adapter, uioc.uioc_rmbox[3] ); | |
3164 | ||
3165 | if( rval == 0 ) { | |
3166 | memset(&mc, 0, sizeof(megacmd_t)); | |
3167 | ||
3168 | mc.status = rval; | |
3169 | ||
3170 | rval = mega_n_to_m((void __user *)arg, &mc); | |
3171 | } | |
3172 | ||
3173 | return rval; | |
3174 | } | |
3175 | /* | |
3176 | * This interface only support the regular passthru commands. | |
3177 | * Reject extended passthru and 64-bit passthru | |
3178 | */ | |
3179 | if( uioc.uioc_rmbox[0] == MEGA_MBOXCMD_PASSTHRU64 || | |
3180 | uioc.uioc_rmbox[0] == MEGA_MBOXCMD_EXTPTHRU ) { | |
3181 | ||
3182 | printk(KERN_WARNING "megaraid: rejected passthru.\n"); | |
3183 | ||
3184 | return (-EINVAL); | |
3185 | } | |
3186 | ||
3187 | /* | |
3188 | * For all internal commands, the buffer must be allocated in | |
3189 | * <4GB address range | |
3190 | */ | |
3191 | if( make_local_pdev(adapter, &pdev) != 0 ) | |
3192 | return -EIO; | |
3193 | ||
3194 | /* Is it a passthru command or a DCMD */ | |
3195 | if( uioc.uioc_rmbox[0] == MEGA_MBOXCMD_PASSTHRU ) { | |
3196 | /* Passthru commands */ | |
3197 | ||
3198 | pthru = pci_alloc_consistent(pdev, | |
3199 | sizeof(mega_passthru), | |
3200 | &pthru_dma_hndl); | |
3201 | ||
3202 | if( pthru == NULL ) { | |
3203 | free_local_pdev(pdev); | |
3204 | return (-ENOMEM); | |
3205 | } | |
3206 | ||
3207 | /* | |
3208 | * The user passthru structure | |
3209 | */ | |
de5952e9 | 3210 | upthru = (mega_passthru __user *)(unsigned long)MBOX(uioc)->xferaddr; |
1da177e4 LT |
3211 | |
3212 | /* | |
3213 | * Copy in the user passthru here. | |
3214 | */ | |
3215 | if( copy_from_user(pthru, upthru, | |
3216 | sizeof(mega_passthru)) ) { | |
3217 | ||
3218 | pci_free_consistent(pdev, | |
3219 | sizeof(mega_passthru), pthru, | |
3220 | pthru_dma_hndl); | |
3221 | ||
3222 | free_local_pdev(pdev); | |
3223 | ||
3224 | return (-EFAULT); | |
3225 | } | |
3226 | ||
3227 | /* | |
3228 | * Is there a data transfer | |
3229 | */ | |
3230 | if( pthru->dataxferlen ) { | |
3231 | data = pci_alloc_consistent(pdev, | |
3232 | pthru->dataxferlen, | |
3233 | &data_dma_hndl); | |
3234 | ||
3235 | if( data == NULL ) { | |
3236 | pci_free_consistent(pdev, | |
3237 | sizeof(mega_passthru), | |
3238 | pthru, | |
3239 | pthru_dma_hndl); | |
3240 | ||
3241 | free_local_pdev(pdev); | |
3242 | ||
3243 | return (-ENOMEM); | |
3244 | } | |
3245 | ||
3246 | /* | |
3247 | * Save the user address and point the kernel | |
3248 | * address at just allocated memory | |
3249 | */ | |
3250 | uxferaddr = pthru->dataxferaddr; | |
3251 | pthru->dataxferaddr = data_dma_hndl; | |
3252 | } | |
3253 | ||
3254 | ||
3255 | /* | |
3256 | * Is data coming down-stream | |
3257 | */ | |
3258 | if( pthru->dataxferlen && (uioc.flags & UIOC_WR) ) { | |
3259 | /* | |
3260 | * Get the user data | |
3261 | */ | |
de5952e9 | 3262 | if( copy_from_user(data, (char __user *)(unsigned long) uxferaddr, |
1da177e4 LT |
3263 | pthru->dataxferlen) ) { |
3264 | rval = (-EFAULT); | |
3265 | goto freemem_and_return; | |
3266 | } | |
3267 | } | |
3268 | ||
3269 | memset(&mc, 0, sizeof(megacmd_t)); | |
3270 | ||
3271 | mc.cmd = MEGA_MBOXCMD_PASSTHRU; | |
3272 | mc.xferaddr = (u32)pthru_dma_hndl; | |
3273 | ||
3274 | /* | |
3275 | * Issue the command | |
3276 | */ | |
cb0258a2 | 3277 | mega_internal_command(adapter, &mc, pthru); |
1da177e4 LT |
3278 | |
3279 | rval = mega_n_to_m((void __user *)arg, &mc); | |
3280 | ||
3281 | if( rval ) goto freemem_and_return; | |
3282 | ||
3283 | ||
3284 | /* | |
3285 | * Is data going up-stream | |
3286 | */ | |
3287 | if( pthru->dataxferlen && (uioc.flags & UIOC_RD) ) { | |
de5952e9 | 3288 | if( copy_to_user((char __user *)(unsigned long) uxferaddr, data, |
1da177e4 LT |
3289 | pthru->dataxferlen) ) { |
3290 | rval = (-EFAULT); | |
3291 | } | |
3292 | } | |
3293 | ||
3294 | /* | |
3295 | * Send the request sense data also, irrespective of | |
3296 | * whether the user has asked for it or not. | |
3297 | */ | |
2d2f8d59 JJ |
3298 | if (copy_to_user(upthru->reqsensearea, |
3299 | pthru->reqsensearea, 14)) | |
3300 | rval = -EFAULT; | |
1da177e4 LT |
3301 | |
3302 | freemem_and_return: | |
3303 | if( pthru->dataxferlen ) { | |
3304 | pci_free_consistent(pdev, | |
3305 | pthru->dataxferlen, data, | |
3306 | data_dma_hndl); | |
3307 | } | |
3308 | ||
3309 | pci_free_consistent(pdev, sizeof(mega_passthru), | |
3310 | pthru, pthru_dma_hndl); | |
3311 | ||
3312 | free_local_pdev(pdev); | |
3313 | ||
3314 | return rval; | |
3315 | } | |
3316 | else { | |
3317 | /* DCMD commands */ | |
3318 | ||
3319 | /* | |
3320 | * Is there a data transfer | |
3321 | */ | |
3322 | if( uioc.xferlen ) { | |
3323 | data = pci_alloc_consistent(pdev, | |
3324 | uioc.xferlen, &data_dma_hndl); | |
3325 | ||
3326 | if( data == NULL ) { | |
3327 | free_local_pdev(pdev); | |
3328 | return (-ENOMEM); | |
3329 | } | |
3330 | ||
3331 | uxferaddr = MBOX(uioc)->xferaddr; | |
3332 | } | |
3333 | ||
3334 | /* | |
3335 | * Is data coming down-stream | |
3336 | */ | |
3337 | if( uioc.xferlen && (uioc.flags & UIOC_WR) ) { | |
3338 | /* | |
3339 | * Get the user data | |
3340 | */ | |
de5952e9 | 3341 | if( copy_from_user(data, (char __user *)(unsigned long) uxferaddr, |
1da177e4 LT |
3342 | uioc.xferlen) ) { |
3343 | ||
3344 | pci_free_consistent(pdev, | |
3345 | uioc.xferlen, | |
3346 | data, data_dma_hndl); | |
3347 | ||
3348 | free_local_pdev(pdev); | |
3349 | ||
3350 | return (-EFAULT); | |
3351 | } | |
3352 | } | |
3353 | ||
3354 | memcpy(&mc, MBOX(uioc), sizeof(megacmd_t)); | |
3355 | ||
3356 | mc.xferaddr = (u32)data_dma_hndl; | |
3357 | ||
3358 | /* | |
3359 | * Issue the command | |
3360 | */ | |
cb0258a2 | 3361 | mega_internal_command(adapter, &mc, NULL); |
1da177e4 LT |
3362 | |
3363 | rval = mega_n_to_m((void __user *)arg, &mc); | |
3364 | ||
3365 | if( rval ) { | |
3366 | if( uioc.xferlen ) { | |
3367 | pci_free_consistent(pdev, | |
3368 | uioc.xferlen, data, | |
3369 | data_dma_hndl); | |
3370 | } | |
3371 | ||
3372 | free_local_pdev(pdev); | |
3373 | ||
3374 | return rval; | |
3375 | } | |
3376 | ||
3377 | /* | |
3378 | * Is data going up-stream | |
3379 | */ | |
3380 | if( uioc.xferlen && (uioc.flags & UIOC_RD) ) { | |
de5952e9 | 3381 | if( copy_to_user((char __user *)(unsigned long) uxferaddr, data, |
1da177e4 LT |
3382 | uioc.xferlen) ) { |
3383 | ||
3384 | rval = (-EFAULT); | |
3385 | } | |
3386 | } | |
3387 | ||
3388 | if( uioc.xferlen ) { | |
3389 | pci_free_consistent(pdev, | |
3390 | uioc.xferlen, data, | |
3391 | data_dma_hndl); | |
3392 | } | |
3393 | ||
3394 | free_local_pdev(pdev); | |
3395 | ||
3396 | return rval; | |
3397 | } | |
3398 | ||
3399 | default: | |
3400 | return (-EINVAL); | |
3401 | } | |
3402 | ||
3403 | return 0; | |
3404 | } | |
3405 | ||
f4927c45 AB |
3406 | static long |
3407 | megadev_unlocked_ioctl(struct file *filep, unsigned int cmd, unsigned long arg) | |
3408 | { | |
3409 | int ret; | |
3410 | ||
c45d15d2 | 3411 | mutex_lock(&megadev_mutex); |
f4927c45 | 3412 | ret = megadev_ioctl(filep, cmd, arg); |
c45d15d2 | 3413 | mutex_unlock(&megadev_mutex); |
f4927c45 AB |
3414 | |
3415 | return ret; | |
3416 | } | |
3417 | ||
1da177e4 LT |
3418 | /** |
3419 | * mega_m_to_n() | |
3420 | * @arg - user address | |
3421 | * @uioc - new ioctl structure | |
3422 | * | |
3423 | * A thin layer to convert older mimd interface ioctl structure to NIT ioctl | |
3424 | * structure | |
3425 | * | |
3426 | * Converts the older mimd ioctl structure to newer NIT structure | |
3427 | */ | |
3428 | static int | |
3429 | mega_m_to_n(void __user *arg, nitioctl_t *uioc) | |
3430 | { | |
3431 | struct uioctl_t uioc_mimd; | |
3432 | char signature[8] = {0}; | |
3433 | u8 opcode; | |
3434 | u8 subopcode; | |
3435 | ||
3436 | ||
3437 | /* | |
3438 | * check is the application conforms to NIT. We do not have to do much | |
3439 | * in that case. | |
3440 | * We exploit the fact that the signature is stored in the very | |
25985edc | 3441 | * beginning of the structure. |
1da177e4 LT |
3442 | */ |
3443 | ||
3444 | if( copy_from_user(signature, arg, 7) ) | |
3445 | return (-EFAULT); | |
3446 | ||
3447 | if( memcmp(signature, "MEGANIT", 7) == 0 ) { | |
3448 | ||
3449 | /* | |
3450 | * NOTE NOTE: The nit ioctl is still under flux because of | |
3451 | * change of mailbox definition, in HPE. No applications yet | |
3452 | * use this interface and let's not have applications use this | |
3453 | * interface till the new specifitions are in place. | |
3454 | */ | |
3455 | return -EINVAL; | |
3456 | #if 0 | |
3457 | if( copy_from_user(uioc, arg, sizeof(nitioctl_t)) ) | |
3458 | return (-EFAULT); | |
3459 | return 0; | |
3460 | #endif | |
3461 | } | |
3462 | ||
3463 | /* | |
3464 | * Else assume we have mimd uioctl_t as arg. Convert to nitioctl_t | |
3465 | * | |
3466 | * Get the user ioctl structure | |
3467 | */ | |
3468 | if( copy_from_user(&uioc_mimd, arg, sizeof(struct uioctl_t)) ) | |
3469 | return (-EFAULT); | |
3470 | ||
3471 | ||
3472 | /* | |
3473 | * Get the opcode and subopcode for the commands | |
3474 | */ | |
3475 | opcode = uioc_mimd.ui.fcs.opcode; | |
3476 | subopcode = uioc_mimd.ui.fcs.subopcode; | |
3477 | ||
3478 | switch (opcode) { | |
3479 | case 0x82: | |
3480 | ||
3481 | switch (subopcode) { | |
3482 | ||
3483 | case MEGAIOC_QDRVRVER: /* Query driver version */ | |
3484 | uioc->opcode = GET_DRIVER_VER; | |
3485 | uioc->uioc_uaddr = uioc_mimd.data; | |
3486 | break; | |
3487 | ||
3488 | case MEGAIOC_QNADAP: /* Get # of adapters */ | |
3489 | uioc->opcode = GET_N_ADAP; | |
3490 | uioc->uioc_uaddr = uioc_mimd.data; | |
3491 | break; | |
3492 | ||
3493 | case MEGAIOC_QADAPINFO: /* Get adapter information */ | |
3494 | uioc->opcode = GET_ADAP_INFO; | |
3495 | uioc->adapno = uioc_mimd.ui.fcs.adapno; | |
3496 | uioc->uioc_uaddr = uioc_mimd.data; | |
3497 | break; | |
3498 | ||
3499 | default: | |
3500 | return(-EINVAL); | |
3501 | } | |
3502 | ||
3503 | break; | |
3504 | ||
3505 | ||
3506 | case 0x81: | |
3507 | ||
3508 | uioc->opcode = MBOX_CMD; | |
3509 | uioc->adapno = uioc_mimd.ui.fcs.adapno; | |
3510 | ||
3511 | memcpy(uioc->uioc_rmbox, uioc_mimd.mbox, 18); | |
3512 | ||
3513 | uioc->xferlen = uioc_mimd.ui.fcs.length; | |
3514 | ||
3515 | if( uioc_mimd.outlen ) uioc->flags = UIOC_RD; | |
3516 | if( uioc_mimd.inlen ) uioc->flags |= UIOC_WR; | |
3517 | ||
3518 | break; | |
3519 | ||
3520 | case 0x80: | |
3521 | ||
3522 | uioc->opcode = MBOX_CMD; | |
3523 | uioc->adapno = uioc_mimd.ui.fcs.adapno; | |
3524 | ||
3525 | memcpy(uioc->uioc_rmbox, uioc_mimd.mbox, 18); | |
3526 | ||
3527 | /* | |
3528 | * Choose the xferlen bigger of input and output data | |
3529 | */ | |
3530 | uioc->xferlen = uioc_mimd.outlen > uioc_mimd.inlen ? | |
3531 | uioc_mimd.outlen : uioc_mimd.inlen; | |
3532 | ||
3533 | if( uioc_mimd.outlen ) uioc->flags = UIOC_RD; | |
3534 | if( uioc_mimd.inlen ) uioc->flags |= UIOC_WR; | |
3535 | ||
3536 | break; | |
3537 | ||
3538 | default: | |
3539 | return (-EINVAL); | |
3540 | ||
3541 | } | |
3542 | ||
3543 | return 0; | |
3544 | } | |
3545 | ||
3546 | /* | |
3547 | * mega_n_to_m() | |
3548 | * @arg - user address | |
3549 | * @mc - mailbox command | |
3550 | * | |
3551 | * Updates the status information to the application, depending on application | |
3552 | * conforms to older mimd ioctl interface or newer NIT ioctl interface | |
3553 | */ | |
3554 | static int | |
3555 | mega_n_to_m(void __user *arg, megacmd_t *mc) | |
3556 | { | |
3557 | nitioctl_t __user *uiocp; | |
3558 | megacmd_t __user *umc; | |
3559 | mega_passthru __user *upthru; | |
3560 | struct uioctl_t __user *uioc_mimd; | |
3561 | char signature[8] = {0}; | |
3562 | ||
3563 | /* | |
3564 | * check is the application conforms to NIT. | |
3565 | */ | |
3566 | if( copy_from_user(signature, arg, 7) ) | |
3567 | return -EFAULT; | |
3568 | ||
3569 | if( memcmp(signature, "MEGANIT", 7) == 0 ) { | |
3570 | ||
3571 | uiocp = arg; | |
3572 | ||
3573 | if( put_user(mc->status, (u8 __user *)&MBOX_P(uiocp)->status) ) | |
3574 | return (-EFAULT); | |
3575 | ||
3576 | if( mc->cmd == MEGA_MBOXCMD_PASSTHRU ) { | |
3577 | ||
3578 | umc = MBOX_P(uiocp); | |
3579 | ||
3580 | if (get_user(upthru, (mega_passthru __user * __user *)&umc->xferaddr)) | |
3581 | return -EFAULT; | |
3582 | ||
3583 | if( put_user(mc->status, (u8 __user *)&upthru->scsistatus)) | |
3584 | return (-EFAULT); | |
3585 | } | |
3586 | } | |
3587 | else { | |
3588 | uioc_mimd = arg; | |
3589 | ||
3590 | if( put_user(mc->status, (u8 __user *)&uioc_mimd->mbox[17]) ) | |
3591 | return (-EFAULT); | |
3592 | ||
3593 | if( mc->cmd == MEGA_MBOXCMD_PASSTHRU ) { | |
3594 | ||
3595 | umc = (megacmd_t __user *)uioc_mimd->mbox; | |
3596 | ||
3597 | if (get_user(upthru, (mega_passthru __user * __user *)&umc->xferaddr)) | |
3598 | return (-EFAULT); | |
3599 | ||
3600 | if( put_user(mc->status, (u8 __user *)&upthru->scsistatus) ) | |
3601 | return (-EFAULT); | |
3602 | } | |
3603 | } | |
3604 | ||
3605 | return 0; | |
3606 | } | |
3607 | ||
3608 | ||
3609 | /* | |
3610 | * MEGARAID 'FW' commands. | |
3611 | */ | |
3612 | ||
3613 | /** | |
3614 | * mega_is_bios_enabled() | |
3615 | * @adapter - pointer to our soft state | |
3616 | * | |
3617 | * issue command to find out if the BIOS is enabled for this controller | |
3618 | */ | |
3619 | static int | |
3620 | mega_is_bios_enabled(adapter_t *adapter) | |
3621 | { | |
3622 | unsigned char raw_mbox[sizeof(struct mbox_out)]; | |
3623 | mbox_t *mbox; | |
3624 | int ret; | |
3625 | ||
3626 | mbox = (mbox_t *)raw_mbox; | |
3627 | ||
3628 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); | |
3629 | ||
3630 | memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE); | |
3631 | ||
3632 | mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle; | |
3633 | ||
3634 | raw_mbox[0] = IS_BIOS_ENABLED; | |
3635 | raw_mbox[2] = GET_BIOS; | |
3636 | ||
3637 | ||
3638 | ret = issue_scb_block(adapter, raw_mbox); | |
3639 | ||
3640 | return *(char *)adapter->mega_buffer; | |
3641 | } | |
3642 | ||
3643 | ||
3644 | /** | |
3645 | * mega_enum_raid_scsi() | |
3646 | * @adapter - pointer to our soft state | |
3647 | * | |
3648 | * Find out what channels are RAID/SCSI. This information is used to | |
3649 | * differentiate the virtual channels and physical channels and to support | |
3650 | * ROMB feature and non-disk devices. | |
3651 | */ | |
3652 | static void | |
3653 | mega_enum_raid_scsi(adapter_t *adapter) | |
3654 | { | |
3655 | unsigned char raw_mbox[sizeof(struct mbox_out)]; | |
3656 | mbox_t *mbox; | |
3657 | int i; | |
3658 | ||
3659 | mbox = (mbox_t *)raw_mbox; | |
3660 | ||
3661 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); | |
3662 | ||
3663 | /* | |
3664 | * issue command to find out what channels are raid/scsi | |
3665 | */ | |
3666 | raw_mbox[0] = CHNL_CLASS; | |
3667 | raw_mbox[2] = GET_CHNL_CLASS; | |
3668 | ||
3669 | memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE); | |
3670 | ||
3671 | mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle; | |
3672 | ||
3673 | /* | |
3674 | * Non-ROMB firmware fail this command, so all channels | |
3675 | * must be shown RAID | |
3676 | */ | |
3677 | adapter->mega_ch_class = 0xFF; | |
3678 | ||
3679 | if(!issue_scb_block(adapter, raw_mbox)) { | |
3680 | adapter->mega_ch_class = *((char *)adapter->mega_buffer); | |
3681 | ||
3682 | } | |
3683 | ||
3684 | for( i = 0; i < adapter->product_info.nchannels; i++ ) { | |
3685 | if( (adapter->mega_ch_class >> i) & 0x01 ) { | |
3686 | printk(KERN_INFO "megaraid: channel[%d] is raid.\n", | |
3687 | i); | |
3688 | } | |
3689 | else { | |
3690 | printk(KERN_INFO "megaraid: channel[%d] is scsi.\n", | |
3691 | i); | |
3692 | } | |
3693 | } | |
3694 | ||
3695 | return; | |
3696 | } | |
3697 | ||
3698 | ||
3699 | /** | |
3700 | * mega_get_boot_drv() | |
3701 | * @adapter - pointer to our soft state | |
3702 | * | |
3703 | * Find out which device is the boot device. Note, any logical drive or any | |
3704 | * phyical device (e.g., a CDROM) can be designated as a boot device. | |
3705 | */ | |
3706 | static void | |
3707 | mega_get_boot_drv(adapter_t *adapter) | |
3708 | { | |
3709 | struct private_bios_data *prv_bios_data; | |
3710 | unsigned char raw_mbox[sizeof(struct mbox_out)]; | |
3711 | mbox_t *mbox; | |
3712 | u16 cksum = 0; | |
3713 | u8 *cksum_p; | |
3714 | u8 boot_pdrv; | |
3715 | int i; | |
3716 | ||
3717 | mbox = (mbox_t *)raw_mbox; | |
3718 | ||
3719 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); | |
3720 | ||
3721 | raw_mbox[0] = BIOS_PVT_DATA; | |
3722 | raw_mbox[2] = GET_BIOS_PVT_DATA; | |
3723 | ||
3724 | memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE); | |
3725 | ||
3726 | mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle; | |
3727 | ||
3728 | adapter->boot_ldrv_enabled = 0; | |
3729 | adapter->boot_ldrv = 0; | |
3730 | ||
3731 | adapter->boot_pdrv_enabled = 0; | |
3732 | adapter->boot_pdrv_ch = 0; | |
3733 | adapter->boot_pdrv_tgt = 0; | |
3734 | ||
3735 | if(issue_scb_block(adapter, raw_mbox) == 0) { | |
3736 | prv_bios_data = | |
3737 | (struct private_bios_data *)adapter->mega_buffer; | |
3738 | ||
3739 | cksum = 0; | |
3740 | cksum_p = (char *)prv_bios_data; | |
3741 | for (i = 0; i < 14; i++ ) { | |
3742 | cksum += (u16)(*cksum_p++); | |
3743 | } | |
3744 | ||
3745 | if (prv_bios_data->cksum == (u16)(0-cksum) ) { | |
3746 | ||
3747 | /* | |
3748 | * If MSB is set, a physical drive is set as boot | |
3749 | * device | |
3750 | */ | |
3751 | if( prv_bios_data->boot_drv & 0x80 ) { | |
3752 | adapter->boot_pdrv_enabled = 1; | |
3753 | boot_pdrv = prv_bios_data->boot_drv & 0x7F; | |
3754 | adapter->boot_pdrv_ch = boot_pdrv / 16; | |
3755 | adapter->boot_pdrv_tgt = boot_pdrv % 16; | |
3756 | } | |
3757 | else { | |
3758 | adapter->boot_ldrv_enabled = 1; | |
3759 | adapter->boot_ldrv = prv_bios_data->boot_drv; | |
3760 | } | |
3761 | } | |
3762 | } | |
3763 | ||
3764 | } | |
3765 | ||
3766 | /** | |
3767 | * mega_support_random_del() | |
3768 | * @adapter - pointer to our soft state | |
3769 | * | |
3770 | * Find out if this controller supports random deletion and addition of | |
3771 | * logical drives | |
3772 | */ | |
3773 | static int | |
3774 | mega_support_random_del(adapter_t *adapter) | |
3775 | { | |
3776 | unsigned char raw_mbox[sizeof(struct mbox_out)]; | |
3777 | mbox_t *mbox; | |
3778 | int rval; | |
3779 | ||
3780 | mbox = (mbox_t *)raw_mbox; | |
3781 | ||
3782 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); | |
3783 | ||
3784 | /* | |
3785 | * issue command | |
3786 | */ | |
3787 | raw_mbox[0] = FC_DEL_LOGDRV; | |
3788 | raw_mbox[2] = OP_SUP_DEL_LOGDRV; | |
3789 | ||
3790 | rval = issue_scb_block(adapter, raw_mbox); | |
3791 | ||
3792 | return !rval; | |
3793 | } | |
3794 | ||
3795 | ||
3796 | /** | |
3797 | * mega_support_ext_cdb() | |
3798 | * @adapter - pointer to our soft state | |
3799 | * | |
3800 | * Find out if this firmware support cdblen > 10 | |
3801 | */ | |
3802 | static int | |
3803 | mega_support_ext_cdb(adapter_t *adapter) | |
3804 | { | |
3805 | unsigned char raw_mbox[sizeof(struct mbox_out)]; | |
3806 | mbox_t *mbox; | |
3807 | int rval; | |
3808 | ||
3809 | mbox = (mbox_t *)raw_mbox; | |
3810 | ||
3811 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); | |
3812 | /* | |
3813 | * issue command to find out if controller supports extended CDBs. | |
3814 | */ | |
3815 | raw_mbox[0] = 0xA4; | |
3816 | raw_mbox[2] = 0x16; | |
3817 | ||
3818 | rval = issue_scb_block(adapter, raw_mbox); | |
3819 | ||
3820 | return !rval; | |
3821 | } | |
3822 | ||
3823 | ||
3824 | /** | |
3825 | * mega_del_logdrv() | |
3826 | * @adapter - pointer to our soft state | |
3827 | * @logdrv - logical drive to be deleted | |
3828 | * | |
3829 | * Delete the specified logical drive. It is the responsibility of the user | |
3830 | * app to let the OS know about this operation. | |
3831 | */ | |
3832 | static int | |
3833 | mega_del_logdrv(adapter_t *adapter, int logdrv) | |
3834 | { | |
3835 | unsigned long flags; | |
3836 | scb_t *scb; | |
3837 | int rval; | |
3838 | ||
3839 | /* | |
3840 | * Stop sending commands to the controller, queue them internally. | |
3841 | * When deletion is complete, ISR will flush the queue. | |
3842 | */ | |
3843 | atomic_set(&adapter->quiescent, 1); | |
3844 | ||
3845 | /* | |
3846 | * Wait till all the issued commands are complete and there are no | |
3847 | * commands in the pending queue | |
3848 | */ | |
3849 | while (atomic_read(&adapter->pend_cmds) > 0 || | |
3850 | !list_empty(&adapter->pending_list)) | |
3851 | msleep(1000); /* sleep for 1s */ | |
3852 | ||
3853 | rval = mega_do_del_logdrv(adapter, logdrv); | |
3854 | ||
3855 | spin_lock_irqsave(&adapter->lock, flags); | |
3856 | ||
3857 | /* | |
3858 | * If delete operation was successful, add 0x80 to the logical drive | |
3859 | * ids for commands in the pending queue. | |
3860 | */ | |
3861 | if (adapter->read_ldidmap) { | |
3862 | struct list_head *pos; | |
3863 | list_for_each(pos, &adapter->pending_list) { | |
3864 | scb = list_entry(pos, scb_t, list); | |
3865 | if (scb->pthru->logdrv < 0x80 ) | |
3866 | scb->pthru->logdrv += 0x80; | |
3867 | } | |
3868 | } | |
3869 | ||
3870 | atomic_set(&adapter->quiescent, 0); | |
3871 | ||
3872 | mega_runpendq(adapter); | |
3873 | ||
3874 | spin_unlock_irqrestore(&adapter->lock, flags); | |
3875 | ||
3876 | return rval; | |
3877 | } | |
3878 | ||
3879 | ||
3880 | static int | |
3881 | mega_do_del_logdrv(adapter_t *adapter, int logdrv) | |
3882 | { | |
3883 | megacmd_t mc; | |
3884 | int rval; | |
3885 | ||
3886 | memset( &mc, 0, sizeof(megacmd_t)); | |
3887 | ||
3888 | mc.cmd = FC_DEL_LOGDRV; | |
3889 | mc.opcode = OP_DEL_LOGDRV; | |
3890 | mc.subopcode = logdrv; | |
3891 | ||
cb0258a2 | 3892 | rval = mega_internal_command(adapter, &mc, NULL); |
1da177e4 LT |
3893 | |
3894 | /* log this event */ | |
3895 | if(rval) { | |
3896 | printk(KERN_WARNING "megaraid: Delete LD-%d failed.", logdrv); | |
3897 | return rval; | |
3898 | } | |
3899 | ||
3900 | /* | |
3901 | * After deleting first logical drive, the logical drives must be | |
3902 | * addressed by adding 0x80 to the logical drive id. | |
3903 | */ | |
3904 | adapter->read_ldidmap = 1; | |
3905 | ||
3906 | return rval; | |
3907 | } | |
3908 | ||
3909 | ||
3910 | /** | |
3911 | * mega_get_max_sgl() | |
3912 | * @adapter - pointer to our soft state | |
3913 | * | |
3914 | * Find out the maximum number of scatter-gather elements supported by this | |
3915 | * version of the firmware | |
3916 | */ | |
3917 | static void | |
3918 | mega_get_max_sgl(adapter_t *adapter) | |
3919 | { | |
3920 | unsigned char raw_mbox[sizeof(struct mbox_out)]; | |
3921 | mbox_t *mbox; | |
3922 | ||
3923 | mbox = (mbox_t *)raw_mbox; | |
3924 | ||
3925 | memset(mbox, 0, sizeof(raw_mbox)); | |
3926 | ||
3927 | memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE); | |
3928 | ||
3929 | mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle; | |
3930 | ||
3931 | raw_mbox[0] = MAIN_MISC_OPCODE; | |
3932 | raw_mbox[2] = GET_MAX_SG_SUPPORT; | |
3933 | ||
3934 | ||
3935 | if( issue_scb_block(adapter, raw_mbox) ) { | |
3936 | /* | |
3937 | * f/w does not support this command. Choose the default value | |
3938 | */ | |
3939 | adapter->sglen = MIN_SGLIST; | |
3940 | } | |
3941 | else { | |
3942 | adapter->sglen = *((char *)adapter->mega_buffer); | |
3943 | ||
3944 | /* | |
3945 | * Make sure this is not more than the resources we are | |
3946 | * planning to allocate | |
3947 | */ | |
3948 | if ( adapter->sglen > MAX_SGLIST ) | |
3949 | adapter->sglen = MAX_SGLIST; | |
3950 | } | |
3951 | ||
3952 | return; | |
3953 | } | |
3954 | ||
3955 | ||
3956 | /** | |
3957 | * mega_support_cluster() | |
3958 | * @adapter - pointer to our soft state | |
3959 | * | |
3960 | * Find out if this firmware support cluster calls. | |
3961 | */ | |
3962 | static int | |
3963 | mega_support_cluster(adapter_t *adapter) | |
3964 | { | |
3965 | unsigned char raw_mbox[sizeof(struct mbox_out)]; | |
3966 | mbox_t *mbox; | |
3967 | ||
3968 | mbox = (mbox_t *)raw_mbox; | |
3969 | ||
3970 | memset(mbox, 0, sizeof(raw_mbox)); | |
3971 | ||
3972 | memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE); | |
3973 | ||
3974 | mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle; | |
3975 | ||
3976 | /* | |
3977 | * Try to get the initiator id. This command will succeed iff the | |
3978 | * clustering is available on this HBA. | |
3979 | */ | |
3980 | raw_mbox[0] = MEGA_GET_TARGET_ID; | |
3981 | ||
3982 | if( issue_scb_block(adapter, raw_mbox) == 0 ) { | |
3983 | ||
3984 | /* | |
3985 | * Cluster support available. Get the initiator target id. | |
3986 | * Tell our id to mid-layer too. | |
3987 | */ | |
3988 | adapter->this_id = *(u32 *)adapter->mega_buffer; | |
3989 | adapter->host->this_id = adapter->this_id; | |
3990 | ||
3991 | return 1; | |
3992 | } | |
3993 | ||
3994 | return 0; | |
3995 | } | |
3996 | ||
84a3c97b | 3997 | #ifdef CONFIG_PROC_FS |
1da177e4 LT |
3998 | /** |
3999 | * mega_adapinq() | |
4000 | * @adapter - pointer to our soft state | |
4001 | * @dma_handle - DMA address of the buffer | |
4002 | * | |
8e572bab | 4003 | * Issue internal commands while interrupts are available. |
1da177e4 LT |
4004 | * We only issue direct mailbox commands from within the driver. ioctl() |
4005 | * interface using these routines can issue passthru commands. | |
4006 | */ | |
4007 | static int | |
4008 | mega_adapinq(adapter_t *adapter, dma_addr_t dma_handle) | |
4009 | { | |
4010 | megacmd_t mc; | |
4011 | ||
4012 | memset(&mc, 0, sizeof(megacmd_t)); | |
4013 | ||
4014 | if( adapter->flag & BOARD_40LD ) { | |
4015 | mc.cmd = FC_NEW_CONFIG; | |
4016 | mc.opcode = NC_SUBOP_ENQUIRY3; | |
4017 | mc.subopcode = ENQ3_GET_SOLICITED_FULL; | |
4018 | } | |
4019 | else { | |
4020 | mc.cmd = MEGA_MBOXCMD_ADPEXTINQ; | |
4021 | } | |
4022 | ||
4023 | mc.xferaddr = (u32)dma_handle; | |
4024 | ||
cb0258a2 | 4025 | if ( mega_internal_command(adapter, &mc, NULL) != 0 ) { |
1da177e4 LT |
4026 | return -1; |
4027 | } | |
4028 | ||
4029 | return 0; | |
4030 | } | |
4031 | ||
4032 | ||
4033 | /** mega_internal_dev_inquiry() | |
4034 | * @adapter - pointer to our soft state | |
4035 | * @ch - channel for this device | |
4036 | * @tgt - ID of this device | |
4037 | * @buf_dma_handle - DMA address of the buffer | |
4038 | * | |
4039 | * Issue the scsi inquiry for the specified device. | |
4040 | */ | |
4041 | static int | |
4042 | mega_internal_dev_inquiry(adapter_t *adapter, u8 ch, u8 tgt, | |
4043 | dma_addr_t buf_dma_handle) | |
4044 | { | |
4045 | mega_passthru *pthru; | |
4046 | dma_addr_t pthru_dma_handle; | |
4047 | megacmd_t mc; | |
4048 | int rval; | |
4049 | struct pci_dev *pdev; | |
4050 | ||
4051 | ||
4052 | /* | |
4053 | * For all internal commands, the buffer must be allocated in <4GB | |
4054 | * address range | |
4055 | */ | |
4056 | if( make_local_pdev(adapter, &pdev) != 0 ) return -1; | |
4057 | ||
4058 | pthru = pci_alloc_consistent(pdev, sizeof(mega_passthru), | |
4059 | &pthru_dma_handle); | |
4060 | ||
4061 | if( pthru == NULL ) { | |
4062 | free_local_pdev(pdev); | |
4063 | return -1; | |
4064 | } | |
4065 | ||
4066 | pthru->timeout = 2; | |
4067 | pthru->ars = 1; | |
4068 | pthru->reqsenselen = 14; | |
4069 | pthru->islogical = 0; | |
4070 | ||
4071 | pthru->channel = (adapter->flag & BOARD_40LD) ? 0 : ch; | |
4072 | ||
4073 | pthru->target = (adapter->flag & BOARD_40LD) ? (ch << 4)|tgt : tgt; | |
4074 | ||
4075 | pthru->cdblen = 6; | |
4076 | ||
4077 | pthru->cdb[0] = INQUIRY; | |
4078 | pthru->cdb[1] = 0; | |
4079 | pthru->cdb[2] = 0; | |
4080 | pthru->cdb[3] = 0; | |
4081 | pthru->cdb[4] = 255; | |
4082 | pthru->cdb[5] = 0; | |
4083 | ||
4084 | ||
4085 | pthru->dataxferaddr = (u32)buf_dma_handle; | |
4086 | pthru->dataxferlen = 256; | |
4087 | ||
4088 | memset(&mc, 0, sizeof(megacmd_t)); | |
4089 | ||
4090 | mc.cmd = MEGA_MBOXCMD_PASSTHRU; | |
4091 | mc.xferaddr = (u32)pthru_dma_handle; | |
4092 | ||
cb0258a2 | 4093 | rval = mega_internal_command(adapter, &mc, pthru); |
1da177e4 LT |
4094 | |
4095 | pci_free_consistent(pdev, sizeof(mega_passthru), pthru, | |
4096 | pthru_dma_handle); | |
4097 | ||
4098 | free_local_pdev(pdev); | |
4099 | ||
4100 | return rval; | |
4101 | } | |
84a3c97b | 4102 | #endif |
1da177e4 LT |
4103 | |
4104 | /** | |
4105 | * mega_internal_command() | |
4106 | * @adapter - pointer to our soft state | |
1da177e4 LT |
4107 | * @mc - the mailbox command |
4108 | * @pthru - Passthru structure for DCDB commands | |
4109 | * | |
4110 | * Issue the internal commands in interrupt mode. | |
4111 | * The last argument is the address of the passthru structure if the command | |
4112 | * to be fired is a passthru command | |
4113 | * | |
1da177e4 LT |
4114 | * Note: parameter 'pthru' is null for non-passthru commands. |
4115 | */ | |
4116 | static int | |
cb0258a2 | 4117 | mega_internal_command(adapter_t *adapter, megacmd_t *mc, mega_passthru *pthru) |
1da177e4 | 4118 | { |
0f2bb84d | 4119 | unsigned long flags; |
1da177e4 LT |
4120 | scb_t *scb; |
4121 | int rval; | |
4122 | ||
4123 | /* | |
4124 | * The internal commands share one command id and hence are | |
4125 | * serialized. This is so because we want to reserve maximum number of | |
4126 | * available command ids for the I/O commands. | |
4127 | */ | |
0b950672 | 4128 | mutex_lock(&adapter->int_mtx); |
1da177e4 LT |
4129 | |
4130 | scb = &adapter->int_scb; | |
4131 | memset(scb, 0, sizeof(scb_t)); | |
4132 | ||
0f2bb84d CH |
4133 | scb->idx = CMDID_INT_CMDS; |
4134 | scb->state |= SCB_ACTIVE | SCB_PENDQ; | |
1da177e4 LT |
4135 | |
4136 | memcpy(scb->raw_mbox, mc, sizeof(megacmd_t)); | |
4137 | ||
4138 | /* | |
4139 | * Is it a passthru command | |
4140 | */ | |
0f2bb84d | 4141 | if (mc->cmd == MEGA_MBOXCMD_PASSTHRU) |
1da177e4 | 4142 | scb->pthru = pthru; |
1da177e4 | 4143 | |
0f2bb84d CH |
4144 | spin_lock_irqsave(&adapter->lock, flags); |
4145 | list_add_tail(&scb->list, &adapter->pending_list); | |
4146 | /* | |
4147 | * Check if the HBA is in quiescent state, e.g., during a | |
4148 | * delete logical drive opertion. If it is, don't run | |
4149 | * the pending_list. | |
4150 | */ | |
4151 | if (atomic_read(&adapter->quiescent) == 0) | |
4152 | mega_runpendq(adapter); | |
4153 | spin_unlock_irqrestore(&adapter->lock, flags); | |
1da177e4 | 4154 | |
8d115f84 | 4155 | wait_for_completion(&adapter->int_waitq); |
1da177e4 | 4156 | |
0f2bb84d | 4157 | mc->status = rval = adapter->int_status; |
1da177e4 LT |
4158 | |
4159 | /* | |
4160 | * Print a debug message for all failed commands. Applications can use | |
4161 | * this information. | |
4162 | */ | |
0f2bb84d | 4163 | if (rval && trace_level) { |
1da177e4 | 4164 | printk("megaraid: cmd [%x, %x, %x] status:[%x]\n", |
0f2bb84d | 4165 | mc->cmd, mc->opcode, mc->subopcode, rval); |
1da177e4 LT |
4166 | } |
4167 | ||
0b950672 | 4168 | mutex_unlock(&adapter->int_mtx); |
1da177e4 LT |
4169 | return rval; |
4170 | } | |
4171 | ||
1da177e4 LT |
4172 | static struct scsi_host_template megaraid_template = { |
4173 | .module = THIS_MODULE, | |
4174 | .name = "MegaRAID", | |
3492b328 | 4175 | .proc_name = "megaraid_legacy", |
1da177e4 LT |
4176 | .info = megaraid_info, |
4177 | .queuecommand = megaraid_queue, | |
4178 | .bios_param = megaraid_biosparam, | |
4179 | .max_sectors = MAX_SECTORS_PER_IO, | |
4180 | .can_queue = MAX_COMMANDS, | |
4181 | .this_id = DEFAULT_INITIATOR_ID, | |
4182 | .sg_tablesize = MAX_SGLIST, | |
4183 | .cmd_per_lun = DEF_CMD_PER_LUN, | |
4184 | .use_clustering = ENABLE_CLUSTERING, | |
4185 | .eh_abort_handler = megaraid_abort, | |
4186 | .eh_device_reset_handler = megaraid_reset, | |
4187 | .eh_bus_reset_handler = megaraid_reset, | |
4188 | .eh_host_reset_handler = megaraid_reset, | |
54b2b50c | 4189 | .no_write_same = 1, |
1da177e4 LT |
4190 | }; |
4191 | ||
6f039790 | 4192 | static int |
1da177e4 LT |
4193 | megaraid_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) |
4194 | { | |
4195 | struct Scsi_Host *host; | |
4196 | adapter_t *adapter; | |
4197 | unsigned long mega_baseport, tbase, flag = 0; | |
4198 | u16 subsysid, subsysvid; | |
4199 | u8 pci_bus, pci_dev_func; | |
4200 | int irq, i, j; | |
4201 | int error = -ENODEV; | |
4202 | ||
4203 | if (pci_enable_device(pdev)) | |
4204 | goto out; | |
4205 | pci_set_master(pdev); | |
4206 | ||
4207 | pci_bus = pdev->bus->number; | |
4208 | pci_dev_func = pdev->devfn; | |
4209 | ||
4210 | /* | |
4211 | * The megaraid3 stuff reports the ID of the Intel part which is not | |
4212 | * remotely specific to the megaraid | |
4213 | */ | |
4214 | if (pdev->vendor == PCI_VENDOR_ID_INTEL) { | |
4215 | u16 magic; | |
4216 | /* | |
4217 | * Don't fall over the Compaq management cards using the same | |
4218 | * PCI identifier | |
4219 | */ | |
4220 | if (pdev->subsystem_vendor == PCI_VENDOR_ID_COMPAQ && | |
4221 | pdev->subsystem_device == 0xC000) | |
4222 | return -ENODEV; | |
4223 | /* Now check the magic signature byte */ | |
4224 | pci_read_config_word(pdev, PCI_CONF_AMISIG, &magic); | |
4225 | if (magic != HBA_SIGNATURE_471 && magic != HBA_SIGNATURE) | |
4226 | return -ENODEV; | |
4227 | /* Ok it is probably a megaraid */ | |
4228 | } | |
4229 | ||
4230 | /* | |
4231 | * For these vendor and device ids, signature offsets are not | |
4232 | * valid and 64 bit is implicit | |
4233 | */ | |
4234 | if (id->driver_data & BOARD_64BIT) | |
4235 | flag |= BOARD_64BIT; | |
4236 | else { | |
4237 | u32 magic64; | |
4238 | ||
4239 | pci_read_config_dword(pdev, PCI_CONF_AMISIG64, &magic64); | |
4240 | if (magic64 == HBA_SIGNATURE_64BIT) | |
4241 | flag |= BOARD_64BIT; | |
4242 | } | |
4243 | ||
4244 | subsysvid = pdev->subsystem_vendor; | |
4245 | subsysid = pdev->subsystem_device; | |
4246 | ||
4247 | printk(KERN_NOTICE "megaraid: found 0x%4.04x:0x%4.04x:bus %d:", | |
4248 | id->vendor, id->device, pci_bus); | |
4249 | ||
4250 | printk("slot %d:func %d\n", | |
4251 | PCI_SLOT(pci_dev_func), PCI_FUNC(pci_dev_func)); | |
4252 | ||
4253 | /* Read the base port and IRQ from PCI */ | |
4254 | mega_baseport = pci_resource_start(pdev, 0); | |
4255 | irq = pdev->irq; | |
4256 | ||
4257 | tbase = mega_baseport; | |
4258 | if (pci_resource_flags(pdev, 0) & IORESOURCE_MEM) { | |
4259 | flag |= BOARD_MEMMAP; | |
4260 | ||
4261 | if (!request_mem_region(mega_baseport, 128, "megaraid")) { | |
4262 | printk(KERN_WARNING "megaraid: mem region busy!\n"); | |
4263 | goto out_disable_device; | |
4264 | } | |
4265 | ||
4266 | mega_baseport = (unsigned long)ioremap(mega_baseport, 128); | |
4267 | if (!mega_baseport) { | |
4268 | printk(KERN_WARNING | |
4269 | "megaraid: could not map hba memory\n"); | |
4270 | goto out_release_region; | |
4271 | } | |
4272 | } else { | |
4273 | flag |= BOARD_IOMAP; | |
4274 | mega_baseport += 0x10; | |
4275 | ||
4276 | if (!request_region(mega_baseport, 16, "megaraid")) | |
4277 | goto out_disable_device; | |
4278 | } | |
4279 | ||
4280 | /* Initialize SCSI Host structure */ | |
4281 | host = scsi_host_alloc(&megaraid_template, sizeof(adapter_t)); | |
4282 | if (!host) | |
4283 | goto out_iounmap; | |
4284 | ||
4285 | adapter = (adapter_t *)host->hostdata; | |
4286 | memset(adapter, 0, sizeof(adapter_t)); | |
4287 | ||
4288 | printk(KERN_NOTICE | |
4289 | "scsi%d:Found MegaRAID controller at 0x%lx, IRQ:%d\n", | |
4290 | host->host_no, mega_baseport, irq); | |
4291 | ||
4292 | adapter->base = mega_baseport; | |
00769ec4 JG |
4293 | if (flag & BOARD_MEMMAP) |
4294 | adapter->mmio_base = (void __iomem *) mega_baseport; | |
1da177e4 LT |
4295 | |
4296 | INIT_LIST_HEAD(&adapter->free_list); | |
4297 | INIT_LIST_HEAD(&adapter->pending_list); | |
4298 | INIT_LIST_HEAD(&adapter->completed_list); | |
4299 | ||
4300 | adapter->flag = flag; | |
4301 | spin_lock_init(&adapter->lock); | |
1da177e4 LT |
4302 | |
4303 | host->cmd_per_lun = max_cmd_per_lun; | |
4304 | host->max_sectors = max_sectors_per_io; | |
4305 | ||
4306 | adapter->dev = pdev; | |
4307 | adapter->host = host; | |
4308 | ||
4309 | adapter->host->irq = irq; | |
4310 | ||
4311 | if (flag & BOARD_MEMMAP) | |
4312 | adapter->host->base = tbase; | |
4313 | else { | |
4314 | adapter->host->io_port = tbase; | |
4315 | adapter->host->n_io_port = 16; | |
4316 | } | |
4317 | ||
4318 | adapter->host->unique_id = (pci_bus << 8) | pci_dev_func; | |
4319 | ||
4320 | /* | |
4321 | * Allocate buffer to issue internal commands. | |
4322 | */ | |
4323 | adapter->mega_buffer = pci_alloc_consistent(adapter->dev, | |
4324 | MEGA_BUFFER_SIZE, &adapter->buf_dma_handle); | |
4325 | if (!adapter->mega_buffer) { | |
4326 | printk(KERN_WARNING "megaraid: out of RAM.\n"); | |
4327 | goto out_host_put; | |
4328 | } | |
4329 | ||
4330 | adapter->scb_list = kmalloc(sizeof(scb_t) * MAX_COMMANDS, GFP_KERNEL); | |
4331 | if (!adapter->scb_list) { | |
4332 | printk(KERN_WARNING "megaraid: out of RAM.\n"); | |
4333 | goto out_free_cmd_buffer; | |
4334 | } | |
4335 | ||
4336 | if (request_irq(irq, (adapter->flag & BOARD_MEMMAP) ? | |
4337 | megaraid_isr_memmapped : megaraid_isr_iomapped, | |
1d6f359a | 4338 | IRQF_SHARED, "megaraid", adapter)) { |
1da177e4 LT |
4339 | printk(KERN_WARNING |
4340 | "megaraid: Couldn't register IRQ %d!\n", irq); | |
4341 | goto out_free_scb_list; | |
4342 | } | |
4343 | ||
4344 | if (mega_setup_mailbox(adapter)) | |
4345 | goto out_free_irq; | |
4346 | ||
4347 | if (mega_query_adapter(adapter)) | |
4348 | goto out_free_mbox; | |
4349 | ||
4350 | /* | |
4351 | * Have checks for some buggy f/w | |
4352 | */ | |
4353 | if ((subsysid == 0x1111) && (subsysvid == 0x1111)) { | |
4354 | /* | |
4355 | * Which firmware | |
4356 | */ | |
4357 | if (!strcmp(adapter->fw_version, "3.00") || | |
4358 | !strcmp(adapter->fw_version, "3.01")) { | |
4359 | ||
4360 | printk( KERN_WARNING | |
4361 | "megaraid: Your card is a Dell PERC " | |
4362 | "2/SC RAID controller with " | |
4363 | "firmware\nmegaraid: 3.00 or 3.01. " | |
4364 | "This driver is known to have " | |
4365 | "corruption issues\nmegaraid: with " | |
4366 | "those firmware versions on this " | |
4367 | "specific card. In order\nmegaraid: " | |
4368 | "to protect your data, please upgrade " | |
4369 | "your firmware to version\nmegaraid: " | |
4370 | "3.10 or later, available from the " | |
4371 | "Dell Technical Support web\n" | |
4372 | "megaraid: site at\nhttp://support." | |
4373 | "dell.com/us/en/filelib/download/" | |
4374 | "index.asp?fileid=2940\n" | |
4375 | ); | |
4376 | } | |
4377 | } | |
4378 | ||
4379 | /* | |
4380 | * If we have a HP 1M(0x60E7)/2M(0x60E8) controller with | |
4381 | * firmware H.01.07, H.01.08, and H.01.09 disable 64 bit | |
4382 | * support, since this firmware cannot handle 64 bit | |
4383 | * addressing | |
4384 | */ | |
54ebfd57 | 4385 | if ((subsysvid == PCI_VENDOR_ID_HP) && |
1da177e4 LT |
4386 | ((subsysid == 0x60E7) || (subsysid == 0x60E8))) { |
4387 | /* | |
4388 | * which firmware | |
4389 | */ | |
4390 | if (!strcmp(adapter->fw_version, "H01.07") || | |
4391 | !strcmp(adapter->fw_version, "H01.08") || | |
4392 | !strcmp(adapter->fw_version, "H01.09") ) { | |
4393 | printk(KERN_WARNING | |
4394 | "megaraid: Firmware H.01.07, " | |
4395 | "H.01.08, and H.01.09 on 1M/2M " | |
4396 | "controllers\n" | |
4397 | "megaraid: do not support 64 bit " | |
4398 | "addressing.\nmegaraid: DISABLING " | |
4399 | "64 bit support.\n"); | |
4400 | adapter->flag &= ~BOARD_64BIT; | |
4401 | } | |
4402 | } | |
4403 | ||
4404 | if (mega_is_bios_enabled(adapter)) | |
4405 | mega_hbas[hba_count].is_bios_enabled = 1; | |
4406 | mega_hbas[hba_count].hostdata_addr = adapter; | |
4407 | ||
4408 | /* | |
4409 | * Find out which channel is raid and which is scsi. This is | |
4410 | * for ROMB support. | |
4411 | */ | |
4412 | mega_enum_raid_scsi(adapter); | |
4413 | ||
4414 | /* | |
4415 | * Find out if a logical drive is set as the boot drive. If | |
4416 | * there is one, will make that as the first logical drive. | |
4417 | * ROMB: Do we have to boot from a physical drive. Then all | |
4418 | * the physical drives would appear before the logical disks. | |
4419 | * Else, all the physical drives would be exported to the mid | |
4420 | * layer after logical drives. | |
4421 | */ | |
4422 | mega_get_boot_drv(adapter); | |
4423 | ||
4424 | if (adapter->boot_pdrv_enabled) { | |
4425 | j = adapter->product_info.nchannels; | |
4426 | for( i = 0; i < j; i++ ) | |
4427 | adapter->logdrv_chan[i] = 0; | |
4428 | for( i = j; i < NVIRT_CHAN + j; i++ ) | |
4429 | adapter->logdrv_chan[i] = 1; | |
4430 | } else { | |
4431 | for (i = 0; i < NVIRT_CHAN; i++) | |
4432 | adapter->logdrv_chan[i] = 1; | |
4433 | for (i = NVIRT_CHAN; i < MAX_CHANNELS+NVIRT_CHAN; i++) | |
4434 | adapter->logdrv_chan[i] = 0; | |
4435 | adapter->mega_ch_class <<= NVIRT_CHAN; | |
4436 | } | |
4437 | ||
4438 | /* | |
4439 | * Do we support random deletion and addition of logical | |
4440 | * drives | |
4441 | */ | |
4442 | adapter->read_ldidmap = 0; /* set it after first logdrv | |
4443 | delete cmd */ | |
4444 | adapter->support_random_del = mega_support_random_del(adapter); | |
4445 | ||
4446 | /* Initialize SCBs */ | |
4447 | if (mega_init_scb(adapter)) | |
4448 | goto out_free_mbox; | |
4449 | ||
4450 | /* | |
4451 | * Reset the pending commands counter | |
4452 | */ | |
4453 | atomic_set(&adapter->pend_cmds, 0); | |
4454 | ||
4455 | /* | |
4456 | * Reset the adapter quiescent flag | |
4457 | */ | |
4458 | atomic_set(&adapter->quiescent, 0); | |
4459 | ||
4460 | hba_soft_state[hba_count] = adapter; | |
4461 | ||
4462 | /* | |
4463 | * Fill in the structure which needs to be passed back to the | |
4464 | * application when it does an ioctl() for controller related | |
4465 | * information. | |
4466 | */ | |
4467 | i = hba_count; | |
4468 | ||
4469 | mcontroller[i].base = mega_baseport; | |
4470 | mcontroller[i].irq = irq; | |
4471 | mcontroller[i].numldrv = adapter->numldrv; | |
4472 | mcontroller[i].pcibus = pci_bus; | |
4473 | mcontroller[i].pcidev = id->device; | |
4474 | mcontroller[i].pcifun = PCI_FUNC (pci_dev_func); | |
4475 | mcontroller[i].pciid = -1; | |
4476 | mcontroller[i].pcivendor = id->vendor; | |
4477 | mcontroller[i].pcislot = PCI_SLOT(pci_dev_func); | |
4478 | mcontroller[i].uid = (pci_bus << 8) | pci_dev_func; | |
4479 | ||
4480 | ||
4481 | /* Set the Mode of addressing to 64 bit if we can */ | |
4482 | if ((adapter->flag & BOARD_64BIT) && (sizeof(dma_addr_t) == 8)) { | |
6a35528a | 4483 | pci_set_dma_mask(pdev, DMA_BIT_MASK(64)); |
1da177e4 LT |
4484 | adapter->has_64bit_addr = 1; |
4485 | } else { | |
284901a9 | 4486 | pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); |
1da177e4 LT |
4487 | adapter->has_64bit_addr = 0; |
4488 | } | |
4489 | ||
0b950672 | 4490 | mutex_init(&adapter->int_mtx); |
8d115f84 | 4491 | init_completion(&adapter->int_waitq); |
1da177e4 LT |
4492 | |
4493 | adapter->this_id = DEFAULT_INITIATOR_ID; | |
4494 | adapter->host->this_id = DEFAULT_INITIATOR_ID; | |
4495 | ||
4496 | #if MEGA_HAVE_CLUSTERING | |
4497 | /* | |
4498 | * Is cluster support enabled on this controller | |
4499 | * Note: In a cluster the HBAs ( the initiators ) will have | |
4500 | * different target IDs and we cannot assume it to be 7. Call | |
4501 | * to mega_support_cluster() will get the target ids also if | |
4502 | * the cluster support is available | |
4503 | */ | |
4504 | adapter->has_cluster = mega_support_cluster(adapter); | |
4505 | if (adapter->has_cluster) { | |
4506 | printk(KERN_NOTICE | |
4507 | "megaraid: Cluster driver, initiator id:%d\n", | |
4508 | adapter->this_id); | |
4509 | } | |
4510 | #endif | |
4511 | ||
4512 | pci_set_drvdata(pdev, host); | |
4513 | ||
4514 | mega_create_proc_entry(hba_count, mega_proc_dir_entry); | |
4515 | ||
4516 | error = scsi_add_host(host, &pdev->dev); | |
4517 | if (error) | |
4518 | goto out_free_mbox; | |
4519 | ||
4520 | scsi_scan_host(host); | |
4521 | hba_count++; | |
4522 | return 0; | |
4523 | ||
4524 | out_free_mbox: | |
4525 | pci_free_consistent(adapter->dev, sizeof(mbox64_t), | |
4526 | adapter->una_mbox64, adapter->una_mbox64_dma); | |
4527 | out_free_irq: | |
4528 | free_irq(adapter->host->irq, adapter); | |
4529 | out_free_scb_list: | |
4530 | kfree(adapter->scb_list); | |
4531 | out_free_cmd_buffer: | |
4532 | pci_free_consistent(adapter->dev, MEGA_BUFFER_SIZE, | |
4533 | adapter->mega_buffer, adapter->buf_dma_handle); | |
4534 | out_host_put: | |
4535 | scsi_host_put(host); | |
4536 | out_iounmap: | |
4537 | if (flag & BOARD_MEMMAP) | |
4538 | iounmap((void *)mega_baseport); | |
4539 | out_release_region: | |
4540 | if (flag & BOARD_MEMMAP) | |
4541 | release_mem_region(tbase, 128); | |
4542 | else | |
4543 | release_region(mega_baseport, 16); | |
4544 | out_disable_device: | |
4545 | pci_disable_device(pdev); | |
4546 | out: | |
4547 | return error; | |
4548 | } | |
4549 | ||
4550 | static void | |
4551 | __megaraid_shutdown(adapter_t *adapter) | |
4552 | { | |
4553 | u_char raw_mbox[sizeof(struct mbox_out)]; | |
4554 | mbox_t *mbox = (mbox_t *)raw_mbox; | |
4555 | int i; | |
4556 | ||
4557 | /* Flush adapter cache */ | |
4558 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); | |
4559 | raw_mbox[0] = FLUSH_ADAPTER; | |
4560 | ||
4561 | free_irq(adapter->host->irq, adapter); | |
4562 | ||
4563 | /* Issue a blocking (interrupts disabled) command to the card */ | |
4564 | issue_scb_block(adapter, raw_mbox); | |
4565 | ||
4566 | /* Flush disks cache */ | |
4567 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); | |
4568 | raw_mbox[0] = FLUSH_SYSTEM; | |
4569 | ||
4570 | /* Issue a blocking (interrupts disabled) command to the card */ | |
4571 | issue_scb_block(adapter, raw_mbox); | |
4572 | ||
4573 | if (atomic_read(&adapter->pend_cmds) > 0) | |
4574 | printk(KERN_WARNING "megaraid: pending commands!!\n"); | |
4575 | ||
4576 | /* | |
4577 | * Have a delibrate delay to make sure all the caches are | |
4578 | * actually flushed. | |
4579 | */ | |
4580 | for (i = 0; i <= 10; i++) | |
4581 | mdelay(1000); | |
4582 | } | |
4583 | ||
6f039790 | 4584 | static void |
1da177e4 LT |
4585 | megaraid_remove_one(struct pci_dev *pdev) |
4586 | { | |
4587 | struct Scsi_Host *host = pci_get_drvdata(pdev); | |
4588 | adapter_t *adapter = (adapter_t *)host->hostdata; | |
1da177e4 LT |
4589 | |
4590 | scsi_remove_host(host); | |
4591 | ||
4592 | __megaraid_shutdown(adapter); | |
4593 | ||
4594 | /* Free our resources */ | |
4595 | if (adapter->flag & BOARD_MEMMAP) { | |
4596 | iounmap((void *)adapter->base); | |
4597 | release_mem_region(adapter->host->base, 128); | |
4598 | } else | |
4599 | release_region(adapter->base, 16); | |
4600 | ||
4601 | mega_free_sgl(adapter); | |
4602 | ||
4603 | #ifdef CONFIG_PROC_FS | |
4604 | if (adapter->controller_proc_dir_entry) { | |
4605 | remove_proc_entry("stat", adapter->controller_proc_dir_entry); | |
4606 | remove_proc_entry("config", | |
4607 | adapter->controller_proc_dir_entry); | |
4608 | remove_proc_entry("mailbox", | |
4609 | adapter->controller_proc_dir_entry); | |
4610 | #if MEGA_HAVE_ENH_PROC | |
4611 | remove_proc_entry("rebuild-rate", | |
4612 | adapter->controller_proc_dir_entry); | |
4613 | remove_proc_entry("battery-status", | |
4614 | adapter->controller_proc_dir_entry); | |
4615 | ||
4616 | remove_proc_entry("diskdrives-ch0", | |
4617 | adapter->controller_proc_dir_entry); | |
4618 | remove_proc_entry("diskdrives-ch1", | |
4619 | adapter->controller_proc_dir_entry); | |
4620 | remove_proc_entry("diskdrives-ch2", | |
4621 | adapter->controller_proc_dir_entry); | |
4622 | remove_proc_entry("diskdrives-ch3", | |
4623 | adapter->controller_proc_dir_entry); | |
4624 | ||
4625 | remove_proc_entry("raiddrives-0-9", | |
4626 | adapter->controller_proc_dir_entry); | |
4627 | remove_proc_entry("raiddrives-10-19", | |
4628 | adapter->controller_proc_dir_entry); | |
4629 | remove_proc_entry("raiddrives-20-29", | |
4630 | adapter->controller_proc_dir_entry); | |
4631 | remove_proc_entry("raiddrives-30-39", | |
4632 | adapter->controller_proc_dir_entry); | |
4633 | #endif | |
84a3c97b | 4634 | { |
4635 | char buf[12] = { 0 }; | |
4636 | sprintf(buf, "hba%d", adapter->host->host_no); | |
4637 | remove_proc_entry(buf, mega_proc_dir_entry); | |
4638 | } | |
1da177e4 LT |
4639 | } |
4640 | #endif | |
4641 | ||
4642 | pci_free_consistent(adapter->dev, MEGA_BUFFER_SIZE, | |
4643 | adapter->mega_buffer, adapter->buf_dma_handle); | |
4644 | kfree(adapter->scb_list); | |
4645 | pci_free_consistent(adapter->dev, sizeof(mbox64_t), | |
4646 | adapter->una_mbox64, adapter->una_mbox64_dma); | |
4647 | ||
4648 | scsi_host_put(host); | |
4649 | pci_disable_device(pdev); | |
4650 | ||
4651 | hba_count--; | |
4652 | } | |
4653 | ||
4654 | static void | |
d18c3db5 | 4655 | megaraid_shutdown(struct pci_dev *pdev) |
1da177e4 | 4656 | { |
d18c3db5 | 4657 | struct Scsi_Host *host = pci_get_drvdata(pdev); |
1da177e4 LT |
4658 | adapter_t *adapter = (adapter_t *)host->hostdata; |
4659 | ||
4660 | __megaraid_shutdown(adapter); | |
4661 | } | |
4662 | ||
4663 | static struct pci_device_id megaraid_pci_tbl[] = { | |
1da177e4 LT |
4664 | {PCI_VENDOR_ID_AMI, PCI_DEVICE_ID_AMI_MEGARAID, |
4665 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, | |
4666 | {PCI_VENDOR_ID_AMI, PCI_DEVICE_ID_AMI_MEGARAID2, | |
4667 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, | |
1da177e4 LT |
4668 | {PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_AMI_MEGARAID3, |
4669 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, | |
1da177e4 LT |
4670 | {0,} |
4671 | }; | |
4672 | MODULE_DEVICE_TABLE(pci, megaraid_pci_tbl); | |
4673 | ||
4674 | static struct pci_driver megaraid_pci_driver = { | |
3542adcb | 4675 | .name = "megaraid_legacy", |
1da177e4 LT |
4676 | .id_table = megaraid_pci_tbl, |
4677 | .probe = megaraid_probe_one, | |
6f039790 | 4678 | .remove = megaraid_remove_one, |
d18c3db5 | 4679 | .shutdown = megaraid_shutdown, |
1da177e4 LT |
4680 | }; |
4681 | ||
4682 | static int __init megaraid_init(void) | |
4683 | { | |
4684 | int error; | |
4685 | ||
4686 | if ((max_cmd_per_lun <= 0) || (max_cmd_per_lun > MAX_CMD_PER_LUN)) | |
4687 | max_cmd_per_lun = MAX_CMD_PER_LUN; | |
4688 | if (max_mbox_busy_wait > MBOX_BUSY_WAIT) | |
4689 | max_mbox_busy_wait = MBOX_BUSY_WAIT; | |
4690 | ||
4691 | #ifdef CONFIG_PROC_FS | |
c74c120a | 4692 | mega_proc_dir_entry = proc_mkdir("megaraid", NULL); |
1da177e4 LT |
4693 | if (!mega_proc_dir_entry) { |
4694 | printk(KERN_WARNING | |
4695 | "megaraid: failed to create megaraid root\n"); | |
4696 | } | |
4697 | #endif | |
4520b008 | 4698 | error = pci_register_driver(&megaraid_pci_driver); |
1da177e4 LT |
4699 | if (error) { |
4700 | #ifdef CONFIG_PROC_FS | |
c74c120a | 4701 | remove_proc_entry("megaraid", NULL); |
1da177e4 LT |
4702 | #endif |
4703 | return error; | |
4704 | } | |
4705 | ||
4706 | /* | |
4707 | * Register the driver as a character device, for applications | |
4708 | * to access it for ioctls. | |
4709 | * First argument (major) to register_chrdev implies a dynamic | |
4710 | * major number allocation. | |
4711 | */ | |
3492b328 | 4712 | major = register_chrdev(0, "megadev_legacy", &megadev_fops); |
1da177e4 LT |
4713 | if (!major) { |
4714 | printk(KERN_WARNING | |
4715 | "megaraid: failed to register char device\n"); | |
4716 | } | |
4717 | ||
4718 | return 0; | |
4719 | } | |
4720 | ||
4721 | static void __exit megaraid_exit(void) | |
4722 | { | |
4723 | /* | |
4724 | * Unregister the character device interface to the driver. | |
4725 | */ | |
3492b328 | 4726 | unregister_chrdev(major, "megadev_legacy"); |
1da177e4 LT |
4727 | |
4728 | pci_unregister_driver(&megaraid_pci_driver); | |
4729 | ||
4730 | #ifdef CONFIG_PROC_FS | |
c74c120a | 4731 | remove_proc_entry("megaraid", NULL); |
1da177e4 LT |
4732 | #endif |
4733 | } | |
4734 | ||
4735 | module_init(megaraid_init); | |
4736 | module_exit(megaraid_exit); | |
4737 | ||
4738 | /* vi: set ts=8 sw=8 tw=78: */ |