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2874c5fd | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
1da177e4 LT |
2 | /* |
3 | * | |
4 | * Linux MegaRAID device driver | |
5 | * | |
3492b328 | 6 | * Copyright (c) 2002 LSI Logic Corporation. |
1da177e4 | 7 | * |
1da177e4 LT |
8 | * Copyright (c) 2002 Red Hat, Inc. All rights reserved. |
9 | * - fixes | |
10 | * - speed-ups (list handling fixes, issued_list, optimizations.) | |
11 | * - lots of cleanups. | |
12 | * | |
13 | * Copyright (c) 2003 Christoph Hellwig <hch@lst.de> | |
14 | * - new-style, hotplug-aware pci probing and scsi registration | |
15 | * | |
3492b328 JS |
16 | * Version : v2.00.4 Mon Nov 14 14:02:43 EST 2005 - Seokmann Ju |
17 | * <Seokmann.Ju@lsil.com> | |
1da177e4 LT |
18 | * |
19 | * Description: Linux device driver for LSI Logic MegaRAID controller | |
20 | * | |
21 | * Supported controllers: MegaRAID 418, 428, 438, 466, 762, 467, 471, 490, 493 | |
22 | * 518, 520, 531, 532 | |
23 | * | |
24 | * This driver is supported by LSI Logic, with assistance from Red Hat, Dell, | |
25 | * and others. Please send updates to the mailing list | |
26 | * linux-scsi@vger.kernel.org . | |
1da177e4 LT |
27 | */ |
28 | ||
29 | #include <linux/mm.h> | |
30 | #include <linux/fs.h> | |
31 | #include <linux/blkdev.h> | |
7c0f6ba6 | 32 | #include <linux/uaccess.h> |
1da177e4 | 33 | #include <asm/io.h> |
8d115f84 | 34 | #include <linux/completion.h> |
1da177e4 LT |
35 | #include <linux/delay.h> |
36 | #include <linux/proc_fs.h> | |
c7f079ca | 37 | #include <linux/seq_file.h> |
1da177e4 LT |
38 | #include <linux/reboot.h> |
39 | #include <linux/module.h> | |
40 | #include <linux/list.h> | |
41 | #include <linux/interrupt.h> | |
42 | #include <linux/pci.h> | |
43 | #include <linux/init.h> | |
910638ae | 44 | #include <linux/dma-mapping.h> |
c45d15d2 | 45 | #include <linux/mutex.h> |
5a0e3ad6 | 46 | #include <linux/slab.h> |
1da177e4 LT |
47 | #include <scsi/scsicam.h> |
48 | ||
49 | #include "scsi.h" | |
50 | #include <scsi/scsi_host.h> | |
51 | ||
52 | #include "megaraid.h" | |
53 | ||
3492b328 | 54 | #define MEGARAID_MODULE_VERSION "2.00.4" |
1da177e4 | 55 | |
3492b328 JS |
56 | MODULE_AUTHOR ("sju@lsil.com"); |
57 | MODULE_DESCRIPTION ("LSI Logic MegaRAID legacy driver"); | |
1da177e4 LT |
58 | MODULE_LICENSE ("GPL"); |
59 | MODULE_VERSION(MEGARAID_MODULE_VERSION); | |
60 | ||
c45d15d2 | 61 | static DEFINE_MUTEX(megadev_mutex); |
1da177e4 LT |
62 | static unsigned int max_cmd_per_lun = DEF_CMD_PER_LUN; |
63 | module_param(max_cmd_per_lun, uint, 0); | |
64 | 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)"); | |
65 | ||
66 | static unsigned short int max_sectors_per_io = MAX_SECTORS_PER_IO; | |
67 | module_param(max_sectors_per_io, ushort, 0); | |
68 | MODULE_PARM_DESC(max_sectors_per_io, "Maximum number of sectors per I/O request (default=MAX_SECTORS_PER_IO=128)"); | |
69 | ||
70 | ||
71 | static unsigned short int max_mbox_busy_wait = MBOX_BUSY_WAIT; | |
72 | module_param(max_mbox_busy_wait, ushort, 0); | |
73 | MODULE_PARM_DESC(max_mbox_busy_wait, "Maximum wait for mailbox in microseconds if busy (default=MBOX_BUSY_WAIT=10)"); | |
74 | ||
00769ec4 JG |
75 | #define RDINDOOR(adapter) readl((adapter)->mmio_base + 0x20) |
76 | #define RDOUTDOOR(adapter) readl((adapter)->mmio_base + 0x2C) | |
77 | #define WRINDOOR(adapter,value) writel(value, (adapter)->mmio_base + 0x20) | |
78 | #define WROUTDOOR(adapter,value) writel(value, (adapter)->mmio_base + 0x2C) | |
1da177e4 LT |
79 | |
80 | /* | |
81 | * Global variables | |
82 | */ | |
83 | ||
84 | static int hba_count; | |
85 | static adapter_t *hba_soft_state[MAX_CONTROLLERS]; | |
86 | static struct proc_dir_entry *mega_proc_dir_entry; | |
87 | ||
88 | /* For controller re-ordering */ | |
89 | static struct mega_hbas mega_hbas[MAX_CONTROLLERS]; | |
90 | ||
f4927c45 AB |
91 | static long |
92 | megadev_unlocked_ioctl(struct file *filep, unsigned int cmd, unsigned long arg); | |
93 | ||
1da177e4 LT |
94 | /* |
95 | * The File Operations structure for the serial/ioctl interface of the driver | |
96 | */ | |
00977a59 | 97 | static const struct file_operations megadev_fops = { |
1da177e4 | 98 | .owner = THIS_MODULE, |
f4927c45 | 99 | .unlocked_ioctl = megadev_unlocked_ioctl, |
1da177e4 | 100 | .open = megadev_open, |
6038f373 | 101 | .llseek = noop_llseek, |
1da177e4 LT |
102 | }; |
103 | ||
104 | /* | |
105 | * Array to structures for storing the information about the controllers. This | |
106 | * information is sent to the user level applications, when they do an ioctl | |
107 | * for this information. | |
108 | */ | |
109 | static struct mcontroller mcontroller[MAX_CONTROLLERS]; | |
110 | ||
111 | /* The current driver version */ | |
112 | static u32 driver_ver = 0x02000000; | |
113 | ||
114 | /* major number used by the device for character interface */ | |
115 | static int major; | |
116 | ||
117 | #define IS_RAID_CH(hba, ch) (((hba)->mega_ch_class >> (ch)) & 0x01) | |
118 | ||
119 | ||
120 | /* | |
121 | * Debug variable to print some diagnostic messages | |
122 | */ | |
123 | static int trace_level; | |
124 | ||
125 | /** | |
126 | * mega_setup_mailbox() | |
127 | * @adapter - pointer to our soft state | |
128 | * | |
129 | * Allocates a 8 byte aligned memory for the handshake mailbox. | |
130 | */ | |
131 | static int | |
132 | mega_setup_mailbox(adapter_t *adapter) | |
133 | { | |
134 | unsigned long align; | |
135 | ||
136 | adapter->una_mbox64 = pci_alloc_consistent(adapter->dev, | |
137 | sizeof(mbox64_t), &adapter->una_mbox64_dma); | |
138 | ||
139 | if( !adapter->una_mbox64 ) return -1; | |
140 | ||
141 | adapter->mbox = &adapter->una_mbox64->mbox; | |
142 | ||
143 | adapter->mbox = (mbox_t *)((((unsigned long) adapter->mbox) + 15) & | |
144 | (~0UL ^ 0xFUL)); | |
145 | ||
146 | adapter->mbox64 = (mbox64_t *)(((unsigned long)adapter->mbox) - 8); | |
147 | ||
148 | align = ((void *)adapter->mbox) - ((void *)&adapter->una_mbox64->mbox); | |
149 | ||
150 | adapter->mbox_dma = adapter->una_mbox64_dma + 8 + align; | |
151 | ||
152 | /* | |
153 | * Register the mailbox if the controller is an io-mapped controller | |
154 | */ | |
155 | if( adapter->flag & BOARD_IOMAP ) { | |
156 | ||
7d1abbe8 | 157 | outb(adapter->mbox_dma & 0xFF, |
1da177e4 LT |
158 | adapter->host->io_port + MBOX_PORT0); |
159 | ||
7d1abbe8 | 160 | outb((adapter->mbox_dma >> 8) & 0xFF, |
1da177e4 LT |
161 | adapter->host->io_port + MBOX_PORT1); |
162 | ||
7d1abbe8 | 163 | outb((adapter->mbox_dma >> 16) & 0xFF, |
1da177e4 LT |
164 | adapter->host->io_port + MBOX_PORT2); |
165 | ||
7d1abbe8 | 166 | outb((adapter->mbox_dma >> 24) & 0xFF, |
1da177e4 LT |
167 | adapter->host->io_port + MBOX_PORT3); |
168 | ||
7d1abbe8 | 169 | outb(ENABLE_MBOX_BYTE, |
1da177e4 LT |
170 | adapter->host->io_port + ENABLE_MBOX_REGION); |
171 | ||
172 | irq_ack(adapter); | |
173 | ||
174 | irq_enable(adapter); | |
175 | } | |
176 | ||
177 | return 0; | |
178 | } | |
179 | ||
180 | ||
181 | /* | |
182 | * mega_query_adapter() | |
183 | * @adapter - pointer to our soft state | |
184 | * | |
185 | * Issue the adapter inquiry commands to the controller and find out | |
186 | * information and parameter about the devices attached | |
187 | */ | |
188 | static int | |
189 | mega_query_adapter(adapter_t *adapter) | |
190 | { | |
191 | dma_addr_t prod_info_dma_handle; | |
192 | mega_inquiry3 *inquiry3; | |
193 | u8 raw_mbox[sizeof(struct mbox_out)]; | |
194 | mbox_t *mbox; | |
195 | int retval; | |
196 | ||
197 | /* Initialize adapter inquiry mailbox */ | |
198 | ||
199 | mbox = (mbox_t *)raw_mbox; | |
200 | ||
201 | memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE); | |
202 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); | |
203 | ||
204 | /* | |
205 | * Try to issue Inquiry3 command | |
206 | * if not succeeded, then issue MEGA_MBOXCMD_ADAPTERINQ command and | |
207 | * update enquiry3 structure | |
208 | */ | |
209 | mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle; | |
210 | ||
211 | inquiry3 = (mega_inquiry3 *)adapter->mega_buffer; | |
212 | ||
213 | raw_mbox[0] = FC_NEW_CONFIG; /* i.e. mbox->cmd=0xA1 */ | |
214 | raw_mbox[2] = NC_SUBOP_ENQUIRY3; /* i.e. 0x0F */ | |
215 | raw_mbox[3] = ENQ3_GET_SOLICITED_FULL; /* i.e. 0x02 */ | |
216 | ||
217 | /* Issue a blocking command to the card */ | |
218 | if ((retval = issue_scb_block(adapter, raw_mbox))) { | |
219 | /* the adapter does not support 40ld */ | |
220 | ||
221 | mraid_ext_inquiry *ext_inq; | |
222 | mraid_inquiry *inq; | |
223 | dma_addr_t dma_handle; | |
224 | ||
225 | ext_inq = pci_alloc_consistent(adapter->dev, | |
226 | sizeof(mraid_ext_inquiry), &dma_handle); | |
227 | ||
228 | if( ext_inq == NULL ) return -1; | |
229 | ||
230 | inq = &ext_inq->raid_inq; | |
231 | ||
232 | mbox->m_out.xferaddr = (u32)dma_handle; | |
233 | ||
234 | /*issue old 0x04 command to adapter */ | |
235 | mbox->m_out.cmd = MEGA_MBOXCMD_ADPEXTINQ; | |
236 | ||
237 | issue_scb_block(adapter, raw_mbox); | |
238 | ||
239 | /* | |
240 | * update Enquiry3 and ProductInfo structures with | |
241 | * mraid_inquiry structure | |
242 | */ | |
243 | mega_8_to_40ld(inq, inquiry3, | |
244 | (mega_product_info *)&adapter->product_info); | |
245 | ||
246 | pci_free_consistent(adapter->dev, sizeof(mraid_ext_inquiry), | |
247 | ext_inq, dma_handle); | |
248 | ||
249 | } else { /*adapter supports 40ld */ | |
250 | adapter->flag |= BOARD_40LD; | |
251 | ||
252 | /* | |
253 | * get product_info, which is static information and will be | |
254 | * unchanged | |
255 | */ | |
256 | prod_info_dma_handle = pci_map_single(adapter->dev, (void *) | |
257 | &adapter->product_info, | |
258 | sizeof(mega_product_info), PCI_DMA_FROMDEVICE); | |
259 | ||
260 | mbox->m_out.xferaddr = prod_info_dma_handle; | |
261 | ||
262 | raw_mbox[0] = FC_NEW_CONFIG; /* i.e. mbox->cmd=0xA1 */ | |
263 | raw_mbox[2] = NC_SUBOP_PRODUCT_INFO; /* i.e. 0x0E */ | |
264 | ||
265 | if ((retval = issue_scb_block(adapter, raw_mbox))) | |
3b8a1ba3 BH |
266 | dev_warn(&adapter->dev->dev, |
267 | "Product_info cmd failed with error: %d\n", | |
1da177e4 LT |
268 | retval); |
269 | ||
270 | pci_unmap_single(adapter->dev, prod_info_dma_handle, | |
271 | sizeof(mega_product_info), PCI_DMA_FROMDEVICE); | |
272 | } | |
273 | ||
274 | ||
275 | /* | |
276 | * kernel scans the channels from 0 to <= max_channel | |
277 | */ | |
278 | adapter->host->max_channel = | |
279 | adapter->product_info.nchannels + NVIRT_CHAN -1; | |
280 | ||
281 | adapter->host->max_id = 16; /* max targets per channel */ | |
282 | ||
25985edc | 283 | adapter->host->max_lun = 7; /* Up to 7 luns for non disk devices */ |
1da177e4 LT |
284 | |
285 | adapter->host->cmd_per_lun = max_cmd_per_lun; | |
286 | ||
287 | adapter->numldrv = inquiry3->num_ldrv; | |
288 | ||
289 | adapter->max_cmds = adapter->product_info.max_commands; | |
290 | ||
291 | if(adapter->max_cmds > MAX_COMMANDS) | |
292 | adapter->max_cmds = MAX_COMMANDS; | |
293 | ||
294 | adapter->host->can_queue = adapter->max_cmds - 1; | |
295 | ||
296 | /* | |
297 | * Get the maximum number of scatter-gather elements supported by this | |
298 | * firmware | |
299 | */ | |
300 | mega_get_max_sgl(adapter); | |
301 | ||
302 | adapter->host->sg_tablesize = adapter->sglen; | |
303 | ||
124dd90f AR |
304 | /* use HP firmware and bios version encoding |
305 | Note: fw_version[0|1] and bios_version[0|1] were originally shifted | |
306 | right 8 bits making them zero. This 0 value was hardcoded to fix | |
307 | sparse warnings. */ | |
54ebfd57 | 308 | if (adapter->product_info.subsysvid == PCI_VENDOR_ID_HP) { |
875826a7 AB |
309 | snprintf(adapter->fw_version, sizeof(adapter->fw_version), |
310 | "%c%d%d.%d%d", | |
1da177e4 | 311 | adapter->product_info.fw_version[2], |
124dd90f | 312 | 0, |
1da177e4 | 313 | adapter->product_info.fw_version[1] & 0x0f, |
124dd90f | 314 | 0, |
1da177e4 | 315 | adapter->product_info.fw_version[0] & 0x0f); |
875826a7 AB |
316 | snprintf(adapter->bios_version, sizeof(adapter->fw_version), |
317 | "%c%d%d.%d%d", | |
1da177e4 | 318 | adapter->product_info.bios_version[2], |
124dd90f | 319 | 0, |
1da177e4 | 320 | adapter->product_info.bios_version[1] & 0x0f, |
124dd90f | 321 | 0, |
1da177e4 LT |
322 | adapter->product_info.bios_version[0] & 0x0f); |
323 | } else { | |
324 | memcpy(adapter->fw_version, | |
325 | (char *)adapter->product_info.fw_version, 4); | |
326 | adapter->fw_version[4] = 0; | |
327 | ||
328 | memcpy(adapter->bios_version, | |
329 | (char *)adapter->product_info.bios_version, 4); | |
330 | ||
331 | adapter->bios_version[4] = 0; | |
332 | } | |
333 | ||
3b8a1ba3 | 334 | dev_notice(&adapter->dev->dev, "[%s:%s] detected %d logical drives\n", |
1da177e4 LT |
335 | adapter->fw_version, adapter->bios_version, adapter->numldrv); |
336 | ||
337 | /* | |
338 | * Do we support extended (>10 bytes) cdbs | |
339 | */ | |
340 | adapter->support_ext_cdb = mega_support_ext_cdb(adapter); | |
341 | if (adapter->support_ext_cdb) | |
3b8a1ba3 | 342 | dev_notice(&adapter->dev->dev, "supports extended CDBs\n"); |
1da177e4 LT |
343 | |
344 | ||
345 | return 0; | |
346 | } | |
347 | ||
348 | /** | |
349 | * mega_runpendq() | |
350 | * @adapter - pointer to our soft state | |
351 | * | |
352 | * Runs through the list of pending requests. | |
353 | */ | |
354 | static inline void | |
355 | mega_runpendq(adapter_t *adapter) | |
356 | { | |
357 | if(!list_empty(&adapter->pending_list)) | |
358 | __mega_runpendq(adapter); | |
359 | } | |
360 | ||
361 | /* | |
362 | * megaraid_queue() | |
363 | * @scmd - Issue this scsi command | |
364 | * @done - the callback hook into the scsi mid-layer | |
365 | * | |
366 | * The command queuing entry point for the mid-layer. | |
367 | */ | |
368 | static int | |
91ebc1fa | 369 | megaraid_queue_lck(struct scsi_cmnd *scmd, void (*done)(struct scsi_cmnd *)) |
1da177e4 LT |
370 | { |
371 | adapter_t *adapter; | |
372 | scb_t *scb; | |
373 | int busy=0; | |
cb0258a2 | 374 | unsigned long flags; |
1da177e4 LT |
375 | |
376 | adapter = (adapter_t *)scmd->device->host->hostdata; | |
377 | ||
378 | scmd->scsi_done = done; | |
379 | ||
380 | ||
381 | /* | |
382 | * Allocate and build a SCB request | |
383 | * busy flag will be set if mega_build_cmd() command could not | |
384 | * allocate scb. We will return non-zero status in that case. | |
385 | * NOTE: scb can be null even though certain commands completed | |
386 | * successfully, e.g., MODE_SENSE and TEST_UNIT_READY, we would | |
387 | * return 0 in that case. | |
388 | */ | |
389 | ||
cb0258a2 | 390 | spin_lock_irqsave(&adapter->lock, flags); |
1da177e4 | 391 | scb = mega_build_cmd(adapter, scmd, &busy); |
238f9b06 CH |
392 | if (!scb) |
393 | goto out; | |
1da177e4 | 394 | |
238f9b06 CH |
395 | scb->state |= SCB_PENDQ; |
396 | list_add_tail(&scb->list, &adapter->pending_list); | |
1da177e4 | 397 | |
238f9b06 CH |
398 | /* |
399 | * Check if the HBA is in quiescent state, e.g., during a | |
400 | * delete logical drive opertion. If it is, don't run | |
401 | * the pending_list. | |
402 | */ | |
403 | if (atomic_read(&adapter->quiescent) == 0) | |
404 | mega_runpendq(adapter); | |
1da177e4 | 405 | |
238f9b06 CH |
406 | busy = 0; |
407 | out: | |
408 | spin_unlock_irqrestore(&adapter->lock, flags); | |
1da177e4 LT |
409 | return busy; |
410 | } | |
411 | ||
f281233d JG |
412 | static DEF_SCSI_QCMD(megaraid_queue) |
413 | ||
1da177e4 LT |
414 | /** |
415 | * mega_allocate_scb() | |
416 | * @adapter - pointer to our soft state | |
417 | * @cmd - scsi command from the mid-layer | |
418 | * | |
419 | * Allocate a SCB structure. This is the central structure for controller | |
420 | * commands. | |
421 | */ | |
422 | static inline scb_t * | |
91ebc1fa | 423 | mega_allocate_scb(adapter_t *adapter, struct scsi_cmnd *cmd) |
1da177e4 LT |
424 | { |
425 | struct list_head *head = &adapter->free_list; | |
426 | scb_t *scb; | |
427 | ||
428 | /* Unlink command from Free List */ | |
429 | if( !list_empty(head) ) { | |
430 | ||
431 | scb = list_entry(head->next, scb_t, list); | |
432 | ||
433 | list_del_init(head->next); | |
434 | ||
435 | scb->state = SCB_ACTIVE; | |
436 | scb->cmd = cmd; | |
437 | scb->dma_type = MEGA_DMA_TYPE_NONE; | |
438 | ||
439 | return scb; | |
440 | } | |
441 | ||
442 | return NULL; | |
443 | } | |
444 | ||
445 | /** | |
446 | * mega_get_ldrv_num() | |
447 | * @adapter - pointer to our soft state | |
448 | * @cmd - scsi mid layer command | |
449 | * @channel - channel on the controller | |
450 | * | |
451 | * Calculate the logical drive number based on the information in scsi command | |
452 | * and the channel number. | |
453 | */ | |
454 | static inline int | |
91ebc1fa | 455 | mega_get_ldrv_num(adapter_t *adapter, struct scsi_cmnd *cmd, int channel) |
1da177e4 LT |
456 | { |
457 | int tgt; | |
458 | int ldrv_num; | |
459 | ||
460 | tgt = cmd->device->id; | |
461 | ||
462 | if ( tgt > adapter->this_id ) | |
463 | tgt--; /* we do not get inquires for initiator id */ | |
464 | ||
465 | ldrv_num = (channel * 15) + tgt; | |
466 | ||
467 | ||
468 | /* | |
469 | * If we have a logical drive with boot enabled, project it first | |
470 | */ | |
471 | if( adapter->boot_ldrv_enabled ) { | |
472 | if( ldrv_num == 0 ) { | |
473 | ldrv_num = adapter->boot_ldrv; | |
474 | } | |
475 | else { | |
476 | if( ldrv_num <= adapter->boot_ldrv ) { | |
477 | ldrv_num--; | |
478 | } | |
479 | } | |
480 | } | |
481 | ||
482 | /* | |
483 | * If "delete logical drive" feature is enabled on this controller. | |
484 | * Do only if at least one delete logical drive operation was done. | |
485 | * | |
486 | * Also, after logical drive deletion, instead of logical drive number, | |
487 | * the value returned should be 0x80+logical drive id. | |
488 | * | |
489 | * These is valid only for IO commands. | |
490 | */ | |
491 | ||
492 | if (adapter->support_random_del && adapter->read_ldidmap ) | |
493 | switch (cmd->cmnd[0]) { | |
494 | case READ_6: /* fall through */ | |
495 | case WRITE_6: /* fall through */ | |
496 | case READ_10: /* fall through */ | |
497 | case WRITE_10: | |
498 | ldrv_num += 0x80; | |
499 | } | |
500 | ||
501 | return ldrv_num; | |
502 | } | |
503 | ||
504 | /** | |
505 | * mega_build_cmd() | |
506 | * @adapter - pointer to our soft state | |
507 | * @cmd - Prepare using this scsi command | |
508 | * @busy - busy flag if no resources | |
509 | * | |
510 | * Prepares a command and scatter gather list for the controller. This routine | |
511 | * also finds out if the commands is intended for a logical drive or a | |
512 | * physical device and prepares the controller command accordingly. | |
513 | * | |
514 | * We also re-order the logical drives and physical devices based on their | |
515 | * boot settings. | |
516 | */ | |
517 | static scb_t * | |
91ebc1fa | 518 | mega_build_cmd(adapter_t *adapter, struct scsi_cmnd *cmd, int *busy) |
1da177e4 LT |
519 | { |
520 | mega_ext_passthru *epthru; | |
521 | mega_passthru *pthru; | |
522 | scb_t *scb; | |
523 | mbox_t *mbox; | |
9d5d93e3 | 524 | u32 seg; |
1da177e4 LT |
525 | char islogical; |
526 | int max_ldrv_num; | |
527 | int channel = 0; | |
528 | int target = 0; | |
529 | int ldrv_num = 0; /* logical drive number */ | |
530 | ||
1da177e4 LT |
531 | /* |
532 | * We know what channels our logical drives are on - mega_find_card() | |
533 | */ | |
534 | islogical = adapter->logdrv_chan[cmd->device->channel]; | |
535 | ||
536 | /* | |
537 | * The theory: If physical drive is chosen for boot, all the physical | |
538 | * devices are exported before the logical drives, otherwise physical | |
539 | * devices are pushed after logical drives, in which case - Kernel sees | |
540 | * the physical devices on virtual channel which is obviously converted | |
541 | * to actual channel on the HBA. | |
542 | */ | |
543 | if( adapter->boot_pdrv_enabled ) { | |
544 | if( islogical ) { | |
545 | /* logical channel */ | |
546 | channel = cmd->device->channel - | |
547 | adapter->product_info.nchannels; | |
548 | } | |
549 | else { | |
550 | /* this is physical channel */ | |
551 | channel = cmd->device->channel; | |
552 | target = cmd->device->id; | |
553 | ||
554 | /* | |
555 | * boot from a physical disk, that disk needs to be | |
556 | * exposed first IF both the channels are SCSI, then | |
557 | * booting from the second channel is not allowed. | |
558 | */ | |
559 | if( target == 0 ) { | |
560 | target = adapter->boot_pdrv_tgt; | |
561 | } | |
562 | else if( target == adapter->boot_pdrv_tgt ) { | |
563 | target = 0; | |
564 | } | |
565 | } | |
566 | } | |
567 | else { | |
568 | if( islogical ) { | |
569 | /* this is the logical channel */ | |
570 | channel = cmd->device->channel; | |
571 | } | |
572 | else { | |
573 | /* physical channel */ | |
574 | channel = cmd->device->channel - NVIRT_CHAN; | |
575 | target = cmd->device->id; | |
576 | } | |
577 | } | |
578 | ||
579 | ||
580 | if(islogical) { | |
581 | ||
582 | /* have just LUN 0 for each target on virtual channels */ | |
583 | if (cmd->device->lun) { | |
584 | cmd->result = (DID_BAD_TARGET << 16); | |
585 | cmd->scsi_done(cmd); | |
586 | return NULL; | |
587 | } | |
588 | ||
589 | ldrv_num = mega_get_ldrv_num(adapter, cmd, channel); | |
590 | ||
591 | ||
592 | max_ldrv_num = (adapter->flag & BOARD_40LD) ? | |
593 | MAX_LOGICAL_DRIVES_40LD : MAX_LOGICAL_DRIVES_8LD; | |
594 | ||
595 | /* | |
596 | * max_ldrv_num increases by 0x80 if some logical drive was | |
597 | * deleted. | |
598 | */ | |
599 | if(adapter->read_ldidmap) | |
600 | max_ldrv_num += 0x80; | |
601 | ||
602 | if(ldrv_num > max_ldrv_num ) { | |
603 | cmd->result = (DID_BAD_TARGET << 16); | |
604 | cmd->scsi_done(cmd); | |
605 | return NULL; | |
606 | } | |
607 | ||
608 | } | |
609 | else { | |
610 | if( cmd->device->lun > 7) { | |
611 | /* | |
612 | * Do not support lun >7 for physically accessed | |
613 | * devices | |
614 | */ | |
615 | cmd->result = (DID_BAD_TARGET << 16); | |
616 | cmd->scsi_done(cmd); | |
617 | return NULL; | |
618 | } | |
619 | } | |
620 | ||
621 | /* | |
622 | * | |
623 | * Logical drive commands | |
624 | * | |
625 | */ | |
626 | if(islogical) { | |
627 | switch (cmd->cmnd[0]) { | |
628 | case TEST_UNIT_READY: | |
1da177e4 LT |
629 | #if MEGA_HAVE_CLUSTERING |
630 | /* | |
631 | * Do we support clustering and is the support enabled | |
632 | * If no, return success always | |
633 | */ | |
634 | if( !adapter->has_cluster ) { | |
635 | cmd->result = (DID_OK << 16); | |
636 | cmd->scsi_done(cmd); | |
637 | return NULL; | |
638 | } | |
639 | ||
640 | if(!(scb = mega_allocate_scb(adapter, cmd))) { | |
641 | *busy = 1; | |
642 | return NULL; | |
643 | } | |
644 | ||
645 | scb->raw_mbox[0] = MEGA_CLUSTER_CMD; | |
646 | scb->raw_mbox[2] = MEGA_RESERVATION_STATUS; | |
647 | scb->raw_mbox[3] = ldrv_num; | |
648 | ||
649 | scb->dma_direction = PCI_DMA_NONE; | |
650 | ||
651 | return scb; | |
652 | #else | |
653 | cmd->result = (DID_OK << 16); | |
654 | cmd->scsi_done(cmd); | |
655 | return NULL; | |
656 | #endif | |
657 | ||
51c928c3 JB |
658 | case MODE_SENSE: { |
659 | char *buf; | |
3f6270ef | 660 | struct scatterlist *sg; |
51c928c3 | 661 | |
3f6270ef | 662 | sg = scsi_sglist(cmd); |
77dfce07 | 663 | buf = kmap_atomic(sg_page(sg)) + sg->offset; |
51c928c3 | 664 | |
f0353301 | 665 | memset(buf, 0, cmd->cmnd[4]); |
77dfce07 | 666 | kunmap_atomic(buf - sg->offset); |
51c928c3 | 667 | |
1da177e4 LT |
668 | cmd->result = (DID_OK << 16); |
669 | cmd->scsi_done(cmd); | |
670 | return NULL; | |
51c928c3 | 671 | } |
1da177e4 LT |
672 | |
673 | case READ_CAPACITY: | |
674 | case INQUIRY: | |
675 | ||
676 | if(!(adapter->flag & (1L << cmd->device->channel))) { | |
677 | ||
3b8a1ba3 BH |
678 | dev_notice(&adapter->dev->dev, |
679 | "scsi%d: scanning scsi channel %d " | |
680 | "for logical drives\n", | |
1da177e4 LT |
681 | adapter->host->host_no, |
682 | cmd->device->channel); | |
1da177e4 LT |
683 | |
684 | adapter->flag |= (1L << cmd->device->channel); | |
685 | } | |
686 | ||
687 | /* Allocate a SCB and initialize passthru */ | |
688 | if(!(scb = mega_allocate_scb(adapter, cmd))) { | |
689 | *busy = 1; | |
690 | return NULL; | |
691 | } | |
692 | pthru = scb->pthru; | |
693 | ||
694 | mbox = (mbox_t *)scb->raw_mbox; | |
695 | memset(mbox, 0, sizeof(scb->raw_mbox)); | |
696 | memset(pthru, 0, sizeof(mega_passthru)); | |
697 | ||
698 | pthru->timeout = 0; | |
699 | pthru->ars = 1; | |
700 | pthru->reqsenselen = 14; | |
701 | pthru->islogical = 1; | |
702 | pthru->logdrv = ldrv_num; | |
703 | pthru->cdblen = cmd->cmd_len; | |
704 | memcpy(pthru->cdb, cmd->cmnd, cmd->cmd_len); | |
705 | ||
706 | if( adapter->has_64bit_addr ) { | |
707 | mbox->m_out.cmd = MEGA_MBOXCMD_PASSTHRU64; | |
708 | } | |
709 | else { | |
710 | mbox->m_out.cmd = MEGA_MBOXCMD_PASSTHRU; | |
711 | } | |
712 | ||
713 | scb->dma_direction = PCI_DMA_FROMDEVICE; | |
714 | ||
715 | pthru->numsgelements = mega_build_sglist(adapter, scb, | |
716 | &pthru->dataxferaddr, &pthru->dataxferlen); | |
717 | ||
718 | mbox->m_out.xferaddr = scb->pthru_dma_addr; | |
719 | ||
720 | return scb; | |
721 | ||
722 | case READ_6: | |
723 | case WRITE_6: | |
724 | case READ_10: | |
725 | case WRITE_10: | |
726 | case READ_12: | |
727 | case WRITE_12: | |
728 | ||
729 | /* Allocate a SCB and initialize mailbox */ | |
730 | if(!(scb = mega_allocate_scb(adapter, cmd))) { | |
731 | *busy = 1; | |
732 | return NULL; | |
733 | } | |
734 | mbox = (mbox_t *)scb->raw_mbox; | |
735 | ||
736 | memset(mbox, 0, sizeof(scb->raw_mbox)); | |
737 | mbox->m_out.logdrv = ldrv_num; | |
738 | ||
739 | /* | |
740 | * A little hack: 2nd bit is zero for all scsi read | |
741 | * commands and is set for all scsi write commands | |
742 | */ | |
743 | if( adapter->has_64bit_addr ) { | |
744 | mbox->m_out.cmd = (*cmd->cmnd & 0x02) ? | |
745 | MEGA_MBOXCMD_LWRITE64: | |
746 | MEGA_MBOXCMD_LREAD64 ; | |
747 | } | |
748 | else { | |
749 | mbox->m_out.cmd = (*cmd->cmnd & 0x02) ? | |
750 | MEGA_MBOXCMD_LWRITE: | |
751 | MEGA_MBOXCMD_LREAD ; | |
752 | } | |
753 | ||
754 | /* | |
755 | * 6-byte READ(0x08) or WRITE(0x0A) cdb | |
756 | */ | |
757 | if( cmd->cmd_len == 6 ) { | |
758 | mbox->m_out.numsectors = (u32) cmd->cmnd[4]; | |
759 | mbox->m_out.lba = | |
760 | ((u32)cmd->cmnd[1] << 16) | | |
761 | ((u32)cmd->cmnd[2] << 8) | | |
762 | (u32)cmd->cmnd[3]; | |
763 | ||
764 | mbox->m_out.lba &= 0x1FFFFF; | |
765 | ||
766 | #if MEGA_HAVE_STATS | |
767 | /* | |
768 | * Take modulo 0x80, since the logical drive | |
769 | * number increases by 0x80 when a logical | |
770 | * drive was deleted | |
771 | */ | |
772 | if (*cmd->cmnd == READ_6) { | |
773 | adapter->nreads[ldrv_num%0x80]++; | |
774 | adapter->nreadblocks[ldrv_num%0x80] += | |
775 | mbox->m_out.numsectors; | |
776 | } else { | |
777 | adapter->nwrites[ldrv_num%0x80]++; | |
778 | adapter->nwriteblocks[ldrv_num%0x80] += | |
779 | mbox->m_out.numsectors; | |
780 | } | |
781 | #endif | |
782 | } | |
783 | ||
784 | /* | |
785 | * 10-byte READ(0x28) or WRITE(0x2A) cdb | |
786 | */ | |
787 | if( cmd->cmd_len == 10 ) { | |
788 | mbox->m_out.numsectors = | |
789 | (u32)cmd->cmnd[8] | | |
790 | ((u32)cmd->cmnd[7] << 8); | |
791 | mbox->m_out.lba = | |
792 | ((u32)cmd->cmnd[2] << 24) | | |
793 | ((u32)cmd->cmnd[3] << 16) | | |
794 | ((u32)cmd->cmnd[4] << 8) | | |
795 | (u32)cmd->cmnd[5]; | |
796 | ||
797 | #if MEGA_HAVE_STATS | |
798 | if (*cmd->cmnd == READ_10) { | |
799 | adapter->nreads[ldrv_num%0x80]++; | |
800 | adapter->nreadblocks[ldrv_num%0x80] += | |
801 | mbox->m_out.numsectors; | |
802 | } else { | |
803 | adapter->nwrites[ldrv_num%0x80]++; | |
804 | adapter->nwriteblocks[ldrv_num%0x80] += | |
805 | mbox->m_out.numsectors; | |
806 | } | |
807 | #endif | |
808 | } | |
809 | ||
810 | /* | |
811 | * 12-byte READ(0xA8) or WRITE(0xAA) cdb | |
812 | */ | |
813 | if( cmd->cmd_len == 12 ) { | |
814 | mbox->m_out.lba = | |
815 | ((u32)cmd->cmnd[2] << 24) | | |
816 | ((u32)cmd->cmnd[3] << 16) | | |
817 | ((u32)cmd->cmnd[4] << 8) | | |
818 | (u32)cmd->cmnd[5]; | |
819 | ||
820 | mbox->m_out.numsectors = | |
821 | ((u32)cmd->cmnd[6] << 24) | | |
822 | ((u32)cmd->cmnd[7] << 16) | | |
823 | ((u32)cmd->cmnd[8] << 8) | | |
824 | (u32)cmd->cmnd[9]; | |
825 | ||
826 | #if MEGA_HAVE_STATS | |
827 | if (*cmd->cmnd == READ_12) { | |
828 | adapter->nreads[ldrv_num%0x80]++; | |
829 | adapter->nreadblocks[ldrv_num%0x80] += | |
830 | mbox->m_out.numsectors; | |
831 | } else { | |
832 | adapter->nwrites[ldrv_num%0x80]++; | |
833 | adapter->nwriteblocks[ldrv_num%0x80] += | |
834 | mbox->m_out.numsectors; | |
835 | } | |
836 | #endif | |
837 | } | |
838 | ||
839 | /* | |
840 | * If it is a read command | |
841 | */ | |
842 | if( (*cmd->cmnd & 0x0F) == 0x08 ) { | |
843 | scb->dma_direction = PCI_DMA_FROMDEVICE; | |
844 | } | |
845 | else { | |
846 | scb->dma_direction = PCI_DMA_TODEVICE; | |
847 | } | |
848 | ||
849 | /* Calculate Scatter-Gather info */ | |
850 | mbox->m_out.numsgelements = mega_build_sglist(adapter, scb, | |
9d5d93e3 | 851 | (u32 *)&mbox->m_out.xferaddr, &seg); |
1da177e4 LT |
852 | |
853 | return scb; | |
854 | ||
855 | #if MEGA_HAVE_CLUSTERING | |
856 | case RESERVE: /* Fall through */ | |
857 | case RELEASE: | |
858 | ||
859 | /* | |
860 | * Do we support clustering and is the support enabled | |
861 | */ | |
862 | if( ! adapter->has_cluster ) { | |
863 | ||
864 | cmd->result = (DID_BAD_TARGET << 16); | |
865 | cmd->scsi_done(cmd); | |
866 | return NULL; | |
867 | } | |
868 | ||
869 | /* Allocate a SCB and initialize mailbox */ | |
870 | if(!(scb = mega_allocate_scb(adapter, cmd))) { | |
871 | *busy = 1; | |
872 | return NULL; | |
873 | } | |
874 | ||
875 | scb->raw_mbox[0] = MEGA_CLUSTER_CMD; | |
876 | scb->raw_mbox[2] = ( *cmd->cmnd == RESERVE ) ? | |
877 | MEGA_RESERVE_LD : MEGA_RELEASE_LD; | |
878 | ||
879 | scb->raw_mbox[3] = ldrv_num; | |
880 | ||
881 | scb->dma_direction = PCI_DMA_NONE; | |
882 | ||
883 | return scb; | |
884 | #endif | |
885 | ||
886 | default: | |
887 | cmd->result = (DID_BAD_TARGET << 16); | |
888 | cmd->scsi_done(cmd); | |
889 | return NULL; | |
890 | } | |
891 | } | |
892 | ||
893 | /* | |
894 | * Passthru drive commands | |
895 | */ | |
896 | else { | |
897 | /* Allocate a SCB and initialize passthru */ | |
898 | if(!(scb = mega_allocate_scb(adapter, cmd))) { | |
899 | *busy = 1; | |
900 | return NULL; | |
901 | } | |
902 | ||
903 | mbox = (mbox_t *)scb->raw_mbox; | |
904 | memset(mbox, 0, sizeof(scb->raw_mbox)); | |
905 | ||
906 | if( adapter->support_ext_cdb ) { | |
907 | ||
908 | epthru = mega_prepare_extpassthru(adapter, scb, cmd, | |
909 | channel, target); | |
910 | ||
911 | mbox->m_out.cmd = MEGA_MBOXCMD_EXTPTHRU; | |
912 | ||
913 | mbox->m_out.xferaddr = scb->epthru_dma_addr; | |
914 | ||
915 | } | |
916 | else { | |
917 | ||
918 | pthru = mega_prepare_passthru(adapter, scb, cmd, | |
919 | channel, target); | |
920 | ||
921 | /* Initialize mailbox */ | |
922 | if( adapter->has_64bit_addr ) { | |
923 | mbox->m_out.cmd = MEGA_MBOXCMD_PASSTHRU64; | |
924 | } | |
925 | else { | |
926 | mbox->m_out.cmd = MEGA_MBOXCMD_PASSTHRU; | |
927 | } | |
928 | ||
929 | mbox->m_out.xferaddr = scb->pthru_dma_addr; | |
930 | ||
931 | } | |
932 | return scb; | |
933 | } | |
934 | return NULL; | |
935 | } | |
936 | ||
937 | ||
938 | /** | |
939 | * mega_prepare_passthru() | |
940 | * @adapter - pointer to our soft state | |
941 | * @scb - our scsi control block | |
942 | * @cmd - scsi command from the mid-layer | |
943 | * @channel - actual channel on the controller | |
944 | * @target - actual id on the controller. | |
945 | * | |
946 | * prepare a command for the scsi physical devices. | |
947 | */ | |
948 | static mega_passthru * | |
91ebc1fa JT |
949 | mega_prepare_passthru(adapter_t *adapter, scb_t *scb, struct scsi_cmnd *cmd, |
950 | int channel, int target) | |
1da177e4 LT |
951 | { |
952 | mega_passthru *pthru; | |
953 | ||
954 | pthru = scb->pthru; | |
955 | memset(pthru, 0, sizeof (mega_passthru)); | |
956 | ||
957 | /* 0=6sec/1=60sec/2=10min/3=3hrs */ | |
958 | pthru->timeout = 2; | |
959 | ||
960 | pthru->ars = 1; | |
961 | pthru->reqsenselen = 14; | |
962 | pthru->islogical = 0; | |
963 | ||
964 | pthru->channel = (adapter->flag & BOARD_40LD) ? 0 : channel; | |
965 | ||
966 | pthru->target = (adapter->flag & BOARD_40LD) ? | |
967 | (channel << 4) | target : target; | |
968 | ||
969 | pthru->cdblen = cmd->cmd_len; | |
970 | pthru->logdrv = cmd->device->lun; | |
971 | ||
972 | memcpy(pthru->cdb, cmd->cmnd, cmd->cmd_len); | |
973 | ||
974 | /* Not sure about the direction */ | |
975 | scb->dma_direction = PCI_DMA_BIDIRECTIONAL; | |
976 | ||
977 | /* Special Code for Handling READ_CAPA/ INQ using bounce buffers */ | |
978 | switch (cmd->cmnd[0]) { | |
979 | case INQUIRY: | |
980 | case READ_CAPACITY: | |
981 | if(!(adapter->flag & (1L << cmd->device->channel))) { | |
982 | ||
3b8a1ba3 BH |
983 | dev_notice(&adapter->dev->dev, |
984 | "scsi%d: scanning scsi channel %d [P%d] " | |
985 | "for physical devices\n", | |
1da177e4 LT |
986 | adapter->host->host_no, |
987 | cmd->device->channel, channel); | |
1da177e4 LT |
988 | |
989 | adapter->flag |= (1L << cmd->device->channel); | |
990 | } | |
991 | /* Fall through */ | |
992 | default: | |
993 | pthru->numsgelements = mega_build_sglist(adapter, scb, | |
994 | &pthru->dataxferaddr, &pthru->dataxferlen); | |
995 | break; | |
996 | } | |
997 | return pthru; | |
998 | } | |
999 | ||
1000 | ||
1001 | /** | |
1002 | * mega_prepare_extpassthru() | |
1003 | * @adapter - pointer to our soft state | |
1004 | * @scb - our scsi control block | |
1005 | * @cmd - scsi command from the mid-layer | |
1006 | * @channel - actual channel on the controller | |
1007 | * @target - actual id on the controller. | |
1008 | * | |
1009 | * prepare a command for the scsi physical devices. This rountine prepares | |
1010 | * commands for devices which can take extended CDBs (>10 bytes) | |
1011 | */ | |
1012 | static mega_ext_passthru * | |
91ebc1fa JT |
1013 | mega_prepare_extpassthru(adapter_t *adapter, scb_t *scb, |
1014 | struct scsi_cmnd *cmd, | |
1015 | int channel, int target) | |
1da177e4 LT |
1016 | { |
1017 | mega_ext_passthru *epthru; | |
1018 | ||
1019 | epthru = scb->epthru; | |
1020 | memset(epthru, 0, sizeof(mega_ext_passthru)); | |
1021 | ||
1022 | /* 0=6sec/1=60sec/2=10min/3=3hrs */ | |
1023 | epthru->timeout = 2; | |
1024 | ||
1025 | epthru->ars = 1; | |
1026 | epthru->reqsenselen = 14; | |
1027 | epthru->islogical = 0; | |
1028 | ||
1029 | epthru->channel = (adapter->flag & BOARD_40LD) ? 0 : channel; | |
1030 | epthru->target = (adapter->flag & BOARD_40LD) ? | |
1031 | (channel << 4) | target : target; | |
1032 | ||
1033 | epthru->cdblen = cmd->cmd_len; | |
1034 | epthru->logdrv = cmd->device->lun; | |
1035 | ||
1036 | memcpy(epthru->cdb, cmd->cmnd, cmd->cmd_len); | |
1037 | ||
1038 | /* Not sure about the direction */ | |
1039 | scb->dma_direction = PCI_DMA_BIDIRECTIONAL; | |
1040 | ||
1041 | switch(cmd->cmnd[0]) { | |
1042 | case INQUIRY: | |
1043 | case READ_CAPACITY: | |
1044 | if(!(adapter->flag & (1L << cmd->device->channel))) { | |
1045 | ||
3b8a1ba3 BH |
1046 | dev_notice(&adapter->dev->dev, |
1047 | "scsi%d: scanning scsi channel %d [P%d] " | |
1048 | "for physical devices\n", | |
1da177e4 LT |
1049 | adapter->host->host_no, |
1050 | cmd->device->channel, channel); | |
1da177e4 LT |
1051 | |
1052 | adapter->flag |= (1L << cmd->device->channel); | |
1053 | } | |
1054 | /* Fall through */ | |
1055 | default: | |
1056 | epthru->numsgelements = mega_build_sglist(adapter, scb, | |
1057 | &epthru->dataxferaddr, &epthru->dataxferlen); | |
1058 | break; | |
1059 | } | |
1060 | ||
1061 | return epthru; | |
1062 | } | |
1063 | ||
1064 | static void | |
1065 | __mega_runpendq(adapter_t *adapter) | |
1066 | { | |
1067 | scb_t *scb; | |
1068 | struct list_head *pos, *next; | |
1069 | ||
1070 | /* Issue any pending commands to the card */ | |
1071 | list_for_each_safe(pos, next, &adapter->pending_list) { | |
1072 | ||
1073 | scb = list_entry(pos, scb_t, list); | |
1074 | ||
1075 | if( !(scb->state & SCB_ISSUED) ) { | |
1076 | ||
1077 | if( issue_scb(adapter, scb) != 0 ) | |
1078 | return; | |
1079 | } | |
1080 | } | |
1081 | ||
1082 | return; | |
1083 | } | |
1084 | ||
1085 | ||
1086 | /** | |
1087 | * issue_scb() | |
1088 | * @adapter - pointer to our soft state | |
1089 | * @scb - scsi control block | |
1090 | * | |
1091 | * Post a command to the card if the mailbox is available, otherwise return | |
1092 | * busy. We also take the scb from the pending list if the mailbox is | |
1093 | * available. | |
1094 | */ | |
1095 | static int | |
1096 | issue_scb(adapter_t *adapter, scb_t *scb) | |
1097 | { | |
1098 | volatile mbox64_t *mbox64 = adapter->mbox64; | |
1099 | volatile mbox_t *mbox = adapter->mbox; | |
1100 | unsigned int i = 0; | |
1101 | ||
1102 | if(unlikely(mbox->m_in.busy)) { | |
1103 | do { | |
1104 | udelay(1); | |
1105 | i++; | |
1106 | } while( mbox->m_in.busy && (i < max_mbox_busy_wait) ); | |
1107 | ||
1108 | if(mbox->m_in.busy) return -1; | |
1109 | } | |
1110 | ||
1111 | /* Copy mailbox data into host structure */ | |
1112 | memcpy((char *)&mbox->m_out, (char *)scb->raw_mbox, | |
1113 | sizeof(struct mbox_out)); | |
1114 | ||
1115 | mbox->m_out.cmdid = scb->idx; /* Set cmdid */ | |
1116 | mbox->m_in.busy = 1; /* Set busy */ | |
1117 | ||
1118 | ||
1119 | /* | |
1120 | * Increment the pending queue counter | |
1121 | */ | |
1122 | atomic_inc(&adapter->pend_cmds); | |
1123 | ||
1124 | switch (mbox->m_out.cmd) { | |
1125 | case MEGA_MBOXCMD_LREAD64: | |
1126 | case MEGA_MBOXCMD_LWRITE64: | |
1127 | case MEGA_MBOXCMD_PASSTHRU64: | |
1128 | case MEGA_MBOXCMD_EXTPTHRU: | |
1129 | mbox64->xfer_segment_lo = mbox->m_out.xferaddr; | |
1130 | mbox64->xfer_segment_hi = 0; | |
1131 | mbox->m_out.xferaddr = 0xFFFFFFFF; | |
1132 | break; | |
1133 | default: | |
1134 | mbox64->xfer_segment_lo = 0; | |
1135 | mbox64->xfer_segment_hi = 0; | |
1136 | } | |
1137 | ||
1138 | /* | |
1139 | * post the command | |
1140 | */ | |
1141 | scb->state |= SCB_ISSUED; | |
1142 | ||
1143 | if( likely(adapter->flag & BOARD_MEMMAP) ) { | |
1144 | mbox->m_in.poll = 0; | |
1145 | mbox->m_in.ack = 0; | |
1146 | WRINDOOR(adapter, adapter->mbox_dma | 0x1); | |
1147 | } | |
1148 | else { | |
1149 | irq_enable(adapter); | |
1150 | issue_command(adapter); | |
1151 | } | |
1152 | ||
1153 | return 0; | |
1154 | } | |
1155 | ||
1156 | /* | |
1157 | * Wait until the controller's mailbox is available | |
1158 | */ | |
1159 | static inline int | |
1160 | mega_busywait_mbox (adapter_t *adapter) | |
1161 | { | |
1162 | if (adapter->mbox->m_in.busy) | |
1163 | return __mega_busywait_mbox(adapter); | |
1164 | return 0; | |
1165 | } | |
1166 | ||
1167 | /** | |
1168 | * issue_scb_block() | |
1169 | * @adapter - pointer to our soft state | |
1170 | * @raw_mbox - the mailbox | |
1171 | * | |
1172 | * Issue a scb in synchronous and non-interrupt mode | |
1173 | */ | |
1174 | static int | |
1175 | issue_scb_block(adapter_t *adapter, u_char *raw_mbox) | |
1176 | { | |
1177 | volatile mbox64_t *mbox64 = adapter->mbox64; | |
1178 | volatile mbox_t *mbox = adapter->mbox; | |
1179 | u8 byte; | |
1180 | ||
1181 | /* Wait until mailbox is free */ | |
1182 | if(mega_busywait_mbox (adapter)) | |
1183 | goto bug_blocked_mailbox; | |
1184 | ||
1185 | /* Copy mailbox data into host structure */ | |
1186 | memcpy((char *) mbox, raw_mbox, sizeof(struct mbox_out)); | |
1187 | mbox->m_out.cmdid = 0xFE; | |
1188 | mbox->m_in.busy = 1; | |
1189 | ||
1190 | switch (raw_mbox[0]) { | |
1191 | case MEGA_MBOXCMD_LREAD64: | |
1192 | case MEGA_MBOXCMD_LWRITE64: | |
1193 | case MEGA_MBOXCMD_PASSTHRU64: | |
1194 | case MEGA_MBOXCMD_EXTPTHRU: | |
1195 | mbox64->xfer_segment_lo = mbox->m_out.xferaddr; | |
1196 | mbox64->xfer_segment_hi = 0; | |
1197 | mbox->m_out.xferaddr = 0xFFFFFFFF; | |
1198 | break; | |
1199 | default: | |
1200 | mbox64->xfer_segment_lo = 0; | |
1201 | mbox64->xfer_segment_hi = 0; | |
1202 | } | |
1203 | ||
1204 | if( likely(adapter->flag & BOARD_MEMMAP) ) { | |
1205 | mbox->m_in.poll = 0; | |
1206 | mbox->m_in.ack = 0; | |
1207 | mbox->m_in.numstatus = 0xFF; | |
1208 | mbox->m_in.status = 0xFF; | |
1209 | WRINDOOR(adapter, adapter->mbox_dma | 0x1); | |
1210 | ||
1211 | while((volatile u8)mbox->m_in.numstatus == 0xFF) | |
1212 | cpu_relax(); | |
1213 | ||
1214 | mbox->m_in.numstatus = 0xFF; | |
1215 | ||
1216 | while( (volatile u8)mbox->m_in.poll != 0x77 ) | |
1217 | cpu_relax(); | |
1218 | ||
1219 | mbox->m_in.poll = 0; | |
1220 | mbox->m_in.ack = 0x77; | |
1221 | ||
1222 | WRINDOOR(adapter, adapter->mbox_dma | 0x2); | |
1223 | ||
1224 | while(RDINDOOR(adapter) & 0x2) | |
1225 | cpu_relax(); | |
1226 | } | |
1227 | else { | |
1228 | irq_disable(adapter); | |
1229 | issue_command(adapter); | |
1230 | ||
1231 | while (!((byte = irq_state(adapter)) & INTR_VALID)) | |
1232 | cpu_relax(); | |
1233 | ||
1234 | set_irq_state(adapter, byte); | |
1235 | irq_enable(adapter); | |
1236 | irq_ack(adapter); | |
1237 | } | |
1238 | ||
1239 | return mbox->m_in.status; | |
1240 | ||
1241 | bug_blocked_mailbox: | |
3b8a1ba3 | 1242 | dev_warn(&adapter->dev->dev, "Blocked mailbox......!!\n"); |
1da177e4 LT |
1243 | udelay (1000); |
1244 | return -1; | |
1245 | } | |
1246 | ||
1247 | ||
1248 | /** | |
1249 | * megaraid_isr_iomapped() | |
1250 | * @irq - irq | |
1251 | * @devp - pointer to our soft state | |
1da177e4 LT |
1252 | * |
1253 | * Interrupt service routine for io-mapped controllers. | |
1254 | * Find out if our device is interrupting. If yes, acknowledge the interrupt | |
1255 | * and service the completed commands. | |
1256 | */ | |
1257 | static irqreturn_t | |
7d12e780 | 1258 | megaraid_isr_iomapped(int irq, void *devp) |
1da177e4 LT |
1259 | { |
1260 | adapter_t *adapter = devp; | |
1261 | unsigned long flags; | |
1262 | u8 status; | |
1263 | u8 nstatus; | |
1264 | u8 completed[MAX_FIRMWARE_STATUS]; | |
1265 | u8 byte; | |
1266 | int handled = 0; | |
1267 | ||
1268 | ||
1269 | /* | |
1270 | * loop till F/W has more commands for us to complete. | |
1271 | */ | |
1272 | spin_lock_irqsave(&adapter->lock, flags); | |
1273 | ||
1274 | do { | |
1275 | /* Check if a valid interrupt is pending */ | |
1276 | byte = irq_state(adapter); | |
1277 | if( (byte & VALID_INTR_BYTE) == 0 ) { | |
1278 | /* | |
1279 | * No more pending commands | |
1280 | */ | |
1281 | goto out_unlock; | |
1282 | } | |
1283 | set_irq_state(adapter, byte); | |
1284 | ||
1285 | while((nstatus = (volatile u8)adapter->mbox->m_in.numstatus) | |
1286 | == 0xFF) | |
1287 | cpu_relax(); | |
1288 | adapter->mbox->m_in.numstatus = 0xFF; | |
1289 | ||
1290 | status = adapter->mbox->m_in.status; | |
1291 | ||
1292 | /* | |
1293 | * decrement the pending queue counter | |
1294 | */ | |
1295 | atomic_sub(nstatus, &adapter->pend_cmds); | |
1296 | ||
1297 | memcpy(completed, (void *)adapter->mbox->m_in.completed, | |
1298 | nstatus); | |
1299 | ||
1300 | /* Acknowledge interrupt */ | |
1301 | irq_ack(adapter); | |
1302 | ||
1303 | mega_cmd_done(adapter, completed, nstatus, status); | |
1304 | ||
1305 | mega_rundoneq(adapter); | |
1306 | ||
1307 | handled = 1; | |
1308 | ||
1309 | /* Loop through any pending requests */ | |
1310 | if(atomic_read(&adapter->quiescent) == 0) { | |
1311 | mega_runpendq(adapter); | |
1312 | } | |
1313 | ||
1314 | } while(1); | |
1315 | ||
1316 | out_unlock: | |
1317 | ||
1318 | spin_unlock_irqrestore(&adapter->lock, flags); | |
1319 | ||
1320 | return IRQ_RETVAL(handled); | |
1321 | } | |
1322 | ||
1323 | ||
1324 | /** | |
1325 | * megaraid_isr_memmapped() | |
1326 | * @irq - irq | |
1327 | * @devp - pointer to our soft state | |
1da177e4 LT |
1328 | * |
1329 | * Interrupt service routine for memory-mapped controllers. | |
1330 | * Find out if our device is interrupting. If yes, acknowledge the interrupt | |
1331 | * and service the completed commands. | |
1332 | */ | |
1333 | static irqreturn_t | |
7d12e780 | 1334 | megaraid_isr_memmapped(int irq, void *devp) |
1da177e4 LT |
1335 | { |
1336 | adapter_t *adapter = devp; | |
1337 | unsigned long flags; | |
1338 | u8 status; | |
1339 | u32 dword = 0; | |
1340 | u8 nstatus; | |
1341 | u8 completed[MAX_FIRMWARE_STATUS]; | |
1342 | int handled = 0; | |
1343 | ||
1344 | ||
1345 | /* | |
1346 | * loop till F/W has more commands for us to complete. | |
1347 | */ | |
1348 | spin_lock_irqsave(&adapter->lock, flags); | |
1349 | ||
1350 | do { | |
1351 | /* Check if a valid interrupt is pending */ | |
1352 | dword = RDOUTDOOR(adapter); | |
1353 | if(dword != 0x10001234) { | |
1354 | /* | |
1355 | * No more pending commands | |
1356 | */ | |
1357 | goto out_unlock; | |
1358 | } | |
1359 | WROUTDOOR(adapter, 0x10001234); | |
1360 | ||
1361 | while((nstatus = (volatile u8)adapter->mbox->m_in.numstatus) | |
1362 | == 0xFF) { | |
1363 | cpu_relax(); | |
1364 | } | |
1365 | adapter->mbox->m_in.numstatus = 0xFF; | |
1366 | ||
1367 | status = adapter->mbox->m_in.status; | |
1368 | ||
1369 | /* | |
1370 | * decrement the pending queue counter | |
1371 | */ | |
1372 | atomic_sub(nstatus, &adapter->pend_cmds); | |
1373 | ||
1374 | memcpy(completed, (void *)adapter->mbox->m_in.completed, | |
1375 | nstatus); | |
1376 | ||
1377 | /* Acknowledge interrupt */ | |
1378 | WRINDOOR(adapter, 0x2); | |
1379 | ||
1380 | handled = 1; | |
1381 | ||
00769ec4 JG |
1382 | while( RDINDOOR(adapter) & 0x02 ) |
1383 | cpu_relax(); | |
1da177e4 LT |
1384 | |
1385 | mega_cmd_done(adapter, completed, nstatus, status); | |
1386 | ||
1387 | mega_rundoneq(adapter); | |
1388 | ||
1389 | /* Loop through any pending requests */ | |
1390 | if(atomic_read(&adapter->quiescent) == 0) { | |
1391 | mega_runpendq(adapter); | |
1392 | } | |
1393 | ||
1394 | } while(1); | |
1395 | ||
1396 | out_unlock: | |
1397 | ||
1398 | spin_unlock_irqrestore(&adapter->lock, flags); | |
1399 | ||
1400 | return IRQ_RETVAL(handled); | |
1401 | } | |
1402 | /** | |
1403 | * mega_cmd_done() | |
1404 | * @adapter - pointer to our soft state | |
1405 | * @completed - array of ids of completed commands | |
1406 | * @nstatus - number of completed commands | |
1407 | * @status - status of the last command completed | |
1408 | * | |
8e572bab | 1409 | * Complete the commands and call the scsi mid-layer callback hooks. |
1da177e4 LT |
1410 | */ |
1411 | static void | |
1412 | mega_cmd_done(adapter_t *adapter, u8 completed[], int nstatus, int status) | |
1413 | { | |
1414 | mega_ext_passthru *epthru = NULL; | |
1415 | struct scatterlist *sgl; | |
91ebc1fa | 1416 | struct scsi_cmnd *cmd = NULL; |
1da177e4 LT |
1417 | mega_passthru *pthru = NULL; |
1418 | mbox_t *mbox = NULL; | |
1419 | u8 c; | |
1420 | scb_t *scb; | |
1421 | int islogical; | |
1422 | int cmdid; | |
1423 | int i; | |
1424 | ||
1425 | /* | |
1426 | * for all the commands completed, call the mid-layer callback routine | |
1427 | * and free the scb. | |
1428 | */ | |
1429 | for( i = 0; i < nstatus; i++ ) { | |
1430 | ||
1431 | cmdid = completed[i]; | |
1432 | ||
0f2bb84d CH |
1433 | /* |
1434 | * Only free SCBs for the commands coming down from the | |
1435 | * mid-layer, not for which were issued internally | |
1436 | * | |
1437 | * For internal command, restore the status returned by the | |
1438 | * firmware so that user can interpret it. | |
1439 | */ | |
1440 | if (cmdid == CMDID_INT_CMDS) { | |
1da177e4 | 1441 | scb = &adapter->int_scb; |
1da177e4 | 1442 | |
0f2bb84d CH |
1443 | list_del_init(&scb->list); |
1444 | scb->state = SCB_FREE; | |
1da177e4 | 1445 | |
0f2bb84d CH |
1446 | adapter->int_status = status; |
1447 | complete(&adapter->int_waitq); | |
1448 | } else { | |
1da177e4 LT |
1449 | scb = &adapter->scb_list[cmdid]; |
1450 | ||
1451 | /* | |
1452 | * Make sure f/w has completed a valid command | |
1453 | */ | |
1454 | if( !(scb->state & SCB_ISSUED) || scb->cmd == NULL ) { | |
3b8a1ba3 BH |
1455 | dev_crit(&adapter->dev->dev, "invalid command " |
1456 | "Id %d, scb->state:%x, scsi cmd:%p\n", | |
1da177e4 LT |
1457 | cmdid, scb->state, scb->cmd); |
1458 | ||
1459 | continue; | |
1460 | } | |
1461 | ||
1462 | /* | |
1463 | * Was a abort issued for this command | |
1464 | */ | |
1465 | if( scb->state & SCB_ABORT ) { | |
1466 | ||
3b8a1ba3 BH |
1467 | dev_warn(&adapter->dev->dev, |
1468 | "aborted cmd [%x] complete\n", | |
5cd049a5 | 1469 | scb->idx); |
1da177e4 LT |
1470 | |
1471 | scb->cmd->result = (DID_ABORT << 16); | |
1472 | ||
1473 | list_add_tail(SCSI_LIST(scb->cmd), | |
1474 | &adapter->completed_list); | |
1475 | ||
1476 | mega_free_scb(adapter, scb); | |
1477 | ||
1478 | continue; | |
1479 | } | |
1480 | ||
1481 | /* | |
1482 | * Was a reset issued for this command | |
1483 | */ | |
1484 | if( scb->state & SCB_RESET ) { | |
1485 | ||
3b8a1ba3 BH |
1486 | dev_warn(&adapter->dev->dev, |
1487 | "reset cmd [%x] complete\n", | |
5cd049a5 | 1488 | scb->idx); |
1da177e4 LT |
1489 | |
1490 | scb->cmd->result = (DID_RESET << 16); | |
1491 | ||
1492 | list_add_tail(SCSI_LIST(scb->cmd), | |
1493 | &adapter->completed_list); | |
1494 | ||
1495 | mega_free_scb (adapter, scb); | |
1496 | ||
1497 | continue; | |
1498 | } | |
1499 | ||
1500 | cmd = scb->cmd; | |
1501 | pthru = scb->pthru; | |
1502 | epthru = scb->epthru; | |
1503 | mbox = (mbox_t *)scb->raw_mbox; | |
1504 | ||
1505 | #if MEGA_HAVE_STATS | |
1506 | { | |
1507 | ||
1508 | int logdrv = mbox->m_out.logdrv; | |
1509 | ||
1510 | islogical = adapter->logdrv_chan[cmd->channel]; | |
1511 | /* | |
1512 | * Maintain an error counter for the logical drive. | |
1513 | * Some application like SNMP agent need such | |
1514 | * statistics | |
1515 | */ | |
1516 | if( status && islogical && (cmd->cmnd[0] == READ_6 || | |
1517 | cmd->cmnd[0] == READ_10 || | |
1518 | cmd->cmnd[0] == READ_12)) { | |
1519 | /* | |
1520 | * Logical drive number increases by 0x80 when | |
1521 | * a logical drive is deleted | |
1522 | */ | |
1523 | adapter->rd_errors[logdrv%0x80]++; | |
1524 | } | |
1525 | ||
1526 | if( status && islogical && (cmd->cmnd[0] == WRITE_6 || | |
1527 | cmd->cmnd[0] == WRITE_10 || | |
1528 | cmd->cmnd[0] == WRITE_12)) { | |
1529 | /* | |
1530 | * Logical drive number increases by 0x80 when | |
1531 | * a logical drive is deleted | |
1532 | */ | |
1533 | adapter->wr_errors[logdrv%0x80]++; | |
1534 | } | |
1535 | ||
1536 | } | |
1537 | #endif | |
1538 | } | |
1539 | ||
1540 | /* | |
1541 | * Do not return the presence of hard disk on the channel so, | |
1542 | * inquiry sent, and returned data==hard disk or removable | |
1543 | * hard disk and not logical, request should return failure! - | |
1544 | * PJ | |
1545 | */ | |
1546 | islogical = adapter->logdrv_chan[cmd->device->channel]; | |
1547 | if( cmd->cmnd[0] == INQUIRY && !islogical ) { | |
1548 | ||
3f6270ef | 1549 | sgl = scsi_sglist(cmd); |
45711f1a JA |
1550 | if( sg_page(sgl) ) { |
1551 | c = *(unsigned char *) sg_virt(&sgl[0]); | |
3f6270ef | 1552 | } else { |
3b8a1ba3 | 1553 | dev_warn(&adapter->dev->dev, "invalid sg\n"); |
3f6270ef | 1554 | c = 0; |
1da177e4 LT |
1555 | } |
1556 | ||
1557 | if(IS_RAID_CH(adapter, cmd->device->channel) && | |
1558 | ((c & 0x1F ) == TYPE_DISK)) { | |
1559 | status = 0xF0; | |
1560 | } | |
1561 | } | |
1562 | ||
1563 | /* clear result; otherwise, success returns corrupt value */ | |
1564 | cmd->result = 0; | |
1565 | ||
1566 | /* Convert MegaRAID status to Linux error code */ | |
1567 | switch (status) { | |
1568 | case 0x00: /* SUCCESS , i.e. SCSI_STATUS_GOOD */ | |
1569 | cmd->result |= (DID_OK << 16); | |
1570 | break; | |
1571 | ||
1572 | case 0x02: /* ERROR_ABORTED, i.e. | |
1573 | SCSI_STATUS_CHECK_CONDITION */ | |
1574 | ||
1575 | /* set sense_buffer and result fields */ | |
1576 | if( mbox->m_out.cmd == MEGA_MBOXCMD_PASSTHRU || | |
1577 | mbox->m_out.cmd == MEGA_MBOXCMD_PASSTHRU64 ) { | |
1578 | ||
1579 | memcpy(cmd->sense_buffer, pthru->reqsensearea, | |
1580 | 14); | |
1581 | ||
1582 | cmd->result = (DRIVER_SENSE << 24) | | |
1583 | (DID_OK << 16) | | |
1584 | (CHECK_CONDITION << 1); | |
1585 | } | |
1586 | else { | |
1587 | if (mbox->m_out.cmd == MEGA_MBOXCMD_EXTPTHRU) { | |
1588 | ||
1589 | memcpy(cmd->sense_buffer, | |
1590 | epthru->reqsensearea, 14); | |
1591 | ||
1592 | cmd->result = (DRIVER_SENSE << 24) | | |
1593 | (DID_OK << 16) | | |
1594 | (CHECK_CONDITION << 1); | |
1595 | } else { | |
1596 | cmd->sense_buffer[0] = 0x70; | |
1597 | cmd->sense_buffer[2] = ABORTED_COMMAND; | |
1598 | cmd->result |= (CHECK_CONDITION << 1); | |
1599 | } | |
1600 | } | |
1601 | break; | |
1602 | ||
1603 | case 0x08: /* ERR_DEST_DRIVE_FAILED, i.e. | |
1604 | SCSI_STATUS_BUSY */ | |
1605 | cmd->result |= (DID_BUS_BUSY << 16) | status; | |
1606 | break; | |
1607 | ||
1608 | default: | |
1609 | #if MEGA_HAVE_CLUSTERING | |
1610 | /* | |
1611 | * If TEST_UNIT_READY fails, we know | |
1612 | * MEGA_RESERVATION_STATUS failed | |
1613 | */ | |
1614 | if( cmd->cmnd[0] == TEST_UNIT_READY ) { | |
1615 | cmd->result |= (DID_ERROR << 16) | | |
1616 | (RESERVATION_CONFLICT << 1); | |
1617 | } | |
1618 | else | |
1619 | /* | |
1620 | * Error code returned is 1 if Reserve or Release | |
1621 | * failed or the input parameter is invalid | |
1622 | */ | |
1623 | if( status == 1 && | |
1624 | (cmd->cmnd[0] == RESERVE || | |
1625 | cmd->cmnd[0] == RELEASE) ) { | |
1626 | ||
1627 | cmd->result |= (DID_ERROR << 16) | | |
1628 | (RESERVATION_CONFLICT << 1); | |
1629 | } | |
1630 | else | |
1631 | #endif | |
1632 | cmd->result |= (DID_BAD_TARGET << 16)|status; | |
1633 | } | |
1634 | ||
0f2bb84d | 1635 | mega_free_scb(adapter, scb); |
1da177e4 LT |
1636 | |
1637 | /* Add Scsi_Command to end of completed queue */ | |
1638 | list_add_tail(SCSI_LIST(cmd), &adapter->completed_list); | |
1639 | } | |
1640 | } | |
1641 | ||
1642 | ||
1643 | /* | |
1644 | * mega_runpendq() | |
1645 | * | |
1646 | * Run through the list of completed requests and finish it | |
1647 | */ | |
1648 | static void | |
1649 | mega_rundoneq (adapter_t *adapter) | |
1650 | { | |
91ebc1fa | 1651 | struct scsi_cmnd *cmd; |
1da177e4 LT |
1652 | struct list_head *pos; |
1653 | ||
1654 | list_for_each(pos, &adapter->completed_list) { | |
1655 | ||
0a04137e | 1656 | struct scsi_pointer* spos = (struct scsi_pointer *)pos; |
1da177e4 | 1657 | |
91ebc1fa | 1658 | cmd = list_entry(spos, struct scsi_cmnd, SCp); |
1da177e4 LT |
1659 | cmd->scsi_done(cmd); |
1660 | } | |
1661 | ||
1662 | INIT_LIST_HEAD(&adapter->completed_list); | |
1663 | } | |
1664 | ||
1665 | ||
1666 | /* | |
1667 | * Free a SCB structure | |
1668 | * Note: We assume the scsi commands associated with this scb is not free yet. | |
1669 | */ | |
1670 | static void | |
1671 | mega_free_scb(adapter_t *adapter, scb_t *scb) | |
1672 | { | |
1673 | switch( scb->dma_type ) { | |
1674 | ||
1675 | case MEGA_DMA_TYPE_NONE: | |
1676 | break; | |
1677 | ||
1da177e4 | 1678 | case MEGA_SGLIST: |
3f6270ef | 1679 | scsi_dma_unmap(scb->cmd); |
1da177e4 | 1680 | break; |
1da177e4 LT |
1681 | default: |
1682 | break; | |
1683 | } | |
1684 | ||
1685 | /* | |
1686 | * Remove from the pending list | |
1687 | */ | |
1688 | list_del_init(&scb->list); | |
1689 | ||
1690 | /* Link the scb back into free list */ | |
1691 | scb->state = SCB_FREE; | |
1692 | scb->cmd = NULL; | |
1693 | ||
1694 | list_add(&scb->list, &adapter->free_list); | |
1695 | } | |
1696 | ||
1697 | ||
1698 | static int | |
1699 | __mega_busywait_mbox (adapter_t *adapter) | |
1700 | { | |
1701 | volatile mbox_t *mbox = adapter->mbox; | |
1702 | long counter; | |
1703 | ||
1704 | for (counter = 0; counter < 10000; counter++) { | |
1705 | if (!mbox->m_in.busy) | |
1706 | return 0; | |
e1fa0cea AL |
1707 | udelay(100); |
1708 | cond_resched(); | |
1da177e4 LT |
1709 | } |
1710 | return -1; /* give up after 1 second */ | |
1711 | } | |
1712 | ||
1713 | /* | |
1714 | * Copies data to SGLIST | |
1715 | * Note: For 64 bit cards, we need a minimum of one SG element for read/write | |
1716 | */ | |
1717 | static int | |
1718 | mega_build_sglist(adapter_t *adapter, scb_t *scb, u32 *buf, u32 *len) | |
1719 | { | |
3f6270ef | 1720 | struct scatterlist *sg; |
91ebc1fa | 1721 | struct scsi_cmnd *cmd; |
1da177e4 LT |
1722 | int sgcnt; |
1723 | int idx; | |
1724 | ||
1725 | cmd = scb->cmd; | |
1726 | ||
1da177e4 LT |
1727 | /* |
1728 | * Copy Scatter-Gather list info into controller structure. | |
1729 | * | |
1730 | * The number of sg elements returned must not exceed our limit | |
1731 | */ | |
3f6270ef | 1732 | sgcnt = scsi_dma_map(cmd); |
1da177e4 LT |
1733 | |
1734 | scb->dma_type = MEGA_SGLIST; | |
1735 | ||
3f6270ef | 1736 | BUG_ON(sgcnt > adapter->sglen || sgcnt < 0); |
1da177e4 | 1737 | |
51c928c3 JB |
1738 | *len = 0; |
1739 | ||
d5e89385 FT |
1740 | if (scsi_sg_count(cmd) == 1 && !adapter->has_64bit_addr) { |
1741 | sg = scsi_sglist(cmd); | |
1742 | scb->dma_h_bulkdata = sg_dma_address(sg); | |
1743 | *buf = (u32)scb->dma_h_bulkdata; | |
1744 | *len = sg_dma_len(sg); | |
1745 | return 0; | |
1746 | } | |
1747 | ||
3f6270ef FT |
1748 | scsi_for_each_sg(cmd, sg, sgcnt, idx) { |
1749 | if (adapter->has_64bit_addr) { | |
1750 | scb->sgl64[idx].address = sg_dma_address(sg); | |
1751 | *len += scb->sgl64[idx].length = sg_dma_len(sg); | |
1752 | } else { | |
1753 | scb->sgl[idx].address = sg_dma_address(sg); | |
1754 | *len += scb->sgl[idx].length = sg_dma_len(sg); | |
1da177e4 LT |
1755 | } |
1756 | } | |
1757 | ||
1758 | /* Reset pointer and length fields */ | |
1759 | *buf = scb->sgl_dma_addr; | |
1760 | ||
1da177e4 LT |
1761 | /* Return count of SG requests */ |
1762 | return sgcnt; | |
1763 | } | |
1764 | ||
1765 | ||
1766 | /* | |
1767 | * mega_8_to_40ld() | |
1768 | * | |
1769 | * takes all info in AdapterInquiry structure and puts it into ProductInfo and | |
1770 | * Enquiry3 structures for later use | |
1771 | */ | |
1772 | static void | |
1773 | mega_8_to_40ld(mraid_inquiry *inquiry, mega_inquiry3 *enquiry3, | |
1774 | mega_product_info *product_info) | |
1775 | { | |
1776 | int i; | |
1777 | ||
1778 | product_info->max_commands = inquiry->adapter_info.max_commands; | |
1779 | enquiry3->rebuild_rate = inquiry->adapter_info.rebuild_rate; | |
1780 | product_info->nchannels = inquiry->adapter_info.nchannels; | |
1781 | ||
1782 | for (i = 0; i < 4; i++) { | |
1783 | product_info->fw_version[i] = | |
1784 | inquiry->adapter_info.fw_version[i]; | |
1785 | ||
1786 | product_info->bios_version[i] = | |
1787 | inquiry->adapter_info.bios_version[i]; | |
1788 | } | |
1789 | enquiry3->cache_flush_interval = | |
1790 | inquiry->adapter_info.cache_flush_interval; | |
1791 | ||
1792 | product_info->dram_size = inquiry->adapter_info.dram_size; | |
1793 | ||
1794 | enquiry3->num_ldrv = inquiry->logdrv_info.num_ldrv; | |
1795 | ||
1796 | for (i = 0; i < MAX_LOGICAL_DRIVES_8LD; i++) { | |
1797 | enquiry3->ldrv_size[i] = inquiry->logdrv_info.ldrv_size[i]; | |
1798 | enquiry3->ldrv_prop[i] = inquiry->logdrv_info.ldrv_prop[i]; | |
1799 | enquiry3->ldrv_state[i] = inquiry->logdrv_info.ldrv_state[i]; | |
1800 | } | |
1801 | ||
1802 | for (i = 0; i < (MAX_PHYSICAL_DRIVES); i++) | |
1803 | enquiry3->pdrv_state[i] = inquiry->pdrv_info.pdrv_state[i]; | |
1804 | } | |
1805 | ||
1806 | static inline void | |
1807 | mega_free_sgl(adapter_t *adapter) | |
1808 | { | |
1809 | scb_t *scb; | |
1810 | int i; | |
1811 | ||
1812 | for(i = 0; i < adapter->max_cmds; i++) { | |
1813 | ||
1814 | scb = &adapter->scb_list[i]; | |
1815 | ||
1816 | if( scb->sgl64 ) { | |
1817 | pci_free_consistent(adapter->dev, | |
1818 | sizeof(mega_sgl64) * adapter->sglen, | |
1819 | scb->sgl64, | |
1820 | scb->sgl_dma_addr); | |
1821 | ||
1822 | scb->sgl64 = NULL; | |
1823 | } | |
1824 | ||
1825 | if( scb->pthru ) { | |
1826 | pci_free_consistent(adapter->dev, sizeof(mega_passthru), | |
1827 | scb->pthru, scb->pthru_dma_addr); | |
1828 | ||
1829 | scb->pthru = NULL; | |
1830 | } | |
1831 | ||
1832 | if( scb->epthru ) { | |
1833 | pci_free_consistent(adapter->dev, | |
1834 | sizeof(mega_ext_passthru), | |
1835 | scb->epthru, scb->epthru_dma_addr); | |
1836 | ||
1837 | scb->epthru = NULL; | |
1838 | } | |
1839 | ||
1840 | } | |
1841 | } | |
1842 | ||
1843 | ||
1844 | /* | |
1845 | * Get information about the card/driver | |
1846 | */ | |
1847 | const char * | |
1848 | megaraid_info(struct Scsi_Host *host) | |
1849 | { | |
1850 | static char buffer[512]; | |
1851 | adapter_t *adapter; | |
1852 | ||
1853 | adapter = (adapter_t *)host->hostdata; | |
1854 | ||
1855 | sprintf (buffer, | |
1856 | "LSI Logic MegaRAID %s %d commands %d targs %d chans %d luns", | |
1857 | adapter->fw_version, adapter->product_info.max_commands, | |
1858 | adapter->host->max_id, adapter->host->max_channel, | |
1abf635d | 1859 | (u32)adapter->host->max_lun); |
1da177e4 LT |
1860 | return buffer; |
1861 | } | |
1862 | ||
1863 | /* | |
1864 | * Abort a previous SCSI request. Only commands on the pending list can be | |
1865 | * aborted. All the commands issued to the F/W must complete. | |
1866 | */ | |
1867 | static int | |
91ebc1fa | 1868 | megaraid_abort(struct scsi_cmnd *cmd) |
1da177e4 LT |
1869 | { |
1870 | adapter_t *adapter; | |
1871 | int rval; | |
1872 | ||
1873 | adapter = (adapter_t *)cmd->device->host->hostdata; | |
1874 | ||
1875 | rval = megaraid_abort_and_reset(adapter, cmd, SCB_ABORT); | |
1876 | ||
1877 | /* | |
1878 | * This is required here to complete any completed requests | |
1879 | * to be communicated over to the mid layer. | |
1880 | */ | |
1881 | mega_rundoneq(adapter); | |
1882 | ||
1883 | return rval; | |
1884 | } | |
1885 | ||
1886 | ||
1887 | static int | |
fa4c4966 | 1888 | megaraid_reset(struct scsi_cmnd *cmd) |
1da177e4 LT |
1889 | { |
1890 | adapter_t *adapter; | |
1891 | megacmd_t mc; | |
1892 | int rval; | |
1893 | ||
1894 | adapter = (adapter_t *)cmd->device->host->hostdata; | |
1895 | ||
1896 | #if MEGA_HAVE_CLUSTERING | |
1897 | mc.cmd = MEGA_CLUSTER_CMD; | |
1898 | mc.opcode = MEGA_RESET_RESERVATIONS; | |
1899 | ||
cb0258a2 | 1900 | if( mega_internal_command(adapter, &mc, NULL) != 0 ) { |
3b8a1ba3 | 1901 | dev_warn(&adapter->dev->dev, "reservation reset failed\n"); |
1da177e4 LT |
1902 | } |
1903 | else { | |
3b8a1ba3 | 1904 | dev_info(&adapter->dev->dev, "reservation reset\n"); |
1da177e4 | 1905 | } |
1da177e4 LT |
1906 | #endif |
1907 | ||
fa4c4966 JB |
1908 | spin_lock_irq(&adapter->lock); |
1909 | ||
1da177e4 LT |
1910 | rval = megaraid_abort_and_reset(adapter, cmd, SCB_RESET); |
1911 | ||
1912 | /* | |
1913 | * This is required here to complete any completed requests | |
1914 | * to be communicated over to the mid layer. | |
1915 | */ | |
1916 | mega_rundoneq(adapter); | |
94d0e7b8 JG |
1917 | spin_unlock_irq(&adapter->lock); |
1918 | ||
fa4c4966 | 1919 | return rval; |
94d0e7b8 | 1920 | } |
1da177e4 | 1921 | |
1da177e4 LT |
1922 | /** |
1923 | * megaraid_abort_and_reset() | |
1924 | * @adapter - megaraid soft state | |
1925 | * @cmd - scsi command to be aborted or reset | |
1926 | * @aor - abort or reset flag | |
1927 | * | |
1928 | * Try to locate the scsi command in the pending queue. If found and is not | |
1929 | * issued to the controller, abort/reset it. Otherwise return failure | |
1930 | */ | |
1931 | static int | |
91ebc1fa | 1932 | megaraid_abort_and_reset(adapter_t *adapter, struct scsi_cmnd *cmd, int aor) |
1da177e4 LT |
1933 | { |
1934 | struct list_head *pos, *next; | |
1935 | scb_t *scb; | |
1936 | ||
3b8a1ba3 | 1937 | dev_warn(&adapter->dev->dev, "%s cmd=%x <c=%d t=%d l=%d>\n", |
5cd049a5 | 1938 | (aor == SCB_ABORT)? "ABORTING":"RESET", |
9cb78c16 HR |
1939 | cmd->cmnd[0], cmd->device->channel, |
1940 | cmd->device->id, (u32)cmd->device->lun); | |
1da177e4 LT |
1941 | |
1942 | if(list_empty(&adapter->pending_list)) | |
b6c92b7e | 1943 | return FAILED; |
1da177e4 LT |
1944 | |
1945 | list_for_each_safe(pos, next, &adapter->pending_list) { | |
1946 | ||
1947 | scb = list_entry(pos, scb_t, list); | |
1948 | ||
1949 | if (scb->cmd == cmd) { /* Found command */ | |
1950 | ||
1951 | scb->state |= aor; | |
1952 | ||
1953 | /* | |
d41ad938 NA |
1954 | * Check if this command has firmware ownership. If |
1955 | * yes, we cannot reset this command. Whenever f/w | |
1da177e4 LT |
1956 | * completes this command, we will return appropriate |
1957 | * status from ISR. | |
1958 | */ | |
1959 | if( scb->state & SCB_ISSUED ) { | |
1960 | ||
3b8a1ba3 BH |
1961 | dev_warn(&adapter->dev->dev, |
1962 | "%s[%x], fw owner\n", | |
1da177e4 | 1963 | (aor==SCB_ABORT) ? "ABORTING":"RESET", |
5cd049a5 | 1964 | scb->idx); |
1da177e4 | 1965 | |
b6c92b7e | 1966 | return FAILED; |
1da177e4 LT |
1967 | } |
1968 | else { | |
1969 | ||
1970 | /* | |
1971 | * Not yet issued! Remove from the pending | |
1972 | * list | |
1973 | */ | |
3b8a1ba3 BH |
1974 | dev_warn(&adapter->dev->dev, |
1975 | "%s-[%x], driver owner\n", | |
1da177e4 | 1976 | (aor==SCB_ABORT) ? "ABORTING":"RESET", |
5cd049a5 | 1977 | scb->idx); |
1da177e4 LT |
1978 | |
1979 | mega_free_scb(adapter, scb); | |
1980 | ||
1981 | if( aor == SCB_ABORT ) { | |
1982 | cmd->result = (DID_ABORT << 16); | |
1983 | } | |
1984 | else { | |
1985 | cmd->result = (DID_RESET << 16); | |
1986 | } | |
1987 | ||
1988 | list_add_tail(SCSI_LIST(cmd), | |
1989 | &adapter->completed_list); | |
1990 | ||
b6c92b7e | 1991 | return SUCCESS; |
1da177e4 LT |
1992 | } |
1993 | } | |
1994 | } | |
1995 | ||
b6c92b7e | 1996 | return FAILED; |
1da177e4 LT |
1997 | } |
1998 | ||
1999 | static inline int | |
2000 | make_local_pdev(adapter_t *adapter, struct pci_dev **pdev) | |
2001 | { | |
8b1fce04 | 2002 | *pdev = pci_alloc_dev(NULL); |
1da177e4 LT |
2003 | |
2004 | if( *pdev == NULL ) return -1; | |
2005 | ||
2006 | memcpy(*pdev, adapter->dev, sizeof(struct pci_dev)); | |
2007 | ||
284901a9 | 2008 | if( pci_set_dma_mask(*pdev, DMA_BIT_MASK(32)) != 0 ) { |
1da177e4 LT |
2009 | kfree(*pdev); |
2010 | return -1; | |
2011 | } | |
2012 | ||
2013 | return 0; | |
2014 | } | |
2015 | ||
2016 | static inline void | |
2017 | free_local_pdev(struct pci_dev *pdev) | |
2018 | { | |
2019 | kfree(pdev); | |
2020 | } | |
2021 | ||
2022 | /** | |
2023 | * mega_allocate_inquiry() | |
2024 | * @dma_handle - handle returned for dma address | |
2025 | * @pdev - handle to pci device | |
2026 | * | |
2027 | * allocates memory for inquiry structure | |
2028 | */ | |
2029 | static inline void * | |
2030 | mega_allocate_inquiry(dma_addr_t *dma_handle, struct pci_dev *pdev) | |
2031 | { | |
2032 | return pci_alloc_consistent(pdev, sizeof(mega_inquiry3), dma_handle); | |
2033 | } | |
2034 | ||
2035 | ||
2036 | static inline void | |
2037 | mega_free_inquiry(void *inquiry, dma_addr_t dma_handle, struct pci_dev *pdev) | |
2038 | { | |
2039 | pci_free_consistent(pdev, sizeof(mega_inquiry3), inquiry, dma_handle); | |
2040 | } | |
2041 | ||
2042 | ||
2043 | #ifdef CONFIG_PROC_FS | |
2044 | /* Following code handles /proc fs */ | |
2045 | ||
1da177e4 | 2046 | /** |
c7f079ca DH |
2047 | * proc_show_config() |
2048 | * @m - Synthetic file construction data | |
2049 | * @v - File iterator | |
1da177e4 LT |
2050 | * |
2051 | * Display configuration information about the controller. | |
2052 | */ | |
2053 | static int | |
c7f079ca | 2054 | proc_show_config(struct seq_file *m, void *v) |
1da177e4 LT |
2055 | { |
2056 | ||
c7f079ca | 2057 | adapter_t *adapter = m->private; |
1da177e4 | 2058 | |
c7f079ca | 2059 | seq_puts(m, MEGARAID_VERSION); |
1da177e4 | 2060 | if(adapter->product_info.product_name[0]) |
c7f079ca | 2061 | seq_printf(m, "%s\n", adapter->product_info.product_name); |
1da177e4 | 2062 | |
c7f079ca | 2063 | seq_puts(m, "Controller Type: "); |
1da177e4 | 2064 | |
c7f079ca DH |
2065 | if( adapter->flag & BOARD_MEMMAP ) |
2066 | seq_puts(m, "438/466/467/471/493/518/520/531/532\n"); | |
2067 | else | |
2068 | seq_puts(m, "418/428/434\n"); | |
1da177e4 | 2069 | |
c7f079ca DH |
2070 | if(adapter->flag & BOARD_40LD) |
2071 | seq_puts(m, "Controller Supports 40 Logical Drives\n"); | |
1da177e4 | 2072 | |
c7f079ca DH |
2073 | if(adapter->flag & BOARD_64BIT) |
2074 | seq_puts(m, "Controller capable of 64-bit memory addressing\n"); | |
2075 | if( adapter->has_64bit_addr ) | |
2076 | seq_puts(m, "Controller using 64-bit memory addressing\n"); | |
2077 | else | |
2078 | seq_puts(m, "Controller is not using 64-bit memory addressing\n"); | |
2079 | ||
2080 | seq_printf(m, "Base = %08lx, Irq = %d, ", | |
2081 | adapter->base, adapter->host->irq); | |
2082 | ||
2083 | seq_printf(m, "Logical Drives = %d, Channels = %d\n", | |
2084 | adapter->numldrv, adapter->product_info.nchannels); | |
2085 | ||
2086 | seq_printf(m, "Version =%s:%s, DRAM = %dMb\n", | |
2087 | adapter->fw_version, adapter->bios_version, | |
2088 | adapter->product_info.dram_size); | |
2089 | ||
2090 | seq_printf(m, "Controller Queue Depth = %d, Driver Queue Depth = %d\n", | |
2091 | adapter->product_info.max_commands, adapter->max_cmds); | |
2092 | ||
2093 | seq_printf(m, "support_ext_cdb = %d\n", adapter->support_ext_cdb); | |
2094 | seq_printf(m, "support_random_del = %d\n", adapter->support_random_del); | |
2095 | seq_printf(m, "boot_ldrv_enabled = %d\n", adapter->boot_ldrv_enabled); | |
2096 | seq_printf(m, "boot_ldrv = %d\n", adapter->boot_ldrv); | |
2097 | seq_printf(m, "boot_pdrv_enabled = %d\n", adapter->boot_pdrv_enabled); | |
2098 | seq_printf(m, "boot_pdrv_ch = %d\n", adapter->boot_pdrv_ch); | |
2099 | seq_printf(m, "boot_pdrv_tgt = %d\n", adapter->boot_pdrv_tgt); | |
2100 | seq_printf(m, "quiescent = %d\n", | |
2101 | atomic_read(&adapter->quiescent)); | |
2102 | seq_printf(m, "has_cluster = %d\n", adapter->has_cluster); | |
2103 | ||
2104 | seq_puts(m, "\nModule Parameters:\n"); | |
2105 | seq_printf(m, "max_cmd_per_lun = %d\n", max_cmd_per_lun); | |
2106 | seq_printf(m, "max_sectors_per_io = %d\n", max_sectors_per_io); | |
2107 | return 0; | |
1da177e4 LT |
2108 | } |
2109 | ||
1da177e4 | 2110 | /** |
c7f079ca DH |
2111 | * proc_show_stat() |
2112 | * @m - Synthetic file construction data | |
2113 | * @v - File iterator | |
1da177e4 | 2114 | * |
c7f079ca | 2115 | * Display statistical information about the I/O activity. |
1da177e4 LT |
2116 | */ |
2117 | static int | |
c7f079ca | 2118 | proc_show_stat(struct seq_file *m, void *v) |
1da177e4 | 2119 | { |
c7f079ca DH |
2120 | adapter_t *adapter = m->private; |
2121 | #if MEGA_HAVE_STATS | |
1da177e4 | 2122 | int i; |
c7f079ca | 2123 | #endif |
1da177e4 | 2124 | |
c7f079ca DH |
2125 | seq_puts(m, "Statistical Information for this controller\n"); |
2126 | seq_printf(m, "pend_cmds = %d\n", atomic_read(&adapter->pend_cmds)); | |
1da177e4 LT |
2127 | #if MEGA_HAVE_STATS |
2128 | for(i = 0; i < adapter->numldrv; i++) { | |
c7f079ca DH |
2129 | seq_printf(m, "Logical Drive %d:\n", i); |
2130 | seq_printf(m, "\tReads Issued = %lu, Writes Issued = %lu\n", | |
2131 | adapter->nreads[i], adapter->nwrites[i]); | |
2132 | seq_printf(m, "\tSectors Read = %lu, Sectors Written = %lu\n", | |
2133 | adapter->nreadblocks[i], adapter->nwriteblocks[i]); | |
2134 | seq_printf(m, "\tRead errors = %lu, Write errors = %lu\n\n", | |
2135 | adapter->rd_errors[i], adapter->wr_errors[i]); | |
1da177e4 LT |
2136 | } |
2137 | #else | |
c7f079ca | 2138 | seq_puts(m, "IO and error counters not compiled in driver.\n"); |
1da177e4 | 2139 | #endif |
c7f079ca | 2140 | return 0; |
1da177e4 LT |
2141 | } |
2142 | ||
2143 | ||
2144 | /** | |
c7f079ca DH |
2145 | * proc_show_mbox() |
2146 | * @m - Synthetic file construction data | |
2147 | * @v - File iterator | |
1da177e4 LT |
2148 | * |
2149 | * Display mailbox information for the last command issued. This information | |
2150 | * is good for debugging. | |
2151 | */ | |
2152 | static int | |
c7f079ca | 2153 | proc_show_mbox(struct seq_file *m, void *v) |
1da177e4 | 2154 | { |
c7f079ca | 2155 | adapter_t *adapter = m->private; |
1da177e4 | 2156 | volatile mbox_t *mbox = adapter->mbox; |
c7f079ca DH |
2157 | |
2158 | seq_puts(m, "Contents of Mail Box Structure\n"); | |
2159 | seq_printf(m, " Fw Command = 0x%02x\n", mbox->m_out.cmd); | |
2160 | seq_printf(m, " Cmd Sequence = 0x%02x\n", mbox->m_out.cmdid); | |
2161 | seq_printf(m, " No of Sectors= %04d\n", mbox->m_out.numsectors); | |
2162 | seq_printf(m, " LBA = 0x%02x\n", mbox->m_out.lba); | |
2163 | seq_printf(m, " DTA = 0x%08x\n", mbox->m_out.xferaddr); | |
2164 | seq_printf(m, " Logical Drive= 0x%02x\n", mbox->m_out.logdrv); | |
2165 | seq_printf(m, " No of SG Elmt= 0x%02x\n", mbox->m_out.numsgelements); | |
2166 | seq_printf(m, " Busy = %01x\n", mbox->m_in.busy); | |
2167 | seq_printf(m, " Status = 0x%02x\n", mbox->m_in.status); | |
2168 | return 0; | |
1da177e4 LT |
2169 | } |
2170 | ||
2171 | ||
2172 | /** | |
c7f079ca DH |
2173 | * proc_show_rebuild_rate() |
2174 | * @m - Synthetic file construction data | |
2175 | * @v - File iterator | |
1da177e4 LT |
2176 | * |
2177 | * Display current rebuild rate | |
2178 | */ | |
2179 | static int | |
c7f079ca | 2180 | proc_show_rebuild_rate(struct seq_file *m, void *v) |
1da177e4 | 2181 | { |
c7f079ca | 2182 | adapter_t *adapter = m->private; |
1da177e4 LT |
2183 | dma_addr_t dma_handle; |
2184 | caddr_t inquiry; | |
2185 | struct pci_dev *pdev; | |
1da177e4 | 2186 | |
c7f079ca DH |
2187 | if( make_local_pdev(adapter, &pdev) != 0 ) |
2188 | return 0; | |
1da177e4 | 2189 | |
c7f079ca DH |
2190 | if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL ) |
2191 | goto free_pdev; | |
1da177e4 LT |
2192 | |
2193 | if( mega_adapinq(adapter, dma_handle) != 0 ) { | |
c7f079ca | 2194 | seq_puts(m, "Adapter inquiry failed.\n"); |
3b8a1ba3 | 2195 | dev_warn(&adapter->dev->dev, "inquiry failed\n"); |
c7f079ca | 2196 | goto free_inquiry; |
1da177e4 LT |
2197 | } |
2198 | ||
c7f079ca DH |
2199 | if( adapter->flag & BOARD_40LD ) |
2200 | seq_printf(m, "Rebuild Rate: [%d%%]\n", | |
2201 | ((mega_inquiry3 *)inquiry)->rebuild_rate); | |
2202 | else | |
2203 | seq_printf(m, "Rebuild Rate: [%d%%]\n", | |
1da177e4 | 2204 | ((mraid_ext_inquiry *) |
c7f079ca | 2205 | inquiry)->raid_inq.adapter_info.rebuild_rate); |
1da177e4 | 2206 | |
c7f079ca | 2207 | free_inquiry: |
1da177e4 | 2208 | mega_free_inquiry(inquiry, dma_handle, pdev); |
c7f079ca | 2209 | free_pdev: |
1da177e4 | 2210 | free_local_pdev(pdev); |
c7f079ca | 2211 | return 0; |
1da177e4 LT |
2212 | } |
2213 | ||
2214 | ||
2215 | /** | |
c7f079ca DH |
2216 | * proc_show_battery() |
2217 | * @m - Synthetic file construction data | |
2218 | * @v - File iterator | |
1da177e4 LT |
2219 | * |
2220 | * Display information about the battery module on the controller. | |
2221 | */ | |
2222 | static int | |
c7f079ca | 2223 | proc_show_battery(struct seq_file *m, void *v) |
1da177e4 | 2224 | { |
c7f079ca | 2225 | adapter_t *adapter = m->private; |
1da177e4 LT |
2226 | dma_addr_t dma_handle; |
2227 | caddr_t inquiry; | |
2228 | struct pci_dev *pdev; | |
c7f079ca | 2229 | u8 battery_status; |
1da177e4 | 2230 | |
c7f079ca DH |
2231 | if( make_local_pdev(adapter, &pdev) != 0 ) |
2232 | return 0; | |
1da177e4 | 2233 | |
c7f079ca DH |
2234 | if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL ) |
2235 | goto free_pdev; | |
1da177e4 LT |
2236 | |
2237 | if( mega_adapinq(adapter, dma_handle) != 0 ) { | |
91c40f24 | 2238 | seq_puts(m, "Adapter inquiry failed.\n"); |
3b8a1ba3 | 2239 | dev_warn(&adapter->dev->dev, "inquiry failed\n"); |
c7f079ca | 2240 | goto free_inquiry; |
1da177e4 LT |
2241 | } |
2242 | ||
2243 | if( adapter->flag & BOARD_40LD ) { | |
2244 | battery_status = ((mega_inquiry3 *)inquiry)->battery_status; | |
2245 | } | |
2246 | else { | |
2247 | battery_status = ((mraid_ext_inquiry *)inquiry)-> | |
2248 | raid_inq.adapter_info.battery_status; | |
2249 | } | |
2250 | ||
2251 | /* | |
2252 | * Decode the battery status | |
2253 | */ | |
c7f079ca | 2254 | seq_printf(m, "Battery Status:[%d]", battery_status); |
1da177e4 LT |
2255 | |
2256 | if(battery_status == MEGA_BATT_CHARGE_DONE) | |
c7f079ca | 2257 | seq_puts(m, " Charge Done"); |
1da177e4 LT |
2258 | |
2259 | if(battery_status & MEGA_BATT_MODULE_MISSING) | |
c7f079ca | 2260 | seq_puts(m, " Module Missing"); |
1da177e4 LT |
2261 | |
2262 | if(battery_status & MEGA_BATT_LOW_VOLTAGE) | |
c7f079ca | 2263 | seq_puts(m, " Low Voltage"); |
1da177e4 LT |
2264 | |
2265 | if(battery_status & MEGA_BATT_TEMP_HIGH) | |
c7f079ca | 2266 | seq_puts(m, " Temperature High"); |
1da177e4 LT |
2267 | |
2268 | if(battery_status & MEGA_BATT_PACK_MISSING) | |
c7f079ca | 2269 | seq_puts(m, " Pack Missing"); |
1da177e4 LT |
2270 | |
2271 | if(battery_status & MEGA_BATT_CHARGE_INPROG) | |
c7f079ca | 2272 | seq_puts(m, " Charge In-progress"); |
1da177e4 LT |
2273 | |
2274 | if(battery_status & MEGA_BATT_CHARGE_FAIL) | |
c7f079ca | 2275 | seq_puts(m, " Charge Fail"); |
1da177e4 LT |
2276 | |
2277 | if(battery_status & MEGA_BATT_CYCLES_EXCEEDED) | |
c7f079ca | 2278 | seq_puts(m, " Cycles Exceeded"); |
1da177e4 | 2279 | |
c7f079ca | 2280 | seq_putc(m, '\n'); |
1da177e4 | 2281 | |
c7f079ca | 2282 | free_inquiry: |
1da177e4 | 2283 | mega_free_inquiry(inquiry, dma_handle, pdev); |
c7f079ca | 2284 | free_pdev: |
1da177e4 | 2285 | free_local_pdev(pdev); |
c7f079ca | 2286 | return 0; |
1da177e4 LT |
2287 | } |
2288 | ||
2289 | ||
c7f079ca DH |
2290 | /* |
2291 | * Display scsi inquiry | |
1da177e4 | 2292 | */ |
c7f079ca DH |
2293 | static void |
2294 | mega_print_inquiry(struct seq_file *m, char *scsi_inq) | |
1da177e4 | 2295 | { |
c7f079ca | 2296 | int i; |
1da177e4 | 2297 | |
c7f079ca DH |
2298 | seq_puts(m, " Vendor: "); |
2299 | seq_write(m, scsi_inq + 8, 8); | |
2300 | seq_puts(m, " Model: "); | |
2301 | seq_write(m, scsi_inq + 16, 16); | |
2302 | seq_puts(m, " Rev: "); | |
2303 | seq_write(m, scsi_inq + 32, 4); | |
2304 | seq_putc(m, '\n'); | |
1da177e4 | 2305 | |
c7f079ca DH |
2306 | i = scsi_inq[0] & 0x1f; |
2307 | seq_printf(m, " Type: %s ", scsi_device_type(i)); | |
1da177e4 | 2308 | |
c7f079ca DH |
2309 | seq_printf(m, " ANSI SCSI revision: %02x", |
2310 | scsi_inq[2] & 0x07); | |
1da177e4 | 2311 | |
c7f079ca DH |
2312 | if( (scsi_inq[2] & 0x07) == 1 && (scsi_inq[3] & 0x0f) == 1 ) |
2313 | seq_puts(m, " CCS\n"); | |
2314 | else | |
2315 | seq_putc(m, '\n'); | |
1da177e4 LT |
2316 | } |
2317 | ||
1da177e4 | 2318 | /** |
c7f079ca DH |
2319 | * proc_show_pdrv() |
2320 | * @m - Synthetic file construction data | |
1da177e4 LT |
2321 | * @page - buffer to write the data in |
2322 | * @adapter - pointer to our soft state | |
2323 | * | |
2324 | * Display information about the physical drives. | |
2325 | */ | |
2326 | static int | |
c7f079ca | 2327 | proc_show_pdrv(struct seq_file *m, adapter_t *adapter, int channel) |
1da177e4 LT |
2328 | { |
2329 | dma_addr_t dma_handle; | |
2330 | char *scsi_inq; | |
2331 | dma_addr_t scsi_inq_dma_handle; | |
2332 | caddr_t inquiry; | |
2333 | struct pci_dev *pdev; | |
2334 | u8 *pdrv_state; | |
2335 | u8 state; | |
2336 | int tgt; | |
2337 | int max_channels; | |
1da177e4 LT |
2338 | int i; |
2339 | ||
c7f079ca DH |
2340 | if( make_local_pdev(adapter, &pdev) != 0 ) |
2341 | return 0; | |
1da177e4 | 2342 | |
c7f079ca | 2343 | if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL ) |
1da177e4 | 2344 | goto free_pdev; |
1da177e4 LT |
2345 | |
2346 | if( mega_adapinq(adapter, dma_handle) != 0 ) { | |
c7f079ca | 2347 | seq_puts(m, "Adapter inquiry failed.\n"); |
3b8a1ba3 | 2348 | dev_warn(&adapter->dev->dev, "inquiry failed\n"); |
1da177e4 LT |
2349 | goto free_inquiry; |
2350 | } | |
2351 | ||
2352 | ||
2353 | scsi_inq = pci_alloc_consistent(pdev, 256, &scsi_inq_dma_handle); | |
1da177e4 | 2354 | if( scsi_inq == NULL ) { |
c7f079ca | 2355 | seq_puts(m, "memory not available for scsi inq.\n"); |
1da177e4 LT |
2356 | goto free_inquiry; |
2357 | } | |
2358 | ||
2359 | if( adapter->flag & BOARD_40LD ) { | |
2360 | pdrv_state = ((mega_inquiry3 *)inquiry)->pdrv_state; | |
2361 | } | |
2362 | else { | |
2363 | pdrv_state = ((mraid_ext_inquiry *)inquiry)-> | |
2364 | raid_inq.pdrv_info.pdrv_state; | |
2365 | } | |
2366 | ||
2367 | max_channels = adapter->product_info.nchannels; | |
2368 | ||
2369 | if( channel >= max_channels ) { | |
2370 | goto free_pci; | |
2371 | } | |
2372 | ||
2373 | for( tgt = 0; tgt <= MAX_TARGET; tgt++ ) { | |
2374 | ||
2375 | i = channel*16 + tgt; | |
2376 | ||
2377 | state = *(pdrv_state + i); | |
1da177e4 | 2378 | switch( state & 0x0F ) { |
1da177e4 | 2379 | case PDRV_ONLINE: |
c7f079ca DH |
2380 | seq_printf(m, "Channel:%2d Id:%2d State: Online", |
2381 | channel, tgt); | |
1da177e4 LT |
2382 | break; |
2383 | ||
2384 | case PDRV_FAILED: | |
c7f079ca DH |
2385 | seq_printf(m, "Channel:%2d Id:%2d State: Failed", |
2386 | channel, tgt); | |
1da177e4 LT |
2387 | break; |
2388 | ||
2389 | case PDRV_RBLD: | |
c7f079ca DH |
2390 | seq_printf(m, "Channel:%2d Id:%2d State: Rebuild", |
2391 | channel, tgt); | |
1da177e4 LT |
2392 | break; |
2393 | ||
2394 | case PDRV_HOTSPARE: | |
c7f079ca DH |
2395 | seq_printf(m, "Channel:%2d Id:%2d State: Hot spare", |
2396 | channel, tgt); | |
1da177e4 LT |
2397 | break; |
2398 | ||
2399 | default: | |
c7f079ca DH |
2400 | seq_printf(m, "Channel:%2d Id:%2d State: Un-configured", |
2401 | channel, tgt); | |
1da177e4 | 2402 | break; |
1da177e4 LT |
2403 | } |
2404 | ||
2405 | /* | |
2406 | * This interface displays inquiries for disk drives | |
2407 | * only. Inquries for logical drives and non-disk | |
2408 | * devices are available through /proc/scsi/scsi | |
2409 | */ | |
2410 | memset(scsi_inq, 0, 256); | |
2411 | if( mega_internal_dev_inquiry(adapter, channel, tgt, | |
2412 | scsi_inq_dma_handle) || | |
2413 | (scsi_inq[0] & 0x1F) != TYPE_DISK ) { | |
2414 | continue; | |
2415 | } | |
2416 | ||
2417 | /* | |
2418 | * Check for overflow. We print less than 240 | |
2419 | * characters for inquiry | |
2420 | */ | |
c7f079ca DH |
2421 | seq_puts(m, ".\n"); |
2422 | mega_print_inquiry(m, scsi_inq); | |
1da177e4 LT |
2423 | } |
2424 | ||
2425 | free_pci: | |
2426 | pci_free_consistent(pdev, 256, scsi_inq, scsi_inq_dma_handle); | |
2427 | free_inquiry: | |
2428 | mega_free_inquiry(inquiry, dma_handle, pdev); | |
2429 | free_pdev: | |
2430 | free_local_pdev(pdev); | |
c7f079ca | 2431 | return 0; |
1da177e4 LT |
2432 | } |
2433 | ||
1da177e4 | 2434 | /** |
c7f079ca DH |
2435 | * proc_show_pdrv_ch0() |
2436 | * @m - Synthetic file construction data | |
2437 | * @v - File iterator | |
1da177e4 | 2438 | * |
c7f079ca | 2439 | * Display information about the physical drives on physical channel 0. |
1da177e4 LT |
2440 | */ |
2441 | static int | |
c7f079ca | 2442 | proc_show_pdrv_ch0(struct seq_file *m, void *v) |
1da177e4 | 2443 | { |
c7f079ca | 2444 | return proc_show_pdrv(m, m->private, 0); |
1da177e4 LT |
2445 | } |
2446 | ||
2447 | ||
2448 | /** | |
c7f079ca DH |
2449 | * proc_show_pdrv_ch1() |
2450 | * @m - Synthetic file construction data | |
2451 | * @v - File iterator | |
1da177e4 | 2452 | * |
c7f079ca | 2453 | * Display information about the physical drives on physical channel 1. |
1da177e4 LT |
2454 | */ |
2455 | static int | |
c7f079ca | 2456 | proc_show_pdrv_ch1(struct seq_file *m, void *v) |
1da177e4 | 2457 | { |
c7f079ca | 2458 | return proc_show_pdrv(m, m->private, 1); |
1da177e4 LT |
2459 | } |
2460 | ||
2461 | ||
2462 | /** | |
c7f079ca DH |
2463 | * proc_show_pdrv_ch2() |
2464 | * @m - Synthetic file construction data | |
2465 | * @v - File iterator | |
1da177e4 | 2466 | * |
c7f079ca | 2467 | * Display information about the physical drives on physical channel 2. |
1da177e4 LT |
2468 | */ |
2469 | static int | |
c7f079ca | 2470 | proc_show_pdrv_ch2(struct seq_file *m, void *v) |
1da177e4 | 2471 | { |
c7f079ca | 2472 | return proc_show_pdrv(m, m->private, 2); |
1da177e4 LT |
2473 | } |
2474 | ||
2475 | ||
2476 | /** | |
c7f079ca DH |
2477 | * proc_show_pdrv_ch3() |
2478 | * @m - Synthetic file construction data | |
2479 | * @v - File iterator | |
1da177e4 | 2480 | * |
c7f079ca | 2481 | * Display information about the physical drives on physical channel 3. |
1da177e4 LT |
2482 | */ |
2483 | static int | |
c7f079ca | 2484 | proc_show_pdrv_ch3(struct seq_file *m, void *v) |
1da177e4 | 2485 | { |
c7f079ca | 2486 | return proc_show_pdrv(m, m->private, 3); |
1da177e4 LT |
2487 | } |
2488 | ||
2489 | ||
2490 | /** | |
c7f079ca DH |
2491 | * proc_show_rdrv() |
2492 | * @m - Synthetic file construction data | |
1da177e4 LT |
2493 | * @adapter - pointer to our soft state |
2494 | * @start - starting logical drive to display | |
2495 | * @end - ending logical drive to display | |
2496 | * | |
2497 | * We do not print the inquiry information since its already available through | |
2498 | * /proc/scsi/scsi interface | |
2499 | */ | |
2500 | static int | |
c7f079ca | 2501 | proc_show_rdrv(struct seq_file *m, adapter_t *adapter, int start, int end ) |
1da177e4 LT |
2502 | { |
2503 | dma_addr_t dma_handle; | |
2504 | logdrv_param *lparam; | |
2505 | megacmd_t mc; | |
2506 | char *disk_array; | |
2507 | dma_addr_t disk_array_dma_handle; | |
2508 | caddr_t inquiry; | |
2509 | struct pci_dev *pdev; | |
2510 | u8 *rdrv_state; | |
2511 | int num_ldrv; | |
2512 | u32 array_sz; | |
1da177e4 LT |
2513 | int i; |
2514 | ||
c7f079ca DH |
2515 | if( make_local_pdev(adapter, &pdev) != 0 ) |
2516 | return 0; | |
1da177e4 | 2517 | |
c7f079ca DH |
2518 | if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL ) |
2519 | goto free_pdev; | |
1da177e4 LT |
2520 | |
2521 | if( mega_adapinq(adapter, dma_handle) != 0 ) { | |
c7f079ca | 2522 | seq_puts(m, "Adapter inquiry failed.\n"); |
3b8a1ba3 | 2523 | dev_warn(&adapter->dev->dev, "inquiry failed\n"); |
c7f079ca | 2524 | goto free_inquiry; |
1da177e4 LT |
2525 | } |
2526 | ||
2527 | memset(&mc, 0, sizeof(megacmd_t)); | |
2528 | ||
2529 | if( adapter->flag & BOARD_40LD ) { | |
2530 | array_sz = sizeof(disk_array_40ld); | |
2531 | ||
2532 | rdrv_state = ((mega_inquiry3 *)inquiry)->ldrv_state; | |
2533 | ||
2534 | num_ldrv = ((mega_inquiry3 *)inquiry)->num_ldrv; | |
2535 | } | |
2536 | else { | |
2537 | array_sz = sizeof(disk_array_8ld); | |
2538 | ||
2539 | rdrv_state = ((mraid_ext_inquiry *)inquiry)-> | |
2540 | raid_inq.logdrv_info.ldrv_state; | |
2541 | ||
2542 | num_ldrv = ((mraid_ext_inquiry *)inquiry)-> | |
2543 | raid_inq.logdrv_info.num_ldrv; | |
2544 | } | |
2545 | ||
2546 | disk_array = pci_alloc_consistent(pdev, array_sz, | |
2547 | &disk_array_dma_handle); | |
2548 | ||
2549 | if( disk_array == NULL ) { | |
c7f079ca DH |
2550 | seq_puts(m, "memory not available.\n"); |
2551 | goto free_inquiry; | |
1da177e4 LT |
2552 | } |
2553 | ||
2554 | mc.xferaddr = (u32)disk_array_dma_handle; | |
2555 | ||
2556 | if( adapter->flag & BOARD_40LD ) { | |
2557 | mc.cmd = FC_NEW_CONFIG; | |
2558 | mc.opcode = OP_DCMD_READ_CONFIG; | |
2559 | ||
cb0258a2 | 2560 | if( mega_internal_command(adapter, &mc, NULL) ) { |
c7f079ca DH |
2561 | seq_puts(m, "40LD read config failed.\n"); |
2562 | goto free_pci; | |
1da177e4 LT |
2563 | } |
2564 | ||
2565 | } | |
2566 | else { | |
2567 | mc.cmd = NEW_READ_CONFIG_8LD; | |
2568 | ||
cb0258a2 | 2569 | if( mega_internal_command(adapter, &mc, NULL) ) { |
1da177e4 | 2570 | mc.cmd = READ_CONFIG_8LD; |
c7f079ca DH |
2571 | if( mega_internal_command(adapter, &mc, NULL) ) { |
2572 | seq_puts(m, "8LD read config failed.\n"); | |
2573 | goto free_pci; | |
1da177e4 LT |
2574 | } |
2575 | } | |
2576 | } | |
2577 | ||
2578 | for( i = start; i < ( (end+1 < num_ldrv) ? end+1 : num_ldrv ); i++ ) { | |
2579 | ||
2580 | if( adapter->flag & BOARD_40LD ) { | |
2581 | lparam = | |
2582 | &((disk_array_40ld *)disk_array)->ldrv[i].lparam; | |
2583 | } | |
2584 | else { | |
2585 | lparam = | |
2586 | &((disk_array_8ld *)disk_array)->ldrv[i].lparam; | |
2587 | } | |
2588 | ||
2589 | /* | |
2590 | * Check for overflow. We print less than 240 characters for | |
2591 | * information about each logical drive. | |
2592 | */ | |
c7f079ca | 2593 | seq_printf(m, "Logical drive:%2d:, ", i); |
1da177e4 LT |
2594 | |
2595 | switch( rdrv_state[i] & 0x0F ) { | |
2596 | case RDRV_OFFLINE: | |
c7f079ca | 2597 | seq_puts(m, "state: offline"); |
1da177e4 | 2598 | break; |
1da177e4 | 2599 | case RDRV_DEGRADED: |
c7f079ca | 2600 | seq_puts(m, "state: degraded"); |
1da177e4 | 2601 | break; |
1da177e4 | 2602 | case RDRV_OPTIMAL: |
c7f079ca | 2603 | seq_puts(m, "state: optimal"); |
1da177e4 | 2604 | break; |
1da177e4 | 2605 | case RDRV_DELETED: |
c7f079ca | 2606 | seq_puts(m, "state: deleted"); |
1da177e4 | 2607 | break; |
1da177e4 | 2608 | default: |
c7f079ca | 2609 | seq_puts(m, "state: unknown"); |
1da177e4 LT |
2610 | break; |
2611 | } | |
2612 | ||
2613 | /* | |
2614 | * Check if check consistency or initialization is going on | |
2615 | * for this logical drive. | |
2616 | */ | |
c7f079ca DH |
2617 | if( (rdrv_state[i] & 0xF0) == 0x20 ) |
2618 | seq_puts(m, ", check-consistency in progress"); | |
2619 | else if( (rdrv_state[i] & 0xF0) == 0x10 ) | |
2620 | seq_puts(m, ", initialization in progress"); | |
1da177e4 | 2621 | |
c7f079ca | 2622 | seq_putc(m, '\n'); |
1da177e4 | 2623 | |
c7f079ca DH |
2624 | seq_printf(m, "Span depth:%3d, ", lparam->span_depth); |
2625 | seq_printf(m, "RAID level:%3d, ", lparam->level); | |
2626 | seq_printf(m, "Stripe size:%3d, ", | |
2627 | lparam->stripe_sz ? lparam->stripe_sz/2: 128); | |
2628 | seq_printf(m, "Row size:%3d\n", lparam->row_size); | |
1da177e4 | 2629 | |
c7f079ca | 2630 | seq_puts(m, "Read Policy: "); |
1da177e4 | 2631 | switch(lparam->read_ahead) { |
1da177e4 | 2632 | case NO_READ_AHEAD: |
c7f079ca | 2633 | seq_puts(m, "No read ahead, "); |
1da177e4 | 2634 | break; |
1da177e4 | 2635 | case READ_AHEAD: |
c7f079ca | 2636 | seq_puts(m, "Read ahead, "); |
1da177e4 | 2637 | break; |
1da177e4 | 2638 | case ADAP_READ_AHEAD: |
c7f079ca | 2639 | seq_puts(m, "Adaptive, "); |
1da177e4 LT |
2640 | break; |
2641 | ||
2642 | } | |
2643 | ||
c7f079ca | 2644 | seq_puts(m, "Write Policy: "); |
1da177e4 | 2645 | switch(lparam->write_mode) { |
1da177e4 | 2646 | case WRMODE_WRITE_THRU: |
c7f079ca | 2647 | seq_puts(m, "Write thru, "); |
1da177e4 | 2648 | break; |
1da177e4 | 2649 | case WRMODE_WRITE_BACK: |
c7f079ca | 2650 | seq_puts(m, "Write back, "); |
1da177e4 LT |
2651 | break; |
2652 | } | |
2653 | ||
c7f079ca | 2654 | seq_puts(m, "Cache Policy: "); |
1da177e4 | 2655 | switch(lparam->direct_io) { |
1da177e4 | 2656 | case CACHED_IO: |
c7f079ca | 2657 | seq_puts(m, "Cached IO\n\n"); |
1da177e4 | 2658 | break; |
1da177e4 | 2659 | case DIRECT_IO: |
c7f079ca | 2660 | seq_puts(m, "Direct IO\n\n"); |
1da177e4 LT |
2661 | break; |
2662 | } | |
2663 | } | |
2664 | ||
c7f079ca | 2665 | free_pci: |
1da177e4 LT |
2666 | pci_free_consistent(pdev, array_sz, disk_array, |
2667 | disk_array_dma_handle); | |
c7f079ca DH |
2668 | free_inquiry: |
2669 | mega_free_inquiry(inquiry, dma_handle, pdev); | |
2670 | free_pdev: | |
1da177e4 | 2671 | free_local_pdev(pdev); |
c7f079ca DH |
2672 | return 0; |
2673 | } | |
1da177e4 | 2674 | |
c7f079ca DH |
2675 | /** |
2676 | * proc_show_rdrv_10() | |
2677 | * @m - Synthetic file construction data | |
2678 | * @v - File iterator | |
2679 | * | |
2680 | * Display real time information about the logical drives 0 through 9. | |
2681 | */ | |
2682 | static int | |
2683 | proc_show_rdrv_10(struct seq_file *m, void *v) | |
2684 | { | |
2685 | return proc_show_rdrv(m, m->private, 0, 9); | |
1da177e4 | 2686 | } |
c7f079ca DH |
2687 | |
2688 | ||
2689 | /** | |
2690 | * proc_show_rdrv_20() | |
2691 | * @m - Synthetic file construction data | |
2692 | * @v - File iterator | |
2693 | * | |
2694 | * Display real time information about the logical drives 0 through 9. | |
2695 | */ | |
2696 | static int | |
2697 | proc_show_rdrv_20(struct seq_file *m, void *v) | |
2698 | { | |
2699 | return proc_show_rdrv(m, m->private, 10, 19); | |
2700 | } | |
2701 | ||
2702 | ||
2703 | /** | |
2704 | * proc_show_rdrv_30() | |
2705 | * @m - Synthetic file construction data | |
2706 | * @v - File iterator | |
2707 | * | |
2708 | * Display real time information about the logical drives 0 through 9. | |
2709 | */ | |
2710 | static int | |
2711 | proc_show_rdrv_30(struct seq_file *m, void *v) | |
2712 | { | |
2713 | return proc_show_rdrv(m, m->private, 20, 29); | |
2714 | } | |
2715 | ||
2716 | ||
2717 | /** | |
2718 | * proc_show_rdrv_40() | |
2719 | * @m - Synthetic file construction data | |
2720 | * @v - File iterator | |
2721 | * | |
2722 | * Display real time information about the logical drives 0 through 9. | |
2723 | */ | |
2724 | static int | |
2725 | proc_show_rdrv_40(struct seq_file *m, void *v) | |
2726 | { | |
2727 | return proc_show_rdrv(m, m->private, 30, 39); | |
2728 | } | |
2729 | ||
c7f079ca DH |
2730 | /** |
2731 | * mega_create_proc_entry() | |
2732 | * @index - index in soft state array | |
2733 | * @parent - parent node for this /proc entry | |
2734 | * | |
2735 | * Creates /proc entries for our controllers. | |
2736 | */ | |
2737 | static void | |
2738 | mega_create_proc_entry(int index, struct proc_dir_entry *parent) | |
2739 | { | |
f7680bec CH |
2740 | adapter_t *adapter = hba_soft_state[index]; |
2741 | struct proc_dir_entry *dir; | |
2742 | u8 string[16]; | |
c7f079ca DH |
2743 | |
2744 | sprintf(string, "hba%d", adapter->host->host_no); | |
f7680bec CH |
2745 | dir = proc_mkdir_data(string, 0, parent, adapter); |
2746 | if (!dir) { | |
3b8a1ba3 | 2747 | dev_warn(&adapter->dev->dev, "proc_mkdir failed\n"); |
c7f079ca DH |
2748 | return; |
2749 | } | |
c7f079ca | 2750 | |
f7680bec CH |
2751 | proc_create_single_data("config", S_IRUSR, dir, |
2752 | proc_show_config, adapter); | |
2753 | proc_create_single_data("stat", S_IRUSR, dir, | |
2754 | proc_show_stat, adapter); | |
2755 | proc_create_single_data("mailbox", S_IRUSR, dir, | |
2756 | proc_show_mbox, adapter); | |
2757 | #if MEGA_HAVE_ENH_PROC | |
2758 | proc_create_single_data("rebuild-rate", S_IRUSR, dir, | |
2759 | proc_show_rebuild_rate, adapter); | |
2760 | proc_create_single_data("battery-status", S_IRUSR, dir, | |
2761 | proc_show_battery, adapter); | |
2762 | proc_create_single_data("diskdrives-ch0", S_IRUSR, dir, | |
2763 | proc_show_pdrv_ch0, adapter); | |
2764 | proc_create_single_data("diskdrives-ch1", S_IRUSR, dir, | |
2765 | proc_show_pdrv_ch1, adapter); | |
2766 | proc_create_single_data("diskdrives-ch2", S_IRUSR, dir, | |
2767 | proc_show_pdrv_ch2, adapter); | |
2768 | proc_create_single_data("diskdrives-ch3", S_IRUSR, dir, | |
2769 | proc_show_pdrv_ch3, adapter); | |
2770 | proc_create_single_data("raiddrives-0-9", S_IRUSR, dir, | |
2771 | proc_show_rdrv_10, adapter); | |
2772 | proc_create_single_data("raiddrives-10-19", S_IRUSR, dir, | |
2773 | proc_show_rdrv_20, adapter); | |
2774 | proc_create_single_data("raiddrives-20-29", S_IRUSR, dir, | |
2775 | proc_show_rdrv_30, adapter); | |
2776 | proc_create_single_data("raiddrives-30-39", S_IRUSR, dir, | |
2777 | proc_show_rdrv_40, adapter); | |
2778 | #endif | |
c7f079ca DH |
2779 | } |
2780 | ||
84a3c97b | 2781 | #else |
2782 | static inline void mega_create_proc_entry(int index, struct proc_dir_entry *parent) | |
2783 | { | |
2784 | } | |
1da177e4 LT |
2785 | #endif |
2786 | ||
2787 | ||
2788 | /** | |
2789 | * megaraid_biosparam() | |
2790 | * | |
2791 | * Return the disk geometry for a particular disk | |
2792 | */ | |
2793 | static int | |
2794 | megaraid_biosparam(struct scsi_device *sdev, struct block_device *bdev, | |
2795 | sector_t capacity, int geom[]) | |
2796 | { | |
2797 | adapter_t *adapter; | |
1da177e4 LT |
2798 | int heads; |
2799 | int sectors; | |
2800 | int cylinders; | |
1da177e4 LT |
2801 | |
2802 | /* Get pointer to host config structure */ | |
2803 | adapter = (adapter_t *)sdev->host->hostdata; | |
2804 | ||
2805 | if (IS_RAID_CH(adapter, sdev->channel)) { | |
2806 | /* Default heads (64) & sectors (32) */ | |
2807 | heads = 64; | |
2808 | sectors = 32; | |
2809 | cylinders = (ulong)capacity / (heads * sectors); | |
2810 | ||
2811 | /* | |
2812 | * Handle extended translation size for logical drives | |
2813 | * > 1Gb | |
2814 | */ | |
2815 | if ((ulong)capacity >= 0x200000) { | |
2816 | heads = 255; | |
2817 | sectors = 63; | |
2818 | cylinders = (ulong)capacity / (heads * sectors); | |
2819 | } | |
2820 | ||
2821 | /* return result */ | |
2822 | geom[0] = heads; | |
2823 | geom[1] = sectors; | |
2824 | geom[2] = cylinders; | |
2825 | } | |
2826 | else { | |
a10183d7 CH |
2827 | if (scsi_partsize(bdev, capacity, geom)) |
2828 | return 0; | |
1da177e4 | 2829 | |
3b8a1ba3 BH |
2830 | dev_info(&adapter->dev->dev, |
2831 | "invalid partition on this disk on channel %d\n", | |
2832 | sdev->channel); | |
1da177e4 LT |
2833 | |
2834 | /* Default heads (64) & sectors (32) */ | |
2835 | heads = 64; | |
2836 | sectors = 32; | |
2837 | cylinders = (ulong)capacity / (heads * sectors); | |
2838 | ||
2839 | /* Handle extended translation size for logical drives > 1Gb */ | |
2840 | if ((ulong)capacity >= 0x200000) { | |
2841 | heads = 255; | |
2842 | sectors = 63; | |
2843 | cylinders = (ulong)capacity / (heads * sectors); | |
2844 | } | |
2845 | ||
2846 | /* return result */ | |
2847 | geom[0] = heads; | |
2848 | geom[1] = sectors; | |
2849 | geom[2] = cylinders; | |
2850 | } | |
2851 | ||
2852 | return 0; | |
2853 | } | |
2854 | ||
2855 | /** | |
2856 | * mega_init_scb() | |
2857 | * @adapter - pointer to our soft state | |
2858 | * | |
2859 | * Allocate memory for the various pointers in the scb structures: | |
2860 | * scatter-gather list pointer, passthru and extended passthru structure | |
2861 | * pointers. | |
2862 | */ | |
2863 | static int | |
2864 | mega_init_scb(adapter_t *adapter) | |
2865 | { | |
2866 | scb_t *scb; | |
2867 | int i; | |
2868 | ||
2869 | for( i = 0; i < adapter->max_cmds; i++ ) { | |
2870 | ||
2871 | scb = &adapter->scb_list[i]; | |
2872 | ||
2873 | scb->sgl64 = NULL; | |
2874 | scb->sgl = NULL; | |
2875 | scb->pthru = NULL; | |
2876 | scb->epthru = NULL; | |
2877 | } | |
2878 | ||
2879 | for( i = 0; i < adapter->max_cmds; i++ ) { | |
2880 | ||
2881 | scb = &adapter->scb_list[i]; | |
2882 | ||
2883 | scb->idx = i; | |
2884 | ||
2885 | scb->sgl64 = pci_alloc_consistent(adapter->dev, | |
2886 | sizeof(mega_sgl64) * adapter->sglen, | |
2887 | &scb->sgl_dma_addr); | |
2888 | ||
2889 | scb->sgl = (mega_sglist *)scb->sgl64; | |
2890 | ||
2891 | if( !scb->sgl ) { | |
3b8a1ba3 | 2892 | dev_warn(&adapter->dev->dev, "RAID: Can't allocate sglist\n"); |
1da177e4 LT |
2893 | mega_free_sgl(adapter); |
2894 | return -1; | |
2895 | } | |
2896 | ||
2897 | scb->pthru = pci_alloc_consistent(adapter->dev, | |
2898 | sizeof(mega_passthru), | |
2899 | &scb->pthru_dma_addr); | |
2900 | ||
2901 | if( !scb->pthru ) { | |
3b8a1ba3 | 2902 | dev_warn(&adapter->dev->dev, "RAID: Can't allocate passthru\n"); |
1da177e4 LT |
2903 | mega_free_sgl(adapter); |
2904 | return -1; | |
2905 | } | |
2906 | ||
2907 | scb->epthru = pci_alloc_consistent(adapter->dev, | |
2908 | sizeof(mega_ext_passthru), | |
2909 | &scb->epthru_dma_addr); | |
2910 | ||
2911 | if( !scb->epthru ) { | |
3b8a1ba3 BH |
2912 | dev_warn(&adapter->dev->dev, |
2913 | "Can't allocate extended passthru\n"); | |
1da177e4 LT |
2914 | mega_free_sgl(adapter); |
2915 | return -1; | |
2916 | } | |
2917 | ||
2918 | ||
2919 | scb->dma_type = MEGA_DMA_TYPE_NONE; | |
2920 | ||
2921 | /* | |
2922 | * Link to free list | |
2923 | * lock not required since we are loading the driver, so no | |
2924 | * commands possible right now. | |
2925 | */ | |
2926 | scb->state = SCB_FREE; | |
2927 | scb->cmd = NULL; | |
2928 | list_add(&scb->list, &adapter->free_list); | |
2929 | } | |
2930 | ||
2931 | return 0; | |
2932 | } | |
2933 | ||
2934 | ||
2935 | /** | |
2936 | * megadev_open() | |
2937 | * @inode - unused | |
2938 | * @filep - unused | |
2939 | * | |
2940 | * Routines for the character/ioctl interface to the driver. Find out if this | |
d21c95c5 | 2941 | * is a valid open. |
1da177e4 LT |
2942 | */ |
2943 | static int | |
2944 | megadev_open (struct inode *inode, struct file *filep) | |
2945 | { | |
2946 | /* | |
2947 | * Only allow superuser to access private ioctl interface | |
2948 | */ | |
2949 | if( !capable(CAP_SYS_ADMIN) ) return -EACCES; | |
2950 | ||
2951 | return 0; | |
2952 | } | |
2953 | ||
2954 | ||
2955 | /** | |
2956 | * megadev_ioctl() | |
2957 | * @inode - Our device inode | |
2958 | * @filep - unused | |
2959 | * @cmd - ioctl command | |
2960 | * @arg - user buffer | |
2961 | * | |
2962 | * ioctl entry point for our private ioctl interface. We move the data in from | |
2963 | * the user space, prepare the command (if necessary, convert the old MIMD | |
2964 | * ioctl to new ioctl command), and issue a synchronous command to the | |
2965 | * controller. | |
2966 | */ | |
2967 | static int | |
f4927c45 | 2968 | megadev_ioctl(struct file *filep, unsigned int cmd, unsigned long arg) |
1da177e4 LT |
2969 | { |
2970 | adapter_t *adapter; | |
2971 | nitioctl_t uioc; | |
2972 | int adapno; | |
2973 | int rval; | |
2974 | mega_passthru __user *upthru; /* user address for passthru */ | |
2975 | mega_passthru *pthru; /* copy user passthru here */ | |
2976 | dma_addr_t pthru_dma_hndl; | |
2977 | void *data = NULL; /* data to be transferred */ | |
2978 | dma_addr_t data_dma_hndl; /* dma handle for data xfer area */ | |
2979 | megacmd_t mc; | |
2980 | megastat_t __user *ustats; | |
2981 | int num_ldrv; | |
2982 | u32 uxferaddr = 0; | |
2983 | struct pci_dev *pdev; | |
2984 | ||
2985 | ustats = NULL; /* avoid compilation warnings */ | |
2986 | num_ldrv = 0; | |
2987 | ||
2988 | /* | |
2989 | * Make sure only USCSICMD are issued through this interface. | |
2990 | * MIMD application would still fire different command. | |
2991 | */ | |
2992 | if( (_IOC_TYPE(cmd) != MEGAIOC_MAGIC) && (cmd != USCSICMD) ) { | |
2993 | return -EINVAL; | |
2994 | } | |
2995 | ||
2996 | /* | |
2997 | * Check and convert a possible MIMD command to NIT command. | |
2998 | * mega_m_to_n() copies the data from the user space, so we do not | |
2999 | * have to do it here. | |
3000 | * NOTE: We will need some user address to copyout the data, therefore | |
3001 | * the inteface layer will also provide us with the required user | |
3002 | * addresses. | |
3003 | */ | |
3004 | memset(&uioc, 0, sizeof(nitioctl_t)); | |
3005 | if( (rval = mega_m_to_n( (void __user *)arg, &uioc)) != 0 ) | |
3006 | return rval; | |
3007 | ||
3008 | ||
3009 | switch( uioc.opcode ) { | |
3010 | ||
3011 | case GET_DRIVER_VER: | |
3012 | if( put_user(driver_ver, (u32 __user *)uioc.uioc_uaddr) ) | |
3013 | return (-EFAULT); | |
3014 | ||
3015 | break; | |
3016 | ||
3017 | case GET_N_ADAP: | |
3018 | if( put_user(hba_count, (u32 __user *)uioc.uioc_uaddr) ) | |
3019 | return (-EFAULT); | |
3020 | ||
3021 | /* | |
3022 | * Shucks. MIMD interface returns a positive value for number | |
3023 | * of adapters. TODO: Change it to return 0 when there is no | |
3024 | * applicatio using mimd interface. | |
3025 | */ | |
3026 | return hba_count; | |
3027 | ||
3028 | case GET_ADAP_INFO: | |
3029 | ||
3030 | /* | |
3031 | * Which adapter | |
3032 | */ | |
3033 | if( (adapno = GETADAP(uioc.adapno)) >= hba_count ) | |
3034 | return (-ENODEV); | |
3035 | ||
3036 | if( copy_to_user(uioc.uioc_uaddr, mcontroller+adapno, | |
3037 | sizeof(struct mcontroller)) ) | |
3038 | return (-EFAULT); | |
3039 | break; | |
3040 | ||
3041 | #if MEGA_HAVE_STATS | |
3042 | ||
3043 | case GET_STATS: | |
3044 | /* | |
3045 | * Which adapter | |
3046 | */ | |
3047 | if( (adapno = GETADAP(uioc.adapno)) >= hba_count ) | |
3048 | return (-ENODEV); | |
3049 | ||
3050 | adapter = hba_soft_state[adapno]; | |
3051 | ||
3052 | ustats = uioc.uioc_uaddr; | |
3053 | ||
3054 | if( copy_from_user(&num_ldrv, &ustats->num_ldrv, sizeof(int)) ) | |
3055 | return (-EFAULT); | |
3056 | ||
3057 | /* | |
3058 | * Check for the validity of the logical drive number | |
3059 | */ | |
3060 | if( num_ldrv >= MAX_LOGICAL_DRIVES_40LD ) return -EINVAL; | |
3061 | ||
3062 | if( copy_to_user(ustats->nreads, adapter->nreads, | |
3063 | num_ldrv*sizeof(u32)) ) | |
3064 | return -EFAULT; | |
3065 | ||
3066 | if( copy_to_user(ustats->nreadblocks, adapter->nreadblocks, | |
3067 | num_ldrv*sizeof(u32)) ) | |
3068 | return -EFAULT; | |
3069 | ||
3070 | if( copy_to_user(ustats->nwrites, adapter->nwrites, | |
3071 | num_ldrv*sizeof(u32)) ) | |
3072 | return -EFAULT; | |
3073 | ||
3074 | if( copy_to_user(ustats->nwriteblocks, adapter->nwriteblocks, | |
3075 | num_ldrv*sizeof(u32)) ) | |
3076 | return -EFAULT; | |
3077 | ||
3078 | if( copy_to_user(ustats->rd_errors, adapter->rd_errors, | |
3079 | num_ldrv*sizeof(u32)) ) | |
3080 | return -EFAULT; | |
3081 | ||
3082 | if( copy_to_user(ustats->wr_errors, adapter->wr_errors, | |
3083 | num_ldrv*sizeof(u32)) ) | |
3084 | return -EFAULT; | |
3085 | ||
3086 | return 0; | |
3087 | ||
3088 | #endif | |
3089 | case MBOX_CMD: | |
3090 | ||
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 | /* | |
3100 | * Deletion of logical drive is a special case. The adapter | |
3101 | * should be quiescent before this command is issued. | |
3102 | */ | |
3103 | if( uioc.uioc_rmbox[0] == FC_DEL_LOGDRV && | |
3104 | uioc.uioc_rmbox[2] == OP_DEL_LOGDRV ) { | |
3105 | ||
3106 | /* | |
3107 | * Do we support this feature | |
3108 | */ | |
3109 | if( !adapter->support_random_del ) { | |
3b8a1ba3 BH |
3110 | dev_warn(&adapter->dev->dev, "logdrv " |
3111 | "delete on non-supporting F/W\n"); | |
1da177e4 LT |
3112 | |
3113 | return (-EINVAL); | |
3114 | } | |
3115 | ||
3116 | rval = mega_del_logdrv( adapter, uioc.uioc_rmbox[3] ); | |
3117 | ||
3118 | if( rval == 0 ) { | |
3119 | memset(&mc, 0, sizeof(megacmd_t)); | |
3120 | ||
3121 | mc.status = rval; | |
3122 | ||
3123 | rval = mega_n_to_m((void __user *)arg, &mc); | |
3124 | } | |
3125 | ||
3126 | return rval; | |
3127 | } | |
3128 | /* | |
3129 | * This interface only support the regular passthru commands. | |
3130 | * Reject extended passthru and 64-bit passthru | |
3131 | */ | |
3132 | if( uioc.uioc_rmbox[0] == MEGA_MBOXCMD_PASSTHRU64 || | |
3133 | uioc.uioc_rmbox[0] == MEGA_MBOXCMD_EXTPTHRU ) { | |
3134 | ||
3b8a1ba3 | 3135 | dev_warn(&adapter->dev->dev, "rejected passthru\n"); |
1da177e4 LT |
3136 | |
3137 | return (-EINVAL); | |
3138 | } | |
3139 | ||
3140 | /* | |
3141 | * For all internal commands, the buffer must be allocated in | |
3142 | * <4GB address range | |
3143 | */ | |
3144 | if( make_local_pdev(adapter, &pdev) != 0 ) | |
3145 | return -EIO; | |
3146 | ||
3147 | /* Is it a passthru command or a DCMD */ | |
3148 | if( uioc.uioc_rmbox[0] == MEGA_MBOXCMD_PASSTHRU ) { | |
3149 | /* Passthru commands */ | |
3150 | ||
3151 | pthru = pci_alloc_consistent(pdev, | |
3152 | sizeof(mega_passthru), | |
3153 | &pthru_dma_hndl); | |
3154 | ||
3155 | if( pthru == NULL ) { | |
3156 | free_local_pdev(pdev); | |
3157 | return (-ENOMEM); | |
3158 | } | |
3159 | ||
3160 | /* | |
3161 | * The user passthru structure | |
3162 | */ | |
de5952e9 | 3163 | upthru = (mega_passthru __user *)(unsigned long)MBOX(uioc)->xferaddr; |
1da177e4 LT |
3164 | |
3165 | /* | |
3166 | * Copy in the user passthru here. | |
3167 | */ | |
3168 | if( copy_from_user(pthru, upthru, | |
3169 | sizeof(mega_passthru)) ) { | |
3170 | ||
3171 | pci_free_consistent(pdev, | |
3172 | sizeof(mega_passthru), pthru, | |
3173 | pthru_dma_hndl); | |
3174 | ||
3175 | free_local_pdev(pdev); | |
3176 | ||
3177 | return (-EFAULT); | |
3178 | } | |
3179 | ||
3180 | /* | |
3181 | * Is there a data transfer | |
3182 | */ | |
3183 | if( pthru->dataxferlen ) { | |
3184 | data = pci_alloc_consistent(pdev, | |
3185 | pthru->dataxferlen, | |
3186 | &data_dma_hndl); | |
3187 | ||
3188 | if( data == NULL ) { | |
3189 | pci_free_consistent(pdev, | |
3190 | sizeof(mega_passthru), | |
3191 | pthru, | |
3192 | pthru_dma_hndl); | |
3193 | ||
3194 | free_local_pdev(pdev); | |
3195 | ||
3196 | return (-ENOMEM); | |
3197 | } | |
3198 | ||
3199 | /* | |
3200 | * Save the user address and point the kernel | |
3201 | * address at just allocated memory | |
3202 | */ | |
3203 | uxferaddr = pthru->dataxferaddr; | |
3204 | pthru->dataxferaddr = data_dma_hndl; | |
3205 | } | |
3206 | ||
3207 | ||
3208 | /* | |
3209 | * Is data coming down-stream | |
3210 | */ | |
3211 | if( pthru->dataxferlen && (uioc.flags & UIOC_WR) ) { | |
3212 | /* | |
3213 | * Get the user data | |
3214 | */ | |
de5952e9 | 3215 | if( copy_from_user(data, (char __user *)(unsigned long) uxferaddr, |
1da177e4 LT |
3216 | pthru->dataxferlen) ) { |
3217 | rval = (-EFAULT); | |
3218 | goto freemem_and_return; | |
3219 | } | |
3220 | } | |
3221 | ||
3222 | memset(&mc, 0, sizeof(megacmd_t)); | |
3223 | ||
3224 | mc.cmd = MEGA_MBOXCMD_PASSTHRU; | |
3225 | mc.xferaddr = (u32)pthru_dma_hndl; | |
3226 | ||
3227 | /* | |
3228 | * Issue the command | |
3229 | */ | |
cb0258a2 | 3230 | mega_internal_command(adapter, &mc, pthru); |
1da177e4 LT |
3231 | |
3232 | rval = mega_n_to_m((void __user *)arg, &mc); | |
3233 | ||
3234 | if( rval ) goto freemem_and_return; | |
3235 | ||
3236 | ||
3237 | /* | |
3238 | * Is data going up-stream | |
3239 | */ | |
3240 | if( pthru->dataxferlen && (uioc.flags & UIOC_RD) ) { | |
de5952e9 | 3241 | if( copy_to_user((char __user *)(unsigned long) uxferaddr, data, |
1da177e4 LT |
3242 | pthru->dataxferlen) ) { |
3243 | rval = (-EFAULT); | |
3244 | } | |
3245 | } | |
3246 | ||
3247 | /* | |
3248 | * Send the request sense data also, irrespective of | |
3249 | * whether the user has asked for it or not. | |
3250 | */ | |
2d2f8d59 JJ |
3251 | if (copy_to_user(upthru->reqsensearea, |
3252 | pthru->reqsensearea, 14)) | |
3253 | rval = -EFAULT; | |
1da177e4 LT |
3254 | |
3255 | freemem_and_return: | |
3256 | if( pthru->dataxferlen ) { | |
3257 | pci_free_consistent(pdev, | |
3258 | pthru->dataxferlen, data, | |
3259 | data_dma_hndl); | |
3260 | } | |
3261 | ||
3262 | pci_free_consistent(pdev, sizeof(mega_passthru), | |
3263 | pthru, pthru_dma_hndl); | |
3264 | ||
3265 | free_local_pdev(pdev); | |
3266 | ||
3267 | return rval; | |
3268 | } | |
3269 | else { | |
3270 | /* DCMD commands */ | |
3271 | ||
3272 | /* | |
3273 | * Is there a data transfer | |
3274 | */ | |
3275 | if( uioc.xferlen ) { | |
3276 | data = pci_alloc_consistent(pdev, | |
3277 | uioc.xferlen, &data_dma_hndl); | |
3278 | ||
3279 | if( data == NULL ) { | |
3280 | free_local_pdev(pdev); | |
3281 | return (-ENOMEM); | |
3282 | } | |
3283 | ||
3284 | uxferaddr = MBOX(uioc)->xferaddr; | |
3285 | } | |
3286 | ||
3287 | /* | |
3288 | * Is data coming down-stream | |
3289 | */ | |
3290 | if( uioc.xferlen && (uioc.flags & UIOC_WR) ) { | |
3291 | /* | |
3292 | * Get the user data | |
3293 | */ | |
de5952e9 | 3294 | if( copy_from_user(data, (char __user *)(unsigned long) uxferaddr, |
1da177e4 LT |
3295 | uioc.xferlen) ) { |
3296 | ||
3297 | pci_free_consistent(pdev, | |
3298 | uioc.xferlen, | |
3299 | data, data_dma_hndl); | |
3300 | ||
3301 | free_local_pdev(pdev); | |
3302 | ||
3303 | return (-EFAULT); | |
3304 | } | |
3305 | } | |
3306 | ||
3307 | memcpy(&mc, MBOX(uioc), sizeof(megacmd_t)); | |
3308 | ||
3309 | mc.xferaddr = (u32)data_dma_hndl; | |
3310 | ||
3311 | /* | |
3312 | * Issue the command | |
3313 | */ | |
cb0258a2 | 3314 | mega_internal_command(adapter, &mc, NULL); |
1da177e4 LT |
3315 | |
3316 | rval = mega_n_to_m((void __user *)arg, &mc); | |
3317 | ||
3318 | if( rval ) { | |
3319 | if( uioc.xferlen ) { | |
3320 | pci_free_consistent(pdev, | |
3321 | uioc.xferlen, data, | |
3322 | data_dma_hndl); | |
3323 | } | |
3324 | ||
3325 | free_local_pdev(pdev); | |
3326 | ||
3327 | return rval; | |
3328 | } | |
3329 | ||
3330 | /* | |
3331 | * Is data going up-stream | |
3332 | */ | |
3333 | if( uioc.xferlen && (uioc.flags & UIOC_RD) ) { | |
de5952e9 | 3334 | if( copy_to_user((char __user *)(unsigned long) uxferaddr, data, |
1da177e4 LT |
3335 | uioc.xferlen) ) { |
3336 | ||
3337 | rval = (-EFAULT); | |
3338 | } | |
3339 | } | |
3340 | ||
3341 | if( uioc.xferlen ) { | |
3342 | pci_free_consistent(pdev, | |
3343 | uioc.xferlen, data, | |
3344 | data_dma_hndl); | |
3345 | } | |
3346 | ||
3347 | free_local_pdev(pdev); | |
3348 | ||
3349 | return rval; | |
3350 | } | |
3351 | ||
3352 | default: | |
3353 | return (-EINVAL); | |
3354 | } | |
3355 | ||
3356 | return 0; | |
3357 | } | |
3358 | ||
f4927c45 AB |
3359 | static long |
3360 | megadev_unlocked_ioctl(struct file *filep, unsigned int cmd, unsigned long arg) | |
3361 | { | |
3362 | int ret; | |
3363 | ||
c45d15d2 | 3364 | mutex_lock(&megadev_mutex); |
f4927c45 | 3365 | ret = megadev_ioctl(filep, cmd, arg); |
c45d15d2 | 3366 | mutex_unlock(&megadev_mutex); |
f4927c45 AB |
3367 | |
3368 | return ret; | |
3369 | } | |
3370 | ||
1da177e4 LT |
3371 | /** |
3372 | * mega_m_to_n() | |
3373 | * @arg - user address | |
3374 | * @uioc - new ioctl structure | |
3375 | * | |
3376 | * A thin layer to convert older mimd interface ioctl structure to NIT ioctl | |
3377 | * structure | |
3378 | * | |
3379 | * Converts the older mimd ioctl structure to newer NIT structure | |
3380 | */ | |
3381 | static int | |
3382 | mega_m_to_n(void __user *arg, nitioctl_t *uioc) | |
3383 | { | |
3384 | struct uioctl_t uioc_mimd; | |
3385 | char signature[8] = {0}; | |
3386 | u8 opcode; | |
3387 | u8 subopcode; | |
3388 | ||
3389 | ||
3390 | /* | |
3391 | * check is the application conforms to NIT. We do not have to do much | |
3392 | * in that case. | |
3393 | * We exploit the fact that the signature is stored in the very | |
25985edc | 3394 | * beginning of the structure. |
1da177e4 LT |
3395 | */ |
3396 | ||
3397 | if( copy_from_user(signature, arg, 7) ) | |
3398 | return (-EFAULT); | |
3399 | ||
3400 | if( memcmp(signature, "MEGANIT", 7) == 0 ) { | |
3401 | ||
3402 | /* | |
3403 | * NOTE NOTE: The nit ioctl is still under flux because of | |
3404 | * change of mailbox definition, in HPE. No applications yet | |
3405 | * use this interface and let's not have applications use this | |
3406 | * interface till the new specifitions are in place. | |
3407 | */ | |
3408 | return -EINVAL; | |
3409 | #if 0 | |
3410 | if( copy_from_user(uioc, arg, sizeof(nitioctl_t)) ) | |
3411 | return (-EFAULT); | |
3412 | return 0; | |
3413 | #endif | |
3414 | } | |
3415 | ||
3416 | /* | |
3417 | * Else assume we have mimd uioctl_t as arg. Convert to nitioctl_t | |
3418 | * | |
3419 | * Get the user ioctl structure | |
3420 | */ | |
3421 | if( copy_from_user(&uioc_mimd, arg, sizeof(struct uioctl_t)) ) | |
3422 | return (-EFAULT); | |
3423 | ||
3424 | ||
3425 | /* | |
3426 | * Get the opcode and subopcode for the commands | |
3427 | */ | |
3428 | opcode = uioc_mimd.ui.fcs.opcode; | |
3429 | subopcode = uioc_mimd.ui.fcs.subopcode; | |
3430 | ||
3431 | switch (opcode) { | |
3432 | case 0x82: | |
3433 | ||
3434 | switch (subopcode) { | |
3435 | ||
3436 | case MEGAIOC_QDRVRVER: /* Query driver version */ | |
3437 | uioc->opcode = GET_DRIVER_VER; | |
3438 | uioc->uioc_uaddr = uioc_mimd.data; | |
3439 | break; | |
3440 | ||
3441 | case MEGAIOC_QNADAP: /* Get # of adapters */ | |
3442 | uioc->opcode = GET_N_ADAP; | |
3443 | uioc->uioc_uaddr = uioc_mimd.data; | |
3444 | break; | |
3445 | ||
3446 | case MEGAIOC_QADAPINFO: /* Get adapter information */ | |
3447 | uioc->opcode = GET_ADAP_INFO; | |
3448 | uioc->adapno = uioc_mimd.ui.fcs.adapno; | |
3449 | uioc->uioc_uaddr = uioc_mimd.data; | |
3450 | break; | |
3451 | ||
3452 | default: | |
3453 | return(-EINVAL); | |
3454 | } | |
3455 | ||
3456 | break; | |
3457 | ||
3458 | ||
3459 | case 0x81: | |
3460 | ||
3461 | uioc->opcode = MBOX_CMD; | |
3462 | uioc->adapno = uioc_mimd.ui.fcs.adapno; | |
3463 | ||
3464 | memcpy(uioc->uioc_rmbox, uioc_mimd.mbox, 18); | |
3465 | ||
3466 | uioc->xferlen = uioc_mimd.ui.fcs.length; | |
3467 | ||
3468 | if( uioc_mimd.outlen ) uioc->flags = UIOC_RD; | |
3469 | if( uioc_mimd.inlen ) uioc->flags |= UIOC_WR; | |
3470 | ||
3471 | break; | |
3472 | ||
3473 | case 0x80: | |
3474 | ||
3475 | uioc->opcode = MBOX_CMD; | |
3476 | uioc->adapno = uioc_mimd.ui.fcs.adapno; | |
3477 | ||
3478 | memcpy(uioc->uioc_rmbox, uioc_mimd.mbox, 18); | |
3479 | ||
3480 | /* | |
3481 | * Choose the xferlen bigger of input and output data | |
3482 | */ | |
3483 | uioc->xferlen = uioc_mimd.outlen > uioc_mimd.inlen ? | |
3484 | uioc_mimd.outlen : uioc_mimd.inlen; | |
3485 | ||
3486 | if( uioc_mimd.outlen ) uioc->flags = UIOC_RD; | |
3487 | if( uioc_mimd.inlen ) uioc->flags |= UIOC_WR; | |
3488 | ||
3489 | break; | |
3490 | ||
3491 | default: | |
3492 | return (-EINVAL); | |
3493 | ||
3494 | } | |
3495 | ||
3496 | return 0; | |
3497 | } | |
3498 | ||
3499 | /* | |
3500 | * mega_n_to_m() | |
3501 | * @arg - user address | |
3502 | * @mc - mailbox command | |
3503 | * | |
3504 | * Updates the status information to the application, depending on application | |
3505 | * conforms to older mimd ioctl interface or newer NIT ioctl interface | |
3506 | */ | |
3507 | static int | |
3508 | mega_n_to_m(void __user *arg, megacmd_t *mc) | |
3509 | { | |
3510 | nitioctl_t __user *uiocp; | |
3511 | megacmd_t __user *umc; | |
3512 | mega_passthru __user *upthru; | |
3513 | struct uioctl_t __user *uioc_mimd; | |
3514 | char signature[8] = {0}; | |
3515 | ||
3516 | /* | |
3517 | * check is the application conforms to NIT. | |
3518 | */ | |
3519 | if( copy_from_user(signature, arg, 7) ) | |
3520 | return -EFAULT; | |
3521 | ||
3522 | if( memcmp(signature, "MEGANIT", 7) == 0 ) { | |
3523 | ||
3524 | uiocp = arg; | |
3525 | ||
3526 | if( put_user(mc->status, (u8 __user *)&MBOX_P(uiocp)->status) ) | |
3527 | return (-EFAULT); | |
3528 | ||
3529 | if( mc->cmd == MEGA_MBOXCMD_PASSTHRU ) { | |
3530 | ||
3531 | umc = MBOX_P(uiocp); | |
3532 | ||
3533 | if (get_user(upthru, (mega_passthru __user * __user *)&umc->xferaddr)) | |
3534 | return -EFAULT; | |
3535 | ||
3536 | if( put_user(mc->status, (u8 __user *)&upthru->scsistatus)) | |
3537 | return (-EFAULT); | |
3538 | } | |
3539 | } | |
3540 | else { | |
3541 | uioc_mimd = arg; | |
3542 | ||
3543 | if( put_user(mc->status, (u8 __user *)&uioc_mimd->mbox[17]) ) | |
3544 | return (-EFAULT); | |
3545 | ||
3546 | if( mc->cmd == MEGA_MBOXCMD_PASSTHRU ) { | |
3547 | ||
3548 | umc = (megacmd_t __user *)uioc_mimd->mbox; | |
3549 | ||
3550 | if (get_user(upthru, (mega_passthru __user * __user *)&umc->xferaddr)) | |
3551 | return (-EFAULT); | |
3552 | ||
3553 | if( put_user(mc->status, (u8 __user *)&upthru->scsistatus) ) | |
3554 | return (-EFAULT); | |
3555 | } | |
3556 | } | |
3557 | ||
3558 | return 0; | |
3559 | } | |
3560 | ||
3561 | ||
3562 | /* | |
3563 | * MEGARAID 'FW' commands. | |
3564 | */ | |
3565 | ||
3566 | /** | |
3567 | * mega_is_bios_enabled() | |
3568 | * @adapter - pointer to our soft state | |
3569 | * | |
3570 | * issue command to find out if the BIOS is enabled for this controller | |
3571 | */ | |
3572 | static int | |
3573 | mega_is_bios_enabled(adapter_t *adapter) | |
3574 | { | |
3575 | unsigned char raw_mbox[sizeof(struct mbox_out)]; | |
3576 | mbox_t *mbox; | |
3577 | int ret; | |
3578 | ||
3579 | mbox = (mbox_t *)raw_mbox; | |
3580 | ||
3581 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); | |
3582 | ||
3583 | memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE); | |
3584 | ||
3585 | mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle; | |
3586 | ||
3587 | raw_mbox[0] = IS_BIOS_ENABLED; | |
3588 | raw_mbox[2] = GET_BIOS; | |
3589 | ||
3590 | ||
3591 | ret = issue_scb_block(adapter, raw_mbox); | |
3592 | ||
3593 | return *(char *)adapter->mega_buffer; | |
3594 | } | |
3595 | ||
3596 | ||
3597 | /** | |
3598 | * mega_enum_raid_scsi() | |
3599 | * @adapter - pointer to our soft state | |
3600 | * | |
3601 | * Find out what channels are RAID/SCSI. This information is used to | |
3602 | * differentiate the virtual channels and physical channels and to support | |
3603 | * ROMB feature and non-disk devices. | |
3604 | */ | |
3605 | static void | |
3606 | mega_enum_raid_scsi(adapter_t *adapter) | |
3607 | { | |
3608 | unsigned char raw_mbox[sizeof(struct mbox_out)]; | |
3609 | mbox_t *mbox; | |
3610 | int i; | |
3611 | ||
3612 | mbox = (mbox_t *)raw_mbox; | |
3613 | ||
3614 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); | |
3615 | ||
3616 | /* | |
3617 | * issue command to find out what channels are raid/scsi | |
3618 | */ | |
3619 | raw_mbox[0] = CHNL_CLASS; | |
3620 | raw_mbox[2] = GET_CHNL_CLASS; | |
3621 | ||
3622 | memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE); | |
3623 | ||
3624 | mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle; | |
3625 | ||
3626 | /* | |
3627 | * Non-ROMB firmware fail this command, so all channels | |
3628 | * must be shown RAID | |
3629 | */ | |
3630 | adapter->mega_ch_class = 0xFF; | |
3631 | ||
3632 | if(!issue_scb_block(adapter, raw_mbox)) { | |
3633 | adapter->mega_ch_class = *((char *)adapter->mega_buffer); | |
3634 | ||
3635 | } | |
3636 | ||
3637 | for( i = 0; i < adapter->product_info.nchannels; i++ ) { | |
3638 | if( (adapter->mega_ch_class >> i) & 0x01 ) { | |
3b8a1ba3 | 3639 | dev_info(&adapter->dev->dev, "channel[%d] is raid\n", |
1da177e4 LT |
3640 | i); |
3641 | } | |
3642 | else { | |
3b8a1ba3 | 3643 | dev_info(&adapter->dev->dev, "channel[%d] is scsi\n", |
1da177e4 LT |
3644 | i); |
3645 | } | |
3646 | } | |
3647 | ||
3648 | return; | |
3649 | } | |
3650 | ||
3651 | ||
3652 | /** | |
3653 | * mega_get_boot_drv() | |
3654 | * @adapter - pointer to our soft state | |
3655 | * | |
3656 | * Find out which device is the boot device. Note, any logical drive or any | |
3657 | * phyical device (e.g., a CDROM) can be designated as a boot device. | |
3658 | */ | |
3659 | static void | |
3660 | mega_get_boot_drv(adapter_t *adapter) | |
3661 | { | |
3662 | struct private_bios_data *prv_bios_data; | |
3663 | unsigned char raw_mbox[sizeof(struct mbox_out)]; | |
3664 | mbox_t *mbox; | |
3665 | u16 cksum = 0; | |
3666 | u8 *cksum_p; | |
3667 | u8 boot_pdrv; | |
3668 | int i; | |
3669 | ||
3670 | mbox = (mbox_t *)raw_mbox; | |
3671 | ||
3672 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); | |
3673 | ||
3674 | raw_mbox[0] = BIOS_PVT_DATA; | |
3675 | raw_mbox[2] = GET_BIOS_PVT_DATA; | |
3676 | ||
3677 | memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE); | |
3678 | ||
3679 | mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle; | |
3680 | ||
3681 | adapter->boot_ldrv_enabled = 0; | |
3682 | adapter->boot_ldrv = 0; | |
3683 | ||
3684 | adapter->boot_pdrv_enabled = 0; | |
3685 | adapter->boot_pdrv_ch = 0; | |
3686 | adapter->boot_pdrv_tgt = 0; | |
3687 | ||
3688 | if(issue_scb_block(adapter, raw_mbox) == 0) { | |
3689 | prv_bios_data = | |
3690 | (struct private_bios_data *)adapter->mega_buffer; | |
3691 | ||
3692 | cksum = 0; | |
3693 | cksum_p = (char *)prv_bios_data; | |
3694 | for (i = 0; i < 14; i++ ) { | |
3695 | cksum += (u16)(*cksum_p++); | |
3696 | } | |
3697 | ||
3698 | if (prv_bios_data->cksum == (u16)(0-cksum) ) { | |
3699 | ||
3700 | /* | |
3701 | * If MSB is set, a physical drive is set as boot | |
3702 | * device | |
3703 | */ | |
3704 | if( prv_bios_data->boot_drv & 0x80 ) { | |
3705 | adapter->boot_pdrv_enabled = 1; | |
3706 | boot_pdrv = prv_bios_data->boot_drv & 0x7F; | |
3707 | adapter->boot_pdrv_ch = boot_pdrv / 16; | |
3708 | adapter->boot_pdrv_tgt = boot_pdrv % 16; | |
3709 | } | |
3710 | else { | |
3711 | adapter->boot_ldrv_enabled = 1; | |
3712 | adapter->boot_ldrv = prv_bios_data->boot_drv; | |
3713 | } | |
3714 | } | |
3715 | } | |
3716 | ||
3717 | } | |
3718 | ||
3719 | /** | |
3720 | * mega_support_random_del() | |
3721 | * @adapter - pointer to our soft state | |
3722 | * | |
3723 | * Find out if this controller supports random deletion and addition of | |
3724 | * logical drives | |
3725 | */ | |
3726 | static int | |
3727 | mega_support_random_del(adapter_t *adapter) | |
3728 | { | |
3729 | unsigned char raw_mbox[sizeof(struct mbox_out)]; | |
3730 | mbox_t *mbox; | |
3731 | int rval; | |
3732 | ||
3733 | mbox = (mbox_t *)raw_mbox; | |
3734 | ||
3735 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); | |
3736 | ||
3737 | /* | |
3738 | * issue command | |
3739 | */ | |
3740 | raw_mbox[0] = FC_DEL_LOGDRV; | |
3741 | raw_mbox[2] = OP_SUP_DEL_LOGDRV; | |
3742 | ||
3743 | rval = issue_scb_block(adapter, raw_mbox); | |
3744 | ||
3745 | return !rval; | |
3746 | } | |
3747 | ||
3748 | ||
3749 | /** | |
3750 | * mega_support_ext_cdb() | |
3751 | * @adapter - pointer to our soft state | |
3752 | * | |
3753 | * Find out if this firmware support cdblen > 10 | |
3754 | */ | |
3755 | static int | |
3756 | mega_support_ext_cdb(adapter_t *adapter) | |
3757 | { | |
3758 | unsigned char raw_mbox[sizeof(struct mbox_out)]; | |
3759 | mbox_t *mbox; | |
3760 | int rval; | |
3761 | ||
3762 | mbox = (mbox_t *)raw_mbox; | |
3763 | ||
3764 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); | |
3765 | /* | |
3766 | * issue command to find out if controller supports extended CDBs. | |
3767 | */ | |
3768 | raw_mbox[0] = 0xA4; | |
3769 | raw_mbox[2] = 0x16; | |
3770 | ||
3771 | rval = issue_scb_block(adapter, raw_mbox); | |
3772 | ||
3773 | return !rval; | |
3774 | } | |
3775 | ||
3776 | ||
3777 | /** | |
3778 | * mega_del_logdrv() | |
3779 | * @adapter - pointer to our soft state | |
3780 | * @logdrv - logical drive to be deleted | |
3781 | * | |
3782 | * Delete the specified logical drive. It is the responsibility of the user | |
3783 | * app to let the OS know about this operation. | |
3784 | */ | |
3785 | static int | |
3786 | mega_del_logdrv(adapter_t *adapter, int logdrv) | |
3787 | { | |
3788 | unsigned long flags; | |
3789 | scb_t *scb; | |
3790 | int rval; | |
3791 | ||
3792 | /* | |
3793 | * Stop sending commands to the controller, queue them internally. | |
3794 | * When deletion is complete, ISR will flush the queue. | |
3795 | */ | |
3796 | atomic_set(&adapter->quiescent, 1); | |
3797 | ||
3798 | /* | |
3799 | * Wait till all the issued commands are complete and there are no | |
3800 | * commands in the pending queue | |
3801 | */ | |
3802 | while (atomic_read(&adapter->pend_cmds) > 0 || | |
3803 | !list_empty(&adapter->pending_list)) | |
3804 | msleep(1000); /* sleep for 1s */ | |
3805 | ||
3806 | rval = mega_do_del_logdrv(adapter, logdrv); | |
3807 | ||
3808 | spin_lock_irqsave(&adapter->lock, flags); | |
3809 | ||
3810 | /* | |
3811 | * If delete operation was successful, add 0x80 to the logical drive | |
3812 | * ids for commands in the pending queue. | |
3813 | */ | |
3814 | if (adapter->read_ldidmap) { | |
3815 | struct list_head *pos; | |
3816 | list_for_each(pos, &adapter->pending_list) { | |
3817 | scb = list_entry(pos, scb_t, list); | |
3818 | if (scb->pthru->logdrv < 0x80 ) | |
3819 | scb->pthru->logdrv += 0x80; | |
3820 | } | |
3821 | } | |
3822 | ||
3823 | atomic_set(&adapter->quiescent, 0); | |
3824 | ||
3825 | mega_runpendq(adapter); | |
3826 | ||
3827 | spin_unlock_irqrestore(&adapter->lock, flags); | |
3828 | ||
3829 | return rval; | |
3830 | } | |
3831 | ||
3832 | ||
3833 | static int | |
3834 | mega_do_del_logdrv(adapter_t *adapter, int logdrv) | |
3835 | { | |
3836 | megacmd_t mc; | |
3837 | int rval; | |
3838 | ||
3839 | memset( &mc, 0, sizeof(megacmd_t)); | |
3840 | ||
3841 | mc.cmd = FC_DEL_LOGDRV; | |
3842 | mc.opcode = OP_DEL_LOGDRV; | |
3843 | mc.subopcode = logdrv; | |
3844 | ||
cb0258a2 | 3845 | rval = mega_internal_command(adapter, &mc, NULL); |
1da177e4 LT |
3846 | |
3847 | /* log this event */ | |
3848 | if(rval) { | |
3b8a1ba3 | 3849 | dev_warn(&adapter->dev->dev, "Delete LD-%d failed", logdrv); |
1da177e4 LT |
3850 | return rval; |
3851 | } | |
3852 | ||
3853 | /* | |
3854 | * After deleting first logical drive, the logical drives must be | |
3855 | * addressed by adding 0x80 to the logical drive id. | |
3856 | */ | |
3857 | adapter->read_ldidmap = 1; | |
3858 | ||
3859 | return rval; | |
3860 | } | |
3861 | ||
3862 | ||
3863 | /** | |
3864 | * mega_get_max_sgl() | |
3865 | * @adapter - pointer to our soft state | |
3866 | * | |
3867 | * Find out the maximum number of scatter-gather elements supported by this | |
3868 | * version of the firmware | |
3869 | */ | |
3870 | static void | |
3871 | mega_get_max_sgl(adapter_t *adapter) | |
3872 | { | |
3873 | unsigned char raw_mbox[sizeof(struct mbox_out)]; | |
3874 | mbox_t *mbox; | |
3875 | ||
3876 | mbox = (mbox_t *)raw_mbox; | |
3877 | ||
3878 | memset(mbox, 0, sizeof(raw_mbox)); | |
3879 | ||
3880 | memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE); | |
3881 | ||
3882 | mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle; | |
3883 | ||
3884 | raw_mbox[0] = MAIN_MISC_OPCODE; | |
3885 | raw_mbox[2] = GET_MAX_SG_SUPPORT; | |
3886 | ||
3887 | ||
3888 | if( issue_scb_block(adapter, raw_mbox) ) { | |
3889 | /* | |
3890 | * f/w does not support this command. Choose the default value | |
3891 | */ | |
3892 | adapter->sglen = MIN_SGLIST; | |
3893 | } | |
3894 | else { | |
3895 | adapter->sglen = *((char *)adapter->mega_buffer); | |
3896 | ||
3897 | /* | |
3898 | * Make sure this is not more than the resources we are | |
3899 | * planning to allocate | |
3900 | */ | |
3901 | if ( adapter->sglen > MAX_SGLIST ) | |
3902 | adapter->sglen = MAX_SGLIST; | |
3903 | } | |
3904 | ||
3905 | return; | |
3906 | } | |
3907 | ||
3908 | ||
3909 | /** | |
3910 | * mega_support_cluster() | |
3911 | * @adapter - pointer to our soft state | |
3912 | * | |
3913 | * Find out if this firmware support cluster calls. | |
3914 | */ | |
3915 | static int | |
3916 | mega_support_cluster(adapter_t *adapter) | |
3917 | { | |
3918 | unsigned char raw_mbox[sizeof(struct mbox_out)]; | |
3919 | mbox_t *mbox; | |
3920 | ||
3921 | mbox = (mbox_t *)raw_mbox; | |
3922 | ||
3923 | memset(mbox, 0, sizeof(raw_mbox)); | |
3924 | ||
3925 | memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE); | |
3926 | ||
3927 | mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle; | |
3928 | ||
3929 | /* | |
3930 | * Try to get the initiator id. This command will succeed iff the | |
3931 | * clustering is available on this HBA. | |
3932 | */ | |
3933 | raw_mbox[0] = MEGA_GET_TARGET_ID; | |
3934 | ||
3935 | if( issue_scb_block(adapter, raw_mbox) == 0 ) { | |
3936 | ||
3937 | /* | |
3938 | * Cluster support available. Get the initiator target id. | |
3939 | * Tell our id to mid-layer too. | |
3940 | */ | |
3941 | adapter->this_id = *(u32 *)adapter->mega_buffer; | |
3942 | adapter->host->this_id = adapter->this_id; | |
3943 | ||
3944 | return 1; | |
3945 | } | |
3946 | ||
3947 | return 0; | |
3948 | } | |
3949 | ||
84a3c97b | 3950 | #ifdef CONFIG_PROC_FS |
1da177e4 LT |
3951 | /** |
3952 | * mega_adapinq() | |
3953 | * @adapter - pointer to our soft state | |
3954 | * @dma_handle - DMA address of the buffer | |
3955 | * | |
8e572bab | 3956 | * Issue internal commands while interrupts are available. |
1da177e4 LT |
3957 | * We only issue direct mailbox commands from within the driver. ioctl() |
3958 | * interface using these routines can issue passthru commands. | |
3959 | */ | |
3960 | static int | |
3961 | mega_adapinq(adapter_t *adapter, dma_addr_t dma_handle) | |
3962 | { | |
3963 | megacmd_t mc; | |
3964 | ||
3965 | memset(&mc, 0, sizeof(megacmd_t)); | |
3966 | ||
3967 | if( adapter->flag & BOARD_40LD ) { | |
3968 | mc.cmd = FC_NEW_CONFIG; | |
3969 | mc.opcode = NC_SUBOP_ENQUIRY3; | |
3970 | mc.subopcode = ENQ3_GET_SOLICITED_FULL; | |
3971 | } | |
3972 | else { | |
3973 | mc.cmd = MEGA_MBOXCMD_ADPEXTINQ; | |
3974 | } | |
3975 | ||
3976 | mc.xferaddr = (u32)dma_handle; | |
3977 | ||
cb0258a2 | 3978 | if ( mega_internal_command(adapter, &mc, NULL) != 0 ) { |
1da177e4 LT |
3979 | return -1; |
3980 | } | |
3981 | ||
3982 | return 0; | |
3983 | } | |
3984 | ||
3985 | ||
3986 | /** mega_internal_dev_inquiry() | |
3987 | * @adapter - pointer to our soft state | |
3988 | * @ch - channel for this device | |
3989 | * @tgt - ID of this device | |
3990 | * @buf_dma_handle - DMA address of the buffer | |
3991 | * | |
3992 | * Issue the scsi inquiry for the specified device. | |
3993 | */ | |
3994 | static int | |
3995 | mega_internal_dev_inquiry(adapter_t *adapter, u8 ch, u8 tgt, | |
3996 | dma_addr_t buf_dma_handle) | |
3997 | { | |
3998 | mega_passthru *pthru; | |
3999 | dma_addr_t pthru_dma_handle; | |
4000 | megacmd_t mc; | |
4001 | int rval; | |
4002 | struct pci_dev *pdev; | |
4003 | ||
4004 | ||
4005 | /* | |
4006 | * For all internal commands, the buffer must be allocated in <4GB | |
4007 | * address range | |
4008 | */ | |
4009 | if( make_local_pdev(adapter, &pdev) != 0 ) return -1; | |
4010 | ||
4011 | pthru = pci_alloc_consistent(pdev, sizeof(mega_passthru), | |
4012 | &pthru_dma_handle); | |
4013 | ||
4014 | if( pthru == NULL ) { | |
4015 | free_local_pdev(pdev); | |
4016 | return -1; | |
4017 | } | |
4018 | ||
4019 | pthru->timeout = 2; | |
4020 | pthru->ars = 1; | |
4021 | pthru->reqsenselen = 14; | |
4022 | pthru->islogical = 0; | |
4023 | ||
4024 | pthru->channel = (adapter->flag & BOARD_40LD) ? 0 : ch; | |
4025 | ||
4026 | pthru->target = (adapter->flag & BOARD_40LD) ? (ch << 4)|tgt : tgt; | |
4027 | ||
4028 | pthru->cdblen = 6; | |
4029 | ||
4030 | pthru->cdb[0] = INQUIRY; | |
4031 | pthru->cdb[1] = 0; | |
4032 | pthru->cdb[2] = 0; | |
4033 | pthru->cdb[3] = 0; | |
4034 | pthru->cdb[4] = 255; | |
4035 | pthru->cdb[5] = 0; | |
4036 | ||
4037 | ||
4038 | pthru->dataxferaddr = (u32)buf_dma_handle; | |
4039 | pthru->dataxferlen = 256; | |
4040 | ||
4041 | memset(&mc, 0, sizeof(megacmd_t)); | |
4042 | ||
4043 | mc.cmd = MEGA_MBOXCMD_PASSTHRU; | |
4044 | mc.xferaddr = (u32)pthru_dma_handle; | |
4045 | ||
cb0258a2 | 4046 | rval = mega_internal_command(adapter, &mc, pthru); |
1da177e4 LT |
4047 | |
4048 | pci_free_consistent(pdev, sizeof(mega_passthru), pthru, | |
4049 | pthru_dma_handle); | |
4050 | ||
4051 | free_local_pdev(pdev); | |
4052 | ||
4053 | return rval; | |
4054 | } | |
84a3c97b | 4055 | #endif |
1da177e4 LT |
4056 | |
4057 | /** | |
4058 | * mega_internal_command() | |
4059 | * @adapter - pointer to our soft state | |
1da177e4 LT |
4060 | * @mc - the mailbox command |
4061 | * @pthru - Passthru structure for DCDB commands | |
4062 | * | |
4063 | * Issue the internal commands in interrupt mode. | |
4064 | * The last argument is the address of the passthru structure if the command | |
4065 | * to be fired is a passthru command | |
4066 | * | |
1da177e4 LT |
4067 | * Note: parameter 'pthru' is null for non-passthru commands. |
4068 | */ | |
4069 | static int | |
cb0258a2 | 4070 | mega_internal_command(adapter_t *adapter, megacmd_t *mc, mega_passthru *pthru) |
1da177e4 | 4071 | { |
0f2bb84d | 4072 | unsigned long flags; |
1da177e4 LT |
4073 | scb_t *scb; |
4074 | int rval; | |
4075 | ||
4076 | /* | |
4077 | * The internal commands share one command id and hence are | |
4078 | * serialized. This is so because we want to reserve maximum number of | |
4079 | * available command ids for the I/O commands. | |
4080 | */ | |
0b950672 | 4081 | mutex_lock(&adapter->int_mtx); |
1da177e4 LT |
4082 | |
4083 | scb = &adapter->int_scb; | |
4084 | memset(scb, 0, sizeof(scb_t)); | |
4085 | ||
0f2bb84d CH |
4086 | scb->idx = CMDID_INT_CMDS; |
4087 | scb->state |= SCB_ACTIVE | SCB_PENDQ; | |
1da177e4 LT |
4088 | |
4089 | memcpy(scb->raw_mbox, mc, sizeof(megacmd_t)); | |
4090 | ||
4091 | /* | |
4092 | * Is it a passthru command | |
4093 | */ | |
0f2bb84d | 4094 | if (mc->cmd == MEGA_MBOXCMD_PASSTHRU) |
1da177e4 | 4095 | scb->pthru = pthru; |
1da177e4 | 4096 | |
0f2bb84d CH |
4097 | spin_lock_irqsave(&adapter->lock, flags); |
4098 | list_add_tail(&scb->list, &adapter->pending_list); | |
4099 | /* | |
4100 | * Check if the HBA is in quiescent state, e.g., during a | |
4101 | * delete logical drive opertion. If it is, don't run | |
4102 | * the pending_list. | |
4103 | */ | |
4104 | if (atomic_read(&adapter->quiescent) == 0) | |
4105 | mega_runpendq(adapter); | |
4106 | spin_unlock_irqrestore(&adapter->lock, flags); | |
1da177e4 | 4107 | |
8d115f84 | 4108 | wait_for_completion(&adapter->int_waitq); |
1da177e4 | 4109 | |
0f2bb84d | 4110 | mc->status = rval = adapter->int_status; |
1da177e4 LT |
4111 | |
4112 | /* | |
4113 | * Print a debug message for all failed commands. Applications can use | |
4114 | * this information. | |
4115 | */ | |
0f2bb84d | 4116 | if (rval && trace_level) { |
3b8a1ba3 | 4117 | dev_info(&adapter->dev->dev, "cmd [%x, %x, %x] status:[%x]\n", |
0f2bb84d | 4118 | mc->cmd, mc->opcode, mc->subopcode, rval); |
1da177e4 LT |
4119 | } |
4120 | ||
0b950672 | 4121 | mutex_unlock(&adapter->int_mtx); |
1da177e4 LT |
4122 | return rval; |
4123 | } | |
4124 | ||
1da177e4 LT |
4125 | static struct scsi_host_template megaraid_template = { |
4126 | .module = THIS_MODULE, | |
4127 | .name = "MegaRAID", | |
3492b328 | 4128 | .proc_name = "megaraid_legacy", |
1da177e4 LT |
4129 | .info = megaraid_info, |
4130 | .queuecommand = megaraid_queue, | |
4131 | .bios_param = megaraid_biosparam, | |
4132 | .max_sectors = MAX_SECTORS_PER_IO, | |
4133 | .can_queue = MAX_COMMANDS, | |
4134 | .this_id = DEFAULT_INITIATOR_ID, | |
4135 | .sg_tablesize = MAX_SGLIST, | |
4136 | .cmd_per_lun = DEF_CMD_PER_LUN, | |
1da177e4 LT |
4137 | .eh_abort_handler = megaraid_abort, |
4138 | .eh_device_reset_handler = megaraid_reset, | |
4139 | .eh_bus_reset_handler = megaraid_reset, | |
4140 | .eh_host_reset_handler = megaraid_reset, | |
54b2b50c | 4141 | .no_write_same = 1, |
1da177e4 LT |
4142 | }; |
4143 | ||
6f039790 | 4144 | static int |
1da177e4 LT |
4145 | megaraid_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) |
4146 | { | |
4147 | struct Scsi_Host *host; | |
4148 | adapter_t *adapter; | |
4149 | unsigned long mega_baseport, tbase, flag = 0; | |
4150 | u16 subsysid, subsysvid; | |
4151 | u8 pci_bus, pci_dev_func; | |
4152 | int irq, i, j; | |
4153 | int error = -ENODEV; | |
4154 | ||
27e833da DC |
4155 | if (hba_count >= MAX_CONTROLLERS) |
4156 | goto out; | |
4157 | ||
1da177e4 LT |
4158 | if (pci_enable_device(pdev)) |
4159 | goto out; | |
4160 | pci_set_master(pdev); | |
4161 | ||
4162 | pci_bus = pdev->bus->number; | |
4163 | pci_dev_func = pdev->devfn; | |
4164 | ||
4165 | /* | |
4166 | * The megaraid3 stuff reports the ID of the Intel part which is not | |
4167 | * remotely specific to the megaraid | |
4168 | */ | |
4169 | if (pdev->vendor == PCI_VENDOR_ID_INTEL) { | |
4170 | u16 magic; | |
4171 | /* | |
4172 | * Don't fall over the Compaq management cards using the same | |
4173 | * PCI identifier | |
4174 | */ | |
4175 | if (pdev->subsystem_vendor == PCI_VENDOR_ID_COMPAQ && | |
4176 | pdev->subsystem_device == 0xC000) | |
70054aa3 | 4177 | goto out_disable_device; |
1da177e4 LT |
4178 | /* Now check the magic signature byte */ |
4179 | pci_read_config_word(pdev, PCI_CONF_AMISIG, &magic); | |
4180 | if (magic != HBA_SIGNATURE_471 && magic != HBA_SIGNATURE) | |
70054aa3 | 4181 | goto out_disable_device; |
1da177e4 LT |
4182 | /* Ok it is probably a megaraid */ |
4183 | } | |
4184 | ||
4185 | /* | |
4186 | * For these vendor and device ids, signature offsets are not | |
4187 | * valid and 64 bit is implicit | |
4188 | */ | |
4189 | if (id->driver_data & BOARD_64BIT) | |
4190 | flag |= BOARD_64BIT; | |
4191 | else { | |
4192 | u32 magic64; | |
4193 | ||
4194 | pci_read_config_dword(pdev, PCI_CONF_AMISIG64, &magic64); | |
4195 | if (magic64 == HBA_SIGNATURE_64BIT) | |
4196 | flag |= BOARD_64BIT; | |
4197 | } | |
4198 | ||
4199 | subsysvid = pdev->subsystem_vendor; | |
4200 | subsysid = pdev->subsystem_device; | |
4201 | ||
3b8a1ba3 BH |
4202 | dev_notice(&pdev->dev, "found 0x%4.04x:0x%4.04x\n", |
4203 | id->vendor, id->device); | |
1da177e4 LT |
4204 | |
4205 | /* Read the base port and IRQ from PCI */ | |
4206 | mega_baseport = pci_resource_start(pdev, 0); | |
4207 | irq = pdev->irq; | |
4208 | ||
4209 | tbase = mega_baseport; | |
4210 | if (pci_resource_flags(pdev, 0) & IORESOURCE_MEM) { | |
4211 | flag |= BOARD_MEMMAP; | |
4212 | ||
4213 | if (!request_mem_region(mega_baseport, 128, "megaraid")) { | |
3b8a1ba3 | 4214 | dev_warn(&pdev->dev, "mem region busy!\n"); |
1da177e4 LT |
4215 | goto out_disable_device; |
4216 | } | |
4217 | ||
4218 | mega_baseport = (unsigned long)ioremap(mega_baseport, 128); | |
4219 | if (!mega_baseport) { | |
3b8a1ba3 | 4220 | dev_warn(&pdev->dev, "could not map hba memory\n"); |
1da177e4 LT |
4221 | goto out_release_region; |
4222 | } | |
4223 | } else { | |
4224 | flag |= BOARD_IOMAP; | |
4225 | mega_baseport += 0x10; | |
4226 | ||
4227 | if (!request_region(mega_baseport, 16, "megaraid")) | |
4228 | goto out_disable_device; | |
4229 | } | |
4230 | ||
4231 | /* Initialize SCSI Host structure */ | |
4232 | host = scsi_host_alloc(&megaraid_template, sizeof(adapter_t)); | |
4233 | if (!host) | |
4234 | goto out_iounmap; | |
4235 | ||
4236 | adapter = (adapter_t *)host->hostdata; | |
4237 | memset(adapter, 0, sizeof(adapter_t)); | |
4238 | ||
3b8a1ba3 | 4239 | dev_notice(&pdev->dev, |
1da177e4 LT |
4240 | "scsi%d:Found MegaRAID controller at 0x%lx, IRQ:%d\n", |
4241 | host->host_no, mega_baseport, irq); | |
4242 | ||
4243 | adapter->base = mega_baseport; | |
00769ec4 JG |
4244 | if (flag & BOARD_MEMMAP) |
4245 | adapter->mmio_base = (void __iomem *) mega_baseport; | |
1da177e4 LT |
4246 | |
4247 | INIT_LIST_HEAD(&adapter->free_list); | |
4248 | INIT_LIST_HEAD(&adapter->pending_list); | |
4249 | INIT_LIST_HEAD(&adapter->completed_list); | |
4250 | ||
4251 | adapter->flag = flag; | |
4252 | spin_lock_init(&adapter->lock); | |
1da177e4 LT |
4253 | |
4254 | host->cmd_per_lun = max_cmd_per_lun; | |
4255 | host->max_sectors = max_sectors_per_io; | |
4256 | ||
4257 | adapter->dev = pdev; | |
4258 | adapter->host = host; | |
4259 | ||
4260 | adapter->host->irq = irq; | |
4261 | ||
4262 | if (flag & BOARD_MEMMAP) | |
4263 | adapter->host->base = tbase; | |
4264 | else { | |
4265 | adapter->host->io_port = tbase; | |
4266 | adapter->host->n_io_port = 16; | |
4267 | } | |
4268 | ||
4269 | adapter->host->unique_id = (pci_bus << 8) | pci_dev_func; | |
4270 | ||
4271 | /* | |
4272 | * Allocate buffer to issue internal commands. | |
4273 | */ | |
4274 | adapter->mega_buffer = pci_alloc_consistent(adapter->dev, | |
4275 | MEGA_BUFFER_SIZE, &adapter->buf_dma_handle); | |
4276 | if (!adapter->mega_buffer) { | |
3b8a1ba3 | 4277 | dev_warn(&pdev->dev, "out of RAM\n"); |
1da177e4 LT |
4278 | goto out_host_put; |
4279 | } | |
4280 | ||
6da2ec56 KC |
4281 | adapter->scb_list = kmalloc_array(MAX_COMMANDS, sizeof(scb_t), |
4282 | GFP_KERNEL); | |
1da177e4 | 4283 | if (!adapter->scb_list) { |
3b8a1ba3 | 4284 | dev_warn(&pdev->dev, "out of RAM\n"); |
1da177e4 LT |
4285 | goto out_free_cmd_buffer; |
4286 | } | |
4287 | ||
4288 | if (request_irq(irq, (adapter->flag & BOARD_MEMMAP) ? | |
4289 | megaraid_isr_memmapped : megaraid_isr_iomapped, | |
1d6f359a | 4290 | IRQF_SHARED, "megaraid", adapter)) { |
3b8a1ba3 | 4291 | dev_warn(&pdev->dev, "Couldn't register IRQ %d!\n", irq); |
1da177e4 LT |
4292 | goto out_free_scb_list; |
4293 | } | |
4294 | ||
4295 | if (mega_setup_mailbox(adapter)) | |
4296 | goto out_free_irq; | |
4297 | ||
4298 | if (mega_query_adapter(adapter)) | |
4299 | goto out_free_mbox; | |
4300 | ||
4301 | /* | |
4302 | * Have checks for some buggy f/w | |
4303 | */ | |
4304 | if ((subsysid == 0x1111) && (subsysvid == 0x1111)) { | |
4305 | /* | |
4306 | * Which firmware | |
4307 | */ | |
4308 | if (!strcmp(adapter->fw_version, "3.00") || | |
4309 | !strcmp(adapter->fw_version, "3.01")) { | |
4310 | ||
3b8a1ba3 BH |
4311 | dev_warn(&pdev->dev, |
4312 | "Your card is a Dell PERC " | |
4313 | "2/SC RAID controller with " | |
1da177e4 LT |
4314 | "firmware\nmegaraid: 3.00 or 3.01. " |
4315 | "This driver is known to have " | |
4316 | "corruption issues\nmegaraid: with " | |
4317 | "those firmware versions on this " | |
4318 | "specific card. In order\nmegaraid: " | |
4319 | "to protect your data, please upgrade " | |
4320 | "your firmware to version\nmegaraid: " | |
4321 | "3.10 or later, available from the " | |
4322 | "Dell Technical Support web\n" | |
4323 | "megaraid: site at\nhttp://support." | |
4324 | "dell.com/us/en/filelib/download/" | |
4325 | "index.asp?fileid=2940\n" | |
4326 | ); | |
4327 | } | |
4328 | } | |
4329 | ||
4330 | /* | |
4331 | * If we have a HP 1M(0x60E7)/2M(0x60E8) controller with | |
4332 | * firmware H.01.07, H.01.08, and H.01.09 disable 64 bit | |
4333 | * support, since this firmware cannot handle 64 bit | |
4334 | * addressing | |
4335 | */ | |
54ebfd57 | 4336 | if ((subsysvid == PCI_VENDOR_ID_HP) && |
1da177e4 LT |
4337 | ((subsysid == 0x60E7) || (subsysid == 0x60E8))) { |
4338 | /* | |
4339 | * which firmware | |
4340 | */ | |
4341 | if (!strcmp(adapter->fw_version, "H01.07") || | |
4342 | !strcmp(adapter->fw_version, "H01.08") || | |
4343 | !strcmp(adapter->fw_version, "H01.09") ) { | |
3b8a1ba3 BH |
4344 | dev_warn(&pdev->dev, |
4345 | "Firmware H.01.07, " | |
1da177e4 LT |
4346 | "H.01.08, and H.01.09 on 1M/2M " |
4347 | "controllers\n" | |
3b8a1ba3 BH |
4348 | "do not support 64 bit " |
4349 | "addressing.\nDISABLING " | |
1da177e4 LT |
4350 | "64 bit support.\n"); |
4351 | adapter->flag &= ~BOARD_64BIT; | |
4352 | } | |
4353 | } | |
4354 | ||
4355 | if (mega_is_bios_enabled(adapter)) | |
4356 | mega_hbas[hba_count].is_bios_enabled = 1; | |
4357 | mega_hbas[hba_count].hostdata_addr = adapter; | |
4358 | ||
4359 | /* | |
4360 | * Find out which channel is raid and which is scsi. This is | |
4361 | * for ROMB support. | |
4362 | */ | |
4363 | mega_enum_raid_scsi(adapter); | |
4364 | ||
4365 | /* | |
4366 | * Find out if a logical drive is set as the boot drive. If | |
4367 | * there is one, will make that as the first logical drive. | |
4368 | * ROMB: Do we have to boot from a physical drive. Then all | |
4369 | * the physical drives would appear before the logical disks. | |
4370 | * Else, all the physical drives would be exported to the mid | |
4371 | * layer after logical drives. | |
4372 | */ | |
4373 | mega_get_boot_drv(adapter); | |
4374 | ||
4375 | if (adapter->boot_pdrv_enabled) { | |
4376 | j = adapter->product_info.nchannels; | |
4377 | for( i = 0; i < j; i++ ) | |
4378 | adapter->logdrv_chan[i] = 0; | |
4379 | for( i = j; i < NVIRT_CHAN + j; i++ ) | |
4380 | adapter->logdrv_chan[i] = 1; | |
4381 | } else { | |
4382 | for (i = 0; i < NVIRT_CHAN; i++) | |
4383 | adapter->logdrv_chan[i] = 1; | |
4384 | for (i = NVIRT_CHAN; i < MAX_CHANNELS+NVIRT_CHAN; i++) | |
4385 | adapter->logdrv_chan[i] = 0; | |
4386 | adapter->mega_ch_class <<= NVIRT_CHAN; | |
4387 | } | |
4388 | ||
4389 | /* | |
4390 | * Do we support random deletion and addition of logical | |
4391 | * drives | |
4392 | */ | |
4393 | adapter->read_ldidmap = 0; /* set it after first logdrv | |
4394 | delete cmd */ | |
4395 | adapter->support_random_del = mega_support_random_del(adapter); | |
4396 | ||
4397 | /* Initialize SCBs */ | |
4398 | if (mega_init_scb(adapter)) | |
4399 | goto out_free_mbox; | |
4400 | ||
4401 | /* | |
4402 | * Reset the pending commands counter | |
4403 | */ | |
4404 | atomic_set(&adapter->pend_cmds, 0); | |
4405 | ||
4406 | /* | |
4407 | * Reset the adapter quiescent flag | |
4408 | */ | |
4409 | atomic_set(&adapter->quiescent, 0); | |
4410 | ||
4411 | hba_soft_state[hba_count] = adapter; | |
4412 | ||
4413 | /* | |
4414 | * Fill in the structure which needs to be passed back to the | |
4415 | * application when it does an ioctl() for controller related | |
4416 | * information. | |
4417 | */ | |
4418 | i = hba_count; | |
4419 | ||
4420 | mcontroller[i].base = mega_baseport; | |
4421 | mcontroller[i].irq = irq; | |
4422 | mcontroller[i].numldrv = adapter->numldrv; | |
4423 | mcontroller[i].pcibus = pci_bus; | |
4424 | mcontroller[i].pcidev = id->device; | |
4425 | mcontroller[i].pcifun = PCI_FUNC (pci_dev_func); | |
4426 | mcontroller[i].pciid = -1; | |
4427 | mcontroller[i].pcivendor = id->vendor; | |
4428 | mcontroller[i].pcislot = PCI_SLOT(pci_dev_func); | |
4429 | mcontroller[i].uid = (pci_bus << 8) | pci_dev_func; | |
4430 | ||
4431 | ||
4432 | /* Set the Mode of addressing to 64 bit if we can */ | |
4433 | if ((adapter->flag & BOARD_64BIT) && (sizeof(dma_addr_t) == 8)) { | |
6a35528a | 4434 | pci_set_dma_mask(pdev, DMA_BIT_MASK(64)); |
1da177e4 LT |
4435 | adapter->has_64bit_addr = 1; |
4436 | } else { | |
284901a9 | 4437 | pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); |
1da177e4 LT |
4438 | adapter->has_64bit_addr = 0; |
4439 | } | |
4440 | ||
0b950672 | 4441 | mutex_init(&adapter->int_mtx); |
8d115f84 | 4442 | init_completion(&adapter->int_waitq); |
1da177e4 LT |
4443 | |
4444 | adapter->this_id = DEFAULT_INITIATOR_ID; | |
4445 | adapter->host->this_id = DEFAULT_INITIATOR_ID; | |
4446 | ||
4447 | #if MEGA_HAVE_CLUSTERING | |
4448 | /* | |
4449 | * Is cluster support enabled on this controller | |
4450 | * Note: In a cluster the HBAs ( the initiators ) will have | |
4451 | * different target IDs and we cannot assume it to be 7. Call | |
4452 | * to mega_support_cluster() will get the target ids also if | |
4453 | * the cluster support is available | |
4454 | */ | |
4455 | adapter->has_cluster = mega_support_cluster(adapter); | |
4456 | if (adapter->has_cluster) { | |
3b8a1ba3 BH |
4457 | dev_notice(&pdev->dev, |
4458 | "Cluster driver, initiator id:%d\n", | |
1da177e4 LT |
4459 | adapter->this_id); |
4460 | } | |
4461 | #endif | |
4462 | ||
4463 | pci_set_drvdata(pdev, host); | |
4464 | ||
4465 | mega_create_proc_entry(hba_count, mega_proc_dir_entry); | |
4466 | ||
4467 | error = scsi_add_host(host, &pdev->dev); | |
4468 | if (error) | |
4469 | goto out_free_mbox; | |
4470 | ||
4471 | scsi_scan_host(host); | |
4472 | hba_count++; | |
4473 | return 0; | |
4474 | ||
4475 | out_free_mbox: | |
4476 | pci_free_consistent(adapter->dev, sizeof(mbox64_t), | |
4477 | adapter->una_mbox64, adapter->una_mbox64_dma); | |
4478 | out_free_irq: | |
4479 | free_irq(adapter->host->irq, adapter); | |
4480 | out_free_scb_list: | |
4481 | kfree(adapter->scb_list); | |
4482 | out_free_cmd_buffer: | |
4483 | pci_free_consistent(adapter->dev, MEGA_BUFFER_SIZE, | |
4484 | adapter->mega_buffer, adapter->buf_dma_handle); | |
4485 | out_host_put: | |
4486 | scsi_host_put(host); | |
4487 | out_iounmap: | |
4488 | if (flag & BOARD_MEMMAP) | |
4489 | iounmap((void *)mega_baseport); | |
4490 | out_release_region: | |
4491 | if (flag & BOARD_MEMMAP) | |
4492 | release_mem_region(tbase, 128); | |
4493 | else | |
4494 | release_region(mega_baseport, 16); | |
4495 | out_disable_device: | |
4496 | pci_disable_device(pdev); | |
4497 | out: | |
4498 | return error; | |
4499 | } | |
4500 | ||
4501 | static void | |
4502 | __megaraid_shutdown(adapter_t *adapter) | |
4503 | { | |
4504 | u_char raw_mbox[sizeof(struct mbox_out)]; | |
4505 | mbox_t *mbox = (mbox_t *)raw_mbox; | |
4506 | int i; | |
4507 | ||
4508 | /* Flush adapter cache */ | |
4509 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); | |
4510 | raw_mbox[0] = FLUSH_ADAPTER; | |
4511 | ||
4512 | free_irq(adapter->host->irq, adapter); | |
4513 | ||
4514 | /* Issue a blocking (interrupts disabled) command to the card */ | |
4515 | issue_scb_block(adapter, raw_mbox); | |
4516 | ||
4517 | /* Flush disks cache */ | |
4518 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); | |
4519 | raw_mbox[0] = FLUSH_SYSTEM; | |
4520 | ||
4521 | /* Issue a blocking (interrupts disabled) command to the card */ | |
4522 | issue_scb_block(adapter, raw_mbox); | |
4523 | ||
4524 | if (atomic_read(&adapter->pend_cmds) > 0) | |
3b8a1ba3 | 4525 | dev_warn(&adapter->dev->dev, "pending commands!!\n"); |
1da177e4 LT |
4526 | |
4527 | /* | |
4528 | * Have a delibrate delay to make sure all the caches are | |
4529 | * actually flushed. | |
4530 | */ | |
4531 | for (i = 0; i <= 10; i++) | |
4532 | mdelay(1000); | |
4533 | } | |
4534 | ||
6f039790 | 4535 | static void |
1da177e4 LT |
4536 | megaraid_remove_one(struct pci_dev *pdev) |
4537 | { | |
4538 | struct Scsi_Host *host = pci_get_drvdata(pdev); | |
4539 | adapter_t *adapter = (adapter_t *)host->hostdata; | |
f7680bec | 4540 | char buf[12] = { 0 }; |
1da177e4 LT |
4541 | |
4542 | scsi_remove_host(host); | |
4543 | ||
4544 | __megaraid_shutdown(adapter); | |
4545 | ||
4546 | /* Free our resources */ | |
4547 | if (adapter->flag & BOARD_MEMMAP) { | |
4548 | iounmap((void *)adapter->base); | |
4549 | release_mem_region(adapter->host->base, 128); | |
4550 | } else | |
4551 | release_region(adapter->base, 16); | |
4552 | ||
4553 | mega_free_sgl(adapter); | |
4554 | ||
f7680bec CH |
4555 | sprintf(buf, "hba%d", adapter->host->host_no); |
4556 | remove_proc_subtree(buf, mega_proc_dir_entry); | |
1da177e4 LT |
4557 | |
4558 | pci_free_consistent(adapter->dev, MEGA_BUFFER_SIZE, | |
4559 | adapter->mega_buffer, adapter->buf_dma_handle); | |
4560 | kfree(adapter->scb_list); | |
4561 | pci_free_consistent(adapter->dev, sizeof(mbox64_t), | |
4562 | adapter->una_mbox64, adapter->una_mbox64_dma); | |
4563 | ||
4564 | scsi_host_put(host); | |
4565 | pci_disable_device(pdev); | |
4566 | ||
4567 | hba_count--; | |
4568 | } | |
4569 | ||
4570 | static void | |
d18c3db5 | 4571 | megaraid_shutdown(struct pci_dev *pdev) |
1da177e4 | 4572 | { |
d18c3db5 | 4573 | struct Scsi_Host *host = pci_get_drvdata(pdev); |
1da177e4 LT |
4574 | adapter_t *adapter = (adapter_t *)host->hostdata; |
4575 | ||
4576 | __megaraid_shutdown(adapter); | |
4577 | } | |
4578 | ||
4579 | static struct pci_device_id megaraid_pci_tbl[] = { | |
1da177e4 LT |
4580 | {PCI_VENDOR_ID_AMI, PCI_DEVICE_ID_AMI_MEGARAID, |
4581 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, | |
4582 | {PCI_VENDOR_ID_AMI, PCI_DEVICE_ID_AMI_MEGARAID2, | |
4583 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, | |
1da177e4 LT |
4584 | {PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_AMI_MEGARAID3, |
4585 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, | |
1da177e4 LT |
4586 | {0,} |
4587 | }; | |
4588 | MODULE_DEVICE_TABLE(pci, megaraid_pci_tbl); | |
4589 | ||
4590 | static struct pci_driver megaraid_pci_driver = { | |
3542adcb | 4591 | .name = "megaraid_legacy", |
1da177e4 LT |
4592 | .id_table = megaraid_pci_tbl, |
4593 | .probe = megaraid_probe_one, | |
6f039790 | 4594 | .remove = megaraid_remove_one, |
d18c3db5 | 4595 | .shutdown = megaraid_shutdown, |
1da177e4 LT |
4596 | }; |
4597 | ||
4598 | static int __init megaraid_init(void) | |
4599 | { | |
4600 | int error; | |
4601 | ||
4602 | if ((max_cmd_per_lun <= 0) || (max_cmd_per_lun > MAX_CMD_PER_LUN)) | |
4603 | max_cmd_per_lun = MAX_CMD_PER_LUN; | |
4604 | if (max_mbox_busy_wait > MBOX_BUSY_WAIT) | |
4605 | max_mbox_busy_wait = MBOX_BUSY_WAIT; | |
4606 | ||
4607 | #ifdef CONFIG_PROC_FS | |
c74c120a | 4608 | mega_proc_dir_entry = proc_mkdir("megaraid", NULL); |
1da177e4 LT |
4609 | if (!mega_proc_dir_entry) { |
4610 | printk(KERN_WARNING | |
4611 | "megaraid: failed to create megaraid root\n"); | |
4612 | } | |
4613 | #endif | |
4520b008 | 4614 | error = pci_register_driver(&megaraid_pci_driver); |
1da177e4 LT |
4615 | if (error) { |
4616 | #ifdef CONFIG_PROC_FS | |
c74c120a | 4617 | remove_proc_entry("megaraid", NULL); |
1da177e4 LT |
4618 | #endif |
4619 | return error; | |
4620 | } | |
4621 | ||
4622 | /* | |
4623 | * Register the driver as a character device, for applications | |
4624 | * to access it for ioctls. | |
4625 | * First argument (major) to register_chrdev implies a dynamic | |
4626 | * major number allocation. | |
4627 | */ | |
3492b328 | 4628 | major = register_chrdev(0, "megadev_legacy", &megadev_fops); |
1da177e4 LT |
4629 | if (!major) { |
4630 | printk(KERN_WARNING | |
4631 | "megaraid: failed to register char device\n"); | |
4632 | } | |
4633 | ||
4634 | return 0; | |
4635 | } | |
4636 | ||
4637 | static void __exit megaraid_exit(void) | |
4638 | { | |
4639 | /* | |
4640 | * Unregister the character device interface to the driver. | |
4641 | */ | |
3492b328 | 4642 | unregister_chrdev(major, "megadev_legacy"); |
1da177e4 LT |
4643 | |
4644 | pci_unregister_driver(&megaraid_pci_driver); | |
4645 | ||
4646 | #ifdef CONFIG_PROC_FS | |
c74c120a | 4647 | remove_proc_entry("megaraid", NULL); |
1da177e4 LT |
4648 | #endif |
4649 | } | |
4650 | ||
4651 | module_init(megaraid_init); | |
4652 | module_exit(megaraid_exit); | |
4653 | ||
4654 | /* vi: set ts=8 sw=8 tw=78: */ |