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1da177e4 LT |
1 | /* |
2 | 3w-9xxx.c -- 3ware 9000 Storage Controller device driver for Linux. | |
3 | ||
4 | Written By: Adam Radford <linuxraid@amcc.com> | |
75913d9b | 5 | Modifications By: Tom Couch <linuxraid@amcc.com> |
1da177e4 | 6 | |
0e78d158 | 7 | Copyright (C) 2004-2007 Applied Micro Circuits Corporation. |
1da177e4 LT |
8 | |
9 | This program is free software; you can redistribute it and/or modify | |
10 | it under the terms of the GNU General Public License as published by | |
11 | the Free Software Foundation; version 2 of the License. | |
12 | ||
13 | This program is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | NO WARRANTY | |
19 | THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR | |
20 | CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT | |
21 | LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT, | |
22 | MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is | |
23 | solely responsible for determining the appropriateness of using and | |
24 | distributing the Program and assumes all risks associated with its | |
25 | exercise of rights under this Agreement, including but not limited to | |
26 | the risks and costs of program errors, damage to or loss of data, | |
27 | programs or equipment, and unavailability or interruption of operations. | |
28 | ||
29 | DISCLAIMER OF LIABILITY | |
30 | NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY | |
31 | DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
32 | DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND | |
33 | ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR | |
34 | TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE | |
35 | USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED | |
36 | HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES | |
37 | ||
38 | You should have received a copy of the GNU General Public License | |
39 | along with this program; if not, write to the Free Software | |
40 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
41 | ||
42 | Bugs/Comments/Suggestions should be mailed to: | |
43 | linuxraid@amcc.com | |
44 | ||
45 | For more information, goto: | |
46 | http://www.amcc.com | |
47 | ||
48 | Note: This version of the driver does not contain a bundled firmware | |
49 | image. | |
50 | ||
51 | History | |
52 | ------- | |
53 | 2.26.02.000 - Driver cleanup for kernel submission. | |
54 | 2.26.02.001 - Replace schedule_timeout() calls with msleep(). | |
55 | 2.26.02.002 - Add support for PAE mode. | |
56 | Add lun support. | |
57 | Fix twa_remove() to free irq handler/unregister_chrdev() | |
58 | before shutting down card. | |
59 | Change to new 'change_queue_depth' api. | |
60 | Fix 'handled=1' ISR usage, remove bogus IRQ check. | |
61 | Remove un-needed eh_abort handler. | |
62 | Add support for embedded firmware error strings. | |
d327d082 | 63 | 2.26.02.003 - Correctly handle single sgl's with use_sg=1. |
49bfd8db | 64 | 2.26.02.004 - Add support for 9550SX controllers. |
62288f10 | 65 | 2.26.02.005 - Fix use_sg == 0 mapping on systems with 4GB or higher. |
75913d9b | 66 | 2.26.02.006 - Fix 9550SX pchip reset timeout. |
67 | Add big endian support. | |
1e08dcb3 | 68 | 2.26.02.007 - Disable local interrupts during kmap/unmap_atomic(). |
4039c30e | 69 | 2.26.02.008 - Free irq handler in __twa_shutdown(). |
70 | Serialize reset code. | |
71 | Add support for 9650SE controllers. | |
0e78d158 | 72 | 2.26.02.009 - Fix dma mask setting to fallback to 32-bit if 64-bit fails. |
73 | 2.26.02.010 - Add support for 9690SA controllers. | |
1da177e4 LT |
74 | */ |
75 | ||
76 | #include <linux/module.h> | |
77 | #include <linux/reboot.h> | |
78 | #include <linux/spinlock.h> | |
79 | #include <linux/interrupt.h> | |
80 | #include <linux/moduleparam.h> | |
81 | #include <linux/errno.h> | |
82 | #include <linux/types.h> | |
83 | #include <linux/delay.h> | |
84 | #include <linux/pci.h> | |
85 | #include <linux/time.h> | |
a12e25bd | 86 | #include <linux/mutex.h> |
f2b9857e | 87 | #include <linux/smp_lock.h> |
1da177e4 LT |
88 | #include <asm/io.h> |
89 | #include <asm/irq.h> | |
90 | #include <asm/uaccess.h> | |
91 | #include <scsi/scsi.h> | |
92 | #include <scsi/scsi_host.h> | |
93 | #include <scsi/scsi_tcq.h> | |
94 | #include <scsi/scsi_cmnd.h> | |
95 | #include "3w-9xxx.h" | |
96 | ||
97 | /* Globals */ | |
0e78d158 | 98 | #define TW_DRIVER_VERSION "2.26.02.010" |
1da177e4 LT |
99 | static TW_Device_Extension *twa_device_extension_list[TW_MAX_SLOT]; |
100 | static unsigned int twa_device_extension_count; | |
101 | static int twa_major = -1; | |
102 | extern struct timezone sys_tz; | |
103 | ||
104 | /* Module parameters */ | |
105 | MODULE_AUTHOR ("AMCC"); | |
106 | MODULE_DESCRIPTION ("3ware 9000 Storage Controller Linux Driver"); | |
107 | MODULE_LICENSE("GPL"); | |
108 | MODULE_VERSION(TW_DRIVER_VERSION); | |
109 | ||
110 | /* Function prototypes */ | |
111 | static void twa_aen_queue_event(TW_Device_Extension *tw_dev, TW_Command_Apache_Header *header); | |
112 | static int twa_aen_read_queue(TW_Device_Extension *tw_dev, int request_id); | |
113 | static char *twa_aen_severity_lookup(unsigned char severity_code); | |
114 | static void twa_aen_sync_time(TW_Device_Extension *tw_dev, int request_id); | |
115 | static int twa_chrdev_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg); | |
116 | static int twa_chrdev_open(struct inode *inode, struct file *file); | |
117 | static int twa_fill_sense(TW_Device_Extension *tw_dev, int request_id, int copy_sense, int print_host); | |
118 | static void twa_free_request_id(TW_Device_Extension *tw_dev,int request_id); | |
119 | static void twa_get_request_id(TW_Device_Extension *tw_dev, int *request_id); | |
120 | static int twa_initconnection(TW_Device_Extension *tw_dev, int message_credits, | |
121 | u32 set_features, unsigned short current_fw_srl, | |
122 | unsigned short current_fw_arch_id, | |
123 | unsigned short current_fw_branch, | |
124 | unsigned short current_fw_build, | |
125 | unsigned short *fw_on_ctlr_srl, | |
126 | unsigned short *fw_on_ctlr_arch_id, | |
127 | unsigned short *fw_on_ctlr_branch, | |
128 | unsigned short *fw_on_ctlr_build, | |
129 | u32 *init_connect_result); | |
0e78d158 | 130 | static void twa_load_sgl(TW_Device_Extension *tw_dev, TW_Command_Full *full_command_packet, int request_id, dma_addr_t dma_handle, int length); |
1da177e4 LT |
131 | static int twa_poll_response(TW_Device_Extension *tw_dev, int request_id, int seconds); |
132 | static int twa_poll_status_gone(TW_Device_Extension *tw_dev, u32 flag, int seconds); | |
133 | static int twa_post_command_packet(TW_Device_Extension *tw_dev, int request_id, char internal); | |
0e78d158 | 134 | static int twa_reset_device_extension(TW_Device_Extension *tw_dev); |
1da177e4 LT |
135 | static int twa_reset_sequence(TW_Device_Extension *tw_dev, int soft_reset); |
136 | static int twa_scsiop_execute_scsi(TW_Device_Extension *tw_dev, int request_id, char *cdb, int use_sg, TW_SG_Entry *sglistarg); | |
137 | static void twa_scsiop_execute_scsi_complete(TW_Device_Extension *tw_dev, int request_id); | |
138 | static char *twa_string_lookup(twa_message_type *table, unsigned int aen_code); | |
139 | static void twa_unmap_scsi_data(TW_Device_Extension *tw_dev, int request_id); | |
140 | ||
141 | /* Functions */ | |
142 | ||
143 | /* Show some statistics about the card */ | |
ee959b00 TJ |
144 | static ssize_t twa_show_stats(struct device *dev, |
145 | struct device_attribute *attr, char *buf) | |
1da177e4 | 146 | { |
ee959b00 | 147 | struct Scsi_Host *host = class_to_shost(dev); |
1da177e4 LT |
148 | TW_Device_Extension *tw_dev = (TW_Device_Extension *)host->hostdata; |
149 | unsigned long flags = 0; | |
150 | ssize_t len; | |
151 | ||
152 | spin_lock_irqsave(tw_dev->host->host_lock, flags); | |
153 | len = snprintf(buf, PAGE_SIZE, "3w-9xxx Driver version: %s\n" | |
154 | "Current commands posted: %4d\n" | |
155 | "Max commands posted: %4d\n" | |
156 | "Current pending commands: %4d\n" | |
157 | "Max pending commands: %4d\n" | |
158 | "Last sgl length: %4d\n" | |
159 | "Max sgl length: %4d\n" | |
160 | "Last sector count: %4d\n" | |
161 | "Max sector count: %4d\n" | |
162 | "SCSI Host Resets: %4d\n" | |
163 | "AEN's: %4d\n", | |
164 | TW_DRIVER_VERSION, | |
165 | tw_dev->posted_request_count, | |
166 | tw_dev->max_posted_request_count, | |
167 | tw_dev->pending_request_count, | |
168 | tw_dev->max_pending_request_count, | |
169 | tw_dev->sgl_entries, | |
170 | tw_dev->max_sgl_entries, | |
171 | tw_dev->sector_count, | |
172 | tw_dev->max_sector_count, | |
173 | tw_dev->num_resets, | |
174 | tw_dev->aen_count); | |
175 | spin_unlock_irqrestore(tw_dev->host->host_lock, flags); | |
176 | return len; | |
177 | } /* End twa_show_stats() */ | |
178 | ||
179 | /* This function will set a devices queue depth */ | |
180 | static int twa_change_queue_depth(struct scsi_device *sdev, int queue_depth) | |
181 | { | |
182 | if (queue_depth > TW_Q_LENGTH-2) | |
183 | queue_depth = TW_Q_LENGTH-2; | |
184 | scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, queue_depth); | |
185 | return queue_depth; | |
186 | } /* End twa_change_queue_depth() */ | |
187 | ||
188 | /* Create sysfs 'stats' entry */ | |
ee959b00 | 189 | static struct device_attribute twa_host_stats_attr = { |
1da177e4 LT |
190 | .attr = { |
191 | .name = "stats", | |
192 | .mode = S_IRUGO, | |
193 | }, | |
194 | .show = twa_show_stats | |
195 | }; | |
196 | ||
197 | /* Host attributes initializer */ | |
ee959b00 | 198 | static struct device_attribute *twa_host_attrs[] = { |
1da177e4 LT |
199 | &twa_host_stats_attr, |
200 | NULL, | |
201 | }; | |
202 | ||
203 | /* File operations struct for character device */ | |
00977a59 | 204 | static const struct file_operations twa_fops = { |
1da177e4 LT |
205 | .owner = THIS_MODULE, |
206 | .ioctl = twa_chrdev_ioctl, | |
207 | .open = twa_chrdev_open, | |
208 | .release = NULL | |
209 | }; | |
210 | ||
211 | /* This function will complete an aen request from the isr */ | |
212 | static int twa_aen_complete(TW_Device_Extension *tw_dev, int request_id) | |
213 | { | |
214 | TW_Command_Full *full_command_packet; | |
215 | TW_Command *command_packet; | |
216 | TW_Command_Apache_Header *header; | |
217 | unsigned short aen; | |
218 | int retval = 1; | |
219 | ||
220 | header = (TW_Command_Apache_Header *)tw_dev->generic_buffer_virt[request_id]; | |
221 | tw_dev->posted_request_count--; | |
75913d9b | 222 | aen = le16_to_cpu(header->status_block.error); |
1da177e4 LT |
223 | full_command_packet = tw_dev->command_packet_virt[request_id]; |
224 | command_packet = &full_command_packet->command.oldcommand; | |
225 | ||
226 | /* First check for internal completion of set param for time sync */ | |
227 | if (TW_OP_OUT(command_packet->opcode__sgloffset) == TW_OP_SET_PARAM) { | |
228 | /* Keep reading the queue in case there are more aen's */ | |
229 | if (twa_aen_read_queue(tw_dev, request_id)) | |
230 | goto out2; | |
231 | else { | |
232 | retval = 0; | |
233 | goto out; | |
234 | } | |
235 | } | |
236 | ||
237 | switch (aen) { | |
238 | case TW_AEN_QUEUE_EMPTY: | |
239 | /* Quit reading the queue if this is the last one */ | |
240 | break; | |
241 | case TW_AEN_SYNC_TIME_WITH_HOST: | |
242 | twa_aen_sync_time(tw_dev, request_id); | |
243 | retval = 0; | |
244 | goto out; | |
245 | default: | |
246 | twa_aen_queue_event(tw_dev, header); | |
247 | ||
248 | /* If there are more aen's, keep reading the queue */ | |
249 | if (twa_aen_read_queue(tw_dev, request_id)) | |
250 | goto out2; | |
251 | else { | |
252 | retval = 0; | |
253 | goto out; | |
254 | } | |
255 | } | |
256 | retval = 0; | |
257 | out2: | |
258 | tw_dev->state[request_id] = TW_S_COMPLETED; | |
259 | twa_free_request_id(tw_dev, request_id); | |
260 | clear_bit(TW_IN_ATTENTION_LOOP, &tw_dev->flags); | |
261 | out: | |
262 | return retval; | |
263 | } /* End twa_aen_complete() */ | |
264 | ||
265 | /* This function will drain aen queue */ | |
266 | static int twa_aen_drain_queue(TW_Device_Extension *tw_dev, int no_check_reset) | |
267 | { | |
268 | int request_id = 0; | |
269 | char cdb[TW_MAX_CDB_LEN]; | |
270 | TW_SG_Entry sglist[1]; | |
271 | int finished = 0, count = 0; | |
272 | TW_Command_Full *full_command_packet; | |
273 | TW_Command_Apache_Header *header; | |
274 | unsigned short aen; | |
275 | int first_reset = 0, queue = 0, retval = 1; | |
276 | ||
277 | if (no_check_reset) | |
278 | first_reset = 0; | |
279 | else | |
280 | first_reset = 1; | |
281 | ||
282 | full_command_packet = tw_dev->command_packet_virt[request_id]; | |
283 | memset(full_command_packet, 0, sizeof(TW_Command_Full)); | |
284 | ||
285 | /* Initialize cdb */ | |
286 | memset(&cdb, 0, TW_MAX_CDB_LEN); | |
287 | cdb[0] = REQUEST_SENSE; /* opcode */ | |
288 | cdb[4] = TW_ALLOCATION_LENGTH; /* allocation length */ | |
289 | ||
290 | /* Initialize sglist */ | |
291 | memset(&sglist, 0, sizeof(TW_SG_Entry)); | |
292 | sglist[0].length = TW_SECTOR_SIZE; | |
293 | sglist[0].address = tw_dev->generic_buffer_phys[request_id]; | |
294 | ||
295 | if (sglist[0].address & TW_ALIGNMENT_9000_SGL) { | |
296 | TW_PRINTK(tw_dev->host, TW_DRIVER, 0x1, "Found unaligned address during AEN drain"); | |
297 | goto out; | |
298 | } | |
299 | ||
300 | /* Mark internal command */ | |
301 | tw_dev->srb[request_id] = NULL; | |
302 | ||
303 | do { | |
304 | /* Send command to the board */ | |
305 | if (twa_scsiop_execute_scsi(tw_dev, request_id, cdb, 1, sglist)) { | |
306 | TW_PRINTK(tw_dev->host, TW_DRIVER, 0x2, "Error posting request sense"); | |
307 | goto out; | |
308 | } | |
309 | ||
310 | /* Now poll for completion */ | |
311 | if (twa_poll_response(tw_dev, request_id, 30)) { | |
312 | TW_PRINTK(tw_dev->host, TW_DRIVER, 0x3, "No valid response while draining AEN queue"); | |
313 | tw_dev->posted_request_count--; | |
314 | goto out; | |
315 | } | |
316 | ||
317 | tw_dev->posted_request_count--; | |
318 | header = (TW_Command_Apache_Header *)tw_dev->generic_buffer_virt[request_id]; | |
75913d9b | 319 | aen = le16_to_cpu(header->status_block.error); |
1da177e4 LT |
320 | queue = 0; |
321 | count++; | |
322 | ||
323 | switch (aen) { | |
324 | case TW_AEN_QUEUE_EMPTY: | |
325 | if (first_reset != 1) | |
326 | goto out; | |
327 | else | |
328 | finished = 1; | |
329 | break; | |
330 | case TW_AEN_SOFT_RESET: | |
331 | if (first_reset == 0) | |
332 | first_reset = 1; | |
333 | else | |
334 | queue = 1; | |
335 | break; | |
336 | case TW_AEN_SYNC_TIME_WITH_HOST: | |
337 | break; | |
338 | default: | |
339 | queue = 1; | |
340 | } | |
341 | ||
342 | /* Now queue an event info */ | |
343 | if (queue) | |
344 | twa_aen_queue_event(tw_dev, header); | |
345 | } while ((finished == 0) && (count < TW_MAX_AEN_DRAIN)); | |
346 | ||
347 | if (count == TW_MAX_AEN_DRAIN) | |
348 | goto out; | |
349 | ||
350 | retval = 0; | |
351 | out: | |
352 | tw_dev->state[request_id] = TW_S_INITIAL; | |
353 | return retval; | |
354 | } /* End twa_aen_drain_queue() */ | |
355 | ||
356 | /* This function will queue an event */ | |
357 | static void twa_aen_queue_event(TW_Device_Extension *tw_dev, TW_Command_Apache_Header *header) | |
358 | { | |
359 | u32 local_time; | |
360 | struct timeval time; | |
361 | TW_Event *event; | |
362 | unsigned short aen; | |
363 | char host[16]; | |
364 | char *error_str; | |
365 | ||
366 | tw_dev->aen_count++; | |
367 | ||
368 | /* Fill out event info */ | |
369 | event = tw_dev->event_queue[tw_dev->error_index]; | |
370 | ||
371 | /* Check for clobber */ | |
372 | host[0] = '\0'; | |
373 | if (tw_dev->host) { | |
374 | sprintf(host, " scsi%d:", tw_dev->host->host_no); | |
375 | if (event->retrieved == TW_AEN_NOT_RETRIEVED) | |
376 | tw_dev->aen_clobber = 1; | |
377 | } | |
378 | ||
75913d9b | 379 | aen = le16_to_cpu(header->status_block.error); |
1da177e4 LT |
380 | memset(event, 0, sizeof(TW_Event)); |
381 | ||
382 | event->severity = TW_SEV_OUT(header->status_block.severity__reserved); | |
383 | do_gettimeofday(&time); | |
384 | local_time = (u32)(time.tv_sec - (sys_tz.tz_minuteswest * 60)); | |
385 | event->time_stamp_sec = local_time; | |
386 | event->aen_code = aen; | |
387 | event->retrieved = TW_AEN_NOT_RETRIEVED; | |
388 | event->sequence_id = tw_dev->error_sequence_id; | |
389 | tw_dev->error_sequence_id++; | |
390 | ||
391 | /* Check for embedded error string */ | |
392 | error_str = &(header->err_specific_desc[strlen(header->err_specific_desc)+1]); | |
393 | ||
394 | header->err_specific_desc[sizeof(header->err_specific_desc) - 1] = '\0'; | |
395 | event->parameter_len = strlen(header->err_specific_desc); | |
75913d9b | 396 | memcpy(event->parameter_data, header->err_specific_desc, event->parameter_len + (error_str[0] == '\0' ? 0 : (1 + strlen(error_str)))); |
1da177e4 LT |
397 | if (event->severity != TW_AEN_SEVERITY_DEBUG) |
398 | printk(KERN_WARNING "3w-9xxx:%s AEN: %s (0x%02X:0x%04X): %s:%s.\n", | |
399 | host, | |
400 | twa_aen_severity_lookup(TW_SEV_OUT(header->status_block.severity__reserved)), | |
401 | TW_MESSAGE_SOURCE_CONTROLLER_EVENT, aen, | |
402 | error_str[0] == '\0' ? twa_string_lookup(twa_aen_table, aen) : error_str, | |
403 | header->err_specific_desc); | |
404 | else | |
405 | tw_dev->aen_count--; | |
406 | ||
407 | if ((tw_dev->error_index + 1) == TW_Q_LENGTH) | |
408 | tw_dev->event_queue_wrapped = 1; | |
409 | tw_dev->error_index = (tw_dev->error_index + 1 ) % TW_Q_LENGTH; | |
410 | } /* End twa_aen_queue_event() */ | |
411 | ||
412 | /* This function will read the aen queue from the isr */ | |
413 | static int twa_aen_read_queue(TW_Device_Extension *tw_dev, int request_id) | |
414 | { | |
415 | char cdb[TW_MAX_CDB_LEN]; | |
416 | TW_SG_Entry sglist[1]; | |
417 | TW_Command_Full *full_command_packet; | |
418 | int retval = 1; | |
419 | ||
420 | full_command_packet = tw_dev->command_packet_virt[request_id]; | |
421 | memset(full_command_packet, 0, sizeof(TW_Command_Full)); | |
422 | ||
423 | /* Initialize cdb */ | |
424 | memset(&cdb, 0, TW_MAX_CDB_LEN); | |
425 | cdb[0] = REQUEST_SENSE; /* opcode */ | |
426 | cdb[4] = TW_ALLOCATION_LENGTH; /* allocation length */ | |
427 | ||
428 | /* Initialize sglist */ | |
429 | memset(&sglist, 0, sizeof(TW_SG_Entry)); | |
430 | sglist[0].length = TW_SECTOR_SIZE; | |
431 | sglist[0].address = tw_dev->generic_buffer_phys[request_id]; | |
432 | ||
433 | /* Mark internal command */ | |
434 | tw_dev->srb[request_id] = NULL; | |
435 | ||
436 | /* Now post the command packet */ | |
437 | if (twa_scsiop_execute_scsi(tw_dev, request_id, cdb, 1, sglist)) { | |
438 | TW_PRINTK(tw_dev->host, TW_DRIVER, 0x4, "Post failed while reading AEN queue"); | |
439 | goto out; | |
440 | } | |
441 | retval = 0; | |
442 | out: | |
443 | return retval; | |
444 | } /* End twa_aen_read_queue() */ | |
445 | ||
446 | /* This function will look up an AEN severity string */ | |
447 | static char *twa_aen_severity_lookup(unsigned char severity_code) | |
448 | { | |
449 | char *retval = NULL; | |
450 | ||
451 | if ((severity_code < (unsigned char) TW_AEN_SEVERITY_ERROR) || | |
452 | (severity_code > (unsigned char) TW_AEN_SEVERITY_DEBUG)) | |
453 | goto out; | |
454 | ||
455 | retval = twa_aen_severity_table[severity_code]; | |
456 | out: | |
457 | return retval; | |
458 | } /* End twa_aen_severity_lookup() */ | |
459 | ||
460 | /* This function will sync firmware time with the host time */ | |
461 | static void twa_aen_sync_time(TW_Device_Extension *tw_dev, int request_id) | |
462 | { | |
463 | u32 schedulertime; | |
464 | struct timeval utc; | |
465 | TW_Command_Full *full_command_packet; | |
466 | TW_Command *command_packet; | |
467 | TW_Param_Apache *param; | |
468 | u32 local_time; | |
469 | ||
470 | /* Fill out the command packet */ | |
471 | full_command_packet = tw_dev->command_packet_virt[request_id]; | |
472 | memset(full_command_packet, 0, sizeof(TW_Command_Full)); | |
473 | command_packet = &full_command_packet->command.oldcommand; | |
474 | command_packet->opcode__sgloffset = TW_OPSGL_IN(2, TW_OP_SET_PARAM); | |
475 | command_packet->request_id = request_id; | |
75913d9b | 476 | command_packet->byte8_offset.param.sgl[0].address = TW_CPU_TO_SGL(tw_dev->generic_buffer_phys[request_id]); |
477 | command_packet->byte8_offset.param.sgl[0].length = cpu_to_le32(TW_SECTOR_SIZE); | |
1da177e4 | 478 | command_packet->size = TW_COMMAND_SIZE; |
75913d9b | 479 | command_packet->byte6_offset.parameter_count = cpu_to_le16(1); |
1da177e4 LT |
480 | |
481 | /* Setup the param */ | |
482 | param = (TW_Param_Apache *)tw_dev->generic_buffer_virt[request_id]; | |
483 | memset(param, 0, TW_SECTOR_SIZE); | |
75913d9b | 484 | param->table_id = cpu_to_le16(TW_TIMEKEEP_TABLE | 0x8000); /* Controller time keep table */ |
485 | param->parameter_id = cpu_to_le16(0x3); /* SchedulerTime */ | |
486 | param->parameter_size_bytes = cpu_to_le16(4); | |
1da177e4 LT |
487 | |
488 | /* Convert system time in UTC to local time seconds since last | |
489 | Sunday 12:00AM */ | |
490 | do_gettimeofday(&utc); | |
491 | local_time = (u32)(utc.tv_sec - (sys_tz.tz_minuteswest * 60)); | |
492 | schedulertime = local_time - (3 * 86400); | |
75913d9b | 493 | schedulertime = cpu_to_le32(schedulertime % 604800); |
1da177e4 LT |
494 | |
495 | memcpy(param->data, &schedulertime, sizeof(u32)); | |
496 | ||
497 | /* Mark internal command */ | |
498 | tw_dev->srb[request_id] = NULL; | |
499 | ||
500 | /* Now post the command */ | |
501 | twa_post_command_packet(tw_dev, request_id, 1); | |
502 | } /* End twa_aen_sync_time() */ | |
503 | ||
504 | /* This function will allocate memory and check if it is correctly aligned */ | |
505 | static int twa_allocate_memory(TW_Device_Extension *tw_dev, int size, int which) | |
506 | { | |
507 | int i; | |
508 | dma_addr_t dma_handle; | |
509 | unsigned long *cpu_addr; | |
510 | int retval = 1; | |
511 | ||
512 | cpu_addr = pci_alloc_consistent(tw_dev->tw_pci_dev, size*TW_Q_LENGTH, &dma_handle); | |
513 | if (!cpu_addr) { | |
514 | TW_PRINTK(tw_dev->host, TW_DRIVER, 0x5, "Memory allocation failed"); | |
515 | goto out; | |
516 | } | |
517 | ||
518 | if ((unsigned long)cpu_addr % (TW_ALIGNMENT_9000)) { | |
519 | TW_PRINTK(tw_dev->host, TW_DRIVER, 0x6, "Failed to allocate correctly aligned memory"); | |
520 | pci_free_consistent(tw_dev->tw_pci_dev, size*TW_Q_LENGTH, cpu_addr, dma_handle); | |
521 | goto out; | |
522 | } | |
523 | ||
524 | memset(cpu_addr, 0, size*TW_Q_LENGTH); | |
525 | ||
526 | for (i = 0; i < TW_Q_LENGTH; i++) { | |
527 | switch(which) { | |
528 | case 0: | |
529 | tw_dev->command_packet_phys[i] = dma_handle+(i*size); | |
530 | tw_dev->command_packet_virt[i] = (TW_Command_Full *)((unsigned char *)cpu_addr + (i*size)); | |
531 | break; | |
532 | case 1: | |
533 | tw_dev->generic_buffer_phys[i] = dma_handle+(i*size); | |
534 | tw_dev->generic_buffer_virt[i] = (unsigned long *)((unsigned char *)cpu_addr + (i*size)); | |
535 | break; | |
536 | } | |
537 | } | |
538 | retval = 0; | |
539 | out: | |
540 | return retval; | |
541 | } /* End twa_allocate_memory() */ | |
542 | ||
543 | /* This function will check the status register for unexpected bits */ | |
544 | static int twa_check_bits(u32 status_reg_value) | |
545 | { | |
546 | int retval = 1; | |
547 | ||
548 | if ((status_reg_value & TW_STATUS_EXPECTED_BITS) != TW_STATUS_EXPECTED_BITS) | |
549 | goto out; | |
550 | if ((status_reg_value & TW_STATUS_UNEXPECTED_BITS) != 0) | |
551 | goto out; | |
552 | ||
553 | retval = 0; | |
554 | out: | |
555 | return retval; | |
556 | } /* End twa_check_bits() */ | |
557 | ||
558 | /* This function will check the srl and decide if we are compatible */ | |
559 | static int twa_check_srl(TW_Device_Extension *tw_dev, int *flashed) | |
560 | { | |
561 | int retval = 1; | |
562 | unsigned short fw_on_ctlr_srl = 0, fw_on_ctlr_arch_id = 0; | |
563 | unsigned short fw_on_ctlr_branch = 0, fw_on_ctlr_build = 0; | |
564 | u32 init_connect_result = 0; | |
565 | ||
566 | if (twa_initconnection(tw_dev, TW_INIT_MESSAGE_CREDITS, | |
567 | TW_EXTENDED_INIT_CONNECT, TW_CURRENT_DRIVER_SRL, | |
568 | TW_9000_ARCH_ID, TW_CURRENT_DRIVER_BRANCH, | |
569 | TW_CURRENT_DRIVER_BUILD, &fw_on_ctlr_srl, | |
570 | &fw_on_ctlr_arch_id, &fw_on_ctlr_branch, | |
571 | &fw_on_ctlr_build, &init_connect_result)) { | |
572 | TW_PRINTK(tw_dev->host, TW_DRIVER, 0x7, "Initconnection failed while checking SRL"); | |
573 | goto out; | |
574 | } | |
575 | ||
4039c30e | 576 | tw_dev->tw_compat_info.working_srl = fw_on_ctlr_srl; |
577 | tw_dev->tw_compat_info.working_branch = fw_on_ctlr_branch; | |
578 | tw_dev->tw_compat_info.working_build = fw_on_ctlr_build; | |
1da177e4 LT |
579 | |
580 | /* Try base mode compatibility */ | |
581 | if (!(init_connect_result & TW_CTLR_FW_COMPATIBLE)) { | |
582 | if (twa_initconnection(tw_dev, TW_INIT_MESSAGE_CREDITS, | |
583 | TW_EXTENDED_INIT_CONNECT, | |
584 | TW_BASE_FW_SRL, TW_9000_ARCH_ID, | |
585 | TW_BASE_FW_BRANCH, TW_BASE_FW_BUILD, | |
586 | &fw_on_ctlr_srl, &fw_on_ctlr_arch_id, | |
587 | &fw_on_ctlr_branch, &fw_on_ctlr_build, | |
588 | &init_connect_result)) { | |
589 | TW_PRINTK(tw_dev->host, TW_DRIVER, 0xa, "Initconnection (base mode) failed while checking SRL"); | |
590 | goto out; | |
591 | } | |
592 | if (!(init_connect_result & TW_CTLR_FW_COMPATIBLE)) { | |
593 | if (TW_CURRENT_DRIVER_SRL > fw_on_ctlr_srl) { | |
594 | TW_PRINTK(tw_dev->host, TW_DRIVER, 0x32, "Firmware and driver incompatibility: please upgrade firmware"); | |
595 | } else { | |
596 | TW_PRINTK(tw_dev->host, TW_DRIVER, 0x33, "Firmware and driver incompatibility: please upgrade driver"); | |
597 | } | |
598 | goto out; | |
599 | } | |
4039c30e | 600 | tw_dev->tw_compat_info.working_srl = TW_BASE_FW_SRL; |
601 | tw_dev->tw_compat_info.working_branch = TW_BASE_FW_BRANCH; | |
602 | tw_dev->tw_compat_info.working_build = TW_BASE_FW_BUILD; | |
603 | } | |
604 | ||
605 | /* Load rest of compatibility struct */ | |
606 | strncpy(tw_dev->tw_compat_info.driver_version, TW_DRIVER_VERSION, strlen(TW_DRIVER_VERSION)); | |
607 | tw_dev->tw_compat_info.driver_srl_high = TW_CURRENT_DRIVER_SRL; | |
608 | tw_dev->tw_compat_info.driver_branch_high = TW_CURRENT_DRIVER_BRANCH; | |
609 | tw_dev->tw_compat_info.driver_build_high = TW_CURRENT_DRIVER_BUILD; | |
610 | tw_dev->tw_compat_info.driver_srl_low = TW_BASE_FW_SRL; | |
611 | tw_dev->tw_compat_info.driver_branch_low = TW_BASE_FW_BRANCH; | |
612 | tw_dev->tw_compat_info.driver_build_low = TW_BASE_FW_BUILD; | |
613 | tw_dev->tw_compat_info.fw_on_ctlr_srl = fw_on_ctlr_srl; | |
614 | tw_dev->tw_compat_info.fw_on_ctlr_branch = fw_on_ctlr_branch; | |
615 | tw_dev->tw_compat_info.fw_on_ctlr_build = fw_on_ctlr_build; | |
616 | ||
1da177e4 LT |
617 | retval = 0; |
618 | out: | |
619 | return retval; | |
620 | } /* End twa_check_srl() */ | |
621 | ||
622 | /* This function handles ioctl for the character device */ | |
623 | static int twa_chrdev_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) | |
624 | { | |
625 | long timeout; | |
626 | unsigned long *cpu_addr, data_buffer_length_adjusted = 0, flags = 0; | |
627 | dma_addr_t dma_handle; | |
628 | int request_id = 0; | |
629 | unsigned int sequence_id = 0; | |
630 | unsigned char event_index, start_index; | |
631 | TW_Ioctl_Driver_Command driver_command; | |
632 | TW_Ioctl_Buf_Apache *tw_ioctl; | |
633 | TW_Lock *tw_lock; | |
634 | TW_Command_Full *full_command_packet; | |
635 | TW_Compatibility_Info *tw_compat_info; | |
636 | TW_Event *event; | |
637 | struct timeval current_time; | |
638 | u32 current_time_ms; | |
639 | TW_Device_Extension *tw_dev = twa_device_extension_list[iminor(inode)]; | |
640 | int retval = TW_IOCTL_ERROR_OS_EFAULT; | |
641 | void __user *argp = (void __user *)arg; | |
642 | ||
643 | /* Only let one of these through at a time */ | |
a12e25bd | 644 | if (mutex_lock_interruptible(&tw_dev->ioctl_lock)) { |
1da177e4 LT |
645 | retval = TW_IOCTL_ERROR_OS_EINTR; |
646 | goto out; | |
647 | } | |
648 | ||
649 | /* First copy down the driver command */ | |
650 | if (copy_from_user(&driver_command, argp, sizeof(TW_Ioctl_Driver_Command))) | |
651 | goto out2; | |
652 | ||
653 | /* Check data buffer size */ | |
4039c30e | 654 | if (driver_command.buffer_length > TW_MAX_SECTORS * 2048) { |
1da177e4 LT |
655 | retval = TW_IOCTL_ERROR_OS_EINVAL; |
656 | goto out2; | |
657 | } | |
658 | ||
659 | /* Hardware can only do multiple of 512 byte transfers */ | |
660 | data_buffer_length_adjusted = (driver_command.buffer_length + 511) & ~511; | |
661 | ||
662 | /* Now allocate ioctl buf memory */ | |
663 | cpu_addr = dma_alloc_coherent(&tw_dev->tw_pci_dev->dev, data_buffer_length_adjusted+sizeof(TW_Ioctl_Buf_Apache) - 1, &dma_handle, GFP_KERNEL); | |
664 | if (!cpu_addr) { | |
665 | retval = TW_IOCTL_ERROR_OS_ENOMEM; | |
666 | goto out2; | |
667 | } | |
668 | ||
669 | tw_ioctl = (TW_Ioctl_Buf_Apache *)cpu_addr; | |
670 | ||
671 | /* Now copy down the entire ioctl */ | |
672 | if (copy_from_user(tw_ioctl, argp, driver_command.buffer_length + sizeof(TW_Ioctl_Buf_Apache) - 1)) | |
673 | goto out3; | |
674 | ||
675 | /* See which ioctl we are doing */ | |
676 | switch (cmd) { | |
677 | case TW_IOCTL_FIRMWARE_PASS_THROUGH: | |
678 | spin_lock_irqsave(tw_dev->host->host_lock, flags); | |
679 | twa_get_request_id(tw_dev, &request_id); | |
680 | ||
681 | /* Flag internal command */ | |
682 | tw_dev->srb[request_id] = NULL; | |
683 | ||
684 | /* Flag chrdev ioctl */ | |
685 | tw_dev->chrdev_request_id = request_id; | |
686 | ||
687 | full_command_packet = &tw_ioctl->firmware_command; | |
688 | ||
689 | /* Load request id and sglist for both command types */ | |
0e78d158 | 690 | twa_load_sgl(tw_dev, full_command_packet, request_id, dma_handle, data_buffer_length_adjusted); |
1da177e4 LT |
691 | |
692 | memcpy(tw_dev->command_packet_virt[request_id], &(tw_ioctl->firmware_command), sizeof(TW_Command_Full)); | |
693 | ||
694 | /* Now post the command packet to the controller */ | |
695 | twa_post_command_packet(tw_dev, request_id, 1); | |
696 | spin_unlock_irqrestore(tw_dev->host->host_lock, flags); | |
697 | ||
698 | timeout = TW_IOCTL_CHRDEV_TIMEOUT*HZ; | |
699 | ||
700 | /* Now wait for command to complete */ | |
701 | timeout = wait_event_timeout(tw_dev->ioctl_wqueue, tw_dev->chrdev_request_id == TW_IOCTL_CHRDEV_FREE, timeout); | |
702 | ||
1da177e4 LT |
703 | /* We timed out, and didn't get an interrupt */ |
704 | if (tw_dev->chrdev_request_id != TW_IOCTL_CHRDEV_FREE) { | |
705 | /* Now we need to reset the board */ | |
706 | printk(KERN_WARNING "3w-9xxx: scsi%d: WARNING: (0x%02X:0x%04X): Character ioctl (0x%x) timed out, resetting card.\n", | |
0e78d158 | 707 | tw_dev->host->host_no, TW_DRIVER, 0x37, |
1da177e4 LT |
708 | cmd); |
709 | retval = TW_IOCTL_ERROR_OS_EIO; | |
0e78d158 | 710 | twa_reset_device_extension(tw_dev); |
1da177e4 LT |
711 | goto out3; |
712 | } | |
713 | ||
714 | /* Now copy in the command packet response */ | |
715 | memcpy(&(tw_ioctl->firmware_command), tw_dev->command_packet_virt[request_id], sizeof(TW_Command_Full)); | |
716 | ||
717 | /* Now complete the io */ | |
718 | spin_lock_irqsave(tw_dev->host->host_lock, flags); | |
719 | tw_dev->posted_request_count--; | |
720 | tw_dev->state[request_id] = TW_S_COMPLETED; | |
721 | twa_free_request_id(tw_dev, request_id); | |
722 | spin_unlock_irqrestore(tw_dev->host->host_lock, flags); | |
723 | break; | |
724 | case TW_IOCTL_GET_COMPATIBILITY_INFO: | |
725 | tw_ioctl->driver_command.status = 0; | |
726 | /* Copy compatiblity struct into ioctl data buffer */ | |
727 | tw_compat_info = (TW_Compatibility_Info *)tw_ioctl->data_buffer; | |
4039c30e | 728 | memcpy(tw_compat_info, &tw_dev->tw_compat_info, sizeof(TW_Compatibility_Info)); |
1da177e4 LT |
729 | break; |
730 | case TW_IOCTL_GET_LAST_EVENT: | |
731 | if (tw_dev->event_queue_wrapped) { | |
732 | if (tw_dev->aen_clobber) { | |
733 | tw_ioctl->driver_command.status = TW_IOCTL_ERROR_STATUS_AEN_CLOBBER; | |
734 | tw_dev->aen_clobber = 0; | |
735 | } else | |
736 | tw_ioctl->driver_command.status = 0; | |
737 | } else { | |
738 | if (!tw_dev->error_index) { | |
739 | tw_ioctl->driver_command.status = TW_IOCTL_ERROR_STATUS_NO_MORE_EVENTS; | |
740 | break; | |
741 | } | |
742 | tw_ioctl->driver_command.status = 0; | |
743 | } | |
744 | event_index = (tw_dev->error_index - 1 + TW_Q_LENGTH) % TW_Q_LENGTH; | |
745 | memcpy(tw_ioctl->data_buffer, tw_dev->event_queue[event_index], sizeof(TW_Event)); | |
746 | tw_dev->event_queue[event_index]->retrieved = TW_AEN_RETRIEVED; | |
747 | break; | |
748 | case TW_IOCTL_GET_FIRST_EVENT: | |
749 | if (tw_dev->event_queue_wrapped) { | |
750 | if (tw_dev->aen_clobber) { | |
751 | tw_ioctl->driver_command.status = TW_IOCTL_ERROR_STATUS_AEN_CLOBBER; | |
752 | tw_dev->aen_clobber = 0; | |
753 | } else | |
754 | tw_ioctl->driver_command.status = 0; | |
755 | event_index = tw_dev->error_index; | |
756 | } else { | |
757 | if (!tw_dev->error_index) { | |
758 | tw_ioctl->driver_command.status = TW_IOCTL_ERROR_STATUS_NO_MORE_EVENTS; | |
759 | break; | |
760 | } | |
761 | tw_ioctl->driver_command.status = 0; | |
762 | event_index = 0; | |
763 | } | |
764 | memcpy(tw_ioctl->data_buffer, tw_dev->event_queue[event_index], sizeof(TW_Event)); | |
765 | tw_dev->event_queue[event_index]->retrieved = TW_AEN_RETRIEVED; | |
766 | break; | |
767 | case TW_IOCTL_GET_NEXT_EVENT: | |
768 | event = (TW_Event *)tw_ioctl->data_buffer; | |
769 | sequence_id = event->sequence_id; | |
770 | tw_ioctl->driver_command.status = 0; | |
771 | ||
772 | if (tw_dev->event_queue_wrapped) { | |
773 | if (tw_dev->aen_clobber) { | |
774 | tw_ioctl->driver_command.status = TW_IOCTL_ERROR_STATUS_AEN_CLOBBER; | |
775 | tw_dev->aen_clobber = 0; | |
776 | } | |
777 | start_index = tw_dev->error_index; | |
778 | } else { | |
779 | if (!tw_dev->error_index) { | |
780 | tw_ioctl->driver_command.status = TW_IOCTL_ERROR_STATUS_NO_MORE_EVENTS; | |
781 | break; | |
782 | } | |
783 | start_index = 0; | |
784 | } | |
785 | event_index = (start_index + sequence_id - tw_dev->event_queue[start_index]->sequence_id + 1) % TW_Q_LENGTH; | |
786 | ||
787 | if (!(tw_dev->event_queue[event_index]->sequence_id > sequence_id)) { | |
788 | if (tw_ioctl->driver_command.status == TW_IOCTL_ERROR_STATUS_AEN_CLOBBER) | |
789 | tw_dev->aen_clobber = 1; | |
790 | tw_ioctl->driver_command.status = TW_IOCTL_ERROR_STATUS_NO_MORE_EVENTS; | |
791 | break; | |
792 | } | |
793 | memcpy(tw_ioctl->data_buffer, tw_dev->event_queue[event_index], sizeof(TW_Event)); | |
794 | tw_dev->event_queue[event_index]->retrieved = TW_AEN_RETRIEVED; | |
795 | break; | |
796 | case TW_IOCTL_GET_PREVIOUS_EVENT: | |
797 | event = (TW_Event *)tw_ioctl->data_buffer; | |
798 | sequence_id = event->sequence_id; | |
799 | tw_ioctl->driver_command.status = 0; | |
800 | ||
801 | if (tw_dev->event_queue_wrapped) { | |
802 | if (tw_dev->aen_clobber) { | |
803 | tw_ioctl->driver_command.status = TW_IOCTL_ERROR_STATUS_AEN_CLOBBER; | |
804 | tw_dev->aen_clobber = 0; | |
805 | } | |
806 | start_index = tw_dev->error_index; | |
807 | } else { | |
808 | if (!tw_dev->error_index) { | |
809 | tw_ioctl->driver_command.status = TW_IOCTL_ERROR_STATUS_NO_MORE_EVENTS; | |
810 | break; | |
811 | } | |
812 | start_index = 0; | |
813 | } | |
814 | event_index = (start_index + sequence_id - tw_dev->event_queue[start_index]->sequence_id - 1) % TW_Q_LENGTH; | |
815 | ||
816 | if (!(tw_dev->event_queue[event_index]->sequence_id < sequence_id)) { | |
817 | if (tw_ioctl->driver_command.status == TW_IOCTL_ERROR_STATUS_AEN_CLOBBER) | |
818 | tw_dev->aen_clobber = 1; | |
819 | tw_ioctl->driver_command.status = TW_IOCTL_ERROR_STATUS_NO_MORE_EVENTS; | |
820 | break; | |
821 | } | |
822 | memcpy(tw_ioctl->data_buffer, tw_dev->event_queue[event_index], sizeof(TW_Event)); | |
823 | tw_dev->event_queue[event_index]->retrieved = TW_AEN_RETRIEVED; | |
824 | break; | |
825 | case TW_IOCTL_GET_LOCK: | |
826 | tw_lock = (TW_Lock *)tw_ioctl->data_buffer; | |
827 | do_gettimeofday(¤t_time); | |
828 | current_time_ms = (current_time.tv_sec * 1000) + (current_time.tv_usec / 1000); | |
829 | ||
830 | if ((tw_lock->force_flag == 1) || (tw_dev->ioctl_sem_lock == 0) || (current_time_ms >= tw_dev->ioctl_msec)) { | |
831 | tw_dev->ioctl_sem_lock = 1; | |
832 | tw_dev->ioctl_msec = current_time_ms + tw_lock->timeout_msec; | |
833 | tw_ioctl->driver_command.status = 0; | |
834 | tw_lock->time_remaining_msec = tw_lock->timeout_msec; | |
835 | } else { | |
836 | tw_ioctl->driver_command.status = TW_IOCTL_ERROR_STATUS_LOCKED; | |
837 | tw_lock->time_remaining_msec = tw_dev->ioctl_msec - current_time_ms; | |
838 | } | |
839 | break; | |
840 | case TW_IOCTL_RELEASE_LOCK: | |
841 | if (tw_dev->ioctl_sem_lock == 1) { | |
842 | tw_dev->ioctl_sem_lock = 0; | |
843 | tw_ioctl->driver_command.status = 0; | |
844 | } else { | |
845 | tw_ioctl->driver_command.status = TW_IOCTL_ERROR_STATUS_NOT_LOCKED; | |
846 | } | |
847 | break; | |
848 | default: | |
849 | retval = TW_IOCTL_ERROR_OS_ENOTTY; | |
850 | goto out3; | |
851 | } | |
852 | ||
853 | /* Now copy the entire response to userspace */ | |
854 | if (copy_to_user(argp, tw_ioctl, sizeof(TW_Ioctl_Buf_Apache) + driver_command.buffer_length - 1) == 0) | |
855 | retval = 0; | |
856 | out3: | |
857 | /* Now free ioctl buf memory */ | |
858 | dma_free_coherent(&tw_dev->tw_pci_dev->dev, data_buffer_length_adjusted+sizeof(TW_Ioctl_Buf_Apache) - 1, cpu_addr, dma_handle); | |
859 | out2: | |
a12e25bd | 860 | mutex_unlock(&tw_dev->ioctl_lock); |
1da177e4 LT |
861 | out: |
862 | return retval; | |
863 | } /* End twa_chrdev_ioctl() */ | |
864 | ||
865 | /* This function handles open for the character device */ | |
f2b9857e | 866 | /* NOTE that this function will race with remove. */ |
1da177e4 LT |
867 | static int twa_chrdev_open(struct inode *inode, struct file *file) |
868 | { | |
869 | unsigned int minor_number; | |
870 | int retval = TW_IOCTL_ERROR_OS_ENODEV; | |
871 | ||
f2b9857e | 872 | cycle_kernel_lock(); |
1da177e4 LT |
873 | minor_number = iminor(inode); |
874 | if (minor_number >= twa_device_extension_count) | |
875 | goto out; | |
876 | retval = 0; | |
877 | out: | |
878 | return retval; | |
879 | } /* End twa_chrdev_open() */ | |
880 | ||
881 | /* This function will print readable messages from status register errors */ | |
882 | static int twa_decode_bits(TW_Device_Extension *tw_dev, u32 status_reg_value) | |
883 | { | |
884 | int retval = 1; | |
885 | ||
886 | /* Check for various error conditions and handle them appropriately */ | |
887 | if (status_reg_value & TW_STATUS_PCI_PARITY_ERROR) { | |
888 | TW_PRINTK(tw_dev->host, TW_DRIVER, 0xc, "PCI Parity Error: clearing"); | |
889 | writel(TW_CONTROL_CLEAR_PARITY_ERROR, TW_CONTROL_REG_ADDR(tw_dev)); | |
890 | } | |
891 | ||
892 | if (status_reg_value & TW_STATUS_PCI_ABORT) { | |
893 | TW_PRINTK(tw_dev->host, TW_DRIVER, 0xd, "PCI Abort: clearing"); | |
894 | writel(TW_CONTROL_CLEAR_PCI_ABORT, TW_CONTROL_REG_ADDR(tw_dev)); | |
895 | pci_write_config_word(tw_dev->tw_pci_dev, PCI_STATUS, TW_PCI_CLEAR_PCI_ABORT); | |
896 | } | |
897 | ||
898 | if (status_reg_value & TW_STATUS_QUEUE_ERROR) { | |
0e78d158 | 899 | if (((tw_dev->tw_pci_dev->device != PCI_DEVICE_ID_3WARE_9650SE) && |
900 | (tw_dev->tw_pci_dev->device != PCI_DEVICE_ID_3WARE_9690SA)) || | |
901 | (!test_bit(TW_IN_RESET, &tw_dev->flags))) | |
4039c30e | 902 | TW_PRINTK(tw_dev->host, TW_DRIVER, 0xe, "Controller Queue Error: clearing"); |
1da177e4 LT |
903 | writel(TW_CONTROL_CLEAR_QUEUE_ERROR, TW_CONTROL_REG_ADDR(tw_dev)); |
904 | } | |
905 | ||
1da177e4 LT |
906 | if (status_reg_value & TW_STATUS_MICROCONTROLLER_ERROR) { |
907 | if (tw_dev->reset_print == 0) { | |
908 | TW_PRINTK(tw_dev->host, TW_DRIVER, 0x10, "Microcontroller Error: clearing"); | |
909 | tw_dev->reset_print = 1; | |
910 | } | |
911 | goto out; | |
912 | } | |
913 | retval = 0; | |
914 | out: | |
915 | return retval; | |
916 | } /* End twa_decode_bits() */ | |
917 | ||
918 | /* This function will empty the response queue */ | |
919 | static int twa_empty_response_queue(TW_Device_Extension *tw_dev) | |
920 | { | |
921 | u32 status_reg_value, response_que_value; | |
922 | int count = 0, retval = 1; | |
923 | ||
924 | status_reg_value = readl(TW_STATUS_REG_ADDR(tw_dev)); | |
925 | ||
926 | while (((status_reg_value & TW_STATUS_RESPONSE_QUEUE_EMPTY) == 0) && (count < TW_MAX_RESPONSE_DRAIN)) { | |
927 | response_que_value = readl(TW_RESPONSE_QUEUE_REG_ADDR(tw_dev)); | |
928 | status_reg_value = readl(TW_STATUS_REG_ADDR(tw_dev)); | |
929 | count++; | |
930 | } | |
931 | if (count == TW_MAX_RESPONSE_DRAIN) | |
932 | goto out; | |
933 | ||
934 | retval = 0; | |
935 | out: | |
936 | return retval; | |
937 | } /* End twa_empty_response_queue() */ | |
938 | ||
49bfd8db | 939 | /* This function will clear the pchip/response queue on 9550SX */ |
940 | static int twa_empty_response_queue_large(TW_Device_Extension *tw_dev) | |
941 | { | |
75913d9b | 942 | u32 response_que_value = 0; |
943 | unsigned long before; | |
944 | int retval = 1; | |
49bfd8db | 945 | |
0e78d158 | 946 | if (tw_dev->tw_pci_dev->device != PCI_DEVICE_ID_3WARE_9000) { |
75913d9b | 947 | before = jiffies; |
948 | while ((response_que_value & TW_9550SX_DRAIN_COMPLETED) != TW_9550SX_DRAIN_COMPLETED) { | |
49bfd8db | 949 | response_que_value = readl(TW_RESPONSE_QUEUE_REG_ADDR_LARGE(tw_dev)); |
4039c30e | 950 | msleep(1); |
75913d9b | 951 | if (time_after(jiffies, before + HZ * 30)) |
49bfd8db | 952 | goto out; |
49bfd8db | 953 | } |
75913d9b | 954 | /* P-chip settle time */ |
955 | msleep(500); | |
49bfd8db | 956 | retval = 0; |
957 | } else | |
958 | retval = 0; | |
959 | out: | |
960 | return retval; | |
961 | } /* End twa_empty_response_queue_large() */ | |
962 | ||
1da177e4 LT |
963 | /* This function passes sense keys from firmware to scsi layer */ |
964 | static int twa_fill_sense(TW_Device_Extension *tw_dev, int request_id, int copy_sense, int print_host) | |
965 | { | |
966 | TW_Command_Full *full_command_packet; | |
967 | unsigned short error; | |
968 | int retval = 1; | |
969 | char *error_str; | |
970 | ||
971 | full_command_packet = tw_dev->command_packet_virt[request_id]; | |
972 | ||
973 | /* Check for embedded error string */ | |
974 | error_str = &(full_command_packet->header.err_specific_desc[strlen(full_command_packet->header.err_specific_desc) + 1]); | |
975 | ||
976 | /* Don't print error for Logical unit not supported during rollcall */ | |
75913d9b | 977 | error = le16_to_cpu(full_command_packet->header.status_block.error); |
1da177e4 LT |
978 | if ((error != TW_ERROR_LOGICAL_UNIT_NOT_SUPPORTED) && (error != TW_ERROR_UNIT_OFFLINE)) { |
979 | if (print_host) | |
980 | printk(KERN_WARNING "3w-9xxx: scsi%d: ERROR: (0x%02X:0x%04X): %s:%s.\n", | |
981 | tw_dev->host->host_no, | |
982 | TW_MESSAGE_SOURCE_CONTROLLER_ERROR, | |
983 | full_command_packet->header.status_block.error, | |
984 | error_str[0] == '\0' ? | |
985 | twa_string_lookup(twa_error_table, | |
986 | full_command_packet->header.status_block.error) : error_str, | |
987 | full_command_packet->header.err_specific_desc); | |
988 | else | |
989 | printk(KERN_WARNING "3w-9xxx: ERROR: (0x%02X:0x%04X): %s:%s.\n", | |
990 | TW_MESSAGE_SOURCE_CONTROLLER_ERROR, | |
991 | full_command_packet->header.status_block.error, | |
992 | error_str[0] == '\0' ? | |
993 | twa_string_lookup(twa_error_table, | |
994 | full_command_packet->header.status_block.error) : error_str, | |
995 | full_command_packet->header.err_specific_desc); | |
996 | } | |
997 | ||
998 | if (copy_sense) { | |
999 | memcpy(tw_dev->srb[request_id]->sense_buffer, full_command_packet->header.sense_data, TW_SENSE_DATA_LENGTH); | |
1000 | tw_dev->srb[request_id]->result = (full_command_packet->command.newcommand.status << 1); | |
1001 | retval = TW_ISR_DONT_RESULT; | |
1002 | goto out; | |
1003 | } | |
1004 | retval = 0; | |
1005 | out: | |
1006 | return retval; | |
1007 | } /* End twa_fill_sense() */ | |
1008 | ||
1009 | /* This function will free up device extension resources */ | |
1010 | static void twa_free_device_extension(TW_Device_Extension *tw_dev) | |
1011 | { | |
1012 | if (tw_dev->command_packet_virt[0]) | |
1013 | pci_free_consistent(tw_dev->tw_pci_dev, | |
1014 | sizeof(TW_Command_Full)*TW_Q_LENGTH, | |
1015 | tw_dev->command_packet_virt[0], | |
1016 | tw_dev->command_packet_phys[0]); | |
1017 | ||
1018 | if (tw_dev->generic_buffer_virt[0]) | |
1019 | pci_free_consistent(tw_dev->tw_pci_dev, | |
1020 | TW_SECTOR_SIZE*TW_Q_LENGTH, | |
1021 | tw_dev->generic_buffer_virt[0], | |
1022 | tw_dev->generic_buffer_phys[0]); | |
1023 | ||
c9475cb0 | 1024 | kfree(tw_dev->event_queue[0]); |
1da177e4 LT |
1025 | } /* End twa_free_device_extension() */ |
1026 | ||
1027 | /* This function will free a request id */ | |
1028 | static void twa_free_request_id(TW_Device_Extension *tw_dev, int request_id) | |
1029 | { | |
1030 | tw_dev->free_queue[tw_dev->free_tail] = request_id; | |
1031 | tw_dev->state[request_id] = TW_S_FINISHED; | |
1032 | tw_dev->free_tail = (tw_dev->free_tail + 1) % TW_Q_LENGTH; | |
1033 | } /* End twa_free_request_id() */ | |
1034 | ||
7f927fcc | 1035 | /* This function will get parameter table entries from the firmware */ |
1da177e4 LT |
1036 | static void *twa_get_param(TW_Device_Extension *tw_dev, int request_id, int table_id, int parameter_id, int parameter_size_bytes) |
1037 | { | |
1038 | TW_Command_Full *full_command_packet; | |
1039 | TW_Command *command_packet; | |
1040 | TW_Param_Apache *param; | |
1041 | unsigned long param_value; | |
1042 | void *retval = NULL; | |
1043 | ||
1044 | /* Setup the command packet */ | |
1045 | full_command_packet = tw_dev->command_packet_virt[request_id]; | |
1046 | memset(full_command_packet, 0, sizeof(TW_Command_Full)); | |
1047 | command_packet = &full_command_packet->command.oldcommand; | |
1048 | ||
1049 | command_packet->opcode__sgloffset = TW_OPSGL_IN(2, TW_OP_GET_PARAM); | |
1050 | command_packet->size = TW_COMMAND_SIZE; | |
1051 | command_packet->request_id = request_id; | |
75913d9b | 1052 | command_packet->byte6_offset.block_count = cpu_to_le16(1); |
1da177e4 LT |
1053 | |
1054 | /* Now setup the param */ | |
1055 | param = (TW_Param_Apache *)tw_dev->generic_buffer_virt[request_id]; | |
1056 | memset(param, 0, TW_SECTOR_SIZE); | |
75913d9b | 1057 | param->table_id = cpu_to_le16(table_id | 0x8000); |
1058 | param->parameter_id = cpu_to_le16(parameter_id); | |
1059 | param->parameter_size_bytes = cpu_to_le16(parameter_size_bytes); | |
1da177e4 LT |
1060 | param_value = tw_dev->generic_buffer_phys[request_id]; |
1061 | ||
75913d9b | 1062 | command_packet->byte8_offset.param.sgl[0].address = TW_CPU_TO_SGL(param_value); |
1063 | command_packet->byte8_offset.param.sgl[0].length = cpu_to_le32(TW_SECTOR_SIZE); | |
1da177e4 LT |
1064 | |
1065 | /* Post the command packet to the board */ | |
1066 | twa_post_command_packet(tw_dev, request_id, 1); | |
1067 | ||
1068 | /* Poll for completion */ | |
1069 | if (twa_poll_response(tw_dev, request_id, 30)) | |
1070 | TW_PRINTK(tw_dev->host, TW_DRIVER, 0x13, "No valid response during get param") | |
1071 | else | |
1072 | retval = (void *)&(param->data[0]); | |
1073 | ||
1074 | tw_dev->posted_request_count--; | |
1075 | tw_dev->state[request_id] = TW_S_INITIAL; | |
1076 | ||
1077 | return retval; | |
1078 | } /* End twa_get_param() */ | |
1079 | ||
1080 | /* This function will assign an available request id */ | |
1081 | static void twa_get_request_id(TW_Device_Extension *tw_dev, int *request_id) | |
1082 | { | |
1083 | *request_id = tw_dev->free_queue[tw_dev->free_head]; | |
1084 | tw_dev->free_head = (tw_dev->free_head + 1) % TW_Q_LENGTH; | |
1085 | tw_dev->state[*request_id] = TW_S_STARTED; | |
1086 | } /* End twa_get_request_id() */ | |
1087 | ||
1088 | /* This function will send an initconnection command to controller */ | |
1089 | static int twa_initconnection(TW_Device_Extension *tw_dev, int message_credits, | |
1090 | u32 set_features, unsigned short current_fw_srl, | |
1091 | unsigned short current_fw_arch_id, | |
1092 | unsigned short current_fw_branch, | |
1093 | unsigned short current_fw_build, | |
1094 | unsigned short *fw_on_ctlr_srl, | |
1095 | unsigned short *fw_on_ctlr_arch_id, | |
1096 | unsigned short *fw_on_ctlr_branch, | |
1097 | unsigned short *fw_on_ctlr_build, | |
1098 | u32 *init_connect_result) | |
1099 | { | |
1100 | TW_Command_Full *full_command_packet; | |
1101 | TW_Initconnect *tw_initconnect; | |
1102 | int request_id = 0, retval = 1; | |
1103 | ||
1104 | /* Initialize InitConnection command packet */ | |
1105 | full_command_packet = tw_dev->command_packet_virt[request_id]; | |
1106 | memset(full_command_packet, 0, sizeof(TW_Command_Full)); | |
1107 | full_command_packet->header.header_desc.size_header = 128; | |
1108 | ||
1109 | tw_initconnect = (TW_Initconnect *)&full_command_packet->command.oldcommand; | |
1110 | tw_initconnect->opcode__reserved = TW_OPRES_IN(0, TW_OP_INIT_CONNECTION); | |
1111 | tw_initconnect->request_id = request_id; | |
75913d9b | 1112 | tw_initconnect->message_credits = cpu_to_le16(message_credits); |
1da177e4 LT |
1113 | tw_initconnect->features = set_features; |
1114 | ||
1115 | /* Turn on 64-bit sgl support if we need to */ | |
1116 | tw_initconnect->features |= sizeof(dma_addr_t) > 4 ? 1 : 0; | |
1117 | ||
75913d9b | 1118 | tw_initconnect->features = cpu_to_le32(tw_initconnect->features); |
1119 | ||
1da177e4 LT |
1120 | if (set_features & TW_EXTENDED_INIT_CONNECT) { |
1121 | tw_initconnect->size = TW_INIT_COMMAND_PACKET_SIZE_EXTENDED; | |
75913d9b | 1122 | tw_initconnect->fw_srl = cpu_to_le16(current_fw_srl); |
1123 | tw_initconnect->fw_arch_id = cpu_to_le16(current_fw_arch_id); | |
1124 | tw_initconnect->fw_branch = cpu_to_le16(current_fw_branch); | |
1125 | tw_initconnect->fw_build = cpu_to_le16(current_fw_build); | |
1da177e4 LT |
1126 | } else |
1127 | tw_initconnect->size = TW_INIT_COMMAND_PACKET_SIZE; | |
1128 | ||
1129 | /* Send command packet to the board */ | |
1130 | twa_post_command_packet(tw_dev, request_id, 1); | |
1131 | ||
1132 | /* Poll for completion */ | |
1133 | if (twa_poll_response(tw_dev, request_id, 30)) { | |
1134 | TW_PRINTK(tw_dev->host, TW_DRIVER, 0x15, "No valid response during init connection"); | |
1135 | } else { | |
1136 | if (set_features & TW_EXTENDED_INIT_CONNECT) { | |
75913d9b | 1137 | *fw_on_ctlr_srl = le16_to_cpu(tw_initconnect->fw_srl); |
1138 | *fw_on_ctlr_arch_id = le16_to_cpu(tw_initconnect->fw_arch_id); | |
1139 | *fw_on_ctlr_branch = le16_to_cpu(tw_initconnect->fw_branch); | |
1140 | *fw_on_ctlr_build = le16_to_cpu(tw_initconnect->fw_build); | |
1141 | *init_connect_result = le32_to_cpu(tw_initconnect->result); | |
1da177e4 LT |
1142 | } |
1143 | retval = 0; | |
1144 | } | |
1145 | ||
1146 | tw_dev->posted_request_count--; | |
1147 | tw_dev->state[request_id] = TW_S_INITIAL; | |
1148 | ||
1149 | return retval; | |
1150 | } /* End twa_initconnection() */ | |
1151 | ||
1152 | /* This function will initialize the fields of a device extension */ | |
1153 | static int twa_initialize_device_extension(TW_Device_Extension *tw_dev) | |
1154 | { | |
1155 | int i, retval = 1; | |
1156 | ||
1157 | /* Initialize command packet buffers */ | |
1158 | if (twa_allocate_memory(tw_dev, sizeof(TW_Command_Full), 0)) { | |
1159 | TW_PRINTK(tw_dev->host, TW_DRIVER, 0x16, "Command packet memory allocation failed"); | |
1160 | goto out; | |
1161 | } | |
1162 | ||
1163 | /* Initialize generic buffer */ | |
1164 | if (twa_allocate_memory(tw_dev, TW_SECTOR_SIZE, 1)) { | |
1165 | TW_PRINTK(tw_dev->host, TW_DRIVER, 0x17, "Generic memory allocation failed"); | |
1166 | goto out; | |
1167 | } | |
1168 | ||
1169 | /* Allocate event info space */ | |
dd00cc48 | 1170 | tw_dev->event_queue[0] = kcalloc(TW_Q_LENGTH, sizeof(TW_Event), GFP_KERNEL); |
1da177e4 LT |
1171 | if (!tw_dev->event_queue[0]) { |
1172 | TW_PRINTK(tw_dev->host, TW_DRIVER, 0x18, "Event info memory allocation failed"); | |
1173 | goto out; | |
1174 | } | |
1175 | ||
1da177e4 LT |
1176 | |
1177 | for (i = 0; i < TW_Q_LENGTH; i++) { | |
1178 | tw_dev->event_queue[i] = (TW_Event *)((unsigned char *)tw_dev->event_queue[0] + (i * sizeof(TW_Event))); | |
1179 | tw_dev->free_queue[i] = i; | |
1180 | tw_dev->state[i] = TW_S_INITIAL; | |
1181 | } | |
1182 | ||
1183 | tw_dev->pending_head = TW_Q_START; | |
1184 | tw_dev->pending_tail = TW_Q_START; | |
1185 | tw_dev->free_head = TW_Q_START; | |
1186 | tw_dev->free_tail = TW_Q_START; | |
1187 | tw_dev->error_sequence_id = 1; | |
1188 | tw_dev->chrdev_request_id = TW_IOCTL_CHRDEV_FREE; | |
1189 | ||
a12e25bd | 1190 | mutex_init(&tw_dev->ioctl_lock); |
1da177e4 LT |
1191 | init_waitqueue_head(&tw_dev->ioctl_wqueue); |
1192 | ||
1193 | retval = 0; | |
1194 | out: | |
1195 | return retval; | |
1196 | } /* End twa_initialize_device_extension() */ | |
1197 | ||
1198 | /* This function is the interrupt service routine */ | |
7d12e780 | 1199 | static irqreturn_t twa_interrupt(int irq, void *dev_instance) |
1da177e4 LT |
1200 | { |
1201 | int request_id, error = 0; | |
1202 | u32 status_reg_value; | |
1203 | TW_Response_Queue response_que; | |
1204 | TW_Command_Full *full_command_packet; | |
1da177e4 LT |
1205 | TW_Device_Extension *tw_dev = (TW_Device_Extension *)dev_instance; |
1206 | int handled = 0; | |
1207 | ||
1208 | /* Get the per adapter lock */ | |
1209 | spin_lock(tw_dev->host->host_lock); | |
1210 | ||
1211 | /* Read the registers */ | |
1212 | status_reg_value = readl(TW_STATUS_REG_ADDR(tw_dev)); | |
1213 | ||
1214 | /* Check if this is our interrupt, otherwise bail */ | |
1215 | if (!(status_reg_value & TW_STATUS_VALID_INTERRUPT)) | |
1216 | goto twa_interrupt_bail; | |
1217 | ||
1218 | handled = 1; | |
1219 | ||
4039c30e | 1220 | /* If we are resetting, bail */ |
1221 | if (test_bit(TW_IN_RESET, &tw_dev->flags)) | |
1222 | goto twa_interrupt_bail; | |
1223 | ||
1da177e4 LT |
1224 | /* Check controller for errors */ |
1225 | if (twa_check_bits(status_reg_value)) { | |
1226 | if (twa_decode_bits(tw_dev, status_reg_value)) { | |
1227 | TW_CLEAR_ALL_INTERRUPTS(tw_dev); | |
1228 | goto twa_interrupt_bail; | |
1229 | } | |
1230 | } | |
1231 | ||
1232 | /* Handle host interrupt */ | |
1233 | if (status_reg_value & TW_STATUS_HOST_INTERRUPT) | |
1234 | TW_CLEAR_HOST_INTERRUPT(tw_dev); | |
1235 | ||
1236 | /* Handle attention interrupt */ | |
1237 | if (status_reg_value & TW_STATUS_ATTENTION_INTERRUPT) { | |
1238 | TW_CLEAR_ATTENTION_INTERRUPT(tw_dev); | |
1239 | if (!(test_and_set_bit(TW_IN_ATTENTION_LOOP, &tw_dev->flags))) { | |
1240 | twa_get_request_id(tw_dev, &request_id); | |
1241 | ||
1242 | error = twa_aen_read_queue(tw_dev, request_id); | |
1243 | if (error) { | |
1244 | tw_dev->state[request_id] = TW_S_COMPLETED; | |
1245 | twa_free_request_id(tw_dev, request_id); | |
1246 | clear_bit(TW_IN_ATTENTION_LOOP, &tw_dev->flags); | |
1247 | } | |
1248 | } | |
1249 | } | |
1250 | ||
1251 | /* Handle command interrupt */ | |
1252 | if (status_reg_value & TW_STATUS_COMMAND_INTERRUPT) { | |
1253 | TW_MASK_COMMAND_INTERRUPT(tw_dev); | |
1254 | /* Drain as many pending commands as we can */ | |
1255 | while (tw_dev->pending_request_count > 0) { | |
1256 | request_id = tw_dev->pending_queue[tw_dev->pending_head]; | |
1257 | if (tw_dev->state[request_id] != TW_S_PENDING) { | |
1258 | TW_PRINTK(tw_dev->host, TW_DRIVER, 0x19, "Found request id that wasn't pending"); | |
1259 | TW_CLEAR_ALL_INTERRUPTS(tw_dev); | |
1260 | goto twa_interrupt_bail; | |
1261 | } | |
1262 | if (twa_post_command_packet(tw_dev, request_id, 1)==0) { | |
1263 | tw_dev->pending_head = (tw_dev->pending_head + 1) % TW_Q_LENGTH; | |
1264 | tw_dev->pending_request_count--; | |
1265 | } else { | |
1266 | /* If we get here, we will continue re-posting on the next command interrupt */ | |
1267 | break; | |
1268 | } | |
1269 | } | |
1270 | } | |
1271 | ||
1272 | /* Handle response interrupt */ | |
1273 | if (status_reg_value & TW_STATUS_RESPONSE_INTERRUPT) { | |
1274 | ||
1275 | /* Drain the response queue from the board */ | |
1276 | while ((status_reg_value & TW_STATUS_RESPONSE_QUEUE_EMPTY) == 0) { | |
1277 | /* Complete the response */ | |
1278 | response_que.value = readl(TW_RESPONSE_QUEUE_REG_ADDR(tw_dev)); | |
1279 | request_id = TW_RESID_OUT(response_que.response_id); | |
1280 | full_command_packet = tw_dev->command_packet_virt[request_id]; | |
1281 | error = 0; | |
1da177e4 LT |
1282 | /* Check for command packet errors */ |
1283 | if (full_command_packet->command.newcommand.status != 0) { | |
9bcf0910 | 1284 | if (tw_dev->srb[request_id] != NULL) { |
1da177e4 LT |
1285 | error = twa_fill_sense(tw_dev, request_id, 1, 1); |
1286 | } else { | |
1287 | /* Skip ioctl error prints */ | |
1288 | if (request_id != tw_dev->chrdev_request_id) { | |
1289 | error = twa_fill_sense(tw_dev, request_id, 0, 1); | |
1290 | } | |
1291 | } | |
1292 | } | |
1293 | ||
1294 | /* Check for correct state */ | |
1295 | if (tw_dev->state[request_id] != TW_S_POSTED) { | |
9bcf0910 | 1296 | if (tw_dev->srb[request_id] != NULL) { |
1da177e4 LT |
1297 | TW_PRINTK(tw_dev->host, TW_DRIVER, 0x1a, "Received a request id that wasn't posted"); |
1298 | TW_CLEAR_ALL_INTERRUPTS(tw_dev); | |
1299 | goto twa_interrupt_bail; | |
1300 | } | |
1301 | } | |
1302 | ||
1303 | /* Check for internal command completion */ | |
9bcf0910 | 1304 | if (tw_dev->srb[request_id] == NULL) { |
1da177e4 LT |
1305 | if (request_id != tw_dev->chrdev_request_id) { |
1306 | if (twa_aen_complete(tw_dev, request_id)) | |
1307 | TW_PRINTK(tw_dev->host, TW_DRIVER, 0x1b, "Error completing AEN during attention interrupt"); | |
1308 | } else { | |
1309 | tw_dev->chrdev_request_id = TW_IOCTL_CHRDEV_FREE; | |
1310 | wake_up(&tw_dev->ioctl_wqueue); | |
1311 | } | |
1312 | } else { | |
0debe01d FT |
1313 | struct scsi_cmnd *cmd; |
1314 | ||
1315 | cmd = tw_dev->srb[request_id]; | |
1316 | ||
1da177e4 LT |
1317 | twa_scsiop_execute_scsi_complete(tw_dev, request_id); |
1318 | /* If no error command was a success */ | |
1319 | if (error == 0) { | |
0debe01d | 1320 | cmd->result = (DID_OK << 16); |
1da177e4 LT |
1321 | } |
1322 | ||
1323 | /* If error, command failed */ | |
1324 | if (error == 1) { | |
1325 | /* Ask for a host reset */ | |
0debe01d | 1326 | cmd->result = (DID_OK << 16) | (CHECK_CONDITION << 1); |
1da177e4 LT |
1327 | } |
1328 | ||
1329 | /* Report residual bytes for single sgl */ | |
0debe01d FT |
1330 | if ((scsi_sg_count(cmd) <= 1) && (full_command_packet->command.newcommand.status == 0)) { |
1331 | if (full_command_packet->command.newcommand.sg_list[0].length < scsi_bufflen(tw_dev->srb[request_id])) | |
1332 | scsi_set_resid(cmd, scsi_bufflen(cmd) - full_command_packet->command.newcommand.sg_list[0].length); | |
1da177e4 LT |
1333 | } |
1334 | ||
1335 | /* Now complete the io */ | |
1336 | tw_dev->state[request_id] = TW_S_COMPLETED; | |
1337 | twa_free_request_id(tw_dev, request_id); | |
1338 | tw_dev->posted_request_count--; | |
1339 | tw_dev->srb[request_id]->scsi_done(tw_dev->srb[request_id]); | |
1340 | twa_unmap_scsi_data(tw_dev, request_id); | |
1341 | } | |
1342 | ||
1343 | /* Check for valid status after each drain */ | |
1344 | status_reg_value = readl(TW_STATUS_REG_ADDR(tw_dev)); | |
1345 | if (twa_check_bits(status_reg_value)) { | |
1346 | if (twa_decode_bits(tw_dev, status_reg_value)) { | |
1347 | TW_CLEAR_ALL_INTERRUPTS(tw_dev); | |
1348 | goto twa_interrupt_bail; | |
1349 | } | |
1350 | } | |
1351 | } | |
1352 | } | |
1353 | ||
1354 | twa_interrupt_bail: | |
1355 | spin_unlock(tw_dev->host->host_lock); | |
1356 | return IRQ_RETVAL(handled); | |
1357 | } /* End twa_interrupt() */ | |
1358 | ||
1359 | /* This function will load the request id and various sgls for ioctls */ | |
0e78d158 | 1360 | static void twa_load_sgl(TW_Device_Extension *tw_dev, TW_Command_Full *full_command_packet, int request_id, dma_addr_t dma_handle, int length) |
1da177e4 LT |
1361 | { |
1362 | TW_Command *oldcommand; | |
1363 | TW_Command_Apache *newcommand; | |
1364 | TW_SG_Entry *sgl; | |
0e78d158 | 1365 | unsigned int pae = 0; |
1366 | ||
1367 | if ((sizeof(long) < 8) && (sizeof(dma_addr_t) > 4)) | |
1368 | pae = 1; | |
1da177e4 LT |
1369 | |
1370 | if (TW_OP_OUT(full_command_packet->command.newcommand.opcode__reserved) == TW_OP_EXECUTE_SCSI) { | |
1371 | newcommand = &full_command_packet->command.newcommand; | |
4039c30e | 1372 | newcommand->request_id__lunl = |
1373 | cpu_to_le16(TW_REQ_LUN_IN(TW_LUN_OUT(newcommand->request_id__lunl), request_id)); | |
75913d9b | 1374 | newcommand->sg_list[0].address = TW_CPU_TO_SGL(dma_handle + sizeof(TW_Ioctl_Buf_Apache) - 1); |
1375 | newcommand->sg_list[0].length = cpu_to_le32(length); | |
1da177e4 | 1376 | newcommand->sgl_entries__lunh = |
75913d9b | 1377 | cpu_to_le16(TW_REQ_LUN_IN(TW_LUN_OUT(newcommand->sgl_entries__lunh), 1)); |
1da177e4 LT |
1378 | } else { |
1379 | oldcommand = &full_command_packet->command.oldcommand; | |
1380 | oldcommand->request_id = request_id; | |
1381 | ||
1382 | if (TW_SGL_OUT(oldcommand->opcode__sgloffset)) { | |
1383 | /* Load the sg list */ | |
0e78d158 | 1384 | if (tw_dev->tw_pci_dev->device == PCI_DEVICE_ID_3WARE_9690SA) |
1385 | sgl = (TW_SG_Entry *)((u32 *)oldcommand+oldcommand->size - (sizeof(TW_SG_Entry)/4) + pae); | |
1386 | else | |
1387 | sgl = (TW_SG_Entry *)((u32 *)oldcommand+TW_SGL_OUT(oldcommand->opcode__sgloffset)); | |
75913d9b | 1388 | sgl->address = TW_CPU_TO_SGL(dma_handle + sizeof(TW_Ioctl_Buf_Apache) - 1); |
1389 | sgl->length = cpu_to_le32(length); | |
1da177e4 | 1390 | |
0e78d158 | 1391 | oldcommand->size += pae; |
1da177e4 LT |
1392 | } |
1393 | } | |
1394 | } /* End twa_load_sgl() */ | |
1395 | ||
1396 | /* This function will perform a pci-dma mapping for a scatter gather list */ | |
1397 | static int twa_map_scsi_sg_data(TW_Device_Extension *tw_dev, int request_id) | |
1398 | { | |
1399 | int use_sg; | |
1400 | struct scsi_cmnd *cmd = tw_dev->srb[request_id]; | |
1da177e4 | 1401 | |
0debe01d FT |
1402 | use_sg = scsi_dma_map(cmd); |
1403 | if (!use_sg) | |
1404 | return 0; | |
1405 | else if (use_sg < 0) { | |
1da177e4 | 1406 | TW_PRINTK(tw_dev->host, TW_DRIVER, 0x1c, "Failed to map scatter gather list"); |
0debe01d | 1407 | return 0; |
1da177e4 LT |
1408 | } |
1409 | ||
1410 | cmd->SCp.phase = TW_PHASE_SGLIST; | |
1411 | cmd->SCp.have_data_in = use_sg; | |
1da177e4 | 1412 | |
0debe01d FT |
1413 | return use_sg; |
1414 | } /* End twa_map_scsi_sg_data() */ | |
1da177e4 LT |
1415 | |
1416 | /* This function will poll for a response interrupt of a request */ | |
1417 | static int twa_poll_response(TW_Device_Extension *tw_dev, int request_id, int seconds) | |
1418 | { | |
1419 | int retval = 1, found = 0, response_request_id; | |
1420 | TW_Response_Queue response_queue; | |
1421 | TW_Command_Full *full_command_packet = tw_dev->command_packet_virt[request_id]; | |
1422 | ||
1423 | if (twa_poll_status_gone(tw_dev, TW_STATUS_RESPONSE_QUEUE_EMPTY, seconds) == 0) { | |
1424 | response_queue.value = readl(TW_RESPONSE_QUEUE_REG_ADDR(tw_dev)); | |
1425 | response_request_id = TW_RESID_OUT(response_queue.response_id); | |
1426 | if (request_id != response_request_id) { | |
1427 | TW_PRINTK(tw_dev->host, TW_DRIVER, 0x1e, "Found unexpected request id while polling for response"); | |
1428 | goto out; | |
1429 | } | |
1430 | if (TW_OP_OUT(full_command_packet->command.newcommand.opcode__reserved) == TW_OP_EXECUTE_SCSI) { | |
1431 | if (full_command_packet->command.newcommand.status != 0) { | |
1432 | /* bad response */ | |
1433 | twa_fill_sense(tw_dev, request_id, 0, 0); | |
1434 | goto out; | |
1435 | } | |
1436 | found = 1; | |
1437 | } else { | |
1438 | if (full_command_packet->command.oldcommand.status != 0) { | |
1439 | /* bad response */ | |
1440 | twa_fill_sense(tw_dev, request_id, 0, 0); | |
1441 | goto out; | |
1442 | } | |
1443 | found = 1; | |
1444 | } | |
1445 | } | |
1446 | ||
1447 | if (found) | |
1448 | retval = 0; | |
1449 | out: | |
1450 | return retval; | |
1451 | } /* End twa_poll_response() */ | |
1452 | ||
1453 | /* This function will poll the status register for a flag */ | |
1454 | static int twa_poll_status(TW_Device_Extension *tw_dev, u32 flag, int seconds) | |
1455 | { | |
1456 | u32 status_reg_value; | |
1457 | unsigned long before; | |
1458 | int retval = 1; | |
1459 | ||
1460 | status_reg_value = readl(TW_STATUS_REG_ADDR(tw_dev)); | |
1461 | before = jiffies; | |
1462 | ||
1463 | if (twa_check_bits(status_reg_value)) | |
1464 | twa_decode_bits(tw_dev, status_reg_value); | |
1465 | ||
1466 | while ((status_reg_value & flag) != flag) { | |
1467 | status_reg_value = readl(TW_STATUS_REG_ADDR(tw_dev)); | |
1468 | ||
1469 | if (twa_check_bits(status_reg_value)) | |
1470 | twa_decode_bits(tw_dev, status_reg_value); | |
1471 | ||
1472 | if (time_after(jiffies, before + HZ * seconds)) | |
1473 | goto out; | |
1474 | ||
1475 | msleep(50); | |
1476 | } | |
1477 | retval = 0; | |
1478 | out: | |
1479 | return retval; | |
1480 | } /* End twa_poll_status() */ | |
1481 | ||
1482 | /* This function will poll the status register for disappearance of a flag */ | |
1483 | static int twa_poll_status_gone(TW_Device_Extension *tw_dev, u32 flag, int seconds) | |
1484 | { | |
1485 | u32 status_reg_value; | |
1486 | unsigned long before; | |
1487 | int retval = 1; | |
1488 | ||
1489 | status_reg_value = readl(TW_STATUS_REG_ADDR(tw_dev)); | |
1490 | before = jiffies; | |
1491 | ||
1492 | if (twa_check_bits(status_reg_value)) | |
1493 | twa_decode_bits(tw_dev, status_reg_value); | |
1494 | ||
1495 | while ((status_reg_value & flag) != 0) { | |
1496 | status_reg_value = readl(TW_STATUS_REG_ADDR(tw_dev)); | |
1497 | if (twa_check_bits(status_reg_value)) | |
1498 | twa_decode_bits(tw_dev, status_reg_value); | |
1499 | ||
1500 | if (time_after(jiffies, before + HZ * seconds)) | |
1501 | goto out; | |
1502 | ||
1503 | msleep(50); | |
1504 | } | |
1505 | retval = 0; | |
1506 | out: | |
1507 | return retval; | |
1508 | } /* End twa_poll_status_gone() */ | |
1509 | ||
1510 | /* This function will attempt to post a command packet to the board */ | |
1511 | static int twa_post_command_packet(TW_Device_Extension *tw_dev, int request_id, char internal) | |
1512 | { | |
1513 | u32 status_reg_value; | |
1514 | dma_addr_t command_que_value; | |
1515 | int retval = 1; | |
1516 | ||
1517 | command_que_value = tw_dev->command_packet_phys[request_id]; | |
4039c30e | 1518 | |
1519 | /* For 9650SE write low 4 bytes first */ | |
0e78d158 | 1520 | if ((tw_dev->tw_pci_dev->device == PCI_DEVICE_ID_3WARE_9650SE) || |
1521 | (tw_dev->tw_pci_dev->device == PCI_DEVICE_ID_3WARE_9690SA)) { | |
4039c30e | 1522 | command_que_value += TW_COMMAND_OFFSET; |
1523 | writel((u32)command_que_value, TW_COMMAND_QUEUE_REG_ADDR_LARGE(tw_dev)); | |
1524 | } | |
1525 | ||
1da177e4 LT |
1526 | status_reg_value = readl(TW_STATUS_REG_ADDR(tw_dev)); |
1527 | ||
1528 | if (twa_check_bits(status_reg_value)) | |
1529 | twa_decode_bits(tw_dev, status_reg_value); | |
1530 | ||
1531 | if (((tw_dev->pending_request_count > 0) && (tw_dev->state[request_id] != TW_S_PENDING)) || (status_reg_value & TW_STATUS_COMMAND_QUEUE_FULL)) { | |
1532 | ||
1533 | /* Only pend internal driver commands */ | |
1534 | if (!internal) { | |
1535 | retval = SCSI_MLQUEUE_HOST_BUSY; | |
1536 | goto out; | |
1537 | } | |
1538 | ||
1539 | /* Couldn't post the command packet, so we do it later */ | |
1540 | if (tw_dev->state[request_id] != TW_S_PENDING) { | |
1541 | tw_dev->state[request_id] = TW_S_PENDING; | |
1542 | tw_dev->pending_request_count++; | |
1543 | if (tw_dev->pending_request_count > tw_dev->max_pending_request_count) { | |
1544 | tw_dev->max_pending_request_count = tw_dev->pending_request_count; | |
1545 | } | |
1546 | tw_dev->pending_queue[tw_dev->pending_tail] = request_id; | |
1547 | tw_dev->pending_tail = (tw_dev->pending_tail + 1) % TW_Q_LENGTH; | |
1548 | } | |
1549 | TW_UNMASK_COMMAND_INTERRUPT(tw_dev); | |
1550 | goto out; | |
1551 | } else { | |
0e78d158 | 1552 | if ((tw_dev->tw_pci_dev->device == PCI_DEVICE_ID_3WARE_9650SE) || |
1553 | (tw_dev->tw_pci_dev->device == PCI_DEVICE_ID_3WARE_9690SA)) { | |
4039c30e | 1554 | /* Now write upper 4 bytes */ |
1555 | writel((u32)((u64)command_que_value >> 32), TW_COMMAND_QUEUE_REG_ADDR_LARGE(tw_dev) + 0x4); | |
1da177e4 | 1556 | } else { |
4039c30e | 1557 | if (sizeof(dma_addr_t) > 4) { |
1558 | command_que_value += TW_COMMAND_OFFSET; | |
1559 | writel((u32)command_que_value, TW_COMMAND_QUEUE_REG_ADDR(tw_dev)); | |
1560 | writel((u32)((u64)command_que_value >> 32), TW_COMMAND_QUEUE_REG_ADDR(tw_dev) + 0x4); | |
1561 | } else { | |
1562 | writel(TW_COMMAND_OFFSET + command_que_value, TW_COMMAND_QUEUE_REG_ADDR(tw_dev)); | |
1563 | } | |
1da177e4 LT |
1564 | } |
1565 | tw_dev->state[request_id] = TW_S_POSTED; | |
1566 | tw_dev->posted_request_count++; | |
1567 | if (tw_dev->posted_request_count > tw_dev->max_posted_request_count) { | |
1568 | tw_dev->max_posted_request_count = tw_dev->posted_request_count; | |
1569 | } | |
1570 | } | |
1571 | retval = 0; | |
1572 | out: | |
1573 | return retval; | |
1574 | } /* End twa_post_command_packet() */ | |
1575 | ||
1576 | /* This function will reset a device extension */ | |
0e78d158 | 1577 | static int twa_reset_device_extension(TW_Device_Extension *tw_dev) |
1da177e4 LT |
1578 | { |
1579 | int i = 0; | |
1580 | int retval = 1; | |
1581 | unsigned long flags = 0; | |
1582 | ||
1583 | set_bit(TW_IN_RESET, &tw_dev->flags); | |
1584 | TW_DISABLE_INTERRUPTS(tw_dev); | |
1585 | TW_MASK_COMMAND_INTERRUPT(tw_dev); | |
1586 | spin_lock_irqsave(tw_dev->host->host_lock, flags); | |
1587 | ||
1588 | /* Abort all requests that are in progress */ | |
1589 | for (i = 0; i < TW_Q_LENGTH; i++) { | |
1590 | if ((tw_dev->state[i] != TW_S_FINISHED) && | |
1591 | (tw_dev->state[i] != TW_S_INITIAL) && | |
1592 | (tw_dev->state[i] != TW_S_COMPLETED)) { | |
1593 | if (tw_dev->srb[i]) { | |
1594 | tw_dev->srb[i]->result = (DID_RESET << 16); | |
1595 | tw_dev->srb[i]->scsi_done(tw_dev->srb[i]); | |
1596 | twa_unmap_scsi_data(tw_dev, i); | |
1597 | } | |
1598 | } | |
1599 | } | |
1600 | ||
1601 | /* Reset queues and counts */ | |
1602 | for (i = 0; i < TW_Q_LENGTH; i++) { | |
1603 | tw_dev->free_queue[i] = i; | |
1604 | tw_dev->state[i] = TW_S_INITIAL; | |
1605 | } | |
1606 | tw_dev->free_head = TW_Q_START; | |
1607 | tw_dev->free_tail = TW_Q_START; | |
1608 | tw_dev->posted_request_count = 0; | |
1609 | tw_dev->pending_request_count = 0; | |
1610 | tw_dev->pending_head = TW_Q_START; | |
1611 | tw_dev->pending_tail = TW_Q_START; | |
1612 | tw_dev->reset_print = 0; | |
1613 | ||
1614 | spin_unlock_irqrestore(tw_dev->host->host_lock, flags); | |
1615 | ||
1616 | if (twa_reset_sequence(tw_dev, 1)) | |
1617 | goto out; | |
1618 | ||
1619 | TW_ENABLE_AND_CLEAR_INTERRUPTS(tw_dev); | |
4039c30e | 1620 | clear_bit(TW_IN_RESET, &tw_dev->flags); |
1621 | tw_dev->chrdev_request_id = TW_IOCTL_CHRDEV_FREE; | |
1da177e4 | 1622 | |
1da177e4 LT |
1623 | retval = 0; |
1624 | out: | |
1625 | return retval; | |
1626 | } /* End twa_reset_device_extension() */ | |
1627 | ||
1628 | /* This function will reset a controller */ | |
1629 | static int twa_reset_sequence(TW_Device_Extension *tw_dev, int soft_reset) | |
1630 | { | |
1631 | int tries = 0, retval = 1, flashed = 0, do_soft_reset = soft_reset; | |
1632 | ||
1633 | while (tries < TW_MAX_RESET_TRIES) { | |
49bfd8db | 1634 | if (do_soft_reset) { |
1da177e4 | 1635 | TW_SOFT_RESET(tw_dev); |
49bfd8db | 1636 | /* Clear pchip/response queue on 9550SX */ |
1637 | if (twa_empty_response_queue_large(tw_dev)) { | |
1638 | TW_PRINTK(tw_dev->host, TW_DRIVER, 0x36, "Response queue (large) empty failed during reset sequence"); | |
1639 | do_soft_reset = 1; | |
1640 | tries++; | |
1641 | continue; | |
1642 | } | |
1643 | } | |
1da177e4 LT |
1644 | |
1645 | /* Make sure controller is in a good state */ | |
1646 | if (twa_poll_status(tw_dev, TW_STATUS_MICROCONTROLLER_READY | (do_soft_reset == 1 ? TW_STATUS_ATTENTION_INTERRUPT : 0), 60)) { | |
1647 | TW_PRINTK(tw_dev->host, TW_DRIVER, 0x1f, "Microcontroller not ready during reset sequence"); | |
1648 | do_soft_reset = 1; | |
1649 | tries++; | |
1650 | continue; | |
1651 | } | |
1652 | ||
1653 | /* Empty response queue */ | |
1654 | if (twa_empty_response_queue(tw_dev)) { | |
1655 | TW_PRINTK(tw_dev->host, TW_DRIVER, 0x20, "Response queue empty failed during reset sequence"); | |
1656 | do_soft_reset = 1; | |
1657 | tries++; | |
1658 | continue; | |
1659 | } | |
1660 | ||
1661 | flashed = 0; | |
1662 | ||
1663 | /* Check for compatibility/flash */ | |
1664 | if (twa_check_srl(tw_dev, &flashed)) { | |
1665 | TW_PRINTK(tw_dev->host, TW_DRIVER, 0x21, "Compatibility check failed during reset sequence"); | |
1666 | do_soft_reset = 1; | |
1667 | tries++; | |
1668 | continue; | |
1669 | } else { | |
1670 | if (flashed) { | |
1671 | tries++; | |
1672 | continue; | |
1673 | } | |
1674 | } | |
1675 | ||
1676 | /* Drain the AEN queue */ | |
1677 | if (twa_aen_drain_queue(tw_dev, soft_reset)) { | |
1678 | TW_PRINTK(tw_dev->host, TW_DRIVER, 0x22, "AEN drain failed during reset sequence"); | |
1679 | do_soft_reset = 1; | |
1680 | tries++; | |
1681 | continue; | |
1682 | } | |
1683 | ||
1684 | /* If we got here, controller is in a good state */ | |
1685 | retval = 0; | |
1686 | goto out; | |
1687 | } | |
1688 | out: | |
1689 | return retval; | |
1690 | } /* End twa_reset_sequence() */ | |
1691 | ||
1692 | /* This funciton returns unit geometry in cylinders/heads/sectors */ | |
1693 | static int twa_scsi_biosparam(struct scsi_device *sdev, struct block_device *bdev, sector_t capacity, int geom[]) | |
1694 | { | |
1695 | int heads, sectors, cylinders; | |
1696 | TW_Device_Extension *tw_dev; | |
1697 | ||
1698 | tw_dev = (TW_Device_Extension *)sdev->host->hostdata; | |
1699 | ||
1700 | if (capacity >= 0x200000) { | |
1701 | heads = 255; | |
1702 | sectors = 63; | |
1703 | cylinders = sector_div(capacity, heads * sectors); | |
1704 | } else { | |
1705 | heads = 64; | |
1706 | sectors = 32; | |
1707 | cylinders = sector_div(capacity, heads * sectors); | |
1708 | } | |
1709 | ||
1710 | geom[0] = heads; | |
1711 | geom[1] = sectors; | |
1712 | geom[2] = cylinders; | |
1713 | ||
1714 | return 0; | |
1715 | } /* End twa_scsi_biosparam() */ | |
1716 | ||
1717 | /* This is the new scsi eh reset function */ | |
1718 | static int twa_scsi_eh_reset(struct scsi_cmnd *SCpnt) | |
1719 | { | |
1720 | TW_Device_Extension *tw_dev = NULL; | |
1721 | int retval = FAILED; | |
1722 | ||
1723 | tw_dev = (TW_Device_Extension *)SCpnt->device->host->hostdata; | |
1724 | ||
1da177e4 LT |
1725 | tw_dev->num_resets++; |
1726 | ||
017560fc JG |
1727 | sdev_printk(KERN_WARNING, SCpnt->device, |
1728 | "WARNING: (0x%02X:0x%04X): Command (0x%x) timed out, resetting card.\n", | |
1729 | TW_DRIVER, 0x2c, SCpnt->cmnd[0]); | |
1da177e4 | 1730 | |
4039c30e | 1731 | /* Make sure we are not issuing an ioctl or resetting from ioctl */ |
1732 | mutex_lock(&tw_dev->ioctl_lock); | |
1733 | ||
1da177e4 | 1734 | /* Now reset the card and some of the device extension data */ |
0e78d158 | 1735 | if (twa_reset_device_extension(tw_dev)) { |
1da177e4 LT |
1736 | TW_PRINTK(tw_dev->host, TW_DRIVER, 0x2b, "Controller reset failed during scsi host reset"); |
1737 | goto out; | |
1738 | } | |
1739 | ||
1740 | retval = SUCCESS; | |
1741 | out: | |
4039c30e | 1742 | mutex_unlock(&tw_dev->ioctl_lock); |
1da177e4 LT |
1743 | return retval; |
1744 | } /* End twa_scsi_eh_reset() */ | |
1745 | ||
1746 | /* This is the main scsi queue function to handle scsi opcodes */ | |
1747 | static int twa_scsi_queue(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *)) | |
1748 | { | |
1749 | int request_id, retval; | |
1750 | TW_Device_Extension *tw_dev = (TW_Device_Extension *)SCpnt->device->host->hostdata; | |
1751 | ||
4039c30e | 1752 | /* If we are resetting due to timed out ioctl, report as busy */ |
1753 | if (test_bit(TW_IN_RESET, &tw_dev->flags)) { | |
1754 | retval = SCSI_MLQUEUE_HOST_BUSY; | |
1755 | goto out; | |
1756 | } | |
1757 | ||
1da177e4 | 1758 | /* Check if this FW supports luns */ |
4039c30e | 1759 | if ((SCpnt->device->lun != 0) && (tw_dev->tw_compat_info.working_srl < TW_FW_SRL_LUNS_SUPPORTED)) { |
1da177e4 LT |
1760 | SCpnt->result = (DID_BAD_TARGET << 16); |
1761 | done(SCpnt); | |
1762 | retval = 0; | |
1763 | goto out; | |
1764 | } | |
1765 | ||
1766 | /* Save done function into scsi_cmnd struct */ | |
1767 | SCpnt->scsi_done = done; | |
1768 | ||
1769 | /* Get a free request id */ | |
1770 | twa_get_request_id(tw_dev, &request_id); | |
1771 | ||
1772 | /* Save the scsi command for use by the ISR */ | |
1773 | tw_dev->srb[request_id] = SCpnt; | |
1774 | ||
1775 | /* Initialize phase to zero */ | |
1776 | SCpnt->SCp.phase = TW_PHASE_INITIAL; | |
1777 | ||
1778 | retval = twa_scsiop_execute_scsi(tw_dev, request_id, NULL, 0, NULL); | |
1779 | switch (retval) { | |
1780 | case SCSI_MLQUEUE_HOST_BUSY: | |
1781 | twa_free_request_id(tw_dev, request_id); | |
1782 | break; | |
1783 | case 1: | |
1784 | tw_dev->state[request_id] = TW_S_COMPLETED; | |
1785 | twa_free_request_id(tw_dev, request_id); | |
1786 | SCpnt->result = (DID_ERROR << 16); | |
1787 | done(SCpnt); | |
1788 | retval = 0; | |
1789 | } | |
1790 | out: | |
1791 | return retval; | |
1792 | } /* End twa_scsi_queue() */ | |
1793 | ||
1794 | /* This function hands scsi cdb's to the firmware */ | |
1795 | static int twa_scsiop_execute_scsi(TW_Device_Extension *tw_dev, int request_id, char *cdb, int use_sg, TW_SG_Entry *sglistarg) | |
1796 | { | |
1797 | TW_Command_Full *full_command_packet; | |
1798 | TW_Command_Apache *command_packet; | |
1799 | u32 num_sectors = 0x0; | |
1800 | int i, sg_count; | |
1801 | struct scsi_cmnd *srb = NULL; | |
0debe01d | 1802 | struct scatterlist *sglist = NULL, *sg; |
1da177e4 LT |
1803 | int retval = 1; |
1804 | ||
1805 | if (tw_dev->srb[request_id]) { | |
1da177e4 | 1806 | srb = tw_dev->srb[request_id]; |
0debe01d FT |
1807 | if (scsi_sglist(srb)) |
1808 | sglist = scsi_sglist(srb); | |
1da177e4 LT |
1809 | } |
1810 | ||
1811 | /* Initialize command packet */ | |
1812 | full_command_packet = tw_dev->command_packet_virt[request_id]; | |
1813 | full_command_packet->header.header_desc.size_header = 128; | |
1814 | full_command_packet->header.status_block.error = 0; | |
1815 | full_command_packet->header.status_block.severity__reserved = 0; | |
1816 | ||
1817 | command_packet = &full_command_packet->command.newcommand; | |
1818 | command_packet->status = 0; | |
1819 | command_packet->opcode__reserved = TW_OPRES_IN(0, TW_OP_EXECUTE_SCSI); | |
1820 | ||
1821 | /* We forced 16 byte cdb use earlier */ | |
1822 | if (!cdb) | |
1823 | memcpy(command_packet->cdb, srb->cmnd, TW_MAX_CDB_LEN); | |
1824 | else | |
1825 | memcpy(command_packet->cdb, cdb, TW_MAX_CDB_LEN); | |
1826 | ||
1827 | if (srb) { | |
1828 | command_packet->unit = srb->device->id; | |
1829 | command_packet->request_id__lunl = | |
75913d9b | 1830 | cpu_to_le16(TW_REQ_LUN_IN(srb->device->lun, request_id)); |
1da177e4 LT |
1831 | } else { |
1832 | command_packet->request_id__lunl = | |
75913d9b | 1833 | cpu_to_le16(TW_REQ_LUN_IN(0, request_id)); |
1da177e4 LT |
1834 | command_packet->unit = 0; |
1835 | } | |
1836 | ||
1837 | command_packet->sgl_offset = 16; | |
1838 | ||
1839 | if (!sglistarg) { | |
1840 | /* Map sglist from scsi layer to cmd packet */ | |
1da177e4 | 1841 | |
0debe01d FT |
1842 | if (scsi_sg_count(srb)) { |
1843 | if ((scsi_sg_count(srb) == 1) && | |
1844 | (scsi_bufflen(srb) < TW_MIN_SGL_LENGTH)) { | |
035f5e06 FT |
1845 | if (srb->sc_data_direction == DMA_TO_DEVICE || |
1846 | srb->sc_data_direction == DMA_BIDIRECTIONAL) | |
1847 | scsi_sg_copy_to_buffer(srb, | |
1848 | tw_dev->generic_buffer_virt[request_id], | |
1849 | TW_SECTOR_SIZE); | |
75913d9b | 1850 | command_packet->sg_list[0].address = TW_CPU_TO_SGL(tw_dev->generic_buffer_phys[request_id]); |
1851 | command_packet->sg_list[0].length = cpu_to_le32(TW_MIN_SGL_LENGTH); | |
1da177e4 LT |
1852 | } else { |
1853 | sg_count = twa_map_scsi_sg_data(tw_dev, request_id); | |
1854 | if (sg_count == 0) | |
1855 | goto out; | |
1856 | ||
0debe01d FT |
1857 | scsi_for_each_sg(srb, sg, sg_count, i) { |
1858 | command_packet->sg_list[i].address = TW_CPU_TO_SGL(sg_dma_address(sg)); | |
1859 | command_packet->sg_list[i].length = cpu_to_le32(sg_dma_len(sg)); | |
75913d9b | 1860 | if (command_packet->sg_list[i].address & TW_CPU_TO_SGL(TW_ALIGNMENT_9000_SGL)) { |
1da177e4 LT |
1861 | TW_PRINTK(tw_dev->host, TW_DRIVER, 0x2e, "Found unaligned sgl address during execute scsi"); |
1862 | goto out; | |
1863 | } | |
1864 | } | |
1865 | } | |
0debe01d | 1866 | command_packet->sgl_entries__lunh = cpu_to_le16(TW_REQ_LUN_IN((srb->device->lun >> 4), scsi_sg_count(tw_dev->srb[request_id]))); |
1da177e4 LT |
1867 | } |
1868 | } else { | |
1869 | /* Internal cdb post */ | |
1870 | for (i = 0; i < use_sg; i++) { | |
75913d9b | 1871 | command_packet->sg_list[i].address = TW_CPU_TO_SGL(sglistarg[i].address); |
1872 | command_packet->sg_list[i].length = cpu_to_le32(sglistarg[i].length); | |
1873 | if (command_packet->sg_list[i].address & TW_CPU_TO_SGL(TW_ALIGNMENT_9000_SGL)) { | |
1da177e4 LT |
1874 | TW_PRINTK(tw_dev->host, TW_DRIVER, 0x2f, "Found unaligned sgl address during internal post"); |
1875 | goto out; | |
1876 | } | |
1877 | } | |
75913d9b | 1878 | command_packet->sgl_entries__lunh = cpu_to_le16(TW_REQ_LUN_IN(0, use_sg)); |
1da177e4 LT |
1879 | } |
1880 | ||
1881 | if (srb) { | |
1882 | if (srb->cmnd[0] == READ_6 || srb->cmnd[0] == WRITE_6) | |
1883 | num_sectors = (u32)srb->cmnd[4]; | |
1884 | ||
1885 | if (srb->cmnd[0] == READ_10 || srb->cmnd[0] == WRITE_10) | |
1886 | num_sectors = (u32)srb->cmnd[8] | ((u32)srb->cmnd[7] << 8); | |
1887 | } | |
1888 | ||
1889 | /* Update sector statistic */ | |
1890 | tw_dev->sector_count = num_sectors; | |
1891 | if (tw_dev->sector_count > tw_dev->max_sector_count) | |
1892 | tw_dev->max_sector_count = tw_dev->sector_count; | |
1893 | ||
1894 | /* Update SG statistics */ | |
1895 | if (srb) { | |
0debe01d | 1896 | tw_dev->sgl_entries = scsi_sg_count(tw_dev->srb[request_id]); |
1da177e4 LT |
1897 | if (tw_dev->sgl_entries > tw_dev->max_sgl_entries) |
1898 | tw_dev->max_sgl_entries = tw_dev->sgl_entries; | |
1899 | } | |
1900 | ||
1901 | /* Now post the command to the board */ | |
1902 | if (srb) { | |
1903 | retval = twa_post_command_packet(tw_dev, request_id, 0); | |
1904 | } else { | |
1905 | twa_post_command_packet(tw_dev, request_id, 1); | |
1906 | retval = 0; | |
1907 | } | |
1908 | out: | |
1909 | return retval; | |
1910 | } /* End twa_scsiop_execute_scsi() */ | |
1911 | ||
1912 | /* This function completes an execute scsi operation */ | |
1913 | static void twa_scsiop_execute_scsi_complete(TW_Device_Extension *tw_dev, int request_id) | |
1914 | { | |
0debe01d | 1915 | struct scsi_cmnd *cmd = tw_dev->srb[request_id]; |
0debe01d FT |
1916 | |
1917 | if (scsi_bufflen(cmd) < TW_MIN_SGL_LENGTH && | |
1918 | (cmd->sc_data_direction == DMA_FROM_DEVICE || | |
1919 | cmd->sc_data_direction == DMA_BIDIRECTIONAL)) { | |
b1192d5e | 1920 | if (scsi_sg_count(cmd) == 1) { |
035f5e06 FT |
1921 | unsigned long flags; |
1922 | void *buf = tw_dev->generic_buffer_virt[request_id]; | |
1923 | ||
1e08dcb3 | 1924 | local_irq_save(flags); |
035f5e06 | 1925 | scsi_sg_copy_from_buffer(cmd, buf, TW_SECTOR_SIZE); |
1e08dcb3 | 1926 | local_irq_restore(flags); |
d327d082 | 1927 | } |
1da177e4 LT |
1928 | } |
1929 | } /* End twa_scsiop_execute_scsi_complete() */ | |
1930 | ||
1931 | /* This function tells the controller to shut down */ | |
1932 | static void __twa_shutdown(TW_Device_Extension *tw_dev) | |
1933 | { | |
1934 | /* Disable interrupts */ | |
1935 | TW_DISABLE_INTERRUPTS(tw_dev); | |
1936 | ||
4039c30e | 1937 | /* Free up the IRQ */ |
1938 | free_irq(tw_dev->tw_pci_dev->irq, tw_dev); | |
1939 | ||
1da177e4 LT |
1940 | printk(KERN_WARNING "3w-9xxx: Shutting down host %d.\n", tw_dev->host->host_no); |
1941 | ||
1942 | /* Tell the card we are shutting down */ | |
1943 | if (twa_initconnection(tw_dev, 1, 0, 0, 0, 0, 0, NULL, NULL, NULL, NULL, NULL)) { | |
1944 | TW_PRINTK(tw_dev->host, TW_DRIVER, 0x31, "Connection shutdown failed"); | |
1945 | } else { | |
1946 | printk(KERN_WARNING "3w-9xxx: Shutdown complete.\n"); | |
1947 | } | |
1948 | ||
1949 | /* Clear all interrupts just before exit */ | |
1950 | TW_CLEAR_ALL_INTERRUPTS(tw_dev); | |
1951 | } /* End __twa_shutdown() */ | |
1952 | ||
1953 | /* Wrapper for __twa_shutdown */ | |
d18c3db5 | 1954 | static void twa_shutdown(struct pci_dev *pdev) |
1da177e4 | 1955 | { |
d18c3db5 | 1956 | struct Scsi_Host *host = pci_get_drvdata(pdev); |
1da177e4 LT |
1957 | TW_Device_Extension *tw_dev = (TW_Device_Extension *)host->hostdata; |
1958 | ||
1959 | __twa_shutdown(tw_dev); | |
1960 | } /* End twa_shutdown() */ | |
1961 | ||
1962 | /* This function will look up a string */ | |
1963 | static char *twa_string_lookup(twa_message_type *table, unsigned int code) | |
1964 | { | |
1965 | int index; | |
1966 | ||
1967 | for (index = 0; ((code != table[index].code) && | |
1968 | (table[index].text != (char *)0)); index++); | |
1969 | return(table[index].text); | |
1970 | } /* End twa_string_lookup() */ | |
1971 | ||
1972 | /* This function will perform a pci-dma unmap */ | |
1973 | static void twa_unmap_scsi_data(TW_Device_Extension *tw_dev, int request_id) | |
1974 | { | |
1975 | struct scsi_cmnd *cmd = tw_dev->srb[request_id]; | |
1da177e4 | 1976 | |
0debe01d | 1977 | scsi_dma_unmap(cmd); |
1da177e4 LT |
1978 | } /* End twa_unmap_scsi_data() */ |
1979 | ||
1980 | /* scsi_host_template initializer */ | |
1981 | static struct scsi_host_template driver_template = { | |
1982 | .module = THIS_MODULE, | |
1983 | .name = "3ware 9000 Storage Controller", | |
1984 | .queuecommand = twa_scsi_queue, | |
1985 | .eh_host_reset_handler = twa_scsi_eh_reset, | |
1986 | .bios_param = twa_scsi_biosparam, | |
1987 | .change_queue_depth = twa_change_queue_depth, | |
1988 | .can_queue = TW_Q_LENGTH-2, | |
1989 | .this_id = -1, | |
1990 | .sg_tablesize = TW_APACHE_MAX_SGL_LENGTH, | |
1991 | .max_sectors = TW_MAX_SECTORS, | |
1992 | .cmd_per_lun = TW_MAX_CMDS_PER_LUN, | |
1993 | .use_clustering = ENABLE_CLUSTERING, | |
1994 | .shost_attrs = twa_host_attrs, | |
1995 | .emulated = 1 | |
1996 | }; | |
1997 | ||
1998 | /* This function will probe and initialize a card */ | |
1999 | static int __devinit twa_probe(struct pci_dev *pdev, const struct pci_device_id *dev_id) | |
2000 | { | |
2001 | struct Scsi_Host *host = NULL; | |
2002 | TW_Device_Extension *tw_dev; | |
2003 | u32 mem_addr; | |
2004 | int retval = -ENODEV; | |
2005 | ||
2006 | retval = pci_enable_device(pdev); | |
2007 | if (retval) { | |
2008 | TW_PRINTK(host, TW_DRIVER, 0x34, "Failed to enable pci device"); | |
2009 | goto out_disable_device; | |
2010 | } | |
2011 | ||
2012 | pci_set_master(pdev); | |
1e6c38ce | 2013 | pci_try_set_mwi(pdev); |
1da177e4 | 2014 | |
0e78d158 | 2015 | if (pci_set_dma_mask(pdev, DMA_64BIT_MASK) |
2016 | || pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK)) | |
2017 | if (pci_set_dma_mask(pdev, DMA_32BIT_MASK) | |
2018 | || pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK)) { | |
2019 | TW_PRINTK(host, TW_DRIVER, 0x23, "Failed to set dma mask"); | |
2020 | retval = -ENODEV; | |
2021 | goto out_disable_device; | |
2022 | } | |
1da177e4 LT |
2023 | |
2024 | host = scsi_host_alloc(&driver_template, sizeof(TW_Device_Extension)); | |
2025 | if (!host) { | |
2026 | TW_PRINTK(host, TW_DRIVER, 0x24, "Failed to allocate memory for device extension"); | |
2027 | retval = -ENOMEM; | |
2028 | goto out_disable_device; | |
2029 | } | |
2030 | tw_dev = (TW_Device_Extension *)host->hostdata; | |
2031 | ||
1da177e4 LT |
2032 | /* Save values to device extension */ |
2033 | tw_dev->host = host; | |
2034 | tw_dev->tw_pci_dev = pdev; | |
2035 | ||
2036 | if (twa_initialize_device_extension(tw_dev)) { | |
2037 | TW_PRINTK(tw_dev->host, TW_DRIVER, 0x25, "Failed to initialize device extension"); | |
2038 | goto out_free_device_extension; | |
2039 | } | |
2040 | ||
2041 | /* Request IO regions */ | |
2042 | retval = pci_request_regions(pdev, "3w-9xxx"); | |
2043 | if (retval) { | |
2044 | TW_PRINTK(tw_dev->host, TW_DRIVER, 0x26, "Failed to get mem region"); | |
2045 | goto out_free_device_extension; | |
2046 | } | |
2047 | ||
49bfd8db | 2048 | if (pdev->device == PCI_DEVICE_ID_3WARE_9000) |
2049 | mem_addr = pci_resource_start(pdev, 1); | |
2050 | else | |
2051 | mem_addr = pci_resource_start(pdev, 2); | |
1da177e4 LT |
2052 | |
2053 | /* Save base address */ | |
2054 | tw_dev->base_addr = ioremap(mem_addr, PAGE_SIZE); | |
2055 | if (!tw_dev->base_addr) { | |
2056 | TW_PRINTK(tw_dev->host, TW_DRIVER, 0x35, "Failed to ioremap"); | |
2057 | goto out_release_mem_region; | |
2058 | } | |
2059 | ||
2060 | /* Disable interrupts on the card */ | |
2061 | TW_DISABLE_INTERRUPTS(tw_dev); | |
2062 | ||
2063 | /* Initialize the card */ | |
2064 | if (twa_reset_sequence(tw_dev, 0)) | |
4039c30e | 2065 | goto out_iounmap; |
1da177e4 LT |
2066 | |
2067 | /* Set host specific parameters */ | |
0e78d158 | 2068 | if ((pdev->device == PCI_DEVICE_ID_3WARE_9650SE) || |
2069 | (pdev->device == PCI_DEVICE_ID_3WARE_9690SA)) | |
4039c30e | 2070 | host->max_id = TW_MAX_UNITS_9650SE; |
2071 | else | |
2072 | host->max_id = TW_MAX_UNITS; | |
2073 | ||
1da177e4 LT |
2074 | host->max_cmd_len = TW_MAX_CDB_LEN; |
2075 | ||
2076 | /* Channels aren't supported by adapter */ | |
4039c30e | 2077 | host->max_lun = TW_MAX_LUNS(tw_dev->tw_compat_info.working_srl); |
1da177e4 LT |
2078 | host->max_channel = 0; |
2079 | ||
2080 | /* Register the card with the kernel SCSI layer */ | |
2081 | retval = scsi_add_host(host, &pdev->dev); | |
2082 | if (retval) { | |
2083 | TW_PRINTK(tw_dev->host, TW_DRIVER, 0x27, "scsi add host failed"); | |
4039c30e | 2084 | goto out_iounmap; |
1da177e4 LT |
2085 | } |
2086 | ||
2087 | pci_set_drvdata(pdev, host); | |
2088 | ||
2089 | printk(KERN_WARNING "3w-9xxx: scsi%d: Found a 3ware 9000 Storage Controller at 0x%x, IRQ: %d.\n", | |
2090 | host->host_no, mem_addr, pdev->irq); | |
2091 | printk(KERN_WARNING "3w-9xxx: scsi%d: Firmware %s, BIOS %s, Ports: %d.\n", | |
2092 | host->host_no, | |
2093 | (char *)twa_get_param(tw_dev, 0, TW_VERSION_TABLE, | |
2094 | TW_PARAM_FWVER, TW_PARAM_FWVER_LENGTH), | |
2095 | (char *)twa_get_param(tw_dev, 1, TW_VERSION_TABLE, | |
2096 | TW_PARAM_BIOSVER, TW_PARAM_BIOSVER_LENGTH), | |
75913d9b | 2097 | le32_to_cpu(*(int *)twa_get_param(tw_dev, 2, TW_INFORMATION_TABLE, |
2098 | TW_PARAM_PORTCOUNT, TW_PARAM_PORTCOUNT_LENGTH))); | |
1da177e4 LT |
2099 | |
2100 | /* Now setup the interrupt handler */ | |
1d6f359a | 2101 | retval = request_irq(pdev->irq, twa_interrupt, IRQF_SHARED, "3w-9xxx", tw_dev); |
1da177e4 LT |
2102 | if (retval) { |
2103 | TW_PRINTK(tw_dev->host, TW_DRIVER, 0x30, "Error requesting IRQ"); | |
2104 | goto out_remove_host; | |
2105 | } | |
2106 | ||
2107 | twa_device_extension_list[twa_device_extension_count] = tw_dev; | |
2108 | twa_device_extension_count++; | |
2109 | ||
2110 | /* Re-enable interrupts on the card */ | |
2111 | TW_ENABLE_AND_CLEAR_INTERRUPTS(tw_dev); | |
2112 | ||
2113 | /* Finally, scan the host */ | |
2114 | scsi_scan_host(host); | |
2115 | ||
2116 | if (twa_major == -1) { | |
2117 | if ((twa_major = register_chrdev (0, "twa", &twa_fops)) < 0) | |
2118 | TW_PRINTK(host, TW_DRIVER, 0x29, "Failed to register character device"); | |
2119 | } | |
2120 | return 0; | |
2121 | ||
2122 | out_remove_host: | |
2123 | scsi_remove_host(host); | |
4039c30e | 2124 | out_iounmap: |
2125 | iounmap(tw_dev->base_addr); | |
1da177e4 LT |
2126 | out_release_mem_region: |
2127 | pci_release_regions(pdev); | |
2128 | out_free_device_extension: | |
2129 | twa_free_device_extension(tw_dev); | |
2130 | scsi_host_put(host); | |
2131 | out_disable_device: | |
2132 | pci_disable_device(pdev); | |
2133 | ||
2134 | return retval; | |
2135 | } /* End twa_probe() */ | |
2136 | ||
2137 | /* This function is called to remove a device */ | |
2138 | static void twa_remove(struct pci_dev *pdev) | |
2139 | { | |
2140 | struct Scsi_Host *host = pci_get_drvdata(pdev); | |
2141 | TW_Device_Extension *tw_dev = (TW_Device_Extension *)host->hostdata; | |
2142 | ||
2143 | scsi_remove_host(tw_dev->host); | |
2144 | ||
2145 | /* Unregister character device */ | |
2146 | if (twa_major >= 0) { | |
2147 | unregister_chrdev(twa_major, "twa"); | |
2148 | twa_major = -1; | |
2149 | } | |
2150 | ||
1da177e4 LT |
2151 | /* Shutdown the card */ |
2152 | __twa_shutdown(tw_dev); | |
2153 | ||
4039c30e | 2154 | /* Free IO remapping */ |
2155 | iounmap(tw_dev->base_addr); | |
2156 | ||
1da177e4 LT |
2157 | /* Free up the mem region */ |
2158 | pci_release_regions(pdev); | |
2159 | ||
2160 | /* Free up device extension resources */ | |
2161 | twa_free_device_extension(tw_dev); | |
2162 | ||
2163 | scsi_host_put(tw_dev->host); | |
2164 | pci_disable_device(pdev); | |
2165 | twa_device_extension_count--; | |
2166 | } /* End twa_remove() */ | |
2167 | ||
2168 | /* PCI Devices supported by this driver */ | |
2169 | static struct pci_device_id twa_pci_tbl[] __devinitdata = { | |
2170 | { PCI_VENDOR_ID_3WARE, PCI_DEVICE_ID_3WARE_9000, | |
2171 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, | |
49bfd8db | 2172 | { PCI_VENDOR_ID_3WARE, PCI_DEVICE_ID_3WARE_9550SX, |
2173 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, | |
4039c30e | 2174 | { PCI_VENDOR_ID_3WARE, PCI_DEVICE_ID_3WARE_9650SE, |
2175 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, | |
0e78d158 | 2176 | { PCI_VENDOR_ID_3WARE, PCI_DEVICE_ID_3WARE_9690SA, |
2177 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, | |
1da177e4 LT |
2178 | { } |
2179 | }; | |
2180 | MODULE_DEVICE_TABLE(pci, twa_pci_tbl); | |
2181 | ||
2182 | /* pci_driver initializer */ | |
2183 | static struct pci_driver twa_driver = { | |
2184 | .name = "3w-9xxx", | |
2185 | .id_table = twa_pci_tbl, | |
2186 | .probe = twa_probe, | |
2187 | .remove = twa_remove, | |
d18c3db5 | 2188 | .shutdown = twa_shutdown |
1da177e4 LT |
2189 | }; |
2190 | ||
2191 | /* This function is called on driver initialization */ | |
2192 | static int __init twa_init(void) | |
2193 | { | |
2194 | printk(KERN_WARNING "3ware 9000 Storage Controller device driver for Linux v%s.\n", TW_DRIVER_VERSION); | |
2195 | ||
dcbccbde | 2196 | return pci_register_driver(&twa_driver); |
1da177e4 LT |
2197 | } /* End twa_init() */ |
2198 | ||
2199 | /* This function is called on driver exit */ | |
2200 | static void __exit twa_exit(void) | |
2201 | { | |
2202 | pci_unregister_driver(&twa_driver); | |
2203 | } /* End twa_exit() */ | |
2204 | ||
2205 | module_init(twa_init); | |
2206 | module_exit(twa_exit); | |
2207 |