Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * |
| 3 | * Linux MegaRAID device driver |
| 4 | * |
Ju, Seokmann | 3492b32 | 2005-11-17 13:13:31 -0500 | [diff] [blame] | 5 | * Copyright (c) 2002 LSI Logic Corporation. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6 | * |
| 7 | * This program is free software; you can redistribute it and/or |
| 8 | * modify it under the terms of the GNU General Public License |
| 9 | * as published by the Free Software Foundation; either version |
| 10 | * 2 of the License, or (at your option) any later version. |
| 11 | * |
| 12 | * Copyright (c) 2002 Red Hat, Inc. All rights reserved. |
| 13 | * - fixes |
| 14 | * - speed-ups (list handling fixes, issued_list, optimizations.) |
| 15 | * - lots of cleanups. |
| 16 | * |
| 17 | * Copyright (c) 2003 Christoph Hellwig <hch@lst.de> |
| 18 | * - new-style, hotplug-aware pci probing and scsi registration |
| 19 | * |
Ju, Seokmann | 3492b32 | 2005-11-17 13:13:31 -0500 | [diff] [blame] | 20 | * Version : v2.00.4 Mon Nov 14 14:02:43 EST 2005 - Seokmann Ju |
| 21 | * <Seokmann.Ju@lsil.com> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 22 | * |
| 23 | * Description: Linux device driver for LSI Logic MegaRAID controller |
| 24 | * |
| 25 | * Supported controllers: MegaRAID 418, 428, 438, 466, 762, 467, 471, 490, 493 |
| 26 | * 518, 520, 531, 532 |
| 27 | * |
| 28 | * This driver is supported by LSI Logic, with assistance from Red Hat, Dell, |
| 29 | * and others. Please send updates to the mailing list |
| 30 | * linux-scsi@vger.kernel.org . |
| 31 | * |
| 32 | */ |
| 33 | |
| 34 | #include <linux/mm.h> |
| 35 | #include <linux/fs.h> |
| 36 | #include <linux/blkdev.h> |
| 37 | #include <asm/uaccess.h> |
| 38 | #include <asm/io.h> |
Christoph Hellwig | 8d115f8 | 2005-06-19 13:42:05 +0200 | [diff] [blame] | 39 | #include <linux/completion.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 40 | #include <linux/delay.h> |
| 41 | #include <linux/proc_fs.h> |
| 42 | #include <linux/reboot.h> |
| 43 | #include <linux/module.h> |
| 44 | #include <linux/list.h> |
| 45 | #include <linux/interrupt.h> |
| 46 | #include <linux/pci.h> |
| 47 | #include <linux/init.h> |
Matthias Gehre | 910638a | 2006-03-28 01:56:48 -0800 | [diff] [blame] | 48 | #include <linux/dma-mapping.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 49 | #include <scsi/scsicam.h> |
| 50 | |
| 51 | #include "scsi.h" |
| 52 | #include <scsi/scsi_host.h> |
| 53 | |
| 54 | #include "megaraid.h" |
| 55 | |
Ju, Seokmann | 3492b32 | 2005-11-17 13:13:31 -0500 | [diff] [blame] | 56 | #define MEGARAID_MODULE_VERSION "2.00.4" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 57 | |
Ju, Seokmann | 3492b32 | 2005-11-17 13:13:31 -0500 | [diff] [blame] | 58 | MODULE_AUTHOR ("sju@lsil.com"); |
| 59 | MODULE_DESCRIPTION ("LSI Logic MegaRAID legacy driver"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 60 | MODULE_LICENSE ("GPL"); |
| 61 | MODULE_VERSION(MEGARAID_MODULE_VERSION); |
| 62 | |
| 63 | static unsigned int max_cmd_per_lun = DEF_CMD_PER_LUN; |
| 64 | module_param(max_cmd_per_lun, uint, 0); |
| 65 | MODULE_PARM_DESC(max_cmd_per_lun, "Maximum number of commands which can be issued to a single LUN (default=DEF_CMD_PER_LUN=63)"); |
| 66 | |
| 67 | static unsigned short int max_sectors_per_io = MAX_SECTORS_PER_IO; |
| 68 | module_param(max_sectors_per_io, ushort, 0); |
| 69 | MODULE_PARM_DESC(max_sectors_per_io, "Maximum number of sectors per I/O request (default=MAX_SECTORS_PER_IO=128)"); |
| 70 | |
| 71 | |
| 72 | static unsigned short int max_mbox_busy_wait = MBOX_BUSY_WAIT; |
| 73 | module_param(max_mbox_busy_wait, ushort, 0); |
| 74 | MODULE_PARM_DESC(max_mbox_busy_wait, "Maximum wait for mailbox in microseconds if busy (default=MBOX_BUSY_WAIT=10)"); |
| 75 | |
| 76 | #define RDINDOOR(adapter) readl((adapter)->base + 0x20) |
| 77 | #define RDOUTDOOR(adapter) readl((adapter)->base + 0x2C) |
| 78 | #define WRINDOOR(adapter,value) writel(value, (adapter)->base + 0x20) |
| 79 | #define WROUTDOOR(adapter,value) writel(value, (adapter)->base + 0x2C) |
| 80 | |
| 81 | /* |
| 82 | * Global variables |
| 83 | */ |
| 84 | |
| 85 | static int hba_count; |
| 86 | static adapter_t *hba_soft_state[MAX_CONTROLLERS]; |
| 87 | static struct proc_dir_entry *mega_proc_dir_entry; |
| 88 | |
| 89 | /* For controller re-ordering */ |
| 90 | static struct mega_hbas mega_hbas[MAX_CONTROLLERS]; |
| 91 | |
| 92 | /* |
| 93 | * The File Operations structure for the serial/ioctl interface of the driver |
| 94 | */ |
| 95 | static struct file_operations megadev_fops = { |
| 96 | .owner = THIS_MODULE, |
| 97 | .ioctl = megadev_ioctl, |
| 98 | .open = megadev_open, |
| 99 | }; |
| 100 | |
| 101 | /* |
| 102 | * Array to structures for storing the information about the controllers. This |
| 103 | * information is sent to the user level applications, when they do an ioctl |
| 104 | * for this information. |
| 105 | */ |
| 106 | static struct mcontroller mcontroller[MAX_CONTROLLERS]; |
| 107 | |
| 108 | /* The current driver version */ |
| 109 | static u32 driver_ver = 0x02000000; |
| 110 | |
| 111 | /* major number used by the device for character interface */ |
| 112 | static int major; |
| 113 | |
| 114 | #define IS_RAID_CH(hba, ch) (((hba)->mega_ch_class >> (ch)) & 0x01) |
| 115 | |
| 116 | |
| 117 | /* |
| 118 | * Debug variable to print some diagnostic messages |
| 119 | */ |
| 120 | static int trace_level; |
| 121 | |
| 122 | /** |
| 123 | * mega_setup_mailbox() |
| 124 | * @adapter - pointer to our soft state |
| 125 | * |
| 126 | * Allocates a 8 byte aligned memory for the handshake mailbox. |
| 127 | */ |
| 128 | static int |
| 129 | mega_setup_mailbox(adapter_t *adapter) |
| 130 | { |
| 131 | unsigned long align; |
| 132 | |
| 133 | adapter->una_mbox64 = pci_alloc_consistent(adapter->dev, |
| 134 | sizeof(mbox64_t), &adapter->una_mbox64_dma); |
| 135 | |
| 136 | if( !adapter->una_mbox64 ) return -1; |
| 137 | |
| 138 | adapter->mbox = &adapter->una_mbox64->mbox; |
| 139 | |
| 140 | adapter->mbox = (mbox_t *)((((unsigned long) adapter->mbox) + 15) & |
| 141 | (~0UL ^ 0xFUL)); |
| 142 | |
| 143 | adapter->mbox64 = (mbox64_t *)(((unsigned long)adapter->mbox) - 8); |
| 144 | |
| 145 | align = ((void *)adapter->mbox) - ((void *)&adapter->una_mbox64->mbox); |
| 146 | |
| 147 | adapter->mbox_dma = adapter->una_mbox64_dma + 8 + align; |
| 148 | |
| 149 | /* |
| 150 | * Register the mailbox if the controller is an io-mapped controller |
| 151 | */ |
| 152 | if( adapter->flag & BOARD_IOMAP ) { |
| 153 | |
| 154 | outb_p(adapter->mbox_dma & 0xFF, |
| 155 | adapter->host->io_port + MBOX_PORT0); |
| 156 | |
| 157 | outb_p((adapter->mbox_dma >> 8) & 0xFF, |
| 158 | adapter->host->io_port + MBOX_PORT1); |
| 159 | |
| 160 | outb_p((adapter->mbox_dma >> 16) & 0xFF, |
| 161 | adapter->host->io_port + MBOX_PORT2); |
| 162 | |
| 163 | outb_p((adapter->mbox_dma >> 24) & 0xFF, |
| 164 | adapter->host->io_port + MBOX_PORT3); |
| 165 | |
| 166 | outb_p(ENABLE_MBOX_BYTE, |
| 167 | adapter->host->io_port + ENABLE_MBOX_REGION); |
| 168 | |
| 169 | irq_ack(adapter); |
| 170 | |
| 171 | irq_enable(adapter); |
| 172 | } |
| 173 | |
| 174 | return 0; |
| 175 | } |
| 176 | |
| 177 | |
| 178 | /* |
| 179 | * mega_query_adapter() |
| 180 | * @adapter - pointer to our soft state |
| 181 | * |
| 182 | * Issue the adapter inquiry commands to the controller and find out |
| 183 | * information and parameter about the devices attached |
| 184 | */ |
| 185 | static int |
| 186 | mega_query_adapter(adapter_t *adapter) |
| 187 | { |
| 188 | dma_addr_t prod_info_dma_handle; |
| 189 | mega_inquiry3 *inquiry3; |
| 190 | u8 raw_mbox[sizeof(struct mbox_out)]; |
| 191 | mbox_t *mbox; |
| 192 | int retval; |
| 193 | |
| 194 | /* Initialize adapter inquiry mailbox */ |
| 195 | |
| 196 | mbox = (mbox_t *)raw_mbox; |
| 197 | |
| 198 | memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE); |
| 199 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); |
| 200 | |
| 201 | /* |
| 202 | * Try to issue Inquiry3 command |
| 203 | * if not succeeded, then issue MEGA_MBOXCMD_ADAPTERINQ command and |
| 204 | * update enquiry3 structure |
| 205 | */ |
| 206 | mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle; |
| 207 | |
| 208 | inquiry3 = (mega_inquiry3 *)adapter->mega_buffer; |
| 209 | |
| 210 | raw_mbox[0] = FC_NEW_CONFIG; /* i.e. mbox->cmd=0xA1 */ |
| 211 | raw_mbox[2] = NC_SUBOP_ENQUIRY3; /* i.e. 0x0F */ |
| 212 | raw_mbox[3] = ENQ3_GET_SOLICITED_FULL; /* i.e. 0x02 */ |
| 213 | |
| 214 | /* Issue a blocking command to the card */ |
| 215 | if ((retval = issue_scb_block(adapter, raw_mbox))) { |
| 216 | /* the adapter does not support 40ld */ |
| 217 | |
| 218 | mraid_ext_inquiry *ext_inq; |
| 219 | mraid_inquiry *inq; |
| 220 | dma_addr_t dma_handle; |
| 221 | |
| 222 | ext_inq = pci_alloc_consistent(adapter->dev, |
| 223 | sizeof(mraid_ext_inquiry), &dma_handle); |
| 224 | |
| 225 | if( ext_inq == NULL ) return -1; |
| 226 | |
| 227 | inq = &ext_inq->raid_inq; |
| 228 | |
| 229 | mbox->m_out.xferaddr = (u32)dma_handle; |
| 230 | |
| 231 | /*issue old 0x04 command to adapter */ |
| 232 | mbox->m_out.cmd = MEGA_MBOXCMD_ADPEXTINQ; |
| 233 | |
| 234 | issue_scb_block(adapter, raw_mbox); |
| 235 | |
| 236 | /* |
| 237 | * update Enquiry3 and ProductInfo structures with |
| 238 | * mraid_inquiry structure |
| 239 | */ |
| 240 | mega_8_to_40ld(inq, inquiry3, |
| 241 | (mega_product_info *)&adapter->product_info); |
| 242 | |
| 243 | pci_free_consistent(adapter->dev, sizeof(mraid_ext_inquiry), |
| 244 | ext_inq, dma_handle); |
| 245 | |
| 246 | } else { /*adapter supports 40ld */ |
| 247 | adapter->flag |= BOARD_40LD; |
| 248 | |
| 249 | /* |
| 250 | * get product_info, which is static information and will be |
| 251 | * unchanged |
| 252 | */ |
| 253 | prod_info_dma_handle = pci_map_single(adapter->dev, (void *) |
| 254 | &adapter->product_info, |
| 255 | sizeof(mega_product_info), PCI_DMA_FROMDEVICE); |
| 256 | |
| 257 | mbox->m_out.xferaddr = prod_info_dma_handle; |
| 258 | |
| 259 | raw_mbox[0] = FC_NEW_CONFIG; /* i.e. mbox->cmd=0xA1 */ |
| 260 | raw_mbox[2] = NC_SUBOP_PRODUCT_INFO; /* i.e. 0x0E */ |
| 261 | |
| 262 | if ((retval = issue_scb_block(adapter, raw_mbox))) |
| 263 | printk(KERN_WARNING |
| 264 | "megaraid: Product_info cmd failed with error: %d\n", |
| 265 | retval); |
| 266 | |
| 267 | pci_unmap_single(adapter->dev, prod_info_dma_handle, |
| 268 | sizeof(mega_product_info), PCI_DMA_FROMDEVICE); |
| 269 | } |
| 270 | |
| 271 | |
| 272 | /* |
| 273 | * kernel scans the channels from 0 to <= max_channel |
| 274 | */ |
| 275 | adapter->host->max_channel = |
| 276 | adapter->product_info.nchannels + NVIRT_CHAN -1; |
| 277 | |
| 278 | adapter->host->max_id = 16; /* max targets per channel */ |
| 279 | |
| 280 | adapter->host->max_lun = 7; /* Upto 7 luns for non disk devices */ |
| 281 | |
| 282 | adapter->host->cmd_per_lun = max_cmd_per_lun; |
| 283 | |
| 284 | adapter->numldrv = inquiry3->num_ldrv; |
| 285 | |
| 286 | adapter->max_cmds = adapter->product_info.max_commands; |
| 287 | |
| 288 | if(adapter->max_cmds > MAX_COMMANDS) |
| 289 | adapter->max_cmds = MAX_COMMANDS; |
| 290 | |
| 291 | adapter->host->can_queue = adapter->max_cmds - 1; |
| 292 | |
| 293 | /* |
| 294 | * Get the maximum number of scatter-gather elements supported by this |
| 295 | * firmware |
| 296 | */ |
| 297 | mega_get_max_sgl(adapter); |
| 298 | |
| 299 | adapter->host->sg_tablesize = adapter->sglen; |
| 300 | |
| 301 | |
| 302 | /* use HP firmware and bios version encoding */ |
| 303 | if (adapter->product_info.subsysvid == HP_SUBSYS_VID) { |
| 304 | sprintf (adapter->fw_version, "%c%d%d.%d%d", |
| 305 | adapter->product_info.fw_version[2], |
| 306 | adapter->product_info.fw_version[1] >> 8, |
| 307 | adapter->product_info.fw_version[1] & 0x0f, |
| 308 | adapter->product_info.fw_version[0] >> 8, |
| 309 | adapter->product_info.fw_version[0] & 0x0f); |
| 310 | sprintf (adapter->bios_version, "%c%d%d.%d%d", |
| 311 | adapter->product_info.bios_version[2], |
| 312 | adapter->product_info.bios_version[1] >> 8, |
| 313 | adapter->product_info.bios_version[1] & 0x0f, |
| 314 | adapter->product_info.bios_version[0] >> 8, |
| 315 | adapter->product_info.bios_version[0] & 0x0f); |
| 316 | } else { |
| 317 | memcpy(adapter->fw_version, |
| 318 | (char *)adapter->product_info.fw_version, 4); |
| 319 | adapter->fw_version[4] = 0; |
| 320 | |
| 321 | memcpy(adapter->bios_version, |
| 322 | (char *)adapter->product_info.bios_version, 4); |
| 323 | |
| 324 | adapter->bios_version[4] = 0; |
| 325 | } |
| 326 | |
| 327 | printk(KERN_NOTICE "megaraid: [%s:%s] detected %d logical drives.\n", |
| 328 | adapter->fw_version, adapter->bios_version, adapter->numldrv); |
| 329 | |
| 330 | /* |
| 331 | * Do we support extended (>10 bytes) cdbs |
| 332 | */ |
| 333 | adapter->support_ext_cdb = mega_support_ext_cdb(adapter); |
| 334 | if (adapter->support_ext_cdb) |
| 335 | printk(KERN_NOTICE "megaraid: supports extended CDBs.\n"); |
| 336 | |
| 337 | |
| 338 | return 0; |
| 339 | } |
| 340 | |
| 341 | /** |
| 342 | * mega_runpendq() |
| 343 | * @adapter - pointer to our soft state |
| 344 | * |
| 345 | * Runs through the list of pending requests. |
| 346 | */ |
| 347 | static inline void |
| 348 | mega_runpendq(adapter_t *adapter) |
| 349 | { |
| 350 | if(!list_empty(&adapter->pending_list)) |
| 351 | __mega_runpendq(adapter); |
| 352 | } |
| 353 | |
| 354 | /* |
| 355 | * megaraid_queue() |
| 356 | * @scmd - Issue this scsi command |
| 357 | * @done - the callback hook into the scsi mid-layer |
| 358 | * |
| 359 | * The command queuing entry point for the mid-layer. |
| 360 | */ |
| 361 | static int |
| 362 | megaraid_queue(Scsi_Cmnd *scmd, void (*done)(Scsi_Cmnd *)) |
| 363 | { |
| 364 | adapter_t *adapter; |
| 365 | scb_t *scb; |
| 366 | int busy=0; |
Christoph Hellwig | cb0258a | 2005-10-31 20:12:07 +0100 | [diff] [blame] | 367 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 368 | |
| 369 | adapter = (adapter_t *)scmd->device->host->hostdata; |
| 370 | |
| 371 | scmd->scsi_done = done; |
| 372 | |
| 373 | |
| 374 | /* |
| 375 | * Allocate and build a SCB request |
| 376 | * busy flag will be set if mega_build_cmd() command could not |
| 377 | * allocate scb. We will return non-zero status in that case. |
| 378 | * NOTE: scb can be null even though certain commands completed |
| 379 | * successfully, e.g., MODE_SENSE and TEST_UNIT_READY, we would |
| 380 | * return 0 in that case. |
| 381 | */ |
| 382 | |
Christoph Hellwig | cb0258a | 2005-10-31 20:12:07 +0100 | [diff] [blame] | 383 | spin_lock_irqsave(&adapter->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 384 | scb = mega_build_cmd(adapter, scmd, &busy); |
Christoph Hellwig | 238f9b0 | 2005-11-29 21:36:16 +0100 | [diff] [blame] | 385 | if (!scb) |
| 386 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 387 | |
Christoph Hellwig | 238f9b0 | 2005-11-29 21:36:16 +0100 | [diff] [blame] | 388 | scb->state |= SCB_PENDQ; |
| 389 | list_add_tail(&scb->list, &adapter->pending_list); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 390 | |
Christoph Hellwig | 238f9b0 | 2005-11-29 21:36:16 +0100 | [diff] [blame] | 391 | /* |
| 392 | * Check if the HBA is in quiescent state, e.g., during a |
| 393 | * delete logical drive opertion. If it is, don't run |
| 394 | * the pending_list. |
| 395 | */ |
| 396 | if (atomic_read(&adapter->quiescent) == 0) |
| 397 | mega_runpendq(adapter); |
| 398 | |
| 399 | busy = 0; |
| 400 | out: |
Christoph Hellwig | cb0258a | 2005-10-31 20:12:07 +0100 | [diff] [blame] | 401 | spin_unlock_irqrestore(&adapter->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 402 | return busy; |
| 403 | } |
| 404 | |
| 405 | /** |
| 406 | * mega_allocate_scb() |
| 407 | * @adapter - pointer to our soft state |
| 408 | * @cmd - scsi command from the mid-layer |
| 409 | * |
| 410 | * Allocate a SCB structure. This is the central structure for controller |
| 411 | * commands. |
| 412 | */ |
| 413 | static inline scb_t * |
| 414 | mega_allocate_scb(adapter_t *adapter, Scsi_Cmnd *cmd) |
| 415 | { |
| 416 | struct list_head *head = &adapter->free_list; |
| 417 | scb_t *scb; |
| 418 | |
| 419 | /* Unlink command from Free List */ |
| 420 | if( !list_empty(head) ) { |
| 421 | |
| 422 | scb = list_entry(head->next, scb_t, list); |
| 423 | |
| 424 | list_del_init(head->next); |
| 425 | |
| 426 | scb->state = SCB_ACTIVE; |
| 427 | scb->cmd = cmd; |
| 428 | scb->dma_type = MEGA_DMA_TYPE_NONE; |
| 429 | |
| 430 | return scb; |
| 431 | } |
| 432 | |
| 433 | return NULL; |
| 434 | } |
| 435 | |
| 436 | /** |
| 437 | * mega_get_ldrv_num() |
| 438 | * @adapter - pointer to our soft state |
| 439 | * @cmd - scsi mid layer command |
| 440 | * @channel - channel on the controller |
| 441 | * |
| 442 | * Calculate the logical drive number based on the information in scsi command |
| 443 | * and the channel number. |
| 444 | */ |
| 445 | static inline int |
| 446 | mega_get_ldrv_num(adapter_t *adapter, Scsi_Cmnd *cmd, int channel) |
| 447 | { |
| 448 | int tgt; |
| 449 | int ldrv_num; |
| 450 | |
| 451 | tgt = cmd->device->id; |
| 452 | |
| 453 | if ( tgt > adapter->this_id ) |
| 454 | tgt--; /* we do not get inquires for initiator id */ |
| 455 | |
| 456 | ldrv_num = (channel * 15) + tgt; |
| 457 | |
| 458 | |
| 459 | /* |
| 460 | * If we have a logical drive with boot enabled, project it first |
| 461 | */ |
| 462 | if( adapter->boot_ldrv_enabled ) { |
| 463 | if( ldrv_num == 0 ) { |
| 464 | ldrv_num = adapter->boot_ldrv; |
| 465 | } |
| 466 | else { |
| 467 | if( ldrv_num <= adapter->boot_ldrv ) { |
| 468 | ldrv_num--; |
| 469 | } |
| 470 | } |
| 471 | } |
| 472 | |
| 473 | /* |
| 474 | * If "delete logical drive" feature is enabled on this controller. |
| 475 | * Do only if at least one delete logical drive operation was done. |
| 476 | * |
| 477 | * Also, after logical drive deletion, instead of logical drive number, |
| 478 | * the value returned should be 0x80+logical drive id. |
| 479 | * |
| 480 | * These is valid only for IO commands. |
| 481 | */ |
| 482 | |
| 483 | if (adapter->support_random_del && adapter->read_ldidmap ) |
| 484 | switch (cmd->cmnd[0]) { |
| 485 | case READ_6: /* fall through */ |
| 486 | case WRITE_6: /* fall through */ |
| 487 | case READ_10: /* fall through */ |
| 488 | case WRITE_10: |
| 489 | ldrv_num += 0x80; |
| 490 | } |
| 491 | |
| 492 | return ldrv_num; |
| 493 | } |
| 494 | |
| 495 | /** |
| 496 | * mega_build_cmd() |
| 497 | * @adapter - pointer to our soft state |
| 498 | * @cmd - Prepare using this scsi command |
| 499 | * @busy - busy flag if no resources |
| 500 | * |
| 501 | * Prepares a command and scatter gather list for the controller. This routine |
| 502 | * also finds out if the commands is intended for a logical drive or a |
| 503 | * physical device and prepares the controller command accordingly. |
| 504 | * |
| 505 | * We also re-order the logical drives and physical devices based on their |
| 506 | * boot settings. |
| 507 | */ |
| 508 | static scb_t * |
| 509 | mega_build_cmd(adapter_t *adapter, Scsi_Cmnd *cmd, int *busy) |
| 510 | { |
| 511 | mega_ext_passthru *epthru; |
| 512 | mega_passthru *pthru; |
| 513 | scb_t *scb; |
| 514 | mbox_t *mbox; |
| 515 | long seg; |
| 516 | char islogical; |
| 517 | int max_ldrv_num; |
| 518 | int channel = 0; |
| 519 | int target = 0; |
| 520 | int ldrv_num = 0; /* logical drive number */ |
| 521 | |
| 522 | |
| 523 | /* |
| 524 | * filter the internal and ioctl commands |
| 525 | */ |
| 526 | if((cmd->cmnd[0] == MEGA_INTERNAL_CMD)) { |
Christoph Hellwig | 5d5ff44 | 2006-06-03 13:21:13 +0200 | [diff] [blame] | 527 | return cmd->request_buffer; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 528 | } |
| 529 | |
| 530 | |
| 531 | /* |
| 532 | * We know what channels our logical drives are on - mega_find_card() |
| 533 | */ |
| 534 | islogical = adapter->logdrv_chan[cmd->device->channel]; |
| 535 | |
| 536 | /* |
| 537 | * The theory: If physical drive is chosen for boot, all the physical |
| 538 | * devices are exported before the logical drives, otherwise physical |
| 539 | * devices are pushed after logical drives, in which case - Kernel sees |
| 540 | * the physical devices on virtual channel which is obviously converted |
| 541 | * to actual channel on the HBA. |
| 542 | */ |
| 543 | if( adapter->boot_pdrv_enabled ) { |
| 544 | if( islogical ) { |
| 545 | /* logical channel */ |
| 546 | channel = cmd->device->channel - |
| 547 | adapter->product_info.nchannels; |
| 548 | } |
| 549 | else { |
| 550 | /* this is physical channel */ |
| 551 | channel = cmd->device->channel; |
| 552 | target = cmd->device->id; |
| 553 | |
| 554 | /* |
| 555 | * boot from a physical disk, that disk needs to be |
| 556 | * exposed first IF both the channels are SCSI, then |
| 557 | * booting from the second channel is not allowed. |
| 558 | */ |
| 559 | if( target == 0 ) { |
| 560 | target = adapter->boot_pdrv_tgt; |
| 561 | } |
| 562 | else if( target == adapter->boot_pdrv_tgt ) { |
| 563 | target = 0; |
| 564 | } |
| 565 | } |
| 566 | } |
| 567 | else { |
| 568 | if( islogical ) { |
| 569 | /* this is the logical channel */ |
| 570 | channel = cmd->device->channel; |
| 571 | } |
| 572 | else { |
| 573 | /* physical channel */ |
| 574 | channel = cmd->device->channel - NVIRT_CHAN; |
| 575 | target = cmd->device->id; |
| 576 | } |
| 577 | } |
| 578 | |
| 579 | |
| 580 | if(islogical) { |
| 581 | |
| 582 | /* have just LUN 0 for each target on virtual channels */ |
| 583 | if (cmd->device->lun) { |
| 584 | cmd->result = (DID_BAD_TARGET << 16); |
| 585 | cmd->scsi_done(cmd); |
| 586 | return NULL; |
| 587 | } |
| 588 | |
| 589 | ldrv_num = mega_get_ldrv_num(adapter, cmd, channel); |
| 590 | |
| 591 | |
| 592 | max_ldrv_num = (adapter->flag & BOARD_40LD) ? |
| 593 | MAX_LOGICAL_DRIVES_40LD : MAX_LOGICAL_DRIVES_8LD; |
| 594 | |
| 595 | /* |
| 596 | * max_ldrv_num increases by 0x80 if some logical drive was |
| 597 | * deleted. |
| 598 | */ |
| 599 | if(adapter->read_ldidmap) |
| 600 | max_ldrv_num += 0x80; |
| 601 | |
| 602 | if(ldrv_num > max_ldrv_num ) { |
| 603 | cmd->result = (DID_BAD_TARGET << 16); |
| 604 | cmd->scsi_done(cmd); |
| 605 | return NULL; |
| 606 | } |
| 607 | |
| 608 | } |
| 609 | else { |
| 610 | if( cmd->device->lun > 7) { |
| 611 | /* |
| 612 | * Do not support lun >7 for physically accessed |
| 613 | * devices |
| 614 | */ |
| 615 | cmd->result = (DID_BAD_TARGET << 16); |
| 616 | cmd->scsi_done(cmd); |
| 617 | return NULL; |
| 618 | } |
| 619 | } |
| 620 | |
| 621 | /* |
| 622 | * |
| 623 | * Logical drive commands |
| 624 | * |
| 625 | */ |
| 626 | if(islogical) { |
| 627 | switch (cmd->cmnd[0]) { |
| 628 | case TEST_UNIT_READY: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 629 | #if MEGA_HAVE_CLUSTERING |
| 630 | /* |
| 631 | * Do we support clustering and is the support enabled |
| 632 | * If no, return success always |
| 633 | */ |
| 634 | if( !adapter->has_cluster ) { |
| 635 | cmd->result = (DID_OK << 16); |
| 636 | cmd->scsi_done(cmd); |
| 637 | return NULL; |
| 638 | } |
| 639 | |
| 640 | if(!(scb = mega_allocate_scb(adapter, cmd))) { |
| 641 | *busy = 1; |
| 642 | return NULL; |
| 643 | } |
| 644 | |
| 645 | scb->raw_mbox[0] = MEGA_CLUSTER_CMD; |
| 646 | scb->raw_mbox[2] = MEGA_RESERVATION_STATUS; |
| 647 | scb->raw_mbox[3] = ldrv_num; |
| 648 | |
| 649 | scb->dma_direction = PCI_DMA_NONE; |
| 650 | |
| 651 | return scb; |
| 652 | #else |
| 653 | cmd->result = (DID_OK << 16); |
| 654 | cmd->scsi_done(cmd); |
| 655 | return NULL; |
| 656 | #endif |
| 657 | |
James Bottomley | 51c928c | 2005-10-01 09:38:05 -0500 | [diff] [blame] | 658 | case MODE_SENSE: { |
| 659 | char *buf; |
| 660 | |
| 661 | if (cmd->use_sg) { |
| 662 | struct scatterlist *sg; |
| 663 | |
| 664 | sg = (struct scatterlist *)cmd->request_buffer; |
| 665 | buf = kmap_atomic(sg->page, KM_IRQ0) + |
| 666 | sg->offset; |
| 667 | } else |
| 668 | buf = cmd->request_buffer; |
Mark Lord | f035330 | 2005-12-07 17:46:57 -0500 | [diff] [blame] | 669 | memset(buf, 0, cmd->cmnd[4]); |
James Bottomley | 51c928c | 2005-10-01 09:38:05 -0500 | [diff] [blame] | 670 | if (cmd->use_sg) { |
| 671 | struct scatterlist *sg; |
| 672 | |
| 673 | sg = (struct scatterlist *)cmd->request_buffer; |
| 674 | kunmap_atomic(buf - sg->offset, KM_IRQ0); |
| 675 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 676 | cmd->result = (DID_OK << 16); |
| 677 | cmd->scsi_done(cmd); |
| 678 | return NULL; |
James Bottomley | 51c928c | 2005-10-01 09:38:05 -0500 | [diff] [blame] | 679 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 680 | |
| 681 | case READ_CAPACITY: |
| 682 | case INQUIRY: |
| 683 | |
| 684 | if(!(adapter->flag & (1L << cmd->device->channel))) { |
| 685 | |
| 686 | printk(KERN_NOTICE |
| 687 | "scsi%d: scanning scsi channel %d ", |
| 688 | adapter->host->host_no, |
| 689 | cmd->device->channel); |
| 690 | printk("for logical drives.\n"); |
| 691 | |
| 692 | adapter->flag |= (1L << cmd->device->channel); |
| 693 | } |
| 694 | |
| 695 | /* Allocate a SCB and initialize passthru */ |
| 696 | if(!(scb = mega_allocate_scb(adapter, cmd))) { |
| 697 | *busy = 1; |
| 698 | return NULL; |
| 699 | } |
| 700 | pthru = scb->pthru; |
| 701 | |
| 702 | mbox = (mbox_t *)scb->raw_mbox; |
| 703 | memset(mbox, 0, sizeof(scb->raw_mbox)); |
| 704 | memset(pthru, 0, sizeof(mega_passthru)); |
| 705 | |
| 706 | pthru->timeout = 0; |
| 707 | pthru->ars = 1; |
| 708 | pthru->reqsenselen = 14; |
| 709 | pthru->islogical = 1; |
| 710 | pthru->logdrv = ldrv_num; |
| 711 | pthru->cdblen = cmd->cmd_len; |
| 712 | memcpy(pthru->cdb, cmd->cmnd, cmd->cmd_len); |
| 713 | |
| 714 | if( adapter->has_64bit_addr ) { |
| 715 | mbox->m_out.cmd = MEGA_MBOXCMD_PASSTHRU64; |
| 716 | } |
| 717 | else { |
| 718 | mbox->m_out.cmd = MEGA_MBOXCMD_PASSTHRU; |
| 719 | } |
| 720 | |
| 721 | scb->dma_direction = PCI_DMA_FROMDEVICE; |
| 722 | |
| 723 | pthru->numsgelements = mega_build_sglist(adapter, scb, |
| 724 | &pthru->dataxferaddr, &pthru->dataxferlen); |
| 725 | |
| 726 | mbox->m_out.xferaddr = scb->pthru_dma_addr; |
| 727 | |
| 728 | return scb; |
| 729 | |
| 730 | case READ_6: |
| 731 | case WRITE_6: |
| 732 | case READ_10: |
| 733 | case WRITE_10: |
| 734 | case READ_12: |
| 735 | case WRITE_12: |
| 736 | |
| 737 | /* Allocate a SCB and initialize mailbox */ |
| 738 | if(!(scb = mega_allocate_scb(adapter, cmd))) { |
| 739 | *busy = 1; |
| 740 | return NULL; |
| 741 | } |
| 742 | mbox = (mbox_t *)scb->raw_mbox; |
| 743 | |
| 744 | memset(mbox, 0, sizeof(scb->raw_mbox)); |
| 745 | mbox->m_out.logdrv = ldrv_num; |
| 746 | |
| 747 | /* |
| 748 | * A little hack: 2nd bit is zero for all scsi read |
| 749 | * commands and is set for all scsi write commands |
| 750 | */ |
| 751 | if( adapter->has_64bit_addr ) { |
| 752 | mbox->m_out.cmd = (*cmd->cmnd & 0x02) ? |
| 753 | MEGA_MBOXCMD_LWRITE64: |
| 754 | MEGA_MBOXCMD_LREAD64 ; |
| 755 | } |
| 756 | else { |
| 757 | mbox->m_out.cmd = (*cmd->cmnd & 0x02) ? |
| 758 | MEGA_MBOXCMD_LWRITE: |
| 759 | MEGA_MBOXCMD_LREAD ; |
| 760 | } |
| 761 | |
| 762 | /* |
| 763 | * 6-byte READ(0x08) or WRITE(0x0A) cdb |
| 764 | */ |
| 765 | if( cmd->cmd_len == 6 ) { |
| 766 | mbox->m_out.numsectors = (u32) cmd->cmnd[4]; |
| 767 | mbox->m_out.lba = |
| 768 | ((u32)cmd->cmnd[1] << 16) | |
| 769 | ((u32)cmd->cmnd[2] << 8) | |
| 770 | (u32)cmd->cmnd[3]; |
| 771 | |
| 772 | mbox->m_out.lba &= 0x1FFFFF; |
| 773 | |
| 774 | #if MEGA_HAVE_STATS |
| 775 | /* |
| 776 | * Take modulo 0x80, since the logical drive |
| 777 | * number increases by 0x80 when a logical |
| 778 | * drive was deleted |
| 779 | */ |
| 780 | if (*cmd->cmnd == READ_6) { |
| 781 | adapter->nreads[ldrv_num%0x80]++; |
| 782 | adapter->nreadblocks[ldrv_num%0x80] += |
| 783 | mbox->m_out.numsectors; |
| 784 | } else { |
| 785 | adapter->nwrites[ldrv_num%0x80]++; |
| 786 | adapter->nwriteblocks[ldrv_num%0x80] += |
| 787 | mbox->m_out.numsectors; |
| 788 | } |
| 789 | #endif |
| 790 | } |
| 791 | |
| 792 | /* |
| 793 | * 10-byte READ(0x28) or WRITE(0x2A) cdb |
| 794 | */ |
| 795 | if( cmd->cmd_len == 10 ) { |
| 796 | mbox->m_out.numsectors = |
| 797 | (u32)cmd->cmnd[8] | |
| 798 | ((u32)cmd->cmnd[7] << 8); |
| 799 | mbox->m_out.lba = |
| 800 | ((u32)cmd->cmnd[2] << 24) | |
| 801 | ((u32)cmd->cmnd[3] << 16) | |
| 802 | ((u32)cmd->cmnd[4] << 8) | |
| 803 | (u32)cmd->cmnd[5]; |
| 804 | |
| 805 | #if MEGA_HAVE_STATS |
| 806 | if (*cmd->cmnd == READ_10) { |
| 807 | adapter->nreads[ldrv_num%0x80]++; |
| 808 | adapter->nreadblocks[ldrv_num%0x80] += |
| 809 | mbox->m_out.numsectors; |
| 810 | } else { |
| 811 | adapter->nwrites[ldrv_num%0x80]++; |
| 812 | adapter->nwriteblocks[ldrv_num%0x80] += |
| 813 | mbox->m_out.numsectors; |
| 814 | } |
| 815 | #endif |
| 816 | } |
| 817 | |
| 818 | /* |
| 819 | * 12-byte READ(0xA8) or WRITE(0xAA) cdb |
| 820 | */ |
| 821 | if( cmd->cmd_len == 12 ) { |
| 822 | mbox->m_out.lba = |
| 823 | ((u32)cmd->cmnd[2] << 24) | |
| 824 | ((u32)cmd->cmnd[3] << 16) | |
| 825 | ((u32)cmd->cmnd[4] << 8) | |
| 826 | (u32)cmd->cmnd[5]; |
| 827 | |
| 828 | mbox->m_out.numsectors = |
| 829 | ((u32)cmd->cmnd[6] << 24) | |
| 830 | ((u32)cmd->cmnd[7] << 16) | |
| 831 | ((u32)cmd->cmnd[8] << 8) | |
| 832 | (u32)cmd->cmnd[9]; |
| 833 | |
| 834 | #if MEGA_HAVE_STATS |
| 835 | if (*cmd->cmnd == READ_12) { |
| 836 | adapter->nreads[ldrv_num%0x80]++; |
| 837 | adapter->nreadblocks[ldrv_num%0x80] += |
| 838 | mbox->m_out.numsectors; |
| 839 | } else { |
| 840 | adapter->nwrites[ldrv_num%0x80]++; |
| 841 | adapter->nwriteblocks[ldrv_num%0x80] += |
| 842 | mbox->m_out.numsectors; |
| 843 | } |
| 844 | #endif |
| 845 | } |
| 846 | |
| 847 | /* |
| 848 | * If it is a read command |
| 849 | */ |
| 850 | if( (*cmd->cmnd & 0x0F) == 0x08 ) { |
| 851 | scb->dma_direction = PCI_DMA_FROMDEVICE; |
| 852 | } |
| 853 | else { |
| 854 | scb->dma_direction = PCI_DMA_TODEVICE; |
| 855 | } |
| 856 | |
| 857 | /* Calculate Scatter-Gather info */ |
| 858 | mbox->m_out.numsgelements = mega_build_sglist(adapter, scb, |
| 859 | (u32 *)&mbox->m_out.xferaddr, (u32 *)&seg); |
| 860 | |
| 861 | return scb; |
| 862 | |
| 863 | #if MEGA_HAVE_CLUSTERING |
| 864 | case RESERVE: /* Fall through */ |
| 865 | case RELEASE: |
| 866 | |
| 867 | /* |
| 868 | * Do we support clustering and is the support enabled |
| 869 | */ |
| 870 | if( ! adapter->has_cluster ) { |
| 871 | |
| 872 | cmd->result = (DID_BAD_TARGET << 16); |
| 873 | cmd->scsi_done(cmd); |
| 874 | return NULL; |
| 875 | } |
| 876 | |
| 877 | /* Allocate a SCB and initialize mailbox */ |
| 878 | if(!(scb = mega_allocate_scb(adapter, cmd))) { |
| 879 | *busy = 1; |
| 880 | return NULL; |
| 881 | } |
| 882 | |
| 883 | scb->raw_mbox[0] = MEGA_CLUSTER_CMD; |
| 884 | scb->raw_mbox[2] = ( *cmd->cmnd == RESERVE ) ? |
| 885 | MEGA_RESERVE_LD : MEGA_RELEASE_LD; |
| 886 | |
| 887 | scb->raw_mbox[3] = ldrv_num; |
| 888 | |
| 889 | scb->dma_direction = PCI_DMA_NONE; |
| 890 | |
| 891 | return scb; |
| 892 | #endif |
| 893 | |
| 894 | default: |
| 895 | cmd->result = (DID_BAD_TARGET << 16); |
| 896 | cmd->scsi_done(cmd); |
| 897 | return NULL; |
| 898 | } |
| 899 | } |
| 900 | |
| 901 | /* |
| 902 | * Passthru drive commands |
| 903 | */ |
| 904 | else { |
| 905 | /* Allocate a SCB and initialize passthru */ |
| 906 | if(!(scb = mega_allocate_scb(adapter, cmd))) { |
| 907 | *busy = 1; |
| 908 | return NULL; |
| 909 | } |
| 910 | |
| 911 | mbox = (mbox_t *)scb->raw_mbox; |
| 912 | memset(mbox, 0, sizeof(scb->raw_mbox)); |
| 913 | |
| 914 | if( adapter->support_ext_cdb ) { |
| 915 | |
| 916 | epthru = mega_prepare_extpassthru(adapter, scb, cmd, |
| 917 | channel, target); |
| 918 | |
| 919 | mbox->m_out.cmd = MEGA_MBOXCMD_EXTPTHRU; |
| 920 | |
| 921 | mbox->m_out.xferaddr = scb->epthru_dma_addr; |
| 922 | |
| 923 | } |
| 924 | else { |
| 925 | |
| 926 | pthru = mega_prepare_passthru(adapter, scb, cmd, |
| 927 | channel, target); |
| 928 | |
| 929 | /* Initialize mailbox */ |
| 930 | if( adapter->has_64bit_addr ) { |
| 931 | mbox->m_out.cmd = MEGA_MBOXCMD_PASSTHRU64; |
| 932 | } |
| 933 | else { |
| 934 | mbox->m_out.cmd = MEGA_MBOXCMD_PASSTHRU; |
| 935 | } |
| 936 | |
| 937 | mbox->m_out.xferaddr = scb->pthru_dma_addr; |
| 938 | |
| 939 | } |
| 940 | return scb; |
| 941 | } |
| 942 | return NULL; |
| 943 | } |
| 944 | |
| 945 | |
| 946 | /** |
| 947 | * mega_prepare_passthru() |
| 948 | * @adapter - pointer to our soft state |
| 949 | * @scb - our scsi control block |
| 950 | * @cmd - scsi command from the mid-layer |
| 951 | * @channel - actual channel on the controller |
| 952 | * @target - actual id on the controller. |
| 953 | * |
| 954 | * prepare a command for the scsi physical devices. |
| 955 | */ |
| 956 | static mega_passthru * |
| 957 | mega_prepare_passthru(adapter_t *adapter, scb_t *scb, Scsi_Cmnd *cmd, |
| 958 | int channel, int target) |
| 959 | { |
| 960 | mega_passthru *pthru; |
| 961 | |
| 962 | pthru = scb->pthru; |
| 963 | memset(pthru, 0, sizeof (mega_passthru)); |
| 964 | |
| 965 | /* 0=6sec/1=60sec/2=10min/3=3hrs */ |
| 966 | pthru->timeout = 2; |
| 967 | |
| 968 | pthru->ars = 1; |
| 969 | pthru->reqsenselen = 14; |
| 970 | pthru->islogical = 0; |
| 971 | |
| 972 | pthru->channel = (adapter->flag & BOARD_40LD) ? 0 : channel; |
| 973 | |
| 974 | pthru->target = (adapter->flag & BOARD_40LD) ? |
| 975 | (channel << 4) | target : target; |
| 976 | |
| 977 | pthru->cdblen = cmd->cmd_len; |
| 978 | pthru->logdrv = cmd->device->lun; |
| 979 | |
| 980 | memcpy(pthru->cdb, cmd->cmnd, cmd->cmd_len); |
| 981 | |
| 982 | /* Not sure about the direction */ |
| 983 | scb->dma_direction = PCI_DMA_BIDIRECTIONAL; |
| 984 | |
| 985 | /* Special Code for Handling READ_CAPA/ INQ using bounce buffers */ |
| 986 | switch (cmd->cmnd[0]) { |
| 987 | case INQUIRY: |
| 988 | case READ_CAPACITY: |
| 989 | if(!(adapter->flag & (1L << cmd->device->channel))) { |
| 990 | |
| 991 | printk(KERN_NOTICE |
| 992 | "scsi%d: scanning scsi channel %d [P%d] ", |
| 993 | adapter->host->host_no, |
| 994 | cmd->device->channel, channel); |
| 995 | printk("for physical devices.\n"); |
| 996 | |
| 997 | adapter->flag |= (1L << cmd->device->channel); |
| 998 | } |
| 999 | /* Fall through */ |
| 1000 | default: |
| 1001 | pthru->numsgelements = mega_build_sglist(adapter, scb, |
| 1002 | &pthru->dataxferaddr, &pthru->dataxferlen); |
| 1003 | break; |
| 1004 | } |
| 1005 | return pthru; |
| 1006 | } |
| 1007 | |
| 1008 | |
| 1009 | /** |
| 1010 | * mega_prepare_extpassthru() |
| 1011 | * @adapter - pointer to our soft state |
| 1012 | * @scb - our scsi control block |
| 1013 | * @cmd - scsi command from the mid-layer |
| 1014 | * @channel - actual channel on the controller |
| 1015 | * @target - actual id on the controller. |
| 1016 | * |
| 1017 | * prepare a command for the scsi physical devices. This rountine prepares |
| 1018 | * commands for devices which can take extended CDBs (>10 bytes) |
| 1019 | */ |
| 1020 | static mega_ext_passthru * |
| 1021 | mega_prepare_extpassthru(adapter_t *adapter, scb_t *scb, Scsi_Cmnd *cmd, |
| 1022 | int channel, int target) |
| 1023 | { |
| 1024 | mega_ext_passthru *epthru; |
| 1025 | |
| 1026 | epthru = scb->epthru; |
| 1027 | memset(epthru, 0, sizeof(mega_ext_passthru)); |
| 1028 | |
| 1029 | /* 0=6sec/1=60sec/2=10min/3=3hrs */ |
| 1030 | epthru->timeout = 2; |
| 1031 | |
| 1032 | epthru->ars = 1; |
| 1033 | epthru->reqsenselen = 14; |
| 1034 | epthru->islogical = 0; |
| 1035 | |
| 1036 | epthru->channel = (adapter->flag & BOARD_40LD) ? 0 : channel; |
| 1037 | epthru->target = (adapter->flag & BOARD_40LD) ? |
| 1038 | (channel << 4) | target : target; |
| 1039 | |
| 1040 | epthru->cdblen = cmd->cmd_len; |
| 1041 | epthru->logdrv = cmd->device->lun; |
| 1042 | |
| 1043 | memcpy(epthru->cdb, cmd->cmnd, cmd->cmd_len); |
| 1044 | |
| 1045 | /* Not sure about the direction */ |
| 1046 | scb->dma_direction = PCI_DMA_BIDIRECTIONAL; |
| 1047 | |
| 1048 | switch(cmd->cmnd[0]) { |
| 1049 | case INQUIRY: |
| 1050 | case READ_CAPACITY: |
| 1051 | if(!(adapter->flag & (1L << cmd->device->channel))) { |
| 1052 | |
| 1053 | printk(KERN_NOTICE |
| 1054 | "scsi%d: scanning scsi channel %d [P%d] ", |
| 1055 | adapter->host->host_no, |
| 1056 | cmd->device->channel, channel); |
| 1057 | printk("for physical devices.\n"); |
| 1058 | |
| 1059 | adapter->flag |= (1L << cmd->device->channel); |
| 1060 | } |
| 1061 | /* Fall through */ |
| 1062 | default: |
| 1063 | epthru->numsgelements = mega_build_sglist(adapter, scb, |
| 1064 | &epthru->dataxferaddr, &epthru->dataxferlen); |
| 1065 | break; |
| 1066 | } |
| 1067 | |
| 1068 | return epthru; |
| 1069 | } |
| 1070 | |
| 1071 | static void |
| 1072 | __mega_runpendq(adapter_t *adapter) |
| 1073 | { |
| 1074 | scb_t *scb; |
| 1075 | struct list_head *pos, *next; |
| 1076 | |
| 1077 | /* Issue any pending commands to the card */ |
| 1078 | list_for_each_safe(pos, next, &adapter->pending_list) { |
| 1079 | |
| 1080 | scb = list_entry(pos, scb_t, list); |
| 1081 | |
| 1082 | if( !(scb->state & SCB_ISSUED) ) { |
| 1083 | |
| 1084 | if( issue_scb(adapter, scb) != 0 ) |
| 1085 | return; |
| 1086 | } |
| 1087 | } |
| 1088 | |
| 1089 | return; |
| 1090 | } |
| 1091 | |
| 1092 | |
| 1093 | /** |
| 1094 | * issue_scb() |
| 1095 | * @adapter - pointer to our soft state |
| 1096 | * @scb - scsi control block |
| 1097 | * |
| 1098 | * Post a command to the card if the mailbox is available, otherwise return |
| 1099 | * busy. We also take the scb from the pending list if the mailbox is |
| 1100 | * available. |
| 1101 | */ |
| 1102 | static int |
| 1103 | issue_scb(adapter_t *adapter, scb_t *scb) |
| 1104 | { |
| 1105 | volatile mbox64_t *mbox64 = adapter->mbox64; |
| 1106 | volatile mbox_t *mbox = adapter->mbox; |
| 1107 | unsigned int i = 0; |
| 1108 | |
| 1109 | if(unlikely(mbox->m_in.busy)) { |
| 1110 | do { |
| 1111 | udelay(1); |
| 1112 | i++; |
| 1113 | } while( mbox->m_in.busy && (i < max_mbox_busy_wait) ); |
| 1114 | |
| 1115 | if(mbox->m_in.busy) return -1; |
| 1116 | } |
| 1117 | |
| 1118 | /* Copy mailbox data into host structure */ |
| 1119 | memcpy((char *)&mbox->m_out, (char *)scb->raw_mbox, |
| 1120 | sizeof(struct mbox_out)); |
| 1121 | |
| 1122 | mbox->m_out.cmdid = scb->idx; /* Set cmdid */ |
| 1123 | mbox->m_in.busy = 1; /* Set busy */ |
| 1124 | |
| 1125 | |
| 1126 | /* |
| 1127 | * Increment the pending queue counter |
| 1128 | */ |
| 1129 | atomic_inc(&adapter->pend_cmds); |
| 1130 | |
| 1131 | switch (mbox->m_out.cmd) { |
| 1132 | case MEGA_MBOXCMD_LREAD64: |
| 1133 | case MEGA_MBOXCMD_LWRITE64: |
| 1134 | case MEGA_MBOXCMD_PASSTHRU64: |
| 1135 | case MEGA_MBOXCMD_EXTPTHRU: |
| 1136 | mbox64->xfer_segment_lo = mbox->m_out.xferaddr; |
| 1137 | mbox64->xfer_segment_hi = 0; |
| 1138 | mbox->m_out.xferaddr = 0xFFFFFFFF; |
| 1139 | break; |
| 1140 | default: |
| 1141 | mbox64->xfer_segment_lo = 0; |
| 1142 | mbox64->xfer_segment_hi = 0; |
| 1143 | } |
| 1144 | |
| 1145 | /* |
| 1146 | * post the command |
| 1147 | */ |
| 1148 | scb->state |= SCB_ISSUED; |
| 1149 | |
| 1150 | if( likely(adapter->flag & BOARD_MEMMAP) ) { |
| 1151 | mbox->m_in.poll = 0; |
| 1152 | mbox->m_in.ack = 0; |
| 1153 | WRINDOOR(adapter, adapter->mbox_dma | 0x1); |
| 1154 | } |
| 1155 | else { |
| 1156 | irq_enable(adapter); |
| 1157 | issue_command(adapter); |
| 1158 | } |
| 1159 | |
| 1160 | return 0; |
| 1161 | } |
| 1162 | |
| 1163 | /* |
| 1164 | * Wait until the controller's mailbox is available |
| 1165 | */ |
| 1166 | static inline int |
| 1167 | mega_busywait_mbox (adapter_t *adapter) |
| 1168 | { |
| 1169 | if (adapter->mbox->m_in.busy) |
| 1170 | return __mega_busywait_mbox(adapter); |
| 1171 | return 0; |
| 1172 | } |
| 1173 | |
| 1174 | /** |
| 1175 | * issue_scb_block() |
| 1176 | * @adapter - pointer to our soft state |
| 1177 | * @raw_mbox - the mailbox |
| 1178 | * |
| 1179 | * Issue a scb in synchronous and non-interrupt mode |
| 1180 | */ |
| 1181 | static int |
| 1182 | issue_scb_block(adapter_t *adapter, u_char *raw_mbox) |
| 1183 | { |
| 1184 | volatile mbox64_t *mbox64 = adapter->mbox64; |
| 1185 | volatile mbox_t *mbox = adapter->mbox; |
| 1186 | u8 byte; |
| 1187 | |
| 1188 | /* Wait until mailbox is free */ |
| 1189 | if(mega_busywait_mbox (adapter)) |
| 1190 | goto bug_blocked_mailbox; |
| 1191 | |
| 1192 | /* Copy mailbox data into host structure */ |
| 1193 | memcpy((char *) mbox, raw_mbox, sizeof(struct mbox_out)); |
| 1194 | mbox->m_out.cmdid = 0xFE; |
| 1195 | mbox->m_in.busy = 1; |
| 1196 | |
| 1197 | switch (raw_mbox[0]) { |
| 1198 | case MEGA_MBOXCMD_LREAD64: |
| 1199 | case MEGA_MBOXCMD_LWRITE64: |
| 1200 | case MEGA_MBOXCMD_PASSTHRU64: |
| 1201 | case MEGA_MBOXCMD_EXTPTHRU: |
| 1202 | mbox64->xfer_segment_lo = mbox->m_out.xferaddr; |
| 1203 | mbox64->xfer_segment_hi = 0; |
| 1204 | mbox->m_out.xferaddr = 0xFFFFFFFF; |
| 1205 | break; |
| 1206 | default: |
| 1207 | mbox64->xfer_segment_lo = 0; |
| 1208 | mbox64->xfer_segment_hi = 0; |
| 1209 | } |
| 1210 | |
| 1211 | if( likely(adapter->flag & BOARD_MEMMAP) ) { |
| 1212 | mbox->m_in.poll = 0; |
| 1213 | mbox->m_in.ack = 0; |
| 1214 | mbox->m_in.numstatus = 0xFF; |
| 1215 | mbox->m_in.status = 0xFF; |
| 1216 | WRINDOOR(adapter, adapter->mbox_dma | 0x1); |
| 1217 | |
| 1218 | while((volatile u8)mbox->m_in.numstatus == 0xFF) |
| 1219 | cpu_relax(); |
| 1220 | |
| 1221 | mbox->m_in.numstatus = 0xFF; |
| 1222 | |
| 1223 | while( (volatile u8)mbox->m_in.poll != 0x77 ) |
| 1224 | cpu_relax(); |
| 1225 | |
| 1226 | mbox->m_in.poll = 0; |
| 1227 | mbox->m_in.ack = 0x77; |
| 1228 | |
| 1229 | WRINDOOR(adapter, adapter->mbox_dma | 0x2); |
| 1230 | |
| 1231 | while(RDINDOOR(adapter) & 0x2) |
| 1232 | cpu_relax(); |
| 1233 | } |
| 1234 | else { |
| 1235 | irq_disable(adapter); |
| 1236 | issue_command(adapter); |
| 1237 | |
| 1238 | while (!((byte = irq_state(adapter)) & INTR_VALID)) |
| 1239 | cpu_relax(); |
| 1240 | |
| 1241 | set_irq_state(adapter, byte); |
| 1242 | irq_enable(adapter); |
| 1243 | irq_ack(adapter); |
| 1244 | } |
| 1245 | |
| 1246 | return mbox->m_in.status; |
| 1247 | |
| 1248 | bug_blocked_mailbox: |
| 1249 | printk(KERN_WARNING "megaraid: Blocked mailbox......!!\n"); |
| 1250 | udelay (1000); |
| 1251 | return -1; |
| 1252 | } |
| 1253 | |
| 1254 | |
| 1255 | /** |
| 1256 | * megaraid_isr_iomapped() |
| 1257 | * @irq - irq |
| 1258 | * @devp - pointer to our soft state |
| 1259 | * @regs - unused |
| 1260 | * |
| 1261 | * Interrupt service routine for io-mapped controllers. |
| 1262 | * Find out if our device is interrupting. If yes, acknowledge the interrupt |
| 1263 | * and service the completed commands. |
| 1264 | */ |
| 1265 | static irqreturn_t |
| 1266 | megaraid_isr_iomapped(int irq, void *devp, struct pt_regs *regs) |
| 1267 | { |
| 1268 | adapter_t *adapter = devp; |
| 1269 | unsigned long flags; |
| 1270 | u8 status; |
| 1271 | u8 nstatus; |
| 1272 | u8 completed[MAX_FIRMWARE_STATUS]; |
| 1273 | u8 byte; |
| 1274 | int handled = 0; |
| 1275 | |
| 1276 | |
| 1277 | /* |
| 1278 | * loop till F/W has more commands for us to complete. |
| 1279 | */ |
| 1280 | spin_lock_irqsave(&adapter->lock, flags); |
| 1281 | |
| 1282 | do { |
| 1283 | /* Check if a valid interrupt is pending */ |
| 1284 | byte = irq_state(adapter); |
| 1285 | if( (byte & VALID_INTR_BYTE) == 0 ) { |
| 1286 | /* |
| 1287 | * No more pending commands |
| 1288 | */ |
| 1289 | goto out_unlock; |
| 1290 | } |
| 1291 | set_irq_state(adapter, byte); |
| 1292 | |
| 1293 | while((nstatus = (volatile u8)adapter->mbox->m_in.numstatus) |
| 1294 | == 0xFF) |
| 1295 | cpu_relax(); |
| 1296 | adapter->mbox->m_in.numstatus = 0xFF; |
| 1297 | |
| 1298 | status = adapter->mbox->m_in.status; |
| 1299 | |
| 1300 | /* |
| 1301 | * decrement the pending queue counter |
| 1302 | */ |
| 1303 | atomic_sub(nstatus, &adapter->pend_cmds); |
| 1304 | |
| 1305 | memcpy(completed, (void *)adapter->mbox->m_in.completed, |
| 1306 | nstatus); |
| 1307 | |
| 1308 | /* Acknowledge interrupt */ |
| 1309 | irq_ack(adapter); |
| 1310 | |
| 1311 | mega_cmd_done(adapter, completed, nstatus, status); |
| 1312 | |
| 1313 | mega_rundoneq(adapter); |
| 1314 | |
| 1315 | handled = 1; |
| 1316 | |
| 1317 | /* Loop through any pending requests */ |
| 1318 | if(atomic_read(&adapter->quiescent) == 0) { |
| 1319 | mega_runpendq(adapter); |
| 1320 | } |
| 1321 | |
| 1322 | } while(1); |
| 1323 | |
| 1324 | out_unlock: |
| 1325 | |
| 1326 | spin_unlock_irqrestore(&adapter->lock, flags); |
| 1327 | |
| 1328 | return IRQ_RETVAL(handled); |
| 1329 | } |
| 1330 | |
| 1331 | |
| 1332 | /** |
| 1333 | * megaraid_isr_memmapped() |
| 1334 | * @irq - irq |
| 1335 | * @devp - pointer to our soft state |
| 1336 | * @regs - unused |
| 1337 | * |
| 1338 | * Interrupt service routine for memory-mapped controllers. |
| 1339 | * Find out if our device is interrupting. If yes, acknowledge the interrupt |
| 1340 | * and service the completed commands. |
| 1341 | */ |
| 1342 | static irqreturn_t |
| 1343 | megaraid_isr_memmapped(int irq, void *devp, struct pt_regs *regs) |
| 1344 | { |
| 1345 | adapter_t *adapter = devp; |
| 1346 | unsigned long flags; |
| 1347 | u8 status; |
| 1348 | u32 dword = 0; |
| 1349 | u8 nstatus; |
| 1350 | u8 completed[MAX_FIRMWARE_STATUS]; |
| 1351 | int handled = 0; |
| 1352 | |
| 1353 | |
| 1354 | /* |
| 1355 | * loop till F/W has more commands for us to complete. |
| 1356 | */ |
| 1357 | spin_lock_irqsave(&adapter->lock, flags); |
| 1358 | |
| 1359 | do { |
| 1360 | /* Check if a valid interrupt is pending */ |
| 1361 | dword = RDOUTDOOR(adapter); |
| 1362 | if(dword != 0x10001234) { |
| 1363 | /* |
| 1364 | * No more pending commands |
| 1365 | */ |
| 1366 | goto out_unlock; |
| 1367 | } |
| 1368 | WROUTDOOR(adapter, 0x10001234); |
| 1369 | |
| 1370 | while((nstatus = (volatile u8)adapter->mbox->m_in.numstatus) |
| 1371 | == 0xFF) { |
| 1372 | cpu_relax(); |
| 1373 | } |
| 1374 | adapter->mbox->m_in.numstatus = 0xFF; |
| 1375 | |
| 1376 | status = adapter->mbox->m_in.status; |
| 1377 | |
| 1378 | /* |
| 1379 | * decrement the pending queue counter |
| 1380 | */ |
| 1381 | atomic_sub(nstatus, &adapter->pend_cmds); |
| 1382 | |
| 1383 | memcpy(completed, (void *)adapter->mbox->m_in.completed, |
| 1384 | nstatus); |
| 1385 | |
| 1386 | /* Acknowledge interrupt */ |
| 1387 | WRINDOOR(adapter, 0x2); |
| 1388 | |
| 1389 | handled = 1; |
| 1390 | |
| 1391 | while( RDINDOOR(adapter) & 0x02 ) cpu_relax(); |
| 1392 | |
| 1393 | mega_cmd_done(adapter, completed, nstatus, status); |
| 1394 | |
| 1395 | mega_rundoneq(adapter); |
| 1396 | |
| 1397 | /* Loop through any pending requests */ |
| 1398 | if(atomic_read(&adapter->quiescent) == 0) { |
| 1399 | mega_runpendq(adapter); |
| 1400 | } |
| 1401 | |
| 1402 | } while(1); |
| 1403 | |
| 1404 | out_unlock: |
| 1405 | |
| 1406 | spin_unlock_irqrestore(&adapter->lock, flags); |
| 1407 | |
| 1408 | return IRQ_RETVAL(handled); |
| 1409 | } |
| 1410 | /** |
| 1411 | * mega_cmd_done() |
| 1412 | * @adapter - pointer to our soft state |
| 1413 | * @completed - array of ids of completed commands |
| 1414 | * @nstatus - number of completed commands |
| 1415 | * @status - status of the last command completed |
| 1416 | * |
| 1417 | * Complete the comamnds and call the scsi mid-layer callback hooks. |
| 1418 | */ |
| 1419 | static void |
| 1420 | mega_cmd_done(adapter_t *adapter, u8 completed[], int nstatus, int status) |
| 1421 | { |
| 1422 | mega_ext_passthru *epthru = NULL; |
| 1423 | struct scatterlist *sgl; |
| 1424 | Scsi_Cmnd *cmd = NULL; |
| 1425 | mega_passthru *pthru = NULL; |
| 1426 | mbox_t *mbox = NULL; |
| 1427 | u8 c; |
| 1428 | scb_t *scb; |
| 1429 | int islogical; |
| 1430 | int cmdid; |
| 1431 | int i; |
| 1432 | |
| 1433 | /* |
| 1434 | * for all the commands completed, call the mid-layer callback routine |
| 1435 | * and free the scb. |
| 1436 | */ |
| 1437 | for( i = 0; i < nstatus; i++ ) { |
| 1438 | |
| 1439 | cmdid = completed[i]; |
| 1440 | |
| 1441 | if( cmdid == CMDID_INT_CMDS ) { /* internal command */ |
| 1442 | scb = &adapter->int_scb; |
| 1443 | cmd = scb->cmd; |
| 1444 | mbox = (mbox_t *)scb->raw_mbox; |
| 1445 | |
| 1446 | /* |
| 1447 | * Internal command interface do not fire the extended |
| 1448 | * passthru or 64-bit passthru |
| 1449 | */ |
| 1450 | pthru = scb->pthru; |
| 1451 | |
| 1452 | } |
| 1453 | else { |
| 1454 | scb = &adapter->scb_list[cmdid]; |
| 1455 | |
| 1456 | /* |
| 1457 | * Make sure f/w has completed a valid command |
| 1458 | */ |
| 1459 | if( !(scb->state & SCB_ISSUED) || scb->cmd == NULL ) { |
| 1460 | printk(KERN_CRIT |
| 1461 | "megaraid: invalid command "); |
| 1462 | printk("Id %d, scb->state:%x, scsi cmd:%p\n", |
| 1463 | cmdid, scb->state, scb->cmd); |
| 1464 | |
| 1465 | continue; |
| 1466 | } |
| 1467 | |
| 1468 | /* |
| 1469 | * Was a abort issued for this command |
| 1470 | */ |
| 1471 | if( scb->state & SCB_ABORT ) { |
| 1472 | |
| 1473 | printk(KERN_WARNING |
| 1474 | "megaraid: aborted cmd %lx[%x] complete.\n", |
| 1475 | scb->cmd->serial_number, scb->idx); |
| 1476 | |
| 1477 | scb->cmd->result = (DID_ABORT << 16); |
| 1478 | |
| 1479 | list_add_tail(SCSI_LIST(scb->cmd), |
| 1480 | &adapter->completed_list); |
| 1481 | |
| 1482 | mega_free_scb(adapter, scb); |
| 1483 | |
| 1484 | continue; |
| 1485 | } |
| 1486 | |
| 1487 | /* |
| 1488 | * Was a reset issued for this command |
| 1489 | */ |
| 1490 | if( scb->state & SCB_RESET ) { |
| 1491 | |
| 1492 | printk(KERN_WARNING |
| 1493 | "megaraid: reset cmd %lx[%x] complete.\n", |
| 1494 | scb->cmd->serial_number, scb->idx); |
| 1495 | |
| 1496 | scb->cmd->result = (DID_RESET << 16); |
| 1497 | |
| 1498 | list_add_tail(SCSI_LIST(scb->cmd), |
| 1499 | &adapter->completed_list); |
| 1500 | |
| 1501 | mega_free_scb (adapter, scb); |
| 1502 | |
| 1503 | continue; |
| 1504 | } |
| 1505 | |
| 1506 | cmd = scb->cmd; |
| 1507 | pthru = scb->pthru; |
| 1508 | epthru = scb->epthru; |
| 1509 | mbox = (mbox_t *)scb->raw_mbox; |
| 1510 | |
| 1511 | #if MEGA_HAVE_STATS |
| 1512 | { |
| 1513 | |
| 1514 | int logdrv = mbox->m_out.logdrv; |
| 1515 | |
| 1516 | islogical = adapter->logdrv_chan[cmd->channel]; |
| 1517 | /* |
| 1518 | * Maintain an error counter for the logical drive. |
| 1519 | * Some application like SNMP agent need such |
| 1520 | * statistics |
| 1521 | */ |
| 1522 | if( status && islogical && (cmd->cmnd[0] == READ_6 || |
| 1523 | cmd->cmnd[0] == READ_10 || |
| 1524 | cmd->cmnd[0] == READ_12)) { |
| 1525 | /* |
| 1526 | * Logical drive number increases by 0x80 when |
| 1527 | * a logical drive is deleted |
| 1528 | */ |
| 1529 | adapter->rd_errors[logdrv%0x80]++; |
| 1530 | } |
| 1531 | |
| 1532 | if( status && islogical && (cmd->cmnd[0] == WRITE_6 || |
| 1533 | cmd->cmnd[0] == WRITE_10 || |
| 1534 | cmd->cmnd[0] == WRITE_12)) { |
| 1535 | /* |
| 1536 | * Logical drive number increases by 0x80 when |
| 1537 | * a logical drive is deleted |
| 1538 | */ |
| 1539 | adapter->wr_errors[logdrv%0x80]++; |
| 1540 | } |
| 1541 | |
| 1542 | } |
| 1543 | #endif |
| 1544 | } |
| 1545 | |
| 1546 | /* |
| 1547 | * Do not return the presence of hard disk on the channel so, |
| 1548 | * inquiry sent, and returned data==hard disk or removable |
| 1549 | * hard disk and not logical, request should return failure! - |
| 1550 | * PJ |
| 1551 | */ |
| 1552 | islogical = adapter->logdrv_chan[cmd->device->channel]; |
| 1553 | if( cmd->cmnd[0] == INQUIRY && !islogical ) { |
| 1554 | |
| 1555 | if( cmd->use_sg ) { |
| 1556 | sgl = (struct scatterlist *) |
| 1557 | cmd->request_buffer; |
| 1558 | |
| 1559 | if( sgl->page ) { |
| 1560 | c = *(unsigned char *) |
| 1561 | page_address((&sgl[0])->page) + |
| 1562 | (&sgl[0])->offset; |
| 1563 | } |
| 1564 | else { |
| 1565 | printk(KERN_WARNING |
| 1566 | "megaraid: invalid sg.\n"); |
| 1567 | c = 0; |
| 1568 | } |
| 1569 | } |
| 1570 | else { |
| 1571 | c = *(u8 *)cmd->request_buffer; |
| 1572 | } |
| 1573 | |
| 1574 | if(IS_RAID_CH(adapter, cmd->device->channel) && |
| 1575 | ((c & 0x1F ) == TYPE_DISK)) { |
| 1576 | status = 0xF0; |
| 1577 | } |
| 1578 | } |
| 1579 | |
| 1580 | /* clear result; otherwise, success returns corrupt value */ |
| 1581 | cmd->result = 0; |
| 1582 | |
| 1583 | /* Convert MegaRAID status to Linux error code */ |
| 1584 | switch (status) { |
| 1585 | case 0x00: /* SUCCESS , i.e. SCSI_STATUS_GOOD */ |
| 1586 | cmd->result |= (DID_OK << 16); |
| 1587 | break; |
| 1588 | |
| 1589 | case 0x02: /* ERROR_ABORTED, i.e. |
| 1590 | SCSI_STATUS_CHECK_CONDITION */ |
| 1591 | |
| 1592 | /* set sense_buffer and result fields */ |
| 1593 | if( mbox->m_out.cmd == MEGA_MBOXCMD_PASSTHRU || |
| 1594 | mbox->m_out.cmd == MEGA_MBOXCMD_PASSTHRU64 ) { |
| 1595 | |
| 1596 | memcpy(cmd->sense_buffer, pthru->reqsensearea, |
| 1597 | 14); |
| 1598 | |
| 1599 | cmd->result = (DRIVER_SENSE << 24) | |
| 1600 | (DID_OK << 16) | |
| 1601 | (CHECK_CONDITION << 1); |
| 1602 | } |
| 1603 | else { |
| 1604 | if (mbox->m_out.cmd == MEGA_MBOXCMD_EXTPTHRU) { |
| 1605 | |
| 1606 | memcpy(cmd->sense_buffer, |
| 1607 | epthru->reqsensearea, 14); |
| 1608 | |
| 1609 | cmd->result = (DRIVER_SENSE << 24) | |
| 1610 | (DID_OK << 16) | |
| 1611 | (CHECK_CONDITION << 1); |
| 1612 | } else { |
| 1613 | cmd->sense_buffer[0] = 0x70; |
| 1614 | cmd->sense_buffer[2] = ABORTED_COMMAND; |
| 1615 | cmd->result |= (CHECK_CONDITION << 1); |
| 1616 | } |
| 1617 | } |
| 1618 | break; |
| 1619 | |
| 1620 | case 0x08: /* ERR_DEST_DRIVE_FAILED, i.e. |
| 1621 | SCSI_STATUS_BUSY */ |
| 1622 | cmd->result |= (DID_BUS_BUSY << 16) | status; |
| 1623 | break; |
| 1624 | |
| 1625 | default: |
| 1626 | #if MEGA_HAVE_CLUSTERING |
| 1627 | /* |
| 1628 | * If TEST_UNIT_READY fails, we know |
| 1629 | * MEGA_RESERVATION_STATUS failed |
| 1630 | */ |
| 1631 | if( cmd->cmnd[0] == TEST_UNIT_READY ) { |
| 1632 | cmd->result |= (DID_ERROR << 16) | |
| 1633 | (RESERVATION_CONFLICT << 1); |
| 1634 | } |
| 1635 | else |
| 1636 | /* |
| 1637 | * Error code returned is 1 if Reserve or Release |
| 1638 | * failed or the input parameter is invalid |
| 1639 | */ |
| 1640 | if( status == 1 && |
| 1641 | (cmd->cmnd[0] == RESERVE || |
| 1642 | cmd->cmnd[0] == RELEASE) ) { |
| 1643 | |
| 1644 | cmd->result |= (DID_ERROR << 16) | |
| 1645 | (RESERVATION_CONFLICT << 1); |
| 1646 | } |
| 1647 | else |
| 1648 | #endif |
| 1649 | cmd->result |= (DID_BAD_TARGET << 16)|status; |
| 1650 | } |
| 1651 | |
| 1652 | /* |
| 1653 | * Only free SCBs for the commands coming down from the |
| 1654 | * mid-layer, not for which were issued internally |
| 1655 | * |
| 1656 | * For internal command, restore the status returned by the |
| 1657 | * firmware so that user can interpret it. |
| 1658 | */ |
| 1659 | if( cmdid == CMDID_INT_CMDS ) { /* internal command */ |
| 1660 | cmd->result = status; |
| 1661 | |
| 1662 | /* |
| 1663 | * Remove the internal command from the pending list |
| 1664 | */ |
| 1665 | list_del_init(&scb->list); |
| 1666 | scb->state = SCB_FREE; |
| 1667 | } |
| 1668 | else { |
| 1669 | mega_free_scb(adapter, scb); |
| 1670 | } |
| 1671 | |
| 1672 | /* Add Scsi_Command to end of completed queue */ |
| 1673 | list_add_tail(SCSI_LIST(cmd), &adapter->completed_list); |
| 1674 | } |
| 1675 | } |
| 1676 | |
| 1677 | |
| 1678 | /* |
| 1679 | * mega_runpendq() |
| 1680 | * |
| 1681 | * Run through the list of completed requests and finish it |
| 1682 | */ |
| 1683 | static void |
| 1684 | mega_rundoneq (adapter_t *adapter) |
| 1685 | { |
| 1686 | Scsi_Cmnd *cmd; |
| 1687 | struct list_head *pos; |
| 1688 | |
| 1689 | list_for_each(pos, &adapter->completed_list) { |
| 1690 | |
Christoph Hellwig | 0a04137 | 2005-10-31 18:31:56 +0100 | [diff] [blame] | 1691 | struct scsi_pointer* spos = (struct scsi_pointer *)pos; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1692 | |
| 1693 | cmd = list_entry(spos, Scsi_Cmnd, SCp); |
| 1694 | cmd->scsi_done(cmd); |
| 1695 | } |
| 1696 | |
| 1697 | INIT_LIST_HEAD(&adapter->completed_list); |
| 1698 | } |
| 1699 | |
| 1700 | |
| 1701 | /* |
| 1702 | * Free a SCB structure |
| 1703 | * Note: We assume the scsi commands associated with this scb is not free yet. |
| 1704 | */ |
| 1705 | static void |
| 1706 | mega_free_scb(adapter_t *adapter, scb_t *scb) |
| 1707 | { |
James Bottomley | 51c928c | 2005-10-01 09:38:05 -0500 | [diff] [blame] | 1708 | unsigned long length; |
| 1709 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1710 | switch( scb->dma_type ) { |
| 1711 | |
| 1712 | case MEGA_DMA_TYPE_NONE: |
| 1713 | break; |
| 1714 | |
| 1715 | case MEGA_BULK_DATA: |
James Bottomley | 51c928c | 2005-10-01 09:38:05 -0500 | [diff] [blame] | 1716 | if (scb->cmd->use_sg == 0) |
| 1717 | length = scb->cmd->request_bufflen; |
| 1718 | else { |
| 1719 | struct scatterlist *sgl = |
| 1720 | (struct scatterlist *)scb->cmd->request_buffer; |
| 1721 | length = sgl->length; |
| 1722 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1723 | pci_unmap_page(adapter->dev, scb->dma_h_bulkdata, |
James Bottomley | 51c928c | 2005-10-01 09:38:05 -0500 | [diff] [blame] | 1724 | length, scb->dma_direction); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1725 | break; |
| 1726 | |
| 1727 | case MEGA_SGLIST: |
| 1728 | pci_unmap_sg(adapter->dev, scb->cmd->request_buffer, |
| 1729 | scb->cmd->use_sg, scb->dma_direction); |
| 1730 | break; |
| 1731 | |
| 1732 | default: |
| 1733 | break; |
| 1734 | } |
| 1735 | |
| 1736 | /* |
| 1737 | * Remove from the pending list |
| 1738 | */ |
| 1739 | list_del_init(&scb->list); |
| 1740 | |
| 1741 | /* Link the scb back into free list */ |
| 1742 | scb->state = SCB_FREE; |
| 1743 | scb->cmd = NULL; |
| 1744 | |
| 1745 | list_add(&scb->list, &adapter->free_list); |
| 1746 | } |
| 1747 | |
| 1748 | |
| 1749 | static int |
| 1750 | __mega_busywait_mbox (adapter_t *adapter) |
| 1751 | { |
| 1752 | volatile mbox_t *mbox = adapter->mbox; |
| 1753 | long counter; |
| 1754 | |
| 1755 | for (counter = 0; counter < 10000; counter++) { |
| 1756 | if (!mbox->m_in.busy) |
| 1757 | return 0; |
| 1758 | udelay(100); yield(); |
| 1759 | } |
| 1760 | return -1; /* give up after 1 second */ |
| 1761 | } |
| 1762 | |
| 1763 | /* |
| 1764 | * Copies data to SGLIST |
| 1765 | * Note: For 64 bit cards, we need a minimum of one SG element for read/write |
| 1766 | */ |
| 1767 | static int |
| 1768 | mega_build_sglist(adapter_t *adapter, scb_t *scb, u32 *buf, u32 *len) |
| 1769 | { |
| 1770 | struct scatterlist *sgl; |
| 1771 | struct page *page; |
| 1772 | unsigned long offset; |
James Bottomley | 51c928c | 2005-10-01 09:38:05 -0500 | [diff] [blame] | 1773 | unsigned int length; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1774 | Scsi_Cmnd *cmd; |
| 1775 | int sgcnt; |
| 1776 | int idx; |
| 1777 | |
| 1778 | cmd = scb->cmd; |
| 1779 | |
| 1780 | /* Scatter-gather not used */ |
James Bottomley | 51c928c | 2005-10-01 09:38:05 -0500 | [diff] [blame] | 1781 | if( cmd->use_sg == 0 || (cmd->use_sg == 1 && |
| 1782 | !adapter->has_64bit_addr)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1783 | |
James Bottomley | 51c928c | 2005-10-01 09:38:05 -0500 | [diff] [blame] | 1784 | if (cmd->use_sg == 0) { |
| 1785 | page = virt_to_page(cmd->request_buffer); |
| 1786 | offset = offset_in_page(cmd->request_buffer); |
| 1787 | length = cmd->request_bufflen; |
| 1788 | } else { |
| 1789 | sgl = (struct scatterlist *)cmd->request_buffer; |
| 1790 | page = sgl->page; |
| 1791 | offset = sgl->offset; |
| 1792 | length = sgl->length; |
| 1793 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1794 | |
| 1795 | scb->dma_h_bulkdata = pci_map_page(adapter->dev, |
| 1796 | page, offset, |
James Bottomley | 51c928c | 2005-10-01 09:38:05 -0500 | [diff] [blame] | 1797 | length, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1798 | scb->dma_direction); |
| 1799 | scb->dma_type = MEGA_BULK_DATA; |
| 1800 | |
| 1801 | /* |
| 1802 | * We need to handle special 64-bit commands that need a |
| 1803 | * minimum of 1 SG |
| 1804 | */ |
| 1805 | if( adapter->has_64bit_addr ) { |
| 1806 | scb->sgl64[0].address = scb->dma_h_bulkdata; |
James Bottomley | 51c928c | 2005-10-01 09:38:05 -0500 | [diff] [blame] | 1807 | scb->sgl64[0].length = length; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1808 | *buf = (u32)scb->sgl_dma_addr; |
James Bottomley | 51c928c | 2005-10-01 09:38:05 -0500 | [diff] [blame] | 1809 | *len = (u32)length; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1810 | return 1; |
| 1811 | } |
| 1812 | else { |
| 1813 | *buf = (u32)scb->dma_h_bulkdata; |
James Bottomley | 51c928c | 2005-10-01 09:38:05 -0500 | [diff] [blame] | 1814 | *len = (u32)length; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1815 | } |
| 1816 | return 0; |
| 1817 | } |
| 1818 | |
| 1819 | sgl = (struct scatterlist *)cmd->request_buffer; |
| 1820 | |
| 1821 | /* |
| 1822 | * Copy Scatter-Gather list info into controller structure. |
| 1823 | * |
| 1824 | * The number of sg elements returned must not exceed our limit |
| 1825 | */ |
| 1826 | sgcnt = pci_map_sg(adapter->dev, sgl, cmd->use_sg, |
| 1827 | scb->dma_direction); |
| 1828 | |
| 1829 | scb->dma_type = MEGA_SGLIST; |
| 1830 | |
Eric Sesterhenn | 125e187 | 2006-06-23 02:06:06 -0700 | [diff] [blame] | 1831 | BUG_ON(sgcnt > adapter->sglen); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1832 | |
James Bottomley | 51c928c | 2005-10-01 09:38:05 -0500 | [diff] [blame] | 1833 | *len = 0; |
| 1834 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1835 | for( idx = 0; idx < sgcnt; idx++, sgl++ ) { |
| 1836 | |
| 1837 | if( adapter->has_64bit_addr ) { |
| 1838 | scb->sgl64[idx].address = sg_dma_address(sgl); |
James Bottomley | 51c928c | 2005-10-01 09:38:05 -0500 | [diff] [blame] | 1839 | *len += scb->sgl64[idx].length = sg_dma_len(sgl); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1840 | } |
| 1841 | else { |
| 1842 | scb->sgl[idx].address = sg_dma_address(sgl); |
James Bottomley | 51c928c | 2005-10-01 09:38:05 -0500 | [diff] [blame] | 1843 | *len += scb->sgl[idx].length = sg_dma_len(sgl); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1844 | } |
| 1845 | } |
| 1846 | |
| 1847 | /* Reset pointer and length fields */ |
| 1848 | *buf = scb->sgl_dma_addr; |
| 1849 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1850 | /* Return count of SG requests */ |
| 1851 | return sgcnt; |
| 1852 | } |
| 1853 | |
| 1854 | |
| 1855 | /* |
| 1856 | * mega_8_to_40ld() |
| 1857 | * |
| 1858 | * takes all info in AdapterInquiry structure and puts it into ProductInfo and |
| 1859 | * Enquiry3 structures for later use |
| 1860 | */ |
| 1861 | static void |
| 1862 | mega_8_to_40ld(mraid_inquiry *inquiry, mega_inquiry3 *enquiry3, |
| 1863 | mega_product_info *product_info) |
| 1864 | { |
| 1865 | int i; |
| 1866 | |
| 1867 | product_info->max_commands = inquiry->adapter_info.max_commands; |
| 1868 | enquiry3->rebuild_rate = inquiry->adapter_info.rebuild_rate; |
| 1869 | product_info->nchannels = inquiry->adapter_info.nchannels; |
| 1870 | |
| 1871 | for (i = 0; i < 4; i++) { |
| 1872 | product_info->fw_version[i] = |
| 1873 | inquiry->adapter_info.fw_version[i]; |
| 1874 | |
| 1875 | product_info->bios_version[i] = |
| 1876 | inquiry->adapter_info.bios_version[i]; |
| 1877 | } |
| 1878 | enquiry3->cache_flush_interval = |
| 1879 | inquiry->adapter_info.cache_flush_interval; |
| 1880 | |
| 1881 | product_info->dram_size = inquiry->adapter_info.dram_size; |
| 1882 | |
| 1883 | enquiry3->num_ldrv = inquiry->logdrv_info.num_ldrv; |
| 1884 | |
| 1885 | for (i = 0; i < MAX_LOGICAL_DRIVES_8LD; i++) { |
| 1886 | enquiry3->ldrv_size[i] = inquiry->logdrv_info.ldrv_size[i]; |
| 1887 | enquiry3->ldrv_prop[i] = inquiry->logdrv_info.ldrv_prop[i]; |
| 1888 | enquiry3->ldrv_state[i] = inquiry->logdrv_info.ldrv_state[i]; |
| 1889 | } |
| 1890 | |
| 1891 | for (i = 0; i < (MAX_PHYSICAL_DRIVES); i++) |
| 1892 | enquiry3->pdrv_state[i] = inquiry->pdrv_info.pdrv_state[i]; |
| 1893 | } |
| 1894 | |
| 1895 | static inline void |
| 1896 | mega_free_sgl(adapter_t *adapter) |
| 1897 | { |
| 1898 | scb_t *scb; |
| 1899 | int i; |
| 1900 | |
| 1901 | for(i = 0; i < adapter->max_cmds; i++) { |
| 1902 | |
| 1903 | scb = &adapter->scb_list[i]; |
| 1904 | |
| 1905 | if( scb->sgl64 ) { |
| 1906 | pci_free_consistent(adapter->dev, |
| 1907 | sizeof(mega_sgl64) * adapter->sglen, |
| 1908 | scb->sgl64, |
| 1909 | scb->sgl_dma_addr); |
| 1910 | |
| 1911 | scb->sgl64 = NULL; |
| 1912 | } |
| 1913 | |
| 1914 | if( scb->pthru ) { |
| 1915 | pci_free_consistent(adapter->dev, sizeof(mega_passthru), |
| 1916 | scb->pthru, scb->pthru_dma_addr); |
| 1917 | |
| 1918 | scb->pthru = NULL; |
| 1919 | } |
| 1920 | |
| 1921 | if( scb->epthru ) { |
| 1922 | pci_free_consistent(adapter->dev, |
| 1923 | sizeof(mega_ext_passthru), |
| 1924 | scb->epthru, scb->epthru_dma_addr); |
| 1925 | |
| 1926 | scb->epthru = NULL; |
| 1927 | } |
| 1928 | |
| 1929 | } |
| 1930 | } |
| 1931 | |
| 1932 | |
| 1933 | /* |
| 1934 | * Get information about the card/driver |
| 1935 | */ |
| 1936 | const char * |
| 1937 | megaraid_info(struct Scsi_Host *host) |
| 1938 | { |
| 1939 | static char buffer[512]; |
| 1940 | adapter_t *adapter; |
| 1941 | |
| 1942 | adapter = (adapter_t *)host->hostdata; |
| 1943 | |
| 1944 | sprintf (buffer, |
| 1945 | "LSI Logic MegaRAID %s %d commands %d targs %d chans %d luns", |
| 1946 | adapter->fw_version, adapter->product_info.max_commands, |
| 1947 | adapter->host->max_id, adapter->host->max_channel, |
| 1948 | adapter->host->max_lun); |
| 1949 | return buffer; |
| 1950 | } |
| 1951 | |
| 1952 | /* |
| 1953 | * Abort a previous SCSI request. Only commands on the pending list can be |
| 1954 | * aborted. All the commands issued to the F/W must complete. |
| 1955 | */ |
| 1956 | static int |
| 1957 | megaraid_abort(Scsi_Cmnd *cmd) |
| 1958 | { |
| 1959 | adapter_t *adapter; |
| 1960 | int rval; |
| 1961 | |
| 1962 | adapter = (adapter_t *)cmd->device->host->hostdata; |
| 1963 | |
| 1964 | rval = megaraid_abort_and_reset(adapter, cmd, SCB_ABORT); |
| 1965 | |
| 1966 | /* |
| 1967 | * This is required here to complete any completed requests |
| 1968 | * to be communicated over to the mid layer. |
| 1969 | */ |
| 1970 | mega_rundoneq(adapter); |
| 1971 | |
| 1972 | return rval; |
| 1973 | } |
| 1974 | |
| 1975 | |
| 1976 | static int |
James Bottomley | fa4c496 | 2005-06-26 08:45:39 -0500 | [diff] [blame] | 1977 | megaraid_reset(struct scsi_cmnd *cmd) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1978 | { |
| 1979 | adapter_t *adapter; |
| 1980 | megacmd_t mc; |
| 1981 | int rval; |
| 1982 | |
| 1983 | adapter = (adapter_t *)cmd->device->host->hostdata; |
| 1984 | |
| 1985 | #if MEGA_HAVE_CLUSTERING |
| 1986 | mc.cmd = MEGA_CLUSTER_CMD; |
| 1987 | mc.opcode = MEGA_RESET_RESERVATIONS; |
| 1988 | |
Christoph Hellwig | cb0258a | 2005-10-31 20:12:07 +0100 | [diff] [blame] | 1989 | if( mega_internal_command(adapter, &mc, NULL) != 0 ) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1990 | printk(KERN_WARNING |
| 1991 | "megaraid: reservation reset failed.\n"); |
| 1992 | } |
| 1993 | else { |
| 1994 | printk(KERN_INFO "megaraid: reservation reset.\n"); |
| 1995 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1996 | #endif |
| 1997 | |
James Bottomley | fa4c496 | 2005-06-26 08:45:39 -0500 | [diff] [blame] | 1998 | spin_lock_irq(&adapter->lock); |
| 1999 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2000 | rval = megaraid_abort_and_reset(adapter, cmd, SCB_RESET); |
| 2001 | |
| 2002 | /* |
| 2003 | * This is required here to complete any completed requests |
| 2004 | * to be communicated over to the mid layer. |
| 2005 | */ |
| 2006 | mega_rundoneq(adapter); |
James Bottomley | fa4c496 | 2005-06-26 08:45:39 -0500 | [diff] [blame] | 2007 | spin_unlock_irq(&adapter->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2008 | |
| 2009 | return rval; |
| 2010 | } |
| 2011 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2012 | /** |
| 2013 | * megaraid_abort_and_reset() |
| 2014 | * @adapter - megaraid soft state |
| 2015 | * @cmd - scsi command to be aborted or reset |
| 2016 | * @aor - abort or reset flag |
| 2017 | * |
| 2018 | * Try to locate the scsi command in the pending queue. If found and is not |
| 2019 | * issued to the controller, abort/reset it. Otherwise return failure |
| 2020 | */ |
| 2021 | static int |
| 2022 | megaraid_abort_and_reset(adapter_t *adapter, Scsi_Cmnd *cmd, int aor) |
| 2023 | { |
| 2024 | struct list_head *pos, *next; |
| 2025 | scb_t *scb; |
| 2026 | |
| 2027 | printk(KERN_WARNING "megaraid: %s-%lx cmd=%x <c=%d t=%d l=%d>\n", |
| 2028 | (aor == SCB_ABORT)? "ABORTING":"RESET", cmd->serial_number, |
| 2029 | cmd->cmnd[0], cmd->device->channel, |
| 2030 | cmd->device->id, cmd->device->lun); |
| 2031 | |
| 2032 | if(list_empty(&adapter->pending_list)) |
| 2033 | return FALSE; |
| 2034 | |
| 2035 | list_for_each_safe(pos, next, &adapter->pending_list) { |
| 2036 | |
| 2037 | scb = list_entry(pos, scb_t, list); |
| 2038 | |
| 2039 | if (scb->cmd == cmd) { /* Found command */ |
| 2040 | |
| 2041 | scb->state |= aor; |
| 2042 | |
| 2043 | /* |
| 2044 | * Check if this command has firmare owenership. If |
| 2045 | * yes, we cannot reset this command. Whenever, f/w |
| 2046 | * completes this command, we will return appropriate |
| 2047 | * status from ISR. |
| 2048 | */ |
| 2049 | if( scb->state & SCB_ISSUED ) { |
| 2050 | |
| 2051 | printk(KERN_WARNING |
| 2052 | "megaraid: %s-%lx[%x], fw owner.\n", |
| 2053 | (aor==SCB_ABORT) ? "ABORTING":"RESET", |
| 2054 | cmd->serial_number, scb->idx); |
| 2055 | |
| 2056 | return FALSE; |
| 2057 | } |
| 2058 | else { |
| 2059 | |
| 2060 | /* |
| 2061 | * Not yet issued! Remove from the pending |
| 2062 | * list |
| 2063 | */ |
| 2064 | printk(KERN_WARNING |
| 2065 | "megaraid: %s-%lx[%x], driver owner.\n", |
| 2066 | (aor==SCB_ABORT) ? "ABORTING":"RESET", |
| 2067 | cmd->serial_number, scb->idx); |
| 2068 | |
| 2069 | mega_free_scb(adapter, scb); |
| 2070 | |
| 2071 | if( aor == SCB_ABORT ) { |
| 2072 | cmd->result = (DID_ABORT << 16); |
| 2073 | } |
| 2074 | else { |
| 2075 | cmd->result = (DID_RESET << 16); |
| 2076 | } |
| 2077 | |
| 2078 | list_add_tail(SCSI_LIST(cmd), |
| 2079 | &adapter->completed_list); |
| 2080 | |
| 2081 | return TRUE; |
| 2082 | } |
| 2083 | } |
| 2084 | } |
| 2085 | |
| 2086 | return FALSE; |
| 2087 | } |
| 2088 | |
| 2089 | static inline int |
| 2090 | make_local_pdev(adapter_t *adapter, struct pci_dev **pdev) |
| 2091 | { |
| 2092 | *pdev = kmalloc(sizeof(struct pci_dev), GFP_KERNEL); |
| 2093 | |
| 2094 | if( *pdev == NULL ) return -1; |
| 2095 | |
| 2096 | memcpy(*pdev, adapter->dev, sizeof(struct pci_dev)); |
| 2097 | |
Matthias Gehre | 910638a | 2006-03-28 01:56:48 -0800 | [diff] [blame] | 2098 | if( pci_set_dma_mask(*pdev, DMA_32BIT_MASK) != 0 ) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2099 | kfree(*pdev); |
| 2100 | return -1; |
| 2101 | } |
| 2102 | |
| 2103 | return 0; |
| 2104 | } |
| 2105 | |
| 2106 | static inline void |
| 2107 | free_local_pdev(struct pci_dev *pdev) |
| 2108 | { |
| 2109 | kfree(pdev); |
| 2110 | } |
| 2111 | |
| 2112 | /** |
| 2113 | * mega_allocate_inquiry() |
| 2114 | * @dma_handle - handle returned for dma address |
| 2115 | * @pdev - handle to pci device |
| 2116 | * |
| 2117 | * allocates memory for inquiry structure |
| 2118 | */ |
| 2119 | static inline void * |
| 2120 | mega_allocate_inquiry(dma_addr_t *dma_handle, struct pci_dev *pdev) |
| 2121 | { |
| 2122 | return pci_alloc_consistent(pdev, sizeof(mega_inquiry3), dma_handle); |
| 2123 | } |
| 2124 | |
| 2125 | |
| 2126 | static inline void |
| 2127 | mega_free_inquiry(void *inquiry, dma_addr_t dma_handle, struct pci_dev *pdev) |
| 2128 | { |
| 2129 | pci_free_consistent(pdev, sizeof(mega_inquiry3), inquiry, dma_handle); |
| 2130 | } |
| 2131 | |
| 2132 | |
| 2133 | #ifdef CONFIG_PROC_FS |
| 2134 | /* Following code handles /proc fs */ |
| 2135 | |
| 2136 | #define CREATE_READ_PROC(string, func) create_proc_read_entry(string, \ |
| 2137 | S_IRUSR | S_IFREG, \ |
| 2138 | controller_proc_dir_entry, \ |
| 2139 | func, adapter) |
| 2140 | |
| 2141 | /** |
| 2142 | * mega_create_proc_entry() |
| 2143 | * @index - index in soft state array |
| 2144 | * @parent - parent node for this /proc entry |
| 2145 | * |
| 2146 | * Creates /proc entries for our controllers. |
| 2147 | */ |
| 2148 | static void |
| 2149 | mega_create_proc_entry(int index, struct proc_dir_entry *parent) |
| 2150 | { |
| 2151 | struct proc_dir_entry *controller_proc_dir_entry = NULL; |
| 2152 | u8 string[64] = { 0 }; |
| 2153 | adapter_t *adapter = hba_soft_state[index]; |
| 2154 | |
| 2155 | sprintf(string, "hba%d", adapter->host->host_no); |
| 2156 | |
| 2157 | controller_proc_dir_entry = |
| 2158 | adapter->controller_proc_dir_entry = proc_mkdir(string, parent); |
| 2159 | |
| 2160 | if(!controller_proc_dir_entry) { |
| 2161 | printk(KERN_WARNING "\nmegaraid: proc_mkdir failed\n"); |
| 2162 | return; |
| 2163 | } |
| 2164 | adapter->proc_read = CREATE_READ_PROC("config", proc_read_config); |
| 2165 | adapter->proc_stat = CREATE_READ_PROC("stat", proc_read_stat); |
| 2166 | adapter->proc_mbox = CREATE_READ_PROC("mailbox", proc_read_mbox); |
| 2167 | #if MEGA_HAVE_ENH_PROC |
| 2168 | adapter->proc_rr = CREATE_READ_PROC("rebuild-rate", proc_rebuild_rate); |
| 2169 | adapter->proc_battery = CREATE_READ_PROC("battery-status", |
| 2170 | proc_battery); |
| 2171 | |
| 2172 | /* |
| 2173 | * Display each physical drive on its channel |
| 2174 | */ |
| 2175 | adapter->proc_pdrvstat[0] = CREATE_READ_PROC("diskdrives-ch0", |
| 2176 | proc_pdrv_ch0); |
| 2177 | adapter->proc_pdrvstat[1] = CREATE_READ_PROC("diskdrives-ch1", |
| 2178 | proc_pdrv_ch1); |
| 2179 | adapter->proc_pdrvstat[2] = CREATE_READ_PROC("diskdrives-ch2", |
| 2180 | proc_pdrv_ch2); |
| 2181 | adapter->proc_pdrvstat[3] = CREATE_READ_PROC("diskdrives-ch3", |
| 2182 | proc_pdrv_ch3); |
| 2183 | |
| 2184 | /* |
| 2185 | * Display a set of up to 10 logical drive through each of following |
| 2186 | * /proc entries |
| 2187 | */ |
| 2188 | adapter->proc_rdrvstat[0] = CREATE_READ_PROC("raiddrives-0-9", |
| 2189 | proc_rdrv_10); |
| 2190 | adapter->proc_rdrvstat[1] = CREATE_READ_PROC("raiddrives-10-19", |
| 2191 | proc_rdrv_20); |
| 2192 | adapter->proc_rdrvstat[2] = CREATE_READ_PROC("raiddrives-20-29", |
| 2193 | proc_rdrv_30); |
| 2194 | adapter->proc_rdrvstat[3] = CREATE_READ_PROC("raiddrives-30-39", |
| 2195 | proc_rdrv_40); |
| 2196 | #endif |
| 2197 | } |
| 2198 | |
| 2199 | |
| 2200 | /** |
| 2201 | * proc_read_config() |
| 2202 | * @page - buffer to write the data in |
| 2203 | * @start - where the actual data has been written in page |
| 2204 | * @offset - same meaning as the read system call |
| 2205 | * @count - same meaning as the read system call |
| 2206 | * @eof - set if no more data needs to be returned |
| 2207 | * @data - pointer to our soft state |
| 2208 | * |
| 2209 | * Display configuration information about the controller. |
| 2210 | */ |
| 2211 | static int |
| 2212 | proc_read_config(char *page, char **start, off_t offset, int count, int *eof, |
| 2213 | void *data) |
| 2214 | { |
| 2215 | |
| 2216 | adapter_t *adapter = (adapter_t *)data; |
| 2217 | int len = 0; |
| 2218 | |
| 2219 | len += sprintf(page+len, "%s", MEGARAID_VERSION); |
| 2220 | |
| 2221 | if(adapter->product_info.product_name[0]) |
| 2222 | len += sprintf(page+len, "%s\n", |
| 2223 | adapter->product_info.product_name); |
| 2224 | |
| 2225 | len += sprintf(page+len, "Controller Type: "); |
| 2226 | |
| 2227 | if( adapter->flag & BOARD_MEMMAP ) { |
| 2228 | len += sprintf(page+len, |
| 2229 | "438/466/467/471/493/518/520/531/532\n"); |
| 2230 | } |
| 2231 | else { |
| 2232 | len += sprintf(page+len, |
| 2233 | "418/428/434\n"); |
| 2234 | } |
| 2235 | |
| 2236 | if(adapter->flag & BOARD_40LD) { |
| 2237 | len += sprintf(page+len, |
| 2238 | "Controller Supports 40 Logical Drives\n"); |
| 2239 | } |
| 2240 | |
| 2241 | if(adapter->flag & BOARD_64BIT) { |
| 2242 | len += sprintf(page+len, |
| 2243 | "Controller capable of 64-bit memory addressing\n"); |
| 2244 | } |
| 2245 | if( adapter->has_64bit_addr ) { |
| 2246 | len += sprintf(page+len, |
| 2247 | "Controller using 64-bit memory addressing\n"); |
| 2248 | } |
| 2249 | else { |
| 2250 | len += sprintf(page+len, |
| 2251 | "Controller is not using 64-bit memory addressing\n"); |
| 2252 | } |
| 2253 | |
| 2254 | len += sprintf(page+len, "Base = %08lx, Irq = %d, ", adapter->base, |
| 2255 | adapter->host->irq); |
| 2256 | |
| 2257 | len += sprintf(page+len, "Logical Drives = %d, Channels = %d\n", |
| 2258 | adapter->numldrv, adapter->product_info.nchannels); |
| 2259 | |
| 2260 | len += sprintf(page+len, "Version =%s:%s, DRAM = %dMb\n", |
| 2261 | adapter->fw_version, adapter->bios_version, |
| 2262 | adapter->product_info.dram_size); |
| 2263 | |
| 2264 | len += sprintf(page+len, |
| 2265 | "Controller Queue Depth = %d, Driver Queue Depth = %d\n", |
| 2266 | adapter->product_info.max_commands, adapter->max_cmds); |
| 2267 | |
| 2268 | len += sprintf(page+len, "support_ext_cdb = %d\n", |
| 2269 | adapter->support_ext_cdb); |
| 2270 | len += sprintf(page+len, "support_random_del = %d\n", |
| 2271 | adapter->support_random_del); |
| 2272 | len += sprintf(page+len, "boot_ldrv_enabled = %d\n", |
| 2273 | adapter->boot_ldrv_enabled); |
| 2274 | len += sprintf(page+len, "boot_ldrv = %d\n", |
| 2275 | adapter->boot_ldrv); |
| 2276 | len += sprintf(page+len, "boot_pdrv_enabled = %d\n", |
| 2277 | adapter->boot_pdrv_enabled); |
| 2278 | len += sprintf(page+len, "boot_pdrv_ch = %d\n", |
| 2279 | adapter->boot_pdrv_ch); |
| 2280 | len += sprintf(page+len, "boot_pdrv_tgt = %d\n", |
| 2281 | adapter->boot_pdrv_tgt); |
| 2282 | len += sprintf(page+len, "quiescent = %d\n", |
| 2283 | atomic_read(&adapter->quiescent)); |
| 2284 | len += sprintf(page+len, "has_cluster = %d\n", |
| 2285 | adapter->has_cluster); |
| 2286 | |
| 2287 | len += sprintf(page+len, "\nModule Parameters:\n"); |
| 2288 | len += sprintf(page+len, "max_cmd_per_lun = %d\n", |
| 2289 | max_cmd_per_lun); |
| 2290 | len += sprintf(page+len, "max_sectors_per_io = %d\n", |
| 2291 | max_sectors_per_io); |
| 2292 | |
| 2293 | *eof = 1; |
| 2294 | |
| 2295 | return len; |
| 2296 | } |
| 2297 | |
| 2298 | |
| 2299 | |
| 2300 | /** |
| 2301 | * proc_read_stat() |
| 2302 | * @page - buffer to write the data in |
| 2303 | * @start - where the actual data has been written in page |
| 2304 | * @offset - same meaning as the read system call |
| 2305 | * @count - same meaning as the read system call |
| 2306 | * @eof - set if no more data needs to be returned |
| 2307 | * @data - pointer to our soft state |
| 2308 | * |
| 2309 | * Diaplay statistical information about the I/O activity. |
| 2310 | */ |
| 2311 | static int |
| 2312 | proc_read_stat(char *page, char **start, off_t offset, int count, int *eof, |
| 2313 | void *data) |
| 2314 | { |
| 2315 | adapter_t *adapter; |
| 2316 | int len; |
| 2317 | int i; |
| 2318 | |
| 2319 | i = 0; /* avoid compilation warnings */ |
| 2320 | len = 0; |
| 2321 | adapter = (adapter_t *)data; |
| 2322 | |
| 2323 | len = sprintf(page, "Statistical Information for this controller\n"); |
| 2324 | len += sprintf(page+len, "pend_cmds = %d\n", |
| 2325 | atomic_read(&adapter->pend_cmds)); |
| 2326 | #if MEGA_HAVE_STATS |
| 2327 | for(i = 0; i < adapter->numldrv; i++) { |
| 2328 | len += sprintf(page+len, "Logical Drive %d:\n", i); |
| 2329 | |
| 2330 | len += sprintf(page+len, |
| 2331 | "\tReads Issued = %lu, Writes Issued = %lu\n", |
| 2332 | adapter->nreads[i], adapter->nwrites[i]); |
| 2333 | |
| 2334 | len += sprintf(page+len, |
| 2335 | "\tSectors Read = %lu, Sectors Written = %lu\n", |
| 2336 | adapter->nreadblocks[i], adapter->nwriteblocks[i]); |
| 2337 | |
| 2338 | len += sprintf(page+len, |
| 2339 | "\tRead errors = %lu, Write errors = %lu\n\n", |
| 2340 | adapter->rd_errors[i], adapter->wr_errors[i]); |
| 2341 | } |
| 2342 | #else |
| 2343 | len += sprintf(page+len, |
| 2344 | "IO and error counters not compiled in driver.\n"); |
| 2345 | #endif |
| 2346 | |
| 2347 | *eof = 1; |
| 2348 | |
| 2349 | return len; |
| 2350 | } |
| 2351 | |
| 2352 | |
| 2353 | /** |
| 2354 | * proc_read_mbox() |
| 2355 | * @page - buffer to write the data in |
| 2356 | * @start - where the actual data has been written in page |
| 2357 | * @offset - same meaning as the read system call |
| 2358 | * @count - same meaning as the read system call |
| 2359 | * @eof - set if no more data needs to be returned |
| 2360 | * @data - pointer to our soft state |
| 2361 | * |
| 2362 | * Display mailbox information for the last command issued. This information |
| 2363 | * is good for debugging. |
| 2364 | */ |
| 2365 | static int |
| 2366 | proc_read_mbox(char *page, char **start, off_t offset, int count, int *eof, |
| 2367 | void *data) |
| 2368 | { |
| 2369 | |
| 2370 | adapter_t *adapter = (adapter_t *)data; |
| 2371 | volatile mbox_t *mbox = adapter->mbox; |
| 2372 | int len = 0; |
| 2373 | |
| 2374 | len = sprintf(page, "Contents of Mail Box Structure\n"); |
| 2375 | len += sprintf(page+len, " Fw Command = 0x%02x\n", |
| 2376 | mbox->m_out.cmd); |
| 2377 | len += sprintf(page+len, " Cmd Sequence = 0x%02x\n", |
| 2378 | mbox->m_out.cmdid); |
| 2379 | len += sprintf(page+len, " No of Sectors= %04d\n", |
| 2380 | mbox->m_out.numsectors); |
| 2381 | len += sprintf(page+len, " LBA = 0x%02x\n", |
| 2382 | mbox->m_out.lba); |
| 2383 | len += sprintf(page+len, " DTA = 0x%08x\n", |
| 2384 | mbox->m_out.xferaddr); |
| 2385 | len += sprintf(page+len, " Logical Drive= 0x%02x\n", |
| 2386 | mbox->m_out.logdrv); |
| 2387 | len += sprintf(page+len, " No of SG Elmt= 0x%02x\n", |
| 2388 | mbox->m_out.numsgelements); |
| 2389 | len += sprintf(page+len, " Busy = %01x\n", |
| 2390 | mbox->m_in.busy); |
| 2391 | len += sprintf(page+len, " Status = 0x%02x\n", |
| 2392 | mbox->m_in.status); |
| 2393 | |
| 2394 | *eof = 1; |
| 2395 | |
| 2396 | return len; |
| 2397 | } |
| 2398 | |
| 2399 | |
| 2400 | /** |
| 2401 | * proc_rebuild_rate() |
| 2402 | * @page - buffer to write the data in |
| 2403 | * @start - where the actual data has been written in page |
| 2404 | * @offset - same meaning as the read system call |
| 2405 | * @count - same meaning as the read system call |
| 2406 | * @eof - set if no more data needs to be returned |
| 2407 | * @data - pointer to our soft state |
| 2408 | * |
| 2409 | * Display current rebuild rate |
| 2410 | */ |
| 2411 | static int |
| 2412 | proc_rebuild_rate(char *page, char **start, off_t offset, int count, int *eof, |
| 2413 | void *data) |
| 2414 | { |
| 2415 | adapter_t *adapter = (adapter_t *)data; |
| 2416 | dma_addr_t dma_handle; |
| 2417 | caddr_t inquiry; |
| 2418 | struct pci_dev *pdev; |
| 2419 | int len = 0; |
| 2420 | |
| 2421 | if( make_local_pdev(adapter, &pdev) != 0 ) { |
| 2422 | *eof = 1; |
| 2423 | return len; |
| 2424 | } |
| 2425 | |
| 2426 | if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL ) { |
| 2427 | free_local_pdev(pdev); |
| 2428 | *eof = 1; |
| 2429 | return len; |
| 2430 | } |
| 2431 | |
| 2432 | if( mega_adapinq(adapter, dma_handle) != 0 ) { |
| 2433 | |
| 2434 | len = sprintf(page, "Adapter inquiry failed.\n"); |
| 2435 | |
| 2436 | printk(KERN_WARNING "megaraid: inquiry failed.\n"); |
| 2437 | |
| 2438 | mega_free_inquiry(inquiry, dma_handle, pdev); |
| 2439 | |
| 2440 | free_local_pdev(pdev); |
| 2441 | |
| 2442 | *eof = 1; |
| 2443 | |
| 2444 | return len; |
| 2445 | } |
| 2446 | |
| 2447 | if( adapter->flag & BOARD_40LD ) { |
| 2448 | len = sprintf(page, "Rebuild Rate: [%d%%]\n", |
| 2449 | ((mega_inquiry3 *)inquiry)->rebuild_rate); |
| 2450 | } |
| 2451 | else { |
| 2452 | len = sprintf(page, "Rebuild Rate: [%d%%]\n", |
| 2453 | ((mraid_ext_inquiry *) |
| 2454 | inquiry)->raid_inq.adapter_info.rebuild_rate); |
| 2455 | } |
| 2456 | |
| 2457 | |
| 2458 | mega_free_inquiry(inquiry, dma_handle, pdev); |
| 2459 | |
| 2460 | free_local_pdev(pdev); |
| 2461 | |
| 2462 | *eof = 1; |
| 2463 | |
| 2464 | return len; |
| 2465 | } |
| 2466 | |
| 2467 | |
| 2468 | /** |
| 2469 | * proc_battery() |
| 2470 | * @page - buffer to write the data in |
| 2471 | * @start - where the actual data has been written in page |
| 2472 | * @offset - same meaning as the read system call |
| 2473 | * @count - same meaning as the read system call |
| 2474 | * @eof - set if no more data needs to be returned |
| 2475 | * @data - pointer to our soft state |
| 2476 | * |
| 2477 | * Display information about the battery module on the controller. |
| 2478 | */ |
| 2479 | static int |
| 2480 | proc_battery(char *page, char **start, off_t offset, int count, int *eof, |
| 2481 | void *data) |
| 2482 | { |
| 2483 | adapter_t *adapter = (adapter_t *)data; |
| 2484 | dma_addr_t dma_handle; |
| 2485 | caddr_t inquiry; |
| 2486 | struct pci_dev *pdev; |
| 2487 | u8 battery_status = 0; |
| 2488 | char str[256]; |
| 2489 | int len = 0; |
| 2490 | |
| 2491 | if( make_local_pdev(adapter, &pdev) != 0 ) { |
| 2492 | *eof = 1; |
| 2493 | return len; |
| 2494 | } |
| 2495 | |
| 2496 | if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL ) { |
| 2497 | free_local_pdev(pdev); |
| 2498 | *eof = 1; |
| 2499 | return len; |
| 2500 | } |
| 2501 | |
| 2502 | if( mega_adapinq(adapter, dma_handle) != 0 ) { |
| 2503 | |
| 2504 | len = sprintf(page, "Adapter inquiry failed.\n"); |
| 2505 | |
| 2506 | printk(KERN_WARNING "megaraid: inquiry failed.\n"); |
| 2507 | |
| 2508 | mega_free_inquiry(inquiry, dma_handle, pdev); |
| 2509 | |
| 2510 | free_local_pdev(pdev); |
| 2511 | |
| 2512 | *eof = 1; |
| 2513 | |
| 2514 | return len; |
| 2515 | } |
| 2516 | |
| 2517 | if( adapter->flag & BOARD_40LD ) { |
| 2518 | battery_status = ((mega_inquiry3 *)inquiry)->battery_status; |
| 2519 | } |
| 2520 | else { |
| 2521 | battery_status = ((mraid_ext_inquiry *)inquiry)-> |
| 2522 | raid_inq.adapter_info.battery_status; |
| 2523 | } |
| 2524 | |
| 2525 | /* |
| 2526 | * Decode the battery status |
| 2527 | */ |
| 2528 | sprintf(str, "Battery Status:[%d]", battery_status); |
| 2529 | |
| 2530 | if(battery_status == MEGA_BATT_CHARGE_DONE) |
| 2531 | strcat(str, " Charge Done"); |
| 2532 | |
| 2533 | if(battery_status & MEGA_BATT_MODULE_MISSING) |
| 2534 | strcat(str, " Module Missing"); |
| 2535 | |
| 2536 | if(battery_status & MEGA_BATT_LOW_VOLTAGE) |
| 2537 | strcat(str, " Low Voltage"); |
| 2538 | |
| 2539 | if(battery_status & MEGA_BATT_TEMP_HIGH) |
| 2540 | strcat(str, " Temperature High"); |
| 2541 | |
| 2542 | if(battery_status & MEGA_BATT_PACK_MISSING) |
| 2543 | strcat(str, " Pack Missing"); |
| 2544 | |
| 2545 | if(battery_status & MEGA_BATT_CHARGE_INPROG) |
| 2546 | strcat(str, " Charge In-progress"); |
| 2547 | |
| 2548 | if(battery_status & MEGA_BATT_CHARGE_FAIL) |
| 2549 | strcat(str, " Charge Fail"); |
| 2550 | |
| 2551 | if(battery_status & MEGA_BATT_CYCLES_EXCEEDED) |
| 2552 | strcat(str, " Cycles Exceeded"); |
| 2553 | |
| 2554 | len = sprintf(page, "%s\n", str); |
| 2555 | |
| 2556 | |
| 2557 | mega_free_inquiry(inquiry, dma_handle, pdev); |
| 2558 | |
| 2559 | free_local_pdev(pdev); |
| 2560 | |
| 2561 | *eof = 1; |
| 2562 | |
| 2563 | return len; |
| 2564 | } |
| 2565 | |
| 2566 | |
| 2567 | /** |
| 2568 | * proc_pdrv_ch0() |
| 2569 | * @page - buffer to write the data in |
| 2570 | * @start - where the actual data has been written in page |
| 2571 | * @offset - same meaning as the read system call |
| 2572 | * @count - same meaning as the read system call |
| 2573 | * @eof - set if no more data needs to be returned |
| 2574 | * @data - pointer to our soft state |
| 2575 | * |
| 2576 | * Display information about the physical drives on physical channel 0. |
| 2577 | */ |
| 2578 | static int |
| 2579 | proc_pdrv_ch0(char *page, char **start, off_t offset, int count, int *eof, |
| 2580 | void *data) |
| 2581 | { |
| 2582 | adapter_t *adapter = (adapter_t *)data; |
| 2583 | |
| 2584 | *eof = 1; |
| 2585 | |
| 2586 | return (proc_pdrv(adapter, page, 0)); |
| 2587 | } |
| 2588 | |
| 2589 | |
| 2590 | /** |
| 2591 | * proc_pdrv_ch1() |
| 2592 | * @page - buffer to write the data in |
| 2593 | * @start - where the actual data has been written in page |
| 2594 | * @offset - same meaning as the read system call |
| 2595 | * @count - same meaning as the read system call |
| 2596 | * @eof - set if no more data needs to be returned |
| 2597 | * @data - pointer to our soft state |
| 2598 | * |
| 2599 | * Display information about the physical drives on physical channel 1. |
| 2600 | */ |
| 2601 | static int |
| 2602 | proc_pdrv_ch1(char *page, char **start, off_t offset, int count, int *eof, |
| 2603 | void *data) |
| 2604 | { |
| 2605 | adapter_t *adapter = (adapter_t *)data; |
| 2606 | |
| 2607 | *eof = 1; |
| 2608 | |
| 2609 | return (proc_pdrv(adapter, page, 1)); |
| 2610 | } |
| 2611 | |
| 2612 | |
| 2613 | /** |
| 2614 | * proc_pdrv_ch2() |
| 2615 | * @page - buffer to write the data in |
| 2616 | * @start - where the actual data has been written in page |
| 2617 | * @offset - same meaning as the read system call |
| 2618 | * @count - same meaning as the read system call |
| 2619 | * @eof - set if no more data needs to be returned |
| 2620 | * @data - pointer to our soft state |
| 2621 | * |
| 2622 | * Display information about the physical drives on physical channel 2. |
| 2623 | */ |
| 2624 | static int |
| 2625 | proc_pdrv_ch2(char *page, char **start, off_t offset, int count, int *eof, |
| 2626 | void *data) |
| 2627 | { |
| 2628 | adapter_t *adapter = (adapter_t *)data; |
| 2629 | |
| 2630 | *eof = 1; |
| 2631 | |
| 2632 | return (proc_pdrv(adapter, page, 2)); |
| 2633 | } |
| 2634 | |
| 2635 | |
| 2636 | /** |
| 2637 | * proc_pdrv_ch3() |
| 2638 | * @page - buffer to write the data in |
| 2639 | * @start - where the actual data has been written in page |
| 2640 | * @offset - same meaning as the read system call |
| 2641 | * @count - same meaning as the read system call |
| 2642 | * @eof - set if no more data needs to be returned |
| 2643 | * @data - pointer to our soft state |
| 2644 | * |
| 2645 | * Display information about the physical drives on physical channel 3. |
| 2646 | */ |
| 2647 | static int |
| 2648 | proc_pdrv_ch3(char *page, char **start, off_t offset, int count, int *eof, |
| 2649 | void *data) |
| 2650 | { |
| 2651 | adapter_t *adapter = (adapter_t *)data; |
| 2652 | |
| 2653 | *eof = 1; |
| 2654 | |
| 2655 | return (proc_pdrv(adapter, page, 3)); |
| 2656 | } |
| 2657 | |
| 2658 | |
| 2659 | /** |
| 2660 | * proc_pdrv() |
| 2661 | * @page - buffer to write the data in |
| 2662 | * @adapter - pointer to our soft state |
| 2663 | * |
| 2664 | * Display information about the physical drives. |
| 2665 | */ |
| 2666 | static int |
| 2667 | proc_pdrv(adapter_t *adapter, char *page, int channel) |
| 2668 | { |
| 2669 | dma_addr_t dma_handle; |
| 2670 | char *scsi_inq; |
| 2671 | dma_addr_t scsi_inq_dma_handle; |
| 2672 | caddr_t inquiry; |
| 2673 | struct pci_dev *pdev; |
| 2674 | u8 *pdrv_state; |
| 2675 | u8 state; |
| 2676 | int tgt; |
| 2677 | int max_channels; |
| 2678 | int len = 0; |
| 2679 | char str[80]; |
| 2680 | int i; |
| 2681 | |
| 2682 | if( make_local_pdev(adapter, &pdev) != 0 ) { |
| 2683 | return len; |
| 2684 | } |
| 2685 | |
| 2686 | if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL ) { |
| 2687 | goto free_pdev; |
| 2688 | } |
| 2689 | |
| 2690 | if( mega_adapinq(adapter, dma_handle) != 0 ) { |
| 2691 | len = sprintf(page, "Adapter inquiry failed.\n"); |
| 2692 | |
| 2693 | printk(KERN_WARNING "megaraid: inquiry failed.\n"); |
| 2694 | |
| 2695 | goto free_inquiry; |
| 2696 | } |
| 2697 | |
| 2698 | |
| 2699 | scsi_inq = pci_alloc_consistent(pdev, 256, &scsi_inq_dma_handle); |
| 2700 | |
| 2701 | if( scsi_inq == NULL ) { |
| 2702 | len = sprintf(page, "memory not available for scsi inq.\n"); |
| 2703 | |
| 2704 | goto free_inquiry; |
| 2705 | } |
| 2706 | |
| 2707 | if( adapter->flag & BOARD_40LD ) { |
| 2708 | pdrv_state = ((mega_inquiry3 *)inquiry)->pdrv_state; |
| 2709 | } |
| 2710 | else { |
| 2711 | pdrv_state = ((mraid_ext_inquiry *)inquiry)-> |
| 2712 | raid_inq.pdrv_info.pdrv_state; |
| 2713 | } |
| 2714 | |
| 2715 | max_channels = adapter->product_info.nchannels; |
| 2716 | |
| 2717 | if( channel >= max_channels ) { |
| 2718 | goto free_pci; |
| 2719 | } |
| 2720 | |
| 2721 | for( tgt = 0; tgt <= MAX_TARGET; tgt++ ) { |
| 2722 | |
| 2723 | i = channel*16 + tgt; |
| 2724 | |
| 2725 | state = *(pdrv_state + i); |
| 2726 | |
| 2727 | switch( state & 0x0F ) { |
| 2728 | |
| 2729 | case PDRV_ONLINE: |
| 2730 | sprintf(str, |
| 2731 | "Channel:%2d Id:%2d State: Online", |
| 2732 | channel, tgt); |
| 2733 | break; |
| 2734 | |
| 2735 | case PDRV_FAILED: |
| 2736 | sprintf(str, |
| 2737 | "Channel:%2d Id:%2d State: Failed", |
| 2738 | channel, tgt); |
| 2739 | break; |
| 2740 | |
| 2741 | case PDRV_RBLD: |
| 2742 | sprintf(str, |
| 2743 | "Channel:%2d Id:%2d State: Rebuild", |
| 2744 | channel, tgt); |
| 2745 | break; |
| 2746 | |
| 2747 | case PDRV_HOTSPARE: |
| 2748 | sprintf(str, |
| 2749 | "Channel:%2d Id:%2d State: Hot spare", |
| 2750 | channel, tgt); |
| 2751 | break; |
| 2752 | |
| 2753 | default: |
| 2754 | sprintf(str, |
| 2755 | "Channel:%2d Id:%2d State: Un-configured", |
| 2756 | channel, tgt); |
| 2757 | break; |
| 2758 | |
| 2759 | } |
| 2760 | |
| 2761 | /* |
| 2762 | * This interface displays inquiries for disk drives |
| 2763 | * only. Inquries for logical drives and non-disk |
| 2764 | * devices are available through /proc/scsi/scsi |
| 2765 | */ |
| 2766 | memset(scsi_inq, 0, 256); |
| 2767 | if( mega_internal_dev_inquiry(adapter, channel, tgt, |
| 2768 | scsi_inq_dma_handle) || |
| 2769 | (scsi_inq[0] & 0x1F) != TYPE_DISK ) { |
| 2770 | continue; |
| 2771 | } |
| 2772 | |
| 2773 | /* |
| 2774 | * Check for overflow. We print less than 240 |
| 2775 | * characters for inquiry |
| 2776 | */ |
| 2777 | if( (len + 240) >= PAGE_SIZE ) break; |
| 2778 | |
| 2779 | len += sprintf(page+len, "%s.\n", str); |
| 2780 | |
| 2781 | len += mega_print_inquiry(page+len, scsi_inq); |
| 2782 | } |
| 2783 | |
| 2784 | free_pci: |
| 2785 | pci_free_consistent(pdev, 256, scsi_inq, scsi_inq_dma_handle); |
| 2786 | free_inquiry: |
| 2787 | mega_free_inquiry(inquiry, dma_handle, pdev); |
| 2788 | free_pdev: |
| 2789 | free_local_pdev(pdev); |
| 2790 | |
| 2791 | return len; |
| 2792 | } |
| 2793 | |
| 2794 | |
| 2795 | /* |
| 2796 | * Display scsi inquiry |
| 2797 | */ |
| 2798 | static int |
| 2799 | mega_print_inquiry(char *page, char *scsi_inq) |
| 2800 | { |
| 2801 | int len = 0; |
| 2802 | int i; |
| 2803 | |
| 2804 | len = sprintf(page, " Vendor: "); |
| 2805 | for( i = 8; i < 16; i++ ) { |
| 2806 | len += sprintf(page+len, "%c", scsi_inq[i]); |
| 2807 | } |
| 2808 | |
| 2809 | len += sprintf(page+len, " Model: "); |
| 2810 | |
| 2811 | for( i = 16; i < 32; i++ ) { |
| 2812 | len += sprintf(page+len, "%c", scsi_inq[i]); |
| 2813 | } |
| 2814 | |
| 2815 | len += sprintf(page+len, " Rev: "); |
| 2816 | |
| 2817 | for( i = 32; i < 36; i++ ) { |
| 2818 | len += sprintf(page+len, "%c", scsi_inq[i]); |
| 2819 | } |
| 2820 | |
| 2821 | len += sprintf(page+len, "\n"); |
| 2822 | |
| 2823 | i = scsi_inq[0] & 0x1f; |
| 2824 | |
Matthew Wilcox | 4ff3671 | 2006-07-04 12:15:20 -0600 | [diff] [blame] | 2825 | len += sprintf(page+len, " Type: %s ", scsi_device_type(i)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2826 | |
| 2827 | len += sprintf(page+len, |
| 2828 | " ANSI SCSI revision: %02x", scsi_inq[2] & 0x07); |
| 2829 | |
| 2830 | if( (scsi_inq[2] & 0x07) == 1 && (scsi_inq[3] & 0x0f) == 1 ) |
| 2831 | len += sprintf(page+len, " CCS\n"); |
| 2832 | else |
| 2833 | len += sprintf(page+len, "\n"); |
| 2834 | |
| 2835 | return len; |
| 2836 | } |
| 2837 | |
| 2838 | |
| 2839 | /** |
| 2840 | * proc_rdrv_10() |
| 2841 | * @page - buffer to write the data in |
| 2842 | * @start - where the actual data has been written in page |
| 2843 | * @offset - same meaning as the read system call |
| 2844 | * @count - same meaning as the read system call |
| 2845 | * @eof - set if no more data needs to be returned |
| 2846 | * @data - pointer to our soft state |
| 2847 | * |
| 2848 | * Display real time information about the logical drives 0 through 9. |
| 2849 | */ |
| 2850 | static int |
| 2851 | proc_rdrv_10(char *page, char **start, off_t offset, int count, int *eof, |
| 2852 | void *data) |
| 2853 | { |
| 2854 | adapter_t *adapter = (adapter_t *)data; |
| 2855 | |
| 2856 | *eof = 1; |
| 2857 | |
| 2858 | return (proc_rdrv(adapter, page, 0, 9)); |
| 2859 | } |
| 2860 | |
| 2861 | |
| 2862 | /** |
| 2863 | * proc_rdrv_20() |
| 2864 | * @page - buffer to write the data in |
| 2865 | * @start - where the actual data has been written in page |
| 2866 | * @offset - same meaning as the read system call |
| 2867 | * @count - same meaning as the read system call |
| 2868 | * @eof - set if no more data needs to be returned |
| 2869 | * @data - pointer to our soft state |
| 2870 | * |
| 2871 | * Display real time information about the logical drives 0 through 9. |
| 2872 | */ |
| 2873 | static int |
| 2874 | proc_rdrv_20(char *page, char **start, off_t offset, int count, int *eof, |
| 2875 | void *data) |
| 2876 | { |
| 2877 | adapter_t *adapter = (adapter_t *)data; |
| 2878 | |
| 2879 | *eof = 1; |
| 2880 | |
| 2881 | return (proc_rdrv(adapter, page, 10, 19)); |
| 2882 | } |
| 2883 | |
| 2884 | |
| 2885 | /** |
| 2886 | * proc_rdrv_30() |
| 2887 | * @page - buffer to write the data in |
| 2888 | * @start - where the actual data has been written in page |
| 2889 | * @offset - same meaning as the read system call |
| 2890 | * @count - same meaning as the read system call |
| 2891 | * @eof - set if no more data needs to be returned |
| 2892 | * @data - pointer to our soft state |
| 2893 | * |
| 2894 | * Display real time information about the logical drives 0 through 9. |
| 2895 | */ |
| 2896 | static int |
| 2897 | proc_rdrv_30(char *page, char **start, off_t offset, int count, int *eof, |
| 2898 | void *data) |
| 2899 | { |
| 2900 | adapter_t *adapter = (adapter_t *)data; |
| 2901 | |
| 2902 | *eof = 1; |
| 2903 | |
| 2904 | return (proc_rdrv(adapter, page, 20, 29)); |
| 2905 | } |
| 2906 | |
| 2907 | |
| 2908 | /** |
| 2909 | * proc_rdrv_40() |
| 2910 | * @page - buffer to write the data in |
| 2911 | * @start - where the actual data has been written in page |
| 2912 | * @offset - same meaning as the read system call |
| 2913 | * @count - same meaning as the read system call |
| 2914 | * @eof - set if no more data needs to be returned |
| 2915 | * @data - pointer to our soft state |
| 2916 | * |
| 2917 | * Display real time information about the logical drives 0 through 9. |
| 2918 | */ |
| 2919 | static int |
| 2920 | proc_rdrv_40(char *page, char **start, off_t offset, int count, int *eof, |
| 2921 | void *data) |
| 2922 | { |
| 2923 | adapter_t *adapter = (adapter_t *)data; |
| 2924 | |
| 2925 | *eof = 1; |
| 2926 | |
| 2927 | return (proc_rdrv(adapter, page, 30, 39)); |
| 2928 | } |
| 2929 | |
| 2930 | |
| 2931 | /** |
| 2932 | * proc_rdrv() |
| 2933 | * @page - buffer to write the data in |
| 2934 | * @adapter - pointer to our soft state |
| 2935 | * @start - starting logical drive to display |
| 2936 | * @end - ending logical drive to display |
| 2937 | * |
| 2938 | * We do not print the inquiry information since its already available through |
| 2939 | * /proc/scsi/scsi interface |
| 2940 | */ |
| 2941 | static int |
| 2942 | proc_rdrv(adapter_t *adapter, char *page, int start, int end ) |
| 2943 | { |
| 2944 | dma_addr_t dma_handle; |
| 2945 | logdrv_param *lparam; |
| 2946 | megacmd_t mc; |
| 2947 | char *disk_array; |
| 2948 | dma_addr_t disk_array_dma_handle; |
| 2949 | caddr_t inquiry; |
| 2950 | struct pci_dev *pdev; |
| 2951 | u8 *rdrv_state; |
| 2952 | int num_ldrv; |
| 2953 | u32 array_sz; |
| 2954 | int len = 0; |
| 2955 | int i; |
| 2956 | |
| 2957 | if( make_local_pdev(adapter, &pdev) != 0 ) { |
| 2958 | return len; |
| 2959 | } |
| 2960 | |
| 2961 | if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL ) { |
| 2962 | free_local_pdev(pdev); |
| 2963 | return len; |
| 2964 | } |
| 2965 | |
| 2966 | if( mega_adapinq(adapter, dma_handle) != 0 ) { |
| 2967 | |
| 2968 | len = sprintf(page, "Adapter inquiry failed.\n"); |
| 2969 | |
| 2970 | printk(KERN_WARNING "megaraid: inquiry failed.\n"); |
| 2971 | |
| 2972 | mega_free_inquiry(inquiry, dma_handle, pdev); |
| 2973 | |
| 2974 | free_local_pdev(pdev); |
| 2975 | |
| 2976 | return len; |
| 2977 | } |
| 2978 | |
| 2979 | memset(&mc, 0, sizeof(megacmd_t)); |
| 2980 | |
| 2981 | if( adapter->flag & BOARD_40LD ) { |
| 2982 | array_sz = sizeof(disk_array_40ld); |
| 2983 | |
| 2984 | rdrv_state = ((mega_inquiry3 *)inquiry)->ldrv_state; |
| 2985 | |
| 2986 | num_ldrv = ((mega_inquiry3 *)inquiry)->num_ldrv; |
| 2987 | } |
| 2988 | else { |
| 2989 | array_sz = sizeof(disk_array_8ld); |
| 2990 | |
| 2991 | rdrv_state = ((mraid_ext_inquiry *)inquiry)-> |
| 2992 | raid_inq.logdrv_info.ldrv_state; |
| 2993 | |
| 2994 | num_ldrv = ((mraid_ext_inquiry *)inquiry)-> |
| 2995 | raid_inq.logdrv_info.num_ldrv; |
| 2996 | } |
| 2997 | |
| 2998 | disk_array = pci_alloc_consistent(pdev, array_sz, |
| 2999 | &disk_array_dma_handle); |
| 3000 | |
| 3001 | if( disk_array == NULL ) { |
| 3002 | len = sprintf(page, "memory not available.\n"); |
| 3003 | |
| 3004 | mega_free_inquiry(inquiry, dma_handle, pdev); |
| 3005 | |
| 3006 | free_local_pdev(pdev); |
| 3007 | |
| 3008 | return len; |
| 3009 | } |
| 3010 | |
| 3011 | mc.xferaddr = (u32)disk_array_dma_handle; |
| 3012 | |
| 3013 | if( adapter->flag & BOARD_40LD ) { |
| 3014 | mc.cmd = FC_NEW_CONFIG; |
| 3015 | mc.opcode = OP_DCMD_READ_CONFIG; |
| 3016 | |
Christoph Hellwig | cb0258a | 2005-10-31 20:12:07 +0100 | [diff] [blame] | 3017 | if( mega_internal_command(adapter, &mc, NULL) ) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3018 | |
| 3019 | len = sprintf(page, "40LD read config failed.\n"); |
| 3020 | |
| 3021 | mega_free_inquiry(inquiry, dma_handle, pdev); |
| 3022 | |
| 3023 | pci_free_consistent(pdev, array_sz, disk_array, |
| 3024 | disk_array_dma_handle); |
| 3025 | |
| 3026 | free_local_pdev(pdev); |
| 3027 | |
| 3028 | return len; |
| 3029 | } |
| 3030 | |
| 3031 | } |
| 3032 | else { |
| 3033 | mc.cmd = NEW_READ_CONFIG_8LD; |
| 3034 | |
Christoph Hellwig | cb0258a | 2005-10-31 20:12:07 +0100 | [diff] [blame] | 3035 | if( mega_internal_command(adapter, &mc, NULL) ) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3036 | |
| 3037 | mc.cmd = READ_CONFIG_8LD; |
| 3038 | |
Christoph Hellwig | cb0258a | 2005-10-31 20:12:07 +0100 | [diff] [blame] | 3039 | if( mega_internal_command(adapter, &mc, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3040 | NULL) ){ |
| 3041 | |
| 3042 | len = sprintf(page, |
| 3043 | "8LD read config failed.\n"); |
| 3044 | |
| 3045 | mega_free_inquiry(inquiry, dma_handle, pdev); |
| 3046 | |
| 3047 | pci_free_consistent(pdev, array_sz, |
| 3048 | disk_array, |
| 3049 | disk_array_dma_handle); |
| 3050 | |
| 3051 | free_local_pdev(pdev); |
| 3052 | |
| 3053 | return len; |
| 3054 | } |
| 3055 | } |
| 3056 | } |
| 3057 | |
| 3058 | for( i = start; i < ( (end+1 < num_ldrv) ? end+1 : num_ldrv ); i++ ) { |
| 3059 | |
| 3060 | if( adapter->flag & BOARD_40LD ) { |
| 3061 | lparam = |
| 3062 | &((disk_array_40ld *)disk_array)->ldrv[i].lparam; |
| 3063 | } |
| 3064 | else { |
| 3065 | lparam = |
| 3066 | &((disk_array_8ld *)disk_array)->ldrv[i].lparam; |
| 3067 | } |
| 3068 | |
| 3069 | /* |
| 3070 | * Check for overflow. We print less than 240 characters for |
| 3071 | * information about each logical drive. |
| 3072 | */ |
| 3073 | if( (len + 240) >= PAGE_SIZE ) break; |
| 3074 | |
| 3075 | len += sprintf(page+len, "Logical drive:%2d:, ", i); |
| 3076 | |
| 3077 | switch( rdrv_state[i] & 0x0F ) { |
| 3078 | case RDRV_OFFLINE: |
| 3079 | len += sprintf(page+len, "state: offline"); |
| 3080 | break; |
| 3081 | |
| 3082 | case RDRV_DEGRADED: |
| 3083 | len += sprintf(page+len, "state: degraded"); |
| 3084 | break; |
| 3085 | |
| 3086 | case RDRV_OPTIMAL: |
| 3087 | len += sprintf(page+len, "state: optimal"); |
| 3088 | break; |
| 3089 | |
| 3090 | case RDRV_DELETED: |
| 3091 | len += sprintf(page+len, "state: deleted"); |
| 3092 | break; |
| 3093 | |
| 3094 | default: |
| 3095 | len += sprintf(page+len, "state: unknown"); |
| 3096 | break; |
| 3097 | } |
| 3098 | |
| 3099 | /* |
| 3100 | * Check if check consistency or initialization is going on |
| 3101 | * for this logical drive. |
| 3102 | */ |
| 3103 | if( (rdrv_state[i] & 0xF0) == 0x20 ) { |
| 3104 | len += sprintf(page+len, |
| 3105 | ", check-consistency in progress"); |
| 3106 | } |
| 3107 | else if( (rdrv_state[i] & 0xF0) == 0x10 ) { |
| 3108 | len += sprintf(page+len, |
| 3109 | ", initialization in progress"); |
| 3110 | } |
| 3111 | |
| 3112 | len += sprintf(page+len, "\n"); |
| 3113 | |
| 3114 | len += sprintf(page+len, "Span depth:%3d, ", |
| 3115 | lparam->span_depth); |
| 3116 | |
| 3117 | len += sprintf(page+len, "RAID level:%3d, ", |
| 3118 | lparam->level); |
| 3119 | |
| 3120 | len += sprintf(page+len, "Stripe size:%3d, ", |
| 3121 | lparam->stripe_sz ? lparam->stripe_sz/2: 128); |
| 3122 | |
| 3123 | len += sprintf(page+len, "Row size:%3d\n", |
| 3124 | lparam->row_size); |
| 3125 | |
| 3126 | |
| 3127 | len += sprintf(page+len, "Read Policy: "); |
| 3128 | |
| 3129 | switch(lparam->read_ahead) { |
| 3130 | |
| 3131 | case NO_READ_AHEAD: |
| 3132 | len += sprintf(page+len, "No read ahead, "); |
| 3133 | break; |
| 3134 | |
| 3135 | case READ_AHEAD: |
| 3136 | len += sprintf(page+len, "Read ahead, "); |
| 3137 | break; |
| 3138 | |
| 3139 | case ADAP_READ_AHEAD: |
| 3140 | len += sprintf(page+len, "Adaptive, "); |
| 3141 | break; |
| 3142 | |
| 3143 | } |
| 3144 | |
| 3145 | len += sprintf(page+len, "Write Policy: "); |
| 3146 | |
| 3147 | switch(lparam->write_mode) { |
| 3148 | |
| 3149 | case WRMODE_WRITE_THRU: |
| 3150 | len += sprintf(page+len, "Write thru, "); |
| 3151 | break; |
| 3152 | |
| 3153 | case WRMODE_WRITE_BACK: |
| 3154 | len += sprintf(page+len, "Write back, "); |
| 3155 | break; |
| 3156 | } |
| 3157 | |
| 3158 | len += sprintf(page+len, "Cache Policy: "); |
| 3159 | |
| 3160 | switch(lparam->direct_io) { |
| 3161 | |
| 3162 | case CACHED_IO: |
| 3163 | len += sprintf(page+len, "Cached IO\n\n"); |
| 3164 | break; |
| 3165 | |
| 3166 | case DIRECT_IO: |
| 3167 | len += sprintf(page+len, "Direct IO\n\n"); |
| 3168 | break; |
| 3169 | } |
| 3170 | } |
| 3171 | |
| 3172 | mega_free_inquiry(inquiry, dma_handle, pdev); |
| 3173 | |
| 3174 | pci_free_consistent(pdev, array_sz, disk_array, |
| 3175 | disk_array_dma_handle); |
| 3176 | |
| 3177 | free_local_pdev(pdev); |
| 3178 | |
| 3179 | return len; |
| 3180 | } |
| 3181 | |
| 3182 | #endif |
| 3183 | |
| 3184 | |
| 3185 | /** |
| 3186 | * megaraid_biosparam() |
| 3187 | * |
| 3188 | * Return the disk geometry for a particular disk |
| 3189 | */ |
| 3190 | static int |
| 3191 | megaraid_biosparam(struct scsi_device *sdev, struct block_device *bdev, |
| 3192 | sector_t capacity, int geom[]) |
| 3193 | { |
| 3194 | adapter_t *adapter; |
| 3195 | unsigned char *bh; |
| 3196 | int heads; |
| 3197 | int sectors; |
| 3198 | int cylinders; |
| 3199 | int rval; |
| 3200 | |
| 3201 | /* Get pointer to host config structure */ |
| 3202 | adapter = (adapter_t *)sdev->host->hostdata; |
| 3203 | |
| 3204 | if (IS_RAID_CH(adapter, sdev->channel)) { |
| 3205 | /* Default heads (64) & sectors (32) */ |
| 3206 | heads = 64; |
| 3207 | sectors = 32; |
| 3208 | cylinders = (ulong)capacity / (heads * sectors); |
| 3209 | |
| 3210 | /* |
| 3211 | * Handle extended translation size for logical drives |
| 3212 | * > 1Gb |
| 3213 | */ |
| 3214 | if ((ulong)capacity >= 0x200000) { |
| 3215 | heads = 255; |
| 3216 | sectors = 63; |
| 3217 | cylinders = (ulong)capacity / (heads * sectors); |
| 3218 | } |
| 3219 | |
| 3220 | /* return result */ |
| 3221 | geom[0] = heads; |
| 3222 | geom[1] = sectors; |
| 3223 | geom[2] = cylinders; |
| 3224 | } |
| 3225 | else { |
| 3226 | bh = scsi_bios_ptable(bdev); |
| 3227 | |
| 3228 | if( bh ) { |
| 3229 | rval = scsi_partsize(bh, capacity, |
| 3230 | &geom[2], &geom[0], &geom[1]); |
| 3231 | kfree(bh); |
| 3232 | if( rval != -1 ) |
| 3233 | return rval; |
| 3234 | } |
| 3235 | |
| 3236 | printk(KERN_INFO |
| 3237 | "megaraid: invalid partition on this disk on channel %d\n", |
| 3238 | sdev->channel); |
| 3239 | |
| 3240 | /* Default heads (64) & sectors (32) */ |
| 3241 | heads = 64; |
| 3242 | sectors = 32; |
| 3243 | cylinders = (ulong)capacity / (heads * sectors); |
| 3244 | |
| 3245 | /* Handle extended translation size for logical drives > 1Gb */ |
| 3246 | if ((ulong)capacity >= 0x200000) { |
| 3247 | heads = 255; |
| 3248 | sectors = 63; |
| 3249 | cylinders = (ulong)capacity / (heads * sectors); |
| 3250 | } |
| 3251 | |
| 3252 | /* return result */ |
| 3253 | geom[0] = heads; |
| 3254 | geom[1] = sectors; |
| 3255 | geom[2] = cylinders; |
| 3256 | } |
| 3257 | |
| 3258 | return 0; |
| 3259 | } |
| 3260 | |
| 3261 | /** |
| 3262 | * mega_init_scb() |
| 3263 | * @adapter - pointer to our soft state |
| 3264 | * |
| 3265 | * Allocate memory for the various pointers in the scb structures: |
| 3266 | * scatter-gather list pointer, passthru and extended passthru structure |
| 3267 | * pointers. |
| 3268 | */ |
| 3269 | static int |
| 3270 | mega_init_scb(adapter_t *adapter) |
| 3271 | { |
| 3272 | scb_t *scb; |
| 3273 | int i; |
| 3274 | |
| 3275 | for( i = 0; i < adapter->max_cmds; i++ ) { |
| 3276 | |
| 3277 | scb = &adapter->scb_list[i]; |
| 3278 | |
| 3279 | scb->sgl64 = NULL; |
| 3280 | scb->sgl = NULL; |
| 3281 | scb->pthru = NULL; |
| 3282 | scb->epthru = NULL; |
| 3283 | } |
| 3284 | |
| 3285 | for( i = 0; i < adapter->max_cmds; i++ ) { |
| 3286 | |
| 3287 | scb = &adapter->scb_list[i]; |
| 3288 | |
| 3289 | scb->idx = i; |
| 3290 | |
| 3291 | scb->sgl64 = pci_alloc_consistent(adapter->dev, |
| 3292 | sizeof(mega_sgl64) * adapter->sglen, |
| 3293 | &scb->sgl_dma_addr); |
| 3294 | |
| 3295 | scb->sgl = (mega_sglist *)scb->sgl64; |
| 3296 | |
| 3297 | if( !scb->sgl ) { |
| 3298 | printk(KERN_WARNING "RAID: Can't allocate sglist.\n"); |
| 3299 | mega_free_sgl(adapter); |
| 3300 | return -1; |
| 3301 | } |
| 3302 | |
| 3303 | scb->pthru = pci_alloc_consistent(adapter->dev, |
| 3304 | sizeof(mega_passthru), |
| 3305 | &scb->pthru_dma_addr); |
| 3306 | |
| 3307 | if( !scb->pthru ) { |
| 3308 | printk(KERN_WARNING "RAID: Can't allocate passthru.\n"); |
| 3309 | mega_free_sgl(adapter); |
| 3310 | return -1; |
| 3311 | } |
| 3312 | |
| 3313 | scb->epthru = pci_alloc_consistent(adapter->dev, |
| 3314 | sizeof(mega_ext_passthru), |
| 3315 | &scb->epthru_dma_addr); |
| 3316 | |
| 3317 | if( !scb->epthru ) { |
| 3318 | printk(KERN_WARNING |
| 3319 | "Can't allocate extended passthru.\n"); |
| 3320 | mega_free_sgl(adapter); |
| 3321 | return -1; |
| 3322 | } |
| 3323 | |
| 3324 | |
| 3325 | scb->dma_type = MEGA_DMA_TYPE_NONE; |
| 3326 | |
| 3327 | /* |
| 3328 | * Link to free list |
| 3329 | * lock not required since we are loading the driver, so no |
| 3330 | * commands possible right now. |
| 3331 | */ |
| 3332 | scb->state = SCB_FREE; |
| 3333 | scb->cmd = NULL; |
| 3334 | list_add(&scb->list, &adapter->free_list); |
| 3335 | } |
| 3336 | |
| 3337 | return 0; |
| 3338 | } |
| 3339 | |
| 3340 | |
| 3341 | /** |
| 3342 | * megadev_open() |
| 3343 | * @inode - unused |
| 3344 | * @filep - unused |
| 3345 | * |
| 3346 | * Routines for the character/ioctl interface to the driver. Find out if this |
| 3347 | * is a valid open. If yes, increment the module use count so that it cannot |
| 3348 | * be unloaded. |
| 3349 | */ |
| 3350 | static int |
| 3351 | megadev_open (struct inode *inode, struct file *filep) |
| 3352 | { |
| 3353 | /* |
| 3354 | * Only allow superuser to access private ioctl interface |
| 3355 | */ |
| 3356 | if( !capable(CAP_SYS_ADMIN) ) return -EACCES; |
| 3357 | |
| 3358 | return 0; |
| 3359 | } |
| 3360 | |
| 3361 | |
| 3362 | /** |
| 3363 | * megadev_ioctl() |
| 3364 | * @inode - Our device inode |
| 3365 | * @filep - unused |
| 3366 | * @cmd - ioctl command |
| 3367 | * @arg - user buffer |
| 3368 | * |
| 3369 | * ioctl entry point for our private ioctl interface. We move the data in from |
| 3370 | * the user space, prepare the command (if necessary, convert the old MIMD |
| 3371 | * ioctl to new ioctl command), and issue a synchronous command to the |
| 3372 | * controller. |
| 3373 | */ |
| 3374 | static int |
| 3375 | megadev_ioctl(struct inode *inode, struct file *filep, unsigned int cmd, |
| 3376 | unsigned long arg) |
| 3377 | { |
| 3378 | adapter_t *adapter; |
| 3379 | nitioctl_t uioc; |
| 3380 | int adapno; |
| 3381 | int rval; |
| 3382 | mega_passthru __user *upthru; /* user address for passthru */ |
| 3383 | mega_passthru *pthru; /* copy user passthru here */ |
| 3384 | dma_addr_t pthru_dma_hndl; |
| 3385 | void *data = NULL; /* data to be transferred */ |
| 3386 | dma_addr_t data_dma_hndl; /* dma handle for data xfer area */ |
| 3387 | megacmd_t mc; |
| 3388 | megastat_t __user *ustats; |
| 3389 | int num_ldrv; |
| 3390 | u32 uxferaddr = 0; |
| 3391 | struct pci_dev *pdev; |
| 3392 | |
| 3393 | ustats = NULL; /* avoid compilation warnings */ |
| 3394 | num_ldrv = 0; |
| 3395 | |
| 3396 | /* |
| 3397 | * Make sure only USCSICMD are issued through this interface. |
| 3398 | * MIMD application would still fire different command. |
| 3399 | */ |
| 3400 | if( (_IOC_TYPE(cmd) != MEGAIOC_MAGIC) && (cmd != USCSICMD) ) { |
| 3401 | return -EINVAL; |
| 3402 | } |
| 3403 | |
| 3404 | /* |
| 3405 | * Check and convert a possible MIMD command to NIT command. |
| 3406 | * mega_m_to_n() copies the data from the user space, so we do not |
| 3407 | * have to do it here. |
| 3408 | * NOTE: We will need some user address to copyout the data, therefore |
| 3409 | * the inteface layer will also provide us with the required user |
| 3410 | * addresses. |
| 3411 | */ |
| 3412 | memset(&uioc, 0, sizeof(nitioctl_t)); |
| 3413 | if( (rval = mega_m_to_n( (void __user *)arg, &uioc)) != 0 ) |
| 3414 | return rval; |
| 3415 | |
| 3416 | |
| 3417 | switch( uioc.opcode ) { |
| 3418 | |
| 3419 | case GET_DRIVER_VER: |
| 3420 | if( put_user(driver_ver, (u32 __user *)uioc.uioc_uaddr) ) |
| 3421 | return (-EFAULT); |
| 3422 | |
| 3423 | break; |
| 3424 | |
| 3425 | case GET_N_ADAP: |
| 3426 | if( put_user(hba_count, (u32 __user *)uioc.uioc_uaddr) ) |
| 3427 | return (-EFAULT); |
| 3428 | |
| 3429 | /* |
| 3430 | * Shucks. MIMD interface returns a positive value for number |
| 3431 | * of adapters. TODO: Change it to return 0 when there is no |
| 3432 | * applicatio using mimd interface. |
| 3433 | */ |
| 3434 | return hba_count; |
| 3435 | |
| 3436 | case GET_ADAP_INFO: |
| 3437 | |
| 3438 | /* |
| 3439 | * Which adapter |
| 3440 | */ |
| 3441 | if( (adapno = GETADAP(uioc.adapno)) >= hba_count ) |
| 3442 | return (-ENODEV); |
| 3443 | |
| 3444 | if( copy_to_user(uioc.uioc_uaddr, mcontroller+adapno, |
| 3445 | sizeof(struct mcontroller)) ) |
| 3446 | return (-EFAULT); |
| 3447 | break; |
| 3448 | |
| 3449 | #if MEGA_HAVE_STATS |
| 3450 | |
| 3451 | case GET_STATS: |
| 3452 | /* |
| 3453 | * Which adapter |
| 3454 | */ |
| 3455 | if( (adapno = GETADAP(uioc.adapno)) >= hba_count ) |
| 3456 | return (-ENODEV); |
| 3457 | |
| 3458 | adapter = hba_soft_state[adapno]; |
| 3459 | |
| 3460 | ustats = uioc.uioc_uaddr; |
| 3461 | |
| 3462 | if( copy_from_user(&num_ldrv, &ustats->num_ldrv, sizeof(int)) ) |
| 3463 | return (-EFAULT); |
| 3464 | |
| 3465 | /* |
| 3466 | * Check for the validity of the logical drive number |
| 3467 | */ |
| 3468 | if( num_ldrv >= MAX_LOGICAL_DRIVES_40LD ) return -EINVAL; |
| 3469 | |
| 3470 | if( copy_to_user(ustats->nreads, adapter->nreads, |
| 3471 | num_ldrv*sizeof(u32)) ) |
| 3472 | return -EFAULT; |
| 3473 | |
| 3474 | if( copy_to_user(ustats->nreadblocks, adapter->nreadblocks, |
| 3475 | num_ldrv*sizeof(u32)) ) |
| 3476 | return -EFAULT; |
| 3477 | |
| 3478 | if( copy_to_user(ustats->nwrites, adapter->nwrites, |
| 3479 | num_ldrv*sizeof(u32)) ) |
| 3480 | return -EFAULT; |
| 3481 | |
| 3482 | if( copy_to_user(ustats->nwriteblocks, adapter->nwriteblocks, |
| 3483 | num_ldrv*sizeof(u32)) ) |
| 3484 | return -EFAULT; |
| 3485 | |
| 3486 | if( copy_to_user(ustats->rd_errors, adapter->rd_errors, |
| 3487 | num_ldrv*sizeof(u32)) ) |
| 3488 | return -EFAULT; |
| 3489 | |
| 3490 | if( copy_to_user(ustats->wr_errors, adapter->wr_errors, |
| 3491 | num_ldrv*sizeof(u32)) ) |
| 3492 | return -EFAULT; |
| 3493 | |
| 3494 | return 0; |
| 3495 | |
| 3496 | #endif |
| 3497 | case MBOX_CMD: |
| 3498 | |
| 3499 | /* |
| 3500 | * Which adapter |
| 3501 | */ |
| 3502 | if( (adapno = GETADAP(uioc.adapno)) >= hba_count ) |
| 3503 | return (-ENODEV); |
| 3504 | |
| 3505 | adapter = hba_soft_state[adapno]; |
| 3506 | |
| 3507 | /* |
| 3508 | * Deletion of logical drive is a special case. The adapter |
| 3509 | * should be quiescent before this command is issued. |
| 3510 | */ |
| 3511 | if( uioc.uioc_rmbox[0] == FC_DEL_LOGDRV && |
| 3512 | uioc.uioc_rmbox[2] == OP_DEL_LOGDRV ) { |
| 3513 | |
| 3514 | /* |
| 3515 | * Do we support this feature |
| 3516 | */ |
| 3517 | if( !adapter->support_random_del ) { |
| 3518 | printk(KERN_WARNING "megaraid: logdrv "); |
| 3519 | printk("delete on non-supporting F/W.\n"); |
| 3520 | |
| 3521 | return (-EINVAL); |
| 3522 | } |
| 3523 | |
| 3524 | rval = mega_del_logdrv( adapter, uioc.uioc_rmbox[3] ); |
| 3525 | |
| 3526 | if( rval == 0 ) { |
| 3527 | memset(&mc, 0, sizeof(megacmd_t)); |
| 3528 | |
| 3529 | mc.status = rval; |
| 3530 | |
| 3531 | rval = mega_n_to_m((void __user *)arg, &mc); |
| 3532 | } |
| 3533 | |
| 3534 | return rval; |
| 3535 | } |
| 3536 | /* |
| 3537 | * This interface only support the regular passthru commands. |
| 3538 | * Reject extended passthru and 64-bit passthru |
| 3539 | */ |
| 3540 | if( uioc.uioc_rmbox[0] == MEGA_MBOXCMD_PASSTHRU64 || |
| 3541 | uioc.uioc_rmbox[0] == MEGA_MBOXCMD_EXTPTHRU ) { |
| 3542 | |
| 3543 | printk(KERN_WARNING "megaraid: rejected passthru.\n"); |
| 3544 | |
| 3545 | return (-EINVAL); |
| 3546 | } |
| 3547 | |
| 3548 | /* |
| 3549 | * For all internal commands, the buffer must be allocated in |
| 3550 | * <4GB address range |
| 3551 | */ |
| 3552 | if( make_local_pdev(adapter, &pdev) != 0 ) |
| 3553 | return -EIO; |
| 3554 | |
| 3555 | /* Is it a passthru command or a DCMD */ |
| 3556 | if( uioc.uioc_rmbox[0] == MEGA_MBOXCMD_PASSTHRU ) { |
| 3557 | /* Passthru commands */ |
| 3558 | |
| 3559 | pthru = pci_alloc_consistent(pdev, |
| 3560 | sizeof(mega_passthru), |
| 3561 | &pthru_dma_hndl); |
| 3562 | |
| 3563 | if( pthru == NULL ) { |
| 3564 | free_local_pdev(pdev); |
| 3565 | return (-ENOMEM); |
| 3566 | } |
| 3567 | |
| 3568 | /* |
| 3569 | * The user passthru structure |
| 3570 | */ |
| 3571 | upthru = (mega_passthru __user *)MBOX(uioc)->xferaddr; |
| 3572 | |
| 3573 | /* |
| 3574 | * Copy in the user passthru here. |
| 3575 | */ |
| 3576 | if( copy_from_user(pthru, upthru, |
| 3577 | sizeof(mega_passthru)) ) { |
| 3578 | |
| 3579 | pci_free_consistent(pdev, |
| 3580 | sizeof(mega_passthru), pthru, |
| 3581 | pthru_dma_hndl); |
| 3582 | |
| 3583 | free_local_pdev(pdev); |
| 3584 | |
| 3585 | return (-EFAULT); |
| 3586 | } |
| 3587 | |
| 3588 | /* |
| 3589 | * Is there a data transfer |
| 3590 | */ |
| 3591 | if( pthru->dataxferlen ) { |
| 3592 | data = pci_alloc_consistent(pdev, |
| 3593 | pthru->dataxferlen, |
| 3594 | &data_dma_hndl); |
| 3595 | |
| 3596 | if( data == NULL ) { |
| 3597 | pci_free_consistent(pdev, |
| 3598 | sizeof(mega_passthru), |
| 3599 | pthru, |
| 3600 | pthru_dma_hndl); |
| 3601 | |
| 3602 | free_local_pdev(pdev); |
| 3603 | |
| 3604 | return (-ENOMEM); |
| 3605 | } |
| 3606 | |
| 3607 | /* |
| 3608 | * Save the user address and point the kernel |
| 3609 | * address at just allocated memory |
| 3610 | */ |
| 3611 | uxferaddr = pthru->dataxferaddr; |
| 3612 | pthru->dataxferaddr = data_dma_hndl; |
| 3613 | } |
| 3614 | |
| 3615 | |
| 3616 | /* |
| 3617 | * Is data coming down-stream |
| 3618 | */ |
| 3619 | if( pthru->dataxferlen && (uioc.flags & UIOC_WR) ) { |
| 3620 | /* |
| 3621 | * Get the user data |
| 3622 | */ |
| 3623 | if( copy_from_user(data, (char __user *)uxferaddr, |
| 3624 | pthru->dataxferlen) ) { |
| 3625 | rval = (-EFAULT); |
| 3626 | goto freemem_and_return; |
| 3627 | } |
| 3628 | } |
| 3629 | |
| 3630 | memset(&mc, 0, sizeof(megacmd_t)); |
| 3631 | |
| 3632 | mc.cmd = MEGA_MBOXCMD_PASSTHRU; |
| 3633 | mc.xferaddr = (u32)pthru_dma_hndl; |
| 3634 | |
| 3635 | /* |
| 3636 | * Issue the command |
| 3637 | */ |
Christoph Hellwig | cb0258a | 2005-10-31 20:12:07 +0100 | [diff] [blame] | 3638 | mega_internal_command(adapter, &mc, pthru); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3639 | |
| 3640 | rval = mega_n_to_m((void __user *)arg, &mc); |
| 3641 | |
| 3642 | if( rval ) goto freemem_and_return; |
| 3643 | |
| 3644 | |
| 3645 | /* |
| 3646 | * Is data going up-stream |
| 3647 | */ |
| 3648 | if( pthru->dataxferlen && (uioc.flags & UIOC_RD) ) { |
| 3649 | if( copy_to_user((char __user *)uxferaddr, data, |
| 3650 | pthru->dataxferlen) ) { |
| 3651 | rval = (-EFAULT); |
| 3652 | } |
| 3653 | } |
| 3654 | |
| 3655 | /* |
| 3656 | * Send the request sense data also, irrespective of |
| 3657 | * whether the user has asked for it or not. |
| 3658 | */ |
Jesper Juhl | 2d2f8d5 | 2006-09-15 14:43:11 +0200 | [diff] [blame] | 3659 | if (copy_to_user(upthru->reqsensearea, |
| 3660 | pthru->reqsensearea, 14)) |
| 3661 | rval = -EFAULT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3662 | |
| 3663 | freemem_and_return: |
| 3664 | if( pthru->dataxferlen ) { |
| 3665 | pci_free_consistent(pdev, |
| 3666 | pthru->dataxferlen, data, |
| 3667 | data_dma_hndl); |
| 3668 | } |
| 3669 | |
| 3670 | pci_free_consistent(pdev, sizeof(mega_passthru), |
| 3671 | pthru, pthru_dma_hndl); |
| 3672 | |
| 3673 | free_local_pdev(pdev); |
| 3674 | |
| 3675 | return rval; |
| 3676 | } |
| 3677 | else { |
| 3678 | /* DCMD commands */ |
| 3679 | |
| 3680 | /* |
| 3681 | * Is there a data transfer |
| 3682 | */ |
| 3683 | if( uioc.xferlen ) { |
| 3684 | data = pci_alloc_consistent(pdev, |
| 3685 | uioc.xferlen, &data_dma_hndl); |
| 3686 | |
| 3687 | if( data == NULL ) { |
| 3688 | free_local_pdev(pdev); |
| 3689 | return (-ENOMEM); |
| 3690 | } |
| 3691 | |
| 3692 | uxferaddr = MBOX(uioc)->xferaddr; |
| 3693 | } |
| 3694 | |
| 3695 | /* |
| 3696 | * Is data coming down-stream |
| 3697 | */ |
| 3698 | if( uioc.xferlen && (uioc.flags & UIOC_WR) ) { |
| 3699 | /* |
| 3700 | * Get the user data |
| 3701 | */ |
| 3702 | if( copy_from_user(data, (char __user *)uxferaddr, |
| 3703 | uioc.xferlen) ) { |
| 3704 | |
| 3705 | pci_free_consistent(pdev, |
| 3706 | uioc.xferlen, |
| 3707 | data, data_dma_hndl); |
| 3708 | |
| 3709 | free_local_pdev(pdev); |
| 3710 | |
| 3711 | return (-EFAULT); |
| 3712 | } |
| 3713 | } |
| 3714 | |
| 3715 | memcpy(&mc, MBOX(uioc), sizeof(megacmd_t)); |
| 3716 | |
| 3717 | mc.xferaddr = (u32)data_dma_hndl; |
| 3718 | |
| 3719 | /* |
| 3720 | * Issue the command |
| 3721 | */ |
Christoph Hellwig | cb0258a | 2005-10-31 20:12:07 +0100 | [diff] [blame] | 3722 | mega_internal_command(adapter, &mc, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3723 | |
| 3724 | rval = mega_n_to_m((void __user *)arg, &mc); |
| 3725 | |
| 3726 | if( rval ) { |
| 3727 | if( uioc.xferlen ) { |
| 3728 | pci_free_consistent(pdev, |
| 3729 | uioc.xferlen, data, |
| 3730 | data_dma_hndl); |
| 3731 | } |
| 3732 | |
| 3733 | free_local_pdev(pdev); |
| 3734 | |
| 3735 | return rval; |
| 3736 | } |
| 3737 | |
| 3738 | /* |
| 3739 | * Is data going up-stream |
| 3740 | */ |
| 3741 | if( uioc.xferlen && (uioc.flags & UIOC_RD) ) { |
| 3742 | if( copy_to_user((char __user *)uxferaddr, data, |
| 3743 | uioc.xferlen) ) { |
| 3744 | |
| 3745 | rval = (-EFAULT); |
| 3746 | } |
| 3747 | } |
| 3748 | |
| 3749 | if( uioc.xferlen ) { |
| 3750 | pci_free_consistent(pdev, |
| 3751 | uioc.xferlen, data, |
| 3752 | data_dma_hndl); |
| 3753 | } |
| 3754 | |
| 3755 | free_local_pdev(pdev); |
| 3756 | |
| 3757 | return rval; |
| 3758 | } |
| 3759 | |
| 3760 | default: |
| 3761 | return (-EINVAL); |
| 3762 | } |
| 3763 | |
| 3764 | return 0; |
| 3765 | } |
| 3766 | |
| 3767 | /** |
| 3768 | * mega_m_to_n() |
| 3769 | * @arg - user address |
| 3770 | * @uioc - new ioctl structure |
| 3771 | * |
| 3772 | * A thin layer to convert older mimd interface ioctl structure to NIT ioctl |
| 3773 | * structure |
| 3774 | * |
| 3775 | * Converts the older mimd ioctl structure to newer NIT structure |
| 3776 | */ |
| 3777 | static int |
| 3778 | mega_m_to_n(void __user *arg, nitioctl_t *uioc) |
| 3779 | { |
| 3780 | struct uioctl_t uioc_mimd; |
| 3781 | char signature[8] = {0}; |
| 3782 | u8 opcode; |
| 3783 | u8 subopcode; |
| 3784 | |
| 3785 | |
| 3786 | /* |
| 3787 | * check is the application conforms to NIT. We do not have to do much |
| 3788 | * in that case. |
| 3789 | * We exploit the fact that the signature is stored in the very |
| 3790 | * begining of the structure. |
| 3791 | */ |
| 3792 | |
| 3793 | if( copy_from_user(signature, arg, 7) ) |
| 3794 | return (-EFAULT); |
| 3795 | |
| 3796 | if( memcmp(signature, "MEGANIT", 7) == 0 ) { |
| 3797 | |
| 3798 | /* |
| 3799 | * NOTE NOTE: The nit ioctl is still under flux because of |
| 3800 | * change of mailbox definition, in HPE. No applications yet |
| 3801 | * use this interface and let's not have applications use this |
| 3802 | * interface till the new specifitions are in place. |
| 3803 | */ |
| 3804 | return -EINVAL; |
| 3805 | #if 0 |
| 3806 | if( copy_from_user(uioc, arg, sizeof(nitioctl_t)) ) |
| 3807 | return (-EFAULT); |
| 3808 | return 0; |
| 3809 | #endif |
| 3810 | } |
| 3811 | |
| 3812 | /* |
| 3813 | * Else assume we have mimd uioctl_t as arg. Convert to nitioctl_t |
| 3814 | * |
| 3815 | * Get the user ioctl structure |
| 3816 | */ |
| 3817 | if( copy_from_user(&uioc_mimd, arg, sizeof(struct uioctl_t)) ) |
| 3818 | return (-EFAULT); |
| 3819 | |
| 3820 | |
| 3821 | /* |
| 3822 | * Get the opcode and subopcode for the commands |
| 3823 | */ |
| 3824 | opcode = uioc_mimd.ui.fcs.opcode; |
| 3825 | subopcode = uioc_mimd.ui.fcs.subopcode; |
| 3826 | |
| 3827 | switch (opcode) { |
| 3828 | case 0x82: |
| 3829 | |
| 3830 | switch (subopcode) { |
| 3831 | |
| 3832 | case MEGAIOC_QDRVRVER: /* Query driver version */ |
| 3833 | uioc->opcode = GET_DRIVER_VER; |
| 3834 | uioc->uioc_uaddr = uioc_mimd.data; |
| 3835 | break; |
| 3836 | |
| 3837 | case MEGAIOC_QNADAP: /* Get # of adapters */ |
| 3838 | uioc->opcode = GET_N_ADAP; |
| 3839 | uioc->uioc_uaddr = uioc_mimd.data; |
| 3840 | break; |
| 3841 | |
| 3842 | case MEGAIOC_QADAPINFO: /* Get adapter information */ |
| 3843 | uioc->opcode = GET_ADAP_INFO; |
| 3844 | uioc->adapno = uioc_mimd.ui.fcs.adapno; |
| 3845 | uioc->uioc_uaddr = uioc_mimd.data; |
| 3846 | break; |
| 3847 | |
| 3848 | default: |
| 3849 | return(-EINVAL); |
| 3850 | } |
| 3851 | |
| 3852 | break; |
| 3853 | |
| 3854 | |
| 3855 | case 0x81: |
| 3856 | |
| 3857 | uioc->opcode = MBOX_CMD; |
| 3858 | uioc->adapno = uioc_mimd.ui.fcs.adapno; |
| 3859 | |
| 3860 | memcpy(uioc->uioc_rmbox, uioc_mimd.mbox, 18); |
| 3861 | |
| 3862 | uioc->xferlen = uioc_mimd.ui.fcs.length; |
| 3863 | |
| 3864 | if( uioc_mimd.outlen ) uioc->flags = UIOC_RD; |
| 3865 | if( uioc_mimd.inlen ) uioc->flags |= UIOC_WR; |
| 3866 | |
| 3867 | break; |
| 3868 | |
| 3869 | case 0x80: |
| 3870 | |
| 3871 | uioc->opcode = MBOX_CMD; |
| 3872 | uioc->adapno = uioc_mimd.ui.fcs.adapno; |
| 3873 | |
| 3874 | memcpy(uioc->uioc_rmbox, uioc_mimd.mbox, 18); |
| 3875 | |
| 3876 | /* |
| 3877 | * Choose the xferlen bigger of input and output data |
| 3878 | */ |
| 3879 | uioc->xferlen = uioc_mimd.outlen > uioc_mimd.inlen ? |
| 3880 | uioc_mimd.outlen : uioc_mimd.inlen; |
| 3881 | |
| 3882 | if( uioc_mimd.outlen ) uioc->flags = UIOC_RD; |
| 3883 | if( uioc_mimd.inlen ) uioc->flags |= UIOC_WR; |
| 3884 | |
| 3885 | break; |
| 3886 | |
| 3887 | default: |
| 3888 | return (-EINVAL); |
| 3889 | |
| 3890 | } |
| 3891 | |
| 3892 | return 0; |
| 3893 | } |
| 3894 | |
| 3895 | /* |
| 3896 | * mega_n_to_m() |
| 3897 | * @arg - user address |
| 3898 | * @mc - mailbox command |
| 3899 | * |
| 3900 | * Updates the status information to the application, depending on application |
| 3901 | * conforms to older mimd ioctl interface or newer NIT ioctl interface |
| 3902 | */ |
| 3903 | static int |
| 3904 | mega_n_to_m(void __user *arg, megacmd_t *mc) |
| 3905 | { |
| 3906 | nitioctl_t __user *uiocp; |
| 3907 | megacmd_t __user *umc; |
| 3908 | mega_passthru __user *upthru; |
| 3909 | struct uioctl_t __user *uioc_mimd; |
| 3910 | char signature[8] = {0}; |
| 3911 | |
| 3912 | /* |
| 3913 | * check is the application conforms to NIT. |
| 3914 | */ |
| 3915 | if( copy_from_user(signature, arg, 7) ) |
| 3916 | return -EFAULT; |
| 3917 | |
| 3918 | if( memcmp(signature, "MEGANIT", 7) == 0 ) { |
| 3919 | |
| 3920 | uiocp = arg; |
| 3921 | |
| 3922 | if( put_user(mc->status, (u8 __user *)&MBOX_P(uiocp)->status) ) |
| 3923 | return (-EFAULT); |
| 3924 | |
| 3925 | if( mc->cmd == MEGA_MBOXCMD_PASSTHRU ) { |
| 3926 | |
| 3927 | umc = MBOX_P(uiocp); |
| 3928 | |
| 3929 | if (get_user(upthru, (mega_passthru __user * __user *)&umc->xferaddr)) |
| 3930 | return -EFAULT; |
| 3931 | |
| 3932 | if( put_user(mc->status, (u8 __user *)&upthru->scsistatus)) |
| 3933 | return (-EFAULT); |
| 3934 | } |
| 3935 | } |
| 3936 | else { |
| 3937 | uioc_mimd = arg; |
| 3938 | |
| 3939 | if( put_user(mc->status, (u8 __user *)&uioc_mimd->mbox[17]) ) |
| 3940 | return (-EFAULT); |
| 3941 | |
| 3942 | if( mc->cmd == MEGA_MBOXCMD_PASSTHRU ) { |
| 3943 | |
| 3944 | umc = (megacmd_t __user *)uioc_mimd->mbox; |
| 3945 | |
| 3946 | if (get_user(upthru, (mega_passthru __user * __user *)&umc->xferaddr)) |
| 3947 | return (-EFAULT); |
| 3948 | |
| 3949 | if( put_user(mc->status, (u8 __user *)&upthru->scsistatus) ) |
| 3950 | return (-EFAULT); |
| 3951 | } |
| 3952 | } |
| 3953 | |
| 3954 | return 0; |
| 3955 | } |
| 3956 | |
| 3957 | |
| 3958 | /* |
| 3959 | * MEGARAID 'FW' commands. |
| 3960 | */ |
| 3961 | |
| 3962 | /** |
| 3963 | * mega_is_bios_enabled() |
| 3964 | * @adapter - pointer to our soft state |
| 3965 | * |
| 3966 | * issue command to find out if the BIOS is enabled for this controller |
| 3967 | */ |
| 3968 | static int |
| 3969 | mega_is_bios_enabled(adapter_t *adapter) |
| 3970 | { |
| 3971 | unsigned char raw_mbox[sizeof(struct mbox_out)]; |
| 3972 | mbox_t *mbox; |
| 3973 | int ret; |
| 3974 | |
| 3975 | mbox = (mbox_t *)raw_mbox; |
| 3976 | |
| 3977 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); |
| 3978 | |
| 3979 | memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE); |
| 3980 | |
| 3981 | mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle; |
| 3982 | |
| 3983 | raw_mbox[0] = IS_BIOS_ENABLED; |
| 3984 | raw_mbox[2] = GET_BIOS; |
| 3985 | |
| 3986 | |
| 3987 | ret = issue_scb_block(adapter, raw_mbox); |
| 3988 | |
| 3989 | return *(char *)adapter->mega_buffer; |
| 3990 | } |
| 3991 | |
| 3992 | |
| 3993 | /** |
| 3994 | * mega_enum_raid_scsi() |
| 3995 | * @adapter - pointer to our soft state |
| 3996 | * |
| 3997 | * Find out what channels are RAID/SCSI. This information is used to |
| 3998 | * differentiate the virtual channels and physical channels and to support |
| 3999 | * ROMB feature and non-disk devices. |
| 4000 | */ |
| 4001 | static void |
| 4002 | mega_enum_raid_scsi(adapter_t *adapter) |
| 4003 | { |
| 4004 | unsigned char raw_mbox[sizeof(struct mbox_out)]; |
| 4005 | mbox_t *mbox; |
| 4006 | int i; |
| 4007 | |
| 4008 | mbox = (mbox_t *)raw_mbox; |
| 4009 | |
| 4010 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); |
| 4011 | |
| 4012 | /* |
| 4013 | * issue command to find out what channels are raid/scsi |
| 4014 | */ |
| 4015 | raw_mbox[0] = CHNL_CLASS; |
| 4016 | raw_mbox[2] = GET_CHNL_CLASS; |
| 4017 | |
| 4018 | memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE); |
| 4019 | |
| 4020 | mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle; |
| 4021 | |
| 4022 | /* |
| 4023 | * Non-ROMB firmware fail this command, so all channels |
| 4024 | * must be shown RAID |
| 4025 | */ |
| 4026 | adapter->mega_ch_class = 0xFF; |
| 4027 | |
| 4028 | if(!issue_scb_block(adapter, raw_mbox)) { |
| 4029 | adapter->mega_ch_class = *((char *)adapter->mega_buffer); |
| 4030 | |
| 4031 | } |
| 4032 | |
| 4033 | for( i = 0; i < adapter->product_info.nchannels; i++ ) { |
| 4034 | if( (adapter->mega_ch_class >> i) & 0x01 ) { |
| 4035 | printk(KERN_INFO "megaraid: channel[%d] is raid.\n", |
| 4036 | i); |
| 4037 | } |
| 4038 | else { |
| 4039 | printk(KERN_INFO "megaraid: channel[%d] is scsi.\n", |
| 4040 | i); |
| 4041 | } |
| 4042 | } |
| 4043 | |
| 4044 | return; |
| 4045 | } |
| 4046 | |
| 4047 | |
| 4048 | /** |
| 4049 | * mega_get_boot_drv() |
| 4050 | * @adapter - pointer to our soft state |
| 4051 | * |
| 4052 | * Find out which device is the boot device. Note, any logical drive or any |
| 4053 | * phyical device (e.g., a CDROM) can be designated as a boot device. |
| 4054 | */ |
| 4055 | static void |
| 4056 | mega_get_boot_drv(adapter_t *adapter) |
| 4057 | { |
| 4058 | struct private_bios_data *prv_bios_data; |
| 4059 | unsigned char raw_mbox[sizeof(struct mbox_out)]; |
| 4060 | mbox_t *mbox; |
| 4061 | u16 cksum = 0; |
| 4062 | u8 *cksum_p; |
| 4063 | u8 boot_pdrv; |
| 4064 | int i; |
| 4065 | |
| 4066 | mbox = (mbox_t *)raw_mbox; |
| 4067 | |
| 4068 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); |
| 4069 | |
| 4070 | raw_mbox[0] = BIOS_PVT_DATA; |
| 4071 | raw_mbox[2] = GET_BIOS_PVT_DATA; |
| 4072 | |
| 4073 | memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE); |
| 4074 | |
| 4075 | mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle; |
| 4076 | |
| 4077 | adapter->boot_ldrv_enabled = 0; |
| 4078 | adapter->boot_ldrv = 0; |
| 4079 | |
| 4080 | adapter->boot_pdrv_enabled = 0; |
| 4081 | adapter->boot_pdrv_ch = 0; |
| 4082 | adapter->boot_pdrv_tgt = 0; |
| 4083 | |
| 4084 | if(issue_scb_block(adapter, raw_mbox) == 0) { |
| 4085 | prv_bios_data = |
| 4086 | (struct private_bios_data *)adapter->mega_buffer; |
| 4087 | |
| 4088 | cksum = 0; |
| 4089 | cksum_p = (char *)prv_bios_data; |
| 4090 | for (i = 0; i < 14; i++ ) { |
| 4091 | cksum += (u16)(*cksum_p++); |
| 4092 | } |
| 4093 | |
| 4094 | if (prv_bios_data->cksum == (u16)(0-cksum) ) { |
| 4095 | |
| 4096 | /* |
| 4097 | * If MSB is set, a physical drive is set as boot |
| 4098 | * device |
| 4099 | */ |
| 4100 | if( prv_bios_data->boot_drv & 0x80 ) { |
| 4101 | adapter->boot_pdrv_enabled = 1; |
| 4102 | boot_pdrv = prv_bios_data->boot_drv & 0x7F; |
| 4103 | adapter->boot_pdrv_ch = boot_pdrv / 16; |
| 4104 | adapter->boot_pdrv_tgt = boot_pdrv % 16; |
| 4105 | } |
| 4106 | else { |
| 4107 | adapter->boot_ldrv_enabled = 1; |
| 4108 | adapter->boot_ldrv = prv_bios_data->boot_drv; |
| 4109 | } |
| 4110 | } |
| 4111 | } |
| 4112 | |
| 4113 | } |
| 4114 | |
| 4115 | /** |
| 4116 | * mega_support_random_del() |
| 4117 | * @adapter - pointer to our soft state |
| 4118 | * |
| 4119 | * Find out if this controller supports random deletion and addition of |
| 4120 | * logical drives |
| 4121 | */ |
| 4122 | static int |
| 4123 | mega_support_random_del(adapter_t *adapter) |
| 4124 | { |
| 4125 | unsigned char raw_mbox[sizeof(struct mbox_out)]; |
| 4126 | mbox_t *mbox; |
| 4127 | int rval; |
| 4128 | |
| 4129 | mbox = (mbox_t *)raw_mbox; |
| 4130 | |
| 4131 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); |
| 4132 | |
| 4133 | /* |
| 4134 | * issue command |
| 4135 | */ |
| 4136 | raw_mbox[0] = FC_DEL_LOGDRV; |
| 4137 | raw_mbox[2] = OP_SUP_DEL_LOGDRV; |
| 4138 | |
| 4139 | rval = issue_scb_block(adapter, raw_mbox); |
| 4140 | |
| 4141 | return !rval; |
| 4142 | } |
| 4143 | |
| 4144 | |
| 4145 | /** |
| 4146 | * mega_support_ext_cdb() |
| 4147 | * @adapter - pointer to our soft state |
| 4148 | * |
| 4149 | * Find out if this firmware support cdblen > 10 |
| 4150 | */ |
| 4151 | static int |
| 4152 | mega_support_ext_cdb(adapter_t *adapter) |
| 4153 | { |
| 4154 | unsigned char raw_mbox[sizeof(struct mbox_out)]; |
| 4155 | mbox_t *mbox; |
| 4156 | int rval; |
| 4157 | |
| 4158 | mbox = (mbox_t *)raw_mbox; |
| 4159 | |
| 4160 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); |
| 4161 | /* |
| 4162 | * issue command to find out if controller supports extended CDBs. |
| 4163 | */ |
| 4164 | raw_mbox[0] = 0xA4; |
| 4165 | raw_mbox[2] = 0x16; |
| 4166 | |
| 4167 | rval = issue_scb_block(adapter, raw_mbox); |
| 4168 | |
| 4169 | return !rval; |
| 4170 | } |
| 4171 | |
| 4172 | |
| 4173 | /** |
| 4174 | * mega_del_logdrv() |
| 4175 | * @adapter - pointer to our soft state |
| 4176 | * @logdrv - logical drive to be deleted |
| 4177 | * |
| 4178 | * Delete the specified logical drive. It is the responsibility of the user |
| 4179 | * app to let the OS know about this operation. |
| 4180 | */ |
| 4181 | static int |
| 4182 | mega_del_logdrv(adapter_t *adapter, int logdrv) |
| 4183 | { |
| 4184 | unsigned long flags; |
| 4185 | scb_t *scb; |
| 4186 | int rval; |
| 4187 | |
| 4188 | /* |
| 4189 | * Stop sending commands to the controller, queue them internally. |
| 4190 | * When deletion is complete, ISR will flush the queue. |
| 4191 | */ |
| 4192 | atomic_set(&adapter->quiescent, 1); |
| 4193 | |
| 4194 | /* |
| 4195 | * Wait till all the issued commands are complete and there are no |
| 4196 | * commands in the pending queue |
| 4197 | */ |
| 4198 | while (atomic_read(&adapter->pend_cmds) > 0 || |
| 4199 | !list_empty(&adapter->pending_list)) |
| 4200 | msleep(1000); /* sleep for 1s */ |
| 4201 | |
| 4202 | rval = mega_do_del_logdrv(adapter, logdrv); |
| 4203 | |
| 4204 | spin_lock_irqsave(&adapter->lock, flags); |
| 4205 | |
| 4206 | /* |
| 4207 | * If delete operation was successful, add 0x80 to the logical drive |
| 4208 | * ids for commands in the pending queue. |
| 4209 | */ |
| 4210 | if (adapter->read_ldidmap) { |
| 4211 | struct list_head *pos; |
| 4212 | list_for_each(pos, &adapter->pending_list) { |
| 4213 | scb = list_entry(pos, scb_t, list); |
| 4214 | if (scb->pthru->logdrv < 0x80 ) |
| 4215 | scb->pthru->logdrv += 0x80; |
| 4216 | } |
| 4217 | } |
| 4218 | |
| 4219 | atomic_set(&adapter->quiescent, 0); |
| 4220 | |
| 4221 | mega_runpendq(adapter); |
| 4222 | |
| 4223 | spin_unlock_irqrestore(&adapter->lock, flags); |
| 4224 | |
| 4225 | return rval; |
| 4226 | } |
| 4227 | |
| 4228 | |
| 4229 | static int |
| 4230 | mega_do_del_logdrv(adapter_t *adapter, int logdrv) |
| 4231 | { |
| 4232 | megacmd_t mc; |
| 4233 | int rval; |
| 4234 | |
| 4235 | memset( &mc, 0, sizeof(megacmd_t)); |
| 4236 | |
| 4237 | mc.cmd = FC_DEL_LOGDRV; |
| 4238 | mc.opcode = OP_DEL_LOGDRV; |
| 4239 | mc.subopcode = logdrv; |
| 4240 | |
Christoph Hellwig | cb0258a | 2005-10-31 20:12:07 +0100 | [diff] [blame] | 4241 | rval = mega_internal_command(adapter, &mc, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4242 | |
| 4243 | /* log this event */ |
| 4244 | if(rval) { |
| 4245 | printk(KERN_WARNING "megaraid: Delete LD-%d failed.", logdrv); |
| 4246 | return rval; |
| 4247 | } |
| 4248 | |
| 4249 | /* |
| 4250 | * After deleting first logical drive, the logical drives must be |
| 4251 | * addressed by adding 0x80 to the logical drive id. |
| 4252 | */ |
| 4253 | adapter->read_ldidmap = 1; |
| 4254 | |
| 4255 | return rval; |
| 4256 | } |
| 4257 | |
| 4258 | |
| 4259 | /** |
| 4260 | * mega_get_max_sgl() |
| 4261 | * @adapter - pointer to our soft state |
| 4262 | * |
| 4263 | * Find out the maximum number of scatter-gather elements supported by this |
| 4264 | * version of the firmware |
| 4265 | */ |
| 4266 | static void |
| 4267 | mega_get_max_sgl(adapter_t *adapter) |
| 4268 | { |
| 4269 | unsigned char raw_mbox[sizeof(struct mbox_out)]; |
| 4270 | mbox_t *mbox; |
| 4271 | |
| 4272 | mbox = (mbox_t *)raw_mbox; |
| 4273 | |
| 4274 | memset(mbox, 0, sizeof(raw_mbox)); |
| 4275 | |
| 4276 | memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE); |
| 4277 | |
| 4278 | mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle; |
| 4279 | |
| 4280 | raw_mbox[0] = MAIN_MISC_OPCODE; |
| 4281 | raw_mbox[2] = GET_MAX_SG_SUPPORT; |
| 4282 | |
| 4283 | |
| 4284 | if( issue_scb_block(adapter, raw_mbox) ) { |
| 4285 | /* |
| 4286 | * f/w does not support this command. Choose the default value |
| 4287 | */ |
| 4288 | adapter->sglen = MIN_SGLIST; |
| 4289 | } |
| 4290 | else { |
| 4291 | adapter->sglen = *((char *)adapter->mega_buffer); |
| 4292 | |
| 4293 | /* |
| 4294 | * Make sure this is not more than the resources we are |
| 4295 | * planning to allocate |
| 4296 | */ |
| 4297 | if ( adapter->sglen > MAX_SGLIST ) |
| 4298 | adapter->sglen = MAX_SGLIST; |
| 4299 | } |
| 4300 | |
| 4301 | return; |
| 4302 | } |
| 4303 | |
| 4304 | |
| 4305 | /** |
| 4306 | * mega_support_cluster() |
| 4307 | * @adapter - pointer to our soft state |
| 4308 | * |
| 4309 | * Find out if this firmware support cluster calls. |
| 4310 | */ |
| 4311 | static int |
| 4312 | mega_support_cluster(adapter_t *adapter) |
| 4313 | { |
| 4314 | unsigned char raw_mbox[sizeof(struct mbox_out)]; |
| 4315 | mbox_t *mbox; |
| 4316 | |
| 4317 | mbox = (mbox_t *)raw_mbox; |
| 4318 | |
| 4319 | memset(mbox, 0, sizeof(raw_mbox)); |
| 4320 | |
| 4321 | memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE); |
| 4322 | |
| 4323 | mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle; |
| 4324 | |
| 4325 | /* |
| 4326 | * Try to get the initiator id. This command will succeed iff the |
| 4327 | * clustering is available on this HBA. |
| 4328 | */ |
| 4329 | raw_mbox[0] = MEGA_GET_TARGET_ID; |
| 4330 | |
| 4331 | if( issue_scb_block(adapter, raw_mbox) == 0 ) { |
| 4332 | |
| 4333 | /* |
| 4334 | * Cluster support available. Get the initiator target id. |
| 4335 | * Tell our id to mid-layer too. |
| 4336 | */ |
| 4337 | adapter->this_id = *(u32 *)adapter->mega_buffer; |
| 4338 | adapter->host->this_id = adapter->this_id; |
| 4339 | |
| 4340 | return 1; |
| 4341 | } |
| 4342 | |
| 4343 | return 0; |
| 4344 | } |
| 4345 | |
| 4346 | |
| 4347 | /** |
| 4348 | * mega_adapinq() |
| 4349 | * @adapter - pointer to our soft state |
| 4350 | * @dma_handle - DMA address of the buffer |
| 4351 | * |
| 4352 | * Issue internal comamnds while interrupts are available. |
| 4353 | * We only issue direct mailbox commands from within the driver. ioctl() |
| 4354 | * interface using these routines can issue passthru commands. |
| 4355 | */ |
| 4356 | static int |
| 4357 | mega_adapinq(adapter_t *adapter, dma_addr_t dma_handle) |
| 4358 | { |
| 4359 | megacmd_t mc; |
| 4360 | |
| 4361 | memset(&mc, 0, sizeof(megacmd_t)); |
| 4362 | |
| 4363 | if( adapter->flag & BOARD_40LD ) { |
| 4364 | mc.cmd = FC_NEW_CONFIG; |
| 4365 | mc.opcode = NC_SUBOP_ENQUIRY3; |
| 4366 | mc.subopcode = ENQ3_GET_SOLICITED_FULL; |
| 4367 | } |
| 4368 | else { |
| 4369 | mc.cmd = MEGA_MBOXCMD_ADPEXTINQ; |
| 4370 | } |
| 4371 | |
| 4372 | mc.xferaddr = (u32)dma_handle; |
| 4373 | |
Christoph Hellwig | cb0258a | 2005-10-31 20:12:07 +0100 | [diff] [blame] | 4374 | if ( mega_internal_command(adapter, &mc, NULL) != 0 ) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4375 | return -1; |
| 4376 | } |
| 4377 | |
| 4378 | return 0; |
| 4379 | } |
| 4380 | |
| 4381 | |
| 4382 | /** mega_internal_dev_inquiry() |
| 4383 | * @adapter - pointer to our soft state |
| 4384 | * @ch - channel for this device |
| 4385 | * @tgt - ID of this device |
| 4386 | * @buf_dma_handle - DMA address of the buffer |
| 4387 | * |
| 4388 | * Issue the scsi inquiry for the specified device. |
| 4389 | */ |
| 4390 | static int |
| 4391 | mega_internal_dev_inquiry(adapter_t *adapter, u8 ch, u8 tgt, |
| 4392 | dma_addr_t buf_dma_handle) |
| 4393 | { |
| 4394 | mega_passthru *pthru; |
| 4395 | dma_addr_t pthru_dma_handle; |
| 4396 | megacmd_t mc; |
| 4397 | int rval; |
| 4398 | struct pci_dev *pdev; |
| 4399 | |
| 4400 | |
| 4401 | /* |
| 4402 | * For all internal commands, the buffer must be allocated in <4GB |
| 4403 | * address range |
| 4404 | */ |
| 4405 | if( make_local_pdev(adapter, &pdev) != 0 ) return -1; |
| 4406 | |
| 4407 | pthru = pci_alloc_consistent(pdev, sizeof(mega_passthru), |
| 4408 | &pthru_dma_handle); |
| 4409 | |
| 4410 | if( pthru == NULL ) { |
| 4411 | free_local_pdev(pdev); |
| 4412 | return -1; |
| 4413 | } |
| 4414 | |
| 4415 | pthru->timeout = 2; |
| 4416 | pthru->ars = 1; |
| 4417 | pthru->reqsenselen = 14; |
| 4418 | pthru->islogical = 0; |
| 4419 | |
| 4420 | pthru->channel = (adapter->flag & BOARD_40LD) ? 0 : ch; |
| 4421 | |
| 4422 | pthru->target = (adapter->flag & BOARD_40LD) ? (ch << 4)|tgt : tgt; |
| 4423 | |
| 4424 | pthru->cdblen = 6; |
| 4425 | |
| 4426 | pthru->cdb[0] = INQUIRY; |
| 4427 | pthru->cdb[1] = 0; |
| 4428 | pthru->cdb[2] = 0; |
| 4429 | pthru->cdb[3] = 0; |
| 4430 | pthru->cdb[4] = 255; |
| 4431 | pthru->cdb[5] = 0; |
| 4432 | |
| 4433 | |
| 4434 | pthru->dataxferaddr = (u32)buf_dma_handle; |
| 4435 | pthru->dataxferlen = 256; |
| 4436 | |
| 4437 | memset(&mc, 0, sizeof(megacmd_t)); |
| 4438 | |
| 4439 | mc.cmd = MEGA_MBOXCMD_PASSTHRU; |
| 4440 | mc.xferaddr = (u32)pthru_dma_handle; |
| 4441 | |
Christoph Hellwig | cb0258a | 2005-10-31 20:12:07 +0100 | [diff] [blame] | 4442 | rval = mega_internal_command(adapter, &mc, pthru); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4443 | |
| 4444 | pci_free_consistent(pdev, sizeof(mega_passthru), pthru, |
| 4445 | pthru_dma_handle); |
| 4446 | |
| 4447 | free_local_pdev(pdev); |
| 4448 | |
| 4449 | return rval; |
| 4450 | } |
| 4451 | |
| 4452 | |
| 4453 | /** |
| 4454 | * mega_internal_command() |
| 4455 | * @adapter - pointer to our soft state |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4456 | * @mc - the mailbox command |
| 4457 | * @pthru - Passthru structure for DCDB commands |
| 4458 | * |
| 4459 | * Issue the internal commands in interrupt mode. |
| 4460 | * The last argument is the address of the passthru structure if the command |
| 4461 | * to be fired is a passthru command |
| 4462 | * |
| 4463 | * lockscope specifies whether the caller has already acquired the lock. Of |
| 4464 | * course, the caller must know which lock we are talking about. |
| 4465 | * |
| 4466 | * Note: parameter 'pthru' is null for non-passthru commands. |
| 4467 | */ |
| 4468 | static int |
Christoph Hellwig | cb0258a | 2005-10-31 20:12:07 +0100 | [diff] [blame] | 4469 | mega_internal_command(adapter_t *adapter, megacmd_t *mc, mega_passthru *pthru) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4470 | { |
| 4471 | Scsi_Cmnd *scmd; |
| 4472 | struct scsi_device *sdev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4473 | scb_t *scb; |
| 4474 | int rval; |
| 4475 | |
| 4476 | /* |
| 4477 | * The internal commands share one command id and hence are |
| 4478 | * serialized. This is so because we want to reserve maximum number of |
| 4479 | * available command ids for the I/O commands. |
| 4480 | */ |
Arjan van de Ven | 0b95067 | 2006-01-11 13:16:10 +0100 | [diff] [blame] | 4481 | mutex_lock(&adapter->int_mtx); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4482 | |
| 4483 | scb = &adapter->int_scb; |
| 4484 | memset(scb, 0, sizeof(scb_t)); |
| 4485 | |
| 4486 | scmd = &adapter->int_scmd; |
| 4487 | memset(scmd, 0, sizeof(Scsi_Cmnd)); |
| 4488 | |
| 4489 | sdev = kmalloc(sizeof(struct scsi_device), GFP_KERNEL); |
| 4490 | memset(sdev, 0, sizeof(struct scsi_device)); |
| 4491 | scmd->device = sdev; |
| 4492 | |
| 4493 | scmd->device->host = adapter->host; |
Christoph Hellwig | 5d5ff44 | 2006-06-03 13:21:13 +0200 | [diff] [blame] | 4494 | scmd->request_buffer = (void *)scb; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4495 | scmd->cmnd[0] = MEGA_INTERNAL_CMD; |
| 4496 | |
| 4497 | scb->state |= SCB_ACTIVE; |
| 4498 | scb->cmd = scmd; |
| 4499 | |
| 4500 | memcpy(scb->raw_mbox, mc, sizeof(megacmd_t)); |
| 4501 | |
| 4502 | /* |
| 4503 | * Is it a passthru command |
| 4504 | */ |
| 4505 | if( mc->cmd == MEGA_MBOXCMD_PASSTHRU ) { |
| 4506 | |
| 4507 | scb->pthru = pthru; |
| 4508 | } |
| 4509 | |
| 4510 | scb->idx = CMDID_INT_CMDS; |
| 4511 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4512 | megaraid_queue(scmd, mega_internal_done); |
| 4513 | |
Christoph Hellwig | 8d115f8 | 2005-06-19 13:42:05 +0200 | [diff] [blame] | 4514 | wait_for_completion(&adapter->int_waitq); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4515 | |
| 4516 | rval = scmd->result; |
| 4517 | mc->status = scmd->result; |
| 4518 | kfree(sdev); |
| 4519 | |
| 4520 | /* |
| 4521 | * Print a debug message for all failed commands. Applications can use |
| 4522 | * this information. |
| 4523 | */ |
| 4524 | if( scmd->result && trace_level ) { |
| 4525 | printk("megaraid: cmd [%x, %x, %x] status:[%x]\n", |
| 4526 | mc->cmd, mc->opcode, mc->subopcode, scmd->result); |
| 4527 | } |
| 4528 | |
Arjan van de Ven | 0b95067 | 2006-01-11 13:16:10 +0100 | [diff] [blame] | 4529 | mutex_unlock(&adapter->int_mtx); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4530 | |
| 4531 | return rval; |
| 4532 | } |
| 4533 | |
| 4534 | |
| 4535 | /** |
| 4536 | * mega_internal_done() |
| 4537 | * @scmd - internal scsi command |
| 4538 | * |
| 4539 | * Callback routine for internal commands. |
| 4540 | */ |
| 4541 | static void |
| 4542 | mega_internal_done(Scsi_Cmnd *scmd) |
| 4543 | { |
| 4544 | adapter_t *adapter; |
| 4545 | |
| 4546 | adapter = (adapter_t *)scmd->device->host->hostdata; |
| 4547 | |
Christoph Hellwig | 8d115f8 | 2005-06-19 13:42:05 +0200 | [diff] [blame] | 4548 | complete(&adapter->int_waitq); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4549 | |
| 4550 | } |
| 4551 | |
| 4552 | |
| 4553 | static struct scsi_host_template megaraid_template = { |
| 4554 | .module = THIS_MODULE, |
| 4555 | .name = "MegaRAID", |
Ju, Seokmann | 3492b32 | 2005-11-17 13:13:31 -0500 | [diff] [blame] | 4556 | .proc_name = "megaraid_legacy", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4557 | .info = megaraid_info, |
| 4558 | .queuecommand = megaraid_queue, |
| 4559 | .bios_param = megaraid_biosparam, |
| 4560 | .max_sectors = MAX_SECTORS_PER_IO, |
| 4561 | .can_queue = MAX_COMMANDS, |
| 4562 | .this_id = DEFAULT_INITIATOR_ID, |
| 4563 | .sg_tablesize = MAX_SGLIST, |
| 4564 | .cmd_per_lun = DEF_CMD_PER_LUN, |
| 4565 | .use_clustering = ENABLE_CLUSTERING, |
| 4566 | .eh_abort_handler = megaraid_abort, |
| 4567 | .eh_device_reset_handler = megaraid_reset, |
| 4568 | .eh_bus_reset_handler = megaraid_reset, |
| 4569 | .eh_host_reset_handler = megaraid_reset, |
| 4570 | }; |
| 4571 | |
| 4572 | static int __devinit |
| 4573 | megaraid_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) |
| 4574 | { |
| 4575 | struct Scsi_Host *host; |
| 4576 | adapter_t *adapter; |
| 4577 | unsigned long mega_baseport, tbase, flag = 0; |
| 4578 | u16 subsysid, subsysvid; |
| 4579 | u8 pci_bus, pci_dev_func; |
| 4580 | int irq, i, j; |
| 4581 | int error = -ENODEV; |
| 4582 | |
| 4583 | if (pci_enable_device(pdev)) |
| 4584 | goto out; |
| 4585 | pci_set_master(pdev); |
| 4586 | |
| 4587 | pci_bus = pdev->bus->number; |
| 4588 | pci_dev_func = pdev->devfn; |
| 4589 | |
| 4590 | /* |
| 4591 | * The megaraid3 stuff reports the ID of the Intel part which is not |
| 4592 | * remotely specific to the megaraid |
| 4593 | */ |
| 4594 | if (pdev->vendor == PCI_VENDOR_ID_INTEL) { |
| 4595 | u16 magic; |
| 4596 | /* |
| 4597 | * Don't fall over the Compaq management cards using the same |
| 4598 | * PCI identifier |
| 4599 | */ |
| 4600 | if (pdev->subsystem_vendor == PCI_VENDOR_ID_COMPAQ && |
| 4601 | pdev->subsystem_device == 0xC000) |
| 4602 | return -ENODEV; |
| 4603 | /* Now check the magic signature byte */ |
| 4604 | pci_read_config_word(pdev, PCI_CONF_AMISIG, &magic); |
| 4605 | if (magic != HBA_SIGNATURE_471 && magic != HBA_SIGNATURE) |
| 4606 | return -ENODEV; |
| 4607 | /* Ok it is probably a megaraid */ |
| 4608 | } |
| 4609 | |
| 4610 | /* |
| 4611 | * For these vendor and device ids, signature offsets are not |
| 4612 | * valid and 64 bit is implicit |
| 4613 | */ |
| 4614 | if (id->driver_data & BOARD_64BIT) |
| 4615 | flag |= BOARD_64BIT; |
| 4616 | else { |
| 4617 | u32 magic64; |
| 4618 | |
| 4619 | pci_read_config_dword(pdev, PCI_CONF_AMISIG64, &magic64); |
| 4620 | if (magic64 == HBA_SIGNATURE_64BIT) |
| 4621 | flag |= BOARD_64BIT; |
| 4622 | } |
| 4623 | |
| 4624 | subsysvid = pdev->subsystem_vendor; |
| 4625 | subsysid = pdev->subsystem_device; |
| 4626 | |
| 4627 | printk(KERN_NOTICE "megaraid: found 0x%4.04x:0x%4.04x:bus %d:", |
| 4628 | id->vendor, id->device, pci_bus); |
| 4629 | |
| 4630 | printk("slot %d:func %d\n", |
| 4631 | PCI_SLOT(pci_dev_func), PCI_FUNC(pci_dev_func)); |
| 4632 | |
| 4633 | /* Read the base port and IRQ from PCI */ |
| 4634 | mega_baseport = pci_resource_start(pdev, 0); |
| 4635 | irq = pdev->irq; |
| 4636 | |
| 4637 | tbase = mega_baseport; |
| 4638 | if (pci_resource_flags(pdev, 0) & IORESOURCE_MEM) { |
| 4639 | flag |= BOARD_MEMMAP; |
| 4640 | |
| 4641 | if (!request_mem_region(mega_baseport, 128, "megaraid")) { |
| 4642 | printk(KERN_WARNING "megaraid: mem region busy!\n"); |
| 4643 | goto out_disable_device; |
| 4644 | } |
| 4645 | |
| 4646 | mega_baseport = (unsigned long)ioremap(mega_baseport, 128); |
| 4647 | if (!mega_baseport) { |
| 4648 | printk(KERN_WARNING |
| 4649 | "megaraid: could not map hba memory\n"); |
| 4650 | goto out_release_region; |
| 4651 | } |
| 4652 | } else { |
| 4653 | flag |= BOARD_IOMAP; |
| 4654 | mega_baseport += 0x10; |
| 4655 | |
| 4656 | if (!request_region(mega_baseport, 16, "megaraid")) |
| 4657 | goto out_disable_device; |
| 4658 | } |
| 4659 | |
| 4660 | /* Initialize SCSI Host structure */ |
| 4661 | host = scsi_host_alloc(&megaraid_template, sizeof(adapter_t)); |
| 4662 | if (!host) |
| 4663 | goto out_iounmap; |
| 4664 | |
| 4665 | adapter = (adapter_t *)host->hostdata; |
| 4666 | memset(adapter, 0, sizeof(adapter_t)); |
| 4667 | |
| 4668 | printk(KERN_NOTICE |
| 4669 | "scsi%d:Found MegaRAID controller at 0x%lx, IRQ:%d\n", |
| 4670 | host->host_no, mega_baseport, irq); |
| 4671 | |
| 4672 | adapter->base = mega_baseport; |
| 4673 | |
| 4674 | INIT_LIST_HEAD(&adapter->free_list); |
| 4675 | INIT_LIST_HEAD(&adapter->pending_list); |
| 4676 | INIT_LIST_HEAD(&adapter->completed_list); |
| 4677 | |
| 4678 | adapter->flag = flag; |
| 4679 | spin_lock_init(&adapter->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4680 | |
| 4681 | host->cmd_per_lun = max_cmd_per_lun; |
| 4682 | host->max_sectors = max_sectors_per_io; |
| 4683 | |
| 4684 | adapter->dev = pdev; |
| 4685 | adapter->host = host; |
| 4686 | |
| 4687 | adapter->host->irq = irq; |
| 4688 | |
| 4689 | if (flag & BOARD_MEMMAP) |
| 4690 | adapter->host->base = tbase; |
| 4691 | else { |
| 4692 | adapter->host->io_port = tbase; |
| 4693 | adapter->host->n_io_port = 16; |
| 4694 | } |
| 4695 | |
| 4696 | adapter->host->unique_id = (pci_bus << 8) | pci_dev_func; |
| 4697 | |
| 4698 | /* |
| 4699 | * Allocate buffer to issue internal commands. |
| 4700 | */ |
| 4701 | adapter->mega_buffer = pci_alloc_consistent(adapter->dev, |
| 4702 | MEGA_BUFFER_SIZE, &adapter->buf_dma_handle); |
| 4703 | if (!adapter->mega_buffer) { |
| 4704 | printk(KERN_WARNING "megaraid: out of RAM.\n"); |
| 4705 | goto out_host_put; |
| 4706 | } |
| 4707 | |
| 4708 | adapter->scb_list = kmalloc(sizeof(scb_t) * MAX_COMMANDS, GFP_KERNEL); |
| 4709 | if (!adapter->scb_list) { |
| 4710 | printk(KERN_WARNING "megaraid: out of RAM.\n"); |
| 4711 | goto out_free_cmd_buffer; |
| 4712 | } |
| 4713 | |
| 4714 | if (request_irq(irq, (adapter->flag & BOARD_MEMMAP) ? |
| 4715 | megaraid_isr_memmapped : megaraid_isr_iomapped, |
Thomas Gleixner | 1d6f359 | 2006-07-01 19:29:42 -0700 | [diff] [blame] | 4716 | IRQF_SHARED, "megaraid", adapter)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4717 | printk(KERN_WARNING |
| 4718 | "megaraid: Couldn't register IRQ %d!\n", irq); |
| 4719 | goto out_free_scb_list; |
| 4720 | } |
| 4721 | |
| 4722 | if (mega_setup_mailbox(adapter)) |
| 4723 | goto out_free_irq; |
| 4724 | |
| 4725 | if (mega_query_adapter(adapter)) |
| 4726 | goto out_free_mbox; |
| 4727 | |
| 4728 | /* |
| 4729 | * Have checks for some buggy f/w |
| 4730 | */ |
| 4731 | if ((subsysid == 0x1111) && (subsysvid == 0x1111)) { |
| 4732 | /* |
| 4733 | * Which firmware |
| 4734 | */ |
| 4735 | if (!strcmp(adapter->fw_version, "3.00") || |
| 4736 | !strcmp(adapter->fw_version, "3.01")) { |
| 4737 | |
| 4738 | printk( KERN_WARNING |
| 4739 | "megaraid: Your card is a Dell PERC " |
| 4740 | "2/SC RAID controller with " |
| 4741 | "firmware\nmegaraid: 3.00 or 3.01. " |
| 4742 | "This driver is known to have " |
| 4743 | "corruption issues\nmegaraid: with " |
| 4744 | "those firmware versions on this " |
| 4745 | "specific card. In order\nmegaraid: " |
| 4746 | "to protect your data, please upgrade " |
| 4747 | "your firmware to version\nmegaraid: " |
| 4748 | "3.10 or later, available from the " |
| 4749 | "Dell Technical Support web\n" |
| 4750 | "megaraid: site at\nhttp://support." |
| 4751 | "dell.com/us/en/filelib/download/" |
| 4752 | "index.asp?fileid=2940\n" |
| 4753 | ); |
| 4754 | } |
| 4755 | } |
| 4756 | |
| 4757 | /* |
| 4758 | * If we have a HP 1M(0x60E7)/2M(0x60E8) controller with |
| 4759 | * firmware H.01.07, H.01.08, and H.01.09 disable 64 bit |
| 4760 | * support, since this firmware cannot handle 64 bit |
| 4761 | * addressing |
| 4762 | */ |
| 4763 | if ((subsysvid == HP_SUBSYS_VID) && |
| 4764 | ((subsysid == 0x60E7) || (subsysid == 0x60E8))) { |
| 4765 | /* |
| 4766 | * which firmware |
| 4767 | */ |
| 4768 | if (!strcmp(adapter->fw_version, "H01.07") || |
| 4769 | !strcmp(adapter->fw_version, "H01.08") || |
| 4770 | !strcmp(adapter->fw_version, "H01.09") ) { |
| 4771 | printk(KERN_WARNING |
| 4772 | "megaraid: Firmware H.01.07, " |
| 4773 | "H.01.08, and H.01.09 on 1M/2M " |
| 4774 | "controllers\n" |
| 4775 | "megaraid: do not support 64 bit " |
| 4776 | "addressing.\nmegaraid: DISABLING " |
| 4777 | "64 bit support.\n"); |
| 4778 | adapter->flag &= ~BOARD_64BIT; |
| 4779 | } |
| 4780 | } |
| 4781 | |
| 4782 | if (mega_is_bios_enabled(adapter)) |
| 4783 | mega_hbas[hba_count].is_bios_enabled = 1; |
| 4784 | mega_hbas[hba_count].hostdata_addr = adapter; |
| 4785 | |
| 4786 | /* |
| 4787 | * Find out which channel is raid and which is scsi. This is |
| 4788 | * for ROMB support. |
| 4789 | */ |
| 4790 | mega_enum_raid_scsi(adapter); |
| 4791 | |
| 4792 | /* |
| 4793 | * Find out if a logical drive is set as the boot drive. If |
| 4794 | * there is one, will make that as the first logical drive. |
| 4795 | * ROMB: Do we have to boot from a physical drive. Then all |
| 4796 | * the physical drives would appear before the logical disks. |
| 4797 | * Else, all the physical drives would be exported to the mid |
| 4798 | * layer after logical drives. |
| 4799 | */ |
| 4800 | mega_get_boot_drv(adapter); |
| 4801 | |
| 4802 | if (adapter->boot_pdrv_enabled) { |
| 4803 | j = adapter->product_info.nchannels; |
| 4804 | for( i = 0; i < j; i++ ) |
| 4805 | adapter->logdrv_chan[i] = 0; |
| 4806 | for( i = j; i < NVIRT_CHAN + j; i++ ) |
| 4807 | adapter->logdrv_chan[i] = 1; |
| 4808 | } else { |
| 4809 | for (i = 0; i < NVIRT_CHAN; i++) |
| 4810 | adapter->logdrv_chan[i] = 1; |
| 4811 | for (i = NVIRT_CHAN; i < MAX_CHANNELS+NVIRT_CHAN; i++) |
| 4812 | adapter->logdrv_chan[i] = 0; |
| 4813 | adapter->mega_ch_class <<= NVIRT_CHAN; |
| 4814 | } |
| 4815 | |
| 4816 | /* |
| 4817 | * Do we support random deletion and addition of logical |
| 4818 | * drives |
| 4819 | */ |
| 4820 | adapter->read_ldidmap = 0; /* set it after first logdrv |
| 4821 | delete cmd */ |
| 4822 | adapter->support_random_del = mega_support_random_del(adapter); |
| 4823 | |
| 4824 | /* Initialize SCBs */ |
| 4825 | if (mega_init_scb(adapter)) |
| 4826 | goto out_free_mbox; |
| 4827 | |
| 4828 | /* |
| 4829 | * Reset the pending commands counter |
| 4830 | */ |
| 4831 | atomic_set(&adapter->pend_cmds, 0); |
| 4832 | |
| 4833 | /* |
| 4834 | * Reset the adapter quiescent flag |
| 4835 | */ |
| 4836 | atomic_set(&adapter->quiescent, 0); |
| 4837 | |
| 4838 | hba_soft_state[hba_count] = adapter; |
| 4839 | |
| 4840 | /* |
| 4841 | * Fill in the structure which needs to be passed back to the |
| 4842 | * application when it does an ioctl() for controller related |
| 4843 | * information. |
| 4844 | */ |
| 4845 | i = hba_count; |
| 4846 | |
| 4847 | mcontroller[i].base = mega_baseport; |
| 4848 | mcontroller[i].irq = irq; |
| 4849 | mcontroller[i].numldrv = adapter->numldrv; |
| 4850 | mcontroller[i].pcibus = pci_bus; |
| 4851 | mcontroller[i].pcidev = id->device; |
| 4852 | mcontroller[i].pcifun = PCI_FUNC (pci_dev_func); |
| 4853 | mcontroller[i].pciid = -1; |
| 4854 | mcontroller[i].pcivendor = id->vendor; |
| 4855 | mcontroller[i].pcislot = PCI_SLOT(pci_dev_func); |
| 4856 | mcontroller[i].uid = (pci_bus << 8) | pci_dev_func; |
| 4857 | |
| 4858 | |
| 4859 | /* Set the Mode of addressing to 64 bit if we can */ |
| 4860 | if ((adapter->flag & BOARD_64BIT) && (sizeof(dma_addr_t) == 8)) { |
Matthias Gehre | 910638a | 2006-03-28 01:56:48 -0800 | [diff] [blame] | 4861 | pci_set_dma_mask(pdev, DMA_64BIT_MASK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4862 | adapter->has_64bit_addr = 1; |
| 4863 | } else { |
Matthias Gehre | 910638a | 2006-03-28 01:56:48 -0800 | [diff] [blame] | 4864 | pci_set_dma_mask(pdev, DMA_32BIT_MASK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4865 | adapter->has_64bit_addr = 0; |
| 4866 | } |
| 4867 | |
Arjan van de Ven | 0b95067 | 2006-01-11 13:16:10 +0100 | [diff] [blame] | 4868 | mutex_init(&adapter->int_mtx); |
Christoph Hellwig | 8d115f8 | 2005-06-19 13:42:05 +0200 | [diff] [blame] | 4869 | init_completion(&adapter->int_waitq); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4870 | |
| 4871 | adapter->this_id = DEFAULT_INITIATOR_ID; |
| 4872 | adapter->host->this_id = DEFAULT_INITIATOR_ID; |
| 4873 | |
| 4874 | #if MEGA_HAVE_CLUSTERING |
| 4875 | /* |
| 4876 | * Is cluster support enabled on this controller |
| 4877 | * Note: In a cluster the HBAs ( the initiators ) will have |
| 4878 | * different target IDs and we cannot assume it to be 7. Call |
| 4879 | * to mega_support_cluster() will get the target ids also if |
| 4880 | * the cluster support is available |
| 4881 | */ |
| 4882 | adapter->has_cluster = mega_support_cluster(adapter); |
| 4883 | if (adapter->has_cluster) { |
| 4884 | printk(KERN_NOTICE |
| 4885 | "megaraid: Cluster driver, initiator id:%d\n", |
| 4886 | adapter->this_id); |
| 4887 | } |
| 4888 | #endif |
| 4889 | |
| 4890 | pci_set_drvdata(pdev, host); |
| 4891 | |
| 4892 | mega_create_proc_entry(hba_count, mega_proc_dir_entry); |
| 4893 | |
| 4894 | error = scsi_add_host(host, &pdev->dev); |
| 4895 | if (error) |
| 4896 | goto out_free_mbox; |
| 4897 | |
| 4898 | scsi_scan_host(host); |
| 4899 | hba_count++; |
| 4900 | return 0; |
| 4901 | |
| 4902 | out_free_mbox: |
| 4903 | pci_free_consistent(adapter->dev, sizeof(mbox64_t), |
| 4904 | adapter->una_mbox64, adapter->una_mbox64_dma); |
| 4905 | out_free_irq: |
| 4906 | free_irq(adapter->host->irq, adapter); |
| 4907 | out_free_scb_list: |
| 4908 | kfree(adapter->scb_list); |
| 4909 | out_free_cmd_buffer: |
| 4910 | pci_free_consistent(adapter->dev, MEGA_BUFFER_SIZE, |
| 4911 | adapter->mega_buffer, adapter->buf_dma_handle); |
| 4912 | out_host_put: |
| 4913 | scsi_host_put(host); |
| 4914 | out_iounmap: |
| 4915 | if (flag & BOARD_MEMMAP) |
| 4916 | iounmap((void *)mega_baseport); |
| 4917 | out_release_region: |
| 4918 | if (flag & BOARD_MEMMAP) |
| 4919 | release_mem_region(tbase, 128); |
| 4920 | else |
| 4921 | release_region(mega_baseport, 16); |
| 4922 | out_disable_device: |
| 4923 | pci_disable_device(pdev); |
| 4924 | out: |
| 4925 | return error; |
| 4926 | } |
| 4927 | |
| 4928 | static void |
| 4929 | __megaraid_shutdown(adapter_t *adapter) |
| 4930 | { |
| 4931 | u_char raw_mbox[sizeof(struct mbox_out)]; |
| 4932 | mbox_t *mbox = (mbox_t *)raw_mbox; |
| 4933 | int i; |
| 4934 | |
| 4935 | /* Flush adapter cache */ |
| 4936 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); |
| 4937 | raw_mbox[0] = FLUSH_ADAPTER; |
| 4938 | |
| 4939 | free_irq(adapter->host->irq, adapter); |
| 4940 | |
| 4941 | /* Issue a blocking (interrupts disabled) command to the card */ |
| 4942 | issue_scb_block(adapter, raw_mbox); |
| 4943 | |
| 4944 | /* Flush disks cache */ |
| 4945 | memset(&mbox->m_out, 0, sizeof(raw_mbox)); |
| 4946 | raw_mbox[0] = FLUSH_SYSTEM; |
| 4947 | |
| 4948 | /* Issue a blocking (interrupts disabled) command to the card */ |
| 4949 | issue_scb_block(adapter, raw_mbox); |
| 4950 | |
| 4951 | if (atomic_read(&adapter->pend_cmds) > 0) |
| 4952 | printk(KERN_WARNING "megaraid: pending commands!!\n"); |
| 4953 | |
| 4954 | /* |
| 4955 | * Have a delibrate delay to make sure all the caches are |
| 4956 | * actually flushed. |
| 4957 | */ |
| 4958 | for (i = 0; i <= 10; i++) |
| 4959 | mdelay(1000); |
| 4960 | } |
| 4961 | |
| 4962 | static void |
| 4963 | megaraid_remove_one(struct pci_dev *pdev) |
| 4964 | { |
| 4965 | struct Scsi_Host *host = pci_get_drvdata(pdev); |
| 4966 | adapter_t *adapter = (adapter_t *)host->hostdata; |
| 4967 | char buf[12] = { 0 }; |
| 4968 | |
| 4969 | scsi_remove_host(host); |
| 4970 | |
| 4971 | __megaraid_shutdown(adapter); |
| 4972 | |
| 4973 | /* Free our resources */ |
| 4974 | if (adapter->flag & BOARD_MEMMAP) { |
| 4975 | iounmap((void *)adapter->base); |
| 4976 | release_mem_region(adapter->host->base, 128); |
| 4977 | } else |
| 4978 | release_region(adapter->base, 16); |
| 4979 | |
| 4980 | mega_free_sgl(adapter); |
| 4981 | |
| 4982 | #ifdef CONFIG_PROC_FS |
| 4983 | if (adapter->controller_proc_dir_entry) { |
| 4984 | remove_proc_entry("stat", adapter->controller_proc_dir_entry); |
| 4985 | remove_proc_entry("config", |
| 4986 | adapter->controller_proc_dir_entry); |
| 4987 | remove_proc_entry("mailbox", |
| 4988 | adapter->controller_proc_dir_entry); |
| 4989 | #if MEGA_HAVE_ENH_PROC |
| 4990 | remove_proc_entry("rebuild-rate", |
| 4991 | adapter->controller_proc_dir_entry); |
| 4992 | remove_proc_entry("battery-status", |
| 4993 | adapter->controller_proc_dir_entry); |
| 4994 | |
| 4995 | remove_proc_entry("diskdrives-ch0", |
| 4996 | adapter->controller_proc_dir_entry); |
| 4997 | remove_proc_entry("diskdrives-ch1", |
| 4998 | adapter->controller_proc_dir_entry); |
| 4999 | remove_proc_entry("diskdrives-ch2", |
| 5000 | adapter->controller_proc_dir_entry); |
| 5001 | remove_proc_entry("diskdrives-ch3", |
| 5002 | adapter->controller_proc_dir_entry); |
| 5003 | |
| 5004 | remove_proc_entry("raiddrives-0-9", |
| 5005 | adapter->controller_proc_dir_entry); |
| 5006 | remove_proc_entry("raiddrives-10-19", |
| 5007 | adapter->controller_proc_dir_entry); |
| 5008 | remove_proc_entry("raiddrives-20-29", |
| 5009 | adapter->controller_proc_dir_entry); |
| 5010 | remove_proc_entry("raiddrives-30-39", |
| 5011 | adapter->controller_proc_dir_entry); |
| 5012 | #endif |
| 5013 | sprintf(buf, "hba%d", adapter->host->host_no); |
| 5014 | remove_proc_entry(buf, mega_proc_dir_entry); |
| 5015 | } |
| 5016 | #endif |
| 5017 | |
| 5018 | pci_free_consistent(adapter->dev, MEGA_BUFFER_SIZE, |
| 5019 | adapter->mega_buffer, adapter->buf_dma_handle); |
| 5020 | kfree(adapter->scb_list); |
| 5021 | pci_free_consistent(adapter->dev, sizeof(mbox64_t), |
| 5022 | adapter->una_mbox64, adapter->una_mbox64_dma); |
| 5023 | |
| 5024 | scsi_host_put(host); |
| 5025 | pci_disable_device(pdev); |
| 5026 | |
| 5027 | hba_count--; |
| 5028 | } |
| 5029 | |
| 5030 | static void |
Greg Kroah-Hartman | d18c3db | 2005-06-23 17:35:56 -0700 | [diff] [blame] | 5031 | megaraid_shutdown(struct pci_dev *pdev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5032 | { |
Greg Kroah-Hartman | d18c3db | 2005-06-23 17:35:56 -0700 | [diff] [blame] | 5033 | struct Scsi_Host *host = pci_get_drvdata(pdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5034 | adapter_t *adapter = (adapter_t *)host->hostdata; |
| 5035 | |
| 5036 | __megaraid_shutdown(adapter); |
| 5037 | } |
| 5038 | |
| 5039 | static struct pci_device_id megaraid_pci_tbl[] = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5040 | {PCI_VENDOR_ID_AMI, PCI_DEVICE_ID_AMI_MEGARAID, |
| 5041 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, |
| 5042 | {PCI_VENDOR_ID_AMI, PCI_DEVICE_ID_AMI_MEGARAID2, |
| 5043 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5044 | {PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_AMI_MEGARAID3, |
| 5045 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5046 | {0,} |
| 5047 | }; |
| 5048 | MODULE_DEVICE_TABLE(pci, megaraid_pci_tbl); |
| 5049 | |
| 5050 | static struct pci_driver megaraid_pci_driver = { |
Ju, Seokmann | 3542adc | 2006-02-09 12:32:59 -0700 | [diff] [blame] | 5051 | .name = "megaraid_legacy", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5052 | .id_table = megaraid_pci_tbl, |
| 5053 | .probe = megaraid_probe_one, |
| 5054 | .remove = __devexit_p(megaraid_remove_one), |
Greg Kroah-Hartman | d18c3db | 2005-06-23 17:35:56 -0700 | [diff] [blame] | 5055 | .shutdown = megaraid_shutdown, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5056 | }; |
| 5057 | |
| 5058 | static int __init megaraid_init(void) |
| 5059 | { |
| 5060 | int error; |
| 5061 | |
| 5062 | if ((max_cmd_per_lun <= 0) || (max_cmd_per_lun > MAX_CMD_PER_LUN)) |
| 5063 | max_cmd_per_lun = MAX_CMD_PER_LUN; |
| 5064 | if (max_mbox_busy_wait > MBOX_BUSY_WAIT) |
| 5065 | max_mbox_busy_wait = MBOX_BUSY_WAIT; |
| 5066 | |
| 5067 | #ifdef CONFIG_PROC_FS |
| 5068 | mega_proc_dir_entry = proc_mkdir("megaraid", &proc_root); |
| 5069 | if (!mega_proc_dir_entry) { |
| 5070 | printk(KERN_WARNING |
| 5071 | "megaraid: failed to create megaraid root\n"); |
| 5072 | } |
| 5073 | #endif |
| 5074 | error = pci_module_init(&megaraid_pci_driver); |
| 5075 | if (error) { |
| 5076 | #ifdef CONFIG_PROC_FS |
| 5077 | remove_proc_entry("megaraid", &proc_root); |
| 5078 | #endif |
| 5079 | return error; |
| 5080 | } |
| 5081 | |
| 5082 | /* |
| 5083 | * Register the driver as a character device, for applications |
| 5084 | * to access it for ioctls. |
| 5085 | * First argument (major) to register_chrdev implies a dynamic |
| 5086 | * major number allocation. |
| 5087 | */ |
Ju, Seokmann | 3492b32 | 2005-11-17 13:13:31 -0500 | [diff] [blame] | 5088 | major = register_chrdev(0, "megadev_legacy", &megadev_fops); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5089 | if (!major) { |
| 5090 | printk(KERN_WARNING |
| 5091 | "megaraid: failed to register char device\n"); |
| 5092 | } |
| 5093 | |
| 5094 | return 0; |
| 5095 | } |
| 5096 | |
| 5097 | static void __exit megaraid_exit(void) |
| 5098 | { |
| 5099 | /* |
| 5100 | * Unregister the character device interface to the driver. |
| 5101 | */ |
Ju, Seokmann | 3492b32 | 2005-11-17 13:13:31 -0500 | [diff] [blame] | 5102 | unregister_chrdev(major, "megadev_legacy"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5103 | |
| 5104 | pci_unregister_driver(&megaraid_pci_driver); |
| 5105 | |
| 5106 | #ifdef CONFIG_PROC_FS |
| 5107 | remove_proc_entry("megaraid", &proc_root); |
| 5108 | #endif |
| 5109 | } |
| 5110 | |
| 5111 | module_init(megaraid_init); |
| 5112 | module_exit(megaraid_exit); |
| 5113 | |
| 5114 | /* vi: set ts=8 sw=8 tw=78: */ |