Erich Chen | 1c57e86 | 2006-07-12 08:59:32 -0700 | [diff] [blame] | 1 | /* |
| 2 | ******************************************************************************* |
| 3 | ** O.S : Linux |
| 4 | ** FILE NAME : arcmsr_hba.c |
| 5 | ** BY : Erich Chen |
| 6 | ** Description: SCSI RAID Device Driver for |
| 7 | ** ARECA RAID Host adapter |
| 8 | ******************************************************************************* |
| 9 | ** Copyright (C) 2002 - 2005, Areca Technology Corporation All rights reserved |
| 10 | ** |
| 11 | ** Web site: www.areca.com.tw |
| 12 | ** E-mail: erich@areca.com.tw |
| 13 | ** |
| 14 | ** This program is free software; you can redistribute it and/or modify |
| 15 | ** it under the terms of the GNU General Public License version 2 as |
| 16 | ** published by the Free Software Foundation. |
| 17 | ** This program is distributed in the hope that it will be useful, |
| 18 | ** but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 19 | ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 20 | ** GNU General Public License for more details. |
| 21 | ******************************************************************************* |
| 22 | ** Redistribution and use in source and binary forms, with or without |
| 23 | ** modification, are permitted provided that the following conditions |
| 24 | ** are met: |
| 25 | ** 1. Redistributions of source code must retain the above copyright |
| 26 | ** notice, this list of conditions and the following disclaimer. |
| 27 | ** 2. Redistributions in binary form must reproduce the above copyright |
| 28 | ** notice, this list of conditions and the following disclaimer in the |
| 29 | ** documentation and/or other materials provided with the distribution. |
| 30 | ** 3. The name of the author may not be used to endorse or promote products |
| 31 | ** derived from this software without specific prior written permission. |
| 32 | ** |
| 33 | ** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| 34 | ** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 35 | ** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 36 | ** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 37 | ** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES(INCLUDING,BUT |
| 38 | ** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 39 | ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION)HOWEVER CAUSED AND ON ANY |
| 40 | ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 41 | ** (INCLUDING NEGLIGENCE OR OTHERWISE)ARISING IN ANY WAY OUT OF THE USE OF |
| 42 | ** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 43 | ******************************************************************************* |
| 44 | ** For history of changes, see Documentation/scsi/ChangeLog.arcmsr |
| 45 | ** Firmware Specification, see Documentation/scsi/arcmsr_spec.txt |
| 46 | ******************************************************************************* |
| 47 | */ |
| 48 | #include <linux/module.h> |
| 49 | #include <linux/reboot.h> |
| 50 | #include <linux/spinlock.h> |
| 51 | #include <linux/pci_ids.h> |
| 52 | #include <linux/interrupt.h> |
| 53 | #include <linux/moduleparam.h> |
| 54 | #include <linux/errno.h> |
| 55 | #include <linux/types.h> |
| 56 | #include <linux/delay.h> |
| 57 | #include <linux/dma-mapping.h> |
| 58 | #include <linux/timer.h> |
| 59 | #include <linux/pci.h> |
nickcheng(鄭守謙 | a1f6e02 | 2007-06-15 11:43:32 +0800 | [diff] [blame^] | 60 | #include <linux/aer.h> |
Erich Chen | 1c57e86 | 2006-07-12 08:59:32 -0700 | [diff] [blame] | 61 | #include <asm/dma.h> |
| 62 | #include <asm/io.h> |
| 63 | #include <asm/system.h> |
| 64 | #include <asm/uaccess.h> |
| 65 | #include <scsi/scsi_host.h> |
| 66 | #include <scsi/scsi.h> |
| 67 | #include <scsi/scsi_cmnd.h> |
| 68 | #include <scsi/scsi_tcq.h> |
| 69 | #include <scsi/scsi_device.h> |
| 70 | #include <scsi/scsi_transport.h> |
| 71 | #include <scsi/scsicam.h> |
| 72 | #include "arcmsr.h" |
| 73 | |
| 74 | MODULE_AUTHOR("Erich Chen <erich@areca.com.tw>"); |
nickcheng(鄭守謙 | a1f6e02 | 2007-06-15 11:43:32 +0800 | [diff] [blame^] | 75 | MODULE_DESCRIPTION("ARECA (ARC11xx/12xx/13xx/16xx) SATA/SAS RAID HOST Adapter"); |
Erich Chen | 1c57e86 | 2006-07-12 08:59:32 -0700 | [diff] [blame] | 76 | MODULE_LICENSE("Dual BSD/GPL"); |
| 77 | MODULE_VERSION(ARCMSR_DRIVER_VERSION); |
| 78 | |
| 79 | static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb, struct scsi_cmnd *cmd); |
| 80 | static int arcmsr_abort(struct scsi_cmnd *); |
| 81 | static int arcmsr_bus_reset(struct scsi_cmnd *); |
| 82 | static int arcmsr_bios_param(struct scsi_device *sdev, |
| 83 | struct block_device *bdev, sector_t capacity, int *info); |
| 84 | static int arcmsr_queue_command(struct scsi_cmnd * cmd, |
| 85 | void (*done) (struct scsi_cmnd *)); |
| 86 | static int arcmsr_probe(struct pci_dev *pdev, |
| 87 | const struct pci_device_id *id); |
| 88 | static void arcmsr_remove(struct pci_dev *pdev); |
| 89 | static void arcmsr_shutdown(struct pci_dev *pdev); |
| 90 | static void arcmsr_iop_init(struct AdapterControlBlock *acb); |
| 91 | static void arcmsr_free_ccb_pool(struct AdapterControlBlock *acb); |
| 92 | static void arcmsr_stop_adapter_bgrb(struct AdapterControlBlock *acb); |
| 93 | static void arcmsr_flush_adapter_cache(struct AdapterControlBlock *acb); |
| 94 | static uint8_t arcmsr_wait_msgint_ready(struct AdapterControlBlock *acb); |
| 95 | static const char *arcmsr_info(struct Scsi_Host *); |
| 96 | static irqreturn_t arcmsr_interrupt(struct AdapterControlBlock *acb); |
nickcheng(鄭守謙 | a1f6e02 | 2007-06-15 11:43:32 +0800 | [diff] [blame^] | 97 | static pci_ers_result_t arcmsr_pci_error_detected(struct pci_dev *pdev, |
| 98 | pci_channel_state_t state); |
| 99 | static pci_ers_result_t arcmsr_pci_slot_reset(struct pci_dev *pdev); |
Erich Chen | 1c57e86 | 2006-07-12 08:59:32 -0700 | [diff] [blame] | 100 | static int arcmsr_adjust_disk_queue_depth(struct scsi_device *sdev, int queue_depth) |
| 101 | { |
| 102 | if (queue_depth > ARCMSR_MAX_CMD_PERLUN) |
| 103 | queue_depth = ARCMSR_MAX_CMD_PERLUN; |
| 104 | scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, queue_depth); |
| 105 | return queue_depth; |
| 106 | } |
| 107 | |
| 108 | static struct scsi_host_template arcmsr_scsi_host_template = { |
| 109 | .module = THIS_MODULE, |
nickcheng(鄭守謙 | a1f6e02 | 2007-06-15 11:43:32 +0800 | [diff] [blame^] | 110 | .name = "ARCMSR ARECA SATA/SAS RAID HOST Adapter" |
| 111 | ARCMSR_DRIVER_VERSION, |
Erich Chen | 1c57e86 | 2006-07-12 08:59:32 -0700 | [diff] [blame] | 112 | .info = arcmsr_info, |
| 113 | .queuecommand = arcmsr_queue_command, |
| 114 | .eh_abort_handler = arcmsr_abort, |
| 115 | .eh_bus_reset_handler = arcmsr_bus_reset, |
| 116 | .bios_param = arcmsr_bios_param, |
| 117 | .change_queue_depth = arcmsr_adjust_disk_queue_depth, |
| 118 | .can_queue = ARCMSR_MAX_OUTSTANDING_CMD, |
| 119 | .this_id = ARCMSR_SCSI_INITIATOR_ID, |
| 120 | .sg_tablesize = ARCMSR_MAX_SG_ENTRIES, |
| 121 | .max_sectors = ARCMSR_MAX_XFER_SECTORS, |
| 122 | .cmd_per_lun = ARCMSR_MAX_CMD_PERLUN, |
| 123 | .use_clustering = ENABLE_CLUSTERING, |
| 124 | .shost_attrs = arcmsr_host_attrs, |
| 125 | }; |
nickcheng(鄭守謙 | a1f6e02 | 2007-06-15 11:43:32 +0800 | [diff] [blame^] | 126 | static struct pci_error_handlers arcmsr_pci_error_handlers = { |
| 127 | .error_detected = arcmsr_pci_error_detected, |
| 128 | .slot_reset = arcmsr_pci_slot_reset, |
| 129 | }; |
Erich Chen | 1c57e86 | 2006-07-12 08:59:32 -0700 | [diff] [blame] | 130 | |
| 131 | static struct pci_device_id arcmsr_device_id_table[] = { |
| 132 | {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1110)}, |
| 133 | {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1120)}, |
| 134 | {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1130)}, |
| 135 | {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1160)}, |
| 136 | {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1170)}, |
| 137 | {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1210)}, |
| 138 | {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1220)}, |
| 139 | {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1230)}, |
| 140 | {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1260)}, |
| 141 | {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1270)}, |
| 142 | {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1280)}, |
| 143 | {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1380)}, |
| 144 | {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1381)}, |
| 145 | {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1680)}, |
| 146 | {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1681)}, |
| 147 | {0, 0}, /* Terminating entry */ |
| 148 | }; |
| 149 | MODULE_DEVICE_TABLE(pci, arcmsr_device_id_table); |
| 150 | static struct pci_driver arcmsr_pci_driver = { |
| 151 | .name = "arcmsr", |
| 152 | .id_table = arcmsr_device_id_table, |
| 153 | .probe = arcmsr_probe, |
| 154 | .remove = arcmsr_remove, |
nickcheng(鄭守謙 | a1f6e02 | 2007-06-15 11:43:32 +0800 | [diff] [blame^] | 155 | .shutdown = arcmsr_shutdown, |
| 156 | .err_handler = &arcmsr_pci_error_handlers, |
Erich Chen | 1c57e86 | 2006-07-12 08:59:32 -0700 | [diff] [blame] | 157 | }; |
| 158 | |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 159 | static irqreturn_t arcmsr_do_interrupt(int irq, void *dev_id) |
Erich Chen | 1c57e86 | 2006-07-12 08:59:32 -0700 | [diff] [blame] | 160 | { |
| 161 | irqreturn_t handle_state; |
| 162 | struct AdapterControlBlock *acb; |
| 163 | unsigned long flags; |
| 164 | |
| 165 | acb = (struct AdapterControlBlock *)dev_id; |
| 166 | |
| 167 | spin_lock_irqsave(acb->host->host_lock, flags); |
| 168 | handle_state = arcmsr_interrupt(acb); |
| 169 | spin_unlock_irqrestore(acb->host->host_lock, flags); |
| 170 | return handle_state; |
| 171 | } |
| 172 | |
| 173 | static int arcmsr_bios_param(struct scsi_device *sdev, |
| 174 | struct block_device *bdev, sector_t capacity, int *geom) |
| 175 | { |
| 176 | int ret, heads, sectors, cylinders, total_capacity; |
| 177 | unsigned char *buffer;/* return copy of block device's partition table */ |
| 178 | |
| 179 | buffer = scsi_bios_ptable(bdev); |
| 180 | if (buffer) { |
| 181 | ret = scsi_partsize(buffer, capacity, &geom[2], &geom[0], &geom[1]); |
| 182 | kfree(buffer); |
| 183 | if (ret != -1) |
| 184 | return ret; |
| 185 | } |
| 186 | total_capacity = capacity; |
| 187 | heads = 64; |
| 188 | sectors = 32; |
| 189 | cylinders = total_capacity / (heads * sectors); |
| 190 | if (cylinders > 1024) { |
| 191 | heads = 255; |
| 192 | sectors = 63; |
| 193 | cylinders = total_capacity / (heads * sectors); |
| 194 | } |
| 195 | geom[0] = heads; |
| 196 | geom[1] = sectors; |
| 197 | geom[2] = cylinders; |
| 198 | return 0; |
| 199 | } |
| 200 | |
| 201 | static int arcmsr_alloc_ccb_pool(struct AdapterControlBlock *acb) |
| 202 | { |
| 203 | struct pci_dev *pdev = acb->pdev; |
| 204 | struct MessageUnit __iomem *reg = acb->pmu; |
| 205 | u32 ccb_phyaddr_hi32; |
| 206 | void *dma_coherent; |
| 207 | dma_addr_t dma_coherent_handle, dma_addr; |
| 208 | struct CommandControlBlock *ccb_tmp; |
| 209 | int i, j; |
| 210 | |
| 211 | dma_coherent = dma_alloc_coherent(&pdev->dev, |
| 212 | ARCMSR_MAX_FREECCB_NUM * |
| 213 | sizeof (struct CommandControlBlock) + 0x20, |
| 214 | &dma_coherent_handle, GFP_KERNEL); |
| 215 | if (!dma_coherent) |
| 216 | return -ENOMEM; |
| 217 | |
| 218 | acb->dma_coherent = dma_coherent; |
| 219 | acb->dma_coherent_handle = dma_coherent_handle; |
| 220 | |
| 221 | if (((unsigned long)dma_coherent & 0x1F)) { |
| 222 | dma_coherent = dma_coherent + |
| 223 | (0x20 - ((unsigned long)dma_coherent & 0x1F)); |
| 224 | dma_coherent_handle = dma_coherent_handle + |
| 225 | (0x20 - ((unsigned long)dma_coherent_handle & 0x1F)); |
| 226 | } |
| 227 | |
| 228 | dma_addr = dma_coherent_handle; |
| 229 | ccb_tmp = (struct CommandControlBlock *)dma_coherent; |
| 230 | for (i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++) { |
| 231 | ccb_tmp->cdb_shifted_phyaddr = dma_addr >> 5; |
| 232 | ccb_tmp->acb = acb; |
| 233 | acb->pccb_pool[i] = ccb_tmp; |
| 234 | list_add_tail(&ccb_tmp->list, &acb->ccb_free_list); |
| 235 | dma_addr = dma_addr + sizeof (struct CommandControlBlock); |
| 236 | ccb_tmp++; |
| 237 | } |
| 238 | |
| 239 | acb->vir2phy_offset = (unsigned long)ccb_tmp - |
| 240 | (unsigned long)dma_addr; |
| 241 | for (i = 0; i < ARCMSR_MAX_TARGETID; i++) |
| 242 | for (j = 0; j < ARCMSR_MAX_TARGETLUN; j++) |
| 243 | acb->devstate[i][j] = ARECA_RAID_GOOD; |
| 244 | |
| 245 | /* |
| 246 | ** here we need to tell iop 331 our ccb_tmp.HighPart |
| 247 | ** if ccb_tmp.HighPart is not zero |
| 248 | */ |
| 249 | ccb_phyaddr_hi32 = (uint32_t) ((dma_coherent_handle >> 16) >> 16); |
| 250 | if (ccb_phyaddr_hi32 != 0) { |
| 251 | writel(ARCMSR_SIGNATURE_SET_CONFIG, ®->message_rwbuffer[0]); |
| 252 | writel(ccb_phyaddr_hi32, ®->message_rwbuffer[1]); |
| 253 | writel(ARCMSR_INBOUND_MESG0_SET_CONFIG, ®->inbound_msgaddr0); |
| 254 | if (arcmsr_wait_msgint_ready(acb)) |
| 255 | printk(KERN_NOTICE "arcmsr%d: " |
| 256 | "'set ccb high part physical address' timeout\n", |
| 257 | acb->host->host_no); |
| 258 | } |
| 259 | |
| 260 | writel(readl(®->outbound_intmask) | |
| 261 | ARCMSR_MU_OUTBOUND_ALL_INTMASKENABLE, |
| 262 | ®->outbound_intmask); |
| 263 | return 0; |
| 264 | } |
| 265 | |
| 266 | static int arcmsr_probe(struct pci_dev *pdev, |
| 267 | const struct pci_device_id *id) |
| 268 | { |
| 269 | struct Scsi_Host *host; |
| 270 | struct AdapterControlBlock *acb; |
| 271 | uint8_t bus, dev_fun; |
| 272 | int error; |
| 273 | |
| 274 | error = pci_enable_device(pdev); |
| 275 | if (error) |
| 276 | goto out; |
| 277 | pci_set_master(pdev); |
| 278 | |
| 279 | host = scsi_host_alloc(&arcmsr_scsi_host_template, |
| 280 | sizeof(struct AdapterControlBlock)); |
| 281 | if (!host) { |
| 282 | error = -ENOMEM; |
| 283 | goto out_disable_device; |
| 284 | } |
| 285 | acb = (struct AdapterControlBlock *)host->hostdata; |
| 286 | memset(acb, 0, sizeof (struct AdapterControlBlock)); |
| 287 | |
| 288 | error = pci_set_dma_mask(pdev, DMA_64BIT_MASK); |
| 289 | if (error) { |
| 290 | error = pci_set_dma_mask(pdev, DMA_32BIT_MASK); |
| 291 | if (error) { |
| 292 | printk(KERN_WARNING |
| 293 | "scsi%d: No suitable DMA mask available\n", |
| 294 | host->host_no); |
| 295 | goto out_host_put; |
| 296 | } |
| 297 | } |
| 298 | bus = pdev->bus->number; |
| 299 | dev_fun = pdev->devfn; |
| 300 | acb->host = host; |
| 301 | acb->pdev = pdev; |
| 302 | host->max_sectors = ARCMSR_MAX_XFER_SECTORS; |
| 303 | host->max_lun = ARCMSR_MAX_TARGETLUN; |
| 304 | host->max_id = ARCMSR_MAX_TARGETID;/*16:8*/ |
| 305 | host->max_cmd_len = 16; /*this is issue of 64bit LBA, over 2T byte*/ |
| 306 | host->sg_tablesize = ARCMSR_MAX_SG_ENTRIES; |
| 307 | host->can_queue = ARCMSR_MAX_FREECCB_NUM; /* max simultaneous cmds */ |
| 308 | host->cmd_per_lun = ARCMSR_MAX_CMD_PERLUN; |
| 309 | host->this_id = ARCMSR_SCSI_INITIATOR_ID; |
| 310 | host->unique_id = (bus << 8) | dev_fun; |
| 311 | host->irq = pdev->irq; |
| 312 | error = pci_request_regions(pdev, "arcmsr"); |
| 313 | if (error) |
| 314 | goto out_host_put; |
| 315 | |
| 316 | acb->pmu = ioremap(pci_resource_start(pdev, 0), |
| 317 | pci_resource_len(pdev, 0)); |
| 318 | if (!acb->pmu) { |
| 319 | printk(KERN_NOTICE "arcmsr%d: memory" |
| 320 | " mapping region fail \n", acb->host->host_no); |
| 321 | goto out_release_regions; |
| 322 | } |
| 323 | acb->acb_flags |= (ACB_F_MESSAGE_WQBUFFER_CLEARED | |
| 324 | ACB_F_MESSAGE_RQBUFFER_CLEARED | |
| 325 | ACB_F_MESSAGE_WQBUFFER_READED); |
| 326 | acb->acb_flags &= ~ACB_F_SCSISTOPADAPTER; |
| 327 | INIT_LIST_HEAD(&acb->ccb_free_list); |
| 328 | |
| 329 | error = arcmsr_alloc_ccb_pool(acb); |
| 330 | if (error) |
| 331 | goto out_iounmap; |
| 332 | |
| 333 | error = request_irq(pdev->irq, arcmsr_do_interrupt, |
Thomas Gleixner | 38515e9 | 2007-02-14 00:33:16 -0800 | [diff] [blame] | 334 | IRQF_DISABLED | IRQF_SHARED, "arcmsr", acb); |
Erich Chen | 1c57e86 | 2006-07-12 08:59:32 -0700 | [diff] [blame] | 335 | if (error) |
| 336 | goto out_free_ccb_pool; |
| 337 | |
| 338 | arcmsr_iop_init(acb); |
| 339 | pci_set_drvdata(pdev, host); |
nickcheng(鄭守謙 | a1f6e02 | 2007-06-15 11:43:32 +0800 | [diff] [blame^] | 340 | if (strncmp(acb->firm_version, "V1.42", 5) >= 0) |
| 341 | host->max_sectors= ARCMSR_MAX_XFER_SECTORS_B; |
Erich Chen | 1c57e86 | 2006-07-12 08:59:32 -0700 | [diff] [blame] | 342 | |
| 343 | error = scsi_add_host(host, &pdev->dev); |
| 344 | if (error) |
| 345 | goto out_free_irq; |
| 346 | |
| 347 | error = arcmsr_alloc_sysfs_attr(acb); |
| 348 | if (error) |
| 349 | goto out_free_sysfs; |
| 350 | |
| 351 | scsi_scan_host(host); |
nickcheng(鄭守謙 | a1f6e02 | 2007-06-15 11:43:32 +0800 | [diff] [blame^] | 352 | pci_enable_pcie_error_reporting(pdev); |
Erich Chen | 1c57e86 | 2006-07-12 08:59:32 -0700 | [diff] [blame] | 353 | return 0; |
| 354 | out_free_sysfs: |
| 355 | out_free_irq: |
| 356 | free_irq(pdev->irq, acb); |
| 357 | out_free_ccb_pool: |
| 358 | arcmsr_free_ccb_pool(acb); |
| 359 | out_iounmap: |
| 360 | iounmap(acb->pmu); |
| 361 | out_release_regions: |
| 362 | pci_release_regions(pdev); |
| 363 | out_host_put: |
| 364 | scsi_host_put(host); |
| 365 | out_disable_device: |
| 366 | pci_disable_device(pdev); |
| 367 | out: |
| 368 | return error; |
| 369 | } |
| 370 | |
| 371 | static void arcmsr_abort_allcmd(struct AdapterControlBlock *acb) |
| 372 | { |
| 373 | struct MessageUnit __iomem *reg = acb->pmu; |
| 374 | |
| 375 | writel(ARCMSR_INBOUND_MESG0_ABORT_CMD, ®->inbound_msgaddr0); |
| 376 | if (arcmsr_wait_msgint_ready(acb)) |
| 377 | printk(KERN_NOTICE |
| 378 | "arcmsr%d: wait 'abort all outstanding command' timeout \n" |
| 379 | , acb->host->host_no); |
| 380 | } |
| 381 | |
| 382 | static void arcmsr_pci_unmap_dma(struct CommandControlBlock *ccb) |
| 383 | { |
Erich Chen | 1c57e86 | 2006-07-12 08:59:32 -0700 | [diff] [blame] | 384 | struct scsi_cmnd *pcmd = ccb->pcmd; |
| 385 | |
FUJITA Tomonori | deff262 | 2007-05-14 19:25:56 +0900 | [diff] [blame] | 386 | scsi_dma_unmap(pcmd); |
Erich Chen | 1c57e86 | 2006-07-12 08:59:32 -0700 | [diff] [blame] | 387 | } |
| 388 | |
| 389 | static void arcmsr_ccb_complete(struct CommandControlBlock *ccb, int stand_flag) |
| 390 | { |
| 391 | struct AdapterControlBlock *acb = ccb->acb; |
| 392 | struct scsi_cmnd *pcmd = ccb->pcmd; |
| 393 | |
| 394 | arcmsr_pci_unmap_dma(ccb); |
| 395 | if (stand_flag == 1) |
| 396 | atomic_dec(&acb->ccboutstandingcount); |
| 397 | ccb->startdone = ARCMSR_CCB_DONE; |
| 398 | ccb->ccb_flags = 0; |
| 399 | list_add_tail(&ccb->list, &acb->ccb_free_list); |
| 400 | pcmd->scsi_done(pcmd); |
| 401 | } |
| 402 | |
| 403 | static void arcmsr_remove(struct pci_dev *pdev) |
| 404 | { |
| 405 | struct Scsi_Host *host = pci_get_drvdata(pdev); |
| 406 | struct AdapterControlBlock *acb = |
| 407 | (struct AdapterControlBlock *) host->hostdata; |
| 408 | struct MessageUnit __iomem *reg = acb->pmu; |
| 409 | int poll_count = 0; |
| 410 | |
| 411 | arcmsr_free_sysfs_attr(acb); |
| 412 | scsi_remove_host(host); |
| 413 | arcmsr_stop_adapter_bgrb(acb); |
| 414 | arcmsr_flush_adapter_cache(acb); |
| 415 | writel(readl(®->outbound_intmask) | |
| 416 | ARCMSR_MU_OUTBOUND_ALL_INTMASKENABLE, |
| 417 | ®->outbound_intmask); |
| 418 | acb->acb_flags |= ACB_F_SCSISTOPADAPTER; |
| 419 | acb->acb_flags &= ~ACB_F_IOP_INITED; |
| 420 | |
| 421 | for (poll_count = 0; poll_count < 256; poll_count++) { |
| 422 | if (!atomic_read(&acb->ccboutstandingcount)) |
| 423 | break; |
| 424 | arcmsr_interrupt(acb); |
| 425 | msleep(25); |
| 426 | } |
| 427 | |
| 428 | if (atomic_read(&acb->ccboutstandingcount)) { |
| 429 | int i; |
| 430 | |
| 431 | arcmsr_abort_allcmd(acb); |
| 432 | for (i = 0; i < ARCMSR_MAX_OUTSTANDING_CMD; i++) |
| 433 | readl(®->outbound_queueport); |
| 434 | for (i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++) { |
| 435 | struct CommandControlBlock *ccb = acb->pccb_pool[i]; |
| 436 | if (ccb->startdone == ARCMSR_CCB_START) { |
| 437 | ccb->startdone = ARCMSR_CCB_ABORTED; |
| 438 | ccb->pcmd->result = DID_ABORT << 16; |
| 439 | arcmsr_ccb_complete(ccb, 1); |
| 440 | } |
| 441 | } |
| 442 | } |
| 443 | |
| 444 | free_irq(pdev->irq, acb); |
| 445 | iounmap(acb->pmu); |
| 446 | arcmsr_free_ccb_pool(acb); |
| 447 | pci_release_regions(pdev); |
| 448 | |
| 449 | scsi_host_put(host); |
| 450 | |
| 451 | pci_disable_device(pdev); |
| 452 | pci_set_drvdata(pdev, NULL); |
| 453 | } |
| 454 | |
| 455 | static void arcmsr_shutdown(struct pci_dev *pdev) |
| 456 | { |
| 457 | struct Scsi_Host *host = pci_get_drvdata(pdev); |
| 458 | struct AdapterControlBlock *acb = |
| 459 | (struct AdapterControlBlock *)host->hostdata; |
| 460 | |
| 461 | arcmsr_stop_adapter_bgrb(acb); |
| 462 | arcmsr_flush_adapter_cache(acb); |
| 463 | } |
| 464 | |
| 465 | static int arcmsr_module_init(void) |
| 466 | { |
| 467 | int error = 0; |
| 468 | |
| 469 | error = pci_register_driver(&arcmsr_pci_driver); |
| 470 | return error; |
| 471 | } |
| 472 | |
| 473 | static void arcmsr_module_exit(void) |
| 474 | { |
| 475 | pci_unregister_driver(&arcmsr_pci_driver); |
| 476 | } |
| 477 | module_init(arcmsr_module_init); |
| 478 | module_exit(arcmsr_module_exit); |
| 479 | |
| 480 | static u32 arcmsr_disable_outbound_ints(struct AdapterControlBlock *acb) |
| 481 | { |
| 482 | struct MessageUnit __iomem *reg = acb->pmu; |
| 483 | u32 orig_mask = readl(®->outbound_intmask); |
| 484 | |
| 485 | writel(orig_mask | ARCMSR_MU_OUTBOUND_ALL_INTMASKENABLE, |
| 486 | ®->outbound_intmask); |
| 487 | return orig_mask; |
| 488 | } |
| 489 | |
| 490 | static void arcmsr_enable_outbound_ints(struct AdapterControlBlock *acb, |
| 491 | u32 orig_mask) |
| 492 | { |
| 493 | struct MessageUnit __iomem *reg = acb->pmu; |
| 494 | u32 mask; |
| 495 | |
| 496 | mask = orig_mask & ~(ARCMSR_MU_OUTBOUND_POSTQUEUE_INTMASKENABLE | |
| 497 | ARCMSR_MU_OUTBOUND_DOORBELL_INTMASKENABLE); |
| 498 | writel(mask, ®->outbound_intmask); |
| 499 | } |
| 500 | |
| 501 | static void arcmsr_flush_adapter_cache(struct AdapterControlBlock *acb) |
| 502 | { |
nickcheng(鄭守謙 | a1f6e02 | 2007-06-15 11:43:32 +0800 | [diff] [blame^] | 503 | struct MessageUnit __iomem *reg = acb->pmu; |
Erich Chen | 1c57e86 | 2006-07-12 08:59:32 -0700 | [diff] [blame] | 504 | |
| 505 | writel(ARCMSR_INBOUND_MESG0_FLUSH_CACHE, ®->inbound_msgaddr0); |
| 506 | if (arcmsr_wait_msgint_ready(acb)) |
| 507 | printk(KERN_NOTICE |
| 508 | "arcmsr%d: wait 'flush adapter cache' timeout \n" |
| 509 | , acb->host->host_no); |
| 510 | } |
| 511 | |
| 512 | static void arcmsr_report_sense_info(struct CommandControlBlock *ccb) |
| 513 | { |
| 514 | struct scsi_cmnd *pcmd = ccb->pcmd; |
| 515 | struct SENSE_DATA *sensebuffer = (struct SENSE_DATA *)pcmd->sense_buffer; |
| 516 | |
| 517 | pcmd->result = DID_OK << 16; |
| 518 | if (sensebuffer) { |
| 519 | int sense_data_length = |
| 520 | sizeof (struct SENSE_DATA) < sizeof (pcmd->sense_buffer) |
| 521 | ? sizeof (struct SENSE_DATA) : sizeof (pcmd->sense_buffer); |
| 522 | memset(sensebuffer, 0, sizeof (pcmd->sense_buffer)); |
| 523 | memcpy(sensebuffer, ccb->arcmsr_cdb.SenseData, sense_data_length); |
| 524 | sensebuffer->ErrorCode = SCSI_SENSE_CURRENT_ERRORS; |
| 525 | sensebuffer->Valid = 1; |
| 526 | } |
| 527 | } |
| 528 | |
| 529 | static uint8_t arcmsr_wait_msgint_ready(struct AdapterControlBlock *acb) |
| 530 | { |
| 531 | struct MessageUnit __iomem *reg = acb->pmu; |
| 532 | uint32_t Index; |
| 533 | uint8_t Retries = 0x00; |
| 534 | |
| 535 | do { |
| 536 | for (Index = 0; Index < 100; Index++) { |
| 537 | if (readl(®->outbound_intstatus) |
| 538 | & ARCMSR_MU_OUTBOUND_MESSAGE0_INT) { |
| 539 | writel(ARCMSR_MU_OUTBOUND_MESSAGE0_INT |
| 540 | , ®->outbound_intstatus); |
| 541 | return 0x00; |
| 542 | } |
| 543 | msleep_interruptible(10); |
| 544 | }/*max 1 seconds*/ |
| 545 | } while (Retries++ < 20);/*max 20 sec*/ |
| 546 | return 0xff; |
| 547 | } |
| 548 | |
| 549 | static void arcmsr_build_ccb(struct AdapterControlBlock *acb, |
| 550 | struct CommandControlBlock *ccb, struct scsi_cmnd *pcmd) |
| 551 | { |
| 552 | struct ARCMSR_CDB *arcmsr_cdb = (struct ARCMSR_CDB *)&ccb->arcmsr_cdb; |
| 553 | int8_t *psge = (int8_t *)&arcmsr_cdb->u; |
| 554 | uint32_t address_lo, address_hi; |
| 555 | int arccdbsize = 0x30; |
FUJITA Tomonori | deff262 | 2007-05-14 19:25:56 +0900 | [diff] [blame] | 556 | int nseg; |
Erich Chen | 1c57e86 | 2006-07-12 08:59:32 -0700 | [diff] [blame] | 557 | |
| 558 | ccb->pcmd = pcmd; |
| 559 | memset(arcmsr_cdb, 0, sizeof (struct ARCMSR_CDB)); |
| 560 | arcmsr_cdb->Bus = 0; |
| 561 | arcmsr_cdb->TargetID = pcmd->device->id; |
| 562 | arcmsr_cdb->LUN = pcmd->device->lun; |
| 563 | arcmsr_cdb->Function = 1; |
| 564 | arcmsr_cdb->CdbLength = (uint8_t)pcmd->cmd_len; |
| 565 | arcmsr_cdb->Context = (unsigned long)arcmsr_cdb; |
| 566 | memcpy(arcmsr_cdb->Cdb, pcmd->cmnd, pcmd->cmd_len); |
Erich Chen | 1c57e86 | 2006-07-12 08:59:32 -0700 | [diff] [blame] | 567 | |
FUJITA Tomonori | deff262 | 2007-05-14 19:25:56 +0900 | [diff] [blame] | 568 | nseg = scsi_dma_map(pcmd); |
| 569 | BUG_ON(nseg < 0); |
| 570 | |
| 571 | if (nseg) { |
| 572 | int length, i, cdb_sgcount = 0; |
| 573 | struct scatterlist *sg; |
| 574 | |
Erich Chen | 1c57e86 | 2006-07-12 08:59:32 -0700 | [diff] [blame] | 575 | /* map stor port SG list to our iop SG List. */ |
FUJITA Tomonori | deff262 | 2007-05-14 19:25:56 +0900 | [diff] [blame] | 576 | scsi_for_each_sg(pcmd, sg, nseg, i) { |
Erich Chen | 1c57e86 | 2006-07-12 08:59:32 -0700 | [diff] [blame] | 577 | /* Get the physical address of the current data pointer */ |
FUJITA Tomonori | deff262 | 2007-05-14 19:25:56 +0900 | [diff] [blame] | 578 | length = cpu_to_le32(sg_dma_len(sg)); |
| 579 | address_lo = cpu_to_le32(dma_addr_lo32(sg_dma_address(sg))); |
| 580 | address_hi = cpu_to_le32(dma_addr_hi32(sg_dma_address(sg))); |
Erich Chen | 1c57e86 | 2006-07-12 08:59:32 -0700 | [diff] [blame] | 581 | if (address_hi == 0) { |
| 582 | struct SG32ENTRY *pdma_sg = (struct SG32ENTRY *)psge; |
| 583 | |
| 584 | pdma_sg->address = address_lo; |
| 585 | pdma_sg->length = length; |
| 586 | psge += sizeof (struct SG32ENTRY); |
| 587 | arccdbsize += sizeof (struct SG32ENTRY); |
| 588 | } else { |
| 589 | struct SG64ENTRY *pdma_sg = (struct SG64ENTRY *)psge; |
| 590 | |
| 591 | pdma_sg->addresshigh = address_hi; |
| 592 | pdma_sg->address = address_lo; |
| 593 | pdma_sg->length = length|IS_SG64_ADDR; |
| 594 | psge += sizeof (struct SG64ENTRY); |
| 595 | arccdbsize += sizeof (struct SG64ENTRY); |
| 596 | } |
Erich Chen | 1c57e86 | 2006-07-12 08:59:32 -0700 | [diff] [blame] | 597 | cdb_sgcount++; |
| 598 | } |
| 599 | arcmsr_cdb->sgcount = (uint8_t)cdb_sgcount; |
FUJITA Tomonori | deff262 | 2007-05-14 19:25:56 +0900 | [diff] [blame] | 600 | arcmsr_cdb->DataLength = scsi_bufflen(pcmd); |
Erich Chen | 1c57e86 | 2006-07-12 08:59:32 -0700 | [diff] [blame] | 601 | if ( arccdbsize > 256) |
| 602 | arcmsr_cdb->Flags |= ARCMSR_CDB_FLAG_SGL_BSIZE; |
Erich Chen | 1c57e86 | 2006-07-12 08:59:32 -0700 | [diff] [blame] | 603 | } |
| 604 | if (pcmd->sc_data_direction == DMA_TO_DEVICE ) { |
| 605 | arcmsr_cdb->Flags |= ARCMSR_CDB_FLAG_WRITE; |
| 606 | ccb->ccb_flags |= CCB_FLAG_WRITE; |
| 607 | } |
| 608 | } |
| 609 | |
| 610 | static void arcmsr_post_ccb(struct AdapterControlBlock *acb, struct CommandControlBlock *ccb) |
| 611 | { |
| 612 | struct MessageUnit __iomem *reg = acb->pmu; |
| 613 | uint32_t cdb_shifted_phyaddr = ccb->cdb_shifted_phyaddr; |
| 614 | struct ARCMSR_CDB *arcmsr_cdb = (struct ARCMSR_CDB *)&ccb->arcmsr_cdb; |
| 615 | |
| 616 | atomic_inc(&acb->ccboutstandingcount); |
| 617 | ccb->startdone = ARCMSR_CCB_START; |
| 618 | if (arcmsr_cdb->Flags & ARCMSR_CDB_FLAG_SGL_BSIZE) |
| 619 | writel(cdb_shifted_phyaddr | ARCMSR_CCBPOST_FLAG_SGL_BSIZE, |
| 620 | ®->inbound_queueport); |
| 621 | else |
| 622 | writel(cdb_shifted_phyaddr, ®->inbound_queueport); |
| 623 | } |
| 624 | |
| 625 | void arcmsr_post_Qbuffer(struct AdapterControlBlock *acb) |
| 626 | { |
| 627 | struct MessageUnit __iomem *reg = acb->pmu; |
| 628 | struct QBUFFER __iomem *pwbuffer = (struct QBUFFER __iomem *) ®->message_wbuffer; |
| 629 | uint8_t __iomem *iop_data = (uint8_t __iomem *) pwbuffer->data; |
| 630 | int32_t allxfer_len = 0; |
| 631 | |
| 632 | if (acb->acb_flags & ACB_F_MESSAGE_WQBUFFER_READED) { |
| 633 | acb->acb_flags &= (~ACB_F_MESSAGE_WQBUFFER_READED); |
| 634 | while ((acb->wqbuf_firstindex != acb->wqbuf_lastindex) |
| 635 | && (allxfer_len < 124)) { |
| 636 | writeb(acb->wqbuffer[acb->wqbuf_firstindex], iop_data); |
| 637 | acb->wqbuf_firstindex++; |
| 638 | acb->wqbuf_firstindex %= ARCMSR_MAX_QBUFFER; |
| 639 | iop_data++; |
| 640 | allxfer_len++; |
| 641 | } |
| 642 | writel(allxfer_len, &pwbuffer->data_len); |
| 643 | writel(ARCMSR_INBOUND_DRIVER_DATA_WRITE_OK |
| 644 | , ®->inbound_doorbell); |
| 645 | } |
| 646 | } |
| 647 | |
| 648 | static void arcmsr_stop_adapter_bgrb(struct AdapterControlBlock *acb) |
| 649 | { |
| 650 | struct MessageUnit __iomem *reg = acb->pmu; |
| 651 | |
| 652 | acb->acb_flags &= ~ACB_F_MSG_START_BGRB; |
| 653 | writel(ARCMSR_INBOUND_MESG0_STOP_BGRB, ®->inbound_msgaddr0); |
| 654 | if (arcmsr_wait_msgint_ready(acb)) |
| 655 | printk(KERN_NOTICE |
| 656 | "arcmsr%d: wait 'stop adapter background rebulid' timeout \n" |
| 657 | , acb->host->host_no); |
| 658 | } |
| 659 | |
| 660 | static void arcmsr_free_ccb_pool(struct AdapterControlBlock *acb) |
| 661 | { |
| 662 | dma_free_coherent(&acb->pdev->dev, |
| 663 | ARCMSR_MAX_FREECCB_NUM * sizeof (struct CommandControlBlock) + 0x20, |
| 664 | acb->dma_coherent, |
| 665 | acb->dma_coherent_handle); |
| 666 | } |
| 667 | |
| 668 | static irqreturn_t arcmsr_interrupt(struct AdapterControlBlock *acb) |
| 669 | { |
| 670 | struct MessageUnit __iomem *reg = acb->pmu; |
| 671 | struct CommandControlBlock *ccb; |
| 672 | uint32_t flag_ccb, outbound_intstatus, outbound_doorbell; |
| 673 | |
| 674 | outbound_intstatus = readl(®->outbound_intstatus) |
| 675 | & acb->outbound_int_enable; |
| 676 | writel(outbound_intstatus, ®->outbound_intstatus); |
| 677 | if (outbound_intstatus & ARCMSR_MU_OUTBOUND_DOORBELL_INT) { |
| 678 | outbound_doorbell = readl(®->outbound_doorbell); |
| 679 | writel(outbound_doorbell, ®->outbound_doorbell); |
| 680 | if (outbound_doorbell & ARCMSR_OUTBOUND_IOP331_DATA_WRITE_OK) { |
| 681 | struct QBUFFER __iomem * prbuffer = |
| 682 | (struct QBUFFER __iomem *) ®->message_rbuffer; |
| 683 | uint8_t __iomem * iop_data = (uint8_t __iomem *)prbuffer->data; |
| 684 | int32_t my_empty_len, iop_len, rqbuf_firstindex, rqbuf_lastindex; |
| 685 | |
| 686 | rqbuf_lastindex = acb->rqbuf_lastindex; |
| 687 | rqbuf_firstindex = acb->rqbuf_firstindex; |
| 688 | iop_len = readl(&prbuffer->data_len); |
| 689 | my_empty_len = (rqbuf_firstindex - rqbuf_lastindex - 1) |
| 690 | &(ARCMSR_MAX_QBUFFER - 1); |
| 691 | if (my_empty_len >= iop_len) { |
| 692 | while (iop_len > 0) { |
| 693 | acb->rqbuffer[acb->rqbuf_lastindex] = readb(iop_data); |
| 694 | acb->rqbuf_lastindex++; |
| 695 | acb->rqbuf_lastindex %= ARCMSR_MAX_QBUFFER; |
| 696 | iop_data++; |
| 697 | iop_len--; |
| 698 | } |
| 699 | writel(ARCMSR_INBOUND_DRIVER_DATA_READ_OK, |
| 700 | ®->inbound_doorbell); |
| 701 | } else |
| 702 | acb->acb_flags |= ACB_F_IOPDATA_OVERFLOW; |
| 703 | } |
| 704 | if (outbound_doorbell & ARCMSR_OUTBOUND_IOP331_DATA_READ_OK) { |
| 705 | acb->acb_flags |= ACB_F_MESSAGE_WQBUFFER_READED; |
| 706 | if (acb->wqbuf_firstindex != acb->wqbuf_lastindex) { |
| 707 | struct QBUFFER __iomem * pwbuffer = |
| 708 | (struct QBUFFER __iomem *) ®->message_wbuffer; |
| 709 | uint8_t __iomem * iop_data = (uint8_t __iomem *) pwbuffer->data; |
| 710 | int32_t allxfer_len = 0; |
| 711 | |
| 712 | acb->acb_flags &= (~ACB_F_MESSAGE_WQBUFFER_READED); |
| 713 | while ((acb->wqbuf_firstindex != acb->wqbuf_lastindex) |
| 714 | && (allxfer_len < 124)) { |
| 715 | writeb(acb->wqbuffer[acb->wqbuf_firstindex], iop_data); |
| 716 | acb->wqbuf_firstindex++; |
| 717 | acb->wqbuf_firstindex %= ARCMSR_MAX_QBUFFER; |
| 718 | iop_data++; |
| 719 | allxfer_len++; |
| 720 | } |
| 721 | writel(allxfer_len, &pwbuffer->data_len); |
| 722 | writel(ARCMSR_INBOUND_DRIVER_DATA_WRITE_OK, |
| 723 | ®->inbound_doorbell); |
| 724 | } |
| 725 | if (acb->wqbuf_firstindex == acb->wqbuf_lastindex) |
| 726 | acb->acb_flags |= ACB_F_MESSAGE_WQBUFFER_CLEARED; |
| 727 | } |
| 728 | } |
| 729 | if (outbound_intstatus & ARCMSR_MU_OUTBOUND_POSTQUEUE_INT) { |
| 730 | int id, lun; |
| 731 | /* |
| 732 | **************************************************************** |
nickcheng(鄭守謙 | a1f6e02 | 2007-06-15 11:43:32 +0800 | [diff] [blame^] | 733 | ** areca cdb command done |
Erich Chen | 1c57e86 | 2006-07-12 08:59:32 -0700 | [diff] [blame] | 734 | **************************************************************** |
| 735 | */ |
| 736 | while (1) { |
| 737 | if ((flag_ccb = readl(®->outbound_queueport)) == 0xFFFFFFFF) |
| 738 | break;/*chip FIFO no ccb for completion already*/ |
| 739 | /* check if command done with no error*/ |
| 740 | ccb = (struct CommandControlBlock *)(acb->vir2phy_offset + |
| 741 | (flag_ccb << 5)); |
| 742 | if ((ccb->acb != acb) || (ccb->startdone != ARCMSR_CCB_START)) { |
| 743 | if (ccb->startdone == ARCMSR_CCB_ABORTED) { |
nickcheng(鄭守謙 | a1f6e02 | 2007-06-15 11:43:32 +0800 | [diff] [blame^] | 744 | struct scsi_cmnd *abortcmd = ccb->pcmd; |
Erich Chen | 1c57e86 | 2006-07-12 08:59:32 -0700 | [diff] [blame] | 745 | if (abortcmd) { |
| 746 | abortcmd->result |= DID_ABORT >> 16; |
| 747 | arcmsr_ccb_complete(ccb, 1); |
| 748 | printk(KERN_NOTICE |
nickcheng(鄭守謙 | a1f6e02 | 2007-06-15 11:43:32 +0800 | [diff] [blame^] | 749 | "arcmsr%d: ccb ='0x%p' isr got aborted command \n" |
Erich Chen | 1c57e86 | 2006-07-12 08:59:32 -0700 | [diff] [blame] | 750 | , acb->host->host_no, ccb); |
| 751 | } |
| 752 | continue; |
| 753 | } |
| 754 | printk(KERN_NOTICE |
nickcheng(鄭守謙 | a1f6e02 | 2007-06-15 11:43:32 +0800 | [diff] [blame^] | 755 | "arcmsr%d: isr get an illegal ccb command done acb = '0x%p'" |
| 756 | "ccb = '0x%p' ccbacb = '0x%p' startdone = 0x%x" |
| 757 | " ccboutstandingcount = %d \n" |
Erich Chen | 1c57e86 | 2006-07-12 08:59:32 -0700 | [diff] [blame] | 758 | , acb->host->host_no |
| 759 | , acb |
| 760 | , ccb |
| 761 | , ccb->acb |
| 762 | , ccb->startdone |
| 763 | , atomic_read(&acb->ccboutstandingcount)); |
| 764 | continue; |
| 765 | } |
| 766 | id = ccb->pcmd->device->id; |
| 767 | lun = ccb->pcmd->device->lun; |
| 768 | if (!(flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR)) { |
| 769 | if (acb->devstate[id][lun] == ARECA_RAID_GONE) |
| 770 | acb->devstate[id][lun] = ARECA_RAID_GOOD; |
| 771 | ccb->pcmd->result = DID_OK << 16; |
| 772 | arcmsr_ccb_complete(ccb, 1); |
| 773 | } else { |
| 774 | switch(ccb->arcmsr_cdb.DeviceStatus) { |
| 775 | case ARCMSR_DEV_SELECT_TIMEOUT: { |
| 776 | acb->devstate[id][lun] = ARECA_RAID_GONE; |
nickcheng(鄭守謙 | a1f6e02 | 2007-06-15 11:43:32 +0800 | [diff] [blame^] | 777 | ccb->pcmd->result = DID_NO_CONNECT << 16; |
Erich Chen | 1c57e86 | 2006-07-12 08:59:32 -0700 | [diff] [blame] | 778 | arcmsr_ccb_complete(ccb, 1); |
| 779 | } |
| 780 | break; |
| 781 | case ARCMSR_DEV_ABORTED: |
| 782 | case ARCMSR_DEV_INIT_FAIL: { |
| 783 | acb->devstate[id][lun] = ARECA_RAID_GONE; |
| 784 | ccb->pcmd->result = DID_BAD_TARGET << 16; |
| 785 | arcmsr_ccb_complete(ccb, 1); |
| 786 | } |
| 787 | break; |
| 788 | case ARCMSR_DEV_CHECK_CONDITION: { |
| 789 | acb->devstate[id][lun] = ARECA_RAID_GOOD; |
| 790 | arcmsr_report_sense_info(ccb); |
| 791 | arcmsr_ccb_complete(ccb, 1); |
| 792 | } |
| 793 | break; |
| 794 | default: |
| 795 | printk(KERN_NOTICE |
nickcheng(鄭守謙 | a1f6e02 | 2007-06-15 11:43:32 +0800 | [diff] [blame^] | 796 | "arcmsr%d: scsi id = %d lun = %d" |
| 797 | " isr get command error done, " |
Erich Chen | 1c57e86 | 2006-07-12 08:59:32 -0700 | [diff] [blame] | 798 | "but got unknown DeviceStatus = 0x%x \n" |
| 799 | , acb->host->host_no |
| 800 | , id |
| 801 | , lun |
| 802 | , ccb->arcmsr_cdb.DeviceStatus); |
| 803 | acb->devstate[id][lun] = ARECA_RAID_GONE; |
| 804 | ccb->pcmd->result = DID_NO_CONNECT << 16; |
| 805 | arcmsr_ccb_complete(ccb, 1); |
| 806 | break; |
| 807 | } |
| 808 | } |
| 809 | }/*drain reply FIFO*/ |
| 810 | } |
| 811 | if (!(outbound_intstatus & ARCMSR_MU_OUTBOUND_HANDLE_INT)) |
| 812 | return IRQ_NONE; |
| 813 | return IRQ_HANDLED; |
| 814 | } |
| 815 | |
| 816 | static void arcmsr_iop_parking(struct AdapterControlBlock *acb) |
| 817 | { |
| 818 | if (acb) { |
| 819 | /* stop adapter background rebuild */ |
| 820 | if (acb->acb_flags & ACB_F_MSG_START_BGRB) { |
| 821 | acb->acb_flags &= ~ACB_F_MSG_START_BGRB; |
| 822 | arcmsr_stop_adapter_bgrb(acb); |
| 823 | arcmsr_flush_adapter_cache(acb); |
| 824 | } |
| 825 | } |
| 826 | } |
| 827 | |
| 828 | static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb, struct scsi_cmnd *cmd) |
| 829 | { |
| 830 | struct MessageUnit __iomem *reg = acb->pmu; |
| 831 | struct CMD_MESSAGE_FIELD *pcmdmessagefld; |
| 832 | int retvalue = 0, transfer_len = 0; |
| 833 | char *buffer; |
FUJITA Tomonori | deff262 | 2007-05-14 19:25:56 +0900 | [diff] [blame] | 834 | struct scatterlist *sg; |
Erich Chen | 1c57e86 | 2006-07-12 08:59:32 -0700 | [diff] [blame] | 835 | uint32_t controlcode = (uint32_t ) cmd->cmnd[5] << 24 | |
| 836 | (uint32_t ) cmd->cmnd[6] << 16 | |
| 837 | (uint32_t ) cmd->cmnd[7] << 8 | |
| 838 | (uint32_t ) cmd->cmnd[8]; |
| 839 | /* 4 bytes: Areca io control code */ |
Erich Chen | 1c57e86 | 2006-07-12 08:59:32 -0700 | [diff] [blame] | 840 | |
FUJITA Tomonori | deff262 | 2007-05-14 19:25:56 +0900 | [diff] [blame] | 841 | sg = scsi_sglist(cmd); |
| 842 | buffer = kmap_atomic(sg->page, KM_IRQ0) + sg->offset; |
| 843 | if (scsi_sg_count(cmd) > 1) { |
| 844 | retvalue = ARCMSR_MESSAGE_FAIL; |
| 845 | goto message_out; |
Erich Chen | 1c57e86 | 2006-07-12 08:59:32 -0700 | [diff] [blame] | 846 | } |
FUJITA Tomonori | deff262 | 2007-05-14 19:25:56 +0900 | [diff] [blame] | 847 | transfer_len += sg->length; |
| 848 | |
Erich Chen | 1c57e86 | 2006-07-12 08:59:32 -0700 | [diff] [blame] | 849 | if (transfer_len > sizeof(struct CMD_MESSAGE_FIELD)) { |
| 850 | retvalue = ARCMSR_MESSAGE_FAIL; |
| 851 | goto message_out; |
| 852 | } |
| 853 | pcmdmessagefld = (struct CMD_MESSAGE_FIELD *) buffer; |
| 854 | switch(controlcode) { |
| 855 | case ARCMSR_MESSAGE_READ_RQBUFFER: { |
| 856 | unsigned long *ver_addr; |
| 857 | dma_addr_t buf_handle; |
| 858 | uint8_t *pQbuffer, *ptmpQbuffer; |
| 859 | int32_t allxfer_len = 0; |
| 860 | |
| 861 | ver_addr = pci_alloc_consistent(acb->pdev, 1032, &buf_handle); |
| 862 | if (!ver_addr) { |
| 863 | retvalue = ARCMSR_MESSAGE_FAIL; |
| 864 | goto message_out; |
| 865 | } |
| 866 | ptmpQbuffer = (uint8_t *) ver_addr; |
| 867 | while ((acb->rqbuf_firstindex != acb->rqbuf_lastindex) |
| 868 | && (allxfer_len < 1031)) { |
| 869 | pQbuffer = &acb->rqbuffer[acb->rqbuf_firstindex]; |
| 870 | memcpy(ptmpQbuffer, pQbuffer, 1); |
| 871 | acb->rqbuf_firstindex++; |
| 872 | acb->rqbuf_firstindex %= ARCMSR_MAX_QBUFFER; |
| 873 | ptmpQbuffer++; |
| 874 | allxfer_len++; |
| 875 | } |
| 876 | if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) { |
| 877 | struct QBUFFER __iomem * prbuffer = (struct QBUFFER __iomem *) |
| 878 | ®->message_rbuffer; |
| 879 | uint8_t __iomem * iop_data = (uint8_t __iomem *)prbuffer->data; |
| 880 | int32_t iop_len; |
| 881 | |
| 882 | acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW; |
| 883 | iop_len = readl(&prbuffer->data_len); |
| 884 | while (iop_len > 0) { |
| 885 | acb->rqbuffer[acb->rqbuf_lastindex] = readb(iop_data); |
| 886 | acb->rqbuf_lastindex++; |
| 887 | acb->rqbuf_lastindex %= ARCMSR_MAX_QBUFFER; |
| 888 | iop_data++; |
| 889 | iop_len--; |
| 890 | } |
| 891 | writel(ARCMSR_INBOUND_DRIVER_DATA_READ_OK, |
| 892 | ®->inbound_doorbell); |
| 893 | } |
| 894 | memcpy(pcmdmessagefld->messagedatabuffer, |
| 895 | (uint8_t *)ver_addr, allxfer_len); |
| 896 | pcmdmessagefld->cmdmessage.Length = allxfer_len; |
| 897 | pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK; |
| 898 | pci_free_consistent(acb->pdev, 1032, ver_addr, buf_handle); |
| 899 | } |
| 900 | break; |
| 901 | case ARCMSR_MESSAGE_WRITE_WQBUFFER: { |
| 902 | unsigned long *ver_addr; |
| 903 | dma_addr_t buf_handle; |
| 904 | int32_t my_empty_len, user_len, wqbuf_firstindex, wqbuf_lastindex; |
| 905 | uint8_t *pQbuffer, *ptmpuserbuffer; |
| 906 | |
| 907 | ver_addr = pci_alloc_consistent(acb->pdev, 1032, &buf_handle); |
| 908 | if (!ver_addr) { |
| 909 | retvalue = ARCMSR_MESSAGE_FAIL; |
| 910 | goto message_out; |
| 911 | } |
| 912 | ptmpuserbuffer = (uint8_t *)ver_addr; |
| 913 | user_len = pcmdmessagefld->cmdmessage.Length; |
| 914 | memcpy(ptmpuserbuffer, pcmdmessagefld->messagedatabuffer, user_len); |
| 915 | wqbuf_lastindex = acb->wqbuf_lastindex; |
| 916 | wqbuf_firstindex = acb->wqbuf_firstindex; |
| 917 | if (wqbuf_lastindex != wqbuf_firstindex) { |
| 918 | struct SENSE_DATA *sensebuffer = |
| 919 | (struct SENSE_DATA *)cmd->sense_buffer; |
| 920 | arcmsr_post_Qbuffer(acb); |
| 921 | /* has error report sensedata */ |
| 922 | sensebuffer->ErrorCode = 0x70; |
| 923 | sensebuffer->SenseKey = ILLEGAL_REQUEST; |
| 924 | sensebuffer->AdditionalSenseLength = 0x0A; |
| 925 | sensebuffer->AdditionalSenseCode = 0x20; |
| 926 | sensebuffer->Valid = 1; |
| 927 | retvalue = ARCMSR_MESSAGE_FAIL; |
| 928 | } else { |
| 929 | my_empty_len = (wqbuf_firstindex-wqbuf_lastindex - 1) |
| 930 | &(ARCMSR_MAX_QBUFFER - 1); |
| 931 | if (my_empty_len >= user_len) { |
| 932 | while (user_len > 0) { |
| 933 | pQbuffer = |
| 934 | &acb->wqbuffer[acb->wqbuf_lastindex]; |
| 935 | memcpy(pQbuffer, ptmpuserbuffer, 1); |
| 936 | acb->wqbuf_lastindex++; |
| 937 | acb->wqbuf_lastindex %= ARCMSR_MAX_QBUFFER; |
| 938 | ptmpuserbuffer++; |
| 939 | user_len--; |
| 940 | } |
| 941 | if (acb->acb_flags & ACB_F_MESSAGE_WQBUFFER_CLEARED) { |
| 942 | acb->acb_flags &= |
| 943 | ~ACB_F_MESSAGE_WQBUFFER_CLEARED; |
| 944 | arcmsr_post_Qbuffer(acb); |
| 945 | } |
| 946 | } else { |
| 947 | /* has error report sensedata */ |
| 948 | struct SENSE_DATA *sensebuffer = |
| 949 | (struct SENSE_DATA *)cmd->sense_buffer; |
| 950 | sensebuffer->ErrorCode = 0x70; |
| 951 | sensebuffer->SenseKey = ILLEGAL_REQUEST; |
| 952 | sensebuffer->AdditionalSenseLength = 0x0A; |
| 953 | sensebuffer->AdditionalSenseCode = 0x20; |
| 954 | sensebuffer->Valid = 1; |
| 955 | retvalue = ARCMSR_MESSAGE_FAIL; |
| 956 | } |
| 957 | } |
| 958 | pci_free_consistent(acb->pdev, 1032, ver_addr, buf_handle); |
| 959 | } |
| 960 | break; |
| 961 | case ARCMSR_MESSAGE_CLEAR_RQBUFFER: { |
| 962 | uint8_t *pQbuffer = acb->rqbuffer; |
| 963 | |
| 964 | if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) { |
| 965 | acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW; |
| 966 | writel(ARCMSR_INBOUND_DRIVER_DATA_READ_OK, |
| 967 | ®->inbound_doorbell); |
| 968 | } |
| 969 | acb->acb_flags |= ACB_F_MESSAGE_RQBUFFER_CLEARED; |
| 970 | acb->rqbuf_firstindex = 0; |
| 971 | acb->rqbuf_lastindex = 0; |
| 972 | memset(pQbuffer, 0, ARCMSR_MAX_QBUFFER); |
| 973 | pcmdmessagefld->cmdmessage.ReturnCode = |
| 974 | ARCMSR_MESSAGE_RETURNCODE_OK; |
| 975 | } |
| 976 | break; |
| 977 | case ARCMSR_MESSAGE_CLEAR_WQBUFFER: { |
| 978 | uint8_t *pQbuffer = acb->wqbuffer; |
| 979 | |
| 980 | if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) { |
| 981 | acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW; |
| 982 | writel(ARCMSR_INBOUND_DRIVER_DATA_READ_OK |
| 983 | , ®->inbound_doorbell); |
| 984 | } |
| 985 | acb->acb_flags |= |
| 986 | (ACB_F_MESSAGE_WQBUFFER_CLEARED | |
| 987 | ACB_F_MESSAGE_WQBUFFER_READED); |
| 988 | acb->wqbuf_firstindex = 0; |
| 989 | acb->wqbuf_lastindex = 0; |
| 990 | memset(pQbuffer, 0, ARCMSR_MAX_QBUFFER); |
| 991 | pcmdmessagefld->cmdmessage.ReturnCode = |
| 992 | ARCMSR_MESSAGE_RETURNCODE_OK; |
| 993 | } |
| 994 | break; |
| 995 | case ARCMSR_MESSAGE_CLEAR_ALLQBUFFER: { |
| 996 | uint8_t *pQbuffer; |
| 997 | |
| 998 | if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) { |
| 999 | acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW; |
| 1000 | writel(ARCMSR_INBOUND_DRIVER_DATA_READ_OK |
| 1001 | , ®->inbound_doorbell); |
| 1002 | } |
| 1003 | acb->acb_flags |= |
| 1004 | (ACB_F_MESSAGE_WQBUFFER_CLEARED |
| 1005 | | ACB_F_MESSAGE_RQBUFFER_CLEARED |
| 1006 | | ACB_F_MESSAGE_WQBUFFER_READED); |
| 1007 | acb->rqbuf_firstindex = 0; |
| 1008 | acb->rqbuf_lastindex = 0; |
| 1009 | acb->wqbuf_firstindex = 0; |
| 1010 | acb->wqbuf_lastindex = 0; |
| 1011 | pQbuffer = acb->rqbuffer; |
| 1012 | memset(pQbuffer, 0, sizeof (struct QBUFFER)); |
| 1013 | pQbuffer = acb->wqbuffer; |
| 1014 | memset(pQbuffer, 0, sizeof (struct QBUFFER)); |
| 1015 | pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK; |
| 1016 | } |
| 1017 | break; |
| 1018 | case ARCMSR_MESSAGE_RETURN_CODE_3F: { |
| 1019 | pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_3F; |
| 1020 | } |
| 1021 | break; |
| 1022 | case ARCMSR_MESSAGE_SAY_HELLO: { |
| 1023 | int8_t * hello_string = "Hello! I am ARCMSR"; |
| 1024 | |
| 1025 | memcpy(pcmdmessagefld->messagedatabuffer, hello_string |
| 1026 | , (int16_t)strlen(hello_string)); |
| 1027 | pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK; |
| 1028 | } |
| 1029 | break; |
| 1030 | case ARCMSR_MESSAGE_SAY_GOODBYE: |
| 1031 | arcmsr_iop_parking(acb); |
| 1032 | break; |
| 1033 | case ARCMSR_MESSAGE_FLUSH_ADAPTER_CACHE: |
| 1034 | arcmsr_flush_adapter_cache(acb); |
| 1035 | break; |
| 1036 | default: |
| 1037 | retvalue = ARCMSR_MESSAGE_FAIL; |
| 1038 | } |
| 1039 | message_out: |
FUJITA Tomonori | deff262 | 2007-05-14 19:25:56 +0900 | [diff] [blame] | 1040 | sg = scsi_sglist(cmd); |
| 1041 | kunmap_atomic(buffer - sg->offset, KM_IRQ0); |
Erich Chen | 1c57e86 | 2006-07-12 08:59:32 -0700 | [diff] [blame] | 1042 | |
Erich Chen | 1c57e86 | 2006-07-12 08:59:32 -0700 | [diff] [blame] | 1043 | return retvalue; |
| 1044 | } |
| 1045 | |
| 1046 | static struct CommandControlBlock *arcmsr_get_freeccb(struct AdapterControlBlock *acb) |
| 1047 | { |
| 1048 | struct list_head *head = &acb->ccb_free_list; |
| 1049 | struct CommandControlBlock *ccb = NULL; |
| 1050 | |
| 1051 | if (!list_empty(head)) { |
| 1052 | ccb = list_entry(head->next, struct CommandControlBlock, list); |
| 1053 | list_del(head->next); |
| 1054 | } |
| 1055 | return ccb; |
| 1056 | } |
| 1057 | |
| 1058 | static void arcmsr_handle_virtual_command(struct AdapterControlBlock *acb, |
| 1059 | struct scsi_cmnd *cmd) |
| 1060 | { |
| 1061 | switch (cmd->cmnd[0]) { |
| 1062 | case INQUIRY: { |
| 1063 | unsigned char inqdata[36]; |
| 1064 | char *buffer; |
FUJITA Tomonori | deff262 | 2007-05-14 19:25:56 +0900 | [diff] [blame] | 1065 | struct scatterlist *sg; |
Erich Chen | 1c57e86 | 2006-07-12 08:59:32 -0700 | [diff] [blame] | 1066 | |
| 1067 | if (cmd->device->lun) { |
| 1068 | cmd->result = (DID_TIME_OUT << 16); |
| 1069 | cmd->scsi_done(cmd); |
| 1070 | return; |
| 1071 | } |
| 1072 | inqdata[0] = TYPE_PROCESSOR; |
| 1073 | /* Periph Qualifier & Periph Dev Type */ |
| 1074 | inqdata[1] = 0; |
| 1075 | /* rem media bit & Dev Type Modifier */ |
| 1076 | inqdata[2] = 0; |
nickcheng(鄭守謙 | a1f6e02 | 2007-06-15 11:43:32 +0800 | [diff] [blame^] | 1077 | /* ISO, ECMA, & ANSI versions */ |
Erich Chen | 1c57e86 | 2006-07-12 08:59:32 -0700 | [diff] [blame] | 1078 | inqdata[4] = 31; |
| 1079 | /* length of additional data */ |
| 1080 | strncpy(&inqdata[8], "Areca ", 8); |
| 1081 | /* Vendor Identification */ |
| 1082 | strncpy(&inqdata[16], "RAID controller ", 16); |
| 1083 | /* Product Identification */ |
| 1084 | strncpy(&inqdata[32], "R001", 4); /* Product Revision */ |
Erich Chen | 1c57e86 | 2006-07-12 08:59:32 -0700 | [diff] [blame] | 1085 | |
FUJITA Tomonori | deff262 | 2007-05-14 19:25:56 +0900 | [diff] [blame] | 1086 | sg = scsi_sglist(cmd); |
| 1087 | buffer = kmap_atomic(sg->page, KM_IRQ0) + sg->offset; |
| 1088 | |
Erich Chen | 1c57e86 | 2006-07-12 08:59:32 -0700 | [diff] [blame] | 1089 | memcpy(buffer, inqdata, sizeof(inqdata)); |
FUJITA Tomonori | deff262 | 2007-05-14 19:25:56 +0900 | [diff] [blame] | 1090 | sg = scsi_sglist(cmd); |
| 1091 | kunmap_atomic(buffer - sg->offset, KM_IRQ0); |
Erich Chen | 1c57e86 | 2006-07-12 08:59:32 -0700 | [diff] [blame] | 1092 | |
Erich Chen | 1c57e86 | 2006-07-12 08:59:32 -0700 | [diff] [blame] | 1093 | cmd->scsi_done(cmd); |
| 1094 | } |
| 1095 | break; |
| 1096 | case WRITE_BUFFER: |
| 1097 | case READ_BUFFER: { |
| 1098 | if (arcmsr_iop_message_xfer(acb, cmd)) |
| 1099 | cmd->result = (DID_ERROR << 16); |
| 1100 | cmd->scsi_done(cmd); |
| 1101 | } |
| 1102 | break; |
| 1103 | default: |
| 1104 | cmd->scsi_done(cmd); |
| 1105 | } |
| 1106 | } |
| 1107 | |
| 1108 | static int arcmsr_queue_command(struct scsi_cmnd *cmd, |
| 1109 | void (* done)(struct scsi_cmnd *)) |
| 1110 | { |
| 1111 | struct Scsi_Host *host = cmd->device->host; |
| 1112 | struct AdapterControlBlock *acb = |
| 1113 | (struct AdapterControlBlock *) host->hostdata; |
| 1114 | struct CommandControlBlock *ccb; |
| 1115 | int target = cmd->device->id; |
| 1116 | int lun = cmd->device->lun; |
| 1117 | |
| 1118 | cmd->scsi_done = done; |
| 1119 | cmd->host_scribble = NULL; |
| 1120 | cmd->result = 0; |
| 1121 | if (acb->acb_flags & ACB_F_BUS_RESET) { |
| 1122 | printk(KERN_NOTICE "arcmsr%d: bus reset" |
| 1123 | " and return busy \n" |
| 1124 | , acb->host->host_no); |
| 1125 | return SCSI_MLQUEUE_HOST_BUSY; |
| 1126 | } |
nickcheng(鄭守謙 | a1f6e02 | 2007-06-15 11:43:32 +0800 | [diff] [blame^] | 1127 | if (target == 16) { |
Erich Chen | 1c57e86 | 2006-07-12 08:59:32 -0700 | [diff] [blame] | 1128 | /* virtual device for iop message transfer */ |
| 1129 | arcmsr_handle_virtual_command(acb, cmd); |
| 1130 | return 0; |
| 1131 | } |
| 1132 | if (acb->devstate[target][lun] == ARECA_RAID_GONE) { |
| 1133 | uint8_t block_cmd; |
| 1134 | |
| 1135 | block_cmd = cmd->cmnd[0] & 0x0f; |
| 1136 | if (block_cmd == 0x08 || block_cmd == 0x0a) { |
| 1137 | printk(KERN_NOTICE |
| 1138 | "arcmsr%d: block 'read/write'" |
| 1139 | "command with gone raid volume" |
nickcheng(鄭守謙 | a1f6e02 | 2007-06-15 11:43:32 +0800 | [diff] [blame^] | 1140 | " Cmd = %2x, TargetId = %d, Lun = %d \n" |
Erich Chen | 1c57e86 | 2006-07-12 08:59:32 -0700 | [diff] [blame] | 1141 | , acb->host->host_no |
| 1142 | , cmd->cmnd[0] |
| 1143 | , target, lun); |
| 1144 | cmd->result = (DID_NO_CONNECT << 16); |
| 1145 | cmd->scsi_done(cmd); |
| 1146 | return 0; |
| 1147 | } |
| 1148 | } |
| 1149 | if (atomic_read(&acb->ccboutstandingcount) >= |
| 1150 | ARCMSR_MAX_OUTSTANDING_CMD) |
| 1151 | return SCSI_MLQUEUE_HOST_BUSY; |
| 1152 | |
| 1153 | ccb = arcmsr_get_freeccb(acb); |
| 1154 | if (!ccb) |
| 1155 | return SCSI_MLQUEUE_HOST_BUSY; |
| 1156 | arcmsr_build_ccb(acb, ccb, cmd); |
| 1157 | arcmsr_post_ccb(acb, ccb); |
| 1158 | return 0; |
| 1159 | } |
| 1160 | |
| 1161 | static void arcmsr_get_firmware_spec(struct AdapterControlBlock *acb) |
| 1162 | { |
| 1163 | struct MessageUnit __iomem *reg = acb->pmu; |
| 1164 | char *acb_firm_model = acb->firm_model; |
| 1165 | char *acb_firm_version = acb->firm_version; |
| 1166 | char __iomem *iop_firm_model = (char __iomem *) ®->message_rwbuffer[15]; |
| 1167 | char __iomem *iop_firm_version = (char __iomem *) ®->message_rwbuffer[17]; |
| 1168 | int count; |
| 1169 | |
| 1170 | writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, ®->inbound_msgaddr0); |
| 1171 | if (arcmsr_wait_msgint_ready(acb)) |
| 1172 | printk(KERN_NOTICE |
| 1173 | "arcmsr%d: wait " |
| 1174 | "'get adapter firmware miscellaneous data' timeout \n" |
| 1175 | , acb->host->host_no); |
| 1176 | count = 8; |
| 1177 | while (count) { |
| 1178 | *acb_firm_model = readb(iop_firm_model); |
| 1179 | acb_firm_model++; |
| 1180 | iop_firm_model++; |
| 1181 | count--; |
| 1182 | } |
| 1183 | count = 16; |
| 1184 | while (count) { |
| 1185 | *acb_firm_version = readb(iop_firm_version); |
| 1186 | acb_firm_version++; |
| 1187 | iop_firm_version++; |
| 1188 | count--; |
| 1189 | } |
| 1190 | printk(KERN_INFO |
| 1191 | "ARECA RAID ADAPTER%d: FIRMWARE VERSION %s \n" |
| 1192 | , acb->host->host_no |
| 1193 | , acb->firm_version); |
| 1194 | acb->firm_request_len = readl(®->message_rwbuffer[1]); |
| 1195 | acb->firm_numbers_queue = readl(®->message_rwbuffer[2]); |
| 1196 | acb->firm_sdram_size = readl(®->message_rwbuffer[3]); |
| 1197 | acb->firm_hd_channels = readl(®->message_rwbuffer[4]); |
| 1198 | } |
| 1199 | |
| 1200 | static void arcmsr_polling_ccbdone(struct AdapterControlBlock *acb, |
| 1201 | struct CommandControlBlock *poll_ccb) |
| 1202 | { |
| 1203 | struct MessageUnit __iomem *reg = acb->pmu; |
| 1204 | struct CommandControlBlock *ccb; |
| 1205 | uint32_t flag_ccb, outbound_intstatus, poll_ccb_done = 0, poll_count = 0; |
| 1206 | int id, lun; |
| 1207 | |
| 1208 | polling_ccb_retry: |
| 1209 | poll_count++; |
| 1210 | outbound_intstatus = readl(®->outbound_intstatus) |
| 1211 | & acb->outbound_int_enable; |
| 1212 | writel(outbound_intstatus, ®->outbound_intstatus);/*clear interrupt*/ |
| 1213 | while (1) { |
| 1214 | if ((flag_ccb = readl(®->outbound_queueport)) == 0xFFFFFFFF) { |
| 1215 | if (poll_ccb_done) |
| 1216 | break; |
| 1217 | else { |
| 1218 | msleep(25); |
| 1219 | if (poll_count > 100) |
| 1220 | break; |
| 1221 | goto polling_ccb_retry; |
| 1222 | } |
| 1223 | } |
| 1224 | ccb = (struct CommandControlBlock *) |
| 1225 | (acb->vir2phy_offset + (flag_ccb << 5)); |
| 1226 | if ((ccb->acb != acb) || |
| 1227 | (ccb->startdone != ARCMSR_CCB_START)) { |
| 1228 | if ((ccb->startdone == ARCMSR_CCB_ABORTED) || |
| 1229 | (ccb == poll_ccb)) { |
| 1230 | printk(KERN_NOTICE |
nickcheng(鄭守謙 | a1f6e02 | 2007-06-15 11:43:32 +0800 | [diff] [blame^] | 1231 | "arcmsr%d: scsi id = %d lun = %d ccb = '0x%p'" |
Erich Chen | 1c57e86 | 2006-07-12 08:59:32 -0700 | [diff] [blame] | 1232 | " poll command abort successfully \n" |
| 1233 | , acb->host->host_no |
| 1234 | , ccb->pcmd->device->id |
| 1235 | , ccb->pcmd->device->lun |
| 1236 | , ccb); |
| 1237 | ccb->pcmd->result = DID_ABORT << 16; |
| 1238 | arcmsr_ccb_complete(ccb, 1); |
| 1239 | poll_ccb_done = 1; |
| 1240 | continue; |
| 1241 | } |
| 1242 | printk(KERN_NOTICE |
| 1243 | "arcmsr%d: polling get an illegal ccb" |
nickcheng(鄭守謙 | a1f6e02 | 2007-06-15 11:43:32 +0800 | [diff] [blame^] | 1244 | " command done ccb ='0x%p'" |
| 1245 | "ccboutstandingcount = %d \n" |
Erich Chen | 1c57e86 | 2006-07-12 08:59:32 -0700 | [diff] [blame] | 1246 | , acb->host->host_no |
| 1247 | , ccb |
| 1248 | , atomic_read(&acb->ccboutstandingcount)); |
| 1249 | continue; |
| 1250 | } |
| 1251 | id = ccb->pcmd->device->id; |
| 1252 | lun = ccb->pcmd->device->lun; |
| 1253 | if (!(flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR)) { |
| 1254 | if (acb->devstate[id][lun] == ARECA_RAID_GONE) |
| 1255 | acb->devstate[id][lun] = ARECA_RAID_GOOD; |
| 1256 | ccb->pcmd->result = DID_OK << 16; |
| 1257 | arcmsr_ccb_complete(ccb, 1); |
| 1258 | } else { |
| 1259 | switch(ccb->arcmsr_cdb.DeviceStatus) { |
| 1260 | case ARCMSR_DEV_SELECT_TIMEOUT: { |
| 1261 | acb->devstate[id][lun] = ARECA_RAID_GONE; |
nickcheng(鄭守謙 | a1f6e02 | 2007-06-15 11:43:32 +0800 | [diff] [blame^] | 1262 | ccb->pcmd->result = DID_NO_CONNECT << 16; |
Erich Chen | 1c57e86 | 2006-07-12 08:59:32 -0700 | [diff] [blame] | 1263 | arcmsr_ccb_complete(ccb, 1); |
| 1264 | } |
| 1265 | break; |
| 1266 | case ARCMSR_DEV_ABORTED: |
| 1267 | case ARCMSR_DEV_INIT_FAIL: { |
| 1268 | acb->devstate[id][lun] = ARECA_RAID_GONE; |
| 1269 | ccb->pcmd->result = DID_BAD_TARGET << 16; |
| 1270 | arcmsr_ccb_complete(ccb, 1); |
| 1271 | } |
| 1272 | break; |
| 1273 | case ARCMSR_DEV_CHECK_CONDITION: { |
| 1274 | acb->devstate[id][lun] = ARECA_RAID_GOOD; |
| 1275 | arcmsr_report_sense_info(ccb); |
| 1276 | arcmsr_ccb_complete(ccb, 1); |
| 1277 | } |
| 1278 | break; |
| 1279 | default: |
| 1280 | printk(KERN_NOTICE |
nickcheng(鄭守謙 | a1f6e02 | 2007-06-15 11:43:32 +0800 | [diff] [blame^] | 1281 | "arcmsr%d: scsi id = %d lun = %d" |
Erich Chen | 1c57e86 | 2006-07-12 08:59:32 -0700 | [diff] [blame] | 1282 | " polling and getting command error done" |
| 1283 | "but got unknown DeviceStatus = 0x%x \n" |
| 1284 | , acb->host->host_no |
| 1285 | , id |
| 1286 | , lun |
| 1287 | , ccb->arcmsr_cdb.DeviceStatus); |
| 1288 | acb->devstate[id][lun] = ARECA_RAID_GONE; |
| 1289 | ccb->pcmd->result = DID_BAD_TARGET << 16; |
| 1290 | arcmsr_ccb_complete(ccb, 1); |
| 1291 | break; |
| 1292 | } |
| 1293 | } |
| 1294 | } |
| 1295 | } |
nickcheng(鄭守謙 | a1f6e02 | 2007-06-15 11:43:32 +0800 | [diff] [blame^] | 1296 | static void arcmsr_done4_abort_postqueue(struct AdapterControlBlock *acb) |
| 1297 | { |
| 1298 | int i = 0, found = 0; |
| 1299 | int id, lun; |
| 1300 | uint32_t flag_ccb, outbound_intstatus; |
| 1301 | struct MessageUnit __iomem *reg = acb->pmu; |
| 1302 | struct CommandControlBlock *ccb; |
| 1303 | /*clear and abort all outbound posted Q*/ |
| 1304 | |
| 1305 | while (((flag_ccb = readl(®->outbound_queueport)) != 0xFFFFFFFF) && |
| 1306 | (i++ < 256)){ |
| 1307 | ccb = (struct CommandControlBlock *)(acb->vir2phy_offset + |
| 1308 | (flag_ccb << 5)); |
| 1309 | if (ccb){ |
| 1310 | if ((ccb->acb != acb)||(ccb->startdone != \ |
| 1311 | ARCMSR_CCB_START)){ |
| 1312 | printk(KERN_NOTICE "arcmsr%d: polling get \ |
| 1313 | an illegal ccb" "command done ccb = '0x%p'""ccboutstandingcount = %d \n", |
| 1314 | acb->host->host_no, ccb, |
| 1315 | atomic_read(&acb->ccboutstandingcount)); |
| 1316 | continue; |
| 1317 | } |
| 1318 | |
| 1319 | id = ccb->pcmd->device->id; |
| 1320 | lun = ccb->pcmd->device->lun; |
| 1321 | if (!(flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR)){ |
| 1322 | if (acb->devstate[id][lun] == ARECA_RAID_GONE) |
| 1323 | acb->devstate[id][lun] = ARECA_RAID_GOOD; |
| 1324 | ccb->pcmd->result = DID_OK << 16; |
| 1325 | arcmsr_ccb_complete(ccb, 1); |
| 1326 | } |
| 1327 | else { |
| 1328 | switch(ccb->arcmsr_cdb.DeviceStatus) { |
| 1329 | case ARCMSR_DEV_SELECT_TIMEOUT: { |
| 1330 | acb->devstate[id][lun] = ARECA_RAID_GONE; |
| 1331 | ccb->pcmd->result = DID_NO_CONNECT << 16; |
| 1332 | arcmsr_ccb_complete(ccb, 1); |
| 1333 | } |
| 1334 | break; |
| 1335 | |
| 1336 | case ARCMSR_DEV_ABORTED: |
| 1337 | |
| 1338 | case ARCMSR_DEV_INIT_FAIL: { |
| 1339 | acb->devstate[id][lun] = |
| 1340 | ARECA_RAID_GONE; |
| 1341 | ccb->pcmd->result = |
| 1342 | DID_BAD_TARGET << 16; |
| 1343 | arcmsr_ccb_complete(ccb, 1); |
| 1344 | } |
| 1345 | break; |
| 1346 | |
| 1347 | case ARCMSR_DEV_CHECK_CONDITION: { |
| 1348 | acb->devstate[id][lun] = |
| 1349 | ARECA_RAID_GOOD; |
| 1350 | arcmsr_report_sense_info(ccb); |
| 1351 | arcmsr_ccb_complete(ccb, 1); |
| 1352 | } |
| 1353 | break; |
| 1354 | |
| 1355 | default: |
| 1356 | printk(KERN_NOTICE |
| 1357 | "arcmsr%d: scsi id = %d \ |
| 1358 | lun = %d""polling and \ |
| 1359 | getting command error \ |
| 1360 | done""but got unknown \ |
| 1361 | DeviceStatus = 0x%x \n", |
| 1362 | acb->host->host_no, id, |
| 1363 | lun, ccb->arcmsr_cdb.DeviceStatus); |
| 1364 | acb->devstate[id][lun] = |
| 1365 | ARECA_RAID_GONE; |
| 1366 | ccb->pcmd->result = |
| 1367 | DID_BAD_TARGET << 16; |
| 1368 | arcmsr_ccb_complete(ccb, 1); |
| 1369 | break; |
| 1370 | } |
| 1371 | } |
| 1372 | found = 1; |
| 1373 | } |
| 1374 | } |
| 1375 | if (found){ |
| 1376 | outbound_intstatus = readl(®->outbound_intstatus) & \ |
| 1377 | acb->outbound_int_enable; |
| 1378 | writel(outbound_intstatus, ®->outbound_intstatus); |
| 1379 | /*clear interrupt*/ |
| 1380 | } |
| 1381 | return; |
| 1382 | } |
| 1383 | |
Erich Chen | 1c57e86 | 2006-07-12 08:59:32 -0700 | [diff] [blame] | 1384 | |
| 1385 | static void arcmsr_iop_init(struct AdapterControlBlock *acb) |
| 1386 | { |
| 1387 | struct MessageUnit __iomem *reg = acb->pmu; |
| 1388 | uint32_t intmask_org, mask, outbound_doorbell, firmware_state = 0; |
| 1389 | |
| 1390 | do { |
| 1391 | firmware_state = readl(®->outbound_msgaddr1); |
| 1392 | } while (!(firmware_state & ARCMSR_OUTBOUND_MESG1_FIRMWARE_OK)); |
| 1393 | intmask_org = readl(®->outbound_intmask) |
| 1394 | | ARCMSR_MU_OUTBOUND_MESSAGE0_INTMASKENABLE; |
| 1395 | arcmsr_get_firmware_spec(acb); |
| 1396 | |
| 1397 | acb->acb_flags |= ACB_F_MSG_START_BGRB; |
| 1398 | writel(ARCMSR_INBOUND_MESG0_START_BGRB, ®->inbound_msgaddr0); |
| 1399 | if (arcmsr_wait_msgint_ready(acb)) { |
| 1400 | printk(KERN_NOTICE "arcmsr%d: " |
| 1401 | "wait 'start adapter background rebulid' timeout\n", |
| 1402 | acb->host->host_no); |
| 1403 | } |
| 1404 | |
| 1405 | outbound_doorbell = readl(®->outbound_doorbell); |
| 1406 | writel(outbound_doorbell, ®->outbound_doorbell); |
| 1407 | writel(ARCMSR_INBOUND_DRIVER_DATA_READ_OK, ®->inbound_doorbell); |
| 1408 | mask = ~(ARCMSR_MU_OUTBOUND_POSTQUEUE_INTMASKENABLE |
| 1409 | | ARCMSR_MU_OUTBOUND_DOORBELL_INTMASKENABLE); |
| 1410 | writel(intmask_org & mask, ®->outbound_intmask); |
| 1411 | acb->outbound_int_enable = ~(intmask_org & mask) & 0x000000ff; |
| 1412 | acb->acb_flags |= ACB_F_IOP_INITED; |
| 1413 | } |
| 1414 | |
| 1415 | static void arcmsr_iop_reset(struct AdapterControlBlock *acb) |
| 1416 | { |
Erich Chen | 1c57e86 | 2006-07-12 08:59:32 -0700 | [diff] [blame] | 1417 | struct CommandControlBlock *ccb; |
| 1418 | uint32_t intmask_org; |
| 1419 | int i = 0; |
| 1420 | |
| 1421 | if (atomic_read(&acb->ccboutstandingcount) != 0) { |
| 1422 | /* talk to iop 331 outstanding command aborted */ |
| 1423 | arcmsr_abort_allcmd(acb); |
| 1424 | /* wait for 3 sec for all command aborted*/ |
| 1425 | msleep_interruptible(3000); |
| 1426 | /* disable all outbound interrupt */ |
| 1427 | intmask_org = arcmsr_disable_outbound_ints(acb); |
| 1428 | /* clear all outbound posted Q */ |
nickcheng(鄭守謙 | a1f6e02 | 2007-06-15 11:43:32 +0800 | [diff] [blame^] | 1429 | arcmsr_done4_abort_postqueue(acb); |
Erich Chen | 1c57e86 | 2006-07-12 08:59:32 -0700 | [diff] [blame] | 1430 | for (i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++) { |
| 1431 | ccb = acb->pccb_pool[i]; |
nickcheng(鄭守謙 | a1f6e02 | 2007-06-15 11:43:32 +0800 | [diff] [blame^] | 1432 | if (ccb->startdone == ARCMSR_CCB_START) { |
Erich Chen | 1c57e86 | 2006-07-12 08:59:32 -0700 | [diff] [blame] | 1433 | ccb->startdone = ARCMSR_CCB_ABORTED; |
Erich Chen | 1c57e86 | 2006-07-12 08:59:32 -0700 | [diff] [blame] | 1434 | } |
| 1435 | } |
| 1436 | /* enable all outbound interrupt */ |
| 1437 | arcmsr_enable_outbound_ints(acb, intmask_org); |
| 1438 | } |
nickcheng(鄭守謙 | a1f6e02 | 2007-06-15 11:43:32 +0800 | [diff] [blame^] | 1439 | |
Erich Chen | 1c57e86 | 2006-07-12 08:59:32 -0700 | [diff] [blame] | 1440 | } |
| 1441 | |
| 1442 | static int arcmsr_bus_reset(struct scsi_cmnd *cmd) |
| 1443 | { |
| 1444 | struct AdapterControlBlock *acb = |
| 1445 | (struct AdapterControlBlock *)cmd->device->host->hostdata; |
| 1446 | int i; |
| 1447 | |
| 1448 | acb->num_resets++; |
| 1449 | acb->acb_flags |= ACB_F_BUS_RESET; |
| 1450 | for (i = 0; i < 400; i++) { |
| 1451 | if (!atomic_read(&acb->ccboutstandingcount)) |
| 1452 | break; |
| 1453 | arcmsr_interrupt(acb); |
| 1454 | msleep(25); |
| 1455 | } |
| 1456 | arcmsr_iop_reset(acb); |
| 1457 | acb->acb_flags &= ~ACB_F_BUS_RESET; |
| 1458 | return SUCCESS; |
| 1459 | } |
| 1460 | |
| 1461 | static void arcmsr_abort_one_cmd(struct AdapterControlBlock *acb, |
| 1462 | struct CommandControlBlock *ccb) |
| 1463 | { |
| 1464 | u32 intmask; |
| 1465 | |
| 1466 | ccb->startdone = ARCMSR_CCB_ABORTED; |
| 1467 | |
| 1468 | /* |
| 1469 | ** Wait for 3 sec for all command done. |
| 1470 | */ |
| 1471 | msleep_interruptible(3000); |
| 1472 | |
| 1473 | intmask = arcmsr_disable_outbound_ints(acb); |
| 1474 | arcmsr_polling_ccbdone(acb, ccb); |
| 1475 | arcmsr_enable_outbound_ints(acb, intmask); |
| 1476 | } |
| 1477 | |
| 1478 | static int arcmsr_abort(struct scsi_cmnd *cmd) |
| 1479 | { |
| 1480 | struct AdapterControlBlock *acb = |
| 1481 | (struct AdapterControlBlock *)cmd->device->host->hostdata; |
| 1482 | int i = 0; |
| 1483 | |
| 1484 | printk(KERN_NOTICE |
nickcheng(鄭守謙 | a1f6e02 | 2007-06-15 11:43:32 +0800 | [diff] [blame^] | 1485 | "arcmsr%d: abort device command of scsi id = %d lun = %d \n", |
Erich Chen | 1c57e86 | 2006-07-12 08:59:32 -0700 | [diff] [blame] | 1486 | acb->host->host_no, cmd->device->id, cmd->device->lun); |
| 1487 | acb->num_aborts++; |
Erich Chen | 1c57e86 | 2006-07-12 08:59:32 -0700 | [diff] [blame] | 1488 | /* |
| 1489 | ************************************************ |
| 1490 | ** the all interrupt service routine is locked |
| 1491 | ** we need to handle it as soon as possible and exit |
| 1492 | ************************************************ |
| 1493 | */ |
| 1494 | if (!atomic_read(&acb->ccboutstandingcount)) |
| 1495 | return SUCCESS; |
| 1496 | |
| 1497 | for (i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++) { |
| 1498 | struct CommandControlBlock *ccb = acb->pccb_pool[i]; |
| 1499 | if (ccb->startdone == ARCMSR_CCB_START && ccb->pcmd == cmd) { |
| 1500 | arcmsr_abort_one_cmd(acb, ccb); |
| 1501 | break; |
| 1502 | } |
| 1503 | } |
| 1504 | |
| 1505 | return SUCCESS; |
| 1506 | } |
| 1507 | |
| 1508 | static const char *arcmsr_info(struct Scsi_Host *host) |
| 1509 | { |
| 1510 | struct AdapterControlBlock *acb = |
| 1511 | (struct AdapterControlBlock *) host->hostdata; |
| 1512 | static char buf[256]; |
| 1513 | char *type; |
| 1514 | int raid6 = 1; |
| 1515 | |
| 1516 | switch (acb->pdev->device) { |
| 1517 | case PCI_DEVICE_ID_ARECA_1110: |
| 1518 | case PCI_DEVICE_ID_ARECA_1210: |
| 1519 | raid6 = 0; |
| 1520 | /*FALLTHRU*/ |
| 1521 | case PCI_DEVICE_ID_ARECA_1120: |
| 1522 | case PCI_DEVICE_ID_ARECA_1130: |
| 1523 | case PCI_DEVICE_ID_ARECA_1160: |
| 1524 | case PCI_DEVICE_ID_ARECA_1170: |
| 1525 | case PCI_DEVICE_ID_ARECA_1220: |
| 1526 | case PCI_DEVICE_ID_ARECA_1230: |
| 1527 | case PCI_DEVICE_ID_ARECA_1260: |
| 1528 | case PCI_DEVICE_ID_ARECA_1270: |
| 1529 | case PCI_DEVICE_ID_ARECA_1280: |
| 1530 | type = "SATA"; |
| 1531 | break; |
| 1532 | case PCI_DEVICE_ID_ARECA_1380: |
| 1533 | case PCI_DEVICE_ID_ARECA_1381: |
| 1534 | case PCI_DEVICE_ID_ARECA_1680: |
| 1535 | case PCI_DEVICE_ID_ARECA_1681: |
| 1536 | type = "SAS"; |
| 1537 | break; |
| 1538 | default: |
| 1539 | type = "X-TYPE"; |
| 1540 | break; |
| 1541 | } |
nickcheng(鄭守謙 | a1f6e02 | 2007-06-15 11:43:32 +0800 | [diff] [blame^] | 1542 | sprintf(buf, "Areca %s Host Adapter RAID Controller%s\n %s", |
Erich Chen | 1c57e86 | 2006-07-12 08:59:32 -0700 | [diff] [blame] | 1543 | type, raid6 ? "( RAID6 capable)" : "", |
| 1544 | ARCMSR_DRIVER_VERSION); |
| 1545 | return buf; |
| 1546 | } |
| 1547 | |
nickcheng(鄭守謙 | a1f6e02 | 2007-06-15 11:43:32 +0800 | [diff] [blame^] | 1548 | static pci_ers_result_t arcmsr_pci_slot_reset(struct pci_dev *pdev) |
| 1549 | { |
| 1550 | struct Scsi_Host *host; |
| 1551 | struct AdapterControlBlock *acb; |
| 1552 | uint8_t bus, dev_fun; |
| 1553 | int error; |
Erich Chen | 1c57e86 | 2006-07-12 08:59:32 -0700 | [diff] [blame] | 1554 | |
nickcheng(鄭守謙 | a1f6e02 | 2007-06-15 11:43:32 +0800 | [diff] [blame^] | 1555 | error = pci_enable_device(pdev); |
| 1556 | if (error) |
| 1557 | return PCI_ERS_RESULT_DISCONNECT; |
| 1558 | pci_set_master(pdev); |
| 1559 | |
| 1560 | host = scsi_host_alloc(&arcmsr_scsi_host_template, sizeof \ |
| 1561 | (struct AdapterControlBlock)); |
| 1562 | if (!host) |
| 1563 | return PCI_ERS_RESULT_DISCONNECT; |
| 1564 | acb = (struct AdapterControlBlock *)host->hostdata; |
| 1565 | memset(acb, 0, sizeof (struct AdapterControlBlock)); |
| 1566 | |
| 1567 | error = pci_set_dma_mask(pdev, DMA_64BIT_MASK); |
| 1568 | if (error) { |
| 1569 | error = pci_set_dma_mask(pdev, DMA_32BIT_MASK); |
| 1570 | if (error) { |
| 1571 | printk(KERN_WARNING |
| 1572 | "scsi%d: No suitable DMA mask available\n", |
| 1573 | host->host_no); |
| 1574 | return PCI_ERS_RESULT_DISCONNECT; |
| 1575 | } |
| 1576 | } |
| 1577 | bus = pdev->bus->number; |
| 1578 | dev_fun = pdev->devfn; |
| 1579 | acb = (struct AdapterControlBlock *) host->hostdata; |
| 1580 | memset(acb, 0, sizeof(struct AdapterControlBlock)); |
| 1581 | acb->pdev = pdev; |
| 1582 | acb->host = host; |
| 1583 | host->max_sectors = ARCMSR_MAX_XFER_SECTORS; |
| 1584 | host->max_lun = ARCMSR_MAX_TARGETLUN; |
| 1585 | host->max_id = ARCMSR_MAX_TARGETID;/*16:8*/ |
| 1586 | host->max_cmd_len = 16; /*this is issue of 64bit LBA, over 2T byte*/ |
| 1587 | host->sg_tablesize = ARCMSR_MAX_SG_ENTRIES; |
| 1588 | host->can_queue = ARCMSR_MAX_FREECCB_NUM; /* max simultaneous cmds */ |
| 1589 | host->cmd_per_lun = ARCMSR_MAX_CMD_PERLUN; |
| 1590 | host->this_id = ARCMSR_SCSI_INITIATOR_ID; |
| 1591 | host->unique_id = (bus << 8) | dev_fun; |
| 1592 | host->irq = pdev->irq; |
| 1593 | error = pci_request_regions(pdev, "arcmsr"); |
| 1594 | if (error) |
| 1595 | return PCI_ERS_RESULT_DISCONNECT; |
| 1596 | |
| 1597 | acb->pmu = ioremap(pci_resource_start(pdev, 0), |
| 1598 | pci_resource_len(pdev, 0)); |
| 1599 | if (!acb->pmu) { |
| 1600 | printk(KERN_NOTICE "arcmsr%d: memory" |
| 1601 | " mapping region fail \n", acb->host->host_no); |
| 1602 | return PCI_ERS_RESULT_DISCONNECT; |
| 1603 | } |
| 1604 | acb->acb_flags |= (ACB_F_MESSAGE_WQBUFFER_CLEARED | |
| 1605 | ACB_F_MESSAGE_RQBUFFER_CLEARED | |
| 1606 | ACB_F_MESSAGE_WQBUFFER_READED); |
| 1607 | acb->acb_flags &= ~ACB_F_SCSISTOPADAPTER; |
| 1608 | INIT_LIST_HEAD(&acb->ccb_free_list); |
| 1609 | |
| 1610 | error = arcmsr_alloc_ccb_pool(acb); |
| 1611 | if (error) |
| 1612 | return PCI_ERS_RESULT_DISCONNECT; |
| 1613 | |
| 1614 | error = request_irq(pdev->irq, arcmsr_do_interrupt, |
| 1615 | IRQF_DISABLED | IRQF_SHARED, "arcmsr", acb); |
| 1616 | if (error) |
| 1617 | return PCI_ERS_RESULT_DISCONNECT; |
| 1618 | |
| 1619 | arcmsr_iop_init(acb); |
| 1620 | if (strncmp(acb->firm_version, "V1.42", 5) >= 0) |
| 1621 | host->max_sectors = ARCMSR_MAX_XFER_SECTORS_B; |
| 1622 | |
| 1623 | pci_set_drvdata(pdev, host); |
| 1624 | |
| 1625 | error = scsi_add_host(host, &pdev->dev); |
| 1626 | if (error) |
| 1627 | return PCI_ERS_RESULT_DISCONNECT; |
| 1628 | |
| 1629 | error = arcmsr_alloc_sysfs_attr(acb); |
| 1630 | if (error) |
| 1631 | return PCI_ERS_RESULT_DISCONNECT; |
| 1632 | |
| 1633 | scsi_scan_host(host); |
| 1634 | return PCI_ERS_RESULT_RECOVERED; |
| 1635 | } |
| 1636 | |
| 1637 | static void arcmsr_pci_ers_need_reset_forepart(struct pci_dev *pdev) |
| 1638 | { |
| 1639 | struct Scsi_Host *host = pci_get_drvdata(pdev); |
| 1640 | struct AdapterControlBlock *acb = (struct AdapterControlBlock *) host->hostdata; |
| 1641 | struct MessageUnit __iomem *reg = acb->pmu; |
| 1642 | struct CommandControlBlock *ccb; |
| 1643 | /*clear and abort all outbound posted Q*/ |
| 1644 | int i = 0, found = 0; |
| 1645 | int id, lun; |
| 1646 | uint32_t flag_ccb, outbound_intstatus; |
| 1647 | |
| 1648 | while (((flag_ccb = readl(®->outbound_queueport)) != 0xFFFFFFFF) && |
| 1649 | (i++ < 256)){ |
| 1650 | ccb = (struct CommandControlBlock *)(acb->vir2phy_offset |
| 1651 | + (flag_ccb << 5)); |
| 1652 | if (ccb){ |
| 1653 | if ((ccb->acb != acb)||(ccb->startdone != |
| 1654 | ARCMSR_CCB_START)){ |
| 1655 | printk(KERN_NOTICE "arcmsr%d: polling \ |
| 1656 | get an illegal ccb"" command done ccb = '0x%p'" |
| 1657 | "ccboutstandingcount = %d \n", |
| 1658 | acb->host->host_no, ccb, |
| 1659 | atomic_read(&acb->ccboutstandingcount)); |
| 1660 | continue; |
| 1661 | } |
| 1662 | |
| 1663 | id = ccb->pcmd->device->id; |
| 1664 | lun = ccb->pcmd->device->lun; |
| 1665 | if (!(flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR)) { |
| 1666 | if (acb->devstate[id][lun] == |
| 1667 | ARECA_RAID_GONE) |
| 1668 | acb->devstate[id][lun] = |
| 1669 | ARECA_RAID_GOOD; |
| 1670 | ccb->pcmd->result = DID_OK << 16; |
| 1671 | arcmsr_ccb_complete(ccb, 1); |
| 1672 | } |
| 1673 | else { |
| 1674 | switch(ccb->arcmsr_cdb.DeviceStatus) { |
| 1675 | case ARCMSR_DEV_SELECT_TIMEOUT: { |
| 1676 | acb->devstate[id][lun] = |
| 1677 | ARECA_RAID_GONE; |
| 1678 | ccb->pcmd->result = |
| 1679 | DID_NO_CONNECT << 16; |
| 1680 | arcmsr_ccb_complete(ccb, 1); |
| 1681 | } |
| 1682 | break; |
| 1683 | |
| 1684 | case ARCMSR_DEV_ABORTED: |
| 1685 | |
| 1686 | case ARCMSR_DEV_INIT_FAIL: { |
| 1687 | acb->devstate[id][lun] = |
| 1688 | ARECA_RAID_GONE; |
| 1689 | ccb->pcmd->result = |
| 1690 | DID_BAD_TARGET << 16; |
| 1691 | arcmsr_ccb_complete(ccb, 1); |
| 1692 | } |
| 1693 | break; |
| 1694 | |
| 1695 | case ARCMSR_DEV_CHECK_CONDITION: { |
| 1696 | acb->devstate[id][lun] = |
| 1697 | ARECA_RAID_GOOD; |
| 1698 | arcmsr_report_sense_info(ccb); |
| 1699 | arcmsr_ccb_complete(ccb, 1); |
| 1700 | } |
| 1701 | break; |
| 1702 | |
| 1703 | default: |
| 1704 | printk(KERN_NOTICE |
| 1705 | "arcmsr%d: scsi \ |
| 1706 | id = %d lun = %d" |
| 1707 | " polling and \ |
| 1708 | getting command \ |
| 1709 | error done" |
| 1710 | "but got unknown \ |
| 1711 | DeviceStatus = 0x%x \n" |
| 1712 | , acb->host->host_no, |
| 1713 | id, lun, |
| 1714 | ccb->arcmsr_cdb.DeviceStatus); |
| 1715 | acb->devstate[id][lun] = |
| 1716 | ARECA_RAID_GONE; |
| 1717 | ccb->pcmd->result = |
| 1718 | DID_BAD_TARGET << 16; |
| 1719 | arcmsr_ccb_complete(ccb, 1); |
| 1720 | break; |
| 1721 | } |
| 1722 | } |
| 1723 | found = 1; |
| 1724 | } |
| 1725 | } |
| 1726 | if (found){ |
| 1727 | outbound_intstatus = readl(®->outbound_intstatus) & |
| 1728 | acb->outbound_int_enable; |
| 1729 | writel(outbound_intstatus, ®->outbound_intstatus); |
| 1730 | /*clear interrupt*/ |
| 1731 | } |
| 1732 | return; |
| 1733 | } |
| 1734 | |
| 1735 | |
| 1736 | static void arcmsr_pci_ers_disconnect_forepart(struct pci_dev *pdev) |
| 1737 | { |
| 1738 | struct Scsi_Host *host = pci_get_drvdata(pdev); |
| 1739 | struct AdapterControlBlock *acb = (struct AdapterControlBlock *) host->hostdata; |
| 1740 | struct MessageUnit __iomem *reg = acb->pmu; |
| 1741 | struct CommandControlBlock *ccb; |
| 1742 | /*clear and abort all outbound posted Q*/ |
| 1743 | int i = 0, found = 0; |
| 1744 | int id, lun; |
| 1745 | uint32_t flag_ccb, outbound_intstatus; |
| 1746 | |
| 1747 | while (((flag_ccb = readl(®->outbound_queueport)) != 0xFFFFFFFF) && |
| 1748 | (i++ < 256)){ |
| 1749 | ccb = (struct CommandControlBlock *)(acb->vir2phy_offset + |
| 1750 | (flag_ccb << 5)); |
| 1751 | if (ccb){ |
| 1752 | if ((ccb->acb != acb)||(ccb->startdone != |
| 1753 | ARCMSR_CCB_START)){ |
| 1754 | printk(KERN_NOTICE |
| 1755 | "arcmsr%d: polling get an illegal ccb" |
| 1756 | " command done ccb = '0x%p'" |
| 1757 | "ccboutstandingcount = %d \n", |
| 1758 | acb->host->host_no, ccb, |
| 1759 | atomic_read(&acb->ccboutstandingcount)); |
| 1760 | continue; |
| 1761 | } |
| 1762 | |
| 1763 | id = ccb->pcmd->device->id; |
| 1764 | lun = ccb->pcmd->device->lun; |
| 1765 | if (!(flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR)) { |
| 1766 | if (acb->devstate[id][lun] == ARECA_RAID_GONE) |
| 1767 | acb->devstate[id][lun] = ARECA_RAID_GOOD; |
| 1768 | ccb->pcmd->result = DID_OK << 16; |
| 1769 | arcmsr_ccb_complete(ccb, 1); |
| 1770 | } |
| 1771 | else { |
| 1772 | switch(ccb->arcmsr_cdb.DeviceStatus) { |
| 1773 | case ARCMSR_DEV_SELECT_TIMEOUT: { |
| 1774 | acb->devstate[id][lun] = |
| 1775 | ARECA_RAID_GONE; |
| 1776 | ccb->pcmd->result = |
| 1777 | DID_NO_CONNECT << 16; |
| 1778 | arcmsr_ccb_complete(ccb, 1); |
| 1779 | } |
| 1780 | break; |
| 1781 | |
| 1782 | case ARCMSR_DEV_ABORTED: |
| 1783 | |
| 1784 | case ARCMSR_DEV_INIT_FAIL: { |
| 1785 | acb->devstate[id][lun] = |
| 1786 | ARECA_RAID_GONE; |
| 1787 | ccb->pcmd->result = |
| 1788 | DID_BAD_TARGET << 16; |
| 1789 | arcmsr_ccb_complete(ccb, 1); |
| 1790 | } |
| 1791 | break; |
| 1792 | |
| 1793 | case ARCMSR_DEV_CHECK_CONDITION: { |
| 1794 | acb->devstate[id][lun] = |
| 1795 | ARECA_RAID_GOOD; |
| 1796 | arcmsr_report_sense_info(ccb); |
| 1797 | arcmsr_ccb_complete(ccb, 1); |
| 1798 | } |
| 1799 | break; |
| 1800 | |
| 1801 | default: |
| 1802 | printk(KERN_NOTICE "arcmsr%d: \ |
| 1803 | scsi id = %d lun = %d" |
| 1804 | " polling and \ |
| 1805 | getting command error done" |
| 1806 | "but got unknown \ |
| 1807 | DeviceStatus = 0x%x \n" |
| 1808 | , acb->host->host_no, |
| 1809 | id, lun, ccb->arcmsr_cdb.DeviceStatus); |
| 1810 | acb->devstate[id][lun] = |
| 1811 | ARECA_RAID_GONE; |
| 1812 | ccb->pcmd->result = |
| 1813 | DID_BAD_TARGET << 16; |
| 1814 | arcmsr_ccb_complete(ccb, 1); |
| 1815 | break; |
| 1816 | } |
| 1817 | } |
| 1818 | found = 1; |
| 1819 | } |
| 1820 | } |
| 1821 | if (found){ |
| 1822 | outbound_intstatus = readl(®->outbound_intstatus) & |
| 1823 | acb->outbound_int_enable; |
| 1824 | writel(outbound_intstatus, ®->outbound_intstatus); |
| 1825 | /*clear interrupt*/ |
| 1826 | } |
| 1827 | return; |
| 1828 | } |
| 1829 | |
| 1830 | static pci_ers_result_t arcmsr_pci_error_detected(struct pci_dev *pdev, |
| 1831 | pci_channel_state_t state) |
| 1832 | { |
| 1833 | switch (state) { |
| 1834 | case pci_channel_io_frozen: |
| 1835 | arcmsr_pci_ers_need_reset_forepart(pdev); |
| 1836 | return PCI_ERS_RESULT_NEED_RESET; |
| 1837 | case pci_channel_io_perm_failure: |
| 1838 | arcmsr_pci_ers_disconnect_forepart(pdev); |
| 1839 | return PCI_ERS_RESULT_DISCONNECT; |
| 1840 | break; |
| 1841 | default: |
| 1842 | return PCI_ERS_RESULT_NEED_RESET; |
| 1843 | } |
| 1844 | } |